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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 Tarreaub2551052020-06-09 09:07:15 +020020#include <import/eb32tree.h>
21#include <import/ebistree.h>
22
Amaury Denoyelle27fefa12021-03-24 16:13:20 +010023#include <haproxy/acl.h>
Willy Tarreau4c7e4b72020-05-27 12:58:42 +020024#include <haproxy/api.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020025#include <haproxy/applet-t.h>
26#include <haproxy/capture-t.h>
Willy Tarreau6be78492020-06-05 00:00:29 +020027#include <haproxy/cfgparse.h>
Willy Tarreau83487a82020-06-04 20:19:54 +020028#include <haproxy/cli.h>
Willy Tarreau8d366972020-05-27 16:10:29 +020029#include <haproxy/errors.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020030#include <haproxy/fd.h>
Willy Tarreauc7babd82020-06-04 21:29:29 +020031#include <haproxy/filters.h>
Willy Tarreauf268ee82020-06-04 17:05:57 +020032#include <haproxy/global.h>
Willy Tarreauc2b1ff02020-06-04 21:21:03 +020033#include <haproxy/http_ana.h>
Willy Tarreau76838932021-02-12 08:49:47 +010034#include <haproxy/http_htx.h>
Willy Tarreau213e9902020-06-04 14:58:24 +020035#include <haproxy/listener.h>
Willy Tarreauaeed4a82020-06-04 22:01:04 +020036#include <haproxy/log.h>
Willy Tarreau8efbdfb2020-06-04 11:29:21 +020037#include <haproxy/obj_type-t.h>
Willy Tarreau3c2a7c22020-06-04 18:38:21 +020038#include <haproxy/peers.h>
Willy Tarreaud0ef4392020-06-02 09:38:52 +020039#include <haproxy/pool.h>
Willy Tarreau626f3a72020-10-07 16:52:43 +020040#include <haproxy/protocol.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020041#include <haproxy/proto_tcp.h>
Willy Tarreaua264d962020-06-04 22:29:18 +020042#include <haproxy/proxy.h>
Willy Tarreau1e56f922020-06-04 23:20:13 +020043#include <haproxy/server-t.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020044#include <haproxy/signal.h>
Willy Tarreau2eec9b52020-06-04 19:58:55 +020045#include <haproxy/stats-t.h>
Willy Tarreaudfd3de82020-06-04 23:46:14 +020046#include <haproxy/stream.h>
Willy Tarreau5e539c92020-06-04 20:45:39 +020047#include <haproxy/stream_interface.h>
Willy Tarreaucea0e1b2020-06-04 17:25:40 +020048#include <haproxy/task.h>
Willy Tarreau76838932021-02-12 08:49:47 +010049#include <haproxy/tcpcheck.h>
Willy Tarreau92b4f132020-06-01 11:05:15 +020050#include <haproxy/time.h>
Willy Tarreaue6844832021-05-08 13:02:07 +020051#include <haproxy/tools.h>
Frédéric Lécaillef57c64f2021-02-18 16:35:43 +010052#include <haproxy/xprt_quic.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020053
Willy Tarreaubaaee002006-06-26 02:48:02 +020054
Willy Tarreau918ff602011-07-25 16:33:49 +020055int listeners; /* # of proxy listeners, set by cfgparse */
Olivier Houchardfbc74e82017-11-24 16:54:05 +010056struct proxy *proxies_list = NULL; /* list of all existing proxies */
Willy Tarreau53fb4ae2009-10-04 23:04:08 +020057struct eb_root used_proxy_id = EB_ROOT; /* list of proxy IDs in use */
Willy Tarreauf79d9502014-03-15 07:22:35 +010058struct eb_root proxy_by_name = EB_ROOT; /* tree of proxies sorted by name */
Willy Tarreau0a0f6a72021-02-12 13:52:11 +010059struct eb_root defproxy_by_name = EB_ROOT; /* tree of default proxies sorted by name (dups possible) */
Willy Tarreau10479e42010-12-12 14:00:34 +010060unsigned int error_snapshot_id = 0; /* global ID assigned to each error then incremented */
Willy Tarreaubaaee002006-06-26 02:48:02 +020061
Willy Tarreau3a1f5fd2018-11-11 15:40:36 +010062/* proxy->options */
63const struct cfg_opt cfg_opts[] =
64{
65 { "abortonclose", PR_O_ABRT_CLOSE, PR_CAP_BE, 0, 0 },
66 { "allbackups", PR_O_USE_ALL_BK, PR_CAP_BE, 0, 0 },
67 { "checkcache", PR_O_CHK_CACHE, PR_CAP_BE, 0, PR_MODE_HTTP },
68 { "clitcpka", PR_O_TCP_CLI_KA, PR_CAP_FE, 0, 0 },
69 { "contstats", PR_O_CONTSTATS, PR_CAP_FE, 0, 0 },
70 { "dontlognull", PR_O_NULLNOLOG, PR_CAP_FE, 0, 0 },
71 { "http_proxy", PR_O_HTTP_PROXY, PR_CAP_FE | PR_CAP_BE, 0, PR_MODE_HTTP },
72 { "http-buffer-request", PR_O_WREQ_BODY, PR_CAP_FE | PR_CAP_BE, 0, PR_MODE_HTTP },
73 { "http-ignore-probes", PR_O_IGNORE_PRB, PR_CAP_FE, 0, PR_MODE_HTTP },
William Dauchy4711a892022-01-05 22:53:24 +010074 { "idle-close-on-response", PR_O_IDLE_CLOSE_RESP, PR_CAP_FE, 0, PR_MODE_HTTP },
Willy Tarreau3a1f5fd2018-11-11 15:40:36 +010075 { "prefer-last-server", PR_O_PREF_LAST, PR_CAP_BE, 0, PR_MODE_HTTP },
76 { "logasap", PR_O_LOGASAP, PR_CAP_FE, 0, 0 },
77 { "nolinger", PR_O_TCP_NOLING, PR_CAP_FE | PR_CAP_BE, 0, 0 },
78 { "persist", PR_O_PERSIST, PR_CAP_BE, 0, 0 },
79 { "srvtcpka", PR_O_TCP_SRV_KA, PR_CAP_BE, 0, 0 },
Willy Tarreaue5733232019-05-22 19:24:06 +020080#ifdef USE_TPROXY
Willy Tarreau3a1f5fd2018-11-11 15:40:36 +010081 { "transparent", PR_O_TRANSP, PR_CAP_BE, 0, 0 },
82#else
83 { "transparent", 0, 0, 0, 0 },
84#endif
85
86 { NULL, 0, 0, 0, 0 }
87};
88
89/* proxy->options2 */
90const struct cfg_opt cfg_opts2[] =
91{
Willy Tarreaue5733232019-05-22 19:24:06 +020092#ifdef USE_LINUX_SPLICE
Willy Tarreau3a1f5fd2018-11-11 15:40:36 +010093 { "splice-request", PR_O2_SPLIC_REQ, PR_CAP_FE|PR_CAP_BE, 0, 0 },
94 { "splice-response", PR_O2_SPLIC_RTR, PR_CAP_FE|PR_CAP_BE, 0, 0 },
95 { "splice-auto", PR_O2_SPLIC_AUT, PR_CAP_FE|PR_CAP_BE, 0, 0 },
96#else
97 { "splice-request", 0, 0, 0, 0 },
98 { "splice-response", 0, 0, 0, 0 },
99 { "splice-auto", 0, 0, 0, 0 },
100#endif
101 { "accept-invalid-http-request", PR_O2_REQBUG_OK, PR_CAP_FE, 0, PR_MODE_HTTP },
102 { "accept-invalid-http-response", PR_O2_RSPBUG_OK, PR_CAP_BE, 0, PR_MODE_HTTP },
103 { "dontlog-normal", PR_O2_NOLOGNORM, PR_CAP_FE, 0, 0 },
104 { "log-separate-errors", PR_O2_LOGERRORS, PR_CAP_FE, 0, 0 },
105 { "log-health-checks", PR_O2_LOGHCHKS, PR_CAP_BE, 0, 0 },
106 { "socket-stats", PR_O2_SOCKSTAT, PR_CAP_FE, 0, 0 },
107 { "tcp-smart-accept", PR_O2_SMARTACC, PR_CAP_FE, 0, 0 },
108 { "tcp-smart-connect", PR_O2_SMARTCON, PR_CAP_BE, 0, 0 },
Willy Tarreau3a1f5fd2018-11-11 15:40:36 +0100109 { "independent-streams", PR_O2_INDEPSTR, PR_CAP_FE|PR_CAP_BE, 0, 0 },
110 { "http-use-proxy-header", PR_O2_USE_PXHDR, PR_CAP_FE, 0, PR_MODE_HTTP },
111 { "http-pretend-keepalive", PR_O2_FAKE_KA, PR_CAP_BE, 0, PR_MODE_HTTP },
112 { "http-no-delay", PR_O2_NODELAY, PR_CAP_FE|PR_CAP_BE, 0, PR_MODE_HTTP },
Christopher Faulet31930372019-07-15 10:16:58 +0200113 { "http-use-htx", 0, PR_CAP_FE|PR_CAP_BE, 0, 0 }, // deprecated
Christopher Faulet98fbe952019-07-22 16:18:24 +0200114
115 {"h1-case-adjust-bogus-client", PR_O2_H1_ADJ_BUGCLI, PR_CAP_FE, 0, PR_MODE_HTTP },
116 {"h1-case-adjust-bogus-server", PR_O2_H1_ADJ_BUGSRV, PR_CAP_BE, 0, PR_MODE_HTTP },
Christopher Faulet89aed322020-06-02 17:33:56 +0200117 {"disable-h2-upgrade", PR_O2_NO_H2_UPGRADE, PR_CAP_FE, 0, PR_MODE_HTTP },
Willy Tarreau3a1f5fd2018-11-11 15:40:36 +0100118 { NULL, 0, 0, 0 }
119};
120
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100121static void free_stick_rules(struct list *rules)
122{
123 struct sticking_rule *rule, *ruleb;
124
125 list_for_each_entry_safe(rule, ruleb, rules, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200126 LIST_DELETE(&rule->list);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100127 free_acl_cond(rule->cond);
128 release_sample_expr(rule->expr);
129 free(rule);
130 }
131}
132
133void free_proxy(struct proxy *p)
134{
Amaury Denoyellebbe608a2021-08-25 15:03:46 +0200135 struct server *s;
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100136 struct cap_hdr *h,*h_next;
137 struct listener *l,*l_next;
138 struct bind_conf *bind_conf, *bind_back;
139 struct acl_cond *cond, *condb;
140 struct acl *acl, *aclb;
141 struct server_rule *srule, *sruleb;
142 struct switching_rule *rule, *ruleb;
143 struct redirect_rule *rdr, *rdrb;
144 struct logsrv *log, *logb;
145 struct logformat_node *lf, *lfb;
146 struct proxy_deinit_fct *pxdf;
147 struct server_deinit_fct *srvdf;
148
149 free(p->conf.file);
150 free(p->id);
151 free(p->cookie_name);
152 free(p->cookie_domain);
153 free(p->cookie_attrs);
154 free(p->lbprm.arg_str);
155 free(p->server_state_file_name);
156 free(p->capture_name);
157 free(p->monitor_uri);
158 free(p->rdp_cookie_name);
159 free(p->invalid_rep);
160 free(p->invalid_req);
161#if defined(CONFIG_HAP_TRANSPARENT)
162 free(p->conn_src.bind_hdr_name);
163#endif
164 if (p->conf.logformat_string != default_http_log_format &&
165 p->conf.logformat_string != default_tcp_log_format &&
166 p->conf.logformat_string != clf_http_log_format)
167 free(p->conf.logformat_string);
168
169 free(p->conf.lfs_file);
170 free(p->conf.uniqueid_format_string);
171 istfree(&p->header_unique_id);
172 free(p->conf.uif_file);
173 if ((p->lbprm.algo & BE_LB_LKUP) == BE_LB_LKUP_MAP)
174 free(p->lbprm.map.srv);
175
176 if (p->conf.logformat_sd_string != default_rfc5424_sd_log_format)
177 free(p->conf.logformat_sd_string);
178 free(p->conf.lfsd_file);
179
180 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200181 LIST_DELETE(&cond->list);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100182 prune_acl_cond(cond);
183 free(cond);
184 }
185
186 EXTRA_COUNTERS_FREE(p->extra_counters_fe);
187 EXTRA_COUNTERS_FREE(p->extra_counters_be);
188
189 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200190 LIST_DELETE(&acl->list);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100191 prune_acl(acl);
192 free(acl);
193 }
194
195 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200196 LIST_DELETE(&srule->list);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100197 prune_acl_cond(srule->cond);
198 list_for_each_entry_safe(lf, lfb, &srule->expr, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200199 LIST_DELETE(&lf->list);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100200 release_sample_expr(lf->expr);
201 free(lf->arg);
202 free(lf);
203 }
204 free(srule->file);
205 free(srule->cond);
206 free(srule);
207 }
208
209 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200210 LIST_DELETE(&rule->list);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100211 if (rule->cond) {
212 prune_acl_cond(rule->cond);
213 free(rule->cond);
214 }
215 free(rule->file);
216 free(rule);
217 }
218
219 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200220 LIST_DELETE(&rdr->list);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100221 if (rdr->cond) {
222 prune_acl_cond(rdr->cond);
223 free(rdr->cond);
224 }
225 free(rdr->rdr_str);
226 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200227 LIST_DELETE(&lf->list);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100228 free(lf);
229 }
230 free(rdr);
231 }
232
233 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200234 LIST_DELETE(&log->list);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100235 free(log);
236 }
237
238 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200239 LIST_DELETE(&lf->list);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100240 release_sample_expr(lf->expr);
241 free(lf->arg);
242 free(lf);
243 }
244
245 list_for_each_entry_safe(lf, lfb, &p->logformat_sd, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200246 LIST_DELETE(&lf->list);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100247 release_sample_expr(lf->expr);
248 free(lf->arg);
249 free(lf);
250 }
251
252 list_for_each_entry_safe(lf, lfb, &p->format_unique_id, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200253 LIST_DELETE(&lf->list);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100254 release_sample_expr(lf->expr);
255 free(lf->arg);
256 free(lf);
257 }
258
259 free_act_rules(&p->tcp_req.inspect_rules);
260 free_act_rules(&p->tcp_rep.inspect_rules);
261 free_act_rules(&p->tcp_req.l4_rules);
262 free_act_rules(&p->tcp_req.l5_rules);
263 free_act_rules(&p->http_req_rules);
264 free_act_rules(&p->http_res_rules);
265 free_act_rules(&p->http_after_res_rules);
266
267 free_stick_rules(&p->storersp_rules);
268 free_stick_rules(&p->sticking_rules);
269
270 h = p->req_cap;
271 while (h) {
272 h_next = h->next;
273 free(h->name);
274 pool_destroy(h->pool);
275 free(h);
276 h = h_next;
277 }/* end while(h) */
278
279 h = p->rsp_cap;
280 while (h) {
281 h_next = h->next;
282 free(h->name);
283 pool_destroy(h->pool);
284 free(h);
285 h = h_next;
286 }/* end while(h) */
287
288 s = p->srv;
289 while (s) {
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100290 list_for_each_entry(srvdf, &server_deinit_list, list)
291 srvdf->fct(s);
Amaury Denoyellebbe608a2021-08-25 15:03:46 +0200292 s = free_server(s);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100293 }/* end while(s) */
294
295 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200296 LIST_DELETE(&l->by_fe);
297 LIST_DELETE(&l->by_bind);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100298 free(l->name);
299 free(l->counters);
300
301 EXTRA_COUNTERS_FREE(l->extra_counters);
302 free(l);
303 }
304
305 /* Release unused SSL configs. */
306 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
307 if (bind_conf->xprt->destroy_bind_conf)
308 bind_conf->xprt->destroy_bind_conf(bind_conf);
309 free(bind_conf->file);
310 free(bind_conf->arg);
Willy Tarreau2b718102021-04-21 07:32:39 +0200311 LIST_DELETE(&bind_conf->by_fe);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100312 free(bind_conf);
313 }
314
315 flt_deinit(p);
316
317 list_for_each_entry(pxdf, &proxy_deinit_list, list)
318 pxdf->fct(p);
319
320 free(p->desc);
321 free(p->fwdfor_hdr_name);
322
323 task_destroy(p->task);
324
325 pool_destroy(p->req_cap_pool);
326 pool_destroy(p->rsp_cap_pool);
327 if (p->table)
328 pool_destroy(p->table->pool);
329
330 HA_RWLOCK_DESTROY(&p->lbprm.lock);
331 HA_RWLOCK_DESTROY(&p->lock);
332 ha_free(&p);
333}
334
Willy Tarreau977b8e42006-12-29 14:19:17 +0100335/*
Willy Tarreau816eb542007-11-04 07:04:43 +0100336 * This function returns a string containing a name describing capabilities to
337 * report comprehensible error messages. Specifically, it will return the words
Willy Tarreau80dc6fe2021-02-12 09:43:33 +0100338 * "frontend", "backend" when appropriate, "defaults" if it corresponds to a
339 * defaults section, or "proxy" for all other cases including the proxies
340 * declared in "listen" mode.
Willy Tarreau977b8e42006-12-29 14:19:17 +0100341 */
Willy Tarreau816eb542007-11-04 07:04:43 +0100342const char *proxy_cap_str(int cap)
Willy Tarreau977b8e42006-12-29 14:19:17 +0100343{
Willy Tarreau80dc6fe2021-02-12 09:43:33 +0100344 if (cap & PR_CAP_DEF)
345 return "defaults";
346
Willy Tarreau816eb542007-11-04 07:04:43 +0100347 if ((cap & PR_CAP_LISTEN) != PR_CAP_LISTEN) {
348 if (cap & PR_CAP_FE)
349 return "frontend";
350 else if (cap & PR_CAP_BE)
351 return "backend";
Willy Tarreau816eb542007-11-04 07:04:43 +0100352 }
353 return "proxy";
Willy Tarreau977b8e42006-12-29 14:19:17 +0100354}
355
Krzysztof Piotr Oledzki6eb730d2007-11-03 23:41:58 +0100356/*
357 * This function returns a string containing the mode of the proxy in a format
358 * suitable for error messages.
359 */
Krzysztof Piotr Oledzki6eb730d2007-11-03 23:41:58 +0100360const char *proxy_mode_str(int mode) {
361
362 if (mode == PR_MODE_TCP)
363 return "tcp";
364 else if (mode == PR_MODE_HTTP)
365 return "http";
William Lallemandcf62f7e2018-10-26 14:47:40 +0200366 else if (mode == PR_MODE_CLI)
367 return "cli";
William Lallemandfc24fe22022-03-08 11:50:59 +0100368 else if (mode == PR_MODE_SYSLOG)
369 return "syslog";
370 else if (mode == PR_MODE_PEERS)
371 return "peers";
Krzysztof Piotr Oledzki6eb730d2007-11-03 23:41:58 +0100372 else
373 return "unknown";
374}
375
Willy Tarreau31a3cea2021-03-15 11:11:55 +0100376/* try to find among known options the one that looks closest to <word> by
377 * counting transitions between letters, digits and other characters. Will
378 * return the best matching word if found, otherwise NULL. An optional array
379 * of extra words to compare may be passed in <extra>, but it must then be
380 * terminated by a NULL entry. If unused it may be NULL.
381 */
382const char *proxy_find_best_option(const char *word, const char **extra)
383{
384 uint8_t word_sig[1024];
385 uint8_t list_sig[1024];
386 const char *best_ptr = NULL;
387 int dist, best_dist = INT_MAX;
388 int index;
389
390 make_word_fingerprint(word_sig, word);
391
392 for (index = 0; cfg_opts[index].name; index++) {
393 make_word_fingerprint(list_sig, cfg_opts[index].name);
394 dist = word_fingerprint_distance(word_sig, list_sig);
395 if (dist < best_dist) {
396 best_dist = dist;
397 best_ptr = cfg_opts[index].name;
398 }
399 }
400
401 for (index = 0; cfg_opts2[index].name; index++) {
402 make_word_fingerprint(list_sig, cfg_opts2[index].name);
403 dist = word_fingerprint_distance(word_sig, list_sig);
404 if (dist < best_dist) {
405 best_dist = dist;
406 best_ptr = cfg_opts2[index].name;
407 }
408 }
409
410 while (extra && *extra) {
411 make_word_fingerprint(list_sig, *extra);
412 dist = word_fingerprint_distance(word_sig, list_sig);
413 if (dist < best_dist) {
414 best_dist = dist;
415 best_ptr = *extra;
416 }
417 extra++;
418 }
419
420 if (best_dist > 2 * strlen(word) || (best_ptr && best_dist > 2 * strlen(best_ptr)))
421 best_ptr = NULL;
422 return best_ptr;
423}
424
Willy Tarreauf3950172009-10-10 18:35:51 +0200425/*
426 * This function scans the list of backends and servers to retrieve the first
427 * backend and the first server with the given names, and sets them in both
428 * parameters. It returns zero if either is not found, or non-zero and sets
429 * the ones it did not found to NULL. If a NULL pointer is passed for the
430 * backend, only the pointer to the server will be updated.
431 */
432int get_backend_server(const char *bk_name, const char *sv_name,
433 struct proxy **bk, struct server **sv)
434{
435 struct proxy *p;
436 struct server *s;
Willy Tarreau7ecc4202014-03-15 07:57:11 +0100437 int sid;
Willy Tarreauf3950172009-10-10 18:35:51 +0200438
439 *sv = NULL;
440
Willy Tarreau050536d2012-10-04 08:47:34 +0200441 sid = -1;
Willy Tarreaucfeaa472009-10-10 22:33:08 +0200442 if (*sv_name == '#')
443 sid = atoi(sv_name + 1);
444
Willy Tarreau9e0bb102015-05-26 11:24:42 +0200445 p = proxy_be_by_name(bk_name);
Willy Tarreauf3950172009-10-10 18:35:51 +0200446 if (bk)
447 *bk = p;
448 if (!p)
449 return 0;
450
451 for (s = p->srv; s; s = s->next)
Willy Tarreau4055a102012-11-15 00:15:18 +0100452 if ((sid >= 0 && s->puid == sid) ||
453 (sid < 0 && strcmp(s->id, sv_name) == 0))
Willy Tarreauf3950172009-10-10 18:35:51 +0200454 break;
455 *sv = s;
456 if (!s)
457 return 0;
458 return 1;
459}
460
Willy Tarreaue219db72007-12-03 01:30:13 +0100461/* This function parses a "timeout" statement in a proxy section. It returns
462 * -1 if there is any error, 1 for a warning, otherwise zero. If it does not
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200463 * return zero, it will write an error or warning message into a preallocated
464 * buffer returned at <err>. The trailing is not be written. The function must
465 * be called with <args> pointing to the first command line word, with <proxy>
466 * pointing to the proxy being parsed, and <defpx> to the default proxy or NULL.
467 * As a special case for compatibility with older configs, it also accepts
468 * "{cli|srv|con}timeout" in args[0].
Willy Tarreaue219db72007-12-03 01:30:13 +0100469 */
Willy Tarreau9de1bbd2008-07-09 20:34:27 +0200470static int proxy_parse_timeout(char **args, int section, struct proxy *proxy,
Willy Tarreau01825162021-03-09 09:53:46 +0100471 const struct proxy *defpx, const char *file, int line,
Willy Tarreau28a47d62012-09-18 20:02:48 +0200472 char **err)
Willy Tarreaue219db72007-12-03 01:30:13 +0100473{
474 unsigned timeout;
475 int retval, cap;
476 const char *res, *name;
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200477 int *tv = NULL;
Willy Tarreau01825162021-03-09 09:53:46 +0100478 const int *td = NULL;
Willy Tarreaue219db72007-12-03 01:30:13 +0100479
480 retval = 0;
Willy Tarreau9de1bbd2008-07-09 20:34:27 +0200481
482 /* simply skip "timeout" but remain compatible with old form */
483 if (strcmp(args[0], "timeout") == 0)
484 args++;
485
Willy Tarreaue219db72007-12-03 01:30:13 +0100486 name = args[0];
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100487 if (strcmp(args[0], "client") == 0) {
Willy Tarreaue219db72007-12-03 01:30:13 +0100488 name = "client";
Willy Tarreaud7c30f92007-12-03 01:38:36 +0100489 tv = &proxy->timeout.client;
490 td = &defpx->timeout.client;
Willy Tarreaue219db72007-12-03 01:30:13 +0100491 cap = PR_CAP_FE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100492 } else if (strcmp(args[0], "tarpit") == 0) {
Willy Tarreaue219db72007-12-03 01:30:13 +0100493 tv = &proxy->timeout.tarpit;
494 td = &defpx->timeout.tarpit;
Willy Tarreau51c9bde2008-01-06 13:40:03 +0100495 cap = PR_CAP_FE | PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100496 } else if (strcmp(args[0], "http-keep-alive") == 0) {
Willy Tarreaub16a5742010-01-10 14:46:16 +0100497 tv = &proxy->timeout.httpka;
498 td = &defpx->timeout.httpka;
499 cap = PR_CAP_FE | PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100500 } else if (strcmp(args[0], "http-request") == 0) {
Willy Tarreau036fae02008-01-06 13:24:40 +0100501 tv = &proxy->timeout.httpreq;
502 td = &defpx->timeout.httpreq;
Willy Tarreaucd7afc02009-07-12 10:03:17 +0200503 cap = PR_CAP_FE | PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100504 } else if (strcmp(args[0], "server") == 0) {
Willy Tarreaue219db72007-12-03 01:30:13 +0100505 name = "server";
Willy Tarreaud7c30f92007-12-03 01:38:36 +0100506 tv = &proxy->timeout.server;
507 td = &defpx->timeout.server;
Willy Tarreaue219db72007-12-03 01:30:13 +0100508 cap = PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100509 } else if (strcmp(args[0], "connect") == 0) {
Willy Tarreaue219db72007-12-03 01:30:13 +0100510 name = "connect";
Willy Tarreaud7c30f92007-12-03 01:38:36 +0100511 tv = &proxy->timeout.connect;
512 td = &defpx->timeout.connect;
Willy Tarreaue219db72007-12-03 01:30:13 +0100513 cap = PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100514 } else if (strcmp(args[0], "check") == 0) {
Krzysztof Piotr Oledzki5259dfe2008-01-21 01:54:06 +0100515 tv = &proxy->timeout.check;
516 td = &defpx->timeout.check;
517 cap = PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100518 } else if (strcmp(args[0], "queue") == 0) {
Willy Tarreaue219db72007-12-03 01:30:13 +0100519 tv = &proxy->timeout.queue;
520 td = &defpx->timeout.queue;
521 cap = PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100522 } else if (strcmp(args[0], "tunnel") == 0) {
Willy Tarreauce887fd2012-05-12 12:50:00 +0200523 tv = &proxy->timeout.tunnel;
524 td = &defpx->timeout.tunnel;
525 cap = PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100526 } else if (strcmp(args[0], "client-fin") == 0) {
Willy Tarreau05cdd962014-05-10 14:30:07 +0200527 tv = &proxy->timeout.clientfin;
528 td = &defpx->timeout.clientfin;
529 cap = PR_CAP_FE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100530 } else if (strcmp(args[0], "server-fin") == 0) {
Willy Tarreau05cdd962014-05-10 14:30:07 +0200531 tv = &proxy->timeout.serverfin;
532 td = &defpx->timeout.serverfin;
533 cap = PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100534 } else if (strcmp(args[0], "clitimeout") == 0) {
Tim Duesterhus86e6b6e2019-05-14 20:57:59 +0200535 memprintf(err, "the '%s' directive is not supported anymore since HAProxy 2.1. Use 'timeout client'.", args[0]);
536 return -1;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100537 } else if (strcmp(args[0], "srvtimeout") == 0) {
Tim Duesterhus86e6b6e2019-05-14 20:57:59 +0200538 memprintf(err, "the '%s' directive is not supported anymore since HAProxy 2.1. Use 'timeout server'.", args[0]);
539 return -1;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100540 } else if (strcmp(args[0], "contimeout") == 0) {
Tim Duesterhus86e6b6e2019-05-14 20:57:59 +0200541 memprintf(err, "the '%s' directive is not supported anymore since HAProxy 2.1. Use 'timeout connect'.", args[0]);
542 return -1;
Willy Tarreaue219db72007-12-03 01:30:13 +0100543 } else {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200544 memprintf(err,
545 "'timeout' supports 'client', 'server', 'connect', 'check', "
Willy Tarreau05cdd962014-05-10 14:30:07 +0200546 "'queue', 'http-keep-alive', 'http-request', 'tunnel', 'tarpit', "
547 "'client-fin' and 'server-fin' (got '%s')",
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200548 args[0]);
Willy Tarreaue219db72007-12-03 01:30:13 +0100549 return -1;
550 }
551
552 if (*args[1] == 0) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200553 memprintf(err, "'timeout %s' expects an integer value (in milliseconds)", name);
Willy Tarreaue219db72007-12-03 01:30:13 +0100554 return -1;
555 }
556
557 res = parse_time_err(args[1], &timeout, TIME_UNIT_MS);
Willy Tarreau9faebe32019-06-07 19:00:37 +0200558 if (res == PARSE_TIME_OVER) {
559 memprintf(err, "timer overflow in argument '%s' to 'timeout %s' (maximum value is 2147483647 ms or ~24.8 days)",
560 args[1], name);
561 return -1;
562 }
563 else if (res == PARSE_TIME_UNDER) {
564 memprintf(err, "timer underflow in argument '%s' to 'timeout %s' (minimum non-null value is 1 ms)",
565 args[1], name);
566 return -1;
567 }
568 else if (res) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200569 memprintf(err, "unexpected character '%c' in 'timeout %s'", *res, name);
Willy Tarreaue219db72007-12-03 01:30:13 +0100570 return -1;
571 }
572
573 if (!(proxy->cap & cap)) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200574 memprintf(err, "'timeout %s' will be ignored because %s '%s' has no %s capability",
575 name, proxy_type_str(proxy), proxy->id,
576 (cap & PR_CAP_BE) ? "backend" : "frontend");
Willy Tarreaue219db72007-12-03 01:30:13 +0100577 retval = 1;
578 }
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200579 else if (defpx && *tv != *td) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200580 memprintf(err, "overwriting 'timeout %s' which was already specified", name);
Willy Tarreaue219db72007-12-03 01:30:13 +0100581 retval = 1;
582 }
583
Willy Tarreaufac5b592014-05-22 08:24:46 +0200584 if (*args[2] != 0) {
585 memprintf(err, "'timeout %s' : unexpected extra argument '%s' after value '%s'.", name, args[2], args[1]);
586 retval = -1;
587 }
588
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200589 *tv = MS_TO_TICKS(timeout);
Willy Tarreaue219db72007-12-03 01:30:13 +0100590 return retval;
591}
592
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100593/* This function parses a "rate-limit" statement in a proxy section. It returns
594 * -1 if there is any error, 1 for a warning, otherwise zero. If it does not
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200595 * return zero, it will write an error or warning message into a preallocated
596 * buffer returned at <err>. The function must be called with <args> pointing
597 * to the first command line word, with <proxy> pointing to the proxy being
598 * parsed, and <defpx> to the default proxy or NULL.
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100599 */
600static int proxy_parse_rate_limit(char **args, int section, struct proxy *proxy,
Willy Tarreau01825162021-03-09 09:53:46 +0100601 const struct proxy *defpx, const char *file, int line,
Willy Tarreau28a47d62012-09-18 20:02:48 +0200602 char **err)
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100603{
William Dauchybb9da0b2020-01-16 01:34:27 +0100604 int retval;
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200605 char *res;
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100606 unsigned int *tv = NULL;
Willy Tarreau01825162021-03-09 09:53:46 +0100607 const unsigned int *td = NULL;
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100608 unsigned int val;
609
610 retval = 0;
611
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200612 if (strcmp(args[1], "sessions") == 0) {
Willy Tarreau13a34bd2009-05-10 18:52:49 +0200613 tv = &proxy->fe_sps_lim;
614 td = &defpx->fe_sps_lim;
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200615 }
616 else {
617 memprintf(err, "'%s' only supports 'sessions' (got '%s')", args[0], args[1]);
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100618 return -1;
619 }
620
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200621 if (*args[2] == 0) {
622 memprintf(err, "'%s %s' expects expects an integer value (in sessions/second)", args[0], args[1]);
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100623 return -1;
624 }
625
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200626 val = strtoul(args[2], &res, 0);
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100627 if (*res) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200628 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 +0100629 return -1;
630 }
631
William Dauchybb9da0b2020-01-16 01:34:27 +0100632 if (!(proxy->cap & PR_CAP_FE)) {
633 memprintf(err, "%s %s will be ignored because %s '%s' has no frontend capability",
634 args[0], args[1], proxy_type_str(proxy), proxy->id);
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100635 retval = 1;
636 }
637 else if (defpx && *tv != *td) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200638 memprintf(err, "overwriting %s %s which was already specified", args[0], args[1]);
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100639 retval = 1;
640 }
641
642 *tv = val;
643 return retval;
644}
645
Willy Tarreauc35362a2014-04-25 13:58:37 +0200646/* This function parses a "max-keep-alive-queue" statement in a proxy section.
647 * It returns -1 if there is any error, 1 for a warning, otherwise zero. If it
648 * does not return zero, it will write an error or warning message into a
649 * preallocated buffer returned at <err>. The function must be called with
650 * <args> pointing to the first command line word, with <proxy> pointing to
651 * the proxy being parsed, and <defpx> to the default proxy or NULL.
652 */
653static int proxy_parse_max_ka_queue(char **args, int section, struct proxy *proxy,
Willy Tarreau01825162021-03-09 09:53:46 +0100654 const struct proxy *defpx, const char *file, int line,
Willy Tarreauc35362a2014-04-25 13:58:37 +0200655 char **err)
656{
657 int retval;
658 char *res;
659 unsigned int val;
660
661 retval = 0;
662
663 if (*args[1] == 0) {
664 memprintf(err, "'%s' expects expects an integer value (or -1 to disable)", args[0]);
665 return -1;
666 }
667
668 val = strtol(args[1], &res, 0);
669 if (*res) {
670 memprintf(err, "'%s' : unexpected character '%c' in integer value '%s'", args[0], *res, args[1]);
671 return -1;
672 }
673
674 if (!(proxy->cap & PR_CAP_BE)) {
675 memprintf(err, "%s will be ignored because %s '%s' has no backend capability",
676 args[0], proxy_type_str(proxy), proxy->id);
677 retval = 1;
678 }
679
680 /* we store <val+1> so that a user-facing value of -1 is stored as zero (default) */
681 proxy->max_ka_queue = val + 1;
682 return retval;
683}
684
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +0200685/* This function parses a "declare" statement in a proxy section. It returns -1
686 * if there is any error, 1 for warning, otherwise 0. If it does not return zero,
687 * it will write an error or warning message into a preallocated buffer returned
688 * at <err>. The function must be called with <args> pointing to the first command
689 * line word, with <proxy> pointing to the proxy being parsed, and <defpx> to the
690 * default proxy or NULL.
691 */
692static int proxy_parse_declare(char **args, int section, struct proxy *curpx,
Willy Tarreau01825162021-03-09 09:53:46 +0100693 const struct proxy *defpx, const char *file, int line,
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +0200694 char **err)
695{
696 /* Capture keyword wannot be declared in a default proxy. */
697 if (curpx == defpx) {
Joseph Herlant9edebb82018-11-15 11:50:44 -0800698 memprintf(err, "'%s' not available in default section", args[0]);
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +0200699 return -1;
700 }
701
Thayne McCombs8f0cc5c2021-01-07 21:35:52 -0700702 /* Capture keyword is only available in frontend. */
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +0200703 if (!(curpx->cap & PR_CAP_FE)) {
Joseph Herlant9edebb82018-11-15 11:50:44 -0800704 memprintf(err, "'%s' only available in frontend or listen section", args[0]);
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +0200705 return -1;
706 }
707
708 /* Check mandatory second keyword. */
709 if (!args[1] || !*args[1]) {
710 memprintf(err, "'%s' needs a second keyword that specify the type of declaration ('capture')", args[0]);
711 return -1;
712 }
713
Joseph Herlant59dd2952018-11-15 11:46:55 -0800714 /* Actually, declare is only available for declaring capture
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +0200715 * slot, but in the future it can declare maps or variables.
Joseph Herlant59dd2952018-11-15 11:46:55 -0800716 * So, this section permits to check and switch according with
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +0200717 * the second keyword.
718 */
719 if (strcmp(args[1], "capture") == 0) {
720 char *error = NULL;
721 long len;
722 struct cap_hdr *hdr;
723
724 /* Check the next keyword. */
725 if (!args[2] || !*args[2] ||
726 (strcmp(args[2], "response") != 0 &&
727 strcmp(args[2], "request") != 0)) {
728 memprintf(err, "'%s %s' requires a direction ('request' or 'response')", args[0], args[1]);
729 return -1;
730 }
731
732 /* Check the 'len' keyword. */
733 if (!args[3] || !*args[3] || strcmp(args[3], "len") != 0) {
734 memprintf(err, "'%s %s' requires a capture length ('len')", args[0], args[1]);
735 return -1;
736 }
737
738 /* Check the length value. */
739 if (!args[4] || !*args[4]) {
740 memprintf(err, "'%s %s': 'len' requires a numeric value that represents the "
741 "capture length",
742 args[0], args[1]);
743 return -1;
744 }
745
746 /* convert the length value. */
747 len = strtol(args[4], &error, 10);
748 if (*error != '\0') {
749 memprintf(err, "'%s %s': cannot parse the length '%s'.",
750 args[0], args[1], args[3]);
751 return -1;
752 }
753
754 /* check length. */
755 if (len <= 0) {
756 memprintf(err, "length must be > 0");
757 return -1;
758 }
759
760 /* register the capture. */
Vincent Bernat02779b62016-04-03 13:48:43 +0200761 hdr = calloc(1, sizeof(*hdr));
Remi Tricot-Le Breton581d8922021-05-12 18:04:46 +0200762 if (!hdr) {
763 memprintf(err, "proxy '%s': out of memory while registering a capture", curpx->id);
764 return -1;
765 }
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +0200766 hdr->name = NULL; /* not a header capture */
767 hdr->namelen = 0;
768 hdr->len = len;
769 hdr->pool = create_pool("caphdr", hdr->len + 1, MEM_F_SHARED);
770
771 if (strcmp(args[2], "request") == 0) {
772 hdr->next = curpx->req_cap;
773 hdr->index = curpx->nb_req_cap++;
774 curpx->req_cap = hdr;
775 }
776 if (strcmp(args[2], "response") == 0) {
777 hdr->next = curpx->rsp_cap;
778 hdr->index = curpx->nb_rsp_cap++;
779 curpx->rsp_cap = hdr;
780 }
781 return 0;
782 }
783 else {
784 memprintf(err, "unknown declaration type '%s' (supports 'capture')", args[1]);
785 return -1;
786 }
787}
788
Olivier Houcharda254a372019-04-05 15:30:12 +0200789/* This function parses a "retry-on" statement */
790static int
791proxy_parse_retry_on(char **args, int section, struct proxy *curpx,
Willy Tarreau01825162021-03-09 09:53:46 +0100792 const struct proxy *defpx, const char *file, int line,
Olivier Houcharda254a372019-04-05 15:30:12 +0200793 char **err)
794{
795 int i;
796
797 if (!(*args[1])) {
798 memprintf(err, "'%s' needs at least one keyword to specify when to retry", args[0]);
799 return -1;
800 }
801 if (!(curpx->cap & PR_CAP_BE)) {
802 memprintf(err, "'%s' only available in backend or listen section", args[0]);
803 return -1;
804 }
805 curpx->retry_type = 0;
806 for (i = 1; *(args[i]); i++) {
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100807 if (strcmp(args[i], "conn-failure") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200808 curpx->retry_type |= PR_RE_CONN_FAILED;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100809 else if (strcmp(args[i], "empty-response") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200810 curpx->retry_type |= PR_RE_DISCONNECTED;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100811 else if (strcmp(args[i], "response-timeout") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200812 curpx->retry_type |= PR_RE_TIMEOUT;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100813 else if (strcmp(args[i], "401") == 0)
Julien Pivotto2de240a2020-11-12 11:14:05 +0100814 curpx->retry_type |= PR_RE_401;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100815 else if (strcmp(args[i], "403") == 0)
Julien Pivotto2de240a2020-11-12 11:14:05 +0100816 curpx->retry_type |= PR_RE_403;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100817 else if (strcmp(args[i], "404") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200818 curpx->retry_type |= PR_RE_404;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100819 else if (strcmp(args[i], "408") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200820 curpx->retry_type |= PR_RE_408;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100821 else if (strcmp(args[i], "425") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200822 curpx->retry_type |= PR_RE_425;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100823 else if (strcmp(args[i], "500") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200824 curpx->retry_type |= PR_RE_500;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100825 else if (strcmp(args[i], "501") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200826 curpx->retry_type |= PR_RE_501;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100827 else if (strcmp(args[i], "502") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200828 curpx->retry_type |= PR_RE_502;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100829 else if (strcmp(args[i], "503") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200830 curpx->retry_type |= PR_RE_503;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100831 else if (strcmp(args[i], "504") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200832 curpx->retry_type |= PR_RE_504;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100833 else if (strcmp(args[i], "0rtt-rejected") == 0)
Olivier Houchard865d8392019-05-03 22:46:27 +0200834 curpx->retry_type |= PR_RE_EARLY_ERROR;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100835 else if (strcmp(args[i], "junk-response") == 0)
Olivier Houcharde3249a92019-05-03 23:01:47 +0200836 curpx->retry_type |= PR_RE_JUNK_REQUEST;
Olivier Houchardddf0e032019-05-10 18:05:40 +0200837 else if (!(strcmp(args[i], "all-retryable-errors")))
838 curpx->retry_type |= PR_RE_CONN_FAILED | PR_RE_DISCONNECTED |
839 PR_RE_TIMEOUT | PR_RE_500 | PR_RE_502 |
840 PR_RE_503 | PR_RE_504 | PR_RE_EARLY_ERROR |
841 PR_RE_JUNK_REQUEST;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100842 else if (strcmp(args[i], "none") == 0) {
Olivier Houcharda254a372019-04-05 15:30:12 +0200843 if (i != 1 || *args[i + 1]) {
844 memprintf(err, "'%s' 'none' keyworld only usable alone", args[0]);
845 return -1;
846 }
847 } else {
848 memprintf(err, "'%s': unknown keyword '%s'", args[0], args[i]);
849 return -1;
850 }
851
852 }
853
854
855 return 0;
856}
857
Willy Tarreau52543212020-07-09 05:58:51 +0200858#ifdef TCP_KEEPCNT
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900859/* This function parses "{cli|srv}tcpka-cnt" statements */
860static int proxy_parse_tcpka_cnt(char **args, int section, struct proxy *proxy,
Willy Tarreau01825162021-03-09 09:53:46 +0100861 const struct proxy *defpx, const char *file, int line,
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900862 char **err)
863{
864 int retval;
865 char *res;
866 unsigned int tcpka_cnt;
867
868 retval = 0;
869
870 if (*args[1] == 0) {
871 memprintf(err, "'%s' expects an integer value", args[0]);
872 return -1;
873 }
874
875 tcpka_cnt = strtol(args[1], &res, 0);
876 if (*res) {
877 memprintf(err, "'%s' : unexpected character '%c' in integer value '%s'", args[0], *res, args[1]);
878 return -1;
879 }
880
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100881 if (strcmp(args[0], "clitcpka-cnt") == 0) {
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900882 if (!(proxy->cap & PR_CAP_FE)) {
883 memprintf(err, "%s will be ignored because %s '%s' has no frontend capability",
884 args[0], proxy_type_str(proxy), proxy->id);
885 retval = 1;
886 }
887 proxy->clitcpka_cnt = tcpka_cnt;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100888 } else if (strcmp(args[0], "srvtcpka-cnt") == 0) {
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900889 if (!(proxy->cap & PR_CAP_BE)) {
890 memprintf(err, "%s will be ignored because %s '%s' has no backend capability",
891 args[0], proxy_type_str(proxy), proxy->id);
892 retval = 1;
893 }
894 proxy->srvtcpka_cnt = tcpka_cnt;
895 } else {
896 /* unreachable */
897 memprintf(err, "'%s': unknown keyword", args[0]);
898 return -1;
899 }
900
901 return retval;
902}
Willy Tarreau52543212020-07-09 05:58:51 +0200903#endif
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900904
Willy Tarreau52543212020-07-09 05:58:51 +0200905#ifdef TCP_KEEPIDLE
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900906/* This function parses "{cli|srv}tcpka-idle" statements */
907static int proxy_parse_tcpka_idle(char **args, int section, struct proxy *proxy,
Willy Tarreau01825162021-03-09 09:53:46 +0100908 const struct proxy *defpx, const char *file, int line,
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900909 char **err)
910{
911 int retval;
912 const char *res;
913 unsigned int tcpka_idle;
914
915 retval = 0;
916
917 if (*args[1] == 0) {
918 memprintf(err, "'%s' expects an integer value", args[0]);
919 return -1;
920 }
921 res = parse_time_err(args[1], &tcpka_idle, TIME_UNIT_S);
922 if (res == PARSE_TIME_OVER) {
923 memprintf(err, "timer overflow in argument '%s' to '%s' (maximum value is 2147483647 ms or ~24.8 days)",
924 args[1], args[0]);
925 return -1;
926 }
927 else if (res == PARSE_TIME_UNDER) {
928 memprintf(err, "timer underflow in argument '%s' to '%s' (minimum non-null value is 1 ms)",
929 args[1], args[0]);
930 return -1;
931 }
932 else if (res) {
933 memprintf(err, "unexpected character '%c' in argument to <%s>.\n", *res, args[0]);
934 return -1;
935 }
936
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100937 if (strcmp(args[0], "clitcpka-idle") == 0) {
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900938 if (!(proxy->cap & PR_CAP_FE)) {
939 memprintf(err, "%s will be ignored because %s '%s' has no frontend capability",
940 args[0], proxy_type_str(proxy), proxy->id);
941 retval = 1;
942 }
943 proxy->clitcpka_idle = tcpka_idle;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100944 } else if (strcmp(args[0], "srvtcpka-idle") == 0) {
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900945 if (!(proxy->cap & PR_CAP_BE)) {
946 memprintf(err, "%s will be ignored because %s '%s' has no backend capability",
947 args[0], proxy_type_str(proxy), proxy->id);
948 retval = 1;
949 }
950 proxy->srvtcpka_idle = tcpka_idle;
951 } else {
952 /* unreachable */
953 memprintf(err, "'%s': unknown keyword", args[0]);
954 return -1;
955 }
956
957 return retval;
958}
Willy Tarreau52543212020-07-09 05:58:51 +0200959#endif
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900960
Willy Tarreau52543212020-07-09 05:58:51 +0200961#ifdef TCP_KEEPINTVL
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900962/* This function parses "{cli|srv}tcpka-intvl" statements */
963static int proxy_parse_tcpka_intvl(char **args, int section, struct proxy *proxy,
Willy Tarreau01825162021-03-09 09:53:46 +0100964 const struct proxy *defpx, const char *file, int line,
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900965 char **err)
966{
967 int retval;
968 const char *res;
969 unsigned int tcpka_intvl;
970
971 retval = 0;
972
973 if (*args[1] == 0) {
974 memprintf(err, "'%s' expects an integer value", args[0]);
975 return -1;
976 }
977 res = parse_time_err(args[1], &tcpka_intvl, TIME_UNIT_S);
978 if (res == PARSE_TIME_OVER) {
979 memprintf(err, "timer overflow in argument '%s' to '%s' (maximum value is 2147483647 ms or ~24.8 days)",
980 args[1], args[0]);
981 return -1;
982 }
983 else if (res == PARSE_TIME_UNDER) {
984 memprintf(err, "timer underflow in argument '%s' to '%s' (minimum non-null value is 1 ms)",
985 args[1], args[0]);
986 return -1;
987 }
988 else if (res) {
989 memprintf(err, "unexpected character '%c' in argument to <%s>.\n", *res, args[0]);
990 return -1;
991 }
992
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100993 if (strcmp(args[0], "clitcpka-intvl") == 0) {
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900994 if (!(proxy->cap & PR_CAP_FE)) {
995 memprintf(err, "%s will be ignored because %s '%s' has no frontend capability",
996 args[0], proxy_type_str(proxy), proxy->id);
997 retval = 1;
998 }
999 proxy->clitcpka_intvl = tcpka_intvl;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +01001000 } else if (strcmp(args[0], "srvtcpka-intvl") == 0) {
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +09001001 if (!(proxy->cap & PR_CAP_BE)) {
1002 memprintf(err, "%s will be ignored because %s '%s' has no backend capability",
1003 args[0], proxy_type_str(proxy), proxy->id);
1004 retval = 1;
1005 }
1006 proxy->srvtcpka_intvl = tcpka_intvl;
1007 } else {
1008 /* unreachable */
1009 memprintf(err, "'%s': unknown keyword", args[0]);
1010 return -1;
1011 }
1012
1013 return retval;
1014}
Willy Tarreau52543212020-07-09 05:58:51 +02001015#endif
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +09001016
Willy Tarreau0a0f6a72021-02-12 13:52:11 +01001017/* This function inserts proxy <px> into the tree of known proxies (regular
1018 * ones or defaults depending on px->cap & PR_CAP_DEF). The proxy's name is
1019 * used as the storing key so it must already have been initialized.
Willy Tarreauf79d9502014-03-15 07:22:35 +01001020 */
1021void proxy_store_name(struct proxy *px)
1022{
Willy Tarreau0a0f6a72021-02-12 13:52:11 +01001023 struct eb_root *root = (px->cap & PR_CAP_DEF) ? &defproxy_by_name : &proxy_by_name;
1024
Willy Tarreauf79d9502014-03-15 07:22:35 +01001025 px->conf.by_name.key = px->id;
Willy Tarreau0a0f6a72021-02-12 13:52:11 +01001026 ebis_insert(root, &px->conf.by_name);
Willy Tarreauf79d9502014-03-15 07:22:35 +01001027}
1028
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001029/* Returns a pointer to the first proxy matching capabilities <cap> and id
1030 * <id>. NULL is returned if no match is found. If <table> is non-zero, it
1031 * only considers proxies having a table.
Willy Tarreaubc216c42011-08-02 11:25:54 +02001032 */
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001033struct proxy *proxy_find_by_id(int id, int cap, int table)
Willy Tarreau9e0bb102015-05-26 11:24:42 +02001034{
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001035 struct eb32_node *n;
Willy Tarreaubc216c42011-08-02 11:25:54 +02001036
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001037 for (n = eb32_lookup(&used_proxy_id, id); n; n = eb32_next(n)) {
1038 struct proxy *px = container_of(n, struct proxy, conf.id);
Willy Tarreaucfd837f2014-03-15 07:43:51 +01001039
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001040 if (px->uuid != id)
1041 break;
Alex Williams96532db2009-11-01 21:27:13 -05001042
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001043 if ((px->cap & cap) != cap)
1044 continue;
Alex Williams96532db2009-11-01 21:27:13 -05001045
Frédéric Lécaille1b8e68e2019-03-14 07:07:41 +01001046 if (table && (!px->table || !px->table->size))
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001047 continue;
Willy Tarreaucfd837f2014-03-15 07:43:51 +01001048
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001049 return px;
1050 }
1051 return NULL;
1052}
Willy Tarreaucfd837f2014-03-15 07:43:51 +01001053
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001054/* Returns a pointer to the first proxy matching either name <name>, or id
1055 * <name> if <name> begins with a '#'. NULL is returned if no match is found.
Willy Tarreau0a0f6a72021-02-12 13:52:11 +01001056 * If <table> is non-zero, it only considers proxies having a table. The search
1057 * is made into the regular proxies, unless <cap> has PR_CAP_DEF set in which
1058 * case it's searched into the defproxy tree.
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001059 */
1060struct proxy *proxy_find_by_name(const char *name, int cap, int table)
1061{
1062 struct proxy *curproxy;
Willy Tarreau9e0bb102015-05-26 11:24:42 +02001063
Willy Tarreau0a0f6a72021-02-12 13:52:11 +01001064 if (*name == '#' && !(cap & PR_CAP_DEF)) {
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001065 curproxy = proxy_find_by_id(atoi(name + 1), cap, table);
1066 if (curproxy)
Willy Tarreauc739aa82015-05-26 11:35:41 +02001067 return curproxy;
Alex Williams96532db2009-11-01 21:27:13 -05001068 }
Willy Tarreaucfd837f2014-03-15 07:43:51 +01001069 else {
Willy Tarreau0a0f6a72021-02-12 13:52:11 +01001070 struct eb_root *root;
Willy Tarreaucfd837f2014-03-15 07:43:51 +01001071 struct ebpt_node *node;
1072
Willy Tarreau0a0f6a72021-02-12 13:52:11 +01001073 root = (cap & PR_CAP_DEF) ? &defproxy_by_name : &proxy_by_name;
1074 for (node = ebis_lookup(root, name); node; node = ebpt_next(node)) {
Willy Tarreaucfd837f2014-03-15 07:43:51 +01001075 curproxy = container_of(node, struct proxy, conf.by_name);
Alex Williams96532db2009-11-01 21:27:13 -05001076
Willy Tarreaucfd837f2014-03-15 07:43:51 +01001077 if (strcmp(curproxy->id, name) != 0)
1078 break;
1079
1080 if ((curproxy->cap & cap) != cap)
1081 continue;
1082
Frédéric Lécaille1b8e68e2019-03-14 07:07:41 +01001083 if (table && (!curproxy->table || !curproxy->table->size))
Willy Tarreau9e0bb102015-05-26 11:24:42 +02001084 continue;
1085
Willy Tarreauc739aa82015-05-26 11:35:41 +02001086 return curproxy;
Willy Tarreaucfd837f2014-03-15 07:43:51 +01001087 }
1088 }
Willy Tarreauc739aa82015-05-26 11:35:41 +02001089 return NULL;
Alex Williams96532db2009-11-01 21:27:13 -05001090}
1091
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001092/* Finds the best match for a proxy with capabilities <cap>, name <name> and id
1093 * <id>. At most one of <id> or <name> may be different provided that <cap> is
1094 * valid. Either <id> or <name> may be left unspecified (0). The purpose is to
1095 * find a proxy based on some information from a previous configuration, across
1096 * reloads or during information exchange between peers.
1097 *
1098 * Names are looked up first if present, then IDs are compared if present. In
1099 * case of an inexact match whatever is forced in the configuration has
1100 * precedence in the following order :
1101 * - 1) forced ID (proves a renaming / change of proxy type)
1102 * - 2) proxy name+type (may indicate a move if ID differs)
1103 * - 3) automatic ID+type (may indicate a renaming)
1104 *
1105 * Depending on what is found, we can end up in the following situations :
1106 *
1107 * name id cap | possible causes
1108 * -------------+-----------------
1109 * -- -- -- | nothing found
1110 * -- -- ok | nothing found
1111 * -- ok -- | proxy deleted, ID points to next one
1112 * -- ok ok | proxy renamed, or deleted with ID pointing to next one
1113 * ok -- -- | proxy deleted, but other half with same name still here (before)
1114 * ok -- ok | proxy's ID changed (proxy moved in the config file)
1115 * ok ok -- | proxy deleted, but other half with same name still here (after)
1116 * ok ok ok | perfect match
1117 *
1118 * Upon return if <diff> is not NULL, it is zeroed then filled with up to 3 bits :
Baptiste Assmann8a027cc2015-07-03 11:03:33 +02001119 * - PR_FBM_MISMATCH_ID : proxy was found but ID differs
1120 * (and ID was not zero)
1121 * - PR_FBM_MISMATCH_NAME : proxy was found by ID but name differs
1122 * (and name was not NULL)
1123 * - PR_FBM_MISMATCH_PROXYTYPE : a proxy of different type was found with
1124 * the same name and/or id
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001125 *
1126 * Only a valid proxy is returned. If capabilities do not match, NULL is
1127 * returned. The caller can check <diff> to report detailed warnings / errors,
1128 * and decide whether or not to use what was found.
1129 */
1130struct proxy *proxy_find_best_match(int cap, const char *name, int id, int *diff)
1131{
1132 struct proxy *byname;
1133 struct proxy *byid;
1134
1135 if (!name && !id)
1136 return NULL;
1137
1138 if (diff)
1139 *diff = 0;
1140
1141 byname = byid = NULL;
1142
1143 if (name) {
1144 byname = proxy_find_by_name(name, cap, 0);
1145 if (byname && (!id || byname->uuid == id))
1146 return byname;
1147 }
1148
Joseph Herlant59dd2952018-11-15 11:46:55 -08001149 /* remaining possibilities :
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001150 * - name not set
1151 * - name set but not found
1152 * - name found, but ID doesn't match.
1153 */
1154 if (id) {
1155 byid = proxy_find_by_id(id, cap, 0);
1156 if (byid) {
1157 if (byname) {
1158 /* id+type found, name+type found, but not all 3.
1159 * ID wins only if forced, otherwise name wins.
1160 */
1161 if (byid->options & PR_O_FORCED_ID) {
1162 if (diff)
Baptiste Assmann8a027cc2015-07-03 11:03:33 +02001163 *diff |= PR_FBM_MISMATCH_NAME;
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001164 return byid;
1165 }
1166 else {
1167 if (diff)
Baptiste Assmann8a027cc2015-07-03 11:03:33 +02001168 *diff |= PR_FBM_MISMATCH_ID;
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001169 return byname;
1170 }
1171 }
1172
Joseph Herlant59dd2952018-11-15 11:46:55 -08001173 /* remaining possibilities :
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001174 * - name not set
1175 * - name set but not found
1176 */
1177 if (name && diff)
Baptiste Assmann8a027cc2015-07-03 11:03:33 +02001178 *diff |= PR_FBM_MISMATCH_NAME;
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001179 return byid;
1180 }
1181
1182 /* ID not found */
1183 if (byname) {
1184 if (diff)
Baptiste Assmann8a027cc2015-07-03 11:03:33 +02001185 *diff |= PR_FBM_MISMATCH_ID;
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001186 return byname;
1187 }
1188 }
1189
Joseph Herlant59dd2952018-11-15 11:46:55 -08001190 /* All remaining possibilities will lead to NULL. If we can report more
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001191 * detailed information to the caller about changed types and/or name,
1192 * we'll do it. For example, we could detect that "listen foo" was
1193 * split into "frontend foo_ft" and "backend foo_bk" if IDs are forced.
1194 * - name not set, ID not found
1195 * - name not found, ID not set
1196 * - name not found, ID not found
1197 */
1198 if (!diff)
1199 return NULL;
1200
1201 if (name) {
1202 byname = proxy_find_by_name(name, 0, 0);
1203 if (byname && (!id || byname->uuid == id))
Baptiste Assmann8a027cc2015-07-03 11:03:33 +02001204 *diff |= PR_FBM_MISMATCH_PROXYTYPE;
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001205 }
1206
1207 if (id) {
1208 byid = proxy_find_by_id(id, 0, 0);
1209 if (byid) {
1210 if (!name)
Baptiste Assmann8a027cc2015-07-03 11:03:33 +02001211 *diff |= PR_FBM_MISMATCH_PROXYTYPE; /* only type changed */
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001212 else if (byid->options & PR_O_FORCED_ID)
Baptiste Assmann8a027cc2015-07-03 11:03:33 +02001213 *diff |= PR_FBM_MISMATCH_NAME | PR_FBM_MISMATCH_PROXYTYPE; /* name and type changed */
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001214 /* otherwise it's a different proxy that was returned */
1215 }
1216 }
1217 return NULL;
1218}
1219
Willy Tarreaubaaee002006-06-26 02:48:02 +02001220/*
Krzysztof Piotr Oledzkic8b16fc2008-02-18 01:26:35 +01001221 * This function finds a server with matching name within selected proxy.
1222 * It also checks if there are more matching servers with
1223 * requested name as this often leads into unexpected situations.
1224 */
1225
1226struct server *findserver(const struct proxy *px, const char *name) {
1227
1228 struct server *cursrv, *target = NULL;
1229
1230 if (!px)
1231 return NULL;
1232
1233 for (cursrv = px->srv; cursrv; cursrv = cursrv->next) {
Tim Duesterhuse5ff1412021-01-02 22:31:53 +01001234 if (strcmp(cursrv->id, name) != 0)
Krzysztof Piotr Oledzkic8b16fc2008-02-18 01:26:35 +01001235 continue;
1236
1237 if (!target) {
1238 target = cursrv;
1239 continue;
1240 }
1241
Christopher Faulet767a84b2017-11-24 16:50:31 +01001242 ha_alert("Refusing to use duplicated server '%s' found in proxy: %s!\n",
1243 name, px->id);
Krzysztof Piotr Oledzkic8b16fc2008-02-18 01:26:35 +01001244
1245 return NULL;
1246 }
1247
1248 return target;
1249}
1250
Willy Tarreauff01a212009-03-15 13:46:16 +01001251/* This function checks that the designated proxy has no http directives
1252 * enabled. It will output a warning if there are, and will fix some of them.
1253 * It returns the number of fatal errors encountered. This should be called
1254 * at the end of the configuration parsing if the proxy is not in http mode.
1255 * The <file> argument is used to construct the error message.
1256 */
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001257int proxy_cfg_ensure_no_http(struct proxy *curproxy)
Willy Tarreauff01a212009-03-15 13:46:16 +01001258{
1259 if (curproxy->cookie_name != NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001260 ha_warning("config : cookie will be ignored for %s '%s' (needs 'mode http').\n",
1261 proxy_type_str(curproxy), curproxy->id);
Willy Tarreauff01a212009-03-15 13:46:16 +01001262 }
Willy Tarreauff01a212009-03-15 13:46:16 +01001263 if (curproxy->monitor_uri != NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001264 ha_warning("config : monitor-uri will be ignored for %s '%s' (needs 'mode http').\n",
1265 proxy_type_str(curproxy), curproxy->id);
Willy Tarreauff01a212009-03-15 13:46:16 +01001266 }
Willy Tarreauf3e49f92009-10-03 12:21:20 +02001267 if (curproxy->lbprm.algo & BE_LB_NEED_HTTP) {
Willy Tarreauff01a212009-03-15 13:46:16 +01001268 curproxy->lbprm.algo &= ~BE_LB_ALGO;
1269 curproxy->lbprm.algo |= BE_LB_ALGO_RR;
Christopher Faulet767a84b2017-11-24 16:50:31 +01001270 ha_warning("config : Layer 7 hash not possible for %s '%s' (needs 'mode http'). Falling back to round robin.\n",
1271 proxy_type_str(curproxy), curproxy->id);
Willy Tarreauff01a212009-03-15 13:46:16 +01001272 }
Willy Tarreau17804162009-11-09 21:27:51 +01001273 if (curproxy->to_log & (LW_REQ | LW_RESP)) {
1274 curproxy->to_log &= ~(LW_REQ | LW_RESP);
Christopher Faulet767a84b2017-11-24 16:50:31 +01001275 ha_warning("parsing [%s:%d] : HTTP log/header format not usable with %s '%s' (needs 'mode http').\n",
1276 curproxy->conf.lfs_file, curproxy->conf.lfs_line,
1277 proxy_type_str(curproxy), curproxy->id);
Willy Tarreau17804162009-11-09 21:27:51 +01001278 }
Willy Tarreau62a61232013-04-12 18:13:46 +02001279 if (curproxy->conf.logformat_string == default_http_log_format ||
1280 curproxy->conf.logformat_string == clf_http_log_format) {
1281 /* Note: we don't change the directive's file:line number */
1282 curproxy->conf.logformat_string = default_tcp_log_format;
Christopher Faulet767a84b2017-11-24 16:50:31 +01001283 ha_warning("parsing [%s:%d] : 'option httplog' not usable with %s '%s' (needs 'mode http'). Falling back to 'option tcplog'.\n",
1284 curproxy->conf.lfs_file, curproxy->conf.lfs_line,
1285 proxy_type_str(curproxy), curproxy->id);
Willy Tarreau196729e2012-05-31 19:30:26 +02001286 }
1287
Willy Tarreauff01a212009-03-15 13:46:16 +01001288 return 0;
1289}
1290
Willy Tarreau237250c2011-07-29 01:49:03 +02001291/* Perform the most basic initialization of a proxy :
1292 * memset(), list_init(*), reset_timeouts(*).
Willy Tarreaub249e842011-09-07 18:41:08 +02001293 * Any new proxy or peer should be initialized via this function.
Willy Tarreau237250c2011-07-29 01:49:03 +02001294 */
1295void init_new_proxy(struct proxy *p)
1296{
1297 memset(p, 0, sizeof(struct proxy));
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001298 p->obj_type = OBJ_TYPE_PROXY;
Patrick Hemmer0355dab2018-05-11 12:52:31 -04001299 p->pendconns = EB_ROOT;
Willy Tarreau237250c2011-07-29 01:49:03 +02001300 LIST_INIT(&p->acl);
1301 LIST_INIT(&p->http_req_rules);
Willy Tarreaue365c0b2013-06-11 16:06:12 +02001302 LIST_INIT(&p->http_res_rules);
Christopher Faulet6d0c3df2020-01-22 09:26:35 +01001303 LIST_INIT(&p->http_after_res_rules);
Willy Tarreau237250c2011-07-29 01:49:03 +02001304 LIST_INIT(&p->redirect_rules);
1305 LIST_INIT(&p->mon_fail_cond);
1306 LIST_INIT(&p->switching_rules);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001307 LIST_INIT(&p->server_rules);
Willy Tarreau237250c2011-07-29 01:49:03 +02001308 LIST_INIT(&p->persist_rules);
1309 LIST_INIT(&p->sticking_rules);
1310 LIST_INIT(&p->storersp_rules);
1311 LIST_INIT(&p->tcp_req.inspect_rules);
1312 LIST_INIT(&p->tcp_rep.inspect_rules);
1313 LIST_INIT(&p->tcp_req.l4_rules);
Willy Tarreau620408f2016-10-21 16:37:51 +02001314 LIST_INIT(&p->tcp_req.l5_rules);
Olivier Houchard859dc802019-08-08 15:47:21 +02001315 MT_LIST_INIT(&p->listener_queue);
William Lallemand0f99e342011-10-12 17:50:54 +02001316 LIST_INIT(&p->logsrvs);
William Lallemand723b73a2012-02-08 16:37:49 +01001317 LIST_INIT(&p->logformat);
Dragan Dosen0b85ece2015-09-25 19:17:44 +02001318 LIST_INIT(&p->logformat_sd);
William Lallemanda73203e2012-03-12 12:48:57 +01001319 LIST_INIT(&p->format_unique_id);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001320 LIST_INIT(&p->conf.bind);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001321 LIST_INIT(&p->conf.listeners);
Christopher Faulet76edc0f2020-01-13 15:52:01 +01001322 LIST_INIT(&p->conf.errors);
Willy Tarreaua4312fa2013-04-02 16:34:32 +02001323 LIST_INIT(&p->conf.args.list);
Christopher Faulet443ea1a2016-02-04 13:40:26 +01001324 LIST_INIT(&p->filter_configs);
Christopher Faulet7a1e2e12020-04-02 18:05:11 +02001325 LIST_INIT(&p->tcpcheck_rules.preset_vars);
Willy Tarreau237250c2011-07-29 01:49:03 +02001326
Willy Tarreau3b06eae2021-02-12 09:15:16 +01001327 p->defsrv.id = "default-server";
1328 p->conf.used_listener_id = EB_ROOT;
1329 p->conf.used_server_id = EB_ROOT;
1330 p->used_server_addr = EB_ROOT_UNIQUE;
1331
Willy Tarreau237250c2011-07-29 01:49:03 +02001332 /* Timeouts are defined as -1 */
1333 proxy_reset_timeouts(p);
1334 p->tcp_rep.inspect_delay = TICK_ETERNITY;
Willy Tarreau050536d2012-10-04 08:47:34 +02001335
1336 /* initial uuid is unassigned (-1) */
1337 p->uuid = -1;
Christopher Fauletff8abcd2017-06-02 15:33:24 +02001338
Olivier Houcharda254a372019-04-05 15:30:12 +02001339 /* Default to only allow L4 retries */
1340 p->retry_type = PR_RE_CONN_FAILED;
1341
Amaury Denoyelle7f8f6cb2020-11-10 14:24:31 +01001342 p->extra_counters_fe = NULL;
1343 p->extra_counters_be = NULL;
1344
Willy Tarreauac66d6b2020-10-20 17:24:27 +02001345 HA_RWLOCK_INIT(&p->lock);
Willy Tarreau237250c2011-07-29 01:49:03 +02001346}
1347
Willy Tarreau144289b2021-02-12 08:19:01 +01001348/* Preset default settings onto proxy <defproxy>. */
1349void proxy_preset_defaults(struct proxy *defproxy)
1350{
1351 defproxy->mode = PR_MODE_TCP;
1352 defproxy->disabled = 0;
Amaury Denoyelle6f26fae2021-03-24 10:49:34 +01001353 if (!(defproxy->cap & PR_CAP_LUA)) {
1354 defproxy->maxconn = cfg_maxpconn;
1355 defproxy->conn_retries = CONN_RETRIES;
1356 }
Willy Tarreau144289b2021-02-12 08:19:01 +01001357 defproxy->redispatch_after = 0;
1358 defproxy->options = PR_O_REUSE_SAFE;
Amaury Denoyelle6f26fae2021-03-24 10:49:34 +01001359 if (defproxy->cap & PR_CAP_LUA)
1360 defproxy->options2 |= PR_O2_INDEPSTR;
Willy Tarreau144289b2021-02-12 08:19:01 +01001361 defproxy->max_out_conns = MAX_SRV_LIST;
1362
1363 defproxy->defsrv.check.inter = DEF_CHKINTR;
1364 defproxy->defsrv.check.fastinter = 0;
1365 defproxy->defsrv.check.downinter = 0;
1366 defproxy->defsrv.agent.inter = DEF_CHKINTR;
1367 defproxy->defsrv.agent.fastinter = 0;
1368 defproxy->defsrv.agent.downinter = 0;
1369 defproxy->defsrv.check.rise = DEF_RISETIME;
1370 defproxy->defsrv.check.fall = DEF_FALLTIME;
1371 defproxy->defsrv.agent.rise = DEF_AGENT_RISETIME;
1372 defproxy->defsrv.agent.fall = DEF_AGENT_FALLTIME;
1373 defproxy->defsrv.check.port = 0;
1374 defproxy->defsrv.agent.port = 0;
1375 defproxy->defsrv.maxqueue = 0;
1376 defproxy->defsrv.minconn = 0;
1377 defproxy->defsrv.maxconn = 0;
1378 defproxy->defsrv.max_reuse = -1;
1379 defproxy->defsrv.max_idle_conns = -1;
1380 defproxy->defsrv.pool_purge_delay = 5000;
1381 defproxy->defsrv.slowstart = 0;
1382 defproxy->defsrv.onerror = DEF_HANA_ONERR;
1383 defproxy->defsrv.consecutive_errors_limit = DEF_HANA_ERRLIMIT;
1384 defproxy->defsrv.uweight = defproxy->defsrv.iweight = 1;
1385
1386 defproxy->email_alert.level = LOG_ALERT;
1387 defproxy->load_server_state_from_file = PR_SRV_STATE_FILE_UNSPEC;
1388#if defined(USE_QUIC)
1389 quic_transport_params_init(&defproxy->defsrv.quic_params, 0);
1390#endif
Amaury Denoyelle6f26fae2021-03-24 10:49:34 +01001391
1392 if (defproxy->cap & PR_CAP_LUA)
1393 defproxy->timeout.connect = 5000;
Willy Tarreau144289b2021-02-12 08:19:01 +01001394}
1395
Willy Tarreaua3320a02021-02-12 10:38:49 +01001396/* Frees all dynamic settings allocated on a default proxy that's about to be
1397 * destroyed. This is a subset of the complete proxy deinit code, but these
1398 * should probably be merged ultimately. Note that most of the fields are not
1399 * even reset, so extreme care is required here, and calling
1400 * proxy_preset_defaults() afterwards would be safer.
1401 */
1402void proxy_free_defaults(struct proxy *defproxy)
1403{
Willy Tarreau61cfdf42021-02-20 10:46:51 +01001404 ha_free(&defproxy->id);
1405 ha_free(&defproxy->conf.file);
1406 ha_free(&defproxy->check_command);
1407 ha_free(&defproxy->check_path);
1408 ha_free(&defproxy->cookie_name);
1409 ha_free(&defproxy->rdp_cookie_name);
1410 ha_free(&defproxy->dyncookie_key);
1411 ha_free(&defproxy->cookie_domain);
1412 ha_free(&defproxy->cookie_attrs);
1413 ha_free(&defproxy->lbprm.arg_str);
1414 ha_free(&defproxy->capture_name);
1415 ha_free(&defproxy->monitor_uri);
1416 ha_free(&defproxy->defbe.name);
1417 ha_free(&defproxy->conn_src.iface_name);
1418 ha_free(&defproxy->fwdfor_hdr_name); defproxy->fwdfor_hdr_len = 0;
1419 ha_free(&defproxy->orgto_hdr_name); defproxy->orgto_hdr_len = 0;
1420 ha_free(&defproxy->server_id_hdr_name); defproxy->server_id_hdr_len = 0;
Willy Tarreaua3320a02021-02-12 10:38:49 +01001421
1422 if (defproxy->conf.logformat_string != default_http_log_format &&
1423 defproxy->conf.logformat_string != default_tcp_log_format &&
Willy Tarreau818ec782021-02-12 10:48:53 +01001424 defproxy->conf.logformat_string != clf_http_log_format) {
Willy Tarreau61cfdf42021-02-20 10:46:51 +01001425 ha_free(&defproxy->conf.logformat_string);
Willy Tarreau818ec782021-02-12 10:48:53 +01001426 }
Willy Tarreaua3320a02021-02-12 10:38:49 +01001427
Willy Tarreau61cfdf42021-02-20 10:46:51 +01001428 if (defproxy->conf.logformat_sd_string != default_rfc5424_sd_log_format)
1429 ha_free(&defproxy->conf.logformat_sd_string);
Willy Tarreaua3320a02021-02-12 10:38:49 +01001430
Willy Tarreau61cfdf42021-02-20 10:46:51 +01001431 ha_free(&defproxy->conf.uniqueid_format_string);
1432 ha_free(&defproxy->conf.lfs_file);
1433 ha_free(&defproxy->conf.lfsd_file);
1434 ha_free(&defproxy->conf.uif_file);
Willy Tarreaua3320a02021-02-12 10:38:49 +01001435 chunk_destroy(&defproxy->log_tag);
1436
1437 free_email_alert(defproxy);
1438 proxy_release_conf_errors(defproxy);
1439 deinit_proxy_tcpcheck(defproxy);
1440
1441 /* FIXME: we cannot free uri_auth because it might already be used by
1442 * another proxy (legacy code for stats URI ...). Refcount anyone ?
1443 */
1444}
1445
Willy Tarreau0a0f6a72021-02-12 13:52:11 +01001446/* delete a defproxy from the tree if still in it, frees its content and its
1447 * storage. Nothing is done if <px> is NULL or if it doesn't have PR_CAP_DEF
1448 * set, allowing to pass it the direct result of a lookup function.
1449 */
1450void proxy_destroy_defaults(struct proxy *px)
1451{
1452 if (!px)
1453 return;
1454 if (!(px->cap & PR_CAP_DEF))
1455 return;
1456 ebpt_delete(&px->conf.by_name);
1457 proxy_free_defaults(px);
1458 free(px);
1459}
1460
Willy Tarreaue90904d2021-02-12 14:08:31 +01001461void proxy_destroy_all_defaults()
1462{
1463 struct ebpt_node *n;
1464
1465 while ((n = ebpt_first(&defproxy_by_name))) {
1466 struct proxy *px = container_of(n, struct proxy, conf.by_name);
1467 BUG_ON(!(px->cap & PR_CAP_DEF));
1468 proxy_destroy_defaults(px);
1469 }
1470}
1471
Amaury Denoyelle476b9ad2021-03-23 17:27:05 +01001472/* Allocates a new proxy <name> of type <cap>.
1473 * Returns the proxy instance on success. On error, NULL is returned.
Willy Tarreau76838932021-02-12 08:49:47 +01001474 */
Amaury Denoyelle476b9ad2021-03-23 17:27:05 +01001475struct proxy *alloc_new_proxy(const char *name, unsigned int cap, char **errmsg)
Willy Tarreau76838932021-02-12 08:49:47 +01001476{
Willy Tarreau76838932021-02-12 08:49:47 +01001477 struct proxy *curproxy;
Willy Tarreau76838932021-02-12 08:49:47 +01001478
1479 if ((curproxy = calloc(1, sizeof(*curproxy))) == NULL) {
1480 memprintf(errmsg, "proxy '%s': out of memory", name);
1481 goto fail;
1482 }
1483
1484 init_new_proxy(curproxy);
Willy Tarreau76838932021-02-12 08:49:47 +01001485 curproxy->last_change = now.tv_sec;
1486 curproxy->id = strdup(name);
1487 curproxy->cap = cap;
Amaury Denoyelle6f26fae2021-03-24 10:49:34 +01001488
1489 if (!(cap & PR_CAP_LUA))
1490 proxy_store_name(curproxy);
Willy Tarreau76838932021-02-12 08:49:47 +01001491
Amaury Denoyelle476b9ad2021-03-23 17:27:05 +01001492 done:
1493 return curproxy;
1494
1495 fail:
1496 /* Note: in case of fatal error here, we WILL make valgrind unhappy,
1497 * but its not worth trying to unroll everything here just before
1498 * quitting.
1499 */
1500 free(curproxy);
1501 return NULL;
1502}
1503
1504/* Copy the proxy settings from <defproxy> to <curproxy>.
1505 * Returns 0 on success.
1506 * Returns 1 on error. <errmsg> will be allocated with an error description.
1507 */
1508static int proxy_defproxy_cpy(struct proxy *curproxy, const struct proxy *defproxy,
1509 char **errmsg)
1510{
1511 struct logsrv *tmplogsrv;
1512 char *tmpmsg = NULL;
Willy Tarreau3b06eae2021-02-12 09:15:16 +01001513
1514 /* set default values from the specified default proxy */
Willy Tarreau76838932021-02-12 08:49:47 +01001515 memcpy(&curproxy->defsrv, &defproxy->defsrv, sizeof(curproxy->defsrv));
Willy Tarreau76838932021-02-12 08:49:47 +01001516
1517 curproxy->disabled = defproxy->disabled;
1518 curproxy->options = defproxy->options;
1519 curproxy->options2 = defproxy->options2;
1520 curproxy->no_options = defproxy->no_options;
1521 curproxy->no_options2 = defproxy->no_options2;
1522 curproxy->bind_proc = defproxy->bind_proc;
Christopher Faulet5d1def62021-02-26 09:19:15 +01001523 curproxy->except_xff_net = defproxy->except_xff_net;
1524 curproxy->except_xot_net = defproxy->except_xot_net;
Willy Tarreau76838932021-02-12 08:49:47 +01001525 curproxy->retry_type = defproxy->retry_type;
1526
1527 if (defproxy->fwdfor_hdr_len) {
1528 curproxy->fwdfor_hdr_len = defproxy->fwdfor_hdr_len;
1529 curproxy->fwdfor_hdr_name = strdup(defproxy->fwdfor_hdr_name);
1530 }
1531
1532 if (defproxy->orgto_hdr_len) {
1533 curproxy->orgto_hdr_len = defproxy->orgto_hdr_len;
1534 curproxy->orgto_hdr_name = strdup(defproxy->orgto_hdr_name);
1535 }
1536
1537 if (defproxy->server_id_hdr_len) {
1538 curproxy->server_id_hdr_len = defproxy->server_id_hdr_len;
1539 curproxy->server_id_hdr_name = strdup(defproxy->server_id_hdr_name);
1540 }
1541
1542 /* initialize error relocations */
1543 if (!proxy_dup_default_conf_errors(curproxy, defproxy, &tmpmsg)) {
1544 memprintf(errmsg, "proxy '%s' : %s", curproxy->id, tmpmsg);
Amaury Denoyelle476b9ad2021-03-23 17:27:05 +01001545 free(tmpmsg);
1546 return 1;
Willy Tarreau76838932021-02-12 08:49:47 +01001547 }
1548
1549 if (curproxy->cap & PR_CAP_FE) {
1550 curproxy->maxconn = defproxy->maxconn;
1551 curproxy->backlog = defproxy->backlog;
1552 curproxy->fe_sps_lim = defproxy->fe_sps_lim;
1553
1554 curproxy->to_log = defproxy->to_log & ~LW_COOKIE & ~LW_REQHDR & ~ LW_RSPHDR;
1555 curproxy->max_out_conns = defproxy->max_out_conns;
1556
1557 curproxy->clitcpka_cnt = defproxy->clitcpka_cnt;
1558 curproxy->clitcpka_idle = defproxy->clitcpka_idle;
1559 curproxy->clitcpka_intvl = defproxy->clitcpka_intvl;
1560 }
1561
1562 if (curproxy->cap & PR_CAP_BE) {
1563 curproxy->lbprm.algo = defproxy->lbprm.algo;
1564 curproxy->lbprm.hash_balance_factor = defproxy->lbprm.hash_balance_factor;
1565 curproxy->fullconn = defproxy->fullconn;
1566 curproxy->conn_retries = defproxy->conn_retries;
1567 curproxy->redispatch_after = defproxy->redispatch_after;
1568 curproxy->max_ka_queue = defproxy->max_ka_queue;
1569
1570 curproxy->tcpcheck_rules.flags = (defproxy->tcpcheck_rules.flags & ~TCPCHK_RULES_UNUSED_RS);
1571 curproxy->tcpcheck_rules.list = defproxy->tcpcheck_rules.list;
1572 if (!LIST_ISEMPTY(&defproxy->tcpcheck_rules.preset_vars)) {
1573 if (!dup_tcpcheck_vars(&curproxy->tcpcheck_rules.preset_vars,
1574 &defproxy->tcpcheck_rules.preset_vars)) {
Amaury Denoyelle476b9ad2021-03-23 17:27:05 +01001575 memprintf(errmsg, "proxy '%s': failed to duplicate tcpcheck preset-vars", curproxy->id);
1576 return 1;
Willy Tarreau76838932021-02-12 08:49:47 +01001577 }
1578 }
1579
1580 curproxy->ck_opts = defproxy->ck_opts;
1581 if (defproxy->cookie_name)
1582 curproxy->cookie_name = strdup(defproxy->cookie_name);
1583 curproxy->cookie_len = defproxy->cookie_len;
1584
1585 if (defproxy->dyncookie_key)
1586 curproxy->dyncookie_key = strdup(defproxy->dyncookie_key);
1587 if (defproxy->cookie_domain)
1588 curproxy->cookie_domain = strdup(defproxy->cookie_domain);
1589
1590 if (defproxy->cookie_maxidle)
1591 curproxy->cookie_maxidle = defproxy->cookie_maxidle;
1592
1593 if (defproxy->cookie_maxlife)
1594 curproxy->cookie_maxlife = defproxy->cookie_maxlife;
1595
1596 if (defproxy->rdp_cookie_name)
1597 curproxy->rdp_cookie_name = strdup(defproxy->rdp_cookie_name);
1598 curproxy->rdp_cookie_len = defproxy->rdp_cookie_len;
1599
1600 if (defproxy->cookie_attrs)
1601 curproxy->cookie_attrs = strdup(defproxy->cookie_attrs);
1602
1603 if (defproxy->lbprm.arg_str)
1604 curproxy->lbprm.arg_str = strdup(defproxy->lbprm.arg_str);
1605 curproxy->lbprm.arg_len = defproxy->lbprm.arg_len;
1606 curproxy->lbprm.arg_opt1 = defproxy->lbprm.arg_opt1;
1607 curproxy->lbprm.arg_opt2 = defproxy->lbprm.arg_opt2;
1608 curproxy->lbprm.arg_opt3 = defproxy->lbprm.arg_opt3;
1609
1610 if (defproxy->conn_src.iface_name)
1611 curproxy->conn_src.iface_name = strdup(defproxy->conn_src.iface_name);
1612 curproxy->conn_src.iface_len = defproxy->conn_src.iface_len;
1613 curproxy->conn_src.opts = defproxy->conn_src.opts;
1614#if defined(CONFIG_HAP_TRANSPARENT)
1615 curproxy->conn_src.tproxy_addr = defproxy->conn_src.tproxy_addr;
1616#endif
1617 curproxy->load_server_state_from_file = defproxy->load_server_state_from_file;
1618
1619 curproxy->srvtcpka_cnt = defproxy->srvtcpka_cnt;
1620 curproxy->srvtcpka_idle = defproxy->srvtcpka_idle;
1621 curproxy->srvtcpka_intvl = defproxy->srvtcpka_intvl;
1622 }
1623
1624 if (curproxy->cap & PR_CAP_FE) {
1625 if (defproxy->capture_name)
1626 curproxy->capture_name = strdup(defproxy->capture_name);
1627 curproxy->capture_namelen = defproxy->capture_namelen;
1628 curproxy->capture_len = defproxy->capture_len;
1629 }
1630
1631 if (curproxy->cap & PR_CAP_FE) {
1632 curproxy->timeout.client = defproxy->timeout.client;
1633 curproxy->timeout.clientfin = defproxy->timeout.clientfin;
1634 curproxy->timeout.tarpit = defproxy->timeout.tarpit;
1635 curproxy->timeout.httpreq = defproxy->timeout.httpreq;
1636 curproxy->timeout.httpka = defproxy->timeout.httpka;
1637 if (defproxy->monitor_uri)
1638 curproxy->monitor_uri = strdup(defproxy->monitor_uri);
1639 curproxy->monitor_uri_len = defproxy->monitor_uri_len;
1640 if (defproxy->defbe.name)
1641 curproxy->defbe.name = strdup(defproxy->defbe.name);
1642
1643 /* get either a pointer to the logformat string or a copy of it */
1644 curproxy->conf.logformat_string = defproxy->conf.logformat_string;
1645 if (curproxy->conf.logformat_string &&
1646 curproxy->conf.logformat_string != default_http_log_format &&
1647 curproxy->conf.logformat_string != default_tcp_log_format &&
1648 curproxy->conf.logformat_string != clf_http_log_format)
1649 curproxy->conf.logformat_string = strdup(curproxy->conf.logformat_string);
1650
1651 if (defproxy->conf.lfs_file) {
1652 curproxy->conf.lfs_file = strdup(defproxy->conf.lfs_file);
1653 curproxy->conf.lfs_line = defproxy->conf.lfs_line;
1654 }
1655
1656 /* get either a pointer to the logformat string for RFC5424 structured-data or a copy of it */
1657 curproxy->conf.logformat_sd_string = defproxy->conf.logformat_sd_string;
1658 if (curproxy->conf.logformat_sd_string &&
1659 curproxy->conf.logformat_sd_string != default_rfc5424_sd_log_format)
1660 curproxy->conf.logformat_sd_string = strdup(curproxy->conf.logformat_sd_string);
1661
1662 if (defproxy->conf.lfsd_file) {
1663 curproxy->conf.lfsd_file = strdup(defproxy->conf.lfsd_file);
1664 curproxy->conf.lfsd_line = defproxy->conf.lfsd_line;
1665 }
1666 }
1667
1668 if (curproxy->cap & PR_CAP_BE) {
1669 curproxy->timeout.connect = defproxy->timeout.connect;
1670 curproxy->timeout.server = defproxy->timeout.server;
1671 curproxy->timeout.serverfin = defproxy->timeout.serverfin;
1672 curproxy->timeout.check = defproxy->timeout.check;
1673 curproxy->timeout.queue = defproxy->timeout.queue;
1674 curproxy->timeout.tarpit = defproxy->timeout.tarpit;
1675 curproxy->timeout.httpreq = defproxy->timeout.httpreq;
1676 curproxy->timeout.httpka = defproxy->timeout.httpka;
1677 curproxy->timeout.tunnel = defproxy->timeout.tunnel;
1678 curproxy->conn_src.source_addr = defproxy->conn_src.source_addr;
1679 }
1680
1681 curproxy->mode = defproxy->mode;
1682 curproxy->uri_auth = defproxy->uri_auth; /* for stats */
1683
1684 /* copy default logsrvs to curproxy */
1685 list_for_each_entry(tmplogsrv, &defproxy->logsrvs, list) {
1686 struct logsrv *node = malloc(sizeof(*node));
1687
1688 if (!node) {
Amaury Denoyelle476b9ad2021-03-23 17:27:05 +01001689 memprintf(errmsg, "proxy '%s': out of memory", curproxy->id);
1690 return 1;
Willy Tarreau76838932021-02-12 08:49:47 +01001691 }
1692 memcpy(node, tmplogsrv, sizeof(struct logsrv));
1693 node->ref = tmplogsrv->ref;
1694 LIST_INIT(&node->list);
Willy Tarreau2b718102021-04-21 07:32:39 +02001695 LIST_APPEND(&curproxy->logsrvs, &node->list);
Willy Tarreau76838932021-02-12 08:49:47 +01001696 }
1697
1698 curproxy->conf.uniqueid_format_string = defproxy->conf.uniqueid_format_string;
1699 if (curproxy->conf.uniqueid_format_string)
1700 curproxy->conf.uniqueid_format_string = strdup(curproxy->conf.uniqueid_format_string);
1701
1702 chunk_dup(&curproxy->log_tag, &defproxy->log_tag);
1703
1704 if (defproxy->conf.uif_file) {
1705 curproxy->conf.uif_file = strdup(defproxy->conf.uif_file);
1706 curproxy->conf.uif_line = defproxy->conf.uif_line;
1707 }
1708
1709 /* copy default header unique id */
1710 if (isttest(defproxy->header_unique_id)) {
1711 const struct ist copy = istdup(defproxy->header_unique_id);
1712
1713 if (!isttest(copy)) {
Amaury Denoyelle476b9ad2021-03-23 17:27:05 +01001714 memprintf(errmsg, "proxy '%s': out of memory for unique-id-header", curproxy->id);
1715 return 1;
Willy Tarreau76838932021-02-12 08:49:47 +01001716 }
1717 curproxy->header_unique_id = copy;
1718 }
1719
1720 /* default compression options */
1721 if (defproxy->comp != NULL) {
1722 curproxy->comp = calloc(1, sizeof(*curproxy->comp));
Remi Tricot-Le Breton4d8e20f2021-05-12 18:07:27 +02001723 if (!curproxy->comp) {
1724 memprintf(errmsg, "proxy '%s': out of memory for default compression options", curproxy->id);
1725 return 1;
1726 }
Willy Tarreau76838932021-02-12 08:49:47 +01001727 curproxy->comp->algos = defproxy->comp->algos;
1728 curproxy->comp->types = defproxy->comp->types;
1729 }
1730
1731 curproxy->grace = defproxy->grace;
Willy Tarreau76838932021-02-12 08:49:47 +01001732
1733 if (defproxy->check_path)
1734 curproxy->check_path = strdup(defproxy->check_path);
1735 if (defproxy->check_command)
1736 curproxy->check_command = strdup(defproxy->check_command);
1737
1738 if (defproxy->email_alert.mailers.name)
1739 curproxy->email_alert.mailers.name = strdup(defproxy->email_alert.mailers.name);
1740 if (defproxy->email_alert.from)
1741 curproxy->email_alert.from = strdup(defproxy->email_alert.from);
1742 if (defproxy->email_alert.to)
1743 curproxy->email_alert.to = strdup(defproxy->email_alert.to);
1744 if (defproxy->email_alert.myhostname)
1745 curproxy->email_alert.myhostname = strdup(defproxy->email_alert.myhostname);
1746 curproxy->email_alert.level = defproxy->email_alert.level;
1747 curproxy->email_alert.set = defproxy->email_alert.set;
Willy Tarreau3b06eae2021-02-12 09:15:16 +01001748
Amaury Denoyelle476b9ad2021-03-23 17:27:05 +01001749 return 0;
1750}
1751
1752/* Allocates a new proxy <name> of type <cap> found at position <file:linenum>,
1753 * preset it from the defaults of <defproxy> and returns it. In case of error,
1754 * an alert is printed and NULL is returned.
1755 */
1756struct proxy *parse_new_proxy(const char *name, unsigned int cap,
1757 const char *file, int linenum,
1758 const struct proxy *defproxy)
1759{
1760 struct proxy *curproxy = NULL;
Willy Tarreaucad2ff22022-02-24 16:37:19 +01001761 char *errmsg = NULL;
Amaury Denoyelle476b9ad2021-03-23 17:27:05 +01001762
1763 if (!(curproxy = alloc_new_proxy(name, cap, &errmsg))) {
1764 ha_alert("parsing [%s:%d] : %s\n", file, linenum, errmsg);
1765 free(errmsg);
1766 return NULL;
1767 }
1768
1769 if (defproxy) {
1770 if (proxy_defproxy_cpy(curproxy, defproxy, &errmsg)) {
1771 ha_alert("parsing [%s:%d] : %s\n", file, linenum, errmsg);
1772 free(errmsg);
1773
1774 ha_free(&curproxy);
1775 return NULL;
1776 }
1777 }
1778 else {
1779 proxy_preset_defaults(curproxy);
1780 }
1781
1782 curproxy->conf.args.file = curproxy->conf.file = strdup(file);
1783 curproxy->conf.args.line = curproxy->conf.line = linenum;
1784
Willy Tarreau76838932021-02-12 08:49:47 +01001785 return curproxy;
Willy Tarreau76838932021-02-12 08:49:47 +01001786}
1787
Willy Tarreauacde1522020-10-07 16:31:39 +02001788/* to be called under the proxy lock after stopping some listeners. This will
1789 * automatically update the p->disabled flag after stopping the last one, and
1790 * will emit a log indicating the proxy's condition. The function is idempotent
1791 * so that it will not emit multiple logs; a proxy will be disabled only once.
1792 */
1793void proxy_cond_disable(struct proxy *p)
1794{
1795 if (p->disabled)
1796 return;
1797
1798 if (p->li_ready + p->li_paused > 0)
1799 return;
1800
1801 p->disabled = 1;
1802
1803 if (!(proc_mask(p->bind_proc) & pid_bit))
1804 goto silent;
1805
1806 /* Note: syslog proxies use their own loggers so while it's somewhat OK
1807 * to report them being stopped as a warning, we must not spam their log
1808 * servers which are in fact production servers. For other types (CLI,
1809 * peers, etc) we must not report them at all as they're not really on
1810 * the data plane but on the control plane.
1811 */
1812 if (p->mode == PR_MODE_TCP || p->mode == PR_MODE_HTTP || p->mode == PR_MODE_SYSLOG)
1813 ha_warning("Proxy %s stopped (cumulated conns: FE: %lld, BE: %lld).\n",
1814 p->id, p->fe_counters.cum_conn, p->be_counters.cum_conn);
1815
1816 if (p->mode == PR_MODE_TCP || p->mode == PR_MODE_HTTP)
1817 send_log(p, LOG_WARNING, "Proxy %s stopped (cumulated conns: FE: %lld, BE: %lld).\n",
1818 p->id, p->fe_counters.cum_conn, p->be_counters.cum_conn);
1819
1820 silent:
1821 if (p->table && p->table->size && p->table->sync_task)
1822 task_wakeup(p->table->sync_task, TASK_WOKEN_MSG);
1823
1824 if (p->task)
1825 task_wakeup(p->task, TASK_WOKEN_MSG);
1826}
1827
Krzysztof Piotr Oledzkic8b16fc2008-02-18 01:26:35 +01001828/*
Willy Tarreau918ff602011-07-25 16:33:49 +02001829 * This is the proxy management task. It enables proxies when there are enough
Willy Tarreau87b09662015-04-03 00:22:06 +02001830 * free streams, or stops them when the table is full. It is designed to be
Willy Tarreau918ff602011-07-25 16:33:49 +02001831 * called as a task which is woken up upon stopping or when rate limiting must
1832 * be enforced.
Willy Tarreaubaaee002006-06-26 02:48:02 +02001833 */
Willy Tarreau144f84a2021-03-02 16:09:26 +01001834struct task *manage_proxy(struct task *t, void *context, unsigned int state)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001835{
Olivier Houchard9f6af332018-05-25 14:04:04 +02001836 struct proxy *p = context;
Willy Tarreau918ff602011-07-25 16:33:49 +02001837 int next = TICK_ETERNITY;
Willy Tarreau79584222009-03-06 09:18:27 +01001838 unsigned int wait;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001839
Willy Tarreau918ff602011-07-25 16:33:49 +02001840 /* We should periodically try to enable listeners waiting for a
1841 * global resource here.
1842 */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001843
Willy Tarreau918ff602011-07-25 16:33:49 +02001844 /* first, let's check if we need to stop the proxy */
Willy Tarreauc3914d42020-09-24 08:39:22 +02001845 if (unlikely(stopping && !p->disabled)) {
Willy Tarreau918ff602011-07-25 16:33:49 +02001846 int t;
1847 t = tick_remain(now_ms, p->stop_time);
1848 if (t == 0) {
Willy Tarreau918ff602011-07-25 16:33:49 +02001849 stop_proxy(p);
1850 /* try to free more memory */
Willy Tarreaubafbe012017-11-24 17:34:44 +01001851 pool_gc(NULL);
Willy Tarreau918ff602011-07-25 16:33:49 +02001852 }
1853 else {
1854 next = tick_first(next, p->stop_time);
1855 }
1856 }
Willy Tarreauf3f8c702011-07-25 07:37:28 +02001857
Willy Tarreau3a925c12013-09-04 17:54:01 +02001858 /* If the proxy holds a stick table, we need to purge all unused
1859 * entries. These are all the ones in the table with ref_cnt == 0
1860 * and all the ones in the pool used to allocate new entries. Any
Willy Tarreau87b09662015-04-03 00:22:06 +02001861 * entry attached to an existing stream waiting for a store will
Willy Tarreau3a925c12013-09-04 17:54:01 +02001862 * be in neither list. Any entry being dumped will have ref_cnt > 0.
1863 * However we protect tables that are being synced to peers.
1864 */
Willy Tarreauc3914d42020-09-24 08:39:22 +02001865 if (unlikely(stopping && p->disabled && p->table && p->table->current)) {
Emeric Brun2cc201f2021-04-23 12:21:26 +02001866
1867 if (!p->table->refcnt) {
1868 /* !table->refcnt means there
1869 * is no more pending full resync
1870 * to push to a new process and
1871 * we are free to flush the table.
1872 */
Frédéric Lécaille1b8e68e2019-03-14 07:07:41 +01001873 stktable_trash_oldest(p->table, p->table->current);
Willy Tarreaubafbe012017-11-24 17:34:44 +01001874 pool_gc(NULL);
Willy Tarreau3a925c12013-09-04 17:54:01 +02001875 }
Frédéric Lécaille1b8e68e2019-03-14 07:07:41 +01001876 if (p->table->current) {
Willy Tarreau3a925c12013-09-04 17:54:01 +02001877 /* some entries still remain, let's recheck in one second */
1878 next = tick_first(next, tick_add(now_ms, 1000));
1879 }
1880 }
1881
Willy Tarreau918ff602011-07-25 16:33:49 +02001882 /* the rest below is just for frontends */
1883 if (!(p->cap & PR_CAP_FE))
1884 goto out;
Willy Tarreauf3f8c702011-07-25 07:37:28 +02001885
Willy Tarreau918ff602011-07-25 16:33:49 +02001886 /* check the various reasons we may find to block the frontend */
Willy Tarreau6b3bf732020-09-24 07:35:46 +02001887 if (unlikely(p->feconn >= p->maxconn))
Willy Tarreau918ff602011-07-25 16:33:49 +02001888 goto out;
Willy Tarreau3a7d2072009-03-05 23:48:25 +01001889
Willy Tarreau918ff602011-07-25 16:33:49 +02001890 if (p->fe_sps_lim &&
1891 (wait = next_event_delay(&p->fe_sess_per_sec, p->fe_sps_lim, 0))) {
1892 /* we're blocking because a limit was reached on the number of
1893 * requests/s on the frontend. We want to re-check ASAP, which
1894 * means in 1 ms before estimated expiration date, because the
1895 * timer will have settled down.
1896 */
1897 next = tick_first(next, tick_add(now_ms, wait));
1898 goto out;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001899 }
Willy Tarreau918ff602011-07-25 16:33:49 +02001900
1901 /* The proxy is not limited so we can re-enable any waiting listener */
Willy Tarreau241797a2019-12-10 14:10:52 +01001902 dequeue_proxy_listeners(p);
Willy Tarreau918ff602011-07-25 16:33:49 +02001903 out:
1904 t->expire = next;
1905 task_queue(t);
1906 return t;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001907}
1908
1909
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001910static int proxy_parse_hard_stop_after(char **args, int section_type, struct proxy *curpx,
Willy Tarreau01825162021-03-09 09:53:46 +01001911 const struct proxy *defpx, const char *file, int line,
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001912 char **err)
1913{
1914 const char *res;
1915
1916 if (!*args[1]) {
1917 memprintf(err, "'%s' expects <time> as argument.\n", args[0]);
1918 return -1;
1919 }
1920 res = parse_time_err(args[1], &global.hard_stop_after, TIME_UNIT_MS);
Willy Tarreau9faebe32019-06-07 19:00:37 +02001921 if (res == PARSE_TIME_OVER) {
1922 memprintf(err, "timer overflow in argument '%s' to '%s' (maximum value is 2147483647 ms or ~24.8 days)",
1923 args[1], args[0]);
1924 return -1;
1925 }
1926 else if (res == PARSE_TIME_UNDER) {
1927 memprintf(err, "timer underflow in argument '%s' to '%s' (minimum non-null value is 1 ms)",
1928 args[1], args[0]);
1929 return -1;
1930 }
1931 else if (res) {
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001932 memprintf(err, "unexpected character '%c' in argument to <%s>.\n", *res, args[0]);
1933 return -1;
1934 }
1935 return 0;
1936}
1937
Willy Tarreau144f84a2021-03-02 16:09:26 +01001938struct task *hard_stop(struct task *t, void *context, unsigned int state)
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001939{
1940 struct proxy *p;
1941 struct stream *s;
Willy Tarreau0d038252021-02-24 11:13:59 +01001942 int thr;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001943
1944 if (killed) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001945 ha_warning("Some tasks resisted to hard-stop, exiting now.\n");
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001946 send_log(NULL, LOG_WARNING, "Some tasks resisted to hard-stop, exiting now.\n");
Willy Tarreau7067b3a2019-06-02 11:11:29 +02001947 killed = 2;
Willy Tarreau0d038252021-02-24 11:13:59 +01001948 for (thr = 0; thr < global.nbthread; thr++)
1949 if (((all_threads_mask & ~tid_bit) >> thr) & 1)
1950 wake_thread(thr);
Willy Tarreau7067b3a2019-06-02 11:11:29 +02001951 t->expire = TICK_ETERNITY;
1952 return t;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001953 }
1954
Christopher Faulet767a84b2017-11-24 16:50:31 +01001955 ha_warning("soft-stop running for too long, performing a hard-stop.\n");
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001956 send_log(NULL, LOG_WARNING, "soft-stop running for too long, performing a hard-stop.\n");
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001957 p = proxies_list;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001958 while (p) {
1959 if ((p->cap & PR_CAP_FE) && (p->feconn > 0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001960 ha_warning("Proxy %s hard-stopped (%d remaining conns will be closed).\n",
1961 p->id, p->feconn);
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001962 send_log(p, LOG_WARNING, "Proxy %s hard-stopped (%d remaining conns will be closed).\n",
1963 p->id, p->feconn);
1964 }
1965 p = p->next;
1966 }
Willy Tarreau92b887e2021-02-24 11:08:56 +01001967
1968 thread_isolate();
Willy Tarreaua698eb62021-02-24 10:37:01 +01001969
1970 for (thr = 0; thr < global.nbthread; thr++) {
1971 list_for_each_entry(s, &ha_thread_info[thr].streams, list) {
1972 stream_shutdown(s, SF_ERR_KILLED);
1973 }
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001974 }
Willy Tarreaua698eb62021-02-24 10:37:01 +01001975
Willy Tarreau92b887e2021-02-24 11:08:56 +01001976 thread_release();
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001977
1978 killed = 1;
1979 t->expire = tick_add(now_ms, MS_TO_TICKS(1000));
1980 return t;
1981}
1982
Willy Tarreaubaaee002006-06-26 02:48:02 +02001983/*
1984 * this function disables health-check servers so that the process will quickly be ignored
1985 * by load balancers. Note that if a proxy was already in the PAUSED state, then its grace
1986 * time will not be used since it would already not listen anymore to the socket.
1987 */
1988void soft_stop(void)
1989{
1990 struct proxy *p;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001991 struct task *task;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001992
1993 stopping = 1;
William Dauchy3894d972019-12-28 15:36:02 +01001994 /* disable busy polling to avoid cpu eating for the new process */
1995 global.tune.options &= ~GTUNE_BUSY_POLLING;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001996 if (tick_isset(global.hard_stop_after)) {
Emeric Brunc60def82017-09-27 14:59:38 +02001997 task = task_new(MAX_THREADS_MASK);
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001998 if (task) {
1999 task->process = hard_stop;
2000 task_schedule(task, tick_add(now_ms, global.hard_stop_after));
2001 }
2002 else {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002003 ha_alert("out of memory trying to allocate the hard-stop task.\n");
Cyril Bonté203ec5a2017-03-23 22:44:13 +01002004 }
2005 }
Willy Tarreau626f3a72020-10-07 16:52:43 +02002006
2007 /* stop all stoppable listeners, resulting in disabling all proxies
2008 * that don't use a grace period.
2009 */
2010 protocol_stop_now();
2011
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002012 p = proxies_list;
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02002013 tv_update_date(0,1); /* else, the old time before select will be used */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002014 while (p) {
Willy Tarreauc3914d42020-09-24 08:39:22 +02002015 if (!p->disabled) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002016 ha_warning("Stopping %s %s in %d ms.\n", proxy_cap_str(p->cap), p->id, p->grace);
Willy Tarreauf8fbcef2008-10-10 17:51:34 +02002017 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 +02002018 p->stop_time = tick_add(now_ms, p->grace);
Emeric Brun5a8c0a92010-09-23 18:44:36 +02002019
Willy Tarreau20b7afb2015-09-28 16:35:04 +02002020 /* Note: do not wake up stopped proxies' task nor their tables'
2021 * tasks as these ones might point to already released entries.
2022 */
Frédéric Lécaille1b8e68e2019-03-14 07:07:41 +01002023 if (p->table && p->table->size && p->table->sync_task)
2024 task_wakeup(p->table->sync_task, TASK_WOKEN_MSG);
Willy Tarreau20b7afb2015-09-28 16:35:04 +02002025
2026 if (p->task)
2027 task_wakeup(p->task, TASK_WOKEN_MSG);
2028 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002029 p = p->next;
2030 }
Willy Tarreaubbe11b12011-07-25 11:16:24 +02002031
Willy Tarreaud0807c32010-08-27 18:26:11 +02002032 /* signal zero is used to broadcast the "stopping" event */
2033 signal_handler(0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002034}
2035
2036
Willy Tarreaube58c382011-07-24 18:28:10 +02002037/* Temporarily disables listening on all of the proxy's listeners. Upon
Willy Tarreaua17c91b2020-09-24 07:44:34 +02002038 * success, the proxy enters the PR_PAUSED state. The function returns 0
Willy Tarreauce8fe252011-09-07 19:14:57 +02002039 * if it fails, or non-zero on success.
Willy Tarreaubaaee002006-06-26 02:48:02 +02002040 */
Willy Tarreauce8fe252011-09-07 19:14:57 +02002041int pause_proxy(struct proxy *p)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002042{
2043 struct listener *l;
Willy Tarreauce8fe252011-09-07 19:14:57 +02002044
Willy Tarreauc3914d42020-09-24 08:39:22 +02002045 if (!(p->cap & PR_CAP_FE) || p->disabled || !p->li_ready)
Willy Tarreauce8fe252011-09-07 19:14:57 +02002046 return 1;
2047
Willy Tarreaua17c91b2020-09-24 07:44:34 +02002048 list_for_each_entry(l, &p->conf.listeners, by_fe)
2049 pause_listener(l);
Willy Tarreauce8fe252011-09-07 19:14:57 +02002050
Willy Tarreaua17c91b2020-09-24 07:44:34 +02002051 if (p->li_ready) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002052 ha_warning("%s %s failed to enter pause mode.\n", proxy_cap_str(p->cap), p->id);
Willy Tarreauce8fe252011-09-07 19:14:57 +02002053 send_log(p, LOG_WARNING, "%s %s failed to enter pause mode.\n", proxy_cap_str(p->cap), p->id);
2054 return 0;
2055 }
Willy Tarreauce8fe252011-09-07 19:14:57 +02002056 return 1;
Willy Tarreauda250db2008-10-12 12:07:48 +02002057}
2058
Willy Tarreauda250db2008-10-12 12:07:48 +02002059/*
2060 * This function completely stops a proxy and releases its listeners. It has
2061 * to be called when going down in order to release the ports so that another
2062 * process may bind to them. It must also be called on disabled proxies at the
William Lallemandc59f9882018-11-16 16:57:21 +01002063 * end of start-up. If all listeners are closed, the proxy is set to the
Willy Tarreau3de3cd42019-07-24 17:42:44 +02002064 * PR_STSTOPPED state. The function takes the proxy's lock so it's safe to
2065 * call from multiple places.
Willy Tarreauda250db2008-10-12 12:07:48 +02002066 */
2067void stop_proxy(struct proxy *p)
2068{
2069 struct listener *l;
2070
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002071 HA_RWLOCK_WRLOCK(PROXY_LOCK, &p->lock);
Willy Tarreau3de3cd42019-07-24 17:42:44 +02002072
Willy Tarreau322b9b92020-10-07 16:20:34 +02002073 list_for_each_entry(l, &p->conf.listeners, by_fe)
2074 stop_listener(l, 1, 0, 0);
Willy Tarreau3de3cd42019-07-24 17:42:44 +02002075
Willy Tarreauba296872020-10-16 15:10:11 +02002076 if (!p->disabled && !p->li_ready) {
2077 /* might be just a backend */
2078 p->disabled = 1;
2079 }
2080
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002081 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &p->lock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002082}
2083
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02002084/* This function resumes listening on the specified proxy. It scans all of its
2085 * listeners and tries to enable them all. If any of them fails, the proxy is
2086 * put back to the paused state. It returns 1 upon success, or zero if an error
2087 * is encountered.
2088 */
2089int resume_proxy(struct proxy *p)
2090{
2091 struct listener *l;
2092 int fail;
2093
Willy Tarreauc3914d42020-09-24 08:39:22 +02002094 if (p->disabled || !p->li_paused)
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02002095 return 1;
2096
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02002097 fail = 0;
Willy Tarreau4348fad2012-09-20 16:48:07 +02002098 list_for_each_entry(l, &p->conf.listeners, by_fe) {
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02002099 if (!resume_listener(l)) {
2100 int port;
2101
Willy Tarreau37159062020-08-27 07:48:42 +02002102 port = get_host_port(&l->rx.addr);
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02002103 if (port) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002104 ha_warning("Port %d busy while trying to enable %s %s.\n",
2105 port, proxy_cap_str(p->cap), p->id);
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02002106 send_log(p, LOG_WARNING, "Port %d busy while trying to enable %s %s.\n",
2107 port, proxy_cap_str(p->cap), p->id);
2108 }
2109 else {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002110 ha_warning("Bind on socket %d busy while trying to enable %s %s.\n",
2111 l->luid, proxy_cap_str(p->cap), p->id);
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02002112 send_log(p, LOG_WARNING, "Bind on socket %d busy while trying to enable %s %s.\n",
2113 l->luid, proxy_cap_str(p->cap), p->id);
2114 }
2115
2116 /* Another port might have been enabled. Let's stop everything. */
2117 fail = 1;
2118 break;
2119 }
2120 }
2121
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02002122 if (fail) {
2123 pause_proxy(p);
2124 return 0;
2125 }
2126 return 1;
2127}
2128
Willy Tarreau87b09662015-04-03 00:22:06 +02002129/* Set current stream's backend to <be>. Nothing is done if the
2130 * stream already had a backend assigned, which is indicated by
Willy Tarreaue7dff022015-04-03 01:14:29 +02002131 * s->flags & SF_BE_ASSIGNED.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02002132 * All flags, stats and counters which need be updated are updated.
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02002133 * Returns 1 if done, 0 in case of internal error, eg: lack of resource.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02002134 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002135int stream_set_backend(struct stream *s, struct proxy *be)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02002136{
Christopher Faulet6c1fd982021-03-15 10:42:02 +01002137 unsigned int req_ana;
2138
Willy Tarreaue7dff022015-04-03 01:14:29 +02002139 if (s->flags & SF_BE_ASSIGNED)
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02002140 return 1;
Christopher Faulet41179042016-06-21 11:54:52 +02002141
2142 if (flt_set_stream_backend(s, be) < 0)
2143 return 0;
2144
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02002145 s->be = be;
Christopher Fauletff8abcd2017-06-02 15:33:24 +02002146 HA_ATOMIC_UPDATE_MAX(&be->be_counters.conn_max,
Willy Tarreau1db42732021-04-06 11:44:07 +02002147 HA_ATOMIC_ADD_FETCH(&be->beconn, 1));
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02002148 proxy_inc_be_ctr(be);
2149
Willy Tarreau87b09662015-04-03 00:22:06 +02002150 /* assign new parameters to the stream from the new backend */
Willy Tarreauf27b5ea2009-10-03 22:01:18 +02002151 s->si[1].flags &= ~SI_FL_INDEP_STR;
2152 if (be->options2 & PR_O2_INDEPSTR)
2153 s->si[1].flags |= SI_FL_INDEP_STR;
2154
Hongbo Longe39683c2017-03-10 18:41:51 +01002155 if (tick_isset(be->timeout.serverfin))
2156 s->si[1].hcto = be->timeout.serverfin;
2157
Willy Tarreau9fbe18e2015-05-01 22:42:08 +02002158 /* We want to enable the backend-specific analysers except those which
2159 * were already run as part of the frontend/listener. Note that it would
2160 * be more reliable to store the list of analysers that have been run,
2161 * but what we do here is OK for now.
2162 */
Christopher Faulet6c1fd982021-03-15 10:42:02 +01002163 req_ana = be->be_req_ana;
2164 if (!(strm_fe(s)->options & PR_O_WREQ_BODY) && be->options & PR_O_WREQ_BODY) {
2165 /* The backend request to parse a request body while it was not
2166 * performed on the frontend, so add the corresponding analyser
2167 */
2168 req_ana |= AN_REQ_HTTP_BODY;
2169 }
2170 if (IS_HTX_STRM(s) && strm_fe(s)->mode != PR_MODE_HTTP) {
2171 /* The stream was already upgraded to HTTP, so remove analysers
2172 * set during the upgrade
2173 */
2174 req_ana &= ~(AN_REQ_WAIT_HTTP|AN_REQ_HTTP_PROCESS_FE);
2175 }
2176 s->req.analysers |= req_ana & ~(strm_li(s) ? strm_li(s)->analysers : 0);
Willy Tarreau9fbe18e2015-05-01 22:42:08 +02002177
Christopher Faulet6c1fd982021-03-15 10:42:02 +01002178 if (!IS_HTX_STRM(s) && be->mode == PR_MODE_HTTP) {
Christopher Fauletbbe68542019-04-08 10:53:51 +02002179 /* If we chain a TCP frontend to an HTX backend, we must upgrade
2180 * the client mux */
Christopher Fauletae863c62021-03-15 12:03:44 +01002181 if (!stream_set_http_mode(s, NULL))
Christopher Fauleteec7f8a2019-12-20 15:59:20 +01002182 return 0;
Christopher Faulet6c1fd982021-03-15 10:42:02 +01002183 }
2184 else if (IS_HTX_STRM(s) && be->mode != PR_MODE_HTTP) {
2185 /* If a TCP backend is assgiend to an HTX stream, return an
2186 * error. It may happens for a new stream on a previously
2187 * upgraded connections. */
2188 if (!(s->flags & SF_ERR_MASK))
2189 s->flags |= SF_ERR_INTERNAL;
2190 return 0;
2191 }
2192 else {
2193 /* If the target backend requires HTTP processing, we have to allocate
2194 * the HTTP transaction if we did not have one.
2195 */
2196 if (unlikely(!s->txn && be->http_needed && !http_create_txn(s)))
2197 return 0;
Willy Tarreaueee5b512015-04-03 23:46:31 +02002198 }
2199
2200 s->flags |= SF_BE_ASSIGNED;
Willy Tarreau96e31212011-05-30 18:10:30 +02002201 if (be->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01002202 s->req.flags |= CF_NEVER_WAIT;
2203 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +02002204 }
2205
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02002206 return 1;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02002207}
2208
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002209/* Capture a bad request or response and archive it in the proxy's structure.
2210 * It is relatively protocol-agnostic so it requires that a number of elements
2211 * are passed :
2212 * - <proxy> is the proxy where the error was detected and where the snapshot
2213 * needs to be stored
Joseph Herlant59dd2952018-11-15 11:46:55 -08002214 * - <is_back> indicates that the error happened when receiving the response
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002215 * - <other_end> is a pointer to the proxy on the other side when known
2216 * - <target> is the target of the connection, usually a server or a proxy
2217 * - <sess> is the session which experienced the error
2218 * - <ctx> may be NULL or should contain any info relevant to the protocol
2219 * - <buf> is the buffer containing the offending data
2220 * - <buf_ofs> is the position of this buffer's input data in the input
2221 * stream, starting at zero. It may be passed as zero if unknown.
2222 * - <buf_out> is the portion of <buf->data> which was already forwarded and
2223 * which precedes the buffer's input. The buffer's input starts at
2224 * buf->head + buf_out.
2225 * - <err_pos> is the pointer to the faulty byte in the buffer's input.
2226 * - <show> is the callback to use to display <ctx>. It may be NULL.
2227 */
2228void proxy_capture_error(struct proxy *proxy, int is_back,
2229 struct proxy *other_end, enum obj_type *target,
2230 const struct session *sess,
2231 const struct buffer *buf, long buf_ofs,
2232 unsigned int buf_out, unsigned int err_pos,
2233 const union error_snapshot_ctx *ctx,
2234 void (*show)(struct buffer *, const struct error_snapshot *))
2235{
2236 struct error_snapshot *es;
2237 unsigned int buf_len;
2238 int len1, len2;
Willy Tarreauc55015e2018-09-07 19:02:32 +02002239 unsigned int ev_id;
2240
Willy Tarreau18515722021-04-06 11:57:41 +02002241 ev_id = HA_ATOMIC_FETCH_ADD(&error_snapshot_id, 1);
Willy Tarreauc55015e2018-09-07 19:02:32 +02002242
Willy Tarreau4bc7d902018-09-07 20:07:17 +02002243 buf_len = b_data(buf) - buf_out;
2244
2245 es = malloc(sizeof(*es) + buf_len);
Willy Tarreauc55015e2018-09-07 19:02:32 +02002246 if (!es)
2247 return;
2248
Willy Tarreau4bc7d902018-09-07 20:07:17 +02002249 es->buf_len = buf_len;
2250 es->ev_id = ev_id;
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002251
Christopher Faulet47a72102020-01-06 11:37:00 +01002252 len1 = b_size(buf) - b_peek_ofs(buf, buf_out);
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002253 if (len1 > buf_len)
2254 len1 = buf_len;
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002255
Willy Tarreau4bc7d902018-09-07 20:07:17 +02002256 if (len1) {
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002257 memcpy(es->buf, b_peek(buf, buf_out), len1);
Willy Tarreau4bc7d902018-09-07 20:07:17 +02002258 len2 = buf_len - len1;
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002259 if (len2)
2260 memcpy(es->buf + len1, b_orig(buf), len2);
2261 }
2262
2263 es->buf_err = err_pos;
2264 es->when = date; // user-visible date
2265 es->srv = objt_server(target);
2266 es->oe = other_end;
Olivier Houchardbdb00c52020-03-12 15:30:17 +01002267 if (sess && objt_conn(sess->origin) && conn_get_src(__objt_conn(sess->origin)))
Willy Tarreau026efc72019-07-17 15:20:02 +02002268 es->src = *__objt_conn(sess->origin)->src;
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002269 else
2270 memset(&es->src, 0, sizeof(es->src));
2271
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002272 es->buf_wrap = b_wrap(buf) - b_peek(buf, buf_out);
2273 es->buf_out = buf_out;
2274 es->buf_ofs = buf_ofs;
2275
2276 /* be sure to indicate the offset of the first IN byte */
2277 if (es->buf_ofs >= es->buf_len)
2278 es->buf_ofs -= es->buf_len;
2279 else
2280 es->buf_ofs = 0;
2281
2282 /* protocol-specific part now */
2283 if (ctx)
2284 es->ctx = *ctx;
2285 else
2286 memset(&es->ctx, 0, sizeof(es->ctx));
2287 es->show = show;
Willy Tarreauc55015e2018-09-07 19:02:32 +02002288
2289 /* note: we still lock since we have to be certain that nobody is
2290 * dumping the output while we free.
2291 */
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002292 HA_RWLOCK_WRLOCK(PROXY_LOCK, &proxy->lock);
Willy Tarreauc55015e2018-09-07 19:02:32 +02002293 if (is_back) {
2294 es = HA_ATOMIC_XCHG(&proxy->invalid_rep, es);
2295 } else {
2296 es = HA_ATOMIC_XCHG(&proxy->invalid_req, es);
2297 }
2298 free(es);
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002299 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &proxy->lock);
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002300}
2301
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002302/* Configure all proxies which lack a maxconn setting to use the global one by
2303 * default. This avoids the common mistake consisting in setting maxconn only
2304 * in the global section and discovering the hard way that it doesn't propagate
2305 * through the frontends. These values are also propagated through the various
Ilya Shipitsin47d17182020-06-21 21:42:57 +05002306 * targeted backends, whose fullconn is finally calculated if not yet set.
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002307 */
2308void proxy_adjust_all_maxconn()
2309{
2310 struct proxy *curproxy;
2311 struct switching_rule *swrule1, *swrule2;
2312
2313 for (curproxy = proxies_list; curproxy; curproxy = curproxy->next) {
Willy Tarreauc3914d42020-09-24 08:39:22 +02002314 if (curproxy->disabled)
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002315 continue;
2316
2317 if (!(curproxy->cap & PR_CAP_FE))
2318 continue;
2319
2320 if (!curproxy->maxconn)
2321 curproxy->maxconn = global.maxconn;
2322
2323 /* update the target backend's fullconn count : default_backend */
2324 if (curproxy->defbe.be)
2325 curproxy->defbe.be->tot_fe_maxconn += curproxy->maxconn;
2326 else if ((curproxy->cap & PR_CAP_LISTEN) == PR_CAP_LISTEN)
2327 curproxy->tot_fe_maxconn += curproxy->maxconn;
2328
2329 list_for_each_entry(swrule1, &curproxy->switching_rules, list) {
2330 /* For each target of switching rules, we update their
2331 * tot_fe_maxconn, except if a previous rule points to
2332 * the same backend or to the default backend.
2333 */
2334 if (swrule1->be.backend != curproxy->defbe.be) {
Frédéric Lécaille2365fb02019-03-07 15:02:52 +01002335 /* note: swrule1->be.backend isn't a backend if the rule
2336 * is dynamic, it's an expression instead, so it must not
2337 * be dereferenced as a backend before being certain it is.
2338 */
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002339 list_for_each_entry(swrule2, &curproxy->switching_rules, list) {
2340 if (swrule2 == swrule1) {
Frédéric Lécaille2365fb02019-03-07 15:02:52 +01002341 if (!swrule1->dynamic)
2342 swrule1->be.backend->tot_fe_maxconn += curproxy->maxconn;
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002343 break;
2344 }
2345 else if (!swrule2->dynamic && swrule2->be.backend == swrule1->be.backend) {
2346 /* there are multiple refs of this backend */
2347 break;
2348 }
2349 }
2350 }
2351 }
2352 }
2353
2354 /* automatically compute fullconn if not set. We must not do it in the
2355 * loop above because cross-references are not yet fully resolved.
2356 */
2357 for (curproxy = proxies_list; curproxy; curproxy = curproxy->next) {
Willy Tarreauc3914d42020-09-24 08:39:22 +02002358 if (curproxy->disabled)
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002359 continue;
2360
2361 /* If <fullconn> is not set, let's set it to 10% of the sum of
2362 * the possible incoming frontend's maxconns.
2363 */
2364 if (!curproxy->fullconn && (curproxy->cap & PR_CAP_BE)) {
2365 /* we have the sum of the maxconns in <total>. We only
2366 * keep 10% of that sum to set the default fullconn, with
2367 * a hard minimum of 1 (to avoid a divide by zero).
2368 */
2369 curproxy->fullconn = (curproxy->tot_fe_maxconn + 9) / 10;
2370 if (!curproxy->fullconn)
2371 curproxy->fullconn = 1;
2372 }
2373 }
2374}
2375
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002376/* Config keywords below */
2377
Willy Tarreaudc13c112013-06-21 23:16:39 +02002378static struct cfg_kw_list cfg_kws = {ILH, {
Cyril Bonté203ec5a2017-03-23 22:44:13 +01002379 { CFG_GLOBAL, "hard-stop-after", proxy_parse_hard_stop_after },
Willy Tarreau9de1bbd2008-07-09 20:34:27 +02002380 { CFG_LISTEN, "timeout", proxy_parse_timeout },
Tim Duesterhus86e6b6e2019-05-14 20:57:59 +02002381 { CFG_LISTEN, "clitimeout", proxy_parse_timeout }, /* This keyword actually fails to parse, this line remains for better error messages. */
2382 { CFG_LISTEN, "contimeout", proxy_parse_timeout }, /* This keyword actually fails to parse, this line remains for better error messages. */
2383 { CFG_LISTEN, "srvtimeout", proxy_parse_timeout }, /* This keyword actually fails to parse, this line remains for better error messages. */
Willy Tarreau3a7d2072009-03-05 23:48:25 +01002384 { CFG_LISTEN, "rate-limit", proxy_parse_rate_limit },
Willy Tarreauc35362a2014-04-25 13:58:37 +02002385 { CFG_LISTEN, "max-keep-alive-queue", proxy_parse_max_ka_queue },
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +02002386 { CFG_LISTEN, "declare", proxy_parse_declare },
Olivier Houcharda254a372019-04-05 15:30:12 +02002387 { CFG_LISTEN, "retry-on", proxy_parse_retry_on },
Willy Tarreau52543212020-07-09 05:58:51 +02002388#ifdef TCP_KEEPCNT
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +09002389 { CFG_LISTEN, "clitcpka-cnt", proxy_parse_tcpka_cnt },
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +09002390 { CFG_LISTEN, "srvtcpka-cnt", proxy_parse_tcpka_cnt },
Willy Tarreau52543212020-07-09 05:58:51 +02002391#endif
2392#ifdef TCP_KEEPIDLE
2393 { CFG_LISTEN, "clitcpka-idle", proxy_parse_tcpka_idle },
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +09002394 { CFG_LISTEN, "srvtcpka-idle", proxy_parse_tcpka_idle },
Willy Tarreau52543212020-07-09 05:58:51 +02002395#endif
2396#ifdef TCP_KEEPINTVL
2397 { CFG_LISTEN, "clitcpka-intvl", proxy_parse_tcpka_intvl },
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +09002398 { CFG_LISTEN, "srvtcpka-intvl", proxy_parse_tcpka_intvl },
Willy Tarreau52543212020-07-09 05:58:51 +02002399#endif
Willy Tarreau9de1bbd2008-07-09 20:34:27 +02002400 { 0, NULL, NULL },
2401}};
2402
Willy Tarreau0108d902018-11-25 19:14:37 +01002403INITCALL1(STG_REGISTER, cfg_register_keywords, &cfg_kws);
2404
Willy Tarreau960f2cb2016-11-24 12:02:29 +01002405/* Expects to find a frontend named <arg> and returns it, otherwise displays various
2406 * adequate error messages and returns NULL. This function is designed to be used by
2407 * functions requiring a frontend on the CLI.
2408 */
2409struct proxy *cli_find_frontend(struct appctx *appctx, const char *arg)
2410{
2411 struct proxy *px;
2412
2413 if (!*arg) {
Willy Tarreau9d008692019-08-09 11:21:01 +02002414 cli_err(appctx, "A frontend name is expected.\n");
Willy Tarreau960f2cb2016-11-24 12:02:29 +01002415 return NULL;
2416 }
2417
2418 px = proxy_fe_by_name(arg);
2419 if (!px) {
Willy Tarreau9d008692019-08-09 11:21:01 +02002420 cli_err(appctx, "No such frontend.\n");
Willy Tarreau960f2cb2016-11-24 12:02:29 +01002421 return NULL;
2422 }
2423 return px;
2424}
2425
Olivier Houchard614f8d72017-03-14 20:08:46 +01002426/* Expects to find a backend named <arg> and returns it, otherwise displays various
2427 * adequate error messages and returns NULL. This function is designed to be used by
2428 * functions requiring a frontend on the CLI.
2429 */
2430struct proxy *cli_find_backend(struct appctx *appctx, const char *arg)
2431{
2432 struct proxy *px;
2433
2434 if (!*arg) {
Willy Tarreau9d008692019-08-09 11:21:01 +02002435 cli_err(appctx, "A backend name is expected.\n");
Olivier Houchard614f8d72017-03-14 20:08:46 +01002436 return NULL;
2437 }
2438
2439 px = proxy_be_by_name(arg);
2440 if (!px) {
Willy Tarreau9d008692019-08-09 11:21:01 +02002441 cli_err(appctx, "No such backend.\n");
Olivier Houchard614f8d72017-03-14 20:08:46 +01002442 return NULL;
2443 }
2444 return px;
2445}
2446
2447
Willy Tarreau69f591e2020-07-01 07:00:59 +02002448/* parse a "show servers [state|conn]" CLI line, returns 0 if it wants to start
2449 * the dump or 1 if it stops immediately. If an argument is specified, it will
2450 * set the proxy pointer into cli.p0 and its ID into cli.i0. It sets cli.o0 to
2451 * 0 for "state", or 1 for "conn".
William Lallemanda6c5f332016-11-19 02:25:36 +01002452 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002453static int cli_parse_show_servers(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemanda6c5f332016-11-19 02:25:36 +01002454{
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002455 struct proxy *px;
William Lallemanda6c5f332016-11-19 02:25:36 +01002456
Willy Tarreau69f591e2020-07-01 07:00:59 +02002457 appctx->ctx.cli.o0 = *args[2] == 'c'; // "conn" vs "state"
2458
William Lallemanda6c5f332016-11-19 02:25:36 +01002459 /* check if a backend name has been provided */
2460 if (*args[3]) {
2461 /* read server state from local file */
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002462 px = proxy_be_by_name(args[3]);
William Lallemanda6c5f332016-11-19 02:25:36 +01002463
Willy Tarreau9d008692019-08-09 11:21:01 +02002464 if (!px)
2465 return cli_err(appctx, "Can't find backend.\n");
2466
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002467 appctx->ctx.cli.p0 = px;
2468 appctx->ctx.cli.i0 = px->uuid;
William Lallemanda6c5f332016-11-19 02:25:36 +01002469 }
2470 return 0;
2471}
2472
William Dauchyd1a7b852021-02-11 22:51:26 +01002473/* helper to dump server addr */
2474static void dump_server_addr(const struct sockaddr_storage *addr, char *addr_str)
2475{
2476 addr_str[0] = '\0';
2477 switch (addr->ss_family) {
2478 case AF_INET:
2479 case AF_INET6:
2480 addr_to_str(addr, addr_str, INET6_ADDRSTRLEN + 1);
2481 break;
2482 default:
2483 memcpy(addr_str, "-\0", 2);
2484 break;
2485 }
2486}
2487
Willy Tarreau6ff81432020-07-01 07:02:42 +02002488/* dumps server state information for all the servers found in backend cli.p0.
William Lallemanda6c5f332016-11-19 02:25:36 +01002489 * These information are all the parameters which may change during HAProxy runtime.
2490 * By default, we only export to the last known server state file format.
2491 * These information can be used at next startup to recover same level of server state.
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002492 * It uses the proxy pointer from cli.p0, the proxy's id from cli.i0 and the server's
2493 * pointer from cli.p1.
William Lallemanda6c5f332016-11-19 02:25:36 +01002494 */
Willy Tarreau6ff81432020-07-01 07:02:42 +02002495static int dump_servers_state(struct stream_interface *si)
William Lallemanda6c5f332016-11-19 02:25:36 +01002496{
2497 struct appctx *appctx = __objt_appctx(si->end);
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002498 struct proxy *px = appctx->ctx.cli.p0;
William Lallemanda6c5f332016-11-19 02:25:36 +01002499 struct server *srv;
2500 char srv_addr[INET6_ADDRSTRLEN + 1];
William Dauchyd1a7b852021-02-11 22:51:26 +01002501 char srv_agent_addr[INET6_ADDRSTRLEN + 1];
2502 char srv_check_addr[INET6_ADDRSTRLEN + 1];
William Lallemanda6c5f332016-11-19 02:25:36 +01002503 time_t srv_time_since_last_change;
2504 int bk_f_forced_id, srv_f_forced_id;
Baptiste Assmann6d0f38f2018-07-02 17:00:54 +02002505 char *srvrecord;
William Lallemanda6c5f332016-11-19 02:25:36 +01002506
William Lallemanda6c5f332016-11-19 02:25:36 +01002507 /* we don't want to report any state if the backend is not enabled on this process */
Willy Tarreau6daac192019-02-02 17:39:53 +01002508 if (!(proc_mask(px->bind_proc) & pid_bit))
William Lallemanda6c5f332016-11-19 02:25:36 +01002509 return 1;
2510
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002511 if (!appctx->ctx.cli.p1)
2512 appctx->ctx.cli.p1 = px->srv;
William Lallemanda6c5f332016-11-19 02:25:36 +01002513
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002514 for (; appctx->ctx.cli.p1 != NULL; appctx->ctx.cli.p1 = srv->next) {
2515 srv = appctx->ctx.cli.p1;
William Lallemanda6c5f332016-11-19 02:25:36 +01002516
William Dauchyd1a7b852021-02-11 22:51:26 +01002517 dump_server_addr(&srv->addr, srv_addr);
2518 dump_server_addr(&srv->check.addr, srv_check_addr);
2519 dump_server_addr(&srv->agent.addr, srv_agent_addr);
2520
William Lallemanda6c5f332016-11-19 02:25:36 +01002521 srv_time_since_last_change = now.tv_sec - srv->last_change;
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002522 bk_f_forced_id = px->options & PR_O_FORCED_ID ? 1 : 0;
William Lallemanda6c5f332016-11-19 02:25:36 +01002523 srv_f_forced_id = srv->flags & SRV_F_FORCED_ID ? 1 : 0;
2524
Baptiste Assmann6d0f38f2018-07-02 17:00:54 +02002525 srvrecord = NULL;
2526 if (srv->srvrq && srv->srvrq->name)
2527 srvrecord = srv->srvrq->name;
2528
Willy Tarreau69f591e2020-07-01 07:00:59 +02002529 if (appctx->ctx.cli.o0 == 0) {
2530 /* show servers state */
2531 chunk_printf(&trash,
2532 "%d %s "
2533 "%d %s %s "
2534 "%d %d %d %d %ld "
2535 "%d %d %d %d %d "
William Dauchyf6370442020-11-14 19:25:33 +01002536 "%d %d %s %u "
William Dauchyd1a7b852021-02-11 22:51:26 +01002537 "%s %d %d "
2538 "%s %s %d"
Willy Tarreau69f591e2020-07-01 07:00:59 +02002539 "\n",
2540 px->uuid, px->id,
2541 srv->puid, srv->id, srv_addr,
2542 srv->cur_state, srv->cur_admin, srv->uweight, srv->iweight, (long int)srv_time_since_last_change,
2543 srv->check.status, srv->check.result, srv->check.health, srv->check.state, srv->agent.state,
2544 bk_f_forced_id, srv_f_forced_id, srv->hostname ? srv->hostname : "-", srv->svc_port,
William Dauchyd1a7b852021-02-11 22:51:26 +01002545 srvrecord ? srvrecord : "-", srv->use_ssl, srv->check.port,
2546 srv_check_addr, srv_agent_addr, srv->agent.port);
Willy Tarreau69f591e2020-07-01 07:00:59 +02002547 } else {
2548 /* show servers conn */
2549 int thr;
2550
2551 chunk_printf(&trash,
2552 "%s/%s %d/%d %s %u - %u %u %u %u %u %u %d %u",
2553 px->id, srv->id, px->uuid, srv->puid, srv_addr,srv->svc_port,
2554 srv->pool_purge_delay,
2555 srv->curr_used_conns, srv->max_used_conns, srv->est_need_conns,
2556 srv->curr_idle_nb, srv->curr_safe_nb, (int)srv->max_idle_conns, srv->curr_idle_conns);
2557
Willy Tarreau42abe682020-07-02 15:19:57 +02002558 for (thr = 0; thr < global.nbthread && srv->curr_idle_thr; thr++)
Willy Tarreau69f591e2020-07-01 07:00:59 +02002559 chunk_appendf(&trash, " %u", srv->curr_idle_thr[thr]);
2560
2561 chunk_appendf(&trash, "\n");
2562 }
2563
Willy Tarreau06d80a92017-10-19 14:32:15 +02002564 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreaudb398432018-11-15 11:08:52 +01002565 si_rx_room_blk(si);
William Lallemanda6c5f332016-11-19 02:25:36 +01002566 return 0;
2567 }
2568 }
2569 return 1;
2570}
2571
2572/* Parses backend list or simply use backend name provided by the user to return
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002573 * states of servers to stdout. It dumps proxy <cli.p0> and stops if <cli.i0> is
2574 * non-null.
William Lallemanda6c5f332016-11-19 02:25:36 +01002575 */
2576static int cli_io_handler_servers_state(struct appctx *appctx)
2577{
2578 struct stream_interface *si = appctx->owner;
William Lallemanda6c5f332016-11-19 02:25:36 +01002579 struct proxy *curproxy;
2580
2581 chunk_reset(&trash);
2582
2583 if (appctx->st2 == STAT_ST_INIT) {
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002584 if (!appctx->ctx.cli.p0)
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002585 appctx->ctx.cli.p0 = proxies_list;
William Lallemanda6c5f332016-11-19 02:25:36 +01002586 appctx->st2 = STAT_ST_HEAD;
2587 }
2588
2589 if (appctx->st2 == STAT_ST_HEAD) {
Willy Tarreau69f591e2020-07-01 07:00:59 +02002590 if (appctx->ctx.cli.o0 == 0)
2591 chunk_printf(&trash, "%d\n# %s\n", SRV_STATE_FILE_VERSION, SRV_STATE_FILE_FIELD_NAMES);
2592 else
2593 chunk_printf(&trash,
2594 "# bkname/svname bkid/svid addr port - purge_delay used_cur used_max need_est unsafe_nb safe_nb idle_lim idle_cur idle_per_thr[%d]\n",
2595 global.nbthread);
2596
Willy Tarreau06d80a92017-10-19 14:32:15 +02002597 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreaudb398432018-11-15 11:08:52 +01002598 si_rx_room_blk(si);
William Lallemanda6c5f332016-11-19 02:25:36 +01002599 return 0;
2600 }
2601 appctx->st2 = STAT_ST_INFO;
2602 }
2603
2604 /* STAT_ST_INFO */
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002605 for (; appctx->ctx.cli.p0 != NULL; appctx->ctx.cli.p0 = curproxy->next) {
2606 curproxy = appctx->ctx.cli.p0;
William Lallemanda6c5f332016-11-19 02:25:36 +01002607 /* servers are only in backends */
2608 if (curproxy->cap & PR_CAP_BE) {
Willy Tarreau6ff81432020-07-01 07:02:42 +02002609 if (!dump_servers_state(si))
William Lallemanda6c5f332016-11-19 02:25:36 +01002610 return 0;
William Lallemanda6c5f332016-11-19 02:25:36 +01002611 }
2612 /* only the selected proxy is dumped */
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002613 if (appctx->ctx.cli.i0)
William Lallemanda6c5f332016-11-19 02:25:36 +01002614 break;
2615 }
2616
2617 return 1;
2618}
2619
Willy Tarreau608ea592016-12-16 18:01:15 +01002620/* Parses backend list and simply report backend names. It keeps the proxy
2621 * pointer in cli.p0.
2622 */
William Lallemand933efcd2016-11-22 12:34:16 +01002623static int cli_io_handler_show_backend(struct appctx *appctx)
2624{
William Lallemand933efcd2016-11-22 12:34:16 +01002625 struct stream_interface *si = appctx->owner;
2626 struct proxy *curproxy;
2627
2628 chunk_reset(&trash);
2629
Willy Tarreau608ea592016-12-16 18:01:15 +01002630 if (!appctx->ctx.cli.p0) {
William Lallemand933efcd2016-11-22 12:34:16 +01002631 chunk_printf(&trash, "# name\n");
Willy Tarreau06d80a92017-10-19 14:32:15 +02002632 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreaudb398432018-11-15 11:08:52 +01002633 si_rx_room_blk(si);
William Lallemand933efcd2016-11-22 12:34:16 +01002634 return 0;
2635 }
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002636 appctx->ctx.cli.p0 = proxies_list;
William Lallemand933efcd2016-11-22 12:34:16 +01002637 }
2638
Willy Tarreau608ea592016-12-16 18:01:15 +01002639 for (; appctx->ctx.cli.p0 != NULL; appctx->ctx.cli.p0 = curproxy->next) {
2640 curproxy = appctx->ctx.cli.p0;
William Lallemand933efcd2016-11-22 12:34:16 +01002641
2642 /* looking for backends only */
2643 if (!(curproxy->cap & PR_CAP_BE))
2644 continue;
2645
2646 /* we don't want to list a backend which is bound to this process */
Willy Tarreau6daac192019-02-02 17:39:53 +01002647 if (!(proc_mask(curproxy->bind_proc) & pid_bit))
William Lallemand933efcd2016-11-22 12:34:16 +01002648 continue;
2649
2650 chunk_appendf(&trash, "%s\n", curproxy->id);
Willy Tarreau06d80a92017-10-19 14:32:15 +02002651 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreaudb398432018-11-15 11:08:52 +01002652 si_rx_room_blk(si);
William Lallemand933efcd2016-11-22 12:34:16 +01002653 return 0;
2654 }
2655 }
2656
2657 return 1;
2658}
William Lallemanda6c5f332016-11-19 02:25:36 +01002659
Willy Tarreaua275a372018-08-21 14:50:44 +02002660/* Parses the "enable dynamic-cookies backend" directive, it always returns 1.
2661 *
2662 * Grabs the proxy lock and each server's lock.
2663 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002664static int cli_parse_enable_dyncookie_backend(char **args, char *payload, struct appctx *appctx, void *private)
Olivier Houchard614f8d72017-03-14 20:08:46 +01002665{
2666 struct proxy *px;
2667 struct server *s;
2668
2669 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2670 return 1;
2671
2672 px = cli_find_backend(appctx, args[3]);
2673 if (!px)
2674 return 1;
2675
Willy Tarreau5e83d992019-07-30 11:59:34 +02002676 /* Note: this lock is to make sure this doesn't change while another
2677 * thread is in srv_set_dyncookie().
2678 */
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002679 HA_RWLOCK_WRLOCK(PROXY_LOCK, &px->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002680 px->ck_opts |= PR_CK_DYNAMIC;
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002681 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &px->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002682
Willy Tarreaua275a372018-08-21 14:50:44 +02002683 for (s = px->srv; s != NULL; s = s->next) {
2684 HA_SPIN_LOCK(SERVER_LOCK, &s->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002685 srv_set_dyncookie(s);
Willy Tarreaua275a372018-08-21 14:50:44 +02002686 HA_SPIN_UNLOCK(SERVER_LOCK, &s->lock);
2687 }
2688
Olivier Houchard614f8d72017-03-14 20:08:46 +01002689 return 1;
2690}
2691
Willy Tarreaua275a372018-08-21 14:50:44 +02002692/* Parses the "disable dynamic-cookies backend" directive, it always returns 1.
2693 *
2694 * Grabs the proxy lock and each server's lock.
2695 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002696static int cli_parse_disable_dyncookie_backend(char **args, char *payload, struct appctx *appctx, void *private)
Olivier Houchard614f8d72017-03-14 20:08:46 +01002697{
2698 struct proxy *px;
2699 struct server *s;
2700
2701 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2702 return 1;
2703
2704 px = cli_find_backend(appctx, args[3]);
2705 if (!px)
2706 return 1;
2707
Willy Tarreau5e83d992019-07-30 11:59:34 +02002708 /* Note: this lock is to make sure this doesn't change while another
2709 * thread is in srv_set_dyncookie().
2710 */
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002711 HA_RWLOCK_WRLOCK(PROXY_LOCK, &px->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002712 px->ck_opts &= ~PR_CK_DYNAMIC;
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002713 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &px->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002714
2715 for (s = px->srv; s != NULL; s = s->next) {
Willy Tarreaua275a372018-08-21 14:50:44 +02002716 HA_SPIN_LOCK(SERVER_LOCK, &s->lock);
Willy Tarreau61cfdf42021-02-20 10:46:51 +01002717 if (!(s->flags & SRV_F_COOKIESET))
2718 ha_free(&s->cookie);
Willy Tarreaua275a372018-08-21 14:50:44 +02002719 HA_SPIN_UNLOCK(SERVER_LOCK, &s->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002720 }
2721
2722 return 1;
2723}
2724
Willy Tarreaua275a372018-08-21 14:50:44 +02002725/* Parses the "set dynamic-cookie-key backend" directive, it always returns 1.
2726 *
2727 * Grabs the proxy lock and each server's lock.
2728 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002729static int cli_parse_set_dyncookie_key_backend(char **args, char *payload, struct appctx *appctx, void *private)
Olivier Houchard614f8d72017-03-14 20:08:46 +01002730{
2731 struct proxy *px;
2732 struct server *s;
2733 char *newkey;
2734
2735 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2736 return 1;
2737
2738 px = cli_find_backend(appctx, args[3]);
2739 if (!px)
2740 return 1;
2741
Willy Tarreau9d008692019-08-09 11:21:01 +02002742 if (!*args[4])
2743 return cli_err(appctx, "String value expected.\n");
Olivier Houchard614f8d72017-03-14 20:08:46 +01002744
2745 newkey = strdup(args[4]);
Willy Tarreau9d008692019-08-09 11:21:01 +02002746 if (!newkey)
2747 return cli_err(appctx, "Failed to allocate memory.\n");
Willy Tarreaua275a372018-08-21 14:50:44 +02002748
Willy Tarreau5e83d992019-07-30 11:59:34 +02002749 /* Note: this lock is to make sure this doesn't change while another
2750 * thread is in srv_set_dyncookie().
2751 */
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002752 HA_RWLOCK_WRLOCK(PROXY_LOCK, &px->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002753 free(px->dyncookie_key);
2754 px->dyncookie_key = newkey;
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002755 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &px->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002756
Willy Tarreaua275a372018-08-21 14:50:44 +02002757 for (s = px->srv; s != NULL; s = s->next) {
2758 HA_SPIN_LOCK(SERVER_LOCK, &s->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002759 srv_set_dyncookie(s);
Willy Tarreaua275a372018-08-21 14:50:44 +02002760 HA_SPIN_UNLOCK(SERVER_LOCK, &s->lock);
2761 }
2762
Olivier Houchard614f8d72017-03-14 20:08:46 +01002763 return 1;
2764}
2765
Willy Tarreaua275a372018-08-21 14:50:44 +02002766/* Parses the "set maxconn frontend" directive, it always returns 1.
2767 *
2768 * Grabs the proxy lock.
2769 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002770static int cli_parse_set_maxconn_frontend(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002771{
2772 struct proxy *px;
2773 struct listener *l;
2774 int v;
2775
2776 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2777 return 1;
2778
2779 px = cli_find_frontend(appctx, args[3]);
2780 if (!px)
2781 return 1;
2782
Willy Tarreau9d008692019-08-09 11:21:01 +02002783 if (!*args[4])
2784 return cli_err(appctx, "Integer value expected.\n");
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002785
2786 v = atoi(args[4]);
Willy Tarreau9d008692019-08-09 11:21:01 +02002787 if (v < 0)
2788 return cli_err(appctx, "Value out of range.\n");
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002789
2790 /* OK, the value is fine, so we assign it to the proxy and to all of
2791 * its listeners. The blocked ones will be dequeued.
2792 */
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002793 HA_RWLOCK_WRLOCK(PROXY_LOCK, &px->lock);
Willy Tarreaua275a372018-08-21 14:50:44 +02002794
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002795 px->maxconn = v;
2796 list_for_each_entry(l, &px->conf.listeners, by_fe) {
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002797 if (l->state == LI_FULL)
2798 resume_listener(l);
2799 }
2800
Willy Tarreau241797a2019-12-10 14:10:52 +01002801 if (px->maxconn > px->feconn)
2802 dequeue_proxy_listeners(px);
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002803
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002804 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &px->lock);
Willy Tarreaua275a372018-08-21 14:50:44 +02002805
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002806 return 1;
2807}
2808
Willy Tarreaua275a372018-08-21 14:50:44 +02002809/* Parses the "shutdown frontend" directive, it always returns 1.
2810 *
2811 * Grabs the proxy lock.
2812 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002813static int cli_parse_shutdown_frontend(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau5212d7f2016-11-24 11:13:06 +01002814{
2815 struct proxy *px;
2816
2817 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2818 return 1;
2819
2820 px = cli_find_frontend(appctx, args[2]);
2821 if (!px)
2822 return 1;
2823
Willy Tarreauc3914d42020-09-24 08:39:22 +02002824 if (px->disabled)
Willy Tarreau9d008692019-08-09 11:21:01 +02002825 return cli_msg(appctx, LOG_NOTICE, "Frontend was already shut down.\n");
Willy Tarreau5212d7f2016-11-24 11:13:06 +01002826
Willy Tarreau5212d7f2016-11-24 11:13:06 +01002827 stop_proxy(px);
2828 return 1;
2829}
2830
Willy Tarreaua275a372018-08-21 14:50:44 +02002831/* Parses the "disable frontend" directive, it always returns 1.
2832 *
2833 * Grabs the proxy lock.
2834 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002835static int cli_parse_disable_frontend(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau15b9e682016-11-24 11:55:28 +01002836{
2837 struct proxy *px;
Willy Tarreaua275a372018-08-21 14:50:44 +02002838 int ret;
Willy Tarreau15b9e682016-11-24 11:55:28 +01002839
2840 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2841 return 1;
2842
2843 px = cli_find_frontend(appctx, args[2]);
2844 if (!px)
2845 return 1;
2846
Willy Tarreauc3914d42020-09-24 08:39:22 +02002847 if (px->disabled)
Willy Tarreau9d008692019-08-09 11:21:01 +02002848 return cli_msg(appctx, LOG_NOTICE, "Frontend was previously shut down, cannot disable.\n");
Willy Tarreau15b9e682016-11-24 11:55:28 +01002849
Willy Tarreauf18d9682020-09-24 08:04:27 +02002850 if (!px->li_ready)
2851 return cli_msg(appctx, LOG_NOTICE, "All sockets are already disabled.\n");
Willy Tarreau15b9e682016-11-24 11:55:28 +01002852
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002853 HA_RWLOCK_WRLOCK(PROXY_LOCK, &px->lock);
Willy Tarreaua275a372018-08-21 14:50:44 +02002854 ret = pause_proxy(px);
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002855 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &px->lock);
Willy Tarreaua275a372018-08-21 14:50:44 +02002856
Willy Tarreau9d008692019-08-09 11:21:01 +02002857 if (!ret)
2858 return cli_err(appctx, "Failed to pause frontend, check logs for precise cause.\n");
2859
Willy Tarreau15b9e682016-11-24 11:55:28 +01002860 return 1;
2861}
2862
Willy Tarreaua275a372018-08-21 14:50:44 +02002863/* Parses the "enable frontend" directive, it always returns 1.
2864 *
2865 * Grabs the proxy lock.
2866 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002867static int cli_parse_enable_frontend(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau15b9e682016-11-24 11:55:28 +01002868{
2869 struct proxy *px;
Willy Tarreaua275a372018-08-21 14:50:44 +02002870 int ret;
Willy Tarreau15b9e682016-11-24 11:55:28 +01002871
2872 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2873 return 1;
2874
2875 px = cli_find_frontend(appctx, args[2]);
2876 if (!px)
2877 return 1;
2878
Willy Tarreauc3914d42020-09-24 08:39:22 +02002879 if (px->disabled)
Willy Tarreau9d008692019-08-09 11:21:01 +02002880 return cli_err(appctx, "Frontend was previously shut down, cannot enable.\n");
Willy Tarreau15b9e682016-11-24 11:55:28 +01002881
Willy Tarreauf18d9682020-09-24 08:04:27 +02002882 if (px->li_ready == px->li_all)
2883 return cli_msg(appctx, LOG_NOTICE, "All sockets are already enabled.\n");
Willy Tarreau15b9e682016-11-24 11:55:28 +01002884
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002885 HA_RWLOCK_WRLOCK(PROXY_LOCK, &px->lock);
Willy Tarreaua275a372018-08-21 14:50:44 +02002886 ret = resume_proxy(px);
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002887 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &px->lock);
Willy Tarreaua275a372018-08-21 14:50:44 +02002888
Willy Tarreau9d008692019-08-09 11:21:01 +02002889 if (!ret)
2890 return cli_err(appctx, "Failed to resume frontend, check logs for precise cause (port conflict?).\n");
Willy Tarreau15b9e682016-11-24 11:55:28 +01002891 return 1;
2892}
2893
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002894/* "show errors" handler for the CLI. Returns 0 if wants to continue, 1 to stop
2895 * now.
2896 */
2897static int cli_parse_show_errors(char **args, char *payload, struct appctx *appctx, void *private)
2898{
2899 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
2900 return 1;
2901
2902 if (*args[2]) {
2903 struct proxy *px;
2904
2905 px = proxy_find_by_name(args[2], 0, 0);
2906 if (px)
2907 appctx->ctx.errors.iid = px->uuid;
2908 else
2909 appctx->ctx.errors.iid = atoi(args[2]);
2910
Willy Tarreau9d008692019-08-09 11:21:01 +02002911 if (!appctx->ctx.errors.iid)
2912 return cli_err(appctx, "No such proxy.\n");
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002913 }
2914 else
2915 appctx->ctx.errors.iid = -1; // dump all proxies
2916
2917 appctx->ctx.errors.flag = 0;
2918 if (strcmp(args[3], "request") == 0)
2919 appctx->ctx.errors.flag |= 4; // ignore response
2920 else if (strcmp(args[3], "response") == 0)
2921 appctx->ctx.errors.flag |= 2; // ignore request
2922 appctx->ctx.errors.px = NULL;
2923 return 0;
2924}
2925
2926/* This function dumps all captured errors onto the stream interface's
2927 * read buffer. It returns 0 if the output buffer is full and it needs
2928 * to be called again, otherwise non-zero.
2929 */
2930static int cli_io_handler_show_errors(struct appctx *appctx)
2931{
2932 struct stream_interface *si = appctx->owner;
2933 extern const char *monthname[12];
2934
2935 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW)))
2936 return 1;
2937
2938 chunk_reset(&trash);
2939
2940 if (!appctx->ctx.errors.px) {
2941 /* the function had not been called yet, let's prepare the
2942 * buffer for a response.
2943 */
2944 struct tm tm;
2945
2946 get_localtime(date.tv_sec, &tm);
2947 chunk_appendf(&trash, "Total events captured on [%02d/%s/%04d:%02d:%02d:%02d.%03d] : %u\n",
2948 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
2949 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(date.tv_usec/1000),
2950 error_snapshot_id);
2951
Willy Tarreau36b27362018-09-07 19:55:44 +02002952 if (ci_putchk(si_ic(si), &trash) == -1)
2953 goto cant_send;
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002954
2955 appctx->ctx.errors.px = proxies_list;
2956 appctx->ctx.errors.bol = 0;
2957 appctx->ctx.errors.ptr = -1;
2958 }
2959
2960 /* we have two inner loops here, one for the proxy, the other one for
2961 * the buffer.
2962 */
2963 while (appctx->ctx.errors.px) {
2964 struct error_snapshot *es;
2965
Willy Tarreau55039082020-10-20 17:38:10 +02002966 HA_RWLOCK_RDLOCK(PROXY_LOCK, &appctx->ctx.errors.px->lock);
Willy Tarreau36b27362018-09-07 19:55:44 +02002967
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002968 if ((appctx->ctx.errors.flag & 1) == 0) {
Willy Tarreauc55015e2018-09-07 19:02:32 +02002969 es = appctx->ctx.errors.px->invalid_req;
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002970 if (appctx->ctx.errors.flag & 2) // skip req
2971 goto next;
2972 }
2973 else {
Willy Tarreauc55015e2018-09-07 19:02:32 +02002974 es = appctx->ctx.errors.px->invalid_rep;
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002975 if (appctx->ctx.errors.flag & 4) // skip resp
2976 goto next;
2977 }
2978
Willy Tarreauc55015e2018-09-07 19:02:32 +02002979 if (!es)
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002980 goto next;
2981
2982 if (appctx->ctx.errors.iid >= 0 &&
2983 appctx->ctx.errors.px->uuid != appctx->ctx.errors.iid &&
Olivier Houchardbdb00c52020-03-12 15:30:17 +01002984 (!es->oe || es->oe->uuid != appctx->ctx.errors.iid))
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002985 goto next;
2986
2987 if (appctx->ctx.errors.ptr < 0) {
2988 /* just print headers now */
2989
2990 char pn[INET6_ADDRSTRLEN];
2991 struct tm tm;
2992 int port;
2993
2994 get_localtime(es->when.tv_sec, &tm);
2995 chunk_appendf(&trash, " \n[%02d/%s/%04d:%02d:%02d:%02d.%03d]",
2996 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
2997 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(es->when.tv_usec/1000));
2998
2999 switch (addr_to_str(&es->src, pn, sizeof(pn))) {
3000 case AF_INET:
3001 case AF_INET6:
3002 port = get_host_port(&es->src);
3003 break;
3004 default:
3005 port = 0;
3006 }
3007
3008 switch (appctx->ctx.errors.flag & 1) {
3009 case 0:
3010 chunk_appendf(&trash,
3011 " frontend %s (#%d): invalid request\n"
3012 " backend %s (#%d)",
3013 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
Olivier Houchardbdb00c52020-03-12 15:30:17 +01003014 (es->oe && es->oe->cap & PR_CAP_BE) ? es->oe->id : "<NONE>",
3015 (es->oe && es->oe->cap & PR_CAP_BE) ? es->oe->uuid : -1);
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003016 break;
3017 case 1:
3018 chunk_appendf(&trash,
3019 " backend %s (#%d): invalid response\n"
3020 " frontend %s (#%d)",
3021 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
Olivier Houchardbdb00c52020-03-12 15:30:17 +01003022 es->oe ? es->oe->id : "<NONE>" , es->oe ? es->oe->uuid : -1);
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003023 break;
3024 }
3025
3026 chunk_appendf(&trash,
3027 ", server %s (#%d), event #%u, src %s:%d\n"
3028 " buffer starts at %llu (including %u out), %u free,\n"
3029 " len %u, wraps at %u, error at position %u\n",
3030 es->srv ? es->srv->id : "<NONE>",
3031 es->srv ? es->srv->puid : -1,
3032 es->ev_id, pn, port,
3033 es->buf_ofs, es->buf_out,
3034 global.tune.bufsize - es->buf_out - es->buf_len,
3035 es->buf_len, es->buf_wrap, es->buf_err);
3036
3037 if (es->show)
3038 es->show(&trash, es);
3039
3040 chunk_appendf(&trash, " \n");
3041
Willy Tarreau36b27362018-09-07 19:55:44 +02003042 if (ci_putchk(si_ic(si), &trash) == -1)
3043 goto cant_send_unlock;
3044
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003045 appctx->ctx.errors.ptr = 0;
3046 appctx->ctx.errors.ev_id = es->ev_id;
3047 }
3048
3049 if (appctx->ctx.errors.ev_id != es->ev_id) {
3050 /* the snapshot changed while we were dumping it */
3051 chunk_appendf(&trash,
3052 " WARNING! update detected on this snapshot, dump interrupted. Please re-check!\n");
Willy Tarreau36b27362018-09-07 19:55:44 +02003053 if (ci_putchk(si_ic(si), &trash) == -1)
3054 goto cant_send_unlock;
3055
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003056 goto next;
3057 }
3058
3059 /* OK, ptr >= 0, so we have to dump the current line */
Willy Tarreau4bc7d902018-09-07 20:07:17 +02003060 while (appctx->ctx.errors.ptr < es->buf_len && appctx->ctx.errors.ptr < global.tune.bufsize) {
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003061 int newptr;
3062 int newline;
3063
3064 newline = appctx->ctx.errors.bol;
3065 newptr = dump_text_line(&trash, es->buf, global.tune.bufsize, es->buf_len, &newline, appctx->ctx.errors.ptr);
3066 if (newptr == appctx->ctx.errors.ptr)
Willy Tarreau36b27362018-09-07 19:55:44 +02003067 goto cant_send_unlock;
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003068
Willy Tarreau36b27362018-09-07 19:55:44 +02003069 if (ci_putchk(si_ic(si), &trash) == -1)
3070 goto cant_send_unlock;
3071
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003072 appctx->ctx.errors.ptr = newptr;
3073 appctx->ctx.errors.bol = newline;
3074 };
3075 next:
Willy Tarreau55039082020-10-20 17:38:10 +02003076 HA_RWLOCK_RDUNLOCK(PROXY_LOCK, &appctx->ctx.errors.px->lock);
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003077 appctx->ctx.errors.bol = 0;
3078 appctx->ctx.errors.ptr = -1;
3079 appctx->ctx.errors.flag ^= 1;
3080 if (!(appctx->ctx.errors.flag & 1))
3081 appctx->ctx.errors.px = appctx->ctx.errors.px->next;
3082 }
3083
3084 /* dump complete */
3085 return 1;
Willy Tarreau36b27362018-09-07 19:55:44 +02003086
3087 cant_send_unlock:
Willy Tarreau55039082020-10-20 17:38:10 +02003088 HA_RWLOCK_RDUNLOCK(PROXY_LOCK, &appctx->ctx.errors.px->lock);
Willy Tarreau36b27362018-09-07 19:55:44 +02003089 cant_send:
Willy Tarreaudb398432018-11-15 11:08:52 +01003090 si_rx_room_blk(si);
Willy Tarreau36b27362018-09-07 19:55:44 +02003091 return 0;
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003092}
3093
William Lallemanda6c5f332016-11-19 02:25:36 +01003094/* register cli keywords */
3095static struct cli_kw_list cli_kws = {{ },{
Willy Tarreaub205bfd2021-05-07 11:38:37 +02003096 { { "disable", "frontend", NULL }, "disable frontend <frontend> : temporarily disable specific frontend", cli_parse_disable_frontend, NULL, NULL },
3097 { { "enable", "frontend", NULL }, "enable frontend <frontend> : re-enable specific frontend", cli_parse_enable_frontend, NULL, NULL },
3098 { { "set", "maxconn", "frontend", NULL }, "set maxconn frontend <frontend> <value> : change a frontend's maxconn setting", cli_parse_set_maxconn_frontend, NULL },
3099 { { "show","servers", "conn", NULL }, "show servers conn [<backend>] : dump server connections status (all or for a single backend)", cli_parse_show_servers, cli_io_handler_servers_state },
3100 { { "show","servers", "state", NULL }, "show servers state [<backend>] : dump volatile server information (all or for a single backend)", cli_parse_show_servers, cli_io_handler_servers_state },
3101 { { "show", "backend", NULL }, "show backend : list backends in the current running config", NULL, cli_io_handler_show_backend },
3102 { { "shutdown", "frontend", NULL }, "shutdown frontend <frontend> : stop a specific frontend", cli_parse_shutdown_frontend, NULL, NULL },
3103 { { "set", "dynamic-cookie-key", "backend", NULL }, "set dynamic-cookie-key backend <bk> <k> : change a backend secret key for dynamic cookies", cli_parse_set_dyncookie_key_backend, NULL },
3104 { { "enable", "dynamic-cookie", "backend", NULL }, "enable dynamic-cookie backend <bk> : enable dynamic cookies on a specific backend", cli_parse_enable_dyncookie_backend, NULL },
3105 { { "disable", "dynamic-cookie", "backend", NULL }, "disable dynamic-cookie backend <bk> : disable dynamic cookies on a specific backend", cli_parse_disable_dyncookie_backend, NULL },
3106 { { "show", "errors", NULL }, "show errors [<px>] [request|response] : report last request and/or response errors for each proxy", cli_parse_show_errors, cli_io_handler_show_errors, NULL },
William Lallemanda6c5f332016-11-19 02:25:36 +01003107 {{},}
3108}};
3109
Willy Tarreau0108d902018-11-25 19:14:37 +01003110INITCALL1(STG_REGISTER, cli_register_kw, &cli_kws);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003111
3112/*
3113 * Local variables:
3114 * c-indent-level: 8
3115 * c-basic-offset: 8
3116 * End:
3117 */