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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 Tarreaud1d54542012-09-12 22:58:11 +020034#include <proto/listener.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020035#include <proto/log.h>
Willy Tarreaue6b98942007-10-29 01:09:36 +010036#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 Tarreau28a47d62012-09-18 20:02:48 +0200136 struct proxy *defpx, const char *file, int line,
137 char **err)
Willy Tarreaue219db72007-12-03 01:30:13 +0100138{
139 unsigned timeout;
140 int retval, cap;
141 const char *res, *name;
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200142 int *tv = NULL;
143 int *td = NULL;
Willy Tarreaue219db72007-12-03 01:30:13 +0100144
145 retval = 0;
Willy Tarreau9de1bbd2008-07-09 20:34:27 +0200146
147 /* simply skip "timeout" but remain compatible with old form */
148 if (strcmp(args[0], "timeout") == 0)
149 args++;
150
Willy Tarreaue219db72007-12-03 01:30:13 +0100151 name = args[0];
152 if (!strcmp(args[0], "client") || !strcmp(args[0], "clitimeout")) {
153 name = "client";
Willy Tarreaud7c30f92007-12-03 01:38:36 +0100154 tv = &proxy->timeout.client;
155 td = &defpx->timeout.client;
Willy Tarreaue219db72007-12-03 01:30:13 +0100156 cap = PR_CAP_FE;
157 } else if (!strcmp(args[0], "tarpit")) {
158 tv = &proxy->timeout.tarpit;
159 td = &defpx->timeout.tarpit;
Willy Tarreau51c9bde2008-01-06 13:40:03 +0100160 cap = PR_CAP_FE | PR_CAP_BE;
Willy Tarreaub16a5742010-01-10 14:46:16 +0100161 } else if (!strcmp(args[0], "http-keep-alive")) {
162 tv = &proxy->timeout.httpka;
163 td = &defpx->timeout.httpka;
164 cap = PR_CAP_FE | PR_CAP_BE;
Willy Tarreau036fae02008-01-06 13:24:40 +0100165 } else if (!strcmp(args[0], "http-request")) {
166 tv = &proxy->timeout.httpreq;
167 td = &defpx->timeout.httpreq;
Willy Tarreaucd7afc02009-07-12 10:03:17 +0200168 cap = PR_CAP_FE | PR_CAP_BE;
Willy Tarreaue219db72007-12-03 01:30:13 +0100169 } else if (!strcmp(args[0], "server") || !strcmp(args[0], "srvtimeout")) {
170 name = "server";
Willy Tarreaud7c30f92007-12-03 01:38:36 +0100171 tv = &proxy->timeout.server;
172 td = &defpx->timeout.server;
Willy Tarreaue219db72007-12-03 01:30:13 +0100173 cap = PR_CAP_BE;
174 } else if (!strcmp(args[0], "connect") || !strcmp(args[0], "contimeout")) {
175 name = "connect";
Willy Tarreaud7c30f92007-12-03 01:38:36 +0100176 tv = &proxy->timeout.connect;
177 td = &defpx->timeout.connect;
Willy Tarreaue219db72007-12-03 01:30:13 +0100178 cap = PR_CAP_BE;
Krzysztof Piotr Oledzki5259dfe2008-01-21 01:54:06 +0100179 } else if (!strcmp(args[0], "check")) {
180 tv = &proxy->timeout.check;
181 td = &defpx->timeout.check;
182 cap = PR_CAP_BE;
Willy Tarreaue219db72007-12-03 01:30:13 +0100183 } else if (!strcmp(args[0], "queue")) {
184 tv = &proxy->timeout.queue;
185 td = &defpx->timeout.queue;
186 cap = PR_CAP_BE;
Willy Tarreauce887fd2012-05-12 12:50:00 +0200187 } else if (!strcmp(args[0], "tunnel")) {
188 tv = &proxy->timeout.tunnel;
189 td = &defpx->timeout.tunnel;
190 cap = PR_CAP_BE;
Willy Tarreaue219db72007-12-03 01:30:13 +0100191 } else {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200192 memprintf(err,
193 "'timeout' supports 'client', 'server', 'connect', 'check', "
Willy Tarreauce887fd2012-05-12 12:50:00 +0200194 "'queue', 'http-keep-alive', 'http-request', 'tunnel' or 'tarpit', (got '%s')",
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200195 args[0]);
Willy Tarreaue219db72007-12-03 01:30:13 +0100196 return -1;
197 }
198
199 if (*args[1] == 0) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200200 memprintf(err, "'timeout %s' expects an integer value (in milliseconds)", name);
Willy Tarreaue219db72007-12-03 01:30:13 +0100201 return -1;
202 }
203
204 res = parse_time_err(args[1], &timeout, TIME_UNIT_MS);
205 if (res) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200206 memprintf(err, "unexpected character '%c' in 'timeout %s'", *res, name);
Willy Tarreaue219db72007-12-03 01:30:13 +0100207 return -1;
208 }
209
210 if (!(proxy->cap & cap)) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200211 memprintf(err, "'timeout %s' will be ignored because %s '%s' has no %s capability",
212 name, proxy_type_str(proxy), proxy->id,
213 (cap & PR_CAP_BE) ? "backend" : "frontend");
Willy Tarreaue219db72007-12-03 01:30:13 +0100214 retval = 1;
215 }
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200216 else if (defpx && *tv != *td) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200217 memprintf(err, "overwriting 'timeout %s' which was already specified", name);
Willy Tarreaue219db72007-12-03 01:30:13 +0100218 retval = 1;
219 }
220
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200221 *tv = MS_TO_TICKS(timeout);
Willy Tarreaue219db72007-12-03 01:30:13 +0100222 return retval;
223}
224
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100225/* This function parses a "rate-limit" statement in a proxy section. It returns
226 * -1 if there is any error, 1 for a warning, otherwise zero. If it does not
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200227 * return zero, it will write an error or warning message into a preallocated
228 * buffer returned at <err>. The function must be called with <args> pointing
229 * to the first command line word, with <proxy> pointing to the proxy being
230 * parsed, and <defpx> to the default proxy or NULL.
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100231 */
232static int proxy_parse_rate_limit(char **args, int section, struct proxy *proxy,
Willy Tarreau28a47d62012-09-18 20:02:48 +0200233 struct proxy *defpx, const char *file, int line,
234 char **err)
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100235{
236 int retval, cap;
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200237 char *res;
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100238 unsigned int *tv = NULL;
239 unsigned int *td = NULL;
240 unsigned int val;
241
242 retval = 0;
243
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200244 if (strcmp(args[1], "sessions") == 0) {
Willy Tarreau13a34bd2009-05-10 18:52:49 +0200245 tv = &proxy->fe_sps_lim;
246 td = &defpx->fe_sps_lim;
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100247 cap = PR_CAP_FE;
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200248 }
249 else {
250 memprintf(err, "'%s' only supports 'sessions' (got '%s')", args[0], args[1]);
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100251 return -1;
252 }
253
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200254 if (*args[2] == 0) {
255 memprintf(err, "'%s %s' expects expects an integer value (in sessions/second)", args[0], args[1]);
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100256 return -1;
257 }
258
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200259 val = strtoul(args[2], &res, 0);
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100260 if (*res) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200261 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 +0100262 return -1;
263 }
264
265 if (!(proxy->cap & cap)) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200266 memprintf(err, "%s %s will be ignored because %s '%s' has no %s capability",
267 args[0], args[1], proxy_type_str(proxy), proxy->id,
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100268 (cap & PR_CAP_BE) ? "backend" : "frontend");
269 retval = 1;
270 }
271 else if (defpx && *tv != *td) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200272 memprintf(err, "overwriting %s %s which was already specified", args[0], args[1]);
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100273 retval = 1;
274 }
275
276 *tv = val;
277 return retval;
278}
279
Krzysztof Piotr Oledzki6eb730d2007-11-03 23:41:58 +0100280/*
281 * This function finds a proxy with matching name, mode and with satisfying
282 * capabilities. It also checks if there are more matching proxies with
283 * requested name as this often leads into unexpected situations.
284 */
285
Alex Williams96532db2009-11-01 21:27:13 -0500286struct proxy *findproxy_mode(const char *name, int mode, int cap) {
Krzysztof Piotr Oledzki6eb730d2007-11-03 23:41:58 +0100287
Krzysztof Piotr Oledzkic8b16fc2008-02-18 01:26:35 +0100288 struct proxy *curproxy, *target = NULL;
Krzysztof Piotr Oledzki6eb730d2007-11-03 23:41:58 +0100289
290 for (curproxy = proxy; curproxy; curproxy = curproxy->next) {
291 if ((curproxy->cap & cap)!=cap || strcmp(curproxy->id, name))
292 continue;
293
Willy Tarreau51aecc72009-07-12 09:47:04 +0200294 if (curproxy->mode != mode &&
295 !(curproxy->mode == PR_MODE_HTTP && mode == PR_MODE_TCP)) {
Krzysztof Piotr Oledzki6eb730d2007-11-03 23:41:58 +0100296 Alert("Unable to use proxy '%s' with wrong mode, required: %s, has: %s.\n",
297 name, proxy_mode_str(mode), proxy_mode_str(curproxy->mode));
298 Alert("You may want to use 'mode %s'.\n", proxy_mode_str(mode));
299 return NULL;
300 }
301
302 if (!target) {
303 target = curproxy;
304 continue;
305 }
306
Willy Tarreau816eb542007-11-04 07:04:43 +0100307 Alert("Refusing to use duplicated proxy '%s' with overlapping capabilities: %s/%s!\n",
Krzysztof Piotr Oledzki6eb730d2007-11-03 23:41:58 +0100308 name, proxy_type_str(curproxy), proxy_type_str(target));
309
310 return NULL;
311 }
312
313 return target;
314}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200315
Willy Tarreaubc216c42011-08-02 11:25:54 +0200316/* Returns a pointer to the proxy matching either name <name>, or id <name> if
317 * <name> begins with a '#'. NULL is returned if no match is found, as well as
318 * if multiple matches are found (eg: too large capabilities mask).
319 */
Alex Williams96532db2009-11-01 21:27:13 -0500320struct proxy *findproxy(const char *name, int cap) {
321
322 struct proxy *curproxy, *target = NULL;
Willy Tarreaubc216c42011-08-02 11:25:54 +0200323 int pid = 0;
324
325 if (*name == '#')
326 pid = atoi(name + 1);
Alex Williams96532db2009-11-01 21:27:13 -0500327
328 for (curproxy = proxy; curproxy; curproxy = curproxy->next) {
Willy Tarreaubc216c42011-08-02 11:25:54 +0200329 if ((curproxy->cap & cap) != cap ||
330 (pid && curproxy->uuid != pid) ||
331 (!pid && strcmp(curproxy->id, name)))
Alex Williams96532db2009-11-01 21:27:13 -0500332 continue;
333
334 if (!target) {
335 target = curproxy;
336 continue;
337 }
338
339 return NULL;
340 }
341
342 return target;
343}
344
Willy Tarreaubaaee002006-06-26 02:48:02 +0200345/*
Krzysztof Piotr Oledzkic8b16fc2008-02-18 01:26:35 +0100346 * This function finds a server with matching name within selected proxy.
347 * It also checks if there are more matching servers with
348 * requested name as this often leads into unexpected situations.
349 */
350
351struct server *findserver(const struct proxy *px, const char *name) {
352
353 struct server *cursrv, *target = NULL;
354
355 if (!px)
356 return NULL;
357
358 for (cursrv = px->srv; cursrv; cursrv = cursrv->next) {
359 if (strcmp(cursrv->id, name))
360 continue;
361
362 if (!target) {
363 target = cursrv;
364 continue;
365 }
366
Cyril Bonté0bb519e2012-04-04 12:57:19 +0200367 Alert("Refusing to use duplicated server '%s' found in proxy: %s!\n",
Krzysztof Piotr Oledzkic8b16fc2008-02-18 01:26:35 +0100368 name, px->id);
369
370 return NULL;
371 }
372
373 return target;
374}
375
Willy Tarreauff01a212009-03-15 13:46:16 +0100376/* This function checks that the designated proxy has no http directives
377 * enabled. It will output a warning if there are, and will fix some of them.
378 * It returns the number of fatal errors encountered. This should be called
379 * at the end of the configuration parsing if the proxy is not in http mode.
380 * The <file> argument is used to construct the error message.
381 */
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200382int proxy_cfg_ensure_no_http(struct proxy *curproxy)
Willy Tarreauff01a212009-03-15 13:46:16 +0100383{
384 if (curproxy->cookie_name != NULL) {
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200385 Warning("config : cookie will be ignored for %s '%s' (needs 'mode http').\n",
386 proxy_type_str(curproxy), curproxy->id);
Willy Tarreauff01a212009-03-15 13:46:16 +0100387 }
388 if (curproxy->rsp_exp != NULL) {
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200389 Warning("config : server regular expressions will be ignored for %s '%s' (needs 'mode http').\n",
390 proxy_type_str(curproxy), curproxy->id);
Willy Tarreauff01a212009-03-15 13:46:16 +0100391 }
392 if (curproxy->req_exp != NULL) {
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200393 Warning("config : client regular expressions will be ignored for %s '%s' (needs 'mode http').\n",
394 proxy_type_str(curproxy), curproxy->id);
Willy Tarreauff01a212009-03-15 13:46:16 +0100395 }
396 if (curproxy->monitor_uri != NULL) {
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200397 Warning("config : monitor-uri will be ignored for %s '%s' (needs 'mode http').\n",
398 proxy_type_str(curproxy), curproxy->id);
Willy Tarreauff01a212009-03-15 13:46:16 +0100399 }
Willy Tarreauf3e49f92009-10-03 12:21:20 +0200400 if (curproxy->lbprm.algo & BE_LB_NEED_HTTP) {
Willy Tarreauff01a212009-03-15 13:46:16 +0100401 curproxy->lbprm.algo &= ~BE_LB_ALGO;
402 curproxy->lbprm.algo |= BE_LB_ALGO_RR;
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200403 Warning("config : Layer 7 hash not possible for %s '%s' (needs 'mode http'). Falling back to round robin.\n",
404 proxy_type_str(curproxy), curproxy->id);
Willy Tarreauff01a212009-03-15 13:46:16 +0100405 }
Willy Tarreau17804162009-11-09 21:27:51 +0100406 if (curproxy->to_log & (LW_REQ | LW_RESP)) {
407 curproxy->to_log &= ~(LW_REQ | LW_RESP);
408 Warning("config : 'option httplog' not usable with %s '%s' (needs 'mode http'). Falling back to 'option tcplog'.\n",
409 proxy_type_str(curproxy), curproxy->id);
410 }
Willy Tarreau196729e2012-05-31 19:30:26 +0200411 if (curproxy->logformat_string == default_http_log_format ||
412 curproxy->logformat_string == clf_http_log_format) {
413 curproxy->logformat_string = default_tcp_log_format;
414 Warning("config : 'option httplog' not usable with %s '%s' (needs 'mode http'). Falling back to 'option tcplog'.\n",
415 proxy_type_str(curproxy), curproxy->id);
416 }
417
Willy Tarreauff01a212009-03-15 13:46:16 +0100418 return 0;
419}
420
Willy Tarreau237250c2011-07-29 01:49:03 +0200421/* Perform the most basic initialization of a proxy :
422 * memset(), list_init(*), reset_timeouts(*).
Willy Tarreaub249e842011-09-07 18:41:08 +0200423 * Any new proxy or peer should be initialized via this function.
Willy Tarreau237250c2011-07-29 01:49:03 +0200424 */
425void init_new_proxy(struct proxy *p)
426{
427 memset(p, 0, sizeof(struct proxy));
428 LIST_INIT(&p->pendconns);
429 LIST_INIT(&p->acl);
430 LIST_INIT(&p->http_req_rules);
431 LIST_INIT(&p->block_cond);
432 LIST_INIT(&p->redirect_rules);
433 LIST_INIT(&p->mon_fail_cond);
434 LIST_INIT(&p->switching_rules);
Willy Tarreau4a5cade2012-04-05 21:09:48 +0200435 LIST_INIT(&p->server_rules);
Willy Tarreau237250c2011-07-29 01:49:03 +0200436 LIST_INIT(&p->persist_rules);
437 LIST_INIT(&p->sticking_rules);
438 LIST_INIT(&p->storersp_rules);
439 LIST_INIT(&p->tcp_req.inspect_rules);
440 LIST_INIT(&p->tcp_rep.inspect_rules);
441 LIST_INIT(&p->tcp_req.l4_rules);
442 LIST_INIT(&p->req_add);
443 LIST_INIT(&p->rsp_add);
444 LIST_INIT(&p->listener_queue);
William Lallemand0f99e342011-10-12 17:50:54 +0200445 LIST_INIT(&p->logsrvs);
William Lallemand723b73a2012-02-08 16:37:49 +0100446 LIST_INIT(&p->logformat);
William Lallemanda73203e2012-03-12 12:48:57 +0100447 LIST_INIT(&p->format_unique_id);
Willy Tarreau2a65ff02012-09-13 17:54:29 +0200448 LIST_INIT(&p->conf.bind);
Willy Tarreau4348fad2012-09-20 16:48:07 +0200449 LIST_INIT(&p->conf.listeners);
Willy Tarreau237250c2011-07-29 01:49:03 +0200450
451 /* Timeouts are defined as -1 */
452 proxy_reset_timeouts(p);
453 p->tcp_rep.inspect_delay = TICK_ETERNITY;
454}
455
Krzysztof Piotr Oledzkic8b16fc2008-02-18 01:26:35 +0100456/*
Willy Tarreau2ff76222007-04-09 19:29:56 +0200457 * This function creates all proxy sockets. It should be done very early,
458 * typically before privileges are dropped. The sockets will be registered
459 * but not added to any fd_set, in order not to loose them across the fork().
Willy Tarreau562515c2011-07-25 08:11:52 +0200460 * The proxies also start in READY state because they all have their listeners
Willy Tarreauf3f8c702011-07-25 07:37:28 +0200461 * bound.
Willy Tarreau2ff76222007-04-09 19:29:56 +0200462 *
463 * Its return value is composed from ERR_NONE, ERR_RETRYABLE and ERR_FATAL.
464 * Retryable errors will only be printed if <verbose> is not zero.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200465 */
466int start_proxies(int verbose)
467{
468 struct proxy *curproxy;
469 struct listener *listener;
Willy Tarreaue6b98942007-10-29 01:09:36 +0100470 int lerr, err = ERR_NONE;
471 int pxerr;
472 char msg[100];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200473
474 for (curproxy = proxy; curproxy != NULL; curproxy = curproxy->next) {
475 if (curproxy->state != PR_STNEW)
476 continue; /* already initialized */
477
478 pxerr = 0;
Willy Tarreau4348fad2012-09-20 16:48:07 +0200479 list_for_each_entry(listener, &curproxy->conf.listeners, by_fe) {
Willy Tarreaue6b98942007-10-29 01:09:36 +0100480 if (listener->state != LI_ASSIGNED)
481 continue; /* already started */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200482
Emeric Bruncf20bf12010-10-22 16:06:11 +0200483 lerr = listener->proto->bind(listener, msg, sizeof(msg));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200484
Willy Tarreaue6b98942007-10-29 01:09:36 +0100485 /* errors are reported if <verbose> is set or if they are fatal */
486 if (verbose || (lerr & (ERR_FATAL | ERR_ABORT))) {
487 if (lerr & ERR_ALERT)
488 Alert("Starting %s %s: %s\n",
489 proxy_type_str(curproxy), curproxy->id, msg);
490 else if (lerr & ERR_WARN)
491 Warning("Starting %s %s: %s\n",
492 proxy_type_str(curproxy), curproxy->id, msg);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200493 }
494
Willy Tarreaue6b98942007-10-29 01:09:36 +0100495 err |= lerr;
496 if (lerr & (ERR_ABORT | ERR_FATAL)) {
Willy Tarreaubaaee002006-06-26 02:48:02 +0200497 pxerr |= 1;
Willy Tarreaue6b98942007-10-29 01:09:36 +0100498 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200499 }
Willy Tarreaue6b98942007-10-29 01:09:36 +0100500 else if (lerr & ERR_CODE) {
Willy Tarreaubaaee002006-06-26 02:48:02 +0200501 pxerr |= 1;
502 continue;
503 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200504 }
505
506 if (!pxerr) {
Willy Tarreau562515c2011-07-25 08:11:52 +0200507 curproxy->state = PR_STREADY;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200508 send_log(curproxy, LOG_NOTICE, "Proxy %s started.\n", curproxy->id);
509 }
Willy Tarreaue6b98942007-10-29 01:09:36 +0100510
511 if (err & ERR_ABORT)
512 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200513 }
514
515 return err;
516}
517
518
519/*
Willy Tarreau918ff602011-07-25 16:33:49 +0200520 * This is the proxy management task. It enables proxies when there are enough
521 * free sessions, or stops them when the table is full. It is designed to be
522 * called as a task which is woken up upon stopping or when rate limiting must
523 * be enforced.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200524 */
Willy Tarreau918ff602011-07-25 16:33:49 +0200525struct task *manage_proxy(struct task *t)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200526{
Willy Tarreau918ff602011-07-25 16:33:49 +0200527 struct proxy *p = t->context;
528 int next = TICK_ETERNITY;
Willy Tarreau79584222009-03-06 09:18:27 +0100529 unsigned int wait;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200530
Willy Tarreau918ff602011-07-25 16:33:49 +0200531 /* We should periodically try to enable listeners waiting for a
532 * global resource here.
533 */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200534
Willy Tarreau918ff602011-07-25 16:33:49 +0200535 /* first, let's check if we need to stop the proxy */
536 if (unlikely(stopping && p->state != PR_STSTOPPED)) {
537 int t;
538 t = tick_remain(now_ms, p->stop_time);
539 if (t == 0) {
540 Warning("Proxy %s stopped (FE: %lld conns, BE: %lld conns).\n",
541 p->id, p->fe_counters.cum_conn, p->be_counters.cum_conn);
542 send_log(p, LOG_WARNING, "Proxy %s stopped (FE: %lld conns, BE: %lld conns).\n",
543 p->id, p->fe_counters.cum_conn, p->be_counters.cum_conn);
544 stop_proxy(p);
545 /* try to free more memory */
546 pool_gc2();
547 }
548 else {
549 next = tick_first(next, p->stop_time);
550 }
551 }
Willy Tarreauf3f8c702011-07-25 07:37:28 +0200552
Willy Tarreau918ff602011-07-25 16:33:49 +0200553 /* the rest below is just for frontends */
554 if (!(p->cap & PR_CAP_FE))
555 goto out;
Willy Tarreauf3f8c702011-07-25 07:37:28 +0200556
Willy Tarreau918ff602011-07-25 16:33:49 +0200557 /* check the various reasons we may find to block the frontend */
558 if (unlikely(p->feconn >= p->maxconn)) {
559 if (p->state == PR_STREADY)
560 p->state = PR_STFULL;
561 goto out;
562 }
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100563
Willy Tarreau918ff602011-07-25 16:33:49 +0200564 /* OK we have no reason to block, so let's unblock if we were blocking */
565 if (p->state == PR_STFULL)
566 p->state = PR_STREADY;
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100567
Willy Tarreau918ff602011-07-25 16:33:49 +0200568 if (p->fe_sps_lim &&
569 (wait = next_event_delay(&p->fe_sess_per_sec, p->fe_sps_lim, 0))) {
570 /* we're blocking because a limit was reached on the number of
571 * requests/s on the frontend. We want to re-check ASAP, which
572 * means in 1 ms before estimated expiration date, because the
573 * timer will have settled down.
574 */
575 next = tick_first(next, tick_add(now_ms, wait));
576 goto out;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200577 }
Willy Tarreau918ff602011-07-25 16:33:49 +0200578
579 /* The proxy is not limited so we can re-enable any waiting listener */
580 if (!LIST_ISEMPTY(&p->listener_queue))
581 dequeue_all_listeners(&p->listener_queue);
582 out:
583 t->expire = next;
584 task_queue(t);
585 return t;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200586}
587
588
589/*
590 * this function disables health-check servers so that the process will quickly be ignored
591 * by load balancers. Note that if a proxy was already in the PAUSED state, then its grace
592 * time will not be used since it would already not listen anymore to the socket.
593 */
594void soft_stop(void)
595{
596 struct proxy *p;
Willy Tarreaubbe11b12011-07-25 11:16:24 +0200597 struct peers *prs;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200598
599 stopping = 1;
600 p = proxy;
Willy Tarreaub0b37bc2008-06-23 14:00:57 +0200601 tv_update_date(0,1); /* else, the old time before select will be used */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200602 while (p) {
603 if (p->state != PR_STSTOPPED) {
Willy Tarreauf8fbcef2008-10-10 17:51:34 +0200604 Warning("Stopping %s %s in %d ms.\n", proxy_cap_str(p->cap), p->id, p->grace);
605 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 +0200606 p->stop_time = tick_add(now_ms, p->grace);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200607 }
Emeric Brun5a8c0a92010-09-23 18:44:36 +0200608 if (p->table.size && p->table.sync_task)
609 task_wakeup(p->table.sync_task, TASK_WOKEN_MSG);
610
Willy Tarreau918ff602011-07-25 16:33:49 +0200611 /* wake every proxy task up so that they can handle the stopping */
612 task_wakeup(p->task, TASK_WOKEN_MSG);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200613 p = p->next;
614 }
Willy Tarreaubbe11b12011-07-25 11:16:24 +0200615
616 prs = peers;
617 while (prs) {
618 stop_proxy((struct proxy *)prs->peers_fe);
619 prs = prs->next;
620 }
Willy Tarreaud0807c32010-08-27 18:26:11 +0200621 /* signal zero is used to broadcast the "stopping" event */
622 signal_handler(0);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200623}
624
625
Willy Tarreaube58c382011-07-24 18:28:10 +0200626/* Temporarily disables listening on all of the proxy's listeners. Upon
627 * success, the proxy enters the PR_PAUSED state. If disabling at least one
628 * listener returns an error, then the proxy state is set to PR_STERROR
Willy Tarreauce8fe252011-09-07 19:14:57 +0200629 * because we don't know how to resume from this. The function returns 0
630 * if it fails, or non-zero on success.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200631 */
Willy Tarreauce8fe252011-09-07 19:14:57 +0200632int pause_proxy(struct proxy *p)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200633{
634 struct listener *l;
Willy Tarreauce8fe252011-09-07 19:14:57 +0200635
636 if (!(p->cap & PR_CAP_FE) || p->state == PR_STERROR ||
637 p->state == PR_STSTOPPED || p->state == PR_STPAUSED)
638 return 1;
639
640 Warning("Pausing %s %s.\n", proxy_cap_str(p->cap), p->id);
641 send_log(p, LOG_WARNING, "Pausing %s %s.\n", proxy_cap_str(p->cap), p->id);
642
Willy Tarreau4348fad2012-09-20 16:48:07 +0200643 list_for_each_entry(l, &p->conf.listeners, by_fe) {
Willy Tarreaube58c382011-07-24 18:28:10 +0200644 if (!pause_listener(l))
Willy Tarreaubaaee002006-06-26 02:48:02 +0200645 p->state = PR_STERROR;
646 }
Willy Tarreauce8fe252011-09-07 19:14:57 +0200647
648 if (p->state == PR_STERROR) {
649 Warning("%s %s failed to enter pause mode.\n", proxy_cap_str(p->cap), p->id);
650 send_log(p, LOG_WARNING, "%s %s failed to enter pause mode.\n", proxy_cap_str(p->cap), p->id);
651 return 0;
652 }
653
654 p->state = PR_STPAUSED;
655 return 1;
Willy Tarreauda250db2008-10-12 12:07:48 +0200656}
657
658
659/*
660 * This function completely stops a proxy and releases its listeners. It has
661 * to be called when going down in order to release the ports so that another
662 * process may bind to them. It must also be called on disabled proxies at the
663 * end of start-up. When all listeners are closed, the proxy is set to the
664 * PR_STSTOPPED state.
665 */
666void stop_proxy(struct proxy *p)
667{
668 struct listener *l;
669
Willy Tarreau4348fad2012-09-20 16:48:07 +0200670 list_for_each_entry(l, &p->conf.listeners, by_fe) {
Willy Tarreauda250db2008-10-12 12:07:48 +0200671 unbind_listener(l);
672 if (l->state >= LI_ASSIGNED) {
673 delete_listener(l);
674 listeners--;
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200675 jobs--;
Willy Tarreauda250db2008-10-12 12:07:48 +0200676 }
677 }
678 p->state = PR_STSTOPPED;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200679}
680
Willy Tarreauc03ebbf2011-09-07 21:33:14 +0200681/* This function resumes listening on the specified proxy. It scans all of its
682 * listeners and tries to enable them all. If any of them fails, the proxy is
683 * put back to the paused state. It returns 1 upon success, or zero if an error
684 * is encountered.
685 */
686int resume_proxy(struct proxy *p)
687{
688 struct listener *l;
689 int fail;
690
691 if (p->state != PR_STPAUSED)
692 return 1;
693
694 Warning("Enabling %s %s.\n", proxy_cap_str(p->cap), p->id);
695 send_log(p, LOG_WARNING, "Enabling %s %s.\n", proxy_cap_str(p->cap), p->id);
696
697 fail = 0;
Willy Tarreau4348fad2012-09-20 16:48:07 +0200698 list_for_each_entry(l, &p->conf.listeners, by_fe) {
Willy Tarreauc03ebbf2011-09-07 21:33:14 +0200699 if (!resume_listener(l)) {
700 int port;
701
702 port = get_host_port(&l->addr);
703 if (port) {
704 Warning("Port %d busy while trying to enable %s %s.\n",
705 port, proxy_cap_str(p->cap), p->id);
706 send_log(p, LOG_WARNING, "Port %d busy while trying to enable %s %s.\n",
707 port, proxy_cap_str(p->cap), p->id);
708 }
709 else {
710 Warning("Bind on socket %d busy while trying to enable %s %s.\n",
711 l->luid, proxy_cap_str(p->cap), p->id);
712 send_log(p, LOG_WARNING, "Bind on socket %d busy while trying to enable %s %s.\n",
713 l->luid, proxy_cap_str(p->cap), p->id);
714 }
715
716 /* Another port might have been enabled. Let's stop everything. */
717 fail = 1;
718 break;
719 }
720 }
721
722 p->state = PR_STREADY;
723 if (fail) {
724 pause_proxy(p);
725 return 0;
726 }
727 return 1;
728}
729
Willy Tarreaubaaee002006-06-26 02:48:02 +0200730/*
731 * This function temporarily disables listening so that another new instance
732 * can start listening. It is designed to be called upon reception of a
733 * SIGTTOU, after which either a SIGUSR1 can be sent to completely stop
734 * the proxy, or a SIGTTIN can be sent to listen again.
735 */
736void pause_proxies(void)
737{
738 int err;
739 struct proxy *p;
Emeric Brun5a8c0a92010-09-23 18:44:36 +0200740 struct peers *prs;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200741
742 err = 0;
743 p = proxy;
Willy Tarreaub0b37bc2008-06-23 14:00:57 +0200744 tv_update_date(0,1); /* else, the old time before select will be used */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200745 while (p) {
Willy Tarreauce8fe252011-09-07 19:14:57 +0200746 err |= !pause_proxy(p);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200747 p = p->next;
748 }
Emeric Brun5a8c0a92010-09-23 18:44:36 +0200749
750 prs = peers;
751 while (prs) {
752 p = prs->peers_fe;
Willy Tarreauce8fe252011-09-07 19:14:57 +0200753 err |= !pause_proxy(p);
754 prs = prs->next;
Emeric Brun5a8c0a92010-09-23 18:44:36 +0200755 }
756
Willy Tarreaubaaee002006-06-26 02:48:02 +0200757 if (err) {
758 Warning("Some proxies refused to pause, performing soft stop now.\n");
759 send_log(p, LOG_WARNING, "Some proxies refused to pause, performing soft stop now.\n");
760 soft_stop();
761 }
762}
763
764
765/*
766 * This function reactivates listening. This can be used after a call to
767 * sig_pause(), for example when a new instance has failed starting up.
768 * It is designed to be called upon reception of a SIGTTIN.
769 */
Willy Tarreaube58c382011-07-24 18:28:10 +0200770void resume_proxies(void)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200771{
Willy Tarreauc03ebbf2011-09-07 21:33:14 +0200772 int err;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200773 struct proxy *p;
Willy Tarreauc03ebbf2011-09-07 21:33:14 +0200774 struct peers *prs;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200775
Willy Tarreauc03ebbf2011-09-07 21:33:14 +0200776 err = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200777 p = proxy;
Willy Tarreaub0b37bc2008-06-23 14:00:57 +0200778 tv_update_date(0,1); /* else, the old time before select will be used */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200779 while (p) {
Willy Tarreauc03ebbf2011-09-07 21:33:14 +0200780 err |= !resume_proxy(p);
781 p = p->next;
782 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200783
Willy Tarreauc03ebbf2011-09-07 21:33:14 +0200784 prs = peers;
785 while (prs) {
786 p = prs->peers_fe;
787 err |= !resume_proxy(p);
788 prs = prs->next;
789 }
Willy Tarreaube58c382011-07-24 18:28:10 +0200790
Willy Tarreauc03ebbf2011-09-07 21:33:14 +0200791 if (err) {
792 Warning("Some proxies refused to resume, a restart is probably needed to resume safe operations.\n");
793 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 +0200794 }
795}
796
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200797/* Set current session's backend to <be>. Nothing is done if the
798 * session already had a backend assigned, which is indicated by
799 * s->flags & SN_BE_ASSIGNED.
800 * All flags, stats and counters which need be updated are updated.
Willy Tarreaubedb9ba2009-07-12 08:27:39 +0200801 * Returns 1 if done, 0 in case of internal error, eg: lack of resource.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200802 */
Willy Tarreaubedb9ba2009-07-12 08:27:39 +0200803int session_set_backend(struct session *s, struct proxy *be)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200804{
805 if (s->flags & SN_BE_ASSIGNED)
Willy Tarreaubedb9ba2009-07-12 08:27:39 +0200806 return 1;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200807 s->be = be;
808 be->beconn++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100809 if (be->beconn > be->be_counters.conn_max)
810 be->be_counters.conn_max = be->beconn;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200811 proxy_inc_be_ctr(be);
812
813 /* assign new parameters to the session from the new backend */
Willy Tarreauf27b5ea2009-10-03 22:01:18 +0200814 s->si[1].flags &= ~SI_FL_INDEP_STR;
815 if (be->options2 & PR_O2_INDEPSTR)
816 s->si[1].flags |= SI_FL_INDEP_STR;
817
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200818 if (be->options2 & PR_O2_RSPBUG_OK)
819 s->txn.rsp.err_pos = -1; /* let buggy responses pass */
820 s->flags |= SN_BE_ASSIGNED;
Willy Tarreau51aecc72009-07-12 09:47:04 +0200821
822 /* If the target backend requires HTTP processing, we have to allocate
823 * a struct hdr_idx for it if we did not have one.
824 */
825 if (unlikely(!s->txn.hdr_idx.v && (be->acl_requires & ACL_USE_L7_ANY))) {
Willy Tarreau34eb6712011-10-24 18:15:04 +0200826 if ((s->txn.hdr_idx.v = pool_alloc2(pool2_hdr_idx)) == NULL)
Willy Tarreau51aecc72009-07-12 09:47:04 +0200827 return 0; /* not enough memory */
Willy Tarreau39e4f622010-05-31 17:01:36 +0200828
829 /* and now initialize the HTTP transaction state */
830 http_init_txn(s);
831
Willy Tarreauac1932d2011-10-24 19:14:41 +0200832 s->txn.hdr_idx.size = global.tune.max_http_hdr;
Willy Tarreau51aecc72009-07-12 09:47:04 +0200833 hdr_idx_init(&s->txn.hdr_idx);
834 }
835
Willy Tarreau96e31212011-05-30 18:10:30 +0200836 if (be->options2 & PR_O2_NODELAY) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200837 s->req->flags |= CF_NEVER_WAIT;
838 s->rep->flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200839 }
840
Willy Tarreauc1a21672009-08-16 22:37:44 +0200841 /* We want to enable the backend-specific analysers except those which
842 * were already run as part of the frontend/listener. Note that it would
843 * be more reliable to store the list of analysers that have been run,
844 * but what we do here is OK for now.
Emeric Brun647caf12009-06-30 17:57:00 +0200845 */
Willy Tarreauc1a21672009-08-16 22:37:44 +0200846 s->req->analysers |= be->be_req_ana & ~(s->listener->analysers);
Emeric Brun647caf12009-06-30 17:57:00 +0200847
Willy Tarreaubedb9ba2009-07-12 08:27:39 +0200848 return 1;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200849}
850
Willy Tarreau9de1bbd2008-07-09 20:34:27 +0200851static struct cfg_kw_list cfg_kws = {{ },{
852 { CFG_LISTEN, "timeout", proxy_parse_timeout },
853 { CFG_LISTEN, "clitimeout", proxy_parse_timeout },
854 { CFG_LISTEN, "contimeout", proxy_parse_timeout },
855 { CFG_LISTEN, "srvtimeout", proxy_parse_timeout },
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100856 { CFG_LISTEN, "rate-limit", proxy_parse_rate_limit },
Willy Tarreau9de1bbd2008-07-09 20:34:27 +0200857 { 0, NULL, NULL },
858}};
859
860__attribute__((constructor))
861static void __proxy_module_init(void)
862{
863 cfg_register_keywords(&cfg_kws);
864}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200865
866/*
867 * Local variables:
868 * c-indent-level: 8
869 * c-basic-offset: 8
870 * End:
871 */