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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 */
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200127int jobs = 0; /* number of active jobs (conns, listeners, active tasks, ...) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200128
129/* Here we store informations about the pids of the processes we may pause
130 * or kill. We will send them a signal every 10 ms until we can bind to all
131 * our ports. With 200 retries, that's about 2 seconds.
132 */
133#define MAX_START_RETRIES 200
Willy Tarreaubaaee002006-06-26 02:48:02 +0200134static 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 Tarreaubb545b42010-08-25 12:58:59 +0200145int nb_oldpids = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200146const int zero = 0;
147const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200148const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200149
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100150char hostname[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200151
152
153/*********************************************************************/
154/* general purpose functions ***************************************/
155/*********************************************************************/
156
157void display_version()
158{
159 printf("HA-Proxy version " HAPROXY_VERSION " " HAPROXY_DATE"\n");
Willy Tarreaub05613d2010-02-02 10:18:28 +0100160 printf("Copyright 2000-2010 Willy Tarreau <w@1wt.eu>\n\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200161}
162
Willy Tarreau7b066db2007-12-02 11:28:59 +0100163void display_build_opts()
164{
165 printf("Build options :"
166#ifdef BUILD_TARGET
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100167 "\n TARGET = " BUILD_TARGET
Willy Tarreau7b066db2007-12-02 11:28:59 +0100168#endif
169#ifdef BUILD_CPU
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100170 "\n CPU = " BUILD_CPU
Willy Tarreau7b066db2007-12-02 11:28:59 +0100171#endif
172#ifdef BUILD_CC
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100173 "\n CC = " BUILD_CC
174#endif
175#ifdef BUILD_CFLAGS
176 "\n CFLAGS = " BUILD_CFLAGS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100177#endif
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100178#ifdef BUILD_OPTIONS
179 "\n OPTIONS = " BUILD_OPTIONS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100180#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200181 "\n\nDefault settings :"
182 "\n maxconn = %d, bufsize = %d, maxrewrite = %d, maxpollevents = %d"
183 "\n\n",
184 DEFAULT_MAXCONN, BUFSIZE, MAXREWRITE, MAX_POLL_EVENTS);
Willy Tarreaube5b6852009-10-03 18:57:08 +0200185
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100186 printf("Encrypted password support via crypt(3): "
187#ifdef CONFIG_HAP_CRYPT
188 "yes"
189#else
190 "no"
191#endif
192 "\n");
193
194 putchar('\n');
195
Willy Tarreaube5b6852009-10-03 18:57:08 +0200196 list_pollers(stdout);
197 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100198}
199
Willy Tarreaubaaee002006-06-26 02:48:02 +0200200/*
201 * This function prints the command line usage and exits
202 */
203void usage(char *name)
204{
205 display_version();
206 fprintf(stderr,
Willy Tarreau5d01a632009-06-22 16:02:30 +0200207 "Usage : %s [-f <cfgfile>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200208 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
209 " [ -p <pidfile> ] [ -m <max megs> ]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100210 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200211 " -d enters debug mode ; -db only disables background mode.\n"
212 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau6bde87b2009-05-18 16:29:51 +0200213 " -D goes daemon\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200214 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200215 " -c check mode : only check config files and exit\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200216 " -n sets the maximum total # of connections (%d)\n"
217 " -m limits the usable amount of memory (in MB)\n"
218 " -N sets the default, per-proxy maximum # of connections (%d)\n"
219 " -p writes pids of all children to this file\n"
220#if defined(ENABLE_EPOLL)
221 " -de disables epoll() usage even when available\n"
222#endif
Willy Tarreaude99e992007-04-16 00:53:59 +0200223#if defined(ENABLE_SEPOLL)
224 " -ds disables speculative epoll() usage even when available\n"
225#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200226#if defined(ENABLE_KQUEUE)
227 " -dk disables kqueue() usage even when available\n"
228#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200229#if defined(ENABLE_POLL)
230 " -dp disables poll() usage even when available\n"
231#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200232#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100233 " -dS disables splice usage (broken on old kernels)\n"
234#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200235 " -sf/-st [pid ]* finishes/terminates old pids. Must be last arguments.\n"
236 "\n",
237 name, DEFAULT_MAXCONN, cfg_maxpconn);
238 exit(1);
239}
240
241
242
243/*********************************************************************/
244/* more specific functions ***************************************/
245/*********************************************************************/
246
247/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200248 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
249 * a signal zero to all subscribers. This means that it's as easy as
250 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200251 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200252void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200253{
254 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200255 signal_unregister_handler(sh);
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200256 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200257}
258
259/*
260 * upon SIGTTOU, we pause everything
261 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200262void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200263{
264 pause_proxies();
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200265 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200266}
267
268/*
269 * upon SIGTTIN, let's have a soft stop.
270 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200271void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200272{
273 listen_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200274}
275
276/*
277 * this function dumps every server's state when the process receives SIGHUP.
278 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200279void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200280{
281 struct proxy *p = proxy;
282
283 Warning("SIGHUP received, dumping servers states.\n");
284 while (p) {
285 struct server *s = p->srv;
286
287 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
288 while (s) {
289 snprintf(trash, sizeof(trash),
Willy Tarreau3b88d442009-04-11 20:44:08 +0200290 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
Willy Tarreaubaaee002006-06-26 02:48:02 +0200291 p->id, s->id,
292 (s->state & SRV_RUNNING) ? "UP" : "DOWN",
Krzysztof Piotr Oledzki052d4fd2009-10-04 14:52:57 +0200293 s->cur_sess, s->nbpend, s->counters.cum_sess);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200294 Warning("%s\n", trash);
295 send_log(p, LOG_NOTICE, "%s\n", trash);
296 s = s->next;
297 }
298
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200299 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
300 if (!p->srv) {
301 snprintf(trash, sizeof(trash),
Willy Tarreau3b88d442009-04-11 20:44:08 +0200302 "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 +0200303 p->id,
Krzysztof Piotr Oledzki052d4fd2009-10-04 14:52:57 +0200304 p->feconn, p->beconn, p->totpend, p->nbpend, p->counters.cum_feconn, p->counters.cum_beconn);
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200305 } else if (p->srv_act == 0) {
Willy Tarreaubaaee002006-06-26 02:48:02 +0200306 snprintf(trash, sizeof(trash),
Willy Tarreau3b88d442009-04-11 20:44:08 +0200307 "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 +0200308 p->id,
309 (p->srv_bck) ? "is running on backup servers" : "has no server available",
Krzysztof Piotr Oledzki052d4fd2009-10-04 14:52:57 +0200310 p->feconn, p->beconn, p->totpend, p->nbpend, p->counters.cum_feconn, p->counters.cum_beconn);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200311 } else {
312 snprintf(trash, sizeof(trash),
313 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
Willy Tarreau3b88d442009-04-11 20:44:08 +0200314 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
Willy Tarreaubaaee002006-06-26 02:48:02 +0200315 p->id, p->srv_act, p->srv_bck,
Krzysztof Piotr Oledzki052d4fd2009-10-04 14:52:57 +0200316 p->feconn, p->beconn, p->totpend, p->nbpend, p->counters.cum_feconn, p->counters.cum_beconn);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200317 }
318 Warning("%s\n", trash);
319 send_log(p, LOG_NOTICE, "%s\n", trash);
320
321 p = p->next;
322 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200323}
324
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200325void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200326{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200327 /* dump memory usage then free everything possible */
328 dump_pools();
329 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200330}
331
Willy Tarreaubaaee002006-06-26 02:48:02 +0200332/*
333 * This function initializes all the necessary variables. It only returns
334 * if everything is OK. If something fails, it exits.
335 */
336void init(int argc, char **argv)
337{
338 int i;
339 int arg_mode = 0; /* MODE_DEBUG, ... */
340 char *old_argv = *argv;
341 char *tmp;
342 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +0200343 int err_code = 0;
Willy Tarreau477ecd82010-01-03 21:12:30 +0100344 struct wordlist *wl;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200345
Willy Tarreaubaaee002006-06-26 02:48:02 +0200346 /*
347 * Initialize the previously static variables.
348 */
349
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100350 totalconn = actconn = maxfd = listeners = stopping = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200351
352
353#ifdef HAPROXY_MEMMAX
354 global.rlimit_memmax = HAPROXY_MEMMAX;
355#endif
356
Willy Tarreaub0b37bc2008-06-23 14:00:57 +0200357 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200358 start_date = now;
359
Willy Tarreau29857942009-05-10 09:01:21 +0200360 signal_init();
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200361 init_task();
362 init_session();
Willy Tarreau8280d642009-09-23 23:37:52 +0200363 /* warning, we init buffers later */
Willy Tarreaue4d7e552007-05-13 20:19:55 +0200364 init_pendconn();
Willy Tarreau80587432006-12-24 17:47:20 +0100365 init_proto_http();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200366
Willy Tarreau43b78992009-01-25 15:42:27 +0100367 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200368#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100369 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200370#endif
371#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100372 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200373#endif
Willy Tarreaude99e992007-04-16 00:53:59 +0200374#if defined(ENABLE_SEPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100375 global.tune.options |= GTUNE_USE_SEPOLL;
Willy Tarreaude99e992007-04-16 00:53:59 +0200376#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200377#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +0100378 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200379#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200380#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100381 global.tune.options |= GTUNE_USE_SPLICE;
382#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200383
384 pid = getpid();
385 progname = *argv;
386 while ((tmp = strchr(progname, '/')) != NULL)
387 progname = tmp + 1;
388
389 argc--; argv++;
390 while (argc > 0) {
391 char *flag;
392
393 if (**argv == '-') {
394 flag = *argv+1;
395
396 /* 1 arg */
397 if (*flag == 'v') {
398 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +0100399 if (flag[1] == 'v') /* -vv */
400 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200401 exit(0);
402 }
403#if defined(ENABLE_EPOLL)
404 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +0100405 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200406#endif
Willy Tarreaude99e992007-04-16 00:53:59 +0200407#if defined(ENABLE_SEPOLL)
408 else if (*flag == 'd' && flag[1] == 's')
Willy Tarreau43b78992009-01-25 15:42:27 +0100409 global.tune.options &= ~GTUNE_USE_SEPOLL;
Willy Tarreaude99e992007-04-16 00:53:59 +0200410#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200411#if defined(ENABLE_POLL)
412 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +0100413 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200414#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +0200415#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200416 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +0100417 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200418#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200419#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100420 else if (*flag == 'd' && flag[1] == 'S')
421 global.tune.options &= ~GTUNE_USE_SPLICE;
422#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200423 else if (*flag == 'V')
424 arg_mode |= MODE_VERBOSE;
425 else if (*flag == 'd' && flag[1] == 'b')
426 arg_mode |= MODE_FOREGROUND;
427 else if (*flag == 'd')
428 arg_mode |= MODE_DEBUG;
429 else if (*flag == 'c')
430 arg_mode |= MODE_CHECK;
431 else if (*flag == 'D')
Willy Tarreau6bde87b2009-05-18 16:29:51 +0200432 arg_mode |= MODE_DAEMON;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200433 else if (*flag == 'q')
434 arg_mode |= MODE_QUIET;
435 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
436 /* list of pids to finish ('f') or terminate ('t') */
437
438 if (flag[1] == 'f')
439 oldpids_sig = SIGUSR1; /* finish then exit */
440 else
441 oldpids_sig = SIGTERM; /* terminate immediately */
442 argv++; argc--;
443
444 if (argc > 0) {
445 oldpids = calloc(argc, sizeof(int));
446 while (argc > 0) {
447 oldpids[nb_oldpids] = atol(*argv);
448 if (oldpids[nb_oldpids] <= 0)
449 usage(old_argv);
450 argc--; argv++;
451 nb_oldpids++;
452 }
453 }
454 }
455 else { /* >=2 args */
456 argv++; argc--;
457 if (argc == 0)
458 usage(old_argv);
459
460 switch (*flag) {
461 case 'n' : cfg_maxconn = atol(*argv); break;
462 case 'm' : global.rlimit_memmax = atol(*argv); break;
463 case 'N' : cfg_maxpconn = atol(*argv); break;
Willy Tarreau5d01a632009-06-22 16:02:30 +0200464 case 'f' :
Willy Tarreau477ecd82010-01-03 21:12:30 +0100465 wl = (struct wordlist *)calloc(1, sizeof(*wl));
466 if (!wl) {
467 Alert("Cannot load configuration file %s : out of memory.\n", *argv);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200468 exit(1);
469 }
Willy Tarreau477ecd82010-01-03 21:12:30 +0100470 wl->s = *argv;
471 LIST_ADDQ(&cfg_cfgfiles, &wl->list);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200472 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200473 case 'p' : cfg_pidfile = *argv; break;
474 default: usage(old_argv);
475 }
476 }
477 }
478 else
479 usage(old_argv);
480 argv++; argc--;
481 }
482
483 global.mode = MODE_STARTING | /* during startup, we want most of the alerts */
484 (arg_mode & (MODE_DAEMON | MODE_FOREGROUND | MODE_VERBOSE
485 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
486
Willy Tarreau477ecd82010-01-03 21:12:30 +0100487 if (LIST_ISEMPTY(&cfg_cfgfiles))
Willy Tarreaubaaee002006-06-26 02:48:02 +0200488 usage(old_argv);
489
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100490 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
491 * the string in case of truncation, and at least FreeBSD appears not to do
492 * it.
493 */
494 memset(hostname, 0, sizeof(hostname));
495 gethostname(hostname, sizeof(hostname) - 1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200496
497 have_appsession = 0;
498 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200499
500 init_default_instance();
501
Willy Tarreau477ecd82010-01-03 21:12:30 +0100502 list_for_each_entry(wl, &cfg_cfgfiles, list) {
Willy Tarreauc4382422009-12-06 13:10:44 +0100503 int ret;
504
Willy Tarreau477ecd82010-01-03 21:12:30 +0100505 ret = readcfgfile(wl->s);
Willy Tarreauc4382422009-12-06 13:10:44 +0100506 if (ret == -1) {
507 Alert("Could not open configuration file %s : %s\n",
Willy Tarreau477ecd82010-01-03 21:12:30 +0100508 wl->s, strerror(errno));
Willy Tarreauc4382422009-12-06 13:10:44 +0100509 exit(1);
510 }
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100511 if (ret & (ERR_ABORT|ERR_FATAL))
Willy Tarreau477ecd82010-01-03 21:12:30 +0100512 Alert("Error(s) found in configuration file : %s\n", wl->s);
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100513 err_code |= ret;
Willy Tarreau058e9072009-07-20 09:30:05 +0200514 if (err_code & ERR_ABORT)
Willy Tarreau5d01a632009-06-22 16:02:30 +0200515 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200516 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200517
Willy Tarreaubb925012009-07-23 13:36:36 +0200518 err_code |= check_config_validity();
519 if (err_code & (ERR_ABORT|ERR_FATAL)) {
520 Alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200521 exit(1);
522 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200523
524 if (global.mode & MODE_CHECK) {
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200525 qfprintf(stdout, "Configuration file is valid\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200526 exit(0);
527 }
528
Willy Tarreau8280d642009-09-23 23:37:52 +0200529 /* now we know the buffer size, we can initialize the buffers */
530 init_buffer();
531
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200532 if (have_appsession)
533 appsession_init();
534
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200535 if (start_checks() < 0)
536 exit(1);
537
Willy Tarreaubaaee002006-06-26 02:48:02 +0200538 if (cfg_maxconn > 0)
539 global.maxconn = cfg_maxconn;
540
541 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +0200542 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200543 global.pidfile = strdup(cfg_pidfile);
544 }
545
546 if (global.maxconn == 0)
547 global.maxconn = DEFAULT_MAXCONN;
548
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100549 if (!global.maxpipes) {
550 /* maxpipes not specified. Count how many frontends and backends
551 * may be using splicing, and bound that to maxconn.
552 */
553 struct proxy *cur;
554 int nbfe = 0, nbbe = 0;
555
556 for (cur = proxy; cur; cur = cur->next) {
557 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
558 if (cur->cap & PR_CAP_FE)
559 nbfe += cur->maxconn;
560 if (cur->cap & PR_CAP_BE)
Willy Tarreauafb48762009-01-25 10:42:05 +0100561 nbbe += cur->fullconn ? cur->fullconn : global.maxconn;
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100562 }
563 }
564 global.maxpipes = MAX(nbfe, nbbe);
565 if (global.maxpipes > global.maxconn)
566 global.maxpipes = global.maxconn;
Willy Tarreau686ac822009-01-25 14:06:58 +0100567 global.maxpipes /= 4;
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100568 }
569
570
Willy Tarreaubaaee002006-06-26 02:48:02 +0200571 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +0100572 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200573
Willy Tarreau1db37712007-06-03 17:16:49 +0200574 if (global.tune.maxpollevents <= 0)
575 global.tune.maxpollevents = MAX_POLL_EVENTS;
576
Willy Tarreauf49d1df2009-03-01 08:35:41 +0100577 if (global.tune.maxaccept == 0) {
Willy Tarreaua0250ba2008-01-06 11:22:57 +0100578 if (global.nbproc > 1)
579 global.tune.maxaccept = 8; /* leave some conns to other processes */
580 else
Willy Tarreauf49d1df2009-03-01 08:35:41 +0100581 global.tune.maxaccept = 100; /* accept many incoming conns at once */
Willy Tarreaua0250ba2008-01-06 11:22:57 +0100582 }
583
Willy Tarreau6f4a82c2009-03-21 20:43:57 +0100584 if (global.tune.recv_enough == 0)
585 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
586
Willy Tarreau27a674e2009-08-17 07:23:33 +0200587 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
588 global.tune.maxrewrite = global.tune.bufsize / 2;
589
Willy Tarreaubaaee002006-06-26 02:48:02 +0200590 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
591 /* command line debug mode inhibits configuration mode */
592 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
593 }
594 global.mode |= (arg_mode & (MODE_DAEMON | MODE_FOREGROUND | MODE_QUIET |
Willy Tarreaufbee7132007-10-18 13:53:22 +0200595 MODE_VERBOSE | MODE_DEBUG ));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200596
597 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_QUIET))) {
598 Warning("<debug> mode incompatible with <quiet> and <daemon>. Keeping <debug> only.\n");
599 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
600 }
601
602 if ((global.nbproc > 1) && !(global.mode & MODE_DAEMON)) {
603 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
604 Warning("<nbproc> is only meaningful in daemon mode. Setting limit to 1 process.\n");
605 global.nbproc = 1;
606 }
607
608 if (global.nbproc < 1)
609 global.nbproc = 1;
610
Willy Tarreau8096de92010-02-26 11:12:27 +0100611 swap_buffer = (char *)calloc(1, global.tune.bufsize);
612
Willy Tarreau8d5d77e2009-10-18 07:25:52 +0200613 fdinfo = (struct fdinfo *)calloc(1,
614 sizeof(struct fdinfo) * (global.maxsock));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200615 fdtab = (struct fdtab *)calloc(1,
616 sizeof(struct fdtab) * (global.maxsock));
617 for (i = 0; i < global.maxsock; i++) {
618 fdtab[i].state = FD_STCLOSE;
619 }
Willy Tarreau4f60f162007-04-08 16:39:58 +0200620
Willy Tarreauef1d1f82007-04-16 00:25:25 +0200621 /*
622 * Note: we could register external pollers here.
623 * Built-in pollers have been registered before main().
624 */
Willy Tarreau4f60f162007-04-08 16:39:58 +0200625
Willy Tarreau43b78992009-01-25 15:42:27 +0100626 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200627 disable_poller("kqueue");
628
Willy Tarreau43b78992009-01-25 15:42:27 +0100629 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +0200630 disable_poller("epoll");
631
Willy Tarreau43b78992009-01-25 15:42:27 +0100632 if (!(global.tune.options & GTUNE_USE_SEPOLL))
Willy Tarreaude99e992007-04-16 00:53:59 +0200633 disable_poller("sepoll");
634
Willy Tarreau43b78992009-01-25 15:42:27 +0100635 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +0200636 disable_poller("poll");
637
Willy Tarreau43b78992009-01-25 15:42:27 +0100638 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +0200639 disable_poller("select");
640
641 /* Note: we could disable any poller by name here */
642
Willy Tarreau2ff76222007-04-09 19:29:56 +0200643 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
644 list_pollers(stderr);
645
Willy Tarreau4f60f162007-04-08 16:39:58 +0200646 if (!init_pollers()) {
Willy Tarreau2ff76222007-04-09 19:29:56 +0200647 Alert("No polling mechanism available.\n");
Willy Tarreau4f60f162007-04-08 16:39:58 +0200648 exit(1);
649 }
Willy Tarreau2ff76222007-04-09 19:29:56 +0200650 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
651 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +0200652 }
653
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +0200654 if (!global.node)
655 global.node = strdup(hostname);
656
Willy Tarreaubaaee002006-06-26 02:48:02 +0200657}
658
659void deinit(void)
660{
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200661 struct proxy *p = proxy, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200662 struct cap_hdr *h,*h_next;
663 struct server *s,*s_next;
664 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200665 struct acl_cond *cond, *condb;
666 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200667 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200668 struct switching_rule *rule, *ruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200669 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +0100670 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +0100671 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200672 struct uri_auth *uap, *ua = NULL;
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200673 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200674
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200675 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200676 while (p) {
Willy Tarreaua534fea2008-08-03 12:19:50 +0200677 free(p->id);
678 free(p->check_req);
679 free(p->cookie_name);
680 free(p->cookie_domain);
681 free(p->url_param_name);
682 free(p->capture_name);
683 free(p->monitor_uri);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200684
Willy Tarreaua534fea2008-08-03 12:19:50 +0200685 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +0200686 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200687
Willy Tarreauf4f04122010-01-28 18:10:50 +0100688 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
689 LIST_DEL(&cwl->list);
690 free(cwl->s);
691 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +0100692 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200693
Willy Tarreauf4f04122010-01-28 18:10:50 +0100694 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
695 LIST_DEL(&cwl->list);
696 free(cwl->s);
697 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +0100698 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200699
700 list_for_each_entry_safe(cond, condb, &p->block_cond, list) {
701 LIST_DEL(&cond->list);
702 prune_acl_cond(cond);
703 free(cond);
704 }
705
Willy Tarreaub80c2302007-11-30 20:51:32 +0100706 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
707 LIST_DEL(&cond->list);
708 prune_acl_cond(cond);
709 free(cond);
710 }
711
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200712 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200713 if (exp->preg) {
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200714 regfree((regex_t *)exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200715 free((regex_t *)exp->preg);
716 }
717
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200718 if (exp->replace && exp->action != ACT_SETBE)
719 free((char *)exp->replace);
720 expb = exp;
721 exp = exp->next;
722 free(expb);
723 }
724
725 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200726 if (exp->preg) {
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200727 regfree((regex_t *)exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200728 free((regex_t *)exp->preg);
729 }
730
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200731 if (exp->replace && exp->action != ACT_SETBE)
732 free((char *)exp->replace);
733 expb = exp;
734 exp = exp->next;
735 free(expb);
736 }
737
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200738 /* build a list of unique uri_auths */
739 if (!ua)
740 ua = p->uri_auth;
741 else {
742 /* check if p->uri_auth is unique */
743 for (uap = ua; uap; uap=uap->next)
744 if (uap == p->uri_auth)
745 break;
746
Willy Tarreauaccc4e12008-06-24 11:14:45 +0200747 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200748 /* add it, if it is */
749 p->uri_auth->next = ua;
750 ua = p->uri_auth;
751 }
752 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200753
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200754 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
755 LIST_DEL(&acl->list);
756 prune_acl(acl);
757 free(acl);
758 }
759
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200760 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
761 LIST_DEL(&rule->list);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200762 prune_acl_cond(rule->cond);
763 free(rule->cond);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200764 free(rule);
765 }
766
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200767 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
768 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +0100769 if (rdr->cond) {
770 prune_acl_cond(rdr->cond);
771 free(rdr->cond);
772 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200773 free(rdr->rdr_str);
774 free(rdr);
775 }
776
Willy Tarreaua534fea2008-08-03 12:19:50 +0200777 free(p->appsession_name);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200778
779 h = p->req_cap;
780 while (h) {
781 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +0200782 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +0200783 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200784 free(h);
785 h = h_next;
786 }/* end while(h) */
787
788 h = p->rsp_cap;
789 while (h) {
790 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +0200791 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +0200792 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200793 free(h);
794 h = h_next;
795 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200796
Willy Tarreaubaaee002006-06-26 02:48:02 +0200797 s = p->srv;
798 while (s) {
799 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200800
801 if (s->check) {
802 task_delete(s->check);
803 task_free(s->check);
804 }
805
Willy Tarreaua534fea2008-08-03 12:19:50 +0200806 free(s->id);
807 free(s->cookie);
Nick Chalk57b1bf72010-03-16 15:50:46 +0000808 free(s->check_data);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200809 free(s);
810 s = s_next;
811 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200812
Willy Tarreaubaaee002006-06-26 02:48:02 +0200813 l = p->listen;
814 while (l) {
815 l_next = l->next;
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +0100816 free(l->name);
817 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200818 free(l);
819 l = l_next;
820 }/* end while(l) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200821
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +0100822 free(p->desc);
823 free(p->fwdfor_hdr_name);
824
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +0100825 req_acl_free(&p->req_acl);
826
Willy Tarreaucf7f3202007-05-13 22:46:04 +0200827 pool_destroy2(p->req_cap_pool);
828 pool_destroy2(p->rsp_cap_pool);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200829 pool_destroy2(p->hdr_idx_pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100830
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200831 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200832 p = p->next;
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200833 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200834 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +0200835
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200836 while (ua) {
837 uap = ua;
838 ua = ua->next;
839
Willy Tarreaua534fea2008-08-03 12:19:50 +0200840 free(uap->uri_prefix);
841 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +0200842 free(uap->node);
843 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200844
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100845 userlist_free(uap->userlist);
846 req_acl_free(&uap->req_acl);
847
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200848 free(uap);
849 }
850
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100851 userlist_free(userlist);
852
Willy Tarreaudd815982007-10-16 12:25:14 +0200853 protocol_unbind_all();
854
Willy Tarreaua534fea2008-08-03 12:19:50 +0200855 free(global.chroot); global.chroot = NULL;
856 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +0200857 free(global.node); global.node = NULL;
858 free(global.desc); global.desc = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +0200859 free(fdtab); fdtab = NULL;
860 free(oldpids); oldpids = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200861
Willy Tarreau477ecd82010-01-03 21:12:30 +0100862 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
863 LIST_DEL(&wl->list);
864 free(wl);
865 }
866
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200867 pool_destroy2(pool2_session);
Willy Tarreau7341d942007-05-13 19:56:02 +0200868 pool_destroy2(pool2_buffer);
Willy Tarreau332f8bf2007-05-13 21:36:56 +0200869 pool_destroy2(pool2_requri);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200870 pool_destroy2(pool2_task);
Willy Tarreau086b3b42007-05-13 21:45:51 +0200871 pool_destroy2(pool2_capture);
Willy Tarreau63963c62007-05-13 21:29:55 +0200872 pool_destroy2(pool2_appsess);
Willy Tarreaue4d7e552007-05-13 20:19:55 +0200873 pool_destroy2(pool2_pendconn);
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200874 pool_destroy2(pool2_sig_handlers);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200875
876 if (have_appsession) {
Willy Tarreau63963c62007-05-13 21:29:55 +0200877 pool_destroy2(apools.serverid);
878 pool_destroy2(apools.sessid);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200879 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200880
881 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200882} /* end deinit() */
883
Willy Tarreaubb545b42010-08-25 12:58:59 +0200884/* sends the signal <sig> to all pids found in <oldpids>. Returns the number of
885 * pids the signal was correctly delivered to.
886 */
887static int tell_old_pids(int sig)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200888{
889 int p;
Willy Tarreaubb545b42010-08-25 12:58:59 +0200890 int ret = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200891 for (p = 0; p < nb_oldpids; p++)
Willy Tarreaubb545b42010-08-25 12:58:59 +0200892 if (kill(oldpids[p], sig) == 0)
893 ret++;
894 return ret;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200895}
896
Willy Tarreau4f60f162007-04-08 16:39:58 +0200897/*
898 * Runs the polling loop
899 *
900 * FIXME:
901 * - we still use 'listeners' to check whether we want to stop or not.
902 *
903 */
904void run_poll_loop()
905{
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200906 int next;
Willy Tarreau4f60f162007-04-08 16:39:58 +0200907
Willy Tarreaub0b37bc2008-06-23 14:00:57 +0200908 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +0200909 while (1) {
Willy Tarreau29857942009-05-10 09:01:21 +0200910 /* check if we caught some signals and process them */
911 signal_process_queue();
912
Willy Tarreau58b458d2008-06-29 22:40:23 +0200913 /* Check if we can expire some tasks */
914 wake_expired_tasks(&next);
915
916 /* Process a few tasks */
Willy Tarreaud825eef2007-05-12 22:35:00 +0200917 process_runnable_tasks(&next);
Willy Tarreau4f60f162007-04-08 16:39:58 +0200918
Willy Tarreau58b458d2008-06-29 22:40:23 +0200919 /* maintain all proxies in a consistent state. This should quickly
920 * become a task because it becomes expensive when there are huge
921 * numbers of proxies. */
922 maintain_proxies(&next);
923
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200924 /* stop when there's nothing left to do */
925 if (jobs == 0)
Willy Tarreau4f60f162007-04-08 16:39:58 +0200926 break;
927
Willy Tarreau58b458d2008-06-29 22:40:23 +0200928 /* The poller will ensure it returns around <next> */
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200929 cur_poller.poll(&cur_poller, next);
Willy Tarreau4f60f162007-04-08 16:39:58 +0200930 }
931}
932
933
Willy Tarreaubaaee002006-06-26 02:48:02 +0200934int main(int argc, char **argv)
935{
936 int err, retry;
937 struct rlimit limit;
938 FILE *pidfile = NULL;
939 init(argc, argv);
940
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200941 signal_register_fct(SIGQUIT, dump, SIGQUIT);
942 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
943 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200944
Willy Tarreaue437c442010-03-17 18:02:46 +0100945 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
946 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
947 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200948 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200949 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200950
951 /* We will loop at most 100 times with 10 ms delay each time.
952 * That's at most 1 second. We only send a signal to old pids
953 * if we cannot grab at least one port.
954 */
955 retry = MAX_START_RETRIES;
956 err = ERR_NONE;
957 while (retry >= 0) {
958 struct timeval w;
959 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +0100960 /* exit the loop on no error or fatal error */
961 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200962 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +0200963 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200964 break;
965
966 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
967 * listening sockets. So on those platforms, it would be wiser to
968 * simply send SIGUSR1, which will not be undoable.
969 */
Willy Tarreaubb545b42010-08-25 12:58:59 +0200970 if (tell_old_pids(SIGTTOU) == 0) {
971 /* no need to wait if we can't contact old pids */
972 retry = 0;
973 continue;
974 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200975 /* give some time to old processes to stop listening */
976 w.tv_sec = 0;
977 w.tv_usec = 10*1000;
978 select(0, NULL, NULL, NULL, &w);
979 retry--;
980 }
981
982 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +0100983 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +0200984 if (retry != MAX_START_RETRIES && nb_oldpids) {
985 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200986 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +0200987 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200988 exit(1);
989 }
990
991 if (listeners == 0) {
992 Alert("[%s.main()] No enabled listener found (check the <listen> keywords) ! Exiting.\n", argv[0]);
993 /* Note: we don't have to send anything to the old pids because we
994 * never stopped them. */
995 exit(1);
996 }
997
Willy Tarreau0a3b9d92009-02-04 17:05:23 +0100998 if ((protocol_bind_all() & ~ERR_WARN) != ERR_NONE) {
Willy Tarreaudd815982007-10-16 12:25:14 +0200999 Alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
1000 protocol_unbind_all(); /* cleanup everything we can */
1001 if (nb_oldpids)
1002 tell_old_pids(SIGTTIN);
1003 exit(1);
1004 }
1005
Willy Tarreaubaaee002006-06-26 02:48:02 +02001006 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001007 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
1008 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001009
Willy Tarreaubaaee002006-06-26 02:48:02 +02001010 /* MODE_QUIET can inhibit alerts and warnings below this line */
1011
1012 global.mode &= ~MODE_STARTING;
1013 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
1014 /* detach from the tty */
1015 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001016 }
1017
1018 /* open log & pid files before the chroot */
1019 if (global.mode & MODE_DAEMON && global.pidfile != NULL) {
1020 int pidfd;
1021 unlink(global.pidfile);
1022 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
1023 if (pidfd < 0) {
1024 Alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
1025 if (nb_oldpids)
1026 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001027 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001028 exit(1);
1029 }
1030 pidfile = fdopen(pidfd, "w");
1031 }
1032
Willy Tarreaubaaee002006-06-26 02:48:02 +02001033 /* ulimits */
1034 if (!global.rlimit_nofile)
1035 global.rlimit_nofile = global.maxsock;
1036
1037 if (global.rlimit_nofile) {
1038 limit.rlim_cur = limit.rlim_max = global.rlimit_nofile;
1039 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
1040 Warning("[%s.main()] Cannot raise FD limit to %d.\n", argv[0], global.rlimit_nofile);
1041 }
1042 }
1043
1044 if (global.rlimit_memmax) {
1045 limit.rlim_cur = limit.rlim_max =
1046 global.rlimit_memmax * 1048576 / global.nbproc;
1047#ifdef RLIMIT_AS
1048 if (setrlimit(RLIMIT_AS, &limit) == -1) {
1049 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1050 argv[0], global.rlimit_memmax);
1051 }
1052#else
1053 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
1054 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1055 argv[0], global.rlimit_memmax);
1056 }
1057#endif
1058 }
Willy Tarreau6d1a9882007-01-07 02:03:04 +01001059
Willy Tarreaub38651a2007-03-24 17:24:39 +01001060#ifdef CONFIG_HAP_CTTPROXY
1061 if (global.last_checks & LSTCHK_CTTPROXY) {
1062 int ret;
1063
1064 ret = check_cttproxy_version();
1065 if (ret < 0) {
1066 Alert("[%s.main()] Cannot enable cttproxy.\n%s",
1067 argv[0],
1068 (ret == -1) ? " Incorrect module version.\n"
1069 : " Make sure you have enough permissions and that the module is loaded.\n");
Willy Tarreaudd815982007-10-16 12:25:14 +02001070 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01001071 exit(1);
1072 }
1073 }
1074#endif
1075
1076 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
1077 Alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001078 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001079 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01001080 exit(1);
1081 }
1082
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001083 /* If the user is not root, we'll still let him try the configuration
1084 * but we inform him that unexpected behaviour may occur.
1085 */
1086 if ((global.last_checks & LSTCHK_NETADM) && getuid())
1087 Warning("[%s.main()] Some options which require full privileges"
1088 " might not work well.\n"
1089 "", argv[0]);
1090
Willy Tarreauf223cc02007-10-15 18:57:08 +02001091 /* chroot if needed */
1092 if (global.chroot != NULL) {
1093 if (chroot(global.chroot) == -1) {
1094 Alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
1095 if (nb_oldpids)
1096 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001097 protocol_unbind_all();
Willy Tarreauf223cc02007-10-15 18:57:08 +02001098 exit(1);
1099 }
1100 chdir("/");
1101 }
1102
Willy Tarreaubaaee002006-06-26 02:48:02 +02001103 if (nb_oldpids)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001104 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001105
1106 /* Note that any error at this stage will be fatal because we will not
1107 * be able to restart the old pids.
1108 */
1109
1110 /* setgid / setuid */
1111 if (global.gid && setgid(global.gid) == -1) {
1112 Alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
Willy Tarreaudd815982007-10-16 12:25:14 +02001113 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001114 exit(1);
1115 }
1116
1117 if (global.uid && setuid(global.uid) == -1) {
1118 Alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Willy Tarreaudd815982007-10-16 12:25:14 +02001119 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001120 exit(1);
1121 }
1122
1123 /* check ulimits */
1124 limit.rlim_cur = limit.rlim_max = 0;
1125 getrlimit(RLIMIT_NOFILE, &limit);
1126 if (limit.rlim_cur < global.maxsock) {
1127 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 +02001128 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001129 }
1130
1131 if (global.mode & MODE_DAEMON) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001132 struct proxy *px;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001133 int ret = 0;
1134 int proc;
1135
1136 /* the father launches the required number of processes */
1137 for (proc = 0; proc < global.nbproc; proc++) {
1138 ret = fork();
1139 if (ret < 0) {
1140 Alert("[%s.main()] Cannot fork.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001141 protocol_unbind_all();
Willy Tarreaud6803712007-10-16 07:44:56 +02001142 exit(1); /* there has been an error */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001143 }
1144 else if (ret == 0) /* child breaks here */
1145 break;
1146 if (pidfile != NULL) {
1147 fprintf(pidfile, "%d\n", ret);
1148 fflush(pidfile);
1149 }
Willy Tarreaudcd47712007-11-04 23:35:08 +01001150 relative_pid++; /* each child will get a different one */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001151 }
1152 /* close the pidfile both in children and father */
1153 if (pidfile != NULL)
1154 fclose(pidfile);
Willy Tarreaud137dd32010-08-25 12:49:05 +02001155
1156 /* We won't ever use this anymore */
1157 free(oldpids); oldpids = NULL;
1158 free(global.chroot); global.chroot = NULL;
1159 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001160
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001161 /* we might have to unbind some proxies from some processes */
1162 px = proxy;
1163 while (px != NULL) {
1164 if (px->bind_proc && px->state != PR_STSTOPPED) {
1165 if (!(px->bind_proc & (1 << proc)))
1166 stop_proxy(px);
1167 }
1168 px = px->next;
1169 }
1170
Willy Tarreaubaaee002006-06-26 02:48:02 +02001171 if (proc == global.nbproc)
1172 exit(0); /* parent must leave */
1173
1174 /* if we're NOT in QUIET mode, we should now close the 3 first FDs to ensure
1175 * that we can detach from the TTY. We MUST NOT do it in other cases since
1176 * it would have already be done, and 0-2 would have been affected to listening
1177 * sockets
1178 */
Willy Tarreau106cb762008-11-16 07:40:34 +01001179 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001180 /* detach from the tty */
1181 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreau106cb762008-11-16 07:40:34 +01001182 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001183 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
1184 }
1185 pid = getpid(); /* update child's pid */
1186 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02001187 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001188 }
1189
Willy Tarreaudd815982007-10-16 12:25:14 +02001190 protocol_enable_all();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001191 /*
1192 * That's it : the central polling loop. Run until we stop.
1193 */
1194 run_poll_loop();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001195
1196 /* Free all Hash Keys and all Hash elements */
1197 appsession_cleanup();
1198 /* Do some cleanup */
1199 deinit();
1200
1201 exit(0);
1202}
1203
1204
1205/*
1206 * Local variables:
1207 * c-indent-level: 8
1208 * c-basic-offset: 8
1209 * End:
1210 */