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Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
Willy Tarreau87b09662015-04-03 00:22:06 +02002 * Stream management functions.
Willy Tarreaubaaee002006-06-26 02:48:02 +02003 *
Willy Tarreaud28c3532012-04-19 19:28:33 +02004 * Copyright 2000-2012 Willy Tarreau <w@1wt.eu>
Willy Tarreaubaaee002006-06-26 02:48:02 +02005 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 *
11 */
12
13#include <stdlib.h>
Willy Tarreau81f9aa32010-06-01 17:45:26 +020014#include <unistd.h>
15#include <fcntl.h>
Willy Tarreaue3ba5f02006-06-29 18:54:54 +020016
Thierry FOURNIER5a363e72015-09-27 19:29:33 +020017#include <common/cfgparse.h>
Willy Tarreaue3ba5f02006-06-29 18:54:54 +020018#include <common/config.h>
Willy Tarreau9b28e032012-10-12 23:49:43 +020019#include <common/buffer.h>
Willy Tarreau7c669d72008-06-20 15:04:11 +020020#include <common/debug.h>
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +020021#include <common/hathreads.h>
Willy Tarreaub96b77e2018-12-11 10:22:41 +010022#include <common/htx.h>
Willy Tarreau0108d902018-11-25 19:14:37 +010023#include <common/initcall.h>
24#include <common/memory.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020025
Willy Tarreau8a8d83b2015-04-13 13:24:54 +020026#include <types/applet.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020027#include <types/capture.h>
William Lallemand4c5b4d52016-11-21 08:51:11 +010028#include <types/cli.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +020029#include <types/filters.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010030#include <types/global.h>
William Lallemand9ed62032016-11-21 17:49:11 +010031#include <types/stats.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020032
Willy Tarreau1d0dfb12009-07-07 15:10:31 +020033#include <proto/acl.h>
Thierry FOURNIER5a363e72015-09-27 19:29:33 +020034#include <proto/action.h>
Willy Tarreau609aad92018-11-22 08:31:09 +010035#include <proto/activity.h>
Willy Tarreau61612d42012-04-19 18:42:05 +020036#include <proto/arg.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010037#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020038#include <proto/channel.h>
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +010039#include <proto/checks.h>
William Lallemand4c5b4d52016-11-21 08:51:11 +010040#include <proto/cli.h>
Willy Tarreaud2274c62012-07-06 14:29:45 +020041#include <proto/connection.h>
William Lallemand9ed62032016-11-21 17:49:11 +010042#include <proto/stats.h>
Willy Tarreaudd2f85e2012-09-02 22:34:23 +020043#include <proto/fd.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +020044#include <proto/filters.h>
Willy Tarreau91c43d72010-06-20 11:19:22 +020045#include <proto/freq_ctr.h>
Willy Tarreau3041b9f2010-10-15 23:25:20 +020046#include <proto/frontend.h>
Willy Tarreau8d5d7f22007-01-21 19:16:41 +010047#include <proto/hdr_idx.h>
Thierry FOURNIER65f34c62015-02-16 20:11:43 +010048#include <proto/hlua.h>
Willy Tarreau61c112a2018-10-02 16:43:32 +020049#include <proto/http_rules.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +020050#include <proto/listener.h>
Willy Tarreau332f8bf2007-05-13 21:36:56 +020051#include <proto/log.h>
Willy Tarreaucbaaec42012-09-06 11:32:07 +020052#include <proto/raw_sock.h>
Willy Tarreaufeb76402015-04-03 14:10:06 +020053#include <proto/session.h>
Willy Tarreau87b09662015-04-03 00:22:06 +020054#include <proto/stream.h>
Willy Tarreau3eba98a2009-01-25 13:56:13 +010055#include <proto/pipe.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010056#include <proto/proto_http.h>
Willy Tarreau1d0dfb12009-07-07 15:10:31 +020057#include <proto/proxy.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020058#include <proto/queue.h>
Willy Tarreau7f062c42009-03-05 18:43:00 +010059#include <proto/server.h>
Willy Tarreaucd3b0942012-04-27 21:52:18 +020060#include <proto/sample.h>
Emeric Brun1d33b292010-01-04 15:47:17 +010061#include <proto/stick_table.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010062#include <proto/stream_interface.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010063#include <proto/task.h>
Willy Tarreau39713102016-11-25 15:49:32 +010064#include <proto/tcp_rules.h>
Thierry FOURNIER4834bc72015-06-06 19:29:07 +020065#include <proto/vars.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020066
Willy Tarreau8ceae722018-11-26 11:58:30 +010067DECLARE_POOL(pool_head_stream, "stream", sizeof(struct stream));
68
Willy Tarreaub6b3df32018-11-26 16:31:20 +010069struct list streams = LIST_HEAD_INIT(streams);
Willy Tarreau86abe442018-11-25 20:12:18 +010070__decl_spinlock(streams_lock);
Willy Tarreaubaaee002006-06-26 02:48:02 +020071
Thierry FOURNIER5a363e72015-09-27 19:29:33 +020072/* List of all use-service keywords. */
73static struct list service_keywords = LIST_HEAD_INIT(service_keywords);
74
Willy Tarreau5790eb02017-08-28 17:18:36 +020075
76/* Create a new stream for connection <conn>. Return < 0 on error. This is only
77 * valid right after the handshake, before the connection's data layer is
78 * initialized, because it relies on the session to be in conn->owner.
79 */
Olivier Houchard9aaf7782017-09-13 18:30:23 +020080int stream_create_from_cs(struct conn_stream *cs)
Willy Tarreau5790eb02017-08-28 17:18:36 +020081{
82 struct stream *strm;
83
Olivier Houchard9aaf7782017-09-13 18:30:23 +020084 strm = stream_new(cs->conn->owner, &cs->obj_type);
Willy Tarreau5790eb02017-08-28 17:18:36 +020085 if (strm == NULL)
86 return -1;
87
88 task_wakeup(strm->task, TASK_WOKEN_INIT);
89 return 0;
90}
91
Willy Tarreaub882dd82018-11-06 15:50:21 +010092/* Callback used to wake up a stream when an input buffer is available. The
93 * stream <s>'s stream interfaces are checked for a failed buffer allocation
Willy Tarreaud0f5bbc2018-11-14 11:10:26 +010094 * as indicated by the presence of the SI_FL_RXBLK_ROOM flag and the lack of a
Willy Tarreaub882dd82018-11-06 15:50:21 +010095 * buffer, and and input buffer is assigned there (at most one). The function
96 * returns 1 and wakes the stream up if a buffer was taken, otherwise zero.
97 * It's designed to be called from __offer_buffer().
98 */
99int stream_buf_available(void *arg)
100{
101 struct stream *s = arg;
102
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100103 if (!s->req.buf.size && !s->req.pipe && (s->si[0].flags & SI_FL_RXBLK_BUFF) &&
Willy Tarreaub882dd82018-11-06 15:50:21 +0100104 b_alloc_margin(&s->req.buf, global.tune.reserved_bufs))
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100105 si_rx_buff_rdy(&s->si[0]);
106 else if (!s->res.buf.size && !s->res.pipe && (s->si[1].flags & SI_FL_RXBLK_BUFF) &&
Willy Tarreaub882dd82018-11-06 15:50:21 +0100107 b_alloc_margin(&s->res.buf, 0))
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100108 si_rx_buff_rdy(&s->si[1]);
Willy Tarreaub882dd82018-11-06 15:50:21 +0100109 else
110 return 0;
111
112 task_wakeup(s->task, TASK_WOKEN_RES);
113 return 1;
114
115}
116
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200117/* This function is called from the session handler which detects the end of
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200118 * handshake, in order to complete initialization of a valid stream. It must be
Joseph Herlant4cc8d0d2018-11-15 09:14:14 -0800119 * called with a completely initialized session. It returns the pointer to
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200120 * the newly created stream, or NULL in case of fatal error. The client-facing
Willy Tarreau87787ac2017-08-28 16:22:54 +0200121 * end point is assigned to <origin>, which must be valid. The stream's task
122 * is configured with a nice value inherited from the listener's nice if any.
123 * The task's context is set to the new stream, and its function is set to
124 * process_stream(). Target and analysers are null.
Willy Tarreau2542b532012-08-31 16:01:23 +0200125 */
Willy Tarreau87787ac2017-08-28 16:22:54 +0200126struct stream *stream_new(struct session *sess, enum obj_type *origin)
Willy Tarreau2542b532012-08-31 16:01:23 +0200127{
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200128 struct stream *s;
Willy Tarreau87787ac2017-08-28 16:22:54 +0200129 struct task *t;
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200130 struct conn_stream *cs = objt_cs(origin);
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200131 struct appctx *appctx = objt_appctx(origin);
Christopher Fauletb3484d62018-11-29 15:19:05 +0100132 const struct cs_info *csinfo;
Willy Tarreau2542b532012-08-31 16:01:23 +0200133
Willy Tarreaubafbe012017-11-24 17:34:44 +0100134 if (unlikely((s = pool_alloc(pool_head_stream)) == NULL))
Willy Tarreau87787ac2017-08-28 16:22:54 +0200135 goto out_fail_alloc;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200136
137 /* minimum stream initialization required for an embryonic stream is
138 * fairly low. We need very little to execute L4 ACLs, then we need a
139 * task to make the client-side connection live on its own.
140 * - flags
141 * - stick-entry tracking
142 */
143 s->flags = 0;
Willy Tarreaufb9f5842015-04-05 18:19:23 +0200144 s->logs.logwait = sess->fe->to_log;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200145 s->logs.level = 0;
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200146 tv_zero(&s->logs.tv_request);
147 s->logs.t_queue = -1;
148 s->logs.t_connect = -1;
149 s->logs.t_data = -1;
150 s->logs.t_close = 0;
151 s->logs.bytes_in = s->logs.bytes_out = 0;
Patrick Hemmerffe5e8c2018-05-11 12:52:31 -0400152 s->logs.prx_queue_pos = 0; /* we get the number of pending conns before us */
153 s->logs.srv_queue_pos = 0; /* we will get this number soon */
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200154
Christopher Fauletb3484d62018-11-29 15:19:05 +0100155 csinfo = si_get_cs_info(cs);
156 if (csinfo) {
157 s->logs.accept_date = csinfo->create_date;
158 s->logs.tv_accept = csinfo->tv_create;
159 s->logs.t_handshake = csinfo->t_handshake;
160 s->logs.t_idle = csinfo->t_idle;
161 }
162 else {
163 s->logs.accept_date = sess->accept_date;
164 s->logs.tv_accept = sess->tv_accept;
165 s->logs.t_handshake = sess->t_handshake;
166 s->logs.t_idle = -1;
167 }
168
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200169 /* default logging function */
170 s->do_log = strm_log;
171
172 /* default error reporting function, may be changed by analysers */
173 s->srv_error = default_srv_error;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200174
175 /* Initialise the current rule list pointer to NULL. We are sure that
176 * any rulelist match the NULL pointer.
177 */
178 s->current_rule_list = NULL;
Remi Gacogne7fb9de22015-07-22 17:10:58 +0200179 s->current_rule = NULL;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200180
Willy Tarreaua68f7622015-09-21 17:48:24 +0200181 /* Copy SC counters for the stream. We don't touch refcounts because
182 * any reference we have is inherited from the session. Since the stream
183 * doesn't exist without the session, the session's existence guarantees
184 * we don't lose the entry. During the store operation, the stream won't
185 * touch these ones.
Thierry FOURNIER827752e2015-08-18 11:34:18 +0200186 */
Thierry FOURNIERc8fdb982015-08-16 12:03:39 +0200187 memcpy(s->stkctr, sess->stkctr, sizeof(s->stkctr));
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200188
189 s->sess = sess;
190 s->si[0].flags = SI_FL_NONE;
191 s->si[1].flags = SI_FL_ISBACK;
192
Willy Tarreau90a7c032018-09-05 16:21:29 +0200193 s->uniq_id = HA_ATOMIC_XADD(&global.req_count, 1);
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200194
Willy Tarreau87b09662015-04-03 00:22:06 +0200195 /* OK, we're keeping the stream, so let's properly initialize the stream */
Willy Tarreau2542b532012-08-31 16:01:23 +0200196 LIST_INIT(&s->back_refs);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100197
198 LIST_INIT(&s->buffer_wait.list);
199 s->buffer_wait.target = s;
Willy Tarreaub882dd82018-11-06 15:50:21 +0100200 s->buffer_wait.wakeup_cb = stream_buf_available;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200201
William Lallemandcf62f7e2018-10-26 14:47:40 +0200202 s->pcli_next_pid = 0;
William Lallemandebf61802018-12-11 16:10:57 +0100203 s->pcli_flags = 0;
Willy Tarreau2542b532012-08-31 16:01:23 +0200204 s->unique_id = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200205
Emeric Brunc60def82017-09-27 14:59:38 +0200206 if ((t = task_new(tid_bit)) == NULL)
Willy Tarreau87787ac2017-08-28 16:22:54 +0200207 goto out_fail_alloc;
208
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200209 s->task = t;
Christopher Faulet9d810ca2016-12-08 22:33:52 +0100210 s->pending_events = 0;
Willy Tarreaud1769b82015-04-06 00:25:48 +0200211 t->process = process_stream;
Willy Tarreau2542b532012-08-31 16:01:23 +0200212 t->context = s;
213 t->expire = TICK_ETERNITY;
Willy Tarreau87787ac2017-08-28 16:22:54 +0200214 if (sess->listener)
215 t->nice = sess->listener->nice;
Willy Tarreau2542b532012-08-31 16:01:23 +0200216
Willy Tarreau87b09662015-04-03 00:22:06 +0200217 /* Note: initially, the stream's backend points to the frontend.
Willy Tarreau2542b532012-08-31 16:01:23 +0200218 * This changes later when switching rules are executed or
219 * when the default backend is assigned.
220 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200221 s->be = sess->fe;
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200222 s->req.buf = BUF_NULL;
223 s->res.buf = BUF_NULL;
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200224 s->req_cap = NULL;
225 s->res_cap = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200226
Willy Tarreauebcd4842015-06-19 11:59:02 +0200227 /* Initialise all the variables contexts even if not used.
228 * This permits to prune these contexts without errors.
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200229 */
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200230 vars_init(&s->vars_txn, SCOPE_TXN);
231 vars_init(&s->vars_reqres, SCOPE_REQ);
232
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200233 /* this part should be common with other protocols */
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200234 if (si_reset(&s->si[0]) < 0)
235 goto out_fail_alloc;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200236 si_set_state(&s->si[0], SI_ST_EST);
Hongbo Longe39683c2017-03-10 18:41:51 +0100237 s->si[0].hcto = sess->fe->timeout.clientfin;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200238
Willy Tarreau984fca92017-12-20 16:31:43 +0100239 if (cs && cs->conn->mux && cs->conn->mux->flags & MX_FL_CLEAN_ABRT)
240 s->si[0].flags |= SI_FL_CLEAN_ABRT;
241
Willy Tarreau1f52bb22015-04-04 14:28:46 +0200242 /* attach the incoming connection to the stream interface now. */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200243 if (cs)
244 si_attach_cs(&s->si[0], cs);
Willy Tarreau470280e2015-04-05 01:33:13 +0200245 else if (appctx)
246 si_attach_appctx(&s->si[0], appctx);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200247
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200248 if (likely(sess->fe->options2 & PR_O2_INDEPSTR))
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200249 s->si[0].flags |= SI_FL_INDEP_STR;
250
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200251 /* pre-initialize the other side's stream interface to an INIT state. The
252 * callbacks will be initialized before attempting to connect.
253 */
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200254 if (si_reset(&s->si[1]) < 0)
255 goto out_fail_alloc_si1;
Hongbo Longe39683c2017-03-10 18:41:51 +0100256 s->si[1].hcto = TICK_ETERNITY;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200257
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200258 if (likely(sess->fe->options2 & PR_O2_INDEPSTR))
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200259 s->si[1].flags |= SI_FL_INDEP_STR;
260
Willy Tarreau87b09662015-04-03 00:22:06 +0200261 stream_init_srv_conn(s);
Willy Tarreau9b82d942016-12-05 00:26:31 +0100262 s->target = sess->listener ? sess->listener->default_target : NULL;
263
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200264 s->pend_pos = NULL;
Patrick Hemmer268a7072018-05-11 12:52:31 -0400265 s->priority_class = 0;
266 s->priority_offset = 0;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200267
268 /* init store persistence */
269 s->store_count = 0;
270
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100271 channel_init(&s->req);
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100272 s->req.flags |= CF_READ_ATTACHED; /* the producer is already connected */
Willy Tarreau9b82d942016-12-05 00:26:31 +0100273 s->req.analysers = sess->listener ? sess->listener->analysers : 0;
Willy Tarreaue223e3b2017-11-18 15:39:10 +0100274
275 if (!sess->fe->fe_req_ana) {
276 channel_auto_connect(&s->req); /* don't wait to establish connection */
277 channel_auto_close(&s->req); /* let the producer forward close requests */
278 }
Willy Tarreauc8815ef2015-04-05 18:15:59 +0200279
280 s->req.rto = sess->fe->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100281 s->req.wto = TICK_ETERNITY;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100282 s->req.rex = TICK_ETERNITY;
283 s->req.wex = TICK_ETERNITY;
284 s->req.analyse_exp = TICK_ETERNITY;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200285
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100286 channel_init(&s->res);
Willy Tarreauef573c02014-11-28 14:17:09 +0100287 s->res.flags |= CF_ISRESP;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100288 s->res.analysers = 0;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200289
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200290 if (sess->fe->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100291 s->req.flags |= CF_NEVER_WAIT;
292 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200293 }
294
Willy Tarreauc8815ef2015-04-05 18:15:59 +0200295 s->res.wto = sess->fe->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100296 s->res.rto = TICK_ETERNITY;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100297 s->res.rex = TICK_ETERNITY;
298 s->res.wex = TICK_ETERNITY;
299 s->res.analyse_exp = TICK_ETERNITY;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200300
Willy Tarreaueee5b512015-04-03 23:46:31 +0200301 s->txn = NULL;
Thierry FOURNIER2c8b54e2016-12-17 12:45:32 +0100302 s->hlua = NULL;
Thierry FOURNIER65f34c62015-02-16 20:11:43 +0100303
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100304 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200305 LIST_ADDQ(&streams, &s->list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100306 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200307
Christopher Faulet92d36382015-11-05 13:35:03 +0100308 if (flt_stream_init(s) < 0 || flt_stream_start(s) < 0)
Christopher Fauletd7c91962015-04-30 11:48:27 +0200309 goto out_fail_accept;
310
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200311 /* finish initialization of the accepted file descriptor */
Olivier Houchard53216e72018-10-10 15:46:36 +0200312 if (appctx)
Willy Tarreau0cd3bd62018-11-06 18:46:37 +0100313 si_want_get(&s->si[0]);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200314
Willy Tarreaufb9f5842015-04-05 18:19:23 +0200315 if (sess->fe->accept && sess->fe->accept(s) < 0)
Willy Tarreauc5a7ff42015-04-05 11:52:08 +0200316 goto out_fail_accept;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200317
318 /* it is important not to call the wakeup function directly but to
319 * pass through task_wakeup(), because this one knows how to apply
Emeric Brun5f77fef2017-05-29 15:26:51 +0200320 * priorities to tasks. Using multi thread we must be sure that
321 * stream is fully initialized before calling task_wakeup. So
322 * the caller must handle the task_wakeup
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200323 */
Willy Tarreau02d86382015-04-05 12:00:52 +0200324 return s;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200325
326 /* Error unrolling */
Willy Tarreauc5a7ff42015-04-05 11:52:08 +0200327 out_fail_accept:
Christopher Faulet92d36382015-11-05 13:35:03 +0100328 flt_stream_release(s, 0);
Willy Tarreau87787ac2017-08-28 16:22:54 +0200329 task_free(t);
Olivier Houchardfa8aa862018-10-10 18:25:41 +0200330 tasklet_free(s->si[1].wait_event.task);
Willy Tarreaue5f229e2018-10-15 11:08:55 +0200331 LIST_DEL(&s->list);
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200332out_fail_alloc_si1:
Olivier Houchardfa8aa862018-10-10 18:25:41 +0200333 tasklet_free(s->si[0].wait_event.task);
Willy Tarreau87787ac2017-08-28 16:22:54 +0200334 out_fail_alloc:
Willy Tarreaubafbe012017-11-24 17:34:44 +0100335 pool_free(pool_head_stream, s);
Willy Tarreau02d86382015-04-05 12:00:52 +0200336 return NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200337}
338
Willy Tarreaubaaee002006-06-26 02:48:02 +0200339/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200340 * frees the context associated to a stream. It must have been removed first.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200341 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200342static void stream_free(struct stream *s)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200343{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200344 struct session *sess = strm_sess(s);
345 struct proxy *fe = sess->fe;
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100346 struct bref *bref, *back;
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200347 struct conn_stream *cli_cs = objt_cs(s->si[0].end);
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100348 int must_free_sess;
Willy Tarreaua4cda672010-06-06 18:28:49 +0200349 int i;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100350
Willy Tarreaud0ad4a82018-07-25 11:13:53 +0200351 pendconn_free(s);
Willy Tarreau922a8062008-12-04 09:33:58 +0100352
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100353 if (objt_server(s->target)) { /* there may be requests left pending in queue */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200354 if (s->flags & SF_CURR_SESS) {
355 s->flags &= ~SF_CURR_SESS;
Willy Tarreaub54c40a2018-12-02 19:28:41 +0100356 HA_ATOMIC_SUB(&__objt_server(s->target)->cur_sess, 1);
Willy Tarreau1e62de62008-11-11 20:20:02 +0100357 }
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100358 if (may_dequeue_tasks(objt_server(s->target), s->be))
359 process_srv_queue(objt_server(s->target));
Willy Tarreau1e62de62008-11-11 20:20:02 +0100360 }
Willy Tarreau922a8062008-12-04 09:33:58 +0100361
Willy Tarreau7c669d72008-06-20 15:04:11 +0200362 if (unlikely(s->srv_conn)) {
Willy Tarreau87b09662015-04-03 00:22:06 +0200363 /* the stream still has a reserved slot on a server, but
Willy Tarreau7c669d72008-06-20 15:04:11 +0200364 * it should normally be only the same as the one above,
365 * so this should not happen in fact.
366 */
367 sess_change_server(s, NULL);
368 }
369
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100370 if (s->req.pipe)
371 put_pipe(s->req.pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100372
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100373 if (s->res.pipe)
374 put_pipe(s->res.pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100375
Willy Tarreaubf883e02014-11-25 21:10:35 +0100376 /* We may still be present in the buffer wait queue */
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100377 if (!LIST_ISEMPTY(&s->buffer_wait.list)) {
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100378 HA_SPIN_LOCK(BUF_WQ_LOCK, &buffer_wq_lock);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100379 LIST_DEL(&s->buffer_wait.list);
380 LIST_INIT(&s->buffer_wait.list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100381 HA_SPIN_UNLOCK(BUF_WQ_LOCK, &buffer_wq_lock);
Willy Tarreaubf883e02014-11-25 21:10:35 +0100382 }
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200383 if (s->req.buf.size || s->res.buf.size) {
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100384 b_drop(&s->req.buf);
385 b_drop(&s->res.buf);
Olivier Houchard673867c2018-05-25 16:58:52 +0200386 offer_buffers(NULL, tasks_run_queue);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100387 }
Willy Tarreau9b28e032012-10-12 23:49:43 +0200388
Olivier Houchard32211a12019-02-01 18:10:46 +0100389 pool_free(pool_head_uniqueid, s->unique_id);
Willy Tarreau09c4bab2019-02-10 18:49:37 +0100390 s->unique_id = NULL;
Olivier Houchard32211a12019-02-01 18:10:46 +0100391
Thierry FOURNIER2c8b54e2016-12-17 12:45:32 +0100392 hlua_ctx_destroy(s->hlua);
393 s->hlua = NULL;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200394 if (s->txn)
395 http_end_txn(s);
Willy Tarreau46023632010-01-07 22:51:47 +0100396
Willy Tarreau1e954912012-10-12 17:50:05 +0200397 /* ensure the client-side transport layer is destroyed */
Willy Tarreau32560732017-10-08 11:33:44 +0200398 if (cli_cs)
399 cs_close(cli_cs);
Willy Tarreau1e954912012-10-12 17:50:05 +0200400
Willy Tarreaua4cda672010-06-06 18:28:49 +0200401 for (i = 0; i < s->store_count; i++) {
402 if (!s->store[i].ts)
403 continue;
404 stksess_free(s->store[i].table, s->store[i].ts);
405 s->store[i].ts = NULL;
406 }
407
Willy Tarreaueee5b512015-04-03 23:46:31 +0200408 if (s->txn) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100409 pool_free(pool_head_hdr_idx, s->txn->hdr_idx.v);
410 pool_free(pool_head_http_txn, s->txn);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200411 s->txn = NULL;
412 }
413
Christopher Fauletd7c91962015-04-30 11:48:27 +0200414 flt_stream_stop(s);
Christopher Faulet92d36382015-11-05 13:35:03 +0100415 flt_stream_release(s, 0);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200416
Willy Tarreau92fb9832007-10-16 17:34:28 +0200417 if (fe) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100418 pool_free(fe->rsp_cap_pool, s->res_cap);
419 pool_free(fe->req_cap_pool, s->req_cap);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200420 }
Willy Tarreau0937bc42009-12-22 15:03:09 +0100421
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200422 /* Cleanup all variable contexts. */
Willy Tarreaucda7f3f2018-10-28 13:44:36 +0100423 if (!LIST_ISEMPTY(&s->vars_txn.head))
424 vars_prune(&s->vars_txn, s->sess, s);
425 if (!LIST_ISEMPTY(&s->vars_reqres.head))
426 vars_prune(&s->vars_reqres, s->sess, s);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200427
Willy Tarreau87b09662015-04-03 00:22:06 +0200428 stream_store_counters(s);
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +0200429
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100430 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100431 list_for_each_entry_safe(bref, back, &s->back_refs, users) {
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100432 /* we have to unlink all watchers. We must not relink them if
Willy Tarreau87b09662015-04-03 00:22:06 +0200433 * this stream was the last one in the list.
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100434 */
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100435 LIST_DEL(&bref->users);
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100436 LIST_INIT(&bref->users);
Willy Tarreau87b09662015-04-03 00:22:06 +0200437 if (s->list.n != &streams)
438 LIST_ADDQ(&LIST_ELEM(s->list.n, struct stream *, list)->back_refs, &bref->users);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100439 bref->ref = s->list.n;
440 }
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100441 LIST_DEL(&s->list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100442 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200443
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100444 /* applets do not release session yet */
445 must_free_sess = objt_appctx(sess->origin) && sess->origin == s->si[0].end;
446
Olivier Houchard4fdec7a2018-10-11 17:09:14 +0200447
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200448 si_release_endpoint(&s->si[1]);
449 si_release_endpoint(&s->si[0]);
Willy Tarreaufeb76402015-04-03 14:10:06 +0200450
Olivier Houchardd7bd3e32018-10-18 16:22:02 +0200451 tasklet_free(s->si[0].wait_event.task);
452 tasklet_free(s->si[1].wait_event.task);
453
Olivier Houchard25607af2018-11-23 14:50:47 +0100454 if (must_free_sess) {
455 sess->origin = NULL;
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100456 session_free(sess);
Olivier Houchard25607af2018-11-23 14:50:47 +0100457 }
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100458
Willy Tarreaubafbe012017-11-24 17:34:44 +0100459 pool_free(pool_head_stream, s);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200460
461 /* We may want to free the maximum amount of pools if the proxy is stopping */
Willy Tarreau92fb9832007-10-16 17:34:28 +0200462 if (fe && unlikely(fe->state == PR_STSTOPPED)) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100463 pool_flush(pool_head_buffer);
464 pool_flush(pool_head_http_txn);
465 pool_flush(pool_head_hdr_idx);
466 pool_flush(pool_head_requri);
467 pool_flush(pool_head_capture);
468 pool_flush(pool_head_stream);
469 pool_flush(pool_head_session);
470 pool_flush(pool_head_connection);
471 pool_flush(pool_head_pendconn);
472 pool_flush(fe->req_cap_pool);
473 pool_flush(fe->rsp_cap_pool);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200474 }
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200475}
476
Willy Tarreau656859d2014-11-25 19:46:36 +0100477
Willy Tarreau87b09662015-04-03 00:22:06 +0200478/* Allocates a work buffer for stream <s>. It is meant to be called inside
479 * process_stream(). It will only allocate the side needed for the function
Willy Tarreaubc39a5d2015-04-20 15:52:18 +0200480 * to work fine, which is the response buffer so that an error message may be
481 * built and returned. Response buffers may be allocated from the reserve, this
482 * is critical to ensure that a response may always flow and will never block a
483 * server from releasing a connection. Returns 0 in case of failure, non-zero
484 * otherwise.
Willy Tarreau656859d2014-11-25 19:46:36 +0100485 */
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100486static int stream_alloc_work_buffer(struct stream *s)
Willy Tarreau656859d2014-11-25 19:46:36 +0100487{
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100488 if (!LIST_ISEMPTY(&s->buffer_wait.list)) {
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100489 HA_SPIN_LOCK(BUF_WQ_LOCK, &buffer_wq_lock);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100490 LIST_DEL(&s->buffer_wait.list);
491 LIST_INIT(&s->buffer_wait.list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100492 HA_SPIN_UNLOCK(BUF_WQ_LOCK, &buffer_wq_lock);
Willy Tarreaubf883e02014-11-25 21:10:35 +0100493 }
Willy Tarreau656859d2014-11-25 19:46:36 +0100494
Willy Tarreaubc39a5d2015-04-20 15:52:18 +0200495 if (b_alloc_margin(&s->res.buf, 0))
Willy Tarreau656859d2014-11-25 19:46:36 +0100496 return 1;
497
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100498 HA_SPIN_LOCK(BUF_WQ_LOCK, &buffer_wq_lock);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100499 LIST_ADDQ(&buffer_wq, &s->buffer_wait.list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100500 HA_SPIN_UNLOCK(BUF_WQ_LOCK, &buffer_wq_lock);
Willy Tarreau656859d2014-11-25 19:46:36 +0100501 return 0;
502}
503
504/* releases unused buffers after processing. Typically used at the end of the
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100505 * update() functions. It will try to wake up as many tasks/applets as the
506 * number of buffers that it releases. In practice, most often streams are
507 * blocked on a single buffer, so it makes sense to try to wake two up when two
508 * buffers are released at once.
Willy Tarreau656859d2014-11-25 19:46:36 +0100509 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200510void stream_release_buffers(struct stream *s)
Willy Tarreau656859d2014-11-25 19:46:36 +0100511{
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100512 int offer = 0;
Willy Tarreau656859d2014-11-25 19:46:36 +0100513
Willy Tarreau0c7ed5d2018-07-10 09:53:31 +0200514 if (c_size(&s->req) && c_empty(&s->req)) {
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100515 offer = 1;
516 b_free(&s->req.buf);
517 }
Willy Tarreau0c7ed5d2018-07-10 09:53:31 +0200518 if (c_size(&s->res) && c_empty(&s->res)) {
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100519 offer = 1;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100520 b_free(&s->res.buf);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100521 }
Willy Tarreau656859d2014-11-25 19:46:36 +0100522
Willy Tarreaubf883e02014-11-25 21:10:35 +0100523 /* if we're certain to have at least 1 buffer available, and there is
524 * someone waiting, we can wake up a waiter and offer them.
525 */
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100526 if (offer)
Olivier Houchard673867c2018-05-25 16:58:52 +0200527 offer_buffers(s, tasks_run_queue);
Willy Tarreau656859d2014-11-25 19:46:36 +0100528}
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200529
Willy Tarreau87b09662015-04-03 00:22:06 +0200530void stream_process_counters(struct stream *s)
Willy Tarreau30e71012007-11-26 20:15:35 +0100531{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200532 struct session *sess = s->sess;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100533 unsigned long long bytes;
Emeric Brun57056f02015-06-15 18:29:57 +0200534 void *ptr1,*ptr2;
Emeric Brun819fc6f2017-06-13 19:37:32 +0200535 struct stksess *ts;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100536 int i;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100537
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100538 bytes = s->req.total - s->logs.bytes_in;
539 s->logs.bytes_in = s->req.total;
540 if (bytes) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200541 HA_ATOMIC_ADD(&sess->fe->fe_counters.bytes_in, bytes);
542 HA_ATOMIC_ADD(&s->be->be_counters.bytes_in, bytes);
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100543
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100544 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200545 HA_ATOMIC_ADD(&objt_server(s->target)->counters.bytes_in, bytes);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200546
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200547 if (sess->listener && sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200548 HA_ATOMIC_ADD(&sess->listener->counters->bytes_in, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200549
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100550 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200551 struct stkctr *stkctr = &s->stkctr[i];
552
Emeric Brun819fc6f2017-06-13 19:37:32 +0200553 ts = stkctr_entry(stkctr);
554 if (!ts) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200555 stkctr = &sess->stkctr[i];
Emeric Brun819fc6f2017-06-13 19:37:32 +0200556 ts = stkctr_entry(stkctr);
557 if (!ts)
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200558 continue;
559 }
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200560
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100561 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun819fc6f2017-06-13 19:37:32 +0200562 ptr1 = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_BYTES_IN_CNT);
Emeric Brun57056f02015-06-15 18:29:57 +0200563 if (ptr1)
564 stktable_data_cast(ptr1, bytes_in_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200565
Emeric Brun819fc6f2017-06-13 19:37:32 +0200566 ptr2 = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_BYTES_IN_RATE);
Emeric Brun57056f02015-06-15 18:29:57 +0200567 if (ptr2)
568 update_freq_ctr_period(&stktable_data_cast(ptr2, bytes_in_rate),
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200569 stkctr->table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u, bytes);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100570 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun57056f02015-06-15 18:29:57 +0200571
572 /* If data was modified, we need to touch to re-schedule sync */
573 if (ptr1 || ptr2)
Emeric Brun819fc6f2017-06-13 19:37:32 +0200574 stktable_touch_local(stkctr->table, ts, 0);
Willy Tarreau30e71012007-11-26 20:15:35 +0100575 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100576 }
577
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100578 bytes = s->res.total - s->logs.bytes_out;
579 s->logs.bytes_out = s->res.total;
580 if (bytes) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200581 HA_ATOMIC_ADD(&sess->fe->fe_counters.bytes_out, bytes);
582 HA_ATOMIC_ADD(&s->be->be_counters.bytes_out, bytes);
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100583
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100584 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200585 HA_ATOMIC_ADD(&objt_server(s->target)->counters.bytes_out, bytes);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200586
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200587 if (sess->listener && sess->listener->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +0200588 HA_ATOMIC_ADD(&sess->listener->counters->bytes_out, bytes);
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200589
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100590 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200591 struct stkctr *stkctr = &s->stkctr[i];
592
Emeric Brun819fc6f2017-06-13 19:37:32 +0200593 ts = stkctr_entry(stkctr);
594 if (!ts) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200595 stkctr = &sess->stkctr[i];
Emeric Brun819fc6f2017-06-13 19:37:32 +0200596 ts = stkctr_entry(stkctr);
597 if (!ts)
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200598 continue;
599 }
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200600
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100601 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun819fc6f2017-06-13 19:37:32 +0200602 ptr1 = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_BYTES_OUT_CNT);
Emeric Brun57056f02015-06-15 18:29:57 +0200603 if (ptr1)
604 stktable_data_cast(ptr1, bytes_out_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200605
Emeric Brun819fc6f2017-06-13 19:37:32 +0200606 ptr2 = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_BYTES_OUT_RATE);
Emeric Brun57056f02015-06-15 18:29:57 +0200607 if (ptr2)
608 update_freq_ctr_period(&stktable_data_cast(ptr2, bytes_out_rate),
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200609 stkctr->table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u, bytes);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100610 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun57056f02015-06-15 18:29:57 +0200611
612 /* If data was modified, we need to touch to re-schedule sync */
613 if (ptr1 || ptr2)
Emeric Brun819fc6f2017-06-13 19:37:32 +0200614 stktable_touch_local(stkctr->table, stkctr_entry(stkctr), 0);
Willy Tarreau30e71012007-11-26 20:15:35 +0100615 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100616 }
617}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200618
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100619/* This function is called with (si->state == SI_ST_CON) meaning that a
620 * connection was attempted and that the file descriptor is already allocated.
621 * We must check for establishment, error and abort. Possible output states
622 * are SI_ST_EST (established), SI_ST_CER (error), SI_ST_DIS (abort), and
623 * SI_ST_CON (no change). The function returns 0 if it switches to SI_ST_CER,
Willy Tarreau87b09662015-04-03 00:22:06 +0200624 * otherwise 1. This only works with connection-based streams.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100625 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200626static int sess_update_st_con_tcp(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100627{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100628 struct stream_interface *si = &s->si[1];
629 struct channel *req = &s->req;
630 struct channel *rep = &s->res;
Olivier Houchard14547b22018-11-29 18:01:46 +0100631 struct conn_stream *srv_cs = objt_cs(si->end);
Willy Tarreaubf66bd12019-01-23 15:15:09 +0100632 struct connection *conn = srv_cs ? srv_cs->conn : objt_conn(si->end);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100633
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100634 /* If we got an error, or if nothing happened and the connection timed
635 * out, we must give up. The CER state handler will take care of retry
636 * attempts and error reports.
637 */
638 if (unlikely(si->flags & (SI_FL_EXP|SI_FL_ERR))) {
Bin Wang95fad5b2017-09-15 14:56:40 +0800639 if (unlikely(req->flags & CF_WROTE_DATA)) {
Willy Tarreaue3224e82012-10-29 22:41:31 +0100640 /* Some data were sent past the connection establishment,
641 * so we need to pretend we're established to log correctly
642 * and let later states handle the failure.
643 */
Willy Tarreaue3224e82012-10-29 22:41:31 +0100644 si->state = SI_ST_EST;
645 si->err_type = SI_ET_DATA_ERR;
Willy Tarreau28e581b2019-01-31 18:58:06 +0100646 req->flags |= CF_WRITE_ERROR;
647 rep->flags |= CF_READ_ERROR;
Willy Tarreaue3224e82012-10-29 22:41:31 +0100648 return 1;
649 }
Willy Tarreau127334e2009-03-28 10:47:26 +0100650 si->exp = TICK_ETERNITY;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100651 si->state = SI_ST_CER;
Willy Tarreau0ede5a32012-12-08 08:44:02 +0100652
Willy Tarreaubf66bd12019-01-23 15:15:09 +0100653 if (!(s->flags & SF_SRV_REUSED) && conn) {
Olivier Houchard14547b22018-11-29 18:01:46 +0100654 conn_stop_tracking(conn);
655 conn_full_close(conn);
Olivier Houchard14547b22018-11-29 18:01:46 +0100656 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100657
658 if (si->err_type)
659 return 0;
660
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100661 if (si->flags & SI_FL_ERR)
662 si->err_type = SI_ET_CONN_ERR;
663 else
664 si->err_type = SI_ET_CONN_TO;
665 return 0;
666 }
667
668 /* OK, maybe we want to abort */
Bin Wang95fad5b2017-09-15 14:56:40 +0800669 if (!(req->flags & CF_WROTE_DATA) &&
Willy Tarreaua7a7ebc2012-12-30 00:50:35 +0100670 unlikely((rep->flags & CF_SHUTW) ||
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200671 ((req->flags & CF_SHUTW_NOW) && /* FIXME: this should not prevent a connection from establishing */
Willy Tarreauede3d882018-10-24 17:17:56 +0200672 ((!(req->flags & CF_WRITE_ACTIVITY) && channel_is_empty(req)) ||
Willy Tarreau7aa15b02017-12-20 16:56:50 +0100673 ((s->be->options & PR_O_ABRT_CLOSE) && !(s->si[0].flags & SI_FL_CLEAN_ABRT)))))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100674 /* give up */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200675 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100676 si->err_type |= SI_ET_CONN_ABRT;
Willy Tarreau84455332009-03-15 22:34:05 +0100677 if (s->srv_error)
678 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100679 return 1;
680 }
681
682 /* we need to wait a bit more if there was no activity either */
Christopher Faulet3b88b8d2018-10-26 17:36:03 +0200683 if (!(req->flags & CF_WRITE_ACTIVITY))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100684 return 1;
685
686 /* OK, this means that a connection succeeded. The caller will be
687 * responsible for handling the transition from CON to EST.
688 */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100689 si->state = SI_ST_EST;
690 si->err_type = SI_ET_NONE;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100691 return 1;
692}
693
694/* This function is called with (si->state == SI_ST_CER) meaning that a
695 * previous connection attempt has failed and that the file descriptor
696 * has already been released. Possible causes include asynchronous error
697 * notification and time out. Possible output states are SI_ST_CLO when
698 * retries are exhausted, SI_ST_TAR when a delay is wanted before a new
699 * connection attempt, SI_ST_ASS when it's wise to retry on the same server,
700 * and SI_ST_REQ when an immediate redispatch is wanted. The buffers are
701 * marked as in error state. It returns 0.
702 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200703static int sess_update_st_cer(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100704{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100705 struct stream_interface *si = &s->si[1];
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200706 struct conn_stream *cs = objt_cs(si->end);
707 struct connection *conn = cs_conn(cs);
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100708
Willy Tarreau87b09662015-04-03 00:22:06 +0200709 /* we probably have to release last stream from the server */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100710 if (objt_server(s->target)) {
711 health_adjust(objt_server(s->target), HANA_STATUS_L4_ERR);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100712
Willy Tarreaue7dff022015-04-03 01:14:29 +0200713 if (s->flags & SF_CURR_SESS) {
714 s->flags &= ~SF_CURR_SESS;
Willy Tarreaub54c40a2018-12-02 19:28:41 +0100715 HA_ATOMIC_SUB(&__objt_server(s->target)->cur_sess, 1);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100716 }
Willy Tarreau46d5b082017-07-26 20:13:37 +0200717
718 if ((si->flags & SI_FL_ERR) &&
719 conn && conn->err_code == CO_ER_SSL_MISMATCH_SNI) {
720 /* We tried to connect to a server which is configured
721 * with "verify required" and which doesn't have the
722 * "verifyhost" directive. The server presented a wrong
723 * certificate (a certificate for an unexpected name),
724 * which implies that we have used SNI in the handshake,
725 * and that the server doesn't have the associated cert
726 * and presented a default one.
727 *
728 * This is a serious enough issue not to retry. It's
729 * especially important because this wrong name might
730 * either be the result of a configuration error, and
731 * retrying will only hammer the server, or is caused
732 * by the use of a wrong SNI value, most likely
733 * provided by the client and we don't want to let the
734 * client provoke retries.
735 */
736 si->conn_retries = 0;
737 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100738 }
739
740 /* ensure that we have enough retries left */
Willy Tarreauee28de02010-06-01 09:51:00 +0200741 si->conn_retries--;
742 if (si->conn_retries < 0) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100743 if (!si->err_type) {
744 si->err_type = SI_ET_CONN_ERR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100745 }
746
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100747 if (objt_server(s->target))
Christopher Faulet29f77e82017-06-08 14:04:45 +0200748 HA_ATOMIC_ADD(&objt_server(s->target)->counters.failed_conns, 1);
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200749 HA_ATOMIC_ADD(&s->be->be_counters.failed_conns, 1);
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100750 sess_change_server(s, NULL);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100751 if (may_dequeue_tasks(objt_server(s->target), s->be))
752 process_srv_queue(objt_server(s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100753
754 /* shutw is enough so stop a connecting socket */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200755 si_shutw(si);
Willy Tarreau103197d2014-11-28 15:26:12 +0100756 s->req.flags |= CF_WRITE_ERROR;
757 s->res.flags |= CF_READ_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100758
759 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100760 if (s->srv_error)
761 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100762 return 0;
763 }
764
765 /* If the "redispatch" option is set on the backend, we are allowed to
Joseph Lynch726ab712015-05-11 23:25:34 -0700766 * retry on another server. By default this redispatch occurs on the
767 * last retry, but if configured we allow redispatches to occur on
768 * configurable intervals, e.g. on every retry. In order to achieve this,
Willy Tarreau87b09662015-04-03 00:22:06 +0200769 * we must mark the stream unassigned, and eventually clear the DIRECT
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100770 * bit to ignore any persistence cookie. We won't count a retry nor a
771 * redispatch yet, because this will depend on what server is selected.
Willy Tarreau33a14e52014-06-13 17:49:40 +0200772 * If the connection is not persistent, the balancing algorithm is not
773 * determinist (round robin) and there is more than one active server,
774 * we accept to perform an immediate redispatch without waiting since
775 * we don't care about this particular server.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100776 */
Willy Tarreau33a14e52014-06-13 17:49:40 +0200777 if (objt_server(s->target) &&
Joseph Lynch726ab712015-05-11 23:25:34 -0700778 (s->be->options & PR_O_REDISP) && !(s->flags & SF_FORCE_PRST) &&
Emeric Brun52a91d32017-08-31 14:41:55 +0200779 ((__objt_server(s->target)->cur_state < SRV_ST_RUNNING) ||
Willy Tarreau49008c12016-01-13 07:58:44 +0100780 (((s->be->redispatch_after > 0) &&
Joseph Lynch726ab712015-05-11 23:25:34 -0700781 ((s->be->conn_retries - si->conn_retries) %
782 s->be->redispatch_after == 0)) ||
783 ((s->be->redispatch_after < 0) &&
784 ((s->be->conn_retries - si->conn_retries) %
785 (s->be->conn_retries + 1 + s->be->redispatch_after) == 0))) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200786 (!(s->flags & SF_DIRECT) && s->be->srv_act > 1 &&
Joseph Lynch726ab712015-05-11 23:25:34 -0700787 ((s->be->lbprm.algo & BE_LB_KIND) == BE_LB_KIND_RR)))) {
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100788 sess_change_server(s, NULL);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100789 if (may_dequeue_tasks(objt_server(s->target), s->be))
790 process_srv_queue(objt_server(s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100791
Willy Tarreaue7dff022015-04-03 01:14:29 +0200792 s->flags &= ~(SF_DIRECT | SF_ASSIGNED | SF_ADDR_SET);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100793 si->state = SI_ST_REQ;
794 } else {
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100795 if (objt_server(s->target))
Willy Tarreau1ef724e2019-02-12 10:59:32 +0100796 HA_ATOMIC_ADD(&__objt_server(s->target)->counters.retries, 1);
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200797 HA_ATOMIC_ADD(&s->be->be_counters.retries, 1);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100798 si->state = SI_ST_ASS;
799 }
800
801 if (si->flags & SI_FL_ERR) {
802 /* The error was an asynchronous connection error, and we will
803 * likely have to retry connecting to the same server, most
804 * likely leading to the same result. To avoid this, we wait
Willy Tarreauf7a259d2019-01-23 16:29:53 +0100805 * MIN(one second, connect timeout) before retrying. We don't
806 * do it when the failure happened on a reused connection
807 * though.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100808 */
809
Willy Tarreaub0290662014-06-13 17:04:44 +0200810 int delay = 1000;
811
812 if (s->be->timeout.connect && s->be->timeout.connect < delay)
813 delay = s->be->timeout.connect;
814
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100815 if (!si->err_type)
816 si->err_type = SI_ET_CONN_ERR;
817
Willy Tarreaudb6d0122014-06-13 17:40:15 +0200818 /* only wait when we're retrying on the same server */
Willy Tarreauf7a259d2019-01-23 16:29:53 +0100819 if ((si->state == SI_ST_ASS ||
820 (s->be->lbprm.algo & BE_LB_KIND) != BE_LB_KIND_RR ||
821 (s->be->srv_act <= 1)) && !(s->flags & SF_SRV_REUSED)) {
Willy Tarreaudb6d0122014-06-13 17:40:15 +0200822 si->state = SI_ST_TAR;
823 si->exp = tick_add(now_ms, MS_TO_TICKS(delay));
824 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100825 return 0;
826 }
827 return 0;
828}
829
830/*
831 * This function handles the transition between the SI_ST_CON state and the
Willy Tarreau85e7d002010-05-31 11:57:51 +0200832 * SI_ST_EST state. It must only be called after switching from SI_ST_CON (or
Willy Tarreau26d8c592012-05-07 18:12:14 +0200833 * SI_ST_INI) to SI_ST_EST, but only when a ->proto is defined.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100834 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200835static void sess_establish(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100836{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100837 struct stream_interface *si = &s->si[1];
838 struct channel *req = &s->req;
839 struct channel *rep = &s->res;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100840
Willy Tarreau0e37f1c2013-12-31 23:06:46 +0100841 /* First, centralize the timers information */
842 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
843 si->exp = TICK_ETERNITY;
844
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100845 if (objt_server(s->target))
846 health_adjust(objt_server(s->target), HANA_STATUS_L4_OK);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100847
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100848 if (s->be->mode == PR_MODE_TCP) { /* let's allow immediate data connection in this case */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100849 /* if the user wants to log as soon as possible, without counting
850 * bytes from the server, then this is the right moment. */
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200851 if (!LIST_ISEMPTY(&strm_fe(s)->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau66425e32018-07-25 06:55:12 +0200852 /* note: no pend_pos here, session is established */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100853 s->logs.t_close = s->logs.t_connect; /* to get a valid end date */
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100854 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100855 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100856 }
857 else {
Willy Tarreaud81ca042013-12-31 22:33:13 +0100858 rep->flags |= CF_READ_DONTWAIT; /* a single read is enough to get response headers */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100859 }
860
Willy Tarreau0007d0a2018-12-11 18:01:38 +0100861 rep->analysers |= strm_fe(s)->fe_rsp_ana | s->be->be_rsp_ana;
Christopher Faulet309c6412015-12-02 09:57:32 +0100862
Willy Tarreau0007d0a2018-12-11 18:01:38 +0100863 /* Be sure to filter response headers if the backend is an HTTP proxy
864 * and if there are filters attached to the stream. */
865 if (s->be->mode == PR_MODE_HTTP && HAS_FILTERS(s))
866 rep->analysers |= AN_RES_FLT_HTTP_HDRS;
Christopher Faulet309c6412015-12-02 09:57:32 +0100867
Willy Tarreau8bb2ffb2018-11-14 17:54:13 +0100868 si_rx_endp_more(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200869 rep->flags |= CF_READ_ATTACHED; /* producer is now attached */
Willy Tarreau644c1012014-04-30 18:11:11 +0200870 if (req->flags & CF_WAKE_CONNECT) {
871 req->flags |= CF_WAKE_ONCE;
872 req->flags &= ~CF_WAKE_CONNECT;
873 }
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200874 if (objt_cs(si->end)) {
Willy Tarreaud04e8582010-05-31 12:31:35 +0200875 /* real connections have timeouts */
876 req->wto = s->be->timeout.server;
877 rep->rto = s->be->timeout.server;
Olivier Houchard47e9a1a2018-11-07 17:55:19 +0100878 /* The connection is now established, try to read data from the
879 * underlying layer, and subscribe to recv events. We use a
880 * delayed recv here to give a chance to the data to flow back
881 * by the time we process other tasks.
882 */
883 si_chk_rcv(si);
Willy Tarreaud04e8582010-05-31 12:31:35 +0200884 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100885 req->wex = TICK_ETERNITY;
886}
887
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -0700888/* Check if the connection request is in such a state that it can be aborted. */
889static int check_req_may_abort(struct channel *req, struct stream *s)
890{
891 return ((req->flags & (CF_READ_ERROR)) ||
Willy Tarreaud651ba12018-01-12 10:42:12 +0100892 ((req->flags & (CF_SHUTW_NOW|CF_SHUTW)) && /* empty and client aborted */
Willy Tarreau7aa15b02017-12-20 16:56:50 +0100893 (channel_is_empty(req) ||
894 ((s->be->options & PR_O_ABRT_CLOSE) && !(s->si[0].flags & SI_FL_CLEAN_ABRT)))));
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -0700895}
896
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100897/* Update back stream interface status for input states SI_ST_ASS, SI_ST_QUE,
898 * SI_ST_TAR. Other input states are simply ignored.
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +0100899 * Possible output states are SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ, SI_ST_CON
900 * and SI_ST_EST. Flags must have previously been updated for timeouts and other
901 * conditions.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100902 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200903static void sess_update_stream_int(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100904{
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100905 struct server *srv = objt_server(s->target);
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100906 struct stream_interface *si = &s->si[1];
Willy Tarreau103197d2014-11-28 15:26:12 +0100907 struct channel *req = &s->req;
Willy Tarreau827aee92011-03-10 16:55:02 +0100908
Christopher Faulet45073512018-07-20 10:16:29 +0200909 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 +0100910 now_ms, __FUNCTION__,
911 s,
CJ Ess6eac32e2015-05-02 16:35:24 -0400912 req, &s->res,
Willy Tarreau103197d2014-11-28 15:26:12 +0100913 req->rex, s->res.wex,
914 req->flags, s->res.flags,
Christopher Faulet45073512018-07-20 10:16:29 +0200915 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 +0100916
917 if (si->state == SI_ST_ASS) {
918 /* Server assigned to connection request, we have to try to connect now */
919 int conn_err;
920
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -0700921 /* Before we try to initiate the connection, see if the
922 * request may be aborted instead.
923 */
924 if (check_req_may_abort(req, s)) {
925 si->err_type |= SI_ET_CONN_ABRT;
926 goto abort_connection;
927 }
928
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100929 conn_err = connect_server(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100930 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +0100931
Willy Tarreaue7dff022015-04-03 01:14:29 +0200932 if (conn_err == SF_ERR_NONE) {
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +0100933 /* state = SI_ST_CON or SI_ST_EST now */
Willy Tarreau827aee92011-03-10 16:55:02 +0100934 if (srv)
935 srv_inc_sess_ctr(srv);
Bhaskar Maddalaa20cb852014-02-03 16:26:46 -0500936 if (srv)
937 srv_set_sess_last(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100938 return;
939 }
940
941 /* We have received a synchronous error. We might have to
942 * abort, retry immediately or redispatch.
943 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200944 if (conn_err == SF_ERR_INTERNAL) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100945 if (!si->err_type) {
946 si->err_type = SI_ET_CONN_OTHER;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100947 }
948
Willy Tarreau827aee92011-03-10 16:55:02 +0100949 if (srv)
950 srv_inc_sess_ctr(srv);
951 if (srv)
Bhaskar Maddalaa20cb852014-02-03 16:26:46 -0500952 srv_set_sess_last(srv);
953 if (srv)
Christopher Faulet29f77e82017-06-08 14:04:45 +0200954 HA_ATOMIC_ADD(&srv->counters.failed_conns, 1);
Christopher Fauletff8abcd2017-06-02 15:33:24 +0200955 HA_ATOMIC_ADD(&s->be->be_counters.failed_conns, 1);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100956
Willy Tarreau87b09662015-04-03 00:22:06 +0200957 /* release other streams waiting for this server */
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100958 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +0100959 if (may_dequeue_tasks(srv, s->be))
960 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100961
962 /* Failed and not retryable. */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200963 si_shutr(si);
964 si_shutw(si);
Willy Tarreau103197d2014-11-28 15:26:12 +0100965 req->flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100966
967 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
968
Willy Tarreau66425e32018-07-25 06:55:12 +0200969 /* we may need to know the position in the queue for logging */
970 pendconn_cond_unlink(s->pend_pos);
971
Willy Tarreau87b09662015-04-03 00:22:06 +0200972 /* no stream was ever accounted for this server */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100973 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100974 if (s->srv_error)
975 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100976 return;
977 }
978
979 /* We are facing a retryable error, but we don't want to run a
980 * turn-around now, as the problem is likely a source port
981 * allocation problem, so we want to retry now.
982 */
983 si->state = SI_ST_CER;
984 si->flags &= ~SI_FL_ERR;
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100985 sess_update_st_cer(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100986 /* now si->state is one of SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ */
987 return;
988 }
989 else if (si->state == SI_ST_QUE) {
990 /* connection request was queued, check for any update */
Christopher Faulet5cd4bbd2018-03-14 16:18:06 +0100991 if (!pendconn_dequeue(s)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100992 /* The connection is not in the queue anymore. Either
993 * we have a server connection slot available and we
994 * go directly to the assigned state, or we need to
995 * load-balance first and go to the INI state.
996 */
997 si->exp = TICK_ETERNITY;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200998 if (unlikely(!(s->flags & SF_ASSIGNED)))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100999 si->state = SI_ST_REQ;
1000 else {
1001 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1002 si->state = SI_ST_ASS;
1003 }
1004 return;
1005 }
1006
1007 /* Connection request still in queue... */
1008 if (si->flags & SI_FL_EXP) {
1009 /* ... and timeout expired */
1010 si->exp = TICK_ETERNITY;
1011 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau66425e32018-07-25 06:55:12 +02001012
1013 /* we may need to know the position in the queue for logging */
1014 pendconn_cond_unlink(s->pend_pos);
1015
Willy Tarreau827aee92011-03-10 16:55:02 +01001016 if (srv)
Christopher Faulet29f77e82017-06-08 14:04:45 +02001017 HA_ATOMIC_ADD(&srv->counters.failed_conns, 1);
Christopher Fauletff8abcd2017-06-02 15:33:24 +02001018 HA_ATOMIC_ADD(&s->be->be_counters.failed_conns, 1);
Willy Tarreau73b013b2012-05-21 16:31:45 +02001019 si_shutr(si);
1020 si_shutw(si);
Willy Tarreau103197d2014-11-28 15:26:12 +01001021 req->flags |= CF_WRITE_TIMEOUT;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001022 if (!si->err_type)
1023 si->err_type = SI_ET_QUEUE_TO;
1024 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001025 if (s->srv_error)
1026 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001027 return;
1028 }
1029
1030 /* Connection remains in queue, check if we have to abort it */
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -07001031 if (check_req_may_abort(req, s)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001032 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau66425e32018-07-25 06:55:12 +02001033
1034 /* we may need to know the position in the queue for logging */
1035 pendconn_cond_unlink(s->pend_pos);
1036
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001037 si->err_type |= SI_ET_QUEUE_ABRT;
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -07001038 goto abort_connection;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001039 }
1040
1041 /* Nothing changed */
1042 return;
1043 }
1044 else if (si->state == SI_ST_TAR) {
1045 /* Connection request might be aborted */
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -07001046 if (check_req_may_abort(req, s)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001047 si->err_type |= SI_ET_CONN_ABRT;
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -07001048 goto abort_connection;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001049 }
1050
1051 if (!(si->flags & SI_FL_EXP))
1052 return; /* still in turn-around */
1053
1054 si->exp = TICK_ETERNITY;
1055
Willy Tarreau87b09662015-04-03 00:22:06 +02001056 /* we keep trying on the same server as long as the stream is
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001057 * marked "assigned".
1058 * FIXME: Should we force a redispatch attempt when the server is down ?
1059 */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001060 if (s->flags & SF_ASSIGNED)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001061 si->state = SI_ST_ASS;
1062 else
1063 si->state = SI_ST_REQ;
1064 return;
1065 }
Frederik Deweerdt6cd8d132016-04-07 09:01:04 -07001066 return;
1067
1068abort_connection:
1069 /* give up */
1070 si->exp = TICK_ETERNITY;
1071 si_shutr(si);
1072 si_shutw(si);
1073 si->state = SI_ST_CLO;
1074 if (s->srv_error)
1075 s->srv_error(s, si);
1076 return;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001077}
1078
Willy Tarreau87b09662015-04-03 00:22:06 +02001079/* Set correct stream termination flags in case no analyser has done it. It
Simon Hormandec5be42011-06-08 09:19:07 +09001080 * also counts a failed request if the server state has not reached the request
1081 * stage.
1082 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001083static void sess_set_term_flags(struct stream *s)
Simon Hormandec5be42011-06-08 09:19:07 +09001084{
Willy Tarreaue7dff022015-04-03 01:14:29 +02001085 if (!(s->flags & SF_FINST_MASK)) {
Simon Hormandec5be42011-06-08 09:19:07 +09001086 if (s->si[1].state < SI_ST_REQ) {
1087
Christopher Fauletff8abcd2017-06-02 15:33:24 +02001088 HA_ATOMIC_ADD(&strm_fe(s)->fe_counters.failed_req, 1);
Willy Tarreau2c1068c2015-09-23 12:21:21 +02001089 if (strm_li(s) && strm_li(s)->counters)
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +02001090 HA_ATOMIC_ADD(&strm_li(s)->counters->failed_req, 1);
Simon Hormandec5be42011-06-08 09:19:07 +09001091
Willy Tarreaue7dff022015-04-03 01:14:29 +02001092 s->flags |= SF_FINST_R;
Simon Hormandec5be42011-06-08 09:19:07 +09001093 }
1094 else if (s->si[1].state == SI_ST_QUE)
Willy Tarreaue7dff022015-04-03 01:14:29 +02001095 s->flags |= SF_FINST_Q;
Simon Hormandec5be42011-06-08 09:19:07 +09001096 else if (s->si[1].state < SI_ST_EST)
Willy Tarreaue7dff022015-04-03 01:14:29 +02001097 s->flags |= SF_FINST_C;
Simon Hormandec5be42011-06-08 09:19:07 +09001098 else if (s->si[1].state == SI_ST_EST || s->si[1].prev_state == SI_ST_EST)
Willy Tarreaue7dff022015-04-03 01:14:29 +02001099 s->flags |= SF_FINST_D;
Simon Hormandec5be42011-06-08 09:19:07 +09001100 else
Willy Tarreaue7dff022015-04-03 01:14:29 +02001101 s->flags |= SF_FINST_L;
Simon Hormandec5be42011-06-08 09:19:07 +09001102 }
1103}
1104
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001105/* This function initiates a server connection request on a stream interface
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001106 * already in SI_ST_REQ state. Upon success, the state goes to SI_ST_ASS for
1107 * a real connection to a server, indicating that a server has been assigned,
1108 * or SI_ST_EST for a successful connection to an applet. It may also return
1109 * SI_ST_QUE, or SI_ST_CLO upon error.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001110 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001111static void sess_prepare_conn_req(struct stream *s)
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001112{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01001113 struct stream_interface *si = &s->si[1];
1114
Christopher Faulet45073512018-07-20 10:16:29 +02001115 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 +01001116 now_ms, __FUNCTION__,
1117 s,
CJ Ess6eac32e2015-05-02 16:35:24 -04001118 &s->req, &s->res,
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001119 s->req.rex, s->res.wex,
1120 s->req.flags, s->res.flags,
Christopher Faulet45073512018-07-20 10:16:29 +02001121 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 +01001122
1123 if (si->state != SI_ST_REQ)
1124 return;
1125
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001126 if (unlikely(obj_type(s->target) == OBJ_TYPE_APPLET)) {
1127 /* the applet directly goes to the EST state */
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001128 struct appctx *appctx = objt_appctx(si->end);
1129
1130 if (!appctx || appctx->applet != __objt_applet(s->target))
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001131 appctx = si_register_handler(si, objt_applet(s->target));
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001132
1133 if (!appctx) {
1134 /* No more memory, let's immediately abort. Force the
1135 * error code to ignore the ERR_LOCAL which is not a
1136 * real error.
1137 */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001138 s->flags &= ~(SF_ERR_MASK | SF_FINST_MASK);
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001139
1140 si_shutr(si);
1141 si_shutw(si);
Willy Tarreau103197d2014-11-28 15:26:12 +01001142 s->req.flags |= CF_WRITE_ERROR;
Willy Tarreau6bbb2f62013-12-09 17:14:23 +01001143 si->err_type = SI_ET_CONN_RES;
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001144 si->state = SI_ST_CLO;
1145 if (s->srv_error)
1146 s->srv_error(s, si);
1147 return;
1148 }
1149
Willy Tarreauee8269e2017-11-23 17:34:29 +01001150 if (tv_iszero(&s->logs.tv_request))
1151 s->logs.tv_request = now;
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001152 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001153 si->state = SI_ST_EST;
1154 si->err_type = SI_ET_NONE;
Willy Tarreaub9a551e2014-04-23 00:35:17 +02001155 be_set_sess_last(s->be);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01001156 /* let sess_establish() finish the job */
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001157 return;
1158 }
1159
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001160 /* Try to assign a server */
1161 if (srv_redispatch_connect(s) != 0) {
1162 /* We did not get a server. Either we queued the
1163 * connection request, or we encountered an error.
1164 */
1165 if (si->state == SI_ST_QUE)
1166 return;
1167
1168 /* we did not get any server, let's check the cause */
Willy Tarreau73b013b2012-05-21 16:31:45 +02001169 si_shutr(si);
1170 si_shutw(si);
Willy Tarreau103197d2014-11-28 15:26:12 +01001171 s->req.flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001172 if (!si->err_type)
1173 si->err_type = SI_ET_CONN_OTHER;
1174 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001175 if (s->srv_error)
1176 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001177 return;
1178 }
1179
1180 /* The server is assigned */
1181 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1182 si->state = SI_ST_ASS;
Willy Tarreaub9a551e2014-04-23 00:35:17 +02001183 be_set_sess_last(s->be);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001184}
1185
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001186/* This function parses the use-service action ruleset. It executes
1187 * the associated ACL and set an applet as a stream or txn final node.
1188 * it returns ACT_RET_ERR if an error occurs, the proxy left in
1189 * consistent state. It returns ACT_RET_STOP in succes case because
1190 * use-service must be a terminal action. Returns ACT_RET_YIELD
1191 * if the initialisation function require more data.
1192 */
1193enum act_return process_use_service(struct act_rule *rule, struct proxy *px,
1194 struct session *sess, struct stream *s, int flags)
1195
1196{
1197 struct appctx *appctx;
1198
1199 /* Initialises the applet if it is required. */
1200 if (flags & ACT_FLAG_FIRST) {
1201 /* Register applet. this function schedules the applet. */
1202 s->target = &rule->applet.obj_type;
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001203 if (unlikely(!si_register_handler(&s->si[1], objt_applet(s->target))))
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001204 return ACT_RET_ERR;
1205
1206 /* Initialise the context. */
1207 appctx = si_appctx(&s->si[1]);
1208 memset(&appctx->ctx, 0, sizeof(appctx->ctx));
1209 appctx->rule = rule;
Willy Tarreau85cb0ae2017-08-23 10:52:20 +02001210
1211 /* enable the minimally required analyzers in case of HTTP
1212 * keep-alive to properly handle keep-alive and compression
1213 * on the HTTP response.
1214 */
1215 if (rule->from == ACT_F_HTTP_REQ) {
1216 s->req.analysers &= AN_REQ_FLT_HTTP_HDRS | AN_REQ_FLT_END;
1217 s->req.analysers |= AN_REQ_HTTP_XFER_BODY;
1218 }
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001219 }
1220 else
1221 appctx = si_appctx(&s->si[1]);
1222
1223 /* Stops the applet sheduling, in case of the init function miss
1224 * some data.
1225 */
Willy Tarreau0cd3bd62018-11-06 18:46:37 +01001226 si_stop_get(&s->si[1]);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001227
1228 /* Call initialisation. */
1229 if (rule->applet.init)
1230 switch (rule->applet.init(appctx, px, s)) {
1231 case 0: return ACT_RET_ERR;
1232 case 1: break;
1233 default: return ACT_RET_YIELD;
1234 }
1235
1236 /* Now we can schedule the applet. */
Willy Tarreau0cd3bd62018-11-06 18:46:37 +01001237 si_cant_get(&s->si[1]);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001238 appctx_wakeup(appctx);
1239
1240 if (sess->fe == s->be) /* report it if the request was intercepted by the frontend */
Christopher Fauletff8abcd2017-06-02 15:33:24 +02001241 HA_ATOMIC_ADD(&sess->fe->fe_counters.intercepted_req, 1);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001242
1243 /* The flag SF_ASSIGNED prevent from server assignment. */
1244 s->flags |= SF_ASSIGNED;
1245
1246 return ACT_RET_STOP;
1247}
1248
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001249/* This stream analyser checks the switching rules and changes the backend
Willy Tarreau4de91492010-01-22 19:10:05 +01001250 * if appropriate. The default_backend rule is also considered, then the
1251 * target backend's forced persistence rules are also evaluated last if any.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001252 * It returns 1 if the processing can continue on next analysers, or zero if it
1253 * either needs more data or wants to immediately abort the request.
1254 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001255static int process_switching_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001256{
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001257 struct persist_rule *prst_rule;
Willy Tarreau192252e2015-04-04 01:47:55 +02001258 struct session *sess = s->sess;
1259 struct proxy *fe = sess->fe;
Willy Tarreau4de91492010-01-22 19:10:05 +01001260
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001261 req->analysers &= ~an_bit;
1262 req->analyse_exp = TICK_ETERNITY;
1263
Christopher Faulet45073512018-07-20 10:16:29 +02001264 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 +02001265 now_ms, __FUNCTION__,
1266 s,
1267 req,
1268 req->rex, req->wex,
1269 req->flags,
Christopher Faulet45073512018-07-20 10:16:29 +02001270 ci_data(req),
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001271 req->analysers);
1272
1273 /* now check whether we have some switching rules for this request */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001274 if (!(s->flags & SF_BE_ASSIGNED)) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001275 struct switching_rule *rule;
1276
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001277 list_for_each_entry(rule, &fe->switching_rules, list) {
Willy Tarreauf51658d2014-04-23 01:21:56 +02001278 int ret = 1;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001279
Willy Tarreauf51658d2014-04-23 01:21:56 +02001280 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001281 ret = acl_exec_cond(rule->cond, fe, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001282 ret = acl_pass(ret);
1283 if (rule->cond->pol == ACL_COND_UNLESS)
1284 ret = !ret;
1285 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001286
1287 if (ret) {
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001288 /* If the backend name is dynamic, try to resolve the name.
1289 * If we can't resolve the name, or if any error occurs, break
1290 * the loop and fallback to the default backend.
1291 */
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001292 struct proxy *backend = NULL;
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001293
1294 if (rule->dynamic) {
Willy Tarreau83061a82018-07-13 11:56:34 +02001295 struct buffer *tmp;
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001296
1297 tmp = alloc_trash_chunk();
1298 if (!tmp)
1299 goto sw_failed;
1300
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001301 if (build_logline(s, tmp->area, tmp->size, &rule->be.expr))
1302 backend = proxy_be_by_name(tmp->area);
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001303
1304 free_trash_chunk(tmp);
1305 tmp = NULL;
1306
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001307 if (!backend)
1308 break;
1309 }
1310 else
1311 backend = rule->be.backend;
1312
Willy Tarreau87b09662015-04-03 00:22:06 +02001313 if (!stream_set_backend(s, backend))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001314 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001315 break;
1316 }
1317 }
1318
1319 /* To ensure correct connection accounting on the backend, we
1320 * have to assign one if it was not set (eg: a listen). This
1321 * measure also takes care of correctly setting the default
1322 * backend if any.
1323 */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001324 if (!(s->flags & SF_BE_ASSIGNED))
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001325 if (!stream_set_backend(s, fe->defbe.be ? fe->defbe.be : s->be))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001326 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001327 }
1328
Willy Tarreaufb356202010-08-03 14:02:05 +02001329 /* 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 +02001330 if (fe == s->be) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001331 s->req.analysers &= ~AN_REQ_INSPECT_BE;
1332 s->req.analysers &= ~AN_REQ_HTTP_PROCESS_BE;
Christopher Faulet0184ea72017-01-05 14:06:34 +01001333 s->req.analysers &= ~AN_REQ_FLT_START_BE;
Willy Tarreaufb356202010-08-03 14:02:05 +02001334 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001335
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001336 /* 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 +02001337 * persistence rule, and report that in the stream.
Willy Tarreau4de91492010-01-22 19:10:05 +01001338 */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001339 list_for_each_entry(prst_rule, &s->be->persist_rules, list) {
Willy Tarreau4de91492010-01-22 19:10:05 +01001340 int ret = 1;
1341
1342 if (prst_rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001343 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 +01001344 ret = acl_pass(ret);
1345 if (prst_rule->cond->pol == ACL_COND_UNLESS)
1346 ret = !ret;
1347 }
1348
1349 if (ret) {
1350 /* no rule, or the rule matches */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001351 if (prst_rule->type == PERSIST_TYPE_FORCE) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001352 s->flags |= SF_FORCE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001353 } else {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001354 s->flags |= SF_IGNORE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001355 }
Willy Tarreau4de91492010-01-22 19:10:05 +01001356 break;
1357 }
1358 }
1359
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001360 return 1;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001361
1362 sw_failed:
1363 /* immediately abort this request in case of allocation failure */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001364 channel_abort(&s->req);
1365 channel_abort(&s->res);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001366
Willy Tarreaue7dff022015-04-03 01:14:29 +02001367 if (!(s->flags & SF_ERR_MASK))
1368 s->flags |= SF_ERR_RESOURCE;
1369 if (!(s->flags & SF_FINST_MASK))
1370 s->flags |= SF_FINST_R;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001371
Willy Tarreaueee5b512015-04-03 23:46:31 +02001372 if (s->txn)
1373 s->txn->status = 500;
Christopher Faulet0184ea72017-01-05 14:06:34 +01001374 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001375 s->req.analyse_exp = TICK_ETERNITY;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001376 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001377}
1378
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001379/* This stream analyser works on a request. It applies all use-server rules on
1380 * it then returns 1. The data must already be present in the buffer otherwise
1381 * they won't match. It always returns 1.
1382 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001383static int process_server_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001384{
1385 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001386 struct session *sess = s->sess;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001387 struct server_rule *rule;
1388
Christopher Faulet45073512018-07-20 10:16:29 +02001389 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 +02001390 now_ms, __FUNCTION__,
1391 s,
1392 req,
1393 req->rex, req->wex,
1394 req->flags,
Christopher Faulet45073512018-07-20 10:16:29 +02001395 c_data(req),
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001396 req->analysers);
1397
Willy Tarreaue7dff022015-04-03 01:14:29 +02001398 if (!(s->flags & SF_ASSIGNED)) {
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001399 list_for_each_entry(rule, &px->server_rules, list) {
1400 int ret;
1401
Willy Tarreau192252e2015-04-04 01:47:55 +02001402 ret = acl_exec_cond(rule->cond, s->be, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001403 ret = acl_pass(ret);
1404 if (rule->cond->pol == ACL_COND_UNLESS)
1405 ret = !ret;
1406
1407 if (ret) {
1408 struct server *srv = rule->srv.ptr;
1409
Emeric Brun52a91d32017-08-31 14:41:55 +02001410 if ((srv->cur_state != SRV_ST_STOPPED) ||
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001411 (px->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +02001412 (s->flags & SF_FORCE_PRST)) {
1413 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001414 s->target = &srv->obj_type;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001415 break;
1416 }
1417 /* if the server is not UP, let's go on with next rules
1418 * just in case another one is suited.
1419 */
1420 }
1421 }
1422 }
1423
1424 req->analysers &= ~an_bit;
1425 req->analyse_exp = TICK_ETERNITY;
1426 return 1;
1427}
1428
Emeric Brun1d33b292010-01-04 15:47:17 +01001429/* This stream analyser works on a request. It applies all sticking rules on
1430 * it then returns 1. The data must already be present in the buffer otherwise
1431 * they won't match. It always returns 1.
1432 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001433static int process_sticking_rules(struct stream *s, struct channel *req, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001434{
1435 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001436 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001437 struct sticking_rule *rule;
1438
Christopher Faulet45073512018-07-20 10:16:29 +02001439 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 +01001440 now_ms, __FUNCTION__,
1441 s,
1442 req,
1443 req->rex, req->wex,
1444 req->flags,
Christopher Faulet45073512018-07-20 10:16:29 +02001445 ci_data(req),
Emeric Brun1d33b292010-01-04 15:47:17 +01001446 req->analysers);
1447
1448 list_for_each_entry(rule, &px->sticking_rules, list) {
1449 int ret = 1 ;
1450 int i;
1451
Willy Tarreau9667a802013-12-09 12:52:13 +01001452 /* Only the first stick store-request of each table is applied
1453 * and other ones are ignored. The purpose is to allow complex
1454 * configurations which look for multiple entries by decreasing
1455 * order of precision and to stop at the first which matches.
1456 * An example could be a store of the IP address from an HTTP
1457 * header first, then from the source if not found.
1458 */
Emeric Brun1d33b292010-01-04 15:47:17 +01001459 for (i = 0; i < s->store_count; i++) {
1460 if (rule->table.t == s->store[i].table)
1461 break;
1462 }
1463
1464 if (i != s->store_count)
1465 continue;
1466
1467 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001468 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001469 ret = acl_pass(ret);
1470 if (rule->cond->pol == ACL_COND_UNLESS)
1471 ret = !ret;
1472 }
1473
1474 if (ret) {
1475 struct stktable_key *key;
1476
Willy Tarreau192252e2015-04-04 01:47:55 +02001477 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 +01001478 if (!key)
1479 continue;
1480
1481 if (rule->flags & STK_IS_MATCH) {
1482 struct stksess *ts;
1483
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001484 if ((ts = stktable_lookup_key(rule->table.t, key)) != NULL) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001485 if (!(s->flags & SF_ASSIGNED)) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001486 struct eb32_node *node;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001487 void *ptr;
Emeric Brun1d33b292010-01-04 15:47:17 +01001488
1489 /* srv found in table */
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001490 HA_RWLOCK_RDLOCK(STK_SESS_LOCK, &ts->lock);
Willy Tarreaub8d42d02018-09-20 11:11:15 +02001491 ptr = __stktable_data_ptr(rule->table.t, ts, STKTABLE_DT_SERVER_ID);
Willy Tarreau13c29de2010-06-06 16:40:39 +02001492 node = eb32_lookup(&px->conf.used_server_id, stktable_data_cast(ptr, server_id));
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001493 HA_RWLOCK_RDUNLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun1d33b292010-01-04 15:47:17 +01001494 if (node) {
1495 struct server *srv;
1496
1497 srv = container_of(node, struct server, conf.id);
Emeric Brun52a91d32017-08-31 14:41:55 +02001498 if ((srv->cur_state != SRV_ST_STOPPED) ||
Willy Tarreau4de91492010-01-22 19:10:05 +01001499 (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;
Emeric Brun1d33b292010-01-04 15:47:17 +01001503 }
1504 }
1505 }
Emeric Brun819fc6f2017-06-13 19:37:32 +02001506 stktable_touch_local(rule->table.t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001507 }
1508 }
1509 if (rule->flags & STK_IS_STORE) {
1510 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
1511 struct stksess *ts;
1512
1513 ts = stksess_new(rule->table.t, key);
1514 if (ts) {
1515 s->store[s->store_count].table = rule->table.t;
1516 s->store[s->store_count++].ts = ts;
1517 }
1518 }
1519 }
1520 }
1521 }
1522
1523 req->analysers &= ~an_bit;
1524 req->analyse_exp = TICK_ETERNITY;
1525 return 1;
1526}
1527
1528/* This stream analyser works on a response. It applies all store rules on it
1529 * then returns 1. The data must already be present in the buffer otherwise
1530 * they won't match. It always returns 1.
1531 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001532static int process_store_rules(struct stream *s, struct channel *rep, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001533{
1534 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001535 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001536 struct sticking_rule *rule;
1537 int i;
Willy Tarreau9667a802013-12-09 12:52:13 +01001538 int nbreq = s->store_count;
Emeric Brun1d33b292010-01-04 15:47:17 +01001539
Christopher Faulet45073512018-07-20 10:16:29 +02001540 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%lu analysers=%02x\n",
Emeric Brun1d33b292010-01-04 15:47:17 +01001541 now_ms, __FUNCTION__,
1542 s,
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001543 rep,
1544 rep->rex, rep->wex,
1545 rep->flags,
Christopher Faulet45073512018-07-20 10:16:29 +02001546 ci_data(rep),
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001547 rep->analysers);
Emeric Brun1d33b292010-01-04 15:47:17 +01001548
1549 list_for_each_entry(rule, &px->storersp_rules, list) {
1550 int ret = 1 ;
Emeric Brun1d33b292010-01-04 15:47:17 +01001551
Willy Tarreau9667a802013-12-09 12:52:13 +01001552 /* Only the first stick store-response of each table is applied
1553 * and other ones are ignored. The purpose is to allow complex
1554 * configurations which look for multiple entries by decreasing
1555 * order of precision and to stop at the first which matches.
1556 * An example could be a store of a set-cookie value, with a
1557 * fallback to a parameter found in a 302 redirect.
1558 *
1559 * The store-response rules are not allowed to override the
1560 * store-request rules for the same table, but they may coexist.
1561 * Thus we can have up to one store-request entry and one store-
1562 * response entry for the same table at any time.
1563 */
1564 for (i = nbreq; i < s->store_count; i++) {
1565 if (rule->table.t == s->store[i].table)
1566 break;
1567 }
1568
1569 /* skip existing entries for this table */
1570 if (i < s->store_count)
1571 continue;
1572
Emeric Brun1d33b292010-01-04 15:47:17 +01001573 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001574 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_RES|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001575 ret = acl_pass(ret);
1576 if (rule->cond->pol == ACL_COND_UNLESS)
1577 ret = !ret;
1578 }
1579
1580 if (ret) {
1581 struct stktable_key *key;
1582
Willy Tarreau192252e2015-04-04 01:47:55 +02001583 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 +01001584 if (!key)
1585 continue;
1586
Willy Tarreau37e340c2013-12-06 23:05:21 +01001587 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001588 struct stksess *ts;
1589
1590 ts = stksess_new(rule->table.t, key);
1591 if (ts) {
1592 s->store[s->store_count].table = rule->table.t;
Emeric Brun1d33b292010-01-04 15:47:17 +01001593 s->store[s->store_count++].ts = ts;
1594 }
1595 }
1596 }
1597 }
1598
1599 /* process store request and store response */
1600 for (i = 0; i < s->store_count; i++) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001601 struct stksess *ts;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001602 void *ptr;
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001603
Willy Tarreauc93cd162014-05-13 15:54:22 +02001604 if (objt_server(s->target) && objt_server(s->target)->flags & SRV_F_NON_STICK) {
Simon Hormanfa461682011-06-25 09:39:49 +09001605 stksess_free(s->store[i].table, s->store[i].ts);
1606 s->store[i].ts = NULL;
1607 continue;
1608 }
1609
Emeric Brun819fc6f2017-06-13 19:37:32 +02001610 ts = stktable_set_entry(s->store[i].table, s->store[i].ts);
1611 if (ts != s->store[i].ts) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001612 /* the entry already existed, we can free ours */
Emeric Brun1d33b292010-01-04 15:47:17 +01001613 stksess_free(s->store[i].table, s->store[i].ts);
Emeric Brun1d33b292010-01-04 15:47:17 +01001614 }
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001615 s->store[i].ts = NULL;
Emeric Brun819fc6f2017-06-13 19:37:32 +02001616
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001617 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Willy Tarreaub8d42d02018-09-20 11:11:15 +02001618 ptr = __stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_ID);
1619 stktable_data_cast(ptr, server_id) = __objt_server(s->target)->puid;
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001620 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun819fc6f2017-06-13 19:37:32 +02001621 stktable_touch_local(s->store[i].table, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001622 }
Willy Tarreau2a164ee2010-06-18 09:57:45 +02001623 s->store_count = 0; /* everything is stored */
Emeric Brun1d33b292010-01-04 15:47:17 +01001624
1625 rep->analysers &= ~an_bit;
1626 rep->analyse_exp = TICK_ETERNITY;
1627 return 1;
1628}
1629
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001630/* This macro is very specific to the function below. See the comments in
Willy Tarreau87b09662015-04-03 00:22:06 +02001631 * process_stream() below to understand the logic and the tests.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001632 */
1633#define UPDATE_ANALYSERS(real, list, back, flag) { \
1634 list = (((list) & ~(flag)) | ~(back)) & (real); \
1635 back = real; \
1636 if (!(list)) \
1637 break; \
1638 if (((list) ^ ((list) & ((list) - 1))) < (flag)) \
1639 continue; \
1640}
1641
Christopher Fauleta9215b72016-05-11 17:06:28 +02001642/* These 2 following macros call an analayzer for the specified channel if the
1643 * right flag is set. The first one is used for "filterable" analyzers. If a
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001644 * stream has some registered filters, pre and post analyaze callbacks are
Christopher Faulet0184ea72017-01-05 14:06:34 +01001645 * called. The second are used for other analyzers (AN_REQ/RES_FLT_* and
Christopher Fauleta9215b72016-05-11 17:06:28 +02001646 * AN_REQ/RES_HTTP_XFER_BODY) */
1647#define FLT_ANALYZE(strm, chn, fun, list, back, flag, ...) \
1648 { \
1649 if ((list) & (flag)) { \
1650 if (HAS_FILTERS(strm)) { \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001651 if (!flt_pre_analyze((strm), (chn), (flag))) \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001652 break; \
1653 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1654 break; \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001655 if (!flt_post_analyze((strm), (chn), (flag))) \
1656 break; \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001657 } \
1658 else { \
1659 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1660 break; \
1661 } \
1662 UPDATE_ANALYSERS((chn)->analysers, (list), \
1663 (back), (flag)); \
1664 } \
1665 }
1666
1667#define ANALYZE(strm, chn, fun, list, back, flag, ...) \
1668 { \
1669 if ((list) & (flag)) { \
1670 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1671 break; \
1672 UPDATE_ANALYSERS((chn)->analysers, (list), \
1673 (back), (flag)); \
1674 } \
1675 }
1676
Willy Tarreau87b09662015-04-03 00:22:06 +02001677/* Processes the client, server, request and response jobs of a stream task,
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001678 * then puts it back to the wait queue in a clean state, or cleans up its
1679 * resources if it must be deleted. Returns in <next> the date the task wants
1680 * to be woken up, or TICK_ETERNITY. In order not to call all functions for
1681 * nothing too many times, the request and response buffers flags are monitored
1682 * and each function is called only if at least another function has changed at
1683 * least one flag it is interested in.
1684 */
Olivier Houchard9f6af332018-05-25 14:04:04 +02001685struct task *process_stream(struct task *t, void *context, unsigned short state)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001686{
Willy Tarreau827aee92011-03-10 16:55:02 +01001687 struct server *srv;
Olivier Houchard9f6af332018-05-25 14:04:04 +02001688 struct stream *s = context;
Willy Tarreaufb0afa72015-04-03 14:46:27 +02001689 struct session *sess = s->sess;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001690 unsigned int rqf_last, rpf_last;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001691 unsigned int rq_prod_last, rq_cons_last;
1692 unsigned int rp_cons_last, rp_prod_last;
Willy Tarreau576507f2010-01-07 00:09:04 +01001693 unsigned int req_ana_back;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001694 struct channel *req, *res;
1695 struct stream_interface *si_f, *si_b;
1696
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01001697 activity[tid].stream++;
1698
Willy Tarreau8f128b42014-11-28 15:07:47 +01001699 req = &s->req;
1700 res = &s->res;
1701
1702 si_f = &s->si[0];
1703 si_b = &s->si[1];
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001704
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001705 /* First, attempt to receive pending data from I/O layers */
Willy Tarreauade64782018-11-17 19:51:07 +01001706 si_sync_recv(si_f);
1707 si_sync_recv(si_b);
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001708
Olivier Houchard53216e72018-10-10 15:46:36 +02001709redo:
Olivier Houchardc2aa7112018-09-11 18:27:21 +02001710
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001711 //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 +01001712 // si_f->state, si_b->state, si_b->err_type, req->flags, res->flags);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001713
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001714 /* this data may be no longer valid, clear it */
Willy Tarreaueee5b512015-04-03 23:46:31 +02001715 if (s->txn)
1716 memset(&s->txn->auth, 0, sizeof(s->txn->auth));
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001717
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02001718 /* This flag must explicitly be set every time */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001719 req->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
1720 res->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001721
1722 /* Keep a copy of req/rep flags so that we can detect shutdowns */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001723 rqf_last = req->flags & ~CF_MASK_ANALYSER;
1724 rpf_last = res->flags & ~CF_MASK_ANALYSER;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001725
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001726 /* we don't want the stream interface functions to recursively wake us up */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001727 si_f->flags |= SI_FL_DONT_WAKE;
1728 si_b->flags |= SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001729
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001730 /* update pending events */
Olivier Houchard9f6af332018-05-25 14:04:04 +02001731 s->pending_events |= (state & TASK_WOKEN_ANY);
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001732
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001733 /* 1a: Check for low level timeouts if needed. We just set a flag on
1734 * stream interfaces when their timeouts have expired.
1735 */
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001736 if (unlikely(s->pending_events & TASK_WOKEN_TIMER)) {
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001737 si_check_timeouts(si_f);
1738 si_check_timeouts(si_b);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001739
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001740 /* check channel timeouts, and close the corresponding stream interfaces
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001741 * for future reads or writes. Note: this will also concern upper layers
1742 * but we do not touch any other flag. We must be careful and correctly
1743 * detect state changes when calling them.
1744 */
1745
Willy Tarreau8f128b42014-11-28 15:07:47 +01001746 channel_check_timeouts(req);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001747
Willy Tarreau8f128b42014-11-28 15:07:47 +01001748 if (unlikely((req->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1749 si_b->flags |= SI_FL_NOLINGER;
1750 si_shutw(si_b);
Willy Tarreau14641402009-12-29 14:49:56 +01001751 }
1752
Willy Tarreau8f128b42014-11-28 15:07:47 +01001753 if (unlikely((req->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1754 if (si_f->flags & SI_FL_NOHALF)
1755 si_f->flags |= SI_FL_NOLINGER;
1756 si_shutr(si_f);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001757 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001758
Willy Tarreau8f128b42014-11-28 15:07:47 +01001759 channel_check_timeouts(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001760
Willy Tarreau8f128b42014-11-28 15:07:47 +01001761 if (unlikely((res->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1762 si_f->flags |= SI_FL_NOLINGER;
1763 si_shutw(si_f);
Willy Tarreau14641402009-12-29 14:49:56 +01001764 }
1765
Willy Tarreau8f128b42014-11-28 15:07:47 +01001766 if (unlikely((res->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1767 if (si_b->flags & SI_FL_NOHALF)
1768 si_b->flags |= SI_FL_NOLINGER;
1769 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001770 }
Willy Tarreau798f4322012-11-08 14:49:17 +01001771
Christopher Fauleta00d8172016-11-10 14:58:05 +01001772 if (HAS_FILTERS(s))
1773 flt_stream_check_timeouts(s);
1774
Willy Tarreau798f4322012-11-08 14:49:17 +01001775 /* Once in a while we're woken up because the task expires. But
1776 * this does not necessarily mean that a timeout has been reached.
Willy Tarreau87b09662015-04-03 00:22:06 +02001777 * So let's not run a whole stream processing if only an expiration
Willy Tarreau798f4322012-11-08 14:49:17 +01001778 * timeout needs to be refreshed.
1779 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001780 if (!((req->flags | res->flags) &
Willy Tarreau798f4322012-11-08 14:49:17 +01001781 (CF_SHUTR|CF_READ_ACTIVITY|CF_READ_TIMEOUT|CF_SHUTW|
Willy Tarreauede3d882018-10-24 17:17:56 +02001782 CF_WRITE_ACTIVITY|CF_WRITE_TIMEOUT|CF_ANA_TIMEOUT)) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01001783 !((si_f->flags | si_b->flags) & (SI_FL_EXP|SI_FL_ERR)) &&
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001784 ((s->pending_events & TASK_WOKEN_ANY) == TASK_WOKEN_TIMER)) {
Willy Tarreau5fb04712016-05-04 10:18:37 +02001785 si_f->flags &= ~SI_FL_DONT_WAKE;
1786 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau798f4322012-11-08 14:49:17 +01001787 goto update_exp_and_leave;
Willy Tarreau5fb04712016-05-04 10:18:37 +02001788 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001789 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001790
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001791 /* below we may emit error messages so we have to ensure that we have
1792 * our buffers properly allocated.
1793 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001794 if (!stream_alloc_work_buffer(s)) {
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001795 /* No buffer available, we've been subscribed to the list of
1796 * buffer waiters, let's wait for our turn.
1797 */
Willy Tarreau5fb04712016-05-04 10:18:37 +02001798 si_f->flags &= ~SI_FL_DONT_WAKE;
1799 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001800 goto update_exp_and_leave;
1801 }
1802
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001803 /* 1b: check for low-level errors reported at the stream interface.
1804 * First we check if it's a retryable error (in which case we don't
1805 * want to tell the buffer). Otherwise we report the error one level
1806 * upper by setting flags into the buffers. Note that the side towards
1807 * the client cannot have connect (hence retryable) errors. Also, the
1808 * connection setup code must be able to deal with any type of abort.
1809 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001810 srv = objt_server(s->target);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001811 if (unlikely(si_f->flags & SI_FL_ERR)) {
1812 if (si_f->state == SI_ST_EST || si_f->state == SI_ST_DIS) {
1813 si_shutr(si_f);
1814 si_shutw(si_f);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001815 si_report_error(si_f);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001816 if (!(req->analysers) && !(res->analysers)) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +02001817 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1818 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001819 if (srv)
Christopher Faulet29f77e82017-06-08 14:04:45 +02001820 HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001821 if (!(s->flags & SF_ERR_MASK))
1822 s->flags |= SF_ERR_CLICL;
1823 if (!(s->flags & SF_FINST_MASK))
1824 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001825 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001826 }
1827 }
1828
Willy Tarreau8f128b42014-11-28 15:07:47 +01001829 if (unlikely(si_b->flags & SI_FL_ERR)) {
1830 if (si_b->state == SI_ST_EST || si_b->state == SI_ST_DIS) {
1831 si_shutr(si_b);
1832 si_shutw(si_b);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001833 si_report_error(si_b);
Christopher Fauletff8abcd2017-06-02 15:33:24 +02001834 HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001835 if (srv)
Christopher Faulet29f77e82017-06-08 14:04:45 +02001836 HA_ATOMIC_ADD(&srv->counters.failed_resp, 1);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001837 if (!(req->analysers) && !(res->analysers)) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +02001838 HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1839 HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001840 if (srv)
Christopher Faulet29f77e82017-06-08 14:04:45 +02001841 HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001842 if (!(s->flags & SF_ERR_MASK))
1843 s->flags |= SF_ERR_SRVCL;
1844 if (!(s->flags & SF_FINST_MASK))
1845 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001846 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001847 }
1848 /* note: maybe we should process connection errors here ? */
1849 }
1850
Willy Tarreau8f128b42014-11-28 15:07:47 +01001851 if (si_b->state == SI_ST_CON) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001852 /* we were trying to establish a connection on the server side,
1853 * maybe it succeeded, maybe it failed, maybe we timed out, ...
1854 */
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01001855 if (unlikely(!sess_update_st_con_tcp(s)))
1856 sess_update_st_cer(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001857 else if (si_b->state == SI_ST_EST)
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01001858 sess_establish(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001859
1860 /* state is now one of SI_ST_CON (still in progress), SI_ST_EST
1861 * (established), SI_ST_DIS (abort), SI_ST_CLO (last error),
1862 * SI_ST_ASS/SI_ST_TAR/SI_ST_REQ for retryable errors.
1863 */
1864 }
1865
Willy Tarreau8f128b42014-11-28 15:07:47 +01001866 rq_prod_last = si_f->state;
1867 rq_cons_last = si_b->state;
1868 rp_cons_last = si_f->state;
1869 rp_prod_last = si_b->state;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001870
1871 resync_stream_interface:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001872 /* Check for connection closure */
1873
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001874 DPRINTF(stderr,
Christopher Faulet45073512018-07-20 10:16:29 +02001875 "[%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 +01001876 now_ms, __FUNCTION__, __LINE__,
1877 t,
1878 s, s->flags,
Willy Tarreau8f128b42014-11-28 15:07:47 +01001879 req, res,
1880 req->rex, res->wex,
1881 req->flags, res->flags,
Christopher Faulet45073512018-07-20 10:16:29 +02001882 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 +01001883 si_f->err_type, si_b->err_type,
1884 si_b->conn_retries);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001885
1886 /* nothing special to be done on client side */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001887 if (unlikely(si_f->state == SI_ST_DIS))
1888 si_f->state = SI_ST_CLO;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001889
1890 /* When a server-side connection is released, we have to count it and
1891 * check for pending connections on this server.
1892 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001893 if (unlikely(si_b->state == SI_ST_DIS)) {
1894 si_b->state = SI_ST_CLO;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001895 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01001896 if (srv) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001897 if (s->flags & SF_CURR_SESS) {
1898 s->flags &= ~SF_CURR_SESS;
Christopher Faulet29f77e82017-06-08 14:04:45 +02001899 HA_ATOMIC_SUB(&srv->cur_sess, 1);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001900 }
1901 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001902 if (may_dequeue_tasks(srv, s->be))
1903 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001904 }
1905 }
1906
1907 /*
1908 * Note: of the transient states (REQ, CER, DIS), only REQ may remain
1909 * at this point.
1910 */
1911
Willy Tarreau0be0ef92009-03-08 19:20:25 +01001912 resync_request:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001913 /* Analyse request */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001914 if (((req->flags & ~rqf_last) & CF_MASK_ANALYSER) ||
1915 ((req->flags ^ rqf_last) & CF_MASK_STATIC) ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01001916 (req->analysers && (req->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01001917 si_f->state != rq_prod_last ||
1918 si_b->state != rq_cons_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001919 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001920 unsigned int flags = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001921
Willy Tarreau8f128b42014-11-28 15:07:47 +01001922 if (si_f->state >= SI_ST_EST) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001923 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001924 unsigned int ana_list;
1925 unsigned int ana_back;
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001926
Willy Tarreau90deb182010-01-07 00:20:41 +01001927 /* it's up to the analysers to stop new connections,
1928 * disable reading or closing. Note: if an analyser
1929 * disables any of these bits, it is responsible for
1930 * enabling them again when it disables itself, so
1931 * that other analysers are called in similar conditions.
1932 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001933 channel_auto_read(req);
1934 channel_auto_connect(req);
1935 channel_auto_close(req);
Willy Tarreauedcf6682008-11-30 23:15:34 +01001936
1937 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01001938 * req->analysers, following the bit order from LSB
Willy Tarreauedcf6682008-11-30 23:15:34 +01001939 * to MSB. The analysers must remove themselves from
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001940 * the list when not needed. Any analyser may return 0
1941 * to break out of the loop, either because of missing
1942 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02001943 * kill the stream. We loop at least once through each
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001944 * analyser, and we may loop again if other analysers
1945 * are added in the middle.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001946 *
1947 * We build a list of analysers to run. We evaluate all
1948 * of these analysers in the order of the lower bit to
1949 * the higher bit. This ordering is very important.
1950 * An analyser will often add/remove other analysers,
1951 * including itself. Any changes to itself have no effect
1952 * on the loop. If it removes any other analysers, we
1953 * want those analysers not to be called anymore during
1954 * this loop. If it adds an analyser that is located
1955 * after itself, we want it to be scheduled for being
1956 * processed during the loop. If it adds an analyser
1957 * which is located before it, we want it to switch to
1958 * it immediately, even if it has already been called
1959 * once but removed since.
1960 *
1961 * In order to achieve this, we compare the analyser
1962 * list after the call with a copy of it before the
1963 * call. The work list is fed with analyser bits that
1964 * appeared during the call. Then we compare previous
1965 * work list with the new one, and check the bits that
1966 * appeared. If the lowest of these bits is lower than
1967 * the current bit, it means we have enabled a previous
1968 * analyser and must immediately loop again.
Willy Tarreauedcf6682008-11-30 23:15:34 +01001969 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001970
Willy Tarreau8f128b42014-11-28 15:07:47 +01001971 ana_list = ana_back = req->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001972 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001973 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01001974 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_FE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001975 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_FE);
1976 FLT_ANALYZE(s, req, http_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_HTTP);
1977 FLT_ANALYZE(s, req, http_wait_for_request_body, ana_list, ana_back, AN_REQ_HTTP_BODY);
1978 FLT_ANALYZE(s, req, http_process_req_common, ana_list, ana_back, AN_REQ_HTTP_PROCESS_FE, sess->fe);
1979 FLT_ANALYZE(s, req, process_switching_rules, ana_list, ana_back, AN_REQ_SWITCHING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001980 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001981 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_BE);
1982 FLT_ANALYZE(s, req, http_process_req_common, ana_list, ana_back, AN_REQ_HTTP_PROCESS_BE, s->be);
1983 FLT_ANALYZE(s, req, http_process_tarpit, ana_list, ana_back, AN_REQ_HTTP_TARPIT);
1984 FLT_ANALYZE(s, req, process_server_rules, ana_list, ana_back, AN_REQ_SRV_RULES);
1985 FLT_ANALYZE(s, req, http_process_request, ana_list, ana_back, AN_REQ_HTTP_INNER);
1986 FLT_ANALYZE(s, req, tcp_persist_rdp_cookie, ana_list, ana_back, AN_REQ_PRST_RDP_COOKIE);
1987 FLT_ANALYZE(s, req, process_sticking_rules, ana_list, ana_back, AN_REQ_STICKING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001988 ANALYZE (s, req, flt_analyze_http_headers, ana_list, ana_back, AN_REQ_FLT_HTTP_HDRS);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001989 ANALYZE (s, req, http_request_forward_body, ana_list, ana_back, AN_REQ_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02001990 ANALYZE (s, req, pcli_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001991 ANALYZE (s, req, flt_xfer_data, ana_list, ana_back, AN_REQ_FLT_XFER_DATA);
1992 ANALYZE (s, req, flt_end_analyze, ana_list, ana_back, AN_REQ_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01001993 break;
1994 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001995 }
Willy Tarreau84455332009-03-15 22:34:05 +01001996
Willy Tarreau8f128b42014-11-28 15:07:47 +01001997 rq_prod_last = si_f->state;
1998 rq_cons_last = si_b->state;
1999 req->flags &= ~CF_WAKE_ONCE;
2000 rqf_last = req->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02002001
Willy Tarreau8f128b42014-11-28 15:07:47 +01002002 if ((req->flags ^ flags) & CF_MASK_STATIC)
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002003 goto resync_request;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002004 }
2005
Willy Tarreau576507f2010-01-07 00:09:04 +01002006 /* we'll monitor the request analysers while parsing the response,
2007 * because some response analysers may indirectly enable new request
2008 * analysers (eg: HTTP keep-alive).
2009 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002010 req_ana_back = req->analysers;
Willy Tarreau576507f2010-01-07 00:09:04 +01002011
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002012 resync_response:
2013 /* Analyse response */
2014
Willy Tarreau8f128b42014-11-28 15:07:47 +01002015 if (((res->flags & ~rpf_last) & CF_MASK_ANALYSER) ||
2016 (res->flags ^ rpf_last) & CF_MASK_STATIC ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01002017 (res->analysers && (res->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01002018 si_f->state != rp_cons_last ||
2019 si_b->state != rp_prod_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002020 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002021 unsigned int flags = res->flags;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002022
Willy Tarreau8f128b42014-11-28 15:07:47 +01002023 if (si_b->state >= SI_ST_EST) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01002024 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002025 unsigned int ana_list;
2026 unsigned int ana_back;
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002027
Willy Tarreau90deb182010-01-07 00:20:41 +01002028 /* it's up to the analysers to stop disable reading or
2029 * closing. Note: if an analyser disables any of these
2030 * bits, it is responsible for enabling them again when
2031 * it disables itself, so that other analysers are called
2032 * in similar conditions.
2033 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002034 channel_auto_read(res);
2035 channel_auto_close(res);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002036
2037 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01002038 * res->analysers, following the bit order from LSB
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002039 * to MSB. The analysers must remove themselves from
2040 * the list when not needed. Any analyser may return 0
2041 * to break out of the loop, either because of missing
2042 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02002043 * kill the stream. We loop at least once through each
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002044 * analyser, and we may loop again if other analysers
2045 * are added in the middle.
2046 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002047
Willy Tarreau8f128b42014-11-28 15:07:47 +01002048 ana_list = ana_back = res->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01002049 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002050 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01002051 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_FE);
2052 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02002053 FLT_ANALYZE(s, res, tcp_inspect_response, ana_list, ana_back, AN_RES_INSPECT);
2054 FLT_ANALYZE(s, res, http_wait_for_response, ana_list, ana_back, AN_RES_WAIT_HTTP);
2055 FLT_ANALYZE(s, res, process_store_rules, ana_list, ana_back, AN_RES_STORE_RULES);
2056 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 +01002057 ANALYZE (s, res, flt_analyze_http_headers, ana_list, ana_back, AN_RES_FLT_HTTP_HDRS);
Christopher Fauleta9215b72016-05-11 17:06:28 +02002058 ANALYZE (s, res, http_response_forward_body, ana_list, ana_back, AN_RES_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02002059 ANALYZE (s, res, pcli_wait_for_response, ana_list, ana_back, AN_RES_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01002060 ANALYZE (s, res, flt_xfer_data, ana_list, ana_back, AN_RES_FLT_XFER_DATA);
2061 ANALYZE (s, res, flt_end_analyze, ana_list, ana_back, AN_RES_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01002062 break;
2063 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002064 }
2065
Willy Tarreau8f128b42014-11-28 15:07:47 +01002066 rp_cons_last = si_f->state;
2067 rp_prod_last = si_b->state;
Christopher Fauletcdaea892017-07-06 15:49:30 +02002068 res->flags &= ~CF_WAKE_ONCE;
Willy Tarreau8f128b42014-11-28 15:07:47 +01002069 rpf_last = res->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02002070
Willy Tarreau8f128b42014-11-28 15:07:47 +01002071 if ((res->flags ^ flags) & CF_MASK_STATIC)
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002072 goto resync_response;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002073 }
2074
Willy Tarreau576507f2010-01-07 00:09:04 +01002075 /* maybe someone has added some request analysers, so we must check and loop */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002076 if (req->analysers & ~req_ana_back)
Willy Tarreau576507f2010-01-07 00:09:04 +01002077 goto resync_request;
2078
Willy Tarreau8f128b42014-11-28 15:07:47 +01002079 if ((req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0499e352010-12-17 07:13:42 +01002080 goto resync_request;
2081
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002082 /* FIXME: here we should call protocol handlers which rely on
2083 * both buffers.
2084 */
2085
2086
2087 /*
Willy Tarreau87b09662015-04-03 00:22:06 +02002088 * Now we propagate unhandled errors to the stream. Normally
Willy Tarreauae526782010-03-04 20:34:23 +01002089 * we're just in a data phase here since it means we have not
2090 * seen any analyser who could set an error status.
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002091 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002092 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002093 if (unlikely(!(s->flags & SF_ERR_MASK))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002094 if (req->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002095 /* Report it if the client got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002096 req->analysers = 0;
2097 if (req->flags & CF_READ_ERROR) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +02002098 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
2099 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002100 if (srv)
Christopher Faulet29f77e82017-06-08 14:04:45 +02002101 HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002102 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002103 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002104 else if (req->flags & CF_READ_TIMEOUT) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +02002105 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
2106 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002107 if (srv)
Christopher Faulet29f77e82017-06-08 14:04:45 +02002108 HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002109 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01002110 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002111 else if (req->flags & CF_WRITE_ERROR) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +02002112 HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
2113 HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002114 if (srv)
Christopher Faulet29f77e82017-06-08 14:04:45 +02002115 HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002116 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002117 }
2118 else {
Christopher Fauletff8abcd2017-06-02 15:33:24 +02002119 HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
2120 HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002121 if (srv)
Christopher Faulet29f77e82017-06-08 14:04:45 +02002122 HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002123 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002124 }
Willy Tarreau84455332009-03-15 22:34:05 +01002125 sess_set_term_flags(s);
2126 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002127 else if (res->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002128 /* Report it if the server got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002129 res->analysers = 0;
2130 if (res->flags & CF_READ_ERROR) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +02002131 HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
2132 HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002133 if (srv)
Christopher Faulet29f77e82017-06-08 14:04:45 +02002134 HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002135 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002136 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002137 else if (res->flags & CF_READ_TIMEOUT) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +02002138 HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
2139 HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002140 if (srv)
Christopher Faulet29f77e82017-06-08 14:04:45 +02002141 HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002142 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002143 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002144 else if (res->flags & CF_WRITE_ERROR) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +02002145 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
2146 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002147 if (srv)
Christopher Faulet29f77e82017-06-08 14:04:45 +02002148 HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002149 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002150 }
2151 else {
Christopher Fauletff8abcd2017-06-02 15:33:24 +02002152 HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
2153 HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002154 if (srv)
Christopher Faulet29f77e82017-06-08 14:04:45 +02002155 HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002156 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01002157 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002158 sess_set_term_flags(s);
2159 }
Willy Tarreau84455332009-03-15 22:34:05 +01002160 }
2161
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002162 /*
2163 * Here we take care of forwarding unhandled data. This also includes
2164 * connection establishments and shutdown requests.
2165 */
2166
2167
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002168 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002169 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002170 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002171 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002172 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02002173 if (unlikely((!req->analysers || (req->analysers == AN_REQ_FLT_END && !(req->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002174 !(req->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
2175 (si_f->state >= SI_ST_EST) &&
2176 (req->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002177 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002178 * attached to it. If any data are left in, we'll permit them to
2179 * move.
2180 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002181 channel_auto_read(req);
2182 channel_auto_connect(req);
2183 channel_auto_close(req);
Willy Tarreau5bd8c372009-01-19 00:32:22 +01002184
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002185 if (IS_HTX_STRM(s)) {
2186 struct htx *htx = htxbuf(&req->buf);
2187
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002188 /* We'll let data flow between the producer (if still connected)
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002189 * to the consumer.
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002190 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002191 co_set_data(req, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002192 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002193 channel_htx_forward_forever(req, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002194 }
2195 else {
2196 /* We'll let data flow between the producer (if still connected)
2197 * to the consumer (which might possibly not be connected yet).
2198 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002199 c_adv(req, ci_data(req));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002200 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2201 channel_forward_forever(req);
Willy Tarreau42529c32015-07-09 18:38:57 +02002202
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002203 /* Just in order to support fetching HTTP contents after start
2204 * of forwarding when the HTTP forwarding analyser is not used,
2205 * we simply reset msg->sov so that HTTP rewinding points to the
2206 * headers.
2207 */
Olivier Houchard1909f6d2018-12-06 13:28:30 +01002208 if (s->txn)
2209 s->txn->req.sov = s->txn->req.eoh + s->txn->req.eol - co_data(req);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002210 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002211 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002212
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002213 /* check if it is wise to enable kernel splicing to forward request data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002214 if (!(req->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2215 req->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002216 (global.tune.options & GTUNE_USE_SPLICE) &&
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002217 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->rcv_pipe) &&
2218 (objt_cs(si_b->end) && __objt_cs(si_b->end)->conn->xprt && __objt_cs(si_b->end)->conn->xprt->snd_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002219 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002220 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_REQ) ||
2221 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002222 (req->flags & CF_STREAMER_FAST)))) {
2223 req->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002224 }
2225
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002226 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002227 rqf_last = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002228
2229 /*
2230 * Now forward all shutdown requests between both sides of the buffer
2231 */
2232
Willy Tarreau520d95e2009-09-19 21:04:57 +02002233 /* first, let's check if the request buffer needs to shutdown(write), which may
2234 * happen either because the input is closed or because we want to force a close
Willy Tarreau05cdd962014-05-10 14:30:07 +02002235 * once the server has begun to respond. If a half-closed timeout is set, we adjust
2236 * the other side's timeout as well.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002237 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002238 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau05cdd962014-05-10 14:30:07 +02002239 (CF_AUTO_CLOSE|CF_SHUTR))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002240 channel_shutw_now(req);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002241 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002242
2243 /* shutdown(write) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002244 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2245 channel_is_empty(req))) {
2246 if (req->flags & CF_READ_ERROR)
2247 si_b->flags |= SI_FL_NOLINGER;
2248 si_shutw(si_b);
Willy Tarreau8615c2a2013-06-21 08:20:19 +02002249 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002250
2251 /* shutdown(write) done on server side, we must stop the client too */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002252 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW &&
2253 !req->analysers))
2254 channel_shutr_now(req);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002255
2256 /* shutdown(read) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002257 if (unlikely((req->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2258 if (si_f->flags & SI_FL_NOHALF)
2259 si_f->flags |= SI_FL_NOLINGER;
2260 si_shutr(si_f);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002261 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002262
Willy Tarreau520d95e2009-09-19 21:04:57 +02002263 /* it's possible that an upper layer has requested a connection setup or abort.
2264 * There are 2 situations where we decide to establish a new connection :
2265 * - there are data scheduled for emission in the buffer
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002266 * - the CF_AUTO_CONNECT flag is set (active connection)
Willy Tarreau520d95e2009-09-19 21:04:57 +02002267 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002268 if (si_b->state == SI_ST_INI) {
2269 if (!(req->flags & CF_SHUTW)) {
2270 if ((req->flags & CF_AUTO_CONNECT) || !channel_is_empty(req)) {
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002271 /* If we have an appctx, there is no connect method, so we
2272 * immediately switch to the connected state, otherwise we
2273 * perform a connection request.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002274 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002275 si_b->state = SI_ST_REQ; /* new connection requested */
2276 si_b->conn_retries = s->be->conn_retries;
Willy Tarreau520d95e2009-09-19 21:04:57 +02002277 }
Willy Tarreau73201222009-08-16 18:27:24 +02002278 }
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002279 else {
Willy Tarreau0542c8b2017-11-24 15:01:10 +01002280 si_release_endpoint(si_b);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002281 si_b->state = SI_ST_CLO; /* shutw+ini = abort */
2282 channel_shutw_now(req); /* fix buffer flags upon abort */
2283 channel_shutr_now(res);
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002284 }
Willy Tarreau92795622009-03-06 12:51:23 +01002285 }
2286
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002287
2288 /* we may have a pending connection request, or a connection waiting
2289 * for completion.
2290 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002291 if (si_b->state >= SI_ST_REQ && si_b->state < SI_ST_CON) {
Thierry FOURNIER4834bc72015-06-06 19:29:07 +02002292
2293 /* prune the request variables and swap to the response variables. */
2294 if (s->vars_reqres.scope != SCOPE_RES) {
Willy Tarreaucda7f3f2018-10-28 13:44:36 +01002295 if (!LIST_ISEMPTY(&s->vars_reqres.head)) {
2296 vars_prune(&s->vars_reqres, s->sess, s);
2297 vars_init(&s->vars_reqres, SCOPE_RES);
2298 }
Thierry FOURNIER4834bc72015-06-06 19:29:07 +02002299 }
2300
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002301 do {
2302 /* nb: step 1 might switch from QUE to ASS, but we first want
2303 * to give a chance to step 2 to perform a redirect if needed.
2304 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002305 if (si_b->state != SI_ST_REQ)
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01002306 sess_update_stream_int(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002307 if (si_b->state == SI_ST_REQ)
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01002308 sess_prepare_conn_req(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002309
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +01002310 /* applets directly go to the ESTABLISHED state. Similarly,
2311 * servers experience the same fate when their connection
2312 * is reused.
2313 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002314 if (unlikely(si_b->state == SI_ST_EST))
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01002315 sess_establish(s);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01002316
Willy Tarreaub44c8732013-12-31 23:16:50 +01002317 /* Now we can add the server name to a header (if requested) */
2318 /* check for HTTP mode and proxy server_name_hdr_name != NULL */
Willy Tarreau9c03b332015-09-07 19:32:33 +02002319 if ((si_b->state >= SI_ST_CON) && (si_b->state < SI_ST_CLO) &&
Willy Tarreaub44c8732013-12-31 23:16:50 +01002320 (s->be->server_id_hdr_name != NULL) &&
2321 (s->be->mode == PR_MODE_HTTP) &&
2322 objt_server(s->target)) {
Christopher Faulet27a3dc82018-10-23 15:34:07 +02002323 http_send_name_header(s, s->be, objt_server(s->target)->id);
Willy Tarreau1e5dfda2013-04-07 18:19:16 +02002324 }
2325
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002326 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002327 if (si_b->state == SI_ST_ASS && srv && srv->rdr_len && (s->flags & SF_REDIRECTABLE))
Willy Tarreau8f128b42014-11-28 15:07:47 +01002328 http_perform_server_redirect(s, si_b);
2329 } while (si_b->state == SI_ST_ASS);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002330 }
2331
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002332 /* Benchmarks have shown that it's optimal to do a full resync now */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002333 if (si_f->state == SI_ST_DIS || si_b->state == SI_ST_DIS)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002334 goto resync_stream_interface;
2335
Willy Tarreau815a9b22010-07-27 17:15:12 +02002336 /* otherwise we want to check if we need to resync the req buffer or not */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002337 if ((req->flags ^ rqf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002338 goto resync_request;
2339
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002340 /* perform output updates to the response buffer */
Willy Tarreau84455332009-03-15 22:34:05 +01002341
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002342 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002343 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002344 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002345 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002346 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02002347 if (unlikely((!res->analysers || (res->analysers == AN_RES_FLT_END && !(res->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002348 !(res->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
2349 (si_b->state >= SI_ST_EST) &&
2350 (res->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002351 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002352 * attached to it. If any data are left in, we'll permit them to
2353 * move.
2354 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002355 channel_auto_read(res);
2356 channel_auto_close(res);
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002357
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002358 if (IS_HTX_STRM(s)) {
2359 struct htx *htx = htxbuf(&res->buf);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002360
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002361 /* We'll let data flow between the producer (if still connected)
2362 * to the consumer.
2363 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002364 co_set_data(res, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002365 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002366 channel_htx_forward_forever(res, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002367 }
2368 else {
2369 /* We'll let data flow between the producer (if still connected)
2370 * to the consumer.
2371 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002372 c_adv(res, ci_data(res));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002373 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2374 channel_forward_forever(res);
2375
2376 /* Just in order to support fetching HTTP contents after start
2377 * of forwarding when the HTTP forwarding analyser is not used,
2378 * we simply reset msg->sov so that HTTP rewinding points to the
2379 * headers.
2380 */
Olivier Houchard1909f6d2018-12-06 13:28:30 +01002381 if (s->txn)
2382 s->txn->rsp.sov = s->txn->rsp.eoh + s->txn->rsp.eol - co_data(res);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002383 }
Willy Tarreau42529c32015-07-09 18:38:57 +02002384
Willy Tarreauce887fd2012-05-12 12:50:00 +02002385 /* if we have no analyser anymore in any direction and have a
Willy Tarreau05cdd962014-05-10 14:30:07 +02002386 * tunnel timeout set, use it now. Note that we must respect
2387 * the half-closed timeouts as well.
Willy Tarreauce887fd2012-05-12 12:50:00 +02002388 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002389 if (!req->analysers && s->be->timeout.tunnel) {
2390 req->rto = req->wto = res->rto = res->wto =
Willy Tarreauce887fd2012-05-12 12:50:00 +02002391 s->be->timeout.tunnel;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002392
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002393 if ((req->flags & CF_SHUTR) && tick_isset(sess->fe->timeout.clientfin))
2394 res->wto = sess->fe->timeout.clientfin;
Willy Tarreau8f128b42014-11-28 15:07:47 +01002395 if ((req->flags & CF_SHUTW) && tick_isset(s->be->timeout.serverfin))
2396 res->rto = s->be->timeout.serverfin;
2397 if ((res->flags & CF_SHUTR) && tick_isset(s->be->timeout.serverfin))
2398 req->wto = s->be->timeout.serverfin;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002399 if ((res->flags & CF_SHUTW) && tick_isset(sess->fe->timeout.clientfin))
2400 req->rto = sess->fe->timeout.clientfin;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002401
Willy Tarreau8f128b42014-11-28 15:07:47 +01002402 req->rex = tick_add(now_ms, req->rto);
2403 req->wex = tick_add(now_ms, req->wto);
2404 res->rex = tick_add(now_ms, res->rto);
2405 res->wex = tick_add(now_ms, res->wto);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002406 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002407 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002408
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002409 /* check if it is wise to enable kernel splicing to forward response data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002410 if (!(res->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2411 res->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002412 (global.tune.options & GTUNE_USE_SPLICE) &&
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002413 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->snd_pipe) &&
2414 (objt_cs(si_b->end) && __objt_cs(si_b->end)->conn->xprt && __objt_cs(si_b->end)->conn->xprt->rcv_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002415 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002416 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_RTR) ||
2417 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002418 (res->flags & CF_STREAMER_FAST)))) {
2419 res->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002420 }
2421
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002422 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002423 rpf_last = res->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002424
2425 /*
2426 * Now forward all shutdown requests between both sides of the buffer
2427 */
2428
2429 /*
2430 * FIXME: this is probably where we should produce error responses.
2431 */
2432
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002433 /* first, let's check if the response buffer needs to shutdown(write) */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002434 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau05cdd962014-05-10 14:30:07 +02002435 (CF_AUTO_CLOSE|CF_SHUTR))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002436 channel_shutw_now(res);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002437 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002438
2439 /* shutdown(write) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002440 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2441 channel_is_empty(res))) {
2442 si_shutw(si_f);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002443 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002444
2445 /* shutdown(write) done on the client side, we must stop the server too */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002446 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW) &&
2447 !res->analysers)
2448 channel_shutr_now(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002449
2450 /* shutdown(read) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002451 if (unlikely((res->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2452 if (si_b->flags & SI_FL_NOHALF)
2453 si_b->flags |= SI_FL_NOLINGER;
2454 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002455 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002456
Willy Tarreau8f128b42014-11-28 15:07:47 +01002457 if (si_f->state == SI_ST_DIS || si_b->state == SI_ST_DIS)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002458 goto resync_stream_interface;
2459
Willy Tarreau8f128b42014-11-28 15:07:47 +01002460 if (req->flags != rqf_last)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002461 goto resync_request;
2462
Willy Tarreau8f128b42014-11-28 15:07:47 +01002463 if ((res->flags ^ rpf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002464 goto resync_response;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002465
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002466 /* we're interested in getting wakeups again */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002467 si_f->flags &= ~SI_FL_DONT_WAKE;
2468 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002469
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002470 /* This is needed only when debugging is enabled, to indicate
2471 * client-side or server-side close. Please note that in the unlikely
2472 * event where both sides would close at once, the sequence is reported
2473 * on the server side first.
2474 */
2475 if (unlikely((global.mode & MODE_DEBUG) &&
2476 (!(global.mode & MODE_QUIET) ||
2477 (global.mode & MODE_VERBOSE)))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002478 if (si_b->state == SI_ST_CLO &&
2479 si_b->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002480 chunk_printf(&trash, "%08x:%s.srvcls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002481 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002482 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2483 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002484 shut_your_big_mouth_gcc(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002485 }
2486
Willy Tarreau8f128b42014-11-28 15:07:47 +01002487 if (si_f->state == SI_ST_CLO &&
2488 si_f->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002489 chunk_printf(&trash, "%08x:%s.clicls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002490 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002491 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2492 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002493 shut_your_big_mouth_gcc(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002494 }
2495 }
2496
Willy Tarreau8f128b42014-11-28 15:07:47 +01002497 if (likely((si_f->state != SI_ST_CLO) ||
2498 (si_b->state > SI_ST_INI && si_b->state < SI_ST_CLO))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002499
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002500 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED))
Willy Tarreau87b09662015-04-03 00:22:06 +02002501 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002502
Willy Tarreaud14844a2018-11-08 18:15:29 +01002503 si_update_both(si_f, si_b);
Olivier Houchard53216e72018-10-10 15:46:36 +02002504
Willy Tarreaubf89ff32018-11-09 14:59:25 +01002505 if (si_f->state == SI_ST_DIS || si_f->state != si_f->prev_state ||
2506 si_b->state == SI_ST_DIS || si_b->state != si_b->prev_state ||
Willy Tarreau64f69452019-01-23 15:18:19 +01002507 ((si_f->flags | si_b->flags) & SI_FL_ERR) ||
Willy Tarreau85f89012018-10-25 11:06:57 +02002508 (((req->flags ^ rqf_last) | (res->flags ^ rpf_last)) & CF_MASK_ANALYSER))
Olivier Houchard53216e72018-10-10 15:46:36 +02002509 goto redo;
2510
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002511 /* Trick: if a request is being waiting for the server to respond,
2512 * and if we know the server can timeout, we don't want the timeout
2513 * to expire on the client side first, but we're still interested
2514 * in passing data from the client to the server (eg: POST). Thus,
2515 * we can cancel the client's request timeout if the server's
2516 * request timeout is set and the server has not yet sent a response.
2517 */
2518
Willy Tarreau8f128b42014-11-28 15:07:47 +01002519 if ((res->flags & (CF_AUTO_CLOSE|CF_SHUTR)) == 0 &&
2520 (tick_isset(req->wex) || tick_isset(res->rex))) {
2521 req->flags |= CF_READ_NOEXP;
2522 req->rex = TICK_ETERNITY;
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002523 }
2524
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002525 /* Reset pending events now */
2526 s->pending_events = 0;
2527
Willy Tarreau798f4322012-11-08 14:49:17 +01002528 update_exp_and_leave:
Willy Tarreau5fb04712016-05-04 10:18:37 +02002529 /* Note: please ensure that if you branch here you disable SI_FL_DONT_WAKE */
Christopher Fauleta00d8172016-11-10 14:58:05 +01002530 t->expire = tick_first((tick_is_expired(t->expire, now_ms) ? 0 : t->expire),
2531 tick_first(tick_first(req->rex, req->wex),
2532 tick_first(res->rex, res->wex)));
Willy Tarreaudef0d222016-11-08 22:03:00 +01002533 if (!req->analysers)
2534 req->analyse_exp = TICK_ETERNITY;
2535
2536 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED) &&
2537 (!tick_isset(req->analyse_exp) || tick_is_expired(req->analyse_exp, now_ms)))
2538 req->analyse_exp = tick_add(now_ms, 5000);
2539
2540 t->expire = tick_first(t->expire, req->analyse_exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002541
Willy Tarreau9a398be2017-11-10 17:14:23 +01002542 t->expire = tick_first(t->expire, res->analyse_exp);
2543
Willy Tarreau8f128b42014-11-28 15:07:47 +01002544 if (si_f->exp)
2545 t->expire = tick_first(t->expire, si_f->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002546
Willy Tarreau8f128b42014-11-28 15:07:47 +01002547 if (si_b->exp)
2548 t->expire = tick_first(t->expire, si_b->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002549
Christopher Faulet56803b12017-11-24 16:06:18 +01002550 DPRINTF(stderr,
Willy Tarreau127334e2009-03-28 10:47:26 +01002551 "[%u] queuing with exp=%u req->rex=%u req->wex=%u req->ana_exp=%u"
2552 " 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 +01002553 now_ms, t->expire, req->rex, req->wex, req->analyse_exp,
2554 res->rex, res->wex, si_f->exp, si_b->exp, si_f->state, si_b->state);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002555
2556#ifdef DEBUG_DEV
2557 /* this may only happen when no timeout is set or in case of an FSM bug */
Willy Tarreaud0a201b2009-03-08 15:53:06 +01002558 if (!tick_isset(t->expire))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002559 ABORT_NOW();
2560#endif
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002561 s->pending_events &= ~(TASK_WOKEN_TIMER | TASK_WOKEN_RES);
Willy Tarreau87b09662015-04-03 00:22:06 +02002562 stream_release_buffers(s);
Olivier Houchardc2aa7112018-09-11 18:27:21 +02002563 /* We may have free'd some space in buffers, or have more to send/recv, try again */
Willy Tarreau26c25062009-03-08 09:38:41 +01002564 return t; /* nothing more to do */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002565 }
2566
Willy Tarreaue7dff022015-04-03 01:14:29 +02002567 if (s->flags & SF_BE_ASSIGNED)
Christopher Fauletff8abcd2017-06-02 15:33:24 +02002568 HA_ATOMIC_SUB(&s->be->beconn, 1);
Willy Tarreau6f5e4b92017-09-15 09:07:56 +02002569
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002570 if (unlikely((global.mode & MODE_DEBUG) &&
2571 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)))) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002572 chunk_printf(&trash, "%08x:%s.closed[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002573 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002574 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2575 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002576 shut_your_big_mouth_gcc(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002577 }
2578
2579 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau87b09662015-04-03 00:22:06 +02002580 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002581
Willy Tarreaueee5b512015-04-03 23:46:31 +02002582 if (s->txn && s->txn->status) {
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002583 int n;
2584
Willy Tarreaueee5b512015-04-03 23:46:31 +02002585 n = s->txn->status / 100;
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002586 if (n < 1 || n > 5)
2587 n = 0;
2588
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002589 if (sess->fe->mode == PR_MODE_HTTP) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +02002590 HA_ATOMIC_ADD(&sess->fe->fe_counters.p.http.rsp[n], 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002591 }
Willy Tarreaue7dff022015-04-03 01:14:29 +02002592 if ((s->flags & SF_BE_ASSIGNED) &&
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002593 (s->be->mode == PR_MODE_HTTP)) {
Christopher Fauletff8abcd2017-06-02 15:33:24 +02002594 HA_ATOMIC_ADD(&s->be->be_counters.p.http.rsp[n], 1);
2595 HA_ATOMIC_ADD(&s->be->be_counters.p.http.cum_req, 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002596 }
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002597 }
2598
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002599 /* let's do a final log if we need it */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002600 if (!LIST_ISEMPTY(&sess->fe->logformat) && s->logs.logwait &&
Willy Tarreaue7dff022015-04-03 01:14:29 +02002601 !(s->flags & SF_MONITOR) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002602 (!(sess->fe->options & PR_O_NULLNOLOG) || req->total)) {
Willy Tarreau66425e32018-07-25 06:55:12 +02002603 /* we may need to know the position in the queue */
2604 pendconn_free(s);
Willy Tarreaua5555ec2008-11-30 19:02:32 +01002605 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002606 }
2607
Willy Tarreau87b09662015-04-03 00:22:06 +02002608 /* update time stats for this stream */
2609 stream_update_time_stats(s);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002610
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002611 /* the task MUST not be in the run queue anymore */
Willy Tarreau87b09662015-04-03 00:22:06 +02002612 stream_free(s);
Willy Tarreau26c25062009-03-08 09:38:41 +01002613 task_delete(t);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002614 task_free(t);
Willy Tarreau26c25062009-03-08 09:38:41 +01002615 return NULL;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002616}
2617
Willy Tarreau87b09662015-04-03 00:22:06 +02002618/* Update the stream's backend and server time stats */
2619void stream_update_time_stats(struct stream *s)
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002620{
2621 int t_request;
2622 int t_queue;
2623 int t_connect;
2624 int t_data;
2625 int t_close;
2626 struct server *srv;
2627
2628 t_request = 0;
2629 t_queue = s->logs.t_queue;
2630 t_connect = s->logs.t_connect;
2631 t_close = s->logs.t_close;
2632 t_data = s->logs.t_data;
2633
2634 if (s->be->mode != PR_MODE_HTTP)
2635 t_data = t_connect;
2636
2637 if (t_connect < 0 || t_data < 0)
2638 return;
2639
2640 if (tv_isge(&s->logs.tv_request, &s->logs.tv_accept))
2641 t_request = tv_ms_elapsed(&s->logs.tv_accept, &s->logs.tv_request);
2642
2643 t_data -= t_connect;
2644 t_connect -= t_queue;
2645 t_queue -= t_request;
2646
2647 srv = objt_server(s->target);
2648 if (srv) {
2649 swrate_add(&srv->counters.q_time, TIME_STATS_SAMPLES, t_queue);
2650 swrate_add(&srv->counters.c_time, TIME_STATS_SAMPLES, t_connect);
2651 swrate_add(&srv->counters.d_time, TIME_STATS_SAMPLES, t_data);
2652 swrate_add(&srv->counters.t_time, TIME_STATS_SAMPLES, t_close);
2653 }
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002654 HA_SPIN_LOCK(PROXY_LOCK, &s->be->lock);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002655 swrate_add(&s->be->be_counters.q_time, TIME_STATS_SAMPLES, t_queue);
2656 swrate_add(&s->be->be_counters.c_time, TIME_STATS_SAMPLES, t_connect);
2657 swrate_add(&s->be->be_counters.d_time, TIME_STATS_SAMPLES, t_data);
2658 swrate_add(&s->be->be_counters.t_time, TIME_STATS_SAMPLES, t_close);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002659 HA_SPIN_UNLOCK(PROXY_LOCK, &s->be->lock);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002660}
2661
Willy Tarreau7c669d72008-06-20 15:04:11 +02002662/*
2663 * This function adjusts sess->srv_conn and maintains the previous and new
Willy Tarreau87b09662015-04-03 00:22:06 +02002664 * server's served stream counts. Setting newsrv to NULL is enough to release
Willy Tarreau7c669d72008-06-20 15:04:11 +02002665 * current connection slot. This function also notifies any LB algo which might
Willy Tarreau87b09662015-04-03 00:22:06 +02002666 * expect to be informed about any change in the number of active streams on a
Willy Tarreau7c669d72008-06-20 15:04:11 +02002667 * server.
2668 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002669void sess_change_server(struct stream *sess, struct server *newsrv)
Willy Tarreau7c669d72008-06-20 15:04:11 +02002670{
2671 if (sess->srv_conn == newsrv)
2672 return;
2673
2674 if (sess->srv_conn) {
Christopher Faulet29f77e82017-06-08 14:04:45 +02002675 HA_ATOMIC_SUB(&sess->srv_conn->served, 1);
Christopher Fauletff8abcd2017-06-02 15:33:24 +02002676 HA_ATOMIC_SUB(&sess->srv_conn->proxy->served, 1);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002677 if (sess->srv_conn->proxy->lbprm.server_drop_conn)
2678 sess->srv_conn->proxy->lbprm.server_drop_conn(sess->srv_conn);
Willy Tarreau87b09662015-04-03 00:22:06 +02002679 stream_del_srv_conn(sess);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002680 }
2681
2682 if (newsrv) {
Christopher Faulet29f77e82017-06-08 14:04:45 +02002683 HA_ATOMIC_ADD(&newsrv->served, 1);
Christopher Fauletff8abcd2017-06-02 15:33:24 +02002684 HA_ATOMIC_ADD(&newsrv->proxy->served, 1);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002685 if (newsrv->proxy->lbprm.server_take_conn)
2686 newsrv->proxy->lbprm.server_take_conn(newsrv);
Willy Tarreau87b09662015-04-03 00:22:06 +02002687 stream_add_srv_conn(sess, newsrv);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002688 }
2689}
2690
Willy Tarreau84455332009-03-15 22:34:05 +01002691/* Handle server-side errors for default protocols. It is called whenever a a
2692 * connection setup is aborted or a request is aborted in queue. It sets the
Willy Tarreau87b09662015-04-03 00:22:06 +02002693 * stream termination flags so that the caller does not have to worry about
Willy Tarreau84455332009-03-15 22:34:05 +01002694 * them. It's installed as ->srv_error for the server-side stream_interface.
2695 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002696void default_srv_error(struct stream *s, struct stream_interface *si)
Willy Tarreau84455332009-03-15 22:34:05 +01002697{
2698 int err_type = si->err_type;
2699 int err = 0, fin = 0;
2700
2701 if (err_type & SI_ET_QUEUE_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002702 err = SF_ERR_CLICL;
2703 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002704 }
2705 else if (err_type & SI_ET_CONN_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002706 err = SF_ERR_CLICL;
2707 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002708 }
2709 else if (err_type & SI_ET_QUEUE_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002710 err = SF_ERR_SRVTO;
2711 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002712 }
2713 else if (err_type & SI_ET_QUEUE_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002714 err = SF_ERR_SRVCL;
2715 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002716 }
2717 else if (err_type & SI_ET_CONN_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002718 err = SF_ERR_SRVTO;
2719 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002720 }
2721 else if (err_type & SI_ET_CONN_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002722 err = SF_ERR_SRVCL;
2723 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002724 }
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002725 else if (err_type & SI_ET_CONN_RES) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002726 err = SF_ERR_RESOURCE;
2727 fin = SF_FINST_C;
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002728 }
Willy Tarreau84455332009-03-15 22:34:05 +01002729 else /* SI_ET_CONN_OTHER and others */ {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002730 err = SF_ERR_INTERNAL;
2731 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002732 }
2733
Willy Tarreaue7dff022015-04-03 01:14:29 +02002734 if (!(s->flags & SF_ERR_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002735 s->flags |= err;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002736 if (!(s->flags & SF_FINST_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002737 s->flags |= fin;
2738}
Willy Tarreau7c669d72008-06-20 15:04:11 +02002739
Willy Tarreaue7dff022015-04-03 01:14:29 +02002740/* kill a stream and set the termination flags to <why> (one of SF_ERR_*) */
Willy Tarreau87b09662015-04-03 00:22:06 +02002741void stream_shutdown(struct stream *stream, int why)
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002742{
Willy Tarreau87b09662015-04-03 00:22:06 +02002743 if (stream->req.flags & (CF_SHUTW|CF_SHUTW_NOW))
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002744 return;
2745
Willy Tarreau87b09662015-04-03 00:22:06 +02002746 channel_shutw_now(&stream->req);
2747 channel_shutr_now(&stream->res);
2748 stream->task->nice = 1024;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002749 if (!(stream->flags & SF_ERR_MASK))
Willy Tarreau87b09662015-04-03 00:22:06 +02002750 stream->flags |= why;
2751 task_wakeup(stream->task, TASK_WOKEN_OTHER);
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002752}
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02002753
Willy Tarreau8b22a712010-06-18 17:46:06 +02002754/************************************************************************/
2755/* All supported ACL keywords must be declared here. */
2756/************************************************************************/
2757
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02002758/* 0=OK, <0=Alert, >0=Warning */
2759static enum act_parse_ret stream_parse_use_service(const char **args, int *cur_arg,
2760 struct proxy *px, struct act_rule *rule,
2761 char **err)
2762{
2763 struct action_kw *kw;
2764
2765 /* Check if the service name exists. */
2766 if (*(args[*cur_arg]) == 0) {
2767 memprintf(err, "'%s' expects a service name.", args[0]);
Thierry FOURNIER337eae12015-11-26 19:48:04 +01002768 return ACT_RET_PRS_ERR;
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02002769 }
2770
2771 /* lookup for keyword corresponding to a service. */
2772 kw = action_lookup(&service_keywords, args[*cur_arg]);
2773 if (!kw) {
2774 memprintf(err, "'%s' unknown service name.", args[1]);
2775 return ACT_RET_PRS_ERR;
2776 }
2777 (*cur_arg)++;
2778
2779 /* executes specific rule parser. */
2780 rule->kw = kw;
2781 if (kw->parse((const char **)args, cur_arg, px, rule, err) == ACT_RET_PRS_ERR)
2782 return ACT_RET_PRS_ERR;
2783
2784 /* Register processing function. */
2785 rule->action_ptr = process_use_service;
2786 rule->action = ACT_CUSTOM;
2787
2788 return ACT_RET_PRS_OK;
2789}
2790
2791void service_keywords_register(struct action_kw_list *kw_list)
2792{
2793 LIST_ADDQ(&service_keywords, &kw_list->list);
2794}
2795
William Lallemand4c5b4d52016-11-21 08:51:11 +01002796
2797/* This function dumps a complete stream state onto the stream interface's
2798 * read buffer. The stream has to be set in strm. It returns 0 if the output
2799 * buffer is full and it needs to be called again, otherwise non-zero. It is
2800 * designed to be called from stats_dump_strm_to_buffer() below.
2801 */
2802static int stats_dump_full_strm_to_buffer(struct stream_interface *si, struct stream *strm)
2803{
2804 struct appctx *appctx = __objt_appctx(si->end);
2805 struct tm tm;
2806 extern const char *monthname[12];
2807 char pn[INET6_ADDRSTRLEN];
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002808 struct conn_stream *cs;
William Lallemand4c5b4d52016-11-21 08:51:11 +01002809 struct connection *conn;
2810 struct appctx *tmpctx;
2811
2812 chunk_reset(&trash);
2813
2814 if (appctx->ctx.sess.section > 0 && appctx->ctx.sess.uid != strm->uniq_id) {
2815 /* stream changed, no need to go any further */
2816 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
Willy Tarreaue6e52362019-01-04 17:42:57 +01002817 if (ci_putchk(si_ic(si), &trash) == -1)
2818 goto full;
2819 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01002820 }
2821
2822 switch (appctx->ctx.sess.section) {
2823 case 0: /* main status of the stream */
2824 appctx->ctx.sess.uid = strm->uniq_id;
2825 appctx->ctx.sess.section = 1;
2826 /* fall through */
2827
2828 case 1:
2829 get_localtime(strm->logs.accept_date.tv_sec, &tm);
2830 chunk_appendf(&trash,
2831 "%p: [%02d/%s/%04d:%02d:%02d:%02d.%06d] id=%u proto=%s",
2832 strm,
2833 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
2834 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(strm->logs.accept_date.tv_usec),
2835 strm->uniq_id,
2836 strm_li(strm) ? strm_li(strm)->proto->name : "?");
2837
2838 conn = objt_conn(strm_orig(strm));
2839 switch (conn ? addr_to_str(&conn->addr.from, pn, sizeof(pn)) : AF_UNSPEC) {
2840 case AF_INET:
2841 case AF_INET6:
2842 chunk_appendf(&trash, " source=%s:%d\n",
2843 pn, get_host_port(&conn->addr.from));
2844 break;
2845 case AF_UNIX:
2846 chunk_appendf(&trash, " source=unix:%d\n", strm_li(strm)->luid);
2847 break;
2848 default:
2849 /* no more information to print right now */
2850 chunk_appendf(&trash, "\n");
2851 break;
2852 }
2853
2854 chunk_appendf(&trash,
Willy Tarreauadf7a152019-01-07 10:10:07 +01002855 " flags=0x%x, conn_retries=%d, srv_conn=%p, pend_pos=%p waiting=%d\n",
2856 strm->flags, strm->si[1].conn_retries, strm->srv_conn, strm->pend_pos,
2857 !LIST_ISEMPTY(&strm->buffer_wait.list));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002858
2859 chunk_appendf(&trash,
2860 " frontend=%s (id=%u mode=%s), listener=%s (id=%u)",
2861 strm_fe(strm)->id, strm_fe(strm)->uuid, strm_fe(strm)->mode ? "http" : "tcp",
2862 strm_li(strm) ? strm_li(strm)->name ? strm_li(strm)->name : "?" : "?",
2863 strm_li(strm) ? strm_li(strm)->luid : 0);
2864
2865 if (conn)
2866 conn_get_to_addr(conn);
2867
2868 switch (conn ? addr_to_str(&conn->addr.to, pn, sizeof(pn)) : AF_UNSPEC) {
2869 case AF_INET:
2870 case AF_INET6:
2871 chunk_appendf(&trash, " addr=%s:%d\n",
2872 pn, get_host_port(&conn->addr.to));
2873 break;
2874 case AF_UNIX:
2875 chunk_appendf(&trash, " addr=unix:%d\n", strm_li(strm)->luid);
2876 break;
2877 default:
2878 /* no more information to print right now */
2879 chunk_appendf(&trash, "\n");
2880 break;
2881 }
2882
2883 if (strm->be->cap & PR_CAP_BE)
2884 chunk_appendf(&trash,
2885 " backend=%s (id=%u mode=%s)",
2886 strm->be->id,
2887 strm->be->uuid, strm->be->mode ? "http" : "tcp");
2888 else
2889 chunk_appendf(&trash, " backend=<NONE> (id=-1 mode=-)");
2890
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002891 cs = objt_cs(strm->si[1].end);
2892 conn = cs_conn(cs);
2893
William Lallemand4c5b4d52016-11-21 08:51:11 +01002894 if (conn)
2895 conn_get_from_addr(conn);
2896
2897 switch (conn ? addr_to_str(&conn->addr.from, pn, sizeof(pn)) : AF_UNSPEC) {
2898 case AF_INET:
2899 case AF_INET6:
2900 chunk_appendf(&trash, " addr=%s:%d\n",
2901 pn, get_host_port(&conn->addr.from));
2902 break;
2903 case AF_UNIX:
2904 chunk_appendf(&trash, " addr=unix\n");
2905 break;
2906 default:
2907 /* no more information to print right now */
2908 chunk_appendf(&trash, "\n");
2909 break;
2910 }
2911
2912 if (strm->be->cap & PR_CAP_BE)
2913 chunk_appendf(&trash,
2914 " server=%s (id=%u)",
2915 objt_server(strm->target) ? objt_server(strm->target)->id : "<none>",
2916 objt_server(strm->target) ? objt_server(strm->target)->puid : 0);
2917 else
2918 chunk_appendf(&trash, " server=<NONE> (id=-1)");
2919
2920 if (conn)
2921 conn_get_to_addr(conn);
2922
2923 switch (conn ? addr_to_str(&conn->addr.to, pn, sizeof(pn)) : AF_UNSPEC) {
2924 case AF_INET:
2925 case AF_INET6:
2926 chunk_appendf(&trash, " addr=%s:%d\n",
2927 pn, get_host_port(&conn->addr.to));
2928 break;
2929 case AF_UNIX:
2930 chunk_appendf(&trash, " addr=unix\n");
2931 break;
2932 default:
2933 /* no more information to print right now */
2934 chunk_appendf(&trash, "\n");
2935 break;
2936 }
2937
2938 chunk_appendf(&trash,
Christopher Fauletf0205062017-11-15 20:56:43 +01002939 " task=%p (state=0x%02x nice=%d calls=%d exp=%s tmask=0x%lx%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002940 strm->task,
2941 strm->task->state,
2942 strm->task->nice, strm->task->calls,
2943 strm->task->expire ?
2944 tick_is_expired(strm->task->expire, now_ms) ? "<PAST>" :
2945 human_time(TICKS_TO_MS(strm->task->expire - now_ms),
2946 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Fauletf0205062017-11-15 20:56:43 +01002947 strm->task->thread_mask,
William Lallemand4c5b4d52016-11-21 08:51:11 +01002948 task_in_rq(strm->task) ? ", running" : "");
2949
2950 chunk_appendf(&trash,
2951 " age=%s)\n",
2952 human_time(now.tv_sec - strm->logs.accept_date.tv_sec, 1));
2953
2954 if (strm->txn)
2955 chunk_appendf(&trash,
Willy Tarreau7778b592019-01-07 10:38:10 +01002956 " txn=%p flags=0x%x meth=%d status=%d req.st=%s rsp.st=%s\n"
2957 " req.f=0x%02x blen=%llu chnk=%llu next=%u\n"
2958 " rsp.f=0x%02x blen=%llu chnk=%llu next=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002959 strm->txn, strm->txn->flags, strm->txn->meth, strm->txn->status,
Willy Tarreau7778b592019-01-07 10:38:10 +01002960 h1_msg_state_str(strm->txn->req.msg_state), h1_msg_state_str(strm->txn->rsp.msg_state),
2961 strm->txn->req.flags, strm->txn->req.body_len, strm->txn->req.chunk_len, strm->txn->req.next,
2962 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 +01002963
2964 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01002965 " 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 +01002966 &strm->si[0],
2967 si_state_str(strm->si[0].state),
2968 strm->si[0].flags,
2969 obj_type_name(strm->si[0].end),
2970 obj_base_ptr(strm->si[0].end),
2971 strm->si[0].exp ?
2972 tick_is_expired(strm->si[0].exp, now_ms) ? "<PAST>" :
2973 human_time(TICKS_TO_MS(strm->si[0].exp - now_ms),
2974 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01002975 strm->si[0].err_type, strm->si[0].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002976
2977 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01002978 " 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 +01002979 &strm->si[1],
2980 si_state_str(strm->si[1].state),
2981 strm->si[1].flags,
2982 obj_type_name(strm->si[1].end),
2983 obj_base_ptr(strm->si[1].end),
2984 strm->si[1].exp ?
2985 tick_is_expired(strm->si[1].exp, now_ms) ? "<PAST>" :
2986 human_time(TICKS_TO_MS(strm->si[1].exp - now_ms),
2987 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01002988 strm->si[1].err_type, strm->si[1].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002989
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002990 if ((cs = objt_cs(strm->si[0].end)) != NULL) {
2991 conn = cs->conn;
2992
William Lallemand4c5b4d52016-11-21 08:51:11 +01002993 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02002994 " co0=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002995 conn,
2996 conn_get_ctrl_name(conn),
2997 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02002998 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002999 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003000 obj_type_name(conn->target),
3001 obj_base_ptr(conn->target));
3002
3003 chunk_appendf(&trash,
Christopher Fauletf0205062017-11-15 20:56:43 +01003004 " 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 +01003005 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003006 conn->handle.fd,
3007 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Olivier Houchard12568362018-01-31 18:07:29 +01003008 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].cache.next >= -2 : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01003009 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01003010 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01003011
3012 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003013 }
3014 else if ((tmpctx = objt_appctx(strm->si[0].end)) != NULL) {
3015 chunk_appendf(&trash,
Willy Tarreau9efd7452018-05-31 14:48:54 +02003016 " app0=%p st0=%d st1=%d st2=%d applet=%s tmask=0x%lx nice=%d calls=%u cpu=%llu lat=%llu\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003017 tmpctx,
3018 tmpctx->st0,
3019 tmpctx->st1,
3020 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01003021 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02003022 tmpctx->thread_mask,
Willy Tarreau9efd7452018-05-31 14:48:54 +02003023 tmpctx->t->nice, tmpctx->t->calls,
3024 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003025 }
3026
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003027 if ((cs = objt_cs(strm->si[1].end)) != NULL) {
3028 conn = cs->conn;
3029
William Lallemand4c5b4d52016-11-21 08:51:11 +01003030 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02003031 " co1=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003032 conn,
3033 conn_get_ctrl_name(conn),
3034 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02003035 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003036 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003037 obj_type_name(conn->target),
3038 obj_base_ptr(conn->target));
3039
3040 chunk_appendf(&trash,
Christopher Fauletf0205062017-11-15 20:56:43 +01003041 " 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 +01003042 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003043 conn->handle.fd,
3044 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Olivier Houchard12568362018-01-31 18:07:29 +01003045 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].cache.next >= -2 : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01003046 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01003047 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01003048
3049 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003050 }
3051 else if ((tmpctx = objt_appctx(strm->si[1].end)) != NULL) {
3052 chunk_appendf(&trash,
Willy Tarreau9efd7452018-05-31 14:48:54 +02003053 " app1=%p st0=%d st1=%d st2=%d applet=%s tmask=0x%lx, nice=%d, calls=%u, cpu=%llu, lat=%llu\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003054 tmpctx,
3055 tmpctx->st0,
3056 tmpctx->st1,
3057 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01003058 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02003059 tmpctx->thread_mask,
Willy Tarreau9efd7452018-05-31 14:48:54 +02003060 tmpctx->t->nice, tmpctx->t->calls,
3061 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003062 }
3063
3064 chunk_appendf(&trash,
3065 " req=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
3066 " an_exp=%s",
3067 &strm->req,
3068 strm->req.flags, strm->req.analysers,
3069 strm->req.pipe ? strm->req.pipe->data : 0,
3070 strm->req.to_forward, strm->req.total,
3071 strm->req.analyse_exp ?
3072 human_time(TICKS_TO_MS(strm->req.analyse_exp - now_ms),
3073 TICKS_TO_MS(1000)) : "<NEVER>");
3074
3075 chunk_appendf(&trash,
3076 " rex=%s",
3077 strm->req.rex ?
3078 human_time(TICKS_TO_MS(strm->req.rex - now_ms),
3079 TICKS_TO_MS(1000)) : "<NEVER>");
3080
3081 chunk_appendf(&trash,
3082 " wex=%s\n"
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003083 " buf=%p data=%p o=%u p=%u req.next=%d i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003084 strm->req.wex ?
3085 human_time(TICKS_TO_MS(strm->req.wex - now_ms),
3086 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003087 &strm->req.buf,
3088 b_orig(&strm->req.buf), (unsigned int)co_data(&strm->req),
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003089 (unsigned int)ci_head_ofs(&strm->req),
Willy Tarreau591d4452018-06-15 17:21:00 +02003090 strm->txn ? strm->txn->req.next : 0, (unsigned int)ci_data(&strm->req),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003091 (unsigned int)strm->req.buf.size);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003092
Christopher Fauletb9af8812019-01-04 14:30:44 +01003093 if (IS_HTX_STRM(strm)) {
3094 struct htx *htx = htxbuf(&strm->req.buf);
3095
3096 chunk_appendf(&trash,
Willy Tarreaub84e67f2019-01-07 10:01:34 +01003097 " htx=%p flags=0x%x size=%u data=%u used=%u wrap=%s extra=%llu\n",
3098 htx, htx->flags, htx->size, htx->data, htx->used,
Christopher Fauletb9af8812019-01-04 14:30:44 +01003099 (!htx->used || htx->tail+1 == htx->wrap) ? "NO" : "YES",
3100 (unsigned long long)htx->extra);
3101 }
3102
William Lallemand4c5b4d52016-11-21 08:51:11 +01003103 chunk_appendf(&trash,
3104 " res=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
3105 " an_exp=%s",
3106 &strm->res,
3107 strm->res.flags, strm->res.analysers,
3108 strm->res.pipe ? strm->res.pipe->data : 0,
3109 strm->res.to_forward, strm->res.total,
3110 strm->res.analyse_exp ?
3111 human_time(TICKS_TO_MS(strm->res.analyse_exp - now_ms),
3112 TICKS_TO_MS(1000)) : "<NEVER>");
3113
3114 chunk_appendf(&trash,
3115 " rex=%s",
3116 strm->res.rex ?
3117 human_time(TICKS_TO_MS(strm->res.rex - now_ms),
3118 TICKS_TO_MS(1000)) : "<NEVER>");
3119
3120 chunk_appendf(&trash,
3121 " wex=%s\n"
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003122 " buf=%p data=%p o=%u p=%u rsp.next=%d i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003123 strm->res.wex ?
3124 human_time(TICKS_TO_MS(strm->res.wex - now_ms),
3125 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003126 &strm->res.buf,
3127 b_orig(&strm->res.buf), (unsigned int)co_data(&strm->res),
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003128 (unsigned int)ci_head_ofs(&strm->res),
Willy Tarreau591d4452018-06-15 17:21:00 +02003129 strm->txn ? strm->txn->rsp.next : 0, (unsigned int)ci_data(&strm->res),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003130 (unsigned int)strm->res.buf.size);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003131
Christopher Fauletb9af8812019-01-04 14:30:44 +01003132 if (IS_HTX_STRM(strm)) {
3133 struct htx *htx = htxbuf(&strm->res.buf);
3134
3135 chunk_appendf(&trash,
3136 " htx=%p flags=0x%x size=%u data=%u used=%u wrap=%s extra=%llu\n",
3137 htx, htx->flags, htx->size, htx->data, htx->used,
3138 (!htx->used || htx->tail+1 == htx->wrap) ? "NO" : "YES",
3139 (unsigned long long)htx->extra);
3140 }
3141
Willy Tarreaue6e52362019-01-04 17:42:57 +01003142 if (ci_putchk(si_ic(si), &trash) == -1)
3143 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003144
3145 /* use other states to dump the contents */
3146 }
3147 /* end of dump */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003148 done:
William Lallemand4c5b4d52016-11-21 08:51:11 +01003149 appctx->ctx.sess.uid = 0;
3150 appctx->ctx.sess.section = 0;
3151 return 1;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003152 full:
3153 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003154}
3155
3156
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003157static int cli_parse_show_sess(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemand4c5b4d52016-11-21 08:51:11 +01003158{
William Lallemand4c5b4d52016-11-21 08:51:11 +01003159 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
3160 return 1;
3161
3162 if (*args[2] && strcmp(args[2], "all") == 0)
3163 appctx->ctx.sess.target = (void *)-1;
3164 else if (*args[2])
3165 appctx->ctx.sess.target = (void *)strtoul(args[2], NULL, 0);
3166 else
3167 appctx->ctx.sess.target = NULL;
3168 appctx->ctx.sess.section = 0; /* start with stream status */
3169 appctx->ctx.sess.pos = 0;
3170
3171 return 0;
3172}
3173
3174/* This function dumps all streams' states onto the stream interface's
3175 * read buffer. It returns 0 if the output buffer is full and it needs
Willy Tarreaue6e52362019-01-04 17:42:57 +01003176 * to be called again, otherwise non-zero. It proceeds in an isolated
3177 * thread so there is no thread safety issue here.
William Lallemand4c5b4d52016-11-21 08:51:11 +01003178 */
3179static int cli_io_handler_dump_sess(struct appctx *appctx)
3180{
3181 struct stream_interface *si = appctx->owner;
3182 struct connection *conn;
3183
Willy Tarreaue6e52362019-01-04 17:42:57 +01003184 thread_isolate();
3185
William Lallemand4c5b4d52016-11-21 08:51:11 +01003186 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW))) {
3187 /* If we're forced to shut down, we might have to remove our
3188 * reference to the last stream being dumped.
3189 */
3190 if (appctx->st2 == STAT_ST_LIST) {
3191 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users)) {
3192 LIST_DEL(&appctx->ctx.sess.bref.users);
3193 LIST_INIT(&appctx->ctx.sess.bref.users);
3194 }
3195 }
Willy Tarreaue6e52362019-01-04 17:42:57 +01003196 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003197 }
3198
3199 chunk_reset(&trash);
3200
3201 switch (appctx->st2) {
3202 case STAT_ST_INIT:
3203 /* the function had not been called yet, let's prepare the
3204 * buffer for a response. We initialize the current stream
3205 * pointer to the first in the global list. When a target
3206 * stream is being destroyed, it is responsible for updating
3207 * this pointer. We know we have reached the end when this
3208 * pointer points back to the head of the streams list.
3209 */
3210 LIST_INIT(&appctx->ctx.sess.bref.users);
3211 appctx->ctx.sess.bref.ref = streams.n;
3212 appctx->st2 = STAT_ST_LIST;
3213 /* fall through */
3214
3215 case STAT_ST_LIST:
3216 /* first, let's detach the back-ref from a possible previous stream */
3217 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users)) {
3218 LIST_DEL(&appctx->ctx.sess.bref.users);
3219 LIST_INIT(&appctx->ctx.sess.bref.users);
3220 }
3221
3222 /* and start from where we stopped */
3223 while (appctx->ctx.sess.bref.ref != &streams) {
3224 char pn[INET6_ADDRSTRLEN];
3225 struct stream *curr_strm;
3226
3227 curr_strm = LIST_ELEM(appctx->ctx.sess.bref.ref, struct stream *, list);
3228
3229 if (appctx->ctx.sess.target) {
3230 if (appctx->ctx.sess.target != (void *)-1 && appctx->ctx.sess.target != curr_strm)
3231 goto next_sess;
3232
3233 LIST_ADDQ(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
3234 /* call the proper dump() function and return if we're missing space */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003235 if (!stats_dump_full_strm_to_buffer(si, curr_strm))
3236 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003237
3238 /* stream dump complete */
3239 LIST_DEL(&appctx->ctx.sess.bref.users);
3240 LIST_INIT(&appctx->ctx.sess.bref.users);
3241 if (appctx->ctx.sess.target != (void *)-1) {
3242 appctx->ctx.sess.target = NULL;
3243 break;
3244 }
3245 else
3246 goto next_sess;
3247 }
3248
3249 chunk_appendf(&trash,
3250 "%p: proto=%s",
3251 curr_strm,
3252 strm_li(curr_strm) ? strm_li(curr_strm)->proto->name : "?");
3253
3254 conn = objt_conn(strm_orig(curr_strm));
3255 switch (conn ? addr_to_str(&conn->addr.from, pn, sizeof(pn)) : AF_UNSPEC) {
3256 case AF_INET:
3257 case AF_INET6:
3258 chunk_appendf(&trash,
3259 " src=%s:%d fe=%s be=%s srv=%s",
3260 pn,
3261 get_host_port(&conn->addr.from),
3262 strm_fe(curr_strm)->id,
3263 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
3264 objt_server(curr_strm->target) ? objt_server(curr_strm->target)->id : "<none>"
3265 );
3266 break;
3267 case AF_UNIX:
3268 chunk_appendf(&trash,
3269 " src=unix:%d fe=%s be=%s srv=%s",
3270 strm_li(curr_strm)->luid,
3271 strm_fe(curr_strm)->id,
3272 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
3273 objt_server(curr_strm->target) ? objt_server(curr_strm->target)->id : "<none>"
3274 );
3275 break;
3276 }
3277
3278 chunk_appendf(&trash,
Willy Tarreau9efd7452018-05-31 14:48:54 +02003279 " ts=%02x age=%s calls=%d cpu=%llu lat=%llu",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003280 curr_strm->task->state,
3281 human_time(now.tv_sec - curr_strm->logs.tv_accept.tv_sec, 1),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003282 curr_strm->task->calls,
3283 (unsigned long long)curr_strm->task->cpu_time, (unsigned long long)curr_strm->task->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003284
3285 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003286 " rq[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003287 curr_strm->req.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003288 (unsigned int)ci_data(&curr_strm->req),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003289 curr_strm->req.analysers,
3290 curr_strm->req.rex ?
3291 human_time(TICKS_TO_MS(curr_strm->req.rex - now_ms),
3292 TICKS_TO_MS(1000)) : "");
3293
3294 chunk_appendf(&trash,
3295 ",wx=%s",
3296 curr_strm->req.wex ?
3297 human_time(TICKS_TO_MS(curr_strm->req.wex - now_ms),
3298 TICKS_TO_MS(1000)) : "");
3299
3300 chunk_appendf(&trash,
3301 ",ax=%s]",
3302 curr_strm->req.analyse_exp ?
3303 human_time(TICKS_TO_MS(curr_strm->req.analyse_exp - now_ms),
3304 TICKS_TO_MS(1000)) : "");
3305
3306 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003307 " rp[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003308 curr_strm->res.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003309 (unsigned int)ci_data(&curr_strm->res),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003310 curr_strm->res.analysers,
3311 curr_strm->res.rex ?
3312 human_time(TICKS_TO_MS(curr_strm->res.rex - now_ms),
3313 TICKS_TO_MS(1000)) : "");
3314
3315 chunk_appendf(&trash,
3316 ",wx=%s",
3317 curr_strm->res.wex ?
3318 human_time(TICKS_TO_MS(curr_strm->res.wex - now_ms),
3319 TICKS_TO_MS(1000)) : "");
3320
3321 chunk_appendf(&trash,
3322 ",ax=%s]",
3323 curr_strm->res.analyse_exp ?
3324 human_time(TICKS_TO_MS(curr_strm->res.analyse_exp - now_ms),
3325 TICKS_TO_MS(1000)) : "");
3326
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003327 conn = cs_conn(objt_cs(curr_strm->si[0].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003328 chunk_appendf(&trash,
3329 " s0=[%d,%1xh,fd=%d,ex=%s]",
3330 curr_strm->si[0].state,
3331 curr_strm->si[0].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003332 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003333 curr_strm->si[0].exp ?
3334 human_time(TICKS_TO_MS(curr_strm->si[0].exp - now_ms),
3335 TICKS_TO_MS(1000)) : "");
3336
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003337 conn = cs_conn(objt_cs(curr_strm->si[1].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003338 chunk_appendf(&trash,
3339 " s1=[%d,%1xh,fd=%d,ex=%s]",
3340 curr_strm->si[1].state,
3341 curr_strm->si[1].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003342 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003343 curr_strm->si[1].exp ?
3344 human_time(TICKS_TO_MS(curr_strm->si[1].exp - now_ms),
3345 TICKS_TO_MS(1000)) : "");
3346
3347 chunk_appendf(&trash,
3348 " exp=%s",
3349 curr_strm->task->expire ?
3350 human_time(TICKS_TO_MS(curr_strm->task->expire - now_ms),
3351 TICKS_TO_MS(1000)) : "");
3352 if (task_in_rq(curr_strm->task))
3353 chunk_appendf(&trash, " run(nice=%d)", curr_strm->task->nice);
3354
3355 chunk_appendf(&trash, "\n");
3356
Willy Tarreau06d80a92017-10-19 14:32:15 +02003357 if (ci_putchk(si_ic(si), &trash) == -1) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003358 /* let's try again later from this stream. We add ourselves into
3359 * this stream's users so that it can remove us upon termination.
3360 */
William Lallemand4c5b4d52016-11-21 08:51:11 +01003361 LIST_ADDQ(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
Willy Tarreaue6e52362019-01-04 17:42:57 +01003362 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003363 }
3364
3365 next_sess:
3366 appctx->ctx.sess.bref.ref = curr_strm->list.n;
3367 }
3368
3369 if (appctx->ctx.sess.target && appctx->ctx.sess.target != (void *)-1) {
3370 /* specified stream not found */
3371 if (appctx->ctx.sess.section > 0)
3372 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
3373 else
3374 chunk_appendf(&trash, "Session not found.\n");
3375
Willy Tarreaue6e52362019-01-04 17:42:57 +01003376 if (ci_putchk(si_ic(si), &trash) == -1)
3377 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003378
3379 appctx->ctx.sess.target = NULL;
3380 appctx->ctx.sess.uid = 0;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003381 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003382 }
William Lallemand4c5b4d52016-11-21 08:51:11 +01003383 /* fall through */
3384
3385 default:
3386 appctx->st2 = STAT_ST_FIN;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003387 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003388 }
Willy Tarreaue6e52362019-01-04 17:42:57 +01003389 done:
3390 thread_release();
3391 return 1;
3392 full:
3393 thread_release();
3394 si_rx_room_blk(si);
3395 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003396}
3397
3398static void cli_release_show_sess(struct appctx *appctx)
3399{
3400 if (appctx->st2 == STAT_ST_LIST) {
Willy Tarreau7ce3f092017-11-10 16:24:41 +01003401 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003402 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users))
3403 LIST_DEL(&appctx->ctx.sess.bref.users);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003404 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003405 }
3406}
3407
Willy Tarreau61b65212016-11-24 11:09:25 +01003408/* Parses the "shutdown session" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003409static int cli_parse_shutdown_session(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau61b65212016-11-24 11:09:25 +01003410{
3411 struct stream *strm, *ptr;
3412
3413 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3414 return 1;
3415
3416 if (!*args[2]) {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +02003417 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreau61b65212016-11-24 11:09:25 +01003418 appctx->ctx.cli.msg = "Session pointer expected (use 'show sess').\n";
Willy Tarreau3b6e5472016-11-24 15:53:53 +01003419 appctx->st0 = CLI_ST_PRINT;
Willy Tarreau61b65212016-11-24 11:09:25 +01003420 return 1;
3421 }
3422
3423 ptr = (void *)strtoul(args[2], NULL, 0);
3424
3425 /* first, look for the requested stream in the stream table */
3426 list_for_each_entry(strm, &streams, list) {
3427 if (strm == ptr)
3428 break;
3429 }
3430
3431 /* do we have the stream ? */
3432 if (strm != ptr) {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +02003433 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreau61b65212016-11-24 11:09:25 +01003434 appctx->ctx.cli.msg = "No such session (use 'show sess').\n";
Willy Tarreau3b6e5472016-11-24 15:53:53 +01003435 appctx->st0 = CLI_ST_PRINT;
Willy Tarreau61b65212016-11-24 11:09:25 +01003436 return 1;
3437 }
3438
3439 stream_shutdown(strm, SF_ERR_KILLED);
3440 return 1;
3441}
3442
Willy Tarreau4e46b622016-11-23 16:50:48 +01003443/* Parses the "shutdown session server" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003444static int cli_parse_shutdown_sessions_server(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau4e46b622016-11-23 16:50:48 +01003445{
3446 struct server *sv;
3447 struct stream *strm, *strm_bck;
3448
3449 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3450 return 1;
3451
3452 sv = cli_find_server(appctx, args[3]);
3453 if (!sv)
3454 return 1;
3455
3456 /* kill all the stream that are on this server */
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003457 HA_SPIN_LOCK(SERVER_LOCK, &sv->lock);
Willy Tarreau4e46b622016-11-23 16:50:48 +01003458 list_for_each_entry_safe(strm, strm_bck, &sv->actconns, by_srv)
3459 if (strm->srv_conn == sv)
3460 stream_shutdown(strm, SF_ERR_KILLED);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003461 HA_SPIN_UNLOCK(SERVER_LOCK, &sv->lock);
Willy Tarreau4e46b622016-11-23 16:50:48 +01003462 return 1;
3463}
3464
William Lallemand4c5b4d52016-11-21 08:51:11 +01003465/* register cli keywords */
3466static struct cli_kw_list cli_kws = {{ },{
3467 { { "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 +01003468 { { "shutdown", "session", NULL }, "shutdown session : kill a specific session", cli_parse_shutdown_session, NULL, NULL },
Willy Tarreau4e46b622016-11-23 16:50:48 +01003469 { { "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 +01003470 {{},}
3471}};
3472
Willy Tarreau0108d902018-11-25 19:14:37 +01003473INITCALL1(STG_REGISTER, cli_register_kw, &cli_kws);
3474
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003475/* main configuration keyword registration. */
3476static struct action_kw_list stream_tcp_keywords = { ILH, {
3477 { "use-service", stream_parse_use_service },
3478 { /* END */ }
3479}};
3480
Willy Tarreau0108d902018-11-25 19:14:37 +01003481INITCALL1(STG_REGISTER, tcp_req_cont_keywords_register, &stream_tcp_keywords);
3482
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003483static struct action_kw_list stream_http_keywords = { ILH, {
3484 { "use-service", stream_parse_use_service },
3485 { /* END */ }
3486}};
3487
Willy Tarreau0108d902018-11-25 19:14:37 +01003488INITCALL1(STG_REGISTER, http_req_keywords_register, &stream_http_keywords);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003489
Willy Tarreaubaaee002006-06-26 02:48:02 +02003490/*
3491 * Local variables:
3492 * c-indent-level: 8
3493 * c-basic-offset: 8
3494 * End:
3495 */