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Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
2 * HA-Proxy : High Availability-enabled HTTP/TCP proxy
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01003 * Copyright 2000-2010 Willy Tarreau <w@1wt.eu>.
Willy Tarreaubaaee002006-06-26 02:48:02 +02004 *
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 *
Willy Tarreaubaaee002006-06-26 02:48:02 +020026 */
27
28#include <stdio.h>
29#include <stdlib.h>
30#include <unistd.h>
31#include <string.h>
32#include <ctype.h>
33#include <sys/time.h>
34#include <sys/types.h>
35#include <sys/socket.h>
36#include <netinet/tcp.h>
37#include <netinet/in.h>
38#include <arpa/inet.h>
39#include <netdb.h>
40#include <fcntl.h>
41#include <errno.h>
42#include <signal.h>
43#include <stdarg.h>
44#include <sys/resource.h>
45#include <time.h>
46#include <syslog.h>
47
48#ifdef DEBUG_FULL
49#include <assert.h>
50#endif
51
Willy Tarreau2dd0d472006-06-29 17:53:05 +020052#include <common/appsession.h>
53#include <common/base64.h>
54#include <common/cfgparse.h>
55#include <common/compat.h>
56#include <common/config.h>
57#include <common/defaults.h>
Willy Tarreaud740bab2007-10-28 11:14:07 +010058#include <common/errors.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020059#include <common/memory.h>
60#include <common/mini-clist.h>
61#include <common/regex.h>
62#include <common/standard.h>
63#include <common/time.h>
64#include <common/uri_auth.h>
65#include <common/version.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020066
67#include <types/capture.h>
68#include <types/global.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020069
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +010070#include <proto/auth.h>
Willy Tarreau0fc45a72007-06-17 00:36:03 +020071#include <proto/acl.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020072#include <proto/backend.h>
73#include <proto/buffers.h>
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +020074#include <proto/checks.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020075#include <proto/fd.h>
76#include <proto/log.h>
Willy Tarreaudd815982007-10-16 12:25:14 +020077#include <proto/protocols.h>
Willy Tarreau80587432006-12-24 17:47:20 +010078#include <proto/proto_http.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020079#include <proto/proxy.h>
80#include <proto/queue.h>
81#include <proto/server.h>
Willy Tarreauc6ca1a02007-05-13 19:43:47 +020082#include <proto/session.h>
Willy Tarreau29857942009-05-10 09:01:21 +020083#include <proto/signal.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020084#include <proto/stream_sock.h>
85#include <proto/task.h>
86
Willy Tarreaub38651a2007-03-24 17:24:39 +010087#ifdef CONFIG_HAP_CTTPROXY
88#include <proto/cttproxy.h>
89#endif
90
Willy Tarreaubaaee002006-06-26 02:48:02 +020091/*********************************************************************/
92
93/*********************************************************************/
94
Willy Tarreau477ecd82010-01-03 21:12:30 +010095/* list of config files */
96static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles);
Willy Tarreaubaaee002006-06-26 02:48:02 +020097char *progname = NULL; /* program name */
98int pid; /* current process id */
Willy Tarreau28156642007-11-26 16:13:36 +010099int relative_pid = 1; /* process id starting at 1 */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200100
101/* global options */
102struct global global = {
103 logfac1 : -1,
104 logfac2 : -1,
105 loglev1 : 7, /* max syslog level : debug */
106 loglev2 : 7,
Willy Tarreau03f6d672007-10-18 15:15:57 +0200107 .stats_sock = {
Willy Tarreau03f6d672007-10-18 15:15:57 +0200108 .maxconn = 10, /* 10 concurrent stats connections */
109 .perm = {
110 .ux = {
111 .uid = -1,
112 .gid = -1,
113 .mode = 0,
114 }
115 }
Willy Tarreau27a674e2009-08-17 07:23:33 +0200116 },
117 .tune = {
118 .bufsize = BUFSIZE,
119 .maxrewrite = MAXREWRITE,
120 },
Willy Tarreaubaaee002006-06-26 02:48:02 +0200121 /* others NULL OK */
122};
123
124/*********************************************************************/
125
126int stopping; /* non zero means stopping in progress */
127
128/* Here we store informations about the pids of the processes we may pause
129 * or kill. We will send them a signal every 10 ms until we can bind to all
130 * our ports. With 200 retries, that's about 2 seconds.
131 */
132#define MAX_START_RETRIES 200
133static int nb_oldpids = 0;
134static int *oldpids = NULL;
135static int oldpids_sig; /* use USR1 or TERM */
136
137/* this is used to drain data, and as a temporary buffer for sprintf()... */
138char trash[BUFSIZE];
139
Willy Tarreau8096de92010-02-26 11:12:27 +0100140/* this buffer is always the same size as standard buffers and is used for
141 * swapping data inside a buffer.
142 */
143char *swap_buffer = NULL;
144
Willy Tarreaubaaee002006-06-26 02:48:02 +0200145const int zero = 0;
146const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200147const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200148
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100149char hostname[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200150
151
152/*********************************************************************/
153/* general purpose functions ***************************************/
154/*********************************************************************/
155
156void display_version()
157{
158 printf("HA-Proxy version " HAPROXY_VERSION " " HAPROXY_DATE"\n");
Willy Tarreaub05613d2010-02-02 10:18:28 +0100159 printf("Copyright 2000-2010 Willy Tarreau <w@1wt.eu>\n\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200160}
161
Willy Tarreau7b066db2007-12-02 11:28:59 +0100162void display_build_opts()
163{
164 printf("Build options :"
165#ifdef BUILD_TARGET
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100166 "\n TARGET = " BUILD_TARGET
Willy Tarreau7b066db2007-12-02 11:28:59 +0100167#endif
168#ifdef BUILD_CPU
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100169 "\n CPU = " BUILD_CPU
Willy Tarreau7b066db2007-12-02 11:28:59 +0100170#endif
171#ifdef BUILD_CC
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100172 "\n CC = " BUILD_CC
173#endif
174#ifdef BUILD_CFLAGS
175 "\n CFLAGS = " BUILD_CFLAGS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100176#endif
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100177#ifdef BUILD_OPTIONS
178 "\n OPTIONS = " BUILD_OPTIONS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100179#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200180 "\n\nDefault settings :"
181 "\n maxconn = %d, bufsize = %d, maxrewrite = %d, maxpollevents = %d"
182 "\n\n",
183 DEFAULT_MAXCONN, BUFSIZE, MAXREWRITE, MAX_POLL_EVENTS);
Willy Tarreaube5b6852009-10-03 18:57:08 +0200184
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100185 printf("Encrypted password support via crypt(3): "
186#ifdef CONFIG_HAP_CRYPT
187 "yes"
188#else
189 "no"
190#endif
191 "\n");
192
193 putchar('\n');
194
Willy Tarreaube5b6852009-10-03 18:57:08 +0200195 list_pollers(stdout);
196 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100197}
198
Willy Tarreaubaaee002006-06-26 02:48:02 +0200199/*
200 * This function prints the command line usage and exits
201 */
202void usage(char *name)
203{
204 display_version();
205 fprintf(stderr,
Willy Tarreau5d01a632009-06-22 16:02:30 +0200206 "Usage : %s [-f <cfgfile>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200207 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
208 " [ -p <pidfile> ] [ -m <max megs> ]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100209 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200210 " -d enters debug mode ; -db only disables background mode.\n"
211 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau6bde87b2009-05-18 16:29:51 +0200212 " -D goes daemon\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200213 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200214 " -c check mode : only check config files and exit\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200215 " -n sets the maximum total # of connections (%d)\n"
216 " -m limits the usable amount of memory (in MB)\n"
217 " -N sets the default, per-proxy maximum # of connections (%d)\n"
218 " -p writes pids of all children to this file\n"
219#if defined(ENABLE_EPOLL)
220 " -de disables epoll() usage even when available\n"
221#endif
Willy Tarreaude99e992007-04-16 00:53:59 +0200222#if defined(ENABLE_SEPOLL)
223 " -ds disables speculative epoll() usage even when available\n"
224#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200225#if defined(ENABLE_KQUEUE)
226 " -dk disables kqueue() usage even when available\n"
227#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200228#if defined(ENABLE_POLL)
229 " -dp disables poll() usage even when available\n"
230#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200231#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100232 " -dS disables splice usage (broken on old kernels)\n"
233#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200234 " -sf/-st [pid ]* finishes/terminates old pids. Must be last arguments.\n"
235 "\n",
236 name, DEFAULT_MAXCONN, cfg_maxpconn);
237 exit(1);
238}
239
240
241
242/*********************************************************************/
243/* more specific functions ***************************************/
244/*********************************************************************/
245
246/*
247 * upon SIGUSR1, let's have a soft stop.
248 */
249void sig_soft_stop(int sig)
250{
251 soft_stop();
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200252 pool_gc2();
Willy Tarreau01b3a532009-05-10 09:59:50 +0200253 signal_register(sig, SIG_IGN);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200254}
255
256/*
257 * upon SIGTTOU, we pause everything
258 */
259void sig_pause(int sig)
260{
261 pause_proxies();
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200262 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200263}
264
265/*
266 * upon SIGTTIN, let's have a soft stop.
267 */
268void sig_listen(int sig)
269{
270 listen_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200271}
272
273/*
274 * this function dumps every server's state when the process receives SIGHUP.
275 */
276void sig_dump_state(int sig)
277{
278 struct proxy *p = proxy;
279
280 Warning("SIGHUP received, dumping servers states.\n");
281 while (p) {
282 struct server *s = p->srv;
283
284 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
285 while (s) {
286 snprintf(trash, sizeof(trash),
Willy Tarreau3b88d442009-04-11 20:44:08 +0200287 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
Willy Tarreaubaaee002006-06-26 02:48:02 +0200288 p->id, s->id,
289 (s->state & SRV_RUNNING) ? "UP" : "DOWN",
Krzysztof Piotr Oledzki052d4fd2009-10-04 14:52:57 +0200290 s->cur_sess, s->nbpend, s->counters.cum_sess);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200291 Warning("%s\n", trash);
292 send_log(p, LOG_NOTICE, "%s\n", trash);
293 s = s->next;
294 }
295
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200296 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
297 if (!p->srv) {
298 snprintf(trash, sizeof(trash),
Willy Tarreau3b88d442009-04-11 20:44:08 +0200299 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200300 p->id,
Krzysztof Piotr Oledzki052d4fd2009-10-04 14:52:57 +0200301 p->feconn, p->beconn, p->totpend, p->nbpend, p->counters.cum_feconn, p->counters.cum_beconn);
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200302 } else if (p->srv_act == 0) {
Willy Tarreaubaaee002006-06-26 02:48:02 +0200303 snprintf(trash, sizeof(trash),
Willy Tarreau3b88d442009-04-11 20:44:08 +0200304 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
Willy Tarreaubaaee002006-06-26 02:48:02 +0200305 p->id,
306 (p->srv_bck) ? "is running on backup servers" : "has no server available",
Krzysztof Piotr Oledzki052d4fd2009-10-04 14:52:57 +0200307 p->feconn, p->beconn, p->totpend, p->nbpend, p->counters.cum_feconn, p->counters.cum_beconn);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200308 } else {
309 snprintf(trash, sizeof(trash),
310 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
Willy Tarreau3b88d442009-04-11 20:44:08 +0200311 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
Willy Tarreaubaaee002006-06-26 02:48:02 +0200312 p->id, p->srv_act, p->srv_bck,
Krzysztof Piotr Oledzki052d4fd2009-10-04 14:52:57 +0200313 p->feconn, p->beconn, p->totpend, p->nbpend, p->counters.cum_feconn, p->counters.cum_beconn);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200314 }
315 Warning("%s\n", trash);
316 send_log(p, LOG_NOTICE, "%s\n", trash);
317
318 p = p->next;
319 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200320}
321
322void dump(int sig)
323{
Willy Tarreau96bcfd72007-04-29 10:41:56 +0200324#if 0
Willy Tarreau964c9362007-01-07 00:38:00 +0100325 struct task *t;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200326 struct session *s;
Willy Tarreau964c9362007-01-07 00:38:00 +0100327 struct rb_node *node;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200328
Willy Tarreau964c9362007-01-07 00:38:00 +0100329 for(node = rb_first(&wait_queue[0]);
330 node != NULL; node = rb_next(node)) {
331 t = rb_entry(node, struct task, rb_node);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200332 s = t->context;
333 qfprintf(stderr,"[dump] wq: task %p, still %ld ms, "
Willy Tarreau7e5067d2008-12-07 16:27:56 +0100334 "cli=%d, srv=%d, req=%d, rep=%d\n",
Willy Tarreau42aae5c2007-04-29 17:43:56 +0200335 s, tv_ms_remain(&now, &t->expire),
Willy Tarreau7e5067d2008-12-07 16:27:56 +0100336 s->si[0].state,
337 s->si[1].state,
338 s->req->l, s->rep?s->rep->l:0);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200339 }
Willy Tarreau96bcfd72007-04-29 10:41:56 +0200340#endif
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200341 /* dump memory usage then free everything possible */
342 dump_pools();
343 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200344}
345
346#ifdef DEBUG_MEMORY
347static void fast_stop(void)
348{
349 struct proxy *p;
350 p = proxy;
351 while (p) {
352 p->grace = 0;
353 p = p->next;
354 }
355 soft_stop();
356}
357
358void sig_int(int sig)
359{
360 /* This would normally be a hard stop,
361 but we want to be sure about deallocation,
362 and so on, so we do a soft stop with
363 0 GRACE time
364 */
365 fast_stop();
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200366 pool_gc2();
Willy Tarreau01b3a532009-05-10 09:59:50 +0200367 /* If we are killed twice, we decide to die */
368 signal_register(sig, SIG_DFL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200369}
370
371void sig_term(int sig)
372{
373 /* This would normally be a hard stop,
374 but we want to be sure about deallocation,
375 and so on, so we do a soft stop with
376 0 GRACE time
377 */
378 fast_stop();
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200379 pool_gc2();
Willy Tarreau01b3a532009-05-10 09:59:50 +0200380 /* If we are killed twice, we decide to die */
381 signal_register(sig, SIG_DFL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200382}
383#endif
384
385
386/*
387 * This function initializes all the necessary variables. It only returns
388 * if everything is OK. If something fails, it exits.
389 */
390void init(int argc, char **argv)
391{
392 int i;
393 int arg_mode = 0; /* MODE_DEBUG, ... */
394 char *old_argv = *argv;
395 char *tmp;
396 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +0200397 int err_code = 0;
Willy Tarreau477ecd82010-01-03 21:12:30 +0100398 struct wordlist *wl;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200399
Willy Tarreaubaaee002006-06-26 02:48:02 +0200400 /*
401 * Initialize the previously static variables.
402 */
403
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100404 totalconn = actconn = maxfd = listeners = stopping = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200405
406
407#ifdef HAPROXY_MEMMAX
408 global.rlimit_memmax = HAPROXY_MEMMAX;
409#endif
410
Willy Tarreaub0b37bc2008-06-23 14:00:57 +0200411 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200412 start_date = now;
413
Willy Tarreau29857942009-05-10 09:01:21 +0200414 signal_init();
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200415 init_task();
416 init_session();
Willy Tarreau8280d642009-09-23 23:37:52 +0200417 /* warning, we init buffers later */
Willy Tarreaue4d7e552007-05-13 20:19:55 +0200418 init_pendconn();
Willy Tarreau80587432006-12-24 17:47:20 +0100419 init_proto_http();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200420
Willy Tarreau43b78992009-01-25 15:42:27 +0100421 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200422#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100423 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200424#endif
425#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100426 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200427#endif
Willy Tarreaude99e992007-04-16 00:53:59 +0200428#if defined(ENABLE_SEPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100429 global.tune.options |= GTUNE_USE_SEPOLL;
Willy Tarreaude99e992007-04-16 00:53:59 +0200430#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200431#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +0100432 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200433#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200434#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100435 global.tune.options |= GTUNE_USE_SPLICE;
436#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200437
438 pid = getpid();
439 progname = *argv;
440 while ((tmp = strchr(progname, '/')) != NULL)
441 progname = tmp + 1;
442
443 argc--; argv++;
444 while (argc > 0) {
445 char *flag;
446
447 if (**argv == '-') {
448 flag = *argv+1;
449
450 /* 1 arg */
451 if (*flag == 'v') {
452 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +0100453 if (flag[1] == 'v') /* -vv */
454 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200455 exit(0);
456 }
457#if defined(ENABLE_EPOLL)
458 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +0100459 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200460#endif
Willy Tarreaude99e992007-04-16 00:53:59 +0200461#if defined(ENABLE_SEPOLL)
462 else if (*flag == 'd' && flag[1] == 's')
Willy Tarreau43b78992009-01-25 15:42:27 +0100463 global.tune.options &= ~GTUNE_USE_SEPOLL;
Willy Tarreaude99e992007-04-16 00:53:59 +0200464#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200465#if defined(ENABLE_POLL)
466 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +0100467 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200468#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +0200469#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200470 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +0100471 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200472#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200473#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100474 else if (*flag == 'd' && flag[1] == 'S')
475 global.tune.options &= ~GTUNE_USE_SPLICE;
476#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200477 else if (*flag == 'V')
478 arg_mode |= MODE_VERBOSE;
479 else if (*flag == 'd' && flag[1] == 'b')
480 arg_mode |= MODE_FOREGROUND;
481 else if (*flag == 'd')
482 arg_mode |= MODE_DEBUG;
483 else if (*flag == 'c')
484 arg_mode |= MODE_CHECK;
485 else if (*flag == 'D')
Willy Tarreau6bde87b2009-05-18 16:29:51 +0200486 arg_mode |= MODE_DAEMON;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200487 else if (*flag == 'q')
488 arg_mode |= MODE_QUIET;
489 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
490 /* list of pids to finish ('f') or terminate ('t') */
491
492 if (flag[1] == 'f')
493 oldpids_sig = SIGUSR1; /* finish then exit */
494 else
495 oldpids_sig = SIGTERM; /* terminate immediately */
496 argv++; argc--;
497
498 if (argc > 0) {
499 oldpids = calloc(argc, sizeof(int));
500 while (argc > 0) {
501 oldpids[nb_oldpids] = atol(*argv);
502 if (oldpids[nb_oldpids] <= 0)
503 usage(old_argv);
504 argc--; argv++;
505 nb_oldpids++;
506 }
507 }
508 }
509 else { /* >=2 args */
510 argv++; argc--;
511 if (argc == 0)
512 usage(old_argv);
513
514 switch (*flag) {
515 case 'n' : cfg_maxconn = atol(*argv); break;
516 case 'm' : global.rlimit_memmax = atol(*argv); break;
517 case 'N' : cfg_maxpconn = atol(*argv); break;
Willy Tarreau5d01a632009-06-22 16:02:30 +0200518 case 'f' :
Willy Tarreau477ecd82010-01-03 21:12:30 +0100519 wl = (struct wordlist *)calloc(1, sizeof(*wl));
520 if (!wl) {
521 Alert("Cannot load configuration file %s : out of memory.\n", *argv);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200522 exit(1);
523 }
Willy Tarreau477ecd82010-01-03 21:12:30 +0100524 wl->s = *argv;
525 LIST_ADDQ(&cfg_cfgfiles, &wl->list);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200526 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200527 case 'p' : cfg_pidfile = *argv; break;
528 default: usage(old_argv);
529 }
530 }
531 }
532 else
533 usage(old_argv);
534 argv++; argc--;
535 }
536
537 global.mode = MODE_STARTING | /* during startup, we want most of the alerts */
538 (arg_mode & (MODE_DAEMON | MODE_FOREGROUND | MODE_VERBOSE
539 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
540
Willy Tarreau477ecd82010-01-03 21:12:30 +0100541 if (LIST_ISEMPTY(&cfg_cfgfiles))
Willy Tarreaubaaee002006-06-26 02:48:02 +0200542 usage(old_argv);
543
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100544 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
545 * the string in case of truncation, and at least FreeBSD appears not to do
546 * it.
547 */
548 memset(hostname, 0, sizeof(hostname));
549 gethostname(hostname, sizeof(hostname) - 1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200550
551 have_appsession = 0;
552 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200553
554 init_default_instance();
555
Willy Tarreau477ecd82010-01-03 21:12:30 +0100556 list_for_each_entry(wl, &cfg_cfgfiles, list) {
Willy Tarreauc4382422009-12-06 13:10:44 +0100557 int ret;
558
Willy Tarreau477ecd82010-01-03 21:12:30 +0100559 ret = readcfgfile(wl->s);
Willy Tarreauc4382422009-12-06 13:10:44 +0100560 if (ret == -1) {
561 Alert("Could not open configuration file %s : %s\n",
Willy Tarreau477ecd82010-01-03 21:12:30 +0100562 wl->s, strerror(errno));
Willy Tarreauc4382422009-12-06 13:10:44 +0100563 exit(1);
564 }
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100565 if (ret & (ERR_ABORT|ERR_FATAL))
Willy Tarreau477ecd82010-01-03 21:12:30 +0100566 Alert("Error(s) found in configuration file : %s\n", wl->s);
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100567 err_code |= ret;
Willy Tarreau058e9072009-07-20 09:30:05 +0200568 if (err_code & ERR_ABORT)
Willy Tarreau5d01a632009-06-22 16:02:30 +0200569 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200570 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200571
Willy Tarreaubb925012009-07-23 13:36:36 +0200572 err_code |= check_config_validity();
573 if (err_code & (ERR_ABORT|ERR_FATAL)) {
574 Alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200575 exit(1);
576 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200577
578 if (global.mode & MODE_CHECK) {
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200579 qfprintf(stdout, "Configuration file is valid\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200580 exit(0);
581 }
582
Willy Tarreau8280d642009-09-23 23:37:52 +0200583 /* now we know the buffer size, we can initialize the buffers */
584 init_buffer();
585
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200586 if (have_appsession)
587 appsession_init();
588
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200589 if (start_checks() < 0)
590 exit(1);
591
Willy Tarreaubaaee002006-06-26 02:48:02 +0200592 if (cfg_maxconn > 0)
593 global.maxconn = cfg_maxconn;
594
595 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +0200596 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200597 global.pidfile = strdup(cfg_pidfile);
598 }
599
600 if (global.maxconn == 0)
601 global.maxconn = DEFAULT_MAXCONN;
602
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100603 if (!global.maxpipes) {
604 /* maxpipes not specified. Count how many frontends and backends
605 * may be using splicing, and bound that to maxconn.
606 */
607 struct proxy *cur;
608 int nbfe = 0, nbbe = 0;
609
610 for (cur = proxy; cur; cur = cur->next) {
611 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
612 if (cur->cap & PR_CAP_FE)
613 nbfe += cur->maxconn;
614 if (cur->cap & PR_CAP_BE)
Willy Tarreauafb48762009-01-25 10:42:05 +0100615 nbbe += cur->fullconn ? cur->fullconn : global.maxconn;
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100616 }
617 }
618 global.maxpipes = MAX(nbfe, nbbe);
619 if (global.maxpipes > global.maxconn)
620 global.maxpipes = global.maxconn;
Willy Tarreau686ac822009-01-25 14:06:58 +0100621 global.maxpipes /= 4;
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100622 }
623
624
Willy Tarreaubaaee002006-06-26 02:48:02 +0200625 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +0100626 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200627
Willy Tarreau1db37712007-06-03 17:16:49 +0200628 if (global.tune.maxpollevents <= 0)
629 global.tune.maxpollevents = MAX_POLL_EVENTS;
630
Willy Tarreauf49d1df2009-03-01 08:35:41 +0100631 if (global.tune.maxaccept == 0) {
Willy Tarreaua0250ba2008-01-06 11:22:57 +0100632 if (global.nbproc > 1)
633 global.tune.maxaccept = 8; /* leave some conns to other processes */
634 else
Willy Tarreauf49d1df2009-03-01 08:35:41 +0100635 global.tune.maxaccept = 100; /* accept many incoming conns at once */
Willy Tarreaua0250ba2008-01-06 11:22:57 +0100636 }
637
Willy Tarreau6f4a82c2009-03-21 20:43:57 +0100638 if (global.tune.recv_enough == 0)
639 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
640
Willy Tarreau27a674e2009-08-17 07:23:33 +0200641 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
642 global.tune.maxrewrite = global.tune.bufsize / 2;
643
Willy Tarreaubaaee002006-06-26 02:48:02 +0200644 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
645 /* command line debug mode inhibits configuration mode */
646 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
647 }
648 global.mode |= (arg_mode & (MODE_DAEMON | MODE_FOREGROUND | MODE_QUIET |
Willy Tarreaufbee7132007-10-18 13:53:22 +0200649 MODE_VERBOSE | MODE_DEBUG ));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200650
651 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_QUIET))) {
652 Warning("<debug> mode incompatible with <quiet> and <daemon>. Keeping <debug> only.\n");
653 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
654 }
655
656 if ((global.nbproc > 1) && !(global.mode & MODE_DAEMON)) {
657 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
658 Warning("<nbproc> is only meaningful in daemon mode. Setting limit to 1 process.\n");
659 global.nbproc = 1;
660 }
661
662 if (global.nbproc < 1)
663 global.nbproc = 1;
664
Willy Tarreau8096de92010-02-26 11:12:27 +0100665 swap_buffer = (char *)calloc(1, global.tune.bufsize);
666
Willy Tarreau8d5d77e2009-10-18 07:25:52 +0200667 fdinfo = (struct fdinfo *)calloc(1,
668 sizeof(struct fdinfo) * (global.maxsock));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200669 fdtab = (struct fdtab *)calloc(1,
670 sizeof(struct fdtab) * (global.maxsock));
671 for (i = 0; i < global.maxsock; i++) {
672 fdtab[i].state = FD_STCLOSE;
673 }
Willy Tarreau4f60f162007-04-08 16:39:58 +0200674
Willy Tarreauef1d1f82007-04-16 00:25:25 +0200675 /*
676 * Note: we could register external pollers here.
677 * Built-in pollers have been registered before main().
678 */
Willy Tarreau4f60f162007-04-08 16:39:58 +0200679
Willy Tarreau43b78992009-01-25 15:42:27 +0100680 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200681 disable_poller("kqueue");
682
Willy Tarreau43b78992009-01-25 15:42:27 +0100683 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +0200684 disable_poller("epoll");
685
Willy Tarreau43b78992009-01-25 15:42:27 +0100686 if (!(global.tune.options & GTUNE_USE_SEPOLL))
Willy Tarreaude99e992007-04-16 00:53:59 +0200687 disable_poller("sepoll");
688
Willy Tarreau43b78992009-01-25 15:42:27 +0100689 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +0200690 disable_poller("poll");
691
Willy Tarreau43b78992009-01-25 15:42:27 +0100692 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +0200693 disable_poller("select");
694
695 /* Note: we could disable any poller by name here */
696
Willy Tarreau2ff76222007-04-09 19:29:56 +0200697 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
698 list_pollers(stderr);
699
Willy Tarreau4f60f162007-04-08 16:39:58 +0200700 if (!init_pollers()) {
Willy Tarreau2ff76222007-04-09 19:29:56 +0200701 Alert("No polling mechanism available.\n");
Willy Tarreau4f60f162007-04-08 16:39:58 +0200702 exit(1);
703 }
Willy Tarreau2ff76222007-04-09 19:29:56 +0200704 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
705 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +0200706 }
707
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +0200708 if (!global.node)
709 global.node = strdup(hostname);
710
Willy Tarreaubaaee002006-06-26 02:48:02 +0200711}
712
713void deinit(void)
714{
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200715 struct proxy *p = proxy, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200716 struct cap_hdr *h,*h_next;
717 struct server *s,*s_next;
718 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200719 struct acl_cond *cond, *condb;
720 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200721 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200722 struct switching_rule *rule, *ruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200723 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +0100724 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +0100725 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200726 struct uri_auth *uap, *ua = NULL;
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200727 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200728
Willy Tarreaubaaee002006-06-26 02:48:02 +0200729 while (p) {
Willy Tarreaua534fea2008-08-03 12:19:50 +0200730 free(p->id);
731 free(p->check_req);
732 free(p->cookie_name);
733 free(p->cookie_domain);
734 free(p->url_param_name);
735 free(p->capture_name);
736 free(p->monitor_uri);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200737
Willy Tarreaua534fea2008-08-03 12:19:50 +0200738 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +0200739 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200740
Willy Tarreauf4f04122010-01-28 18:10:50 +0100741 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
742 LIST_DEL(&cwl->list);
743 free(cwl->s);
744 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +0100745 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200746
Willy Tarreauf4f04122010-01-28 18:10:50 +0100747 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
748 LIST_DEL(&cwl->list);
749 free(cwl->s);
750 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +0100751 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200752
753 list_for_each_entry_safe(cond, condb, &p->block_cond, list) {
754 LIST_DEL(&cond->list);
755 prune_acl_cond(cond);
756 free(cond);
757 }
758
Willy Tarreaub80c2302007-11-30 20:51:32 +0100759 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
760 LIST_DEL(&cond->list);
761 prune_acl_cond(cond);
762 free(cond);
763 }
764
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200765 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200766 if (exp->preg) {
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200767 regfree((regex_t *)exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200768 free((regex_t *)exp->preg);
769 }
770
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200771 if (exp->replace && exp->action != ACT_SETBE)
772 free((char *)exp->replace);
773 expb = exp;
774 exp = exp->next;
775 free(expb);
776 }
777
778 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200779 if (exp->preg) {
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200780 regfree((regex_t *)exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200781 free((regex_t *)exp->preg);
782 }
783
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200784 if (exp->replace && exp->action != ACT_SETBE)
785 free((char *)exp->replace);
786 expb = exp;
787 exp = exp->next;
788 free(expb);
789 }
790
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200791 /* build a list of unique uri_auths */
792 if (!ua)
793 ua = p->uri_auth;
794 else {
795 /* check if p->uri_auth is unique */
796 for (uap = ua; uap; uap=uap->next)
797 if (uap == p->uri_auth)
798 break;
799
Willy Tarreauaccc4e12008-06-24 11:14:45 +0200800 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200801 /* add it, if it is */
802 p->uri_auth->next = ua;
803 ua = p->uri_auth;
804 }
805 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200806
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200807 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
808 LIST_DEL(&acl->list);
809 prune_acl(acl);
810 free(acl);
811 }
812
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200813 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
814 LIST_DEL(&rule->list);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200815 prune_acl_cond(rule->cond);
816 free(rule->cond);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200817 free(rule);
818 }
819
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200820 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
821 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +0100822 if (rdr->cond) {
823 prune_acl_cond(rdr->cond);
824 free(rdr->cond);
825 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200826 free(rdr->rdr_str);
827 free(rdr);
828 }
829
Willy Tarreaua534fea2008-08-03 12:19:50 +0200830 free(p->appsession_name);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200831
832 h = p->req_cap;
833 while (h) {
834 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +0200835 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +0200836 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200837 free(h);
838 h = h_next;
839 }/* end while(h) */
840
841 h = p->rsp_cap;
842 while (h) {
843 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +0200844 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +0200845 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200846 free(h);
847 h = h_next;
848 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200849
Willy Tarreaubaaee002006-06-26 02:48:02 +0200850 s = p->srv;
851 while (s) {
852 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200853
854 if (s->check) {
855 task_delete(s->check);
856 task_free(s->check);
857 }
858
Willy Tarreaua534fea2008-08-03 12:19:50 +0200859 free(s->id);
860 free(s->cookie);
Nick Chalk57b1bf72010-03-16 15:50:46 +0000861 free(s->check_data);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200862 free(s);
863 s = s_next;
864 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200865
Willy Tarreaubaaee002006-06-26 02:48:02 +0200866 l = p->listen;
867 while (l) {
868 l_next = l->next;
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +0100869 free(l->name);
870 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200871 free(l);
872 l = l_next;
873 }/* end while(l) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200874
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +0100875 free(p->desc);
876 free(p->fwdfor_hdr_name);
877
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +0100878 req_acl_free(&p->req_acl);
879
Willy Tarreaucf7f3202007-05-13 22:46:04 +0200880 pool_destroy2(p->req_cap_pool);
881 pool_destroy2(p->rsp_cap_pool);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200882 pool_destroy2(p->hdr_idx_pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100883
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200884 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200885 p = p->next;
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200886 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200887 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +0200888
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200889 while (ua) {
890 uap = ua;
891 ua = ua->next;
892
Willy Tarreaua534fea2008-08-03 12:19:50 +0200893 free(uap->uri_prefix);
894 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +0200895 free(uap->node);
896 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200897
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100898 userlist_free(uap->userlist);
899 req_acl_free(&uap->req_acl);
900
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200901 free(uap);
902 }
903
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100904 userlist_free(userlist);
905
Willy Tarreaudd815982007-10-16 12:25:14 +0200906 protocol_unbind_all();
907
Willy Tarreaua534fea2008-08-03 12:19:50 +0200908 free(global.chroot); global.chroot = NULL;
909 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +0200910 free(global.node); global.node = NULL;
911 free(global.desc); global.desc = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +0200912 free(fdtab); fdtab = NULL;
913 free(oldpids); oldpids = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200914
Willy Tarreau477ecd82010-01-03 21:12:30 +0100915 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
916 LIST_DEL(&wl->list);
917 free(wl);
918 }
919
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200920 pool_destroy2(pool2_session);
Willy Tarreau7341d942007-05-13 19:56:02 +0200921 pool_destroy2(pool2_buffer);
Willy Tarreau332f8bf2007-05-13 21:36:56 +0200922 pool_destroy2(pool2_requri);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200923 pool_destroy2(pool2_task);
Willy Tarreau086b3b42007-05-13 21:45:51 +0200924 pool_destroy2(pool2_capture);
Willy Tarreau63963c62007-05-13 21:29:55 +0200925 pool_destroy2(pool2_appsess);
Willy Tarreaue4d7e552007-05-13 20:19:55 +0200926 pool_destroy2(pool2_pendconn);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200927
928 if (have_appsession) {
Willy Tarreau63963c62007-05-13 21:29:55 +0200929 pool_destroy2(apools.serverid);
930 pool_destroy2(apools.sessid);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200931 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200932
933 deinit_pollers();
934
Willy Tarreaubaaee002006-06-26 02:48:02 +0200935} /* end deinit() */
936
937/* sends the signal <sig> to all pids found in <oldpids> */
938static void tell_old_pids(int sig)
939{
940 int p;
941 for (p = 0; p < nb_oldpids; p++)
942 kill(oldpids[p], sig);
943}
944
Willy Tarreau4f60f162007-04-08 16:39:58 +0200945/*
946 * Runs the polling loop
947 *
948 * FIXME:
949 * - we still use 'listeners' to check whether we want to stop or not.
950 *
951 */
952void run_poll_loop()
953{
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200954 int next;
Willy Tarreau4f60f162007-04-08 16:39:58 +0200955
Willy Tarreaub0b37bc2008-06-23 14:00:57 +0200956 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +0200957 while (1) {
Willy Tarreau29857942009-05-10 09:01:21 +0200958 /* check if we caught some signals and process them */
959 signal_process_queue();
960
Willy Tarreau58b458d2008-06-29 22:40:23 +0200961 /* Check if we can expire some tasks */
962 wake_expired_tasks(&next);
963
964 /* Process a few tasks */
Willy Tarreaud825eef2007-05-12 22:35:00 +0200965 process_runnable_tasks(&next);
Willy Tarreau4f60f162007-04-08 16:39:58 +0200966
Willy Tarreau58b458d2008-06-29 22:40:23 +0200967 /* maintain all proxies in a consistent state. This should quickly
968 * become a task because it becomes expensive when there are huge
969 * numbers of proxies. */
970 maintain_proxies(&next);
971
Willy Tarreau4f60f162007-04-08 16:39:58 +0200972 /* stop when there's no connection left and we don't allow them anymore */
973 if (!actconn && listeners == 0)
974 break;
975
Willy Tarreau58b458d2008-06-29 22:40:23 +0200976 /* The poller will ensure it returns around <next> */
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200977 cur_poller.poll(&cur_poller, next);
Willy Tarreau4f60f162007-04-08 16:39:58 +0200978 }
979}
980
981
Willy Tarreaubaaee002006-06-26 02:48:02 +0200982int main(int argc, char **argv)
983{
984 int err, retry;
985 struct rlimit limit;
986 FILE *pidfile = NULL;
987 init(argc, argv);
988
Willy Tarreau01b3a532009-05-10 09:59:50 +0200989 signal_register(SIGQUIT, dump);
990 signal_register(SIGUSR1, sig_soft_stop);
991 signal_register(SIGHUP, sig_dump_state);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200992#ifdef DEBUG_MEMORY
Willy Tarreau01b3a532009-05-10 09:59:50 +0200993 signal_register(SIGINT, sig_int);
994 signal_register(SIGTERM, sig_term);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200995#endif
996
Willy Tarreaue437c442010-03-17 18:02:46 +0100997 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
998 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
999 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02001000 */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001001 signal(SIGPIPE, SIG_IGN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001002
1003 /* We will loop at most 100 times with 10 ms delay each time.
1004 * That's at most 1 second. We only send a signal to old pids
1005 * if we cannot grab at least one port.
1006 */
1007 retry = MAX_START_RETRIES;
1008 err = ERR_NONE;
1009 while (retry >= 0) {
1010 struct timeval w;
1011 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01001012 /* exit the loop on no error or fatal error */
1013 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001014 break;
1015 if (nb_oldpids == 0)
1016 break;
1017
1018 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
1019 * listening sockets. So on those platforms, it would be wiser to
1020 * simply send SIGUSR1, which will not be undoable.
1021 */
1022 tell_old_pids(SIGTTOU);
1023 /* give some time to old processes to stop listening */
1024 w.tv_sec = 0;
1025 w.tv_usec = 10*1000;
1026 select(0, NULL, NULL, NULL, &w);
1027 retry--;
1028 }
1029
1030 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01001031 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02001032 if (retry != MAX_START_RETRIES && nb_oldpids) {
1033 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001034 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02001035 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001036 exit(1);
1037 }
1038
1039 if (listeners == 0) {
1040 Alert("[%s.main()] No enabled listener found (check the <listen> keywords) ! Exiting.\n", argv[0]);
1041 /* Note: we don't have to send anything to the old pids because we
1042 * never stopped them. */
1043 exit(1);
1044 }
1045
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01001046 if ((protocol_bind_all() & ~ERR_WARN) != ERR_NONE) {
Willy Tarreaudd815982007-10-16 12:25:14 +02001047 Alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
1048 protocol_unbind_all(); /* cleanup everything we can */
1049 if (nb_oldpids)
1050 tell_old_pids(SIGTTIN);
1051 exit(1);
1052 }
1053
Willy Tarreaubaaee002006-06-26 02:48:02 +02001054 /* prepare pause/play signals */
Willy Tarreau01b3a532009-05-10 09:59:50 +02001055 signal_register(SIGTTOU, sig_pause);
1056 signal_register(SIGTTIN, sig_listen);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001057
Willy Tarreaubaaee002006-06-26 02:48:02 +02001058 /* MODE_QUIET can inhibit alerts and warnings below this line */
1059
1060 global.mode &= ~MODE_STARTING;
1061 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
1062 /* detach from the tty */
1063 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001064 }
1065
1066 /* open log & pid files before the chroot */
1067 if (global.mode & MODE_DAEMON && global.pidfile != NULL) {
1068 int pidfd;
1069 unlink(global.pidfile);
1070 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
1071 if (pidfd < 0) {
1072 Alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
1073 if (nb_oldpids)
1074 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001075 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001076 exit(1);
1077 }
1078 pidfile = fdopen(pidfd, "w");
1079 }
1080
Willy Tarreaubaaee002006-06-26 02:48:02 +02001081 /* ulimits */
1082 if (!global.rlimit_nofile)
1083 global.rlimit_nofile = global.maxsock;
1084
1085 if (global.rlimit_nofile) {
1086 limit.rlim_cur = limit.rlim_max = global.rlimit_nofile;
1087 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
1088 Warning("[%s.main()] Cannot raise FD limit to %d.\n", argv[0], global.rlimit_nofile);
1089 }
1090 }
1091
1092 if (global.rlimit_memmax) {
1093 limit.rlim_cur = limit.rlim_max =
1094 global.rlimit_memmax * 1048576 / global.nbproc;
1095#ifdef RLIMIT_AS
1096 if (setrlimit(RLIMIT_AS, &limit) == -1) {
1097 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1098 argv[0], global.rlimit_memmax);
1099 }
1100#else
1101 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
1102 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1103 argv[0], global.rlimit_memmax);
1104 }
1105#endif
1106 }
Willy Tarreau6d1a9882007-01-07 02:03:04 +01001107
Willy Tarreaub38651a2007-03-24 17:24:39 +01001108#ifdef CONFIG_HAP_CTTPROXY
1109 if (global.last_checks & LSTCHK_CTTPROXY) {
1110 int ret;
1111
1112 ret = check_cttproxy_version();
1113 if (ret < 0) {
1114 Alert("[%s.main()] Cannot enable cttproxy.\n%s",
1115 argv[0],
1116 (ret == -1) ? " Incorrect module version.\n"
1117 : " Make sure you have enough permissions and that the module is loaded.\n");
Willy Tarreaudd815982007-10-16 12:25:14 +02001118 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01001119 exit(1);
1120 }
1121 }
1122#endif
1123
1124 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
1125 Alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001126 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001127 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01001128 exit(1);
1129 }
1130
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001131 /* If the user is not root, we'll still let him try the configuration
1132 * but we inform him that unexpected behaviour may occur.
1133 */
1134 if ((global.last_checks & LSTCHK_NETADM) && getuid())
1135 Warning("[%s.main()] Some options which require full privileges"
1136 " might not work well.\n"
1137 "", argv[0]);
1138
Willy Tarreauf223cc02007-10-15 18:57:08 +02001139 /* chroot if needed */
1140 if (global.chroot != NULL) {
1141 if (chroot(global.chroot) == -1) {
1142 Alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
1143 if (nb_oldpids)
1144 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001145 protocol_unbind_all();
Willy Tarreauf223cc02007-10-15 18:57:08 +02001146 exit(1);
1147 }
1148 chdir("/");
1149 }
1150
Willy Tarreaubaaee002006-06-26 02:48:02 +02001151 if (nb_oldpids)
1152 tell_old_pids(oldpids_sig);
1153
1154 /* Note that any error at this stage will be fatal because we will not
1155 * be able to restart the old pids.
1156 */
1157
1158 /* setgid / setuid */
1159 if (global.gid && setgid(global.gid) == -1) {
1160 Alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
Willy Tarreaudd815982007-10-16 12:25:14 +02001161 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001162 exit(1);
1163 }
1164
1165 if (global.uid && setuid(global.uid) == -1) {
1166 Alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Willy Tarreaudd815982007-10-16 12:25:14 +02001167 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001168 exit(1);
1169 }
1170
1171 /* check ulimits */
1172 limit.rlim_cur = limit.rlim_max = 0;
1173 getrlimit(RLIMIT_NOFILE, &limit);
1174 if (limit.rlim_cur < global.maxsock) {
1175 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",
Willy Tarreau1772ece2009-04-03 14:49:12 +02001176 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001177 }
1178
1179 if (global.mode & MODE_DAEMON) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001180 struct proxy *px;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001181 int ret = 0;
1182 int proc;
1183
1184 /* the father launches the required number of processes */
1185 for (proc = 0; proc < global.nbproc; proc++) {
1186 ret = fork();
1187 if (ret < 0) {
1188 Alert("[%s.main()] Cannot fork.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001189 protocol_unbind_all();
Willy Tarreaud6803712007-10-16 07:44:56 +02001190 exit(1); /* there has been an error */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001191 }
1192 else if (ret == 0) /* child breaks here */
1193 break;
1194 if (pidfile != NULL) {
1195 fprintf(pidfile, "%d\n", ret);
1196 fflush(pidfile);
1197 }
Willy Tarreaudcd47712007-11-04 23:35:08 +01001198 relative_pid++; /* each child will get a different one */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001199 }
1200 /* close the pidfile both in children and father */
1201 if (pidfile != NULL)
1202 fclose(pidfile);
1203 free(global.pidfile);
Krzysztof Oledzki56f1e8b2007-10-11 18:30:14 +02001204 global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001205
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001206 /* we might have to unbind some proxies from some processes */
1207 px = proxy;
1208 while (px != NULL) {
1209 if (px->bind_proc && px->state != PR_STSTOPPED) {
1210 if (!(px->bind_proc & (1 << proc)))
1211 stop_proxy(px);
1212 }
1213 px = px->next;
1214 }
1215
Willy Tarreaubaaee002006-06-26 02:48:02 +02001216 if (proc == global.nbproc)
1217 exit(0); /* parent must leave */
1218
1219 /* if we're NOT in QUIET mode, we should now close the 3 first FDs to ensure
1220 * that we can detach from the TTY. We MUST NOT do it in other cases since
1221 * it would have already be done, and 0-2 would have been affected to listening
1222 * sockets
1223 */
Willy Tarreau106cb762008-11-16 07:40:34 +01001224 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001225 /* detach from the tty */
1226 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreau106cb762008-11-16 07:40:34 +01001227 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001228 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
1229 }
1230 pid = getpid(); /* update child's pid */
1231 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02001232 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001233 }
1234
Willy Tarreaudd815982007-10-16 12:25:14 +02001235 protocol_enable_all();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001236 /*
1237 * That's it : the central polling loop. Run until we stop.
1238 */
1239 run_poll_loop();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001240
1241 /* Free all Hash Keys and all Hash elements */
1242 appsession_cleanup();
1243 /* Do some cleanup */
1244 deinit();
1245
1246 exit(0);
1247}
1248
1249
1250/*
1251 * Local variables:
1252 * c-indent-level: 8
1253 * c-basic-offset: 8
1254 * End:
1255 */