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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
Willy Tarreaua264d962020-06-04 22:29:18 +020017#include <import/ebistree.h>
18
Willy Tarreaudcc048a2020-06-04 19:11:43 +020019#include <haproxy/acl.h>
Willy Tarreau122eba92020-06-04 10:15:32 +020020#include <haproxy/action.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020021#include <haproxy/activity.h>
22#include <haproxy/api.h>
Willy Tarreau3f0f82e2020-06-04 19:42:41 +020023#include <haproxy/applet.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020024#include <haproxy/arg.h>
Willy Tarreau49801602020-06-04 22:50:02 +020025#include <haproxy/backend.h>
Willy Tarreau278161c2020-06-04 11:18:28 +020026#include <haproxy/capture.h>
Willy Tarreau6be78492020-06-05 00:00:29 +020027#include <haproxy/cfgparse.h>
Willy Tarreauf1d32c42020-06-04 21:07:02 +020028#include <haproxy/channel.h>
Willy Tarreau4aa573d2020-06-04 18:21:56 +020029#include <haproxy/check.h>
Willy Tarreau83487a82020-06-04 20:19:54 +020030#include <haproxy/cli.h>
Willy Tarreau7ea393d2020-06-04 18:02:10 +020031#include <haproxy/connection.h>
Willy Tarreau3afc4c42020-06-03 18:23:19 +020032#include <haproxy/dict.h>
Willy Tarreaueb92deb2020-06-04 10:53:16 +020033#include <haproxy/dns.h>
Willy Tarreau2741c8c2020-06-02 11:28:02 +020034#include <haproxy/dynbuf.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020035#include <haproxy/fd.h>
Willy Tarreauc7babd82020-06-04 21:29:29 +020036#include <haproxy/filters.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020037#include <haproxy/freq_ctr.h>
Willy Tarreau762d7a52020-06-04 11:23:07 +020038#include <haproxy/frontend.h>
Willy Tarreauf268ee82020-06-04 17:05:57 +020039#include <haproxy/global.h>
Willy Tarreau86416052020-06-04 09:20:54 +020040#include <haproxy/hlua.h>
Willy Tarreauc2b1ff02020-06-04 21:21:03 +020041#include <haproxy/http_ana.h>
Willy Tarreauc761f842020-06-04 11:40:28 +020042#include <haproxy/http_rules.h>
Willy Tarreau16f958c2020-06-03 08:44:35 +020043#include <haproxy/htx.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020044#include <haproxy/istbuf.h>
Willy Tarreauaeed4a82020-06-04 22:01:04 +020045#include <haproxy/log.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020046#include <haproxy/pipe.h>
Willy Tarreaud0ef4392020-06-02 09:38:52 +020047#include <haproxy/pool.h>
Willy Tarreaua264d962020-06-04 22:29:18 +020048#include <haproxy/proxy.h>
Willy Tarreaua55c4542020-06-04 22:59:39 +020049#include <haproxy/queue.h>
Willy Tarreau1e56f922020-06-04 23:20:13 +020050#include <haproxy/server.h>
Willy Tarreau48d25b32020-06-04 18:58:52 +020051#include <haproxy/session.h>
Willy Tarreau2eec9b52020-06-04 19:58:55 +020052#include <haproxy/stats-t.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020053#include <haproxy/stick_table.h>
Willy Tarreaudfd3de82020-06-04 23:46:14 +020054#include <haproxy/stream.h>
Willy Tarreau5e539c92020-06-04 20:45:39 +020055#include <haproxy/stream_interface.h>
Willy Tarreaucea0e1b2020-06-04 17:25:40 +020056#include <haproxy/task.h>
Willy Tarreau8b550af2020-06-04 17:42:48 +020057#include <haproxy/tcp_rules.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020058#include <haproxy/thread.h>
Willy Tarreaudfd3de82020-06-04 23:46:14 +020059#include <haproxy/trace.h>
Willy Tarreaua1718922020-06-04 16:25:31 +020060#include <haproxy/vars.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020061
Willy Tarreaubaaee002006-06-26 02:48:02 +020062
Willy Tarreau8ceae722018-11-26 11:58:30 +010063DECLARE_POOL(pool_head_stream, "stream", sizeof(struct stream));
Tim Duesterhus127a74d2020-02-28 15:13:33 +010064DECLARE_POOL(pool_head_uniqueid, "uniqueid", UNIQUEID_LEN);
Willy Tarreau8ceae722018-11-26 11:58:30 +010065
Willy Tarreaub6b3df32018-11-26 16:31:20 +010066struct list streams = LIST_HEAD_INIT(streams);
Willy Tarreau86abe442018-11-25 20:12:18 +010067__decl_spinlock(streams_lock);
Willy Tarreaubaaee002006-06-26 02:48:02 +020068
Thierry FOURNIER5a363e72015-09-27 19:29:33 +020069/* List of all use-service keywords. */
70static struct list service_keywords = LIST_HEAD_INIT(service_keywords);
71
Willy Tarreau5790eb02017-08-28 17:18:36 +020072
Christopher Fauleteea8fc72019-11-05 16:18:10 +010073/* trace source and events */
74static void strm_trace(enum trace_level level, uint64_t mask,
75 const struct trace_source *src,
76 const struct ist where, const struct ist func,
77 const void *a1, const void *a2, const void *a3, const void *a4);
78
79/* The event representation is split like this :
80 * strm - stream
81 * si - stream interface
82 * http - http analyzis
83 * tcp - tcp analyzis
84 *
85 * STRM_EV_* macros are defined in <proto/stream.h>
86 */
87static const struct trace_event strm_trace_events[] = {
88 { .mask = STRM_EV_STRM_NEW, .name = "strm_new", .desc = "new stream" },
89 { .mask = STRM_EV_STRM_FREE, .name = "strm_free", .desc = "release stream" },
90 { .mask = STRM_EV_STRM_ERR, .name = "strm_err", .desc = "error during stream processing" },
91 { .mask = STRM_EV_STRM_ANA, .name = "strm_ana", .desc = "stream analyzers" },
92 { .mask = STRM_EV_STRM_PROC, .name = "strm_proc", .desc = "stream processing" },
93
94 { .mask = STRM_EV_SI_ST, .name = "si_state", .desc = "processing stream-interface states" },
95
96 { .mask = STRM_EV_HTTP_ANA, .name = "http_ana", .desc = "HTTP analyzers" },
97 { .mask = STRM_EV_HTTP_ERR, .name = "http_err", .desc = "error during HTTP analyzis" },
98
99 { .mask = STRM_EV_TCP_ANA, .name = "tcp_ana", .desc = "TCP analyzers" },
100 { .mask = STRM_EV_TCP_ERR, .name = "tcp_err", .desc = "error during TCP analyzis" },
101 {}
102};
103
104static const struct name_desc strm_trace_lockon_args[4] = {
105 /* arg1 */ { /* already used by the stream */ },
106 /* arg2 */ { },
107 /* arg3 */ { },
108 /* arg4 */ { }
109};
110
111static const struct name_desc strm_trace_decoding[] = {
112#define STRM_VERB_CLEAN 1
113 { .name="clean", .desc="only user-friendly stuff, generally suitable for level \"user\"" },
114#define STRM_VERB_MINIMAL 2
115 { .name="minimal", .desc="report info on stream and stream-interfaces" },
116#define STRM_VERB_SIMPLE 3
117 { .name="simple", .desc="add info on request and response channels" },
118#define STRM_VERB_ADVANCED 4
119 { .name="advanced", .desc="add info on channel's buffer for data and developer levels only" },
120#define STRM_VERB_COMPLETE 5
121 { .name="complete", .desc="add info on channel's buffer" },
122 { /* end */ }
123};
124
125struct trace_source trace_strm = {
126 .name = IST("stream"),
127 .desc = "Applicative stream",
128 .arg_def = TRC_ARG1_STRM, // TRACE()'s first argument is always a stream
129 .default_cb = strm_trace,
130 .known_events = strm_trace_events,
131 .lockon_args = strm_trace_lockon_args,
132 .decoding = strm_trace_decoding,
133 .report_events = ~0, // report everything by default
134};
135
136#define TRACE_SOURCE &trace_strm
137INITCALL1(STG_REGISTER, trace_register_source, TRACE_SOURCE);
138
139/* the stream traces always expect that arg1, if non-null, is of a stream (from
140 * which we can derive everything), that arg2, if non-null, is an http
141 * transaction, that arg3, if non-null, is an http message.
142 */
143static void strm_trace(enum trace_level level, uint64_t mask, const struct trace_source *src,
144 const struct ist where, const struct ist func,
145 const void *a1, const void *a2, const void *a3, const void *a4)
146{
147 const struct stream *s = a1;
148 const struct http_txn *txn = a2;
149 const struct http_msg *msg = a3;
150 struct task *task;
151 const struct stream_interface *si_f, *si_b;
152 const struct channel *req, *res;
153 struct htx *htx;
154
155 if (!s || src->verbosity < STRM_VERB_CLEAN)
156 return;
157
158 task = s->task;
159 si_f = &s->si[0];
160 si_b = &s->si[1];
161 req = &s->req;
162 res = &s->res;
163 htx = (msg ? htxbuf(&msg->chn->buf) : NULL);
164
165 /* General info about the stream (htx/tcp, id...) */
166 chunk_appendf(&trace_buf, " : [%u,%s]",
167 s->uniq_id, ((s->flags & SF_HTX) ? "HTX" : "TCP"));
Tim Duesterhusa17e6622020-03-05 20:19:02 +0100168 if (isttest(s->unique_id)) {
169 chunk_appendf(&trace_buf, " id=");
170 b_putist(&trace_buf, s->unique_id);
171 }
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100172
173 /* Front and back stream-int state */
174 chunk_appendf(&trace_buf, " SI=(%s,%s)",
175 si_state_str(si_f->state), si_state_str(si_b->state));
176
177 /* If txn is defined, HTTP req/rep states */
178 if (txn)
179 chunk_appendf(&trace_buf, " HTTP=(%s,%s)",
180 h1_msg_state_str(txn->req.msg_state), h1_msg_state_str(txn->rsp.msg_state));
181 if (msg)
182 chunk_appendf(&trace_buf, " %s", ((msg->chn->flags & CF_ISRESP) ? "RESPONSE" : "REQUEST"));
183
184 if (src->verbosity == STRM_VERB_CLEAN)
185 return;
186
187 /* If msg defined, display status-line if possible (verbosity > MINIMAL) */
188 if (src->verbosity > STRM_VERB_MINIMAL && htx && htx_nbblks(htx)) {
189 const struct htx_blk *blk = htx_get_head_blk(htx);
190 const struct htx_sl *sl = htx_get_blk_ptr(htx, blk);
191 enum htx_blk_type type = htx_get_blk_type(blk);
192
193 if (type == HTX_BLK_REQ_SL || type == HTX_BLK_RES_SL)
194 chunk_appendf(&trace_buf, " - \"%.*s %.*s %.*s\"",
195 HTX_SL_P1_LEN(sl), HTX_SL_P1_PTR(sl),
196 HTX_SL_P2_LEN(sl), HTX_SL_P2_PTR(sl),
197 HTX_SL_P3_LEN(sl), HTX_SL_P3_PTR(sl));
198 }
199
200
201 /* If txn defined info about HTTP msgs, otherwise info about SI. */
202 if (txn) {
203 chunk_appendf(&trace_buf, " - t=%p s=(%p,0x%08x) txn.flags=0x%08x, http.flags=(0x%08x,0x%08x) status=%d",
204 task, s, s->flags, txn->flags, txn->req.flags, txn->rsp.flags, txn->status);
205 }
206 else {
207 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",
208 task, s, s->flags, si_f, si_f->flags, si_f->err_type,
209 si_b, si_b->flags, si_b->err_type, si_b->conn_retries);
210 }
211
212 if (src->verbosity == STRM_VERB_MINIMAL)
213 return;
214
215
216 /* If txn defined, don't display all channel info */
217 if (src->verbosity == STRM_VERB_SIMPLE || txn) {
218 chunk_appendf(&trace_buf, " req=(%p .fl=0x%08x .exp(r,w,a)=(%u,%u,%u))",
219 req, req->flags, req->rex, req->wex, req->analyse_exp);
220 chunk_appendf(&trace_buf, " res=(%p .fl=0x%08x .exp(r,w,a)=(%u,%u,%u))",
221 res, res->flags, res->rex, res->wex, res->analyse_exp);
222 }
223 else {
224 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)",
225 req, req->flags, req->analysers, req->rex, req->wex, req->analyse_exp,
Willy Tarreaue18f53e2019-11-27 15:41:31 +0100226 (long)req->output, req->total, req->to_forward);
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100227 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)",
228 res, res->flags, res->analysers, res->rex, res->wex, res->analyse_exp,
Willy Tarreaue18f53e2019-11-27 15:41:31 +0100229 (long)res->output, res->total, res->to_forward);
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100230 }
231
232 if (src->verbosity == STRM_VERB_SIMPLE ||
233 (src->verbosity == STRM_VERB_ADVANCED && src->level < TRACE_LEVEL_DATA))
234 return;
235
236 /* channels' buffer info */
237 if (s->flags & SF_HTX) {
238 struct htx *rqhtx = htxbuf(&req->buf);
239 struct htx *rphtx = htxbuf(&res->buf);
240
241 chunk_appendf(&trace_buf, " htx=(%u/%u#%u, %u/%u#%u)",
242 rqhtx->data, rqhtx->size, htx_nbblks(rqhtx),
243 rphtx->data, rphtx->size, htx_nbblks(rphtx));
244 }
245 else {
246 chunk_appendf(&trace_buf, " buf=(%u@%p+%u/%u, %u@%p+%u/%u)",
247 (unsigned int)b_data(&req->buf), b_orig(&req->buf),
248 (unsigned int)b_head_ofs(&req->buf), (unsigned int)b_size(&req->buf),
249 (unsigned int)b_data(&req->buf), b_orig(&req->buf),
250 (unsigned int)b_head_ofs(&req->buf), (unsigned int)b_size(&req->buf));
251 }
252
253 /* If msg defined, display htx info if defined (level > USER) */
254 if (src->level > TRACE_LEVEL_USER && htx && htx_nbblks(htx)) {
255 int full = 0;
256
257 /* Full htx info (level > STATE && verbosity > SIMPLE) */
258 if (src->level > TRACE_LEVEL_STATE) {
259 if (src->verbosity == STRM_VERB_COMPLETE)
260 full = 1;
261 }
262
263 chunk_memcat(&trace_buf, "\n\t", 2);
264 htx_dump(&trace_buf, htx, full);
265 }
266}
267
Willy Tarreau5790eb02017-08-28 17:18:36 +0200268/* Create a new stream for connection <conn>. Return < 0 on error. This is only
269 * valid right after the handshake, before the connection's data layer is
270 * initialized, because it relies on the session to be in conn->owner.
271 */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200272int stream_create_from_cs(struct conn_stream *cs)
Willy Tarreau5790eb02017-08-28 17:18:36 +0200273{
274 struct stream *strm;
275
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200276 strm = stream_new(cs->conn->owner, &cs->obj_type);
Willy Tarreau5790eb02017-08-28 17:18:36 +0200277 if (strm == NULL)
278 return -1;
279
280 task_wakeup(strm->task, TASK_WOKEN_INIT);
281 return 0;
282}
283
Willy Tarreaub882dd82018-11-06 15:50:21 +0100284/* Callback used to wake up a stream when an input buffer is available. The
285 * stream <s>'s stream interfaces are checked for a failed buffer allocation
Willy Tarreaud0f5bbc2018-11-14 11:10:26 +0100286 * as indicated by the presence of the SI_FL_RXBLK_ROOM flag and the lack of a
Willy Tarreaub882dd82018-11-06 15:50:21 +0100287 * buffer, and and input buffer is assigned there (at most one). The function
288 * returns 1 and wakes the stream up if a buffer was taken, otherwise zero.
289 * It's designed to be called from __offer_buffer().
290 */
291int stream_buf_available(void *arg)
292{
293 struct stream *s = arg;
294
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100295 if (!s->req.buf.size && !s->req.pipe && (s->si[0].flags & SI_FL_RXBLK_BUFF) &&
Willy Tarreaub882dd82018-11-06 15:50:21 +0100296 b_alloc_margin(&s->req.buf, global.tune.reserved_bufs))
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100297 si_rx_buff_rdy(&s->si[0]);
298 else if (!s->res.buf.size && !s->res.pipe && (s->si[1].flags & SI_FL_RXBLK_BUFF) &&
Willy Tarreaub882dd82018-11-06 15:50:21 +0100299 b_alloc_margin(&s->res.buf, 0))
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100300 si_rx_buff_rdy(&s->si[1]);
Willy Tarreaub882dd82018-11-06 15:50:21 +0100301 else
302 return 0;
303
304 task_wakeup(s->task, TASK_WOKEN_RES);
305 return 1;
306
307}
308
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200309/* This function is called from the session handler which detects the end of
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200310 * handshake, in order to complete initialization of a valid stream. It must be
Joseph Herlant4cc8d0d2018-11-15 09:14:14 -0800311 * called with a completely initialized session. It returns the pointer to
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200312 * the newly created stream, or NULL in case of fatal error. The client-facing
Willy Tarreau87787ac2017-08-28 16:22:54 +0200313 * end point is assigned to <origin>, which must be valid. The stream's task
314 * is configured with a nice value inherited from the listener's nice if any.
315 * The task's context is set to the new stream, and its function is set to
316 * process_stream(). Target and analysers are null.
Willy Tarreau2542b532012-08-31 16:01:23 +0200317 */
Willy Tarreau87787ac2017-08-28 16:22:54 +0200318struct stream *stream_new(struct session *sess, enum obj_type *origin)
Willy Tarreau2542b532012-08-31 16:01:23 +0200319{
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200320 struct stream *s;
Willy Tarreau87787ac2017-08-28 16:22:54 +0200321 struct task *t;
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200322 struct conn_stream *cs = objt_cs(origin);
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200323 struct appctx *appctx = objt_appctx(origin);
Christopher Fauletb3484d62018-11-29 15:19:05 +0100324 const struct cs_info *csinfo;
Willy Tarreau2542b532012-08-31 16:01:23 +0200325
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100326 DBG_TRACE_ENTER(STRM_EV_STRM_NEW);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100327 if (unlikely((s = pool_alloc(pool_head_stream)) == NULL))
Willy Tarreau87787ac2017-08-28 16:22:54 +0200328 goto out_fail_alloc;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200329
330 /* minimum stream initialization required for an embryonic stream is
331 * fairly low. We need very little to execute L4 ACLs, then we need a
332 * task to make the client-side connection live on its own.
333 * - flags
334 * - stick-entry tracking
335 */
336 s->flags = 0;
Willy Tarreaufb9f5842015-04-05 18:19:23 +0200337 s->logs.logwait = sess->fe->to_log;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200338 s->logs.level = 0;
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200339 tv_zero(&s->logs.tv_request);
340 s->logs.t_queue = -1;
341 s->logs.t_connect = -1;
342 s->logs.t_data = -1;
343 s->logs.t_close = 0;
344 s->logs.bytes_in = s->logs.bytes_out = 0;
Patrick Hemmerffe5e8c2018-05-11 12:52:31 -0400345 s->logs.prx_queue_pos = 0; /* we get the number of pending conns before us */
346 s->logs.srv_queue_pos = 0; /* we will get this number soon */
Baptiste Assmann333939c2019-01-21 08:34:50 +0100347 s->obj_type = OBJ_TYPE_STREAM;
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200348
Christopher Fauletb3484d62018-11-29 15:19:05 +0100349 csinfo = si_get_cs_info(cs);
350 if (csinfo) {
351 s->logs.accept_date = csinfo->create_date;
352 s->logs.tv_accept = csinfo->tv_create;
353 s->logs.t_handshake = csinfo->t_handshake;
354 s->logs.t_idle = csinfo->t_idle;
355 }
356 else {
357 s->logs.accept_date = sess->accept_date;
358 s->logs.tv_accept = sess->tv_accept;
359 s->logs.t_handshake = sess->t_handshake;
360 s->logs.t_idle = -1;
361 }
362
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200363 /* default logging function */
364 s->do_log = strm_log;
365
366 /* default error reporting function, may be changed by analysers */
367 s->srv_error = default_srv_error;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200368
369 /* Initialise the current rule list pointer to NULL. We are sure that
370 * any rulelist match the NULL pointer.
371 */
372 s->current_rule_list = NULL;
Remi Gacogne7fb9de22015-07-22 17:10:58 +0200373 s->current_rule = NULL;
Christopher Faulet2747fbb2020-07-28 11:56:13 +0200374 s->rules_exp = TICK_ETERNITY;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200375
Willy Tarreaua68f7622015-09-21 17:48:24 +0200376 /* Copy SC counters for the stream. We don't touch refcounts because
377 * any reference we have is inherited from the session. Since the stream
378 * doesn't exist without the session, the session's existence guarantees
379 * we don't lose the entry. During the store operation, the stream won't
380 * touch these ones.
Thierry FOURNIER827752e2015-08-18 11:34:18 +0200381 */
Thierry FOURNIERc8fdb982015-08-16 12:03:39 +0200382 memcpy(s->stkctr, sess->stkctr, sizeof(s->stkctr));
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200383
384 s->sess = sess;
385 s->si[0].flags = SI_FL_NONE;
386 s->si[1].flags = SI_FL_ISBACK;
387
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100388 s->uniq_id = _HA_ATOMIC_XADD(&global.req_count, 1);
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200389
Willy Tarreau87b09662015-04-03 00:22:06 +0200390 /* OK, we're keeping the stream, so let's properly initialize the stream */
Willy Tarreau2542b532012-08-31 16:01:23 +0200391 LIST_INIT(&s->back_refs);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100392
Willy Tarreau21046592020-02-26 10:39:36 +0100393 MT_LIST_INIT(&s->buffer_wait.list);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100394 s->buffer_wait.target = s;
Willy Tarreaub882dd82018-11-06 15:50:21 +0100395 s->buffer_wait.wakeup_cb = stream_buf_available;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200396
Willy Tarreau2e9c1d22019-04-24 08:28:31 +0200397 s->call_rate.curr_sec = s->call_rate.curr_ctr = s->call_rate.prev_ctr = 0;
William Lallemandcf62f7e2018-10-26 14:47:40 +0200398 s->pcli_next_pid = 0;
William Lallemandebf61802018-12-11 16:10:57 +0100399 s->pcli_flags = 0;
Tim Duesterhusa17e6622020-03-05 20:19:02 +0100400 s->unique_id = IST_NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200401
Emeric Brunc60def82017-09-27 14:59:38 +0200402 if ((t = task_new(tid_bit)) == NULL)
Willy Tarreau87787ac2017-08-28 16:22:54 +0200403 goto out_fail_alloc;
404
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200405 s->task = t;
Christopher Faulet9d810ca2016-12-08 22:33:52 +0100406 s->pending_events = 0;
Willy Tarreaud1769b82015-04-06 00:25:48 +0200407 t->process = process_stream;
Willy Tarreau2542b532012-08-31 16:01:23 +0200408 t->context = s;
409 t->expire = TICK_ETERNITY;
Willy Tarreau87787ac2017-08-28 16:22:54 +0200410 if (sess->listener)
411 t->nice = sess->listener->nice;
Willy Tarreau2542b532012-08-31 16:01:23 +0200412
Willy Tarreau87b09662015-04-03 00:22:06 +0200413 /* Note: initially, the stream's backend points to the frontend.
Willy Tarreau2542b532012-08-31 16:01:23 +0200414 * This changes later when switching rules are executed or
415 * when the default backend is assigned.
416 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200417 s->be = sess->fe;
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200418 s->req.buf = BUF_NULL;
419 s->res.buf = BUF_NULL;
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200420 s->req_cap = NULL;
421 s->res_cap = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200422
Willy Tarreauebcd4842015-06-19 11:59:02 +0200423 /* Initialise all the variables contexts even if not used.
424 * This permits to prune these contexts without errors.
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200425 */
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200426 vars_init(&s->vars_txn, SCOPE_TXN);
427 vars_init(&s->vars_reqres, SCOPE_REQ);
428
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200429 /* this part should be common with other protocols */
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200430 if (si_reset(&s->si[0]) < 0)
431 goto out_fail_alloc;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200432 si_set_state(&s->si[0], SI_ST_EST);
Hongbo Longe39683c2017-03-10 18:41:51 +0100433 s->si[0].hcto = sess->fe->timeout.clientfin;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200434
Christopher Faulet0e160ff2019-04-03 10:01:07 +0200435 if (cs && cs->conn->mux) {
436 if (cs->conn->mux->flags & MX_FL_CLEAN_ABRT)
437 s->si[0].flags |= SI_FL_CLEAN_ABRT;
438 if (cs->conn->mux->flags & MX_FL_HTX)
439 s->flags |= SF_HTX;
440 }
Christopher Faulet3494c632019-07-15 14:58:26 +0200441 /* Set SF_HTX flag for HTTP frontends. */
442 if (sess->fe->mode == PR_MODE_HTTP)
Christopher Faulet0e160ff2019-04-03 10:01:07 +0200443 s->flags |= SF_HTX;
Willy Tarreau984fca92017-12-20 16:31:43 +0100444
Willy Tarreau1f52bb22015-04-04 14:28:46 +0200445 /* attach the incoming connection to the stream interface now. */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200446 if (cs)
447 si_attach_cs(&s->si[0], cs);
Willy Tarreau470280e2015-04-05 01:33:13 +0200448 else if (appctx)
449 si_attach_appctx(&s->si[0], appctx);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200450
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200451 if (likely(sess->fe->options2 & PR_O2_INDEPSTR))
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200452 s->si[0].flags |= SI_FL_INDEP_STR;
453
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200454 /* pre-initialize the other side's stream interface to an INIT state. The
455 * callbacks will be initialized before attempting to connect.
456 */
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200457 if (si_reset(&s->si[1]) < 0)
458 goto out_fail_alloc_si1;
Hongbo Longe39683c2017-03-10 18:41:51 +0100459 s->si[1].hcto = TICK_ETERNITY;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200460
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200461 if (likely(sess->fe->options2 & PR_O2_INDEPSTR))
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200462 s->si[1].flags |= SI_FL_INDEP_STR;
463
Willy Tarreau87b09662015-04-03 00:22:06 +0200464 stream_init_srv_conn(s);
Willy Tarreau9b82d942016-12-05 00:26:31 +0100465 s->target = sess->listener ? sess->listener->default_target : NULL;
Willy Tarreau90420602019-07-18 15:09:57 +0200466 s->target_addr = NULL;
Willy Tarreau9b82d942016-12-05 00:26:31 +0100467
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200468 s->pend_pos = NULL;
Patrick Hemmer268a7072018-05-11 12:52:31 -0400469 s->priority_class = 0;
470 s->priority_offset = 0;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200471
472 /* init store persistence */
473 s->store_count = 0;
474
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100475 channel_init(&s->req);
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100476 s->req.flags |= CF_READ_ATTACHED; /* the producer is already connected */
Willy Tarreau9b82d942016-12-05 00:26:31 +0100477 s->req.analysers = sess->listener ? sess->listener->analysers : 0;
Willy Tarreaue223e3b2017-11-18 15:39:10 +0100478
479 if (!sess->fe->fe_req_ana) {
480 channel_auto_connect(&s->req); /* don't wait to establish connection */
481 channel_auto_close(&s->req); /* let the producer forward close requests */
482 }
Willy Tarreauc8815ef2015-04-05 18:15:59 +0200483
484 s->req.rto = sess->fe->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100485 s->req.wto = TICK_ETERNITY;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100486 s->req.rex = TICK_ETERNITY;
487 s->req.wex = TICK_ETERNITY;
488 s->req.analyse_exp = TICK_ETERNITY;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200489
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100490 channel_init(&s->res);
Willy Tarreauef573c02014-11-28 14:17:09 +0100491 s->res.flags |= CF_ISRESP;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100492 s->res.analysers = 0;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200493
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200494 if (sess->fe->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100495 s->req.flags |= CF_NEVER_WAIT;
496 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200497 }
498
Willy Tarreauc8815ef2015-04-05 18:15:59 +0200499 s->res.wto = sess->fe->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100500 s->res.rto = TICK_ETERNITY;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100501 s->res.rex = TICK_ETERNITY;
502 s->res.wex = TICK_ETERNITY;
503 s->res.analyse_exp = TICK_ETERNITY;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200504
Willy Tarreaueee5b512015-04-03 23:46:31 +0200505 s->txn = NULL;
Thierry FOURNIER2c8b54e2016-12-17 12:45:32 +0100506 s->hlua = NULL;
Thierry FOURNIER65f34c62015-02-16 20:11:43 +0100507
Frédéric Lécaillebed883a2019-04-23 17:26:33 +0200508 s->dns_ctx.dns_requester = NULL;
509 s->dns_ctx.hostname_dn = NULL;
510 s->dns_ctx.hostname_dn_len = 0;
511 s->dns_ctx.parent = NULL;
512
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100513 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200514 LIST_ADDQ(&streams, &s->list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100515 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200516
Christopher Faulet92d36382015-11-05 13:35:03 +0100517 if (flt_stream_init(s) < 0 || flt_stream_start(s) < 0)
Christopher Fauletd7c91962015-04-30 11:48:27 +0200518 goto out_fail_accept;
519
Olivier Houcharda254a372019-04-05 15:30:12 +0200520 s->si[1].l7_buffer = BUF_NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200521 /* finish initialization of the accepted file descriptor */
Olivier Houchard53216e72018-10-10 15:46:36 +0200522 if (appctx)
Willy Tarreau0cd3bd62018-11-06 18:46:37 +0100523 si_want_get(&s->si[0]);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200524
Willy Tarreaufb9f5842015-04-05 18:19:23 +0200525 if (sess->fe->accept && sess->fe->accept(s) < 0)
Willy Tarreauc5a7ff42015-04-05 11:52:08 +0200526 goto out_fail_accept;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200527
528 /* it is important not to call the wakeup function directly but to
529 * pass through task_wakeup(), because this one knows how to apply
Emeric Brun5f77fef2017-05-29 15:26:51 +0200530 * priorities to tasks. Using multi thread we must be sure that
531 * stream is fully initialized before calling task_wakeup. So
532 * the caller must handle the task_wakeup
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200533 */
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100534 DBG_TRACE_LEAVE(STRM_EV_STRM_NEW, s);
Willy Tarreau02d86382015-04-05 12:00:52 +0200535 return s;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200536
537 /* Error unrolling */
Willy Tarreauc5a7ff42015-04-05 11:52:08 +0200538 out_fail_accept:
Christopher Faulet92d36382015-11-05 13:35:03 +0100539 flt_stream_release(s, 0);
Olivier Houchard3f795f72019-04-17 22:51:06 +0200540 task_destroy(t);
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200541 tasklet_free(s->si[1].wait_event.tasklet);
Willy Tarreaue5f229e2018-10-15 11:08:55 +0200542 LIST_DEL(&s->list);
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200543out_fail_alloc_si1:
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200544 tasklet_free(s->si[0].wait_event.tasklet);
Willy Tarreau87787ac2017-08-28 16:22:54 +0200545 out_fail_alloc:
Willy Tarreaubafbe012017-11-24 17:34:44 +0100546 pool_free(pool_head_stream, s);
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100547 DBG_TRACE_DEVEL("leaving on error", STRM_EV_STRM_NEW|STRM_EV_STRM_ERR);
Willy Tarreau02d86382015-04-05 12:00:52 +0200548 return NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200549}
550
Willy Tarreaubaaee002006-06-26 02:48:02 +0200551/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200552 * frees the context associated to a stream. It must have been removed first.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200553 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200554static void stream_free(struct stream *s)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200555{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200556 struct session *sess = strm_sess(s);
557 struct proxy *fe = sess->fe;
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100558 struct bref *bref, *back;
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200559 struct conn_stream *cli_cs = objt_cs(s->si[0].end);
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100560 int must_free_sess;
Willy Tarreaua4cda672010-06-06 18:28:49 +0200561 int i;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100562
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100563 DBG_TRACE_POINT(STRM_EV_STRM_FREE, s);
564
Willy Tarreau0ad46fa2019-05-17 14:20:05 +0200565 /* detach the stream from its own task before even releasing it so
566 * that walking over a task list never exhibits a dying stream.
567 */
568 s->task->context = NULL;
569 __ha_barrier_store();
570
Willy Tarreaud0ad4a82018-07-25 11:13:53 +0200571 pendconn_free(s);
Willy Tarreau922a8062008-12-04 09:33:58 +0100572
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100573 if (objt_server(s->target)) { /* there may be requests left pending in queue */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200574 if (s->flags & SF_CURR_SESS) {
575 s->flags &= ~SF_CURR_SESS;
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100576 _HA_ATOMIC_SUB(&__objt_server(s->target)->cur_sess, 1);
Willy Tarreau1e62de62008-11-11 20:20:02 +0100577 }
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100578 if (may_dequeue_tasks(objt_server(s->target), s->be))
579 process_srv_queue(objt_server(s->target));
Willy Tarreau1e62de62008-11-11 20:20:02 +0100580 }
Willy Tarreau922a8062008-12-04 09:33:58 +0100581
Willy Tarreau7c669d72008-06-20 15:04:11 +0200582 if (unlikely(s->srv_conn)) {
Willy Tarreau87b09662015-04-03 00:22:06 +0200583 /* the stream still has a reserved slot on a server, but
Willy Tarreau7c669d72008-06-20 15:04:11 +0200584 * it should normally be only the same as the one above,
585 * so this should not happen in fact.
586 */
587 sess_change_server(s, NULL);
588 }
589
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100590 if (s->req.pipe)
591 put_pipe(s->req.pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100592
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100593 if (s->res.pipe)
594 put_pipe(s->res.pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100595
Willy Tarreaubf883e02014-11-25 21:10:35 +0100596 /* We may still be present in the buffer wait queue */
Willy Tarreau21046592020-02-26 10:39:36 +0100597 if (MT_LIST_ADDED(&s->buffer_wait.list))
598 MT_LIST_DEL(&s->buffer_wait.list);
599
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200600 if (s->req.buf.size || s->res.buf.size) {
Willy Tarreaue0d0b402019-08-08 08:06:27 +0200601 b_free(&s->req.buf);
602 b_free(&s->res.buf);
Olivier Houchard673867c2018-05-25 16:58:52 +0200603 offer_buffers(NULL, tasks_run_queue);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100604 }
Willy Tarreau9b28e032012-10-12 23:49:43 +0200605
Tim Duesterhusa17e6622020-03-05 20:19:02 +0100606 pool_free(pool_head_uniqueid, s->unique_id.ptr);
607 s->unique_id = IST_NULL;
Olivier Houchard32211a12019-02-01 18:10:46 +0100608
Thierry FOURNIER2c8b54e2016-12-17 12:45:32 +0100609 hlua_ctx_destroy(s->hlua);
610 s->hlua = NULL;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200611 if (s->txn)
612 http_end_txn(s);
Willy Tarreau46023632010-01-07 22:51:47 +0100613
Willy Tarreau1e954912012-10-12 17:50:05 +0200614 /* ensure the client-side transport layer is destroyed */
Willy Tarreau32560732017-10-08 11:33:44 +0200615 if (cli_cs)
616 cs_close(cli_cs);
Willy Tarreau1e954912012-10-12 17:50:05 +0200617
Willy Tarreaua4cda672010-06-06 18:28:49 +0200618 for (i = 0; i < s->store_count; i++) {
619 if (!s->store[i].ts)
620 continue;
621 stksess_free(s->store[i].table, s->store[i].ts);
622 s->store[i].ts = NULL;
623 }
624
Willy Tarreaueee5b512015-04-03 23:46:31 +0200625 if (s->txn) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100626 pool_free(pool_head_http_txn, s->txn);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200627 s->txn = NULL;
628 }
629
Baptiste Assmann333939c2019-01-21 08:34:50 +0100630 if (s->dns_ctx.dns_requester) {
Christopher Faulet5098a082020-07-22 11:46:32 +0200631 __decl_thread(struct dns_resolvers *resolvers = s->dns_ctx.parent->arg.dns.resolvers);
632
633 HA_SPIN_LOCK(DNS_LOCK, &resolvers->lock);
Baptiste Assmann333939c2019-01-21 08:34:50 +0100634 free(s->dns_ctx.hostname_dn); s->dns_ctx.hostname_dn = NULL;
635 s->dns_ctx.hostname_dn_len = 0;
636 dns_unlink_resolution(s->dns_ctx.dns_requester);
Christopher Faulet5098a082020-07-22 11:46:32 +0200637 HA_SPIN_UNLOCK(DNS_LOCK, &resolvers->lock);
Baptiste Assmann333939c2019-01-21 08:34:50 +0100638
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 Tarreau86891272020-07-10 08:22:26 +0200736 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
Ilya Shipitsinc02a23f2020-05-06 00:53:22 +0500973 * consistent state. It returns ACT_RET_STOP in success case because
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200974 * 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
Ilya Shipitsinc02a23f2020-05-06 00:53:22 +0500998 /* Stops the applet scheduling, in case of the init function miss
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200999 * 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) {
Jerome Magnin824186b2020-03-29 09:37:12 +02001172 struct server *srv;
1173
1174 if (rule->dynamic) {
1175 struct buffer *tmp = get_trash_chunk();
1176
1177 if (!build_logline(s, tmp->area, tmp->size, &rule->expr))
1178 break;
1179
1180 srv = findserver(s->be, tmp->area);
1181 if (!srv)
1182 break;
1183 }
1184 else
1185 srv = rule->srv.ptr;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001186
Emeric Brun52a91d32017-08-31 14:41:55 +02001187 if ((srv->cur_state != SRV_ST_STOPPED) ||
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001188 (px->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +02001189 (s->flags & SF_FORCE_PRST)) {
1190 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001191 s->target = &srv->obj_type;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001192 break;
1193 }
1194 /* if the server is not UP, let's go on with next rules
1195 * just in case another one is suited.
1196 */
1197 }
1198 }
1199 }
1200
1201 req->analysers &= ~an_bit;
1202 req->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001203 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001204 return 1;
1205}
1206
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001207static inline void sticking_rule_find_target(struct stream *s,
1208 struct stktable *t, struct stksess *ts)
1209{
1210 struct proxy *px = s->be;
1211 struct eb32_node *node;
1212 struct dict_entry *de;
1213 void *ptr;
1214 struct server *srv;
1215
1216 /* Look for the server name previously stored in <t> stick-table */
1217 HA_RWLOCK_RDLOCK(STK_SESS_LOCK, &ts->lock);
1218 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_NAME);
1219 de = stktable_data_cast(ptr, server_name);
1220 HA_RWLOCK_RDUNLOCK(STK_SESS_LOCK, &ts->lock);
1221
1222 if (de) {
1223 struct ebpt_node *name;
1224
1225 name = ebis_lookup(&px->conf.used_server_name, de->value.key);
1226 if (name) {
1227 srv = container_of(name, struct server, conf.name);
1228 goto found;
1229 }
1230 }
1231
1232 /* Look for the server ID */
1233 HA_RWLOCK_RDLOCK(STK_SESS_LOCK, &ts->lock);
1234 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_ID);
1235 node = eb32_lookup(&px->conf.used_server_id, stktable_data_cast(ptr, server_id));
1236 HA_RWLOCK_RDUNLOCK(STK_SESS_LOCK, &ts->lock);
1237
1238 if (!node)
1239 return;
1240
1241 srv = container_of(node, struct server, conf.id);
1242 found:
1243 if ((srv->cur_state != SRV_ST_STOPPED) ||
1244 (px->options & PR_O_PERSIST) || (s->flags & SF_FORCE_PRST)) {
1245 s->flags |= SF_DIRECT | SF_ASSIGNED;
1246 s->target = &srv->obj_type;
1247 }
1248}
1249
Emeric Brun1d33b292010-01-04 15:47:17 +01001250/* This stream analyser works on a request. It applies all sticking rules on
1251 * it then returns 1. The data must already be present in the buffer otherwise
1252 * they won't match. It always returns 1.
1253 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001254static int process_sticking_rules(struct stream *s, struct channel *req, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001255{
1256 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001257 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001258 struct sticking_rule *rule;
1259
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001260 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001261
1262 list_for_each_entry(rule, &px->sticking_rules, list) {
1263 int ret = 1 ;
1264 int i;
1265
Willy Tarreau9667a802013-12-09 12:52:13 +01001266 /* Only the first stick store-request of each table is applied
1267 * and other ones are ignored. The purpose is to allow complex
1268 * configurations which look for multiple entries by decreasing
1269 * order of precision and to stop at the first which matches.
1270 * An example could be a store of the IP address from an HTTP
1271 * header first, then from the source if not found.
1272 */
Jerome Magninbee00ad2020-01-16 17:37:21 +01001273 if (rule->flags & STK_IS_STORE) {
1274 for (i = 0; i < s->store_count; i++) {
1275 if (rule->table.t == s->store[i].table)
1276 break;
1277 }
Emeric Brun1d33b292010-01-04 15:47:17 +01001278
Jerome Magninbee00ad2020-01-16 17:37:21 +01001279 if (i != s->store_count)
1280 continue;
1281 }
Emeric Brun1d33b292010-01-04 15:47:17 +01001282
1283 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001284 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001285 ret = acl_pass(ret);
1286 if (rule->cond->pol == ACL_COND_UNLESS)
1287 ret = !ret;
1288 }
1289
1290 if (ret) {
1291 struct stktable_key *key;
1292
Willy Tarreau192252e2015-04-04 01:47:55 +02001293 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 +01001294 if (!key)
1295 continue;
1296
1297 if (rule->flags & STK_IS_MATCH) {
1298 struct stksess *ts;
1299
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001300 if ((ts = stktable_lookup_key(rule->table.t, key)) != NULL) {
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001301 if (!(s->flags & SF_ASSIGNED))
1302 sticking_rule_find_target(s, rule->table.t, ts);
Emeric Brun819fc6f2017-06-13 19:37:32 +02001303 stktable_touch_local(rule->table.t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001304 }
1305 }
1306 if (rule->flags & STK_IS_STORE) {
1307 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
1308 struct stksess *ts;
1309
1310 ts = stksess_new(rule->table.t, key);
1311 if (ts) {
1312 s->store[s->store_count].table = rule->table.t;
1313 s->store[s->store_count++].ts = ts;
1314 }
1315 }
1316 }
1317 }
1318 }
1319
1320 req->analysers &= ~an_bit;
1321 req->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001322 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001323 return 1;
1324}
1325
1326/* This stream analyser works on a response. It applies all store rules on it
1327 * then returns 1. The data must already be present in the buffer otherwise
1328 * they won't match. It always returns 1.
1329 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001330static int process_store_rules(struct stream *s, struct channel *rep, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001331{
1332 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001333 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001334 struct sticking_rule *rule;
1335 int i;
Willy Tarreau9667a802013-12-09 12:52:13 +01001336 int nbreq = s->store_count;
Emeric Brun1d33b292010-01-04 15:47:17 +01001337
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001338 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001339
1340 list_for_each_entry(rule, &px->storersp_rules, list) {
1341 int ret = 1 ;
Emeric Brun1d33b292010-01-04 15:47:17 +01001342
Willy Tarreau9667a802013-12-09 12:52:13 +01001343 /* Only the first stick store-response of each table is applied
1344 * and other ones are ignored. The purpose is to allow complex
1345 * configurations which look for multiple entries by decreasing
1346 * order of precision and to stop at the first which matches.
1347 * An example could be a store of a set-cookie value, with a
1348 * fallback to a parameter found in a 302 redirect.
1349 *
1350 * The store-response rules are not allowed to override the
1351 * store-request rules for the same table, but they may coexist.
1352 * Thus we can have up to one store-request entry and one store-
1353 * response entry for the same table at any time.
1354 */
1355 for (i = nbreq; i < s->store_count; i++) {
1356 if (rule->table.t == s->store[i].table)
1357 break;
1358 }
1359
1360 /* skip existing entries for this table */
1361 if (i < s->store_count)
1362 continue;
1363
Emeric Brun1d33b292010-01-04 15:47:17 +01001364 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001365 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_RES|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001366 ret = acl_pass(ret);
1367 if (rule->cond->pol == ACL_COND_UNLESS)
1368 ret = !ret;
1369 }
1370
1371 if (ret) {
1372 struct stktable_key *key;
1373
Willy Tarreau192252e2015-04-04 01:47:55 +02001374 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 +01001375 if (!key)
1376 continue;
1377
Willy Tarreau37e340c2013-12-06 23:05:21 +01001378 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001379 struct stksess *ts;
1380
1381 ts = stksess_new(rule->table.t, key);
1382 if (ts) {
1383 s->store[s->store_count].table = rule->table.t;
Emeric Brun1d33b292010-01-04 15:47:17 +01001384 s->store[s->store_count++].ts = ts;
1385 }
1386 }
1387 }
1388 }
1389
1390 /* process store request and store response */
1391 for (i = 0; i < s->store_count; i++) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001392 struct stksess *ts;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001393 void *ptr;
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001394 struct dict_entry *de;
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001395
Willy Tarreauc93cd162014-05-13 15:54:22 +02001396 if (objt_server(s->target) && objt_server(s->target)->flags & SRV_F_NON_STICK) {
Simon Hormanfa461682011-06-25 09:39:49 +09001397 stksess_free(s->store[i].table, s->store[i].ts);
1398 s->store[i].ts = NULL;
1399 continue;
1400 }
1401
Emeric Brun819fc6f2017-06-13 19:37:32 +02001402 ts = stktable_set_entry(s->store[i].table, s->store[i].ts);
1403 if (ts != s->store[i].ts) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001404 /* the entry already existed, we can free ours */
Emeric Brun1d33b292010-01-04 15:47:17 +01001405 stksess_free(s->store[i].table, s->store[i].ts);
Emeric Brun1d33b292010-01-04 15:47:17 +01001406 }
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001407 s->store[i].ts = NULL;
Emeric Brun819fc6f2017-06-13 19:37:32 +02001408
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001409 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Willy Tarreaub8d42d02018-09-20 11:11:15 +02001410 ptr = __stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_ID);
1411 stktable_data_cast(ptr, server_id) = __objt_server(s->target)->puid;
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001412 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001413
1414 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
1415 de = dict_insert(&server_name_dict, __objt_server(s->target)->id);
1416 if (de) {
1417 ptr = __stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_NAME);
1418 stktable_data_cast(ptr, server_name) = de;
1419 }
1420 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
1421
Emeric Brun819fc6f2017-06-13 19:37:32 +02001422 stktable_touch_local(s->store[i].table, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001423 }
Willy Tarreau2a164ee2010-06-18 09:57:45 +02001424 s->store_count = 0; /* everything is stored */
Emeric Brun1d33b292010-01-04 15:47:17 +01001425
1426 rep->analysers &= ~an_bit;
1427 rep->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001428
1429 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001430 return 1;
1431}
1432
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001433/* This macro is very specific to the function below. See the comments in
Willy Tarreau87b09662015-04-03 00:22:06 +02001434 * process_stream() below to understand the logic and the tests.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001435 */
1436#define UPDATE_ANALYSERS(real, list, back, flag) { \
1437 list = (((list) & ~(flag)) | ~(back)) & (real); \
1438 back = real; \
1439 if (!(list)) \
1440 break; \
1441 if (((list) ^ ((list) & ((list) - 1))) < (flag)) \
1442 continue; \
1443}
1444
Christopher Fauleta9215b72016-05-11 17:06:28 +02001445/* These 2 following macros call an analayzer for the specified channel if the
1446 * right flag is set. The first one is used for "filterable" analyzers. If a
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001447 * stream has some registered filters, pre and post analyaze callbacks are
Christopher Faulet0184ea72017-01-05 14:06:34 +01001448 * called. The second are used for other analyzers (AN_REQ/RES_FLT_* and
Christopher Fauleta9215b72016-05-11 17:06:28 +02001449 * AN_REQ/RES_HTTP_XFER_BODY) */
1450#define FLT_ANALYZE(strm, chn, fun, list, back, flag, ...) \
1451 { \
1452 if ((list) & (flag)) { \
1453 if (HAS_FILTERS(strm)) { \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001454 if (!flt_pre_analyze((strm), (chn), (flag))) \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001455 break; \
1456 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1457 break; \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001458 if (!flt_post_analyze((strm), (chn), (flag))) \
1459 break; \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001460 } \
1461 else { \
1462 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1463 break; \
1464 } \
1465 UPDATE_ANALYSERS((chn)->analysers, (list), \
1466 (back), (flag)); \
1467 } \
1468 }
1469
1470#define ANALYZE(strm, chn, fun, list, back, flag, ...) \
1471 { \
1472 if ((list) & (flag)) { \
1473 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1474 break; \
1475 UPDATE_ANALYSERS((chn)->analysers, (list), \
1476 (back), (flag)); \
1477 } \
1478 }
1479
Willy Tarreau87b09662015-04-03 00:22:06 +02001480/* Processes the client, server, request and response jobs of a stream task,
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001481 * then puts it back to the wait queue in a clean state, or cleans up its
1482 * resources if it must be deleted. Returns in <next> the date the task wants
1483 * to be woken up, or TICK_ETERNITY. In order not to call all functions for
1484 * nothing too many times, the request and response buffers flags are monitored
1485 * and each function is called only if at least another function has changed at
1486 * least one flag it is interested in.
1487 */
Olivier Houchard9f6af332018-05-25 14:04:04 +02001488struct task *process_stream(struct task *t, void *context, unsigned short state)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001489{
Willy Tarreau827aee92011-03-10 16:55:02 +01001490 struct server *srv;
Olivier Houchard9f6af332018-05-25 14:04:04 +02001491 struct stream *s = context;
Willy Tarreaufb0afa72015-04-03 14:46:27 +02001492 struct session *sess = s->sess;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001493 unsigned int rqf_last, rpf_last;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001494 unsigned int rq_prod_last, rq_cons_last;
1495 unsigned int rp_cons_last, rp_prod_last;
Willy Tarreau576507f2010-01-07 00:09:04 +01001496 unsigned int req_ana_back;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001497 struct channel *req, *res;
1498 struct stream_interface *si_f, *si_b;
Willy Tarreau3d07a162019-04-25 19:15:20 +02001499 unsigned int rate;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001500
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001501 DBG_TRACE_ENTER(STRM_EV_STRM_PROC, s);
1502
Willy Tarreau7af4fa92020-06-17 20:49:49 +02001503 activity[tid].stream_calls++;
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01001504
Willy Tarreau8f128b42014-11-28 15:07:47 +01001505 req = &s->req;
1506 res = &s->res;
1507
1508 si_f = &s->si[0];
1509 si_b = &s->si[1];
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001510
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001511 /* First, attempt to receive pending data from I/O layers */
Willy Tarreauade64782018-11-17 19:51:07 +01001512 si_sync_recv(si_f);
1513 si_sync_recv(si_b);
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001514
Willy Tarreau3d07a162019-04-25 19:15:20 +02001515 rate = update_freq_ctr(&s->call_rate, 1);
1516 if (rate >= 100000 && s->call_rate.prev_ctr) { // make sure to wait at least a full second
1517 stream_dump_and_crash(&s->obj_type, read_freq_ctr(&s->call_rate));
1518 }
Olivier Houchardc2aa7112018-09-11 18:27:21 +02001519
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001520 /* this data may be no longer valid, clear it */
Willy Tarreaueee5b512015-04-03 23:46:31 +02001521 if (s->txn)
1522 memset(&s->txn->auth, 0, sizeof(s->txn->auth));
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001523
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02001524 /* This flag must explicitly be set every time */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001525 req->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
1526 res->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001527
1528 /* Keep a copy of req/rep flags so that we can detect shutdowns */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001529 rqf_last = req->flags & ~CF_MASK_ANALYSER;
1530 rpf_last = res->flags & ~CF_MASK_ANALYSER;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001531
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001532 /* we don't want the stream interface functions to recursively wake us up */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001533 si_f->flags |= SI_FL_DONT_WAKE;
1534 si_b->flags |= SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001535
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001536 /* update pending events */
Olivier Houchard9f6af332018-05-25 14:04:04 +02001537 s->pending_events |= (state & TASK_WOKEN_ANY);
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001538
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001539 /* 1a: Check for low level timeouts if needed. We just set a flag on
1540 * stream interfaces when their timeouts have expired.
1541 */
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001542 if (unlikely(s->pending_events & TASK_WOKEN_TIMER)) {
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001543 si_check_timeouts(si_f);
1544 si_check_timeouts(si_b);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001545
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001546 /* check channel timeouts, and close the corresponding stream interfaces
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001547 * for future reads or writes. Note: this will also concern upper layers
1548 * but we do not touch any other flag. We must be careful and correctly
1549 * detect state changes when calling them.
1550 */
1551
Willy Tarreau8f128b42014-11-28 15:07:47 +01001552 channel_check_timeouts(req);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001553
Willy Tarreau8f128b42014-11-28 15:07:47 +01001554 if (unlikely((req->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1555 si_b->flags |= SI_FL_NOLINGER;
1556 si_shutw(si_b);
Willy Tarreau14641402009-12-29 14:49:56 +01001557 }
1558
Willy Tarreau8f128b42014-11-28 15:07:47 +01001559 if (unlikely((req->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1560 if (si_f->flags & SI_FL_NOHALF)
1561 si_f->flags |= SI_FL_NOLINGER;
1562 si_shutr(si_f);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001563 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001564
Willy Tarreau8f128b42014-11-28 15:07:47 +01001565 channel_check_timeouts(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001566
Willy Tarreau8f128b42014-11-28 15:07:47 +01001567 if (unlikely((res->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1568 si_f->flags |= SI_FL_NOLINGER;
1569 si_shutw(si_f);
Willy Tarreau14641402009-12-29 14:49:56 +01001570 }
1571
Willy Tarreau8f128b42014-11-28 15:07:47 +01001572 if (unlikely((res->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1573 if (si_b->flags & SI_FL_NOHALF)
1574 si_b->flags |= SI_FL_NOLINGER;
1575 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001576 }
Willy Tarreau798f4322012-11-08 14:49:17 +01001577
Christopher Fauleta00d8172016-11-10 14:58:05 +01001578 if (HAS_FILTERS(s))
1579 flt_stream_check_timeouts(s);
1580
Willy Tarreau798f4322012-11-08 14:49:17 +01001581 /* Once in a while we're woken up because the task expires. But
1582 * this does not necessarily mean that a timeout has been reached.
Willy Tarreau87b09662015-04-03 00:22:06 +02001583 * So let's not run a whole stream processing if only an expiration
Willy Tarreau798f4322012-11-08 14:49:17 +01001584 * timeout needs to be refreshed.
1585 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001586 if (!((req->flags | res->flags) &
Willy Tarreau798f4322012-11-08 14:49:17 +01001587 (CF_SHUTR|CF_READ_ACTIVITY|CF_READ_TIMEOUT|CF_SHUTW|
Willy Tarreauede3d882018-10-24 17:17:56 +02001588 CF_WRITE_ACTIVITY|CF_WRITE_TIMEOUT|CF_ANA_TIMEOUT)) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01001589 !((si_f->flags | si_b->flags) & (SI_FL_EXP|SI_FL_ERR)) &&
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001590 ((s->pending_events & TASK_WOKEN_ANY) == TASK_WOKEN_TIMER)) {
Willy Tarreau5fb04712016-05-04 10:18:37 +02001591 si_f->flags &= ~SI_FL_DONT_WAKE;
1592 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau798f4322012-11-08 14:49:17 +01001593 goto update_exp_and_leave;
Willy Tarreau5fb04712016-05-04 10:18:37 +02001594 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001595 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001596
Willy Tarreau829bd472019-06-06 09:17:23 +02001597 resync_stream_interface:
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001598 /* below we may emit error messages so we have to ensure that we have
1599 * our buffers properly allocated.
1600 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001601 if (!stream_alloc_work_buffer(s)) {
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001602 /* No buffer available, we've been subscribed to the list of
1603 * buffer waiters, let's wait for our turn.
1604 */
Willy Tarreau5fb04712016-05-04 10:18:37 +02001605 si_f->flags &= ~SI_FL_DONT_WAKE;
1606 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001607 goto update_exp_and_leave;
1608 }
1609
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001610 /* 1b: check for low-level errors reported at the stream interface.
1611 * First we check if it's a retryable error (in which case we don't
1612 * want to tell the buffer). Otherwise we report the error one level
1613 * upper by setting flags into the buffers. Note that the side towards
1614 * the client cannot have connect (hence retryable) errors. Also, the
1615 * connection setup code must be able to deal with any type of abort.
1616 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001617 srv = objt_server(s->target);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001618 if (unlikely(si_f->flags & SI_FL_ERR)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001619 if (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001620 si_shutr(si_f);
1621 si_shutw(si_f);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001622 si_report_error(si_f);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001623 if (!(req->analysers) && !(res->analysers)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001624 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1625 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001626 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001627 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001628 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001629 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001630 if (!(s->flags & SF_ERR_MASK))
1631 s->flags |= SF_ERR_CLICL;
1632 if (!(s->flags & SF_FINST_MASK))
1633 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001634 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001635 }
1636 }
1637
Willy Tarreau8f128b42014-11-28 15:07:47 +01001638 if (unlikely(si_b->flags & SI_FL_ERR)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001639 if (si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001640 si_shutr(si_b);
1641 si_shutw(si_b);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001642 si_report_error(si_b);
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001643 _HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001644 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001645 _HA_ATOMIC_ADD(&srv->counters.failed_resp, 1);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001646 if (!(req->analysers) && !(res->analysers)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001647 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1648 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001649 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001650 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001651 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001652 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001653 if (!(s->flags & SF_ERR_MASK))
1654 s->flags |= SF_ERR_SRVCL;
1655 if (!(s->flags & SF_FINST_MASK))
1656 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001657 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001658 }
1659 /* note: maybe we should process connection errors here ? */
1660 }
1661
Willy Tarreau4f283fa2019-06-05 14:34:03 +02001662 if (si_state_in(si_b->state, SI_SB_CON|SI_SB_RDY)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001663 /* we were trying to establish a connection on the server side,
1664 * maybe it succeeded, maybe it failed, maybe we timed out, ...
1665 */
Willy Tarreaud66ed882019-06-05 18:02:04 +02001666 if (si_b->state == SI_ST_RDY)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001667 back_handle_st_rdy(s);
Willy Tarreaud66ed882019-06-05 18:02:04 +02001668 else if (si_b->state == SI_ST_CON)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001669 back_handle_st_con(s);
Willy Tarreaud66ed882019-06-05 18:02:04 +02001670
1671 if (si_b->state == SI_ST_CER)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001672 back_handle_st_cer(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001673 else if (si_b->state == SI_ST_EST)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001674 back_establish(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001675
1676 /* state is now one of SI_ST_CON (still in progress), SI_ST_EST
1677 * (established), SI_ST_DIS (abort), SI_ST_CLO (last error),
1678 * SI_ST_ASS/SI_ST_TAR/SI_ST_REQ for retryable errors.
1679 */
1680 }
1681
Willy Tarreau8f128b42014-11-28 15:07:47 +01001682 rq_prod_last = si_f->state;
1683 rq_cons_last = si_b->state;
1684 rp_cons_last = si_f->state;
1685 rp_prod_last = si_b->state;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001686
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001687 /* Check for connection closure */
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001688 DBG_TRACE_POINT(STRM_EV_STRM_PROC, s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001689
1690 /* nothing special to be done on client side */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001691 if (unlikely(si_f->state == SI_ST_DIS))
1692 si_f->state = SI_ST_CLO;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001693
1694 /* When a server-side connection is released, we have to count it and
1695 * check for pending connections on this server.
1696 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001697 if (unlikely(si_b->state == SI_ST_DIS)) {
1698 si_b->state = SI_ST_CLO;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001699 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01001700 if (srv) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001701 if (s->flags & SF_CURR_SESS) {
1702 s->flags &= ~SF_CURR_SESS;
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001703 _HA_ATOMIC_SUB(&srv->cur_sess, 1);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001704 }
1705 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001706 if (may_dequeue_tasks(srv, s->be))
1707 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001708 }
1709 }
1710
1711 /*
1712 * Note: of the transient states (REQ, CER, DIS), only REQ may remain
1713 * at this point.
1714 */
1715
Willy Tarreau0be0ef92009-03-08 19:20:25 +01001716 resync_request:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001717 /* Analyse request */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001718 if (((req->flags & ~rqf_last) & CF_MASK_ANALYSER) ||
1719 ((req->flags ^ rqf_last) & CF_MASK_STATIC) ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01001720 (req->analysers && (req->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01001721 si_f->state != rq_prod_last ||
1722 si_b->state != rq_cons_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001723 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001724 unsigned int flags = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001725
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001726 if (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001727 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001728 unsigned int ana_list;
1729 unsigned int ana_back;
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001730
Willy Tarreau90deb182010-01-07 00:20:41 +01001731 /* it's up to the analysers to stop new connections,
1732 * disable reading or closing. Note: if an analyser
1733 * disables any of these bits, it is responsible for
1734 * enabling them again when it disables itself, so
1735 * that other analysers are called in similar conditions.
1736 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001737 channel_auto_read(req);
1738 channel_auto_connect(req);
1739 channel_auto_close(req);
Willy Tarreauedcf6682008-11-30 23:15:34 +01001740
1741 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01001742 * req->analysers, following the bit order from LSB
Willy Tarreauedcf6682008-11-30 23:15:34 +01001743 * to MSB. The analysers must remove themselves from
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001744 * the list when not needed. Any analyser may return 0
1745 * to break out of the loop, either because of missing
1746 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02001747 * kill the stream. We loop at least once through each
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001748 * analyser, and we may loop again if other analysers
1749 * are added in the middle.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001750 *
1751 * We build a list of analysers to run. We evaluate all
1752 * of these analysers in the order of the lower bit to
1753 * the higher bit. This ordering is very important.
1754 * An analyser will often add/remove other analysers,
1755 * including itself. Any changes to itself have no effect
1756 * on the loop. If it removes any other analysers, we
1757 * want those analysers not to be called anymore during
1758 * this loop. If it adds an analyser that is located
1759 * after itself, we want it to be scheduled for being
1760 * processed during the loop. If it adds an analyser
1761 * which is located before it, we want it to switch to
1762 * it immediately, even if it has already been called
1763 * once but removed since.
1764 *
1765 * In order to achieve this, we compare the analyser
1766 * list after the call with a copy of it before the
1767 * call. The work list is fed with analyser bits that
1768 * appeared during the call. Then we compare previous
1769 * work list with the new one, and check the bits that
1770 * appeared. If the lowest of these bits is lower than
1771 * the current bit, it means we have enabled a previous
1772 * analyser and must immediately loop again.
Willy Tarreauedcf6682008-11-30 23:15:34 +01001773 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001774
Willy Tarreau8f128b42014-11-28 15:07:47 +01001775 ana_list = ana_back = req->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001776 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001777 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01001778 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_FE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001779 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_FE);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001780 FLT_ANALYZE(s, req, http_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_HTTP);
1781 FLT_ANALYZE(s, req, http_wait_for_request_body, ana_list, ana_back, AN_REQ_HTTP_BODY);
1782 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 +02001783 FLT_ANALYZE(s, req, process_switching_rules, ana_list, ana_back, AN_REQ_SWITCHING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001784 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001785 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_BE);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001786 FLT_ANALYZE(s, req, http_process_req_common, ana_list, ana_back, AN_REQ_HTTP_PROCESS_BE, s->be);
1787 FLT_ANALYZE(s, req, http_process_tarpit, ana_list, ana_back, AN_REQ_HTTP_TARPIT);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001788 FLT_ANALYZE(s, req, process_server_rules, ana_list, ana_back, AN_REQ_SRV_RULES);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001789 FLT_ANALYZE(s, req, http_process_request, ana_list, ana_back, AN_REQ_HTTP_INNER);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001790 FLT_ANALYZE(s, req, tcp_persist_rdp_cookie, ana_list, ana_back, AN_REQ_PRST_RDP_COOKIE);
1791 FLT_ANALYZE(s, req, process_sticking_rules, ana_list, ana_back, AN_REQ_STICKING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001792 ANALYZE (s, req, flt_analyze_http_headers, ana_list, ana_back, AN_REQ_FLT_HTTP_HDRS);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001793 ANALYZE (s, req, http_request_forward_body, ana_list, ana_back, AN_REQ_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02001794 ANALYZE (s, req, pcli_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001795 ANALYZE (s, req, flt_xfer_data, ana_list, ana_back, AN_REQ_FLT_XFER_DATA);
1796 ANALYZE (s, req, flt_end_analyze, ana_list, ana_back, AN_REQ_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01001797 break;
1798 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001799 }
Willy Tarreau84455332009-03-15 22:34:05 +01001800
Willy Tarreau8f128b42014-11-28 15:07:47 +01001801 rq_prod_last = si_f->state;
1802 rq_cons_last = si_b->state;
1803 req->flags &= ~CF_WAKE_ONCE;
1804 rqf_last = req->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001805
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02001806 if ((req->flags ^ flags) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001807 goto resync_request;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001808 }
1809
Willy Tarreau576507f2010-01-07 00:09:04 +01001810 /* we'll monitor the request analysers while parsing the response,
1811 * because some response analysers may indirectly enable new request
1812 * analysers (eg: HTTP keep-alive).
1813 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001814 req_ana_back = req->analysers;
Willy Tarreau576507f2010-01-07 00:09:04 +01001815
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001816 resync_response:
1817 /* Analyse response */
1818
Willy Tarreau8f128b42014-11-28 15:07:47 +01001819 if (((res->flags & ~rpf_last) & CF_MASK_ANALYSER) ||
1820 (res->flags ^ rpf_last) & CF_MASK_STATIC ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01001821 (res->analysers && (res->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01001822 si_f->state != rp_cons_last ||
1823 si_b->state != rp_prod_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001824 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001825 unsigned int flags = res->flags;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001826
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001827 if (si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001828 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001829 unsigned int ana_list;
1830 unsigned int ana_back;
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001831
Willy Tarreau90deb182010-01-07 00:20:41 +01001832 /* it's up to the analysers to stop disable reading or
1833 * closing. Note: if an analyser disables any of these
1834 * bits, it is responsible for enabling them again when
1835 * it disables itself, so that other analysers are called
1836 * in similar conditions.
1837 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001838 channel_auto_read(res);
1839 channel_auto_close(res);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001840
1841 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01001842 * res->analysers, following the bit order from LSB
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001843 * to MSB. The analysers must remove themselves from
1844 * the list when not needed. Any analyser may return 0
1845 * to break out of the loop, either because of missing
1846 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02001847 * kill the stream. We loop at least once through each
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001848 * analyser, and we may loop again if other analysers
1849 * are added in the middle.
1850 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001851
Willy Tarreau8f128b42014-11-28 15:07:47 +01001852 ana_list = ana_back = res->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001853 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001854 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01001855 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_FE);
1856 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001857 FLT_ANALYZE(s, res, tcp_inspect_response, ana_list, ana_back, AN_RES_INSPECT);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001858 FLT_ANALYZE(s, res, http_wait_for_response, ana_list, ana_back, AN_RES_WAIT_HTTP);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001859 FLT_ANALYZE(s, res, process_store_rules, ana_list, ana_back, AN_RES_STORE_RULES);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001860 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 +01001861 ANALYZE (s, res, flt_analyze_http_headers, ana_list, ana_back, AN_RES_FLT_HTTP_HDRS);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001862 ANALYZE (s, res, http_response_forward_body, ana_list, ana_back, AN_RES_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02001863 ANALYZE (s, res, pcli_wait_for_response, ana_list, ana_back, AN_RES_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001864 ANALYZE (s, res, flt_xfer_data, ana_list, ana_back, AN_RES_FLT_XFER_DATA);
1865 ANALYZE (s, res, flt_end_analyze, ana_list, ana_back, AN_RES_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01001866 break;
1867 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001868 }
1869
Willy Tarreau8f128b42014-11-28 15:07:47 +01001870 rp_cons_last = si_f->state;
1871 rp_prod_last = si_b->state;
Christopher Fauletcdaea892017-07-06 15:49:30 +02001872 res->flags &= ~CF_WAKE_ONCE;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001873 rpf_last = res->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001874
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02001875 if ((res->flags ^ flags) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001876 goto resync_response;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001877 }
1878
Willy Tarreau576507f2010-01-07 00:09:04 +01001879 /* maybe someone has added some request analysers, so we must check and loop */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001880 if (req->analysers & ~req_ana_back)
Willy Tarreau576507f2010-01-07 00:09:04 +01001881 goto resync_request;
1882
Willy Tarreau8f128b42014-11-28 15:07:47 +01001883 if ((req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0499e352010-12-17 07:13:42 +01001884 goto resync_request;
1885
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001886 /* FIXME: here we should call protocol handlers which rely on
1887 * both buffers.
1888 */
1889
1890
1891 /*
Willy Tarreau87b09662015-04-03 00:22:06 +02001892 * Now we propagate unhandled errors to the stream. Normally
Willy Tarreauae526782010-03-04 20:34:23 +01001893 * we're just in a data phase here since it means we have not
1894 * seen any analyser who could set an error status.
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001895 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001896 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001897 if (unlikely(!(s->flags & SF_ERR_MASK))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001898 if (req->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001899 /* Report it if the client got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001900 req->analysers = 0;
1901 if (req->flags & CF_READ_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001902 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1903 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001904 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001905 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001906 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001907 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001908 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01001909 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001910 else if (req->flags & CF_READ_TIMEOUT) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001911 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1912 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001913 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001914 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001915 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001916 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001917 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01001918 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001919 else if (req->flags & CF_WRITE_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001920 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1921 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001922 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001923 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001924 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001925 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001926 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01001927 }
1928 else {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001929 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1930 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001931 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001932 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001933 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001934 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001935 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01001936 }
Willy Tarreau84455332009-03-15 22:34:05 +01001937 sess_set_term_flags(s);
Christopher Faulet5e1a9d72019-04-23 17:34:22 +02001938
1939 /* Abort the request if a client error occurred while
1940 * the backend stream-interface is in the SI_ST_INI
1941 * state. It is switched into the SI_ST_CLO state and
1942 * the request channel is erased. */
1943 if (si_b->state == SI_ST_INI) {
1944 si_b->state = SI_ST_CLO;
1945 channel_abort(req);
1946 if (IS_HTX_STRM(s))
1947 channel_htx_erase(req, htxbuf(&req->buf));
1948 else
1949 channel_erase(req);
1950 }
Willy Tarreau84455332009-03-15 22:34:05 +01001951 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001952 else if (res->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001953 /* Report it if the server got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001954 res->analysers = 0;
1955 if (res->flags & CF_READ_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001956 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1957 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001958 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001959 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001960 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001961 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001962 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01001963 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001964 else if (res->flags & CF_READ_TIMEOUT) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001965 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1966 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001967 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001968 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001969 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001970 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001971 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01001972 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001973 else if (res->flags & CF_WRITE_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001974 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1975 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001976 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001977 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001978 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001979 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001980 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01001981 }
1982 else {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001983 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1984 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001985 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001986 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001987 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001988 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001989 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01001990 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001991 sess_set_term_flags(s);
1992 }
Willy Tarreau84455332009-03-15 22:34:05 +01001993 }
1994
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001995 /*
1996 * Here we take care of forwarding unhandled data. This also includes
1997 * connection establishments and shutdown requests.
1998 */
1999
2000
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002001 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002002 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002003 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002004 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002005 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02002006 if (unlikely((!req->analysers || (req->analysers == AN_REQ_FLT_END && !(req->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002007 !(req->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002008 (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002009 (req->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002010 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002011 * attached to it. If any data are left in, we'll permit them to
2012 * move.
2013 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002014 channel_auto_read(req);
2015 channel_auto_connect(req);
2016 channel_auto_close(req);
Willy Tarreau5bd8c372009-01-19 00:32:22 +01002017
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002018 if (IS_HTX_STRM(s)) {
2019 struct htx *htx = htxbuf(&req->buf);
2020
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002021 /* We'll let data flow between the producer (if still connected)
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002022 * to the consumer.
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002023 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002024 co_set_data(req, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002025 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002026 channel_htx_forward_forever(req, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002027 }
2028 else {
2029 /* We'll let data flow between the producer (if still connected)
2030 * to the consumer (which might possibly not be connected yet).
2031 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002032 c_adv(req, ci_data(req));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002033 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2034 channel_forward_forever(req);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002035 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002036 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002037
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002038 /* check if it is wise to enable kernel splicing to forward request data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002039 if (!(req->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2040 req->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002041 (global.tune.options & GTUNE_USE_SPLICE) &&
Christopher Faulet276c1e02019-11-05 16:49:23 +01002042 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->rcv_pipe &&
2043 __objt_cs(si_f->end)->conn->mux && __objt_cs(si_f->end)->conn->mux->rcv_pipe) &&
2044 (objt_cs(si_b->end) && __objt_cs(si_b->end)->conn->xprt && __objt_cs(si_b->end)->conn->xprt->snd_pipe &&
2045 __objt_cs(si_b->end)->conn->mux && __objt_cs(si_b->end)->conn->mux->snd_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002046 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002047 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_REQ) ||
2048 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002049 (req->flags & CF_STREAMER_FAST)))) {
2050 req->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002051 }
2052
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002053 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002054 rqf_last = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002055
Willy Tarreau520d95e2009-09-19 21:04:57 +02002056 /* it's possible that an upper layer has requested a connection setup or abort.
2057 * There are 2 situations where we decide to establish a new connection :
2058 * - there are data scheduled for emission in the buffer
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002059 * - the CF_AUTO_CONNECT flag is set (active connection)
Willy Tarreau520d95e2009-09-19 21:04:57 +02002060 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002061 if (si_b->state == SI_ST_INI) {
Christopher Faulet5e1a9d72019-04-23 17:34:22 +02002062 if (!(req->flags & CF_SHUTW)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002063 if ((req->flags & CF_AUTO_CONNECT) || !channel_is_empty(req)) {
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002064 /* If we have an appctx, there is no connect method, so we
2065 * immediately switch to the connected state, otherwise we
2066 * perform a connection request.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002067 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002068 si_b->state = SI_ST_REQ; /* new connection requested */
2069 si_b->conn_retries = s->be->conn_retries;
Olivier Houchard602bf7d2019-05-10 13:59:15 +02002070 if ((s->be->retry_type &~ PR_RE_CONN_FAILED) &&
Olivier Houchard7dd7b902020-05-13 19:07:20 +02002071 (s->be->mode == PR_MODE_HTTP) &&
Olivier Houchard602bf7d2019-05-10 13:59:15 +02002072 !(si_b->flags & SI_FL_D_L7_RETRY))
Olivier Houcharda254a372019-04-05 15:30:12 +02002073 si_b->flags |= SI_FL_L7_RETRY;
Willy Tarreau520d95e2009-09-19 21:04:57 +02002074 }
Willy Tarreau73201222009-08-16 18:27:24 +02002075 }
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002076 else {
Willy Tarreau0542c8b2017-11-24 15:01:10 +01002077 si_release_endpoint(si_b);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002078 si_b->state = SI_ST_CLO; /* shutw+ini = abort */
2079 channel_shutw_now(req); /* fix buffer flags upon abort */
2080 channel_shutr_now(res);
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002081 }
Willy Tarreau92795622009-03-06 12:51:23 +01002082 }
2083
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002084
2085 /* we may have a pending connection request, or a connection waiting
2086 * for completion.
2087 */
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002088 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 +02002089 /* prune the request variables and swap to the response variables. */
2090 if (s->vars_reqres.scope != SCOPE_RES) {
Jerome Magnin2f44e882019-11-09 18:00:47 +01002091 if (!LIST_ISEMPTY(&s->vars_reqres.head))
Willy Tarreaucda7f3f2018-10-28 13:44:36 +01002092 vars_prune(&s->vars_reqres, s->sess, s);
Jerome Magnin2f44e882019-11-09 18:00:47 +01002093 vars_init(&s->vars_reqres, SCOPE_RES);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +02002094 }
2095
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002096 do {
2097 /* nb: step 1 might switch from QUE to ASS, but we first want
2098 * to give a chance to step 2 to perform a redirect if needed.
2099 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002100 if (si_b->state != SI_ST_REQ)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002101 back_try_conn_req(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002102 if (si_b->state == SI_ST_REQ)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002103 back_handle_st_req(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002104
Willy Tarreauada4c582020-03-04 16:42:03 +01002105 /* get a chance to complete an immediate connection setup */
2106 if (si_b->state == SI_ST_RDY)
2107 goto resync_stream_interface;
2108
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +01002109 /* applets directly go to the ESTABLISHED state. Similarly,
2110 * servers experience the same fate when their connection
2111 * is reused.
2112 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002113 if (unlikely(si_b->state == SI_ST_EST))
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002114 back_establish(s);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01002115
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002116 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002117 if (si_b->state == SI_ST_ASS && srv && srv->rdr_len && (s->flags & SF_REDIRECTABLE))
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02002118 http_perform_server_redirect(s, si_b);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002119 } while (si_b->state == SI_ST_ASS);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002120 }
2121
Willy Tarreau829bd472019-06-06 09:17:23 +02002122 /* Let's see if we can send the pending request now */
2123 si_sync_send(si_b);
2124
2125 /*
2126 * Now forward all shutdown requests between both sides of the request buffer
2127 */
2128
2129 /* first, let's check if the request buffer needs to shutdown(write), which may
2130 * happen either because the input is closed or because we want to force a close
2131 * once the server has begun to respond. If a half-closed timeout is set, we adjust
2132 * the other side's timeout as well.
2133 */
2134 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
2135 (CF_AUTO_CLOSE|CF_SHUTR))) {
2136 channel_shutw_now(req);
2137 }
2138
2139 /* shutdown(write) pending */
2140 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2141 channel_is_empty(req))) {
2142 if (req->flags & CF_READ_ERROR)
2143 si_b->flags |= SI_FL_NOLINGER;
2144 si_shutw(si_b);
2145 }
2146
2147 /* shutdown(write) done on server side, we must stop the client too */
2148 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW &&
2149 !req->analysers))
2150 channel_shutr_now(req);
2151
2152 /* shutdown(read) pending */
2153 if (unlikely((req->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2154 if (si_f->flags & SI_FL_NOHALF)
2155 si_f->flags |= SI_FL_NOLINGER;
2156 si_shutr(si_f);
2157 }
2158
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002159 /* Benchmarks have shown that it's optimal to do a full resync now */
Willy Tarreau829bd472019-06-06 09:17:23 +02002160 if (si_f->state == SI_ST_DIS ||
2161 si_state_in(si_b->state, SI_SB_RDY|SI_SB_DIS) ||
2162 (si_f->flags & SI_FL_ERR && si_f->state != SI_ST_CLO) ||
2163 (si_b->flags & SI_FL_ERR && si_b->state != SI_ST_CLO))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002164 goto resync_stream_interface;
2165
Willy Tarreau815a9b22010-07-27 17:15:12 +02002166 /* otherwise we want to check if we need to resync the req buffer or not */
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02002167 if ((req->flags ^ rqf_last) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002168 goto resync_request;
2169
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002170 /* perform output updates to the response buffer */
Willy Tarreau84455332009-03-15 22:34:05 +01002171
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002172 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002173 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002174 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002175 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002176 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02002177 if (unlikely((!res->analysers || (res->analysers == AN_RES_FLT_END && !(res->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002178 !(res->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002179 si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002180 (res->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002181 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002182 * attached to it. If any data are left in, we'll permit them to
2183 * move.
2184 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002185 channel_auto_read(res);
2186 channel_auto_close(res);
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002187
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002188 if (IS_HTX_STRM(s)) {
2189 struct htx *htx = htxbuf(&res->buf);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002190
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002191 /* We'll let data flow between the producer (if still connected)
2192 * to the consumer.
2193 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002194 co_set_data(res, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002195 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002196 channel_htx_forward_forever(res, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002197 }
2198 else {
2199 /* We'll let data flow between the producer (if still connected)
2200 * to the consumer.
2201 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002202 c_adv(res, ci_data(res));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002203 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2204 channel_forward_forever(res);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002205 }
Willy Tarreau42529c32015-07-09 18:38:57 +02002206
Willy Tarreauce887fd2012-05-12 12:50:00 +02002207 /* if we have no analyser anymore in any direction and have a
Willy Tarreau05cdd962014-05-10 14:30:07 +02002208 * tunnel timeout set, use it now. Note that we must respect
2209 * the half-closed timeouts as well.
Willy Tarreauce887fd2012-05-12 12:50:00 +02002210 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002211 if (!req->analysers && s->be->timeout.tunnel) {
2212 req->rto = req->wto = res->rto = res->wto =
Willy Tarreauce887fd2012-05-12 12:50:00 +02002213 s->be->timeout.tunnel;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002214
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002215 if ((req->flags & CF_SHUTR) && tick_isset(sess->fe->timeout.clientfin))
2216 res->wto = sess->fe->timeout.clientfin;
Willy Tarreau8f128b42014-11-28 15:07:47 +01002217 if ((req->flags & CF_SHUTW) && tick_isset(s->be->timeout.serverfin))
2218 res->rto = s->be->timeout.serverfin;
2219 if ((res->flags & CF_SHUTR) && tick_isset(s->be->timeout.serverfin))
2220 req->wto = s->be->timeout.serverfin;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002221 if ((res->flags & CF_SHUTW) && tick_isset(sess->fe->timeout.clientfin))
2222 req->rto = sess->fe->timeout.clientfin;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002223
Willy Tarreau8f128b42014-11-28 15:07:47 +01002224 req->rex = tick_add(now_ms, req->rto);
2225 req->wex = tick_add(now_ms, req->wto);
2226 res->rex = tick_add(now_ms, res->rto);
2227 res->wex = tick_add(now_ms, res->wto);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002228 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002229 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002230
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002231 /* check if it is wise to enable kernel splicing to forward response data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002232 if (!(res->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2233 res->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002234 (global.tune.options & GTUNE_USE_SPLICE) &&
Christopher Faulet276c1e02019-11-05 16:49:23 +01002235 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->snd_pipe &&
2236 __objt_cs(si_f->end)->conn->mux && __objt_cs(si_f->end)->conn->mux->snd_pipe) &&
2237 (objt_cs(si_b->end) && __objt_cs(si_b->end)->conn->xprt && __objt_cs(si_b->end)->conn->xprt->rcv_pipe &&
2238 __objt_cs(si_b->end)->conn->mux && __objt_cs(si_b->end)->conn->mux->rcv_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002239 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002240 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_RTR) ||
2241 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002242 (res->flags & CF_STREAMER_FAST)))) {
2243 res->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002244 }
2245
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002246 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002247 rpf_last = res->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002248
Willy Tarreau829bd472019-06-06 09:17:23 +02002249 /* Let's see if we can send the pending response now */
2250 si_sync_send(si_f);
2251
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002252 /*
2253 * Now forward all shutdown requests between both sides of the buffer
2254 */
2255
2256 /*
2257 * FIXME: this is probably where we should produce error responses.
2258 */
2259
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002260 /* first, let's check if the response buffer needs to shutdown(write) */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002261 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau05cdd962014-05-10 14:30:07 +02002262 (CF_AUTO_CLOSE|CF_SHUTR))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002263 channel_shutw_now(res);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002264 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002265
2266 /* shutdown(write) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002267 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2268 channel_is_empty(res))) {
2269 si_shutw(si_f);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002270 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002271
2272 /* shutdown(write) done on the client side, we must stop the server too */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002273 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW) &&
2274 !res->analysers)
2275 channel_shutr_now(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002276
2277 /* shutdown(read) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002278 if (unlikely((res->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2279 if (si_b->flags & SI_FL_NOHALF)
2280 si_b->flags |= SI_FL_NOLINGER;
2281 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002282 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002283
Willy Tarreau829bd472019-06-06 09:17:23 +02002284 if (si_f->state == SI_ST_DIS ||
2285 si_state_in(si_b->state, SI_SB_RDY|SI_SB_DIS) ||
2286 (si_f->flags & SI_FL_ERR && si_f->state != SI_ST_CLO) ||
2287 (si_b->flags & SI_FL_ERR && si_b->state != SI_ST_CLO))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002288 goto resync_stream_interface;
2289
Willy Tarreau3c5c0662019-06-06 14:32:49 +02002290 if ((req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002291 goto resync_request;
2292
Willy Tarreau8f128b42014-11-28 15:07:47 +01002293 if ((res->flags ^ rpf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002294 goto resync_response;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002295
Willy Tarreau829bd472019-06-06 09:17:23 +02002296 if (((req->flags ^ rqf_last) | (res->flags ^ rpf_last)) & CF_MASK_ANALYSER)
2297 goto resync_request;
2298
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002299 /* we're interested in getting wakeups again */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002300 si_f->flags &= ~SI_FL_DONT_WAKE;
2301 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002302
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002303 /* This is needed only when debugging is enabled, to indicate
2304 * client-side or server-side close. Please note that in the unlikely
2305 * event where both sides would close at once, the sequence is reported
2306 * on the server side first.
2307 */
2308 if (unlikely((global.mode & MODE_DEBUG) &&
2309 (!(global.mode & MODE_QUIET) ||
2310 (global.mode & MODE_VERBOSE)))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002311 if (si_b->state == SI_ST_CLO &&
2312 si_b->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002313 chunk_printf(&trash, "%08x:%s.srvcls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002314 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002315 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2316 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01002317 DISGUISE(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002318 }
2319
Willy Tarreau8f128b42014-11-28 15:07:47 +01002320 if (si_f->state == SI_ST_CLO &&
2321 si_f->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002322 chunk_printf(&trash, "%08x:%s.clicls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002323 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002324 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2325 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01002326 DISGUISE(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002327 }
2328 }
2329
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002330 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 +02002331 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED) && !(s->flags & SF_IGNORE))
Willy Tarreau87b09662015-04-03 00:22:06 +02002332 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002333
Willy Tarreaud14844a2018-11-08 18:15:29 +01002334 si_update_both(si_f, si_b);
Olivier Houchard53216e72018-10-10 15:46:36 +02002335
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002336 /* Trick: if a request is being waiting for the server to respond,
2337 * and if we know the server can timeout, we don't want the timeout
2338 * to expire on the client side first, but we're still interested
2339 * in passing data from the client to the server (eg: POST). Thus,
2340 * we can cancel the client's request timeout if the server's
2341 * request timeout is set and the server has not yet sent a response.
2342 */
2343
Willy Tarreau8f128b42014-11-28 15:07:47 +01002344 if ((res->flags & (CF_AUTO_CLOSE|CF_SHUTR)) == 0 &&
2345 (tick_isset(req->wex) || tick_isset(res->rex))) {
2346 req->flags |= CF_READ_NOEXP;
2347 req->rex = TICK_ETERNITY;
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002348 }
2349
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002350 /* Reset pending events now */
2351 s->pending_events = 0;
2352
Willy Tarreau798f4322012-11-08 14:49:17 +01002353 update_exp_and_leave:
Willy Tarreau5fb04712016-05-04 10:18:37 +02002354 /* Note: please ensure that if you branch here you disable SI_FL_DONT_WAKE */
Christopher Fauleta00d8172016-11-10 14:58:05 +01002355 t->expire = tick_first((tick_is_expired(t->expire, now_ms) ? 0 : t->expire),
2356 tick_first(tick_first(req->rex, req->wex),
2357 tick_first(res->rex, res->wex)));
Willy Tarreaudef0d222016-11-08 22:03:00 +01002358 if (!req->analysers)
2359 req->analyse_exp = TICK_ETERNITY;
2360
2361 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED) &&
2362 (!tick_isset(req->analyse_exp) || tick_is_expired(req->analyse_exp, now_ms)))
2363 req->analyse_exp = tick_add(now_ms, 5000);
2364
2365 t->expire = tick_first(t->expire, req->analyse_exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002366
Willy Tarreau9a398be2017-11-10 17:14:23 +01002367 t->expire = tick_first(t->expire, res->analyse_exp);
2368
Willy Tarreau8f128b42014-11-28 15:07:47 +01002369 if (si_f->exp)
2370 t->expire = tick_first(t->expire, si_f->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002371
Willy Tarreau8f128b42014-11-28 15:07:47 +01002372 if (si_b->exp)
2373 t->expire = tick_first(t->expire, si_b->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002374
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002375 s->pending_events &= ~(TASK_WOKEN_TIMER | TASK_WOKEN_RES);
Willy Tarreau87b09662015-04-03 00:22:06 +02002376 stream_release_buffers(s);
Christopher Fauleteea8fc72019-11-05 16:18:10 +01002377
2378 DBG_TRACE_DEVEL("queuing", STRM_EV_STRM_PROC, s);
Willy Tarreau26c25062009-03-08 09:38:41 +01002379 return t; /* nothing more to do */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002380 }
2381
Christopher Fauleteea8fc72019-11-05 16:18:10 +01002382 DBG_TRACE_DEVEL("releasing", STRM_EV_STRM_PROC, s);
2383
Willy Tarreaue7dff022015-04-03 01:14:29 +02002384 if (s->flags & SF_BE_ASSIGNED)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002385 _HA_ATOMIC_SUB(&s->be->beconn, 1);
Willy Tarreau6f5e4b92017-09-15 09:07:56 +02002386
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002387 if (unlikely((global.mode & MODE_DEBUG) &&
2388 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)))) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002389 chunk_printf(&trash, "%08x:%s.closed[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002390 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002391 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2392 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01002393 DISGUISE(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002394 }
2395
2396 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
Olivier Houchard4c18f942019-07-31 18:05:26 +02002397 if (!(s->flags & SF_IGNORE))
2398 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002399
Willy Tarreaueee5b512015-04-03 23:46:31 +02002400 if (s->txn && s->txn->status) {
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002401 int n;
2402
Willy Tarreaueee5b512015-04-03 23:46:31 +02002403 n = s->txn->status / 100;
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002404 if (n < 1 || n > 5)
2405 n = 0;
2406
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002407 if (sess->fe->mode == PR_MODE_HTTP) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002408 _HA_ATOMIC_ADD(&sess->fe->fe_counters.p.http.rsp[n], 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002409 }
Willy Tarreaue7dff022015-04-03 01:14:29 +02002410 if ((s->flags & SF_BE_ASSIGNED) &&
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002411 (s->be->mode == PR_MODE_HTTP)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002412 _HA_ATOMIC_ADD(&s->be->be_counters.p.http.rsp[n], 1);
2413 _HA_ATOMIC_ADD(&s->be->be_counters.p.http.cum_req, 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002414 }
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002415 }
2416
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002417 /* let's do a final log if we need it */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002418 if (!LIST_ISEMPTY(&sess->fe->logformat) && s->logs.logwait &&
Willy Tarreaue7dff022015-04-03 01:14:29 +02002419 !(s->flags & SF_MONITOR) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002420 (!(sess->fe->options & PR_O_NULLNOLOG) || req->total)) {
Willy Tarreau66425e32018-07-25 06:55:12 +02002421 /* we may need to know the position in the queue */
2422 pendconn_free(s);
Willy Tarreaua5555ec2008-11-30 19:02:32 +01002423 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002424 }
2425
Willy Tarreau87b09662015-04-03 00:22:06 +02002426 /* update time stats for this stream */
2427 stream_update_time_stats(s);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002428
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002429 /* the task MUST not be in the run queue anymore */
Willy Tarreau87b09662015-04-03 00:22:06 +02002430 stream_free(s);
Olivier Houchard3f795f72019-04-17 22:51:06 +02002431 task_destroy(t);
Willy Tarreau26c25062009-03-08 09:38:41 +01002432 return NULL;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002433}
2434
Willy Tarreau87b09662015-04-03 00:22:06 +02002435/* Update the stream's backend and server time stats */
2436void stream_update_time_stats(struct stream *s)
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002437{
2438 int t_request;
2439 int t_queue;
2440 int t_connect;
2441 int t_data;
2442 int t_close;
2443 struct server *srv;
Marcin Deraneka8dbdf32020-05-15 20:02:40 +02002444 unsigned int samples_window;
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002445
2446 t_request = 0;
2447 t_queue = s->logs.t_queue;
2448 t_connect = s->logs.t_connect;
2449 t_close = s->logs.t_close;
2450 t_data = s->logs.t_data;
2451
2452 if (s->be->mode != PR_MODE_HTTP)
2453 t_data = t_connect;
2454
2455 if (t_connect < 0 || t_data < 0)
2456 return;
2457
2458 if (tv_isge(&s->logs.tv_request, &s->logs.tv_accept))
2459 t_request = tv_ms_elapsed(&s->logs.tv_accept, &s->logs.tv_request);
2460
2461 t_data -= t_connect;
2462 t_connect -= t_queue;
2463 t_queue -= t_request;
2464
2465 srv = objt_server(s->target);
2466 if (srv) {
Marcin Deraneka8dbdf32020-05-15 20:02:40 +02002467 samples_window = (((s->be->mode == PR_MODE_HTTP) ?
2468 srv->counters.p.http.cum_req : srv->counters.cum_lbconn) > TIME_STATS_SAMPLES) ? TIME_STATS_SAMPLES : 0;
2469 swrate_add_dynamic(&srv->counters.q_time, samples_window, t_queue);
2470 swrate_add_dynamic(&srv->counters.c_time, samples_window, t_connect);
2471 swrate_add_dynamic(&srv->counters.d_time, samples_window, t_data);
2472 swrate_add_dynamic(&srv->counters.t_time, samples_window, t_close);
Christopher Fauletefb41f02019-11-08 14:53:15 +01002473 HA_ATOMIC_UPDATE_MAX(&srv->counters.qtime_max, t_queue);
2474 HA_ATOMIC_UPDATE_MAX(&srv->counters.ctime_max, t_connect);
2475 HA_ATOMIC_UPDATE_MAX(&srv->counters.dtime_max, t_data);
2476 HA_ATOMIC_UPDATE_MAX(&srv->counters.ttime_max, t_close);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002477 }
Marcin Deraneka8dbdf32020-05-15 20:02:40 +02002478 samples_window = (((s->be->mode == PR_MODE_HTTP) ?
2479 s->be->be_counters.p.http.cum_req : s->be->be_counters.cum_lbconn) > TIME_STATS_SAMPLES) ? TIME_STATS_SAMPLES : 0;
2480 swrate_add_dynamic(&s->be->be_counters.q_time, samples_window, t_queue);
2481 swrate_add_dynamic(&s->be->be_counters.c_time, samples_window, t_connect);
2482 swrate_add_dynamic(&s->be->be_counters.d_time, samples_window, t_data);
2483 swrate_add_dynamic(&s->be->be_counters.t_time, samples_window, t_close);
Christopher Fauletefb41f02019-11-08 14:53:15 +01002484 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.qtime_max, t_queue);
2485 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.ctime_max, t_connect);
2486 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.dtime_max, t_data);
2487 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.ttime_max, t_close);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002488}
2489
Willy Tarreau7c669d72008-06-20 15:04:11 +02002490/*
2491 * This function adjusts sess->srv_conn and maintains the previous and new
Willy Tarreau87b09662015-04-03 00:22:06 +02002492 * server's served stream counts. Setting newsrv to NULL is enough to release
Willy Tarreau7c669d72008-06-20 15:04:11 +02002493 * current connection slot. This function also notifies any LB algo which might
Willy Tarreau87b09662015-04-03 00:22:06 +02002494 * expect to be informed about any change in the number of active streams on a
Willy Tarreau7c669d72008-06-20 15:04:11 +02002495 * server.
2496 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002497void sess_change_server(struct stream *sess, struct server *newsrv)
Willy Tarreau7c669d72008-06-20 15:04:11 +02002498{
2499 if (sess->srv_conn == newsrv)
2500 return;
2501
2502 if (sess->srv_conn) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002503 _HA_ATOMIC_SUB(&sess->srv_conn->served, 1);
2504 _HA_ATOMIC_SUB(&sess->srv_conn->proxy->served, 1);
2505 __ha_barrier_atomic_store();
Willy Tarreau7c669d72008-06-20 15:04:11 +02002506 if (sess->srv_conn->proxy->lbprm.server_drop_conn)
2507 sess->srv_conn->proxy->lbprm.server_drop_conn(sess->srv_conn);
Willy Tarreau87b09662015-04-03 00:22:06 +02002508 stream_del_srv_conn(sess);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002509 }
2510
2511 if (newsrv) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002512 _HA_ATOMIC_ADD(&newsrv->served, 1);
2513 _HA_ATOMIC_ADD(&newsrv->proxy->served, 1);
2514 __ha_barrier_atomic_store();
Willy Tarreau7c669d72008-06-20 15:04:11 +02002515 if (newsrv->proxy->lbprm.server_take_conn)
2516 newsrv->proxy->lbprm.server_take_conn(newsrv);
Willy Tarreau87b09662015-04-03 00:22:06 +02002517 stream_add_srv_conn(sess, newsrv);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002518 }
2519}
2520
Willy Tarreau84455332009-03-15 22:34:05 +01002521/* Handle server-side errors for default protocols. It is called whenever a a
2522 * connection setup is aborted or a request is aborted in queue. It sets the
Willy Tarreau87b09662015-04-03 00:22:06 +02002523 * stream termination flags so that the caller does not have to worry about
Willy Tarreau84455332009-03-15 22:34:05 +01002524 * them. It's installed as ->srv_error for the server-side stream_interface.
2525 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002526void default_srv_error(struct stream *s, struct stream_interface *si)
Willy Tarreau84455332009-03-15 22:34:05 +01002527{
2528 int err_type = si->err_type;
2529 int err = 0, fin = 0;
2530
2531 if (err_type & SI_ET_QUEUE_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002532 err = SF_ERR_CLICL;
2533 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002534 }
2535 else if (err_type & SI_ET_CONN_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002536 err = SF_ERR_CLICL;
2537 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002538 }
2539 else if (err_type & SI_ET_QUEUE_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002540 err = SF_ERR_SRVTO;
2541 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002542 }
2543 else if (err_type & SI_ET_QUEUE_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002544 err = SF_ERR_SRVCL;
2545 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002546 }
2547 else if (err_type & SI_ET_CONN_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002548 err = SF_ERR_SRVTO;
2549 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002550 }
2551 else if (err_type & SI_ET_CONN_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002552 err = SF_ERR_SRVCL;
2553 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002554 }
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002555 else if (err_type & SI_ET_CONN_RES) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002556 err = SF_ERR_RESOURCE;
2557 fin = SF_FINST_C;
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002558 }
Willy Tarreau84455332009-03-15 22:34:05 +01002559 else /* SI_ET_CONN_OTHER and others */ {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002560 err = SF_ERR_INTERNAL;
2561 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002562 }
2563
Willy Tarreaue7dff022015-04-03 01:14:29 +02002564 if (!(s->flags & SF_ERR_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002565 s->flags |= err;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002566 if (!(s->flags & SF_FINST_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002567 s->flags |= fin;
2568}
Willy Tarreau7c669d72008-06-20 15:04:11 +02002569
Willy Tarreaue7dff022015-04-03 01:14:29 +02002570/* kill a stream and set the termination flags to <why> (one of SF_ERR_*) */
Willy Tarreau87b09662015-04-03 00:22:06 +02002571void stream_shutdown(struct stream *stream, int why)
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002572{
Willy Tarreau87b09662015-04-03 00:22:06 +02002573 if (stream->req.flags & (CF_SHUTW|CF_SHUTW_NOW))
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002574 return;
2575
Willy Tarreau87b09662015-04-03 00:22:06 +02002576 channel_shutw_now(&stream->req);
2577 channel_shutr_now(&stream->res);
2578 stream->task->nice = 1024;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002579 if (!(stream->flags & SF_ERR_MASK))
Willy Tarreau87b09662015-04-03 00:22:06 +02002580 stream->flags |= why;
2581 task_wakeup(stream->task, TASK_WOKEN_OTHER);
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002582}
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02002583
Willy Tarreau5484d582019-05-22 09:33:03 +02002584/* Appends a dump of the state of stream <s> into buffer <buf> which must have
2585 * preliminary be prepared by its caller, with each line prepended by prefix
2586 * <pfx>, and each line terminated by character <eol>.
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002587 */
Willy Tarreau5484d582019-05-22 09:33:03 +02002588void stream_dump(struct buffer *buf, const struct stream *s, const char *pfx, char eol)
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002589{
2590 const struct conn_stream *csf, *csb;
2591 const struct connection *cof, *cob;
2592 const struct appctx *acf, *acb;
2593 const struct server *srv;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002594 const char *src = "unknown";
2595 const char *dst = "unknown";
2596 char pn[INET6_ADDRSTRLEN];
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002597 const struct channel *req, *res;
2598 const struct stream_interface *si_f, *si_b;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002599
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002600 if (!s) {
Willy Tarreau5484d582019-05-22 09:33:03 +02002601 chunk_appendf(buf, "%sstrm=%p%c", pfx, s, eol);
2602 return;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002603 }
2604
Willy Tarreau5484d582019-05-22 09:33:03 +02002605 if (s->obj_type != OBJ_TYPE_STREAM) {
2606 chunk_appendf(buf, "%sstrm=%p [invalid type=%d(%s)]%c",
2607 pfx, s, s->obj_type, obj_type_name(&s->obj_type), eol);
2608 return;
2609 }
2610
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002611 si_f = &s->si[0];
2612 si_b = &s->si[1];
2613 req = &s->req;
2614 res = &s->res;
2615
2616 csf = objt_cs(si_f->end);
2617 cof = cs_conn(csf);
2618 acf = objt_appctx(si_f->end);
Willy Tarreau71e34c12019-07-17 15:07:06 +02002619 if (cof && cof->src && addr_to_str(cof->src, pn, sizeof(pn)) >= 0)
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002620 src = pn;
2621 else if (acf)
2622 src = acf->applet->name;
2623
2624 csb = objt_cs(si_b->end);
2625 cob = cs_conn(csb);
2626 acb = objt_appctx(si_b->end);
2627 srv = objt_server(s->target);
2628 if (srv)
2629 dst = srv->id;
2630 else if (acb)
2631 dst = acb->applet->name;
2632
Willy Tarreau5484d582019-05-22 09:33:03 +02002633 chunk_appendf(buf,
2634 "%sstrm=%p src=%s fe=%s be=%s dst=%s%c"
2635 "%srqf=%x rqa=%x rpf=%x rpa=%x sif=%s,%x sib=%s,%x%c"
2636 "%saf=%p,%u csf=%p,%x%c"
2637 "%sab=%p,%u csb=%p,%x%c"
2638 "%scof=%p,%x:%s(%p)/%s(%p)/%s(%d)%c"
2639 "%scob=%p,%x:%s(%p)/%s(%p)/%s(%d)%c"
2640 "",
2641 pfx, s, src, s->sess->fe->id, s->be->id, dst, eol,
2642 pfx, req->flags, req->analysers, res->flags, res->analysers,
2643 si_state_str(si_f->state), si_f->flags,
2644 si_state_str(si_b->state), si_b->flags, eol,
2645 pfx, acf, acf ? acf->st0 : 0, csf, csf ? csf->flags : 0, eol,
2646 pfx, acb, acb ? acb->st0 : 0, csb, csb ? csb->flags : 0, eol,
2647 pfx, cof, cof ? cof->flags : 0, conn_get_mux_name(cof), cof?cof->ctx:0, conn_get_xprt_name(cof),
2648 cof ? cof->xprt_ctx : 0, conn_get_ctrl_name(cof), cof ? cof->handle.fd : 0, eol,
2649 pfx, cob, cob ? cob->flags : 0, conn_get_mux_name(cob), cob?cob->ctx:0, conn_get_xprt_name(cob),
2650 cob ? cob->xprt_ctx : 0, conn_get_ctrl_name(cob), cob ? cob->handle.fd : 0, eol);
2651}
2652
2653/* dumps an error message for type <type> at ptr <ptr> related to stream <s>,
Willy Tarreaub106ce12019-05-22 08:57:01 +02002654 * having reached loop rate <rate>, then aborts hoping to retrieve a core.
Willy Tarreau5484d582019-05-22 09:33:03 +02002655 */
2656void stream_dump_and_crash(enum obj_type *obj, int rate)
2657{
2658 const struct stream *s;
Willy Tarreau5484d582019-05-22 09:33:03 +02002659 char *msg = NULL;
2660 const void *ptr;
2661
2662 ptr = s = objt_stream(obj);
2663 if (!s) {
2664 const struct appctx *appctx = objt_appctx(obj);
2665 if (!appctx)
2666 return;
2667 ptr = appctx;
2668 s = si_strm(appctx->owner);
2669 if (!s)
2670 return;
2671 }
2672
Willy Tarreau5484d582019-05-22 09:33:03 +02002673 chunk_reset(&trash);
2674 stream_dump(&trash, s, "", ' ');
Willy Tarreau9753d612020-05-01 16:57:02 +02002675
2676 chunk_appendf(&trash, "filters={");
2677 if (HAS_FILTERS(s)) {
2678 struct filter *filter;
2679
2680 list_for_each_entry(filter, &s->strm_flt.filters, list) {
2681 if (filter->list.p != &s->strm_flt.filters)
2682 chunk_appendf(&trash, ", ");
2683 chunk_appendf(&trash, "%p=\"%s\"", filter, FLT_ID(filter));
2684 }
2685 }
2686 chunk_appendf(&trash, "}");
2687
Willy Tarreaub106ce12019-05-22 08:57:01 +02002688 memprintf(&msg,
2689 "A bogus %s [%p] is spinning at %d calls per second and refuses to die, "
2690 "aborting now! Please report this error to developers "
2691 "[%s]\n",
Willy Tarreau5484d582019-05-22 09:33:03 +02002692 obj_type_name(obj), ptr, rate, trash.area);
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002693
2694 ha_alert("%s", msg);
2695 send_log(NULL, LOG_EMERG, "%s", msg);
2696 abort();
2697}
2698
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002699/* Generates a unique ID based on the given <format>, stores it in the given <strm> and
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002700 * returns the unique ID.
2701
2702 * If this function fails to allocate memory IST_NULL is returned.
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002703 *
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002704 * If an ID is already stored within the stream nothing happens existing unique ID is
2705 * returned.
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002706 */
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002707struct ist stream_generate_unique_id(struct stream *strm, struct list *format)
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002708{
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002709 if (isttest(strm->unique_id)) {
2710 return strm->unique_id;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002711 }
2712 else {
2713 char *unique_id;
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002714 int length;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002715 if ((unique_id = pool_alloc(pool_head_uniqueid)) == NULL)
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002716 return IST_NULL;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002717
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002718 length = build_logline(strm, unique_id, UNIQUEID_LEN, format);
2719 strm->unique_id = ist2(unique_id, length);
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002720
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002721 return strm->unique_id;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002722 }
2723}
2724
Willy Tarreau8b22a712010-06-18 17:46:06 +02002725/************************************************************************/
2726/* All supported ACL keywords must be declared here. */
2727/************************************************************************/
2728
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02002729/* 0=OK, <0=Alert, >0=Warning */
2730static enum act_parse_ret stream_parse_use_service(const char **args, int *cur_arg,
2731 struct proxy *px, struct act_rule *rule,
2732 char **err)
2733{
2734 struct action_kw *kw;
2735
2736 /* Check if the service name exists. */
2737 if (*(args[*cur_arg]) == 0) {
2738 memprintf(err, "'%s' expects a service name.", args[0]);
Thierry FOURNIER337eae12015-11-26 19:48:04 +01002739 return ACT_RET_PRS_ERR;
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02002740 }
2741
2742 /* lookup for keyword corresponding to a service. */
2743 kw = action_lookup(&service_keywords, args[*cur_arg]);
2744 if (!kw) {
2745 memprintf(err, "'%s' unknown service name.", args[1]);
2746 return ACT_RET_PRS_ERR;
2747 }
2748 (*cur_arg)++;
2749
2750 /* executes specific rule parser. */
2751 rule->kw = kw;
2752 if (kw->parse((const char **)args, cur_arg, px, rule, err) == ACT_RET_PRS_ERR)
2753 return ACT_RET_PRS_ERR;
2754
2755 /* Register processing function. */
2756 rule->action_ptr = process_use_service;
2757 rule->action = ACT_CUSTOM;
2758
2759 return ACT_RET_PRS_OK;
2760}
2761
2762void service_keywords_register(struct action_kw_list *kw_list)
2763{
2764 LIST_ADDQ(&service_keywords, &kw_list->list);
2765}
2766
Willy Tarreau679bba12019-03-19 08:08:10 +01002767/* Lists the known services on <out> */
2768void list_services(FILE *out)
2769{
2770 struct action_kw_list *kw_list;
2771 int found = 0;
2772 int i;
2773
2774 fprintf(out, "Available services :");
2775 list_for_each_entry(kw_list, &service_keywords, list) {
2776 for (i = 0; kw_list->kw[i].kw != NULL; i++) {
2777 if (!found)
2778 fputc('\n', out);
2779 found = 1;
2780 fprintf(out, "\t%s\n", kw_list->kw[i].kw);
2781 }
2782 }
2783 if (!found)
2784 fprintf(out, " none\n");
2785}
William Lallemand4c5b4d52016-11-21 08:51:11 +01002786
2787/* This function dumps a complete stream state onto the stream interface's
2788 * read buffer. The stream has to be set in strm. It returns 0 if the output
2789 * buffer is full and it needs to be called again, otherwise non-zero. It is
2790 * designed to be called from stats_dump_strm_to_buffer() below.
2791 */
2792static int stats_dump_full_strm_to_buffer(struct stream_interface *si, struct stream *strm)
2793{
2794 struct appctx *appctx = __objt_appctx(si->end);
2795 struct tm tm;
2796 extern const char *monthname[12];
2797 char pn[INET6_ADDRSTRLEN];
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002798 struct conn_stream *cs;
William Lallemand4c5b4d52016-11-21 08:51:11 +01002799 struct connection *conn;
2800 struct appctx *tmpctx;
2801
2802 chunk_reset(&trash);
2803
2804 if (appctx->ctx.sess.section > 0 && appctx->ctx.sess.uid != strm->uniq_id) {
2805 /* stream changed, no need to go any further */
2806 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
Willy Tarreaue6e52362019-01-04 17:42:57 +01002807 if (ci_putchk(si_ic(si), &trash) == -1)
2808 goto full;
2809 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01002810 }
2811
2812 switch (appctx->ctx.sess.section) {
2813 case 0: /* main status of the stream */
2814 appctx->ctx.sess.uid = strm->uniq_id;
2815 appctx->ctx.sess.section = 1;
2816 /* fall through */
2817
2818 case 1:
2819 get_localtime(strm->logs.accept_date.tv_sec, &tm);
2820 chunk_appendf(&trash,
2821 "%p: [%02d/%s/%04d:%02d:%02d:%02d.%06d] id=%u proto=%s",
2822 strm,
2823 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
2824 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(strm->logs.accept_date.tv_usec),
2825 strm->uniq_id,
Willy Tarreaub7436612020-08-28 19:51:44 +02002826 strm_li(strm) ? strm_li(strm)->rx.proto->name : "?");
William Lallemand4c5b4d52016-11-21 08:51:11 +01002827
2828 conn = objt_conn(strm_orig(strm));
Willy Tarreau71e34c12019-07-17 15:07:06 +02002829 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002830 case AF_INET:
2831 case AF_INET6:
2832 chunk_appendf(&trash, " source=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002833 pn, get_host_port(conn->src));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002834 break;
2835 case AF_UNIX:
2836 chunk_appendf(&trash, " source=unix:%d\n", strm_li(strm)->luid);
2837 break;
2838 default:
2839 /* no more information to print right now */
2840 chunk_appendf(&trash, "\n");
2841 break;
2842 }
2843
2844 chunk_appendf(&trash,
Willy Tarreauadf7a152019-01-07 10:10:07 +01002845 " flags=0x%x, conn_retries=%d, srv_conn=%p, pend_pos=%p waiting=%d\n",
2846 strm->flags, strm->si[1].conn_retries, strm->srv_conn, strm->pend_pos,
Willy Tarreau21046592020-02-26 10:39:36 +01002847 MT_LIST_ADDED(&strm->buffer_wait.list));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002848
2849 chunk_appendf(&trash,
2850 " frontend=%s (id=%u mode=%s), listener=%s (id=%u)",
2851 strm_fe(strm)->id, strm_fe(strm)->uuid, strm_fe(strm)->mode ? "http" : "tcp",
2852 strm_li(strm) ? strm_li(strm)->name ? strm_li(strm)->name : "?" : "?",
2853 strm_li(strm) ? strm_li(strm)->luid : 0);
2854
Willy Tarreau71e34c12019-07-17 15:07:06 +02002855 switch (conn && conn_get_dst(conn) ? addr_to_str(conn->dst, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002856 case AF_INET:
2857 case AF_INET6:
2858 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002859 pn, get_host_port(conn->dst));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002860 break;
2861 case AF_UNIX:
2862 chunk_appendf(&trash, " addr=unix:%d\n", strm_li(strm)->luid);
2863 break;
2864 default:
2865 /* no more information to print right now */
2866 chunk_appendf(&trash, "\n");
2867 break;
2868 }
2869
2870 if (strm->be->cap & PR_CAP_BE)
2871 chunk_appendf(&trash,
2872 " backend=%s (id=%u mode=%s)",
2873 strm->be->id,
2874 strm->be->uuid, strm->be->mode ? "http" : "tcp");
2875 else
2876 chunk_appendf(&trash, " backend=<NONE> (id=-1 mode=-)");
2877
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002878 cs = objt_cs(strm->si[1].end);
2879 conn = cs_conn(cs);
2880
Willy Tarreau71e34c12019-07-17 15:07:06 +02002881 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002882 case AF_INET:
2883 case AF_INET6:
2884 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002885 pn, get_host_port(conn->src));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002886 break;
2887 case AF_UNIX:
2888 chunk_appendf(&trash, " addr=unix\n");
2889 break;
2890 default:
2891 /* no more information to print right now */
2892 chunk_appendf(&trash, "\n");
2893 break;
2894 }
2895
2896 if (strm->be->cap & PR_CAP_BE)
2897 chunk_appendf(&trash,
2898 " server=%s (id=%u)",
2899 objt_server(strm->target) ? objt_server(strm->target)->id : "<none>",
2900 objt_server(strm->target) ? objt_server(strm->target)->puid : 0);
2901 else
2902 chunk_appendf(&trash, " server=<NONE> (id=-1)");
2903
Willy Tarreau71e34c12019-07-17 15:07:06 +02002904 switch (conn && conn_get_dst(conn) ? addr_to_str(conn->dst, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002905 case AF_INET:
2906 case AF_INET6:
2907 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002908 pn, get_host_port(conn->dst));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002909 break;
2910 case AF_UNIX:
2911 chunk_appendf(&trash, " addr=unix\n");
2912 break;
2913 default:
2914 /* no more information to print right now */
2915 chunk_appendf(&trash, "\n");
2916 break;
2917 }
2918
2919 chunk_appendf(&trash,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02002920 " task=%p (state=0x%02x nice=%d calls=%u rate=%u exp=%s tmask=0x%lx%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002921 strm->task,
2922 strm->task->state,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02002923 strm->task->nice, strm->task->calls, read_freq_ctr(&strm->call_rate),
William Lallemand4c5b4d52016-11-21 08:51:11 +01002924 strm->task->expire ?
2925 tick_is_expired(strm->task->expire, now_ms) ? "<PAST>" :
2926 human_time(TICKS_TO_MS(strm->task->expire - now_ms),
2927 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Fauletf0205062017-11-15 20:56:43 +01002928 strm->task->thread_mask,
William Lallemand4c5b4d52016-11-21 08:51:11 +01002929 task_in_rq(strm->task) ? ", running" : "");
2930
2931 chunk_appendf(&trash,
2932 " age=%s)\n",
2933 human_time(now.tv_sec - strm->logs.accept_date.tv_sec, 1));
2934
2935 if (strm->txn)
2936 chunk_appendf(&trash,
Christopher Fauletbcac7862019-07-17 10:46:50 +02002937 " 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 +01002938 strm->txn, strm->txn->flags, strm->txn->meth, strm->txn->status,
Willy Tarreau7778b592019-01-07 10:38:10 +01002939 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 +02002940 strm->txn->req.flags, strm->txn->rsp.flags);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002941
2942 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01002943 " 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 +01002944 &strm->si[0],
2945 si_state_str(strm->si[0].state),
2946 strm->si[0].flags,
2947 obj_type_name(strm->si[0].end),
2948 obj_base_ptr(strm->si[0].end),
2949 strm->si[0].exp ?
2950 tick_is_expired(strm->si[0].exp, now_ms) ? "<PAST>" :
2951 human_time(TICKS_TO_MS(strm->si[0].exp - now_ms),
2952 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01002953 strm->si[0].err_type, strm->si[0].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002954
2955 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01002956 " 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 +01002957 &strm->si[1],
2958 si_state_str(strm->si[1].state),
2959 strm->si[1].flags,
2960 obj_type_name(strm->si[1].end),
2961 obj_base_ptr(strm->si[1].end),
2962 strm->si[1].exp ?
2963 tick_is_expired(strm->si[1].exp, now_ms) ? "<PAST>" :
2964 human_time(TICKS_TO_MS(strm->si[1].exp - now_ms),
2965 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01002966 strm->si[1].err_type, strm->si[1].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002967
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002968 if ((cs = objt_cs(strm->si[0].end)) != NULL) {
2969 conn = cs->conn;
2970
William Lallemand4c5b4d52016-11-21 08:51:11 +01002971 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02002972 " co0=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002973 conn,
2974 conn_get_ctrl_name(conn),
2975 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02002976 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002977 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01002978 obj_type_name(conn->target),
2979 obj_base_ptr(conn->target));
2980
2981 chunk_appendf(&trash,
Willy Tarreau76913d32019-08-30 14:33:11 +02002982 " flags=0x%08x fd=%d fd.state=%02x updt=%d fd.tmask=0x%lx\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002983 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02002984 conn->handle.fd,
2985 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01002986 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01002987 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01002988
2989 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002990 }
2991 else if ((tmpctx = objt_appctx(strm->si[0].end)) != NULL) {
2992 chunk_appendf(&trash,
Willy Tarreau22d63a22019-04-24 08:41:29 +02002993 " 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 +01002994 tmpctx,
2995 tmpctx->st0,
2996 tmpctx->st1,
2997 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01002998 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02002999 tmpctx->thread_mask,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003000 tmpctx->t->nice, tmpctx->t->calls, read_freq_ctr(&tmpctx->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003001 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003002 }
3003
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003004 if ((cs = objt_cs(strm->si[1].end)) != NULL) {
3005 conn = cs->conn;
3006
William Lallemand4c5b4d52016-11-21 08:51:11 +01003007 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02003008 " co1=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003009 conn,
3010 conn_get_ctrl_name(conn),
3011 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02003012 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003013 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003014 obj_type_name(conn->target),
3015 obj_base_ptr(conn->target));
3016
3017 chunk_appendf(&trash,
Willy Tarreau76913d32019-08-30 14:33:11 +02003018 " flags=0x%08x fd=%d fd.state=%02x updt=%d fd.tmask=0x%lx\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003019 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003020 conn->handle.fd,
3021 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01003022 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01003023 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01003024
3025 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003026 }
3027 else if ((tmpctx = objt_appctx(strm->si[1].end)) != NULL) {
3028 chunk_appendf(&trash,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003029 " 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 +01003030 tmpctx,
3031 tmpctx->st0,
3032 tmpctx->st1,
3033 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01003034 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02003035 tmpctx->thread_mask,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003036 tmpctx->t->nice, tmpctx->t->calls, read_freq_ctr(&tmpctx->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003037 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003038 }
3039
3040 chunk_appendf(&trash,
3041 " req=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
3042 " an_exp=%s",
3043 &strm->req,
3044 strm->req.flags, strm->req.analysers,
3045 strm->req.pipe ? strm->req.pipe->data : 0,
3046 strm->req.to_forward, strm->req.total,
3047 strm->req.analyse_exp ?
3048 human_time(TICKS_TO_MS(strm->req.analyse_exp - now_ms),
3049 TICKS_TO_MS(1000)) : "<NEVER>");
3050
3051 chunk_appendf(&trash,
3052 " rex=%s",
3053 strm->req.rex ?
3054 human_time(TICKS_TO_MS(strm->req.rex - now_ms),
3055 TICKS_TO_MS(1000)) : "<NEVER>");
3056
3057 chunk_appendf(&trash,
3058 " wex=%s\n"
Christopher Fauletbcac7862019-07-17 10:46:50 +02003059 " buf=%p data=%p o=%u p=%u i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003060 strm->req.wex ?
3061 human_time(TICKS_TO_MS(strm->req.wex - now_ms),
3062 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003063 &strm->req.buf,
3064 b_orig(&strm->req.buf), (unsigned int)co_data(&strm->req),
Christopher Fauletbcac7862019-07-17 10:46:50 +02003065 (unsigned int)ci_head_ofs(&strm->req), (unsigned int)ci_data(&strm->req),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003066 (unsigned int)strm->req.buf.size);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003067
Christopher Fauletb9af8812019-01-04 14:30:44 +01003068 if (IS_HTX_STRM(strm)) {
3069 struct htx *htx = htxbuf(&strm->req.buf);
3070
3071 chunk_appendf(&trash,
Willy Tarreaub84e67f2019-01-07 10:01:34 +01003072 " htx=%p flags=0x%x size=%u data=%u used=%u wrap=%s extra=%llu\n",
Christopher Faulet192c6a22019-06-11 16:32:24 +02003073 htx, htx->flags, htx->size, htx->data, htx_nbblks(htx),
Christopher Faulet28f29c72019-04-30 17:55:45 +02003074 (htx->tail >= htx->head) ? "NO" : "YES",
Christopher Fauletb9af8812019-01-04 14:30:44 +01003075 (unsigned long long)htx->extra);
3076 }
3077
William Lallemand4c5b4d52016-11-21 08:51:11 +01003078 chunk_appendf(&trash,
3079 " res=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
3080 " an_exp=%s",
3081 &strm->res,
3082 strm->res.flags, strm->res.analysers,
3083 strm->res.pipe ? strm->res.pipe->data : 0,
3084 strm->res.to_forward, strm->res.total,
3085 strm->res.analyse_exp ?
3086 human_time(TICKS_TO_MS(strm->res.analyse_exp - now_ms),
3087 TICKS_TO_MS(1000)) : "<NEVER>");
3088
3089 chunk_appendf(&trash,
3090 " rex=%s",
3091 strm->res.rex ?
3092 human_time(TICKS_TO_MS(strm->res.rex - now_ms),
3093 TICKS_TO_MS(1000)) : "<NEVER>");
3094
3095 chunk_appendf(&trash,
3096 " wex=%s\n"
Christopher Fauletbcac7862019-07-17 10:46:50 +02003097 " buf=%p data=%p o=%u p=%u i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003098 strm->res.wex ?
3099 human_time(TICKS_TO_MS(strm->res.wex - now_ms),
3100 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003101 &strm->res.buf,
3102 b_orig(&strm->res.buf), (unsigned int)co_data(&strm->res),
Christopher Fauletbcac7862019-07-17 10:46:50 +02003103 (unsigned int)ci_head_ofs(&strm->res), (unsigned int)ci_data(&strm->res),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003104 (unsigned int)strm->res.buf.size);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003105
Christopher Fauletb9af8812019-01-04 14:30:44 +01003106 if (IS_HTX_STRM(strm)) {
3107 struct htx *htx = htxbuf(&strm->res.buf);
3108
3109 chunk_appendf(&trash,
3110 " htx=%p flags=0x%x size=%u data=%u used=%u wrap=%s extra=%llu\n",
Christopher Faulet192c6a22019-06-11 16:32:24 +02003111 htx, htx->flags, htx->size, htx->data, htx_nbblks(htx),
Christopher Faulet28f29c72019-04-30 17:55:45 +02003112 (htx->tail >= htx->head) ? "NO" : "YES",
Christopher Fauletb9af8812019-01-04 14:30:44 +01003113 (unsigned long long)htx->extra);
3114 }
3115
Willy Tarreaue6e52362019-01-04 17:42:57 +01003116 if (ci_putchk(si_ic(si), &trash) == -1)
3117 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003118
3119 /* use other states to dump the contents */
3120 }
3121 /* end of dump */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003122 done:
William Lallemand4c5b4d52016-11-21 08:51:11 +01003123 appctx->ctx.sess.uid = 0;
3124 appctx->ctx.sess.section = 0;
3125 return 1;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003126 full:
3127 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003128}
3129
3130
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003131static int cli_parse_show_sess(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemand4c5b4d52016-11-21 08:51:11 +01003132{
William Lallemand4c5b4d52016-11-21 08:51:11 +01003133 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
3134 return 1;
3135
3136 if (*args[2] && strcmp(args[2], "all") == 0)
3137 appctx->ctx.sess.target = (void *)-1;
3138 else if (*args[2])
3139 appctx->ctx.sess.target = (void *)strtoul(args[2], NULL, 0);
3140 else
3141 appctx->ctx.sess.target = NULL;
3142 appctx->ctx.sess.section = 0; /* start with stream status */
3143 appctx->ctx.sess.pos = 0;
3144
Willy Tarreauc6e7a1b2020-06-28 01:24:12 +02003145 /* we need to put an end marker into the streams list. We're just moving
3146 * ourselves there, so that once we found ourselves we know we've reached
3147 * the end. Without this we can run forever if new streams arrive faster
3148 * than we can dump them.
3149 */
3150 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
3151 LIST_DEL(&si_strm(appctx->owner)->list);
3152 LIST_ADDQ(&streams, &si_strm(appctx->owner)->list);
3153 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003154 return 0;
3155}
3156
3157/* This function dumps all streams' states onto the stream interface's
3158 * read buffer. It returns 0 if the output buffer is full and it needs
Willy Tarreaue6e52362019-01-04 17:42:57 +01003159 * to be called again, otherwise non-zero. It proceeds in an isolated
3160 * thread so there is no thread safety issue here.
William Lallemand4c5b4d52016-11-21 08:51:11 +01003161 */
3162static int cli_io_handler_dump_sess(struct appctx *appctx)
3163{
3164 struct stream_interface *si = appctx->owner;
3165 struct connection *conn;
3166
Willy Tarreaue6e52362019-01-04 17:42:57 +01003167 thread_isolate();
3168
William Lallemand4c5b4d52016-11-21 08:51:11 +01003169 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW))) {
3170 /* If we're forced to shut down, we might have to remove our
3171 * reference to the last stream being dumped.
3172 */
3173 if (appctx->st2 == STAT_ST_LIST) {
3174 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users)) {
3175 LIST_DEL(&appctx->ctx.sess.bref.users);
3176 LIST_INIT(&appctx->ctx.sess.bref.users);
3177 }
3178 }
Willy Tarreaue6e52362019-01-04 17:42:57 +01003179 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003180 }
3181
3182 chunk_reset(&trash);
3183
3184 switch (appctx->st2) {
3185 case STAT_ST_INIT:
3186 /* the function had not been called yet, let's prepare the
3187 * buffer for a response. We initialize the current stream
3188 * pointer to the first in the global list. When a target
3189 * stream is being destroyed, it is responsible for updating
3190 * this pointer. We know we have reached the end when this
3191 * pointer points back to the head of the streams list.
3192 */
3193 LIST_INIT(&appctx->ctx.sess.bref.users);
3194 appctx->ctx.sess.bref.ref = streams.n;
3195 appctx->st2 = STAT_ST_LIST;
3196 /* fall through */
3197
3198 case STAT_ST_LIST:
3199 /* first, let's detach the back-ref from a possible previous stream */
3200 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users)) {
3201 LIST_DEL(&appctx->ctx.sess.bref.users);
3202 LIST_INIT(&appctx->ctx.sess.bref.users);
3203 }
3204
Willy Tarreauc6e7a1b2020-06-28 01:24:12 +02003205 /* and start from where we stopped, never going further than ourselves */
3206 while (appctx->ctx.sess.bref.ref != si_strm(appctx->owner)->list.n) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003207 char pn[INET6_ADDRSTRLEN];
3208 struct stream *curr_strm;
3209
3210 curr_strm = LIST_ELEM(appctx->ctx.sess.bref.ref, struct stream *, list);
3211
3212 if (appctx->ctx.sess.target) {
3213 if (appctx->ctx.sess.target != (void *)-1 && appctx->ctx.sess.target != curr_strm)
3214 goto next_sess;
3215
3216 LIST_ADDQ(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
3217 /* call the proper dump() function and return if we're missing space */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003218 if (!stats_dump_full_strm_to_buffer(si, curr_strm))
3219 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003220
3221 /* stream dump complete */
3222 LIST_DEL(&appctx->ctx.sess.bref.users);
3223 LIST_INIT(&appctx->ctx.sess.bref.users);
3224 if (appctx->ctx.sess.target != (void *)-1) {
3225 appctx->ctx.sess.target = NULL;
3226 break;
3227 }
3228 else
3229 goto next_sess;
3230 }
3231
3232 chunk_appendf(&trash,
3233 "%p: proto=%s",
3234 curr_strm,
Willy Tarreaub7436612020-08-28 19:51:44 +02003235 strm_li(curr_strm) ? strm_li(curr_strm)->rx.proto->name : "?");
William Lallemand4c5b4d52016-11-21 08:51:11 +01003236
3237 conn = objt_conn(strm_orig(curr_strm));
Willy Tarreau71e34c12019-07-17 15:07:06 +02003238 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003239 case AF_INET:
3240 case AF_INET6:
3241 chunk_appendf(&trash,
3242 " src=%s:%d fe=%s be=%s srv=%s",
3243 pn,
Willy Tarreau71e34c12019-07-17 15:07:06 +02003244 get_host_port(conn->src),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003245 strm_fe(curr_strm)->id,
3246 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
3247 objt_server(curr_strm->target) ? objt_server(curr_strm->target)->id : "<none>"
3248 );
3249 break;
3250 case AF_UNIX:
3251 chunk_appendf(&trash,
3252 " src=unix:%d fe=%s be=%s srv=%s",
3253 strm_li(curr_strm)->luid,
3254 strm_fe(curr_strm)->id,
3255 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
3256 objt_server(curr_strm->target) ? objt_server(curr_strm->target)->id : "<none>"
3257 );
3258 break;
3259 }
3260
3261 chunk_appendf(&trash,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003262 " ts=%02x age=%s calls=%u rate=%u cpu=%llu lat=%llu",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003263 curr_strm->task->state,
3264 human_time(now.tv_sec - curr_strm->logs.tv_accept.tv_sec, 1),
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003265 curr_strm->task->calls, read_freq_ctr(&curr_strm->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003266 (unsigned long long)curr_strm->task->cpu_time, (unsigned long long)curr_strm->task->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003267
3268 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003269 " rq[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003270 curr_strm->req.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003271 (unsigned int)ci_data(&curr_strm->req),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003272 curr_strm->req.analysers,
3273 curr_strm->req.rex ?
3274 human_time(TICKS_TO_MS(curr_strm->req.rex - now_ms),
3275 TICKS_TO_MS(1000)) : "");
3276
3277 chunk_appendf(&trash,
3278 ",wx=%s",
3279 curr_strm->req.wex ?
3280 human_time(TICKS_TO_MS(curr_strm->req.wex - now_ms),
3281 TICKS_TO_MS(1000)) : "");
3282
3283 chunk_appendf(&trash,
3284 ",ax=%s]",
3285 curr_strm->req.analyse_exp ?
3286 human_time(TICKS_TO_MS(curr_strm->req.analyse_exp - now_ms),
3287 TICKS_TO_MS(1000)) : "");
3288
3289 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003290 " rp[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003291 curr_strm->res.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003292 (unsigned int)ci_data(&curr_strm->res),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003293 curr_strm->res.analysers,
3294 curr_strm->res.rex ?
3295 human_time(TICKS_TO_MS(curr_strm->res.rex - now_ms),
3296 TICKS_TO_MS(1000)) : "");
3297
3298 chunk_appendf(&trash,
3299 ",wx=%s",
3300 curr_strm->res.wex ?
3301 human_time(TICKS_TO_MS(curr_strm->res.wex - now_ms),
3302 TICKS_TO_MS(1000)) : "");
3303
3304 chunk_appendf(&trash,
3305 ",ax=%s]",
3306 curr_strm->res.analyse_exp ?
3307 human_time(TICKS_TO_MS(curr_strm->res.analyse_exp - now_ms),
3308 TICKS_TO_MS(1000)) : "");
3309
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003310 conn = cs_conn(objt_cs(curr_strm->si[0].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003311 chunk_appendf(&trash,
3312 " s0=[%d,%1xh,fd=%d,ex=%s]",
3313 curr_strm->si[0].state,
3314 curr_strm->si[0].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003315 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003316 curr_strm->si[0].exp ?
3317 human_time(TICKS_TO_MS(curr_strm->si[0].exp - now_ms),
3318 TICKS_TO_MS(1000)) : "");
3319
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003320 conn = cs_conn(objt_cs(curr_strm->si[1].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003321 chunk_appendf(&trash,
3322 " s1=[%d,%1xh,fd=%d,ex=%s]",
3323 curr_strm->si[1].state,
3324 curr_strm->si[1].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003325 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003326 curr_strm->si[1].exp ?
3327 human_time(TICKS_TO_MS(curr_strm->si[1].exp - now_ms),
3328 TICKS_TO_MS(1000)) : "");
3329
3330 chunk_appendf(&trash,
3331 " exp=%s",
3332 curr_strm->task->expire ?
3333 human_time(TICKS_TO_MS(curr_strm->task->expire - now_ms),
3334 TICKS_TO_MS(1000)) : "");
3335 if (task_in_rq(curr_strm->task))
3336 chunk_appendf(&trash, " run(nice=%d)", curr_strm->task->nice);
3337
3338 chunk_appendf(&trash, "\n");
3339
Willy Tarreau06d80a92017-10-19 14:32:15 +02003340 if (ci_putchk(si_ic(si), &trash) == -1) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003341 /* let's try again later from this stream. We add ourselves into
3342 * this stream's users so that it can remove us upon termination.
3343 */
William Lallemand4c5b4d52016-11-21 08:51:11 +01003344 LIST_ADDQ(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
Willy Tarreaue6e52362019-01-04 17:42:57 +01003345 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003346 }
3347
3348 next_sess:
3349 appctx->ctx.sess.bref.ref = curr_strm->list.n;
3350 }
3351
3352 if (appctx->ctx.sess.target && appctx->ctx.sess.target != (void *)-1) {
3353 /* specified stream not found */
3354 if (appctx->ctx.sess.section > 0)
3355 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
3356 else
3357 chunk_appendf(&trash, "Session not found.\n");
3358
Willy Tarreaue6e52362019-01-04 17:42:57 +01003359 if (ci_putchk(si_ic(si), &trash) == -1)
3360 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003361
3362 appctx->ctx.sess.target = NULL;
3363 appctx->ctx.sess.uid = 0;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003364 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003365 }
William Lallemand4c5b4d52016-11-21 08:51:11 +01003366 /* fall through */
3367
3368 default:
3369 appctx->st2 = STAT_ST_FIN;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003370 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003371 }
Willy Tarreaue6e52362019-01-04 17:42:57 +01003372 done:
3373 thread_release();
3374 return 1;
3375 full:
3376 thread_release();
3377 si_rx_room_blk(si);
3378 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003379}
3380
3381static void cli_release_show_sess(struct appctx *appctx)
3382{
3383 if (appctx->st2 == STAT_ST_LIST) {
Willy Tarreau7ce3f092017-11-10 16:24:41 +01003384 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003385 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users))
3386 LIST_DEL(&appctx->ctx.sess.bref.users);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003387 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003388 }
3389}
3390
Willy Tarreau61b65212016-11-24 11:09:25 +01003391/* Parses the "shutdown session" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003392static int cli_parse_shutdown_session(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau61b65212016-11-24 11:09:25 +01003393{
3394 struct stream *strm, *ptr;
3395
3396 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3397 return 1;
3398
Willy Tarreau9d008692019-08-09 11:21:01 +02003399 if (!*args[2])
3400 return cli_err(appctx, "Session pointer expected (use 'show sess').\n");
Willy Tarreau61b65212016-11-24 11:09:25 +01003401
3402 ptr = (void *)strtoul(args[2], NULL, 0);
3403
3404 /* first, look for the requested stream in the stream table */
3405 list_for_each_entry(strm, &streams, list) {
3406 if (strm == ptr)
3407 break;
3408 }
3409
3410 /* do we have the stream ? */
Willy Tarreau9d008692019-08-09 11:21:01 +02003411 if (strm != ptr)
3412 return cli_err(appctx, "No such session (use 'show sess').\n");
Willy Tarreau61b65212016-11-24 11:09:25 +01003413
3414 stream_shutdown(strm, SF_ERR_KILLED);
3415 return 1;
3416}
3417
Willy Tarreau4e46b622016-11-23 16:50:48 +01003418/* Parses the "shutdown session server" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003419static int cli_parse_shutdown_sessions_server(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau4e46b622016-11-23 16:50:48 +01003420{
3421 struct server *sv;
Willy Tarreau4e46b622016-11-23 16:50:48 +01003422
3423 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3424 return 1;
3425
3426 sv = cli_find_server(appctx, args[3]);
3427 if (!sv)
3428 return 1;
3429
3430 /* kill all the stream that are on this server */
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003431 HA_SPIN_LOCK(SERVER_LOCK, &sv->lock);
Willy Tarreaud9e26a72019-11-14 16:37:16 +01003432 srv_shutdown_streams(sv, SF_ERR_KILLED);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003433 HA_SPIN_UNLOCK(SERVER_LOCK, &sv->lock);
Willy Tarreau4e46b622016-11-23 16:50:48 +01003434 return 1;
3435}
3436
William Lallemand4c5b4d52016-11-21 08:51:11 +01003437/* register cli keywords */
3438static struct cli_kw_list cli_kws = {{ },{
3439 { { "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 +01003440 { { "shutdown", "session", NULL }, "shutdown session : kill a specific session", cli_parse_shutdown_session, NULL, NULL },
Willy Tarreau4e46b622016-11-23 16:50:48 +01003441 { { "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 +01003442 {{},}
3443}};
3444
Willy Tarreau0108d902018-11-25 19:14:37 +01003445INITCALL1(STG_REGISTER, cli_register_kw, &cli_kws);
3446
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003447/* main configuration keyword registration. */
3448static struct action_kw_list stream_tcp_keywords = { ILH, {
3449 { "use-service", stream_parse_use_service },
3450 { /* END */ }
3451}};
3452
Willy Tarreau0108d902018-11-25 19:14:37 +01003453INITCALL1(STG_REGISTER, tcp_req_cont_keywords_register, &stream_tcp_keywords);
3454
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003455static struct action_kw_list stream_http_keywords = { ILH, {
3456 { "use-service", stream_parse_use_service },
3457 { /* END */ }
3458}};
3459
Willy Tarreau0108d902018-11-25 19:14:37 +01003460INITCALL1(STG_REGISTER, http_req_keywords_register, &stream_http_keywords);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003461
Willy Tarreaubaaee002006-06-26 02:48:02 +02003462/*
3463 * Local variables:
3464 * c-indent-level: 8
3465 * c-basic-offset: 8
3466 * End:
3467 */