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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);
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200347 tasklet_free(s->si[1].wait_event.tasklet);
Willy Tarreaue5f229e2018-10-15 11:08:55 +0200348 LIST_DEL(&s->list);
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200349out_fail_alloc_si1:
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200350 tasklet_free(s->si[0].wait_event.tasklet);
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
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200483 tasklet_free(s->si[0].wait_event.tasklet);
484 tasklet_free(s->si[1].wait_event.tasklet);
Olivier Houchardd7bd3e32018-10-18 16:22:02 +0200485
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 Tarreaud66ed882019-06-05 18:02:04 +0200652/* This function is called with (si->state == SI_ST_CON) meaning that a
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100653 * connection was attempted and that the file descriptor is already allocated.
Willy Tarreaud66ed882019-06-05 18:02:04 +0200654 * We must check for timeout, error and abort. Possible output states are
655 * SI_ST_CER (error), SI_ST_DIS (abort), and SI_ST_CON (no change). This only
656 * works with connection-based streams. We know that there were no I/O event
657 * when reaching this function. Timeouts and errors are *not* cleared.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100658 */
Willy Tarreaud66ed882019-06-05 18:02:04 +0200659static void 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 Tarreaud66ed882019-06-05 18:02:04 +0200667 /* the client might want to abort */
668 if ((rep->flags & CF_SHUTW) ||
669 ((req->flags & CF_SHUTW_NOW) &&
670 (channel_is_empty(req) || (s->be->options & PR_O_ABRT_CLOSE)))) {
671 si->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +0200672 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100673 si->err_type |= SI_ET_CONN_ABRT;
Willy Tarreau84455332009-03-15 22:34:05 +0100674 if (s->srv_error)
675 s->srv_error(s, si);
Willy Tarreaud66ed882019-06-05 18:02:04 +0200676 /* Note: state = SI_ST_DIS now */
677 return;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100678 }
679
Willy Tarreaud66ed882019-06-05 18:02:04 +0200680 /* retryable error ? */
681 if (si->flags & (SI_FL_EXP|SI_FL_ERR)) {
682 if (!(s->flags & SF_SRV_REUSED) && conn) {
683 conn_stop_tracking(conn);
684 conn_full_close(conn);
685 }
Christopher Faulet7a3367c2019-05-09 11:46:52 +0200686
Willy Tarreaud66ed882019-06-05 18:02:04 +0200687 if (!si->err_type) {
688 if (si->flags & SI_FL_ERR)
689 si->err_type = SI_ET_CONN_ERR;
690 else
691 si->err_type = SI_ET_CONN_TO;
692 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100693
Willy Tarreaud66ed882019-06-05 18:02:04 +0200694 si->state = SI_ST_CER;
695 return;
696 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100697}
698
699/* This function is called with (si->state == SI_ST_CER) meaning that a
700 * previous connection attempt has failed and that the file descriptor
701 * has already been released. Possible causes include asynchronous error
702 * notification and time out. Possible output states are SI_ST_CLO when
703 * retries are exhausted, SI_ST_TAR when a delay is wanted before a new
704 * connection attempt, SI_ST_ASS when it's wise to retry on the same server,
705 * and SI_ST_REQ when an immediate redispatch is wanted. The buffers are
Willy Tarreaud66ed882019-06-05 18:02:04 +0200706 * marked as in error state. Timeouts and errors are cleared before retrying.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100707 */
Willy Tarreaud66ed882019-06-05 18:02:04 +0200708static void sess_update_st_cer(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100709{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100710 struct stream_interface *si = &s->si[1];
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200711 struct conn_stream *cs = objt_cs(si->end);
712 struct connection *conn = cs_conn(cs);
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100713
Willy Tarreaud66ed882019-06-05 18:02:04 +0200714 si->exp = TICK_ETERNITY;
715 si->flags &= ~SI_FL_EXP;
716
Willy Tarreau87b09662015-04-03 00:22:06 +0200717 /* we probably have to release last stream from the server */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100718 if (objt_server(s->target)) {
719 health_adjust(objt_server(s->target), HANA_STATUS_L4_ERR);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100720
Willy Tarreaue7dff022015-04-03 01:14:29 +0200721 if (s->flags & SF_CURR_SESS) {
722 s->flags &= ~SF_CURR_SESS;
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100723 _HA_ATOMIC_SUB(&__objt_server(s->target)->cur_sess, 1);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100724 }
Willy Tarreau46d5b082017-07-26 20:13:37 +0200725
726 if ((si->flags & SI_FL_ERR) &&
727 conn && conn->err_code == CO_ER_SSL_MISMATCH_SNI) {
728 /* We tried to connect to a server which is configured
729 * with "verify required" and which doesn't have the
730 * "verifyhost" directive. The server presented a wrong
731 * certificate (a certificate for an unexpected name),
732 * which implies that we have used SNI in the handshake,
733 * and that the server doesn't have the associated cert
734 * and presented a default one.
735 *
736 * This is a serious enough issue not to retry. It's
737 * especially important because this wrong name might
738 * either be the result of a configuration error, and
739 * retrying will only hammer the server, or is caused
740 * by the use of a wrong SNI value, most likely
741 * provided by the client and we don't want to let the
742 * client provoke retries.
743 */
744 si->conn_retries = 0;
745 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100746 }
747
748 /* ensure that we have enough retries left */
Willy Tarreauee28de02010-06-01 09:51:00 +0200749 si->conn_retries--;
Olivier Houcharda254a372019-04-05 15:30:12 +0200750 if (si->conn_retries < 0 || !(s->be->retry_type & PR_RE_CONN_FAILED)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100751 if (!si->err_type) {
752 si->err_type = SI_ET_CONN_ERR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100753 }
754
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100755 if (objt_server(s->target))
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100756 _HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_conns, 1);
757 _HA_ATOMIC_ADD(&s->be->be_counters.failed_conns, 1);
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100758 sess_change_server(s, NULL);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100759 if (may_dequeue_tasks(objt_server(s->target), s->be))
760 process_srv_queue(objt_server(s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100761
762 /* shutw is enough so stop a connecting socket */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200763 si_shutw(si);
Willy Tarreau103197d2014-11-28 15:26:12 +0100764 s->req.flags |= CF_WRITE_ERROR;
765 s->res.flags |= CF_READ_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100766
767 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100768 if (s->srv_error)
769 s->srv_error(s, si);
Willy Tarreaud66ed882019-06-05 18:02:04 +0200770 return;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100771 }
772
773 /* If the "redispatch" option is set on the backend, we are allowed to
Joseph Lynch726ab712015-05-11 23:25:34 -0700774 * retry on another server. By default this redispatch occurs on the
775 * last retry, but if configured we allow redispatches to occur on
776 * configurable intervals, e.g. on every retry. In order to achieve this,
Willy Tarreau87b09662015-04-03 00:22:06 +0200777 * we must mark the stream unassigned, and eventually clear the DIRECT
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100778 * bit to ignore any persistence cookie. We won't count a retry nor a
779 * redispatch yet, because this will depend on what server is selected.
Willy Tarreau33a14e52014-06-13 17:49:40 +0200780 * If the connection is not persistent, the balancing algorithm is not
781 * determinist (round robin) and there is more than one active server,
782 * we accept to perform an immediate redispatch without waiting since
783 * we don't care about this particular server.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100784 */
Willy Tarreau33a14e52014-06-13 17:49:40 +0200785 if (objt_server(s->target) &&
Joseph Lynch726ab712015-05-11 23:25:34 -0700786 (s->be->options & PR_O_REDISP) && !(s->flags & SF_FORCE_PRST) &&
Emeric Brun52a91d32017-08-31 14:41:55 +0200787 ((__objt_server(s->target)->cur_state < SRV_ST_RUNNING) ||
Willy Tarreau49008c12016-01-13 07:58:44 +0100788 (((s->be->redispatch_after > 0) &&
Joseph Lynch726ab712015-05-11 23:25:34 -0700789 ((s->be->conn_retries - si->conn_retries) %
790 s->be->redispatch_after == 0)) ||
791 ((s->be->redispatch_after < 0) &&
792 ((s->be->conn_retries - si->conn_retries) %
793 (s->be->conn_retries + 1 + s->be->redispatch_after) == 0))) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200794 (!(s->flags & SF_DIRECT) && s->be->srv_act > 1 &&
Joseph Lynch726ab712015-05-11 23:25:34 -0700795 ((s->be->lbprm.algo & BE_LB_KIND) == BE_LB_KIND_RR)))) {
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100796 sess_change_server(s, NULL);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100797 if (may_dequeue_tasks(objt_server(s->target), s->be))
798 process_srv_queue(objt_server(s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100799
Willy Tarreaue7dff022015-04-03 01:14:29 +0200800 s->flags &= ~(SF_DIRECT | SF_ASSIGNED | SF_ADDR_SET);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100801 si->state = SI_ST_REQ;
802 } else {
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100803 if (objt_server(s->target))
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100804 _HA_ATOMIC_ADD(&__objt_server(s->target)->counters.retries, 1);
805 _HA_ATOMIC_ADD(&s->be->be_counters.retries, 1);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100806 si->state = SI_ST_ASS;
807 }
808
809 if (si->flags & SI_FL_ERR) {
810 /* The error was an asynchronous connection error, and we will
811 * likely have to retry connecting to the same server, most
812 * likely leading to the same result. To avoid this, we wait
Willy Tarreauf7a259d2019-01-23 16:29:53 +0100813 * MIN(one second, connect timeout) before retrying. We don't
814 * do it when the failure happened on a reused connection
815 * though.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100816 */
817
Willy Tarreaub0290662014-06-13 17:04:44 +0200818 int delay = 1000;
819
820 if (s->be->timeout.connect && s->be->timeout.connect < delay)
821 delay = s->be->timeout.connect;
822
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100823 if (!si->err_type)
824 si->err_type = SI_ET_CONN_ERR;
825
Willy Tarreaudb6d0122014-06-13 17:40:15 +0200826 /* only wait when we're retrying on the same server */
Willy Tarreauf7a259d2019-01-23 16:29:53 +0100827 if ((si->state == SI_ST_ASS ||
828 (s->be->lbprm.algo & BE_LB_KIND) != BE_LB_KIND_RR ||
829 (s->be->srv_act <= 1)) && !(s->flags & SF_SRV_REUSED)) {
Willy Tarreaudb6d0122014-06-13 17:40:15 +0200830 si->state = SI_ST_TAR;
831 si->exp = tick_add(now_ms, MS_TO_TICKS(delay));
832 }
Olivier Houchard39cc0202019-04-09 19:12:51 +0200833 si->flags &= ~SI_FL_ERR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100834 }
Willy Tarreaud66ed882019-06-05 18:02:04 +0200835}
836
837/* This function is called with (si->state == SI_ST_RDY) meaning that a
838 * connection was attempted, that the file descriptor is already allocated,
839 * and that it has succeeded. We must still check for errors and aborts.
840 * Possible output states are SI_ST_EST (established), SI_ST_CER (error),
841 * and SI_ST_DIS (abort). This only works with connection-based streams.
842 * Timeouts and errors are *not* cleared.
843 */
844static void sess_update_st_rdy_tcp(struct stream *s)
845{
846 struct stream_interface *si = &s->si[1];
847 struct channel *req = &s->req;
848 struct channel *rep = &s->res;
849 struct conn_stream *srv_cs = objt_cs(si->end);
850 struct connection *conn = srv_cs ? srv_cs->conn : objt_conn(si->end);
851
852 /* We know the connection at least succeeded, though it could have
853 * since met an error for any other reason. At least it didn't time out
854 * eventhough the timeout might have been reported right after success.
855 * We need to take care of various situations here :
856 * - everything might be OK. We have to switch to established.
857 * - an I/O error might have been reported after a successful transfer,
858 * which is not retryable and needs to be logged correctly, and needs
859 * established as well
860 * - SI_ST_CON implies !CF_WROTE_DATA but not conversely as we could
861 * have validated a connection with incoming data (e.g. TCP with a
862 * banner protocol), or just a successful connect() probe.
863 * - the client might have requested a connection abort, this needs to
864 * be checked before we decide to retry anything.
865 */
866
867 /* it's still possible to handle client aborts or connection retries
868 * before any data were sent.
869 */
870 if (!(req->flags & CF_WROTE_DATA)) {
871 /* client abort ? */
872 if ((rep->flags & CF_SHUTW) ||
873 ((req->flags & CF_SHUTW_NOW) &&
874 (channel_is_empty(req) || (s->be->options & PR_O_ABRT_CLOSE)))) {
875 /* give up */
876 si->flags |= SI_FL_NOLINGER;
877 si_shutw(si);
878 si->err_type |= SI_ET_CONN_ABRT;
879 if (s->srv_error)
880 s->srv_error(s, si);
881 return;
882 }
883
884 /* retryable error ? */
885 if (si->flags & SI_FL_ERR) {
886 if (!(s->flags & SF_SRV_REUSED) && conn) {
887 conn_stop_tracking(conn);
888 conn_full_close(conn);
889 }
890
891 if (!si->err_type)
892 si->err_type = SI_ET_CONN_ERR;
893 si->state = SI_ST_CER;
894 return;
895 }
896 }
897
898 /* data were sent and/or we had no error, sess_establish() will
899 * now take over.
900 */
901 si->err_type = SI_ET_NONE;
902 si->state = SI_ST_EST;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100903}
904
905/*
906 * This function handles the transition between the SI_ST_CON state and the
Willy Tarreau85e7d002010-05-31 11:57:51 +0200907 * SI_ST_EST state. It must only be called after switching from SI_ST_CON (or
Willy Tarreau4f283fa2019-06-05 14:34:03 +0200908 * SI_ST_INI or SI_ST_RDY) to SI_ST_EST, but only when a ->proto is defined.
Olivier Houchardaacc4052019-05-21 17:43:50 +0200909 * Note that it will switch the interface to SI_ST_DIS if we already have
910 * the CF_SHUTR flag, it means we were able to forward the request, and
911 * receive the response, before process_stream() had the opportunity to
912 * make the switch from SI_ST_CON to SI_ST_EST. When that happens, we want
913 * to go through sess_establish() anyway, to make sure the analysers run.
Willy Tarreaud66ed882019-06-05 18:02:04 +0200914 * Timeouts are cleared. Error are reported on the channel so that analysers
915 * can handle them.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100916 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200917static void sess_establish(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100918{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100919 struct stream_interface *si = &s->si[1];
Willy Tarreaud66ed882019-06-05 18:02:04 +0200920 struct conn_stream *srv_cs = objt_cs(si->end);
921 struct connection *conn = srv_cs ? srv_cs->conn : objt_conn(si->end);
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100922 struct channel *req = &s->req;
923 struct channel *rep = &s->res;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100924
Willy Tarreaud66ed882019-06-05 18:02:04 +0200925 /* First, centralize the timers information, and clear any irrelevant
926 * timeout.
927 */
Willy Tarreau0e37f1c2013-12-31 23:06:46 +0100928 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreaud66ed882019-06-05 18:02:04 +0200929 si->exp = TICK_ETERNITY;
930 si->flags &= ~SI_FL_EXP;
931
932 /* errors faced after sending data need to be reported */
933 if (si->flags & SI_FL_ERR && req->flags & CF_WROTE_DATA) {
934 /* Don't add CF_WRITE_ERROR if we're here because
935 * early data were rejected by the server, or
936 * http_wait_for_response() will never be called
937 * to send a 425.
938 */
939 if (conn && conn->err_code != CO_ER_SSL_EARLY_FAILED)
940 req->flags |= CF_WRITE_ERROR;
941 rep->flags |= CF_READ_ERROR;
942 si->err_type = SI_ET_DATA_ERR;
943 }
944
945 /* If the request channel is waiting for the connect(), we mark the read
946 * side as attached on the response channel and we wake up it once. So
947 * it will have a chance to forward data now.
948 */
949 if (req->flags & CF_WAKE_CONNECT) {
950 req->flags |= CF_WAKE_ONCE;
951 req->flags &= ~CF_WAKE_CONNECT;
952 }
Willy Tarreau0e37f1c2013-12-31 23:06:46 +0100953
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100954 if (objt_server(s->target))
955 health_adjust(objt_server(s->target), HANA_STATUS_L4_OK);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100956
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100957 if (s->be->mode == PR_MODE_TCP) { /* let's allow immediate data connection in this case */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100958 /* if the user wants to log as soon as possible, without counting
959 * bytes from the server, then this is the right moment. */
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200960 if (!LIST_ISEMPTY(&strm_fe(s)->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau66425e32018-07-25 06:55:12 +0200961 /* note: no pend_pos here, session is established */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100962 s->logs.t_close = s->logs.t_connect; /* to get a valid end date */
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100963 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100964 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100965 }
966 else {
Willy Tarreaud81ca042013-12-31 22:33:13 +0100967 rep->flags |= CF_READ_DONTWAIT; /* a single read is enough to get response headers */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100968 }
969
Willy Tarreau0007d0a2018-12-11 18:01:38 +0100970 rep->analysers |= strm_fe(s)->fe_rsp_ana | s->be->be_rsp_ana;
Christopher Faulet309c6412015-12-02 09:57:32 +0100971
Willy Tarreau0007d0a2018-12-11 18:01:38 +0100972 /* Be sure to filter response headers if the backend is an HTTP proxy
973 * and if there are filters attached to the stream. */
974 if (s->be->mode == PR_MODE_HTTP && HAS_FILTERS(s))
975 rep->analysers |= AN_RES_FLT_HTTP_HDRS;
Christopher Faulet309c6412015-12-02 09:57:32 +0100976
Willy Tarreau8bb2ffb2018-11-14 17:54:13 +0100977 si_rx_endp_more(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200978 rep->flags |= CF_READ_ATTACHED; /* producer is now attached */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200979 if (objt_cs(si->end)) {
Willy Tarreaud04e8582010-05-31 12:31:35 +0200980 /* real connections have timeouts */
981 req->wto = s->be->timeout.server;
982 rep->rto = s->be->timeout.server;
Olivier Houchard47e9a1a2018-11-07 17:55:19 +0100983 /* The connection is now established, try to read data from the
984 * underlying layer, and subscribe to recv events. We use a
985 * delayed recv here to give a chance to the data to flow back
986 * by the time we process other tasks.
987 */
988 si_chk_rcv(si);
Willy Tarreaud04e8582010-05-31 12:31:35 +0200989 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100990 req->wex = TICK_ETERNITY;
Olivier Houchardaacc4052019-05-21 17:43:50 +0200991 /* If we managed to get the whole response, switch to SI_ST_DIS now. */
992 if (rep->flags & CF_SHUTR)
993 si->state = SI_ST_DIS;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100994}
995
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -0700996/* Check if the connection request is in such a state that it can be aborted. */
997static int check_req_may_abort(struct channel *req, struct stream *s)
998{
999 return ((req->flags & (CF_READ_ERROR)) ||
Willy Tarreaud651ba12018-01-12 10:42:12 +01001000 ((req->flags & (CF_SHUTW_NOW|CF_SHUTW)) && /* empty and client aborted */
Christopher Faulet769d0e92019-03-22 14:23:18 +01001001 (channel_is_empty(req) || (s->be->options & PR_O_ABRT_CLOSE))));
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -07001002}
1003
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01001004/* Update back stream interface status for input states SI_ST_ASS, SI_ST_QUE,
1005 * SI_ST_TAR. Other input states are simply ignored.
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +01001006 * Possible output states are SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ, SI_ST_CON
1007 * and SI_ST_EST. Flags must have previously been updated for timeouts and other
1008 * conditions.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001009 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001010static void sess_update_stream_int(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001011{
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001012 struct server *srv = objt_server(s->target);
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01001013 struct stream_interface *si = &s->si[1];
Willy Tarreau103197d2014-11-28 15:26:12 +01001014 struct channel *req = &s->req;
Willy Tarreau827aee92011-03-10 16:55:02 +01001015
Christopher Faulet45073512018-07-20 10:16:29 +02001016 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 +01001017 now_ms, __FUNCTION__,
1018 s,
CJ Ess6eac32e2015-05-02 16:35:24 -04001019 req, &s->res,
Willy Tarreau103197d2014-11-28 15:26:12 +01001020 req->rex, s->res.wex,
1021 req->flags, s->res.flags,
Christopher Faulet45073512018-07-20 10:16:29 +02001022 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 +01001023
1024 if (si->state == SI_ST_ASS) {
1025 /* Server assigned to connection request, we have to try to connect now */
1026 int conn_err;
1027
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -07001028 /* Before we try to initiate the connection, see if the
1029 * request may be aborted instead.
1030 */
1031 if (check_req_may_abort(req, s)) {
1032 si->err_type |= SI_ET_CONN_ABRT;
1033 goto abort_connection;
1034 }
1035
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001036 conn_err = connect_server(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001037 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01001038
Willy Tarreaue7dff022015-04-03 01:14:29 +02001039 if (conn_err == SF_ERR_NONE) {
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +01001040 /* state = SI_ST_CON or SI_ST_EST now */
Willy Tarreau827aee92011-03-10 16:55:02 +01001041 if (srv)
1042 srv_inc_sess_ctr(srv);
Bhaskar Maddalaa20cb852014-02-03 16:26:46 -05001043 if (srv)
1044 srv_set_sess_last(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001045 return;
1046 }
1047
1048 /* We have received a synchronous error. We might have to
1049 * abort, retry immediately or redispatch.
1050 */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001051 if (conn_err == SF_ERR_INTERNAL) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001052 if (!si->err_type) {
1053 si->err_type = SI_ET_CONN_OTHER;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001054 }
1055
Willy Tarreau827aee92011-03-10 16:55:02 +01001056 if (srv)
1057 srv_inc_sess_ctr(srv);
1058 if (srv)
Bhaskar Maddalaa20cb852014-02-03 16:26:46 -05001059 srv_set_sess_last(srv);
1060 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001061 _HA_ATOMIC_ADD(&srv->counters.failed_conns, 1);
1062 _HA_ATOMIC_ADD(&s->be->be_counters.failed_conns, 1);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001063
Willy Tarreau87b09662015-04-03 00:22:06 +02001064 /* release other streams waiting for this server */
Willy Tarreaub89cfca2010-12-29 14:32:28 +01001065 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001066 if (may_dequeue_tasks(srv, s->be))
1067 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001068
1069 /* Failed and not retryable. */
Willy Tarreau73b013b2012-05-21 16:31:45 +02001070 si_shutr(si);
1071 si_shutw(si);
Willy Tarreau103197d2014-11-28 15:26:12 +01001072 req->flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001073
1074 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1075
Willy Tarreau66425e32018-07-25 06:55:12 +02001076 /* we may need to know the position in the queue for logging */
1077 pendconn_cond_unlink(s->pend_pos);
1078
Willy Tarreau87b09662015-04-03 00:22:06 +02001079 /* no stream was ever accounted for this server */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001080 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001081 if (s->srv_error)
1082 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001083 return;
1084 }
1085
1086 /* We are facing a retryable error, but we don't want to run a
1087 * turn-around now, as the problem is likely a source port
1088 * allocation problem, so we want to retry now.
1089 */
1090 si->state = SI_ST_CER;
1091 si->flags &= ~SI_FL_ERR;
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01001092 sess_update_st_cer(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001093 /* now si->state is one of SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ */
1094 return;
1095 }
1096 else if (si->state == SI_ST_QUE) {
1097 /* connection request was queued, check for any update */
Christopher Faulet5cd4bbd2018-03-14 16:18:06 +01001098 if (!pendconn_dequeue(s)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001099 /* The connection is not in the queue anymore. Either
1100 * we have a server connection slot available and we
1101 * go directly to the assigned state, or we need to
1102 * load-balance first and go to the INI state.
1103 */
1104 si->exp = TICK_ETERNITY;
Willy Tarreaue7dff022015-04-03 01:14:29 +02001105 if (unlikely(!(s->flags & SF_ASSIGNED)))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001106 si->state = SI_ST_REQ;
1107 else {
1108 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1109 si->state = SI_ST_ASS;
1110 }
1111 return;
1112 }
1113
1114 /* Connection request still in queue... */
1115 if (si->flags & SI_FL_EXP) {
1116 /* ... and timeout expired */
1117 si->exp = TICK_ETERNITY;
Willy Tarreaud66ed882019-06-05 18:02:04 +02001118 si->flags &= ~SI_FL_EXP;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001119 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau66425e32018-07-25 06:55:12 +02001120
1121 /* we may need to know the position in the queue for logging */
1122 pendconn_cond_unlink(s->pend_pos);
1123
Willy Tarreau827aee92011-03-10 16:55:02 +01001124 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001125 _HA_ATOMIC_ADD(&srv->counters.failed_conns, 1);
1126 _HA_ATOMIC_ADD(&s->be->be_counters.failed_conns, 1);
Willy Tarreau73b013b2012-05-21 16:31:45 +02001127 si_shutr(si);
1128 si_shutw(si);
Willy Tarreau103197d2014-11-28 15:26:12 +01001129 req->flags |= CF_WRITE_TIMEOUT;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001130 if (!si->err_type)
1131 si->err_type = SI_ET_QUEUE_TO;
1132 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001133 if (s->srv_error)
1134 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001135 return;
1136 }
1137
1138 /* Connection remains in queue, check if we have to abort it */
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -07001139 if (check_req_may_abort(req, s)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001140 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau66425e32018-07-25 06:55:12 +02001141
1142 /* we may need to know the position in the queue for logging */
1143 pendconn_cond_unlink(s->pend_pos);
1144
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001145 si->err_type |= SI_ET_QUEUE_ABRT;
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -07001146 goto abort_connection;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001147 }
1148
1149 /* Nothing changed */
1150 return;
1151 }
1152 else if (si->state == SI_ST_TAR) {
1153 /* Connection request might be aborted */
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -07001154 if (check_req_may_abort(req, s)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001155 si->err_type |= SI_ET_CONN_ABRT;
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -07001156 goto abort_connection;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001157 }
1158
1159 if (!(si->flags & SI_FL_EXP))
1160 return; /* still in turn-around */
1161
Olivier Houchard86dcad62019-04-09 19:17:41 +02001162 si->flags &= ~SI_FL_EXP;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001163 si->exp = TICK_ETERNITY;
1164
Willy Tarreau87b09662015-04-03 00:22:06 +02001165 /* we keep trying on the same server as long as the stream is
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001166 * marked "assigned".
1167 * FIXME: Should we force a redispatch attempt when the server is down ?
1168 */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001169 if (s->flags & SF_ASSIGNED)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001170 si->state = SI_ST_ASS;
1171 else
1172 si->state = SI_ST_REQ;
1173 return;
1174 }
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -07001175 return;
1176
1177abort_connection:
1178 /* give up */
1179 si->exp = TICK_ETERNITY;
Willy Tarreaud66ed882019-06-05 18:02:04 +02001180 si->flags &= ~SI_FL_EXP;
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -07001181 si_shutr(si);
1182 si_shutw(si);
1183 si->state = SI_ST_CLO;
1184 if (s->srv_error)
1185 s->srv_error(s, si);
1186 return;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001187}
1188
Willy Tarreau87b09662015-04-03 00:22:06 +02001189/* Set correct stream termination flags in case no analyser has done it. It
Simon Hormandec5be42011-06-08 09:19:07 +09001190 * also counts a failed request if the server state has not reached the request
1191 * stage.
1192 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001193static void sess_set_term_flags(struct stream *s)
Simon Hormandec5be42011-06-08 09:19:07 +09001194{
Willy Tarreaue7dff022015-04-03 01:14:29 +02001195 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001196 if (s->si[1].state == SI_ST_INI) {
1197 /* anything before REQ in fact */
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001198 _HA_ATOMIC_ADD(&strm_fe(s)->fe_counters.failed_req, 1);
Willy Tarreau2c1068c2015-09-23 12:21:21 +02001199 if (strm_li(s) && strm_li(s)->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001200 _HA_ATOMIC_ADD(&strm_li(s)->counters->failed_req, 1);
Simon Hormandec5be42011-06-08 09:19:07 +09001201
Willy Tarreaue7dff022015-04-03 01:14:29 +02001202 s->flags |= SF_FINST_R;
Simon Hormandec5be42011-06-08 09:19:07 +09001203 }
1204 else if (s->si[1].state == SI_ST_QUE)
Willy Tarreaue7dff022015-04-03 01:14:29 +02001205 s->flags |= SF_FINST_Q;
Willy Tarreau4f283fa2019-06-05 14:34:03 +02001206 else if (si_state_in(s->si[1].state, SI_SB_REQ|SI_SB_TAR|SI_SB_ASS|SI_SB_CON|SI_SB_CER|SI_SB_RDY))
Willy Tarreaue7dff022015-04-03 01:14:29 +02001207 s->flags |= SF_FINST_C;
Simon Hormandec5be42011-06-08 09:19:07 +09001208 else if (s->si[1].state == SI_ST_EST || s->si[1].prev_state == SI_ST_EST)
Willy Tarreaue7dff022015-04-03 01:14:29 +02001209 s->flags |= SF_FINST_D;
Simon Hormandec5be42011-06-08 09:19:07 +09001210 else
Willy Tarreaue7dff022015-04-03 01:14:29 +02001211 s->flags |= SF_FINST_L;
Simon Hormandec5be42011-06-08 09:19:07 +09001212 }
1213}
1214
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001215/* This function initiates a server connection request on a stream interface
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001216 * already in SI_ST_REQ state. Upon success, the state goes to SI_ST_ASS for
1217 * a real connection to a server, indicating that a server has been assigned,
1218 * or SI_ST_EST for a successful connection to an applet. It may also return
1219 * SI_ST_QUE, or SI_ST_CLO upon error.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001220 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001221static void sess_prepare_conn_req(struct stream *s)
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001222{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01001223 struct stream_interface *si = &s->si[1];
1224
Christopher Faulet45073512018-07-20 10:16:29 +02001225 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 +01001226 now_ms, __FUNCTION__,
1227 s,
CJ Ess6eac32e2015-05-02 16:35:24 -04001228 &s->req, &s->res,
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001229 s->req.rex, s->res.wex,
1230 s->req.flags, s->res.flags,
Christopher Faulet45073512018-07-20 10:16:29 +02001231 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 +01001232
1233 if (si->state != SI_ST_REQ)
1234 return;
1235
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001236 if (unlikely(obj_type(s->target) == OBJ_TYPE_APPLET)) {
1237 /* the applet directly goes to the EST state */
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001238 struct appctx *appctx = objt_appctx(si->end);
1239
1240 if (!appctx || appctx->applet != __objt_applet(s->target))
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001241 appctx = si_register_handler(si, objt_applet(s->target));
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001242
1243 if (!appctx) {
1244 /* No more memory, let's immediately abort. Force the
1245 * error code to ignore the ERR_LOCAL which is not a
1246 * real error.
1247 */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001248 s->flags &= ~(SF_ERR_MASK | SF_FINST_MASK);
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001249
1250 si_shutr(si);
1251 si_shutw(si);
Willy Tarreau103197d2014-11-28 15:26:12 +01001252 s->req.flags |= CF_WRITE_ERROR;
Willy Tarreau6bbb2f62013-12-09 17:14:23 +01001253 si->err_type = SI_ET_CONN_RES;
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001254 si->state = SI_ST_CLO;
1255 if (s->srv_error)
1256 s->srv_error(s, si);
1257 return;
1258 }
1259
Willy Tarreauee8269e2017-11-23 17:34:29 +01001260 if (tv_iszero(&s->logs.tv_request))
1261 s->logs.tv_request = now;
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001262 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001263 si->state = SI_ST_EST;
1264 si->err_type = SI_ET_NONE;
Willy Tarreaub9a551e2014-04-23 00:35:17 +02001265 be_set_sess_last(s->be);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01001266 /* let sess_establish() finish the job */
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001267 return;
1268 }
1269
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001270 /* Try to assign a server */
1271 if (srv_redispatch_connect(s) != 0) {
1272 /* We did not get a server. Either we queued the
1273 * connection request, or we encountered an error.
1274 */
1275 if (si->state == SI_ST_QUE)
1276 return;
1277
1278 /* we did not get any server, let's check the cause */
Willy Tarreau73b013b2012-05-21 16:31:45 +02001279 si_shutr(si);
1280 si_shutw(si);
Willy Tarreau103197d2014-11-28 15:26:12 +01001281 s->req.flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001282 if (!si->err_type)
1283 si->err_type = SI_ET_CONN_OTHER;
1284 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001285 if (s->srv_error)
1286 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001287 return;
1288 }
1289
1290 /* The server is assigned */
1291 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1292 si->state = SI_ST_ASS;
Willy Tarreaub9a551e2014-04-23 00:35:17 +02001293 be_set_sess_last(s->be);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001294}
1295
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001296/* This function parses the use-service action ruleset. It executes
1297 * the associated ACL and set an applet as a stream or txn final node.
1298 * it returns ACT_RET_ERR if an error occurs, the proxy left in
1299 * consistent state. It returns ACT_RET_STOP in succes case because
1300 * use-service must be a terminal action. Returns ACT_RET_YIELD
1301 * if the initialisation function require more data.
1302 */
1303enum act_return process_use_service(struct act_rule *rule, struct proxy *px,
1304 struct session *sess, struct stream *s, int flags)
1305
1306{
1307 struct appctx *appctx;
1308
1309 /* Initialises the applet if it is required. */
1310 if (flags & ACT_FLAG_FIRST) {
1311 /* Register applet. this function schedules the applet. */
1312 s->target = &rule->applet.obj_type;
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001313 if (unlikely(!si_register_handler(&s->si[1], objt_applet(s->target))))
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001314 return ACT_RET_ERR;
1315
1316 /* Initialise the context. */
1317 appctx = si_appctx(&s->si[1]);
1318 memset(&appctx->ctx, 0, sizeof(appctx->ctx));
1319 appctx->rule = rule;
1320 }
1321 else
1322 appctx = si_appctx(&s->si[1]);
1323
1324 /* Stops the applet sheduling, in case of the init function miss
1325 * some data.
1326 */
Willy Tarreau0cd3bd62018-11-06 18:46:37 +01001327 si_stop_get(&s->si[1]);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001328
1329 /* Call initialisation. */
1330 if (rule->applet.init)
1331 switch (rule->applet.init(appctx, px, s)) {
1332 case 0: return ACT_RET_ERR;
1333 case 1: break;
1334 default: return ACT_RET_YIELD;
1335 }
1336
Christopher Faulet2571bc62019-03-01 11:44:26 +01001337 if (rule->from != ACT_F_HTTP_REQ) {
1338 if (sess->fe == s->be) /* report it if the request was intercepted by the frontend */
1339 _HA_ATOMIC_ADD(&sess->fe->fe_counters.intercepted_req, 1);
1340
1341 /* The flag SF_ASSIGNED prevent from server assignment. */
1342 s->flags |= SF_ASSIGNED;
1343 }
1344
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001345 /* Now we can schedule the applet. */
Willy Tarreau0cd3bd62018-11-06 18:46:37 +01001346 si_cant_get(&s->si[1]);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001347 appctx_wakeup(appctx);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001348 return ACT_RET_STOP;
1349}
1350
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001351/* This stream analyser checks the switching rules and changes the backend
Willy Tarreau4de91492010-01-22 19:10:05 +01001352 * if appropriate. The default_backend rule is also considered, then the
1353 * target backend's forced persistence rules are also evaluated last if any.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001354 * It returns 1 if the processing can continue on next analysers, or zero if it
1355 * either needs more data or wants to immediately abort the request.
1356 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001357static int process_switching_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001358{
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001359 struct persist_rule *prst_rule;
Willy Tarreau192252e2015-04-04 01:47:55 +02001360 struct session *sess = s->sess;
1361 struct proxy *fe = sess->fe;
Willy Tarreau4de91492010-01-22 19:10:05 +01001362
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001363 req->analysers &= ~an_bit;
1364 req->analyse_exp = TICK_ETERNITY;
1365
Christopher Faulet45073512018-07-20 10:16:29 +02001366 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 +02001367 now_ms, __FUNCTION__,
1368 s,
1369 req,
1370 req->rex, req->wex,
1371 req->flags,
Christopher Faulet45073512018-07-20 10:16:29 +02001372 ci_data(req),
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001373 req->analysers);
1374
1375 /* now check whether we have some switching rules for this request */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001376 if (!(s->flags & SF_BE_ASSIGNED)) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001377 struct switching_rule *rule;
1378
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001379 list_for_each_entry(rule, &fe->switching_rules, list) {
Willy Tarreauf51658d2014-04-23 01:21:56 +02001380 int ret = 1;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001381
Willy Tarreauf51658d2014-04-23 01:21:56 +02001382 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001383 ret = acl_exec_cond(rule->cond, fe, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001384 ret = acl_pass(ret);
1385 if (rule->cond->pol == ACL_COND_UNLESS)
1386 ret = !ret;
1387 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001388
1389 if (ret) {
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001390 /* If the backend name is dynamic, try to resolve the name.
1391 * If we can't resolve the name, or if any error occurs, break
1392 * the loop and fallback to the default backend.
1393 */
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001394 struct proxy *backend = NULL;
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001395
1396 if (rule->dynamic) {
Willy Tarreau83061a82018-07-13 11:56:34 +02001397 struct buffer *tmp;
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001398
1399 tmp = alloc_trash_chunk();
1400 if (!tmp)
1401 goto sw_failed;
1402
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001403 if (build_logline(s, tmp->area, tmp->size, &rule->be.expr))
1404 backend = proxy_be_by_name(tmp->area);
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001405
1406 free_trash_chunk(tmp);
1407 tmp = NULL;
1408
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001409 if (!backend)
1410 break;
1411 }
1412 else
1413 backend = rule->be.backend;
1414
Willy Tarreau87b09662015-04-03 00:22:06 +02001415 if (!stream_set_backend(s, backend))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001416 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001417 break;
1418 }
1419 }
1420
1421 /* To ensure correct connection accounting on the backend, we
1422 * have to assign one if it was not set (eg: a listen). This
1423 * measure also takes care of correctly setting the default
1424 * backend if any.
1425 */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001426 if (!(s->flags & SF_BE_ASSIGNED))
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001427 if (!stream_set_backend(s, fe->defbe.be ? fe->defbe.be : s->be))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001428 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001429 }
1430
Willy Tarreaufb356202010-08-03 14:02:05 +02001431 /* 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 +02001432 if (fe == s->be) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001433 s->req.analysers &= ~AN_REQ_INSPECT_BE;
1434 s->req.analysers &= ~AN_REQ_HTTP_PROCESS_BE;
Christopher Faulet0184ea72017-01-05 14:06:34 +01001435 s->req.analysers &= ~AN_REQ_FLT_START_BE;
Willy Tarreaufb356202010-08-03 14:02:05 +02001436 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001437
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001438 /* 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 +02001439 * persistence rule, and report that in the stream.
Willy Tarreau4de91492010-01-22 19:10:05 +01001440 */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001441 list_for_each_entry(prst_rule, &s->be->persist_rules, list) {
Willy Tarreau4de91492010-01-22 19:10:05 +01001442 int ret = 1;
1443
1444 if (prst_rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001445 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 +01001446 ret = acl_pass(ret);
1447 if (prst_rule->cond->pol == ACL_COND_UNLESS)
1448 ret = !ret;
1449 }
1450
1451 if (ret) {
1452 /* no rule, or the rule matches */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001453 if (prst_rule->type == PERSIST_TYPE_FORCE) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001454 s->flags |= SF_FORCE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001455 } else {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001456 s->flags |= SF_IGNORE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001457 }
Willy Tarreau4de91492010-01-22 19:10:05 +01001458 break;
1459 }
1460 }
1461
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001462 return 1;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001463
1464 sw_failed:
1465 /* immediately abort this request in case of allocation failure */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001466 channel_abort(&s->req);
1467 channel_abort(&s->res);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001468
Willy Tarreaue7dff022015-04-03 01:14:29 +02001469 if (!(s->flags & SF_ERR_MASK))
1470 s->flags |= SF_ERR_RESOURCE;
1471 if (!(s->flags & SF_FINST_MASK))
1472 s->flags |= SF_FINST_R;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001473
Willy Tarreaueee5b512015-04-03 23:46:31 +02001474 if (s->txn)
1475 s->txn->status = 500;
Christopher Faulet0184ea72017-01-05 14:06:34 +01001476 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001477 s->req.analyse_exp = TICK_ETERNITY;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001478 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001479}
1480
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001481/* This stream analyser works on a request. It applies all use-server rules on
1482 * it then returns 1. The data must already be present in the buffer otherwise
1483 * they won't match. It always returns 1.
1484 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001485static int process_server_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001486{
1487 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001488 struct session *sess = s->sess;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001489 struct server_rule *rule;
1490
Christopher Faulet45073512018-07-20 10:16:29 +02001491 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 +02001492 now_ms, __FUNCTION__,
1493 s,
1494 req,
1495 req->rex, req->wex,
1496 req->flags,
Christopher Faulet45073512018-07-20 10:16:29 +02001497 c_data(req),
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001498 req->analysers);
1499
Willy Tarreaue7dff022015-04-03 01:14:29 +02001500 if (!(s->flags & SF_ASSIGNED)) {
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001501 list_for_each_entry(rule, &px->server_rules, list) {
1502 int ret;
1503
Willy Tarreau192252e2015-04-04 01:47:55 +02001504 ret = acl_exec_cond(rule->cond, s->be, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001505 ret = acl_pass(ret);
1506 if (rule->cond->pol == ACL_COND_UNLESS)
1507 ret = !ret;
1508
1509 if (ret) {
1510 struct server *srv = rule->srv.ptr;
1511
Emeric Brun52a91d32017-08-31 14:41:55 +02001512 if ((srv->cur_state != SRV_ST_STOPPED) ||
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001513 (px->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +02001514 (s->flags & SF_FORCE_PRST)) {
1515 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001516 s->target = &srv->obj_type;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001517 break;
1518 }
1519 /* if the server is not UP, let's go on with next rules
1520 * just in case another one is suited.
1521 */
1522 }
1523 }
1524 }
1525
1526 req->analysers &= ~an_bit;
1527 req->analyse_exp = TICK_ETERNITY;
1528 return 1;
1529}
1530
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001531static inline void sticking_rule_find_target(struct stream *s,
1532 struct stktable *t, struct stksess *ts)
1533{
1534 struct proxy *px = s->be;
1535 struct eb32_node *node;
1536 struct dict_entry *de;
1537 void *ptr;
1538 struct server *srv;
1539
1540 /* Look for the server name previously stored in <t> stick-table */
1541 HA_RWLOCK_RDLOCK(STK_SESS_LOCK, &ts->lock);
1542 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_NAME);
1543 de = stktable_data_cast(ptr, server_name);
1544 HA_RWLOCK_RDUNLOCK(STK_SESS_LOCK, &ts->lock);
1545
1546 if (de) {
1547 struct ebpt_node *name;
1548
1549 name = ebis_lookup(&px->conf.used_server_name, de->value.key);
1550 if (name) {
1551 srv = container_of(name, struct server, conf.name);
1552 goto found;
1553 }
1554 }
1555
1556 /* Look for the server ID */
1557 HA_RWLOCK_RDLOCK(STK_SESS_LOCK, &ts->lock);
1558 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_ID);
1559 node = eb32_lookup(&px->conf.used_server_id, stktable_data_cast(ptr, server_id));
1560 HA_RWLOCK_RDUNLOCK(STK_SESS_LOCK, &ts->lock);
1561
1562 if (!node)
1563 return;
1564
1565 srv = container_of(node, struct server, conf.id);
1566 found:
1567 if ((srv->cur_state != SRV_ST_STOPPED) ||
1568 (px->options & PR_O_PERSIST) || (s->flags & SF_FORCE_PRST)) {
1569 s->flags |= SF_DIRECT | SF_ASSIGNED;
1570 s->target = &srv->obj_type;
1571 }
1572}
1573
Emeric Brun1d33b292010-01-04 15:47:17 +01001574/* This stream analyser works on a request. It applies all sticking rules on
1575 * it then returns 1. The data must already be present in the buffer otherwise
1576 * they won't match. It always returns 1.
1577 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001578static int process_sticking_rules(struct stream *s, struct channel *req, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001579{
1580 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001581 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001582 struct sticking_rule *rule;
1583
Christopher Faulet45073512018-07-20 10:16:29 +02001584 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 +01001585 now_ms, __FUNCTION__,
1586 s,
1587 req,
1588 req->rex, req->wex,
1589 req->flags,
Christopher Faulet45073512018-07-20 10:16:29 +02001590 ci_data(req),
Emeric Brun1d33b292010-01-04 15:47:17 +01001591 req->analysers);
1592
1593 list_for_each_entry(rule, &px->sticking_rules, list) {
1594 int ret = 1 ;
1595 int i;
1596
Willy Tarreau9667a802013-12-09 12:52:13 +01001597 /* Only the first stick store-request of each table is applied
1598 * and other ones are ignored. The purpose is to allow complex
1599 * configurations which look for multiple entries by decreasing
1600 * order of precision and to stop at the first which matches.
1601 * An example could be a store of the IP address from an HTTP
1602 * header first, then from the source if not found.
1603 */
Emeric Brun1d33b292010-01-04 15:47:17 +01001604 for (i = 0; i < s->store_count; i++) {
1605 if (rule->table.t == s->store[i].table)
1606 break;
1607 }
1608
1609 if (i != s->store_count)
1610 continue;
1611
1612 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001613 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001614 ret = acl_pass(ret);
1615 if (rule->cond->pol == ACL_COND_UNLESS)
1616 ret = !ret;
1617 }
1618
1619 if (ret) {
1620 struct stktable_key *key;
1621
Willy Tarreau192252e2015-04-04 01:47:55 +02001622 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 +01001623 if (!key)
1624 continue;
1625
1626 if (rule->flags & STK_IS_MATCH) {
1627 struct stksess *ts;
1628
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001629 if ((ts = stktable_lookup_key(rule->table.t, key)) != NULL) {
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001630 if (!(s->flags & SF_ASSIGNED))
1631 sticking_rule_find_target(s, rule->table.t, ts);
Emeric Brun819fc6f2017-06-13 19:37:32 +02001632 stktable_touch_local(rule->table.t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001633 }
1634 }
1635 if (rule->flags & STK_IS_STORE) {
1636 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
1637 struct stksess *ts;
1638
1639 ts = stksess_new(rule->table.t, key);
1640 if (ts) {
1641 s->store[s->store_count].table = rule->table.t;
1642 s->store[s->store_count++].ts = ts;
1643 }
1644 }
1645 }
1646 }
1647 }
1648
1649 req->analysers &= ~an_bit;
1650 req->analyse_exp = TICK_ETERNITY;
1651 return 1;
1652}
1653
1654/* This stream analyser works on a response. It applies all store rules on it
1655 * then returns 1. The data must already be present in the buffer otherwise
1656 * they won't match. It always returns 1.
1657 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001658static int process_store_rules(struct stream *s, struct channel *rep, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001659{
1660 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001661 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001662 struct sticking_rule *rule;
1663 int i;
Willy Tarreau9667a802013-12-09 12:52:13 +01001664 int nbreq = s->store_count;
Emeric Brun1d33b292010-01-04 15:47:17 +01001665
Christopher Faulet45073512018-07-20 10:16:29 +02001666 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 +01001667 now_ms, __FUNCTION__,
1668 s,
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001669 rep,
1670 rep->rex, rep->wex,
1671 rep->flags,
Christopher Faulet45073512018-07-20 10:16:29 +02001672 ci_data(rep),
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001673 rep->analysers);
Emeric Brun1d33b292010-01-04 15:47:17 +01001674
1675 list_for_each_entry(rule, &px->storersp_rules, list) {
1676 int ret = 1 ;
Emeric Brun1d33b292010-01-04 15:47:17 +01001677
Willy Tarreau9667a802013-12-09 12:52:13 +01001678 /* Only the first stick store-response of each table is applied
1679 * and other ones are ignored. The purpose is to allow complex
1680 * configurations which look for multiple entries by decreasing
1681 * order of precision and to stop at the first which matches.
1682 * An example could be a store of a set-cookie value, with a
1683 * fallback to a parameter found in a 302 redirect.
1684 *
1685 * The store-response rules are not allowed to override the
1686 * store-request rules for the same table, but they may coexist.
1687 * Thus we can have up to one store-request entry and one store-
1688 * response entry for the same table at any time.
1689 */
1690 for (i = nbreq; i < s->store_count; i++) {
1691 if (rule->table.t == s->store[i].table)
1692 break;
1693 }
1694
1695 /* skip existing entries for this table */
1696 if (i < s->store_count)
1697 continue;
1698
Emeric Brun1d33b292010-01-04 15:47:17 +01001699 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001700 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_RES|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001701 ret = acl_pass(ret);
1702 if (rule->cond->pol == ACL_COND_UNLESS)
1703 ret = !ret;
1704 }
1705
1706 if (ret) {
1707 struct stktable_key *key;
1708
Willy Tarreau192252e2015-04-04 01:47:55 +02001709 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 +01001710 if (!key)
1711 continue;
1712
Willy Tarreau37e340c2013-12-06 23:05:21 +01001713 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001714 struct stksess *ts;
1715
1716 ts = stksess_new(rule->table.t, key);
1717 if (ts) {
1718 s->store[s->store_count].table = rule->table.t;
Emeric Brun1d33b292010-01-04 15:47:17 +01001719 s->store[s->store_count++].ts = ts;
1720 }
1721 }
1722 }
1723 }
1724
1725 /* process store request and store response */
1726 for (i = 0; i < s->store_count; i++) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001727 struct stksess *ts;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001728 void *ptr;
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001729 struct dict_entry *de;
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001730
Willy Tarreauc93cd162014-05-13 15:54:22 +02001731 if (objt_server(s->target) && objt_server(s->target)->flags & SRV_F_NON_STICK) {
Simon Hormanfa461682011-06-25 09:39:49 +09001732 stksess_free(s->store[i].table, s->store[i].ts);
1733 s->store[i].ts = NULL;
1734 continue;
1735 }
1736
Emeric Brun819fc6f2017-06-13 19:37:32 +02001737 ts = stktable_set_entry(s->store[i].table, s->store[i].ts);
1738 if (ts != s->store[i].ts) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001739 /* the entry already existed, we can free ours */
Emeric Brun1d33b292010-01-04 15:47:17 +01001740 stksess_free(s->store[i].table, s->store[i].ts);
Emeric Brun1d33b292010-01-04 15:47:17 +01001741 }
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001742 s->store[i].ts = NULL;
Emeric Brun819fc6f2017-06-13 19:37:32 +02001743
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001744 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Willy Tarreaub8d42d02018-09-20 11:11:15 +02001745 ptr = __stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_ID);
1746 stktable_data_cast(ptr, server_id) = __objt_server(s->target)->puid;
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001747 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001748
1749 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
1750 de = dict_insert(&server_name_dict, __objt_server(s->target)->id);
1751 if (de) {
1752 ptr = __stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_NAME);
1753 stktable_data_cast(ptr, server_name) = de;
1754 }
1755 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
1756
Emeric Brun819fc6f2017-06-13 19:37:32 +02001757 stktable_touch_local(s->store[i].table, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001758 }
Willy Tarreau2a164ee2010-06-18 09:57:45 +02001759 s->store_count = 0; /* everything is stored */
Emeric Brun1d33b292010-01-04 15:47:17 +01001760
1761 rep->analysers &= ~an_bit;
1762 rep->analyse_exp = TICK_ETERNITY;
1763 return 1;
1764}
1765
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001766/* This macro is very specific to the function below. See the comments in
Willy Tarreau87b09662015-04-03 00:22:06 +02001767 * process_stream() below to understand the logic and the tests.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001768 */
1769#define UPDATE_ANALYSERS(real, list, back, flag) { \
1770 list = (((list) & ~(flag)) | ~(back)) & (real); \
1771 back = real; \
1772 if (!(list)) \
1773 break; \
1774 if (((list) ^ ((list) & ((list) - 1))) < (flag)) \
1775 continue; \
1776}
1777
Christopher Fauleta9215b72016-05-11 17:06:28 +02001778/* These 2 following macros call an analayzer for the specified channel if the
1779 * right flag is set. The first one is used for "filterable" analyzers. If a
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001780 * stream has some registered filters, pre and post analyaze callbacks are
Christopher Faulet0184ea72017-01-05 14:06:34 +01001781 * called. The second are used for other analyzers (AN_REQ/RES_FLT_* and
Christopher Fauleta9215b72016-05-11 17:06:28 +02001782 * AN_REQ/RES_HTTP_XFER_BODY) */
1783#define FLT_ANALYZE(strm, chn, fun, list, back, flag, ...) \
1784 { \
1785 if ((list) & (flag)) { \
1786 if (HAS_FILTERS(strm)) { \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001787 if (!flt_pre_analyze((strm), (chn), (flag))) \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001788 break; \
1789 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1790 break; \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001791 if (!flt_post_analyze((strm), (chn), (flag))) \
1792 break; \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001793 } \
1794 else { \
1795 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1796 break; \
1797 } \
1798 UPDATE_ANALYSERS((chn)->analysers, (list), \
1799 (back), (flag)); \
1800 } \
1801 }
1802
1803#define ANALYZE(strm, chn, fun, list, back, flag, ...) \
1804 { \
1805 if ((list) & (flag)) { \
1806 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1807 break; \
1808 UPDATE_ANALYSERS((chn)->analysers, (list), \
1809 (back), (flag)); \
1810 } \
1811 }
1812
Willy Tarreau87b09662015-04-03 00:22:06 +02001813/* Processes the client, server, request and response jobs of a stream task,
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001814 * then puts it back to the wait queue in a clean state, or cleans up its
1815 * resources if it must be deleted. Returns in <next> the date the task wants
1816 * to be woken up, or TICK_ETERNITY. In order not to call all functions for
1817 * nothing too many times, the request and response buffers flags are monitored
1818 * and each function is called only if at least another function has changed at
1819 * least one flag it is interested in.
1820 */
Olivier Houchard9f6af332018-05-25 14:04:04 +02001821struct task *process_stream(struct task *t, void *context, unsigned short state)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001822{
Willy Tarreau827aee92011-03-10 16:55:02 +01001823 struct server *srv;
Olivier Houchard9f6af332018-05-25 14:04:04 +02001824 struct stream *s = context;
Willy Tarreaufb0afa72015-04-03 14:46:27 +02001825 struct session *sess = s->sess;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001826 unsigned int rqf_last, rpf_last;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001827 unsigned int rq_prod_last, rq_cons_last;
1828 unsigned int rp_cons_last, rp_prod_last;
Willy Tarreau576507f2010-01-07 00:09:04 +01001829 unsigned int req_ana_back;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001830 struct channel *req, *res;
1831 struct stream_interface *si_f, *si_b;
Willy Tarreau3d07a162019-04-25 19:15:20 +02001832 unsigned int rate;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001833
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01001834 activity[tid].stream++;
1835
Willy Tarreau8f128b42014-11-28 15:07:47 +01001836 req = &s->req;
1837 res = &s->res;
1838
1839 si_f = &s->si[0];
1840 si_b = &s->si[1];
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001841
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001842 /* First, attempt to receive pending data from I/O layers */
Willy Tarreauade64782018-11-17 19:51:07 +01001843 si_sync_recv(si_f);
1844 si_sync_recv(si_b);
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001845
Willy Tarreau3d07a162019-04-25 19:15:20 +02001846 rate = update_freq_ctr(&s->call_rate, 1);
1847 if (rate >= 100000 && s->call_rate.prev_ctr) { // make sure to wait at least a full second
1848 stream_dump_and_crash(&s->obj_type, read_freq_ctr(&s->call_rate));
1849 }
Olivier Houchardc2aa7112018-09-11 18:27:21 +02001850
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001851 //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 +01001852 // si_f->state, si_b->state, si_b->err_type, req->flags, res->flags);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001853
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001854 /* this data may be no longer valid, clear it */
Willy Tarreaueee5b512015-04-03 23:46:31 +02001855 if (s->txn)
1856 memset(&s->txn->auth, 0, sizeof(s->txn->auth));
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001857
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02001858 /* This flag must explicitly be set every time */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001859 req->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
1860 res->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001861
1862 /* Keep a copy of req/rep flags so that we can detect shutdowns */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001863 rqf_last = req->flags & ~CF_MASK_ANALYSER;
1864 rpf_last = res->flags & ~CF_MASK_ANALYSER;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001865
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001866 /* we don't want the stream interface functions to recursively wake us up */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001867 si_f->flags |= SI_FL_DONT_WAKE;
1868 si_b->flags |= SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001869
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001870 /* update pending events */
Olivier Houchard9f6af332018-05-25 14:04:04 +02001871 s->pending_events |= (state & TASK_WOKEN_ANY);
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001872
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001873 /* 1a: Check for low level timeouts if needed. We just set a flag on
1874 * stream interfaces when their timeouts have expired.
1875 */
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001876 if (unlikely(s->pending_events & TASK_WOKEN_TIMER)) {
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001877 si_check_timeouts(si_f);
1878 si_check_timeouts(si_b);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001879
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001880 /* check channel timeouts, and close the corresponding stream interfaces
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001881 * for future reads or writes. Note: this will also concern upper layers
1882 * but we do not touch any other flag. We must be careful and correctly
1883 * detect state changes when calling them.
1884 */
1885
Willy Tarreau8f128b42014-11-28 15:07:47 +01001886 channel_check_timeouts(req);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001887
Willy Tarreau8f128b42014-11-28 15:07:47 +01001888 if (unlikely((req->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1889 si_b->flags |= SI_FL_NOLINGER;
1890 si_shutw(si_b);
Willy Tarreau14641402009-12-29 14:49:56 +01001891 }
1892
Willy Tarreau8f128b42014-11-28 15:07:47 +01001893 if (unlikely((req->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1894 if (si_f->flags & SI_FL_NOHALF)
1895 si_f->flags |= SI_FL_NOLINGER;
1896 si_shutr(si_f);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001897 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001898
Willy Tarreau8f128b42014-11-28 15:07:47 +01001899 channel_check_timeouts(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001900
Willy Tarreau8f128b42014-11-28 15:07:47 +01001901 if (unlikely((res->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1902 si_f->flags |= SI_FL_NOLINGER;
1903 si_shutw(si_f);
Willy Tarreau14641402009-12-29 14:49:56 +01001904 }
1905
Willy Tarreau8f128b42014-11-28 15:07:47 +01001906 if (unlikely((res->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1907 if (si_b->flags & SI_FL_NOHALF)
1908 si_b->flags |= SI_FL_NOLINGER;
1909 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001910 }
Willy Tarreau798f4322012-11-08 14:49:17 +01001911
Christopher Fauleta00d8172016-11-10 14:58:05 +01001912 if (HAS_FILTERS(s))
1913 flt_stream_check_timeouts(s);
1914
Willy Tarreau798f4322012-11-08 14:49:17 +01001915 /* Once in a while we're woken up because the task expires. But
1916 * this does not necessarily mean that a timeout has been reached.
Willy Tarreau87b09662015-04-03 00:22:06 +02001917 * So let's not run a whole stream processing if only an expiration
Willy Tarreau798f4322012-11-08 14:49:17 +01001918 * timeout needs to be refreshed.
1919 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001920 if (!((req->flags | res->flags) &
Willy Tarreau798f4322012-11-08 14:49:17 +01001921 (CF_SHUTR|CF_READ_ACTIVITY|CF_READ_TIMEOUT|CF_SHUTW|
Willy Tarreauede3d882018-10-24 17:17:56 +02001922 CF_WRITE_ACTIVITY|CF_WRITE_TIMEOUT|CF_ANA_TIMEOUT)) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01001923 !((si_f->flags | si_b->flags) & (SI_FL_EXP|SI_FL_ERR)) &&
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001924 ((s->pending_events & TASK_WOKEN_ANY) == TASK_WOKEN_TIMER)) {
Willy Tarreau5fb04712016-05-04 10:18:37 +02001925 si_f->flags &= ~SI_FL_DONT_WAKE;
1926 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau798f4322012-11-08 14:49:17 +01001927 goto update_exp_and_leave;
Willy Tarreau5fb04712016-05-04 10:18:37 +02001928 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001929 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001930
Willy Tarreau829bd472019-06-06 09:17:23 +02001931 resync_stream_interface:
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001932 /* below we may emit error messages so we have to ensure that we have
1933 * our buffers properly allocated.
1934 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001935 if (!stream_alloc_work_buffer(s)) {
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001936 /* No buffer available, we've been subscribed to the list of
1937 * buffer waiters, let's wait for our turn.
1938 */
Willy Tarreau5fb04712016-05-04 10:18:37 +02001939 si_f->flags &= ~SI_FL_DONT_WAKE;
1940 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001941 goto update_exp_and_leave;
1942 }
1943
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001944 /* 1b: check for low-level errors reported at the stream interface.
1945 * First we check if it's a retryable error (in which case we don't
1946 * want to tell the buffer). Otherwise we report the error one level
1947 * upper by setting flags into the buffers. Note that the side towards
1948 * the client cannot have connect (hence retryable) errors. Also, the
1949 * connection setup code must be able to deal with any type of abort.
1950 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001951 srv = objt_server(s->target);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001952 if (unlikely(si_f->flags & SI_FL_ERR)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001953 if (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001954 si_shutr(si_f);
1955 si_shutw(si_f);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001956 si_report_error(si_f);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001957 if (!(req->analysers) && !(res->analysers)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001958 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1959 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001960 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001961 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001962 if (!(s->flags & SF_ERR_MASK))
1963 s->flags |= SF_ERR_CLICL;
1964 if (!(s->flags & SF_FINST_MASK))
1965 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001966 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001967 }
1968 }
1969
Willy Tarreau8f128b42014-11-28 15:07:47 +01001970 if (unlikely(si_b->flags & SI_FL_ERR)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001971 if (si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001972 si_shutr(si_b);
1973 si_shutw(si_b);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001974 si_report_error(si_b);
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001975 _HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001976 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001977 _HA_ATOMIC_ADD(&srv->counters.failed_resp, 1);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001978 if (!(req->analysers) && !(res->analysers)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001979 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1980 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001981 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001982 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001983 if (!(s->flags & SF_ERR_MASK))
1984 s->flags |= SF_ERR_SRVCL;
1985 if (!(s->flags & SF_FINST_MASK))
1986 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001987 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001988 }
1989 /* note: maybe we should process connection errors here ? */
1990 }
1991
Willy Tarreau4f283fa2019-06-05 14:34:03 +02001992 if (si_state_in(si_b->state, SI_SB_CON|SI_SB_RDY)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001993 /* we were trying to establish a connection on the server side,
1994 * maybe it succeeded, maybe it failed, maybe we timed out, ...
1995 */
Willy Tarreaud66ed882019-06-05 18:02:04 +02001996 if (si_b->state == SI_ST_RDY)
1997 sess_update_st_rdy_tcp(s);
1998 else if (si_b->state == SI_ST_CON)
1999 sess_update_st_con_tcp(s);
2000
2001 if (si_b->state == SI_ST_CER)
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01002002 sess_update_st_cer(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002003 else if (si_b->state == SI_ST_EST)
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01002004 sess_establish(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002005
2006 /* state is now one of SI_ST_CON (still in progress), SI_ST_EST
2007 * (established), SI_ST_DIS (abort), SI_ST_CLO (last error),
2008 * SI_ST_ASS/SI_ST_TAR/SI_ST_REQ for retryable errors.
2009 */
2010 }
2011
Willy Tarreau8f128b42014-11-28 15:07:47 +01002012 rq_prod_last = si_f->state;
2013 rq_cons_last = si_b->state;
2014 rp_cons_last = si_f->state;
2015 rp_prod_last = si_b->state;
Willy Tarreau815a9b22010-07-27 17:15:12 +02002016
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002017 /* Check for connection closure */
2018
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002019 DPRINTF(stderr,
Christopher Faulet45073512018-07-20 10:16:29 +02002020 "[%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 +01002021 now_ms, __FUNCTION__, __LINE__,
2022 t,
2023 s, s->flags,
Willy Tarreau8f128b42014-11-28 15:07:47 +01002024 req, res,
2025 req->rex, res->wex,
2026 req->flags, res->flags,
Christopher Faulet45073512018-07-20 10:16:29 +02002027 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 +01002028 si_f->err_type, si_b->err_type,
2029 si_b->conn_retries);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002030
2031 /* nothing special to be done on client side */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002032 if (unlikely(si_f->state == SI_ST_DIS))
2033 si_f->state = SI_ST_CLO;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002034
2035 /* When a server-side connection is released, we have to count it and
2036 * check for pending connections on this server.
2037 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002038 if (unlikely(si_b->state == SI_ST_DIS)) {
2039 si_b->state = SI_ST_CLO;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002040 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01002041 if (srv) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002042 if (s->flags & SF_CURR_SESS) {
2043 s->flags &= ~SF_CURR_SESS;
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002044 _HA_ATOMIC_SUB(&srv->cur_sess, 1);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002045 }
2046 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01002047 if (may_dequeue_tasks(srv, s->be))
2048 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002049 }
2050 }
2051
2052 /*
2053 * Note: of the transient states (REQ, CER, DIS), only REQ may remain
2054 * at this point.
2055 */
2056
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002057 resync_request:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002058 /* Analyse request */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002059 if (((req->flags & ~rqf_last) & CF_MASK_ANALYSER) ||
2060 ((req->flags ^ rqf_last) & CF_MASK_STATIC) ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01002061 (req->analysers && (req->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01002062 si_f->state != rq_prod_last ||
2063 si_b->state != rq_cons_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002064 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002065 unsigned int flags = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002066
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002067 if (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01002068 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002069 unsigned int ana_list;
2070 unsigned int ana_back;
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02002071
Willy Tarreau90deb182010-01-07 00:20:41 +01002072 /* it's up to the analysers to stop new connections,
2073 * disable reading or closing. Note: if an analyser
2074 * disables any of these bits, it is responsible for
2075 * enabling them again when it disables itself, so
2076 * that other analysers are called in similar conditions.
2077 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002078 channel_auto_read(req);
2079 channel_auto_connect(req);
2080 channel_auto_close(req);
Willy Tarreauedcf6682008-11-30 23:15:34 +01002081
2082 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01002083 * req->analysers, following the bit order from LSB
Willy Tarreauedcf6682008-11-30 23:15:34 +01002084 * to MSB. The analysers must remove themselves from
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02002085 * the list when not needed. Any analyser may return 0
2086 * to break out of the loop, either because of missing
2087 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02002088 * kill the stream. We loop at least once through each
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02002089 * analyser, and we may loop again if other analysers
2090 * are added in the middle.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002091 *
2092 * We build a list of analysers to run. We evaluate all
2093 * of these analysers in the order of the lower bit to
2094 * the higher bit. This ordering is very important.
2095 * An analyser will often add/remove other analysers,
2096 * including itself. Any changes to itself have no effect
2097 * on the loop. If it removes any other analysers, we
2098 * want those analysers not to be called anymore during
2099 * this loop. If it adds an analyser that is located
2100 * after itself, we want it to be scheduled for being
2101 * processed during the loop. If it adds an analyser
2102 * which is located before it, we want it to switch to
2103 * it immediately, even if it has already been called
2104 * once but removed since.
2105 *
2106 * In order to achieve this, we compare the analyser
2107 * list after the call with a copy of it before the
2108 * call. The work list is fed with analyser bits that
2109 * appeared during the call. Then we compare previous
2110 * work list with the new one, and check the bits that
2111 * appeared. If the lowest of these bits is lower than
2112 * the current bit, it means we have enabled a previous
2113 * analyser and must immediately loop again.
Willy Tarreauedcf6682008-11-30 23:15:34 +01002114 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002115
Willy Tarreau8f128b42014-11-28 15:07:47 +01002116 ana_list = ana_back = req->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01002117 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002118 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01002119 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_FE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02002120 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_FE);
2121 FLT_ANALYZE(s, req, http_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_HTTP);
2122 FLT_ANALYZE(s, req, http_wait_for_request_body, ana_list, ana_back, AN_REQ_HTTP_BODY);
2123 FLT_ANALYZE(s, req, http_process_req_common, ana_list, ana_back, AN_REQ_HTTP_PROCESS_FE, sess->fe);
2124 FLT_ANALYZE(s, req, process_switching_rules, ana_list, ana_back, AN_REQ_SWITCHING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01002125 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02002126 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_BE);
2127 FLT_ANALYZE(s, req, http_process_req_common, ana_list, ana_back, AN_REQ_HTTP_PROCESS_BE, s->be);
2128 FLT_ANALYZE(s, req, http_process_tarpit, ana_list, ana_back, AN_REQ_HTTP_TARPIT);
2129 FLT_ANALYZE(s, req, process_server_rules, ana_list, ana_back, AN_REQ_SRV_RULES);
2130 FLT_ANALYZE(s, req, http_process_request, ana_list, ana_back, AN_REQ_HTTP_INNER);
2131 FLT_ANALYZE(s, req, tcp_persist_rdp_cookie, ana_list, ana_back, AN_REQ_PRST_RDP_COOKIE);
2132 FLT_ANALYZE(s, req, process_sticking_rules, ana_list, ana_back, AN_REQ_STICKING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01002133 ANALYZE (s, req, flt_analyze_http_headers, ana_list, ana_back, AN_REQ_FLT_HTTP_HDRS);
Christopher Fauleta9215b72016-05-11 17:06:28 +02002134 ANALYZE (s, req, http_request_forward_body, ana_list, ana_back, AN_REQ_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02002135 ANALYZE (s, req, pcli_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01002136 ANALYZE (s, req, flt_xfer_data, ana_list, ana_back, AN_REQ_FLT_XFER_DATA);
2137 ANALYZE (s, req, flt_end_analyze, ana_list, ana_back, AN_REQ_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01002138 break;
2139 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002140 }
Willy Tarreau84455332009-03-15 22:34:05 +01002141
Willy Tarreau8f128b42014-11-28 15:07:47 +01002142 rq_prod_last = si_f->state;
2143 rq_cons_last = si_b->state;
2144 req->flags &= ~CF_WAKE_ONCE;
2145 rqf_last = req->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02002146
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02002147 if ((req->flags ^ flags) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002148 goto resync_request;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002149 }
2150
Willy Tarreau576507f2010-01-07 00:09:04 +01002151 /* we'll monitor the request analysers while parsing the response,
2152 * because some response analysers may indirectly enable new request
2153 * analysers (eg: HTTP keep-alive).
2154 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002155 req_ana_back = req->analysers;
Willy Tarreau576507f2010-01-07 00:09:04 +01002156
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002157 resync_response:
2158 /* Analyse response */
2159
Willy Tarreau8f128b42014-11-28 15:07:47 +01002160 if (((res->flags & ~rpf_last) & CF_MASK_ANALYSER) ||
2161 (res->flags ^ rpf_last) & CF_MASK_STATIC ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01002162 (res->analysers && (res->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01002163 si_f->state != rp_cons_last ||
2164 si_b->state != rp_prod_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002165 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002166 unsigned int flags = res->flags;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002167
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002168 if (si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01002169 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002170 unsigned int ana_list;
2171 unsigned int ana_back;
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002172
Willy Tarreau90deb182010-01-07 00:20:41 +01002173 /* it's up to the analysers to stop disable reading or
2174 * closing. Note: if an analyser disables any of these
2175 * bits, it is responsible for enabling them again when
2176 * it disables itself, so that other analysers are called
2177 * in similar conditions.
2178 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002179 channel_auto_read(res);
2180 channel_auto_close(res);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002181
2182 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01002183 * res->analysers, following the bit order from LSB
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002184 * to MSB. The analysers must remove themselves from
2185 * the list when not needed. Any analyser may return 0
2186 * to break out of the loop, either because of missing
2187 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02002188 * kill the stream. We loop at least once through each
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002189 * analyser, and we may loop again if other analysers
2190 * are added in the middle.
2191 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002192
Willy Tarreau8f128b42014-11-28 15:07:47 +01002193 ana_list = ana_back = res->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01002194 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002195 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01002196 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_FE);
2197 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02002198 FLT_ANALYZE(s, res, tcp_inspect_response, ana_list, ana_back, AN_RES_INSPECT);
2199 FLT_ANALYZE(s, res, http_wait_for_response, ana_list, ana_back, AN_RES_WAIT_HTTP);
2200 FLT_ANALYZE(s, res, process_store_rules, ana_list, ana_back, AN_RES_STORE_RULES);
2201 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 +01002202 ANALYZE (s, res, flt_analyze_http_headers, ana_list, ana_back, AN_RES_FLT_HTTP_HDRS);
Christopher Fauleta9215b72016-05-11 17:06:28 +02002203 ANALYZE (s, res, http_response_forward_body, ana_list, ana_back, AN_RES_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02002204 ANALYZE (s, res, pcli_wait_for_response, ana_list, ana_back, AN_RES_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01002205 ANALYZE (s, res, flt_xfer_data, ana_list, ana_back, AN_RES_FLT_XFER_DATA);
2206 ANALYZE (s, res, flt_end_analyze, ana_list, ana_back, AN_RES_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01002207 break;
2208 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002209 }
2210
Willy Tarreau8f128b42014-11-28 15:07:47 +01002211 rp_cons_last = si_f->state;
2212 rp_prod_last = si_b->state;
Christopher Fauletcdaea892017-07-06 15:49:30 +02002213 res->flags &= ~CF_WAKE_ONCE;
Willy Tarreau8f128b42014-11-28 15:07:47 +01002214 rpf_last = res->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02002215
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02002216 if ((res->flags ^ flags) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002217 goto resync_response;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002218 }
2219
Willy Tarreau576507f2010-01-07 00:09:04 +01002220 /* maybe someone has added some request analysers, so we must check and loop */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002221 if (req->analysers & ~req_ana_back)
Willy Tarreau576507f2010-01-07 00:09:04 +01002222 goto resync_request;
2223
Willy Tarreau8f128b42014-11-28 15:07:47 +01002224 if ((req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0499e352010-12-17 07:13:42 +01002225 goto resync_request;
2226
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002227 /* FIXME: here we should call protocol handlers which rely on
2228 * both buffers.
2229 */
2230
2231
2232 /*
Willy Tarreau87b09662015-04-03 00:22:06 +02002233 * Now we propagate unhandled errors to the stream. Normally
Willy Tarreauae526782010-03-04 20:34:23 +01002234 * we're just in a data phase here since it means we have not
2235 * seen any analyser who could set an error status.
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002236 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002237 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002238 if (unlikely(!(s->flags & SF_ERR_MASK))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002239 if (req->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002240 /* Report it if the client got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002241 req->analysers = 0;
2242 if (req->flags & CF_READ_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002243 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
2244 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002245 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002246 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002247 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002248 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002249 else if (req->flags & CF_READ_TIMEOUT) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002250 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
2251 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002252 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002253 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002254 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01002255 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002256 else if (req->flags & CF_WRITE_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002257 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
2258 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002259 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002260 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002261 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002262 }
2263 else {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002264 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
2265 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002266 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002267 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002268 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002269 }
Willy Tarreau84455332009-03-15 22:34:05 +01002270 sess_set_term_flags(s);
Christopher Faulet5e1a9d72019-04-23 17:34:22 +02002271
2272 /* Abort the request if a client error occurred while
2273 * the backend stream-interface is in the SI_ST_INI
2274 * state. It is switched into the SI_ST_CLO state and
2275 * the request channel is erased. */
2276 if (si_b->state == SI_ST_INI) {
2277 si_b->state = SI_ST_CLO;
2278 channel_abort(req);
2279 if (IS_HTX_STRM(s))
2280 channel_htx_erase(req, htxbuf(&req->buf));
2281 else
2282 channel_erase(req);
2283 }
Willy Tarreau84455332009-03-15 22:34:05 +01002284 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002285 else if (res->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002286 /* Report it if the server got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002287 res->analysers = 0;
2288 if (res->flags & CF_READ_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002289 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
2290 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002291 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002292 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002293 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002294 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002295 else if (res->flags & CF_READ_TIMEOUT) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002296 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
2297 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002298 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002299 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002300 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002301 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002302 else if (res->flags & CF_WRITE_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002303 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
2304 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002305 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002306 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002307 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002308 }
2309 else {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002310 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
2311 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002312 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002313 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002314 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01002315 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002316 sess_set_term_flags(s);
2317 }
Willy Tarreau84455332009-03-15 22:34:05 +01002318 }
2319
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002320 /*
2321 * Here we take care of forwarding unhandled data. This also includes
2322 * connection establishments and shutdown requests.
2323 */
2324
2325
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002326 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002327 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002328 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002329 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002330 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02002331 if (unlikely((!req->analysers || (req->analysers == AN_REQ_FLT_END && !(req->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002332 !(req->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002333 (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002334 (req->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002335 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002336 * attached to it. If any data are left in, we'll permit them to
2337 * move.
2338 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002339 channel_auto_read(req);
2340 channel_auto_connect(req);
2341 channel_auto_close(req);
Willy Tarreau5bd8c372009-01-19 00:32:22 +01002342
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002343 if (IS_HTX_STRM(s)) {
2344 struct htx *htx = htxbuf(&req->buf);
2345
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002346 /* We'll let data flow between the producer (if still connected)
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002347 * to the consumer.
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002348 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002349 co_set_data(req, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002350 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002351 channel_htx_forward_forever(req, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002352 }
2353 else {
2354 /* We'll let data flow between the producer (if still connected)
2355 * to the consumer (which might possibly not be connected yet).
2356 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002357 c_adv(req, ci_data(req));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002358 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2359 channel_forward_forever(req);
Willy Tarreau42529c32015-07-09 18:38:57 +02002360
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002361 /* Just in order to support fetching HTTP contents after start
2362 * of forwarding when the HTTP forwarding analyser is not used,
2363 * we simply reset msg->sov so that HTTP rewinding points to the
2364 * headers.
2365 */
Olivier Houchard1909f6d2018-12-06 13:28:30 +01002366 if (s->txn)
2367 s->txn->req.sov = s->txn->req.eoh + s->txn->req.eol - co_data(req);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002368 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002369 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002370
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002371 /* check if it is wise to enable kernel splicing to forward request data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002372 if (!(req->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2373 req->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002374 (global.tune.options & GTUNE_USE_SPLICE) &&
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002375 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->rcv_pipe) &&
2376 (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 +01002377 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002378 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_REQ) ||
2379 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002380 (req->flags & CF_STREAMER_FAST)))) {
2381 req->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002382 }
2383
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002384 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002385 rqf_last = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002386
Willy Tarreau520d95e2009-09-19 21:04:57 +02002387 /* it's possible that an upper layer has requested a connection setup or abort.
2388 * There are 2 situations where we decide to establish a new connection :
2389 * - there are data scheduled for emission in the buffer
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002390 * - the CF_AUTO_CONNECT flag is set (active connection)
Willy Tarreau520d95e2009-09-19 21:04:57 +02002391 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002392 if (si_b->state == SI_ST_INI) {
Christopher Faulet5e1a9d72019-04-23 17:34:22 +02002393 if (!(req->flags & CF_SHUTW)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002394 if ((req->flags & CF_AUTO_CONNECT) || !channel_is_empty(req)) {
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002395 /* If we have an appctx, there is no connect method, so we
2396 * immediately switch to the connected state, otherwise we
2397 * perform a connection request.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002398 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002399 si_b->state = SI_ST_REQ; /* new connection requested */
2400 si_b->conn_retries = s->be->conn_retries;
Olivier Houchard602bf7d2019-05-10 13:59:15 +02002401 if ((s->be->retry_type &~ PR_RE_CONN_FAILED) &&
2402 !(si_b->flags & SI_FL_D_L7_RETRY))
Olivier Houcharda254a372019-04-05 15:30:12 +02002403 si_b->flags |= SI_FL_L7_RETRY;
Willy Tarreau520d95e2009-09-19 21:04:57 +02002404 }
Willy Tarreau73201222009-08-16 18:27:24 +02002405 }
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002406 else {
Willy Tarreau0542c8b2017-11-24 15:01:10 +01002407 si_release_endpoint(si_b);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002408 si_b->state = SI_ST_CLO; /* shutw+ini = abort */
2409 channel_shutw_now(req); /* fix buffer flags upon abort */
2410 channel_shutr_now(res);
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002411 }
Willy Tarreau92795622009-03-06 12:51:23 +01002412 }
2413
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002414
2415 /* we may have a pending connection request, or a connection waiting
2416 * for completion.
2417 */
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002418 if (si_state_in(si_b->state, SI_SB_REQ|SI_SB_QUE|SI_SB_TAR|SI_SB_ASS)) {
Thierry FOURNIER4834bc72015-06-06 19:29:07 +02002419 /* prune the request variables and swap to the response variables. */
2420 if (s->vars_reqres.scope != SCOPE_RES) {
Willy Tarreaucda7f3f2018-10-28 13:44:36 +01002421 if (!LIST_ISEMPTY(&s->vars_reqres.head)) {
2422 vars_prune(&s->vars_reqres, s->sess, s);
2423 vars_init(&s->vars_reqres, SCOPE_RES);
2424 }
Thierry FOURNIER4834bc72015-06-06 19:29:07 +02002425 }
2426
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002427 do {
2428 /* nb: step 1 might switch from QUE to ASS, but we first want
2429 * to give a chance to step 2 to perform a redirect if needed.
2430 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002431 if (si_b->state != SI_ST_REQ)
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01002432 sess_update_stream_int(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002433 if (si_b->state == SI_ST_REQ)
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01002434 sess_prepare_conn_req(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002435
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +01002436 /* applets directly go to the ESTABLISHED state. Similarly,
2437 * servers experience the same fate when their connection
2438 * is reused.
2439 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002440 if (unlikely(si_b->state == SI_ST_EST))
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01002441 sess_establish(s);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01002442
Willy Tarreaub44c8732013-12-31 23:16:50 +01002443 /* Now we can add the server name to a header (if requested) */
2444 /* check for HTTP mode and proxy server_name_hdr_name != NULL */
Willy Tarreau4f283fa2019-06-05 14:34:03 +02002445 if (si_state_in(si_b->state, SI_SB_CON|SI_SB_RDY|SI_SB_EST) &&
Willy Tarreaub44c8732013-12-31 23:16:50 +01002446 (s->be->server_id_hdr_name != NULL) &&
2447 (s->be->mode == PR_MODE_HTTP) &&
2448 objt_server(s->target)) {
Christopher Faulet27a3dc82018-10-23 15:34:07 +02002449 http_send_name_header(s, s->be, objt_server(s->target)->id);
Willy Tarreau1e5dfda2013-04-07 18:19:16 +02002450 }
2451
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002452 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002453 if (si_b->state == SI_ST_ASS && srv && srv->rdr_len && (s->flags & SF_REDIRECTABLE))
Willy Tarreau8f128b42014-11-28 15:07:47 +01002454 http_perform_server_redirect(s, si_b);
2455 } while (si_b->state == SI_ST_ASS);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002456 }
2457
Willy Tarreau829bd472019-06-06 09:17:23 +02002458 /* Let's see if we can send the pending request now */
2459 si_sync_send(si_b);
2460
2461 /*
2462 * Now forward all shutdown requests between both sides of the request buffer
2463 */
2464
2465 /* first, let's check if the request buffer needs to shutdown(write), which may
2466 * happen either because the input is closed or because we want to force a close
2467 * once the server has begun to respond. If a half-closed timeout is set, we adjust
2468 * the other side's timeout as well.
2469 */
2470 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
2471 (CF_AUTO_CLOSE|CF_SHUTR))) {
2472 channel_shutw_now(req);
2473 }
2474
2475 /* shutdown(write) pending */
2476 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2477 channel_is_empty(req))) {
2478 if (req->flags & CF_READ_ERROR)
2479 si_b->flags |= SI_FL_NOLINGER;
2480 si_shutw(si_b);
2481 }
2482
2483 /* shutdown(write) done on server side, we must stop the client too */
2484 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW &&
2485 !req->analysers))
2486 channel_shutr_now(req);
2487
2488 /* shutdown(read) pending */
2489 if (unlikely((req->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2490 if (si_f->flags & SI_FL_NOHALF)
2491 si_f->flags |= SI_FL_NOLINGER;
2492 si_shutr(si_f);
2493 }
2494
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002495 /* Benchmarks have shown that it's optimal to do a full resync now */
Willy Tarreau829bd472019-06-06 09:17:23 +02002496 if (si_f->state == SI_ST_DIS ||
2497 si_state_in(si_b->state, SI_SB_RDY|SI_SB_DIS) ||
2498 (si_f->flags & SI_FL_ERR && si_f->state != SI_ST_CLO) ||
2499 (si_b->flags & SI_FL_ERR && si_b->state != SI_ST_CLO))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002500 goto resync_stream_interface;
2501
Willy Tarreau815a9b22010-07-27 17:15:12 +02002502 /* otherwise we want to check if we need to resync the req buffer or not */
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02002503 if ((req->flags ^ rqf_last) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002504 goto resync_request;
2505
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002506 /* perform output updates to the response buffer */
Willy Tarreau84455332009-03-15 22:34:05 +01002507
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002508 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002509 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002510 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002511 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002512 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02002513 if (unlikely((!res->analysers || (res->analysers == AN_RES_FLT_END && !(res->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002514 !(res->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002515 si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002516 (res->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002517 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002518 * attached to it. If any data are left in, we'll permit them to
2519 * move.
2520 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002521 channel_auto_read(res);
2522 channel_auto_close(res);
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002523
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002524 if (IS_HTX_STRM(s)) {
2525 struct htx *htx = htxbuf(&res->buf);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002526
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002527 /* We'll let data flow between the producer (if still connected)
2528 * to the consumer.
2529 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002530 co_set_data(res, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002531 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002532 channel_htx_forward_forever(res, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002533 }
2534 else {
2535 /* We'll let data flow between the producer (if still connected)
2536 * to the consumer.
2537 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002538 c_adv(res, ci_data(res));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002539 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2540 channel_forward_forever(res);
2541
2542 /* Just in order to support fetching HTTP contents after start
2543 * of forwarding when the HTTP forwarding analyser is not used,
2544 * we simply reset msg->sov so that HTTP rewinding points to the
2545 * headers.
2546 */
Olivier Houchard1909f6d2018-12-06 13:28:30 +01002547 if (s->txn)
2548 s->txn->rsp.sov = s->txn->rsp.eoh + s->txn->rsp.eol - co_data(res);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002549 }
Willy Tarreau42529c32015-07-09 18:38:57 +02002550
Willy Tarreauce887fd2012-05-12 12:50:00 +02002551 /* if we have no analyser anymore in any direction and have a
Willy Tarreau05cdd962014-05-10 14:30:07 +02002552 * tunnel timeout set, use it now. Note that we must respect
2553 * the half-closed timeouts as well.
Willy Tarreauce887fd2012-05-12 12:50:00 +02002554 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002555 if (!req->analysers && s->be->timeout.tunnel) {
2556 req->rto = req->wto = res->rto = res->wto =
Willy Tarreauce887fd2012-05-12 12:50:00 +02002557 s->be->timeout.tunnel;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002558
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002559 if ((req->flags & CF_SHUTR) && tick_isset(sess->fe->timeout.clientfin))
2560 res->wto = sess->fe->timeout.clientfin;
Willy Tarreau8f128b42014-11-28 15:07:47 +01002561 if ((req->flags & CF_SHUTW) && tick_isset(s->be->timeout.serverfin))
2562 res->rto = s->be->timeout.serverfin;
2563 if ((res->flags & CF_SHUTR) && tick_isset(s->be->timeout.serverfin))
2564 req->wto = s->be->timeout.serverfin;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002565 if ((res->flags & CF_SHUTW) && tick_isset(sess->fe->timeout.clientfin))
2566 req->rto = sess->fe->timeout.clientfin;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002567
Willy Tarreau8f128b42014-11-28 15:07:47 +01002568 req->rex = tick_add(now_ms, req->rto);
2569 req->wex = tick_add(now_ms, req->wto);
2570 res->rex = tick_add(now_ms, res->rto);
2571 res->wex = tick_add(now_ms, res->wto);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002572 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002573 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002574
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002575 /* check if it is wise to enable kernel splicing to forward response data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002576 if (!(res->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2577 res->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002578 (global.tune.options & GTUNE_USE_SPLICE) &&
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002579 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->snd_pipe) &&
2580 (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 +01002581 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002582 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_RTR) ||
2583 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002584 (res->flags & CF_STREAMER_FAST)))) {
2585 res->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002586 }
2587
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002588 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002589 rpf_last = res->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002590
Willy Tarreau829bd472019-06-06 09:17:23 +02002591 /* Let's see if we can send the pending response now */
2592 si_sync_send(si_f);
2593
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002594 /*
2595 * Now forward all shutdown requests between both sides of the buffer
2596 */
2597
2598 /*
2599 * FIXME: this is probably where we should produce error responses.
2600 */
2601
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002602 /* first, let's check if the response buffer needs to shutdown(write) */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002603 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau05cdd962014-05-10 14:30:07 +02002604 (CF_AUTO_CLOSE|CF_SHUTR))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002605 channel_shutw_now(res);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002606 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002607
2608 /* shutdown(write) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002609 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2610 channel_is_empty(res))) {
2611 si_shutw(si_f);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002612 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002613
2614 /* shutdown(write) done on the client side, we must stop the server too */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002615 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW) &&
2616 !res->analysers)
2617 channel_shutr_now(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002618
2619 /* shutdown(read) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002620 if (unlikely((res->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2621 if (si_b->flags & SI_FL_NOHALF)
2622 si_b->flags |= SI_FL_NOLINGER;
2623 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002624 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002625
Willy Tarreau829bd472019-06-06 09:17:23 +02002626 if (si_f->state == SI_ST_DIS ||
2627 si_state_in(si_b->state, SI_SB_RDY|SI_SB_DIS) ||
2628 (si_f->flags & SI_FL_ERR && si_f->state != SI_ST_CLO) ||
2629 (si_b->flags & SI_FL_ERR && si_b->state != SI_ST_CLO))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002630 goto resync_stream_interface;
2631
Willy Tarreau3c5c0662019-06-06 14:32:49 +02002632 if ((req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002633 goto resync_request;
2634
Willy Tarreau8f128b42014-11-28 15:07:47 +01002635 if ((res->flags ^ rpf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002636 goto resync_response;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002637
Willy Tarreau829bd472019-06-06 09:17:23 +02002638 if (((req->flags ^ rqf_last) | (res->flags ^ rpf_last)) & CF_MASK_ANALYSER)
2639 goto resync_request;
2640
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002641 /* we're interested in getting wakeups again */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002642 si_f->flags &= ~SI_FL_DONT_WAKE;
2643 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002644
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002645 /* This is needed only when debugging is enabled, to indicate
2646 * client-side or server-side close. Please note that in the unlikely
2647 * event where both sides would close at once, the sequence is reported
2648 * on the server side first.
2649 */
2650 if (unlikely((global.mode & MODE_DEBUG) &&
2651 (!(global.mode & MODE_QUIET) ||
2652 (global.mode & MODE_VERBOSE)))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002653 if (si_b->state == SI_ST_CLO &&
2654 si_b->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002655 chunk_printf(&trash, "%08x:%s.srvcls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002656 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002657 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2658 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002659 shut_your_big_mouth_gcc(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002660 }
2661
Willy Tarreau8f128b42014-11-28 15:07:47 +01002662 if (si_f->state == SI_ST_CLO &&
2663 si_f->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002664 chunk_printf(&trash, "%08x:%s.clicls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002665 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002666 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2667 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002668 shut_your_big_mouth_gcc(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002669 }
2670 }
2671
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002672 if (likely((si_f->state != SI_ST_CLO) || !si_state_in(si_b->state, SI_SB_INI|SI_SB_CLO))) {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002673 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED))
Willy Tarreau87b09662015-04-03 00:22:06 +02002674 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002675
Willy Tarreaud14844a2018-11-08 18:15:29 +01002676 si_update_both(si_f, si_b);
Olivier Houchard53216e72018-10-10 15:46:36 +02002677
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002678 /* Trick: if a request is being waiting for the server to respond,
2679 * and if we know the server can timeout, we don't want the timeout
2680 * to expire on the client side first, but we're still interested
2681 * in passing data from the client to the server (eg: POST). Thus,
2682 * we can cancel the client's request timeout if the server's
2683 * request timeout is set and the server has not yet sent a response.
2684 */
2685
Willy Tarreau8f128b42014-11-28 15:07:47 +01002686 if ((res->flags & (CF_AUTO_CLOSE|CF_SHUTR)) == 0 &&
2687 (tick_isset(req->wex) || tick_isset(res->rex))) {
2688 req->flags |= CF_READ_NOEXP;
2689 req->rex = TICK_ETERNITY;
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002690 }
2691
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002692 /* Reset pending events now */
2693 s->pending_events = 0;
2694
Willy Tarreau798f4322012-11-08 14:49:17 +01002695 update_exp_and_leave:
Willy Tarreau5fb04712016-05-04 10:18:37 +02002696 /* Note: please ensure that if you branch here you disable SI_FL_DONT_WAKE */
Christopher Fauleta00d8172016-11-10 14:58:05 +01002697 t->expire = tick_first((tick_is_expired(t->expire, now_ms) ? 0 : t->expire),
2698 tick_first(tick_first(req->rex, req->wex),
2699 tick_first(res->rex, res->wex)));
Willy Tarreaudef0d222016-11-08 22:03:00 +01002700 if (!req->analysers)
2701 req->analyse_exp = TICK_ETERNITY;
2702
2703 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED) &&
2704 (!tick_isset(req->analyse_exp) || tick_is_expired(req->analyse_exp, now_ms)))
2705 req->analyse_exp = tick_add(now_ms, 5000);
2706
2707 t->expire = tick_first(t->expire, req->analyse_exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002708
Willy Tarreau9a398be2017-11-10 17:14:23 +01002709 t->expire = tick_first(t->expire, res->analyse_exp);
2710
Willy Tarreau8f128b42014-11-28 15:07:47 +01002711 if (si_f->exp)
2712 t->expire = tick_first(t->expire, si_f->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002713
Willy Tarreau8f128b42014-11-28 15:07:47 +01002714 if (si_b->exp)
2715 t->expire = tick_first(t->expire, si_b->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002716
Christopher Faulet56803b12017-11-24 16:06:18 +01002717 DPRINTF(stderr,
Willy Tarreau127334e2009-03-28 10:47:26 +01002718 "[%u] queuing with exp=%u req->rex=%u req->wex=%u req->ana_exp=%u"
2719 " 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 +01002720 now_ms, t->expire, req->rex, req->wex, req->analyse_exp,
2721 res->rex, res->wex, si_f->exp, si_b->exp, si_f->state, si_b->state);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002722
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002723 s->pending_events &= ~(TASK_WOKEN_TIMER | TASK_WOKEN_RES);
Willy Tarreau87b09662015-04-03 00:22:06 +02002724 stream_release_buffers(s);
Willy Tarreau26c25062009-03-08 09:38:41 +01002725 return t; /* nothing more to do */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002726 }
2727
Willy Tarreaue7dff022015-04-03 01:14:29 +02002728 if (s->flags & SF_BE_ASSIGNED)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002729 _HA_ATOMIC_SUB(&s->be->beconn, 1);
Willy Tarreau6f5e4b92017-09-15 09:07:56 +02002730
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002731 if (unlikely((global.mode & MODE_DEBUG) &&
2732 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)))) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002733 chunk_printf(&trash, "%08x:%s.closed[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002734 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002735 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2736 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002737 shut_your_big_mouth_gcc(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002738 }
2739
2740 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau87b09662015-04-03 00:22:06 +02002741 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002742
Willy Tarreaueee5b512015-04-03 23:46:31 +02002743 if (s->txn && s->txn->status) {
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002744 int n;
2745
Willy Tarreaueee5b512015-04-03 23:46:31 +02002746 n = s->txn->status / 100;
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002747 if (n < 1 || n > 5)
2748 n = 0;
2749
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002750 if (sess->fe->mode == PR_MODE_HTTP) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002751 _HA_ATOMIC_ADD(&sess->fe->fe_counters.p.http.rsp[n], 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002752 }
Willy Tarreaue7dff022015-04-03 01:14:29 +02002753 if ((s->flags & SF_BE_ASSIGNED) &&
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002754 (s->be->mode == PR_MODE_HTTP)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002755 _HA_ATOMIC_ADD(&s->be->be_counters.p.http.rsp[n], 1);
2756 _HA_ATOMIC_ADD(&s->be->be_counters.p.http.cum_req, 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002757 }
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002758 }
2759
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002760 /* let's do a final log if we need it */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002761 if (!LIST_ISEMPTY(&sess->fe->logformat) && s->logs.logwait &&
Willy Tarreaue7dff022015-04-03 01:14:29 +02002762 !(s->flags & SF_MONITOR) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002763 (!(sess->fe->options & PR_O_NULLNOLOG) || req->total)) {
Willy Tarreau66425e32018-07-25 06:55:12 +02002764 /* we may need to know the position in the queue */
2765 pendconn_free(s);
Willy Tarreaua5555ec2008-11-30 19:02:32 +01002766 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002767 }
2768
Willy Tarreau87b09662015-04-03 00:22:06 +02002769 /* update time stats for this stream */
2770 stream_update_time_stats(s);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002771
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002772 /* the task MUST not be in the run queue anymore */
Willy Tarreau87b09662015-04-03 00:22:06 +02002773 stream_free(s);
Olivier Houchard3f795f72019-04-17 22:51:06 +02002774 task_destroy(t);
Willy Tarreau26c25062009-03-08 09:38:41 +01002775 return NULL;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002776}
2777
Willy Tarreau87b09662015-04-03 00:22:06 +02002778/* Update the stream's backend and server time stats */
2779void stream_update_time_stats(struct stream *s)
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002780{
2781 int t_request;
2782 int t_queue;
2783 int t_connect;
2784 int t_data;
2785 int t_close;
2786 struct server *srv;
2787
2788 t_request = 0;
2789 t_queue = s->logs.t_queue;
2790 t_connect = s->logs.t_connect;
2791 t_close = s->logs.t_close;
2792 t_data = s->logs.t_data;
2793
2794 if (s->be->mode != PR_MODE_HTTP)
2795 t_data = t_connect;
2796
2797 if (t_connect < 0 || t_data < 0)
2798 return;
2799
2800 if (tv_isge(&s->logs.tv_request, &s->logs.tv_accept))
2801 t_request = tv_ms_elapsed(&s->logs.tv_accept, &s->logs.tv_request);
2802
2803 t_data -= t_connect;
2804 t_connect -= t_queue;
2805 t_queue -= t_request;
2806
2807 srv = objt_server(s->target);
2808 if (srv) {
2809 swrate_add(&srv->counters.q_time, TIME_STATS_SAMPLES, t_queue);
2810 swrate_add(&srv->counters.c_time, TIME_STATS_SAMPLES, t_connect);
2811 swrate_add(&srv->counters.d_time, TIME_STATS_SAMPLES, t_data);
2812 swrate_add(&srv->counters.t_time, TIME_STATS_SAMPLES, t_close);
2813 }
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002814 HA_SPIN_LOCK(PROXY_LOCK, &s->be->lock);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002815 swrate_add(&s->be->be_counters.q_time, TIME_STATS_SAMPLES, t_queue);
2816 swrate_add(&s->be->be_counters.c_time, TIME_STATS_SAMPLES, t_connect);
2817 swrate_add(&s->be->be_counters.d_time, TIME_STATS_SAMPLES, t_data);
2818 swrate_add(&s->be->be_counters.t_time, TIME_STATS_SAMPLES, t_close);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002819 HA_SPIN_UNLOCK(PROXY_LOCK, &s->be->lock);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002820}
2821
Willy Tarreau7c669d72008-06-20 15:04:11 +02002822/*
2823 * This function adjusts sess->srv_conn and maintains the previous and new
Willy Tarreau87b09662015-04-03 00:22:06 +02002824 * server's served stream counts. Setting newsrv to NULL is enough to release
Willy Tarreau7c669d72008-06-20 15:04:11 +02002825 * current connection slot. This function also notifies any LB algo which might
Willy Tarreau87b09662015-04-03 00:22:06 +02002826 * expect to be informed about any change in the number of active streams on a
Willy Tarreau7c669d72008-06-20 15:04:11 +02002827 * server.
2828 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002829void sess_change_server(struct stream *sess, struct server *newsrv)
Willy Tarreau7c669d72008-06-20 15:04:11 +02002830{
2831 if (sess->srv_conn == newsrv)
2832 return;
2833
2834 if (sess->srv_conn) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002835 _HA_ATOMIC_SUB(&sess->srv_conn->served, 1);
2836 _HA_ATOMIC_SUB(&sess->srv_conn->proxy->served, 1);
2837 __ha_barrier_atomic_store();
Willy Tarreau7c669d72008-06-20 15:04:11 +02002838 if (sess->srv_conn->proxy->lbprm.server_drop_conn)
2839 sess->srv_conn->proxy->lbprm.server_drop_conn(sess->srv_conn);
Willy Tarreau87b09662015-04-03 00:22:06 +02002840 stream_del_srv_conn(sess);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002841 }
2842
2843 if (newsrv) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002844 _HA_ATOMIC_ADD(&newsrv->served, 1);
2845 _HA_ATOMIC_ADD(&newsrv->proxy->served, 1);
2846 __ha_barrier_atomic_store();
Willy Tarreau7c669d72008-06-20 15:04:11 +02002847 if (newsrv->proxy->lbprm.server_take_conn)
2848 newsrv->proxy->lbprm.server_take_conn(newsrv);
Willy Tarreau87b09662015-04-03 00:22:06 +02002849 stream_add_srv_conn(sess, newsrv);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002850 }
2851}
2852
Willy Tarreau84455332009-03-15 22:34:05 +01002853/* Handle server-side errors for default protocols. It is called whenever a a
2854 * connection setup is aborted or a request is aborted in queue. It sets the
Willy Tarreau87b09662015-04-03 00:22:06 +02002855 * stream termination flags so that the caller does not have to worry about
Willy Tarreau84455332009-03-15 22:34:05 +01002856 * them. It's installed as ->srv_error for the server-side stream_interface.
2857 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002858void default_srv_error(struct stream *s, struct stream_interface *si)
Willy Tarreau84455332009-03-15 22:34:05 +01002859{
2860 int err_type = si->err_type;
2861 int err = 0, fin = 0;
2862
2863 if (err_type & SI_ET_QUEUE_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002864 err = SF_ERR_CLICL;
2865 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002866 }
2867 else if (err_type & SI_ET_CONN_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002868 err = SF_ERR_CLICL;
2869 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002870 }
2871 else if (err_type & SI_ET_QUEUE_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002872 err = SF_ERR_SRVTO;
2873 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002874 }
2875 else if (err_type & SI_ET_QUEUE_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002876 err = SF_ERR_SRVCL;
2877 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002878 }
2879 else if (err_type & SI_ET_CONN_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002880 err = SF_ERR_SRVTO;
2881 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002882 }
2883 else if (err_type & SI_ET_CONN_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002884 err = SF_ERR_SRVCL;
2885 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002886 }
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002887 else if (err_type & SI_ET_CONN_RES) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002888 err = SF_ERR_RESOURCE;
2889 fin = SF_FINST_C;
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002890 }
Willy Tarreau84455332009-03-15 22:34:05 +01002891 else /* SI_ET_CONN_OTHER and others */ {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002892 err = SF_ERR_INTERNAL;
2893 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002894 }
2895
Willy Tarreaue7dff022015-04-03 01:14:29 +02002896 if (!(s->flags & SF_ERR_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002897 s->flags |= err;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002898 if (!(s->flags & SF_FINST_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002899 s->flags |= fin;
2900}
Willy Tarreau7c669d72008-06-20 15:04:11 +02002901
Willy Tarreaue7dff022015-04-03 01:14:29 +02002902/* kill a stream and set the termination flags to <why> (one of SF_ERR_*) */
Willy Tarreau87b09662015-04-03 00:22:06 +02002903void stream_shutdown(struct stream *stream, int why)
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002904{
Willy Tarreau87b09662015-04-03 00:22:06 +02002905 if (stream->req.flags & (CF_SHUTW|CF_SHUTW_NOW))
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002906 return;
2907
Willy Tarreau87b09662015-04-03 00:22:06 +02002908 channel_shutw_now(&stream->req);
2909 channel_shutr_now(&stream->res);
2910 stream->task->nice = 1024;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002911 if (!(stream->flags & SF_ERR_MASK))
Willy Tarreau87b09662015-04-03 00:22:06 +02002912 stream->flags |= why;
2913 task_wakeup(stream->task, TASK_WOKEN_OTHER);
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002914}
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02002915
Willy Tarreau5484d582019-05-22 09:33:03 +02002916/* Appends a dump of the state of stream <s> into buffer <buf> which must have
2917 * preliminary be prepared by its caller, with each line prepended by prefix
2918 * <pfx>, and each line terminated by character <eol>.
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002919 */
Willy Tarreau5484d582019-05-22 09:33:03 +02002920void stream_dump(struct buffer *buf, const struct stream *s, const char *pfx, char eol)
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002921{
2922 const struct conn_stream *csf, *csb;
2923 const struct connection *cof, *cob;
2924 const struct appctx *acf, *acb;
2925 const struct server *srv;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002926 const char *src = "unknown";
2927 const char *dst = "unknown";
2928 char pn[INET6_ADDRSTRLEN];
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002929 const struct channel *req, *res;
2930 const struct stream_interface *si_f, *si_b;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002931
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002932 if (!s) {
Willy Tarreau5484d582019-05-22 09:33:03 +02002933 chunk_appendf(buf, "%sstrm=%p%c", pfx, s, eol);
2934 return;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002935 }
2936
Willy Tarreau5484d582019-05-22 09:33:03 +02002937 if (s->obj_type != OBJ_TYPE_STREAM) {
2938 chunk_appendf(buf, "%sstrm=%p [invalid type=%d(%s)]%c",
2939 pfx, s, s->obj_type, obj_type_name(&s->obj_type), eol);
2940 return;
2941 }
2942
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002943 si_f = &s->si[0];
2944 si_b = &s->si[1];
2945 req = &s->req;
2946 res = &s->res;
2947
2948 csf = objt_cs(si_f->end);
2949 cof = cs_conn(csf);
2950 acf = objt_appctx(si_f->end);
2951 if (cof && addr_to_str(&cof->addr.from, pn, sizeof(pn)) >= 0)
2952 src = pn;
2953 else if (acf)
2954 src = acf->applet->name;
2955
2956 csb = objt_cs(si_b->end);
2957 cob = cs_conn(csb);
2958 acb = objt_appctx(si_b->end);
2959 srv = objt_server(s->target);
2960 if (srv)
2961 dst = srv->id;
2962 else if (acb)
2963 dst = acb->applet->name;
2964
Willy Tarreau5484d582019-05-22 09:33:03 +02002965 chunk_appendf(buf,
2966 "%sstrm=%p src=%s fe=%s be=%s dst=%s%c"
2967 "%srqf=%x rqa=%x rpf=%x rpa=%x sif=%s,%x sib=%s,%x%c"
2968 "%saf=%p,%u csf=%p,%x%c"
2969 "%sab=%p,%u csb=%p,%x%c"
2970 "%scof=%p,%x:%s(%p)/%s(%p)/%s(%d)%c"
2971 "%scob=%p,%x:%s(%p)/%s(%p)/%s(%d)%c"
2972 "",
2973 pfx, s, src, s->sess->fe->id, s->be->id, dst, eol,
2974 pfx, req->flags, req->analysers, res->flags, res->analysers,
2975 si_state_str(si_f->state), si_f->flags,
2976 si_state_str(si_b->state), si_b->flags, eol,
2977 pfx, acf, acf ? acf->st0 : 0, csf, csf ? csf->flags : 0, eol,
2978 pfx, acb, acb ? acb->st0 : 0, csb, csb ? csb->flags : 0, eol,
2979 pfx, cof, cof ? cof->flags : 0, conn_get_mux_name(cof), cof?cof->ctx:0, conn_get_xprt_name(cof),
2980 cof ? cof->xprt_ctx : 0, conn_get_ctrl_name(cof), cof ? cof->handle.fd : 0, eol,
2981 pfx, cob, cob ? cob->flags : 0, conn_get_mux_name(cob), cob?cob->ctx:0, conn_get_xprt_name(cob),
2982 cob ? cob->xprt_ctx : 0, conn_get_ctrl_name(cob), cob ? cob->handle.fd : 0, eol);
2983}
2984
2985/* dumps an error message for type <type> at ptr <ptr> related to stream <s>,
Willy Tarreaub106ce12019-05-22 08:57:01 +02002986 * having reached loop rate <rate>, then aborts hoping to retrieve a core.
Willy Tarreau5484d582019-05-22 09:33:03 +02002987 */
2988void stream_dump_and_crash(enum obj_type *obj, int rate)
2989{
2990 const struct stream *s;
Willy Tarreau5484d582019-05-22 09:33:03 +02002991 char *msg = NULL;
2992 const void *ptr;
2993
2994 ptr = s = objt_stream(obj);
2995 if (!s) {
2996 const struct appctx *appctx = objt_appctx(obj);
2997 if (!appctx)
2998 return;
2999 ptr = appctx;
3000 s = si_strm(appctx->owner);
3001 if (!s)
3002 return;
3003 }
3004
Willy Tarreau5484d582019-05-22 09:33:03 +02003005 chunk_reset(&trash);
3006 stream_dump(&trash, s, "", ' ');
Willy Tarreaub106ce12019-05-22 08:57:01 +02003007 memprintf(&msg,
3008 "A bogus %s [%p] is spinning at %d calls per second and refuses to die, "
3009 "aborting now! Please report this error to developers "
3010 "[%s]\n",
Willy Tarreau5484d582019-05-22 09:33:03 +02003011 obj_type_name(obj), ptr, rate, trash.area);
Willy Tarreau71c07ac2019-04-25 19:08:48 +02003012
3013 ha_alert("%s", msg);
3014 send_log(NULL, LOG_EMERG, "%s", msg);
3015 abort();
3016}
3017
Willy Tarreau8b22a712010-06-18 17:46:06 +02003018/************************************************************************/
3019/* All supported ACL keywords must be declared here. */
3020/************************************************************************/
3021
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003022/* 0=OK, <0=Alert, >0=Warning */
3023static enum act_parse_ret stream_parse_use_service(const char **args, int *cur_arg,
3024 struct proxy *px, struct act_rule *rule,
3025 char **err)
3026{
3027 struct action_kw *kw;
3028
3029 /* Check if the service name exists. */
3030 if (*(args[*cur_arg]) == 0) {
3031 memprintf(err, "'%s' expects a service name.", args[0]);
Thierry FOURNIER337eae12015-11-26 19:48:04 +01003032 return ACT_RET_PRS_ERR;
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003033 }
3034
3035 /* lookup for keyword corresponding to a service. */
3036 kw = action_lookup(&service_keywords, args[*cur_arg]);
3037 if (!kw) {
3038 memprintf(err, "'%s' unknown service name.", args[1]);
3039 return ACT_RET_PRS_ERR;
3040 }
3041 (*cur_arg)++;
3042
3043 /* executes specific rule parser. */
3044 rule->kw = kw;
3045 if (kw->parse((const char **)args, cur_arg, px, rule, err) == ACT_RET_PRS_ERR)
3046 return ACT_RET_PRS_ERR;
3047
3048 /* Register processing function. */
3049 rule->action_ptr = process_use_service;
3050 rule->action = ACT_CUSTOM;
3051
3052 return ACT_RET_PRS_OK;
3053}
3054
3055void service_keywords_register(struct action_kw_list *kw_list)
3056{
3057 LIST_ADDQ(&service_keywords, &kw_list->list);
3058}
3059
Willy Tarreau679bba12019-03-19 08:08:10 +01003060/* Lists the known services on <out> */
3061void list_services(FILE *out)
3062{
3063 struct action_kw_list *kw_list;
3064 int found = 0;
3065 int i;
3066
3067 fprintf(out, "Available services :");
3068 list_for_each_entry(kw_list, &service_keywords, list) {
3069 for (i = 0; kw_list->kw[i].kw != NULL; i++) {
3070 if (!found)
3071 fputc('\n', out);
3072 found = 1;
3073 fprintf(out, "\t%s\n", kw_list->kw[i].kw);
3074 }
3075 }
3076 if (!found)
3077 fprintf(out, " none\n");
3078}
William Lallemand4c5b4d52016-11-21 08:51:11 +01003079
3080/* This function dumps a complete stream state onto the stream interface's
3081 * read buffer. The stream has to be set in strm. It returns 0 if the output
3082 * buffer is full and it needs to be called again, otherwise non-zero. It is
3083 * designed to be called from stats_dump_strm_to_buffer() below.
3084 */
3085static int stats_dump_full_strm_to_buffer(struct stream_interface *si, struct stream *strm)
3086{
3087 struct appctx *appctx = __objt_appctx(si->end);
3088 struct tm tm;
3089 extern const char *monthname[12];
3090 char pn[INET6_ADDRSTRLEN];
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003091 struct conn_stream *cs;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003092 struct connection *conn;
3093 struct appctx *tmpctx;
3094
3095 chunk_reset(&trash);
3096
3097 if (appctx->ctx.sess.section > 0 && appctx->ctx.sess.uid != strm->uniq_id) {
3098 /* stream changed, no need to go any further */
3099 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
Willy Tarreaue6e52362019-01-04 17:42:57 +01003100 if (ci_putchk(si_ic(si), &trash) == -1)
3101 goto full;
3102 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003103 }
3104
3105 switch (appctx->ctx.sess.section) {
3106 case 0: /* main status of the stream */
3107 appctx->ctx.sess.uid = strm->uniq_id;
3108 appctx->ctx.sess.section = 1;
3109 /* fall through */
3110
3111 case 1:
3112 get_localtime(strm->logs.accept_date.tv_sec, &tm);
3113 chunk_appendf(&trash,
3114 "%p: [%02d/%s/%04d:%02d:%02d:%02d.%06d] id=%u proto=%s",
3115 strm,
3116 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
3117 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(strm->logs.accept_date.tv_usec),
3118 strm->uniq_id,
3119 strm_li(strm) ? strm_li(strm)->proto->name : "?");
3120
3121 conn = objt_conn(strm_orig(strm));
3122 switch (conn ? addr_to_str(&conn->addr.from, pn, sizeof(pn)) : AF_UNSPEC) {
3123 case AF_INET:
3124 case AF_INET6:
3125 chunk_appendf(&trash, " source=%s:%d\n",
3126 pn, get_host_port(&conn->addr.from));
3127 break;
3128 case AF_UNIX:
3129 chunk_appendf(&trash, " source=unix:%d\n", strm_li(strm)->luid);
3130 break;
3131 default:
3132 /* no more information to print right now */
3133 chunk_appendf(&trash, "\n");
3134 break;
3135 }
3136
3137 chunk_appendf(&trash,
Willy Tarreauadf7a152019-01-07 10:10:07 +01003138 " flags=0x%x, conn_retries=%d, srv_conn=%p, pend_pos=%p waiting=%d\n",
3139 strm->flags, strm->si[1].conn_retries, strm->srv_conn, strm->pend_pos,
3140 !LIST_ISEMPTY(&strm->buffer_wait.list));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003141
3142 chunk_appendf(&trash,
3143 " frontend=%s (id=%u mode=%s), listener=%s (id=%u)",
3144 strm_fe(strm)->id, strm_fe(strm)->uuid, strm_fe(strm)->mode ? "http" : "tcp",
3145 strm_li(strm) ? strm_li(strm)->name ? strm_li(strm)->name : "?" : "?",
3146 strm_li(strm) ? strm_li(strm)->luid : 0);
3147
3148 if (conn)
3149 conn_get_to_addr(conn);
3150
3151 switch (conn ? addr_to_str(&conn->addr.to, pn, sizeof(pn)) : AF_UNSPEC) {
3152 case AF_INET:
3153 case AF_INET6:
3154 chunk_appendf(&trash, " addr=%s:%d\n",
3155 pn, get_host_port(&conn->addr.to));
3156 break;
3157 case AF_UNIX:
3158 chunk_appendf(&trash, " addr=unix:%d\n", strm_li(strm)->luid);
3159 break;
3160 default:
3161 /* no more information to print right now */
3162 chunk_appendf(&trash, "\n");
3163 break;
3164 }
3165
3166 if (strm->be->cap & PR_CAP_BE)
3167 chunk_appendf(&trash,
3168 " backend=%s (id=%u mode=%s)",
3169 strm->be->id,
3170 strm->be->uuid, strm->be->mode ? "http" : "tcp");
3171 else
3172 chunk_appendf(&trash, " backend=<NONE> (id=-1 mode=-)");
3173
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003174 cs = objt_cs(strm->si[1].end);
3175 conn = cs_conn(cs);
3176
William Lallemand4c5b4d52016-11-21 08:51:11 +01003177 if (conn)
3178 conn_get_from_addr(conn);
3179
3180 switch (conn ? addr_to_str(&conn->addr.from, pn, sizeof(pn)) : AF_UNSPEC) {
3181 case AF_INET:
3182 case AF_INET6:
3183 chunk_appendf(&trash, " addr=%s:%d\n",
3184 pn, get_host_port(&conn->addr.from));
3185 break;
3186 case AF_UNIX:
3187 chunk_appendf(&trash, " addr=unix\n");
3188 break;
3189 default:
3190 /* no more information to print right now */
3191 chunk_appendf(&trash, "\n");
3192 break;
3193 }
3194
3195 if (strm->be->cap & PR_CAP_BE)
3196 chunk_appendf(&trash,
3197 " server=%s (id=%u)",
3198 objt_server(strm->target) ? objt_server(strm->target)->id : "<none>",
3199 objt_server(strm->target) ? objt_server(strm->target)->puid : 0);
3200 else
3201 chunk_appendf(&trash, " server=<NONE> (id=-1)");
3202
3203 if (conn)
3204 conn_get_to_addr(conn);
3205
3206 switch (conn ? addr_to_str(&conn->addr.to, pn, sizeof(pn)) : AF_UNSPEC) {
3207 case AF_INET:
3208 case AF_INET6:
3209 chunk_appendf(&trash, " addr=%s:%d\n",
3210 pn, get_host_port(&conn->addr.to));
3211 break;
3212 case AF_UNIX:
3213 chunk_appendf(&trash, " addr=unix\n");
3214 break;
3215 default:
3216 /* no more information to print right now */
3217 chunk_appendf(&trash, "\n");
3218 break;
3219 }
3220
3221 chunk_appendf(&trash,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003222 " task=%p (state=0x%02x nice=%d calls=%u rate=%u exp=%s tmask=0x%lx%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003223 strm->task,
3224 strm->task->state,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003225 strm->task->nice, strm->task->calls, read_freq_ctr(&strm->call_rate),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003226 strm->task->expire ?
3227 tick_is_expired(strm->task->expire, now_ms) ? "<PAST>" :
3228 human_time(TICKS_TO_MS(strm->task->expire - now_ms),
3229 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Fauletf0205062017-11-15 20:56:43 +01003230 strm->task->thread_mask,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003231 task_in_rq(strm->task) ? ", running" : "");
3232
3233 chunk_appendf(&trash,
3234 " age=%s)\n",
3235 human_time(now.tv_sec - strm->logs.accept_date.tv_sec, 1));
3236
3237 if (strm->txn)
3238 chunk_appendf(&trash,
Willy Tarreau7778b592019-01-07 10:38:10 +01003239 " txn=%p flags=0x%x meth=%d status=%d req.st=%s rsp.st=%s\n"
3240 " req.f=0x%02x blen=%llu chnk=%llu next=%u\n"
3241 " rsp.f=0x%02x blen=%llu chnk=%llu next=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003242 strm->txn, strm->txn->flags, strm->txn->meth, strm->txn->status,
Willy Tarreau7778b592019-01-07 10:38:10 +01003243 h1_msg_state_str(strm->txn->req.msg_state), h1_msg_state_str(strm->txn->rsp.msg_state),
3244 strm->txn->req.flags, strm->txn->req.body_len, strm->txn->req.chunk_len, strm->txn->req.next,
3245 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 +01003246
3247 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01003248 " 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 +01003249 &strm->si[0],
3250 si_state_str(strm->si[0].state),
3251 strm->si[0].flags,
3252 obj_type_name(strm->si[0].end),
3253 obj_base_ptr(strm->si[0].end),
3254 strm->si[0].exp ?
3255 tick_is_expired(strm->si[0].exp, now_ms) ? "<PAST>" :
3256 human_time(TICKS_TO_MS(strm->si[0].exp - now_ms),
3257 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01003258 strm->si[0].err_type, strm->si[0].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003259
3260 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01003261 " 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 +01003262 &strm->si[1],
3263 si_state_str(strm->si[1].state),
3264 strm->si[1].flags,
3265 obj_type_name(strm->si[1].end),
3266 obj_base_ptr(strm->si[1].end),
3267 strm->si[1].exp ?
3268 tick_is_expired(strm->si[1].exp, now_ms) ? "<PAST>" :
3269 human_time(TICKS_TO_MS(strm->si[1].exp - now_ms),
3270 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01003271 strm->si[1].err_type, strm->si[1].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003272
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003273 if ((cs = objt_cs(strm->si[0].end)) != NULL) {
3274 conn = cs->conn;
3275
William Lallemand4c5b4d52016-11-21 08:51:11 +01003276 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02003277 " co0=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003278 conn,
3279 conn_get_ctrl_name(conn),
3280 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02003281 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003282 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003283 obj_type_name(conn->target),
3284 obj_base_ptr(conn->target));
3285
3286 chunk_appendf(&trash,
Christopher Fauletf0205062017-11-15 20:56:43 +01003287 " 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 +01003288 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003289 conn->handle.fd,
3290 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Olivier Houchard12568362018-01-31 18:07:29 +01003291 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].cache.next >= -2 : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01003292 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01003293 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01003294
3295 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003296 }
3297 else if ((tmpctx = objt_appctx(strm->si[0].end)) != NULL) {
3298 chunk_appendf(&trash,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003299 " 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 +01003300 tmpctx,
3301 tmpctx->st0,
3302 tmpctx->st1,
3303 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01003304 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02003305 tmpctx->thread_mask,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003306 tmpctx->t->nice, tmpctx->t->calls, read_freq_ctr(&tmpctx->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003307 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003308 }
3309
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003310 if ((cs = objt_cs(strm->si[1].end)) != NULL) {
3311 conn = cs->conn;
3312
William Lallemand4c5b4d52016-11-21 08:51:11 +01003313 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02003314 " co1=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003315 conn,
3316 conn_get_ctrl_name(conn),
3317 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02003318 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003319 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003320 obj_type_name(conn->target),
3321 obj_base_ptr(conn->target));
3322
3323 chunk_appendf(&trash,
Christopher Fauletf0205062017-11-15 20:56:43 +01003324 " 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 +01003325 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003326 conn->handle.fd,
3327 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Olivier Houchard12568362018-01-31 18:07:29 +01003328 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].cache.next >= -2 : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01003329 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01003330 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01003331
3332 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003333 }
3334 else if ((tmpctx = objt_appctx(strm->si[1].end)) != NULL) {
3335 chunk_appendf(&trash,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003336 " 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 +01003337 tmpctx,
3338 tmpctx->st0,
3339 tmpctx->st1,
3340 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01003341 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02003342 tmpctx->thread_mask,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003343 tmpctx->t->nice, tmpctx->t->calls, read_freq_ctr(&tmpctx->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003344 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003345 }
3346
3347 chunk_appendf(&trash,
3348 " req=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
3349 " an_exp=%s",
3350 &strm->req,
3351 strm->req.flags, strm->req.analysers,
3352 strm->req.pipe ? strm->req.pipe->data : 0,
3353 strm->req.to_forward, strm->req.total,
3354 strm->req.analyse_exp ?
3355 human_time(TICKS_TO_MS(strm->req.analyse_exp - now_ms),
3356 TICKS_TO_MS(1000)) : "<NEVER>");
3357
3358 chunk_appendf(&trash,
3359 " rex=%s",
3360 strm->req.rex ?
3361 human_time(TICKS_TO_MS(strm->req.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 req.next=%d i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003367 strm->req.wex ?
3368 human_time(TICKS_TO_MS(strm->req.wex - now_ms),
3369 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003370 &strm->req.buf,
3371 b_orig(&strm->req.buf), (unsigned int)co_data(&strm->req),
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003372 (unsigned int)ci_head_ofs(&strm->req),
Willy Tarreau591d4452018-06-15 17:21:00 +02003373 strm->txn ? strm->txn->req.next : 0, (unsigned int)ci_data(&strm->req),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003374 (unsigned int)strm->req.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->req.buf);
3378
3379 chunk_appendf(&trash,
Willy Tarreaub84e67f2019-01-07 10:01:34 +01003380 " 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
William Lallemand4c5b4d52016-11-21 08:51:11 +01003386 chunk_appendf(&trash,
3387 " res=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
3388 " an_exp=%s",
3389 &strm->res,
3390 strm->res.flags, strm->res.analysers,
3391 strm->res.pipe ? strm->res.pipe->data : 0,
3392 strm->res.to_forward, strm->res.total,
3393 strm->res.analyse_exp ?
3394 human_time(TICKS_TO_MS(strm->res.analyse_exp - now_ms),
3395 TICKS_TO_MS(1000)) : "<NEVER>");
3396
3397 chunk_appendf(&trash,
3398 " rex=%s",
3399 strm->res.rex ?
3400 human_time(TICKS_TO_MS(strm->res.rex - now_ms),
3401 TICKS_TO_MS(1000)) : "<NEVER>");
3402
3403 chunk_appendf(&trash,
3404 " wex=%s\n"
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003405 " buf=%p data=%p o=%u p=%u rsp.next=%d i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003406 strm->res.wex ?
3407 human_time(TICKS_TO_MS(strm->res.wex - now_ms),
3408 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003409 &strm->res.buf,
3410 b_orig(&strm->res.buf), (unsigned int)co_data(&strm->res),
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003411 (unsigned int)ci_head_ofs(&strm->res),
Willy Tarreau591d4452018-06-15 17:21:00 +02003412 strm->txn ? strm->txn->rsp.next : 0, (unsigned int)ci_data(&strm->res),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003413 (unsigned int)strm->res.buf.size);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003414
Christopher Fauletb9af8812019-01-04 14:30:44 +01003415 if (IS_HTX_STRM(strm)) {
3416 struct htx *htx = htxbuf(&strm->res.buf);
3417
3418 chunk_appendf(&trash,
3419 " htx=%p flags=0x%x size=%u data=%u used=%u wrap=%s extra=%llu\n",
3420 htx, htx->flags, htx->size, htx->data, htx->used,
Christopher Faulet28f29c72019-04-30 17:55:45 +02003421 (htx->tail >= htx->head) ? "NO" : "YES",
Christopher Fauletb9af8812019-01-04 14:30:44 +01003422 (unsigned long long)htx->extra);
3423 }
3424
Willy Tarreaue6e52362019-01-04 17:42:57 +01003425 if (ci_putchk(si_ic(si), &trash) == -1)
3426 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003427
3428 /* use other states to dump the contents */
3429 }
3430 /* end of dump */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003431 done:
William Lallemand4c5b4d52016-11-21 08:51:11 +01003432 appctx->ctx.sess.uid = 0;
3433 appctx->ctx.sess.section = 0;
3434 return 1;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003435 full:
3436 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003437}
3438
3439
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003440static int cli_parse_show_sess(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemand4c5b4d52016-11-21 08:51:11 +01003441{
William Lallemand4c5b4d52016-11-21 08:51:11 +01003442 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
3443 return 1;
3444
3445 if (*args[2] && strcmp(args[2], "all") == 0)
3446 appctx->ctx.sess.target = (void *)-1;
3447 else if (*args[2])
3448 appctx->ctx.sess.target = (void *)strtoul(args[2], NULL, 0);
3449 else
3450 appctx->ctx.sess.target = NULL;
3451 appctx->ctx.sess.section = 0; /* start with stream status */
3452 appctx->ctx.sess.pos = 0;
3453
3454 return 0;
3455}
3456
3457/* This function dumps all streams' states onto the stream interface's
3458 * read buffer. It returns 0 if the output buffer is full and it needs
Willy Tarreaue6e52362019-01-04 17:42:57 +01003459 * to be called again, otherwise non-zero. It proceeds in an isolated
3460 * thread so there is no thread safety issue here.
William Lallemand4c5b4d52016-11-21 08:51:11 +01003461 */
3462static int cli_io_handler_dump_sess(struct appctx *appctx)
3463{
3464 struct stream_interface *si = appctx->owner;
3465 struct connection *conn;
3466
Willy Tarreaue6e52362019-01-04 17:42:57 +01003467 thread_isolate();
3468
William Lallemand4c5b4d52016-11-21 08:51:11 +01003469 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW))) {
3470 /* If we're forced to shut down, we might have to remove our
3471 * reference to the last stream being dumped.
3472 */
3473 if (appctx->st2 == STAT_ST_LIST) {
3474 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users)) {
3475 LIST_DEL(&appctx->ctx.sess.bref.users);
3476 LIST_INIT(&appctx->ctx.sess.bref.users);
3477 }
3478 }
Willy Tarreaue6e52362019-01-04 17:42:57 +01003479 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003480 }
3481
3482 chunk_reset(&trash);
3483
3484 switch (appctx->st2) {
3485 case STAT_ST_INIT:
3486 /* the function had not been called yet, let's prepare the
3487 * buffer for a response. We initialize the current stream
3488 * pointer to the first in the global list. When a target
3489 * stream is being destroyed, it is responsible for updating
3490 * this pointer. We know we have reached the end when this
3491 * pointer points back to the head of the streams list.
3492 */
3493 LIST_INIT(&appctx->ctx.sess.bref.users);
3494 appctx->ctx.sess.bref.ref = streams.n;
3495 appctx->st2 = STAT_ST_LIST;
3496 /* fall through */
3497
3498 case STAT_ST_LIST:
3499 /* first, let's detach the back-ref from a possible previous stream */
3500 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users)) {
3501 LIST_DEL(&appctx->ctx.sess.bref.users);
3502 LIST_INIT(&appctx->ctx.sess.bref.users);
3503 }
3504
3505 /* and start from where we stopped */
3506 while (appctx->ctx.sess.bref.ref != &streams) {
3507 char pn[INET6_ADDRSTRLEN];
3508 struct stream *curr_strm;
3509
3510 curr_strm = LIST_ELEM(appctx->ctx.sess.bref.ref, struct stream *, list);
3511
3512 if (appctx->ctx.sess.target) {
3513 if (appctx->ctx.sess.target != (void *)-1 && appctx->ctx.sess.target != curr_strm)
3514 goto next_sess;
3515
3516 LIST_ADDQ(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
3517 /* call the proper dump() function and return if we're missing space */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003518 if (!stats_dump_full_strm_to_buffer(si, curr_strm))
3519 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003520
3521 /* stream dump complete */
3522 LIST_DEL(&appctx->ctx.sess.bref.users);
3523 LIST_INIT(&appctx->ctx.sess.bref.users);
3524 if (appctx->ctx.sess.target != (void *)-1) {
3525 appctx->ctx.sess.target = NULL;
3526 break;
3527 }
3528 else
3529 goto next_sess;
3530 }
3531
3532 chunk_appendf(&trash,
3533 "%p: proto=%s",
3534 curr_strm,
3535 strm_li(curr_strm) ? strm_li(curr_strm)->proto->name : "?");
3536
3537 conn = objt_conn(strm_orig(curr_strm));
3538 switch (conn ? addr_to_str(&conn->addr.from, pn, sizeof(pn)) : AF_UNSPEC) {
3539 case AF_INET:
3540 case AF_INET6:
3541 chunk_appendf(&trash,
3542 " src=%s:%d fe=%s be=%s srv=%s",
3543 pn,
3544 get_host_port(&conn->addr.from),
3545 strm_fe(curr_strm)->id,
3546 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
3547 objt_server(curr_strm->target) ? objt_server(curr_strm->target)->id : "<none>"
3548 );
3549 break;
3550 case AF_UNIX:
3551 chunk_appendf(&trash,
3552 " src=unix:%d fe=%s be=%s srv=%s",
3553 strm_li(curr_strm)->luid,
3554 strm_fe(curr_strm)->id,
3555 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
3556 objt_server(curr_strm->target) ? objt_server(curr_strm->target)->id : "<none>"
3557 );
3558 break;
3559 }
3560
3561 chunk_appendf(&trash,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003562 " ts=%02x age=%s calls=%u rate=%u cpu=%llu lat=%llu",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003563 curr_strm->task->state,
3564 human_time(now.tv_sec - curr_strm->logs.tv_accept.tv_sec, 1),
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003565 curr_strm->task->calls, read_freq_ctr(&curr_strm->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003566 (unsigned long long)curr_strm->task->cpu_time, (unsigned long long)curr_strm->task->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003567
3568 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003569 " rq[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003570 curr_strm->req.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003571 (unsigned int)ci_data(&curr_strm->req),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003572 curr_strm->req.analysers,
3573 curr_strm->req.rex ?
3574 human_time(TICKS_TO_MS(curr_strm->req.rex - now_ms),
3575 TICKS_TO_MS(1000)) : "");
3576
3577 chunk_appendf(&trash,
3578 ",wx=%s",
3579 curr_strm->req.wex ?
3580 human_time(TICKS_TO_MS(curr_strm->req.wex - now_ms),
3581 TICKS_TO_MS(1000)) : "");
3582
3583 chunk_appendf(&trash,
3584 ",ax=%s]",
3585 curr_strm->req.analyse_exp ?
3586 human_time(TICKS_TO_MS(curr_strm->req.analyse_exp - now_ms),
3587 TICKS_TO_MS(1000)) : "");
3588
3589 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003590 " rp[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003591 curr_strm->res.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003592 (unsigned int)ci_data(&curr_strm->res),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003593 curr_strm->res.analysers,
3594 curr_strm->res.rex ?
3595 human_time(TICKS_TO_MS(curr_strm->res.rex - now_ms),
3596 TICKS_TO_MS(1000)) : "");
3597
3598 chunk_appendf(&trash,
3599 ",wx=%s",
3600 curr_strm->res.wex ?
3601 human_time(TICKS_TO_MS(curr_strm->res.wex - now_ms),
3602 TICKS_TO_MS(1000)) : "");
3603
3604 chunk_appendf(&trash,
3605 ",ax=%s]",
3606 curr_strm->res.analyse_exp ?
3607 human_time(TICKS_TO_MS(curr_strm->res.analyse_exp - now_ms),
3608 TICKS_TO_MS(1000)) : "");
3609
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003610 conn = cs_conn(objt_cs(curr_strm->si[0].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003611 chunk_appendf(&trash,
3612 " s0=[%d,%1xh,fd=%d,ex=%s]",
3613 curr_strm->si[0].state,
3614 curr_strm->si[0].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003615 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003616 curr_strm->si[0].exp ?
3617 human_time(TICKS_TO_MS(curr_strm->si[0].exp - now_ms),
3618 TICKS_TO_MS(1000)) : "");
3619
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003620 conn = cs_conn(objt_cs(curr_strm->si[1].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003621 chunk_appendf(&trash,
3622 " s1=[%d,%1xh,fd=%d,ex=%s]",
3623 curr_strm->si[1].state,
3624 curr_strm->si[1].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003625 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003626 curr_strm->si[1].exp ?
3627 human_time(TICKS_TO_MS(curr_strm->si[1].exp - now_ms),
3628 TICKS_TO_MS(1000)) : "");
3629
3630 chunk_appendf(&trash,
3631 " exp=%s",
3632 curr_strm->task->expire ?
3633 human_time(TICKS_TO_MS(curr_strm->task->expire - now_ms),
3634 TICKS_TO_MS(1000)) : "");
3635 if (task_in_rq(curr_strm->task))
3636 chunk_appendf(&trash, " run(nice=%d)", curr_strm->task->nice);
3637
3638 chunk_appendf(&trash, "\n");
3639
Willy Tarreau06d80a92017-10-19 14:32:15 +02003640 if (ci_putchk(si_ic(si), &trash) == -1) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003641 /* let's try again later from this stream. We add ourselves into
3642 * this stream's users so that it can remove us upon termination.
3643 */
William Lallemand4c5b4d52016-11-21 08:51:11 +01003644 LIST_ADDQ(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
Willy Tarreaue6e52362019-01-04 17:42:57 +01003645 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003646 }
3647
3648 next_sess:
3649 appctx->ctx.sess.bref.ref = curr_strm->list.n;
3650 }
3651
3652 if (appctx->ctx.sess.target && appctx->ctx.sess.target != (void *)-1) {
3653 /* specified stream not found */
3654 if (appctx->ctx.sess.section > 0)
3655 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
3656 else
3657 chunk_appendf(&trash, "Session not found.\n");
3658
Willy Tarreaue6e52362019-01-04 17:42:57 +01003659 if (ci_putchk(si_ic(si), &trash) == -1)
3660 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003661
3662 appctx->ctx.sess.target = NULL;
3663 appctx->ctx.sess.uid = 0;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003664 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003665 }
William Lallemand4c5b4d52016-11-21 08:51:11 +01003666 /* fall through */
3667
3668 default:
3669 appctx->st2 = STAT_ST_FIN;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003670 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003671 }
Willy Tarreaue6e52362019-01-04 17:42:57 +01003672 done:
3673 thread_release();
3674 return 1;
3675 full:
3676 thread_release();
3677 si_rx_room_blk(si);
3678 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003679}
3680
3681static void cli_release_show_sess(struct appctx *appctx)
3682{
3683 if (appctx->st2 == STAT_ST_LIST) {
Willy Tarreau7ce3f092017-11-10 16:24:41 +01003684 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003685 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users))
3686 LIST_DEL(&appctx->ctx.sess.bref.users);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003687 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003688 }
3689}
3690
Willy Tarreau61b65212016-11-24 11:09:25 +01003691/* Parses the "shutdown session" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003692static int cli_parse_shutdown_session(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau61b65212016-11-24 11:09:25 +01003693{
3694 struct stream *strm, *ptr;
3695
3696 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3697 return 1;
3698
3699 if (!*args[2]) {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +02003700 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreau61b65212016-11-24 11:09:25 +01003701 appctx->ctx.cli.msg = "Session pointer expected (use 'show sess').\n";
Willy Tarreau3b6e5472016-11-24 15:53:53 +01003702 appctx->st0 = CLI_ST_PRINT;
Willy Tarreau61b65212016-11-24 11:09:25 +01003703 return 1;
3704 }
3705
3706 ptr = (void *)strtoul(args[2], NULL, 0);
3707
3708 /* first, look for the requested stream in the stream table */
3709 list_for_each_entry(strm, &streams, list) {
3710 if (strm == ptr)
3711 break;
3712 }
3713
3714 /* do we have the stream ? */
3715 if (strm != ptr) {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +02003716 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreau61b65212016-11-24 11:09:25 +01003717 appctx->ctx.cli.msg = "No such session (use 'show sess').\n";
Willy Tarreau3b6e5472016-11-24 15:53:53 +01003718 appctx->st0 = CLI_ST_PRINT;
Willy Tarreau61b65212016-11-24 11:09:25 +01003719 return 1;
3720 }
3721
3722 stream_shutdown(strm, SF_ERR_KILLED);
3723 return 1;
3724}
3725
Willy Tarreau4e46b622016-11-23 16:50:48 +01003726/* Parses the "shutdown session server" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003727static int cli_parse_shutdown_sessions_server(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau4e46b622016-11-23 16:50:48 +01003728{
3729 struct server *sv;
3730 struct stream *strm, *strm_bck;
3731
3732 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3733 return 1;
3734
3735 sv = cli_find_server(appctx, args[3]);
3736 if (!sv)
3737 return 1;
3738
3739 /* kill all the stream that are on this server */
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003740 HA_SPIN_LOCK(SERVER_LOCK, &sv->lock);
Willy Tarreau4e46b622016-11-23 16:50:48 +01003741 list_for_each_entry_safe(strm, strm_bck, &sv->actconns, by_srv)
3742 if (strm->srv_conn == sv)
3743 stream_shutdown(strm, SF_ERR_KILLED);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003744 HA_SPIN_UNLOCK(SERVER_LOCK, &sv->lock);
Willy Tarreau4e46b622016-11-23 16:50:48 +01003745 return 1;
3746}
3747
William Lallemand4c5b4d52016-11-21 08:51:11 +01003748/* register cli keywords */
3749static struct cli_kw_list cli_kws = {{ },{
3750 { { "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 +01003751 { { "shutdown", "session", NULL }, "shutdown session : kill a specific session", cli_parse_shutdown_session, NULL, NULL },
Willy Tarreau4e46b622016-11-23 16:50:48 +01003752 { { "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 +01003753 {{},}
3754}};
3755
Willy Tarreau0108d902018-11-25 19:14:37 +01003756INITCALL1(STG_REGISTER, cli_register_kw, &cli_kws);
3757
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003758/* main configuration keyword registration. */
3759static struct action_kw_list stream_tcp_keywords = { ILH, {
3760 { "use-service", stream_parse_use_service },
3761 { /* END */ }
3762}};
3763
Willy Tarreau0108d902018-11-25 19:14:37 +01003764INITCALL1(STG_REGISTER, tcp_req_cont_keywords_register, &stream_tcp_keywords);
3765
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003766static struct action_kw_list stream_http_keywords = { ILH, {
3767 { "use-service", stream_parse_use_service },
3768 { /* END */ }
3769}};
3770
Willy Tarreau0108d902018-11-25 19:14:37 +01003771INITCALL1(STG_REGISTER, http_req_keywords_register, &stream_http_keywords);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003772
Willy Tarreaubaaee002006-06-26 02:48:02 +02003773/*
3774 * Local variables:
3775 * c-indent-level: 8
3776 * c-basic-offset: 8
3777 * End:
3778 */