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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));
Tim Duesterhus127a74d2020-02-28 15:13:33 +010069DECLARE_POOL(pool_head_uniqueid, "uniqueid", UNIQUEID_LEN);
Willy Tarreau8ceae722018-11-26 11:58:30 +010070
Willy Tarreaub6b3df32018-11-26 16:31:20 +010071struct list streams = LIST_HEAD_INIT(streams);
Willy Tarreau86abe442018-11-25 20:12:18 +010072__decl_spinlock(streams_lock);
Willy Tarreaubaaee002006-06-26 02:48:02 +020073
Thierry FOURNIER5a363e72015-09-27 19:29:33 +020074/* List of all use-service keywords. */
75static struct list service_keywords = LIST_HEAD_INIT(service_keywords);
76
Willy Tarreau5790eb02017-08-28 17:18:36 +020077
Christopher Fauleteea8fc72019-11-05 16:18:10 +010078/* trace source and events */
79static void strm_trace(enum trace_level level, uint64_t mask,
80 const struct trace_source *src,
81 const struct ist where, const struct ist func,
82 const void *a1, const void *a2, const void *a3, const void *a4);
83
84/* The event representation is split like this :
85 * strm - stream
86 * si - stream interface
87 * http - http analyzis
88 * tcp - tcp analyzis
89 *
90 * STRM_EV_* macros are defined in <proto/stream.h>
91 */
92static const struct trace_event strm_trace_events[] = {
93 { .mask = STRM_EV_STRM_NEW, .name = "strm_new", .desc = "new stream" },
94 { .mask = STRM_EV_STRM_FREE, .name = "strm_free", .desc = "release stream" },
95 { .mask = STRM_EV_STRM_ERR, .name = "strm_err", .desc = "error during stream processing" },
96 { .mask = STRM_EV_STRM_ANA, .name = "strm_ana", .desc = "stream analyzers" },
97 { .mask = STRM_EV_STRM_PROC, .name = "strm_proc", .desc = "stream processing" },
98
99 { .mask = STRM_EV_SI_ST, .name = "si_state", .desc = "processing stream-interface states" },
100
101 { .mask = STRM_EV_HTTP_ANA, .name = "http_ana", .desc = "HTTP analyzers" },
102 { .mask = STRM_EV_HTTP_ERR, .name = "http_err", .desc = "error during HTTP analyzis" },
103
104 { .mask = STRM_EV_TCP_ANA, .name = "tcp_ana", .desc = "TCP analyzers" },
105 { .mask = STRM_EV_TCP_ERR, .name = "tcp_err", .desc = "error during TCP analyzis" },
106 {}
107};
108
109static const struct name_desc strm_trace_lockon_args[4] = {
110 /* arg1 */ { /* already used by the stream */ },
111 /* arg2 */ { },
112 /* arg3 */ { },
113 /* arg4 */ { }
114};
115
116static const struct name_desc strm_trace_decoding[] = {
117#define STRM_VERB_CLEAN 1
118 { .name="clean", .desc="only user-friendly stuff, generally suitable for level \"user\"" },
119#define STRM_VERB_MINIMAL 2
120 { .name="minimal", .desc="report info on stream and stream-interfaces" },
121#define STRM_VERB_SIMPLE 3
122 { .name="simple", .desc="add info on request and response channels" },
123#define STRM_VERB_ADVANCED 4
124 { .name="advanced", .desc="add info on channel's buffer for data and developer levels only" },
125#define STRM_VERB_COMPLETE 5
126 { .name="complete", .desc="add info on channel's buffer" },
127 { /* end */ }
128};
129
130struct trace_source trace_strm = {
131 .name = IST("stream"),
132 .desc = "Applicative stream",
133 .arg_def = TRC_ARG1_STRM, // TRACE()'s first argument is always a stream
134 .default_cb = strm_trace,
135 .known_events = strm_trace_events,
136 .lockon_args = strm_trace_lockon_args,
137 .decoding = strm_trace_decoding,
138 .report_events = ~0, // report everything by default
139};
140
141#define TRACE_SOURCE &trace_strm
142INITCALL1(STG_REGISTER, trace_register_source, TRACE_SOURCE);
143
144/* the stream traces always expect that arg1, if non-null, is of a stream (from
145 * which we can derive everything), that arg2, if non-null, is an http
146 * transaction, that arg3, if non-null, is an http message.
147 */
148static void strm_trace(enum trace_level level, uint64_t mask, const struct trace_source *src,
149 const struct ist where, const struct ist func,
150 const void *a1, const void *a2, const void *a3, const void *a4)
151{
152 const struct stream *s = a1;
153 const struct http_txn *txn = a2;
154 const struct http_msg *msg = a3;
155 struct task *task;
156 const struct stream_interface *si_f, *si_b;
157 const struct channel *req, *res;
158 struct htx *htx;
159
160 if (!s || src->verbosity < STRM_VERB_CLEAN)
161 return;
162
163 task = s->task;
164 si_f = &s->si[0];
165 si_b = &s->si[1];
166 req = &s->req;
167 res = &s->res;
168 htx = (msg ? htxbuf(&msg->chn->buf) : NULL);
169
170 /* General info about the stream (htx/tcp, id...) */
171 chunk_appendf(&trace_buf, " : [%u,%s]",
172 s->uniq_id, ((s->flags & SF_HTX) ? "HTX" : "TCP"));
Tim Duesterhusa17e6622020-03-05 20:19:02 +0100173 if (isttest(s->unique_id)) {
174 chunk_appendf(&trace_buf, " id=");
175 b_putist(&trace_buf, s->unique_id);
176 }
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100177
178 /* Front and back stream-int state */
179 chunk_appendf(&trace_buf, " SI=(%s,%s)",
180 si_state_str(si_f->state), si_state_str(si_b->state));
181
182 /* If txn is defined, HTTP req/rep states */
183 if (txn)
184 chunk_appendf(&trace_buf, " HTTP=(%s,%s)",
185 h1_msg_state_str(txn->req.msg_state), h1_msg_state_str(txn->rsp.msg_state));
186 if (msg)
187 chunk_appendf(&trace_buf, " %s", ((msg->chn->flags & CF_ISRESP) ? "RESPONSE" : "REQUEST"));
188
189 if (src->verbosity == STRM_VERB_CLEAN)
190 return;
191
192 /* If msg defined, display status-line if possible (verbosity > MINIMAL) */
193 if (src->verbosity > STRM_VERB_MINIMAL && htx && htx_nbblks(htx)) {
194 const struct htx_blk *blk = htx_get_head_blk(htx);
195 const struct htx_sl *sl = htx_get_blk_ptr(htx, blk);
196 enum htx_blk_type type = htx_get_blk_type(blk);
197
198 if (type == HTX_BLK_REQ_SL || type == HTX_BLK_RES_SL)
199 chunk_appendf(&trace_buf, " - \"%.*s %.*s %.*s\"",
200 HTX_SL_P1_LEN(sl), HTX_SL_P1_PTR(sl),
201 HTX_SL_P2_LEN(sl), HTX_SL_P2_PTR(sl),
202 HTX_SL_P3_LEN(sl), HTX_SL_P3_PTR(sl));
203 }
204
205
206 /* If txn defined info about HTTP msgs, otherwise info about SI. */
207 if (txn) {
208 chunk_appendf(&trace_buf, " - t=%p s=(%p,0x%08x) txn.flags=0x%08x, http.flags=(0x%08x,0x%08x) status=%d",
209 task, s, s->flags, txn->flags, txn->req.flags, txn->rsp.flags, txn->status);
210 }
211 else {
212 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",
213 task, s, s->flags, si_f, si_f->flags, si_f->err_type,
214 si_b, si_b->flags, si_b->err_type, si_b->conn_retries);
215 }
216
217 if (src->verbosity == STRM_VERB_MINIMAL)
218 return;
219
220
221 /* If txn defined, don't display all channel info */
222 if (src->verbosity == STRM_VERB_SIMPLE || txn) {
223 chunk_appendf(&trace_buf, " req=(%p .fl=0x%08x .exp(r,w,a)=(%u,%u,%u))",
224 req, req->flags, req->rex, req->wex, req->analyse_exp);
225 chunk_appendf(&trace_buf, " res=(%p .fl=0x%08x .exp(r,w,a)=(%u,%u,%u))",
226 res, res->flags, res->rex, res->wex, res->analyse_exp);
227 }
228 else {
229 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)",
230 req, req->flags, req->analysers, req->rex, req->wex, req->analyse_exp,
Willy Tarreaue18f53e2019-11-27 15:41:31 +0100231 (long)req->output, req->total, req->to_forward);
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100232 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)",
233 res, res->flags, res->analysers, res->rex, res->wex, res->analyse_exp,
Willy Tarreaue18f53e2019-11-27 15:41:31 +0100234 (long)res->output, res->total, res->to_forward);
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100235 }
236
237 if (src->verbosity == STRM_VERB_SIMPLE ||
238 (src->verbosity == STRM_VERB_ADVANCED && src->level < TRACE_LEVEL_DATA))
239 return;
240
241 /* channels' buffer info */
242 if (s->flags & SF_HTX) {
243 struct htx *rqhtx = htxbuf(&req->buf);
244 struct htx *rphtx = htxbuf(&res->buf);
245
246 chunk_appendf(&trace_buf, " htx=(%u/%u#%u, %u/%u#%u)",
247 rqhtx->data, rqhtx->size, htx_nbblks(rqhtx),
248 rphtx->data, rphtx->size, htx_nbblks(rphtx));
249 }
250 else {
251 chunk_appendf(&trace_buf, " buf=(%u@%p+%u/%u, %u@%p+%u/%u)",
252 (unsigned int)b_data(&req->buf), b_orig(&req->buf),
253 (unsigned int)b_head_ofs(&req->buf), (unsigned int)b_size(&req->buf),
254 (unsigned int)b_data(&req->buf), b_orig(&req->buf),
255 (unsigned int)b_head_ofs(&req->buf), (unsigned int)b_size(&req->buf));
256 }
257
258 /* If msg defined, display htx info if defined (level > USER) */
259 if (src->level > TRACE_LEVEL_USER && htx && htx_nbblks(htx)) {
260 int full = 0;
261
262 /* Full htx info (level > STATE && verbosity > SIMPLE) */
263 if (src->level > TRACE_LEVEL_STATE) {
264 if (src->verbosity == STRM_VERB_COMPLETE)
265 full = 1;
266 }
267
268 chunk_memcat(&trace_buf, "\n\t", 2);
269 htx_dump(&trace_buf, htx, full);
270 }
271}
272
Willy Tarreau5790eb02017-08-28 17:18:36 +0200273/* Create a new stream for connection <conn>. Return < 0 on error. This is only
274 * valid right after the handshake, before the connection's data layer is
275 * initialized, because it relies on the session to be in conn->owner.
276 */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200277int stream_create_from_cs(struct conn_stream *cs)
Willy Tarreau5790eb02017-08-28 17:18:36 +0200278{
279 struct stream *strm;
280
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200281 strm = stream_new(cs->conn->owner, &cs->obj_type);
Willy Tarreau5790eb02017-08-28 17:18:36 +0200282 if (strm == NULL)
283 return -1;
284
285 task_wakeup(strm->task, TASK_WOKEN_INIT);
286 return 0;
287}
288
Willy Tarreaub882dd82018-11-06 15:50:21 +0100289/* Callback used to wake up a stream when an input buffer is available. The
290 * stream <s>'s stream interfaces are checked for a failed buffer allocation
Willy Tarreaud0f5bbc2018-11-14 11:10:26 +0100291 * as indicated by the presence of the SI_FL_RXBLK_ROOM flag and the lack of a
Willy Tarreaub882dd82018-11-06 15:50:21 +0100292 * buffer, and and input buffer is assigned there (at most one). The function
293 * returns 1 and wakes the stream up if a buffer was taken, otherwise zero.
294 * It's designed to be called from __offer_buffer().
295 */
296int stream_buf_available(void *arg)
297{
298 struct stream *s = arg;
299
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100300 if (!s->req.buf.size && !s->req.pipe && (s->si[0].flags & SI_FL_RXBLK_BUFF) &&
Willy Tarreaub882dd82018-11-06 15:50:21 +0100301 b_alloc_margin(&s->req.buf, global.tune.reserved_bufs))
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100302 si_rx_buff_rdy(&s->si[0]);
303 else if (!s->res.buf.size && !s->res.pipe && (s->si[1].flags & SI_FL_RXBLK_BUFF) &&
Willy Tarreaub882dd82018-11-06 15:50:21 +0100304 b_alloc_margin(&s->res.buf, 0))
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100305 si_rx_buff_rdy(&s->si[1]);
Willy Tarreaub882dd82018-11-06 15:50:21 +0100306 else
307 return 0;
308
309 task_wakeup(s->task, TASK_WOKEN_RES);
310 return 1;
311
312}
313
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200314/* This function is called from the session handler which detects the end of
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200315 * handshake, in order to complete initialization of a valid stream. It must be
Joseph Herlant4cc8d0d2018-11-15 09:14:14 -0800316 * called with a completely initialized session. It returns the pointer to
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200317 * the newly created stream, or NULL in case of fatal error. The client-facing
Willy Tarreau87787ac2017-08-28 16:22:54 +0200318 * end point is assigned to <origin>, which must be valid. The stream's task
319 * is configured with a nice value inherited from the listener's nice if any.
320 * The task's context is set to the new stream, and its function is set to
321 * process_stream(). Target and analysers are null.
Willy Tarreau2542b532012-08-31 16:01:23 +0200322 */
Willy Tarreau87787ac2017-08-28 16:22:54 +0200323struct stream *stream_new(struct session *sess, enum obj_type *origin)
Willy Tarreau2542b532012-08-31 16:01:23 +0200324{
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200325 struct stream *s;
Willy Tarreau87787ac2017-08-28 16:22:54 +0200326 struct task *t;
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200327 struct conn_stream *cs = objt_cs(origin);
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200328 struct appctx *appctx = objt_appctx(origin);
Christopher Fauletb3484d62018-11-29 15:19:05 +0100329 const struct cs_info *csinfo;
Willy Tarreau2542b532012-08-31 16:01:23 +0200330
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100331 DBG_TRACE_ENTER(STRM_EV_STRM_NEW);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100332 if (unlikely((s = pool_alloc(pool_head_stream)) == NULL))
Willy Tarreau87787ac2017-08-28 16:22:54 +0200333 goto out_fail_alloc;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200334
335 /* minimum stream initialization required for an embryonic stream is
336 * fairly low. We need very little to execute L4 ACLs, then we need a
337 * task to make the client-side connection live on its own.
338 * - flags
339 * - stick-entry tracking
340 */
341 s->flags = 0;
Willy Tarreaufb9f5842015-04-05 18:19:23 +0200342 s->logs.logwait = sess->fe->to_log;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200343 s->logs.level = 0;
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200344 tv_zero(&s->logs.tv_request);
345 s->logs.t_queue = -1;
346 s->logs.t_connect = -1;
347 s->logs.t_data = -1;
348 s->logs.t_close = 0;
349 s->logs.bytes_in = s->logs.bytes_out = 0;
Patrick Hemmerffe5e8c2018-05-11 12:52:31 -0400350 s->logs.prx_queue_pos = 0; /* we get the number of pending conns before us */
351 s->logs.srv_queue_pos = 0; /* we will get this number soon */
Baptiste Assmann333939c2019-01-21 08:34:50 +0100352 s->obj_type = OBJ_TYPE_STREAM;
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200353
Christopher Fauletb3484d62018-11-29 15:19:05 +0100354 csinfo = si_get_cs_info(cs);
355 if (csinfo) {
356 s->logs.accept_date = csinfo->create_date;
357 s->logs.tv_accept = csinfo->tv_create;
358 s->logs.t_handshake = csinfo->t_handshake;
359 s->logs.t_idle = csinfo->t_idle;
360 }
361 else {
362 s->logs.accept_date = sess->accept_date;
363 s->logs.tv_accept = sess->tv_accept;
364 s->logs.t_handshake = sess->t_handshake;
365 s->logs.t_idle = -1;
366 }
367
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200368 /* default logging function */
369 s->do_log = strm_log;
370
371 /* default error reporting function, may be changed by analysers */
372 s->srv_error = default_srv_error;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200373
374 /* Initialise the current rule list pointer to NULL. We are sure that
375 * any rulelist match the NULL pointer.
376 */
377 s->current_rule_list = NULL;
Remi Gacogne7fb9de22015-07-22 17:10:58 +0200378 s->current_rule = NULL;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200379
Willy Tarreaua68f7622015-09-21 17:48:24 +0200380 /* Copy SC counters for the stream. We don't touch refcounts because
381 * any reference we have is inherited from the session. Since the stream
382 * doesn't exist without the session, the session's existence guarantees
383 * we don't lose the entry. During the store operation, the stream won't
384 * touch these ones.
Thierry FOURNIER827752e2015-08-18 11:34:18 +0200385 */
Thierry FOURNIERc8fdb982015-08-16 12:03:39 +0200386 memcpy(s->stkctr, sess->stkctr, sizeof(s->stkctr));
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200387
388 s->sess = sess;
389 s->si[0].flags = SI_FL_NONE;
390 s->si[1].flags = SI_FL_ISBACK;
391
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100392 s->uniq_id = _HA_ATOMIC_XADD(&global.req_count, 1);
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200393
Willy Tarreau87b09662015-04-03 00:22:06 +0200394 /* OK, we're keeping the stream, so let's properly initialize the stream */
Willy Tarreau2542b532012-08-31 16:01:23 +0200395 LIST_INIT(&s->back_refs);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100396
Willy Tarreau21046592020-02-26 10:39:36 +0100397 MT_LIST_INIT(&s->buffer_wait.list);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100398 s->buffer_wait.target = s;
Willy Tarreaub882dd82018-11-06 15:50:21 +0100399 s->buffer_wait.wakeup_cb = stream_buf_available;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200400
Willy Tarreau2e9c1d22019-04-24 08:28:31 +0200401 s->call_rate.curr_sec = s->call_rate.curr_ctr = s->call_rate.prev_ctr = 0;
William Lallemandcf62f7e2018-10-26 14:47:40 +0200402 s->pcli_next_pid = 0;
William Lallemandebf61802018-12-11 16:10:57 +0100403 s->pcli_flags = 0;
Tim Duesterhusa17e6622020-03-05 20:19:02 +0100404 s->unique_id = IST_NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200405
Emeric Brunc60def82017-09-27 14:59:38 +0200406 if ((t = task_new(tid_bit)) == NULL)
Willy Tarreau87787ac2017-08-28 16:22:54 +0200407 goto out_fail_alloc;
408
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200409 s->task = t;
Christopher Faulet9d810ca2016-12-08 22:33:52 +0100410 s->pending_events = 0;
Willy Tarreaud1769b82015-04-06 00:25:48 +0200411 t->process = process_stream;
Willy Tarreau2542b532012-08-31 16:01:23 +0200412 t->context = s;
413 t->expire = TICK_ETERNITY;
Willy Tarreau87787ac2017-08-28 16:22:54 +0200414 if (sess->listener)
415 t->nice = sess->listener->nice;
Willy Tarreau2542b532012-08-31 16:01:23 +0200416
Willy Tarreau87b09662015-04-03 00:22:06 +0200417 /* Note: initially, the stream's backend points to the frontend.
Willy Tarreau2542b532012-08-31 16:01:23 +0200418 * This changes later when switching rules are executed or
419 * when the default backend is assigned.
420 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200421 s->be = sess->fe;
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200422 s->req.buf = BUF_NULL;
423 s->res.buf = BUF_NULL;
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200424 s->req_cap = NULL;
425 s->res_cap = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200426
Willy Tarreauebcd4842015-06-19 11:59:02 +0200427 /* Initialise all the variables contexts even if not used.
428 * This permits to prune these contexts without errors.
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200429 */
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200430 vars_init(&s->vars_txn, SCOPE_TXN);
431 vars_init(&s->vars_reqres, SCOPE_REQ);
432
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200433 /* this part should be common with other protocols */
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200434 if (si_reset(&s->si[0]) < 0)
435 goto out_fail_alloc;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200436 si_set_state(&s->si[0], SI_ST_EST);
Hongbo Longe39683c2017-03-10 18:41:51 +0100437 s->si[0].hcto = sess->fe->timeout.clientfin;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200438
Christopher Faulet0e160ff2019-04-03 10:01:07 +0200439 if (cs && cs->conn->mux) {
440 if (cs->conn->mux->flags & MX_FL_CLEAN_ABRT)
441 s->si[0].flags |= SI_FL_CLEAN_ABRT;
442 if (cs->conn->mux->flags & MX_FL_HTX)
443 s->flags |= SF_HTX;
444 }
Christopher Faulet3494c632019-07-15 14:58:26 +0200445 /* Set SF_HTX flag for HTTP frontends. */
446 if (sess->fe->mode == PR_MODE_HTTP)
Christopher Faulet0e160ff2019-04-03 10:01:07 +0200447 s->flags |= SF_HTX;
Willy Tarreau984fca92017-12-20 16:31:43 +0100448
Willy Tarreau1f52bb22015-04-04 14:28:46 +0200449 /* attach the incoming connection to the stream interface now. */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200450 if (cs)
451 si_attach_cs(&s->si[0], cs);
Willy Tarreau470280e2015-04-05 01:33:13 +0200452 else if (appctx)
453 si_attach_appctx(&s->si[0], appctx);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200454
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200455 if (likely(sess->fe->options2 & PR_O2_INDEPSTR))
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200456 s->si[0].flags |= SI_FL_INDEP_STR;
457
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200458 /* pre-initialize the other side's stream interface to an INIT state. The
459 * callbacks will be initialized before attempting to connect.
460 */
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200461 if (si_reset(&s->si[1]) < 0)
462 goto out_fail_alloc_si1;
Hongbo Longe39683c2017-03-10 18:41:51 +0100463 s->si[1].hcto = TICK_ETERNITY;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200464
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200465 if (likely(sess->fe->options2 & PR_O2_INDEPSTR))
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200466 s->si[1].flags |= SI_FL_INDEP_STR;
467
Willy Tarreau87b09662015-04-03 00:22:06 +0200468 stream_init_srv_conn(s);
Willy Tarreau9b82d942016-12-05 00:26:31 +0100469 s->target = sess->listener ? sess->listener->default_target : NULL;
Willy Tarreau90420602019-07-18 15:09:57 +0200470 s->target_addr = NULL;
Willy Tarreau9b82d942016-12-05 00:26:31 +0100471
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200472 s->pend_pos = NULL;
Patrick Hemmer268a7072018-05-11 12:52:31 -0400473 s->priority_class = 0;
474 s->priority_offset = 0;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200475
476 /* init store persistence */
477 s->store_count = 0;
478
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100479 channel_init(&s->req);
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100480 s->req.flags |= CF_READ_ATTACHED; /* the producer is already connected */
Willy Tarreau9b82d942016-12-05 00:26:31 +0100481 s->req.analysers = sess->listener ? sess->listener->analysers : 0;
Willy Tarreaue223e3b2017-11-18 15:39:10 +0100482
483 if (!sess->fe->fe_req_ana) {
484 channel_auto_connect(&s->req); /* don't wait to establish connection */
485 channel_auto_close(&s->req); /* let the producer forward close requests */
486 }
Willy Tarreauc8815ef2015-04-05 18:15:59 +0200487
488 s->req.rto = sess->fe->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100489 s->req.wto = TICK_ETERNITY;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100490 s->req.rex = TICK_ETERNITY;
491 s->req.wex = TICK_ETERNITY;
492 s->req.analyse_exp = TICK_ETERNITY;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200493
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100494 channel_init(&s->res);
Willy Tarreauef573c02014-11-28 14:17:09 +0100495 s->res.flags |= CF_ISRESP;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100496 s->res.analysers = 0;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200497
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200498 if (sess->fe->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100499 s->req.flags |= CF_NEVER_WAIT;
500 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200501 }
502
Willy Tarreauc8815ef2015-04-05 18:15:59 +0200503 s->res.wto = sess->fe->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100504 s->res.rto = TICK_ETERNITY;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100505 s->res.rex = TICK_ETERNITY;
506 s->res.wex = TICK_ETERNITY;
507 s->res.analyse_exp = TICK_ETERNITY;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200508
Willy Tarreaueee5b512015-04-03 23:46:31 +0200509 s->txn = NULL;
Thierry FOURNIER2c8b54e2016-12-17 12:45:32 +0100510 s->hlua = NULL;
Thierry FOURNIER65f34c62015-02-16 20:11:43 +0100511
Frédéric Lécaillebed883a2019-04-23 17:26:33 +0200512 s->dns_ctx.dns_requester = NULL;
513 s->dns_ctx.hostname_dn = NULL;
514 s->dns_ctx.hostname_dn_len = 0;
515 s->dns_ctx.parent = NULL;
516
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100517 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200518 LIST_ADDQ(&streams, &s->list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100519 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200520
Christopher Faulet92d36382015-11-05 13:35:03 +0100521 if (flt_stream_init(s) < 0 || flt_stream_start(s) < 0)
Christopher Fauletd7c91962015-04-30 11:48:27 +0200522 goto out_fail_accept;
523
Olivier Houcharda254a372019-04-05 15:30:12 +0200524 s->si[1].l7_buffer = BUF_NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200525 /* finish initialization of the accepted file descriptor */
Olivier Houchard53216e72018-10-10 15:46:36 +0200526 if (appctx)
Willy Tarreau0cd3bd62018-11-06 18:46:37 +0100527 si_want_get(&s->si[0]);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200528
Willy Tarreaufb9f5842015-04-05 18:19:23 +0200529 if (sess->fe->accept && sess->fe->accept(s) < 0)
Willy Tarreauc5a7ff42015-04-05 11:52:08 +0200530 goto out_fail_accept;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200531
532 /* it is important not to call the wakeup function directly but to
533 * pass through task_wakeup(), because this one knows how to apply
Emeric Brun5f77fef2017-05-29 15:26:51 +0200534 * priorities to tasks. Using multi thread we must be sure that
535 * stream is fully initialized before calling task_wakeup. So
536 * the caller must handle the task_wakeup
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200537 */
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100538 DBG_TRACE_LEAVE(STRM_EV_STRM_NEW, s);
Willy Tarreau02d86382015-04-05 12:00:52 +0200539 return s;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200540
541 /* Error unrolling */
Willy Tarreauc5a7ff42015-04-05 11:52:08 +0200542 out_fail_accept:
Christopher Faulet92d36382015-11-05 13:35:03 +0100543 flt_stream_release(s, 0);
Olivier Houchard3f795f72019-04-17 22:51:06 +0200544 task_destroy(t);
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200545 tasklet_free(s->si[1].wait_event.tasklet);
Willy Tarreaue5f229e2018-10-15 11:08:55 +0200546 LIST_DEL(&s->list);
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200547out_fail_alloc_si1:
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200548 tasklet_free(s->si[0].wait_event.tasklet);
Willy Tarreau87787ac2017-08-28 16:22:54 +0200549 out_fail_alloc:
Willy Tarreaubafbe012017-11-24 17:34:44 +0100550 pool_free(pool_head_stream, s);
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100551 DBG_TRACE_DEVEL("leaving on error", STRM_EV_STRM_NEW|STRM_EV_STRM_ERR);
Willy Tarreau02d86382015-04-05 12:00:52 +0200552 return NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200553}
554
Willy Tarreaubaaee002006-06-26 02:48:02 +0200555/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200556 * frees the context associated to a stream. It must have been removed first.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200557 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200558static void stream_free(struct stream *s)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200559{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200560 struct session *sess = strm_sess(s);
561 struct proxy *fe = sess->fe;
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100562 struct bref *bref, *back;
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200563 struct conn_stream *cli_cs = objt_cs(s->si[0].end);
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100564 int must_free_sess;
Willy Tarreaua4cda672010-06-06 18:28:49 +0200565 int i;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100566
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100567 DBG_TRACE_POINT(STRM_EV_STRM_FREE, s);
568
Willy Tarreau0ad46fa2019-05-17 14:20:05 +0200569 /* detach the stream from its own task before even releasing it so
570 * that walking over a task list never exhibits a dying stream.
571 */
572 s->task->context = NULL;
573 __ha_barrier_store();
574
Willy Tarreaud0ad4a82018-07-25 11:13:53 +0200575 pendconn_free(s);
Willy Tarreau922a8062008-12-04 09:33:58 +0100576
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100577 if (objt_server(s->target)) { /* there may be requests left pending in queue */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200578 if (s->flags & SF_CURR_SESS) {
579 s->flags &= ~SF_CURR_SESS;
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100580 _HA_ATOMIC_SUB(&__objt_server(s->target)->cur_sess, 1);
Willy Tarreau1e62de62008-11-11 20:20:02 +0100581 }
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100582 if (may_dequeue_tasks(objt_server(s->target), s->be))
583 process_srv_queue(objt_server(s->target));
Willy Tarreau1e62de62008-11-11 20:20:02 +0100584 }
Willy Tarreau922a8062008-12-04 09:33:58 +0100585
Willy Tarreau7c669d72008-06-20 15:04:11 +0200586 if (unlikely(s->srv_conn)) {
Willy Tarreau87b09662015-04-03 00:22:06 +0200587 /* the stream still has a reserved slot on a server, but
Willy Tarreau7c669d72008-06-20 15:04:11 +0200588 * it should normally be only the same as the one above,
589 * so this should not happen in fact.
590 */
591 sess_change_server(s, NULL);
592 }
593
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100594 if (s->req.pipe)
595 put_pipe(s->req.pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100596
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100597 if (s->res.pipe)
598 put_pipe(s->res.pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100599
Willy Tarreaubf883e02014-11-25 21:10:35 +0100600 /* We may still be present in the buffer wait queue */
Willy Tarreau21046592020-02-26 10:39:36 +0100601 if (MT_LIST_ADDED(&s->buffer_wait.list))
602 MT_LIST_DEL(&s->buffer_wait.list);
603
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
Tim Duesterhusa17e6622020-03-05 20:19:02 +0100610 pool_free(pool_head_uniqueid, s->unique_id.ptr);
611 s->unique_id = IST_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{
Willy Tarreau21046592020-02-26 10:39:36 +0100730 if (MT_LIST_ADDED(&s->buffer_wait.list))
731 MT_LIST_DEL(&s->buffer_wait.list);
Willy Tarreau656859d2014-11-25 19:46:36 +0100732
Willy Tarreaubc39a5d2015-04-20 15:52:18 +0200733 if (b_alloc_margin(&s->res.buf, 0))
Willy Tarreau656859d2014-11-25 19:46:36 +0100734 return 1;
735
Willy Tarreau21046592020-02-26 10:39:36 +0100736 MT_LIST_ADDQ(&buffer_wq, &s->buffer_wait.list);
Willy Tarreau656859d2014-11-25 19:46:36 +0100737 return 0;
738}
739
740/* releases unused buffers after processing. Typically used at the end of the
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100741 * update() functions. It will try to wake up as many tasks/applets as the
742 * number of buffers that it releases. In practice, most often streams are
743 * blocked on a single buffer, so it makes sense to try to wake two up when two
744 * buffers are released at once.
Willy Tarreau656859d2014-11-25 19:46:36 +0100745 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200746void stream_release_buffers(struct stream *s)
Willy Tarreau656859d2014-11-25 19:46:36 +0100747{
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100748 int offer = 0;
Willy Tarreau656859d2014-11-25 19:46:36 +0100749
Willy Tarreau0c7ed5d2018-07-10 09:53:31 +0200750 if (c_size(&s->req) && c_empty(&s->req)) {
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100751 offer = 1;
752 b_free(&s->req.buf);
753 }
Willy Tarreau0c7ed5d2018-07-10 09:53:31 +0200754 if (c_size(&s->res) && c_empty(&s->res)) {
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100755 offer = 1;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100756 b_free(&s->res.buf);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100757 }
Willy Tarreau656859d2014-11-25 19:46:36 +0100758
Willy Tarreaubf883e02014-11-25 21:10:35 +0100759 /* if we're certain to have at least 1 buffer available, and there is
760 * someone waiting, we can wake up a waiter and offer them.
761 */
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100762 if (offer)
Olivier Houchard673867c2018-05-25 16:58:52 +0200763 offer_buffers(s, tasks_run_queue);
Willy Tarreau656859d2014-11-25 19:46:36 +0100764}
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200765
Willy Tarreau87b09662015-04-03 00:22:06 +0200766void stream_process_counters(struct stream *s)
Willy Tarreau30e71012007-11-26 20:15:35 +0100767{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200768 struct session *sess = s->sess;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100769 unsigned long long bytes;
Emeric Brun57056f02015-06-15 18:29:57 +0200770 void *ptr1,*ptr2;
Emeric Brun819fc6f2017-06-13 19:37:32 +0200771 struct stksess *ts;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100772 int i;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100773
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100774 bytes = s->req.total - s->logs.bytes_in;
775 s->logs.bytes_in = s->req.total;
776 if (bytes) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100777 _HA_ATOMIC_ADD(&sess->fe->fe_counters.bytes_in, bytes);
778 _HA_ATOMIC_ADD(&s->be->be_counters.bytes_in, bytes);
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100779
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100780 if (objt_server(s->target))
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100781 _HA_ATOMIC_ADD(&objt_server(s->target)->counters.bytes_in, bytes);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200782
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200783 if (sess->listener && sess->listener->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100784 _HA_ATOMIC_ADD(&sess->listener->counters->bytes_in, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200785
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100786 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200787 struct stkctr *stkctr = &s->stkctr[i];
788
Emeric Brun819fc6f2017-06-13 19:37:32 +0200789 ts = stkctr_entry(stkctr);
790 if (!ts) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200791 stkctr = &sess->stkctr[i];
Emeric Brun819fc6f2017-06-13 19:37:32 +0200792 ts = stkctr_entry(stkctr);
793 if (!ts)
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200794 continue;
795 }
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200796
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100797 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun819fc6f2017-06-13 19:37:32 +0200798 ptr1 = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_BYTES_IN_CNT);
Emeric Brun57056f02015-06-15 18:29:57 +0200799 if (ptr1)
800 stktable_data_cast(ptr1, bytes_in_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200801
Emeric Brun819fc6f2017-06-13 19:37:32 +0200802 ptr2 = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_BYTES_IN_RATE);
Emeric Brun57056f02015-06-15 18:29:57 +0200803 if (ptr2)
804 update_freq_ctr_period(&stktable_data_cast(ptr2, bytes_in_rate),
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200805 stkctr->table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u, bytes);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100806 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun57056f02015-06-15 18:29:57 +0200807
808 /* If data was modified, we need to touch to re-schedule sync */
809 if (ptr1 || ptr2)
Emeric Brun819fc6f2017-06-13 19:37:32 +0200810 stktable_touch_local(stkctr->table, ts, 0);
Willy Tarreau30e71012007-11-26 20:15:35 +0100811 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100812 }
813
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100814 bytes = s->res.total - s->logs.bytes_out;
815 s->logs.bytes_out = s->res.total;
816 if (bytes) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100817 _HA_ATOMIC_ADD(&sess->fe->fe_counters.bytes_out, bytes);
818 _HA_ATOMIC_ADD(&s->be->be_counters.bytes_out, bytes);
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100819
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100820 if (objt_server(s->target))
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100821 _HA_ATOMIC_ADD(&objt_server(s->target)->counters.bytes_out, bytes);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200822
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200823 if (sess->listener && sess->listener->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100824 _HA_ATOMIC_ADD(&sess->listener->counters->bytes_out, bytes);
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200825
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100826 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200827 struct stkctr *stkctr = &s->stkctr[i];
828
Emeric Brun819fc6f2017-06-13 19:37:32 +0200829 ts = stkctr_entry(stkctr);
830 if (!ts) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200831 stkctr = &sess->stkctr[i];
Emeric Brun819fc6f2017-06-13 19:37:32 +0200832 ts = stkctr_entry(stkctr);
833 if (!ts)
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200834 continue;
835 }
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200836
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100837 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun819fc6f2017-06-13 19:37:32 +0200838 ptr1 = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_BYTES_OUT_CNT);
Emeric Brun57056f02015-06-15 18:29:57 +0200839 if (ptr1)
840 stktable_data_cast(ptr1, bytes_out_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200841
Emeric Brun819fc6f2017-06-13 19:37:32 +0200842 ptr2 = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_BYTES_OUT_RATE);
Emeric Brun57056f02015-06-15 18:29:57 +0200843 if (ptr2)
844 update_freq_ctr_period(&stktable_data_cast(ptr2, bytes_out_rate),
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200845 stkctr->table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u, bytes);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100846 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun57056f02015-06-15 18:29:57 +0200847
848 /* If data was modified, we need to touch to re-schedule sync */
849 if (ptr1 || ptr2)
Emeric Brun819fc6f2017-06-13 19:37:32 +0200850 stktable_touch_local(stkctr->table, stkctr_entry(stkctr), 0);
Willy Tarreau30e71012007-11-26 20:15:35 +0100851 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100852 }
853}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200854
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100855/*
856 * This function handles the transition between the SI_ST_CON state and the
Willy Tarreau85e7d002010-05-31 11:57:51 +0200857 * SI_ST_EST state. It must only be called after switching from SI_ST_CON (or
Willy Tarreau4f283fa2019-06-05 14:34:03 +0200858 * 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 +0200859 * Note that it will switch the interface to SI_ST_DIS if we already have
860 * the CF_SHUTR flag, it means we were able to forward the request, and
861 * receive the response, before process_stream() had the opportunity to
862 * make the switch from SI_ST_CON to SI_ST_EST. When that happens, we want
Willy Tarreau3a9312a2020-01-09 18:43:15 +0100863 * to go through back_establish() anyway, to make sure the analysers run.
Willy Tarreaud66ed882019-06-05 18:02:04 +0200864 * Timeouts are cleared. Error are reported on the channel so that analysers
865 * can handle them.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100866 */
Willy Tarreau3a9312a2020-01-09 18:43:15 +0100867static void back_establish(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100868{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100869 struct stream_interface *si = &s->si[1];
Willy Tarreaud66ed882019-06-05 18:02:04 +0200870 struct conn_stream *srv_cs = objt_cs(si->end);
871 struct connection *conn = srv_cs ? srv_cs->conn : objt_conn(si->end);
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100872 struct channel *req = &s->req;
873 struct channel *rep = &s->res;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100874
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100875 DBG_TRACE_ENTER(STRM_EV_STRM_PROC|STRM_EV_SI_ST, s);
Willy Tarreaud66ed882019-06-05 18:02:04 +0200876 /* First, centralize the timers information, and clear any irrelevant
877 * timeout.
878 */
Willy Tarreau0e37f1c2013-12-31 23:06:46 +0100879 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreaud66ed882019-06-05 18:02:04 +0200880 si->exp = TICK_ETERNITY;
881 si->flags &= ~SI_FL_EXP;
882
883 /* errors faced after sending data need to be reported */
884 if (si->flags & SI_FL_ERR && req->flags & CF_WROTE_DATA) {
885 /* Don't add CF_WRITE_ERROR if we're here because
886 * early data were rejected by the server, or
887 * http_wait_for_response() will never be called
888 * to send a 425.
889 */
890 if (conn && conn->err_code != CO_ER_SSL_EARLY_FAILED)
891 req->flags |= CF_WRITE_ERROR;
892 rep->flags |= CF_READ_ERROR;
893 si->err_type = SI_ET_DATA_ERR;
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100894 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 +0200895 }
896
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100897 if (objt_server(s->target))
898 health_adjust(objt_server(s->target), HANA_STATUS_L4_OK);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100899
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100900 if (s->be->mode == PR_MODE_TCP) { /* let's allow immediate data connection in this case */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100901 /* if the user wants to log as soon as possible, without counting
902 * bytes from the server, then this is the right moment. */
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200903 if (!LIST_ISEMPTY(&strm_fe(s)->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau66425e32018-07-25 06:55:12 +0200904 /* note: no pend_pos here, session is established */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100905 s->logs.t_close = s->logs.t_connect; /* to get a valid end date */
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100906 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100907 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100908 }
909 else {
Willy Tarreaud81ca042013-12-31 22:33:13 +0100910 rep->flags |= CF_READ_DONTWAIT; /* a single read is enough to get response headers */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100911 }
912
Willy Tarreau0007d0a2018-12-11 18:01:38 +0100913 rep->analysers |= strm_fe(s)->fe_rsp_ana | s->be->be_rsp_ana;
Christopher Faulet309c6412015-12-02 09:57:32 +0100914
Willy Tarreau0007d0a2018-12-11 18:01:38 +0100915 /* Be sure to filter response headers if the backend is an HTTP proxy
916 * and if there are filters attached to the stream. */
917 if (s->be->mode == PR_MODE_HTTP && HAS_FILTERS(s))
918 rep->analysers |= AN_RES_FLT_HTTP_HDRS;
Christopher Faulet309c6412015-12-02 09:57:32 +0100919
Willy Tarreau8bb2ffb2018-11-14 17:54:13 +0100920 si_rx_endp_more(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200921 rep->flags |= CF_READ_ATTACHED; /* producer is now attached */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200922 if (objt_cs(si->end)) {
Willy Tarreaud04e8582010-05-31 12:31:35 +0200923 /* real connections have timeouts */
924 req->wto = s->be->timeout.server;
925 rep->rto = s->be->timeout.server;
Olivier Houchard47e9a1a2018-11-07 17:55:19 +0100926 /* The connection is now established, try to read data from the
927 * underlying layer, and subscribe to recv events. We use a
928 * delayed recv here to give a chance to the data to flow back
929 * by the time we process other tasks.
930 */
931 si_chk_rcv(si);
Willy Tarreaud04e8582010-05-31 12:31:35 +0200932 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100933 req->wex = TICK_ETERNITY;
Olivier Houchard78595262019-07-26 14:54:34 +0200934 /* If we managed to get the whole response, and we don't have anything
935 * left to send, or can't, switch to SI_ST_DIS now. */
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100936 if (rep->flags & (CF_SHUTR | CF_SHUTW)) {
Olivier Houchardaacc4052019-05-21 17:43:50 +0200937 si->state = SI_ST_DIS;
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100938 DBG_TRACE_STATE("response channel shutdwn for read/write", STRM_EV_STRM_PROC|STRM_EV_SI_ST|STRM_EV_STRM_ERR, s);
939 }
940
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100941 DBG_TRACE_LEAVE(STRM_EV_STRM_PROC|STRM_EV_SI_ST, s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100942}
943
Willy Tarreau87b09662015-04-03 00:22:06 +0200944/* Set correct stream termination flags in case no analyser has done it. It
Simon Hormandec5be42011-06-08 09:19:07 +0900945 * also counts a failed request if the server state has not reached the request
946 * stage.
947 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200948static void sess_set_term_flags(struct stream *s)
Simon Hormandec5be42011-06-08 09:19:07 +0900949{
Willy Tarreaue7dff022015-04-03 01:14:29 +0200950 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +0200951 if (s->si[1].state == SI_ST_INI) {
952 /* anything before REQ in fact */
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100953 _HA_ATOMIC_ADD(&strm_fe(s)->fe_counters.failed_req, 1);
Willy Tarreau2c1068c2015-09-23 12:21:21 +0200954 if (strm_li(s) && strm_li(s)->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100955 _HA_ATOMIC_ADD(&strm_li(s)->counters->failed_req, 1);
Simon Hormandec5be42011-06-08 09:19:07 +0900956
Willy Tarreaue7dff022015-04-03 01:14:29 +0200957 s->flags |= SF_FINST_R;
Simon Hormandec5be42011-06-08 09:19:07 +0900958 }
959 else if (s->si[1].state == SI_ST_QUE)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200960 s->flags |= SF_FINST_Q;
Willy Tarreau4f283fa2019-06-05 14:34:03 +0200961 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 +0200962 s->flags |= SF_FINST_C;
Simon Hormandec5be42011-06-08 09:19:07 +0900963 else if (s->si[1].state == SI_ST_EST || s->si[1].prev_state == SI_ST_EST)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200964 s->flags |= SF_FINST_D;
Simon Hormandec5be42011-06-08 09:19:07 +0900965 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200966 s->flags |= SF_FINST_L;
Simon Hormandec5be42011-06-08 09:19:07 +0900967 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100968}
969
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200970/* This function parses the use-service action ruleset. It executes
971 * the associated ACL and set an applet as a stream or txn final node.
972 * it returns ACT_RET_ERR if an error occurs, the proxy left in
973 * consistent state. It returns ACT_RET_STOP in succes case because
974 * use-service must be a terminal action. Returns ACT_RET_YIELD
975 * if the initialisation function require more data.
976 */
977enum act_return process_use_service(struct act_rule *rule, struct proxy *px,
978 struct session *sess, struct stream *s, int flags)
979
980{
981 struct appctx *appctx;
982
983 /* Initialises the applet if it is required. */
Christopher Faulet105ba6c2019-12-18 14:41:51 +0100984 if (flags & ACT_OPT_FIRST) {
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200985 /* Register applet. this function schedules the applet. */
986 s->target = &rule->applet.obj_type;
Willy Tarreau14bfe9a2018-12-19 15:19:27 +0100987 if (unlikely(!si_register_handler(&s->si[1], objt_applet(s->target))))
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200988 return ACT_RET_ERR;
989
990 /* Initialise the context. */
991 appctx = si_appctx(&s->si[1]);
992 memset(&appctx->ctx, 0, sizeof(appctx->ctx));
993 appctx->rule = rule;
994 }
995 else
996 appctx = si_appctx(&s->si[1]);
997
998 /* Stops the applet sheduling, in case of the init function miss
999 * some data.
1000 */
Willy Tarreau0cd3bd62018-11-06 18:46:37 +01001001 si_stop_get(&s->si[1]);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001002
1003 /* Call initialisation. */
1004 if (rule->applet.init)
1005 switch (rule->applet.init(appctx, px, s)) {
1006 case 0: return ACT_RET_ERR;
1007 case 1: break;
1008 default: return ACT_RET_YIELD;
1009 }
1010
Christopher Faulet2571bc62019-03-01 11:44:26 +01001011 if (rule->from != ACT_F_HTTP_REQ) {
1012 if (sess->fe == s->be) /* report it if the request was intercepted by the frontend */
1013 _HA_ATOMIC_ADD(&sess->fe->fe_counters.intercepted_req, 1);
1014
1015 /* The flag SF_ASSIGNED prevent from server assignment. */
1016 s->flags |= SF_ASSIGNED;
1017 }
1018
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001019 /* Now we can schedule the applet. */
Willy Tarreau0cd3bd62018-11-06 18:46:37 +01001020 si_cant_get(&s->si[1]);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001021 appctx_wakeup(appctx);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001022 return ACT_RET_STOP;
1023}
1024
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001025/* This stream analyser checks the switching rules and changes the backend
Willy Tarreau4de91492010-01-22 19:10:05 +01001026 * if appropriate. The default_backend rule is also considered, then the
1027 * target backend's forced persistence rules are also evaluated last if any.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001028 * It returns 1 if the processing can continue on next analysers, or zero if it
1029 * either needs more data or wants to immediately abort the request.
1030 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001031static int process_switching_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001032{
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001033 struct persist_rule *prst_rule;
Willy Tarreau192252e2015-04-04 01:47:55 +02001034 struct session *sess = s->sess;
1035 struct proxy *fe = sess->fe;
Willy Tarreau4de91492010-01-22 19:10:05 +01001036
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001037 req->analysers &= ~an_bit;
1038 req->analyse_exp = TICK_ETERNITY;
1039
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001040 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001041
1042 /* now check whether we have some switching rules for this request */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001043 if (!(s->flags & SF_BE_ASSIGNED)) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001044 struct switching_rule *rule;
1045
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001046 list_for_each_entry(rule, &fe->switching_rules, list) {
Willy Tarreauf51658d2014-04-23 01:21:56 +02001047 int ret = 1;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001048
Willy Tarreauf51658d2014-04-23 01:21:56 +02001049 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001050 ret = acl_exec_cond(rule->cond, fe, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001051 ret = acl_pass(ret);
1052 if (rule->cond->pol == ACL_COND_UNLESS)
1053 ret = !ret;
1054 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001055
1056 if (ret) {
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001057 /* If the backend name is dynamic, try to resolve the name.
1058 * If we can't resolve the name, or if any error occurs, break
1059 * the loop and fallback to the default backend.
1060 */
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001061 struct proxy *backend = NULL;
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001062
1063 if (rule->dynamic) {
Willy Tarreau83061a82018-07-13 11:56:34 +02001064 struct buffer *tmp;
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001065
1066 tmp = alloc_trash_chunk();
1067 if (!tmp)
1068 goto sw_failed;
1069
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001070 if (build_logline(s, tmp->area, tmp->size, &rule->be.expr))
1071 backend = proxy_be_by_name(tmp->area);
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001072
1073 free_trash_chunk(tmp);
1074 tmp = NULL;
1075
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001076 if (!backend)
1077 break;
1078 }
1079 else
1080 backend = rule->be.backend;
1081
Willy Tarreau87b09662015-04-03 00:22:06 +02001082 if (!stream_set_backend(s, backend))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001083 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001084 break;
1085 }
1086 }
1087
1088 /* To ensure correct connection accounting on the backend, we
1089 * have to assign one if it was not set (eg: a listen). This
1090 * measure also takes care of correctly setting the default
1091 * backend if any.
1092 */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001093 if (!(s->flags & SF_BE_ASSIGNED))
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001094 if (!stream_set_backend(s, fe->defbe.be ? fe->defbe.be : s->be))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001095 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001096 }
1097
Willy Tarreaufb356202010-08-03 14:02:05 +02001098 /* 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 +02001099 if (fe == s->be) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001100 s->req.analysers &= ~AN_REQ_INSPECT_BE;
1101 s->req.analysers &= ~AN_REQ_HTTP_PROCESS_BE;
Christopher Faulet0184ea72017-01-05 14:06:34 +01001102 s->req.analysers &= ~AN_REQ_FLT_START_BE;
Willy Tarreaufb356202010-08-03 14:02:05 +02001103 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001104
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001105 /* 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 +02001106 * persistence rule, and report that in the stream.
Willy Tarreau4de91492010-01-22 19:10:05 +01001107 */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001108 list_for_each_entry(prst_rule, &s->be->persist_rules, list) {
Willy Tarreau4de91492010-01-22 19:10:05 +01001109 int ret = 1;
1110
1111 if (prst_rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001112 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 +01001113 ret = acl_pass(ret);
1114 if (prst_rule->cond->pol == ACL_COND_UNLESS)
1115 ret = !ret;
1116 }
1117
1118 if (ret) {
1119 /* no rule, or the rule matches */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001120 if (prst_rule->type == PERSIST_TYPE_FORCE) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001121 s->flags |= SF_FORCE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001122 } else {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001123 s->flags |= SF_IGNORE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001124 }
Willy Tarreau4de91492010-01-22 19:10:05 +01001125 break;
1126 }
1127 }
1128
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001129 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001130 return 1;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001131
1132 sw_failed:
1133 /* immediately abort this request in case of allocation failure */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001134 channel_abort(&s->req);
1135 channel_abort(&s->res);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001136
Willy Tarreaue7dff022015-04-03 01:14:29 +02001137 if (!(s->flags & SF_ERR_MASK))
1138 s->flags |= SF_ERR_RESOURCE;
1139 if (!(s->flags & SF_FINST_MASK))
1140 s->flags |= SF_FINST_R;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001141
Willy Tarreaueee5b512015-04-03 23:46:31 +02001142 if (s->txn)
1143 s->txn->status = 500;
Christopher Faulet0184ea72017-01-05 14:06:34 +01001144 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001145 s->req.analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001146 DBG_TRACE_DEVEL("leaving on error", STRM_EV_STRM_ANA|STRM_EV_STRM_ERR, s);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001147 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001148}
1149
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001150/* This stream analyser works on a request. It applies all use-server rules on
1151 * it then returns 1. The data must already be present in the buffer otherwise
1152 * they won't match. It always returns 1.
1153 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001154static int process_server_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001155{
1156 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001157 struct session *sess = s->sess;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001158 struct server_rule *rule;
1159
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001160 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001161
Willy Tarreaue7dff022015-04-03 01:14:29 +02001162 if (!(s->flags & SF_ASSIGNED)) {
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001163 list_for_each_entry(rule, &px->server_rules, list) {
1164 int ret;
1165
Willy Tarreau192252e2015-04-04 01:47:55 +02001166 ret = acl_exec_cond(rule->cond, s->be, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001167 ret = acl_pass(ret);
1168 if (rule->cond->pol == ACL_COND_UNLESS)
1169 ret = !ret;
1170
1171 if (ret) {
1172 struct server *srv = rule->srv.ptr;
1173
Emeric Brun52a91d32017-08-31 14:41:55 +02001174 if ((srv->cur_state != SRV_ST_STOPPED) ||
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001175 (px->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +02001176 (s->flags & SF_FORCE_PRST)) {
1177 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001178 s->target = &srv->obj_type;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001179 break;
1180 }
1181 /* if the server is not UP, let's go on with next rules
1182 * just in case another one is suited.
1183 */
1184 }
1185 }
1186 }
1187
1188 req->analysers &= ~an_bit;
1189 req->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001190 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001191 return 1;
1192}
1193
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001194static inline void sticking_rule_find_target(struct stream *s,
1195 struct stktable *t, struct stksess *ts)
1196{
1197 struct proxy *px = s->be;
1198 struct eb32_node *node;
1199 struct dict_entry *de;
1200 void *ptr;
1201 struct server *srv;
1202
1203 /* Look for the server name previously stored in <t> stick-table */
1204 HA_RWLOCK_RDLOCK(STK_SESS_LOCK, &ts->lock);
1205 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_NAME);
1206 de = stktable_data_cast(ptr, server_name);
1207 HA_RWLOCK_RDUNLOCK(STK_SESS_LOCK, &ts->lock);
1208
1209 if (de) {
1210 struct ebpt_node *name;
1211
1212 name = ebis_lookup(&px->conf.used_server_name, de->value.key);
1213 if (name) {
1214 srv = container_of(name, struct server, conf.name);
1215 goto found;
1216 }
1217 }
1218
1219 /* Look for the server ID */
1220 HA_RWLOCK_RDLOCK(STK_SESS_LOCK, &ts->lock);
1221 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_ID);
1222 node = eb32_lookup(&px->conf.used_server_id, stktable_data_cast(ptr, server_id));
1223 HA_RWLOCK_RDUNLOCK(STK_SESS_LOCK, &ts->lock);
1224
1225 if (!node)
1226 return;
1227
1228 srv = container_of(node, struct server, conf.id);
1229 found:
1230 if ((srv->cur_state != SRV_ST_STOPPED) ||
1231 (px->options & PR_O_PERSIST) || (s->flags & SF_FORCE_PRST)) {
1232 s->flags |= SF_DIRECT | SF_ASSIGNED;
1233 s->target = &srv->obj_type;
1234 }
1235}
1236
Emeric Brun1d33b292010-01-04 15:47:17 +01001237/* This stream analyser works on a request. It applies all sticking rules on
1238 * it then returns 1. The data must already be present in the buffer otherwise
1239 * they won't match. It always returns 1.
1240 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001241static int process_sticking_rules(struct stream *s, struct channel *req, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001242{
1243 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001244 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001245 struct sticking_rule *rule;
1246
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001247 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001248
1249 list_for_each_entry(rule, &px->sticking_rules, list) {
1250 int ret = 1 ;
1251 int i;
1252
Willy Tarreau9667a802013-12-09 12:52:13 +01001253 /* Only the first stick store-request of each table is applied
1254 * and other ones are ignored. The purpose is to allow complex
1255 * configurations which look for multiple entries by decreasing
1256 * order of precision and to stop at the first which matches.
1257 * An example could be a store of the IP address from an HTTP
1258 * header first, then from the source if not found.
1259 */
Jerome Magninbee00ad2020-01-16 17:37:21 +01001260 if (rule->flags & STK_IS_STORE) {
1261 for (i = 0; i < s->store_count; i++) {
1262 if (rule->table.t == s->store[i].table)
1263 break;
1264 }
Emeric Brun1d33b292010-01-04 15:47:17 +01001265
Jerome Magninbee00ad2020-01-16 17:37:21 +01001266 if (i != s->store_count)
1267 continue;
1268 }
Emeric Brun1d33b292010-01-04 15:47:17 +01001269
1270 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001271 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001272 ret = acl_pass(ret);
1273 if (rule->cond->pol == ACL_COND_UNLESS)
1274 ret = !ret;
1275 }
1276
1277 if (ret) {
1278 struct stktable_key *key;
1279
Willy Tarreau192252e2015-04-04 01:47:55 +02001280 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 +01001281 if (!key)
1282 continue;
1283
1284 if (rule->flags & STK_IS_MATCH) {
1285 struct stksess *ts;
1286
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001287 if ((ts = stktable_lookup_key(rule->table.t, key)) != NULL) {
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001288 if (!(s->flags & SF_ASSIGNED))
1289 sticking_rule_find_target(s, rule->table.t, ts);
Emeric Brun819fc6f2017-06-13 19:37:32 +02001290 stktable_touch_local(rule->table.t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001291 }
1292 }
1293 if (rule->flags & STK_IS_STORE) {
1294 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
1295 struct stksess *ts;
1296
1297 ts = stksess_new(rule->table.t, key);
1298 if (ts) {
1299 s->store[s->store_count].table = rule->table.t;
1300 s->store[s->store_count++].ts = ts;
1301 }
1302 }
1303 }
1304 }
1305 }
1306
1307 req->analysers &= ~an_bit;
1308 req->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001309 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001310 return 1;
1311}
1312
1313/* This stream analyser works on a response. It applies all store rules on it
1314 * then returns 1. The data must already be present in the buffer otherwise
1315 * they won't match. It always returns 1.
1316 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001317static int process_store_rules(struct stream *s, struct channel *rep, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001318{
1319 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001320 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001321 struct sticking_rule *rule;
1322 int i;
Willy Tarreau9667a802013-12-09 12:52:13 +01001323 int nbreq = s->store_count;
Emeric Brun1d33b292010-01-04 15:47:17 +01001324
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001325 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001326
1327 list_for_each_entry(rule, &px->storersp_rules, list) {
1328 int ret = 1 ;
Emeric Brun1d33b292010-01-04 15:47:17 +01001329
Willy Tarreau9667a802013-12-09 12:52:13 +01001330 /* Only the first stick store-response of each table is applied
1331 * and other ones are ignored. The purpose is to allow complex
1332 * configurations which look for multiple entries by decreasing
1333 * order of precision and to stop at the first which matches.
1334 * An example could be a store of a set-cookie value, with a
1335 * fallback to a parameter found in a 302 redirect.
1336 *
1337 * The store-response rules are not allowed to override the
1338 * store-request rules for the same table, but they may coexist.
1339 * Thus we can have up to one store-request entry and one store-
1340 * response entry for the same table at any time.
1341 */
1342 for (i = nbreq; i < s->store_count; i++) {
1343 if (rule->table.t == s->store[i].table)
1344 break;
1345 }
1346
1347 /* skip existing entries for this table */
1348 if (i < s->store_count)
1349 continue;
1350
Emeric Brun1d33b292010-01-04 15:47:17 +01001351 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001352 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_RES|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001353 ret = acl_pass(ret);
1354 if (rule->cond->pol == ACL_COND_UNLESS)
1355 ret = !ret;
1356 }
1357
1358 if (ret) {
1359 struct stktable_key *key;
1360
Willy Tarreau192252e2015-04-04 01:47:55 +02001361 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 +01001362 if (!key)
1363 continue;
1364
Willy Tarreau37e340c2013-12-06 23:05:21 +01001365 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001366 struct stksess *ts;
1367
1368 ts = stksess_new(rule->table.t, key);
1369 if (ts) {
1370 s->store[s->store_count].table = rule->table.t;
Emeric Brun1d33b292010-01-04 15:47:17 +01001371 s->store[s->store_count++].ts = ts;
1372 }
1373 }
1374 }
1375 }
1376
1377 /* process store request and store response */
1378 for (i = 0; i < s->store_count; i++) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001379 struct stksess *ts;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001380 void *ptr;
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001381 struct dict_entry *de;
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001382
Willy Tarreauc93cd162014-05-13 15:54:22 +02001383 if (objt_server(s->target) && objt_server(s->target)->flags & SRV_F_NON_STICK) {
Simon Hormanfa461682011-06-25 09:39:49 +09001384 stksess_free(s->store[i].table, s->store[i].ts);
1385 s->store[i].ts = NULL;
1386 continue;
1387 }
1388
Emeric Brun819fc6f2017-06-13 19:37:32 +02001389 ts = stktable_set_entry(s->store[i].table, s->store[i].ts);
1390 if (ts != s->store[i].ts) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001391 /* the entry already existed, we can free ours */
Emeric Brun1d33b292010-01-04 15:47:17 +01001392 stksess_free(s->store[i].table, s->store[i].ts);
Emeric Brun1d33b292010-01-04 15:47:17 +01001393 }
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001394 s->store[i].ts = NULL;
Emeric Brun819fc6f2017-06-13 19:37:32 +02001395
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001396 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Willy Tarreaub8d42d02018-09-20 11:11:15 +02001397 ptr = __stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_ID);
1398 stktable_data_cast(ptr, server_id) = __objt_server(s->target)->puid;
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001399 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001400
1401 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
1402 de = dict_insert(&server_name_dict, __objt_server(s->target)->id);
1403 if (de) {
1404 ptr = __stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_NAME);
1405 stktable_data_cast(ptr, server_name) = de;
1406 }
1407 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
1408
Emeric Brun819fc6f2017-06-13 19:37:32 +02001409 stktable_touch_local(s->store[i].table, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001410 }
Willy Tarreau2a164ee2010-06-18 09:57:45 +02001411 s->store_count = 0; /* everything is stored */
Emeric Brun1d33b292010-01-04 15:47:17 +01001412
1413 rep->analysers &= ~an_bit;
1414 rep->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001415
1416 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001417 return 1;
1418}
1419
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001420/* This macro is very specific to the function below. See the comments in
Willy Tarreau87b09662015-04-03 00:22:06 +02001421 * process_stream() below to understand the logic and the tests.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001422 */
1423#define UPDATE_ANALYSERS(real, list, back, flag) { \
1424 list = (((list) & ~(flag)) | ~(back)) & (real); \
1425 back = real; \
1426 if (!(list)) \
1427 break; \
1428 if (((list) ^ ((list) & ((list) - 1))) < (flag)) \
1429 continue; \
1430}
1431
Christopher Fauleta9215b72016-05-11 17:06:28 +02001432/* These 2 following macros call an analayzer for the specified channel if the
1433 * right flag is set. The first one is used for "filterable" analyzers. If a
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001434 * stream has some registered filters, pre and post analyaze callbacks are
Christopher Faulet0184ea72017-01-05 14:06:34 +01001435 * called. The second are used for other analyzers (AN_REQ/RES_FLT_* and
Christopher Fauleta9215b72016-05-11 17:06:28 +02001436 * AN_REQ/RES_HTTP_XFER_BODY) */
1437#define FLT_ANALYZE(strm, chn, fun, list, back, flag, ...) \
1438 { \
1439 if ((list) & (flag)) { \
1440 if (HAS_FILTERS(strm)) { \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001441 if (!flt_pre_analyze((strm), (chn), (flag))) \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001442 break; \
1443 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1444 break; \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001445 if (!flt_post_analyze((strm), (chn), (flag))) \
1446 break; \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001447 } \
1448 else { \
1449 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1450 break; \
1451 } \
1452 UPDATE_ANALYSERS((chn)->analysers, (list), \
1453 (back), (flag)); \
1454 } \
1455 }
1456
1457#define ANALYZE(strm, chn, fun, list, back, flag, ...) \
1458 { \
1459 if ((list) & (flag)) { \
1460 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1461 break; \
1462 UPDATE_ANALYSERS((chn)->analysers, (list), \
1463 (back), (flag)); \
1464 } \
1465 }
1466
Willy Tarreau87b09662015-04-03 00:22:06 +02001467/* Processes the client, server, request and response jobs of a stream task,
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001468 * then puts it back to the wait queue in a clean state, or cleans up its
1469 * resources if it must be deleted. Returns in <next> the date the task wants
1470 * to be woken up, or TICK_ETERNITY. In order not to call all functions for
1471 * nothing too many times, the request and response buffers flags are monitored
1472 * and each function is called only if at least another function has changed at
1473 * least one flag it is interested in.
1474 */
Olivier Houchard9f6af332018-05-25 14:04:04 +02001475struct task *process_stream(struct task *t, void *context, unsigned short state)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001476{
Willy Tarreau827aee92011-03-10 16:55:02 +01001477 struct server *srv;
Olivier Houchard9f6af332018-05-25 14:04:04 +02001478 struct stream *s = context;
Willy Tarreaufb0afa72015-04-03 14:46:27 +02001479 struct session *sess = s->sess;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001480 unsigned int rqf_last, rpf_last;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001481 unsigned int rq_prod_last, rq_cons_last;
1482 unsigned int rp_cons_last, rp_prod_last;
Willy Tarreau576507f2010-01-07 00:09:04 +01001483 unsigned int req_ana_back;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001484 struct channel *req, *res;
1485 struct stream_interface *si_f, *si_b;
Willy Tarreau3d07a162019-04-25 19:15:20 +02001486 unsigned int rate;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001487
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001488 DBG_TRACE_ENTER(STRM_EV_STRM_PROC, s);
1489
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01001490 activity[tid].stream++;
1491
Willy Tarreau8f128b42014-11-28 15:07:47 +01001492 req = &s->req;
1493 res = &s->res;
1494
1495 si_f = &s->si[0];
1496 si_b = &s->si[1];
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001497
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001498 /* First, attempt to receive pending data from I/O layers */
Willy Tarreauade64782018-11-17 19:51:07 +01001499 si_sync_recv(si_f);
1500 si_sync_recv(si_b);
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001501
Willy Tarreau3d07a162019-04-25 19:15:20 +02001502 rate = update_freq_ctr(&s->call_rate, 1);
1503 if (rate >= 100000 && s->call_rate.prev_ctr) { // make sure to wait at least a full second
1504 stream_dump_and_crash(&s->obj_type, read_freq_ctr(&s->call_rate));
1505 }
Olivier Houchardc2aa7112018-09-11 18:27:21 +02001506
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001507 /* this data may be no longer valid, clear it */
Willy Tarreaueee5b512015-04-03 23:46:31 +02001508 if (s->txn)
1509 memset(&s->txn->auth, 0, sizeof(s->txn->auth));
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001510
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02001511 /* This flag must explicitly be set every time */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001512 req->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
1513 res->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001514
1515 /* Keep a copy of req/rep flags so that we can detect shutdowns */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001516 rqf_last = req->flags & ~CF_MASK_ANALYSER;
1517 rpf_last = res->flags & ~CF_MASK_ANALYSER;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001518
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001519 /* we don't want the stream interface functions to recursively wake us up */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001520 si_f->flags |= SI_FL_DONT_WAKE;
1521 si_b->flags |= SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001522
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001523 /* update pending events */
Olivier Houchard9f6af332018-05-25 14:04:04 +02001524 s->pending_events |= (state & TASK_WOKEN_ANY);
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001525
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001526 /* 1a: Check for low level timeouts if needed. We just set a flag on
1527 * stream interfaces when their timeouts have expired.
1528 */
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001529 if (unlikely(s->pending_events & TASK_WOKEN_TIMER)) {
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001530 si_check_timeouts(si_f);
1531 si_check_timeouts(si_b);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001532
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001533 /* check channel timeouts, and close the corresponding stream interfaces
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001534 * for future reads or writes. Note: this will also concern upper layers
1535 * but we do not touch any other flag. We must be careful and correctly
1536 * detect state changes when calling them.
1537 */
1538
Willy Tarreau8f128b42014-11-28 15:07:47 +01001539 channel_check_timeouts(req);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001540
Willy Tarreau8f128b42014-11-28 15:07:47 +01001541 if (unlikely((req->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1542 si_b->flags |= SI_FL_NOLINGER;
1543 si_shutw(si_b);
Willy Tarreau14641402009-12-29 14:49:56 +01001544 }
1545
Willy Tarreau8f128b42014-11-28 15:07:47 +01001546 if (unlikely((req->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1547 if (si_f->flags & SI_FL_NOHALF)
1548 si_f->flags |= SI_FL_NOLINGER;
1549 si_shutr(si_f);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001550 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001551
Willy Tarreau8f128b42014-11-28 15:07:47 +01001552 channel_check_timeouts(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001553
Willy Tarreau8f128b42014-11-28 15:07:47 +01001554 if (unlikely((res->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1555 si_f->flags |= SI_FL_NOLINGER;
1556 si_shutw(si_f);
Willy Tarreau14641402009-12-29 14:49:56 +01001557 }
1558
Willy Tarreau8f128b42014-11-28 15:07:47 +01001559 if (unlikely((res->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1560 if (si_b->flags & SI_FL_NOHALF)
1561 si_b->flags |= SI_FL_NOLINGER;
1562 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001563 }
Willy Tarreau798f4322012-11-08 14:49:17 +01001564
Christopher Fauleta00d8172016-11-10 14:58:05 +01001565 if (HAS_FILTERS(s))
1566 flt_stream_check_timeouts(s);
1567
Willy Tarreau798f4322012-11-08 14:49:17 +01001568 /* Once in a while we're woken up because the task expires. But
1569 * this does not necessarily mean that a timeout has been reached.
Willy Tarreau87b09662015-04-03 00:22:06 +02001570 * So let's not run a whole stream processing if only an expiration
Willy Tarreau798f4322012-11-08 14:49:17 +01001571 * timeout needs to be refreshed.
1572 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001573 if (!((req->flags | res->flags) &
Willy Tarreau798f4322012-11-08 14:49:17 +01001574 (CF_SHUTR|CF_READ_ACTIVITY|CF_READ_TIMEOUT|CF_SHUTW|
Willy Tarreauede3d882018-10-24 17:17:56 +02001575 CF_WRITE_ACTIVITY|CF_WRITE_TIMEOUT|CF_ANA_TIMEOUT)) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01001576 !((si_f->flags | si_b->flags) & (SI_FL_EXP|SI_FL_ERR)) &&
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001577 ((s->pending_events & TASK_WOKEN_ANY) == TASK_WOKEN_TIMER)) {
Willy Tarreau5fb04712016-05-04 10:18:37 +02001578 si_f->flags &= ~SI_FL_DONT_WAKE;
1579 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau798f4322012-11-08 14:49:17 +01001580 goto update_exp_and_leave;
Willy Tarreau5fb04712016-05-04 10:18:37 +02001581 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001582 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001583
Willy Tarreau829bd472019-06-06 09:17:23 +02001584 resync_stream_interface:
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001585 /* below we may emit error messages so we have to ensure that we have
1586 * our buffers properly allocated.
1587 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001588 if (!stream_alloc_work_buffer(s)) {
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001589 /* No buffer available, we've been subscribed to the list of
1590 * buffer waiters, let's wait for our turn.
1591 */
Willy Tarreau5fb04712016-05-04 10:18:37 +02001592 si_f->flags &= ~SI_FL_DONT_WAKE;
1593 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001594 goto update_exp_and_leave;
1595 }
1596
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001597 /* 1b: check for low-level errors reported at the stream interface.
1598 * First we check if it's a retryable error (in which case we don't
1599 * want to tell the buffer). Otherwise we report the error one level
1600 * upper by setting flags into the buffers. Note that the side towards
1601 * the client cannot have connect (hence retryable) errors. Also, the
1602 * connection setup code must be able to deal with any type of abort.
1603 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001604 srv = objt_server(s->target);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001605 if (unlikely(si_f->flags & SI_FL_ERR)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001606 if (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001607 si_shutr(si_f);
1608 si_shutw(si_f);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001609 si_report_error(si_f);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001610 if (!(req->analysers) && !(res->analysers)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001611 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1612 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001613 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001614 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001615 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001616 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001617 if (!(s->flags & SF_ERR_MASK))
1618 s->flags |= SF_ERR_CLICL;
1619 if (!(s->flags & SF_FINST_MASK))
1620 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001621 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001622 }
1623 }
1624
Willy Tarreau8f128b42014-11-28 15:07:47 +01001625 if (unlikely(si_b->flags & SI_FL_ERR)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001626 if (si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001627 si_shutr(si_b);
1628 si_shutw(si_b);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001629 si_report_error(si_b);
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001630 _HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001631 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001632 _HA_ATOMIC_ADD(&srv->counters.failed_resp, 1);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001633 if (!(req->analysers) && !(res->analysers)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001634 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1635 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001636 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001637 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001638 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001639 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001640 if (!(s->flags & SF_ERR_MASK))
1641 s->flags |= SF_ERR_SRVCL;
1642 if (!(s->flags & SF_FINST_MASK))
1643 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001644 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001645 }
1646 /* note: maybe we should process connection errors here ? */
1647 }
1648
Willy Tarreau4f283fa2019-06-05 14:34:03 +02001649 if (si_state_in(si_b->state, SI_SB_CON|SI_SB_RDY)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001650 /* we were trying to establish a connection on the server side,
1651 * maybe it succeeded, maybe it failed, maybe we timed out, ...
1652 */
Willy Tarreaud66ed882019-06-05 18:02:04 +02001653 if (si_b->state == SI_ST_RDY)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001654 back_handle_st_rdy(s);
Willy Tarreaud66ed882019-06-05 18:02:04 +02001655 else if (si_b->state == SI_ST_CON)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001656 back_handle_st_con(s);
Willy Tarreaud66ed882019-06-05 18:02:04 +02001657
1658 if (si_b->state == SI_ST_CER)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001659 back_handle_st_cer(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001660 else if (si_b->state == SI_ST_EST)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001661 back_establish(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001662
1663 /* state is now one of SI_ST_CON (still in progress), SI_ST_EST
1664 * (established), SI_ST_DIS (abort), SI_ST_CLO (last error),
1665 * SI_ST_ASS/SI_ST_TAR/SI_ST_REQ for retryable errors.
1666 */
1667 }
1668
Willy Tarreau8f128b42014-11-28 15:07:47 +01001669 rq_prod_last = si_f->state;
1670 rq_cons_last = si_b->state;
1671 rp_cons_last = si_f->state;
1672 rp_prod_last = si_b->state;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001673
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001674 /* Check for connection closure */
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001675 DBG_TRACE_POINT(STRM_EV_STRM_PROC, s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001676
1677 /* nothing special to be done on client side */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001678 if (unlikely(si_f->state == SI_ST_DIS))
1679 si_f->state = SI_ST_CLO;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001680
1681 /* When a server-side connection is released, we have to count it and
1682 * check for pending connections on this server.
1683 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001684 if (unlikely(si_b->state == SI_ST_DIS)) {
1685 si_b->state = SI_ST_CLO;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001686 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01001687 if (srv) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001688 if (s->flags & SF_CURR_SESS) {
1689 s->flags &= ~SF_CURR_SESS;
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001690 _HA_ATOMIC_SUB(&srv->cur_sess, 1);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001691 }
1692 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001693 if (may_dequeue_tasks(srv, s->be))
1694 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001695 }
1696 }
1697
1698 /*
1699 * Note: of the transient states (REQ, CER, DIS), only REQ may remain
1700 * at this point.
1701 */
1702
Willy Tarreau0be0ef92009-03-08 19:20:25 +01001703 resync_request:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001704 /* Analyse request */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001705 if (((req->flags & ~rqf_last) & CF_MASK_ANALYSER) ||
1706 ((req->flags ^ rqf_last) & CF_MASK_STATIC) ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01001707 (req->analysers && (req->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01001708 si_f->state != rq_prod_last ||
1709 si_b->state != rq_cons_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001710 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001711 unsigned int flags = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001712
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001713 if (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001714 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001715 unsigned int ana_list;
1716 unsigned int ana_back;
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001717
Willy Tarreau90deb182010-01-07 00:20:41 +01001718 /* it's up to the analysers to stop new connections,
1719 * disable reading or closing. Note: if an analyser
1720 * disables any of these bits, it is responsible for
1721 * enabling them again when it disables itself, so
1722 * that other analysers are called in similar conditions.
1723 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001724 channel_auto_read(req);
1725 channel_auto_connect(req);
1726 channel_auto_close(req);
Willy Tarreauedcf6682008-11-30 23:15:34 +01001727
1728 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01001729 * req->analysers, following the bit order from LSB
Willy Tarreauedcf6682008-11-30 23:15:34 +01001730 * to MSB. The analysers must remove themselves from
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001731 * the list when not needed. Any analyser may return 0
1732 * to break out of the loop, either because of missing
1733 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02001734 * kill the stream. We loop at least once through each
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001735 * analyser, and we may loop again if other analysers
1736 * are added in the middle.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001737 *
1738 * We build a list of analysers to run. We evaluate all
1739 * of these analysers in the order of the lower bit to
1740 * the higher bit. This ordering is very important.
1741 * An analyser will often add/remove other analysers,
1742 * including itself. Any changes to itself have no effect
1743 * on the loop. If it removes any other analysers, we
1744 * want those analysers not to be called anymore during
1745 * this loop. If it adds an analyser that is located
1746 * after itself, we want it to be scheduled for being
1747 * processed during the loop. If it adds an analyser
1748 * which is located before it, we want it to switch to
1749 * it immediately, even if it has already been called
1750 * once but removed since.
1751 *
1752 * In order to achieve this, we compare the analyser
1753 * list after the call with a copy of it before the
1754 * call. The work list is fed with analyser bits that
1755 * appeared during the call. Then we compare previous
1756 * work list with the new one, and check the bits that
1757 * appeared. If the lowest of these bits is lower than
1758 * the current bit, it means we have enabled a previous
1759 * analyser and must immediately loop again.
Willy Tarreauedcf6682008-11-30 23:15:34 +01001760 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001761
Willy Tarreau8f128b42014-11-28 15:07:47 +01001762 ana_list = ana_back = req->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001763 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001764 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01001765 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_FE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001766 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_FE);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001767 FLT_ANALYZE(s, req, http_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_HTTP);
1768 FLT_ANALYZE(s, req, http_wait_for_request_body, ana_list, ana_back, AN_REQ_HTTP_BODY);
1769 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 +02001770 FLT_ANALYZE(s, req, process_switching_rules, ana_list, ana_back, AN_REQ_SWITCHING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001771 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001772 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_BE);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001773 FLT_ANALYZE(s, req, http_process_req_common, ana_list, ana_back, AN_REQ_HTTP_PROCESS_BE, s->be);
1774 FLT_ANALYZE(s, req, http_process_tarpit, ana_list, ana_back, AN_REQ_HTTP_TARPIT);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001775 FLT_ANALYZE(s, req, process_server_rules, ana_list, ana_back, AN_REQ_SRV_RULES);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001776 FLT_ANALYZE(s, req, http_process_request, ana_list, ana_back, AN_REQ_HTTP_INNER);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001777 FLT_ANALYZE(s, req, tcp_persist_rdp_cookie, ana_list, ana_back, AN_REQ_PRST_RDP_COOKIE);
1778 FLT_ANALYZE(s, req, process_sticking_rules, ana_list, ana_back, AN_REQ_STICKING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001779 ANALYZE (s, req, flt_analyze_http_headers, ana_list, ana_back, AN_REQ_FLT_HTTP_HDRS);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001780 ANALYZE (s, req, http_request_forward_body, ana_list, ana_back, AN_REQ_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02001781 ANALYZE (s, req, pcli_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001782 ANALYZE (s, req, flt_xfer_data, ana_list, ana_back, AN_REQ_FLT_XFER_DATA);
1783 ANALYZE (s, req, flt_end_analyze, ana_list, ana_back, AN_REQ_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01001784 break;
1785 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001786 }
Willy Tarreau84455332009-03-15 22:34:05 +01001787
Willy Tarreau8f128b42014-11-28 15:07:47 +01001788 rq_prod_last = si_f->state;
1789 rq_cons_last = si_b->state;
1790 req->flags &= ~CF_WAKE_ONCE;
1791 rqf_last = req->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001792
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02001793 if ((req->flags ^ flags) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001794 goto resync_request;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001795 }
1796
Willy Tarreau576507f2010-01-07 00:09:04 +01001797 /* we'll monitor the request analysers while parsing the response,
1798 * because some response analysers may indirectly enable new request
1799 * analysers (eg: HTTP keep-alive).
1800 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001801 req_ana_back = req->analysers;
Willy Tarreau576507f2010-01-07 00:09:04 +01001802
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001803 resync_response:
1804 /* Analyse response */
1805
Willy Tarreau8f128b42014-11-28 15:07:47 +01001806 if (((res->flags & ~rpf_last) & CF_MASK_ANALYSER) ||
1807 (res->flags ^ rpf_last) & CF_MASK_STATIC ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01001808 (res->analysers && (res->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01001809 si_f->state != rp_cons_last ||
1810 si_b->state != rp_prod_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001811 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001812 unsigned int flags = res->flags;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001813
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001814 if (si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001815 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001816 unsigned int ana_list;
1817 unsigned int ana_back;
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001818
Willy Tarreau90deb182010-01-07 00:20:41 +01001819 /* it's up to the analysers to stop disable reading or
1820 * closing. Note: if an analyser disables any of these
1821 * bits, it is responsible for enabling them again when
1822 * it disables itself, so that other analysers are called
1823 * in similar conditions.
1824 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001825 channel_auto_read(res);
1826 channel_auto_close(res);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001827
1828 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01001829 * res->analysers, following the bit order from LSB
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001830 * to MSB. The analysers must remove themselves from
1831 * the list when not needed. Any analyser may return 0
1832 * to break out of the loop, either because of missing
1833 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02001834 * kill the stream. We loop at least once through each
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001835 * analyser, and we may loop again if other analysers
1836 * are added in the middle.
1837 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001838
Willy Tarreau8f128b42014-11-28 15:07:47 +01001839 ana_list = ana_back = res->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001840 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001841 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01001842 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_FE);
1843 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001844 FLT_ANALYZE(s, res, tcp_inspect_response, ana_list, ana_back, AN_RES_INSPECT);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001845 FLT_ANALYZE(s, res, http_wait_for_response, ana_list, ana_back, AN_RES_WAIT_HTTP);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001846 FLT_ANALYZE(s, res, process_store_rules, ana_list, ana_back, AN_RES_STORE_RULES);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001847 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 +01001848 ANALYZE (s, res, flt_analyze_http_headers, ana_list, ana_back, AN_RES_FLT_HTTP_HDRS);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001849 ANALYZE (s, res, http_response_forward_body, ana_list, ana_back, AN_RES_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02001850 ANALYZE (s, res, pcli_wait_for_response, ana_list, ana_back, AN_RES_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001851 ANALYZE (s, res, flt_xfer_data, ana_list, ana_back, AN_RES_FLT_XFER_DATA);
1852 ANALYZE (s, res, flt_end_analyze, ana_list, ana_back, AN_RES_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01001853 break;
1854 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001855 }
1856
Willy Tarreau8f128b42014-11-28 15:07:47 +01001857 rp_cons_last = si_f->state;
1858 rp_prod_last = si_b->state;
Christopher Fauletcdaea892017-07-06 15:49:30 +02001859 res->flags &= ~CF_WAKE_ONCE;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001860 rpf_last = res->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001861
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02001862 if ((res->flags ^ flags) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001863 goto resync_response;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001864 }
1865
Willy Tarreau576507f2010-01-07 00:09:04 +01001866 /* maybe someone has added some request analysers, so we must check and loop */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001867 if (req->analysers & ~req_ana_back)
Willy Tarreau576507f2010-01-07 00:09:04 +01001868 goto resync_request;
1869
Willy Tarreau8f128b42014-11-28 15:07:47 +01001870 if ((req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0499e352010-12-17 07:13:42 +01001871 goto resync_request;
1872
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001873 /* FIXME: here we should call protocol handlers which rely on
1874 * both buffers.
1875 */
1876
1877
1878 /*
Willy Tarreau87b09662015-04-03 00:22:06 +02001879 * Now we propagate unhandled errors to the stream. Normally
Willy Tarreauae526782010-03-04 20:34:23 +01001880 * we're just in a data phase here since it means we have not
1881 * seen any analyser who could set an error status.
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001882 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001883 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001884 if (unlikely(!(s->flags & SF_ERR_MASK))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001885 if (req->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001886 /* Report it if the client got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001887 req->analysers = 0;
1888 if (req->flags & CF_READ_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001889 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1890 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001891 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001892 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001893 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001894 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001895 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01001896 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001897 else if (req->flags & CF_READ_TIMEOUT) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001898 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1899 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001900 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001901 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001902 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001903 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001904 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01001905 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001906 else if (req->flags & CF_WRITE_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001907 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1908 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001909 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001910 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001911 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001912 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001913 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01001914 }
1915 else {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001916 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1917 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001918 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001919 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001920 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001921 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001922 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01001923 }
Willy Tarreau84455332009-03-15 22:34:05 +01001924 sess_set_term_flags(s);
Christopher Faulet5e1a9d72019-04-23 17:34:22 +02001925
1926 /* Abort the request if a client error occurred while
1927 * the backend stream-interface is in the SI_ST_INI
1928 * state. It is switched into the SI_ST_CLO state and
1929 * the request channel is erased. */
1930 if (si_b->state == SI_ST_INI) {
1931 si_b->state = SI_ST_CLO;
1932 channel_abort(req);
1933 if (IS_HTX_STRM(s))
1934 channel_htx_erase(req, htxbuf(&req->buf));
1935 else
1936 channel_erase(req);
1937 }
Willy Tarreau84455332009-03-15 22:34:05 +01001938 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001939 else if (res->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001940 /* Report it if the server got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001941 res->analysers = 0;
1942 if (res->flags & CF_READ_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001943 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1944 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001945 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001946 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001947 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001948 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001949 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01001950 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001951 else if (res->flags & CF_READ_TIMEOUT) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001952 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1953 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001954 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001955 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001956 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001957 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001958 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01001959 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001960 else if (res->flags & CF_WRITE_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001961 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1962 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001963 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001964 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001965 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001966 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001967 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01001968 }
1969 else {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001970 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1971 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001972 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001973 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001974 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001975 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001976 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01001977 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001978 sess_set_term_flags(s);
1979 }
Willy Tarreau84455332009-03-15 22:34:05 +01001980 }
1981
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001982 /*
1983 * Here we take care of forwarding unhandled data. This also includes
1984 * connection establishments and shutdown requests.
1985 */
1986
1987
Willy Tarreau7c84bab2009-03-08 21:38:23 +01001988 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02001989 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001990 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001991 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01001992 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02001993 if (unlikely((!req->analysers || (req->analysers == AN_REQ_FLT_END && !(req->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01001994 !(req->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001995 (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01001996 (req->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01001997 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01001998 * attached to it. If any data are left in, we'll permit them to
1999 * move.
2000 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002001 channel_auto_read(req);
2002 channel_auto_connect(req);
2003 channel_auto_close(req);
Willy Tarreau5bd8c372009-01-19 00:32:22 +01002004
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002005 if (IS_HTX_STRM(s)) {
2006 struct htx *htx = htxbuf(&req->buf);
2007
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002008 /* We'll let data flow between the producer (if still connected)
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002009 * to the consumer.
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002010 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002011 co_set_data(req, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002012 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002013 channel_htx_forward_forever(req, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002014 }
2015 else {
2016 /* We'll let data flow between the producer (if still connected)
2017 * to the consumer (which might possibly not be connected yet).
2018 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002019 c_adv(req, ci_data(req));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002020 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2021 channel_forward_forever(req);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002022 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002023 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002024
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002025 /* check if it is wise to enable kernel splicing to forward request data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002026 if (!(req->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2027 req->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002028 (global.tune.options & GTUNE_USE_SPLICE) &&
Christopher Faulet276c1e02019-11-05 16:49:23 +01002029 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->rcv_pipe &&
2030 __objt_cs(si_f->end)->conn->mux && __objt_cs(si_f->end)->conn->mux->rcv_pipe) &&
2031 (objt_cs(si_b->end) && __objt_cs(si_b->end)->conn->xprt && __objt_cs(si_b->end)->conn->xprt->snd_pipe &&
2032 __objt_cs(si_b->end)->conn->mux && __objt_cs(si_b->end)->conn->mux->snd_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002033 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002034 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_REQ) ||
2035 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002036 (req->flags & CF_STREAMER_FAST)))) {
2037 req->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002038 }
2039
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002040 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002041 rqf_last = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002042
Willy Tarreau520d95e2009-09-19 21:04:57 +02002043 /* it's possible that an upper layer has requested a connection setup or abort.
2044 * There are 2 situations where we decide to establish a new connection :
2045 * - there are data scheduled for emission in the buffer
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002046 * - the CF_AUTO_CONNECT flag is set (active connection)
Willy Tarreau520d95e2009-09-19 21:04:57 +02002047 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002048 if (si_b->state == SI_ST_INI) {
Christopher Faulet5e1a9d72019-04-23 17:34:22 +02002049 if (!(req->flags & CF_SHUTW)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002050 if ((req->flags & CF_AUTO_CONNECT) || !channel_is_empty(req)) {
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002051 /* If we have an appctx, there is no connect method, so we
2052 * immediately switch to the connected state, otherwise we
2053 * perform a connection request.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002054 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002055 si_b->state = SI_ST_REQ; /* new connection requested */
2056 si_b->conn_retries = s->be->conn_retries;
Olivier Houchard602bf7d2019-05-10 13:59:15 +02002057 if ((s->be->retry_type &~ PR_RE_CONN_FAILED) &&
2058 !(si_b->flags & SI_FL_D_L7_RETRY))
Olivier Houcharda254a372019-04-05 15:30:12 +02002059 si_b->flags |= SI_FL_L7_RETRY;
Willy Tarreau520d95e2009-09-19 21:04:57 +02002060 }
Willy Tarreau73201222009-08-16 18:27:24 +02002061 }
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002062 else {
Willy Tarreau0542c8b2017-11-24 15:01:10 +01002063 si_release_endpoint(si_b);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002064 si_b->state = SI_ST_CLO; /* shutw+ini = abort */
2065 channel_shutw_now(req); /* fix buffer flags upon abort */
2066 channel_shutr_now(res);
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002067 }
Willy Tarreau92795622009-03-06 12:51:23 +01002068 }
2069
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002070
2071 /* we may have a pending connection request, or a connection waiting
2072 * for completion.
2073 */
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002074 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 +02002075 /* prune the request variables and swap to the response variables. */
2076 if (s->vars_reqres.scope != SCOPE_RES) {
Jerome Magnin2f44e882019-11-09 18:00:47 +01002077 if (!LIST_ISEMPTY(&s->vars_reqres.head))
Willy Tarreaucda7f3f2018-10-28 13:44:36 +01002078 vars_prune(&s->vars_reqres, s->sess, s);
Jerome Magnin2f44e882019-11-09 18:00:47 +01002079 vars_init(&s->vars_reqres, SCOPE_RES);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +02002080 }
2081
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002082 do {
2083 /* nb: step 1 might switch from QUE to ASS, but we first want
2084 * to give a chance to step 2 to perform a redirect if needed.
2085 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002086 if (si_b->state != SI_ST_REQ)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002087 back_try_conn_req(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002088 if (si_b->state == SI_ST_REQ)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002089 back_handle_st_req(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002090
Willy Tarreauada4c582020-03-04 16:42:03 +01002091 /* get a chance to complete an immediate connection setup */
2092 if (si_b->state == SI_ST_RDY)
2093 goto resync_stream_interface;
2094
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +01002095 /* applets directly go to the ESTABLISHED state. Similarly,
2096 * servers experience the same fate when their connection
2097 * is reused.
2098 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002099 if (unlikely(si_b->state == SI_ST_EST))
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002100 back_establish(s);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01002101
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002102 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002103 if (si_b->state == SI_ST_ASS && srv && srv->rdr_len && (s->flags & SF_REDIRECTABLE))
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02002104 http_perform_server_redirect(s, si_b);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002105 } while (si_b->state == SI_ST_ASS);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002106 }
2107
Willy Tarreau829bd472019-06-06 09:17:23 +02002108 /* Let's see if we can send the pending request now */
2109 si_sync_send(si_b);
2110
2111 /*
2112 * Now forward all shutdown requests between both sides of the request buffer
2113 */
2114
2115 /* first, let's check if the request buffer needs to shutdown(write), which may
2116 * happen either because the input is closed or because we want to force a close
2117 * once the server has begun to respond. If a half-closed timeout is set, we adjust
2118 * the other side's timeout as well.
2119 */
2120 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
2121 (CF_AUTO_CLOSE|CF_SHUTR))) {
2122 channel_shutw_now(req);
2123 }
2124
2125 /* shutdown(write) pending */
2126 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2127 channel_is_empty(req))) {
2128 if (req->flags & CF_READ_ERROR)
2129 si_b->flags |= SI_FL_NOLINGER;
2130 si_shutw(si_b);
2131 }
2132
2133 /* shutdown(write) done on server side, we must stop the client too */
2134 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW &&
2135 !req->analysers))
2136 channel_shutr_now(req);
2137
2138 /* shutdown(read) pending */
2139 if (unlikely((req->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2140 if (si_f->flags & SI_FL_NOHALF)
2141 si_f->flags |= SI_FL_NOLINGER;
2142 si_shutr(si_f);
2143 }
2144
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002145 /* Benchmarks have shown that it's optimal to do a full resync now */
Willy Tarreau829bd472019-06-06 09:17:23 +02002146 if (si_f->state == SI_ST_DIS ||
2147 si_state_in(si_b->state, SI_SB_RDY|SI_SB_DIS) ||
2148 (si_f->flags & SI_FL_ERR && si_f->state != SI_ST_CLO) ||
2149 (si_b->flags & SI_FL_ERR && si_b->state != SI_ST_CLO))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002150 goto resync_stream_interface;
2151
Willy Tarreau815a9b22010-07-27 17:15:12 +02002152 /* otherwise we want to check if we need to resync the req buffer or not */
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02002153 if ((req->flags ^ rqf_last) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002154 goto resync_request;
2155
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002156 /* perform output updates to the response buffer */
Willy Tarreau84455332009-03-15 22:34:05 +01002157
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002158 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002159 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002160 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002161 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002162 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02002163 if (unlikely((!res->analysers || (res->analysers == AN_RES_FLT_END && !(res->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002164 !(res->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002165 si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002166 (res->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002167 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002168 * attached to it. If any data are left in, we'll permit them to
2169 * move.
2170 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002171 channel_auto_read(res);
2172 channel_auto_close(res);
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002173
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002174 if (IS_HTX_STRM(s)) {
2175 struct htx *htx = htxbuf(&res->buf);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002176
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002177 /* We'll let data flow between the producer (if still connected)
2178 * to the consumer.
2179 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002180 co_set_data(res, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002181 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002182 channel_htx_forward_forever(res, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002183 }
2184 else {
2185 /* We'll let data flow between the producer (if still connected)
2186 * to the consumer.
2187 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002188 c_adv(res, ci_data(res));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002189 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2190 channel_forward_forever(res);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002191 }
Willy Tarreau42529c32015-07-09 18:38:57 +02002192
Willy Tarreauce887fd2012-05-12 12:50:00 +02002193 /* if we have no analyser anymore in any direction and have a
Willy Tarreau05cdd962014-05-10 14:30:07 +02002194 * tunnel timeout set, use it now. Note that we must respect
2195 * the half-closed timeouts as well.
Willy Tarreauce887fd2012-05-12 12:50:00 +02002196 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002197 if (!req->analysers && s->be->timeout.tunnel) {
2198 req->rto = req->wto = res->rto = res->wto =
Willy Tarreauce887fd2012-05-12 12:50:00 +02002199 s->be->timeout.tunnel;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002200
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002201 if ((req->flags & CF_SHUTR) && tick_isset(sess->fe->timeout.clientfin))
2202 res->wto = sess->fe->timeout.clientfin;
Willy Tarreau8f128b42014-11-28 15:07:47 +01002203 if ((req->flags & CF_SHUTW) && tick_isset(s->be->timeout.serverfin))
2204 res->rto = s->be->timeout.serverfin;
2205 if ((res->flags & CF_SHUTR) && tick_isset(s->be->timeout.serverfin))
2206 req->wto = s->be->timeout.serverfin;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002207 if ((res->flags & CF_SHUTW) && tick_isset(sess->fe->timeout.clientfin))
2208 req->rto = sess->fe->timeout.clientfin;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002209
Willy Tarreau8f128b42014-11-28 15:07:47 +01002210 req->rex = tick_add(now_ms, req->rto);
2211 req->wex = tick_add(now_ms, req->wto);
2212 res->rex = tick_add(now_ms, res->rto);
2213 res->wex = tick_add(now_ms, res->wto);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002214 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002215 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002216
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002217 /* check if it is wise to enable kernel splicing to forward response data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002218 if (!(res->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2219 res->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002220 (global.tune.options & GTUNE_USE_SPLICE) &&
Christopher Faulet276c1e02019-11-05 16:49:23 +01002221 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->snd_pipe &&
2222 __objt_cs(si_f->end)->conn->mux && __objt_cs(si_f->end)->conn->mux->snd_pipe) &&
2223 (objt_cs(si_b->end) && __objt_cs(si_b->end)->conn->xprt && __objt_cs(si_b->end)->conn->xprt->rcv_pipe &&
2224 __objt_cs(si_b->end)->conn->mux && __objt_cs(si_b->end)->conn->mux->rcv_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002225 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002226 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_RTR) ||
2227 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002228 (res->flags & CF_STREAMER_FAST)))) {
2229 res->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002230 }
2231
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002232 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002233 rpf_last = res->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002234
Willy Tarreau829bd472019-06-06 09:17:23 +02002235 /* Let's see if we can send the pending response now */
2236 si_sync_send(si_f);
2237
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002238 /*
2239 * Now forward all shutdown requests between both sides of the buffer
2240 */
2241
2242 /*
2243 * FIXME: this is probably where we should produce error responses.
2244 */
2245
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002246 /* first, let's check if the response buffer needs to shutdown(write) */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002247 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau05cdd962014-05-10 14:30:07 +02002248 (CF_AUTO_CLOSE|CF_SHUTR))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002249 channel_shutw_now(res);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002250 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002251
2252 /* shutdown(write) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002253 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2254 channel_is_empty(res))) {
2255 si_shutw(si_f);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002256 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002257
2258 /* shutdown(write) done on the client side, we must stop the server too */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002259 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW) &&
2260 !res->analysers)
2261 channel_shutr_now(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002262
2263 /* shutdown(read) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002264 if (unlikely((res->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2265 if (si_b->flags & SI_FL_NOHALF)
2266 si_b->flags |= SI_FL_NOLINGER;
2267 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002268 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002269
Willy Tarreau829bd472019-06-06 09:17:23 +02002270 if (si_f->state == SI_ST_DIS ||
2271 si_state_in(si_b->state, SI_SB_RDY|SI_SB_DIS) ||
2272 (si_f->flags & SI_FL_ERR && si_f->state != SI_ST_CLO) ||
2273 (si_b->flags & SI_FL_ERR && si_b->state != SI_ST_CLO))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002274 goto resync_stream_interface;
2275
Willy Tarreau3c5c0662019-06-06 14:32:49 +02002276 if ((req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002277 goto resync_request;
2278
Willy Tarreau8f128b42014-11-28 15:07:47 +01002279 if ((res->flags ^ rpf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002280 goto resync_response;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002281
Willy Tarreau829bd472019-06-06 09:17:23 +02002282 if (((req->flags ^ rqf_last) | (res->flags ^ rpf_last)) & CF_MASK_ANALYSER)
2283 goto resync_request;
2284
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002285 /* we're interested in getting wakeups again */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002286 si_f->flags &= ~SI_FL_DONT_WAKE;
2287 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002288
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002289 /* This is needed only when debugging is enabled, to indicate
2290 * client-side or server-side close. Please note that in the unlikely
2291 * event where both sides would close at once, the sequence is reported
2292 * on the server side first.
2293 */
2294 if (unlikely((global.mode & MODE_DEBUG) &&
2295 (!(global.mode & MODE_QUIET) ||
2296 (global.mode & MODE_VERBOSE)))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002297 if (si_b->state == SI_ST_CLO &&
2298 si_b->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002299 chunk_printf(&trash, "%08x:%s.srvcls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002300 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002301 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2302 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01002303 DISGUISE(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002304 }
2305
Willy Tarreau8f128b42014-11-28 15:07:47 +01002306 if (si_f->state == SI_ST_CLO &&
2307 si_f->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002308 chunk_printf(&trash, "%08x:%s.clicls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002309 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002310 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2311 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01002312 DISGUISE(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002313 }
2314 }
2315
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002316 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 +02002317 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED) && !(s->flags & SF_IGNORE))
Willy Tarreau87b09662015-04-03 00:22:06 +02002318 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002319
Willy Tarreaud14844a2018-11-08 18:15:29 +01002320 si_update_both(si_f, si_b);
Olivier Houchard53216e72018-10-10 15:46:36 +02002321
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002322 /* Trick: if a request is being waiting for the server to respond,
2323 * and if we know the server can timeout, we don't want the timeout
2324 * to expire on the client side first, but we're still interested
2325 * in passing data from the client to the server (eg: POST). Thus,
2326 * we can cancel the client's request timeout if the server's
2327 * request timeout is set and the server has not yet sent a response.
2328 */
2329
Willy Tarreau8f128b42014-11-28 15:07:47 +01002330 if ((res->flags & (CF_AUTO_CLOSE|CF_SHUTR)) == 0 &&
2331 (tick_isset(req->wex) || tick_isset(res->rex))) {
2332 req->flags |= CF_READ_NOEXP;
2333 req->rex = TICK_ETERNITY;
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002334 }
2335
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002336 /* Reset pending events now */
2337 s->pending_events = 0;
2338
Willy Tarreau798f4322012-11-08 14:49:17 +01002339 update_exp_and_leave:
Willy Tarreau5fb04712016-05-04 10:18:37 +02002340 /* Note: please ensure that if you branch here you disable SI_FL_DONT_WAKE */
Christopher Fauleta00d8172016-11-10 14:58:05 +01002341 t->expire = tick_first((tick_is_expired(t->expire, now_ms) ? 0 : t->expire),
2342 tick_first(tick_first(req->rex, req->wex),
2343 tick_first(res->rex, res->wex)));
Willy Tarreaudef0d222016-11-08 22:03:00 +01002344 if (!req->analysers)
2345 req->analyse_exp = TICK_ETERNITY;
2346
2347 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED) &&
2348 (!tick_isset(req->analyse_exp) || tick_is_expired(req->analyse_exp, now_ms)))
2349 req->analyse_exp = tick_add(now_ms, 5000);
2350
2351 t->expire = tick_first(t->expire, req->analyse_exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002352
Willy Tarreau9a398be2017-11-10 17:14:23 +01002353 t->expire = tick_first(t->expire, res->analyse_exp);
2354
Willy Tarreau8f128b42014-11-28 15:07:47 +01002355 if (si_f->exp)
2356 t->expire = tick_first(t->expire, si_f->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002357
Willy Tarreau8f128b42014-11-28 15:07:47 +01002358 if (si_b->exp)
2359 t->expire = tick_first(t->expire, si_b->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002360
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002361 s->pending_events &= ~(TASK_WOKEN_TIMER | TASK_WOKEN_RES);
Willy Tarreau87b09662015-04-03 00:22:06 +02002362 stream_release_buffers(s);
Christopher Fauleteea8fc72019-11-05 16:18:10 +01002363
2364 DBG_TRACE_DEVEL("queuing", STRM_EV_STRM_PROC, s);
Willy Tarreau26c25062009-03-08 09:38:41 +01002365 return t; /* nothing more to do */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002366 }
2367
Christopher Fauleteea8fc72019-11-05 16:18:10 +01002368 DBG_TRACE_DEVEL("releasing", STRM_EV_STRM_PROC, s);
2369
Willy Tarreaue7dff022015-04-03 01:14:29 +02002370 if (s->flags & SF_BE_ASSIGNED)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002371 _HA_ATOMIC_SUB(&s->be->beconn, 1);
Willy Tarreau6f5e4b92017-09-15 09:07:56 +02002372
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002373 if (unlikely((global.mode & MODE_DEBUG) &&
2374 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)))) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002375 chunk_printf(&trash, "%08x:%s.closed[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002376 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002377 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2378 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01002379 DISGUISE(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002380 }
2381
2382 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
Olivier Houchard4c18f942019-07-31 18:05:26 +02002383 if (!(s->flags & SF_IGNORE))
2384 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002385
Willy Tarreaueee5b512015-04-03 23:46:31 +02002386 if (s->txn && s->txn->status) {
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002387 int n;
2388
Willy Tarreaueee5b512015-04-03 23:46:31 +02002389 n = s->txn->status / 100;
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002390 if (n < 1 || n > 5)
2391 n = 0;
2392
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002393 if (sess->fe->mode == PR_MODE_HTTP) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002394 _HA_ATOMIC_ADD(&sess->fe->fe_counters.p.http.rsp[n], 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002395 }
Willy Tarreaue7dff022015-04-03 01:14:29 +02002396 if ((s->flags & SF_BE_ASSIGNED) &&
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002397 (s->be->mode == PR_MODE_HTTP)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002398 _HA_ATOMIC_ADD(&s->be->be_counters.p.http.rsp[n], 1);
2399 _HA_ATOMIC_ADD(&s->be->be_counters.p.http.cum_req, 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002400 }
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002401 }
2402
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002403 /* let's do a final log if we need it */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002404 if (!LIST_ISEMPTY(&sess->fe->logformat) && s->logs.logwait &&
Willy Tarreaue7dff022015-04-03 01:14:29 +02002405 !(s->flags & SF_MONITOR) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002406 (!(sess->fe->options & PR_O_NULLNOLOG) || req->total)) {
Willy Tarreau66425e32018-07-25 06:55:12 +02002407 /* we may need to know the position in the queue */
2408 pendconn_free(s);
Willy Tarreaua5555ec2008-11-30 19:02:32 +01002409 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002410 }
2411
Willy Tarreau87b09662015-04-03 00:22:06 +02002412 /* update time stats for this stream */
2413 stream_update_time_stats(s);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002414
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002415 /* the task MUST not be in the run queue anymore */
Willy Tarreau87b09662015-04-03 00:22:06 +02002416 stream_free(s);
Olivier Houchard3f795f72019-04-17 22:51:06 +02002417 task_destroy(t);
Willy Tarreau26c25062009-03-08 09:38:41 +01002418 return NULL;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002419}
2420
Willy Tarreau87b09662015-04-03 00:22:06 +02002421/* Update the stream's backend and server time stats */
2422void stream_update_time_stats(struct stream *s)
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002423{
2424 int t_request;
2425 int t_queue;
2426 int t_connect;
2427 int t_data;
2428 int t_close;
2429 struct server *srv;
2430
2431 t_request = 0;
2432 t_queue = s->logs.t_queue;
2433 t_connect = s->logs.t_connect;
2434 t_close = s->logs.t_close;
2435 t_data = s->logs.t_data;
2436
2437 if (s->be->mode != PR_MODE_HTTP)
2438 t_data = t_connect;
2439
2440 if (t_connect < 0 || t_data < 0)
2441 return;
2442
2443 if (tv_isge(&s->logs.tv_request, &s->logs.tv_accept))
2444 t_request = tv_ms_elapsed(&s->logs.tv_accept, &s->logs.tv_request);
2445
2446 t_data -= t_connect;
2447 t_connect -= t_queue;
2448 t_queue -= t_request;
2449
2450 srv = objt_server(s->target);
2451 if (srv) {
2452 swrate_add(&srv->counters.q_time, TIME_STATS_SAMPLES, t_queue);
2453 swrate_add(&srv->counters.c_time, TIME_STATS_SAMPLES, t_connect);
2454 swrate_add(&srv->counters.d_time, TIME_STATS_SAMPLES, t_data);
2455 swrate_add(&srv->counters.t_time, TIME_STATS_SAMPLES, t_close);
Christopher Fauletefb41f02019-11-08 14:53:15 +01002456 HA_ATOMIC_UPDATE_MAX(&srv->counters.qtime_max, t_queue);
2457 HA_ATOMIC_UPDATE_MAX(&srv->counters.ctime_max, t_connect);
2458 HA_ATOMIC_UPDATE_MAX(&srv->counters.dtime_max, t_data);
2459 HA_ATOMIC_UPDATE_MAX(&srv->counters.ttime_max, t_close);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002460 }
2461 swrate_add(&s->be->be_counters.q_time, TIME_STATS_SAMPLES, t_queue);
2462 swrate_add(&s->be->be_counters.c_time, TIME_STATS_SAMPLES, t_connect);
2463 swrate_add(&s->be->be_counters.d_time, TIME_STATS_SAMPLES, t_data);
2464 swrate_add(&s->be->be_counters.t_time, TIME_STATS_SAMPLES, t_close);
Christopher Fauletefb41f02019-11-08 14:53:15 +01002465 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.qtime_max, t_queue);
2466 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.ctime_max, t_connect);
2467 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.dtime_max, t_data);
2468 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.ttime_max, t_close);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002469}
2470
Willy Tarreau7c669d72008-06-20 15:04:11 +02002471/*
2472 * This function adjusts sess->srv_conn and maintains the previous and new
Willy Tarreau87b09662015-04-03 00:22:06 +02002473 * server's served stream counts. Setting newsrv to NULL is enough to release
Willy Tarreau7c669d72008-06-20 15:04:11 +02002474 * current connection slot. This function also notifies any LB algo which might
Willy Tarreau87b09662015-04-03 00:22:06 +02002475 * expect to be informed about any change in the number of active streams on a
Willy Tarreau7c669d72008-06-20 15:04:11 +02002476 * server.
2477 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002478void sess_change_server(struct stream *sess, struct server *newsrv)
Willy Tarreau7c669d72008-06-20 15:04:11 +02002479{
2480 if (sess->srv_conn == newsrv)
2481 return;
2482
2483 if (sess->srv_conn) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002484 _HA_ATOMIC_SUB(&sess->srv_conn->served, 1);
2485 _HA_ATOMIC_SUB(&sess->srv_conn->proxy->served, 1);
2486 __ha_barrier_atomic_store();
Willy Tarreau7c669d72008-06-20 15:04:11 +02002487 if (sess->srv_conn->proxy->lbprm.server_drop_conn)
2488 sess->srv_conn->proxy->lbprm.server_drop_conn(sess->srv_conn);
Willy Tarreau87b09662015-04-03 00:22:06 +02002489 stream_del_srv_conn(sess);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002490 }
2491
2492 if (newsrv) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002493 _HA_ATOMIC_ADD(&newsrv->served, 1);
2494 _HA_ATOMIC_ADD(&newsrv->proxy->served, 1);
2495 __ha_barrier_atomic_store();
Willy Tarreau7c669d72008-06-20 15:04:11 +02002496 if (newsrv->proxy->lbprm.server_take_conn)
2497 newsrv->proxy->lbprm.server_take_conn(newsrv);
Willy Tarreau87b09662015-04-03 00:22:06 +02002498 stream_add_srv_conn(sess, newsrv);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002499 }
2500}
2501
Willy Tarreau84455332009-03-15 22:34:05 +01002502/* Handle server-side errors for default protocols. It is called whenever a a
2503 * connection setup is aborted or a request is aborted in queue. It sets the
Willy Tarreau87b09662015-04-03 00:22:06 +02002504 * stream termination flags so that the caller does not have to worry about
Willy Tarreau84455332009-03-15 22:34:05 +01002505 * them. It's installed as ->srv_error for the server-side stream_interface.
2506 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002507void default_srv_error(struct stream *s, struct stream_interface *si)
Willy Tarreau84455332009-03-15 22:34:05 +01002508{
2509 int err_type = si->err_type;
2510 int err = 0, fin = 0;
2511
2512 if (err_type & SI_ET_QUEUE_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002513 err = SF_ERR_CLICL;
2514 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002515 }
2516 else if (err_type & SI_ET_CONN_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002517 err = SF_ERR_CLICL;
2518 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002519 }
2520 else if (err_type & SI_ET_QUEUE_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002521 err = SF_ERR_SRVTO;
2522 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002523 }
2524 else if (err_type & SI_ET_QUEUE_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002525 err = SF_ERR_SRVCL;
2526 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002527 }
2528 else if (err_type & SI_ET_CONN_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002529 err = SF_ERR_SRVTO;
2530 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002531 }
2532 else if (err_type & SI_ET_CONN_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002533 err = SF_ERR_SRVCL;
2534 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002535 }
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002536 else if (err_type & SI_ET_CONN_RES) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002537 err = SF_ERR_RESOURCE;
2538 fin = SF_FINST_C;
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002539 }
Willy Tarreau84455332009-03-15 22:34:05 +01002540 else /* SI_ET_CONN_OTHER and others */ {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002541 err = SF_ERR_INTERNAL;
2542 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002543 }
2544
Willy Tarreaue7dff022015-04-03 01:14:29 +02002545 if (!(s->flags & SF_ERR_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002546 s->flags |= err;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002547 if (!(s->flags & SF_FINST_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002548 s->flags |= fin;
2549}
Willy Tarreau7c669d72008-06-20 15:04:11 +02002550
Willy Tarreaue7dff022015-04-03 01:14:29 +02002551/* kill a stream and set the termination flags to <why> (one of SF_ERR_*) */
Willy Tarreau87b09662015-04-03 00:22:06 +02002552void stream_shutdown(struct stream *stream, int why)
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002553{
Willy Tarreau87b09662015-04-03 00:22:06 +02002554 if (stream->req.flags & (CF_SHUTW|CF_SHUTW_NOW))
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002555 return;
2556
Willy Tarreau87b09662015-04-03 00:22:06 +02002557 channel_shutw_now(&stream->req);
2558 channel_shutr_now(&stream->res);
2559 stream->task->nice = 1024;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002560 if (!(stream->flags & SF_ERR_MASK))
Willy Tarreau87b09662015-04-03 00:22:06 +02002561 stream->flags |= why;
2562 task_wakeup(stream->task, TASK_WOKEN_OTHER);
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002563}
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02002564
Willy Tarreau5484d582019-05-22 09:33:03 +02002565/* Appends a dump of the state of stream <s> into buffer <buf> which must have
2566 * preliminary be prepared by its caller, with each line prepended by prefix
2567 * <pfx>, and each line terminated by character <eol>.
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002568 */
Willy Tarreau5484d582019-05-22 09:33:03 +02002569void stream_dump(struct buffer *buf, const struct stream *s, const char *pfx, char eol)
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002570{
2571 const struct conn_stream *csf, *csb;
2572 const struct connection *cof, *cob;
2573 const struct appctx *acf, *acb;
2574 const struct server *srv;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002575 const char *src = "unknown";
2576 const char *dst = "unknown";
2577 char pn[INET6_ADDRSTRLEN];
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002578 const struct channel *req, *res;
2579 const struct stream_interface *si_f, *si_b;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002580
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002581 if (!s) {
Willy Tarreau5484d582019-05-22 09:33:03 +02002582 chunk_appendf(buf, "%sstrm=%p%c", pfx, s, eol);
2583 return;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002584 }
2585
Willy Tarreau5484d582019-05-22 09:33:03 +02002586 if (s->obj_type != OBJ_TYPE_STREAM) {
2587 chunk_appendf(buf, "%sstrm=%p [invalid type=%d(%s)]%c",
2588 pfx, s, s->obj_type, obj_type_name(&s->obj_type), eol);
2589 return;
2590 }
2591
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002592 si_f = &s->si[0];
2593 si_b = &s->si[1];
2594 req = &s->req;
2595 res = &s->res;
2596
2597 csf = objt_cs(si_f->end);
2598 cof = cs_conn(csf);
2599 acf = objt_appctx(si_f->end);
Willy Tarreau71e34c12019-07-17 15:07:06 +02002600 if (cof && cof->src && addr_to_str(cof->src, pn, sizeof(pn)) >= 0)
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002601 src = pn;
2602 else if (acf)
2603 src = acf->applet->name;
2604
2605 csb = objt_cs(si_b->end);
2606 cob = cs_conn(csb);
2607 acb = objt_appctx(si_b->end);
2608 srv = objt_server(s->target);
2609 if (srv)
2610 dst = srv->id;
2611 else if (acb)
2612 dst = acb->applet->name;
2613
Willy Tarreau5484d582019-05-22 09:33:03 +02002614 chunk_appendf(buf,
2615 "%sstrm=%p src=%s fe=%s be=%s dst=%s%c"
2616 "%srqf=%x rqa=%x rpf=%x rpa=%x sif=%s,%x sib=%s,%x%c"
2617 "%saf=%p,%u csf=%p,%x%c"
2618 "%sab=%p,%u csb=%p,%x%c"
2619 "%scof=%p,%x:%s(%p)/%s(%p)/%s(%d)%c"
2620 "%scob=%p,%x:%s(%p)/%s(%p)/%s(%d)%c"
2621 "",
2622 pfx, s, src, s->sess->fe->id, s->be->id, dst, eol,
2623 pfx, req->flags, req->analysers, res->flags, res->analysers,
2624 si_state_str(si_f->state), si_f->flags,
2625 si_state_str(si_b->state), si_b->flags, eol,
2626 pfx, acf, acf ? acf->st0 : 0, csf, csf ? csf->flags : 0, eol,
2627 pfx, acb, acb ? acb->st0 : 0, csb, csb ? csb->flags : 0, eol,
2628 pfx, cof, cof ? cof->flags : 0, conn_get_mux_name(cof), cof?cof->ctx:0, conn_get_xprt_name(cof),
2629 cof ? cof->xprt_ctx : 0, conn_get_ctrl_name(cof), cof ? cof->handle.fd : 0, eol,
2630 pfx, cob, cob ? cob->flags : 0, conn_get_mux_name(cob), cob?cob->ctx:0, conn_get_xprt_name(cob),
2631 cob ? cob->xprt_ctx : 0, conn_get_ctrl_name(cob), cob ? cob->handle.fd : 0, eol);
2632}
2633
2634/* dumps an error message for type <type> at ptr <ptr> related to stream <s>,
Willy Tarreaub106ce12019-05-22 08:57:01 +02002635 * having reached loop rate <rate>, then aborts hoping to retrieve a core.
Willy Tarreau5484d582019-05-22 09:33:03 +02002636 */
2637void stream_dump_and_crash(enum obj_type *obj, int rate)
2638{
2639 const struct stream *s;
Willy Tarreau5484d582019-05-22 09:33:03 +02002640 char *msg = NULL;
2641 const void *ptr;
2642
2643 ptr = s = objt_stream(obj);
2644 if (!s) {
2645 const struct appctx *appctx = objt_appctx(obj);
2646 if (!appctx)
2647 return;
2648 ptr = appctx;
2649 s = si_strm(appctx->owner);
2650 if (!s)
2651 return;
2652 }
2653
Willy Tarreau5484d582019-05-22 09:33:03 +02002654 chunk_reset(&trash);
2655 stream_dump(&trash, s, "", ' ');
Willy Tarreaub106ce12019-05-22 08:57:01 +02002656 memprintf(&msg,
2657 "A bogus %s [%p] is spinning at %d calls per second and refuses to die, "
2658 "aborting now! Please report this error to developers "
2659 "[%s]\n",
Willy Tarreau5484d582019-05-22 09:33:03 +02002660 obj_type_name(obj), ptr, rate, trash.area);
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002661
2662 ha_alert("%s", msg);
2663 send_log(NULL, LOG_EMERG, "%s", msg);
2664 abort();
2665}
2666
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002667/* Generates a unique ID based on the given <format>, stores it in the given <strm> and
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002668 * returns the unique ID.
2669
2670 * If this function fails to allocate memory IST_NULL is returned.
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002671 *
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002672 * If an ID is already stored within the stream nothing happens existing unique ID is
2673 * returned.
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002674 */
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002675struct ist stream_generate_unique_id(struct stream *strm, struct list *format)
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002676{
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002677 if (isttest(strm->unique_id)) {
2678 return strm->unique_id;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002679 }
2680 else {
2681 char *unique_id;
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002682 int length;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002683 if ((unique_id = pool_alloc(pool_head_uniqueid)) == NULL)
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002684 return IST_NULL;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002685
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002686 length = build_logline(strm, unique_id, UNIQUEID_LEN, format);
2687 strm->unique_id = ist2(unique_id, length);
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002688
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002689 return strm->unique_id;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002690 }
2691}
2692
Willy Tarreau8b22a712010-06-18 17:46:06 +02002693/************************************************************************/
2694/* All supported ACL keywords must be declared here. */
2695/************************************************************************/
2696
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02002697/* 0=OK, <0=Alert, >0=Warning */
2698static enum act_parse_ret stream_parse_use_service(const char **args, int *cur_arg,
2699 struct proxy *px, struct act_rule *rule,
2700 char **err)
2701{
2702 struct action_kw *kw;
2703
2704 /* Check if the service name exists. */
2705 if (*(args[*cur_arg]) == 0) {
2706 memprintf(err, "'%s' expects a service name.", args[0]);
Thierry FOURNIER337eae12015-11-26 19:48:04 +01002707 return ACT_RET_PRS_ERR;
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02002708 }
2709
2710 /* lookup for keyword corresponding to a service. */
2711 kw = action_lookup(&service_keywords, args[*cur_arg]);
2712 if (!kw) {
2713 memprintf(err, "'%s' unknown service name.", args[1]);
2714 return ACT_RET_PRS_ERR;
2715 }
2716 (*cur_arg)++;
2717
2718 /* executes specific rule parser. */
2719 rule->kw = kw;
2720 if (kw->parse((const char **)args, cur_arg, px, rule, err) == ACT_RET_PRS_ERR)
2721 return ACT_RET_PRS_ERR;
2722
2723 /* Register processing function. */
2724 rule->action_ptr = process_use_service;
2725 rule->action = ACT_CUSTOM;
2726
2727 return ACT_RET_PRS_OK;
2728}
2729
2730void service_keywords_register(struct action_kw_list *kw_list)
2731{
2732 LIST_ADDQ(&service_keywords, &kw_list->list);
2733}
2734
Willy Tarreau679bba12019-03-19 08:08:10 +01002735/* Lists the known services on <out> */
2736void list_services(FILE *out)
2737{
2738 struct action_kw_list *kw_list;
2739 int found = 0;
2740 int i;
2741
2742 fprintf(out, "Available services :");
2743 list_for_each_entry(kw_list, &service_keywords, list) {
2744 for (i = 0; kw_list->kw[i].kw != NULL; i++) {
2745 if (!found)
2746 fputc('\n', out);
2747 found = 1;
2748 fprintf(out, "\t%s\n", kw_list->kw[i].kw);
2749 }
2750 }
2751 if (!found)
2752 fprintf(out, " none\n");
2753}
William Lallemand4c5b4d52016-11-21 08:51:11 +01002754
2755/* This function dumps a complete stream state onto the stream interface's
2756 * read buffer. The stream has to be set in strm. It returns 0 if the output
2757 * buffer is full and it needs to be called again, otherwise non-zero. It is
2758 * designed to be called from stats_dump_strm_to_buffer() below.
2759 */
2760static int stats_dump_full_strm_to_buffer(struct stream_interface *si, struct stream *strm)
2761{
2762 struct appctx *appctx = __objt_appctx(si->end);
2763 struct tm tm;
2764 extern const char *monthname[12];
2765 char pn[INET6_ADDRSTRLEN];
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002766 struct conn_stream *cs;
William Lallemand4c5b4d52016-11-21 08:51:11 +01002767 struct connection *conn;
2768 struct appctx *tmpctx;
2769
2770 chunk_reset(&trash);
2771
2772 if (appctx->ctx.sess.section > 0 && appctx->ctx.sess.uid != strm->uniq_id) {
2773 /* stream changed, no need to go any further */
2774 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
Willy Tarreaue6e52362019-01-04 17:42:57 +01002775 if (ci_putchk(si_ic(si), &trash) == -1)
2776 goto full;
2777 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01002778 }
2779
2780 switch (appctx->ctx.sess.section) {
2781 case 0: /* main status of the stream */
2782 appctx->ctx.sess.uid = strm->uniq_id;
2783 appctx->ctx.sess.section = 1;
2784 /* fall through */
2785
2786 case 1:
2787 get_localtime(strm->logs.accept_date.tv_sec, &tm);
2788 chunk_appendf(&trash,
2789 "%p: [%02d/%s/%04d:%02d:%02d:%02d.%06d] id=%u proto=%s",
2790 strm,
2791 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
2792 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(strm->logs.accept_date.tv_usec),
2793 strm->uniq_id,
2794 strm_li(strm) ? strm_li(strm)->proto->name : "?");
2795
2796 conn = objt_conn(strm_orig(strm));
Willy Tarreau71e34c12019-07-17 15:07:06 +02002797 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002798 case AF_INET:
2799 case AF_INET6:
2800 chunk_appendf(&trash, " source=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002801 pn, get_host_port(conn->src));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002802 break;
2803 case AF_UNIX:
2804 chunk_appendf(&trash, " source=unix:%d\n", strm_li(strm)->luid);
2805 break;
2806 default:
2807 /* no more information to print right now */
2808 chunk_appendf(&trash, "\n");
2809 break;
2810 }
2811
2812 chunk_appendf(&trash,
Willy Tarreauadf7a152019-01-07 10:10:07 +01002813 " flags=0x%x, conn_retries=%d, srv_conn=%p, pend_pos=%p waiting=%d\n",
2814 strm->flags, strm->si[1].conn_retries, strm->srv_conn, strm->pend_pos,
Willy Tarreau21046592020-02-26 10:39:36 +01002815 MT_LIST_ADDED(&strm->buffer_wait.list));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002816
2817 chunk_appendf(&trash,
2818 " frontend=%s (id=%u mode=%s), listener=%s (id=%u)",
2819 strm_fe(strm)->id, strm_fe(strm)->uuid, strm_fe(strm)->mode ? "http" : "tcp",
2820 strm_li(strm) ? strm_li(strm)->name ? strm_li(strm)->name : "?" : "?",
2821 strm_li(strm) ? strm_li(strm)->luid : 0);
2822
Willy Tarreau71e34c12019-07-17 15:07:06 +02002823 switch (conn && conn_get_dst(conn) ? addr_to_str(conn->dst, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002824 case AF_INET:
2825 case AF_INET6:
2826 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002827 pn, get_host_port(conn->dst));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002828 break;
2829 case AF_UNIX:
2830 chunk_appendf(&trash, " addr=unix:%d\n", strm_li(strm)->luid);
2831 break;
2832 default:
2833 /* no more information to print right now */
2834 chunk_appendf(&trash, "\n");
2835 break;
2836 }
2837
2838 if (strm->be->cap & PR_CAP_BE)
2839 chunk_appendf(&trash,
2840 " backend=%s (id=%u mode=%s)",
2841 strm->be->id,
2842 strm->be->uuid, strm->be->mode ? "http" : "tcp");
2843 else
2844 chunk_appendf(&trash, " backend=<NONE> (id=-1 mode=-)");
2845
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002846 cs = objt_cs(strm->si[1].end);
2847 conn = cs_conn(cs);
2848
Willy Tarreau71e34c12019-07-17 15:07:06 +02002849 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002850 case AF_INET:
2851 case AF_INET6:
2852 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002853 pn, get_host_port(conn->src));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002854 break;
2855 case AF_UNIX:
2856 chunk_appendf(&trash, " addr=unix\n");
2857 break;
2858 default:
2859 /* no more information to print right now */
2860 chunk_appendf(&trash, "\n");
2861 break;
2862 }
2863
2864 if (strm->be->cap & PR_CAP_BE)
2865 chunk_appendf(&trash,
2866 " server=%s (id=%u)",
2867 objt_server(strm->target) ? objt_server(strm->target)->id : "<none>",
2868 objt_server(strm->target) ? objt_server(strm->target)->puid : 0);
2869 else
2870 chunk_appendf(&trash, " server=<NONE> (id=-1)");
2871
Willy Tarreau71e34c12019-07-17 15:07:06 +02002872 switch (conn && conn_get_dst(conn) ? addr_to_str(conn->dst, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002873 case AF_INET:
2874 case AF_INET6:
2875 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002876 pn, get_host_port(conn->dst));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002877 break;
2878 case AF_UNIX:
2879 chunk_appendf(&trash, " addr=unix\n");
2880 break;
2881 default:
2882 /* no more information to print right now */
2883 chunk_appendf(&trash, "\n");
2884 break;
2885 }
2886
2887 chunk_appendf(&trash,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02002888 " task=%p (state=0x%02x nice=%d calls=%u rate=%u exp=%s tmask=0x%lx%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002889 strm->task,
2890 strm->task->state,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02002891 strm->task->nice, strm->task->calls, read_freq_ctr(&strm->call_rate),
William Lallemand4c5b4d52016-11-21 08:51:11 +01002892 strm->task->expire ?
2893 tick_is_expired(strm->task->expire, now_ms) ? "<PAST>" :
2894 human_time(TICKS_TO_MS(strm->task->expire - now_ms),
2895 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Fauletf0205062017-11-15 20:56:43 +01002896 strm->task->thread_mask,
William Lallemand4c5b4d52016-11-21 08:51:11 +01002897 task_in_rq(strm->task) ? ", running" : "");
2898
2899 chunk_appendf(&trash,
2900 " age=%s)\n",
2901 human_time(now.tv_sec - strm->logs.accept_date.tv_sec, 1));
2902
2903 if (strm->txn)
2904 chunk_appendf(&trash,
Christopher Fauletbcac7862019-07-17 10:46:50 +02002905 " 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 +01002906 strm->txn, strm->txn->flags, strm->txn->meth, strm->txn->status,
Willy Tarreau7778b592019-01-07 10:38:10 +01002907 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 +02002908 strm->txn->req.flags, strm->txn->rsp.flags);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002909
2910 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01002911 " 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 +01002912 &strm->si[0],
2913 si_state_str(strm->si[0].state),
2914 strm->si[0].flags,
2915 obj_type_name(strm->si[0].end),
2916 obj_base_ptr(strm->si[0].end),
2917 strm->si[0].exp ?
2918 tick_is_expired(strm->si[0].exp, now_ms) ? "<PAST>" :
2919 human_time(TICKS_TO_MS(strm->si[0].exp - now_ms),
2920 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01002921 strm->si[0].err_type, strm->si[0].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002922
2923 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01002924 " 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 +01002925 &strm->si[1],
2926 si_state_str(strm->si[1].state),
2927 strm->si[1].flags,
2928 obj_type_name(strm->si[1].end),
2929 obj_base_ptr(strm->si[1].end),
2930 strm->si[1].exp ?
2931 tick_is_expired(strm->si[1].exp, now_ms) ? "<PAST>" :
2932 human_time(TICKS_TO_MS(strm->si[1].exp - now_ms),
2933 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01002934 strm->si[1].err_type, strm->si[1].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002935
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002936 if ((cs = objt_cs(strm->si[0].end)) != NULL) {
2937 conn = cs->conn;
2938
William Lallemand4c5b4d52016-11-21 08:51:11 +01002939 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02002940 " co0=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002941 conn,
2942 conn_get_ctrl_name(conn),
2943 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02002944 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002945 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01002946 obj_type_name(conn->target),
2947 obj_base_ptr(conn->target));
2948
2949 chunk_appendf(&trash,
Willy Tarreau76913d32019-08-30 14:33:11 +02002950 " flags=0x%08x fd=%d fd.state=%02x updt=%d fd.tmask=0x%lx\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002951 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02002952 conn->handle.fd,
2953 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01002954 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01002955 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01002956
2957 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002958 }
2959 else if ((tmpctx = objt_appctx(strm->si[0].end)) != NULL) {
2960 chunk_appendf(&trash,
Willy Tarreau22d63a22019-04-24 08:41:29 +02002961 " 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 +01002962 tmpctx,
2963 tmpctx->st0,
2964 tmpctx->st1,
2965 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01002966 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02002967 tmpctx->thread_mask,
Willy Tarreau22d63a22019-04-24 08:41:29 +02002968 tmpctx->t->nice, tmpctx->t->calls, read_freq_ctr(&tmpctx->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02002969 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002970 }
2971
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002972 if ((cs = objt_cs(strm->si[1].end)) != NULL) {
2973 conn = cs->conn;
2974
William Lallemand4c5b4d52016-11-21 08:51:11 +01002975 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02002976 " co1=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002977 conn,
2978 conn_get_ctrl_name(conn),
2979 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02002980 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002981 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01002982 obj_type_name(conn->target),
2983 obj_base_ptr(conn->target));
2984
2985 chunk_appendf(&trash,
Willy Tarreau76913d32019-08-30 14:33:11 +02002986 " flags=0x%08x fd=%d fd.state=%02x updt=%d fd.tmask=0x%lx\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002987 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02002988 conn->handle.fd,
2989 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01002990 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01002991 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01002992
2993 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002994 }
2995 else if ((tmpctx = objt_appctx(strm->si[1].end)) != NULL) {
2996 chunk_appendf(&trash,
Willy Tarreau22d63a22019-04-24 08:41:29 +02002997 " 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 +01002998 tmpctx,
2999 tmpctx->st0,
3000 tmpctx->st1,
3001 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01003002 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02003003 tmpctx->thread_mask,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003004 tmpctx->t->nice, tmpctx->t->calls, read_freq_ctr(&tmpctx->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003005 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003006 }
3007
3008 chunk_appendf(&trash,
3009 " req=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
3010 " an_exp=%s",
3011 &strm->req,
3012 strm->req.flags, strm->req.analysers,
3013 strm->req.pipe ? strm->req.pipe->data : 0,
3014 strm->req.to_forward, strm->req.total,
3015 strm->req.analyse_exp ?
3016 human_time(TICKS_TO_MS(strm->req.analyse_exp - now_ms),
3017 TICKS_TO_MS(1000)) : "<NEVER>");
3018
3019 chunk_appendf(&trash,
3020 " rex=%s",
3021 strm->req.rex ?
3022 human_time(TICKS_TO_MS(strm->req.rex - now_ms),
3023 TICKS_TO_MS(1000)) : "<NEVER>");
3024
3025 chunk_appendf(&trash,
3026 " wex=%s\n"
Christopher Fauletbcac7862019-07-17 10:46:50 +02003027 " buf=%p data=%p o=%u p=%u i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003028 strm->req.wex ?
3029 human_time(TICKS_TO_MS(strm->req.wex - now_ms),
3030 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003031 &strm->req.buf,
3032 b_orig(&strm->req.buf), (unsigned int)co_data(&strm->req),
Christopher Fauletbcac7862019-07-17 10:46:50 +02003033 (unsigned int)ci_head_ofs(&strm->req), (unsigned int)ci_data(&strm->req),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003034 (unsigned int)strm->req.buf.size);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003035
Christopher Fauletb9af8812019-01-04 14:30:44 +01003036 if (IS_HTX_STRM(strm)) {
3037 struct htx *htx = htxbuf(&strm->req.buf);
3038
3039 chunk_appendf(&trash,
Willy Tarreaub84e67f2019-01-07 10:01:34 +01003040 " htx=%p flags=0x%x size=%u data=%u used=%u wrap=%s extra=%llu\n",
Christopher Faulet192c6a22019-06-11 16:32:24 +02003041 htx, htx->flags, htx->size, htx->data, htx_nbblks(htx),
Christopher Faulet28f29c72019-04-30 17:55:45 +02003042 (htx->tail >= htx->head) ? "NO" : "YES",
Christopher Fauletb9af8812019-01-04 14:30:44 +01003043 (unsigned long long)htx->extra);
3044 }
3045
William Lallemand4c5b4d52016-11-21 08:51:11 +01003046 chunk_appendf(&trash,
3047 " res=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
3048 " an_exp=%s",
3049 &strm->res,
3050 strm->res.flags, strm->res.analysers,
3051 strm->res.pipe ? strm->res.pipe->data : 0,
3052 strm->res.to_forward, strm->res.total,
3053 strm->res.analyse_exp ?
3054 human_time(TICKS_TO_MS(strm->res.analyse_exp - now_ms),
3055 TICKS_TO_MS(1000)) : "<NEVER>");
3056
3057 chunk_appendf(&trash,
3058 " rex=%s",
3059 strm->res.rex ?
3060 human_time(TICKS_TO_MS(strm->res.rex - now_ms),
3061 TICKS_TO_MS(1000)) : "<NEVER>");
3062
3063 chunk_appendf(&trash,
3064 " wex=%s\n"
Christopher Fauletbcac7862019-07-17 10:46:50 +02003065 " buf=%p data=%p o=%u p=%u i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003066 strm->res.wex ?
3067 human_time(TICKS_TO_MS(strm->res.wex - now_ms),
3068 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003069 &strm->res.buf,
3070 b_orig(&strm->res.buf), (unsigned int)co_data(&strm->res),
Christopher Fauletbcac7862019-07-17 10:46:50 +02003071 (unsigned int)ci_head_ofs(&strm->res), (unsigned int)ci_data(&strm->res),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003072 (unsigned int)strm->res.buf.size);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003073
Christopher Fauletb9af8812019-01-04 14:30:44 +01003074 if (IS_HTX_STRM(strm)) {
3075 struct htx *htx = htxbuf(&strm->res.buf);
3076
3077 chunk_appendf(&trash,
3078 " htx=%p flags=0x%x size=%u data=%u used=%u wrap=%s extra=%llu\n",
Christopher Faulet192c6a22019-06-11 16:32:24 +02003079 htx, htx->flags, htx->size, htx->data, htx_nbblks(htx),
Christopher Faulet28f29c72019-04-30 17:55:45 +02003080 (htx->tail >= htx->head) ? "NO" : "YES",
Christopher Fauletb9af8812019-01-04 14:30:44 +01003081 (unsigned long long)htx->extra);
3082 }
3083
Willy Tarreaue6e52362019-01-04 17:42:57 +01003084 if (ci_putchk(si_ic(si), &trash) == -1)
3085 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003086
3087 /* use other states to dump the contents */
3088 }
3089 /* end of dump */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003090 done:
William Lallemand4c5b4d52016-11-21 08:51:11 +01003091 appctx->ctx.sess.uid = 0;
3092 appctx->ctx.sess.section = 0;
3093 return 1;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003094 full:
3095 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003096}
3097
3098
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003099static int cli_parse_show_sess(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemand4c5b4d52016-11-21 08:51:11 +01003100{
William Lallemand4c5b4d52016-11-21 08:51:11 +01003101 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
3102 return 1;
3103
3104 if (*args[2] && strcmp(args[2], "all") == 0)
3105 appctx->ctx.sess.target = (void *)-1;
3106 else if (*args[2])
3107 appctx->ctx.sess.target = (void *)strtoul(args[2], NULL, 0);
3108 else
3109 appctx->ctx.sess.target = NULL;
3110 appctx->ctx.sess.section = 0; /* start with stream status */
3111 appctx->ctx.sess.pos = 0;
3112
3113 return 0;
3114}
3115
3116/* This function dumps all streams' states onto the stream interface's
3117 * read buffer. It returns 0 if the output buffer is full and it needs
Willy Tarreaue6e52362019-01-04 17:42:57 +01003118 * to be called again, otherwise non-zero. It proceeds in an isolated
3119 * thread so there is no thread safety issue here.
William Lallemand4c5b4d52016-11-21 08:51:11 +01003120 */
3121static int cli_io_handler_dump_sess(struct appctx *appctx)
3122{
3123 struct stream_interface *si = appctx->owner;
3124 struct connection *conn;
3125
Willy Tarreaue6e52362019-01-04 17:42:57 +01003126 thread_isolate();
3127
William Lallemand4c5b4d52016-11-21 08:51:11 +01003128 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW))) {
3129 /* If we're forced to shut down, we might have to remove our
3130 * reference to the last stream being dumped.
3131 */
3132 if (appctx->st2 == STAT_ST_LIST) {
3133 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users)) {
3134 LIST_DEL(&appctx->ctx.sess.bref.users);
3135 LIST_INIT(&appctx->ctx.sess.bref.users);
3136 }
3137 }
Willy Tarreaue6e52362019-01-04 17:42:57 +01003138 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003139 }
3140
3141 chunk_reset(&trash);
3142
3143 switch (appctx->st2) {
3144 case STAT_ST_INIT:
3145 /* the function had not been called yet, let's prepare the
3146 * buffer for a response. We initialize the current stream
3147 * pointer to the first in the global list. When a target
3148 * stream is being destroyed, it is responsible for updating
3149 * this pointer. We know we have reached the end when this
3150 * pointer points back to the head of the streams list.
3151 */
3152 LIST_INIT(&appctx->ctx.sess.bref.users);
3153 appctx->ctx.sess.bref.ref = streams.n;
3154 appctx->st2 = STAT_ST_LIST;
3155 /* fall through */
3156
3157 case STAT_ST_LIST:
3158 /* first, let's detach the back-ref from a possible previous stream */
3159 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users)) {
3160 LIST_DEL(&appctx->ctx.sess.bref.users);
3161 LIST_INIT(&appctx->ctx.sess.bref.users);
3162 }
3163
3164 /* and start from where we stopped */
3165 while (appctx->ctx.sess.bref.ref != &streams) {
3166 char pn[INET6_ADDRSTRLEN];
3167 struct stream *curr_strm;
3168
3169 curr_strm = LIST_ELEM(appctx->ctx.sess.bref.ref, struct stream *, list);
3170
3171 if (appctx->ctx.sess.target) {
3172 if (appctx->ctx.sess.target != (void *)-1 && appctx->ctx.sess.target != curr_strm)
3173 goto next_sess;
3174
3175 LIST_ADDQ(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
3176 /* call the proper dump() function and return if we're missing space */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003177 if (!stats_dump_full_strm_to_buffer(si, curr_strm))
3178 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003179
3180 /* stream dump complete */
3181 LIST_DEL(&appctx->ctx.sess.bref.users);
3182 LIST_INIT(&appctx->ctx.sess.bref.users);
3183 if (appctx->ctx.sess.target != (void *)-1) {
3184 appctx->ctx.sess.target = NULL;
3185 break;
3186 }
3187 else
3188 goto next_sess;
3189 }
3190
3191 chunk_appendf(&trash,
3192 "%p: proto=%s",
3193 curr_strm,
3194 strm_li(curr_strm) ? strm_li(curr_strm)->proto->name : "?");
3195
3196 conn = objt_conn(strm_orig(curr_strm));
Willy Tarreau71e34c12019-07-17 15:07:06 +02003197 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003198 case AF_INET:
3199 case AF_INET6:
3200 chunk_appendf(&trash,
3201 " src=%s:%d fe=%s be=%s srv=%s",
3202 pn,
Willy Tarreau71e34c12019-07-17 15:07:06 +02003203 get_host_port(conn->src),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003204 strm_fe(curr_strm)->id,
3205 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
3206 objt_server(curr_strm->target) ? objt_server(curr_strm->target)->id : "<none>"
3207 );
3208 break;
3209 case AF_UNIX:
3210 chunk_appendf(&trash,
3211 " src=unix:%d fe=%s be=%s srv=%s",
3212 strm_li(curr_strm)->luid,
3213 strm_fe(curr_strm)->id,
3214 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
3215 objt_server(curr_strm->target) ? objt_server(curr_strm->target)->id : "<none>"
3216 );
3217 break;
3218 }
3219
3220 chunk_appendf(&trash,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003221 " ts=%02x age=%s calls=%u rate=%u cpu=%llu lat=%llu",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003222 curr_strm->task->state,
3223 human_time(now.tv_sec - curr_strm->logs.tv_accept.tv_sec, 1),
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003224 curr_strm->task->calls, read_freq_ctr(&curr_strm->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003225 (unsigned long long)curr_strm->task->cpu_time, (unsigned long long)curr_strm->task->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003226
3227 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003228 " rq[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003229 curr_strm->req.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003230 (unsigned int)ci_data(&curr_strm->req),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003231 curr_strm->req.analysers,
3232 curr_strm->req.rex ?
3233 human_time(TICKS_TO_MS(curr_strm->req.rex - now_ms),
3234 TICKS_TO_MS(1000)) : "");
3235
3236 chunk_appendf(&trash,
3237 ",wx=%s",
3238 curr_strm->req.wex ?
3239 human_time(TICKS_TO_MS(curr_strm->req.wex - now_ms),
3240 TICKS_TO_MS(1000)) : "");
3241
3242 chunk_appendf(&trash,
3243 ",ax=%s]",
3244 curr_strm->req.analyse_exp ?
3245 human_time(TICKS_TO_MS(curr_strm->req.analyse_exp - now_ms),
3246 TICKS_TO_MS(1000)) : "");
3247
3248 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003249 " rp[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003250 curr_strm->res.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003251 (unsigned int)ci_data(&curr_strm->res),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003252 curr_strm->res.analysers,
3253 curr_strm->res.rex ?
3254 human_time(TICKS_TO_MS(curr_strm->res.rex - now_ms),
3255 TICKS_TO_MS(1000)) : "");
3256
3257 chunk_appendf(&trash,
3258 ",wx=%s",
3259 curr_strm->res.wex ?
3260 human_time(TICKS_TO_MS(curr_strm->res.wex - now_ms),
3261 TICKS_TO_MS(1000)) : "");
3262
3263 chunk_appendf(&trash,
3264 ",ax=%s]",
3265 curr_strm->res.analyse_exp ?
3266 human_time(TICKS_TO_MS(curr_strm->res.analyse_exp - now_ms),
3267 TICKS_TO_MS(1000)) : "");
3268
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003269 conn = cs_conn(objt_cs(curr_strm->si[0].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003270 chunk_appendf(&trash,
3271 " s0=[%d,%1xh,fd=%d,ex=%s]",
3272 curr_strm->si[0].state,
3273 curr_strm->si[0].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003274 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003275 curr_strm->si[0].exp ?
3276 human_time(TICKS_TO_MS(curr_strm->si[0].exp - now_ms),
3277 TICKS_TO_MS(1000)) : "");
3278
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003279 conn = cs_conn(objt_cs(curr_strm->si[1].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003280 chunk_appendf(&trash,
3281 " s1=[%d,%1xh,fd=%d,ex=%s]",
3282 curr_strm->si[1].state,
3283 curr_strm->si[1].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003284 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003285 curr_strm->si[1].exp ?
3286 human_time(TICKS_TO_MS(curr_strm->si[1].exp - now_ms),
3287 TICKS_TO_MS(1000)) : "");
3288
3289 chunk_appendf(&trash,
3290 " exp=%s",
3291 curr_strm->task->expire ?
3292 human_time(TICKS_TO_MS(curr_strm->task->expire - now_ms),
3293 TICKS_TO_MS(1000)) : "");
3294 if (task_in_rq(curr_strm->task))
3295 chunk_appendf(&trash, " run(nice=%d)", curr_strm->task->nice);
3296
3297 chunk_appendf(&trash, "\n");
3298
Willy Tarreau06d80a92017-10-19 14:32:15 +02003299 if (ci_putchk(si_ic(si), &trash) == -1) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003300 /* let's try again later from this stream. We add ourselves into
3301 * this stream's users so that it can remove us upon termination.
3302 */
William Lallemand4c5b4d52016-11-21 08:51:11 +01003303 LIST_ADDQ(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
Willy Tarreaue6e52362019-01-04 17:42:57 +01003304 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003305 }
3306
3307 next_sess:
3308 appctx->ctx.sess.bref.ref = curr_strm->list.n;
3309 }
3310
3311 if (appctx->ctx.sess.target && appctx->ctx.sess.target != (void *)-1) {
3312 /* specified stream not found */
3313 if (appctx->ctx.sess.section > 0)
3314 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
3315 else
3316 chunk_appendf(&trash, "Session not found.\n");
3317
Willy Tarreaue6e52362019-01-04 17:42:57 +01003318 if (ci_putchk(si_ic(si), &trash) == -1)
3319 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003320
3321 appctx->ctx.sess.target = NULL;
3322 appctx->ctx.sess.uid = 0;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003323 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003324 }
William Lallemand4c5b4d52016-11-21 08:51:11 +01003325 /* fall through */
3326
3327 default:
3328 appctx->st2 = STAT_ST_FIN;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003329 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003330 }
Willy Tarreaue6e52362019-01-04 17:42:57 +01003331 done:
3332 thread_release();
3333 return 1;
3334 full:
3335 thread_release();
3336 si_rx_room_blk(si);
3337 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003338}
3339
3340static void cli_release_show_sess(struct appctx *appctx)
3341{
3342 if (appctx->st2 == STAT_ST_LIST) {
Willy Tarreau7ce3f092017-11-10 16:24:41 +01003343 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003344 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users))
3345 LIST_DEL(&appctx->ctx.sess.bref.users);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003346 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003347 }
3348}
3349
Willy Tarreau61b65212016-11-24 11:09:25 +01003350/* Parses the "shutdown session" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003351static int cli_parse_shutdown_session(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau61b65212016-11-24 11:09:25 +01003352{
3353 struct stream *strm, *ptr;
3354
3355 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3356 return 1;
3357
Willy Tarreau9d008692019-08-09 11:21:01 +02003358 if (!*args[2])
3359 return cli_err(appctx, "Session pointer expected (use 'show sess').\n");
Willy Tarreau61b65212016-11-24 11:09:25 +01003360
3361 ptr = (void *)strtoul(args[2], NULL, 0);
3362
3363 /* first, look for the requested stream in the stream table */
3364 list_for_each_entry(strm, &streams, list) {
3365 if (strm == ptr)
3366 break;
3367 }
3368
3369 /* do we have the stream ? */
Willy Tarreau9d008692019-08-09 11:21:01 +02003370 if (strm != ptr)
3371 return cli_err(appctx, "No such session (use 'show sess').\n");
Willy Tarreau61b65212016-11-24 11:09:25 +01003372
3373 stream_shutdown(strm, SF_ERR_KILLED);
3374 return 1;
3375}
3376
Willy Tarreau4e46b622016-11-23 16:50:48 +01003377/* Parses the "shutdown session server" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003378static int cli_parse_shutdown_sessions_server(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau4e46b622016-11-23 16:50:48 +01003379{
3380 struct server *sv;
Willy Tarreau4e46b622016-11-23 16:50:48 +01003381
3382 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3383 return 1;
3384
3385 sv = cli_find_server(appctx, args[3]);
3386 if (!sv)
3387 return 1;
3388
3389 /* kill all the stream that are on this server */
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003390 HA_SPIN_LOCK(SERVER_LOCK, &sv->lock);
Willy Tarreaud9e26a72019-11-14 16:37:16 +01003391 srv_shutdown_streams(sv, SF_ERR_KILLED);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003392 HA_SPIN_UNLOCK(SERVER_LOCK, &sv->lock);
Willy Tarreau4e46b622016-11-23 16:50:48 +01003393 return 1;
3394}
3395
William Lallemand4c5b4d52016-11-21 08:51:11 +01003396/* register cli keywords */
3397static struct cli_kw_list cli_kws = {{ },{
3398 { { "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 +01003399 { { "shutdown", "session", NULL }, "shutdown session : kill a specific session", cli_parse_shutdown_session, NULL, NULL },
Willy Tarreau4e46b622016-11-23 16:50:48 +01003400 { { "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 +01003401 {{},}
3402}};
3403
Willy Tarreau0108d902018-11-25 19:14:37 +01003404INITCALL1(STG_REGISTER, cli_register_kw, &cli_kws);
3405
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003406/* main configuration keyword registration. */
3407static struct action_kw_list stream_tcp_keywords = { ILH, {
3408 { "use-service", stream_parse_use_service },
3409 { /* END */ }
3410}};
3411
Willy Tarreau0108d902018-11-25 19:14:37 +01003412INITCALL1(STG_REGISTER, tcp_req_cont_keywords_register, &stream_tcp_keywords);
3413
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003414static struct action_kw_list stream_http_keywords = { ILH, {
3415 { "use-service", stream_parse_use_service },
3416 { /* END */ }
3417}};
3418
Willy Tarreau0108d902018-11-25 19:14:37 +01003419INITCALL1(STG_REGISTER, http_req_keywords_register, &stream_http_keywords);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003420
Willy Tarreaubaaee002006-06-26 02:48:02 +02003421/*
3422 * Local variables:
3423 * c-indent-level: 8
3424 * c-basic-offset: 8
3425 * End:
3426 */