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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 Tarreau907988a2021-02-24 11:29:51 +010066/* incremented by each "show sess" to fix a delimiter between streams */
67unsigned stream_epoch = 0;
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
Willy Tarreau907988a2021-02-24 11:29:51 +0100388 s->stream_epoch = _HA_ATOMIC_LOAD(&stream_epoch);
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100389 s->uniq_id = _HA_ATOMIC_XADD(&global.req_count, 1);
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200390
Willy Tarreau87b09662015-04-03 00:22:06 +0200391 /* OK, we're keeping the stream, so let's properly initialize the stream */
Willy Tarreau2542b532012-08-31 16:01:23 +0200392 LIST_INIT(&s->back_refs);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100393
Willy Tarreau954827a2021-02-20 11:49:49 +0100394 LIST_INIT(&s->buffer_wait.list);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100395 s->buffer_wait.target = s;
Willy Tarreaub882dd82018-11-06 15:50:21 +0100396 s->buffer_wait.wakeup_cb = stream_buf_available;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200397
Willy Tarreau2e9c1d22019-04-24 08:28:31 +0200398 s->call_rate.curr_sec = s->call_rate.curr_ctr = s->call_rate.prev_ctr = 0;
William Lallemandcf62f7e2018-10-26 14:47:40 +0200399 s->pcli_next_pid = 0;
William Lallemandebf61802018-12-11 16:10:57 +0100400 s->pcli_flags = 0;
Tim Duesterhusa17e6622020-03-05 20:19:02 +0100401 s->unique_id = IST_NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200402
Emeric Brunc60def82017-09-27 14:59:38 +0200403 if ((t = task_new(tid_bit)) == NULL)
Willy Tarreau87787ac2017-08-28 16:22:54 +0200404 goto out_fail_alloc;
405
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200406 s->task = t;
Christopher Faulet9d810ca2016-12-08 22:33:52 +0100407 s->pending_events = 0;
Willy Tarreaud1769b82015-04-06 00:25:48 +0200408 t->process = process_stream;
Willy Tarreau2542b532012-08-31 16:01:23 +0200409 t->context = s;
410 t->expire = TICK_ETERNITY;
Willy Tarreau87787ac2017-08-28 16:22:54 +0200411 if (sess->listener)
412 t->nice = sess->listener->nice;
Willy Tarreau2542b532012-08-31 16:01:23 +0200413
Willy Tarreau87b09662015-04-03 00:22:06 +0200414 /* Note: initially, the stream's backend points to the frontend.
Willy Tarreau2542b532012-08-31 16:01:23 +0200415 * This changes later when switching rules are executed or
416 * when the default backend is assigned.
417 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200418 s->be = sess->fe;
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200419 s->req.buf = BUF_NULL;
420 s->res.buf = BUF_NULL;
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200421 s->req_cap = NULL;
422 s->res_cap = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200423
Willy Tarreauebcd4842015-06-19 11:59:02 +0200424 /* Initialise all the variables contexts even if not used.
425 * This permits to prune these contexts without errors.
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200426 */
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200427 vars_init(&s->vars_txn, SCOPE_TXN);
428 vars_init(&s->vars_reqres, SCOPE_REQ);
429
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200430 /* this part should be common with other protocols */
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200431 if (si_reset(&s->si[0]) < 0)
432 goto out_fail_alloc;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200433 si_set_state(&s->si[0], SI_ST_EST);
Hongbo Longe39683c2017-03-10 18:41:51 +0100434 s->si[0].hcto = sess->fe->timeout.clientfin;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200435
Christopher Faulet0e160ff2019-04-03 10:01:07 +0200436 if (cs && cs->conn->mux) {
437 if (cs->conn->mux->flags & MX_FL_CLEAN_ABRT)
438 s->si[0].flags |= SI_FL_CLEAN_ABRT;
439 if (cs->conn->mux->flags & MX_FL_HTX)
440 s->flags |= SF_HTX;
441 }
Christopher Faulet3494c632019-07-15 14:58:26 +0200442 /* Set SF_HTX flag for HTTP frontends. */
443 if (sess->fe->mode == PR_MODE_HTTP)
Christopher Faulet0e160ff2019-04-03 10:01:07 +0200444 s->flags |= SF_HTX;
Willy Tarreau984fca92017-12-20 16:31:43 +0100445
Willy Tarreau1f52bb22015-04-04 14:28:46 +0200446 /* attach the incoming connection to the stream interface now. */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200447 if (cs)
448 si_attach_cs(&s->si[0], cs);
Willy Tarreau470280e2015-04-05 01:33:13 +0200449 else if (appctx)
450 si_attach_appctx(&s->si[0], appctx);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200451
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200452 if (likely(sess->fe->options2 & PR_O2_INDEPSTR))
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200453 s->si[0].flags |= SI_FL_INDEP_STR;
454
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200455 /* pre-initialize the other side's stream interface to an INIT state. The
456 * callbacks will be initialized before attempting to connect.
457 */
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200458 if (si_reset(&s->si[1]) < 0)
459 goto out_fail_alloc_si1;
Hongbo Longe39683c2017-03-10 18:41:51 +0100460 s->si[1].hcto = TICK_ETERNITY;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200461
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200462 if (likely(sess->fe->options2 & PR_O2_INDEPSTR))
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200463 s->si[1].flags |= SI_FL_INDEP_STR;
464
Willy Tarreau87b09662015-04-03 00:22:06 +0200465 stream_init_srv_conn(s);
Willy Tarreau9b82d942016-12-05 00:26:31 +0100466 s->target = sess->listener ? sess->listener->default_target : NULL;
Willy Tarreau90420602019-07-18 15:09:57 +0200467 s->target_addr = NULL;
Willy Tarreau9b82d942016-12-05 00:26:31 +0100468
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200469 s->pend_pos = NULL;
Patrick Hemmer268a7072018-05-11 12:52:31 -0400470 s->priority_class = 0;
471 s->priority_offset = 0;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200472
473 /* init store persistence */
474 s->store_count = 0;
475
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100476 channel_init(&s->req);
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100477 s->req.flags |= CF_READ_ATTACHED; /* the producer is already connected */
Willy Tarreau9b82d942016-12-05 00:26:31 +0100478 s->req.analysers = sess->listener ? sess->listener->analysers : 0;
Willy Tarreaue223e3b2017-11-18 15:39:10 +0100479
480 if (!sess->fe->fe_req_ana) {
481 channel_auto_connect(&s->req); /* don't wait to establish connection */
482 channel_auto_close(&s->req); /* let the producer forward close requests */
483 }
Willy Tarreauc8815ef2015-04-05 18:15:59 +0200484
485 s->req.rto = sess->fe->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100486 s->req.wto = TICK_ETERNITY;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100487 s->req.rex = TICK_ETERNITY;
488 s->req.wex = TICK_ETERNITY;
489 s->req.analyse_exp = TICK_ETERNITY;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200490
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100491 channel_init(&s->res);
Willy Tarreauef573c02014-11-28 14:17:09 +0100492 s->res.flags |= CF_ISRESP;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100493 s->res.analysers = 0;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200494
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200495 if (sess->fe->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100496 s->req.flags |= CF_NEVER_WAIT;
497 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200498 }
499
Willy Tarreauc8815ef2015-04-05 18:15:59 +0200500 s->res.wto = sess->fe->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100501 s->res.rto = TICK_ETERNITY;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100502 s->res.rex = TICK_ETERNITY;
503 s->res.wex = TICK_ETERNITY;
504 s->res.analyse_exp = TICK_ETERNITY;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200505
Willy Tarreaueee5b512015-04-03 23:46:31 +0200506 s->txn = NULL;
Thierry FOURNIER2c8b54e2016-12-17 12:45:32 +0100507 s->hlua = NULL;
Thierry FOURNIER65f34c62015-02-16 20:11:43 +0100508
Frédéric Lécaillebed883a2019-04-23 17:26:33 +0200509 s->dns_ctx.dns_requester = NULL;
510 s->dns_ctx.hostname_dn = NULL;
511 s->dns_ctx.hostname_dn_len = 0;
512 s->dns_ctx.parent = NULL;
513
Willy Tarreau67de95e2021-02-24 10:37:01 +0100514 HA_SPIN_LOCK(STRMS_LOCK, &ti->streams_lock);
515 LIST_ADDQ(&ti->streams, &s->list);
516 HA_SPIN_UNLOCK(STRMS_LOCK, &ti->streams_lock);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200517
Christopher Faulet92d36382015-11-05 13:35:03 +0100518 if (flt_stream_init(s) < 0 || flt_stream_start(s) < 0)
Christopher Fauletd7c91962015-04-30 11:48:27 +0200519 goto out_fail_accept;
520
Olivier Houcharda254a372019-04-05 15:30:12 +0200521 s->si[1].l7_buffer = BUF_NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200522 /* finish initialization of the accepted file descriptor */
Olivier Houchard53216e72018-10-10 15:46:36 +0200523 if (appctx)
Willy Tarreau0cd3bd62018-11-06 18:46:37 +0100524 si_want_get(&s->si[0]);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200525
Willy Tarreaufb9f5842015-04-05 18:19:23 +0200526 if (sess->fe->accept && sess->fe->accept(s) < 0)
Willy Tarreauc5a7ff42015-04-05 11:52:08 +0200527 goto out_fail_accept;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200528
529 /* it is important not to call the wakeup function directly but to
530 * pass through task_wakeup(), because this one knows how to apply
Emeric Brun5f77fef2017-05-29 15:26:51 +0200531 * priorities to tasks. Using multi thread we must be sure that
532 * stream is fully initialized before calling task_wakeup. So
533 * the caller must handle the task_wakeup
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200534 */
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100535 DBG_TRACE_LEAVE(STRM_EV_STRM_NEW, s);
Willy Tarreau02d86382015-04-05 12:00:52 +0200536 return s;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200537
538 /* Error unrolling */
Willy Tarreauc5a7ff42015-04-05 11:52:08 +0200539 out_fail_accept:
Christopher Faulet92d36382015-11-05 13:35:03 +0100540 flt_stream_release(s, 0);
Olivier Houchard3f795f72019-04-17 22:51:06 +0200541 task_destroy(t);
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200542 tasklet_free(s->si[1].wait_event.tasklet);
Willy Tarreaue5f229e2018-10-15 11:08:55 +0200543 LIST_DEL(&s->list);
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200544out_fail_alloc_si1:
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200545 tasklet_free(s->si[0].wait_event.tasklet);
Willy Tarreau87787ac2017-08-28 16:22:54 +0200546 out_fail_alloc:
Willy Tarreaubafbe012017-11-24 17:34:44 +0100547 pool_free(pool_head_stream, s);
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100548 DBG_TRACE_DEVEL("leaving on error", STRM_EV_STRM_NEW|STRM_EV_STRM_ERR);
Willy Tarreau02d86382015-04-05 12:00:52 +0200549 return NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200550}
551
Willy Tarreaubaaee002006-06-26 02:48:02 +0200552/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200553 * frees the context associated to a stream. It must have been removed first.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200554 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200555static void stream_free(struct stream *s)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200556{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200557 struct session *sess = strm_sess(s);
558 struct proxy *fe = sess->fe;
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100559 struct bref *bref, *back;
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200560 struct conn_stream *cli_cs = objt_cs(s->si[0].end);
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100561 int must_free_sess;
Willy Tarreaua4cda672010-06-06 18:28:49 +0200562 int i;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100563
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100564 DBG_TRACE_POINT(STRM_EV_STRM_FREE, s);
565
Willy Tarreau0ad46fa2019-05-17 14:20:05 +0200566 /* detach the stream from its own task before even releasing it so
567 * that walking over a task list never exhibits a dying stream.
568 */
569 s->task->context = NULL;
570 __ha_barrier_store();
571
Willy Tarreaud0ad4a82018-07-25 11:13:53 +0200572 pendconn_free(s);
Willy Tarreau922a8062008-12-04 09:33:58 +0100573
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100574 if (objt_server(s->target)) { /* there may be requests left pending in queue */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200575 if (s->flags & SF_CURR_SESS) {
576 s->flags &= ~SF_CURR_SESS;
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100577 _HA_ATOMIC_SUB(&__objt_server(s->target)->cur_sess, 1);
Willy Tarreau1e62de62008-11-11 20:20:02 +0100578 }
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100579 if (may_dequeue_tasks(objt_server(s->target), s->be))
580 process_srv_queue(objt_server(s->target));
Willy Tarreau1e62de62008-11-11 20:20:02 +0100581 }
Willy Tarreau922a8062008-12-04 09:33:58 +0100582
Willy Tarreau7c669d72008-06-20 15:04:11 +0200583 if (unlikely(s->srv_conn)) {
Willy Tarreau87b09662015-04-03 00:22:06 +0200584 /* the stream still has a reserved slot on a server, but
Willy Tarreau7c669d72008-06-20 15:04:11 +0200585 * it should normally be only the same as the one above,
586 * so this should not happen in fact.
587 */
588 sess_change_server(s, NULL);
589 }
590
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100591 if (s->req.pipe)
592 put_pipe(s->req.pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100593
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100594 if (s->res.pipe)
595 put_pipe(s->res.pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100596
Willy Tarreaubf883e02014-11-25 21:10:35 +0100597 /* We may still be present in the buffer wait queue */
Willy Tarreau954827a2021-02-20 11:49:49 +0100598 if (LIST_ADDED(&s->buffer_wait.list))
599 LIST_DEL_INIT(&s->buffer_wait.list);
Willy Tarreau21046592020-02-26 10:39:36 +0100600
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200601 if (s->req.buf.size || s->res.buf.size) {
Willy Tarreau132b3a42021-02-20 12:02:46 +0100602 int count = !!s->req.buf.size + !!s->res.buf.size;
603
Willy Tarreaue0d0b402019-08-08 08:06:27 +0200604 b_free(&s->req.buf);
605 b_free(&s->res.buf);
Willy Tarreau132b3a42021-02-20 12:02:46 +0100606 offer_buffers(NULL, count);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100607 }
Willy Tarreau9b28e032012-10-12 23:49:43 +0200608
Tim Duesterhusa17e6622020-03-05 20:19:02 +0100609 pool_free(pool_head_uniqueid, s->unique_id.ptr);
610 s->unique_id = IST_NULL;
Olivier Houchard32211a12019-02-01 18:10:46 +0100611
Thierry FOURNIER2c8b54e2016-12-17 12:45:32 +0100612 hlua_ctx_destroy(s->hlua);
613 s->hlua = NULL;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200614 if (s->txn)
615 http_end_txn(s);
Willy Tarreau46023632010-01-07 22:51:47 +0100616
Willy Tarreau1e954912012-10-12 17:50:05 +0200617 /* ensure the client-side transport layer is destroyed */
Willy Tarreau32560732017-10-08 11:33:44 +0200618 if (cli_cs)
619 cs_close(cli_cs);
Willy Tarreau1e954912012-10-12 17:50:05 +0200620
Willy Tarreaua4cda672010-06-06 18:28:49 +0200621 for (i = 0; i < s->store_count; i++) {
622 if (!s->store[i].ts)
623 continue;
624 stksess_free(s->store[i].table, s->store[i].ts);
625 s->store[i].ts = NULL;
626 }
627
Willy Tarreaueee5b512015-04-03 23:46:31 +0200628 if (s->txn) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100629 pool_free(pool_head_http_txn, s->txn);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200630 s->txn = NULL;
631 }
632
Baptiste Assmann333939c2019-01-21 08:34:50 +0100633 if (s->dns_ctx.dns_requester) {
Christopher Faulet5098a082020-07-22 11:46:32 +0200634 __decl_thread(struct dns_resolvers *resolvers = s->dns_ctx.parent->arg.dns.resolvers);
635
636 HA_SPIN_LOCK(DNS_LOCK, &resolvers->lock);
Baptiste Assmann333939c2019-01-21 08:34:50 +0100637 free(s->dns_ctx.hostname_dn); s->dns_ctx.hostname_dn = NULL;
638 s->dns_ctx.hostname_dn_len = 0;
639 dns_unlink_resolution(s->dns_ctx.dns_requester);
Christopher Faulet5098a082020-07-22 11:46:32 +0200640 HA_SPIN_UNLOCK(DNS_LOCK, &resolvers->lock);
Baptiste Assmann333939c2019-01-21 08:34:50 +0100641
642 pool_free(dns_requester_pool, s->dns_ctx.dns_requester);
643 s->dns_ctx.dns_requester = NULL;
644 }
645
Christopher Fauletd7c91962015-04-30 11:48:27 +0200646 flt_stream_stop(s);
Christopher Faulet92d36382015-11-05 13:35:03 +0100647 flt_stream_release(s, 0);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200648
Willy Tarreau92fb9832007-10-16 17:34:28 +0200649 if (fe) {
Christopher Faulet59399252019-11-07 14:27:52 +0100650 if (s->req_cap) {
651 struct cap_hdr *h;
652 for (h = fe->req_cap; h; h = h->next)
653 pool_free(h->pool, s->req_cap[h->index]);
654 }
655
656 if (s->res_cap) {
657 struct cap_hdr *h;
658 for (h = fe->rsp_cap; h; h = h->next)
659 pool_free(h->pool, s->res_cap[h->index]);
660 }
661
Willy Tarreaubafbe012017-11-24 17:34:44 +0100662 pool_free(fe->rsp_cap_pool, s->res_cap);
663 pool_free(fe->req_cap_pool, s->req_cap);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200664 }
Willy Tarreau0937bc42009-12-22 15:03:09 +0100665
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200666 /* Cleanup all variable contexts. */
Willy Tarreaucda7f3f2018-10-28 13:44:36 +0100667 if (!LIST_ISEMPTY(&s->vars_txn.head))
668 vars_prune(&s->vars_txn, s->sess, s);
669 if (!LIST_ISEMPTY(&s->vars_reqres.head))
670 vars_prune(&s->vars_reqres, s->sess, s);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200671
Willy Tarreau87b09662015-04-03 00:22:06 +0200672 stream_store_counters(s);
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +0200673
Willy Tarreau67de95e2021-02-24 10:37:01 +0100674 HA_SPIN_LOCK(STRMS_LOCK, &ti->streams_lock);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100675 list_for_each_entry_safe(bref, back, &s->back_refs, users) {
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100676 /* we have to unlink all watchers. We must not relink them if
Willy Tarreau87b09662015-04-03 00:22:06 +0200677 * this stream was the last one in the list.
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100678 */
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100679 LIST_DEL(&bref->users);
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100680 LIST_INIT(&bref->users);
Willy Tarreau67de95e2021-02-24 10:37:01 +0100681 if (s->list.n != &ti->streams)
Willy Tarreau87b09662015-04-03 00:22:06 +0200682 LIST_ADDQ(&LIST_ELEM(s->list.n, struct stream *, list)->back_refs, &bref->users);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100683 bref->ref = s->list.n;
684 }
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100685 LIST_DEL(&s->list);
Willy Tarreau67de95e2021-02-24 10:37:01 +0100686 HA_SPIN_UNLOCK(STRMS_LOCK, &ti->streams_lock);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200687
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100688 /* applets do not release session yet */
689 must_free_sess = objt_appctx(sess->origin) && sess->origin == s->si[0].end;
690
Olivier Houchard4fdec7a2018-10-11 17:09:14 +0200691
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200692 si_release_endpoint(&s->si[1]);
693 si_release_endpoint(&s->si[0]);
Willy Tarreaufeb76402015-04-03 14:10:06 +0200694
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200695 tasklet_free(s->si[0].wait_event.tasklet);
696 tasklet_free(s->si[1].wait_event.tasklet);
Olivier Houchardd7bd3e32018-10-18 16:22:02 +0200697
Olivier Houcharda254a372019-04-05 15:30:12 +0200698 b_free(&s->si[1].l7_buffer);
Olivier Houchard25607af2018-11-23 14:50:47 +0100699 if (must_free_sess) {
700 sess->origin = NULL;
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100701 session_free(sess);
Olivier Houchard25607af2018-11-23 14:50:47 +0100702 }
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100703
Willy Tarreau90420602019-07-18 15:09:57 +0200704 sockaddr_free(&s->target_addr);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100705 pool_free(pool_head_stream, s);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200706
707 /* We may want to free the maximum amount of pools if the proxy is stopping */
Willy Tarreauc3914d42020-09-24 08:39:22 +0200708 if (fe && unlikely(fe->disabled)) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100709 pool_flush(pool_head_buffer);
710 pool_flush(pool_head_http_txn);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100711 pool_flush(pool_head_requri);
712 pool_flush(pool_head_capture);
713 pool_flush(pool_head_stream);
714 pool_flush(pool_head_session);
715 pool_flush(pool_head_connection);
716 pool_flush(pool_head_pendconn);
717 pool_flush(fe->req_cap_pool);
718 pool_flush(fe->rsp_cap_pool);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200719 }
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200720}
721
Willy Tarreau656859d2014-11-25 19:46:36 +0100722
Willy Tarreau87b09662015-04-03 00:22:06 +0200723/* Allocates a work buffer for stream <s>. It is meant to be called inside
724 * process_stream(). It will only allocate the side needed for the function
Willy Tarreaubc39a5d2015-04-20 15:52:18 +0200725 * to work fine, which is the response buffer so that an error message may be
726 * built and returned. Response buffers may be allocated from the reserve, this
727 * is critical to ensure that a response may always flow and will never block a
728 * server from releasing a connection. Returns 0 in case of failure, non-zero
729 * otherwise.
Willy Tarreau656859d2014-11-25 19:46:36 +0100730 */
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100731static int stream_alloc_work_buffer(struct stream *s)
Willy Tarreau656859d2014-11-25 19:46:36 +0100732{
Willy Tarreau954827a2021-02-20 11:49:49 +0100733 if (LIST_ADDED(&s->buffer_wait.list))
734 LIST_DEL_INIT(&s->buffer_wait.list);
Willy Tarreau656859d2014-11-25 19:46:36 +0100735
Willy Tarreaubc39a5d2015-04-20 15:52:18 +0200736 if (b_alloc_margin(&s->res.buf, 0))
Willy Tarreau656859d2014-11-25 19:46:36 +0100737 return 1;
738
Willy Tarreau954827a2021-02-20 11:49:49 +0100739 LIST_ADDQ(&ti->buffer_wq, &s->buffer_wait.list);
Willy Tarreau656859d2014-11-25 19:46:36 +0100740 return 0;
741}
742
743/* releases unused buffers after processing. Typically used at the end of the
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100744 * update() functions. It will try to wake up as many tasks/applets as the
745 * number of buffers that it releases. In practice, most often streams are
746 * blocked on a single buffer, so it makes sense to try to wake two up when two
747 * buffers are released at once.
Willy Tarreau656859d2014-11-25 19:46:36 +0100748 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200749void stream_release_buffers(struct stream *s)
Willy Tarreau656859d2014-11-25 19:46:36 +0100750{
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100751 int offer = 0;
Willy Tarreau656859d2014-11-25 19:46:36 +0100752
Willy Tarreau0c7ed5d2018-07-10 09:53:31 +0200753 if (c_size(&s->req) && c_empty(&s->req)) {
Willy Tarreau132b3a42021-02-20 12:02:46 +0100754 offer++;
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100755 b_free(&s->req.buf);
756 }
Willy Tarreau0c7ed5d2018-07-10 09:53:31 +0200757 if (c_size(&s->res) && c_empty(&s->res)) {
Willy Tarreau132b3a42021-02-20 12:02:46 +0100758 offer++;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100759 b_free(&s->res.buf);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100760 }
Willy Tarreau656859d2014-11-25 19:46:36 +0100761
Willy Tarreaubf883e02014-11-25 21:10:35 +0100762 /* if we're certain to have at least 1 buffer available, and there is
763 * someone waiting, we can wake up a waiter and offer them.
764 */
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100765 if (offer)
Willy Tarreau132b3a42021-02-20 12:02:46 +0100766 offer_buffers(s, offer);
Willy Tarreau656859d2014-11-25 19:46:36 +0100767}
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200768
Willy Tarreau87b09662015-04-03 00:22:06 +0200769void stream_process_counters(struct stream *s)
Willy Tarreau30e71012007-11-26 20:15:35 +0100770{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200771 struct session *sess = s->sess;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100772 unsigned long long bytes;
Emeric Brun57056f02015-06-15 18:29:57 +0200773 void *ptr1,*ptr2;
Emeric Brun819fc6f2017-06-13 19:37:32 +0200774 struct stksess *ts;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100775 int i;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100776
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100777 bytes = s->req.total - s->logs.bytes_in;
778 s->logs.bytes_in = s->req.total;
779 if (bytes) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100780 _HA_ATOMIC_ADD(&sess->fe->fe_counters.bytes_in, bytes);
781 _HA_ATOMIC_ADD(&s->be->be_counters.bytes_in, bytes);
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100782
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100783 if (objt_server(s->target))
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100784 _HA_ATOMIC_ADD(&objt_server(s->target)->counters.bytes_in, bytes);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200785
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200786 if (sess->listener && sess->listener->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100787 _HA_ATOMIC_ADD(&sess->listener->counters->bytes_in, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200788
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100789 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200790 struct stkctr *stkctr = &s->stkctr[i];
791
Emeric Brun819fc6f2017-06-13 19:37:32 +0200792 ts = stkctr_entry(stkctr);
793 if (!ts) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200794 stkctr = &sess->stkctr[i];
Emeric Brun819fc6f2017-06-13 19:37:32 +0200795 ts = stkctr_entry(stkctr);
796 if (!ts)
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200797 continue;
798 }
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200799
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100800 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun819fc6f2017-06-13 19:37:32 +0200801 ptr1 = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_BYTES_IN_CNT);
Emeric Brun57056f02015-06-15 18:29:57 +0200802 if (ptr1)
803 stktable_data_cast(ptr1, bytes_in_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200804
Emeric Brun819fc6f2017-06-13 19:37:32 +0200805 ptr2 = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_BYTES_IN_RATE);
Emeric Brun57056f02015-06-15 18:29:57 +0200806 if (ptr2)
807 update_freq_ctr_period(&stktable_data_cast(ptr2, bytes_in_rate),
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200808 stkctr->table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u, bytes);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100809 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun57056f02015-06-15 18:29:57 +0200810
811 /* If data was modified, we need to touch to re-schedule sync */
812 if (ptr1 || ptr2)
Emeric Brun819fc6f2017-06-13 19:37:32 +0200813 stktable_touch_local(stkctr->table, ts, 0);
Willy Tarreau30e71012007-11-26 20:15:35 +0100814 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100815 }
816
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100817 bytes = s->res.total - s->logs.bytes_out;
818 s->logs.bytes_out = s->res.total;
819 if (bytes) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100820 _HA_ATOMIC_ADD(&sess->fe->fe_counters.bytes_out, bytes);
821 _HA_ATOMIC_ADD(&s->be->be_counters.bytes_out, bytes);
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100822
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100823 if (objt_server(s->target))
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100824 _HA_ATOMIC_ADD(&objt_server(s->target)->counters.bytes_out, bytes);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200825
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200826 if (sess->listener && sess->listener->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100827 _HA_ATOMIC_ADD(&sess->listener->counters->bytes_out, bytes);
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200828
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100829 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200830 struct stkctr *stkctr = &s->stkctr[i];
831
Emeric Brun819fc6f2017-06-13 19:37:32 +0200832 ts = stkctr_entry(stkctr);
833 if (!ts) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200834 stkctr = &sess->stkctr[i];
Emeric Brun819fc6f2017-06-13 19:37:32 +0200835 ts = stkctr_entry(stkctr);
836 if (!ts)
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200837 continue;
838 }
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200839
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100840 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun819fc6f2017-06-13 19:37:32 +0200841 ptr1 = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_BYTES_OUT_CNT);
Emeric Brun57056f02015-06-15 18:29:57 +0200842 if (ptr1)
843 stktable_data_cast(ptr1, bytes_out_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200844
Emeric Brun819fc6f2017-06-13 19:37:32 +0200845 ptr2 = stktable_data_ptr(stkctr->table, ts, STKTABLE_DT_BYTES_OUT_RATE);
Emeric Brun57056f02015-06-15 18:29:57 +0200846 if (ptr2)
847 update_freq_ctr_period(&stktable_data_cast(ptr2, bytes_out_rate),
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200848 stkctr->table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u, bytes);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100849 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Emeric Brun57056f02015-06-15 18:29:57 +0200850
851 /* If data was modified, we need to touch to re-schedule sync */
852 if (ptr1 || ptr2)
Emeric Brun819fc6f2017-06-13 19:37:32 +0200853 stktable_touch_local(stkctr->table, stkctr_entry(stkctr), 0);
Willy Tarreau30e71012007-11-26 20:15:35 +0100854 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100855 }
856}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200857
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100858/*
859 * This function handles the transition between the SI_ST_CON state and the
Willy Tarreau85e7d002010-05-31 11:57:51 +0200860 * SI_ST_EST state. It must only be called after switching from SI_ST_CON (or
Willy Tarreau4f283fa2019-06-05 14:34:03 +0200861 * 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 +0200862 * Note that it will switch the interface to SI_ST_DIS if we already have
863 * the CF_SHUTR flag, it means we were able to forward the request, and
864 * receive the response, before process_stream() had the opportunity to
865 * make the switch from SI_ST_CON to SI_ST_EST. When that happens, we want
Willy Tarreau3a9312a2020-01-09 18:43:15 +0100866 * to go through back_establish() anyway, to make sure the analysers run.
Willy Tarreaud66ed882019-06-05 18:02:04 +0200867 * Timeouts are cleared. Error are reported on the channel so that analysers
868 * can handle them.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100869 */
Willy Tarreau3a9312a2020-01-09 18:43:15 +0100870static void back_establish(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100871{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100872 struct stream_interface *si = &s->si[1];
Willy Tarreaud66ed882019-06-05 18:02:04 +0200873 struct conn_stream *srv_cs = objt_cs(si->end);
874 struct connection *conn = srv_cs ? srv_cs->conn : objt_conn(si->end);
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100875 struct channel *req = &s->req;
876 struct channel *rep = &s->res;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100877
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100878 DBG_TRACE_ENTER(STRM_EV_STRM_PROC|STRM_EV_SI_ST, s);
Willy Tarreaud66ed882019-06-05 18:02:04 +0200879 /* First, centralize the timers information, and clear any irrelevant
880 * timeout.
881 */
Willy Tarreau0e37f1c2013-12-31 23:06:46 +0100882 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreaud66ed882019-06-05 18:02:04 +0200883 si->exp = TICK_ETERNITY;
884 si->flags &= ~SI_FL_EXP;
885
886 /* errors faced after sending data need to be reported */
887 if (si->flags & SI_FL_ERR && req->flags & CF_WROTE_DATA) {
888 /* Don't add CF_WRITE_ERROR if we're here because
889 * early data were rejected by the server, or
890 * http_wait_for_response() will never be called
891 * to send a 425.
892 */
893 if (conn && conn->err_code != CO_ER_SSL_EARLY_FAILED)
894 req->flags |= CF_WRITE_ERROR;
895 rep->flags |= CF_READ_ERROR;
896 si->err_type = SI_ET_DATA_ERR;
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100897 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 +0200898 }
899
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100900 if (objt_server(s->target))
901 health_adjust(objt_server(s->target), HANA_STATUS_L4_OK);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100902
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100903 if (s->be->mode == PR_MODE_TCP) { /* let's allow immediate data connection in this case */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100904 /* if the user wants to log as soon as possible, without counting
905 * bytes from the server, then this is the right moment. */
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200906 if (!LIST_ISEMPTY(&strm_fe(s)->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau66425e32018-07-25 06:55:12 +0200907 /* note: no pend_pos here, session is established */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100908 s->logs.t_close = s->logs.t_connect; /* to get a valid end date */
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100909 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100910 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100911 }
912 else {
Willy Tarreaud81ca042013-12-31 22:33:13 +0100913 rep->flags |= CF_READ_DONTWAIT; /* a single read is enough to get response headers */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100914 }
915
Willy Tarreau0007d0a2018-12-11 18:01:38 +0100916 rep->analysers |= strm_fe(s)->fe_rsp_ana | s->be->be_rsp_ana;
Christopher Faulet309c6412015-12-02 09:57:32 +0100917
Willy Tarreau0007d0a2018-12-11 18:01:38 +0100918 /* Be sure to filter response headers if the backend is an HTTP proxy
919 * and if there are filters attached to the stream. */
920 if (s->be->mode == PR_MODE_HTTP && HAS_FILTERS(s))
921 rep->analysers |= AN_RES_FLT_HTTP_HDRS;
Christopher Faulet309c6412015-12-02 09:57:32 +0100922
Willy Tarreau8bb2ffb2018-11-14 17:54:13 +0100923 si_rx_endp_more(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200924 rep->flags |= CF_READ_ATTACHED; /* producer is now attached */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200925 if (objt_cs(si->end)) {
Willy Tarreaud04e8582010-05-31 12:31:35 +0200926 /* real connections have timeouts */
927 req->wto = s->be->timeout.server;
928 rep->rto = s->be->timeout.server;
Olivier Houchard47e9a1a2018-11-07 17:55:19 +0100929 /* The connection is now established, try to read data from the
930 * underlying layer, and subscribe to recv events. We use a
931 * delayed recv here to give a chance to the data to flow back
932 * by the time we process other tasks.
933 */
934 si_chk_rcv(si);
Willy Tarreaud04e8582010-05-31 12:31:35 +0200935 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100936 req->wex = TICK_ETERNITY;
Olivier Houchard78595262019-07-26 14:54:34 +0200937 /* If we managed to get the whole response, and we don't have anything
938 * left to send, or can't, switch to SI_ST_DIS now. */
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100939 if (rep->flags & (CF_SHUTR | CF_SHUTW)) {
Olivier Houchardaacc4052019-05-21 17:43:50 +0200940 si->state = SI_ST_DIS;
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100941 DBG_TRACE_STATE("response channel shutdwn for read/write", STRM_EV_STRM_PROC|STRM_EV_SI_ST|STRM_EV_STRM_ERR, s);
942 }
943
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100944 DBG_TRACE_LEAVE(STRM_EV_STRM_PROC|STRM_EV_SI_ST, s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100945}
946
Willy Tarreau87b09662015-04-03 00:22:06 +0200947/* Set correct stream termination flags in case no analyser has done it. It
Simon Hormandec5be42011-06-08 09:19:07 +0900948 * also counts a failed request if the server state has not reached the request
949 * stage.
950 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200951static void sess_set_term_flags(struct stream *s)
Simon Hormandec5be42011-06-08 09:19:07 +0900952{
Willy Tarreaue7dff022015-04-03 01:14:29 +0200953 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +0200954 if (s->si[1].state == SI_ST_INI) {
955 /* anything before REQ in fact */
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100956 _HA_ATOMIC_ADD(&strm_fe(s)->fe_counters.failed_req, 1);
Willy Tarreau2c1068c2015-09-23 12:21:21 +0200957 if (strm_li(s) && strm_li(s)->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100958 _HA_ATOMIC_ADD(&strm_li(s)->counters->failed_req, 1);
Simon Hormandec5be42011-06-08 09:19:07 +0900959
Willy Tarreaue7dff022015-04-03 01:14:29 +0200960 s->flags |= SF_FINST_R;
Simon Hormandec5be42011-06-08 09:19:07 +0900961 }
962 else if (s->si[1].state == SI_ST_QUE)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200963 s->flags |= SF_FINST_Q;
Willy Tarreau4f283fa2019-06-05 14:34:03 +0200964 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 +0200965 s->flags |= SF_FINST_C;
Simon Hormandec5be42011-06-08 09:19:07 +0900966 else if (s->si[1].state == SI_ST_EST || s->si[1].prev_state == SI_ST_EST)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200967 s->flags |= SF_FINST_D;
Simon Hormandec5be42011-06-08 09:19:07 +0900968 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200969 s->flags |= SF_FINST_L;
Simon Hormandec5be42011-06-08 09:19:07 +0900970 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100971}
972
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200973/* This function parses the use-service action ruleset. It executes
974 * the associated ACL and set an applet as a stream or txn final node.
975 * it returns ACT_RET_ERR if an error occurs, the proxy left in
Ilya Shipitsinc02a23f2020-05-06 00:53:22 +0500976 * consistent state. It returns ACT_RET_STOP in success case because
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200977 * use-service must be a terminal action. Returns ACT_RET_YIELD
978 * if the initialisation function require more data.
979 */
980enum act_return process_use_service(struct act_rule *rule, struct proxy *px,
981 struct session *sess, struct stream *s, int flags)
982
983{
984 struct appctx *appctx;
985
986 /* Initialises the applet if it is required. */
Christopher Faulet105ba6c2019-12-18 14:41:51 +0100987 if (flags & ACT_OPT_FIRST) {
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200988 /* Register applet. this function schedules the applet. */
989 s->target = &rule->applet.obj_type;
Willy Tarreau14bfe9a2018-12-19 15:19:27 +0100990 if (unlikely(!si_register_handler(&s->si[1], objt_applet(s->target))))
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200991 return ACT_RET_ERR;
992
993 /* Initialise the context. */
994 appctx = si_appctx(&s->si[1]);
995 memset(&appctx->ctx, 0, sizeof(appctx->ctx));
996 appctx->rule = rule;
997 }
998 else
999 appctx = si_appctx(&s->si[1]);
1000
Ilya Shipitsinc02a23f2020-05-06 00:53:22 +05001001 /* Stops the applet scheduling, in case of the init function miss
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001002 * some data.
1003 */
Willy Tarreau0cd3bd62018-11-06 18:46:37 +01001004 si_stop_get(&s->si[1]);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001005
1006 /* Call initialisation. */
1007 if (rule->applet.init)
1008 switch (rule->applet.init(appctx, px, s)) {
1009 case 0: return ACT_RET_ERR;
1010 case 1: break;
1011 default: return ACT_RET_YIELD;
1012 }
1013
Christopher Faulet2571bc62019-03-01 11:44:26 +01001014 if (rule->from != ACT_F_HTTP_REQ) {
1015 if (sess->fe == s->be) /* report it if the request was intercepted by the frontend */
1016 _HA_ATOMIC_ADD(&sess->fe->fe_counters.intercepted_req, 1);
1017
1018 /* The flag SF_ASSIGNED prevent from server assignment. */
1019 s->flags |= SF_ASSIGNED;
1020 }
1021
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001022 /* Now we can schedule the applet. */
Willy Tarreau0cd3bd62018-11-06 18:46:37 +01001023 si_cant_get(&s->si[1]);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001024 appctx_wakeup(appctx);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001025 return ACT_RET_STOP;
1026}
1027
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001028/* This stream analyser checks the switching rules and changes the backend
Willy Tarreau4de91492010-01-22 19:10:05 +01001029 * if appropriate. The default_backend rule is also considered, then the
1030 * target backend's forced persistence rules are also evaluated last if any.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001031 * It returns 1 if the processing can continue on next analysers, or zero if it
1032 * either needs more data or wants to immediately abort the request.
1033 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001034static int process_switching_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001035{
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001036 struct persist_rule *prst_rule;
Willy Tarreau192252e2015-04-04 01:47:55 +02001037 struct session *sess = s->sess;
1038 struct proxy *fe = sess->fe;
Willy Tarreau4de91492010-01-22 19:10:05 +01001039
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001040 req->analysers &= ~an_bit;
1041 req->analyse_exp = TICK_ETERNITY;
1042
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001043 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001044
1045 /* now check whether we have some switching rules for this request */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001046 if (!(s->flags & SF_BE_ASSIGNED)) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001047 struct switching_rule *rule;
1048
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001049 list_for_each_entry(rule, &fe->switching_rules, list) {
Willy Tarreauf51658d2014-04-23 01:21:56 +02001050 int ret = 1;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001051
Willy Tarreauf51658d2014-04-23 01:21:56 +02001052 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001053 ret = acl_exec_cond(rule->cond, fe, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001054 ret = acl_pass(ret);
1055 if (rule->cond->pol == ACL_COND_UNLESS)
1056 ret = !ret;
1057 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001058
1059 if (ret) {
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001060 /* If the backend name is dynamic, try to resolve the name.
1061 * If we can't resolve the name, or if any error occurs, break
1062 * the loop and fallback to the default backend.
1063 */
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001064 struct proxy *backend = NULL;
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001065
1066 if (rule->dynamic) {
Willy Tarreau83061a82018-07-13 11:56:34 +02001067 struct buffer *tmp;
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001068
1069 tmp = alloc_trash_chunk();
1070 if (!tmp)
1071 goto sw_failed;
1072
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001073 if (build_logline(s, tmp->area, tmp->size, &rule->be.expr))
1074 backend = proxy_be_by_name(tmp->area);
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001075
1076 free_trash_chunk(tmp);
1077 tmp = NULL;
1078
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001079 if (!backend)
1080 break;
1081 }
1082 else
1083 backend = rule->be.backend;
1084
Willy Tarreau87b09662015-04-03 00:22:06 +02001085 if (!stream_set_backend(s, backend))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001086 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001087 break;
1088 }
1089 }
1090
1091 /* To ensure correct connection accounting on the backend, we
1092 * have to assign one if it was not set (eg: a listen). This
1093 * measure also takes care of correctly setting the default
1094 * backend if any.
1095 */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001096 if (!(s->flags & SF_BE_ASSIGNED))
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001097 if (!stream_set_backend(s, fe->defbe.be ? fe->defbe.be : s->be))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001098 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001099 }
1100
Willy Tarreaufb356202010-08-03 14:02:05 +02001101 /* 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 +02001102 if (fe == s->be) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001103 s->req.analysers &= ~AN_REQ_INSPECT_BE;
1104 s->req.analysers &= ~AN_REQ_HTTP_PROCESS_BE;
Christopher Faulet0184ea72017-01-05 14:06:34 +01001105 s->req.analysers &= ~AN_REQ_FLT_START_BE;
Willy Tarreaufb356202010-08-03 14:02:05 +02001106 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001107
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001108 /* 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 +02001109 * persistence rule, and report that in the stream.
Willy Tarreau4de91492010-01-22 19:10:05 +01001110 */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001111 list_for_each_entry(prst_rule, &s->be->persist_rules, list) {
Willy Tarreau4de91492010-01-22 19:10:05 +01001112 int ret = 1;
1113
1114 if (prst_rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001115 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 +01001116 ret = acl_pass(ret);
1117 if (prst_rule->cond->pol == ACL_COND_UNLESS)
1118 ret = !ret;
1119 }
1120
1121 if (ret) {
1122 /* no rule, or the rule matches */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001123 if (prst_rule->type == PERSIST_TYPE_FORCE) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001124 s->flags |= SF_FORCE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001125 } else {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001126 s->flags |= SF_IGNORE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001127 }
Willy Tarreau4de91492010-01-22 19:10:05 +01001128 break;
1129 }
1130 }
1131
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001132 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001133 return 1;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001134
1135 sw_failed:
1136 /* immediately abort this request in case of allocation failure */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001137 channel_abort(&s->req);
1138 channel_abort(&s->res);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001139
Willy Tarreaue7dff022015-04-03 01:14:29 +02001140 if (!(s->flags & SF_ERR_MASK))
1141 s->flags |= SF_ERR_RESOURCE;
1142 if (!(s->flags & SF_FINST_MASK))
1143 s->flags |= SF_FINST_R;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001144
Willy Tarreaueee5b512015-04-03 23:46:31 +02001145 if (s->txn)
1146 s->txn->status = 500;
Christopher Faulet0184ea72017-01-05 14:06:34 +01001147 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001148 s->req.analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001149 DBG_TRACE_DEVEL("leaving on error", STRM_EV_STRM_ANA|STRM_EV_STRM_ERR, s);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001150 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001151}
1152
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001153/* This stream analyser works on a request. It applies all use-server rules on
1154 * it then returns 1. The data must already be present in the buffer otherwise
1155 * they won't match. It always returns 1.
1156 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001157static int process_server_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001158{
1159 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001160 struct session *sess = s->sess;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001161 struct server_rule *rule;
1162
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001163 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001164
Willy Tarreaue7dff022015-04-03 01:14:29 +02001165 if (!(s->flags & SF_ASSIGNED)) {
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001166 list_for_each_entry(rule, &px->server_rules, list) {
1167 int ret;
1168
Willy Tarreau192252e2015-04-04 01:47:55 +02001169 ret = acl_exec_cond(rule->cond, s->be, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001170 ret = acl_pass(ret);
1171 if (rule->cond->pol == ACL_COND_UNLESS)
1172 ret = !ret;
1173
1174 if (ret) {
Jerome Magnin824186b2020-03-29 09:37:12 +02001175 struct server *srv;
1176
1177 if (rule->dynamic) {
1178 struct buffer *tmp = get_trash_chunk();
1179
1180 if (!build_logline(s, tmp->area, tmp->size, &rule->expr))
1181 break;
1182
1183 srv = findserver(s->be, tmp->area);
1184 if (!srv)
1185 break;
1186 }
1187 else
1188 srv = rule->srv.ptr;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001189
Emeric Brun52a91d32017-08-31 14:41:55 +02001190 if ((srv->cur_state != SRV_ST_STOPPED) ||
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001191 (px->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +02001192 (s->flags & SF_FORCE_PRST)) {
1193 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001194 s->target = &srv->obj_type;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001195 break;
1196 }
1197 /* if the server is not UP, let's go on with next rules
1198 * just in case another one is suited.
1199 */
1200 }
1201 }
1202 }
1203
1204 req->analysers &= ~an_bit;
1205 req->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001206 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001207 return 1;
1208}
1209
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001210static inline void sticking_rule_find_target(struct stream *s,
1211 struct stktable *t, struct stksess *ts)
1212{
1213 struct proxy *px = s->be;
1214 struct eb32_node *node;
1215 struct dict_entry *de;
1216 void *ptr;
1217 struct server *srv;
1218
1219 /* Look for the server name previously stored in <t> stick-table */
1220 HA_RWLOCK_RDLOCK(STK_SESS_LOCK, &ts->lock);
1221 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_NAME);
1222 de = stktable_data_cast(ptr, server_name);
1223 HA_RWLOCK_RDUNLOCK(STK_SESS_LOCK, &ts->lock);
1224
1225 if (de) {
1226 struct ebpt_node *name;
1227
1228 name = ebis_lookup(&px->conf.used_server_name, de->value.key);
1229 if (name) {
1230 srv = container_of(name, struct server, conf.name);
1231 goto found;
1232 }
1233 }
1234
1235 /* Look for the server ID */
1236 HA_RWLOCK_RDLOCK(STK_SESS_LOCK, &ts->lock);
1237 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_ID);
1238 node = eb32_lookup(&px->conf.used_server_id, stktable_data_cast(ptr, server_id));
1239 HA_RWLOCK_RDUNLOCK(STK_SESS_LOCK, &ts->lock);
1240
1241 if (!node)
1242 return;
1243
1244 srv = container_of(node, struct server, conf.id);
1245 found:
1246 if ((srv->cur_state != SRV_ST_STOPPED) ||
1247 (px->options & PR_O_PERSIST) || (s->flags & SF_FORCE_PRST)) {
1248 s->flags |= SF_DIRECT | SF_ASSIGNED;
1249 s->target = &srv->obj_type;
1250 }
1251}
1252
Emeric Brun1d33b292010-01-04 15:47:17 +01001253/* This stream analyser works on a request. It applies all sticking rules on
1254 * it then returns 1. The data must already be present in the buffer otherwise
1255 * they won't match. It always returns 1.
1256 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001257static int process_sticking_rules(struct stream *s, struct channel *req, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001258{
1259 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001260 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001261 struct sticking_rule *rule;
1262
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001263 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001264
1265 list_for_each_entry(rule, &px->sticking_rules, list) {
1266 int ret = 1 ;
1267 int i;
1268
Willy Tarreau9667a802013-12-09 12:52:13 +01001269 /* Only the first stick store-request of each table is applied
1270 * and other ones are ignored. The purpose is to allow complex
1271 * configurations which look for multiple entries by decreasing
1272 * order of precision and to stop at the first which matches.
1273 * An example could be a store of the IP address from an HTTP
1274 * header first, then from the source if not found.
1275 */
Jerome Magninbee00ad2020-01-16 17:37:21 +01001276 if (rule->flags & STK_IS_STORE) {
1277 for (i = 0; i < s->store_count; i++) {
1278 if (rule->table.t == s->store[i].table)
1279 break;
1280 }
Emeric Brun1d33b292010-01-04 15:47:17 +01001281
Jerome Magninbee00ad2020-01-16 17:37:21 +01001282 if (i != s->store_count)
1283 continue;
1284 }
Emeric Brun1d33b292010-01-04 15:47:17 +01001285
1286 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001287 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001288 ret = acl_pass(ret);
1289 if (rule->cond->pol == ACL_COND_UNLESS)
1290 ret = !ret;
1291 }
1292
1293 if (ret) {
1294 struct stktable_key *key;
1295
Willy Tarreau192252e2015-04-04 01:47:55 +02001296 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 +01001297 if (!key)
1298 continue;
1299
1300 if (rule->flags & STK_IS_MATCH) {
1301 struct stksess *ts;
1302
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001303 if ((ts = stktable_lookup_key(rule->table.t, key)) != NULL) {
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001304 if (!(s->flags & SF_ASSIGNED))
1305 sticking_rule_find_target(s, rule->table.t, ts);
Emeric Brun819fc6f2017-06-13 19:37:32 +02001306 stktable_touch_local(rule->table.t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001307 }
1308 }
1309 if (rule->flags & STK_IS_STORE) {
1310 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
1311 struct stksess *ts;
1312
1313 ts = stksess_new(rule->table.t, key);
1314 if (ts) {
1315 s->store[s->store_count].table = rule->table.t;
1316 s->store[s->store_count++].ts = ts;
1317 }
1318 }
1319 }
1320 }
1321 }
1322
1323 req->analysers &= ~an_bit;
1324 req->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001325 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001326 return 1;
1327}
1328
1329/* This stream analyser works on a response. It applies all store rules on it
1330 * then returns 1. The data must already be present in the buffer otherwise
1331 * they won't match. It always returns 1.
1332 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001333static int process_store_rules(struct stream *s, struct channel *rep, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001334{
1335 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001336 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001337 struct sticking_rule *rule;
1338 int i;
Willy Tarreau9667a802013-12-09 12:52:13 +01001339 int nbreq = s->store_count;
Emeric Brun1d33b292010-01-04 15:47:17 +01001340
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001341 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001342
1343 list_for_each_entry(rule, &px->storersp_rules, list) {
1344 int ret = 1 ;
Emeric Brun1d33b292010-01-04 15:47:17 +01001345
Willy Tarreau9667a802013-12-09 12:52:13 +01001346 /* Only the first stick store-response of each table is applied
1347 * and other ones are ignored. The purpose is to allow complex
1348 * configurations which look for multiple entries by decreasing
1349 * order of precision and to stop at the first which matches.
1350 * An example could be a store of a set-cookie value, with a
1351 * fallback to a parameter found in a 302 redirect.
1352 *
1353 * The store-response rules are not allowed to override the
1354 * store-request rules for the same table, but they may coexist.
1355 * Thus we can have up to one store-request entry and one store-
1356 * response entry for the same table at any time.
1357 */
1358 for (i = nbreq; i < s->store_count; i++) {
1359 if (rule->table.t == s->store[i].table)
1360 break;
1361 }
1362
1363 /* skip existing entries for this table */
1364 if (i < s->store_count)
1365 continue;
1366
Emeric Brun1d33b292010-01-04 15:47:17 +01001367 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001368 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_RES|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001369 ret = acl_pass(ret);
1370 if (rule->cond->pol == ACL_COND_UNLESS)
1371 ret = !ret;
1372 }
1373
1374 if (ret) {
1375 struct stktable_key *key;
1376
Willy Tarreau192252e2015-04-04 01:47:55 +02001377 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 +01001378 if (!key)
1379 continue;
1380
Willy Tarreau37e340c2013-12-06 23:05:21 +01001381 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001382 struct stksess *ts;
1383
1384 ts = stksess_new(rule->table.t, key);
1385 if (ts) {
1386 s->store[s->store_count].table = rule->table.t;
Emeric Brun1d33b292010-01-04 15:47:17 +01001387 s->store[s->store_count++].ts = ts;
1388 }
1389 }
1390 }
1391 }
1392
1393 /* process store request and store response */
1394 for (i = 0; i < s->store_count; i++) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001395 struct stksess *ts;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001396 void *ptr;
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001397 struct dict_entry *de;
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001398
Willy Tarreauc93cd162014-05-13 15:54:22 +02001399 if (objt_server(s->target) && objt_server(s->target)->flags & SRV_F_NON_STICK) {
Simon Hormanfa461682011-06-25 09:39:49 +09001400 stksess_free(s->store[i].table, s->store[i].ts);
1401 s->store[i].ts = NULL;
1402 continue;
1403 }
1404
Emeric Brun819fc6f2017-06-13 19:37:32 +02001405 ts = stktable_set_entry(s->store[i].table, s->store[i].ts);
1406 if (ts != s->store[i].ts) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001407 /* the entry already existed, we can free ours */
Emeric Brun1d33b292010-01-04 15:47:17 +01001408 stksess_free(s->store[i].table, s->store[i].ts);
Emeric Brun1d33b292010-01-04 15:47:17 +01001409 }
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001410 s->store[i].ts = NULL;
Emeric Brun819fc6f2017-06-13 19:37:32 +02001411
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001412 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Willy Tarreaub8d42d02018-09-20 11:11:15 +02001413 ptr = __stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_ID);
1414 stktable_data_cast(ptr, server_id) = __objt_server(s->target)->puid;
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001415 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001416
1417 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
1418 de = dict_insert(&server_name_dict, __objt_server(s->target)->id);
1419 if (de) {
1420 ptr = __stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_NAME);
1421 stktable_data_cast(ptr, server_name) = de;
1422 }
1423 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
1424
Emeric Brun819fc6f2017-06-13 19:37:32 +02001425 stktable_touch_local(s->store[i].table, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001426 }
Willy Tarreau2a164ee2010-06-18 09:57:45 +02001427 s->store_count = 0; /* everything is stored */
Emeric Brun1d33b292010-01-04 15:47:17 +01001428
1429 rep->analysers &= ~an_bit;
1430 rep->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001431
1432 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001433 return 1;
1434}
1435
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001436/* This macro is very specific to the function below. See the comments in
Willy Tarreau87b09662015-04-03 00:22:06 +02001437 * process_stream() below to understand the logic and the tests.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001438 */
1439#define UPDATE_ANALYSERS(real, list, back, flag) { \
1440 list = (((list) & ~(flag)) | ~(back)) & (real); \
1441 back = real; \
1442 if (!(list)) \
1443 break; \
1444 if (((list) ^ ((list) & ((list) - 1))) < (flag)) \
1445 continue; \
1446}
1447
Christopher Fauleta9215b72016-05-11 17:06:28 +02001448/* These 2 following macros call an analayzer for the specified channel if the
1449 * right flag is set. The first one is used for "filterable" analyzers. If a
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001450 * stream has some registered filters, pre and post analyaze callbacks are
Christopher Faulet0184ea72017-01-05 14:06:34 +01001451 * called. The second are used for other analyzers (AN_REQ/RES_FLT_* and
Christopher Fauleta9215b72016-05-11 17:06:28 +02001452 * AN_REQ/RES_HTTP_XFER_BODY) */
1453#define FLT_ANALYZE(strm, chn, fun, list, back, flag, ...) \
1454 { \
1455 if ((list) & (flag)) { \
1456 if (HAS_FILTERS(strm)) { \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001457 if (!flt_pre_analyze((strm), (chn), (flag))) \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001458 break; \
1459 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1460 break; \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001461 if (!flt_post_analyze((strm), (chn), (flag))) \
1462 break; \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001463 } \
1464 else { \
1465 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1466 break; \
1467 } \
1468 UPDATE_ANALYSERS((chn)->analysers, (list), \
1469 (back), (flag)); \
1470 } \
1471 }
1472
1473#define ANALYZE(strm, chn, fun, list, back, flag, ...) \
1474 { \
1475 if ((list) & (flag)) { \
1476 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1477 break; \
1478 UPDATE_ANALYSERS((chn)->analysers, (list), \
1479 (back), (flag)); \
1480 } \
1481 }
1482
Willy Tarreau87b09662015-04-03 00:22:06 +02001483/* Processes the client, server, request and response jobs of a stream task,
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001484 * then puts it back to the wait queue in a clean state, or cleans up its
1485 * resources if it must be deleted. Returns in <next> the date the task wants
1486 * to be woken up, or TICK_ETERNITY. In order not to call all functions for
1487 * nothing too many times, the request and response buffers flags are monitored
1488 * and each function is called only if at least another function has changed at
1489 * least one flag it is interested in.
1490 */
Olivier Houchard9f6af332018-05-25 14:04:04 +02001491struct task *process_stream(struct task *t, void *context, unsigned short state)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001492{
Willy Tarreau827aee92011-03-10 16:55:02 +01001493 struct server *srv;
Olivier Houchard9f6af332018-05-25 14:04:04 +02001494 struct stream *s = context;
Willy Tarreaufb0afa72015-04-03 14:46:27 +02001495 struct session *sess = s->sess;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001496 unsigned int rqf_last, rpf_last;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001497 unsigned int rq_prod_last, rq_cons_last;
1498 unsigned int rp_cons_last, rp_prod_last;
Willy Tarreau576507f2010-01-07 00:09:04 +01001499 unsigned int req_ana_back;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001500 struct channel *req, *res;
1501 struct stream_interface *si_f, *si_b;
Willy Tarreau3d07a162019-04-25 19:15:20 +02001502 unsigned int rate;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001503
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001504 DBG_TRACE_ENTER(STRM_EV_STRM_PROC, s);
1505
Willy Tarreau7af4fa92020-06-17 20:49:49 +02001506 activity[tid].stream_calls++;
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01001507
Willy Tarreau8f128b42014-11-28 15:07:47 +01001508 req = &s->req;
1509 res = &s->res;
1510
1511 si_f = &s->si[0];
1512 si_b = &s->si[1];
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001513
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001514 /* First, attempt to receive pending data from I/O layers */
Willy Tarreauade64782018-11-17 19:51:07 +01001515 si_sync_recv(si_f);
1516 si_sync_recv(si_b);
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001517
Willy Tarreau3d07a162019-04-25 19:15:20 +02001518 rate = update_freq_ctr(&s->call_rate, 1);
1519 if (rate >= 100000 && s->call_rate.prev_ctr) { // make sure to wait at least a full second
1520 stream_dump_and_crash(&s->obj_type, read_freq_ctr(&s->call_rate));
1521 }
Olivier Houchardc2aa7112018-09-11 18:27:21 +02001522
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001523 /* this data may be no longer valid, clear it */
Willy Tarreaueee5b512015-04-03 23:46:31 +02001524 if (s->txn)
1525 memset(&s->txn->auth, 0, sizeof(s->txn->auth));
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001526
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02001527 /* This flag must explicitly be set every time */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001528 req->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
1529 res->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001530
1531 /* Keep a copy of req/rep flags so that we can detect shutdowns */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001532 rqf_last = req->flags & ~CF_MASK_ANALYSER;
1533 rpf_last = res->flags & ~CF_MASK_ANALYSER;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001534
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001535 /* we don't want the stream interface functions to recursively wake us up */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001536 si_f->flags |= SI_FL_DONT_WAKE;
1537 si_b->flags |= SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001538
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001539 /* update pending events */
Olivier Houchard9f6af332018-05-25 14:04:04 +02001540 s->pending_events |= (state & TASK_WOKEN_ANY);
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001541
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001542 /* 1a: Check for low level timeouts if needed. We just set a flag on
1543 * stream interfaces when their timeouts have expired.
1544 */
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001545 if (unlikely(s->pending_events & TASK_WOKEN_TIMER)) {
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001546 si_check_timeouts(si_f);
1547 si_check_timeouts(si_b);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001548
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001549 /* check channel timeouts, and close the corresponding stream interfaces
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001550 * for future reads or writes. Note: this will also concern upper layers
1551 * but we do not touch any other flag. We must be careful and correctly
1552 * detect state changes when calling them.
1553 */
1554
Willy Tarreau8f128b42014-11-28 15:07:47 +01001555 channel_check_timeouts(req);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001556
Willy Tarreau8f128b42014-11-28 15:07:47 +01001557 if (unlikely((req->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1558 si_b->flags |= SI_FL_NOLINGER;
1559 si_shutw(si_b);
Willy Tarreau14641402009-12-29 14:49:56 +01001560 }
1561
Willy Tarreau8f128b42014-11-28 15:07:47 +01001562 if (unlikely((req->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1563 if (si_f->flags & SI_FL_NOHALF)
1564 si_f->flags |= SI_FL_NOLINGER;
1565 si_shutr(si_f);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001566 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001567
Willy Tarreau8f128b42014-11-28 15:07:47 +01001568 channel_check_timeouts(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001569
Willy Tarreau8f128b42014-11-28 15:07:47 +01001570 if (unlikely((res->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1571 si_f->flags |= SI_FL_NOLINGER;
1572 si_shutw(si_f);
Willy Tarreau14641402009-12-29 14:49:56 +01001573 }
1574
Willy Tarreau8f128b42014-11-28 15:07:47 +01001575 if (unlikely((res->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1576 if (si_b->flags & SI_FL_NOHALF)
1577 si_b->flags |= SI_FL_NOLINGER;
1578 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001579 }
Willy Tarreau798f4322012-11-08 14:49:17 +01001580
Christopher Fauleta00d8172016-11-10 14:58:05 +01001581 if (HAS_FILTERS(s))
1582 flt_stream_check_timeouts(s);
1583
Willy Tarreau798f4322012-11-08 14:49:17 +01001584 /* Once in a while we're woken up because the task expires. But
1585 * this does not necessarily mean that a timeout has been reached.
Willy Tarreau87b09662015-04-03 00:22:06 +02001586 * So let's not run a whole stream processing if only an expiration
Willy Tarreau798f4322012-11-08 14:49:17 +01001587 * timeout needs to be refreshed.
1588 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001589 if (!((req->flags | res->flags) &
Willy Tarreau798f4322012-11-08 14:49:17 +01001590 (CF_SHUTR|CF_READ_ACTIVITY|CF_READ_TIMEOUT|CF_SHUTW|
Willy Tarreauede3d882018-10-24 17:17:56 +02001591 CF_WRITE_ACTIVITY|CF_WRITE_TIMEOUT|CF_ANA_TIMEOUT)) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01001592 !((si_f->flags | si_b->flags) & (SI_FL_EXP|SI_FL_ERR)) &&
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001593 ((s->pending_events & TASK_WOKEN_ANY) == TASK_WOKEN_TIMER)) {
Willy Tarreau5fb04712016-05-04 10:18:37 +02001594 si_f->flags &= ~SI_FL_DONT_WAKE;
1595 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau798f4322012-11-08 14:49:17 +01001596 goto update_exp_and_leave;
Willy Tarreau5fb04712016-05-04 10:18:37 +02001597 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001598 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001599
Willy Tarreau829bd472019-06-06 09:17:23 +02001600 resync_stream_interface:
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001601 /* below we may emit error messages so we have to ensure that we have
1602 * our buffers properly allocated.
1603 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001604 if (!stream_alloc_work_buffer(s)) {
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001605 /* No buffer available, we've been subscribed to the list of
1606 * buffer waiters, let's wait for our turn.
1607 */
Willy Tarreau5fb04712016-05-04 10:18:37 +02001608 si_f->flags &= ~SI_FL_DONT_WAKE;
1609 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001610 goto update_exp_and_leave;
1611 }
1612
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001613 /* 1b: check for low-level errors reported at the stream interface.
1614 * First we check if it's a retryable error (in which case we don't
1615 * want to tell the buffer). Otherwise we report the error one level
1616 * upper by setting flags into the buffers. Note that the side towards
1617 * the client cannot have connect (hence retryable) errors. Also, the
1618 * connection setup code must be able to deal with any type of abort.
1619 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001620 srv = objt_server(s->target);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001621 if (unlikely(si_f->flags & SI_FL_ERR)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001622 if (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001623 si_shutr(si_f);
1624 si_shutw(si_f);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001625 si_report_error(si_f);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001626 if (!(req->analysers) && !(res->analysers)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001627 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1628 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001629 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001630 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001631 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001632 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001633 if (!(s->flags & SF_ERR_MASK))
1634 s->flags |= SF_ERR_CLICL;
1635 if (!(s->flags & SF_FINST_MASK))
1636 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001637 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001638 }
1639 }
1640
Willy Tarreau8f128b42014-11-28 15:07:47 +01001641 if (unlikely(si_b->flags & SI_FL_ERR)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001642 if (si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001643 si_shutr(si_b);
1644 si_shutw(si_b);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001645 si_report_error(si_b);
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001646 _HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001647 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001648 _HA_ATOMIC_ADD(&srv->counters.failed_resp, 1);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001649 if (!(req->analysers) && !(res->analysers)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001650 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1651 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001652 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001653 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001654 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001655 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001656 if (!(s->flags & SF_ERR_MASK))
1657 s->flags |= SF_ERR_SRVCL;
1658 if (!(s->flags & SF_FINST_MASK))
1659 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001660 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001661 }
1662 /* note: maybe we should process connection errors here ? */
1663 }
1664
Willy Tarreau4f283fa2019-06-05 14:34:03 +02001665 if (si_state_in(si_b->state, SI_SB_CON|SI_SB_RDY)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001666 /* we were trying to establish a connection on the server side,
1667 * maybe it succeeded, maybe it failed, maybe we timed out, ...
1668 */
Willy Tarreaud66ed882019-06-05 18:02:04 +02001669 if (si_b->state == SI_ST_RDY)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001670 back_handle_st_rdy(s);
Willy Tarreaud66ed882019-06-05 18:02:04 +02001671 else if (si_b->state == SI_ST_CON)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001672 back_handle_st_con(s);
Willy Tarreaud66ed882019-06-05 18:02:04 +02001673
1674 if (si_b->state == SI_ST_CER)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001675 back_handle_st_cer(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001676 else if (si_b->state == SI_ST_EST)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001677 back_establish(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001678
1679 /* state is now one of SI_ST_CON (still in progress), SI_ST_EST
1680 * (established), SI_ST_DIS (abort), SI_ST_CLO (last error),
1681 * SI_ST_ASS/SI_ST_TAR/SI_ST_REQ for retryable errors.
1682 */
1683 }
1684
Willy Tarreau8f128b42014-11-28 15:07:47 +01001685 rq_prod_last = si_f->state;
1686 rq_cons_last = si_b->state;
1687 rp_cons_last = si_f->state;
1688 rp_prod_last = si_b->state;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001689
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001690 /* Check for connection closure */
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001691 DBG_TRACE_POINT(STRM_EV_STRM_PROC, s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001692
1693 /* nothing special to be done on client side */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001694 if (unlikely(si_f->state == SI_ST_DIS))
1695 si_f->state = SI_ST_CLO;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001696
1697 /* When a server-side connection is released, we have to count it and
1698 * check for pending connections on this server.
1699 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001700 if (unlikely(si_b->state == SI_ST_DIS)) {
1701 si_b->state = SI_ST_CLO;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001702 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01001703 if (srv) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001704 if (s->flags & SF_CURR_SESS) {
1705 s->flags &= ~SF_CURR_SESS;
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001706 _HA_ATOMIC_SUB(&srv->cur_sess, 1);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001707 }
1708 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001709 if (may_dequeue_tasks(srv, s->be))
1710 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001711 }
1712 }
1713
1714 /*
1715 * Note: of the transient states (REQ, CER, DIS), only REQ may remain
1716 * at this point.
1717 */
1718
Willy Tarreau0be0ef92009-03-08 19:20:25 +01001719 resync_request:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001720 /* Analyse request */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001721 if (((req->flags & ~rqf_last) & CF_MASK_ANALYSER) ||
1722 ((req->flags ^ rqf_last) & CF_MASK_STATIC) ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01001723 (req->analysers && (req->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01001724 si_f->state != rq_prod_last ||
1725 si_b->state != rq_cons_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001726 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001727 unsigned int flags = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001728
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001729 if (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001730 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001731 unsigned int ana_list;
1732 unsigned int ana_back;
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001733
Willy Tarreau90deb182010-01-07 00:20:41 +01001734 /* it's up to the analysers to stop new connections,
1735 * disable reading or closing. Note: if an analyser
1736 * disables any of these bits, it is responsible for
1737 * enabling them again when it disables itself, so
1738 * that other analysers are called in similar conditions.
1739 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001740 channel_auto_read(req);
1741 channel_auto_connect(req);
1742 channel_auto_close(req);
Willy Tarreauedcf6682008-11-30 23:15:34 +01001743
1744 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01001745 * req->analysers, following the bit order from LSB
Willy Tarreauedcf6682008-11-30 23:15:34 +01001746 * to MSB. The analysers must remove themselves from
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001747 * the list when not needed. Any analyser may return 0
1748 * to break out of the loop, either because of missing
1749 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02001750 * kill the stream. We loop at least once through each
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001751 * analyser, and we may loop again if other analysers
1752 * are added in the middle.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001753 *
1754 * We build a list of analysers to run. We evaluate all
1755 * of these analysers in the order of the lower bit to
1756 * the higher bit. This ordering is very important.
1757 * An analyser will often add/remove other analysers,
1758 * including itself. Any changes to itself have no effect
1759 * on the loop. If it removes any other analysers, we
1760 * want those analysers not to be called anymore during
1761 * this loop. If it adds an analyser that is located
1762 * after itself, we want it to be scheduled for being
1763 * processed during the loop. If it adds an analyser
1764 * which is located before it, we want it to switch to
1765 * it immediately, even if it has already been called
1766 * once but removed since.
1767 *
1768 * In order to achieve this, we compare the analyser
1769 * list after the call with a copy of it before the
1770 * call. The work list is fed with analyser bits that
1771 * appeared during the call. Then we compare previous
1772 * work list with the new one, and check the bits that
1773 * appeared. If the lowest of these bits is lower than
1774 * the current bit, it means we have enabled a previous
1775 * analyser and must immediately loop again.
Willy Tarreauedcf6682008-11-30 23:15:34 +01001776 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001777
Willy Tarreau8f128b42014-11-28 15:07:47 +01001778 ana_list = ana_back = req->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001779 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001780 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01001781 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_FE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001782 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_FE);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001783 FLT_ANALYZE(s, req, http_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_HTTP);
1784 FLT_ANALYZE(s, req, http_wait_for_request_body, ana_list, ana_back, AN_REQ_HTTP_BODY);
1785 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 +02001786 FLT_ANALYZE(s, req, process_switching_rules, ana_list, ana_back, AN_REQ_SWITCHING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001787 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001788 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_BE);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001789 FLT_ANALYZE(s, req, http_process_req_common, ana_list, ana_back, AN_REQ_HTTP_PROCESS_BE, s->be);
1790 FLT_ANALYZE(s, req, http_process_tarpit, ana_list, ana_back, AN_REQ_HTTP_TARPIT);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001791 FLT_ANALYZE(s, req, process_server_rules, ana_list, ana_back, AN_REQ_SRV_RULES);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001792 FLT_ANALYZE(s, req, http_process_request, ana_list, ana_back, AN_REQ_HTTP_INNER);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001793 FLT_ANALYZE(s, req, tcp_persist_rdp_cookie, ana_list, ana_back, AN_REQ_PRST_RDP_COOKIE);
1794 FLT_ANALYZE(s, req, process_sticking_rules, ana_list, ana_back, AN_REQ_STICKING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001795 ANALYZE (s, req, flt_analyze_http_headers, ana_list, ana_back, AN_REQ_FLT_HTTP_HDRS);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001796 ANALYZE (s, req, http_request_forward_body, ana_list, ana_back, AN_REQ_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02001797 ANALYZE (s, req, pcli_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001798 ANALYZE (s, req, flt_xfer_data, ana_list, ana_back, AN_REQ_FLT_XFER_DATA);
1799 ANALYZE (s, req, flt_end_analyze, ana_list, ana_back, AN_REQ_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01001800 break;
1801 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001802 }
Willy Tarreau84455332009-03-15 22:34:05 +01001803
Willy Tarreau8f128b42014-11-28 15:07:47 +01001804 rq_prod_last = si_f->state;
1805 rq_cons_last = si_b->state;
1806 req->flags &= ~CF_WAKE_ONCE;
1807 rqf_last = req->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001808
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02001809 if ((req->flags ^ flags) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001810 goto resync_request;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001811 }
1812
Willy Tarreau576507f2010-01-07 00:09:04 +01001813 /* we'll monitor the request analysers while parsing the response,
1814 * because some response analysers may indirectly enable new request
1815 * analysers (eg: HTTP keep-alive).
1816 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001817 req_ana_back = req->analysers;
Willy Tarreau576507f2010-01-07 00:09:04 +01001818
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001819 resync_response:
1820 /* Analyse response */
1821
Willy Tarreau8f128b42014-11-28 15:07:47 +01001822 if (((res->flags & ~rpf_last) & CF_MASK_ANALYSER) ||
1823 (res->flags ^ rpf_last) & CF_MASK_STATIC ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01001824 (res->analysers && (res->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01001825 si_f->state != rp_cons_last ||
1826 si_b->state != rp_prod_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001827 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001828 unsigned int flags = res->flags;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001829
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001830 if (si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001831 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001832 unsigned int ana_list;
1833 unsigned int ana_back;
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001834
Willy Tarreau90deb182010-01-07 00:20:41 +01001835 /* it's up to the analysers to stop disable reading or
1836 * closing. Note: if an analyser disables any of these
1837 * bits, it is responsible for enabling them again when
1838 * it disables itself, so that other analysers are called
1839 * in similar conditions.
1840 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001841 channel_auto_read(res);
1842 channel_auto_close(res);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001843
1844 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01001845 * res->analysers, following the bit order from LSB
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001846 * to MSB. The analysers must remove themselves from
1847 * the list when not needed. Any analyser may return 0
1848 * to break out of the loop, either because of missing
1849 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02001850 * kill the stream. We loop at least once through each
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001851 * analyser, and we may loop again if other analysers
1852 * are added in the middle.
1853 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001854
Willy Tarreau8f128b42014-11-28 15:07:47 +01001855 ana_list = ana_back = res->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001856 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001857 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01001858 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_FE);
1859 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001860 FLT_ANALYZE(s, res, tcp_inspect_response, ana_list, ana_back, AN_RES_INSPECT);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001861 FLT_ANALYZE(s, res, http_wait_for_response, ana_list, ana_back, AN_RES_WAIT_HTTP);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001862 FLT_ANALYZE(s, res, process_store_rules, ana_list, ana_back, AN_RES_STORE_RULES);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001863 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 +01001864 ANALYZE (s, res, flt_analyze_http_headers, ana_list, ana_back, AN_RES_FLT_HTTP_HDRS);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001865 ANALYZE (s, res, http_response_forward_body, ana_list, ana_back, AN_RES_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02001866 ANALYZE (s, res, pcli_wait_for_response, ana_list, ana_back, AN_RES_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001867 ANALYZE (s, res, flt_xfer_data, ana_list, ana_back, AN_RES_FLT_XFER_DATA);
1868 ANALYZE (s, res, flt_end_analyze, ana_list, ana_back, AN_RES_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01001869 break;
1870 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001871 }
1872
Willy Tarreau8f128b42014-11-28 15:07:47 +01001873 rp_cons_last = si_f->state;
1874 rp_prod_last = si_b->state;
Christopher Fauletcdaea892017-07-06 15:49:30 +02001875 res->flags &= ~CF_WAKE_ONCE;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001876 rpf_last = res->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001877
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02001878 if ((res->flags ^ flags) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001879 goto resync_response;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001880 }
1881
Willy Tarreau576507f2010-01-07 00:09:04 +01001882 /* maybe someone has added some request analysers, so we must check and loop */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001883 if (req->analysers & ~req_ana_back)
Willy Tarreau576507f2010-01-07 00:09:04 +01001884 goto resync_request;
1885
Willy Tarreau8f128b42014-11-28 15:07:47 +01001886 if ((req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0499e352010-12-17 07:13:42 +01001887 goto resync_request;
1888
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001889 /* FIXME: here we should call protocol handlers which rely on
1890 * both buffers.
1891 */
1892
1893
1894 /*
Willy Tarreau87b09662015-04-03 00:22:06 +02001895 * Now we propagate unhandled errors to the stream. Normally
Willy Tarreauae526782010-03-04 20:34:23 +01001896 * we're just in a data phase here since it means we have not
1897 * seen any analyser who could set an error status.
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001898 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001899 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001900 if (unlikely(!(s->flags & SF_ERR_MASK))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001901 if (req->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001902 /* Report it if the client got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001903 req->analysers = 0;
1904 if (req->flags & CF_READ_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001905 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1906 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001907 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001908 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001909 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001910 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001911 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01001912 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001913 else if (req->flags & CF_READ_TIMEOUT) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001914 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1915 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001916 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001917 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001918 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001919 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001920 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01001921 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001922 else if (req->flags & CF_WRITE_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001923 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1924 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001925 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001926 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001927 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001928 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001929 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01001930 }
1931 else {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001932 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1933 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001934 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001935 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001936 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001937 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001938 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01001939 }
Willy Tarreau84455332009-03-15 22:34:05 +01001940 sess_set_term_flags(s);
Christopher Faulet5e1a9d72019-04-23 17:34:22 +02001941
1942 /* Abort the request if a client error occurred while
1943 * the backend stream-interface is in the SI_ST_INI
1944 * state. It is switched into the SI_ST_CLO state and
1945 * the request channel is erased. */
1946 if (si_b->state == SI_ST_INI) {
1947 si_b->state = SI_ST_CLO;
1948 channel_abort(req);
1949 if (IS_HTX_STRM(s))
1950 channel_htx_erase(req, htxbuf(&req->buf));
1951 else
1952 channel_erase(req);
1953 }
Willy Tarreau84455332009-03-15 22:34:05 +01001954 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001955 else if (res->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001956 /* Report it if the server got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001957 res->analysers = 0;
1958 if (res->flags & CF_READ_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001959 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1960 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001961 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001962 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001963 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001964 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001965 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01001966 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001967 else if (res->flags & CF_READ_TIMEOUT) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001968 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1969 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001970 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001971 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001972 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001973 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001974 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01001975 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001976 else if (res->flags & CF_WRITE_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001977 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1978 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001979 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001980 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001981 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001982 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001983 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01001984 }
1985 else {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001986 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1987 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001988 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001989 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001990 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001991 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001992 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01001993 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001994 sess_set_term_flags(s);
1995 }
Willy Tarreau84455332009-03-15 22:34:05 +01001996 }
1997
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001998 /*
1999 * Here we take care of forwarding unhandled data. This also includes
2000 * connection establishments and shutdown requests.
2001 */
2002
2003
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002004 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002005 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002006 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002007 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002008 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02002009 if (unlikely((!req->analysers || (req->analysers == AN_REQ_FLT_END && !(req->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002010 !(req->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002011 (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002012 (req->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002013 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002014 * attached to it. If any data are left in, we'll permit them to
2015 * move.
2016 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002017 channel_auto_read(req);
2018 channel_auto_connect(req);
2019 channel_auto_close(req);
Willy Tarreau5bd8c372009-01-19 00:32:22 +01002020
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002021 if (IS_HTX_STRM(s)) {
2022 struct htx *htx = htxbuf(&req->buf);
2023
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002024 /* We'll let data flow between the producer (if still connected)
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002025 * to the consumer.
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002026 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002027 co_set_data(req, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002028 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002029 channel_htx_forward_forever(req, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002030 }
2031 else {
2032 /* We'll let data flow between the producer (if still connected)
2033 * to the consumer (which might possibly not be connected yet).
2034 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002035 c_adv(req, ci_data(req));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002036 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2037 channel_forward_forever(req);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002038 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002039 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002040
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002041 /* check if it is wise to enable kernel splicing to forward request data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002042 if (!(req->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2043 req->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002044 (global.tune.options & GTUNE_USE_SPLICE) &&
Christopher Faulet276c1e02019-11-05 16:49:23 +01002045 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->rcv_pipe &&
2046 __objt_cs(si_f->end)->conn->mux && __objt_cs(si_f->end)->conn->mux->rcv_pipe) &&
2047 (objt_cs(si_b->end) && __objt_cs(si_b->end)->conn->xprt && __objt_cs(si_b->end)->conn->xprt->snd_pipe &&
2048 __objt_cs(si_b->end)->conn->mux && __objt_cs(si_b->end)->conn->mux->snd_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002049 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002050 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_REQ) ||
2051 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002052 (req->flags & CF_STREAMER_FAST)))) {
2053 req->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002054 }
2055
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002056 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002057 rqf_last = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002058
Willy Tarreau520d95e2009-09-19 21:04:57 +02002059 /* it's possible that an upper layer has requested a connection setup or abort.
2060 * There are 2 situations where we decide to establish a new connection :
2061 * - there are data scheduled for emission in the buffer
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002062 * - the CF_AUTO_CONNECT flag is set (active connection)
Willy Tarreau520d95e2009-09-19 21:04:57 +02002063 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002064 if (si_b->state == SI_ST_INI) {
Christopher Faulet5e1a9d72019-04-23 17:34:22 +02002065 if (!(req->flags & CF_SHUTW)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002066 if ((req->flags & CF_AUTO_CONNECT) || !channel_is_empty(req)) {
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002067 /* If we have an appctx, there is no connect method, so we
2068 * immediately switch to the connected state, otherwise we
2069 * perform a connection request.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002070 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002071 si_b->state = SI_ST_REQ; /* new connection requested */
2072 si_b->conn_retries = s->be->conn_retries;
Olivier Houchard602bf7d2019-05-10 13:59:15 +02002073 if ((s->be->retry_type &~ PR_RE_CONN_FAILED) &&
Olivier Houchard7dd7b902020-05-13 19:07:20 +02002074 (s->be->mode == PR_MODE_HTTP) &&
Olivier Houchard602bf7d2019-05-10 13:59:15 +02002075 !(si_b->flags & SI_FL_D_L7_RETRY))
Olivier Houcharda254a372019-04-05 15:30:12 +02002076 si_b->flags |= SI_FL_L7_RETRY;
Willy Tarreau520d95e2009-09-19 21:04:57 +02002077 }
Willy Tarreau73201222009-08-16 18:27:24 +02002078 }
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002079 else {
Willy Tarreau0542c8b2017-11-24 15:01:10 +01002080 si_release_endpoint(si_b);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002081 si_b->state = SI_ST_CLO; /* shutw+ini = abort */
2082 channel_shutw_now(req); /* fix buffer flags upon abort */
2083 channel_shutr_now(res);
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002084 }
Willy Tarreau92795622009-03-06 12:51:23 +01002085 }
2086
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002087
2088 /* we may have a pending connection request, or a connection waiting
2089 * for completion.
2090 */
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002091 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 +02002092 /* prune the request variables and swap to the response variables. */
2093 if (s->vars_reqres.scope != SCOPE_RES) {
Jerome Magnin2f44e882019-11-09 18:00:47 +01002094 if (!LIST_ISEMPTY(&s->vars_reqres.head))
Willy Tarreaucda7f3f2018-10-28 13:44:36 +01002095 vars_prune(&s->vars_reqres, s->sess, s);
Jerome Magnin2f44e882019-11-09 18:00:47 +01002096 vars_init(&s->vars_reqres, SCOPE_RES);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +02002097 }
2098
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002099 do {
2100 /* nb: step 1 might switch from QUE to ASS, but we first want
2101 * to give a chance to step 2 to perform a redirect if needed.
2102 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002103 if (si_b->state != SI_ST_REQ)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002104 back_try_conn_req(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002105 if (si_b->state == SI_ST_REQ)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002106 back_handle_st_req(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002107
Willy Tarreauada4c582020-03-04 16:42:03 +01002108 /* get a chance to complete an immediate connection setup */
2109 if (si_b->state == SI_ST_RDY)
2110 goto resync_stream_interface;
2111
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +01002112 /* applets directly go to the ESTABLISHED state. Similarly,
2113 * servers experience the same fate when their connection
2114 * is reused.
2115 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002116 if (unlikely(si_b->state == SI_ST_EST))
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002117 back_establish(s);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01002118
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002119 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002120 if (si_b->state == SI_ST_ASS && srv && srv->rdr_len && (s->flags & SF_REDIRECTABLE))
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02002121 http_perform_server_redirect(s, si_b);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002122 } while (si_b->state == SI_ST_ASS);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002123 }
2124
Willy Tarreau829bd472019-06-06 09:17:23 +02002125 /* Let's see if we can send the pending request now */
2126 si_sync_send(si_b);
2127
2128 /*
2129 * Now forward all shutdown requests between both sides of the request buffer
2130 */
2131
2132 /* first, let's check if the request buffer needs to shutdown(write), which may
2133 * happen either because the input is closed or because we want to force a close
2134 * once the server has begun to respond. If a half-closed timeout is set, we adjust
2135 * the other side's timeout as well.
2136 */
2137 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
2138 (CF_AUTO_CLOSE|CF_SHUTR))) {
2139 channel_shutw_now(req);
2140 }
2141
2142 /* shutdown(write) pending */
2143 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2144 channel_is_empty(req))) {
2145 if (req->flags & CF_READ_ERROR)
2146 si_b->flags |= SI_FL_NOLINGER;
2147 si_shutw(si_b);
2148 }
2149
2150 /* shutdown(write) done on server side, we must stop the client too */
2151 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW &&
2152 !req->analysers))
2153 channel_shutr_now(req);
2154
2155 /* shutdown(read) pending */
2156 if (unlikely((req->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2157 if (si_f->flags & SI_FL_NOHALF)
2158 si_f->flags |= SI_FL_NOLINGER;
2159 si_shutr(si_f);
2160 }
2161
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002162 /* Benchmarks have shown that it's optimal to do a full resync now */
Willy Tarreau829bd472019-06-06 09:17:23 +02002163 if (si_f->state == SI_ST_DIS ||
2164 si_state_in(si_b->state, SI_SB_RDY|SI_SB_DIS) ||
2165 (si_f->flags & SI_FL_ERR && si_f->state != SI_ST_CLO) ||
2166 (si_b->flags & SI_FL_ERR && si_b->state != SI_ST_CLO))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002167 goto resync_stream_interface;
2168
Willy Tarreau815a9b22010-07-27 17:15:12 +02002169 /* otherwise we want to check if we need to resync the req buffer or not */
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02002170 if ((req->flags ^ rqf_last) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002171 goto resync_request;
2172
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002173 /* perform output updates to the response buffer */
Willy Tarreau84455332009-03-15 22:34:05 +01002174
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002175 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002176 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002177 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002178 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002179 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02002180 if (unlikely((!res->analysers || (res->analysers == AN_RES_FLT_END && !(res->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002181 !(res->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002182 si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002183 (res->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002184 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002185 * attached to it. If any data are left in, we'll permit them to
2186 * move.
2187 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002188 channel_auto_read(res);
2189 channel_auto_close(res);
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002190
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002191 if (IS_HTX_STRM(s)) {
2192 struct htx *htx = htxbuf(&res->buf);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002193
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002194 /* We'll let data flow between the producer (if still connected)
2195 * to the consumer.
2196 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002197 co_set_data(res, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002198 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002199 channel_htx_forward_forever(res, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002200 }
2201 else {
2202 /* We'll let data flow between the producer (if still connected)
2203 * to the consumer.
2204 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002205 c_adv(res, ci_data(res));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002206 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2207 channel_forward_forever(res);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002208 }
Willy Tarreau42529c32015-07-09 18:38:57 +02002209
Willy Tarreauce887fd2012-05-12 12:50:00 +02002210 /* if we have no analyser anymore in any direction and have a
Willy Tarreau05cdd962014-05-10 14:30:07 +02002211 * tunnel timeout set, use it now. Note that we must respect
2212 * the half-closed timeouts as well.
Willy Tarreauce887fd2012-05-12 12:50:00 +02002213 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002214 if (!req->analysers && s->be->timeout.tunnel) {
2215 req->rto = req->wto = res->rto = res->wto =
Willy Tarreauce887fd2012-05-12 12:50:00 +02002216 s->be->timeout.tunnel;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002217
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002218 if ((req->flags & CF_SHUTR) && tick_isset(sess->fe->timeout.clientfin))
2219 res->wto = sess->fe->timeout.clientfin;
Willy Tarreau8f128b42014-11-28 15:07:47 +01002220 if ((req->flags & CF_SHUTW) && tick_isset(s->be->timeout.serverfin))
2221 res->rto = s->be->timeout.serverfin;
2222 if ((res->flags & CF_SHUTR) && tick_isset(s->be->timeout.serverfin))
2223 req->wto = s->be->timeout.serverfin;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002224 if ((res->flags & CF_SHUTW) && tick_isset(sess->fe->timeout.clientfin))
2225 req->rto = sess->fe->timeout.clientfin;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002226
Willy Tarreau8f128b42014-11-28 15:07:47 +01002227 req->rex = tick_add(now_ms, req->rto);
2228 req->wex = tick_add(now_ms, req->wto);
2229 res->rex = tick_add(now_ms, res->rto);
2230 res->wex = tick_add(now_ms, res->wto);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002231 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002232 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002233
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002234 /* check if it is wise to enable kernel splicing to forward response data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002235 if (!(res->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2236 res->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002237 (global.tune.options & GTUNE_USE_SPLICE) &&
Christopher Faulet276c1e02019-11-05 16:49:23 +01002238 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->snd_pipe &&
2239 __objt_cs(si_f->end)->conn->mux && __objt_cs(si_f->end)->conn->mux->snd_pipe) &&
2240 (objt_cs(si_b->end) && __objt_cs(si_b->end)->conn->xprt && __objt_cs(si_b->end)->conn->xprt->rcv_pipe &&
2241 __objt_cs(si_b->end)->conn->mux && __objt_cs(si_b->end)->conn->mux->rcv_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002242 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002243 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_RTR) ||
2244 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002245 (res->flags & CF_STREAMER_FAST)))) {
2246 res->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002247 }
2248
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002249 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002250 rpf_last = res->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002251
Willy Tarreau829bd472019-06-06 09:17:23 +02002252 /* Let's see if we can send the pending response now */
2253 si_sync_send(si_f);
2254
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002255 /*
2256 * Now forward all shutdown requests between both sides of the buffer
2257 */
2258
2259 /*
2260 * FIXME: this is probably where we should produce error responses.
2261 */
2262
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002263 /* first, let's check if the response buffer needs to shutdown(write) */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002264 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau05cdd962014-05-10 14:30:07 +02002265 (CF_AUTO_CLOSE|CF_SHUTR))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002266 channel_shutw_now(res);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002267 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002268
2269 /* shutdown(write) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002270 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2271 channel_is_empty(res))) {
2272 si_shutw(si_f);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002273 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002274
2275 /* shutdown(write) done on the client side, we must stop the server too */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002276 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW) &&
2277 !res->analysers)
2278 channel_shutr_now(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002279
2280 /* shutdown(read) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002281 if (unlikely((res->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2282 if (si_b->flags & SI_FL_NOHALF)
2283 si_b->flags |= SI_FL_NOLINGER;
2284 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002285 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002286
Willy Tarreau829bd472019-06-06 09:17:23 +02002287 if (si_f->state == SI_ST_DIS ||
2288 si_state_in(si_b->state, SI_SB_RDY|SI_SB_DIS) ||
2289 (si_f->flags & SI_FL_ERR && si_f->state != SI_ST_CLO) ||
2290 (si_b->flags & SI_FL_ERR && si_b->state != SI_ST_CLO))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002291 goto resync_stream_interface;
2292
Willy Tarreau3c5c0662019-06-06 14:32:49 +02002293 if ((req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002294 goto resync_request;
2295
Willy Tarreau8f128b42014-11-28 15:07:47 +01002296 if ((res->flags ^ rpf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002297 goto resync_response;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002298
Willy Tarreau829bd472019-06-06 09:17:23 +02002299 if (((req->flags ^ rqf_last) | (res->flags ^ rpf_last)) & CF_MASK_ANALYSER)
2300 goto resync_request;
2301
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002302 /* we're interested in getting wakeups again */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002303 si_f->flags &= ~SI_FL_DONT_WAKE;
2304 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002305
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002306 /* This is needed only when debugging is enabled, to indicate
2307 * client-side or server-side close. Please note that in the unlikely
2308 * event where both sides would close at once, the sequence is reported
2309 * on the server side first.
2310 */
2311 if (unlikely((global.mode & MODE_DEBUG) &&
2312 (!(global.mode & MODE_QUIET) ||
2313 (global.mode & MODE_VERBOSE)))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002314 if (si_b->state == SI_ST_CLO &&
2315 si_b->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002316 chunk_printf(&trash, "%08x:%s.srvcls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002317 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002318 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2319 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01002320 DISGUISE(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002321 }
2322
Willy Tarreau8f128b42014-11-28 15:07:47 +01002323 if (si_f->state == SI_ST_CLO &&
2324 si_f->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002325 chunk_printf(&trash, "%08x:%s.clicls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002326 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002327 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2328 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01002329 DISGUISE(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002330 }
2331 }
2332
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002333 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 +02002334 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED) && !(s->flags & SF_IGNORE))
Willy Tarreau87b09662015-04-03 00:22:06 +02002335 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002336
Willy Tarreaud14844a2018-11-08 18:15:29 +01002337 si_update_both(si_f, si_b);
Olivier Houchard53216e72018-10-10 15:46:36 +02002338
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002339 /* Trick: if a request is being waiting for the server to respond,
2340 * and if we know the server can timeout, we don't want the timeout
2341 * to expire on the client side first, but we're still interested
2342 * in passing data from the client to the server (eg: POST). Thus,
2343 * we can cancel the client's request timeout if the server's
2344 * request timeout is set and the server has not yet sent a response.
2345 */
2346
Willy Tarreau8f128b42014-11-28 15:07:47 +01002347 if ((res->flags & (CF_AUTO_CLOSE|CF_SHUTR)) == 0 &&
2348 (tick_isset(req->wex) || tick_isset(res->rex))) {
2349 req->flags |= CF_READ_NOEXP;
2350 req->rex = TICK_ETERNITY;
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002351 }
2352
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002353 /* Reset pending events now */
2354 s->pending_events = 0;
2355
Willy Tarreau798f4322012-11-08 14:49:17 +01002356 update_exp_and_leave:
Willy Tarreau5fb04712016-05-04 10:18:37 +02002357 /* Note: please ensure that if you branch here you disable SI_FL_DONT_WAKE */
Christopher Fauleta00d8172016-11-10 14:58:05 +01002358 t->expire = tick_first((tick_is_expired(t->expire, now_ms) ? 0 : t->expire),
2359 tick_first(tick_first(req->rex, req->wex),
2360 tick_first(res->rex, res->wex)));
Willy Tarreaudef0d222016-11-08 22:03:00 +01002361 if (!req->analysers)
2362 req->analyse_exp = TICK_ETERNITY;
2363
2364 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED) &&
2365 (!tick_isset(req->analyse_exp) || tick_is_expired(req->analyse_exp, now_ms)))
2366 req->analyse_exp = tick_add(now_ms, 5000);
2367
2368 t->expire = tick_first(t->expire, req->analyse_exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002369
Willy Tarreau9a398be2017-11-10 17:14:23 +01002370 t->expire = tick_first(t->expire, res->analyse_exp);
2371
Willy Tarreau8f128b42014-11-28 15:07:47 +01002372 if (si_f->exp)
2373 t->expire = tick_first(t->expire, si_f->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002374
Willy Tarreau8f128b42014-11-28 15:07:47 +01002375 if (si_b->exp)
2376 t->expire = tick_first(t->expire, si_b->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002377
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002378 s->pending_events &= ~(TASK_WOKEN_TIMER | TASK_WOKEN_RES);
Willy Tarreau87b09662015-04-03 00:22:06 +02002379 stream_release_buffers(s);
Christopher Fauleteea8fc72019-11-05 16:18:10 +01002380
2381 DBG_TRACE_DEVEL("queuing", STRM_EV_STRM_PROC, s);
Willy Tarreau26c25062009-03-08 09:38:41 +01002382 return t; /* nothing more to do */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002383 }
2384
Christopher Fauleteea8fc72019-11-05 16:18:10 +01002385 DBG_TRACE_DEVEL("releasing", STRM_EV_STRM_PROC, s);
2386
Willy Tarreaue7dff022015-04-03 01:14:29 +02002387 if (s->flags & SF_BE_ASSIGNED)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002388 _HA_ATOMIC_SUB(&s->be->beconn, 1);
Willy Tarreau6f5e4b92017-09-15 09:07:56 +02002389
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002390 if (unlikely((global.mode & MODE_DEBUG) &&
2391 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)))) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002392 chunk_printf(&trash, "%08x:%s.closed[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002393 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002394 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2395 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01002396 DISGUISE(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002397 }
2398
2399 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
Olivier Houchard4c18f942019-07-31 18:05:26 +02002400 if (!(s->flags & SF_IGNORE))
2401 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002402
Willy Tarreaueee5b512015-04-03 23:46:31 +02002403 if (s->txn && s->txn->status) {
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002404 int n;
2405
Willy Tarreaueee5b512015-04-03 23:46:31 +02002406 n = s->txn->status / 100;
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002407 if (n < 1 || n > 5)
2408 n = 0;
2409
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002410 if (sess->fe->mode == PR_MODE_HTTP) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002411 _HA_ATOMIC_ADD(&sess->fe->fe_counters.p.http.rsp[n], 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002412 }
Willy Tarreaue7dff022015-04-03 01:14:29 +02002413 if ((s->flags & SF_BE_ASSIGNED) &&
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002414 (s->be->mode == PR_MODE_HTTP)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002415 _HA_ATOMIC_ADD(&s->be->be_counters.p.http.rsp[n], 1);
2416 _HA_ATOMIC_ADD(&s->be->be_counters.p.http.cum_req, 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002417 }
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002418 }
2419
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002420 /* let's do a final log if we need it */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002421 if (!LIST_ISEMPTY(&sess->fe->logformat) && s->logs.logwait &&
Willy Tarreaue7dff022015-04-03 01:14:29 +02002422 !(s->flags & SF_MONITOR) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002423 (!(sess->fe->options & PR_O_NULLNOLOG) || req->total)) {
Willy Tarreau66425e32018-07-25 06:55:12 +02002424 /* we may need to know the position in the queue */
2425 pendconn_free(s);
Willy Tarreaua5555ec2008-11-30 19:02:32 +01002426 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002427 }
2428
Willy Tarreau87b09662015-04-03 00:22:06 +02002429 /* update time stats for this stream */
2430 stream_update_time_stats(s);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002431
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002432 /* the task MUST not be in the run queue anymore */
Willy Tarreau87b09662015-04-03 00:22:06 +02002433 stream_free(s);
Olivier Houchard3f795f72019-04-17 22:51:06 +02002434 task_destroy(t);
Willy Tarreau26c25062009-03-08 09:38:41 +01002435 return NULL;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002436}
2437
Willy Tarreau87b09662015-04-03 00:22:06 +02002438/* Update the stream's backend and server time stats */
2439void stream_update_time_stats(struct stream *s)
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002440{
2441 int t_request;
2442 int t_queue;
2443 int t_connect;
2444 int t_data;
2445 int t_close;
2446 struct server *srv;
Marcin Deraneka8dbdf32020-05-15 20:02:40 +02002447 unsigned int samples_window;
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002448
2449 t_request = 0;
2450 t_queue = s->logs.t_queue;
2451 t_connect = s->logs.t_connect;
2452 t_close = s->logs.t_close;
2453 t_data = s->logs.t_data;
2454
2455 if (s->be->mode != PR_MODE_HTTP)
2456 t_data = t_connect;
2457
2458 if (t_connect < 0 || t_data < 0)
2459 return;
2460
2461 if (tv_isge(&s->logs.tv_request, &s->logs.tv_accept))
2462 t_request = tv_ms_elapsed(&s->logs.tv_accept, &s->logs.tv_request);
2463
2464 t_data -= t_connect;
2465 t_connect -= t_queue;
2466 t_queue -= t_request;
2467
2468 srv = objt_server(s->target);
2469 if (srv) {
Marcin Deraneka8dbdf32020-05-15 20:02:40 +02002470 samples_window = (((s->be->mode == PR_MODE_HTTP) ?
2471 srv->counters.p.http.cum_req : srv->counters.cum_lbconn) > TIME_STATS_SAMPLES) ? TIME_STATS_SAMPLES : 0;
2472 swrate_add_dynamic(&srv->counters.q_time, samples_window, t_queue);
2473 swrate_add_dynamic(&srv->counters.c_time, samples_window, t_connect);
2474 swrate_add_dynamic(&srv->counters.d_time, samples_window, t_data);
2475 swrate_add_dynamic(&srv->counters.t_time, samples_window, t_close);
Christopher Fauletefb41f02019-11-08 14:53:15 +01002476 HA_ATOMIC_UPDATE_MAX(&srv->counters.qtime_max, t_queue);
2477 HA_ATOMIC_UPDATE_MAX(&srv->counters.ctime_max, t_connect);
2478 HA_ATOMIC_UPDATE_MAX(&srv->counters.dtime_max, t_data);
2479 HA_ATOMIC_UPDATE_MAX(&srv->counters.ttime_max, t_close);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002480 }
Marcin Deraneka8dbdf32020-05-15 20:02:40 +02002481 samples_window = (((s->be->mode == PR_MODE_HTTP) ?
2482 s->be->be_counters.p.http.cum_req : s->be->be_counters.cum_lbconn) > TIME_STATS_SAMPLES) ? TIME_STATS_SAMPLES : 0;
2483 swrate_add_dynamic(&s->be->be_counters.q_time, samples_window, t_queue);
2484 swrate_add_dynamic(&s->be->be_counters.c_time, samples_window, t_connect);
2485 swrate_add_dynamic(&s->be->be_counters.d_time, samples_window, t_data);
2486 swrate_add_dynamic(&s->be->be_counters.t_time, samples_window, t_close);
Christopher Fauletefb41f02019-11-08 14:53:15 +01002487 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.qtime_max, t_queue);
2488 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.ctime_max, t_connect);
2489 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.dtime_max, t_data);
2490 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.ttime_max, t_close);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002491}
2492
Willy Tarreau7c669d72008-06-20 15:04:11 +02002493/*
2494 * This function adjusts sess->srv_conn and maintains the previous and new
Willy Tarreau87b09662015-04-03 00:22:06 +02002495 * server's served stream counts. Setting newsrv to NULL is enough to release
Willy Tarreau7c669d72008-06-20 15:04:11 +02002496 * current connection slot. This function also notifies any LB algo which might
Willy Tarreau87b09662015-04-03 00:22:06 +02002497 * expect to be informed about any change in the number of active streams on a
Willy Tarreau7c669d72008-06-20 15:04:11 +02002498 * server.
2499 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002500void sess_change_server(struct stream *sess, struct server *newsrv)
Willy Tarreau7c669d72008-06-20 15:04:11 +02002501{
Willy Tarreau49e10802021-02-17 13:33:24 +01002502 struct server *oldsrv = sess->srv_conn;
2503
2504 if (oldsrv == newsrv)
Willy Tarreau7c669d72008-06-20 15:04:11 +02002505 return;
2506
Willy Tarreau49e10802021-02-17 13:33:24 +01002507 if (oldsrv) {
2508 _HA_ATOMIC_SUB(&oldsrv->served, 1);
2509 _HA_ATOMIC_SUB(&oldsrv->proxy->served, 1);
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002510 __ha_barrier_atomic_store();
Willy Tarreau2b437002021-02-17 16:01:37 +01002511 if (oldsrv->proxy->lbprm.server_drop_conn)
2512 oldsrv->proxy->lbprm.server_drop_conn(oldsrv, 0);
Willy Tarreau87b09662015-04-03 00:22:06 +02002513 stream_del_srv_conn(sess);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002514 }
2515
2516 if (newsrv) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002517 _HA_ATOMIC_ADD(&newsrv->served, 1);
2518 _HA_ATOMIC_ADD(&newsrv->proxy->served, 1);
2519 __ha_barrier_atomic_store();
Willy Tarreau2b437002021-02-17 16:01:37 +01002520 if (newsrv->proxy->lbprm.server_take_conn)
2521 newsrv->proxy->lbprm.server_take_conn(newsrv, 0);
Willy Tarreau87b09662015-04-03 00:22:06 +02002522 stream_add_srv_conn(sess, newsrv);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002523 }
2524}
2525
Willy Tarreau84455332009-03-15 22:34:05 +01002526/* Handle server-side errors for default protocols. It is called whenever a a
2527 * connection setup is aborted or a request is aborted in queue. It sets the
Willy Tarreau87b09662015-04-03 00:22:06 +02002528 * stream termination flags so that the caller does not have to worry about
Willy Tarreau84455332009-03-15 22:34:05 +01002529 * them. It's installed as ->srv_error for the server-side stream_interface.
2530 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002531void default_srv_error(struct stream *s, struct stream_interface *si)
Willy Tarreau84455332009-03-15 22:34:05 +01002532{
2533 int err_type = si->err_type;
2534 int err = 0, fin = 0;
2535
2536 if (err_type & SI_ET_QUEUE_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002537 err = SF_ERR_CLICL;
2538 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002539 }
2540 else if (err_type & SI_ET_CONN_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002541 err = SF_ERR_CLICL;
2542 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002543 }
2544 else if (err_type & SI_ET_QUEUE_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002545 err = SF_ERR_SRVTO;
2546 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002547 }
2548 else if (err_type & SI_ET_QUEUE_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002549 err = SF_ERR_SRVCL;
2550 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002551 }
2552 else if (err_type & SI_ET_CONN_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002553 err = SF_ERR_SRVTO;
2554 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002555 }
2556 else if (err_type & SI_ET_CONN_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002557 err = SF_ERR_SRVCL;
2558 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002559 }
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002560 else if (err_type & SI_ET_CONN_RES) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002561 err = SF_ERR_RESOURCE;
2562 fin = SF_FINST_C;
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002563 }
Willy Tarreau84455332009-03-15 22:34:05 +01002564 else /* SI_ET_CONN_OTHER and others */ {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002565 err = SF_ERR_INTERNAL;
2566 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002567 }
2568
Willy Tarreaue7dff022015-04-03 01:14:29 +02002569 if (!(s->flags & SF_ERR_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002570 s->flags |= err;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002571 if (!(s->flags & SF_FINST_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002572 s->flags |= fin;
2573}
Willy Tarreau7c669d72008-06-20 15:04:11 +02002574
Willy Tarreaue7dff022015-04-03 01:14:29 +02002575/* kill a stream and set the termination flags to <why> (one of SF_ERR_*) */
Willy Tarreau87b09662015-04-03 00:22:06 +02002576void stream_shutdown(struct stream *stream, int why)
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002577{
Willy Tarreau87b09662015-04-03 00:22:06 +02002578 if (stream->req.flags & (CF_SHUTW|CF_SHUTW_NOW))
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002579 return;
2580
Willy Tarreau87b09662015-04-03 00:22:06 +02002581 channel_shutw_now(&stream->req);
2582 channel_shutr_now(&stream->res);
2583 stream->task->nice = 1024;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002584 if (!(stream->flags & SF_ERR_MASK))
Willy Tarreau87b09662015-04-03 00:22:06 +02002585 stream->flags |= why;
2586 task_wakeup(stream->task, TASK_WOKEN_OTHER);
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002587}
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02002588
Willy Tarreau5484d582019-05-22 09:33:03 +02002589/* Appends a dump of the state of stream <s> into buffer <buf> which must have
2590 * preliminary be prepared by its caller, with each line prepended by prefix
2591 * <pfx>, and each line terminated by character <eol>.
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002592 */
Willy Tarreau5484d582019-05-22 09:33:03 +02002593void stream_dump(struct buffer *buf, const struct stream *s, const char *pfx, char eol)
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002594{
2595 const struct conn_stream *csf, *csb;
2596 const struct connection *cof, *cob;
2597 const struct appctx *acf, *acb;
2598 const struct server *srv;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002599 const char *src = "unknown";
2600 const char *dst = "unknown";
2601 char pn[INET6_ADDRSTRLEN];
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002602 const struct channel *req, *res;
2603 const struct stream_interface *si_f, *si_b;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002604
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002605 if (!s) {
Willy Tarreau5484d582019-05-22 09:33:03 +02002606 chunk_appendf(buf, "%sstrm=%p%c", pfx, s, eol);
2607 return;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002608 }
2609
Willy Tarreau5484d582019-05-22 09:33:03 +02002610 if (s->obj_type != OBJ_TYPE_STREAM) {
2611 chunk_appendf(buf, "%sstrm=%p [invalid type=%d(%s)]%c",
2612 pfx, s, s->obj_type, obj_type_name(&s->obj_type), eol);
2613 return;
2614 }
2615
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002616 si_f = &s->si[0];
2617 si_b = &s->si[1];
2618 req = &s->req;
2619 res = &s->res;
2620
2621 csf = objt_cs(si_f->end);
2622 cof = cs_conn(csf);
2623 acf = objt_appctx(si_f->end);
Willy Tarreau71e34c12019-07-17 15:07:06 +02002624 if (cof && cof->src && addr_to_str(cof->src, pn, sizeof(pn)) >= 0)
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002625 src = pn;
2626 else if (acf)
2627 src = acf->applet->name;
2628
2629 csb = objt_cs(si_b->end);
2630 cob = cs_conn(csb);
2631 acb = objt_appctx(si_b->end);
2632 srv = objt_server(s->target);
2633 if (srv)
2634 dst = srv->id;
2635 else if (acb)
2636 dst = acb->applet->name;
2637
Willy Tarreau5484d582019-05-22 09:33:03 +02002638 chunk_appendf(buf,
2639 "%sstrm=%p src=%s fe=%s be=%s dst=%s%c"
2640 "%srqf=%x rqa=%x rpf=%x rpa=%x sif=%s,%x sib=%s,%x%c"
2641 "%saf=%p,%u csf=%p,%x%c"
2642 "%sab=%p,%u csb=%p,%x%c"
2643 "%scof=%p,%x:%s(%p)/%s(%p)/%s(%d)%c"
2644 "%scob=%p,%x:%s(%p)/%s(%p)/%s(%d)%c"
2645 "",
2646 pfx, s, src, s->sess->fe->id, s->be->id, dst, eol,
2647 pfx, req->flags, req->analysers, res->flags, res->analysers,
2648 si_state_str(si_f->state), si_f->flags,
2649 si_state_str(si_b->state), si_b->flags, eol,
2650 pfx, acf, acf ? acf->st0 : 0, csf, csf ? csf->flags : 0, eol,
2651 pfx, acb, acb ? acb->st0 : 0, csb, csb ? csb->flags : 0, eol,
2652 pfx, cof, cof ? cof->flags : 0, conn_get_mux_name(cof), cof?cof->ctx:0, conn_get_xprt_name(cof),
2653 cof ? cof->xprt_ctx : 0, conn_get_ctrl_name(cof), cof ? cof->handle.fd : 0, eol,
2654 pfx, cob, cob ? cob->flags : 0, conn_get_mux_name(cob), cob?cob->ctx:0, conn_get_xprt_name(cob),
2655 cob ? cob->xprt_ctx : 0, conn_get_ctrl_name(cob), cob ? cob->handle.fd : 0, eol);
2656}
2657
2658/* dumps an error message for type <type> at ptr <ptr> related to stream <s>,
Willy Tarreaub106ce12019-05-22 08:57:01 +02002659 * having reached loop rate <rate>, then aborts hoping to retrieve a core.
Willy Tarreau5484d582019-05-22 09:33:03 +02002660 */
2661void stream_dump_and_crash(enum obj_type *obj, int rate)
2662{
2663 const struct stream *s;
Willy Tarreau5484d582019-05-22 09:33:03 +02002664 char *msg = NULL;
2665 const void *ptr;
2666
2667 ptr = s = objt_stream(obj);
2668 if (!s) {
2669 const struct appctx *appctx = objt_appctx(obj);
2670 if (!appctx)
2671 return;
2672 ptr = appctx;
2673 s = si_strm(appctx->owner);
2674 if (!s)
2675 return;
2676 }
2677
Willy Tarreau5484d582019-05-22 09:33:03 +02002678 chunk_reset(&trash);
2679 stream_dump(&trash, s, "", ' ');
Willy Tarreau9753d612020-05-01 16:57:02 +02002680
2681 chunk_appendf(&trash, "filters={");
2682 if (HAS_FILTERS(s)) {
2683 struct filter *filter;
2684
2685 list_for_each_entry(filter, &s->strm_flt.filters, list) {
2686 if (filter->list.p != &s->strm_flt.filters)
2687 chunk_appendf(&trash, ", ");
2688 chunk_appendf(&trash, "%p=\"%s\"", filter, FLT_ID(filter));
2689 }
2690 }
2691 chunk_appendf(&trash, "}");
2692
Willy Tarreaub106ce12019-05-22 08:57:01 +02002693 memprintf(&msg,
2694 "A bogus %s [%p] is spinning at %d calls per second and refuses to die, "
2695 "aborting now! Please report this error to developers "
2696 "[%s]\n",
Willy Tarreau5484d582019-05-22 09:33:03 +02002697 obj_type_name(obj), ptr, rate, trash.area);
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002698
2699 ha_alert("%s", msg);
2700 send_log(NULL, LOG_EMERG, "%s", msg);
2701 abort();
2702}
2703
Willy Tarreau67de95e2021-02-24 10:37:01 +01002704/* initialize the require structures */
2705static void init_stream()
2706{
2707 int thr;
2708
2709 for (thr = 0; thr < MAX_THREADS; thr++)
2710 LIST_INIT(&ha_thread_info[thr].streams);
2711}
2712INITCALL0(STG_INIT, init_stream);
2713
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002714/* Generates a unique ID based on the given <format>, stores it in the given <strm> and
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002715 * returns the unique ID.
2716
2717 * If this function fails to allocate memory IST_NULL is returned.
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002718 *
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002719 * If an ID is already stored within the stream nothing happens existing unique ID is
2720 * returned.
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002721 */
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002722struct ist stream_generate_unique_id(struct stream *strm, struct list *format)
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002723{
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002724 if (isttest(strm->unique_id)) {
2725 return strm->unique_id;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002726 }
2727 else {
2728 char *unique_id;
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002729 int length;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002730 if ((unique_id = pool_alloc(pool_head_uniqueid)) == NULL)
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002731 return IST_NULL;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002732
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002733 length = build_logline(strm, unique_id, UNIQUEID_LEN, format);
2734 strm->unique_id = ist2(unique_id, length);
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002735
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002736 return strm->unique_id;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002737 }
2738}
2739
Willy Tarreau8b22a712010-06-18 17:46:06 +02002740/************************************************************************/
2741/* All supported ACL keywords must be declared here. */
2742/************************************************************************/
2743
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02002744/* 0=OK, <0=Alert, >0=Warning */
2745static enum act_parse_ret stream_parse_use_service(const char **args, int *cur_arg,
2746 struct proxy *px, struct act_rule *rule,
2747 char **err)
2748{
2749 struct action_kw *kw;
2750
2751 /* Check if the service name exists. */
2752 if (*(args[*cur_arg]) == 0) {
2753 memprintf(err, "'%s' expects a service name.", args[0]);
Thierry FOURNIER337eae12015-11-26 19:48:04 +01002754 return ACT_RET_PRS_ERR;
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02002755 }
2756
2757 /* lookup for keyword corresponding to a service. */
2758 kw = action_lookup(&service_keywords, args[*cur_arg]);
2759 if (!kw) {
2760 memprintf(err, "'%s' unknown service name.", args[1]);
2761 return ACT_RET_PRS_ERR;
2762 }
2763 (*cur_arg)++;
2764
2765 /* executes specific rule parser. */
2766 rule->kw = kw;
2767 if (kw->parse((const char **)args, cur_arg, px, rule, err) == ACT_RET_PRS_ERR)
2768 return ACT_RET_PRS_ERR;
2769
2770 /* Register processing function. */
2771 rule->action_ptr = process_use_service;
2772 rule->action = ACT_CUSTOM;
2773
2774 return ACT_RET_PRS_OK;
2775}
2776
2777void service_keywords_register(struct action_kw_list *kw_list)
2778{
2779 LIST_ADDQ(&service_keywords, &kw_list->list);
2780}
2781
Thierry Fournier4b5382d2020-11-28 19:32:14 +01002782struct action_kw *service_find(const char *kw)
2783{
2784 return action_lookup(&service_keywords, kw);
2785}
2786
Willy Tarreau679bba12019-03-19 08:08:10 +01002787/* Lists the known services on <out> */
2788void list_services(FILE *out)
2789{
2790 struct action_kw_list *kw_list;
2791 int found = 0;
2792 int i;
2793
2794 fprintf(out, "Available services :");
2795 list_for_each_entry(kw_list, &service_keywords, list) {
2796 for (i = 0; kw_list->kw[i].kw != NULL; i++) {
Willy Tarreau679bba12019-03-19 08:08:10 +01002797 found = 1;
William Dauchyfbbcde02021-01-09 17:26:20 +01002798 fprintf(out, " %s", kw_list->kw[i].kw);
Willy Tarreau679bba12019-03-19 08:08:10 +01002799 }
2800 }
2801 if (!found)
2802 fprintf(out, " none\n");
2803}
William Lallemand4c5b4d52016-11-21 08:51:11 +01002804
2805/* This function dumps a complete stream state onto the stream interface's
2806 * read buffer. The stream has to be set in strm. It returns 0 if the output
2807 * buffer is full and it needs to be called again, otherwise non-zero. It is
2808 * designed to be called from stats_dump_strm_to_buffer() below.
2809 */
2810static int stats_dump_full_strm_to_buffer(struct stream_interface *si, struct stream *strm)
2811{
2812 struct appctx *appctx = __objt_appctx(si->end);
2813 struct tm tm;
2814 extern const char *monthname[12];
2815 char pn[INET6_ADDRSTRLEN];
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002816 struct conn_stream *cs;
William Lallemand4c5b4d52016-11-21 08:51:11 +01002817 struct connection *conn;
2818 struct appctx *tmpctx;
2819
2820 chunk_reset(&trash);
2821
2822 if (appctx->ctx.sess.section > 0 && appctx->ctx.sess.uid != strm->uniq_id) {
2823 /* stream changed, no need to go any further */
2824 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
Willy Tarreaue6e52362019-01-04 17:42:57 +01002825 if (ci_putchk(si_ic(si), &trash) == -1)
2826 goto full;
2827 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01002828 }
2829
2830 switch (appctx->ctx.sess.section) {
2831 case 0: /* main status of the stream */
2832 appctx->ctx.sess.uid = strm->uniq_id;
2833 appctx->ctx.sess.section = 1;
2834 /* fall through */
2835
2836 case 1:
2837 get_localtime(strm->logs.accept_date.tv_sec, &tm);
2838 chunk_appendf(&trash,
2839 "%p: [%02d/%s/%04d:%02d:%02d:%02d.%06d] id=%u proto=%s",
2840 strm,
2841 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
2842 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(strm->logs.accept_date.tv_usec),
2843 strm->uniq_id,
Willy Tarreaub7436612020-08-28 19:51:44 +02002844 strm_li(strm) ? strm_li(strm)->rx.proto->name : "?");
William Lallemand4c5b4d52016-11-21 08:51:11 +01002845
2846 conn = objt_conn(strm_orig(strm));
Willy Tarreau71e34c12019-07-17 15:07:06 +02002847 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002848 case AF_INET:
2849 case AF_INET6:
2850 chunk_appendf(&trash, " source=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002851 pn, get_host_port(conn->src));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002852 break;
2853 case AF_UNIX:
2854 chunk_appendf(&trash, " source=unix:%d\n", strm_li(strm)->luid);
2855 break;
2856 default:
2857 /* no more information to print right now */
2858 chunk_appendf(&trash, "\n");
2859 break;
2860 }
2861
2862 chunk_appendf(&trash,
Willy Tarreau907988a2021-02-24 11:29:51 +01002863 " flags=0x%x, conn_retries=%d, srv_conn=%p, pend_pos=%p waiting=%d epoch=%#x\n",
Willy Tarreauadf7a152019-01-07 10:10:07 +01002864 strm->flags, strm->si[1].conn_retries, strm->srv_conn, strm->pend_pos,
Willy Tarreau907988a2021-02-24 11:29:51 +01002865 LIST_ADDED(&strm->buffer_wait.list), strm->stream_epoch);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002866
2867 chunk_appendf(&trash,
2868 " frontend=%s (id=%u mode=%s), listener=%s (id=%u)",
2869 strm_fe(strm)->id, strm_fe(strm)->uuid, strm_fe(strm)->mode ? "http" : "tcp",
2870 strm_li(strm) ? strm_li(strm)->name ? strm_li(strm)->name : "?" : "?",
2871 strm_li(strm) ? strm_li(strm)->luid : 0);
2872
Willy Tarreau71e34c12019-07-17 15:07:06 +02002873 switch (conn && conn_get_dst(conn) ? addr_to_str(conn->dst, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002874 case AF_INET:
2875 case AF_INET6:
2876 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002877 pn, get_host_port(conn->dst));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002878 break;
2879 case AF_UNIX:
2880 chunk_appendf(&trash, " addr=unix:%d\n", strm_li(strm)->luid);
2881 break;
2882 default:
2883 /* no more information to print right now */
2884 chunk_appendf(&trash, "\n");
2885 break;
2886 }
2887
2888 if (strm->be->cap & PR_CAP_BE)
2889 chunk_appendf(&trash,
2890 " backend=%s (id=%u mode=%s)",
2891 strm->be->id,
2892 strm->be->uuid, strm->be->mode ? "http" : "tcp");
2893 else
2894 chunk_appendf(&trash, " backend=<NONE> (id=-1 mode=-)");
2895
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002896 cs = objt_cs(strm->si[1].end);
2897 conn = cs_conn(cs);
2898
Willy Tarreau71e34c12019-07-17 15:07:06 +02002899 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002900 case AF_INET:
2901 case AF_INET6:
2902 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002903 pn, get_host_port(conn->src));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002904 break;
2905 case AF_UNIX:
2906 chunk_appendf(&trash, " addr=unix\n");
2907 break;
2908 default:
2909 /* no more information to print right now */
2910 chunk_appendf(&trash, "\n");
2911 break;
2912 }
2913
2914 if (strm->be->cap & PR_CAP_BE)
2915 chunk_appendf(&trash,
2916 " server=%s (id=%u)",
2917 objt_server(strm->target) ? objt_server(strm->target)->id : "<none>",
2918 objt_server(strm->target) ? objt_server(strm->target)->puid : 0);
2919 else
2920 chunk_appendf(&trash, " server=<NONE> (id=-1)");
2921
Willy Tarreau71e34c12019-07-17 15:07:06 +02002922 switch (conn && conn_get_dst(conn) ? addr_to_str(conn->dst, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002923 case AF_INET:
2924 case AF_INET6:
2925 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002926 pn, get_host_port(conn->dst));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002927 break;
2928 case AF_UNIX:
2929 chunk_appendf(&trash, " addr=unix\n");
2930 break;
2931 default:
2932 /* no more information to print right now */
2933 chunk_appendf(&trash, "\n");
2934 break;
2935 }
2936
2937 chunk_appendf(&trash,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02002938 " task=%p (state=0x%02x nice=%d calls=%u rate=%u exp=%s tmask=0x%lx%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002939 strm->task,
2940 strm->task->state,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02002941 strm->task->nice, strm->task->calls, read_freq_ctr(&strm->call_rate),
William Lallemand4c5b4d52016-11-21 08:51:11 +01002942 strm->task->expire ?
2943 tick_is_expired(strm->task->expire, now_ms) ? "<PAST>" :
2944 human_time(TICKS_TO_MS(strm->task->expire - now_ms),
2945 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Fauletf0205062017-11-15 20:56:43 +01002946 strm->task->thread_mask,
William Lallemand4c5b4d52016-11-21 08:51:11 +01002947 task_in_rq(strm->task) ? ", running" : "");
2948
2949 chunk_appendf(&trash,
2950 " age=%s)\n",
2951 human_time(now.tv_sec - strm->logs.accept_date.tv_sec, 1));
2952
2953 if (strm->txn)
2954 chunk_appendf(&trash,
Christopher Fauletbcac7862019-07-17 10:46:50 +02002955 " 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 +01002956 strm->txn, strm->txn->flags, strm->txn->meth, strm->txn->status,
Willy Tarreau7778b592019-01-07 10:38:10 +01002957 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 +02002958 strm->txn->req.flags, strm->txn->rsp.flags);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002959
2960 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01002961 " 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 +01002962 &strm->si[0],
2963 si_state_str(strm->si[0].state),
2964 strm->si[0].flags,
2965 obj_type_name(strm->si[0].end),
2966 obj_base_ptr(strm->si[0].end),
2967 strm->si[0].exp ?
2968 tick_is_expired(strm->si[0].exp, now_ms) ? "<PAST>" :
2969 human_time(TICKS_TO_MS(strm->si[0].exp - now_ms),
2970 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01002971 strm->si[0].err_type, strm->si[0].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002972
2973 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01002974 " 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 +01002975 &strm->si[1],
2976 si_state_str(strm->si[1].state),
2977 strm->si[1].flags,
2978 obj_type_name(strm->si[1].end),
2979 obj_base_ptr(strm->si[1].end),
2980 strm->si[1].exp ?
2981 tick_is_expired(strm->si[1].exp, now_ms) ? "<PAST>" :
2982 human_time(TICKS_TO_MS(strm->si[1].exp - now_ms),
2983 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01002984 strm->si[1].err_type, strm->si[1].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002985
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002986 if ((cs = objt_cs(strm->si[0].end)) != NULL) {
2987 conn = cs->conn;
2988
William Lallemand4c5b4d52016-11-21 08:51:11 +01002989 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02002990 " co0=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002991 conn,
2992 conn_get_ctrl_name(conn),
2993 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02002994 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002995 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01002996 obj_type_name(conn->target),
2997 obj_base_ptr(conn->target));
2998
2999 chunk_appendf(&trash,
Willy Tarreau76913d32019-08-30 14:33:11 +02003000 " flags=0x%08x fd=%d fd.state=%02x updt=%d fd.tmask=0x%lx\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003001 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003002 conn->handle.fd,
3003 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01003004 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01003005 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01003006
3007 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003008 }
3009 else if ((tmpctx = objt_appctx(strm->si[0].end)) != NULL) {
3010 chunk_appendf(&trash,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003011 " 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 +01003012 tmpctx,
3013 tmpctx->st0,
3014 tmpctx->st1,
3015 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01003016 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02003017 tmpctx->thread_mask,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003018 tmpctx->t->nice, tmpctx->t->calls, read_freq_ctr(&tmpctx->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003019 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003020 }
3021
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003022 if ((cs = objt_cs(strm->si[1].end)) != NULL) {
3023 conn = cs->conn;
3024
William Lallemand4c5b4d52016-11-21 08:51:11 +01003025 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02003026 " co1=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003027 conn,
3028 conn_get_ctrl_name(conn),
3029 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02003030 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003031 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003032 obj_type_name(conn->target),
3033 obj_base_ptr(conn->target));
3034
3035 chunk_appendf(&trash,
Willy Tarreau76913d32019-08-30 14:33:11 +02003036 " flags=0x%08x fd=%d fd.state=%02x updt=%d fd.tmask=0x%lx\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003037 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003038 conn->handle.fd,
3039 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01003040 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01003041 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01003042
3043 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003044 }
3045 else if ((tmpctx = objt_appctx(strm->si[1].end)) != NULL) {
3046 chunk_appendf(&trash,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003047 " 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 +01003048 tmpctx,
3049 tmpctx->st0,
3050 tmpctx->st1,
3051 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01003052 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02003053 tmpctx->thread_mask,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003054 tmpctx->t->nice, tmpctx->t->calls, read_freq_ctr(&tmpctx->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003055 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003056 }
3057
3058 chunk_appendf(&trash,
3059 " req=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
3060 " an_exp=%s",
3061 &strm->req,
3062 strm->req.flags, strm->req.analysers,
3063 strm->req.pipe ? strm->req.pipe->data : 0,
3064 strm->req.to_forward, strm->req.total,
3065 strm->req.analyse_exp ?
3066 human_time(TICKS_TO_MS(strm->req.analyse_exp - now_ms),
3067 TICKS_TO_MS(1000)) : "<NEVER>");
3068
3069 chunk_appendf(&trash,
3070 " rex=%s",
3071 strm->req.rex ?
3072 human_time(TICKS_TO_MS(strm->req.rex - now_ms),
3073 TICKS_TO_MS(1000)) : "<NEVER>");
3074
3075 chunk_appendf(&trash,
3076 " wex=%s\n"
Christopher Fauletbcac7862019-07-17 10:46:50 +02003077 " buf=%p data=%p o=%u p=%u i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003078 strm->req.wex ?
3079 human_time(TICKS_TO_MS(strm->req.wex - now_ms),
3080 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003081 &strm->req.buf,
3082 b_orig(&strm->req.buf), (unsigned int)co_data(&strm->req),
Christopher Fauletbcac7862019-07-17 10:46:50 +02003083 (unsigned int)ci_head_ofs(&strm->req), (unsigned int)ci_data(&strm->req),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003084 (unsigned int)strm->req.buf.size);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003085
Christopher Fauletb9af8812019-01-04 14:30:44 +01003086 if (IS_HTX_STRM(strm)) {
3087 struct htx *htx = htxbuf(&strm->req.buf);
3088
3089 chunk_appendf(&trash,
Willy Tarreaub84e67f2019-01-07 10:01:34 +01003090 " htx=%p flags=0x%x size=%u data=%u used=%u wrap=%s extra=%llu\n",
Christopher Faulet192c6a22019-06-11 16:32:24 +02003091 htx, htx->flags, htx->size, htx->data, htx_nbblks(htx),
Christopher Faulet28f29c72019-04-30 17:55:45 +02003092 (htx->tail >= htx->head) ? "NO" : "YES",
Christopher Fauletb9af8812019-01-04 14:30:44 +01003093 (unsigned long long)htx->extra);
3094 }
3095
William Lallemand4c5b4d52016-11-21 08:51:11 +01003096 chunk_appendf(&trash,
3097 " res=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
3098 " an_exp=%s",
3099 &strm->res,
3100 strm->res.flags, strm->res.analysers,
3101 strm->res.pipe ? strm->res.pipe->data : 0,
3102 strm->res.to_forward, strm->res.total,
3103 strm->res.analyse_exp ?
3104 human_time(TICKS_TO_MS(strm->res.analyse_exp - now_ms),
3105 TICKS_TO_MS(1000)) : "<NEVER>");
3106
3107 chunk_appendf(&trash,
3108 " rex=%s",
3109 strm->res.rex ?
3110 human_time(TICKS_TO_MS(strm->res.rex - now_ms),
3111 TICKS_TO_MS(1000)) : "<NEVER>");
3112
3113 chunk_appendf(&trash,
3114 " wex=%s\n"
Christopher Fauletbcac7862019-07-17 10:46:50 +02003115 " buf=%p data=%p o=%u p=%u i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003116 strm->res.wex ?
3117 human_time(TICKS_TO_MS(strm->res.wex - now_ms),
3118 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003119 &strm->res.buf,
3120 b_orig(&strm->res.buf), (unsigned int)co_data(&strm->res),
Christopher Fauletbcac7862019-07-17 10:46:50 +02003121 (unsigned int)ci_head_ofs(&strm->res), (unsigned int)ci_data(&strm->res),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003122 (unsigned int)strm->res.buf.size);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003123
Christopher Fauletb9af8812019-01-04 14:30:44 +01003124 if (IS_HTX_STRM(strm)) {
3125 struct htx *htx = htxbuf(&strm->res.buf);
3126
3127 chunk_appendf(&trash,
3128 " htx=%p flags=0x%x size=%u data=%u used=%u wrap=%s extra=%llu\n",
Christopher Faulet192c6a22019-06-11 16:32:24 +02003129 htx, htx->flags, htx->size, htx->data, htx_nbblks(htx),
Christopher Faulet28f29c72019-04-30 17:55:45 +02003130 (htx->tail >= htx->head) ? "NO" : "YES",
Christopher Fauletb9af8812019-01-04 14:30:44 +01003131 (unsigned long long)htx->extra);
3132 }
3133
Willy Tarreaue6e52362019-01-04 17:42:57 +01003134 if (ci_putchk(si_ic(si), &trash) == -1)
3135 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003136
3137 /* use other states to dump the contents */
3138 }
3139 /* end of dump */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003140 done:
William Lallemand4c5b4d52016-11-21 08:51:11 +01003141 appctx->ctx.sess.uid = 0;
3142 appctx->ctx.sess.section = 0;
3143 return 1;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003144 full:
3145 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003146}
3147
3148
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003149static int cli_parse_show_sess(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemand4c5b4d52016-11-21 08:51:11 +01003150{
William Lallemand4c5b4d52016-11-21 08:51:11 +01003151 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
3152 return 1;
3153
3154 if (*args[2] && strcmp(args[2], "all") == 0)
3155 appctx->ctx.sess.target = (void *)-1;
3156 else if (*args[2])
3157 appctx->ctx.sess.target = (void *)strtoul(args[2], NULL, 0);
3158 else
3159 appctx->ctx.sess.target = NULL;
3160 appctx->ctx.sess.section = 0; /* start with stream status */
3161 appctx->ctx.sess.pos = 0;
Willy Tarreau67de95e2021-02-24 10:37:01 +01003162 appctx->ctx.sess.thr = 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003163
Willy Tarreau907988a2021-02-24 11:29:51 +01003164 /* let's set our own stream's epoch to the current one and increment
3165 * it so that we know which streams were already there before us.
3166 */
3167 si_strm(appctx->owner)->stream_epoch = _HA_ATOMIC_XADD(&stream_epoch, 1);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003168 return 0;
3169}
3170
3171/* This function dumps all streams' states onto the stream interface's
3172 * read buffer. It returns 0 if the output buffer is full and it needs
Willy Tarreaue6e52362019-01-04 17:42:57 +01003173 * to be called again, otherwise non-zero. It proceeds in an isolated
3174 * thread so there is no thread safety issue here.
William Lallemand4c5b4d52016-11-21 08:51:11 +01003175 */
3176static int cli_io_handler_dump_sess(struct appctx *appctx)
3177{
3178 struct stream_interface *si = appctx->owner;
3179 struct connection *conn;
3180
Willy Tarreaue6e52362019-01-04 17:42:57 +01003181 thread_isolate();
3182
William Lallemand4c5b4d52016-11-21 08:51:11 +01003183 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW))) {
3184 /* If we're forced to shut down, we might have to remove our
3185 * reference to the last stream being dumped.
3186 */
3187 if (appctx->st2 == STAT_ST_LIST) {
3188 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users)) {
3189 LIST_DEL(&appctx->ctx.sess.bref.users);
3190 LIST_INIT(&appctx->ctx.sess.bref.users);
3191 }
3192 }
Willy Tarreaue6e52362019-01-04 17:42:57 +01003193 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003194 }
3195
3196 chunk_reset(&trash);
3197
3198 switch (appctx->st2) {
3199 case STAT_ST_INIT:
3200 /* the function had not been called yet, let's prepare the
3201 * buffer for a response. We initialize the current stream
3202 * pointer to the first in the global list. When a target
3203 * stream is being destroyed, it is responsible for updating
3204 * this pointer. We know we have reached the end when this
3205 * pointer points back to the head of the streams list.
3206 */
3207 LIST_INIT(&appctx->ctx.sess.bref.users);
Willy Tarreau67de95e2021-02-24 10:37:01 +01003208 appctx->ctx.sess.bref.ref = ha_thread_info[appctx->ctx.sess.thr].streams.n;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003209 appctx->st2 = STAT_ST_LIST;
3210 /* fall through */
3211
3212 case STAT_ST_LIST:
3213 /* first, let's detach the back-ref from a possible previous stream */
3214 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users)) {
3215 LIST_DEL(&appctx->ctx.sess.bref.users);
3216 LIST_INIT(&appctx->ctx.sess.bref.users);
3217 }
3218
Willy Tarreau318ab222021-02-24 11:53:17 +01003219 /* and start from where we stopped */
Willy Tarreau67de95e2021-02-24 10:37:01 +01003220 while (1) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003221 char pn[INET6_ADDRSTRLEN];
3222 struct stream *curr_strm;
Willy Tarreau67de95e2021-02-24 10:37:01 +01003223 int done= 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003224
Willy Tarreau67de95e2021-02-24 10:37:01 +01003225 if (appctx->ctx.sess.bref.ref == &ha_thread_info[appctx->ctx.sess.thr].streams)
3226 done = 1;
3227 else {
3228 /* check if we've found a stream created after issuing the "show sess" */
3229 curr_strm = LIST_ELEM(appctx->ctx.sess.bref.ref, struct stream *, list);
3230 if ((int)(curr_strm->stream_epoch - si_strm(appctx->owner)->stream_epoch) > 0)
3231 done = 1;
3232 }
William Lallemand4c5b4d52016-11-21 08:51:11 +01003233
Willy Tarreau67de95e2021-02-24 10:37:01 +01003234 if (done) {
3235 appctx->ctx.sess.thr++;
3236 if (appctx->ctx.sess.thr >= global.nbthread)
3237 break;
3238 appctx->ctx.sess.bref.ref = ha_thread_info[appctx->ctx.sess.thr].streams.n;
3239 continue;
3240 }
Willy Tarreau318ab222021-02-24 11:53:17 +01003241
William Lallemand4c5b4d52016-11-21 08:51:11 +01003242 if (appctx->ctx.sess.target) {
3243 if (appctx->ctx.sess.target != (void *)-1 && appctx->ctx.sess.target != curr_strm)
3244 goto next_sess;
3245
3246 LIST_ADDQ(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
3247 /* call the proper dump() function and return if we're missing space */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003248 if (!stats_dump_full_strm_to_buffer(si, curr_strm))
3249 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003250
3251 /* stream dump complete */
3252 LIST_DEL(&appctx->ctx.sess.bref.users);
3253 LIST_INIT(&appctx->ctx.sess.bref.users);
3254 if (appctx->ctx.sess.target != (void *)-1) {
3255 appctx->ctx.sess.target = NULL;
3256 break;
3257 }
3258 else
3259 goto next_sess;
3260 }
3261
3262 chunk_appendf(&trash,
3263 "%p: proto=%s",
3264 curr_strm,
Willy Tarreaub7436612020-08-28 19:51:44 +02003265 strm_li(curr_strm) ? strm_li(curr_strm)->rx.proto->name : "?");
William Lallemand4c5b4d52016-11-21 08:51:11 +01003266
3267 conn = objt_conn(strm_orig(curr_strm));
Willy Tarreau71e34c12019-07-17 15:07:06 +02003268 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003269 case AF_INET:
3270 case AF_INET6:
3271 chunk_appendf(&trash,
3272 " src=%s:%d fe=%s be=%s srv=%s",
3273 pn,
Willy Tarreau71e34c12019-07-17 15:07:06 +02003274 get_host_port(conn->src),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003275 strm_fe(curr_strm)->id,
3276 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
3277 objt_server(curr_strm->target) ? objt_server(curr_strm->target)->id : "<none>"
3278 );
3279 break;
3280 case AF_UNIX:
3281 chunk_appendf(&trash,
3282 " src=unix:%d fe=%s be=%s srv=%s",
3283 strm_li(curr_strm)->luid,
3284 strm_fe(curr_strm)->id,
3285 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
3286 objt_server(curr_strm->target) ? objt_server(curr_strm->target)->id : "<none>"
3287 );
3288 break;
3289 }
3290
3291 chunk_appendf(&trash,
Willy Tarreau907988a2021-02-24 11:29:51 +01003292 " ts=%02x epoch=%#x age=%s calls=%u rate=%u cpu=%llu lat=%llu",
3293 curr_strm->task->state, curr_strm->stream_epoch,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003294 human_time(now.tv_sec - curr_strm->logs.tv_accept.tv_sec, 1),
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003295 curr_strm->task->calls, read_freq_ctr(&curr_strm->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003296 (unsigned long long)curr_strm->task->cpu_time, (unsigned long long)curr_strm->task->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003297
3298 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003299 " rq[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003300 curr_strm->req.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003301 (unsigned int)ci_data(&curr_strm->req),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003302 curr_strm->req.analysers,
3303 curr_strm->req.rex ?
3304 human_time(TICKS_TO_MS(curr_strm->req.rex - now_ms),
3305 TICKS_TO_MS(1000)) : "");
3306
3307 chunk_appendf(&trash,
3308 ",wx=%s",
3309 curr_strm->req.wex ?
3310 human_time(TICKS_TO_MS(curr_strm->req.wex - now_ms),
3311 TICKS_TO_MS(1000)) : "");
3312
3313 chunk_appendf(&trash,
3314 ",ax=%s]",
3315 curr_strm->req.analyse_exp ?
3316 human_time(TICKS_TO_MS(curr_strm->req.analyse_exp - now_ms),
3317 TICKS_TO_MS(1000)) : "");
3318
3319 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003320 " rp[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003321 curr_strm->res.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003322 (unsigned int)ci_data(&curr_strm->res),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003323 curr_strm->res.analysers,
3324 curr_strm->res.rex ?
3325 human_time(TICKS_TO_MS(curr_strm->res.rex - now_ms),
3326 TICKS_TO_MS(1000)) : "");
3327
3328 chunk_appendf(&trash,
3329 ",wx=%s",
3330 curr_strm->res.wex ?
3331 human_time(TICKS_TO_MS(curr_strm->res.wex - now_ms),
3332 TICKS_TO_MS(1000)) : "");
3333
3334 chunk_appendf(&trash,
3335 ",ax=%s]",
3336 curr_strm->res.analyse_exp ?
3337 human_time(TICKS_TO_MS(curr_strm->res.analyse_exp - now_ms),
3338 TICKS_TO_MS(1000)) : "");
3339
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003340 conn = cs_conn(objt_cs(curr_strm->si[0].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003341 chunk_appendf(&trash,
3342 " s0=[%d,%1xh,fd=%d,ex=%s]",
3343 curr_strm->si[0].state,
3344 curr_strm->si[0].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003345 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003346 curr_strm->si[0].exp ?
3347 human_time(TICKS_TO_MS(curr_strm->si[0].exp - now_ms),
3348 TICKS_TO_MS(1000)) : "");
3349
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003350 conn = cs_conn(objt_cs(curr_strm->si[1].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003351 chunk_appendf(&trash,
3352 " s1=[%d,%1xh,fd=%d,ex=%s]",
3353 curr_strm->si[1].state,
3354 curr_strm->si[1].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003355 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003356 curr_strm->si[1].exp ?
3357 human_time(TICKS_TO_MS(curr_strm->si[1].exp - now_ms),
3358 TICKS_TO_MS(1000)) : "");
3359
3360 chunk_appendf(&trash,
3361 " exp=%s",
3362 curr_strm->task->expire ?
3363 human_time(TICKS_TO_MS(curr_strm->task->expire - now_ms),
3364 TICKS_TO_MS(1000)) : "");
3365 if (task_in_rq(curr_strm->task))
3366 chunk_appendf(&trash, " run(nice=%d)", curr_strm->task->nice);
3367
3368 chunk_appendf(&trash, "\n");
3369
Willy Tarreau06d80a92017-10-19 14:32:15 +02003370 if (ci_putchk(si_ic(si), &trash) == -1) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003371 /* let's try again later from this stream. We add ourselves into
3372 * this stream's users so that it can remove us upon termination.
3373 */
William Lallemand4c5b4d52016-11-21 08:51:11 +01003374 LIST_ADDQ(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
Willy Tarreaue6e52362019-01-04 17:42:57 +01003375 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003376 }
3377
3378 next_sess:
3379 appctx->ctx.sess.bref.ref = curr_strm->list.n;
3380 }
3381
3382 if (appctx->ctx.sess.target && appctx->ctx.sess.target != (void *)-1) {
3383 /* specified stream not found */
3384 if (appctx->ctx.sess.section > 0)
3385 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
3386 else
3387 chunk_appendf(&trash, "Session not found.\n");
3388
Willy Tarreaue6e52362019-01-04 17:42:57 +01003389 if (ci_putchk(si_ic(si), &trash) == -1)
3390 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003391
3392 appctx->ctx.sess.target = NULL;
3393 appctx->ctx.sess.uid = 0;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003394 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003395 }
William Lallemand4c5b4d52016-11-21 08:51:11 +01003396 /* fall through */
3397
3398 default:
3399 appctx->st2 = STAT_ST_FIN;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003400 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003401 }
Willy Tarreaue6e52362019-01-04 17:42:57 +01003402 done:
3403 thread_release();
3404 return 1;
3405 full:
3406 thread_release();
3407 si_rx_room_blk(si);
3408 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003409}
3410
3411static void cli_release_show_sess(struct appctx *appctx)
3412{
Willy Tarreau67de95e2021-02-24 10:37:01 +01003413 if (appctx->st2 == STAT_ST_LIST && appctx->ctx.sess.thr < global.nbthread) {
3414 HA_SPIN_LOCK(STRMS_LOCK, &ha_thread_info[appctx->ctx.sess.thr].streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003415 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users))
3416 LIST_DEL(&appctx->ctx.sess.bref.users);
Willy Tarreau67de95e2021-02-24 10:37:01 +01003417 HA_SPIN_UNLOCK(STRMS_LOCK, &ha_thread_info[appctx->ctx.sess.thr].streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003418 }
3419}
3420
Willy Tarreau61b65212016-11-24 11:09:25 +01003421/* Parses the "shutdown session" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003422static int cli_parse_shutdown_session(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau61b65212016-11-24 11:09:25 +01003423{
3424 struct stream *strm, *ptr;
Willy Tarreau67de95e2021-02-24 10:37:01 +01003425 int thr;
Willy Tarreau61b65212016-11-24 11:09:25 +01003426
3427 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3428 return 1;
3429
Willy Tarreau9d008692019-08-09 11:21:01 +02003430 if (!*args[2])
3431 return cli_err(appctx, "Session pointer expected (use 'show sess').\n");
Willy Tarreau61b65212016-11-24 11:09:25 +01003432
3433 ptr = (void *)strtoul(args[2], NULL, 0);
Willy Tarreau67de95e2021-02-24 10:37:01 +01003434 strm = NULL;
Willy Tarreau61b65212016-11-24 11:09:25 +01003435
Willy Tarreau9ca4d7f2021-02-24 11:11:06 +01003436 thread_isolate();
3437
Willy Tarreau61b65212016-11-24 11:09:25 +01003438 /* first, look for the requested stream in the stream table */
Willy Tarreau67de95e2021-02-24 10:37:01 +01003439 for (thr = 0; !strm && thr < global.nbthread; thr++) {
3440 list_for_each_entry(strm, &ha_thread_info[thr].streams, list) {
3441 if (strm == ptr) {
3442 stream_shutdown(strm, SF_ERR_KILLED);
3443 break;
3444 }
Willy Tarreau9ca4d7f2021-02-24 11:11:06 +01003445 }
Willy Tarreau61b65212016-11-24 11:09:25 +01003446 }
3447
Willy Tarreau9ca4d7f2021-02-24 11:11:06 +01003448 thread_release();
3449
Willy Tarreau61b65212016-11-24 11:09:25 +01003450 /* do we have the stream ? */
Willy Tarreau67de95e2021-02-24 10:37:01 +01003451 if (!strm)
Willy Tarreau9d008692019-08-09 11:21:01 +02003452 return cli_err(appctx, "No such session (use 'show sess').\n");
Willy Tarreau61b65212016-11-24 11:09:25 +01003453
Willy Tarreau61b65212016-11-24 11:09:25 +01003454 return 1;
3455}
3456
Willy Tarreau4e46b622016-11-23 16:50:48 +01003457/* Parses the "shutdown session server" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003458static int cli_parse_shutdown_sessions_server(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau4e46b622016-11-23 16:50:48 +01003459{
3460 struct server *sv;
Willy Tarreau4e46b622016-11-23 16:50:48 +01003461
3462 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3463 return 1;
3464
3465 sv = cli_find_server(appctx, args[3]);
3466 if (!sv)
3467 return 1;
3468
3469 /* kill all the stream that are on this server */
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003470 HA_SPIN_LOCK(SERVER_LOCK, &sv->lock);
Willy Tarreaud9e26a72019-11-14 16:37:16 +01003471 srv_shutdown_streams(sv, SF_ERR_KILLED);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003472 HA_SPIN_UNLOCK(SERVER_LOCK, &sv->lock);
Willy Tarreau4e46b622016-11-23 16:50:48 +01003473 return 1;
3474}
3475
William Lallemand4c5b4d52016-11-21 08:51:11 +01003476/* register cli keywords */
3477static struct cli_kw_list cli_kws = {{ },{
3478 { { "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 +01003479 { { "shutdown", "session", NULL }, "shutdown session : kill a specific session", cli_parse_shutdown_session, NULL, NULL },
Willy Tarreau4e46b622016-11-23 16:50:48 +01003480 { { "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 +01003481 {{},}
3482}};
3483
Willy Tarreau0108d902018-11-25 19:14:37 +01003484INITCALL1(STG_REGISTER, cli_register_kw, &cli_kws);
3485
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003486/* main configuration keyword registration. */
3487static struct action_kw_list stream_tcp_keywords = { ILH, {
3488 { "use-service", stream_parse_use_service },
3489 { /* END */ }
3490}};
3491
Willy Tarreau0108d902018-11-25 19:14:37 +01003492INITCALL1(STG_REGISTER, tcp_req_cont_keywords_register, &stream_tcp_keywords);
3493
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003494static struct action_kw_list stream_http_keywords = { ILH, {
3495 { "use-service", stream_parse_use_service },
3496 { /* END */ }
3497}};
3498
Willy Tarreau0108d902018-11-25 19:14:37 +01003499INITCALL1(STG_REGISTER, http_req_keywords_register, &stream_http_keywords);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003500
Willy Tarreaubaaee002006-06-26 02:48:02 +02003501/*
3502 * Local variables:
3503 * c-indent-level: 8
3504 * c-basic-offset: 8
3505 * End:
3506 */