Mercurial > dovecot > original-hg > dovecot-1.2
annotate src/master/main.c @ 615:0d852af6842e HEAD
Master process generates DH/RSA parameters now and stores them into file
which login processes read. Added setting for regeneration interval. Some
other SSL cleanups.
Also fixed default login process path to be ../run/dovecot/login/ like
example config file said, instead of just ../run/dovecot/ which it actually
was until now.
| author | Timo Sirainen <tss@iki.fi> |
|---|---|
| date | Sun, 17 Nov 2002 11:42:07 +0200 |
| parents | bc766660efc4 |
| children | 90a65c017bf0 |
| rev | line source |
|---|---|
| 0 | 1 /* Copyright (C) 2002 Timo Sirainen */ |
| 2 | |
| 3 #include "common.h" | |
| 4 #include "ioloop.h" | |
| 5 #include "lib-signals.h" | |
| 6 #include "network.h" | |
| 7 | |
| 8 #include "auth-process.h" | |
| 9 #include "login-process.h" | |
|
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10 #include "ssl-init.h" |
| 0 | 11 |
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12 #include <stdio.h> |
| 0 | 13 #include <stdlib.h> |
| 14 #include <unistd.h> | |
| 15 #include <fcntl.h> | |
| 16 #include <syslog.h> | |
| 17 #include <sys/stat.h> | |
| 18 #include <sys/wait.h> | |
| 19 | |
| 20 const char *process_names[PROCESS_TYPE_MAX] = { | |
| 21 "unknown", | |
| 22 "auth", | |
| 23 "login", | |
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24 "imap", |
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25 "ssl-param" |
| 0 | 26 }; |
| 27 | |
| 28 static IOLoop ioloop; | |
| 29 static Timeout to_children; | |
| 30 | |
| 31 HashTable *pids; | |
| 32 int null_fd, imap_fd, imaps_fd; | |
| 33 | |
| 34 int validate_str(const char *str, int max_len) | |
| 35 { | |
| 36 int i; | |
| 37 | |
| 38 for (i = 0; i < max_len; i++) { | |
| 39 if (str[i] == '\0') | |
| 40 return TRUE; | |
| 41 } | |
| 42 | |
| 43 return FALSE; | |
| 44 } | |
| 45 | |
| 46 void clean_child_process(void) | |
| 47 { | |
| 48 extern char **environ; | |
| 49 | |
| 50 /* remove all environment, we don't need them */ | |
| 51 if (environ != NULL) | |
| 52 *environ = NULL; | |
| 53 | |
| 54 /* set the failure log */ | |
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55 if (set_log_path != NULL) { |
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56 putenv((char *) t_strconcat("IMAP_LOGFILE=", |
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57 set_log_path, NULL)); |
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58 } |
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59 if (set_log_timestamp != NULL) { |
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60 putenv((char *) t_strconcat("IMAP_LOGSTAMP=", |
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61 set_log_timestamp, NULL)); |
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62 } |
| 0 | 63 |
| 64 (void)close(null_fd); | |
| 65 (void)close(imap_fd); | |
| 66 (void)close(imaps_fd); | |
| 67 | |
| 68 /* close fds for auth/login processes */ | |
| 69 login_processes_cleanup(); | |
| 70 auth_processes_cleanup(); | |
| 71 | |
| 72 closelog(); | |
| 73 } | |
| 74 | |
| 75 static void sig_quit(int signo __attr_unused__) | |
| 76 { | |
| 77 io_loop_stop(ioloop); | |
| 78 } | |
| 79 | |
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80 static void children_check_timeout(void *context __attr_unused__, |
| 0 | 81 Timeout timeout __attr_unused__) |
| 82 { | |
| 83 const char *process_type_name; | |
| 84 pid_t pid; | |
| 85 int status, process_type; | |
| 86 | |
| 87 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { | |
| 88 /* get the type and remove from hash */ | |
| 89 process_type = PID_GET_PROCESS_TYPE(pid); | |
| 90 PID_REMOVE_PROCESS_TYPE(pid); | |
| 91 | |
| 92 if (process_type == PROCESS_TYPE_IMAP) | |
| 93 imap_process_destroyed(pid); | |
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94 if (process_type == PROCESS_TYPE_SSL_PARAM) |
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95 ssl_parameter_process_destroyed(pid); |
| 0 | 96 |
| 97 /* write errors to syslog */ | |
| 98 process_type_name = process_names[process_type]; | |
| 99 if (WIFEXITED(status)) { | |
| 100 status = WEXITSTATUS(status); | |
| 101 if (status != 0) { | |
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102 login_process_abormal_exit(pid); |
| 0 | 103 i_error("child %d (%s) returned error %d", |
| 104 (int)pid, process_type_name, status); | |
| 105 } | |
| 106 } else if (WIFSIGNALED(status)) { | |
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107 login_process_abormal_exit(pid); |
| 0 | 108 i_error("child %d (%s) killed with signal %d", |
| 109 (int)pid, process_type_name, WTERMSIG(status)); | |
| 110 } | |
| 111 } | |
| 112 | |
| 113 if (pid == -1 && errno != EINTR && errno != ECHILD) | |
| 114 i_warning("waitpid() failed: %m"); | |
| 115 } | |
| 116 | |
| 117 static IPADDR *resolve_ip(const char *name) | |
| 118 { | |
| 119 IPADDR *ip; | |
| 120 int ret, ips_count; | |
| 121 | |
| 36 | 122 if (name == NULL || *name == '\0') |
| 0 | 123 return NULL; |
| 124 | |
| 125 ret = net_gethostbyname(name, &ip, &ips_count); | |
| 126 if (ret != 0) | |
| 36 | 127 i_fatal("Can't resolve address: %s", name); |
| 0 | 128 |
| 129 if (ips_count < 1) | |
| 36 | 130 i_fatal("No IPs for address: %s", name); |
| 0 | 131 |
| 132 return ip; | |
| 133 } | |
| 134 | |
| 135 static void open_fds(void) | |
| 136 { | |
| 137 IPADDR *imap_ip, *imaps_ip; | |
| 138 | |
| 139 imap_ip = resolve_ip(set_imap_listen); | |
| 140 imaps_ip = resolve_ip(set_imaps_listen); | |
| 141 | |
| 142 if (imaps_ip == NULL && set_imaps_listen == NULL) | |
| 143 imaps_ip = imap_ip; | |
| 144 | |
| 145 null_fd = open("/dev/null", O_RDONLY); | |
| 146 if (null_fd == -1) | |
| 147 i_fatal("Can't open /dev/null: %m"); | |
| 148 | |
| 149 imap_fd = set_imap_port == 0 ? dup(null_fd) : | |
| 150 net_listen(imap_ip, &set_imap_port); | |
| 151 if (imap_fd == -1) { | |
| 468 | 152 i_fatal("listen(%d) failed: %m", set_imap_port); |
| 0 | 153 } |
| 154 | |
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155 #ifdef HAVE_SSL |
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156 imaps_fd = set_ssl_cert_file == NULL || *set_ssl_cert_file == '\0' || |
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157 set_ssl_key_file == NULL || *set_ssl_key_file == '\0' || |
| 0 | 158 set_imaps_port == 0 ? dup(null_fd) : |
| 159 net_listen(imaps_ip, &set_imaps_port); | |
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160 #else |
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161 imaps_fd = dup(null_fd); |
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162 #endif |
| 0 | 163 if (imaps_fd == -1) { |
| 164 i_fatal("listen(%d) failed: %m", set_imaps_port); | |
| 165 } | |
| 166 } | |
| 167 | |
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168 static void main_init(void) |
| 0 | 169 { |
| 170 lib_init_signals(sig_quit); | |
| 171 | |
| 172 /* deny file access from everyone else except owner */ | |
| 173 (void)umask(0077); | |
| 174 | |
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175 if (set_log_path == NULL) { |
| 0 | 176 openlog("imap-master", LOG_NDELAY, LOG_MAIL); |
| 177 | |
| 178 i_set_panic_handler(i_syslog_panic_handler); | |
| 179 i_set_fatal_handler(i_syslog_fatal_handler); | |
| 180 i_set_error_handler(i_syslog_error_handler); | |
| 181 i_set_warning_handler(i_syslog_warning_handler); | |
| 182 } else { | |
| 183 /* log failures into specified log file */ | |
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184 i_set_failure_file(set_log_path, "imap-master"); |
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185 i_set_failure_timestamp_format(set_log_timestamp); |
| 0 | 186 } |
| 187 | |
| 188 pids = hash_create(default_pool, 128, NULL, NULL); | |
| 189 to_children = timeout_add(100, children_check_timeout, NULL); | |
| 190 | |
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parents:
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191 ssl_init(); |
| 0 | 192 auth_processes_init(); |
| 193 login_processes_init(); | |
| 194 } | |
| 195 | |
| 196 static void main_deinit(void) | |
| 197 { | |
| 198 if (lib_signal_kill != 0) | |
| 199 i_warning("Killed with signal %d", lib_signal_kill); | |
| 200 | |
| 201 login_processes_deinit(); | |
| 202 auth_processes_deinit(); | |
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203 ssl_deinit(); |
| 0 | 204 |
| 205 timeout_remove(to_children); | |
| 206 | |
| 207 (void)close(null_fd); | |
| 208 (void)close(imap_fd); | |
| 209 (void)close(imaps_fd); | |
| 210 | |
| 211 hash_destroy(pids); | |
| 212 closelog(); | |
| 213 } | |
| 214 | |
| 215 static void daemonize(void) | |
| 216 { | |
| 217 pid_t pid; | |
| 218 | |
| 219 pid = fork(); | |
| 220 if (pid < 0) | |
| 221 i_fatal("fork() failed: %m"); | |
| 222 | |
| 223 if (pid != 0) | |
| 224 _exit(0); | |
| 610 | 225 |
| 226 setsid(); | |
| 0 | 227 } |
| 228 | |
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229 static void print_help(void) |
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230 { |
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231 printf("Usage: imap-master [-F] [-c <config file>]\n"); |
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232 } |
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233 |
| 0 | 234 int main(int argc, char *argv[]) |
| 235 { | |
| 236 /* parse arguments */ | |
| 237 const char *configfile = SYSCONFDIR "/" PACKAGE ".conf"; | |
| 238 int foreground = FALSE; | |
| 239 int i; | |
| 240 | |
| 241 lib_init(); | |
| 242 | |
| 243 for (i = 1; i < argc; i++) { | |
| 244 if (strcmp(argv[i], "-F") == 0) { | |
| 245 /* foreground */ | |
| 246 foreground = TRUE; | |
| 247 } else if (strcmp(argv[i], "-c") == 0) { | |
| 248 /* config file */ | |
| 249 i++; | |
| 250 if (i == argc) i_fatal("Missing config file argument"); | |
| 251 configfile = argv[i]; | |
| 252 } else { | |
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253 print_help(); |
| 0 | 254 i_fatal("Unknown argument: %s", argv[1]); |
| 255 } | |
| 256 } | |
| 257 | |
| 258 /* read and verify settings before forking */ | |
| 259 settings_read(configfile); | |
| 260 open_fds(); | |
| 261 | |
| 262 if (!foreground) | |
| 263 daemonize(); | |
| 264 | |
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265 ioloop = io_loop_create(system_pool); |
| 0 | 266 |
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diff
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267 main_init(); |
| 0 | 268 io_loop_run(ioloop); |
| 269 main_deinit(); | |
| 270 | |
| 271 io_loop_destroy(ioloop); | |
| 272 lib_deinit(); | |
| 273 | |
| 274 return 0; | |
| 275 } |