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Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
2 * Proxy variables and functions.
3 *
Willy Tarreau3a7d2072009-03-05 23:48:25 +01004 * Copyright 2000-2009 Willy Tarreau <w@1wt.eu>
Willy Tarreaubaaee002006-06-26 02:48:02 +02005 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 *
11 */
12
13#include <fcntl.h>
14#include <unistd.h>
Willy Tarreauc8f24f82007-11-30 18:38:35 +010015#include <string.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020016#include <sys/types.h>
17#include <sys/socket.h>
18#include <sys/stat.h>
19
Willy Tarreau2dd0d472006-06-29 17:53:05 +020020#include <common/defaults.h>
Willy Tarreau9de1bbd2008-07-09 20:34:27 +020021#include <common/cfgparse.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020022#include <common/compat.h>
Willy Tarreaue3ba5f02006-06-29 18:54:54 +020023#include <common/config.h>
Willy Tarreaud740bab2007-10-28 11:14:07 +010024#include <common/errors.h>
Willy Tarreau4d2d0982007-05-14 00:39:29 +020025#include <common/memory.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020026#include <common/time.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020027
28#include <types/global.h>
Emeric Brun5a8c0a92010-09-23 18:44:36 +020029#include <types/peers.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020030
Alexandre Cassen87ea5482007-10-11 20:48:58 +020031#include <proto/backend.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020032#include <proto/fd.h>
Willy Tarreau51aecc72009-07-12 09:47:04 +020033#include <proto/hdr_idx.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020034#include <proto/log.h>
Willy Tarreaue6b98942007-10-29 01:09:36 +010035#include <proto/protocols.h>
36#include <proto/proto_tcp.h>
Willy Tarreau39e4f622010-05-31 17:01:36 +020037#include <proto/proto_http.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020038#include <proto/proxy.h>
Willy Tarreaud0807c32010-08-27 18:26:11 +020039#include <proto/signal.h>
Emeric Brun5a8c0a92010-09-23 18:44:36 +020040#include <proto/task.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020041
42
Willy Tarreau918ff602011-07-25 16:33:49 +020043int listeners; /* # of proxy listeners, set by cfgparse */
Willy Tarreaubaaee002006-06-26 02:48:02 +020044struct proxy *proxy = NULL; /* list of all existing proxies */
Willy Tarreau53fb4ae2009-10-04 23:04:08 +020045struct eb_root used_proxy_id = EB_ROOT; /* list of proxy IDs in use */
Willy Tarreau10479e42010-12-12 14:00:34 +010046unsigned int error_snapshot_id = 0; /* global ID assigned to each error then incremented */
Willy Tarreaubaaee002006-06-26 02:48:02 +020047
Willy Tarreau977b8e42006-12-29 14:19:17 +010048/*
Willy Tarreau816eb542007-11-04 07:04:43 +010049 * This function returns a string containing a name describing capabilities to
50 * report comprehensible error messages. Specifically, it will return the words
51 * "frontend", "backend", "ruleset" when appropriate, or "proxy" for all other
52 * cases including the proxies declared in "listen" mode.
Willy Tarreau977b8e42006-12-29 14:19:17 +010053 */
Willy Tarreau816eb542007-11-04 07:04:43 +010054const char *proxy_cap_str(int cap)
Willy Tarreau977b8e42006-12-29 14:19:17 +010055{
Willy Tarreau816eb542007-11-04 07:04:43 +010056 if ((cap & PR_CAP_LISTEN) != PR_CAP_LISTEN) {
57 if (cap & PR_CAP_FE)
58 return "frontend";
59 else if (cap & PR_CAP_BE)
60 return "backend";
61 else if (cap & PR_CAP_RS)
62 return "ruleset";
63 }
64 return "proxy";
Willy Tarreau977b8e42006-12-29 14:19:17 +010065}
66
Krzysztof Piotr Oledzki6eb730d2007-11-03 23:41:58 +010067/*
68 * This function returns a string containing the mode of the proxy in a format
69 * suitable for error messages.
70 */
Krzysztof Piotr Oledzki6eb730d2007-11-03 23:41:58 +010071const char *proxy_mode_str(int mode) {
72
73 if (mode == PR_MODE_TCP)
74 return "tcp";
75 else if (mode == PR_MODE_HTTP)
76 return "http";
77 else if (mode == PR_MODE_HEALTH)
78 return "health";
79 else
80 return "unknown";
81}
82
Willy Tarreauf3950172009-10-10 18:35:51 +020083/*
84 * This function scans the list of backends and servers to retrieve the first
85 * backend and the first server with the given names, and sets them in both
86 * parameters. It returns zero if either is not found, or non-zero and sets
87 * the ones it did not found to NULL. If a NULL pointer is passed for the
88 * backend, only the pointer to the server will be updated.
89 */
90int get_backend_server(const char *bk_name, const char *sv_name,
91 struct proxy **bk, struct server **sv)
92{
93 struct proxy *p;
94 struct server *s;
Willy Tarreaucfeaa472009-10-10 22:33:08 +020095 int pid, sid;
Willy Tarreauf3950172009-10-10 18:35:51 +020096
97 *sv = NULL;
98
Willy Tarreaucfeaa472009-10-10 22:33:08 +020099 pid = 0;
100 if (*bk_name == '#')
101 pid = atoi(bk_name + 1);
102 sid = 0;
103 if (*sv_name == '#')
104 sid = atoi(sv_name + 1);
105
Willy Tarreauf3950172009-10-10 18:35:51 +0200106 for (p = proxy; p; p = p->next)
Willy Tarreaucfeaa472009-10-10 22:33:08 +0200107 if ((p->cap & PR_CAP_BE) &&
108 ((pid && p->uuid == pid) ||
109 (!pid && strcmp(p->id, bk_name) == 0)))
Willy Tarreauf3950172009-10-10 18:35:51 +0200110 break;
111 if (bk)
112 *bk = p;
113 if (!p)
114 return 0;
115
116 for (s = p->srv; s; s = s->next)
Willy Tarreaucfeaa472009-10-10 22:33:08 +0200117 if ((sid && s->puid == sid) ||
118 (!sid && strcmp(s->id, sv_name) == 0))
Willy Tarreauf3950172009-10-10 18:35:51 +0200119 break;
120 *sv = s;
121 if (!s)
122 return 0;
123 return 1;
124}
125
Willy Tarreaue219db72007-12-03 01:30:13 +0100126/* This function parses a "timeout" statement in a proxy section. It returns
127 * -1 if there is any error, 1 for a warning, otherwise zero. If it does not
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200128 * return zero, it will write an error or warning message into a preallocated
129 * buffer returned at <err>. The trailing is not be written. The function must
130 * be called with <args> pointing to the first command line word, with <proxy>
131 * pointing to the proxy being parsed, and <defpx> to the default proxy or NULL.
132 * As a special case for compatibility with older configs, it also accepts
133 * "{cli|srv|con}timeout" in args[0].
Willy Tarreaue219db72007-12-03 01:30:13 +0100134 */
Willy Tarreau9de1bbd2008-07-09 20:34:27 +0200135static int proxy_parse_timeout(char **args, int section, struct proxy *proxy,
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200136 struct proxy *defpx, char **err)
Willy Tarreaue219db72007-12-03 01:30:13 +0100137{
138 unsigned timeout;
139 int retval, cap;
140 const char *res, *name;
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200141 int *tv = NULL;
142 int *td = NULL;
Willy Tarreaue219db72007-12-03 01:30:13 +0100143
144 retval = 0;
Willy Tarreau9de1bbd2008-07-09 20:34:27 +0200145
146 /* simply skip "timeout" but remain compatible with old form */
147 if (strcmp(args[0], "timeout") == 0)
148 args++;
149
Willy Tarreaue219db72007-12-03 01:30:13 +0100150 name = args[0];
151 if (!strcmp(args[0], "client") || !strcmp(args[0], "clitimeout")) {
152 name = "client";
Willy Tarreaud7c30f92007-12-03 01:38:36 +0100153 tv = &proxy->timeout.client;
154 td = &defpx->timeout.client;
Willy Tarreaue219db72007-12-03 01:30:13 +0100155 cap = PR_CAP_FE;
156 } else if (!strcmp(args[0], "tarpit")) {
157 tv = &proxy->timeout.tarpit;
158 td = &defpx->timeout.tarpit;
Willy Tarreau51c9bde2008-01-06 13:40:03 +0100159 cap = PR_CAP_FE | PR_CAP_BE;
Willy Tarreaub16a5742010-01-10 14:46:16 +0100160 } else if (!strcmp(args[0], "http-keep-alive")) {
161 tv = &proxy->timeout.httpka;
162 td = &defpx->timeout.httpka;
163 cap = PR_CAP_FE | PR_CAP_BE;
Willy Tarreau036fae02008-01-06 13:24:40 +0100164 } else if (!strcmp(args[0], "http-request")) {
165 tv = &proxy->timeout.httpreq;
166 td = &defpx->timeout.httpreq;
Willy Tarreaucd7afc02009-07-12 10:03:17 +0200167 cap = PR_CAP_FE | PR_CAP_BE;
Willy Tarreaue219db72007-12-03 01:30:13 +0100168 } else if (!strcmp(args[0], "server") || !strcmp(args[0], "srvtimeout")) {
169 name = "server";
Willy Tarreaud7c30f92007-12-03 01:38:36 +0100170 tv = &proxy->timeout.server;
171 td = &defpx->timeout.server;
Willy Tarreaue219db72007-12-03 01:30:13 +0100172 cap = PR_CAP_BE;
173 } else if (!strcmp(args[0], "connect") || !strcmp(args[0], "contimeout")) {
174 name = "connect";
Willy Tarreaud7c30f92007-12-03 01:38:36 +0100175 tv = &proxy->timeout.connect;
176 td = &defpx->timeout.connect;
Willy Tarreaue219db72007-12-03 01:30:13 +0100177 cap = PR_CAP_BE;
Krzysztof Piotr Oledzki5259dfe2008-01-21 01:54:06 +0100178 } else if (!strcmp(args[0], "check")) {
179 tv = &proxy->timeout.check;
180 td = &defpx->timeout.check;
181 cap = PR_CAP_BE;
Willy Tarreaue219db72007-12-03 01:30:13 +0100182 } else if (!strcmp(args[0], "queue")) {
183 tv = &proxy->timeout.queue;
184 td = &defpx->timeout.queue;
185 cap = PR_CAP_BE;
Willy Tarreauce887fd2012-05-12 12:50:00 +0200186 } else if (!strcmp(args[0], "tunnel")) {
187 tv = &proxy->timeout.tunnel;
188 td = &defpx->timeout.tunnel;
189 cap = PR_CAP_BE;
Willy Tarreaue219db72007-12-03 01:30:13 +0100190 } else {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200191 memprintf(err,
192 "'timeout' supports 'client', 'server', 'connect', 'check', "
Willy Tarreauce887fd2012-05-12 12:50:00 +0200193 "'queue', 'http-keep-alive', 'http-request', 'tunnel' or 'tarpit', (got '%s')",
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200194 args[0]);
Willy Tarreaue219db72007-12-03 01:30:13 +0100195 return -1;
196 }
197
198 if (*args[1] == 0) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200199 memprintf(err, "'timeout %s' expects an integer value (in milliseconds)", name);
Willy Tarreaue219db72007-12-03 01:30:13 +0100200 return -1;
201 }
202
203 res = parse_time_err(args[1], &timeout, TIME_UNIT_MS);
204 if (res) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200205 memprintf(err, "unexpected character '%c' in 'timeout %s'", *res, name);
Willy Tarreaue219db72007-12-03 01:30:13 +0100206 return -1;
207 }
208
209 if (!(proxy->cap & cap)) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200210 memprintf(err, "'timeout %s' will be ignored because %s '%s' has no %s capability",
211 name, proxy_type_str(proxy), proxy->id,
212 (cap & PR_CAP_BE) ? "backend" : "frontend");
Willy Tarreaue219db72007-12-03 01:30:13 +0100213 retval = 1;
214 }
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200215 else if (defpx && *tv != *td) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200216 memprintf(err, "overwriting 'timeout %s' which was already specified", name);
Willy Tarreaue219db72007-12-03 01:30:13 +0100217 retval = 1;
218 }
219
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200220 *tv = MS_TO_TICKS(timeout);
Willy Tarreaue219db72007-12-03 01:30:13 +0100221 return retval;
222}
223
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100224/* This function parses a "rate-limit" statement in a proxy section. It returns
225 * -1 if there is any error, 1 for a warning, otherwise zero. If it does not
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200226 * return zero, it will write an error or warning message into a preallocated
227 * buffer returned at <err>. The function must be called with <args> pointing
228 * to the first command line word, with <proxy> pointing to the proxy being
229 * parsed, and <defpx> to the default proxy or NULL.
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100230 */
231static int proxy_parse_rate_limit(char **args, int section, struct proxy *proxy,
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200232 struct proxy *defpx, char **err)
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100233{
234 int retval, cap;
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200235 char *res;
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100236 unsigned int *tv = NULL;
237 unsigned int *td = NULL;
238 unsigned int val;
239
240 retval = 0;
241
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200242 if (strcmp(args[1], "sessions") == 0) {
Willy Tarreau13a34bd2009-05-10 18:52:49 +0200243 tv = &proxy->fe_sps_lim;
244 td = &defpx->fe_sps_lim;
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100245 cap = PR_CAP_FE;
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200246 }
247 else {
248 memprintf(err, "'%s' only supports 'sessions' (got '%s')", args[0], args[1]);
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100249 return -1;
250 }
251
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200252 if (*args[2] == 0) {
253 memprintf(err, "'%s %s' expects expects an integer value (in sessions/second)", args[0], args[1]);
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100254 return -1;
255 }
256
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200257 val = strtoul(args[2], &res, 0);
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100258 if (*res) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200259 memprintf(err, "'%s %s' : unexpected character '%c' in integer value '%s'", args[0], args[1], *res, args[2]);
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100260 return -1;
261 }
262
263 if (!(proxy->cap & cap)) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200264 memprintf(err, "%s %s will be ignored because %s '%s' has no %s capability",
265 args[0], args[1], proxy_type_str(proxy), proxy->id,
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100266 (cap & PR_CAP_BE) ? "backend" : "frontend");
267 retval = 1;
268 }
269 else if (defpx && *tv != *td) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200270 memprintf(err, "overwriting %s %s which was already specified", args[0], args[1]);
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100271 retval = 1;
272 }
273
274 *tv = val;
275 return retval;
276}
277
Krzysztof Piotr Oledzki6eb730d2007-11-03 23:41:58 +0100278/*
279 * This function finds a proxy with matching name, mode and with satisfying
280 * capabilities. It also checks if there are more matching proxies with
281 * requested name as this often leads into unexpected situations.
282 */
283
Alex Williams96532db2009-11-01 21:27:13 -0500284struct proxy *findproxy_mode(const char *name, int mode, int cap) {
Krzysztof Piotr Oledzki6eb730d2007-11-03 23:41:58 +0100285
Krzysztof Piotr Oledzkic8b16fc2008-02-18 01:26:35 +0100286 struct proxy *curproxy, *target = NULL;
Krzysztof Piotr Oledzki6eb730d2007-11-03 23:41:58 +0100287
288 for (curproxy = proxy; curproxy; curproxy = curproxy->next) {
289 if ((curproxy->cap & cap)!=cap || strcmp(curproxy->id, name))
290 continue;
291
Willy Tarreau51aecc72009-07-12 09:47:04 +0200292 if (curproxy->mode != mode &&
293 !(curproxy->mode == PR_MODE_HTTP && mode == PR_MODE_TCP)) {
Krzysztof Piotr Oledzki6eb730d2007-11-03 23:41:58 +0100294 Alert("Unable to use proxy '%s' with wrong mode, required: %s, has: %s.\n",
295 name, proxy_mode_str(mode), proxy_mode_str(curproxy->mode));
296 Alert("You may want to use 'mode %s'.\n", proxy_mode_str(mode));
297 return NULL;
298 }
299
300 if (!target) {
301 target = curproxy;
302 continue;
303 }
304
Willy Tarreau816eb542007-11-04 07:04:43 +0100305 Alert("Refusing to use duplicated proxy '%s' with overlapping capabilities: %s/%s!\n",
Krzysztof Piotr Oledzki6eb730d2007-11-03 23:41:58 +0100306 name, proxy_type_str(curproxy), proxy_type_str(target));
307
308 return NULL;
309 }
310
311 return target;
312}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200313
Willy Tarreaubc216c42011-08-02 11:25:54 +0200314/* Returns a pointer to the proxy matching either name <name>, or id <name> if
315 * <name> begins with a '#'. NULL is returned if no match is found, as well as
316 * if multiple matches are found (eg: too large capabilities mask).
317 */
Alex Williams96532db2009-11-01 21:27:13 -0500318struct proxy *findproxy(const char *name, int cap) {
319
320 struct proxy *curproxy, *target = NULL;
Willy Tarreaubc216c42011-08-02 11:25:54 +0200321 int pid = 0;
322
323 if (*name == '#')
324 pid = atoi(name + 1);
Alex Williams96532db2009-11-01 21:27:13 -0500325
326 for (curproxy = proxy; curproxy; curproxy = curproxy->next) {
Willy Tarreaubc216c42011-08-02 11:25:54 +0200327 if ((curproxy->cap & cap) != cap ||
328 (pid && curproxy->uuid != pid) ||
329 (!pid && strcmp(curproxy->id, name)))
Alex Williams96532db2009-11-01 21:27:13 -0500330 continue;
331
332 if (!target) {
333 target = curproxy;
334 continue;
335 }
336
337 return NULL;
338 }
339
340 return target;
341}
342
Willy Tarreaubaaee002006-06-26 02:48:02 +0200343/*
Krzysztof Piotr Oledzkic8b16fc2008-02-18 01:26:35 +0100344 * This function finds a server with matching name within selected proxy.
345 * It also checks if there are more matching servers with
346 * requested name as this often leads into unexpected situations.
347 */
348
349struct server *findserver(const struct proxy *px, const char *name) {
350
351 struct server *cursrv, *target = NULL;
352
353 if (!px)
354 return NULL;
355
356 for (cursrv = px->srv; cursrv; cursrv = cursrv->next) {
357 if (strcmp(cursrv->id, name))
358 continue;
359
360 if (!target) {
361 target = cursrv;
362 continue;
363 }
364
Cyril Bonté0bb519e2012-04-04 12:57:19 +0200365 Alert("Refusing to use duplicated server '%s' found in proxy: %s!\n",
Krzysztof Piotr Oledzkic8b16fc2008-02-18 01:26:35 +0100366 name, px->id);
367
368 return NULL;
369 }
370
371 return target;
372}
373
Willy Tarreauff01a212009-03-15 13:46:16 +0100374/* This function checks that the designated proxy has no http directives
375 * enabled. It will output a warning if there are, and will fix some of them.
376 * It returns the number of fatal errors encountered. This should be called
377 * at the end of the configuration parsing if the proxy is not in http mode.
378 * The <file> argument is used to construct the error message.
379 */
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200380int proxy_cfg_ensure_no_http(struct proxy *curproxy)
Willy Tarreauff01a212009-03-15 13:46:16 +0100381{
382 if (curproxy->cookie_name != NULL) {
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200383 Warning("config : cookie will be ignored for %s '%s' (needs 'mode http').\n",
384 proxy_type_str(curproxy), curproxy->id);
Willy Tarreauff01a212009-03-15 13:46:16 +0100385 }
386 if (curproxy->rsp_exp != NULL) {
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200387 Warning("config : server regular expressions will be ignored for %s '%s' (needs 'mode http').\n",
388 proxy_type_str(curproxy), curproxy->id);
Willy Tarreauff01a212009-03-15 13:46:16 +0100389 }
390 if (curproxy->req_exp != NULL) {
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200391 Warning("config : client regular expressions will be ignored for %s '%s' (needs 'mode http').\n",
392 proxy_type_str(curproxy), curproxy->id);
Willy Tarreauff01a212009-03-15 13:46:16 +0100393 }
394 if (curproxy->monitor_uri != NULL) {
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200395 Warning("config : monitor-uri will be ignored for %s '%s' (needs 'mode http').\n",
396 proxy_type_str(curproxy), curproxy->id);
Willy Tarreauff01a212009-03-15 13:46:16 +0100397 }
Willy Tarreauf3e49f92009-10-03 12:21:20 +0200398 if (curproxy->lbprm.algo & BE_LB_NEED_HTTP) {
Willy Tarreauff01a212009-03-15 13:46:16 +0100399 curproxy->lbprm.algo &= ~BE_LB_ALGO;
400 curproxy->lbprm.algo |= BE_LB_ALGO_RR;
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200401 Warning("config : Layer 7 hash not possible for %s '%s' (needs 'mode http'). Falling back to round robin.\n",
402 proxy_type_str(curproxy), curproxy->id);
Willy Tarreauff01a212009-03-15 13:46:16 +0100403 }
Willy Tarreau17804162009-11-09 21:27:51 +0100404 if (curproxy->to_log & (LW_REQ | LW_RESP)) {
405 curproxy->to_log &= ~(LW_REQ | LW_RESP);
406 Warning("config : 'option httplog' not usable with %s '%s' (needs 'mode http'). Falling back to 'option tcplog'.\n",
407 proxy_type_str(curproxy), curproxy->id);
408 }
Willy Tarreau196729e2012-05-31 19:30:26 +0200409 if (curproxy->logformat_string == default_http_log_format ||
410 curproxy->logformat_string == clf_http_log_format) {
411 curproxy->logformat_string = default_tcp_log_format;
412 Warning("config : 'option httplog' not usable with %s '%s' (needs 'mode http'). Falling back to 'option tcplog'.\n",
413 proxy_type_str(curproxy), curproxy->id);
414 }
415
Willy Tarreauff01a212009-03-15 13:46:16 +0100416 return 0;
417}
418
Willy Tarreau237250c2011-07-29 01:49:03 +0200419/* Perform the most basic initialization of a proxy :
420 * memset(), list_init(*), reset_timeouts(*).
Willy Tarreaub249e842011-09-07 18:41:08 +0200421 * Any new proxy or peer should be initialized via this function.
Willy Tarreau237250c2011-07-29 01:49:03 +0200422 */
423void init_new_proxy(struct proxy *p)
424{
425 memset(p, 0, sizeof(struct proxy));
426 LIST_INIT(&p->pendconns);
427 LIST_INIT(&p->acl);
428 LIST_INIT(&p->http_req_rules);
429 LIST_INIT(&p->block_cond);
430 LIST_INIT(&p->redirect_rules);
431 LIST_INIT(&p->mon_fail_cond);
432 LIST_INIT(&p->switching_rules);
Willy Tarreau4a5cade2012-04-05 21:09:48 +0200433 LIST_INIT(&p->server_rules);
Willy Tarreau237250c2011-07-29 01:49:03 +0200434 LIST_INIT(&p->persist_rules);
435 LIST_INIT(&p->sticking_rules);
436 LIST_INIT(&p->storersp_rules);
437 LIST_INIT(&p->tcp_req.inspect_rules);
438 LIST_INIT(&p->tcp_rep.inspect_rules);
439 LIST_INIT(&p->tcp_req.l4_rules);
440 LIST_INIT(&p->req_add);
441 LIST_INIT(&p->rsp_add);
442 LIST_INIT(&p->listener_queue);
William Lallemand0f99e342011-10-12 17:50:54 +0200443 LIST_INIT(&p->logsrvs);
William Lallemand723b73a2012-02-08 16:37:49 +0100444 LIST_INIT(&p->logformat);
William Lallemanda73203e2012-03-12 12:48:57 +0100445 LIST_INIT(&p->format_unique_id);
Willy Tarreau237250c2011-07-29 01:49:03 +0200446
447 /* Timeouts are defined as -1 */
448 proxy_reset_timeouts(p);
449 p->tcp_rep.inspect_delay = TICK_ETERNITY;
450}
451
Krzysztof Piotr Oledzkic8b16fc2008-02-18 01:26:35 +0100452/*
Willy Tarreau2ff76222007-04-09 19:29:56 +0200453 * This function creates all proxy sockets. It should be done very early,
454 * typically before privileges are dropped. The sockets will be registered
455 * but not added to any fd_set, in order not to loose them across the fork().
Willy Tarreau562515c2011-07-25 08:11:52 +0200456 * The proxies also start in READY state because they all have their listeners
Willy Tarreauf3f8c702011-07-25 07:37:28 +0200457 * bound.
Willy Tarreau2ff76222007-04-09 19:29:56 +0200458 *
459 * Its return value is composed from ERR_NONE, ERR_RETRYABLE and ERR_FATAL.
460 * Retryable errors will only be printed if <verbose> is not zero.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200461 */
462int start_proxies(int verbose)
463{
464 struct proxy *curproxy;
465 struct listener *listener;
Willy Tarreaue6b98942007-10-29 01:09:36 +0100466 int lerr, err = ERR_NONE;
467 int pxerr;
468 char msg[100];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200469
470 for (curproxy = proxy; curproxy != NULL; curproxy = curproxy->next) {
471 if (curproxy->state != PR_STNEW)
472 continue; /* already initialized */
473
474 pxerr = 0;
475 for (listener = curproxy->listen; listener != NULL; listener = listener->next) {
Willy Tarreaue6b98942007-10-29 01:09:36 +0100476 if (listener->state != LI_ASSIGNED)
477 continue; /* already started */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200478
Emeric Bruncf20bf12010-10-22 16:06:11 +0200479 lerr = listener->proto->bind(listener, msg, sizeof(msg));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200480
Willy Tarreaue6b98942007-10-29 01:09:36 +0100481 /* errors are reported if <verbose> is set or if they are fatal */
482 if (verbose || (lerr & (ERR_FATAL | ERR_ABORT))) {
483 if (lerr & ERR_ALERT)
484 Alert("Starting %s %s: %s\n",
485 proxy_type_str(curproxy), curproxy->id, msg);
486 else if (lerr & ERR_WARN)
487 Warning("Starting %s %s: %s\n",
488 proxy_type_str(curproxy), curproxy->id, msg);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200489 }
490
Willy Tarreaue6b98942007-10-29 01:09:36 +0100491 err |= lerr;
492 if (lerr & (ERR_ABORT | ERR_FATAL)) {
Willy Tarreaubaaee002006-06-26 02:48:02 +0200493 pxerr |= 1;
Willy Tarreaue6b98942007-10-29 01:09:36 +0100494 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200495 }
Willy Tarreaue6b98942007-10-29 01:09:36 +0100496 else if (lerr & ERR_CODE) {
Willy Tarreaubaaee002006-06-26 02:48:02 +0200497 pxerr |= 1;
498 continue;
499 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200500 }
501
502 if (!pxerr) {
Willy Tarreau562515c2011-07-25 08:11:52 +0200503 curproxy->state = PR_STREADY;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200504 send_log(curproxy, LOG_NOTICE, "Proxy %s started.\n", curproxy->id);
505 }
Willy Tarreaue6b98942007-10-29 01:09:36 +0100506
507 if (err & ERR_ABORT)
508 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200509 }
510
511 return err;
512}
513
514
515/*
Willy Tarreau918ff602011-07-25 16:33:49 +0200516 * This is the proxy management task. It enables proxies when there are enough
517 * free sessions, or stops them when the table is full. It is designed to be
518 * called as a task which is woken up upon stopping or when rate limiting must
519 * be enforced.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200520 */
Willy Tarreau918ff602011-07-25 16:33:49 +0200521struct task *manage_proxy(struct task *t)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200522{
Willy Tarreau918ff602011-07-25 16:33:49 +0200523 struct proxy *p = t->context;
524 int next = TICK_ETERNITY;
Willy Tarreau79584222009-03-06 09:18:27 +0100525 unsigned int wait;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200526
Willy Tarreau918ff602011-07-25 16:33:49 +0200527 /* We should periodically try to enable listeners waiting for a
528 * global resource here.
529 */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200530
Willy Tarreau918ff602011-07-25 16:33:49 +0200531 /* first, let's check if we need to stop the proxy */
532 if (unlikely(stopping && p->state != PR_STSTOPPED)) {
533 int t;
534 t = tick_remain(now_ms, p->stop_time);
535 if (t == 0) {
536 Warning("Proxy %s stopped (FE: %lld conns, BE: %lld conns).\n",
537 p->id, p->fe_counters.cum_conn, p->be_counters.cum_conn);
538 send_log(p, LOG_WARNING, "Proxy %s stopped (FE: %lld conns, BE: %lld conns).\n",
539 p->id, p->fe_counters.cum_conn, p->be_counters.cum_conn);
540 stop_proxy(p);
541 /* try to free more memory */
542 pool_gc2();
543 }
544 else {
545 next = tick_first(next, p->stop_time);
546 }
547 }
Willy Tarreauf3f8c702011-07-25 07:37:28 +0200548
Willy Tarreau918ff602011-07-25 16:33:49 +0200549 /* the rest below is just for frontends */
550 if (!(p->cap & PR_CAP_FE))
551 goto out;
Willy Tarreauf3f8c702011-07-25 07:37:28 +0200552
Willy Tarreau918ff602011-07-25 16:33:49 +0200553 /* check the various reasons we may find to block the frontend */
554 if (unlikely(p->feconn >= p->maxconn)) {
555 if (p->state == PR_STREADY)
556 p->state = PR_STFULL;
557 goto out;
558 }
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100559
Willy Tarreau918ff602011-07-25 16:33:49 +0200560 /* OK we have no reason to block, so let's unblock if we were blocking */
561 if (p->state == PR_STFULL)
562 p->state = PR_STREADY;
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100563
Willy Tarreau918ff602011-07-25 16:33:49 +0200564 if (p->fe_sps_lim &&
565 (wait = next_event_delay(&p->fe_sess_per_sec, p->fe_sps_lim, 0))) {
566 /* we're blocking because a limit was reached on the number of
567 * requests/s on the frontend. We want to re-check ASAP, which
568 * means in 1 ms before estimated expiration date, because the
569 * timer will have settled down.
570 */
571 next = tick_first(next, tick_add(now_ms, wait));
572 goto out;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200573 }
Willy Tarreau918ff602011-07-25 16:33:49 +0200574
575 /* The proxy is not limited so we can re-enable any waiting listener */
576 if (!LIST_ISEMPTY(&p->listener_queue))
577 dequeue_all_listeners(&p->listener_queue);
578 out:
579 t->expire = next;
580 task_queue(t);
581 return t;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200582}
583
584
585/*
586 * this function disables health-check servers so that the process will quickly be ignored
587 * by load balancers. Note that if a proxy was already in the PAUSED state, then its grace
588 * time will not be used since it would already not listen anymore to the socket.
589 */
590void soft_stop(void)
591{
592 struct proxy *p;
Willy Tarreaubbe11b12011-07-25 11:16:24 +0200593 struct peers *prs;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200594
595 stopping = 1;
596 p = proxy;
Willy Tarreaub0b37bc2008-06-23 14:00:57 +0200597 tv_update_date(0,1); /* else, the old time before select will be used */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200598 while (p) {
599 if (p->state != PR_STSTOPPED) {
Willy Tarreauf8fbcef2008-10-10 17:51:34 +0200600 Warning("Stopping %s %s in %d ms.\n", proxy_cap_str(p->cap), p->id, p->grace);
601 send_log(p, LOG_WARNING, "Stopping %s %s in %d ms.\n", proxy_cap_str(p->cap), p->id, p->grace);
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200602 p->stop_time = tick_add(now_ms, p->grace);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200603 }
Emeric Brun5a8c0a92010-09-23 18:44:36 +0200604 if (p->table.size && p->table.sync_task)
605 task_wakeup(p->table.sync_task, TASK_WOKEN_MSG);
606
Willy Tarreau918ff602011-07-25 16:33:49 +0200607 /* wake every proxy task up so that they can handle the stopping */
608 task_wakeup(p->task, TASK_WOKEN_MSG);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200609 p = p->next;
610 }
Willy Tarreaubbe11b12011-07-25 11:16:24 +0200611
612 prs = peers;
613 while (prs) {
614 stop_proxy((struct proxy *)prs->peers_fe);
615 prs = prs->next;
616 }
Willy Tarreaud0807c32010-08-27 18:26:11 +0200617 /* signal zero is used to broadcast the "stopping" event */
618 signal_handler(0);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200619}
620
621
Willy Tarreaube58c382011-07-24 18:28:10 +0200622/* Temporarily disables listening on all of the proxy's listeners. Upon
623 * success, the proxy enters the PR_PAUSED state. If disabling at least one
624 * listener returns an error, then the proxy state is set to PR_STERROR
Willy Tarreauce8fe252011-09-07 19:14:57 +0200625 * because we don't know how to resume from this. The function returns 0
626 * if it fails, or non-zero on success.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200627 */
Willy Tarreauce8fe252011-09-07 19:14:57 +0200628int pause_proxy(struct proxy *p)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200629{
630 struct listener *l;
Willy Tarreauce8fe252011-09-07 19:14:57 +0200631
632 if (!(p->cap & PR_CAP_FE) || p->state == PR_STERROR ||
633 p->state == PR_STSTOPPED || p->state == PR_STPAUSED)
634 return 1;
635
636 Warning("Pausing %s %s.\n", proxy_cap_str(p->cap), p->id);
637 send_log(p, LOG_WARNING, "Pausing %s %s.\n", proxy_cap_str(p->cap), p->id);
638
Willy Tarreaubaaee002006-06-26 02:48:02 +0200639 for (l = p->listen; l != NULL; l = l->next) {
Willy Tarreaube58c382011-07-24 18:28:10 +0200640 if (!pause_listener(l))
Willy Tarreaubaaee002006-06-26 02:48:02 +0200641 p->state = PR_STERROR;
642 }
Willy Tarreauce8fe252011-09-07 19:14:57 +0200643
644 if (p->state == PR_STERROR) {
645 Warning("%s %s failed to enter pause mode.\n", proxy_cap_str(p->cap), p->id);
646 send_log(p, LOG_WARNING, "%s %s failed to enter pause mode.\n", proxy_cap_str(p->cap), p->id);
647 return 0;
648 }
649
650 p->state = PR_STPAUSED;
651 return 1;
Willy Tarreauda250db2008-10-12 12:07:48 +0200652}
653
654
655/*
656 * This function completely stops a proxy and releases its listeners. It has
657 * to be called when going down in order to release the ports so that another
658 * process may bind to them. It must also be called on disabled proxies at the
659 * end of start-up. When all listeners are closed, the proxy is set to the
660 * PR_STSTOPPED state.
661 */
662void stop_proxy(struct proxy *p)
663{
664 struct listener *l;
665
666 for (l = p->listen; l != NULL; l = l->next) {
667 unbind_listener(l);
668 if (l->state >= LI_ASSIGNED) {
669 delete_listener(l);
670 listeners--;
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200671 jobs--;
Willy Tarreauda250db2008-10-12 12:07:48 +0200672 }
673 }
674 p->state = PR_STSTOPPED;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200675}
676
Willy Tarreauc03ebbf2011-09-07 21:33:14 +0200677/* This function resumes listening on the specified proxy. It scans all of its
678 * listeners and tries to enable them all. If any of them fails, the proxy is
679 * put back to the paused state. It returns 1 upon success, or zero if an error
680 * is encountered.
681 */
682int resume_proxy(struct proxy *p)
683{
684 struct listener *l;
685 int fail;
686
687 if (p->state != PR_STPAUSED)
688 return 1;
689
690 Warning("Enabling %s %s.\n", proxy_cap_str(p->cap), p->id);
691 send_log(p, LOG_WARNING, "Enabling %s %s.\n", proxy_cap_str(p->cap), p->id);
692
693 fail = 0;
694 for (l = p->listen; l != NULL; l = l->next) {
695 if (!resume_listener(l)) {
696 int port;
697
698 port = get_host_port(&l->addr);
699 if (port) {
700 Warning("Port %d busy while trying to enable %s %s.\n",
701 port, proxy_cap_str(p->cap), p->id);
702 send_log(p, LOG_WARNING, "Port %d busy while trying to enable %s %s.\n",
703 port, proxy_cap_str(p->cap), p->id);
704 }
705 else {
706 Warning("Bind on socket %d busy while trying to enable %s %s.\n",
707 l->luid, proxy_cap_str(p->cap), p->id);
708 send_log(p, LOG_WARNING, "Bind on socket %d busy while trying to enable %s %s.\n",
709 l->luid, proxy_cap_str(p->cap), p->id);
710 }
711
712 /* Another port might have been enabled. Let's stop everything. */
713 fail = 1;
714 break;
715 }
716 }
717
718 p->state = PR_STREADY;
719 if (fail) {
720 pause_proxy(p);
721 return 0;
722 }
723 return 1;
724}
725
Willy Tarreaubaaee002006-06-26 02:48:02 +0200726/*
727 * This function temporarily disables listening so that another new instance
728 * can start listening. It is designed to be called upon reception of a
729 * SIGTTOU, after which either a SIGUSR1 can be sent to completely stop
730 * the proxy, or a SIGTTIN can be sent to listen again.
731 */
732void pause_proxies(void)
733{
734 int err;
735 struct proxy *p;
Emeric Brun5a8c0a92010-09-23 18:44:36 +0200736 struct peers *prs;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200737
738 err = 0;
739 p = proxy;
Willy Tarreaub0b37bc2008-06-23 14:00:57 +0200740 tv_update_date(0,1); /* else, the old time before select will be used */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200741 while (p) {
Willy Tarreauce8fe252011-09-07 19:14:57 +0200742 err |= !pause_proxy(p);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200743 p = p->next;
744 }
Emeric Brun5a8c0a92010-09-23 18:44:36 +0200745
746 prs = peers;
747 while (prs) {
748 p = prs->peers_fe;
Willy Tarreauce8fe252011-09-07 19:14:57 +0200749 err |= !pause_proxy(p);
750 prs = prs->next;
Emeric Brun5a8c0a92010-09-23 18:44:36 +0200751 }
752
Willy Tarreaubaaee002006-06-26 02:48:02 +0200753 if (err) {
754 Warning("Some proxies refused to pause, performing soft stop now.\n");
755 send_log(p, LOG_WARNING, "Some proxies refused to pause, performing soft stop now.\n");
756 soft_stop();
757 }
758}
759
760
761/*
762 * This function reactivates listening. This can be used after a call to
763 * sig_pause(), for example when a new instance has failed starting up.
764 * It is designed to be called upon reception of a SIGTTIN.
765 */
Willy Tarreaube58c382011-07-24 18:28:10 +0200766void resume_proxies(void)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200767{
Willy Tarreauc03ebbf2011-09-07 21:33:14 +0200768 int err;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200769 struct proxy *p;
Willy Tarreauc03ebbf2011-09-07 21:33:14 +0200770 struct peers *prs;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200771
Willy Tarreauc03ebbf2011-09-07 21:33:14 +0200772 err = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200773 p = proxy;
Willy Tarreaub0b37bc2008-06-23 14:00:57 +0200774 tv_update_date(0,1); /* else, the old time before select will be used */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200775 while (p) {
Willy Tarreauc03ebbf2011-09-07 21:33:14 +0200776 err |= !resume_proxy(p);
777 p = p->next;
778 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200779
Willy Tarreauc03ebbf2011-09-07 21:33:14 +0200780 prs = peers;
781 while (prs) {
782 p = prs->peers_fe;
783 err |= !resume_proxy(p);
784 prs = prs->next;
785 }
Willy Tarreaube58c382011-07-24 18:28:10 +0200786
Willy Tarreauc03ebbf2011-09-07 21:33:14 +0200787 if (err) {
788 Warning("Some proxies refused to resume, a restart is probably needed to resume safe operations.\n");
789 send_log(p, LOG_WARNING, "Some proxies refused to resume, a restart is probably needed to resume safe operations.\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200790 }
791}
792
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200793/* Set current session's backend to <be>. Nothing is done if the
794 * session already had a backend assigned, which is indicated by
795 * s->flags & SN_BE_ASSIGNED.
796 * All flags, stats and counters which need be updated are updated.
Willy Tarreaubedb9ba2009-07-12 08:27:39 +0200797 * Returns 1 if done, 0 in case of internal error, eg: lack of resource.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200798 */
Willy Tarreaubedb9ba2009-07-12 08:27:39 +0200799int session_set_backend(struct session *s, struct proxy *be)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200800{
801 if (s->flags & SN_BE_ASSIGNED)
Willy Tarreaubedb9ba2009-07-12 08:27:39 +0200802 return 1;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200803 s->be = be;
804 be->beconn++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100805 if (be->beconn > be->be_counters.conn_max)
806 be->be_counters.conn_max = be->beconn;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200807 proxy_inc_be_ctr(be);
808
809 /* assign new parameters to the session from the new backend */
Willy Tarreauf27b5ea2009-10-03 22:01:18 +0200810 s->si[1].flags &= ~SI_FL_INDEP_STR;
811 if (be->options2 & PR_O2_INDEPSTR)
812 s->si[1].flags |= SI_FL_INDEP_STR;
813
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200814 if (be->options2 & PR_O2_RSPBUG_OK)
815 s->txn.rsp.err_pos = -1; /* let buggy responses pass */
816 s->flags |= SN_BE_ASSIGNED;
Willy Tarreau51aecc72009-07-12 09:47:04 +0200817
818 /* If the target backend requires HTTP processing, we have to allocate
819 * a struct hdr_idx for it if we did not have one.
820 */
821 if (unlikely(!s->txn.hdr_idx.v && (be->acl_requires & ACL_USE_L7_ANY))) {
Willy Tarreau34eb6712011-10-24 18:15:04 +0200822 if ((s->txn.hdr_idx.v = pool_alloc2(pool2_hdr_idx)) == NULL)
Willy Tarreau51aecc72009-07-12 09:47:04 +0200823 return 0; /* not enough memory */
Willy Tarreau39e4f622010-05-31 17:01:36 +0200824
825 /* and now initialize the HTTP transaction state */
826 http_init_txn(s);
827
Willy Tarreauac1932d2011-10-24 19:14:41 +0200828 s->txn.hdr_idx.size = global.tune.max_http_hdr;
Willy Tarreau51aecc72009-07-12 09:47:04 +0200829 hdr_idx_init(&s->txn.hdr_idx);
830 }
831
Willy Tarreau96e31212011-05-30 18:10:30 +0200832 if (be->options2 & PR_O2_NODELAY) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200833 s->req->flags |= CF_NEVER_WAIT;
834 s->rep->flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200835 }
836
Willy Tarreauc1a21672009-08-16 22:37:44 +0200837 /* We want to enable the backend-specific analysers except those which
838 * were already run as part of the frontend/listener. Note that it would
839 * be more reliable to store the list of analysers that have been run,
840 * but what we do here is OK for now.
Emeric Brun647caf12009-06-30 17:57:00 +0200841 */
Willy Tarreauc1a21672009-08-16 22:37:44 +0200842 s->req->analysers |= be->be_req_ana & ~(s->listener->analysers);
Emeric Brun647caf12009-06-30 17:57:00 +0200843
Willy Tarreaubedb9ba2009-07-12 08:27:39 +0200844 return 1;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200845}
846
Willy Tarreau9de1bbd2008-07-09 20:34:27 +0200847static struct cfg_kw_list cfg_kws = {{ },{
848 { CFG_LISTEN, "timeout", proxy_parse_timeout },
849 { CFG_LISTEN, "clitimeout", proxy_parse_timeout },
850 { CFG_LISTEN, "contimeout", proxy_parse_timeout },
851 { CFG_LISTEN, "srvtimeout", proxy_parse_timeout },
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100852 { CFG_LISTEN, "rate-limit", proxy_parse_rate_limit },
Willy Tarreau9de1bbd2008-07-09 20:34:27 +0200853 { 0, NULL, NULL },
854}};
855
856__attribute__((constructor))
857static void __proxy_module_init(void)
858{
859 cfg_register_keywords(&cfg_kws);
860}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200861
862/*
863 * Local variables:
864 * c-indent-level: 8
865 * c-basic-offset: 8
866 * End:
867 */