Mercurial > dovecot > core-2.2

annotate src/director/auth-connection.c @ 11321:5f350b5ff6d9 HEAD

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added initial implementation of a director process (for NFS users). There are still some unimplemented features and bugs. Also changing mail server list doesn't yet make sure that other directors won't assign the same user to a different server at the same time.
author Timo Sirainen <tss@iki.fi>
date Wed, 19 May 2010 09:56:49 +0200
parents
children a07aa85f68c9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
11321
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
1 /* Copyright (c) 2010 Dovecot authors, see the included COPYING file */
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
2
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
3 #include "lib.h"
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
4 #include "ioloop.h"
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
5 #include "istream.h"
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
6 #include "ostream.h"
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
7 #include "network.h"
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
8 #include "llist.h"
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
9 #include "safe-memset.h"
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
10 #include "auth-client-interface.h"
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
11 #include "auth-connection.h"
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
12
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
13 #include <unistd.h>
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
14
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
15 struct auth_connection {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
16 struct auth_connection *prev, *next;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
17
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
18 char *path;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
19 int fd;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
20 struct io *io;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
21 struct istream *input;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
22 struct ostream *output;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
23
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
24 auth_input_callback *callback;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
25 void *context;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
26 };
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
27
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
28 static struct auth_connection *auth_connections;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
29
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
30 static void auth_connection_input(struct auth_connection *conn)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
31 {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
32 char *line;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
33
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
34 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
35 case 0:
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
36 return;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
37 case -1:
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
38 /* disconnected */
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
39 auth_connection_deinit(&conn);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
40 return;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
41 case -2:
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
42 /* buffer full */
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
43 i_error("BUG: Auth server sent us more than %d bytes",
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
44 (int)AUTH_CLIENT_MAX_LINE_LENGTH);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
45 auth_connection_deinit(&conn);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
46 return;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
47 }
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 while ((line = i_stream_next_line(conn->input)) != NULL) {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
50 T_BEGIN {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
51 conn->callback(line, conn->context);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
52 safe_memset(line, 0, strlen(line));
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
53 } T_END;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
54 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
55 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
56
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
57 struct auth_connection *auth_connection_init(const char *path)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
58 {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
59 struct auth_connection *conn;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
60
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
61 conn = i_new(struct auth_connection, 1);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
62 conn->fd = -1;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
63 conn->path = i_strdup(path);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
64 DLLIST_PREPEND(&auth_connections, conn);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
65 return conn;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
66 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
67
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
68 void auth_connection_set_callback(struct auth_connection *conn,
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
69 auth_input_callback *callback, void *context)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
70 {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
71 conn->callback = callback;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
72 conn->context = context;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
73 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
74
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
75 int auth_connection_connect(struct auth_connection *conn)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
76 {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
77 i_assert(conn->fd == -1);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
78
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
79 conn->fd = net_connect_unix_with_retries(conn->path, 1000);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
80 if (conn->fd == -1) {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
81 i_error("connect(%s) failed: %m", conn->path);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
82 return -1;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
83 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
84
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
85 conn->input = i_stream_create_fd(conn->fd, AUTH_CLIENT_MAX_LINE_LENGTH,
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
86 FALSE);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
87 conn->output = o_stream_create_fd(conn->fd, (size_t)-1, FALSE);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
88 conn->io = io_add(conn->fd, IO_READ, auth_connection_input, conn);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
89 return 0;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
90 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
91
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
92 void auth_connection_deinit(struct auth_connection **_conn)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
93 {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
94 struct auth_connection *conn = *_conn;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
95
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
96 *_conn = NULL;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
97
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
98 DLLIST_REMOVE(&auth_connections, conn);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
99 if (conn->fd != -1) {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
100 io_remove(&conn->io);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
101 i_stream_unref(&conn->input);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
102 o_stream_unref(&conn->output);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
103
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
104 if (close(conn->fd) < 0)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
105 i_error("close(auth connection) failed: %m");
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
106 conn->callback(NULL, conn->context);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
107 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
108 i_free(conn->path);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
109 i_free(conn);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
110 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
111
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
112 void auth_connection_send(struct auth_connection *conn,
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
113 const void *data, size_t size)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
114 {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
115 i_assert(conn->fd != -1);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
116
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
117 (void)o_stream_send(conn->output, data, size);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
118 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
119
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
120 void auth_connections_deinit(void)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
121 {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
122 while (auth_connections != NULL) {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
123 struct auth_connection *conn = auth_connections;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
124
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
125 auth_connection_deinit(&conn);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
126 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
127 }