dovecot/core-2.2: src/director/director-connection.c annotate

annotate src/director/director-connection.c @ 22562:3af1ba6b5248

director: Log info line whenever a director is added/removed from ring This can help with debugging problems.

author	Timo Sirainen <timo.sirainen@dovecot.fi>
date	Thu, 14 Sep 2017 17:29:48 +0300
parents	8bfe8a2fed69
children	17b1e65e6d70

rev	line source
21390 2e2563132d5f Updated copyright notices to include the year 2017. Stephan Bosch <stephan.bosch@dovecot.fi> parents: 21322 diff changeset	1 /* Copyright (c) 2010-2017 Dovecot authors, see the included COPYING file */
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2
14408 544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	3 /*
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	4 Handshaking:
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	5
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	6 Incoming director connections send:
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	7
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	8 VERSION
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	9 ME
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	10 <wait for DONE from remote handshake>
14408 544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	11 DONE
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	12 <make this connection our "left" connection, potentially disconnecting
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	13 another one>
14408 544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	14
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	15 Outgoing director connections send:
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	16
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	17 VERSION
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	18 ME
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	19 [0..n] DIRECTOR
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	20 HOST-HAND-START
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	21 [0..n] HOST
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	22 HOST-HAND-END
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	23 [0..n] USER
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	24 <possibly other non-handshake commands between USERs>
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	25 DONE
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	26 <wait for DONE from remote>
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	27 <make this connection our "right" connection, potentially disconnecting
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	28 another one>
14408 544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	29 */
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	30
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	31 #include "lib.h"
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	32 #include "ioloop.h"
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	33 #include "array.h"
15187 02451e967a06 Renamed network.[ch] to net.[ch]. Timo Sirainen <tss@iki.fi> parents: 15162 diff changeset	34 #include "net.h"
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	35 #include "istream.h"
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	36 #include "ostream.h"
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	37 #include "str.h"
18067 a7e830b9b967 director: Added support for backend cluster "tags". Timo Sirainen <tss@iki.fi> parents: 18065 diff changeset	38 #include "strescape.h"
20575 bceac5d8ae3b director: Added more debug information to "Ping timed out" error Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20295 diff changeset	39 #include "time-util.h"
11373 26cfc1c3a4b1 director: Update connection count when client disconnects. Timo Sirainen <tss@iki.fi> parents: 11355 diff changeset	40 #include "master-service.h"
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	41 #include "mail-host.h"
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	42 #include "director.h"
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	43 #include "director-host.h"
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	44 #include "director-request.h"
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	45 #include "director-connection.h"
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	46
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	47 #include <unistd.h>
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	48
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	49 #define MAX_INBUF_SIZE 1024
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	50 #define MAX_OUTBUF_SIZE (1024102410)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	51 #define OUTBUF_FLUSH_THRESHOLD (1024*128)
22250 81a74bce2b07 director: Fix handshake timeout lengths Timo Sirainen <timo.sirainen@dovecot.fi> parents: 21842 diff changeset	52 /* Max time to wait for connect() to finish before aborting */
81a74bce2b07 director: Fix handshake timeout lengths Timo Sirainen <timo.sirainen@dovecot.fi> parents: 21842 diff changeset	53 #define DIRECTOR_CONNECTION_CONNECT_TIMEOUT_MSECS (10*1000)
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	54 /* Max idling time before "ME" command must have been received,
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	55 or we'll disconnect. */
14467 110673e82868 director: Increased timeouts. Timo Sirainen <tss@iki.fi> parents: 14437 diff changeset	56 #define DIRECTOR_CONNECTION_ME_TIMEOUT_MSECS (10*1000)
14477 ea5b949a623b director: Increased timeout for sending USER data in handshake. Timo Sirainen <tss@iki.fi> parents: 14476 diff changeset	57 /* Max time to wait for USERs in handshake to be sent. With a lot of users the
ea5b949a623b director: Increased timeout for sending USER data in handshake. Timo Sirainen <tss@iki.fi> parents: 14476 diff changeset	58 kernel may quickly eat up everything we send, while the receiver is busy
ea5b949a623b director: Increased timeout for sending USER data in handshake. Timo Sirainen <tss@iki.fi> parents: 14476 diff changeset	59 parsing the data. */
14483 10f5456704a7 director: USER sending timeout was higher than it needed to be. Timo Sirainen <tss@iki.fi> parents: 14482 diff changeset	60 #define DIRECTOR_CONNECTION_SEND_USERS_TIMEOUT_MSECS (30*1000)
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	61 /* Max idling time before "DONE" command must have been received,
22254 58ffaff6f714 director: Use longer timeout for receiving user list in handshake Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22253 diff changeset	62 or we'll disconnect. Use a slightly larger value than for _SEND_USERS_ so
58ffaff6f714 director: Use longer timeout for receiving user list in handshake Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22253 diff changeset	63 that we'll get a better error if the sender decides to disconnect. */
58ffaff6f714 director: Use longer timeout for receiving user list in handshake Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22253 diff changeset	64 #define DIRECTOR_CONNECTION_DONE_TIMEOUT_MSECS (40*1000)
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	65 /* How long to wait for PONG for an idling connection */
14467 110673e82868 director: Increased timeouts. Timo Sirainen <tss@iki.fi> parents: 14437 diff changeset	66 #define DIRECTOR_CONNECTION_PING_IDLE_TIMEOUT_MSECS (10*1000)
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	67 /* Maximum time to wait for PONG reply */
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	68 #define DIRECTOR_CONNECTION_PONG_TIMEOUT_MSECS (60*1000)
11586 e75dab14bb2f director: Send PINGs every 15 seconds for idling director connections. Timo Sirainen <tss@iki.fi> parents: 11585 diff changeset	69 /* How long to wait to send PING when connection is idle */
e75dab14bb2f director: Send PINGs every 15 seconds for idling director connections. Timo Sirainen <tss@iki.fi> parents: 11585 diff changeset	70 #define DIRECTOR_CONNECTION_PING_INTERVAL_MSECS (15*1000)
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	71 /* How long to wait before sending PING while waiting for SYNC reply */
14405 168e3b5cb6e8 director: Changes to PING handling. Timo Sirainen <tss@iki.fi> parents: 14310 diff changeset	72 #define DIRECTOR_CONNECTION_PING_SYNC_INTERVAL_MSECS 1000
12065 ff5a47012287 director: If outgoing connection dies soon, mark the host as failed to avoid immediate reconnect. Timo Sirainen <tss@iki.fi> parents: 11816 diff changeset	73 /* If outgoing director connection exists for less than this many seconds,
ff5a47012287 director: If outgoing connection dies soon, mark the host as failed to avoid immediate reconnect. Timo Sirainen <tss@iki.fi> parents: 11816 diff changeset	74 mark the host as failed so we won't try to reconnect to it immediately */
14432 366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	75 #define DIRECTOR_SUCCESS_MIN_CONNECT_SECS 40
14575 dbe6d05fd595 director: When we find unwanted connection, wait for 10s for it to disconnect us, not 10ms. Timo Sirainen <tss@iki.fi> parents: 14571 diff changeset	76 #define DIRECTOR_WAIT_DISCONNECT_SECS 10
15132 27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	77 #define DIRECTOR_HANDSHAKE_WARN_SECS 29
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	78 #define DIRECTOR_HANDSHAKE_BYTES_LOG_MIN_SECS (60*30)
16622 a6736e42301e director: Avoid infinite SYNC loops if the originating director goes away for a long time. Timo Sirainen <tss@iki.fi> parents: 16621 diff changeset	79 #define DIRECTOR_MAX_SYNC_SEQ_DUPLICATES 4
16790 c30453a58b4c director: Detect lost director restarts and reset last_sync_seq. Timo Sirainen <tss@iki.fi> parents: 16789 diff changeset	80 /* If we receive SYNCs with a timestamp this many seconds higher than the last
c30453a58b4c director: Detect lost director restarts and reset last_sync_seq. Timo Sirainen <tss@iki.fi> parents: 16789 diff changeset	81 valid received SYNC timestamp, assume that we lost the director's restart
c30453a58b4c director: Detect lost director restarts and reset last_sync_seq. Timo Sirainen <tss@iki.fi> parents: 16789 diff changeset	82 notification and reset the last_sync_seq */
c30453a58b4c director: Detect lost director restarts and reset last_sync_seq. Timo Sirainen <tss@iki.fi> parents: 16789 diff changeset	83 #define DIRECTOR_SYNC_STALE_TIMESTAMP_RESET_SECS (60*2)
19294 d96595e2363b director: Log a warning if directors' clocks are too much out of sync. Timo Sirainen <tss@iki.fi> parents: 19293 diff changeset	84 #define DIRECTOR_MAX_CLOCK_DIFF_WARN_SECS 1
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	85
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	86 #if DIRECTOR_CONNECTION_DONE_TIMEOUT_MSECS <= DIRECTOR_CONNECTION_PING_TIMEOUT_MSECS
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	87 # error DIRECTOR_CONNECTION_DONE_TIMEOUT_MSECS is too low
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	88 #endif
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	89
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	90 #if DIRECTOR_CONNECTION_PONG_TIMEOUT_MSECS <= DIRECTOR_CONNECTION_PING_IDLE_TIMEOUT_MSECS
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	91 # error DIRECTOR_CONNECTION_PONG_TIMEOUT_MSECS is too low
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	92 #endif
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	93
14408 544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	94 #define CMD_IS_USER_HANDHAKE(args) \
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	95 (str_array_length(args) > 2)
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	96
18065 b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	97 #define DIRECTOR_OPT_CONSISTENT_HASHING "consistent-hashing"
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	98
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	99 struct director_connection {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	100 struct director *dir;
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	101 char *name;
22252 8882a5cbe76d director: Use more accurate timestamps for handshake timeout logging Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22251 diff changeset	102 struct timeval created, connected_time, me_received_time;
14431 084064444f89 director: Don't try to send the new SYNC parameter to old director versions. Timo Sirainen <tss@iki.fi> parents: 14409 diff changeset	103 unsigned int minor_version;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	104
20575 bceac5d8ae3b director: Added more debug information to "Ping timed out" error Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20295 diff changeset	105 struct timeval last_input, last_output;
bceac5d8ae3b director: Added more debug information to "Ping timed out" error Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20295 diff changeset	106
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	107 /* for incoming connections the director host isn't known until
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	108 ME-line is received */
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	109 struct director_host *host;
15132 27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	110 /* this is set only for wrong connections: */
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	111 struct director_host *connect_request_to;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	112
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	113 int fd;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	114 struct io *io;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	115 struct istream *input;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	116 struct ostream *output;
14494 d27b743c9921 director: Delay disconnecting director after sending CONNECT command. Timo Sirainen <tss@iki.fi> parents: 14493 diff changeset	117 struct timeout to_disconnect, to_ping, *to_pong;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	118
21075 6a363cb51d7f director: Code cleanup - added user director_iterate_users_() wrappers. Timo Sirainen <timo.sirainen@dovecot.fi>* parents: 21074 diff changeset	119 struct director_user_iter *user_iter;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	120
14407 d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	121 /* set during command execution */
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	122 const char cur_cmd, cur_line;
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	123
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	124 unsigned int in:1;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	125 unsigned int connected:1;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	126 unsigned int version_received:1;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	127 unsigned int me_received:1;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	128 unsigned int handshake_received:1;
11350 5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	129 unsigned int ignore_host_events:1;
11585 f0fb8151c6b4 director: A lot of fixes. Timo Sirainen <tss@iki.fi> parents: 11581 diff changeset	130 unsigned int handshake_sending_hosts:1;
11586 e75dab14bb2f director: Send PINGs every 15 seconds for idling director connections. Timo Sirainen <tss@iki.fi> parents: 11585 diff changeset	131 unsigned int ping_waiting:1;
14405 168e3b5cb6e8 director: Changes to PING handling. Timo Sirainen <tss@iki.fi> parents: 14310 diff changeset	132 unsigned int synced:1;
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	133 unsigned int wrong_host:1;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	134 unsigned int verifying_left:1;
16621 5ef62caea61b director: Update existing users' timestamps during handshake. Timo Sirainen <tss@iki.fi> parents: 16619 diff changeset	135 unsigned int users_unsorted:1;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	136 };
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	137
20972 14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	138 static void director_finish_sending_handshake(struct director_connection *conn);
18662 27baf04f2b18 director: If we disconnect a director, pass the reason all the way to deinit's debug logging. Timo Sirainen <tss@iki.fi> parents: 18137 diff changeset	139 static void director_connection_disconnected(struct director_connection **conn,
27baf04f2b18 director: If we disconnect a director, pass the reason all the way to deinit's debug logging. Timo Sirainen <tss@iki.fi> parents: 18137 diff changeset	140 const char *reason);
15132 27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	141 static void director_connection_reconnect(struct director_connection **conn,
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	142 const char *reason);
16618 0ad8da149774 director: Log director disconnection errno correctly. Timo Sirainen <tss@iki.fi> parents: 15715 diff changeset	143 static void
18662 27baf04f2b18 director: If we disconnect a director, pass the reason all the way to deinit's debug logging. Timo Sirainen <tss@iki.fi> parents: 18137 diff changeset	144 director_connection_log_disconnect(struct director_connection *conn, int err,
27baf04f2b18 director: If we disconnect a director, pass the reason all the way to deinit's debug logging. Timo Sirainen <tss@iki.fi> parents: 18137 diff changeset	145 const char *errstr);
18065 b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	146 static int director_connection_send_done(struct director_connection *conn);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	147
14407 d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	148 static void ATTR_FORMAT(2, 3)
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	149 director_cmd_error(struct director_connection conn, const char fmt, ...)
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	150 {
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	151 va_list args;
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	152
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	153 va_start(args, fmt);
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	154 i_error("director(%s): Command %s: %s (input: %s)", conn->name,
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	155 conn->cur_cmd, t_strdup_vprintf(fmt, args), conn->cur_line);
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	156 va_end(args);
14479 293ada796ae6 director: Fixed protocol error detection/handling. Timo Sirainen <tss@iki.fi> parents: 14478 diff changeset	157
18663 1c268a7cc74a director: Fixed crash if director sent invalid data too early. Timo Sirainen <tss@iki.fi> parents: 18662 diff changeset	158 if (conn->host != NULL)
1c268a7cc74a director: Fixed crash if director sent invalid data too early. Timo Sirainen <tss@iki.fi> parents: 18662 diff changeset	159 conn->host->last_protocol_failure = ioloop_time;
14407 d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	160 }
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	161
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	162 static void
22253 9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	163 director_connection_append_stats(struct director_connection conn, string_t str)
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	164 {
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	165 int input_msecs = timeval_diff_msecs(&ioloop_timeval, &conn->last_input);
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	166 int output_msecs = timeval_diff_msecs(&ioloop_timeval, &conn->last_output);
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	167 int connected_msecs = timeval_diff_msecs(&ioloop_timeval, &conn->connected_time);
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	168
22256 29ae473d0b7c director: Fix logging last input/output time when there was no input/output Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22255 diff changeset	169 str_printfa(str, "bytes in=%"PRIuUOFF_T", bytes out=%"PRIuUOFF_T,
29ae473d0b7c director: Fix logging last input/output time when there was no input/output Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22255 diff changeset	170 conn->input->v_offset, conn->output->offset);
29ae473d0b7c director: Fix logging last input/output time when there was no input/output Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22255 diff changeset	171 if (conn->last_input.tv_sec > 0) {
29ae473d0b7c director: Fix logging last input/output time when there was no input/output Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22255 diff changeset	172 str_printfa(str, ", last input %u.%03u s ago",
29ae473d0b7c director: Fix logging last input/output time when there was no input/output Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22255 diff changeset	173 input_msecs/1000, input_msecs%1000);
29ae473d0b7c director: Fix logging last input/output time when there was no input/output Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22255 diff changeset	174 }
29ae473d0b7c director: Fix logging last input/output time when there was no input/output Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22255 diff changeset	175 if (conn->last_output.tv_sec > 0) {
29ae473d0b7c director: Fix logging last input/output time when there was no input/output Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22255 diff changeset	176 str_printfa(str, ", last output %u.%03u s ago",
29ae473d0b7c director: Fix logging last input/output time when there was no input/output Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22255 diff changeset	177 output_msecs/1000, output_msecs%1000);
29ae473d0b7c director: Fix logging last input/output time when there was no input/output Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22255 diff changeset	178 }
22253 9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	179 if (conn->connected) {
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	180 str_printfa(str, ", connected %u.%03u s ago",
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	181 connected_msecs/1000, connected_msecs%1000);
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	182 }
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	183 if (o_stream_get_buffer_used_size(conn->output) > 0) {
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	184 str_printfa(str, ", %"PRIuSIZE_T" bytes in output buffer",
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	185 o_stream_get_buffer_used_size(conn->output));
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	186 }
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	187 }
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	188
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	189 static void
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	190 director_connection_init_timeout(struct director_connection *conn)
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	191 {
22253 9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	192 struct timeval start_time;
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	193 string_t *reason = t_str_new(128);
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	194
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	195 if (!conn->connected) {
22253 9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	196 start_time = conn->created;
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	197 str_append(reason, "Connect timed out");
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	198 } else if (!conn->me_received) {
22253 9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	199 start_time = conn->connected_time;
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	200 str_append(reason, "Handshaking ME timed out");
22251 dce18ed41532 director: Fix "sending handshake timed out" error to be actually logged Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22250 diff changeset	201 } else if (!conn->in) {
22253 9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	202 start_time = conn->me_received_time;
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	203 str_append(reason, "Sending handshake timed out");
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	204 } else {
22253 9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	205 start_time = conn->me_received_time;
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	206 str_append(reason, "Handshaking DONE timed out");
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	207 }
22253 9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	208 int msecs = timeval_diff_msecs(&ioloop_timeval, &start_time);
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	209 str_printfa(reason, " (%u.%03u secs, ", msecs/1000, msecs%1000);
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	210 director_connection_append_stats(conn, reason);
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	211 str_append_c(reason, ')');
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	212
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	213 i_error("director(%s): %s", conn->name, str_c(reason));
18662 27baf04f2b18 director: If we disconnect a director, pass the reason all the way to deinit's debug logging. Timo Sirainen <tss@iki.fi> parents: 18137 diff changeset	214 director_connection_disconnected(&conn, "Handshake timeout");
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	215 }
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	216
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	217 static void
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	218 director_connection_set_ping_timeout(struct director_connection *conn)
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	219 {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	220 unsigned int msecs;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	221
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	222 msecs = conn->synced \|\| !conn->handshake_received ?
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	223 DIRECTOR_CONNECTION_PING_INTERVAL_MSECS :
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	224 DIRECTOR_CONNECTION_PING_SYNC_INTERVAL_MSECS;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	225
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	226 timeout_remove(&conn->to_ping);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	227 conn->to_ping = timeout_add(msecs, director_connection_ping, conn);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	228 }
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	229
14494 d27b743c9921 director: Delay disconnecting director after sending CONNECT command. Timo Sirainen <tss@iki.fi> parents: 14493 diff changeset	230 static void director_connection_wait_timeout(struct director_connection *conn)
d27b743c9921 director: Delay disconnecting director after sending CONNECT command. Timo Sirainen <tss@iki.fi> parents: 14493 diff changeset	231 {
18662 27baf04f2b18 director: If we disconnect a director, pass the reason all the way to deinit's debug logging. Timo Sirainen <tss@iki.fi> parents: 18137 diff changeset	232 director_connection_log_disconnect(conn, ETIMEDOUT, "");
15132 27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	233 director_connection_deinit(&conn,
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	234 "Timeout waiting for disconnect after CONNECT");
14494 d27b743c9921 director: Delay disconnecting director after sending CONNECT command. Timo Sirainen <tss@iki.fi> parents: 14493 diff changeset	235 }
d27b743c9921 director: Delay disconnecting director after sending CONNECT command. Timo Sirainen <tss@iki.fi> parents: 14493 diff changeset	236
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	237 static void director_connection_send_connect(struct director_connection *conn,
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	238 struct director_host *host)
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	239 {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	240 const char *connect_str;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	241
14494 d27b743c9921 director: Delay disconnecting director after sending CONNECT command. Timo Sirainen <tss@iki.fi> parents: 14493 diff changeset	242 if (conn->to_disconnect != NULL)
d27b743c9921 director: Delay disconnecting director after sending CONNECT command. Timo Sirainen <tss@iki.fi> parents: 14493 diff changeset	243 return;
d27b743c9921 director: Delay disconnecting director after sending CONNECT command. Timo Sirainen <tss@iki.fi> parents: 14493 diff changeset	244
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	245 connect_str = t_strdup_printf("CONNECT\t%s\t%u\n",
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	246 net_ip2addr(&host->ip), host->port);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	247 director_connection_send(conn, connect_str);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	248 o_stream_uncork(conn->output);
14494 d27b743c9921 director: Delay disconnecting director after sending CONNECT command. Timo Sirainen <tss@iki.fi> parents: 14493 diff changeset	249
15132 27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	250 /* wait for a while for the remote to disconnect, so it will hopefully
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	251 see our CONNECT command. we'll also log the warning later to avoid
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	252 multiple log lines about it. */
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	253 conn->connect_request_to = host;
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	254 director_host_ref(conn->connect_request_to);
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	255
14494 d27b743c9921 director: Delay disconnecting director after sending CONNECT command. Timo Sirainen <tss@iki.fi> parents: 14493 diff changeset	256 conn->to_disconnect =
14575 dbe6d05fd595 director: When we find unwanted connection, wait for 10s for it to disconnect us, not 10ms. Timo Sirainen <tss@iki.fi> parents: 14571 diff changeset	257 timeout_add(DIRECTOR_WAIT_DISCONNECT_SECS*1000,
14494 d27b743c9921 director: Delay disconnecting director after sending CONNECT command. Timo Sirainen <tss@iki.fi> parents: 14493 diff changeset	258 director_connection_wait_timeout, conn);
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	259 }
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	260
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	261 static void director_connection_assigned(struct director_connection *conn)
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	262 {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	263 struct director *dir = conn->dir;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	264
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	265 if (dir->left != NULL && dir->right != NULL) {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	266 /* we're connected to both directors. see if the ring is
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	267 finished by sending a SYNC. if we get it back, it's done. */
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	268 dir->sync_seq++;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	269 director_set_ring_unsynced(dir);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	270 director_sync_send(dir, dir->self_host, dir->sync_seq,
19293 8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	271 DIRECTOR_VERSION_MINOR, ioloop_time,
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	272 mail_hosts_hash(dir->mail_hosts));
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	273 }
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	274 director_connection_set_ping_timeout(conn);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	275 }
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	276
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	277 static bool director_connection_assign_left(struct director_connection *conn)
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	278 {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	279 struct director *dir = conn->dir;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	280
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	281 i_assert(conn->in);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	282 i_assert(dir->left != conn);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	283
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	284 /* make sure this is the correct incoming connection */
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	285 if (conn->host->self) {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	286 i_error("Connection from self, dropping");
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	287 return FALSE;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	288 } else if (dir->left == NULL) {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	289 /* no conflicts yet */
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	290 } else if (dir->left->host == conn->host) {
15132 27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	291 i_warning("Replacing left director connection %s with %s",
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	292 dir->left->host->name, conn->host->name);
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	293 director_connection_deinit(&dir->left, t_strdup_printf(
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	294 "Replacing with %s", conn->host->name));
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	295 } else if (dir->left->verifying_left) {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	296 /* we're waiting to verify if our current left is still
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	297 working. if we don't receive a PONG, the current left
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	298 gets disconnected and a new left gets assigned. if we do
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	299 receive a PONG, we'll wait until the current left
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	300 disconnects us and then reassign the new left. */
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	301 return TRUE;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	302 } else if (director_host_cmp_to_self(dir->left->host, conn->host,
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	303 dir->self_host) < 0) {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	304 /* the old connection is the correct one.
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	305 refer the client there (FIXME: do we ever get here?) */
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	306 director_connection_send_connect(conn, dir->left->host);
14494 d27b743c9921 director: Delay disconnecting director after sending CONNECT command. Timo Sirainen <tss@iki.fi> parents: 14493 diff changeset	307 return TRUE;
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	308 } else {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	309 /* this new connection is the correct one, but wait until the
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	310 old connection gets disconnected before using this one.
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	311 that guarantees that the director inserting itself into
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	312 the ring has finished handshaking its left side, so the
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	313 switch will be fast. */
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	314 return TRUE;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	315 }
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	316 dir->left = conn;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	317 i_free(conn->name);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	318 conn->name = i_strdup_printf("%s/left", conn->host->name);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	319 director_connection_assigned(conn);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	320 return TRUE;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	321 }
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	322
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	323 static void director_assign_left(struct director *dir)
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	324 {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	325 struct director_connection conn, const *connp;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	326
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	327 array_foreach(&dir->connections, connp) {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	328 conn = *connp;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	329
14494 d27b743c9921 director: Delay disconnecting director after sending CONNECT command. Timo Sirainen <tss@iki.fi> parents: 14493 diff changeset	330 if (conn->in && conn->handshake_received &&
d27b743c9921 director: Delay disconnecting director after sending CONNECT command. Timo Sirainen <tss@iki.fi> parents: 14493 diff changeset	331 conn->to_disconnect == NULL && conn != dir->left) {
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	332 /* either use this or disconnect it */
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	333 if (!director_connection_assign_left(conn)) {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	334 /* we don't want this */
15132 27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	335 director_connection_deinit(&conn,
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	336 "Unwanted incoming connection");
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	337 director_assign_left(dir);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	338 break;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	339 }
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	340 }
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	341 }
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	342 }
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	343
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	344 static bool director_has_outgoing_connections(struct director *dir)
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	345 {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	346 struct director_connection const connp;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	347
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	348 array_foreach(&dir->connections, connp) {
14494 d27b743c9921 director: Delay disconnecting director after sending CONNECT command. Timo Sirainen <tss@iki.fi> parents: 14493 diff changeset	349 if (!(connp)->in && (connp)->to_disconnect == NULL)
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	350 return TRUE;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	351 }
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	352 return FALSE;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	353 }
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	354
20971 3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	355 static void director_send_delayed_syncs(struct director *dir)
3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	356 {
3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	357 struct director_host const hostp;
3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	358
3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	359 i_assert(dir->right != NULL);
3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	360
3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	361 dir_debug("director(%s): Sending delayed SYNCs", dir->right->name);
3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	362 array_foreach(&dir->dir_hosts, hostp) {
3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	363 if ((*hostp)->delayed_sync_seq == 0)
3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	364 continue;
3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	365
3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	366 director_sync_send(dir, hostp, (hostp)->delayed_sync_seq,
3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	367 (*hostp)->delayed_sync_minor_version,
3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	368 (*hostp)->delayed_sync_timestamp,
3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	369 (*hostp)->delayed_sync_hosts_hash);
3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	370 (*hostp)->delayed_sync_seq = 0;
3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	371 }
3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	372 }
3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	373
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	374 static bool director_connection_assign_right(struct director_connection *conn)
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	375 {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	376 struct director *dir = conn->dir;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	377
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	378 i_assert(!conn->in);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	379
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	380 if (dir->right != NULL) {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	381 /* see if we should disconnect or keep the existing
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	382 connection. */
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	383 if (director_host_cmp_to_self(conn->host, dir->right->host,
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	384 dir->self_host) <= 0) {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	385 /* the old connection is the correct one */
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	386 i_warning("Aborting incorrect outgoing connection to %s "
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	387 "(already connected to correct one: %s)",
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	388 conn->host->name, dir->right->host->name);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	389 conn->wrong_host = TRUE;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	390 return FALSE;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	391 }
15132 27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	392 i_warning("Replacing right director connection %s with %s",
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	393 dir->right->host->name, conn->host->name);
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	394 director_connection_deinit(&dir->right, t_strdup_printf(
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	395 "Replacing with %s", conn->host->name));
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	396 }
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	397 dir->right = conn;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	398 i_free(conn->name);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	399 conn->name = i_strdup_printf("%s/right", conn->host->name);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	400 director_connection_assigned(conn);
20971 3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	401 director_send_delayed_syncs(dir);
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	402 return TRUE;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	403 }
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	404
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	405 static bool
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	406 director_args_parse_ip_port(struct director_connection *conn,
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	407 const char const args,
19035 aabfe48db1cf Changed type of internet port values to in_port_t everywhere. Stephan Bosch <stephan@rename-it.nl> parents: 18858 diff changeset	408 struct ip_addr ip_r, in_port_t port_r)
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	409 {
14407 d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	410 if (args[0] == NULL \|\| args[1] == NULL) {
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	411 director_cmd_error(conn, "Missing IP+port parameters");
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	412 return FALSE;
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	413 }
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	414 if (net_addr2ip(args[0], ip_r) < 0) {
14407 d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	415 director_cmd_error(conn, "Invalid IP address: %s", args[0]);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	416 return FALSE;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	417 }
19035 aabfe48db1cf Changed type of internet port values to in_port_t everywhere. Stephan Bosch <stephan@rename-it.nl> parents: 18858 diff changeset	418 if (net_str2port(args[1], port_r) < 0) {
14407 d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	419 director_cmd_error(conn, "Invalid port: %s", args[1]);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	420 return FALSE;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	421 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	422 return TRUE;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	423 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	424
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	425 static bool director_cmd_me(struct director_connection *conn,
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	426 const char const args)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	427 {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	428 struct director *dir = conn->dir;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	429 const char *connect_str;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	430 struct ip_addr ip;
19035 aabfe48db1cf Changed type of internet port values to in_port_t everywhere. Stephan Bosch <stephan@rename-it.nl> parents: 18858 diff changeset	431 in_port_t port;
14432 366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	432 time_t next_comm_attempt;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	433
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	434 if (!director_args_parse_ip_port(conn, args, &ip, &port))
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	435 return FALSE;
14408 544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	436 if (conn->me_received) {
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	437 director_cmd_error(conn, "Duplicate ME");
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	438 return FALSE;
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	439 }
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	440
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	441 if (!conn->in && (!net_ip_compare(&conn->host->ip, &ip) \|\|
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	442 conn->host->port != port)) {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	443 i_error("Remote director thinks it's someone else "
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	444 "(connected to %s:%u, remote says it's %s:%u)",
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	445 net_ip2addr(&conn->host->ip), conn->host->port,
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	446 net_ip2addr(&ip), port);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	447 return FALSE;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	448 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	449 conn->me_received = TRUE;
22252 8882a5cbe76d director: Use more accurate timestamps for handshake timeout logging Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22251 diff changeset	450 conn->me_received_time = ioloop_timeval;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	451
19294 d96595e2363b director: Log a warning if directors' clocks are too much out of sync. Timo Sirainen <tss@iki.fi> parents: 19293 diff changeset	452 if (args[2] != NULL) {
d96595e2363b director: Log a warning if directors' clocks are too much out of sync. Timo Sirainen <tss@iki.fi> parents: 19293 diff changeset	453 time_t remote_time;
d96595e2363b director: Log a warning if directors' clocks are too much out of sync. Timo Sirainen <tss@iki.fi> parents: 19293 diff changeset	454 int diff;
d96595e2363b director: Log a warning if directors' clocks are too much out of sync. Timo Sirainen <tss@iki.fi> parents: 19293 diff changeset	455
d96595e2363b director: Log a warning if directors' clocks are too much out of sync. Timo Sirainen <tss@iki.fi> parents: 19293 diff changeset	456 if (str_to_time(args[2], &remote_time) < 0) {
d96595e2363b director: Log a warning if directors' clocks are too much out of sync. Timo Sirainen <tss@iki.fi> parents: 19293 diff changeset	457 director_cmd_error(conn, "Invalid ME timestamp");
d96595e2363b director: Log a warning if directors' clocks are too much out of sync. Timo Sirainen <tss@iki.fi> parents: 19293 diff changeset	458 return FALSE;
d96595e2363b director: Log a warning if directors' clocks are too much out of sync. Timo Sirainen <tss@iki.fi> parents: 19293 diff changeset	459 }
d96595e2363b director: Log a warning if directors' clocks are too much out of sync. Timo Sirainen <tss@iki.fi> parents: 19293 diff changeset	460 diff = ioloop_time - remote_time;
d96595e2363b director: Log a warning if directors' clocks are too much out of sync. Timo Sirainen <tss@iki.fi> parents: 19293 diff changeset	461 if (diff > DIRECTOR_MAX_CLOCK_DIFF_WARN_SECS \|\|
d96595e2363b director: Log a warning if directors' clocks are too much out of sync. Timo Sirainen <tss@iki.fi> parents: 19293 diff changeset	462 (diff < 0 && -diff > DIRECTOR_MAX_CLOCK_DIFF_WARN_SECS)) {
d96595e2363b director: Log a warning if directors' clocks are too much out of sync. Timo Sirainen <tss@iki.fi> parents: 19293 diff changeset	463 i_warning("Director %s clock differs from ours by %d secs",
d96595e2363b director: Log a warning if directors' clocks are too much out of sync. Timo Sirainen <tss@iki.fi> parents: 19293 diff changeset	464 conn->name, diff);
d96595e2363b director: Log a warning if directors' clocks are too much out of sync. Timo Sirainen <tss@iki.fi> parents: 19293 diff changeset	465 }
d96595e2363b director: Log a warning if directors' clocks are too much out of sync. Timo Sirainen <tss@iki.fi> parents: 19293 diff changeset	466 }
d96595e2363b director: Log a warning if directors' clocks are too much out of sync. Timo Sirainen <tss@iki.fi> parents: 19293 diff changeset	467
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	468 timeout_remove(&conn->to_ping);
22250 81a74bce2b07 director: Fix handshake timeout lengths Timo Sirainen <timo.sirainen@dovecot.fi> parents: 21842 diff changeset	469 if (conn->in) {
81a74bce2b07 director: Fix handshake timeout lengths Timo Sirainen <timo.sirainen@dovecot.fi> parents: 21842 diff changeset	470 conn->to_ping = timeout_add(DIRECTOR_CONNECTION_DONE_TIMEOUT_MSECS,
81a74bce2b07 director: Fix handshake timeout lengths Timo Sirainen <timo.sirainen@dovecot.fi> parents: 21842 diff changeset	471 director_connection_init_timeout, conn);
81a74bce2b07 director: Fix handshake timeout lengths Timo Sirainen <timo.sirainen@dovecot.fi> parents: 21842 diff changeset	472 } else {
81a74bce2b07 director: Fix handshake timeout lengths Timo Sirainen <timo.sirainen@dovecot.fi> parents: 21842 diff changeset	473 conn->to_ping = timeout_add(DIRECTOR_CONNECTION_SEND_USERS_TIMEOUT_MSECS,
81a74bce2b07 director: Fix handshake timeout lengths Timo Sirainen <timo.sirainen@dovecot.fi> parents: 21842 diff changeset	474 director_connection_init_timeout, conn);
81a74bce2b07 director: Fix handshake timeout lengths Timo Sirainen <timo.sirainen@dovecot.fi> parents: 21842 diff changeset	475 }
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	476
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	477 if (!conn->in)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	478 return TRUE;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	479
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	480 /* Incoming connection:
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	481
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	482 a) we don't have an established ring yet. make sure we're connecting
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	483 to our right side (which might become our left side).
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	484
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	485 b) it's our current "left" connection. the previous connection
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	486 is most likely dead.
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	487
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	488 c) we have an existing ring. tell our current "left" to connect to
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	489 it with CONNECT command.
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	490
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	491 d) the incoming connection doesn't belong to us at all, refer it
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	492 elsewhere with CONNECT. however, before disconnecting it verify
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	493 first that our left side is actually still functional.
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	494 */
14571 42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	495 i_assert(conn->host == NULL);
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	496 conn->host = director_host_get(dir, &ip, port);
14571 42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	497 /* the host shouldn't be removed at this point, but if for some
42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	498 reason it is we don't want to crash */
42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	499 conn->host->removed = FALSE;
42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	500 director_host_ref(conn->host);
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	501 /* make sure we don't keep old sequence values across restarts */
16699 9531ec8afe8b director: Reset last-seen-sync-sequence after remote director restarts. Timo Sirainen <tss@iki.fi> parents: 16695 diff changeset	502 director_host_restarted(conn->host);
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	503
14432 366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	504 next_comm_attempt = conn->host->last_protocol_failure +
366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	505 DIRECTOR_PROTOCOL_FAILURE_RETRY_SECS;
366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	506 if (next_comm_attempt > ioloop_time) {
366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	507 /* the director recently sent invalid protocol data,
366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	508 don't try retrying yet */
366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	509 i_error("director(%s): Remote sent invalid protocol data recently, "
366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	510 "waiting %u secs before allowing further communication",
366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	511 conn->name, (unsigned int)(next_comm_attempt-ioloop_time));
366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	512 return FALSE;
366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	513 } else if (dir->left == NULL) {
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	514 /* a) - just in case the left is also our right side reset
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	515 its failed state, so we can connect to it */
14432 366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	516 conn->host->last_network_failure = 0;
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	517 if (!director_has_outgoing_connections(dir))
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	518 director_connect(dir);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	519 } else if (dir->left->host == conn->host) {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	520 /* b) */
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	521 i_assert(dir->left != conn);
15132 27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	522 director_connection_deinit(&dir->left,
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	523 "Replacing with new incoming connection");
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	524 } else if (director_host_cmp_to_self(conn->host, dir->left->host,
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	525 dir->self_host) < 0) {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	526 /* c) */
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	527 connect_str = t_strdup_printf("CONNECT\t%s\t%u\n",
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	528 net_ip2addr(&conn->host->ip),
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	529 conn->host->port);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	530 director_connection_send(dir->left, connect_str);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	531 } else {
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	532 /* d) */
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	533 dir->left->verifying_left = TRUE;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	534 director_connection_ping(dir->left);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	535 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	536 return TRUE;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	537 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	538
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	539 static bool
14303 d048cebc1fd4 director: Add more info to "User hash .. is being redirected to two hosts" error. Timo Sirainen <tss@iki.fi> parents: 14133 diff changeset	540 director_user_refresh(struct director_connection *conn,
d048cebc1fd4 director: Add more info to "User hash .. is being redirected to two hosts" error. Timo Sirainen <tss@iki.fi> parents: 14133 diff changeset	541 unsigned int username_hash, struct mail_host *host,
20978 7a4fb29a4e52 director: If user host conflict is detected, make sure new host is sent back. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20974 diff changeset	542 time_t timestamp, bool weak, bool *forced_r,
7a4fb29a4e52 director: If user host conflict is detected, make sure new host is sent back. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20974 diff changeset	543 struct user **user_r)
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	544 {
14303 d048cebc1fd4 director: Add more info to "User hash .. is being redirected to two hosts" error. Timo Sirainen <tss@iki.fi> parents: 14133 diff changeset	545 struct director *dir = conn->dir;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	546 struct user *user;
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	547 bool ret = FALSE, unset_weak_user = FALSE;
21079 d6f399a7f672 director: Keep per-tag directory Aki Tuomi <aki.tuomi@dovecot.fi> parents: 21077 diff changeset	548 struct user_directory *users = host->tag->users;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	549
20978 7a4fb29a4e52 director: If user host conflict is detected, make sure new host is sent back. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20974 diff changeset	550 *forced_r = FALSE;
7a4fb29a4e52 director: If user host conflict is detected, make sure new host is sent back. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20974 diff changeset	551
21074 6543f5b25252 director: Code cleanup - use temporary users variables Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20988 diff changeset	552 user = user_directory_lookup(users, username_hash);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	553 if (user == NULL) {
21074 6543f5b25252 director: Code cleanup - use temporary users variables Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20988 diff changeset	554 *user_r = user_directory_add(users, username_hash,
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	555 host, timestamp);
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	556 (*user_r)->weak = weak;
15326 48af47f2eb9c director: -D parameter now enables extensive debug logging. Timo Sirainen <tss@iki.fi> parents: 15324 diff changeset	557 dir_debug("user refresh: %u added", username_hash);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	558 return TRUE;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	559 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	560
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	561 if (user->weak) {
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	562 if (!weak) {
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	563 /* removing user's weakness */
15326 48af47f2eb9c director: -D parameter now enables extensive debug logging. Timo Sirainen <tss@iki.fi> parents: 15324 diff changeset	564 dir_debug("user refresh: %u weakness removed",
48af47f2eb9c director: -D parameter now enables extensive debug logging. Timo Sirainen <tss@iki.fi> parents: 15324 diff changeset	565 username_hash);
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	566 unset_weak_user = TRUE;
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	567 user->weak = FALSE;
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	568 ret = TRUE;
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	569 } else {
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	570 /* weak user marked again as weak */
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	571 }
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	572 } else if (weak &&
21074 6543f5b25252 director: Code cleanup - use temporary users variables Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20988 diff changeset	573 !user_directory_user_is_recently_updated(users, user)) {
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	574 /* mark the user as weak */
15326 48af47f2eb9c director: -D parameter now enables extensive debug logging. Timo Sirainen <tss@iki.fi> parents: 15324 diff changeset	575 dir_debug("user refresh: %u set weak", username_hash);
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	576 user->weak = TRUE;
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	577 ret = TRUE;
16619 9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	578 } else if (weak) {
9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	579 dir_debug("user refresh: %u weak update to %s ignored, "
9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	580 "we recently changed it to %s",
9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	581 username_hash, net_ip2addr(&host->ip),
9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	582 net_ip2addr(&user->host->ip));
9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	583 host = user->host;
9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	584 ret = TRUE;
9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	585 } else if (user->host == host) {
9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	586 /* update to the same host */
21074 6543f5b25252 director: Code cleanup - use temporary users variables Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20988 diff changeset	587 } else if (user_directory_user_is_near_expiring(users, user)) {
16619 9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	588 /* host conflict for a user that is already near expiring. we can
9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	589 assume that the other director had already dropped this user
9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	590 and we should have as well. use the new host. */
9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	591 dir_debug("user refresh: %u is nearly expired, "
9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	592 "replacing host %s with %s", username_hash,
9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	593 net_ip2addr(&user->host->ip), net_ip2addr(&host->ip));
9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	594 ret = TRUE;
20986 410eacd7ad40 director: Code cleanup - added USER_IS_BEING_KILLED() macro Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20981 diff changeset	595 } else if (USER_IS_BEING_KILLED(user)) {
18708 51ee438392c7 director: Moving a user to another host sometimes caused the move to fail. Timo Sirainen <tss@iki.fi> parents: 18665 diff changeset	596 /* user is still being moved - ignore conflicting host updates
51ee438392c7 director: Moving a user to another host sometimes caused the move to fail. Timo Sirainen <tss@iki.fi> parents: 18665 diff changeset	597 from other directors who don't yet know about the move. */
51ee438392c7 director: Moving a user to another host sometimes caused the move to fail. Timo Sirainen <tss@iki.fi> parents: 18665 diff changeset	598 dir_debug("user refresh: %u is being moved, "
51ee438392c7 director: Moving a user to another host sometimes caused the move to fail. Timo Sirainen <tss@iki.fi> parents: 18665 diff changeset	599 "preserve its host %s instead of replacing with %s",
51ee438392c7 director: Moving a user to another host sometimes caused the move to fail. Timo Sirainen <tss@iki.fi> parents: 18665 diff changeset	600 username_hash, net_ip2addr(&user->host->ip),
51ee438392c7 director: Moving a user to another host sometimes caused the move to fail. Timo Sirainen <tss@iki.fi> parents: 18665 diff changeset	601 net_ip2addr(&host->ip));
51ee438392c7 director: Moving a user to another host sometimes caused the move to fail. Timo Sirainen <tss@iki.fi> parents: 18665 diff changeset	602 host = user->host;
16619 9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	603 } else {
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	604 /* non-weak user received a non-weak update with
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	605 conflicting host. this shouldn't happen. */
14303 d048cebc1fd4 director: Add more info to "User hash .. is being redirected to two hosts" error. Timo Sirainen <tss@iki.fi> parents: 14133 diff changeset	606 string_t *str = t_str_new(128);
d048cebc1fd4 director: Add more info to "User hash .. is being redirected to two hosts" error. Timo Sirainen <tss@iki.fi> parents: 14133 diff changeset	607
d048cebc1fd4 director: Add more info to "User hash .. is being redirected to two hosts" error. Timo Sirainen <tss@iki.fi> parents: 14133 diff changeset	608 str_printfa(str, "User hash %u "
d048cebc1fd4 director: Add more info to "User hash .. is being redirected to two hosts" error. Timo Sirainen <tss@iki.fi> parents: 14133 diff changeset	609 "is being redirected to two hosts: %s and %s",
d048cebc1fd4 director: Add more info to "User hash .. is being redirected to two hosts" error. Timo Sirainen <tss@iki.fi> parents: 14133 diff changeset	610 username_hash, net_ip2addr(&user->host->ip),
d048cebc1fd4 director: Add more info to "User hash .. is being redirected to two hosts" error. Timo Sirainen <tss@iki.fi> parents: 14133 diff changeset	611 net_ip2addr(&host->ip));
d048cebc1fd4 director: Add more info to "User hash .. is being redirected to two hosts" error. Timo Sirainen <tss@iki.fi> parents: 14133 diff changeset	612 str_printfa(str, " (old_ts=%ld", (long)user->timestamp);
d048cebc1fd4 director: Add more info to "User hash .. is being redirected to two hosts" error. Timo Sirainen <tss@iki.fi> parents: 14133 diff changeset	613
d048cebc1fd4 director: Add more info to "User hash .. is being redirected to two hosts" error. Timo Sirainen <tss@iki.fi> parents: 14133 diff changeset	614 if (!conn->handshake_received) {
d048cebc1fd4 director: Add more info to "User hash .. is being redirected to two hosts" error. Timo Sirainen <tss@iki.fi> parents: 14133 diff changeset	615 str_printfa(str, ",handshaking,recv_ts=%ld",
d048cebc1fd4 director: Add more info to "User hash .. is being redirected to two hosts" error. Timo Sirainen <tss@iki.fi> parents: 14133 diff changeset	616 (long)timestamp);
d048cebc1fd4 director: Add more info to "User hash .. is being redirected to two hosts" error. Timo Sirainen <tss@iki.fi> parents: 14133 diff changeset	617 }
20986 410eacd7ad40 director: Code cleanup - added USER_IS_BEING_KILLED() macro Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20981 diff changeset	618 if (USER_IS_BEING_KILLED(user)) {
20988 9d4039e2ae25 director: Moved all user killing state to struct director_kill_context Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20986 diff changeset	619 if (user->kill_ctx->to_move != NULL)
9d4039e2ae25 director: Moved all user killing state to struct director_kill_context Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20986 diff changeset	620 str_append(str, ",moving");
20974 7ea3a96eea43 director: Log user's kill_state with a human-readable string. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20972 diff changeset	621 str_printfa(str, ",kill_state=%s",
20988 9d4039e2ae25 director: Moved all user killing state to struct director_kill_context Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20986 diff changeset	622 user_kill_state_names[user->kill_ctx->kill_state]);
20974 7ea3a96eea43 director: Log user's kill_state with a human-readable string. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20972 diff changeset	623 }
14303 d048cebc1fd4 director: Add more info to "User hash .. is being redirected to two hosts" error. Timo Sirainen <tss@iki.fi> parents: 14133 diff changeset	624 str_append_c(str, ')');
d048cebc1fd4 director: Add more info to "User hash .. is being redirected to two hosts" error. Timo Sirainen <tss@iki.fi> parents: 14133 diff changeset	625 i_error("%s", str_c(str));
11581 ecf195115922 director: If same user gets redirected to two hosts, don't crash later. Timo Sirainen <tss@iki.fi> parents: 11579 diff changeset	626
11585 f0fb8151c6b4 director: A lot of fixes. Timo Sirainen <tss@iki.fi> parents: 11581 diff changeset	627 /* we want all the directors to redirect the user to same
f0fb8151c6b4 director: A lot of fixes. Timo Sirainen <tss@iki.fi> parents: 11581 diff changeset	628 server, but we don't want two directors fighting over which
f0fb8151c6b4 director: A lot of fixes. Timo Sirainen <tss@iki.fi> parents: 11581 diff changeset	629 server it belongs to, so always use the lower IP address */
f0fb8151c6b4 director: A lot of fixes. Timo Sirainen <tss@iki.fi> parents: 11581 diff changeset	630 if (net_ip_cmp(&user->host->ip, &host->ip) > 0) {
f0fb8151c6b4 director: A lot of fixes. Timo Sirainen <tss@iki.fi> parents: 11581 diff changeset	631 /* change the host. we'll also need to remove the user
f0fb8151c6b4 director: A lot of fixes. Timo Sirainen <tss@iki.fi> parents: 11581 diff changeset	632 from the old host's user_count, because we can't
20978 7a4fb29a4e52 director: If user host conflict is detected, make sure new host is sent back. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20974 diff changeset	633 keep track of the user for more than one host.
7a4fb29a4e52 director: If user host conflict is detected, make sure new host is sent back. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20974 diff changeset	634
7a4fb29a4e52 director: If user host conflict is detected, make sure new host is sent back. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20974 diff changeset	635 send the updated USER back to the sender as well. */
7a4fb29a4e52 director: If user host conflict is detected, make sure new host is sent back. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20974 diff changeset	636 *forced_r = TRUE;
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	637 } else {
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	638 /* keep the host */
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	639 host = user->host;
11585 f0fb8151c6b4 director: A lot of fixes. Timo Sirainen <tss@iki.fi> parents: 11581 diff changeset	640 }
17419 8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	641 /* especially IMAP connections can take a long time to die.
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	642 make sure we kill off the connections in the wrong
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	643 backends. */
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	644 director_kick_user_hash(dir, dir->self_host, NULL,
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	645 username_hash, &host->ip);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	646 ret = TRUE;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	647 }
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	648 if (user->host != host) {
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	649 user->host->user_count--;
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	650 user->host = host;
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	651 user->host->user_count++;
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	652 ret = TRUE;
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	653 }
14303 d048cebc1fd4 director: Add more info to "User hash .. is being redirected to two hosts" error. Timo Sirainen <tss@iki.fi> parents: 14133 diff changeset	654 if (timestamp == ioloop_time && (time_t)user->timestamp != timestamp) {
21074 6543f5b25252 director: Code cleanup - use temporary users variables Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20988 diff changeset	655 user_directory_refresh(users, user);
14303 d048cebc1fd4 director: Add more info to "User hash .. is being redirected to two hosts" error. Timo Sirainen <tss@iki.fi> parents: 14133 diff changeset	656 ret = TRUE;
d048cebc1fd4 director: Add more info to "User hash .. is being redirected to two hosts" error. Timo Sirainen <tss@iki.fi> parents: 14133 diff changeset	657 }
15326 48af47f2eb9c director: -D parameter now enables extensive debug logging. Timo Sirainen <tss@iki.fi> parents: 15324 diff changeset	658 dir_debug("user refresh: %u refreshed timeout to %ld",
48af47f2eb9c director: -D parameter now enables extensive debug logging. Timo Sirainen <tss@iki.fi> parents: 15324 diff changeset	659 username_hash, (long)user->timestamp);
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	660
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	661 if (unset_weak_user) {
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	662 /* user is no longer weak. handle pending requests for
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	663 this user if there are any */
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	664 director_set_state_changed(conn->dir);
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	665 }
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	666
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	667 *user_r = user;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	668 return ret;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	669 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	670
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	671 static bool
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	672 director_handshake_cmd_user(struct director_connection *conn,
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	673 const char const args)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	674 {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	675 unsigned int username_hash, timestamp;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	676 struct ip_addr ip;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	677 struct mail_host *host;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	678 struct user *user;
20978 7a4fb29a4e52 director: If user host conflict is detected, make sure new host is sent back. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20974 diff changeset	679 bool weak, forced;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	680
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	681 if (str_array_length(args) < 3 \|\|
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	682 str_to_uint(args[0], &username_hash) < 0 \|\|
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	683 net_addr2ip(args[1], &ip) < 0 \|\|
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	684 str_to_uint(args[2], &timestamp) < 0) {
14407 d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	685 director_cmd_error(conn, "Invalid parameters");
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	686 return FALSE;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	687 }
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	688 weak = args[3] != NULL && args[3][0] == 'w';
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	689
11352 19336bddada2 director: Code cleanup - keep mail hosts in a struct rather than in static variables. Timo Sirainen <tss@iki.fi> parents: 11350 diff changeset	690 host = mail_host_lookup(conn->dir->mail_hosts, &ip);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	691 if (host == NULL) {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	692 i_error("director(%s): USER used unknown host %s in handshake",
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	693 conn->name, args[1]);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	694 return FALSE;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	695 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	696
14682 d0d7b810646b Make sure we check all the functions' return values. Minor API changes to simplify this. Timo Sirainen <tss@iki.fi> parents: 14681 diff changeset	697 (void)director_user_refresh(conn, username_hash, host,
20978 7a4fb29a4e52 director: If user host conflict is detected, make sure new host is sent back. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20974 diff changeset	698 timestamp, weak, &forced, &user);
16621 5ef62caea61b director: Update existing users' timestamps during handshake. Timo Sirainen <tss@iki.fi> parents: 16619 diff changeset	699 if (user->timestamp < timestamp) {
5ef62caea61b director: Update existing users' timestamps during handshake. Timo Sirainen <tss@iki.fi> parents: 16619 diff changeset	700 conn->users_unsorted = TRUE;
5ef62caea61b director: Update existing users' timestamps during handshake. Timo Sirainen <tss@iki.fi> parents: 16619 diff changeset	701 user->timestamp = timestamp;
5ef62caea61b director: Update existing users' timestamps during handshake. Timo Sirainen <tss@iki.fi> parents: 16619 diff changeset	702 }
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	703 return TRUE;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	704 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	705
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	706 static bool
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	707 director_cmd_user(struct director_connection *conn,
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	708 const char const args)
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	709 {
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	710 unsigned int username_hash;
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	711 struct ip_addr ip;
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	712 struct mail_host *host;
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	713 struct user *user;
20978 7a4fb29a4e52 director: If user host conflict is detected, make sure new host is sent back. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20974 diff changeset	714 bool forced;
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	715
14408 544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	716 /* NOTE: if more parameters are added, update also
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	717 CMD_IS_USER_HANDHAKE() macro */
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	718 if (str_array_length(args) != 2 \|\|
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	719 str_to_uint(args[0], &username_hash) < 0 \|\|
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	720 net_addr2ip(args[1], &ip) < 0) {
14407 d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	721 director_cmd_error(conn, "Invalid parameters");
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	722 return FALSE;
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	723 }
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	724
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	725 host = mail_host_lookup(conn->dir->mail_hosts, &ip);
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	726 if (host == NULL) {
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	727 /* we probably just removed this host. */
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	728 return TRUE;
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	729 }
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	730
14303 d048cebc1fd4 director: Add more info to "User hash .. is being redirected to two hosts" error. Timo Sirainen <tss@iki.fi> parents: 14133 diff changeset	731 if (director_user_refresh(conn, username_hash,
20978 7a4fb29a4e52 director: If user host conflict is detected, make sure new host is sent back. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20974 diff changeset	732 host, ioloop_time, FALSE, &forced, &user)) {
7a4fb29a4e52 director: If user host conflict is detected, make sure new host is sent back. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20974 diff changeset	733 struct director_host *src_host =
7a4fb29a4e52 director: If user host conflict is detected, make sure new host is sent back. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20974 diff changeset	734 forced ? conn->dir->self_host : conn->host;
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	735 i_assert(!user->weak);
20978 7a4fb29a4e52 director: If user host conflict is detected, make sure new host is sent back. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20974 diff changeset	736 director_update_user(conn->dir, src_host, user);
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	737 }
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	738 return TRUE;
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	739 }
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	740
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	741 static bool director_cmd_director(struct director_connection *conn,
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	742 const char const args)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	743 {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	744 struct director_host *host;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	745 struct ip_addr ip;
19035 aabfe48db1cf Changed type of internet port values to in_port_t everywhere. Stephan Bosch <stephan@rename-it.nl> parents: 18858 diff changeset	746 in_port_t port;
22562 3af1ba6b5248 director: Log info line whenever a director is added/removed from ring Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22446 diff changeset	747 bool log_add = FALSE;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	748
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	749 if (!director_args_parse_ip_port(conn, args, &ip, &port))
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	750 return FALSE;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	751
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	752 host = director_host_lookup(conn->dir, &ip, port);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	753 if (host != NULL) {
14493 1856e9085f94 director: Forward DIRECTOR commands to other connected directors. Timo Sirainen <tss@iki.fi> parents: 14488 diff changeset	754 if (host == conn->dir->self_host) {
1856e9085f94 director: Forward DIRECTOR commands to other connected directors. Timo Sirainen <tss@iki.fi> parents: 14488 diff changeset	755 /* ignore updates to ourself */
1856e9085f94 director: Forward DIRECTOR commands to other connected directors. Timo Sirainen <tss@iki.fi> parents: 14488 diff changeset	756 return TRUE;
1856e9085f94 director: Forward DIRECTOR commands to other connected directors. Timo Sirainen <tss@iki.fi> parents: 14488 diff changeset	757 }
14571 42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	758 if (host->removed) {
42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	759 /* ignore re-adds of removed directors */
42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	760 return TRUE;
42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	761 }
14493 1856e9085f94 director: Forward DIRECTOR commands to other connected directors. Timo Sirainen <tss@iki.fi> parents: 14488 diff changeset	762
14432 366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	763 /* already have this. just reset its last_network_failure
366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	764 timestamp, since it might be up now. */
366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	765 host->last_network_failure = 0;
16789 5d43c926eb97 director: Make sure director restart notifications go to everyone in the ring. Timo Sirainen <tss@iki.fi> parents: 16788 diff changeset	766 /* it also may have been restarted, reset its state */
5d43c926eb97 director: Make sure director restart notifications go to everyone in the ring. Timo Sirainen <tss@iki.fi> parents: 16788 diff changeset	767 director_host_restarted(host);
14493 1856e9085f94 director: Forward DIRECTOR commands to other connected directors. Timo Sirainen <tss@iki.fi> parents: 14488 diff changeset	768 } else {
1856e9085f94 director: Forward DIRECTOR commands to other connected directors. Timo Sirainen <tss@iki.fi> parents: 14488 diff changeset	769 /* save the director and forward it */
14571 42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	770 host = director_host_add(conn->dir, &ip, port);
22562 3af1ba6b5248 director: Log info line whenever a director is added/removed from ring Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22446 diff changeset	771 log_add = TRUE;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	772 }
16789 5d43c926eb97 director: Make sure director restart notifications go to everyone in the ring. Timo Sirainen <tss@iki.fi> parents: 16788 diff changeset	773 /* just forward this to the entire ring until it reaches back to
5d43c926eb97 director: Make sure director restart notifications go to everyone in the ring. Timo Sirainen <tss@iki.fi> parents: 16788 diff changeset	774 itself. some hosts may see this twice, but that's the only way to
5d43c926eb97 director: Make sure director restart notifications go to everyone in the ring. Timo Sirainen <tss@iki.fi> parents: 16788 diff changeset	775 guarantee that it gets seen by everyone. reseting the host multiple
5d43c926eb97 director: Make sure director restart notifications go to everyone in the ring. Timo Sirainen <tss@iki.fi> parents: 16788 diff changeset	776 times may cause us to handle its commands multiple times, but the
18665 b7aed6290e7e director: Don't send DIRECTOR command infinitely in loop if that director got disconnected. Timo Sirainen <tss@iki.fi> parents: 18664 diff changeset	777 commands can handle that. however, we need to also handle a
b7aed6290e7e director: Don't send DIRECTOR command infinitely in loop if that director got disconnected. Timo Sirainen <tss@iki.fi> parents: 18664 diff changeset	778 situation where the added director never comes back - we don't want
b7aed6290e7e director: Don't send DIRECTOR command infinitely in loop if that director got disconnected. Timo Sirainen <tss@iki.fi> parents: 18664 diff changeset	779 to send the director information in a loop forever. */
b7aed6290e7e director: Don't send DIRECTOR command infinitely in loop if that director got disconnected. Timo Sirainen <tss@iki.fi> parents: 18664 diff changeset	780 if (conn->dir->right != NULL &&
b7aed6290e7e director: Don't send DIRECTOR command infinitely in loop if that director got disconnected. Timo Sirainen <tss@iki.fi> parents: 18664 diff changeset	781 director_host_cmp_to_self(host, conn->dir->right->host,
b7aed6290e7e director: Don't send DIRECTOR command infinitely in loop if that director got disconnected. Timo Sirainen <tss@iki.fi> parents: 18664 diff changeset	782 conn->dir->self_host) > 0) {
b7aed6290e7e director: Don't send DIRECTOR command infinitely in loop if that director got disconnected. Timo Sirainen <tss@iki.fi> parents: 18664 diff changeset	783 dir_debug("Received DIRECTOR update for a host where we should be connected to. "
b7aed6290e7e director: Don't send DIRECTOR command infinitely in loop if that director got disconnected. Timo Sirainen <tss@iki.fi> parents: 18664 diff changeset	784 "Not forwarding it since it's probably crashed.");
b7aed6290e7e director: Don't send DIRECTOR command infinitely in loop if that director got disconnected. Timo Sirainen <tss@iki.fi> parents: 18664 diff changeset	785 } else {
b7aed6290e7e director: Don't send DIRECTOR command infinitely in loop if that director got disconnected. Timo Sirainen <tss@iki.fi> parents: 18664 diff changeset	786 director_notify_ring_added(host,
22562 3af1ba6b5248 director: Log info line whenever a director is added/removed from ring Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22446 diff changeset	787 director_connection_get_host(conn), log_add);
18665 b7aed6290e7e director: Don't send DIRECTOR command infinitely in loop if that director got disconnected. Timo Sirainen <tss@iki.fi> parents: 18664 diff changeset	788 }
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	789 return TRUE;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	790 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	791
14571 42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	792 static bool director_cmd_director_remove(struct director_connection *conn,
42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	793 const char const args)
42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	794 {
42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	795 struct director_host *host;
42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	796 struct ip_addr ip;
19035 aabfe48db1cf Changed type of internet port values to in_port_t everywhere. Stephan Bosch <stephan@rename-it.nl> parents: 18858 diff changeset	797 in_port_t port;
14571 42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	798
42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	799 if (!director_args_parse_ip_port(conn, args, &ip, &port))
42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	800 return FALSE;
42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	801
42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	802 host = director_host_lookup(conn->dir, &ip, port);
42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	803 if (host != NULL && !host->removed)
42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	804 director_ring_remove(host, director_connection_get_host(conn));
42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	805 return TRUE;
42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	806 }
42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	807
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	808 static bool
11350 5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	809 director_cmd_host_hand_start(struct director_connection *conn,
5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	810 const char const args)
5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	811 {
5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	812 const ARRAY_TYPE(mail_host) *hosts;
5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	813 struct mail_host const hostp;
5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	814 unsigned int remote_ring_completed;
5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	815
14407 d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	816 if (args[0] == NULL \|\|
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	817 str_to_uint(args[0], &remote_ring_completed) < 0) {
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	818 director_cmd_error(conn, "Invalid parameters");
11350 5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	819 return FALSE;
5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	820 }
5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	821
5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	822 if (remote_ring_completed && !conn->dir->ring_handshaked) {
5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	823 /* clear everything we have and use only what remote sends us */
20981 699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	824 dir_debug("%s: We're joining a ring - replace all hosts",
699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	825 conn->name);
11352 19336bddada2 director: Code cleanup - keep mail hosts in a struct rather than in static variables. Timo Sirainen <tss@iki.fi> parents: 11350 diff changeset	826 hosts = mail_hosts_get(conn->dir->mail_hosts);
11350 5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	827 while (array_count(hosts) > 0) {
5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	828 hostp = array_idx(hosts, 0);
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	829 director_remove_host(conn->dir, NULL, NULL, *hostp);
11350 5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	830 }
5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	831 } else if (!remote_ring_completed && conn->dir->ring_handshaked) {
5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	832 /* ignore whatever remote sends */
20981 699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	833 dir_debug("%s: Remote is joining our ring - "
699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	834 "ignore all remote HOSTs", conn->name);
11350 5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	835 conn->ignore_host_events = TRUE;
20981 699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	836 } else {
699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	837 dir_debug("%s: Merge rings' hosts", conn->name);
11350 5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	838 }
11585 f0fb8151c6b4 director: A lot of fixes. Timo Sirainen <tss@iki.fi> parents: 11581 diff changeset	839 conn->handshake_sending_hosts = TRUE;
11350 5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	840 return TRUE;
5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	841 }
5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	842
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	843 static int
20981 699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	844 director_cmd_is_seen_full(struct director_connection *conn,
699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	845 const char const _args, unsigned int seq_r,
699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	846 struct director_host **host_r)
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	847 {
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	848 const char const args = *_args;
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	849 struct ip_addr ip;
19035 aabfe48db1cf Changed type of internet port values to in_port_t everywhere. Stephan Bosch <stephan@rename-it.nl> parents: 18858 diff changeset	850 in_port_t port;
aabfe48db1cf Changed type of internet port values to in_port_t everywhere. Stephan Bosch <stephan@rename-it.nl> parents: 18858 diff changeset	851 unsigned int seq;
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	852 struct director_host *host;
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	853
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	854 if (str_array_length(args) < 3 \|\|
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	855 net_addr2ip(args[0], &ip) < 0 \|\|
19035 aabfe48db1cf Changed type of internet port values to in_port_t everywhere. Stephan Bosch <stephan@rename-it.nl> parents: 18858 diff changeset	856 net_str2port(args[1], &port) < 0 \|\|
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	857 str_to_uint(args[2], &seq) < 0) {
14407 d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	858 director_cmd_error(conn, "Invalid parameters");
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	859 return -1;
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	860 }
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	861 *_args = args + 3;
20981 699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	862 *seq_r = seq;
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	863
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	864 host = director_host_lookup(conn->dir, &ip, port);
14571 42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	865 if (host == NULL \|\| host->removed) {
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	866 /* director is already gone, but we can't be sure if this
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	867 command was sent everywhere. re-send it as if it was from
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	868 ourself. */
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	869 *host_r = NULL;
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	870 } else {
15350 bb095315d025 Make static analyzer happier. Timo Sirainen <tss@iki.fi> parents: 15337 diff changeset	871 *host_r = host;
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	872 if (seq <= host->last_seq) {
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	873 /* already seen this */
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	874 return 1;
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	875 }
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	876 host->last_seq = seq;
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	877 }
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	878 return 0;
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	879 }
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	880
20981 699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	881 static int
699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	882 director_cmd_is_seen(struct director_connection *conn,
699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	883 const char const *_args,
699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	884 struct director_host **host_r)
699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	885 {
699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	886 unsigned int seq;
699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	887
699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	888 return director_cmd_is_seen_full(conn, _args, &seq, host_r);
699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	889 }
699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	890
11350 5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	891 static bool
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	892 director_cmd_user_weak(struct director_connection *conn,
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	893 const char const args)
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	894 {
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	895 struct director_host *dir_host;
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	896 struct ip_addr ip;
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	897 unsigned int username_hash;
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	898 struct mail_host *host;
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	899 struct user *user;
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	900 struct director_host *src_host = conn->host;
20978 7a4fb29a4e52 director: If user host conflict is detected, make sure new host is sent back. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20974 diff changeset	901 bool weak = TRUE, weak_forward = FALSE, forced;
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	902 int ret;
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	903
15320 e4c337f38ed6 director: Fixed previous broken change for handling USER-WEAK commands. Timo Sirainen <tss@iki.fi> parents: 15132 diff changeset	904 /* note that unlike other commands we don't want to just ignore
e4c337f38ed6 director: Fixed previous broken change for handling USER-WEAK commands. Timo Sirainen <tss@iki.fi> parents: 15132 diff changeset	905 duplicate commands */
e4c337f38ed6 director: Fixed previous broken change for handling USER-WEAK commands. Timo Sirainen <tss@iki.fi> parents: 15132 diff changeset	906 if ((ret = director_cmd_is_seen(conn, &args, &dir_host)) < 0)
15324 1dcf0090648e director: Minor code cleanup Timo Sirainen <tss@iki.fi> parents: 15320 diff changeset	907 return FALSE;
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	908
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	909 if (str_array_length(args) != 2 \|\|
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	910 str_to_uint(args[0], &username_hash) < 0 \|\|
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	911 net_addr2ip(args[1], &ip) < 0) {
14407 d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	912 director_cmd_error(conn, "Invalid parameters");
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	913 return FALSE;
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	914 }
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	915
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	916 host = mail_host_lookup(conn->dir->mail_hosts, &ip);
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	917 if (host == NULL) {
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	918 /* we probably just removed this host. */
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	919 return TRUE;
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	920 }
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	921
19953 a502d38e7b70 director: Fixed user weakness getting stuck if multiple directors set user weak simultaneously Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19608 diff changeset	922 if (ret == 0) {
a502d38e7b70 director: Fixed user weakness getting stuck if multiple directors set user weak simultaneously Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19608 diff changeset	923 /* First time we're seeing this - forward it to others also.
a502d38e7b70 director: Fixed user weakness getting stuck if multiple directors set user weak simultaneously Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19608 diff changeset	924 We'll want to do it even if the user was already marked as
a502d38e7b70 director: Fixed user weakness getting stuck if multiple directors set user weak simultaneously Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19608 diff changeset	925 weak, because otherwise if two directors mark the user weak
a502d38e7b70 director: Fixed user weakness getting stuck if multiple directors set user weak simultaneously Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19608 diff changeset	926 at the same time both the USER-WEAK notifications reach
a502d38e7b70 director: Fixed user weakness getting stuck if multiple directors set user weak simultaneously Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19608 diff changeset	927 only half the directors until they collide and neither one
a502d38e7b70 director: Fixed user weakness getting stuck if multiple directors set user weak simultaneously Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19608 diff changeset	928 finishes going through the whole ring marking the user
a502d38e7b70 director: Fixed user weakness getting stuck if multiple directors set user weak simultaneously Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19608 diff changeset	929 non-weak. */
a502d38e7b70 director: Fixed user weakness getting stuck if multiple directors set user weak simultaneously Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19608 diff changeset	930 weak_forward = TRUE;
a502d38e7b70 director: Fixed user weakness getting stuck if multiple directors set user weak simultaneously Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19608 diff changeset	931 } else if (dir_host == conn->dir->self_host) {
16619 9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	932 /* We originated this USER-WEAK request. The entire ring has seen
9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	933 it and there weren't any conflicts. Make the user non-weak. */
9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	934 dir_debug("user refresh: %u Our USER-WEAK seen by the entire ring",
9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	935 username_hash);
9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	936 src_host = conn->dir->self_host;
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	937 weak = FALSE;
16619 9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	938 } else {
9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	939 /* The original USER-WEAK sender will send a new non-weak USER
9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	940 update saying what really happened. We'll still need to forward
9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	941 this around the ring to the origin so it also knows it has
9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	942 travelled through the ring. */
9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	943 dir_debug("user refresh: %u Remote USER-WEAK from %s seen by the entire ring, ignoring",
9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	944 username_hash, net_ip2addr(&dir_host->ip));
9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	945 weak_forward = TRUE;
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	946 }
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	947
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	948 if (director_user_refresh(conn, username_hash,
20978 7a4fb29a4e52 director: If user host conflict is detected, make sure new host is sent back. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20974 diff changeset	949 host, ioloop_time, weak, &forced, &user) \|\|
16619 9b8b5ce6ecb0 director: Fixes to handling users near expiration. Timo Sirainen <tss@iki.fi> parents: 16618 diff changeset	950 weak_forward) {
20978 7a4fb29a4e52 director: If user host conflict is detected, make sure new host is sent back. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20974 diff changeset	951 if (forced)
7a4fb29a4e52 director: If user host conflict is detected, make sure new host is sent back. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20974 diff changeset	952 src_host = conn->dir->self_host;
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	953 if (!user->weak)
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	954 director_update_user(conn->dir, src_host, user);
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	955 else {
17259 6269063f8408 director: Fixed handling weak users when there were exactly 2 director servers in the ring. Timo Sirainen <tss@iki.fi> parents: 17130 diff changeset	956 director_update_user_weak(conn->dir, src_host, conn,
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	957 dir_host, user);
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	958 }
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	959 }
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	960 return TRUE;
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	961 }
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	962
14629 c93ca5e46a8a Marked functions parameters that are allowed to be NULL. Some APIs were also changed. Timo Sirainen <tss@iki.fi> parents: 14575 diff changeset	963 static bool ATTR_NULL(3)
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	964 director_cmd_host_int(struct director_connection conn, const char const *args,
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	965 struct director_host *dir_host)
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	966 {
19287 0f9d4f1a083d director: Don't become desynced if two directors change the same backend in incompatible ways. Timo Sirainen <tss@iki.fi> parents: 19036 diff changeset	967 struct director_host *src_host = conn->host;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	968 struct mail_host *host;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	969 struct ip_addr ip;
19408 7e47f561ad49 director: Code cleanup - access host->tag via mail_host_get_tag() Timo Sirainen <tss@iki.fi> parents: 19407 diff changeset	970 const char tag = "", host_tag, *hostname = NULL;
19309 8e9cada0c8fc director: Small code cleanup - make it easier to add parameters to HOST Timo Sirainen <tss@iki.fi> parents: 19294 diff changeset	971 unsigned int arg_count, vhost_count;
18729 0ee3e734249a director: Added "up" vs "down" states and doveadm director up/down commands. Timo Sirainen <tss@iki.fi> parents: 18708 diff changeset	972 bool update, down = FALSE;
0ee3e734249a director: Added "up" vs "down" states and doveadm director up/down commands. Timo Sirainen <tss@iki.fi> parents: 18708 diff changeset	973 time_t last_updown_change = 0;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	974
19309 8e9cada0c8fc director: Small code cleanup - make it easier to add parameters to HOST Timo Sirainen <tss@iki.fi> parents: 19294 diff changeset	975 arg_count = str_array_length(args);
8e9cada0c8fc director: Small code cleanup - make it easier to add parameters to HOST Timo Sirainen <tss@iki.fi> parents: 19294 diff changeset	976 if (arg_count < 2 \|\|
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	977 net_addr2ip(args[0], &ip) < 0 \|\|
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	978 str_to_uint(args[1], &vhost_count) < 0) {
14407 d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	979 director_cmd_error(conn, "Invalid parameters");
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	980 return FALSE;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	981 }
19309 8e9cada0c8fc director: Small code cleanup - make it easier to add parameters to HOST Timo Sirainen <tss@iki.fi> parents: 19294 diff changeset	982 if (arg_count >= 3)
18067 a7e830b9b967 director: Added support for backend cluster "tags". Timo Sirainen <tss@iki.fi> parents: 18065 diff changeset	983 tag = args[2];
19309 8e9cada0c8fc director: Small code cleanup - make it easier to add parameters to HOST Timo Sirainen <tss@iki.fi> parents: 19294 diff changeset	984 if (arg_count >= 4) {
8e9cada0c8fc director: Small code cleanup - make it easier to add parameters to HOST Timo Sirainen <tss@iki.fi> parents: 19294 diff changeset	985 if ((args[3][0] != 'D' && args[3][0] != 'U') \|\|
8e9cada0c8fc director: Small code cleanup - make it easier to add parameters to HOST Timo Sirainen <tss@iki.fi> parents: 19294 diff changeset	986 str_to_time(args[3]+1, &last_updown_change) < 0) {
8e9cada0c8fc director: Small code cleanup - make it easier to add parameters to HOST Timo Sirainen <tss@iki.fi> parents: 19294 diff changeset	987 director_cmd_error(conn, "Invalid updown parameters");
8e9cada0c8fc director: Small code cleanup - make it easier to add parameters to HOST Timo Sirainen <tss@iki.fi> parents: 19294 diff changeset	988 return FALSE;
18729 0ee3e734249a director: Added "up" vs "down" states and doveadm director up/down commands. Timo Sirainen <tss@iki.fi> parents: 18708 diff changeset	989 }
19309 8e9cada0c8fc director: Small code cleanup - make it easier to add parameters to HOST Timo Sirainen <tss@iki.fi> parents: 19294 diff changeset	990 down = args[3][0] == 'D';
18729 0ee3e734249a director: Added "up" vs "down" states and doveadm director up/down commands. Timo Sirainen <tss@iki.fi> parents: 18708 diff changeset	991 }
19310 7f718c840aff director: Remember backends' hostnames and send them in login reply. Timo Sirainen <tss@iki.fi> parents: 19309 diff changeset	992 if (arg_count >= 5)
7f718c840aff director: Remember backends' hostnames and send them in login reply. Timo Sirainen <tss@iki.fi> parents: 19309 diff changeset	993 hostname = args[4];
11350 5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	994 if (conn->ignore_host_events) {
5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	995 /* remote is sending hosts in a handshake, but it doesn't have
5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	996 a completed ring and we do. */
11585 f0fb8151c6b4 director: A lot of fixes. Timo Sirainen <tss@iki.fi> parents: 11581 diff changeset	997 i_assert(conn->handshake_sending_hosts);
11350 5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	998 return TRUE;
5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	999 }
19411 0e05efd14b39 director: Fixed backend selection when multiple tags were used. Timo Sirainen <tss@iki.fi> parents: 19408 diff changeset	1000 if (tag[0] != '\0' && conn->minor_version < DIRECTOR_VERSION_TAGS_V2) {
0e05efd14b39 director: Fixed backend selection when multiple tags were used. Timo Sirainen <tss@iki.fi> parents: 19408 diff changeset	1001 director_cmd_error(conn, "Received a host tag from older director version with incompatible tagging support");
0e05efd14b39 director: Fixed backend selection when multiple tags were used. Timo Sirainen <tss@iki.fi> parents: 19408 diff changeset	1002 return FALSE;
0e05efd14b39 director: Fixed backend selection when multiple tags were used. Timo Sirainen <tss@iki.fi> parents: 19408 diff changeset	1003 }
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1004
11352 19336bddada2 director: Code cleanup - keep mail hosts in a struct rather than in static variables. Timo Sirainen <tss@iki.fi> parents: 11350 diff changeset	1005 host = mail_host_lookup(conn->dir->mail_hosts, &ip);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1006 if (host == NULL) {
19310 7f718c840aff director: Remember backends' hostnames and send them in login reply. Timo Sirainen <tss@iki.fi> parents: 19309 diff changeset	1007 host = mail_host_add_hostname(conn->dir->mail_hosts,
7f718c840aff director: Remember backends' hostnames and send them in login reply. Timo Sirainen <tss@iki.fi> parents: 19309 diff changeset	1008 hostname, &ip, tag);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1009 update = TRUE;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1010 } else {
18729 0ee3e734249a director: Added "up" vs "down" states and doveadm director up/down commands. Timo Sirainen <tss@iki.fi> parents: 18708 diff changeset	1011 update = host->vhost_count != vhost_count \|\|
19506 e6aa0aa3d599 director: Don't trigger a ring resync if only last_updown_change has changed. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19411 diff changeset	1012 host->down != down;
19292 bae8efd8b5b3 director: Use mail_hosts_hash() to improve debug log messages. Timo Sirainen <tss@iki.fi> parents: 19289 diff changeset	1013
19408 7e47f561ad49 director: Code cleanup - access host->tag via mail_host_get_tag() Timo Sirainen <tss@iki.fi> parents: 19407 diff changeset	1014 host_tag = mail_host_get_tag(host);
7e47f561ad49 director: Code cleanup - access host->tag via mail_host_get_tag() Timo Sirainen <tss@iki.fi> parents: 19407 diff changeset	1015 if (strcmp(tag, host_tag) != 0) {
18067 a7e830b9b967 director: Added support for backend cluster "tags". Timo Sirainen <tss@iki.fi> parents: 18065 diff changeset	1016 i_error("director(%s): Host %s changed tag from '%s' to '%s'",
a7e830b9b967 director: Added support for backend cluster "tags". Timo Sirainen <tss@iki.fi> parents: 18065 diff changeset	1017 conn->name, net_ip2addr(&host->ip),
19408 7e47f561ad49 director: Code cleanup - access host->tag via mail_host_get_tag() Timo Sirainen <tss@iki.fi> parents: 19407 diff changeset	1018 host_tag, tag);
18067 a7e830b9b967 director: Added support for backend cluster "tags". Timo Sirainen <tss@iki.fi> parents: 18065 diff changeset	1019 mail_host_set_tag(host, tag);
a7e830b9b967 director: Added support for backend cluster "tags". Timo Sirainen <tss@iki.fi> parents: 18065 diff changeset	1020 update = TRUE;
a7e830b9b967 director: Added support for backend cluster "tags". Timo Sirainen <tss@iki.fi> parents: 18065 diff changeset	1021 }
19287 0f9d4f1a083d director: Don't become desynced if two directors change the same backend in incompatible ways. Timo Sirainen <tss@iki.fi> parents: 19036 diff changeset	1022 if (update && host->desynced) {
19608 01e33753b08e director: "Host is being updated before previous update had finished" logs now details. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19552 diff changeset	1023 string_t *str = t_str_new(128);
01e33753b08e director: "Host is being updated before previous update had finished" logs now details. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19552 diff changeset	1024
01e33753b08e director: "Host is being updated before previous update had finished" logs now details. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19552 diff changeset	1025 str_printfa(str, "director(%s): Host %s is being updated before previous update had finished (",
01e33753b08e director: "Host is being updated before previous update had finished" logs now details. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19552 diff changeset	1026 conn->name, net_ip2addr(&host->ip));
20286 4d926d1e9164 director: Fixed ignoring an obsolete up/down change while host is desynced. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20264 diff changeset	1027 if (host->down != down &&
4d926d1e9164 director: Fixed ignoring an obsolete up/down change while host is desynced. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20264 diff changeset	1028 host->last_updown_change > last_updown_change) {
4d926d1e9164 director: Fixed ignoring an obsolete up/down change while host is desynced. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20264 diff changeset	1029 /* our host has a newer change. preserve it. */
4d926d1e9164 director: Fixed ignoring an obsolete up/down change while host is desynced. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20264 diff changeset	1030 down = host->down;
4d926d1e9164 director: Fixed ignoring an obsolete up/down change while host is desynced. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20264 diff changeset	1031 }
19608 01e33753b08e director: "Host is being updated before previous update had finished" logs now details. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19552 diff changeset	1032 if (host->down != down) {
01e33753b08e director: "Host is being updated before previous update had finished" logs now details. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19552 diff changeset	1033 if (host->down)
01e33753b08e director: "Host is being updated before previous update had finished" logs now details. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19552 diff changeset	1034 str_append(str, "down -> up");
01e33753b08e director: "Host is being updated before previous update had finished" logs now details. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19552 diff changeset	1035 else
01e33753b08e director: "Host is being updated before previous update had finished" logs now details. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19552 diff changeset	1036 str_append(str, "up -> down");
01e33753b08e director: "Host is being updated before previous update had finished" logs now details. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19552 diff changeset	1037 }
01e33753b08e director: "Host is being updated before previous update had finished" logs now details. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19552 diff changeset	1038 if (host->vhost_count != vhost_count) {
01e33753b08e director: "Host is being updated before previous update had finished" logs now details. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19552 diff changeset	1039 if (host->down != down)
01e33753b08e director: "Host is being updated before previous update had finished" logs now details. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19552 diff changeset	1040 str_append(str, ", ");
01e33753b08e director: "Host is being updated before previous update had finished" logs now details. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19552 diff changeset	1041 str_printfa(str, "vhosts %u -> %u",
01e33753b08e director: "Host is being updated before previous update had finished" logs now details. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19552 diff changeset	1042 host->vhost_count, vhost_count);
01e33753b08e director: "Host is being updated before previous update had finished" logs now details. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19552 diff changeset	1043 }
01e33753b08e director: "Host is being updated before previous update had finished" logs now details. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19552 diff changeset	1044 str_append(str, ") - ");
01e33753b08e director: "Host is being updated before previous update had finished" logs now details. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19552 diff changeset	1045
19287 0f9d4f1a083d director: Don't become desynced if two directors change the same backend in incompatible ways. Timo Sirainen <tss@iki.fi> parents: 19036 diff changeset	1046 vhost_count = I_MIN(vhost_count, host->vhost_count);
0f9d4f1a083d director: Don't become desynced if two directors change the same backend in incompatible ways. Timo Sirainen <tss@iki.fi> parents: 19036 diff changeset	1047 last_updown_change = I_MAX(last_updown_change,
0f9d4f1a083d director: Don't become desynced if two directors change the same backend in incompatible ways. Timo Sirainen <tss@iki.fi> parents: 19036 diff changeset	1048 host->last_updown_change);
19608 01e33753b08e director: "Host is being updated before previous update had finished" logs now details. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19552 diff changeset	1049 str_printfa(str, "setting to state=%s vhosts=%u",
01e33753b08e director: "Host is being updated before previous update had finished" logs now details. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19552 diff changeset	1050 down ? "down" : "up", vhost_count);
01e33753b08e director: "Host is being updated before previous update had finished" logs now details. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19552 diff changeset	1051 i_warning("%s", str_c(str));
19287 0f9d4f1a083d director: Don't become desynced if two directors change the same backend in incompatible ways. Timo Sirainen <tss@iki.fi> parents: 19036 diff changeset	1052 /* make the change appear to come from us, so it
0f9d4f1a083d director: Don't become desynced if two directors change the same backend in incompatible ways. Timo Sirainen <tss@iki.fi> parents: 19036 diff changeset	1053 reaches the full ring */
0f9d4f1a083d director: Don't become desynced if two directors change the same backend in incompatible ways. Timo Sirainen <tss@iki.fi> parents: 19036 diff changeset	1054 dir_host = NULL;
0f9d4f1a083d director: Don't become desynced if two directors change the same backend in incompatible ways. Timo Sirainen <tss@iki.fi> parents: 19036 diff changeset	1055 src_host = conn->dir->self_host;
0f9d4f1a083d director: Don't become desynced if two directors change the same backend in incompatible ways. Timo Sirainen <tss@iki.fi> parents: 19036 diff changeset	1056 }
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1057 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1058
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1059 if (update) {
21842 86e52ff70044 director: Log vhost count changes and HOST-UP/DOWN Martti Rannanjärvi <martti.rannanjarvi@dovecot.fi> parents: 21390 diff changeset	1060 const char *log_prefix = t_strdup_printf("director(%s): ",
86e52ff70044 director: Log vhost count changes and HOST-UP/DOWN Martti Rannanjärvi <martti.rannanjarvi@dovecot.fi> parents: 21390 diff changeset	1061 conn->name);
86e52ff70044 director: Log vhost count changes and HOST-UP/DOWN Martti Rannanjärvi <martti.rannanjarvi@dovecot.fi> parents: 21390 diff changeset	1062 mail_host_set_down(host, down, last_updown_change, log_prefix);
86e52ff70044 director: Log vhost count changes and HOST-UP/DOWN Martti Rannanjärvi <martti.rannanjarvi@dovecot.fi> parents: 21390 diff changeset	1063 mail_host_set_vhost_count(host, vhost_count, log_prefix);
19287 0f9d4f1a083d director: Don't become desynced if two directors change the same backend in incompatible ways. Timo Sirainen <tss@iki.fi> parents: 19036 diff changeset	1064 director_update_host(conn->dir, src_host, dir_host, host);
19292 bae8efd8b5b3 director: Use mail_hosts_hash() to improve debug log messages. Timo Sirainen <tss@iki.fi> parents: 19289 diff changeset	1065 } else {
bae8efd8b5b3 director: Use mail_hosts_hash() to improve debug log messages. Timo Sirainen <tss@iki.fi> parents: 19289 diff changeset	1066 dir_debug("Ignoring host %s update vhost_count=%u "
bae8efd8b5b3 director: Use mail_hosts_hash() to improve debug log messages. Timo Sirainen <tss@iki.fi> parents: 19289 diff changeset	1067 "down=%d last_updown_change=%ld (hosts_hash=%u)",
bae8efd8b5b3 director: Use mail_hosts_hash() to improve debug log messages. Timo Sirainen <tss@iki.fi> parents: 19289 diff changeset	1068 net_ip2addr(&ip), vhost_count, down,
bae8efd8b5b3 director: Use mail_hosts_hash() to improve debug log messages. Timo Sirainen <tss@iki.fi> parents: 19289 diff changeset	1069 (long)last_updown_change,
bae8efd8b5b3 director: Use mail_hosts_hash() to improve debug log messages. Timo Sirainen <tss@iki.fi> parents: 19289 diff changeset	1070 mail_hosts_hash(conn->dir->mail_hosts));
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1071 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1072 return TRUE;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1073 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1074
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1075 static bool
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1076 director_cmd_host_handshake(struct director_connection *conn,
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1077 const char const args)
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1078 {
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1079 return director_cmd_host_int(conn, args, NULL);
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1080 }
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1081
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1082 static bool
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1083 director_cmd_host(struct director_connection conn, const char const *args)
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1084 {
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1085 struct director_host *dir_host;
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1086 int ret;
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1087
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1088 if ((ret = director_cmd_is_seen(conn, &args, &dir_host)) != 0)
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1089 return ret > 0;
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1090 return director_cmd_host_int(conn, args, dir_host);
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1091 }
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1092
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1093 static bool
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1094 director_cmd_host_remove(struct director_connection *conn,
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1095 const char const args)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1096 {
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1097 struct director_host *dir_host;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1098 struct mail_host *host;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1099 struct ip_addr ip;
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1100 int ret;
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1101
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1102 if ((ret = director_cmd_is_seen(conn, &args, &dir_host)) != 0)
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1103 return ret > 0;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1104
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1105 if (str_array_length(args) != 1 \|\|
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1106 net_addr2ip(args[0], &ip) < 0) {
14407 d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1107 director_cmd_error(conn, "Invalid parameters");
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1108 return FALSE;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1109 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1110
11352 19336bddada2 director: Code cleanup - keep mail hosts in a struct rather than in static variables. Timo Sirainen <tss@iki.fi> parents: 11350 diff changeset	1111 host = mail_host_lookup(conn->dir->mail_hosts, &ip);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1112 if (host != NULL)
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1113 director_remove_host(conn->dir, conn->host, dir_host, host);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1114 return TRUE;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1115 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1116
11355 ef1de95396d4 Added doveadm director flush command for dropping user associations from memory. Timo Sirainen <tss@iki.fi> parents: 11352 diff changeset	1117 static bool
ef1de95396d4 Added doveadm director flush command for dropping user associations from memory. Timo Sirainen <tss@iki.fi> parents: 11352 diff changeset	1118 director_cmd_host_flush(struct director_connection *conn,
ef1de95396d4 Added doveadm director flush command for dropping user associations from memory. Timo Sirainen <tss@iki.fi> parents: 11352 diff changeset	1119 const char const args)
ef1de95396d4 Added doveadm director flush command for dropping user associations from memory. Timo Sirainen <tss@iki.fi> parents: 11352 diff changeset	1120 {
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1121 struct director_host *dir_host;
11355 ef1de95396d4 Added doveadm director flush command for dropping user associations from memory. Timo Sirainen <tss@iki.fi> parents: 11352 diff changeset	1122 struct mail_host *host;
ef1de95396d4 Added doveadm director flush command for dropping user associations from memory. Timo Sirainen <tss@iki.fi> parents: 11352 diff changeset	1123 struct ip_addr ip;
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1124 int ret;
11355 ef1de95396d4 Added doveadm director flush command for dropping user associations from memory. Timo Sirainen <tss@iki.fi> parents: 11352 diff changeset	1125
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1126 if ((ret = director_cmd_is_seen(conn, &args, &dir_host)) != 0)
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1127 return ret > 0;
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1128
11816 9e41df232dd6 director: Fixed handling HOST-FLUSH commands. Timo Sirainen <tss@iki.fi> parents: 11758 diff changeset	1129 if (str_array_length(args) != 1 \|\|
9e41df232dd6 director: Fixed handling HOST-FLUSH commands. Timo Sirainen <tss@iki.fi> parents: 11758 diff changeset	1130 net_addr2ip(args[0], &ip) < 0) {
14407 d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1131 director_cmd_error(conn, "Invalid parameters");
11355 ef1de95396d4 Added doveadm director flush command for dropping user associations from memory. Timo Sirainen <tss@iki.fi> parents: 11352 diff changeset	1132 return FALSE;
ef1de95396d4 Added doveadm director flush command for dropping user associations from memory. Timo Sirainen <tss@iki.fi> parents: 11352 diff changeset	1133 }
ef1de95396d4 Added doveadm director flush command for dropping user associations from memory. Timo Sirainen <tss@iki.fi> parents: 11352 diff changeset	1134
ef1de95396d4 Added doveadm director flush command for dropping user associations from memory. Timo Sirainen <tss@iki.fi> parents: 11352 diff changeset	1135 host = mail_host_lookup(conn->dir->mail_hosts, &ip);
ef1de95396d4 Added doveadm director flush command for dropping user associations from memory. Timo Sirainen <tss@iki.fi> parents: 11352 diff changeset	1136 if (host != NULL)
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1137 director_flush_host(conn->dir, conn->host, dir_host, host);
11355 ef1de95396d4 Added doveadm director flush command for dropping user associations from memory. Timo Sirainen <tss@iki.fi> parents: 11352 diff changeset	1138 return TRUE;
ef1de95396d4 Added doveadm director flush command for dropping user associations from memory. Timo Sirainen <tss@iki.fi> parents: 11352 diff changeset	1139 }
ef1de95396d4 Added doveadm director flush command for dropping user associations from memory. Timo Sirainen <tss@iki.fi> parents: 11352 diff changeset	1140
13045 79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1141 static bool
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1142 director_cmd_user_move(struct director_connection *conn,
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1143 const char const args)
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1144 {
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1145 struct director_host *dir_host;
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1146 struct mail_host *host;
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1147 struct ip_addr ip;
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1148 unsigned int username_hash;
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1149 int ret;
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1150
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1151 if ((ret = director_cmd_is_seen(conn, &args, &dir_host)) != 0)
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1152 return ret > 0;
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1153
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1154 if (str_array_length(args) != 2 \|\|
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1155 str_to_uint(args[0], &username_hash) < 0 \|\|
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1156 net_addr2ip(args[1], &ip) < 0) {
14407 d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1157 director_cmd_error(conn, "Invalid parameters");
13045 79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1158 return FALSE;
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1159 }
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1160
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1161 host = mail_host_lookup(conn->dir->mail_hosts, &ip);
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1162 if (host != NULL) {
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1163 director_move_user(conn->dir, conn->host, dir_host,
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1164 username_hash, host);
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1165 }
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1166 return TRUE;
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1167 }
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1168
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1169 static bool
17418 64808a9703db doveadm director kick command added. Timo Sirainen <tss@iki.fi> parents: 17259 diff changeset	1170 director_cmd_user_kick(struct director_connection *conn,
64808a9703db doveadm director kick command added. Timo Sirainen <tss@iki.fi> parents: 17259 diff changeset	1171 const char const args)
64808a9703db doveadm director kick command added. Timo Sirainen <tss@iki.fi> parents: 17259 diff changeset	1172 {
64808a9703db doveadm director kick command added. Timo Sirainen <tss@iki.fi> parents: 17259 diff changeset	1173 struct director_host *dir_host;
64808a9703db doveadm director kick command added. Timo Sirainen <tss@iki.fi> parents: 17259 diff changeset	1174 int ret;
64808a9703db doveadm director kick command added. Timo Sirainen <tss@iki.fi> parents: 17259 diff changeset	1175
64808a9703db doveadm director kick command added. Timo Sirainen <tss@iki.fi> parents: 17259 diff changeset	1176 if ((ret = director_cmd_is_seen(conn, &args, &dir_host)) != 0)
64808a9703db doveadm director kick command added. Timo Sirainen <tss@iki.fi> parents: 17259 diff changeset	1177 return ret > 0;
64808a9703db doveadm director kick command added. Timo Sirainen <tss@iki.fi> parents: 17259 diff changeset	1178
64808a9703db doveadm director kick command added. Timo Sirainen <tss@iki.fi> parents: 17259 diff changeset	1179 if (str_array_length(args) != 1) {
64808a9703db doveadm director kick command added. Timo Sirainen <tss@iki.fi> parents: 17259 diff changeset	1180 director_cmd_error(conn, "Invalid parameters");
64808a9703db doveadm director kick command added. Timo Sirainen <tss@iki.fi> parents: 17259 diff changeset	1181 return FALSE;
64808a9703db doveadm director kick command added. Timo Sirainen <tss@iki.fi> parents: 17259 diff changeset	1182 }
64808a9703db doveadm director kick command added. Timo Sirainen <tss@iki.fi> parents: 17259 diff changeset	1183
64808a9703db doveadm director kick command added. Timo Sirainen <tss@iki.fi> parents: 17259 diff changeset	1184 director_kick_user(conn->dir, conn->host, dir_host, args[0]);
64808a9703db doveadm director kick command added. Timo Sirainen <tss@iki.fi> parents: 17259 diff changeset	1185 return TRUE;
64808a9703db doveadm director kick command added. Timo Sirainen <tss@iki.fi> parents: 17259 diff changeset	1186 }
64808a9703db doveadm director kick command added. Timo Sirainen <tss@iki.fi> parents: 17259 diff changeset	1187
64808a9703db doveadm director kick command added. Timo Sirainen <tss@iki.fi> parents: 17259 diff changeset	1188 static bool
20846 9d70a6f86e24 doveadm director kick: Added -f <passdb field> parameter. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20575 diff changeset	1189 director_cmd_user_kick_alt(struct director_connection *conn,
9d70a6f86e24 doveadm director kick: Added -f <passdb field> parameter. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20575 diff changeset	1190 const char const args)
9d70a6f86e24 doveadm director kick: Added -f <passdb field> parameter. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20575 diff changeset	1191 {
9d70a6f86e24 doveadm director kick: Added -f <passdb field> parameter. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20575 diff changeset	1192 struct director_host *dir_host;
9d70a6f86e24 doveadm director kick: Added -f <passdb field> parameter. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20575 diff changeset	1193 int ret;
9d70a6f86e24 doveadm director kick: Added -f <passdb field> parameter. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20575 diff changeset	1194
9d70a6f86e24 doveadm director kick: Added -f <passdb field> parameter. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20575 diff changeset	1195 if ((ret = director_cmd_is_seen(conn, &args, &dir_host)) != 0)
9d70a6f86e24 doveadm director kick: Added -f <passdb field> parameter. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20575 diff changeset	1196 return ret > 0;
9d70a6f86e24 doveadm director kick: Added -f <passdb field> parameter. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20575 diff changeset	1197
9d70a6f86e24 doveadm director kick: Added -f <passdb field> parameter. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20575 diff changeset	1198 if (str_array_length(args) != 2) {
9d70a6f86e24 doveadm director kick: Added -f <passdb field> parameter. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20575 diff changeset	1199 director_cmd_error(conn, "Invalid parameters");
9d70a6f86e24 doveadm director kick: Added -f <passdb field> parameter. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20575 diff changeset	1200 return FALSE;
9d70a6f86e24 doveadm director kick: Added -f <passdb field> parameter. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20575 diff changeset	1201 }
9d70a6f86e24 doveadm director kick: Added -f <passdb field> parameter. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20575 diff changeset	1202
9d70a6f86e24 doveadm director kick: Added -f <passdb field> parameter. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20575 diff changeset	1203 director_kick_user_alt(conn->dir, conn->host, dir_host, args[0], args[1]);
9d70a6f86e24 doveadm director kick: Added -f <passdb field> parameter. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20575 diff changeset	1204 return TRUE;
9d70a6f86e24 doveadm director kick: Added -f <passdb field> parameter. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20575 diff changeset	1205 }
9d70a6f86e24 doveadm director kick: Added -f <passdb field> parameter. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20575 diff changeset	1206
9d70a6f86e24 doveadm director kick: Added -f <passdb field> parameter. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20575 diff changeset	1207 static bool
17419 8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1208 director_cmd_user_kick_hash(struct director_connection *conn,
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1209 const char const args)
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1210 {
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1211 struct director_host *dir_host;
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1212 unsigned int username_hash;
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1213 struct ip_addr except_ip;
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1214 int ret;
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1215
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1216 if ((ret = director_cmd_is_seen(conn, &args, &dir_host)) != 0)
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1217 return ret > 0;
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1218
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1219 if (str_array_length(args) != 2 \|\|
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1220 str_to_uint(args[0], &username_hash) < 0 \|\|
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1221 net_addr2ip(args[1], &except_ip) < 0) {
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1222 director_cmd_error(conn, "Invalid parameters");
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1223 return FALSE;
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1224 }
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1225
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1226 director_kick_user_hash(conn->dir, conn->host, dir_host,
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1227 username_hash, &except_ip);
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1228 return TRUE;
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1229 }
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1230
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1231 static bool
13045 79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1232 director_cmd_user_killed(struct director_connection *conn,
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1233 const char const args)
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1234 {
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1235 unsigned int username_hash;
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1236
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1237 if (str_array_length(args) != 1 \|\|
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1238 str_to_uint(args[0], &username_hash) < 0) {
14407 d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1239 director_cmd_error(conn, "Invalid parameters");
13045 79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1240 return FALSE;
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1241 }
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1242
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1243 director_user_killed(conn->dir, username_hash);
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1244 return TRUE;
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1245 }
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1246
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1247 static bool
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1248 director_cmd_user_killed_everywhere(struct director_connection *conn,
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1249 const char const args)
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1250 {
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1251 struct director_host *dir_host;
20981 699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	1252 unsigned int seq, username_hash;
13045 79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1253 int ret;
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1254
20981 699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	1255 if ((ret = director_cmd_is_seen_full(conn, &args, &seq, &dir_host)) < 0)
699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	1256 return FALSE;
13045 79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1257
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1258 if (str_array_length(args) != 1 \|\|
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1259 str_to_uint(args[0], &username_hash) < 0) {
14407 d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1260 director_cmd_error(conn, "Invalid parameters");
13045 79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1261 return FALSE;
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1262 }
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1263
20981 699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	1264 if (ret > 0) {
699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	1265 i_assert(dir_host != NULL);
699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	1266 dir_debug("User %u - ignoring already seen USER-KILLED-EVERYWHERE "
699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	1267 "with seq=%u <= %s.last_seq=%u", username_hash,
699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	1268 seq, dir_host->name, dir_host->last_seq);
699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	1269 return TRUE;
699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	1270 }
699e305f6a39 director: Improve debug logging output. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20980 diff changeset	1271
13045 79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1272 director_user_killed_everywhere(conn->dir, conn->host,
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1273 dir_host, username_hash);
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1274 return TRUE;
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1275 }
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1276
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1277 static bool director_handshake_cmd_done(struct director_connection *conn)
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1278 {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1279 struct director *dir = conn->dir;
22252 8882a5cbe76d director: Use more accurate timestamps for handshake timeout logging Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22251 diff changeset	1280 int handshake_msecs = timeval_diff_msecs(&ioloop_timeval, &conn->connected_time);
15132 27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1281 string_t *str;
14478 ee169584bc44 director: Improved debug handshake message. Timo Sirainen <tss@iki.fi> parents: 14477 diff changeset	1282
16621 5ef62caea61b director: Update existing users' timestamps during handshake. Timo Sirainen <tss@iki.fi> parents: 16619 diff changeset	1283 if (conn->users_unsorted && conn->user_iter == NULL) {
5ef62caea61b director: Update existing users' timestamps during handshake. Timo Sirainen <tss@iki.fi> parents: 16619 diff changeset	1284 /* we sent our user list before receiving remote's */
5ef62caea61b director: Update existing users' timestamps during handshake. Timo Sirainen <tss@iki.fi> parents: 16619 diff changeset	1285 conn->users_unsorted = FALSE;
21079 d6f399a7f672 director: Keep per-tag directory Aki Tuomi <aki.tuomi@dovecot.fi> parents: 21077 diff changeset	1286 mail_hosts_sort_users(conn->dir->mail_hosts);
16621 5ef62caea61b director: Update existing users' timestamps during handshake. Timo Sirainen <tss@iki.fi> parents: 16619 diff changeset	1287 }
5ef62caea61b director: Update existing users' timestamps during handshake. Timo Sirainen <tss@iki.fi> parents: 16619 diff changeset	1288
18063 91c525000811 director: Always log a message when director handshake finishes. Timo Sirainen <tss@iki.fi> parents: 18062 diff changeset	1289 str = t_str_new(128);
22253 9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	1290 str_printfa(str, "director(%s): Handshake finished in %u.%03u secs (",
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	1291 conn->name, handshake_msecs/1000, handshake_msecs%1000);
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	1292 director_connection_append_stats(conn, str);
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	1293 str_append_c(str, ')');
22252 8882a5cbe76d director: Use more accurate timestamps for handshake timeout logging Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22251 diff changeset	1294 if (handshake_msecs >= DIRECTOR_HANDSHAKE_WARN_SECS*1000)
18063 91c525000811 director: Always log a message when director handshake finishes. Timo Sirainen <tss@iki.fi> parents: 18062 diff changeset	1295 i_warning("%s", str_c(str));
91c525000811 director: Always log a message when director handshake finishes. Timo Sirainen <tss@iki.fi> parents: 18062 diff changeset	1296 else
91c525000811 director: Always log a message when director handshake finishes. Timo Sirainen <tss@iki.fi> parents: 18062 diff changeset	1297 i_info("%s", str_c(str));
11579 61708c33154d director: Debug message improvements. Timo Sirainen <tss@iki.fi> parents: 11572 diff changeset	1298
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1299 /* the host is up now, make sure we can connect to it immediately
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1300 if needed */
14432 366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	1301 conn->host->last_network_failure = 0;
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1302
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1303 conn->handshake_received = TRUE;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1304 if (conn->in) {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1305 /* handshaked to left side. tell it we've received the
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1306 whole handshake. */
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1307 director_connection_send(conn, "DONE\n");
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1308
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1309 /* tell the "right" director about the "left" one */
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1310 director_update_send(dir, director_connection_get_host(conn),
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1311 t_strdup_printf("DIRECTOR\t%s\t%u\n",
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1312 net_ip2addr(&conn->host->ip),
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1313 conn->host->port));
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1314 /* this is our "left" side. */
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1315 return director_connection_assign_left(conn);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1316 } else {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1317 /* handshaked to "right" side. */
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1318 return director_connection_assign_right(conn);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1319 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1320 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1321
14408 544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1322 static int
18065 b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1323 director_handshake_cmd_options(struct director_connection *conn,
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1324 const char const args)
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1325 {
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1326 bool consistent_hashing = FALSE;
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1327 unsigned int i;
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1328
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1329 for (i = 0; args[i] != NULL; i++) {
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1330 if (strcmp(args[i], DIRECTOR_OPT_CONSISTENT_HASHING) == 0)
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1331 consistent_hashing = TRUE;
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1332 }
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1333 if (consistent_hashing != conn->dir->set->director_consistent_hashing) {
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1334 i_error("director(%s): director_consistent_hashing settings differ between directors",
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1335 conn->name);
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1336 return -1;
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1337 }
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1338 return 1;
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1339 }
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1340
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1341 static int
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1342 director_connection_handle_handshake(struct director_connection *conn,
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1343 const char cmd, const char const *args)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1344 {
19036 f78e38c7cba2 Removed all invocations of atoi(). Stephan Bosch <stephan@rename-it.nl> parents: 19035 diff changeset	1345 unsigned int major_version;
f78e38c7cba2 Removed all invocations of atoi(). Stephan Bosch <stephan@rename-it.nl> parents: 19035 diff changeset	1346
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1347 /* both incoming and outgoing connections get VERSION and ME */
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1348 if (strcmp(cmd, "VERSION") == 0 && str_array_length(args) >= 3) {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1349 if (strcmp(args[0], DIRECTOR_VERSION_NAME) != 0) {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1350 i_error("director(%s): Wrong protocol in socket "
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1351 "(%s vs %s)",
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1352 conn->name, args[0], DIRECTOR_VERSION_NAME);
14408 544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1353 return -1;
19036 f78e38c7cba2 Removed all invocations of atoi(). Stephan Bosch <stephan@rename-it.nl> parents: 19035 diff changeset	1354 } else if (str_to_uint(args[1], &major_version) < 0 \|\|
f78e38c7cba2 Removed all invocations of atoi(). Stephan Bosch <stephan@rename-it.nl> parents: 19035 diff changeset	1355 str_to_uint(args[2], &conn->minor_version) < 0) {
f78e38c7cba2 Removed all invocations of atoi(). Stephan Bosch <stephan@rename-it.nl> parents: 19035 diff changeset	1356 i_error("director(%s): Invalid protocol version: "
f78e38c7cba2 Removed all invocations of atoi(). Stephan Bosch <stephan@rename-it.nl> parents: 19035 diff changeset	1357 "%s.%s", conn->name, args[1], args[2]);
f78e38c7cba2 Removed all invocations of atoi(). Stephan Bosch <stephan@rename-it.nl> parents: 19035 diff changeset	1358 return -1;
f78e38c7cba2 Removed all invocations of atoi(). Stephan Bosch <stephan@rename-it.nl> parents: 19035 diff changeset	1359 } else if (major_version != DIRECTOR_VERSION_MAJOR) {
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1360 i_error("director(%s): Incompatible protocol version: "
19036 f78e38c7cba2 Removed all invocations of atoi(). Stephan Bosch <stephan@rename-it.nl> parents: 19035 diff changeset	1361 "%u vs %u", conn->name, major_version,
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1362 DIRECTOR_VERSION_MAJOR);
14408 544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1363 return -1;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1364 }
19411 0e05efd14b39 director: Fixed backend selection when multiple tags were used. Timo Sirainen <tss@iki.fi> parents: 19408 diff changeset	1365 if (conn->minor_version < DIRECTOR_VERSION_TAGS_V2 &&
0e05efd14b39 director: Fixed backend selection when multiple tags were used. Timo Sirainen <tss@iki.fi> parents: 19408 diff changeset	1366 mail_hosts_have_tags(conn->dir->mail_hosts)) {
0e05efd14b39 director: Fixed backend selection when multiple tags were used. Timo Sirainen <tss@iki.fi> parents: 19408 diff changeset	1367 i_error("director(%s): Director version supports incompatible tags", conn->name);
20295 4f4e9b238ddc director: Fixed error handling when directors support incompatible tags Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20286 diff changeset	1368 return -1;
19411 0e05efd14b39 director: Fixed backend selection when multiple tags were used. Timo Sirainen <tss@iki.fi> parents: 19408 diff changeset	1369 }
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1370 conn->version_received = TRUE;
20972 14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	1371 director_finish_sending_handshake(conn);
14408 544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1372 return 1;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1373 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1374 if (!conn->version_received) {
14407 d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1375 director_cmd_error(conn, "Incompatible protocol");
14408 544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1376 return -1;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1377 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1378
14408 544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1379 if (strcmp(cmd, "ME") == 0)
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1380 return director_cmd_me(conn, args) ? 1 : -1;
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1381 if (!conn->me_received) {
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1382 director_cmd_error(conn, "Expecting ME command first");
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1383 return -1;
11585 f0fb8151c6b4 director: A lot of fixes. Timo Sirainen <tss@iki.fi> parents: 11581 diff changeset	1384 }
11350 5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	1385
14408 544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1386 /* incoming connections get a HOST list */
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1387 if (conn->handshake_sending_hosts) {
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1388 if (strcmp(cmd, "HOST") == 0)
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1389 return director_cmd_host_handshake(conn, args) ? 1 : -1;
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1390 if (strcmp(cmd, "HOST-HAND-END") == 0) {
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1391 conn->ignore_host_events = FALSE;
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1392 conn->handshake_sending_hosts = FALSE;
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1393 return 1;
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1394 }
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1395 director_cmd_error(conn, "Unexpected command during host list");
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1396 return -1;
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1397 }
18065 b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1398 if (strcmp(cmd, "OPTIONS") == 0)
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1399 return director_handshake_cmd_options(conn, args);
14408 544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1400 if (strcmp(cmd, "HOST-HAND-START") == 0) {
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1401 if (!conn->in) {
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1402 director_cmd_error(conn,
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1403 "Host list is only for incoming connections");
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1404 return -1;
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1405 }
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1406 return director_cmd_host_hand_start(conn, args) ? 1 : -1;
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1407 }
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1408
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1409 if (conn->in && strcmp(cmd, "USER") == 0 && CMD_IS_USER_HANDHAKE(args))
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1410 return director_handshake_cmd_user(conn, args) ? 1 : -1;
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1411
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1412 /* both get DONE */
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1413 if (strcmp(cmd, "DONE") == 0)
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1414 return director_handshake_cmd_done(conn) ? 1 : -1;
14408 544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1415 return 0;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1416 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1417
16622 a6736e42301e director: Avoid infinite SYNC loops if the originating director goes away for a long time. Timo Sirainen <tss@iki.fi> parents: 16621 diff changeset	1418 static bool
13940 9e43af01f147 director: Make sure ring syncing doesn't get lost when directors get disconnected. Timo Sirainen <tss@iki.fi> parents: 13921 diff changeset	1419 director_connection_sync_host(struct director_connection *conn,
9e43af01f147 director: Make sure ring syncing doesn't get lost when directors get disconnected. Timo Sirainen <tss@iki.fi> parents: 13921 diff changeset	1420 struct director_host *host,
16622 a6736e42301e director: Avoid infinite SYNC loops if the originating director goes away for a long time. Timo Sirainen <tss@iki.fi> parents: 16621 diff changeset	1421 uint32_t seq, unsigned int minor_version,
19293 8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1422 unsigned int timestamp, unsigned int hosts_hash)
13940 9e43af01f147 director: Make sure ring syncing doesn't get lost when directors get disconnected. Timo Sirainen <tss@iki.fi> parents: 13921 diff changeset	1423 {
9e43af01f147 director: Make sure ring syncing doesn't get lost when directors get disconnected. Timo Sirainen <tss@iki.fi> parents: 13921 diff changeset	1424 struct director *dir = conn->dir;
9e43af01f147 director: Make sure ring syncing doesn't get lost when directors get disconnected. Timo Sirainen <tss@iki.fi> parents: 13921 diff changeset	1425
14306 334424e7465e director: Keep track of the highest supported protocol version in the ring. Timo Sirainen <tss@iki.fi> parents: 14303 diff changeset	1426 if (minor_version > DIRECTOR_VERSION_MINOR) {
334424e7465e director: Keep track of the highest supported protocol version in the ring. Timo Sirainen <tss@iki.fi> parents: 14303 diff changeset	1427 /* we're not up to date */
334424e7465e director: Keep track of the highest supported protocol version in the ring. Timo Sirainen <tss@iki.fi> parents: 14303 diff changeset	1428 minor_version = DIRECTOR_VERSION_MINOR;
334424e7465e director: Keep track of the highest supported protocol version in the ring. Timo Sirainen <tss@iki.fi> parents: 14303 diff changeset	1429 }
334424e7465e director: Keep track of the highest supported protocol version in the ring. Timo Sirainen <tss@iki.fi> parents: 14303 diff changeset	1430
13940 9e43af01f147 director: Make sure ring syncing doesn't get lost when directors get disconnected. Timo Sirainen <tss@iki.fi> parents: 13921 diff changeset	1431 if (host->self) {
9e43af01f147 director: Make sure ring syncing doesn't get lost when directors get disconnected. Timo Sirainen <tss@iki.fi> parents: 13921 diff changeset	1432 if (dir->sync_seq != seq) {
9e43af01f147 director: Make sure ring syncing doesn't get lost when directors get disconnected. Timo Sirainen <tss@iki.fi> parents: 13921 diff changeset	1433 /* stale SYNC event */
16622 a6736e42301e director: Avoid infinite SYNC loops if the originating director goes away for a long time. Timo Sirainen <tss@iki.fi> parents: 16621 diff changeset	1434 return FALSE;
13940 9e43af01f147 director: Make sure ring syncing doesn't get lost when directors get disconnected. Timo Sirainen <tss@iki.fi> parents: 13921 diff changeset	1435 }
14408 544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1436 /* sync_seq increases when we get disconnected, so we must be
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1437 successfully connected to both directions */
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1438 i_assert(dir->left != NULL && dir->right != NULL);
13940 9e43af01f147 director: Make sure ring syncing doesn't get lost when directors get disconnected. Timo Sirainen <tss@iki.fi> parents: 13921 diff changeset	1439
19293 8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1440 if (hosts_hash != 0 &&
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1441 hosts_hash != mail_hosts_hash(conn->dir->mail_hosts)) {
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1442 i_error("director(%s): Hosts unexpectedly changed during SYNC reply - resending"
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1443 "(seq=%u, old hosts_hash=%u, new hosts_hash=%u)",
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1444 conn->name, seq, hosts_hash,
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1445 mail_hosts_hash(dir->mail_hosts));
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1446 (void)director_resend_sync(dir);
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1447 return FALSE;
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1448 }
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1449
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	1450 dir->ring_min_version = minor_version;
13940 9e43af01f147 director: Make sure ring syncing doesn't get lost when directors get disconnected. Timo Sirainen <tss@iki.fi> parents: 13921 diff changeset	1451 if (!dir->ring_handshaked) {
9e43af01f147 director: Make sure ring syncing doesn't get lost when directors get disconnected. Timo Sirainen <tss@iki.fi> parents: 13921 diff changeset	1452 /* the ring is handshaked */
9e43af01f147 director: Make sure ring syncing doesn't get lost when directors get disconnected. Timo Sirainen <tss@iki.fi> parents: 13921 diff changeset	1453 director_set_ring_handshaked(dir);
9e43af01f147 director: Make sure ring syncing doesn't get lost when directors get disconnected. Timo Sirainen <tss@iki.fi> parents: 13921 diff changeset	1454 } else if (dir->ring_synced) {
9e43af01f147 director: Make sure ring syncing doesn't get lost when directors get disconnected. Timo Sirainen <tss@iki.fi> parents: 13921 diff changeset	1455 /* duplicate SYNC (which was sent just in case the
9e43af01f147 director: Make sure ring syncing doesn't get lost when directors get disconnected. Timo Sirainen <tss@iki.fi> parents: 13921 diff changeset	1456 previous one got lost) */
9e43af01f147 director: Make sure ring syncing doesn't get lost when directors get disconnected. Timo Sirainen <tss@iki.fi> parents: 13921 diff changeset	1457 } else {
19292 bae8efd8b5b3 director: Use mail_hosts_hash() to improve debug log messages. Timo Sirainen <tss@iki.fi> parents: 19289 diff changeset	1458 dir_debug("Ring is synced (%s sent seq=%u, hosts_hash=%u)",
bae8efd8b5b3 director: Use mail_hosts_hash() to improve debug log messages. Timo Sirainen <tss@iki.fi> parents: 19289 diff changeset	1459 conn->name, seq,
bae8efd8b5b3 director: Use mail_hosts_hash() to improve debug log messages. Timo Sirainen <tss@iki.fi> parents: 19289 diff changeset	1460 mail_hosts_hash(dir->mail_hosts));
13940 9e43af01f147 director: Make sure ring syncing doesn't get lost when directors get disconnected. Timo Sirainen <tss@iki.fi> parents: 13921 diff changeset	1461 director_set_ring_synced(dir);
9e43af01f147 director: Make sure ring syncing doesn't get lost when directors get disconnected. Timo Sirainen <tss@iki.fi> parents: 13921 diff changeset	1462 }
16622 a6736e42301e director: Avoid infinite SYNC loops if the originating director goes away for a long time. Timo Sirainen <tss@iki.fi> parents: 16621 diff changeset	1463 } else {
16790 c30453a58b4c director: Detect lost director restarts and reset last_sync_seq. Timo Sirainen <tss@iki.fi> parents: 16789 diff changeset	1464 if (seq < host->last_sync_seq &&
c30453a58b4c director: Detect lost director restarts and reset last_sync_seq. Timo Sirainen <tss@iki.fi> parents: 16789 diff changeset	1465 timestamp < host->last_sync_timestamp +
c30453a58b4c director: Detect lost director restarts and reset last_sync_seq. Timo Sirainen <tss@iki.fi> parents: 16789 diff changeset	1466 DIRECTOR_SYNC_STALE_TIMESTAMP_RESET_SECS) {
16622 a6736e42301e director: Avoid infinite SYNC loops if the originating director goes away for a long time. Timo Sirainen <tss@iki.fi> parents: 16621 diff changeset	1467 /* stale SYNC event */
16787 22a3ef9a006d director: Fix & improvement to debug logging. Timo Sirainen <tss@iki.fi> parents: 16786 diff changeset	1468 dir_debug("Ignore stale SYNC event for %s "
22a3ef9a006d director: Fix & improvement to debug logging. Timo Sirainen <tss@iki.fi> parents: 16786 diff changeset	1469 "(seq %u < %u, timestamp=%u)",
22a3ef9a006d director: Fix & improvement to debug logging. Timo Sirainen <tss@iki.fi> parents: 16786 diff changeset	1470 host->name, seq, host->last_sync_seq,
22a3ef9a006d director: Fix & improvement to debug logging. Timo Sirainen <tss@iki.fi> parents: 16786 diff changeset	1471 timestamp);
16622 a6736e42301e director: Avoid infinite SYNC loops if the originating director goes away for a long time. Timo Sirainen <tss@iki.fi> parents: 16621 diff changeset	1472 return FALSE;
16790 c30453a58b4c director: Detect lost director restarts and reset last_sync_seq. Timo Sirainen <tss@iki.fi> parents: 16789 diff changeset	1473 } else if (seq < host->last_sync_seq) {
c30453a58b4c director: Detect lost director restarts and reset last_sync_seq. Timo Sirainen <tss@iki.fi> parents: 16789 diff changeset	1474 i_warning("Last SYNC seq for %s appears to be stale, reseting "
c30453a58b4c director: Detect lost director restarts and reset last_sync_seq. Timo Sirainen <tss@iki.fi> parents: 16789 diff changeset	1475 "(seq=%u, timestamp=%u -> seq=%u, timestamp=%u)",
c30453a58b4c director: Detect lost director restarts and reset last_sync_seq. Timo Sirainen <tss@iki.fi> parents: 16789 diff changeset	1476 host->name, host->last_sync_seq,
c30453a58b4c director: Detect lost director restarts and reset last_sync_seq. Timo Sirainen <tss@iki.fi> parents: 16789 diff changeset	1477 host->last_sync_timestamp, seq, timestamp);
c30453a58b4c director: Detect lost director restarts and reset last_sync_seq. Timo Sirainen <tss@iki.fi> parents: 16789 diff changeset	1478 host->last_sync_seq = seq;
c30453a58b4c director: Detect lost director restarts and reset last_sync_seq. Timo Sirainen <tss@iki.fi> parents: 16789 diff changeset	1479 host->last_sync_timestamp = timestamp;
c30453a58b4c director: Detect lost director restarts and reset last_sync_seq. Timo Sirainen <tss@iki.fi> parents: 16789 diff changeset	1480 host->last_sync_seq_counter = 1;
c30453a58b4c director: Detect lost director restarts and reset last_sync_seq. Timo Sirainen <tss@iki.fi> parents: 16789 diff changeset	1481 } else if (seq > host->last_sync_seq \|\|
16695 f7a37b169f4a director: Previous change caused legitimate SYNC resends to be ignored. Timo Sirainen <tss@iki.fi> parents: 16678 diff changeset	1482 timestamp > host->last_sync_timestamp) {
16622 a6736e42301e director: Avoid infinite SYNC loops if the originating director goes away for a long time. Timo Sirainen <tss@iki.fi> parents: 16621 diff changeset	1483 host->last_sync_seq = seq;
a6736e42301e director: Avoid infinite SYNC loops if the originating director goes away for a long time. Timo Sirainen <tss@iki.fi> parents: 16621 diff changeset	1484 host->last_sync_timestamp = timestamp;
a6736e42301e director: Avoid infinite SYNC loops if the originating director goes away for a long time. Timo Sirainen <tss@iki.fi> parents: 16621 diff changeset	1485 host->last_sync_seq_counter = 1;
16790 c30453a58b4c director: Detect lost director restarts and reset last_sync_seq. Timo Sirainen <tss@iki.fi> parents: 16789 diff changeset	1486 dir_debug("Update SYNC for %s "
c30453a58b4c director: Detect lost director restarts and reset last_sync_seq. Timo Sirainen <tss@iki.fi> parents: 16789 diff changeset	1487 "(seq=%u, timestamp=%u -> seq=%u, timestamp=%u)",
c30453a58b4c director: Detect lost director restarts and reset last_sync_seq. Timo Sirainen <tss@iki.fi> parents: 16789 diff changeset	1488 host->name, host->last_sync_seq,
c30453a58b4c director: Detect lost director restarts and reset last_sync_seq. Timo Sirainen <tss@iki.fi> parents: 16789 diff changeset	1489 host->last_sync_timestamp, seq, timestamp);
16622 a6736e42301e director: Avoid infinite SYNC loops if the originating director goes away for a long time. Timo Sirainen <tss@iki.fi> parents: 16621 diff changeset	1490 } else if (++host->last_sync_seq_counter >
a6736e42301e director: Avoid infinite SYNC loops if the originating director goes away for a long time. Timo Sirainen <tss@iki.fi> parents: 16621 diff changeset	1491 DIRECTOR_MAX_SYNC_SEQ_DUPLICATES) {
a6736e42301e director: Avoid infinite SYNC loops if the originating director goes away for a long time. Timo Sirainen <tss@iki.fi> parents: 16621 diff changeset	1492 /* we've received this too many times already */
16786 17389ac3cb66 director: Added more debug logging. Timo Sirainen <tss@iki.fi> parents: 16699 diff changeset	1493 dir_debug("Ignore duplicate #%u SYNC event for %s "
17389ac3cb66 director: Added more debug logging. Timo Sirainen <tss@iki.fi> parents: 16699 diff changeset	1494 "(seq=%u, timestamp %u <= %u)",
16787 22a3ef9a006d director: Fix & improvement to debug logging. Timo Sirainen <tss@iki.fi> parents: 16786 diff changeset	1495 host->last_sync_seq_counter, host->name, seq,
16786 17389ac3cb66 director: Added more debug logging. Timo Sirainen <tss@iki.fi> parents: 16699 diff changeset	1496 timestamp, host->last_sync_timestamp);
16622 a6736e42301e director: Avoid infinite SYNC loops if the originating director goes away for a long time. Timo Sirainen <tss@iki.fi> parents: 16621 diff changeset	1497 return FALSE;
a6736e42301e director: Avoid infinite SYNC loops if the originating director goes away for a long time. Timo Sirainen <tss@iki.fi> parents: 16621 diff changeset	1498 }
a6736e42301e director: Avoid infinite SYNC loops if the originating director goes away for a long time. Timo Sirainen <tss@iki.fi> parents: 16621 diff changeset	1499
19293 8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1500 if (hosts_hash != 0 &&
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1501 hosts_hash != mail_hosts_hash(conn->dir->mail_hosts)) {
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1502 if (host->desynced_hosts_hash != hosts_hash) {
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1503 dir_debug("Ignore director %s stale SYNC request whose hosts don't match us "
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1504 "(seq=%u, remote hosts_hash=%u, my hosts_hash=%u)",
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1505 net_ip2addr(&host->ip), seq, hosts_hash,
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1506 mail_hosts_hash(dir->mail_hosts));
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1507 host->desynced_hosts_hash = hosts_hash;
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1508 return FALSE;
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1509 }
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1510 /* we'll get here only if we received a SYNC twice
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1511 with the same wrong hosts_hash. FIXME: this gets
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1512 triggered unnecessarily sometimes if hosts are
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1513 changing rapidly. */
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1514 i_error("director(%s): Director %s SYNC request hosts don't match us - resending hosts "
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1515 "(seq=%u, remote hosts_hash=%u, my hosts_hash=%u)",
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1516 conn->name, net_ip2addr(&host->ip), seq,
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1517 hosts_hash, mail_hosts_hash(dir->mail_hosts));
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1518 director_resend_hosts(dir);
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1519 return FALSE;
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1520 }
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1521 host->desynced_hosts_hash = 0;
16622 a6736e42301e director: Avoid infinite SYNC loops if the originating director goes away for a long time. Timo Sirainen <tss@iki.fi> parents: 16621 diff changeset	1522 if (dir->right != NULL) {
a6736e42301e director: Avoid infinite SYNC loops if the originating director goes away for a long time. Timo Sirainen <tss@iki.fi> parents: 16621 diff changeset	1523 /* forward it to the connection on right */
a6736e42301e director: Avoid infinite SYNC loops if the originating director goes away for a long time. Timo Sirainen <tss@iki.fi> parents: 16621 diff changeset	1524 director_sync_send(dir, host, seq, minor_version,
19293 8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1525 timestamp, hosts_hash);
20971 3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	1526 } else {
3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	1527 dir_debug("director(%s): We have no right connection - "
3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	1528 "delay replying to SYNC until finished", conn->name);
3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	1529 host->delayed_sync_seq = seq;
3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	1530 host->delayed_sync_minor_version = minor_version;
3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	1531 host->delayed_sync_timestamp = timestamp;
3e6f922c2322 director: If SYNCs are received during handshake, send them later. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20846 diff changeset	1532 host->delayed_sync_hosts_hash = hosts_hash;
16622 a6736e42301e director: Avoid infinite SYNC loops if the originating director goes away for a long time. Timo Sirainen <tss@iki.fi> parents: 16621 diff changeset	1533 }
13940 9e43af01f147 director: Make sure ring syncing doesn't get lost when directors get disconnected. Timo Sirainen <tss@iki.fi> parents: 13921 diff changeset	1534 }
16622 a6736e42301e director: Avoid infinite SYNC loops if the originating director goes away for a long time. Timo Sirainen <tss@iki.fi> parents: 16621 diff changeset	1535 return TRUE;
13940 9e43af01f147 director: Make sure ring syncing doesn't get lost when directors get disconnected. Timo Sirainen <tss@iki.fi> parents: 13921 diff changeset	1536 }
9e43af01f147 director: Make sure ring syncing doesn't get lost when directors get disconnected. Timo Sirainen <tss@iki.fi> parents: 13921 diff changeset	1537
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1538 static bool director_connection_sync(struct director_connection *conn,
14306 334424e7465e director: Keep track of the highest supported protocol version in the ring. Timo Sirainen <tss@iki.fi> parents: 14303 diff changeset	1539 const char const args)
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1540 {
11585 f0fb8151c6b4 director: A lot of fixes. Timo Sirainen <tss@iki.fi> parents: 11581 diff changeset	1541 struct director *dir = conn->dir;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1542 struct director_host *host;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1543 struct ip_addr ip;
19035 aabfe48db1cf Changed type of internet port values to in_port_t everywhere. Stephan Bosch <stephan@rename-it.nl> parents: 18858 diff changeset	1544 in_port_t port;
19289 4e0c9df36a78 director: Small code cleanup - make it easier to add parameters to SYNC Timo Sirainen <tss@iki.fi> parents: 19287 diff changeset	1545 unsigned int arg_count, seq, minor_version = 0, timestamp = ioloop_time;
19293 8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1546 unsigned int hosts_hash = 0;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1547
19289 4e0c9df36a78 director: Small code cleanup - make it easier to add parameters to SYNC Timo Sirainen <tss@iki.fi> parents: 19287 diff changeset	1548 arg_count = str_array_length(args);
4e0c9df36a78 director: Small code cleanup - make it easier to add parameters to SYNC Timo Sirainen <tss@iki.fi> parents: 19287 diff changeset	1549 if (arg_count < 3 \|\|
12208 a224997afefd director: Properly detect invalid command parameters in director<->director connections. Timo Sirainen <tss@iki.fi> parents: 12065 diff changeset	1550 !director_args_parse_ip_port(conn, args, &ip, &port) \|\|
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1551 str_to_uint(args[2], &seq) < 0) {
14407 d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1552 director_cmd_error(conn, "Invalid parameters");
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1553 return FALSE;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1554 }
19289 4e0c9df36a78 director: Small code cleanup - make it easier to add parameters to SYNC Timo Sirainen <tss@iki.fi> parents: 19287 diff changeset	1555 if (arg_count >= 4 && str_to_uint(args[3], &minor_version) < 0) {
4e0c9df36a78 director: Small code cleanup - make it easier to add parameters to SYNC Timo Sirainen <tss@iki.fi> parents: 19287 diff changeset	1556 director_cmd_error(conn, "Invalid parameters");
4e0c9df36a78 director: Small code cleanup - make it easier to add parameters to SYNC Timo Sirainen <tss@iki.fi> parents: 19287 diff changeset	1557 return FALSE;
4e0c9df36a78 director: Small code cleanup - make it easier to add parameters to SYNC Timo Sirainen <tss@iki.fi> parents: 19287 diff changeset	1558 }
4e0c9df36a78 director: Small code cleanup - make it easier to add parameters to SYNC Timo Sirainen <tss@iki.fi> parents: 19287 diff changeset	1559 if (arg_count >= 5 && str_to_uint(args[4], &timestamp) < 0) {
4e0c9df36a78 director: Small code cleanup - make it easier to add parameters to SYNC Timo Sirainen <tss@iki.fi> parents: 19287 diff changeset	1560 director_cmd_error(conn, "Invalid parameters");
4e0c9df36a78 director: Small code cleanup - make it easier to add parameters to SYNC Timo Sirainen <tss@iki.fi> parents: 19287 diff changeset	1561 return FALSE;
16622 a6736e42301e director: Avoid infinite SYNC loops if the originating director goes away for a long time. Timo Sirainen <tss@iki.fi> parents: 16621 diff changeset	1562 }
19293 8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1563 if (arg_count >= 6 && str_to_uint(args[5], &hosts_hash) < 0) {
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1564 director_cmd_error(conn, "Invalid parameters");
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1565 return FALSE;
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1566 }
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1567
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1568 /* find the originating director. if we don't see it, it was already
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1569 removed and we can ignore this sync. */
11585 f0fb8151c6b4 director: A lot of fixes. Timo Sirainen <tss@iki.fi> parents: 11581 diff changeset	1570 host = director_host_lookup(dir, &ip, port);
14306 334424e7465e director: Keep track of the highest supported protocol version in the ring. Timo Sirainen <tss@iki.fi> parents: 14303 diff changeset	1571 if (host != NULL) {
16622 a6736e42301e director: Avoid infinite SYNC loops if the originating director goes away for a long time. Timo Sirainen <tss@iki.fi> parents: 16621 diff changeset	1572 if (!director_connection_sync_host(conn, host, seq,
19293 8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1573 minor_version, timestamp,
8f225e43e6e3 director: Detect if directors' hosts have become desynced by sending hosts_hash in SYNC parameter. Timo Sirainen <tss@iki.fi> parents: 19292 diff changeset	1574 hosts_hash))
16622 a6736e42301e director: Avoid infinite SYNC loops if the originating director goes away for a long time. Timo Sirainen <tss@iki.fi> parents: 16621 diff changeset	1575 return TRUE;
14306 334424e7465e director: Keep track of the highest supported protocol version in the ring. Timo Sirainen <tss@iki.fi> parents: 14303 diff changeset	1576 }
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1577
19954 82ffadc8c4d7 director: Don't re-send SYNC unnecessarily often. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19953 diff changeset	1578 /* If directors got disconnected while we were waiting a SYNC reply,
82ffadc8c4d7 director: Don't re-send SYNC unnecessarily often. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19953 diff changeset	1579 it might have gotten lost. If we've received a DIRECTOR update since
82ffadc8c4d7 director: Don't re-send SYNC unnecessarily often. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19953 diff changeset	1580 the last time we sent a SYNC, retry sending it here to make sure
82ffadc8c4d7 director: Don't re-send SYNC unnecessarily often. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19953 diff changeset	1581 it doesn't get stuck. We don't want to do this too eagerly because
82ffadc8c4d7 director: Don't re-send SYNC unnecessarily often. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19953 diff changeset	1582 it may trigger desynced_hosts_hash != hosts_hash mismatch, which
82ffadc8c4d7 director: Don't re-send SYNC unnecessarily often. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19953 diff changeset	1583 causes unnecessary error logging and hosts-resending. */
16622 a6736e42301e director: Avoid infinite SYNC loops if the originating director goes away for a long time. Timo Sirainen <tss@iki.fi> parents: 16621 diff changeset	1584 if ((host == NULL \|\| !host->self) &&
19954 82ffadc8c4d7 director: Don't re-send SYNC unnecessarily often. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19953 diff changeset	1585 dir->last_sync_sent_ring_change_counter != dir->ring_change_counter &&
16678 17e43eda8f22 Compiler warning fixes. Timo Sirainen <tss@iki.fi> parents: 16622 diff changeset	1586 (time_t)dir->self_host->last_sync_timestamp != ioloop_time)
14682 d0d7b810646b Make sure we check all the functions' return values. Minor API changes to simplify this. Timo Sirainen <tss@iki.fi> parents: 14681 diff changeset	1587 (void)director_resend_sync(dir);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1588 return TRUE;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1589 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1590
11571 75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1591 static bool director_cmd_connect(struct director_connection *conn,
75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1592 const char const args)
75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1593 {
75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1594 struct director *dir = conn->dir;
75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1595 struct director_host *host;
75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1596 struct ip_addr ip;
19035 aabfe48db1cf Changed type of internet port values to in_port_t everywhere. Stephan Bosch <stephan@rename-it.nl> parents: 18858 diff changeset	1597 in_port_t port;
11571 75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1598
75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1599 if (str_array_length(args) != 2 \|\|
12208 a224997afefd director: Properly detect invalid command parameters in director<->director connections. Timo Sirainen <tss@iki.fi> parents: 12065 diff changeset	1600 !director_args_parse_ip_port(conn, args, &ip, &port)) {
14407 d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1601 director_cmd_error(conn, "Invalid parameters");
11571 75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1602 return FALSE;
75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1603 }
75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1604
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1605 host = director_host_get(conn->dir, &ip, port);
11571 75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1606
75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1607 /* remote suggests us to connect elsewhere */
75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1608 if (dir->right != NULL &&
75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1609 director_host_cmp_to_self(host, dir->right->host,
75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1610 dir->self_host) <= 0) {
75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1611 /* the old connection is the correct one */
15326 48af47f2eb9c director: -D parameter now enables extensive debug logging. Timo Sirainen <tss@iki.fi> parents: 15324 diff changeset	1612 dir_debug("Ignoring CONNECT request to %s (current right is %s)",
48af47f2eb9c director: -D parameter now enables extensive debug logging. Timo Sirainen <tss@iki.fi> parents: 15324 diff changeset	1613 host->name, dir->right->name);
11571 75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1614 return TRUE;
75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1615 }
75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1616
19973 0b5aeb95924a director: Avoid a potential assert-crash after removing a director from ring. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19954 diff changeset	1617 /* reset failure timestamp so we'll actually try to connect there. */
0b5aeb95924a director: Avoid a potential assert-crash after removing a director from ring. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19954 diff changeset	1618 host->last_network_failure = 0;
0b5aeb95924a director: Avoid a potential assert-crash after removing a director from ring. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19954 diff changeset	1619 /* reset removed-flag, so we don't crash */
0b5aeb95924a director: Avoid a potential assert-crash after removing a director from ring. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19954 diff changeset	1620 host->removed = FALSE;
0b5aeb95924a director: Avoid a potential assert-crash after removing a director from ring. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19954 diff changeset	1621
15326 48af47f2eb9c director: -D parameter now enables extensive debug logging. Timo Sirainen <tss@iki.fi> parents: 15324 diff changeset	1622 if (dir->right == NULL) {
48af47f2eb9c director: -D parameter now enables extensive debug logging. Timo Sirainen <tss@iki.fi> parents: 15324 diff changeset	1623 dir_debug("Received CONNECT request to %s, "
48af47f2eb9c director: -D parameter now enables extensive debug logging. Timo Sirainen <tss@iki.fi> parents: 15324 diff changeset	1624 "initializing right", host->name);
48af47f2eb9c director: -D parameter now enables extensive debug logging. Timo Sirainen <tss@iki.fi> parents: 15324 diff changeset	1625 } else {
48af47f2eb9c director: -D parameter now enables extensive debug logging. Timo Sirainen <tss@iki.fi> parents: 15324 diff changeset	1626 dir_debug("Received CONNECT request to %s, "
48af47f2eb9c director: -D parameter now enables extensive debug logging. Timo Sirainen <tss@iki.fi> parents: 15324 diff changeset	1627 "replacing current right %s",
48af47f2eb9c director: -D parameter now enables extensive debug logging. Timo Sirainen <tss@iki.fi> parents: 15324 diff changeset	1628 host->name, dir->right->name);
11579 61708c33154d director: Debug message improvements. Timo Sirainen <tss@iki.fi> parents: 11572 diff changeset	1629 }
61708c33154d director: Debug message improvements. Timo Sirainen <tss@iki.fi> parents: 11572 diff changeset	1630
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1631 /* connect here */
11571 75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1632 (void)director_connect_host(dir, host);
75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1633 return TRUE;
75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1634 }
75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1635
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1636 static void director_disconnect_wrong_lefts(struct director *dir)
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1637 {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1638 struct director_connection const connp, *conn;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1639
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1640 array_foreach(&dir->connections, connp) {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1641 conn = *connp;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1642
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1643 if (conn->in && conn != dir->left && conn->me_received &&
14494 d27b743c9921 director: Delay disconnecting director after sending CONNECT command. Timo Sirainen <tss@iki.fi> parents: 14493 diff changeset	1644 conn->to_disconnect == NULL &&
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1645 director_host_cmp_to_self(dir->left->host, conn->host,
15132 27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1646 dir->self_host) < 0)
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1647 director_connection_send_connect(conn, dir->left->host);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1648 }
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1649 }
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1650
11586 e75dab14bb2f director: Send PINGs every 15 seconds for idling director connections. Timo Sirainen <tss@iki.fi> parents: 11585 diff changeset	1651 static bool director_cmd_pong(struct director_connection *conn)
e75dab14bb2f director: Send PINGs every 15 seconds for idling director connections. Timo Sirainen <tss@iki.fi> parents: 11585 diff changeset	1652 {
e75dab14bb2f director: Send PINGs every 15 seconds for idling director connections. Timo Sirainen <tss@iki.fi> parents: 11585 diff changeset	1653 if (!conn->ping_waiting)
e75dab14bb2f director: Send PINGs every 15 seconds for idling director connections. Timo Sirainen <tss@iki.fi> parents: 11585 diff changeset	1654 return TRUE;
14405 168e3b5cb6e8 director: Changes to PING handling. Timo Sirainen <tss@iki.fi> parents: 14310 diff changeset	1655 conn->ping_waiting = FALSE;
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1656 timeout_remove(&conn->to_pong);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1657
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1658 if (conn->verifying_left) {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1659 conn->verifying_left = FALSE;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1660 if (conn == conn->dir->left) {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1661 /* our left side is functional. tell all the wrong
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1662 incoming connections to connect to it instead. */
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1663 director_disconnect_wrong_lefts(conn->dir);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1664 }
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1665 }
11586 e75dab14bb2f director: Send PINGs every 15 seconds for idling director connections. Timo Sirainen <tss@iki.fi> parents: 11585 diff changeset	1666
14405 168e3b5cb6e8 director: Changes to PING handling. Timo Sirainen <tss@iki.fi> parents: 14310 diff changeset	1667 director_connection_set_ping_timeout(conn);
11586 e75dab14bb2f director: Send PINGs every 15 seconds for idling director connections. Timo Sirainen <tss@iki.fi> parents: 11585 diff changeset	1668 return TRUE;
e75dab14bb2f director: Send PINGs every 15 seconds for idling director connections. Timo Sirainen <tss@iki.fi> parents: 11585 diff changeset	1669 }
e75dab14bb2f director: Send PINGs every 15 seconds for idling director connections. Timo Sirainen <tss@iki.fi> parents: 11585 diff changeset	1670
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1671 static bool
14407 d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1672 director_connection_handle_cmd(struct director_connection *conn,
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1673 const char cmd, const char const *args)
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1674 {
14408 544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1675 int ret;
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1676
11327 9d886ae434c3 director: If connecting to director fails, try connecting to next one. Timo Sirainen <tss@iki.fi> parents: 11321 diff changeset	1677 if (!conn->handshake_received) {
14408 544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1678 ret = director_connection_handle_handshake(conn, cmd, args);
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1679 if (ret > 0)
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1680 return TRUE;
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1681 if (ret < 0) {
11327 9d886ae434c3 director: If connecting to director fails, try connecting to next one. Timo Sirainen <tss@iki.fi> parents: 11321 diff changeset	1682 /* invalid commands during handshake,
9d886ae434c3 director: If connecting to director fails, try connecting to next one. Timo Sirainen <tss@iki.fi> parents: 11321 diff changeset	1683 we probably don't want to reconnect here */
9d886ae434c3 director: If connecting to director fails, try connecting to next one. Timo Sirainen <tss@iki.fi> parents: 11321 diff changeset	1684 return FALSE;
9d886ae434c3 director: If connecting to director fails, try connecting to next one. Timo Sirainen <tss@iki.fi> parents: 11321 diff changeset	1685 }
14408 544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1686 /* allow also other commands during handshake */
11327 9d886ae434c3 director: If connecting to director fails, try connecting to next one. Timo Sirainen <tss@iki.fi> parents: 11321 diff changeset	1687 }
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1688
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1689 if (strcmp(cmd, "PING") == 0) {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1690 director_connection_send(conn, "PONG\n");
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1691 return TRUE;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1692 }
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1693 if (strcmp(cmd, "PONG") == 0)
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1694 return director_cmd_pong(conn);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1695 if (strcmp(cmd, "USER") == 0)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1696 return director_cmd_user(conn, args);
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	1697 if (strcmp(cmd, "USER-WEAK") == 0)
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	1698 return director_cmd_user_weak(conn, args);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1699 if (strcmp(cmd, "HOST") == 0)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1700 return director_cmd_host(conn, args);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1701 if (strcmp(cmd, "HOST-REMOVE") == 0)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1702 return director_cmd_host_remove(conn, args);
11355 ef1de95396d4 Added doveadm director flush command for dropping user associations from memory. Timo Sirainen <tss@iki.fi> parents: 11352 diff changeset	1703 if (strcmp(cmd, "HOST-FLUSH") == 0)
ef1de95396d4 Added doveadm director flush command for dropping user associations from memory. Timo Sirainen <tss@iki.fi> parents: 11352 diff changeset	1704 return director_cmd_host_flush(conn, args);
13045 79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1705 if (strcmp(cmd, "USER-MOVE") == 0)
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1706 return director_cmd_user_move(conn, args);
17418 64808a9703db doveadm director kick command added. Timo Sirainen <tss@iki.fi> parents: 17259 diff changeset	1707 if (strcmp(cmd, "USER-KICK") == 0)
64808a9703db doveadm director kick command added. Timo Sirainen <tss@iki.fi> parents: 17259 diff changeset	1708 return director_cmd_user_kick(conn, args);
20846 9d70a6f86e24 doveadm director kick: Added -f <passdb field> parameter. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20575 diff changeset	1709 if (strcmp(cmd, "USER-KICK-ALT") == 0)
9d70a6f86e24 doveadm director kick: Added -f <passdb field> parameter. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20575 diff changeset	1710 return director_cmd_user_kick_alt(conn, args);
17419 8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1711 if (strcmp(cmd, "USER-KICK-HASH") == 0)
8aa0cd95d6a8 director: If we detect that a user is being proxied to multiple backends, disconnect wrong connections. Timo Sirainen <tss@iki.fi> parents: 17418 diff changeset	1712 return director_cmd_user_kick_hash(conn, args);
13045 79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1713 if (strcmp(cmd, "USER-KILLED") == 0)
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1714 return director_cmd_user_killed(conn, args);
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1715 if (strcmp(cmd, "USER-KILLED-EVERYWHERE") == 0)
79f9dce5d5fd director: Added support for moving user to another server with "doveadm director move". Timo Sirainen <tss@iki.fi> parents: 12935 diff changeset	1716 return director_cmd_user_killed_everywhere(conn, args);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1717 if (strcmp(cmd, "DIRECTOR") == 0)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1718 return director_cmd_director(conn, args);
14571 42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	1719 if (strcmp(cmd, "DIRECTOR-REMOVE") == 0)
42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	1720 return director_cmd_director_remove(conn, args);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1721 if (strcmp(cmd, "SYNC") == 0)
14306 334424e7465e director: Keep track of the highest supported protocol version in the ring. Timo Sirainen <tss@iki.fi> parents: 14303 diff changeset	1722 return director_connection_sync(conn, args);
11571 75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1723 if (strcmp(cmd, "CONNECT") == 0)
75d5e31ea8cc director: Handle CONNECT commands (properly). Timo Sirainen <tss@iki.fi> parents: 11569 diff changeset	1724 return director_cmd_connect(conn, args);
15132 27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1725 if (strcmp(cmd, "QUIT") == 0) {
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1726 i_warning("Director %s disconnected us with reason: %s",
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1727 conn->name, t_strarray_join(args, " "));
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1728 return FALSE;
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1729 }
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1730
14407 d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1731 director_cmd_error(conn, "Unknown command %s", cmd);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1732 return FALSE;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1733 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1734
14407 d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1735 static bool
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1736 director_connection_handle_line(struct director_connection *conn,
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1737 const char *line)
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1738 {
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1739 const char cmd, const *args;
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1740 bool ret;
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1741
15326 48af47f2eb9c director: -D parameter now enables extensive debug logging. Timo Sirainen <tss@iki.fi> parents: 15324 diff changeset	1742 dir_debug("input: %s: %s", conn->name, line);
48af47f2eb9c director: -D parameter now enables extensive debug logging. Timo Sirainen <tss@iki.fi> parents: 15324 diff changeset	1743
22311 25af9d4dad59 global: Replaced t_strsplit_tab() calls with t_strsplit_tabescaped() Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22256 diff changeset	1744 args = t_strsplit_tabescaped(line);
14407 d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1745 cmd = args[0]; args++;
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1746 if (cmd == NULL) {
14479 293ada796ae6 director: Fixed protocol error detection/handling. Timo Sirainen <tss@iki.fi> parents: 14478 diff changeset	1747 director_cmd_error(conn, "Received empty line");
14407 d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1748 return FALSE;
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1749 }
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1750
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1751 conn->cur_cmd = cmd;
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1752 conn->cur_line = line;
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1753 ret = director_connection_handle_cmd(conn, cmd, args);
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1754 conn->cur_cmd = NULL;
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1755 conn->cur_line = NULL;
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1756 return ret;
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1757 }
d6cd93e32b37 director: Improved error logging for handling invalid commands/parameters. Timo Sirainen <tss@iki.fi> parents: 14406 diff changeset	1758
15132 27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1759 static void
18662 27baf04f2b18 director: If we disconnect a director, pass the reason all the way to deinit's debug logging. Timo Sirainen <tss@iki.fi> parents: 18137 diff changeset	1760 director_connection_log_disconnect(struct director_connection *conn, int err,
27baf04f2b18 director: If we disconnect a director, pass the reason all the way to deinit's debug logging. Timo Sirainen <tss@iki.fi> parents: 18137 diff changeset	1761 const char *errstr)
15132 27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1762 {
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1763 string_t *str = t_str_new(128);
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1764
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1765 i_assert(conn->connected);
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1766
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1767 if (conn->connect_request_to != NULL) {
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1768 i_warning("Director %s tried to connect to us, "
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1769 "should use %s instead",
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1770 conn->name, conn->connect_request_to->name);
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1771 return;
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1772 }
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1773
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1774 str_printfa(str, "Director %s disconnected: ", conn->name);
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1775 str_append(str, "Connection closed");
16618 0ad8da149774 director: Log director disconnection errno correctly. Timo Sirainen <tss@iki.fi> parents: 15715 diff changeset	1776 if (err != 0 && err != EPIPE) {
0ad8da149774 director: Log director disconnection errno correctly. Timo Sirainen <tss@iki.fi> parents: 15715 diff changeset	1777 errno = err;
18662 27baf04f2b18 director: If we disconnect a director, pass the reason all the way to deinit's debug logging. Timo Sirainen <tss@iki.fi> parents: 18137 diff changeset	1778 if (errstr[0] == '\0')
27baf04f2b18 director: If we disconnect a director, pass the reason all the way to deinit's debug logging. Timo Sirainen <tss@iki.fi> parents: 18137 diff changeset	1779 str_printfa(str, ": %m");
27baf04f2b18 director: If we disconnect a director, pass the reason all the way to deinit's debug logging. Timo Sirainen <tss@iki.fi> parents: 18137 diff changeset	1780 else
27baf04f2b18 director: If we disconnect a director, pass the reason all the way to deinit's debug logging. Timo Sirainen <tss@iki.fi> parents: 18137 diff changeset	1781 str_printfa(str, ": %s", errstr);
16618 0ad8da149774 director: Log director disconnection errno correctly. Timo Sirainen <tss@iki.fi> parents: 15715 diff changeset	1782 }
15132 27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1783
22255 a841e797bac2 director: Fix whitespace position in some log messages Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22254 diff changeset	1784 str_append(str, " (");
22253 9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	1785 director_connection_append_stats(conn, str);
15132 27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1786
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1787 if (!conn->me_received)
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1788 str_append(str, ", handshake ME not received");
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1789 else if (!conn->handshake_received)
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1790 str_append(str, ", handshake DONE not received");
22253 9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	1791 str_append_c(str, ')');
15132 27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1792 i_error("%s", str_c(str));
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1793 }
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1794
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1795 static void director_connection_input(struct director_connection *conn)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1796 {
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1797 struct director *dir = conn->dir;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1798 char *line;
18664 502755a1af5f director: Include useful statistics in process title. Timo Sirainen <tss@iki.fi> parents: 18663 diff changeset	1799 uoff_t prev_offset;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1800 bool ret;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1801
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1802 switch (i_stream_read(conn->input)) {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1803 case 0:
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1804 return;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1805 case -1:
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1806 /* disconnected */
18662 27baf04f2b18 director: If we disconnect a director, pass the reason all the way to deinit's debug logging. Timo Sirainen <tss@iki.fi> parents: 18137 diff changeset	1807 director_connection_log_disconnect(conn, conn->input->stream_errno,
27baf04f2b18 director: If we disconnect a director, pass the reason all the way to deinit's debug logging. Timo Sirainen <tss@iki.fi> parents: 18137 diff changeset	1808 i_stream_get_error(conn->input));
27baf04f2b18 director: If we disconnect a director, pass the reason all the way to deinit's debug logging. Timo Sirainen <tss@iki.fi> parents: 18137 diff changeset	1809 director_connection_disconnected(&conn, i_stream_get_error(conn->input));
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1810 return;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1811 case -2:
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1812 /* buffer full */
14479 293ada796ae6 director: Fixed protocol error detection/handling. Timo Sirainen <tss@iki.fi> parents: 14478 diff changeset	1813 director_cmd_error(conn, "Director sent us more than %d bytes",
293ada796ae6 director: Fixed protocol error detection/handling. Timo Sirainen <tss@iki.fi> parents: 14478 diff changeset	1814 MAX_INBUF_SIZE);
15132 27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1815 director_connection_reconnect(&conn, "Too long input line");
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1816 return;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1817 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1818
14494 d27b743c9921 director: Delay disconnecting director after sending CONNECT command. Timo Sirainen <tss@iki.fi> parents: 14493 diff changeset	1819 if (conn->to_disconnect != NULL) {
d27b743c9921 director: Delay disconnecting director after sending CONNECT command. Timo Sirainen <tss@iki.fi> parents: 14493 diff changeset	1820 /* just read everything the remote sends, and wait for it
d27b743c9921 director: Delay disconnecting director after sending CONNECT command. Timo Sirainen <tss@iki.fi> parents: 14493 diff changeset	1821 to disconnect. we mainly just want the remote to read the
d27b743c9921 director: Delay disconnecting director after sending CONNECT command. Timo Sirainen <tss@iki.fi> parents: 14493 diff changeset	1822 CONNECT we sent it. */
14683 9646f80ac3e9 Added i_stream_get_data_size(). Used it where possible. Timo Sirainen <tss@iki.fi> parents: 14682 diff changeset	1823 i_stream_skip(conn->input, i_stream_get_data_size(conn->input));
14494 d27b743c9921 director: Delay disconnecting director after sending CONNECT command. Timo Sirainen <tss@iki.fi> parents: 14493 diff changeset	1824 return;
d27b743c9921 director: Delay disconnecting director after sending CONNECT command. Timo Sirainen <tss@iki.fi> parents: 14493 diff changeset	1825 }
20575 bceac5d8ae3b director: Added more debug information to "Ping timed out" error Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20295 diff changeset	1826 conn->last_input = ioloop_timeval;
14494 d27b743c9921 director: Delay disconnecting director after sending CONNECT command. Timo Sirainen <tss@iki.fi> parents: 14493 diff changeset	1827
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1828 director_sync_freeze(dir);
18664 502755a1af5f director: Include useful statistics in process title. Timo Sirainen <tss@iki.fi> parents: 18663 diff changeset	1829 prev_offset = conn->input->v_offset;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1830 while ((line = i_stream_next_line(conn->input)) != NULL) {
18664 502755a1af5f director: Include useful statistics in process title. Timo Sirainen <tss@iki.fi> parents: 18663 diff changeset	1831 dir->ring_traffic_input += conn->input->v_offset - prev_offset;
502755a1af5f director: Include useful statistics in process title. Timo Sirainen <tss@iki.fi> parents: 18663 diff changeset	1832 prev_offset = conn->input->v_offset;
502755a1af5f director: Include useful statistics in process title. Timo Sirainen <tss@iki.fi> parents: 18663 diff changeset	1833
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1834 T_BEGIN {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1835 ret = director_connection_handle_line(conn, line);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1836 } T_END;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1837
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1838 if (!ret) {
15132 27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1839 director_connection_reconnect(&conn, t_strdup_printf(
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	1840 "Invalid input: %s", line));
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1841 break;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1842 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1843 }
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	1844 director_sync_thaw(dir);
14405 168e3b5cb6e8 director: Changes to PING handling. Timo Sirainen <tss@iki.fi> parents: 14310 diff changeset	1845 if (conn != NULL)
168e3b5cb6e8 director: Changes to PING handling. Timo Sirainen <tss@iki.fi> parents: 14310 diff changeset	1846 timeout_reset(conn->to_ping);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1847 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1848
20972 14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	1849 static void director_connection_send_directors(struct director_connection *conn)
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1850 {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1851 struct director_host const hostp;
20972 14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	1852 string_t *str = t_str_new(64);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1853
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1854 array_foreach(&conn->dir->dir_hosts, hostp) {
14571 42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	1855 if ((*hostp)->removed)
42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	1856 continue;
20972 14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	1857
14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	1858 str_truncate(str, 0);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1859 str_printfa(str, "DIRECTOR\t%s\t%u\n",
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1860 net_ip2addr(&(hostp)->ip), (hostp)->port);
20972 14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	1861 director_connection_send(conn, str_c(str));
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1862 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1863 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1864
11350 5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	1865 static void
20972 14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	1866 director_connection_send_hosts(struct director_connection *conn)
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1867 {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1868 struct mail_host const hostp;
18729 0ee3e734249a director: Added "up" vs "down" states and doveadm director up/down commands. Timo Sirainen <tss@iki.fi> parents: 18708 diff changeset	1869 bool send_updowns;
20972 14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	1870 string_t *str = t_str_new(128);
14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	1871
14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	1872 i_assert(conn->version_received);
18729 0ee3e734249a director: Added "up" vs "down" states and doveadm director up/down commands. Timo Sirainen <tss@iki.fi> parents: 18708 diff changeset	1873
0ee3e734249a director: Added "up" vs "down" states and doveadm director up/down commands. Timo Sirainen <tss@iki.fi> parents: 18708 diff changeset	1874 send_updowns = conn->minor_version >= DIRECTOR_VERSION_UPDOWN;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1875
11350 5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	1876 str_printfa(str, "HOST-HAND-START\t%u\n", conn->dir->ring_handshaked);
11352 19336bddada2 director: Code cleanup - keep mail hosts in a struct rather than in static variables. Timo Sirainen <tss@iki.fi> parents: 11350 diff changeset	1877 array_foreach(mail_hosts_get(conn->dir->mail_hosts), hostp) {
18729 0ee3e734249a director: Added "up" vs "down" states and doveadm director up/down commands. Timo Sirainen <tss@iki.fi> parents: 18708 diff changeset	1878 struct mail_host host = hostp;
19408 7e47f561ad49 director: Code cleanup - access host->tag via mail_host_get_tag() Timo Sirainen <tss@iki.fi> parents: 19407 diff changeset	1879 const char *host_tag = mail_host_get_tag(host);
18729 0ee3e734249a director: Added "up" vs "down" states and doveadm director up/down commands. Timo Sirainen <tss@iki.fi> parents: 18708 diff changeset	1880
18067 a7e830b9b967 director: Added support for backend cluster "tags". Timo Sirainen <tss@iki.fi> parents: 18065 diff changeset	1881 str_printfa(str, "HOST\t%s\t%u",
18729 0ee3e734249a director: Added "up" vs "down" states and doveadm director up/down commands. Timo Sirainen <tss@iki.fi> parents: 18708 diff changeset	1882 net_ip2addr(&host->ip), host->vhost_count);
19408 7e47f561ad49 director: Code cleanup - access host->tag via mail_host_get_tag() Timo Sirainen <tss@iki.fi> parents: 19407 diff changeset	1883 if (host_tag[0] != '\0' \|\| send_updowns) {
18067 a7e830b9b967 director: Added support for backend cluster "tags". Timo Sirainen <tss@iki.fi> parents: 18065 diff changeset	1884 str_append_c(str, '\t');
19408 7e47f561ad49 director: Code cleanup - access host->tag via mail_host_get_tag() Timo Sirainen <tss@iki.fi> parents: 19407 diff changeset	1885 str_append_tabescaped(str, host_tag);
18729 0ee3e734249a director: Added "up" vs "down" states and doveadm director up/down commands. Timo Sirainen <tss@iki.fi> parents: 18708 diff changeset	1886 }
0ee3e734249a director: Added "up" vs "down" states and doveadm director up/down commands. Timo Sirainen <tss@iki.fi> parents: 18708 diff changeset	1887 if (send_updowns) {
19310 7f718c840aff director: Remember backends' hostnames and send them in login reply. Timo Sirainen <tss@iki.fi> parents: 19309 diff changeset	1888 str_printfa(str, "\t%c%ld\t", host->down ? 'D' : 'U',
18729 0ee3e734249a director: Added "up" vs "down" states and doveadm director up/down commands. Timo Sirainen <tss@iki.fi> parents: 18708 diff changeset	1889 (long)host->last_updown_change);
19310 7f718c840aff director: Remember backends' hostnames and send them in login reply. Timo Sirainen <tss@iki.fi> parents: 19309 diff changeset	1890 if (host->hostname != NULL)
7f718c840aff director: Remember backends' hostnames and send them in login reply. Timo Sirainen <tss@iki.fi> parents: 19309 diff changeset	1891 str_append_tabescaped(str, host->hostname);
18067 a7e830b9b967 director: Added support for backend cluster "tags". Timo Sirainen <tss@iki.fi> parents: 18065 diff changeset	1892 }
a7e830b9b967 director: Added support for backend cluster "tags". Timo Sirainen <tss@iki.fi> parents: 18065 diff changeset	1893 str_append_c(str, '\n');
20972 14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	1894 director_connection_send(conn, str_c(str));
14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	1895 str_truncate(str, 0);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1896 }
11350 5f77c91f3df0 director: Preserve old mail server state when a new director connects to ring. Timo Sirainen <tss@iki.fi> parents: 11349 diff changeset	1897 str_printfa(str, "HOST-HAND-END\t%u\n", conn->dir->ring_handshaked);
20972 14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	1898 director_connection_send(conn, str_c(str));
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1899 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1900
18065 b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1901 static int director_connection_send_done(struct director_connection *conn)
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1902 {
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1903 i_assert(conn->version_received);
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1904
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1905 if (!conn->dir->set->director_consistent_hashing)
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1906 ;
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1907 else if (conn->minor_version >= DIRECTOR_VERSION_OPTIONS) {
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1908 director_connection_send(conn,
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1909 "OPTIONS\t"DIRECTOR_OPT_CONSISTENT_HASHING"\n");
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1910 } else {
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1911 i_error("director(%s): Director version is too old for supporting director_consistent_hashing=yes",
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1912 conn->name);
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1913 return -1;
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1914 }
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1915 director_connection_send(conn, "DONE\n");
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1916 return 0;
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1917 }
b9df3d654710 director: Added director_consistent_hashing setting. Timo Sirainen <tss@iki.fi> parents: 18063 diff changeset	1918
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1919 static int director_connection_send_users(struct director_connection *conn)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1920 {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1921 struct user *user;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1922 int ret;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1923
20972 14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	1924 i_assert(conn->version_received);
14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	1925
21075 6a363cb51d7f director: Code cleanup - added user director_iterate_users_() wrappers. Timo Sirainen <timo.sirainen@dovecot.fi>* parents: 21074 diff changeset	1926 while ((user = director_iterate_users_next(conn->user_iter)) != NULL) {
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	1927 T_BEGIN {
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	1928 string_t *str = t_str_new(128);
11598 d3dfe9c271bc director: Don't send expired user records to remote servers. Timo Sirainen <tss@iki.fi> parents: 11586 diff changeset	1929
14310 7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	1930 str_printfa(str, "USER\t%u\t%s\t%u",
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	1931 user->username_hash,
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	1932 net_ip2addr(&user->host->ip),
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	1933 user->timestamp);
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	1934 if (user->weak)
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	1935 str_append(str, "\tw");
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	1936 str_append_c(str, '\n');
7a26c427fc78 director: Avoid user getting redirected to different servers near its expiration. Timo Sirainen <tss@iki.fi> parents: 14306 diff changeset	1937 director_connection_send(conn, str_c(str));
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1938 } T_END;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1939
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1940 if (o_stream_get_buffer_used_size(conn->output) >= OUTBUF_FLUSH_THRESHOLD) {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1941 if ((ret = o_stream_flush(conn->output)) <= 0) {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1942 /* continue later */
14405 168e3b5cb6e8 director: Changes to PING handling. Timo Sirainen <tss@iki.fi> parents: 14310 diff changeset	1943 timeout_reset(conn->to_ping);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1944 return ret;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1945 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1946 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1947 }
21075 6a363cb51d7f director: Code cleanup - added user director_iterate_users_() wrappers. Timo Sirainen <timo.sirainen@dovecot.fi>* parents: 21074 diff changeset	1948 director_iterate_users_deinit(&conn->user_iter);
20972 14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	1949 if (director_connection_send_done(conn) < 0)
14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	1950 return -1;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1951
16621 5ef62caea61b director: Update existing users' timestamps during handshake. Timo Sirainen <tss@iki.fi> parents: 16619 diff changeset	1952 if (conn->users_unsorted && conn->handshake_received) {
5ef62caea61b director: Update existing users' timestamps during handshake. Timo Sirainen <tss@iki.fi> parents: 16619 diff changeset	1953 /* we received remote's list of users before sending ours */
5ef62caea61b director: Update existing users' timestamps during handshake. Timo Sirainen <tss@iki.fi> parents: 16619 diff changeset	1954 conn->users_unsorted = FALSE;
21079 d6f399a7f672 director: Keep per-tag directory Aki Tuomi <aki.tuomi@dovecot.fi> parents: 21077 diff changeset	1955 mail_hosts_sort_users(conn->dir->mail_hosts);
16621 5ef62caea61b director: Update existing users' timestamps during handshake. Timo Sirainen <tss@iki.fi> parents: 16619 diff changeset	1956 }
5ef62caea61b director: Update existing users' timestamps during handshake. Timo Sirainen <tss@iki.fi> parents: 16619 diff changeset	1957
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1958 ret = o_stream_flush(conn->output);
14405 168e3b5cb6e8 director: Changes to PING handling. Timo Sirainen <tss@iki.fi> parents: 14310 diff changeset	1959 timeout_reset(conn->to_ping);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1960 return ret;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1961 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1962
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1963 static int director_connection_output(struct director_connection *conn)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1964 {
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1965 int ret;
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1966
20575 bceac5d8ae3b director: Added more debug information to "Ping timed out" error Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20295 diff changeset	1967 conn->last_output = ioloop_timeval;
14408 544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1968 if (conn->user_iter != NULL) {
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1969 /* still handshaking USER list */
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1970 o_stream_cork(conn->output);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1971 ret = director_connection_send_users(conn);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1972 o_stream_uncork(conn->output);
18662 27baf04f2b18 director: If we disconnect a director, pass the reason all the way to deinit's debug logging. Timo Sirainen <tss@iki.fi> parents: 18137 diff changeset	1973 if (ret < 0) {
27baf04f2b18 director: If we disconnect a director, pass the reason all the way to deinit's debug logging. Timo Sirainen <tss@iki.fi> parents: 18137 diff changeset	1974 director_connection_disconnected(&conn,
27baf04f2b18 director: If we disconnect a director, pass the reason all the way to deinit's debug logging. Timo Sirainen <tss@iki.fi> parents: 18137 diff changeset	1975 o_stream_get_error(conn->output));
27baf04f2b18 director: If we disconnect a director, pass the reason all the way to deinit's debug logging. Timo Sirainen <tss@iki.fi> parents: 18137 diff changeset	1976 } else {
14480 d9f33d78fa3d director: Make sure handshaking doesn't get stuck sending USERs. Timo Sirainen <tss@iki.fi> parents: 14479 diff changeset	1977 o_stream_set_flush_pending(conn->output, TRUE);
18662 27baf04f2b18 director: If we disconnect a director, pass the reason all the way to deinit's debug logging. Timo Sirainen <tss@iki.fi> parents: 18137 diff changeset	1978 }
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	1979 return ret;
14408 544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1980 }
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	1981 return o_stream_flush(conn->output);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1982 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1983
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1984 static struct director_connection *
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1985 director_connection_init_common(struct director *dir, int fd)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1986 {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1987 struct director_connection *conn;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1988
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1989 conn = i_new(struct director_connection, 1);
22252 8882a5cbe76d director: Use more accurate timestamps for handshake timeout logging Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22251 diff changeset	1990 conn->created = ioloop_timeval;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1991 conn->fd = fd;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1992 conn->dir = dir;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1993 conn->input = i_stream_create_fd(conn->fd, MAX_INBUF_SIZE, FALSE);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1994 conn->output = o_stream_create_fd(conn->fd, MAX_OUTBUF_SIZE, FALSE);
14681 ca37d1577291 Added o_stream_nsend() and related functions to make delayed error handling safer. Timo Sirainen <tss@iki.fi>* parents: 14674 diff changeset	1995 o_stream_set_no_error_handling(conn->output, TRUE);
14406 c760ac046203 director: List of director connections belongs to struct director. Timo Sirainen <tss@iki.fi> parents: 14405 diff changeset	1996 array_append(&dir->connections, &conn, 1);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1997 return conn;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1998 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	1999
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2000 static void director_connection_send_handshake(struct director_connection *conn)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2001 {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2002 director_connection_send(conn, t_strdup_printf(
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2003 "VERSION\t"DIRECTOR_VERSION_NAME"\t%u\t%u\n"
19294 d96595e2363b director: Log a warning if directors' clocks are too much out of sync. Timo Sirainen <tss@iki.fi> parents: 19293 diff changeset	2004 "ME\t%s\t%u\t%lld\n",
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2005 DIRECTOR_VERSION_MAJOR, DIRECTOR_VERSION_MINOR,
19294 d96595e2363b director: Log a warning if directors' clocks are too much out of sync. Timo Sirainen <tss@iki.fi> parents: 19293 diff changeset	2006 net_ip2addr(&conn->dir->self_ip), conn->dir->self_port,
d96595e2363b director: Log a warning if directors' clocks are too much out of sync. Timo Sirainen <tss@iki.fi> parents: 19293 diff changeset	2007 (long long)time(NULL)));
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2008 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2009
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2010 struct director_connection *
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2011 director_connection_init_in(struct director *dir, int fd,
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2012 const struct ip_addr *ip)
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2013 {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2014 struct director_connection *conn;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2015
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2016 conn = director_connection_init_common(dir, fd);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2017 conn->in = TRUE;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2018 conn->connected = TRUE;
22252 8882a5cbe76d director: Use more accurate timestamps for handshake timeout logging Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22251 diff changeset	2019 conn->connected_time = ioloop_timeval;
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2020 conn->name = i_strdup_printf("%s/in", net_ip2addr(ip));
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2021 conn->io = io_add(conn->fd, IO_READ, director_connection_input, conn);
22250 81a74bce2b07 director: Fix handshake timeout lengths Timo Sirainen <timo.sirainen@dovecot.fi> parents: 21842 diff changeset	2022 conn->to_ping = timeout_add(DIRECTOR_CONNECTION_ME_TIMEOUT_MSECS,
81a74bce2b07 director: Fix handshake timeout lengths Timo Sirainen <timo.sirainen@dovecot.fi> parents: 21842 diff changeset	2023 director_connection_init_timeout, conn);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2024
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2025 director_connection_send_handshake(conn);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2026 return conn;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2027 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2028
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2029 static void director_connection_connected(struct director_connection *conn)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2030 {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2031 int err;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2032
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2033 if ((err = net_geterror(conn->fd)) != 0) {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2034 i_error("director(%s): connect() failed: %s", conn->name,
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2035 strerror(err));
18662 27baf04f2b18 director: If we disconnect a director, pass the reason all the way to deinit's debug logging. Timo Sirainen <tss@iki.fi> parents: 18137 diff changeset	2036 director_connection_disconnected(&conn, strerror(err));
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2037 return;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2038 }
22252 8882a5cbe76d director: Use more accurate timestamps for handshake timeout logging Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22251 diff changeset	2039 conn->connected_time = ioloop_timeval;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2040 conn->connected = TRUE;
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	2041 o_stream_set_flush_callback(conn->output,
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	2042 director_connection_output, conn);
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2043
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2044 io_remove(&conn->io);
14484 25ca6b6d754a director: Adding 25c941423e42 patch yet again, now it seems to work right. Timo Sirainen <tss@iki.fi> parents: 14483 diff changeset	2045 conn->io = io_add(conn->fd, IO_READ, director_connection_input, conn);
25ca6b6d754a director: Adding 25c941423e42 patch yet again, now it seems to work right. Timo Sirainen <tss@iki.fi> parents: 14483 diff changeset	2046
14477 ea5b949a623b director: Increased timeout for sending USER data in handshake. Timo Sirainen <tss@iki.fi> parents: 14476 diff changeset	2047 timeout_remove(&conn->to_ping);
22250 81a74bce2b07 director: Fix handshake timeout lengths Timo Sirainen <timo.sirainen@dovecot.fi> parents: 21842 diff changeset	2048 conn->to_ping = timeout_add(DIRECTOR_CONNECTION_ME_TIMEOUT_MSECS,
14477 ea5b949a623b director: Increased timeout for sending USER data in handshake. Timo Sirainen <tss@iki.fi> parents: 14476 diff changeset	2049 director_connection_init_timeout, conn);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2050
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	2051 o_stream_cork(conn->output);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2052 director_connection_send_handshake(conn);
20972 14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	2053 director_connection_send_directors(conn);
14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	2054 o_stream_uncork(conn->output);
14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	2055 /* send the rest of the handshake after we've received the remote's
14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	2056 version number */
14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	2057 }
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2058
20972 14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	2059 static void director_finish_sending_handshake(struct director_connection *conn)
14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	2060 {
14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	2061 if (
14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	2062 conn->in) {
14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	2063 /* only outgoing connections send hosts & users */
14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	2064 return;
14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	2065 }
14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	2066 o_stream_cork(conn->output);
14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	2067 director_connection_send_hosts(conn);
14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	2068
14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	2069 i_assert(conn->user_iter == NULL);
21075 6a363cb51d7f director: Code cleanup - added user director_iterate_users_() wrappers. Timo Sirainen <timo.sirainen@dovecot.fi>* parents: 21074 diff changeset	2070 conn->user_iter = director_iterate_users_init(conn->dir);
6a363cb51d7f director: Code cleanup - added user director_iterate_users_() wrappers. Timo Sirainen <timo.sirainen@dovecot.fi>* parents: 21074 diff changeset	2071
14481 ce4e1bf7262d director: Another fix for stuck handshake. Timo Sirainen <tss@iki.fi> parents: 14480 diff changeset	2072 if (director_connection_send_users(conn) == 0)
ce4e1bf7262d director: Another fix for stuck handshake. Timo Sirainen <tss@iki.fi> parents: 14480 diff changeset	2073 o_stream_set_flush_pending(conn->output, TRUE);
20972 14f621e65819 director: Fix sending up/down state in handshakes. Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20971 diff changeset	2074
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	2075 o_stream_uncork(conn->output);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2076 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2077
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2078 struct director_connection *
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2079 director_connection_init_out(struct director *dir, int fd,
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2080 struct director_host *host)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2081 {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2082 struct director_connection *conn;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2083
14571 42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	2084 i_assert(!host->removed);
42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	2085
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2086 /* make sure we don't keep old sequence values across restarts */
16699 9531ec8afe8b director: Reset last-seen-sync-sequence after remote director restarts. Timo Sirainen <tss@iki.fi> parents: 16695 diff changeset	2087 director_host_restarted(host);
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2088
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2089 conn = director_connection_init_common(dir, fd);
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2090 conn->name = i_strdup_printf("%s/out", host->name);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2091 conn->host = host;
14571 42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	2092 director_host_ref(host);
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	2093 conn->io = io_add(conn->fd, IO_WRITE,
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2094 director_connection_connected, conn);
22250 81a74bce2b07 director: Fix handshake timeout lengths Timo Sirainen <timo.sirainen@dovecot.fi> parents: 21842 diff changeset	2095 conn->to_ping = timeout_add(DIRECTOR_CONNECTION_CONNECT_TIMEOUT_MSECS,
81a74bce2b07 director: Fix handshake timeout lengths Timo Sirainen <timo.sirainen@dovecot.fi> parents: 21842 diff changeset	2096 director_connection_init_timeout, conn);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2097 return conn;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2098 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2099
15132 27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	2100 void director_connection_deinit(struct director_connection **_conn,
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	2101 const char *remote_reason)
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2102 {
14406 c760ac046203 director: List of director connections belongs to struct director. Timo Sirainen <tss@iki.fi> parents: 14405 diff changeset	2103 struct director_connection const conns, conn = _conn;
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2104 struct director *dir = conn->dir;
14406 c760ac046203 director: List of director connections belongs to struct director. Timo Sirainen <tss@iki.fi> parents: 14405 diff changeset	2105 unsigned int i, count;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2106
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2107 *_conn = NULL;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2108
15326 48af47f2eb9c director: -D parameter now enables extensive debug logging. Timo Sirainen <tss@iki.fi> parents: 15324 diff changeset	2109 if (conn->host != NULL) {
48af47f2eb9c director: -D parameter now enables extensive debug logging. Timo Sirainen <tss@iki.fi> parents: 15324 diff changeset	2110 dir_debug("Disconnecting from %s: %s",
48af47f2eb9c director: -D parameter now enables extensive debug logging. Timo Sirainen <tss@iki.fi> parents: 15324 diff changeset	2111 conn->host->name, remote_reason);
15132 27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	2112 }
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	2113 if (*remote_reason != '\0' &&
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	2114 conn->minor_version >= DIRECTOR_VERSION_QUIT) {
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	2115 o_stream_send_str(conn->output, t_strdup_printf(
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	2116 "QUIT\t%s\n", remote_reason));
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	2117 }
12935 e9139f74c451 director: Improved debug/error logging. Timo Sirainen <tss@iki.fi> parents: 12934 diff changeset	2118
14406 c760ac046203 director: List of director connections belongs to struct director. Timo Sirainen <tss@iki.fi> parents: 14405 diff changeset	2119 conns = array_get(&dir->connections, &count);
c760ac046203 director: List of director connections belongs to struct director. Timo Sirainen <tss@iki.fi> parents: 14405 diff changeset	2120 for (i = 0; i < count; i++) {
c760ac046203 director: List of director connections belongs to struct director. Timo Sirainen <tss@iki.fi> parents: 14405 diff changeset	2121 if (conns[i] == conn) {
c760ac046203 director: List of director connections belongs to struct director. Timo Sirainen <tss@iki.fi> parents: 14405 diff changeset	2122 array_delete(&dir->connections, i, 1);
c760ac046203 director: List of director connections belongs to struct director. Timo Sirainen <tss@iki.fi> parents: 14405 diff changeset	2123 break;
c760ac046203 director: List of director connections belongs to struct director. Timo Sirainen <tss@iki.fi> parents: 14405 diff changeset	2124 }
c760ac046203 director: List of director connections belongs to struct director. Timo Sirainen <tss@iki.fi> parents: 14405 diff changeset	2125 }
c760ac046203 director: List of director connections belongs to struct director. Timo Sirainen <tss@iki.fi> parents: 14405 diff changeset	2126 i_assert(i < count);
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	2127 if (dir->left == conn) {
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2128 dir->left = NULL;
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	2129 /* if there is already another handshaked incoming connection,
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	2130 use it as the new "left" */
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	2131 director_assign_left(dir);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	2132 }
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2133 if (dir->right == conn)
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2134 dir->right = NULL;
14571 42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	2135 if (conn->host != NULL)
42cca8a1d179 director: Implemented ability to remove directors from a running ring. Timo Sirainen <tss@iki.fi> parents: 14570 diff changeset	2136 director_host_unref(conn->host);
11572 659bb1a26da4 director: Added initial testing framework and some debugging output. Timo Sirainen <tss@iki.fi> parents: 11571 diff changeset	2137
15132 27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	2138 if (conn->connect_request_to != NULL)
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	2139 director_host_unref(conn->connect_request_to);
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2140 if (conn->user_iter != NULL)
21075 6a363cb51d7f director: Code cleanup - added user director_iterate_users_() wrappers. Timo Sirainen <timo.sirainen@dovecot.fi>* parents: 21074 diff changeset	2141 director_iterate_users_deinit(&conn->user_iter);
14494 d27b743c9921 director: Delay disconnecting director after sending CONNECT command. Timo Sirainen <tss@iki.fi> parents: 14493 diff changeset	2142 if (conn->to_disconnect != NULL)
d27b743c9921 director: Delay disconnecting director after sending CONNECT command. Timo Sirainen <tss@iki.fi> parents: 14493 diff changeset	2143 timeout_remove(&conn->to_disconnect);
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	2144 if (conn->to_pong != NULL)
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	2145 timeout_remove(&conn->to_pong);
14405 168e3b5cb6e8 director: Changes to PING handling. Timo Sirainen <tss@iki.fi> parents: 14310 diff changeset	2146 timeout_remove(&conn->to_ping);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2147 if (conn->io != NULL)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2148 io_remove(&conn->io);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2149 i_stream_unref(&conn->input);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2150 o_stream_unref(&conn->output);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2151 if (close(conn->fd) < 0)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2152 i_error("close(director connection) failed: %m");
11569 467ca06a7dbe director: Outgoing director connections shouldn't be counted as master clients. Timo Sirainen <tss@iki.fi> parents: 11373 diff changeset	2153
467ca06a7dbe director: Outgoing director connections shouldn't be counted as master clients. Timo Sirainen <tss@iki.fi> parents: 11373 diff changeset	2154 if (conn->in)
467ca06a7dbe director: Outgoing director connections shouldn't be counted as master clients. Timo Sirainen <tss@iki.fi> parents: 11373 diff changeset	2155 master_service_client_connection_destroyed(master_service);
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2156 i_free(conn->name);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2157 i_free(conn);
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2158
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2159 if (dir->left == NULL \|\| dir->right == NULL) {
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2160 /* we aren't synced until we're again connected to a ring */
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2161 dir->sync_seq++;
13921 c70965e8b27d director: If request is timed out, log an error. Timo Sirainen <tss@iki.fi> parents: 13053 diff changeset	2162 director_set_ring_unsynced(dir);
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2163 }
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2164 }
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2165
18858 8bde19f080ad director: explicitly mark _disconnect() helper static to match proto Phil Carmody <phil@dovecot.fi> parents: 18729 diff changeset	2166 static void director_connection_disconnected(struct director_connection **_conn,
8bde19f080ad director: explicitly mark _disconnect() helper static to match proto Phil Carmody <phil@dovecot.fi> parents: 18729 diff changeset	2167 const char *reason)
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2168 {
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2169 struct director_connection conn = _conn;
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2170 struct director *dir = conn->dir;
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2171
22446 8bfe8a2fed69 director: Fix rapid reconnection on failed outgoing connections Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22311 diff changeset	2172 if ((conn->connected_time.tv_sec == 0 \|\|
8bfe8a2fed69 director: Fix rapid reconnection on failed outgoing connections Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22311 diff changeset	2173 conn->connected_time.tv_sec + DIRECTOR_SUCCESS_MIN_CONNECT_SECS > ioloop_time) &&
14570 40f958c7643b director: Don't crash with quickly disconnecting incoming director connections. Timo Sirainen <tss@iki.fi> parents: 14494 diff changeset	2174 conn->host != NULL) {
14432 366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	2175 /* connection didn't exist for very long, assume it has a
366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	2176 network problem */
366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	2177 conn->host->last_network_failure = ioloop_time;
366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	2178 }
366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	2179
18662 27baf04f2b18 director: If we disconnect a director, pass the reason all the way to deinit's debug logging. Timo Sirainen <tss@iki.fi> parents: 18137 diff changeset	2180 director_connection_deinit(_conn, reason);
14432 366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	2181 if (dir->right == NULL)
366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	2182 director_connect(dir);
366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	2183 }
366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	2184
15132 27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	2185 static void director_connection_reconnect(struct director_connection **_conn,
27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	2186 const char *reason)
14432 366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	2187 {
366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	2188 struct director_connection conn = _conn;
366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	2189 struct director *dir = conn->dir;
366b9e5fc85c director: Don't communicate with directors that recently sent invalid input. Timo Sirainen <tss@iki.fi> parents: 14431 diff changeset	2190
15132 27d3289e1f5c director: Improved logging related to disconnections. Timo Sirainen <tss@iki.fi> parents: 15131 diff changeset	2191 director_connection_deinit(_conn, reason);
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2192 if (dir->right == NULL)
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2193 director_connect(dir);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2194 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2195
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2196 void director_connection_send(struct director_connection *conn,
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2197 const char *data)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2198 {
21322 5ab8dc1a4a6f global: Change string position/length from unsigned int to size_t Timo Sirainen <timo.sirainen@dovecot.fi> parents: 21079 diff changeset	2199 size_t len = strlen(data);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2200 off_t ret;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2201
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2202 if (conn->output->closed \|\| !conn->connected)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2203 return;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2204
15326 48af47f2eb9c director: -D parameter now enables extensive debug logging. Timo Sirainen <tss@iki.fi> parents: 15324 diff changeset	2205 if (director_debug) T_BEGIN {
48af47f2eb9c director: -D parameter now enables extensive debug logging. Timo Sirainen <tss@iki.fi> parents: 15324 diff changeset	2206 const char const lines = t_strsplit(data, "\n");
48af47f2eb9c director: -D parameter now enables extensive debug logging. Timo Sirainen <tss@iki.fi> parents: 15324 diff changeset	2207 for (; lines[1] != NULL; lines++)
48af47f2eb9c director: -D parameter now enables extensive debug logging. Timo Sirainen <tss@iki.fi> parents: 15324 diff changeset	2208 dir_debug("output: %s: %s", conn->name, *lines);
48af47f2eb9c director: -D parameter now enables extensive debug logging. Timo Sirainen <tss@iki.fi> parents: 15324 diff changeset	2209 } T_END;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2210 ret = o_stream_send(conn->output, data, len);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2211 if (ret != (off_t)len) {
20264 0fd0fb05e2b3 global: Use [io]_stream_get_error() insted of %m Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19973 diff changeset	2212 if (ret < 0) {
0fd0fb05e2b3 global: Use [io]_stream_get_error() insted of %m Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19973 diff changeset	2213 i_error("director(%s): write() failed: %s", conn->name,
0fd0fb05e2b3 global: Use [io]_stream_get_error() insted of %m Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19973 diff changeset	2214 o_stream_get_error(conn->output));
0fd0fb05e2b3 global: Use [io]_stream_get_error() insted of %m Timo Sirainen <timo.sirainen@dovecot.fi> parents: 19973 diff changeset	2215 } else {
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2216 i_error("director(%s): Output buffer full, "
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2217 "disconnecting", conn->name);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2218 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2219 o_stream_close(conn->output);
18664 502755a1af5f director: Include useful statistics in process title. Timo Sirainen <tss@iki.fi> parents: 18663 diff changeset	2220 } else {
502755a1af5f director: Include useful statistics in process title. Timo Sirainen <tss@iki.fi> parents: 18663 diff changeset	2221 conn->dir->ring_traffic_output += len;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2222 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2223 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2224
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	2225 static void
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	2226 director_connection_ping_idle_timeout(struct director_connection *conn)
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2227 {
20575 bceac5d8ae3b director: Added more debug information to "Ping timed out" error Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20295 diff changeset	2228 string_t *str = t_str_new(128);
bceac5d8ae3b director: Added more debug information to "Ping timed out" error Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20295 diff changeset	2229
22253 9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	2230 str_printfa(str, "Ping timed out in %u secs, disconnecting (",
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	2231 DIRECTOR_CONNECTION_PING_IDLE_TIMEOUT_MSECS/1000);
9676f01a11df director: Log more connection state information on handshaking errors Timo Sirainen <timo.sirainen@dovecot.fi> parents: 22252 diff changeset	2232 director_connection_append_stats(conn, str);
20575 bceac5d8ae3b director: Added more debug information to "Ping timed out" error Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20295 diff changeset	2233 if (conn->handshake_received)
bceac5d8ae3b director: Added more debug information to "Ping timed out" error Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20295 diff changeset	2234 str_append(str, ", handshaked");
bceac5d8ae3b director: Added more debug information to "Ping timed out" error Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20295 diff changeset	2235 if (conn->synced)
bceac5d8ae3b director: Added more debug information to "Ping timed out" error Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20295 diff changeset	2236 str_append(str, ", synced");
bceac5d8ae3b director: Added more debug information to "Ping timed out" error Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20295 diff changeset	2237 str_append_c(str, ')');
bceac5d8ae3b director: Added more debug information to "Ping timed out" error Timo Sirainen <timo.sirainen@dovecot.fi> parents: 20295 diff changeset	2238 i_error("director(%s): %s", conn->name, str_c(str));
18662 27baf04f2b18 director: If we disconnect a director, pass the reason all the way to deinit's debug logging. Timo Sirainen <tss@iki.fi> parents: 18137 diff changeset	2239 director_connection_disconnected(&conn, "Ping timeout");
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2240 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2241
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	2242 static void director_connection_pong_timeout(struct director_connection *conn)
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	2243 {
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	2244 i_error("director(%s): PONG reply not received although other "
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	2245 "input keeps coming, disconnecting", conn->name);
18662 27baf04f2b18 director: If we disconnect a director, pass the reason all the way to deinit's debug logging. Timo Sirainen <tss@iki.fi> parents: 18137 diff changeset	2246 director_connection_disconnected(&conn, "Pong timeout");
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	2247 }
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	2248
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	2249 void director_connection_ping(struct director_connection *conn)
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2250 {
11586 e75dab14bb2f director: Send PINGs every 15 seconds for idling director connections. Timo Sirainen <tss@iki.fi> parents: 11585 diff changeset	2251 if (conn->ping_waiting)
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2252 return;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2253
14405 168e3b5cb6e8 director: Changes to PING handling. Timo Sirainen <tss@iki.fi> parents: 14310 diff changeset	2254 timeout_remove(&conn->to_ping);
14409 b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	2255 conn->to_ping = timeout_add(DIRECTOR_CONNECTION_PING_IDLE_TIMEOUT_MSECS,
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	2256 director_connection_ping_idle_timeout, conn);
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	2257 conn->to_pong = timeout_add(DIRECTOR_CONNECTION_PONG_TIMEOUT_MSECS,
b43ae3805f5f director: Redesigned connection handling and error handling. Timo Sirainen <tss@iki.fi> parents: 14408 diff changeset	2258 director_connection_pong_timeout, conn);
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2259 director_connection_send(conn, "PING\n");
11586 e75dab14bb2f director: Send PINGs every 15 seconds for idling director connections. Timo Sirainen <tss@iki.fi> parents: 11585 diff changeset	2260 conn->ping_waiting = TRUE;
11321 5f350b5ff6d9 Added initial implementation of a director process (for NFS users). Timo Sirainen <tss@iki.fi> parents: diff changeset	2261 }
11585 f0fb8151c6b4 director: A lot of fixes. Timo Sirainen <tss@iki.fi> parents: 11581 diff changeset	2262
f0fb8151c6b4 director: A lot of fixes. Timo Sirainen <tss@iki.fi> parents: 11581 diff changeset	2263 const char director_connection_get_name(struct director_connection conn)
f0fb8151c6b4 director: A lot of fixes. Timo Sirainen <tss@iki.fi> parents: 11581 diff changeset	2264 {
f0fb8151c6b4 director: A lot of fixes. Timo Sirainen <tss@iki.fi> parents: 11581 diff changeset	2265 return conn->name;
f0fb8151c6b4 director: A lot of fixes. Timo Sirainen <tss@iki.fi> parents: 11581 diff changeset	2266 }
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2267
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2268 struct director_host *
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2269 director_connection_get_host(struct director_connection *conn)
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2270 {
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2271 return conn->host;
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2272 }
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2273
14408 544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	2274 bool director_connection_is_handshaked(struct director_connection *conn)
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	2275 {
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	2276 return conn->handshake_received;
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	2277 }
544a8c4705e5 director: Handle all commands during handshake. Timo Sirainen <tss@iki.fi> parents: 14407 diff changeset	2278
18062 ade6dcace5cd doveadm director ring status shows now more information Timo Sirainen <tss@iki.fi> parents: 17419 diff changeset	2279 bool director_connection_is_synced(struct director_connection *conn)
ade6dcace5cd doveadm director ring status shows now more information Timo Sirainen <tss@iki.fi> parents: 17419 diff changeset	2280 {
ade6dcace5cd doveadm director ring status shows now more information Timo Sirainen <tss@iki.fi> parents: 17419 diff changeset	2281 return conn->synced;
ade6dcace5cd doveadm director ring status shows now more information Timo Sirainen <tss@iki.fi> parents: 17419 diff changeset	2282 }
ade6dcace5cd doveadm director ring status shows now more information Timo Sirainen <tss@iki.fi> parents: 17419 diff changeset	2283
14406 c760ac046203 director: List of director connections belongs to struct director. Timo Sirainen <tss@iki.fi> parents: 14405 diff changeset	2284 bool director_connection_is_incoming(struct director_connection *conn)
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2285 {
14406 c760ac046203 director: List of director connections belongs to struct director. Timo Sirainen <tss@iki.fi> parents: 14405 diff changeset	2286 return conn->in;
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2287 }
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2288
14431 084064444f89 director: Don't try to send the new SYNC parameter to old director versions. Timo Sirainen <tss@iki.fi> parents: 14409 diff changeset	2289 unsigned int
084064444f89 director: Don't try to send the new SYNC parameter to old director versions. Timo Sirainen <tss@iki.fi> parents: 14409 diff changeset	2290 director_connection_get_minor_version(struct director_connection *conn)
084064444f89 director: Don't try to send the new SYNC parameter to old director versions. Timo Sirainen <tss@iki.fi> parents: 14409 diff changeset	2291 {
084064444f89 director: Don't try to send the new SYNC parameter to old director versions. Timo Sirainen <tss@iki.fi> parents: 14409 diff changeset	2292 return conn->minor_version;
084064444f89 director: Don't try to send the new SYNC parameter to old director versions. Timo Sirainen <tss@iki.fi> parents: 14409 diff changeset	2293 }
084064444f89 director: Don't try to send the new SYNC parameter to old director versions. Timo Sirainen <tss@iki.fi> parents: 14409 diff changeset	2294
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2295 void director_connection_cork(struct director_connection *conn)
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2296 {
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2297 o_stream_cork(conn->output);
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2298 }
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2299
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2300 void director_connection_uncork(struct director_connection *conn)
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2301 {
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2302 o_stream_uncork(conn->output);
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2303 }
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2304
14405 168e3b5cb6e8 director: Changes to PING handling. Timo Sirainen <tss@iki.fi> parents: 14310 diff changeset	2305 void director_connection_set_synced(struct director_connection *conn,
168e3b5cb6e8 director: Changes to PING handling. Timo Sirainen <tss@iki.fi> parents: 14310 diff changeset	2306 bool synced)
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2307 {
14405 168e3b5cb6e8 director: Changes to PING handling. Timo Sirainen <tss@iki.fi> parents: 14310 diff changeset	2308 if (conn->synced == synced)
168e3b5cb6e8 director: Changes to PING handling. Timo Sirainen <tss@iki.fi> parents: 14310 diff changeset	2309 return;
168e3b5cb6e8 director: Changes to PING handling. Timo Sirainen <tss@iki.fi> parents: 14310 diff changeset	2310 conn->synced = synced;
168e3b5cb6e8 director: Changes to PING handling. Timo Sirainen <tss@iki.fi> parents: 14310 diff changeset	2311
168e3b5cb6e8 director: Changes to PING handling. Timo Sirainen <tss@iki.fi> parents: 14310 diff changeset	2312 /* switch ping timeout, unless we're already waiting for PONG */
168e3b5cb6e8 director: Changes to PING handling. Timo Sirainen <tss@iki.fi> parents: 14310 diff changeset	2313 if (conn->ping_waiting)
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2314 return;
a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2315
14405 168e3b5cb6e8 director: Changes to PING handling. Timo Sirainen <tss@iki.fi> parents: 14310 diff changeset	2316 director_connection_set_ping_timeout(conn);
11629 a07aa85f68c9 director: Lots of fixes. It should be pretty stable now. Timo Sirainen <tss@iki.fi> parents: 11598 diff changeset	2317 }

Mercurial > dovecot > core-2.2

annotate src/director/director-connection.c @ 22562:3af1ba6b5248