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Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
2 * HA-Proxy : High Availability-enabled HTTP/TCP proxy
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01003 * Copyright 2000-2011 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>
Simon Hormanac821422011-07-15 13:14:09 +090069#include <types/proto_tcp.h>
70#include <types/acl.h>
Willy Tarreau3c63fd82011-09-07 18:00:47 +020071#include <types/peers.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020072
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +010073#include <proto/auth.h>
Willy Tarreau0fc45a72007-06-17 00:36:03 +020074#include <proto/acl.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020075#include <proto/backend.h>
76#include <proto/buffers.h>
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +020077#include <proto/checks.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020078#include <proto/fd.h>
Willy Tarreau34eb6712011-10-24 18:15:04 +020079#include <proto/hdr_idx.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020080#include <proto/log.h>
Willy Tarreaudd815982007-10-16 12:25:14 +020081#include <proto/protocols.h>
Willy Tarreau80587432006-12-24 17:47:20 +010082#include <proto/proto_http.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020083#include <proto/proxy.h>
84#include <proto/queue.h>
85#include <proto/server.h>
Willy Tarreauc6ca1a02007-05-13 19:43:47 +020086#include <proto/session.h>
Willy Tarreau29857942009-05-10 09:01:21 +020087#include <proto/signal.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020088#include <proto/stream_sock.h>
89#include <proto/task.h>
90
Willy Tarreaub38651a2007-03-24 17:24:39 +010091#ifdef CONFIG_HAP_CTTPROXY
92#include <proto/cttproxy.h>
93#endif
94
Willy Tarreaubaaee002006-06-26 02:48:02 +020095/*********************************************************************/
96
97/*********************************************************************/
98
Willy Tarreau477ecd82010-01-03 21:12:30 +010099/* list of config files */
100static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200101int pid; /* current process id */
Willy Tarreau28156642007-11-26 16:13:36 +0100102int relative_pid = 1; /* process id starting at 1 */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200103
104/* global options */
105struct global global = {
William Lallemand5f232402012-04-05 18:02:55 +0200106 .req_count = 0,
William Lallemand0f99e342011-10-12 17:50:54 +0200107 .logsrvs = LIST_HEAD_INIT(global.logsrvs),
Willy Tarreau03f6d672007-10-18 15:15:57 +0200108 .stats_sock = {
Willy Tarreau03f6d672007-10-18 15:15:57 +0200109 .perm = {
110 .ux = {
111 .uid = -1,
112 .gid = -1,
113 .mode = 0,
114 }
115 }
Willy Tarreau27a674e2009-08-17 07:23:33 +0200116 },
Emeric Bruned760922010-10-22 17:59:25 +0200117 .unix_bind = {
118 .ux = {
119 .uid = -1,
120 .gid = -1,
121 .mode = 0,
122 }
123 },
Willy Tarreau27a674e2009-08-17 07:23:33 +0200124 .tune = {
125 .bufsize = BUFSIZE,
126 .maxrewrite = MAXREWRITE,
Willy Tarreau43961d52010-10-04 20:39:20 +0200127 .chksize = BUFSIZE,
Willy Tarreau27a674e2009-08-17 07:23:33 +0200128 },
Willy Tarreaubaaee002006-06-26 02:48:02 +0200129 /* others NULL OK */
130};
131
132/*********************************************************************/
133
134int stopping; /* non zero means stopping in progress */
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200135int jobs = 0; /* number of active jobs (conns, listeners, active tasks, ...) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200136
137/* Here we store informations about the pids of the processes we may pause
138 * or kill. We will send them a signal every 10 ms until we can bind to all
139 * our ports. With 200 retries, that's about 2 seconds.
140 */
141#define MAX_START_RETRIES 200
Willy Tarreaubaaee002006-06-26 02:48:02 +0200142static int *oldpids = NULL;
143static int oldpids_sig; /* use USR1 or TERM */
144
145/* this is used to drain data, and as a temporary buffer for sprintf()... */
146char trash[BUFSIZE];
147
Willy Tarreau8096de92010-02-26 11:12:27 +0100148/* this buffer is always the same size as standard buffers and is used for
149 * swapping data inside a buffer.
150 */
151char *swap_buffer = NULL;
152
Willy Tarreaubb545b42010-08-25 12:58:59 +0200153int nb_oldpids = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200154const int zero = 0;
155const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200156const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200157
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100158char hostname[MAX_HOSTNAME_LEN];
Emeric Brun2b920a12010-09-23 18:30:22 +0200159char localpeer[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200160
Willy Tarreau08ceb102011-07-24 22:58:00 +0200161/* list of the temporarily limited listeners because of lack of resource */
162struct list global_listener_queue = LIST_HEAD_INIT(global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +0200163struct task *global_listener_queue_task;
164static struct task *manage_global_listener_queue(struct task *t);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200165
166/*********************************************************************/
167/* general purpose functions ***************************************/
168/*********************************************************************/
169
170void display_version()
171{
172 printf("HA-Proxy version " HAPROXY_VERSION " " HAPROXY_DATE"\n");
Willy Tarreau9eeb57b2012-03-26 06:15:29 +0200173 printf("Copyright 2000-2012 Willy Tarreau <w@1wt.eu>\n\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200174}
175
Willy Tarreau7b066db2007-12-02 11:28:59 +0100176void display_build_opts()
177{
178 printf("Build options :"
179#ifdef BUILD_TARGET
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100180 "\n TARGET = " BUILD_TARGET
Willy Tarreau7b066db2007-12-02 11:28:59 +0100181#endif
182#ifdef BUILD_CPU
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100183 "\n CPU = " BUILD_CPU
Willy Tarreau7b066db2007-12-02 11:28:59 +0100184#endif
185#ifdef BUILD_CC
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100186 "\n CC = " BUILD_CC
187#endif
188#ifdef BUILD_CFLAGS
189 "\n CFLAGS = " BUILD_CFLAGS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100190#endif
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100191#ifdef BUILD_OPTIONS
192 "\n OPTIONS = " BUILD_OPTIONS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100193#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200194 "\n\nDefault settings :"
195 "\n maxconn = %d, bufsize = %d, maxrewrite = %d, maxpollevents = %d"
196 "\n\n",
197 DEFAULT_MAXCONN, BUFSIZE, MAXREWRITE, MAX_POLL_EVENTS);
Willy Tarreaube5b6852009-10-03 18:57:08 +0200198
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100199 printf("Encrypted password support via crypt(3): "
200#ifdef CONFIG_HAP_CRYPT
201 "yes"
202#else
203 "no"
204#endif
205 "\n");
206
207 putchar('\n');
208
Willy Tarreaube5b6852009-10-03 18:57:08 +0200209 list_pollers(stdout);
210 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100211}
212
Willy Tarreaubaaee002006-06-26 02:48:02 +0200213/*
214 * This function prints the command line usage and exits
215 */
216void usage(char *name)
217{
218 display_version();
219 fprintf(stderr,
Willy Tarreau5d01a632009-06-22 16:02:30 +0200220 "Usage : %s [-f <cfgfile>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200221 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200222 " [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100223 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200224 " -d enters debug mode ; -db only disables background mode.\n"
225 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200226 " -D goes daemon ; -C changes to <dir> before loading files.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200227 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200228 " -c check mode : only check config files and exit\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200229 " -n sets the maximum total # of connections (%d)\n"
230 " -m limits the usable amount of memory (in MB)\n"
231 " -N sets the default, per-proxy maximum # of connections (%d)\n"
Emeric Brun2b920a12010-09-23 18:30:22 +0200232 " -L set local peer name (default to hostname)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200233 " -p writes pids of all children to this file\n"
234#if defined(ENABLE_EPOLL)
235 " -de disables epoll() usage even when available\n"
236#endif
Willy Tarreaude99e992007-04-16 00:53:59 +0200237#if defined(ENABLE_SEPOLL)
238 " -ds disables speculative epoll() usage even when available\n"
239#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200240#if defined(ENABLE_KQUEUE)
241 " -dk disables kqueue() usage even when available\n"
242#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200243#if defined(ENABLE_POLL)
244 " -dp disables poll() usage even when available\n"
245#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200246#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100247 " -dS disables splice usage (broken on old kernels)\n"
248#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200249 " -sf/-st [pid ]* finishes/terminates old pids. Must be last arguments.\n"
250 "\n",
251 name, DEFAULT_MAXCONN, cfg_maxpconn);
252 exit(1);
253}
254
255
256
257/*********************************************************************/
258/* more specific functions ***************************************/
259/*********************************************************************/
260
261/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200262 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
263 * a signal zero to all subscribers. This means that it's as easy as
264 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200265 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200266void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200267{
268 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200269 signal_unregister_handler(sh);
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200270 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200271}
272
273/*
274 * upon SIGTTOU, we pause everything
275 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200276void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200277{
278 pause_proxies();
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200279 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200280}
281
282/*
283 * upon SIGTTIN, let's have a soft stop.
284 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200285void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200286{
Willy Tarreaube58c382011-07-24 18:28:10 +0200287 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200288}
289
290/*
291 * this function dumps every server's state when the process receives SIGHUP.
292 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200293void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200294{
295 struct proxy *p = proxy;
296
297 Warning("SIGHUP received, dumping servers states.\n");
298 while (p) {
299 struct server *s = p->srv;
300
301 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
302 while (s) {
303 snprintf(trash, sizeof(trash),
Willy Tarreau3b88d442009-04-11 20:44:08 +0200304 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
Willy Tarreaubaaee002006-06-26 02:48:02 +0200305 p->id, s->id,
306 (s->state & SRV_RUNNING) ? "UP" : "DOWN",
Krzysztof Piotr Oledzki052d4fd2009-10-04 14:52:57 +0200307 s->cur_sess, s->nbpend, s->counters.cum_sess);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200308 Warning("%s\n", trash);
309 send_log(p, LOG_NOTICE, "%s\n", trash);
310 s = s->next;
311 }
312
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200313 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
314 if (!p->srv) {
315 snprintf(trash, sizeof(trash),
Willy Tarreau3b88d442009-04-11 20:44:08 +0200316 "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 +0200317 p->id,
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100318 p->feconn, p->beconn, p->totpend, p->nbpend, p->fe_counters.cum_conn, p->be_counters.cum_conn);
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200319 } else if (p->srv_act == 0) {
Willy Tarreaubaaee002006-06-26 02:48:02 +0200320 snprintf(trash, sizeof(trash),
Willy Tarreau3b88d442009-04-11 20:44:08 +0200321 "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 +0200322 p->id,
323 (p->srv_bck) ? "is running on backup servers" : "has no server available",
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100324 p->feconn, p->beconn, p->totpend, p->nbpend, p->fe_counters.cum_conn, p->be_counters.cum_conn);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200325 } else {
326 snprintf(trash, sizeof(trash),
327 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
Willy Tarreau3b88d442009-04-11 20:44:08 +0200328 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
Willy Tarreaubaaee002006-06-26 02:48:02 +0200329 p->id, p->srv_act, p->srv_bck,
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100330 p->feconn, p->beconn, p->totpend, p->nbpend, p->fe_counters.cum_conn, p->be_counters.cum_conn);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200331 }
332 Warning("%s\n", trash);
333 send_log(p, LOG_NOTICE, "%s\n", trash);
334
335 p = p->next;
336 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200337}
338
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200339void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200340{
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
Willy Tarreaubaaee002006-06-26 02:48:02 +0200346/*
347 * This function initializes all the necessary variables. It only returns
348 * if everything is OK. If something fails, it exits.
349 */
350void init(int argc, char **argv)
351{
352 int i;
353 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200354 char *tmp;
355 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +0200356 int err_code = 0;
Willy Tarreau477ecd82010-01-03 21:12:30 +0100357 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +0000358 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +0200359 char *change_dir = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200360
Emeric Brun2b920a12010-09-23 18:30:22 +0200361 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
362 * the string in case of truncation, and at least FreeBSD appears not to do
363 * it.
364 */
365 memset(hostname, 0, sizeof(hostname));
366 gethostname(hostname, sizeof(hostname) - 1);
367 memset(localpeer, 0, sizeof(localpeer));
368 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
369
Willy Tarreaubaaee002006-06-26 02:48:02 +0200370 /*
371 * Initialize the previously static variables.
372 */
373
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100374 totalconn = actconn = maxfd = listeners = stopping = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200375
376
377#ifdef HAPROXY_MEMMAX
378 global.rlimit_memmax = HAPROXY_MEMMAX;
379#endif
380
Willy Tarreaub0b37bc2008-06-23 14:00:57 +0200381 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200382 start_date = now;
383
Willy Tarreau29857942009-05-10 09:01:21 +0200384 signal_init();
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200385 init_task();
386 init_session();
Willy Tarreau8280d642009-09-23 23:37:52 +0200387 /* warning, we init buffers later */
Willy Tarreaue4d7e552007-05-13 20:19:55 +0200388 init_pendconn();
Willy Tarreau80587432006-12-24 17:47:20 +0100389 init_proto_http();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200390
Willy Tarreau43b78992009-01-25 15:42:27 +0100391 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200392#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100393 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200394#endif
395#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100396 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200397#endif
Willy Tarreaude99e992007-04-16 00:53:59 +0200398#if defined(ENABLE_SEPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100399 global.tune.options |= GTUNE_USE_SEPOLL;
Willy Tarreaude99e992007-04-16 00:53:59 +0200400#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200401#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +0100402 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200403#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200404#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100405 global.tune.options |= GTUNE_USE_SPLICE;
406#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200407
408 pid = getpid();
409 progname = *argv;
410 while ((tmp = strchr(progname, '/')) != NULL)
411 progname = tmp + 1;
412
Kevinm48936af2010-12-22 16:08:21 +0000413 /* the process name is used for the logs only */
414 global.log_tag = strdup(progname);
415
Willy Tarreaubaaee002006-06-26 02:48:02 +0200416 argc--; argv++;
417 while (argc > 0) {
418 char *flag;
419
420 if (**argv == '-') {
421 flag = *argv+1;
422
423 /* 1 arg */
424 if (*flag == 'v') {
425 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +0100426 if (flag[1] == 'v') /* -vv */
427 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200428 exit(0);
429 }
430#if defined(ENABLE_EPOLL)
431 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +0100432 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200433#endif
Willy Tarreaude99e992007-04-16 00:53:59 +0200434#if defined(ENABLE_SEPOLL)
435 else if (*flag == 'd' && flag[1] == 's')
Willy Tarreau43b78992009-01-25 15:42:27 +0100436 global.tune.options &= ~GTUNE_USE_SEPOLL;
Willy Tarreaude99e992007-04-16 00:53:59 +0200437#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200438#if defined(ENABLE_POLL)
439 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +0100440 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200441#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +0200442#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200443 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +0100444 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200445#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200446#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100447 else if (*flag == 'd' && flag[1] == 'S')
448 global.tune.options &= ~GTUNE_USE_SPLICE;
449#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200450 else if (*flag == 'V')
451 arg_mode |= MODE_VERBOSE;
452 else if (*flag == 'd' && flag[1] == 'b')
453 arg_mode |= MODE_FOREGROUND;
454 else if (*flag == 'd')
455 arg_mode |= MODE_DEBUG;
456 else if (*flag == 'c')
457 arg_mode |= MODE_CHECK;
458 else if (*flag == 'D')
Willy Tarreau6bde87b2009-05-18 16:29:51 +0200459 arg_mode |= MODE_DAEMON;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200460 else if (*flag == 'q')
461 arg_mode |= MODE_QUIET;
462 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
463 /* list of pids to finish ('f') or terminate ('t') */
464
465 if (flag[1] == 'f')
466 oldpids_sig = SIGUSR1; /* finish then exit */
467 else
468 oldpids_sig = SIGTERM; /* terminate immediately */
469 argv++; argc--;
470
471 if (argc > 0) {
472 oldpids = calloc(argc, sizeof(int));
473 while (argc > 0) {
474 oldpids[nb_oldpids] = atol(*argv);
475 if (oldpids[nb_oldpids] <= 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200476 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200477 argc--; argv++;
478 nb_oldpids++;
479 }
480 }
481 }
482 else { /* >=2 args */
483 argv++; argc--;
484 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200485 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200486
487 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +0200488 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200489 case 'n' : cfg_maxconn = atol(*argv); break;
490 case 'm' : global.rlimit_memmax = atol(*argv); break;
491 case 'N' : cfg_maxpconn = atol(*argv); break;
Emeric Brun2b920a12010-09-23 18:30:22 +0200492 case 'L' : strncpy(localpeer, *argv, sizeof(localpeer) - 1); break;
Willy Tarreau5d01a632009-06-22 16:02:30 +0200493 case 'f' :
Willy Tarreau477ecd82010-01-03 21:12:30 +0100494 wl = (struct wordlist *)calloc(1, sizeof(*wl));
495 if (!wl) {
496 Alert("Cannot load configuration file %s : out of memory.\n", *argv);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200497 exit(1);
498 }
Willy Tarreau477ecd82010-01-03 21:12:30 +0100499 wl->s = *argv;
500 LIST_ADDQ(&cfg_cfgfiles, &wl->list);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200501 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200502 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200503 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200504 }
505 }
506 }
507 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200508 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200509 argv++; argc--;
510 }
511
512 global.mode = MODE_STARTING | /* during startup, we want most of the alerts */
513 (arg_mode & (MODE_DAEMON | MODE_FOREGROUND | MODE_VERBOSE
514 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
515
Willy Tarreau477ecd82010-01-03 21:12:30 +0100516 if (LIST_ISEMPTY(&cfg_cfgfiles))
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200517 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200518
Willy Tarreau576132e2011-09-10 19:26:56 +0200519 if (change_dir && chdir(change_dir) < 0) {
520 Alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
521 exit(1);
522 }
523
Willy Tarreaubaaee002006-06-26 02:48:02 +0200524 have_appsession = 0;
525 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200526
527 init_default_instance();
528
Willy Tarreau477ecd82010-01-03 21:12:30 +0100529 list_for_each_entry(wl, &cfg_cfgfiles, list) {
Willy Tarreauc4382422009-12-06 13:10:44 +0100530 int ret;
531
Willy Tarreau477ecd82010-01-03 21:12:30 +0100532 ret = readcfgfile(wl->s);
Willy Tarreauc4382422009-12-06 13:10:44 +0100533 if (ret == -1) {
534 Alert("Could not open configuration file %s : %s\n",
Willy Tarreau477ecd82010-01-03 21:12:30 +0100535 wl->s, strerror(errno));
Willy Tarreauc4382422009-12-06 13:10:44 +0100536 exit(1);
537 }
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100538 if (ret & (ERR_ABORT|ERR_FATAL))
Willy Tarreau477ecd82010-01-03 21:12:30 +0100539 Alert("Error(s) found in configuration file : %s\n", wl->s);
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100540 err_code |= ret;
Willy Tarreau058e9072009-07-20 09:30:05 +0200541 if (err_code & ERR_ABORT)
Willy Tarreau5d01a632009-06-22 16:02:30 +0200542 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200543 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200544
Willy Tarreaubb925012009-07-23 13:36:36 +0200545 err_code |= check_config_validity();
546 if (err_code & (ERR_ABORT|ERR_FATAL)) {
547 Alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200548 exit(1);
549 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200550
551 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +0100552 struct peers *pr;
553 struct proxy *px;
554
555 for (pr = peers; pr; pr = pr->next)
556 if (pr->peers_fe)
557 break;
558
559 for (px = proxy; px; px = px->next)
560 if (px->state == PR_STNEW && px->listen)
561 break;
562
563 if (pr || px) {
564 /* At least one peer or one listener has been found */
565 qfprintf(stdout, "Configuration file is valid\n");
566 exit(0);
567 }
568 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
569 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200570 }
571
Willy Tarreaue9b26022011-08-01 20:57:55 +0200572 global_listener_queue_task = task_new();
573 if (!global_listener_queue_task) {
574 Alert("Out of memory when initializing global task\n");
575 exit(1);
576 }
577 /* very simple initialization, users will queue the task if needed */
578 global_listener_queue_task->context = NULL; /* not even a context! */
579 global_listener_queue_task->process = manage_global_listener_queue;
580 global_listener_queue_task->expire = TICK_ETERNITY;
581
Willy Tarreau8280d642009-09-23 23:37:52 +0200582 /* now we know the buffer size, we can initialize the buffers */
583 init_buffer();
584
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200585 if (have_appsession)
586 appsession_init();
587
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200588 if (start_checks() < 0)
589 exit(1);
590
Willy Tarreaubaaee002006-06-26 02:48:02 +0200591 if (cfg_maxconn > 0)
592 global.maxconn = cfg_maxconn;
593
594 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +0200595 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200596 global.pidfile = strdup(cfg_pidfile);
597 }
598
599 if (global.maxconn == 0)
600 global.maxconn = DEFAULT_MAXCONN;
601
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100602 if (!global.maxpipes) {
603 /* maxpipes not specified. Count how many frontends and backends
604 * may be using splicing, and bound that to maxconn.
605 */
606 struct proxy *cur;
607 int nbfe = 0, nbbe = 0;
608
609 for (cur = proxy; cur; cur = cur->next) {
610 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
611 if (cur->cap & PR_CAP_FE)
612 nbfe += cur->maxconn;
613 if (cur->cap & PR_CAP_BE)
Willy Tarreauafb48762009-01-25 10:42:05 +0100614 nbbe += cur->fullconn ? cur->fullconn : global.maxconn;
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100615 }
616 }
617 global.maxpipes = MAX(nbfe, nbbe);
618 if (global.maxpipes > global.maxconn)
619 global.maxpipes = global.maxconn;
Willy Tarreau686ac822009-01-25 14:06:58 +0100620 global.maxpipes /= 4;
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100621 }
622
623
Willy Tarreauabacc2c2011-09-07 14:26:33 +0200624 global.hardmaxconn = global.maxconn; /* keep this max value */
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 Tarreau3c63fd82011-09-07 18:00:47 +0200628 if (global.stats_fe)
629 global.maxsock += global.stats_fe->maxconn;
630
631 if (peers) {
632 /* peers also need to bypass global maxconn */
633 struct peers *p = peers;
634
635 for (p = peers; p; p = p->next)
636 if (p->peers_fe)
637 global.maxsock += p->peers_fe->maxconn;
638 }
639
Willy Tarreau1db37712007-06-03 17:16:49 +0200640 if (global.tune.maxpollevents <= 0)
641 global.tune.maxpollevents = MAX_POLL_EVENTS;
642
Willy Tarreauf49d1df2009-03-01 08:35:41 +0100643 if (global.tune.maxaccept == 0) {
Willy Tarreau4827fd22011-07-22 21:59:59 +0200644 /* Note: we should not try to accept too many connections at once,
645 * because past one point we're significantly reducing the cache
646 * efficiency and the highest session rate significantly drops.
647 * Values between 15 and 35 seem fine on a Core i5 with 4M L3 cache.
648 */
Willy Tarreaua0250ba2008-01-06 11:22:57 +0100649 if (global.nbproc > 1)
650 global.tune.maxaccept = 8; /* leave some conns to other processes */
651 else
Willy Tarreau4827fd22011-07-22 21:59:59 +0200652 global.tune.maxaccept = 32; /* accept more incoming conns at once */
Willy Tarreaua0250ba2008-01-06 11:22:57 +0100653 }
654
Willy Tarreau6f4a82c2009-03-21 20:43:57 +0100655 if (global.tune.recv_enough == 0)
656 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
657
Willy Tarreau27a674e2009-08-17 07:23:33 +0200658 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
659 global.tune.maxrewrite = global.tune.bufsize / 2;
660
Willy Tarreaubaaee002006-06-26 02:48:02 +0200661 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
662 /* command line debug mode inhibits configuration mode */
663 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
664 }
665 global.mode |= (arg_mode & (MODE_DAEMON | MODE_FOREGROUND | MODE_QUIET |
Willy Tarreaufbee7132007-10-18 13:53:22 +0200666 MODE_VERBOSE | MODE_DEBUG ));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200667
668 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_QUIET))) {
669 Warning("<debug> mode incompatible with <quiet> and <daemon>. Keeping <debug> only.\n");
670 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
671 }
672
673 if ((global.nbproc > 1) && !(global.mode & MODE_DAEMON)) {
674 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
675 Warning("<nbproc> is only meaningful in daemon mode. Setting limit to 1 process.\n");
676 global.nbproc = 1;
677 }
678
679 if (global.nbproc < 1)
680 global.nbproc = 1;
681
Willy Tarreau8096de92010-02-26 11:12:27 +0100682 swap_buffer = (char *)calloc(1, global.tune.bufsize);
683
Willy Tarreau8d5d77e2009-10-18 07:25:52 +0200684 fdinfo = (struct fdinfo *)calloc(1,
685 sizeof(struct fdinfo) * (global.maxsock));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200686 fdtab = (struct fdtab *)calloc(1,
687 sizeof(struct fdtab) * (global.maxsock));
688 for (i = 0; i < global.maxsock; i++) {
689 fdtab[i].state = FD_STCLOSE;
690 }
Willy Tarreau4f60f162007-04-08 16:39:58 +0200691
Willy Tarreauef1d1f82007-04-16 00:25:25 +0200692 /*
693 * Note: we could register external pollers here.
694 * Built-in pollers have been registered before main().
695 */
Willy Tarreau4f60f162007-04-08 16:39:58 +0200696
Willy Tarreau43b78992009-01-25 15:42:27 +0100697 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200698 disable_poller("kqueue");
699
Willy Tarreau43b78992009-01-25 15:42:27 +0100700 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +0200701 disable_poller("epoll");
702
Willy Tarreau43b78992009-01-25 15:42:27 +0100703 if (!(global.tune.options & GTUNE_USE_SEPOLL))
Willy Tarreaude99e992007-04-16 00:53:59 +0200704 disable_poller("sepoll");
705
Willy Tarreau43b78992009-01-25 15:42:27 +0100706 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +0200707 disable_poller("poll");
708
Willy Tarreau43b78992009-01-25 15:42:27 +0100709 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +0200710 disable_poller("select");
711
712 /* Note: we could disable any poller by name here */
713
Willy Tarreau2ff76222007-04-09 19:29:56 +0200714 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
715 list_pollers(stderr);
716
Willy Tarreau4f60f162007-04-08 16:39:58 +0200717 if (!init_pollers()) {
Willy Tarreau2ff76222007-04-09 19:29:56 +0200718 Alert("No polling mechanism available.\n");
Willy Tarreau4f60f162007-04-08 16:39:58 +0200719 exit(1);
720 }
Willy Tarreau2ff76222007-04-09 19:29:56 +0200721 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
722 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +0200723 }
724
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +0200725 if (!global.node)
726 global.node = strdup(hostname);
727
Willy Tarreaubaaee002006-06-26 02:48:02 +0200728}
729
Simon Horman6fb82592011-07-15 13:14:11 +0900730static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +0900731{
Simon Hormanac821422011-07-15 13:14:09 +0900732 struct acl_term_suite *suite, *suiteb;
733 struct acl_term *term, *termb;
734
Simon Horman6fb82592011-07-15 13:14:11 +0900735 if (!cond)
736 return;
737
738 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
739 list_for_each_entry_safe(term, termb, &suite->terms, list) {
740 LIST_DEL(&term->list);
741 free(term);
Simon Hormanac821422011-07-15 13:14:09 +0900742 }
Simon Horman6fb82592011-07-15 13:14:11 +0900743 LIST_DEL(&suite->list);
744 free(suite);
745 }
746
747 free(cond);
748}
749
750static void deinit_tcp_rules(struct list *rules)
751{
752 struct tcp_rule *trule, *truleb;
753
754 list_for_each_entry_safe(trule, truleb, rules, list) {
Simon Hormanac821422011-07-15 13:14:09 +0900755 LIST_DEL(&trule->list);
Simon Horman6fb82592011-07-15 13:14:11 +0900756 deinit_acl_cond(trule->cond);
Simon Hormanac821422011-07-15 13:14:09 +0900757 free(trule);
758 }
759}
760
Willy Tarreauf9954102012-04-20 14:03:29 +0200761static void deinit_pattern_arg(struct arg *p)
Simon Horman6fb82592011-07-15 13:14:11 +0900762{
Willy Tarreauf9954102012-04-20 14:03:29 +0200763 struct arg *p_back = p;
764
Simon Horman6fb82592011-07-15 13:14:11 +0900765 if (!p)
766 return;
767
Willy Tarreauf9954102012-04-20 14:03:29 +0200768 while (p->type != ARGT_STOP) {
769 if (p->type == ARGT_FE || p->type == ARGT_BE ||
770 p->type == ARGT_TAB || p->type == ARGT_SRV ||
771 p->type == ARGT_USR || p->type == ARGT_STR) {
772 free(p->data.str.str);
773 p->data.str.str = NULL;
Willy Tarreauecfb8e82012-04-20 12:29:52 +0200774 }
Willy Tarreauf9954102012-04-20 14:03:29 +0200775 p++;
Willy Tarreauecfb8e82012-04-20 12:29:52 +0200776 }
Simon Horman6fb82592011-07-15 13:14:11 +0900777
Willy Tarreauf9954102012-04-20 14:03:29 +0200778 free(p_back);
Simon Horman6fb82592011-07-15 13:14:11 +0900779}
780
781static void deinit_stick_rules(struct list *rules)
782{
783 struct sticking_rule *rule, *ruleb;
784
785 list_for_each_entry_safe(rule, ruleb, rules, list) {
786 LIST_DEL(&rule->list);
787 deinit_acl_cond(rule->cond);
788 if (rule->expr) {
789 struct pattern_conv_expr *conv_expr, *conv_exprb;
790 list_for_each_entry_safe(conv_expr, conv_exprb, &rule->expr->conv_exprs, list)
Willy Tarreauf9954102012-04-20 14:03:29 +0200791 deinit_pattern_arg(conv_expr->arg_p);
792 deinit_pattern_arg(rule->expr->arg_p);
Simon Horman6fb82592011-07-15 13:14:11 +0900793 free(rule->expr);
794 }
795 free(rule);
796 }
797}
798
Willy Tarreaubaaee002006-06-26 02:48:02 +0200799void deinit(void)
800{
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200801 struct proxy *p = proxy, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200802 struct cap_hdr *h,*h_next;
803 struct server *s,*s_next;
804 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200805 struct acl_cond *cond, *condb;
806 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200807 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200808 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +0200809 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200810 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +0100811 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +0100812 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200813 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +0200814 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +0100815 struct logformat_node *lf, *lfb;
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200816 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200817
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200818 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200819 while (p) {
Willy Tarreaua534fea2008-08-03 12:19:50 +0200820 free(p->id);
821 free(p->check_req);
822 free(p->cookie_name);
823 free(p->cookie_domain);
824 free(p->url_param_name);
825 free(p->capture_name);
826 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +0900827 free(p->rdp_cookie_name);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200828
Willy Tarreaua534fea2008-08-03 12:19:50 +0200829 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +0200830 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200831
Willy Tarreauf4f04122010-01-28 18:10:50 +0100832 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
833 LIST_DEL(&cwl->list);
834 free(cwl->s);
835 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +0100836 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200837
Willy Tarreauf4f04122010-01-28 18:10:50 +0100838 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
839 LIST_DEL(&cwl->list);
840 free(cwl->s);
841 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +0100842 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200843
844 list_for_each_entry_safe(cond, condb, &p->block_cond, list) {
845 LIST_DEL(&cond->list);
846 prune_acl_cond(cond);
847 free(cond);
848 }
849
Willy Tarreaub80c2302007-11-30 20:51:32 +0100850 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
851 LIST_DEL(&cond->list);
852 prune_acl_cond(cond);
853 free(cond);
854 }
855
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200856 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200857 if (exp->preg) {
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200858 regfree((regex_t *)exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200859 free((regex_t *)exp->preg);
860 }
861
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200862 if (exp->replace && exp->action != ACT_SETBE)
863 free((char *)exp->replace);
864 expb = exp;
865 exp = exp->next;
866 free(expb);
867 }
868
869 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200870 if (exp->preg) {
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200871 regfree((regex_t *)exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200872 free((regex_t *)exp->preg);
873 }
874
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200875 if (exp->replace && exp->action != ACT_SETBE)
876 free((char *)exp->replace);
877 expb = exp;
878 exp = exp->next;
879 free(expb);
880 }
881
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200882 /* build a list of unique uri_auths */
883 if (!ua)
884 ua = p->uri_auth;
885 else {
886 /* check if p->uri_auth is unique */
887 for (uap = ua; uap; uap=uap->next)
888 if (uap == p->uri_auth)
889 break;
890
Willy Tarreauaccc4e12008-06-24 11:14:45 +0200891 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200892 /* add it, if it is */
893 p->uri_auth->next = ua;
894 ua = p->uri_auth;
895 }
896 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200897
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200898 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
899 LIST_DEL(&acl->list);
900 prune_acl(acl);
901 free(acl);
902 }
903
Willy Tarreau4a5cade2012-04-05 21:09:48 +0200904 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
905 LIST_DEL(&srule->list);
906 prune_acl_cond(srule->cond);
907 free(srule->cond);
908 free(srule);
909 }
910
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200911 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
912 LIST_DEL(&rule->list);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200913 prune_acl_cond(rule->cond);
914 free(rule->cond);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200915 free(rule);
916 }
917
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200918 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
919 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +0100920 if (rdr->cond) {
921 prune_acl_cond(rdr->cond);
922 free(rdr->cond);
923 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200924 free(rdr->rdr_str);
925 free(rdr);
926 }
927
William Lallemand0f99e342011-10-12 17:50:54 +0200928 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
929 LIST_DEL(&log->list);
930 free(log);
931 }
932
William Lallemand723b73a2012-02-08 16:37:49 +0100933 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
934 LIST_DEL(&lf->list);
935 free(lf);
936 }
937
Simon Hormanac821422011-07-15 13:14:09 +0900938 deinit_tcp_rules(&p->tcp_req.inspect_rules);
939 deinit_tcp_rules(&p->tcp_req.l4_rules);
940
Simon Horman6fb82592011-07-15 13:14:11 +0900941 deinit_stick_rules(&p->storersp_rules);
942 deinit_stick_rules(&p->sticking_rules);
943
Willy Tarreaua534fea2008-08-03 12:19:50 +0200944 free(p->appsession_name);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200945
946 h = p->req_cap;
947 while (h) {
948 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +0200949 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +0200950 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200951 free(h);
952 h = h_next;
953 }/* end while(h) */
954
955 h = p->rsp_cap;
956 while (h) {
957 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +0200958 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +0200959 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200960 free(h);
961 h = h_next;
962 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200963
Willy Tarreaubaaee002006-06-26 02:48:02 +0200964 s = p->srv;
965 while (s) {
966 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200967
968 if (s->check) {
969 task_delete(s->check);
970 task_free(s->check);
971 }
972
Willy Tarreau2e993902011-10-31 11:53:20 +0100973 if (s->warmup) {
974 task_delete(s->warmup);
975 task_free(s->warmup);
976 }
977
Willy Tarreaua534fea2008-08-03 12:19:50 +0200978 free(s->id);
979 free(s->cookie);
Nick Chalk57b1bf72010-03-16 15:50:46 +0000980 free(s->check_data);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200981 free(s);
982 s = s_next;
983 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200984
Willy Tarreaubaaee002006-06-26 02:48:02 +0200985 l = p->listen;
986 while (l) {
987 l_next = l->next;
Willy Tarreauf6e2cc72010-09-03 10:38:17 +0200988 unbind_listener(l);
989 delete_listener(l);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +0100990 free(l->name);
991 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200992 free(l);
993 l = l_next;
994 }/* end while(l) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200995
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +0100996 free(p->desc);
997 free(p->fwdfor_hdr_name);
998
Willy Tarreauff011f22011-01-06 17:51:27 +0100999 free_http_req_rules(&p->http_req_rules);
Willy Tarreau918ff602011-07-25 16:33:49 +02001000 free(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01001001
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001002 pool_destroy2(p->req_cap_pool);
1003 pool_destroy2(p->rsp_cap_pool);
Simon Hormanb08584a2011-07-15 13:14:10 +09001004 pool_destroy2(p->table.pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001005
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001006 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001007 p = p->next;
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001008 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001009 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02001010
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001011 while (ua) {
1012 uap = ua;
1013 ua = ua->next;
1014
Willy Tarreaua534fea2008-08-03 12:19:50 +02001015 free(uap->uri_prefix);
1016 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001017 free(uap->node);
1018 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001019
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001020 userlist_free(uap->userlist);
Willy Tarreauff011f22011-01-06 17:51:27 +01001021 free_http_req_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001022
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001023 free(uap);
1024 }
1025
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001026 userlist_free(userlist);
1027
Willy Tarreaudd815982007-10-16 12:25:14 +02001028 protocol_unbind_all();
1029
Joe Williamsdf5b38f2010-12-29 17:05:48 +01001030 free(global.log_send_hostname); global.log_send_hostname = NULL;
Kevinm48936af2010-12-22 16:08:21 +00001031 free(global.log_tag); global.log_tag = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001032 free(global.chroot); global.chroot = NULL;
1033 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001034 free(global.node); global.node = NULL;
1035 free(global.desc); global.desc = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001036 free(fdtab); fdtab = NULL;
1037 free(oldpids); oldpids = NULL;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001038 free(global_listener_queue_task); global_listener_queue_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001039
William Lallemand0f99e342011-10-12 17:50:54 +02001040 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
1041 LIST_DEL(&log->list);
1042 free(log);
1043 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01001044 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
1045 LIST_DEL(&wl->list);
1046 free(wl);
1047 }
1048
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001049 pool_destroy2(pool2_session);
Willy Tarreau7341d942007-05-13 19:56:02 +02001050 pool_destroy2(pool2_buffer);
Willy Tarreau332f8bf2007-05-13 21:36:56 +02001051 pool_destroy2(pool2_requri);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001052 pool_destroy2(pool2_task);
Willy Tarreau086b3b42007-05-13 21:45:51 +02001053 pool_destroy2(pool2_capture);
Willy Tarreau63963c62007-05-13 21:29:55 +02001054 pool_destroy2(pool2_appsess);
Willy Tarreaue4d7e552007-05-13 20:19:55 +02001055 pool_destroy2(pool2_pendconn);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001056 pool_destroy2(pool2_sig_handlers);
Willy Tarreau34eb6712011-10-24 18:15:04 +02001057 pool_destroy2(pool2_hdr_idx);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001058
1059 if (have_appsession) {
Willy Tarreau63963c62007-05-13 21:29:55 +02001060 pool_destroy2(apools.serverid);
1061 pool_destroy2(apools.sessid);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001062 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001063
1064 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001065} /* end deinit() */
1066
Willy Tarreaubb545b42010-08-25 12:58:59 +02001067/* sends the signal <sig> to all pids found in <oldpids>. Returns the number of
1068 * pids the signal was correctly delivered to.
1069 */
1070static int tell_old_pids(int sig)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001071{
1072 int p;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001073 int ret = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001074 for (p = 0; p < nb_oldpids; p++)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001075 if (kill(oldpids[p], sig) == 0)
1076 ret++;
1077 return ret;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001078}
1079
Willy Tarreau918ff602011-07-25 16:33:49 +02001080/* Runs the polling loop */
Willy Tarreau4f60f162007-04-08 16:39:58 +02001081void run_poll_loop()
1082{
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001083 int next;
Willy Tarreau4f60f162007-04-08 16:39:58 +02001084
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001085 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001086 while (1) {
Willy Tarreau29857942009-05-10 09:01:21 +02001087 /* check if we caught some signals and process them */
1088 signal_process_queue();
1089
Willy Tarreau58b458d2008-06-29 22:40:23 +02001090 /* Check if we can expire some tasks */
1091 wake_expired_tasks(&next);
1092
1093 /* Process a few tasks */
Willy Tarreaud825eef2007-05-12 22:35:00 +02001094 process_runnable_tasks(&next);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001095
Willy Tarreauaf7ad002010-08-31 15:39:26 +02001096 /* stop when there's nothing left to do */
1097 if (jobs == 0)
Willy Tarreau4f60f162007-04-08 16:39:58 +02001098 break;
1099
Willy Tarreau58b458d2008-06-29 22:40:23 +02001100 /* The poller will ensure it returns around <next> */
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001101 cur_poller.poll(&cur_poller, next);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001102 }
1103}
1104
Willy Tarreaue9b26022011-08-01 20:57:55 +02001105/* This is the global management task for listeners. It enables listeners waiting
1106 * for global resources when there are enough free resource, or at least once in
1107 * a while. It is designed to be called as a task.
1108 */
1109static struct task *manage_global_listener_queue(struct task *t)
1110{
1111 int next = TICK_ETERNITY;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001112 /* queue is empty, nothing to do */
1113 if (LIST_ISEMPTY(&global_listener_queue))
1114 goto out;
1115
1116 /* If there are still too many concurrent connections, let's wait for
1117 * some of them to go away. We don't need to re-arm the timer because
1118 * each of them will scan the queue anyway.
1119 */
1120 if (unlikely(actconn >= global.maxconn))
1121 goto out;
1122
1123 /* We should periodically try to enable listeners waiting for a global
1124 * resource here, because it is possible, though very unlikely, that
1125 * they have been blocked by a temporary lack of global resource such
1126 * as a file descriptor or memory and that the temporary condition has
1127 * disappeared.
1128 */
Willy Tarreauabacc2c2011-09-07 14:26:33 +02001129 dequeue_all_listeners(&global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +02001130
1131 out:
1132 t->expire = next;
1133 task_queue(t);
1134 return t;
1135}
Willy Tarreau4f60f162007-04-08 16:39:58 +02001136
Willy Tarreaubaaee002006-06-26 02:48:02 +02001137int main(int argc, char **argv)
1138{
1139 int err, retry;
1140 struct rlimit limit;
1141 FILE *pidfile = NULL;
Emeric Bruncf20bf12010-10-22 16:06:11 +02001142 char errmsg[100];
Willy Tarreaubaaee002006-06-26 02:48:02 +02001143
Emeric Bruncf20bf12010-10-22 16:06:11 +02001144 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001145 signal_register_fct(SIGQUIT, dump, SIGQUIT);
1146 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
1147 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001148
Willy Tarreaue437c442010-03-17 18:02:46 +01001149 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
1150 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
1151 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02001152 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001153 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001154
Willy Tarreaudc23a922011-02-16 11:10:36 +01001155 /* ulimits */
1156 if (!global.rlimit_nofile)
1157 global.rlimit_nofile = global.maxsock;
1158
1159 if (global.rlimit_nofile) {
1160 limit.rlim_cur = limit.rlim_max = global.rlimit_nofile;
1161 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
1162 Warning("[%s.main()] Cannot raise FD limit to %d.\n", argv[0], global.rlimit_nofile);
1163 }
1164 }
1165
1166 if (global.rlimit_memmax) {
1167 limit.rlim_cur = limit.rlim_max =
1168 global.rlimit_memmax * 1048576 / global.nbproc;
1169#ifdef RLIMIT_AS
1170 if (setrlimit(RLIMIT_AS, &limit) == -1) {
1171 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1172 argv[0], global.rlimit_memmax);
1173 }
1174#else
1175 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
1176 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1177 argv[0], global.rlimit_memmax);
1178 }
1179#endif
1180 }
1181
Willy Tarreaubaaee002006-06-26 02:48:02 +02001182 /* We will loop at most 100 times with 10 ms delay each time.
1183 * That's at most 1 second. We only send a signal to old pids
1184 * if we cannot grab at least one port.
1185 */
1186 retry = MAX_START_RETRIES;
1187 err = ERR_NONE;
1188 while (retry >= 0) {
1189 struct timeval w;
1190 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01001191 /* exit the loop on no error or fatal error */
1192 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001193 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001194 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001195 break;
1196
1197 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
1198 * listening sockets. So on those platforms, it would be wiser to
1199 * simply send SIGUSR1, which will not be undoable.
1200 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02001201 if (tell_old_pids(SIGTTOU) == 0) {
1202 /* no need to wait if we can't contact old pids */
1203 retry = 0;
1204 continue;
1205 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001206 /* give some time to old processes to stop listening */
1207 w.tv_sec = 0;
1208 w.tv_usec = 10*1000;
1209 select(0, NULL, NULL, NULL, &w);
1210 retry--;
1211 }
1212
1213 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01001214 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02001215 if (retry != MAX_START_RETRIES && nb_oldpids) {
1216 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001217 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02001218 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001219 exit(1);
1220 }
1221
1222 if (listeners == 0) {
1223 Alert("[%s.main()] No enabled listener found (check the <listen> keywords) ! Exiting.\n", argv[0]);
1224 /* Note: we don't have to send anything to the old pids because we
1225 * never stopped them. */
1226 exit(1);
1227 }
1228
Emeric Bruncf20bf12010-10-22 16:06:11 +02001229 err = protocol_bind_all(errmsg, sizeof(errmsg));
1230 if ((err & ~ERR_WARN) != ERR_NONE) {
1231 if ((err & ERR_ALERT) || (err & ERR_WARN))
1232 Alert("[%s.main()] %s.\n", argv[0], errmsg);
1233
Willy Tarreaudd815982007-10-16 12:25:14 +02001234 Alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
1235 protocol_unbind_all(); /* cleanup everything we can */
1236 if (nb_oldpids)
1237 tell_old_pids(SIGTTIN);
1238 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02001239 } else if (err & ERR_WARN) {
1240 Alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02001241 }
1242
Willy Tarreaubaaee002006-06-26 02:48:02 +02001243 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001244 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
1245 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001246
Willy Tarreaubaaee002006-06-26 02:48:02 +02001247 /* MODE_QUIET can inhibit alerts and warnings below this line */
1248
1249 global.mode &= ~MODE_STARTING;
1250 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
1251 /* detach from the tty */
1252 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001253 }
1254
1255 /* open log & pid files before the chroot */
1256 if (global.mode & MODE_DAEMON && global.pidfile != NULL) {
1257 int pidfd;
1258 unlink(global.pidfile);
1259 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
1260 if (pidfd < 0) {
1261 Alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
1262 if (nb_oldpids)
1263 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001264 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001265 exit(1);
1266 }
1267 pidfile = fdopen(pidfd, "w");
1268 }
1269
Willy Tarreaub38651a2007-03-24 17:24:39 +01001270#ifdef CONFIG_HAP_CTTPROXY
1271 if (global.last_checks & LSTCHK_CTTPROXY) {
1272 int ret;
1273
1274 ret = check_cttproxy_version();
1275 if (ret < 0) {
1276 Alert("[%s.main()] Cannot enable cttproxy.\n%s",
1277 argv[0],
1278 (ret == -1) ? " Incorrect module version.\n"
1279 : " Make sure you have enough permissions and that the module is loaded.\n");
Willy Tarreaudd815982007-10-16 12:25:14 +02001280 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01001281 exit(1);
1282 }
1283 }
1284#endif
1285
1286 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
1287 Alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001288 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001289 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01001290 exit(1);
1291 }
1292
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001293 /* If the user is not root, we'll still let him try the configuration
1294 * but we inform him that unexpected behaviour may occur.
1295 */
1296 if ((global.last_checks & LSTCHK_NETADM) && getuid())
1297 Warning("[%s.main()] Some options which require full privileges"
1298 " might not work well.\n"
1299 "", argv[0]);
1300
Willy Tarreauf223cc02007-10-15 18:57:08 +02001301 /* chroot if needed */
1302 if (global.chroot != NULL) {
Willy Tarreau21337822012-04-29 14:11:38 +02001303 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Willy Tarreauf223cc02007-10-15 18:57:08 +02001304 Alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
1305 if (nb_oldpids)
1306 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001307 protocol_unbind_all();
Willy Tarreauf223cc02007-10-15 18:57:08 +02001308 exit(1);
1309 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02001310 }
1311
Willy Tarreaubaaee002006-06-26 02:48:02 +02001312 if (nb_oldpids)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001313 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001314
1315 /* Note that any error at this stage will be fatal because we will not
1316 * be able to restart the old pids.
1317 */
1318
1319 /* setgid / setuid */
1320 if (global.gid && setgid(global.gid) == -1) {
1321 Alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
Willy Tarreaudd815982007-10-16 12:25:14 +02001322 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001323 exit(1);
1324 }
1325
1326 if (global.uid && setuid(global.uid) == -1) {
1327 Alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Willy Tarreaudd815982007-10-16 12:25:14 +02001328 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001329 exit(1);
1330 }
1331
1332 /* check ulimits */
1333 limit.rlim_cur = limit.rlim_max = 0;
1334 getrlimit(RLIMIT_NOFILE, &limit);
1335 if (limit.rlim_cur < global.maxsock) {
1336 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 +02001337 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001338 }
1339
1340 if (global.mode & MODE_DAEMON) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001341 struct proxy *px;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001342 int ret = 0;
1343 int proc;
1344
1345 /* the father launches the required number of processes */
1346 for (proc = 0; proc < global.nbproc; proc++) {
1347 ret = fork();
1348 if (ret < 0) {
1349 Alert("[%s.main()] Cannot fork.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001350 protocol_unbind_all();
Willy Tarreaud6803712007-10-16 07:44:56 +02001351 exit(1); /* there has been an error */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001352 }
1353 else if (ret == 0) /* child breaks here */
1354 break;
1355 if (pidfile != NULL) {
1356 fprintf(pidfile, "%d\n", ret);
1357 fflush(pidfile);
1358 }
Willy Tarreaudcd47712007-11-04 23:35:08 +01001359 relative_pid++; /* each child will get a different one */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001360 }
1361 /* close the pidfile both in children and father */
1362 if (pidfile != NULL)
1363 fclose(pidfile);
Willy Tarreaud137dd32010-08-25 12:49:05 +02001364
1365 /* We won't ever use this anymore */
1366 free(oldpids); oldpids = NULL;
1367 free(global.chroot); global.chroot = NULL;
1368 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001369
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001370 /* we might have to unbind some proxies from some processes */
1371 px = proxy;
1372 while (px != NULL) {
1373 if (px->bind_proc && px->state != PR_STSTOPPED) {
1374 if (!(px->bind_proc & (1 << proc)))
1375 stop_proxy(px);
1376 }
1377 px = px->next;
1378 }
1379
Willy Tarreaubaaee002006-06-26 02:48:02 +02001380 if (proc == global.nbproc)
1381 exit(0); /* parent must leave */
1382
1383 /* if we're NOT in QUIET mode, we should now close the 3 first FDs to ensure
1384 * that we can detach from the TTY. We MUST NOT do it in other cases since
1385 * it would have already be done, and 0-2 would have been affected to listening
1386 * sockets
1387 */
Willy Tarreau106cb762008-11-16 07:40:34 +01001388 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001389 /* detach from the tty */
1390 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreau106cb762008-11-16 07:40:34 +01001391 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001392 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
1393 }
1394 pid = getpid(); /* update child's pid */
1395 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02001396 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001397 }
1398
Willy Tarreaudd815982007-10-16 12:25:14 +02001399 protocol_enable_all();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001400 /*
1401 * That's it : the central polling loop. Run until we stop.
1402 */
1403 run_poll_loop();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001404
1405 /* Free all Hash Keys and all Hash elements */
1406 appsession_cleanup();
1407 /* Do some cleanup */
1408 deinit();
1409
1410 exit(0);
1411}
1412
1413
1414/*
1415 * Local variables:
1416 * c-indent-level: 8
1417 * c-basic-offset: 8
1418 * End:
1419 */