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Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
Willy Tarreau87b09662015-04-03 00:22:06 +02002 * Stream management functions.
Willy Tarreaubaaee002006-06-26 02:48:02 +02003 *
Willy Tarreaud28c3532012-04-19 19:28:33 +02004 * Copyright 2000-2012 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 <stdlib.h>
Willy Tarreau81f9aa32010-06-01 17:45:26 +020014#include <unistd.h>
15#include <fcntl.h>
Willy Tarreaue3ba5f02006-06-29 18:54:54 +020016
Thierry FOURNIER5a363e72015-09-27 19:29:33 +020017#include <common/cfgparse.h>
Willy Tarreaue3ba5f02006-06-29 18:54:54 +020018#include <common/config.h>
Willy Tarreau9b28e032012-10-12 23:49:43 +020019#include <common/buffer.h>
Willy Tarreau7c669d72008-06-20 15:04:11 +020020#include <common/debug.h>
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +020021#include <common/hathreads.h>
Willy Tarreaub96b77e2018-12-11 10:22:41 +010022#include <common/htx.h>
Willy Tarreau0108d902018-11-25 19:14:37 +010023#include <common/initcall.h>
24#include <common/memory.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020025
Willy Tarreau8a8d83b2015-04-13 13:24:54 +020026#include <types/applet.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020027#include <types/capture.h>
William Lallemand4c5b4d52016-11-21 08:51:11 +010028#include <types/cli.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +020029#include <types/filters.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010030#include <types/global.h>
William Lallemand9ed62032016-11-21 17:49:11 +010031#include <types/stats.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020032
Willy Tarreau1d0dfb12009-07-07 15:10:31 +020033#include <proto/acl.h>
Thierry FOURNIER5a363e72015-09-27 19:29:33 +020034#include <proto/action.h>
Willy Tarreau609aad92018-11-22 08:31:09 +010035#include <proto/activity.h>
Willy Tarreau61612d42012-04-19 18:42:05 +020036#include <proto/arg.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010037#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020038#include <proto/channel.h>
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +010039#include <proto/checks.h>
William Lallemand4c5b4d52016-11-21 08:51:11 +010040#include <proto/cli.h>
Willy Tarreaud2274c62012-07-06 14:29:45 +020041#include <proto/connection.h>
Frédéric Lécaille03cdf552019-05-20 10:08:27 +020042#include <proto/dict.h>
Baptiste Assmann333939c2019-01-21 08:34:50 +010043#include <proto/dns.h>
William Lallemand9ed62032016-11-21 17:49:11 +010044#include <proto/stats.h>
Willy Tarreaudd2f85e2012-09-02 22:34:23 +020045#include <proto/fd.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +020046#include <proto/filters.h>
Willy Tarreau91c43d72010-06-20 11:19:22 +020047#include <proto/freq_ctr.h>
Willy Tarreau3041b9f2010-10-15 23:25:20 +020048#include <proto/frontend.h>
Willy Tarreau8d5d7f22007-01-21 19:16:41 +010049#include <proto/hdr_idx.h>
Thierry FOURNIER65f34c62015-02-16 20:11:43 +010050#include <proto/hlua.h>
Willy Tarreau61c112a2018-10-02 16:43:32 +020051#include <proto/http_rules.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +020052#include <proto/listener.h>
Willy Tarreau332f8bf2007-05-13 21:36:56 +020053#include <proto/log.h>
Willy Tarreaucbaaec42012-09-06 11:32:07 +020054#include <proto/raw_sock.h>
Willy Tarreaufeb76402015-04-03 14:10:06 +020055#include <proto/session.h>
Willy Tarreau87b09662015-04-03 00:22:06 +020056#include <proto/stream.h>
Willy Tarreau3eba98a2009-01-25 13:56:13 +010057#include <proto/pipe.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010058#include <proto/proto_http.h>
Willy Tarreau1d0dfb12009-07-07 15:10:31 +020059#include <proto/proxy.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020060#include <proto/queue.h>
Willy Tarreau7f062c42009-03-05 18:43:00 +010061#include <proto/server.h>
Willy Tarreaucd3b0942012-04-27 21:52:18 +020062#include <proto/sample.h>
Emeric Brun1d33b292010-01-04 15:47:17 +010063#include <proto/stick_table.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010064#include <proto/stream_interface.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010065#include <proto/task.h>
Willy Tarreau39713102016-11-25 15:49:32 +010066#include <proto/tcp_rules.h>
Thierry FOURNIER4834bc72015-06-06 19:29:07 +020067#include <proto/vars.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020068
Willy Tarreau8ceae722018-11-26 11:58:30 +010069DECLARE_POOL(pool_head_stream, "stream", sizeof(struct stream));
70
Willy Tarreaub6b3df32018-11-26 16:31:20 +010071struct list streams = LIST_HEAD_INIT(streams);
Willy Tarreau86abe442018-11-25 20:12:18 +010072__decl_spinlock(streams_lock);
Willy Tarreaubaaee002006-06-26 02:48:02 +020073
Thierry FOURNIER5a363e72015-09-27 19:29:33 +020074/* List of all use-service keywords. */
75static struct list service_keywords = LIST_HEAD_INIT(service_keywords);
76
Willy Tarreau5790eb02017-08-28 17:18:36 +020077
78/* Create a new stream for connection <conn>. Return < 0 on error. This is only
79 * valid right after the handshake, before the connection's data layer is
80 * initialized, because it relies on the session to be in conn->owner.
81 */
Olivier Houchard9aaf7782017-09-13 18:30:23 +020082int stream_create_from_cs(struct conn_stream *cs)
Willy Tarreau5790eb02017-08-28 17:18:36 +020083{
84 struct stream *strm;
85
Olivier Houchard9aaf7782017-09-13 18:30:23 +020086 strm = stream_new(cs->conn->owner, &cs->obj_type);
Willy Tarreau5790eb02017-08-28 17:18:36 +020087 if (strm == NULL)
88 return -1;
89
90 task_wakeup(strm->task, TASK_WOKEN_INIT);
91 return 0;
92}
93
Willy Tarreaub882dd82018-11-06 15:50:21 +010094/* Callback used to wake up a stream when an input buffer is available. The
95 * stream <s>'s stream interfaces are checked for a failed buffer allocation
Willy Tarreaud0f5bbc2018-11-14 11:10:26 +010096 * as indicated by the presence of the SI_FL_RXBLK_ROOM flag and the lack of a
Willy Tarreaub882dd82018-11-06 15:50:21 +010097 * buffer, and and input buffer is assigned there (at most one). The function
98 * returns 1 and wakes the stream up if a buffer was taken, otherwise zero.
99 * It's designed to be called from __offer_buffer().
100 */
101int stream_buf_available(void *arg)
102{
103 struct stream *s = arg;
104
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100105 if (!s->req.buf.size && !s->req.pipe && (s->si[0].flags & SI_FL_RXBLK_BUFF) &&
Willy Tarreaub882dd82018-11-06 15:50:21 +0100106 b_alloc_margin(&s->req.buf, global.tune.reserved_bufs))
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100107 si_rx_buff_rdy(&s->si[0]);
108 else if (!s->res.buf.size && !s->res.pipe && (s->si[1].flags & SI_FL_RXBLK_BUFF) &&
Willy Tarreaub882dd82018-11-06 15:50:21 +0100109 b_alloc_margin(&s->res.buf, 0))
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100110 si_rx_buff_rdy(&s->si[1]);
Willy Tarreaub882dd82018-11-06 15:50:21 +0100111 else
112 return 0;
113
114 task_wakeup(s->task, TASK_WOKEN_RES);
115 return 1;
116
117}
118
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200119/* This function is called from the session handler which detects the end of
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200120 * handshake, in order to complete initialization of a valid stream. It must be
Joseph Herlant4cc8d0d2018-11-15 09:14:14 -0800121 * called with a completely initialized session. It returns the pointer to
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200122 * the newly created stream, or NULL in case of fatal error. The client-facing
Willy Tarreau87787ac2017-08-28 16:22:54 +0200123 * end point is assigned to <origin>, which must be valid. The stream's task
124 * is configured with a nice value inherited from the listener's nice if any.
125 * The task's context is set to the new stream, and its function is set to
126 * process_stream(). Target and analysers are null.
Willy Tarreau2542b532012-08-31 16:01:23 +0200127 */
Willy Tarreau87787ac2017-08-28 16:22:54 +0200128struct stream *stream_new(struct session *sess, enum obj_type *origin)
Willy Tarreau2542b532012-08-31 16:01:23 +0200129{
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200130 struct stream *s;
Willy Tarreau87787ac2017-08-28 16:22:54 +0200131 struct task *t;
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200132 struct conn_stream *cs = objt_cs(origin);
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200133 struct appctx *appctx = objt_appctx(origin);
Christopher Fauletb3484d62018-11-29 15:19:05 +0100134 const struct cs_info *csinfo;
Willy Tarreau2542b532012-08-31 16:01:23 +0200135
Willy Tarreaubafbe012017-11-24 17:34:44 +0100136 if (unlikely((s = pool_alloc(pool_head_stream)) == NULL))
Willy Tarreau87787ac2017-08-28 16:22:54 +0200137 goto out_fail_alloc;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200138
139 /* minimum stream initialization required for an embryonic stream is
140 * fairly low. We need very little to execute L4 ACLs, then we need a
141 * task to make the client-side connection live on its own.
142 * - flags
143 * - stick-entry tracking
144 */
145 s->flags = 0;
Willy Tarreaufb9f5842015-04-05 18:19:23 +0200146 s->logs.logwait = sess->fe->to_log;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200147 s->logs.level = 0;
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200148 tv_zero(&s->logs.tv_request);
149 s->logs.t_queue = -1;
150 s->logs.t_connect = -1;
151 s->logs.t_data = -1;
152 s->logs.t_close = 0;
153 s->logs.bytes_in = s->logs.bytes_out = 0;
Patrick Hemmerffe5e8c2018-05-11 12:52:31 -0400154 s->logs.prx_queue_pos = 0; /* we get the number of pending conns before us */
155 s->logs.srv_queue_pos = 0; /* we will get this number soon */
Baptiste Assmann333939c2019-01-21 08:34:50 +0100156 s->obj_type = OBJ_TYPE_STREAM;
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200157
Christopher Fauletb3484d62018-11-29 15:19:05 +0100158 csinfo = si_get_cs_info(cs);
159 if (csinfo) {
160 s->logs.accept_date = csinfo->create_date;
161 s->logs.tv_accept = csinfo->tv_create;
162 s->logs.t_handshake = csinfo->t_handshake;
163 s->logs.t_idle = csinfo->t_idle;
164 }
165 else {
166 s->logs.accept_date = sess->accept_date;
167 s->logs.tv_accept = sess->tv_accept;
168 s->logs.t_handshake = sess->t_handshake;
169 s->logs.t_idle = -1;
170 }
171
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200172 /* default logging function */
173 s->do_log = strm_log;
174
175 /* default error reporting function, may be changed by analysers */
176 s->srv_error = default_srv_error;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200177
178 /* Initialise the current rule list pointer to NULL. We are sure that
179 * any rulelist match the NULL pointer.
180 */
181 s->current_rule_list = NULL;
Remi Gacogne7fb9de22015-07-22 17:10:58 +0200182 s->current_rule = NULL;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200183
Willy Tarreaua68f7622015-09-21 17:48:24 +0200184 /* Copy SC counters for the stream. We don't touch refcounts because
185 * any reference we have is inherited from the session. Since the stream
186 * doesn't exist without the session, the session's existence guarantees
187 * we don't lose the entry. During the store operation, the stream won't
188 * touch these ones.
Thierry FOURNIER827752e2015-08-18 11:34:18 +0200189 */
Thierry FOURNIERc8fdb982015-08-16 12:03:39 +0200190 memcpy(s->stkctr, sess->stkctr, sizeof(s->stkctr));
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200191
192 s->sess = sess;
193 s->si[0].flags = SI_FL_NONE;
194 s->si[1].flags = SI_FL_ISBACK;
195
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100196 s->uniq_id = _HA_ATOMIC_XADD(&global.req_count, 1);
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200197
Willy Tarreau87b09662015-04-03 00:22:06 +0200198 /* OK, we're keeping the stream, so let's properly initialize the stream */
Willy Tarreau2542b532012-08-31 16:01:23 +0200199 LIST_INIT(&s->back_refs);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100200
201 LIST_INIT(&s->buffer_wait.list);
202 s->buffer_wait.target = s;
Willy Tarreaub882dd82018-11-06 15:50:21 +0100203 s->buffer_wait.wakeup_cb = stream_buf_available;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200204
Willy Tarreau2e9c1d22019-04-24 08:28:31 +0200205 s->call_rate.curr_sec = s->call_rate.curr_ctr = s->call_rate.prev_ctr = 0;
William Lallemandcf62f7e2018-10-26 14:47:40 +0200206 s->pcli_next_pid = 0;
William Lallemandebf61802018-12-11 16:10:57 +0100207 s->pcli_flags = 0;
Willy Tarreau2542b532012-08-31 16:01:23 +0200208 s->unique_id = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200209
Emeric Brunc60def82017-09-27 14:59:38 +0200210 if ((t = task_new(tid_bit)) == NULL)
Willy Tarreau87787ac2017-08-28 16:22:54 +0200211 goto out_fail_alloc;
212
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200213 s->task = t;
Christopher Faulet9d810ca2016-12-08 22:33:52 +0100214 s->pending_events = 0;
Willy Tarreaud1769b82015-04-06 00:25:48 +0200215 t->process = process_stream;
Willy Tarreau2542b532012-08-31 16:01:23 +0200216 t->context = s;
217 t->expire = TICK_ETERNITY;
Willy Tarreau87787ac2017-08-28 16:22:54 +0200218 if (sess->listener)
219 t->nice = sess->listener->nice;
Willy Tarreau2542b532012-08-31 16:01:23 +0200220
Willy Tarreau87b09662015-04-03 00:22:06 +0200221 /* Note: initially, the stream's backend points to the frontend.
Willy Tarreau2542b532012-08-31 16:01:23 +0200222 * This changes later when switching rules are executed or
223 * when the default backend is assigned.
224 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200225 s->be = sess->fe;
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200226 s->req.buf = BUF_NULL;
227 s->res.buf = BUF_NULL;
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200228 s->req_cap = NULL;
229 s->res_cap = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200230
Willy Tarreauebcd4842015-06-19 11:59:02 +0200231 /* Initialise all the variables contexts even if not used.
232 * This permits to prune these contexts without errors.
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200233 */
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200234 vars_init(&s->vars_txn, SCOPE_TXN);
235 vars_init(&s->vars_reqres, SCOPE_REQ);
236
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200237 /* this part should be common with other protocols */
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200238 if (si_reset(&s->si[0]) < 0)
239 goto out_fail_alloc;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200240 si_set_state(&s->si[0], SI_ST_EST);
Hongbo Longe39683c2017-03-10 18:41:51 +0100241 s->si[0].hcto = sess->fe->timeout.clientfin;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200242
Christopher Faulet0e160ff2019-04-03 10:01:07 +0200243 if (cs && cs->conn->mux) {
244 if (cs->conn->mux->flags & MX_FL_CLEAN_ABRT)
245 s->si[0].flags |= SI_FL_CLEAN_ABRT;
246 if (cs->conn->mux->flags & MX_FL_HTX)
247 s->flags |= SF_HTX;
248 }
249 /* Set SF_HTX flag for HTX frontends. */
250 if (sess->fe->mode == PR_MODE_HTTP && sess->fe->options2 & PR_O2_USE_HTX)
251 s->flags |= SF_HTX;
Willy Tarreau984fca92017-12-20 16:31:43 +0100252
Willy Tarreau1f52bb22015-04-04 14:28:46 +0200253 /* attach the incoming connection to the stream interface now. */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200254 if (cs)
255 si_attach_cs(&s->si[0], cs);
Willy Tarreau470280e2015-04-05 01:33:13 +0200256 else if (appctx)
257 si_attach_appctx(&s->si[0], appctx);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200258
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200259 if (likely(sess->fe->options2 & PR_O2_INDEPSTR))
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200260 s->si[0].flags |= SI_FL_INDEP_STR;
261
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200262 /* pre-initialize the other side's stream interface to an INIT state. The
263 * callbacks will be initialized before attempting to connect.
264 */
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200265 if (si_reset(&s->si[1]) < 0)
266 goto out_fail_alloc_si1;
Hongbo Longe39683c2017-03-10 18:41:51 +0100267 s->si[1].hcto = TICK_ETERNITY;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200268
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200269 if (likely(sess->fe->options2 & PR_O2_INDEPSTR))
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200270 s->si[1].flags |= SI_FL_INDEP_STR;
271
Willy Tarreau87b09662015-04-03 00:22:06 +0200272 stream_init_srv_conn(s);
Willy Tarreau9b82d942016-12-05 00:26:31 +0100273 s->target = sess->listener ? sess->listener->default_target : NULL;
274
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200275 s->pend_pos = NULL;
Patrick Hemmer268a7072018-05-11 12:52:31 -0400276 s->priority_class = 0;
277 s->priority_offset = 0;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200278
279 /* init store persistence */
280 s->store_count = 0;
281
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100282 channel_init(&s->req);
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100283 s->req.flags |= CF_READ_ATTACHED; /* the producer is already connected */
Willy Tarreau9b82d942016-12-05 00:26:31 +0100284 s->req.analysers = sess->listener ? sess->listener->analysers : 0;
Willy Tarreaue223e3b2017-11-18 15:39:10 +0100285
286 if (!sess->fe->fe_req_ana) {
287 channel_auto_connect(&s->req); /* don't wait to establish connection */
288 channel_auto_close(&s->req); /* let the producer forward close requests */
289 }
Willy Tarreauc8815ef2015-04-05 18:15:59 +0200290
291 s->req.rto = sess->fe->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100292 s->req.wto = TICK_ETERNITY;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100293 s->req.rex = TICK_ETERNITY;
294 s->req.wex = TICK_ETERNITY;
295 s->req.analyse_exp = TICK_ETERNITY;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200296
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100297 channel_init(&s->res);
Willy Tarreauef573c02014-11-28 14:17:09 +0100298 s->res.flags |= CF_ISRESP;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100299 s->res.analysers = 0;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200300
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200301 if (sess->fe->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100302 s->req.flags |= CF_NEVER_WAIT;
303 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200304 }
305
Willy Tarreauc8815ef2015-04-05 18:15:59 +0200306 s->res.wto = sess->fe->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100307 s->res.rto = TICK_ETERNITY;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100308 s->res.rex = TICK_ETERNITY;
309 s->res.wex = TICK_ETERNITY;
310 s->res.analyse_exp = TICK_ETERNITY;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200311
Willy Tarreaueee5b512015-04-03 23:46:31 +0200312 s->txn = NULL;
Thierry FOURNIER2c8b54e2016-12-17 12:45:32 +0100313 s->hlua = NULL;
Thierry FOURNIER65f34c62015-02-16 20:11:43 +0100314
Frédéric Lécaillebed883a2019-04-23 17:26:33 +0200315 s->dns_ctx.dns_requester = NULL;
316 s->dns_ctx.hostname_dn = NULL;
317 s->dns_ctx.hostname_dn_len = 0;
318 s->dns_ctx.parent = NULL;
319
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100320 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200321 LIST_ADDQ(&streams, &s->list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100322 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200323
Christopher Faulet92d36382015-11-05 13:35:03 +0100324 if (flt_stream_init(s) < 0 || flt_stream_start(s) < 0)
Christopher Fauletd7c91962015-04-30 11:48:27 +0200325 goto out_fail_accept;
326
Olivier Houcharda254a372019-04-05 15:30:12 +0200327 s->si[1].l7_buffer = BUF_NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200328 /* finish initialization of the accepted file descriptor */
Olivier Houchard53216e72018-10-10 15:46:36 +0200329 if (appctx)
Willy Tarreau0cd3bd62018-11-06 18:46:37 +0100330 si_want_get(&s->si[0]);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200331
Willy Tarreaufb9f5842015-04-05 18:19:23 +0200332 if (sess->fe->accept && sess->fe->accept(s) < 0)
Willy Tarreauc5a7ff42015-04-05 11:52:08 +0200333 goto out_fail_accept;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200334
335 /* it is important not to call the wakeup function directly but to
336 * pass through task_wakeup(), because this one knows how to apply
Emeric Brun5f77fef2017-05-29 15:26:51 +0200337 * priorities to tasks. Using multi thread we must be sure that
338 * stream is fully initialized before calling task_wakeup. So
339 * the caller must handle the task_wakeup
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200340 */
Willy Tarreau02d86382015-04-05 12:00:52 +0200341 return s;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200342
343 /* Error unrolling */
Willy Tarreauc5a7ff42015-04-05 11:52:08 +0200344 out_fail_accept:
Christopher Faulet92d36382015-11-05 13:35:03 +0100345 flt_stream_release(s, 0);
Olivier Houchard3f795f72019-04-17 22:51:06 +0200346 task_destroy(t);
Olivier Houchardfa8aa862018-10-10 18:25:41 +0200347 tasklet_free(s->si[1].wait_event.task);
Willy Tarreaue5f229e2018-10-15 11:08:55 +0200348 LIST_DEL(&s->list);
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200349out_fail_alloc_si1:
Olivier Houchardfa8aa862018-10-10 18:25:41 +0200350 tasklet_free(s->si[0].wait_event.task);
Willy Tarreau87787ac2017-08-28 16:22:54 +0200351 out_fail_alloc:
Willy Tarreaubafbe012017-11-24 17:34:44 +0100352 pool_free(pool_head_stream, s);
Willy Tarreau02d86382015-04-05 12:00:52 +0200353 return NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200354}
355
Willy Tarreaubaaee002006-06-26 02:48:02 +0200356/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200357 * frees the context associated to a stream. It must have been removed first.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200358 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200359static void stream_free(struct stream *s)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200360{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200361 struct session *sess = strm_sess(s);
362 struct proxy *fe = sess->fe;
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100363 struct bref *bref, *back;
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200364 struct conn_stream *cli_cs = objt_cs(s->si[0].end);
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100365 int must_free_sess;
Willy Tarreaua4cda672010-06-06 18:28:49 +0200366 int i;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100367
Willy Tarreau0ad46fa2019-05-17 14:20:05 +0200368 /* detach the stream from its own task before even releasing it so
369 * that walking over a task list never exhibits a dying stream.
370 */
371 s->task->context = NULL;
372 __ha_barrier_store();
373
Willy Tarreaud0ad4a82018-07-25 11:13:53 +0200374 pendconn_free(s);
Willy Tarreau922a8062008-12-04 09:33:58 +0100375
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100376 if (objt_server(s->target)) { /* there may be requests left pending in queue */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200377 if (s->flags & SF_CURR_SESS) {
378 s->flags &= ~SF_CURR_SESS;
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100379 _HA_ATOMIC_SUB(&__objt_server(s->target)->cur_sess, 1);
Willy Tarreau1e62de62008-11-11 20:20:02 +0100380 }
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100381 if (may_dequeue_tasks(objt_server(s->target), s->be))
382 process_srv_queue(objt_server(s->target));
Willy Tarreau1e62de62008-11-11 20:20:02 +0100383 }
Willy Tarreau922a8062008-12-04 09:33:58 +0100384
Willy Tarreau7c669d72008-06-20 15:04:11 +0200385 if (unlikely(s->srv_conn)) {
Willy Tarreau87b09662015-04-03 00:22:06 +0200386 /* the stream still has a reserved slot on a server, but
Willy Tarreau7c669d72008-06-20 15:04:11 +0200387 * it should normally be only the same as the one above,
388 * so this should not happen in fact.
389 */
390 sess_change_server(s, NULL);
391 }
392
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100393 if (s->req.pipe)
394 put_pipe(s->req.pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100395
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100396 if (s->res.pipe)
397 put_pipe(s->res.pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100398
Willy Tarreaubf883e02014-11-25 21:10:35 +0100399 /* We may still be present in the buffer wait queue */
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100400 if (!LIST_ISEMPTY(&s->buffer_wait.list)) {
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100401 HA_SPIN_LOCK(BUF_WQ_LOCK, &buffer_wq_lock);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100402 LIST_DEL(&s->buffer_wait.list);
403 LIST_INIT(&s->buffer_wait.list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100404 HA_SPIN_UNLOCK(BUF_WQ_LOCK, &buffer_wq_lock);
Willy Tarreaubf883e02014-11-25 21:10:35 +0100405 }
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200406 if (s->req.buf.size || s->res.buf.size) {
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100407 b_drop(&s->req.buf);
408 b_drop(&s->res.buf);
Olivier Houchard673867c2018-05-25 16:58:52 +0200409 offer_buffers(NULL, tasks_run_queue);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100410 }
Willy Tarreau9b28e032012-10-12 23:49:43 +0200411
Olivier Houchard32211a12019-02-01 18:10:46 +0100412 pool_free(pool_head_uniqueid, s->unique_id);
Willy Tarreau09c4bab2019-02-10 18:49:37 +0100413 s->unique_id = NULL;
Olivier Houchard32211a12019-02-01 18:10:46 +0100414
Thierry FOURNIER2c8b54e2016-12-17 12:45:32 +0100415 hlua_ctx_destroy(s->hlua);
416 s->hlua = NULL;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200417 if (s->txn)
418 http_end_txn(s);
Willy Tarreau46023632010-01-07 22:51:47 +0100419
Willy Tarreau1e954912012-10-12 17:50:05 +0200420 /* ensure the client-side transport layer is destroyed */
Willy Tarreau32560732017-10-08 11:33:44 +0200421 if (cli_cs)
422 cs_close(cli_cs);
Willy Tarreau1e954912012-10-12 17:50:05 +0200423
Willy Tarreaua4cda672010-06-06 18:28:49 +0200424 for (i = 0; i < s->store_count; i++) {
425 if (!s->store[i].ts)
426 continue;
427 stksess_free(s->store[i].table, s->store[i].ts);
428 s->store[i].ts = NULL;
429 }
430
Willy Tarreaueee5b512015-04-03 23:46:31 +0200431 if (s->txn) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100432 pool_free(pool_head_hdr_idx, s->txn->hdr_idx.v);
433 pool_free(pool_head_http_txn, s->txn);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200434 s->txn = NULL;
435 }
436
Baptiste Assmann333939c2019-01-21 08:34:50 +0100437 if (s->dns_ctx.dns_requester) {
438 free(s->dns_ctx.hostname_dn); s->dns_ctx.hostname_dn = NULL;
439 s->dns_ctx.hostname_dn_len = 0;
440 dns_unlink_resolution(s->dns_ctx.dns_requester);
441
442 pool_free(dns_requester_pool, s->dns_ctx.dns_requester);
443 s->dns_ctx.dns_requester = NULL;
444 }
445
Christopher Fauletd7c91962015-04-30 11:48:27 +0200446 flt_stream_stop(s);
Christopher Faulet92d36382015-11-05 13:35:03 +0100447 flt_stream_release(s, 0);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200448
Willy Tarreau92fb9832007-10-16 17:34:28 +0200449 if (fe) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100450 pool_free(fe->rsp_cap_pool, s->res_cap);
451 pool_free(fe->req_cap_pool, s->req_cap);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200452 }
Willy Tarreau0937bc42009-12-22 15:03:09 +0100453
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200454 /* Cleanup all variable contexts. */
Willy Tarreaucda7f3f2018-10-28 13:44:36 +0100455 if (!LIST_ISEMPTY(&s->vars_txn.head))
456 vars_prune(&s->vars_txn, s->sess, s);
457 if (!LIST_ISEMPTY(&s->vars_reqres.head))
458 vars_prune(&s->vars_reqres, s->sess, s);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200459
Willy Tarreau87b09662015-04-03 00:22:06 +0200460 stream_store_counters(s);
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +0200461
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100462 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100463 list_for_each_entry_safe(bref, back, &s->back_refs, users) {
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100464 /* we have to unlink all watchers. We must not relink them if
Willy Tarreau87b09662015-04-03 00:22:06 +0200465 * this stream was the last one in the list.
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100466 */
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100467 LIST_DEL(&bref->users);
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100468 LIST_INIT(&bref->users);
Willy Tarreau87b09662015-04-03 00:22:06 +0200469 if (s->list.n != &streams)
470 LIST_ADDQ(&LIST_ELEM(s->list.n, struct stream *, list)->back_refs, &bref->users);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100471 bref->ref = s->list.n;
472 }
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100473 LIST_DEL(&s->list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100474 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200475
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100476 /* applets do not release session yet */
477 must_free_sess = objt_appctx(sess->origin) && sess->origin == s->si[0].end;
478
Olivier Houchard4fdec7a2018-10-11 17:09:14 +0200479
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200480 si_release_endpoint(&s->si[1]);
481 si_release_endpoint(&s->si[0]);
Willy Tarreaufeb76402015-04-03 14:10:06 +0200482
Olivier Houchardd7bd3e32018-10-18 16:22:02 +0200483 tasklet_free(s->si[0].wait_event.task);
484 tasklet_free(s->si[1].wait_event.task);
485
Olivier Houcharda254a372019-04-05 15:30:12 +0200486 b_free(&s->si[1].l7_buffer);
Olivier Houchard25607af2018-11-23 14:50:47 +0100487 if (must_free_sess) {
488 sess->origin = NULL;
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100489 session_free(sess);
Olivier Houchard25607af2018-11-23 14:50:47 +0100490 }
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100491
Willy Tarreaubafbe012017-11-24 17:34:44 +0100492 pool_free(pool_head_stream, s);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200493
494 /* We may want to free the maximum amount of pools if the proxy is stopping */
Willy Tarreau92fb9832007-10-16 17:34:28 +0200495 if (fe && unlikely(fe->state == PR_STSTOPPED)) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100496 pool_flush(pool_head_buffer);
497 pool_flush(pool_head_http_txn);
498 pool_flush(pool_head_hdr_idx);
499 pool_flush(pool_head_requri);
500 pool_flush(pool_head_capture);
501 pool_flush(pool_head_stream);
502 pool_flush(pool_head_session);
503 pool_flush(pool_head_connection);
504 pool_flush(pool_head_pendconn);
505 pool_flush(fe->req_cap_pool);
506 pool_flush(fe->rsp_cap_pool);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200507 }
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200508}
509
Willy Tarreau656859d2014-11-25 19:46:36 +0100510
Willy Tarreau87b09662015-04-03 00:22:06 +0200511/* Allocates a work buffer for stream <s>. It is meant to be called inside
512 * process_stream(). It will only allocate the side needed for the function
Willy Tarreaubc39a5d2015-04-20 15:52:18 +0200513 * to work fine, which is the response buffer so that an error message may be
514 * built and returned. Response buffers may be allocated from the reserve, this
515 * is critical to ensure that a response may always flow and will never block a
516 * server from releasing a connection. Returns 0 in case of failure, non-zero
517 * otherwise.
Willy Tarreau656859d2014-11-25 19:46:36 +0100518 */
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100519static int stream_alloc_work_buffer(struct stream *s)
Willy Tarreau656859d2014-11-25 19:46:36 +0100520{
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100521 if (!LIST_ISEMPTY(&s->buffer_wait.list)) {
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100522 HA_SPIN_LOCK(BUF_WQ_LOCK, &buffer_wq_lock);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100523 LIST_DEL(&s->buffer_wait.list);
524 LIST_INIT(&s->buffer_wait.list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100525 HA_SPIN_UNLOCK(BUF_WQ_LOCK, &buffer_wq_lock);
Willy Tarreaubf883e02014-11-25 21:10:35 +0100526 }
Willy Tarreau656859d2014-11-25 19:46:36 +0100527
Willy Tarreaubc39a5d2015-04-20 15:52:18 +0200528 if (b_alloc_margin(&s->res.buf, 0))
Willy Tarreau656859d2014-11-25 19:46:36 +0100529 return 1;
530
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100531 HA_SPIN_LOCK(BUF_WQ_LOCK, &buffer_wq_lock);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100532 LIST_ADDQ(&buffer_wq, &s->buffer_wait.list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100533 HA_SPIN_UNLOCK(BUF_WQ_LOCK, &buffer_wq_lock);
Willy Tarreau656859d2014-11-25 19:46:36 +0100534 return 0;
535}
536
537/* releases unused buffers after processing. Typically used at the end of the
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100538 * update() functions. It will try to wake up as many tasks/applets as the
539 * number of buffers that it releases. In practice, most often streams are
540 * blocked on a single buffer, so it makes sense to try to wake two up when two
541 * buffers are released at once.
Willy Tarreau656859d2014-11-25 19:46:36 +0100542 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200543void stream_release_buffers(struct stream *s)
Willy Tarreau656859d2014-11-25 19:46:36 +0100544{
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100545 int offer = 0;
Willy Tarreau656859d2014-11-25 19:46:36 +0100546
Willy Tarreau0c7ed5d2018-07-10 09:53:31 +0200547 if (c_size(&s->req) && c_empty(&s->req)) {
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100548 offer = 1;
549 b_free(&s->req.buf);
550 }
Willy Tarreau0c7ed5d2018-07-10 09:53:31 +0200551 if (c_size(&s->res) && c_empty(&s->res)) {
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100552 offer = 1;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100553 b_free(&s->res.buf);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100554 }
Willy Tarreau656859d2014-11-25 19:46:36 +0100555
Willy Tarreaubf883e02014-11-25 21:10:35 +0100556 /* if we're certain to have at least 1 buffer available, and there is
557 * someone waiting, we can wake up a waiter and offer them.
558 */
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100559 if (offer)
Olivier Houchard673867c2018-05-25 16:58:52 +0200560 offer_buffers(s, tasks_run_queue);
Willy Tarreau656859d2014-11-25 19:46:36 +0100561}
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200562
Willy Tarreau87b09662015-04-03 00:22:06 +0200563void stream_process_counters(struct stream *s)
Willy Tarreau30e71012007-11-26 20:15:35 +0100564{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200565 struct session *sess = s->sess;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100566 unsigned long long bytes;
Emeric Brun57056f02015-06-15 18:29:57 +0200567 void *ptr1,*ptr2;
Emeric Brun819fc6f2017-06-13 19:37:32 +0200568 struct stksess *ts;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100569 int i;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100570
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100571 bytes = s->req.total - s->logs.bytes_in;
572 s->logs.bytes_in = s->req.total;
573 if (bytes) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100574 _HA_ATOMIC_ADD(&sess->fe->fe_counters.bytes_in, bytes);
575 _HA_ATOMIC_ADD(&s->be->be_counters.bytes_in, bytes);
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100576
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100577 if (objt_server(s->target))
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100578 _HA_ATOMIC_ADD(&objt_server(s->target)->counters.bytes_in, bytes);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200579
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200580 if (sess->listener && sess->listener->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100581 _HA_ATOMIC_ADD(&sess->listener->counters->bytes_in, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200582
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100583 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200584 struct stkctr *stkctr = &s->stkctr[i];
585
Emeric Brun819fc6f2017-06-13 19:37:32 +0200586 ts = stkctr_entry(stkctr);
587 if (!ts) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200588 stkctr = &sess->stkctr[i];
Emeric Brun819fc6f2017-06-13 19:37:32 +0200589 ts = stkctr_entry(stkctr);
590 if (!ts)
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200591 continue;
592 }
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200593
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100594 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun819fc6f2017-06-13 19:37:32 +0200595 ptr1 = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_BYTES_IN_CNT);
Emeric Brun57056f02015-06-15 18:29:57 +0200596 if (ptr1)
597 stktable_data_cast(ptr1, bytes_in_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200598
Emeric Brun819fc6f2017-06-13 19:37:32 +0200599 ptr2 = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_BYTES_IN_RATE);
Emeric Brun57056f02015-06-15 18:29:57 +0200600 if (ptr2)
601 update_freq_ctr_period(&stktable_data_cast(ptr2, bytes_in_rate),
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200602 stkctr->table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u, bytes);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100603 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun57056f02015-06-15 18:29:57 +0200604
605 /* If data was modified, we need to touch to re-schedule sync */
606 if (ptr1 || ptr2)
Emeric Brun819fc6f2017-06-13 19:37:32 +0200607 stktable_touch_local(stkctr->table, ts, 0);
Willy Tarreau30e71012007-11-26 20:15:35 +0100608 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100609 }
610
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100611 bytes = s->res.total - s->logs.bytes_out;
612 s->logs.bytes_out = s->res.total;
613 if (bytes) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100614 _HA_ATOMIC_ADD(&sess->fe->fe_counters.bytes_out, bytes);
615 _HA_ATOMIC_ADD(&s->be->be_counters.bytes_out, bytes);
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100616
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100617 if (objt_server(s->target))
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100618 _HA_ATOMIC_ADD(&objt_server(s->target)->counters.bytes_out, bytes);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200619
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200620 if (sess->listener && sess->listener->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100621 _HA_ATOMIC_ADD(&sess->listener->counters->bytes_out, bytes);
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200622
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100623 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200624 struct stkctr *stkctr = &s->stkctr[i];
625
Emeric Brun819fc6f2017-06-13 19:37:32 +0200626 ts = stkctr_entry(stkctr);
627 if (!ts) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200628 stkctr = &sess->stkctr[i];
Emeric Brun819fc6f2017-06-13 19:37:32 +0200629 ts = stkctr_entry(stkctr);
630 if (!ts)
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200631 continue;
632 }
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200633
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100634 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun819fc6f2017-06-13 19:37:32 +0200635 ptr1 = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_BYTES_OUT_CNT);
Emeric Brun57056f02015-06-15 18:29:57 +0200636 if (ptr1)
637 stktable_data_cast(ptr1, bytes_out_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200638
Emeric Brun819fc6f2017-06-13 19:37:32 +0200639 ptr2 = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_BYTES_OUT_RATE);
Emeric Brun57056f02015-06-15 18:29:57 +0200640 if (ptr2)
641 update_freq_ctr_period(&stktable_data_cast(ptr2, bytes_out_rate),
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200642 stkctr->table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u, bytes);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100643 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun57056f02015-06-15 18:29:57 +0200644
645 /* If data was modified, we need to touch to re-schedule sync */
646 if (ptr1 || ptr2)
Emeric Brun819fc6f2017-06-13 19:37:32 +0200647 stktable_touch_local(stkctr->table, stkctr_entry(stkctr), 0);
Willy Tarreau30e71012007-11-26 20:15:35 +0100648 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100649 }
650}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200651
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100652/* This function is called with (si->state == SI_ST_CON) meaning that a
653 * connection was attempted and that the file descriptor is already allocated.
654 * We must check for establishment, error and abort. Possible output states
655 * are SI_ST_EST (established), SI_ST_CER (error), SI_ST_DIS (abort), and
656 * SI_ST_CON (no change). The function returns 0 if it switches to SI_ST_CER,
Willy Tarreau87b09662015-04-03 00:22:06 +0200657 * otherwise 1. This only works with connection-based streams.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100658 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200659static int sess_update_st_con_tcp(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100660{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100661 struct stream_interface *si = &s->si[1];
662 struct channel *req = &s->req;
663 struct channel *rep = &s->res;
Olivier Houchard14547b22018-11-29 18:01:46 +0100664 struct conn_stream *srv_cs = objt_cs(si->end);
Willy Tarreaubf66bd12019-01-23 15:15:09 +0100665 struct connection *conn = srv_cs ? srv_cs->conn : objt_conn(si->end);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100666
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100667 /* If we got an error, or if nothing happened and the connection timed
668 * out, we must give up. The CER state handler will take care of retry
669 * attempts and error reports.
670 */
671 if (unlikely(si->flags & (SI_FL_EXP|SI_FL_ERR))) {
Bin Wang95fad5b2017-09-15 14:56:40 +0800672 if (unlikely(req->flags & CF_WROTE_DATA)) {
Willy Tarreaue3224e82012-10-29 22:41:31 +0100673 /* Some data were sent past the connection establishment,
674 * so we need to pretend we're established to log correctly
675 * and let later states handle the failure.
676 */
Willy Tarreaue3224e82012-10-29 22:41:31 +0100677 si->state = SI_ST_EST;
678 si->err_type = SI_ET_DATA_ERR;
Olivier Houchardf4bda992019-05-03 22:21:24 +0200679 /* Don't add CF_WRITE_ERROR if we're here because
680 * early data were rejected by the server, or
681 * http_wait_for_response() will never be called
682 * to send a 425.
683 */
684 if (conn->err_code != CO_ER_SSL_EARLY_FAILED)
685 req->flags |= CF_WRITE_ERROR;
Willy Tarreau28e581b2019-01-31 18:58:06 +0100686 rep->flags |= CF_READ_ERROR;
Willy Tarreaue3224e82012-10-29 22:41:31 +0100687 return 1;
688 }
Willy Tarreau127334e2009-03-28 10:47:26 +0100689 si->exp = TICK_ETERNITY;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100690 si->state = SI_ST_CER;
Willy Tarreau0ede5a32012-12-08 08:44:02 +0100691
Willy Tarreaubf66bd12019-01-23 15:15:09 +0100692 if (!(s->flags & SF_SRV_REUSED) && conn) {
Olivier Houchard14547b22018-11-29 18:01:46 +0100693 conn_stop_tracking(conn);
694 conn_full_close(conn);
Olivier Houchard14547b22018-11-29 18:01:46 +0100695 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100696
697 if (si->err_type)
698 return 0;
699
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100700 if (si->flags & SI_FL_ERR)
701 si->err_type = SI_ET_CONN_ERR;
702 else
703 si->err_type = SI_ET_CONN_TO;
704 return 0;
705 }
706
707 /* OK, maybe we want to abort */
Bin Wang95fad5b2017-09-15 14:56:40 +0800708 if (!(req->flags & CF_WROTE_DATA) &&
Willy Tarreaua7a7ebc2012-12-30 00:50:35 +0100709 unlikely((rep->flags & CF_SHUTW) ||
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200710 ((req->flags & CF_SHUTW_NOW) && /* FIXME: this should not prevent a connection from establishing */
Willy Tarreauede3d882018-10-24 17:17:56 +0200711 ((!(req->flags & CF_WRITE_ACTIVITY) && channel_is_empty(req)) ||
Christopher Faulet769d0e92019-03-22 14:23:18 +0100712 (s->be->options & PR_O_ABRT_CLOSE))))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100713 /* give up */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200714 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100715 si->err_type |= SI_ET_CONN_ABRT;
Willy Tarreau84455332009-03-15 22:34:05 +0100716 if (s->srv_error)
717 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100718 return 1;
719 }
720
Christopher Faulet7a3367c2019-05-09 11:46:52 +0200721 /* If the request channel is waiting for the connect(), we mark the read
722 * side as attached on the response channel and we wake up it once. So
723 * it will have a chance to forward data now.
724 */
725 if (req->flags & CF_WAKE_CONNECT) {
726 rep->flags |= CF_READ_ATTACHED;
727 req->flags |= CF_WAKE_ONCE;
728 req->flags &= ~CF_WAKE_CONNECT;
729 }
730
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100731 /* we need to wait a bit more if there was no activity either */
Christopher Faulet3b88b8d2018-10-26 17:36:03 +0200732 if (!(req->flags & CF_WRITE_ACTIVITY))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100733 return 1;
734
735 /* OK, this means that a connection succeeded. The caller will be
736 * responsible for handling the transition from CON to EST.
737 */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100738 si->state = SI_ST_EST;
739 si->err_type = SI_ET_NONE;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100740 return 1;
741}
742
743/* This function is called with (si->state == SI_ST_CER) meaning that a
744 * previous connection attempt has failed and that the file descriptor
745 * has already been released. Possible causes include asynchronous error
746 * notification and time out. Possible output states are SI_ST_CLO when
747 * retries are exhausted, SI_ST_TAR when a delay is wanted before a new
748 * connection attempt, SI_ST_ASS when it's wise to retry on the same server,
749 * and SI_ST_REQ when an immediate redispatch is wanted. The buffers are
750 * marked as in error state. It returns 0.
751 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200752static int sess_update_st_cer(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100753{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100754 struct stream_interface *si = &s->si[1];
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200755 struct conn_stream *cs = objt_cs(si->end);
756 struct connection *conn = cs_conn(cs);
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100757
Willy Tarreau87b09662015-04-03 00:22:06 +0200758 /* we probably have to release last stream from the server */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100759 if (objt_server(s->target)) {
760 health_adjust(objt_server(s->target), HANA_STATUS_L4_ERR);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100761
Willy Tarreaue7dff022015-04-03 01:14:29 +0200762 if (s->flags & SF_CURR_SESS) {
763 s->flags &= ~SF_CURR_SESS;
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100764 _HA_ATOMIC_SUB(&__objt_server(s->target)->cur_sess, 1);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100765 }
Willy Tarreau46d5b082017-07-26 20:13:37 +0200766
767 if ((si->flags & SI_FL_ERR) &&
768 conn && conn->err_code == CO_ER_SSL_MISMATCH_SNI) {
769 /* We tried to connect to a server which is configured
770 * with "verify required" and which doesn't have the
771 * "verifyhost" directive. The server presented a wrong
772 * certificate (a certificate for an unexpected name),
773 * which implies that we have used SNI in the handshake,
774 * and that the server doesn't have the associated cert
775 * and presented a default one.
776 *
777 * This is a serious enough issue not to retry. It's
778 * especially important because this wrong name might
779 * either be the result of a configuration error, and
780 * retrying will only hammer the server, or is caused
781 * by the use of a wrong SNI value, most likely
782 * provided by the client and we don't want to let the
783 * client provoke retries.
784 */
785 si->conn_retries = 0;
786 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100787 }
788
789 /* ensure that we have enough retries left */
Willy Tarreauee28de02010-06-01 09:51:00 +0200790 si->conn_retries--;
Olivier Houcharda254a372019-04-05 15:30:12 +0200791 if (si->conn_retries < 0 || !(s->be->retry_type & PR_RE_CONN_FAILED)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100792 if (!si->err_type) {
793 si->err_type = SI_ET_CONN_ERR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100794 }
795
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100796 if (objt_server(s->target))
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100797 _HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_conns, 1);
798 _HA_ATOMIC_ADD(&s->be->be_counters.failed_conns, 1);
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100799 sess_change_server(s, NULL);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100800 if (may_dequeue_tasks(objt_server(s->target), s->be))
801 process_srv_queue(objt_server(s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100802
803 /* shutw is enough so stop a connecting socket */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200804 si_shutw(si);
Willy Tarreau103197d2014-11-28 15:26:12 +0100805 s->req.flags |= CF_WRITE_ERROR;
806 s->res.flags |= CF_READ_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100807
808 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100809 if (s->srv_error)
810 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100811 return 0;
812 }
813
814 /* If the "redispatch" option is set on the backend, we are allowed to
Joseph Lynch726ab712015-05-11 23:25:34 -0700815 * retry on another server. By default this redispatch occurs on the
816 * last retry, but if configured we allow redispatches to occur on
817 * configurable intervals, e.g. on every retry. In order to achieve this,
Willy Tarreau87b09662015-04-03 00:22:06 +0200818 * we must mark the stream unassigned, and eventually clear the DIRECT
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100819 * bit to ignore any persistence cookie. We won't count a retry nor a
820 * redispatch yet, because this will depend on what server is selected.
Willy Tarreau33a14e52014-06-13 17:49:40 +0200821 * If the connection is not persistent, the balancing algorithm is not
822 * determinist (round robin) and there is more than one active server,
823 * we accept to perform an immediate redispatch without waiting since
824 * we don't care about this particular server.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100825 */
Willy Tarreau33a14e52014-06-13 17:49:40 +0200826 if (objt_server(s->target) &&
Joseph Lynch726ab712015-05-11 23:25:34 -0700827 (s->be->options & PR_O_REDISP) && !(s->flags & SF_FORCE_PRST) &&
Emeric Brun52a91d32017-08-31 14:41:55 +0200828 ((__objt_server(s->target)->cur_state < SRV_ST_RUNNING) ||
Willy Tarreau49008c12016-01-13 07:58:44 +0100829 (((s->be->redispatch_after > 0) &&
Joseph Lynch726ab712015-05-11 23:25:34 -0700830 ((s->be->conn_retries - si->conn_retries) %
831 s->be->redispatch_after == 0)) ||
832 ((s->be->redispatch_after < 0) &&
833 ((s->be->conn_retries - si->conn_retries) %
834 (s->be->conn_retries + 1 + s->be->redispatch_after) == 0))) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200835 (!(s->flags & SF_DIRECT) && s->be->srv_act > 1 &&
Joseph Lynch726ab712015-05-11 23:25:34 -0700836 ((s->be->lbprm.algo & BE_LB_KIND) == BE_LB_KIND_RR)))) {
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100837 sess_change_server(s, NULL);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100838 if (may_dequeue_tasks(objt_server(s->target), s->be))
839 process_srv_queue(objt_server(s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100840
Willy Tarreaue7dff022015-04-03 01:14:29 +0200841 s->flags &= ~(SF_DIRECT | SF_ASSIGNED | SF_ADDR_SET);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100842 si->state = SI_ST_REQ;
843 } else {
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100844 if (objt_server(s->target))
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100845 _HA_ATOMIC_ADD(&__objt_server(s->target)->counters.retries, 1);
846 _HA_ATOMIC_ADD(&s->be->be_counters.retries, 1);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100847 si->state = SI_ST_ASS;
848 }
849
850 if (si->flags & SI_FL_ERR) {
851 /* The error was an asynchronous connection error, and we will
852 * likely have to retry connecting to the same server, most
853 * likely leading to the same result. To avoid this, we wait
Willy Tarreauf7a259d2019-01-23 16:29:53 +0100854 * MIN(one second, connect timeout) before retrying. We don't
855 * do it when the failure happened on a reused connection
856 * though.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100857 */
858
Willy Tarreaub0290662014-06-13 17:04:44 +0200859 int delay = 1000;
860
861 if (s->be->timeout.connect && s->be->timeout.connect < delay)
862 delay = s->be->timeout.connect;
863
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100864 if (!si->err_type)
865 si->err_type = SI_ET_CONN_ERR;
866
Willy Tarreaudb6d0122014-06-13 17:40:15 +0200867 /* only wait when we're retrying on the same server */
Willy Tarreauf7a259d2019-01-23 16:29:53 +0100868 if ((si->state == SI_ST_ASS ||
869 (s->be->lbprm.algo & BE_LB_KIND) != BE_LB_KIND_RR ||
870 (s->be->srv_act <= 1)) && !(s->flags & SF_SRV_REUSED)) {
Willy Tarreaudb6d0122014-06-13 17:40:15 +0200871 si->state = SI_ST_TAR;
872 si->exp = tick_add(now_ms, MS_TO_TICKS(delay));
873 }
Olivier Houchard39cc0202019-04-09 19:12:51 +0200874 si->flags &= ~SI_FL_ERR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100875 return 0;
876 }
877 return 0;
878}
879
880/*
881 * This function handles the transition between the SI_ST_CON state and the
Willy Tarreau85e7d002010-05-31 11:57:51 +0200882 * SI_ST_EST state. It must only be called after switching from SI_ST_CON (or
Willy Tarreau26d8c592012-05-07 18:12:14 +0200883 * SI_ST_INI) to SI_ST_EST, but only when a ->proto is defined.
Olivier Houchardaacc4052019-05-21 17:43:50 +0200884 * Note that it will switch the interface to SI_ST_DIS if we already have
885 * the CF_SHUTR flag, it means we were able to forward the request, and
886 * receive the response, before process_stream() had the opportunity to
887 * make the switch from SI_ST_CON to SI_ST_EST. When that happens, we want
888 * to go through sess_establish() anyway, to make sure the analysers run.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100889 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200890static void sess_establish(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100891{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100892 struct stream_interface *si = &s->si[1];
893 struct channel *req = &s->req;
894 struct channel *rep = &s->res;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100895
Willy Tarreau0e37f1c2013-12-31 23:06:46 +0100896 /* First, centralize the timers information */
897 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
898 si->exp = TICK_ETERNITY;
899
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100900 if (objt_server(s->target))
901 health_adjust(objt_server(s->target), HANA_STATUS_L4_OK);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100902
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100903 if (s->be->mode == PR_MODE_TCP) { /* let's allow immediate data connection in this case */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100904 /* if the user wants to log as soon as possible, without counting
905 * bytes from the server, then this is the right moment. */
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200906 if (!LIST_ISEMPTY(&strm_fe(s)->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau66425e32018-07-25 06:55:12 +0200907 /* note: no pend_pos here, session is established */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100908 s->logs.t_close = s->logs.t_connect; /* to get a valid end date */
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100909 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100910 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100911 }
912 else {
Willy Tarreaud81ca042013-12-31 22:33:13 +0100913 rep->flags |= CF_READ_DONTWAIT; /* a single read is enough to get response headers */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100914 }
915
Willy Tarreau0007d0a2018-12-11 18:01:38 +0100916 rep->analysers |= strm_fe(s)->fe_rsp_ana | s->be->be_rsp_ana;
Christopher Faulet309c6412015-12-02 09:57:32 +0100917
Willy Tarreau0007d0a2018-12-11 18:01:38 +0100918 /* Be sure to filter response headers if the backend is an HTTP proxy
919 * and if there are filters attached to the stream. */
920 if (s->be->mode == PR_MODE_HTTP && HAS_FILTERS(s))
921 rep->analysers |= AN_RES_FLT_HTTP_HDRS;
Christopher Faulet309c6412015-12-02 09:57:32 +0100922
Willy Tarreau8bb2ffb2018-11-14 17:54:13 +0100923 si_rx_endp_more(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200924 rep->flags |= CF_READ_ATTACHED; /* producer is now attached */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200925 if (objt_cs(si->end)) {
Willy Tarreaud04e8582010-05-31 12:31:35 +0200926 /* real connections have timeouts */
927 req->wto = s->be->timeout.server;
928 rep->rto = s->be->timeout.server;
Olivier Houchard47e9a1a2018-11-07 17:55:19 +0100929 /* The connection is now established, try to read data from the
930 * underlying layer, and subscribe to recv events. We use a
931 * delayed recv here to give a chance to the data to flow back
932 * by the time we process other tasks.
933 */
934 si_chk_rcv(si);
Willy Tarreaud04e8582010-05-31 12:31:35 +0200935 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100936 req->wex = TICK_ETERNITY;
Olivier Houchardaacc4052019-05-21 17:43:50 +0200937 /* If we managed to get the whole response, switch to SI_ST_DIS now. */
938 if (rep->flags & CF_SHUTR)
939 si->state = SI_ST_DIS;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100940}
941
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -0700942/* Check if the connection request is in such a state that it can be aborted. */
943static int check_req_may_abort(struct channel *req, struct stream *s)
944{
945 return ((req->flags & (CF_READ_ERROR)) ||
Willy Tarreaud651ba12018-01-12 10:42:12 +0100946 ((req->flags & (CF_SHUTW_NOW|CF_SHUTW)) && /* empty and client aborted */
Christopher Faulet769d0e92019-03-22 14:23:18 +0100947 (channel_is_empty(req) || (s->be->options & PR_O_ABRT_CLOSE))));
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -0700948}
949
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100950/* Update back stream interface status for input states SI_ST_ASS, SI_ST_QUE,
951 * SI_ST_TAR. Other input states are simply ignored.
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +0100952 * Possible output states are SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ, SI_ST_CON
953 * and SI_ST_EST. Flags must have previously been updated for timeouts and other
954 * conditions.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100955 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200956static void sess_update_stream_int(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100957{
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100958 struct server *srv = objt_server(s->target);
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100959 struct stream_interface *si = &s->si[1];
Willy Tarreau103197d2014-11-28 15:26:12 +0100960 struct channel *req = &s->req;
Willy Tarreau827aee92011-03-10 16:55:02 +0100961
Christopher Faulet45073512018-07-20 10:16:29 +0200962 DPRINTF(stderr,"[%u] %s: sess=%p rq=%p, rp=%p, exp(r,w)=%u,%u rqf=%08x rpf=%08x rqh=%lu rqt=%lu rph=%lu rpt=%lu cs=%d ss=%d\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100963 now_ms, __FUNCTION__,
964 s,
CJ Ess6eac32e2015-05-02 16:35:24 -0400965 req, &s->res,
Willy Tarreau103197d2014-11-28 15:26:12 +0100966 req->rex, s->res.wex,
967 req->flags, s->res.flags,
Christopher Faulet45073512018-07-20 10:16:29 +0200968 ci_data(req), co_data(req), ci_data(&s->res), co_data(&s->res), s->si[0].state, s->si[1].state);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100969
970 if (si->state == SI_ST_ASS) {
971 /* Server assigned to connection request, we have to try to connect now */
972 int conn_err;
973
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -0700974 /* Before we try to initiate the connection, see if the
975 * request may be aborted instead.
976 */
977 if (check_req_may_abort(req, s)) {
978 si->err_type |= SI_ET_CONN_ABRT;
979 goto abort_connection;
980 }
981
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100982 conn_err = connect_server(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100983 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +0100984
Willy Tarreaue7dff022015-04-03 01:14:29 +0200985 if (conn_err == SF_ERR_NONE) {
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +0100986 /* state = SI_ST_CON or SI_ST_EST now */
Willy Tarreau827aee92011-03-10 16:55:02 +0100987 if (srv)
988 srv_inc_sess_ctr(srv);
Bhaskar Maddalaa20cb852014-02-03 16:26:46 -0500989 if (srv)
990 srv_set_sess_last(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100991 return;
992 }
993
994 /* We have received a synchronous error. We might have to
995 * abort, retry immediately or redispatch.
996 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200997 if (conn_err == SF_ERR_INTERNAL) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100998 if (!si->err_type) {
999 si->err_type = SI_ET_CONN_OTHER;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001000 }
1001
Willy Tarreau827aee92011-03-10 16:55:02 +01001002 if (srv)
1003 srv_inc_sess_ctr(srv);
1004 if (srv)
Bhaskar Maddalaa20cb852014-02-03 16:26:46 -05001005 srv_set_sess_last(srv);
1006 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001007 _HA_ATOMIC_ADD(&srv->counters.failed_conns, 1);
1008 _HA_ATOMIC_ADD(&s->be->be_counters.failed_conns, 1);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001009
Willy Tarreau87b09662015-04-03 00:22:06 +02001010 /* release other streams waiting for this server */
Willy Tarreaub89cfca2010-12-29 14:32:28 +01001011 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001012 if (may_dequeue_tasks(srv, s->be))
1013 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001014
1015 /* Failed and not retryable. */
Willy Tarreau73b013b2012-05-21 16:31:45 +02001016 si_shutr(si);
1017 si_shutw(si);
Willy Tarreau103197d2014-11-28 15:26:12 +01001018 req->flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001019
1020 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1021
Willy Tarreau66425e32018-07-25 06:55:12 +02001022 /* we may need to know the position in the queue for logging */
1023 pendconn_cond_unlink(s->pend_pos);
1024
Willy Tarreau87b09662015-04-03 00:22:06 +02001025 /* no stream was ever accounted for this server */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001026 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001027 if (s->srv_error)
1028 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001029 return;
1030 }
1031
1032 /* We are facing a retryable error, but we don't want to run a
1033 * turn-around now, as the problem is likely a source port
1034 * allocation problem, so we want to retry now.
1035 */
1036 si->state = SI_ST_CER;
1037 si->flags &= ~SI_FL_ERR;
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01001038 sess_update_st_cer(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001039 /* now si->state is one of SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ */
1040 return;
1041 }
1042 else if (si->state == SI_ST_QUE) {
1043 /* connection request was queued, check for any update */
Christopher Faulet5cd4bbd2018-03-14 16:18:06 +01001044 if (!pendconn_dequeue(s)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001045 /* The connection is not in the queue anymore. Either
1046 * we have a server connection slot available and we
1047 * go directly to the assigned state, or we need to
1048 * load-balance first and go to the INI state.
1049 */
1050 si->exp = TICK_ETERNITY;
Willy Tarreaue7dff022015-04-03 01:14:29 +02001051 if (unlikely(!(s->flags & SF_ASSIGNED)))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001052 si->state = SI_ST_REQ;
1053 else {
1054 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1055 si->state = SI_ST_ASS;
1056 }
1057 return;
1058 }
1059
1060 /* Connection request still in queue... */
1061 if (si->flags & SI_FL_EXP) {
1062 /* ... and timeout expired */
1063 si->exp = TICK_ETERNITY;
1064 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau66425e32018-07-25 06:55:12 +02001065
1066 /* we may need to know the position in the queue for logging */
1067 pendconn_cond_unlink(s->pend_pos);
1068
Willy Tarreau827aee92011-03-10 16:55:02 +01001069 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001070 _HA_ATOMIC_ADD(&srv->counters.failed_conns, 1);
1071 _HA_ATOMIC_ADD(&s->be->be_counters.failed_conns, 1);
Willy Tarreau73b013b2012-05-21 16:31:45 +02001072 si_shutr(si);
1073 si_shutw(si);
Willy Tarreau103197d2014-11-28 15:26:12 +01001074 req->flags |= CF_WRITE_TIMEOUT;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001075 if (!si->err_type)
1076 si->err_type = SI_ET_QUEUE_TO;
1077 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001078 if (s->srv_error)
1079 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001080 return;
1081 }
1082
1083 /* Connection remains in queue, check if we have to abort it */
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -07001084 if (check_req_may_abort(req, s)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001085 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau66425e32018-07-25 06:55:12 +02001086
1087 /* we may need to know the position in the queue for logging */
1088 pendconn_cond_unlink(s->pend_pos);
1089
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001090 si->err_type |= SI_ET_QUEUE_ABRT;
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -07001091 goto abort_connection;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001092 }
1093
1094 /* Nothing changed */
1095 return;
1096 }
1097 else if (si->state == SI_ST_TAR) {
1098 /* Connection request might be aborted */
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -07001099 if (check_req_may_abort(req, s)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001100 si->err_type |= SI_ET_CONN_ABRT;
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -07001101 goto abort_connection;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001102 }
1103
1104 if (!(si->flags & SI_FL_EXP))
1105 return; /* still in turn-around */
1106
Olivier Houchard86dcad62019-04-09 19:17:41 +02001107 si->flags &= ~SI_FL_EXP;
1108
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001109 si->exp = TICK_ETERNITY;
1110
Willy Tarreau87b09662015-04-03 00:22:06 +02001111 /* we keep trying on the same server as long as the stream is
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001112 * marked "assigned".
1113 * FIXME: Should we force a redispatch attempt when the server is down ?
1114 */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001115 if (s->flags & SF_ASSIGNED)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001116 si->state = SI_ST_ASS;
1117 else
1118 si->state = SI_ST_REQ;
1119 return;
1120 }
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -07001121 return;
1122
1123abort_connection:
1124 /* give up */
1125 si->exp = TICK_ETERNITY;
1126 si_shutr(si);
1127 si_shutw(si);
1128 si->state = SI_ST_CLO;
1129 if (s->srv_error)
1130 s->srv_error(s, si);
1131 return;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001132}
1133
Willy Tarreau87b09662015-04-03 00:22:06 +02001134/* Set correct stream termination flags in case no analyser has done it. It
Simon Hormandec5be42011-06-08 09:19:07 +09001135 * also counts a failed request if the server state has not reached the request
1136 * stage.
1137 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001138static void sess_set_term_flags(struct stream *s)
Simon Hormandec5be42011-06-08 09:19:07 +09001139{
Willy Tarreaue7dff022015-04-03 01:14:29 +02001140 if (!(s->flags & SF_FINST_MASK)) {
Simon Hormandec5be42011-06-08 09:19:07 +09001141 if (s->si[1].state < SI_ST_REQ) {
1142
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001143 _HA_ATOMIC_ADD(&strm_fe(s)->fe_counters.failed_req, 1);
Willy Tarreau2c1068c2015-09-23 12:21:21 +02001144 if (strm_li(s) && strm_li(s)->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001145 _HA_ATOMIC_ADD(&strm_li(s)->counters->failed_req, 1);
Simon Hormandec5be42011-06-08 09:19:07 +09001146
Willy Tarreaue7dff022015-04-03 01:14:29 +02001147 s->flags |= SF_FINST_R;
Simon Hormandec5be42011-06-08 09:19:07 +09001148 }
1149 else if (s->si[1].state == SI_ST_QUE)
Willy Tarreaue7dff022015-04-03 01:14:29 +02001150 s->flags |= SF_FINST_Q;
Simon Hormandec5be42011-06-08 09:19:07 +09001151 else if (s->si[1].state < SI_ST_EST)
Willy Tarreaue7dff022015-04-03 01:14:29 +02001152 s->flags |= SF_FINST_C;
Simon Hormandec5be42011-06-08 09:19:07 +09001153 else if (s->si[1].state == SI_ST_EST || s->si[1].prev_state == SI_ST_EST)
Willy Tarreaue7dff022015-04-03 01:14:29 +02001154 s->flags |= SF_FINST_D;
Simon Hormandec5be42011-06-08 09:19:07 +09001155 else
Willy Tarreaue7dff022015-04-03 01:14:29 +02001156 s->flags |= SF_FINST_L;
Simon Hormandec5be42011-06-08 09:19:07 +09001157 }
1158}
1159
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001160/* This function initiates a server connection request on a stream interface
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001161 * already in SI_ST_REQ state. Upon success, the state goes to SI_ST_ASS for
1162 * a real connection to a server, indicating that a server has been assigned,
1163 * or SI_ST_EST for a successful connection to an applet. It may also return
1164 * SI_ST_QUE, or SI_ST_CLO upon error.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001165 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001166static void sess_prepare_conn_req(struct stream *s)
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001167{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01001168 struct stream_interface *si = &s->si[1];
1169
Christopher Faulet45073512018-07-20 10:16:29 +02001170 DPRINTF(stderr,"[%u] %s: sess=%p rq=%p, rp=%p, exp(r,w)=%u,%u rqf=%08x rpf=%08x rqh=%lu rqt=%lu rph=%lu rpt=%lu cs=%d ss=%d\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001171 now_ms, __FUNCTION__,
1172 s,
CJ Ess6eac32e2015-05-02 16:35:24 -04001173 &s->req, &s->res,
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001174 s->req.rex, s->res.wex,
1175 s->req.flags, s->res.flags,
Christopher Faulet45073512018-07-20 10:16:29 +02001176 ci_data(&s->req), co_data(&s->req), ci_data(&s->res), co_data(&s->res), s->si[0].state, s->si[1].state);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001177
1178 if (si->state != SI_ST_REQ)
1179 return;
1180
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001181 if (unlikely(obj_type(s->target) == OBJ_TYPE_APPLET)) {
1182 /* the applet directly goes to the EST state */
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001183 struct appctx *appctx = objt_appctx(si->end);
1184
1185 if (!appctx || appctx->applet != __objt_applet(s->target))
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001186 appctx = si_register_handler(si, objt_applet(s->target));
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001187
1188 if (!appctx) {
1189 /* No more memory, let's immediately abort. Force the
1190 * error code to ignore the ERR_LOCAL which is not a
1191 * real error.
1192 */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001193 s->flags &= ~(SF_ERR_MASK | SF_FINST_MASK);
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001194
1195 si_shutr(si);
1196 si_shutw(si);
Willy Tarreau103197d2014-11-28 15:26:12 +01001197 s->req.flags |= CF_WRITE_ERROR;
Willy Tarreau6bbb2f62013-12-09 17:14:23 +01001198 si->err_type = SI_ET_CONN_RES;
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001199 si->state = SI_ST_CLO;
1200 if (s->srv_error)
1201 s->srv_error(s, si);
1202 return;
1203 }
1204
Christopher Faulet7a3367c2019-05-09 11:46:52 +02001205 /* For applets, there is no connection establishment, but if the
1206 * request channel is waiting for it, we mark the read side as
1207 * attached on the response channel and we wake up it once. So
1208 * it will have a chance to forward data now.
1209 */
1210 if (s->req.flags & CF_WAKE_CONNECT) {
1211 s->res.flags |= CF_READ_ATTACHED;
1212 s->req.flags |= CF_WAKE_ONCE;
1213 s->req.flags &= ~CF_WAKE_CONNECT;
1214 }
1215
Willy Tarreauee8269e2017-11-23 17:34:29 +01001216 if (tv_iszero(&s->logs.tv_request))
1217 s->logs.tv_request = now;
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001218 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001219 si->state = SI_ST_EST;
1220 si->err_type = SI_ET_NONE;
Willy Tarreaub9a551e2014-04-23 00:35:17 +02001221 be_set_sess_last(s->be);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01001222 /* let sess_establish() finish the job */
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001223 return;
1224 }
1225
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001226 /* Try to assign a server */
1227 if (srv_redispatch_connect(s) != 0) {
1228 /* We did not get a server. Either we queued the
1229 * connection request, or we encountered an error.
1230 */
1231 if (si->state == SI_ST_QUE)
1232 return;
1233
1234 /* we did not get any server, let's check the cause */
Willy Tarreau73b013b2012-05-21 16:31:45 +02001235 si_shutr(si);
1236 si_shutw(si);
Willy Tarreau103197d2014-11-28 15:26:12 +01001237 s->req.flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001238 if (!si->err_type)
1239 si->err_type = SI_ET_CONN_OTHER;
1240 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001241 if (s->srv_error)
1242 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001243 return;
1244 }
1245
1246 /* The server is assigned */
1247 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1248 si->state = SI_ST_ASS;
Willy Tarreaub9a551e2014-04-23 00:35:17 +02001249 be_set_sess_last(s->be);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001250}
1251
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001252/* This function parses the use-service action ruleset. It executes
1253 * the associated ACL and set an applet as a stream or txn final node.
1254 * it returns ACT_RET_ERR if an error occurs, the proxy left in
1255 * consistent state. It returns ACT_RET_STOP in succes case because
1256 * use-service must be a terminal action. Returns ACT_RET_YIELD
1257 * if the initialisation function require more data.
1258 */
1259enum act_return process_use_service(struct act_rule *rule, struct proxy *px,
1260 struct session *sess, struct stream *s, int flags)
1261
1262{
1263 struct appctx *appctx;
1264
1265 /* Initialises the applet if it is required. */
1266 if (flags & ACT_FLAG_FIRST) {
1267 /* Register applet. this function schedules the applet. */
1268 s->target = &rule->applet.obj_type;
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001269 if (unlikely(!si_register_handler(&s->si[1], objt_applet(s->target))))
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001270 return ACT_RET_ERR;
1271
1272 /* Initialise the context. */
1273 appctx = si_appctx(&s->si[1]);
1274 memset(&appctx->ctx, 0, sizeof(appctx->ctx));
1275 appctx->rule = rule;
1276 }
1277 else
1278 appctx = si_appctx(&s->si[1]);
1279
1280 /* Stops the applet sheduling, in case of the init function miss
1281 * some data.
1282 */
Willy Tarreau0cd3bd62018-11-06 18:46:37 +01001283 si_stop_get(&s->si[1]);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001284
1285 /* Call initialisation. */
1286 if (rule->applet.init)
1287 switch (rule->applet.init(appctx, px, s)) {
1288 case 0: return ACT_RET_ERR;
1289 case 1: break;
1290 default: return ACT_RET_YIELD;
1291 }
1292
Christopher Faulet2571bc62019-03-01 11:44:26 +01001293 if (rule->from != ACT_F_HTTP_REQ) {
1294 if (sess->fe == s->be) /* report it if the request was intercepted by the frontend */
1295 _HA_ATOMIC_ADD(&sess->fe->fe_counters.intercepted_req, 1);
1296
1297 /* The flag SF_ASSIGNED prevent from server assignment. */
1298 s->flags |= SF_ASSIGNED;
1299 }
1300
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001301 /* Now we can schedule the applet. */
Willy Tarreau0cd3bd62018-11-06 18:46:37 +01001302 si_cant_get(&s->si[1]);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001303 appctx_wakeup(appctx);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001304 return ACT_RET_STOP;
1305}
1306
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001307/* This stream analyser checks the switching rules and changes the backend
Willy Tarreau4de91492010-01-22 19:10:05 +01001308 * if appropriate. The default_backend rule is also considered, then the
1309 * target backend's forced persistence rules are also evaluated last if any.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001310 * It returns 1 if the processing can continue on next analysers, or zero if it
1311 * either needs more data or wants to immediately abort the request.
1312 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001313static int process_switching_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001314{
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001315 struct persist_rule *prst_rule;
Willy Tarreau192252e2015-04-04 01:47:55 +02001316 struct session *sess = s->sess;
1317 struct proxy *fe = sess->fe;
Willy Tarreau4de91492010-01-22 19:10:05 +01001318
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001319 req->analysers &= ~an_bit;
1320 req->analyse_exp = TICK_ETERNITY;
1321
Christopher Faulet45073512018-07-20 10:16:29 +02001322 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%lu analysers=%02x\n",
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001323 now_ms, __FUNCTION__,
1324 s,
1325 req,
1326 req->rex, req->wex,
1327 req->flags,
Christopher Faulet45073512018-07-20 10:16:29 +02001328 ci_data(req),
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001329 req->analysers);
1330
1331 /* now check whether we have some switching rules for this request */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001332 if (!(s->flags & SF_BE_ASSIGNED)) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001333 struct switching_rule *rule;
1334
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001335 list_for_each_entry(rule, &fe->switching_rules, list) {
Willy Tarreauf51658d2014-04-23 01:21:56 +02001336 int ret = 1;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001337
Willy Tarreauf51658d2014-04-23 01:21:56 +02001338 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001339 ret = acl_exec_cond(rule->cond, fe, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001340 ret = acl_pass(ret);
1341 if (rule->cond->pol == ACL_COND_UNLESS)
1342 ret = !ret;
1343 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001344
1345 if (ret) {
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001346 /* If the backend name is dynamic, try to resolve the name.
1347 * If we can't resolve the name, or if any error occurs, break
1348 * the loop and fallback to the default backend.
1349 */
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001350 struct proxy *backend = NULL;
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001351
1352 if (rule->dynamic) {
Willy Tarreau83061a82018-07-13 11:56:34 +02001353 struct buffer *tmp;
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001354
1355 tmp = alloc_trash_chunk();
1356 if (!tmp)
1357 goto sw_failed;
1358
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001359 if (build_logline(s, tmp->area, tmp->size, &rule->be.expr))
1360 backend = proxy_be_by_name(tmp->area);
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001361
1362 free_trash_chunk(tmp);
1363 tmp = NULL;
1364
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001365 if (!backend)
1366 break;
1367 }
1368 else
1369 backend = rule->be.backend;
1370
Willy Tarreau87b09662015-04-03 00:22:06 +02001371 if (!stream_set_backend(s, backend))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001372 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001373 break;
1374 }
1375 }
1376
1377 /* To ensure correct connection accounting on the backend, we
1378 * have to assign one if it was not set (eg: a listen). This
1379 * measure also takes care of correctly setting the default
1380 * backend if any.
1381 */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001382 if (!(s->flags & SF_BE_ASSIGNED))
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001383 if (!stream_set_backend(s, fe->defbe.be ? fe->defbe.be : s->be))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001384 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001385 }
1386
Willy Tarreaufb356202010-08-03 14:02:05 +02001387 /* we don't want to run the TCP or HTTP filters again if the backend has not changed */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001388 if (fe == s->be) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001389 s->req.analysers &= ~AN_REQ_INSPECT_BE;
1390 s->req.analysers &= ~AN_REQ_HTTP_PROCESS_BE;
Christopher Faulet0184ea72017-01-05 14:06:34 +01001391 s->req.analysers &= ~AN_REQ_FLT_START_BE;
Willy Tarreaufb356202010-08-03 14:02:05 +02001392 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001393
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001394 /* as soon as we know the backend, we must check if we have a matching forced or ignored
Willy Tarreau87b09662015-04-03 00:22:06 +02001395 * persistence rule, and report that in the stream.
Willy Tarreau4de91492010-01-22 19:10:05 +01001396 */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001397 list_for_each_entry(prst_rule, &s->be->persist_rules, list) {
Willy Tarreau4de91492010-01-22 19:10:05 +01001398 int ret = 1;
1399
1400 if (prst_rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001401 ret = acl_exec_cond(prst_rule->cond, s->be, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreau4de91492010-01-22 19:10:05 +01001402 ret = acl_pass(ret);
1403 if (prst_rule->cond->pol == ACL_COND_UNLESS)
1404 ret = !ret;
1405 }
1406
1407 if (ret) {
1408 /* no rule, or the rule matches */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001409 if (prst_rule->type == PERSIST_TYPE_FORCE) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001410 s->flags |= SF_FORCE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001411 } else {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001412 s->flags |= SF_IGNORE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001413 }
Willy Tarreau4de91492010-01-22 19:10:05 +01001414 break;
1415 }
1416 }
1417
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001418 return 1;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001419
1420 sw_failed:
1421 /* immediately abort this request in case of allocation failure */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001422 channel_abort(&s->req);
1423 channel_abort(&s->res);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001424
Willy Tarreaue7dff022015-04-03 01:14:29 +02001425 if (!(s->flags & SF_ERR_MASK))
1426 s->flags |= SF_ERR_RESOURCE;
1427 if (!(s->flags & SF_FINST_MASK))
1428 s->flags |= SF_FINST_R;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001429
Willy Tarreaueee5b512015-04-03 23:46:31 +02001430 if (s->txn)
1431 s->txn->status = 500;
Christopher Faulet0184ea72017-01-05 14:06:34 +01001432 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001433 s->req.analyse_exp = TICK_ETERNITY;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001434 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001435}
1436
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001437/* This stream analyser works on a request. It applies all use-server rules on
1438 * it then returns 1. The data must already be present in the buffer otherwise
1439 * they won't match. It always returns 1.
1440 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001441static int process_server_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001442{
1443 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001444 struct session *sess = s->sess;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001445 struct server_rule *rule;
1446
Christopher Faulet45073512018-07-20 10:16:29 +02001447 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bl=%lu analysers=%02x\n",
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001448 now_ms, __FUNCTION__,
1449 s,
1450 req,
1451 req->rex, req->wex,
1452 req->flags,
Christopher Faulet45073512018-07-20 10:16:29 +02001453 c_data(req),
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001454 req->analysers);
1455
Willy Tarreaue7dff022015-04-03 01:14:29 +02001456 if (!(s->flags & SF_ASSIGNED)) {
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001457 list_for_each_entry(rule, &px->server_rules, list) {
1458 int ret;
1459
Willy Tarreau192252e2015-04-04 01:47:55 +02001460 ret = acl_exec_cond(rule->cond, s->be, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001461 ret = acl_pass(ret);
1462 if (rule->cond->pol == ACL_COND_UNLESS)
1463 ret = !ret;
1464
1465 if (ret) {
1466 struct server *srv = rule->srv.ptr;
1467
Emeric Brun52a91d32017-08-31 14:41:55 +02001468 if ((srv->cur_state != SRV_ST_STOPPED) ||
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001469 (px->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +02001470 (s->flags & SF_FORCE_PRST)) {
1471 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001472 s->target = &srv->obj_type;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001473 break;
1474 }
1475 /* if the server is not UP, let's go on with next rules
1476 * just in case another one is suited.
1477 */
1478 }
1479 }
1480 }
1481
1482 req->analysers &= ~an_bit;
1483 req->analyse_exp = TICK_ETERNITY;
1484 return 1;
1485}
1486
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001487static inline void sticking_rule_find_target(struct stream *s,
1488 struct stktable *t, struct stksess *ts)
1489{
1490 struct proxy *px = s->be;
1491 struct eb32_node *node;
1492 struct dict_entry *de;
1493 void *ptr;
1494 struct server *srv;
1495
1496 /* Look for the server name previously stored in <t> stick-table */
1497 HA_RWLOCK_RDLOCK(STK_SESS_LOCK, &ts->lock);
1498 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_NAME);
1499 de = stktable_data_cast(ptr, server_name);
1500 HA_RWLOCK_RDUNLOCK(STK_SESS_LOCK, &ts->lock);
1501
1502 if (de) {
1503 struct ebpt_node *name;
1504
1505 name = ebis_lookup(&px->conf.used_server_name, de->value.key);
1506 if (name) {
1507 srv = container_of(name, struct server, conf.name);
1508 goto found;
1509 }
1510 }
1511
1512 /* Look for the server ID */
1513 HA_RWLOCK_RDLOCK(STK_SESS_LOCK, &ts->lock);
1514 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_ID);
1515 node = eb32_lookup(&px->conf.used_server_id, stktable_data_cast(ptr, server_id));
1516 HA_RWLOCK_RDUNLOCK(STK_SESS_LOCK, &ts->lock);
1517
1518 if (!node)
1519 return;
1520
1521 srv = container_of(node, struct server, conf.id);
1522 found:
1523 if ((srv->cur_state != SRV_ST_STOPPED) ||
1524 (px->options & PR_O_PERSIST) || (s->flags & SF_FORCE_PRST)) {
1525 s->flags |= SF_DIRECT | SF_ASSIGNED;
1526 s->target = &srv->obj_type;
1527 }
1528}
1529
Emeric Brun1d33b292010-01-04 15:47:17 +01001530/* This stream analyser works on a request. It applies all sticking rules on
1531 * it then returns 1. The data must already be present in the buffer otherwise
1532 * they won't match. It always returns 1.
1533 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001534static int process_sticking_rules(struct stream *s, struct channel *req, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001535{
1536 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001537 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001538 struct sticking_rule *rule;
1539
Christopher Faulet45073512018-07-20 10:16:29 +02001540 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%lu analysers=%02x\n",
Emeric Brun1d33b292010-01-04 15:47:17 +01001541 now_ms, __FUNCTION__,
1542 s,
1543 req,
1544 req->rex, req->wex,
1545 req->flags,
Christopher Faulet45073512018-07-20 10:16:29 +02001546 ci_data(req),
Emeric Brun1d33b292010-01-04 15:47:17 +01001547 req->analysers);
1548
1549 list_for_each_entry(rule, &px->sticking_rules, list) {
1550 int ret = 1 ;
1551 int i;
1552
Willy Tarreau9667a802013-12-09 12:52:13 +01001553 /* Only the first stick store-request of each table is applied
1554 * and other ones are ignored. The purpose is to allow complex
1555 * configurations which look for multiple entries by decreasing
1556 * order of precision and to stop at the first which matches.
1557 * An example could be a store of the IP address from an HTTP
1558 * header first, then from the source if not found.
1559 */
Emeric Brun1d33b292010-01-04 15:47:17 +01001560 for (i = 0; i < s->store_count; i++) {
1561 if (rule->table.t == s->store[i].table)
1562 break;
1563 }
1564
1565 if (i != s->store_count)
1566 continue;
1567
1568 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001569 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001570 ret = acl_pass(ret);
1571 if (rule->cond->pol == ACL_COND_UNLESS)
1572 ret = !ret;
1573 }
1574
1575 if (ret) {
1576 struct stktable_key *key;
1577
Willy Tarreau192252e2015-04-04 01:47:55 +02001578 key = stktable_fetch_key(rule->table.t, px, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL, rule->expr, NULL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001579 if (!key)
1580 continue;
1581
1582 if (rule->flags & STK_IS_MATCH) {
1583 struct stksess *ts;
1584
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001585 if ((ts = stktable_lookup_key(rule->table.t, key)) != NULL) {
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001586 if (!(s->flags & SF_ASSIGNED))
1587 sticking_rule_find_target(s, rule->table.t, ts);
Emeric Brun819fc6f2017-06-13 19:37:32 +02001588 stktable_touch_local(rule->table.t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001589 }
1590 }
1591 if (rule->flags & STK_IS_STORE) {
1592 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
1593 struct stksess *ts;
1594
1595 ts = stksess_new(rule->table.t, key);
1596 if (ts) {
1597 s->store[s->store_count].table = rule->table.t;
1598 s->store[s->store_count++].ts = ts;
1599 }
1600 }
1601 }
1602 }
1603 }
1604
1605 req->analysers &= ~an_bit;
1606 req->analyse_exp = TICK_ETERNITY;
1607 return 1;
1608}
1609
1610/* This stream analyser works on a response. It applies all store rules on it
1611 * then returns 1. The data must already be present in the buffer otherwise
1612 * they won't match. It always returns 1.
1613 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001614static int process_store_rules(struct stream *s, struct channel *rep, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001615{
1616 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001617 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001618 struct sticking_rule *rule;
1619 int i;
Willy Tarreau9667a802013-12-09 12:52:13 +01001620 int nbreq = s->store_count;
Emeric Brun1d33b292010-01-04 15:47:17 +01001621
Christopher Faulet45073512018-07-20 10:16:29 +02001622 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%lu analysers=%02x\n",
Emeric Brun1d33b292010-01-04 15:47:17 +01001623 now_ms, __FUNCTION__,
1624 s,
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001625 rep,
1626 rep->rex, rep->wex,
1627 rep->flags,
Christopher Faulet45073512018-07-20 10:16:29 +02001628 ci_data(rep),
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001629 rep->analysers);
Emeric Brun1d33b292010-01-04 15:47:17 +01001630
1631 list_for_each_entry(rule, &px->storersp_rules, list) {
1632 int ret = 1 ;
Emeric Brun1d33b292010-01-04 15:47:17 +01001633
Willy Tarreau9667a802013-12-09 12:52:13 +01001634 /* Only the first stick store-response of each table is applied
1635 * and other ones are ignored. The purpose is to allow complex
1636 * configurations which look for multiple entries by decreasing
1637 * order of precision and to stop at the first which matches.
1638 * An example could be a store of a set-cookie value, with a
1639 * fallback to a parameter found in a 302 redirect.
1640 *
1641 * The store-response rules are not allowed to override the
1642 * store-request rules for the same table, but they may coexist.
1643 * Thus we can have up to one store-request entry and one store-
1644 * response entry for the same table at any time.
1645 */
1646 for (i = nbreq; i < s->store_count; i++) {
1647 if (rule->table.t == s->store[i].table)
1648 break;
1649 }
1650
1651 /* skip existing entries for this table */
1652 if (i < s->store_count)
1653 continue;
1654
Emeric Brun1d33b292010-01-04 15:47:17 +01001655 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001656 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_RES|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001657 ret = acl_pass(ret);
1658 if (rule->cond->pol == ACL_COND_UNLESS)
1659 ret = !ret;
1660 }
1661
1662 if (ret) {
1663 struct stktable_key *key;
1664
Willy Tarreau192252e2015-04-04 01:47:55 +02001665 key = stktable_fetch_key(rule->table.t, px, sess, s, SMP_OPT_DIR_RES|SMP_OPT_FINAL, rule->expr, NULL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001666 if (!key)
1667 continue;
1668
Willy Tarreau37e340c2013-12-06 23:05:21 +01001669 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001670 struct stksess *ts;
1671
1672 ts = stksess_new(rule->table.t, key);
1673 if (ts) {
1674 s->store[s->store_count].table = rule->table.t;
Emeric Brun1d33b292010-01-04 15:47:17 +01001675 s->store[s->store_count++].ts = ts;
1676 }
1677 }
1678 }
1679 }
1680
1681 /* process store request and store response */
1682 for (i = 0; i < s->store_count; i++) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001683 struct stksess *ts;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001684 void *ptr;
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001685 struct dict_entry *de;
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001686
Willy Tarreauc93cd162014-05-13 15:54:22 +02001687 if (objt_server(s->target) && objt_server(s->target)->flags & SRV_F_NON_STICK) {
Simon Hormanfa461682011-06-25 09:39:49 +09001688 stksess_free(s->store[i].table, s->store[i].ts);
1689 s->store[i].ts = NULL;
1690 continue;
1691 }
1692
Emeric Brun819fc6f2017-06-13 19:37:32 +02001693 ts = stktable_set_entry(s->store[i].table, s->store[i].ts);
1694 if (ts != s->store[i].ts) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001695 /* the entry already existed, we can free ours */
Emeric Brun1d33b292010-01-04 15:47:17 +01001696 stksess_free(s->store[i].table, s->store[i].ts);
Emeric Brun1d33b292010-01-04 15:47:17 +01001697 }
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001698 s->store[i].ts = NULL;
Emeric Brun819fc6f2017-06-13 19:37:32 +02001699
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001700 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Willy Tarreaub8d42d02018-09-20 11:11:15 +02001701 ptr = __stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_ID);
1702 stktable_data_cast(ptr, server_id) = __objt_server(s->target)->puid;
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001703 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001704
1705 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
1706 de = dict_insert(&server_name_dict, __objt_server(s->target)->id);
1707 if (de) {
1708 ptr = __stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_NAME);
1709 stktable_data_cast(ptr, server_name) = de;
1710 }
1711 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
1712
Emeric Brun819fc6f2017-06-13 19:37:32 +02001713 stktable_touch_local(s->store[i].table, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001714 }
Willy Tarreau2a164ee2010-06-18 09:57:45 +02001715 s->store_count = 0; /* everything is stored */
Emeric Brun1d33b292010-01-04 15:47:17 +01001716
1717 rep->analysers &= ~an_bit;
1718 rep->analyse_exp = TICK_ETERNITY;
1719 return 1;
1720}
1721
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001722/* This macro is very specific to the function below. See the comments in
Willy Tarreau87b09662015-04-03 00:22:06 +02001723 * process_stream() below to understand the logic and the tests.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001724 */
1725#define UPDATE_ANALYSERS(real, list, back, flag) { \
1726 list = (((list) & ~(flag)) | ~(back)) & (real); \
1727 back = real; \
1728 if (!(list)) \
1729 break; \
1730 if (((list) ^ ((list) & ((list) - 1))) < (flag)) \
1731 continue; \
1732}
1733
Christopher Fauleta9215b72016-05-11 17:06:28 +02001734/* These 2 following macros call an analayzer for the specified channel if the
1735 * right flag is set. The first one is used for "filterable" analyzers. If a
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001736 * stream has some registered filters, pre and post analyaze callbacks are
Christopher Faulet0184ea72017-01-05 14:06:34 +01001737 * called. The second are used for other analyzers (AN_REQ/RES_FLT_* and
Christopher Fauleta9215b72016-05-11 17:06:28 +02001738 * AN_REQ/RES_HTTP_XFER_BODY) */
1739#define FLT_ANALYZE(strm, chn, fun, list, back, flag, ...) \
1740 { \
1741 if ((list) & (flag)) { \
1742 if (HAS_FILTERS(strm)) { \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001743 if (!flt_pre_analyze((strm), (chn), (flag))) \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001744 break; \
1745 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1746 break; \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001747 if (!flt_post_analyze((strm), (chn), (flag))) \
1748 break; \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001749 } \
1750 else { \
1751 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1752 break; \
1753 } \
1754 UPDATE_ANALYSERS((chn)->analysers, (list), \
1755 (back), (flag)); \
1756 } \
1757 }
1758
1759#define ANALYZE(strm, chn, fun, list, back, flag, ...) \
1760 { \
1761 if ((list) & (flag)) { \
1762 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1763 break; \
1764 UPDATE_ANALYSERS((chn)->analysers, (list), \
1765 (back), (flag)); \
1766 } \
1767 }
1768
Willy Tarreau87b09662015-04-03 00:22:06 +02001769/* Processes the client, server, request and response jobs of a stream task,
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001770 * then puts it back to the wait queue in a clean state, or cleans up its
1771 * resources if it must be deleted. Returns in <next> the date the task wants
1772 * to be woken up, or TICK_ETERNITY. In order not to call all functions for
1773 * nothing too many times, the request and response buffers flags are monitored
1774 * and each function is called only if at least another function has changed at
1775 * least one flag it is interested in.
1776 */
Olivier Houchard9f6af332018-05-25 14:04:04 +02001777struct task *process_stream(struct task *t, void *context, unsigned short state)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001778{
Willy Tarreau827aee92011-03-10 16:55:02 +01001779 struct server *srv;
Olivier Houchard9f6af332018-05-25 14:04:04 +02001780 struct stream *s = context;
Willy Tarreaufb0afa72015-04-03 14:46:27 +02001781 struct session *sess = s->sess;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001782 unsigned int rqf_last, rpf_last;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001783 unsigned int rq_prod_last, rq_cons_last;
1784 unsigned int rp_cons_last, rp_prod_last;
Willy Tarreau576507f2010-01-07 00:09:04 +01001785 unsigned int req_ana_back;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001786 struct channel *req, *res;
1787 struct stream_interface *si_f, *si_b;
Willy Tarreau3d07a162019-04-25 19:15:20 +02001788 unsigned int rate;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001789
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01001790 activity[tid].stream++;
1791
Willy Tarreau8f128b42014-11-28 15:07:47 +01001792 req = &s->req;
1793 res = &s->res;
1794
1795 si_f = &s->si[0];
1796 si_b = &s->si[1];
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001797
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001798 /* First, attempt to receive pending data from I/O layers */
Willy Tarreauade64782018-11-17 19:51:07 +01001799 si_sync_recv(si_f);
1800 si_sync_recv(si_b);
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001801
Olivier Houchard53216e72018-10-10 15:46:36 +02001802redo:
Willy Tarreau3d07a162019-04-25 19:15:20 +02001803 rate = update_freq_ctr(&s->call_rate, 1);
1804 if (rate >= 100000 && s->call_rate.prev_ctr) { // make sure to wait at least a full second
1805 stream_dump_and_crash(&s->obj_type, read_freq_ctr(&s->call_rate));
1806 }
Olivier Houchardc2aa7112018-09-11 18:27:21 +02001807
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001808 //DPRINTF(stderr, "%s:%d: cs=%d ss=%d(%d) rqf=0x%08x rpf=0x%08x\n", __FUNCTION__, __LINE__,
Willy Tarreau8f128b42014-11-28 15:07:47 +01001809 // si_f->state, si_b->state, si_b->err_type, req->flags, res->flags);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001810
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001811 /* this data may be no longer valid, clear it */
Willy Tarreaueee5b512015-04-03 23:46:31 +02001812 if (s->txn)
1813 memset(&s->txn->auth, 0, sizeof(s->txn->auth));
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001814
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02001815 /* This flag must explicitly be set every time */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001816 req->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
1817 res->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001818
1819 /* Keep a copy of req/rep flags so that we can detect shutdowns */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001820 rqf_last = req->flags & ~CF_MASK_ANALYSER;
1821 rpf_last = res->flags & ~CF_MASK_ANALYSER;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001822
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001823 /* we don't want the stream interface functions to recursively wake us up */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001824 si_f->flags |= SI_FL_DONT_WAKE;
1825 si_b->flags |= SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001826
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001827 /* update pending events */
Olivier Houchard9f6af332018-05-25 14:04:04 +02001828 s->pending_events |= (state & TASK_WOKEN_ANY);
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001829
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001830 /* 1a: Check for low level timeouts if needed. We just set a flag on
1831 * stream interfaces when their timeouts have expired.
1832 */
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001833 if (unlikely(s->pending_events & TASK_WOKEN_TIMER)) {
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001834 si_check_timeouts(si_f);
1835 si_check_timeouts(si_b);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001836
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001837 /* check channel timeouts, and close the corresponding stream interfaces
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001838 * for future reads or writes. Note: this will also concern upper layers
1839 * but we do not touch any other flag. We must be careful and correctly
1840 * detect state changes when calling them.
1841 */
1842
Willy Tarreau8f128b42014-11-28 15:07:47 +01001843 channel_check_timeouts(req);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001844
Willy Tarreau8f128b42014-11-28 15:07:47 +01001845 if (unlikely((req->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1846 si_b->flags |= SI_FL_NOLINGER;
1847 si_shutw(si_b);
Willy Tarreau14641402009-12-29 14:49:56 +01001848 }
1849
Willy Tarreau8f128b42014-11-28 15:07:47 +01001850 if (unlikely((req->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1851 if (si_f->flags & SI_FL_NOHALF)
1852 si_f->flags |= SI_FL_NOLINGER;
1853 si_shutr(si_f);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001854 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001855
Willy Tarreau8f128b42014-11-28 15:07:47 +01001856 channel_check_timeouts(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001857
Willy Tarreau8f128b42014-11-28 15:07:47 +01001858 if (unlikely((res->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1859 si_f->flags |= SI_FL_NOLINGER;
1860 si_shutw(si_f);
Willy Tarreau14641402009-12-29 14:49:56 +01001861 }
1862
Willy Tarreau8f128b42014-11-28 15:07:47 +01001863 if (unlikely((res->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1864 if (si_b->flags & SI_FL_NOHALF)
1865 si_b->flags |= SI_FL_NOLINGER;
1866 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001867 }
Willy Tarreau798f4322012-11-08 14:49:17 +01001868
Christopher Fauleta00d8172016-11-10 14:58:05 +01001869 if (HAS_FILTERS(s))
1870 flt_stream_check_timeouts(s);
1871
Willy Tarreau798f4322012-11-08 14:49:17 +01001872 /* Once in a while we're woken up because the task expires. But
1873 * this does not necessarily mean that a timeout has been reached.
Willy Tarreau87b09662015-04-03 00:22:06 +02001874 * So let's not run a whole stream processing if only an expiration
Willy Tarreau798f4322012-11-08 14:49:17 +01001875 * timeout needs to be refreshed.
1876 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001877 if (!((req->flags | res->flags) &
Willy Tarreau798f4322012-11-08 14:49:17 +01001878 (CF_SHUTR|CF_READ_ACTIVITY|CF_READ_TIMEOUT|CF_SHUTW|
Willy Tarreauede3d882018-10-24 17:17:56 +02001879 CF_WRITE_ACTIVITY|CF_WRITE_TIMEOUT|CF_ANA_TIMEOUT)) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01001880 !((si_f->flags | si_b->flags) & (SI_FL_EXP|SI_FL_ERR)) &&
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001881 ((s->pending_events & TASK_WOKEN_ANY) == TASK_WOKEN_TIMER)) {
Willy Tarreau5fb04712016-05-04 10:18:37 +02001882 si_f->flags &= ~SI_FL_DONT_WAKE;
1883 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau798f4322012-11-08 14:49:17 +01001884 goto update_exp_and_leave;
Willy Tarreau5fb04712016-05-04 10:18:37 +02001885 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001886 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001887
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001888 /* below we may emit error messages so we have to ensure that we have
1889 * our buffers properly allocated.
1890 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001891 if (!stream_alloc_work_buffer(s)) {
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001892 /* No buffer available, we've been subscribed to the list of
1893 * buffer waiters, let's wait for our turn.
1894 */
Willy Tarreau5fb04712016-05-04 10:18:37 +02001895 si_f->flags &= ~SI_FL_DONT_WAKE;
1896 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001897 goto update_exp_and_leave;
1898 }
1899
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001900 /* 1b: check for low-level errors reported at the stream interface.
1901 * First we check if it's a retryable error (in which case we don't
1902 * want to tell the buffer). Otherwise we report the error one level
1903 * upper by setting flags into the buffers. Note that the side towards
1904 * the client cannot have connect (hence retryable) errors. Also, the
1905 * connection setup code must be able to deal with any type of abort.
1906 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001907 srv = objt_server(s->target);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001908 if (unlikely(si_f->flags & SI_FL_ERR)) {
1909 if (si_f->state == SI_ST_EST || si_f->state == SI_ST_DIS) {
1910 si_shutr(si_f);
1911 si_shutw(si_f);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001912 si_report_error(si_f);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001913 if (!(req->analysers) && !(res->analysers)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001914 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1915 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001916 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001917 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001918 if (!(s->flags & SF_ERR_MASK))
1919 s->flags |= SF_ERR_CLICL;
1920 if (!(s->flags & SF_FINST_MASK))
1921 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001922 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001923 }
1924 }
1925
Willy Tarreau8f128b42014-11-28 15:07:47 +01001926 if (unlikely(si_b->flags & SI_FL_ERR)) {
1927 if (si_b->state == SI_ST_EST || si_b->state == SI_ST_DIS) {
1928 si_shutr(si_b);
1929 si_shutw(si_b);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001930 si_report_error(si_b);
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001931 _HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001932 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001933 _HA_ATOMIC_ADD(&srv->counters.failed_resp, 1);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001934 if (!(req->analysers) && !(res->analysers)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001935 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1936 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001937 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001938 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001939 if (!(s->flags & SF_ERR_MASK))
1940 s->flags |= SF_ERR_SRVCL;
1941 if (!(s->flags & SF_FINST_MASK))
1942 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001943 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001944 }
1945 /* note: maybe we should process connection errors here ? */
1946 }
1947
Willy Tarreau8f128b42014-11-28 15:07:47 +01001948 if (si_b->state == SI_ST_CON) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001949 /* we were trying to establish a connection on the server side,
1950 * maybe it succeeded, maybe it failed, maybe we timed out, ...
1951 */
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01001952 if (unlikely(!sess_update_st_con_tcp(s)))
1953 sess_update_st_cer(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001954 else if (si_b->state == SI_ST_EST)
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01001955 sess_establish(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001956
1957 /* state is now one of SI_ST_CON (still in progress), SI_ST_EST
1958 * (established), SI_ST_DIS (abort), SI_ST_CLO (last error),
1959 * SI_ST_ASS/SI_ST_TAR/SI_ST_REQ for retryable errors.
1960 */
1961 }
1962
Willy Tarreau8f128b42014-11-28 15:07:47 +01001963 rq_prod_last = si_f->state;
1964 rq_cons_last = si_b->state;
1965 rp_cons_last = si_f->state;
1966 rp_prod_last = si_b->state;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001967
1968 resync_stream_interface:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001969 /* Check for connection closure */
1970
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001971 DPRINTF(stderr,
Christopher Faulet45073512018-07-20 10:16:29 +02001972 "[%u] %s:%d: task=%p s=%p, sfl=0x%08x, rq=%p, rp=%p, exp(r,w)=%u,%u rqf=%08x rpf=%08x rqh=%lu rqt=%lu rph=%lu rpt=%lu cs=%d ss=%d, cet=0x%x set=0x%x retr=%d\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001973 now_ms, __FUNCTION__, __LINE__,
1974 t,
1975 s, s->flags,
Willy Tarreau8f128b42014-11-28 15:07:47 +01001976 req, res,
1977 req->rex, res->wex,
1978 req->flags, res->flags,
Christopher Faulet45073512018-07-20 10:16:29 +02001979 ci_data(req), co_data(req), ci_data(res), co_data(res), si_f->state, si_b->state,
Willy Tarreau8f128b42014-11-28 15:07:47 +01001980 si_f->err_type, si_b->err_type,
1981 si_b->conn_retries);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001982
1983 /* nothing special to be done on client side */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001984 if (unlikely(si_f->state == SI_ST_DIS))
1985 si_f->state = SI_ST_CLO;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001986
1987 /* When a server-side connection is released, we have to count it and
1988 * check for pending connections on this server.
1989 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001990 if (unlikely(si_b->state == SI_ST_DIS)) {
1991 si_b->state = SI_ST_CLO;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001992 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01001993 if (srv) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001994 if (s->flags & SF_CURR_SESS) {
1995 s->flags &= ~SF_CURR_SESS;
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001996 _HA_ATOMIC_SUB(&srv->cur_sess, 1);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001997 }
1998 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001999 if (may_dequeue_tasks(srv, s->be))
2000 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002001 }
2002 }
2003
2004 /*
2005 * Note: of the transient states (REQ, CER, DIS), only REQ may remain
2006 * at this point.
2007 */
2008
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002009 resync_request:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002010 /* Analyse request */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002011 if (((req->flags & ~rqf_last) & CF_MASK_ANALYSER) ||
2012 ((req->flags ^ rqf_last) & CF_MASK_STATIC) ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01002013 (req->analysers && (req->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01002014 si_f->state != rq_prod_last ||
2015 si_b->state != rq_cons_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002016 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002017 unsigned int flags = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002018
Willy Tarreau8f128b42014-11-28 15:07:47 +01002019 if (si_f->state >= SI_ST_EST) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01002020 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002021 unsigned int ana_list;
2022 unsigned int ana_back;
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02002023
Willy Tarreau90deb182010-01-07 00:20:41 +01002024 /* it's up to the analysers to stop new connections,
2025 * disable reading or closing. Note: if an analyser
2026 * disables any of these bits, it is responsible for
2027 * enabling them again when it disables itself, so
2028 * that other analysers are called in similar conditions.
2029 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002030 channel_auto_read(req);
2031 channel_auto_connect(req);
2032 channel_auto_close(req);
Willy Tarreauedcf6682008-11-30 23:15:34 +01002033
2034 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01002035 * req->analysers, following the bit order from LSB
Willy Tarreauedcf6682008-11-30 23:15:34 +01002036 * to MSB. The analysers must remove themselves from
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02002037 * the list when not needed. Any analyser may return 0
2038 * to break out of the loop, either because of missing
2039 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02002040 * kill the stream. We loop at least once through each
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02002041 * analyser, and we may loop again if other analysers
2042 * are added in the middle.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002043 *
2044 * We build a list of analysers to run. We evaluate all
2045 * of these analysers in the order of the lower bit to
2046 * the higher bit. This ordering is very important.
2047 * An analyser will often add/remove other analysers,
2048 * including itself. Any changes to itself have no effect
2049 * on the loop. If it removes any other analysers, we
2050 * want those analysers not to be called anymore during
2051 * this loop. If it adds an analyser that is located
2052 * after itself, we want it to be scheduled for being
2053 * processed during the loop. If it adds an analyser
2054 * which is located before it, we want it to switch to
2055 * it immediately, even if it has already been called
2056 * once but removed since.
2057 *
2058 * In order to achieve this, we compare the analyser
2059 * list after the call with a copy of it before the
2060 * call. The work list is fed with analyser bits that
2061 * appeared during the call. Then we compare previous
2062 * work list with the new one, and check the bits that
2063 * appeared. If the lowest of these bits is lower than
2064 * the current bit, it means we have enabled a previous
2065 * analyser and must immediately loop again.
Willy Tarreauedcf6682008-11-30 23:15:34 +01002066 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002067
Willy Tarreau8f128b42014-11-28 15:07:47 +01002068 ana_list = ana_back = req->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01002069 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002070 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01002071 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_FE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02002072 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_FE);
2073 FLT_ANALYZE(s, req, http_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_HTTP);
2074 FLT_ANALYZE(s, req, http_wait_for_request_body, ana_list, ana_back, AN_REQ_HTTP_BODY);
2075 FLT_ANALYZE(s, req, http_process_req_common, ana_list, ana_back, AN_REQ_HTTP_PROCESS_FE, sess->fe);
2076 FLT_ANALYZE(s, req, process_switching_rules, ana_list, ana_back, AN_REQ_SWITCHING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01002077 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02002078 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_BE);
2079 FLT_ANALYZE(s, req, http_process_req_common, ana_list, ana_back, AN_REQ_HTTP_PROCESS_BE, s->be);
2080 FLT_ANALYZE(s, req, http_process_tarpit, ana_list, ana_back, AN_REQ_HTTP_TARPIT);
2081 FLT_ANALYZE(s, req, process_server_rules, ana_list, ana_back, AN_REQ_SRV_RULES);
2082 FLT_ANALYZE(s, req, http_process_request, ana_list, ana_back, AN_REQ_HTTP_INNER);
2083 FLT_ANALYZE(s, req, tcp_persist_rdp_cookie, ana_list, ana_back, AN_REQ_PRST_RDP_COOKIE);
2084 FLT_ANALYZE(s, req, process_sticking_rules, ana_list, ana_back, AN_REQ_STICKING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01002085 ANALYZE (s, req, flt_analyze_http_headers, ana_list, ana_back, AN_REQ_FLT_HTTP_HDRS);
Christopher Fauleta9215b72016-05-11 17:06:28 +02002086 ANALYZE (s, req, http_request_forward_body, ana_list, ana_back, AN_REQ_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02002087 ANALYZE (s, req, pcli_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01002088 ANALYZE (s, req, flt_xfer_data, ana_list, ana_back, AN_REQ_FLT_XFER_DATA);
2089 ANALYZE (s, req, flt_end_analyze, ana_list, ana_back, AN_REQ_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01002090 break;
2091 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002092 }
Willy Tarreau84455332009-03-15 22:34:05 +01002093
Willy Tarreau8f128b42014-11-28 15:07:47 +01002094 rq_prod_last = si_f->state;
2095 rq_cons_last = si_b->state;
2096 req->flags &= ~CF_WAKE_ONCE;
2097 rqf_last = req->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02002098
Willy Tarreau8f128b42014-11-28 15:07:47 +01002099 if ((req->flags ^ flags) & CF_MASK_STATIC)
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002100 goto resync_request;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002101 }
2102
Willy Tarreau576507f2010-01-07 00:09:04 +01002103 /* we'll monitor the request analysers while parsing the response,
2104 * because some response analysers may indirectly enable new request
2105 * analysers (eg: HTTP keep-alive).
2106 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002107 req_ana_back = req->analysers;
Willy Tarreau576507f2010-01-07 00:09:04 +01002108
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002109 resync_response:
2110 /* Analyse response */
2111
Willy Tarreau8f128b42014-11-28 15:07:47 +01002112 if (((res->flags & ~rpf_last) & CF_MASK_ANALYSER) ||
2113 (res->flags ^ rpf_last) & CF_MASK_STATIC ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01002114 (res->analysers && (res->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01002115 si_f->state != rp_cons_last ||
2116 si_b->state != rp_prod_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002117 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002118 unsigned int flags = res->flags;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002119
Willy Tarreau8f128b42014-11-28 15:07:47 +01002120 if (si_b->state >= SI_ST_EST) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01002121 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002122 unsigned int ana_list;
2123 unsigned int ana_back;
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002124
Willy Tarreau90deb182010-01-07 00:20:41 +01002125 /* it's up to the analysers to stop disable reading or
2126 * closing. Note: if an analyser disables any of these
2127 * bits, it is responsible for enabling them again when
2128 * it disables itself, so that other analysers are called
2129 * in similar conditions.
2130 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002131 channel_auto_read(res);
2132 channel_auto_close(res);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002133
2134 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01002135 * res->analysers, following the bit order from LSB
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002136 * to MSB. The analysers must remove themselves from
2137 * the list when not needed. Any analyser may return 0
2138 * to break out of the loop, either because of missing
2139 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02002140 * kill the stream. We loop at least once through each
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002141 * analyser, and we may loop again if other analysers
2142 * are added in the middle.
2143 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002144
Willy Tarreau8f128b42014-11-28 15:07:47 +01002145 ana_list = ana_back = res->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01002146 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002147 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01002148 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_FE);
2149 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02002150 FLT_ANALYZE(s, res, tcp_inspect_response, ana_list, ana_back, AN_RES_INSPECT);
2151 FLT_ANALYZE(s, res, http_wait_for_response, ana_list, ana_back, AN_RES_WAIT_HTTP);
2152 FLT_ANALYZE(s, res, process_store_rules, ana_list, ana_back, AN_RES_STORE_RULES);
2153 FLT_ANALYZE(s, res, http_process_res_common, ana_list, ana_back, AN_RES_HTTP_PROCESS_BE, s->be);
Christopher Faulet0184ea72017-01-05 14:06:34 +01002154 ANALYZE (s, res, flt_analyze_http_headers, ana_list, ana_back, AN_RES_FLT_HTTP_HDRS);
Christopher Fauleta9215b72016-05-11 17:06:28 +02002155 ANALYZE (s, res, http_response_forward_body, ana_list, ana_back, AN_RES_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02002156 ANALYZE (s, res, pcli_wait_for_response, ana_list, ana_back, AN_RES_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01002157 ANALYZE (s, res, flt_xfer_data, ana_list, ana_back, AN_RES_FLT_XFER_DATA);
2158 ANALYZE (s, res, flt_end_analyze, ana_list, ana_back, AN_RES_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01002159 break;
2160 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002161 }
2162
Willy Tarreau8f128b42014-11-28 15:07:47 +01002163 rp_cons_last = si_f->state;
2164 rp_prod_last = si_b->state;
Christopher Fauletcdaea892017-07-06 15:49:30 +02002165 res->flags &= ~CF_WAKE_ONCE;
Willy Tarreau8f128b42014-11-28 15:07:47 +01002166 rpf_last = res->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02002167
Willy Tarreau8f128b42014-11-28 15:07:47 +01002168 if ((res->flags ^ flags) & CF_MASK_STATIC)
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002169 goto resync_response;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002170 }
2171
Willy Tarreau576507f2010-01-07 00:09:04 +01002172 /* maybe someone has added some request analysers, so we must check and loop */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002173 if (req->analysers & ~req_ana_back)
Willy Tarreau576507f2010-01-07 00:09:04 +01002174 goto resync_request;
2175
Willy Tarreau8f128b42014-11-28 15:07:47 +01002176 if ((req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0499e352010-12-17 07:13:42 +01002177 goto resync_request;
2178
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002179 /* FIXME: here we should call protocol handlers which rely on
2180 * both buffers.
2181 */
2182
2183
2184 /*
Willy Tarreau87b09662015-04-03 00:22:06 +02002185 * Now we propagate unhandled errors to the stream. Normally
Willy Tarreauae526782010-03-04 20:34:23 +01002186 * we're just in a data phase here since it means we have not
2187 * seen any analyser who could set an error status.
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002188 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002189 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002190 if (unlikely(!(s->flags & SF_ERR_MASK))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002191 if (req->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002192 /* Report it if the client got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002193 req->analysers = 0;
2194 if (req->flags & CF_READ_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002195 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
2196 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002197 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002198 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002199 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002200 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002201 else if (req->flags & CF_READ_TIMEOUT) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002202 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
2203 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002204 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002205 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002206 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01002207 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002208 else if (req->flags & CF_WRITE_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002209 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
2210 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002211 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002212 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002213 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002214 }
2215 else {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002216 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
2217 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002218 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002219 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002220 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002221 }
Willy Tarreau84455332009-03-15 22:34:05 +01002222 sess_set_term_flags(s);
Christopher Faulet5e1a9d72019-04-23 17:34:22 +02002223
2224 /* Abort the request if a client error occurred while
2225 * the backend stream-interface is in the SI_ST_INI
2226 * state. It is switched into the SI_ST_CLO state and
2227 * the request channel is erased. */
2228 if (si_b->state == SI_ST_INI) {
2229 si_b->state = SI_ST_CLO;
2230 channel_abort(req);
2231 if (IS_HTX_STRM(s))
2232 channel_htx_erase(req, htxbuf(&req->buf));
2233 else
2234 channel_erase(req);
2235 }
Willy Tarreau84455332009-03-15 22:34:05 +01002236 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002237 else if (res->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002238 /* Report it if the server got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002239 res->analysers = 0;
2240 if (res->flags & CF_READ_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002241 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
2242 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002243 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002244 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002245 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002246 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002247 else if (res->flags & CF_READ_TIMEOUT) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002248 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
2249 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002250 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002251 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002252 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002253 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002254 else if (res->flags & CF_WRITE_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002255 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
2256 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002257 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002258 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002259 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002260 }
2261 else {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002262 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
2263 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002264 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002265 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002266 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01002267 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002268 sess_set_term_flags(s);
2269 }
Willy Tarreau84455332009-03-15 22:34:05 +01002270 }
2271
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002272 /*
2273 * Here we take care of forwarding unhandled data. This also includes
2274 * connection establishments and shutdown requests.
2275 */
2276
2277
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002278 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002279 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002280 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002281 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002282 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02002283 if (unlikely((!req->analysers || (req->analysers == AN_REQ_FLT_END && !(req->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002284 !(req->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
2285 (si_f->state >= SI_ST_EST) &&
2286 (req->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002287 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002288 * attached to it. If any data are left in, we'll permit them to
2289 * move.
2290 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002291 channel_auto_read(req);
2292 channel_auto_connect(req);
2293 channel_auto_close(req);
Willy Tarreau5bd8c372009-01-19 00:32:22 +01002294
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002295 if (IS_HTX_STRM(s)) {
2296 struct htx *htx = htxbuf(&req->buf);
2297
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002298 /* We'll let data flow between the producer (if still connected)
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002299 * to the consumer.
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002300 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002301 co_set_data(req, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002302 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002303 channel_htx_forward_forever(req, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002304 }
2305 else {
2306 /* We'll let data flow between the producer (if still connected)
2307 * to the consumer (which might possibly not be connected yet).
2308 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002309 c_adv(req, ci_data(req));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002310 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2311 channel_forward_forever(req);
Willy Tarreau42529c32015-07-09 18:38:57 +02002312
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002313 /* Just in order to support fetching HTTP contents after start
2314 * of forwarding when the HTTP forwarding analyser is not used,
2315 * we simply reset msg->sov so that HTTP rewinding points to the
2316 * headers.
2317 */
Olivier Houchard1909f6d2018-12-06 13:28:30 +01002318 if (s->txn)
2319 s->txn->req.sov = s->txn->req.eoh + s->txn->req.eol - co_data(req);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002320 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002321 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002322
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002323 /* check if it is wise to enable kernel splicing to forward request data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002324 if (!(req->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2325 req->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002326 (global.tune.options & GTUNE_USE_SPLICE) &&
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002327 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->rcv_pipe) &&
2328 (objt_cs(si_b->end) && __objt_cs(si_b->end)->conn->xprt && __objt_cs(si_b->end)->conn->xprt->snd_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002329 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002330 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_REQ) ||
2331 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002332 (req->flags & CF_STREAMER_FAST)))) {
2333 req->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002334 }
2335
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002336 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002337 rqf_last = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002338
2339 /*
2340 * Now forward all shutdown requests between both sides of the buffer
2341 */
2342
Willy Tarreau520d95e2009-09-19 21:04:57 +02002343 /* first, let's check if the request buffer needs to shutdown(write), which may
2344 * happen either because the input is closed or because we want to force a close
Willy Tarreau05cdd962014-05-10 14:30:07 +02002345 * once the server has begun to respond. If a half-closed timeout is set, we adjust
2346 * the other side's timeout as well.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002347 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002348 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau05cdd962014-05-10 14:30:07 +02002349 (CF_AUTO_CLOSE|CF_SHUTR))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002350 channel_shutw_now(req);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002351 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002352
2353 /* shutdown(write) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002354 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2355 channel_is_empty(req))) {
2356 if (req->flags & CF_READ_ERROR)
2357 si_b->flags |= SI_FL_NOLINGER;
2358 si_shutw(si_b);
Willy Tarreau8615c2a2013-06-21 08:20:19 +02002359 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002360
2361 /* shutdown(write) done on server side, we must stop the client too */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002362 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW &&
2363 !req->analysers))
2364 channel_shutr_now(req);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002365
2366 /* shutdown(read) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002367 if (unlikely((req->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2368 if (si_f->flags & SI_FL_NOHALF)
2369 si_f->flags |= SI_FL_NOLINGER;
2370 si_shutr(si_f);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002371 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002372
Willy Tarreau520d95e2009-09-19 21:04:57 +02002373 /* it's possible that an upper layer has requested a connection setup or abort.
2374 * There are 2 situations where we decide to establish a new connection :
2375 * - there are data scheduled for emission in the buffer
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002376 * - the CF_AUTO_CONNECT flag is set (active connection)
Willy Tarreau520d95e2009-09-19 21:04:57 +02002377 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002378 if (si_b->state == SI_ST_INI) {
Christopher Faulet5e1a9d72019-04-23 17:34:22 +02002379 if (!(req->flags & CF_SHUTW)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002380 if ((req->flags & CF_AUTO_CONNECT) || !channel_is_empty(req)) {
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002381 /* If we have an appctx, there is no connect method, so we
2382 * immediately switch to the connected state, otherwise we
2383 * perform a connection request.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002384 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002385 si_b->state = SI_ST_REQ; /* new connection requested */
2386 si_b->conn_retries = s->be->conn_retries;
Olivier Houchard602bf7d2019-05-10 13:59:15 +02002387 if ((s->be->retry_type &~ PR_RE_CONN_FAILED) &&
2388 !(si_b->flags & SI_FL_D_L7_RETRY))
Olivier Houcharda254a372019-04-05 15:30:12 +02002389 si_b->flags |= SI_FL_L7_RETRY;
Willy Tarreau520d95e2009-09-19 21:04:57 +02002390 }
Willy Tarreau73201222009-08-16 18:27:24 +02002391 }
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002392 else {
Willy Tarreau0542c8b2017-11-24 15:01:10 +01002393 si_release_endpoint(si_b);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002394 si_b->state = SI_ST_CLO; /* shutw+ini = abort */
2395 channel_shutw_now(req); /* fix buffer flags upon abort */
2396 channel_shutr_now(res);
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002397 }
Willy Tarreau92795622009-03-06 12:51:23 +01002398 }
2399
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002400
2401 /* we may have a pending connection request, or a connection waiting
2402 * for completion.
2403 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002404 if (si_b->state >= SI_ST_REQ && si_b->state < SI_ST_CON) {
Thierry FOURNIER4834bc72015-06-06 19:29:07 +02002405
2406 /* prune the request variables and swap to the response variables. */
2407 if (s->vars_reqres.scope != SCOPE_RES) {
Willy Tarreaucda7f3f2018-10-28 13:44:36 +01002408 if (!LIST_ISEMPTY(&s->vars_reqres.head)) {
2409 vars_prune(&s->vars_reqres, s->sess, s);
2410 vars_init(&s->vars_reqres, SCOPE_RES);
2411 }
Thierry FOURNIER4834bc72015-06-06 19:29:07 +02002412 }
2413
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002414 do {
2415 /* nb: step 1 might switch from QUE to ASS, but we first want
2416 * to give a chance to step 2 to perform a redirect if needed.
2417 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002418 if (si_b->state != SI_ST_REQ)
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01002419 sess_update_stream_int(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002420 if (si_b->state == SI_ST_REQ)
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01002421 sess_prepare_conn_req(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002422
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +01002423 /* applets directly go to the ESTABLISHED state. Similarly,
2424 * servers experience the same fate when their connection
2425 * is reused.
2426 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002427 if (unlikely(si_b->state == SI_ST_EST))
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01002428 sess_establish(s);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01002429
Willy Tarreaub44c8732013-12-31 23:16:50 +01002430 /* Now we can add the server name to a header (if requested) */
2431 /* check for HTTP mode and proxy server_name_hdr_name != NULL */
Willy Tarreau9c03b332015-09-07 19:32:33 +02002432 if ((si_b->state >= SI_ST_CON) && (si_b->state < SI_ST_CLO) &&
Willy Tarreaub44c8732013-12-31 23:16:50 +01002433 (s->be->server_id_hdr_name != NULL) &&
2434 (s->be->mode == PR_MODE_HTTP) &&
2435 objt_server(s->target)) {
Christopher Faulet27a3dc82018-10-23 15:34:07 +02002436 http_send_name_header(s, s->be, objt_server(s->target)->id);
Willy Tarreau1e5dfda2013-04-07 18:19:16 +02002437 }
2438
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002439 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002440 if (si_b->state == SI_ST_ASS && srv && srv->rdr_len && (s->flags & SF_REDIRECTABLE))
Willy Tarreau8f128b42014-11-28 15:07:47 +01002441 http_perform_server_redirect(s, si_b);
2442 } while (si_b->state == SI_ST_ASS);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002443 }
2444
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002445 /* Benchmarks have shown that it's optimal to do a full resync now */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002446 if (si_f->state == SI_ST_DIS || si_b->state == SI_ST_DIS)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002447 goto resync_stream_interface;
2448
Willy Tarreau815a9b22010-07-27 17:15:12 +02002449 /* otherwise we want to check if we need to resync the req buffer or not */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002450 if ((req->flags ^ rqf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002451 goto resync_request;
2452
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002453 /* perform output updates to the response buffer */
Willy Tarreau84455332009-03-15 22:34:05 +01002454
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002455 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002456 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002457 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002458 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002459 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02002460 if (unlikely((!res->analysers || (res->analysers == AN_RES_FLT_END && !(res->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002461 !(res->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
2462 (si_b->state >= SI_ST_EST) &&
2463 (res->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002464 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002465 * attached to it. If any data are left in, we'll permit them to
2466 * move.
2467 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002468 channel_auto_read(res);
2469 channel_auto_close(res);
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002470
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002471 if (IS_HTX_STRM(s)) {
2472 struct htx *htx = htxbuf(&res->buf);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002473
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002474 /* We'll let data flow between the producer (if still connected)
2475 * to the consumer.
2476 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002477 co_set_data(res, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002478 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002479 channel_htx_forward_forever(res, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002480 }
2481 else {
2482 /* We'll let data flow between the producer (if still connected)
2483 * to the consumer.
2484 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002485 c_adv(res, ci_data(res));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002486 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2487 channel_forward_forever(res);
2488
2489 /* Just in order to support fetching HTTP contents after start
2490 * of forwarding when the HTTP forwarding analyser is not used,
2491 * we simply reset msg->sov so that HTTP rewinding points to the
2492 * headers.
2493 */
Olivier Houchard1909f6d2018-12-06 13:28:30 +01002494 if (s->txn)
2495 s->txn->rsp.sov = s->txn->rsp.eoh + s->txn->rsp.eol - co_data(res);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002496 }
Willy Tarreau42529c32015-07-09 18:38:57 +02002497
Willy Tarreauce887fd2012-05-12 12:50:00 +02002498 /* if we have no analyser anymore in any direction and have a
Willy Tarreau05cdd962014-05-10 14:30:07 +02002499 * tunnel timeout set, use it now. Note that we must respect
2500 * the half-closed timeouts as well.
Willy Tarreauce887fd2012-05-12 12:50:00 +02002501 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002502 if (!req->analysers && s->be->timeout.tunnel) {
2503 req->rto = req->wto = res->rto = res->wto =
Willy Tarreauce887fd2012-05-12 12:50:00 +02002504 s->be->timeout.tunnel;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002505
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002506 if ((req->flags & CF_SHUTR) && tick_isset(sess->fe->timeout.clientfin))
2507 res->wto = sess->fe->timeout.clientfin;
Willy Tarreau8f128b42014-11-28 15:07:47 +01002508 if ((req->flags & CF_SHUTW) && tick_isset(s->be->timeout.serverfin))
2509 res->rto = s->be->timeout.serverfin;
2510 if ((res->flags & CF_SHUTR) && tick_isset(s->be->timeout.serverfin))
2511 req->wto = s->be->timeout.serverfin;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002512 if ((res->flags & CF_SHUTW) && tick_isset(sess->fe->timeout.clientfin))
2513 req->rto = sess->fe->timeout.clientfin;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002514
Willy Tarreau8f128b42014-11-28 15:07:47 +01002515 req->rex = tick_add(now_ms, req->rto);
2516 req->wex = tick_add(now_ms, req->wto);
2517 res->rex = tick_add(now_ms, res->rto);
2518 res->wex = tick_add(now_ms, res->wto);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002519 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002520 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002521
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002522 /* check if it is wise to enable kernel splicing to forward response data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002523 if (!(res->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2524 res->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002525 (global.tune.options & GTUNE_USE_SPLICE) &&
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002526 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->snd_pipe) &&
2527 (objt_cs(si_b->end) && __objt_cs(si_b->end)->conn->xprt && __objt_cs(si_b->end)->conn->xprt->rcv_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002528 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002529 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_RTR) ||
2530 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002531 (res->flags & CF_STREAMER_FAST)))) {
2532 res->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002533 }
2534
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002535 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002536 rpf_last = res->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002537
2538 /*
2539 * Now forward all shutdown requests between both sides of the buffer
2540 */
2541
2542 /*
2543 * FIXME: this is probably where we should produce error responses.
2544 */
2545
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002546 /* first, let's check if the response buffer needs to shutdown(write) */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002547 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau05cdd962014-05-10 14:30:07 +02002548 (CF_AUTO_CLOSE|CF_SHUTR))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002549 channel_shutw_now(res);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002550 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002551
2552 /* shutdown(write) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002553 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2554 channel_is_empty(res))) {
2555 si_shutw(si_f);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002556 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002557
2558 /* shutdown(write) done on the client side, we must stop the server too */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002559 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW) &&
2560 !res->analysers)
2561 channel_shutr_now(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002562
2563 /* shutdown(read) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002564 if (unlikely((res->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2565 if (si_b->flags & SI_FL_NOHALF)
2566 si_b->flags |= SI_FL_NOLINGER;
2567 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002568 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002569
Willy Tarreau8f128b42014-11-28 15:07:47 +01002570 if (si_f->state == SI_ST_DIS || si_b->state == SI_ST_DIS)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002571 goto resync_stream_interface;
2572
Willy Tarreau8f128b42014-11-28 15:07:47 +01002573 if (req->flags != rqf_last)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002574 goto resync_request;
2575
Willy Tarreau8f128b42014-11-28 15:07:47 +01002576 if ((res->flags ^ rpf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002577 goto resync_response;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002578
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002579 /* we're interested in getting wakeups again */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002580 si_f->flags &= ~SI_FL_DONT_WAKE;
2581 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002582
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002583 /* This is needed only when debugging is enabled, to indicate
2584 * client-side or server-side close. Please note that in the unlikely
2585 * event where both sides would close at once, the sequence is reported
2586 * on the server side first.
2587 */
2588 if (unlikely((global.mode & MODE_DEBUG) &&
2589 (!(global.mode & MODE_QUIET) ||
2590 (global.mode & MODE_VERBOSE)))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002591 if (si_b->state == SI_ST_CLO &&
2592 si_b->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002593 chunk_printf(&trash, "%08x:%s.srvcls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002594 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002595 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2596 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002597 shut_your_big_mouth_gcc(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002598 }
2599
Willy Tarreau8f128b42014-11-28 15:07:47 +01002600 if (si_f->state == SI_ST_CLO &&
2601 si_f->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002602 chunk_printf(&trash, "%08x:%s.clicls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002603 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002604 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2605 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002606 shut_your_big_mouth_gcc(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002607 }
2608 }
2609
Willy Tarreau8f128b42014-11-28 15:07:47 +01002610 if (likely((si_f->state != SI_ST_CLO) ||
2611 (si_b->state > SI_ST_INI && si_b->state < SI_ST_CLO))) {
Olivier Houchard120f64a2019-04-09 19:14:59 +02002612 enum si_state si_b_prev_state, si_f_prev_state;
2613
2614 si_f_prev_state = si_f->prev_state;
2615 si_b_prev_state = si_b->prev_state;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002616
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002617 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED))
Willy Tarreau87b09662015-04-03 00:22:06 +02002618 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002619
Willy Tarreaua689c3d2019-06-03 17:27:52 +02002620 /* take the exact same flags si_update_both() will have before
2621 * trying to update again.
2622 */
2623 rqf_last = req->flags & ~(CF_READ_NULL|CF_READ_PARTIAL|CF_READ_ATTACHED|CF_WRITE_NULL|CF_WRITE_PARTIAL);
2624 rpf_last = res->flags & ~(CF_READ_NULL|CF_READ_PARTIAL|CF_READ_ATTACHED|CF_WRITE_NULL|CF_WRITE_PARTIAL);
2625
Willy Tarreaud14844a2018-11-08 18:15:29 +01002626 si_update_both(si_f, si_b);
Olivier Houchard53216e72018-10-10 15:46:36 +02002627
Willy Tarreaua689c3d2019-06-03 17:27:52 +02002628 /* changes requiring immediate attention are processed right now */
Olivier Houchard120f64a2019-04-09 19:14:59 +02002629 if (si_f->state == SI_ST_DIS || si_f->state != si_f_prev_state ||
2630 si_b->state == SI_ST_DIS || si_b->state != si_b_prev_state ||
Olivier Houchard56897e22019-04-10 13:51:37 +02002631 ((si_f->flags & SI_FL_ERR) && si_f->state != SI_ST_CLO) ||
Willy Tarreaua689c3d2019-06-03 17:27:52 +02002632 ((si_b->flags & SI_FL_ERR) && si_b->state != SI_ST_CLO))
Olivier Houchard53216e72018-10-10 15:46:36 +02002633 goto redo;
2634
Willy Tarreaua689c3d2019-06-03 17:27:52 +02002635 /* I/O events (mostly CF_WRITE_PARTIAL) are aggregated with other I/Os */
2636 if (((req->flags ^ rqf_last) | (res->flags ^ rpf_last)) & CF_MASK_ANALYSER)
2637 task_wakeup(s->task, TASK_WOKEN_IO);
2638
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002639 /* Trick: if a request is being waiting for the server to respond,
2640 * and if we know the server can timeout, we don't want the timeout
2641 * to expire on the client side first, but we're still interested
2642 * in passing data from the client to the server (eg: POST). Thus,
2643 * we can cancel the client's request timeout if the server's
2644 * request timeout is set and the server has not yet sent a response.
2645 */
2646
Willy Tarreau8f128b42014-11-28 15:07:47 +01002647 if ((res->flags & (CF_AUTO_CLOSE|CF_SHUTR)) == 0 &&
2648 (tick_isset(req->wex) || tick_isset(res->rex))) {
2649 req->flags |= CF_READ_NOEXP;
2650 req->rex = TICK_ETERNITY;
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002651 }
2652
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002653 /* Reset pending events now */
2654 s->pending_events = 0;
2655
Willy Tarreau798f4322012-11-08 14:49:17 +01002656 update_exp_and_leave:
Willy Tarreau5fb04712016-05-04 10:18:37 +02002657 /* Note: please ensure that if you branch here you disable SI_FL_DONT_WAKE */
Christopher Fauleta00d8172016-11-10 14:58:05 +01002658 t->expire = tick_first((tick_is_expired(t->expire, now_ms) ? 0 : t->expire),
2659 tick_first(tick_first(req->rex, req->wex),
2660 tick_first(res->rex, res->wex)));
Willy Tarreaudef0d222016-11-08 22:03:00 +01002661 if (!req->analysers)
2662 req->analyse_exp = TICK_ETERNITY;
2663
2664 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED) &&
2665 (!tick_isset(req->analyse_exp) || tick_is_expired(req->analyse_exp, now_ms)))
2666 req->analyse_exp = tick_add(now_ms, 5000);
2667
2668 t->expire = tick_first(t->expire, req->analyse_exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002669
Willy Tarreau9a398be2017-11-10 17:14:23 +01002670 t->expire = tick_first(t->expire, res->analyse_exp);
2671
Willy Tarreau8f128b42014-11-28 15:07:47 +01002672 if (si_f->exp)
2673 t->expire = tick_first(t->expire, si_f->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002674
Willy Tarreau8f128b42014-11-28 15:07:47 +01002675 if (si_b->exp)
2676 t->expire = tick_first(t->expire, si_b->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002677
Christopher Faulet56803b12017-11-24 16:06:18 +01002678 DPRINTF(stderr,
Willy Tarreau127334e2009-03-28 10:47:26 +01002679 "[%u] queuing with exp=%u req->rex=%u req->wex=%u req->ana_exp=%u"
2680 " rep->rex=%u rep->wex=%u, si[0].exp=%u, si[1].exp=%u, cs=%d, ss=%d\n",
Willy Tarreau8f128b42014-11-28 15:07:47 +01002681 now_ms, t->expire, req->rex, req->wex, req->analyse_exp,
2682 res->rex, res->wex, si_f->exp, si_b->exp, si_f->state, si_b->state);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002683
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002684 s->pending_events &= ~(TASK_WOKEN_TIMER | TASK_WOKEN_RES);
Willy Tarreau87b09662015-04-03 00:22:06 +02002685 stream_release_buffers(s);
Willy Tarreau26c25062009-03-08 09:38:41 +01002686 return t; /* nothing more to do */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002687 }
2688
Willy Tarreaue7dff022015-04-03 01:14:29 +02002689 if (s->flags & SF_BE_ASSIGNED)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002690 _HA_ATOMIC_SUB(&s->be->beconn, 1);
Willy Tarreau6f5e4b92017-09-15 09:07:56 +02002691
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002692 if (unlikely((global.mode & MODE_DEBUG) &&
2693 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)))) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002694 chunk_printf(&trash, "%08x:%s.closed[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002695 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002696 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2697 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002698 shut_your_big_mouth_gcc(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002699 }
2700
2701 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau87b09662015-04-03 00:22:06 +02002702 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002703
Willy Tarreaueee5b512015-04-03 23:46:31 +02002704 if (s->txn && s->txn->status) {
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002705 int n;
2706
Willy Tarreaueee5b512015-04-03 23:46:31 +02002707 n = s->txn->status / 100;
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002708 if (n < 1 || n > 5)
2709 n = 0;
2710
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002711 if (sess->fe->mode == PR_MODE_HTTP) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002712 _HA_ATOMIC_ADD(&sess->fe->fe_counters.p.http.rsp[n], 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002713 }
Willy Tarreaue7dff022015-04-03 01:14:29 +02002714 if ((s->flags & SF_BE_ASSIGNED) &&
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002715 (s->be->mode == PR_MODE_HTTP)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002716 _HA_ATOMIC_ADD(&s->be->be_counters.p.http.rsp[n], 1);
2717 _HA_ATOMIC_ADD(&s->be->be_counters.p.http.cum_req, 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002718 }
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002719 }
2720
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002721 /* let's do a final log if we need it */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002722 if (!LIST_ISEMPTY(&sess->fe->logformat) && s->logs.logwait &&
Willy Tarreaue7dff022015-04-03 01:14:29 +02002723 !(s->flags & SF_MONITOR) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002724 (!(sess->fe->options & PR_O_NULLNOLOG) || req->total)) {
Willy Tarreau66425e32018-07-25 06:55:12 +02002725 /* we may need to know the position in the queue */
2726 pendconn_free(s);
Willy Tarreaua5555ec2008-11-30 19:02:32 +01002727 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002728 }
2729
Willy Tarreau87b09662015-04-03 00:22:06 +02002730 /* update time stats for this stream */
2731 stream_update_time_stats(s);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002732
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002733 /* the task MUST not be in the run queue anymore */
Willy Tarreau87b09662015-04-03 00:22:06 +02002734 stream_free(s);
Olivier Houchard3f795f72019-04-17 22:51:06 +02002735 task_destroy(t);
Willy Tarreau26c25062009-03-08 09:38:41 +01002736 return NULL;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002737}
2738
Willy Tarreau87b09662015-04-03 00:22:06 +02002739/* Update the stream's backend and server time stats */
2740void stream_update_time_stats(struct stream *s)
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002741{
2742 int t_request;
2743 int t_queue;
2744 int t_connect;
2745 int t_data;
2746 int t_close;
2747 struct server *srv;
2748
2749 t_request = 0;
2750 t_queue = s->logs.t_queue;
2751 t_connect = s->logs.t_connect;
2752 t_close = s->logs.t_close;
2753 t_data = s->logs.t_data;
2754
2755 if (s->be->mode != PR_MODE_HTTP)
2756 t_data = t_connect;
2757
2758 if (t_connect < 0 || t_data < 0)
2759 return;
2760
2761 if (tv_isge(&s->logs.tv_request, &s->logs.tv_accept))
2762 t_request = tv_ms_elapsed(&s->logs.tv_accept, &s->logs.tv_request);
2763
2764 t_data -= t_connect;
2765 t_connect -= t_queue;
2766 t_queue -= t_request;
2767
2768 srv = objt_server(s->target);
2769 if (srv) {
2770 swrate_add(&srv->counters.q_time, TIME_STATS_SAMPLES, t_queue);
2771 swrate_add(&srv->counters.c_time, TIME_STATS_SAMPLES, t_connect);
2772 swrate_add(&srv->counters.d_time, TIME_STATS_SAMPLES, t_data);
2773 swrate_add(&srv->counters.t_time, TIME_STATS_SAMPLES, t_close);
2774 }
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002775 HA_SPIN_LOCK(PROXY_LOCK, &s->be->lock);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002776 swrate_add(&s->be->be_counters.q_time, TIME_STATS_SAMPLES, t_queue);
2777 swrate_add(&s->be->be_counters.c_time, TIME_STATS_SAMPLES, t_connect);
2778 swrate_add(&s->be->be_counters.d_time, TIME_STATS_SAMPLES, t_data);
2779 swrate_add(&s->be->be_counters.t_time, TIME_STATS_SAMPLES, t_close);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002780 HA_SPIN_UNLOCK(PROXY_LOCK, &s->be->lock);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002781}
2782
Willy Tarreau7c669d72008-06-20 15:04:11 +02002783/*
2784 * This function adjusts sess->srv_conn and maintains the previous and new
Willy Tarreau87b09662015-04-03 00:22:06 +02002785 * server's served stream counts. Setting newsrv to NULL is enough to release
Willy Tarreau7c669d72008-06-20 15:04:11 +02002786 * current connection slot. This function also notifies any LB algo which might
Willy Tarreau87b09662015-04-03 00:22:06 +02002787 * expect to be informed about any change in the number of active streams on a
Willy Tarreau7c669d72008-06-20 15:04:11 +02002788 * server.
2789 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002790void sess_change_server(struct stream *sess, struct server *newsrv)
Willy Tarreau7c669d72008-06-20 15:04:11 +02002791{
2792 if (sess->srv_conn == newsrv)
2793 return;
2794
2795 if (sess->srv_conn) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002796 _HA_ATOMIC_SUB(&sess->srv_conn->served, 1);
2797 _HA_ATOMIC_SUB(&sess->srv_conn->proxy->served, 1);
2798 __ha_barrier_atomic_store();
Willy Tarreau7c669d72008-06-20 15:04:11 +02002799 if (sess->srv_conn->proxy->lbprm.server_drop_conn)
2800 sess->srv_conn->proxy->lbprm.server_drop_conn(sess->srv_conn);
Willy Tarreau87b09662015-04-03 00:22:06 +02002801 stream_del_srv_conn(sess);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002802 }
2803
2804 if (newsrv) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002805 _HA_ATOMIC_ADD(&newsrv->served, 1);
2806 _HA_ATOMIC_ADD(&newsrv->proxy->served, 1);
2807 __ha_barrier_atomic_store();
Willy Tarreau7c669d72008-06-20 15:04:11 +02002808 if (newsrv->proxy->lbprm.server_take_conn)
2809 newsrv->proxy->lbprm.server_take_conn(newsrv);
Willy Tarreau87b09662015-04-03 00:22:06 +02002810 stream_add_srv_conn(sess, newsrv);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002811 }
2812}
2813
Willy Tarreau84455332009-03-15 22:34:05 +01002814/* Handle server-side errors for default protocols. It is called whenever a a
2815 * connection setup is aborted or a request is aborted in queue. It sets the
Willy Tarreau87b09662015-04-03 00:22:06 +02002816 * stream termination flags so that the caller does not have to worry about
Willy Tarreau84455332009-03-15 22:34:05 +01002817 * them. It's installed as ->srv_error for the server-side stream_interface.
2818 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002819void default_srv_error(struct stream *s, struct stream_interface *si)
Willy Tarreau84455332009-03-15 22:34:05 +01002820{
2821 int err_type = si->err_type;
2822 int err = 0, fin = 0;
2823
2824 if (err_type & SI_ET_QUEUE_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002825 err = SF_ERR_CLICL;
2826 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002827 }
2828 else if (err_type & SI_ET_CONN_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002829 err = SF_ERR_CLICL;
2830 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002831 }
2832 else if (err_type & SI_ET_QUEUE_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002833 err = SF_ERR_SRVTO;
2834 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002835 }
2836 else if (err_type & SI_ET_QUEUE_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002837 err = SF_ERR_SRVCL;
2838 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002839 }
2840 else if (err_type & SI_ET_CONN_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002841 err = SF_ERR_SRVTO;
2842 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002843 }
2844 else if (err_type & SI_ET_CONN_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002845 err = SF_ERR_SRVCL;
2846 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002847 }
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002848 else if (err_type & SI_ET_CONN_RES) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002849 err = SF_ERR_RESOURCE;
2850 fin = SF_FINST_C;
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002851 }
Willy Tarreau84455332009-03-15 22:34:05 +01002852 else /* SI_ET_CONN_OTHER and others */ {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002853 err = SF_ERR_INTERNAL;
2854 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002855 }
2856
Willy Tarreaue7dff022015-04-03 01:14:29 +02002857 if (!(s->flags & SF_ERR_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002858 s->flags |= err;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002859 if (!(s->flags & SF_FINST_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002860 s->flags |= fin;
2861}
Willy Tarreau7c669d72008-06-20 15:04:11 +02002862
Willy Tarreaue7dff022015-04-03 01:14:29 +02002863/* kill a stream and set the termination flags to <why> (one of SF_ERR_*) */
Willy Tarreau87b09662015-04-03 00:22:06 +02002864void stream_shutdown(struct stream *stream, int why)
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002865{
Willy Tarreau87b09662015-04-03 00:22:06 +02002866 if (stream->req.flags & (CF_SHUTW|CF_SHUTW_NOW))
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002867 return;
2868
Willy Tarreau87b09662015-04-03 00:22:06 +02002869 channel_shutw_now(&stream->req);
2870 channel_shutr_now(&stream->res);
2871 stream->task->nice = 1024;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002872 if (!(stream->flags & SF_ERR_MASK))
Willy Tarreau87b09662015-04-03 00:22:06 +02002873 stream->flags |= why;
2874 task_wakeup(stream->task, TASK_WOKEN_OTHER);
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002875}
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02002876
Willy Tarreau5484d582019-05-22 09:33:03 +02002877/* Appends a dump of the state of stream <s> into buffer <buf> which must have
2878 * preliminary be prepared by its caller, with each line prepended by prefix
2879 * <pfx>, and each line terminated by character <eol>.
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002880 */
Willy Tarreau5484d582019-05-22 09:33:03 +02002881void stream_dump(struct buffer *buf, const struct stream *s, const char *pfx, char eol)
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002882{
2883 const struct conn_stream *csf, *csb;
2884 const struct connection *cof, *cob;
2885 const struct appctx *acf, *acb;
2886 const struct server *srv;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002887 const char *src = "unknown";
2888 const char *dst = "unknown";
2889 char pn[INET6_ADDRSTRLEN];
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002890 const struct channel *req, *res;
2891 const struct stream_interface *si_f, *si_b;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002892
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002893 if (!s) {
Willy Tarreau5484d582019-05-22 09:33:03 +02002894 chunk_appendf(buf, "%sstrm=%p%c", pfx, s, eol);
2895 return;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002896 }
2897
Willy Tarreau5484d582019-05-22 09:33:03 +02002898 if (s->obj_type != OBJ_TYPE_STREAM) {
2899 chunk_appendf(buf, "%sstrm=%p [invalid type=%d(%s)]%c",
2900 pfx, s, s->obj_type, obj_type_name(&s->obj_type), eol);
2901 return;
2902 }
2903
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002904 si_f = &s->si[0];
2905 si_b = &s->si[1];
2906 req = &s->req;
2907 res = &s->res;
2908
2909 csf = objt_cs(si_f->end);
2910 cof = cs_conn(csf);
2911 acf = objt_appctx(si_f->end);
2912 if (cof && addr_to_str(&cof->addr.from, pn, sizeof(pn)) >= 0)
2913 src = pn;
2914 else if (acf)
2915 src = acf->applet->name;
2916
2917 csb = objt_cs(si_b->end);
2918 cob = cs_conn(csb);
2919 acb = objt_appctx(si_b->end);
2920 srv = objt_server(s->target);
2921 if (srv)
2922 dst = srv->id;
2923 else if (acb)
2924 dst = acb->applet->name;
2925
Willy Tarreau5484d582019-05-22 09:33:03 +02002926 chunk_appendf(buf,
2927 "%sstrm=%p src=%s fe=%s be=%s dst=%s%c"
2928 "%srqf=%x rqa=%x rpf=%x rpa=%x sif=%s,%x sib=%s,%x%c"
2929 "%saf=%p,%u csf=%p,%x%c"
2930 "%sab=%p,%u csb=%p,%x%c"
2931 "%scof=%p,%x:%s(%p)/%s(%p)/%s(%d)%c"
2932 "%scob=%p,%x:%s(%p)/%s(%p)/%s(%d)%c"
2933 "",
2934 pfx, s, src, s->sess->fe->id, s->be->id, dst, eol,
2935 pfx, req->flags, req->analysers, res->flags, res->analysers,
2936 si_state_str(si_f->state), si_f->flags,
2937 si_state_str(si_b->state), si_b->flags, eol,
2938 pfx, acf, acf ? acf->st0 : 0, csf, csf ? csf->flags : 0, eol,
2939 pfx, acb, acb ? acb->st0 : 0, csb, csb ? csb->flags : 0, eol,
2940 pfx, cof, cof ? cof->flags : 0, conn_get_mux_name(cof), cof?cof->ctx:0, conn_get_xprt_name(cof),
2941 cof ? cof->xprt_ctx : 0, conn_get_ctrl_name(cof), cof ? cof->handle.fd : 0, eol,
2942 pfx, cob, cob ? cob->flags : 0, conn_get_mux_name(cob), cob?cob->ctx:0, conn_get_xprt_name(cob),
2943 cob ? cob->xprt_ctx : 0, conn_get_ctrl_name(cob), cob ? cob->handle.fd : 0, eol);
2944}
2945
2946/* dumps an error message for type <type> at ptr <ptr> related to stream <s>,
Willy Tarreaub106ce12019-05-22 08:57:01 +02002947 * having reached loop rate <rate>, then aborts hoping to retrieve a core.
Willy Tarreau5484d582019-05-22 09:33:03 +02002948 */
2949void stream_dump_and_crash(enum obj_type *obj, int rate)
2950{
2951 const struct stream *s;
Willy Tarreau5484d582019-05-22 09:33:03 +02002952 char *msg = NULL;
2953 const void *ptr;
2954
2955 ptr = s = objt_stream(obj);
2956 if (!s) {
2957 const struct appctx *appctx = objt_appctx(obj);
2958 if (!appctx)
2959 return;
2960 ptr = appctx;
2961 s = si_strm(appctx->owner);
2962 if (!s)
2963 return;
2964 }
2965
Willy Tarreau5484d582019-05-22 09:33:03 +02002966 chunk_reset(&trash);
2967 stream_dump(&trash, s, "", ' ');
Willy Tarreaub106ce12019-05-22 08:57:01 +02002968 memprintf(&msg,
2969 "A bogus %s [%p] is spinning at %d calls per second and refuses to die, "
2970 "aborting now! Please report this error to developers "
2971 "[%s]\n",
Willy Tarreau5484d582019-05-22 09:33:03 +02002972 obj_type_name(obj), ptr, rate, trash.area);
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002973
2974 ha_alert("%s", msg);
2975 send_log(NULL, LOG_EMERG, "%s", msg);
2976 abort();
2977}
2978
Willy Tarreau8b22a712010-06-18 17:46:06 +02002979/************************************************************************/
2980/* All supported ACL keywords must be declared here. */
2981/************************************************************************/
2982
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02002983/* 0=OK, <0=Alert, >0=Warning */
2984static enum act_parse_ret stream_parse_use_service(const char **args, int *cur_arg,
2985 struct proxy *px, struct act_rule *rule,
2986 char **err)
2987{
2988 struct action_kw *kw;
2989
2990 /* Check if the service name exists. */
2991 if (*(args[*cur_arg]) == 0) {
2992 memprintf(err, "'%s' expects a service name.", args[0]);
Thierry FOURNIER337eae12015-11-26 19:48:04 +01002993 return ACT_RET_PRS_ERR;
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02002994 }
2995
2996 /* lookup for keyword corresponding to a service. */
2997 kw = action_lookup(&service_keywords, args[*cur_arg]);
2998 if (!kw) {
2999 memprintf(err, "'%s' unknown service name.", args[1]);
3000 return ACT_RET_PRS_ERR;
3001 }
3002 (*cur_arg)++;
3003
3004 /* executes specific rule parser. */
3005 rule->kw = kw;
3006 if (kw->parse((const char **)args, cur_arg, px, rule, err) == ACT_RET_PRS_ERR)
3007 return ACT_RET_PRS_ERR;
3008
3009 /* Register processing function. */
3010 rule->action_ptr = process_use_service;
3011 rule->action = ACT_CUSTOM;
3012
3013 return ACT_RET_PRS_OK;
3014}
3015
3016void service_keywords_register(struct action_kw_list *kw_list)
3017{
3018 LIST_ADDQ(&service_keywords, &kw_list->list);
3019}
3020
Willy Tarreau679bba12019-03-19 08:08:10 +01003021/* Lists the known services on <out> */
3022void list_services(FILE *out)
3023{
3024 struct action_kw_list *kw_list;
3025 int found = 0;
3026 int i;
3027
3028 fprintf(out, "Available services :");
3029 list_for_each_entry(kw_list, &service_keywords, list) {
3030 for (i = 0; kw_list->kw[i].kw != NULL; i++) {
3031 if (!found)
3032 fputc('\n', out);
3033 found = 1;
3034 fprintf(out, "\t%s\n", kw_list->kw[i].kw);
3035 }
3036 }
3037 if (!found)
3038 fprintf(out, " none\n");
3039}
William Lallemand4c5b4d52016-11-21 08:51:11 +01003040
3041/* This function dumps a complete stream state onto the stream interface's
3042 * read buffer. The stream has to be set in strm. It returns 0 if the output
3043 * buffer is full and it needs to be called again, otherwise non-zero. It is
3044 * designed to be called from stats_dump_strm_to_buffer() below.
3045 */
3046static int stats_dump_full_strm_to_buffer(struct stream_interface *si, struct stream *strm)
3047{
3048 struct appctx *appctx = __objt_appctx(si->end);
3049 struct tm tm;
3050 extern const char *monthname[12];
3051 char pn[INET6_ADDRSTRLEN];
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003052 struct conn_stream *cs;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003053 struct connection *conn;
3054 struct appctx *tmpctx;
3055
3056 chunk_reset(&trash);
3057
3058 if (appctx->ctx.sess.section > 0 && appctx->ctx.sess.uid != strm->uniq_id) {
3059 /* stream changed, no need to go any further */
3060 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
Willy Tarreaue6e52362019-01-04 17:42:57 +01003061 if (ci_putchk(si_ic(si), &trash) == -1)
3062 goto full;
3063 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003064 }
3065
3066 switch (appctx->ctx.sess.section) {
3067 case 0: /* main status of the stream */
3068 appctx->ctx.sess.uid = strm->uniq_id;
3069 appctx->ctx.sess.section = 1;
3070 /* fall through */
3071
3072 case 1:
3073 get_localtime(strm->logs.accept_date.tv_sec, &tm);
3074 chunk_appendf(&trash,
3075 "%p: [%02d/%s/%04d:%02d:%02d:%02d.%06d] id=%u proto=%s",
3076 strm,
3077 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
3078 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(strm->logs.accept_date.tv_usec),
3079 strm->uniq_id,
3080 strm_li(strm) ? strm_li(strm)->proto->name : "?");
3081
3082 conn = objt_conn(strm_orig(strm));
3083 switch (conn ? addr_to_str(&conn->addr.from, pn, sizeof(pn)) : AF_UNSPEC) {
3084 case AF_INET:
3085 case AF_INET6:
3086 chunk_appendf(&trash, " source=%s:%d\n",
3087 pn, get_host_port(&conn->addr.from));
3088 break;
3089 case AF_UNIX:
3090 chunk_appendf(&trash, " source=unix:%d\n", strm_li(strm)->luid);
3091 break;
3092 default:
3093 /* no more information to print right now */
3094 chunk_appendf(&trash, "\n");
3095 break;
3096 }
3097
3098 chunk_appendf(&trash,
Willy Tarreauadf7a152019-01-07 10:10:07 +01003099 " flags=0x%x, conn_retries=%d, srv_conn=%p, pend_pos=%p waiting=%d\n",
3100 strm->flags, strm->si[1].conn_retries, strm->srv_conn, strm->pend_pos,
3101 !LIST_ISEMPTY(&strm->buffer_wait.list));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003102
3103 chunk_appendf(&trash,
3104 " frontend=%s (id=%u mode=%s), listener=%s (id=%u)",
3105 strm_fe(strm)->id, strm_fe(strm)->uuid, strm_fe(strm)->mode ? "http" : "tcp",
3106 strm_li(strm) ? strm_li(strm)->name ? strm_li(strm)->name : "?" : "?",
3107 strm_li(strm) ? strm_li(strm)->luid : 0);
3108
3109 if (conn)
3110 conn_get_to_addr(conn);
3111
3112 switch (conn ? addr_to_str(&conn->addr.to, pn, sizeof(pn)) : AF_UNSPEC) {
3113 case AF_INET:
3114 case AF_INET6:
3115 chunk_appendf(&trash, " addr=%s:%d\n",
3116 pn, get_host_port(&conn->addr.to));
3117 break;
3118 case AF_UNIX:
3119 chunk_appendf(&trash, " addr=unix:%d\n", strm_li(strm)->luid);
3120 break;
3121 default:
3122 /* no more information to print right now */
3123 chunk_appendf(&trash, "\n");
3124 break;
3125 }
3126
3127 if (strm->be->cap & PR_CAP_BE)
3128 chunk_appendf(&trash,
3129 " backend=%s (id=%u mode=%s)",
3130 strm->be->id,
3131 strm->be->uuid, strm->be->mode ? "http" : "tcp");
3132 else
3133 chunk_appendf(&trash, " backend=<NONE> (id=-1 mode=-)");
3134
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003135 cs = objt_cs(strm->si[1].end);
3136 conn = cs_conn(cs);
3137
William Lallemand4c5b4d52016-11-21 08:51:11 +01003138 if (conn)
3139 conn_get_from_addr(conn);
3140
3141 switch (conn ? addr_to_str(&conn->addr.from, pn, sizeof(pn)) : AF_UNSPEC) {
3142 case AF_INET:
3143 case AF_INET6:
3144 chunk_appendf(&trash, " addr=%s:%d\n",
3145 pn, get_host_port(&conn->addr.from));
3146 break;
3147 case AF_UNIX:
3148 chunk_appendf(&trash, " addr=unix\n");
3149 break;
3150 default:
3151 /* no more information to print right now */
3152 chunk_appendf(&trash, "\n");
3153 break;
3154 }
3155
3156 if (strm->be->cap & PR_CAP_BE)
3157 chunk_appendf(&trash,
3158 " server=%s (id=%u)",
3159 objt_server(strm->target) ? objt_server(strm->target)->id : "<none>",
3160 objt_server(strm->target) ? objt_server(strm->target)->puid : 0);
3161 else
3162 chunk_appendf(&trash, " server=<NONE> (id=-1)");
3163
3164 if (conn)
3165 conn_get_to_addr(conn);
3166
3167 switch (conn ? addr_to_str(&conn->addr.to, pn, sizeof(pn)) : AF_UNSPEC) {
3168 case AF_INET:
3169 case AF_INET6:
3170 chunk_appendf(&trash, " addr=%s:%d\n",
3171 pn, get_host_port(&conn->addr.to));
3172 break;
3173 case AF_UNIX:
3174 chunk_appendf(&trash, " addr=unix\n");
3175 break;
3176 default:
3177 /* no more information to print right now */
3178 chunk_appendf(&trash, "\n");
3179 break;
3180 }
3181
3182 chunk_appendf(&trash,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003183 " task=%p (state=0x%02x nice=%d calls=%u rate=%u exp=%s tmask=0x%lx%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003184 strm->task,
3185 strm->task->state,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003186 strm->task->nice, strm->task->calls, read_freq_ctr(&strm->call_rate),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003187 strm->task->expire ?
3188 tick_is_expired(strm->task->expire, now_ms) ? "<PAST>" :
3189 human_time(TICKS_TO_MS(strm->task->expire - now_ms),
3190 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Fauletf0205062017-11-15 20:56:43 +01003191 strm->task->thread_mask,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003192 task_in_rq(strm->task) ? ", running" : "");
3193
3194 chunk_appendf(&trash,
3195 " age=%s)\n",
3196 human_time(now.tv_sec - strm->logs.accept_date.tv_sec, 1));
3197
3198 if (strm->txn)
3199 chunk_appendf(&trash,
Willy Tarreau7778b592019-01-07 10:38:10 +01003200 " txn=%p flags=0x%x meth=%d status=%d req.st=%s rsp.st=%s\n"
3201 " req.f=0x%02x blen=%llu chnk=%llu next=%u\n"
3202 " rsp.f=0x%02x blen=%llu chnk=%llu next=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003203 strm->txn, strm->txn->flags, strm->txn->meth, strm->txn->status,
Willy Tarreau7778b592019-01-07 10:38:10 +01003204 h1_msg_state_str(strm->txn->req.msg_state), h1_msg_state_str(strm->txn->rsp.msg_state),
3205 strm->txn->req.flags, strm->txn->req.body_len, strm->txn->req.chunk_len, strm->txn->req.next,
3206 strm->txn->rsp.flags, strm->txn->rsp.body_len, strm->txn->rsp.chunk_len, strm->txn->rsp.next);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003207
3208 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01003209 " si[0]=%p (state=%s flags=0x%02x endp0=%s:%p exp=%s et=0x%03x sub=%d)\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003210 &strm->si[0],
3211 si_state_str(strm->si[0].state),
3212 strm->si[0].flags,
3213 obj_type_name(strm->si[0].end),
3214 obj_base_ptr(strm->si[0].end),
3215 strm->si[0].exp ?
3216 tick_is_expired(strm->si[0].exp, now_ms) ? "<PAST>" :
3217 human_time(TICKS_TO_MS(strm->si[0].exp - now_ms),
3218 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01003219 strm->si[0].err_type, strm->si[0].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003220
3221 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01003222 " si[1]=%p (state=%s flags=0x%02x endp1=%s:%p exp=%s et=0x%03x sub=%d)\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003223 &strm->si[1],
3224 si_state_str(strm->si[1].state),
3225 strm->si[1].flags,
3226 obj_type_name(strm->si[1].end),
3227 obj_base_ptr(strm->si[1].end),
3228 strm->si[1].exp ?
3229 tick_is_expired(strm->si[1].exp, now_ms) ? "<PAST>" :
3230 human_time(TICKS_TO_MS(strm->si[1].exp - now_ms),
3231 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01003232 strm->si[1].err_type, strm->si[1].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003233
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003234 if ((cs = objt_cs(strm->si[0].end)) != NULL) {
3235 conn = cs->conn;
3236
William Lallemand4c5b4d52016-11-21 08:51:11 +01003237 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02003238 " co0=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003239 conn,
3240 conn_get_ctrl_name(conn),
3241 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02003242 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003243 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003244 obj_type_name(conn->target),
3245 obj_base_ptr(conn->target));
3246
3247 chunk_appendf(&trash,
Christopher Fauletf0205062017-11-15 20:56:43 +01003248 " flags=0x%08x fd=%d fd.state=%02x fd.cache=%d updt=%d fd.tmask=0x%lx\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003249 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003250 conn->handle.fd,
3251 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Olivier Houchard12568362018-01-31 18:07:29 +01003252 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].cache.next >= -2 : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01003253 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01003254 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01003255
3256 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003257 }
3258 else if ((tmpctx = objt_appctx(strm->si[0].end)) != NULL) {
3259 chunk_appendf(&trash,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003260 " app0=%p st0=%d st1=%d st2=%d applet=%s tmask=0x%lx nice=%d calls=%u rate=%u cpu=%llu lat=%llu\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003261 tmpctx,
3262 tmpctx->st0,
3263 tmpctx->st1,
3264 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01003265 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02003266 tmpctx->thread_mask,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003267 tmpctx->t->nice, tmpctx->t->calls, read_freq_ctr(&tmpctx->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003268 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003269 }
3270
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003271 if ((cs = objt_cs(strm->si[1].end)) != NULL) {
3272 conn = cs->conn;
3273
William Lallemand4c5b4d52016-11-21 08:51:11 +01003274 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02003275 " co1=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003276 conn,
3277 conn_get_ctrl_name(conn),
3278 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02003279 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003280 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003281 obj_type_name(conn->target),
3282 obj_base_ptr(conn->target));
3283
3284 chunk_appendf(&trash,
Christopher Fauletf0205062017-11-15 20:56:43 +01003285 " flags=0x%08x fd=%d fd.state=%02x fd.cache=%d updt=%d fd.tmask=0x%lx\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003286 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003287 conn->handle.fd,
3288 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Olivier Houchard12568362018-01-31 18:07:29 +01003289 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].cache.next >= -2 : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01003290 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01003291 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01003292
3293 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003294 }
3295 else if ((tmpctx = objt_appctx(strm->si[1].end)) != NULL) {
3296 chunk_appendf(&trash,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003297 " app1=%p st0=%d st1=%d st2=%d applet=%s tmask=0x%lx nice=%d calls=%u rate=%u cpu=%llu lat=%llu\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003298 tmpctx,
3299 tmpctx->st0,
3300 tmpctx->st1,
3301 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01003302 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02003303 tmpctx->thread_mask,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003304 tmpctx->t->nice, tmpctx->t->calls, read_freq_ctr(&tmpctx->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003305 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003306 }
3307
3308 chunk_appendf(&trash,
3309 " req=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
3310 " an_exp=%s",
3311 &strm->req,
3312 strm->req.flags, strm->req.analysers,
3313 strm->req.pipe ? strm->req.pipe->data : 0,
3314 strm->req.to_forward, strm->req.total,
3315 strm->req.analyse_exp ?
3316 human_time(TICKS_TO_MS(strm->req.analyse_exp - now_ms),
3317 TICKS_TO_MS(1000)) : "<NEVER>");
3318
3319 chunk_appendf(&trash,
3320 " rex=%s",
3321 strm->req.rex ?
3322 human_time(TICKS_TO_MS(strm->req.rex - now_ms),
3323 TICKS_TO_MS(1000)) : "<NEVER>");
3324
3325 chunk_appendf(&trash,
3326 " wex=%s\n"
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003327 " buf=%p data=%p o=%u p=%u req.next=%d i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003328 strm->req.wex ?
3329 human_time(TICKS_TO_MS(strm->req.wex - now_ms),
3330 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003331 &strm->req.buf,
3332 b_orig(&strm->req.buf), (unsigned int)co_data(&strm->req),
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003333 (unsigned int)ci_head_ofs(&strm->req),
Willy Tarreau591d4452018-06-15 17:21:00 +02003334 strm->txn ? strm->txn->req.next : 0, (unsigned int)ci_data(&strm->req),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003335 (unsigned int)strm->req.buf.size);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003336
Christopher Fauletb9af8812019-01-04 14:30:44 +01003337 if (IS_HTX_STRM(strm)) {
3338 struct htx *htx = htxbuf(&strm->req.buf);
3339
3340 chunk_appendf(&trash,
Willy Tarreaub84e67f2019-01-07 10:01:34 +01003341 " htx=%p flags=0x%x size=%u data=%u used=%u wrap=%s extra=%llu\n",
3342 htx, htx->flags, htx->size, htx->data, htx->used,
Christopher Faulet28f29c72019-04-30 17:55:45 +02003343 (htx->tail >= htx->head) ? "NO" : "YES",
Christopher Fauletb9af8812019-01-04 14:30:44 +01003344 (unsigned long long)htx->extra);
3345 }
3346
William Lallemand4c5b4d52016-11-21 08:51:11 +01003347 chunk_appendf(&trash,
3348 " res=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
3349 " an_exp=%s",
3350 &strm->res,
3351 strm->res.flags, strm->res.analysers,
3352 strm->res.pipe ? strm->res.pipe->data : 0,
3353 strm->res.to_forward, strm->res.total,
3354 strm->res.analyse_exp ?
3355 human_time(TICKS_TO_MS(strm->res.analyse_exp - now_ms),
3356 TICKS_TO_MS(1000)) : "<NEVER>");
3357
3358 chunk_appendf(&trash,
3359 " rex=%s",
3360 strm->res.rex ?
3361 human_time(TICKS_TO_MS(strm->res.rex - now_ms),
3362 TICKS_TO_MS(1000)) : "<NEVER>");
3363
3364 chunk_appendf(&trash,
3365 " wex=%s\n"
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003366 " buf=%p data=%p o=%u p=%u rsp.next=%d i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003367 strm->res.wex ?
3368 human_time(TICKS_TO_MS(strm->res.wex - now_ms),
3369 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003370 &strm->res.buf,
3371 b_orig(&strm->res.buf), (unsigned int)co_data(&strm->res),
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003372 (unsigned int)ci_head_ofs(&strm->res),
Willy Tarreau591d4452018-06-15 17:21:00 +02003373 strm->txn ? strm->txn->rsp.next : 0, (unsigned int)ci_data(&strm->res),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003374 (unsigned int)strm->res.buf.size);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003375
Christopher Fauletb9af8812019-01-04 14:30:44 +01003376 if (IS_HTX_STRM(strm)) {
3377 struct htx *htx = htxbuf(&strm->res.buf);
3378
3379 chunk_appendf(&trash,
3380 " htx=%p flags=0x%x size=%u data=%u used=%u wrap=%s extra=%llu\n",
3381 htx, htx->flags, htx->size, htx->data, htx->used,
Christopher Faulet28f29c72019-04-30 17:55:45 +02003382 (htx->tail >= htx->head) ? "NO" : "YES",
Christopher Fauletb9af8812019-01-04 14:30:44 +01003383 (unsigned long long)htx->extra);
3384 }
3385
Willy Tarreaue6e52362019-01-04 17:42:57 +01003386 if (ci_putchk(si_ic(si), &trash) == -1)
3387 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003388
3389 /* use other states to dump the contents */
3390 }
3391 /* end of dump */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003392 done:
William Lallemand4c5b4d52016-11-21 08:51:11 +01003393 appctx->ctx.sess.uid = 0;
3394 appctx->ctx.sess.section = 0;
3395 return 1;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003396 full:
3397 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003398}
3399
3400
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003401static int cli_parse_show_sess(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemand4c5b4d52016-11-21 08:51:11 +01003402{
William Lallemand4c5b4d52016-11-21 08:51:11 +01003403 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
3404 return 1;
3405
3406 if (*args[2] && strcmp(args[2], "all") == 0)
3407 appctx->ctx.sess.target = (void *)-1;
3408 else if (*args[2])
3409 appctx->ctx.sess.target = (void *)strtoul(args[2], NULL, 0);
3410 else
3411 appctx->ctx.sess.target = NULL;
3412 appctx->ctx.sess.section = 0; /* start with stream status */
3413 appctx->ctx.sess.pos = 0;
3414
3415 return 0;
3416}
3417
3418/* This function dumps all streams' states onto the stream interface's
3419 * read buffer. It returns 0 if the output buffer is full and it needs
Willy Tarreaue6e52362019-01-04 17:42:57 +01003420 * to be called again, otherwise non-zero. It proceeds in an isolated
3421 * thread so there is no thread safety issue here.
William Lallemand4c5b4d52016-11-21 08:51:11 +01003422 */
3423static int cli_io_handler_dump_sess(struct appctx *appctx)
3424{
3425 struct stream_interface *si = appctx->owner;
3426 struct connection *conn;
3427
Willy Tarreaue6e52362019-01-04 17:42:57 +01003428 thread_isolate();
3429
William Lallemand4c5b4d52016-11-21 08:51:11 +01003430 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW))) {
3431 /* If we're forced to shut down, we might have to remove our
3432 * reference to the last stream being dumped.
3433 */
3434 if (appctx->st2 == STAT_ST_LIST) {
3435 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users)) {
3436 LIST_DEL(&appctx->ctx.sess.bref.users);
3437 LIST_INIT(&appctx->ctx.sess.bref.users);
3438 }
3439 }
Willy Tarreaue6e52362019-01-04 17:42:57 +01003440 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003441 }
3442
3443 chunk_reset(&trash);
3444
3445 switch (appctx->st2) {
3446 case STAT_ST_INIT:
3447 /* the function had not been called yet, let's prepare the
3448 * buffer for a response. We initialize the current stream
3449 * pointer to the first in the global list. When a target
3450 * stream is being destroyed, it is responsible for updating
3451 * this pointer. We know we have reached the end when this
3452 * pointer points back to the head of the streams list.
3453 */
3454 LIST_INIT(&appctx->ctx.sess.bref.users);
3455 appctx->ctx.sess.bref.ref = streams.n;
3456 appctx->st2 = STAT_ST_LIST;
3457 /* fall through */
3458
3459 case STAT_ST_LIST:
3460 /* first, let's detach the back-ref from a possible previous stream */
3461 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users)) {
3462 LIST_DEL(&appctx->ctx.sess.bref.users);
3463 LIST_INIT(&appctx->ctx.sess.bref.users);
3464 }
3465
3466 /* and start from where we stopped */
3467 while (appctx->ctx.sess.bref.ref != &streams) {
3468 char pn[INET6_ADDRSTRLEN];
3469 struct stream *curr_strm;
3470
3471 curr_strm = LIST_ELEM(appctx->ctx.sess.bref.ref, struct stream *, list);
3472
3473 if (appctx->ctx.sess.target) {
3474 if (appctx->ctx.sess.target != (void *)-1 && appctx->ctx.sess.target != curr_strm)
3475 goto next_sess;
3476
3477 LIST_ADDQ(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
3478 /* call the proper dump() function and return if we're missing space */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003479 if (!stats_dump_full_strm_to_buffer(si, curr_strm))
3480 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003481
3482 /* stream dump complete */
3483 LIST_DEL(&appctx->ctx.sess.bref.users);
3484 LIST_INIT(&appctx->ctx.sess.bref.users);
3485 if (appctx->ctx.sess.target != (void *)-1) {
3486 appctx->ctx.sess.target = NULL;
3487 break;
3488 }
3489 else
3490 goto next_sess;
3491 }
3492
3493 chunk_appendf(&trash,
3494 "%p: proto=%s",
3495 curr_strm,
3496 strm_li(curr_strm) ? strm_li(curr_strm)->proto->name : "?");
3497
3498 conn = objt_conn(strm_orig(curr_strm));
3499 switch (conn ? addr_to_str(&conn->addr.from, pn, sizeof(pn)) : AF_UNSPEC) {
3500 case AF_INET:
3501 case AF_INET6:
3502 chunk_appendf(&trash,
3503 " src=%s:%d fe=%s be=%s srv=%s",
3504 pn,
3505 get_host_port(&conn->addr.from),
3506 strm_fe(curr_strm)->id,
3507 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
3508 objt_server(curr_strm->target) ? objt_server(curr_strm->target)->id : "<none>"
3509 );
3510 break;
3511 case AF_UNIX:
3512 chunk_appendf(&trash,
3513 " src=unix:%d fe=%s be=%s srv=%s",
3514 strm_li(curr_strm)->luid,
3515 strm_fe(curr_strm)->id,
3516 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
3517 objt_server(curr_strm->target) ? objt_server(curr_strm->target)->id : "<none>"
3518 );
3519 break;
3520 }
3521
3522 chunk_appendf(&trash,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003523 " ts=%02x age=%s calls=%u rate=%u cpu=%llu lat=%llu",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003524 curr_strm->task->state,
3525 human_time(now.tv_sec - curr_strm->logs.tv_accept.tv_sec, 1),
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003526 curr_strm->task->calls, read_freq_ctr(&curr_strm->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003527 (unsigned long long)curr_strm->task->cpu_time, (unsigned long long)curr_strm->task->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003528
3529 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003530 " rq[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003531 curr_strm->req.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003532 (unsigned int)ci_data(&curr_strm->req),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003533 curr_strm->req.analysers,
3534 curr_strm->req.rex ?
3535 human_time(TICKS_TO_MS(curr_strm->req.rex - now_ms),
3536 TICKS_TO_MS(1000)) : "");
3537
3538 chunk_appendf(&trash,
3539 ",wx=%s",
3540 curr_strm->req.wex ?
3541 human_time(TICKS_TO_MS(curr_strm->req.wex - now_ms),
3542 TICKS_TO_MS(1000)) : "");
3543
3544 chunk_appendf(&trash,
3545 ",ax=%s]",
3546 curr_strm->req.analyse_exp ?
3547 human_time(TICKS_TO_MS(curr_strm->req.analyse_exp - now_ms),
3548 TICKS_TO_MS(1000)) : "");
3549
3550 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003551 " rp[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003552 curr_strm->res.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003553 (unsigned int)ci_data(&curr_strm->res),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003554 curr_strm->res.analysers,
3555 curr_strm->res.rex ?
3556 human_time(TICKS_TO_MS(curr_strm->res.rex - now_ms),
3557 TICKS_TO_MS(1000)) : "");
3558
3559 chunk_appendf(&trash,
3560 ",wx=%s",
3561 curr_strm->res.wex ?
3562 human_time(TICKS_TO_MS(curr_strm->res.wex - now_ms),
3563 TICKS_TO_MS(1000)) : "");
3564
3565 chunk_appendf(&trash,
3566 ",ax=%s]",
3567 curr_strm->res.analyse_exp ?
3568 human_time(TICKS_TO_MS(curr_strm->res.analyse_exp - now_ms),
3569 TICKS_TO_MS(1000)) : "");
3570
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003571 conn = cs_conn(objt_cs(curr_strm->si[0].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003572 chunk_appendf(&trash,
3573 " s0=[%d,%1xh,fd=%d,ex=%s]",
3574 curr_strm->si[0].state,
3575 curr_strm->si[0].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003576 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003577 curr_strm->si[0].exp ?
3578 human_time(TICKS_TO_MS(curr_strm->si[0].exp - now_ms),
3579 TICKS_TO_MS(1000)) : "");
3580
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003581 conn = cs_conn(objt_cs(curr_strm->si[1].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003582 chunk_appendf(&trash,
3583 " s1=[%d,%1xh,fd=%d,ex=%s]",
3584 curr_strm->si[1].state,
3585 curr_strm->si[1].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003586 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003587 curr_strm->si[1].exp ?
3588 human_time(TICKS_TO_MS(curr_strm->si[1].exp - now_ms),
3589 TICKS_TO_MS(1000)) : "");
3590
3591 chunk_appendf(&trash,
3592 " exp=%s",
3593 curr_strm->task->expire ?
3594 human_time(TICKS_TO_MS(curr_strm->task->expire - now_ms),
3595 TICKS_TO_MS(1000)) : "");
3596 if (task_in_rq(curr_strm->task))
3597 chunk_appendf(&trash, " run(nice=%d)", curr_strm->task->nice);
3598
3599 chunk_appendf(&trash, "\n");
3600
Willy Tarreau06d80a92017-10-19 14:32:15 +02003601 if (ci_putchk(si_ic(si), &trash) == -1) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003602 /* let's try again later from this stream. We add ourselves into
3603 * this stream's users so that it can remove us upon termination.
3604 */
William Lallemand4c5b4d52016-11-21 08:51:11 +01003605 LIST_ADDQ(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
Willy Tarreaue6e52362019-01-04 17:42:57 +01003606 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003607 }
3608
3609 next_sess:
3610 appctx->ctx.sess.bref.ref = curr_strm->list.n;
3611 }
3612
3613 if (appctx->ctx.sess.target && appctx->ctx.sess.target != (void *)-1) {
3614 /* specified stream not found */
3615 if (appctx->ctx.sess.section > 0)
3616 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
3617 else
3618 chunk_appendf(&trash, "Session not found.\n");
3619
Willy Tarreaue6e52362019-01-04 17:42:57 +01003620 if (ci_putchk(si_ic(si), &trash) == -1)
3621 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003622
3623 appctx->ctx.sess.target = NULL;
3624 appctx->ctx.sess.uid = 0;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003625 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003626 }
William Lallemand4c5b4d52016-11-21 08:51:11 +01003627 /* fall through */
3628
3629 default:
3630 appctx->st2 = STAT_ST_FIN;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003631 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003632 }
Willy Tarreaue6e52362019-01-04 17:42:57 +01003633 done:
3634 thread_release();
3635 return 1;
3636 full:
3637 thread_release();
3638 si_rx_room_blk(si);
3639 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003640}
3641
3642static void cli_release_show_sess(struct appctx *appctx)
3643{
3644 if (appctx->st2 == STAT_ST_LIST) {
Willy Tarreau7ce3f092017-11-10 16:24:41 +01003645 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003646 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users))
3647 LIST_DEL(&appctx->ctx.sess.bref.users);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003648 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003649 }
3650}
3651
Willy Tarreau61b65212016-11-24 11:09:25 +01003652/* Parses the "shutdown session" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003653static int cli_parse_shutdown_session(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau61b65212016-11-24 11:09:25 +01003654{
3655 struct stream *strm, *ptr;
3656
3657 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3658 return 1;
3659
3660 if (!*args[2]) {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +02003661 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreau61b65212016-11-24 11:09:25 +01003662 appctx->ctx.cli.msg = "Session pointer expected (use 'show sess').\n";
Willy Tarreau3b6e5472016-11-24 15:53:53 +01003663 appctx->st0 = CLI_ST_PRINT;
Willy Tarreau61b65212016-11-24 11:09:25 +01003664 return 1;
3665 }
3666
3667 ptr = (void *)strtoul(args[2], NULL, 0);
3668
3669 /* first, look for the requested stream in the stream table */
3670 list_for_each_entry(strm, &streams, list) {
3671 if (strm == ptr)
3672 break;
3673 }
3674
3675 /* do we have the stream ? */
3676 if (strm != ptr) {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +02003677 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreau61b65212016-11-24 11:09:25 +01003678 appctx->ctx.cli.msg = "No such session (use 'show sess').\n";
Willy Tarreau3b6e5472016-11-24 15:53:53 +01003679 appctx->st0 = CLI_ST_PRINT;
Willy Tarreau61b65212016-11-24 11:09:25 +01003680 return 1;
3681 }
3682
3683 stream_shutdown(strm, SF_ERR_KILLED);
3684 return 1;
3685}
3686
Willy Tarreau4e46b622016-11-23 16:50:48 +01003687/* Parses the "shutdown session server" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003688static int cli_parse_shutdown_sessions_server(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau4e46b622016-11-23 16:50:48 +01003689{
3690 struct server *sv;
3691 struct stream *strm, *strm_bck;
3692
3693 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3694 return 1;
3695
3696 sv = cli_find_server(appctx, args[3]);
3697 if (!sv)
3698 return 1;
3699
3700 /* kill all the stream that are on this server */
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003701 HA_SPIN_LOCK(SERVER_LOCK, &sv->lock);
Willy Tarreau4e46b622016-11-23 16:50:48 +01003702 list_for_each_entry_safe(strm, strm_bck, &sv->actconns, by_srv)
3703 if (strm->srv_conn == sv)
3704 stream_shutdown(strm, SF_ERR_KILLED);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003705 HA_SPIN_UNLOCK(SERVER_LOCK, &sv->lock);
Willy Tarreau4e46b622016-11-23 16:50:48 +01003706 return 1;
3707}
3708
William Lallemand4c5b4d52016-11-21 08:51:11 +01003709/* register cli keywords */
3710static struct cli_kw_list cli_kws = {{ },{
3711 { { "show", "sess", NULL }, "show sess [id] : report the list of current sessions or dump this session", cli_parse_show_sess, cli_io_handler_dump_sess, cli_release_show_sess },
Willy Tarreau61b65212016-11-24 11:09:25 +01003712 { { "shutdown", "session", NULL }, "shutdown session : kill a specific session", cli_parse_shutdown_session, NULL, NULL },
Willy Tarreau4e46b622016-11-23 16:50:48 +01003713 { { "shutdown", "sessions", "server" }, "shutdown sessions server : kill sessions on a server", cli_parse_shutdown_sessions_server, NULL, NULL },
William Lallemand4c5b4d52016-11-21 08:51:11 +01003714 {{},}
3715}};
3716
Willy Tarreau0108d902018-11-25 19:14:37 +01003717INITCALL1(STG_REGISTER, cli_register_kw, &cli_kws);
3718
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003719/* main configuration keyword registration. */
3720static struct action_kw_list stream_tcp_keywords = { ILH, {
3721 { "use-service", stream_parse_use_service },
3722 { /* END */ }
3723}};
3724
Willy Tarreau0108d902018-11-25 19:14:37 +01003725INITCALL1(STG_REGISTER, tcp_req_cont_keywords_register, &stream_tcp_keywords);
3726
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003727static struct action_kw_list stream_http_keywords = { ILH, {
3728 { "use-service", stream_parse_use_service },
3729 { /* END */ }
3730}};
3731
Willy Tarreau0108d902018-11-25 19:14:37 +01003732INITCALL1(STG_REGISTER, http_req_keywords_register, &stream_http_keywords);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003733
Willy Tarreaubaaee002006-06-26 02:48:02 +02003734/*
3735 * Local variables:
3736 * c-indent-level: 8
3737 * c-basic-offset: 8
3738 * End:
3739 */