blob: 040b6019309b7894eb0866eb2e05eb3c7e764533 [file] [log] [blame]
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) {
Christopher Fauletef131ae2020-07-22 11:46:32 +0200438 __decl_hathreads(struct dns_resolvers *resolvers = s->dns_ctx.parent->arg.dns.resolvers);
439
440 HA_SPIN_LOCK(DNS_LOCK, &resolvers->lock);
Baptiste Assmann333939c2019-01-21 08:34:50 +0100441 free(s->dns_ctx.hostname_dn); s->dns_ctx.hostname_dn = NULL;
442 s->dns_ctx.hostname_dn_len = 0;
443 dns_unlink_resolution(s->dns_ctx.dns_requester);
Christopher Fauletef131ae2020-07-22 11:46:32 +0200444 HA_SPIN_UNLOCK(DNS_LOCK, &resolvers->lock);
Baptiste Assmann333939c2019-01-21 08:34:50 +0100445
446 pool_free(dns_requester_pool, s->dns_ctx.dns_requester);
447 s->dns_ctx.dns_requester = NULL;
448 }
449
Christopher Fauletd7c91962015-04-30 11:48:27 +0200450 flt_stream_stop(s);
Christopher Faulet92d36382015-11-05 13:35:03 +0100451 flt_stream_release(s, 0);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200452
Willy Tarreau92fb9832007-10-16 17:34:28 +0200453 if (fe) {
Christopher Fauletb6af6b32019-11-07 14:27:52 +0100454 if (s->req_cap) {
455 struct cap_hdr *h;
456 for (h = fe->req_cap; h; h = h->next)
457 pool_free(h->pool, s->req_cap[h->index]);
458 }
459
460 if (s->res_cap) {
461 struct cap_hdr *h;
462 for (h = fe->rsp_cap; h; h = h->next)
463 pool_free(h->pool, s->res_cap[h->index]);
464 }
465
Willy Tarreaubafbe012017-11-24 17:34:44 +0100466 pool_free(fe->rsp_cap_pool, s->res_cap);
467 pool_free(fe->req_cap_pool, s->req_cap);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200468 }
Willy Tarreau0937bc42009-12-22 15:03:09 +0100469
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200470 /* Cleanup all variable contexts. */
Willy Tarreaucda7f3f2018-10-28 13:44:36 +0100471 if (!LIST_ISEMPTY(&s->vars_txn.head))
472 vars_prune(&s->vars_txn, s->sess, s);
473 if (!LIST_ISEMPTY(&s->vars_reqres.head))
474 vars_prune(&s->vars_reqres, s->sess, s);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200475
Willy Tarreau87b09662015-04-03 00:22:06 +0200476 stream_store_counters(s);
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +0200477
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100478 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100479 list_for_each_entry_safe(bref, back, &s->back_refs, users) {
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100480 /* we have to unlink all watchers. We must not relink them if
Willy Tarreau87b09662015-04-03 00:22:06 +0200481 * this stream was the last one in the list.
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100482 */
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100483 LIST_DEL(&bref->users);
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100484 LIST_INIT(&bref->users);
Willy Tarreau87b09662015-04-03 00:22:06 +0200485 if (s->list.n != &streams)
486 LIST_ADDQ(&LIST_ELEM(s->list.n, struct stream *, list)->back_refs, &bref->users);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100487 bref->ref = s->list.n;
488 }
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100489 LIST_DEL(&s->list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100490 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200491
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100492 /* applets do not release session yet */
493 must_free_sess = objt_appctx(sess->origin) && sess->origin == s->si[0].end;
494
Olivier Houchard4fdec7a2018-10-11 17:09:14 +0200495
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200496 si_release_endpoint(&s->si[1]);
497 si_release_endpoint(&s->si[0]);
Willy Tarreaufeb76402015-04-03 14:10:06 +0200498
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200499 tasklet_free(s->si[0].wait_event.tasklet);
500 tasklet_free(s->si[1].wait_event.tasklet);
Olivier Houchardd7bd3e32018-10-18 16:22:02 +0200501
Olivier Houcharda254a372019-04-05 15:30:12 +0200502 b_free(&s->si[1].l7_buffer);
Olivier Houchard25607af2018-11-23 14:50:47 +0100503 if (must_free_sess) {
504 sess->origin = NULL;
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100505 session_free(sess);
Olivier Houchard25607af2018-11-23 14:50:47 +0100506 }
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100507
Willy Tarreaubafbe012017-11-24 17:34:44 +0100508 pool_free(pool_head_stream, s);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200509
510 /* We may want to free the maximum amount of pools if the proxy is stopping */
Willy Tarreau92fb9832007-10-16 17:34:28 +0200511 if (fe && unlikely(fe->state == PR_STSTOPPED)) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100512 pool_flush(pool_head_buffer);
513 pool_flush(pool_head_http_txn);
514 pool_flush(pool_head_hdr_idx);
515 pool_flush(pool_head_requri);
516 pool_flush(pool_head_capture);
517 pool_flush(pool_head_stream);
518 pool_flush(pool_head_session);
519 pool_flush(pool_head_connection);
520 pool_flush(pool_head_pendconn);
521 pool_flush(fe->req_cap_pool);
522 pool_flush(fe->rsp_cap_pool);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200523 }
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200524}
525
Willy Tarreau656859d2014-11-25 19:46:36 +0100526
Willy Tarreau87b09662015-04-03 00:22:06 +0200527/* Allocates a work buffer for stream <s>. It is meant to be called inside
528 * process_stream(). It will only allocate the side needed for the function
Willy Tarreaubc39a5d2015-04-20 15:52:18 +0200529 * to work fine, which is the response buffer so that an error message may be
530 * built and returned. Response buffers may be allocated from the reserve, this
531 * is critical to ensure that a response may always flow and will never block a
532 * server from releasing a connection. Returns 0 in case of failure, non-zero
533 * otherwise.
Willy Tarreau656859d2014-11-25 19:46:36 +0100534 */
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100535static int stream_alloc_work_buffer(struct stream *s)
Willy Tarreau656859d2014-11-25 19:46:36 +0100536{
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100537 if (!LIST_ISEMPTY(&s->buffer_wait.list)) {
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100538 HA_SPIN_LOCK(BUF_WQ_LOCK, &buffer_wq_lock);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100539 LIST_DEL(&s->buffer_wait.list);
540 LIST_INIT(&s->buffer_wait.list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100541 HA_SPIN_UNLOCK(BUF_WQ_LOCK, &buffer_wq_lock);
Willy Tarreaubf883e02014-11-25 21:10:35 +0100542 }
Willy Tarreau656859d2014-11-25 19:46:36 +0100543
Willy Tarreaubc39a5d2015-04-20 15:52:18 +0200544 if (b_alloc_margin(&s->res.buf, 0))
Willy Tarreau656859d2014-11-25 19:46:36 +0100545 return 1;
546
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100547 HA_SPIN_LOCK(BUF_WQ_LOCK, &buffer_wq_lock);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100548 LIST_ADDQ(&buffer_wq, &s->buffer_wait.list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100549 HA_SPIN_UNLOCK(BUF_WQ_LOCK, &buffer_wq_lock);
Willy Tarreau656859d2014-11-25 19:46:36 +0100550 return 0;
551}
552
553/* releases unused buffers after processing. Typically used at the end of the
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100554 * update() functions. It will try to wake up as many tasks/applets as the
555 * number of buffers that it releases. In practice, most often streams are
556 * blocked on a single buffer, so it makes sense to try to wake two up when two
557 * buffers are released at once.
Willy Tarreau656859d2014-11-25 19:46:36 +0100558 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200559void stream_release_buffers(struct stream *s)
Willy Tarreau656859d2014-11-25 19:46:36 +0100560{
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100561 int offer = 0;
Willy Tarreau656859d2014-11-25 19:46:36 +0100562
Willy Tarreau0c7ed5d2018-07-10 09:53:31 +0200563 if (c_size(&s->req) && c_empty(&s->req)) {
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100564 offer = 1;
565 b_free(&s->req.buf);
566 }
Willy Tarreau0c7ed5d2018-07-10 09:53:31 +0200567 if (c_size(&s->res) && c_empty(&s->res)) {
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100568 offer = 1;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100569 b_free(&s->res.buf);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100570 }
Willy Tarreau656859d2014-11-25 19:46:36 +0100571
Willy Tarreaubf883e02014-11-25 21:10:35 +0100572 /* if we're certain to have at least 1 buffer available, and there is
573 * someone waiting, we can wake up a waiter and offer them.
574 */
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100575 if (offer)
Olivier Houchard673867c2018-05-25 16:58:52 +0200576 offer_buffers(s, tasks_run_queue);
Willy Tarreau656859d2014-11-25 19:46:36 +0100577}
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200578
Willy Tarreau87b09662015-04-03 00:22:06 +0200579void stream_process_counters(struct stream *s)
Willy Tarreau30e71012007-11-26 20:15:35 +0100580{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200581 struct session *sess = s->sess;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100582 unsigned long long bytes;
Emeric Brun57056f02015-06-15 18:29:57 +0200583 void *ptr1,*ptr2;
Emeric Brun819fc6f2017-06-13 19:37:32 +0200584 struct stksess *ts;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100585 int i;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100586
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100587 bytes = s->req.total - s->logs.bytes_in;
588 s->logs.bytes_in = s->req.total;
589 if (bytes) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100590 _HA_ATOMIC_ADD(&sess->fe->fe_counters.bytes_in, bytes);
591 _HA_ATOMIC_ADD(&s->be->be_counters.bytes_in, bytes);
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100592
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100593 if (objt_server(s->target))
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100594 _HA_ATOMIC_ADD(&objt_server(s->target)->counters.bytes_in, bytes);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200595
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200596 if (sess->listener && sess->listener->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100597 _HA_ATOMIC_ADD(&sess->listener->counters->bytes_in, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200598
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100599 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200600 struct stkctr *stkctr = &s->stkctr[i];
601
Emeric Brun819fc6f2017-06-13 19:37:32 +0200602 ts = stkctr_entry(stkctr);
603 if (!ts) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200604 stkctr = &sess->stkctr[i];
Emeric Brun819fc6f2017-06-13 19:37:32 +0200605 ts = stkctr_entry(stkctr);
606 if (!ts)
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200607 continue;
608 }
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200609
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100610 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun819fc6f2017-06-13 19:37:32 +0200611 ptr1 = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_BYTES_IN_CNT);
Emeric Brun57056f02015-06-15 18:29:57 +0200612 if (ptr1)
613 stktable_data_cast(ptr1, bytes_in_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200614
Emeric Brun819fc6f2017-06-13 19:37:32 +0200615 ptr2 = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_BYTES_IN_RATE);
Emeric Brun57056f02015-06-15 18:29:57 +0200616 if (ptr2)
617 update_freq_ctr_period(&stktable_data_cast(ptr2, bytes_in_rate),
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200618 stkctr->table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u, bytes);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100619 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun57056f02015-06-15 18:29:57 +0200620
621 /* If data was modified, we need to touch to re-schedule sync */
622 if (ptr1 || ptr2)
Emeric Brun819fc6f2017-06-13 19:37:32 +0200623 stktable_touch_local(stkctr->table, ts, 0);
Willy Tarreau30e71012007-11-26 20:15:35 +0100624 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100625 }
626
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100627 bytes = s->res.total - s->logs.bytes_out;
628 s->logs.bytes_out = s->res.total;
629 if (bytes) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100630 _HA_ATOMIC_ADD(&sess->fe->fe_counters.bytes_out, bytes);
631 _HA_ATOMIC_ADD(&s->be->be_counters.bytes_out, bytes);
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100632
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100633 if (objt_server(s->target))
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100634 _HA_ATOMIC_ADD(&objt_server(s->target)->counters.bytes_out, bytes);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200635
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200636 if (sess->listener && sess->listener->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100637 _HA_ATOMIC_ADD(&sess->listener->counters->bytes_out, bytes);
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200638
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100639 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200640 struct stkctr *stkctr = &s->stkctr[i];
641
Emeric Brun819fc6f2017-06-13 19:37:32 +0200642 ts = stkctr_entry(stkctr);
643 if (!ts) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200644 stkctr = &sess->stkctr[i];
Emeric Brun819fc6f2017-06-13 19:37:32 +0200645 ts = stkctr_entry(stkctr);
646 if (!ts)
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200647 continue;
648 }
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200649
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100650 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun819fc6f2017-06-13 19:37:32 +0200651 ptr1 = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_BYTES_OUT_CNT);
Emeric Brun57056f02015-06-15 18:29:57 +0200652 if (ptr1)
653 stktable_data_cast(ptr1, bytes_out_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200654
Emeric Brun819fc6f2017-06-13 19:37:32 +0200655 ptr2 = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_BYTES_OUT_RATE);
Emeric Brun57056f02015-06-15 18:29:57 +0200656 if (ptr2)
657 update_freq_ctr_period(&stktable_data_cast(ptr2, bytes_out_rate),
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200658 stkctr->table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u, bytes);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100659 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun57056f02015-06-15 18:29:57 +0200660
661 /* If data was modified, we need to touch to re-schedule sync */
662 if (ptr1 || ptr2)
Emeric Brun819fc6f2017-06-13 19:37:32 +0200663 stktable_touch_local(stkctr->table, stkctr_entry(stkctr), 0);
Willy Tarreau30e71012007-11-26 20:15:35 +0100664 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100665 }
666}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200667
Willy Tarreaud66ed882019-06-05 18:02:04 +0200668/* This function is called with (si->state == SI_ST_CON) meaning that a
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100669 * connection was attempted and that the file descriptor is already allocated.
Willy Tarreaud66ed882019-06-05 18:02:04 +0200670 * We must check for timeout, error and abort. Possible output states are
671 * SI_ST_CER (error), SI_ST_DIS (abort), and SI_ST_CON (no change). This only
672 * works with connection-based streams. We know that there were no I/O event
673 * when reaching this function. Timeouts and errors are *not* cleared.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100674 */
Willy Tarreaud66ed882019-06-05 18:02:04 +0200675static void sess_update_st_con_tcp(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100676{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100677 struct stream_interface *si = &s->si[1];
678 struct channel *req = &s->req;
679 struct channel *rep = &s->res;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100680
Willy Tarreaud66ed882019-06-05 18:02:04 +0200681 /* the client might want to abort */
682 if ((rep->flags & CF_SHUTW) ||
683 ((req->flags & CF_SHUTW_NOW) &&
684 (channel_is_empty(req) || (s->be->options & PR_O_ABRT_CLOSE)))) {
685 si->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +0200686 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100687 si->err_type |= SI_ET_CONN_ABRT;
Willy Tarreau84455332009-03-15 22:34:05 +0100688 if (s->srv_error)
689 s->srv_error(s, si);
Willy Tarreaud66ed882019-06-05 18:02:04 +0200690 /* Note: state = SI_ST_DIS now */
691 return;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100692 }
693
Willy Tarreaud66ed882019-06-05 18:02:04 +0200694 /* retryable error ? */
695 if (si->flags & (SI_FL_EXP|SI_FL_ERR)) {
Willy Tarreau7b69c912020-05-21 15:50:54 +0200696 si_release_endpoint(si);
Christopher Faulet7a3367c2019-05-09 11:46:52 +0200697
Willy Tarreaud66ed882019-06-05 18:02:04 +0200698 if (!si->err_type) {
699 if (si->flags & SI_FL_ERR)
700 si->err_type = SI_ET_CONN_ERR;
701 else
702 si->err_type = SI_ET_CONN_TO;
703 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100704
Willy Tarreaud66ed882019-06-05 18:02:04 +0200705 si->state = SI_ST_CER;
706 return;
707 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100708}
709
710/* This function is called with (si->state == SI_ST_CER) meaning that a
711 * previous connection attempt has failed and that the file descriptor
712 * has already been released. Possible causes include asynchronous error
713 * notification and time out. Possible output states are SI_ST_CLO when
714 * retries are exhausted, SI_ST_TAR when a delay is wanted before a new
715 * connection attempt, SI_ST_ASS when it's wise to retry on the same server,
716 * and SI_ST_REQ when an immediate redispatch is wanted. The buffers are
Willy Tarreaud66ed882019-06-05 18:02:04 +0200717 * marked as in error state. Timeouts and errors are cleared before retrying.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100718 */
Willy Tarreaud66ed882019-06-05 18:02:04 +0200719static void sess_update_st_cer(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100720{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100721 struct stream_interface *si = &s->si[1];
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200722 struct conn_stream *cs = objt_cs(si->end);
723 struct connection *conn = cs_conn(cs);
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100724
Willy Tarreaud66ed882019-06-05 18:02:04 +0200725 si->exp = TICK_ETERNITY;
726 si->flags &= ~SI_FL_EXP;
727
Willy Tarreau87b09662015-04-03 00:22:06 +0200728 /* we probably have to release last stream from the server */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100729 if (objt_server(s->target)) {
730 health_adjust(objt_server(s->target), HANA_STATUS_L4_ERR);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100731
Willy Tarreaue7dff022015-04-03 01:14:29 +0200732 if (s->flags & SF_CURR_SESS) {
733 s->flags &= ~SF_CURR_SESS;
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100734 _HA_ATOMIC_SUB(&__objt_server(s->target)->cur_sess, 1);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100735 }
Willy Tarreau46d5b082017-07-26 20:13:37 +0200736
737 if ((si->flags & SI_FL_ERR) &&
738 conn && conn->err_code == CO_ER_SSL_MISMATCH_SNI) {
739 /* We tried to connect to a server which is configured
740 * with "verify required" and which doesn't have the
741 * "verifyhost" directive. The server presented a wrong
742 * certificate (a certificate for an unexpected name),
743 * which implies that we have used SNI in the handshake,
744 * and that the server doesn't have the associated cert
745 * and presented a default one.
746 *
747 * This is a serious enough issue not to retry. It's
748 * especially important because this wrong name might
749 * either be the result of a configuration error, and
750 * retrying will only hammer the server, or is caused
751 * by the use of a wrong SNI value, most likely
752 * provided by the client and we don't want to let the
753 * client provoke retries.
754 */
755 si->conn_retries = 0;
756 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100757 }
Christopher Fauletd982a8e2020-07-09 16:07:06 +0200758 else if (s->be->options & PR_O_HTTP_PROXY) {
759 /*
760 * Disable connection retries on plain HTTP proxy mode, because
761 * on connection failure, the connection is detached from the SI
762 * and released. So the address is definitely lost. It is a 2.0
763 * limitation only. Disabling connection retries is the easiest
764 * way to work around this limitation in this very particular
765 * case (and no so common). Try the 2.2 if it is a problem (or
766 * report a bug).
767 */
768 if (!si->end) /* endpoint already detached */
769 si->conn_retries = 0;
770 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100771
772 /* ensure that we have enough retries left */
Willy Tarreauee28de02010-06-01 09:51:00 +0200773 si->conn_retries--;
Olivier Houcharda254a372019-04-05 15:30:12 +0200774 if (si->conn_retries < 0 || !(s->be->retry_type & PR_RE_CONN_FAILED)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100775 if (!si->err_type) {
776 si->err_type = SI_ET_CONN_ERR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100777 }
778
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100779 if (objt_server(s->target))
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100780 _HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_conns, 1);
781 _HA_ATOMIC_ADD(&s->be->be_counters.failed_conns, 1);
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100782 sess_change_server(s, NULL);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100783 if (may_dequeue_tasks(objt_server(s->target), s->be))
784 process_srv_queue(objt_server(s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100785
786 /* shutw is enough so stop a connecting socket */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200787 si_shutw(si);
Willy Tarreau103197d2014-11-28 15:26:12 +0100788 s->req.flags |= CF_WRITE_ERROR;
789 s->res.flags |= CF_READ_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100790
791 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100792 if (s->srv_error)
793 s->srv_error(s, si);
Willy Tarreaud66ed882019-06-05 18:02:04 +0200794 return;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100795 }
796
Olivier Houchard530249c2019-07-12 16:16:59 +0200797 stream_choose_redispatch(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100798
799 if (si->flags & SI_FL_ERR) {
800 /* The error was an asynchronous connection error, and we will
801 * likely have to retry connecting to the same server, most
802 * likely leading to the same result. To avoid this, we wait
Willy Tarreauf7a259d2019-01-23 16:29:53 +0100803 * MIN(one second, connect timeout) before retrying. We don't
804 * do it when the failure happened on a reused connection
805 * though.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100806 */
807
Willy Tarreaub0290662014-06-13 17:04:44 +0200808 int delay = 1000;
809
810 if (s->be->timeout.connect && s->be->timeout.connect < delay)
811 delay = s->be->timeout.connect;
812
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100813 if (!si->err_type)
814 si->err_type = SI_ET_CONN_ERR;
815
Willy Tarreaudb6d0122014-06-13 17:40:15 +0200816 /* only wait when we're retrying on the same server */
Willy Tarreauf7a259d2019-01-23 16:29:53 +0100817 if ((si->state == SI_ST_ASS ||
818 (s->be->lbprm.algo & BE_LB_KIND) != BE_LB_KIND_RR ||
819 (s->be->srv_act <= 1)) && !(s->flags & SF_SRV_REUSED)) {
Willy Tarreaudb6d0122014-06-13 17:40:15 +0200820 si->state = SI_ST_TAR;
821 si->exp = tick_add(now_ms, MS_TO_TICKS(delay));
822 }
Olivier Houchard39cc0202019-04-09 19:12:51 +0200823 si->flags &= ~SI_FL_ERR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100824 }
Willy Tarreaud66ed882019-06-05 18:02:04 +0200825}
826
827/* This function is called with (si->state == SI_ST_RDY) meaning that a
828 * connection was attempted, that the file descriptor is already allocated,
829 * and that it has succeeded. We must still check for errors and aborts.
830 * Possible output states are SI_ST_EST (established), SI_ST_CER (error),
831 * and SI_ST_DIS (abort). This only works with connection-based streams.
832 * Timeouts and errors are *not* cleared.
833 */
834static void sess_update_st_rdy_tcp(struct stream *s)
835{
836 struct stream_interface *si = &s->si[1];
837 struct channel *req = &s->req;
838 struct channel *rep = &s->res;
Willy Tarreaud66ed882019-06-05 18:02:04 +0200839
840 /* We know the connection at least succeeded, though it could have
841 * since met an error for any other reason. At least it didn't time out
842 * eventhough the timeout might have been reported right after success.
843 * We need to take care of various situations here :
844 * - everything might be OK. We have to switch to established.
845 * - an I/O error might have been reported after a successful transfer,
846 * which is not retryable and needs to be logged correctly, and needs
847 * established as well
848 * - SI_ST_CON implies !CF_WROTE_DATA but not conversely as we could
849 * have validated a connection with incoming data (e.g. TCP with a
850 * banner protocol), or just a successful connect() probe.
851 * - the client might have requested a connection abort, this needs to
852 * be checked before we decide to retry anything.
853 */
854
855 /* it's still possible to handle client aborts or connection retries
856 * before any data were sent.
857 */
858 if (!(req->flags & CF_WROTE_DATA)) {
859 /* client abort ? */
860 if ((rep->flags & CF_SHUTW) ||
861 ((req->flags & CF_SHUTW_NOW) &&
862 (channel_is_empty(req) || (s->be->options & PR_O_ABRT_CLOSE)))) {
863 /* give up */
864 si->flags |= SI_FL_NOLINGER;
865 si_shutw(si);
866 si->err_type |= SI_ET_CONN_ABRT;
867 if (s->srv_error)
868 s->srv_error(s, si);
869 return;
870 }
871
872 /* retryable error ? */
873 if (si->flags & SI_FL_ERR) {
Willy Tarreau7b69c912020-05-21 15:50:54 +0200874 si_release_endpoint(si);
Willy Tarreaud66ed882019-06-05 18:02:04 +0200875
876 if (!si->err_type)
877 si->err_type = SI_ET_CONN_ERR;
878 si->state = SI_ST_CER;
879 return;
880 }
881 }
882
883 /* data were sent and/or we had no error, sess_establish() will
884 * now take over.
885 */
886 si->err_type = SI_ET_NONE;
887 si->state = SI_ST_EST;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100888}
889
890/*
891 * This function handles the transition between the SI_ST_CON state and the
Willy Tarreau85e7d002010-05-31 11:57:51 +0200892 * SI_ST_EST state. It must only be called after switching from SI_ST_CON (or
Willy Tarreau4f283fa2019-06-05 14:34:03 +0200893 * 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 +0200894 * Note that it will switch the interface to SI_ST_DIS if we already have
895 * the CF_SHUTR flag, it means we were able to forward the request, and
896 * receive the response, before process_stream() had the opportunity to
897 * make the switch from SI_ST_CON to SI_ST_EST. When that happens, we want
898 * to go through sess_establish() anyway, to make sure the analysers run.
Willy Tarreaud66ed882019-06-05 18:02:04 +0200899 * Timeouts are cleared. Error are reported on the channel so that analysers
900 * can handle them.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100901 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200902static void sess_establish(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100903{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100904 struct stream_interface *si = &s->si[1];
Willy Tarreaud66ed882019-06-05 18:02:04 +0200905 struct conn_stream *srv_cs = objt_cs(si->end);
906 struct connection *conn = srv_cs ? srv_cs->conn : objt_conn(si->end);
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100907 struct channel *req = &s->req;
908 struct channel *rep = &s->res;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100909
Willy Tarreaud66ed882019-06-05 18:02:04 +0200910 /* First, centralize the timers information, and clear any irrelevant
911 * timeout.
912 */
Willy Tarreau0e37f1c2013-12-31 23:06:46 +0100913 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreaud66ed882019-06-05 18:02:04 +0200914 si->exp = TICK_ETERNITY;
915 si->flags &= ~SI_FL_EXP;
916
917 /* errors faced after sending data need to be reported */
918 if (si->flags & SI_FL_ERR && req->flags & CF_WROTE_DATA) {
919 /* Don't add CF_WRITE_ERROR if we're here because
920 * early data were rejected by the server, or
921 * http_wait_for_response() will never be called
922 * to send a 425.
923 */
924 if (conn && conn->err_code != CO_ER_SSL_EARLY_FAILED)
925 req->flags |= CF_WRITE_ERROR;
926 rep->flags |= CF_READ_ERROR;
927 si->err_type = SI_ET_DATA_ERR;
928 }
929
930 /* If the request channel is waiting for the connect(), we mark the read
931 * side as attached on the response channel and we wake up it once. So
932 * it will have a chance to forward data now.
933 */
934 if (req->flags & CF_WAKE_CONNECT) {
935 req->flags |= CF_WAKE_ONCE;
936 req->flags &= ~CF_WAKE_CONNECT;
937 }
Willy Tarreau0e37f1c2013-12-31 23:06:46 +0100938
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100939 if (objt_server(s->target))
940 health_adjust(objt_server(s->target), HANA_STATUS_L4_OK);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100941
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100942 if (s->be->mode == PR_MODE_TCP) { /* let's allow immediate data connection in this case */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100943 /* if the user wants to log as soon as possible, without counting
944 * bytes from the server, then this is the right moment. */
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200945 if (!LIST_ISEMPTY(&strm_fe(s)->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau66425e32018-07-25 06:55:12 +0200946 /* note: no pend_pos here, session is established */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100947 s->logs.t_close = s->logs.t_connect; /* to get a valid end date */
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100948 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100949 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100950 }
951 else {
Willy Tarreaud81ca042013-12-31 22:33:13 +0100952 rep->flags |= CF_READ_DONTWAIT; /* a single read is enough to get response headers */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100953 }
954
Willy Tarreau0007d0a2018-12-11 18:01:38 +0100955 rep->analysers |= strm_fe(s)->fe_rsp_ana | s->be->be_rsp_ana;
Christopher Faulet309c6412015-12-02 09:57:32 +0100956
Willy Tarreau0007d0a2018-12-11 18:01:38 +0100957 /* Be sure to filter response headers if the backend is an HTTP proxy
958 * and if there are filters attached to the stream. */
959 if (s->be->mode == PR_MODE_HTTP && HAS_FILTERS(s))
960 rep->analysers |= AN_RES_FLT_HTTP_HDRS;
Christopher Faulet309c6412015-12-02 09:57:32 +0100961
Willy Tarreau8bb2ffb2018-11-14 17:54:13 +0100962 si_rx_endp_more(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200963 rep->flags |= CF_READ_ATTACHED; /* producer is now attached */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200964 if (objt_cs(si->end)) {
Willy Tarreaud04e8582010-05-31 12:31:35 +0200965 /* real connections have timeouts */
966 req->wto = s->be->timeout.server;
967 rep->rto = s->be->timeout.server;
Olivier Houchard47e9a1a2018-11-07 17:55:19 +0100968 /* The connection is now established, try to read data from the
969 * underlying layer, and subscribe to recv events. We use a
970 * delayed recv here to give a chance to the data to flow back
971 * by the time we process other tasks.
972 */
973 si_chk_rcv(si);
Willy Tarreaud04e8582010-05-31 12:31:35 +0200974 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100975 req->wex = TICK_ETERNITY;
Olivier Houchard21a796c2019-07-26 14:54:34 +0200976 /* If we managed to get the whole response, and we don't have anything
977 * left to send, or can't, switch to SI_ST_DIS now. */
978 if (rep->flags & (CF_SHUTR | CF_SHUTW))
Olivier Houchardaacc4052019-05-21 17:43:50 +0200979 si->state = SI_ST_DIS;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100980}
981
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -0700982/* Check if the connection request is in such a state that it can be aborted. */
983static int check_req_may_abort(struct channel *req, struct stream *s)
984{
985 return ((req->flags & (CF_READ_ERROR)) ||
Willy Tarreaud651ba12018-01-12 10:42:12 +0100986 ((req->flags & (CF_SHUTW_NOW|CF_SHUTW)) && /* empty and client aborted */
Christopher Faulet769d0e92019-03-22 14:23:18 +0100987 (channel_is_empty(req) || (s->be->options & PR_O_ABRT_CLOSE))));
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -0700988}
989
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100990/* Update back stream interface status for input states SI_ST_ASS, SI_ST_QUE,
991 * SI_ST_TAR. Other input states are simply ignored.
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +0100992 * Possible output states are SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ, SI_ST_CON
993 * and SI_ST_EST. Flags must have previously been updated for timeouts and other
994 * conditions.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100995 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200996static void sess_update_stream_int(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100997{
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100998 struct server *srv = objt_server(s->target);
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100999 struct stream_interface *si = &s->si[1];
Willy Tarreau103197d2014-11-28 15:26:12 +01001000 struct channel *req = &s->req;
Willy Tarreau827aee92011-03-10 16:55:02 +01001001
Christopher Faulet45073512018-07-20 10:16:29 +02001002 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 +01001003 now_ms, __FUNCTION__,
1004 s,
CJ Ess6eac32e2015-05-02 16:35:24 -04001005 req, &s->res,
Willy Tarreau103197d2014-11-28 15:26:12 +01001006 req->rex, s->res.wex,
1007 req->flags, s->res.flags,
Christopher Faulet45073512018-07-20 10:16:29 +02001008 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 +01001009
1010 if (si->state == SI_ST_ASS) {
1011 /* Server assigned to connection request, we have to try to connect now */
1012 int conn_err;
1013
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -07001014 /* Before we try to initiate the connection, see if the
1015 * request may be aborted instead.
1016 */
1017 if (check_req_may_abort(req, s)) {
1018 si->err_type |= SI_ET_CONN_ABRT;
1019 goto abort_connection;
1020 }
1021
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001022 conn_err = connect_server(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001023 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01001024
Willy Tarreaue7dff022015-04-03 01:14:29 +02001025 if (conn_err == SF_ERR_NONE) {
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +01001026 /* state = SI_ST_CON or SI_ST_EST now */
Willy Tarreau827aee92011-03-10 16:55:02 +01001027 if (srv)
1028 srv_inc_sess_ctr(srv);
Bhaskar Maddalaa20cb852014-02-03 16:26:46 -05001029 if (srv)
1030 srv_set_sess_last(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001031 return;
1032 }
1033
1034 /* We have received a synchronous error. We might have to
1035 * abort, retry immediately or redispatch.
1036 */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001037 if (conn_err == SF_ERR_INTERNAL) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001038 if (!si->err_type) {
1039 si->err_type = SI_ET_CONN_OTHER;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001040 }
1041
Willy Tarreau827aee92011-03-10 16:55:02 +01001042 if (srv)
1043 srv_inc_sess_ctr(srv);
1044 if (srv)
Bhaskar Maddalaa20cb852014-02-03 16:26:46 -05001045 srv_set_sess_last(srv);
1046 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001047 _HA_ATOMIC_ADD(&srv->counters.failed_conns, 1);
1048 _HA_ATOMIC_ADD(&s->be->be_counters.failed_conns, 1);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001049
Willy Tarreau87b09662015-04-03 00:22:06 +02001050 /* release other streams waiting for this server */
Willy Tarreaub89cfca2010-12-29 14:32:28 +01001051 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001052 if (may_dequeue_tasks(srv, s->be))
1053 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001054
1055 /* Failed and not retryable. */
Willy Tarreau73b013b2012-05-21 16:31:45 +02001056 si_shutr(si);
1057 si_shutw(si);
Willy Tarreau103197d2014-11-28 15:26:12 +01001058 req->flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001059
1060 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1061
Willy Tarreau66425e32018-07-25 06:55:12 +02001062 /* we may need to know the position in the queue for logging */
1063 pendconn_cond_unlink(s->pend_pos);
1064
Willy Tarreau87b09662015-04-03 00:22:06 +02001065 /* no stream was ever accounted for this server */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001066 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001067 if (s->srv_error)
1068 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001069 return;
1070 }
1071
1072 /* We are facing a retryable error, but we don't want to run a
1073 * turn-around now, as the problem is likely a source port
1074 * allocation problem, so we want to retry now.
1075 */
1076 si->state = SI_ST_CER;
1077 si->flags &= ~SI_FL_ERR;
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01001078 sess_update_st_cer(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001079 /* now si->state is one of SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ */
1080 return;
1081 }
1082 else if (si->state == SI_ST_QUE) {
1083 /* connection request was queued, check for any update */
Christopher Faulet5cd4bbd2018-03-14 16:18:06 +01001084 if (!pendconn_dequeue(s)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001085 /* The connection is not in the queue anymore. Either
1086 * we have a server connection slot available and we
1087 * go directly to the assigned state, or we need to
1088 * load-balance first and go to the INI state.
1089 */
1090 si->exp = TICK_ETERNITY;
Willy Tarreaue7dff022015-04-03 01:14:29 +02001091 if (unlikely(!(s->flags & SF_ASSIGNED)))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001092 si->state = SI_ST_REQ;
1093 else {
1094 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1095 si->state = SI_ST_ASS;
1096 }
1097 return;
1098 }
1099
1100 /* Connection request still in queue... */
1101 if (si->flags & SI_FL_EXP) {
1102 /* ... and timeout expired */
1103 si->exp = TICK_ETERNITY;
Willy Tarreaud66ed882019-06-05 18:02:04 +02001104 si->flags &= ~SI_FL_EXP;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001105 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau66425e32018-07-25 06:55:12 +02001106
1107 /* we may need to know the position in the queue for logging */
1108 pendconn_cond_unlink(s->pend_pos);
1109
Willy Tarreau827aee92011-03-10 16:55:02 +01001110 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001111 _HA_ATOMIC_ADD(&srv->counters.failed_conns, 1);
1112 _HA_ATOMIC_ADD(&s->be->be_counters.failed_conns, 1);
Willy Tarreau73b013b2012-05-21 16:31:45 +02001113 si_shutr(si);
1114 si_shutw(si);
Willy Tarreau103197d2014-11-28 15:26:12 +01001115 req->flags |= CF_WRITE_TIMEOUT;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001116 if (!si->err_type)
1117 si->err_type = SI_ET_QUEUE_TO;
1118 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001119 if (s->srv_error)
1120 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001121 return;
1122 }
1123
1124 /* Connection remains in queue, check if we have to abort it */
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -07001125 if (check_req_may_abort(req, s)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001126 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau66425e32018-07-25 06:55:12 +02001127
1128 /* we may need to know the position in the queue for logging */
1129 pendconn_cond_unlink(s->pend_pos);
1130
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001131 si->err_type |= SI_ET_QUEUE_ABRT;
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -07001132 goto abort_connection;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001133 }
1134
1135 /* Nothing changed */
1136 return;
1137 }
1138 else if (si->state == SI_ST_TAR) {
1139 /* Connection request might be aborted */
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -07001140 if (check_req_may_abort(req, s)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001141 si->err_type |= SI_ET_CONN_ABRT;
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -07001142 goto abort_connection;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001143 }
1144
1145 if (!(si->flags & SI_FL_EXP))
1146 return; /* still in turn-around */
1147
Olivier Houchard86dcad62019-04-09 19:17:41 +02001148 si->flags &= ~SI_FL_EXP;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001149 si->exp = TICK_ETERNITY;
1150
Willy Tarreau87b09662015-04-03 00:22:06 +02001151 /* we keep trying on the same server as long as the stream is
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001152 * marked "assigned".
1153 * FIXME: Should we force a redispatch attempt when the server is down ?
1154 */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001155 if (s->flags & SF_ASSIGNED)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001156 si->state = SI_ST_ASS;
1157 else
1158 si->state = SI_ST_REQ;
1159 return;
1160 }
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -07001161 return;
1162
1163abort_connection:
1164 /* give up */
1165 si->exp = TICK_ETERNITY;
Willy Tarreaud66ed882019-06-05 18:02:04 +02001166 si->flags &= ~SI_FL_EXP;
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -07001167 si_shutr(si);
1168 si_shutw(si);
1169 si->state = SI_ST_CLO;
1170 if (s->srv_error)
1171 s->srv_error(s, si);
1172 return;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001173}
1174
Willy Tarreau87b09662015-04-03 00:22:06 +02001175/* Set correct stream termination flags in case no analyser has done it. It
Simon Hormandec5be42011-06-08 09:19:07 +09001176 * also counts a failed request if the server state has not reached the request
1177 * stage.
1178 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001179static void sess_set_term_flags(struct stream *s)
Simon Hormandec5be42011-06-08 09:19:07 +09001180{
Willy Tarreaue7dff022015-04-03 01:14:29 +02001181 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001182 if (s->si[1].state == SI_ST_INI) {
1183 /* anything before REQ in fact */
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001184 _HA_ATOMIC_ADD(&strm_fe(s)->fe_counters.failed_req, 1);
Willy Tarreau2c1068c2015-09-23 12:21:21 +02001185 if (strm_li(s) && strm_li(s)->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001186 _HA_ATOMIC_ADD(&strm_li(s)->counters->failed_req, 1);
Simon Hormandec5be42011-06-08 09:19:07 +09001187
Willy Tarreaue7dff022015-04-03 01:14:29 +02001188 s->flags |= SF_FINST_R;
Simon Hormandec5be42011-06-08 09:19:07 +09001189 }
1190 else if (s->si[1].state == SI_ST_QUE)
Willy Tarreaue7dff022015-04-03 01:14:29 +02001191 s->flags |= SF_FINST_Q;
Willy Tarreau4f283fa2019-06-05 14:34:03 +02001192 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 +02001193 s->flags |= SF_FINST_C;
Simon Hormandec5be42011-06-08 09:19:07 +09001194 else if (s->si[1].state == SI_ST_EST || s->si[1].prev_state == SI_ST_EST)
Willy Tarreaue7dff022015-04-03 01:14:29 +02001195 s->flags |= SF_FINST_D;
Simon Hormandec5be42011-06-08 09:19:07 +09001196 else
Willy Tarreaue7dff022015-04-03 01:14:29 +02001197 s->flags |= SF_FINST_L;
Simon Hormandec5be42011-06-08 09:19:07 +09001198 }
1199}
1200
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001201/* This function initiates a server connection request on a stream interface
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001202 * already in SI_ST_REQ state. Upon success, the state goes to SI_ST_ASS for
1203 * a real connection to a server, indicating that a server has been assigned,
1204 * or SI_ST_EST for a successful connection to an applet. It may also return
1205 * SI_ST_QUE, or SI_ST_CLO upon error.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001206 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001207static void sess_prepare_conn_req(struct stream *s)
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001208{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01001209 struct stream_interface *si = &s->si[1];
1210
Christopher Faulet45073512018-07-20 10:16:29 +02001211 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 +01001212 now_ms, __FUNCTION__,
1213 s,
CJ Ess6eac32e2015-05-02 16:35:24 -04001214 &s->req, &s->res,
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001215 s->req.rex, s->res.wex,
1216 s->req.flags, s->res.flags,
Christopher Faulet45073512018-07-20 10:16:29 +02001217 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 +01001218
1219 if (si->state != SI_ST_REQ)
1220 return;
1221
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001222 if (unlikely(obj_type(s->target) == OBJ_TYPE_APPLET)) {
1223 /* the applet directly goes to the EST state */
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001224 struct appctx *appctx = objt_appctx(si->end);
1225
1226 if (!appctx || appctx->applet != __objt_applet(s->target))
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001227 appctx = si_register_handler(si, objt_applet(s->target));
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001228
1229 if (!appctx) {
1230 /* No more memory, let's immediately abort. Force the
1231 * error code to ignore the ERR_LOCAL which is not a
1232 * real error.
1233 */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001234 s->flags &= ~(SF_ERR_MASK | SF_FINST_MASK);
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001235
1236 si_shutr(si);
1237 si_shutw(si);
Willy Tarreau103197d2014-11-28 15:26:12 +01001238 s->req.flags |= CF_WRITE_ERROR;
Willy Tarreau6bbb2f62013-12-09 17:14:23 +01001239 si->err_type = SI_ET_CONN_RES;
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001240 si->state = SI_ST_CLO;
1241 if (s->srv_error)
1242 s->srv_error(s, si);
1243 return;
1244 }
1245
Willy Tarreauee8269e2017-11-23 17:34:29 +01001246 if (tv_iszero(&s->logs.tv_request))
1247 s->logs.tv_request = now;
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001248 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001249 si->state = SI_ST_EST;
1250 si->err_type = SI_ET_NONE;
Willy Tarreaub9a551e2014-04-23 00:35:17 +02001251 be_set_sess_last(s->be);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01001252 /* let sess_establish() finish the job */
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001253 return;
1254 }
1255
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001256 /* Try to assign a server */
1257 if (srv_redispatch_connect(s) != 0) {
1258 /* We did not get a server. Either we queued the
1259 * connection request, or we encountered an error.
1260 */
1261 if (si->state == SI_ST_QUE)
1262 return;
1263
1264 /* we did not get any server, let's check the cause */
Willy Tarreau73b013b2012-05-21 16:31:45 +02001265 si_shutr(si);
1266 si_shutw(si);
Willy Tarreau103197d2014-11-28 15:26:12 +01001267 s->req.flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001268 if (!si->err_type)
1269 si->err_type = SI_ET_CONN_OTHER;
1270 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001271 if (s->srv_error)
1272 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001273 return;
1274 }
1275
1276 /* The server is assigned */
1277 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1278 si->state = SI_ST_ASS;
Willy Tarreaub9a551e2014-04-23 00:35:17 +02001279 be_set_sess_last(s->be);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001280}
1281
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001282/* This function parses the use-service action ruleset. It executes
1283 * the associated ACL and set an applet as a stream or txn final node.
1284 * it returns ACT_RET_ERR if an error occurs, the proxy left in
1285 * consistent state. It returns ACT_RET_STOP in succes case because
1286 * use-service must be a terminal action. Returns ACT_RET_YIELD
1287 * if the initialisation function require more data.
1288 */
1289enum act_return process_use_service(struct act_rule *rule, struct proxy *px,
1290 struct session *sess, struct stream *s, int flags)
1291
1292{
1293 struct appctx *appctx;
1294
1295 /* Initialises the applet if it is required. */
1296 if (flags & ACT_FLAG_FIRST) {
1297 /* Register applet. this function schedules the applet. */
1298 s->target = &rule->applet.obj_type;
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001299 if (unlikely(!si_register_handler(&s->si[1], objt_applet(s->target))))
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001300 return ACT_RET_ERR;
1301
1302 /* Initialise the context. */
1303 appctx = si_appctx(&s->si[1]);
1304 memset(&appctx->ctx, 0, sizeof(appctx->ctx));
1305 appctx->rule = rule;
1306 }
1307 else
1308 appctx = si_appctx(&s->si[1]);
1309
1310 /* Stops the applet sheduling, in case of the init function miss
1311 * some data.
1312 */
Willy Tarreau0cd3bd62018-11-06 18:46:37 +01001313 si_stop_get(&s->si[1]);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001314
1315 /* Call initialisation. */
1316 if (rule->applet.init)
1317 switch (rule->applet.init(appctx, px, s)) {
1318 case 0: return ACT_RET_ERR;
1319 case 1: break;
1320 default: return ACT_RET_YIELD;
1321 }
1322
Christopher Faulet2571bc62019-03-01 11:44:26 +01001323 if (rule->from != ACT_F_HTTP_REQ) {
1324 if (sess->fe == s->be) /* report it if the request was intercepted by the frontend */
1325 _HA_ATOMIC_ADD(&sess->fe->fe_counters.intercepted_req, 1);
1326
1327 /* The flag SF_ASSIGNED prevent from server assignment. */
1328 s->flags |= SF_ASSIGNED;
1329 }
1330
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001331 /* Now we can schedule the applet. */
Willy Tarreau0cd3bd62018-11-06 18:46:37 +01001332 si_cant_get(&s->si[1]);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001333 appctx_wakeup(appctx);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001334 return ACT_RET_STOP;
1335}
1336
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001337/* This stream analyser checks the switching rules and changes the backend
Willy Tarreau4de91492010-01-22 19:10:05 +01001338 * if appropriate. The default_backend rule is also considered, then the
1339 * target backend's forced persistence rules are also evaluated last if any.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001340 * It returns 1 if the processing can continue on next analysers, or zero if it
1341 * either needs more data or wants to immediately abort the request.
1342 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001343static int process_switching_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001344{
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001345 struct persist_rule *prst_rule;
Willy Tarreau192252e2015-04-04 01:47:55 +02001346 struct session *sess = s->sess;
1347 struct proxy *fe = sess->fe;
Willy Tarreau4de91492010-01-22 19:10:05 +01001348
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001349 req->analysers &= ~an_bit;
1350 req->analyse_exp = TICK_ETERNITY;
1351
Christopher Faulet45073512018-07-20 10:16:29 +02001352 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 +02001353 now_ms, __FUNCTION__,
1354 s,
1355 req,
1356 req->rex, req->wex,
1357 req->flags,
Christopher Faulet45073512018-07-20 10:16:29 +02001358 ci_data(req),
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001359 req->analysers);
1360
1361 /* now check whether we have some switching rules for this request */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001362 if (!(s->flags & SF_BE_ASSIGNED)) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001363 struct switching_rule *rule;
1364
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001365 list_for_each_entry(rule, &fe->switching_rules, list) {
Willy Tarreauf51658d2014-04-23 01:21:56 +02001366 int ret = 1;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001367
Willy Tarreauf51658d2014-04-23 01:21:56 +02001368 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001369 ret = acl_exec_cond(rule->cond, fe, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001370 ret = acl_pass(ret);
1371 if (rule->cond->pol == ACL_COND_UNLESS)
1372 ret = !ret;
1373 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001374
1375 if (ret) {
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001376 /* If the backend name is dynamic, try to resolve the name.
1377 * If we can't resolve the name, or if any error occurs, break
1378 * the loop and fallback to the default backend.
1379 */
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001380 struct proxy *backend = NULL;
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001381
1382 if (rule->dynamic) {
Willy Tarreau83061a82018-07-13 11:56:34 +02001383 struct buffer *tmp;
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001384
1385 tmp = alloc_trash_chunk();
1386 if (!tmp)
1387 goto sw_failed;
1388
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001389 if (build_logline(s, tmp->area, tmp->size, &rule->be.expr))
1390 backend = proxy_be_by_name(tmp->area);
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001391
1392 free_trash_chunk(tmp);
1393 tmp = NULL;
1394
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001395 if (!backend)
1396 break;
1397 }
1398 else
1399 backend = rule->be.backend;
1400
Willy Tarreau87b09662015-04-03 00:22:06 +02001401 if (!stream_set_backend(s, backend))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001402 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001403 break;
1404 }
1405 }
1406
1407 /* To ensure correct connection accounting on the backend, we
1408 * have to assign one if it was not set (eg: a listen). This
1409 * measure also takes care of correctly setting the default
1410 * backend if any.
1411 */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001412 if (!(s->flags & SF_BE_ASSIGNED))
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001413 if (!stream_set_backend(s, fe->defbe.be ? fe->defbe.be : s->be))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001414 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001415 }
1416
Willy Tarreaufb356202010-08-03 14:02:05 +02001417 /* 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 +02001418 if (fe == s->be) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001419 s->req.analysers &= ~AN_REQ_INSPECT_BE;
1420 s->req.analysers &= ~AN_REQ_HTTP_PROCESS_BE;
Christopher Faulet0184ea72017-01-05 14:06:34 +01001421 s->req.analysers &= ~AN_REQ_FLT_START_BE;
Willy Tarreaufb356202010-08-03 14:02:05 +02001422 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001423
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001424 /* 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 +02001425 * persistence rule, and report that in the stream.
Willy Tarreau4de91492010-01-22 19:10:05 +01001426 */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001427 list_for_each_entry(prst_rule, &s->be->persist_rules, list) {
Willy Tarreau4de91492010-01-22 19:10:05 +01001428 int ret = 1;
1429
1430 if (prst_rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001431 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 +01001432 ret = acl_pass(ret);
1433 if (prst_rule->cond->pol == ACL_COND_UNLESS)
1434 ret = !ret;
1435 }
1436
1437 if (ret) {
1438 /* no rule, or the rule matches */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001439 if (prst_rule->type == PERSIST_TYPE_FORCE) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001440 s->flags |= SF_FORCE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001441 } else {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001442 s->flags |= SF_IGNORE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001443 }
Willy Tarreau4de91492010-01-22 19:10:05 +01001444 break;
1445 }
1446 }
1447
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001448 return 1;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001449
1450 sw_failed:
1451 /* immediately abort this request in case of allocation failure */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001452 channel_abort(&s->req);
1453 channel_abort(&s->res);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001454
Willy Tarreaue7dff022015-04-03 01:14:29 +02001455 if (!(s->flags & SF_ERR_MASK))
1456 s->flags |= SF_ERR_RESOURCE;
1457 if (!(s->flags & SF_FINST_MASK))
1458 s->flags |= SF_FINST_R;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001459
Willy Tarreaueee5b512015-04-03 23:46:31 +02001460 if (s->txn)
1461 s->txn->status = 500;
Christopher Faulet0184ea72017-01-05 14:06:34 +01001462 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001463 s->req.analyse_exp = TICK_ETERNITY;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001464 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001465}
1466
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001467/* This stream analyser works on a request. It applies all use-server rules on
1468 * it then returns 1. The data must already be present in the buffer otherwise
1469 * they won't match. It always returns 1.
1470 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001471static int process_server_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001472{
1473 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001474 struct session *sess = s->sess;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001475 struct server_rule *rule;
1476
Christopher Faulet45073512018-07-20 10:16:29 +02001477 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 +02001478 now_ms, __FUNCTION__,
1479 s,
1480 req,
1481 req->rex, req->wex,
1482 req->flags,
Christopher Faulet45073512018-07-20 10:16:29 +02001483 c_data(req),
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001484 req->analysers);
1485
Willy Tarreaue7dff022015-04-03 01:14:29 +02001486 if (!(s->flags & SF_ASSIGNED)) {
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001487 list_for_each_entry(rule, &px->server_rules, list) {
1488 int ret;
1489
Willy Tarreau192252e2015-04-04 01:47:55 +02001490 ret = acl_exec_cond(rule->cond, s->be, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001491 ret = acl_pass(ret);
1492 if (rule->cond->pol == ACL_COND_UNLESS)
1493 ret = !ret;
1494
1495 if (ret) {
1496 struct server *srv = rule->srv.ptr;
1497
Emeric Brun52a91d32017-08-31 14:41:55 +02001498 if ((srv->cur_state != SRV_ST_STOPPED) ||
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001499 (px->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +02001500 (s->flags & SF_FORCE_PRST)) {
1501 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001502 s->target = &srv->obj_type;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001503 break;
1504 }
1505 /* if the server is not UP, let's go on with next rules
1506 * just in case another one is suited.
1507 */
1508 }
1509 }
1510 }
1511
1512 req->analysers &= ~an_bit;
1513 req->analyse_exp = TICK_ETERNITY;
1514 return 1;
1515}
1516
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001517static inline void sticking_rule_find_target(struct stream *s,
1518 struct stktable *t, struct stksess *ts)
1519{
1520 struct proxy *px = s->be;
1521 struct eb32_node *node;
1522 struct dict_entry *de;
1523 void *ptr;
1524 struct server *srv;
1525
1526 /* Look for the server name previously stored in <t> stick-table */
1527 HA_RWLOCK_RDLOCK(STK_SESS_LOCK, &ts->lock);
1528 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_NAME);
1529 de = stktable_data_cast(ptr, server_name);
1530 HA_RWLOCK_RDUNLOCK(STK_SESS_LOCK, &ts->lock);
1531
1532 if (de) {
1533 struct ebpt_node *name;
1534
1535 name = ebis_lookup(&px->conf.used_server_name, de->value.key);
1536 if (name) {
1537 srv = container_of(name, struct server, conf.name);
1538 goto found;
1539 }
1540 }
1541
1542 /* Look for the server ID */
1543 HA_RWLOCK_RDLOCK(STK_SESS_LOCK, &ts->lock);
1544 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_ID);
1545 node = eb32_lookup(&px->conf.used_server_id, stktable_data_cast(ptr, server_id));
1546 HA_RWLOCK_RDUNLOCK(STK_SESS_LOCK, &ts->lock);
1547
1548 if (!node)
1549 return;
1550
1551 srv = container_of(node, struct server, conf.id);
1552 found:
1553 if ((srv->cur_state != SRV_ST_STOPPED) ||
1554 (px->options & PR_O_PERSIST) || (s->flags & SF_FORCE_PRST)) {
1555 s->flags |= SF_DIRECT | SF_ASSIGNED;
1556 s->target = &srv->obj_type;
1557 }
1558}
1559
Emeric Brun1d33b292010-01-04 15:47:17 +01001560/* This stream analyser works on a request. It applies all sticking rules on
1561 * it then returns 1. The data must already be present in the buffer otherwise
1562 * they won't match. It always returns 1.
1563 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001564static int process_sticking_rules(struct stream *s, struct channel *req, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001565{
1566 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001567 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001568 struct sticking_rule *rule;
1569
Christopher Faulet45073512018-07-20 10:16:29 +02001570 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 +01001571 now_ms, __FUNCTION__,
1572 s,
1573 req,
1574 req->rex, req->wex,
1575 req->flags,
Christopher Faulet45073512018-07-20 10:16:29 +02001576 ci_data(req),
Emeric Brun1d33b292010-01-04 15:47:17 +01001577 req->analysers);
1578
1579 list_for_each_entry(rule, &px->sticking_rules, list) {
1580 int ret = 1 ;
1581 int i;
1582
Willy Tarreau9667a802013-12-09 12:52:13 +01001583 /* Only the first stick store-request of each table is applied
1584 * and other ones are ignored. The purpose is to allow complex
1585 * configurations which look for multiple entries by decreasing
1586 * order of precision and to stop at the first which matches.
1587 * An example could be a store of the IP address from an HTTP
1588 * header first, then from the source if not found.
1589 */
Jerome Magnin7218bc92020-01-16 17:37:21 +01001590 if (rule->flags & STK_IS_STORE) {
1591 for (i = 0; i < s->store_count; i++) {
1592 if (rule->table.t == s->store[i].table)
1593 break;
1594 }
Emeric Brun1d33b292010-01-04 15:47:17 +01001595
Jerome Magnin7218bc92020-01-16 17:37:21 +01001596 if (i != s->store_count)
1597 continue;
1598 }
Emeric Brun1d33b292010-01-04 15:47:17 +01001599
1600 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001601 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001602 ret = acl_pass(ret);
1603 if (rule->cond->pol == ACL_COND_UNLESS)
1604 ret = !ret;
1605 }
1606
1607 if (ret) {
1608 struct stktable_key *key;
1609
Willy Tarreau192252e2015-04-04 01:47:55 +02001610 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 +01001611 if (!key)
1612 continue;
1613
1614 if (rule->flags & STK_IS_MATCH) {
1615 struct stksess *ts;
1616
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001617 if ((ts = stktable_lookup_key(rule->table.t, key)) != NULL) {
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001618 if (!(s->flags & SF_ASSIGNED))
1619 sticking_rule_find_target(s, rule->table.t, ts);
Emeric Brun819fc6f2017-06-13 19:37:32 +02001620 stktable_touch_local(rule->table.t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001621 }
1622 }
1623 if (rule->flags & STK_IS_STORE) {
1624 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
1625 struct stksess *ts;
1626
1627 ts = stksess_new(rule->table.t, key);
1628 if (ts) {
1629 s->store[s->store_count].table = rule->table.t;
1630 s->store[s->store_count++].ts = ts;
1631 }
1632 }
1633 }
1634 }
1635 }
1636
1637 req->analysers &= ~an_bit;
1638 req->analyse_exp = TICK_ETERNITY;
1639 return 1;
1640}
1641
1642/* This stream analyser works on a response. It applies all store rules on it
1643 * then returns 1. The data must already be present in the buffer otherwise
1644 * they won't match. It always returns 1.
1645 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001646static int process_store_rules(struct stream *s, struct channel *rep, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001647{
1648 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001649 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001650 struct sticking_rule *rule;
1651 int i;
Willy Tarreau9667a802013-12-09 12:52:13 +01001652 int nbreq = s->store_count;
Emeric Brun1d33b292010-01-04 15:47:17 +01001653
Christopher Faulet45073512018-07-20 10:16:29 +02001654 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 +01001655 now_ms, __FUNCTION__,
1656 s,
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001657 rep,
1658 rep->rex, rep->wex,
1659 rep->flags,
Christopher Faulet45073512018-07-20 10:16:29 +02001660 ci_data(rep),
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001661 rep->analysers);
Emeric Brun1d33b292010-01-04 15:47:17 +01001662
1663 list_for_each_entry(rule, &px->storersp_rules, list) {
1664 int ret = 1 ;
Emeric Brun1d33b292010-01-04 15:47:17 +01001665
Willy Tarreau9667a802013-12-09 12:52:13 +01001666 /* Only the first stick store-response of each table is applied
1667 * and other ones are ignored. The purpose is to allow complex
1668 * configurations which look for multiple entries by decreasing
1669 * order of precision and to stop at the first which matches.
1670 * An example could be a store of a set-cookie value, with a
1671 * fallback to a parameter found in a 302 redirect.
1672 *
1673 * The store-response rules are not allowed to override the
1674 * store-request rules for the same table, but they may coexist.
1675 * Thus we can have up to one store-request entry and one store-
1676 * response entry for the same table at any time.
1677 */
1678 for (i = nbreq; i < s->store_count; i++) {
1679 if (rule->table.t == s->store[i].table)
1680 break;
1681 }
1682
1683 /* skip existing entries for this table */
1684 if (i < s->store_count)
1685 continue;
1686
Emeric Brun1d33b292010-01-04 15:47:17 +01001687 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001688 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_RES|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001689 ret = acl_pass(ret);
1690 if (rule->cond->pol == ACL_COND_UNLESS)
1691 ret = !ret;
1692 }
1693
1694 if (ret) {
1695 struct stktable_key *key;
1696
Willy Tarreau192252e2015-04-04 01:47:55 +02001697 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 +01001698 if (!key)
1699 continue;
1700
Willy Tarreau37e340c2013-12-06 23:05:21 +01001701 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001702 struct stksess *ts;
1703
1704 ts = stksess_new(rule->table.t, key);
1705 if (ts) {
1706 s->store[s->store_count].table = rule->table.t;
Emeric Brun1d33b292010-01-04 15:47:17 +01001707 s->store[s->store_count++].ts = ts;
1708 }
1709 }
1710 }
1711 }
1712
1713 /* process store request and store response */
1714 for (i = 0; i < s->store_count; i++) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001715 struct stksess *ts;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001716 void *ptr;
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001717 struct dict_entry *de;
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001718
Willy Tarreauc93cd162014-05-13 15:54:22 +02001719 if (objt_server(s->target) && objt_server(s->target)->flags & SRV_F_NON_STICK) {
Simon Hormanfa461682011-06-25 09:39:49 +09001720 stksess_free(s->store[i].table, s->store[i].ts);
1721 s->store[i].ts = NULL;
1722 continue;
1723 }
1724
Emeric Brun819fc6f2017-06-13 19:37:32 +02001725 ts = stktable_set_entry(s->store[i].table, s->store[i].ts);
1726 if (ts != s->store[i].ts) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001727 /* the entry already existed, we can free ours */
Emeric Brun1d33b292010-01-04 15:47:17 +01001728 stksess_free(s->store[i].table, s->store[i].ts);
Emeric Brun1d33b292010-01-04 15:47:17 +01001729 }
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001730 s->store[i].ts = NULL;
Emeric Brun819fc6f2017-06-13 19:37:32 +02001731
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001732 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Willy Tarreaub8d42d02018-09-20 11:11:15 +02001733 ptr = __stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_ID);
1734 stktable_data_cast(ptr, server_id) = __objt_server(s->target)->puid;
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001735 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001736
1737 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
1738 de = dict_insert(&server_name_dict, __objt_server(s->target)->id);
1739 if (de) {
1740 ptr = __stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_NAME);
1741 stktable_data_cast(ptr, server_name) = de;
1742 }
1743 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
1744
Emeric Brun819fc6f2017-06-13 19:37:32 +02001745 stktable_touch_local(s->store[i].table, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001746 }
Willy Tarreau2a164ee2010-06-18 09:57:45 +02001747 s->store_count = 0; /* everything is stored */
Emeric Brun1d33b292010-01-04 15:47:17 +01001748
1749 rep->analysers &= ~an_bit;
1750 rep->analyse_exp = TICK_ETERNITY;
1751 return 1;
1752}
1753
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001754/* This macro is very specific to the function below. See the comments in
Willy Tarreau87b09662015-04-03 00:22:06 +02001755 * process_stream() below to understand the logic and the tests.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001756 */
1757#define UPDATE_ANALYSERS(real, list, back, flag) { \
1758 list = (((list) & ~(flag)) | ~(back)) & (real); \
1759 back = real; \
1760 if (!(list)) \
1761 break; \
1762 if (((list) ^ ((list) & ((list) - 1))) < (flag)) \
1763 continue; \
1764}
1765
Christopher Fauleta9215b72016-05-11 17:06:28 +02001766/* These 2 following macros call an analayzer for the specified channel if the
1767 * right flag is set. The first one is used for "filterable" analyzers. If a
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001768 * stream has some registered filters, pre and post analyaze callbacks are
Christopher Faulet0184ea72017-01-05 14:06:34 +01001769 * called. The second are used for other analyzers (AN_REQ/RES_FLT_* and
Christopher Fauleta9215b72016-05-11 17:06:28 +02001770 * AN_REQ/RES_HTTP_XFER_BODY) */
1771#define FLT_ANALYZE(strm, chn, fun, list, back, flag, ...) \
1772 { \
1773 if ((list) & (flag)) { \
1774 if (HAS_FILTERS(strm)) { \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001775 if (!flt_pre_analyze((strm), (chn), (flag))) \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001776 break; \
1777 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1778 break; \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001779 if (!flt_post_analyze((strm), (chn), (flag))) \
1780 break; \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001781 } \
1782 else { \
1783 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1784 break; \
1785 } \
1786 UPDATE_ANALYSERS((chn)->analysers, (list), \
1787 (back), (flag)); \
1788 } \
1789 }
1790
1791#define ANALYZE(strm, chn, fun, list, back, flag, ...) \
1792 { \
1793 if ((list) & (flag)) { \
1794 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1795 break; \
1796 UPDATE_ANALYSERS((chn)->analysers, (list), \
1797 (back), (flag)); \
1798 } \
1799 }
1800
Willy Tarreau87b09662015-04-03 00:22:06 +02001801/* Processes the client, server, request and response jobs of a stream task,
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001802 * then puts it back to the wait queue in a clean state, or cleans up its
1803 * resources if it must be deleted. Returns in <next> the date the task wants
1804 * to be woken up, or TICK_ETERNITY. In order not to call all functions for
1805 * nothing too many times, the request and response buffers flags are monitored
1806 * and each function is called only if at least another function has changed at
1807 * least one flag it is interested in.
1808 */
Olivier Houchard9f6af332018-05-25 14:04:04 +02001809struct task *process_stream(struct task *t, void *context, unsigned short state)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001810{
Willy Tarreau827aee92011-03-10 16:55:02 +01001811 struct server *srv;
Olivier Houchard9f6af332018-05-25 14:04:04 +02001812 struct stream *s = context;
Willy Tarreaufb0afa72015-04-03 14:46:27 +02001813 struct session *sess = s->sess;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001814 unsigned int rqf_last, rpf_last;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001815 unsigned int rq_prod_last, rq_cons_last;
1816 unsigned int rp_cons_last, rp_prod_last;
Willy Tarreau576507f2010-01-07 00:09:04 +01001817 unsigned int req_ana_back;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001818 struct channel *req, *res;
1819 struct stream_interface *si_f, *si_b;
Willy Tarreau3d07a162019-04-25 19:15:20 +02001820 unsigned int rate;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001821
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01001822 activity[tid].stream++;
1823
Willy Tarreau8f128b42014-11-28 15:07:47 +01001824 req = &s->req;
1825 res = &s->res;
1826
1827 si_f = &s->si[0];
1828 si_b = &s->si[1];
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001829
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001830 /* First, attempt to receive pending data from I/O layers */
Willy Tarreauade64782018-11-17 19:51:07 +01001831 si_sync_recv(si_f);
1832 si_sync_recv(si_b);
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001833
Willy Tarreau3d07a162019-04-25 19:15:20 +02001834 rate = update_freq_ctr(&s->call_rate, 1);
1835 if (rate >= 100000 && s->call_rate.prev_ctr) { // make sure to wait at least a full second
1836 stream_dump_and_crash(&s->obj_type, read_freq_ctr(&s->call_rate));
1837 }
Olivier Houchardc2aa7112018-09-11 18:27:21 +02001838
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001839 //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 +01001840 // si_f->state, si_b->state, si_b->err_type, req->flags, res->flags);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001841
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001842 /* this data may be no longer valid, clear it */
Willy Tarreaueee5b512015-04-03 23:46:31 +02001843 if (s->txn)
1844 memset(&s->txn->auth, 0, sizeof(s->txn->auth));
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001845
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02001846 /* This flag must explicitly be set every time */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001847 req->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
1848 res->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001849
1850 /* Keep a copy of req/rep flags so that we can detect shutdowns */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001851 rqf_last = req->flags & ~CF_MASK_ANALYSER;
1852 rpf_last = res->flags & ~CF_MASK_ANALYSER;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001853
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001854 /* we don't want the stream interface functions to recursively wake us up */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001855 si_f->flags |= SI_FL_DONT_WAKE;
1856 si_b->flags |= SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001857
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001858 /* update pending events */
Olivier Houchard9f6af332018-05-25 14:04:04 +02001859 s->pending_events |= (state & TASK_WOKEN_ANY);
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001860
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001861 /* 1a: Check for low level timeouts if needed. We just set a flag on
1862 * stream interfaces when their timeouts have expired.
1863 */
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001864 if (unlikely(s->pending_events & TASK_WOKEN_TIMER)) {
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001865 si_check_timeouts(si_f);
1866 si_check_timeouts(si_b);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001867
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001868 /* check channel timeouts, and close the corresponding stream interfaces
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001869 * for future reads or writes. Note: this will also concern upper layers
1870 * but we do not touch any other flag. We must be careful and correctly
1871 * detect state changes when calling them.
1872 */
1873
Willy Tarreau8f128b42014-11-28 15:07:47 +01001874 channel_check_timeouts(req);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001875
Willy Tarreau8f128b42014-11-28 15:07:47 +01001876 if (unlikely((req->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1877 si_b->flags |= SI_FL_NOLINGER;
1878 si_shutw(si_b);
Willy Tarreau14641402009-12-29 14:49:56 +01001879 }
1880
Willy Tarreau8f128b42014-11-28 15:07:47 +01001881 if (unlikely((req->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1882 if (si_f->flags & SI_FL_NOHALF)
1883 si_f->flags |= SI_FL_NOLINGER;
1884 si_shutr(si_f);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001885 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001886
Willy Tarreau8f128b42014-11-28 15:07:47 +01001887 channel_check_timeouts(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001888
Willy Tarreau8f128b42014-11-28 15:07:47 +01001889 if (unlikely((res->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1890 si_f->flags |= SI_FL_NOLINGER;
1891 si_shutw(si_f);
Willy Tarreau14641402009-12-29 14:49:56 +01001892 }
1893
Willy Tarreau8f128b42014-11-28 15:07:47 +01001894 if (unlikely((res->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1895 if (si_b->flags & SI_FL_NOHALF)
1896 si_b->flags |= SI_FL_NOLINGER;
1897 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001898 }
Willy Tarreau798f4322012-11-08 14:49:17 +01001899
Christopher Fauleta00d8172016-11-10 14:58:05 +01001900 if (HAS_FILTERS(s))
1901 flt_stream_check_timeouts(s);
1902
Willy Tarreau798f4322012-11-08 14:49:17 +01001903 /* Once in a while we're woken up because the task expires. But
1904 * this does not necessarily mean that a timeout has been reached.
Willy Tarreau87b09662015-04-03 00:22:06 +02001905 * So let's not run a whole stream processing if only an expiration
Willy Tarreau798f4322012-11-08 14:49:17 +01001906 * timeout needs to be refreshed.
1907 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001908 if (!((req->flags | res->flags) &
Willy Tarreau798f4322012-11-08 14:49:17 +01001909 (CF_SHUTR|CF_READ_ACTIVITY|CF_READ_TIMEOUT|CF_SHUTW|
Willy Tarreauede3d882018-10-24 17:17:56 +02001910 CF_WRITE_ACTIVITY|CF_WRITE_TIMEOUT|CF_ANA_TIMEOUT)) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01001911 !((si_f->flags | si_b->flags) & (SI_FL_EXP|SI_FL_ERR)) &&
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001912 ((s->pending_events & TASK_WOKEN_ANY) == TASK_WOKEN_TIMER)) {
Willy Tarreau5fb04712016-05-04 10:18:37 +02001913 si_f->flags &= ~SI_FL_DONT_WAKE;
1914 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau798f4322012-11-08 14:49:17 +01001915 goto update_exp_and_leave;
Willy Tarreau5fb04712016-05-04 10:18:37 +02001916 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001917 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001918
Willy Tarreau829bd472019-06-06 09:17:23 +02001919 resync_stream_interface:
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001920 /* below we may emit error messages so we have to ensure that we have
1921 * our buffers properly allocated.
1922 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001923 if (!stream_alloc_work_buffer(s)) {
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001924 /* No buffer available, we've been subscribed to the list of
1925 * buffer waiters, let's wait for our turn.
1926 */
Willy Tarreau5fb04712016-05-04 10:18:37 +02001927 si_f->flags &= ~SI_FL_DONT_WAKE;
1928 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001929 goto update_exp_and_leave;
1930 }
1931
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001932 /* 1b: check for low-level errors reported at the stream interface.
1933 * First we check if it's a retryable error (in which case we don't
1934 * want to tell the buffer). Otherwise we report the error one level
1935 * upper by setting flags into the buffers. Note that the side towards
1936 * the client cannot have connect (hence retryable) errors. Also, the
1937 * connection setup code must be able to deal with any type of abort.
1938 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001939 srv = objt_server(s->target);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001940 if (unlikely(si_f->flags & SI_FL_ERR)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001941 if (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001942 si_shutr(si_f);
1943 si_shutw(si_f);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001944 si_report_error(si_f);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001945 if (!(req->analysers) && !(res->analysers)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001946 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1947 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001948 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001949 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001950 if (!(s->flags & SF_ERR_MASK))
1951 s->flags |= SF_ERR_CLICL;
1952 if (!(s->flags & SF_FINST_MASK))
1953 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001954 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001955 }
1956 }
1957
Willy Tarreau8f128b42014-11-28 15:07:47 +01001958 if (unlikely(si_b->flags & SI_FL_ERR)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001959 if (si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001960 si_shutr(si_b);
1961 si_shutw(si_b);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001962 si_report_error(si_b);
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001963 _HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001964 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001965 _HA_ATOMIC_ADD(&srv->counters.failed_resp, 1);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001966 if (!(req->analysers) && !(res->analysers)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001967 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1968 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001969 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001970 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001971 if (!(s->flags & SF_ERR_MASK))
1972 s->flags |= SF_ERR_SRVCL;
1973 if (!(s->flags & SF_FINST_MASK))
1974 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001975 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001976 }
1977 /* note: maybe we should process connection errors here ? */
1978 }
1979
Willy Tarreau4f283fa2019-06-05 14:34:03 +02001980 if (si_state_in(si_b->state, SI_SB_CON|SI_SB_RDY)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001981 /* we were trying to establish a connection on the server side,
1982 * maybe it succeeded, maybe it failed, maybe we timed out, ...
1983 */
Willy Tarreaud66ed882019-06-05 18:02:04 +02001984 if (si_b->state == SI_ST_RDY)
1985 sess_update_st_rdy_tcp(s);
1986 else if (si_b->state == SI_ST_CON)
1987 sess_update_st_con_tcp(s);
1988
1989 if (si_b->state == SI_ST_CER)
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01001990 sess_update_st_cer(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001991 else if (si_b->state == SI_ST_EST)
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01001992 sess_establish(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001993
1994 /* state is now one of SI_ST_CON (still in progress), SI_ST_EST
1995 * (established), SI_ST_DIS (abort), SI_ST_CLO (last error),
1996 * SI_ST_ASS/SI_ST_TAR/SI_ST_REQ for retryable errors.
1997 */
1998 }
1999
Willy Tarreau8f128b42014-11-28 15:07:47 +01002000 rq_prod_last = si_f->state;
2001 rq_cons_last = si_b->state;
2002 rp_cons_last = si_f->state;
2003 rp_prod_last = si_b->state;
Willy Tarreau815a9b22010-07-27 17:15:12 +02002004
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002005 /* Check for connection closure */
2006
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002007 DPRINTF(stderr,
Christopher Faulet45073512018-07-20 10:16:29 +02002008 "[%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 +01002009 now_ms, __FUNCTION__, __LINE__,
2010 t,
2011 s, s->flags,
Willy Tarreau8f128b42014-11-28 15:07:47 +01002012 req, res,
2013 req->rex, res->wex,
2014 req->flags, res->flags,
Christopher Faulet45073512018-07-20 10:16:29 +02002015 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 +01002016 si_f->err_type, si_b->err_type,
2017 si_b->conn_retries);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002018
2019 /* nothing special to be done on client side */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002020 if (unlikely(si_f->state == SI_ST_DIS))
2021 si_f->state = SI_ST_CLO;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002022
2023 /* When a server-side connection is released, we have to count it and
2024 * check for pending connections on this server.
2025 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002026 if (unlikely(si_b->state == SI_ST_DIS)) {
2027 si_b->state = SI_ST_CLO;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002028 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01002029 if (srv) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002030 if (s->flags & SF_CURR_SESS) {
2031 s->flags &= ~SF_CURR_SESS;
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002032 _HA_ATOMIC_SUB(&srv->cur_sess, 1);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002033 }
2034 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01002035 if (may_dequeue_tasks(srv, s->be))
2036 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002037 }
2038 }
2039
2040 /*
2041 * Note: of the transient states (REQ, CER, DIS), only REQ may remain
2042 * at this point.
2043 */
2044
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002045 resync_request:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002046 /* Analyse request */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002047 if (((req->flags & ~rqf_last) & CF_MASK_ANALYSER) ||
2048 ((req->flags ^ rqf_last) & CF_MASK_STATIC) ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01002049 (req->analysers && (req->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01002050 si_f->state != rq_prod_last ||
2051 si_b->state != rq_cons_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002052 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002053 unsigned int flags = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002054
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002055 if (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01002056 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002057 unsigned int ana_list;
2058 unsigned int ana_back;
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02002059
Willy Tarreau90deb182010-01-07 00:20:41 +01002060 /* it's up to the analysers to stop new connections,
2061 * disable reading or closing. Note: if an analyser
2062 * disables any of these bits, it is responsible for
2063 * enabling them again when it disables itself, so
2064 * that other analysers are called in similar conditions.
2065 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002066 channel_auto_read(req);
2067 channel_auto_connect(req);
2068 channel_auto_close(req);
Willy Tarreauedcf6682008-11-30 23:15:34 +01002069
2070 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01002071 * req->analysers, following the bit order from LSB
Willy Tarreauedcf6682008-11-30 23:15:34 +01002072 * to MSB. The analysers must remove themselves from
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02002073 * the list when not needed. Any analyser may return 0
2074 * to break out of the loop, either because of missing
2075 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02002076 * kill the stream. We loop at least once through each
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02002077 * analyser, and we may loop again if other analysers
2078 * are added in the middle.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002079 *
2080 * We build a list of analysers to run. We evaluate all
2081 * of these analysers in the order of the lower bit to
2082 * the higher bit. This ordering is very important.
2083 * An analyser will often add/remove other analysers,
2084 * including itself. Any changes to itself have no effect
2085 * on the loop. If it removes any other analysers, we
2086 * want those analysers not to be called anymore during
2087 * this loop. If it adds an analyser that is located
2088 * after itself, we want it to be scheduled for being
2089 * processed during the loop. If it adds an analyser
2090 * which is located before it, we want it to switch to
2091 * it immediately, even if it has already been called
2092 * once but removed since.
2093 *
2094 * In order to achieve this, we compare the analyser
2095 * list after the call with a copy of it before the
2096 * call. The work list is fed with analyser bits that
2097 * appeared during the call. Then we compare previous
2098 * work list with the new one, and check the bits that
2099 * appeared. If the lowest of these bits is lower than
2100 * the current bit, it means we have enabled a previous
2101 * analyser and must immediately loop again.
Willy Tarreauedcf6682008-11-30 23:15:34 +01002102 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002103
Willy Tarreau8f128b42014-11-28 15:07:47 +01002104 ana_list = ana_back = req->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01002105 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002106 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01002107 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_FE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02002108 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_FE);
2109 FLT_ANALYZE(s, req, http_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_HTTP);
2110 FLT_ANALYZE(s, req, http_wait_for_request_body, ana_list, ana_back, AN_REQ_HTTP_BODY);
2111 FLT_ANALYZE(s, req, http_process_req_common, ana_list, ana_back, AN_REQ_HTTP_PROCESS_FE, sess->fe);
2112 FLT_ANALYZE(s, req, process_switching_rules, ana_list, ana_back, AN_REQ_SWITCHING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01002113 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02002114 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_BE);
2115 FLT_ANALYZE(s, req, http_process_req_common, ana_list, ana_back, AN_REQ_HTTP_PROCESS_BE, s->be);
2116 FLT_ANALYZE(s, req, http_process_tarpit, ana_list, ana_back, AN_REQ_HTTP_TARPIT);
2117 FLT_ANALYZE(s, req, process_server_rules, ana_list, ana_back, AN_REQ_SRV_RULES);
2118 FLT_ANALYZE(s, req, http_process_request, ana_list, ana_back, AN_REQ_HTTP_INNER);
2119 FLT_ANALYZE(s, req, tcp_persist_rdp_cookie, ana_list, ana_back, AN_REQ_PRST_RDP_COOKIE);
2120 FLT_ANALYZE(s, req, process_sticking_rules, ana_list, ana_back, AN_REQ_STICKING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01002121 ANALYZE (s, req, flt_analyze_http_headers, ana_list, ana_back, AN_REQ_FLT_HTTP_HDRS);
Christopher Fauleta9215b72016-05-11 17:06:28 +02002122 ANALYZE (s, req, http_request_forward_body, ana_list, ana_back, AN_REQ_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02002123 ANALYZE (s, req, pcli_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01002124 ANALYZE (s, req, flt_xfer_data, ana_list, ana_back, AN_REQ_FLT_XFER_DATA);
2125 ANALYZE (s, req, flt_end_analyze, ana_list, ana_back, AN_REQ_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01002126 break;
2127 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002128 }
Willy Tarreau84455332009-03-15 22:34:05 +01002129
Willy Tarreau8f128b42014-11-28 15:07:47 +01002130 rq_prod_last = si_f->state;
2131 rq_cons_last = si_b->state;
2132 req->flags &= ~CF_WAKE_ONCE;
2133 rqf_last = req->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02002134
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02002135 if ((req->flags ^ flags) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002136 goto resync_request;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002137 }
2138
Willy Tarreau576507f2010-01-07 00:09:04 +01002139 /* we'll monitor the request analysers while parsing the response,
2140 * because some response analysers may indirectly enable new request
2141 * analysers (eg: HTTP keep-alive).
2142 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002143 req_ana_back = req->analysers;
Willy Tarreau576507f2010-01-07 00:09:04 +01002144
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002145 resync_response:
2146 /* Analyse response */
2147
Willy Tarreau8f128b42014-11-28 15:07:47 +01002148 if (((res->flags & ~rpf_last) & CF_MASK_ANALYSER) ||
2149 (res->flags ^ rpf_last) & CF_MASK_STATIC ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01002150 (res->analysers && (res->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01002151 si_f->state != rp_cons_last ||
2152 si_b->state != rp_prod_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002153 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002154 unsigned int flags = res->flags;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002155
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002156 if (si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01002157 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002158 unsigned int ana_list;
2159 unsigned int ana_back;
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002160
Willy Tarreau90deb182010-01-07 00:20:41 +01002161 /* it's up to the analysers to stop disable reading or
2162 * closing. Note: if an analyser disables any of these
2163 * bits, it is responsible for enabling them again when
2164 * it disables itself, so that other analysers are called
2165 * in similar conditions.
2166 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002167 channel_auto_read(res);
2168 channel_auto_close(res);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002169
2170 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01002171 * res->analysers, following the bit order from LSB
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002172 * to MSB. The analysers must remove themselves from
2173 * the list when not needed. Any analyser may return 0
2174 * to break out of the loop, either because of missing
2175 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02002176 * kill the stream. We loop at least once through each
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002177 * analyser, and we may loop again if other analysers
2178 * are added in the middle.
2179 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002180
Willy Tarreau8f128b42014-11-28 15:07:47 +01002181 ana_list = ana_back = res->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01002182 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002183 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01002184 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_FE);
2185 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02002186 FLT_ANALYZE(s, res, tcp_inspect_response, ana_list, ana_back, AN_RES_INSPECT);
2187 FLT_ANALYZE(s, res, http_wait_for_response, ana_list, ana_back, AN_RES_WAIT_HTTP);
2188 FLT_ANALYZE(s, res, process_store_rules, ana_list, ana_back, AN_RES_STORE_RULES);
2189 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 +01002190 ANALYZE (s, res, flt_analyze_http_headers, ana_list, ana_back, AN_RES_FLT_HTTP_HDRS);
Christopher Fauleta9215b72016-05-11 17:06:28 +02002191 ANALYZE (s, res, http_response_forward_body, ana_list, ana_back, AN_RES_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02002192 ANALYZE (s, res, pcli_wait_for_response, ana_list, ana_back, AN_RES_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01002193 ANALYZE (s, res, flt_xfer_data, ana_list, ana_back, AN_RES_FLT_XFER_DATA);
2194 ANALYZE (s, res, flt_end_analyze, ana_list, ana_back, AN_RES_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01002195 break;
2196 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002197 }
2198
Willy Tarreau8f128b42014-11-28 15:07:47 +01002199 rp_cons_last = si_f->state;
2200 rp_prod_last = si_b->state;
Christopher Fauletcdaea892017-07-06 15:49:30 +02002201 res->flags &= ~CF_WAKE_ONCE;
Willy Tarreau8f128b42014-11-28 15:07:47 +01002202 rpf_last = res->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02002203
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02002204 if ((res->flags ^ flags) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002205 goto resync_response;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002206 }
2207
Willy Tarreau576507f2010-01-07 00:09:04 +01002208 /* maybe someone has added some request analysers, so we must check and loop */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002209 if (req->analysers & ~req_ana_back)
Willy Tarreau576507f2010-01-07 00:09:04 +01002210 goto resync_request;
2211
Willy Tarreau8f128b42014-11-28 15:07:47 +01002212 if ((req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0499e352010-12-17 07:13:42 +01002213 goto resync_request;
2214
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002215 /* FIXME: here we should call protocol handlers which rely on
2216 * both buffers.
2217 */
2218
2219
2220 /*
Willy Tarreau87b09662015-04-03 00:22:06 +02002221 * Now we propagate unhandled errors to the stream. Normally
Willy Tarreauae526782010-03-04 20:34:23 +01002222 * we're just in a data phase here since it means we have not
2223 * seen any analyser who could set an error status.
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002224 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002225 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002226 if (unlikely(!(s->flags & SF_ERR_MASK))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002227 if (req->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002228 /* Report it if the client got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002229 req->analysers = 0;
2230 if (req->flags & CF_READ_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002231 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
2232 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002233 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002234 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002235 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002236 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002237 else if (req->flags & CF_READ_TIMEOUT) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002238 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
2239 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002240 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002241 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002242 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01002243 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002244 else if (req->flags & CF_WRITE_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002245 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
2246 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002247 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002248 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002249 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002250 }
2251 else {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002252 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
2253 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002254 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002255 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002256 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002257 }
Willy Tarreau84455332009-03-15 22:34:05 +01002258 sess_set_term_flags(s);
Christopher Faulet5e1a9d72019-04-23 17:34:22 +02002259
2260 /* Abort the request if a client error occurred while
2261 * the backend stream-interface is in the SI_ST_INI
2262 * state. It is switched into the SI_ST_CLO state and
2263 * the request channel is erased. */
2264 if (si_b->state == SI_ST_INI) {
2265 si_b->state = SI_ST_CLO;
2266 channel_abort(req);
2267 if (IS_HTX_STRM(s))
2268 channel_htx_erase(req, htxbuf(&req->buf));
2269 else
2270 channel_erase(req);
2271 }
Willy Tarreau84455332009-03-15 22:34:05 +01002272 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002273 else if (res->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002274 /* Report it if the server got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002275 res->analysers = 0;
2276 if (res->flags & CF_READ_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002277 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
2278 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002279 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002280 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002281 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002282 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002283 else if (res->flags & CF_READ_TIMEOUT) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002284 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
2285 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002286 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002287 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002288 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002289 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002290 else if (res->flags & CF_WRITE_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002291 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
2292 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002293 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002294 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002295 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002296 }
2297 else {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002298 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
2299 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002300 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002301 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002302 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01002303 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002304 sess_set_term_flags(s);
2305 }
Willy Tarreau84455332009-03-15 22:34:05 +01002306 }
2307
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002308 /*
2309 * Here we take care of forwarding unhandled data. This also includes
2310 * connection establishments and shutdown requests.
2311 */
2312
2313
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002314 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002315 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002316 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002317 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002318 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02002319 if (unlikely((!req->analysers || (req->analysers == AN_REQ_FLT_END && !(req->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002320 !(req->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002321 (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002322 (req->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002323 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002324 * attached to it. If any data are left in, we'll permit them to
2325 * move.
2326 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002327 channel_auto_read(req);
2328 channel_auto_connect(req);
2329 channel_auto_close(req);
Willy Tarreau5bd8c372009-01-19 00:32:22 +01002330
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002331 if (IS_HTX_STRM(s)) {
2332 struct htx *htx = htxbuf(&req->buf);
2333
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002334 /* We'll let data flow between the producer (if still connected)
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002335 * to the consumer.
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002336 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002337 co_set_data(req, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002338 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002339 channel_htx_forward_forever(req, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002340 }
2341 else {
2342 /* We'll let data flow between the producer (if still connected)
2343 * to the consumer (which might possibly not be connected yet).
2344 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002345 c_adv(req, ci_data(req));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002346 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2347 channel_forward_forever(req);
Willy Tarreau42529c32015-07-09 18:38:57 +02002348
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002349 /* Just in order to support fetching HTTP contents after start
2350 * of forwarding when the HTTP forwarding analyser is not used,
2351 * we simply reset msg->sov so that HTTP rewinding points to the
2352 * headers.
2353 */
Olivier Houchard1909f6d2018-12-06 13:28:30 +01002354 if (s->txn)
2355 s->txn->req.sov = s->txn->req.eoh + s->txn->req.eol - co_data(req);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002356 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002357 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002358
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002359 /* check if it is wise to enable kernel splicing to forward request data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002360 if (!(req->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2361 req->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002362 (global.tune.options & GTUNE_USE_SPLICE) &&
Christopher Faulet22b4eef2019-11-05 16:49:23 +01002363 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->rcv_pipe &&
2364 __objt_cs(si_f->end)->conn->mux && __objt_cs(si_f->end)->conn->mux->rcv_pipe) &&
2365 (objt_cs(si_b->end) && __objt_cs(si_b->end)->conn->xprt && __objt_cs(si_b->end)->conn->xprt->snd_pipe &&
2366 __objt_cs(si_b->end)->conn->mux && __objt_cs(si_b->end)->conn->mux->snd_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002367 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002368 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_REQ) ||
2369 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002370 (req->flags & CF_STREAMER_FAST)))) {
2371 req->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002372 }
2373
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002374 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002375 rqf_last = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002376
Willy Tarreau520d95e2009-09-19 21:04:57 +02002377 /* it's possible that an upper layer has requested a connection setup or abort.
2378 * There are 2 situations where we decide to establish a new connection :
2379 * - there are data scheduled for emission in the buffer
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002380 * - the CF_AUTO_CONNECT flag is set (active connection)
Willy Tarreau520d95e2009-09-19 21:04:57 +02002381 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002382 if (si_b->state == SI_ST_INI) {
Christopher Faulet5e1a9d72019-04-23 17:34:22 +02002383 if (!(req->flags & CF_SHUTW)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002384 if ((req->flags & CF_AUTO_CONNECT) || !channel_is_empty(req)) {
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002385 /* If we have an appctx, there is no connect method, so we
2386 * immediately switch to the connected state, otherwise we
2387 * perform a connection request.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002388 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002389 si_b->state = SI_ST_REQ; /* new connection requested */
2390 si_b->conn_retries = s->be->conn_retries;
Olivier Houchard602bf7d2019-05-10 13:59:15 +02002391 if ((s->be->retry_type &~ PR_RE_CONN_FAILED) &&
Olivier Houchard19c02d12020-05-13 19:07:20 +02002392 (s->be->mode == PR_MODE_HTTP) &&
Olivier Houchard602bf7d2019-05-10 13:59:15 +02002393 !(si_b->flags & SI_FL_D_L7_RETRY))
Olivier Houcharda254a372019-04-05 15:30:12 +02002394 si_b->flags |= SI_FL_L7_RETRY;
Willy Tarreau520d95e2009-09-19 21:04:57 +02002395 }
Willy Tarreau73201222009-08-16 18:27:24 +02002396 }
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002397 else {
Willy Tarreau0542c8b2017-11-24 15:01:10 +01002398 si_release_endpoint(si_b);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002399 si_b->state = SI_ST_CLO; /* shutw+ini = abort */
2400 channel_shutw_now(req); /* fix buffer flags upon abort */
2401 channel_shutr_now(res);
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002402 }
Willy Tarreau92795622009-03-06 12:51:23 +01002403 }
2404
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002405
2406 /* we may have a pending connection request, or a connection waiting
2407 * for completion.
2408 */
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002409 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 +02002410 /* prune the request variables and swap to the response variables. */
2411 if (s->vars_reqres.scope != SCOPE_RES) {
Jerome Magnin54948f32019-11-09 18:00:47 +01002412 if (!LIST_ISEMPTY(&s->vars_reqres.head))
Willy Tarreaucda7f3f2018-10-28 13:44:36 +01002413 vars_prune(&s->vars_reqres, s->sess, s);
Jerome Magnin54948f32019-11-09 18:00:47 +01002414 vars_init(&s->vars_reqres, SCOPE_RES);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +02002415 }
2416
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002417 do {
2418 /* nb: step 1 might switch from QUE to ASS, but we first want
2419 * to give a chance to step 2 to perform a redirect if needed.
2420 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002421 if (si_b->state != SI_ST_REQ)
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01002422 sess_update_stream_int(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002423 if (si_b->state == SI_ST_REQ)
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01002424 sess_prepare_conn_req(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002425
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +01002426 /* applets directly go to the ESTABLISHED state. Similarly,
2427 * servers experience the same fate when their connection
2428 * is reused.
2429 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002430 if (unlikely(si_b->state == SI_ST_EST))
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01002431 sess_establish(s);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01002432
Willy Tarreaub44c8732013-12-31 23:16:50 +01002433 /* Now we can add the server name to a header (if requested) */
2434 /* check for HTTP mode and proxy server_name_hdr_name != NULL */
Willy Tarreau4f283fa2019-06-05 14:34:03 +02002435 if (si_state_in(si_b->state, SI_SB_CON|SI_SB_RDY|SI_SB_EST) &&
Willy Tarreaub44c8732013-12-31 23:16:50 +01002436 (s->be->server_id_hdr_name != NULL) &&
2437 (s->be->mode == PR_MODE_HTTP) &&
2438 objt_server(s->target)) {
Christopher Faulet27a3dc82018-10-23 15:34:07 +02002439 http_send_name_header(s, s->be, objt_server(s->target)->id);
Willy Tarreau1e5dfda2013-04-07 18:19:16 +02002440 }
2441
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002442 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002443 if (si_b->state == SI_ST_ASS && srv && srv->rdr_len && (s->flags & SF_REDIRECTABLE))
Willy Tarreau8f128b42014-11-28 15:07:47 +01002444 http_perform_server_redirect(s, si_b);
2445 } while (si_b->state == SI_ST_ASS);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002446 }
2447
Willy Tarreau829bd472019-06-06 09:17:23 +02002448 /* Let's see if we can send the pending request now */
2449 si_sync_send(si_b);
2450
2451 /*
2452 * Now forward all shutdown requests between both sides of the request buffer
2453 */
2454
2455 /* first, let's check if the request buffer needs to shutdown(write), which may
2456 * happen either because the input is closed or because we want to force a close
2457 * once the server has begun to respond. If a half-closed timeout is set, we adjust
2458 * the other side's timeout as well.
2459 */
2460 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
2461 (CF_AUTO_CLOSE|CF_SHUTR))) {
2462 channel_shutw_now(req);
2463 }
2464
2465 /* shutdown(write) pending */
2466 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2467 channel_is_empty(req))) {
2468 if (req->flags & CF_READ_ERROR)
2469 si_b->flags |= SI_FL_NOLINGER;
2470 si_shutw(si_b);
2471 }
2472
2473 /* shutdown(write) done on server side, we must stop the client too */
2474 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW &&
2475 !req->analysers))
2476 channel_shutr_now(req);
2477
2478 /* shutdown(read) pending */
2479 if (unlikely((req->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2480 if (si_f->flags & SI_FL_NOHALF)
2481 si_f->flags |= SI_FL_NOLINGER;
2482 si_shutr(si_f);
2483 }
2484
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002485 /* Benchmarks have shown that it's optimal to do a full resync now */
Willy Tarreau829bd472019-06-06 09:17:23 +02002486 if (si_f->state == SI_ST_DIS ||
2487 si_state_in(si_b->state, SI_SB_RDY|SI_SB_DIS) ||
2488 (si_f->flags & SI_FL_ERR && si_f->state != SI_ST_CLO) ||
2489 (si_b->flags & SI_FL_ERR && si_b->state != SI_ST_CLO))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002490 goto resync_stream_interface;
2491
Willy Tarreau815a9b22010-07-27 17:15:12 +02002492 /* otherwise we want to check if we need to resync the req buffer or not */
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02002493 if ((req->flags ^ rqf_last) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002494 goto resync_request;
2495
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002496 /* perform output updates to the response buffer */
Willy Tarreau84455332009-03-15 22:34:05 +01002497
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002498 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002499 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002500 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002501 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002502 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02002503 if (unlikely((!res->analysers || (res->analysers == AN_RES_FLT_END && !(res->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002504 !(res->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002505 si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002506 (res->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002507 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002508 * attached to it. If any data are left in, we'll permit them to
2509 * move.
2510 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002511 channel_auto_read(res);
2512 channel_auto_close(res);
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002513
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002514 if (IS_HTX_STRM(s)) {
2515 struct htx *htx = htxbuf(&res->buf);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002516
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002517 /* We'll let data flow between the producer (if still connected)
2518 * to the consumer.
2519 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002520 co_set_data(res, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002521 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002522 channel_htx_forward_forever(res, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002523 }
2524 else {
2525 /* We'll let data flow between the producer (if still connected)
2526 * to the consumer.
2527 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002528 c_adv(res, ci_data(res));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002529 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2530 channel_forward_forever(res);
2531
2532 /* Just in order to support fetching HTTP contents after start
2533 * of forwarding when the HTTP forwarding analyser is not used,
2534 * we simply reset msg->sov so that HTTP rewinding points to the
2535 * headers.
2536 */
Olivier Houchard1909f6d2018-12-06 13:28:30 +01002537 if (s->txn)
2538 s->txn->rsp.sov = s->txn->rsp.eoh + s->txn->rsp.eol - co_data(res);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002539 }
Willy Tarreau42529c32015-07-09 18:38:57 +02002540
Willy Tarreauce887fd2012-05-12 12:50:00 +02002541 /* if we have no analyser anymore in any direction and have a
Willy Tarreau05cdd962014-05-10 14:30:07 +02002542 * tunnel timeout set, use it now. Note that we must respect
2543 * the half-closed timeouts as well.
Willy Tarreauce887fd2012-05-12 12:50:00 +02002544 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002545 if (!req->analysers && s->be->timeout.tunnel) {
2546 req->rto = req->wto = res->rto = res->wto =
Willy Tarreauce887fd2012-05-12 12:50:00 +02002547 s->be->timeout.tunnel;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002548
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002549 if ((req->flags & CF_SHUTR) && tick_isset(sess->fe->timeout.clientfin))
2550 res->wto = sess->fe->timeout.clientfin;
Willy Tarreau8f128b42014-11-28 15:07:47 +01002551 if ((req->flags & CF_SHUTW) && tick_isset(s->be->timeout.serverfin))
2552 res->rto = s->be->timeout.serverfin;
2553 if ((res->flags & CF_SHUTR) && tick_isset(s->be->timeout.serverfin))
2554 req->wto = s->be->timeout.serverfin;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002555 if ((res->flags & CF_SHUTW) && tick_isset(sess->fe->timeout.clientfin))
2556 req->rto = sess->fe->timeout.clientfin;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002557
Willy Tarreau8f128b42014-11-28 15:07:47 +01002558 req->rex = tick_add(now_ms, req->rto);
2559 req->wex = tick_add(now_ms, req->wto);
2560 res->rex = tick_add(now_ms, res->rto);
2561 res->wex = tick_add(now_ms, res->wto);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002562 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002563 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002564
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002565 /* check if it is wise to enable kernel splicing to forward response data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002566 if (!(res->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2567 res->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002568 (global.tune.options & GTUNE_USE_SPLICE) &&
Christopher Faulet22b4eef2019-11-05 16:49:23 +01002569 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->snd_pipe &&
2570 __objt_cs(si_f->end)->conn->mux && __objt_cs(si_f->end)->conn->mux->snd_pipe) &&
2571 (objt_cs(si_b->end) && __objt_cs(si_b->end)->conn->xprt && __objt_cs(si_b->end)->conn->xprt->rcv_pipe &&
2572 __objt_cs(si_b->end)->conn->mux && __objt_cs(si_b->end)->conn->mux->rcv_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002573 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002574 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_RTR) ||
2575 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002576 (res->flags & CF_STREAMER_FAST)))) {
2577 res->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002578 }
2579
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002580 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002581 rpf_last = res->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002582
Willy Tarreau829bd472019-06-06 09:17:23 +02002583 /* Let's see if we can send the pending response now */
2584 si_sync_send(si_f);
2585
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002586 /*
2587 * Now forward all shutdown requests between both sides of the buffer
2588 */
2589
2590 /*
2591 * FIXME: this is probably where we should produce error responses.
2592 */
2593
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002594 /* first, let's check if the response buffer needs to shutdown(write) */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002595 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau05cdd962014-05-10 14:30:07 +02002596 (CF_AUTO_CLOSE|CF_SHUTR))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002597 channel_shutw_now(res);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002598 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002599
2600 /* shutdown(write) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002601 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2602 channel_is_empty(res))) {
2603 si_shutw(si_f);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002604 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002605
2606 /* shutdown(write) done on the client side, we must stop the server too */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002607 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW) &&
2608 !res->analysers)
2609 channel_shutr_now(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002610
2611 /* shutdown(read) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002612 if (unlikely((res->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2613 if (si_b->flags & SI_FL_NOHALF)
2614 si_b->flags |= SI_FL_NOLINGER;
2615 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002616 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002617
Willy Tarreau829bd472019-06-06 09:17:23 +02002618 if (si_f->state == SI_ST_DIS ||
2619 si_state_in(si_b->state, SI_SB_RDY|SI_SB_DIS) ||
2620 (si_f->flags & SI_FL_ERR && si_f->state != SI_ST_CLO) ||
2621 (si_b->flags & SI_FL_ERR && si_b->state != SI_ST_CLO))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002622 goto resync_stream_interface;
2623
Willy Tarreau3c5c0662019-06-06 14:32:49 +02002624 if ((req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002625 goto resync_request;
2626
Willy Tarreau8f128b42014-11-28 15:07:47 +01002627 if ((res->flags ^ rpf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002628 goto resync_response;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002629
Willy Tarreau829bd472019-06-06 09:17:23 +02002630 if (((req->flags ^ rqf_last) | (res->flags ^ rpf_last)) & CF_MASK_ANALYSER)
2631 goto resync_request;
2632
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002633 /* we're interested in getting wakeups again */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002634 si_f->flags &= ~SI_FL_DONT_WAKE;
2635 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002636
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002637 /* This is needed only when debugging is enabled, to indicate
2638 * client-side or server-side close. Please note that in the unlikely
2639 * event where both sides would close at once, the sequence is reported
2640 * on the server side first.
2641 */
2642 if (unlikely((global.mode & MODE_DEBUG) &&
2643 (!(global.mode & MODE_QUIET) ||
2644 (global.mode & MODE_VERBOSE)))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002645 if (si_b->state == SI_ST_CLO &&
2646 si_b->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002647 chunk_printf(&trash, "%08x:%s.srvcls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002648 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002649 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2650 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002651 shut_your_big_mouth_gcc(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002652 }
2653
Willy Tarreau8f128b42014-11-28 15:07:47 +01002654 if (si_f->state == SI_ST_CLO &&
2655 si_f->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002656 chunk_printf(&trash, "%08x:%s.clicls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002657 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002658 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2659 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002660 shut_your_big_mouth_gcc(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002661 }
2662 }
2663
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002664 if (likely((si_f->state != SI_ST_CLO) || !si_state_in(si_b->state, SI_SB_INI|SI_SB_CLO))) {
Olivier Houchard1a8febc2019-07-31 18:05:26 +02002665 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED) && !(s->flags & SF_IGNORE))
Willy Tarreau87b09662015-04-03 00:22:06 +02002666 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002667
Willy Tarreaud14844a2018-11-08 18:15:29 +01002668 si_update_both(si_f, si_b);
Olivier Houchard53216e72018-10-10 15:46:36 +02002669
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002670 /* Trick: if a request is being waiting for the server to respond,
2671 * and if we know the server can timeout, we don't want the timeout
2672 * to expire on the client side first, but we're still interested
2673 * in passing data from the client to the server (eg: POST). Thus,
2674 * we can cancel the client's request timeout if the server's
2675 * request timeout is set and the server has not yet sent a response.
2676 */
2677
Willy Tarreau8f128b42014-11-28 15:07:47 +01002678 if ((res->flags & (CF_AUTO_CLOSE|CF_SHUTR)) == 0 &&
2679 (tick_isset(req->wex) || tick_isset(res->rex))) {
2680 req->flags |= CF_READ_NOEXP;
2681 req->rex = TICK_ETERNITY;
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002682 }
2683
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002684 /* Reset pending events now */
2685 s->pending_events = 0;
2686
Willy Tarreau798f4322012-11-08 14:49:17 +01002687 update_exp_and_leave:
Willy Tarreau5fb04712016-05-04 10:18:37 +02002688 /* Note: please ensure that if you branch here you disable SI_FL_DONT_WAKE */
Christopher Fauleta00d8172016-11-10 14:58:05 +01002689 t->expire = tick_first((tick_is_expired(t->expire, now_ms) ? 0 : t->expire),
2690 tick_first(tick_first(req->rex, req->wex),
2691 tick_first(res->rex, res->wex)));
Willy Tarreaudef0d222016-11-08 22:03:00 +01002692 if (!req->analysers)
2693 req->analyse_exp = TICK_ETERNITY;
2694
2695 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED) &&
2696 (!tick_isset(req->analyse_exp) || tick_is_expired(req->analyse_exp, now_ms)))
2697 req->analyse_exp = tick_add(now_ms, 5000);
2698
2699 t->expire = tick_first(t->expire, req->analyse_exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002700
Willy Tarreau9a398be2017-11-10 17:14:23 +01002701 t->expire = tick_first(t->expire, res->analyse_exp);
2702
Willy Tarreau8f128b42014-11-28 15:07:47 +01002703 if (si_f->exp)
2704 t->expire = tick_first(t->expire, si_f->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002705
Willy Tarreau8f128b42014-11-28 15:07:47 +01002706 if (si_b->exp)
2707 t->expire = tick_first(t->expire, si_b->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002708
Christopher Faulet56803b12017-11-24 16:06:18 +01002709 DPRINTF(stderr,
Willy Tarreau127334e2009-03-28 10:47:26 +01002710 "[%u] queuing with exp=%u req->rex=%u req->wex=%u req->ana_exp=%u"
2711 " 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 +01002712 now_ms, t->expire, req->rex, req->wex, req->analyse_exp,
2713 res->rex, res->wex, si_f->exp, si_b->exp, si_f->state, si_b->state);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002714
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002715 s->pending_events &= ~(TASK_WOKEN_TIMER | TASK_WOKEN_RES);
Willy Tarreau87b09662015-04-03 00:22:06 +02002716 stream_release_buffers(s);
Willy Tarreau26c25062009-03-08 09:38:41 +01002717 return t; /* nothing more to do */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002718 }
2719
Willy Tarreaue7dff022015-04-03 01:14:29 +02002720 if (s->flags & SF_BE_ASSIGNED)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002721 _HA_ATOMIC_SUB(&s->be->beconn, 1);
Willy Tarreau6f5e4b92017-09-15 09:07:56 +02002722
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002723 if (unlikely((global.mode & MODE_DEBUG) &&
2724 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)))) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002725 chunk_printf(&trash, "%08x:%s.closed[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002726 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002727 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2728 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002729 shut_your_big_mouth_gcc(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002730 }
2731
2732 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
Olivier Houchard1a8febc2019-07-31 18:05:26 +02002733 if (!(s->flags & SF_IGNORE))
2734 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002735
Willy Tarreaueee5b512015-04-03 23:46:31 +02002736 if (s->txn && s->txn->status) {
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002737 int n;
2738
Willy Tarreaueee5b512015-04-03 23:46:31 +02002739 n = s->txn->status / 100;
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002740 if (n < 1 || n > 5)
2741 n = 0;
2742
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002743 if (sess->fe->mode == PR_MODE_HTTP) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002744 _HA_ATOMIC_ADD(&sess->fe->fe_counters.p.http.rsp[n], 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002745 }
Willy Tarreaue7dff022015-04-03 01:14:29 +02002746 if ((s->flags & SF_BE_ASSIGNED) &&
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002747 (s->be->mode == PR_MODE_HTTP)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002748 _HA_ATOMIC_ADD(&s->be->be_counters.p.http.rsp[n], 1);
2749 _HA_ATOMIC_ADD(&s->be->be_counters.p.http.cum_req, 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002750 }
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002751 }
2752
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002753 /* let's do a final log if we need it */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002754 if (!LIST_ISEMPTY(&sess->fe->logformat) && s->logs.logwait &&
Willy Tarreaue7dff022015-04-03 01:14:29 +02002755 !(s->flags & SF_MONITOR) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002756 (!(sess->fe->options & PR_O_NULLNOLOG) || req->total)) {
Willy Tarreau66425e32018-07-25 06:55:12 +02002757 /* we may need to know the position in the queue */
2758 pendconn_free(s);
Willy Tarreaua5555ec2008-11-30 19:02:32 +01002759 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002760 }
2761
Willy Tarreau87b09662015-04-03 00:22:06 +02002762 /* update time stats for this stream */
2763 stream_update_time_stats(s);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002764
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002765 /* the task MUST not be in the run queue anymore */
Willy Tarreau87b09662015-04-03 00:22:06 +02002766 stream_free(s);
Olivier Houchard3f795f72019-04-17 22:51:06 +02002767 task_destroy(t);
Willy Tarreau26c25062009-03-08 09:38:41 +01002768 return NULL;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002769}
2770
Willy Tarreau87b09662015-04-03 00:22:06 +02002771/* Update the stream's backend and server time stats */
2772void stream_update_time_stats(struct stream *s)
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002773{
2774 int t_request;
2775 int t_queue;
2776 int t_connect;
2777 int t_data;
2778 int t_close;
2779 struct server *srv;
2780
2781 t_request = 0;
2782 t_queue = s->logs.t_queue;
2783 t_connect = s->logs.t_connect;
2784 t_close = s->logs.t_close;
2785 t_data = s->logs.t_data;
2786
2787 if (s->be->mode != PR_MODE_HTTP)
2788 t_data = t_connect;
2789
2790 if (t_connect < 0 || t_data < 0)
2791 return;
2792
2793 if (tv_isge(&s->logs.tv_request, &s->logs.tv_accept))
2794 t_request = tv_ms_elapsed(&s->logs.tv_accept, &s->logs.tv_request);
2795
2796 t_data -= t_connect;
2797 t_connect -= t_queue;
2798 t_queue -= t_request;
2799
2800 srv = objt_server(s->target);
2801 if (srv) {
2802 swrate_add(&srv->counters.q_time, TIME_STATS_SAMPLES, t_queue);
2803 swrate_add(&srv->counters.c_time, TIME_STATS_SAMPLES, t_connect);
2804 swrate_add(&srv->counters.d_time, TIME_STATS_SAMPLES, t_data);
2805 swrate_add(&srv->counters.t_time, TIME_STATS_SAMPLES, t_close);
Christopher Fauletdf73efe2019-11-08 14:53:15 +01002806 HA_ATOMIC_UPDATE_MAX(&srv->counters.qtime_max, t_queue);
2807 HA_ATOMIC_UPDATE_MAX(&srv->counters.ctime_max, t_connect);
2808 HA_ATOMIC_UPDATE_MAX(&srv->counters.dtime_max, t_data);
2809 HA_ATOMIC_UPDATE_MAX(&srv->counters.ttime_max, t_close);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002810 }
2811 swrate_add(&s->be->be_counters.q_time, TIME_STATS_SAMPLES, t_queue);
2812 swrate_add(&s->be->be_counters.c_time, TIME_STATS_SAMPLES, t_connect);
2813 swrate_add(&s->be->be_counters.d_time, TIME_STATS_SAMPLES, t_data);
2814 swrate_add(&s->be->be_counters.t_time, TIME_STATS_SAMPLES, t_close);
Christopher Fauletdf73efe2019-11-08 14:53:15 +01002815 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.qtime_max, t_queue);
2816 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.ctime_max, t_connect);
2817 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.dtime_max, t_data);
2818 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.ttime_max, t_close);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002819}
2820
Willy Tarreau7c669d72008-06-20 15:04:11 +02002821/*
2822 * This function adjusts sess->srv_conn and maintains the previous and new
Willy Tarreau87b09662015-04-03 00:22:06 +02002823 * server's served stream counts. Setting newsrv to NULL is enough to release
Willy Tarreau7c669d72008-06-20 15:04:11 +02002824 * current connection slot. This function also notifies any LB algo which might
Willy Tarreau87b09662015-04-03 00:22:06 +02002825 * expect to be informed about any change in the number of active streams on a
Willy Tarreau7c669d72008-06-20 15:04:11 +02002826 * server.
2827 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002828void sess_change_server(struct stream *sess, struct server *newsrv)
Willy Tarreau7c669d72008-06-20 15:04:11 +02002829{
2830 if (sess->srv_conn == newsrv)
2831 return;
2832
2833 if (sess->srv_conn) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002834 _HA_ATOMIC_SUB(&sess->srv_conn->served, 1);
2835 _HA_ATOMIC_SUB(&sess->srv_conn->proxy->served, 1);
2836 __ha_barrier_atomic_store();
Christopher Faulet028d1852020-10-16 16:27:17 +02002837 if (sess->srv_conn->proxy->lbprm.server_drop_conn) {
2838 HA_SPIN_LOCK(SERVER_LOCK, &sess->srv_conn->lock);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002839 sess->srv_conn->proxy->lbprm.server_drop_conn(sess->srv_conn);
Christopher Faulet028d1852020-10-16 16:27:17 +02002840 HA_SPIN_UNLOCK(SERVER_LOCK, &sess->srv_conn->lock);
2841 }
Willy Tarreau87b09662015-04-03 00:22:06 +02002842 stream_del_srv_conn(sess);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002843 }
2844
2845 if (newsrv) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002846 _HA_ATOMIC_ADD(&newsrv->served, 1);
2847 _HA_ATOMIC_ADD(&newsrv->proxy->served, 1);
2848 __ha_barrier_atomic_store();
Christopher Faulet028d1852020-10-16 16:27:17 +02002849 if (newsrv->proxy->lbprm.server_take_conn) {
2850 HA_SPIN_LOCK(SERVER_LOCK, &newsrv->lock);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002851 newsrv->proxy->lbprm.server_take_conn(newsrv);
Christopher Faulet028d1852020-10-16 16:27:17 +02002852 HA_SPIN_UNLOCK(SERVER_LOCK, &newsrv->lock);
2853 }
Willy Tarreau87b09662015-04-03 00:22:06 +02002854 stream_add_srv_conn(sess, newsrv);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002855 }
2856}
2857
Willy Tarreau84455332009-03-15 22:34:05 +01002858/* Handle server-side errors for default protocols. It is called whenever a a
2859 * connection setup is aborted or a request is aborted in queue. It sets the
Willy Tarreau87b09662015-04-03 00:22:06 +02002860 * stream termination flags so that the caller does not have to worry about
Willy Tarreau84455332009-03-15 22:34:05 +01002861 * them. It's installed as ->srv_error for the server-side stream_interface.
2862 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002863void default_srv_error(struct stream *s, struct stream_interface *si)
Willy Tarreau84455332009-03-15 22:34:05 +01002864{
2865 int err_type = si->err_type;
2866 int err = 0, fin = 0;
2867
2868 if (err_type & SI_ET_QUEUE_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002869 err = SF_ERR_CLICL;
2870 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002871 }
2872 else if (err_type & SI_ET_CONN_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002873 err = SF_ERR_CLICL;
2874 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002875 }
2876 else if (err_type & SI_ET_QUEUE_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002877 err = SF_ERR_SRVTO;
2878 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002879 }
2880 else if (err_type & SI_ET_QUEUE_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002881 err = SF_ERR_SRVCL;
2882 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002883 }
2884 else if (err_type & SI_ET_CONN_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002885 err = SF_ERR_SRVTO;
2886 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002887 }
2888 else if (err_type & SI_ET_CONN_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002889 err = SF_ERR_SRVCL;
2890 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002891 }
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002892 else if (err_type & SI_ET_CONN_RES) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002893 err = SF_ERR_RESOURCE;
2894 fin = SF_FINST_C;
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002895 }
Willy Tarreau84455332009-03-15 22:34:05 +01002896 else /* SI_ET_CONN_OTHER and others */ {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002897 err = SF_ERR_INTERNAL;
2898 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002899 }
2900
Willy Tarreaue7dff022015-04-03 01:14:29 +02002901 if (!(s->flags & SF_ERR_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002902 s->flags |= err;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002903 if (!(s->flags & SF_FINST_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002904 s->flags |= fin;
2905}
Willy Tarreau7c669d72008-06-20 15:04:11 +02002906
Willy Tarreaue7dff022015-04-03 01:14:29 +02002907/* kill a stream and set the termination flags to <why> (one of SF_ERR_*) */
Willy Tarreau87b09662015-04-03 00:22:06 +02002908void stream_shutdown(struct stream *stream, int why)
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002909{
Willy Tarreau87b09662015-04-03 00:22:06 +02002910 if (stream->req.flags & (CF_SHUTW|CF_SHUTW_NOW))
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002911 return;
2912
Willy Tarreau87b09662015-04-03 00:22:06 +02002913 channel_shutw_now(&stream->req);
2914 channel_shutr_now(&stream->res);
2915 stream->task->nice = 1024;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002916 if (!(stream->flags & SF_ERR_MASK))
Willy Tarreau87b09662015-04-03 00:22:06 +02002917 stream->flags |= why;
2918 task_wakeup(stream->task, TASK_WOKEN_OTHER);
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002919}
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02002920
Willy Tarreau5484d582019-05-22 09:33:03 +02002921/* Appends a dump of the state of stream <s> into buffer <buf> which must have
2922 * preliminary be prepared by its caller, with each line prepended by prefix
2923 * <pfx>, and each line terminated by character <eol>.
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002924 */
Willy Tarreau5484d582019-05-22 09:33:03 +02002925void stream_dump(struct buffer *buf, const struct stream *s, const char *pfx, char eol)
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002926{
2927 const struct conn_stream *csf, *csb;
2928 const struct connection *cof, *cob;
2929 const struct appctx *acf, *acb;
2930 const struct server *srv;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002931 const char *src = "unknown";
2932 const char *dst = "unknown";
2933 char pn[INET6_ADDRSTRLEN];
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002934 const struct channel *req, *res;
2935 const struct stream_interface *si_f, *si_b;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002936
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002937 if (!s) {
Willy Tarreau5484d582019-05-22 09:33:03 +02002938 chunk_appendf(buf, "%sstrm=%p%c", pfx, s, eol);
2939 return;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002940 }
2941
Willy Tarreau5484d582019-05-22 09:33:03 +02002942 if (s->obj_type != OBJ_TYPE_STREAM) {
2943 chunk_appendf(buf, "%sstrm=%p [invalid type=%d(%s)]%c",
2944 pfx, s, s->obj_type, obj_type_name(&s->obj_type), eol);
2945 return;
2946 }
2947
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002948 si_f = &s->si[0];
2949 si_b = &s->si[1];
2950 req = &s->req;
2951 res = &s->res;
2952
2953 csf = objt_cs(si_f->end);
2954 cof = cs_conn(csf);
2955 acf = objt_appctx(si_f->end);
2956 if (cof && addr_to_str(&cof->addr.from, pn, sizeof(pn)) >= 0)
2957 src = pn;
2958 else if (acf)
2959 src = acf->applet->name;
2960
2961 csb = objt_cs(si_b->end);
2962 cob = cs_conn(csb);
2963 acb = objt_appctx(si_b->end);
2964 srv = objt_server(s->target);
2965 if (srv)
2966 dst = srv->id;
2967 else if (acb)
2968 dst = acb->applet->name;
2969
Willy Tarreau5484d582019-05-22 09:33:03 +02002970 chunk_appendf(buf,
2971 "%sstrm=%p src=%s fe=%s be=%s dst=%s%c"
2972 "%srqf=%x rqa=%x rpf=%x rpa=%x sif=%s,%x sib=%s,%x%c"
2973 "%saf=%p,%u csf=%p,%x%c"
2974 "%sab=%p,%u csb=%p,%x%c"
2975 "%scof=%p,%x:%s(%p)/%s(%p)/%s(%d)%c"
2976 "%scob=%p,%x:%s(%p)/%s(%p)/%s(%d)%c"
2977 "",
2978 pfx, s, src, s->sess->fe->id, s->be->id, dst, eol,
2979 pfx, req->flags, req->analysers, res->flags, res->analysers,
2980 si_state_str(si_f->state), si_f->flags,
2981 si_state_str(si_b->state), si_b->flags, eol,
2982 pfx, acf, acf ? acf->st0 : 0, csf, csf ? csf->flags : 0, eol,
2983 pfx, acb, acb ? acb->st0 : 0, csb, csb ? csb->flags : 0, eol,
2984 pfx, cof, cof ? cof->flags : 0, conn_get_mux_name(cof), cof?cof->ctx:0, conn_get_xprt_name(cof),
2985 cof ? cof->xprt_ctx : 0, conn_get_ctrl_name(cof), cof ? cof->handle.fd : 0, eol,
2986 pfx, cob, cob ? cob->flags : 0, conn_get_mux_name(cob), cob?cob->ctx:0, conn_get_xprt_name(cob),
2987 cob ? cob->xprt_ctx : 0, conn_get_ctrl_name(cob), cob ? cob->handle.fd : 0, eol);
2988}
2989
2990/* dumps an error message for type <type> at ptr <ptr> related to stream <s>,
Willy Tarreaub106ce12019-05-22 08:57:01 +02002991 * having reached loop rate <rate>, then aborts hoping to retrieve a core.
Willy Tarreau5484d582019-05-22 09:33:03 +02002992 */
2993void stream_dump_and_crash(enum obj_type *obj, int rate)
2994{
2995 const struct stream *s;
Willy Tarreau5484d582019-05-22 09:33:03 +02002996 char *msg = NULL;
2997 const void *ptr;
2998
2999 ptr = s = objt_stream(obj);
3000 if (!s) {
3001 const struct appctx *appctx = objt_appctx(obj);
3002 if (!appctx)
3003 return;
3004 ptr = appctx;
3005 s = si_strm(appctx->owner);
3006 if (!s)
3007 return;
3008 }
3009
Willy Tarreau5484d582019-05-22 09:33:03 +02003010 chunk_reset(&trash);
3011 stream_dump(&trash, s, "", ' ');
Willy Tarreaudb4ff452020-05-01 16:57:02 +02003012
3013 chunk_appendf(&trash, "filters={");
3014 if (HAS_FILTERS(s)) {
3015 struct filter *filter;
3016
3017 list_for_each_entry(filter, &s->strm_flt.filters, list) {
3018 if (filter->list.p != &s->strm_flt.filters)
3019 chunk_appendf(&trash, ", ");
3020 chunk_appendf(&trash, "%p=\"%s\"", filter, FLT_ID(filter));
3021 }
3022 }
3023 chunk_appendf(&trash, "}");
3024
Willy Tarreaub106ce12019-05-22 08:57:01 +02003025 memprintf(&msg,
3026 "A bogus %s [%p] is spinning at %d calls per second and refuses to die, "
3027 "aborting now! Please report this error to developers "
3028 "[%s]\n",
Willy Tarreau5484d582019-05-22 09:33:03 +02003029 obj_type_name(obj), ptr, rate, trash.area);
Willy Tarreau71c07ac2019-04-25 19:08:48 +02003030
3031 ha_alert("%s", msg);
3032 send_log(NULL, LOG_EMERG, "%s", msg);
3033 abort();
3034}
3035
Willy Tarreau8b22a712010-06-18 17:46:06 +02003036/************************************************************************/
3037/* All supported ACL keywords must be declared here. */
3038/************************************************************************/
3039
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003040/* 0=OK, <0=Alert, >0=Warning */
3041static enum act_parse_ret stream_parse_use_service(const char **args, int *cur_arg,
3042 struct proxy *px, struct act_rule *rule,
3043 char **err)
3044{
3045 struct action_kw *kw;
3046
3047 /* Check if the service name exists. */
3048 if (*(args[*cur_arg]) == 0) {
3049 memprintf(err, "'%s' expects a service name.", args[0]);
Thierry FOURNIER337eae12015-11-26 19:48:04 +01003050 return ACT_RET_PRS_ERR;
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003051 }
3052
3053 /* lookup for keyword corresponding to a service. */
3054 kw = action_lookup(&service_keywords, args[*cur_arg]);
3055 if (!kw) {
3056 memprintf(err, "'%s' unknown service name.", args[1]);
3057 return ACT_RET_PRS_ERR;
3058 }
3059 (*cur_arg)++;
3060
3061 /* executes specific rule parser. */
3062 rule->kw = kw;
3063 if (kw->parse((const char **)args, cur_arg, px, rule, err) == ACT_RET_PRS_ERR)
3064 return ACT_RET_PRS_ERR;
3065
3066 /* Register processing function. */
3067 rule->action_ptr = process_use_service;
3068 rule->action = ACT_CUSTOM;
3069
3070 return ACT_RET_PRS_OK;
3071}
3072
3073void service_keywords_register(struct action_kw_list *kw_list)
3074{
3075 LIST_ADDQ(&service_keywords, &kw_list->list);
3076}
3077
Willy Tarreau679bba12019-03-19 08:08:10 +01003078/* Lists the known services on <out> */
3079void list_services(FILE *out)
3080{
3081 struct action_kw_list *kw_list;
3082 int found = 0;
3083 int i;
3084
3085 fprintf(out, "Available services :");
3086 list_for_each_entry(kw_list, &service_keywords, list) {
3087 for (i = 0; kw_list->kw[i].kw != NULL; i++) {
3088 if (!found)
3089 fputc('\n', out);
3090 found = 1;
3091 fprintf(out, "\t%s\n", kw_list->kw[i].kw);
3092 }
3093 }
3094 if (!found)
3095 fprintf(out, " none\n");
3096}
William Lallemand4c5b4d52016-11-21 08:51:11 +01003097
3098/* This function dumps a complete stream state onto the stream interface's
3099 * read buffer. The stream has to be set in strm. It returns 0 if the output
3100 * buffer is full and it needs to be called again, otherwise non-zero. It is
3101 * designed to be called from stats_dump_strm_to_buffer() below.
3102 */
3103static int stats_dump_full_strm_to_buffer(struct stream_interface *si, struct stream *strm)
3104{
3105 struct appctx *appctx = __objt_appctx(si->end);
3106 struct tm tm;
3107 extern const char *monthname[12];
3108 char pn[INET6_ADDRSTRLEN];
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003109 struct conn_stream *cs;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003110 struct connection *conn;
3111 struct appctx *tmpctx;
3112
3113 chunk_reset(&trash);
3114
3115 if (appctx->ctx.sess.section > 0 && appctx->ctx.sess.uid != strm->uniq_id) {
3116 /* stream changed, no need to go any further */
3117 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
Willy Tarreaue6e52362019-01-04 17:42:57 +01003118 if (ci_putchk(si_ic(si), &trash) == -1)
3119 goto full;
3120 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003121 }
3122
3123 switch (appctx->ctx.sess.section) {
3124 case 0: /* main status of the stream */
3125 appctx->ctx.sess.uid = strm->uniq_id;
3126 appctx->ctx.sess.section = 1;
3127 /* fall through */
3128
3129 case 1:
3130 get_localtime(strm->logs.accept_date.tv_sec, &tm);
3131 chunk_appendf(&trash,
3132 "%p: [%02d/%s/%04d:%02d:%02d:%02d.%06d] id=%u proto=%s",
3133 strm,
3134 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
3135 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(strm->logs.accept_date.tv_usec),
3136 strm->uniq_id,
3137 strm_li(strm) ? strm_li(strm)->proto->name : "?");
3138
3139 conn = objt_conn(strm_orig(strm));
3140 switch (conn ? addr_to_str(&conn->addr.from, pn, sizeof(pn)) : AF_UNSPEC) {
3141 case AF_INET:
3142 case AF_INET6:
3143 chunk_appendf(&trash, " source=%s:%d\n",
3144 pn, get_host_port(&conn->addr.from));
3145 break;
3146 case AF_UNIX:
3147 chunk_appendf(&trash, " source=unix:%d\n", strm_li(strm)->luid);
3148 break;
3149 default:
3150 /* no more information to print right now */
3151 chunk_appendf(&trash, "\n");
3152 break;
3153 }
3154
3155 chunk_appendf(&trash,
Willy Tarreauadf7a152019-01-07 10:10:07 +01003156 " flags=0x%x, conn_retries=%d, srv_conn=%p, pend_pos=%p waiting=%d\n",
3157 strm->flags, strm->si[1].conn_retries, strm->srv_conn, strm->pend_pos,
3158 !LIST_ISEMPTY(&strm->buffer_wait.list));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003159
3160 chunk_appendf(&trash,
3161 " frontend=%s (id=%u mode=%s), listener=%s (id=%u)",
3162 strm_fe(strm)->id, strm_fe(strm)->uuid, strm_fe(strm)->mode ? "http" : "tcp",
3163 strm_li(strm) ? strm_li(strm)->name ? strm_li(strm)->name : "?" : "?",
3164 strm_li(strm) ? strm_li(strm)->luid : 0);
3165
3166 if (conn)
3167 conn_get_to_addr(conn);
3168
3169 switch (conn ? addr_to_str(&conn->addr.to, pn, sizeof(pn)) : AF_UNSPEC) {
3170 case AF_INET:
3171 case AF_INET6:
3172 chunk_appendf(&trash, " addr=%s:%d\n",
3173 pn, get_host_port(&conn->addr.to));
3174 break;
3175 case AF_UNIX:
3176 chunk_appendf(&trash, " addr=unix:%d\n", strm_li(strm)->luid);
3177 break;
3178 default:
3179 /* no more information to print right now */
3180 chunk_appendf(&trash, "\n");
3181 break;
3182 }
3183
3184 if (strm->be->cap & PR_CAP_BE)
3185 chunk_appendf(&trash,
3186 " backend=%s (id=%u mode=%s)",
3187 strm->be->id,
3188 strm->be->uuid, strm->be->mode ? "http" : "tcp");
3189 else
3190 chunk_appendf(&trash, " backend=<NONE> (id=-1 mode=-)");
3191
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003192 cs = objt_cs(strm->si[1].end);
3193 conn = cs_conn(cs);
3194
William Lallemand4c5b4d52016-11-21 08:51:11 +01003195 if (conn)
3196 conn_get_from_addr(conn);
3197
3198 switch (conn ? addr_to_str(&conn->addr.from, pn, sizeof(pn)) : AF_UNSPEC) {
3199 case AF_INET:
3200 case AF_INET6:
3201 chunk_appendf(&trash, " addr=%s:%d\n",
3202 pn, get_host_port(&conn->addr.from));
3203 break;
3204 case AF_UNIX:
3205 chunk_appendf(&trash, " addr=unix\n");
3206 break;
3207 default:
3208 /* no more information to print right now */
3209 chunk_appendf(&trash, "\n");
3210 break;
3211 }
3212
3213 if (strm->be->cap & PR_CAP_BE)
3214 chunk_appendf(&trash,
3215 " server=%s (id=%u)",
3216 objt_server(strm->target) ? objt_server(strm->target)->id : "<none>",
3217 objt_server(strm->target) ? objt_server(strm->target)->puid : 0);
3218 else
3219 chunk_appendf(&trash, " server=<NONE> (id=-1)");
3220
3221 if (conn)
3222 conn_get_to_addr(conn);
3223
3224 switch (conn ? addr_to_str(&conn->addr.to, pn, sizeof(pn)) : AF_UNSPEC) {
3225 case AF_INET:
3226 case AF_INET6:
3227 chunk_appendf(&trash, " addr=%s:%d\n",
3228 pn, get_host_port(&conn->addr.to));
3229 break;
3230 case AF_UNIX:
3231 chunk_appendf(&trash, " addr=unix\n");
3232 break;
3233 default:
3234 /* no more information to print right now */
3235 chunk_appendf(&trash, "\n");
3236 break;
3237 }
3238
3239 chunk_appendf(&trash,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003240 " task=%p (state=0x%02x nice=%d calls=%u rate=%u exp=%s tmask=0x%lx%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003241 strm->task,
3242 strm->task->state,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003243 strm->task->nice, strm->task->calls, read_freq_ctr(&strm->call_rate),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003244 strm->task->expire ?
3245 tick_is_expired(strm->task->expire, now_ms) ? "<PAST>" :
3246 human_time(TICKS_TO_MS(strm->task->expire - now_ms),
3247 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Fauletf0205062017-11-15 20:56:43 +01003248 strm->task->thread_mask,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003249 task_in_rq(strm->task) ? ", running" : "");
3250
3251 chunk_appendf(&trash,
3252 " age=%s)\n",
3253 human_time(now.tv_sec - strm->logs.accept_date.tv_sec, 1));
3254
3255 if (strm->txn)
3256 chunk_appendf(&trash,
Willy Tarreau7778b592019-01-07 10:38:10 +01003257 " txn=%p flags=0x%x meth=%d status=%d req.st=%s rsp.st=%s\n"
3258 " req.f=0x%02x blen=%llu chnk=%llu next=%u\n"
3259 " rsp.f=0x%02x blen=%llu chnk=%llu next=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003260 strm->txn, strm->txn->flags, strm->txn->meth, strm->txn->status,
Willy Tarreau7778b592019-01-07 10:38:10 +01003261 h1_msg_state_str(strm->txn->req.msg_state), h1_msg_state_str(strm->txn->rsp.msg_state),
3262 strm->txn->req.flags, strm->txn->req.body_len, strm->txn->req.chunk_len, strm->txn->req.next,
3263 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 +01003264
3265 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01003266 " 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 +01003267 &strm->si[0],
3268 si_state_str(strm->si[0].state),
3269 strm->si[0].flags,
3270 obj_type_name(strm->si[0].end),
3271 obj_base_ptr(strm->si[0].end),
3272 strm->si[0].exp ?
3273 tick_is_expired(strm->si[0].exp, now_ms) ? "<PAST>" :
3274 human_time(TICKS_TO_MS(strm->si[0].exp - now_ms),
3275 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01003276 strm->si[0].err_type, strm->si[0].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003277
3278 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01003279 " 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 +01003280 &strm->si[1],
3281 si_state_str(strm->si[1].state),
3282 strm->si[1].flags,
3283 obj_type_name(strm->si[1].end),
3284 obj_base_ptr(strm->si[1].end),
3285 strm->si[1].exp ?
3286 tick_is_expired(strm->si[1].exp, now_ms) ? "<PAST>" :
3287 human_time(TICKS_TO_MS(strm->si[1].exp - now_ms),
3288 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01003289 strm->si[1].err_type, strm->si[1].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003290
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003291 if ((cs = objt_cs(strm->si[0].end)) != NULL) {
3292 conn = cs->conn;
3293
William Lallemand4c5b4d52016-11-21 08:51:11 +01003294 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02003295 " co0=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003296 conn,
3297 conn_get_ctrl_name(conn),
3298 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02003299 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003300 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003301 obj_type_name(conn->target),
3302 obj_base_ptr(conn->target));
3303
3304 chunk_appendf(&trash,
Christopher Fauletf0205062017-11-15 20:56:43 +01003305 " 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 +01003306 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003307 conn->handle.fd,
3308 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Olivier Houchard12568362018-01-31 18:07:29 +01003309 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].cache.next >= -2 : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01003310 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01003311 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01003312
3313 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003314 }
3315 else if ((tmpctx = objt_appctx(strm->si[0].end)) != NULL) {
3316 chunk_appendf(&trash,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003317 " 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 +01003318 tmpctx,
3319 tmpctx->st0,
3320 tmpctx->st1,
3321 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01003322 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02003323 tmpctx->thread_mask,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003324 tmpctx->t->nice, tmpctx->t->calls, read_freq_ctr(&tmpctx->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003325 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003326 }
3327
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003328 if ((cs = objt_cs(strm->si[1].end)) != NULL) {
3329 conn = cs->conn;
3330
William Lallemand4c5b4d52016-11-21 08:51:11 +01003331 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02003332 " co1=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003333 conn,
3334 conn_get_ctrl_name(conn),
3335 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02003336 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003337 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003338 obj_type_name(conn->target),
3339 obj_base_ptr(conn->target));
3340
3341 chunk_appendf(&trash,
Christopher Fauletf0205062017-11-15 20:56:43 +01003342 " 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 +01003343 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003344 conn->handle.fd,
3345 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Olivier Houchard12568362018-01-31 18:07:29 +01003346 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].cache.next >= -2 : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01003347 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01003348 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01003349
3350 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003351 }
3352 else if ((tmpctx = objt_appctx(strm->si[1].end)) != NULL) {
3353 chunk_appendf(&trash,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003354 " 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 +01003355 tmpctx,
3356 tmpctx->st0,
3357 tmpctx->st1,
3358 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01003359 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02003360 tmpctx->thread_mask,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003361 tmpctx->t->nice, tmpctx->t->calls, read_freq_ctr(&tmpctx->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003362 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003363 }
3364
3365 chunk_appendf(&trash,
3366 " req=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
3367 " an_exp=%s",
3368 &strm->req,
3369 strm->req.flags, strm->req.analysers,
3370 strm->req.pipe ? strm->req.pipe->data : 0,
3371 strm->req.to_forward, strm->req.total,
3372 strm->req.analyse_exp ?
3373 human_time(TICKS_TO_MS(strm->req.analyse_exp - now_ms),
3374 TICKS_TO_MS(1000)) : "<NEVER>");
3375
3376 chunk_appendf(&trash,
3377 " rex=%s",
3378 strm->req.rex ?
3379 human_time(TICKS_TO_MS(strm->req.rex - now_ms),
3380 TICKS_TO_MS(1000)) : "<NEVER>");
3381
3382 chunk_appendf(&trash,
3383 " wex=%s\n"
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003384 " buf=%p data=%p o=%u p=%u req.next=%d i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003385 strm->req.wex ?
3386 human_time(TICKS_TO_MS(strm->req.wex - now_ms),
3387 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003388 &strm->req.buf,
3389 b_orig(&strm->req.buf), (unsigned int)co_data(&strm->req),
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003390 (unsigned int)ci_head_ofs(&strm->req),
Willy Tarreau591d4452018-06-15 17:21:00 +02003391 strm->txn ? strm->txn->req.next : 0, (unsigned int)ci_data(&strm->req),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003392 (unsigned int)strm->req.buf.size);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003393
Christopher Fauletb9af8812019-01-04 14:30:44 +01003394 if (IS_HTX_STRM(strm)) {
3395 struct htx *htx = htxbuf(&strm->req.buf);
3396
3397 chunk_appendf(&trash,
Willy Tarreaub84e67f2019-01-07 10:01:34 +01003398 " htx=%p flags=0x%x size=%u data=%u used=%u wrap=%s extra=%llu\n",
3399 htx, htx->flags, htx->size, htx->data, htx->used,
Christopher Faulet28f29c72019-04-30 17:55:45 +02003400 (htx->tail >= htx->head) ? "NO" : "YES",
Christopher Fauletb9af8812019-01-04 14:30:44 +01003401 (unsigned long long)htx->extra);
3402 }
3403
William Lallemand4c5b4d52016-11-21 08:51:11 +01003404 chunk_appendf(&trash,
3405 " res=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
3406 " an_exp=%s",
3407 &strm->res,
3408 strm->res.flags, strm->res.analysers,
3409 strm->res.pipe ? strm->res.pipe->data : 0,
3410 strm->res.to_forward, strm->res.total,
3411 strm->res.analyse_exp ?
3412 human_time(TICKS_TO_MS(strm->res.analyse_exp - now_ms),
3413 TICKS_TO_MS(1000)) : "<NEVER>");
3414
3415 chunk_appendf(&trash,
3416 " rex=%s",
3417 strm->res.rex ?
3418 human_time(TICKS_TO_MS(strm->res.rex - now_ms),
3419 TICKS_TO_MS(1000)) : "<NEVER>");
3420
3421 chunk_appendf(&trash,
3422 " wex=%s\n"
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003423 " buf=%p data=%p o=%u p=%u rsp.next=%d i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003424 strm->res.wex ?
3425 human_time(TICKS_TO_MS(strm->res.wex - now_ms),
3426 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003427 &strm->res.buf,
3428 b_orig(&strm->res.buf), (unsigned int)co_data(&strm->res),
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003429 (unsigned int)ci_head_ofs(&strm->res),
Willy Tarreau591d4452018-06-15 17:21:00 +02003430 strm->txn ? strm->txn->rsp.next : 0, (unsigned int)ci_data(&strm->res),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003431 (unsigned int)strm->res.buf.size);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003432
Christopher Fauletb9af8812019-01-04 14:30:44 +01003433 if (IS_HTX_STRM(strm)) {
3434 struct htx *htx = htxbuf(&strm->res.buf);
3435
3436 chunk_appendf(&trash,
3437 " htx=%p flags=0x%x size=%u data=%u used=%u wrap=%s extra=%llu\n",
3438 htx, htx->flags, htx->size, htx->data, htx->used,
Christopher Faulet28f29c72019-04-30 17:55:45 +02003439 (htx->tail >= htx->head) ? "NO" : "YES",
Christopher Fauletb9af8812019-01-04 14:30:44 +01003440 (unsigned long long)htx->extra);
3441 }
3442
Willy Tarreaue6e52362019-01-04 17:42:57 +01003443 if (ci_putchk(si_ic(si), &trash) == -1)
3444 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003445
3446 /* use other states to dump the contents */
3447 }
3448 /* end of dump */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003449 done:
William Lallemand4c5b4d52016-11-21 08:51:11 +01003450 appctx->ctx.sess.uid = 0;
3451 appctx->ctx.sess.section = 0;
3452 return 1;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003453 full:
3454 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003455}
3456
3457
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003458static int cli_parse_show_sess(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemand4c5b4d52016-11-21 08:51:11 +01003459{
William Lallemand4c5b4d52016-11-21 08:51:11 +01003460 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
3461 return 1;
3462
3463 if (*args[2] && strcmp(args[2], "all") == 0)
3464 appctx->ctx.sess.target = (void *)-1;
3465 else if (*args[2])
3466 appctx->ctx.sess.target = (void *)strtoul(args[2], NULL, 0);
3467 else
3468 appctx->ctx.sess.target = NULL;
3469 appctx->ctx.sess.section = 0; /* start with stream status */
3470 appctx->ctx.sess.pos = 0;
3471
Willy Tarreau4271c772020-06-28 01:24:12 +02003472 /* we need to put an end marker into the streams list. We're just moving
3473 * ourselves there, so that once we found ourselves we know we've reached
3474 * the end. Without this we can run forever if new streams arrive faster
3475 * than we can dump them.
3476 */
3477 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
3478 LIST_DEL(&si_strm(appctx->owner)->list);
3479 LIST_ADDQ(&streams, &si_strm(appctx->owner)->list);
3480 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003481 return 0;
3482}
3483
3484/* This function dumps all streams' states onto the stream interface's
3485 * read buffer. It returns 0 if the output buffer is full and it needs
Willy Tarreaue6e52362019-01-04 17:42:57 +01003486 * to be called again, otherwise non-zero. It proceeds in an isolated
3487 * thread so there is no thread safety issue here.
William Lallemand4c5b4d52016-11-21 08:51:11 +01003488 */
3489static int cli_io_handler_dump_sess(struct appctx *appctx)
3490{
3491 struct stream_interface *si = appctx->owner;
3492 struct connection *conn;
3493
Willy Tarreaue6e52362019-01-04 17:42:57 +01003494 thread_isolate();
3495
William Lallemand4c5b4d52016-11-21 08:51:11 +01003496 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW))) {
3497 /* If we're forced to shut down, we might have to remove our
3498 * reference to the last stream being dumped.
3499 */
3500 if (appctx->st2 == STAT_ST_LIST) {
3501 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users)) {
3502 LIST_DEL(&appctx->ctx.sess.bref.users);
3503 LIST_INIT(&appctx->ctx.sess.bref.users);
3504 }
3505 }
Willy Tarreaue6e52362019-01-04 17:42:57 +01003506 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003507 }
3508
3509 chunk_reset(&trash);
3510
3511 switch (appctx->st2) {
3512 case STAT_ST_INIT:
3513 /* the function had not been called yet, let's prepare the
3514 * buffer for a response. We initialize the current stream
3515 * pointer to the first in the global list. When a target
3516 * stream is being destroyed, it is responsible for updating
3517 * this pointer. We know we have reached the end when this
3518 * pointer points back to the head of the streams list.
3519 */
3520 LIST_INIT(&appctx->ctx.sess.bref.users);
3521 appctx->ctx.sess.bref.ref = streams.n;
3522 appctx->st2 = STAT_ST_LIST;
3523 /* fall through */
3524
3525 case STAT_ST_LIST:
3526 /* first, let's detach the back-ref from a possible previous stream */
3527 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users)) {
3528 LIST_DEL(&appctx->ctx.sess.bref.users);
3529 LIST_INIT(&appctx->ctx.sess.bref.users);
3530 }
3531
Willy Tarreau4271c772020-06-28 01:24:12 +02003532 /* and start from where we stopped, never going further than ourselves */
3533 while (appctx->ctx.sess.bref.ref != si_strm(appctx->owner)->list.n) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003534 char pn[INET6_ADDRSTRLEN];
3535 struct stream *curr_strm;
3536
3537 curr_strm = LIST_ELEM(appctx->ctx.sess.bref.ref, struct stream *, list);
3538
3539 if (appctx->ctx.sess.target) {
3540 if (appctx->ctx.sess.target != (void *)-1 && appctx->ctx.sess.target != curr_strm)
3541 goto next_sess;
3542
3543 LIST_ADDQ(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
3544 /* call the proper dump() function and return if we're missing space */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003545 if (!stats_dump_full_strm_to_buffer(si, curr_strm))
3546 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003547
3548 /* stream dump complete */
3549 LIST_DEL(&appctx->ctx.sess.bref.users);
3550 LIST_INIT(&appctx->ctx.sess.bref.users);
3551 if (appctx->ctx.sess.target != (void *)-1) {
3552 appctx->ctx.sess.target = NULL;
3553 break;
3554 }
3555 else
3556 goto next_sess;
3557 }
3558
3559 chunk_appendf(&trash,
3560 "%p: proto=%s",
3561 curr_strm,
3562 strm_li(curr_strm) ? strm_li(curr_strm)->proto->name : "?");
3563
3564 conn = objt_conn(strm_orig(curr_strm));
3565 switch (conn ? addr_to_str(&conn->addr.from, pn, sizeof(pn)) : AF_UNSPEC) {
3566 case AF_INET:
3567 case AF_INET6:
3568 chunk_appendf(&trash,
3569 " src=%s:%d fe=%s be=%s srv=%s",
3570 pn,
3571 get_host_port(&conn->addr.from),
3572 strm_fe(curr_strm)->id,
3573 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
3574 objt_server(curr_strm->target) ? objt_server(curr_strm->target)->id : "<none>"
3575 );
3576 break;
3577 case AF_UNIX:
3578 chunk_appendf(&trash,
3579 " src=unix:%d fe=%s be=%s srv=%s",
3580 strm_li(curr_strm)->luid,
3581 strm_fe(curr_strm)->id,
3582 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
3583 objt_server(curr_strm->target) ? objt_server(curr_strm->target)->id : "<none>"
3584 );
3585 break;
3586 }
3587
3588 chunk_appendf(&trash,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003589 " ts=%02x age=%s calls=%u rate=%u cpu=%llu lat=%llu",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003590 curr_strm->task->state,
3591 human_time(now.tv_sec - curr_strm->logs.tv_accept.tv_sec, 1),
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003592 curr_strm->task->calls, read_freq_ctr(&curr_strm->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003593 (unsigned long long)curr_strm->task->cpu_time, (unsigned long long)curr_strm->task->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003594
3595 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003596 " rq[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003597 curr_strm->req.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003598 (unsigned int)ci_data(&curr_strm->req),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003599 curr_strm->req.analysers,
3600 curr_strm->req.rex ?
3601 human_time(TICKS_TO_MS(curr_strm->req.rex - now_ms),
3602 TICKS_TO_MS(1000)) : "");
3603
3604 chunk_appendf(&trash,
3605 ",wx=%s",
3606 curr_strm->req.wex ?
3607 human_time(TICKS_TO_MS(curr_strm->req.wex - now_ms),
3608 TICKS_TO_MS(1000)) : "");
3609
3610 chunk_appendf(&trash,
3611 ",ax=%s]",
3612 curr_strm->req.analyse_exp ?
3613 human_time(TICKS_TO_MS(curr_strm->req.analyse_exp - now_ms),
3614 TICKS_TO_MS(1000)) : "");
3615
3616 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003617 " rp[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003618 curr_strm->res.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003619 (unsigned int)ci_data(&curr_strm->res),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003620 curr_strm->res.analysers,
3621 curr_strm->res.rex ?
3622 human_time(TICKS_TO_MS(curr_strm->res.rex - now_ms),
3623 TICKS_TO_MS(1000)) : "");
3624
3625 chunk_appendf(&trash,
3626 ",wx=%s",
3627 curr_strm->res.wex ?
3628 human_time(TICKS_TO_MS(curr_strm->res.wex - now_ms),
3629 TICKS_TO_MS(1000)) : "");
3630
3631 chunk_appendf(&trash,
3632 ",ax=%s]",
3633 curr_strm->res.analyse_exp ?
3634 human_time(TICKS_TO_MS(curr_strm->res.analyse_exp - now_ms),
3635 TICKS_TO_MS(1000)) : "");
3636
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003637 conn = cs_conn(objt_cs(curr_strm->si[0].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003638 chunk_appendf(&trash,
3639 " s0=[%d,%1xh,fd=%d,ex=%s]",
3640 curr_strm->si[0].state,
3641 curr_strm->si[0].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003642 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003643 curr_strm->si[0].exp ?
3644 human_time(TICKS_TO_MS(curr_strm->si[0].exp - now_ms),
3645 TICKS_TO_MS(1000)) : "");
3646
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003647 conn = cs_conn(objt_cs(curr_strm->si[1].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003648 chunk_appendf(&trash,
3649 " s1=[%d,%1xh,fd=%d,ex=%s]",
3650 curr_strm->si[1].state,
3651 curr_strm->si[1].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003652 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003653 curr_strm->si[1].exp ?
3654 human_time(TICKS_TO_MS(curr_strm->si[1].exp - now_ms),
3655 TICKS_TO_MS(1000)) : "");
3656
3657 chunk_appendf(&trash,
3658 " exp=%s",
3659 curr_strm->task->expire ?
3660 human_time(TICKS_TO_MS(curr_strm->task->expire - now_ms),
3661 TICKS_TO_MS(1000)) : "");
3662 if (task_in_rq(curr_strm->task))
3663 chunk_appendf(&trash, " run(nice=%d)", curr_strm->task->nice);
3664
3665 chunk_appendf(&trash, "\n");
3666
Willy Tarreau06d80a92017-10-19 14:32:15 +02003667 if (ci_putchk(si_ic(si), &trash) == -1) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003668 /* let's try again later from this stream. We add ourselves into
3669 * this stream's users so that it can remove us upon termination.
3670 */
William Lallemand4c5b4d52016-11-21 08:51:11 +01003671 LIST_ADDQ(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
Willy Tarreaue6e52362019-01-04 17:42:57 +01003672 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003673 }
3674
3675 next_sess:
3676 appctx->ctx.sess.bref.ref = curr_strm->list.n;
3677 }
3678
3679 if (appctx->ctx.sess.target && appctx->ctx.sess.target != (void *)-1) {
3680 /* specified stream not found */
3681 if (appctx->ctx.sess.section > 0)
3682 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
3683 else
3684 chunk_appendf(&trash, "Session not found.\n");
3685
Willy Tarreaue6e52362019-01-04 17:42:57 +01003686 if (ci_putchk(si_ic(si), &trash) == -1)
3687 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003688
3689 appctx->ctx.sess.target = NULL;
3690 appctx->ctx.sess.uid = 0;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003691 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003692 }
William Lallemand4c5b4d52016-11-21 08:51:11 +01003693 /* fall through */
3694
3695 default:
3696 appctx->st2 = STAT_ST_FIN;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003697 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003698 }
Willy Tarreaue6e52362019-01-04 17:42:57 +01003699 done:
3700 thread_release();
3701 return 1;
3702 full:
3703 thread_release();
3704 si_rx_room_blk(si);
3705 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003706}
3707
3708static void cli_release_show_sess(struct appctx *appctx)
3709{
3710 if (appctx->st2 == STAT_ST_LIST) {
Willy Tarreau7ce3f092017-11-10 16:24:41 +01003711 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003712 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users))
3713 LIST_DEL(&appctx->ctx.sess.bref.users);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003714 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003715 }
3716}
3717
Willy Tarreau61b65212016-11-24 11:09:25 +01003718/* Parses the "shutdown session" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003719static int cli_parse_shutdown_session(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau61b65212016-11-24 11:09:25 +01003720{
3721 struct stream *strm, *ptr;
3722
3723 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3724 return 1;
3725
3726 if (!*args[2]) {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +02003727 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreau61b65212016-11-24 11:09:25 +01003728 appctx->ctx.cli.msg = "Session pointer expected (use 'show sess').\n";
Willy Tarreau3b6e5472016-11-24 15:53:53 +01003729 appctx->st0 = CLI_ST_PRINT;
Willy Tarreau61b65212016-11-24 11:09:25 +01003730 return 1;
3731 }
3732
3733 ptr = (void *)strtoul(args[2], NULL, 0);
3734
3735 /* first, look for the requested stream in the stream table */
3736 list_for_each_entry(strm, &streams, list) {
3737 if (strm == ptr)
3738 break;
3739 }
3740
3741 /* do we have the stream ? */
3742 if (strm != ptr) {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +02003743 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreau61b65212016-11-24 11:09:25 +01003744 appctx->ctx.cli.msg = "No such session (use 'show sess').\n";
Willy Tarreau3b6e5472016-11-24 15:53:53 +01003745 appctx->st0 = CLI_ST_PRINT;
Willy Tarreau61b65212016-11-24 11:09:25 +01003746 return 1;
3747 }
3748
3749 stream_shutdown(strm, SF_ERR_KILLED);
3750 return 1;
3751}
3752
Willy Tarreau4e46b622016-11-23 16:50:48 +01003753/* Parses the "shutdown session server" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003754static int cli_parse_shutdown_sessions_server(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau4e46b622016-11-23 16:50:48 +01003755{
3756 struct server *sv;
3757 struct stream *strm, *strm_bck;
3758
3759 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3760 return 1;
3761
3762 sv = cli_find_server(appctx, args[3]);
3763 if (!sv)
3764 return 1;
3765
3766 /* kill all the stream that are on this server */
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003767 HA_SPIN_LOCK(SERVER_LOCK, &sv->lock);
Willy Tarreau4e46b622016-11-23 16:50:48 +01003768 list_for_each_entry_safe(strm, strm_bck, &sv->actconns, by_srv)
3769 if (strm->srv_conn == sv)
3770 stream_shutdown(strm, SF_ERR_KILLED);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003771 HA_SPIN_UNLOCK(SERVER_LOCK, &sv->lock);
Willy Tarreau4e46b622016-11-23 16:50:48 +01003772 return 1;
3773}
3774
William Lallemand4c5b4d52016-11-21 08:51:11 +01003775/* register cli keywords */
3776static struct cli_kw_list cli_kws = {{ },{
3777 { { "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 +01003778 { { "shutdown", "session", NULL }, "shutdown session : kill a specific session", cli_parse_shutdown_session, NULL, NULL },
Willy Tarreau4e46b622016-11-23 16:50:48 +01003779 { { "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 +01003780 {{},}
3781}};
3782
Willy Tarreau0108d902018-11-25 19:14:37 +01003783INITCALL1(STG_REGISTER, cli_register_kw, &cli_kws);
3784
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003785/* main configuration keyword registration. */
3786static struct action_kw_list stream_tcp_keywords = { ILH, {
3787 { "use-service", stream_parse_use_service },
3788 { /* END */ }
3789}};
3790
Willy Tarreau0108d902018-11-25 19:14:37 +01003791INITCALL1(STG_REGISTER, tcp_req_cont_keywords_register, &stream_tcp_keywords);
3792
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003793static struct action_kw_list stream_http_keywords = { ILH, {
3794 { "use-service", stream_parse_use_service },
3795 { /* END */ }
3796}};
3797
Willy Tarreau0108d902018-11-25 19:14:37 +01003798INITCALL1(STG_REGISTER, http_req_keywords_register, &stream_http_keywords);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003799
Willy Tarreaubaaee002006-06-26 02:48:02 +02003800/*
3801 * Local variables:
3802 * c-indent-level: 8
3803 * c-basic-offset: 8
3804 * End:
3805 */