Mercurial > dovecot > core-2.2

annotate src/director/login-connection.c @ 18675:52cdf321fa07

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director: Added "authreply" socket type. This allows defining a socket, which receives auth replies. Director then adds the "host" field to it if it's missing and returns back the original string. The idea is that eventually a director ring could be running independently from Dovecot proxies.
author Timo Sirainen <tss@iki.fi>
date Wed, 13 May 2015 16:22:27 +0300
parents d54dc360cd3c
children aabfe48db1cf
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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Phil Carmody <phil@dovecot.fi>
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1 /* Copyright (c) 2010-2015 Dovecot authors, see the included COPYING file */
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2
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3 #include "lib.h"
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4 #include "ioloop.h"
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5 #include "net.h"
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6 #include "istream.h"
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7 #include "ostream.h"
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8 #include "llist.h"
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9 #include "master-service.h"
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10 #include "director.h"
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11 #include "director-request.h"
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12 #include "auth-connection.h"
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13 #include "login-connection.h"
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14
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15 #include <unistd.h>
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16
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17 #define AUTHREPLY_PROTOCOL_MAJOR_VERSION 1
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18 #define AUTHREPLY_PROTOCOL_MINOR_VERSION 0
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19
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20 struct login_connection {
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21 struct login_connection *prev, *next;
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22
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23 int refcount;
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24 enum login_connection_type type;
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25
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26 int fd;
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27 struct io *io;
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28 struct istream *input;
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29 struct ostream *output;
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30 struct auth_connection *auth;
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31 struct director *dir;
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32
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33 unsigned int handshaked:1;
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34 unsigned int destroyed:1;
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35 };
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36
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37 struct login_host_request {
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38 struct login_connection *conn;
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39 char *line, *username;
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40
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41 struct ip_addr local_ip;
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42 unsigned int local_port;
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43 unsigned int dest_port;
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44 bool director_proxy_maybe;
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45 };
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46
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47 static struct login_connection *login_connections;
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48
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49 static void auth_input_line(const char *line, void *context);
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50 static void login_connection_unref(struct login_connection **_conn);
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51
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52 static void login_connection_input(struct login_connection *conn)
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53 {
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54 struct ostream *output;
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55 unsigned char buf[4096];
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56 ssize_t ret;
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57
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58 ret = read(conn->fd, buf, sizeof(buf));
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59 if (ret <= 0) {
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60 if (ret < 0) {
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61 if (errno == EAGAIN)
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62 return;
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63 if (errno != ECONNRESET)
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64 i_error("read(login connection) failed: %m");
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65 }
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66 login_connection_deinit(&conn);
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67 return;
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68 }
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69 output = auth_connection_get_output(conn->auth);
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70 o_stream_nsend(output, buf, ret);
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71 }
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72
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73 static void login_connection_authreply_input(struct login_connection *conn)
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74 {
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75 const char *line;
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76
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77 while ((line = i_stream_read_next_line(conn->input)) != NULL) T_BEGIN {
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78 if (!conn->handshaked) {
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79 if (!version_string_verify(line, "director-authreply-client",
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80 AUTHREPLY_PROTOCOL_MAJOR_VERSION)) {
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81 i_error("authreply client sent invalid handshake: %s", line);
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82 login_connection_deinit(&conn);
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83 return;
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84 }
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85 conn->handshaked = TRUE;
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86 } else {
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87 auth_input_line(line, conn);
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88 }
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89 } T_END;
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90 if (conn->input->eof) {
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91 if (conn->input->stream_errno != 0 &&
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92 conn->input->stream_errno != ECONNRESET) {
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93 i_error("read(authreply connection) failed: %s",
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94 i_stream_get_error(conn->input));
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95 }
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96 login_connection_deinit(&conn);
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97 }
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98 }
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99
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100 static void
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101 login_connection_send_line(struct login_connection *conn, const char *line)
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102 {
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103 struct const_iovec iov[2];
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104
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105 if (conn->destroyed)
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106 return;
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107
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108 iov[0].iov_base = line;
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109 iov[0].iov_len = strlen(line);
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110 iov[1].iov_base = "\n";
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111 iov[1].iov_len = 1;
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112 o_stream_nsendv(conn->output, iov, N_ELEMENTS(iov));
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113 }
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114
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115 static bool login_host_request_is_self(struct login_host_request *request,
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116 const struct ip_addr *dest_ip)
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117 {
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118 if (!net_ip_compare(dest_ip, &request->local_ip))
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119 return FALSE;
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120 if (request->dest_port != 0 && request->local_port != 0 &&
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121 request->dest_port != request->local_port)
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122 return FALSE;
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123 return TRUE;
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124 }
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125
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126 static void
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127 login_host_callback(const struct ip_addr *ip, const char *errormsg,
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128 void *context)
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129 {
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130 struct login_host_request *request = context;
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131 struct director *dir = request->conn->dir;
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132 const char *line, *line_params;
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133 unsigned int secs;
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134
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135 if (ip == NULL) {
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136 if (strncmp(request->line, "OK\t", 3) == 0)
b135d723acf3 director: Don't assert-crash if PASS lookup fails.
Timo Sirainen <tss@iki.fi>
parents: 16614
diff changeset
137 line_params = request->line + 3;
b135d723acf3 director: Don't assert-crash if PASS lookup fails.
Timo Sirainen <tss@iki.fi>
parents: 16614
diff changeset
138 else if (strncmp(request->line, "PASS\t", 5) == 0)
b135d723acf3 director: Don't assert-crash if PASS lookup fails.
Timo Sirainen <tss@iki.fi>
parents: 16614
diff changeset
139 line_params = request->line + 5;
b135d723acf3 director: Don't assert-crash if PASS lookup fails.
Timo Sirainen <tss@iki.fi>
parents: 16614
diff changeset
140 else
b135d723acf3 director: Don't assert-crash if PASS lookup fails.
Timo Sirainen <tss@iki.fi>
parents: 16614
diff changeset
141 i_panic("BUG: Unexpected line: %s", request->line);
13921
c70965e8b27d director: If request is timed out, log an error.
Timo Sirainen <tss@iki.fi>
parents: 12782
diff changeset
142
c70965e8b27d director: If request is timed out, log an error.
Timo Sirainen <tss@iki.fi>
parents: 12782
diff changeset
143 i_error("director: User %s host lookup failed: %s",
c70965e8b27d director: If request is timed out, log an error.
Timo Sirainen <tss@iki.fi>
parents: 12782
diff changeset
144 request->username, errormsg);
16785
b135d723acf3 director: Don't assert-crash if PASS lookup fails.
Timo Sirainen <tss@iki.fi>
parents: 16614
diff changeset
145 line = t_strconcat("FAIL\t", t_strcut(line_params, '\t'),
13921
c70965e8b27d director: If request is timed out, log an error.
Timo Sirainen <tss@iki.fi>
parents: 12782
diff changeset
146 "\ttemp", NULL);
18498
c5cdf42e398a director: Implemented director_proxy_maybe passdb extra field.
Timo Sirainen <tss@iki.fi>
parents: 18137
diff changeset
147 } else if (request->director_proxy_maybe &&
c5cdf42e398a director: Implemented director_proxy_maybe passdb extra field.
Timo Sirainen <tss@iki.fi>
parents: 18137
diff changeset
148 login_host_request_is_self(request, ip)) {
c5cdf42e398a director: Implemented director_proxy_maybe passdb extra field.
Timo Sirainen <tss@iki.fi>
parents: 18137
diff changeset
149 line = request->line;
c5cdf42e398a director: Implemented director_proxy_maybe passdb extra field.
Timo Sirainen <tss@iki.fi>
parents: 18137
diff changeset
150 } else {
c5cdf42e398a director: Implemented director_proxy_maybe passdb extra field.
Timo Sirainen <tss@iki.fi>
parents: 18137
diff changeset
151 secs = dir->set->director_user_expire / 2;
c5cdf42e398a director: Implemented director_proxy_maybe passdb extra field.
Timo Sirainen <tss@iki.fi>
parents: 18137
diff changeset
152 line = t_strdup_printf("%s\thost=%s\tproxy_refresh=%u",
c5cdf42e398a director: Implemented director_proxy_maybe passdb extra field.
Timo Sirainen <tss@iki.fi>
parents: 18137
diff changeset
153 request->line, net_ip2addr(ip), secs);
13921
c70965e8b27d director: If request is timed out, log an error.
Timo Sirainen <tss@iki.fi>
parents: 12782
diff changeset
154 }
c70965e8b27d director: If request is timed out, log an error.
Timo Sirainen <tss@iki.fi>
parents: 12782
diff changeset
155 login_connection_send_line(request->conn, line);
11321
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
156
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
157 login_connection_unref(&request->conn);
13921
c70965e8b27d director: If request is timed out, log an error.
Timo Sirainen <tss@iki.fi>
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diff changeset
158 i_free(request->username);
11321
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
159 i_free(request->line);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
160 i_free(request);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
161 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
162
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
163 static void auth_input_line(const char *line, void *context)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
164 {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
165 struct login_connection *conn = context;
18498
c5cdf42e398a director: Implemented director_proxy_maybe passdb extra field.
Timo Sirainen <tss@iki.fi>
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diff changeset
166 struct login_host_request *request, temp_request;
18067
a7e830b9b967 director: Added support for backend cluster "tags".
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diff changeset
167 const char *const *args, *line_params, *username = NULL, *tag = "";
11321
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diff changeset
168 bool proxy = FALSE, host = FALSE;
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Timo Sirainen <tss@iki.fi>
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diff changeset
169
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Timo Sirainen <tss@iki.fi>
parents:
diff changeset
170 if (line == NULL) {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
171 /* auth connection died -> kill also this login connection */
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
172 login_connection_deinit(&conn);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
173 return;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
174 }
18675
52cdf321fa07 director: Added "authreply" socket type.
Timo Sirainen <tss@iki.fi>
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diff changeset
175 if (conn->type != LOGIN_CONNECTION_TYPE_USERDB &&
52cdf321fa07 director: Added "authreply" socket type.
Timo Sirainen <tss@iki.fi>
parents: 18670
diff changeset
176 strncmp(line, "OK\t", 3) == 0)
11714
1683324ac632 director: Added support for LMTP proxying.
Timo Sirainen <tss@iki.fi>
parents: 11430
diff changeset
177 line_params = line + 3;
18675
52cdf321fa07 director: Added "authreply" socket type.
Timo Sirainen <tss@iki.fi>
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diff changeset
178 else if (conn->type == LOGIN_CONNECTION_TYPE_USERDB &&
52cdf321fa07 director: Added "authreply" socket type.
Timo Sirainen <tss@iki.fi>
parents: 18670
diff changeset
179 strncmp(line, "PASS\t", 5) == 0)
11714
1683324ac632 director: Added support for LMTP proxying.
Timo Sirainen <tss@iki.fi>
parents: 11430
diff changeset
180 line_params = line + 5;
1683324ac632 director: Added support for LMTP proxying.
Timo Sirainen <tss@iki.fi>
parents: 11430
diff changeset
181 else {
11321
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
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diff changeset
182 login_connection_send_line(conn, line);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
183 return;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
184 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
185
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
186 /* OK <id> [<parameters>] */
14471
fc8031c5e691 Use t_strsplit_tab() wherever possible
Timo Sirainen <tss@iki.fi>
parents: 14133
diff changeset
187 args = t_strsplit_tab(line_params);
11321
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Timo Sirainen <tss@iki.fi>
parents:
diff changeset
188 if (*args != NULL) {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
189 /* we should always get here, but in case we don't just
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
190 forward as-is and let login process handle the error. */
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
191 args++;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
192 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
193
18498
c5cdf42e398a director: Implemented director_proxy_maybe passdb extra field.
Timo Sirainen <tss@iki.fi>
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diff changeset
194 memset(&temp_request, 0, sizeof(temp_request));
11321
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
195 for (; *args != NULL; args++) {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
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diff changeset
196 if (strncmp(*args, "proxy", 5) == 0 &&
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
197 ((*args)[5] == '=' || (*args)[5] == '\0'))
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
198 proxy = TRUE;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
199 else if (strncmp(*args, "host=", 5) == 0)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
200 host = TRUE;
18498
c5cdf42e398a director: Implemented director_proxy_maybe passdb extra field.
Timo Sirainen <tss@iki.fi>
parents: 18137
diff changeset
201 else if (strncmp(*args, "lip=", 4) == 0) {
c5cdf42e398a director: Implemented director_proxy_maybe passdb extra field.
Timo Sirainen <tss@iki.fi>
parents: 18137
diff changeset
202 if (net_addr2ip((*args) + 4, &temp_request.local_ip) < 0)
18503
333533e2d231 director: Log error if auth sends invalid lip/lport/port parameter.
Timo Sirainen <tss@iki.fi>
parents: 18498
diff changeset
203 i_error("auth sent invalid lip field: %s", (*args) + 6);
18498
c5cdf42e398a director: Implemented director_proxy_maybe passdb extra field.
Timo Sirainen <tss@iki.fi>
parents: 18137
diff changeset
204 } else if (strncmp(*args, "lport=", 6) == 0) {
c5cdf42e398a director: Implemented director_proxy_maybe passdb extra field.
Timo Sirainen <tss@iki.fi>
parents: 18137
diff changeset
205 if (str_to_uint((*args) + 6, &temp_request.local_port) < 0)
18503
333533e2d231 director: Log error if auth sends invalid lip/lport/port parameter.
Timo Sirainen <tss@iki.fi>
parents: 18498
diff changeset
206 i_error("auth sent invalid lport field: %s", (*args) + 6);
18498
c5cdf42e398a director: Implemented director_proxy_maybe passdb extra field.
Timo Sirainen <tss@iki.fi>
parents: 18137
diff changeset
207 } else if (strncmp(*args, "port=", 5) == 0) {
c5cdf42e398a director: Implemented director_proxy_maybe passdb extra field.
Timo Sirainen <tss@iki.fi>
parents: 18137
diff changeset
208 if (str_to_uint((*args) + 5, &temp_request.dest_port) < 0)
18503
333533e2d231 director: Log error if auth sends invalid lip/lport/port parameter.
Timo Sirainen <tss@iki.fi>
parents: 18498
diff changeset
209 i_error("auth sent invalid port field: %s", (*args) + 6);
18498
c5cdf42e398a director: Implemented director_proxy_maybe passdb extra field.
Timo Sirainen <tss@iki.fi>
parents: 18137
diff changeset
210 } else if (strncmp(*args, "destuser=", 9) == 0)
11321
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
211 username = *args + 9;
18067
a7e830b9b967 director: Added support for backend cluster "tags".
Timo Sirainen <tss@iki.fi>
parents: 17467
diff changeset
212 else if (strncmp(*args, "director_tag=", 13) == 0)
a7e830b9b967 director: Added support for backend cluster "tags".
Timo Sirainen <tss@iki.fi>
parents: 17467
diff changeset
213 tag = *args + 13;
18498
c5cdf42e398a director: Implemented director_proxy_maybe passdb extra field.
Timo Sirainen <tss@iki.fi>
parents: 18137
diff changeset
214 else if (strncmp(*args, "director_proxy_maybe", 20) == 0 &&
c5cdf42e398a director: Implemented director_proxy_maybe passdb extra field.
Timo Sirainen <tss@iki.fi>
parents: 18137
diff changeset
215 ((*args)[20] == '=' || (*args)[20] == '\0'))
c5cdf42e398a director: Implemented director_proxy_maybe passdb extra field.
Timo Sirainen <tss@iki.fi>
parents: 18137
diff changeset
216 temp_request.director_proxy_maybe = TRUE;
11321
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
217 else if (strncmp(*args, "user=", 5) == 0) {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
218 if (username == NULL)
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
219 username = *args + 5;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
220 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
221 }
18498
c5cdf42e398a director: Implemented director_proxy_maybe passdb extra field.
Timo Sirainen <tss@iki.fi>
parents: 18137
diff changeset
222 if ((!proxy && !temp_request.director_proxy_maybe) ||
c5cdf42e398a director: Implemented director_proxy_maybe passdb extra field.
Timo Sirainen <tss@iki.fi>
parents: 18137
diff changeset
223 host || username == NULL) {
17467
899cf87a687c director: Fixed crash if master_user_separator is set, but we didn't do a proxy lookup.
Timo Sirainen <tss@iki.fi>
parents: 17130
diff changeset
224 login_connection_send_line(conn, line);
899cf87a687c director: Fixed crash if master_user_separator is set, but we didn't do a proxy lookup.
Timo Sirainen <tss@iki.fi>
parents: 17130
diff changeset
225 return;
899cf87a687c director: Fixed crash if master_user_separator is set, but we didn't do a proxy lookup.
Timo Sirainen <tss@iki.fi>
parents: 17130
diff changeset
226 }
11321
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
227 if (*conn->dir->set->master_user_separator != '\0') {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
228 /* with master user logins we still want to use only the
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
229 login username */
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
230 username = t_strcut(username,
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
231 *conn->dir->set->master_user_separator);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
232 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
233
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
234 /* we need to add the host. the lookup might be asynchronous */
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
235 request = i_new(struct login_host_request, 1);
18498
c5cdf42e398a director: Implemented director_proxy_maybe passdb extra field.
Timo Sirainen <tss@iki.fi>
parents: 18137
diff changeset
236 *request = temp_request;
11321
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
237 request->conn = conn;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
238 request->line = i_strdup(line);
13921
c70965e8b27d director: If request is timed out, log an error.
Timo Sirainen <tss@iki.fi>
parents: 12782
diff changeset
239 request->username = i_strdup(username);
11321
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
240
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
241 conn->refcount++;
18067
a7e830b9b967 director: Added support for backend cluster "tags".
Timo Sirainen <tss@iki.fi>
parents: 17467
diff changeset
242 director_request(conn->dir, username, tag, login_host_callback, request);
11321
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
243 }
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
244
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
245 struct login_connection *
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
246 login_connection_init(struct director *dir, int fd,
18675
52cdf321fa07 director: Added "authreply" socket type.
Timo Sirainen <tss@iki.fi>
parents: 18670
diff changeset
247 struct auth_connection *auth,
52cdf321fa07 director: Added "authreply" socket type.
Timo Sirainen <tss@iki.fi>
parents: 18670
diff changeset
248 enum login_connection_type type)
11321
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
249 {
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
250 struct login_connection *conn;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
251
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
252 conn = i_new(struct login_connection, 1);
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
253 conn->refcount = 1;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
254 conn->fd = fd;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
255 conn->dir = dir;
5f350b5ff6d9 Added initial implementation of a director process (for NFS users).
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
256 conn->output = o_stream_create_fd(conn->fd, (size_t)-1, FALSE);
14681
ca37d1577291 Added o_stream_nsend*() and related functions to make delayed error handling safer.
Timo Sirainen <tss@iki.fi>
parents: 14471
diff changeset
257 o_stream_set_no_error_handling(conn->output, TRUE);
18675
52cdf321fa07 director: Added "authreply" socket type.
Timo Sirainen <tss@iki.fi>
parents: 18670
diff changeset
258 if (type != LOGIN_CONNECTION_TYPE_AUTHREPLY) {
52cdf321fa07 director: Added "authreply" socket type.
Timo Sirainen <tss@iki.fi>
parents: 18670
diff changeset
259 i_assert(auth != NULL);
52cdf321fa07 director: Added "authreply" socket type.
Timo Sirainen <tss@iki.fi>
parents: 18670
diff changeset
260 conn->auth = auth;
52cdf321fa07 director: Added "authreply" socket type.
Timo Sirainen <tss@iki.fi>
parents: 18670
diff changeset
261 conn->io = io_add(conn->fd, IO_READ,
52cdf321fa07 director: Added "authreply" socket type.
Timo Sirainen <tss@iki.fi>
parents: 18670
diff changeset
262 login_connection_input, conn);
52cdf321fa07 director: Added "authreply" socket type.
Timo Sirainen <tss@iki.fi>
parents: 18670
diff changeset
263 auth_connection_set_callback(conn->auth, auth_input_line, conn);
52cdf321fa07 director: Added "authreply" socket type.
Timo Sirainen <tss@iki.fi>
parents: 18670
diff changeset
264 } else {
52cdf321fa07 director: Added "authreply" socket type.
Timo Sirainen <tss@iki.fi>
parents: 18670
diff changeset
265 i_assert(auth == NULL);
52cdf321fa07 director: Added "authreply" socket type.
Timo Sirainen <tss@iki.fi>
parents: 18670
diff changeset
266 conn->input = i_stream_create_fd(conn->fd, IO_BLOCK_SIZE, FALSE);
52cdf321fa07 director: Added "authreply" socket type.
Timo Sirainen <tss@iki.fi>
parents: 18670
diff changeset
267 conn->io = io_add(conn->fd, IO_READ,
52cdf321fa07 director: Added "authreply" socket type.
Timo Sirainen <tss@iki.fi>
parents: 18670
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268 login_connection_authreply_input, conn);
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269 o_stream_nsend_str(conn->output, t_strdup_printf(
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270 "VERSION\tdirector-authreply-server\t%d\t%d\n",
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271 AUTHREPLY_PROTOCOL_MAJOR_VERSION,
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272 AUTHREPLY_PROTOCOL_MINOR_VERSION));
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273 }
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274 conn->type = type;
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275
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276 DLLIST_PREPEND(&login_connections, conn);
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277 return conn;
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278 }
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279
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280 void login_connection_deinit(struct login_connection **_conn)
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281 {
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282 struct login_connection *conn = *_conn;
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283
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284 *_conn = NULL;
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285
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286 if (conn->destroyed)
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287 return;
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288 conn->destroyed = TRUE;
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289
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290 DLLIST_REMOVE(&login_connections, conn);
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291 io_remove(&conn->io);
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292 if (conn->input != NULL)
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293 i_stream_destroy(&conn->input);
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294 o_stream_destroy(&conn->output);
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295 if (close(conn->fd) < 0)
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296 i_error("close(login connection) failed: %m");
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297 conn->fd = -1;
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298
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299 if (conn->auth != NULL)
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300 auth_connection_deinit(&conn->auth);
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301 login_connection_unref(&conn);
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302
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303 master_service_client_connection_destroyed(master_service);
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304 }
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305
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306 static void login_connection_unref(struct login_connection **_conn)
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307 {
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308 struct login_connection *conn = *_conn;
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309
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310 *_conn = NULL;
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311
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312 i_assert(conn->refcount > 0);
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313 if (--conn->refcount == 0)
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314 i_free(conn);
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315 }
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316
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317 void login_connections_deinit(void)
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318 {
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319 while (login_connections != NULL) {
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320 struct login_connection *conn = login_connections;
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321
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322 login_connection_deinit(&conn);
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323 }
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324 }