blob: c3859e6056ec78810a261b3fe5af78f3be273350 [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>
Frédéric Lécaillef57c64f2021-02-18 16:35:43 +010051#include <haproxy/xprt_quic.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020052
Willy Tarreaubaaee002006-06-26 02:48:02 +020053
Willy Tarreau918ff602011-07-25 16:33:49 +020054int listeners; /* # of proxy listeners, set by cfgparse */
Olivier Houchardfbc74e82017-11-24 16:54:05 +010055struct proxy *proxies_list = NULL; /* list of all existing proxies */
Willy Tarreau53fb4ae2009-10-04 23:04:08 +020056struct eb_root used_proxy_id = EB_ROOT; /* list of proxy IDs in use */
Willy Tarreauf79d9502014-03-15 07:22:35 +010057struct eb_root proxy_by_name = EB_ROOT; /* tree of proxies sorted by name */
Willy Tarreau0a0f6a72021-02-12 13:52:11 +010058struct eb_root defproxy_by_name = EB_ROOT; /* tree of default proxies sorted by name (dups possible) */
Willy Tarreau10479e42010-12-12 14:00:34 +010059unsigned int error_snapshot_id = 0; /* global ID assigned to each error then incremented */
Willy Tarreaubaaee002006-06-26 02:48:02 +020060
Willy Tarreau3a1f5fd2018-11-11 15:40:36 +010061/* proxy->options */
62const struct cfg_opt cfg_opts[] =
63{
64 { "abortonclose", PR_O_ABRT_CLOSE, PR_CAP_BE, 0, 0 },
65 { "allbackups", PR_O_USE_ALL_BK, PR_CAP_BE, 0, 0 },
66 { "checkcache", PR_O_CHK_CACHE, PR_CAP_BE, 0, PR_MODE_HTTP },
67 { "clitcpka", PR_O_TCP_CLI_KA, PR_CAP_FE, 0, 0 },
68 { "contstats", PR_O_CONTSTATS, PR_CAP_FE, 0, 0 },
69 { "dontlognull", PR_O_NULLNOLOG, PR_CAP_FE, 0, 0 },
70 { "http_proxy", PR_O_HTTP_PROXY, PR_CAP_FE | PR_CAP_BE, 0, PR_MODE_HTTP },
71 { "http-buffer-request", PR_O_WREQ_BODY, PR_CAP_FE | PR_CAP_BE, 0, PR_MODE_HTTP },
72 { "http-ignore-probes", PR_O_IGNORE_PRB, PR_CAP_FE, 0, PR_MODE_HTTP },
73 { "prefer-last-server", PR_O_PREF_LAST, PR_CAP_BE, 0, PR_MODE_HTTP },
74 { "logasap", PR_O_LOGASAP, PR_CAP_FE, 0, 0 },
75 { "nolinger", PR_O_TCP_NOLING, PR_CAP_FE | PR_CAP_BE, 0, 0 },
76 { "persist", PR_O_PERSIST, PR_CAP_BE, 0, 0 },
77 { "srvtcpka", PR_O_TCP_SRV_KA, PR_CAP_BE, 0, 0 },
Willy Tarreaue5733232019-05-22 19:24:06 +020078#ifdef USE_TPROXY
Willy Tarreau3a1f5fd2018-11-11 15:40:36 +010079 { "transparent", PR_O_TRANSP, PR_CAP_BE, 0, 0 },
80#else
81 { "transparent", 0, 0, 0, 0 },
82#endif
83
84 { NULL, 0, 0, 0, 0 }
85};
86
87/* proxy->options2 */
88const struct cfg_opt cfg_opts2[] =
89{
Willy Tarreaue5733232019-05-22 19:24:06 +020090#ifdef USE_LINUX_SPLICE
Willy Tarreau3a1f5fd2018-11-11 15:40:36 +010091 { "splice-request", PR_O2_SPLIC_REQ, PR_CAP_FE|PR_CAP_BE, 0, 0 },
92 { "splice-response", PR_O2_SPLIC_RTR, PR_CAP_FE|PR_CAP_BE, 0, 0 },
93 { "splice-auto", PR_O2_SPLIC_AUT, PR_CAP_FE|PR_CAP_BE, 0, 0 },
94#else
95 { "splice-request", 0, 0, 0, 0 },
96 { "splice-response", 0, 0, 0, 0 },
97 { "splice-auto", 0, 0, 0, 0 },
98#endif
99 { "accept-invalid-http-request", PR_O2_REQBUG_OK, PR_CAP_FE, 0, PR_MODE_HTTP },
100 { "accept-invalid-http-response", PR_O2_RSPBUG_OK, PR_CAP_BE, 0, PR_MODE_HTTP },
101 { "dontlog-normal", PR_O2_NOLOGNORM, PR_CAP_FE, 0, 0 },
102 { "log-separate-errors", PR_O2_LOGERRORS, PR_CAP_FE, 0, 0 },
103 { "log-health-checks", PR_O2_LOGHCHKS, PR_CAP_BE, 0, 0 },
104 { "socket-stats", PR_O2_SOCKSTAT, PR_CAP_FE, 0, 0 },
105 { "tcp-smart-accept", PR_O2_SMARTACC, PR_CAP_FE, 0, 0 },
106 { "tcp-smart-connect", PR_O2_SMARTCON, PR_CAP_BE, 0, 0 },
Willy Tarreau3a1f5fd2018-11-11 15:40:36 +0100107 { "independent-streams", PR_O2_INDEPSTR, PR_CAP_FE|PR_CAP_BE, 0, 0 },
108 { "http-use-proxy-header", PR_O2_USE_PXHDR, PR_CAP_FE, 0, PR_MODE_HTTP },
109 { "http-pretend-keepalive", PR_O2_FAKE_KA, PR_CAP_BE, 0, PR_MODE_HTTP },
110 { "http-no-delay", PR_O2_NODELAY, PR_CAP_FE|PR_CAP_BE, 0, PR_MODE_HTTP },
Christopher Faulet31930372019-07-15 10:16:58 +0200111 { "http-use-htx", 0, PR_CAP_FE|PR_CAP_BE, 0, 0 }, // deprecated
Christopher Faulet98fbe952019-07-22 16:18:24 +0200112
113 {"h1-case-adjust-bogus-client", PR_O2_H1_ADJ_BUGCLI, PR_CAP_FE, 0, PR_MODE_HTTP },
114 {"h1-case-adjust-bogus-server", PR_O2_H1_ADJ_BUGSRV, PR_CAP_BE, 0, PR_MODE_HTTP },
Christopher Faulet89aed322020-06-02 17:33:56 +0200115 {"disable-h2-upgrade", PR_O2_NO_H2_UPGRADE, PR_CAP_FE, 0, PR_MODE_HTTP },
Willy Tarreau3a1f5fd2018-11-11 15:40:36 +0100116 { NULL, 0, 0, 0 }
117};
118
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100119static void free_stick_rules(struct list *rules)
120{
121 struct sticking_rule *rule, *ruleb;
122
123 list_for_each_entry_safe(rule, ruleb, rules, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200124 LIST_DELETE(&rule->list);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100125 free_acl_cond(rule->cond);
126 release_sample_expr(rule->expr);
127 free(rule);
128 }
129}
130
131void free_proxy(struct proxy *p)
132{
133 struct server *s,*s_next;
134 struct cap_hdr *h,*h_next;
135 struct listener *l,*l_next;
136 struct bind_conf *bind_conf, *bind_back;
137 struct acl_cond *cond, *condb;
138 struct acl *acl, *aclb;
139 struct server_rule *srule, *sruleb;
140 struct switching_rule *rule, *ruleb;
141 struct redirect_rule *rdr, *rdrb;
142 struct logsrv *log, *logb;
143 struct logformat_node *lf, *lfb;
144 struct proxy_deinit_fct *pxdf;
145 struct server_deinit_fct *srvdf;
146
147 free(p->conf.file);
148 free(p->id);
149 free(p->cookie_name);
150 free(p->cookie_domain);
151 free(p->cookie_attrs);
152 free(p->lbprm.arg_str);
153 free(p->server_state_file_name);
154 free(p->capture_name);
155 free(p->monitor_uri);
156 free(p->rdp_cookie_name);
157 free(p->invalid_rep);
158 free(p->invalid_req);
159#if defined(CONFIG_HAP_TRANSPARENT)
160 free(p->conn_src.bind_hdr_name);
161#endif
162 if (p->conf.logformat_string != default_http_log_format &&
163 p->conf.logformat_string != default_tcp_log_format &&
164 p->conf.logformat_string != clf_http_log_format)
165 free(p->conf.logformat_string);
166
167 free(p->conf.lfs_file);
168 free(p->conf.uniqueid_format_string);
169 istfree(&p->header_unique_id);
170 free(p->conf.uif_file);
171 if ((p->lbprm.algo & BE_LB_LKUP) == BE_LB_LKUP_MAP)
172 free(p->lbprm.map.srv);
173
174 if (p->conf.logformat_sd_string != default_rfc5424_sd_log_format)
175 free(p->conf.logformat_sd_string);
176 free(p->conf.lfsd_file);
177
178 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200179 LIST_DELETE(&cond->list);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100180 prune_acl_cond(cond);
181 free(cond);
182 }
183
184 EXTRA_COUNTERS_FREE(p->extra_counters_fe);
185 EXTRA_COUNTERS_FREE(p->extra_counters_be);
186
187 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200188 LIST_DELETE(&acl->list);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100189 prune_acl(acl);
190 free(acl);
191 }
192
193 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200194 LIST_DELETE(&srule->list);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100195 prune_acl_cond(srule->cond);
196 list_for_each_entry_safe(lf, lfb, &srule->expr, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200197 LIST_DELETE(&lf->list);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100198 release_sample_expr(lf->expr);
199 free(lf->arg);
200 free(lf);
201 }
202 free(srule->file);
203 free(srule->cond);
204 free(srule);
205 }
206
207 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200208 LIST_DELETE(&rule->list);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100209 if (rule->cond) {
210 prune_acl_cond(rule->cond);
211 free(rule->cond);
212 }
213 free(rule->file);
214 free(rule);
215 }
216
217 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200218 LIST_DELETE(&rdr->list);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100219 if (rdr->cond) {
220 prune_acl_cond(rdr->cond);
221 free(rdr->cond);
222 }
223 free(rdr->rdr_str);
224 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200225 LIST_DELETE(&lf->list);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100226 free(lf);
227 }
228 free(rdr);
229 }
230
231 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200232 LIST_DELETE(&log->list);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100233 free(log);
234 }
235
236 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200237 LIST_DELETE(&lf->list);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100238 release_sample_expr(lf->expr);
239 free(lf->arg);
240 free(lf);
241 }
242
243 list_for_each_entry_safe(lf, lfb, &p->logformat_sd, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200244 LIST_DELETE(&lf->list);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100245 release_sample_expr(lf->expr);
246 free(lf->arg);
247 free(lf);
248 }
249
250 list_for_each_entry_safe(lf, lfb, &p->format_unique_id, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200251 LIST_DELETE(&lf->list);
Amaury Denoyelle27fefa12021-03-24 16:13:20 +0100252 release_sample_expr(lf->expr);
253 free(lf->arg);
254 free(lf);
255 }
256
257 free_act_rules(&p->tcp_req.inspect_rules);
258 free_act_rules(&p->tcp_rep.inspect_rules);
259 free_act_rules(&p->tcp_req.l4_rules);
260 free_act_rules(&p->tcp_req.l5_rules);
261 free_act_rules(&p->http_req_rules);
262 free_act_rules(&p->http_res_rules);
263 free_act_rules(&p->http_after_res_rules);
264
265 free_stick_rules(&p->storersp_rules);
266 free_stick_rules(&p->sticking_rules);
267
268 h = p->req_cap;
269 while (h) {
270 h_next = h->next;
271 free(h->name);
272 pool_destroy(h->pool);
273 free(h);
274 h = h_next;
275 }/* end while(h) */
276
277 h = p->rsp_cap;
278 while (h) {
279 h_next = h->next;
280 free(h->name);
281 pool_destroy(h->pool);
282 free(h);
283 h = h_next;
284 }/* end while(h) */
285
286 s = p->srv;
287 while (s) {
288 s_next = s->next;
289 list_for_each_entry(srvdf, &server_deinit_list, list)
290 srvdf->fct(s);
291 free_server(s);
292 s = s_next;
293 }/* 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));
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +0200758 hdr->name = NULL; /* not a header capture */
759 hdr->namelen = 0;
760 hdr->len = len;
761 hdr->pool = create_pool("caphdr", hdr->len + 1, MEM_F_SHARED);
762
763 if (strcmp(args[2], "request") == 0) {
764 hdr->next = curpx->req_cap;
765 hdr->index = curpx->nb_req_cap++;
766 curpx->req_cap = hdr;
767 }
768 if (strcmp(args[2], "response") == 0) {
769 hdr->next = curpx->rsp_cap;
770 hdr->index = curpx->nb_rsp_cap++;
771 curpx->rsp_cap = hdr;
772 }
773 return 0;
774 }
775 else {
776 memprintf(err, "unknown declaration type '%s' (supports 'capture')", args[1]);
777 return -1;
778 }
779}
780
Olivier Houcharda254a372019-04-05 15:30:12 +0200781/* This function parses a "retry-on" statement */
782static int
783proxy_parse_retry_on(char **args, int section, struct proxy *curpx,
Willy Tarreau01825162021-03-09 09:53:46 +0100784 const struct proxy *defpx, const char *file, int line,
Olivier Houcharda254a372019-04-05 15:30:12 +0200785 char **err)
786{
787 int i;
788
789 if (!(*args[1])) {
790 memprintf(err, "'%s' needs at least one keyword to specify when to retry", args[0]);
791 return -1;
792 }
793 if (!(curpx->cap & PR_CAP_BE)) {
794 memprintf(err, "'%s' only available in backend or listen section", args[0]);
795 return -1;
796 }
797 curpx->retry_type = 0;
798 for (i = 1; *(args[i]); i++) {
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100799 if (strcmp(args[i], "conn-failure") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200800 curpx->retry_type |= PR_RE_CONN_FAILED;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100801 else if (strcmp(args[i], "empty-response") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200802 curpx->retry_type |= PR_RE_DISCONNECTED;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100803 else if (strcmp(args[i], "response-timeout") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200804 curpx->retry_type |= PR_RE_TIMEOUT;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100805 else if (strcmp(args[i], "401") == 0)
Julien Pivotto2de240a2020-11-12 11:14:05 +0100806 curpx->retry_type |= PR_RE_401;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100807 else if (strcmp(args[i], "403") == 0)
Julien Pivotto2de240a2020-11-12 11:14:05 +0100808 curpx->retry_type |= PR_RE_403;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100809 else if (strcmp(args[i], "404") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200810 curpx->retry_type |= PR_RE_404;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100811 else if (strcmp(args[i], "408") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200812 curpx->retry_type |= PR_RE_408;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100813 else if (strcmp(args[i], "425") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200814 curpx->retry_type |= PR_RE_425;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100815 else if (strcmp(args[i], "500") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200816 curpx->retry_type |= PR_RE_500;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100817 else if (strcmp(args[i], "501") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200818 curpx->retry_type |= PR_RE_501;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100819 else if (strcmp(args[i], "502") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200820 curpx->retry_type |= PR_RE_502;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100821 else if (strcmp(args[i], "503") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200822 curpx->retry_type |= PR_RE_503;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100823 else if (strcmp(args[i], "504") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200824 curpx->retry_type |= PR_RE_504;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100825 else if (strcmp(args[i], "0rtt-rejected") == 0)
Olivier Houchard865d8392019-05-03 22:46:27 +0200826 curpx->retry_type |= PR_RE_EARLY_ERROR;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100827 else if (strcmp(args[i], "junk-response") == 0)
Olivier Houcharde3249a92019-05-03 23:01:47 +0200828 curpx->retry_type |= PR_RE_JUNK_REQUEST;
Olivier Houchardddf0e032019-05-10 18:05:40 +0200829 else if (!(strcmp(args[i], "all-retryable-errors")))
830 curpx->retry_type |= PR_RE_CONN_FAILED | PR_RE_DISCONNECTED |
831 PR_RE_TIMEOUT | PR_RE_500 | PR_RE_502 |
832 PR_RE_503 | PR_RE_504 | PR_RE_EARLY_ERROR |
833 PR_RE_JUNK_REQUEST;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100834 else if (strcmp(args[i], "none") == 0) {
Olivier Houcharda254a372019-04-05 15:30:12 +0200835 if (i != 1 || *args[i + 1]) {
836 memprintf(err, "'%s' 'none' keyworld only usable alone", args[0]);
837 return -1;
838 }
839 } else {
840 memprintf(err, "'%s': unknown keyword '%s'", args[0], args[i]);
841 return -1;
842 }
843
844 }
845
846
847 return 0;
848}
849
Willy Tarreau52543212020-07-09 05:58:51 +0200850#ifdef TCP_KEEPCNT
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900851/* This function parses "{cli|srv}tcpka-cnt" statements */
852static int proxy_parse_tcpka_cnt(char **args, int section, struct proxy *proxy,
Willy Tarreau01825162021-03-09 09:53:46 +0100853 const struct proxy *defpx, const char *file, int line,
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900854 char **err)
855{
856 int retval;
857 char *res;
858 unsigned int tcpka_cnt;
859
860 retval = 0;
861
862 if (*args[1] == 0) {
863 memprintf(err, "'%s' expects an integer value", args[0]);
864 return -1;
865 }
866
867 tcpka_cnt = strtol(args[1], &res, 0);
868 if (*res) {
869 memprintf(err, "'%s' : unexpected character '%c' in integer value '%s'", args[0], *res, args[1]);
870 return -1;
871 }
872
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100873 if (strcmp(args[0], "clitcpka-cnt") == 0) {
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900874 if (!(proxy->cap & PR_CAP_FE)) {
875 memprintf(err, "%s will be ignored because %s '%s' has no frontend capability",
876 args[0], proxy_type_str(proxy), proxy->id);
877 retval = 1;
878 }
879 proxy->clitcpka_cnt = tcpka_cnt;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100880 } else if (strcmp(args[0], "srvtcpka-cnt") == 0) {
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900881 if (!(proxy->cap & PR_CAP_BE)) {
882 memprintf(err, "%s will be ignored because %s '%s' has no backend capability",
883 args[0], proxy_type_str(proxy), proxy->id);
884 retval = 1;
885 }
886 proxy->srvtcpka_cnt = tcpka_cnt;
887 } else {
888 /* unreachable */
889 memprintf(err, "'%s': unknown keyword", args[0]);
890 return -1;
891 }
892
893 return retval;
894}
Willy Tarreau52543212020-07-09 05:58:51 +0200895#endif
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900896
Willy Tarreau52543212020-07-09 05:58:51 +0200897#ifdef TCP_KEEPIDLE
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900898/* This function parses "{cli|srv}tcpka-idle" statements */
899static int proxy_parse_tcpka_idle(char **args, int section, struct proxy *proxy,
Willy Tarreau01825162021-03-09 09:53:46 +0100900 const struct proxy *defpx, const char *file, int line,
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900901 char **err)
902{
903 int retval;
904 const char *res;
905 unsigned int tcpka_idle;
906
907 retval = 0;
908
909 if (*args[1] == 0) {
910 memprintf(err, "'%s' expects an integer value", args[0]);
911 return -1;
912 }
913 res = parse_time_err(args[1], &tcpka_idle, TIME_UNIT_S);
914 if (res == PARSE_TIME_OVER) {
915 memprintf(err, "timer overflow in argument '%s' to '%s' (maximum value is 2147483647 ms or ~24.8 days)",
916 args[1], args[0]);
917 return -1;
918 }
919 else if (res == PARSE_TIME_UNDER) {
920 memprintf(err, "timer underflow in argument '%s' to '%s' (minimum non-null value is 1 ms)",
921 args[1], args[0]);
922 return -1;
923 }
924 else if (res) {
925 memprintf(err, "unexpected character '%c' in argument to <%s>.\n", *res, args[0]);
926 return -1;
927 }
928
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100929 if (strcmp(args[0], "clitcpka-idle") == 0) {
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900930 if (!(proxy->cap & PR_CAP_FE)) {
931 memprintf(err, "%s will be ignored because %s '%s' has no frontend capability",
932 args[0], proxy_type_str(proxy), proxy->id);
933 retval = 1;
934 }
935 proxy->clitcpka_idle = tcpka_idle;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100936 } else if (strcmp(args[0], "srvtcpka-idle") == 0) {
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900937 if (!(proxy->cap & PR_CAP_BE)) {
938 memprintf(err, "%s will be ignored because %s '%s' has no backend capability",
939 args[0], proxy_type_str(proxy), proxy->id);
940 retval = 1;
941 }
942 proxy->srvtcpka_idle = tcpka_idle;
943 } else {
944 /* unreachable */
945 memprintf(err, "'%s': unknown keyword", args[0]);
946 return -1;
947 }
948
949 return retval;
950}
Willy Tarreau52543212020-07-09 05:58:51 +0200951#endif
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900952
Willy Tarreau52543212020-07-09 05:58:51 +0200953#ifdef TCP_KEEPINTVL
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900954/* This function parses "{cli|srv}tcpka-intvl" statements */
955static int proxy_parse_tcpka_intvl(char **args, int section, struct proxy *proxy,
Willy Tarreau01825162021-03-09 09:53:46 +0100956 const struct proxy *defpx, const char *file, int line,
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900957 char **err)
958{
959 int retval;
960 const char *res;
961 unsigned int tcpka_intvl;
962
963 retval = 0;
964
965 if (*args[1] == 0) {
966 memprintf(err, "'%s' expects an integer value", args[0]);
967 return -1;
968 }
969 res = parse_time_err(args[1], &tcpka_intvl, TIME_UNIT_S);
970 if (res == PARSE_TIME_OVER) {
971 memprintf(err, "timer overflow in argument '%s' to '%s' (maximum value is 2147483647 ms or ~24.8 days)",
972 args[1], args[0]);
973 return -1;
974 }
975 else if (res == PARSE_TIME_UNDER) {
976 memprintf(err, "timer underflow in argument '%s' to '%s' (minimum non-null value is 1 ms)",
977 args[1], args[0]);
978 return -1;
979 }
980 else if (res) {
981 memprintf(err, "unexpected character '%c' in argument to <%s>.\n", *res, args[0]);
982 return -1;
983 }
984
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100985 if (strcmp(args[0], "clitcpka-intvl") == 0) {
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900986 if (!(proxy->cap & PR_CAP_FE)) {
987 memprintf(err, "%s will be ignored because %s '%s' has no frontend capability",
988 args[0], proxy_type_str(proxy), proxy->id);
989 retval = 1;
990 }
991 proxy->clitcpka_intvl = tcpka_intvl;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100992 } else if (strcmp(args[0], "srvtcpka-intvl") == 0) {
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900993 if (!(proxy->cap & PR_CAP_BE)) {
994 memprintf(err, "%s will be ignored because %s '%s' has no backend capability",
995 args[0], proxy_type_str(proxy), proxy->id);
996 retval = 1;
997 }
998 proxy->srvtcpka_intvl = tcpka_intvl;
999 } else {
1000 /* unreachable */
1001 memprintf(err, "'%s': unknown keyword", args[0]);
1002 return -1;
1003 }
1004
1005 return retval;
1006}
Willy Tarreau52543212020-07-09 05:58:51 +02001007#endif
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +09001008
Willy Tarreau0a0f6a72021-02-12 13:52:11 +01001009/* This function inserts proxy <px> into the tree of known proxies (regular
1010 * ones or defaults depending on px->cap & PR_CAP_DEF). The proxy's name is
1011 * used as the storing key so it must already have been initialized.
Willy Tarreauf79d9502014-03-15 07:22:35 +01001012 */
1013void proxy_store_name(struct proxy *px)
1014{
Willy Tarreau0a0f6a72021-02-12 13:52:11 +01001015 struct eb_root *root = (px->cap & PR_CAP_DEF) ? &defproxy_by_name : &proxy_by_name;
1016
Willy Tarreauf79d9502014-03-15 07:22:35 +01001017 px->conf.by_name.key = px->id;
Willy Tarreau0a0f6a72021-02-12 13:52:11 +01001018 ebis_insert(root, &px->conf.by_name);
Willy Tarreauf79d9502014-03-15 07:22:35 +01001019}
1020
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001021/* Returns a pointer to the first proxy matching capabilities <cap> and id
1022 * <id>. NULL is returned if no match is found. If <table> is non-zero, it
1023 * only considers proxies having a table.
Willy Tarreaubc216c42011-08-02 11:25:54 +02001024 */
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001025struct proxy *proxy_find_by_id(int id, int cap, int table)
Willy Tarreau9e0bb102015-05-26 11:24:42 +02001026{
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001027 struct eb32_node *n;
Willy Tarreaubc216c42011-08-02 11:25:54 +02001028
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001029 for (n = eb32_lookup(&used_proxy_id, id); n; n = eb32_next(n)) {
1030 struct proxy *px = container_of(n, struct proxy, conf.id);
Willy Tarreaucfd837f2014-03-15 07:43:51 +01001031
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001032 if (px->uuid != id)
1033 break;
Alex Williams96532db2009-11-01 21:27:13 -05001034
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001035 if ((px->cap & cap) != cap)
1036 continue;
Alex Williams96532db2009-11-01 21:27:13 -05001037
Frédéric Lécaille1b8e68e2019-03-14 07:07:41 +01001038 if (table && (!px->table || !px->table->size))
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001039 continue;
Willy Tarreaucfd837f2014-03-15 07:43:51 +01001040
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001041 return px;
1042 }
1043 return NULL;
1044}
Willy Tarreaucfd837f2014-03-15 07:43:51 +01001045
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001046/* Returns a pointer to the first proxy matching either name <name>, or id
1047 * <name> if <name> begins with a '#'. NULL is returned if no match is found.
Willy Tarreau0a0f6a72021-02-12 13:52:11 +01001048 * If <table> is non-zero, it only considers proxies having a table. The search
1049 * is made into the regular proxies, unless <cap> has PR_CAP_DEF set in which
1050 * case it's searched into the defproxy tree.
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001051 */
1052struct proxy *proxy_find_by_name(const char *name, int cap, int table)
1053{
1054 struct proxy *curproxy;
Willy Tarreau9e0bb102015-05-26 11:24:42 +02001055
Willy Tarreau0a0f6a72021-02-12 13:52:11 +01001056 if (*name == '#' && !(cap & PR_CAP_DEF)) {
Willy Tarreau3c56a7d2015-05-26 15:25:32 +02001057 curproxy = proxy_find_by_id(atoi(name + 1), cap, table);
1058 if (curproxy)
Willy Tarreauc739aa82015-05-26 11:35:41 +02001059 return curproxy;
Alex Williams96532db2009-11-01 21:27:13 -05001060 }
Willy Tarreaucfd837f2014-03-15 07:43:51 +01001061 else {
Willy Tarreau0a0f6a72021-02-12 13:52:11 +01001062 struct eb_root *root;
Willy Tarreaucfd837f2014-03-15 07:43:51 +01001063 struct ebpt_node *node;
1064
Willy Tarreau0a0f6a72021-02-12 13:52:11 +01001065 root = (cap & PR_CAP_DEF) ? &defproxy_by_name : &proxy_by_name;
1066 for (node = ebis_lookup(root, name); node; node = ebpt_next(node)) {
Willy Tarreaucfd837f2014-03-15 07:43:51 +01001067 curproxy = container_of(node, struct proxy, conf.by_name);
Alex Williams96532db2009-11-01 21:27:13 -05001068
Willy Tarreaucfd837f2014-03-15 07:43:51 +01001069 if (strcmp(curproxy->id, name) != 0)
1070 break;
1071
1072 if ((curproxy->cap & cap) != cap)
1073 continue;
1074
Frédéric Lécaille1b8e68e2019-03-14 07:07:41 +01001075 if (table && (!curproxy->table || !curproxy->table->size))
Willy Tarreau9e0bb102015-05-26 11:24:42 +02001076 continue;
1077
Willy Tarreauc739aa82015-05-26 11:35:41 +02001078 return curproxy;
Willy Tarreaucfd837f2014-03-15 07:43:51 +01001079 }
1080 }
Willy Tarreauc739aa82015-05-26 11:35:41 +02001081 return NULL;
Alex Williams96532db2009-11-01 21:27:13 -05001082}
1083
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001084/* Finds the best match for a proxy with capabilities <cap>, name <name> and id
1085 * <id>. At most one of <id> or <name> may be different provided that <cap> is
1086 * valid. Either <id> or <name> may be left unspecified (0). The purpose is to
1087 * find a proxy based on some information from a previous configuration, across
1088 * reloads or during information exchange between peers.
1089 *
1090 * Names are looked up first if present, then IDs are compared if present. In
1091 * case of an inexact match whatever is forced in the configuration has
1092 * precedence in the following order :
1093 * - 1) forced ID (proves a renaming / change of proxy type)
1094 * - 2) proxy name+type (may indicate a move if ID differs)
1095 * - 3) automatic ID+type (may indicate a renaming)
1096 *
1097 * Depending on what is found, we can end up in the following situations :
1098 *
1099 * name id cap | possible causes
1100 * -------------+-----------------
1101 * -- -- -- | nothing found
1102 * -- -- ok | nothing found
1103 * -- ok -- | proxy deleted, ID points to next one
1104 * -- ok ok | proxy renamed, or deleted with ID pointing to next one
1105 * ok -- -- | proxy deleted, but other half with same name still here (before)
1106 * ok -- ok | proxy's ID changed (proxy moved in the config file)
1107 * ok ok -- | proxy deleted, but other half with same name still here (after)
1108 * ok ok ok | perfect match
1109 *
1110 * Upon return if <diff> is not NULL, it is zeroed then filled with up to 3 bits :
Baptiste Assmann8a027cc2015-07-03 11:03:33 +02001111 * - PR_FBM_MISMATCH_ID : proxy was found but ID differs
1112 * (and ID was not zero)
1113 * - PR_FBM_MISMATCH_NAME : proxy was found by ID but name differs
1114 * (and name was not NULL)
1115 * - PR_FBM_MISMATCH_PROXYTYPE : a proxy of different type was found with
1116 * the same name and/or id
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001117 *
1118 * Only a valid proxy is returned. If capabilities do not match, NULL is
1119 * returned. The caller can check <diff> to report detailed warnings / errors,
1120 * and decide whether or not to use what was found.
1121 */
1122struct proxy *proxy_find_best_match(int cap, const char *name, int id, int *diff)
1123{
1124 struct proxy *byname;
1125 struct proxy *byid;
1126
1127 if (!name && !id)
1128 return NULL;
1129
1130 if (diff)
1131 *diff = 0;
1132
1133 byname = byid = NULL;
1134
1135 if (name) {
1136 byname = proxy_find_by_name(name, cap, 0);
1137 if (byname && (!id || byname->uuid == id))
1138 return byname;
1139 }
1140
Joseph Herlant59dd2952018-11-15 11:46:55 -08001141 /* remaining possibilities :
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001142 * - name not set
1143 * - name set but not found
1144 * - name found, but ID doesn't match.
1145 */
1146 if (id) {
1147 byid = proxy_find_by_id(id, cap, 0);
1148 if (byid) {
1149 if (byname) {
1150 /* id+type found, name+type found, but not all 3.
1151 * ID wins only if forced, otherwise name wins.
1152 */
1153 if (byid->options & PR_O_FORCED_ID) {
1154 if (diff)
Baptiste Assmann8a027cc2015-07-03 11:03:33 +02001155 *diff |= PR_FBM_MISMATCH_NAME;
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001156 return byid;
1157 }
1158 else {
1159 if (diff)
Baptiste Assmann8a027cc2015-07-03 11:03:33 +02001160 *diff |= PR_FBM_MISMATCH_ID;
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001161 return byname;
1162 }
1163 }
1164
Joseph Herlant59dd2952018-11-15 11:46:55 -08001165 /* remaining possibilities :
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001166 * - name not set
1167 * - name set but not found
1168 */
1169 if (name && diff)
Baptiste Assmann8a027cc2015-07-03 11:03:33 +02001170 *diff |= PR_FBM_MISMATCH_NAME;
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001171 return byid;
1172 }
1173
1174 /* ID not found */
1175 if (byname) {
1176 if (diff)
Baptiste Assmann8a027cc2015-07-03 11:03:33 +02001177 *diff |= PR_FBM_MISMATCH_ID;
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001178 return byname;
1179 }
1180 }
1181
Joseph Herlant59dd2952018-11-15 11:46:55 -08001182 /* All remaining possibilities will lead to NULL. If we can report more
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001183 * detailed information to the caller about changed types and/or name,
1184 * we'll do it. For example, we could detect that "listen foo" was
1185 * split into "frontend foo_ft" and "backend foo_bk" if IDs are forced.
1186 * - name not set, ID not found
1187 * - name not found, ID not set
1188 * - name not found, ID not found
1189 */
1190 if (!diff)
1191 return NULL;
1192
1193 if (name) {
1194 byname = proxy_find_by_name(name, 0, 0);
1195 if (byname && (!id || byname->uuid == id))
Baptiste Assmann8a027cc2015-07-03 11:03:33 +02001196 *diff |= PR_FBM_MISMATCH_PROXYTYPE;
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001197 }
1198
1199 if (id) {
1200 byid = proxy_find_by_id(id, 0, 0);
1201 if (byid) {
1202 if (!name)
Baptiste Assmann8a027cc2015-07-03 11:03:33 +02001203 *diff |= PR_FBM_MISMATCH_PROXYTYPE; /* only type changed */
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001204 else if (byid->options & PR_O_FORCED_ID)
Baptiste Assmann8a027cc2015-07-03 11:03:33 +02001205 *diff |= PR_FBM_MISMATCH_NAME | PR_FBM_MISMATCH_PROXYTYPE; /* name and type changed */
Willy Tarreaueb3e3482015-05-27 16:46:26 +02001206 /* otherwise it's a different proxy that was returned */
1207 }
1208 }
1209 return NULL;
1210}
1211
Willy Tarreaubaaee002006-06-26 02:48:02 +02001212/*
Krzysztof Piotr Oledzkic8b16fc2008-02-18 01:26:35 +01001213 * This function finds a server with matching name within selected proxy.
1214 * It also checks if there are more matching servers with
1215 * requested name as this often leads into unexpected situations.
1216 */
1217
1218struct server *findserver(const struct proxy *px, const char *name) {
1219
1220 struct server *cursrv, *target = NULL;
1221
1222 if (!px)
1223 return NULL;
1224
1225 for (cursrv = px->srv; cursrv; cursrv = cursrv->next) {
Tim Duesterhuse5ff1412021-01-02 22:31:53 +01001226 if (strcmp(cursrv->id, name) != 0)
Krzysztof Piotr Oledzkic8b16fc2008-02-18 01:26:35 +01001227 continue;
1228
1229 if (!target) {
1230 target = cursrv;
1231 continue;
1232 }
1233
Christopher Faulet767a84b2017-11-24 16:50:31 +01001234 ha_alert("Refusing to use duplicated server '%s' found in proxy: %s!\n",
1235 name, px->id);
Krzysztof Piotr Oledzkic8b16fc2008-02-18 01:26:35 +01001236
1237 return NULL;
1238 }
1239
1240 return target;
1241}
1242
Willy Tarreauff01a212009-03-15 13:46:16 +01001243/* This function checks that the designated proxy has no http directives
1244 * enabled. It will output a warning if there are, and will fix some of them.
1245 * It returns the number of fatal errors encountered. This should be called
1246 * at the end of the configuration parsing if the proxy is not in http mode.
1247 * The <file> argument is used to construct the error message.
1248 */
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001249int proxy_cfg_ensure_no_http(struct proxy *curproxy)
Willy Tarreauff01a212009-03-15 13:46:16 +01001250{
1251 if (curproxy->cookie_name != NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001252 ha_warning("config : cookie will be ignored for %s '%s' (needs 'mode http').\n",
1253 proxy_type_str(curproxy), curproxy->id);
Willy Tarreauff01a212009-03-15 13:46:16 +01001254 }
Willy Tarreauff01a212009-03-15 13:46:16 +01001255 if (curproxy->monitor_uri != NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001256 ha_warning("config : monitor-uri 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 Tarreauf3e49f92009-10-03 12:21:20 +02001259 if (curproxy->lbprm.algo & BE_LB_NEED_HTTP) {
Willy Tarreauff01a212009-03-15 13:46:16 +01001260 curproxy->lbprm.algo &= ~BE_LB_ALGO;
1261 curproxy->lbprm.algo |= BE_LB_ALGO_RR;
Christopher Faulet767a84b2017-11-24 16:50:31 +01001262 ha_warning("config : Layer 7 hash not possible for %s '%s' (needs 'mode http'). Falling back to round robin.\n",
1263 proxy_type_str(curproxy), curproxy->id);
Willy Tarreauff01a212009-03-15 13:46:16 +01001264 }
Willy Tarreau17804162009-11-09 21:27:51 +01001265 if (curproxy->to_log & (LW_REQ | LW_RESP)) {
1266 curproxy->to_log &= ~(LW_REQ | LW_RESP);
Christopher Faulet767a84b2017-11-24 16:50:31 +01001267 ha_warning("parsing [%s:%d] : HTTP log/header format not usable with %s '%s' (needs 'mode http').\n",
1268 curproxy->conf.lfs_file, curproxy->conf.lfs_line,
1269 proxy_type_str(curproxy), curproxy->id);
Willy Tarreau17804162009-11-09 21:27:51 +01001270 }
Willy Tarreau62a61232013-04-12 18:13:46 +02001271 if (curproxy->conf.logformat_string == default_http_log_format ||
1272 curproxy->conf.logformat_string == clf_http_log_format) {
1273 /* Note: we don't change the directive's file:line number */
1274 curproxy->conf.logformat_string = default_tcp_log_format;
Christopher Faulet767a84b2017-11-24 16:50:31 +01001275 ha_warning("parsing [%s:%d] : 'option httplog' not usable with %s '%s' (needs 'mode http'). Falling back to 'option tcplog'.\n",
1276 curproxy->conf.lfs_file, curproxy->conf.lfs_line,
1277 proxy_type_str(curproxy), curproxy->id);
Willy Tarreau196729e2012-05-31 19:30:26 +02001278 }
1279
Willy Tarreauff01a212009-03-15 13:46:16 +01001280 return 0;
1281}
1282
Willy Tarreau237250c2011-07-29 01:49:03 +02001283/* Perform the most basic initialization of a proxy :
1284 * memset(), list_init(*), reset_timeouts(*).
Willy Tarreaub249e842011-09-07 18:41:08 +02001285 * Any new proxy or peer should be initialized via this function.
Willy Tarreau237250c2011-07-29 01:49:03 +02001286 */
1287void init_new_proxy(struct proxy *p)
1288{
1289 memset(p, 0, sizeof(struct proxy));
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001290 p->obj_type = OBJ_TYPE_PROXY;
Patrick Hemmer0355dab2018-05-11 12:52:31 -04001291 p->pendconns = EB_ROOT;
Willy Tarreau237250c2011-07-29 01:49:03 +02001292 LIST_INIT(&p->acl);
1293 LIST_INIT(&p->http_req_rules);
Willy Tarreaue365c0b2013-06-11 16:06:12 +02001294 LIST_INIT(&p->http_res_rules);
Christopher Faulet6d0c3df2020-01-22 09:26:35 +01001295 LIST_INIT(&p->http_after_res_rules);
Willy Tarreau237250c2011-07-29 01:49:03 +02001296 LIST_INIT(&p->redirect_rules);
1297 LIST_INIT(&p->mon_fail_cond);
1298 LIST_INIT(&p->switching_rules);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001299 LIST_INIT(&p->server_rules);
Willy Tarreau237250c2011-07-29 01:49:03 +02001300 LIST_INIT(&p->persist_rules);
1301 LIST_INIT(&p->sticking_rules);
1302 LIST_INIT(&p->storersp_rules);
1303 LIST_INIT(&p->tcp_req.inspect_rules);
1304 LIST_INIT(&p->tcp_rep.inspect_rules);
1305 LIST_INIT(&p->tcp_req.l4_rules);
Willy Tarreau620408f2016-10-21 16:37:51 +02001306 LIST_INIT(&p->tcp_req.l5_rules);
Olivier Houchard859dc802019-08-08 15:47:21 +02001307 MT_LIST_INIT(&p->listener_queue);
William Lallemand0f99e342011-10-12 17:50:54 +02001308 LIST_INIT(&p->logsrvs);
William Lallemand723b73a2012-02-08 16:37:49 +01001309 LIST_INIT(&p->logformat);
Dragan Dosen0b85ece2015-09-25 19:17:44 +02001310 LIST_INIT(&p->logformat_sd);
William Lallemanda73203e2012-03-12 12:48:57 +01001311 LIST_INIT(&p->format_unique_id);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001312 LIST_INIT(&p->conf.bind);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001313 LIST_INIT(&p->conf.listeners);
Christopher Faulet76edc0f2020-01-13 15:52:01 +01001314 LIST_INIT(&p->conf.errors);
Willy Tarreaua4312fa2013-04-02 16:34:32 +02001315 LIST_INIT(&p->conf.args.list);
Christopher Faulet443ea1a2016-02-04 13:40:26 +01001316 LIST_INIT(&p->filter_configs);
Christopher Faulet7a1e2e12020-04-02 18:05:11 +02001317 LIST_INIT(&p->tcpcheck_rules.preset_vars);
Willy Tarreau237250c2011-07-29 01:49:03 +02001318
Willy Tarreau3b06eae2021-02-12 09:15:16 +01001319 p->defsrv.id = "default-server";
1320 p->conf.used_listener_id = EB_ROOT;
1321 p->conf.used_server_id = EB_ROOT;
1322 p->used_server_addr = EB_ROOT_UNIQUE;
1323
Willy Tarreau237250c2011-07-29 01:49:03 +02001324 /* Timeouts are defined as -1 */
1325 proxy_reset_timeouts(p);
1326 p->tcp_rep.inspect_delay = TICK_ETERNITY;
Willy Tarreau050536d2012-10-04 08:47:34 +02001327
1328 /* initial uuid is unassigned (-1) */
1329 p->uuid = -1;
Christopher Fauletff8abcd2017-06-02 15:33:24 +02001330
Olivier Houcharda254a372019-04-05 15:30:12 +02001331 /* Default to only allow L4 retries */
1332 p->retry_type = PR_RE_CONN_FAILED;
1333
Amaury Denoyelle7f8f6cb2020-11-10 14:24:31 +01001334 p->extra_counters_fe = NULL;
1335 p->extra_counters_be = NULL;
1336
Willy Tarreauac66d6b2020-10-20 17:24:27 +02001337 HA_RWLOCK_INIT(&p->lock);
Willy Tarreau237250c2011-07-29 01:49:03 +02001338}
1339
Willy Tarreau144289b2021-02-12 08:19:01 +01001340/* Preset default settings onto proxy <defproxy>. */
1341void proxy_preset_defaults(struct proxy *defproxy)
1342{
1343 defproxy->mode = PR_MODE_TCP;
1344 defproxy->disabled = 0;
Amaury Denoyelle6f26fae2021-03-24 10:49:34 +01001345 if (!(defproxy->cap & PR_CAP_LUA)) {
1346 defproxy->maxconn = cfg_maxpconn;
1347 defproxy->conn_retries = CONN_RETRIES;
1348 }
Willy Tarreau144289b2021-02-12 08:19:01 +01001349 defproxy->redispatch_after = 0;
1350 defproxy->options = PR_O_REUSE_SAFE;
Amaury Denoyelle6f26fae2021-03-24 10:49:34 +01001351 if (defproxy->cap & PR_CAP_LUA)
1352 defproxy->options2 |= PR_O2_INDEPSTR;
Willy Tarreau144289b2021-02-12 08:19:01 +01001353 defproxy->max_out_conns = MAX_SRV_LIST;
1354
1355 defproxy->defsrv.check.inter = DEF_CHKINTR;
1356 defproxy->defsrv.check.fastinter = 0;
1357 defproxy->defsrv.check.downinter = 0;
1358 defproxy->defsrv.agent.inter = DEF_CHKINTR;
1359 defproxy->defsrv.agent.fastinter = 0;
1360 defproxy->defsrv.agent.downinter = 0;
1361 defproxy->defsrv.check.rise = DEF_RISETIME;
1362 defproxy->defsrv.check.fall = DEF_FALLTIME;
1363 defproxy->defsrv.agent.rise = DEF_AGENT_RISETIME;
1364 defproxy->defsrv.agent.fall = DEF_AGENT_FALLTIME;
1365 defproxy->defsrv.check.port = 0;
1366 defproxy->defsrv.agent.port = 0;
1367 defproxy->defsrv.maxqueue = 0;
1368 defproxy->defsrv.minconn = 0;
1369 defproxy->defsrv.maxconn = 0;
1370 defproxy->defsrv.max_reuse = -1;
1371 defproxy->defsrv.max_idle_conns = -1;
1372 defproxy->defsrv.pool_purge_delay = 5000;
1373 defproxy->defsrv.slowstart = 0;
1374 defproxy->defsrv.onerror = DEF_HANA_ONERR;
1375 defproxy->defsrv.consecutive_errors_limit = DEF_HANA_ERRLIMIT;
1376 defproxy->defsrv.uweight = defproxy->defsrv.iweight = 1;
1377
1378 defproxy->email_alert.level = LOG_ALERT;
1379 defproxy->load_server_state_from_file = PR_SRV_STATE_FILE_UNSPEC;
1380#if defined(USE_QUIC)
1381 quic_transport_params_init(&defproxy->defsrv.quic_params, 0);
1382#endif
Amaury Denoyelle6f26fae2021-03-24 10:49:34 +01001383
1384 if (defproxy->cap & PR_CAP_LUA)
1385 defproxy->timeout.connect = 5000;
Willy Tarreau144289b2021-02-12 08:19:01 +01001386}
1387
Willy Tarreaua3320a02021-02-12 10:38:49 +01001388/* Frees all dynamic settings allocated on a default proxy that's about to be
1389 * destroyed. This is a subset of the complete proxy deinit code, but these
1390 * should probably be merged ultimately. Note that most of the fields are not
1391 * even reset, so extreme care is required here, and calling
1392 * proxy_preset_defaults() afterwards would be safer.
1393 */
1394void proxy_free_defaults(struct proxy *defproxy)
1395{
Willy Tarreau61cfdf42021-02-20 10:46:51 +01001396 ha_free(&defproxy->id);
1397 ha_free(&defproxy->conf.file);
1398 ha_free(&defproxy->check_command);
1399 ha_free(&defproxy->check_path);
1400 ha_free(&defproxy->cookie_name);
1401 ha_free(&defproxy->rdp_cookie_name);
1402 ha_free(&defproxy->dyncookie_key);
1403 ha_free(&defproxy->cookie_domain);
1404 ha_free(&defproxy->cookie_attrs);
1405 ha_free(&defproxy->lbprm.arg_str);
1406 ha_free(&defproxy->capture_name);
1407 ha_free(&defproxy->monitor_uri);
1408 ha_free(&defproxy->defbe.name);
1409 ha_free(&defproxy->conn_src.iface_name);
1410 ha_free(&defproxy->fwdfor_hdr_name); defproxy->fwdfor_hdr_len = 0;
1411 ha_free(&defproxy->orgto_hdr_name); defproxy->orgto_hdr_len = 0;
1412 ha_free(&defproxy->server_id_hdr_name); defproxy->server_id_hdr_len = 0;
Willy Tarreaua3320a02021-02-12 10:38:49 +01001413
1414 if (defproxy->conf.logformat_string != default_http_log_format &&
1415 defproxy->conf.logformat_string != default_tcp_log_format &&
Willy Tarreau818ec782021-02-12 10:48:53 +01001416 defproxy->conf.logformat_string != clf_http_log_format) {
Willy Tarreau61cfdf42021-02-20 10:46:51 +01001417 ha_free(&defproxy->conf.logformat_string);
Willy Tarreau818ec782021-02-12 10:48:53 +01001418 }
Willy Tarreaua3320a02021-02-12 10:38:49 +01001419
Willy Tarreau61cfdf42021-02-20 10:46:51 +01001420 if (defproxy->conf.logformat_sd_string != default_rfc5424_sd_log_format)
1421 ha_free(&defproxy->conf.logformat_sd_string);
Willy Tarreaua3320a02021-02-12 10:38:49 +01001422
Willy Tarreau61cfdf42021-02-20 10:46:51 +01001423 ha_free(&defproxy->conf.uniqueid_format_string);
1424 ha_free(&defproxy->conf.lfs_file);
1425 ha_free(&defproxy->conf.lfsd_file);
1426 ha_free(&defproxy->conf.uif_file);
Willy Tarreaua3320a02021-02-12 10:38:49 +01001427 chunk_destroy(&defproxy->log_tag);
1428
1429 free_email_alert(defproxy);
1430 proxy_release_conf_errors(defproxy);
1431 deinit_proxy_tcpcheck(defproxy);
1432
1433 /* FIXME: we cannot free uri_auth because it might already be used by
1434 * another proxy (legacy code for stats URI ...). Refcount anyone ?
1435 */
1436}
1437
Willy Tarreau0a0f6a72021-02-12 13:52:11 +01001438/* delete a defproxy from the tree if still in it, frees its content and its
1439 * storage. Nothing is done if <px> is NULL or if it doesn't have PR_CAP_DEF
1440 * set, allowing to pass it the direct result of a lookup function.
1441 */
1442void proxy_destroy_defaults(struct proxy *px)
1443{
1444 if (!px)
1445 return;
1446 if (!(px->cap & PR_CAP_DEF))
1447 return;
1448 ebpt_delete(&px->conf.by_name);
1449 proxy_free_defaults(px);
1450 free(px);
1451}
1452
Willy Tarreaue90904d2021-02-12 14:08:31 +01001453void proxy_destroy_all_defaults()
1454{
1455 struct ebpt_node *n;
1456
1457 while ((n = ebpt_first(&defproxy_by_name))) {
1458 struct proxy *px = container_of(n, struct proxy, conf.by_name);
1459 BUG_ON(!(px->cap & PR_CAP_DEF));
1460 proxy_destroy_defaults(px);
1461 }
1462}
1463
Amaury Denoyelle476b9ad2021-03-23 17:27:05 +01001464/* Allocates a new proxy <name> of type <cap>.
1465 * Returns the proxy instance on success. On error, NULL is returned.
Willy Tarreau76838932021-02-12 08:49:47 +01001466 */
Amaury Denoyelle476b9ad2021-03-23 17:27:05 +01001467struct proxy *alloc_new_proxy(const char *name, unsigned int cap, char **errmsg)
Willy Tarreau76838932021-02-12 08:49:47 +01001468{
Willy Tarreau76838932021-02-12 08:49:47 +01001469 struct proxy *curproxy;
Willy Tarreau76838932021-02-12 08:49:47 +01001470
1471 if ((curproxy = calloc(1, sizeof(*curproxy))) == NULL) {
1472 memprintf(errmsg, "proxy '%s': out of memory", name);
1473 goto fail;
1474 }
1475
1476 init_new_proxy(curproxy);
Willy Tarreau76838932021-02-12 08:49:47 +01001477 curproxy->last_change = now.tv_sec;
1478 curproxy->id = strdup(name);
1479 curproxy->cap = cap;
Amaury Denoyelle6f26fae2021-03-24 10:49:34 +01001480
1481 if (!(cap & PR_CAP_LUA))
1482 proxy_store_name(curproxy);
Willy Tarreau76838932021-02-12 08:49:47 +01001483
Amaury Denoyelle476b9ad2021-03-23 17:27:05 +01001484 done:
1485 return curproxy;
1486
1487 fail:
1488 /* Note: in case of fatal error here, we WILL make valgrind unhappy,
1489 * but its not worth trying to unroll everything here just before
1490 * quitting.
1491 */
1492 free(curproxy);
1493 return NULL;
1494}
1495
1496/* Copy the proxy settings from <defproxy> to <curproxy>.
1497 * Returns 0 on success.
1498 * Returns 1 on error. <errmsg> will be allocated with an error description.
1499 */
1500static int proxy_defproxy_cpy(struct proxy *curproxy, const struct proxy *defproxy,
1501 char **errmsg)
1502{
1503 struct logsrv *tmplogsrv;
1504 char *tmpmsg = NULL;
Willy Tarreau3b06eae2021-02-12 09:15:16 +01001505
1506 /* set default values from the specified default proxy */
Willy Tarreau76838932021-02-12 08:49:47 +01001507 memcpy(&curproxy->defsrv, &defproxy->defsrv, sizeof(curproxy->defsrv));
Willy Tarreau76838932021-02-12 08:49:47 +01001508
1509 curproxy->disabled = defproxy->disabled;
1510 curproxy->options = defproxy->options;
1511 curproxy->options2 = defproxy->options2;
1512 curproxy->no_options = defproxy->no_options;
1513 curproxy->no_options2 = defproxy->no_options2;
1514 curproxy->bind_proc = defproxy->bind_proc;
Christopher Faulet5d1def62021-02-26 09:19:15 +01001515 curproxy->except_xff_net = defproxy->except_xff_net;
1516 curproxy->except_xot_net = defproxy->except_xot_net;
Willy Tarreau76838932021-02-12 08:49:47 +01001517 curproxy->retry_type = defproxy->retry_type;
1518
1519 if (defproxy->fwdfor_hdr_len) {
1520 curproxy->fwdfor_hdr_len = defproxy->fwdfor_hdr_len;
1521 curproxy->fwdfor_hdr_name = strdup(defproxy->fwdfor_hdr_name);
1522 }
1523
1524 if (defproxy->orgto_hdr_len) {
1525 curproxy->orgto_hdr_len = defproxy->orgto_hdr_len;
1526 curproxy->orgto_hdr_name = strdup(defproxy->orgto_hdr_name);
1527 }
1528
1529 if (defproxy->server_id_hdr_len) {
1530 curproxy->server_id_hdr_len = defproxy->server_id_hdr_len;
1531 curproxy->server_id_hdr_name = strdup(defproxy->server_id_hdr_name);
1532 }
1533
1534 /* initialize error relocations */
1535 if (!proxy_dup_default_conf_errors(curproxy, defproxy, &tmpmsg)) {
1536 memprintf(errmsg, "proxy '%s' : %s", curproxy->id, tmpmsg);
Amaury Denoyelle476b9ad2021-03-23 17:27:05 +01001537 free(tmpmsg);
1538 return 1;
Willy Tarreau76838932021-02-12 08:49:47 +01001539 }
1540
1541 if (curproxy->cap & PR_CAP_FE) {
1542 curproxy->maxconn = defproxy->maxconn;
1543 curproxy->backlog = defproxy->backlog;
1544 curproxy->fe_sps_lim = defproxy->fe_sps_lim;
1545
1546 curproxy->to_log = defproxy->to_log & ~LW_COOKIE & ~LW_REQHDR & ~ LW_RSPHDR;
1547 curproxy->max_out_conns = defproxy->max_out_conns;
1548
1549 curproxy->clitcpka_cnt = defproxy->clitcpka_cnt;
1550 curproxy->clitcpka_idle = defproxy->clitcpka_idle;
1551 curproxy->clitcpka_intvl = defproxy->clitcpka_intvl;
1552 }
1553
1554 if (curproxy->cap & PR_CAP_BE) {
1555 curproxy->lbprm.algo = defproxy->lbprm.algo;
1556 curproxy->lbprm.hash_balance_factor = defproxy->lbprm.hash_balance_factor;
1557 curproxy->fullconn = defproxy->fullconn;
1558 curproxy->conn_retries = defproxy->conn_retries;
1559 curproxy->redispatch_after = defproxy->redispatch_after;
1560 curproxy->max_ka_queue = defproxy->max_ka_queue;
1561
1562 curproxy->tcpcheck_rules.flags = (defproxy->tcpcheck_rules.flags & ~TCPCHK_RULES_UNUSED_RS);
1563 curproxy->tcpcheck_rules.list = defproxy->tcpcheck_rules.list;
1564 if (!LIST_ISEMPTY(&defproxy->tcpcheck_rules.preset_vars)) {
1565 if (!dup_tcpcheck_vars(&curproxy->tcpcheck_rules.preset_vars,
1566 &defproxy->tcpcheck_rules.preset_vars)) {
Amaury Denoyelle476b9ad2021-03-23 17:27:05 +01001567 memprintf(errmsg, "proxy '%s': failed to duplicate tcpcheck preset-vars", curproxy->id);
1568 return 1;
Willy Tarreau76838932021-02-12 08:49:47 +01001569 }
1570 }
1571
1572 curproxy->ck_opts = defproxy->ck_opts;
1573 if (defproxy->cookie_name)
1574 curproxy->cookie_name = strdup(defproxy->cookie_name);
1575 curproxy->cookie_len = defproxy->cookie_len;
1576
1577 if (defproxy->dyncookie_key)
1578 curproxy->dyncookie_key = strdup(defproxy->dyncookie_key);
1579 if (defproxy->cookie_domain)
1580 curproxy->cookie_domain = strdup(defproxy->cookie_domain);
1581
1582 if (defproxy->cookie_maxidle)
1583 curproxy->cookie_maxidle = defproxy->cookie_maxidle;
1584
1585 if (defproxy->cookie_maxlife)
1586 curproxy->cookie_maxlife = defproxy->cookie_maxlife;
1587
1588 if (defproxy->rdp_cookie_name)
1589 curproxy->rdp_cookie_name = strdup(defproxy->rdp_cookie_name);
1590 curproxy->rdp_cookie_len = defproxy->rdp_cookie_len;
1591
1592 if (defproxy->cookie_attrs)
1593 curproxy->cookie_attrs = strdup(defproxy->cookie_attrs);
1594
1595 if (defproxy->lbprm.arg_str)
1596 curproxy->lbprm.arg_str = strdup(defproxy->lbprm.arg_str);
1597 curproxy->lbprm.arg_len = defproxy->lbprm.arg_len;
1598 curproxy->lbprm.arg_opt1 = defproxy->lbprm.arg_opt1;
1599 curproxy->lbprm.arg_opt2 = defproxy->lbprm.arg_opt2;
1600 curproxy->lbprm.arg_opt3 = defproxy->lbprm.arg_opt3;
1601
1602 if (defproxy->conn_src.iface_name)
1603 curproxy->conn_src.iface_name = strdup(defproxy->conn_src.iface_name);
1604 curproxy->conn_src.iface_len = defproxy->conn_src.iface_len;
1605 curproxy->conn_src.opts = defproxy->conn_src.opts;
1606#if defined(CONFIG_HAP_TRANSPARENT)
1607 curproxy->conn_src.tproxy_addr = defproxy->conn_src.tproxy_addr;
1608#endif
1609 curproxy->load_server_state_from_file = defproxy->load_server_state_from_file;
1610
1611 curproxy->srvtcpka_cnt = defproxy->srvtcpka_cnt;
1612 curproxy->srvtcpka_idle = defproxy->srvtcpka_idle;
1613 curproxy->srvtcpka_intvl = defproxy->srvtcpka_intvl;
1614 }
1615
1616 if (curproxy->cap & PR_CAP_FE) {
1617 if (defproxy->capture_name)
1618 curproxy->capture_name = strdup(defproxy->capture_name);
1619 curproxy->capture_namelen = defproxy->capture_namelen;
1620 curproxy->capture_len = defproxy->capture_len;
1621 }
1622
1623 if (curproxy->cap & PR_CAP_FE) {
1624 curproxy->timeout.client = defproxy->timeout.client;
1625 curproxy->timeout.clientfin = defproxy->timeout.clientfin;
1626 curproxy->timeout.tarpit = defproxy->timeout.tarpit;
1627 curproxy->timeout.httpreq = defproxy->timeout.httpreq;
1628 curproxy->timeout.httpka = defproxy->timeout.httpka;
1629 if (defproxy->monitor_uri)
1630 curproxy->monitor_uri = strdup(defproxy->monitor_uri);
1631 curproxy->monitor_uri_len = defproxy->monitor_uri_len;
1632 if (defproxy->defbe.name)
1633 curproxy->defbe.name = strdup(defproxy->defbe.name);
1634
1635 /* get either a pointer to the logformat string or a copy of it */
1636 curproxy->conf.logformat_string = defproxy->conf.logformat_string;
1637 if (curproxy->conf.logformat_string &&
1638 curproxy->conf.logformat_string != default_http_log_format &&
1639 curproxy->conf.logformat_string != default_tcp_log_format &&
1640 curproxy->conf.logformat_string != clf_http_log_format)
1641 curproxy->conf.logformat_string = strdup(curproxy->conf.logformat_string);
1642
1643 if (defproxy->conf.lfs_file) {
1644 curproxy->conf.lfs_file = strdup(defproxy->conf.lfs_file);
1645 curproxy->conf.lfs_line = defproxy->conf.lfs_line;
1646 }
1647
1648 /* get either a pointer to the logformat string for RFC5424 structured-data or a copy of it */
1649 curproxy->conf.logformat_sd_string = defproxy->conf.logformat_sd_string;
1650 if (curproxy->conf.logformat_sd_string &&
1651 curproxy->conf.logformat_sd_string != default_rfc5424_sd_log_format)
1652 curproxy->conf.logformat_sd_string = strdup(curproxy->conf.logformat_sd_string);
1653
1654 if (defproxy->conf.lfsd_file) {
1655 curproxy->conf.lfsd_file = strdup(defproxy->conf.lfsd_file);
1656 curproxy->conf.lfsd_line = defproxy->conf.lfsd_line;
1657 }
1658 }
1659
1660 if (curproxy->cap & PR_CAP_BE) {
1661 curproxy->timeout.connect = defproxy->timeout.connect;
1662 curproxy->timeout.server = defproxy->timeout.server;
1663 curproxy->timeout.serverfin = defproxy->timeout.serverfin;
1664 curproxy->timeout.check = defproxy->timeout.check;
1665 curproxy->timeout.queue = defproxy->timeout.queue;
1666 curproxy->timeout.tarpit = defproxy->timeout.tarpit;
1667 curproxy->timeout.httpreq = defproxy->timeout.httpreq;
1668 curproxy->timeout.httpka = defproxy->timeout.httpka;
1669 curproxy->timeout.tunnel = defproxy->timeout.tunnel;
1670 curproxy->conn_src.source_addr = defproxy->conn_src.source_addr;
1671 }
1672
1673 curproxy->mode = defproxy->mode;
1674 curproxy->uri_auth = defproxy->uri_auth; /* for stats */
1675
1676 /* copy default logsrvs to curproxy */
1677 list_for_each_entry(tmplogsrv, &defproxy->logsrvs, list) {
1678 struct logsrv *node = malloc(sizeof(*node));
1679
1680 if (!node) {
Amaury Denoyelle476b9ad2021-03-23 17:27:05 +01001681 memprintf(errmsg, "proxy '%s': out of memory", curproxy->id);
1682 return 1;
Willy Tarreau76838932021-02-12 08:49:47 +01001683 }
1684 memcpy(node, tmplogsrv, sizeof(struct logsrv));
1685 node->ref = tmplogsrv->ref;
1686 LIST_INIT(&node->list);
Willy Tarreau2b718102021-04-21 07:32:39 +02001687 LIST_APPEND(&curproxy->logsrvs, &node->list);
Willy Tarreau76838932021-02-12 08:49:47 +01001688 }
1689
1690 curproxy->conf.uniqueid_format_string = defproxy->conf.uniqueid_format_string;
1691 if (curproxy->conf.uniqueid_format_string)
1692 curproxy->conf.uniqueid_format_string = strdup(curproxy->conf.uniqueid_format_string);
1693
1694 chunk_dup(&curproxy->log_tag, &defproxy->log_tag);
1695
1696 if (defproxy->conf.uif_file) {
1697 curproxy->conf.uif_file = strdup(defproxy->conf.uif_file);
1698 curproxy->conf.uif_line = defproxy->conf.uif_line;
1699 }
1700
1701 /* copy default header unique id */
1702 if (isttest(defproxy->header_unique_id)) {
1703 const struct ist copy = istdup(defproxy->header_unique_id);
1704
1705 if (!isttest(copy)) {
Amaury Denoyelle476b9ad2021-03-23 17:27:05 +01001706 memprintf(errmsg, "proxy '%s': out of memory for unique-id-header", curproxy->id);
1707 return 1;
Willy Tarreau76838932021-02-12 08:49:47 +01001708 }
1709 curproxy->header_unique_id = copy;
1710 }
1711
1712 /* default compression options */
1713 if (defproxy->comp != NULL) {
1714 curproxy->comp = calloc(1, sizeof(*curproxy->comp));
1715 curproxy->comp->algos = defproxy->comp->algos;
1716 curproxy->comp->types = defproxy->comp->types;
1717 }
1718
1719 curproxy->grace = defproxy->grace;
Willy Tarreau76838932021-02-12 08:49:47 +01001720
1721 if (defproxy->check_path)
1722 curproxy->check_path = strdup(defproxy->check_path);
1723 if (defproxy->check_command)
1724 curproxy->check_command = strdup(defproxy->check_command);
1725
1726 if (defproxy->email_alert.mailers.name)
1727 curproxy->email_alert.mailers.name = strdup(defproxy->email_alert.mailers.name);
1728 if (defproxy->email_alert.from)
1729 curproxy->email_alert.from = strdup(defproxy->email_alert.from);
1730 if (defproxy->email_alert.to)
1731 curproxy->email_alert.to = strdup(defproxy->email_alert.to);
1732 if (defproxy->email_alert.myhostname)
1733 curproxy->email_alert.myhostname = strdup(defproxy->email_alert.myhostname);
1734 curproxy->email_alert.level = defproxy->email_alert.level;
1735 curproxy->email_alert.set = defproxy->email_alert.set;
Willy Tarreau3b06eae2021-02-12 09:15:16 +01001736
Amaury Denoyelle476b9ad2021-03-23 17:27:05 +01001737 return 0;
1738}
1739
1740/* Allocates a new proxy <name> of type <cap> found at position <file:linenum>,
1741 * preset it from the defaults of <defproxy> and returns it. In case of error,
1742 * an alert is printed and NULL is returned.
1743 */
1744struct proxy *parse_new_proxy(const char *name, unsigned int cap,
1745 const char *file, int linenum,
1746 const struct proxy *defproxy)
1747{
1748 struct proxy *curproxy = NULL;
1749 char *errmsg;
1750
1751 if (!(curproxy = alloc_new_proxy(name, cap, &errmsg))) {
1752 ha_alert("parsing [%s:%d] : %s\n", file, linenum, errmsg);
1753 free(errmsg);
1754 return NULL;
1755 }
1756
1757 if (defproxy) {
1758 if (proxy_defproxy_cpy(curproxy, defproxy, &errmsg)) {
1759 ha_alert("parsing [%s:%d] : %s\n", file, linenum, errmsg);
1760 free(errmsg);
1761
1762 ha_free(&curproxy);
1763 return NULL;
1764 }
1765 }
1766 else {
1767 proxy_preset_defaults(curproxy);
1768 }
1769
1770 curproxy->conf.args.file = curproxy->conf.file = strdup(file);
1771 curproxy->conf.args.line = curproxy->conf.line = linenum;
1772
Willy Tarreau76838932021-02-12 08:49:47 +01001773 return curproxy;
Willy Tarreau76838932021-02-12 08:49:47 +01001774}
1775
Willy Tarreauacde1522020-10-07 16:31:39 +02001776/* to be called under the proxy lock after stopping some listeners. This will
1777 * automatically update the p->disabled flag after stopping the last one, and
1778 * will emit a log indicating the proxy's condition. The function is idempotent
1779 * so that it will not emit multiple logs; a proxy will be disabled only once.
1780 */
1781void proxy_cond_disable(struct proxy *p)
1782{
1783 if (p->disabled)
1784 return;
1785
1786 if (p->li_ready + p->li_paused > 0)
1787 return;
1788
1789 p->disabled = 1;
1790
1791 if (!(proc_mask(p->bind_proc) & pid_bit))
1792 goto silent;
1793
1794 /* Note: syslog proxies use their own loggers so while it's somewhat OK
1795 * to report them being stopped as a warning, we must not spam their log
1796 * servers which are in fact production servers. For other types (CLI,
1797 * peers, etc) we must not report them at all as they're not really on
1798 * the data plane but on the control plane.
1799 */
1800 if (p->mode == PR_MODE_TCP || p->mode == PR_MODE_HTTP || p->mode == PR_MODE_SYSLOG)
1801 ha_warning("Proxy %s stopped (cumulated conns: FE: %lld, BE: %lld).\n",
1802 p->id, p->fe_counters.cum_conn, p->be_counters.cum_conn);
1803
1804 if (p->mode == PR_MODE_TCP || p->mode == PR_MODE_HTTP)
1805 send_log(p, LOG_WARNING, "Proxy %s stopped (cumulated conns: FE: %lld, BE: %lld).\n",
1806 p->id, p->fe_counters.cum_conn, p->be_counters.cum_conn);
1807
1808 silent:
1809 if (p->table && p->table->size && p->table->sync_task)
1810 task_wakeup(p->table->sync_task, TASK_WOKEN_MSG);
1811
1812 if (p->task)
1813 task_wakeup(p->task, TASK_WOKEN_MSG);
1814}
1815
Krzysztof Piotr Oledzkic8b16fc2008-02-18 01:26:35 +01001816/*
Willy Tarreau918ff602011-07-25 16:33:49 +02001817 * This is the proxy management task. It enables proxies when there are enough
Willy Tarreau87b09662015-04-03 00:22:06 +02001818 * free streams, or stops them when the table is full. It is designed to be
Willy Tarreau918ff602011-07-25 16:33:49 +02001819 * called as a task which is woken up upon stopping or when rate limiting must
1820 * be enforced.
Willy Tarreaubaaee002006-06-26 02:48:02 +02001821 */
Willy Tarreau144f84a2021-03-02 16:09:26 +01001822struct task *manage_proxy(struct task *t, void *context, unsigned int state)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001823{
Olivier Houchard9f6af332018-05-25 14:04:04 +02001824 struct proxy *p = context;
Willy Tarreau918ff602011-07-25 16:33:49 +02001825 int next = TICK_ETERNITY;
Willy Tarreau79584222009-03-06 09:18:27 +01001826 unsigned int wait;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001827
Willy Tarreau918ff602011-07-25 16:33:49 +02001828 /* We should periodically try to enable listeners waiting for a
1829 * global resource here.
1830 */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001831
Willy Tarreau918ff602011-07-25 16:33:49 +02001832 /* first, let's check if we need to stop the proxy */
Willy Tarreauc3914d42020-09-24 08:39:22 +02001833 if (unlikely(stopping && !p->disabled)) {
Willy Tarreau918ff602011-07-25 16:33:49 +02001834 int t;
1835 t = tick_remain(now_ms, p->stop_time);
1836 if (t == 0) {
Willy Tarreau918ff602011-07-25 16:33:49 +02001837 stop_proxy(p);
1838 /* try to free more memory */
Willy Tarreaubafbe012017-11-24 17:34:44 +01001839 pool_gc(NULL);
Willy Tarreau918ff602011-07-25 16:33:49 +02001840 }
1841 else {
1842 next = tick_first(next, p->stop_time);
1843 }
1844 }
Willy Tarreauf3f8c702011-07-25 07:37:28 +02001845
Willy Tarreau3a925c12013-09-04 17:54:01 +02001846 /* If the proxy holds a stick table, we need to purge all unused
1847 * entries. These are all the ones in the table with ref_cnt == 0
1848 * and all the ones in the pool used to allocate new entries. Any
Willy Tarreau87b09662015-04-03 00:22:06 +02001849 * entry attached to an existing stream waiting for a store will
Willy Tarreau3a925c12013-09-04 17:54:01 +02001850 * be in neither list. Any entry being dumped will have ref_cnt > 0.
1851 * However we protect tables that are being synced to peers.
1852 */
Willy Tarreauc3914d42020-09-24 08:39:22 +02001853 if (unlikely(stopping && p->disabled && p->table && p->table->current)) {
Frédéric Lécaille1b8e68e2019-03-14 07:07:41 +01001854 if (!p->table->syncing) {
1855 stktable_trash_oldest(p->table, p->table->current);
Willy Tarreaubafbe012017-11-24 17:34:44 +01001856 pool_gc(NULL);
Willy Tarreau3a925c12013-09-04 17:54:01 +02001857 }
Frédéric Lécaille1b8e68e2019-03-14 07:07:41 +01001858 if (p->table->current) {
Willy Tarreau3a925c12013-09-04 17:54:01 +02001859 /* some entries still remain, let's recheck in one second */
1860 next = tick_first(next, tick_add(now_ms, 1000));
1861 }
1862 }
1863
Willy Tarreau918ff602011-07-25 16:33:49 +02001864 /* the rest below is just for frontends */
1865 if (!(p->cap & PR_CAP_FE))
1866 goto out;
Willy Tarreauf3f8c702011-07-25 07:37:28 +02001867
Willy Tarreau918ff602011-07-25 16:33:49 +02001868 /* check the various reasons we may find to block the frontend */
Willy Tarreau6b3bf732020-09-24 07:35:46 +02001869 if (unlikely(p->feconn >= p->maxconn))
Willy Tarreau918ff602011-07-25 16:33:49 +02001870 goto out;
Willy Tarreau3a7d2072009-03-05 23:48:25 +01001871
Willy Tarreau918ff602011-07-25 16:33:49 +02001872 if (p->fe_sps_lim &&
1873 (wait = next_event_delay(&p->fe_sess_per_sec, p->fe_sps_lim, 0))) {
1874 /* we're blocking because a limit was reached on the number of
1875 * requests/s on the frontend. We want to re-check ASAP, which
1876 * means in 1 ms before estimated expiration date, because the
1877 * timer will have settled down.
1878 */
1879 next = tick_first(next, tick_add(now_ms, wait));
1880 goto out;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001881 }
Willy Tarreau918ff602011-07-25 16:33:49 +02001882
1883 /* The proxy is not limited so we can re-enable any waiting listener */
Willy Tarreau241797a2019-12-10 14:10:52 +01001884 dequeue_proxy_listeners(p);
Willy Tarreau918ff602011-07-25 16:33:49 +02001885 out:
1886 t->expire = next;
1887 task_queue(t);
1888 return t;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001889}
1890
1891
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001892static int proxy_parse_hard_stop_after(char **args, int section_type, struct proxy *curpx,
Willy Tarreau01825162021-03-09 09:53:46 +01001893 const struct proxy *defpx, const char *file, int line,
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001894 char **err)
1895{
1896 const char *res;
1897
1898 if (!*args[1]) {
1899 memprintf(err, "'%s' expects <time> as argument.\n", args[0]);
1900 return -1;
1901 }
1902 res = parse_time_err(args[1], &global.hard_stop_after, TIME_UNIT_MS);
Willy Tarreau9faebe32019-06-07 19:00:37 +02001903 if (res == PARSE_TIME_OVER) {
1904 memprintf(err, "timer overflow in argument '%s' to '%s' (maximum value is 2147483647 ms or ~24.8 days)",
1905 args[1], args[0]);
1906 return -1;
1907 }
1908 else if (res == PARSE_TIME_UNDER) {
1909 memprintf(err, "timer underflow in argument '%s' to '%s' (minimum non-null value is 1 ms)",
1910 args[1], args[0]);
1911 return -1;
1912 }
1913 else if (res) {
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001914 memprintf(err, "unexpected character '%c' in argument to <%s>.\n", *res, args[0]);
1915 return -1;
1916 }
1917 return 0;
1918}
1919
Willy Tarreau144f84a2021-03-02 16:09:26 +01001920struct task *hard_stop(struct task *t, void *context, unsigned int state)
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001921{
1922 struct proxy *p;
1923 struct stream *s;
Willy Tarreau0d038252021-02-24 11:13:59 +01001924 int thr;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001925
1926 if (killed) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001927 ha_warning("Some tasks resisted to hard-stop, exiting now.\n");
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001928 send_log(NULL, LOG_WARNING, "Some tasks resisted to hard-stop, exiting now.\n");
Willy Tarreau7067b3a2019-06-02 11:11:29 +02001929 killed = 2;
Willy Tarreau0d038252021-02-24 11:13:59 +01001930 for (thr = 0; thr < global.nbthread; thr++)
1931 if (((all_threads_mask & ~tid_bit) >> thr) & 1)
1932 wake_thread(thr);
Willy Tarreau7067b3a2019-06-02 11:11:29 +02001933 t->expire = TICK_ETERNITY;
1934 return t;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001935 }
1936
Christopher Faulet767a84b2017-11-24 16:50:31 +01001937 ha_warning("soft-stop running for too long, performing a hard-stop.\n");
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001938 send_log(NULL, LOG_WARNING, "soft-stop running for too long, performing a hard-stop.\n");
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001939 p = proxies_list;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001940 while (p) {
1941 if ((p->cap & PR_CAP_FE) && (p->feconn > 0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001942 ha_warning("Proxy %s hard-stopped (%d remaining conns will be closed).\n",
1943 p->id, p->feconn);
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001944 send_log(p, LOG_WARNING, "Proxy %s hard-stopped (%d remaining conns will be closed).\n",
1945 p->id, p->feconn);
1946 }
1947 p = p->next;
1948 }
Willy Tarreau92b887e2021-02-24 11:08:56 +01001949
1950 thread_isolate();
Willy Tarreaua698eb62021-02-24 10:37:01 +01001951
1952 for (thr = 0; thr < global.nbthread; thr++) {
1953 list_for_each_entry(s, &ha_thread_info[thr].streams, list) {
1954 stream_shutdown(s, SF_ERR_KILLED);
1955 }
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001956 }
Willy Tarreaua698eb62021-02-24 10:37:01 +01001957
Willy Tarreau92b887e2021-02-24 11:08:56 +01001958 thread_release();
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001959
1960 killed = 1;
1961 t->expire = tick_add(now_ms, MS_TO_TICKS(1000));
1962 return t;
1963}
1964
Willy Tarreaubaaee002006-06-26 02:48:02 +02001965/*
1966 * this function disables health-check servers so that the process will quickly be ignored
1967 * by load balancers. Note that if a proxy was already in the PAUSED state, then its grace
1968 * time will not be used since it would already not listen anymore to the socket.
1969 */
1970void soft_stop(void)
1971{
1972 struct proxy *p;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001973 struct task *task;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001974
1975 stopping = 1;
William Dauchy3894d972019-12-28 15:36:02 +01001976 /* disable busy polling to avoid cpu eating for the new process */
1977 global.tune.options &= ~GTUNE_BUSY_POLLING;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001978 if (tick_isset(global.hard_stop_after)) {
Emeric Brunc60def82017-09-27 14:59:38 +02001979 task = task_new(MAX_THREADS_MASK);
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001980 if (task) {
1981 task->process = hard_stop;
1982 task_schedule(task, tick_add(now_ms, global.hard_stop_after));
1983 }
1984 else {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001985 ha_alert("out of memory trying to allocate the hard-stop task.\n");
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001986 }
1987 }
Willy Tarreau626f3a72020-10-07 16:52:43 +02001988
1989 /* stop all stoppable listeners, resulting in disabling all proxies
1990 * that don't use a grace period.
1991 */
1992 protocol_stop_now();
1993
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001994 p = proxies_list;
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001995 tv_update_date(0,1); /* else, the old time before select will be used */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001996 while (p) {
Willy Tarreauc3914d42020-09-24 08:39:22 +02001997 if (!p->disabled) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001998 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 +02001999 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 +02002000 p->stop_time = tick_add(now_ms, p->grace);
Emeric Brun5a8c0a92010-09-23 18:44:36 +02002001
Willy Tarreau20b7afb2015-09-28 16:35:04 +02002002 /* Note: do not wake up stopped proxies' task nor their tables'
2003 * tasks as these ones might point to already released entries.
2004 */
Frédéric Lécaille1b8e68e2019-03-14 07:07:41 +01002005 if (p->table && p->table->size && p->table->sync_task)
2006 task_wakeup(p->table->sync_task, TASK_WOKEN_MSG);
Willy Tarreau20b7afb2015-09-28 16:35:04 +02002007
2008 if (p->task)
2009 task_wakeup(p->task, TASK_WOKEN_MSG);
2010 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002011 p = p->next;
2012 }
Willy Tarreaubbe11b12011-07-25 11:16:24 +02002013
Willy Tarreaud0807c32010-08-27 18:26:11 +02002014 /* signal zero is used to broadcast the "stopping" event */
2015 signal_handler(0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002016}
2017
2018
Willy Tarreaube58c382011-07-24 18:28:10 +02002019/* Temporarily disables listening on all of the proxy's listeners. Upon
Willy Tarreaua17c91b2020-09-24 07:44:34 +02002020 * success, the proxy enters the PR_PAUSED state. The function returns 0
Willy Tarreauce8fe252011-09-07 19:14:57 +02002021 * if it fails, or non-zero on success.
Willy Tarreaubaaee002006-06-26 02:48:02 +02002022 */
Willy Tarreauce8fe252011-09-07 19:14:57 +02002023int pause_proxy(struct proxy *p)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002024{
2025 struct listener *l;
Willy Tarreauce8fe252011-09-07 19:14:57 +02002026
Willy Tarreauc3914d42020-09-24 08:39:22 +02002027 if (!(p->cap & PR_CAP_FE) || p->disabled || !p->li_ready)
Willy Tarreauce8fe252011-09-07 19:14:57 +02002028 return 1;
2029
Willy Tarreaua17c91b2020-09-24 07:44:34 +02002030 list_for_each_entry(l, &p->conf.listeners, by_fe)
2031 pause_listener(l);
Willy Tarreauce8fe252011-09-07 19:14:57 +02002032
Willy Tarreaua17c91b2020-09-24 07:44:34 +02002033 if (p->li_ready) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002034 ha_warning("%s %s failed to enter pause mode.\n", proxy_cap_str(p->cap), p->id);
Willy Tarreauce8fe252011-09-07 19:14:57 +02002035 send_log(p, LOG_WARNING, "%s %s failed to enter pause mode.\n", proxy_cap_str(p->cap), p->id);
2036 return 0;
2037 }
Willy Tarreauce8fe252011-09-07 19:14:57 +02002038 return 1;
Willy Tarreauda250db2008-10-12 12:07:48 +02002039}
2040
Willy Tarreauda250db2008-10-12 12:07:48 +02002041/*
2042 * This function completely stops a proxy and releases its listeners. It has
2043 * to be called when going down in order to release the ports so that another
2044 * process may bind to them. It must also be called on disabled proxies at the
William Lallemandc59f9882018-11-16 16:57:21 +01002045 * end of start-up. If all listeners are closed, the proxy is set to the
Willy Tarreau3de3cd42019-07-24 17:42:44 +02002046 * PR_STSTOPPED state. The function takes the proxy's lock so it's safe to
2047 * call from multiple places.
Willy Tarreauda250db2008-10-12 12:07:48 +02002048 */
2049void stop_proxy(struct proxy *p)
2050{
2051 struct listener *l;
2052
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002053 HA_RWLOCK_WRLOCK(PROXY_LOCK, &p->lock);
Willy Tarreau3de3cd42019-07-24 17:42:44 +02002054
Willy Tarreau322b9b92020-10-07 16:20:34 +02002055 list_for_each_entry(l, &p->conf.listeners, by_fe)
2056 stop_listener(l, 1, 0, 0);
Willy Tarreau3de3cd42019-07-24 17:42:44 +02002057
Willy Tarreauba296872020-10-16 15:10:11 +02002058 if (!p->disabled && !p->li_ready) {
2059 /* might be just a backend */
2060 p->disabled = 1;
2061 }
2062
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002063 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &p->lock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002064}
2065
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02002066/* This function resumes listening on the specified proxy. It scans all of its
2067 * listeners and tries to enable them all. If any of them fails, the proxy is
2068 * put back to the paused state. It returns 1 upon success, or zero if an error
2069 * is encountered.
2070 */
2071int resume_proxy(struct proxy *p)
2072{
2073 struct listener *l;
2074 int fail;
2075
Willy Tarreauc3914d42020-09-24 08:39:22 +02002076 if (p->disabled || !p->li_paused)
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02002077 return 1;
2078
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02002079 fail = 0;
Willy Tarreau4348fad2012-09-20 16:48:07 +02002080 list_for_each_entry(l, &p->conf.listeners, by_fe) {
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02002081 if (!resume_listener(l)) {
2082 int port;
2083
Willy Tarreau37159062020-08-27 07:48:42 +02002084 port = get_host_port(&l->rx.addr);
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02002085 if (port) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002086 ha_warning("Port %d busy while trying to enable %s %s.\n",
2087 port, proxy_cap_str(p->cap), p->id);
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02002088 send_log(p, LOG_WARNING, "Port %d busy while trying to enable %s %s.\n",
2089 port, proxy_cap_str(p->cap), p->id);
2090 }
2091 else {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002092 ha_warning("Bind on socket %d busy while trying to enable %s %s.\n",
2093 l->luid, proxy_cap_str(p->cap), p->id);
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02002094 send_log(p, LOG_WARNING, "Bind on socket %d busy while trying to enable %s %s.\n",
2095 l->luid, proxy_cap_str(p->cap), p->id);
2096 }
2097
2098 /* Another port might have been enabled. Let's stop everything. */
2099 fail = 1;
2100 break;
2101 }
2102 }
2103
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02002104 if (fail) {
2105 pause_proxy(p);
2106 return 0;
2107 }
2108 return 1;
2109}
2110
Willy Tarreau87b09662015-04-03 00:22:06 +02002111/* Set current stream's backend to <be>. Nothing is done if the
2112 * stream already had a backend assigned, which is indicated by
Willy Tarreaue7dff022015-04-03 01:14:29 +02002113 * s->flags & SF_BE_ASSIGNED.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02002114 * All flags, stats and counters which need be updated are updated.
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02002115 * Returns 1 if done, 0 in case of internal error, eg: lack of resource.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02002116 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002117int stream_set_backend(struct stream *s, struct proxy *be)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02002118{
Christopher Faulet6c1fd982021-03-15 10:42:02 +01002119 unsigned int req_ana;
2120
Willy Tarreaue7dff022015-04-03 01:14:29 +02002121 if (s->flags & SF_BE_ASSIGNED)
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02002122 return 1;
Christopher Faulet41179042016-06-21 11:54:52 +02002123
2124 if (flt_set_stream_backend(s, be) < 0)
2125 return 0;
2126
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02002127 s->be = be;
Christopher Fauletff8abcd2017-06-02 15:33:24 +02002128 HA_ATOMIC_UPDATE_MAX(&be->be_counters.conn_max,
Willy Tarreau1db42732021-04-06 11:44:07 +02002129 HA_ATOMIC_ADD_FETCH(&be->beconn, 1));
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02002130 proxy_inc_be_ctr(be);
2131
Willy Tarreau87b09662015-04-03 00:22:06 +02002132 /* assign new parameters to the stream from the new backend */
Willy Tarreauf27b5ea2009-10-03 22:01:18 +02002133 s->si[1].flags &= ~SI_FL_INDEP_STR;
2134 if (be->options2 & PR_O2_INDEPSTR)
2135 s->si[1].flags |= SI_FL_INDEP_STR;
2136
Hongbo Longe39683c2017-03-10 18:41:51 +01002137 if (tick_isset(be->timeout.serverfin))
2138 s->si[1].hcto = be->timeout.serverfin;
2139
Willy Tarreau9fbe18e2015-05-01 22:42:08 +02002140 /* We want to enable the backend-specific analysers except those which
2141 * were already run as part of the frontend/listener. Note that it would
2142 * be more reliable to store the list of analysers that have been run,
2143 * but what we do here is OK for now.
2144 */
Christopher Faulet6c1fd982021-03-15 10:42:02 +01002145 req_ana = be->be_req_ana;
2146 if (!(strm_fe(s)->options & PR_O_WREQ_BODY) && be->options & PR_O_WREQ_BODY) {
2147 /* The backend request to parse a request body while it was not
2148 * performed on the frontend, so add the corresponding analyser
2149 */
2150 req_ana |= AN_REQ_HTTP_BODY;
2151 }
2152 if (IS_HTX_STRM(s) && strm_fe(s)->mode != PR_MODE_HTTP) {
2153 /* The stream was already upgraded to HTTP, so remove analysers
2154 * set during the upgrade
2155 */
2156 req_ana &= ~(AN_REQ_WAIT_HTTP|AN_REQ_HTTP_PROCESS_FE);
2157 }
2158 s->req.analysers |= req_ana & ~(strm_li(s) ? strm_li(s)->analysers : 0);
Willy Tarreau9fbe18e2015-05-01 22:42:08 +02002159
Christopher Faulet6c1fd982021-03-15 10:42:02 +01002160 if (!IS_HTX_STRM(s) && be->mode == PR_MODE_HTTP) {
Christopher Fauletbbe68542019-04-08 10:53:51 +02002161 /* If we chain a TCP frontend to an HTX backend, we must upgrade
2162 * the client mux */
Christopher Fauletae863c62021-03-15 12:03:44 +01002163 if (!stream_set_http_mode(s, NULL))
Christopher Fauleteec7f8a2019-12-20 15:59:20 +01002164 return 0;
Christopher Faulet6c1fd982021-03-15 10:42:02 +01002165 }
2166 else if (IS_HTX_STRM(s) && be->mode != PR_MODE_HTTP) {
2167 /* If a TCP backend is assgiend to an HTX stream, return an
2168 * error. It may happens for a new stream on a previously
2169 * upgraded connections. */
2170 if (!(s->flags & SF_ERR_MASK))
2171 s->flags |= SF_ERR_INTERNAL;
2172 return 0;
2173 }
2174 else {
2175 /* If the target backend requires HTTP processing, we have to allocate
2176 * the HTTP transaction if we did not have one.
2177 */
2178 if (unlikely(!s->txn && be->http_needed && !http_create_txn(s)))
2179 return 0;
Willy Tarreaueee5b512015-04-03 23:46:31 +02002180 }
2181
2182 s->flags |= SF_BE_ASSIGNED;
Willy Tarreau96e31212011-05-30 18:10:30 +02002183 if (be->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01002184 s->req.flags |= CF_NEVER_WAIT;
2185 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +02002186 }
2187
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02002188 return 1;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02002189}
2190
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002191/* Capture a bad request or response and archive it in the proxy's structure.
2192 * It is relatively protocol-agnostic so it requires that a number of elements
2193 * are passed :
2194 * - <proxy> is the proxy where the error was detected and where the snapshot
2195 * needs to be stored
Joseph Herlant59dd2952018-11-15 11:46:55 -08002196 * - <is_back> indicates that the error happened when receiving the response
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002197 * - <other_end> is a pointer to the proxy on the other side when known
2198 * - <target> is the target of the connection, usually a server or a proxy
2199 * - <sess> is the session which experienced the error
2200 * - <ctx> may be NULL or should contain any info relevant to the protocol
2201 * - <buf> is the buffer containing the offending data
2202 * - <buf_ofs> is the position of this buffer's input data in the input
2203 * stream, starting at zero. It may be passed as zero if unknown.
2204 * - <buf_out> is the portion of <buf->data> which was already forwarded and
2205 * which precedes the buffer's input. The buffer's input starts at
2206 * buf->head + buf_out.
2207 * - <err_pos> is the pointer to the faulty byte in the buffer's input.
2208 * - <show> is the callback to use to display <ctx>. It may be NULL.
2209 */
2210void proxy_capture_error(struct proxy *proxy, int is_back,
2211 struct proxy *other_end, enum obj_type *target,
2212 const struct session *sess,
2213 const struct buffer *buf, long buf_ofs,
2214 unsigned int buf_out, unsigned int err_pos,
2215 const union error_snapshot_ctx *ctx,
2216 void (*show)(struct buffer *, const struct error_snapshot *))
2217{
2218 struct error_snapshot *es;
2219 unsigned int buf_len;
2220 int len1, len2;
Willy Tarreauc55015e2018-09-07 19:02:32 +02002221 unsigned int ev_id;
2222
Willy Tarreau18515722021-04-06 11:57:41 +02002223 ev_id = HA_ATOMIC_FETCH_ADD(&error_snapshot_id, 1);
Willy Tarreauc55015e2018-09-07 19:02:32 +02002224
Willy Tarreau4bc7d902018-09-07 20:07:17 +02002225 buf_len = b_data(buf) - buf_out;
2226
2227 es = malloc(sizeof(*es) + buf_len);
Willy Tarreauc55015e2018-09-07 19:02:32 +02002228 if (!es)
2229 return;
2230
Willy Tarreau4bc7d902018-09-07 20:07:17 +02002231 es->buf_len = buf_len;
2232 es->ev_id = ev_id;
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002233
Christopher Faulet47a72102020-01-06 11:37:00 +01002234 len1 = b_size(buf) - b_peek_ofs(buf, buf_out);
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002235 if (len1 > buf_len)
2236 len1 = buf_len;
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002237
Willy Tarreau4bc7d902018-09-07 20:07:17 +02002238 if (len1) {
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002239 memcpy(es->buf, b_peek(buf, buf_out), len1);
Willy Tarreau4bc7d902018-09-07 20:07:17 +02002240 len2 = buf_len - len1;
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002241 if (len2)
2242 memcpy(es->buf + len1, b_orig(buf), len2);
2243 }
2244
2245 es->buf_err = err_pos;
2246 es->when = date; // user-visible date
2247 es->srv = objt_server(target);
2248 es->oe = other_end;
Olivier Houchardbdb00c52020-03-12 15:30:17 +01002249 if (sess && objt_conn(sess->origin) && conn_get_src(__objt_conn(sess->origin)))
Willy Tarreau026efc72019-07-17 15:20:02 +02002250 es->src = *__objt_conn(sess->origin)->src;
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002251 else
2252 memset(&es->src, 0, sizeof(es->src));
2253
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002254 es->buf_wrap = b_wrap(buf) - b_peek(buf, buf_out);
2255 es->buf_out = buf_out;
2256 es->buf_ofs = buf_ofs;
2257
2258 /* be sure to indicate the offset of the first IN byte */
2259 if (es->buf_ofs >= es->buf_len)
2260 es->buf_ofs -= es->buf_len;
2261 else
2262 es->buf_ofs = 0;
2263
2264 /* protocol-specific part now */
2265 if (ctx)
2266 es->ctx = *ctx;
2267 else
2268 memset(&es->ctx, 0, sizeof(es->ctx));
2269 es->show = show;
Willy Tarreauc55015e2018-09-07 19:02:32 +02002270
2271 /* note: we still lock since we have to be certain that nobody is
2272 * dumping the output while we free.
2273 */
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002274 HA_RWLOCK_WRLOCK(PROXY_LOCK, &proxy->lock);
Willy Tarreauc55015e2018-09-07 19:02:32 +02002275 if (is_back) {
2276 es = HA_ATOMIC_XCHG(&proxy->invalid_rep, es);
2277 } else {
2278 es = HA_ATOMIC_XCHG(&proxy->invalid_req, es);
2279 }
2280 free(es);
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002281 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &proxy->lock);
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002282}
2283
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002284/* Configure all proxies which lack a maxconn setting to use the global one by
2285 * default. This avoids the common mistake consisting in setting maxconn only
2286 * in the global section and discovering the hard way that it doesn't propagate
2287 * through the frontends. These values are also propagated through the various
Ilya Shipitsin47d17182020-06-21 21:42:57 +05002288 * targeted backends, whose fullconn is finally calculated if not yet set.
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002289 */
2290void proxy_adjust_all_maxconn()
2291{
2292 struct proxy *curproxy;
2293 struct switching_rule *swrule1, *swrule2;
2294
2295 for (curproxy = proxies_list; curproxy; curproxy = curproxy->next) {
Willy Tarreauc3914d42020-09-24 08:39:22 +02002296 if (curproxy->disabled)
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002297 continue;
2298
2299 if (!(curproxy->cap & PR_CAP_FE))
2300 continue;
2301
2302 if (!curproxy->maxconn)
2303 curproxy->maxconn = global.maxconn;
2304
2305 /* update the target backend's fullconn count : default_backend */
2306 if (curproxy->defbe.be)
2307 curproxy->defbe.be->tot_fe_maxconn += curproxy->maxconn;
2308 else if ((curproxy->cap & PR_CAP_LISTEN) == PR_CAP_LISTEN)
2309 curproxy->tot_fe_maxconn += curproxy->maxconn;
2310
2311 list_for_each_entry(swrule1, &curproxy->switching_rules, list) {
2312 /* For each target of switching rules, we update their
2313 * tot_fe_maxconn, except if a previous rule points to
2314 * the same backend or to the default backend.
2315 */
2316 if (swrule1->be.backend != curproxy->defbe.be) {
Frédéric Lécaille2365fb02019-03-07 15:02:52 +01002317 /* note: swrule1->be.backend isn't a backend if the rule
2318 * is dynamic, it's an expression instead, so it must not
2319 * be dereferenced as a backend before being certain it is.
2320 */
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002321 list_for_each_entry(swrule2, &curproxy->switching_rules, list) {
2322 if (swrule2 == swrule1) {
Frédéric Lécaille2365fb02019-03-07 15:02:52 +01002323 if (!swrule1->dynamic)
2324 swrule1->be.backend->tot_fe_maxconn += curproxy->maxconn;
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002325 break;
2326 }
2327 else if (!swrule2->dynamic && swrule2->be.backend == swrule1->be.backend) {
2328 /* there are multiple refs of this backend */
2329 break;
2330 }
2331 }
2332 }
2333 }
2334 }
2335
2336 /* automatically compute fullconn if not set. We must not do it in the
2337 * loop above because cross-references are not yet fully resolved.
2338 */
2339 for (curproxy = proxies_list; curproxy; curproxy = curproxy->next) {
Willy Tarreauc3914d42020-09-24 08:39:22 +02002340 if (curproxy->disabled)
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002341 continue;
2342
2343 /* If <fullconn> is not set, let's set it to 10% of the sum of
2344 * the possible incoming frontend's maxconns.
2345 */
2346 if (!curproxy->fullconn && (curproxy->cap & PR_CAP_BE)) {
2347 /* we have the sum of the maxconns in <total>. We only
2348 * keep 10% of that sum to set the default fullconn, with
2349 * a hard minimum of 1 (to avoid a divide by zero).
2350 */
2351 curproxy->fullconn = (curproxy->tot_fe_maxconn + 9) / 10;
2352 if (!curproxy->fullconn)
2353 curproxy->fullconn = 1;
2354 }
2355 }
2356}
2357
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002358/* Config keywords below */
2359
Willy Tarreaudc13c112013-06-21 23:16:39 +02002360static struct cfg_kw_list cfg_kws = {ILH, {
Cyril Bonté203ec5a2017-03-23 22:44:13 +01002361 { CFG_GLOBAL, "hard-stop-after", proxy_parse_hard_stop_after },
Willy Tarreau9de1bbd2008-07-09 20:34:27 +02002362 { CFG_LISTEN, "timeout", proxy_parse_timeout },
Tim Duesterhus86e6b6e2019-05-14 20:57:59 +02002363 { CFG_LISTEN, "clitimeout", proxy_parse_timeout }, /* This keyword actually fails to parse, this line remains for better error messages. */
2364 { CFG_LISTEN, "contimeout", proxy_parse_timeout }, /* This keyword actually fails to parse, this line remains for better error messages. */
2365 { 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 +01002366 { CFG_LISTEN, "rate-limit", proxy_parse_rate_limit },
Willy Tarreauc35362a2014-04-25 13:58:37 +02002367 { CFG_LISTEN, "max-keep-alive-queue", proxy_parse_max_ka_queue },
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +02002368 { CFG_LISTEN, "declare", proxy_parse_declare },
Olivier Houcharda254a372019-04-05 15:30:12 +02002369 { CFG_LISTEN, "retry-on", proxy_parse_retry_on },
Willy Tarreau52543212020-07-09 05:58:51 +02002370#ifdef TCP_KEEPCNT
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +09002371 { CFG_LISTEN, "clitcpka-cnt", proxy_parse_tcpka_cnt },
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +09002372 { CFG_LISTEN, "srvtcpka-cnt", proxy_parse_tcpka_cnt },
Willy Tarreau52543212020-07-09 05:58:51 +02002373#endif
2374#ifdef TCP_KEEPIDLE
2375 { CFG_LISTEN, "clitcpka-idle", proxy_parse_tcpka_idle },
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +09002376 { CFG_LISTEN, "srvtcpka-idle", proxy_parse_tcpka_idle },
Willy Tarreau52543212020-07-09 05:58:51 +02002377#endif
2378#ifdef TCP_KEEPINTVL
2379 { CFG_LISTEN, "clitcpka-intvl", proxy_parse_tcpka_intvl },
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +09002380 { CFG_LISTEN, "srvtcpka-intvl", proxy_parse_tcpka_intvl },
Willy Tarreau52543212020-07-09 05:58:51 +02002381#endif
Willy Tarreau9de1bbd2008-07-09 20:34:27 +02002382 { 0, NULL, NULL },
2383}};
2384
Willy Tarreau0108d902018-11-25 19:14:37 +01002385INITCALL1(STG_REGISTER, cfg_register_keywords, &cfg_kws);
2386
Willy Tarreau960f2cb2016-11-24 12:02:29 +01002387/* Expects to find a frontend named <arg> and returns it, otherwise displays various
2388 * adequate error messages and returns NULL. This function is designed to be used by
2389 * functions requiring a frontend on the CLI.
2390 */
2391struct proxy *cli_find_frontend(struct appctx *appctx, const char *arg)
2392{
2393 struct proxy *px;
2394
2395 if (!*arg) {
Willy Tarreau9d008692019-08-09 11:21:01 +02002396 cli_err(appctx, "A frontend name is expected.\n");
Willy Tarreau960f2cb2016-11-24 12:02:29 +01002397 return NULL;
2398 }
2399
2400 px = proxy_fe_by_name(arg);
2401 if (!px) {
Willy Tarreau9d008692019-08-09 11:21:01 +02002402 cli_err(appctx, "No such frontend.\n");
Willy Tarreau960f2cb2016-11-24 12:02:29 +01002403 return NULL;
2404 }
2405 return px;
2406}
2407
Olivier Houchard614f8d72017-03-14 20:08:46 +01002408/* Expects to find a backend named <arg> and returns it, otherwise displays various
2409 * adequate error messages and returns NULL. This function is designed to be used by
2410 * functions requiring a frontend on the CLI.
2411 */
2412struct proxy *cli_find_backend(struct appctx *appctx, const char *arg)
2413{
2414 struct proxy *px;
2415
2416 if (!*arg) {
Willy Tarreau9d008692019-08-09 11:21:01 +02002417 cli_err(appctx, "A backend name is expected.\n");
Olivier Houchard614f8d72017-03-14 20:08:46 +01002418 return NULL;
2419 }
2420
2421 px = proxy_be_by_name(arg);
2422 if (!px) {
Willy Tarreau9d008692019-08-09 11:21:01 +02002423 cli_err(appctx, "No such backend.\n");
Olivier Houchard614f8d72017-03-14 20:08:46 +01002424 return NULL;
2425 }
2426 return px;
2427}
2428
2429
Willy Tarreau69f591e2020-07-01 07:00:59 +02002430/* parse a "show servers [state|conn]" CLI line, returns 0 if it wants to start
2431 * the dump or 1 if it stops immediately. If an argument is specified, it will
2432 * set the proxy pointer into cli.p0 and its ID into cli.i0. It sets cli.o0 to
2433 * 0 for "state", or 1 for "conn".
William Lallemanda6c5f332016-11-19 02:25:36 +01002434 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002435static int cli_parse_show_servers(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemanda6c5f332016-11-19 02:25:36 +01002436{
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002437 struct proxy *px;
William Lallemanda6c5f332016-11-19 02:25:36 +01002438
Willy Tarreau69f591e2020-07-01 07:00:59 +02002439 appctx->ctx.cli.o0 = *args[2] == 'c'; // "conn" vs "state"
2440
William Lallemanda6c5f332016-11-19 02:25:36 +01002441 /* check if a backend name has been provided */
2442 if (*args[3]) {
2443 /* read server state from local file */
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002444 px = proxy_be_by_name(args[3]);
William Lallemanda6c5f332016-11-19 02:25:36 +01002445
Willy Tarreau9d008692019-08-09 11:21:01 +02002446 if (!px)
2447 return cli_err(appctx, "Can't find backend.\n");
2448
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002449 appctx->ctx.cli.p0 = px;
2450 appctx->ctx.cli.i0 = px->uuid;
William Lallemanda6c5f332016-11-19 02:25:36 +01002451 }
2452 return 0;
2453}
2454
William Dauchyd1a7b852021-02-11 22:51:26 +01002455/* helper to dump server addr */
2456static void dump_server_addr(const struct sockaddr_storage *addr, char *addr_str)
2457{
2458 addr_str[0] = '\0';
2459 switch (addr->ss_family) {
2460 case AF_INET:
2461 case AF_INET6:
2462 addr_to_str(addr, addr_str, INET6_ADDRSTRLEN + 1);
2463 break;
2464 default:
2465 memcpy(addr_str, "-\0", 2);
2466 break;
2467 }
2468}
2469
Willy Tarreau6ff81432020-07-01 07:02:42 +02002470/* dumps server state information for all the servers found in backend cli.p0.
William Lallemanda6c5f332016-11-19 02:25:36 +01002471 * These information are all the parameters which may change during HAProxy runtime.
2472 * By default, we only export to the last known server state file format.
2473 * These information can be used at next startup to recover same level of server state.
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002474 * It uses the proxy pointer from cli.p0, the proxy's id from cli.i0 and the server's
2475 * pointer from cli.p1.
William Lallemanda6c5f332016-11-19 02:25:36 +01002476 */
Willy Tarreau6ff81432020-07-01 07:02:42 +02002477static int dump_servers_state(struct stream_interface *si)
William Lallemanda6c5f332016-11-19 02:25:36 +01002478{
2479 struct appctx *appctx = __objt_appctx(si->end);
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002480 struct proxy *px = appctx->ctx.cli.p0;
William Lallemanda6c5f332016-11-19 02:25:36 +01002481 struct server *srv;
2482 char srv_addr[INET6_ADDRSTRLEN + 1];
William Dauchyd1a7b852021-02-11 22:51:26 +01002483 char srv_agent_addr[INET6_ADDRSTRLEN + 1];
2484 char srv_check_addr[INET6_ADDRSTRLEN + 1];
William Lallemanda6c5f332016-11-19 02:25:36 +01002485 time_t srv_time_since_last_change;
2486 int bk_f_forced_id, srv_f_forced_id;
Baptiste Assmann6d0f38f2018-07-02 17:00:54 +02002487 char *srvrecord;
William Lallemanda6c5f332016-11-19 02:25:36 +01002488
William Lallemanda6c5f332016-11-19 02:25:36 +01002489 /* we don't want to report any state if the backend is not enabled on this process */
Willy Tarreau6daac192019-02-02 17:39:53 +01002490 if (!(proc_mask(px->bind_proc) & pid_bit))
William Lallemanda6c5f332016-11-19 02:25:36 +01002491 return 1;
2492
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002493 if (!appctx->ctx.cli.p1)
2494 appctx->ctx.cli.p1 = px->srv;
William Lallemanda6c5f332016-11-19 02:25:36 +01002495
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002496 for (; appctx->ctx.cli.p1 != NULL; appctx->ctx.cli.p1 = srv->next) {
2497 srv = appctx->ctx.cli.p1;
William Lallemanda6c5f332016-11-19 02:25:36 +01002498
William Dauchyd1a7b852021-02-11 22:51:26 +01002499 dump_server_addr(&srv->addr, srv_addr);
2500 dump_server_addr(&srv->check.addr, srv_check_addr);
2501 dump_server_addr(&srv->agent.addr, srv_agent_addr);
2502
William Lallemanda6c5f332016-11-19 02:25:36 +01002503 srv_time_since_last_change = now.tv_sec - srv->last_change;
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002504 bk_f_forced_id = px->options & PR_O_FORCED_ID ? 1 : 0;
William Lallemanda6c5f332016-11-19 02:25:36 +01002505 srv_f_forced_id = srv->flags & SRV_F_FORCED_ID ? 1 : 0;
2506
Baptiste Assmann6d0f38f2018-07-02 17:00:54 +02002507 srvrecord = NULL;
2508 if (srv->srvrq && srv->srvrq->name)
2509 srvrecord = srv->srvrq->name;
2510
Willy Tarreau69f591e2020-07-01 07:00:59 +02002511 if (appctx->ctx.cli.o0 == 0) {
2512 /* show servers state */
2513 chunk_printf(&trash,
2514 "%d %s "
2515 "%d %s %s "
2516 "%d %d %d %d %ld "
2517 "%d %d %d %d %d "
William Dauchyf6370442020-11-14 19:25:33 +01002518 "%d %d %s %u "
William Dauchyd1a7b852021-02-11 22:51:26 +01002519 "%s %d %d "
2520 "%s %s %d"
Willy Tarreau69f591e2020-07-01 07:00:59 +02002521 "\n",
2522 px->uuid, px->id,
2523 srv->puid, srv->id, srv_addr,
2524 srv->cur_state, srv->cur_admin, srv->uweight, srv->iweight, (long int)srv_time_since_last_change,
2525 srv->check.status, srv->check.result, srv->check.health, srv->check.state, srv->agent.state,
2526 bk_f_forced_id, srv_f_forced_id, srv->hostname ? srv->hostname : "-", srv->svc_port,
William Dauchyd1a7b852021-02-11 22:51:26 +01002527 srvrecord ? srvrecord : "-", srv->use_ssl, srv->check.port,
2528 srv_check_addr, srv_agent_addr, srv->agent.port);
Willy Tarreau69f591e2020-07-01 07:00:59 +02002529 } else {
2530 /* show servers conn */
2531 int thr;
2532
2533 chunk_printf(&trash,
2534 "%s/%s %d/%d %s %u - %u %u %u %u %u %u %d %u",
2535 px->id, srv->id, px->uuid, srv->puid, srv_addr,srv->svc_port,
2536 srv->pool_purge_delay,
2537 srv->curr_used_conns, srv->max_used_conns, srv->est_need_conns,
2538 srv->curr_idle_nb, srv->curr_safe_nb, (int)srv->max_idle_conns, srv->curr_idle_conns);
2539
Willy Tarreau42abe682020-07-02 15:19:57 +02002540 for (thr = 0; thr < global.nbthread && srv->curr_idle_thr; thr++)
Willy Tarreau69f591e2020-07-01 07:00:59 +02002541 chunk_appendf(&trash, " %u", srv->curr_idle_thr[thr]);
2542
2543 chunk_appendf(&trash, "\n");
2544 }
2545
Willy Tarreau06d80a92017-10-19 14:32:15 +02002546 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreaudb398432018-11-15 11:08:52 +01002547 si_rx_room_blk(si);
William Lallemanda6c5f332016-11-19 02:25:36 +01002548 return 0;
2549 }
2550 }
2551 return 1;
2552}
2553
2554/* Parses backend list or simply use backend name provided by the user to return
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002555 * states of servers to stdout. It dumps proxy <cli.p0> and stops if <cli.i0> is
2556 * non-null.
William Lallemanda6c5f332016-11-19 02:25:36 +01002557 */
2558static int cli_io_handler_servers_state(struct appctx *appctx)
2559{
2560 struct stream_interface *si = appctx->owner;
William Lallemanda6c5f332016-11-19 02:25:36 +01002561 struct proxy *curproxy;
2562
2563 chunk_reset(&trash);
2564
2565 if (appctx->st2 == STAT_ST_INIT) {
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002566 if (!appctx->ctx.cli.p0)
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002567 appctx->ctx.cli.p0 = proxies_list;
William Lallemanda6c5f332016-11-19 02:25:36 +01002568 appctx->st2 = STAT_ST_HEAD;
2569 }
2570
2571 if (appctx->st2 == STAT_ST_HEAD) {
Willy Tarreau69f591e2020-07-01 07:00:59 +02002572 if (appctx->ctx.cli.o0 == 0)
2573 chunk_printf(&trash, "%d\n# %s\n", SRV_STATE_FILE_VERSION, SRV_STATE_FILE_FIELD_NAMES);
2574 else
2575 chunk_printf(&trash,
2576 "# 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",
2577 global.nbthread);
2578
Willy Tarreau06d80a92017-10-19 14:32:15 +02002579 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreaudb398432018-11-15 11:08:52 +01002580 si_rx_room_blk(si);
William Lallemanda6c5f332016-11-19 02:25:36 +01002581 return 0;
2582 }
2583 appctx->st2 = STAT_ST_INFO;
2584 }
2585
2586 /* STAT_ST_INFO */
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002587 for (; appctx->ctx.cli.p0 != NULL; appctx->ctx.cli.p0 = curproxy->next) {
2588 curproxy = appctx->ctx.cli.p0;
William Lallemanda6c5f332016-11-19 02:25:36 +01002589 /* servers are only in backends */
2590 if (curproxy->cap & PR_CAP_BE) {
Willy Tarreau6ff81432020-07-01 07:02:42 +02002591 if (!dump_servers_state(si))
William Lallemanda6c5f332016-11-19 02:25:36 +01002592 return 0;
William Lallemanda6c5f332016-11-19 02:25:36 +01002593 }
2594 /* only the selected proxy is dumped */
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002595 if (appctx->ctx.cli.i0)
William Lallemanda6c5f332016-11-19 02:25:36 +01002596 break;
2597 }
2598
2599 return 1;
2600}
2601
Willy Tarreau608ea592016-12-16 18:01:15 +01002602/* Parses backend list and simply report backend names. It keeps the proxy
2603 * pointer in cli.p0.
2604 */
William Lallemand933efcd2016-11-22 12:34:16 +01002605static int cli_io_handler_show_backend(struct appctx *appctx)
2606{
William Lallemand933efcd2016-11-22 12:34:16 +01002607 struct stream_interface *si = appctx->owner;
2608 struct proxy *curproxy;
2609
2610 chunk_reset(&trash);
2611
Willy Tarreau608ea592016-12-16 18:01:15 +01002612 if (!appctx->ctx.cli.p0) {
William Lallemand933efcd2016-11-22 12:34:16 +01002613 chunk_printf(&trash, "# name\n");
Willy Tarreau06d80a92017-10-19 14:32:15 +02002614 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreaudb398432018-11-15 11:08:52 +01002615 si_rx_room_blk(si);
William Lallemand933efcd2016-11-22 12:34:16 +01002616 return 0;
2617 }
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002618 appctx->ctx.cli.p0 = proxies_list;
William Lallemand933efcd2016-11-22 12:34:16 +01002619 }
2620
Willy Tarreau608ea592016-12-16 18:01:15 +01002621 for (; appctx->ctx.cli.p0 != NULL; appctx->ctx.cli.p0 = curproxy->next) {
2622 curproxy = appctx->ctx.cli.p0;
William Lallemand933efcd2016-11-22 12:34:16 +01002623
2624 /* looking for backends only */
2625 if (!(curproxy->cap & PR_CAP_BE))
2626 continue;
2627
2628 /* we don't want to list a backend which is bound to this process */
Willy Tarreau6daac192019-02-02 17:39:53 +01002629 if (!(proc_mask(curproxy->bind_proc) & pid_bit))
William Lallemand933efcd2016-11-22 12:34:16 +01002630 continue;
2631
2632 chunk_appendf(&trash, "%s\n", curproxy->id);
Willy Tarreau06d80a92017-10-19 14:32:15 +02002633 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreaudb398432018-11-15 11:08:52 +01002634 si_rx_room_blk(si);
William Lallemand933efcd2016-11-22 12:34:16 +01002635 return 0;
2636 }
2637 }
2638
2639 return 1;
2640}
William Lallemanda6c5f332016-11-19 02:25:36 +01002641
Willy Tarreaua275a372018-08-21 14:50:44 +02002642/* Parses the "enable dynamic-cookies backend" directive, it always returns 1.
2643 *
2644 * Grabs the proxy lock and each server's lock.
2645 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002646static int cli_parse_enable_dyncookie_backend(char **args, char *payload, struct appctx *appctx, void *private)
Olivier Houchard614f8d72017-03-14 20:08:46 +01002647{
2648 struct proxy *px;
2649 struct server *s;
2650
2651 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2652 return 1;
2653
2654 px = cli_find_backend(appctx, args[3]);
2655 if (!px)
2656 return 1;
2657
Willy Tarreau5e83d992019-07-30 11:59:34 +02002658 /* Note: this lock is to make sure this doesn't change while another
2659 * thread is in srv_set_dyncookie().
2660 */
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002661 HA_RWLOCK_WRLOCK(PROXY_LOCK, &px->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002662 px->ck_opts |= PR_CK_DYNAMIC;
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002663 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &px->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002664
Willy Tarreaua275a372018-08-21 14:50:44 +02002665 for (s = px->srv; s != NULL; s = s->next) {
2666 HA_SPIN_LOCK(SERVER_LOCK, &s->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002667 srv_set_dyncookie(s);
Willy Tarreaua275a372018-08-21 14:50:44 +02002668 HA_SPIN_UNLOCK(SERVER_LOCK, &s->lock);
2669 }
2670
Olivier Houchard614f8d72017-03-14 20:08:46 +01002671 return 1;
2672}
2673
Willy Tarreaua275a372018-08-21 14:50:44 +02002674/* Parses the "disable dynamic-cookies backend" directive, it always returns 1.
2675 *
2676 * Grabs the proxy lock and each server's lock.
2677 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002678static int cli_parse_disable_dyncookie_backend(char **args, char *payload, struct appctx *appctx, void *private)
Olivier Houchard614f8d72017-03-14 20:08:46 +01002679{
2680 struct proxy *px;
2681 struct server *s;
2682
2683 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2684 return 1;
2685
2686 px = cli_find_backend(appctx, args[3]);
2687 if (!px)
2688 return 1;
2689
Willy Tarreau5e83d992019-07-30 11:59:34 +02002690 /* Note: this lock is to make sure this doesn't change while another
2691 * thread is in srv_set_dyncookie().
2692 */
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002693 HA_RWLOCK_WRLOCK(PROXY_LOCK, &px->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002694 px->ck_opts &= ~PR_CK_DYNAMIC;
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002695 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &px->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002696
2697 for (s = px->srv; s != NULL; s = s->next) {
Willy Tarreaua275a372018-08-21 14:50:44 +02002698 HA_SPIN_LOCK(SERVER_LOCK, &s->lock);
Willy Tarreau61cfdf42021-02-20 10:46:51 +01002699 if (!(s->flags & SRV_F_COOKIESET))
2700 ha_free(&s->cookie);
Willy Tarreaua275a372018-08-21 14:50:44 +02002701 HA_SPIN_UNLOCK(SERVER_LOCK, &s->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002702 }
2703
2704 return 1;
2705}
2706
Willy Tarreaua275a372018-08-21 14:50:44 +02002707/* Parses the "set dynamic-cookie-key backend" directive, it always returns 1.
2708 *
2709 * Grabs the proxy lock and each server's lock.
2710 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002711static int cli_parse_set_dyncookie_key_backend(char **args, char *payload, struct appctx *appctx, void *private)
Olivier Houchard614f8d72017-03-14 20:08:46 +01002712{
2713 struct proxy *px;
2714 struct server *s;
2715 char *newkey;
2716
2717 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2718 return 1;
2719
2720 px = cli_find_backend(appctx, args[3]);
2721 if (!px)
2722 return 1;
2723
Willy Tarreau9d008692019-08-09 11:21:01 +02002724 if (!*args[4])
2725 return cli_err(appctx, "String value expected.\n");
Olivier Houchard614f8d72017-03-14 20:08:46 +01002726
2727 newkey = strdup(args[4]);
Willy Tarreau9d008692019-08-09 11:21:01 +02002728 if (!newkey)
2729 return cli_err(appctx, "Failed to allocate memory.\n");
Willy Tarreaua275a372018-08-21 14:50:44 +02002730
Willy Tarreau5e83d992019-07-30 11:59:34 +02002731 /* Note: this lock is to make sure this doesn't change while another
2732 * thread is in srv_set_dyncookie().
2733 */
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002734 HA_RWLOCK_WRLOCK(PROXY_LOCK, &px->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002735 free(px->dyncookie_key);
2736 px->dyncookie_key = newkey;
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002737 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &px->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002738
Willy Tarreaua275a372018-08-21 14:50:44 +02002739 for (s = px->srv; s != NULL; s = s->next) {
2740 HA_SPIN_LOCK(SERVER_LOCK, &s->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002741 srv_set_dyncookie(s);
Willy Tarreaua275a372018-08-21 14:50:44 +02002742 HA_SPIN_UNLOCK(SERVER_LOCK, &s->lock);
2743 }
2744
Olivier Houchard614f8d72017-03-14 20:08:46 +01002745 return 1;
2746}
2747
Willy Tarreaua275a372018-08-21 14:50:44 +02002748/* Parses the "set maxconn frontend" directive, it always returns 1.
2749 *
2750 * Grabs the proxy lock.
2751 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002752static int cli_parse_set_maxconn_frontend(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002753{
2754 struct proxy *px;
2755 struct listener *l;
2756 int v;
2757
2758 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2759 return 1;
2760
2761 px = cli_find_frontend(appctx, args[3]);
2762 if (!px)
2763 return 1;
2764
Willy Tarreau9d008692019-08-09 11:21:01 +02002765 if (!*args[4])
2766 return cli_err(appctx, "Integer value expected.\n");
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002767
2768 v = atoi(args[4]);
Willy Tarreau9d008692019-08-09 11:21:01 +02002769 if (v < 0)
2770 return cli_err(appctx, "Value out of range.\n");
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002771
2772 /* OK, the value is fine, so we assign it to the proxy and to all of
2773 * its listeners. The blocked ones will be dequeued.
2774 */
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002775 HA_RWLOCK_WRLOCK(PROXY_LOCK, &px->lock);
Willy Tarreaua275a372018-08-21 14:50:44 +02002776
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002777 px->maxconn = v;
2778 list_for_each_entry(l, &px->conf.listeners, by_fe) {
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002779 if (l->state == LI_FULL)
2780 resume_listener(l);
2781 }
2782
Willy Tarreau241797a2019-12-10 14:10:52 +01002783 if (px->maxconn > px->feconn)
2784 dequeue_proxy_listeners(px);
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002785
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002786 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &px->lock);
Willy Tarreaua275a372018-08-21 14:50:44 +02002787
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002788 return 1;
2789}
2790
Willy Tarreaua275a372018-08-21 14:50:44 +02002791/* Parses the "shutdown frontend" directive, it always returns 1.
2792 *
2793 * Grabs the proxy lock.
2794 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002795static int cli_parse_shutdown_frontend(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau5212d7f2016-11-24 11:13:06 +01002796{
2797 struct proxy *px;
2798
2799 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2800 return 1;
2801
2802 px = cli_find_frontend(appctx, args[2]);
2803 if (!px)
2804 return 1;
2805
Willy Tarreauc3914d42020-09-24 08:39:22 +02002806 if (px->disabled)
Willy Tarreau9d008692019-08-09 11:21:01 +02002807 return cli_msg(appctx, LOG_NOTICE, "Frontend was already shut down.\n");
Willy Tarreau5212d7f2016-11-24 11:13:06 +01002808
Willy Tarreau5212d7f2016-11-24 11:13:06 +01002809 stop_proxy(px);
2810 return 1;
2811}
2812
Willy Tarreaua275a372018-08-21 14:50:44 +02002813/* Parses the "disable frontend" directive, it always returns 1.
2814 *
2815 * Grabs the proxy lock.
2816 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002817static int cli_parse_disable_frontend(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau15b9e682016-11-24 11:55:28 +01002818{
2819 struct proxy *px;
Willy Tarreaua275a372018-08-21 14:50:44 +02002820 int ret;
Willy Tarreau15b9e682016-11-24 11:55:28 +01002821
2822 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2823 return 1;
2824
2825 px = cli_find_frontend(appctx, args[2]);
2826 if (!px)
2827 return 1;
2828
Willy Tarreauc3914d42020-09-24 08:39:22 +02002829 if (px->disabled)
Willy Tarreau9d008692019-08-09 11:21:01 +02002830 return cli_msg(appctx, LOG_NOTICE, "Frontend was previously shut down, cannot disable.\n");
Willy Tarreau15b9e682016-11-24 11:55:28 +01002831
Willy Tarreauf18d9682020-09-24 08:04:27 +02002832 if (!px->li_ready)
2833 return cli_msg(appctx, LOG_NOTICE, "All sockets are already disabled.\n");
Willy Tarreau15b9e682016-11-24 11:55:28 +01002834
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002835 HA_RWLOCK_WRLOCK(PROXY_LOCK, &px->lock);
Willy Tarreaua275a372018-08-21 14:50:44 +02002836 ret = pause_proxy(px);
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002837 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &px->lock);
Willy Tarreaua275a372018-08-21 14:50:44 +02002838
Willy Tarreau9d008692019-08-09 11:21:01 +02002839 if (!ret)
2840 return cli_err(appctx, "Failed to pause frontend, check logs for precise cause.\n");
2841
Willy Tarreau15b9e682016-11-24 11:55:28 +01002842 return 1;
2843}
2844
Willy Tarreaua275a372018-08-21 14:50:44 +02002845/* Parses the "enable frontend" directive, it always returns 1.
2846 *
2847 * Grabs the proxy lock.
2848 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002849static int cli_parse_enable_frontend(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau15b9e682016-11-24 11:55:28 +01002850{
2851 struct proxy *px;
Willy Tarreaua275a372018-08-21 14:50:44 +02002852 int ret;
Willy Tarreau15b9e682016-11-24 11:55:28 +01002853
2854 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2855 return 1;
2856
2857 px = cli_find_frontend(appctx, args[2]);
2858 if (!px)
2859 return 1;
2860
Willy Tarreauc3914d42020-09-24 08:39:22 +02002861 if (px->disabled)
Willy Tarreau9d008692019-08-09 11:21:01 +02002862 return cli_err(appctx, "Frontend was previously shut down, cannot enable.\n");
Willy Tarreau15b9e682016-11-24 11:55:28 +01002863
Willy Tarreauf18d9682020-09-24 08:04:27 +02002864 if (px->li_ready == px->li_all)
2865 return cli_msg(appctx, LOG_NOTICE, "All sockets are already enabled.\n");
Willy Tarreau15b9e682016-11-24 11:55:28 +01002866
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002867 HA_RWLOCK_WRLOCK(PROXY_LOCK, &px->lock);
Willy Tarreaua275a372018-08-21 14:50:44 +02002868 ret = resume_proxy(px);
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002869 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &px->lock);
Willy Tarreaua275a372018-08-21 14:50:44 +02002870
Willy Tarreau9d008692019-08-09 11:21:01 +02002871 if (!ret)
2872 return cli_err(appctx, "Failed to resume frontend, check logs for precise cause (port conflict?).\n");
Willy Tarreau15b9e682016-11-24 11:55:28 +01002873 return 1;
2874}
2875
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002876/* "show errors" handler for the CLI. Returns 0 if wants to continue, 1 to stop
2877 * now.
2878 */
2879static int cli_parse_show_errors(char **args, char *payload, struct appctx *appctx, void *private)
2880{
2881 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
2882 return 1;
2883
2884 if (*args[2]) {
2885 struct proxy *px;
2886
2887 px = proxy_find_by_name(args[2], 0, 0);
2888 if (px)
2889 appctx->ctx.errors.iid = px->uuid;
2890 else
2891 appctx->ctx.errors.iid = atoi(args[2]);
2892
Willy Tarreau9d008692019-08-09 11:21:01 +02002893 if (!appctx->ctx.errors.iid)
2894 return cli_err(appctx, "No such proxy.\n");
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002895 }
2896 else
2897 appctx->ctx.errors.iid = -1; // dump all proxies
2898
2899 appctx->ctx.errors.flag = 0;
2900 if (strcmp(args[3], "request") == 0)
2901 appctx->ctx.errors.flag |= 4; // ignore response
2902 else if (strcmp(args[3], "response") == 0)
2903 appctx->ctx.errors.flag |= 2; // ignore request
2904 appctx->ctx.errors.px = NULL;
2905 return 0;
2906}
2907
2908/* This function dumps all captured errors onto the stream interface's
2909 * read buffer. It returns 0 if the output buffer is full and it needs
2910 * to be called again, otherwise non-zero.
2911 */
2912static int cli_io_handler_show_errors(struct appctx *appctx)
2913{
2914 struct stream_interface *si = appctx->owner;
2915 extern const char *monthname[12];
2916
2917 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW)))
2918 return 1;
2919
2920 chunk_reset(&trash);
2921
2922 if (!appctx->ctx.errors.px) {
2923 /* the function had not been called yet, let's prepare the
2924 * buffer for a response.
2925 */
2926 struct tm tm;
2927
2928 get_localtime(date.tv_sec, &tm);
2929 chunk_appendf(&trash, "Total events captured on [%02d/%s/%04d:%02d:%02d:%02d.%03d] : %u\n",
2930 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
2931 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(date.tv_usec/1000),
2932 error_snapshot_id);
2933
Willy Tarreau36b27362018-09-07 19:55:44 +02002934 if (ci_putchk(si_ic(si), &trash) == -1)
2935 goto cant_send;
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002936
2937 appctx->ctx.errors.px = proxies_list;
2938 appctx->ctx.errors.bol = 0;
2939 appctx->ctx.errors.ptr = -1;
2940 }
2941
2942 /* we have two inner loops here, one for the proxy, the other one for
2943 * the buffer.
2944 */
2945 while (appctx->ctx.errors.px) {
2946 struct error_snapshot *es;
2947
Willy Tarreau55039082020-10-20 17:38:10 +02002948 HA_RWLOCK_RDLOCK(PROXY_LOCK, &appctx->ctx.errors.px->lock);
Willy Tarreau36b27362018-09-07 19:55:44 +02002949
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002950 if ((appctx->ctx.errors.flag & 1) == 0) {
Willy Tarreauc55015e2018-09-07 19:02:32 +02002951 es = appctx->ctx.errors.px->invalid_req;
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002952 if (appctx->ctx.errors.flag & 2) // skip req
2953 goto next;
2954 }
2955 else {
Willy Tarreauc55015e2018-09-07 19:02:32 +02002956 es = appctx->ctx.errors.px->invalid_rep;
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002957 if (appctx->ctx.errors.flag & 4) // skip resp
2958 goto next;
2959 }
2960
Willy Tarreauc55015e2018-09-07 19:02:32 +02002961 if (!es)
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002962 goto next;
2963
2964 if (appctx->ctx.errors.iid >= 0 &&
2965 appctx->ctx.errors.px->uuid != appctx->ctx.errors.iid &&
Olivier Houchardbdb00c52020-03-12 15:30:17 +01002966 (!es->oe || es->oe->uuid != appctx->ctx.errors.iid))
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002967 goto next;
2968
2969 if (appctx->ctx.errors.ptr < 0) {
2970 /* just print headers now */
2971
2972 char pn[INET6_ADDRSTRLEN];
2973 struct tm tm;
2974 int port;
2975
2976 get_localtime(es->when.tv_sec, &tm);
2977 chunk_appendf(&trash, " \n[%02d/%s/%04d:%02d:%02d:%02d.%03d]",
2978 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
2979 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(es->when.tv_usec/1000));
2980
2981 switch (addr_to_str(&es->src, pn, sizeof(pn))) {
2982 case AF_INET:
2983 case AF_INET6:
2984 port = get_host_port(&es->src);
2985 break;
2986 default:
2987 port = 0;
2988 }
2989
2990 switch (appctx->ctx.errors.flag & 1) {
2991 case 0:
2992 chunk_appendf(&trash,
2993 " frontend %s (#%d): invalid request\n"
2994 " backend %s (#%d)",
2995 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
Olivier Houchardbdb00c52020-03-12 15:30:17 +01002996 (es->oe && es->oe->cap & PR_CAP_BE) ? es->oe->id : "<NONE>",
2997 (es->oe && es->oe->cap & PR_CAP_BE) ? es->oe->uuid : -1);
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002998 break;
2999 case 1:
3000 chunk_appendf(&trash,
3001 " backend %s (#%d): invalid response\n"
3002 " frontend %s (#%d)",
3003 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
Olivier Houchardbdb00c52020-03-12 15:30:17 +01003004 es->oe ? es->oe->id : "<NONE>" , es->oe ? es->oe->uuid : -1);
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003005 break;
3006 }
3007
3008 chunk_appendf(&trash,
3009 ", server %s (#%d), event #%u, src %s:%d\n"
3010 " buffer starts at %llu (including %u out), %u free,\n"
3011 " len %u, wraps at %u, error at position %u\n",
3012 es->srv ? es->srv->id : "<NONE>",
3013 es->srv ? es->srv->puid : -1,
3014 es->ev_id, pn, port,
3015 es->buf_ofs, es->buf_out,
3016 global.tune.bufsize - es->buf_out - es->buf_len,
3017 es->buf_len, es->buf_wrap, es->buf_err);
3018
3019 if (es->show)
3020 es->show(&trash, es);
3021
3022 chunk_appendf(&trash, " \n");
3023
Willy Tarreau36b27362018-09-07 19:55:44 +02003024 if (ci_putchk(si_ic(si), &trash) == -1)
3025 goto cant_send_unlock;
3026
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003027 appctx->ctx.errors.ptr = 0;
3028 appctx->ctx.errors.ev_id = es->ev_id;
3029 }
3030
3031 if (appctx->ctx.errors.ev_id != es->ev_id) {
3032 /* the snapshot changed while we were dumping it */
3033 chunk_appendf(&trash,
3034 " WARNING! update detected on this snapshot, dump interrupted. Please re-check!\n");
Willy Tarreau36b27362018-09-07 19:55:44 +02003035 if (ci_putchk(si_ic(si), &trash) == -1)
3036 goto cant_send_unlock;
3037
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003038 goto next;
3039 }
3040
3041 /* OK, ptr >= 0, so we have to dump the current line */
Willy Tarreau4bc7d902018-09-07 20:07:17 +02003042 while (appctx->ctx.errors.ptr < es->buf_len && appctx->ctx.errors.ptr < global.tune.bufsize) {
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003043 int newptr;
3044 int newline;
3045
3046 newline = appctx->ctx.errors.bol;
3047 newptr = dump_text_line(&trash, es->buf, global.tune.bufsize, es->buf_len, &newline, appctx->ctx.errors.ptr);
3048 if (newptr == appctx->ctx.errors.ptr)
Willy Tarreau36b27362018-09-07 19:55:44 +02003049 goto cant_send_unlock;
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003050
Willy Tarreau36b27362018-09-07 19:55:44 +02003051 if (ci_putchk(si_ic(si), &trash) == -1)
3052 goto cant_send_unlock;
3053
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003054 appctx->ctx.errors.ptr = newptr;
3055 appctx->ctx.errors.bol = newline;
3056 };
3057 next:
Willy Tarreau55039082020-10-20 17:38:10 +02003058 HA_RWLOCK_RDUNLOCK(PROXY_LOCK, &appctx->ctx.errors.px->lock);
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003059 appctx->ctx.errors.bol = 0;
3060 appctx->ctx.errors.ptr = -1;
3061 appctx->ctx.errors.flag ^= 1;
3062 if (!(appctx->ctx.errors.flag & 1))
3063 appctx->ctx.errors.px = appctx->ctx.errors.px->next;
3064 }
3065
3066 /* dump complete */
3067 return 1;
Willy Tarreau36b27362018-09-07 19:55:44 +02003068
3069 cant_send_unlock:
Willy Tarreau55039082020-10-20 17:38:10 +02003070 HA_RWLOCK_RDUNLOCK(PROXY_LOCK, &appctx->ctx.errors.px->lock);
Willy Tarreau36b27362018-09-07 19:55:44 +02003071 cant_send:
Willy Tarreaudb398432018-11-15 11:08:52 +01003072 si_rx_room_blk(si);
Willy Tarreau36b27362018-09-07 19:55:44 +02003073 return 0;
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003074}
3075
William Lallemanda6c5f332016-11-19 02:25:36 +01003076/* register cli keywords */
3077static struct cli_kw_list cli_kws = {{ },{
Willy Tarreau15b9e682016-11-24 11:55:28 +01003078 { { "disable", "frontend", NULL }, "disable frontend : temporarily disable specific frontend", cli_parse_disable_frontend, NULL, NULL },
3079 { { "enable", "frontend", NULL }, "enable frontend : re-enable specific frontend", cli_parse_enable_frontend, NULL, NULL },
Willy Tarreauc429a1f2016-11-23 16:22:04 +01003080 { { "set", "maxconn", "frontend", NULL }, "set maxconn frontend : change a frontend's maxconn setting", cli_parse_set_maxconn_frontend, NULL },
Willy Tarreau69f591e2020-07-01 07:00:59 +02003081 { { "show","servers", "conn", NULL }, "show servers conn [id]: dump server connections status (for backend <id>)", cli_parse_show_servers, cli_io_handler_servers_state },
William Lallemanda6c5f332016-11-19 02:25:36 +01003082 { { "show","servers", "state", NULL }, "show servers state [id]: dump volatile server information (for backend <id>)", cli_parse_show_servers, cli_io_handler_servers_state },
Willy Tarreau608ea592016-12-16 18:01:15 +01003083 { { "show", "backend", NULL }, "show backend : list backends in the current running config", NULL, cli_io_handler_show_backend },
Willy Tarreau5212d7f2016-11-24 11:13:06 +01003084 { { "shutdown", "frontend", NULL }, "shutdown frontend : stop a specific frontend", cli_parse_shutdown_frontend, NULL, NULL },
Olivier Houchard614f8d72017-03-14 20:08:46 +01003085 { { "set", "dynamic-cookie-key", "backend", NULL }, "set dynamic-cookie-key backend : change a backend secret key for dynamic cookies", cli_parse_set_dyncookie_key_backend, NULL },
3086 { { "enable", "dynamic-cookie", "backend", NULL }, "enable dynamic-cookie backend : enable dynamic cookies on a specific backend", cli_parse_enable_dyncookie_backend, NULL },
3087 { { "disable", "dynamic-cookie", "backend", NULL }, "disable dynamic-cookie backend : disable dynamic cookies on a specific backend", cli_parse_disable_dyncookie_backend, NULL },
Willy Tarreauddb68ac2018-09-07 18:34:24 +02003088 { { "show", "errors", NULL }, "show errors : report last request and response errors for each proxy", cli_parse_show_errors, cli_io_handler_show_errors, NULL },
William Lallemanda6c5f332016-11-19 02:25:36 +01003089 {{},}
3090}};
3091
Willy Tarreau0108d902018-11-25 19:14:37 +01003092INITCALL1(STG_REGISTER, cli_register_kw, &cli_kws);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003093
3094/*
3095 * Local variables:
3096 * c-indent-level: 8
3097 * c-basic-offset: 8
3098 * End:
3099 */