Mercurial > dovecot > original-hg > dovecot-1.2
annotate src/master/login-process.c @ 5846:21e529b8a701 HEAD
Initial implementation for mail_max_user_connections setting.
author | Timo Sirainen <tss@iki.fi> |
---|---|
date | Sat, 30 Jun 2007 19:14:08 +0300 |
parents | f655c4d4a419 |
children | 3f2eb1b9c555 |
rev | line source |
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0 | 1 /* Copyright (C) 2002 Timo Sirainen */ |
2 | |
3 #include "common.h" | |
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4 #include "ioloop.h" |
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5 #include "hash.h" |
0 | 6 #include "network.h" |
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7 #include "ostream.h" |
0 | 8 #include "fdpass.h" |
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9 #include "fd-close-on-exec.h" |
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10 #include "env-util.h" |
0 | 11 #include "restrict-access.h" |
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12 #include "restrict-process-size.h" |
0 | 13 #include "login-process.h" |
14 #include "auth-process.h" | |
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15 #include "mail-process.h" |
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16 #include "master-login-interface.h" |
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17 #include "log.h" |
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18 #include "ssl-init.h" |
0 | 19 |
20 #include <unistd.h> | |
21 #include <syslog.h> | |
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22 #include <sys/stat.h> |
0 | 23 |
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24 struct login_process { |
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25 struct child_process process; |
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26 |
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27 struct login_group *group; |
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28 struct login_process *prev_prelogin, *next_prelogin; |
0 | 29 int refcount; |
30 | |
31 pid_t pid; | |
32 int fd; | |
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33 struct io *io; |
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34 struct ostream *output; |
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35 enum master_login_state state; |
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36 |
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37 unsigned int initialized:1; |
0 | 38 unsigned int destroyed:1; |
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39 unsigned int inetd_child:1; |
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40 }; |
0 | 41 |
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42 struct login_auth_request { |
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43 struct login_process *process; |
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44 unsigned int tag; |
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45 |
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46 unsigned int login_tag; |
0 | 47 int fd; |
48 | |
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49 struct ip_addr local_ip, remote_ip; |
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50 }; |
0 | 51 |
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52 static unsigned int auth_id_counter, login_pid_counter; |
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53 static struct timeout *to; |
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54 static struct io *io_listen; |
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55 static bool logins_stalled = FALSE; |
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56 |
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57 static struct login_group *login_groups; |
0 | 58 |
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59 static void login_processes_stall(void); |
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60 static void login_process_destroy(struct login_process *p); |
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61 static void login_process_unref(struct login_process *p); |
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62 static bool login_process_init_group(struct login_process *p); |
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63 static void login_processes_start_missing(void *context); |
0 | 64 |
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65 static void login_group_create(struct settings *set) |
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66 { |
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67 struct login_group *group; |
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68 |
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69 group = i_new(struct login_group, 1); |
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70 group->refcount = 1; |
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71 group->set = set; |
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72 group->mail_process_type = set->protocol == MAIL_PROTOCOL_IMAP ? |
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73 PROCESS_TYPE_IMAP : PROCESS_TYPE_POP3; |
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74 |
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75 group->next = login_groups; |
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76 login_groups = group; |
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77 } |
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78 |
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79 static void login_group_unref(struct login_group *group) |
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80 { |
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81 i_assert(group->refcount > 0); |
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82 |
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83 if (--group->refcount > 0) |
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84 return; |
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85 |
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86 i_free(group); |
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87 } |
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88 |
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89 void auth_master_callback(const char *user, const char *const *args, |
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90 struct login_auth_request *request) |
0 | 91 { |
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92 struct master_login_reply master_reply; |
2329 | 93 ssize_t ret; |
0 | 94 |
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95 memset(&master_reply, 0, sizeof(master_reply)); |
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96 if (user == NULL) |
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97 master_reply.status = MASTER_LOGIN_STATUS_INTERNAL_ERROR; |
0 | 98 else { |
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99 struct login_group *group = request->process->group; |
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100 |
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101 t_push(); |
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102 master_reply.status = |
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103 create_mail_process(group->mail_process_type, |
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104 group->set, |
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105 request->fd, &request->local_ip, |
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106 &request->remote_ip, user, args, |
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107 FALSE); |
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108 t_pop(); |
0 | 109 } |
110 | |
111 /* reply to login */ | |
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112 master_reply.tag = request->login_tag; |
0 | 113 |
2329 | 114 ret = o_stream_send(request->process->output, &master_reply, |
115 sizeof(master_reply)); | |
116 if (ret != sizeof(master_reply)) { | |
117 if (ret >= 0) { | |
118 i_warning("Login process %s transmit buffer full, " | |
119 "killing..", dec2str(request->process->pid)); | |
120 } | |
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121 login_process_destroy(request->process); |
2329 | 122 } |
0 | 123 |
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124 if (close(request->fd) < 0) |
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125 i_error("close(mail client) failed: %m"); |
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126 login_process_unref(request->process); |
0 | 127 i_free(request); |
128 } | |
129 | |
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130 static void process_remove_from_prelogin_lists(struct login_process *p) |
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131 { |
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132 if (p->state != LOGIN_STATE_FULL_PRELOGINS) |
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133 return; |
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134 |
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135 if (p->prev_prelogin == NULL) |
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136 p->group->oldest_prelogin_process = p->next_prelogin; |
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137 else |
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138 p->prev_prelogin->next_prelogin = p->next_prelogin; |
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139 |
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140 if (p->next_prelogin == NULL) |
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141 p->group->newest_prelogin_process = p->prev_prelogin; |
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142 else |
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143 p->next_prelogin->prev_prelogin = p->prev_prelogin; |
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144 |
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145 p->prev_prelogin = p->next_prelogin = NULL; |
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146 } |
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147 |
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148 static void process_mark_nonlistening(struct login_process *p, |
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149 enum master_login_state new_state) |
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150 { |
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151 if (p->group == NULL) |
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152 return; |
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153 |
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154 if (p->state == LOGIN_STATE_LISTENING) |
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155 p->group->listening_processes--; |
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156 |
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157 if (new_state == LOGIN_STATE_FULL_PRELOGINS) { |
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158 /* add to prelogin list */ |
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159 i_assert(p->state != new_state); |
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160 |
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161 p->prev_prelogin = p->group->newest_prelogin_process; |
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162 if (p->group->newest_prelogin_process == NULL) |
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163 p->group->oldest_prelogin_process = p; |
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164 else |
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165 p->group->newest_prelogin_process->next_prelogin = p; |
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166 p->group->newest_prelogin_process = p; |
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167 } else { |
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168 process_remove_from_prelogin_lists(p); |
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169 } |
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170 } |
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171 |
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172 static void process_mark_listening(struct login_process *p) |
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173 { |
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174 if (p->group == NULL) |
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175 return; |
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176 |
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177 if (p->state != LOGIN_STATE_LISTENING) |
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178 p->group->listening_processes++; |
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179 |
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180 process_remove_from_prelogin_lists(p); |
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181 } |
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182 |
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183 static void login_process_set_initialized(struct login_process *p) |
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184 { |
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185 p->initialized = TRUE; |
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186 |
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187 if (logins_stalled) { |
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188 /* processes were created successfully */ |
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189 i_info("Created login processes successfully, unstalling"); |
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190 |
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191 logins_stalled = FALSE; |
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192 timeout_remove(&to); |
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193 to = timeout_add(1000, login_processes_start_missing, NULL); |
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194 } |
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195 } |
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196 |
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197 static void |
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198 login_process_set_state(struct login_process *p, enum master_login_state state) |
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199 { |
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200 if (state == p->state || state > LOGIN_STATE_COUNT || |
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201 (state < p->state && p->group->set->login_process_per_connection)) { |
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202 i_error("login: tried to change state %d -> %d " |
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203 "(if you can't login at all, see src/lib/fdpass.c)", |
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204 p->state, state); |
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205 login_process_destroy(p); |
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206 return; |
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207 } |
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208 |
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209 if (state == LOGIN_STATE_LISTENING) { |
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210 process_mark_listening(p); |
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211 } else { |
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212 process_mark_nonlistening(p, state); |
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213 } |
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214 |
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215 p->state = state; |
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216 } |
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217 |
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218 static void login_process_groups_create(void) |
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219 { |
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220 struct server_settings *server; |
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221 |
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222 for (server = settings_root; server != NULL; server = server->next) { |
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223 if (server->imap != NULL) |
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224 login_group_create(server->imap); |
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225 if (server->pop3 != NULL) |
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226 login_group_create(server->pop3); |
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227 } |
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228 } |
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229 |
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230 static struct login_group * |
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231 login_group_process_find(const char *name, enum mail_protocol protocol) |
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232 { |
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233 struct login_group *group; |
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234 |
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235 if (login_groups == NULL) |
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236 login_process_groups_create(); |
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237 |
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238 for (group = login_groups; group != NULL; group = group->next) { |
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239 if (strcmp(group->set->server->name, name) == 0 && |
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240 group->set->protocol == protocol) |
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241 return group; |
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242 } |
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243 |
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244 return NULL; |
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245 } |
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246 |
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247 static bool login_process_read_group(struct login_process *p) |
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248 { |
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249 struct login_group *group; |
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250 const char *name, *proto; |
5089 | 251 unsigned char buf[256]; |
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252 enum mail_protocol protocol; |
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253 unsigned int len; |
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254 ssize_t ret; |
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255 |
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256 /* read length */ |
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257 ret = read(p->fd, buf, 1); |
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258 if (ret != 1) |
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259 len = 0; |
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260 else { |
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261 len = buf[0]; |
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262 if (len >= sizeof(buf)) { |
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263 i_error("login: Server name length too large"); |
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264 return FALSE; |
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265 } |
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266 |
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267 ret = read(p->fd, buf, len); |
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268 } |
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269 |
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270 if (ret < 0) |
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271 i_error("login: read() failed: %m"); |
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272 else if (len == 0 || (size_t)ret != len) |
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273 i_error("login: Server name wasn't sent"); |
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274 else { |
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275 name = t_strndup(buf, len); |
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276 proto = strchr(name, '/'); |
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277 if (proto == NULL) { |
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278 proto = name; |
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279 name = "default"; |
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280 } else { |
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281 name = t_strdup_until(name, proto++); |
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282 } |
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283 |
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284 if (strcmp(proto, "imap") == 0) |
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285 protocol = MAIL_PROTOCOL_IMAP; |
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286 else if (strcmp(proto, "pop3") == 0) |
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287 protocol = MAIL_PROTOCOL_POP3; |
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288 else { |
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289 i_error("login: Unknown protocol '%s'", proto); |
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290 return FALSE; |
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291 } |
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292 |
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293 group = login_group_process_find(name, protocol); |
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294 if (group == NULL) { |
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295 i_error("login: Unknown server name '%s'", name); |
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296 return FALSE; |
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297 } |
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298 |
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299 p->group = group; |
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300 return login_process_init_group(p); |
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301 } |
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302 return FALSE; |
614
e60620644af3
login_process_per_connection = yes scales now better when multiple users are
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303 } |
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304 |
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305 static int |
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306 login_read_request(struct login_process *p, struct master_login_request *req, |
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307 int *client_fd_r) |
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308 { |
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309 struct stat st; |
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310 ssize_t ret; |
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311 |
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312 *client_fd_r = -1; |
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313 |
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314 ret = fd_read(p->fd, req, sizeof(*req), client_fd_r); |
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315 if (ret >= (ssize_t)sizeof(req->version) && |
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316 req->version != MASTER_LOGIN_PROTOCOL_VERSION) { |
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317 i_error("login: Protocol version mismatch " |
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318 "(mixed old and new binaries?)"); |
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319 return -1; |
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320 } |
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321 |
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322 if (ret != sizeof(*req)) { |
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323 if (ret == 0) { |
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324 /* disconnected, ie. the login process died */ |
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325 } else if (ret > 0) { |
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326 /* request wasn't fully read */ |
4734
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Error message fix for 64bit systems.
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327 i_error("login: fd_read() returned partial %d", |
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328 (int)ret); |
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329 } else { |
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330 if (errno == EAGAIN) |
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331 return 0; |
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332 |
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333 i_error("login: fd_read() failed: %m"); |
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334 } |
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335 return -1; |
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336 } |
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337 |
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338 if (req->ino == (ino_t)-1) { |
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339 if (*client_fd_r != -1) { |
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340 i_error("login: Notification request sent " |
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341 "a file descriptor"); |
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342 return -1; |
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|
343 } |
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344 return 1; |
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345 } |
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346 |
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347 if (*client_fd_r == -1) { |
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348 i_error("login: Login request missing a file descriptor"); |
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349 return -1; |
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350 } |
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351 |
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352 if (fstat(*client_fd_r, &st) < 0) { |
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353 i_error("login: fstat(mail client) failed: %m"); |
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354 return -1; |
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|
355 } |
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356 |
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357 if (st.st_ino != req->ino) { |
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358 i_error("login: Login request inode mismatch: %s != %s", |
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359 dec2str(st.st_ino), dec2str(req->ino)); |
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360 return -1; |
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|
361 } |
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362 return 1; |
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|
363 } |
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364 |
4907
5b4c9b20eba0
Replaced void *context from a lot of callbacks with the actual context
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365 static void login_process_input(struct login_process *p) |
0 | 366 { |
903
fd8888f6f037
Naming style changes, finally got tired of most of the typedefs. Also the
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367 struct auth_process *auth_process; |
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368 struct login_auth_request *authreq; |
1035
fe49ece0f3ea
We have now separate "userdb" and "passdb". They aren't tied to each others
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369 struct master_login_request req; |
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370 int client_fd; |
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371 ssize_t ret; |
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372 |
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373 if (p->group == NULL) { |
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374 /* we want to read the group */ |
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375 if (!login_process_read_group(p)) |
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376 login_process_destroy(p); |
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|
377 return; |
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|
378 } |
0 | 379 |
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380 ret = login_read_request(p, &req, &client_fd); |
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381 if (ret == 0) |
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|
382 return; |
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|
383 if (ret < 0) { |
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384 if (client_fd != -1) { |
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385 if (close(client_fd) < 0) |
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386 i_error("login: close(mail client) failed: %m"); |
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387 } |
2779
1fd55b4341b9
Added version to login <-> master communication as well.
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diff
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|
388 login_process_destroy(p); |
1fd55b4341b9
Added version to login <-> master communication as well.
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|
389 return; |
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Added version to login <-> master communication as well.
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diff
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|
390 } |
1fd55b4341b9
Added version to login <-> master communication as well.
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diff
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|
391 |
4649
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392 if (req.ino == (ino_t)-1) { |
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393 /* state notification */ |
4538
9d9e72374164
Fixes to login process handling, especially with
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|
394 enum master_login_state state = req.tag; |
9d9e72374164
Fixes to login process handling, especially with
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|
395 |
925
2e649dec0f09
Auth and login processes send an "we're ok" reply at the end of
Timo Sirainen <tss@iki.fi>
parents:
903
diff
changeset
|
396 if (!p->initialized) { |
2e649dec0f09
Auth and login processes send an "we're ok" reply at the end of
Timo Sirainen <tss@iki.fi>
parents:
903
diff
changeset
|
397 /* initialization notify */ |
4651
2fe8f6a0bc5b
If login process dies before initialization, stall creation of them instead
Timo Sirainen <tss@iki.fi>
parents:
4649
diff
changeset
|
398 login_process_set_initialized(p); |
4665 | 399 login_process_set_initialized(p); |
925
2e649dec0f09
Auth and login processes send an "we're ok" reply at the end of
Timo Sirainen <tss@iki.fi>
parents:
903
diff
changeset
|
400 } else { |
4538
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
401 /* change "listening for new connections" status */ |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
402 login_process_set_state(p, state); |
925
2e649dec0f09
Auth and login processes send an "we're ok" reply at the end of
Timo Sirainen <tss@iki.fi>
parents:
903
diff
changeset
|
403 } |
613
1906116a62ce
Finally support for handling each login connection in it's own process.
Timo Sirainen <tss@iki.fi>
parents:
596
diff
changeset
|
404 return; |
1906116a62ce
Finally support for handling each login connection in it's own process.
Timo Sirainen <tss@iki.fi>
parents:
596
diff
changeset
|
405 } |
1906116a62ce
Finally support for handling each login connection in it's own process.
Timo Sirainen <tss@iki.fi>
parents:
596
diff
changeset
|
406 |
4661
885bef091d1a
Make sure we don't kill login processes that haven't yet even sent their
Timo Sirainen <tss@iki.fi>
parents:
4651
diff
changeset
|
407 if (!p->initialized) { |
885bef091d1a
Make sure we don't kill login processes that haven't yet even sent their
Timo Sirainen <tss@iki.fi>
parents:
4651
diff
changeset
|
408 i_error("login: trying to log in before initialization"); |
885bef091d1a
Make sure we don't kill login processes that haven't yet even sent their
Timo Sirainen <tss@iki.fi>
parents:
4651
diff
changeset
|
409 login_process_destroy(p); |
885bef091d1a
Make sure we don't kill login processes that haven't yet even sent their
Timo Sirainen <tss@iki.fi>
parents:
4651
diff
changeset
|
410 return; |
885bef091d1a
Make sure we don't kill login processes that haven't yet even sent their
Timo Sirainen <tss@iki.fi>
parents:
4651
diff
changeset
|
411 } |
885bef091d1a
Make sure we don't kill login processes that haven't yet even sent their
Timo Sirainen <tss@iki.fi>
parents:
4651
diff
changeset
|
412 |
1035
fe49ece0f3ea
We have now separate "userdb" and "passdb". They aren't tied to each others
Timo Sirainen <tss@iki.fi>
parents:
1000
diff
changeset
|
413 fd_close_on_exec(client_fd, TRUE); |
0 | 414 |
415 /* ask the cookie from the auth process */ | |
903
fd8888f6f037
Naming style changes, finally got tired of most of the typedefs. Also the
Timo Sirainen <tss@iki.fi>
parents:
876
diff
changeset
|
416 authreq = i_new(struct login_auth_request, 1); |
0 | 417 p->refcount++; |
418 authreq->process = p; | |
1035
fe49ece0f3ea
We have now separate "userdb" and "passdb". They aren't tied to each others
Timo Sirainen <tss@iki.fi>
parents:
1000
diff
changeset
|
419 authreq->tag = ++auth_id_counter; |
fe49ece0f3ea
We have now separate "userdb" and "passdb". They aren't tied to each others
Timo Sirainen <tss@iki.fi>
parents:
1000
diff
changeset
|
420 authreq->login_tag = req.tag; |
0 | 421 authreq->fd = client_fd; |
2097
4e77cb0aff21
Added %l, %r and %P variables and mail_log_prefix setting.
Timo Sirainen <tss@iki.fi>
parents:
2046
diff
changeset
|
422 authreq->local_ip = req.local_ip; |
4e77cb0aff21
Added %l, %r and %P variables and mail_log_prefix setting.
Timo Sirainen <tss@iki.fi>
parents:
2046
diff
changeset
|
423 authreq->remote_ip = req.remote_ip; |
0 | 424 |
1035
fe49ece0f3ea
We have now separate "userdb" and "passdb". They aren't tied to each others
Timo Sirainen <tss@iki.fi>
parents:
1000
diff
changeset
|
425 auth_process = auth_process_find(req.auth_pid); |
0 | 426 if (auth_process == NULL) { |
427 i_error("login: Authentication process %u doesn't exist", | |
1035
fe49ece0f3ea
We have now separate "userdb" and "passdb". They aren't tied to each others
Timo Sirainen <tss@iki.fi>
parents:
1000
diff
changeset
|
428 req.auth_pid); |
fe49ece0f3ea
We have now separate "userdb" and "passdb". They aren't tied to each others
Timo Sirainen <tss@iki.fi>
parents:
1000
diff
changeset
|
429 auth_master_callback(NULL, NULL, authreq); |
0 | 430 } else { |
1035
fe49ece0f3ea
We have now separate "userdb" and "passdb". They aren't tied to each others
Timo Sirainen <tss@iki.fi>
parents:
1000
diff
changeset
|
431 auth_process_request(auth_process, p->pid, |
fe49ece0f3ea
We have now separate "userdb" and "passdb". They aren't tied to each others
Timo Sirainen <tss@iki.fi>
parents:
1000
diff
changeset
|
432 req.auth_id, authreq); |
0 | 433 } |
434 } | |
435 | |
1055
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
436 static struct login_process * |
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
437 login_process_new(struct login_group *group, pid_t pid, int fd) |
0 | 438 { |
903
fd8888f6f037
Naming style changes, finally got tired of most of the typedefs. Also the
Timo Sirainen <tss@iki.fi>
parents:
876
diff
changeset
|
439 struct login_process *p; |
0 | 440 |
1273
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
441 i_assert(pid != 0); |
0 | 442 |
903
fd8888f6f037
Naming style changes, finally got tired of most of the typedefs. Also the
Timo Sirainen <tss@iki.fi>
parents:
876
diff
changeset
|
443 p = i_new(struct login_process, 1); |
5843
f655c4d4a419
Moved child process handling to child-process.[ch]. The hash table now uses
Timo Sirainen <tss@iki.fi>
parents:
5632
diff
changeset
|
444 p->process.type = PROCESS_TYPE_LOGIN; |
1055
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
445 p->group = group; |
4670 | 446 p->refcount = 2; /* once for fd close, another for process exit */ |
0 | 447 p->pid = pid; |
448 p->fd = fd; | |
449 p->io = io_add(fd, IO_READ, login_process_input, p); | |
764
f57c52738f90
Renamed IBuffer and OBuffer to IStream and OStream which describes their
Timo Sirainen <tss@iki.fi>
parents:
747
diff
changeset
|
450 p->output = o_stream_create_file(fd, default_pool, |
1035
fe49ece0f3ea
We have now separate "userdb" and "passdb". They aren't tied to each others
Timo Sirainen <tss@iki.fi>
parents:
1000
diff
changeset
|
451 sizeof(struct master_login_reply)*10, |
1499
e850252cdc7e
Removed I/O priorities. They were pretty much useless and were just getting
Timo Sirainen <tss@iki.fi>
parents:
1468
diff
changeset
|
452 FALSE); |
5843
f655c4d4a419
Moved child process handling to child-process.[ch]. The hash table now uses
Timo Sirainen <tss@iki.fi>
parents:
5632
diff
changeset
|
453 child_process_add(pid, &p->process); |
1273
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
454 |
4538
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
455 p->state = LOGIN_STATE_LISTENING; |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
456 |
1275
af685269ead0
login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents:
1273
diff
changeset
|
457 if (p->group != NULL) { |
4631
f5d53a684856
SIGHUP caused memory corruption
Timo Sirainen <tss@iki.fi>
parents:
4630
diff
changeset
|
458 p->group->refcount++; |
1275
af685269ead0
login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents:
1273
diff
changeset
|
459 p->group->processes++; |
af685269ead0
login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents:
1273
diff
changeset
|
460 p->group->listening_processes++; |
af685269ead0
login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents:
1273
diff
changeset
|
461 } |
0 | 462 return p; |
463 } | |
464 | |
4538
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
465 static void login_process_exited(struct login_process *p) |
613
1906116a62ce
Finally support for handling each login connection in it's own process.
Timo Sirainen <tss@iki.fi>
parents:
596
diff
changeset
|
466 { |
4538
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
467 if (p->group != NULL) |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
468 p->group->processes--; |
1275
af685269ead0
login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents:
1273
diff
changeset
|
469 |
4538
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
470 login_process_unref(p); |
613
1906116a62ce
Finally support for handling each login connection in it's own process.
Timo Sirainen <tss@iki.fi>
parents:
596
diff
changeset
|
471 } |
1906116a62ce
Finally support for handling each login connection in it's own process.
Timo Sirainen <tss@iki.fi>
parents:
596
diff
changeset
|
472 |
903
fd8888f6f037
Naming style changes, finally got tired of most of the typedefs. Also the
Timo Sirainen <tss@iki.fi>
parents:
876
diff
changeset
|
473 static void login_process_destroy(struct login_process *p) |
0 | 474 { |
475 if (p->destroyed) | |
476 return; | |
477 p->destroyed = TRUE; | |
478 | |
4651
2fe8f6a0bc5b
If login process dies before initialization, stall creation of them instead
Timo Sirainen <tss@iki.fi>
parents:
4649
diff
changeset
|
479 if (!p->initialized) |
2fe8f6a0bc5b
If login process dies before initialization, stall creation of them instead
Timo Sirainen <tss@iki.fi>
parents:
4649
diff
changeset
|
480 login_processes_stall(); |
1275
af685269ead0
login: Wait until we're connected to auth process before executing command
Timo Sirainen <tss@iki.fi>
parents:
1273
diff
changeset
|
481 |
764
f57c52738f90
Renamed IBuffer and OBuffer to IStream and OStream which describes their
Timo Sirainen <tss@iki.fi>
parents:
747
diff
changeset
|
482 o_stream_close(p->output); |
3879
928229f8b3e6
deinit, unref, destroy, close, free, etc. functions now take a pointer to
Timo Sirainen <tss@iki.fi>
parents:
3863
diff
changeset
|
483 io_remove(&p->io); |
805
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
801
diff
changeset
|
484 if (close(p->fd) < 0) |
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
801
diff
changeset
|
485 i_error("close(login) failed: %m"); |
0 | 486 |
4538
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
487 process_mark_nonlistening(p, LOGIN_STATE_FULL_LOGINS); |
613
1906116a62ce
Finally support for handling each login connection in it's own process.
Timo Sirainen <tss@iki.fi>
parents:
596
diff
changeset
|
488 |
4538
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
489 if (p->inetd_child) |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
490 login_process_exited(p); |
4670 | 491 login_process_unref(p); |
0 | 492 } |
493 | |
903
fd8888f6f037
Naming style changes, finally got tired of most of the typedefs. Also the
Timo Sirainen <tss@iki.fi>
parents:
876
diff
changeset
|
494 static void login_process_unref(struct login_process *p) |
0 | 495 { |
4670 | 496 i_assert(p->refcount > 0); |
0 | 497 if (--p->refcount > 0) |
498 return; | |
499 | |
4631
f5d53a684856
SIGHUP caused memory corruption
Timo Sirainen <tss@iki.fi>
parents:
4630
diff
changeset
|
500 if (p->group != NULL) |
f5d53a684856
SIGHUP caused memory corruption
Timo Sirainen <tss@iki.fi>
parents:
4630
diff
changeset
|
501 login_group_unref(p->group); |
f5d53a684856
SIGHUP caused memory corruption
Timo Sirainen <tss@iki.fi>
parents:
4630
diff
changeset
|
502 |
3879
928229f8b3e6
deinit, unref, destroy, close, free, etc. functions now take a pointer to
Timo Sirainen <tss@iki.fi>
parents:
3863
diff
changeset
|
503 o_stream_unref(&p->output); |
0 | 504 i_free(p); |
505 } | |
506 | |
1273
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
507 static void login_process_init_env(struct login_group *group, pid_t pid) |
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
508 { |
1610
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
509 struct settings *set = group->set; |
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
510 |
2000
c7c19f5071c3
Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents:
1997
diff
changeset
|
511 child_process_init_env(); |
1273
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
512 |
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
513 /* setup access environment - needs to be done after |
3692 | 514 clean_child_process() since it clears environment. Don't set user |
515 parameter since we don't want to call initgroups() for login | |
3691
e167b71e37e3
Don't call initgroups() at the start of login processes.
Timo Sirainen <tss@iki.fi>
parents:
3607
diff
changeset
|
516 processes. */ |
e167b71e37e3
Don't call initgroups() at the start of login processes.
Timo Sirainen <tss@iki.fi>
parents:
3607
diff
changeset
|
517 restrict_access_set_env(NULL, set->login_uid, |
1724
b3526668de78
Make sure auth process and login process don't share uids.
Timo Sirainen <tss@iki.fi>
parents:
1610
diff
changeset
|
518 set->server->login_gid, |
1506
e7c627bacaaf
Allow first_valid_gid to be 0. Drop any supplementary groups not in valid
Timo Sirainen <tss@iki.fi>
parents:
1499
diff
changeset
|
519 set->login_chroot ? set->login_dir : NULL, |
2141
8690d2000e33
Added mail_extra_groups setting.
Timo Sirainen <tss@iki.fi>
parents:
2097
diff
changeset
|
520 0, 0, NULL); |
1273
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
521 |
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
522 env_put("DOVECOT_MASTER=1"); |
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
523 |
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
524 if (!set->ssl_disable) { |
4388
af61031c746f
Settings parser nowadays returns "" instead of NULL when it reads an empty
Timo Sirainen <tss@iki.fi>
parents:
4353
diff
changeset
|
525 const char *ssl_key_password; |
3889
c7462001227b
Added support for password protected SSL private keys. The password can be
Timo Sirainen <tss@iki.fi>
parents:
3879
diff
changeset
|
526 |
4388
af61031c746f
Settings parser nowadays returns "" instead of NULL when it reads an empty
Timo Sirainen <tss@iki.fi>
parents:
4353
diff
changeset
|
527 ssl_key_password = *set->ssl_key_password != '\0' ? |
3889
c7462001227b
Added support for password protected SSL private keys. The password can be
Timo Sirainen <tss@iki.fi>
parents:
3879
diff
changeset
|
528 set->ssl_key_password : ssl_manual_key_password; |
c7462001227b
Added support for password protected SSL private keys. The password can be
Timo Sirainen <tss@iki.fi>
parents:
3879
diff
changeset
|
529 |
4388
af61031c746f
Settings parser nowadays returns "" instead of NULL when it reads an empty
Timo Sirainen <tss@iki.fi>
parents:
4353
diff
changeset
|
530 if (*set->ssl_ca_file != '\0') { |
1907
190f1d315ce6
Added setting ssl_ca_file, patch by Zach Bagnall
Timo Sirainen <tss@iki.fi>
parents:
1897
diff
changeset
|
531 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
|
532 set->ssl_ca_file, NULL)); |
190f1d315ce6
Added setting ssl_ca_file, patch by Zach Bagnall
Timo Sirainen <tss@iki.fi>
parents:
1897
diff
changeset
|
533 } |
1273
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
534 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
|
535 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
|
536 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
|
537 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
|
538 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
|
539 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
|
540 env_put("SSL_PARAM_FILE="SSL_PARAMETERS_FILENAME); |
4388
af61031c746f
Settings parser nowadays returns "" instead of NULL when it reads an empty
Timo Sirainen <tss@iki.fi>
parents:
4353
diff
changeset
|
541 if (*set->ssl_cipher_list != '\0') { |
1996 | 542 env_put(t_strconcat("SSL_CIPHER_LIST=", |
543 set->ssl_cipher_list, NULL)); | |
544 } | |
1997
1d0985f6bdd9
Added ssl_verify_client_cert setting.
Timo Sirainen <tss@iki.fi>
parents:
1996
diff
changeset
|
545 if (set->ssl_verify_client_cert) |
1d0985f6bdd9
Added ssl_verify_client_cert setting.
Timo Sirainen <tss@iki.fi>
parents:
1996
diff
changeset
|
546 env_put("SSL_VERIFY_CLIENT_CERT=1"); |
1273
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
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parents:
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diff
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|
547 } |
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
548 |
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
549 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
|
550 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
|
551 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
|
552 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
|
553 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
|
554 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
|
555 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
|
556 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
|
557 |
1610
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
558 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
|
559 env_put("PROCESS_PER_CONNECTION=1"); |
4668 | 560 env_put("MAX_CONNECTIONS=1"); |
1273
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
561 } else { |
4538
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
562 env_put(t_strdup_printf("MAX_CONNECTIONS=%u", |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
563 set->login_max_connections)); |
1273
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
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diff
changeset
|
564 } |
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
565 |
2674
857f5f7b512b
Added login_greeting and login_greeting_capability settings.
Timo Sirainen <tss@iki.fi>
parents:
2329
diff
changeset
|
566 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
|
567 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
|
568 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
|
569 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
|
570 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
|
571 if (set->login_greeting_capability) |
857f5f7b512b
Added login_greeting and login_greeting_capability settings.
Timo Sirainen <tss@iki.fi>
parents:
2329
diff
changeset
|
572 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
|
573 |
5843
f655c4d4a419
Moved child process handling to child-process.[ch]. The hash table now uses
Timo Sirainen <tss@iki.fi>
parents:
5632
diff
changeset
|
574 if (group->mail_process_type == PROCESS_TYPE_IMAP) { |
4197
c3ded5b815aa
If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents:
4148
diff
changeset
|
575 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
|
576 *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
|
577 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
|
578 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
|
579 } |
1273
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
580 } |
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
581 |
1055
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
582 static pid_t create_login_process(struct login_group *group) |
0 | 583 { |
2046 | 584 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
|
585 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
|
586 const char *prefix; |
0 | 587 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
|
588 int fd[2], log_fd; |
0 | 589 |
1610
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
590 if (group->set->login_uid == 0) |
0 | 591 i_fatal("Login process must not run as root"); |
592 | |
593 /* 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
|
594 if (socketpair(AF_UNIX, SOCK_STREAM, 0, fd) < 0) { |
0 | 595 i_error("socketpair() failed: %m"); |
596 return -1; | |
597 } | |
598 | |
3083
a20882c4f092
Disable log throttlong for auth process, and for login processes if
Timo Sirainen <tss@iki.fi>
parents:
2886
diff
changeset
|
599 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
|
600 group->set->login_process_per_connection ? 10 : 0; |
5632
2ed5abe3aaef
Moved SSL listen fd to 4. stdout is now redirected to log.
Timo Sirainen <tss@iki.fi>
parents:
5358
diff
changeset
|
601 log_fd = log_create_pipe(&log, /*max_log_lines_per_sec*/0); |
2000
c7c19f5071c3
Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents:
1997
diff
changeset
|
602 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
|
603 pid = -1; |
c7c19f5071c3
Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents:
1997
diff
changeset
|
604 else { |
c7c19f5071c3
Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents:
1997
diff
changeset
|
605 pid = fork(); |
c7c19f5071c3
Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents:
1997
diff
changeset
|
606 if (pid < 0) |
c7c19f5071c3
Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents:
1997
diff
changeset
|
607 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
|
608 } |
c7c19f5071c3
Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents:
1997
diff
changeset
|
609 |
0 | 610 if (pid < 0) { |
611 (void)close(fd[0]); | |
612 (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
|
613 (void)close(log_fd); |
0 | 614 return -1; |
615 } | |
616 | |
617 if (pid != 0) { | |
618 /* master */ | |
2046 | 619 prefix = t_strdup_printf("%s-login: ", |
5843
f655c4d4a419
Moved child process handling to child-process.[ch]. The hash table now uses
Timo Sirainen <tss@iki.fi>
parents:
5632
diff
changeset
|
620 process_names[group->mail_process_type]); |
2046 | 621 log_set_prefix(log, prefix); |
622 | |
1273
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
623 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
|
624 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
|
625 (void)login_process_new(group, pid, fd[0]); |
0 | 626 (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
|
627 (void)close(log_fd); |
0 | 628 return pid; |
629 } | |
630 | |
2046 | 631 prefix = t_strdup_printf("master-%s-login: ", |
5843
f655c4d4a419
Moved child process handling to child-process.[ch]. The hash table now uses
Timo Sirainen <tss@iki.fi>
parents:
5632
diff
changeset
|
632 process_names[group->mail_process_type]); |
2046 | 633 log_set_prefix(log, prefix); |
634 | |
0 | 635 /* 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
|
636 if (dup2(group->set->listen_fd, LOGIN_LISTEN_FD) < 0) |
2046 | 637 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
|
638 fd_close_on_exec(LOGIN_LISTEN_FD, FALSE); |
0 | 639 |
640 /* 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
|
641 if (dup2(group->set->ssl_listen_fd, LOGIN_SSL_LISTEN_FD) < 0) |
2046 | 642 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
|
643 fd_close_on_exec(LOGIN_SSL_LISTEN_FD, FALSE); |
0 | 644 |
1273
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
645 /* 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
|
646 if (dup2(fd[1], LOGIN_MASTER_SOCKET_FD) < 0) |
2046 | 647 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
|
648 fd_close_on_exec(LOGIN_MASTER_SOCKET_FD, FALSE); |
0 | 649 |
5632
2ed5abe3aaef
Moved SSL listen fd to 4. stdout is now redirected to log.
Timo Sirainen <tss@iki.fi>
parents:
5358
diff
changeset
|
650 if (dup2(log_fd, STDERR_FILENO) < 0) |
2046 | 651 i_fatal("dup2(stderr) failed: %m"); |
5632
2ed5abe3aaef
Moved SSL listen fd to 4. stdout is now redirected to log.
Timo Sirainen <tss@iki.fi>
parents:
5358
diff
changeset
|
652 fd_close_on_exec(STDERR_FILENO, FALSE); |
2ed5abe3aaef
Moved SSL listen fd to 4. stdout is now redirected to log.
Timo Sirainen <tss@iki.fi>
parents:
5358
diff
changeset
|
653 |
2ed5abe3aaef
Moved SSL listen fd to 4. stdout is now redirected to log.
Timo Sirainen <tss@iki.fi>
parents:
5358
diff
changeset
|
654 /* redirect writes to stdout also to error log. For example OpenSSL |
2ed5abe3aaef
Moved SSL listen fd to 4. stdout is now redirected to log.
Timo Sirainen <tss@iki.fi>
parents:
5358
diff
changeset
|
655 can be made to log its debug messages to stdout. */ |
2ed5abe3aaef
Moved SSL listen fd to 4. stdout is now redirected to log.
Timo Sirainen <tss@iki.fi>
parents:
5358
diff
changeset
|
656 if (dup2(log_fd, STDOUT_FILENO) < 0) |
2ed5abe3aaef
Moved SSL listen fd to 4. stdout is now redirected to log.
Timo Sirainen <tss@iki.fi>
parents:
5358
diff
changeset
|
657 i_fatal("dup2(stdout) failed: %m"); |
2ed5abe3aaef
Moved SSL listen fd to 4. stdout is now redirected to log.
Timo Sirainen <tss@iki.fi>
parents:
5358
diff
changeset
|
658 fd_close_on_exec(STDOUT_FILENO, FALSE); |
2000
c7c19f5071c3
Write all logging through master process. Fixes problems with log rotation,
Timo Sirainen <tss@iki.fi>
parents:
1997
diff
changeset
|
659 |
0 | 660 (void)close(fd[0]); |
661 (void)close(fd[1]); | |
662 | |
1273
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
parents:
1237
diff
changeset
|
663 login_process_init_env(group, getpid()); |
0 | 664 |
1610
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
665 if (!group->set->login_chroot) { |
0 | 666 /* 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
|
667 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
|
668 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
|
669 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
|
670 } |
0 | 671 } |
672 | |
1610
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
673 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
|
674 |
801
86224ff16bf6
Drop root privileges earlier. Close syslog more later in imap-master when
Timo Sirainen <tss@iki.fi>
parents:
791
diff
changeset
|
675 /* make sure we don't leak syslog fd, but do it last so that |
86224ff16bf6
Drop root privileges earlier. Close syslog more later in imap-master when
Timo Sirainen <tss@iki.fi>
parents:
791
diff
changeset
|
676 any errors above will be logged */ |
86224ff16bf6
Drop root privileges earlier. Close syslog more later in imap-master when
Timo Sirainen <tss@iki.fi>
parents:
791
diff
changeset
|
677 closelog(); |
86224ff16bf6
Drop root privileges earlier. Close syslog more later in imap-master when
Timo Sirainen <tss@iki.fi>
parents:
791
diff
changeset
|
678 |
2886
634cf6aa34d1
Allow running all executables with parameters.
Timo Sirainen <tss@iki.fi>
parents:
2779
diff
changeset
|
679 client_process_exec(group->set->login_executable, ""); |
1441
a83ce8395316
If exec() fails, show the full path rather than argv[0]
Timo Sirainen <tss@iki.fi>
parents:
1398
diff
changeset
|
680 i_fatal_status(FATAL_EXEC, "execv(%s) failed: %m", |
1610
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
681 group->set->login_executable); |
0 | 682 return -1; |
683 } | |
684 | |
5843
f655c4d4a419
Moved child process handling to child-process.[ch]. The hash table now uses
Timo Sirainen <tss@iki.fi>
parents:
5632
diff
changeset
|
685 static void |
5846
21e529b8a701
Initial implementation for mail_max_user_connections setting.
Timo Sirainen <tss@iki.fi>
parents:
5843
diff
changeset
|
686 login_process_destroyed(struct child_process *process, |
21e529b8a701
Initial implementation for mail_max_user_connections setting.
Timo Sirainen <tss@iki.fi>
parents:
5843
diff
changeset
|
687 pid_t pid __attr_unused__, bool abnormal_exit) |
615
0d852af6842e
Master process generates DH/RSA parameters now and stores them into file
Timo Sirainen <tss@iki.fi>
parents:
614
diff
changeset
|
688 { |
5843
f655c4d4a419
Moved child process handling to child-process.[ch]. The hash table now uses
Timo Sirainen <tss@iki.fi>
parents:
5632
diff
changeset
|
689 struct login_process *p = (struct login_process *)process; |
1055
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
690 |
4538
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
691 i_assert(!p->inetd_child); |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
692 |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
693 if (abnormal_exit) { |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
694 /* don't start raising the process count if they're dying all |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
695 the time */ |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
696 if (p->group != NULL) |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
697 p->group->wanted_processes_count = 0; |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
698 } |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
699 |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
700 login_process_exited(p); |
615
0d852af6842e
Master process generates DH/RSA parameters now and stores them into file
Timo Sirainen <tss@iki.fi>
parents:
614
diff
changeset
|
701 } |
0d852af6842e
Master process generates DH/RSA parameters now and stores them into file
Timo Sirainen <tss@iki.fi>
parents:
614
diff
changeset
|
702 |
4670 | 703 void login_processes_destroy_all(void) |
635
90a65c017bf0
SIGHUP reloads now settings. Logged in clients are left untouched, but
Timo Sirainen <tss@iki.fi>
parents:
615
diff
changeset
|
704 { |
1897
1e6ed8045f2b
Changed hash_foreach() to iterator.
Timo Sirainen <tss@iki.fi>
parents:
1724
diff
changeset
|
705 struct hash_iterate_context *iter; |
1e6ed8045f2b
Changed hash_foreach() to iterator.
Timo Sirainen <tss@iki.fi>
parents:
1724
diff
changeset
|
706 void *key, *value; |
1e6ed8045f2b
Changed hash_foreach() to iterator.
Timo Sirainen <tss@iki.fi>
parents:
1724
diff
changeset
|
707 |
1e6ed8045f2b
Changed hash_foreach() to iterator.
Timo Sirainen <tss@iki.fi>
parents:
1724
diff
changeset
|
708 iter = hash_iterate_init(processes); |
5843
f655c4d4a419
Moved child process handling to child-process.[ch]. The hash table now uses
Timo Sirainen <tss@iki.fi>
parents:
5632
diff
changeset
|
709 while (hash_iterate(iter, &key, &value)) { |
f655c4d4a419
Moved child process handling to child-process.[ch]. The hash table now uses
Timo Sirainen <tss@iki.fi>
parents:
5632
diff
changeset
|
710 struct login_process *p = value; |
f655c4d4a419
Moved child process handling to child-process.[ch]. The hash table now uses
Timo Sirainen <tss@iki.fi>
parents:
5632
diff
changeset
|
711 |
f655c4d4a419
Moved child process handling to child-process.[ch]. The hash table now uses
Timo Sirainen <tss@iki.fi>
parents:
5632
diff
changeset
|
712 if (p->process.type == PROCESS_TYPE_LOGIN) |
f655c4d4a419
Moved child process handling to child-process.[ch]. The hash table now uses
Timo Sirainen <tss@iki.fi>
parents:
5632
diff
changeset
|
713 login_process_destroy(p); |
f655c4d4a419
Moved child process handling to child-process.[ch]. The hash table now uses
Timo Sirainen <tss@iki.fi>
parents:
5632
diff
changeset
|
714 } |
1897
1e6ed8045f2b
Changed hash_foreach() to iterator.
Timo Sirainen <tss@iki.fi>
parents:
1724
diff
changeset
|
715 hash_iterate_deinit(iter); |
635
90a65c017bf0
SIGHUP reloads now settings. Logged in clients are left untouched, but
Timo Sirainen <tss@iki.fi>
parents:
615
diff
changeset
|
716 |
1055
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
717 while (login_groups != NULL) { |
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
718 struct login_group *group = login_groups; |
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
719 |
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
720 login_groups = group->next; |
4631
f5d53a684856
SIGHUP caused memory corruption
Timo Sirainen <tss@iki.fi>
parents:
4630
diff
changeset
|
721 login_group_unref(group); |
1055
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
722 } |
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
723 } |
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
724 |
4538
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
725 static void login_processes_notify_group(struct login_group *group) |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
726 { |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
727 struct hash_iterate_context *iter; |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
728 struct master_login_reply reply; |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
729 void *key, *value; |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
730 |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
731 memset(&reply, 0, sizeof(reply)); |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
732 |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
733 iter = hash_iterate_init(processes); |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
734 while (hash_iterate(iter, &key, &value)) { |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
735 struct login_process *p = value; |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
736 |
5843
f655c4d4a419
Moved child process handling to child-process.[ch]. The hash table now uses
Timo Sirainen <tss@iki.fi>
parents:
5632
diff
changeset
|
737 if (p->process.type == PROCESS_TYPE_LOGIN && p->group == group) |
4538
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
738 (void)o_stream_send(p->output, &reply, sizeof(reply)); |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
739 } |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
740 hash_iterate_deinit(iter); |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
741 } |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
742 |
4148
f60d73c96618
If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents:
3901
diff
changeset
|
743 static int login_group_start_missings(struct login_group *group) |
1055
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
744 { |
4538
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
745 if (group->set->login_process_per_connection && |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
746 group->processes >= group->set->login_max_processes_count && |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
747 group->listening_processes == 0) { |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
748 /* destroy the oldest listening process. non-listening |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
749 processes are logged in users who we don't want to kick out |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
750 because someone's started flooding */ |
4661
885bef091d1a
Make sure we don't kill login processes that haven't yet even sent their
Timo Sirainen <tss@iki.fi>
parents:
4651
diff
changeset
|
751 if (group->oldest_prelogin_process != NULL && |
885bef091d1a
Make sure we don't kill login processes that haven't yet even sent their
Timo Sirainen <tss@iki.fi>
parents:
4651
diff
changeset
|
752 group->oldest_prelogin_process->initialized) |
4538
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
753 login_process_destroy(group->oldest_prelogin_process); |
1055
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
754 } |
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
755 |
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
756 /* we want to respond fast when multiple clients are connecting |
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
757 at once, but we also want to prevent fork-bombing. use the |
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
758 same method as apache: check once a second if we need new |
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
759 processes. if yes and we've used all the existing processes, |
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
760 double their amount (unless we've hit the high limit). |
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
761 Then for each second that didn't use all existing processes, |
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
762 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:
1506
diff
changeset
|
763 if (group->wanted_processes_count < group->set->login_processes_count) { |
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
764 group->wanted_processes_count = |
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
765 group->set->login_processes_count; |
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
766 } else if (group->listening_processes == 0) |
1055
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
767 group->wanted_processes_count *= 2; |
1610
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
768 else if (group->wanted_processes_count > |
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
769 group->set->login_processes_count) |
1055
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
770 group->wanted_processes_count--; |
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
771 |
4538
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
772 while (group->listening_processes < group->wanted_processes_count && |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
773 group->processes < group->set->login_max_processes_count) { |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
774 if (create_login_process(group) < 0) |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
775 return -1; |
1610
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
776 } |
1055
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
777 |
4538
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
778 if (group->listening_processes == 0 && |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
779 !group->set->login_process_per_connection) { |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
780 /* we've reached our limit. notify the processes to start |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
781 listening again which makes them kill some of their |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
782 oldest clients when accepting the next connection */ |
9d9e72374164
Fixes to login process handling, especially with
Timo Sirainen <tss@iki.fi>
parents:
4388
diff
changeset
|
783 login_processes_notify_group(group); |
4148
f60d73c96618
If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents:
3901
diff
changeset
|
784 } |
f60d73c96618
If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents:
3901
diff
changeset
|
785 return 0; |
635
90a65c017bf0
SIGHUP reloads now settings. Logged in clients are left untouched, but
Timo Sirainen <tss@iki.fi>
parents:
615
diff
changeset
|
786 } |
90a65c017bf0
SIGHUP reloads now settings. Logged in clients are left untouched, but
Timo Sirainen <tss@iki.fi>
parents:
615
diff
changeset
|
787 |
4148
f60d73c96618
If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents:
3901
diff
changeset
|
788 static void login_processes_stall(void) |
f60d73c96618
If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents:
3901
diff
changeset
|
789 { |
4665 | 790 if (logins_stalled || IS_INETD()) |
4148
f60d73c96618
If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents:
3901
diff
changeset
|
791 return; |
f60d73c96618
If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents:
3901
diff
changeset
|
792 |
f60d73c96618
If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents:
3901
diff
changeset
|
793 i_error("Temporary failure in creating login processes, " |
f60d73c96618
If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents:
3901
diff
changeset
|
794 "slowing down for now"); |
f60d73c96618
If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents:
3901
diff
changeset
|
795 logins_stalled = TRUE; |
f60d73c96618
If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents:
3901
diff
changeset
|
796 |
f60d73c96618
If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents:
3901
diff
changeset
|
797 timeout_remove(&to); |
f60d73c96618
If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents:
3901
diff
changeset
|
798 to = timeout_add(60*1000, login_processes_start_missing, NULL); |
f60d73c96618
If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents:
3901
diff
changeset
|
799 } |
f60d73c96618
If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents:
3901
diff
changeset
|
800 |
903
fd8888f6f037
Naming style changes, finally got tired of most of the typedefs. Also the
Timo Sirainen <tss@iki.fi>
parents:
876
diff
changeset
|
801 static void |
1036
f782b3319553
Removed useless parameters from io_callback_t and timeout_callback_t.
Timo Sirainen <tss@iki.fi>
parents:
1035
diff
changeset
|
802 login_processes_start_missing(void *context __attr_unused__) |
0 | 803 { |
1055
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
804 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
|
805 |
5136
86625faa49b5
Start auth processes immediately at startup, not after one second delay.
Timo Sirainen <tss@iki.fi>
parents:
5089
diff
changeset
|
806 if (!have_initialized_auth_processes) { |
86625faa49b5
Start auth processes immediately at startup, not after one second delay.
Timo Sirainen <tss@iki.fi>
parents:
5089
diff
changeset
|
807 /* don't create login processes before at least one auth |
86625faa49b5
Start auth processes immediately at startup, not after one second delay.
Timo Sirainen <tss@iki.fi>
parents:
5089
diff
changeset
|
808 process has finished initializing */ |
86625faa49b5
Start auth processes immediately at startup, not after one second delay.
Timo Sirainen <tss@iki.fi>
parents:
5089
diff
changeset
|
809 return; |
86625faa49b5
Start auth processes immediately at startup, not after one second delay.
Timo Sirainen <tss@iki.fi>
parents:
5089
diff
changeset
|
810 } |
86625faa49b5
Start auth processes immediately at startup, not after one second delay.
Timo Sirainen <tss@iki.fi>
parents:
5089
diff
changeset
|
811 |
1610
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
812 if (login_groups == NULL) |
6850142c4e25
New configuration file code. Some syntax changes, but tries to be somewhat
Timo Sirainen <tss@iki.fi>
parents:
1506
diff
changeset
|
813 login_process_groups_create(); |
614
e60620644af3
login_process_per_connection = yes scales now better when multiple users are
Timo Sirainen <tss@iki.fi>
parents:
613
diff
changeset
|
814 |
4148
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If master process runs out of file descriptors, try to handle it more nicely
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815 for (group = login_groups; group != NULL; group = group->next) { |
f60d73c96618
If master process runs out of file descriptors, try to handle it more nicely
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816 if (login_group_start_missings(group) < 0) { |
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|
817 login_processes_stall(); |
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If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents:
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|
818 return; |
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If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
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|
819 } |
f60d73c96618
If master process runs out of file descriptors, try to handle it more nicely
Timo Sirainen <tss@iki.fi>
parents:
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|
820 } |
0 | 821 } |
822 | |
1273
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823 static int login_process_send_env(struct login_process *p) |
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Timo Sirainen <tss@iki.fi>
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824 { |
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Somewhat working code to support loading Dovecot from inetd and such. It
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825 extern char **environ; |
2cf2e08a6ee9
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diff
changeset
|
826 char **env; |
3607
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Several fixes to make running from inetd working again
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|
827 ssize_t len; |
1273
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828 int ret = 0; |
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|
829 |
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830 /* this will clear our environment. luckily we don't need it. */ |
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|
831 login_process_init_env(p->group, p->pid); |
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832 |
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Somewhat working code to support loading Dovecot from inetd and such. It
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|
833 for (env = environ; *env != NULL; env++) { |
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
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parents:
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|
834 len = strlen(*env); |
2cf2e08a6ee9
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changeset
|
835 |
3607
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Several fixes to make running from inetd working again
Timo Sirainen <tss@iki.fi>
parents:
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changeset
|
836 if (o_stream_send(p->output, *env, len) != len || |
1273
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Somewhat working code to support loading Dovecot from inetd and such. It
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|
837 o_stream_send(p->output, "\n", 1) != 1) { |
2cf2e08a6ee9
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838 ret = -1; |
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|
839 break; |
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
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840 } |
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|
841 } |
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|
842 |
3607
a2dd3d895e00
Several fixes to make running from inetd working again
Timo Sirainen <tss@iki.fi>
parents:
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diff
changeset
|
843 if (!p->group->set->login_chroot) { |
a2dd3d895e00
Several fixes to make running from inetd working again
Timo Sirainen <tss@iki.fi>
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changeset
|
844 /* if we're not chrooting, we need to tell login process |
a2dd3d895e00
Several fixes to make running from inetd working again
Timo Sirainen <tss@iki.fi>
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|
845 where its base directory is */ |
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Several fixes to make running from inetd working again
Timo Sirainen <tss@iki.fi>
parents:
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diff
changeset
|
846 const char *str = t_strdup_printf("LOGIN_DIR=%s\n", |
a2dd3d895e00
Several fixes to make running from inetd working again
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diff
changeset
|
847 p->group->set->login_dir); |
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Several fixes to make running from inetd working again
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diff
changeset
|
848 len = strlen(str); |
a2dd3d895e00
Several fixes to make running from inetd working again
Timo Sirainen <tss@iki.fi>
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changeset
|
849 if (o_stream_send(p->output, str, len) != len) |
a2dd3d895e00
Several fixes to make running from inetd working again
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changeset
|
850 ret = -1; |
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Several fixes to make running from inetd working again
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changeset
|
851 } |
a2dd3d895e00
Several fixes to make running from inetd working again
Timo Sirainen <tss@iki.fi>
parents:
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diff
changeset
|
852 |
1273
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Somewhat working code to support loading Dovecot from inetd and such. It
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changeset
|
853 if (ret == 0 && o_stream_send(p->output, "\n", 1) != 1) |
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|
854 ret = -1; |
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changeset
|
855 |
2cf2e08a6ee9
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changeset
|
856 env_clean(); |
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Timo Sirainen <tss@iki.fi>
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changeset
|
857 return ret; |
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|
858 } |
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
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changeset
|
859 |
3863
55df57c028d4
Added "bool" type and changed all ints that were used as booleans to bool.
Timo Sirainen <tss@iki.fi>
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3692
diff
changeset
|
860 static bool login_process_init_group(struct login_process *p) |
1275
af685269ead0
login: Wait until we're connected to auth process before executing command
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|
861 { |
4740
0a1fa29ac87f
inetd logins kept crashing dovecot master.
Timo Sirainen <tss@iki.fi>
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diff
changeset
|
862 p->group->refcount++; |
1275
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|
863 p->group->processes++; |
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diff
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|
864 p->group->listening_processes++; |
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login: Wait until we're connected to auth process before executing command
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changeset
|
865 |
af685269ead0
login: Wait until we're connected to auth process before executing command
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parents:
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|
866 if (login_process_send_env(p) < 0) { |
af685269ead0
login: Wait until we're connected to auth process before executing command
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|
867 i_error("login: Couldn't send environment"); |
af685269ead0
login: Wait until we're connected to auth process before executing command
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|
868 return FALSE; |
af685269ead0
login: Wait until we're connected to auth process before executing command
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diff
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|
869 } |
af685269ead0
login: Wait until we're connected to auth process before executing command
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diff
changeset
|
870 |
af685269ead0
login: Wait until we're connected to auth process before executing command
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diff
changeset
|
871 return TRUE; |
af685269ead0
login: Wait until we're connected to auth process before executing command
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diff
changeset
|
872 } |
af685269ead0
login: Wait until we're connected to auth process before executing command
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diff
changeset
|
873 |
1273
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changeset
|
874 static void inetd_login_accept(void *context __attr_unused__) |
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|
875 { |
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|
876 struct login_process *p; |
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|
877 int fd; |
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|
878 |
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|
879 fd = net_accept(inetd_login_fd, NULL, NULL); |
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|
880 if (fd < 0) { |
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Somewhat working code to support loading Dovecot from inetd and such. It
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diff
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|
881 if (fd < -1) |
5358
a977ad033903
net_listen_unix() API changed a bit. -1 is now returned for errors that can
Timo Sirainen <tss@iki.fi>
parents:
5136
diff
changeset
|
882 i_error("accept(inetd_login_fd) failed: %m"); |
1273
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|
883 } else { |
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Somewhat working code to support loading Dovecot from inetd and such. It
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changeset
|
884 net_set_nonblock(fd, TRUE); |
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diff
changeset
|
885 fd_close_on_exec(fd, TRUE); |
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|
886 |
1275
af685269ead0
login: Wait until we're connected to auth process before executing command
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parents:
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diff
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|
887 p = login_process_new(NULL, ++login_pid_counter, fd); |
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login: Wait until we're connected to auth process before executing command
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parents:
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diff
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|
888 p->initialized = TRUE; |
4538
9d9e72374164
Fixes to login process handling, especially with
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parents:
4388
diff
changeset
|
889 p->inetd_child = TRUE; |
1273
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parents:
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|
890 } |
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|
891 } |
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Somewhat working code to support loading Dovecot from inetd and such. It
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changeset
|
892 |
0 | 893 void login_processes_init(void) |
894 { | |
1273
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|
895 auth_id_counter = 0; |
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changeset
|
896 login_pid_counter = 0; |
1055
a72bba3f8a55
Rewrote setting handling. Changed some existing settings also since POP3
Timo Sirainen <tss@iki.fi>
parents:
1039
diff
changeset
|
897 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
|
898 |
5843
f655c4d4a419
Moved child process handling to child-process.[ch]. The hash table now uses
Timo Sirainen <tss@iki.fi>
parents:
5632
diff
changeset
|
899 child_process_set_destroy_callback(PROCESS_TYPE_LOGIN, |
f655c4d4a419
Moved child process handling to child-process.[ch]. The hash table now uses
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diff
changeset
|
900 login_process_destroyed); |
f655c4d4a419
Moved child process handling to child-process.[ch]. The hash table now uses
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parents:
5632
diff
changeset
|
901 |
1273
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
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diff
changeset
|
902 if (!IS_INETD()) { |
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Somewhat working code to support loading Dovecot from inetd and such. It
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parents:
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diff
changeset
|
903 to = timeout_add(1000, login_processes_start_missing, NULL); |
2cf2e08a6ee9
Somewhat working code to support loading Dovecot from inetd and such. It
Timo Sirainen <tss@iki.fi>
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changeset
|
904 io_listen = NULL; |
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Somewhat working code to support loading Dovecot from inetd and such. It
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|
905 } else { |
2cf2e08a6ee9
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diff
changeset
|
906 to = NULL; |
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parents:
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diff
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|
907 io_listen = io_add(inetd_login_fd, IO_READ, |
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Somewhat working code to support loading Dovecot from inetd and such. It
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|
908 inetd_login_accept, NULL); |
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diff
changeset
|
909 } |
0 | 910 } |
911 | |
912 void login_processes_deinit(void) | |
913 { | |
1273
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diff
changeset
|
914 if (to != NULL) |
3879
928229f8b3e6
deinit, unref, destroy, close, free, etc. functions now take a pointer to
Timo Sirainen <tss@iki.fi>
parents:
3863
diff
changeset
|
915 timeout_remove(&to); |
1273
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parents:
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changeset
|
916 if (io_listen != NULL) |
3879
928229f8b3e6
deinit, unref, destroy, close, free, etc. functions now take a pointer to
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parents:
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diff
changeset
|
917 io_remove(&io_listen); |
0 | 918 } |