blob: de66140ecc102107f50bf7c3728a2c04e14f874a [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
Willy Tarreau4c7e4b72020-05-27 12:58:42 +020023#include <haproxy/api.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020024#include <haproxy/applet-t.h>
25#include <haproxy/capture-t.h>
Willy Tarreau6be78492020-06-05 00:00:29 +020026#include <haproxy/cfgparse.h>
Willy Tarreau83487a82020-06-04 20:19:54 +020027#include <haproxy/cli.h>
Willy Tarreau8d366972020-05-27 16:10:29 +020028#include <haproxy/errors.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020029#include <haproxy/fd.h>
Willy Tarreauc7babd82020-06-04 21:29:29 +020030#include <haproxy/filters.h>
Willy Tarreauf268ee82020-06-04 17:05:57 +020031#include <haproxy/global.h>
Willy Tarreauc2b1ff02020-06-04 21:21:03 +020032#include <haproxy/http_ana.h>
Willy Tarreau76838932021-02-12 08:49:47 +010033#include <haproxy/http_htx.h>
Willy Tarreau213e9902020-06-04 14:58:24 +020034#include <haproxy/listener.h>
Willy Tarreauaeed4a82020-06-04 22:01:04 +020035#include <haproxy/log.h>
Willy Tarreau8efbdfb2020-06-04 11:29:21 +020036#include <haproxy/obj_type-t.h>
Willy Tarreau3c2a7c22020-06-04 18:38:21 +020037#include <haproxy/peers.h>
Willy Tarreaud0ef4392020-06-02 09:38:52 +020038#include <haproxy/pool.h>
Willy Tarreau626f3a72020-10-07 16:52:43 +020039#include <haproxy/protocol.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020040#include <haproxy/proto_tcp.h>
Willy Tarreaua264d962020-06-04 22:29:18 +020041#include <haproxy/proxy.h>
Willy Tarreau1e56f922020-06-04 23:20:13 +020042#include <haproxy/server-t.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020043#include <haproxy/signal.h>
Willy Tarreau2eec9b52020-06-04 19:58:55 +020044#include <haproxy/stats-t.h>
Willy Tarreaudfd3de82020-06-04 23:46:14 +020045#include <haproxy/stream.h>
Willy Tarreau5e539c92020-06-04 20:45:39 +020046#include <haproxy/stream_interface.h>
Willy Tarreaucea0e1b2020-06-04 17:25:40 +020047#include <haproxy/task.h>
Willy Tarreau76838932021-02-12 08:49:47 +010048#include <haproxy/tcpcheck.h>
Willy Tarreau92b4f132020-06-01 11:05:15 +020049#include <haproxy/time.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020050
Willy Tarreaubaaee002006-06-26 02:48:02 +020051
Willy Tarreau918ff602011-07-25 16:33:49 +020052int listeners; /* # of proxy listeners, set by cfgparse */
Olivier Houchardfbc74e82017-11-24 16:54:05 +010053struct proxy *proxies_list = NULL; /* list of all existing proxies */
Willy Tarreau53fb4ae2009-10-04 23:04:08 +020054struct eb_root used_proxy_id = EB_ROOT; /* list of proxy IDs in use */
Willy Tarreauf79d9502014-03-15 07:22:35 +010055struct eb_root proxy_by_name = EB_ROOT; /* tree of proxies sorted by name */
Willy Tarreau0a0f6a72021-02-12 13:52:11 +010056struct eb_root defproxy_by_name = EB_ROOT; /* tree of default proxies sorted by name (dups possible) */
Willy Tarreau10479e42010-12-12 14:00:34 +010057unsigned int error_snapshot_id = 0; /* global ID assigned to each error then incremented */
Willy Tarreaubaaee002006-06-26 02:48:02 +020058
Willy Tarreau3a1f5fd2018-11-11 15:40:36 +010059/* proxy->options */
60const struct cfg_opt cfg_opts[] =
61{
62 { "abortonclose", PR_O_ABRT_CLOSE, PR_CAP_BE, 0, 0 },
63 { "allbackups", PR_O_USE_ALL_BK, PR_CAP_BE, 0, 0 },
64 { "checkcache", PR_O_CHK_CACHE, PR_CAP_BE, 0, PR_MODE_HTTP },
65 { "clitcpka", PR_O_TCP_CLI_KA, PR_CAP_FE, 0, 0 },
66 { "contstats", PR_O_CONTSTATS, PR_CAP_FE, 0, 0 },
67 { "dontlognull", PR_O_NULLNOLOG, PR_CAP_FE, 0, 0 },
68 { "http_proxy", PR_O_HTTP_PROXY, PR_CAP_FE | PR_CAP_BE, 0, PR_MODE_HTTP },
69 { "http-buffer-request", PR_O_WREQ_BODY, PR_CAP_FE | PR_CAP_BE, 0, PR_MODE_HTTP },
70 { "http-ignore-probes", PR_O_IGNORE_PRB, PR_CAP_FE, 0, PR_MODE_HTTP },
71 { "prefer-last-server", PR_O_PREF_LAST, PR_CAP_BE, 0, PR_MODE_HTTP },
72 { "logasap", PR_O_LOGASAP, PR_CAP_FE, 0, 0 },
73 { "nolinger", PR_O_TCP_NOLING, PR_CAP_FE | PR_CAP_BE, 0, 0 },
74 { "persist", PR_O_PERSIST, PR_CAP_BE, 0, 0 },
75 { "srvtcpka", PR_O_TCP_SRV_KA, PR_CAP_BE, 0, 0 },
Willy Tarreaue5733232019-05-22 19:24:06 +020076#ifdef USE_TPROXY
Willy Tarreau3a1f5fd2018-11-11 15:40:36 +010077 { "transparent", PR_O_TRANSP, PR_CAP_BE, 0, 0 },
78#else
79 { "transparent", 0, 0, 0, 0 },
80#endif
81
82 { NULL, 0, 0, 0, 0 }
83};
84
85/* proxy->options2 */
86const struct cfg_opt cfg_opts2[] =
87{
Willy Tarreaue5733232019-05-22 19:24:06 +020088#ifdef USE_LINUX_SPLICE
Willy Tarreau3a1f5fd2018-11-11 15:40:36 +010089 { "splice-request", PR_O2_SPLIC_REQ, PR_CAP_FE|PR_CAP_BE, 0, 0 },
90 { "splice-response", PR_O2_SPLIC_RTR, PR_CAP_FE|PR_CAP_BE, 0, 0 },
91 { "splice-auto", PR_O2_SPLIC_AUT, PR_CAP_FE|PR_CAP_BE, 0, 0 },
92#else
93 { "splice-request", 0, 0, 0, 0 },
94 { "splice-response", 0, 0, 0, 0 },
95 { "splice-auto", 0, 0, 0, 0 },
96#endif
97 { "accept-invalid-http-request", PR_O2_REQBUG_OK, PR_CAP_FE, 0, PR_MODE_HTTP },
98 { "accept-invalid-http-response", PR_O2_RSPBUG_OK, PR_CAP_BE, 0, PR_MODE_HTTP },
99 { "dontlog-normal", PR_O2_NOLOGNORM, PR_CAP_FE, 0, 0 },
100 { "log-separate-errors", PR_O2_LOGERRORS, PR_CAP_FE, 0, 0 },
101 { "log-health-checks", PR_O2_LOGHCHKS, PR_CAP_BE, 0, 0 },
102 { "socket-stats", PR_O2_SOCKSTAT, PR_CAP_FE, 0, 0 },
103 { "tcp-smart-accept", PR_O2_SMARTACC, PR_CAP_FE, 0, 0 },
104 { "tcp-smart-connect", PR_O2_SMARTCON, PR_CAP_BE, 0, 0 },
Willy Tarreau3a1f5fd2018-11-11 15:40:36 +0100105 { "independent-streams", PR_O2_INDEPSTR, PR_CAP_FE|PR_CAP_BE, 0, 0 },
106 { "http-use-proxy-header", PR_O2_USE_PXHDR, PR_CAP_FE, 0, PR_MODE_HTTP },
107 { "http-pretend-keepalive", PR_O2_FAKE_KA, PR_CAP_BE, 0, PR_MODE_HTTP },
108 { "http-no-delay", PR_O2_NODELAY, PR_CAP_FE|PR_CAP_BE, 0, PR_MODE_HTTP },
Christopher Faulet31930372019-07-15 10:16:58 +0200109 { "http-use-htx", 0, PR_CAP_FE|PR_CAP_BE, 0, 0 }, // deprecated
Christopher Faulet98fbe952019-07-22 16:18:24 +0200110
111 {"h1-case-adjust-bogus-client", PR_O2_H1_ADJ_BUGCLI, PR_CAP_FE, 0, PR_MODE_HTTP },
112 {"h1-case-adjust-bogus-server", PR_O2_H1_ADJ_BUGSRV, PR_CAP_BE, 0, PR_MODE_HTTP },
Christopher Faulet89aed322020-06-02 17:33:56 +0200113 {"disable-h2-upgrade", PR_O2_NO_H2_UPGRADE, PR_CAP_FE, 0, PR_MODE_HTTP },
Willy Tarreau3a1f5fd2018-11-11 15:40:36 +0100114 { NULL, 0, 0, 0 }
115};
116
Willy Tarreau977b8e42006-12-29 14:19:17 +0100117/*
Willy Tarreau816eb542007-11-04 07:04:43 +0100118 * This function returns a string containing a name describing capabilities to
119 * report comprehensible error messages. Specifically, it will return the words
Willy Tarreau80dc6fe2021-02-12 09:43:33 +0100120 * "frontend", "backend" when appropriate, "defaults" if it corresponds to a
121 * defaults section, or "proxy" for all other cases including the proxies
122 * declared in "listen" mode.
Willy Tarreau977b8e42006-12-29 14:19:17 +0100123 */
Willy Tarreau816eb542007-11-04 07:04:43 +0100124const char *proxy_cap_str(int cap)
Willy Tarreau977b8e42006-12-29 14:19:17 +0100125{
Willy Tarreau80dc6fe2021-02-12 09:43:33 +0100126 if (cap & PR_CAP_DEF)
127 return "defaults";
128
Willy Tarreau816eb542007-11-04 07:04:43 +0100129 if ((cap & PR_CAP_LISTEN) != PR_CAP_LISTEN) {
130 if (cap & PR_CAP_FE)
131 return "frontend";
132 else if (cap & PR_CAP_BE)
133 return "backend";
Willy Tarreau816eb542007-11-04 07:04:43 +0100134 }
135 return "proxy";
Willy Tarreau977b8e42006-12-29 14:19:17 +0100136}
137
Krzysztof Piotr Oledzki6eb730d2007-11-03 23:41:58 +0100138/*
139 * This function returns a string containing the mode of the proxy in a format
140 * suitable for error messages.
141 */
Krzysztof Piotr Oledzki6eb730d2007-11-03 23:41:58 +0100142const char *proxy_mode_str(int mode) {
143
144 if (mode == PR_MODE_TCP)
145 return "tcp";
146 else if (mode == PR_MODE_HTTP)
147 return "http";
William Lallemandcf62f7e2018-10-26 14:47:40 +0200148 else if (mode == PR_MODE_CLI)
149 return "cli";
Krzysztof Piotr Oledzki6eb730d2007-11-03 23:41:58 +0100150 else
151 return "unknown";
152}
153
Willy Tarreauf3950172009-10-10 18:35:51 +0200154/*
155 * This function scans the list of backends and servers to retrieve the first
156 * backend and the first server with the given names, and sets them in both
157 * parameters. It returns zero if either is not found, or non-zero and sets
158 * the ones it did not found to NULL. If a NULL pointer is passed for the
159 * backend, only the pointer to the server will be updated.
160 */
161int get_backend_server(const char *bk_name, const char *sv_name,
162 struct proxy **bk, struct server **sv)
163{
164 struct proxy *p;
165 struct server *s;
Willy Tarreau7ecc4202014-03-15 07:57:11 +0100166 int sid;
Willy Tarreauf3950172009-10-10 18:35:51 +0200167
168 *sv = NULL;
169
Willy Tarreau050536d2012-10-04 08:47:34 +0200170 sid = -1;
Willy Tarreaucfeaa472009-10-10 22:33:08 +0200171 if (*sv_name == '#')
172 sid = atoi(sv_name + 1);
173
Willy Tarreau9e0bb102015-05-26 11:24:42 +0200174 p = proxy_be_by_name(bk_name);
Willy Tarreauf3950172009-10-10 18:35:51 +0200175 if (bk)
176 *bk = p;
177 if (!p)
178 return 0;
179
180 for (s = p->srv; s; s = s->next)
Willy Tarreau4055a102012-11-15 00:15:18 +0100181 if ((sid >= 0 && s->puid == sid) ||
182 (sid < 0 && strcmp(s->id, sv_name) == 0))
Willy Tarreauf3950172009-10-10 18:35:51 +0200183 break;
184 *sv = s;
185 if (!s)
186 return 0;
187 return 1;
188}
189
Willy Tarreaue219db72007-12-03 01:30:13 +0100190/* This function parses a "timeout" statement in a proxy section. It returns
191 * -1 if there is any error, 1 for a warning, otherwise zero. If it does not
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200192 * return zero, it will write an error or warning message into a preallocated
193 * buffer returned at <err>. The trailing is not be written. The function must
194 * be called with <args> pointing to the first command line word, with <proxy>
195 * pointing to the proxy being parsed, and <defpx> to the default proxy or NULL.
196 * As a special case for compatibility with older configs, it also accepts
197 * "{cli|srv|con}timeout" in args[0].
Willy Tarreaue219db72007-12-03 01:30:13 +0100198 */
Willy Tarreau9de1bbd2008-07-09 20:34:27 +0200199static int proxy_parse_timeout(char **args, int section, struct proxy *proxy,
Willy Tarreau28a47d62012-09-18 20:02:48 +0200200 struct proxy *defpx, const char *file, int line,
201 char **err)
Willy Tarreaue219db72007-12-03 01:30:13 +0100202{
203 unsigned timeout;
204 int retval, cap;
205 const char *res, *name;
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200206 int *tv = NULL;
207 int *td = NULL;
Willy Tarreaue219db72007-12-03 01:30:13 +0100208
209 retval = 0;
Willy Tarreau9de1bbd2008-07-09 20:34:27 +0200210
211 /* simply skip "timeout" but remain compatible with old form */
212 if (strcmp(args[0], "timeout") == 0)
213 args++;
214
Willy Tarreaue219db72007-12-03 01:30:13 +0100215 name = args[0];
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100216 if (strcmp(args[0], "client") == 0) {
Willy Tarreaue219db72007-12-03 01:30:13 +0100217 name = "client";
Willy Tarreaud7c30f92007-12-03 01:38:36 +0100218 tv = &proxy->timeout.client;
219 td = &defpx->timeout.client;
Willy Tarreaue219db72007-12-03 01:30:13 +0100220 cap = PR_CAP_FE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100221 } else if (strcmp(args[0], "tarpit") == 0) {
Willy Tarreaue219db72007-12-03 01:30:13 +0100222 tv = &proxy->timeout.tarpit;
223 td = &defpx->timeout.tarpit;
Willy Tarreau51c9bde2008-01-06 13:40:03 +0100224 cap = PR_CAP_FE | PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100225 } else if (strcmp(args[0], "http-keep-alive") == 0) {
Willy Tarreaub16a5742010-01-10 14:46:16 +0100226 tv = &proxy->timeout.httpka;
227 td = &defpx->timeout.httpka;
228 cap = PR_CAP_FE | PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100229 } else if (strcmp(args[0], "http-request") == 0) {
Willy Tarreau036fae02008-01-06 13:24:40 +0100230 tv = &proxy->timeout.httpreq;
231 td = &defpx->timeout.httpreq;
Willy Tarreaucd7afc02009-07-12 10:03:17 +0200232 cap = PR_CAP_FE | PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100233 } else if (strcmp(args[0], "server") == 0) {
Willy Tarreaue219db72007-12-03 01:30:13 +0100234 name = "server";
Willy Tarreaud7c30f92007-12-03 01:38:36 +0100235 tv = &proxy->timeout.server;
236 td = &defpx->timeout.server;
Willy Tarreaue219db72007-12-03 01:30:13 +0100237 cap = PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100238 } else if (strcmp(args[0], "connect") == 0) {
Willy Tarreaue219db72007-12-03 01:30:13 +0100239 name = "connect";
Willy Tarreaud7c30f92007-12-03 01:38:36 +0100240 tv = &proxy->timeout.connect;
241 td = &defpx->timeout.connect;
Willy Tarreaue219db72007-12-03 01:30:13 +0100242 cap = PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100243 } else if (strcmp(args[0], "check") == 0) {
Krzysztof Piotr Oledzki5259dfe2008-01-21 01:54:06 +0100244 tv = &proxy->timeout.check;
245 td = &defpx->timeout.check;
246 cap = PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100247 } else if (strcmp(args[0], "queue") == 0) {
Willy Tarreaue219db72007-12-03 01:30:13 +0100248 tv = &proxy->timeout.queue;
249 td = &defpx->timeout.queue;
250 cap = PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100251 } else if (strcmp(args[0], "tunnel") == 0) {
Willy Tarreauce887fd2012-05-12 12:50:00 +0200252 tv = &proxy->timeout.tunnel;
253 td = &defpx->timeout.tunnel;
254 cap = PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100255 } else if (strcmp(args[0], "client-fin") == 0) {
Willy Tarreau05cdd962014-05-10 14:30:07 +0200256 tv = &proxy->timeout.clientfin;
257 td = &defpx->timeout.clientfin;
258 cap = PR_CAP_FE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100259 } else if (strcmp(args[0], "server-fin") == 0) {
Willy Tarreau05cdd962014-05-10 14:30:07 +0200260 tv = &proxy->timeout.serverfin;
261 td = &defpx->timeout.serverfin;
262 cap = PR_CAP_BE;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100263 } else if (strcmp(args[0], "clitimeout") == 0) {
Tim Duesterhus86e6b6e2019-05-14 20:57:59 +0200264 memprintf(err, "the '%s' directive is not supported anymore since HAProxy 2.1. Use 'timeout client'.", args[0]);
265 return -1;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100266 } else if (strcmp(args[0], "srvtimeout") == 0) {
Tim Duesterhus86e6b6e2019-05-14 20:57:59 +0200267 memprintf(err, "the '%s' directive is not supported anymore since HAProxy 2.1. Use 'timeout server'.", args[0]);
268 return -1;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100269 } else if (strcmp(args[0], "contimeout") == 0) {
Tim Duesterhus86e6b6e2019-05-14 20:57:59 +0200270 memprintf(err, "the '%s' directive is not supported anymore since HAProxy 2.1. Use 'timeout connect'.", args[0]);
271 return -1;
Willy Tarreaue219db72007-12-03 01:30:13 +0100272 } else {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200273 memprintf(err,
274 "'timeout' supports 'client', 'server', 'connect', 'check', "
Willy Tarreau05cdd962014-05-10 14:30:07 +0200275 "'queue', 'http-keep-alive', 'http-request', 'tunnel', 'tarpit', "
276 "'client-fin' and 'server-fin' (got '%s')",
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200277 args[0]);
Willy Tarreaue219db72007-12-03 01:30:13 +0100278 return -1;
279 }
280
281 if (*args[1] == 0) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200282 memprintf(err, "'timeout %s' expects an integer value (in milliseconds)", name);
Willy Tarreaue219db72007-12-03 01:30:13 +0100283 return -1;
284 }
285
286 res = parse_time_err(args[1], &timeout, TIME_UNIT_MS);
Willy Tarreau9faebe32019-06-07 19:00:37 +0200287 if (res == PARSE_TIME_OVER) {
288 memprintf(err, "timer overflow in argument '%s' to 'timeout %s' (maximum value is 2147483647 ms or ~24.8 days)",
289 args[1], name);
290 return -1;
291 }
292 else if (res == PARSE_TIME_UNDER) {
293 memprintf(err, "timer underflow in argument '%s' to 'timeout %s' (minimum non-null value is 1 ms)",
294 args[1], name);
295 return -1;
296 }
297 else if (res) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200298 memprintf(err, "unexpected character '%c' in 'timeout %s'", *res, name);
Willy Tarreaue219db72007-12-03 01:30:13 +0100299 return -1;
300 }
301
302 if (!(proxy->cap & cap)) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200303 memprintf(err, "'timeout %s' will be ignored because %s '%s' has no %s capability",
304 name, proxy_type_str(proxy), proxy->id,
305 (cap & PR_CAP_BE) ? "backend" : "frontend");
Willy Tarreaue219db72007-12-03 01:30:13 +0100306 retval = 1;
307 }
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200308 else if (defpx && *tv != *td) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200309 memprintf(err, "overwriting 'timeout %s' which was already specified", name);
Willy Tarreaue219db72007-12-03 01:30:13 +0100310 retval = 1;
311 }
312
Willy Tarreaufac5b592014-05-22 08:24:46 +0200313 if (*args[2] != 0) {
314 memprintf(err, "'timeout %s' : unexpected extra argument '%s' after value '%s'.", name, args[2], args[1]);
315 retval = -1;
316 }
317
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200318 *tv = MS_TO_TICKS(timeout);
Willy Tarreaue219db72007-12-03 01:30:13 +0100319 return retval;
320}
321
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100322/* This function parses a "rate-limit" statement in a proxy section. It returns
323 * -1 if there is any error, 1 for a warning, otherwise zero. If it does not
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200324 * return zero, it will write an error or warning message into a preallocated
325 * buffer returned at <err>. The function must be called with <args> pointing
326 * to the first command line word, with <proxy> pointing to the proxy being
327 * parsed, and <defpx> to the default proxy or NULL.
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100328 */
329static int proxy_parse_rate_limit(char **args, int section, struct proxy *proxy,
Willy Tarreau28a47d62012-09-18 20:02:48 +0200330 struct proxy *defpx, const char *file, int line,
331 char **err)
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100332{
William Dauchybb9da0b2020-01-16 01:34:27 +0100333 int retval;
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200334 char *res;
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100335 unsigned int *tv = NULL;
336 unsigned int *td = NULL;
337 unsigned int val;
338
339 retval = 0;
340
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200341 if (strcmp(args[1], "sessions") == 0) {
Willy Tarreau13a34bd2009-05-10 18:52:49 +0200342 tv = &proxy->fe_sps_lim;
343 td = &defpx->fe_sps_lim;
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200344 }
345 else {
346 memprintf(err, "'%s' only supports 'sessions' (got '%s')", args[0], args[1]);
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100347 return -1;
348 }
349
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200350 if (*args[2] == 0) {
351 memprintf(err, "'%s %s' expects expects an integer value (in sessions/second)", args[0], args[1]);
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100352 return -1;
353 }
354
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200355 val = strtoul(args[2], &res, 0);
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100356 if (*res) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200357 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 +0100358 return -1;
359 }
360
William Dauchybb9da0b2020-01-16 01:34:27 +0100361 if (!(proxy->cap & PR_CAP_FE)) {
362 memprintf(err, "%s %s will be ignored because %s '%s' has no frontend capability",
363 args[0], args[1], proxy_type_str(proxy), proxy->id);
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100364 retval = 1;
365 }
366 else if (defpx && *tv != *td) {
Willy Tarreau0a3dd742012-05-08 19:47:01 +0200367 memprintf(err, "overwriting %s %s which was already specified", args[0], args[1]);
Willy Tarreau3a7d2072009-03-05 23:48:25 +0100368 retval = 1;
369 }
370
371 *tv = val;
372 return retval;
373}
374
Willy Tarreauc35362a2014-04-25 13:58:37 +0200375/* This function parses a "max-keep-alive-queue" statement in a proxy section.
376 * It returns -1 if there is any error, 1 for a warning, otherwise zero. If it
377 * does not return zero, it will write an error or warning message into a
378 * preallocated buffer returned at <err>. The function must be called with
379 * <args> pointing to the first command line word, with <proxy> pointing to
380 * the proxy being parsed, and <defpx> to the default proxy or NULL.
381 */
382static int proxy_parse_max_ka_queue(char **args, int section, struct proxy *proxy,
383 struct proxy *defpx, const char *file, int line,
384 char **err)
385{
386 int retval;
387 char *res;
388 unsigned int val;
389
390 retval = 0;
391
392 if (*args[1] == 0) {
393 memprintf(err, "'%s' expects expects an integer value (or -1 to disable)", args[0]);
394 return -1;
395 }
396
397 val = strtol(args[1], &res, 0);
398 if (*res) {
399 memprintf(err, "'%s' : unexpected character '%c' in integer value '%s'", args[0], *res, args[1]);
400 return -1;
401 }
402
403 if (!(proxy->cap & PR_CAP_BE)) {
404 memprintf(err, "%s will be ignored because %s '%s' has no backend capability",
405 args[0], proxy_type_str(proxy), proxy->id);
406 retval = 1;
407 }
408
409 /* we store <val+1> so that a user-facing value of -1 is stored as zero (default) */
410 proxy->max_ka_queue = val + 1;
411 return retval;
412}
413
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +0200414/* This function parses a "declare" statement in a proxy section. It returns -1
415 * if there is any error, 1 for warning, otherwise 0. If it does not return zero,
416 * it will write an error or warning message into a preallocated buffer returned
417 * at <err>. The function must be called with <args> pointing to the first command
418 * line word, with <proxy> pointing to the proxy being parsed, and <defpx> to the
419 * default proxy or NULL.
420 */
421static int proxy_parse_declare(char **args, int section, struct proxy *curpx,
422 struct proxy *defpx, const char *file, int line,
423 char **err)
424{
425 /* Capture keyword wannot be declared in a default proxy. */
426 if (curpx == defpx) {
Joseph Herlant9edebb82018-11-15 11:50:44 -0800427 memprintf(err, "'%s' not available in default section", args[0]);
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +0200428 return -1;
429 }
430
Thayne McCombs8f0cc5c2021-01-07 21:35:52 -0700431 /* Capture keyword is only available in frontend. */
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +0200432 if (!(curpx->cap & PR_CAP_FE)) {
Joseph Herlant9edebb82018-11-15 11:50:44 -0800433 memprintf(err, "'%s' only available in frontend or listen section", args[0]);
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +0200434 return -1;
435 }
436
437 /* Check mandatory second keyword. */
438 if (!args[1] || !*args[1]) {
439 memprintf(err, "'%s' needs a second keyword that specify the type of declaration ('capture')", args[0]);
440 return -1;
441 }
442
Joseph Herlant59dd2952018-11-15 11:46:55 -0800443 /* Actually, declare is only available for declaring capture
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +0200444 * slot, but in the future it can declare maps or variables.
Joseph Herlant59dd2952018-11-15 11:46:55 -0800445 * So, this section permits to check and switch according with
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +0200446 * the second keyword.
447 */
448 if (strcmp(args[1], "capture") == 0) {
449 char *error = NULL;
450 long len;
451 struct cap_hdr *hdr;
452
453 /* Check the next keyword. */
454 if (!args[2] || !*args[2] ||
455 (strcmp(args[2], "response") != 0 &&
456 strcmp(args[2], "request") != 0)) {
457 memprintf(err, "'%s %s' requires a direction ('request' or 'response')", args[0], args[1]);
458 return -1;
459 }
460
461 /* Check the 'len' keyword. */
462 if (!args[3] || !*args[3] || strcmp(args[3], "len") != 0) {
463 memprintf(err, "'%s %s' requires a capture length ('len')", args[0], args[1]);
464 return -1;
465 }
466
467 /* Check the length value. */
468 if (!args[4] || !*args[4]) {
469 memprintf(err, "'%s %s': 'len' requires a numeric value that represents the "
470 "capture length",
471 args[0], args[1]);
472 return -1;
473 }
474
475 /* convert the length value. */
476 len = strtol(args[4], &error, 10);
477 if (*error != '\0') {
478 memprintf(err, "'%s %s': cannot parse the length '%s'.",
479 args[0], args[1], args[3]);
480 return -1;
481 }
482
483 /* check length. */
484 if (len <= 0) {
485 memprintf(err, "length must be > 0");
486 return -1;
487 }
488
489 /* register the capture. */
Vincent Bernat02779b62016-04-03 13:48:43 +0200490 hdr = calloc(1, sizeof(*hdr));
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +0200491 hdr->name = NULL; /* not a header capture */
492 hdr->namelen = 0;
493 hdr->len = len;
494 hdr->pool = create_pool("caphdr", hdr->len + 1, MEM_F_SHARED);
495
496 if (strcmp(args[2], "request") == 0) {
497 hdr->next = curpx->req_cap;
498 hdr->index = curpx->nb_req_cap++;
499 curpx->req_cap = hdr;
500 }
501 if (strcmp(args[2], "response") == 0) {
502 hdr->next = curpx->rsp_cap;
503 hdr->index = curpx->nb_rsp_cap++;
504 curpx->rsp_cap = hdr;
505 }
506 return 0;
507 }
508 else {
509 memprintf(err, "unknown declaration type '%s' (supports 'capture')", args[1]);
510 return -1;
511 }
512}
513
Olivier Houcharda254a372019-04-05 15:30:12 +0200514/* This function parses a "retry-on" statement */
515static int
516proxy_parse_retry_on(char **args, int section, struct proxy *curpx,
517 struct proxy *defpx, const char *file, int line,
518 char **err)
519{
520 int i;
521
522 if (!(*args[1])) {
523 memprintf(err, "'%s' needs at least one keyword to specify when to retry", args[0]);
524 return -1;
525 }
526 if (!(curpx->cap & PR_CAP_BE)) {
527 memprintf(err, "'%s' only available in backend or listen section", args[0]);
528 return -1;
529 }
530 curpx->retry_type = 0;
531 for (i = 1; *(args[i]); i++) {
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100532 if (strcmp(args[i], "conn-failure") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200533 curpx->retry_type |= PR_RE_CONN_FAILED;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100534 else if (strcmp(args[i], "empty-response") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200535 curpx->retry_type |= PR_RE_DISCONNECTED;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100536 else if (strcmp(args[i], "response-timeout") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200537 curpx->retry_type |= PR_RE_TIMEOUT;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100538 else if (strcmp(args[i], "401") == 0)
Julien Pivotto2de240a2020-11-12 11:14:05 +0100539 curpx->retry_type |= PR_RE_401;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100540 else if (strcmp(args[i], "403") == 0)
Julien Pivotto2de240a2020-11-12 11:14:05 +0100541 curpx->retry_type |= PR_RE_403;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100542 else if (strcmp(args[i], "404") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200543 curpx->retry_type |= PR_RE_404;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100544 else if (strcmp(args[i], "408") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200545 curpx->retry_type |= PR_RE_408;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100546 else if (strcmp(args[i], "425") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200547 curpx->retry_type |= PR_RE_425;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100548 else if (strcmp(args[i], "500") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200549 curpx->retry_type |= PR_RE_500;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100550 else if (strcmp(args[i], "501") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200551 curpx->retry_type |= PR_RE_501;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100552 else if (strcmp(args[i], "502") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200553 curpx->retry_type |= PR_RE_502;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100554 else if (strcmp(args[i], "503") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200555 curpx->retry_type |= PR_RE_503;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100556 else if (strcmp(args[i], "504") == 0)
Olivier Houcharda254a372019-04-05 15:30:12 +0200557 curpx->retry_type |= PR_RE_504;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100558 else if (strcmp(args[i], "0rtt-rejected") == 0)
Olivier Houchard865d8392019-05-03 22:46:27 +0200559 curpx->retry_type |= PR_RE_EARLY_ERROR;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100560 else if (strcmp(args[i], "junk-response") == 0)
Olivier Houcharde3249a92019-05-03 23:01:47 +0200561 curpx->retry_type |= PR_RE_JUNK_REQUEST;
Olivier Houchardddf0e032019-05-10 18:05:40 +0200562 else if (!(strcmp(args[i], "all-retryable-errors")))
563 curpx->retry_type |= PR_RE_CONN_FAILED | PR_RE_DISCONNECTED |
564 PR_RE_TIMEOUT | PR_RE_500 | PR_RE_502 |
565 PR_RE_503 | PR_RE_504 | PR_RE_EARLY_ERROR |
566 PR_RE_JUNK_REQUEST;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100567 else if (strcmp(args[i], "none") == 0) {
Olivier Houcharda254a372019-04-05 15:30:12 +0200568 if (i != 1 || *args[i + 1]) {
569 memprintf(err, "'%s' 'none' keyworld only usable alone", args[0]);
570 return -1;
571 }
572 } else {
573 memprintf(err, "'%s': unknown keyword '%s'", args[0], args[i]);
574 return -1;
575 }
576
577 }
578
579
580 return 0;
581}
582
Willy Tarreau52543212020-07-09 05:58:51 +0200583#ifdef TCP_KEEPCNT
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900584/* This function parses "{cli|srv}tcpka-cnt" statements */
585static int proxy_parse_tcpka_cnt(char **args, int section, struct proxy *proxy,
586 struct proxy *defpx, const char *file, int line,
587 char **err)
588{
589 int retval;
590 char *res;
591 unsigned int tcpka_cnt;
592
593 retval = 0;
594
595 if (*args[1] == 0) {
596 memprintf(err, "'%s' expects an integer value", args[0]);
597 return -1;
598 }
599
600 tcpka_cnt = strtol(args[1], &res, 0);
601 if (*res) {
602 memprintf(err, "'%s' : unexpected character '%c' in integer value '%s'", args[0], *res, args[1]);
603 return -1;
604 }
605
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100606 if (strcmp(args[0], "clitcpka-cnt") == 0) {
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900607 if (!(proxy->cap & PR_CAP_FE)) {
608 memprintf(err, "%s will be ignored because %s '%s' has no frontend capability",
609 args[0], proxy_type_str(proxy), proxy->id);
610 retval = 1;
611 }
612 proxy->clitcpka_cnt = tcpka_cnt;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100613 } else if (strcmp(args[0], "srvtcpka-cnt") == 0) {
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900614 if (!(proxy->cap & PR_CAP_BE)) {
615 memprintf(err, "%s will be ignored because %s '%s' has no backend capability",
616 args[0], proxy_type_str(proxy), proxy->id);
617 retval = 1;
618 }
619 proxy->srvtcpka_cnt = tcpka_cnt;
620 } else {
621 /* unreachable */
622 memprintf(err, "'%s': unknown keyword", args[0]);
623 return -1;
624 }
625
626 return retval;
627}
Willy Tarreau52543212020-07-09 05:58:51 +0200628#endif
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900629
Willy Tarreau52543212020-07-09 05:58:51 +0200630#ifdef TCP_KEEPIDLE
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900631/* This function parses "{cli|srv}tcpka-idle" statements */
632static int proxy_parse_tcpka_idle(char **args, int section, struct proxy *proxy,
633 struct proxy *defpx, const char *file, int line,
634 char **err)
635{
636 int retval;
637 const char *res;
638 unsigned int tcpka_idle;
639
640 retval = 0;
641
642 if (*args[1] == 0) {
643 memprintf(err, "'%s' expects an integer value", args[0]);
644 return -1;
645 }
646 res = parse_time_err(args[1], &tcpka_idle, TIME_UNIT_S);
647 if (res == PARSE_TIME_OVER) {
648 memprintf(err, "timer overflow in argument '%s' to '%s' (maximum value is 2147483647 ms or ~24.8 days)",
649 args[1], args[0]);
650 return -1;
651 }
652 else if (res == PARSE_TIME_UNDER) {
653 memprintf(err, "timer underflow in argument '%s' to '%s' (minimum non-null value is 1 ms)",
654 args[1], args[0]);
655 return -1;
656 }
657 else if (res) {
658 memprintf(err, "unexpected character '%c' in argument to <%s>.\n", *res, args[0]);
659 return -1;
660 }
661
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100662 if (strcmp(args[0], "clitcpka-idle") == 0) {
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900663 if (!(proxy->cap & PR_CAP_FE)) {
664 memprintf(err, "%s will be ignored because %s '%s' has no frontend capability",
665 args[0], proxy_type_str(proxy), proxy->id);
666 retval = 1;
667 }
668 proxy->clitcpka_idle = tcpka_idle;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100669 } else if (strcmp(args[0], "srvtcpka-idle") == 0) {
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900670 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 proxy->srvtcpka_idle = tcpka_idle;
676 } else {
677 /* unreachable */
678 memprintf(err, "'%s': unknown keyword", args[0]);
679 return -1;
680 }
681
682 return retval;
683}
Willy Tarreau52543212020-07-09 05:58:51 +0200684#endif
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900685
Willy Tarreau52543212020-07-09 05:58:51 +0200686#ifdef TCP_KEEPINTVL
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900687/* This function parses "{cli|srv}tcpka-intvl" statements */
688static int proxy_parse_tcpka_intvl(char **args, int section, struct proxy *proxy,
689 struct proxy *defpx, const char *file, int line,
690 char **err)
691{
692 int retval;
693 const char *res;
694 unsigned int tcpka_intvl;
695
696 retval = 0;
697
698 if (*args[1] == 0) {
699 memprintf(err, "'%s' expects an integer value", args[0]);
700 return -1;
701 }
702 res = parse_time_err(args[1], &tcpka_intvl, TIME_UNIT_S);
703 if (res == PARSE_TIME_OVER) {
704 memprintf(err, "timer overflow in argument '%s' to '%s' (maximum value is 2147483647 ms or ~24.8 days)",
705 args[1], args[0]);
706 return -1;
707 }
708 else if (res == PARSE_TIME_UNDER) {
709 memprintf(err, "timer underflow in argument '%s' to '%s' (minimum non-null value is 1 ms)",
710 args[1], args[0]);
711 return -1;
712 }
713 else if (res) {
714 memprintf(err, "unexpected character '%c' in argument to <%s>.\n", *res, args[0]);
715 return -1;
716 }
717
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100718 if (strcmp(args[0], "clitcpka-intvl") == 0) {
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900719 if (!(proxy->cap & PR_CAP_FE)) {
720 memprintf(err, "%s will be ignored because %s '%s' has no frontend capability",
721 args[0], proxy_type_str(proxy), proxy->id);
722 retval = 1;
723 }
724 proxy->clitcpka_intvl = tcpka_intvl;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100725 } else if (strcmp(args[0], "srvtcpka-intvl") == 0) {
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900726 if (!(proxy->cap & PR_CAP_BE)) {
727 memprintf(err, "%s will be ignored because %s '%s' has no backend capability",
728 args[0], proxy_type_str(proxy), proxy->id);
729 retval = 1;
730 }
731 proxy->srvtcpka_intvl = tcpka_intvl;
732 } else {
733 /* unreachable */
734 memprintf(err, "'%s': unknown keyword", args[0]);
735 return -1;
736 }
737
738 return retval;
739}
Willy Tarreau52543212020-07-09 05:58:51 +0200740#endif
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900741
Willy Tarreau0a0f6a72021-02-12 13:52:11 +0100742/* This function inserts proxy <px> into the tree of known proxies (regular
743 * ones or defaults depending on px->cap & PR_CAP_DEF). The proxy's name is
744 * used as the storing key so it must already have been initialized.
Willy Tarreauf79d9502014-03-15 07:22:35 +0100745 */
746void proxy_store_name(struct proxy *px)
747{
Willy Tarreau0a0f6a72021-02-12 13:52:11 +0100748 struct eb_root *root = (px->cap & PR_CAP_DEF) ? &defproxy_by_name : &proxy_by_name;
749
Willy Tarreauf79d9502014-03-15 07:22:35 +0100750 px->conf.by_name.key = px->id;
Willy Tarreau0a0f6a72021-02-12 13:52:11 +0100751 ebis_insert(root, &px->conf.by_name);
Willy Tarreauf79d9502014-03-15 07:22:35 +0100752}
753
Willy Tarreau3c56a7d2015-05-26 15:25:32 +0200754/* Returns a pointer to the first proxy matching capabilities <cap> and id
755 * <id>. NULL is returned if no match is found. If <table> is non-zero, it
756 * only considers proxies having a table.
Willy Tarreaubc216c42011-08-02 11:25:54 +0200757 */
Willy Tarreau3c56a7d2015-05-26 15:25:32 +0200758struct proxy *proxy_find_by_id(int id, int cap, int table)
Willy Tarreau9e0bb102015-05-26 11:24:42 +0200759{
Willy Tarreau3c56a7d2015-05-26 15:25:32 +0200760 struct eb32_node *n;
Willy Tarreaubc216c42011-08-02 11:25:54 +0200761
Willy Tarreau3c56a7d2015-05-26 15:25:32 +0200762 for (n = eb32_lookup(&used_proxy_id, id); n; n = eb32_next(n)) {
763 struct proxy *px = container_of(n, struct proxy, conf.id);
Willy Tarreaucfd837f2014-03-15 07:43:51 +0100764
Willy Tarreau3c56a7d2015-05-26 15:25:32 +0200765 if (px->uuid != id)
766 break;
Alex Williams96532db2009-11-01 21:27:13 -0500767
Willy Tarreau3c56a7d2015-05-26 15:25:32 +0200768 if ((px->cap & cap) != cap)
769 continue;
Alex Williams96532db2009-11-01 21:27:13 -0500770
Frédéric Lécaille1b8e68e2019-03-14 07:07:41 +0100771 if (table && (!px->table || !px->table->size))
Willy Tarreau3c56a7d2015-05-26 15:25:32 +0200772 continue;
Willy Tarreaucfd837f2014-03-15 07:43:51 +0100773
Willy Tarreau3c56a7d2015-05-26 15:25:32 +0200774 return px;
775 }
776 return NULL;
777}
Willy Tarreaucfd837f2014-03-15 07:43:51 +0100778
Willy Tarreau3c56a7d2015-05-26 15:25:32 +0200779/* Returns a pointer to the first proxy matching either name <name>, or id
780 * <name> if <name> begins with a '#'. NULL is returned if no match is found.
Willy Tarreau0a0f6a72021-02-12 13:52:11 +0100781 * If <table> is non-zero, it only considers proxies having a table. The search
782 * is made into the regular proxies, unless <cap> has PR_CAP_DEF set in which
783 * case it's searched into the defproxy tree.
Willy Tarreau3c56a7d2015-05-26 15:25:32 +0200784 */
785struct proxy *proxy_find_by_name(const char *name, int cap, int table)
786{
787 struct proxy *curproxy;
Willy Tarreau9e0bb102015-05-26 11:24:42 +0200788
Willy Tarreau0a0f6a72021-02-12 13:52:11 +0100789 if (*name == '#' && !(cap & PR_CAP_DEF)) {
Willy Tarreau3c56a7d2015-05-26 15:25:32 +0200790 curproxy = proxy_find_by_id(atoi(name + 1), cap, table);
791 if (curproxy)
Willy Tarreauc739aa82015-05-26 11:35:41 +0200792 return curproxy;
Alex Williams96532db2009-11-01 21:27:13 -0500793 }
Willy Tarreaucfd837f2014-03-15 07:43:51 +0100794 else {
Willy Tarreau0a0f6a72021-02-12 13:52:11 +0100795 struct eb_root *root;
Willy Tarreaucfd837f2014-03-15 07:43:51 +0100796 struct ebpt_node *node;
797
Willy Tarreau0a0f6a72021-02-12 13:52:11 +0100798 root = (cap & PR_CAP_DEF) ? &defproxy_by_name : &proxy_by_name;
799 for (node = ebis_lookup(root, name); node; node = ebpt_next(node)) {
Willy Tarreaucfd837f2014-03-15 07:43:51 +0100800 curproxy = container_of(node, struct proxy, conf.by_name);
Alex Williams96532db2009-11-01 21:27:13 -0500801
Willy Tarreaucfd837f2014-03-15 07:43:51 +0100802 if (strcmp(curproxy->id, name) != 0)
803 break;
804
805 if ((curproxy->cap & cap) != cap)
806 continue;
807
Frédéric Lécaille1b8e68e2019-03-14 07:07:41 +0100808 if (table && (!curproxy->table || !curproxy->table->size))
Willy Tarreau9e0bb102015-05-26 11:24:42 +0200809 continue;
810
Willy Tarreauc739aa82015-05-26 11:35:41 +0200811 return curproxy;
Willy Tarreaucfd837f2014-03-15 07:43:51 +0100812 }
813 }
Willy Tarreauc739aa82015-05-26 11:35:41 +0200814 return NULL;
Alex Williams96532db2009-11-01 21:27:13 -0500815}
816
Willy Tarreaueb3e3482015-05-27 16:46:26 +0200817/* Finds the best match for a proxy with capabilities <cap>, name <name> and id
818 * <id>. At most one of <id> or <name> may be different provided that <cap> is
819 * valid. Either <id> or <name> may be left unspecified (0). The purpose is to
820 * find a proxy based on some information from a previous configuration, across
821 * reloads or during information exchange between peers.
822 *
823 * Names are looked up first if present, then IDs are compared if present. In
824 * case of an inexact match whatever is forced in the configuration has
825 * precedence in the following order :
826 * - 1) forced ID (proves a renaming / change of proxy type)
827 * - 2) proxy name+type (may indicate a move if ID differs)
828 * - 3) automatic ID+type (may indicate a renaming)
829 *
830 * Depending on what is found, we can end up in the following situations :
831 *
832 * name id cap | possible causes
833 * -------------+-----------------
834 * -- -- -- | nothing found
835 * -- -- ok | nothing found
836 * -- ok -- | proxy deleted, ID points to next one
837 * -- ok ok | proxy renamed, or deleted with ID pointing to next one
838 * ok -- -- | proxy deleted, but other half with same name still here (before)
839 * ok -- ok | proxy's ID changed (proxy moved in the config file)
840 * ok ok -- | proxy deleted, but other half with same name still here (after)
841 * ok ok ok | perfect match
842 *
843 * Upon return if <diff> is not NULL, it is zeroed then filled with up to 3 bits :
Baptiste Assmann8a027cc2015-07-03 11:03:33 +0200844 * - PR_FBM_MISMATCH_ID : proxy was found but ID differs
845 * (and ID was not zero)
846 * - PR_FBM_MISMATCH_NAME : proxy was found by ID but name differs
847 * (and name was not NULL)
848 * - PR_FBM_MISMATCH_PROXYTYPE : a proxy of different type was found with
849 * the same name and/or id
Willy Tarreaueb3e3482015-05-27 16:46:26 +0200850 *
851 * Only a valid proxy is returned. If capabilities do not match, NULL is
852 * returned. The caller can check <diff> to report detailed warnings / errors,
853 * and decide whether or not to use what was found.
854 */
855struct proxy *proxy_find_best_match(int cap, const char *name, int id, int *diff)
856{
857 struct proxy *byname;
858 struct proxy *byid;
859
860 if (!name && !id)
861 return NULL;
862
863 if (diff)
864 *diff = 0;
865
866 byname = byid = NULL;
867
868 if (name) {
869 byname = proxy_find_by_name(name, cap, 0);
870 if (byname && (!id || byname->uuid == id))
871 return byname;
872 }
873
Joseph Herlant59dd2952018-11-15 11:46:55 -0800874 /* remaining possibilities :
Willy Tarreaueb3e3482015-05-27 16:46:26 +0200875 * - name not set
876 * - name set but not found
877 * - name found, but ID doesn't match.
878 */
879 if (id) {
880 byid = proxy_find_by_id(id, cap, 0);
881 if (byid) {
882 if (byname) {
883 /* id+type found, name+type found, but not all 3.
884 * ID wins only if forced, otherwise name wins.
885 */
886 if (byid->options & PR_O_FORCED_ID) {
887 if (diff)
Baptiste Assmann8a027cc2015-07-03 11:03:33 +0200888 *diff |= PR_FBM_MISMATCH_NAME;
Willy Tarreaueb3e3482015-05-27 16:46:26 +0200889 return byid;
890 }
891 else {
892 if (diff)
Baptiste Assmann8a027cc2015-07-03 11:03:33 +0200893 *diff |= PR_FBM_MISMATCH_ID;
Willy Tarreaueb3e3482015-05-27 16:46:26 +0200894 return byname;
895 }
896 }
897
Joseph Herlant59dd2952018-11-15 11:46:55 -0800898 /* remaining possibilities :
Willy Tarreaueb3e3482015-05-27 16:46:26 +0200899 * - name not set
900 * - name set but not found
901 */
902 if (name && diff)
Baptiste Assmann8a027cc2015-07-03 11:03:33 +0200903 *diff |= PR_FBM_MISMATCH_NAME;
Willy Tarreaueb3e3482015-05-27 16:46:26 +0200904 return byid;
905 }
906
907 /* ID not found */
908 if (byname) {
909 if (diff)
Baptiste Assmann8a027cc2015-07-03 11:03:33 +0200910 *diff |= PR_FBM_MISMATCH_ID;
Willy Tarreaueb3e3482015-05-27 16:46:26 +0200911 return byname;
912 }
913 }
914
Joseph Herlant59dd2952018-11-15 11:46:55 -0800915 /* All remaining possibilities will lead to NULL. If we can report more
Willy Tarreaueb3e3482015-05-27 16:46:26 +0200916 * detailed information to the caller about changed types and/or name,
917 * we'll do it. For example, we could detect that "listen foo" was
918 * split into "frontend foo_ft" and "backend foo_bk" if IDs are forced.
919 * - name not set, ID not found
920 * - name not found, ID not set
921 * - name not found, ID not found
922 */
923 if (!diff)
924 return NULL;
925
926 if (name) {
927 byname = proxy_find_by_name(name, 0, 0);
928 if (byname && (!id || byname->uuid == id))
Baptiste Assmann8a027cc2015-07-03 11:03:33 +0200929 *diff |= PR_FBM_MISMATCH_PROXYTYPE;
Willy Tarreaueb3e3482015-05-27 16:46:26 +0200930 }
931
932 if (id) {
933 byid = proxy_find_by_id(id, 0, 0);
934 if (byid) {
935 if (!name)
Baptiste Assmann8a027cc2015-07-03 11:03:33 +0200936 *diff |= PR_FBM_MISMATCH_PROXYTYPE; /* only type changed */
Willy Tarreaueb3e3482015-05-27 16:46:26 +0200937 else if (byid->options & PR_O_FORCED_ID)
Baptiste Assmann8a027cc2015-07-03 11:03:33 +0200938 *diff |= PR_FBM_MISMATCH_NAME | PR_FBM_MISMATCH_PROXYTYPE; /* name and type changed */
Willy Tarreaueb3e3482015-05-27 16:46:26 +0200939 /* otherwise it's a different proxy that was returned */
940 }
941 }
942 return NULL;
943}
944
Willy Tarreaubaaee002006-06-26 02:48:02 +0200945/*
Krzysztof Piotr Oledzkic8b16fc2008-02-18 01:26:35 +0100946 * This function finds a server with matching name within selected proxy.
947 * It also checks if there are more matching servers with
948 * requested name as this often leads into unexpected situations.
949 */
950
951struct server *findserver(const struct proxy *px, const char *name) {
952
953 struct server *cursrv, *target = NULL;
954
955 if (!px)
956 return NULL;
957
958 for (cursrv = px->srv; cursrv; cursrv = cursrv->next) {
Tim Duesterhuse5ff1412021-01-02 22:31:53 +0100959 if (strcmp(cursrv->id, name) != 0)
Krzysztof Piotr Oledzkic8b16fc2008-02-18 01:26:35 +0100960 continue;
961
962 if (!target) {
963 target = cursrv;
964 continue;
965 }
966
Christopher Faulet767a84b2017-11-24 16:50:31 +0100967 ha_alert("Refusing to use duplicated server '%s' found in proxy: %s!\n",
968 name, px->id);
Krzysztof Piotr Oledzkic8b16fc2008-02-18 01:26:35 +0100969
970 return NULL;
971 }
972
973 return target;
974}
975
Willy Tarreauff01a212009-03-15 13:46:16 +0100976/* This function checks that the designated proxy has no http directives
977 * enabled. It will output a warning if there are, and will fix some of them.
978 * It returns the number of fatal errors encountered. This should be called
979 * at the end of the configuration parsing if the proxy is not in http mode.
980 * The <file> argument is used to construct the error message.
981 */
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200982int proxy_cfg_ensure_no_http(struct proxy *curproxy)
Willy Tarreauff01a212009-03-15 13:46:16 +0100983{
984 if (curproxy->cookie_name != NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100985 ha_warning("config : cookie will be ignored for %s '%s' (needs 'mode http').\n",
986 proxy_type_str(curproxy), curproxy->id);
Willy Tarreauff01a212009-03-15 13:46:16 +0100987 }
Willy Tarreauff01a212009-03-15 13:46:16 +0100988 if (curproxy->monitor_uri != NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100989 ha_warning("config : monitor-uri will be ignored for %s '%s' (needs 'mode http').\n",
990 proxy_type_str(curproxy), curproxy->id);
Willy Tarreauff01a212009-03-15 13:46:16 +0100991 }
Willy Tarreauf3e49f92009-10-03 12:21:20 +0200992 if (curproxy->lbprm.algo & BE_LB_NEED_HTTP) {
Willy Tarreauff01a212009-03-15 13:46:16 +0100993 curproxy->lbprm.algo &= ~BE_LB_ALGO;
994 curproxy->lbprm.algo |= BE_LB_ALGO_RR;
Christopher Faulet767a84b2017-11-24 16:50:31 +0100995 ha_warning("config : Layer 7 hash not possible for %s '%s' (needs 'mode http'). Falling back to round robin.\n",
996 proxy_type_str(curproxy), curproxy->id);
Willy Tarreauff01a212009-03-15 13:46:16 +0100997 }
Willy Tarreau17804162009-11-09 21:27:51 +0100998 if (curproxy->to_log & (LW_REQ | LW_RESP)) {
999 curproxy->to_log &= ~(LW_REQ | LW_RESP);
Christopher Faulet767a84b2017-11-24 16:50:31 +01001000 ha_warning("parsing [%s:%d] : HTTP log/header format not usable with %s '%s' (needs 'mode http').\n",
1001 curproxy->conf.lfs_file, curproxy->conf.lfs_line,
1002 proxy_type_str(curproxy), curproxy->id);
Willy Tarreau17804162009-11-09 21:27:51 +01001003 }
Willy Tarreau62a61232013-04-12 18:13:46 +02001004 if (curproxy->conf.logformat_string == default_http_log_format ||
1005 curproxy->conf.logformat_string == clf_http_log_format) {
1006 /* Note: we don't change the directive's file:line number */
1007 curproxy->conf.logformat_string = default_tcp_log_format;
Christopher Faulet767a84b2017-11-24 16:50:31 +01001008 ha_warning("parsing [%s:%d] : 'option httplog' not usable with %s '%s' (needs 'mode http'). Falling back to 'option tcplog'.\n",
1009 curproxy->conf.lfs_file, curproxy->conf.lfs_line,
1010 proxy_type_str(curproxy), curproxy->id);
Willy Tarreau196729e2012-05-31 19:30:26 +02001011 }
1012
Willy Tarreauff01a212009-03-15 13:46:16 +01001013 return 0;
1014}
1015
Willy Tarreau237250c2011-07-29 01:49:03 +02001016/* Perform the most basic initialization of a proxy :
1017 * memset(), list_init(*), reset_timeouts(*).
Willy Tarreaub249e842011-09-07 18:41:08 +02001018 * Any new proxy or peer should be initialized via this function.
Willy Tarreau237250c2011-07-29 01:49:03 +02001019 */
1020void init_new_proxy(struct proxy *p)
1021{
1022 memset(p, 0, sizeof(struct proxy));
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001023 p->obj_type = OBJ_TYPE_PROXY;
Patrick Hemmer0355dab2018-05-11 12:52:31 -04001024 p->pendconns = EB_ROOT;
Willy Tarreau237250c2011-07-29 01:49:03 +02001025 LIST_INIT(&p->acl);
1026 LIST_INIT(&p->http_req_rules);
Willy Tarreaue365c0b2013-06-11 16:06:12 +02001027 LIST_INIT(&p->http_res_rules);
Christopher Faulet6d0c3df2020-01-22 09:26:35 +01001028 LIST_INIT(&p->http_after_res_rules);
Willy Tarreau237250c2011-07-29 01:49:03 +02001029 LIST_INIT(&p->redirect_rules);
1030 LIST_INIT(&p->mon_fail_cond);
1031 LIST_INIT(&p->switching_rules);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001032 LIST_INIT(&p->server_rules);
Willy Tarreau237250c2011-07-29 01:49:03 +02001033 LIST_INIT(&p->persist_rules);
1034 LIST_INIT(&p->sticking_rules);
1035 LIST_INIT(&p->storersp_rules);
1036 LIST_INIT(&p->tcp_req.inspect_rules);
1037 LIST_INIT(&p->tcp_rep.inspect_rules);
1038 LIST_INIT(&p->tcp_req.l4_rules);
Willy Tarreau620408f2016-10-21 16:37:51 +02001039 LIST_INIT(&p->tcp_req.l5_rules);
Olivier Houchard859dc802019-08-08 15:47:21 +02001040 MT_LIST_INIT(&p->listener_queue);
William Lallemand0f99e342011-10-12 17:50:54 +02001041 LIST_INIT(&p->logsrvs);
William Lallemand723b73a2012-02-08 16:37:49 +01001042 LIST_INIT(&p->logformat);
Dragan Dosen0b85ece2015-09-25 19:17:44 +02001043 LIST_INIT(&p->logformat_sd);
William Lallemanda73203e2012-03-12 12:48:57 +01001044 LIST_INIT(&p->format_unique_id);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001045 LIST_INIT(&p->conf.bind);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001046 LIST_INIT(&p->conf.listeners);
Christopher Faulet76edc0f2020-01-13 15:52:01 +01001047 LIST_INIT(&p->conf.errors);
Willy Tarreaua4312fa2013-04-02 16:34:32 +02001048 LIST_INIT(&p->conf.args.list);
Christopher Faulet443ea1a2016-02-04 13:40:26 +01001049 LIST_INIT(&p->filter_configs);
Christopher Faulet7a1e2e12020-04-02 18:05:11 +02001050 LIST_INIT(&p->tcpcheck_rules.preset_vars);
Willy Tarreau237250c2011-07-29 01:49:03 +02001051
Willy Tarreau3b06eae2021-02-12 09:15:16 +01001052 p->defsrv.id = "default-server";
1053 p->conf.used_listener_id = EB_ROOT;
1054 p->conf.used_server_id = EB_ROOT;
1055 p->used_server_addr = EB_ROOT_UNIQUE;
1056
Willy Tarreau237250c2011-07-29 01:49:03 +02001057 /* Timeouts are defined as -1 */
1058 proxy_reset_timeouts(p);
1059 p->tcp_rep.inspect_delay = TICK_ETERNITY;
Willy Tarreau050536d2012-10-04 08:47:34 +02001060
1061 /* initial uuid is unassigned (-1) */
1062 p->uuid = -1;
Christopher Fauletff8abcd2017-06-02 15:33:24 +02001063
Olivier Houcharda254a372019-04-05 15:30:12 +02001064 /* Default to only allow L4 retries */
1065 p->retry_type = PR_RE_CONN_FAILED;
1066
Amaury Denoyelle7f8f6cb2020-11-10 14:24:31 +01001067 p->extra_counters_fe = NULL;
1068 p->extra_counters_be = NULL;
1069
Willy Tarreauac66d6b2020-10-20 17:24:27 +02001070 HA_RWLOCK_INIT(&p->lock);
Willy Tarreau237250c2011-07-29 01:49:03 +02001071}
1072
Willy Tarreau144289b2021-02-12 08:19:01 +01001073/* Preset default settings onto proxy <defproxy>. */
1074void proxy_preset_defaults(struct proxy *defproxy)
1075{
1076 defproxy->mode = PR_MODE_TCP;
1077 defproxy->disabled = 0;
1078 defproxy->maxconn = cfg_maxpconn;
1079 defproxy->conn_retries = CONN_RETRIES;
1080 defproxy->redispatch_after = 0;
1081 defproxy->options = PR_O_REUSE_SAFE;
1082 defproxy->max_out_conns = MAX_SRV_LIST;
1083
1084 defproxy->defsrv.check.inter = DEF_CHKINTR;
1085 defproxy->defsrv.check.fastinter = 0;
1086 defproxy->defsrv.check.downinter = 0;
1087 defproxy->defsrv.agent.inter = DEF_CHKINTR;
1088 defproxy->defsrv.agent.fastinter = 0;
1089 defproxy->defsrv.agent.downinter = 0;
1090 defproxy->defsrv.check.rise = DEF_RISETIME;
1091 defproxy->defsrv.check.fall = DEF_FALLTIME;
1092 defproxy->defsrv.agent.rise = DEF_AGENT_RISETIME;
1093 defproxy->defsrv.agent.fall = DEF_AGENT_FALLTIME;
1094 defproxy->defsrv.check.port = 0;
1095 defproxy->defsrv.agent.port = 0;
1096 defproxy->defsrv.maxqueue = 0;
1097 defproxy->defsrv.minconn = 0;
1098 defproxy->defsrv.maxconn = 0;
1099 defproxy->defsrv.max_reuse = -1;
1100 defproxy->defsrv.max_idle_conns = -1;
1101 defproxy->defsrv.pool_purge_delay = 5000;
1102 defproxy->defsrv.slowstart = 0;
1103 defproxy->defsrv.onerror = DEF_HANA_ONERR;
1104 defproxy->defsrv.consecutive_errors_limit = DEF_HANA_ERRLIMIT;
1105 defproxy->defsrv.uweight = defproxy->defsrv.iweight = 1;
1106
1107 defproxy->email_alert.level = LOG_ALERT;
1108 defproxy->load_server_state_from_file = PR_SRV_STATE_FILE_UNSPEC;
1109#if defined(USE_QUIC)
1110 quic_transport_params_init(&defproxy->defsrv.quic_params, 0);
1111#endif
1112}
1113
Willy Tarreaua3320a02021-02-12 10:38:49 +01001114/* Frees all dynamic settings allocated on a default proxy that's about to be
1115 * destroyed. This is a subset of the complete proxy deinit code, but these
1116 * should probably be merged ultimately. Note that most of the fields are not
1117 * even reset, so extreme care is required here, and calling
1118 * proxy_preset_defaults() afterwards would be safer.
1119 */
1120void proxy_free_defaults(struct proxy *defproxy)
1121{
Willy Tarreau61cfdf42021-02-20 10:46:51 +01001122 ha_free(&defproxy->id);
1123 ha_free(&defproxy->conf.file);
1124 ha_free(&defproxy->check_command);
1125 ha_free(&defproxy->check_path);
1126 ha_free(&defproxy->cookie_name);
1127 ha_free(&defproxy->rdp_cookie_name);
1128 ha_free(&defproxy->dyncookie_key);
1129 ha_free(&defproxy->cookie_domain);
1130 ha_free(&defproxy->cookie_attrs);
1131 ha_free(&defproxy->lbprm.arg_str);
1132 ha_free(&defproxy->capture_name);
1133 ha_free(&defproxy->monitor_uri);
1134 ha_free(&defproxy->defbe.name);
1135 ha_free(&defproxy->conn_src.iface_name);
1136 ha_free(&defproxy->fwdfor_hdr_name); defproxy->fwdfor_hdr_len = 0;
1137 ha_free(&defproxy->orgto_hdr_name); defproxy->orgto_hdr_len = 0;
1138 ha_free(&defproxy->server_id_hdr_name); defproxy->server_id_hdr_len = 0;
Willy Tarreaua3320a02021-02-12 10:38:49 +01001139
1140 if (defproxy->conf.logformat_string != default_http_log_format &&
1141 defproxy->conf.logformat_string != default_tcp_log_format &&
Willy Tarreau818ec782021-02-12 10:48:53 +01001142 defproxy->conf.logformat_string != clf_http_log_format) {
Willy Tarreau61cfdf42021-02-20 10:46:51 +01001143 ha_free(&defproxy->conf.logformat_string);
Willy Tarreau818ec782021-02-12 10:48:53 +01001144 }
Willy Tarreaua3320a02021-02-12 10:38:49 +01001145
Willy Tarreau61cfdf42021-02-20 10:46:51 +01001146 if (defproxy->conf.logformat_sd_string != default_rfc5424_sd_log_format)
1147 ha_free(&defproxy->conf.logformat_sd_string);
Willy Tarreaua3320a02021-02-12 10:38:49 +01001148
Willy Tarreau61cfdf42021-02-20 10:46:51 +01001149 ha_free(&defproxy->conf.uniqueid_format_string);
1150 ha_free(&defproxy->conf.lfs_file);
1151 ha_free(&defproxy->conf.lfsd_file);
1152 ha_free(&defproxy->conf.uif_file);
Willy Tarreaua3320a02021-02-12 10:38:49 +01001153 chunk_destroy(&defproxy->log_tag);
1154
1155 free_email_alert(defproxy);
1156 proxy_release_conf_errors(defproxy);
1157 deinit_proxy_tcpcheck(defproxy);
1158
1159 /* FIXME: we cannot free uri_auth because it might already be used by
1160 * another proxy (legacy code for stats URI ...). Refcount anyone ?
1161 */
1162}
1163
Willy Tarreau0a0f6a72021-02-12 13:52:11 +01001164/* delete a defproxy from the tree if still in it, frees its content and its
1165 * storage. Nothing is done if <px> is NULL or if it doesn't have PR_CAP_DEF
1166 * set, allowing to pass it the direct result of a lookup function.
1167 */
1168void proxy_destroy_defaults(struct proxy *px)
1169{
1170 if (!px)
1171 return;
1172 if (!(px->cap & PR_CAP_DEF))
1173 return;
1174 ebpt_delete(&px->conf.by_name);
1175 proxy_free_defaults(px);
1176 free(px);
1177}
1178
Willy Tarreaue90904d2021-02-12 14:08:31 +01001179void proxy_destroy_all_defaults()
1180{
1181 struct ebpt_node *n;
1182
1183 while ((n = ebpt_first(&defproxy_by_name))) {
1184 struct proxy *px = container_of(n, struct proxy, conf.by_name);
1185 BUG_ON(!(px->cap & PR_CAP_DEF));
1186 proxy_destroy_defaults(px);
1187 }
1188}
1189
Willy Tarreau76838932021-02-12 08:49:47 +01001190/* Allocates a new proxy <name> of type <cap> found at position <file:linenum>,
1191 * preset it from the defaults of <defproxy> and returns it. Un case of error,
1192 * an alert is printed and NULL is returned. If <errmsg> is not NULL, an error
Willy Tarreau3b06eae2021-02-12 09:15:16 +01001193 * message will be returned there in case of fatal error. If <defproxy> is NULL,
1194 * the documented default settings will be used instead.
Willy Tarreau76838932021-02-12 08:49:47 +01001195 */
1196struct proxy *alloc_new_proxy(const char *name, unsigned int cap, const char *file, int linenum, const struct proxy *defproxy, char **errmsg)
1197{
1198 struct logsrv *tmplogsrv;
1199 struct proxy *curproxy;
1200 char *tmpmsg = NULL;
1201
1202 if ((curproxy = calloc(1, sizeof(*curproxy))) == NULL) {
1203 memprintf(errmsg, "proxy '%s': out of memory", name);
1204 goto fail;
1205 }
1206
1207 init_new_proxy(curproxy);
1208 curproxy->conf.args.file = curproxy->conf.file = strdup(file);
1209 curproxy->conf.args.line = curproxy->conf.line = linenum;
1210 curproxy->last_change = now.tv_sec;
1211 curproxy->id = strdup(name);
1212 curproxy->cap = cap;
1213 proxy_store_name(curproxy);
1214
Willy Tarreau3b06eae2021-02-12 09:15:16 +01001215 if (!defproxy) {
1216 proxy_preset_defaults(curproxy);
1217 goto done;
1218 }
1219
1220 /* set default values from the specified default proxy */
Willy Tarreau76838932021-02-12 08:49:47 +01001221 memcpy(&curproxy->defsrv, &defproxy->defsrv, sizeof(curproxy->defsrv));
Willy Tarreau76838932021-02-12 08:49:47 +01001222
1223 curproxy->disabled = defproxy->disabled;
1224 curproxy->options = defproxy->options;
1225 curproxy->options2 = defproxy->options2;
1226 curproxy->no_options = defproxy->no_options;
1227 curproxy->no_options2 = defproxy->no_options2;
1228 curproxy->bind_proc = defproxy->bind_proc;
Christopher Faulet5d1def62021-02-26 09:19:15 +01001229 curproxy->except_xff_net = defproxy->except_xff_net;
1230 curproxy->except_xot_net = defproxy->except_xot_net;
Willy Tarreau76838932021-02-12 08:49:47 +01001231 curproxy->retry_type = defproxy->retry_type;
1232
1233 if (defproxy->fwdfor_hdr_len) {
1234 curproxy->fwdfor_hdr_len = defproxy->fwdfor_hdr_len;
1235 curproxy->fwdfor_hdr_name = strdup(defproxy->fwdfor_hdr_name);
1236 }
1237
1238 if (defproxy->orgto_hdr_len) {
1239 curproxy->orgto_hdr_len = defproxy->orgto_hdr_len;
1240 curproxy->orgto_hdr_name = strdup(defproxy->orgto_hdr_name);
1241 }
1242
1243 if (defproxy->server_id_hdr_len) {
1244 curproxy->server_id_hdr_len = defproxy->server_id_hdr_len;
1245 curproxy->server_id_hdr_name = strdup(defproxy->server_id_hdr_name);
1246 }
1247
1248 /* initialize error relocations */
1249 if (!proxy_dup_default_conf_errors(curproxy, defproxy, &tmpmsg)) {
1250 memprintf(errmsg, "proxy '%s' : %s", curproxy->id, tmpmsg);
1251 goto fail;
1252 }
1253
1254 if (curproxy->cap & PR_CAP_FE) {
1255 curproxy->maxconn = defproxy->maxconn;
1256 curproxy->backlog = defproxy->backlog;
1257 curproxy->fe_sps_lim = defproxy->fe_sps_lim;
1258
1259 curproxy->to_log = defproxy->to_log & ~LW_COOKIE & ~LW_REQHDR & ~ LW_RSPHDR;
1260 curproxy->max_out_conns = defproxy->max_out_conns;
1261
1262 curproxy->clitcpka_cnt = defproxy->clitcpka_cnt;
1263 curproxy->clitcpka_idle = defproxy->clitcpka_idle;
1264 curproxy->clitcpka_intvl = defproxy->clitcpka_intvl;
1265 }
1266
1267 if (curproxy->cap & PR_CAP_BE) {
1268 curproxy->lbprm.algo = defproxy->lbprm.algo;
1269 curproxy->lbprm.hash_balance_factor = defproxy->lbprm.hash_balance_factor;
1270 curproxy->fullconn = defproxy->fullconn;
1271 curproxy->conn_retries = defproxy->conn_retries;
1272 curproxy->redispatch_after = defproxy->redispatch_after;
1273 curproxy->max_ka_queue = defproxy->max_ka_queue;
1274
1275 curproxy->tcpcheck_rules.flags = (defproxy->tcpcheck_rules.flags & ~TCPCHK_RULES_UNUSED_RS);
1276 curproxy->tcpcheck_rules.list = defproxy->tcpcheck_rules.list;
1277 if (!LIST_ISEMPTY(&defproxy->tcpcheck_rules.preset_vars)) {
1278 if (!dup_tcpcheck_vars(&curproxy->tcpcheck_rules.preset_vars,
1279 &defproxy->tcpcheck_rules.preset_vars)) {
1280 memprintf(errmsg, "proxy '%s': failed to duplicate tcpcheck preset-vars", name);
1281 goto fail;
1282 }
1283 }
1284
1285 curproxy->ck_opts = defproxy->ck_opts;
1286 if (defproxy->cookie_name)
1287 curproxy->cookie_name = strdup(defproxy->cookie_name);
1288 curproxy->cookie_len = defproxy->cookie_len;
1289
1290 if (defproxy->dyncookie_key)
1291 curproxy->dyncookie_key = strdup(defproxy->dyncookie_key);
1292 if (defproxy->cookie_domain)
1293 curproxy->cookie_domain = strdup(defproxy->cookie_domain);
1294
1295 if (defproxy->cookie_maxidle)
1296 curproxy->cookie_maxidle = defproxy->cookie_maxidle;
1297
1298 if (defproxy->cookie_maxlife)
1299 curproxy->cookie_maxlife = defproxy->cookie_maxlife;
1300
1301 if (defproxy->rdp_cookie_name)
1302 curproxy->rdp_cookie_name = strdup(defproxy->rdp_cookie_name);
1303 curproxy->rdp_cookie_len = defproxy->rdp_cookie_len;
1304
1305 if (defproxy->cookie_attrs)
1306 curproxy->cookie_attrs = strdup(defproxy->cookie_attrs);
1307
1308 if (defproxy->lbprm.arg_str)
1309 curproxy->lbprm.arg_str = strdup(defproxy->lbprm.arg_str);
1310 curproxy->lbprm.arg_len = defproxy->lbprm.arg_len;
1311 curproxy->lbprm.arg_opt1 = defproxy->lbprm.arg_opt1;
1312 curproxy->lbprm.arg_opt2 = defproxy->lbprm.arg_opt2;
1313 curproxy->lbprm.arg_opt3 = defproxy->lbprm.arg_opt3;
1314
1315 if (defproxy->conn_src.iface_name)
1316 curproxy->conn_src.iface_name = strdup(defproxy->conn_src.iface_name);
1317 curproxy->conn_src.iface_len = defproxy->conn_src.iface_len;
1318 curproxy->conn_src.opts = defproxy->conn_src.opts;
1319#if defined(CONFIG_HAP_TRANSPARENT)
1320 curproxy->conn_src.tproxy_addr = defproxy->conn_src.tproxy_addr;
1321#endif
1322 curproxy->load_server_state_from_file = defproxy->load_server_state_from_file;
1323
1324 curproxy->srvtcpka_cnt = defproxy->srvtcpka_cnt;
1325 curproxy->srvtcpka_idle = defproxy->srvtcpka_idle;
1326 curproxy->srvtcpka_intvl = defproxy->srvtcpka_intvl;
1327 }
1328
1329 if (curproxy->cap & PR_CAP_FE) {
1330 if (defproxy->capture_name)
1331 curproxy->capture_name = strdup(defproxy->capture_name);
1332 curproxy->capture_namelen = defproxy->capture_namelen;
1333 curproxy->capture_len = defproxy->capture_len;
1334 }
1335
1336 if (curproxy->cap & PR_CAP_FE) {
1337 curproxy->timeout.client = defproxy->timeout.client;
1338 curproxy->timeout.clientfin = defproxy->timeout.clientfin;
1339 curproxy->timeout.tarpit = defproxy->timeout.tarpit;
1340 curproxy->timeout.httpreq = defproxy->timeout.httpreq;
1341 curproxy->timeout.httpka = defproxy->timeout.httpka;
1342 if (defproxy->monitor_uri)
1343 curproxy->monitor_uri = strdup(defproxy->monitor_uri);
1344 curproxy->monitor_uri_len = defproxy->monitor_uri_len;
1345 if (defproxy->defbe.name)
1346 curproxy->defbe.name = strdup(defproxy->defbe.name);
1347
1348 /* get either a pointer to the logformat string or a copy of it */
1349 curproxy->conf.logformat_string = defproxy->conf.logformat_string;
1350 if (curproxy->conf.logformat_string &&
1351 curproxy->conf.logformat_string != default_http_log_format &&
1352 curproxy->conf.logformat_string != default_tcp_log_format &&
1353 curproxy->conf.logformat_string != clf_http_log_format)
1354 curproxy->conf.logformat_string = strdup(curproxy->conf.logformat_string);
1355
1356 if (defproxy->conf.lfs_file) {
1357 curproxy->conf.lfs_file = strdup(defproxy->conf.lfs_file);
1358 curproxy->conf.lfs_line = defproxy->conf.lfs_line;
1359 }
1360
1361 /* get either a pointer to the logformat string for RFC5424 structured-data or a copy of it */
1362 curproxy->conf.logformat_sd_string = defproxy->conf.logformat_sd_string;
1363 if (curproxy->conf.logformat_sd_string &&
1364 curproxy->conf.logformat_sd_string != default_rfc5424_sd_log_format)
1365 curproxy->conf.logformat_sd_string = strdup(curproxy->conf.logformat_sd_string);
1366
1367 if (defproxy->conf.lfsd_file) {
1368 curproxy->conf.lfsd_file = strdup(defproxy->conf.lfsd_file);
1369 curproxy->conf.lfsd_line = defproxy->conf.lfsd_line;
1370 }
1371 }
1372
1373 if (curproxy->cap & PR_CAP_BE) {
1374 curproxy->timeout.connect = defproxy->timeout.connect;
1375 curproxy->timeout.server = defproxy->timeout.server;
1376 curproxy->timeout.serverfin = defproxy->timeout.serverfin;
1377 curproxy->timeout.check = defproxy->timeout.check;
1378 curproxy->timeout.queue = defproxy->timeout.queue;
1379 curproxy->timeout.tarpit = defproxy->timeout.tarpit;
1380 curproxy->timeout.httpreq = defproxy->timeout.httpreq;
1381 curproxy->timeout.httpka = defproxy->timeout.httpka;
1382 curproxy->timeout.tunnel = defproxy->timeout.tunnel;
1383 curproxy->conn_src.source_addr = defproxy->conn_src.source_addr;
1384 }
1385
1386 curproxy->mode = defproxy->mode;
1387 curproxy->uri_auth = defproxy->uri_auth; /* for stats */
1388
1389 /* copy default logsrvs to curproxy */
1390 list_for_each_entry(tmplogsrv, &defproxy->logsrvs, list) {
1391 struct logsrv *node = malloc(sizeof(*node));
1392
1393 if (!node) {
1394 memprintf(errmsg, "proxy '%s': out of memory", name);
1395 goto fail;
1396 }
1397 memcpy(node, tmplogsrv, sizeof(struct logsrv));
1398 node->ref = tmplogsrv->ref;
1399 LIST_INIT(&node->list);
1400 LIST_ADDQ(&curproxy->logsrvs, &node->list);
1401 }
1402
1403 curproxy->conf.uniqueid_format_string = defproxy->conf.uniqueid_format_string;
1404 if (curproxy->conf.uniqueid_format_string)
1405 curproxy->conf.uniqueid_format_string = strdup(curproxy->conf.uniqueid_format_string);
1406
1407 chunk_dup(&curproxy->log_tag, &defproxy->log_tag);
1408
1409 if (defproxy->conf.uif_file) {
1410 curproxy->conf.uif_file = strdup(defproxy->conf.uif_file);
1411 curproxy->conf.uif_line = defproxy->conf.uif_line;
1412 }
1413
1414 /* copy default header unique id */
1415 if (isttest(defproxy->header_unique_id)) {
1416 const struct ist copy = istdup(defproxy->header_unique_id);
1417
1418 if (!isttest(copy)) {
1419 memprintf(errmsg, "proxy '%s': out of memory for unique-id-header", name);
1420 goto fail;
1421 }
1422 curproxy->header_unique_id = copy;
1423 }
1424
1425 /* default compression options */
1426 if (defproxy->comp != NULL) {
1427 curproxy->comp = calloc(1, sizeof(*curproxy->comp));
1428 curproxy->comp->algos = defproxy->comp->algos;
1429 curproxy->comp->types = defproxy->comp->types;
1430 }
1431
1432 curproxy->grace = defproxy->grace;
Willy Tarreau76838932021-02-12 08:49:47 +01001433
1434 if (defproxy->check_path)
1435 curproxy->check_path = strdup(defproxy->check_path);
1436 if (defproxy->check_command)
1437 curproxy->check_command = strdup(defproxy->check_command);
1438
1439 if (defproxy->email_alert.mailers.name)
1440 curproxy->email_alert.mailers.name = strdup(defproxy->email_alert.mailers.name);
1441 if (defproxy->email_alert.from)
1442 curproxy->email_alert.from = strdup(defproxy->email_alert.from);
1443 if (defproxy->email_alert.to)
1444 curproxy->email_alert.to = strdup(defproxy->email_alert.to);
1445 if (defproxy->email_alert.myhostname)
1446 curproxy->email_alert.myhostname = strdup(defproxy->email_alert.myhostname);
1447 curproxy->email_alert.level = defproxy->email_alert.level;
1448 curproxy->email_alert.set = defproxy->email_alert.set;
Willy Tarreau3b06eae2021-02-12 09:15:16 +01001449
1450 done:
Willy Tarreau76838932021-02-12 08:49:47 +01001451 return curproxy;
1452 fail:
1453 /* Note: in case of fatal error here, we WILL make valgrind unhappy,
1454 * but its not worth trying to unroll everything here just before
1455 * quitting.
1456 */
1457 free(tmpmsg);
1458 free(curproxy);
1459 return NULL;
1460}
1461
Willy Tarreauacde1522020-10-07 16:31:39 +02001462/* to be called under the proxy lock after stopping some listeners. This will
1463 * automatically update the p->disabled flag after stopping the last one, and
1464 * will emit a log indicating the proxy's condition. The function is idempotent
1465 * so that it will not emit multiple logs; a proxy will be disabled only once.
1466 */
1467void proxy_cond_disable(struct proxy *p)
1468{
1469 if (p->disabled)
1470 return;
1471
1472 if (p->li_ready + p->li_paused > 0)
1473 return;
1474
1475 p->disabled = 1;
1476
1477 if (!(proc_mask(p->bind_proc) & pid_bit))
1478 goto silent;
1479
1480 /* Note: syslog proxies use their own loggers so while it's somewhat OK
1481 * to report them being stopped as a warning, we must not spam their log
1482 * servers which are in fact production servers. For other types (CLI,
1483 * peers, etc) we must not report them at all as they're not really on
1484 * the data plane but on the control plane.
1485 */
1486 if (p->mode == PR_MODE_TCP || p->mode == PR_MODE_HTTP || p->mode == PR_MODE_SYSLOG)
1487 ha_warning("Proxy %s stopped (cumulated conns: FE: %lld, BE: %lld).\n",
1488 p->id, p->fe_counters.cum_conn, p->be_counters.cum_conn);
1489
1490 if (p->mode == PR_MODE_TCP || p->mode == PR_MODE_HTTP)
1491 send_log(p, LOG_WARNING, "Proxy %s stopped (cumulated conns: FE: %lld, BE: %lld).\n",
1492 p->id, p->fe_counters.cum_conn, p->be_counters.cum_conn);
1493
1494 silent:
1495 if (p->table && p->table->size && p->table->sync_task)
1496 task_wakeup(p->table->sync_task, TASK_WOKEN_MSG);
1497
1498 if (p->task)
1499 task_wakeup(p->task, TASK_WOKEN_MSG);
1500}
1501
Krzysztof Piotr Oledzkic8b16fc2008-02-18 01:26:35 +01001502/*
Willy Tarreau918ff602011-07-25 16:33:49 +02001503 * This is the proxy management task. It enables proxies when there are enough
Willy Tarreau87b09662015-04-03 00:22:06 +02001504 * free streams, or stops them when the table is full. It is designed to be
Willy Tarreau918ff602011-07-25 16:33:49 +02001505 * called as a task which is woken up upon stopping or when rate limiting must
1506 * be enforced.
Willy Tarreaubaaee002006-06-26 02:48:02 +02001507 */
Olivier Houchard9f6af332018-05-25 14:04:04 +02001508struct task *manage_proxy(struct task *t, void *context, unsigned short state)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001509{
Olivier Houchard9f6af332018-05-25 14:04:04 +02001510 struct proxy *p = context;
Willy Tarreau918ff602011-07-25 16:33:49 +02001511 int next = TICK_ETERNITY;
Willy Tarreau79584222009-03-06 09:18:27 +01001512 unsigned int wait;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001513
Willy Tarreau918ff602011-07-25 16:33:49 +02001514 /* We should periodically try to enable listeners waiting for a
1515 * global resource here.
1516 */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001517
Willy Tarreau918ff602011-07-25 16:33:49 +02001518 /* first, let's check if we need to stop the proxy */
Willy Tarreauc3914d42020-09-24 08:39:22 +02001519 if (unlikely(stopping && !p->disabled)) {
Willy Tarreau918ff602011-07-25 16:33:49 +02001520 int t;
1521 t = tick_remain(now_ms, p->stop_time);
1522 if (t == 0) {
Willy Tarreau918ff602011-07-25 16:33:49 +02001523 stop_proxy(p);
1524 /* try to free more memory */
Willy Tarreaubafbe012017-11-24 17:34:44 +01001525 pool_gc(NULL);
Willy Tarreau918ff602011-07-25 16:33:49 +02001526 }
1527 else {
1528 next = tick_first(next, p->stop_time);
1529 }
1530 }
Willy Tarreauf3f8c702011-07-25 07:37:28 +02001531
Willy Tarreau3a925c12013-09-04 17:54:01 +02001532 /* If the proxy holds a stick table, we need to purge all unused
1533 * entries. These are all the ones in the table with ref_cnt == 0
1534 * and all the ones in the pool used to allocate new entries. Any
Willy Tarreau87b09662015-04-03 00:22:06 +02001535 * entry attached to an existing stream waiting for a store will
Willy Tarreau3a925c12013-09-04 17:54:01 +02001536 * be in neither list. Any entry being dumped will have ref_cnt > 0.
1537 * However we protect tables that are being synced to peers.
1538 */
Willy Tarreauc3914d42020-09-24 08:39:22 +02001539 if (unlikely(stopping && p->disabled && p->table && p->table->current)) {
Frédéric Lécaille1b8e68e2019-03-14 07:07:41 +01001540 if (!p->table->syncing) {
1541 stktable_trash_oldest(p->table, p->table->current);
Willy Tarreaubafbe012017-11-24 17:34:44 +01001542 pool_gc(NULL);
Willy Tarreau3a925c12013-09-04 17:54:01 +02001543 }
Frédéric Lécaille1b8e68e2019-03-14 07:07:41 +01001544 if (p->table->current) {
Willy Tarreau3a925c12013-09-04 17:54:01 +02001545 /* some entries still remain, let's recheck in one second */
1546 next = tick_first(next, tick_add(now_ms, 1000));
1547 }
1548 }
1549
Willy Tarreau918ff602011-07-25 16:33:49 +02001550 /* the rest below is just for frontends */
1551 if (!(p->cap & PR_CAP_FE))
1552 goto out;
Willy Tarreauf3f8c702011-07-25 07:37:28 +02001553
Willy Tarreau918ff602011-07-25 16:33:49 +02001554 /* check the various reasons we may find to block the frontend */
Willy Tarreau6b3bf732020-09-24 07:35:46 +02001555 if (unlikely(p->feconn >= p->maxconn))
Willy Tarreau918ff602011-07-25 16:33:49 +02001556 goto out;
Willy Tarreau3a7d2072009-03-05 23:48:25 +01001557
Willy Tarreau918ff602011-07-25 16:33:49 +02001558 if (p->fe_sps_lim &&
1559 (wait = next_event_delay(&p->fe_sess_per_sec, p->fe_sps_lim, 0))) {
1560 /* we're blocking because a limit was reached on the number of
1561 * requests/s on the frontend. We want to re-check ASAP, which
1562 * means in 1 ms before estimated expiration date, because the
1563 * timer will have settled down.
1564 */
1565 next = tick_first(next, tick_add(now_ms, wait));
1566 goto out;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001567 }
Willy Tarreau918ff602011-07-25 16:33:49 +02001568
1569 /* The proxy is not limited so we can re-enable any waiting listener */
Willy Tarreau241797a2019-12-10 14:10:52 +01001570 dequeue_proxy_listeners(p);
Willy Tarreau918ff602011-07-25 16:33:49 +02001571 out:
1572 t->expire = next;
1573 task_queue(t);
1574 return t;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001575}
1576
1577
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001578static int proxy_parse_hard_stop_after(char **args, int section_type, struct proxy *curpx,
1579 struct proxy *defpx, const char *file, int line,
1580 char **err)
1581{
1582 const char *res;
1583
1584 if (!*args[1]) {
1585 memprintf(err, "'%s' expects <time> as argument.\n", args[0]);
1586 return -1;
1587 }
1588 res = parse_time_err(args[1], &global.hard_stop_after, TIME_UNIT_MS);
Willy Tarreau9faebe32019-06-07 19:00:37 +02001589 if (res == PARSE_TIME_OVER) {
1590 memprintf(err, "timer overflow in argument '%s' to '%s' (maximum value is 2147483647 ms or ~24.8 days)",
1591 args[1], args[0]);
1592 return -1;
1593 }
1594 else if (res == PARSE_TIME_UNDER) {
1595 memprintf(err, "timer underflow in argument '%s' to '%s' (minimum non-null value is 1 ms)",
1596 args[1], args[0]);
1597 return -1;
1598 }
1599 else if (res) {
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001600 memprintf(err, "unexpected character '%c' in argument to <%s>.\n", *res, args[0]);
1601 return -1;
1602 }
1603 return 0;
1604}
1605
Olivier Houchard9f6af332018-05-25 14:04:04 +02001606struct task *hard_stop(struct task *t, void *context, unsigned short state)
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001607{
1608 struct proxy *p;
1609 struct stream *s;
Willy Tarreau0d038252021-02-24 11:13:59 +01001610 int thr;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001611
1612 if (killed) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001613 ha_warning("Some tasks resisted to hard-stop, exiting now.\n");
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001614 send_log(NULL, LOG_WARNING, "Some tasks resisted to hard-stop, exiting now.\n");
Willy Tarreau7067b3a2019-06-02 11:11:29 +02001615 killed = 2;
Willy Tarreau0d038252021-02-24 11:13:59 +01001616 for (thr = 0; thr < global.nbthread; thr++)
1617 if (((all_threads_mask & ~tid_bit) >> thr) & 1)
1618 wake_thread(thr);
Willy Tarreau7067b3a2019-06-02 11:11:29 +02001619 t->expire = TICK_ETERNITY;
1620 return t;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001621 }
1622
Christopher Faulet767a84b2017-11-24 16:50:31 +01001623 ha_warning("soft-stop running for too long, performing a hard-stop.\n");
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001624 send_log(NULL, LOG_WARNING, "soft-stop running for too long, performing a hard-stop.\n");
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001625 p = proxies_list;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001626 while (p) {
1627 if ((p->cap & PR_CAP_FE) && (p->feconn > 0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001628 ha_warning("Proxy %s hard-stopped (%d remaining conns will be closed).\n",
1629 p->id, p->feconn);
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001630 send_log(p, LOG_WARNING, "Proxy %s hard-stopped (%d remaining conns will be closed).\n",
1631 p->id, p->feconn);
1632 }
1633 p = p->next;
1634 }
Willy Tarreau92b887e2021-02-24 11:08:56 +01001635
1636 thread_isolate();
Willy Tarreaua698eb62021-02-24 10:37:01 +01001637
1638 for (thr = 0; thr < global.nbthread; thr++) {
1639 list_for_each_entry(s, &ha_thread_info[thr].streams, list) {
1640 stream_shutdown(s, SF_ERR_KILLED);
1641 }
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001642 }
Willy Tarreaua698eb62021-02-24 10:37:01 +01001643
Willy Tarreau92b887e2021-02-24 11:08:56 +01001644 thread_release();
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001645
1646 killed = 1;
1647 t->expire = tick_add(now_ms, MS_TO_TICKS(1000));
1648 return t;
1649}
1650
Willy Tarreaubaaee002006-06-26 02:48:02 +02001651/*
1652 * this function disables health-check servers so that the process will quickly be ignored
1653 * by load balancers. Note that if a proxy was already in the PAUSED state, then its grace
1654 * time will not be used since it would already not listen anymore to the socket.
1655 */
1656void soft_stop(void)
1657{
1658 struct proxy *p;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001659 struct task *task;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001660
1661 stopping = 1;
William Dauchy3894d972019-12-28 15:36:02 +01001662 /* disable busy polling to avoid cpu eating for the new process */
1663 global.tune.options &= ~GTUNE_BUSY_POLLING;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001664 if (tick_isset(global.hard_stop_after)) {
Emeric Brunc60def82017-09-27 14:59:38 +02001665 task = task_new(MAX_THREADS_MASK);
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001666 if (task) {
1667 task->process = hard_stop;
1668 task_schedule(task, tick_add(now_ms, global.hard_stop_after));
1669 }
1670 else {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001671 ha_alert("out of memory trying to allocate the hard-stop task.\n");
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001672 }
1673 }
Willy Tarreau626f3a72020-10-07 16:52:43 +02001674
1675 /* stop all stoppable listeners, resulting in disabling all proxies
1676 * that don't use a grace period.
1677 */
1678 protocol_stop_now();
1679
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001680 p = proxies_list;
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001681 tv_update_date(0,1); /* else, the old time before select will be used */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001682 while (p) {
Willy Tarreauc3914d42020-09-24 08:39:22 +02001683 if (!p->disabled) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001684 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 +02001685 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 +02001686 p->stop_time = tick_add(now_ms, p->grace);
Emeric Brun5a8c0a92010-09-23 18:44:36 +02001687
Willy Tarreau20b7afb2015-09-28 16:35:04 +02001688 /* Note: do not wake up stopped proxies' task nor their tables'
1689 * tasks as these ones might point to already released entries.
1690 */
Frédéric Lécaille1b8e68e2019-03-14 07:07:41 +01001691 if (p->table && p->table->size && p->table->sync_task)
1692 task_wakeup(p->table->sync_task, TASK_WOKEN_MSG);
Willy Tarreau20b7afb2015-09-28 16:35:04 +02001693
1694 if (p->task)
1695 task_wakeup(p->task, TASK_WOKEN_MSG);
1696 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001697 p = p->next;
1698 }
Willy Tarreaubbe11b12011-07-25 11:16:24 +02001699
Willy Tarreaud0807c32010-08-27 18:26:11 +02001700 /* signal zero is used to broadcast the "stopping" event */
1701 signal_handler(0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001702}
1703
1704
Willy Tarreaube58c382011-07-24 18:28:10 +02001705/* Temporarily disables listening on all of the proxy's listeners. Upon
Willy Tarreaua17c91b2020-09-24 07:44:34 +02001706 * success, the proxy enters the PR_PAUSED state. The function returns 0
Willy Tarreauce8fe252011-09-07 19:14:57 +02001707 * if it fails, or non-zero on success.
Willy Tarreaubaaee002006-06-26 02:48:02 +02001708 */
Willy Tarreauce8fe252011-09-07 19:14:57 +02001709int pause_proxy(struct proxy *p)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001710{
1711 struct listener *l;
Willy Tarreauce8fe252011-09-07 19:14:57 +02001712
Willy Tarreauc3914d42020-09-24 08:39:22 +02001713 if (!(p->cap & PR_CAP_FE) || p->disabled || !p->li_ready)
Willy Tarreauce8fe252011-09-07 19:14:57 +02001714 return 1;
1715
Willy Tarreaua17c91b2020-09-24 07:44:34 +02001716 list_for_each_entry(l, &p->conf.listeners, by_fe)
1717 pause_listener(l);
Willy Tarreauce8fe252011-09-07 19:14:57 +02001718
Willy Tarreaua17c91b2020-09-24 07:44:34 +02001719 if (p->li_ready) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001720 ha_warning("%s %s failed to enter pause mode.\n", proxy_cap_str(p->cap), p->id);
Willy Tarreauce8fe252011-09-07 19:14:57 +02001721 send_log(p, LOG_WARNING, "%s %s failed to enter pause mode.\n", proxy_cap_str(p->cap), p->id);
1722 return 0;
1723 }
Willy Tarreauce8fe252011-09-07 19:14:57 +02001724 return 1;
Willy Tarreauda250db2008-10-12 12:07:48 +02001725}
1726
Willy Tarreauda250db2008-10-12 12:07:48 +02001727/*
1728 * This function completely stops a proxy and releases its listeners. It has
1729 * to be called when going down in order to release the ports so that another
1730 * process may bind to them. It must also be called on disabled proxies at the
William Lallemandc59f9882018-11-16 16:57:21 +01001731 * end of start-up. If all listeners are closed, the proxy is set to the
Willy Tarreau3de3cd42019-07-24 17:42:44 +02001732 * PR_STSTOPPED state. The function takes the proxy's lock so it's safe to
1733 * call from multiple places.
Willy Tarreauda250db2008-10-12 12:07:48 +02001734 */
1735void stop_proxy(struct proxy *p)
1736{
1737 struct listener *l;
1738
Willy Tarreauac66d6b2020-10-20 17:24:27 +02001739 HA_RWLOCK_WRLOCK(PROXY_LOCK, &p->lock);
Willy Tarreau3de3cd42019-07-24 17:42:44 +02001740
Willy Tarreau322b9b92020-10-07 16:20:34 +02001741 list_for_each_entry(l, &p->conf.listeners, by_fe)
1742 stop_listener(l, 1, 0, 0);
Willy Tarreau3de3cd42019-07-24 17:42:44 +02001743
Willy Tarreauba296872020-10-16 15:10:11 +02001744 if (!p->disabled && !p->li_ready) {
1745 /* might be just a backend */
1746 p->disabled = 1;
1747 }
1748
Willy Tarreauac66d6b2020-10-20 17:24:27 +02001749 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &p->lock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001750}
1751
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02001752/* This function resumes listening on the specified proxy. It scans all of its
1753 * listeners and tries to enable them all. If any of them fails, the proxy is
1754 * put back to the paused state. It returns 1 upon success, or zero if an error
1755 * is encountered.
1756 */
1757int resume_proxy(struct proxy *p)
1758{
1759 struct listener *l;
1760 int fail;
1761
Willy Tarreauc3914d42020-09-24 08:39:22 +02001762 if (p->disabled || !p->li_paused)
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02001763 return 1;
1764
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02001765 fail = 0;
Willy Tarreau4348fad2012-09-20 16:48:07 +02001766 list_for_each_entry(l, &p->conf.listeners, by_fe) {
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02001767 if (!resume_listener(l)) {
1768 int port;
1769
Willy Tarreau37159062020-08-27 07:48:42 +02001770 port = get_host_port(&l->rx.addr);
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02001771 if (port) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001772 ha_warning("Port %d busy while trying to enable %s %s.\n",
1773 port, proxy_cap_str(p->cap), p->id);
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02001774 send_log(p, LOG_WARNING, "Port %d busy while trying to enable %s %s.\n",
1775 port, proxy_cap_str(p->cap), p->id);
1776 }
1777 else {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001778 ha_warning("Bind on socket %d busy while trying to enable %s %s.\n",
1779 l->luid, proxy_cap_str(p->cap), p->id);
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02001780 send_log(p, LOG_WARNING, "Bind on socket %d busy while trying to enable %s %s.\n",
1781 l->luid, proxy_cap_str(p->cap), p->id);
1782 }
1783
1784 /* Another port might have been enabled. Let's stop everything. */
1785 fail = 1;
1786 break;
1787 }
1788 }
1789
Willy Tarreauc03ebbf2011-09-07 21:33:14 +02001790 if (fail) {
1791 pause_proxy(p);
1792 return 0;
1793 }
1794 return 1;
1795}
1796
Willy Tarreau87b09662015-04-03 00:22:06 +02001797/* Set current stream's backend to <be>. Nothing is done if the
1798 * stream already had a backend assigned, which is indicated by
Willy Tarreaue7dff022015-04-03 01:14:29 +02001799 * s->flags & SF_BE_ASSIGNED.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001800 * All flags, stats and counters which need be updated are updated.
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001801 * Returns 1 if done, 0 in case of internal error, eg: lack of resource.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001802 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001803int stream_set_backend(struct stream *s, struct proxy *be)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001804{
Willy Tarreaue7dff022015-04-03 01:14:29 +02001805 if (s->flags & SF_BE_ASSIGNED)
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001806 return 1;
Christopher Faulet41179042016-06-21 11:54:52 +02001807
1808 if (flt_set_stream_backend(s, be) < 0)
1809 return 0;
1810
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001811 s->be = be;
Christopher Fauletff8abcd2017-06-02 15:33:24 +02001812 HA_ATOMIC_UPDATE_MAX(&be->be_counters.conn_max,
1813 HA_ATOMIC_ADD(&be->beconn, 1));
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001814 proxy_inc_be_ctr(be);
1815
Willy Tarreau87b09662015-04-03 00:22:06 +02001816 /* assign new parameters to the stream from the new backend */
Willy Tarreauf27b5ea2009-10-03 22:01:18 +02001817 s->si[1].flags &= ~SI_FL_INDEP_STR;
1818 if (be->options2 & PR_O2_INDEPSTR)
1819 s->si[1].flags |= SI_FL_INDEP_STR;
1820
Hongbo Longe39683c2017-03-10 18:41:51 +01001821 if (tick_isset(be->timeout.serverfin))
1822 s->si[1].hcto = be->timeout.serverfin;
1823
Willy Tarreau9fbe18e2015-05-01 22:42:08 +02001824 /* We want to enable the backend-specific analysers except those which
1825 * were already run as part of the frontend/listener. Note that it would
1826 * be more reliable to store the list of analysers that have been run,
1827 * but what we do here is OK for now.
1828 */
Christopher Faulet70e2f272017-01-09 16:33:19 +01001829 s->req.analysers |= be->be_req_ana & ~(strm_li(s) ? strm_li(s)->analysers : 0);
Willy Tarreau9fbe18e2015-05-01 22:42:08 +02001830
Willy Tarreau51aecc72009-07-12 09:47:04 +02001831 /* If the target backend requires HTTP processing, we have to allocate
Christopher Faulet711ed6a2019-07-16 14:16:10 +02001832 * the HTTP transaction if we did not have one.
Willy Tarreau51aecc72009-07-12 09:47:04 +02001833 */
Willy Tarreaueee5b512015-04-03 23:46:31 +02001834 if (unlikely(!s->txn && be->http_needed)) {
1835 if (unlikely(!http_alloc_txn(s)))
Willy Tarreau51aecc72009-07-12 09:47:04 +02001836 return 0; /* not enough memory */
Willy Tarreau39e4f622010-05-31 17:01:36 +02001837
1838 /* and now initialize the HTTP transaction state */
1839 http_init_txn(s);
Willy Tarreau51aecc72009-07-12 09:47:04 +02001840 }
1841
Christopher Faulet309c6412015-12-02 09:57:32 +01001842 /* Be sure to filter request headers if the backend is an HTTP proxy and
1843 * if there are filters attached to the stream. */
1844 if (s->be->mode == PR_MODE_HTTP && HAS_FILTERS(s))
Christopher Faulet0184ea72017-01-05 14:06:34 +01001845 s->req.analysers |= AN_REQ_FLT_HTTP_HDRS;
Christopher Faulet309c6412015-12-02 09:57:32 +01001846
Willy Tarreaueee5b512015-04-03 23:46:31 +02001847 if (s->txn) {
Christopher Fauletbbe68542019-04-08 10:53:51 +02001848 /* If we chain a TCP frontend to an HTX backend, we must upgrade
1849 * the client mux */
Christopher Faulet60d29b32019-07-15 15:00:25 +02001850 if (!IS_HTX_STRM(s) && be->mode == PR_MODE_HTTP) {
Christopher Fauletbbe68542019-04-08 10:53:51 +02001851 struct connection *conn = objt_conn(strm_sess(s)->origin);
1852 struct conn_stream *cs = objt_cs(s->si[0].end);
1853
1854 if (conn && cs) {
1855 si_rx_endp_more(&s->si[0]);
Olivier Houchard2ab3dad2019-07-03 13:08:18 +02001856 /* Make sure we're unsubscribed, the the new
1857 * mux will probably want to subscribe to
1858 * the underlying XPRT
1859 */
1860 if (s->si[0].wait_event.events)
1861 conn->mux->unsubscribe(cs, s->si[0].wait_event.events,
1862 &s->si[0].wait_event);
Christopher Fauletc985f6c2019-07-15 11:42:52 +02001863 if (conn_upgrade_mux_fe(conn, cs, &s->req.buf, ist(""), PROTO_MODE_HTTP) == -1)
Christopher Fauletbbe68542019-04-08 10:53:51 +02001864 return 0;
Tim Duesterhuse5ff1412021-01-02 22:31:53 +01001865 if (strcmp(conn->mux->name, "H2") == 0) {
Olivier Houchard4c18f942019-07-31 18:05:26 +02001866 /* For HTTP/2, destroy the conn_stream,
1867 * disable logging, and pretend that we
1868 * failed, to that the stream is
1869 * silently destroyed. The new mux
1870 * will create new streams.
1871 */
Olivier Houchard59dd06d2019-08-09 18:01:15 +02001872 cs_free(cs);
Olivier Houchard4c18f942019-07-31 18:05:26 +02001873 si_detach_endpoint(&s->si[0]);
1874 s->logs.logwait = 0;
1875 s->logs.level = 0;
1876 s->flags |= SF_IGNORE;
1877 return 0;
1878 }
Christopher Fauletcdd1e2a2021-01-21 17:31:04 +01001879 s->req.flags &= ~(CF_READ_PARTIAL|CF_AUTO_CONNECT);
1880 s->req.total = 0;
1881 s->flags |= SF_IGNORE;
Christopher Fauletbbe68542019-04-08 10:53:51 +02001882 }
1883 }
Christopher Fauleteec7f8a2019-12-20 15:59:20 +01001884 else if (IS_HTX_STRM(s) && be->mode != PR_MODE_HTTP) {
1885 /* If a TCP backend is assgiend to an HTX stream, return
1886 * an error. It may happens for a new stream on a
Ilya Shipitsin47d17182020-06-21 21:42:57 +05001887 * previously upgraded connections. */
Christopher Fauleteec7f8a2019-12-20 15:59:20 +01001888 if (!(s->flags & SF_ERR_MASK))
1889 s->flags |= SF_ERR_INTERNAL;
1890 return 0;
1891 }
Christopher Fauletbbe68542019-04-08 10:53:51 +02001892
Willy Tarreau9fbe18e2015-05-01 22:42:08 +02001893 /* we may request to parse a request body */
Christopher Faulet711ed6a2019-07-16 14:16:10 +02001894 if (be->options & PR_O_WREQ_BODY)
Willy Tarreau9fbe18e2015-05-01 22:42:08 +02001895 s->req.analysers |= AN_REQ_HTTP_BODY;
Willy Tarreaueee5b512015-04-03 23:46:31 +02001896 }
1897
1898 s->flags |= SF_BE_ASSIGNED;
Willy Tarreau96e31212011-05-30 18:10:30 +02001899 if (be->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001900 s->req.flags |= CF_NEVER_WAIT;
1901 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +02001902 }
1903
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001904 return 1;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001905}
1906
Willy Tarreau75fb65a2018-09-07 17:43:26 +02001907/* Capture a bad request or response and archive it in the proxy's structure.
1908 * It is relatively protocol-agnostic so it requires that a number of elements
1909 * are passed :
1910 * - <proxy> is the proxy where the error was detected and where the snapshot
1911 * needs to be stored
Joseph Herlant59dd2952018-11-15 11:46:55 -08001912 * - <is_back> indicates that the error happened when receiving the response
Willy Tarreau75fb65a2018-09-07 17:43:26 +02001913 * - <other_end> is a pointer to the proxy on the other side when known
1914 * - <target> is the target of the connection, usually a server or a proxy
1915 * - <sess> is the session which experienced the error
1916 * - <ctx> may be NULL or should contain any info relevant to the protocol
1917 * - <buf> is the buffer containing the offending data
1918 * - <buf_ofs> is the position of this buffer's input data in the input
1919 * stream, starting at zero. It may be passed as zero if unknown.
1920 * - <buf_out> is the portion of <buf->data> which was already forwarded and
1921 * which precedes the buffer's input. The buffer's input starts at
1922 * buf->head + buf_out.
1923 * - <err_pos> is the pointer to the faulty byte in the buffer's input.
1924 * - <show> is the callback to use to display <ctx>. It may be NULL.
1925 */
1926void proxy_capture_error(struct proxy *proxy, int is_back,
1927 struct proxy *other_end, enum obj_type *target,
1928 const struct session *sess,
1929 const struct buffer *buf, long buf_ofs,
1930 unsigned int buf_out, unsigned int err_pos,
1931 const union error_snapshot_ctx *ctx,
1932 void (*show)(struct buffer *, const struct error_snapshot *))
1933{
1934 struct error_snapshot *es;
1935 unsigned int buf_len;
1936 int len1, len2;
Willy Tarreauc55015e2018-09-07 19:02:32 +02001937 unsigned int ev_id;
1938
1939 ev_id = HA_ATOMIC_XADD(&error_snapshot_id, 1);
1940
Willy Tarreau4bc7d902018-09-07 20:07:17 +02001941 buf_len = b_data(buf) - buf_out;
1942
1943 es = malloc(sizeof(*es) + buf_len);
Willy Tarreauc55015e2018-09-07 19:02:32 +02001944 if (!es)
1945 return;
1946
Willy Tarreau4bc7d902018-09-07 20:07:17 +02001947 es->buf_len = buf_len;
1948 es->ev_id = ev_id;
Willy Tarreau75fb65a2018-09-07 17:43:26 +02001949
Christopher Faulet47a72102020-01-06 11:37:00 +01001950 len1 = b_size(buf) - b_peek_ofs(buf, buf_out);
Willy Tarreau75fb65a2018-09-07 17:43:26 +02001951 if (len1 > buf_len)
1952 len1 = buf_len;
Willy Tarreau75fb65a2018-09-07 17:43:26 +02001953
Willy Tarreau4bc7d902018-09-07 20:07:17 +02001954 if (len1) {
Willy Tarreau75fb65a2018-09-07 17:43:26 +02001955 memcpy(es->buf, b_peek(buf, buf_out), len1);
Willy Tarreau4bc7d902018-09-07 20:07:17 +02001956 len2 = buf_len - len1;
Willy Tarreau75fb65a2018-09-07 17:43:26 +02001957 if (len2)
1958 memcpy(es->buf + len1, b_orig(buf), len2);
1959 }
1960
1961 es->buf_err = err_pos;
1962 es->when = date; // user-visible date
1963 es->srv = objt_server(target);
1964 es->oe = other_end;
Olivier Houchardbdb00c52020-03-12 15:30:17 +01001965 if (sess && objt_conn(sess->origin) && conn_get_src(__objt_conn(sess->origin)))
Willy Tarreau026efc72019-07-17 15:20:02 +02001966 es->src = *__objt_conn(sess->origin)->src;
Willy Tarreau75fb65a2018-09-07 17:43:26 +02001967 else
1968 memset(&es->src, 0, sizeof(es->src));
1969
Willy Tarreau75fb65a2018-09-07 17:43:26 +02001970 es->buf_wrap = b_wrap(buf) - b_peek(buf, buf_out);
1971 es->buf_out = buf_out;
1972 es->buf_ofs = buf_ofs;
1973
1974 /* be sure to indicate the offset of the first IN byte */
1975 if (es->buf_ofs >= es->buf_len)
1976 es->buf_ofs -= es->buf_len;
1977 else
1978 es->buf_ofs = 0;
1979
1980 /* protocol-specific part now */
1981 if (ctx)
1982 es->ctx = *ctx;
1983 else
1984 memset(&es->ctx, 0, sizeof(es->ctx));
1985 es->show = show;
Willy Tarreauc55015e2018-09-07 19:02:32 +02001986
1987 /* note: we still lock since we have to be certain that nobody is
1988 * dumping the output while we free.
1989 */
Willy Tarreauac66d6b2020-10-20 17:24:27 +02001990 HA_RWLOCK_WRLOCK(PROXY_LOCK, &proxy->lock);
Willy Tarreauc55015e2018-09-07 19:02:32 +02001991 if (is_back) {
1992 es = HA_ATOMIC_XCHG(&proxy->invalid_rep, es);
1993 } else {
1994 es = HA_ATOMIC_XCHG(&proxy->invalid_req, es);
1995 }
1996 free(es);
Willy Tarreauac66d6b2020-10-20 17:24:27 +02001997 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &proxy->lock);
Willy Tarreau75fb65a2018-09-07 17:43:26 +02001998}
1999
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002000/* Configure all proxies which lack a maxconn setting to use the global one by
2001 * default. This avoids the common mistake consisting in setting maxconn only
2002 * in the global section and discovering the hard way that it doesn't propagate
2003 * through the frontends. These values are also propagated through the various
Ilya Shipitsin47d17182020-06-21 21:42:57 +05002004 * targeted backends, whose fullconn is finally calculated if not yet set.
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002005 */
2006void proxy_adjust_all_maxconn()
2007{
2008 struct proxy *curproxy;
2009 struct switching_rule *swrule1, *swrule2;
2010
2011 for (curproxy = proxies_list; curproxy; curproxy = curproxy->next) {
Willy Tarreauc3914d42020-09-24 08:39:22 +02002012 if (curproxy->disabled)
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002013 continue;
2014
2015 if (!(curproxy->cap & PR_CAP_FE))
2016 continue;
2017
2018 if (!curproxy->maxconn)
2019 curproxy->maxconn = global.maxconn;
2020
2021 /* update the target backend's fullconn count : default_backend */
2022 if (curproxy->defbe.be)
2023 curproxy->defbe.be->tot_fe_maxconn += curproxy->maxconn;
2024 else if ((curproxy->cap & PR_CAP_LISTEN) == PR_CAP_LISTEN)
2025 curproxy->tot_fe_maxconn += curproxy->maxconn;
2026
2027 list_for_each_entry(swrule1, &curproxy->switching_rules, list) {
2028 /* For each target of switching rules, we update their
2029 * tot_fe_maxconn, except if a previous rule points to
2030 * the same backend or to the default backend.
2031 */
2032 if (swrule1->be.backend != curproxy->defbe.be) {
Frédéric Lécaille2365fb02019-03-07 15:02:52 +01002033 /* note: swrule1->be.backend isn't a backend if the rule
2034 * is dynamic, it's an expression instead, so it must not
2035 * be dereferenced as a backend before being certain it is.
2036 */
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002037 list_for_each_entry(swrule2, &curproxy->switching_rules, list) {
2038 if (swrule2 == swrule1) {
Frédéric Lécaille2365fb02019-03-07 15:02:52 +01002039 if (!swrule1->dynamic)
2040 swrule1->be.backend->tot_fe_maxconn += curproxy->maxconn;
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002041 break;
2042 }
2043 else if (!swrule2->dynamic && swrule2->be.backend == swrule1->be.backend) {
2044 /* there are multiple refs of this backend */
2045 break;
2046 }
2047 }
2048 }
2049 }
2050 }
2051
2052 /* automatically compute fullconn if not set. We must not do it in the
2053 * loop above because cross-references are not yet fully resolved.
2054 */
2055 for (curproxy = proxies_list; curproxy; curproxy = curproxy->next) {
Willy Tarreauc3914d42020-09-24 08:39:22 +02002056 if (curproxy->disabled)
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002057 continue;
2058
2059 /* If <fullconn> is not set, let's set it to 10% of the sum of
2060 * the possible incoming frontend's maxconns.
2061 */
2062 if (!curproxy->fullconn && (curproxy->cap & PR_CAP_BE)) {
2063 /* we have the sum of the maxconns in <total>. We only
2064 * keep 10% of that sum to set the default fullconn, with
2065 * a hard minimum of 1 (to avoid a divide by zero).
2066 */
2067 curproxy->fullconn = (curproxy->tot_fe_maxconn + 9) / 10;
2068 if (!curproxy->fullconn)
2069 curproxy->fullconn = 1;
2070 }
2071 }
2072}
2073
Willy Tarreau75fb65a2018-09-07 17:43:26 +02002074/* Config keywords below */
2075
Willy Tarreaudc13c112013-06-21 23:16:39 +02002076static struct cfg_kw_list cfg_kws = {ILH, {
Cyril Bonté203ec5a2017-03-23 22:44:13 +01002077 { CFG_GLOBAL, "hard-stop-after", proxy_parse_hard_stop_after },
Willy Tarreau9de1bbd2008-07-09 20:34:27 +02002078 { CFG_LISTEN, "timeout", proxy_parse_timeout },
Tim Duesterhus86e6b6e2019-05-14 20:57:59 +02002079 { CFG_LISTEN, "clitimeout", proxy_parse_timeout }, /* This keyword actually fails to parse, this line remains for better error messages. */
2080 { CFG_LISTEN, "contimeout", proxy_parse_timeout }, /* This keyword actually fails to parse, this line remains for better error messages. */
2081 { 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 +01002082 { CFG_LISTEN, "rate-limit", proxy_parse_rate_limit },
Willy Tarreauc35362a2014-04-25 13:58:37 +02002083 { CFG_LISTEN, "max-keep-alive-queue", proxy_parse_max_ka_queue },
Thierry FOURNIERa0a1b752015-05-26 17:44:32 +02002084 { CFG_LISTEN, "declare", proxy_parse_declare },
Olivier Houcharda254a372019-04-05 15:30:12 +02002085 { CFG_LISTEN, "retry-on", proxy_parse_retry_on },
Willy Tarreau52543212020-07-09 05:58:51 +02002086#ifdef TCP_KEEPCNT
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +09002087 { CFG_LISTEN, "clitcpka-cnt", proxy_parse_tcpka_cnt },
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +09002088 { CFG_LISTEN, "srvtcpka-cnt", proxy_parse_tcpka_cnt },
Willy Tarreau52543212020-07-09 05:58:51 +02002089#endif
2090#ifdef TCP_KEEPIDLE
2091 { CFG_LISTEN, "clitcpka-idle", proxy_parse_tcpka_idle },
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +09002092 { CFG_LISTEN, "srvtcpka-idle", proxy_parse_tcpka_idle },
Willy Tarreau52543212020-07-09 05:58:51 +02002093#endif
2094#ifdef TCP_KEEPINTVL
2095 { CFG_LISTEN, "clitcpka-intvl", proxy_parse_tcpka_intvl },
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +09002096 { CFG_LISTEN, "srvtcpka-intvl", proxy_parse_tcpka_intvl },
Willy Tarreau52543212020-07-09 05:58:51 +02002097#endif
Willy Tarreau9de1bbd2008-07-09 20:34:27 +02002098 { 0, NULL, NULL },
2099}};
2100
Willy Tarreau0108d902018-11-25 19:14:37 +01002101INITCALL1(STG_REGISTER, cfg_register_keywords, &cfg_kws);
2102
Willy Tarreau960f2cb2016-11-24 12:02:29 +01002103/* Expects to find a frontend named <arg> and returns it, otherwise displays various
2104 * adequate error messages and returns NULL. This function is designed to be used by
2105 * functions requiring a frontend on the CLI.
2106 */
2107struct proxy *cli_find_frontend(struct appctx *appctx, const char *arg)
2108{
2109 struct proxy *px;
2110
2111 if (!*arg) {
Willy Tarreau9d008692019-08-09 11:21:01 +02002112 cli_err(appctx, "A frontend name is expected.\n");
Willy Tarreau960f2cb2016-11-24 12:02:29 +01002113 return NULL;
2114 }
2115
2116 px = proxy_fe_by_name(arg);
2117 if (!px) {
Willy Tarreau9d008692019-08-09 11:21:01 +02002118 cli_err(appctx, "No such frontend.\n");
Willy Tarreau960f2cb2016-11-24 12:02:29 +01002119 return NULL;
2120 }
2121 return px;
2122}
2123
Olivier Houchard614f8d72017-03-14 20:08:46 +01002124/* Expects to find a backend named <arg> and returns it, otherwise displays various
2125 * adequate error messages and returns NULL. This function is designed to be used by
2126 * functions requiring a frontend on the CLI.
2127 */
2128struct proxy *cli_find_backend(struct appctx *appctx, const char *arg)
2129{
2130 struct proxy *px;
2131
2132 if (!*arg) {
Willy Tarreau9d008692019-08-09 11:21:01 +02002133 cli_err(appctx, "A backend name is expected.\n");
Olivier Houchard614f8d72017-03-14 20:08:46 +01002134 return NULL;
2135 }
2136
2137 px = proxy_be_by_name(arg);
2138 if (!px) {
Willy Tarreau9d008692019-08-09 11:21:01 +02002139 cli_err(appctx, "No such backend.\n");
Olivier Houchard614f8d72017-03-14 20:08:46 +01002140 return NULL;
2141 }
2142 return px;
2143}
2144
2145
Willy Tarreau69f591e2020-07-01 07:00:59 +02002146/* parse a "show servers [state|conn]" CLI line, returns 0 if it wants to start
2147 * the dump or 1 if it stops immediately. If an argument is specified, it will
2148 * set the proxy pointer into cli.p0 and its ID into cli.i0. It sets cli.o0 to
2149 * 0 for "state", or 1 for "conn".
William Lallemanda6c5f332016-11-19 02:25:36 +01002150 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002151static int cli_parse_show_servers(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemanda6c5f332016-11-19 02:25:36 +01002152{
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002153 struct proxy *px;
William Lallemanda6c5f332016-11-19 02:25:36 +01002154
Willy Tarreau69f591e2020-07-01 07:00:59 +02002155 appctx->ctx.cli.o0 = *args[2] == 'c'; // "conn" vs "state"
2156
William Lallemanda6c5f332016-11-19 02:25:36 +01002157 /* check if a backend name has been provided */
2158 if (*args[3]) {
2159 /* read server state from local file */
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002160 px = proxy_be_by_name(args[3]);
William Lallemanda6c5f332016-11-19 02:25:36 +01002161
Willy Tarreau9d008692019-08-09 11:21:01 +02002162 if (!px)
2163 return cli_err(appctx, "Can't find backend.\n");
2164
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002165 appctx->ctx.cli.p0 = px;
2166 appctx->ctx.cli.i0 = px->uuid;
William Lallemanda6c5f332016-11-19 02:25:36 +01002167 }
2168 return 0;
2169}
2170
William Dauchyd1a7b852021-02-11 22:51:26 +01002171/* helper to dump server addr */
2172static void dump_server_addr(const struct sockaddr_storage *addr, char *addr_str)
2173{
2174 addr_str[0] = '\0';
2175 switch (addr->ss_family) {
2176 case AF_INET:
2177 case AF_INET6:
2178 addr_to_str(addr, addr_str, INET6_ADDRSTRLEN + 1);
2179 break;
2180 default:
2181 memcpy(addr_str, "-\0", 2);
2182 break;
2183 }
2184}
2185
Willy Tarreau6ff81432020-07-01 07:02:42 +02002186/* dumps server state information for all the servers found in backend cli.p0.
William Lallemanda6c5f332016-11-19 02:25:36 +01002187 * These information are all the parameters which may change during HAProxy runtime.
2188 * By default, we only export to the last known server state file format.
2189 * These information can be used at next startup to recover same level of server state.
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002190 * It uses the proxy pointer from cli.p0, the proxy's id from cli.i0 and the server's
2191 * pointer from cli.p1.
William Lallemanda6c5f332016-11-19 02:25:36 +01002192 */
Willy Tarreau6ff81432020-07-01 07:02:42 +02002193static int dump_servers_state(struct stream_interface *si)
William Lallemanda6c5f332016-11-19 02:25:36 +01002194{
2195 struct appctx *appctx = __objt_appctx(si->end);
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002196 struct proxy *px = appctx->ctx.cli.p0;
William Lallemanda6c5f332016-11-19 02:25:36 +01002197 struct server *srv;
2198 char srv_addr[INET6_ADDRSTRLEN + 1];
William Dauchyd1a7b852021-02-11 22:51:26 +01002199 char srv_agent_addr[INET6_ADDRSTRLEN + 1];
2200 char srv_check_addr[INET6_ADDRSTRLEN + 1];
William Lallemanda6c5f332016-11-19 02:25:36 +01002201 time_t srv_time_since_last_change;
2202 int bk_f_forced_id, srv_f_forced_id;
Baptiste Assmann6d0f38f2018-07-02 17:00:54 +02002203 char *srvrecord;
William Lallemanda6c5f332016-11-19 02:25:36 +01002204
William Lallemanda6c5f332016-11-19 02:25:36 +01002205 /* we don't want to report any state if the backend is not enabled on this process */
Willy Tarreau6daac192019-02-02 17:39:53 +01002206 if (!(proc_mask(px->bind_proc) & pid_bit))
William Lallemanda6c5f332016-11-19 02:25:36 +01002207 return 1;
2208
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002209 if (!appctx->ctx.cli.p1)
2210 appctx->ctx.cli.p1 = px->srv;
William Lallemanda6c5f332016-11-19 02:25:36 +01002211
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002212 for (; appctx->ctx.cli.p1 != NULL; appctx->ctx.cli.p1 = srv->next) {
2213 srv = appctx->ctx.cli.p1;
William Lallemanda6c5f332016-11-19 02:25:36 +01002214
William Dauchyd1a7b852021-02-11 22:51:26 +01002215 dump_server_addr(&srv->addr, srv_addr);
2216 dump_server_addr(&srv->check.addr, srv_check_addr);
2217 dump_server_addr(&srv->agent.addr, srv_agent_addr);
2218
William Lallemanda6c5f332016-11-19 02:25:36 +01002219 srv_time_since_last_change = now.tv_sec - srv->last_change;
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002220 bk_f_forced_id = px->options & PR_O_FORCED_ID ? 1 : 0;
William Lallemanda6c5f332016-11-19 02:25:36 +01002221 srv_f_forced_id = srv->flags & SRV_F_FORCED_ID ? 1 : 0;
2222
Baptiste Assmann6d0f38f2018-07-02 17:00:54 +02002223 srvrecord = NULL;
2224 if (srv->srvrq && srv->srvrq->name)
2225 srvrecord = srv->srvrq->name;
2226
Willy Tarreau69f591e2020-07-01 07:00:59 +02002227 if (appctx->ctx.cli.o0 == 0) {
2228 /* show servers state */
2229 chunk_printf(&trash,
2230 "%d %s "
2231 "%d %s %s "
2232 "%d %d %d %d %ld "
2233 "%d %d %d %d %d "
William Dauchyf6370442020-11-14 19:25:33 +01002234 "%d %d %s %u "
William Dauchyd1a7b852021-02-11 22:51:26 +01002235 "%s %d %d "
2236 "%s %s %d"
Willy Tarreau69f591e2020-07-01 07:00:59 +02002237 "\n",
2238 px->uuid, px->id,
2239 srv->puid, srv->id, srv_addr,
2240 srv->cur_state, srv->cur_admin, srv->uweight, srv->iweight, (long int)srv_time_since_last_change,
2241 srv->check.status, srv->check.result, srv->check.health, srv->check.state, srv->agent.state,
2242 bk_f_forced_id, srv_f_forced_id, srv->hostname ? srv->hostname : "-", srv->svc_port,
William Dauchyd1a7b852021-02-11 22:51:26 +01002243 srvrecord ? srvrecord : "-", srv->use_ssl, srv->check.port,
2244 srv_check_addr, srv_agent_addr, srv->agent.port);
Willy Tarreau69f591e2020-07-01 07:00:59 +02002245 } else {
2246 /* show servers conn */
2247 int thr;
2248
2249 chunk_printf(&trash,
2250 "%s/%s %d/%d %s %u - %u %u %u %u %u %u %d %u",
2251 px->id, srv->id, px->uuid, srv->puid, srv_addr,srv->svc_port,
2252 srv->pool_purge_delay,
2253 srv->curr_used_conns, srv->max_used_conns, srv->est_need_conns,
2254 srv->curr_idle_nb, srv->curr_safe_nb, (int)srv->max_idle_conns, srv->curr_idle_conns);
2255
Willy Tarreau42abe682020-07-02 15:19:57 +02002256 for (thr = 0; thr < global.nbthread && srv->curr_idle_thr; thr++)
Willy Tarreau69f591e2020-07-01 07:00:59 +02002257 chunk_appendf(&trash, " %u", srv->curr_idle_thr[thr]);
2258
2259 chunk_appendf(&trash, "\n");
2260 }
2261
Willy Tarreau06d80a92017-10-19 14:32:15 +02002262 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreaudb398432018-11-15 11:08:52 +01002263 si_rx_room_blk(si);
William Lallemanda6c5f332016-11-19 02:25:36 +01002264 return 0;
2265 }
2266 }
2267 return 1;
2268}
2269
2270/* Parses backend list or simply use backend name provided by the user to return
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002271 * states of servers to stdout. It dumps proxy <cli.p0> and stops if <cli.i0> is
2272 * non-null.
William Lallemanda6c5f332016-11-19 02:25:36 +01002273 */
2274static int cli_io_handler_servers_state(struct appctx *appctx)
2275{
2276 struct stream_interface *si = appctx->owner;
William Lallemanda6c5f332016-11-19 02:25:36 +01002277 struct proxy *curproxy;
2278
2279 chunk_reset(&trash);
2280
2281 if (appctx->st2 == STAT_ST_INIT) {
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002282 if (!appctx->ctx.cli.p0)
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002283 appctx->ctx.cli.p0 = proxies_list;
William Lallemanda6c5f332016-11-19 02:25:36 +01002284 appctx->st2 = STAT_ST_HEAD;
2285 }
2286
2287 if (appctx->st2 == STAT_ST_HEAD) {
Willy Tarreau69f591e2020-07-01 07:00:59 +02002288 if (appctx->ctx.cli.o0 == 0)
2289 chunk_printf(&trash, "%d\n# %s\n", SRV_STATE_FILE_VERSION, SRV_STATE_FILE_FIELD_NAMES);
2290 else
2291 chunk_printf(&trash,
2292 "# 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",
2293 global.nbthread);
2294
Willy Tarreau06d80a92017-10-19 14:32:15 +02002295 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreaudb398432018-11-15 11:08:52 +01002296 si_rx_room_blk(si);
William Lallemanda6c5f332016-11-19 02:25:36 +01002297 return 0;
2298 }
2299 appctx->st2 = STAT_ST_INFO;
2300 }
2301
2302 /* STAT_ST_INFO */
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002303 for (; appctx->ctx.cli.p0 != NULL; appctx->ctx.cli.p0 = curproxy->next) {
2304 curproxy = appctx->ctx.cli.p0;
William Lallemanda6c5f332016-11-19 02:25:36 +01002305 /* servers are only in backends */
2306 if (curproxy->cap & PR_CAP_BE) {
Willy Tarreau6ff81432020-07-01 07:02:42 +02002307 if (!dump_servers_state(si))
William Lallemanda6c5f332016-11-19 02:25:36 +01002308 return 0;
William Lallemanda6c5f332016-11-19 02:25:36 +01002309 }
2310 /* only the selected proxy is dumped */
Willy Tarreau3c92f2a2016-12-16 18:23:39 +01002311 if (appctx->ctx.cli.i0)
William Lallemanda6c5f332016-11-19 02:25:36 +01002312 break;
2313 }
2314
2315 return 1;
2316}
2317
Willy Tarreau608ea592016-12-16 18:01:15 +01002318/* Parses backend list and simply report backend names. It keeps the proxy
2319 * pointer in cli.p0.
2320 */
William Lallemand933efcd2016-11-22 12:34:16 +01002321static int cli_io_handler_show_backend(struct appctx *appctx)
2322{
William Lallemand933efcd2016-11-22 12:34:16 +01002323 struct stream_interface *si = appctx->owner;
2324 struct proxy *curproxy;
2325
2326 chunk_reset(&trash);
2327
Willy Tarreau608ea592016-12-16 18:01:15 +01002328 if (!appctx->ctx.cli.p0) {
William Lallemand933efcd2016-11-22 12:34:16 +01002329 chunk_printf(&trash, "# name\n");
Willy Tarreau06d80a92017-10-19 14:32:15 +02002330 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreaudb398432018-11-15 11:08:52 +01002331 si_rx_room_blk(si);
William Lallemand933efcd2016-11-22 12:34:16 +01002332 return 0;
2333 }
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002334 appctx->ctx.cli.p0 = proxies_list;
William Lallemand933efcd2016-11-22 12:34:16 +01002335 }
2336
Willy Tarreau608ea592016-12-16 18:01:15 +01002337 for (; appctx->ctx.cli.p0 != NULL; appctx->ctx.cli.p0 = curproxy->next) {
2338 curproxy = appctx->ctx.cli.p0;
William Lallemand933efcd2016-11-22 12:34:16 +01002339
2340 /* looking for backends only */
2341 if (!(curproxy->cap & PR_CAP_BE))
2342 continue;
2343
2344 /* we don't want to list a backend which is bound to this process */
Willy Tarreau6daac192019-02-02 17:39:53 +01002345 if (!(proc_mask(curproxy->bind_proc) & pid_bit))
William Lallemand933efcd2016-11-22 12:34:16 +01002346 continue;
2347
2348 chunk_appendf(&trash, "%s\n", curproxy->id);
Willy Tarreau06d80a92017-10-19 14:32:15 +02002349 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreaudb398432018-11-15 11:08:52 +01002350 si_rx_room_blk(si);
William Lallemand933efcd2016-11-22 12:34:16 +01002351 return 0;
2352 }
2353 }
2354
2355 return 1;
2356}
William Lallemanda6c5f332016-11-19 02:25:36 +01002357
Willy Tarreaua275a372018-08-21 14:50:44 +02002358/* Parses the "enable dynamic-cookies backend" directive, it always returns 1.
2359 *
2360 * Grabs the proxy lock and each server's lock.
2361 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002362static int cli_parse_enable_dyncookie_backend(char **args, char *payload, struct appctx *appctx, void *private)
Olivier Houchard614f8d72017-03-14 20:08:46 +01002363{
2364 struct proxy *px;
2365 struct server *s;
2366
2367 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2368 return 1;
2369
2370 px = cli_find_backend(appctx, args[3]);
2371 if (!px)
2372 return 1;
2373
Willy Tarreau5e83d992019-07-30 11:59:34 +02002374 /* Note: this lock is to make sure this doesn't change while another
2375 * thread is in srv_set_dyncookie().
2376 */
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002377 HA_RWLOCK_WRLOCK(PROXY_LOCK, &px->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002378 px->ck_opts |= PR_CK_DYNAMIC;
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002379 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &px->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002380
Willy Tarreaua275a372018-08-21 14:50:44 +02002381 for (s = px->srv; s != NULL; s = s->next) {
2382 HA_SPIN_LOCK(SERVER_LOCK, &s->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002383 srv_set_dyncookie(s);
Willy Tarreaua275a372018-08-21 14:50:44 +02002384 HA_SPIN_UNLOCK(SERVER_LOCK, &s->lock);
2385 }
2386
Olivier Houchard614f8d72017-03-14 20:08:46 +01002387 return 1;
2388}
2389
Willy Tarreaua275a372018-08-21 14:50:44 +02002390/* Parses the "disable dynamic-cookies backend" directive, it always returns 1.
2391 *
2392 * Grabs the proxy lock and each server's lock.
2393 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002394static int cli_parse_disable_dyncookie_backend(char **args, char *payload, struct appctx *appctx, void *private)
Olivier Houchard614f8d72017-03-14 20:08:46 +01002395{
2396 struct proxy *px;
2397 struct server *s;
2398
2399 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2400 return 1;
2401
2402 px = cli_find_backend(appctx, args[3]);
2403 if (!px)
2404 return 1;
2405
Willy Tarreau5e83d992019-07-30 11:59:34 +02002406 /* Note: this lock is to make sure this doesn't change while another
2407 * thread is in srv_set_dyncookie().
2408 */
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002409 HA_RWLOCK_WRLOCK(PROXY_LOCK, &px->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002410 px->ck_opts &= ~PR_CK_DYNAMIC;
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002411 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &px->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002412
2413 for (s = px->srv; s != NULL; s = s->next) {
Willy Tarreaua275a372018-08-21 14:50:44 +02002414 HA_SPIN_LOCK(SERVER_LOCK, &s->lock);
Willy Tarreau61cfdf42021-02-20 10:46:51 +01002415 if (!(s->flags & SRV_F_COOKIESET))
2416 ha_free(&s->cookie);
Willy Tarreaua275a372018-08-21 14:50:44 +02002417 HA_SPIN_UNLOCK(SERVER_LOCK, &s->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002418 }
2419
2420 return 1;
2421}
2422
Willy Tarreaua275a372018-08-21 14:50:44 +02002423/* Parses the "set dynamic-cookie-key backend" directive, it always returns 1.
2424 *
2425 * Grabs the proxy lock and each server's lock.
2426 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002427static int cli_parse_set_dyncookie_key_backend(char **args, char *payload, struct appctx *appctx, void *private)
Olivier Houchard614f8d72017-03-14 20:08:46 +01002428{
2429 struct proxy *px;
2430 struct server *s;
2431 char *newkey;
2432
2433 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2434 return 1;
2435
2436 px = cli_find_backend(appctx, args[3]);
2437 if (!px)
2438 return 1;
2439
Willy Tarreau9d008692019-08-09 11:21:01 +02002440 if (!*args[4])
2441 return cli_err(appctx, "String value expected.\n");
Olivier Houchard614f8d72017-03-14 20:08:46 +01002442
2443 newkey = strdup(args[4]);
Willy Tarreau9d008692019-08-09 11:21:01 +02002444 if (!newkey)
2445 return cli_err(appctx, "Failed to allocate memory.\n");
Willy Tarreaua275a372018-08-21 14:50:44 +02002446
Willy Tarreau5e83d992019-07-30 11:59:34 +02002447 /* Note: this lock is to make sure this doesn't change while another
2448 * thread is in srv_set_dyncookie().
2449 */
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002450 HA_RWLOCK_WRLOCK(PROXY_LOCK, &px->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002451 free(px->dyncookie_key);
2452 px->dyncookie_key = newkey;
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002453 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &px->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002454
Willy Tarreaua275a372018-08-21 14:50:44 +02002455 for (s = px->srv; s != NULL; s = s->next) {
2456 HA_SPIN_LOCK(SERVER_LOCK, &s->lock);
Olivier Houchard614f8d72017-03-14 20:08:46 +01002457 srv_set_dyncookie(s);
Willy Tarreaua275a372018-08-21 14:50:44 +02002458 HA_SPIN_UNLOCK(SERVER_LOCK, &s->lock);
2459 }
2460
Olivier Houchard614f8d72017-03-14 20:08:46 +01002461 return 1;
2462}
2463
Willy Tarreaua275a372018-08-21 14:50:44 +02002464/* Parses the "set maxconn frontend" directive, it always returns 1.
2465 *
2466 * Grabs the proxy lock.
2467 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002468static int cli_parse_set_maxconn_frontend(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002469{
2470 struct proxy *px;
2471 struct listener *l;
2472 int v;
2473
2474 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2475 return 1;
2476
2477 px = cli_find_frontend(appctx, args[3]);
2478 if (!px)
2479 return 1;
2480
Willy Tarreau9d008692019-08-09 11:21:01 +02002481 if (!*args[4])
2482 return cli_err(appctx, "Integer value expected.\n");
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002483
2484 v = atoi(args[4]);
Willy Tarreau9d008692019-08-09 11:21:01 +02002485 if (v < 0)
2486 return cli_err(appctx, "Value out of range.\n");
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002487
2488 /* OK, the value is fine, so we assign it to the proxy and to all of
2489 * its listeners. The blocked ones will be dequeued.
2490 */
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002491 HA_RWLOCK_WRLOCK(PROXY_LOCK, &px->lock);
Willy Tarreaua275a372018-08-21 14:50:44 +02002492
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002493 px->maxconn = v;
2494 list_for_each_entry(l, &px->conf.listeners, by_fe) {
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002495 if (l->state == LI_FULL)
2496 resume_listener(l);
2497 }
2498
Willy Tarreau241797a2019-12-10 14:10:52 +01002499 if (px->maxconn > px->feconn)
2500 dequeue_proxy_listeners(px);
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002501
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002502 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &px->lock);
Willy Tarreaua275a372018-08-21 14:50:44 +02002503
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002504 return 1;
2505}
2506
Willy Tarreaua275a372018-08-21 14:50:44 +02002507/* Parses the "shutdown frontend" directive, it always returns 1.
2508 *
2509 * Grabs the proxy lock.
2510 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002511static int cli_parse_shutdown_frontend(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau5212d7f2016-11-24 11:13:06 +01002512{
2513 struct proxy *px;
2514
2515 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2516 return 1;
2517
2518 px = cli_find_frontend(appctx, args[2]);
2519 if (!px)
2520 return 1;
2521
Willy Tarreauc3914d42020-09-24 08:39:22 +02002522 if (px->disabled)
Willy Tarreau9d008692019-08-09 11:21:01 +02002523 return cli_msg(appctx, LOG_NOTICE, "Frontend was already shut down.\n");
Willy Tarreau5212d7f2016-11-24 11:13:06 +01002524
Willy Tarreau5212d7f2016-11-24 11:13:06 +01002525 stop_proxy(px);
2526 return 1;
2527}
2528
Willy Tarreaua275a372018-08-21 14:50:44 +02002529/* Parses the "disable frontend" directive, it always returns 1.
2530 *
2531 * Grabs the proxy lock.
2532 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002533static int cli_parse_disable_frontend(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau15b9e682016-11-24 11:55:28 +01002534{
2535 struct proxy *px;
Willy Tarreaua275a372018-08-21 14:50:44 +02002536 int ret;
Willy Tarreau15b9e682016-11-24 11:55:28 +01002537
2538 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2539 return 1;
2540
2541 px = cli_find_frontend(appctx, args[2]);
2542 if (!px)
2543 return 1;
2544
Willy Tarreauc3914d42020-09-24 08:39:22 +02002545 if (px->disabled)
Willy Tarreau9d008692019-08-09 11:21:01 +02002546 return cli_msg(appctx, LOG_NOTICE, "Frontend was previously shut down, cannot disable.\n");
Willy Tarreau15b9e682016-11-24 11:55:28 +01002547
Willy Tarreauf18d9682020-09-24 08:04:27 +02002548 if (!px->li_ready)
2549 return cli_msg(appctx, LOG_NOTICE, "All sockets are already disabled.\n");
Willy Tarreau15b9e682016-11-24 11:55:28 +01002550
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002551 HA_RWLOCK_WRLOCK(PROXY_LOCK, &px->lock);
Willy Tarreaua275a372018-08-21 14:50:44 +02002552 ret = pause_proxy(px);
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002553 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &px->lock);
Willy Tarreaua275a372018-08-21 14:50:44 +02002554
Willy Tarreau9d008692019-08-09 11:21:01 +02002555 if (!ret)
2556 return cli_err(appctx, "Failed to pause frontend, check logs for precise cause.\n");
2557
Willy Tarreau15b9e682016-11-24 11:55:28 +01002558 return 1;
2559}
2560
Willy Tarreaua275a372018-08-21 14:50:44 +02002561/* Parses the "enable frontend" directive, it always returns 1.
2562 *
2563 * Grabs the proxy lock.
2564 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002565static int cli_parse_enable_frontend(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau15b9e682016-11-24 11:55:28 +01002566{
2567 struct proxy *px;
Willy Tarreaua275a372018-08-21 14:50:44 +02002568 int ret;
Willy Tarreau15b9e682016-11-24 11:55:28 +01002569
2570 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
2571 return 1;
2572
2573 px = cli_find_frontend(appctx, args[2]);
2574 if (!px)
2575 return 1;
2576
Willy Tarreauc3914d42020-09-24 08:39:22 +02002577 if (px->disabled)
Willy Tarreau9d008692019-08-09 11:21:01 +02002578 return cli_err(appctx, "Frontend was previously shut down, cannot enable.\n");
Willy Tarreau15b9e682016-11-24 11:55:28 +01002579
Willy Tarreauf18d9682020-09-24 08:04:27 +02002580 if (px->li_ready == px->li_all)
2581 return cli_msg(appctx, LOG_NOTICE, "All sockets are already enabled.\n");
Willy Tarreau15b9e682016-11-24 11:55:28 +01002582
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002583 HA_RWLOCK_WRLOCK(PROXY_LOCK, &px->lock);
Willy Tarreaua275a372018-08-21 14:50:44 +02002584 ret = resume_proxy(px);
Willy Tarreauac66d6b2020-10-20 17:24:27 +02002585 HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &px->lock);
Willy Tarreaua275a372018-08-21 14:50:44 +02002586
Willy Tarreau9d008692019-08-09 11:21:01 +02002587 if (!ret)
2588 return cli_err(appctx, "Failed to resume frontend, check logs for precise cause (port conflict?).\n");
Willy Tarreau15b9e682016-11-24 11:55:28 +01002589 return 1;
2590}
2591
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002592/* "show errors" handler for the CLI. Returns 0 if wants to continue, 1 to stop
2593 * now.
2594 */
2595static int cli_parse_show_errors(char **args, char *payload, struct appctx *appctx, void *private)
2596{
2597 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
2598 return 1;
2599
2600 if (*args[2]) {
2601 struct proxy *px;
2602
2603 px = proxy_find_by_name(args[2], 0, 0);
2604 if (px)
2605 appctx->ctx.errors.iid = px->uuid;
2606 else
2607 appctx->ctx.errors.iid = atoi(args[2]);
2608
Willy Tarreau9d008692019-08-09 11:21:01 +02002609 if (!appctx->ctx.errors.iid)
2610 return cli_err(appctx, "No such proxy.\n");
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002611 }
2612 else
2613 appctx->ctx.errors.iid = -1; // dump all proxies
2614
2615 appctx->ctx.errors.flag = 0;
2616 if (strcmp(args[3], "request") == 0)
2617 appctx->ctx.errors.flag |= 4; // ignore response
2618 else if (strcmp(args[3], "response") == 0)
2619 appctx->ctx.errors.flag |= 2; // ignore request
2620 appctx->ctx.errors.px = NULL;
2621 return 0;
2622}
2623
2624/* This function dumps all captured errors onto the stream interface's
2625 * read buffer. It returns 0 if the output buffer is full and it needs
2626 * to be called again, otherwise non-zero.
2627 */
2628static int cli_io_handler_show_errors(struct appctx *appctx)
2629{
2630 struct stream_interface *si = appctx->owner;
2631 extern const char *monthname[12];
2632
2633 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW)))
2634 return 1;
2635
2636 chunk_reset(&trash);
2637
2638 if (!appctx->ctx.errors.px) {
2639 /* the function had not been called yet, let's prepare the
2640 * buffer for a response.
2641 */
2642 struct tm tm;
2643
2644 get_localtime(date.tv_sec, &tm);
2645 chunk_appendf(&trash, "Total events captured on [%02d/%s/%04d:%02d:%02d:%02d.%03d] : %u\n",
2646 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
2647 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(date.tv_usec/1000),
2648 error_snapshot_id);
2649
Willy Tarreau36b27362018-09-07 19:55:44 +02002650 if (ci_putchk(si_ic(si), &trash) == -1)
2651 goto cant_send;
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002652
2653 appctx->ctx.errors.px = proxies_list;
2654 appctx->ctx.errors.bol = 0;
2655 appctx->ctx.errors.ptr = -1;
2656 }
2657
2658 /* we have two inner loops here, one for the proxy, the other one for
2659 * the buffer.
2660 */
2661 while (appctx->ctx.errors.px) {
2662 struct error_snapshot *es;
2663
Willy Tarreau55039082020-10-20 17:38:10 +02002664 HA_RWLOCK_RDLOCK(PROXY_LOCK, &appctx->ctx.errors.px->lock);
Willy Tarreau36b27362018-09-07 19:55:44 +02002665
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002666 if ((appctx->ctx.errors.flag & 1) == 0) {
Willy Tarreauc55015e2018-09-07 19:02:32 +02002667 es = appctx->ctx.errors.px->invalid_req;
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002668 if (appctx->ctx.errors.flag & 2) // skip req
2669 goto next;
2670 }
2671 else {
Willy Tarreauc55015e2018-09-07 19:02:32 +02002672 es = appctx->ctx.errors.px->invalid_rep;
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002673 if (appctx->ctx.errors.flag & 4) // skip resp
2674 goto next;
2675 }
2676
Willy Tarreauc55015e2018-09-07 19:02:32 +02002677 if (!es)
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002678 goto next;
2679
2680 if (appctx->ctx.errors.iid >= 0 &&
2681 appctx->ctx.errors.px->uuid != appctx->ctx.errors.iid &&
Olivier Houchardbdb00c52020-03-12 15:30:17 +01002682 (!es->oe || es->oe->uuid != appctx->ctx.errors.iid))
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002683 goto next;
2684
2685 if (appctx->ctx.errors.ptr < 0) {
2686 /* just print headers now */
2687
2688 char pn[INET6_ADDRSTRLEN];
2689 struct tm tm;
2690 int port;
2691
2692 get_localtime(es->when.tv_sec, &tm);
2693 chunk_appendf(&trash, " \n[%02d/%s/%04d:%02d:%02d:%02d.%03d]",
2694 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
2695 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(es->when.tv_usec/1000));
2696
2697 switch (addr_to_str(&es->src, pn, sizeof(pn))) {
2698 case AF_INET:
2699 case AF_INET6:
2700 port = get_host_port(&es->src);
2701 break;
2702 default:
2703 port = 0;
2704 }
2705
2706 switch (appctx->ctx.errors.flag & 1) {
2707 case 0:
2708 chunk_appendf(&trash,
2709 " frontend %s (#%d): invalid request\n"
2710 " backend %s (#%d)",
2711 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
Olivier Houchardbdb00c52020-03-12 15:30:17 +01002712 (es->oe && es->oe->cap & PR_CAP_BE) ? es->oe->id : "<NONE>",
2713 (es->oe && es->oe->cap & PR_CAP_BE) ? es->oe->uuid : -1);
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002714 break;
2715 case 1:
2716 chunk_appendf(&trash,
2717 " backend %s (#%d): invalid response\n"
2718 " frontend %s (#%d)",
2719 appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
Olivier Houchardbdb00c52020-03-12 15:30:17 +01002720 es->oe ? es->oe->id : "<NONE>" , es->oe ? es->oe->uuid : -1);
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002721 break;
2722 }
2723
2724 chunk_appendf(&trash,
2725 ", server %s (#%d), event #%u, src %s:%d\n"
2726 " buffer starts at %llu (including %u out), %u free,\n"
2727 " len %u, wraps at %u, error at position %u\n",
2728 es->srv ? es->srv->id : "<NONE>",
2729 es->srv ? es->srv->puid : -1,
2730 es->ev_id, pn, port,
2731 es->buf_ofs, es->buf_out,
2732 global.tune.bufsize - es->buf_out - es->buf_len,
2733 es->buf_len, es->buf_wrap, es->buf_err);
2734
2735 if (es->show)
2736 es->show(&trash, es);
2737
2738 chunk_appendf(&trash, " \n");
2739
Willy Tarreau36b27362018-09-07 19:55:44 +02002740 if (ci_putchk(si_ic(si), &trash) == -1)
2741 goto cant_send_unlock;
2742
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002743 appctx->ctx.errors.ptr = 0;
2744 appctx->ctx.errors.ev_id = es->ev_id;
2745 }
2746
2747 if (appctx->ctx.errors.ev_id != es->ev_id) {
2748 /* the snapshot changed while we were dumping it */
2749 chunk_appendf(&trash,
2750 " WARNING! update detected on this snapshot, dump interrupted. Please re-check!\n");
Willy Tarreau36b27362018-09-07 19:55:44 +02002751 if (ci_putchk(si_ic(si), &trash) == -1)
2752 goto cant_send_unlock;
2753
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002754 goto next;
2755 }
2756
2757 /* OK, ptr >= 0, so we have to dump the current line */
Willy Tarreau4bc7d902018-09-07 20:07:17 +02002758 while (appctx->ctx.errors.ptr < es->buf_len && appctx->ctx.errors.ptr < global.tune.bufsize) {
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002759 int newptr;
2760 int newline;
2761
2762 newline = appctx->ctx.errors.bol;
2763 newptr = dump_text_line(&trash, es->buf, global.tune.bufsize, es->buf_len, &newline, appctx->ctx.errors.ptr);
2764 if (newptr == appctx->ctx.errors.ptr)
Willy Tarreau36b27362018-09-07 19:55:44 +02002765 goto cant_send_unlock;
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002766
Willy Tarreau36b27362018-09-07 19:55:44 +02002767 if (ci_putchk(si_ic(si), &trash) == -1)
2768 goto cant_send_unlock;
2769
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002770 appctx->ctx.errors.ptr = newptr;
2771 appctx->ctx.errors.bol = newline;
2772 };
2773 next:
Willy Tarreau55039082020-10-20 17:38:10 +02002774 HA_RWLOCK_RDUNLOCK(PROXY_LOCK, &appctx->ctx.errors.px->lock);
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002775 appctx->ctx.errors.bol = 0;
2776 appctx->ctx.errors.ptr = -1;
2777 appctx->ctx.errors.flag ^= 1;
2778 if (!(appctx->ctx.errors.flag & 1))
2779 appctx->ctx.errors.px = appctx->ctx.errors.px->next;
2780 }
2781
2782 /* dump complete */
2783 return 1;
Willy Tarreau36b27362018-09-07 19:55:44 +02002784
2785 cant_send_unlock:
Willy Tarreau55039082020-10-20 17:38:10 +02002786 HA_RWLOCK_RDUNLOCK(PROXY_LOCK, &appctx->ctx.errors.px->lock);
Willy Tarreau36b27362018-09-07 19:55:44 +02002787 cant_send:
Willy Tarreaudb398432018-11-15 11:08:52 +01002788 si_rx_room_blk(si);
Willy Tarreau36b27362018-09-07 19:55:44 +02002789 return 0;
Willy Tarreauddb68ac2018-09-07 18:34:24 +02002790}
2791
William Lallemanda6c5f332016-11-19 02:25:36 +01002792/* register cli keywords */
2793static struct cli_kw_list cli_kws = {{ },{
Willy Tarreau15b9e682016-11-24 11:55:28 +01002794 { { "disable", "frontend", NULL }, "disable frontend : temporarily disable specific frontend", cli_parse_disable_frontend, NULL, NULL },
2795 { { "enable", "frontend", NULL }, "enable frontend : re-enable specific frontend", cli_parse_enable_frontend, NULL, NULL },
Willy Tarreauc429a1f2016-11-23 16:22:04 +01002796 { { "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 +02002797 { { "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 +01002798 { { "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 +01002799 { { "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 +01002800 { { "shutdown", "frontend", NULL }, "shutdown frontend : stop a specific frontend", cli_parse_shutdown_frontend, NULL, NULL },
Olivier Houchard614f8d72017-03-14 20:08:46 +01002801 { { "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 },
2802 { { "enable", "dynamic-cookie", "backend", NULL }, "enable dynamic-cookie backend : enable dynamic cookies on a specific backend", cli_parse_enable_dyncookie_backend, NULL },
2803 { { "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 +02002804 { { "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 +01002805 {{},}
2806}};
2807
Willy Tarreau0108d902018-11-25 19:14:37 +01002808INITCALL1(STG_REGISTER, cli_register_kw, &cli_kws);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002809
2810/*
2811 * Local variables:
2812 * c-indent-level: 8
2813 * c-basic-offset: 8
2814 * End:
2815 */