blob: 4e866b12247583a60fe2692487fcab94fbf4e4ac [file] [log] [blame]
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";
Krzysztof Piotr Oledzki6eb730d2007-11-03 23:41:58 +0100368 else
369 return "unknown";
370}
371
Willy Tarreau31a3cea2021-03-15 11:11:55 +0100372/* try to find among known options the one that looks closest to <word> by
373 * counting transitions between letters, digits and other characters. Will
374 * return the best matching word if found, otherwise NULL. An optional array
375 * of extra words to compare may be passed in <extra>, but it must then be
376 * terminated by a NULL entry. If unused it may be NULL.
377 */
378const char *proxy_find_best_option(const char *word, const char **extra)
379{
380 uint8_t word_sig[1024];
381 uint8_t list_sig[1024];
382 const char *best_ptr = NULL;
383 int dist, best_dist = INT_MAX;
384 int index;
385
386 make_word_fingerprint(word_sig, word);
387
388 for (index = 0; cfg_opts[index].name; index++) {
389 make_word_fingerprint(list_sig, cfg_opts[index].name);
390 dist = word_fingerprint_distance(word_sig, list_sig);
391 if (dist < best_dist) {
392 best_dist = dist;
393 best_ptr = cfg_opts[index].name;
394 }
395 }
396
397 for (index = 0; cfg_opts2[index].name; index++) {
398 make_word_fingerprint(list_sig, cfg_opts2[index].name);
399 dist = word_fingerprint_distance(word_sig, list_sig);
400 if (dist < best_dist) {
401 best_dist = dist;
402 best_ptr = cfg_opts2[index].name;
403 }
404 }
405
406 while (extra && *extra) {
407 make_word_fingerprint(list_sig, *extra);
408 dist = word_fingerprint_distance(word_sig, list_sig);
409 if (dist < best_dist) {
410 best_dist = dist;
411 best_ptr = *extra;
412 }
413 extra++;
414 }
415
416 if (best_dist > 2 * strlen(word) || (best_ptr && best_dist > 2 * strlen(best_ptr)))
417 best_ptr = NULL;
418 return best_ptr;
419}
420
Willy Tarreauf3950172009-10-10 18:35:51 +0200421/*
422 * This function scans the list of backends and servers to retrieve the first
423 * backend and the first server with the given names, and sets them in both
424 * parameters. It returns zero if either is not found, or non-zero and sets
425 * the ones it did not found to NULL. If a NULL pointer is passed for the
426 * backend, only the pointer to the server will be updated.
427 */
428int get_backend_server(const char *bk_name, const char *sv_name,
429 struct proxy **bk, struct server **sv)
430{
431 struct proxy *p;
432 struct server *s;
Willy Tarreau7ecc4202014-03-15 07:57:11 +0100433 int sid;
Willy Tarreauf3950172009-10-10 18:35:51 +0200434
435 *sv = NULL;
436
Willy Tarreau050536d2012-10-04 08:47:34 +0200437 sid = -1;
Willy Tarreaucfeaa472009-10-10 22:33:08 +0200438 if (*sv_name == '#')
439 sid = atoi(sv_name + 1);
440
Willy Tarreau9e0bb102015-05-26 11:24:42 +0200441 p = proxy_be_by_name(bk_name);
Willy Tarreauf3950172009-10-10 18:35:51 +0200442 if (bk)
443 *bk = p;
444 if (!p)
445 return 0;
446
447 for (s = p->srv; s; s = s->next)
Willy Tarreau4055a102012-11-15 00:15:18 +0100448 if ((sid >= 0 && s->puid == sid) ||
449 (sid < 0 && strcmp(s->id, sv_name) == 0))
Willy Tarreauf3950172009-10-10 18:35:51 +0200450 break;
451 *sv = s;
452 if (!s)
453 return 0;
454 return 1;
455}
456
Willy Tarreaue219db72007-12-03 01:30:13 +0100457/* This function parses a "timeout" statement in a proxy section. It returns
458 * -1 if there is any error, 1 for a warning, otherwise zero. If it does not
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200459 * return zero, it will write an error or warning message into a preallocated
460 * buffer returned at <err>. The trailing is not be written. The function must
461 * be called with <args> pointing to the first command line word, with <proxy>
462 * pointing to the proxy being parsed, and <defpx> to the default proxy or NULL.
463 * As a special case for compatibility with older configs, it also accepts
464 * "{cli|srv|con}timeout" in args[0].
Willy Tarreaue219db72007-12-03 01:30:13 +0100465 */
Willy Tarreau9de1bbd2008-07-09 20:34:27 +0200466static int proxy_parse_timeout(char **args, int section, struct proxy *proxy,
Willy Tarreau01825162021-03-09 09:53:46 +0100467 const struct proxy *defpx, const char *file, int line,
Willy Tarreau28a47d62012-09-18 20:02:48 +0200468 char **err)
Willy Tarreaue219db72007-12-03 01:30:13 +0100469{
470 unsigned timeout;
471 int retval, cap;
472 const char *res, *name;
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200473 int *tv = NULL;
Willy Tarreau01825162021-03-09 09:53:46 +0100474 const int *td = NULL;
Willy Tarreaue219db72007-12-03 01:30:13 +0100475
476 retval = 0;
Willy Tarreau9de1bbd2008-07-09 20:34:27 +0200477
478 /* simply skip "timeout" but remain compatible with old form */
479 if (strcmp(args[0], "timeout") == 0)
480 args++;
481
Willy Tarreaue219db72007-12-03 01:30:13 +0100482 name = args[0];
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100483 if (strcmp(args[0], "client") == 0) {
Willy Tarreaue219db72007-12-03 01:30:13 +0100484 name = "client";
Willy Tarreaud7c30f92007-12-03 01:38:36 +0100485 tv = &proxy->timeout.client;
486 td = &defpx->timeout.client;
Willy Tarreaue219db72007-12-03 01:30:13 +0100487 cap = PR_CAP_FE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100488 } else if (strcmp(args[0], "tarpit") == 0) {
Willy Tarreaue219db72007-12-03 01:30:13 +0100489 tv = &proxy->timeout.tarpit;
490 td = &defpx->timeout.tarpit;
Willy Tarreau51c9bde2008-01-06 13:40:03 +0100491 cap = PR_CAP_FE | PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100492 } else if (strcmp(args[0], "http-keep-alive") == 0) {
Willy Tarreaub16a5742010-01-10 14:46:16 +0100493 tv = &proxy->timeout.httpka;
494 td = &defpx->timeout.httpka;
495 cap = PR_CAP_FE | PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100496 } else if (strcmp(args[0], "http-request") == 0) {
Willy Tarreau036fae02008-01-06 13:24:40 +0100497 tv = &proxy->timeout.httpreq;
498 td = &defpx->timeout.httpreq;
Willy Tarreaucd7afc02009-07-12 10:03:17 +0200499 cap = PR_CAP_FE | PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100500 } else if (strcmp(args[0], "server") == 0) {
Willy Tarreaue219db72007-12-03 01:30:13 +0100501 name = "server";
Willy Tarreaud7c30f92007-12-03 01:38:36 +0100502 tv = &proxy->timeout.server;
503 td = &defpx->timeout.server;
Willy Tarreaue219db72007-12-03 01:30:13 +0100504 cap = PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100505 } else if (strcmp(args[0], "connect") == 0) {
Willy Tarreaue219db72007-12-03 01:30:13 +0100506 name = "connect";
Willy Tarreaud7c30f92007-12-03 01:38:36 +0100507 tv = &proxy->timeout.connect;
508 td = &defpx->timeout.connect;
Willy Tarreaue219db72007-12-03 01:30:13 +0100509 cap = PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100510 } else if (strcmp(args[0], "check") == 0) {
Krzysztof Piotr Oledzki5259dfe2008-01-21 01:54:06 +0100511 tv = &proxy->timeout.check;
512 td = &defpx->timeout.check;
513 cap = PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100514 } else if (strcmp(args[0], "queue") == 0) {
Willy Tarreaue219db72007-12-03 01:30:13 +0100515 tv = &proxy->timeout.queue;
516 td = &defpx->timeout.queue;
517 cap = PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100518 } else if (strcmp(args[0], "tunnel") == 0) {
Willy Tarreauce887fd2012-05-12 12:50:00 +0200519 tv = &proxy->timeout.tunnel;
520 td = &defpx->timeout.tunnel;
521 cap = PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100522 } else if (strcmp(args[0], "client-fin") == 0) {
Willy Tarreau05cdd962014-05-10 14:30:07 +0200523 tv = &proxy->timeout.clientfin;
524 td = &defpx->timeout.clientfin;
525 cap = PR_CAP_FE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100526 } else if (strcmp(args[0], "server-fin") == 0) {
Willy Tarreau05cdd962014-05-10 14:30:07 +0200527 tv = &proxy->timeout.serverfin;
528 td = &defpx->timeout.serverfin;
529 cap = PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100530 } else if (strcmp(args[0], "clitimeout") == 0) {
Tim Duesterhus86e6b6e2019-05-14 20:57:59 +0200531 memprintf(err, "the '%s' directive is not supported anymore since HAProxy 2.1. Use 'timeout client'.", args[0]);
532 return -1;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100533 } else if (strcmp(args[0], "srvtimeout") == 0) {
Tim Duesterhus86e6b6e2019-05-14 20:57:59 +0200534 memprintf(err, "the '%s' directive is not supported anymore since HAProxy 2.1. Use 'timeout server'.", args[0]);
535 return -1;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100536 } else if (strcmp(args[0], "contimeout") == 0) {
Tim Duesterhus86e6b6e2019-05-14 20:57:59 +0200537 memprintf(err, "the '%s' directive is not supported anymore since HAProxy 2.1. Use 'timeout connect'.", args[0]);
538 return -1;
Willy Tarreaue219db72007-12-03 01:30:13 +0100539 } else {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200540 memprintf(err,
541 "'timeout' supports 'client', 'server', 'connect', 'check', "
Willy Tarreau05cdd962014-05-10 14:30:07 +0200542 "'queue', 'http-keep-alive', 'http-request', 'tunnel', 'tarpit', "
543 "'client-fin' and 'server-fin' (got '%s')",
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200544 args[0]);
Willy Tarreaue219db72007-12-03 01:30:13 +0100545 return -1;
546 }
547
548 if (*args[1] == 0) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200549 memprintf(err, "'timeout %s' expects an integer value (in milliseconds)", name);
Willy Tarreaue219db72007-12-03 01:30:13 +0100550 return -1;
551 }
552
553 res = parse_time_err(args[1], &timeout, TIME_UNIT_MS);
Willy Tarreau9faebe32019-06-07 19:00:37 +0200554 if (res == PARSE_TIME_OVER) {
555 memprintf(err, "timer overflow in argument '%s' to 'timeout %s' (maximum value is 2147483647 ms or ~24.8 days)",
556 args[1], name);
557 return -1;
558 }
559 else if (res == PARSE_TIME_UNDER) {
560 memprintf(err, "timer underflow in argument '%s' to 'timeout %s' (minimum non-null value is 1 ms)",
561 args[1], name);
562 return -1;
563 }
564 else if (res) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200565 memprintf(err, "unexpected character '%c' in 'timeout %s'", *res, name);
Willy Tarreaue219db72007-12-03 01:30:13 +0100566 return -1;
567 }
568
569 if (!(proxy->cap & cap)) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200570 memprintf(err, "'timeout %s' will be ignored because %s '%s' has no %s capability",
571 name, proxy_type_str(proxy), proxy->id,
572 (cap & PR_CAP_BE) ? "backend" : "frontend");
Willy Tarreaue219db72007-12-03 01:30:13 +0100573 retval = 1;
574 }
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200575 else if (defpx && *tv != *td) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200576 memprintf(err, "overwriting 'timeout %s' which was already specified", name);
Willy Tarreaue219db72007-12-03 01:30:13 +0100577 retval = 1;
578 }
579
Willy Tarreaufac5b592014-05-22 08:24:46 +0200580 if (*args[2] != 0) {
581 memprintf(err, "'timeout %s' : unexpected extra argument '%s' after value '%s'.", name, args[2], args[1]);
582 retval = -1;
583 }
584
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200585 *tv = MS_TO_TICKS(timeout);
Willy Tarreaue219db72007-12-03 01:30:13 +0100586 return retval;
587}
588
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100589/* This function parses a "rate-limit" statement in a proxy section. It returns
590 * -1 if there is any error, 1 for a warning, otherwise zero. If it does not
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200591 * return zero, it will write an error or warning message into a preallocated
592 * buffer returned at <err>. The function must be called with <args> pointing
593 * to the first command line word, with <proxy> pointing to the proxy being
594 * parsed, and <defpx> to the default proxy or NULL.
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100595 */
596static int proxy_parse_rate_limit(char **args, int section, struct proxy *proxy,
Willy Tarreau01825162021-03-09 09:53:46 +0100597 const struct proxy *defpx, const char *file, int line,
Willy Tarreau28a47d62012-09-18 20:02:48 +0200598 char **err)
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100599{
William Dauchybb9da0b2020-01-16 01:34:27 +0100600 int retval;
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200601 char *res;
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100602 unsigned int *tv = NULL;
Willy Tarreau01825162021-03-09 09:53:46 +0100603 const unsigned int *td = NULL;
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100604 unsigned int val;
605
606 retval = 0;
607
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200608 if (strcmp(args[1], "sessions") == 0) {
Willy Tarreau13a34bd2009-05-10 18:52:49 +0200609 tv = &proxy->fe_sps_lim;
610 td = &defpx->fe_sps_lim;
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200611 }
612 else {
613 memprintf(err, "'%s' only supports 'sessions' (got '%s')", args[0], args[1]);
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100614 return -1;
615 }
616
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200617 if (*args[2] == 0) {
618 memprintf(err, "'%s %s' expects expects an integer value (in sessions/second)", args[0], args[1]);
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100619 return -1;
620 }
621
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200622 val = strtoul(args[2], &res, 0);
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100623 if (*res) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200624 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 +0100625 return -1;
626 }
627
William Dauchybb9da0b2020-01-16 01:34:27 +0100628 if (!(proxy->cap & PR_CAP_FE)) {
629 memprintf(err, "%s %s will be ignored because %s '%s' has no frontend capability",
630 args[0], args[1], proxy_type_str(proxy), proxy->id);
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100631 retval = 1;
632 }
633 else if (defpx && *tv != *td) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200634 memprintf(err, "overwriting %s %s which was already specified", args[0], args[1]);
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100635 retval = 1;
636 }
637
638 *tv = val;
639 return retval;
640}
641
Willy Tarreauc35362a2014-04-25 13:58:37 +0200642/* This function parses a "max-keep-alive-queue" statement in a proxy section.
643 * It returns -1 if there is any error, 1 for a warning, otherwise zero. If it
644 * does not return zero, it will write an error or warning message into a
645 * preallocated buffer returned at <err>. The function must be called with
646 * <args> pointing to the first command line word, with <proxy> pointing to
647 * the proxy being parsed, and <defpx> to the default proxy or NULL.
648 */
649static int proxy_parse_max_ka_queue(char **args, int section, struct proxy *proxy,
Willy Tarreau01825162021-03-09 09:53:46 +0100650 const struct proxy *defpx, const char *file, int line,
Willy Tarreauc35362a2014-04-25 13:58:37 +0200651 char **err)
652{
653 int retval;
654 char *res;
655 unsigned int val;
656
657 retval = 0;
658
659 if (*args[1] == 0) {
660 memprintf(err, "'%s' expects expects an integer value (or -1 to disable)", args[0]);
661 return -1;
662 }
663
664 val = strtol(args[1], &res, 0);
665 if (*res) {
666 memprintf(err, "'%s' : unexpected character '%c' in integer value '%s'", args[0], *res, args[1]);
667 return -1;
668 }
669
670 if (!(proxy->cap & PR_CAP_BE)) {
671 memprintf(err, "%s will be ignored because %s '%s' has no backend capability",
672 args[0], proxy_type_str(proxy), proxy->id);
673 retval = 1;
674 }
675
676 /* we store <val+1> so that a user-facing value of -1 is stored as zero (default) */
677 proxy->max_ka_queue = val + 1;
678 return retval;
679}
680
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +0200681/* This function parses a "declare" statement in a proxy section. It returns -1
682 * if there is any error, 1 for warning, otherwise 0. If it does not return zero,
683 * it will write an error or warning message into a preallocated buffer returned
684 * at <err>. The function must be called with <args> pointing to the first command
685 * line word, with <proxy> pointing to the proxy being parsed, and <defpx> to the
686 * default proxy or NULL.
687 */
688static int proxy_parse_declare(char **args, int section, struct proxy *curpx,
Willy Tarreau01825162021-03-09 09:53:46 +0100689 const struct proxy *defpx, const char *file, int line,
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +0200690 char **err)
691{
692 /* Capture keyword wannot be declared in a default proxy. */
693 if (curpx == defpx) {
Joseph Herlant9edebb82018-11-15 11:50:44 -0800694 memprintf(err, "'%s' not available in default section", args[0]);
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +0200695 return -1;
696 }
697
Thayne McCombs8f0cc5c2021-01-07 21:35:52 -0700698 /* Capture keyword is only available in frontend. */
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +0200699 if (!(curpx->cap & PR_CAP_FE)) {
Joseph Herlant9edebb82018-11-15 11:50:44 -0800700 memprintf(err, "'%s' only available in frontend or listen section", args[0]);
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +0200701 return -1;
702 }
703
704 /* Check mandatory second keyword. */
705 if (!args[1] || !*args[1]) {
706 memprintf(err, "'%s' needs a second keyword that specify the type of declaration ('capture')", args[0]);
707 return -1;
708 }
709
Joseph Herlant59dd2952018-11-15 11:46:55 -0800710 /* Actually, declare is only available for declaring capture
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +0200711 * slot, but in the future it can declare maps or variables.
Joseph Herlant59dd2952018-11-15 11:46:55 -0800712 * So, this section permits to check and switch according with
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +0200713 * the second keyword.
714 */
715 if (strcmp(args[1], "capture") == 0) {
716 char *error = NULL;
717 long len;
718 struct cap_hdr *hdr;
719
720 /* Check the next keyword. */
721 if (!args[2] || !*args[2] ||
722 (strcmp(args[2], "response") != 0 &&
723 strcmp(args[2], "request") != 0)) {
724 memprintf(err, "'%s %s' requires a direction ('request' or 'response')", args[0], args[1]);
725 return -1;
726 }
727
728 /* Check the 'len' keyword. */
729 if (!args[3] || !*args[3] || strcmp(args[3], "len") != 0) {
730 memprintf(err, "'%s %s' requires a capture length ('len')", args[0], args[1]);
731 return -1;
732 }
733
734 /* Check the length value. */
735 if (!args[4] || !*args[4]) {
736 memprintf(err, "'%s %s': 'len' requires a numeric value that represents the "
737 "capture length",
738 args[0], args[1]);
739 return -1;
740 }
741
742 /* convert the length value. */
743 len = strtol(args[4], &error, 10);
744 if (*error != '\0') {
745 memprintf(err, "'%s %s': cannot parse the length '%s'.",
746 args[0], args[1], args[3]);
747 return -1;
748 }
749
750 /* check length. */
751 if (len <= 0) {
752 memprintf(err, "length must be > 0");
753 return -1;
754 }
755
756 /* register the capture. */
Vincent Bernat02779b62016-04-03 13:48:43 +0200757 hdr = calloc(1, sizeof(*hdr));
Remi Tricot-Le Breton581d8922021-05-12 18:04:46 +0200758 if (!hdr) {
759 memprintf(err, "proxy '%s': out of memory while registering a capture", curpx->id);
760 return -1;
761 }
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +0200762 hdr->name = NULL; /* not a header capture */
763 hdr->namelen = 0;
764 hdr->len = len;
765 hdr->pool = create_pool("caphdr", hdr->len + 1, MEM_F_SHARED);
766
767 if (strcmp(args[2], "request") == 0) {
768 hdr->next = curpx->req_cap;
769 hdr->index = curpx->nb_req_cap++;
770 curpx->req_cap = hdr;
771 }
772 if (strcmp(args[2], "response") == 0) {
773 hdr->next = curpx->rsp_cap;
774 hdr->index = curpx->nb_rsp_cap++;
775 curpx->rsp_cap = hdr;
776 }
777 return 0;
778 }
779 else {
780 memprintf(err, "unknown declaration type '%s' (supports 'capture')", args[1]);
781 return -1;
782 }
783}
784
Olivier Houcharda254a372019-04-05 15:30:12 +0200785/* This function parses a "retry-on" statement */
786static int
787proxy_parse_retry_on(char **args, int section, struct proxy *curpx,
Willy Tarreau01825162021-03-09 09:53:46 +0100788 const struct proxy *defpx, const char *file, int line,
Olivier Houcharda254a372019-04-05 15:30:12 +0200789 char **err)
790{
791 int i;
792
793 if (!(*args[1])) {
794 memprintf(err, "'%s' needs at least one keyword to specify when to retry", args[0]);
795 return -1;
796 }
797 if (!(curpx->cap & PR_CAP_BE)) {
798 memprintf(err, "'%s' only available in backend or listen section", args[0]);
799 return -1;
800 }
801 curpx->retry_type = 0;
802 for (i = 1; *(args[i]); i++) {
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100803 if (strcmp(args[i], "conn-failure") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200804 curpx->retry_type |= PR_RE_CONN_FAILED;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100805 else if (strcmp(args[i], "empty-response") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200806 curpx->retry_type |= PR_RE_DISCONNECTED;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100807 else if (strcmp(args[i], "response-timeout") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200808 curpx->retry_type |= PR_RE_TIMEOUT;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100809 else if (strcmp(args[i], "401") == 0)
Julien Pivotto2de240a2020-11-12 11:14:05 +0100810 curpx->retry_type |= PR_RE_401;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100811 else if (strcmp(args[i], "403") == 0)
Julien Pivotto2de240a2020-11-12 11:14:05 +0100812 curpx->retry_type |= PR_RE_403;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100813 else if (strcmp(args[i], "404") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200814 curpx->retry_type |= PR_RE_404;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100815 else if (strcmp(args[i], "408") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200816 curpx->retry_type |= PR_RE_408;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100817 else if (strcmp(args[i], "425") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200818 curpx->retry_type |= PR_RE_425;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100819 else if (strcmp(args[i], "500") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200820 curpx->retry_type |= PR_RE_500;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100821 else if (strcmp(args[i], "501") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200822 curpx->retry_type |= PR_RE_501;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100823 else if (strcmp(args[i], "502") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200824 curpx->retry_type |= PR_RE_502;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100825 else if (strcmp(args[i], "503") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200826 curpx->retry_type |= PR_RE_503;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100827 else if (strcmp(args[i], "504") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200828 curpx->retry_type |= PR_RE_504;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100829 else if (strcmp(args[i], "0rtt-rejected") == 0)
Olivier Houchard865d8392019-05-03 22:46:27 +0200830 curpx->retry_type |= PR_RE_EARLY_ERROR;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100831 else if (strcmp(args[i], "junk-response") == 0)
Olivier Houcharde3249a92019-05-03 23:01:47 +0200832 curpx->retry_type |= PR_RE_JUNK_REQUEST;
Olivier Houchardddf0e032019-05-10 18:05:40 +0200833 else if (!(strcmp(args[i], "all-retryable-errors")))
834 curpx->retry_type |= PR_RE_CONN_FAILED | PR_RE_DISCONNECTED |
835 PR_RE_TIMEOUT | PR_RE_500 | PR_RE_502 |
836 PR_RE_503 | PR_RE_504 | PR_RE_EARLY_ERROR |
837 PR_RE_JUNK_REQUEST;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100838 else if (strcmp(args[i], "none") == 0) {
Olivier Houcharda254a372019-04-05 15:30:12 +0200839 if (i != 1 || *args[i + 1]) {
840 memprintf(err, "'%s' 'none' keyworld only usable alone", args[0]);
841 return -1;
842 }
843 } else {
844 memprintf(err, "'%s': unknown keyword '%s'", args[0], args[i]);
845 return -1;
846 }
847
848 }
849
850
851 return 0;
852}
853
Willy Tarreau52543212020-07-09 05:58:51 +0200854#ifdef TCP_KEEPCNT
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900855/* This function parses "{cli|srv}tcpka-cnt" statements */
856static int proxy_parse_tcpka_cnt(char **args, int section, struct proxy *proxy,
Willy Tarreau01825162021-03-09 09:53:46 +0100857 const struct proxy *defpx, const char *file, int line,
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900858 char **err)
859{
860 int retval;
861 char *res;
862 unsigned int tcpka_cnt;
863
864 retval = 0;
865
866 if (*args[1] == 0) {
867 memprintf(err, "'%s' expects an integer value", args[0]);
868 return -1;
869 }
870
871 tcpka_cnt = strtol(args[1], &res, 0);
872 if (*res) {
873 memprintf(err, "'%s' : unexpected character '%c' in integer value '%s'", args[0], *res, args[1]);
874 return -1;
875 }
876
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100877 if (strcmp(args[0], "clitcpka-cnt") == 0) {
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900878 if (!(proxy->cap & PR_CAP_FE)) {
879 memprintf(err, "%s will be ignored because %s '%s' has no frontend capability",
880 args[0], proxy_type_str(proxy), proxy->id);
881 retval = 1;
882 }
883 proxy->clitcpka_cnt = tcpka_cnt;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100884 } else if (strcmp(args[0], "srvtcpka-cnt") == 0) {
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900885 if (!(proxy->cap & PR_CAP_BE)) {
886 memprintf(err, "%s will be ignored because %s '%s' has no backend capability",
887 args[0], proxy_type_str(proxy), proxy->id);
888 retval = 1;
889 }
890 proxy->srvtcpka_cnt = tcpka_cnt;
891 } else {
892 /* unreachable */
893 memprintf(err, "'%s': unknown keyword", args[0]);
894 return -1;
895 }
896
897 return retval;
898}
Willy Tarreau52543212020-07-09 05:58:51 +0200899#endif
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900900
Willy Tarreau52543212020-07-09 05:58:51 +0200901#ifdef TCP_KEEPIDLE
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900902/* This function parses "{cli|srv}tcpka-idle" statements */
903static int proxy_parse_tcpka_idle(char **args, int section, struct proxy *proxy,
Willy Tarreau01825162021-03-09 09:53:46 +0100904 const struct proxy *defpx, const char *file, int line,
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900905 char **err)
906{
907 int retval;
908 const char *res;
909 unsigned int tcpka_idle;
910
911 retval = 0;
912
913 if (*args[1] == 0) {
914 memprintf(err, "'%s' expects an integer value", args[0]);
915 return -1;
916 }
917 res = parse_time_err(args[1], &tcpka_idle, TIME_UNIT_S);
918 if (res == PARSE_TIME_OVER) {
919 memprintf(err, "timer overflow in argument '%s' to '%s' (maximum value is 2147483647 ms or ~24.8 days)",
920 args[1], args[0]);
921 return -1;
922 }
923 else if (res == PARSE_TIME_UNDER) {
924 memprintf(err, "timer underflow in argument '%s' to '%s' (minimum non-null value is 1 ms)",
925 args[1], args[0]);
926 return -1;
927 }
928 else if (res) {
929 memprintf(err, "unexpected character '%c' in argument to <%s>.\n", *res, args[0]);
930 return -1;
931 }
932
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100933 if (strcmp(args[0], "clitcpka-idle") == 0) {
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900934 if (!(proxy->cap & PR_CAP_FE)) {
935 memprintf(err, "%s will be ignored because %s '%s' has no frontend capability",
936 args[0], proxy_type_str(proxy), proxy->id);
937 retval = 1;
938 }
939 proxy->clitcpka_idle = tcpka_idle;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100940 } else if (strcmp(args[0], "srvtcpka-idle") == 0) {
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900941 if (!(proxy->cap & PR_CAP_BE)) {
942 memprintf(err, "%s will be ignored because %s '%s' has no backend capability",
943 args[0], proxy_type_str(proxy), proxy->id);
944 retval = 1;
945 }
946 proxy->srvtcpka_idle = tcpka_idle;
947 } else {
948 /* unreachable */
949 memprintf(err, "'%s': unknown keyword", args[0]);
950 return -1;
951 }
952
953 return retval;
954}
Willy Tarreau52543212020-07-09 05:58:51 +0200955#endif
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900956
Willy Tarreau52543212020-07-09 05:58:51 +0200957#ifdef TCP_KEEPINTVL
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900958/* This function parses "{cli|srv}tcpka-intvl" statements */
959static int proxy_parse_tcpka_intvl(char **args, int section, struct proxy *proxy,
Willy Tarreau01825162021-03-09 09:53:46 +0100960 const struct proxy *defpx, const char *file, int line,
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900961 char **err)
962{
963 int retval;
964 const char *res;
965 unsigned int tcpka_intvl;
966
967 retval = 0;
968
969 if (*args[1] == 0) {
970 memprintf(err, "'%s' expects an integer value", args[0]);
971 return -1;
972 }
973 res = parse_time_err(args[1], &tcpka_intvl, TIME_UNIT_S);
974 if (res == PARSE_TIME_OVER) {
975 memprintf(err, "timer overflow in argument '%s' to '%s' (maximum value is 2147483647 ms or ~24.8 days)",
976 args[1], args[0]);
977 return -1;
978 }
979 else if (res == PARSE_TIME_UNDER) {
980 memprintf(err, "timer underflow in argument '%s' to '%s' (minimum non-null value is 1 ms)",
981 args[1], args[0]);
982 return -1;
983 }
984 else if (res) {
985 memprintf(err, "unexpected character '%c' in argument to <%s>.\n", *res, args[0]);
986 return -1;
987 }
988
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100989 if (strcmp(args[0], "clitcpka-intvl") == 0) {
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900990 if (!(proxy->cap & PR_CAP_FE)) {
991 memprintf(err, "%s will be ignored because %s '%s' has no frontend capability",
992 args[0], proxy_type_str(proxy), proxy->id);
993 retval = 1;
994 }
995 proxy->clitcpka_intvl = tcpka_intvl;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100996 } else if (strcmp(args[0], "srvtcpka-intvl") == 0) {
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900997 if (!(proxy->cap & PR_CAP_BE)) {
998 memprintf(err, "%s will be ignored because %s '%s' has no backend capability",
999 args[0], proxy_type_str(proxy), proxy->id);
1000 retval = 1;
1001 }
1002 proxy->srvtcpka_intvl = tcpka_intvl;
1003 } else {
1004 /* unreachable */
1005 memprintf(err, "'%s': unknown keyword", args[0]);
1006 return -1;
1007 }
1008
1009 return retval;
1010}
Willy Tarreau52543212020-07-09 05:58:51 +02001011#endif
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +09001012
Willy Tarreau0a0f6a72021-02-12 13:52:11 +01001013/* This function inserts proxy <px> into the tree of known proxies (regular
1014 * ones or defaults depending on px->cap & PR_CAP_DEF). The proxy's name is
1015 * used as the storing key so it must already have been initialized.
Willy Tarreauf79d9502014-03-15 07:22:35 +01001016 */
1017void proxy_store_name(struct proxy *px)
1018{
Willy Tarreau0a0f6a72021-02-12 13:52:11 +01001019 struct eb_root *root = (px->cap & PR_CAP_DEF) ? &defproxy_by_name : &proxy_by_name;
1020
Willy Tarreauf79d9502014-03-15 07:22:35 +01001021 px->conf.by_name.key = px->id;
Willy Tarreau0a0f6a72021-02-12 13:52:11 +01001022 ebis_insert(root, &px->conf.by_name);
Willy Tarreauf79d9502014-03-15 07:22:35 +01001023}
1024
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001025/* Returns a pointer to the first proxy matching capabilities <cap> and id
1026 * <id>. NULL is returned if no match is found. If <table> is non-zero, it
1027 * only considers proxies having a table.
Willy Tarreaubc216c42011-08-02 11:25:54 +02001028 */
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001029struct proxy *proxy_find_by_id(int id, int cap, int table)
Willy Tarreau9e0bb102015-05-26 11:24:42 +02001030{
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001031 struct eb32_node *n;
Willy Tarreaubc216c42011-08-02 11:25:54 +02001032
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001033 for (n = eb32_lookup(&used_proxy_id, id); n; n = eb32_next(n)) {
1034 struct proxy *px = container_of(n, struct proxy, conf.id);
Willy Tarreaucfd837f2014-03-15 07:43:51 +01001035
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001036 if (px->uuid != id)
1037 break;
Alex Williams96532db2009-11-01 21:27:13 -05001038
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001039 if ((px->cap & cap) != cap)
1040 continue;
Alex Williams96532db2009-11-01 21:27:13 -05001041
Frédéric Lécaille1b8e68e2019-03-14 07:07:41 +01001042 if (table && (!px->table || !px->table->size))
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001043 continue;
Willy Tarreaucfd837f2014-03-15 07:43:51 +01001044
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001045 return px;
1046 }
1047 return NULL;
1048}
Willy Tarreaucfd837f2014-03-15 07:43:51 +01001049
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001050/* Returns a pointer to the first proxy matching either name <name>, or id
1051 * <name> if <name> begins with a '#'. NULL is returned if no match is found.
Willy Tarreau0a0f6a72021-02-12 13:52:11 +01001052 * If <table> is non-zero, it only considers proxies having a table. The search
1053 * is made into the regular proxies, unless <cap> has PR_CAP_DEF set in which
1054 * case it's searched into the defproxy tree.
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001055 */
1056struct proxy *proxy_find_by_name(const char *name, int cap, int table)
1057{
1058 struct proxy *curproxy;
Willy Tarreau9e0bb102015-05-26 11:24:42 +02001059
Willy Tarreau0a0f6a72021-02-12 13:52:11 +01001060 if (*name == '#' && !(cap & PR_CAP_DEF)) {
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001061 curproxy = proxy_find_by_id(atoi(name + 1), cap, table);
1062 if (curproxy)
Willy Tarreauc739aa82015-05-26 11:35:41 +02001063 return curproxy;
Alex Williams96532db2009-11-01 21:27:13 -05001064 }
Willy Tarreaucfd837f2014-03-15 07:43:51 +01001065 else {
Willy Tarreau0a0f6a72021-02-12 13:52:11 +01001066 struct eb_root *root;
Willy Tarreaucfd837f2014-03-15 07:43:51 +01001067 struct ebpt_node *node;
1068
Willy Tarreau0a0f6a72021-02-12 13:52:11 +01001069 root = (cap & PR_CAP_DEF) ? &defproxy_by_name : &proxy_by_name;
1070 for (node = ebis_lookup(root, name); node; node = ebpt_next(node)) {
Willy Tarreaucfd837f2014-03-15 07:43:51 +01001071 curproxy = container_of(node, struct proxy, conf.by_name);
Alex Williams96532db2009-11-01 21:27:13 -05001072
Willy Tarreaucfd837f2014-03-15 07:43:51 +01001073 if (strcmp(curproxy->id, name) != 0)
1074 break;
1075
1076 if ((curproxy->cap & cap) != cap)
1077 continue;
1078
Frédéric Lécaille1b8e68e2019-03-14 07:07:41 +01001079 if (table && (!curproxy->table || !curproxy->table->size))
Willy Tarreau9e0bb102015-05-26 11:24:42 +02001080 continue;
1081
Willy Tarreauc739aa82015-05-26 11:35:41 +02001082 return curproxy;
Willy Tarreaucfd837f2014-03-15 07:43:51 +01001083 }
1084 }
Willy Tarreauc739aa82015-05-26 11:35:41 +02001085 return NULL;
Alex Williams96532db2009-11-01 21:27:13 -05001086}
1087
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001088/* Finds the best match for a proxy with capabilities <cap>, name <name> and id
1089 * <id>. At most one of <id> or <name> may be different provided that <cap> is
1090 * valid. Either <id> or <name> may be left unspecified (0). The purpose is to
1091 * find a proxy based on some information from a previous configuration, across
1092 * reloads or during information exchange between peers.
1093 *
1094 * Names are looked up first if present, then IDs are compared if present. In
1095 * case of an inexact match whatever is forced in the configuration has
1096 * precedence in the following order :
1097 * - 1) forced ID (proves a renaming / change of proxy type)
1098 * - 2) proxy name+type (may indicate a move if ID differs)
1099 * - 3) automatic ID+type (may indicate a renaming)
1100 *
1101 * Depending on what is found, we can end up in the following situations :
1102 *
1103 * name id cap | possible causes
1104 * -------------+-----------------
1105 * -- -- -- | nothing found
1106 * -- -- ok | nothing found
1107 * -- ok -- | proxy deleted, ID points to next one
1108 * -- ok ok | proxy renamed, or deleted with ID pointing to next one
1109 * ok -- -- | proxy deleted, but other half with same name still here (before)
1110 * ok -- ok | proxy's ID changed (proxy moved in the config file)
1111 * ok ok -- | proxy deleted, but other half with same name still here (after)
1112 * ok ok ok | perfect match
1113 *
1114 * Upon return if <diff> is not NULL, it is zeroed then filled with up to 3 bits :
Baptiste Assmann8a027cc2015-07-03 11:03:33 +02001115 * - PR_FBM_MISMATCH_ID : proxy was found but ID differs
1116 * (and ID was not zero)
1117 * - PR_FBM_MISMATCH_NAME : proxy was found by ID but name differs
1118 * (and name was not NULL)
1119 * - PR_FBM_MISMATCH_PROXYTYPE : a proxy of different type was found with
1120 * the same name and/or id
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001121 *
1122 * Only a valid proxy is returned. If capabilities do not match, NULL is
1123 * returned. The caller can check <diff> to report detailed warnings / errors,
1124 * and decide whether or not to use what was found.
1125 */
1126struct proxy *proxy_find_best_match(int cap, const char *name, int id, int *diff)
1127{
1128 struct proxy *byname;
1129 struct proxy *byid;
1130
1131 if (!name && !id)
1132 return NULL;
1133
1134 if (diff)
1135 *diff = 0;
1136
1137 byname = byid = NULL;
1138
1139 if (name) {
1140 byname = proxy_find_by_name(name, cap, 0);
1141 if (byname && (!id || byname->uuid == id))
1142 return byname;
1143 }
1144
Joseph Herlant59dd2952018-11-15 11:46:55 -08001145 /* remaining possibilities :
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001146 * - name not set
1147 * - name set but not found
1148 * - name found, but ID doesn't match.
1149 */
1150 if (id) {
1151 byid = proxy_find_by_id(id, cap, 0);
1152 if (byid) {
1153 if (byname) {
1154 /* id+type found, name+type found, but not all 3.
1155 * ID wins only if forced, otherwise name wins.
1156 */
1157 if (byid->options & PR_O_FORCED_ID) {
1158 if (diff)
Baptiste Assmann8a027cc2015-07-03 11:03:33 +02001159 *diff |= PR_FBM_MISMATCH_NAME;
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001160 return byid;
1161 }
1162 else {
1163 if (diff)
Baptiste Assmann8a027cc2015-07-03 11:03:33 +02001164 *diff |= PR_FBM_MISMATCH_ID;
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001165 return byname;
1166 }
1167 }
1168
Joseph Herlant59dd2952018-11-15 11:46:55 -08001169 /* remaining possibilities :
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001170 * - name not set
1171 * - name set but not found
1172 */
1173 if (name && diff)
Baptiste Assmann8a027cc2015-07-03 11:03:33 +02001174 *diff |= PR_FBM_MISMATCH_NAME;
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001175 return byid;
1176 }
1177
1178 /* ID not found */
1179 if (byname) {
1180 if (diff)
Baptiste Assmann8a027cc2015-07-03 11:03:33 +02001181 *diff |= PR_FBM_MISMATCH_ID;
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001182 return byname;
1183 }
1184 }
1185
Joseph Herlant59dd2952018-11-15 11:46:55 -08001186 /* All remaining possibilities will lead to NULL. If we can report more
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001187 * detailed information to the caller about changed types and/or name,
1188 * we'll do it. For example, we could detect that "listen foo" was
1189 * split into "frontend foo_ft" and "backend foo_bk" if IDs are forced.
1190 * - name not set, ID not found
1191 * - name not found, ID not set
1192 * - name not found, ID not found
1193 */
1194 if (!diff)
1195 return NULL;
1196
1197 if (name) {
1198 byname = proxy_find_by_name(name, 0, 0);
1199 if (byname && (!id || byname->uuid == id))
Baptiste Assmann8a027cc2015-07-03 11:03:33 +02001200 *diff |= PR_FBM_MISMATCH_PROXYTYPE;
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001201 }
1202
1203 if (id) {
1204 byid = proxy_find_by_id(id, 0, 0);
1205 if (byid) {
1206 if (!name)
Baptiste Assmann8a027cc2015-07-03 11:03:33 +02001207 *diff |= PR_FBM_MISMATCH_PROXYTYPE; /* only type changed */
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001208 else if (byid->options & PR_O_FORCED_ID)
Baptiste Assmann8a027cc2015-07-03 11:03:33 +02001209 *diff |= PR_FBM_MISMATCH_NAME | PR_FBM_MISMATCH_PROXYTYPE; /* name and type changed */
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001210 /* otherwise it's a different proxy that was returned */
1211 }
1212 }
1213 return NULL;
1214}
1215
Willy Tarreaubaaee002006-06-26 02:48:02 +02001216/*
Krzysztof Piotr Oledzkic8b16fc2008-02-18 01:26:35 +01001217 * This function finds a server with matching name within selected proxy.
1218 * It also checks if there are more matching servers with
1219 * requested name as this often leads into unexpected situations.
1220 */
1221
1222struct server *findserver(const struct proxy *px, const char *name) {
1223
1224 struct server *cursrv, *target = NULL;
1225
1226 if (!px)
1227 return NULL;
1228
1229 for (cursrv = px->srv; cursrv; cursrv = cursrv->next) {
Tim Duesterhuse5ff1412021-01-02 22:31:53 +01001230 if (strcmp(cursrv->id, name) != 0)
Krzysztof Piotr Oledzkic8b16fc2008-02-18 01:26:35 +01001231 continue;
1232
1233 if (!target) {
1234 target = cursrv;
1235 continue;
1236 }
1237
Christopher Faulet767a84b2017-11-24 16:50:31 +01001238 ha_alert("Refusing to use duplicated server '%s' found in proxy: %s!\n",
1239 name, px->id);
Krzysztof Piotr Oledzkic8b16fc2008-02-18 01:26:35 +01001240
1241 return NULL;
1242 }
1243
1244 return target;
1245}
1246
Willy Tarreauff01a212009-03-15 13:46:16 +01001247/* This function checks that the designated proxy has no http directives
1248 * enabled. It will output a warning if there are, and will fix some of them.
1249 * It returns the number of fatal errors encountered. This should be called
1250 * at the end of the configuration parsing if the proxy is not in http mode.
1251 * The <file> argument is used to construct the error message.
1252 */
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001253int proxy_cfg_ensure_no_http(struct proxy *curproxy)
Willy Tarreauff01a212009-03-15 13:46:16 +01001254{
1255 if (curproxy->cookie_name != NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001256 ha_warning("config : cookie will be ignored for %s '%s' (needs 'mode http').\n",
1257 proxy_type_str(curproxy), curproxy->id);
Willy Tarreauff01a212009-03-15 13:46:16 +01001258 }
Willy Tarreauff01a212009-03-15 13:46:16 +01001259 if (curproxy->monitor_uri != NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001260 ha_warning("config : monitor-uri 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 Tarreauf3e49f92009-10-03 12:21:20 +02001263 if (curproxy->lbprm.algo & BE_LB_NEED_HTTP) {
Willy Tarreauff01a212009-03-15 13:46:16 +01001264 curproxy->lbprm.algo &= ~BE_LB_ALGO;
1265 curproxy->lbprm.algo |= BE_LB_ALGO_RR;
Christopher Faulet767a84b2017-11-24 16:50:31 +01001266 ha_warning("config : Layer 7 hash not possible for %s '%s' (needs 'mode http'). Falling back to round robin.\n",
1267 proxy_type_str(curproxy), curproxy->id);
Willy Tarreauff01a212009-03-15 13:46:16 +01001268 }
Willy Tarreau17804162009-11-09 21:27:51 +01001269 if (curproxy->to_log & (LW_REQ | LW_RESP)) {
1270 curproxy->to_log &= ~(LW_REQ | LW_RESP);
Christopher Faulet767a84b2017-11-24 16:50:31 +01001271 ha_warning("parsing [%s:%d] : HTTP log/header format not usable with %s '%s' (needs 'mode http').\n",
1272 curproxy->conf.lfs_file, curproxy->conf.lfs_line,
1273 proxy_type_str(curproxy), curproxy->id);
Willy Tarreau17804162009-11-09 21:27:51 +01001274 }
Willy Tarreau62a61232013-04-12 18:13:46 +02001275 if (curproxy->conf.logformat_string == default_http_log_format ||
1276 curproxy->conf.logformat_string == clf_http_log_format) {
1277 /* Note: we don't change the directive's file:line number */
1278 curproxy->conf.logformat_string = default_tcp_log_format;
Christopher Faulet767a84b2017-11-24 16:50:31 +01001279 ha_warning("parsing [%s:%d] : 'option httplog' not usable with %s '%s' (needs 'mode http'). Falling back to 'option tcplog'.\n",
1280 curproxy->conf.lfs_file, curproxy->conf.lfs_line,
1281 proxy_type_str(curproxy), curproxy->id);
Willy Tarreau196729e2012-05-31 19:30:26 +02001282 }
1283
Willy Tarreauff01a212009-03-15 13:46:16 +01001284 return 0;
1285}
1286
Willy Tarreau237250c2011-07-29 01:49:03 +02001287/* Perform the most basic initialization of a proxy :
1288 * memset(), list_init(*), reset_timeouts(*).
Willy Tarreaub249e842011-09-07 18:41:08 +02001289 * Any new proxy or peer should be initialized via this function.
Willy Tarreau237250c2011-07-29 01:49:03 +02001290 */
1291void init_new_proxy(struct proxy *p)
1292{
1293 memset(p, 0, sizeof(struct proxy));
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001294 p->obj_type = OBJ_TYPE_PROXY;
Patrick Hemmer0355dab2018-05-11 12:52:31 -04001295 p->pendconns = EB_ROOT;
Willy Tarreau237250c2011-07-29 01:49:03 +02001296 LIST_INIT(&p->acl);
1297 LIST_INIT(&p->http_req_rules);
Willy Tarreaue365c0b2013-06-11 16:06:12 +02001298 LIST_INIT(&p->http_res_rules);
Christopher Faulet6d0c3df2020-01-22 09:26:35 +01001299 LIST_INIT(&p->http_after_res_rules);
Willy Tarreau237250c2011-07-29 01:49:03 +02001300 LIST_INIT(&p->redirect_rules);
1301 LIST_INIT(&p->mon_fail_cond);
1302 LIST_INIT(&p->switching_rules);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001303 LIST_INIT(&p->server_rules);
Willy Tarreau237250c2011-07-29 01:49:03 +02001304 LIST_INIT(&p->persist_rules);
1305 LIST_INIT(&p->sticking_rules);
1306 LIST_INIT(&p->storersp_rules);
1307 LIST_INIT(&p->tcp_req.inspect_rules);
1308 LIST_INIT(&p->tcp_rep.inspect_rules);
1309 LIST_INIT(&p->tcp_req.l4_rules);
Willy Tarreau620408f2016-10-21 16:37:51 +02001310 LIST_INIT(&p->tcp_req.l5_rules);
Olivier Houchard859dc802019-08-08 15:47:21 +02001311 MT_LIST_INIT(&p->listener_queue);
William Lallemand0f99e342011-10-12 17:50:54 +02001312 LIST_INIT(&p->logsrvs);
William Lallemand723b73a2012-02-08 16:37:49 +01001313 LIST_INIT(&p->logformat);
Dragan Dosen0b85ece2015-09-25 19:17:44 +02001314 LIST_INIT(&p->logformat_sd);
William Lallemanda73203e2012-03-12 12:48:57 +01001315 LIST_INIT(&p->format_unique_id);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001316 LIST_INIT(&p->conf.bind);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001317 LIST_INIT(&p->conf.listeners);
Christopher Faulet76edc0f2020-01-13 15:52:01 +01001318 LIST_INIT(&p->conf.errors);
Willy Tarreaua4312fa2013-04-02 16:34:32 +02001319 LIST_INIT(&p->conf.args.list);
Christopher Faulet443ea1a2016-02-04 13:40:26 +01001320 LIST_INIT(&p->filter_configs);
Christopher Faulet7a1e2e12020-04-02 18:05:11 +02001321 LIST_INIT(&p->tcpcheck_rules.preset_vars);
Willy Tarreau237250c2011-07-29 01:49:03 +02001322
Willy Tarreau3b06eae2021-02-12 09:15:16 +01001323 p->defsrv.id = "default-server";
1324 p->conf.used_listener_id = EB_ROOT;
1325 p->conf.used_server_id = EB_ROOT;
1326 p->used_server_addr = EB_ROOT_UNIQUE;
1327
Willy Tarreau237250c2011-07-29 01:49:03 +02001328 /* Timeouts are defined as -1 */
1329 proxy_reset_timeouts(p);
1330 p->tcp_rep.inspect_delay = TICK_ETERNITY;
Willy Tarreau050536d2012-10-04 08:47:34 +02001331
1332 /* initial uuid is unassigned (-1) */
1333 p->uuid = -1;
Christopher Fauletff8abcd2017-06-02 15:33:24 +02001334
Olivier Houcharda254a372019-04-05 15:30:12 +02001335 /* Default to only allow L4 retries */
1336 p->retry_type = PR_RE_CONN_FAILED;
1337
Amaury Denoyelle7f8f6cb2020-11-10 14:24:31 +01001338 p->extra_counters_fe = NULL;
1339 p->extra_counters_be = NULL;
1340
Willy Tarreauac66d6b2020-10-20 17:24:27 +02001341 HA_RWLOCK_INIT(&p->lock);
Willy Tarreau237250c2011-07-29 01:49:03 +02001342}
1343
Willy Tarreau144289b2021-02-12 08:19:01 +01001344/* Preset default settings onto proxy <defproxy>. */
1345void proxy_preset_defaults(struct proxy *defproxy)
1346{
1347 defproxy->mode = PR_MODE_TCP;
1348 defproxy->disabled = 0;
Amaury Denoyelle6f26fae2021-03-24 10:49:34 +01001349 if (!(defproxy->cap & PR_CAP_LUA)) {
1350 defproxy->maxconn = cfg_maxpconn;
1351 defproxy->conn_retries = CONN_RETRIES;
1352 }
Willy Tarreau144289b2021-02-12 08:19:01 +01001353 defproxy->redispatch_after = 0;
1354 defproxy->options = PR_O_REUSE_SAFE;
Amaury Denoyelle6f26fae2021-03-24 10:49:34 +01001355 if (defproxy->cap & PR_CAP_LUA)
1356 defproxy->options2 |= PR_O2_INDEPSTR;
Willy Tarreau144289b2021-02-12 08:19:01 +01001357 defproxy->max_out_conns = MAX_SRV_LIST;
1358
1359 defproxy->defsrv.check.inter = DEF_CHKINTR;
1360 defproxy->defsrv.check.fastinter = 0;
1361 defproxy->defsrv.check.downinter = 0;
1362 defproxy->defsrv.agent.inter = DEF_CHKINTR;
1363 defproxy->defsrv.agent.fastinter = 0;
1364 defproxy->defsrv.agent.downinter = 0;
1365 defproxy->defsrv.check.rise = DEF_RISETIME;
1366 defproxy->defsrv.check.fall = DEF_FALLTIME;
1367 defproxy->defsrv.agent.rise = DEF_AGENT_RISETIME;
1368 defproxy->defsrv.agent.fall = DEF_AGENT_FALLTIME;
1369 defproxy->defsrv.check.port = 0;
1370 defproxy->defsrv.agent.port = 0;
1371 defproxy->defsrv.maxqueue = 0;
1372 defproxy->defsrv.minconn = 0;
1373 defproxy->defsrv.maxconn = 0;
1374 defproxy->defsrv.max_reuse = -1;
1375 defproxy->defsrv.max_idle_conns = -1;
1376 defproxy->defsrv.pool_purge_delay = 5000;
1377 defproxy->defsrv.slowstart = 0;
1378 defproxy->defsrv.onerror = DEF_HANA_ONERR;
1379 defproxy->defsrv.consecutive_errors_limit = DEF_HANA_ERRLIMIT;
1380 defproxy->defsrv.uweight = defproxy->defsrv.iweight = 1;
1381
1382 defproxy->email_alert.level = LOG_ALERT;
1383 defproxy->load_server_state_from_file = PR_SRV_STATE_FILE_UNSPEC;
1384#if defined(USE_QUIC)
1385 quic_transport_params_init(&defproxy->defsrv.quic_params, 0);
1386#endif
Amaury Denoyelle6f26fae2021-03-24 10:49:34 +01001387
1388 if (defproxy->cap & PR_CAP_LUA)
1389 defproxy->timeout.connect = 5000;
Willy Tarreau144289b2021-02-12 08:19:01 +01001390}
1391
Willy Tarreaua3320a02021-02-12 10:38:49 +01001392/* Frees all dynamic settings allocated on a default proxy that's about to be
1393 * destroyed. This is a subset of the complete proxy deinit code, but these
1394 * should probably be merged ultimately. Note that most of the fields are not
1395 * even reset, so extreme care is required here, and calling
1396 * proxy_preset_defaults() afterwards would be safer.
1397 */
1398void proxy_free_defaults(struct proxy *defproxy)
1399{
Willy Tarreau61cfdf42021-02-20 10:46:51 +01001400 ha_free(&defproxy->id);
1401 ha_free(&defproxy->conf.file);
1402 ha_free(&defproxy->check_command);
1403 ha_free(&defproxy->check_path);
1404 ha_free(&defproxy->cookie_name);
1405 ha_free(&defproxy->rdp_cookie_name);
1406 ha_free(&defproxy->dyncookie_key);
1407 ha_free(&defproxy->cookie_domain);
1408 ha_free(&defproxy->cookie_attrs);
1409 ha_free(&defproxy->lbprm.arg_str);
1410 ha_free(&defproxy->capture_name);
1411 ha_free(&defproxy->monitor_uri);
1412 ha_free(&defproxy->defbe.name);
1413 ha_free(&defproxy->conn_src.iface_name);
1414 ha_free(&defproxy->fwdfor_hdr_name); defproxy->fwdfor_hdr_len = 0;
1415 ha_free(&defproxy->orgto_hdr_name); defproxy->orgto_hdr_len = 0;
1416 ha_free(&defproxy->server_id_hdr_name); defproxy->server_id_hdr_len = 0;
Willy Tarreaua3320a02021-02-12 10:38:49 +01001417
1418 if (defproxy->conf.logformat_string != default_http_log_format &&
1419 defproxy->conf.logformat_string != default_tcp_log_format &&
Willy Tarreau818ec782021-02-12 10:48:53 +01001420 defproxy->conf.logformat_string != clf_http_log_format) {
Willy Tarreau61cfdf42021-02-20 10:46:51 +01001421 ha_free(&defproxy->conf.logformat_string);
Willy Tarreau818ec782021-02-12 10:48:53 +01001422 }
Willy Tarreaua3320a02021-02-12 10:38:49 +01001423
Willy Tarreau61cfdf42021-02-20 10:46:51 +01001424 if (defproxy->conf.logformat_sd_string != default_rfc5424_sd_log_format)
1425 ha_free(&defproxy->conf.logformat_sd_string);
Willy Tarreaua3320a02021-02-12 10:38:49 +01001426
Willy Tarreau61cfdf42021-02-20 10:46:51 +01001427 ha_free(&defproxy->conf.uniqueid_format_string);
1428 ha_free(&defproxy->conf.lfs_file);
1429 ha_free(&defproxy->conf.lfsd_file);
1430 ha_free(&defproxy->conf.uif_file);
Willy Tarreaua3320a02021-02-12 10:38:49 +01001431 chunk_destroy(&defproxy->log_tag);
1432
1433 free_email_alert(defproxy);
1434 proxy_release_conf_errors(defproxy);
1435 deinit_proxy_tcpcheck(defproxy);
1436
1437 /* FIXME: we cannot free uri_auth because it might already be used by
1438 * another proxy (legacy code for stats URI ...). Refcount anyone ?
1439 */
1440}
1441
Willy Tarreau0a0f6a72021-02-12 13:52:11 +01001442/* delete a defproxy from the tree if still in it, frees its content and its
1443 * storage. Nothing is done if <px> is NULL or if it doesn't have PR_CAP_DEF
1444 * set, allowing to pass it the direct result of a lookup function.
1445 */
1446void proxy_destroy_defaults(struct proxy *px)
1447{
1448 if (!px)
1449 return;
1450 if (!(px->cap & PR_CAP_DEF))
1451 return;
1452 ebpt_delete(&px->conf.by_name);
1453 proxy_free_defaults(px);
1454 free(px);
1455}
1456
Willy Tarreaue90904d2021-02-12 14:08:31 +01001457void proxy_destroy_all_defaults()
1458{
1459 struct ebpt_node *n;
1460
1461 while ((n = ebpt_first(&defproxy_by_name))) {
1462 struct proxy *px = container_of(n, struct proxy, conf.by_name);
1463 BUG_ON(!(px->cap & PR_CAP_DEF));
1464 proxy_destroy_defaults(px);
1465 }
1466}
1467
Amaury Denoyelle476b9ad2021-03-23 17:27:05 +01001468/* Allocates a new proxy <name> of type <cap>.
1469 * Returns the proxy instance on success. On error, NULL is returned.
Willy Tarreau76838932021-02-12 08:49:47 +01001470 */
Amaury Denoyelle476b9ad2021-03-23 17:27:05 +01001471struct proxy *alloc_new_proxy(const char *name, unsigned int cap, char **errmsg)
Willy Tarreau76838932021-02-12 08:49:47 +01001472{
Willy Tarreau76838932021-02-12 08:49:47 +01001473 struct proxy *curproxy;
Willy Tarreau76838932021-02-12 08:49:47 +01001474
1475 if ((curproxy = calloc(1, sizeof(*curproxy))) == NULL) {
1476 memprintf(errmsg, "proxy '%s': out of memory", name);
1477 goto fail;
1478 }
1479
1480 init_new_proxy(curproxy);
Willy Tarreau76838932021-02-12 08:49:47 +01001481 curproxy->last_change = now.tv_sec;
1482 curproxy->id = strdup(name);
1483 curproxy->cap = cap;
Amaury Denoyelle6f26fae2021-03-24 10:49:34 +01001484
1485 if (!(cap & PR_CAP_LUA))
1486 proxy_store_name(curproxy);
Willy Tarreau76838932021-02-12 08:49:47 +01001487
Amaury Denoyelle476b9ad2021-03-23 17:27:05 +01001488 done:
1489 return curproxy;
1490
1491 fail:
1492 /* Note: in case of fatal error here, we WILL make valgrind unhappy,
1493 * but its not worth trying to unroll everything here just before
1494 * quitting.
1495 */
1496 free(curproxy);
1497 return NULL;
1498}
1499
1500/* Copy the proxy settings from <defproxy> to <curproxy>.
1501 * Returns 0 on success.
1502 * Returns 1 on error. <errmsg> will be allocated with an error description.
1503 */
1504static int proxy_defproxy_cpy(struct proxy *curproxy, const struct proxy *defproxy,
1505 char **errmsg)
1506{
1507 struct logsrv *tmplogsrv;
1508 char *tmpmsg = NULL;
Willy Tarreau3b06eae2021-02-12 09:15:16 +01001509
1510 /* set default values from the specified default proxy */
Willy Tarreau76838932021-02-12 08:49:47 +01001511 memcpy(&curproxy->defsrv, &defproxy->defsrv, sizeof(curproxy->defsrv));
Willy Tarreau76838932021-02-12 08:49:47 +01001512
1513 curproxy->disabled = defproxy->disabled;
1514 curproxy->options = defproxy->options;
1515 curproxy->options2 = defproxy->options2;
1516 curproxy->no_options = defproxy->no_options;
1517 curproxy->no_options2 = defproxy->no_options2;
1518 curproxy->bind_proc = defproxy->bind_proc;
Christopher Faulet5d1def62021-02-26 09:19:15 +01001519 curproxy->except_xff_net = defproxy->except_xff_net;
1520 curproxy->except_xot_net = defproxy->except_xot_net;
Willy Tarreau76838932021-02-12 08:49:47 +01001521 curproxy->retry_type = defproxy->retry_type;
1522
1523 if (defproxy->fwdfor_hdr_len) {
1524 curproxy->fwdfor_hdr_len = defproxy->fwdfor_hdr_len;
1525 curproxy->fwdfor_hdr_name = strdup(defproxy->fwdfor_hdr_name);
1526 }
1527
1528 if (defproxy->orgto_hdr_len) {
1529 curproxy->orgto_hdr_len = defproxy->orgto_hdr_len;
1530 curproxy->orgto_hdr_name = strdup(defproxy->orgto_hdr_name);
1531 }
1532
1533 if (defproxy->server_id_hdr_len) {
1534 curproxy->server_id_hdr_len = defproxy->server_id_hdr_len;
1535 curproxy->server_id_hdr_name = strdup(defproxy->server_id_hdr_name);
1536 }
1537
1538 /* initialize error relocations */
1539 if (!proxy_dup_default_conf_errors(curproxy, defproxy, &tmpmsg)) {
1540 memprintf(errmsg, "proxy '%s' : %s", curproxy->id, tmpmsg);
Amaury Denoyelle476b9ad2021-03-23 17:27:05 +01001541 free(tmpmsg);
1542 return 1;
Willy Tarreau76838932021-02-12 08:49:47 +01001543 }
1544
1545 if (curproxy->cap & PR_CAP_FE) {
1546 curproxy->maxconn = defproxy->maxconn;
1547 curproxy->backlog = defproxy->backlog;
1548 curproxy->fe_sps_lim = defproxy->fe_sps_lim;
1549
1550 curproxy->to_log = defproxy->to_log & ~LW_COOKIE & ~LW_REQHDR & ~ LW_RSPHDR;
1551 curproxy->max_out_conns = defproxy->max_out_conns;
1552
1553 curproxy->clitcpka_cnt = defproxy->clitcpka_cnt;
1554 curproxy->clitcpka_idle = defproxy->clitcpka_idle;
1555 curproxy->clitcpka_intvl = defproxy->clitcpka_intvl;
1556 }
1557
1558 if (curproxy->cap & PR_CAP_BE) {
1559 curproxy->lbprm.algo = defproxy->lbprm.algo;
1560 curproxy->lbprm.hash_balance_factor = defproxy->lbprm.hash_balance_factor;
1561 curproxy->fullconn = defproxy->fullconn;
1562 curproxy->conn_retries = defproxy->conn_retries;
1563 curproxy->redispatch_after = defproxy->redispatch_after;
1564 curproxy->max_ka_queue = defproxy->max_ka_queue;
1565
1566 curproxy->tcpcheck_rules.flags = (defproxy->tcpcheck_rules.flags & ~TCPCHK_RULES_UNUSED_RS);
1567 curproxy->tcpcheck_rules.list = defproxy->tcpcheck_rules.list;
1568 if (!LIST_ISEMPTY(&defproxy->tcpcheck_rules.preset_vars)) {
1569 if (!dup_tcpcheck_vars(&curproxy->tcpcheck_rules.preset_vars,
1570 &defproxy->tcpcheck_rules.preset_vars)) {
Amaury Denoyelle476b9ad2021-03-23 17:27:05 +01001571 memprintf(errmsg, "proxy '%s': failed to duplicate tcpcheck preset-vars", curproxy->id);
1572 return 1;
Willy Tarreau76838932021-02-12 08:49:47 +01001573 }
1574 }
1575
1576 curproxy->ck_opts = defproxy->ck_opts;
1577 if (defproxy->cookie_name)
1578 curproxy->cookie_name = strdup(defproxy->cookie_name);
1579 curproxy->cookie_len = defproxy->cookie_len;
1580
1581 if (defproxy->dyncookie_key)
1582 curproxy->dyncookie_key = strdup(defproxy->dyncookie_key);
1583 if (defproxy->cookie_domain)
1584 curproxy->cookie_domain = strdup(defproxy->cookie_domain);
1585
1586 if (defproxy->cookie_maxidle)
1587 curproxy->cookie_maxidle = defproxy->cookie_maxidle;
1588
1589 if (defproxy->cookie_maxlife)
1590 curproxy->cookie_maxlife = defproxy->cookie_maxlife;
1591
1592 if (defproxy->rdp_cookie_name)
1593 curproxy->rdp_cookie_name = strdup(defproxy->rdp_cookie_name);
1594 curproxy->rdp_cookie_len = defproxy->rdp_cookie_len;
1595
1596 if (defproxy->cookie_attrs)
1597 curproxy->cookie_attrs = strdup(defproxy->cookie_attrs);
1598
1599 if (defproxy->lbprm.arg_str)
1600 curproxy->lbprm.arg_str = strdup(defproxy->lbprm.arg_str);
1601 curproxy->lbprm.arg_len = defproxy->lbprm.arg_len;
1602 curproxy->lbprm.arg_opt1 = defproxy->lbprm.arg_opt1;
1603 curproxy->lbprm.arg_opt2 = defproxy->lbprm.arg_opt2;
1604 curproxy->lbprm.arg_opt3 = defproxy->lbprm.arg_opt3;
1605
1606 if (defproxy->conn_src.iface_name)
1607 curproxy->conn_src.iface_name = strdup(defproxy->conn_src.iface_name);
1608 curproxy->conn_src.iface_len = defproxy->conn_src.iface_len;
1609 curproxy->conn_src.opts = defproxy->conn_src.opts;
1610#if defined(CONFIG_HAP_TRANSPARENT)
1611 curproxy->conn_src.tproxy_addr = defproxy->conn_src.tproxy_addr;
1612#endif
1613 curproxy->load_server_state_from_file = defproxy->load_server_state_from_file;
1614
1615 curproxy->srvtcpka_cnt = defproxy->srvtcpka_cnt;
1616 curproxy->srvtcpka_idle = defproxy->srvtcpka_idle;
1617 curproxy->srvtcpka_intvl = defproxy->srvtcpka_intvl;
1618 }
1619
1620 if (curproxy->cap & PR_CAP_FE) {
1621 if (defproxy->capture_name)
1622 curproxy->capture_name = strdup(defproxy->capture_name);
1623 curproxy->capture_namelen = defproxy->capture_namelen;
1624 curproxy->capture_len = defproxy->capture_len;
1625 }
1626
1627 if (curproxy->cap & PR_CAP_FE) {
1628 curproxy->timeout.client = defproxy->timeout.client;
1629 curproxy->timeout.clientfin = defproxy->timeout.clientfin;
1630 curproxy->timeout.tarpit = defproxy->timeout.tarpit;
1631 curproxy->timeout.httpreq = defproxy->timeout.httpreq;
1632 curproxy->timeout.httpka = defproxy->timeout.httpka;
1633 if (defproxy->monitor_uri)
1634 curproxy->monitor_uri = strdup(defproxy->monitor_uri);
1635 curproxy->monitor_uri_len = defproxy->monitor_uri_len;
1636 if (defproxy->defbe.name)
1637 curproxy->defbe.name = strdup(defproxy->defbe.name);
1638
1639 /* get either a pointer to the logformat string or a copy of it */
1640 curproxy->conf.logformat_string = defproxy->conf.logformat_string;
1641 if (curproxy->conf.logformat_string &&
1642 curproxy->conf.logformat_string != default_http_log_format &&
1643 curproxy->conf.logformat_string != default_tcp_log_format &&
1644 curproxy->conf.logformat_string != clf_http_log_format)
1645 curproxy->conf.logformat_string = strdup(curproxy->conf.logformat_string);
1646
1647 if (defproxy->conf.lfs_file) {
1648 curproxy->conf.lfs_file = strdup(defproxy->conf.lfs_file);
1649 curproxy->conf.lfs_line = defproxy->conf.lfs_line;
1650 }
1651
1652 /* get either a pointer to the logformat string for RFC5424 structured-data or a copy of it */
1653 curproxy->conf.logformat_sd_string = defproxy->conf.logformat_sd_string;
1654 if (curproxy->conf.logformat_sd_string &&
1655 curproxy->conf.logformat_sd_string != default_rfc5424_sd_log_format)
1656 curproxy->conf.logformat_sd_string = strdup(curproxy->conf.logformat_sd_string);
1657
1658 if (defproxy->conf.lfsd_file) {
1659 curproxy->conf.lfsd_file = strdup(defproxy->conf.lfsd_file);
1660 curproxy->conf.lfsd_line = defproxy->conf.lfsd_line;
1661 }
1662 }
1663
1664 if (curproxy->cap & PR_CAP_BE) {
1665 curproxy->timeout.connect = defproxy->timeout.connect;
1666 curproxy->timeout.server = defproxy->timeout.server;
1667 curproxy->timeout.serverfin = defproxy->timeout.serverfin;
1668 curproxy->timeout.check = defproxy->timeout.check;
1669 curproxy->timeout.queue = defproxy->timeout.queue;
1670 curproxy->timeout.tarpit = defproxy->timeout.tarpit;
1671 curproxy->timeout.httpreq = defproxy->timeout.httpreq;
1672 curproxy->timeout.httpka = defproxy->timeout.httpka;
1673 curproxy->timeout.tunnel = defproxy->timeout.tunnel;
1674 curproxy->conn_src.source_addr = defproxy->conn_src.source_addr;
1675 }
1676
1677 curproxy->mode = defproxy->mode;
1678 curproxy->uri_auth = defproxy->uri_auth; /* for stats */
1679
1680 /* copy default logsrvs to curproxy */
1681 list_for_each_entry(tmplogsrv, &defproxy->logsrvs, list) {
1682 struct logsrv *node = malloc(sizeof(*node));
1683
1684 if (!node) {
Amaury Denoyelle476b9ad2021-03-23 17:27:05 +01001685 memprintf(errmsg, "proxy '%s': out of memory", curproxy->id);
1686 return 1;
Willy Tarreau76838932021-02-12 08:49:47 +01001687 }
1688 memcpy(node, tmplogsrv, sizeof(struct logsrv));
1689 node->ref = tmplogsrv->ref;
1690 LIST_INIT(&node->list);
Willy Tarreau2b718102021-04-21 07:32:39 +02001691 LIST_APPEND(&curproxy->logsrvs, &node->list);
Willy Tarreau76838932021-02-12 08:49:47 +01001692 }
1693
1694 curproxy->conf.uniqueid_format_string = defproxy->conf.uniqueid_format_string;
1695 if (curproxy->conf.uniqueid_format_string)
1696 curproxy->conf.uniqueid_format_string = strdup(curproxy->conf.uniqueid_format_string);
1697
1698 chunk_dup(&curproxy->log_tag, &defproxy->log_tag);
1699
1700 if (defproxy->conf.uif_file) {
1701 curproxy->conf.uif_file = strdup(defproxy->conf.uif_file);
1702 curproxy->conf.uif_line = defproxy->conf.uif_line;
1703 }
1704
1705 /* copy default header unique id */
1706 if (isttest(defproxy->header_unique_id)) {
1707 const struct ist copy = istdup(defproxy->header_unique_id);
1708
1709 if (!isttest(copy)) {
Amaury Denoyelle476b9ad2021-03-23 17:27:05 +01001710 memprintf(errmsg, "proxy '%s': out of memory for unique-id-header", curproxy->id);
1711 return 1;
Willy Tarreau76838932021-02-12 08:49:47 +01001712 }
1713 curproxy->header_unique_id = copy;
1714 }
1715
1716 /* default compression options */
1717 if (defproxy->comp != NULL) {
1718 curproxy->comp = calloc(1, sizeof(*curproxy->comp));
Remi Tricot-Le Breton4d8e20f2021-05-12 18:07:27 +02001719 if (!curproxy->comp) {
1720 memprintf(errmsg, "proxy '%s': out of memory for default compression options", curproxy->id);
1721 return 1;
1722 }
Willy Tarreau76838932021-02-12 08:49:47 +01001723 curproxy->comp->algos = defproxy->comp->algos;
1724 curproxy->comp->types = defproxy->comp->types;
1725 }
1726
1727 curproxy->grace = defproxy->grace;
Willy Tarreau76838932021-02-12 08:49:47 +01001728
1729 if (defproxy->check_path)
1730 curproxy->check_path = strdup(defproxy->check_path);
1731 if (defproxy->check_command)
1732 curproxy->check_command = strdup(defproxy->check_command);
1733
1734 if (defproxy->email_alert.mailers.name)
1735 curproxy->email_alert.mailers.name = strdup(defproxy->email_alert.mailers.name);
1736 if (defproxy->email_alert.from)
1737 curproxy->email_alert.from = strdup(defproxy->email_alert.from);
1738 if (defproxy->email_alert.to)
1739 curproxy->email_alert.to = strdup(defproxy->email_alert.to);
1740 if (defproxy->email_alert.myhostname)
1741 curproxy->email_alert.myhostname = strdup(defproxy->email_alert.myhostname);
1742 curproxy->email_alert.level = defproxy->email_alert.level;
1743 curproxy->email_alert.set = defproxy->email_alert.set;
Willy Tarreau3b06eae2021-02-12 09:15:16 +01001744
Amaury Denoyelle476b9ad2021-03-23 17:27:05 +01001745 return 0;
1746}
1747
1748/* Allocates a new proxy <name> of type <cap> found at position <file:linenum>,
1749 * preset it from the defaults of <defproxy> and returns it. In case of error,
1750 * an alert is printed and NULL is returned.
1751 */
1752struct proxy *parse_new_proxy(const char *name, unsigned int cap,
1753 const char *file, int linenum,
1754 const struct proxy *defproxy)
1755{
1756 struct proxy *curproxy = NULL;
1757 char *errmsg;
1758
1759 if (!(curproxy = alloc_new_proxy(name, cap, &errmsg))) {
1760 ha_alert("parsing [%s:%d] : %s\n", file, linenum, errmsg);
1761 free(errmsg);
1762 return NULL;
1763 }
1764
1765 if (defproxy) {
1766 if (proxy_defproxy_cpy(curproxy, defproxy, &errmsg)) {
1767 ha_alert("parsing [%s:%d] : %s\n", file, linenum, errmsg);
1768 free(errmsg);
1769
1770 ha_free(&curproxy);
1771 return NULL;
1772 }
1773 }
1774 else {
1775 proxy_preset_defaults(curproxy);
1776 }
1777
1778 curproxy->conf.args.file = curproxy->conf.file = strdup(file);
1779 curproxy->conf.args.line = curproxy->conf.line = linenum;
1780
Willy Tarreau76838932021-02-12 08:49:47 +01001781 return curproxy;
Willy Tarreau76838932021-02-12 08:49:47 +01001782}
1783
Willy Tarreauacde1522020-10-07 16:31:39 +02001784/* to be called under the proxy lock after stopping some listeners. This will
1785 * automatically update the p->disabled flag after stopping the last one, and
1786 * will emit a log indicating the proxy's condition. The function is idempotent
1787 * so that it will not emit multiple logs; a proxy will be disabled only once.
1788 */
1789void proxy_cond_disable(struct proxy *p)
1790{
1791 if (p->disabled)
1792 return;
1793
1794 if (p->li_ready + p->li_paused > 0)
1795 return;
1796
1797 p->disabled = 1;
1798
1799 if (!(proc_mask(p->bind_proc) & pid_bit))
1800 goto silent;
1801
1802 /* Note: syslog proxies use their own loggers so while it's somewhat OK
1803 * to report them being stopped as a warning, we must not spam their log
1804 * servers which are in fact production servers. For other types (CLI,
1805 * peers, etc) we must not report them at all as they're not really on
1806 * the data plane but on the control plane.
1807 */
1808 if (p->mode == PR_MODE_TCP || p->mode == PR_MODE_HTTP || p->mode == PR_MODE_SYSLOG)
1809 ha_warning("Proxy %s stopped (cumulated conns: FE: %lld, BE: %lld).\n",
1810 p->id, p->fe_counters.cum_conn, p->be_counters.cum_conn);
1811
1812 if (p->mode == PR_MODE_TCP || p->mode == PR_MODE_HTTP)
1813 send_log(p, LOG_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 silent:
1817 if (p->table && p->table->size && p->table->sync_task)
1818 task_wakeup(p->table->sync_task, TASK_WOKEN_MSG);
1819
1820 if (p->task)
1821 task_wakeup(p->task, TASK_WOKEN_MSG);
1822}
1823
Krzysztof Piotr Oledzkic8b16fc2008-02-18 01:26:35 +01001824/*
Willy Tarreau918ff602011-07-25 16:33:49 +02001825 * This is the proxy management task. It enables proxies when there are enough
Willy Tarreau87b09662015-04-03 00:22:06 +02001826 * free streams, or stops them when the table is full. It is designed to be
Willy Tarreau918ff602011-07-25 16:33:49 +02001827 * called as a task which is woken up upon stopping or when rate limiting must
1828 * be enforced.
Willy Tarreaubaaee002006-06-26 02:48:02 +02001829 */
Willy Tarreau144f84a2021-03-02 16:09:26 +01001830struct task *manage_proxy(struct task *t, void *context, unsigned int state)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001831{
Olivier Houchard9f6af332018-05-25 14:04:04 +02001832 struct proxy *p = context;
Willy Tarreau918ff602011-07-25 16:33:49 +02001833 int next = TICK_ETERNITY;
Willy Tarreau79584222009-03-06 09:18:27 +01001834 unsigned int wait;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001835
Willy Tarreau918ff602011-07-25 16:33:49 +02001836 /* We should periodically try to enable listeners waiting for a
1837 * global resource here.
1838 */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001839
Willy Tarreau918ff602011-07-25 16:33:49 +02001840 /* first, let's check if we need to stop the proxy */
Willy Tarreauc3914d42020-09-24 08:39:22 +02001841 if (unlikely(stopping && !p->disabled)) {
Willy Tarreau918ff602011-07-25 16:33:49 +02001842 int t;
1843 t = tick_remain(now_ms, p->stop_time);
1844 if (t == 0) {
Willy Tarreau918ff602011-07-25 16:33:49 +02001845 stop_proxy(p);
1846 /* try to free more memory */
Willy Tarreaubafbe012017-11-24 17:34:44 +01001847 pool_gc(NULL);
Willy Tarreau918ff602011-07-25 16:33:49 +02001848 }
1849 else {
1850 next = tick_first(next, p->stop_time);
1851 }
1852 }
Willy Tarreauf3f8c702011-07-25 07:37:28 +02001853
Willy Tarreau3a925c12013-09-04 17:54:01 +02001854 /* If the proxy holds a stick table, we need to purge all unused
1855 * entries. These are all the ones in the table with ref_cnt == 0
1856 * and all the ones in the pool used to allocate new entries. Any
Willy Tarreau87b09662015-04-03 00:22:06 +02001857 * entry attached to an existing stream waiting for a store will
Willy Tarreau3a925c12013-09-04 17:54:01 +02001858 * be in neither list. Any entry being dumped will have ref_cnt > 0.
1859 * However we protect tables that are being synced to peers.
1860 */
Willy Tarreauc3914d42020-09-24 08:39:22 +02001861 if (unlikely(stopping && p->disabled && p->table && p->table->current)) {
Emeric Brun2cc201f2021-04-23 12:21:26 +02001862
1863 if (!p->table->refcnt) {
1864 /* !table->refcnt means there
1865 * is no more pending full resync
1866 * to push to a new process and
1867 * we are free to flush the table.
1868 */
Frédéric Lécaille1b8e68e2019-03-14 07:07:41 +01001869 stktable_trash_oldest(p->table, p->table->current);
Willy Tarreaubafbe012017-11-24 17:34:44 +01001870 pool_gc(NULL);
Willy Tarreau3a925c12013-09-04 17:54:01 +02001871 }
Frédéric Lécaille1b8e68e2019-03-14 07:07:41 +01001872 if (p->table->current) {
Willy Tarreau3a925c12013-09-04 17:54:01 +02001873 /* some entries still remain, let's recheck in one second */
1874 next = tick_first(next, tick_add(now_ms, 1000));
1875 }
1876 }
1877
Willy Tarreau918ff602011-07-25 16:33:49 +02001878 /* the rest below is just for frontends */
1879 if (!(p->cap & PR_CAP_FE))
1880 goto out;
Willy Tarreauf3f8c702011-07-25 07:37:28 +02001881
Willy Tarreau918ff602011-07-25 16:33:49 +02001882 /* check the various reasons we may find to block the frontend */
Willy Tarreau6b3bf732020-09-24 07:35:46 +02001883 if (unlikely(p->feconn >= p->maxconn))
Willy Tarreau918ff602011-07-25 16:33:49 +02001884 goto out;
Willy Tarreau3a7d2072009-03-05 23:48:25 +01001885
Willy Tarreau918ff602011-07-25 16:33:49 +02001886 if (p->fe_sps_lim &&
1887 (wait = next_event_delay(&p->fe_sess_per_sec, p->fe_sps_lim, 0))) {
1888 /* we're blocking because a limit was reached on the number of
1889 * requests/s on the frontend. We want to re-check ASAP, which
1890 * means in 1 ms before estimated expiration date, because the
1891 * timer will have settled down.
1892 */
1893 next = tick_first(next, tick_add(now_ms, wait));
1894 goto out;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001895 }
Willy Tarreau918ff602011-07-25 16:33:49 +02001896
1897 /* The proxy is not limited so we can re-enable any waiting listener */
Willy Tarreau241797a2019-12-10 14:10:52 +01001898 dequeue_proxy_listeners(p);
Willy Tarreau918ff602011-07-25 16:33:49 +02001899 out:
1900 t->expire = next;
1901 task_queue(t);
1902 return t;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001903}
1904
1905
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001906static int proxy_parse_hard_stop_after(char **args, int section_type, struct proxy *curpx,
Willy Tarreau01825162021-03-09 09:53:46 +01001907 const struct proxy *defpx, const char *file, int line,
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001908 char **err)
1909{
1910 const char *res;
1911
1912 if (!*args[1]) {
1913 memprintf(err, "'%s' expects <time> as argument.\n", args[0]);
1914 return -1;
1915 }
1916 res = parse_time_err(args[1], &global.hard_stop_after, TIME_UNIT_MS);
Willy Tarreau9faebe32019-06-07 19:00:37 +02001917 if (res == PARSE_TIME_OVER) {
1918 memprintf(err, "timer overflow in argument '%s' to '%s' (maximum value is 2147483647 ms or ~24.8 days)",
1919 args[1], args[0]);
1920 return -1;
1921 }
1922 else if (res == PARSE_TIME_UNDER) {
1923 memprintf(err, "timer underflow in argument '%s' to '%s' (minimum non-null value is 1 ms)",
1924 args[1], args[0]);
1925 return -1;
1926 }
1927 else if (res) {
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001928 memprintf(err, "unexpected character '%c' in argument to <%s>.\n", *res, args[0]);
1929 return -1;
1930 }
1931 return 0;
1932}
1933
Willy Tarreau144f84a2021-03-02 16:09:26 +01001934struct task *hard_stop(struct task *t, void *context, unsigned int state)
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001935{
1936 struct proxy *p;
1937 struct stream *s;
Willy Tarreau0d038252021-02-24 11:13:59 +01001938 int thr;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001939
1940 if (killed) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001941 ha_warning("Some tasks resisted to hard-stop, exiting now.\n");
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001942 send_log(NULL, LOG_WARNING, "Some tasks resisted to hard-stop, exiting now.\n");
Willy Tarreau7067b3a2019-06-02 11:11:29 +02001943 killed = 2;
Willy Tarreau0d038252021-02-24 11:13:59 +01001944 for (thr = 0; thr < global.nbthread; thr++)
1945 if (((all_threads_mask & ~tid_bit) >> thr) & 1)
1946 wake_thread(thr);
Willy Tarreau7067b3a2019-06-02 11:11:29 +02001947 t->expire = TICK_ETERNITY;
1948 return t;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001949 }
1950
Christopher Faulet767a84b2017-11-24 16:50:31 +01001951 ha_warning("soft-stop running for too long, performing a hard-stop.\n");
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001952 send_log(NULL, LOG_WARNING, "soft-stop running for too long, performing a hard-stop.\n");
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001953 p = proxies_list;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001954 while (p) {
1955 if ((p->cap & PR_CAP_FE) && (p->feconn > 0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001956 ha_warning("Proxy %s hard-stopped (%d remaining conns will be closed).\n",
1957 p->id, p->feconn);
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001958 send_log(p, LOG_WARNING, "Proxy %s hard-stopped (%d remaining conns will be closed).\n",
1959 p->id, p->feconn);
1960 }
1961 p = p->next;
1962 }
Willy Tarreau92b887e2021-02-24 11:08:56 +01001963
1964 thread_isolate();
Willy Tarreaua698eb62021-02-24 10:37:01 +01001965
1966 for (thr = 0; thr < global.nbthread; thr++) {
1967 list_for_each_entry(s, &ha_thread_info[thr].streams, list) {
1968 stream_shutdown(s, SF_ERR_KILLED);
1969 }
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001970 }
Willy Tarreaua698eb62021-02-24 10:37:01 +01001971
Willy Tarreau92b887e2021-02-24 11:08:56 +01001972 thread_release();
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001973
1974 killed = 1;
1975 t->expire = tick_add(now_ms, MS_TO_TICKS(1000));
1976 return t;
1977}
1978
Willy Tarreaubaaee002006-06-26 02:48:02 +02001979/*
1980 * this function disables health-check servers so that the process will quickly be ignored
1981 * by load balancers. Note that if a proxy was already in the PAUSED state, then its grace
1982 * time will not be used since it would already not listen anymore to the socket.
1983 */
1984void soft_stop(void)
1985{
1986 struct proxy *p;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001987 struct task *task;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001988
1989 stopping = 1;
William Dauchy3894d972019-12-28 15:36:02 +01001990 /* disable busy polling to avoid cpu eating for the new process */
1991 global.tune.options &= ~GTUNE_BUSY_POLLING;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001992 if (tick_isset(global.hard_stop_after)) {
Emeric Brunc60def82017-09-27 14:59:38 +02001993 task = task_new(MAX_THREADS_MASK);
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001994 if (task) {
1995 task->process = hard_stop;
1996 task_schedule(task, tick_add(now_ms, global.hard_stop_after));
1997 }
1998 else {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001999 ha_alert("out of memory trying to allocate the hard-stop task.\n");
Cyril Bonté203ec5a2017-03-23 22:44:13 +01002000 }
2001 }
Willy Tarreau626f3a72020-10-07 16:52:43 +02002002
2003 /* stop all stoppable listeners, resulting in disabling all proxies
2004 * that don't use a grace period.
2005 */
2006 protocol_stop_now();
2007
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002008 p = proxies_list;
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02002009 tv_update_date(0,1); /* else, the old time before select will be used */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002010 while (p) {
Willy Tarreauc3914d42020-09-24 08:39:22 +02002011 if (!p->disabled) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002012 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 +02002013 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 +02002014 p->stop_time = tick_add(now_ms, p->grace);
Emeric Brun5a8c0a92010-09-23 18:44:36 +02002015
Willy Tarreau20b7afb2015-09-28 16:35:04 +02002016 /* Note: do not wake up stopped proxies' task nor their tables'
2017 * tasks as these ones might point to already released entries.
2018 */
Frédéric Lécaille1b8e68e2019-03-14 07:07:41 +01002019 if (p->table && p->table->size && p->table->sync_task)
2020 task_wakeup(p->table->sync_task, TASK_WOKEN_MSG);
Willy Tarreau20b7afb2015-09-28 16:35:04 +02002021
2022 if (p->task)
2023 task_wakeup(p->task, TASK_WOKEN_MSG);
2024 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002025 p = p->next;
2026 }
Willy Tarreaubbe11b12011-07-25 11:16:24 +02002027
Willy Tarreaud0807c32010-08-27 18:26:11 +02002028 /* signal zero is used to broadcast the "stopping" event */
2029 signal_handler(0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002030}
2031
2032
Willy Tarreaube58c382011-07-24 18:28:10 +02002033/* Temporarily disables listening on all of the proxy's listeners. Upon
Willy Tarreaua17c91b2020-09-24 07:44:34 +02002034 * success, the proxy enters the PR_PAUSED state. The function returns 0
Willy Tarreauce8fe252011-09-07 19:14:57 +02002035 * if it fails, or non-zero on success.
Willy Tarreaubaaee002006-06-26 02:48:02 +02002036 */
Willy Tarreauce8fe252011-09-07 19:14:57 +02002037int pause_proxy(struct proxy *p)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002038{
2039 struct listener *l;
Willy Tarreauce8fe252011-09-07 19:14:57 +02002040
Willy Tarreauc3914d42020-09-24 08:39:22 +02002041 if (!(p->cap & PR_CAP_FE) || p->disabled || !p->li_ready)
Willy Tarreauce8fe252011-09-07 19:14:57 +02002042 return 1;
2043
Willy Tarreaua17c91b2020-09-24 07:44:34 +02002044 list_for_each_entry(l, &p->conf.listeners, by_fe)
2045 pause_listener(l);
Willy Tarreauce8fe252011-09-07 19:14:57 +02002046
Willy Tarreaua17c91b2020-09-24 07:44:34 +02002047 if (p->li_ready) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002048 ha_warning("%s %s failed to enter pause mode.\n", proxy_cap_str(p->cap), p->id);
Willy Tarreauce8fe252011-09-07 19:14:57 +02002049 send_log(p, LOG_WARNING, "%s %s failed to enter pause mode.\n", proxy_cap_str(p->cap), p->id);
2050 return 0;
2051 }
Willy Tarreauce8fe252011-09-07 19:14:57 +02002052 return 1;
Willy Tarreauda250db2008-10-12 12:07:48 +02002053}
2054
Willy Tarreauda250db2008-10-12 12:07:48 +02002055/*
2056 * This function completely stops a proxy and releases its listeners. It has
2057 * to be called when going down in order to release the ports so that another
2058 * process may bind to them. It must also be called on disabled proxies at the
William Lallemandc59f9882018-11-16 16:57:21 +01002059 * end of start-up. If all listeners are closed, the proxy is set to the
Willy Tarreau3de3cd42019-07-24 17:42:44 +02002060 * PR_STSTOPPED state. The function takes the proxy's lock so it's safe to
2061 * call from multiple places.
Willy Tarreauda250db2008-10-12 12:07:48 +02002062 */
2063void stop_proxy(struct proxy *p)
2064{
2065 struct listener *l;
2066
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002067 HA_RWLOCK_WRLOCK(PROXY_LOCK, &p->lock);
Willy Tarreau3de3cd42019-07-24 17:42:44 +02002068
Willy Tarreau322b9b92020-10-07 16:20:34 +02002069 list_for_each_entry(l, &p->conf.listeners, by_fe)
2070 stop_listener(l, 1, 0, 0);
Willy Tarreau3de3cd42019-07-24 17:42:44 +02002071
Willy Tarreauba296872020-10-16 15:10:11 +02002072 if (!p->disabled && !p->li_ready) {
2073 /* might be just a backend */
2074 p->disabled = 1;
2075 }
2076
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002077 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &p->lock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002078}
2079
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02002080/* This function resumes listening on the specified proxy. It scans all of its
2081 * listeners and tries to enable them all. If any of them fails, the proxy is
2082 * put back to the paused state. It returns 1 upon success, or zero if an error
2083 * is encountered.
2084 */
2085int resume_proxy(struct proxy *p)
2086{
2087 struct listener *l;
2088 int fail;
2089
Willy Tarreauc3914d42020-09-24 08:39:22 +02002090 if (p->disabled || !p->li_paused)
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02002091 return 1;
2092
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02002093 fail = 0;
Willy Tarreau4348fad2012-09-20 16:48:07 +02002094 list_for_each_entry(l, &p->conf.listeners, by_fe) {
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02002095 if (!resume_listener(l)) {
2096 int port;
2097
Willy Tarreau37159062020-08-27 07:48:42 +02002098 port = get_host_port(&l->rx.addr);
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02002099 if (port) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002100 ha_warning("Port %d busy while trying to enable %s %s.\n",
2101 port, proxy_cap_str(p->cap), p->id);
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02002102 send_log(p, LOG_WARNING, "Port %d busy while trying to enable %s %s.\n",
2103 port, proxy_cap_str(p->cap), p->id);
2104 }
2105 else {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002106 ha_warning("Bind on socket %d busy while trying to enable %s %s.\n",
2107 l->luid, proxy_cap_str(p->cap), p->id);
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02002108 send_log(p, LOG_WARNING, "Bind on socket %d busy while trying to enable %s %s.\n",
2109 l->luid, proxy_cap_str(p->cap), p->id);
2110 }
2111
2112 /* Another port might have been enabled. Let's stop everything. */
2113 fail = 1;
2114 break;
2115 }
2116 }
2117
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02002118 if (fail) {
2119 pause_proxy(p);
2120 return 0;
2121 }
2122 return 1;
2123}
2124
Willy Tarreau87b09662015-04-03 00:22:06 +02002125/* Set current stream's backend to <be>. Nothing is done if the
2126 * stream already had a backend assigned, which is indicated by
Willy Tarreaue7dff022015-04-03 01:14:29 +02002127 * s->flags & SF_BE_ASSIGNED.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02002128 * All flags, stats and counters which need be updated are updated.
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02002129 * Returns 1 if done, 0 in case of internal error, eg: lack of resource.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02002130 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002131int stream_set_backend(struct stream *s, struct proxy *be)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02002132{
Christopher Faulet6c1fd982021-03-15 10:42:02 +01002133 unsigned int req_ana;
2134
Willy Tarreaue7dff022015-04-03 01:14:29 +02002135 if (s->flags & SF_BE_ASSIGNED)
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02002136 return 1;
Christopher Faulet41179042016-06-21 11:54:52 +02002137
2138 if (flt_set_stream_backend(s, be) < 0)
2139 return 0;
2140
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02002141 s->be = be;
Christopher Fauletff8abcd2017-06-02 15:33:24 +02002142 HA_ATOMIC_UPDATE_MAX(&be->be_counters.conn_max,
Willy Tarreau1db42732021-04-06 11:44:07 +02002143 HA_ATOMIC_ADD_FETCH(&be->beconn, 1));
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02002144 proxy_inc_be_ctr(be);
2145
Willy Tarreau87b09662015-04-03 00:22:06 +02002146 /* assign new parameters to the stream from the new backend */
Willy Tarreauf27b5ea2009-10-03 22:01:18 +02002147 s->si[1].flags &= ~SI_FL_INDEP_STR;
2148 if (be->options2 & PR_O2_INDEPSTR)
2149 s->si[1].flags |= SI_FL_INDEP_STR;
2150
Hongbo Longe39683c2017-03-10 18:41:51 +01002151 if (tick_isset(be->timeout.serverfin))
2152 s->si[1].hcto = be->timeout.serverfin;
2153
Willy Tarreau9fbe18e2015-05-01 22:42:08 +02002154 /* We want to enable the backend-specific analysers except those which
2155 * were already run as part of the frontend/listener. Note that it would
2156 * be more reliable to store the list of analysers that have been run,
2157 * but what we do here is OK for now.
2158 */
Christopher Faulet6c1fd982021-03-15 10:42:02 +01002159 req_ana = be->be_req_ana;
2160 if (!(strm_fe(s)->options & PR_O_WREQ_BODY) && be->options & PR_O_WREQ_BODY) {
2161 /* The backend request to parse a request body while it was not
2162 * performed on the frontend, so add the corresponding analyser
2163 */
2164 req_ana |= AN_REQ_HTTP_BODY;
2165 }
2166 if (IS_HTX_STRM(s) && strm_fe(s)->mode != PR_MODE_HTTP) {
2167 /* The stream was already upgraded to HTTP, so remove analysers
2168 * set during the upgrade
2169 */
2170 req_ana &= ~(AN_REQ_WAIT_HTTP|AN_REQ_HTTP_PROCESS_FE);
2171 }
2172 s->req.analysers |= req_ana & ~(strm_li(s) ? strm_li(s)->analysers : 0);
Willy Tarreau9fbe18e2015-05-01 22:42:08 +02002173
Christopher Faulet6c1fd982021-03-15 10:42:02 +01002174 if (!IS_HTX_STRM(s) && be->mode == PR_MODE_HTTP) {
Christopher Fauletbbe68542019-04-08 10:53:51 +02002175 /* If we chain a TCP frontend to an HTX backend, we must upgrade
2176 * the client mux */
Christopher Fauletae863c62021-03-15 12:03:44 +01002177 if (!stream_set_http_mode(s, NULL))
Christopher Fauleteec7f8a2019-12-20 15:59:20 +01002178 return 0;
Christopher Faulet6c1fd982021-03-15 10:42:02 +01002179 }
2180 else if (IS_HTX_STRM(s) && be->mode != PR_MODE_HTTP) {
2181 /* If a TCP backend is assgiend to an HTX stream, return an
2182 * error. It may happens for a new stream on a previously
2183 * upgraded connections. */
2184 if (!(s->flags & SF_ERR_MASK))
2185 s->flags |= SF_ERR_INTERNAL;
2186 return 0;
2187 }
2188 else {
2189 /* If the target backend requires HTTP processing, we have to allocate
2190 * the HTTP transaction if we did not have one.
2191 */
2192 if (unlikely(!s->txn && be->http_needed && !http_create_txn(s)))
2193 return 0;
Willy Tarreaueee5b512015-04-03 23:46:31 +02002194 }
2195
2196 s->flags |= SF_BE_ASSIGNED;
Willy Tarreau96e31212011-05-30 18:10:30 +02002197 if (be->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01002198 s->req.flags |= CF_NEVER_WAIT;
2199 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +02002200 }
2201
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02002202 return 1;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02002203}
2204
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002205/* Capture a bad request or response and archive it in the proxy's structure.
2206 * It is relatively protocol-agnostic so it requires that a number of elements
2207 * are passed :
2208 * - <proxy> is the proxy where the error was detected and where the snapshot
2209 * needs to be stored
Joseph Herlant59dd2952018-11-15 11:46:55 -08002210 * - <is_back> indicates that the error happened when receiving the response
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002211 * - <other_end> is a pointer to the proxy on the other side when known
2212 * - <target> is the target of the connection, usually a server or a proxy
2213 * - <sess> is the session which experienced the error
2214 * - <ctx> may be NULL or should contain any info relevant to the protocol
2215 * - <buf> is the buffer containing the offending data
2216 * - <buf_ofs> is the position of this buffer's input data in the input
2217 * stream, starting at zero. It may be passed as zero if unknown.
2218 * - <buf_out> is the portion of <buf->data> which was already forwarded and
2219 * which precedes the buffer's input. The buffer's input starts at
2220 * buf->head + buf_out.
2221 * - <err_pos> is the pointer to the faulty byte in the buffer's input.
2222 * - <show> is the callback to use to display <ctx>. It may be NULL.
2223 */
2224void proxy_capture_error(struct proxy *proxy, int is_back,
2225 struct proxy *other_end, enum obj_type *target,
2226 const struct session *sess,
2227 const struct buffer *buf, long buf_ofs,
2228 unsigned int buf_out, unsigned int err_pos,
2229 const union error_snapshot_ctx *ctx,
2230 void (*show)(struct buffer *, const struct error_snapshot *))
2231{
2232 struct error_snapshot *es;
2233 unsigned int buf_len;
2234 int len1, len2;
Willy Tarreauc55015e2018-09-07 19:02:32 +02002235 unsigned int ev_id;
2236
Willy Tarreau18515722021-04-06 11:57:41 +02002237 ev_id = HA_ATOMIC_FETCH_ADD(&error_snapshot_id, 1);
Willy Tarreauc55015e2018-09-07 19:02:32 +02002238
Willy Tarreau4bc7d902018-09-07 20:07:17 +02002239 buf_len = b_data(buf) - buf_out;
2240
2241 es = malloc(sizeof(*es) + buf_len);
Willy Tarreauc55015e2018-09-07 19:02:32 +02002242 if (!es)
2243 return;
2244
Willy Tarreau4bc7d902018-09-07 20:07:17 +02002245 es->buf_len = buf_len;
2246 es->ev_id = ev_id;
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002247
Christopher Faulet47a72102020-01-06 11:37:00 +01002248 len1 = b_size(buf) - b_peek_ofs(buf, buf_out);
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002249 if (len1 > buf_len)
2250 len1 = buf_len;
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002251
Willy Tarreau4bc7d902018-09-07 20:07:17 +02002252 if (len1) {
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002253 memcpy(es->buf, b_peek(buf, buf_out), len1);
Willy Tarreau4bc7d902018-09-07 20:07:17 +02002254 len2 = buf_len - len1;
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002255 if (len2)
2256 memcpy(es->buf + len1, b_orig(buf), len2);
2257 }
2258
2259 es->buf_err = err_pos;
2260 es->when = date; // user-visible date
2261 es->srv = objt_server(target);
2262 es->oe = other_end;
Olivier Houchardbdb00c52020-03-12 15:30:17 +01002263 if (sess && objt_conn(sess->origin) && conn_get_src(__objt_conn(sess->origin)))
Willy Tarreau026efc72019-07-17 15:20:02 +02002264 es->src = *__objt_conn(sess->origin)->src;
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002265 else
2266 memset(&es->src, 0, sizeof(es->src));
2267
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002268 es->buf_wrap = b_wrap(buf) - b_peek(buf, buf_out);
2269 es->buf_out = buf_out;
2270 es->buf_ofs = buf_ofs;
2271
2272 /* be sure to indicate the offset of the first IN byte */
2273 if (es->buf_ofs >= es->buf_len)
2274 es->buf_ofs -= es->buf_len;
2275 else
2276 es->buf_ofs = 0;
2277
2278 /* protocol-specific part now */
2279 if (ctx)
2280 es->ctx = *ctx;
2281 else
2282 memset(&es->ctx, 0, sizeof(es->ctx));
2283 es->show = show;
Willy Tarreauc55015e2018-09-07 19:02:32 +02002284
2285 /* note: we still lock since we have to be certain that nobody is
2286 * dumping the output while we free.
2287 */
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002288 HA_RWLOCK_WRLOCK(PROXY_LOCK, &proxy->lock);
Willy Tarreauc55015e2018-09-07 19:02:32 +02002289 if (is_back) {
2290 es = HA_ATOMIC_XCHG(&proxy->invalid_rep, es);
2291 } else {
2292 es = HA_ATOMIC_XCHG(&proxy->invalid_req, es);
2293 }
2294 free(es);
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002295 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &proxy->lock);
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002296}
2297
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002298/* Configure all proxies which lack a maxconn setting to use the global one by
2299 * default. This avoids the common mistake consisting in setting maxconn only
2300 * in the global section and discovering the hard way that it doesn't propagate
2301 * through the frontends. These values are also propagated through the various
Ilya Shipitsin47d17182020-06-21 21:42:57 +05002302 * targeted backends, whose fullconn is finally calculated if not yet set.
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002303 */
2304void proxy_adjust_all_maxconn()
2305{
2306 struct proxy *curproxy;
2307 struct switching_rule *swrule1, *swrule2;
2308
2309 for (curproxy = proxies_list; curproxy; curproxy = curproxy->next) {
Willy Tarreauc3914d42020-09-24 08:39:22 +02002310 if (curproxy->disabled)
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002311 continue;
2312
2313 if (!(curproxy->cap & PR_CAP_FE))
2314 continue;
2315
2316 if (!curproxy->maxconn)
2317 curproxy->maxconn = global.maxconn;
2318
2319 /* update the target backend's fullconn count : default_backend */
2320 if (curproxy->defbe.be)
2321 curproxy->defbe.be->tot_fe_maxconn += curproxy->maxconn;
2322 else if ((curproxy->cap & PR_CAP_LISTEN) == PR_CAP_LISTEN)
2323 curproxy->tot_fe_maxconn += curproxy->maxconn;
2324
2325 list_for_each_entry(swrule1, &curproxy->switching_rules, list) {
2326 /* For each target of switching rules, we update their
2327 * tot_fe_maxconn, except if a previous rule points to
2328 * the same backend or to the default backend.
2329 */
2330 if (swrule1->be.backend != curproxy->defbe.be) {
Frédéric Lécaille2365fb02019-03-07 15:02:52 +01002331 /* note: swrule1->be.backend isn't a backend if the rule
2332 * is dynamic, it's an expression instead, so it must not
2333 * be dereferenced as a backend before being certain it is.
2334 */
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002335 list_for_each_entry(swrule2, &curproxy->switching_rules, list) {
2336 if (swrule2 == swrule1) {
Frédéric Lécaille2365fb02019-03-07 15:02:52 +01002337 if (!swrule1->dynamic)
2338 swrule1->be.backend->tot_fe_maxconn += curproxy->maxconn;
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002339 break;
2340 }
2341 else if (!swrule2->dynamic && swrule2->be.backend == swrule1->be.backend) {
2342 /* there are multiple refs of this backend */
2343 break;
2344 }
2345 }
2346 }
2347 }
2348 }
2349
2350 /* automatically compute fullconn if not set. We must not do it in the
2351 * loop above because cross-references are not yet fully resolved.
2352 */
2353 for (curproxy = proxies_list; curproxy; curproxy = curproxy->next) {
Willy Tarreauc3914d42020-09-24 08:39:22 +02002354 if (curproxy->disabled)
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002355 continue;
2356
2357 /* If <fullconn> is not set, let's set it to 10% of the sum of
2358 * the possible incoming frontend's maxconns.
2359 */
2360 if (!curproxy->fullconn && (curproxy->cap & PR_CAP_BE)) {
2361 /* we have the sum of the maxconns in <total>. We only
2362 * keep 10% of that sum to set the default fullconn, with
2363 * a hard minimum of 1 (to avoid a divide by zero).
2364 */
2365 curproxy->fullconn = (curproxy->tot_fe_maxconn + 9) / 10;
2366 if (!curproxy->fullconn)
2367 curproxy->fullconn = 1;
2368 }
2369 }
2370}
2371
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002372/* Config keywords below */
2373
Willy Tarreaudc13c112013-06-21 23:16:39 +02002374static struct cfg_kw_list cfg_kws = {ILH, {
Cyril Bonté203ec5a2017-03-23 22:44:13 +01002375 { CFG_GLOBAL, "hard-stop-after", proxy_parse_hard_stop_after },
Willy Tarreau9de1bbd2008-07-09 20:34:27 +02002376 { CFG_LISTEN, "timeout", proxy_parse_timeout },
Tim Duesterhus86e6b6e2019-05-14 20:57:59 +02002377 { CFG_LISTEN, "clitimeout", proxy_parse_timeout }, /* This keyword actually fails to parse, this line remains for better error messages. */
2378 { CFG_LISTEN, "contimeout", proxy_parse_timeout }, /* This keyword actually fails to parse, this line remains for better error messages. */
2379 { 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 +01002380 { CFG_LISTEN, "rate-limit", proxy_parse_rate_limit },
Willy Tarreauc35362a2014-04-25 13:58:37 +02002381 { CFG_LISTEN, "max-keep-alive-queue", proxy_parse_max_ka_queue },
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +02002382 { CFG_LISTEN, "declare", proxy_parse_declare },
Olivier Houcharda254a372019-04-05 15:30:12 +02002383 { CFG_LISTEN, "retry-on", proxy_parse_retry_on },
Willy Tarreau52543212020-07-09 05:58:51 +02002384#ifdef TCP_KEEPCNT
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +09002385 { CFG_LISTEN, "clitcpka-cnt", proxy_parse_tcpka_cnt },
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +09002386 { CFG_LISTEN, "srvtcpka-cnt", proxy_parse_tcpka_cnt },
Willy Tarreau52543212020-07-09 05:58:51 +02002387#endif
2388#ifdef TCP_KEEPIDLE
2389 { CFG_LISTEN, "clitcpka-idle", proxy_parse_tcpka_idle },
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +09002390 { CFG_LISTEN, "srvtcpka-idle", proxy_parse_tcpka_idle },
Willy Tarreau52543212020-07-09 05:58:51 +02002391#endif
2392#ifdef TCP_KEEPINTVL
2393 { CFG_LISTEN, "clitcpka-intvl", proxy_parse_tcpka_intvl },
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +09002394 { CFG_LISTEN, "srvtcpka-intvl", proxy_parse_tcpka_intvl },
Willy Tarreau52543212020-07-09 05:58:51 +02002395#endif
Willy Tarreau9de1bbd2008-07-09 20:34:27 +02002396 { 0, NULL, NULL },
2397}};
2398
Willy Tarreau0108d902018-11-25 19:14:37 +01002399INITCALL1(STG_REGISTER, cfg_register_keywords, &cfg_kws);
2400
Willy Tarreau960f2cb2016-11-24 12:02:29 +01002401/* Expects to find a frontend named <arg> and returns it, otherwise displays various
2402 * adequate error messages and returns NULL. This function is designed to be used by
2403 * functions requiring a frontend on the CLI.
2404 */
2405struct proxy *cli_find_frontend(struct appctx *appctx, const char *arg)
2406{
2407 struct proxy *px;
2408
2409 if (!*arg) {
Willy Tarreau9d008692019-08-09 11:21:01 +02002410 cli_err(appctx, "A frontend name is expected.\n");
Willy Tarreau960f2cb2016-11-24 12:02:29 +01002411 return NULL;
2412 }
2413
2414 px = proxy_fe_by_name(arg);
2415 if (!px) {
Willy Tarreau9d008692019-08-09 11:21:01 +02002416 cli_err(appctx, "No such frontend.\n");
Willy Tarreau960f2cb2016-11-24 12:02:29 +01002417 return NULL;
2418 }
2419 return px;
2420}
2421
Olivier Houchard614f8d72017-03-14 20:08:46 +01002422/* Expects to find a backend named <arg> and returns it, otherwise displays various
2423 * adequate error messages and returns NULL. This function is designed to be used by
2424 * functions requiring a frontend on the CLI.
2425 */
2426struct proxy *cli_find_backend(struct appctx *appctx, const char *arg)
2427{
2428 struct proxy *px;
2429
2430 if (!*arg) {
Willy Tarreau9d008692019-08-09 11:21:01 +02002431 cli_err(appctx, "A backend name is expected.\n");
Olivier Houchard614f8d72017-03-14 20:08:46 +01002432 return NULL;
2433 }
2434
2435 px = proxy_be_by_name(arg);
2436 if (!px) {
Willy Tarreau9d008692019-08-09 11:21:01 +02002437 cli_err(appctx, "No such backend.\n");
Olivier Houchard614f8d72017-03-14 20:08:46 +01002438 return NULL;
2439 }
2440 return px;
2441}
2442
2443
Willy Tarreau69f591e2020-07-01 07:00:59 +02002444/* parse a "show servers [state|conn]" CLI line, returns 0 if it wants to start
2445 * the dump or 1 if it stops immediately. If an argument is specified, it will
2446 * set the proxy pointer into cli.p0 and its ID into cli.i0. It sets cli.o0 to
2447 * 0 for "state", or 1 for "conn".
William Lallemanda6c5f332016-11-19 02:25:36 +01002448 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002449static int cli_parse_show_servers(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemanda6c5f332016-11-19 02:25:36 +01002450{
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002451 struct proxy *px;
William Lallemanda6c5f332016-11-19 02:25:36 +01002452
Willy Tarreau69f591e2020-07-01 07:00:59 +02002453 appctx->ctx.cli.o0 = *args[2] == 'c'; // "conn" vs "state"
2454
William Lallemanda6c5f332016-11-19 02:25:36 +01002455 /* check if a backend name has been provided */
2456 if (*args[3]) {
2457 /* read server state from local file */
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002458 px = proxy_be_by_name(args[3]);
William Lallemanda6c5f332016-11-19 02:25:36 +01002459
Willy Tarreau9d008692019-08-09 11:21:01 +02002460 if (!px)
2461 return cli_err(appctx, "Can't find backend.\n");
2462
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002463 appctx->ctx.cli.p0 = px;
2464 appctx->ctx.cli.i0 = px->uuid;
William Lallemanda6c5f332016-11-19 02:25:36 +01002465 }
2466 return 0;
2467}
2468
William Dauchyd1a7b852021-02-11 22:51:26 +01002469/* helper to dump server addr */
2470static void dump_server_addr(const struct sockaddr_storage *addr, char *addr_str)
2471{
2472 addr_str[0] = '\0';
2473 switch (addr->ss_family) {
2474 case AF_INET:
2475 case AF_INET6:
2476 addr_to_str(addr, addr_str, INET6_ADDRSTRLEN + 1);
2477 break;
2478 default:
2479 memcpy(addr_str, "-\0", 2);
2480 break;
2481 }
2482}
2483
Willy Tarreau6ff81432020-07-01 07:02:42 +02002484/* dumps server state information for all the servers found in backend cli.p0.
William Lallemanda6c5f332016-11-19 02:25:36 +01002485 * These information are all the parameters which may change during HAProxy runtime.
2486 * By default, we only export to the last known server state file format.
2487 * These information can be used at next startup to recover same level of server state.
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002488 * It uses the proxy pointer from cli.p0, the proxy's id from cli.i0 and the server's
2489 * pointer from cli.p1.
William Lallemanda6c5f332016-11-19 02:25:36 +01002490 */
Willy Tarreau6ff81432020-07-01 07:02:42 +02002491static int dump_servers_state(struct stream_interface *si)
William Lallemanda6c5f332016-11-19 02:25:36 +01002492{
2493 struct appctx *appctx = __objt_appctx(si->end);
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002494 struct proxy *px = appctx->ctx.cli.p0;
William Lallemanda6c5f332016-11-19 02:25:36 +01002495 struct server *srv;
2496 char srv_addr[INET6_ADDRSTRLEN + 1];
William Dauchyd1a7b852021-02-11 22:51:26 +01002497 char srv_agent_addr[INET6_ADDRSTRLEN + 1];
2498 char srv_check_addr[INET6_ADDRSTRLEN + 1];
William Lallemanda6c5f332016-11-19 02:25:36 +01002499 time_t srv_time_since_last_change;
2500 int bk_f_forced_id, srv_f_forced_id;
Baptiste Assmann6d0f38f2018-07-02 17:00:54 +02002501 char *srvrecord;
William Lallemanda6c5f332016-11-19 02:25:36 +01002502
William Lallemanda6c5f332016-11-19 02:25:36 +01002503 /* we don't want to report any state if the backend is not enabled on this process */
Willy Tarreau6daac192019-02-02 17:39:53 +01002504 if (!(proc_mask(px->bind_proc) & pid_bit))
William Lallemanda6c5f332016-11-19 02:25:36 +01002505 return 1;
2506
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002507 if (!appctx->ctx.cli.p1)
2508 appctx->ctx.cli.p1 = px->srv;
William Lallemanda6c5f332016-11-19 02:25:36 +01002509
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002510 for (; appctx->ctx.cli.p1 != NULL; appctx->ctx.cli.p1 = srv->next) {
2511 srv = appctx->ctx.cli.p1;
William Lallemanda6c5f332016-11-19 02:25:36 +01002512
William Dauchyd1a7b852021-02-11 22:51:26 +01002513 dump_server_addr(&srv->addr, srv_addr);
2514 dump_server_addr(&srv->check.addr, srv_check_addr);
2515 dump_server_addr(&srv->agent.addr, srv_agent_addr);
2516
William Lallemanda6c5f332016-11-19 02:25:36 +01002517 srv_time_since_last_change = now.tv_sec - srv->last_change;
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002518 bk_f_forced_id = px->options & PR_O_FORCED_ID ? 1 : 0;
William Lallemanda6c5f332016-11-19 02:25:36 +01002519 srv_f_forced_id = srv->flags & SRV_F_FORCED_ID ? 1 : 0;
2520
Baptiste Assmann6d0f38f2018-07-02 17:00:54 +02002521 srvrecord = NULL;
2522 if (srv->srvrq && srv->srvrq->name)
2523 srvrecord = srv->srvrq->name;
2524
Willy Tarreau69f591e2020-07-01 07:00:59 +02002525 if (appctx->ctx.cli.o0 == 0) {
2526 /* show servers state */
2527 chunk_printf(&trash,
2528 "%d %s "
2529 "%d %s %s "
2530 "%d %d %d %d %ld "
2531 "%d %d %d %d %d "
William Dauchyf6370442020-11-14 19:25:33 +01002532 "%d %d %s %u "
William Dauchyd1a7b852021-02-11 22:51:26 +01002533 "%s %d %d "
2534 "%s %s %d"
Willy Tarreau69f591e2020-07-01 07:00:59 +02002535 "\n",
2536 px->uuid, px->id,
2537 srv->puid, srv->id, srv_addr,
2538 srv->cur_state, srv->cur_admin, srv->uweight, srv->iweight, (long int)srv_time_since_last_change,
2539 srv->check.status, srv->check.result, srv->check.health, srv->check.state, srv->agent.state,
2540 bk_f_forced_id, srv_f_forced_id, srv->hostname ? srv->hostname : "-", srv->svc_port,
William Dauchyd1a7b852021-02-11 22:51:26 +01002541 srvrecord ? srvrecord : "-", srv->use_ssl, srv->check.port,
2542 srv_check_addr, srv_agent_addr, srv->agent.port);
Willy Tarreau69f591e2020-07-01 07:00:59 +02002543 } else {
2544 /* show servers conn */
2545 int thr;
2546
2547 chunk_printf(&trash,
2548 "%s/%s %d/%d %s %u - %u %u %u %u %u %u %d %u",
2549 px->id, srv->id, px->uuid, srv->puid, srv_addr,srv->svc_port,
2550 srv->pool_purge_delay,
2551 srv->curr_used_conns, srv->max_used_conns, srv->est_need_conns,
2552 srv->curr_idle_nb, srv->curr_safe_nb, (int)srv->max_idle_conns, srv->curr_idle_conns);
2553
Willy Tarreau42abe682020-07-02 15:19:57 +02002554 for (thr = 0; thr < global.nbthread && srv->curr_idle_thr; thr++)
Willy Tarreau69f591e2020-07-01 07:00:59 +02002555 chunk_appendf(&trash, " %u", srv->curr_idle_thr[thr]);
2556
2557 chunk_appendf(&trash, "\n");
2558 }
2559
Willy Tarreau06d80a92017-10-19 14:32:15 +02002560 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreaudb398432018-11-15 11:08:52 +01002561 si_rx_room_blk(si);
William Lallemanda6c5f332016-11-19 02:25:36 +01002562 return 0;
2563 }
2564 }
2565 return 1;
2566}
2567
2568/* Parses backend list or simply use backend name provided by the user to return
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002569 * states of servers to stdout. It dumps proxy <cli.p0> and stops if <cli.i0> is
2570 * non-null.
William Lallemanda6c5f332016-11-19 02:25:36 +01002571 */
2572static int cli_io_handler_servers_state(struct appctx *appctx)
2573{
2574 struct stream_interface *si = appctx->owner;
William Lallemanda6c5f332016-11-19 02:25:36 +01002575 struct proxy *curproxy;
2576
2577 chunk_reset(&trash);
2578
2579 if (appctx->st2 == STAT_ST_INIT) {
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002580 if (!appctx->ctx.cli.p0)
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002581 appctx->ctx.cli.p0 = proxies_list;
William Lallemanda6c5f332016-11-19 02:25:36 +01002582 appctx->st2 = STAT_ST_HEAD;
2583 }
2584
2585 if (appctx->st2 == STAT_ST_HEAD) {
Willy Tarreau69f591e2020-07-01 07:00:59 +02002586 if (appctx->ctx.cli.o0 == 0)
2587 chunk_printf(&trash, "%d\n# %s\n", SRV_STATE_FILE_VERSION, SRV_STATE_FILE_FIELD_NAMES);
2588 else
2589 chunk_printf(&trash,
2590 "# 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",
2591 global.nbthread);
2592
Willy Tarreau06d80a92017-10-19 14:32:15 +02002593 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreaudb398432018-11-15 11:08:52 +01002594 si_rx_room_blk(si);
William Lallemanda6c5f332016-11-19 02:25:36 +01002595 return 0;
2596 }
2597 appctx->st2 = STAT_ST_INFO;
2598 }
2599
2600 /* STAT_ST_INFO */
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002601 for (; appctx->ctx.cli.p0 != NULL; appctx->ctx.cli.p0 = curproxy->next) {
2602 curproxy = appctx->ctx.cli.p0;
William Lallemanda6c5f332016-11-19 02:25:36 +01002603 /* servers are only in backends */
2604 if (curproxy->cap & PR_CAP_BE) {
Willy Tarreau6ff81432020-07-01 07:02:42 +02002605 if (!dump_servers_state(si))
William Lallemanda6c5f332016-11-19 02:25:36 +01002606 return 0;
William Lallemanda6c5f332016-11-19 02:25:36 +01002607 }
2608 /* only the selected proxy is dumped */
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002609 if (appctx->ctx.cli.i0)
William Lallemanda6c5f332016-11-19 02:25:36 +01002610 break;
2611 }
2612
2613 return 1;
2614}
2615
Willy Tarreau608ea592016-12-16 18:01:15 +01002616/* Parses backend list and simply report backend names. It keeps the proxy
2617 * pointer in cli.p0.
2618 */
William Lallemand933efcd2016-11-22 12:34:16 +01002619static int cli_io_handler_show_backend(struct appctx *appctx)
2620{
William Lallemand933efcd2016-11-22 12:34:16 +01002621 struct stream_interface *si = appctx->owner;
2622 struct proxy *curproxy;
2623
2624 chunk_reset(&trash);
2625
Willy Tarreau608ea592016-12-16 18:01:15 +01002626 if (!appctx->ctx.cli.p0) {
William Lallemand933efcd2016-11-22 12:34:16 +01002627 chunk_printf(&trash, "# name\n");
Willy Tarreau06d80a92017-10-19 14:32:15 +02002628 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreaudb398432018-11-15 11:08:52 +01002629 si_rx_room_blk(si);
William Lallemand933efcd2016-11-22 12:34:16 +01002630 return 0;
2631 }
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002632 appctx->ctx.cli.p0 = proxies_list;
William Lallemand933efcd2016-11-22 12:34:16 +01002633 }
2634
Willy Tarreau608ea592016-12-16 18:01:15 +01002635 for (; appctx->ctx.cli.p0 != NULL; appctx->ctx.cli.p0 = curproxy->next) {
2636 curproxy = appctx->ctx.cli.p0;
William Lallemand933efcd2016-11-22 12:34:16 +01002637
2638 /* looking for backends only */
2639 if (!(curproxy->cap & PR_CAP_BE))
2640 continue;
2641
2642 /* we don't want to list a backend which is bound to this process */
Willy Tarreau6daac192019-02-02 17:39:53 +01002643 if (!(proc_mask(curproxy->bind_proc) & pid_bit))
William Lallemand933efcd2016-11-22 12:34:16 +01002644 continue;
2645
2646 chunk_appendf(&trash, "%s\n", curproxy->id);
Willy Tarreau06d80a92017-10-19 14:32:15 +02002647 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreaudb398432018-11-15 11:08:52 +01002648 si_rx_room_blk(si);
William Lallemand933efcd2016-11-22 12:34:16 +01002649 return 0;
2650 }
2651 }
2652
2653 return 1;
2654}
William Lallemanda6c5f332016-11-19 02:25:36 +01002655
Willy Tarreaua275a372018-08-21 14:50:44 +02002656/* Parses the "enable dynamic-cookies backend" directive, it always returns 1.
2657 *
2658 * Grabs the proxy lock and each server's lock.
2659 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002660static int cli_parse_enable_dyncookie_backend(char **args, char *payload, struct appctx *appctx, void *private)
Olivier Houchard614f8d72017-03-14 20:08:46 +01002661{
2662 struct proxy *px;
2663 struct server *s;
2664
2665 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2666 return 1;
2667
2668 px = cli_find_backend(appctx, args[3]);
2669 if (!px)
2670 return 1;
2671
Willy Tarreau5e83d992019-07-30 11:59:34 +02002672 /* Note: this lock is to make sure this doesn't change while another
2673 * thread is in srv_set_dyncookie().
2674 */
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002675 HA_RWLOCK_WRLOCK(PROXY_LOCK, &px->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002676 px->ck_opts |= PR_CK_DYNAMIC;
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002677 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &px->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002678
Willy Tarreaua275a372018-08-21 14:50:44 +02002679 for (s = px->srv; s != NULL; s = s->next) {
2680 HA_SPIN_LOCK(SERVER_LOCK, &s->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002681 srv_set_dyncookie(s);
Willy Tarreaua275a372018-08-21 14:50:44 +02002682 HA_SPIN_UNLOCK(SERVER_LOCK, &s->lock);
2683 }
2684
Olivier Houchard614f8d72017-03-14 20:08:46 +01002685 return 1;
2686}
2687
Willy Tarreaua275a372018-08-21 14:50:44 +02002688/* Parses the "disable dynamic-cookies backend" directive, it always returns 1.
2689 *
2690 * Grabs the proxy lock and each server's lock.
2691 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002692static int cli_parse_disable_dyncookie_backend(char **args, char *payload, struct appctx *appctx, void *private)
Olivier Houchard614f8d72017-03-14 20:08:46 +01002693{
2694 struct proxy *px;
2695 struct server *s;
2696
2697 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2698 return 1;
2699
2700 px = cli_find_backend(appctx, args[3]);
2701 if (!px)
2702 return 1;
2703
Willy Tarreau5e83d992019-07-30 11:59:34 +02002704 /* Note: this lock is to make sure this doesn't change while another
2705 * thread is in srv_set_dyncookie().
2706 */
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002707 HA_RWLOCK_WRLOCK(PROXY_LOCK, &px->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002708 px->ck_opts &= ~PR_CK_DYNAMIC;
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002709 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &px->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002710
2711 for (s = px->srv; s != NULL; s = s->next) {
Willy Tarreaua275a372018-08-21 14:50:44 +02002712 HA_SPIN_LOCK(SERVER_LOCK, &s->lock);
Willy Tarreau61cfdf42021-02-20 10:46:51 +01002713 if (!(s->flags & SRV_F_COOKIESET))
2714 ha_free(&s->cookie);
Willy Tarreaua275a372018-08-21 14:50:44 +02002715 HA_SPIN_UNLOCK(SERVER_LOCK, &s->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002716 }
2717
2718 return 1;
2719}
2720
Willy Tarreaua275a372018-08-21 14:50:44 +02002721/* Parses the "set dynamic-cookie-key backend" directive, it always returns 1.
2722 *
2723 * Grabs the proxy lock and each server's lock.
2724 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002725static int cli_parse_set_dyncookie_key_backend(char **args, char *payload, struct appctx *appctx, void *private)
Olivier Houchard614f8d72017-03-14 20:08:46 +01002726{
2727 struct proxy *px;
2728 struct server *s;
2729 char *newkey;
2730
2731 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2732 return 1;
2733
2734 px = cli_find_backend(appctx, args[3]);
2735 if (!px)
2736 return 1;
2737
Willy Tarreau9d008692019-08-09 11:21:01 +02002738 if (!*args[4])
2739 return cli_err(appctx, "String value expected.\n");
Olivier Houchard614f8d72017-03-14 20:08:46 +01002740
2741 newkey = strdup(args[4]);
Willy Tarreau9d008692019-08-09 11:21:01 +02002742 if (!newkey)
2743 return cli_err(appctx, "Failed to allocate memory.\n");
Willy Tarreaua275a372018-08-21 14:50:44 +02002744
Willy Tarreau5e83d992019-07-30 11:59:34 +02002745 /* Note: this lock is to make sure this doesn't change while another
2746 * thread is in srv_set_dyncookie().
2747 */
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002748 HA_RWLOCK_WRLOCK(PROXY_LOCK, &px->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002749 free(px->dyncookie_key);
2750 px->dyncookie_key = newkey;
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002751 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &px->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002752
Willy Tarreaua275a372018-08-21 14:50:44 +02002753 for (s = px->srv; s != NULL; s = s->next) {
2754 HA_SPIN_LOCK(SERVER_LOCK, &s->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002755 srv_set_dyncookie(s);
Willy Tarreaua275a372018-08-21 14:50:44 +02002756 HA_SPIN_UNLOCK(SERVER_LOCK, &s->lock);
2757 }
2758
Olivier Houchard614f8d72017-03-14 20:08:46 +01002759 return 1;
2760}
2761
Willy Tarreaua275a372018-08-21 14:50:44 +02002762/* Parses the "set maxconn frontend" directive, it always returns 1.
2763 *
2764 * Grabs the proxy lock.
2765 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002766static int cli_parse_set_maxconn_frontend(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002767{
2768 struct proxy *px;
2769 struct listener *l;
2770 int v;
2771
2772 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2773 return 1;
2774
2775 px = cli_find_frontend(appctx, args[3]);
2776 if (!px)
2777 return 1;
2778
Willy Tarreau9d008692019-08-09 11:21:01 +02002779 if (!*args[4])
2780 return cli_err(appctx, "Integer value expected.\n");
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002781
2782 v = atoi(args[4]);
Willy Tarreau9d008692019-08-09 11:21:01 +02002783 if (v < 0)
2784 return cli_err(appctx, "Value out of range.\n");
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002785
2786 /* OK, the value is fine, so we assign it to the proxy and to all of
2787 * its listeners. The blocked ones will be dequeued.
2788 */
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002789 HA_RWLOCK_WRLOCK(PROXY_LOCK, &px->lock);
Willy Tarreaua275a372018-08-21 14:50:44 +02002790
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002791 px->maxconn = v;
2792 list_for_each_entry(l, &px->conf.listeners, by_fe) {
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002793 if (l->state == LI_FULL)
2794 resume_listener(l);
2795 }
2796
Willy Tarreau241797a2019-12-10 14:10:52 +01002797 if (px->maxconn > px->feconn)
2798 dequeue_proxy_listeners(px);
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002799
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002800 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &px->lock);
Willy Tarreaua275a372018-08-21 14:50:44 +02002801
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002802 return 1;
2803}
2804
Willy Tarreaua275a372018-08-21 14:50:44 +02002805/* Parses the "shutdown frontend" directive, it always returns 1.
2806 *
2807 * Grabs the proxy lock.
2808 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002809static int cli_parse_shutdown_frontend(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau5212d7f2016-11-24 11:13:06 +01002810{
2811 struct proxy *px;
2812
2813 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2814 return 1;
2815
2816 px = cli_find_frontend(appctx, args[2]);
2817 if (!px)
2818 return 1;
2819
Willy Tarreauc3914d42020-09-24 08:39:22 +02002820 if (px->disabled)
Willy Tarreau9d008692019-08-09 11:21:01 +02002821 return cli_msg(appctx, LOG_NOTICE, "Frontend was already shut down.\n");
Willy Tarreau5212d7f2016-11-24 11:13:06 +01002822
Willy Tarreau5212d7f2016-11-24 11:13:06 +01002823 stop_proxy(px);
2824 return 1;
2825}
2826
Willy Tarreaua275a372018-08-21 14:50:44 +02002827/* Parses the "disable frontend" directive, it always returns 1.
2828 *
2829 * Grabs the proxy lock.
2830 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002831static int cli_parse_disable_frontend(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau15b9e682016-11-24 11:55:28 +01002832{
2833 struct proxy *px;
Willy Tarreaua275a372018-08-21 14:50:44 +02002834 int ret;
Willy Tarreau15b9e682016-11-24 11:55:28 +01002835
2836 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2837 return 1;
2838
2839 px = cli_find_frontend(appctx, args[2]);
2840 if (!px)
2841 return 1;
2842
Willy Tarreauc3914d42020-09-24 08:39:22 +02002843 if (px->disabled)
Willy Tarreau9d008692019-08-09 11:21:01 +02002844 return cli_msg(appctx, LOG_NOTICE, "Frontend was previously shut down, cannot disable.\n");
Willy Tarreau15b9e682016-11-24 11:55:28 +01002845
Willy Tarreauf18d9682020-09-24 08:04:27 +02002846 if (!px->li_ready)
2847 return cli_msg(appctx, LOG_NOTICE, "All sockets are already disabled.\n");
Willy Tarreau15b9e682016-11-24 11:55:28 +01002848
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002849 HA_RWLOCK_WRLOCK(PROXY_LOCK, &px->lock);
Willy Tarreaua275a372018-08-21 14:50:44 +02002850 ret = pause_proxy(px);
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002851 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &px->lock);
Willy Tarreaua275a372018-08-21 14:50:44 +02002852
Willy Tarreau9d008692019-08-09 11:21:01 +02002853 if (!ret)
2854 return cli_err(appctx, "Failed to pause frontend, check logs for precise cause.\n");
2855
Willy Tarreau15b9e682016-11-24 11:55:28 +01002856 return 1;
2857}
2858
Willy Tarreaua275a372018-08-21 14:50:44 +02002859/* Parses the "enable frontend" directive, it always returns 1.
2860 *
2861 * Grabs the proxy lock.
2862 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002863static int cli_parse_enable_frontend(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau15b9e682016-11-24 11:55:28 +01002864{
2865 struct proxy *px;
Willy Tarreaua275a372018-08-21 14:50:44 +02002866 int ret;
Willy Tarreau15b9e682016-11-24 11:55:28 +01002867
2868 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2869 return 1;
2870
2871 px = cli_find_frontend(appctx, args[2]);
2872 if (!px)
2873 return 1;
2874
Willy Tarreauc3914d42020-09-24 08:39:22 +02002875 if (px->disabled)
Willy Tarreau9d008692019-08-09 11:21:01 +02002876 return cli_err(appctx, "Frontend was previously shut down, cannot enable.\n");
Willy Tarreau15b9e682016-11-24 11:55:28 +01002877
Willy Tarreauf18d9682020-09-24 08:04:27 +02002878 if (px->li_ready == px->li_all)
2879 return cli_msg(appctx, LOG_NOTICE, "All sockets are already enabled.\n");
Willy Tarreau15b9e682016-11-24 11:55:28 +01002880
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002881 HA_RWLOCK_WRLOCK(PROXY_LOCK, &px->lock);
Willy Tarreaua275a372018-08-21 14:50:44 +02002882 ret = resume_proxy(px);
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002883 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &px->lock);
Willy Tarreaua275a372018-08-21 14:50:44 +02002884
Willy Tarreau9d008692019-08-09 11:21:01 +02002885 if (!ret)
2886 return cli_err(appctx, "Failed to resume frontend, check logs for precise cause (port conflict?).\n");
Willy Tarreau15b9e682016-11-24 11:55:28 +01002887 return 1;
2888}
2889
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002890/* "show errors" handler for the CLI. Returns 0 if wants to continue, 1 to stop
2891 * now.
2892 */
2893static int cli_parse_show_errors(char **args, char *payload, struct appctx *appctx, void *private)
2894{
2895 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
2896 return 1;
2897
2898 if (*args[2]) {
2899 struct proxy *px;
2900
2901 px = proxy_find_by_name(args[2], 0, 0);
2902 if (px)
2903 appctx->ctx.errors.iid = px->uuid;
2904 else
2905 appctx->ctx.errors.iid = atoi(args[2]);
2906
Willy Tarreau9d008692019-08-09 11:21:01 +02002907 if (!appctx->ctx.errors.iid)
2908 return cli_err(appctx, "No such proxy.\n");
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002909 }
2910 else
2911 appctx->ctx.errors.iid = -1; // dump all proxies
2912
2913 appctx->ctx.errors.flag = 0;
2914 if (strcmp(args[3], "request") == 0)
2915 appctx->ctx.errors.flag |= 4; // ignore response
2916 else if (strcmp(args[3], "response") == 0)
2917 appctx->ctx.errors.flag |= 2; // ignore request
2918 appctx->ctx.errors.px = NULL;
2919 return 0;
2920}
2921
2922/* This function dumps all captured errors onto the stream interface's
2923 * read buffer. It returns 0 if the output buffer is full and it needs
2924 * to be called again, otherwise non-zero.
2925 */
2926static int cli_io_handler_show_errors(struct appctx *appctx)
2927{
2928 struct stream_interface *si = appctx->owner;
2929 extern const char *monthname[12];
2930
2931 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW)))
2932 return 1;
2933
2934 chunk_reset(&trash);
2935
2936 if (!appctx->ctx.errors.px) {
2937 /* the function had not been called yet, let's prepare the
2938 * buffer for a response.
2939 */
2940 struct tm tm;
2941
2942 get_localtime(date.tv_sec, &tm);
2943 chunk_appendf(&trash, "Total events captured on [%02d/%s/%04d:%02d:%02d:%02d.%03d] : %u\n",
2944 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
2945 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(date.tv_usec/1000),
2946 error_snapshot_id);
2947
Willy Tarreau36b27362018-09-07 19:55:44 +02002948 if (ci_putchk(si_ic(si), &trash) == -1)
2949 goto cant_send;
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002950
2951 appctx->ctx.errors.px = proxies_list;
2952 appctx->ctx.errors.bol = 0;
2953 appctx->ctx.errors.ptr = -1;
2954 }
2955
2956 /* we have two inner loops here, one for the proxy, the other one for
2957 * the buffer.
2958 */
2959 while (appctx->ctx.errors.px) {
2960 struct error_snapshot *es;
2961
Willy Tarreau55039082020-10-20 17:38:10 +02002962 HA_RWLOCK_RDLOCK(PROXY_LOCK, &appctx->ctx.errors.px->lock);
Willy Tarreau36b27362018-09-07 19:55:44 +02002963
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002964 if ((appctx->ctx.errors.flag & 1) == 0) {
Willy Tarreauc55015e2018-09-07 19:02:32 +02002965 es = appctx->ctx.errors.px->invalid_req;
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002966 if (appctx->ctx.errors.flag & 2) // skip req
2967 goto next;
2968 }
2969 else {
Willy Tarreauc55015e2018-09-07 19:02:32 +02002970 es = appctx->ctx.errors.px->invalid_rep;
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002971 if (appctx->ctx.errors.flag & 4) // skip resp
2972 goto next;
2973 }
2974
Willy Tarreauc55015e2018-09-07 19:02:32 +02002975 if (!es)
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002976 goto next;
2977
2978 if (appctx->ctx.errors.iid >= 0 &&
2979 appctx->ctx.errors.px->uuid != appctx->ctx.errors.iid &&
Olivier Houchardbdb00c52020-03-12 15:30:17 +01002980 (!es->oe || es->oe->uuid != appctx->ctx.errors.iid))
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002981 goto next;
2982
2983 if (appctx->ctx.errors.ptr < 0) {
2984 /* just print headers now */
2985
2986 char pn[INET6_ADDRSTRLEN];
2987 struct tm tm;
2988 int port;
2989
2990 get_localtime(es->when.tv_sec, &tm);
2991 chunk_appendf(&trash, " \n[%02d/%s/%04d:%02d:%02d:%02d.%03d]",
2992 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
2993 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(es->when.tv_usec/1000));
2994
2995 switch (addr_to_str(&es->src, pn, sizeof(pn))) {
2996 case AF_INET:
2997 case AF_INET6:
2998 port = get_host_port(&es->src);
2999 break;
3000 default:
3001 port = 0;
3002 }
3003
3004 switch (appctx->ctx.errors.flag & 1) {
3005 case 0:
3006 chunk_appendf(&trash,
3007 " frontend %s (#%d): invalid request\n"
3008 " backend %s (#%d)",
3009 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
Olivier Houchardbdb00c52020-03-12 15:30:17 +01003010 (es->oe && es->oe->cap & PR_CAP_BE) ? es->oe->id : "<NONE>",
3011 (es->oe && es->oe->cap & PR_CAP_BE) ? es->oe->uuid : -1);
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003012 break;
3013 case 1:
3014 chunk_appendf(&trash,
3015 " backend %s (#%d): invalid response\n"
3016 " frontend %s (#%d)",
3017 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
Olivier Houchardbdb00c52020-03-12 15:30:17 +01003018 es->oe ? es->oe->id : "<NONE>" , es->oe ? es->oe->uuid : -1);
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003019 break;
3020 }
3021
3022 chunk_appendf(&trash,
3023 ", server %s (#%d), event #%u, src %s:%d\n"
3024 " buffer starts at %llu (including %u out), %u free,\n"
3025 " len %u, wraps at %u, error at position %u\n",
3026 es->srv ? es->srv->id : "<NONE>",
3027 es->srv ? es->srv->puid : -1,
3028 es->ev_id, pn, port,
3029 es->buf_ofs, es->buf_out,
3030 global.tune.bufsize - es->buf_out - es->buf_len,
3031 es->buf_len, es->buf_wrap, es->buf_err);
3032
3033 if (es->show)
3034 es->show(&trash, es);
3035
3036 chunk_appendf(&trash, " \n");
3037
Willy Tarreau36b27362018-09-07 19:55:44 +02003038 if (ci_putchk(si_ic(si), &trash) == -1)
3039 goto cant_send_unlock;
3040
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003041 appctx->ctx.errors.ptr = 0;
3042 appctx->ctx.errors.ev_id = es->ev_id;
3043 }
3044
3045 if (appctx->ctx.errors.ev_id != es->ev_id) {
3046 /* the snapshot changed while we were dumping it */
3047 chunk_appendf(&trash,
3048 " WARNING! update detected on this snapshot, dump interrupted. Please re-check!\n");
Willy Tarreau36b27362018-09-07 19:55:44 +02003049 if (ci_putchk(si_ic(si), &trash) == -1)
3050 goto cant_send_unlock;
3051
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003052 goto next;
3053 }
3054
3055 /* OK, ptr >= 0, so we have to dump the current line */
Willy Tarreau4bc7d902018-09-07 20:07:17 +02003056 while (appctx->ctx.errors.ptr < es->buf_len && appctx->ctx.errors.ptr < global.tune.bufsize) {
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003057 int newptr;
3058 int newline;
3059
3060 newline = appctx->ctx.errors.bol;
3061 newptr = dump_text_line(&trash, es->buf, global.tune.bufsize, es->buf_len, &newline, appctx->ctx.errors.ptr);
3062 if (newptr == appctx->ctx.errors.ptr)
Willy Tarreau36b27362018-09-07 19:55:44 +02003063 goto cant_send_unlock;
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003064
Willy Tarreau36b27362018-09-07 19:55:44 +02003065 if (ci_putchk(si_ic(si), &trash) == -1)
3066 goto cant_send_unlock;
3067
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003068 appctx->ctx.errors.ptr = newptr;
3069 appctx->ctx.errors.bol = newline;
3070 };
3071 next:
Willy Tarreau55039082020-10-20 17:38:10 +02003072 HA_RWLOCK_RDUNLOCK(PROXY_LOCK, &appctx->ctx.errors.px->lock);
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003073 appctx->ctx.errors.bol = 0;
3074 appctx->ctx.errors.ptr = -1;
3075 appctx->ctx.errors.flag ^= 1;
3076 if (!(appctx->ctx.errors.flag & 1))
3077 appctx->ctx.errors.px = appctx->ctx.errors.px->next;
3078 }
3079
3080 /* dump complete */
3081 return 1;
Willy Tarreau36b27362018-09-07 19:55:44 +02003082
3083 cant_send_unlock:
Willy Tarreau55039082020-10-20 17:38:10 +02003084 HA_RWLOCK_RDUNLOCK(PROXY_LOCK, &appctx->ctx.errors.px->lock);
Willy Tarreau36b27362018-09-07 19:55:44 +02003085 cant_send:
Willy Tarreaudb398432018-11-15 11:08:52 +01003086 si_rx_room_blk(si);
Willy Tarreau36b27362018-09-07 19:55:44 +02003087 return 0;
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003088}
3089
William Lallemanda6c5f332016-11-19 02:25:36 +01003090/* register cli keywords */
3091static struct cli_kw_list cli_kws = {{ },{
Willy Tarreaub205bfd2021-05-07 11:38:37 +02003092 { { "disable", "frontend", NULL }, "disable frontend <frontend> : temporarily disable specific frontend", cli_parse_disable_frontend, NULL, NULL },
3093 { { "enable", "frontend", NULL }, "enable frontend <frontend> : re-enable specific frontend", cli_parse_enable_frontend, NULL, NULL },
3094 { { "set", "maxconn", "frontend", NULL }, "set maxconn frontend <frontend> <value> : change a frontend's maxconn setting", cli_parse_set_maxconn_frontend, NULL },
3095 { { "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 },
3096 { { "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 },
3097 { { "show", "backend", NULL }, "show backend : list backends in the current running config", NULL, cli_io_handler_show_backend },
3098 { { "shutdown", "frontend", NULL }, "shutdown frontend <frontend> : stop a specific frontend", cli_parse_shutdown_frontend, NULL, NULL },
3099 { { "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 },
3100 { { "enable", "dynamic-cookie", "backend", NULL }, "enable dynamic-cookie backend <bk> : enable dynamic cookies on a specific backend", cli_parse_enable_dyncookie_backend, NULL },
3101 { { "disable", "dynamic-cookie", "backend", NULL }, "disable dynamic-cookie backend <bk> : disable dynamic cookies on a specific backend", cli_parse_disable_dyncookie_backend, NULL },
3102 { { "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 +01003103 {{},}
3104}};
3105
Willy Tarreau0108d902018-11-25 19:14:37 +01003106INITCALL1(STG_REGISTER, cli_register_kw, &cli_kws);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003107
3108/*
3109 * Local variables:
3110 * c-indent-level: 8
3111 * c-basic-offset: 8
3112 * End:
3113 */