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Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
Willy Tarreau87b09662015-04-03 00:22:06 +02002 * Stream management functions.
Willy Tarreaubaaee002006-06-26 02:48:02 +02003 *
Willy Tarreaud28c3532012-04-19 19:28:33 +02004 * Copyright 2000-2012 Willy Tarreau <w@1wt.eu>
Willy Tarreaubaaee002006-06-26 02:48:02 +02005 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 *
11 */
12
13#include <stdlib.h>
Willy Tarreau81f9aa32010-06-01 17:45:26 +020014#include <unistd.h>
15#include <fcntl.h>
Willy Tarreaue3ba5f02006-06-29 18:54:54 +020016
Thierry FOURNIER5a363e72015-09-27 19:29:33 +020017#include <common/cfgparse.h>
Willy Tarreaue3ba5f02006-06-29 18:54:54 +020018#include <common/config.h>
Willy Tarreau9b28e032012-10-12 23:49:43 +020019#include <common/buffer.h>
Willy Tarreau7c669d72008-06-20 15:04:11 +020020#include <common/debug.h>
Christopher Faulet8d8aa0d2017-05-30 15:36:50 +020021#include <common/hathreads.h>
Willy Tarreaub96b77e2018-12-11 10:22:41 +010022#include <common/htx.h>
Willy Tarreau0108d902018-11-25 19:14:37 +010023#include <common/initcall.h>
24#include <common/memory.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020025
Willy Tarreau8a8d83b2015-04-13 13:24:54 +020026#include <types/applet.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020027#include <types/capture.h>
William Lallemand4c5b4d52016-11-21 08:51:11 +010028#include <types/cli.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +020029#include <types/filters.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010030#include <types/global.h>
William Lallemand9ed62032016-11-21 17:49:11 +010031#include <types/stats.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020032
Willy Tarreau1d0dfb12009-07-07 15:10:31 +020033#include <proto/acl.h>
Thierry FOURNIER5a363e72015-09-27 19:29:33 +020034#include <proto/action.h>
Willy Tarreau609aad92018-11-22 08:31:09 +010035#include <proto/activity.h>
Willy Tarreau61612d42012-04-19 18:42:05 +020036#include <proto/arg.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010037#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020038#include <proto/channel.h>
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +010039#include <proto/checks.h>
William Lallemand4c5b4d52016-11-21 08:51:11 +010040#include <proto/cli.h>
Willy Tarreaud2274c62012-07-06 14:29:45 +020041#include <proto/connection.h>
Frédéric Lécaille03cdf552019-05-20 10:08:27 +020042#include <proto/dict.h>
Baptiste Assmann333939c2019-01-21 08:34:50 +010043#include <proto/dns.h>
William Lallemand9ed62032016-11-21 17:49:11 +010044#include <proto/stats.h>
Willy Tarreaudd2f85e2012-09-02 22:34:23 +020045#include <proto/fd.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +020046#include <proto/filters.h>
Willy Tarreau91c43d72010-06-20 11:19:22 +020047#include <proto/freq_ctr.h>
Willy Tarreau3041b9f2010-10-15 23:25:20 +020048#include <proto/frontend.h>
Thierry FOURNIER65f34c62015-02-16 20:11:43 +010049#include <proto/hlua.h>
Willy Tarreau61c112a2018-10-02 16:43:32 +020050#include <proto/http_rules.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +020051#include <proto/listener.h>
Willy Tarreau332f8bf2007-05-13 21:36:56 +020052#include <proto/log.h>
Willy Tarreaucbaaec42012-09-06 11:32:07 +020053#include <proto/raw_sock.h>
Willy Tarreaufeb76402015-04-03 14:10:06 +020054#include <proto/session.h>
Willy Tarreau87b09662015-04-03 00:22:06 +020055#include <proto/stream.h>
Willy Tarreau3eba98a2009-01-25 13:56:13 +010056#include <proto/pipe.h>
Christopher Fauletfc9cfe42019-07-16 14:54:53 +020057#include <proto/http_ana.h>
Willy Tarreau1d0dfb12009-07-07 15:10:31 +020058#include <proto/proxy.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020059#include <proto/queue.h>
Willy Tarreau7f062c42009-03-05 18:43:00 +010060#include <proto/server.h>
Willy Tarreaucd3b0942012-04-27 21:52:18 +020061#include <proto/sample.h>
Emeric Brun1d33b292010-01-04 15:47:17 +010062#include <proto/stick_table.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010063#include <proto/stream_interface.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010064#include <proto/task.h>
Willy Tarreau39713102016-11-25 15:49:32 +010065#include <proto/tcp_rules.h>
Thierry FOURNIER4834bc72015-06-06 19:29:07 +020066#include <proto/vars.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020067
Willy Tarreau8ceae722018-11-26 11:58:30 +010068DECLARE_POOL(pool_head_stream, "stream", sizeof(struct stream));
69
Willy Tarreaub6b3df32018-11-26 16:31:20 +010070struct list streams = LIST_HEAD_INIT(streams);
Willy Tarreau86abe442018-11-25 20:12:18 +010071__decl_spinlock(streams_lock);
Willy Tarreaubaaee002006-06-26 02:48:02 +020072
Thierry FOURNIER5a363e72015-09-27 19:29:33 +020073/* List of all use-service keywords. */
74static struct list service_keywords = LIST_HEAD_INIT(service_keywords);
75
Willy Tarreau5790eb02017-08-28 17:18:36 +020076
Christopher Fauleteea8fc72019-11-05 16:18:10 +010077/* trace source and events */
78static void strm_trace(enum trace_level level, uint64_t mask,
79 const struct trace_source *src,
80 const struct ist where, const struct ist func,
81 const void *a1, const void *a2, const void *a3, const void *a4);
82
83/* The event representation is split like this :
84 * strm - stream
85 * si - stream interface
86 * http - http analyzis
87 * tcp - tcp analyzis
88 *
89 * STRM_EV_* macros are defined in <proto/stream.h>
90 */
91static const struct trace_event strm_trace_events[] = {
92 { .mask = STRM_EV_STRM_NEW, .name = "strm_new", .desc = "new stream" },
93 { .mask = STRM_EV_STRM_FREE, .name = "strm_free", .desc = "release stream" },
94 { .mask = STRM_EV_STRM_ERR, .name = "strm_err", .desc = "error during stream processing" },
95 { .mask = STRM_EV_STRM_ANA, .name = "strm_ana", .desc = "stream analyzers" },
96 { .mask = STRM_EV_STRM_PROC, .name = "strm_proc", .desc = "stream processing" },
97
98 { .mask = STRM_EV_SI_ST, .name = "si_state", .desc = "processing stream-interface states" },
99
100 { .mask = STRM_EV_HTTP_ANA, .name = "http_ana", .desc = "HTTP analyzers" },
101 { .mask = STRM_EV_HTTP_ERR, .name = "http_err", .desc = "error during HTTP analyzis" },
102
103 { .mask = STRM_EV_TCP_ANA, .name = "tcp_ana", .desc = "TCP analyzers" },
104 { .mask = STRM_EV_TCP_ERR, .name = "tcp_err", .desc = "error during TCP analyzis" },
105 {}
106};
107
108static const struct name_desc strm_trace_lockon_args[4] = {
109 /* arg1 */ { /* already used by the stream */ },
110 /* arg2 */ { },
111 /* arg3 */ { },
112 /* arg4 */ { }
113};
114
115static const struct name_desc strm_trace_decoding[] = {
116#define STRM_VERB_CLEAN 1
117 { .name="clean", .desc="only user-friendly stuff, generally suitable for level \"user\"" },
118#define STRM_VERB_MINIMAL 2
119 { .name="minimal", .desc="report info on stream and stream-interfaces" },
120#define STRM_VERB_SIMPLE 3
121 { .name="simple", .desc="add info on request and response channels" },
122#define STRM_VERB_ADVANCED 4
123 { .name="advanced", .desc="add info on channel's buffer for data and developer levels only" },
124#define STRM_VERB_COMPLETE 5
125 { .name="complete", .desc="add info on channel's buffer" },
126 { /* end */ }
127};
128
129struct trace_source trace_strm = {
130 .name = IST("stream"),
131 .desc = "Applicative stream",
132 .arg_def = TRC_ARG1_STRM, // TRACE()'s first argument is always a stream
133 .default_cb = strm_trace,
134 .known_events = strm_trace_events,
135 .lockon_args = strm_trace_lockon_args,
136 .decoding = strm_trace_decoding,
137 .report_events = ~0, // report everything by default
138};
139
140#define TRACE_SOURCE &trace_strm
141INITCALL1(STG_REGISTER, trace_register_source, TRACE_SOURCE);
142
143/* the stream traces always expect that arg1, if non-null, is of a stream (from
144 * which we can derive everything), that arg2, if non-null, is an http
145 * transaction, that arg3, if non-null, is an http message.
146 */
147static void strm_trace(enum trace_level level, uint64_t mask, const struct trace_source *src,
148 const struct ist where, const struct ist func,
149 const void *a1, const void *a2, const void *a3, const void *a4)
150{
151 const struct stream *s = a1;
152 const struct http_txn *txn = a2;
153 const struct http_msg *msg = a3;
154 struct task *task;
155 const struct stream_interface *si_f, *si_b;
156 const struct channel *req, *res;
157 struct htx *htx;
158
159 if (!s || src->verbosity < STRM_VERB_CLEAN)
160 return;
161
162 task = s->task;
163 si_f = &s->si[0];
164 si_b = &s->si[1];
165 req = &s->req;
166 res = &s->res;
167 htx = (msg ? htxbuf(&msg->chn->buf) : NULL);
168
169 /* General info about the stream (htx/tcp, id...) */
170 chunk_appendf(&trace_buf, " : [%u,%s]",
171 s->uniq_id, ((s->flags & SF_HTX) ? "HTX" : "TCP"));
172 if (s->unique_id)
173 chunk_appendf(&trace_buf, " id=%s", s->unique_id);
174
175 /* Front and back stream-int state */
176 chunk_appendf(&trace_buf, " SI=(%s,%s)",
177 si_state_str(si_f->state), si_state_str(si_b->state));
178
179 /* If txn is defined, HTTP req/rep states */
180 if (txn)
181 chunk_appendf(&trace_buf, " HTTP=(%s,%s)",
182 h1_msg_state_str(txn->req.msg_state), h1_msg_state_str(txn->rsp.msg_state));
183 if (msg)
184 chunk_appendf(&trace_buf, " %s", ((msg->chn->flags & CF_ISRESP) ? "RESPONSE" : "REQUEST"));
185
186 if (src->verbosity == STRM_VERB_CLEAN)
187 return;
188
189 /* If msg defined, display status-line if possible (verbosity > MINIMAL) */
190 if (src->verbosity > STRM_VERB_MINIMAL && htx && htx_nbblks(htx)) {
191 const struct htx_blk *blk = htx_get_head_blk(htx);
192 const struct htx_sl *sl = htx_get_blk_ptr(htx, blk);
193 enum htx_blk_type type = htx_get_blk_type(blk);
194
195 if (type == HTX_BLK_REQ_SL || type == HTX_BLK_RES_SL)
196 chunk_appendf(&trace_buf, " - \"%.*s %.*s %.*s\"",
197 HTX_SL_P1_LEN(sl), HTX_SL_P1_PTR(sl),
198 HTX_SL_P2_LEN(sl), HTX_SL_P2_PTR(sl),
199 HTX_SL_P3_LEN(sl), HTX_SL_P3_PTR(sl));
200 }
201
202
203 /* If txn defined info about HTTP msgs, otherwise info about SI. */
204 if (txn) {
205 chunk_appendf(&trace_buf, " - t=%p s=(%p,0x%08x) txn.flags=0x%08x, http.flags=(0x%08x,0x%08x) status=%d",
206 task, s, s->flags, txn->flags, txn->req.flags, txn->rsp.flags, txn->status);
207 }
208 else {
209 chunk_appendf(&trace_buf, " - t=%p s=(%p,0x%08x) si_f=(%p,0x%08x,0x%x) si_b=(%p,0x%08x,0x%x) retries=%d",
210 task, s, s->flags, si_f, si_f->flags, si_f->err_type,
211 si_b, si_b->flags, si_b->err_type, si_b->conn_retries);
212 }
213
214 if (src->verbosity == STRM_VERB_MINIMAL)
215 return;
216
217
218 /* If txn defined, don't display all channel info */
219 if (src->verbosity == STRM_VERB_SIMPLE || txn) {
220 chunk_appendf(&trace_buf, " req=(%p .fl=0x%08x .exp(r,w,a)=(%u,%u,%u))",
221 req, req->flags, req->rex, req->wex, req->analyse_exp);
222 chunk_appendf(&trace_buf, " res=(%p .fl=0x%08x .exp(r,w,a)=(%u,%u,%u))",
223 res, res->flags, res->rex, res->wex, res->analyse_exp);
224 }
225 else {
226 chunk_appendf(&trace_buf, " req=(%p .fl=0x%08x .ana=0x%08x .exp(r,w,a)=(%u,%u,%u) .o=%lu .tot=%llu .to_fwd=%u)",
227 req, req->flags, req->analysers, req->rex, req->wex, req->analyse_exp,
Willy Tarreaue18f53e2019-11-27 15:41:31 +0100228 (long)req->output, req->total, req->to_forward);
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100229 chunk_appendf(&trace_buf, " res=(%p .fl=0x%08x .ana=0x%08x .exp(r,w,a)=(%u,%u,%u) .o=%lu .tot=%llu .to_fwd=%u)",
230 res, res->flags, res->analysers, res->rex, res->wex, res->analyse_exp,
Willy Tarreaue18f53e2019-11-27 15:41:31 +0100231 (long)res->output, res->total, res->to_forward);
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100232 }
233
234 if (src->verbosity == STRM_VERB_SIMPLE ||
235 (src->verbosity == STRM_VERB_ADVANCED && src->level < TRACE_LEVEL_DATA))
236 return;
237
238 /* channels' buffer info */
239 if (s->flags & SF_HTX) {
240 struct htx *rqhtx = htxbuf(&req->buf);
241 struct htx *rphtx = htxbuf(&res->buf);
242
243 chunk_appendf(&trace_buf, " htx=(%u/%u#%u, %u/%u#%u)",
244 rqhtx->data, rqhtx->size, htx_nbblks(rqhtx),
245 rphtx->data, rphtx->size, htx_nbblks(rphtx));
246 }
247 else {
248 chunk_appendf(&trace_buf, " buf=(%u@%p+%u/%u, %u@%p+%u/%u)",
249 (unsigned int)b_data(&req->buf), b_orig(&req->buf),
250 (unsigned int)b_head_ofs(&req->buf), (unsigned int)b_size(&req->buf),
251 (unsigned int)b_data(&req->buf), b_orig(&req->buf),
252 (unsigned int)b_head_ofs(&req->buf), (unsigned int)b_size(&req->buf));
253 }
254
255 /* If msg defined, display htx info if defined (level > USER) */
256 if (src->level > TRACE_LEVEL_USER && htx && htx_nbblks(htx)) {
257 int full = 0;
258
259 /* Full htx info (level > STATE && verbosity > SIMPLE) */
260 if (src->level > TRACE_LEVEL_STATE) {
261 if (src->verbosity == STRM_VERB_COMPLETE)
262 full = 1;
263 }
264
265 chunk_memcat(&trace_buf, "\n\t", 2);
266 htx_dump(&trace_buf, htx, full);
267 }
268}
269
Willy Tarreau5790eb02017-08-28 17:18:36 +0200270/* Create a new stream for connection <conn>. Return < 0 on error. This is only
271 * valid right after the handshake, before the connection's data layer is
272 * initialized, because it relies on the session to be in conn->owner.
273 */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200274int stream_create_from_cs(struct conn_stream *cs)
Willy Tarreau5790eb02017-08-28 17:18:36 +0200275{
276 struct stream *strm;
277
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200278 strm = stream_new(cs->conn->owner, &cs->obj_type);
Willy Tarreau5790eb02017-08-28 17:18:36 +0200279 if (strm == NULL)
280 return -1;
281
282 task_wakeup(strm->task, TASK_WOKEN_INIT);
283 return 0;
284}
285
Willy Tarreaub882dd82018-11-06 15:50:21 +0100286/* Callback used to wake up a stream when an input buffer is available. The
287 * stream <s>'s stream interfaces are checked for a failed buffer allocation
Willy Tarreaud0f5bbc2018-11-14 11:10:26 +0100288 * as indicated by the presence of the SI_FL_RXBLK_ROOM flag and the lack of a
Willy Tarreaub882dd82018-11-06 15:50:21 +0100289 * buffer, and and input buffer is assigned there (at most one). The function
290 * returns 1 and wakes the stream up if a buffer was taken, otherwise zero.
291 * It's designed to be called from __offer_buffer().
292 */
293int stream_buf_available(void *arg)
294{
295 struct stream *s = arg;
296
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100297 if (!s->req.buf.size && !s->req.pipe && (s->si[0].flags & SI_FL_RXBLK_BUFF) &&
Willy Tarreaub882dd82018-11-06 15:50:21 +0100298 b_alloc_margin(&s->req.buf, global.tune.reserved_bufs))
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100299 si_rx_buff_rdy(&s->si[0]);
300 else if (!s->res.buf.size && !s->res.pipe && (s->si[1].flags & SI_FL_RXBLK_BUFF) &&
Willy Tarreaub882dd82018-11-06 15:50:21 +0100301 b_alloc_margin(&s->res.buf, 0))
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100302 si_rx_buff_rdy(&s->si[1]);
Willy Tarreaub882dd82018-11-06 15:50:21 +0100303 else
304 return 0;
305
306 task_wakeup(s->task, TASK_WOKEN_RES);
307 return 1;
308
309}
310
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200311/* This function is called from the session handler which detects the end of
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200312 * handshake, in order to complete initialization of a valid stream. It must be
Joseph Herlant4cc8d0d2018-11-15 09:14:14 -0800313 * called with a completely initialized session. It returns the pointer to
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200314 * the newly created stream, or NULL in case of fatal error. The client-facing
Willy Tarreau87787ac2017-08-28 16:22:54 +0200315 * end point is assigned to <origin>, which must be valid. The stream's task
316 * is configured with a nice value inherited from the listener's nice if any.
317 * The task's context is set to the new stream, and its function is set to
318 * process_stream(). Target and analysers are null.
Willy Tarreau2542b532012-08-31 16:01:23 +0200319 */
Willy Tarreau87787ac2017-08-28 16:22:54 +0200320struct stream *stream_new(struct session *sess, enum obj_type *origin)
Willy Tarreau2542b532012-08-31 16:01:23 +0200321{
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200322 struct stream *s;
Willy Tarreau87787ac2017-08-28 16:22:54 +0200323 struct task *t;
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200324 struct conn_stream *cs = objt_cs(origin);
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200325 struct appctx *appctx = objt_appctx(origin);
Christopher Fauletb3484d62018-11-29 15:19:05 +0100326 const struct cs_info *csinfo;
Willy Tarreau2542b532012-08-31 16:01:23 +0200327
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100328 DBG_TRACE_ENTER(STRM_EV_STRM_NEW);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100329 if (unlikely((s = pool_alloc(pool_head_stream)) == NULL))
Willy Tarreau87787ac2017-08-28 16:22:54 +0200330 goto out_fail_alloc;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200331
332 /* minimum stream initialization required for an embryonic stream is
333 * fairly low. We need very little to execute L4 ACLs, then we need a
334 * task to make the client-side connection live on its own.
335 * - flags
336 * - stick-entry tracking
337 */
338 s->flags = 0;
Willy Tarreaufb9f5842015-04-05 18:19:23 +0200339 s->logs.logwait = sess->fe->to_log;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200340 s->logs.level = 0;
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200341 tv_zero(&s->logs.tv_request);
342 s->logs.t_queue = -1;
343 s->logs.t_connect = -1;
344 s->logs.t_data = -1;
345 s->logs.t_close = 0;
346 s->logs.bytes_in = s->logs.bytes_out = 0;
Patrick Hemmerffe5e8c2018-05-11 12:52:31 -0400347 s->logs.prx_queue_pos = 0; /* we get the number of pending conns before us */
348 s->logs.srv_queue_pos = 0; /* we will get this number soon */
Baptiste Assmann333939c2019-01-21 08:34:50 +0100349 s->obj_type = OBJ_TYPE_STREAM;
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200350
Christopher Fauletb3484d62018-11-29 15:19:05 +0100351 csinfo = si_get_cs_info(cs);
352 if (csinfo) {
353 s->logs.accept_date = csinfo->create_date;
354 s->logs.tv_accept = csinfo->tv_create;
355 s->logs.t_handshake = csinfo->t_handshake;
356 s->logs.t_idle = csinfo->t_idle;
357 }
358 else {
359 s->logs.accept_date = sess->accept_date;
360 s->logs.tv_accept = sess->tv_accept;
361 s->logs.t_handshake = sess->t_handshake;
362 s->logs.t_idle = -1;
363 }
364
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200365 /* default logging function */
366 s->do_log = strm_log;
367
368 /* default error reporting function, may be changed by analysers */
369 s->srv_error = default_srv_error;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200370
371 /* Initialise the current rule list pointer to NULL. We are sure that
372 * any rulelist match the NULL pointer.
373 */
374 s->current_rule_list = NULL;
Remi Gacogne7fb9de22015-07-22 17:10:58 +0200375 s->current_rule = NULL;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200376
Willy Tarreaua68f7622015-09-21 17:48:24 +0200377 /* Copy SC counters for the stream. We don't touch refcounts because
378 * any reference we have is inherited from the session. Since the stream
379 * doesn't exist without the session, the session's existence guarantees
380 * we don't lose the entry. During the store operation, the stream won't
381 * touch these ones.
Thierry FOURNIER827752e2015-08-18 11:34:18 +0200382 */
Thierry FOURNIERc8fdb982015-08-16 12:03:39 +0200383 memcpy(s->stkctr, sess->stkctr, sizeof(s->stkctr));
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200384
385 s->sess = sess;
386 s->si[0].flags = SI_FL_NONE;
387 s->si[1].flags = SI_FL_ISBACK;
388
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100389 s->uniq_id = _HA_ATOMIC_XADD(&global.req_count, 1);
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200390
Willy Tarreau87b09662015-04-03 00:22:06 +0200391 /* OK, we're keeping the stream, so let's properly initialize the stream */
Willy Tarreau2542b532012-08-31 16:01:23 +0200392 LIST_INIT(&s->back_refs);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100393
394 LIST_INIT(&s->buffer_wait.list);
395 s->buffer_wait.target = s;
Willy Tarreaub882dd82018-11-06 15:50:21 +0100396 s->buffer_wait.wakeup_cb = stream_buf_available;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200397
Willy Tarreau2e9c1d22019-04-24 08:28:31 +0200398 s->call_rate.curr_sec = s->call_rate.curr_ctr = s->call_rate.prev_ctr = 0;
William Lallemandcf62f7e2018-10-26 14:47:40 +0200399 s->pcli_next_pid = 0;
William Lallemandebf61802018-12-11 16:10:57 +0100400 s->pcli_flags = 0;
Willy Tarreau2542b532012-08-31 16:01:23 +0200401 s->unique_id = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200402
Emeric Brunc60def82017-09-27 14:59:38 +0200403 if ((t = task_new(tid_bit)) == NULL)
Willy Tarreau87787ac2017-08-28 16:22:54 +0200404 goto out_fail_alloc;
405
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200406 s->task = t;
Christopher Faulet9d810ca2016-12-08 22:33:52 +0100407 s->pending_events = 0;
Willy Tarreaud1769b82015-04-06 00:25:48 +0200408 t->process = process_stream;
Willy Tarreau2542b532012-08-31 16:01:23 +0200409 t->context = s;
410 t->expire = TICK_ETERNITY;
Willy Tarreau87787ac2017-08-28 16:22:54 +0200411 if (sess->listener)
412 t->nice = sess->listener->nice;
Willy Tarreau2542b532012-08-31 16:01:23 +0200413
Willy Tarreau87b09662015-04-03 00:22:06 +0200414 /* Note: initially, the stream's backend points to the frontend.
Willy Tarreau2542b532012-08-31 16:01:23 +0200415 * This changes later when switching rules are executed or
416 * when the default backend is assigned.
417 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200418 s->be = sess->fe;
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200419 s->req.buf = BUF_NULL;
420 s->res.buf = BUF_NULL;
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200421 s->req_cap = NULL;
422 s->res_cap = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200423
Willy Tarreauebcd4842015-06-19 11:59:02 +0200424 /* Initialise all the variables contexts even if not used.
425 * This permits to prune these contexts without errors.
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200426 */
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200427 vars_init(&s->vars_txn, SCOPE_TXN);
428 vars_init(&s->vars_reqres, SCOPE_REQ);
429
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200430 /* this part should be common with other protocols */
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200431 if (si_reset(&s->si[0]) < 0)
432 goto out_fail_alloc;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200433 si_set_state(&s->si[0], SI_ST_EST);
Hongbo Longe39683c2017-03-10 18:41:51 +0100434 s->si[0].hcto = sess->fe->timeout.clientfin;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200435
Christopher Faulet0e160ff2019-04-03 10:01:07 +0200436 if (cs && cs->conn->mux) {
437 if (cs->conn->mux->flags & MX_FL_CLEAN_ABRT)
438 s->si[0].flags |= SI_FL_CLEAN_ABRT;
439 if (cs->conn->mux->flags & MX_FL_HTX)
440 s->flags |= SF_HTX;
441 }
Christopher Faulet3494c632019-07-15 14:58:26 +0200442 /* Set SF_HTX flag for HTTP frontends. */
443 if (sess->fe->mode == PR_MODE_HTTP)
Christopher Faulet0e160ff2019-04-03 10:01:07 +0200444 s->flags |= SF_HTX;
Willy Tarreau984fca92017-12-20 16:31:43 +0100445
Willy Tarreau1f52bb22015-04-04 14:28:46 +0200446 /* attach the incoming connection to the stream interface now. */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200447 if (cs)
448 si_attach_cs(&s->si[0], cs);
Willy Tarreau470280e2015-04-05 01:33:13 +0200449 else if (appctx)
450 si_attach_appctx(&s->si[0], appctx);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200451
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200452 if (likely(sess->fe->options2 & PR_O2_INDEPSTR))
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200453 s->si[0].flags |= SI_FL_INDEP_STR;
454
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200455 /* pre-initialize the other side's stream interface to an INIT state. The
456 * callbacks will be initialized before attempting to connect.
457 */
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200458 if (si_reset(&s->si[1]) < 0)
459 goto out_fail_alloc_si1;
Hongbo Longe39683c2017-03-10 18:41:51 +0100460 s->si[1].hcto = TICK_ETERNITY;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200461
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200462 if (likely(sess->fe->options2 & PR_O2_INDEPSTR))
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200463 s->si[1].flags |= SI_FL_INDEP_STR;
464
Willy Tarreau87b09662015-04-03 00:22:06 +0200465 stream_init_srv_conn(s);
Willy Tarreau9b82d942016-12-05 00:26:31 +0100466 s->target = sess->listener ? sess->listener->default_target : NULL;
Willy Tarreau90420602019-07-18 15:09:57 +0200467 s->target_addr = NULL;
Willy Tarreau9b82d942016-12-05 00:26:31 +0100468
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200469 s->pend_pos = NULL;
Patrick Hemmer268a7072018-05-11 12:52:31 -0400470 s->priority_class = 0;
471 s->priority_offset = 0;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200472
473 /* init store persistence */
474 s->store_count = 0;
475
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100476 channel_init(&s->req);
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100477 s->req.flags |= CF_READ_ATTACHED; /* the producer is already connected */
Willy Tarreau9b82d942016-12-05 00:26:31 +0100478 s->req.analysers = sess->listener ? sess->listener->analysers : 0;
Willy Tarreaue223e3b2017-11-18 15:39:10 +0100479
480 if (!sess->fe->fe_req_ana) {
481 channel_auto_connect(&s->req); /* don't wait to establish connection */
482 channel_auto_close(&s->req); /* let the producer forward close requests */
483 }
Willy Tarreauc8815ef2015-04-05 18:15:59 +0200484
485 s->req.rto = sess->fe->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100486 s->req.wto = TICK_ETERNITY;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100487 s->req.rex = TICK_ETERNITY;
488 s->req.wex = TICK_ETERNITY;
489 s->req.analyse_exp = TICK_ETERNITY;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200490
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100491 channel_init(&s->res);
Willy Tarreauef573c02014-11-28 14:17:09 +0100492 s->res.flags |= CF_ISRESP;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100493 s->res.analysers = 0;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200494
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200495 if (sess->fe->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100496 s->req.flags |= CF_NEVER_WAIT;
497 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200498 }
499
Willy Tarreauc8815ef2015-04-05 18:15:59 +0200500 s->res.wto = sess->fe->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100501 s->res.rto = TICK_ETERNITY;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100502 s->res.rex = TICK_ETERNITY;
503 s->res.wex = TICK_ETERNITY;
504 s->res.analyse_exp = TICK_ETERNITY;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200505
Willy Tarreaueee5b512015-04-03 23:46:31 +0200506 s->txn = NULL;
Thierry FOURNIER2c8b54e2016-12-17 12:45:32 +0100507 s->hlua = NULL;
Thierry FOURNIER65f34c62015-02-16 20:11:43 +0100508
Frédéric Lécaillebed883a2019-04-23 17:26:33 +0200509 s->dns_ctx.dns_requester = NULL;
510 s->dns_ctx.hostname_dn = NULL;
511 s->dns_ctx.hostname_dn_len = 0;
512 s->dns_ctx.parent = NULL;
513
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100514 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200515 LIST_ADDQ(&streams, &s->list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100516 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200517
Christopher Faulet92d36382015-11-05 13:35:03 +0100518 if (flt_stream_init(s) < 0 || flt_stream_start(s) < 0)
Christopher Fauletd7c91962015-04-30 11:48:27 +0200519 goto out_fail_accept;
520
Olivier Houcharda254a372019-04-05 15:30:12 +0200521 s->si[1].l7_buffer = BUF_NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200522 /* finish initialization of the accepted file descriptor */
Olivier Houchard53216e72018-10-10 15:46:36 +0200523 if (appctx)
Willy Tarreau0cd3bd62018-11-06 18:46:37 +0100524 si_want_get(&s->si[0]);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200525
Willy Tarreaufb9f5842015-04-05 18:19:23 +0200526 if (sess->fe->accept && sess->fe->accept(s) < 0)
Willy Tarreauc5a7ff42015-04-05 11:52:08 +0200527 goto out_fail_accept;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200528
529 /* it is important not to call the wakeup function directly but to
530 * pass through task_wakeup(), because this one knows how to apply
Emeric Brun5f77fef2017-05-29 15:26:51 +0200531 * priorities to tasks. Using multi thread we must be sure that
532 * stream is fully initialized before calling task_wakeup. So
533 * the caller must handle the task_wakeup
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200534 */
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100535 DBG_TRACE_LEAVE(STRM_EV_STRM_NEW, s);
Willy Tarreau02d86382015-04-05 12:00:52 +0200536 return s;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200537
538 /* Error unrolling */
Willy Tarreauc5a7ff42015-04-05 11:52:08 +0200539 out_fail_accept:
Christopher Faulet92d36382015-11-05 13:35:03 +0100540 flt_stream_release(s, 0);
Olivier Houchard3f795f72019-04-17 22:51:06 +0200541 task_destroy(t);
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200542 tasklet_free(s->si[1].wait_event.tasklet);
Willy Tarreaue5f229e2018-10-15 11:08:55 +0200543 LIST_DEL(&s->list);
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200544out_fail_alloc_si1:
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200545 tasklet_free(s->si[0].wait_event.tasklet);
Willy Tarreau87787ac2017-08-28 16:22:54 +0200546 out_fail_alloc:
Willy Tarreaubafbe012017-11-24 17:34:44 +0100547 pool_free(pool_head_stream, s);
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100548 DBG_TRACE_DEVEL("leaving on error", STRM_EV_STRM_NEW|STRM_EV_STRM_ERR);
Willy Tarreau02d86382015-04-05 12:00:52 +0200549 return NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200550}
551
Willy Tarreaubaaee002006-06-26 02:48:02 +0200552/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200553 * frees the context associated to a stream. It must have been removed first.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200554 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200555static void stream_free(struct stream *s)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200556{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200557 struct session *sess = strm_sess(s);
558 struct proxy *fe = sess->fe;
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100559 struct bref *bref, *back;
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200560 struct conn_stream *cli_cs = objt_cs(s->si[0].end);
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100561 int must_free_sess;
Willy Tarreaua4cda672010-06-06 18:28:49 +0200562 int i;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100563
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100564 DBG_TRACE_POINT(STRM_EV_STRM_FREE, s);
565
Willy Tarreau0ad46fa2019-05-17 14:20:05 +0200566 /* detach the stream from its own task before even releasing it so
567 * that walking over a task list never exhibits a dying stream.
568 */
569 s->task->context = NULL;
570 __ha_barrier_store();
571
Willy Tarreaud0ad4a82018-07-25 11:13:53 +0200572 pendconn_free(s);
Willy Tarreau922a8062008-12-04 09:33:58 +0100573
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100574 if (objt_server(s->target)) { /* there may be requests left pending in queue */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200575 if (s->flags & SF_CURR_SESS) {
576 s->flags &= ~SF_CURR_SESS;
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100577 _HA_ATOMIC_SUB(&__objt_server(s->target)->cur_sess, 1);
Willy Tarreau1e62de62008-11-11 20:20:02 +0100578 }
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100579 if (may_dequeue_tasks(objt_server(s->target), s->be))
580 process_srv_queue(objt_server(s->target));
Willy Tarreau1e62de62008-11-11 20:20:02 +0100581 }
Willy Tarreau922a8062008-12-04 09:33:58 +0100582
Willy Tarreau7c669d72008-06-20 15:04:11 +0200583 if (unlikely(s->srv_conn)) {
Willy Tarreau87b09662015-04-03 00:22:06 +0200584 /* the stream still has a reserved slot on a server, but
Willy Tarreau7c669d72008-06-20 15:04:11 +0200585 * it should normally be only the same as the one above,
586 * so this should not happen in fact.
587 */
588 sess_change_server(s, NULL);
589 }
590
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100591 if (s->req.pipe)
592 put_pipe(s->req.pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100593
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100594 if (s->res.pipe)
595 put_pipe(s->res.pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100596
Willy Tarreaubf883e02014-11-25 21:10:35 +0100597 /* We may still be present in the buffer wait queue */
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100598 if (!LIST_ISEMPTY(&s->buffer_wait.list)) {
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100599 HA_SPIN_LOCK(BUF_WQ_LOCK, &buffer_wq_lock);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100600 LIST_DEL(&s->buffer_wait.list);
601 LIST_INIT(&s->buffer_wait.list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100602 HA_SPIN_UNLOCK(BUF_WQ_LOCK, &buffer_wq_lock);
Willy Tarreaubf883e02014-11-25 21:10:35 +0100603 }
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200604 if (s->req.buf.size || s->res.buf.size) {
Willy Tarreaue0d0b402019-08-08 08:06:27 +0200605 b_free(&s->req.buf);
606 b_free(&s->res.buf);
Olivier Houchard673867c2018-05-25 16:58:52 +0200607 offer_buffers(NULL, tasks_run_queue);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100608 }
Willy Tarreau9b28e032012-10-12 23:49:43 +0200609
Olivier Houchard32211a12019-02-01 18:10:46 +0100610 pool_free(pool_head_uniqueid, s->unique_id);
Willy Tarreau09c4bab2019-02-10 18:49:37 +0100611 s->unique_id = NULL;
Olivier Houchard32211a12019-02-01 18:10:46 +0100612
Thierry FOURNIER2c8b54e2016-12-17 12:45:32 +0100613 hlua_ctx_destroy(s->hlua);
614 s->hlua = NULL;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200615 if (s->txn)
616 http_end_txn(s);
Willy Tarreau46023632010-01-07 22:51:47 +0100617
Willy Tarreau1e954912012-10-12 17:50:05 +0200618 /* ensure the client-side transport layer is destroyed */
Willy Tarreau32560732017-10-08 11:33:44 +0200619 if (cli_cs)
620 cs_close(cli_cs);
Willy Tarreau1e954912012-10-12 17:50:05 +0200621
Willy Tarreaua4cda672010-06-06 18:28:49 +0200622 for (i = 0; i < s->store_count; i++) {
623 if (!s->store[i].ts)
624 continue;
625 stksess_free(s->store[i].table, s->store[i].ts);
626 s->store[i].ts = NULL;
627 }
628
Willy Tarreaueee5b512015-04-03 23:46:31 +0200629 if (s->txn) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100630 pool_free(pool_head_http_txn, s->txn);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200631 s->txn = NULL;
632 }
633
Baptiste Assmann333939c2019-01-21 08:34:50 +0100634 if (s->dns_ctx.dns_requester) {
635 free(s->dns_ctx.hostname_dn); s->dns_ctx.hostname_dn = NULL;
636 s->dns_ctx.hostname_dn_len = 0;
637 dns_unlink_resolution(s->dns_ctx.dns_requester);
638
639 pool_free(dns_requester_pool, s->dns_ctx.dns_requester);
640 s->dns_ctx.dns_requester = NULL;
641 }
642
Christopher Fauletd7c91962015-04-30 11:48:27 +0200643 flt_stream_stop(s);
Christopher Faulet92d36382015-11-05 13:35:03 +0100644 flt_stream_release(s, 0);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200645
Willy Tarreau92fb9832007-10-16 17:34:28 +0200646 if (fe) {
Christopher Faulet59399252019-11-07 14:27:52 +0100647 if (s->req_cap) {
648 struct cap_hdr *h;
649 for (h = fe->req_cap; h; h = h->next)
650 pool_free(h->pool, s->req_cap[h->index]);
651 }
652
653 if (s->res_cap) {
654 struct cap_hdr *h;
655 for (h = fe->rsp_cap; h; h = h->next)
656 pool_free(h->pool, s->res_cap[h->index]);
657 }
658
Willy Tarreaubafbe012017-11-24 17:34:44 +0100659 pool_free(fe->rsp_cap_pool, s->res_cap);
660 pool_free(fe->req_cap_pool, s->req_cap);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200661 }
Willy Tarreau0937bc42009-12-22 15:03:09 +0100662
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200663 /* Cleanup all variable contexts. */
Willy Tarreaucda7f3f2018-10-28 13:44:36 +0100664 if (!LIST_ISEMPTY(&s->vars_txn.head))
665 vars_prune(&s->vars_txn, s->sess, s);
666 if (!LIST_ISEMPTY(&s->vars_reqres.head))
667 vars_prune(&s->vars_reqres, s->sess, s);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200668
Willy Tarreau87b09662015-04-03 00:22:06 +0200669 stream_store_counters(s);
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +0200670
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100671 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100672 list_for_each_entry_safe(bref, back, &s->back_refs, users) {
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100673 /* we have to unlink all watchers. We must not relink them if
Willy Tarreau87b09662015-04-03 00:22:06 +0200674 * this stream was the last one in the list.
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100675 */
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100676 LIST_DEL(&bref->users);
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100677 LIST_INIT(&bref->users);
Willy Tarreau87b09662015-04-03 00:22:06 +0200678 if (s->list.n != &streams)
679 LIST_ADDQ(&LIST_ELEM(s->list.n, struct stream *, list)->back_refs, &bref->users);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100680 bref->ref = s->list.n;
681 }
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100682 LIST_DEL(&s->list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100683 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200684
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100685 /* applets do not release session yet */
686 must_free_sess = objt_appctx(sess->origin) && sess->origin == s->si[0].end;
687
Olivier Houchard4fdec7a2018-10-11 17:09:14 +0200688
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200689 si_release_endpoint(&s->si[1]);
690 si_release_endpoint(&s->si[0]);
Willy Tarreaufeb76402015-04-03 14:10:06 +0200691
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200692 tasklet_free(s->si[0].wait_event.tasklet);
693 tasklet_free(s->si[1].wait_event.tasklet);
Olivier Houchardd7bd3e32018-10-18 16:22:02 +0200694
Olivier Houcharda254a372019-04-05 15:30:12 +0200695 b_free(&s->si[1].l7_buffer);
Olivier Houchard25607af2018-11-23 14:50:47 +0100696 if (must_free_sess) {
697 sess->origin = NULL;
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100698 session_free(sess);
Olivier Houchard25607af2018-11-23 14:50:47 +0100699 }
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100700
Willy Tarreau90420602019-07-18 15:09:57 +0200701 sockaddr_free(&s->target_addr);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100702 pool_free(pool_head_stream, s);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200703
704 /* We may want to free the maximum amount of pools if the proxy is stopping */
Willy Tarreau92fb9832007-10-16 17:34:28 +0200705 if (fe && unlikely(fe->state == PR_STSTOPPED)) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100706 pool_flush(pool_head_buffer);
707 pool_flush(pool_head_http_txn);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100708 pool_flush(pool_head_requri);
709 pool_flush(pool_head_capture);
710 pool_flush(pool_head_stream);
711 pool_flush(pool_head_session);
712 pool_flush(pool_head_connection);
713 pool_flush(pool_head_pendconn);
714 pool_flush(fe->req_cap_pool);
715 pool_flush(fe->rsp_cap_pool);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200716 }
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200717}
718
Willy Tarreau656859d2014-11-25 19:46:36 +0100719
Willy Tarreau87b09662015-04-03 00:22:06 +0200720/* Allocates a work buffer for stream <s>. It is meant to be called inside
721 * process_stream(). It will only allocate the side needed for the function
Willy Tarreaubc39a5d2015-04-20 15:52:18 +0200722 * to work fine, which is the response buffer so that an error message may be
723 * built and returned. Response buffers may be allocated from the reserve, this
724 * is critical to ensure that a response may always flow and will never block a
725 * server from releasing a connection. Returns 0 in case of failure, non-zero
726 * otherwise.
Willy Tarreau656859d2014-11-25 19:46:36 +0100727 */
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100728static int stream_alloc_work_buffer(struct stream *s)
Willy Tarreau656859d2014-11-25 19:46:36 +0100729{
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100730 if (!LIST_ISEMPTY(&s->buffer_wait.list)) {
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100731 HA_SPIN_LOCK(BUF_WQ_LOCK, &buffer_wq_lock);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100732 LIST_DEL(&s->buffer_wait.list);
733 LIST_INIT(&s->buffer_wait.list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100734 HA_SPIN_UNLOCK(BUF_WQ_LOCK, &buffer_wq_lock);
Willy Tarreaubf883e02014-11-25 21:10:35 +0100735 }
Willy Tarreau656859d2014-11-25 19:46:36 +0100736
Willy Tarreaubc39a5d2015-04-20 15:52:18 +0200737 if (b_alloc_margin(&s->res.buf, 0))
Willy Tarreau656859d2014-11-25 19:46:36 +0100738 return 1;
739
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100740 HA_SPIN_LOCK(BUF_WQ_LOCK, &buffer_wq_lock);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100741 LIST_ADDQ(&buffer_wq, &s->buffer_wait.list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100742 HA_SPIN_UNLOCK(BUF_WQ_LOCK, &buffer_wq_lock);
Willy Tarreau656859d2014-11-25 19:46:36 +0100743 return 0;
744}
745
746/* releases unused buffers after processing. Typically used at the end of the
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100747 * update() functions. It will try to wake up as many tasks/applets as the
748 * number of buffers that it releases. In practice, most often streams are
749 * blocked on a single buffer, so it makes sense to try to wake two up when two
750 * buffers are released at once.
Willy Tarreau656859d2014-11-25 19:46:36 +0100751 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200752void stream_release_buffers(struct stream *s)
Willy Tarreau656859d2014-11-25 19:46:36 +0100753{
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100754 int offer = 0;
Willy Tarreau656859d2014-11-25 19:46:36 +0100755
Willy Tarreau0c7ed5d2018-07-10 09:53:31 +0200756 if (c_size(&s->req) && c_empty(&s->req)) {
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100757 offer = 1;
758 b_free(&s->req.buf);
759 }
Willy Tarreau0c7ed5d2018-07-10 09:53:31 +0200760 if (c_size(&s->res) && c_empty(&s->res)) {
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100761 offer = 1;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100762 b_free(&s->res.buf);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100763 }
Willy Tarreau656859d2014-11-25 19:46:36 +0100764
Willy Tarreaubf883e02014-11-25 21:10:35 +0100765 /* if we're certain to have at least 1 buffer available, and there is
766 * someone waiting, we can wake up a waiter and offer them.
767 */
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100768 if (offer)
Olivier Houchard673867c2018-05-25 16:58:52 +0200769 offer_buffers(s, tasks_run_queue);
Willy Tarreau656859d2014-11-25 19:46:36 +0100770}
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200771
Willy Tarreau87b09662015-04-03 00:22:06 +0200772void stream_process_counters(struct stream *s)
Willy Tarreau30e71012007-11-26 20:15:35 +0100773{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200774 struct session *sess = s->sess;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100775 unsigned long long bytes;
Emeric Brun57056f02015-06-15 18:29:57 +0200776 void *ptr1,*ptr2;
Emeric Brun819fc6f2017-06-13 19:37:32 +0200777 struct stksess *ts;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100778 int i;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100779
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100780 bytes = s->req.total - s->logs.bytes_in;
781 s->logs.bytes_in = s->req.total;
782 if (bytes) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100783 _HA_ATOMIC_ADD(&sess->fe->fe_counters.bytes_in, bytes);
784 _HA_ATOMIC_ADD(&s->be->be_counters.bytes_in, bytes);
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100785
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100786 if (objt_server(s->target))
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100787 _HA_ATOMIC_ADD(&objt_server(s->target)->counters.bytes_in, bytes);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200788
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200789 if (sess->listener && sess->listener->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100790 _HA_ATOMIC_ADD(&sess->listener->counters->bytes_in, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200791
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100792 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200793 struct stkctr *stkctr = &s->stkctr[i];
794
Emeric Brun819fc6f2017-06-13 19:37:32 +0200795 ts = stkctr_entry(stkctr);
796 if (!ts) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200797 stkctr = &sess->stkctr[i];
Emeric Brun819fc6f2017-06-13 19:37:32 +0200798 ts = stkctr_entry(stkctr);
799 if (!ts)
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200800 continue;
801 }
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200802
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100803 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun819fc6f2017-06-13 19:37:32 +0200804 ptr1 = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_BYTES_IN_CNT);
Emeric Brun57056f02015-06-15 18:29:57 +0200805 if (ptr1)
806 stktable_data_cast(ptr1, bytes_in_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200807
Emeric Brun819fc6f2017-06-13 19:37:32 +0200808 ptr2 = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_BYTES_IN_RATE);
Emeric Brun57056f02015-06-15 18:29:57 +0200809 if (ptr2)
810 update_freq_ctr_period(&stktable_data_cast(ptr2, bytes_in_rate),
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200811 stkctr->table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u, bytes);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100812 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun57056f02015-06-15 18:29:57 +0200813
814 /* If data was modified, we need to touch to re-schedule sync */
815 if (ptr1 || ptr2)
Emeric Brun819fc6f2017-06-13 19:37:32 +0200816 stktable_touch_local(stkctr->table, ts, 0);
Willy Tarreau30e71012007-11-26 20:15:35 +0100817 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100818 }
819
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100820 bytes = s->res.total - s->logs.bytes_out;
821 s->logs.bytes_out = s->res.total;
822 if (bytes) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100823 _HA_ATOMIC_ADD(&sess->fe->fe_counters.bytes_out, bytes);
824 _HA_ATOMIC_ADD(&s->be->be_counters.bytes_out, bytes);
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100825
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100826 if (objt_server(s->target))
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100827 _HA_ATOMIC_ADD(&objt_server(s->target)->counters.bytes_out, bytes);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200828
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200829 if (sess->listener && sess->listener->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100830 _HA_ATOMIC_ADD(&sess->listener->counters->bytes_out, bytes);
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200831
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100832 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200833 struct stkctr *stkctr = &s->stkctr[i];
834
Emeric Brun819fc6f2017-06-13 19:37:32 +0200835 ts = stkctr_entry(stkctr);
836 if (!ts) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200837 stkctr = &sess->stkctr[i];
Emeric Brun819fc6f2017-06-13 19:37:32 +0200838 ts = stkctr_entry(stkctr);
839 if (!ts)
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200840 continue;
841 }
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200842
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100843 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun819fc6f2017-06-13 19:37:32 +0200844 ptr1 = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_BYTES_OUT_CNT);
Emeric Brun57056f02015-06-15 18:29:57 +0200845 if (ptr1)
846 stktable_data_cast(ptr1, bytes_out_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200847
Emeric Brun819fc6f2017-06-13 19:37:32 +0200848 ptr2 = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_BYTES_OUT_RATE);
Emeric Brun57056f02015-06-15 18:29:57 +0200849 if (ptr2)
850 update_freq_ctr_period(&stktable_data_cast(ptr2, bytes_out_rate),
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200851 stkctr->table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u, bytes);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100852 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun57056f02015-06-15 18:29:57 +0200853
854 /* If data was modified, we need to touch to re-schedule sync */
855 if (ptr1 || ptr2)
Emeric Brun819fc6f2017-06-13 19:37:32 +0200856 stktable_touch_local(stkctr->table, stkctr_entry(stkctr), 0);
Willy Tarreau30e71012007-11-26 20:15:35 +0100857 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100858 }
859}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200860
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100861/*
862 * This function handles the transition between the SI_ST_CON state and the
Willy Tarreau85e7d002010-05-31 11:57:51 +0200863 * SI_ST_EST state. It must only be called after switching from SI_ST_CON (or
Willy Tarreau4f283fa2019-06-05 14:34:03 +0200864 * SI_ST_INI or SI_ST_RDY) to SI_ST_EST, but only when a ->proto is defined.
Olivier Houchardaacc4052019-05-21 17:43:50 +0200865 * Note that it will switch the interface to SI_ST_DIS if we already have
866 * the CF_SHUTR flag, it means we were able to forward the request, and
867 * receive the response, before process_stream() had the opportunity to
868 * make the switch from SI_ST_CON to SI_ST_EST. When that happens, we want
Willy Tarreau3a9312a2020-01-09 18:43:15 +0100869 * to go through back_establish() anyway, to make sure the analysers run.
Willy Tarreaud66ed882019-06-05 18:02:04 +0200870 * Timeouts are cleared. Error are reported on the channel so that analysers
871 * can handle them.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100872 */
Willy Tarreau3a9312a2020-01-09 18:43:15 +0100873static void back_establish(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100874{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100875 struct stream_interface *si = &s->si[1];
Willy Tarreaud66ed882019-06-05 18:02:04 +0200876 struct conn_stream *srv_cs = objt_cs(si->end);
877 struct connection *conn = srv_cs ? srv_cs->conn : objt_conn(si->end);
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100878 struct channel *req = &s->req;
879 struct channel *rep = &s->res;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100880
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100881 DBG_TRACE_ENTER(STRM_EV_STRM_PROC|STRM_EV_SI_ST, s);
Willy Tarreaud66ed882019-06-05 18:02:04 +0200882 /* First, centralize the timers information, and clear any irrelevant
883 * timeout.
884 */
Willy Tarreau0e37f1c2013-12-31 23:06:46 +0100885 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreaud66ed882019-06-05 18:02:04 +0200886 si->exp = TICK_ETERNITY;
887 si->flags &= ~SI_FL_EXP;
888
889 /* errors faced after sending data need to be reported */
890 if (si->flags & SI_FL_ERR && req->flags & CF_WROTE_DATA) {
891 /* Don't add CF_WRITE_ERROR if we're here because
892 * early data were rejected by the server, or
893 * http_wait_for_response() will never be called
894 * to send a 425.
895 */
896 if (conn && conn->err_code != CO_ER_SSL_EARLY_FAILED)
897 req->flags |= CF_WRITE_ERROR;
898 rep->flags |= CF_READ_ERROR;
899 si->err_type = SI_ET_DATA_ERR;
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100900 DBG_TRACE_STATE("read/write error", STRM_EV_STRM_PROC|STRM_EV_SI_ST|STRM_EV_STRM_ERR, s);
Willy Tarreaud66ed882019-06-05 18:02:04 +0200901 }
902
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100903 if (objt_server(s->target))
904 health_adjust(objt_server(s->target), HANA_STATUS_L4_OK);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100905
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100906 if (s->be->mode == PR_MODE_TCP) { /* let's allow immediate data connection in this case */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100907 /* if the user wants to log as soon as possible, without counting
908 * bytes from the server, then this is the right moment. */
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200909 if (!LIST_ISEMPTY(&strm_fe(s)->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau66425e32018-07-25 06:55:12 +0200910 /* note: no pend_pos here, session is established */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100911 s->logs.t_close = s->logs.t_connect; /* to get a valid end date */
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100912 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100913 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100914 }
915 else {
Willy Tarreaud81ca042013-12-31 22:33:13 +0100916 rep->flags |= CF_READ_DONTWAIT; /* a single read is enough to get response headers */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100917 }
918
Willy Tarreau0007d0a2018-12-11 18:01:38 +0100919 rep->analysers |= strm_fe(s)->fe_rsp_ana | s->be->be_rsp_ana;
Christopher Faulet309c6412015-12-02 09:57:32 +0100920
Willy Tarreau0007d0a2018-12-11 18:01:38 +0100921 /* Be sure to filter response headers if the backend is an HTTP proxy
922 * and if there are filters attached to the stream. */
923 if (s->be->mode == PR_MODE_HTTP && HAS_FILTERS(s))
924 rep->analysers |= AN_RES_FLT_HTTP_HDRS;
Christopher Faulet309c6412015-12-02 09:57:32 +0100925
Willy Tarreau8bb2ffb2018-11-14 17:54:13 +0100926 si_rx_endp_more(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200927 rep->flags |= CF_READ_ATTACHED; /* producer is now attached */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200928 if (objt_cs(si->end)) {
Willy Tarreaud04e8582010-05-31 12:31:35 +0200929 /* real connections have timeouts */
930 req->wto = s->be->timeout.server;
931 rep->rto = s->be->timeout.server;
Olivier Houchard47e9a1a2018-11-07 17:55:19 +0100932 /* The connection is now established, try to read data from the
933 * underlying layer, and subscribe to recv events. We use a
934 * delayed recv here to give a chance to the data to flow back
935 * by the time we process other tasks.
936 */
937 si_chk_rcv(si);
Willy Tarreaud04e8582010-05-31 12:31:35 +0200938 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100939 req->wex = TICK_ETERNITY;
Olivier Houchard78595262019-07-26 14:54:34 +0200940 /* If we managed to get the whole response, and we don't have anything
941 * left to send, or can't, switch to SI_ST_DIS now. */
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100942 if (rep->flags & (CF_SHUTR | CF_SHUTW)) {
Olivier Houchardaacc4052019-05-21 17:43:50 +0200943 si->state = SI_ST_DIS;
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100944 DBG_TRACE_STATE("response channel shutdwn for read/write", STRM_EV_STRM_PROC|STRM_EV_SI_ST|STRM_EV_STRM_ERR, s);
945 }
946
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100947 DBG_TRACE_LEAVE(STRM_EV_STRM_PROC|STRM_EV_SI_ST, s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100948}
949
Willy Tarreau87b09662015-04-03 00:22:06 +0200950/* Set correct stream termination flags in case no analyser has done it. It
Simon Hormandec5be42011-06-08 09:19:07 +0900951 * also counts a failed request if the server state has not reached the request
952 * stage.
953 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200954static void sess_set_term_flags(struct stream *s)
Simon Hormandec5be42011-06-08 09:19:07 +0900955{
Willy Tarreaue7dff022015-04-03 01:14:29 +0200956 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +0200957 if (s->si[1].state == SI_ST_INI) {
958 /* anything before REQ in fact */
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100959 _HA_ATOMIC_ADD(&strm_fe(s)->fe_counters.failed_req, 1);
Willy Tarreau2c1068c2015-09-23 12:21:21 +0200960 if (strm_li(s) && strm_li(s)->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100961 _HA_ATOMIC_ADD(&strm_li(s)->counters->failed_req, 1);
Simon Hormandec5be42011-06-08 09:19:07 +0900962
Willy Tarreaue7dff022015-04-03 01:14:29 +0200963 s->flags |= SF_FINST_R;
Simon Hormandec5be42011-06-08 09:19:07 +0900964 }
965 else if (s->si[1].state == SI_ST_QUE)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200966 s->flags |= SF_FINST_Q;
Willy Tarreau4f283fa2019-06-05 14:34:03 +0200967 else if (si_state_in(s->si[1].state, SI_SB_REQ|SI_SB_TAR|SI_SB_ASS|SI_SB_CON|SI_SB_CER|SI_SB_RDY))
Willy Tarreaue7dff022015-04-03 01:14:29 +0200968 s->flags |= SF_FINST_C;
Simon Hormandec5be42011-06-08 09:19:07 +0900969 else if (s->si[1].state == SI_ST_EST || s->si[1].prev_state == SI_ST_EST)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200970 s->flags |= SF_FINST_D;
Simon Hormandec5be42011-06-08 09:19:07 +0900971 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200972 s->flags |= SF_FINST_L;
Simon Hormandec5be42011-06-08 09:19:07 +0900973 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100974}
975
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200976/* This function parses the use-service action ruleset. It executes
977 * the associated ACL and set an applet as a stream or txn final node.
978 * it returns ACT_RET_ERR if an error occurs, the proxy left in
979 * consistent state. It returns ACT_RET_STOP in succes case because
980 * use-service must be a terminal action. Returns ACT_RET_YIELD
981 * if the initialisation function require more data.
982 */
983enum act_return process_use_service(struct act_rule *rule, struct proxy *px,
984 struct session *sess, struct stream *s, int flags)
985
986{
987 struct appctx *appctx;
988
989 /* Initialises the applet if it is required. */
Christopher Faulet105ba6c2019-12-18 14:41:51 +0100990 if (flags & ACT_OPT_FIRST) {
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200991 /* Register applet. this function schedules the applet. */
992 s->target = &rule->applet.obj_type;
Willy Tarreau14bfe9a2018-12-19 15:19:27 +0100993 if (unlikely(!si_register_handler(&s->si[1], objt_applet(s->target))))
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200994 return ACT_RET_ERR;
995
996 /* Initialise the context. */
997 appctx = si_appctx(&s->si[1]);
998 memset(&appctx->ctx, 0, sizeof(appctx->ctx));
999 appctx->rule = rule;
1000 }
1001 else
1002 appctx = si_appctx(&s->si[1]);
1003
1004 /* Stops the applet sheduling, in case of the init function miss
1005 * some data.
1006 */
Willy Tarreau0cd3bd62018-11-06 18:46:37 +01001007 si_stop_get(&s->si[1]);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001008
1009 /* Call initialisation. */
1010 if (rule->applet.init)
1011 switch (rule->applet.init(appctx, px, s)) {
1012 case 0: return ACT_RET_ERR;
1013 case 1: break;
1014 default: return ACT_RET_YIELD;
1015 }
1016
Christopher Faulet2571bc62019-03-01 11:44:26 +01001017 if (rule->from != ACT_F_HTTP_REQ) {
1018 if (sess->fe == s->be) /* report it if the request was intercepted by the frontend */
1019 _HA_ATOMIC_ADD(&sess->fe->fe_counters.intercepted_req, 1);
1020
1021 /* The flag SF_ASSIGNED prevent from server assignment. */
1022 s->flags |= SF_ASSIGNED;
1023 }
1024
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001025 /* Now we can schedule the applet. */
Willy Tarreau0cd3bd62018-11-06 18:46:37 +01001026 si_cant_get(&s->si[1]);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001027 appctx_wakeup(appctx);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001028 return ACT_RET_STOP;
1029}
1030
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001031/* This stream analyser checks the switching rules and changes the backend
Willy Tarreau4de91492010-01-22 19:10:05 +01001032 * if appropriate. The default_backend rule is also considered, then the
1033 * target backend's forced persistence rules are also evaluated last if any.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001034 * It returns 1 if the processing can continue on next analysers, or zero if it
1035 * either needs more data or wants to immediately abort the request.
1036 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001037static int process_switching_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001038{
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001039 struct persist_rule *prst_rule;
Willy Tarreau192252e2015-04-04 01:47:55 +02001040 struct session *sess = s->sess;
1041 struct proxy *fe = sess->fe;
Willy Tarreau4de91492010-01-22 19:10:05 +01001042
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001043 req->analysers &= ~an_bit;
1044 req->analyse_exp = TICK_ETERNITY;
1045
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001046 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001047
1048 /* now check whether we have some switching rules for this request */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001049 if (!(s->flags & SF_BE_ASSIGNED)) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001050 struct switching_rule *rule;
1051
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001052 list_for_each_entry(rule, &fe->switching_rules, list) {
Willy Tarreauf51658d2014-04-23 01:21:56 +02001053 int ret = 1;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001054
Willy Tarreauf51658d2014-04-23 01:21:56 +02001055 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001056 ret = acl_exec_cond(rule->cond, fe, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001057 ret = acl_pass(ret);
1058 if (rule->cond->pol == ACL_COND_UNLESS)
1059 ret = !ret;
1060 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001061
1062 if (ret) {
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001063 /* If the backend name is dynamic, try to resolve the name.
1064 * If we can't resolve the name, or if any error occurs, break
1065 * the loop and fallback to the default backend.
1066 */
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001067 struct proxy *backend = NULL;
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001068
1069 if (rule->dynamic) {
Willy Tarreau83061a82018-07-13 11:56:34 +02001070 struct buffer *tmp;
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001071
1072 tmp = alloc_trash_chunk();
1073 if (!tmp)
1074 goto sw_failed;
1075
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001076 if (build_logline(s, tmp->area, tmp->size, &rule->be.expr))
1077 backend = proxy_be_by_name(tmp->area);
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001078
1079 free_trash_chunk(tmp);
1080 tmp = NULL;
1081
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001082 if (!backend)
1083 break;
1084 }
1085 else
1086 backend = rule->be.backend;
1087
Willy Tarreau87b09662015-04-03 00:22:06 +02001088 if (!stream_set_backend(s, backend))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001089 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001090 break;
1091 }
1092 }
1093
1094 /* To ensure correct connection accounting on the backend, we
1095 * have to assign one if it was not set (eg: a listen). This
1096 * measure also takes care of correctly setting the default
1097 * backend if any.
1098 */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001099 if (!(s->flags & SF_BE_ASSIGNED))
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001100 if (!stream_set_backend(s, fe->defbe.be ? fe->defbe.be : s->be))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001101 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001102 }
1103
Willy Tarreaufb356202010-08-03 14:02:05 +02001104 /* 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 +02001105 if (fe == s->be) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001106 s->req.analysers &= ~AN_REQ_INSPECT_BE;
1107 s->req.analysers &= ~AN_REQ_HTTP_PROCESS_BE;
Christopher Faulet0184ea72017-01-05 14:06:34 +01001108 s->req.analysers &= ~AN_REQ_FLT_START_BE;
Willy Tarreaufb356202010-08-03 14:02:05 +02001109 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001110
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001111 /* 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 +02001112 * persistence rule, and report that in the stream.
Willy Tarreau4de91492010-01-22 19:10:05 +01001113 */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001114 list_for_each_entry(prst_rule, &s->be->persist_rules, list) {
Willy Tarreau4de91492010-01-22 19:10:05 +01001115 int ret = 1;
1116
1117 if (prst_rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001118 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 +01001119 ret = acl_pass(ret);
1120 if (prst_rule->cond->pol == ACL_COND_UNLESS)
1121 ret = !ret;
1122 }
1123
1124 if (ret) {
1125 /* no rule, or the rule matches */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001126 if (prst_rule->type == PERSIST_TYPE_FORCE) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001127 s->flags |= SF_FORCE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001128 } else {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001129 s->flags |= SF_IGNORE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001130 }
Willy Tarreau4de91492010-01-22 19:10:05 +01001131 break;
1132 }
1133 }
1134
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001135 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001136 return 1;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001137
1138 sw_failed:
1139 /* immediately abort this request in case of allocation failure */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001140 channel_abort(&s->req);
1141 channel_abort(&s->res);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001142
Willy Tarreaue7dff022015-04-03 01:14:29 +02001143 if (!(s->flags & SF_ERR_MASK))
1144 s->flags |= SF_ERR_RESOURCE;
1145 if (!(s->flags & SF_FINST_MASK))
1146 s->flags |= SF_FINST_R;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001147
Willy Tarreaueee5b512015-04-03 23:46:31 +02001148 if (s->txn)
1149 s->txn->status = 500;
Christopher Faulet0184ea72017-01-05 14:06:34 +01001150 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001151 s->req.analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001152 DBG_TRACE_DEVEL("leaving on error", STRM_EV_STRM_ANA|STRM_EV_STRM_ERR, s);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001153 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001154}
1155
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001156/* This stream analyser works on a request. It applies all use-server rules on
1157 * it then returns 1. The data must already be present in the buffer otherwise
1158 * they won't match. It always returns 1.
1159 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001160static int process_server_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001161{
1162 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001163 struct session *sess = s->sess;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001164 struct server_rule *rule;
1165
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001166 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001167
Willy Tarreaue7dff022015-04-03 01:14:29 +02001168 if (!(s->flags & SF_ASSIGNED)) {
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001169 list_for_each_entry(rule, &px->server_rules, list) {
1170 int ret;
1171
Willy Tarreau192252e2015-04-04 01:47:55 +02001172 ret = acl_exec_cond(rule->cond, s->be, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001173 ret = acl_pass(ret);
1174 if (rule->cond->pol == ACL_COND_UNLESS)
1175 ret = !ret;
1176
1177 if (ret) {
1178 struct server *srv = rule->srv.ptr;
1179
Emeric Brun52a91d32017-08-31 14:41:55 +02001180 if ((srv->cur_state != SRV_ST_STOPPED) ||
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001181 (px->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +02001182 (s->flags & SF_FORCE_PRST)) {
1183 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001184 s->target = &srv->obj_type;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001185 break;
1186 }
1187 /* if the server is not UP, let's go on with next rules
1188 * just in case another one is suited.
1189 */
1190 }
1191 }
1192 }
1193
1194 req->analysers &= ~an_bit;
1195 req->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001196 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001197 return 1;
1198}
1199
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001200static inline void sticking_rule_find_target(struct stream *s,
1201 struct stktable *t, struct stksess *ts)
1202{
1203 struct proxy *px = s->be;
1204 struct eb32_node *node;
1205 struct dict_entry *de;
1206 void *ptr;
1207 struct server *srv;
1208
1209 /* Look for the server name previously stored in <t> stick-table */
1210 HA_RWLOCK_RDLOCK(STK_SESS_LOCK, &ts->lock);
1211 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_NAME);
1212 de = stktable_data_cast(ptr, server_name);
1213 HA_RWLOCK_RDUNLOCK(STK_SESS_LOCK, &ts->lock);
1214
1215 if (de) {
1216 struct ebpt_node *name;
1217
1218 name = ebis_lookup(&px->conf.used_server_name, de->value.key);
1219 if (name) {
1220 srv = container_of(name, struct server, conf.name);
1221 goto found;
1222 }
1223 }
1224
1225 /* Look for the server ID */
1226 HA_RWLOCK_RDLOCK(STK_SESS_LOCK, &ts->lock);
1227 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_ID);
1228 node = eb32_lookup(&px->conf.used_server_id, stktable_data_cast(ptr, server_id));
1229 HA_RWLOCK_RDUNLOCK(STK_SESS_LOCK, &ts->lock);
1230
1231 if (!node)
1232 return;
1233
1234 srv = container_of(node, struct server, conf.id);
1235 found:
1236 if ((srv->cur_state != SRV_ST_STOPPED) ||
1237 (px->options & PR_O_PERSIST) || (s->flags & SF_FORCE_PRST)) {
1238 s->flags |= SF_DIRECT | SF_ASSIGNED;
1239 s->target = &srv->obj_type;
1240 }
1241}
1242
Emeric Brun1d33b292010-01-04 15:47:17 +01001243/* This stream analyser works on a request. It applies all sticking rules on
1244 * it then returns 1. The data must already be present in the buffer otherwise
1245 * they won't match. It always returns 1.
1246 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001247static int process_sticking_rules(struct stream *s, struct channel *req, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001248{
1249 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001250 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001251 struct sticking_rule *rule;
1252
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001253 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001254
1255 list_for_each_entry(rule, &px->sticking_rules, list) {
1256 int ret = 1 ;
1257 int i;
1258
Willy Tarreau9667a802013-12-09 12:52:13 +01001259 /* Only the first stick store-request of each table is applied
1260 * and other ones are ignored. The purpose is to allow complex
1261 * configurations which look for multiple entries by decreasing
1262 * order of precision and to stop at the first which matches.
1263 * An example could be a store of the IP address from an HTTP
1264 * header first, then from the source if not found.
1265 */
Jerome Magninbee00ad2020-01-16 17:37:21 +01001266 if (rule->flags & STK_IS_STORE) {
1267 for (i = 0; i < s->store_count; i++) {
1268 if (rule->table.t == s->store[i].table)
1269 break;
1270 }
Emeric Brun1d33b292010-01-04 15:47:17 +01001271
Jerome Magninbee00ad2020-01-16 17:37:21 +01001272 if (i != s->store_count)
1273 continue;
1274 }
Emeric Brun1d33b292010-01-04 15:47:17 +01001275
1276 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001277 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001278 ret = acl_pass(ret);
1279 if (rule->cond->pol == ACL_COND_UNLESS)
1280 ret = !ret;
1281 }
1282
1283 if (ret) {
1284 struct stktable_key *key;
1285
Willy Tarreau192252e2015-04-04 01:47:55 +02001286 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 +01001287 if (!key)
1288 continue;
1289
1290 if (rule->flags & STK_IS_MATCH) {
1291 struct stksess *ts;
1292
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001293 if ((ts = stktable_lookup_key(rule->table.t, key)) != NULL) {
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001294 if (!(s->flags & SF_ASSIGNED))
1295 sticking_rule_find_target(s, rule->table.t, ts);
Emeric Brun819fc6f2017-06-13 19:37:32 +02001296 stktable_touch_local(rule->table.t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001297 }
1298 }
1299 if (rule->flags & STK_IS_STORE) {
1300 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
1301 struct stksess *ts;
1302
1303 ts = stksess_new(rule->table.t, key);
1304 if (ts) {
1305 s->store[s->store_count].table = rule->table.t;
1306 s->store[s->store_count++].ts = ts;
1307 }
1308 }
1309 }
1310 }
1311 }
1312
1313 req->analysers &= ~an_bit;
1314 req->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001315 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001316 return 1;
1317}
1318
1319/* This stream analyser works on a response. It applies all store rules on it
1320 * then returns 1. The data must already be present in the buffer otherwise
1321 * they won't match. It always returns 1.
1322 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001323static int process_store_rules(struct stream *s, struct channel *rep, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001324{
1325 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001326 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001327 struct sticking_rule *rule;
1328 int i;
Willy Tarreau9667a802013-12-09 12:52:13 +01001329 int nbreq = s->store_count;
Emeric Brun1d33b292010-01-04 15:47:17 +01001330
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001331 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001332
1333 list_for_each_entry(rule, &px->storersp_rules, list) {
1334 int ret = 1 ;
Emeric Brun1d33b292010-01-04 15:47:17 +01001335
Willy Tarreau9667a802013-12-09 12:52:13 +01001336 /* Only the first stick store-response of each table is applied
1337 * and other ones are ignored. The purpose is to allow complex
1338 * configurations which look for multiple entries by decreasing
1339 * order of precision and to stop at the first which matches.
1340 * An example could be a store of a set-cookie value, with a
1341 * fallback to a parameter found in a 302 redirect.
1342 *
1343 * The store-response rules are not allowed to override the
1344 * store-request rules for the same table, but they may coexist.
1345 * Thus we can have up to one store-request entry and one store-
1346 * response entry for the same table at any time.
1347 */
1348 for (i = nbreq; i < s->store_count; i++) {
1349 if (rule->table.t == s->store[i].table)
1350 break;
1351 }
1352
1353 /* skip existing entries for this table */
1354 if (i < s->store_count)
1355 continue;
1356
Emeric Brun1d33b292010-01-04 15:47:17 +01001357 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001358 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_RES|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001359 ret = acl_pass(ret);
1360 if (rule->cond->pol == ACL_COND_UNLESS)
1361 ret = !ret;
1362 }
1363
1364 if (ret) {
1365 struct stktable_key *key;
1366
Willy Tarreau192252e2015-04-04 01:47:55 +02001367 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 +01001368 if (!key)
1369 continue;
1370
Willy Tarreau37e340c2013-12-06 23:05:21 +01001371 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001372 struct stksess *ts;
1373
1374 ts = stksess_new(rule->table.t, key);
1375 if (ts) {
1376 s->store[s->store_count].table = rule->table.t;
Emeric Brun1d33b292010-01-04 15:47:17 +01001377 s->store[s->store_count++].ts = ts;
1378 }
1379 }
1380 }
1381 }
1382
1383 /* process store request and store response */
1384 for (i = 0; i < s->store_count; i++) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001385 struct stksess *ts;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001386 void *ptr;
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001387 struct dict_entry *de;
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001388
Willy Tarreauc93cd162014-05-13 15:54:22 +02001389 if (objt_server(s->target) && objt_server(s->target)->flags & SRV_F_NON_STICK) {
Simon Hormanfa461682011-06-25 09:39:49 +09001390 stksess_free(s->store[i].table, s->store[i].ts);
1391 s->store[i].ts = NULL;
1392 continue;
1393 }
1394
Emeric Brun819fc6f2017-06-13 19:37:32 +02001395 ts = stktable_set_entry(s->store[i].table, s->store[i].ts);
1396 if (ts != s->store[i].ts) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001397 /* the entry already existed, we can free ours */
Emeric Brun1d33b292010-01-04 15:47:17 +01001398 stksess_free(s->store[i].table, s->store[i].ts);
Emeric Brun1d33b292010-01-04 15:47:17 +01001399 }
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001400 s->store[i].ts = NULL;
Emeric Brun819fc6f2017-06-13 19:37:32 +02001401
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001402 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Willy Tarreaub8d42d02018-09-20 11:11:15 +02001403 ptr = __stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_ID);
1404 stktable_data_cast(ptr, server_id) = __objt_server(s->target)->puid;
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001405 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001406
1407 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
1408 de = dict_insert(&server_name_dict, __objt_server(s->target)->id);
1409 if (de) {
1410 ptr = __stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_NAME);
1411 stktable_data_cast(ptr, server_name) = de;
1412 }
1413 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
1414
Emeric Brun819fc6f2017-06-13 19:37:32 +02001415 stktable_touch_local(s->store[i].table, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001416 }
Willy Tarreau2a164ee2010-06-18 09:57:45 +02001417 s->store_count = 0; /* everything is stored */
Emeric Brun1d33b292010-01-04 15:47:17 +01001418
1419 rep->analysers &= ~an_bit;
1420 rep->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001421
1422 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001423 return 1;
1424}
1425
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001426/* This macro is very specific to the function below. See the comments in
Willy Tarreau87b09662015-04-03 00:22:06 +02001427 * process_stream() below to understand the logic and the tests.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001428 */
1429#define UPDATE_ANALYSERS(real, list, back, flag) { \
1430 list = (((list) & ~(flag)) | ~(back)) & (real); \
1431 back = real; \
1432 if (!(list)) \
1433 break; \
1434 if (((list) ^ ((list) & ((list) - 1))) < (flag)) \
1435 continue; \
1436}
1437
Christopher Fauleta9215b72016-05-11 17:06:28 +02001438/* These 2 following macros call an analayzer for the specified channel if the
1439 * right flag is set. The first one is used for "filterable" analyzers. If a
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001440 * stream has some registered filters, pre and post analyaze callbacks are
Christopher Faulet0184ea72017-01-05 14:06:34 +01001441 * called. The second are used for other analyzers (AN_REQ/RES_FLT_* and
Christopher Fauleta9215b72016-05-11 17:06:28 +02001442 * AN_REQ/RES_HTTP_XFER_BODY) */
1443#define FLT_ANALYZE(strm, chn, fun, list, back, flag, ...) \
1444 { \
1445 if ((list) & (flag)) { \
1446 if (HAS_FILTERS(strm)) { \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001447 if (!flt_pre_analyze((strm), (chn), (flag))) \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001448 break; \
1449 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1450 break; \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001451 if (!flt_post_analyze((strm), (chn), (flag))) \
1452 break; \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001453 } \
1454 else { \
1455 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1456 break; \
1457 } \
1458 UPDATE_ANALYSERS((chn)->analysers, (list), \
1459 (back), (flag)); \
1460 } \
1461 }
1462
1463#define ANALYZE(strm, chn, fun, list, back, flag, ...) \
1464 { \
1465 if ((list) & (flag)) { \
1466 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1467 break; \
1468 UPDATE_ANALYSERS((chn)->analysers, (list), \
1469 (back), (flag)); \
1470 } \
1471 }
1472
Willy Tarreau87b09662015-04-03 00:22:06 +02001473/* Processes the client, server, request and response jobs of a stream task,
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001474 * then puts it back to the wait queue in a clean state, or cleans up its
1475 * resources if it must be deleted. Returns in <next> the date the task wants
1476 * to be woken up, or TICK_ETERNITY. In order not to call all functions for
1477 * nothing too many times, the request and response buffers flags are monitored
1478 * and each function is called only if at least another function has changed at
1479 * least one flag it is interested in.
1480 */
Olivier Houchard9f6af332018-05-25 14:04:04 +02001481struct task *process_stream(struct task *t, void *context, unsigned short state)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001482{
Willy Tarreau827aee92011-03-10 16:55:02 +01001483 struct server *srv;
Olivier Houchard9f6af332018-05-25 14:04:04 +02001484 struct stream *s = context;
Willy Tarreaufb0afa72015-04-03 14:46:27 +02001485 struct session *sess = s->sess;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001486 unsigned int rqf_last, rpf_last;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001487 unsigned int rq_prod_last, rq_cons_last;
1488 unsigned int rp_cons_last, rp_prod_last;
Willy Tarreau576507f2010-01-07 00:09:04 +01001489 unsigned int req_ana_back;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001490 struct channel *req, *res;
1491 struct stream_interface *si_f, *si_b;
Willy Tarreau3d07a162019-04-25 19:15:20 +02001492 unsigned int rate;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001493
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001494 DBG_TRACE_ENTER(STRM_EV_STRM_PROC, s);
1495
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01001496 activity[tid].stream++;
1497
Willy Tarreau8f128b42014-11-28 15:07:47 +01001498 req = &s->req;
1499 res = &s->res;
1500
1501 si_f = &s->si[0];
1502 si_b = &s->si[1];
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001503
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001504 /* First, attempt to receive pending data from I/O layers */
Willy Tarreauade64782018-11-17 19:51:07 +01001505 si_sync_recv(si_f);
1506 si_sync_recv(si_b);
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001507
Willy Tarreau3d07a162019-04-25 19:15:20 +02001508 rate = update_freq_ctr(&s->call_rate, 1);
1509 if (rate >= 100000 && s->call_rate.prev_ctr) { // make sure to wait at least a full second
1510 stream_dump_and_crash(&s->obj_type, read_freq_ctr(&s->call_rate));
1511 }
Olivier Houchardc2aa7112018-09-11 18:27:21 +02001512
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001513 /* this data may be no longer valid, clear it */
Willy Tarreaueee5b512015-04-03 23:46:31 +02001514 if (s->txn)
1515 memset(&s->txn->auth, 0, sizeof(s->txn->auth));
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001516
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02001517 /* This flag must explicitly be set every time */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001518 req->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
1519 res->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001520
1521 /* Keep a copy of req/rep flags so that we can detect shutdowns */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001522 rqf_last = req->flags & ~CF_MASK_ANALYSER;
1523 rpf_last = res->flags & ~CF_MASK_ANALYSER;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001524
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001525 /* we don't want the stream interface functions to recursively wake us up */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001526 si_f->flags |= SI_FL_DONT_WAKE;
1527 si_b->flags |= SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001528
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001529 /* update pending events */
Olivier Houchard9f6af332018-05-25 14:04:04 +02001530 s->pending_events |= (state & TASK_WOKEN_ANY);
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001531
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001532 /* 1a: Check for low level timeouts if needed. We just set a flag on
1533 * stream interfaces when their timeouts have expired.
1534 */
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001535 if (unlikely(s->pending_events & TASK_WOKEN_TIMER)) {
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001536 si_check_timeouts(si_f);
1537 si_check_timeouts(si_b);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001538
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001539 /* check channel timeouts, and close the corresponding stream interfaces
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001540 * for future reads or writes. Note: this will also concern upper layers
1541 * but we do not touch any other flag. We must be careful and correctly
1542 * detect state changes when calling them.
1543 */
1544
Willy Tarreau8f128b42014-11-28 15:07:47 +01001545 channel_check_timeouts(req);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001546
Willy Tarreau8f128b42014-11-28 15:07:47 +01001547 if (unlikely((req->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1548 si_b->flags |= SI_FL_NOLINGER;
1549 si_shutw(si_b);
Willy Tarreau14641402009-12-29 14:49:56 +01001550 }
1551
Willy Tarreau8f128b42014-11-28 15:07:47 +01001552 if (unlikely((req->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1553 if (si_f->flags & SI_FL_NOHALF)
1554 si_f->flags |= SI_FL_NOLINGER;
1555 si_shutr(si_f);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001556 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001557
Willy Tarreau8f128b42014-11-28 15:07:47 +01001558 channel_check_timeouts(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001559
Willy Tarreau8f128b42014-11-28 15:07:47 +01001560 if (unlikely((res->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1561 si_f->flags |= SI_FL_NOLINGER;
1562 si_shutw(si_f);
Willy Tarreau14641402009-12-29 14:49:56 +01001563 }
1564
Willy Tarreau8f128b42014-11-28 15:07:47 +01001565 if (unlikely((res->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1566 if (si_b->flags & SI_FL_NOHALF)
1567 si_b->flags |= SI_FL_NOLINGER;
1568 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001569 }
Willy Tarreau798f4322012-11-08 14:49:17 +01001570
Christopher Fauleta00d8172016-11-10 14:58:05 +01001571 if (HAS_FILTERS(s))
1572 flt_stream_check_timeouts(s);
1573
Willy Tarreau798f4322012-11-08 14:49:17 +01001574 /* Once in a while we're woken up because the task expires. But
1575 * this does not necessarily mean that a timeout has been reached.
Willy Tarreau87b09662015-04-03 00:22:06 +02001576 * So let's not run a whole stream processing if only an expiration
Willy Tarreau798f4322012-11-08 14:49:17 +01001577 * timeout needs to be refreshed.
1578 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001579 if (!((req->flags | res->flags) &
Willy Tarreau798f4322012-11-08 14:49:17 +01001580 (CF_SHUTR|CF_READ_ACTIVITY|CF_READ_TIMEOUT|CF_SHUTW|
Willy Tarreauede3d882018-10-24 17:17:56 +02001581 CF_WRITE_ACTIVITY|CF_WRITE_TIMEOUT|CF_ANA_TIMEOUT)) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01001582 !((si_f->flags | si_b->flags) & (SI_FL_EXP|SI_FL_ERR)) &&
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001583 ((s->pending_events & TASK_WOKEN_ANY) == TASK_WOKEN_TIMER)) {
Willy Tarreau5fb04712016-05-04 10:18:37 +02001584 si_f->flags &= ~SI_FL_DONT_WAKE;
1585 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau798f4322012-11-08 14:49:17 +01001586 goto update_exp_and_leave;
Willy Tarreau5fb04712016-05-04 10:18:37 +02001587 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001588 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001589
Willy Tarreau829bd472019-06-06 09:17:23 +02001590 resync_stream_interface:
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001591 /* below we may emit error messages so we have to ensure that we have
1592 * our buffers properly allocated.
1593 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001594 if (!stream_alloc_work_buffer(s)) {
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001595 /* No buffer available, we've been subscribed to the list of
1596 * buffer waiters, let's wait for our turn.
1597 */
Willy Tarreau5fb04712016-05-04 10:18:37 +02001598 si_f->flags &= ~SI_FL_DONT_WAKE;
1599 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001600 goto update_exp_and_leave;
1601 }
1602
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001603 /* 1b: check for low-level errors reported at the stream interface.
1604 * First we check if it's a retryable error (in which case we don't
1605 * want to tell the buffer). Otherwise we report the error one level
1606 * upper by setting flags into the buffers. Note that the side towards
1607 * the client cannot have connect (hence retryable) errors. Also, the
1608 * connection setup code must be able to deal with any type of abort.
1609 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001610 srv = objt_server(s->target);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001611 if (unlikely(si_f->flags & SI_FL_ERR)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001612 if (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001613 si_shutr(si_f);
1614 si_shutw(si_f);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001615 si_report_error(si_f);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001616 if (!(req->analysers) && !(res->analysers)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001617 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1618 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001619 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001620 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001621 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001622 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001623 if (!(s->flags & SF_ERR_MASK))
1624 s->flags |= SF_ERR_CLICL;
1625 if (!(s->flags & SF_FINST_MASK))
1626 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001627 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001628 }
1629 }
1630
Willy Tarreau8f128b42014-11-28 15:07:47 +01001631 if (unlikely(si_b->flags & SI_FL_ERR)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001632 if (si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001633 si_shutr(si_b);
1634 si_shutw(si_b);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001635 si_report_error(si_b);
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001636 _HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001637 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001638 _HA_ATOMIC_ADD(&srv->counters.failed_resp, 1);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001639 if (!(req->analysers) && !(res->analysers)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001640 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1641 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001642 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001643 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001644 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001645 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001646 if (!(s->flags & SF_ERR_MASK))
1647 s->flags |= SF_ERR_SRVCL;
1648 if (!(s->flags & SF_FINST_MASK))
1649 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001650 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001651 }
1652 /* note: maybe we should process connection errors here ? */
1653 }
1654
Willy Tarreau4f283fa2019-06-05 14:34:03 +02001655 if (si_state_in(si_b->state, SI_SB_CON|SI_SB_RDY)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001656 /* we were trying to establish a connection on the server side,
1657 * maybe it succeeded, maybe it failed, maybe we timed out, ...
1658 */
Willy Tarreaud66ed882019-06-05 18:02:04 +02001659 if (si_b->state == SI_ST_RDY)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001660 back_handle_st_rdy(s);
Willy Tarreaud66ed882019-06-05 18:02:04 +02001661 else if (si_b->state == SI_ST_CON)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001662 back_handle_st_con(s);
Willy Tarreaud66ed882019-06-05 18:02:04 +02001663
1664 if (si_b->state == SI_ST_CER)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001665 back_handle_st_cer(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001666 else if (si_b->state == SI_ST_EST)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001667 back_establish(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001668
1669 /* state is now one of SI_ST_CON (still in progress), SI_ST_EST
1670 * (established), SI_ST_DIS (abort), SI_ST_CLO (last error),
1671 * SI_ST_ASS/SI_ST_TAR/SI_ST_REQ for retryable errors.
1672 */
1673 }
1674
Willy Tarreau8f128b42014-11-28 15:07:47 +01001675 rq_prod_last = si_f->state;
1676 rq_cons_last = si_b->state;
1677 rp_cons_last = si_f->state;
1678 rp_prod_last = si_b->state;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001679
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001680 /* Check for connection closure */
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001681 DBG_TRACE_POINT(STRM_EV_STRM_PROC, s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001682
1683 /* nothing special to be done on client side */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001684 if (unlikely(si_f->state == SI_ST_DIS))
1685 si_f->state = SI_ST_CLO;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001686
1687 /* When a server-side connection is released, we have to count it and
1688 * check for pending connections on this server.
1689 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001690 if (unlikely(si_b->state == SI_ST_DIS)) {
1691 si_b->state = SI_ST_CLO;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001692 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01001693 if (srv) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001694 if (s->flags & SF_CURR_SESS) {
1695 s->flags &= ~SF_CURR_SESS;
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001696 _HA_ATOMIC_SUB(&srv->cur_sess, 1);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001697 }
1698 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001699 if (may_dequeue_tasks(srv, s->be))
1700 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001701 }
1702 }
1703
1704 /*
1705 * Note: of the transient states (REQ, CER, DIS), only REQ may remain
1706 * at this point.
1707 */
1708
Willy Tarreau0be0ef92009-03-08 19:20:25 +01001709 resync_request:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001710 /* Analyse request */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001711 if (((req->flags & ~rqf_last) & CF_MASK_ANALYSER) ||
1712 ((req->flags ^ rqf_last) & CF_MASK_STATIC) ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01001713 (req->analysers && (req->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01001714 si_f->state != rq_prod_last ||
1715 si_b->state != rq_cons_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001716 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001717 unsigned int flags = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001718
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001719 if (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001720 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001721 unsigned int ana_list;
1722 unsigned int ana_back;
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001723
Willy Tarreau90deb182010-01-07 00:20:41 +01001724 /* it's up to the analysers to stop new connections,
1725 * disable reading or closing. Note: if an analyser
1726 * disables any of these bits, it is responsible for
1727 * enabling them again when it disables itself, so
1728 * that other analysers are called in similar conditions.
1729 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001730 channel_auto_read(req);
1731 channel_auto_connect(req);
1732 channel_auto_close(req);
Willy Tarreauedcf6682008-11-30 23:15:34 +01001733
1734 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01001735 * req->analysers, following the bit order from LSB
Willy Tarreauedcf6682008-11-30 23:15:34 +01001736 * to MSB. The analysers must remove themselves from
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001737 * the list when not needed. Any analyser may return 0
1738 * to break out of the loop, either because of missing
1739 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02001740 * kill the stream. We loop at least once through each
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001741 * analyser, and we may loop again if other analysers
1742 * are added in the middle.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001743 *
1744 * We build a list of analysers to run. We evaluate all
1745 * of these analysers in the order of the lower bit to
1746 * the higher bit. This ordering is very important.
1747 * An analyser will often add/remove other analysers,
1748 * including itself. Any changes to itself have no effect
1749 * on the loop. If it removes any other analysers, we
1750 * want those analysers not to be called anymore during
1751 * this loop. If it adds an analyser that is located
1752 * after itself, we want it to be scheduled for being
1753 * processed during the loop. If it adds an analyser
1754 * which is located before it, we want it to switch to
1755 * it immediately, even if it has already been called
1756 * once but removed since.
1757 *
1758 * In order to achieve this, we compare the analyser
1759 * list after the call with a copy of it before the
1760 * call. The work list is fed with analyser bits that
1761 * appeared during the call. Then we compare previous
1762 * work list with the new one, and check the bits that
1763 * appeared. If the lowest of these bits is lower than
1764 * the current bit, it means we have enabled a previous
1765 * analyser and must immediately loop again.
Willy Tarreauedcf6682008-11-30 23:15:34 +01001766 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001767
Willy Tarreau8f128b42014-11-28 15:07:47 +01001768 ana_list = ana_back = req->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001769 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001770 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01001771 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_FE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001772 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_FE);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001773 FLT_ANALYZE(s, req, http_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_HTTP);
1774 FLT_ANALYZE(s, req, http_wait_for_request_body, ana_list, ana_back, AN_REQ_HTTP_BODY);
1775 FLT_ANALYZE(s, req, http_process_req_common, ana_list, ana_back, AN_REQ_HTTP_PROCESS_FE, sess->fe);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001776 FLT_ANALYZE(s, req, process_switching_rules, ana_list, ana_back, AN_REQ_SWITCHING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001777 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001778 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_BE);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001779 FLT_ANALYZE(s, req, http_process_req_common, ana_list, ana_back, AN_REQ_HTTP_PROCESS_BE, s->be);
1780 FLT_ANALYZE(s, req, http_process_tarpit, ana_list, ana_back, AN_REQ_HTTP_TARPIT);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001781 FLT_ANALYZE(s, req, process_server_rules, ana_list, ana_back, AN_REQ_SRV_RULES);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001782 FLT_ANALYZE(s, req, http_process_request, ana_list, ana_back, AN_REQ_HTTP_INNER);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001783 FLT_ANALYZE(s, req, tcp_persist_rdp_cookie, ana_list, ana_back, AN_REQ_PRST_RDP_COOKIE);
1784 FLT_ANALYZE(s, req, process_sticking_rules, ana_list, ana_back, AN_REQ_STICKING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001785 ANALYZE (s, req, flt_analyze_http_headers, ana_list, ana_back, AN_REQ_FLT_HTTP_HDRS);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001786 ANALYZE (s, req, http_request_forward_body, ana_list, ana_back, AN_REQ_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02001787 ANALYZE (s, req, pcli_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001788 ANALYZE (s, req, flt_xfer_data, ana_list, ana_back, AN_REQ_FLT_XFER_DATA);
1789 ANALYZE (s, req, flt_end_analyze, ana_list, ana_back, AN_REQ_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01001790 break;
1791 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001792 }
Willy Tarreau84455332009-03-15 22:34:05 +01001793
Willy Tarreau8f128b42014-11-28 15:07:47 +01001794 rq_prod_last = si_f->state;
1795 rq_cons_last = si_b->state;
1796 req->flags &= ~CF_WAKE_ONCE;
1797 rqf_last = req->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001798
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02001799 if ((req->flags ^ flags) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001800 goto resync_request;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001801 }
1802
Willy Tarreau576507f2010-01-07 00:09:04 +01001803 /* we'll monitor the request analysers while parsing the response,
1804 * because some response analysers may indirectly enable new request
1805 * analysers (eg: HTTP keep-alive).
1806 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001807 req_ana_back = req->analysers;
Willy Tarreau576507f2010-01-07 00:09:04 +01001808
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001809 resync_response:
1810 /* Analyse response */
1811
Willy Tarreau8f128b42014-11-28 15:07:47 +01001812 if (((res->flags & ~rpf_last) & CF_MASK_ANALYSER) ||
1813 (res->flags ^ rpf_last) & CF_MASK_STATIC ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01001814 (res->analysers && (res->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01001815 si_f->state != rp_cons_last ||
1816 si_b->state != rp_prod_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001817 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001818 unsigned int flags = res->flags;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001819
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001820 if (si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001821 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001822 unsigned int ana_list;
1823 unsigned int ana_back;
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001824
Willy Tarreau90deb182010-01-07 00:20:41 +01001825 /* it's up to the analysers to stop disable reading or
1826 * closing. Note: if an analyser disables any of these
1827 * bits, it is responsible for enabling them again when
1828 * it disables itself, so that other analysers are called
1829 * in similar conditions.
1830 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001831 channel_auto_read(res);
1832 channel_auto_close(res);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001833
1834 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01001835 * res->analysers, following the bit order from LSB
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001836 * to MSB. The analysers must remove themselves from
1837 * the list when not needed. Any analyser may return 0
1838 * to break out of the loop, either because of missing
1839 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02001840 * kill the stream. We loop at least once through each
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001841 * analyser, and we may loop again if other analysers
1842 * are added in the middle.
1843 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001844
Willy Tarreau8f128b42014-11-28 15:07:47 +01001845 ana_list = ana_back = res->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001846 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001847 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01001848 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_FE);
1849 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001850 FLT_ANALYZE(s, res, tcp_inspect_response, ana_list, ana_back, AN_RES_INSPECT);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001851 FLT_ANALYZE(s, res, http_wait_for_response, ana_list, ana_back, AN_RES_WAIT_HTTP);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001852 FLT_ANALYZE(s, res, process_store_rules, ana_list, ana_back, AN_RES_STORE_RULES);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001853 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 +01001854 ANALYZE (s, res, flt_analyze_http_headers, ana_list, ana_back, AN_RES_FLT_HTTP_HDRS);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001855 ANALYZE (s, res, http_response_forward_body, ana_list, ana_back, AN_RES_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02001856 ANALYZE (s, res, pcli_wait_for_response, ana_list, ana_back, AN_RES_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001857 ANALYZE (s, res, flt_xfer_data, ana_list, ana_back, AN_RES_FLT_XFER_DATA);
1858 ANALYZE (s, res, flt_end_analyze, ana_list, ana_back, AN_RES_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01001859 break;
1860 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001861 }
1862
Willy Tarreau8f128b42014-11-28 15:07:47 +01001863 rp_cons_last = si_f->state;
1864 rp_prod_last = si_b->state;
Christopher Fauletcdaea892017-07-06 15:49:30 +02001865 res->flags &= ~CF_WAKE_ONCE;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001866 rpf_last = res->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001867
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02001868 if ((res->flags ^ flags) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001869 goto resync_response;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001870 }
1871
Willy Tarreau576507f2010-01-07 00:09:04 +01001872 /* maybe someone has added some request analysers, so we must check and loop */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001873 if (req->analysers & ~req_ana_back)
Willy Tarreau576507f2010-01-07 00:09:04 +01001874 goto resync_request;
1875
Willy Tarreau8f128b42014-11-28 15:07:47 +01001876 if ((req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0499e352010-12-17 07:13:42 +01001877 goto resync_request;
1878
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001879 /* FIXME: here we should call protocol handlers which rely on
1880 * both buffers.
1881 */
1882
1883
1884 /*
Willy Tarreau87b09662015-04-03 00:22:06 +02001885 * Now we propagate unhandled errors to the stream. Normally
Willy Tarreauae526782010-03-04 20:34:23 +01001886 * we're just in a data phase here since it means we have not
1887 * seen any analyser who could set an error status.
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001888 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001889 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001890 if (unlikely(!(s->flags & SF_ERR_MASK))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001891 if (req->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001892 /* Report it if the client got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001893 req->analysers = 0;
1894 if (req->flags & CF_READ_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001895 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1896 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001897 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001898 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001899 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001900 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001901 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01001902 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001903 else if (req->flags & CF_READ_TIMEOUT) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001904 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1905 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001906 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001907 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001908 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001909 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001910 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01001911 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001912 else if (req->flags & CF_WRITE_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001913 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1914 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001915 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001916 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001917 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001918 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001919 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01001920 }
1921 else {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001922 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1923 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001924 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001925 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001926 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001927 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001928 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01001929 }
Willy Tarreau84455332009-03-15 22:34:05 +01001930 sess_set_term_flags(s);
Christopher Faulet5e1a9d72019-04-23 17:34:22 +02001931
1932 /* Abort the request if a client error occurred while
1933 * the backend stream-interface is in the SI_ST_INI
1934 * state. It is switched into the SI_ST_CLO state and
1935 * the request channel is erased. */
1936 if (si_b->state == SI_ST_INI) {
1937 si_b->state = SI_ST_CLO;
1938 channel_abort(req);
1939 if (IS_HTX_STRM(s))
1940 channel_htx_erase(req, htxbuf(&req->buf));
1941 else
1942 channel_erase(req);
1943 }
Willy Tarreau84455332009-03-15 22:34:05 +01001944 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001945 else if (res->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001946 /* Report it if the server got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001947 res->analysers = 0;
1948 if (res->flags & CF_READ_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001949 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1950 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001951 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001952 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001953 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001954 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001955 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01001956 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001957 else if (res->flags & CF_READ_TIMEOUT) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001958 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1959 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001960 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001961 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001962 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001963 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001964 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01001965 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001966 else if (res->flags & CF_WRITE_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001967 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1968 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001969 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001970 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001971 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001972 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001973 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01001974 }
1975 else {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001976 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1977 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001978 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001979 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001980 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001981 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001982 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01001983 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001984 sess_set_term_flags(s);
1985 }
Willy Tarreau84455332009-03-15 22:34:05 +01001986 }
1987
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001988 /*
1989 * Here we take care of forwarding unhandled data. This also includes
1990 * connection establishments and shutdown requests.
1991 */
1992
1993
Willy Tarreau7c84bab2009-03-08 21:38:23 +01001994 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02001995 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001996 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001997 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01001998 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02001999 if (unlikely((!req->analysers || (req->analysers == AN_REQ_FLT_END && !(req->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002000 !(req->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002001 (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002002 (req->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002003 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002004 * attached to it. If any data are left in, we'll permit them to
2005 * move.
2006 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002007 channel_auto_read(req);
2008 channel_auto_connect(req);
2009 channel_auto_close(req);
Willy Tarreau5bd8c372009-01-19 00:32:22 +01002010
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002011 if (IS_HTX_STRM(s)) {
2012 struct htx *htx = htxbuf(&req->buf);
2013
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002014 /* We'll let data flow between the producer (if still connected)
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002015 * to the consumer.
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002016 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002017 co_set_data(req, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002018 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002019 channel_htx_forward_forever(req, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002020 }
2021 else {
2022 /* We'll let data flow between the producer (if still connected)
2023 * to the consumer (which might possibly not be connected yet).
2024 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002025 c_adv(req, ci_data(req));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002026 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2027 channel_forward_forever(req);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002028 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002029 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002030
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002031 /* check if it is wise to enable kernel splicing to forward request data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002032 if (!(req->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2033 req->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002034 (global.tune.options & GTUNE_USE_SPLICE) &&
Christopher Faulet276c1e02019-11-05 16:49:23 +01002035 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->rcv_pipe &&
2036 __objt_cs(si_f->end)->conn->mux && __objt_cs(si_f->end)->conn->mux->rcv_pipe) &&
2037 (objt_cs(si_b->end) && __objt_cs(si_b->end)->conn->xprt && __objt_cs(si_b->end)->conn->xprt->snd_pipe &&
2038 __objt_cs(si_b->end)->conn->mux && __objt_cs(si_b->end)->conn->mux->snd_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002039 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002040 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_REQ) ||
2041 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002042 (req->flags & CF_STREAMER_FAST)))) {
2043 req->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002044 }
2045
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002046 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002047 rqf_last = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002048
Willy Tarreau520d95e2009-09-19 21:04:57 +02002049 /* it's possible that an upper layer has requested a connection setup or abort.
2050 * There are 2 situations where we decide to establish a new connection :
2051 * - there are data scheduled for emission in the buffer
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002052 * - the CF_AUTO_CONNECT flag is set (active connection)
Willy Tarreau520d95e2009-09-19 21:04:57 +02002053 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002054 if (si_b->state == SI_ST_INI) {
Christopher Faulet5e1a9d72019-04-23 17:34:22 +02002055 if (!(req->flags & CF_SHUTW)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002056 if ((req->flags & CF_AUTO_CONNECT) || !channel_is_empty(req)) {
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002057 /* If we have an appctx, there is no connect method, so we
2058 * immediately switch to the connected state, otherwise we
2059 * perform a connection request.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002060 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002061 si_b->state = SI_ST_REQ; /* new connection requested */
2062 si_b->conn_retries = s->be->conn_retries;
Olivier Houchard602bf7d2019-05-10 13:59:15 +02002063 if ((s->be->retry_type &~ PR_RE_CONN_FAILED) &&
2064 !(si_b->flags & SI_FL_D_L7_RETRY))
Olivier Houcharda254a372019-04-05 15:30:12 +02002065 si_b->flags |= SI_FL_L7_RETRY;
Willy Tarreau520d95e2009-09-19 21:04:57 +02002066 }
Willy Tarreau73201222009-08-16 18:27:24 +02002067 }
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002068 else {
Willy Tarreau0542c8b2017-11-24 15:01:10 +01002069 si_release_endpoint(si_b);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002070 si_b->state = SI_ST_CLO; /* shutw+ini = abort */
2071 channel_shutw_now(req); /* fix buffer flags upon abort */
2072 channel_shutr_now(res);
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002073 }
Willy Tarreau92795622009-03-06 12:51:23 +01002074 }
2075
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002076
2077 /* we may have a pending connection request, or a connection waiting
2078 * for completion.
2079 */
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002080 if (si_state_in(si_b->state, SI_SB_REQ|SI_SB_QUE|SI_SB_TAR|SI_SB_ASS)) {
Thierry FOURNIER4834bc72015-06-06 19:29:07 +02002081 /* prune the request variables and swap to the response variables. */
2082 if (s->vars_reqres.scope != SCOPE_RES) {
Jerome Magnin2f44e882019-11-09 18:00:47 +01002083 if (!LIST_ISEMPTY(&s->vars_reqres.head))
Willy Tarreaucda7f3f2018-10-28 13:44:36 +01002084 vars_prune(&s->vars_reqres, s->sess, s);
Jerome Magnin2f44e882019-11-09 18:00:47 +01002085 vars_init(&s->vars_reqres, SCOPE_RES);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +02002086 }
2087
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002088 do {
2089 /* nb: step 1 might switch from QUE to ASS, but we first want
2090 * to give a chance to step 2 to perform a redirect if needed.
2091 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002092 if (si_b->state != SI_ST_REQ)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002093 back_try_conn_req(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002094 if (si_b->state == SI_ST_REQ)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002095 back_handle_st_req(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002096
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +01002097 /* applets directly go to the ESTABLISHED state. Similarly,
2098 * servers experience the same fate when their connection
2099 * is reused.
2100 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002101 if (unlikely(si_b->state == SI_ST_EST))
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002102 back_establish(s);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01002103
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002104 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002105 if (si_b->state == SI_ST_ASS && srv && srv->rdr_len && (s->flags & SF_REDIRECTABLE))
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02002106 http_perform_server_redirect(s, si_b);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002107 } while (si_b->state == SI_ST_ASS);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002108 }
2109
Willy Tarreau829bd472019-06-06 09:17:23 +02002110 /* Let's see if we can send the pending request now */
2111 si_sync_send(si_b);
2112
2113 /*
2114 * Now forward all shutdown requests between both sides of the request buffer
2115 */
2116
2117 /* first, let's check if the request buffer needs to shutdown(write), which may
2118 * happen either because the input is closed or because we want to force a close
2119 * once the server has begun to respond. If a half-closed timeout is set, we adjust
2120 * the other side's timeout as well.
2121 */
2122 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
2123 (CF_AUTO_CLOSE|CF_SHUTR))) {
2124 channel_shutw_now(req);
2125 }
2126
2127 /* shutdown(write) pending */
2128 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2129 channel_is_empty(req))) {
2130 if (req->flags & CF_READ_ERROR)
2131 si_b->flags |= SI_FL_NOLINGER;
2132 si_shutw(si_b);
2133 }
2134
2135 /* shutdown(write) done on server side, we must stop the client too */
2136 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW &&
2137 !req->analysers))
2138 channel_shutr_now(req);
2139
2140 /* shutdown(read) pending */
2141 if (unlikely((req->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2142 if (si_f->flags & SI_FL_NOHALF)
2143 si_f->flags |= SI_FL_NOLINGER;
2144 si_shutr(si_f);
2145 }
2146
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002147 /* Benchmarks have shown that it's optimal to do a full resync now */
Willy Tarreau829bd472019-06-06 09:17:23 +02002148 if (si_f->state == SI_ST_DIS ||
2149 si_state_in(si_b->state, SI_SB_RDY|SI_SB_DIS) ||
2150 (si_f->flags & SI_FL_ERR && si_f->state != SI_ST_CLO) ||
2151 (si_b->flags & SI_FL_ERR && si_b->state != SI_ST_CLO))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002152 goto resync_stream_interface;
2153
Willy Tarreau815a9b22010-07-27 17:15:12 +02002154 /* otherwise we want to check if we need to resync the req buffer or not */
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02002155 if ((req->flags ^ rqf_last) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002156 goto resync_request;
2157
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002158 /* perform output updates to the response buffer */
Willy Tarreau84455332009-03-15 22:34:05 +01002159
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002160 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002161 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002162 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002163 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002164 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02002165 if (unlikely((!res->analysers || (res->analysers == AN_RES_FLT_END && !(res->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002166 !(res->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002167 si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002168 (res->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002169 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002170 * attached to it. If any data are left in, we'll permit them to
2171 * move.
2172 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002173 channel_auto_read(res);
2174 channel_auto_close(res);
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002175
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002176 if (IS_HTX_STRM(s)) {
2177 struct htx *htx = htxbuf(&res->buf);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002178
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002179 /* We'll let data flow between the producer (if still connected)
2180 * to the consumer.
2181 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002182 co_set_data(res, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002183 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002184 channel_htx_forward_forever(res, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002185 }
2186 else {
2187 /* We'll let data flow between the producer (if still connected)
2188 * to the consumer.
2189 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002190 c_adv(res, ci_data(res));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002191 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2192 channel_forward_forever(res);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002193 }
Willy Tarreau42529c32015-07-09 18:38:57 +02002194
Willy Tarreauce887fd2012-05-12 12:50:00 +02002195 /* if we have no analyser anymore in any direction and have a
Willy Tarreau05cdd962014-05-10 14:30:07 +02002196 * tunnel timeout set, use it now. Note that we must respect
2197 * the half-closed timeouts as well.
Willy Tarreauce887fd2012-05-12 12:50:00 +02002198 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002199 if (!req->analysers && s->be->timeout.tunnel) {
2200 req->rto = req->wto = res->rto = res->wto =
Willy Tarreauce887fd2012-05-12 12:50:00 +02002201 s->be->timeout.tunnel;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002202
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002203 if ((req->flags & CF_SHUTR) && tick_isset(sess->fe->timeout.clientfin))
2204 res->wto = sess->fe->timeout.clientfin;
Willy Tarreau8f128b42014-11-28 15:07:47 +01002205 if ((req->flags & CF_SHUTW) && tick_isset(s->be->timeout.serverfin))
2206 res->rto = s->be->timeout.serverfin;
2207 if ((res->flags & CF_SHUTR) && tick_isset(s->be->timeout.serverfin))
2208 req->wto = s->be->timeout.serverfin;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002209 if ((res->flags & CF_SHUTW) && tick_isset(sess->fe->timeout.clientfin))
2210 req->rto = sess->fe->timeout.clientfin;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002211
Willy Tarreau8f128b42014-11-28 15:07:47 +01002212 req->rex = tick_add(now_ms, req->rto);
2213 req->wex = tick_add(now_ms, req->wto);
2214 res->rex = tick_add(now_ms, res->rto);
2215 res->wex = tick_add(now_ms, res->wto);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002216 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002217 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002218
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002219 /* check if it is wise to enable kernel splicing to forward response data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002220 if (!(res->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2221 res->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002222 (global.tune.options & GTUNE_USE_SPLICE) &&
Christopher Faulet276c1e02019-11-05 16:49:23 +01002223 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->snd_pipe &&
2224 __objt_cs(si_f->end)->conn->mux && __objt_cs(si_f->end)->conn->mux->snd_pipe) &&
2225 (objt_cs(si_b->end) && __objt_cs(si_b->end)->conn->xprt && __objt_cs(si_b->end)->conn->xprt->rcv_pipe &&
2226 __objt_cs(si_b->end)->conn->mux && __objt_cs(si_b->end)->conn->mux->rcv_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002227 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002228 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_RTR) ||
2229 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002230 (res->flags & CF_STREAMER_FAST)))) {
2231 res->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002232 }
2233
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002234 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002235 rpf_last = res->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002236
Willy Tarreau829bd472019-06-06 09:17:23 +02002237 /* Let's see if we can send the pending response now */
2238 si_sync_send(si_f);
2239
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002240 /*
2241 * Now forward all shutdown requests between both sides of the buffer
2242 */
2243
2244 /*
2245 * FIXME: this is probably where we should produce error responses.
2246 */
2247
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002248 /* first, let's check if the response buffer needs to shutdown(write) */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002249 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau05cdd962014-05-10 14:30:07 +02002250 (CF_AUTO_CLOSE|CF_SHUTR))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002251 channel_shutw_now(res);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002252 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002253
2254 /* shutdown(write) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002255 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2256 channel_is_empty(res))) {
2257 si_shutw(si_f);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002258 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002259
2260 /* shutdown(write) done on the client side, we must stop the server too */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002261 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW) &&
2262 !res->analysers)
2263 channel_shutr_now(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002264
2265 /* shutdown(read) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002266 if (unlikely((res->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2267 if (si_b->flags & SI_FL_NOHALF)
2268 si_b->flags |= SI_FL_NOLINGER;
2269 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002270 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002271
Willy Tarreau829bd472019-06-06 09:17:23 +02002272 if (si_f->state == SI_ST_DIS ||
2273 si_state_in(si_b->state, SI_SB_RDY|SI_SB_DIS) ||
2274 (si_f->flags & SI_FL_ERR && si_f->state != SI_ST_CLO) ||
2275 (si_b->flags & SI_FL_ERR && si_b->state != SI_ST_CLO))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002276 goto resync_stream_interface;
2277
Willy Tarreau3c5c0662019-06-06 14:32:49 +02002278 if ((req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002279 goto resync_request;
2280
Willy Tarreau8f128b42014-11-28 15:07:47 +01002281 if ((res->flags ^ rpf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002282 goto resync_response;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002283
Willy Tarreau829bd472019-06-06 09:17:23 +02002284 if (((req->flags ^ rqf_last) | (res->flags ^ rpf_last)) & CF_MASK_ANALYSER)
2285 goto resync_request;
2286
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002287 /* we're interested in getting wakeups again */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002288 si_f->flags &= ~SI_FL_DONT_WAKE;
2289 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002290
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002291 /* This is needed only when debugging is enabled, to indicate
2292 * client-side or server-side close. Please note that in the unlikely
2293 * event where both sides would close at once, the sequence is reported
2294 * on the server side first.
2295 */
2296 if (unlikely((global.mode & MODE_DEBUG) &&
2297 (!(global.mode & MODE_QUIET) ||
2298 (global.mode & MODE_VERBOSE)))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002299 if (si_b->state == SI_ST_CLO &&
2300 si_b->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002301 chunk_printf(&trash, "%08x:%s.srvcls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002302 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002303 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2304 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002305 shut_your_big_mouth_gcc(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002306 }
2307
Willy Tarreau8f128b42014-11-28 15:07:47 +01002308 if (si_f->state == SI_ST_CLO &&
2309 si_f->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002310 chunk_printf(&trash, "%08x:%s.clicls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002311 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002312 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2313 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002314 shut_your_big_mouth_gcc(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002315 }
2316 }
2317
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002318 if (likely((si_f->state != SI_ST_CLO) || !si_state_in(si_b->state, SI_SB_INI|SI_SB_CLO))) {
Olivier Houchard4c18f942019-07-31 18:05:26 +02002319 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED) && !(s->flags & SF_IGNORE))
Willy Tarreau87b09662015-04-03 00:22:06 +02002320 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002321
Willy Tarreaud14844a2018-11-08 18:15:29 +01002322 si_update_both(si_f, si_b);
Olivier Houchard53216e72018-10-10 15:46:36 +02002323
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002324 /* Trick: if a request is being waiting for the server to respond,
2325 * and if we know the server can timeout, we don't want the timeout
2326 * to expire on the client side first, but we're still interested
2327 * in passing data from the client to the server (eg: POST). Thus,
2328 * we can cancel the client's request timeout if the server's
2329 * request timeout is set and the server has not yet sent a response.
2330 */
2331
Willy Tarreau8f128b42014-11-28 15:07:47 +01002332 if ((res->flags & (CF_AUTO_CLOSE|CF_SHUTR)) == 0 &&
2333 (tick_isset(req->wex) || tick_isset(res->rex))) {
2334 req->flags |= CF_READ_NOEXP;
2335 req->rex = TICK_ETERNITY;
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002336 }
2337
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002338 /* Reset pending events now */
2339 s->pending_events = 0;
2340
Willy Tarreau798f4322012-11-08 14:49:17 +01002341 update_exp_and_leave:
Willy Tarreau5fb04712016-05-04 10:18:37 +02002342 /* Note: please ensure that if you branch here you disable SI_FL_DONT_WAKE */
Christopher Fauleta00d8172016-11-10 14:58:05 +01002343 t->expire = tick_first((tick_is_expired(t->expire, now_ms) ? 0 : t->expire),
2344 tick_first(tick_first(req->rex, req->wex),
2345 tick_first(res->rex, res->wex)));
Willy Tarreaudef0d222016-11-08 22:03:00 +01002346 if (!req->analysers)
2347 req->analyse_exp = TICK_ETERNITY;
2348
2349 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED) &&
2350 (!tick_isset(req->analyse_exp) || tick_is_expired(req->analyse_exp, now_ms)))
2351 req->analyse_exp = tick_add(now_ms, 5000);
2352
2353 t->expire = tick_first(t->expire, req->analyse_exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002354
Willy Tarreau9a398be2017-11-10 17:14:23 +01002355 t->expire = tick_first(t->expire, res->analyse_exp);
2356
Willy Tarreau8f128b42014-11-28 15:07:47 +01002357 if (si_f->exp)
2358 t->expire = tick_first(t->expire, si_f->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002359
Willy Tarreau8f128b42014-11-28 15:07:47 +01002360 if (si_b->exp)
2361 t->expire = tick_first(t->expire, si_b->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002362
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002363 s->pending_events &= ~(TASK_WOKEN_TIMER | TASK_WOKEN_RES);
Willy Tarreau87b09662015-04-03 00:22:06 +02002364 stream_release_buffers(s);
Christopher Fauleteea8fc72019-11-05 16:18:10 +01002365
2366 DBG_TRACE_DEVEL("queuing", STRM_EV_STRM_PROC, s);
Willy Tarreau26c25062009-03-08 09:38:41 +01002367 return t; /* nothing more to do */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002368 }
2369
Christopher Fauleteea8fc72019-11-05 16:18:10 +01002370 DBG_TRACE_DEVEL("releasing", STRM_EV_STRM_PROC, s);
2371
Willy Tarreaue7dff022015-04-03 01:14:29 +02002372 if (s->flags & SF_BE_ASSIGNED)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002373 _HA_ATOMIC_SUB(&s->be->beconn, 1);
Willy Tarreau6f5e4b92017-09-15 09:07:56 +02002374
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002375 if (unlikely((global.mode & MODE_DEBUG) &&
2376 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)))) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002377 chunk_printf(&trash, "%08x:%s.closed[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002378 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002379 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2380 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002381 shut_your_big_mouth_gcc(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002382 }
2383
2384 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
Olivier Houchard4c18f942019-07-31 18:05:26 +02002385 if (!(s->flags & SF_IGNORE))
2386 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002387
Willy Tarreaueee5b512015-04-03 23:46:31 +02002388 if (s->txn && s->txn->status) {
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002389 int n;
2390
Willy Tarreaueee5b512015-04-03 23:46:31 +02002391 n = s->txn->status / 100;
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002392 if (n < 1 || n > 5)
2393 n = 0;
2394
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002395 if (sess->fe->mode == PR_MODE_HTTP) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002396 _HA_ATOMIC_ADD(&sess->fe->fe_counters.p.http.rsp[n], 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002397 }
Willy Tarreaue7dff022015-04-03 01:14:29 +02002398 if ((s->flags & SF_BE_ASSIGNED) &&
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002399 (s->be->mode == PR_MODE_HTTP)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002400 _HA_ATOMIC_ADD(&s->be->be_counters.p.http.rsp[n], 1);
2401 _HA_ATOMIC_ADD(&s->be->be_counters.p.http.cum_req, 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002402 }
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002403 }
2404
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002405 /* let's do a final log if we need it */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002406 if (!LIST_ISEMPTY(&sess->fe->logformat) && s->logs.logwait &&
Willy Tarreaue7dff022015-04-03 01:14:29 +02002407 !(s->flags & SF_MONITOR) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002408 (!(sess->fe->options & PR_O_NULLNOLOG) || req->total)) {
Willy Tarreau66425e32018-07-25 06:55:12 +02002409 /* we may need to know the position in the queue */
2410 pendconn_free(s);
Willy Tarreaua5555ec2008-11-30 19:02:32 +01002411 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002412 }
2413
Willy Tarreau87b09662015-04-03 00:22:06 +02002414 /* update time stats for this stream */
2415 stream_update_time_stats(s);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002416
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002417 /* the task MUST not be in the run queue anymore */
Willy Tarreau87b09662015-04-03 00:22:06 +02002418 stream_free(s);
Olivier Houchard3f795f72019-04-17 22:51:06 +02002419 task_destroy(t);
Willy Tarreau26c25062009-03-08 09:38:41 +01002420 return NULL;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002421}
2422
Willy Tarreau87b09662015-04-03 00:22:06 +02002423/* Update the stream's backend and server time stats */
2424void stream_update_time_stats(struct stream *s)
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002425{
2426 int t_request;
2427 int t_queue;
2428 int t_connect;
2429 int t_data;
2430 int t_close;
2431 struct server *srv;
2432
2433 t_request = 0;
2434 t_queue = s->logs.t_queue;
2435 t_connect = s->logs.t_connect;
2436 t_close = s->logs.t_close;
2437 t_data = s->logs.t_data;
2438
2439 if (s->be->mode != PR_MODE_HTTP)
2440 t_data = t_connect;
2441
2442 if (t_connect < 0 || t_data < 0)
2443 return;
2444
2445 if (tv_isge(&s->logs.tv_request, &s->logs.tv_accept))
2446 t_request = tv_ms_elapsed(&s->logs.tv_accept, &s->logs.tv_request);
2447
2448 t_data -= t_connect;
2449 t_connect -= t_queue;
2450 t_queue -= t_request;
2451
2452 srv = objt_server(s->target);
2453 if (srv) {
2454 swrate_add(&srv->counters.q_time, TIME_STATS_SAMPLES, t_queue);
2455 swrate_add(&srv->counters.c_time, TIME_STATS_SAMPLES, t_connect);
2456 swrate_add(&srv->counters.d_time, TIME_STATS_SAMPLES, t_data);
2457 swrate_add(&srv->counters.t_time, TIME_STATS_SAMPLES, t_close);
Christopher Fauletefb41f02019-11-08 14:53:15 +01002458 HA_ATOMIC_UPDATE_MAX(&srv->counters.qtime_max, t_queue);
2459 HA_ATOMIC_UPDATE_MAX(&srv->counters.ctime_max, t_connect);
2460 HA_ATOMIC_UPDATE_MAX(&srv->counters.dtime_max, t_data);
2461 HA_ATOMIC_UPDATE_MAX(&srv->counters.ttime_max, t_close);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002462 }
2463 swrate_add(&s->be->be_counters.q_time, TIME_STATS_SAMPLES, t_queue);
2464 swrate_add(&s->be->be_counters.c_time, TIME_STATS_SAMPLES, t_connect);
2465 swrate_add(&s->be->be_counters.d_time, TIME_STATS_SAMPLES, t_data);
2466 swrate_add(&s->be->be_counters.t_time, TIME_STATS_SAMPLES, t_close);
Christopher Fauletefb41f02019-11-08 14:53:15 +01002467 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.qtime_max, t_queue);
2468 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.ctime_max, t_connect);
2469 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.dtime_max, t_data);
2470 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.ttime_max, t_close);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002471}
2472
Willy Tarreau7c669d72008-06-20 15:04:11 +02002473/*
2474 * This function adjusts sess->srv_conn and maintains the previous and new
Willy Tarreau87b09662015-04-03 00:22:06 +02002475 * server's served stream counts. Setting newsrv to NULL is enough to release
Willy Tarreau7c669d72008-06-20 15:04:11 +02002476 * current connection slot. This function also notifies any LB algo which might
Willy Tarreau87b09662015-04-03 00:22:06 +02002477 * expect to be informed about any change in the number of active streams on a
Willy Tarreau7c669d72008-06-20 15:04:11 +02002478 * server.
2479 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002480void sess_change_server(struct stream *sess, struct server *newsrv)
Willy Tarreau7c669d72008-06-20 15:04:11 +02002481{
2482 if (sess->srv_conn == newsrv)
2483 return;
2484
2485 if (sess->srv_conn) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002486 _HA_ATOMIC_SUB(&sess->srv_conn->served, 1);
2487 _HA_ATOMIC_SUB(&sess->srv_conn->proxy->served, 1);
2488 __ha_barrier_atomic_store();
Willy Tarreau7c669d72008-06-20 15:04:11 +02002489 if (sess->srv_conn->proxy->lbprm.server_drop_conn)
2490 sess->srv_conn->proxy->lbprm.server_drop_conn(sess->srv_conn);
Willy Tarreau87b09662015-04-03 00:22:06 +02002491 stream_del_srv_conn(sess);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002492 }
2493
2494 if (newsrv) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002495 _HA_ATOMIC_ADD(&newsrv->served, 1);
2496 _HA_ATOMIC_ADD(&newsrv->proxy->served, 1);
2497 __ha_barrier_atomic_store();
Willy Tarreau7c669d72008-06-20 15:04:11 +02002498 if (newsrv->proxy->lbprm.server_take_conn)
2499 newsrv->proxy->lbprm.server_take_conn(newsrv);
Willy Tarreau87b09662015-04-03 00:22:06 +02002500 stream_add_srv_conn(sess, newsrv);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002501 }
2502}
2503
Willy Tarreau84455332009-03-15 22:34:05 +01002504/* Handle server-side errors for default protocols. It is called whenever a a
2505 * connection setup is aborted or a request is aborted in queue. It sets the
Willy Tarreau87b09662015-04-03 00:22:06 +02002506 * stream termination flags so that the caller does not have to worry about
Willy Tarreau84455332009-03-15 22:34:05 +01002507 * them. It's installed as ->srv_error for the server-side stream_interface.
2508 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002509void default_srv_error(struct stream *s, struct stream_interface *si)
Willy Tarreau84455332009-03-15 22:34:05 +01002510{
2511 int err_type = si->err_type;
2512 int err = 0, fin = 0;
2513
2514 if (err_type & SI_ET_QUEUE_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002515 err = SF_ERR_CLICL;
2516 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002517 }
2518 else if (err_type & SI_ET_CONN_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002519 err = SF_ERR_CLICL;
2520 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002521 }
2522 else if (err_type & SI_ET_QUEUE_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002523 err = SF_ERR_SRVTO;
2524 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002525 }
2526 else if (err_type & SI_ET_QUEUE_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002527 err = SF_ERR_SRVCL;
2528 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002529 }
2530 else if (err_type & SI_ET_CONN_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002531 err = SF_ERR_SRVTO;
2532 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002533 }
2534 else if (err_type & SI_ET_CONN_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002535 err = SF_ERR_SRVCL;
2536 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002537 }
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002538 else if (err_type & SI_ET_CONN_RES) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002539 err = SF_ERR_RESOURCE;
2540 fin = SF_FINST_C;
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002541 }
Willy Tarreau84455332009-03-15 22:34:05 +01002542 else /* SI_ET_CONN_OTHER and others */ {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002543 err = SF_ERR_INTERNAL;
2544 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002545 }
2546
Willy Tarreaue7dff022015-04-03 01:14:29 +02002547 if (!(s->flags & SF_ERR_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002548 s->flags |= err;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002549 if (!(s->flags & SF_FINST_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002550 s->flags |= fin;
2551}
Willy Tarreau7c669d72008-06-20 15:04:11 +02002552
Willy Tarreaue7dff022015-04-03 01:14:29 +02002553/* kill a stream and set the termination flags to <why> (one of SF_ERR_*) */
Willy Tarreau87b09662015-04-03 00:22:06 +02002554void stream_shutdown(struct stream *stream, int why)
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002555{
Willy Tarreau87b09662015-04-03 00:22:06 +02002556 if (stream->req.flags & (CF_SHUTW|CF_SHUTW_NOW))
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002557 return;
2558
Willy Tarreau87b09662015-04-03 00:22:06 +02002559 channel_shutw_now(&stream->req);
2560 channel_shutr_now(&stream->res);
2561 stream->task->nice = 1024;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002562 if (!(stream->flags & SF_ERR_MASK))
Willy Tarreau87b09662015-04-03 00:22:06 +02002563 stream->flags |= why;
2564 task_wakeup(stream->task, TASK_WOKEN_OTHER);
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002565}
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02002566
Willy Tarreau5484d582019-05-22 09:33:03 +02002567/* Appends a dump of the state of stream <s> into buffer <buf> which must have
2568 * preliminary be prepared by its caller, with each line prepended by prefix
2569 * <pfx>, and each line terminated by character <eol>.
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002570 */
Willy Tarreau5484d582019-05-22 09:33:03 +02002571void stream_dump(struct buffer *buf, const struct stream *s, const char *pfx, char eol)
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002572{
2573 const struct conn_stream *csf, *csb;
2574 const struct connection *cof, *cob;
2575 const struct appctx *acf, *acb;
2576 const struct server *srv;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002577 const char *src = "unknown";
2578 const char *dst = "unknown";
2579 char pn[INET6_ADDRSTRLEN];
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002580 const struct channel *req, *res;
2581 const struct stream_interface *si_f, *si_b;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002582
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002583 if (!s) {
Willy Tarreau5484d582019-05-22 09:33:03 +02002584 chunk_appendf(buf, "%sstrm=%p%c", pfx, s, eol);
2585 return;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002586 }
2587
Willy Tarreau5484d582019-05-22 09:33:03 +02002588 if (s->obj_type != OBJ_TYPE_STREAM) {
2589 chunk_appendf(buf, "%sstrm=%p [invalid type=%d(%s)]%c",
2590 pfx, s, s->obj_type, obj_type_name(&s->obj_type), eol);
2591 return;
2592 }
2593
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002594 si_f = &s->si[0];
2595 si_b = &s->si[1];
2596 req = &s->req;
2597 res = &s->res;
2598
2599 csf = objt_cs(si_f->end);
2600 cof = cs_conn(csf);
2601 acf = objt_appctx(si_f->end);
Willy Tarreau71e34c12019-07-17 15:07:06 +02002602 if (cof && cof->src && addr_to_str(cof->src, pn, sizeof(pn)) >= 0)
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002603 src = pn;
2604 else if (acf)
2605 src = acf->applet->name;
2606
2607 csb = objt_cs(si_b->end);
2608 cob = cs_conn(csb);
2609 acb = objt_appctx(si_b->end);
2610 srv = objt_server(s->target);
2611 if (srv)
2612 dst = srv->id;
2613 else if (acb)
2614 dst = acb->applet->name;
2615
Willy Tarreau5484d582019-05-22 09:33:03 +02002616 chunk_appendf(buf,
2617 "%sstrm=%p src=%s fe=%s be=%s dst=%s%c"
2618 "%srqf=%x rqa=%x rpf=%x rpa=%x sif=%s,%x sib=%s,%x%c"
2619 "%saf=%p,%u csf=%p,%x%c"
2620 "%sab=%p,%u csb=%p,%x%c"
2621 "%scof=%p,%x:%s(%p)/%s(%p)/%s(%d)%c"
2622 "%scob=%p,%x:%s(%p)/%s(%p)/%s(%d)%c"
2623 "",
2624 pfx, s, src, s->sess->fe->id, s->be->id, dst, eol,
2625 pfx, req->flags, req->analysers, res->flags, res->analysers,
2626 si_state_str(si_f->state), si_f->flags,
2627 si_state_str(si_b->state), si_b->flags, eol,
2628 pfx, acf, acf ? acf->st0 : 0, csf, csf ? csf->flags : 0, eol,
2629 pfx, acb, acb ? acb->st0 : 0, csb, csb ? csb->flags : 0, eol,
2630 pfx, cof, cof ? cof->flags : 0, conn_get_mux_name(cof), cof?cof->ctx:0, conn_get_xprt_name(cof),
2631 cof ? cof->xprt_ctx : 0, conn_get_ctrl_name(cof), cof ? cof->handle.fd : 0, eol,
2632 pfx, cob, cob ? cob->flags : 0, conn_get_mux_name(cob), cob?cob->ctx:0, conn_get_xprt_name(cob),
2633 cob ? cob->xprt_ctx : 0, conn_get_ctrl_name(cob), cob ? cob->handle.fd : 0, eol);
2634}
2635
2636/* dumps an error message for type <type> at ptr <ptr> related to stream <s>,
Willy Tarreaub106ce12019-05-22 08:57:01 +02002637 * having reached loop rate <rate>, then aborts hoping to retrieve a core.
Willy Tarreau5484d582019-05-22 09:33:03 +02002638 */
2639void stream_dump_and_crash(enum obj_type *obj, int rate)
2640{
2641 const struct stream *s;
Willy Tarreau5484d582019-05-22 09:33:03 +02002642 char *msg = NULL;
2643 const void *ptr;
2644
2645 ptr = s = objt_stream(obj);
2646 if (!s) {
2647 const struct appctx *appctx = objt_appctx(obj);
2648 if (!appctx)
2649 return;
2650 ptr = appctx;
2651 s = si_strm(appctx->owner);
2652 if (!s)
2653 return;
2654 }
2655
Willy Tarreau5484d582019-05-22 09:33:03 +02002656 chunk_reset(&trash);
2657 stream_dump(&trash, s, "", ' ');
Willy Tarreaub106ce12019-05-22 08:57:01 +02002658 memprintf(&msg,
2659 "A bogus %s [%p] is spinning at %d calls per second and refuses to die, "
2660 "aborting now! Please report this error to developers "
2661 "[%s]\n",
Willy Tarreau5484d582019-05-22 09:33:03 +02002662 obj_type_name(obj), ptr, rate, trash.area);
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002663
2664 ha_alert("%s", msg);
2665 send_log(NULL, LOG_EMERG, "%s", msg);
2666 abort();
2667}
2668
Willy Tarreau8b22a712010-06-18 17:46:06 +02002669/************************************************************************/
2670/* All supported ACL keywords must be declared here. */
2671/************************************************************************/
2672
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02002673/* 0=OK, <0=Alert, >0=Warning */
2674static enum act_parse_ret stream_parse_use_service(const char **args, int *cur_arg,
2675 struct proxy *px, struct act_rule *rule,
2676 char **err)
2677{
2678 struct action_kw *kw;
2679
2680 /* Check if the service name exists. */
2681 if (*(args[*cur_arg]) == 0) {
2682 memprintf(err, "'%s' expects a service name.", args[0]);
Thierry FOURNIER337eae12015-11-26 19:48:04 +01002683 return ACT_RET_PRS_ERR;
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02002684 }
2685
2686 /* lookup for keyword corresponding to a service. */
2687 kw = action_lookup(&service_keywords, args[*cur_arg]);
2688 if (!kw) {
2689 memprintf(err, "'%s' unknown service name.", args[1]);
2690 return ACT_RET_PRS_ERR;
2691 }
2692 (*cur_arg)++;
2693
2694 /* executes specific rule parser. */
2695 rule->kw = kw;
2696 if (kw->parse((const char **)args, cur_arg, px, rule, err) == ACT_RET_PRS_ERR)
2697 return ACT_RET_PRS_ERR;
2698
2699 /* Register processing function. */
2700 rule->action_ptr = process_use_service;
2701 rule->action = ACT_CUSTOM;
2702
2703 return ACT_RET_PRS_OK;
2704}
2705
2706void service_keywords_register(struct action_kw_list *kw_list)
2707{
2708 LIST_ADDQ(&service_keywords, &kw_list->list);
2709}
2710
Willy Tarreau679bba12019-03-19 08:08:10 +01002711/* Lists the known services on <out> */
2712void list_services(FILE *out)
2713{
2714 struct action_kw_list *kw_list;
2715 int found = 0;
2716 int i;
2717
2718 fprintf(out, "Available services :");
2719 list_for_each_entry(kw_list, &service_keywords, list) {
2720 for (i = 0; kw_list->kw[i].kw != NULL; i++) {
2721 if (!found)
2722 fputc('\n', out);
2723 found = 1;
2724 fprintf(out, "\t%s\n", kw_list->kw[i].kw);
2725 }
2726 }
2727 if (!found)
2728 fprintf(out, " none\n");
2729}
William Lallemand4c5b4d52016-11-21 08:51:11 +01002730
2731/* This function dumps a complete stream state onto the stream interface's
2732 * read buffer. The stream has to be set in strm. It returns 0 if the output
2733 * buffer is full and it needs to be called again, otherwise non-zero. It is
2734 * designed to be called from stats_dump_strm_to_buffer() below.
2735 */
2736static int stats_dump_full_strm_to_buffer(struct stream_interface *si, struct stream *strm)
2737{
2738 struct appctx *appctx = __objt_appctx(si->end);
2739 struct tm tm;
2740 extern const char *monthname[12];
2741 char pn[INET6_ADDRSTRLEN];
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002742 struct conn_stream *cs;
William Lallemand4c5b4d52016-11-21 08:51:11 +01002743 struct connection *conn;
2744 struct appctx *tmpctx;
2745
2746 chunk_reset(&trash);
2747
2748 if (appctx->ctx.sess.section > 0 && appctx->ctx.sess.uid != strm->uniq_id) {
2749 /* stream changed, no need to go any further */
2750 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
Willy Tarreaue6e52362019-01-04 17:42:57 +01002751 if (ci_putchk(si_ic(si), &trash) == -1)
2752 goto full;
2753 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01002754 }
2755
2756 switch (appctx->ctx.sess.section) {
2757 case 0: /* main status of the stream */
2758 appctx->ctx.sess.uid = strm->uniq_id;
2759 appctx->ctx.sess.section = 1;
2760 /* fall through */
2761
2762 case 1:
2763 get_localtime(strm->logs.accept_date.tv_sec, &tm);
2764 chunk_appendf(&trash,
2765 "%p: [%02d/%s/%04d:%02d:%02d:%02d.%06d] id=%u proto=%s",
2766 strm,
2767 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
2768 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(strm->logs.accept_date.tv_usec),
2769 strm->uniq_id,
2770 strm_li(strm) ? strm_li(strm)->proto->name : "?");
2771
2772 conn = objt_conn(strm_orig(strm));
Willy Tarreau71e34c12019-07-17 15:07:06 +02002773 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002774 case AF_INET:
2775 case AF_INET6:
2776 chunk_appendf(&trash, " source=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002777 pn, get_host_port(conn->src));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002778 break;
2779 case AF_UNIX:
2780 chunk_appendf(&trash, " source=unix:%d\n", strm_li(strm)->luid);
2781 break;
2782 default:
2783 /* no more information to print right now */
2784 chunk_appendf(&trash, "\n");
2785 break;
2786 }
2787
2788 chunk_appendf(&trash,
Willy Tarreauadf7a152019-01-07 10:10:07 +01002789 " flags=0x%x, conn_retries=%d, srv_conn=%p, pend_pos=%p waiting=%d\n",
2790 strm->flags, strm->si[1].conn_retries, strm->srv_conn, strm->pend_pos,
2791 !LIST_ISEMPTY(&strm->buffer_wait.list));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002792
2793 chunk_appendf(&trash,
2794 " frontend=%s (id=%u mode=%s), listener=%s (id=%u)",
2795 strm_fe(strm)->id, strm_fe(strm)->uuid, strm_fe(strm)->mode ? "http" : "tcp",
2796 strm_li(strm) ? strm_li(strm)->name ? strm_li(strm)->name : "?" : "?",
2797 strm_li(strm) ? strm_li(strm)->luid : 0);
2798
Willy Tarreau71e34c12019-07-17 15:07:06 +02002799 switch (conn && conn_get_dst(conn) ? addr_to_str(conn->dst, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002800 case AF_INET:
2801 case AF_INET6:
2802 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002803 pn, get_host_port(conn->dst));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002804 break;
2805 case AF_UNIX:
2806 chunk_appendf(&trash, " addr=unix:%d\n", strm_li(strm)->luid);
2807 break;
2808 default:
2809 /* no more information to print right now */
2810 chunk_appendf(&trash, "\n");
2811 break;
2812 }
2813
2814 if (strm->be->cap & PR_CAP_BE)
2815 chunk_appendf(&trash,
2816 " backend=%s (id=%u mode=%s)",
2817 strm->be->id,
2818 strm->be->uuid, strm->be->mode ? "http" : "tcp");
2819 else
2820 chunk_appendf(&trash, " backend=<NONE> (id=-1 mode=-)");
2821
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002822 cs = objt_cs(strm->si[1].end);
2823 conn = cs_conn(cs);
2824
Willy Tarreau71e34c12019-07-17 15:07:06 +02002825 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002826 case AF_INET:
2827 case AF_INET6:
2828 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002829 pn, get_host_port(conn->src));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002830 break;
2831 case AF_UNIX:
2832 chunk_appendf(&trash, " addr=unix\n");
2833 break;
2834 default:
2835 /* no more information to print right now */
2836 chunk_appendf(&trash, "\n");
2837 break;
2838 }
2839
2840 if (strm->be->cap & PR_CAP_BE)
2841 chunk_appendf(&trash,
2842 " server=%s (id=%u)",
2843 objt_server(strm->target) ? objt_server(strm->target)->id : "<none>",
2844 objt_server(strm->target) ? objt_server(strm->target)->puid : 0);
2845 else
2846 chunk_appendf(&trash, " server=<NONE> (id=-1)");
2847
Willy Tarreau71e34c12019-07-17 15:07:06 +02002848 switch (conn && conn_get_dst(conn) ? addr_to_str(conn->dst, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002849 case AF_INET:
2850 case AF_INET6:
2851 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002852 pn, get_host_port(conn->dst));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002853 break;
2854 case AF_UNIX:
2855 chunk_appendf(&trash, " addr=unix\n");
2856 break;
2857 default:
2858 /* no more information to print right now */
2859 chunk_appendf(&trash, "\n");
2860 break;
2861 }
2862
2863 chunk_appendf(&trash,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02002864 " task=%p (state=0x%02x nice=%d calls=%u rate=%u exp=%s tmask=0x%lx%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002865 strm->task,
2866 strm->task->state,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02002867 strm->task->nice, strm->task->calls, read_freq_ctr(&strm->call_rate),
William Lallemand4c5b4d52016-11-21 08:51:11 +01002868 strm->task->expire ?
2869 tick_is_expired(strm->task->expire, now_ms) ? "<PAST>" :
2870 human_time(TICKS_TO_MS(strm->task->expire - now_ms),
2871 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Fauletf0205062017-11-15 20:56:43 +01002872 strm->task->thread_mask,
William Lallemand4c5b4d52016-11-21 08:51:11 +01002873 task_in_rq(strm->task) ? ", running" : "");
2874
2875 chunk_appendf(&trash,
2876 " age=%s)\n",
2877 human_time(now.tv_sec - strm->logs.accept_date.tv_sec, 1));
2878
2879 if (strm->txn)
2880 chunk_appendf(&trash,
Christopher Fauletbcac7862019-07-17 10:46:50 +02002881 " txn=%p flags=0x%x meth=%d status=%d req.st=%s rsp.st=%s req.f=0x%02x rsp.f=0x%02x\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002882 strm->txn, strm->txn->flags, strm->txn->meth, strm->txn->status,
Willy Tarreau7778b592019-01-07 10:38:10 +01002883 h1_msg_state_str(strm->txn->req.msg_state), h1_msg_state_str(strm->txn->rsp.msg_state),
Christopher Fauletbcac7862019-07-17 10:46:50 +02002884 strm->txn->req.flags, strm->txn->rsp.flags);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002885
2886 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01002887 " 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 +01002888 &strm->si[0],
2889 si_state_str(strm->si[0].state),
2890 strm->si[0].flags,
2891 obj_type_name(strm->si[0].end),
2892 obj_base_ptr(strm->si[0].end),
2893 strm->si[0].exp ?
2894 tick_is_expired(strm->si[0].exp, now_ms) ? "<PAST>" :
2895 human_time(TICKS_TO_MS(strm->si[0].exp - now_ms),
2896 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01002897 strm->si[0].err_type, strm->si[0].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002898
2899 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01002900 " 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 +01002901 &strm->si[1],
2902 si_state_str(strm->si[1].state),
2903 strm->si[1].flags,
2904 obj_type_name(strm->si[1].end),
2905 obj_base_ptr(strm->si[1].end),
2906 strm->si[1].exp ?
2907 tick_is_expired(strm->si[1].exp, now_ms) ? "<PAST>" :
2908 human_time(TICKS_TO_MS(strm->si[1].exp - now_ms),
2909 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01002910 strm->si[1].err_type, strm->si[1].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002911
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002912 if ((cs = objt_cs(strm->si[0].end)) != NULL) {
2913 conn = cs->conn;
2914
William Lallemand4c5b4d52016-11-21 08:51:11 +01002915 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02002916 " co0=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002917 conn,
2918 conn_get_ctrl_name(conn),
2919 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02002920 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002921 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01002922 obj_type_name(conn->target),
2923 obj_base_ptr(conn->target));
2924
2925 chunk_appendf(&trash,
Willy Tarreau76913d32019-08-30 14:33:11 +02002926 " flags=0x%08x fd=%d fd.state=%02x updt=%d fd.tmask=0x%lx\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002927 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02002928 conn->handle.fd,
2929 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01002930 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01002931 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01002932
2933 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002934 }
2935 else if ((tmpctx = objt_appctx(strm->si[0].end)) != NULL) {
2936 chunk_appendf(&trash,
Willy Tarreau22d63a22019-04-24 08:41:29 +02002937 " app0=%p st0=%d st1=%d st2=%d applet=%s tmask=0x%lx nice=%d calls=%u rate=%u cpu=%llu lat=%llu\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002938 tmpctx,
2939 tmpctx->st0,
2940 tmpctx->st1,
2941 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01002942 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02002943 tmpctx->thread_mask,
Willy Tarreau22d63a22019-04-24 08:41:29 +02002944 tmpctx->t->nice, tmpctx->t->calls, read_freq_ctr(&tmpctx->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02002945 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002946 }
2947
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002948 if ((cs = objt_cs(strm->si[1].end)) != NULL) {
2949 conn = cs->conn;
2950
William Lallemand4c5b4d52016-11-21 08:51:11 +01002951 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02002952 " co1=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002953 conn,
2954 conn_get_ctrl_name(conn),
2955 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02002956 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002957 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01002958 obj_type_name(conn->target),
2959 obj_base_ptr(conn->target));
2960
2961 chunk_appendf(&trash,
Willy Tarreau76913d32019-08-30 14:33:11 +02002962 " flags=0x%08x fd=%d fd.state=%02x updt=%d fd.tmask=0x%lx\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002963 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02002964 conn->handle.fd,
2965 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01002966 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01002967 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01002968
2969 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002970 }
2971 else if ((tmpctx = objt_appctx(strm->si[1].end)) != NULL) {
2972 chunk_appendf(&trash,
Willy Tarreau22d63a22019-04-24 08:41:29 +02002973 " app1=%p st0=%d st1=%d st2=%d applet=%s tmask=0x%lx nice=%d calls=%u rate=%u cpu=%llu lat=%llu\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002974 tmpctx,
2975 tmpctx->st0,
2976 tmpctx->st1,
2977 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01002978 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02002979 tmpctx->thread_mask,
Willy Tarreau22d63a22019-04-24 08:41:29 +02002980 tmpctx->t->nice, tmpctx->t->calls, read_freq_ctr(&tmpctx->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02002981 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002982 }
2983
2984 chunk_appendf(&trash,
2985 " req=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
2986 " an_exp=%s",
2987 &strm->req,
2988 strm->req.flags, strm->req.analysers,
2989 strm->req.pipe ? strm->req.pipe->data : 0,
2990 strm->req.to_forward, strm->req.total,
2991 strm->req.analyse_exp ?
2992 human_time(TICKS_TO_MS(strm->req.analyse_exp - now_ms),
2993 TICKS_TO_MS(1000)) : "<NEVER>");
2994
2995 chunk_appendf(&trash,
2996 " rex=%s",
2997 strm->req.rex ?
2998 human_time(TICKS_TO_MS(strm->req.rex - now_ms),
2999 TICKS_TO_MS(1000)) : "<NEVER>");
3000
3001 chunk_appendf(&trash,
3002 " wex=%s\n"
Christopher Fauletbcac7862019-07-17 10:46:50 +02003003 " buf=%p data=%p o=%u p=%u i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003004 strm->req.wex ?
3005 human_time(TICKS_TO_MS(strm->req.wex - now_ms),
3006 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003007 &strm->req.buf,
3008 b_orig(&strm->req.buf), (unsigned int)co_data(&strm->req),
Christopher Fauletbcac7862019-07-17 10:46:50 +02003009 (unsigned int)ci_head_ofs(&strm->req), (unsigned int)ci_data(&strm->req),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003010 (unsigned int)strm->req.buf.size);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003011
Christopher Fauletb9af8812019-01-04 14:30:44 +01003012 if (IS_HTX_STRM(strm)) {
3013 struct htx *htx = htxbuf(&strm->req.buf);
3014
3015 chunk_appendf(&trash,
Willy Tarreaub84e67f2019-01-07 10:01:34 +01003016 " htx=%p flags=0x%x size=%u data=%u used=%u wrap=%s extra=%llu\n",
Christopher Faulet192c6a22019-06-11 16:32:24 +02003017 htx, htx->flags, htx->size, htx->data, htx_nbblks(htx),
Christopher Faulet28f29c72019-04-30 17:55:45 +02003018 (htx->tail >= htx->head) ? "NO" : "YES",
Christopher Fauletb9af8812019-01-04 14:30:44 +01003019 (unsigned long long)htx->extra);
3020 }
3021
William Lallemand4c5b4d52016-11-21 08:51:11 +01003022 chunk_appendf(&trash,
3023 " res=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
3024 " an_exp=%s",
3025 &strm->res,
3026 strm->res.flags, strm->res.analysers,
3027 strm->res.pipe ? strm->res.pipe->data : 0,
3028 strm->res.to_forward, strm->res.total,
3029 strm->res.analyse_exp ?
3030 human_time(TICKS_TO_MS(strm->res.analyse_exp - now_ms),
3031 TICKS_TO_MS(1000)) : "<NEVER>");
3032
3033 chunk_appendf(&trash,
3034 " rex=%s",
3035 strm->res.rex ?
3036 human_time(TICKS_TO_MS(strm->res.rex - now_ms),
3037 TICKS_TO_MS(1000)) : "<NEVER>");
3038
3039 chunk_appendf(&trash,
3040 " wex=%s\n"
Christopher Fauletbcac7862019-07-17 10:46:50 +02003041 " buf=%p data=%p o=%u p=%u i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003042 strm->res.wex ?
3043 human_time(TICKS_TO_MS(strm->res.wex - now_ms),
3044 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003045 &strm->res.buf,
3046 b_orig(&strm->res.buf), (unsigned int)co_data(&strm->res),
Christopher Fauletbcac7862019-07-17 10:46:50 +02003047 (unsigned int)ci_head_ofs(&strm->res), (unsigned int)ci_data(&strm->res),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003048 (unsigned int)strm->res.buf.size);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003049
Christopher Fauletb9af8812019-01-04 14:30:44 +01003050 if (IS_HTX_STRM(strm)) {
3051 struct htx *htx = htxbuf(&strm->res.buf);
3052
3053 chunk_appendf(&trash,
3054 " htx=%p flags=0x%x size=%u data=%u used=%u wrap=%s extra=%llu\n",
Christopher Faulet192c6a22019-06-11 16:32:24 +02003055 htx, htx->flags, htx->size, htx->data, htx_nbblks(htx),
Christopher Faulet28f29c72019-04-30 17:55:45 +02003056 (htx->tail >= htx->head) ? "NO" : "YES",
Christopher Fauletb9af8812019-01-04 14:30:44 +01003057 (unsigned long long)htx->extra);
3058 }
3059
Willy Tarreaue6e52362019-01-04 17:42:57 +01003060 if (ci_putchk(si_ic(si), &trash) == -1)
3061 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003062
3063 /* use other states to dump the contents */
3064 }
3065 /* end of dump */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003066 done:
William Lallemand4c5b4d52016-11-21 08:51:11 +01003067 appctx->ctx.sess.uid = 0;
3068 appctx->ctx.sess.section = 0;
3069 return 1;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003070 full:
3071 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003072}
3073
3074
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003075static int cli_parse_show_sess(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemand4c5b4d52016-11-21 08:51:11 +01003076{
William Lallemand4c5b4d52016-11-21 08:51:11 +01003077 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
3078 return 1;
3079
3080 if (*args[2] && strcmp(args[2], "all") == 0)
3081 appctx->ctx.sess.target = (void *)-1;
3082 else if (*args[2])
3083 appctx->ctx.sess.target = (void *)strtoul(args[2], NULL, 0);
3084 else
3085 appctx->ctx.sess.target = NULL;
3086 appctx->ctx.sess.section = 0; /* start with stream status */
3087 appctx->ctx.sess.pos = 0;
3088
3089 return 0;
3090}
3091
3092/* This function dumps all streams' states onto the stream interface's
3093 * read buffer. It returns 0 if the output buffer is full and it needs
Willy Tarreaue6e52362019-01-04 17:42:57 +01003094 * to be called again, otherwise non-zero. It proceeds in an isolated
3095 * thread so there is no thread safety issue here.
William Lallemand4c5b4d52016-11-21 08:51:11 +01003096 */
3097static int cli_io_handler_dump_sess(struct appctx *appctx)
3098{
3099 struct stream_interface *si = appctx->owner;
3100 struct connection *conn;
3101
Willy Tarreaue6e52362019-01-04 17:42:57 +01003102 thread_isolate();
3103
William Lallemand4c5b4d52016-11-21 08:51:11 +01003104 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW))) {
3105 /* If we're forced to shut down, we might have to remove our
3106 * reference to the last stream being dumped.
3107 */
3108 if (appctx->st2 == STAT_ST_LIST) {
3109 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users)) {
3110 LIST_DEL(&appctx->ctx.sess.bref.users);
3111 LIST_INIT(&appctx->ctx.sess.bref.users);
3112 }
3113 }
Willy Tarreaue6e52362019-01-04 17:42:57 +01003114 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003115 }
3116
3117 chunk_reset(&trash);
3118
3119 switch (appctx->st2) {
3120 case STAT_ST_INIT:
3121 /* the function had not been called yet, let's prepare the
3122 * buffer for a response. We initialize the current stream
3123 * pointer to the first in the global list. When a target
3124 * stream is being destroyed, it is responsible for updating
3125 * this pointer. We know we have reached the end when this
3126 * pointer points back to the head of the streams list.
3127 */
3128 LIST_INIT(&appctx->ctx.sess.bref.users);
3129 appctx->ctx.sess.bref.ref = streams.n;
3130 appctx->st2 = STAT_ST_LIST;
3131 /* fall through */
3132
3133 case STAT_ST_LIST:
3134 /* first, let's detach the back-ref from a possible previous stream */
3135 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users)) {
3136 LIST_DEL(&appctx->ctx.sess.bref.users);
3137 LIST_INIT(&appctx->ctx.sess.bref.users);
3138 }
3139
3140 /* and start from where we stopped */
3141 while (appctx->ctx.sess.bref.ref != &streams) {
3142 char pn[INET6_ADDRSTRLEN];
3143 struct stream *curr_strm;
3144
3145 curr_strm = LIST_ELEM(appctx->ctx.sess.bref.ref, struct stream *, list);
3146
3147 if (appctx->ctx.sess.target) {
3148 if (appctx->ctx.sess.target != (void *)-1 && appctx->ctx.sess.target != curr_strm)
3149 goto next_sess;
3150
3151 LIST_ADDQ(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
3152 /* call the proper dump() function and return if we're missing space */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003153 if (!stats_dump_full_strm_to_buffer(si, curr_strm))
3154 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003155
3156 /* stream dump complete */
3157 LIST_DEL(&appctx->ctx.sess.bref.users);
3158 LIST_INIT(&appctx->ctx.sess.bref.users);
3159 if (appctx->ctx.sess.target != (void *)-1) {
3160 appctx->ctx.sess.target = NULL;
3161 break;
3162 }
3163 else
3164 goto next_sess;
3165 }
3166
3167 chunk_appendf(&trash,
3168 "%p: proto=%s",
3169 curr_strm,
3170 strm_li(curr_strm) ? strm_li(curr_strm)->proto->name : "?");
3171
3172 conn = objt_conn(strm_orig(curr_strm));
Willy Tarreau71e34c12019-07-17 15:07:06 +02003173 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003174 case AF_INET:
3175 case AF_INET6:
3176 chunk_appendf(&trash,
3177 " src=%s:%d fe=%s be=%s srv=%s",
3178 pn,
Willy Tarreau71e34c12019-07-17 15:07:06 +02003179 get_host_port(conn->src),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003180 strm_fe(curr_strm)->id,
3181 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
3182 objt_server(curr_strm->target) ? objt_server(curr_strm->target)->id : "<none>"
3183 );
3184 break;
3185 case AF_UNIX:
3186 chunk_appendf(&trash,
3187 " src=unix:%d fe=%s be=%s srv=%s",
3188 strm_li(curr_strm)->luid,
3189 strm_fe(curr_strm)->id,
3190 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
3191 objt_server(curr_strm->target) ? objt_server(curr_strm->target)->id : "<none>"
3192 );
3193 break;
3194 }
3195
3196 chunk_appendf(&trash,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003197 " ts=%02x age=%s calls=%u rate=%u cpu=%llu lat=%llu",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003198 curr_strm->task->state,
3199 human_time(now.tv_sec - curr_strm->logs.tv_accept.tv_sec, 1),
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003200 curr_strm->task->calls, read_freq_ctr(&curr_strm->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003201 (unsigned long long)curr_strm->task->cpu_time, (unsigned long long)curr_strm->task->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003202
3203 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003204 " rq[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003205 curr_strm->req.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003206 (unsigned int)ci_data(&curr_strm->req),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003207 curr_strm->req.analysers,
3208 curr_strm->req.rex ?
3209 human_time(TICKS_TO_MS(curr_strm->req.rex - now_ms),
3210 TICKS_TO_MS(1000)) : "");
3211
3212 chunk_appendf(&trash,
3213 ",wx=%s",
3214 curr_strm->req.wex ?
3215 human_time(TICKS_TO_MS(curr_strm->req.wex - now_ms),
3216 TICKS_TO_MS(1000)) : "");
3217
3218 chunk_appendf(&trash,
3219 ",ax=%s]",
3220 curr_strm->req.analyse_exp ?
3221 human_time(TICKS_TO_MS(curr_strm->req.analyse_exp - now_ms),
3222 TICKS_TO_MS(1000)) : "");
3223
3224 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003225 " rp[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003226 curr_strm->res.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003227 (unsigned int)ci_data(&curr_strm->res),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003228 curr_strm->res.analysers,
3229 curr_strm->res.rex ?
3230 human_time(TICKS_TO_MS(curr_strm->res.rex - now_ms),
3231 TICKS_TO_MS(1000)) : "");
3232
3233 chunk_appendf(&trash,
3234 ",wx=%s",
3235 curr_strm->res.wex ?
3236 human_time(TICKS_TO_MS(curr_strm->res.wex - now_ms),
3237 TICKS_TO_MS(1000)) : "");
3238
3239 chunk_appendf(&trash,
3240 ",ax=%s]",
3241 curr_strm->res.analyse_exp ?
3242 human_time(TICKS_TO_MS(curr_strm->res.analyse_exp - now_ms),
3243 TICKS_TO_MS(1000)) : "");
3244
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003245 conn = cs_conn(objt_cs(curr_strm->si[0].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003246 chunk_appendf(&trash,
3247 " s0=[%d,%1xh,fd=%d,ex=%s]",
3248 curr_strm->si[0].state,
3249 curr_strm->si[0].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003250 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003251 curr_strm->si[0].exp ?
3252 human_time(TICKS_TO_MS(curr_strm->si[0].exp - now_ms),
3253 TICKS_TO_MS(1000)) : "");
3254
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003255 conn = cs_conn(objt_cs(curr_strm->si[1].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003256 chunk_appendf(&trash,
3257 " s1=[%d,%1xh,fd=%d,ex=%s]",
3258 curr_strm->si[1].state,
3259 curr_strm->si[1].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003260 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003261 curr_strm->si[1].exp ?
3262 human_time(TICKS_TO_MS(curr_strm->si[1].exp - now_ms),
3263 TICKS_TO_MS(1000)) : "");
3264
3265 chunk_appendf(&trash,
3266 " exp=%s",
3267 curr_strm->task->expire ?
3268 human_time(TICKS_TO_MS(curr_strm->task->expire - now_ms),
3269 TICKS_TO_MS(1000)) : "");
3270 if (task_in_rq(curr_strm->task))
3271 chunk_appendf(&trash, " run(nice=%d)", curr_strm->task->nice);
3272
3273 chunk_appendf(&trash, "\n");
3274
Willy Tarreau06d80a92017-10-19 14:32:15 +02003275 if (ci_putchk(si_ic(si), &trash) == -1) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003276 /* let's try again later from this stream. We add ourselves into
3277 * this stream's users so that it can remove us upon termination.
3278 */
William Lallemand4c5b4d52016-11-21 08:51:11 +01003279 LIST_ADDQ(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
Willy Tarreaue6e52362019-01-04 17:42:57 +01003280 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003281 }
3282
3283 next_sess:
3284 appctx->ctx.sess.bref.ref = curr_strm->list.n;
3285 }
3286
3287 if (appctx->ctx.sess.target && appctx->ctx.sess.target != (void *)-1) {
3288 /* specified stream not found */
3289 if (appctx->ctx.sess.section > 0)
3290 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
3291 else
3292 chunk_appendf(&trash, "Session not found.\n");
3293
Willy Tarreaue6e52362019-01-04 17:42:57 +01003294 if (ci_putchk(si_ic(si), &trash) == -1)
3295 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003296
3297 appctx->ctx.sess.target = NULL;
3298 appctx->ctx.sess.uid = 0;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003299 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003300 }
William Lallemand4c5b4d52016-11-21 08:51:11 +01003301 /* fall through */
3302
3303 default:
3304 appctx->st2 = STAT_ST_FIN;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003305 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003306 }
Willy Tarreaue6e52362019-01-04 17:42:57 +01003307 done:
3308 thread_release();
3309 return 1;
3310 full:
3311 thread_release();
3312 si_rx_room_blk(si);
3313 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003314}
3315
3316static void cli_release_show_sess(struct appctx *appctx)
3317{
3318 if (appctx->st2 == STAT_ST_LIST) {
Willy Tarreau7ce3f092017-11-10 16:24:41 +01003319 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003320 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users))
3321 LIST_DEL(&appctx->ctx.sess.bref.users);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003322 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003323 }
3324}
3325
Willy Tarreau61b65212016-11-24 11:09:25 +01003326/* Parses the "shutdown session" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003327static int cli_parse_shutdown_session(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau61b65212016-11-24 11:09:25 +01003328{
3329 struct stream *strm, *ptr;
3330
3331 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3332 return 1;
3333
Willy Tarreau9d008692019-08-09 11:21:01 +02003334 if (!*args[2])
3335 return cli_err(appctx, "Session pointer expected (use 'show sess').\n");
Willy Tarreau61b65212016-11-24 11:09:25 +01003336
3337 ptr = (void *)strtoul(args[2], NULL, 0);
3338
3339 /* first, look for the requested stream in the stream table */
3340 list_for_each_entry(strm, &streams, list) {
3341 if (strm == ptr)
3342 break;
3343 }
3344
3345 /* do we have the stream ? */
Willy Tarreau9d008692019-08-09 11:21:01 +02003346 if (strm != ptr)
3347 return cli_err(appctx, "No such session (use 'show sess').\n");
Willy Tarreau61b65212016-11-24 11:09:25 +01003348
3349 stream_shutdown(strm, SF_ERR_KILLED);
3350 return 1;
3351}
3352
Willy Tarreau4e46b622016-11-23 16:50:48 +01003353/* Parses the "shutdown session server" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003354static int cli_parse_shutdown_sessions_server(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau4e46b622016-11-23 16:50:48 +01003355{
3356 struct server *sv;
Willy Tarreau4e46b622016-11-23 16:50:48 +01003357
3358 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3359 return 1;
3360
3361 sv = cli_find_server(appctx, args[3]);
3362 if (!sv)
3363 return 1;
3364
3365 /* kill all the stream that are on this server */
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003366 HA_SPIN_LOCK(SERVER_LOCK, &sv->lock);
Willy Tarreaud9e26a72019-11-14 16:37:16 +01003367 srv_shutdown_streams(sv, SF_ERR_KILLED);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003368 HA_SPIN_UNLOCK(SERVER_LOCK, &sv->lock);
Willy Tarreau4e46b622016-11-23 16:50:48 +01003369 return 1;
3370}
3371
William Lallemand4c5b4d52016-11-21 08:51:11 +01003372/* register cli keywords */
3373static struct cli_kw_list cli_kws = {{ },{
3374 { { "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 +01003375 { { "shutdown", "session", NULL }, "shutdown session : kill a specific session", cli_parse_shutdown_session, NULL, NULL },
Willy Tarreau4e46b622016-11-23 16:50:48 +01003376 { { "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 +01003377 {{},}
3378}};
3379
Willy Tarreau0108d902018-11-25 19:14:37 +01003380INITCALL1(STG_REGISTER, cli_register_kw, &cli_kws);
3381
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003382/* main configuration keyword registration. */
3383static struct action_kw_list stream_tcp_keywords = { ILH, {
3384 { "use-service", stream_parse_use_service },
3385 { /* END */ }
3386}};
3387
Willy Tarreau0108d902018-11-25 19:14:37 +01003388INITCALL1(STG_REGISTER, tcp_req_cont_keywords_register, &stream_tcp_keywords);
3389
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003390static struct action_kw_list stream_http_keywords = { ILH, {
3391 { "use-service", stream_parse_use_service },
3392 { /* END */ }
3393}};
3394
Willy Tarreau0108d902018-11-25 19:14:37 +01003395INITCALL1(STG_REGISTER, http_req_keywords_register, &stream_http_keywords);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003396
Willy Tarreaubaaee002006-06-26 02:48:02 +02003397/*
3398 * Local variables:
3399 * c-indent-level: 8
3400 * c-basic-offset: 8
3401 * End:
3402 */