Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1 | /* |
| 2 | * HA-Proxy : High Availability-enabled HTTP/TCP proxy |
Willy Tarreau | 7c669d7 | 2008-06-20 15:04:11 +0200 | [diff] [blame] | 3 | * Copyright 2000-2008 Willy Tarreau <w@1wt.eu>. |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 4 | * |
| 5 | * This program is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU General Public License |
| 7 | * as published by the Free Software Foundation; either version |
| 8 | * 2 of the License, or (at your option) any later version. |
| 9 | * |
| 10 | * Please refer to RFC2068 or RFC2616 for informations about HTTP protocol, and |
| 11 | * RFC2965 for informations about cookies usage. More generally, the IETF HTTP |
| 12 | * Working Group's web site should be consulted for protocol related changes : |
| 13 | * |
| 14 | * http://ftp.ics.uci.edu/pub/ietf/http/ |
| 15 | * |
| 16 | * Pending bugs (may be not fixed because never reproduced) : |
| 17 | * - solaris only : sometimes, an HTTP proxy with only a dispatch address causes |
| 18 | * the proxy to terminate (no core) if the client breaks the connection during |
| 19 | * the response. Seen on 1.1.8pre4, but never reproduced. May not be related to |
| 20 | * the snprintf() bug since requests were simple (GET / HTTP/1.0), but may be |
| 21 | * related to missing setsid() (fixed in 1.1.15) |
| 22 | * - a proxy with an invalid config will prevent the startup even if disabled. |
| 23 | * |
| 24 | * ChangeLog has moved to the CHANGELOG file. |
| 25 | * |
| 26 | * TODO: |
| 27 | * - handle properly intermediate incomplete server headers. Done ? |
| 28 | * - handle hot-reconfiguration |
| 29 | * - fix client/server state transition when server is in connect or headers state |
| 30 | * and client suddenly disconnects. The server *should* switch to SHUT_WR, but |
| 31 | * still handle HTTP headers. |
| 32 | * - remove MAX_NEWHDR |
| 33 | * - cut this huge file into several ones |
| 34 | * |
| 35 | */ |
| 36 | |
| 37 | #include <stdio.h> |
| 38 | #include <stdlib.h> |
| 39 | #include <unistd.h> |
| 40 | #include <string.h> |
| 41 | #include <ctype.h> |
| 42 | #include <sys/time.h> |
| 43 | #include <sys/types.h> |
| 44 | #include <sys/socket.h> |
| 45 | #include <netinet/tcp.h> |
| 46 | #include <netinet/in.h> |
| 47 | #include <arpa/inet.h> |
| 48 | #include <netdb.h> |
| 49 | #include <fcntl.h> |
| 50 | #include <errno.h> |
| 51 | #include <signal.h> |
| 52 | #include <stdarg.h> |
| 53 | #include <sys/resource.h> |
| 54 | #include <time.h> |
| 55 | #include <syslog.h> |
| 56 | |
| 57 | #ifdef DEBUG_FULL |
| 58 | #include <assert.h> |
| 59 | #endif |
| 60 | |
Willy Tarreau | 2dd0d47 | 2006-06-29 17:53:05 +0200 | [diff] [blame] | 61 | #include <common/appsession.h> |
| 62 | #include <common/base64.h> |
| 63 | #include <common/cfgparse.h> |
| 64 | #include <common/compat.h> |
| 65 | #include <common/config.h> |
| 66 | #include <common/defaults.h> |
Willy Tarreau | d740bab | 2007-10-28 11:14:07 +0100 | [diff] [blame] | 67 | #include <common/errors.h> |
Willy Tarreau | 2dd0d47 | 2006-06-29 17:53:05 +0200 | [diff] [blame] | 68 | #include <common/memory.h> |
| 69 | #include <common/mini-clist.h> |
| 70 | #include <common/regex.h> |
| 71 | #include <common/standard.h> |
| 72 | #include <common/time.h> |
| 73 | #include <common/uri_auth.h> |
| 74 | #include <common/version.h> |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 75 | |
| 76 | #include <types/capture.h> |
| 77 | #include <types/global.h> |
Willy Tarreau | 69801b8 | 2007-04-09 15:28:51 +0200 | [diff] [blame] | 78 | #include <types/polling.h> |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 79 | |
Willy Tarreau | 0fc45a7 | 2007-06-17 00:36:03 +0200 | [diff] [blame] | 80 | #include <proto/acl.h> |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 81 | #include <proto/backend.h> |
| 82 | #include <proto/buffers.h> |
Krzysztof Oledzki | b304dc7 | 2007-10-14 23:40:01 +0200 | [diff] [blame] | 83 | #include <proto/checks.h> |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 84 | #include <proto/client.h> |
| 85 | #include <proto/fd.h> |
| 86 | #include <proto/log.h> |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 87 | #include <proto/protocols.h> |
Willy Tarreau | 8058743 | 2006-12-24 17:47:20 +0100 | [diff] [blame] | 88 | #include <proto/proto_http.h> |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 89 | #include <proto/proxy.h> |
| 90 | #include <proto/queue.h> |
| 91 | #include <proto/server.h> |
Willy Tarreau | c6ca1a0 | 2007-05-13 19:43:47 +0200 | [diff] [blame] | 92 | #include <proto/session.h> |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 93 | #include <proto/stream_sock.h> |
| 94 | #include <proto/task.h> |
| 95 | |
Willy Tarreau | 6d1a988 | 2007-01-07 02:03:04 +0100 | [diff] [blame] | 96 | #ifdef CONFIG_HAP_TCPSPLICE |
| 97 | #include <libtcpsplice.h> |
| 98 | #endif |
| 99 | |
Willy Tarreau | b38651a | 2007-03-24 17:24:39 +0100 | [diff] [blame] | 100 | #ifdef CONFIG_HAP_CTTPROXY |
| 101 | #include <proto/cttproxy.h> |
| 102 | #endif |
| 103 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 104 | /*********************************************************************/ |
| 105 | |
| 106 | /*********************************************************************/ |
| 107 | |
| 108 | char *cfg_cfgfile = NULL; /* configuration file */ |
| 109 | char *progname = NULL; /* program name */ |
| 110 | int pid; /* current process id */ |
Willy Tarreau | 2815664 | 2007-11-26 16:13:36 +0100 | [diff] [blame] | 111 | int relative_pid = 1; /* process id starting at 1 */ |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 112 | |
| 113 | /* global options */ |
| 114 | struct global global = { |
| 115 | logfac1 : -1, |
| 116 | logfac2 : -1, |
| 117 | loglev1 : 7, /* max syslog level : debug */ |
| 118 | loglev2 : 7, |
Willy Tarreau | 0c303ee | 2008-07-07 00:09:58 +0200 | [diff] [blame] | 119 | .stats_timeout = MS_TO_TICKS(10000), /* stats timeout = 10 seconds */ |
Willy Tarreau | 03f6d67 | 2007-10-18 15:15:57 +0200 | [diff] [blame] | 120 | .stats_sock = { |
| 121 | .timeout = &global.stats_timeout, |
| 122 | .maxconn = 10, /* 10 concurrent stats connections */ |
| 123 | .perm = { |
| 124 | .ux = { |
| 125 | .uid = -1, |
| 126 | .gid = -1, |
| 127 | .mode = 0, |
| 128 | } |
| 129 | } |
| 130 | } |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 131 | /* others NULL OK */ |
| 132 | }; |
| 133 | |
| 134 | /*********************************************************************/ |
| 135 | |
| 136 | int stopping; /* non zero means stopping in progress */ |
| 137 | |
| 138 | /* Here we store informations about the pids of the processes we may pause |
| 139 | * or kill. We will send them a signal every 10 ms until we can bind to all |
| 140 | * our ports. With 200 retries, that's about 2 seconds. |
| 141 | */ |
| 142 | #define MAX_START_RETRIES 200 |
| 143 | static int nb_oldpids = 0; |
| 144 | static int *oldpids = NULL; |
| 145 | static int oldpids_sig; /* use USR1 or TERM */ |
| 146 | |
| 147 | /* this is used to drain data, and as a temporary buffer for sprintf()... */ |
| 148 | char trash[BUFSIZE]; |
| 149 | |
| 150 | const int zero = 0; |
| 151 | const int one = 1; |
Alexandre Cassen | 87ea548 | 2007-10-11 20:48:58 +0200 | [diff] [blame] | 152 | const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 }; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 153 | |
| 154 | /* |
| 155 | * Syslog facilities and levels. Conforming to RFC3164. |
| 156 | */ |
| 157 | |
| 158 | #define MAX_HOSTNAME_LEN 32 |
| 159 | static char hostname[MAX_HOSTNAME_LEN] = ""; |
| 160 | |
| 161 | |
| 162 | /*********************************************************************/ |
| 163 | /* general purpose functions ***************************************/ |
| 164 | /*********************************************************************/ |
| 165 | |
| 166 | void display_version() |
| 167 | { |
| 168 | printf("HA-Proxy version " HAPROXY_VERSION " " HAPROXY_DATE"\n"); |
Willy Tarreau | 7b4c5ae | 2008-04-19 21:06:14 +0200 | [diff] [blame] | 169 | printf("Copyright 2000-2008 Willy Tarreau <w@1wt.eu>\n\n"); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 170 | } |
| 171 | |
Willy Tarreau | 7b066db | 2007-12-02 11:28:59 +0100 | [diff] [blame] | 172 | void display_build_opts() |
| 173 | { |
| 174 | printf("Build options :" |
| 175 | #ifdef BUILD_TARGET |
Willy Tarreau | 9f2b730 | 2008-01-02 20:48:34 +0100 | [diff] [blame] | 176 | "\n TARGET = " BUILD_TARGET |
Willy Tarreau | 7b066db | 2007-12-02 11:28:59 +0100 | [diff] [blame] | 177 | #endif |
| 178 | #ifdef BUILD_CPU |
Willy Tarreau | 9f2b730 | 2008-01-02 20:48:34 +0100 | [diff] [blame] | 179 | "\n CPU = " BUILD_CPU |
Willy Tarreau | 7b066db | 2007-12-02 11:28:59 +0100 | [diff] [blame] | 180 | #endif |
| 181 | #ifdef BUILD_CC |
Willy Tarreau | 9f2b730 | 2008-01-02 20:48:34 +0100 | [diff] [blame] | 182 | "\n CC = " BUILD_CC |
| 183 | #endif |
| 184 | #ifdef BUILD_CFLAGS |
| 185 | "\n CFLAGS = " BUILD_CFLAGS |
Willy Tarreau | 7b066db | 2007-12-02 11:28:59 +0100 | [diff] [blame] | 186 | #endif |
Willy Tarreau | 9f2b730 | 2008-01-02 20:48:34 +0100 | [diff] [blame] | 187 | #ifdef BUILD_OPTIONS |
| 188 | "\n OPTIONS = " BUILD_OPTIONS |
Willy Tarreau | 7b066db | 2007-12-02 11:28:59 +0100 | [diff] [blame] | 189 | #endif |
| 190 | "\n\n"); |
| 191 | } |
| 192 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 193 | /* |
| 194 | * This function prints the command line usage and exits |
| 195 | */ |
| 196 | void usage(char *name) |
| 197 | { |
| 198 | display_version(); |
| 199 | fprintf(stderr, |
| 200 | "Usage : %s -f <cfgfile> [ -vdV" |
| 201 | "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n" |
| 202 | " [ -p <pidfile> ] [ -m <max megs> ]\n" |
Willy Tarreau | 7b066db | 2007-12-02 11:28:59 +0100 | [diff] [blame] | 203 | " -v displays version ; -vv shows known build options.\n" |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 204 | " -d enters debug mode ; -db only disables background mode.\n" |
| 205 | " -V enters verbose mode (disables quiet mode)\n" |
| 206 | " -D goes daemon ; implies -q\n" |
| 207 | " -q quiet mode : don't display messages\n" |
| 208 | " -c check mode : only check config file and exit\n" |
| 209 | " -n sets the maximum total # of connections (%d)\n" |
| 210 | " -m limits the usable amount of memory (in MB)\n" |
| 211 | " -N sets the default, per-proxy maximum # of connections (%d)\n" |
| 212 | " -p writes pids of all children to this file\n" |
| 213 | #if defined(ENABLE_EPOLL) |
| 214 | " -de disables epoll() usage even when available\n" |
| 215 | #endif |
Willy Tarreau | de99e99 | 2007-04-16 00:53:59 +0200 | [diff] [blame] | 216 | #if defined(ENABLE_SEPOLL) |
| 217 | " -ds disables speculative epoll() usage even when available\n" |
| 218 | #endif |
Willy Tarreau | 1e63130a | 2007-04-09 12:03:06 +0200 | [diff] [blame] | 219 | #if defined(ENABLE_KQUEUE) |
| 220 | " -dk disables kqueue() usage even when available\n" |
| 221 | #endif |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 222 | #if defined(ENABLE_POLL) |
| 223 | " -dp disables poll() usage even when available\n" |
| 224 | #endif |
| 225 | " -sf/-st [pid ]* finishes/terminates old pids. Must be last arguments.\n" |
| 226 | "\n", |
| 227 | name, DEFAULT_MAXCONN, cfg_maxpconn); |
| 228 | exit(1); |
| 229 | } |
| 230 | |
| 231 | |
| 232 | |
| 233 | /*********************************************************************/ |
| 234 | /* more specific functions ***************************************/ |
| 235 | /*********************************************************************/ |
| 236 | |
| 237 | /* |
| 238 | * upon SIGUSR1, let's have a soft stop. |
| 239 | */ |
| 240 | void sig_soft_stop(int sig) |
| 241 | { |
| 242 | soft_stop(); |
Willy Tarreau | 4d2d098 | 2007-05-14 00:39:29 +0200 | [diff] [blame] | 243 | pool_gc2(); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 244 | signal(sig, SIG_IGN); |
| 245 | } |
| 246 | |
| 247 | /* |
| 248 | * upon SIGTTOU, we pause everything |
| 249 | */ |
| 250 | void sig_pause(int sig) |
| 251 | { |
| 252 | pause_proxies(); |
Willy Tarreau | 4d2d098 | 2007-05-14 00:39:29 +0200 | [diff] [blame] | 253 | pool_gc2(); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 254 | signal(sig, sig_pause); |
| 255 | } |
| 256 | |
| 257 | /* |
| 258 | * upon SIGTTIN, let's have a soft stop. |
| 259 | */ |
| 260 | void sig_listen(int sig) |
| 261 | { |
| 262 | listen_proxies(); |
| 263 | signal(sig, sig_listen); |
| 264 | } |
| 265 | |
| 266 | /* |
| 267 | * this function dumps every server's state when the process receives SIGHUP. |
| 268 | */ |
| 269 | void sig_dump_state(int sig) |
| 270 | { |
| 271 | struct proxy *p = proxy; |
| 272 | |
| 273 | Warning("SIGHUP received, dumping servers states.\n"); |
| 274 | while (p) { |
| 275 | struct server *s = p->srv; |
| 276 | |
| 277 | send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id); |
| 278 | while (s) { |
| 279 | snprintf(trash, sizeof(trash), |
| 280 | "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %d tot.", |
| 281 | p->id, s->id, |
| 282 | (s->state & SRV_RUNNING) ? "UP" : "DOWN", |
| 283 | s->cur_sess, s->nbpend, s->cum_sess); |
| 284 | Warning("%s\n", trash); |
| 285 | send_log(p, LOG_NOTICE, "%s\n", trash); |
| 286 | s = s->next; |
| 287 | } |
| 288 | |
Willy Tarreau | 5fcc8f1 | 2007-09-17 11:27:09 +0200 | [diff] [blame] | 289 | /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */ |
| 290 | if (!p->srv) { |
| 291 | snprintf(trash, sizeof(trash), |
| 292 | "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %d+%d.", |
| 293 | p->id, |
| 294 | p->feconn, p->beconn, p->totpend, p->nbpend, p->cum_feconn, p->cum_beconn); |
| 295 | } else if (p->srv_act == 0) { |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 296 | snprintf(trash, sizeof(trash), |
Willy Tarreau | f1221aa | 2006-12-17 22:14:12 +0100 | [diff] [blame] | 297 | "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %d+%d.", |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 298 | p->id, |
| 299 | (p->srv_bck) ? "is running on backup servers" : "has no server available", |
Willy Tarreau | f1221aa | 2006-12-17 22:14:12 +0100 | [diff] [blame] | 300 | p->feconn, p->beconn, p->totpend, p->nbpend, p->cum_feconn, p->cum_beconn); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 301 | } else { |
| 302 | snprintf(trash, sizeof(trash), |
| 303 | "SIGHUP: Proxy %s has %d active servers and %d backup servers available." |
Willy Tarreau | f1221aa | 2006-12-17 22:14:12 +0100 | [diff] [blame] | 304 | " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %d+%d.", |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 305 | p->id, p->srv_act, p->srv_bck, |
Willy Tarreau | f1221aa | 2006-12-17 22:14:12 +0100 | [diff] [blame] | 306 | p->feconn, p->beconn, p->totpend, p->nbpend, p->cum_feconn, p->cum_beconn); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 307 | } |
| 308 | Warning("%s\n", trash); |
| 309 | send_log(p, LOG_NOTICE, "%s\n", trash); |
| 310 | |
| 311 | p = p->next; |
| 312 | } |
| 313 | signal(sig, sig_dump_state); |
| 314 | } |
| 315 | |
| 316 | void dump(int sig) |
| 317 | { |
Willy Tarreau | 96bcfd7 | 2007-04-29 10:41:56 +0200 | [diff] [blame] | 318 | #if 0 |
Willy Tarreau | 964c936 | 2007-01-07 00:38:00 +0100 | [diff] [blame] | 319 | struct task *t; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 320 | struct session *s; |
Willy Tarreau | 964c936 | 2007-01-07 00:38:00 +0100 | [diff] [blame] | 321 | struct rb_node *node; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 322 | |
Willy Tarreau | 964c936 | 2007-01-07 00:38:00 +0100 | [diff] [blame] | 323 | for(node = rb_first(&wait_queue[0]); |
| 324 | node != NULL; node = rb_next(node)) { |
| 325 | t = rb_entry(node, struct task, rb_node); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 326 | s = t->context; |
| 327 | qfprintf(stderr,"[dump] wq: task %p, still %ld ms, " |
Willy Tarreau | 7e5067d | 2008-12-07 16:27:56 +0100 | [diff] [blame] | 328 | "cli=%d, srv=%d, req=%d, rep=%d\n", |
Willy Tarreau | 42aae5c | 2007-04-29 17:43:56 +0200 | [diff] [blame] | 329 | s, tv_ms_remain(&now, &t->expire), |
Willy Tarreau | 7e5067d | 2008-12-07 16:27:56 +0100 | [diff] [blame] | 330 | s->si[0].state, |
| 331 | s->si[1].state, |
| 332 | s->req->l, s->rep?s->rep->l:0); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 333 | } |
Willy Tarreau | 96bcfd7 | 2007-04-29 10:41:56 +0200 | [diff] [blame] | 334 | #endif |
Willy Tarreau | c6ca1a0 | 2007-05-13 19:43:47 +0200 | [diff] [blame] | 335 | /* dump memory usage then free everything possible */ |
| 336 | dump_pools(); |
| 337 | pool_gc2(); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 338 | } |
| 339 | |
| 340 | #ifdef DEBUG_MEMORY |
| 341 | static void fast_stop(void) |
| 342 | { |
| 343 | struct proxy *p; |
| 344 | p = proxy; |
| 345 | while (p) { |
| 346 | p->grace = 0; |
| 347 | p = p->next; |
| 348 | } |
| 349 | soft_stop(); |
| 350 | } |
| 351 | |
| 352 | void sig_int(int sig) |
| 353 | { |
| 354 | /* This would normally be a hard stop, |
| 355 | but we want to be sure about deallocation, |
| 356 | and so on, so we do a soft stop with |
| 357 | 0 GRACE time |
| 358 | */ |
| 359 | fast_stop(); |
Willy Tarreau | 4d2d098 | 2007-05-14 00:39:29 +0200 | [diff] [blame] | 360 | pool_gc2(); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 361 | /* If we are killed twice, we decide to die*/ |
| 362 | signal(sig, SIG_DFL); |
| 363 | } |
| 364 | |
| 365 | void sig_term(int sig) |
| 366 | { |
| 367 | /* This would normally be a hard stop, |
| 368 | but we want to be sure about deallocation, |
| 369 | and so on, so we do a soft stop with |
| 370 | 0 GRACE time |
| 371 | */ |
| 372 | fast_stop(); |
Willy Tarreau | 4d2d098 | 2007-05-14 00:39:29 +0200 | [diff] [blame] | 373 | pool_gc2(); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 374 | /* If we are killed twice, we decide to die*/ |
| 375 | signal(sig, SIG_DFL); |
| 376 | } |
| 377 | #endif |
| 378 | |
| 379 | |
| 380 | /* |
| 381 | * This function initializes all the necessary variables. It only returns |
| 382 | * if everything is OK. If something fails, it exits. |
| 383 | */ |
| 384 | void init(int argc, char **argv) |
| 385 | { |
| 386 | int i; |
| 387 | int arg_mode = 0; /* MODE_DEBUG, ... */ |
| 388 | char *old_argv = *argv; |
| 389 | char *tmp; |
| 390 | char *cfg_pidfile = NULL; |
| 391 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 392 | /* |
| 393 | * Initialize the previously static variables. |
| 394 | */ |
| 395 | |
Willy Tarreau | 3eba98a | 2009-01-25 13:56:13 +0100 | [diff] [blame] | 396 | totalconn = actconn = maxfd = listeners = stopping = 0; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 397 | |
| 398 | |
| 399 | #ifdef HAPROXY_MEMMAX |
| 400 | global.rlimit_memmax = HAPROXY_MEMMAX; |
| 401 | #endif |
| 402 | |
Willy Tarreau | b0b37bc | 2008-06-23 14:00:57 +0200 | [diff] [blame] | 403 | tv_update_date(-1,-1); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 404 | start_date = now; |
| 405 | |
Willy Tarreau | c6ca1a0 | 2007-05-13 19:43:47 +0200 | [diff] [blame] | 406 | init_task(); |
| 407 | init_session(); |
Willy Tarreau | e4d7e55 | 2007-05-13 20:19:55 +0200 | [diff] [blame] | 408 | init_buffer(); |
| 409 | init_pendconn(); |
Willy Tarreau | 8058743 | 2006-12-24 17:47:20 +0100 | [diff] [blame] | 410 | init_proto_http(); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 411 | |
| 412 | cfg_polling_mechanism = POLL_USE_SELECT; /* select() is always available */ |
| 413 | #if defined(ENABLE_POLL) |
| 414 | cfg_polling_mechanism |= POLL_USE_POLL; |
| 415 | #endif |
| 416 | #if defined(ENABLE_EPOLL) |
| 417 | cfg_polling_mechanism |= POLL_USE_EPOLL; |
| 418 | #endif |
Willy Tarreau | de99e99 | 2007-04-16 00:53:59 +0200 | [diff] [blame] | 419 | #if defined(ENABLE_SEPOLL) |
| 420 | cfg_polling_mechanism |= POLL_USE_SEPOLL; |
| 421 | #endif |
Willy Tarreau | 1e63130a | 2007-04-09 12:03:06 +0200 | [diff] [blame] | 422 | #if defined(ENABLE_KQUEUE) |
| 423 | cfg_polling_mechanism |= POLL_USE_KQUEUE; |
| 424 | #endif |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 425 | |
| 426 | pid = getpid(); |
| 427 | progname = *argv; |
| 428 | while ((tmp = strchr(progname, '/')) != NULL) |
| 429 | progname = tmp + 1; |
| 430 | |
| 431 | argc--; argv++; |
| 432 | while (argc > 0) { |
| 433 | char *flag; |
| 434 | |
| 435 | if (**argv == '-') { |
| 436 | flag = *argv+1; |
| 437 | |
| 438 | /* 1 arg */ |
| 439 | if (*flag == 'v') { |
| 440 | display_version(); |
Willy Tarreau | 7b066db | 2007-12-02 11:28:59 +0100 | [diff] [blame] | 441 | if (flag[1] == 'v') /* -vv */ |
| 442 | display_build_opts(); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 443 | exit(0); |
| 444 | } |
| 445 | #if defined(ENABLE_EPOLL) |
| 446 | else if (*flag == 'd' && flag[1] == 'e') |
| 447 | cfg_polling_mechanism &= ~POLL_USE_EPOLL; |
| 448 | #endif |
Willy Tarreau | de99e99 | 2007-04-16 00:53:59 +0200 | [diff] [blame] | 449 | #if defined(ENABLE_SEPOLL) |
| 450 | else if (*flag == 'd' && flag[1] == 's') |
| 451 | cfg_polling_mechanism &= ~POLL_USE_SEPOLL; |
| 452 | #endif |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 453 | #if defined(ENABLE_POLL) |
| 454 | else if (*flag == 'd' && flag[1] == 'p') |
| 455 | cfg_polling_mechanism &= ~POLL_USE_POLL; |
| 456 | #endif |
Willy Tarreau | 69cad1a | 2007-04-10 22:45:11 +0200 | [diff] [blame] | 457 | #if defined(ENABLE_KQUEUE) |
Willy Tarreau | 1e63130a | 2007-04-09 12:03:06 +0200 | [diff] [blame] | 458 | else if (*flag == 'd' && flag[1] == 'k') |
| 459 | cfg_polling_mechanism &= ~POLL_USE_KQUEUE; |
| 460 | #endif |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 461 | else if (*flag == 'V') |
| 462 | arg_mode |= MODE_VERBOSE; |
| 463 | else if (*flag == 'd' && flag[1] == 'b') |
| 464 | arg_mode |= MODE_FOREGROUND; |
| 465 | else if (*flag == 'd') |
| 466 | arg_mode |= MODE_DEBUG; |
| 467 | else if (*flag == 'c') |
| 468 | arg_mode |= MODE_CHECK; |
| 469 | else if (*flag == 'D') |
| 470 | arg_mode |= MODE_DAEMON | MODE_QUIET; |
| 471 | else if (*flag == 'q') |
| 472 | arg_mode |= MODE_QUIET; |
| 473 | else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) { |
| 474 | /* list of pids to finish ('f') or terminate ('t') */ |
| 475 | |
| 476 | if (flag[1] == 'f') |
| 477 | oldpids_sig = SIGUSR1; /* finish then exit */ |
| 478 | else |
| 479 | oldpids_sig = SIGTERM; /* terminate immediately */ |
| 480 | argv++; argc--; |
| 481 | |
| 482 | if (argc > 0) { |
| 483 | oldpids = calloc(argc, sizeof(int)); |
| 484 | while (argc > 0) { |
| 485 | oldpids[nb_oldpids] = atol(*argv); |
| 486 | if (oldpids[nb_oldpids] <= 0) |
| 487 | usage(old_argv); |
| 488 | argc--; argv++; |
| 489 | nb_oldpids++; |
| 490 | } |
| 491 | } |
| 492 | } |
| 493 | else { /* >=2 args */ |
| 494 | argv++; argc--; |
| 495 | if (argc == 0) |
| 496 | usage(old_argv); |
| 497 | |
| 498 | switch (*flag) { |
| 499 | case 'n' : cfg_maxconn = atol(*argv); break; |
| 500 | case 'm' : global.rlimit_memmax = atol(*argv); break; |
| 501 | case 'N' : cfg_maxpconn = atol(*argv); break; |
| 502 | case 'f' : cfg_cfgfile = *argv; break; |
| 503 | case 'p' : cfg_pidfile = *argv; break; |
| 504 | default: usage(old_argv); |
| 505 | } |
| 506 | } |
| 507 | } |
| 508 | else |
| 509 | usage(old_argv); |
| 510 | argv++; argc--; |
| 511 | } |
| 512 | |
| 513 | global.mode = MODE_STARTING | /* during startup, we want most of the alerts */ |
| 514 | (arg_mode & (MODE_DAEMON | MODE_FOREGROUND | MODE_VERBOSE |
| 515 | | MODE_QUIET | MODE_CHECK | MODE_DEBUG)); |
| 516 | |
| 517 | if (!cfg_cfgfile) |
| 518 | usage(old_argv); |
| 519 | |
| 520 | gethostname(hostname, MAX_HOSTNAME_LEN); |
| 521 | |
| 522 | have_appsession = 0; |
| 523 | global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */ |
| 524 | if (readcfgfile(cfg_cfgfile) < 0) { |
| 525 | Alert("Error reading configuration file : %s\n", cfg_cfgfile); |
| 526 | exit(1); |
| 527 | } |
Krzysztof Oledzki | b304dc7 | 2007-10-14 23:40:01 +0200 | [diff] [blame] | 528 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 529 | if (have_appsession) |
| 530 | appsession_init(); |
| 531 | |
| 532 | if (global.mode & MODE_CHECK) { |
| 533 | qfprintf(stdout, "Configuration file is valid : %s\n", cfg_cfgfile); |
| 534 | exit(0); |
| 535 | } |
| 536 | |
Krzysztof Oledzki | b304dc7 | 2007-10-14 23:40:01 +0200 | [diff] [blame] | 537 | if (start_checks() < 0) |
| 538 | exit(1); |
| 539 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 540 | if (cfg_maxconn > 0) |
| 541 | global.maxconn = cfg_maxconn; |
| 542 | |
| 543 | if (cfg_pidfile) { |
Willy Tarreau | a534fea | 2008-08-03 12:19:50 +0200 | [diff] [blame] | 544 | free(global.pidfile); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 545 | global.pidfile = strdup(cfg_pidfile); |
| 546 | } |
| 547 | |
| 548 | if (global.maxconn == 0) |
| 549 | global.maxconn = DEFAULT_MAXCONN; |
| 550 | |
Willy Tarreau | 66aa61f | 2009-01-18 21:44:07 +0100 | [diff] [blame] | 551 | if (!global.maxpipes) { |
| 552 | /* maxpipes not specified. Count how many frontends and backends |
| 553 | * may be using splicing, and bound that to maxconn. |
| 554 | */ |
| 555 | struct proxy *cur; |
| 556 | int nbfe = 0, nbbe = 0; |
| 557 | |
| 558 | for (cur = proxy; cur; cur = cur->next) { |
| 559 | if (cur->options2 & (PR_O2_SPLIC_ANY)) { |
| 560 | if (cur->cap & PR_CAP_FE) |
| 561 | nbfe += cur->maxconn; |
| 562 | if (cur->cap & PR_CAP_BE) |
Willy Tarreau | afb4876 | 2009-01-25 10:42:05 +0100 | [diff] [blame] | 563 | nbbe += cur->fullconn ? cur->fullconn : global.maxconn; |
Willy Tarreau | 66aa61f | 2009-01-18 21:44:07 +0100 | [diff] [blame] | 564 | } |
| 565 | } |
| 566 | global.maxpipes = MAX(nbfe, nbbe); |
| 567 | if (global.maxpipes > global.maxconn) |
| 568 | global.maxpipes = global.maxconn; |
| 569 | } |
| 570 | |
| 571 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 572 | global.maxsock += global.maxconn * 2; /* each connection needs two sockets */ |
Willy Tarreau | 3ec79b9 | 2009-01-18 20:39:42 +0100 | [diff] [blame] | 573 | global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */ |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 574 | |
Willy Tarreau | 1db3771 | 2007-06-03 17:16:49 +0200 | [diff] [blame] | 575 | if (global.tune.maxpollevents <= 0) |
| 576 | global.tune.maxpollevents = MAX_POLL_EVENTS; |
| 577 | |
Willy Tarreau | a0250ba | 2008-01-06 11:22:57 +0100 | [diff] [blame] | 578 | if (global.tune.maxaccept <= 0) { |
| 579 | if (global.nbproc > 1) |
| 580 | global.tune.maxaccept = 8; /* leave some conns to other processes */ |
| 581 | else |
| 582 | global.tune.maxaccept = -1; /* accept all incoming conns */ |
| 583 | } |
| 584 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 585 | if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) { |
| 586 | /* command line debug mode inhibits configuration mode */ |
| 587 | global.mode &= ~(MODE_DAEMON | MODE_QUIET); |
| 588 | } |
| 589 | global.mode |= (arg_mode & (MODE_DAEMON | MODE_FOREGROUND | MODE_QUIET | |
Willy Tarreau | fbee713 | 2007-10-18 13:53:22 +0200 | [diff] [blame] | 590 | MODE_VERBOSE | MODE_DEBUG )); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 591 | |
| 592 | if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_QUIET))) { |
| 593 | Warning("<debug> mode incompatible with <quiet> and <daemon>. Keeping <debug> only.\n"); |
| 594 | global.mode &= ~(MODE_DAEMON | MODE_QUIET); |
| 595 | } |
| 596 | |
| 597 | if ((global.nbproc > 1) && !(global.mode & MODE_DAEMON)) { |
| 598 | if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG))) |
| 599 | Warning("<nbproc> is only meaningful in daemon mode. Setting limit to 1 process.\n"); |
| 600 | global.nbproc = 1; |
| 601 | } |
| 602 | |
| 603 | if (global.nbproc < 1) |
| 604 | global.nbproc = 1; |
| 605 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 606 | fdtab = (struct fdtab *)calloc(1, |
| 607 | sizeof(struct fdtab) * (global.maxsock)); |
| 608 | for (i = 0; i < global.maxsock; i++) { |
| 609 | fdtab[i].state = FD_STCLOSE; |
| 610 | } |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 611 | |
Willy Tarreau | ef1d1f8 | 2007-04-16 00:25:25 +0200 | [diff] [blame] | 612 | /* |
| 613 | * Note: we could register external pollers here. |
| 614 | * Built-in pollers have been registered before main(). |
| 615 | */ |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 616 | |
Willy Tarreau | 1e63130a | 2007-04-09 12:03:06 +0200 | [diff] [blame] | 617 | if (!(cfg_polling_mechanism & POLL_USE_KQUEUE)) |
| 618 | disable_poller("kqueue"); |
| 619 | |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 620 | if (!(cfg_polling_mechanism & POLL_USE_EPOLL)) |
| 621 | disable_poller("epoll"); |
| 622 | |
Willy Tarreau | de99e99 | 2007-04-16 00:53:59 +0200 | [diff] [blame] | 623 | if (!(cfg_polling_mechanism & POLL_USE_SEPOLL)) |
| 624 | disable_poller("sepoll"); |
| 625 | |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 626 | if (!(cfg_polling_mechanism & POLL_USE_POLL)) |
| 627 | disable_poller("poll"); |
| 628 | |
| 629 | if (!(cfg_polling_mechanism & POLL_USE_SELECT)) |
| 630 | disable_poller("select"); |
| 631 | |
| 632 | /* Note: we could disable any poller by name here */ |
| 633 | |
Willy Tarreau | 2ff7622 | 2007-04-09 19:29:56 +0200 | [diff] [blame] | 634 | if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) |
| 635 | list_pollers(stderr); |
| 636 | |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 637 | if (!init_pollers()) { |
Willy Tarreau | 2ff7622 | 2007-04-09 19:29:56 +0200 | [diff] [blame] | 638 | Alert("No polling mechanism available.\n"); |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 639 | exit(1); |
| 640 | } |
Willy Tarreau | 2ff7622 | 2007-04-09 19:29:56 +0200 | [diff] [blame] | 641 | if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) { |
| 642 | printf("Using %s() as the polling mechanism.\n", cur_poller.name); |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 643 | } |
| 644 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 645 | } |
| 646 | |
| 647 | void deinit(void) |
| 648 | { |
Willy Tarreau | 4d2d098 | 2007-05-14 00:39:29 +0200 | [diff] [blame] | 649 | struct proxy *p = proxy, *p0; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 650 | struct cap_hdr *h,*h_next; |
| 651 | struct server *s,*s_next; |
| 652 | struct listener *l,*l_next; |
Willy Tarreau | 0fc45a7 | 2007-06-17 00:36:03 +0200 | [diff] [blame] | 653 | struct acl_cond *cond, *condb; |
| 654 | struct hdr_exp *exp, *expb; |
Krzysztof Piotr Oledzki | a643baf | 2008-05-29 23:53:44 +0200 | [diff] [blame] | 655 | struct acl *acl, *aclb; |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 656 | struct switching_rule *rule, *ruleb; |
Willy Tarreau | b463dfb | 2008-06-07 23:08:56 +0200 | [diff] [blame] | 657 | struct redirect_rule *rdr, *rdrb; |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 658 | struct uri_auth *uap, *ua = NULL; |
| 659 | struct user_auth *user; |
Willy Tarreau | 0fc45a7 | 2007-06-17 00:36:03 +0200 | [diff] [blame] | 660 | int i; |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 661 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 662 | while (p) { |
Willy Tarreau | a534fea | 2008-08-03 12:19:50 +0200 | [diff] [blame] | 663 | free(p->id); |
| 664 | free(p->check_req); |
| 665 | free(p->cookie_name); |
| 666 | free(p->cookie_domain); |
| 667 | free(p->url_param_name); |
| 668 | free(p->capture_name); |
| 669 | free(p->monitor_uri); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 670 | |
Willy Tarreau | a534fea | 2008-08-03 12:19:50 +0200 | [diff] [blame] | 671 | for (i = 0; i < HTTP_ERR_SIZE; i++) |
| 672 | free(p->errmsg[i].str); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 673 | |
Willy Tarreau | a534fea | 2008-08-03 12:19:50 +0200 | [diff] [blame] | 674 | for (i = 0; i < p->nb_reqadd; i++) |
| 675 | free(p->req_add[i]); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 676 | |
Willy Tarreau | a534fea | 2008-08-03 12:19:50 +0200 | [diff] [blame] | 677 | for (i = 0; i < p->nb_rspadd; i++) |
| 678 | free(p->rsp_add[i]); |
Willy Tarreau | 0fc45a7 | 2007-06-17 00:36:03 +0200 | [diff] [blame] | 679 | |
| 680 | list_for_each_entry_safe(cond, condb, &p->block_cond, list) { |
| 681 | LIST_DEL(&cond->list); |
| 682 | prune_acl_cond(cond); |
| 683 | free(cond); |
| 684 | } |
| 685 | |
Willy Tarreau | b80c230 | 2007-11-30 20:51:32 +0100 | [diff] [blame] | 686 | list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) { |
| 687 | LIST_DEL(&cond->list); |
| 688 | prune_acl_cond(cond); |
| 689 | free(cond); |
| 690 | } |
| 691 | |
Willy Tarreau | 0fc45a7 | 2007-06-17 00:36:03 +0200 | [diff] [blame] | 692 | for (exp = p->req_exp; exp != NULL; ) { |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 693 | if (exp->preg) { |
Willy Tarreau | 0fc45a7 | 2007-06-17 00:36:03 +0200 | [diff] [blame] | 694 | regfree((regex_t *)exp->preg); |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 695 | free((regex_t *)exp->preg); |
| 696 | } |
| 697 | |
Willy Tarreau | 0fc45a7 | 2007-06-17 00:36:03 +0200 | [diff] [blame] | 698 | if (exp->replace && exp->action != ACT_SETBE) |
| 699 | free((char *)exp->replace); |
| 700 | expb = exp; |
| 701 | exp = exp->next; |
| 702 | free(expb); |
| 703 | } |
| 704 | |
| 705 | for (exp = p->rsp_exp; exp != NULL; ) { |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 706 | if (exp->preg) { |
Willy Tarreau | 0fc45a7 | 2007-06-17 00:36:03 +0200 | [diff] [blame] | 707 | regfree((regex_t *)exp->preg); |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 708 | free((regex_t *)exp->preg); |
| 709 | } |
| 710 | |
Willy Tarreau | 0fc45a7 | 2007-06-17 00:36:03 +0200 | [diff] [blame] | 711 | if (exp->replace && exp->action != ACT_SETBE) |
| 712 | free((char *)exp->replace); |
| 713 | expb = exp; |
| 714 | exp = exp->next; |
| 715 | free(expb); |
| 716 | } |
| 717 | |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 718 | /* build a list of unique uri_auths */ |
| 719 | if (!ua) |
| 720 | ua = p->uri_auth; |
| 721 | else { |
| 722 | /* check if p->uri_auth is unique */ |
| 723 | for (uap = ua; uap; uap=uap->next) |
| 724 | if (uap == p->uri_auth) |
| 725 | break; |
| 726 | |
Willy Tarreau | accc4e1 | 2008-06-24 11:14:45 +0200 | [diff] [blame] | 727 | if (!uap && p->uri_auth) { |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 728 | /* add it, if it is */ |
| 729 | p->uri_auth->next = ua; |
| 730 | ua = p->uri_auth; |
| 731 | } |
| 732 | } |
Willy Tarreau | 0fc45a7 | 2007-06-17 00:36:03 +0200 | [diff] [blame] | 733 | |
Krzysztof Piotr Oledzki | a643baf | 2008-05-29 23:53:44 +0200 | [diff] [blame] | 734 | list_for_each_entry_safe(acl, aclb, &p->acl, list) { |
| 735 | LIST_DEL(&acl->list); |
| 736 | prune_acl(acl); |
| 737 | free(acl); |
| 738 | } |
| 739 | |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 740 | list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) { |
| 741 | LIST_DEL(&rule->list); |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 742 | prune_acl_cond(rule->cond); |
| 743 | free(rule->cond); |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 744 | free(rule); |
| 745 | } |
| 746 | |
Willy Tarreau | b463dfb | 2008-06-07 23:08:56 +0200 | [diff] [blame] | 747 | list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) { |
| 748 | LIST_DEL(&rdr->list); |
| 749 | prune_acl_cond(rdr->cond); |
| 750 | free(rdr->cond); |
| 751 | free(rdr->rdr_str); |
| 752 | free(rdr); |
| 753 | } |
| 754 | |
Willy Tarreau | a534fea | 2008-08-03 12:19:50 +0200 | [diff] [blame] | 755 | free(p->appsession_name); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 756 | |
| 757 | h = p->req_cap; |
| 758 | while (h) { |
| 759 | h_next = h->next; |
Willy Tarreau | a534fea | 2008-08-03 12:19:50 +0200 | [diff] [blame] | 760 | free(h->name); |
Willy Tarreau | cf7f320 | 2007-05-13 22:46:04 +0200 | [diff] [blame] | 761 | pool_destroy2(h->pool); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 762 | free(h); |
| 763 | h = h_next; |
| 764 | }/* end while(h) */ |
| 765 | |
| 766 | h = p->rsp_cap; |
| 767 | while (h) { |
| 768 | h_next = h->next; |
Willy Tarreau | a534fea | 2008-08-03 12:19:50 +0200 | [diff] [blame] | 769 | free(h->name); |
Willy Tarreau | cf7f320 | 2007-05-13 22:46:04 +0200 | [diff] [blame] | 770 | pool_destroy2(h->pool); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 771 | free(h); |
| 772 | h = h_next; |
| 773 | }/* end while(h) */ |
Krzysztof Piotr Oledzki | a643baf | 2008-05-29 23:53:44 +0200 | [diff] [blame] | 774 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 775 | s = p->srv; |
| 776 | while (s) { |
| 777 | s_next = s->next; |
Krzysztof Piotr Oledzki | a643baf | 2008-05-29 23:53:44 +0200 | [diff] [blame] | 778 | |
| 779 | if (s->check) { |
| 780 | task_delete(s->check); |
| 781 | task_free(s->check); |
| 782 | } |
| 783 | |
Willy Tarreau | a534fea | 2008-08-03 12:19:50 +0200 | [diff] [blame] | 784 | free(s->id); |
| 785 | free(s->cookie); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 786 | free(s); |
| 787 | s = s_next; |
| 788 | }/* end while(s) */ |
Krzysztof Piotr Oledzki | a643baf | 2008-05-29 23:53:44 +0200 | [diff] [blame] | 789 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 790 | l = p->listen; |
| 791 | while (l) { |
| 792 | l_next = l->next; |
| 793 | free(l); |
| 794 | l = l_next; |
| 795 | }/* end while(l) */ |
Krzysztof Piotr Oledzki | a643baf | 2008-05-29 23:53:44 +0200 | [diff] [blame] | 796 | |
Willy Tarreau | cf7f320 | 2007-05-13 22:46:04 +0200 | [diff] [blame] | 797 | pool_destroy2(p->req_cap_pool); |
| 798 | pool_destroy2(p->rsp_cap_pool); |
Krzysztof Piotr Oledzki | a643baf | 2008-05-29 23:53:44 +0200 | [diff] [blame] | 799 | pool_destroy2(p->hdr_idx_pool); |
Willy Tarreau | 4d2d098 | 2007-05-14 00:39:29 +0200 | [diff] [blame] | 800 | p0 = p; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 801 | p = p->next; |
Willy Tarreau | 4d2d098 | 2007-05-14 00:39:29 +0200 | [diff] [blame] | 802 | free(p0); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 803 | }/* end while(p) */ |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 804 | |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 805 | while (ua) { |
| 806 | uap = ua; |
| 807 | ua = ua->next; |
| 808 | |
Willy Tarreau | a534fea | 2008-08-03 12:19:50 +0200 | [diff] [blame] | 809 | free(uap->uri_prefix); |
| 810 | free(uap->auth_realm); |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 811 | |
| 812 | while (uap->users) { |
| 813 | user = uap->users; |
| 814 | uap->users = uap->users->next; |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 815 | free(user->user_pwd); |
| 816 | free(user); |
| 817 | } |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 818 | free(uap); |
| 819 | } |
| 820 | |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 821 | protocol_unbind_all(); |
| 822 | |
Willy Tarreau | a534fea | 2008-08-03 12:19:50 +0200 | [diff] [blame] | 823 | free(global.chroot); global.chroot = NULL; |
| 824 | free(global.pidfile); global.pidfile = NULL; |
| 825 | free(fdtab); fdtab = NULL; |
| 826 | free(oldpids); oldpids = NULL; |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 827 | |
Willy Tarreau | c6ca1a0 | 2007-05-13 19:43:47 +0200 | [diff] [blame] | 828 | pool_destroy2(pool2_session); |
Willy Tarreau | 7341d94 | 2007-05-13 19:56:02 +0200 | [diff] [blame] | 829 | pool_destroy2(pool2_buffer); |
Willy Tarreau | 332f8bf | 2007-05-13 21:36:56 +0200 | [diff] [blame] | 830 | pool_destroy2(pool2_requri); |
Willy Tarreau | c6ca1a0 | 2007-05-13 19:43:47 +0200 | [diff] [blame] | 831 | pool_destroy2(pool2_task); |
Willy Tarreau | 086b3b4 | 2007-05-13 21:45:51 +0200 | [diff] [blame] | 832 | pool_destroy2(pool2_capture); |
Willy Tarreau | 63963c6 | 2007-05-13 21:29:55 +0200 | [diff] [blame] | 833 | pool_destroy2(pool2_appsess); |
Willy Tarreau | e4d7e55 | 2007-05-13 20:19:55 +0200 | [diff] [blame] | 834 | pool_destroy2(pool2_pendconn); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 835 | |
| 836 | if (have_appsession) { |
Willy Tarreau | 63963c6 | 2007-05-13 21:29:55 +0200 | [diff] [blame] | 837 | pool_destroy2(apools.serverid); |
| 838 | pool_destroy2(apools.sessid); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 839 | } |
Krzysztof Piotr Oledzki | a643baf | 2008-05-29 23:53:44 +0200 | [diff] [blame] | 840 | |
| 841 | deinit_pollers(); |
| 842 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 843 | } /* end deinit() */ |
| 844 | |
| 845 | /* sends the signal <sig> to all pids found in <oldpids> */ |
| 846 | static void tell_old_pids(int sig) |
| 847 | { |
| 848 | int p; |
| 849 | for (p = 0; p < nb_oldpids; p++) |
| 850 | kill(oldpids[p], sig); |
| 851 | } |
| 852 | |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 853 | /* |
| 854 | * Runs the polling loop |
| 855 | * |
| 856 | * FIXME: |
| 857 | * - we still use 'listeners' to check whether we want to stop or not. |
| 858 | * |
| 859 | */ |
| 860 | void run_poll_loop() |
| 861 | { |
Willy Tarreau | 0c303ee | 2008-07-07 00:09:58 +0200 | [diff] [blame] | 862 | int next; |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 863 | |
Willy Tarreau | b0b37bc | 2008-06-23 14:00:57 +0200 | [diff] [blame] | 864 | tv_update_date(0,1); |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 865 | while (1) { |
Willy Tarreau | 58b458d | 2008-06-29 22:40:23 +0200 | [diff] [blame] | 866 | /* Check if we can expire some tasks */ |
| 867 | wake_expired_tasks(&next); |
| 868 | |
| 869 | /* Process a few tasks */ |
Willy Tarreau | d825eef | 2007-05-12 22:35:00 +0200 | [diff] [blame] | 870 | process_runnable_tasks(&next); |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 871 | |
Willy Tarreau | 58b458d | 2008-06-29 22:40:23 +0200 | [diff] [blame] | 872 | /* maintain all proxies in a consistent state. This should quickly |
| 873 | * become a task because it becomes expensive when there are huge |
| 874 | * numbers of proxies. */ |
| 875 | maintain_proxies(&next); |
| 876 | |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 877 | /* stop when there's no connection left and we don't allow them anymore */ |
| 878 | if (!actconn && listeners == 0) |
| 879 | break; |
| 880 | |
Willy Tarreau | 58b458d | 2008-06-29 22:40:23 +0200 | [diff] [blame] | 881 | /* The poller will ensure it returns around <next> */ |
Willy Tarreau | 0c303ee | 2008-07-07 00:09:58 +0200 | [diff] [blame] | 882 | cur_poller.poll(&cur_poller, next); |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 883 | } |
| 884 | } |
| 885 | |
| 886 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 887 | int main(int argc, char **argv) |
| 888 | { |
| 889 | int err, retry; |
| 890 | struct rlimit limit; |
| 891 | FILE *pidfile = NULL; |
| 892 | init(argc, argv); |
| 893 | |
| 894 | signal(SIGQUIT, dump); |
| 895 | signal(SIGUSR1, sig_soft_stop); |
| 896 | signal(SIGHUP, sig_dump_state); |
| 897 | #ifdef DEBUG_MEMORY |
| 898 | signal(SIGINT, sig_int); |
| 899 | signal(SIGTERM, sig_term); |
| 900 | #endif |
| 901 | |
| 902 | /* on very high loads, a sigpipe sometimes happen just between the |
| 903 | * getsockopt() which tells "it's OK to write", and the following write :-( |
| 904 | */ |
Willy Tarreau | 5bd8c37 | 2009-01-19 00:32:22 +0100 | [diff] [blame] | 905 | #if !defined(MSG_NOSIGNAL) || defined(CONFIG_HAP_LINUX_SPLICE) |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 906 | signal(SIGPIPE, SIG_IGN); |
| 907 | #endif |
| 908 | |
| 909 | /* We will loop at most 100 times with 10 ms delay each time. |
| 910 | * That's at most 1 second. We only send a signal to old pids |
| 911 | * if we cannot grab at least one port. |
| 912 | */ |
| 913 | retry = MAX_START_RETRIES; |
| 914 | err = ERR_NONE; |
| 915 | while (retry >= 0) { |
| 916 | struct timeval w; |
| 917 | err = start_proxies(retry == 0 || nb_oldpids == 0); |
Willy Tarreau | e13e925 | 2007-12-20 23:05:50 +0100 | [diff] [blame] | 918 | /* exit the loop on no error or fatal error */ |
| 919 | if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE) |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 920 | break; |
| 921 | if (nb_oldpids == 0) |
| 922 | break; |
| 923 | |
| 924 | /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on |
| 925 | * listening sockets. So on those platforms, it would be wiser to |
| 926 | * simply send SIGUSR1, which will not be undoable. |
| 927 | */ |
| 928 | tell_old_pids(SIGTTOU); |
| 929 | /* give some time to old processes to stop listening */ |
| 930 | w.tv_sec = 0; |
| 931 | w.tv_usec = 10*1000; |
| 932 | select(0, NULL, NULL, NULL, &w); |
| 933 | retry--; |
| 934 | } |
| 935 | |
| 936 | /* Note: start_proxies() sends an alert when it fails. */ |
| 937 | if (err != ERR_NONE) { |
| 938 | if (retry != MAX_START_RETRIES && nb_oldpids) |
| 939 | tell_old_pids(SIGTTIN); |
| 940 | exit(1); |
| 941 | } |
| 942 | |
| 943 | if (listeners == 0) { |
| 944 | Alert("[%s.main()] No enabled listener found (check the <listen> keywords) ! Exiting.\n", argv[0]); |
| 945 | /* Note: we don't have to send anything to the old pids because we |
| 946 | * never stopped them. */ |
| 947 | exit(1); |
| 948 | } |
| 949 | |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 950 | if (protocol_bind_all() != ERR_NONE) { |
| 951 | Alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]); |
| 952 | protocol_unbind_all(); /* cleanup everything we can */ |
| 953 | if (nb_oldpids) |
| 954 | tell_old_pids(SIGTTIN); |
| 955 | exit(1); |
| 956 | } |
| 957 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 958 | /* prepare pause/play signals */ |
| 959 | signal(SIGTTOU, sig_pause); |
| 960 | signal(SIGTTIN, sig_listen); |
| 961 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 962 | /* MODE_QUIET can inhibit alerts and warnings below this line */ |
| 963 | |
| 964 | global.mode &= ~MODE_STARTING; |
| 965 | if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) { |
| 966 | /* detach from the tty */ |
| 967 | fclose(stdin); fclose(stdout); fclose(stderr); |
| 968 | close(0); close(1); close(2); |
| 969 | } |
| 970 | |
| 971 | /* open log & pid files before the chroot */ |
| 972 | if (global.mode & MODE_DAEMON && global.pidfile != NULL) { |
| 973 | int pidfd; |
| 974 | unlink(global.pidfile); |
| 975 | pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644); |
| 976 | if (pidfd < 0) { |
| 977 | Alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile); |
| 978 | if (nb_oldpids) |
| 979 | tell_old_pids(SIGTTIN); |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 980 | protocol_unbind_all(); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 981 | exit(1); |
| 982 | } |
| 983 | pidfile = fdopen(pidfd, "w"); |
| 984 | } |
| 985 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 986 | /* ulimits */ |
| 987 | if (!global.rlimit_nofile) |
| 988 | global.rlimit_nofile = global.maxsock; |
| 989 | |
| 990 | if (global.rlimit_nofile) { |
| 991 | limit.rlim_cur = limit.rlim_max = global.rlimit_nofile; |
| 992 | if (setrlimit(RLIMIT_NOFILE, &limit) == -1) { |
| 993 | Warning("[%s.main()] Cannot raise FD limit to %d.\n", argv[0], global.rlimit_nofile); |
| 994 | } |
| 995 | } |
| 996 | |
| 997 | if (global.rlimit_memmax) { |
| 998 | limit.rlim_cur = limit.rlim_max = |
| 999 | global.rlimit_memmax * 1048576 / global.nbproc; |
| 1000 | #ifdef RLIMIT_AS |
| 1001 | if (setrlimit(RLIMIT_AS, &limit) == -1) { |
| 1002 | Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n", |
| 1003 | argv[0], global.rlimit_memmax); |
| 1004 | } |
| 1005 | #else |
| 1006 | if (setrlimit(RLIMIT_DATA, &limit) == -1) { |
| 1007 | Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n", |
| 1008 | argv[0], global.rlimit_memmax); |
| 1009 | } |
| 1010 | #endif |
| 1011 | } |
| 1012 | |
Willy Tarreau | 6d1a988 | 2007-01-07 02:03:04 +0100 | [diff] [blame] | 1013 | #ifdef CONFIG_HAP_TCPSPLICE |
| 1014 | if (global.last_checks & LSTCHK_TCPSPLICE) { |
| 1015 | if (tcp_splice_start() < 0) { |
| 1016 | Alert("[%s.main()] Cannot enable tcp_splice.\n" |
| 1017 | " Make sure you have enough permissions and that the module is loadable.\n" |
| 1018 | " Alternatively, you may disable the 'tcpsplice' options in the configuration.\n" |
| 1019 | "", argv[0], global.gid); |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 1020 | protocol_unbind_all(); |
Willy Tarreau | 6d1a988 | 2007-01-07 02:03:04 +0100 | [diff] [blame] | 1021 | exit(1); |
| 1022 | } |
| 1023 | } |
| 1024 | #endif |
| 1025 | |
Willy Tarreau | b38651a | 2007-03-24 17:24:39 +0100 | [diff] [blame] | 1026 | #ifdef CONFIG_HAP_CTTPROXY |
| 1027 | if (global.last_checks & LSTCHK_CTTPROXY) { |
| 1028 | int ret; |
| 1029 | |
| 1030 | ret = check_cttproxy_version(); |
| 1031 | if (ret < 0) { |
| 1032 | Alert("[%s.main()] Cannot enable cttproxy.\n%s", |
| 1033 | argv[0], |
| 1034 | (ret == -1) ? " Incorrect module version.\n" |
| 1035 | : " Make sure you have enough permissions and that the module is loaded.\n"); |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 1036 | protocol_unbind_all(); |
Willy Tarreau | b38651a | 2007-03-24 17:24:39 +0100 | [diff] [blame] | 1037 | exit(1); |
| 1038 | } |
| 1039 | } |
| 1040 | #endif |
| 1041 | |
| 1042 | if ((global.last_checks & LSTCHK_NETADM) && global.uid) { |
| 1043 | Alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n" |
| 1044 | "", argv[0], global.gid); |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 1045 | protocol_unbind_all(); |
Willy Tarreau | b38651a | 2007-03-24 17:24:39 +0100 | [diff] [blame] | 1046 | exit(1); |
| 1047 | } |
| 1048 | |
Willy Tarreau | f223cc0 | 2007-10-15 18:57:08 +0200 | [diff] [blame] | 1049 | /* chroot if needed */ |
| 1050 | if (global.chroot != NULL) { |
| 1051 | if (chroot(global.chroot) == -1) { |
| 1052 | Alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot); |
| 1053 | if (nb_oldpids) |
| 1054 | tell_old_pids(SIGTTIN); |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 1055 | protocol_unbind_all(); |
Willy Tarreau | f223cc0 | 2007-10-15 18:57:08 +0200 | [diff] [blame] | 1056 | exit(1); |
| 1057 | } |
| 1058 | chdir("/"); |
| 1059 | } |
| 1060 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1061 | if (nb_oldpids) |
| 1062 | tell_old_pids(oldpids_sig); |
| 1063 | |
| 1064 | /* Note that any error at this stage will be fatal because we will not |
| 1065 | * be able to restart the old pids. |
| 1066 | */ |
| 1067 | |
| 1068 | /* setgid / setuid */ |
| 1069 | if (global.gid && setgid(global.gid) == -1) { |
| 1070 | Alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid); |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 1071 | protocol_unbind_all(); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1072 | exit(1); |
| 1073 | } |
| 1074 | |
| 1075 | if (global.uid && setuid(global.uid) == -1) { |
| 1076 | Alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid); |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 1077 | protocol_unbind_all(); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1078 | exit(1); |
| 1079 | } |
| 1080 | |
| 1081 | /* check ulimits */ |
| 1082 | limit.rlim_cur = limit.rlim_max = 0; |
| 1083 | getrlimit(RLIMIT_NOFILE, &limit); |
| 1084 | if (limit.rlim_cur < global.maxsock) { |
| 1085 | Warning("[%s.main()] FD limit (%d) too low for maxconn=%d/maxsock=%d. Please raise 'ulimit-n' to %d or more to avoid any trouble.\n", |
| 1086 | argv[0], limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock); |
| 1087 | } |
| 1088 | |
| 1089 | if (global.mode & MODE_DAEMON) { |
| 1090 | int ret = 0; |
| 1091 | int proc; |
| 1092 | |
| 1093 | /* the father launches the required number of processes */ |
| 1094 | for (proc = 0; proc < global.nbproc; proc++) { |
| 1095 | ret = fork(); |
| 1096 | if (ret < 0) { |
| 1097 | Alert("[%s.main()] Cannot fork.\n", argv[0]); |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 1098 | protocol_unbind_all(); |
Willy Tarreau | d680371 | 2007-10-16 07:44:56 +0200 | [diff] [blame] | 1099 | exit(1); /* there has been an error */ |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1100 | } |
| 1101 | else if (ret == 0) /* child breaks here */ |
| 1102 | break; |
| 1103 | if (pidfile != NULL) { |
| 1104 | fprintf(pidfile, "%d\n", ret); |
| 1105 | fflush(pidfile); |
| 1106 | } |
Willy Tarreau | dcd4771 | 2007-11-04 23:35:08 +0100 | [diff] [blame] | 1107 | relative_pid++; /* each child will get a different one */ |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1108 | } |
| 1109 | /* close the pidfile both in children and father */ |
| 1110 | if (pidfile != NULL) |
| 1111 | fclose(pidfile); |
| 1112 | free(global.pidfile); |
Krzysztof Oledzki | 56f1e8b | 2007-10-11 18:30:14 +0200 | [diff] [blame] | 1113 | global.pidfile = NULL; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1114 | |
| 1115 | if (proc == global.nbproc) |
| 1116 | exit(0); /* parent must leave */ |
| 1117 | |
| 1118 | /* if we're NOT in QUIET mode, we should now close the 3 first FDs to ensure |
| 1119 | * that we can detach from the TTY. We MUST NOT do it in other cases since |
| 1120 | * it would have already be done, and 0-2 would have been affected to listening |
| 1121 | * sockets |
| 1122 | */ |
Willy Tarreau | 106cb76 | 2008-11-16 07:40:34 +0100 | [diff] [blame] | 1123 | if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) { |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1124 | /* detach from the tty */ |
| 1125 | fclose(stdin); fclose(stdout); fclose(stderr); |
| 1126 | close(0); close(1); close(2); /* close all fd's */ |
Willy Tarreau | 106cb76 | 2008-11-16 07:40:34 +0100 | [diff] [blame] | 1127 | global.mode &= ~MODE_VERBOSE; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1128 | global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */ |
| 1129 | } |
| 1130 | pid = getpid(); /* update child's pid */ |
| 1131 | setsid(); |
Willy Tarreau | 2ff7622 | 2007-04-09 19:29:56 +0200 | [diff] [blame] | 1132 | fork_poller(); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1133 | } |
| 1134 | |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 1135 | protocol_enable_all(); |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 1136 | /* |
| 1137 | * That's it : the central polling loop. Run until we stop. |
| 1138 | */ |
| 1139 | run_poll_loop(); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1140 | |
| 1141 | /* Free all Hash Keys and all Hash elements */ |
| 1142 | appsession_cleanup(); |
| 1143 | /* Do some cleanup */ |
| 1144 | deinit(); |
| 1145 | |
| 1146 | exit(0); |
| 1147 | } |
| 1148 | |
| 1149 | |
| 1150 | /* |
| 1151 | * Local variables: |
| 1152 | * c-indent-level: 8 |
| 1153 | * c-basic-offset: 8 |
| 1154 | * End: |
| 1155 | */ |