Mercurial > dovecot > original-hg > dovecot-1.2
annotate src/master/login-process.c @ 4197:c3ded5b815aa HEAD
If we have plugins set and imap_capability unset, figure out the IMAP
capabilities automatically by running imap binary at startup. The generated
capability list isn't updated until Dovecot is restarted completely, so if
you add or remove IMAP plugins you should restart.
| author | Timo Sirainen <tss@iki.fi> |
|---|---|
| date | Fri, 14 Apr 2006 21:20:54 +0300 |
| parents | f60d73c96618 |
| children | 3e542f308cb5 |
| rev | line source |
|---|---|
| 0 | 1 /* Copyright (C) 2002 Timo Sirainen */ |
| 2 | |
| 3 #include "common.h" | |
|
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4 #include "ioloop.h" |
| 0 | 5 #include "network.h" |
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6 #include "ostream.h" |
| 0 | 7 #include "fdpass.h" |
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8 #include "fd-close-on-exec.h" |
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9 #include "env-util.h" |
| 0 | 10 #include "restrict-access.h" |
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11 #include "restrict-process-size.h" |
| 0 | 12 #include "login-process.h" |
| 13 #include "auth-process.h" | |
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14 #include "mail-process.h" |
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15 #include "master-login-interface.h" |
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16 #include "log.h" |
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17 #include "ssl-init.h" |
| 0 | 18 |
| 19 #include <unistd.h> | |
| 20 #include <syslog.h> | |
| 21 | |
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22 struct login_process { |
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23 struct login_group *group; |
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24 struct login_process *prev_nonlisten, *next_nonlisten; |
| 0 | 25 int refcount; |
| 26 | |
| 27 pid_t pid; | |
| 28 int fd; | |
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29 struct io *io; |
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30 struct ostream *output; |
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31 unsigned int initialized:1; |
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32 unsigned int listening:1; |
| 0 | 33 unsigned int destroyed:1; |
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34 }; |
| 0 | 35 |
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36 struct login_auth_request { |
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37 struct login_process *process; |
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38 unsigned int tag; |
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39 |
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40 unsigned int login_tag; |
| 0 | 41 int fd; |
| 42 | |
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43 struct ip_addr local_ip, remote_ip; |
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44 }; |
| 0 | 45 |
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46 static unsigned int auth_id_counter, login_pid_counter; |
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47 static struct timeout *to; |
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48 static struct io *io_listen; |
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49 static bool logins_stalled = FALSE; |
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50 |
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51 static struct hash_table *processes; |
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52 static struct login_group *login_groups; |
| 0 | 53 |
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54 static void login_process_destroy(struct login_process *p); |
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55 static void login_process_unref(struct login_process *p); |
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56 static bool login_process_init_group(struct login_process *p); |
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57 static void login_processes_start_missing(void *context); |
| 0 | 58 |
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59 static void login_group_create(struct settings *set) |
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60 { |
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61 struct login_group *group; |
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62 |
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63 group = i_new(struct login_group, 1); |
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64 group->set = set; |
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65 group->process_type = set->protocol == MAIL_PROTOCOL_IMAP ? |
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66 PROCESS_TYPE_IMAP : PROCESS_TYPE_POP3; |
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67 |
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68 group->next = login_groups; |
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69 login_groups = group; |
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70 } |
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71 |
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72 static void login_group_destroy(struct login_group *group) |
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73 { |
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74 i_free(group); |
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75 } |
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76 |
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77 void auth_master_callback(const char *user, const char *const *args, |
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78 void *context) |
| 0 | 79 { |
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80 struct login_auth_request *request = context; |
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81 struct master_login_reply master_reply; |
| 2329 | 82 ssize_t ret; |
| 0 | 83 |
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84 if (user == NULL) |
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85 master_reply.success = FALSE; |
| 0 | 86 else { |
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87 struct login_group *group = request->process->group; |
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88 |
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89 t_push(); |
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90 master_reply.success = |
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91 create_mail_process(group->process_type, group->set, |
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92 request->fd, &request->local_ip, |
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93 &request->remote_ip, user, args, |
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94 FALSE); |
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95 t_pop(); |
| 0 | 96 } |
| 97 | |
| 98 /* reply to login */ | |
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99 master_reply.tag = request->login_tag; |
| 0 | 100 |
| 2329 | 101 ret = o_stream_send(request->process->output, &master_reply, |
| 102 sizeof(master_reply)); | |
| 103 if (ret != sizeof(master_reply)) { | |
| 104 if (ret >= 0) { | |
| 105 i_warning("Login process %s transmit buffer full, " | |
| 106 "killing..", dec2str(request->process->pid)); | |
| 107 } | |
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108 login_process_destroy(request->process); |
| 2329 | 109 } |
| 0 | 110 |
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111 if (close(request->fd) < 0) |
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112 i_error("close(mail client) failed: %m"); |
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113 login_process_unref(request->process); |
| 0 | 114 i_free(request); |
| 115 } | |
| 116 | |
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117 static void login_process_mark_nonlistening(struct login_process *p) |
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118 { |
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119 if (!p->listening) { |
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120 i_error("login: received another \"not listening\" " |
| 1338 | 121 "notification (if you can't login at all, " |
| 122 "see src/lib/fdpass.c)"); | |
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123 return; |
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124 } |
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125 |
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126 p->listening = FALSE; |
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127 |
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128 if (p->group != NULL) { |
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129 p->group->listening_processes--; |
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130 p->prev_nonlisten = p->group->newest_nonlisten_process; |
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131 |
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132 if (p->group->newest_nonlisten_process != NULL) |
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133 p->group->newest_nonlisten_process->next_nonlisten = p; |
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134 p->group->newest_nonlisten_process = p; |
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135 |
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136 if (p->group->oldest_nonlisten_process == NULL) |
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137 p->group->oldest_nonlisten_process = p; |
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138 } |
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139 } |
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140 |
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141 static void login_process_groups_create(void) |
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142 { |
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143 struct server_settings *server; |
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144 |
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145 for (server = settings_root; server != NULL; server = server->next) { |
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146 if (server->imap != NULL) |
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147 login_group_create(server->imap); |
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148 if (server->pop3 != NULL) |
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149 login_group_create(server->pop3); |
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150 } |
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151 } |
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152 |
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153 static struct login_group * |
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154 login_group_process_find(const char *name, enum mail_protocol protocol) |
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155 { |
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156 struct login_group *group; |
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157 |
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158 if (login_groups == NULL) |
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159 login_process_groups_create(); |
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160 |
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161 for (group = login_groups; group != NULL; group = group->next) { |
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162 if (strcmp(group->set->server->name, name) == 0 && |
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163 group->set->protocol == protocol) |
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164 return group; |
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165 } |
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166 |
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167 return NULL; |
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168 } |
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169 |
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170 static bool login_process_read_group(struct login_process *p) |
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171 { |
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172 struct login_group *group; |
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173 const char *name, *proto; |
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174 char buf[256]; |
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175 enum mail_protocol protocol; |
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176 unsigned int len; |
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177 ssize_t ret; |
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178 |
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179 /* read length */ |
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180 ret = read(p->fd, buf, 1); |
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181 if (ret != 1) |
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182 len = 0; |
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183 else { |
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184 len = buf[0]; |
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185 if (len >= sizeof(buf)) { |
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186 i_error("login: Server name length too large"); |
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187 return FALSE; |
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188 } |
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189 |
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190 ret = read(p->fd, buf, len); |
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191 } |
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192 |
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193 if (ret < 0) |
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194 i_error("login: read() failed: %m"); |
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195 else if (len == 0 || (size_t)ret != len) |
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196 i_error("login: Server name wasn't sent"); |
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197 else { |
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198 name = t_strndup(buf, len); |
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199 proto = strchr(name, '/'); |
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200 if (proto == NULL) { |
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201 proto = name; |
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202 name = "default"; |
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203 } else { |
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204 name = t_strdup_until(name, proto++); |
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205 } |
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206 |
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207 if (strcmp(proto, "imap") == 0) |
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208 protocol = MAIL_PROTOCOL_IMAP; |
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209 else if (strcmp(proto, "pop3") == 0) |
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210 protocol = MAIL_PROTOCOL_IMAP; |
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211 else { |
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212 i_error("login: Unknown protocol '%s'", proto); |
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213 return FALSE; |
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214 } |
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215 |
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216 group = login_group_process_find(name, protocol); |
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217 if (group == NULL) { |
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218 i_error("login: Unknown server name '%s'", name); |
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219 return FALSE; |
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220 } |
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221 |
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222 p->group = group; |
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223 return login_process_init_group(p); |
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224 } |
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225 return FALSE; |
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226 } |
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227 |
|
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228 static void login_process_input(void *context) |
| 0 | 229 { |
|
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230 struct login_process *p = context; |
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231 struct auth_process *auth_process; |
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232 struct login_auth_request *authreq; |
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233 struct master_login_request req; |
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234 int client_fd; |
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235 ssize_t ret; |
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236 |
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237 if (p->group == NULL) { |
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238 /* we want to read the group */ |
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239 if (!login_process_read_group(p)) |
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240 login_process_destroy(p); |
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241 return; |
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242 } |
| 0 | 243 |
| 244 ret = fd_read(p->fd, &req, sizeof(req), &client_fd); | |
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245 if (ret >= (ssize_t)sizeof(req.version) && |
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246 req.version != MASTER_LOGIN_PROTOCOL_VERSION) { |
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247 i_error("login: Protocol version mismatch " |
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248 "(mixed old and new binaries?)"); |
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249 login_process_destroy(p); |
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250 return; |
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251 } |
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252 |
| 0 | 253 if (ret != sizeof(req)) { |
| 254 if (ret == 0) { | |
| 255 /* disconnected, ie. the login process died */ | |
| 256 } else if (ret > 0) { | |
| 257 /* req wasn't fully read */ | |
| 258 i_error("login: fd_read() couldn't read all req"); | |
| 259 } else { | |
| 260 i_error("login: fd_read() failed: %m"); | |
| 261 } | |
| 262 | |
|
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263 if (client_fd != -1) { |
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264 if (close(client_fd) < 0) |
|
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265 i_error("close(mail client) failed: %m"); |
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266 } |
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|
267 |
| 0 | 268 login_process_destroy(p); |
| 269 return; | |
| 270 } | |
| 271 | |
|
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272 if (client_fd == -1) { |
|
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273 /* just a notification that the login process */ |
|
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274 if (!p->initialized) { |
|
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275 /* initialization notify */ |
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276 p->initialized = TRUE;; |
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277 } else { |
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278 /* not listening for new connections anymore */ |
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279 login_process_mark_nonlistening(p); |
|
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280 } |
|
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281 return; |
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282 } |
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283 |
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284 fd_close_on_exec(client_fd, TRUE); |
| 0 | 285 |
| 286 /* ask the cookie from the auth process */ | |
|
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287 authreq = i_new(struct login_auth_request, 1); |
| 0 | 288 p->refcount++; |
| 289 authreq->process = p; | |
|
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290 authreq->tag = ++auth_id_counter; |
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291 authreq->login_tag = req.tag; |
| 0 | 292 authreq->fd = client_fd; |
|
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293 authreq->local_ip = req.local_ip; |
|
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294 authreq->remote_ip = req.remote_ip; |
| 0 | 295 |
|
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296 auth_process = auth_process_find(req.auth_pid); |
| 0 | 297 if (auth_process == NULL) { |
| 298 i_error("login: Authentication process %u doesn't exist", | |
|
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299 req.auth_pid); |
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300 auth_master_callback(NULL, NULL, authreq); |
| 0 | 301 } else { |
|
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302 auth_process_request(auth_process, p->pid, |
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303 req.auth_id, authreq); |
| 0 | 304 } |
| 305 } | |
| 306 | |
|
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307 static struct login_process * |
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308 login_process_new(struct login_group *group, pid_t pid, int fd) |
| 0 | 309 { |
|
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310 struct login_process *p; |
| 0 | 311 |
|
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312 i_assert(pid != 0); |
| 0 | 313 |
|
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314 p = i_new(struct login_process, 1); |
|
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315 p->group = group; |
| 0 | 316 p->refcount = 1; |
| 317 p->pid = pid; | |
| 318 p->fd = fd; | |
|
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319 p->listening = TRUE; |
| 0 | 320 p->io = io_add(fd, IO_READ, login_process_input, p); |
|
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321 p->output = o_stream_create_file(fd, default_pool, |
|
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322 sizeof(struct master_login_reply)*10, |
|
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Removed I/O priorities. They were pretty much useless and were just getting
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323 FALSE); |
| 0 | 324 |
|
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325 PID_ADD_PROCESS_TYPE(pid, PROCESS_TYPE_LOGIN); |
|
195
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326 hash_insert(processes, POINTER_CAST(pid), p); |
|
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327 |
|
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328 if (p->group != NULL) { |
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329 p->group->processes++; |
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330 p->group->listening_processes++; |
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331 } |
| 0 | 332 return p; |
| 333 } | |
| 334 | |
|
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335 static void login_process_remove_from_lists(struct login_process *p) |
|
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336 { |
|
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337 if (p->group == NULL) |
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338 return; |
|
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339 |
|
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340 if (p == p->group->oldest_nonlisten_process) |
|
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341 p->group->oldest_nonlisten_process = p->next_nonlisten; |
|
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342 else |
|
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343 p->prev_nonlisten->next_nonlisten = p->next_nonlisten; |
|
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344 |
|
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345 if (p == p->group->newest_nonlisten_process) |
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346 p->group->newest_nonlisten_process = p->prev_nonlisten; |
|
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|
347 else |
|
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348 p->next_nonlisten->prev_nonlisten = p->prev_nonlisten; |
|
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349 |
|
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350 p->next_nonlisten = p->prev_nonlisten = NULL; |
|
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|
351 } |
|
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|
352 |
|
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|
353 static void login_process_destroy(struct login_process *p) |
| 0 | 354 { |
| 355 if (p->destroyed) | |
| 356 return; | |
| 357 p->destroyed = TRUE; | |
| 358 | |
|
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|
359 if (!p->initialized && io_loop_is_running(ioloop)) { |
|
1000
0fbafade2d85
If auth/login process died unexpectedly, the exit status or killing signal
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|
360 i_error("Login process died too early - shutting down"); |
|
0fbafade2d85
If auth/login process died unexpectedly, the exit status or killing signal
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|
361 io_loop_stop(ioloop); |
|
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362 } |
|
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363 |
|
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364 if (p->listening && p->group != NULL) |
|
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|
365 p->group->listening_processes--; |
|
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|
366 |
|
764
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Renamed IBuffer and OBuffer to IStream and OStream which describes their
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|
367 o_stream_close(p->output); |
|
3879
928229f8b3e6
deinit, unref, destroy, close, free, etc. functions now take a pointer to
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|
368 io_remove(&p->io); |
|
805
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
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|
369 if (close(p->fd) < 0) |
|
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
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|
370 i_error("close(login) failed: %m"); |
| 0 | 371 |
|
613
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Finally support for handling each login connection in it's own process.
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|
372 if (!p->listening) |
|
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|
373 login_process_remove_from_lists(p); |
|
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|
374 |
|
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|
375 if (p->group != NULL) |
|
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|
376 p->group->processes--; |
|
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|
377 |
|
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|
378 if (p->pid != 0) |
|
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|
379 hash_remove(processes, POINTER_CAST(p->pid)); |
|
613
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|
380 |
| 0 | 381 login_process_unref(p); |
| 382 } | |
| 383 | |
|
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|
384 static void login_process_unref(struct login_process *p) |
| 0 | 385 { |
| 386 if (--p->refcount > 0) | |
| 387 return; | |
| 388 | |
|
3879
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|
389 o_stream_unref(&p->output); |
| 0 | 390 i_free(p); |
| 391 } | |
| 392 | |
|
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|
393 static void login_process_init_env(struct login_group *group, pid_t pid) |
|
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|
394 { |
|
1610
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New configuration file code. Some syntax changes, but tries to be somewhat
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|
395 struct settings *set = group->set; |
|
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|
396 |
|
2000
c7c19f5071c3
Write all logging through master process. Fixes problems with log rotation,
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|
397 child_process_init_env(); |
|
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|
398 |
|
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|
399 /* setup access environment - needs to be done after |
| 3692 | 400 clean_child_process() since it clears environment. Don't set user |
| 401 parameter since we don't want to call initgroups() for login | |
|
3691
e167b71e37e3
Don't call initgroups() at the start of login processes.
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|
402 processes. */ |
|
e167b71e37e3
Don't call initgroups() at the start of login processes.
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|
403 restrict_access_set_env(NULL, set->login_uid, |
|
1724
b3526668de78
Make sure auth process and login process don't share uids.
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diff
changeset
|
404 set->server->login_gid, |
|
1506
e7c627bacaaf
Allow first_valid_gid to be 0. Drop any supplementary groups not in valid
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diff
changeset
|
405 set->login_chroot ? set->login_dir : NULL, |
|
2141
8690d2000e33
Added mail_extra_groups setting.
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|
406 0, 0, NULL); |
|
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|
407 |
|
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|
408 env_put("DOVECOT_MASTER=1"); |
|
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|
409 |
|
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|
410 if (!set->ssl_disable) { |
|
3889
c7462001227b
Added support for password protected SSL private keys. The password can be
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3879
diff
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|
411 const char *ssl_key_password = NULL; |
|
c7462001227b
Added support for password protected SSL private keys. The password can be
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diff
changeset
|
412 |
|
c7462001227b
Added support for password protected SSL private keys. The password can be
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|
413 ssl_key_password = set->ssl_key_password != NULL ? |
|
c7462001227b
Added support for password protected SSL private keys. The password can be
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|
414 set->ssl_key_password : ssl_manual_key_password; |
|
c7462001227b
Added support for password protected SSL private keys. The password can be
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|
415 |
|
1907
190f1d315ce6
Added setting ssl_ca_file, patch by Zach Bagnall
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diff
changeset
|
416 if (set->ssl_ca_file != NULL) { |
|
190f1d315ce6
Added setting ssl_ca_file, patch by Zach Bagnall
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|
417 env_put(t_strconcat("SSL_CA_FILE=", |
|
190f1d315ce6
Added setting ssl_ca_file, patch by Zach Bagnall
Timo Sirainen <tss@iki.fi>
parents:
1897
diff
changeset
|
418 set->ssl_ca_file, NULL)); |
|
190f1d315ce6
Added setting ssl_ca_file, patch by Zach Bagnall
Timo Sirainen <tss@iki.fi>
parents:
1897
diff
changeset
|
419 } |
|
1273
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
420 env_put(t_strconcat("SSL_CERT_FILE=", |
|
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
421 set->ssl_cert_file, NULL)); |
|
1610
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
422 env_put(t_strconcat("SSL_KEY_FILE=", |
|
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
423 set->ssl_key_file, NULL)); |
|
3889
c7462001227b
Added support for password protected SSL private keys. The password can be
Timo Sirainen <tss@iki.fi>
parents:
3879
diff
changeset
|
424 env_put(t_strconcat("SSL_KEY_PASSWORD=", |
|
c7462001227b
Added support for password protected SSL private keys. The password can be
Timo Sirainen <tss@iki.fi>
parents:
3879
diff
changeset
|
425 ssl_key_password, NULL)); |
|
3901
0ae5f5b468b7
Put ssl-parameters file into login directory so it still can be accessed
Timo Sirainen <tss@iki.fi>
parents:
3889
diff
changeset
|
426 env_put("SSL_PARAM_FILE="SSL_PARAMETERS_FILENAME); |
| 1996 | 427 if (set->ssl_cipher_list != NULL) { |
| 428 env_put(t_strconcat("SSL_CIPHER_LIST=", | |
| 429 set->ssl_cipher_list, NULL)); | |
| 430 } | |
|
1997
1d0985f6bdd9
Added ssl_verify_client_cert setting.
Timo Sirainen <tss@iki.fi>
parents:
1996
diff
changeset
|
431 if (set->ssl_verify_client_cert) |
|
1d0985f6bdd9
Added ssl_verify_client_cert setting.
Timo Sirainen <tss@iki.fi>
parents:
1996
diff
changeset
|
432 env_put("SSL_VERIFY_CLIENT_CERT=1"); |
|
1273
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
433 } |
|
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
434 |
|
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
435 if (set->disable_plaintext_auth) |
|
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
436 env_put("DISABLE_PLAINTEXT_AUTH=1"); |
|
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
437 if (set->verbose_proctitle) |
|
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
438 env_put("VERBOSE_PROCTITLE=1"); |
|
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
439 if (set->verbose_ssl) |
|
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
440 env_put("VERBOSE_SSL=1"); |
|
2691
46f879c46b45
auth_verbose now affects imap/pop3 login processes too. Every authentication
Timo Sirainen <tss@iki.fi>
parents:
2674
diff
changeset
|
441 if (set->server->auths->verbose) |
|
46f879c46b45
auth_verbose now affects imap/pop3 login processes too. Every authentication
Timo Sirainen <tss@iki.fi>
parents:
2674
diff
changeset
|
442 env_put("VERBOSE_AUTH=1"); |
|
1273
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
443 |
|
1610
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
444 if (set->login_process_per_connection) { |
|
1273
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
445 env_put("PROCESS_PER_CONNECTION=1"); |
|
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
446 env_put("MAX_LOGGING_USERS=1"); |
|
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
447 } else { |
|
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
448 env_put(t_strdup_printf("MAX_LOGGING_USERS=%u", |
|
1610
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
449 set->login_max_logging_users)); |
|
1273
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
450 } |
|
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
451 |
|
2674
857f5f7b512b
Added login_greeting and login_greeting_capability settings.
Timo Sirainen <tss@iki.fi>
parents:
2329
diff
changeset
|
452 env_put(t_strconcat("PROCESS_UID=", dec2str(pid), NULL)); |
|
857f5f7b512b
Added login_greeting and login_greeting_capability settings.
Timo Sirainen <tss@iki.fi>
parents:
2329
diff
changeset
|
453 env_put(t_strconcat("GREETING=", set->login_greeting, NULL)); |
|
3384
3b75956d20c4
Added configurable logging for login process. Added configurable pop3 logout
Timo Sirainen <tss@iki.fi>
parents:
3083
diff
changeset
|
454 env_put(t_strconcat("LOG_FORMAT_ELEMENTS=", |
|
3b75956d20c4
Added configurable logging for login process. Added configurable pop3 logout
Timo Sirainen <tss@iki.fi>
parents:
3083
diff
changeset
|
455 set->login_log_format_elements, NULL)); |
|
3b75956d20c4
Added configurable logging for login process. Added configurable pop3 logout
Timo Sirainen <tss@iki.fi>
parents:
3083
diff
changeset
|
456 env_put(t_strconcat("LOG_FORMAT=", set->login_log_format, NULL)); |
|
2674
857f5f7b512b
Added login_greeting and login_greeting_capability settings.
Timo Sirainen <tss@iki.fi>
parents:
2329
diff
changeset
|
457 if (set->login_greeting_capability) |
|
857f5f7b512b
Added login_greeting and login_greeting_capability settings.
Timo Sirainen <tss@iki.fi>
parents:
2329
diff
changeset
|
458 env_put("GREETING_CAPABILITY=1"); |
|
4197
c3ded5b815aa
If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents:
4148
diff
changeset
|
459 |
|
c3ded5b815aa
If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents:
4148
diff
changeset
|
460 if (group->process_type == PROCESS_TYPE_IMAP) { |
|
c3ded5b815aa
If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents:
4148
diff
changeset
|
461 env_put(t_strconcat("CAPABILITY_STRING=", |
|
c3ded5b815aa
If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents:
4148
diff
changeset
|
462 *set->imap_capability != '\0' ? |
|
c3ded5b815aa
If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents:
4148
diff
changeset
|
463 set->imap_capability : |
|
c3ded5b815aa
If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents:
4148
diff
changeset
|
464 set->imap_generated_capability, NULL)); |
|
c3ded5b815aa
If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents:
4148
diff
changeset
|
465 } |
|
1273
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
466 } |
|
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
467 |
|
1055
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
468 static pid_t create_login_process(struct login_group *group) |
| 0 | 469 { |
| 2046 | 470 struct log_io *log; |
|
3083
a20882c4f092
Disable log throttlong for auth process, and for login processes if
Timo Sirainen <tss@iki.fi>
parents:
2886
diff
changeset
|
471 unsigned int max_log_lines_per_sec; |
|
2000
c7c19f5071c3
Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents:
1997
diff
changeset
|
472 const char *prefix; |
| 0 | 473 pid_t pid; |
|
2000
c7c19f5071c3
Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents:
1997
diff
changeset
|
474 int fd[2], log_fd; |
| 0 | 475 |
|
1610
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
476 if (group->set->login_process_per_connection && |
|
1055
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
477 group->processes - group->listening_processes >= |
|
1610
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
478 group->set->login_max_logging_users) { |
|
1055
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
479 if (group->oldest_nonlisten_process != NULL) |
|
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
480 login_process_destroy(group->oldest_nonlisten_process); |
|
613
1906116a62ce
Finally support for handling each login connection in it's own process.
Timo Sirainen <tss@iki.fi>
parents:
596
diff
changeset
|
481 } |
|
1906116a62ce
Finally support for handling each login connection in it's own process.
Timo Sirainen <tss@iki.fi>
parents:
596
diff
changeset
|
482 |
|
1610
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
483 if (group->set->login_uid == 0) |
| 0 | 484 i_fatal("Login process must not run as root"); |
| 485 | |
| 486 /* create communication to process with a socket pair */ | |
|
2000
c7c19f5071c3
Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents:
1997
diff
changeset
|
487 if (socketpair(AF_UNIX, SOCK_STREAM, 0, fd) < 0) { |
| 0 | 488 i_error("socketpair() failed: %m"); |
| 489 return -1; | |
| 490 } | |
| 491 | |
|
3083
a20882c4f092
Disable log throttlong for auth process, and for login processes if
Timo Sirainen <tss@iki.fi>
parents:
2886
diff
changeset
|
492 max_log_lines_per_sec = |
|
a20882c4f092
Disable log throttlong for auth process, and for login processes if
Timo Sirainen <tss@iki.fi>
parents:
2886
diff
changeset
|
493 group->set->login_process_per_connection ? 10 : 0; |
|
a20882c4f092
Disable log throttlong for auth process, and for login processes if
Timo Sirainen <tss@iki.fi>
parents:
2886
diff
changeset
|
494 log_fd = log_create_pipe(&log, max_log_lines_per_sec); |
|
2000
c7c19f5071c3
Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents:
1997
diff
changeset
|
495 if (log_fd < 0) |
|
c7c19f5071c3
Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents:
1997
diff
changeset
|
496 pid = -1; |
|
c7c19f5071c3
Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents:
1997
diff
changeset
|
497 else { |
|
c7c19f5071c3
Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents:
1997
diff
changeset
|
498 pid = fork(); |
|
c7c19f5071c3
Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents:
1997
diff
changeset
|
499 if (pid < 0) |
|
c7c19f5071c3
Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents:
1997
diff
changeset
|
500 i_error("fork() failed: %m"); |
|
c7c19f5071c3
Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents:
1997
diff
changeset
|
501 } |
|
c7c19f5071c3
Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents:
1997
diff
changeset
|
502 |
| 0 | 503 if (pid < 0) { |
| 504 (void)close(fd[0]); | |
| 505 (void)close(fd[1]); | |
|
2000
c7c19f5071c3
Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents:
1997
diff
changeset
|
506 (void)close(log_fd); |
| 0 | 507 return -1; |
| 508 } | |
| 509 | |
| 510 if (pid != 0) { | |
| 511 /* master */ | |
| 2046 | 512 prefix = t_strdup_printf("%s-login: ", |
| 513 process_names[group->process_type]); | |
| 514 log_set_prefix(log, prefix); | |
| 515 | |
|
1273
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
516 net_set_nonblock(fd[0], TRUE); |
|
727
8dd8ebe6bcac
We use close-on-exec flag now to make sure that master process closes the
Timo Sirainen <tss@iki.fi>
parents:
722
diff
changeset
|
517 fd_close_on_exec(fd[0], TRUE); |
|
1273
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
518 (void)login_process_new(group, pid, fd[0]); |
| 0 | 519 (void)close(fd[1]); |
|
2000
c7c19f5071c3
Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents:
1997
diff
changeset
|
520 (void)close(log_fd); |
| 0 | 521 return pid; |
| 522 } | |
| 523 | |
| 2046 | 524 prefix = t_strdup_printf("master-%s-login: ", |
| 525 process_names[group->process_type]); | |
| 526 log_set_prefix(log, prefix); | |
| 527 | |
| 0 | 528 /* move the listen handle */ |
|
1610
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
529 if (dup2(group->set->listen_fd, LOGIN_LISTEN_FD) < 0) |
| 2046 | 530 i_fatal("dup2(listen_fd) failed: %m"); |
|
1055
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
531 fd_close_on_exec(LOGIN_LISTEN_FD, FALSE); |
| 0 | 532 |
| 533 /* move the SSL listen handle */ | |
|
1610
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
534 if (dup2(group->set->ssl_listen_fd, LOGIN_SSL_LISTEN_FD) < 0) |
| 2046 | 535 i_fatal("dup2(ssl_listen_fd) failed: %m"); |
|
1055
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
536 fd_close_on_exec(LOGIN_SSL_LISTEN_FD, FALSE); |
| 0 | 537 |
|
1273
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
538 /* move communication handle */ |
|
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
539 if (dup2(fd[1], LOGIN_MASTER_SOCKET_FD) < 0) |
| 2046 | 540 i_fatal("dup2(master) failed: %m"); |
|
1273
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
541 fd_close_on_exec(LOGIN_MASTER_SOCKET_FD, FALSE); |
| 0 | 542 |
|
2000
c7c19f5071c3
Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents:
1997
diff
changeset
|
543 if (dup2(log_fd, 2) < 0) |
| 2046 | 544 i_fatal("dup2(stderr) failed: %m"); |
|
2000
c7c19f5071c3
Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents:
1997
diff
changeset
|
545 fd_close_on_exec(2, FALSE); |
|
c7c19f5071c3
Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents:
1997
diff
changeset
|
546 |
| 0 | 547 (void)close(fd[0]); |
| 548 (void)close(fd[1]); | |
| 549 | |
|
1273
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
550 login_process_init_env(group, getpid()); |
| 0 | 551 |
|
1610
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
552 if (!group->set->login_chroot) { |
| 0 | 553 /* no chrooting, but still change to the directory */ |
|
1610
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
554 if (chdir(group->set->login_dir) < 0) { |
|
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
555 i_fatal("chdir(%s) failed: %m", |
|
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
556 group->set->login_dir); |
|
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
557 } |
| 0 | 558 } |
| 559 | |
|
1610
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
560 restrict_process_size(group->set->login_process_size, (unsigned int)-1); |
|
722
0438621d25ff
Added virtual memory size limits to processes. Default values are pretty
Timo Sirainen <tss@iki.fi>
parents:
699
diff
changeset
|
561 |
|
801
86224ff16bf6
Drop root privileges earlier. Close syslog more later in imap-master when
Timo Sirainen <tss@iki.fi>
parents:
791
diff
changeset
|
562 /* make sure we don't leak syslog fd, but do it last so that |
|
86224ff16bf6
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563 any errors above will be logged */ |
|
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diff
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|
564 closelog(); |
|
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|
565 |
|
2886
634cf6aa34d1
Allow running all executables with parameters.
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|
566 client_process_exec(group->set->login_executable, ""); |
|
1441
a83ce8395316
If exec() fails, show the full path rather than argv[0]
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|
567 i_fatal_status(FATAL_EXEC, "execv(%s) failed: %m", |
|
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|
568 group->set->login_executable); |
| 0 | 569 return -1; |
| 570 } | |
| 571 | |
|
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|
572 void login_process_abormal_exit(pid_t pid) |
|
615
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Master process generates DH/RSA parameters now and stores them into file
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|
573 { |
|
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|
574 struct login_process *p; |
|
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|
575 |
|
615
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|
576 /* don't start raising the process count if they're dying all |
|
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|
577 the time */ |
|
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|
578 p = hash_lookup(processes, POINTER_CAST(pid)); |
|
1275
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|
579 if (p != NULL && p->group != NULL) |
|
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|
580 p->group->wanted_processes_count = 0; |
|
615
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|
581 } |
|
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changeset
|
582 |
|
635
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SIGHUP reloads now settings. Logged in clients are left untouched, but
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diff
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|
583 void login_processes_destroy_all(void) |
|
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SIGHUP reloads now settings. Logged in clients are left untouched, but
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diff
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|
584 { |
|
1897
1e6ed8045f2b
Changed hash_foreach() to iterator.
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|
585 struct hash_iterate_context *iter; |
|
1e6ed8045f2b
Changed hash_foreach() to iterator.
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|
586 void *key, *value; |
|
1e6ed8045f2b
Changed hash_foreach() to iterator.
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|
587 |
|
1e6ed8045f2b
Changed hash_foreach() to iterator.
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changeset
|
588 iter = hash_iterate_init(processes); |
|
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Changed hash_foreach() to iterator.
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|
589 while (hash_iterate(iter, &key, &value)) |
|
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Changed hash_foreach() to iterator.
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|
590 login_process_destroy(value); |
|
1e6ed8045f2b
Changed hash_foreach() to iterator.
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changeset
|
591 hash_iterate_deinit(iter); |
|
635
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diff
changeset
|
592 |
|
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|
593 while (login_groups != NULL) { |
|
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|
594 struct login_group *group = login_groups; |
|
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|
595 |
|
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Rewrote setting handling. Changed some existing settings also since POP3
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|
596 login_groups = group->next; |
|
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|
597 login_group_destroy(group); |
|
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|
598 } |
|
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|
599 } |
|
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Rewrote setting handling. Changed some existing settings also since POP3
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|
600 |
|
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|
601 static int login_group_start_missings(struct login_group *group) |
|
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|
602 { |
|
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|
603 if (!group->set->login_process_per_connection) { |
|
1055
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|
604 /* create max. one process every second, that way if it keeps |
|
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Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
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|
605 dying all the time we don't eat all cpu with fork()ing. */ |
|
1610
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|
606 if (group->listening_processes < |
|
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|
607 group->set->login_processes_count) { |
|
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|
608 if (create_login_process(group) < 0) |
|
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|
609 return -1; |
|
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|
610 } |
|
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|
611 return 0; |
|
1055
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Rewrote setting handling. Changed some existing settings also since POP3
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parents:
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diff
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|
612 } |
|
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
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diff
changeset
|
613 |
|
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
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diff
changeset
|
614 /* we want to respond fast when multiple clients are connecting |
|
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
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parents:
1039
diff
changeset
|
615 at once, but we also want to prevent fork-bombing. use the |
|
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
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parents:
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diff
changeset
|
616 same method as apache: check once a second if we need new |
|
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
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parents:
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changeset
|
617 processes. if yes and we've used all the existing processes, |
|
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
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parents:
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changeset
|
618 double their amount (unless we've hit the high limit). |
|
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
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parents:
1039
diff
changeset
|
619 Then for each second that didn't use all existing processes, |
|
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
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parents:
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changeset
|
620 drop the max. process count by one. */ |
|
1610
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
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diff
changeset
|
621 if (group->wanted_processes_count < group->set->login_processes_count) { |
|
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
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parents:
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diff
changeset
|
622 group->wanted_processes_count = |
|
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
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parents:
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changeset
|
623 group->set->login_processes_count; |
|
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
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parents:
1506
diff
changeset
|
624 } else if (group->listening_processes == 0) |
|
1055
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Rewrote setting handling. Changed some existing settings also since POP3
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diff
changeset
|
625 group->wanted_processes_count *= 2; |
|
1610
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changeset
|
626 else if (group->wanted_processes_count > |
|
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
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parents:
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diff
changeset
|
627 group->set->login_processes_count) |
|
1055
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Rewrote setting handling. Changed some existing settings also since POP3
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parents:
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diff
changeset
|
628 group->wanted_processes_count--; |
|
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
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parents:
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diff
changeset
|
629 |
|
1610
6850142c4e25
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diff
changeset
|
630 if (group->wanted_processes_count > |
|
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
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parents:
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diff
changeset
|
631 group->set->login_max_processes_count) { |
|
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
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parents:
1506
diff
changeset
|
632 group->wanted_processes_count = |
|
6850142c4e25
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diff
changeset
|
633 group->set->login_max_processes_count; |
|
6850142c4e25
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diff
changeset
|
634 } |
|
1055
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Rewrote setting handling. Changed some existing settings also since POP3
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diff
changeset
|
635 |
|
4148
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|
636 while (group->listening_processes < group->wanted_processes_count) { |
|
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|
637 if (create_login_process(group) < 0) |
|
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changeset
|
638 return -1; |
|
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changeset
|
639 } |
|
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changeset
|
640 return 0; |
|
635
90a65c017bf0
SIGHUP reloads now settings. Logged in clients are left untouched, but
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parents:
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diff
changeset
|
641 } |
|
90a65c017bf0
SIGHUP reloads now settings. Logged in clients are left untouched, but
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parents:
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diff
changeset
|
642 |
|
4148
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changeset
|
643 static void login_processes_stall(void) |
|
f60d73c96618
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|
644 { |
|
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|
645 if (logins_stalled) |
|
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|
646 return; |
|
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|
647 |
|
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|
648 i_error("Temporary failure in creating login processes, " |
|
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|
649 "slowing down for now"); |
|
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|
650 logins_stalled = TRUE; |
|
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|
651 |
|
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|
652 timeout_remove(&to); |
|
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|
653 to = timeout_add(60*1000, login_processes_start_missing, NULL); |
|
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|
654 } |
|
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|
655 |
|
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changeset
|
656 |
|
903
fd8888f6f037
Naming style changes, finally got tired of most of the typedefs. Also the
Timo Sirainen <tss@iki.fi>
parents:
876
diff
changeset
|
657 static void |
|
1036
f782b3319553
Removed useless parameters from io_callback_t and timeout_callback_t.
Timo Sirainen <tss@iki.fi>
parents:
1035
diff
changeset
|
658 login_processes_start_missing(void *context __attr_unused__) |
| 0 | 659 { |
|
1055
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Rewrote setting handling. Changed some existing settings also since POP3
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changeset
|
660 struct login_group *group; |
|
614
e60620644af3
login_process_per_connection = yes scales now better when multiple users are
Timo Sirainen <tss@iki.fi>
parents:
613
diff
changeset
|
661 |
|
1610
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changeset
|
662 if (login_groups == NULL) |
|
6850142c4e25
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changeset
|
663 login_process_groups_create(); |
|
614
e60620644af3
login_process_per_connection = yes scales now better when multiple users are
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parents:
613
diff
changeset
|
664 |
|
4148
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|
665 for (group = login_groups; group != NULL; group = group->next) { |
|
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|
666 if (login_group_start_missings(group) < 0) { |
|
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|
667 login_processes_stall(); |
|
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|
668 return; |
|
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|
669 } |
|
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|
670 } |
|
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|
671 |
|
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|
672 if (logins_stalled) { |
|
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|
673 /* processes were created successfully */ |
|
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changeset
|
674 i_info("Created login processes successfully, unstalling"); |
|
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|
675 |
|
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|
676 logins_stalled = FALSE; |
|
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677 timeout_remove(&to); |
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678 to = timeout_add(1000, login_processes_start_missing, NULL); |
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679 } |
| 0 | 680 } |
| 681 | |
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682 static int login_process_send_env(struct login_process *p) |
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683 { |
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684 extern char **environ; |
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685 char **env; |
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686 ssize_t len; |
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687 int ret = 0; |
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688 |
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689 /* this will clear our environment. luckily we don't need it. */ |
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690 login_process_init_env(p->group, p->pid); |
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691 |
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692 for (env = environ; *env != NULL; env++) { |
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693 len = strlen(*env); |
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694 |
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695 if (o_stream_send(p->output, *env, len) != len || |
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696 o_stream_send(p->output, "\n", 1) != 1) { |
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697 ret = -1; |
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698 break; |
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699 } |
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700 } |
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701 |
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702 if (!p->group->set->login_chroot) { |
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703 /* if we're not chrooting, we need to tell login process |
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704 where its base directory is */ |
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705 const char *str = t_strdup_printf("LOGIN_DIR=%s\n", |
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706 p->group->set->login_dir); |
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707 len = strlen(str); |
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708 if (o_stream_send(p->output, str, len) != len) |
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709 ret = -1; |
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710 } |
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711 |
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712 if (ret == 0 && o_stream_send(p->output, "\n", 1) != 1) |
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713 ret = -1; |
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714 |
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715 env_clean(); |
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716 return ret; |
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717 } |
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718 |
|
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|
719 static bool login_process_init_group(struct login_process *p) |
|
1275
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720 { |
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|
721 p->group->processes++; |
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722 p->group->listening_processes++; |
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723 |
|
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724 if (login_process_send_env(p) < 0) { |
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725 i_error("login: Couldn't send environment"); |
|
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|
726 return FALSE; |
|
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|
727 } |
|
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|
728 |
|
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|
729 return TRUE; |
|
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|
730 } |
|
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|
731 |
|
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732 static void inetd_login_accept(void *context __attr_unused__) |
|
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733 { |
|
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734 struct login_process *p; |
|
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|
735 int fd; |
|
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|
736 |
|
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737 fd = net_accept(inetd_login_fd, NULL, NULL); |
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738 if (fd < 0) { |
|
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739 if (fd < -1) |
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740 i_fatal("accept(inetd_login_fd) failed: %m"); |
|
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741 } else { |
|
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|
742 net_set_nonblock(fd, TRUE); |
|
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|
743 fd_close_on_exec(fd, TRUE); |
|
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|
744 |
|
1275
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|
745 p = login_process_new(NULL, ++login_pid_counter, fd); |
|
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|
746 p->initialized = TRUE; |
|
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|
747 } |
|
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748 } |
|
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|
749 |
| 0 | 750 void login_processes_init(void) |
| 751 { | |
|
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|
752 auth_id_counter = 0; |
|
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|
753 login_pid_counter = 0; |
|
1055
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
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diff
changeset
|
754 login_groups = NULL; |
|
613
1906116a62ce
Finally support for handling each login connection in it's own process.
Timo Sirainen <tss@iki.fi>
parents:
596
diff
changeset
|
755 |
|
945
501f076f2e74
Rewrote hash table code, works with less memory now. Also some memory
Timo Sirainen <tss@iki.fi>
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929
diff
changeset
|
756 processes = hash_create(default_pool, default_pool, 128, NULL, NULL); |
|
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|
757 if (!IS_INETD()) { |
|
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|
758 to = timeout_add(1000, login_processes_start_missing, NULL); |
|
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|
759 io_listen = NULL; |
|
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|
760 } else { |
|
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|
761 to = NULL; |
|
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|
762 io_listen = io_add(inetd_login_fd, IO_READ, |
|
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|
763 inetd_login_accept, NULL); |
|
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|
764 } |
| 0 | 765 } |
| 766 | |
| 767 void login_processes_deinit(void) | |
| 768 { | |
|
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|
769 if (to != NULL) |
|
3879
928229f8b3e6
deinit, unref, destroy, close, free, etc. functions now take a pointer to
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diff
changeset
|
770 timeout_remove(&to); |
|
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|
771 if (io_listen != NULL) |
|
3879
928229f8b3e6
deinit, unref, destroy, close, free, etc. functions now take a pointer to
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diff
changeset
|
772 io_remove(&io_listen); |
| 0 | 773 |
|
635
90a65c017bf0
SIGHUP reloads now settings. Logged in clients are left untouched, but
Timo Sirainen <tss@iki.fi>
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615
diff
changeset
|
774 login_processes_destroy_all(); |
| 0 | 775 hash_destroy(processes); |
| 776 } |