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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>
Amaury Denoyelle12bada52020-12-10 13:43:57 +010051#include <haproxy/sample.h>
Willy Tarreau48d25b32020-06-04 18:58:52 +020052#include <haproxy/session.h>
Willy Tarreau2eec9b52020-06-04 19:58:55 +020053#include <haproxy/stats-t.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020054#include <haproxy/stick_table.h>
Willy Tarreaudfd3de82020-06-04 23:46:14 +020055#include <haproxy/stream.h>
Willy Tarreau5e539c92020-06-04 20:45:39 +020056#include <haproxy/stream_interface.h>
Willy Tarreaucea0e1b2020-06-04 17:25:40 +020057#include <haproxy/task.h>
Willy Tarreau8b550af2020-06-04 17:42:48 +020058#include <haproxy/tcp_rules.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020059#include <haproxy/thread.h>
Willy Tarreaudfd3de82020-06-04 23:46:14 +020060#include <haproxy/trace.h>
Willy Tarreaua1718922020-06-04 16:25:31 +020061#include <haproxy/vars.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020062
Willy Tarreaubaaee002006-06-26 02:48:02 +020063
Willy Tarreau8ceae722018-11-26 11:58:30 +010064DECLARE_POOL(pool_head_stream, "stream", sizeof(struct stream));
Tim Duesterhus127a74d2020-02-28 15:13:33 +010065DECLARE_POOL(pool_head_uniqueid, "uniqueid", UNIQUEID_LEN);
Willy Tarreau8ceae722018-11-26 11:58:30 +010066
Willy Tarreaub6b3df32018-11-26 16:31:20 +010067struct list streams = LIST_HEAD_INIT(streams);
Willy Tarreau86abe442018-11-25 20:12:18 +010068__decl_spinlock(streams_lock);
Willy Tarreaubaaee002006-06-26 02:48:02 +020069
Thierry FOURNIER5a363e72015-09-27 19:29:33 +020070/* List of all use-service keywords. */
71static struct list service_keywords = LIST_HEAD_INIT(service_keywords);
72
Willy Tarreau5790eb02017-08-28 17:18:36 +020073
Christopher Fauleteea8fc72019-11-05 16:18:10 +010074/* trace source and events */
75static void strm_trace(enum trace_level level, uint64_t mask,
76 const struct trace_source *src,
77 const struct ist where, const struct ist func,
78 const void *a1, const void *a2, const void *a3, const void *a4);
79
80/* The event representation is split like this :
81 * strm - stream
82 * si - stream interface
83 * http - http analyzis
84 * tcp - tcp analyzis
85 *
86 * STRM_EV_* macros are defined in <proto/stream.h>
87 */
88static const struct trace_event strm_trace_events[] = {
89 { .mask = STRM_EV_STRM_NEW, .name = "strm_new", .desc = "new stream" },
90 { .mask = STRM_EV_STRM_FREE, .name = "strm_free", .desc = "release stream" },
91 { .mask = STRM_EV_STRM_ERR, .name = "strm_err", .desc = "error during stream processing" },
92 { .mask = STRM_EV_STRM_ANA, .name = "strm_ana", .desc = "stream analyzers" },
93 { .mask = STRM_EV_STRM_PROC, .name = "strm_proc", .desc = "stream processing" },
94
95 { .mask = STRM_EV_SI_ST, .name = "si_state", .desc = "processing stream-interface states" },
96
97 { .mask = STRM_EV_HTTP_ANA, .name = "http_ana", .desc = "HTTP analyzers" },
98 { .mask = STRM_EV_HTTP_ERR, .name = "http_err", .desc = "error during HTTP analyzis" },
99
100 { .mask = STRM_EV_TCP_ANA, .name = "tcp_ana", .desc = "TCP analyzers" },
101 { .mask = STRM_EV_TCP_ERR, .name = "tcp_err", .desc = "error during TCP analyzis" },
102 {}
103};
104
105static const struct name_desc strm_trace_lockon_args[4] = {
106 /* arg1 */ { /* already used by the stream */ },
107 /* arg2 */ { },
108 /* arg3 */ { },
109 /* arg4 */ { }
110};
111
112static const struct name_desc strm_trace_decoding[] = {
113#define STRM_VERB_CLEAN 1
114 { .name="clean", .desc="only user-friendly stuff, generally suitable for level \"user\"" },
115#define STRM_VERB_MINIMAL 2
116 { .name="minimal", .desc="report info on stream and stream-interfaces" },
117#define STRM_VERB_SIMPLE 3
118 { .name="simple", .desc="add info on request and response channels" },
119#define STRM_VERB_ADVANCED 4
120 { .name="advanced", .desc="add info on channel's buffer for data and developer levels only" },
121#define STRM_VERB_COMPLETE 5
122 { .name="complete", .desc="add info on channel's buffer" },
123 { /* end */ }
124};
125
126struct trace_source trace_strm = {
127 .name = IST("stream"),
128 .desc = "Applicative stream",
129 .arg_def = TRC_ARG1_STRM, // TRACE()'s first argument is always a stream
130 .default_cb = strm_trace,
131 .known_events = strm_trace_events,
132 .lockon_args = strm_trace_lockon_args,
133 .decoding = strm_trace_decoding,
134 .report_events = ~0, // report everything by default
135};
136
137#define TRACE_SOURCE &trace_strm
138INITCALL1(STG_REGISTER, trace_register_source, TRACE_SOURCE);
139
140/* the stream traces always expect that arg1, if non-null, is of a stream (from
141 * which we can derive everything), that arg2, if non-null, is an http
142 * transaction, that arg3, if non-null, is an http message.
143 */
144static void strm_trace(enum trace_level level, uint64_t mask, const struct trace_source *src,
145 const struct ist where, const struct ist func,
146 const void *a1, const void *a2, const void *a3, const void *a4)
147{
148 const struct stream *s = a1;
149 const struct http_txn *txn = a2;
150 const struct http_msg *msg = a3;
151 struct task *task;
152 const struct stream_interface *si_f, *si_b;
153 const struct channel *req, *res;
154 struct htx *htx;
155
156 if (!s || src->verbosity < STRM_VERB_CLEAN)
157 return;
158
159 task = s->task;
160 si_f = &s->si[0];
161 si_b = &s->si[1];
162 req = &s->req;
163 res = &s->res;
164 htx = (msg ? htxbuf(&msg->chn->buf) : NULL);
165
166 /* General info about the stream (htx/tcp, id...) */
167 chunk_appendf(&trace_buf, " : [%u,%s]",
168 s->uniq_id, ((s->flags & SF_HTX) ? "HTX" : "TCP"));
Tim Duesterhusa17e6622020-03-05 20:19:02 +0100169 if (isttest(s->unique_id)) {
170 chunk_appendf(&trace_buf, " id=");
171 b_putist(&trace_buf, s->unique_id);
172 }
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100173
174 /* Front and back stream-int state */
175 chunk_appendf(&trace_buf, " SI=(%s,%s)",
176 si_state_str(si_f->state), si_state_str(si_b->state));
177
178 /* If txn is defined, HTTP req/rep states */
179 if (txn)
180 chunk_appendf(&trace_buf, " HTTP=(%s,%s)",
181 h1_msg_state_str(txn->req.msg_state), h1_msg_state_str(txn->rsp.msg_state));
182 if (msg)
183 chunk_appendf(&trace_buf, " %s", ((msg->chn->flags & CF_ISRESP) ? "RESPONSE" : "REQUEST"));
184
185 if (src->verbosity == STRM_VERB_CLEAN)
186 return;
187
188 /* If msg defined, display status-line if possible (verbosity > MINIMAL) */
189 if (src->verbosity > STRM_VERB_MINIMAL && htx && htx_nbblks(htx)) {
190 const struct htx_blk *blk = htx_get_head_blk(htx);
191 const struct htx_sl *sl = htx_get_blk_ptr(htx, blk);
192 enum htx_blk_type type = htx_get_blk_type(blk);
193
194 if (type == HTX_BLK_REQ_SL || type == HTX_BLK_RES_SL)
195 chunk_appendf(&trace_buf, " - \"%.*s %.*s %.*s\"",
196 HTX_SL_P1_LEN(sl), HTX_SL_P1_PTR(sl),
197 HTX_SL_P2_LEN(sl), HTX_SL_P2_PTR(sl),
198 HTX_SL_P3_LEN(sl), HTX_SL_P3_PTR(sl));
199 }
200
201
202 /* If txn defined info about HTTP msgs, otherwise info about SI. */
203 if (txn) {
204 chunk_appendf(&trace_buf, " - t=%p s=(%p,0x%08x) txn.flags=0x%08x, http.flags=(0x%08x,0x%08x) status=%d",
205 task, s, s->flags, txn->flags, txn->req.flags, txn->rsp.flags, txn->status);
206 }
207 else {
208 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",
209 task, s, s->flags, si_f, si_f->flags, si_f->err_type,
210 si_b, si_b->flags, si_b->err_type, si_b->conn_retries);
211 }
212
213 if (src->verbosity == STRM_VERB_MINIMAL)
214 return;
215
216
217 /* If txn defined, don't display all channel info */
218 if (src->verbosity == STRM_VERB_SIMPLE || txn) {
219 chunk_appendf(&trace_buf, " req=(%p .fl=0x%08x .exp(r,w,a)=(%u,%u,%u))",
220 req, req->flags, req->rex, req->wex, req->analyse_exp);
221 chunk_appendf(&trace_buf, " res=(%p .fl=0x%08x .exp(r,w,a)=(%u,%u,%u))",
222 res, res->flags, res->rex, res->wex, res->analyse_exp);
223 }
224 else {
225 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)",
226 req, req->flags, req->analysers, req->rex, req->wex, req->analyse_exp,
Willy Tarreaue18f53e2019-11-27 15:41:31 +0100227 (long)req->output, req->total, req->to_forward);
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100228 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)",
229 res, res->flags, res->analysers, res->rex, res->wex, res->analyse_exp,
Willy Tarreaue18f53e2019-11-27 15:41:31 +0100230 (long)res->output, res->total, res->to_forward);
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100231 }
232
233 if (src->verbosity == STRM_VERB_SIMPLE ||
234 (src->verbosity == STRM_VERB_ADVANCED && src->level < TRACE_LEVEL_DATA))
235 return;
236
237 /* channels' buffer info */
238 if (s->flags & SF_HTX) {
239 struct htx *rqhtx = htxbuf(&req->buf);
240 struct htx *rphtx = htxbuf(&res->buf);
241
242 chunk_appendf(&trace_buf, " htx=(%u/%u#%u, %u/%u#%u)",
243 rqhtx->data, rqhtx->size, htx_nbblks(rqhtx),
244 rphtx->data, rphtx->size, htx_nbblks(rphtx));
245 }
246 else {
247 chunk_appendf(&trace_buf, " buf=(%u@%p+%u/%u, %u@%p+%u/%u)",
248 (unsigned int)b_data(&req->buf), b_orig(&req->buf),
249 (unsigned int)b_head_ofs(&req->buf), (unsigned int)b_size(&req->buf),
250 (unsigned int)b_data(&req->buf), b_orig(&req->buf),
251 (unsigned int)b_head_ofs(&req->buf), (unsigned int)b_size(&req->buf));
252 }
253
254 /* If msg defined, display htx info if defined (level > USER) */
255 if (src->level > TRACE_LEVEL_USER && htx && htx_nbblks(htx)) {
256 int full = 0;
257
258 /* Full htx info (level > STATE && verbosity > SIMPLE) */
259 if (src->level > TRACE_LEVEL_STATE) {
260 if (src->verbosity == STRM_VERB_COMPLETE)
261 full = 1;
262 }
263
264 chunk_memcat(&trace_buf, "\n\t", 2);
265 htx_dump(&trace_buf, htx, full);
266 }
267}
268
Willy Tarreau5790eb02017-08-28 17:18:36 +0200269/* Create a new stream for connection <conn>. Return < 0 on error. This is only
270 * valid right after the handshake, before the connection's data layer is
Christopher Faulet16df1782020-12-04 16:47:41 +0100271 * initialized, because it relies on the session to be in conn->owner. On
272 * success, <input> buffer is transferred to the stream and thus points to
273 * BUF_NULL. On error, it is unchanged and it is the caller responsibility to
274 * release it.
Willy Tarreau5790eb02017-08-28 17:18:36 +0200275 */
Christopher Faulet26256f82020-09-14 11:40:13 +0200276int stream_create_from_cs(struct conn_stream *cs, struct buffer *input)
Willy Tarreau5790eb02017-08-28 17:18:36 +0200277{
278 struct stream *strm;
279
Christopher Faulet26256f82020-09-14 11:40:13 +0200280 strm = stream_new(cs->conn->owner, &cs->obj_type, input);
Willy Tarreau5790eb02017-08-28 17:18:36 +0200281 if (strm == NULL)
282 return -1;
283
284 task_wakeup(strm->task, TASK_WOKEN_INIT);
285 return 0;
286}
287
Willy Tarreaub882dd82018-11-06 15:50:21 +0100288/* Callback used to wake up a stream when an input buffer is available. The
289 * stream <s>'s stream interfaces are checked for a failed buffer allocation
Willy Tarreaud0f5bbc2018-11-14 11:10:26 +0100290 * as indicated by the presence of the SI_FL_RXBLK_ROOM flag and the lack of a
Willy Tarreaub882dd82018-11-06 15:50:21 +0100291 * buffer, and and input buffer is assigned there (at most one). The function
292 * returns 1 and wakes the stream up if a buffer was taken, otherwise zero.
293 * It's designed to be called from __offer_buffer().
294 */
295int stream_buf_available(void *arg)
296{
297 struct stream *s = arg;
298
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100299 if (!s->req.buf.size && !s->req.pipe && (s->si[0].flags & SI_FL_RXBLK_BUFF) &&
Willy Tarreaub882dd82018-11-06 15:50:21 +0100300 b_alloc_margin(&s->req.buf, global.tune.reserved_bufs))
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100301 si_rx_buff_rdy(&s->si[0]);
302 else if (!s->res.buf.size && !s->res.pipe && (s->si[1].flags & SI_FL_RXBLK_BUFF) &&
Willy Tarreaub882dd82018-11-06 15:50:21 +0100303 b_alloc_margin(&s->res.buf, 0))
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100304 si_rx_buff_rdy(&s->si[1]);
Willy Tarreaub882dd82018-11-06 15:50:21 +0100305 else
306 return 0;
307
308 task_wakeup(s->task, TASK_WOKEN_RES);
309 return 1;
310
311}
312
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200313/* This function is called from the session handler which detects the end of
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200314 * handshake, in order to complete initialization of a valid stream. It must be
Joseph Herlant4cc8d0d2018-11-15 09:14:14 -0800315 * called with a completely initialized session. It returns the pointer to
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200316 * the newly created stream, or NULL in case of fatal error. The client-facing
Willy Tarreau87787ac2017-08-28 16:22:54 +0200317 * end point is assigned to <origin>, which must be valid. The stream's task
318 * is configured with a nice value inherited from the listener's nice if any.
319 * The task's context is set to the new stream, and its function is set to
Christopher Faulet16df1782020-12-04 16:47:41 +0100320 * process_stream(). Target and analysers are null. <input> is used as input
321 * buffer for the request channel and may contain data. On success, it is
322 * transfer to the stream and <input> is set to BUF_NULL. On error, <input>
323 * buffer is unchanged and it is the caller responsibility to release it.
Willy Tarreau2542b532012-08-31 16:01:23 +0200324 */
Christopher Faulet26256f82020-09-14 11:40:13 +0200325struct stream *stream_new(struct session *sess, enum obj_type *origin, struct buffer *input)
Willy Tarreau2542b532012-08-31 16:01:23 +0200326{
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200327 struct stream *s;
Willy Tarreau87787ac2017-08-28 16:22:54 +0200328 struct task *t;
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200329 struct conn_stream *cs = objt_cs(origin);
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200330 struct appctx *appctx = objt_appctx(origin);
Willy Tarreau2542b532012-08-31 16:01:23 +0200331
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100332 DBG_TRACE_ENTER(STRM_EV_STRM_NEW);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100333 if (unlikely((s = pool_alloc(pool_head_stream)) == NULL))
Willy Tarreau87787ac2017-08-28 16:22:54 +0200334 goto out_fail_alloc;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200335
336 /* minimum stream initialization required for an embryonic stream is
337 * fairly low. We need very little to execute L4 ACLs, then we need a
338 * task to make the client-side connection live on its own.
339 * - flags
340 * - stick-entry tracking
341 */
342 s->flags = 0;
Willy Tarreaufb9f5842015-04-05 18:19:23 +0200343 s->logs.logwait = sess->fe->to_log;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200344 s->logs.level = 0;
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200345 tv_zero(&s->logs.tv_request);
346 s->logs.t_queue = -1;
347 s->logs.t_connect = -1;
348 s->logs.t_data = -1;
349 s->logs.t_close = 0;
350 s->logs.bytes_in = s->logs.bytes_out = 0;
Patrick Hemmerffe5e8c2018-05-11 12:52:31 -0400351 s->logs.prx_queue_pos = 0; /* we get the number of pending conns before us */
352 s->logs.srv_queue_pos = 0; /* we will get this number soon */
Baptiste Assmann333939c2019-01-21 08:34:50 +0100353 s->obj_type = OBJ_TYPE_STREAM;
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200354
Christopher Faulet15e525f2020-09-30 14:03:54 +0200355 s->logs.accept_date = sess->accept_date;
356 s->logs.tv_accept = sess->tv_accept;
357 s->logs.t_handshake = sess->t_handshake;
Christopher Faulet7a6c5132020-09-30 13:49:56 +0200358 s->logs.t_idle = sess->t_idle;
Christopher Fauletb3484d62018-11-29 15:19:05 +0100359
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200360 /* default logging function */
361 s->do_log = strm_log;
362
363 /* default error reporting function, may be changed by analysers */
364 s->srv_error = default_srv_error;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200365
366 /* Initialise the current rule list pointer to NULL. We are sure that
367 * any rulelist match the NULL pointer.
368 */
369 s->current_rule_list = NULL;
Remi Gacogne7fb9de22015-07-22 17:10:58 +0200370 s->current_rule = NULL;
Christopher Faulet2747fbb2020-07-28 11:56:13 +0200371 s->rules_exp = TICK_ETERNITY;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200372
Willy Tarreaua68f7622015-09-21 17:48:24 +0200373 /* Copy SC counters for the stream. We don't touch refcounts because
374 * any reference we have is inherited from the session. Since the stream
375 * doesn't exist without the session, the session's existence guarantees
376 * we don't lose the entry. During the store operation, the stream won't
377 * touch these ones.
Thierry FOURNIER827752e2015-08-18 11:34:18 +0200378 */
Thierry FOURNIERc8fdb982015-08-16 12:03:39 +0200379 memcpy(s->stkctr, sess->stkctr, sizeof(s->stkctr));
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200380
381 s->sess = sess;
382 s->si[0].flags = SI_FL_NONE;
383 s->si[1].flags = SI_FL_ISBACK;
384
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100385 s->uniq_id = _HA_ATOMIC_XADD(&global.req_count, 1);
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200386
Willy Tarreau87b09662015-04-03 00:22:06 +0200387 /* OK, we're keeping the stream, so let's properly initialize the stream */
Willy Tarreau2542b532012-08-31 16:01:23 +0200388 LIST_INIT(&s->back_refs);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100389
Willy Tarreau21046592020-02-26 10:39:36 +0100390 MT_LIST_INIT(&s->buffer_wait.list);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100391 s->buffer_wait.target = s;
Willy Tarreaub882dd82018-11-06 15:50:21 +0100392 s->buffer_wait.wakeup_cb = stream_buf_available;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200393
Willy Tarreau2e9c1d22019-04-24 08:28:31 +0200394 s->call_rate.curr_sec = s->call_rate.curr_ctr = s->call_rate.prev_ctr = 0;
William Lallemandcf62f7e2018-10-26 14:47:40 +0200395 s->pcli_next_pid = 0;
William Lallemandebf61802018-12-11 16:10:57 +0100396 s->pcli_flags = 0;
Tim Duesterhusa17e6622020-03-05 20:19:02 +0100397 s->unique_id = IST_NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200398
Emeric Brunc60def82017-09-27 14:59:38 +0200399 if ((t = task_new(tid_bit)) == NULL)
Willy Tarreau87787ac2017-08-28 16:22:54 +0200400 goto out_fail_alloc;
401
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200402 s->task = t;
Christopher Faulet9d810ca2016-12-08 22:33:52 +0100403 s->pending_events = 0;
Willy Tarreaud1769b82015-04-06 00:25:48 +0200404 t->process = process_stream;
Willy Tarreau2542b532012-08-31 16:01:23 +0200405 t->context = s;
406 t->expire = TICK_ETERNITY;
Willy Tarreau87787ac2017-08-28 16:22:54 +0200407 if (sess->listener)
408 t->nice = sess->listener->nice;
Willy Tarreau2542b532012-08-31 16:01:23 +0200409
Willy Tarreau87b09662015-04-03 00:22:06 +0200410 /* Note: initially, the stream's backend points to the frontend.
Willy Tarreau2542b532012-08-31 16:01:23 +0200411 * This changes later when switching rules are executed or
412 * when the default backend is assigned.
413 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200414 s->be = sess->fe;
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200415 s->req_cap = NULL;
416 s->res_cap = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200417
Willy Tarreauebcd4842015-06-19 11:59:02 +0200418 /* Initialise all the variables contexts even if not used.
419 * This permits to prune these contexts without errors.
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200420 */
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200421 vars_init(&s->vars_txn, SCOPE_TXN);
422 vars_init(&s->vars_reqres, SCOPE_REQ);
423
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200424 /* this part should be common with other protocols */
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200425 if (si_reset(&s->si[0]) < 0)
426 goto out_fail_alloc;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200427 si_set_state(&s->si[0], SI_ST_EST);
Hongbo Longe39683c2017-03-10 18:41:51 +0100428 s->si[0].hcto = sess->fe->timeout.clientfin;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200429
Christopher Faulet0e160ff2019-04-03 10:01:07 +0200430 if (cs && cs->conn->mux) {
431 if (cs->conn->mux->flags & MX_FL_CLEAN_ABRT)
432 s->si[0].flags |= SI_FL_CLEAN_ABRT;
433 if (cs->conn->mux->flags & MX_FL_HTX)
434 s->flags |= SF_HTX;
435 }
Christopher Faulet3494c632019-07-15 14:58:26 +0200436 /* Set SF_HTX flag for HTTP frontends. */
437 if (sess->fe->mode == PR_MODE_HTTP)
Christopher Faulet0e160ff2019-04-03 10:01:07 +0200438 s->flags |= SF_HTX;
Willy Tarreau984fca92017-12-20 16:31:43 +0100439
Willy Tarreau1f52bb22015-04-04 14:28:46 +0200440 /* attach the incoming connection to the stream interface now. */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200441 if (cs)
442 si_attach_cs(&s->si[0], cs);
Willy Tarreau470280e2015-04-05 01:33:13 +0200443 else if (appctx)
444 si_attach_appctx(&s->si[0], appctx);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200445
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200446 if (likely(sess->fe->options2 & PR_O2_INDEPSTR))
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200447 s->si[0].flags |= SI_FL_INDEP_STR;
448
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200449 /* pre-initialize the other side's stream interface to an INIT state. The
450 * callbacks will be initialized before attempting to connect.
451 */
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200452 if (si_reset(&s->si[1]) < 0)
453 goto out_fail_alloc_si1;
Hongbo Longe39683c2017-03-10 18:41:51 +0100454 s->si[1].hcto = TICK_ETERNITY;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200455
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200456 if (likely(sess->fe->options2 & PR_O2_INDEPSTR))
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200457 s->si[1].flags |= SI_FL_INDEP_STR;
458
Willy Tarreau87b09662015-04-03 00:22:06 +0200459 stream_init_srv_conn(s);
Willy Tarreau9b82d942016-12-05 00:26:31 +0100460 s->target = sess->listener ? sess->listener->default_target : NULL;
Willy Tarreau90420602019-07-18 15:09:57 +0200461 s->target_addr = NULL;
Willy Tarreau9b82d942016-12-05 00:26:31 +0100462
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200463 s->pend_pos = NULL;
Patrick Hemmer268a7072018-05-11 12:52:31 -0400464 s->priority_class = 0;
465 s->priority_offset = 0;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200466
467 /* init store persistence */
468 s->store_count = 0;
469
Christopher Faulet16df1782020-12-04 16:47:41 +0100470 channel_init(&s->req);
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100471 s->req.flags |= CF_READ_ATTACHED; /* the producer is already connected */
Willy Tarreau9b82d942016-12-05 00:26:31 +0100472 s->req.analysers = sess->listener ? sess->listener->analysers : 0;
Willy Tarreaue223e3b2017-11-18 15:39:10 +0100473
474 if (!sess->fe->fe_req_ana) {
475 channel_auto_connect(&s->req); /* don't wait to establish connection */
476 channel_auto_close(&s->req); /* let the producer forward close requests */
477 }
Willy Tarreauc8815ef2015-04-05 18:15:59 +0200478
479 s->req.rto = sess->fe->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100480 s->req.wto = TICK_ETERNITY;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100481 s->req.rex = TICK_ETERNITY;
482 s->req.wex = TICK_ETERNITY;
483 s->req.analyse_exp = TICK_ETERNITY;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200484
Christopher Faulet16df1782020-12-04 16:47:41 +0100485 channel_init(&s->res);
Willy Tarreauef573c02014-11-28 14:17:09 +0100486 s->res.flags |= CF_ISRESP;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100487 s->res.analysers = 0;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200488
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200489 if (sess->fe->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100490 s->req.flags |= CF_NEVER_WAIT;
491 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200492 }
493
Willy Tarreauc8815ef2015-04-05 18:15:59 +0200494 s->res.wto = sess->fe->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100495 s->res.rto = TICK_ETERNITY;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100496 s->res.rex = TICK_ETERNITY;
497 s->res.wex = TICK_ETERNITY;
498 s->res.analyse_exp = TICK_ETERNITY;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200499
Willy Tarreaueee5b512015-04-03 23:46:31 +0200500 s->txn = NULL;
Thierry FOURNIER2c8b54e2016-12-17 12:45:32 +0100501 s->hlua = NULL;
Thierry FOURNIER65f34c62015-02-16 20:11:43 +0100502
Frédéric Lécaillebed883a2019-04-23 17:26:33 +0200503 s->dns_ctx.dns_requester = NULL;
504 s->dns_ctx.hostname_dn = NULL;
505 s->dns_ctx.hostname_dn_len = 0;
506 s->dns_ctx.parent = NULL;
507
Amaury Denoyellefb504432020-12-10 13:43:53 +0100508 s->tunnel_timeout = TICK_ETERNITY;
509
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100510 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200511 LIST_ADDQ(&streams, &s->list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100512 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200513
Christopher Faulet92d36382015-11-05 13:35:03 +0100514 if (flt_stream_init(s) < 0 || flt_stream_start(s) < 0)
Christopher Fauletd7c91962015-04-30 11:48:27 +0200515 goto out_fail_accept;
516
Olivier Houcharda254a372019-04-05 15:30:12 +0200517 s->si[1].l7_buffer = BUF_NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200518 /* finish initialization of the accepted file descriptor */
Olivier Houchard53216e72018-10-10 15:46:36 +0200519 if (appctx)
Willy Tarreau0cd3bd62018-11-06 18:46:37 +0100520 si_want_get(&s->si[0]);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200521
Willy Tarreaufb9f5842015-04-05 18:19:23 +0200522 if (sess->fe->accept && sess->fe->accept(s) < 0)
Willy Tarreauc5a7ff42015-04-05 11:52:08 +0200523 goto out_fail_accept;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200524
Christopher Faulet16df1782020-12-04 16:47:41 +0100525 if (!b_is_null(input)) {
526 /* Xfer the input buffer to the request channel. <input> will
527 * than point to BUF_NULL. From this point, it is the stream
528 * responsibility to release it.
529 */
530 s->req.buf = *input;
531 *input = BUF_NULL;
Christopher Fauletc43fca02020-12-04 17:22:49 +0100532 s->req.total = (IS_HTX_STRM(s) ? htxbuf(&s->req.buf)->data : b_data(&s->req.buf));
Christopher Faulet16df1782020-12-04 16:47:41 +0100533 s->req.flags |= (s->req.total ? CF_READ_PARTIAL : 0);
534 }
535
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200536 /* it is important not to call the wakeup function directly but to
537 * pass through task_wakeup(), because this one knows how to apply
Emeric Brun5f77fef2017-05-29 15:26:51 +0200538 * priorities to tasks. Using multi thread we must be sure that
539 * stream is fully initialized before calling task_wakeup. So
540 * the caller must handle the task_wakeup
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200541 */
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100542 DBG_TRACE_LEAVE(STRM_EV_STRM_NEW, s);
Willy Tarreau02d86382015-04-05 12:00:52 +0200543 return s;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200544
545 /* Error unrolling */
Willy Tarreauc5a7ff42015-04-05 11:52:08 +0200546 out_fail_accept:
Christopher Faulet92d36382015-11-05 13:35:03 +0100547 flt_stream_release(s, 0);
Olivier Houchard3f795f72019-04-17 22:51:06 +0200548 task_destroy(t);
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200549 tasklet_free(s->si[1].wait_event.tasklet);
Willy Tarreaue5f229e2018-10-15 11:08:55 +0200550 LIST_DEL(&s->list);
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200551out_fail_alloc_si1:
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200552 tasklet_free(s->si[0].wait_event.tasklet);
Willy Tarreau87787ac2017-08-28 16:22:54 +0200553 out_fail_alloc:
Willy Tarreaubafbe012017-11-24 17:34:44 +0100554 pool_free(pool_head_stream, s);
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100555 DBG_TRACE_DEVEL("leaving on error", STRM_EV_STRM_NEW|STRM_EV_STRM_ERR);
Willy Tarreau02d86382015-04-05 12:00:52 +0200556 return NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200557}
558
Willy Tarreaubaaee002006-06-26 02:48:02 +0200559/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200560 * frees the context associated to a stream. It must have been removed first.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200561 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200562static void stream_free(struct stream *s)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200563{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200564 struct session *sess = strm_sess(s);
565 struct proxy *fe = sess->fe;
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100566 struct bref *bref, *back;
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200567 struct conn_stream *cli_cs = objt_cs(s->si[0].end);
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100568 int must_free_sess;
Willy Tarreaua4cda672010-06-06 18:28:49 +0200569 int i;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100570
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100571 DBG_TRACE_POINT(STRM_EV_STRM_FREE, s);
572
Willy Tarreau0ad46fa2019-05-17 14:20:05 +0200573 /* detach the stream from its own task before even releasing it so
574 * that walking over a task list never exhibits a dying stream.
575 */
576 s->task->context = NULL;
577 __ha_barrier_store();
578
Willy Tarreaud0ad4a82018-07-25 11:13:53 +0200579 pendconn_free(s);
Willy Tarreau922a8062008-12-04 09:33:58 +0100580
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100581 if (objt_server(s->target)) { /* there may be requests left pending in queue */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200582 if (s->flags & SF_CURR_SESS) {
583 s->flags &= ~SF_CURR_SESS;
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100584 _HA_ATOMIC_SUB(&__objt_server(s->target)->cur_sess, 1);
Willy Tarreau1e62de62008-11-11 20:20:02 +0100585 }
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100586 if (may_dequeue_tasks(objt_server(s->target), s->be))
587 process_srv_queue(objt_server(s->target));
Willy Tarreau1e62de62008-11-11 20:20:02 +0100588 }
Willy Tarreau922a8062008-12-04 09:33:58 +0100589
Willy Tarreau7c669d72008-06-20 15:04:11 +0200590 if (unlikely(s->srv_conn)) {
Willy Tarreau87b09662015-04-03 00:22:06 +0200591 /* the stream still has a reserved slot on a server, but
Willy Tarreau7c669d72008-06-20 15:04:11 +0200592 * it should normally be only the same as the one above,
593 * so this should not happen in fact.
594 */
595 sess_change_server(s, NULL);
596 }
597
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100598 if (s->req.pipe)
599 put_pipe(s->req.pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100600
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100601 if (s->res.pipe)
602 put_pipe(s->res.pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100603
Willy Tarreaubf883e02014-11-25 21:10:35 +0100604 /* We may still be present in the buffer wait queue */
Willy Tarreau21046592020-02-26 10:39:36 +0100605 if (MT_LIST_ADDED(&s->buffer_wait.list))
606 MT_LIST_DEL(&s->buffer_wait.list);
607
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200608 if (s->req.buf.size || s->res.buf.size) {
Willy Tarreaue0d0b402019-08-08 08:06:27 +0200609 b_free(&s->req.buf);
610 b_free(&s->res.buf);
Olivier Houchard673867c2018-05-25 16:58:52 +0200611 offer_buffers(NULL, tasks_run_queue);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100612 }
Willy Tarreau9b28e032012-10-12 23:49:43 +0200613
Tim Duesterhusa17e6622020-03-05 20:19:02 +0100614 pool_free(pool_head_uniqueid, s->unique_id.ptr);
615 s->unique_id = IST_NULL;
Olivier Houchard32211a12019-02-01 18:10:46 +0100616
Thierry FOURNIER2c8b54e2016-12-17 12:45:32 +0100617 hlua_ctx_destroy(s->hlua);
618 s->hlua = NULL;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200619 if (s->txn)
620 http_end_txn(s);
Willy Tarreau46023632010-01-07 22:51:47 +0100621
Willy Tarreau1e954912012-10-12 17:50:05 +0200622 /* ensure the client-side transport layer is destroyed */
Willy Tarreau32560732017-10-08 11:33:44 +0200623 if (cli_cs)
624 cs_close(cli_cs);
Willy Tarreau1e954912012-10-12 17:50:05 +0200625
Willy Tarreaua4cda672010-06-06 18:28:49 +0200626 for (i = 0; i < s->store_count; i++) {
627 if (!s->store[i].ts)
628 continue;
629 stksess_free(s->store[i].table, s->store[i].ts);
630 s->store[i].ts = NULL;
631 }
632
Willy Tarreaueee5b512015-04-03 23:46:31 +0200633 if (s->txn) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100634 pool_free(pool_head_http_txn, s->txn);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200635 s->txn = NULL;
636 }
637
Baptiste Assmann333939c2019-01-21 08:34:50 +0100638 if (s->dns_ctx.dns_requester) {
Christopher Faulet5098a082020-07-22 11:46:32 +0200639 __decl_thread(struct dns_resolvers *resolvers = s->dns_ctx.parent->arg.dns.resolvers);
640
641 HA_SPIN_LOCK(DNS_LOCK, &resolvers->lock);
Baptiste Assmann333939c2019-01-21 08:34:50 +0100642 free(s->dns_ctx.hostname_dn); s->dns_ctx.hostname_dn = NULL;
643 s->dns_ctx.hostname_dn_len = 0;
644 dns_unlink_resolution(s->dns_ctx.dns_requester);
Christopher Faulet5098a082020-07-22 11:46:32 +0200645 HA_SPIN_UNLOCK(DNS_LOCK, &resolvers->lock);
Baptiste Assmann333939c2019-01-21 08:34:50 +0100646
647 pool_free(dns_requester_pool, s->dns_ctx.dns_requester);
648 s->dns_ctx.dns_requester = NULL;
649 }
650
Christopher Fauletd7c91962015-04-30 11:48:27 +0200651 flt_stream_stop(s);
Christopher Faulet92d36382015-11-05 13:35:03 +0100652 flt_stream_release(s, 0);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200653
Willy Tarreau92fb9832007-10-16 17:34:28 +0200654 if (fe) {
Christopher Faulet59399252019-11-07 14:27:52 +0100655 if (s->req_cap) {
656 struct cap_hdr *h;
657 for (h = fe->req_cap; h; h = h->next)
658 pool_free(h->pool, s->req_cap[h->index]);
659 }
660
661 if (s->res_cap) {
662 struct cap_hdr *h;
663 for (h = fe->rsp_cap; h; h = h->next)
664 pool_free(h->pool, s->res_cap[h->index]);
665 }
666
Willy Tarreaubafbe012017-11-24 17:34:44 +0100667 pool_free(fe->rsp_cap_pool, s->res_cap);
668 pool_free(fe->req_cap_pool, s->req_cap);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200669 }
Willy Tarreau0937bc42009-12-22 15:03:09 +0100670
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200671 /* Cleanup all variable contexts. */
Willy Tarreaucda7f3f2018-10-28 13:44:36 +0100672 if (!LIST_ISEMPTY(&s->vars_txn.head))
673 vars_prune(&s->vars_txn, s->sess, s);
674 if (!LIST_ISEMPTY(&s->vars_reqres.head))
675 vars_prune(&s->vars_reqres, s->sess, s);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200676
Willy Tarreau87b09662015-04-03 00:22:06 +0200677 stream_store_counters(s);
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +0200678
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100679 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100680 list_for_each_entry_safe(bref, back, &s->back_refs, users) {
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100681 /* we have to unlink all watchers. We must not relink them if
Willy Tarreau87b09662015-04-03 00:22:06 +0200682 * this stream was the last one in the list.
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100683 */
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100684 LIST_DEL(&bref->users);
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100685 LIST_INIT(&bref->users);
Willy Tarreau87b09662015-04-03 00:22:06 +0200686 if (s->list.n != &streams)
687 LIST_ADDQ(&LIST_ELEM(s->list.n, struct stream *, list)->back_refs, &bref->users);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100688 bref->ref = s->list.n;
689 }
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100690 LIST_DEL(&s->list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100691 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200692
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100693 /* applets do not release session yet */
694 must_free_sess = objt_appctx(sess->origin) && sess->origin == s->si[0].end;
695
Olivier Houchard4fdec7a2018-10-11 17:09:14 +0200696
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200697 si_release_endpoint(&s->si[1]);
698 si_release_endpoint(&s->si[0]);
Willy Tarreaufeb76402015-04-03 14:10:06 +0200699
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200700 tasklet_free(s->si[0].wait_event.tasklet);
701 tasklet_free(s->si[1].wait_event.tasklet);
Olivier Houchardd7bd3e32018-10-18 16:22:02 +0200702
Olivier Houcharda254a372019-04-05 15:30:12 +0200703 b_free(&s->si[1].l7_buffer);
Olivier Houchard25607af2018-11-23 14:50:47 +0100704 if (must_free_sess) {
705 sess->origin = NULL;
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100706 session_free(sess);
Olivier Houchard25607af2018-11-23 14:50:47 +0100707 }
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100708
Willy Tarreau90420602019-07-18 15:09:57 +0200709 sockaddr_free(&s->target_addr);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100710 pool_free(pool_head_stream, s);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200711
712 /* We may want to free the maximum amount of pools if the proxy is stopping */
Willy Tarreauc3914d42020-09-24 08:39:22 +0200713 if (fe && unlikely(fe->disabled)) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100714 pool_flush(pool_head_buffer);
715 pool_flush(pool_head_http_txn);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100716 pool_flush(pool_head_requri);
717 pool_flush(pool_head_capture);
718 pool_flush(pool_head_stream);
719 pool_flush(pool_head_session);
720 pool_flush(pool_head_connection);
721 pool_flush(pool_head_pendconn);
722 pool_flush(fe->req_cap_pool);
723 pool_flush(fe->rsp_cap_pool);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200724 }
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200725}
726
Willy Tarreau656859d2014-11-25 19:46:36 +0100727
Willy Tarreau87b09662015-04-03 00:22:06 +0200728/* Allocates a work buffer for stream <s>. It is meant to be called inside
729 * process_stream(). It will only allocate the side needed for the function
Willy Tarreaubc39a5d2015-04-20 15:52:18 +0200730 * to work fine, which is the response buffer so that an error message may be
731 * built and returned. Response buffers may be allocated from the reserve, this
732 * is critical to ensure that a response may always flow and will never block a
733 * server from releasing a connection. Returns 0 in case of failure, non-zero
734 * otherwise.
Willy Tarreau656859d2014-11-25 19:46:36 +0100735 */
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100736static int stream_alloc_work_buffer(struct stream *s)
Willy Tarreau656859d2014-11-25 19:46:36 +0100737{
Willy Tarreau21046592020-02-26 10:39:36 +0100738 if (MT_LIST_ADDED(&s->buffer_wait.list))
739 MT_LIST_DEL(&s->buffer_wait.list);
Willy Tarreau656859d2014-11-25 19:46:36 +0100740
Willy Tarreaubc39a5d2015-04-20 15:52:18 +0200741 if (b_alloc_margin(&s->res.buf, 0))
Willy Tarreau656859d2014-11-25 19:46:36 +0100742 return 1;
743
Willy Tarreau86891272020-07-10 08:22:26 +0200744 MT_LIST_ADDQ(&buffer_wq, &s->buffer_wait.list);
Willy Tarreau656859d2014-11-25 19:46:36 +0100745 return 0;
746}
747
748/* releases unused buffers after processing. Typically used at the end of the
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100749 * update() functions. It will try to wake up as many tasks/applets as the
750 * number of buffers that it releases. In practice, most often streams are
751 * blocked on a single buffer, so it makes sense to try to wake two up when two
752 * buffers are released at once.
Willy Tarreau656859d2014-11-25 19:46:36 +0100753 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200754void stream_release_buffers(struct stream *s)
Willy Tarreau656859d2014-11-25 19:46:36 +0100755{
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100756 int offer = 0;
Willy Tarreau656859d2014-11-25 19:46:36 +0100757
Willy Tarreau0c7ed5d2018-07-10 09:53:31 +0200758 if (c_size(&s->req) && c_empty(&s->req)) {
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100759 offer = 1;
760 b_free(&s->req.buf);
761 }
Willy Tarreau0c7ed5d2018-07-10 09:53:31 +0200762 if (c_size(&s->res) && c_empty(&s->res)) {
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100763 offer = 1;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100764 b_free(&s->res.buf);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100765 }
Willy Tarreau656859d2014-11-25 19:46:36 +0100766
Willy Tarreaubf883e02014-11-25 21:10:35 +0100767 /* if we're certain to have at least 1 buffer available, and there is
768 * someone waiting, we can wake up a waiter and offer them.
769 */
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100770 if (offer)
Olivier Houchard673867c2018-05-25 16:58:52 +0200771 offer_buffers(s, tasks_run_queue);
Willy Tarreau656859d2014-11-25 19:46:36 +0100772}
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200773
Willy Tarreau87b09662015-04-03 00:22:06 +0200774void stream_process_counters(struct stream *s)
Willy Tarreau30e71012007-11-26 20:15:35 +0100775{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200776 struct session *sess = s->sess;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100777 unsigned long long bytes;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100778 int i;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100779
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100780 bytes = s->req.total - s->logs.bytes_in;
781 s->logs.bytes_in = s->req.total;
782 if (bytes) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100783 _HA_ATOMIC_ADD(&sess->fe->fe_counters.bytes_in, bytes);
784 _HA_ATOMIC_ADD(&s->be->be_counters.bytes_in, bytes);
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100785
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100786 if (objt_server(s->target))
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100787 _HA_ATOMIC_ADD(&objt_server(s->target)->counters.bytes_in, bytes);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200788
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200789 if (sess->listener && sess->listener->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100790 _HA_ATOMIC_ADD(&sess->listener->counters->bytes_in, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200791
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100792 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Christopher Faulet84600632020-10-06 13:52:40 +0200793 if (!stkctr_inc_bytes_in_ctr(&s->stkctr[i], bytes))
794 stkctr_inc_bytes_in_ctr(&sess->stkctr[i], bytes);
Willy Tarreau30e71012007-11-26 20:15:35 +0100795 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100796 }
797
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100798 bytes = s->res.total - s->logs.bytes_out;
799 s->logs.bytes_out = s->res.total;
800 if (bytes) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100801 _HA_ATOMIC_ADD(&sess->fe->fe_counters.bytes_out, bytes);
802 _HA_ATOMIC_ADD(&s->be->be_counters.bytes_out, bytes);
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100803
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100804 if (objt_server(s->target))
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100805 _HA_ATOMIC_ADD(&objt_server(s->target)->counters.bytes_out, bytes);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200806
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200807 if (sess->listener && sess->listener->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100808 _HA_ATOMIC_ADD(&sess->listener->counters->bytes_out, bytes);
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200809
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100810 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Christopher Faulet84600632020-10-06 13:52:40 +0200811 if (!stkctr_inc_bytes_out_ctr(&s->stkctr[i], bytes))
812 stkctr_inc_bytes_out_ctr(&sess->stkctr[i], bytes);
Willy Tarreau30e71012007-11-26 20:15:35 +0100813 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100814 }
815}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200816
Amaury Denoyelleb7150782020-12-10 13:43:51 +0100817int stream_set_timeout(struct stream *s, enum act_timeout_name name, int timeout)
818{
Amaury Denoyelle90d3d882020-12-10 13:43:52 +0100819 switch (name) {
820 case ACT_TIMEOUT_SERVER:
821 s->req.wto = timeout;
822 s->res.rto = timeout;
823 return 1;
824
Amaury Denoyellefb504432020-12-10 13:43:53 +0100825 case ACT_TIMEOUT_TUNNEL:
826 s->tunnel_timeout = timeout;
827 return 1;
828
Amaury Denoyelle90d3d882020-12-10 13:43:52 +0100829 default:
830 return 0;
831 }
Amaury Denoyelleb7150782020-12-10 13:43:51 +0100832}
833
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100834/*
835 * This function handles the transition between the SI_ST_CON state and the
Willy Tarreau85e7d002010-05-31 11:57:51 +0200836 * SI_ST_EST state. It must only be called after switching from SI_ST_CON (or
Willy Tarreau4f283fa2019-06-05 14:34:03 +0200837 * 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 +0200838 * Note that it will switch the interface to SI_ST_DIS if we already have
839 * the CF_SHUTR flag, it means we were able to forward the request, and
840 * receive the response, before process_stream() had the opportunity to
841 * make the switch from SI_ST_CON to SI_ST_EST. When that happens, we want
Willy Tarreau3a9312a2020-01-09 18:43:15 +0100842 * to go through back_establish() anyway, to make sure the analysers run.
Willy Tarreaud66ed882019-06-05 18:02:04 +0200843 * Timeouts are cleared. Error are reported on the channel so that analysers
844 * can handle them.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100845 */
Willy Tarreau3a9312a2020-01-09 18:43:15 +0100846static void back_establish(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100847{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100848 struct stream_interface *si = &s->si[1];
Willy Tarreaud66ed882019-06-05 18:02:04 +0200849 struct conn_stream *srv_cs = objt_cs(si->end);
850 struct connection *conn = srv_cs ? srv_cs->conn : objt_conn(si->end);
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100851 struct channel *req = &s->req;
852 struct channel *rep = &s->res;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100853
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100854 DBG_TRACE_ENTER(STRM_EV_STRM_PROC|STRM_EV_SI_ST, s);
Willy Tarreaud66ed882019-06-05 18:02:04 +0200855 /* First, centralize the timers information, and clear any irrelevant
856 * timeout.
857 */
Willy Tarreau0e37f1c2013-12-31 23:06:46 +0100858 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreaud66ed882019-06-05 18:02:04 +0200859 si->exp = TICK_ETERNITY;
860 si->flags &= ~SI_FL_EXP;
861
862 /* errors faced after sending data need to be reported */
863 if (si->flags & SI_FL_ERR && req->flags & CF_WROTE_DATA) {
864 /* Don't add CF_WRITE_ERROR if we're here because
865 * early data were rejected by the server, or
866 * http_wait_for_response() will never be called
867 * to send a 425.
868 */
869 if (conn && conn->err_code != CO_ER_SSL_EARLY_FAILED)
870 req->flags |= CF_WRITE_ERROR;
871 rep->flags |= CF_READ_ERROR;
872 si->err_type = SI_ET_DATA_ERR;
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100873 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 +0200874 }
875
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100876 if (objt_server(s->target))
877 health_adjust(objt_server(s->target), HANA_STATUS_L4_OK);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100878
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100879 if (s->be->mode == PR_MODE_TCP) { /* let's allow immediate data connection in this case */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100880 /* if the user wants to log as soon as possible, without counting
881 * bytes from the server, then this is the right moment. */
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200882 if (!LIST_ISEMPTY(&strm_fe(s)->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau66425e32018-07-25 06:55:12 +0200883 /* note: no pend_pos here, session is established */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100884 s->logs.t_close = s->logs.t_connect; /* to get a valid end date */
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100885 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100886 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100887 }
888 else {
Willy Tarreaud81ca042013-12-31 22:33:13 +0100889 rep->flags |= CF_READ_DONTWAIT; /* a single read is enough to get response headers */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100890 }
891
Willy Tarreau0007d0a2018-12-11 18:01:38 +0100892 rep->analysers |= strm_fe(s)->fe_rsp_ana | s->be->be_rsp_ana;
Christopher Faulet309c6412015-12-02 09:57:32 +0100893
Willy Tarreau0007d0a2018-12-11 18:01:38 +0100894 /* Be sure to filter response headers if the backend is an HTTP proxy
895 * and if there are filters attached to the stream. */
896 if (s->be->mode == PR_MODE_HTTP && HAS_FILTERS(s))
897 rep->analysers |= AN_RES_FLT_HTTP_HDRS;
Christopher Faulet309c6412015-12-02 09:57:32 +0100898
Willy Tarreau8bb2ffb2018-11-14 17:54:13 +0100899 si_rx_endp_more(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200900 rep->flags |= CF_READ_ATTACHED; /* producer is now attached */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200901 if (objt_cs(si->end)) {
Amaury Denoyelle90d3d882020-12-10 13:43:52 +0100902 /* real connections have timeouts
903 * if already defined, it means that a set-timeout rule has
904 * been executed so do not overwrite them
905 */
906 if (!tick_isset(req->wto))
907 req->wto = s->be->timeout.server;
908 if (!tick_isset(rep->rto))
909 rep->rto = s->be->timeout.server;
Amaury Denoyellefb504432020-12-10 13:43:53 +0100910 if (!tick_isset(s->tunnel_timeout))
911 s->tunnel_timeout = s->be->timeout.tunnel;
Amaury Denoyelle90d3d882020-12-10 13:43:52 +0100912
Olivier Houchard47e9a1a2018-11-07 17:55:19 +0100913 /* The connection is now established, try to read data from the
914 * underlying layer, and subscribe to recv events. We use a
915 * delayed recv here to give a chance to the data to flow back
916 * by the time we process other tasks.
917 */
918 si_chk_rcv(si);
Willy Tarreaud04e8582010-05-31 12:31:35 +0200919 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100920 req->wex = TICK_ETERNITY;
Olivier Houchard78595262019-07-26 14:54:34 +0200921 /* If we managed to get the whole response, and we don't have anything
922 * left to send, or can't, switch to SI_ST_DIS now. */
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100923 if (rep->flags & (CF_SHUTR | CF_SHUTW)) {
Olivier Houchardaacc4052019-05-21 17:43:50 +0200924 si->state = SI_ST_DIS;
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100925 DBG_TRACE_STATE("response channel shutdwn for read/write", STRM_EV_STRM_PROC|STRM_EV_SI_ST|STRM_EV_STRM_ERR, s);
926 }
927
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100928 DBG_TRACE_LEAVE(STRM_EV_STRM_PROC|STRM_EV_SI_ST, s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100929}
930
Willy Tarreau87b09662015-04-03 00:22:06 +0200931/* Set correct stream termination flags in case no analyser has done it. It
Simon Hormandec5be42011-06-08 09:19:07 +0900932 * also counts a failed request if the server state has not reached the request
933 * stage.
934 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200935static void sess_set_term_flags(struct stream *s)
Simon Hormandec5be42011-06-08 09:19:07 +0900936{
Willy Tarreaue7dff022015-04-03 01:14:29 +0200937 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +0200938 if (s->si[1].state == SI_ST_INI) {
939 /* anything before REQ in fact */
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100940 _HA_ATOMIC_ADD(&strm_fe(s)->fe_counters.failed_req, 1);
Willy Tarreau2c1068c2015-09-23 12:21:21 +0200941 if (strm_li(s) && strm_li(s)->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100942 _HA_ATOMIC_ADD(&strm_li(s)->counters->failed_req, 1);
Simon Hormandec5be42011-06-08 09:19:07 +0900943
Willy Tarreaue7dff022015-04-03 01:14:29 +0200944 s->flags |= SF_FINST_R;
Simon Hormandec5be42011-06-08 09:19:07 +0900945 }
946 else if (s->si[1].state == SI_ST_QUE)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200947 s->flags |= SF_FINST_Q;
Willy Tarreau4f283fa2019-06-05 14:34:03 +0200948 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 +0200949 s->flags |= SF_FINST_C;
Simon Hormandec5be42011-06-08 09:19:07 +0900950 else if (s->si[1].state == SI_ST_EST || s->si[1].prev_state == SI_ST_EST)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200951 s->flags |= SF_FINST_D;
Simon Hormandec5be42011-06-08 09:19:07 +0900952 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200953 s->flags |= SF_FINST_L;
Simon Hormandec5be42011-06-08 09:19:07 +0900954 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100955}
956
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200957/* This function parses the use-service action ruleset. It executes
958 * the associated ACL and set an applet as a stream or txn final node.
959 * it returns ACT_RET_ERR if an error occurs, the proxy left in
Ilya Shipitsinc02a23f2020-05-06 00:53:22 +0500960 * consistent state. It returns ACT_RET_STOP in success case because
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200961 * use-service must be a terminal action. Returns ACT_RET_YIELD
962 * if the initialisation function require more data.
963 */
964enum act_return process_use_service(struct act_rule *rule, struct proxy *px,
965 struct session *sess, struct stream *s, int flags)
966
967{
968 struct appctx *appctx;
969
970 /* Initialises the applet if it is required. */
Christopher Faulet105ba6c2019-12-18 14:41:51 +0100971 if (flags & ACT_OPT_FIRST) {
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200972 /* Register applet. this function schedules the applet. */
973 s->target = &rule->applet.obj_type;
Willy Tarreau14bfe9a2018-12-19 15:19:27 +0100974 if (unlikely(!si_register_handler(&s->si[1], objt_applet(s->target))))
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200975 return ACT_RET_ERR;
976
977 /* Initialise the context. */
978 appctx = si_appctx(&s->si[1]);
979 memset(&appctx->ctx, 0, sizeof(appctx->ctx));
980 appctx->rule = rule;
981 }
982 else
983 appctx = si_appctx(&s->si[1]);
984
Ilya Shipitsinc02a23f2020-05-06 00:53:22 +0500985 /* Stops the applet scheduling, in case of the init function miss
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200986 * some data.
987 */
Willy Tarreau0cd3bd62018-11-06 18:46:37 +0100988 si_stop_get(&s->si[1]);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200989
990 /* Call initialisation. */
991 if (rule->applet.init)
992 switch (rule->applet.init(appctx, px, s)) {
993 case 0: return ACT_RET_ERR;
994 case 1: break;
995 default: return ACT_RET_YIELD;
996 }
997
Christopher Faulet2571bc62019-03-01 11:44:26 +0100998 if (rule->from != ACT_F_HTTP_REQ) {
999 if (sess->fe == s->be) /* report it if the request was intercepted by the frontend */
1000 _HA_ATOMIC_ADD(&sess->fe->fe_counters.intercepted_req, 1);
1001
1002 /* The flag SF_ASSIGNED prevent from server assignment. */
1003 s->flags |= SF_ASSIGNED;
1004 }
1005
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001006 /* Now we can schedule the applet. */
Willy Tarreau0cd3bd62018-11-06 18:46:37 +01001007 si_cant_get(&s->si[1]);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001008 appctx_wakeup(appctx);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001009 return ACT_RET_STOP;
1010}
1011
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001012/* This stream analyser checks the switching rules and changes the backend
Willy Tarreau4de91492010-01-22 19:10:05 +01001013 * if appropriate. The default_backend rule is also considered, then the
1014 * target backend's forced persistence rules are also evaluated last if any.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001015 * It returns 1 if the processing can continue on next analysers, or zero if it
1016 * either needs more data or wants to immediately abort the request.
1017 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001018static int process_switching_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001019{
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001020 struct persist_rule *prst_rule;
Willy Tarreau192252e2015-04-04 01:47:55 +02001021 struct session *sess = s->sess;
1022 struct proxy *fe = sess->fe;
Willy Tarreau4de91492010-01-22 19:10:05 +01001023
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001024 req->analysers &= ~an_bit;
1025 req->analyse_exp = TICK_ETERNITY;
1026
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001027 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001028
1029 /* now check whether we have some switching rules for this request */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001030 if (!(s->flags & SF_BE_ASSIGNED)) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001031 struct switching_rule *rule;
1032
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001033 list_for_each_entry(rule, &fe->switching_rules, list) {
Willy Tarreauf51658d2014-04-23 01:21:56 +02001034 int ret = 1;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001035
Willy Tarreauf51658d2014-04-23 01:21:56 +02001036 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001037 ret = acl_exec_cond(rule->cond, fe, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001038 ret = acl_pass(ret);
1039 if (rule->cond->pol == ACL_COND_UNLESS)
1040 ret = !ret;
1041 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001042
1043 if (ret) {
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001044 /* If the backend name is dynamic, try to resolve the name.
1045 * If we can't resolve the name, or if any error occurs, break
1046 * the loop and fallback to the default backend.
1047 */
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001048 struct proxy *backend = NULL;
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001049
1050 if (rule->dynamic) {
Willy Tarreau83061a82018-07-13 11:56:34 +02001051 struct buffer *tmp;
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001052
1053 tmp = alloc_trash_chunk();
1054 if (!tmp)
1055 goto sw_failed;
1056
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001057 if (build_logline(s, tmp->area, tmp->size, &rule->be.expr))
1058 backend = proxy_be_by_name(tmp->area);
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001059
1060 free_trash_chunk(tmp);
1061 tmp = NULL;
1062
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001063 if (!backend)
1064 break;
1065 }
1066 else
1067 backend = rule->be.backend;
1068
Willy Tarreau87b09662015-04-03 00:22:06 +02001069 if (!stream_set_backend(s, backend))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001070 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001071 break;
1072 }
1073 }
1074
1075 /* To ensure correct connection accounting on the backend, we
1076 * have to assign one if it was not set (eg: a listen). This
1077 * measure also takes care of correctly setting the default
1078 * backend if any.
1079 */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001080 if (!(s->flags & SF_BE_ASSIGNED))
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001081 if (!stream_set_backend(s, fe->defbe.be ? fe->defbe.be : s->be))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001082 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001083 }
1084
Willy Tarreaufb356202010-08-03 14:02:05 +02001085 /* 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 +02001086 if (fe == s->be) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001087 s->req.analysers &= ~AN_REQ_INSPECT_BE;
1088 s->req.analysers &= ~AN_REQ_HTTP_PROCESS_BE;
Christopher Faulet0184ea72017-01-05 14:06:34 +01001089 s->req.analysers &= ~AN_REQ_FLT_START_BE;
Willy Tarreaufb356202010-08-03 14:02:05 +02001090 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001091
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001092 /* 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 +02001093 * persistence rule, and report that in the stream.
Willy Tarreau4de91492010-01-22 19:10:05 +01001094 */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001095 list_for_each_entry(prst_rule, &s->be->persist_rules, list) {
Willy Tarreau4de91492010-01-22 19:10:05 +01001096 int ret = 1;
1097
1098 if (prst_rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001099 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 +01001100 ret = acl_pass(ret);
1101 if (prst_rule->cond->pol == ACL_COND_UNLESS)
1102 ret = !ret;
1103 }
1104
1105 if (ret) {
1106 /* no rule, or the rule matches */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001107 if (prst_rule->type == PERSIST_TYPE_FORCE) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001108 s->flags |= SF_FORCE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001109 } else {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001110 s->flags |= SF_IGNORE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001111 }
Willy Tarreau4de91492010-01-22 19:10:05 +01001112 break;
1113 }
1114 }
1115
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001116 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001117 return 1;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001118
1119 sw_failed:
1120 /* immediately abort this request in case of allocation failure */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001121 channel_abort(&s->req);
1122 channel_abort(&s->res);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001123
Willy Tarreaue7dff022015-04-03 01:14:29 +02001124 if (!(s->flags & SF_ERR_MASK))
1125 s->flags |= SF_ERR_RESOURCE;
1126 if (!(s->flags & SF_FINST_MASK))
1127 s->flags |= SF_FINST_R;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001128
Willy Tarreaueee5b512015-04-03 23:46:31 +02001129 if (s->txn)
1130 s->txn->status = 500;
Christopher Faulet0184ea72017-01-05 14:06:34 +01001131 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001132 s->req.analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001133 DBG_TRACE_DEVEL("leaving on error", STRM_EV_STRM_ANA|STRM_EV_STRM_ERR, s);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001134 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001135}
1136
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001137/* This stream analyser works on a request. It applies all use-server rules on
1138 * it then returns 1. The data must already be present in the buffer otherwise
1139 * they won't match. It always returns 1.
1140 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001141static int process_server_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001142{
1143 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001144 struct session *sess = s->sess;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001145 struct server_rule *rule;
1146
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001147 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001148
Willy Tarreaue7dff022015-04-03 01:14:29 +02001149 if (!(s->flags & SF_ASSIGNED)) {
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001150 list_for_each_entry(rule, &px->server_rules, list) {
1151 int ret;
1152
Willy Tarreau192252e2015-04-04 01:47:55 +02001153 ret = acl_exec_cond(rule->cond, s->be, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001154 ret = acl_pass(ret);
1155 if (rule->cond->pol == ACL_COND_UNLESS)
1156 ret = !ret;
1157
1158 if (ret) {
Jerome Magnin824186b2020-03-29 09:37:12 +02001159 struct server *srv;
1160
1161 if (rule->dynamic) {
1162 struct buffer *tmp = get_trash_chunk();
1163
1164 if (!build_logline(s, tmp->area, tmp->size, &rule->expr))
1165 break;
1166
1167 srv = findserver(s->be, tmp->area);
1168 if (!srv)
1169 break;
1170 }
1171 else
1172 srv = rule->srv.ptr;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001173
Emeric Brun52a91d32017-08-31 14:41:55 +02001174 if ((srv->cur_state != SRV_ST_STOPPED) ||
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001175 (px->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +02001176 (s->flags & SF_FORCE_PRST)) {
1177 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001178 s->target = &srv->obj_type;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001179 break;
1180 }
1181 /* if the server is not UP, let's go on with next rules
1182 * just in case another one is suited.
1183 */
1184 }
1185 }
1186 }
1187
1188 req->analysers &= ~an_bit;
1189 req->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001190 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001191 return 1;
1192}
1193
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001194static inline void sticking_rule_find_target(struct stream *s,
1195 struct stktable *t, struct stksess *ts)
1196{
1197 struct proxy *px = s->be;
1198 struct eb32_node *node;
1199 struct dict_entry *de;
1200 void *ptr;
1201 struct server *srv;
1202
1203 /* Look for the server name previously stored in <t> stick-table */
1204 HA_RWLOCK_RDLOCK(STK_SESS_LOCK, &ts->lock);
Thayne McCombs92149f92020-11-20 01:28:26 -07001205 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_KEY);
1206 de = stktable_data_cast(ptr, server_key);
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001207 HA_RWLOCK_RDUNLOCK(STK_SESS_LOCK, &ts->lock);
1208
1209 if (de) {
Thayne McCombs92149f92020-11-20 01:28:26 -07001210 struct ebpt_node *node;
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001211
Thayne McCombs92149f92020-11-20 01:28:26 -07001212 if (t->server_key_type == STKTABLE_SRV_NAME) {
1213 node = ebis_lookup(&px->conf.used_server_name, de->value.key);
1214 if (node) {
1215 srv = container_of(node, struct server, conf.name);
1216 goto found;
1217 }
1218 } else if (t->server_key_type == STKTABLE_SRV_ADDR) {
1219 HA_RWLOCK_RDLOCK(PROXY_LOCK, &px->lock);
1220 node = ebis_lookup(&px->used_server_addr, de->value.key);
1221 HA_RWLOCK_RDUNLOCK(PROXY_LOCK, &px->lock);
1222 if (node) {
1223 srv = container_of(node, struct server, addr_node);
1224 goto found;
1225 }
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001226 }
1227 }
1228
1229 /* Look for the server ID */
1230 HA_RWLOCK_RDLOCK(STK_SESS_LOCK, &ts->lock);
1231 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_ID);
1232 node = eb32_lookup(&px->conf.used_server_id, stktable_data_cast(ptr, server_id));
1233 HA_RWLOCK_RDUNLOCK(STK_SESS_LOCK, &ts->lock);
1234
1235 if (!node)
1236 return;
1237
1238 srv = container_of(node, struct server, conf.id);
1239 found:
1240 if ((srv->cur_state != SRV_ST_STOPPED) ||
1241 (px->options & PR_O_PERSIST) || (s->flags & SF_FORCE_PRST)) {
1242 s->flags |= SF_DIRECT | SF_ASSIGNED;
1243 s->target = &srv->obj_type;
1244 }
1245}
1246
Emeric Brun1d33b292010-01-04 15:47:17 +01001247/* This stream analyser works on a request. It applies all sticking rules on
1248 * it then returns 1. The data must already be present in the buffer otherwise
1249 * they won't match. It always returns 1.
1250 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001251static int process_sticking_rules(struct stream *s, struct channel *req, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001252{
1253 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001254 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001255 struct sticking_rule *rule;
1256
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001257 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001258
1259 list_for_each_entry(rule, &px->sticking_rules, list) {
1260 int ret = 1 ;
1261 int i;
1262
Willy Tarreau9667a802013-12-09 12:52:13 +01001263 /* Only the first stick store-request of each table is applied
1264 * and other ones are ignored. The purpose is to allow complex
1265 * configurations which look for multiple entries by decreasing
1266 * order of precision and to stop at the first which matches.
1267 * An example could be a store of the IP address from an HTTP
1268 * header first, then from the source if not found.
1269 */
Jerome Magninbee00ad2020-01-16 17:37:21 +01001270 if (rule->flags & STK_IS_STORE) {
1271 for (i = 0; i < s->store_count; i++) {
1272 if (rule->table.t == s->store[i].table)
1273 break;
1274 }
Emeric Brun1d33b292010-01-04 15:47:17 +01001275
Jerome Magninbee00ad2020-01-16 17:37:21 +01001276 if (i != s->store_count)
1277 continue;
1278 }
Emeric Brun1d33b292010-01-04 15:47:17 +01001279
1280 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001281 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001282 ret = acl_pass(ret);
1283 if (rule->cond->pol == ACL_COND_UNLESS)
1284 ret = !ret;
1285 }
1286
1287 if (ret) {
1288 struct stktable_key *key;
1289
Willy Tarreau192252e2015-04-04 01:47:55 +02001290 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 +01001291 if (!key)
1292 continue;
1293
1294 if (rule->flags & STK_IS_MATCH) {
1295 struct stksess *ts;
1296
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001297 if ((ts = stktable_lookup_key(rule->table.t, key)) != NULL) {
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001298 if (!(s->flags & SF_ASSIGNED))
1299 sticking_rule_find_target(s, rule->table.t, ts);
Emeric Brun819fc6f2017-06-13 19:37:32 +02001300 stktable_touch_local(rule->table.t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001301 }
1302 }
1303 if (rule->flags & STK_IS_STORE) {
1304 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
1305 struct stksess *ts;
1306
1307 ts = stksess_new(rule->table.t, key);
1308 if (ts) {
1309 s->store[s->store_count].table = rule->table.t;
1310 s->store[s->store_count++].ts = ts;
1311 }
1312 }
1313 }
1314 }
1315 }
1316
1317 req->analysers &= ~an_bit;
1318 req->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001319 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001320 return 1;
1321}
1322
1323/* This stream analyser works on a response. It applies all store rules on it
1324 * then returns 1. The data must already be present in the buffer otherwise
1325 * they won't match. It always returns 1.
1326 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001327static int process_store_rules(struct stream *s, struct channel *rep, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001328{
1329 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001330 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001331 struct sticking_rule *rule;
1332 int i;
Willy Tarreau9667a802013-12-09 12:52:13 +01001333 int nbreq = s->store_count;
Emeric Brun1d33b292010-01-04 15:47:17 +01001334
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001335 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001336
1337 list_for_each_entry(rule, &px->storersp_rules, list) {
1338 int ret = 1 ;
Emeric Brun1d33b292010-01-04 15:47:17 +01001339
Willy Tarreau9667a802013-12-09 12:52:13 +01001340 /* Only the first stick store-response of each table is applied
1341 * and other ones are ignored. The purpose is to allow complex
1342 * configurations which look for multiple entries by decreasing
1343 * order of precision and to stop at the first which matches.
1344 * An example could be a store of a set-cookie value, with a
1345 * fallback to a parameter found in a 302 redirect.
1346 *
1347 * The store-response rules are not allowed to override the
1348 * store-request rules for the same table, but they may coexist.
1349 * Thus we can have up to one store-request entry and one store-
1350 * response entry for the same table at any time.
1351 */
1352 for (i = nbreq; i < s->store_count; i++) {
1353 if (rule->table.t == s->store[i].table)
1354 break;
1355 }
1356
1357 /* skip existing entries for this table */
1358 if (i < s->store_count)
1359 continue;
1360
Emeric Brun1d33b292010-01-04 15:47:17 +01001361 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001362 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_RES|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001363 ret = acl_pass(ret);
1364 if (rule->cond->pol == ACL_COND_UNLESS)
1365 ret = !ret;
1366 }
1367
1368 if (ret) {
1369 struct stktable_key *key;
1370
Willy Tarreau192252e2015-04-04 01:47:55 +02001371 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 +01001372 if (!key)
1373 continue;
1374
Willy Tarreau37e340c2013-12-06 23:05:21 +01001375 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001376 struct stksess *ts;
1377
1378 ts = stksess_new(rule->table.t, key);
1379 if (ts) {
1380 s->store[s->store_count].table = rule->table.t;
Emeric Brun1d33b292010-01-04 15:47:17 +01001381 s->store[s->store_count++].ts = ts;
1382 }
1383 }
1384 }
1385 }
1386
1387 /* process store request and store response */
1388 for (i = 0; i < s->store_count; i++) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001389 struct stksess *ts;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001390 void *ptr;
Thayne McCombs92149f92020-11-20 01:28:26 -07001391 char *key;
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001392 struct dict_entry *de;
Thayne McCombs92149f92020-11-20 01:28:26 -07001393 struct stktable *t = s->store[i].table;
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001394
Willy Tarreauc93cd162014-05-13 15:54:22 +02001395 if (objt_server(s->target) && objt_server(s->target)->flags & SRV_F_NON_STICK) {
Simon Hormanfa461682011-06-25 09:39:49 +09001396 stksess_free(s->store[i].table, s->store[i].ts);
1397 s->store[i].ts = NULL;
1398 continue;
1399 }
1400
Thayne McCombs92149f92020-11-20 01:28:26 -07001401 ts = stktable_set_entry(t, s->store[i].ts);
Emeric Brun819fc6f2017-06-13 19:37:32 +02001402 if (ts != s->store[i].ts) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001403 /* the entry already existed, we can free ours */
Thayne McCombs92149f92020-11-20 01:28:26 -07001404 stksess_free(t, s->store[i].ts);
Emeric Brun1d33b292010-01-04 15:47:17 +01001405 }
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001406 s->store[i].ts = NULL;
Emeric Brun819fc6f2017-06-13 19:37:32 +02001407
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001408 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Thayne McCombs92149f92020-11-20 01:28:26 -07001409 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_ID);
Willy Tarreaub8d42d02018-09-20 11:11:15 +02001410 stktable_data_cast(ptr, server_id) = __objt_server(s->target)->puid;
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001411 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001412
Thayne McCombs92149f92020-11-20 01:28:26 -07001413 if (t->server_key_type == STKTABLE_SRV_NAME)
1414 key = __objt_server(s->target)->id;
1415 else if (t->server_key_type == STKTABLE_SRV_ADDR)
1416 key = __objt_server(s->target)->addr_node.key;
1417 else
1418 continue;
1419
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001420 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Thayne McCombs92149f92020-11-20 01:28:26 -07001421 de = dict_insert(&server_key_dict, key);
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001422 if (de) {
Thayne McCombs92149f92020-11-20 01:28:26 -07001423 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_KEY);
1424 stktable_data_cast(ptr, server_key) = de;
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001425 }
1426 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
1427
Thayne McCombs92149f92020-11-20 01:28:26 -07001428 stktable_touch_local(t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001429 }
Willy Tarreau2a164ee2010-06-18 09:57:45 +02001430 s->store_count = 0; /* everything is stored */
Emeric Brun1d33b292010-01-04 15:47:17 +01001431
1432 rep->analysers &= ~an_bit;
1433 rep->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001434
1435 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001436 return 1;
1437}
1438
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001439/* This macro is very specific to the function below. See the comments in
Willy Tarreau87b09662015-04-03 00:22:06 +02001440 * process_stream() below to understand the logic and the tests.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001441 */
1442#define UPDATE_ANALYSERS(real, list, back, flag) { \
1443 list = (((list) & ~(flag)) | ~(back)) & (real); \
1444 back = real; \
1445 if (!(list)) \
1446 break; \
1447 if (((list) ^ ((list) & ((list) - 1))) < (flag)) \
1448 continue; \
1449}
1450
Christopher Fauleta9215b72016-05-11 17:06:28 +02001451/* These 2 following macros call an analayzer for the specified channel if the
1452 * right flag is set. The first one is used for "filterable" analyzers. If a
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001453 * stream has some registered filters, pre and post analyaze callbacks are
Christopher Faulet0184ea72017-01-05 14:06:34 +01001454 * called. The second are used for other analyzers (AN_REQ/RES_FLT_* and
Christopher Fauleta9215b72016-05-11 17:06:28 +02001455 * AN_REQ/RES_HTTP_XFER_BODY) */
1456#define FLT_ANALYZE(strm, chn, fun, list, back, flag, ...) \
1457 { \
1458 if ((list) & (flag)) { \
1459 if (HAS_FILTERS(strm)) { \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001460 if (!flt_pre_analyze((strm), (chn), (flag))) \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001461 break; \
1462 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1463 break; \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001464 if (!flt_post_analyze((strm), (chn), (flag))) \
1465 break; \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001466 } \
1467 else { \
1468 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1469 break; \
1470 } \
1471 UPDATE_ANALYSERS((chn)->analysers, (list), \
1472 (back), (flag)); \
1473 } \
1474 }
1475
1476#define ANALYZE(strm, chn, fun, list, back, flag, ...) \
1477 { \
1478 if ((list) & (flag)) { \
1479 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1480 break; \
1481 UPDATE_ANALYSERS((chn)->analysers, (list), \
1482 (back), (flag)); \
1483 } \
1484 }
1485
Willy Tarreau87b09662015-04-03 00:22:06 +02001486/* Processes the client, server, request and response jobs of a stream task,
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001487 * then puts it back to the wait queue in a clean state, or cleans up its
1488 * resources if it must be deleted. Returns in <next> the date the task wants
1489 * to be woken up, or TICK_ETERNITY. In order not to call all functions for
1490 * nothing too many times, the request and response buffers flags are monitored
1491 * and each function is called only if at least another function has changed at
1492 * least one flag it is interested in.
1493 */
Olivier Houchard9f6af332018-05-25 14:04:04 +02001494struct task *process_stream(struct task *t, void *context, unsigned short state)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001495{
Willy Tarreau827aee92011-03-10 16:55:02 +01001496 struct server *srv;
Olivier Houchard9f6af332018-05-25 14:04:04 +02001497 struct stream *s = context;
Willy Tarreaufb0afa72015-04-03 14:46:27 +02001498 struct session *sess = s->sess;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001499 unsigned int rqf_last, rpf_last;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001500 unsigned int rq_prod_last, rq_cons_last;
1501 unsigned int rp_cons_last, rp_prod_last;
Willy Tarreau576507f2010-01-07 00:09:04 +01001502 unsigned int req_ana_back;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001503 struct channel *req, *res;
1504 struct stream_interface *si_f, *si_b;
Willy Tarreau3d07a162019-04-25 19:15:20 +02001505 unsigned int rate;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001506
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001507 DBG_TRACE_ENTER(STRM_EV_STRM_PROC, s);
1508
Willy Tarreau7af4fa92020-06-17 20:49:49 +02001509 activity[tid].stream_calls++;
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01001510
Willy Tarreau8f128b42014-11-28 15:07:47 +01001511 req = &s->req;
1512 res = &s->res;
1513
1514 si_f = &s->si[0];
1515 si_b = &s->si[1];
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001516
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001517 /* First, attempt to receive pending data from I/O layers */
Willy Tarreauade64782018-11-17 19:51:07 +01001518 si_sync_recv(si_f);
1519 si_sync_recv(si_b);
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001520
Willy Tarreau3d07a162019-04-25 19:15:20 +02001521 rate = update_freq_ctr(&s->call_rate, 1);
1522 if (rate >= 100000 && s->call_rate.prev_ctr) { // make sure to wait at least a full second
1523 stream_dump_and_crash(&s->obj_type, read_freq_ctr(&s->call_rate));
1524 }
Olivier Houchardc2aa7112018-09-11 18:27:21 +02001525
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001526 /* this data may be no longer valid, clear it */
Willy Tarreaueee5b512015-04-03 23:46:31 +02001527 if (s->txn)
1528 memset(&s->txn->auth, 0, sizeof(s->txn->auth));
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001529
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02001530 /* This flag must explicitly be set every time */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001531 req->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
1532 res->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001533
1534 /* Keep a copy of req/rep flags so that we can detect shutdowns */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001535 rqf_last = req->flags & ~CF_MASK_ANALYSER;
1536 rpf_last = res->flags & ~CF_MASK_ANALYSER;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001537
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001538 /* we don't want the stream interface functions to recursively wake us up */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001539 si_f->flags |= SI_FL_DONT_WAKE;
1540 si_b->flags |= SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001541
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001542 /* update pending events */
Olivier Houchard9f6af332018-05-25 14:04:04 +02001543 s->pending_events |= (state & TASK_WOKEN_ANY);
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001544
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001545 /* 1a: Check for low level timeouts if needed. We just set a flag on
1546 * stream interfaces when their timeouts have expired.
1547 */
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001548 if (unlikely(s->pending_events & TASK_WOKEN_TIMER)) {
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001549 si_check_timeouts(si_f);
1550 si_check_timeouts(si_b);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001551
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001552 /* check channel timeouts, and close the corresponding stream interfaces
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001553 * for future reads or writes. Note: this will also concern upper layers
1554 * but we do not touch any other flag. We must be careful and correctly
1555 * detect state changes when calling them.
1556 */
1557
Willy Tarreau8f128b42014-11-28 15:07:47 +01001558 channel_check_timeouts(req);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001559
Willy Tarreau8f128b42014-11-28 15:07:47 +01001560 if (unlikely((req->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1561 si_b->flags |= SI_FL_NOLINGER;
1562 si_shutw(si_b);
Willy Tarreau14641402009-12-29 14:49:56 +01001563 }
1564
Willy Tarreau8f128b42014-11-28 15:07:47 +01001565 if (unlikely((req->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1566 if (si_f->flags & SI_FL_NOHALF)
1567 si_f->flags |= SI_FL_NOLINGER;
1568 si_shutr(si_f);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001569 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001570
Willy Tarreau8f128b42014-11-28 15:07:47 +01001571 channel_check_timeouts(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001572
Willy Tarreau8f128b42014-11-28 15:07:47 +01001573 if (unlikely((res->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1574 si_f->flags |= SI_FL_NOLINGER;
1575 si_shutw(si_f);
Willy Tarreau14641402009-12-29 14:49:56 +01001576 }
1577
Willy Tarreau8f128b42014-11-28 15:07:47 +01001578 if (unlikely((res->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1579 if (si_b->flags & SI_FL_NOHALF)
1580 si_b->flags |= SI_FL_NOLINGER;
1581 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001582 }
Willy Tarreau798f4322012-11-08 14:49:17 +01001583
Christopher Fauleta00d8172016-11-10 14:58:05 +01001584 if (HAS_FILTERS(s))
1585 flt_stream_check_timeouts(s);
1586
Willy Tarreau798f4322012-11-08 14:49:17 +01001587 /* Once in a while we're woken up because the task expires. But
1588 * this does not necessarily mean that a timeout has been reached.
Willy Tarreau87b09662015-04-03 00:22:06 +02001589 * So let's not run a whole stream processing if only an expiration
Willy Tarreau798f4322012-11-08 14:49:17 +01001590 * timeout needs to be refreshed.
1591 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001592 if (!((req->flags | res->flags) &
Willy Tarreau798f4322012-11-08 14:49:17 +01001593 (CF_SHUTR|CF_READ_ACTIVITY|CF_READ_TIMEOUT|CF_SHUTW|
Willy Tarreauede3d882018-10-24 17:17:56 +02001594 CF_WRITE_ACTIVITY|CF_WRITE_TIMEOUT|CF_ANA_TIMEOUT)) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01001595 !((si_f->flags | si_b->flags) & (SI_FL_EXP|SI_FL_ERR)) &&
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001596 ((s->pending_events & TASK_WOKEN_ANY) == TASK_WOKEN_TIMER)) {
Willy Tarreau5fb04712016-05-04 10:18:37 +02001597 si_f->flags &= ~SI_FL_DONT_WAKE;
1598 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau798f4322012-11-08 14:49:17 +01001599 goto update_exp_and_leave;
Willy Tarreau5fb04712016-05-04 10:18:37 +02001600 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001601 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001602
Willy Tarreau829bd472019-06-06 09:17:23 +02001603 resync_stream_interface:
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001604 /* below we may emit error messages so we have to ensure that we have
1605 * our buffers properly allocated.
1606 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001607 if (!stream_alloc_work_buffer(s)) {
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001608 /* No buffer available, we've been subscribed to the list of
1609 * buffer waiters, let's wait for our turn.
1610 */
Willy Tarreau5fb04712016-05-04 10:18:37 +02001611 si_f->flags &= ~SI_FL_DONT_WAKE;
1612 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001613 goto update_exp_and_leave;
1614 }
1615
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001616 /* 1b: check for low-level errors reported at the stream interface.
1617 * First we check if it's a retryable error (in which case we don't
1618 * want to tell the buffer). Otherwise we report the error one level
1619 * upper by setting flags into the buffers. Note that the side towards
1620 * the client cannot have connect (hence retryable) errors. Also, the
1621 * connection setup code must be able to deal with any type of abort.
1622 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001623 srv = objt_server(s->target);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001624 if (unlikely(si_f->flags & SI_FL_ERR)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001625 if (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001626 si_shutr(si_f);
1627 si_shutw(si_f);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001628 si_report_error(si_f);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001629 if (!(req->analysers) && !(res->analysers)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001630 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1631 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001632 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001633 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001634 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001635 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001636 if (!(s->flags & SF_ERR_MASK))
1637 s->flags |= SF_ERR_CLICL;
1638 if (!(s->flags & SF_FINST_MASK))
1639 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001640 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001641 }
1642 }
1643
Willy Tarreau8f128b42014-11-28 15:07:47 +01001644 if (unlikely(si_b->flags & SI_FL_ERR)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001645 if (si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001646 si_shutr(si_b);
1647 si_shutw(si_b);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001648 si_report_error(si_b);
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001649 _HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001650 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001651 _HA_ATOMIC_ADD(&srv->counters.failed_resp, 1);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001652 if (!(req->analysers) && !(res->analysers)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001653 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1654 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001655 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001656 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001657 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001658 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001659 if (!(s->flags & SF_ERR_MASK))
1660 s->flags |= SF_ERR_SRVCL;
1661 if (!(s->flags & SF_FINST_MASK))
1662 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001663 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001664 }
1665 /* note: maybe we should process connection errors here ? */
1666 }
1667
Willy Tarreau4f283fa2019-06-05 14:34:03 +02001668 if (si_state_in(si_b->state, SI_SB_CON|SI_SB_RDY)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001669 /* we were trying to establish a connection on the server side,
1670 * maybe it succeeded, maybe it failed, maybe we timed out, ...
1671 */
Willy Tarreaud66ed882019-06-05 18:02:04 +02001672 if (si_b->state == SI_ST_RDY)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001673 back_handle_st_rdy(s);
Willy Tarreaud66ed882019-06-05 18:02:04 +02001674 else if (si_b->state == SI_ST_CON)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001675 back_handle_st_con(s);
Willy Tarreaud66ed882019-06-05 18:02:04 +02001676
1677 if (si_b->state == SI_ST_CER)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001678 back_handle_st_cer(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001679 else if (si_b->state == SI_ST_EST)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001680 back_establish(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001681
1682 /* state is now one of SI_ST_CON (still in progress), SI_ST_EST
1683 * (established), SI_ST_DIS (abort), SI_ST_CLO (last error),
1684 * SI_ST_ASS/SI_ST_TAR/SI_ST_REQ for retryable errors.
1685 */
1686 }
1687
Willy Tarreau8f128b42014-11-28 15:07:47 +01001688 rq_prod_last = si_f->state;
1689 rq_cons_last = si_b->state;
1690 rp_cons_last = si_f->state;
1691 rp_prod_last = si_b->state;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001692
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001693 /* Check for connection closure */
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001694 DBG_TRACE_POINT(STRM_EV_STRM_PROC, s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001695
1696 /* nothing special to be done on client side */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001697 if (unlikely(si_f->state == SI_ST_DIS))
1698 si_f->state = SI_ST_CLO;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001699
1700 /* When a server-side connection is released, we have to count it and
1701 * check for pending connections on this server.
1702 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001703 if (unlikely(si_b->state == SI_ST_DIS)) {
1704 si_b->state = SI_ST_CLO;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001705 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01001706 if (srv) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001707 if (s->flags & SF_CURR_SESS) {
1708 s->flags &= ~SF_CURR_SESS;
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001709 _HA_ATOMIC_SUB(&srv->cur_sess, 1);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001710 }
1711 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001712 if (may_dequeue_tasks(srv, s->be))
1713 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001714 }
1715 }
1716
1717 /*
1718 * Note: of the transient states (REQ, CER, DIS), only REQ may remain
1719 * at this point.
1720 */
1721
Willy Tarreau0be0ef92009-03-08 19:20:25 +01001722 resync_request:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001723 /* Analyse request */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001724 if (((req->flags & ~rqf_last) & CF_MASK_ANALYSER) ||
1725 ((req->flags ^ rqf_last) & CF_MASK_STATIC) ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01001726 (req->analysers && (req->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01001727 si_f->state != rq_prod_last ||
1728 si_b->state != rq_cons_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001729 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001730 unsigned int flags = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001731
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001732 if (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001733 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001734 unsigned int ana_list;
1735 unsigned int ana_back;
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001736
Willy Tarreau90deb182010-01-07 00:20:41 +01001737 /* it's up to the analysers to stop new connections,
1738 * disable reading or closing. Note: if an analyser
1739 * disables any of these bits, it is responsible for
1740 * enabling them again when it disables itself, so
1741 * that other analysers are called in similar conditions.
1742 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001743 channel_auto_read(req);
1744 channel_auto_connect(req);
1745 channel_auto_close(req);
Willy Tarreauedcf6682008-11-30 23:15:34 +01001746
1747 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01001748 * req->analysers, following the bit order from LSB
Willy Tarreauedcf6682008-11-30 23:15:34 +01001749 * to MSB. The analysers must remove themselves from
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001750 * the list when not needed. Any analyser may return 0
1751 * to break out of the loop, either because of missing
1752 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02001753 * kill the stream. We loop at least once through each
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001754 * analyser, and we may loop again if other analysers
1755 * are added in the middle.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001756 *
1757 * We build a list of analysers to run. We evaluate all
1758 * of these analysers in the order of the lower bit to
1759 * the higher bit. This ordering is very important.
1760 * An analyser will often add/remove other analysers,
1761 * including itself. Any changes to itself have no effect
1762 * on the loop. If it removes any other analysers, we
1763 * want those analysers not to be called anymore during
1764 * this loop. If it adds an analyser that is located
1765 * after itself, we want it to be scheduled for being
1766 * processed during the loop. If it adds an analyser
1767 * which is located before it, we want it to switch to
1768 * it immediately, even if it has already been called
1769 * once but removed since.
1770 *
1771 * In order to achieve this, we compare the analyser
1772 * list after the call with a copy of it before the
1773 * call. The work list is fed with analyser bits that
1774 * appeared during the call. Then we compare previous
1775 * work list with the new one, and check the bits that
1776 * appeared. If the lowest of these bits is lower than
1777 * the current bit, it means we have enabled a previous
1778 * analyser and must immediately loop again.
Willy Tarreauedcf6682008-11-30 23:15:34 +01001779 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001780
Willy Tarreau8f128b42014-11-28 15:07:47 +01001781 ana_list = ana_back = req->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001782 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001783 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01001784 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_FE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001785 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_FE);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001786 FLT_ANALYZE(s, req, http_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_HTTP);
1787 FLT_ANALYZE(s, req, http_wait_for_request_body, ana_list, ana_back, AN_REQ_HTTP_BODY);
1788 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 +02001789 FLT_ANALYZE(s, req, process_switching_rules, ana_list, ana_back, AN_REQ_SWITCHING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001790 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001791 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_BE);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001792 FLT_ANALYZE(s, req, http_process_req_common, ana_list, ana_back, AN_REQ_HTTP_PROCESS_BE, s->be);
1793 FLT_ANALYZE(s, req, http_process_tarpit, ana_list, ana_back, AN_REQ_HTTP_TARPIT);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001794 FLT_ANALYZE(s, req, process_server_rules, ana_list, ana_back, AN_REQ_SRV_RULES);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001795 FLT_ANALYZE(s, req, http_process_request, ana_list, ana_back, AN_REQ_HTTP_INNER);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001796 FLT_ANALYZE(s, req, tcp_persist_rdp_cookie, ana_list, ana_back, AN_REQ_PRST_RDP_COOKIE);
1797 FLT_ANALYZE(s, req, process_sticking_rules, ana_list, ana_back, AN_REQ_STICKING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001798 ANALYZE (s, req, flt_analyze_http_headers, ana_list, ana_back, AN_REQ_FLT_HTTP_HDRS);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001799 ANALYZE (s, req, http_request_forward_body, ana_list, ana_back, AN_REQ_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02001800 ANALYZE (s, req, pcli_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001801 ANALYZE (s, req, flt_xfer_data, ana_list, ana_back, AN_REQ_FLT_XFER_DATA);
1802 ANALYZE (s, req, flt_end_analyze, ana_list, ana_back, AN_REQ_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01001803 break;
1804 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001805 }
Willy Tarreau84455332009-03-15 22:34:05 +01001806
Willy Tarreau8f128b42014-11-28 15:07:47 +01001807 rq_prod_last = si_f->state;
1808 rq_cons_last = si_b->state;
1809 req->flags &= ~CF_WAKE_ONCE;
1810 rqf_last = req->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001811
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02001812 if ((req->flags ^ flags) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001813 goto resync_request;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001814 }
1815
Willy Tarreau576507f2010-01-07 00:09:04 +01001816 /* we'll monitor the request analysers while parsing the response,
1817 * because some response analysers may indirectly enable new request
1818 * analysers (eg: HTTP keep-alive).
1819 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001820 req_ana_back = req->analysers;
Willy Tarreau576507f2010-01-07 00:09:04 +01001821
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001822 resync_response:
1823 /* Analyse response */
1824
Willy Tarreau8f128b42014-11-28 15:07:47 +01001825 if (((res->flags & ~rpf_last) & CF_MASK_ANALYSER) ||
1826 (res->flags ^ rpf_last) & CF_MASK_STATIC ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01001827 (res->analysers && (res->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01001828 si_f->state != rp_cons_last ||
1829 si_b->state != rp_prod_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001830 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001831 unsigned int flags = res->flags;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001832
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001833 if (si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001834 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001835 unsigned int ana_list;
1836 unsigned int ana_back;
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001837
Willy Tarreau90deb182010-01-07 00:20:41 +01001838 /* it's up to the analysers to stop disable reading or
1839 * closing. Note: if an analyser disables any of these
1840 * bits, it is responsible for enabling them again when
1841 * it disables itself, so that other analysers are called
1842 * in similar conditions.
1843 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001844 channel_auto_read(res);
1845 channel_auto_close(res);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001846
1847 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01001848 * res->analysers, following the bit order from LSB
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001849 * to MSB. The analysers must remove themselves from
1850 * the list when not needed. Any analyser may return 0
1851 * to break out of the loop, either because of missing
1852 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02001853 * kill the stream. We loop at least once through each
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001854 * analyser, and we may loop again if other analysers
1855 * are added in the middle.
1856 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001857
Willy Tarreau8f128b42014-11-28 15:07:47 +01001858 ana_list = ana_back = res->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001859 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001860 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01001861 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_FE);
1862 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001863 FLT_ANALYZE(s, res, tcp_inspect_response, ana_list, ana_back, AN_RES_INSPECT);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001864 FLT_ANALYZE(s, res, http_wait_for_response, ana_list, ana_back, AN_RES_WAIT_HTTP);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001865 FLT_ANALYZE(s, res, process_store_rules, ana_list, ana_back, AN_RES_STORE_RULES);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001866 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 +01001867 ANALYZE (s, res, flt_analyze_http_headers, ana_list, ana_back, AN_RES_FLT_HTTP_HDRS);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001868 ANALYZE (s, res, http_response_forward_body, ana_list, ana_back, AN_RES_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02001869 ANALYZE (s, res, pcli_wait_for_response, ana_list, ana_back, AN_RES_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001870 ANALYZE (s, res, flt_xfer_data, ana_list, ana_back, AN_RES_FLT_XFER_DATA);
1871 ANALYZE (s, res, flt_end_analyze, ana_list, ana_back, AN_RES_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01001872 break;
1873 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001874 }
1875
Willy Tarreau8f128b42014-11-28 15:07:47 +01001876 rp_cons_last = si_f->state;
1877 rp_prod_last = si_b->state;
Christopher Fauletcdaea892017-07-06 15:49:30 +02001878 res->flags &= ~CF_WAKE_ONCE;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001879 rpf_last = res->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001880
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02001881 if ((res->flags ^ flags) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001882 goto resync_response;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001883 }
1884
Willy Tarreau576507f2010-01-07 00:09:04 +01001885 /* maybe someone has added some request analysers, so we must check and loop */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001886 if (req->analysers & ~req_ana_back)
Willy Tarreau576507f2010-01-07 00:09:04 +01001887 goto resync_request;
1888
Willy Tarreau8f128b42014-11-28 15:07:47 +01001889 if ((req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0499e352010-12-17 07:13:42 +01001890 goto resync_request;
1891
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001892 /* FIXME: here we should call protocol handlers which rely on
1893 * both buffers.
1894 */
1895
1896
1897 /*
Willy Tarreau87b09662015-04-03 00:22:06 +02001898 * Now we propagate unhandled errors to the stream. Normally
Willy Tarreauae526782010-03-04 20:34:23 +01001899 * we're just in a data phase here since it means we have not
1900 * seen any analyser who could set an error status.
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001901 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001902 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001903 if (unlikely(!(s->flags & SF_ERR_MASK))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001904 if (req->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001905 /* Report it if the client got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001906 req->analysers = 0;
1907 if (req->flags & CF_READ_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001908 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1909 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001910 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001911 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001912 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001913 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001914 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01001915 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001916 else if (req->flags & CF_READ_TIMEOUT) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001917 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1918 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001919 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001920 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001921 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001922 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001923 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01001924 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001925 else if (req->flags & CF_WRITE_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001926 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1927 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001928 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001929 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001930 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001931 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001932 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01001933 }
1934 else {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001935 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1936 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001937 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001938 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001939 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001940 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001941 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01001942 }
Willy Tarreau84455332009-03-15 22:34:05 +01001943 sess_set_term_flags(s);
Christopher Faulet5e1a9d72019-04-23 17:34:22 +02001944
1945 /* Abort the request if a client error occurred while
1946 * the backend stream-interface is in the SI_ST_INI
1947 * state. It is switched into the SI_ST_CLO state and
1948 * the request channel is erased. */
1949 if (si_b->state == SI_ST_INI) {
1950 si_b->state = SI_ST_CLO;
1951 channel_abort(req);
1952 if (IS_HTX_STRM(s))
1953 channel_htx_erase(req, htxbuf(&req->buf));
1954 else
1955 channel_erase(req);
1956 }
Willy Tarreau84455332009-03-15 22:34:05 +01001957 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001958 else if (res->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001959 /* Report it if the server got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001960 res->analysers = 0;
1961 if (res->flags & CF_READ_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001962 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1963 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001964 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001965 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001966 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001967 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001968 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01001969 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001970 else if (res->flags & CF_READ_TIMEOUT) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001971 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1972 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001973 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001974 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001975 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001976 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001977 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01001978 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001979 else if (res->flags & CF_WRITE_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001980 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1981 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001982 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001983 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001984 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001985 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001986 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01001987 }
1988 else {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001989 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1990 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001991 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001992 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001993 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001994 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001995 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01001996 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001997 sess_set_term_flags(s);
1998 }
Willy Tarreau84455332009-03-15 22:34:05 +01001999 }
2000
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002001 /*
2002 * Here we take care of forwarding unhandled data. This also includes
2003 * connection establishments and shutdown requests.
2004 */
2005
2006
Ilya Shipitsinb8888ab2021-01-06 21:20:16 +05002007 /* If no one is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002008 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002009 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002010 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002011 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02002012 if (unlikely((!req->analysers || (req->analysers == AN_REQ_FLT_END && !(req->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002013 !(req->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002014 (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002015 (req->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002016 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002017 * attached to it. If any data are left in, we'll permit them to
2018 * move.
2019 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002020 channel_auto_read(req);
2021 channel_auto_connect(req);
2022 channel_auto_close(req);
Willy Tarreau5bd8c372009-01-19 00:32:22 +01002023
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002024 if (IS_HTX_STRM(s)) {
2025 struct htx *htx = htxbuf(&req->buf);
2026
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002027 /* We'll let data flow between the producer (if still connected)
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002028 * to the consumer.
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002029 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002030 co_set_data(req, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002031 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002032 channel_htx_forward_forever(req, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002033 }
2034 else {
2035 /* We'll let data flow between the producer (if still connected)
2036 * to the consumer (which might possibly not be connected yet).
2037 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002038 c_adv(req, ci_data(req));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002039 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2040 channel_forward_forever(req);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002041 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002042 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002043
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002044 /* check if it is wise to enable kernel splicing to forward request data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002045 if (!(req->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2046 req->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002047 (global.tune.options & GTUNE_USE_SPLICE) &&
Christopher Faulet276c1e02019-11-05 16:49:23 +01002048 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->rcv_pipe &&
2049 __objt_cs(si_f->end)->conn->mux && __objt_cs(si_f->end)->conn->mux->rcv_pipe) &&
2050 (objt_cs(si_b->end) && __objt_cs(si_b->end)->conn->xprt && __objt_cs(si_b->end)->conn->xprt->snd_pipe &&
2051 __objt_cs(si_b->end)->conn->mux && __objt_cs(si_b->end)->conn->mux->snd_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002052 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002053 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_REQ) ||
2054 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002055 (req->flags & CF_STREAMER_FAST)))) {
2056 req->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002057 }
2058
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002059 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002060 rqf_last = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002061
Willy Tarreau520d95e2009-09-19 21:04:57 +02002062 /* it's possible that an upper layer has requested a connection setup or abort.
2063 * There are 2 situations where we decide to establish a new connection :
2064 * - there are data scheduled for emission in the buffer
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002065 * - the CF_AUTO_CONNECT flag is set (active connection)
Willy Tarreau520d95e2009-09-19 21:04:57 +02002066 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002067 if (si_b->state == SI_ST_INI) {
Christopher Faulet5e1a9d72019-04-23 17:34:22 +02002068 if (!(req->flags & CF_SHUTW)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002069 if ((req->flags & CF_AUTO_CONNECT) || !channel_is_empty(req)) {
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002070 /* If we have an appctx, there is no connect method, so we
2071 * immediately switch to the connected state, otherwise we
2072 * perform a connection request.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002073 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002074 si_b->state = SI_ST_REQ; /* new connection requested */
2075 si_b->conn_retries = s->be->conn_retries;
Olivier Houchard602bf7d2019-05-10 13:59:15 +02002076 if ((s->be->retry_type &~ PR_RE_CONN_FAILED) &&
Olivier Houchard7dd7b902020-05-13 19:07:20 +02002077 (s->be->mode == PR_MODE_HTTP) &&
Olivier Houchard602bf7d2019-05-10 13:59:15 +02002078 !(si_b->flags & SI_FL_D_L7_RETRY))
Olivier Houcharda254a372019-04-05 15:30:12 +02002079 si_b->flags |= SI_FL_L7_RETRY;
Willy Tarreau520d95e2009-09-19 21:04:57 +02002080 }
Willy Tarreau73201222009-08-16 18:27:24 +02002081 }
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002082 else {
Willy Tarreau0542c8b2017-11-24 15:01:10 +01002083 si_release_endpoint(si_b);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002084 si_b->state = SI_ST_CLO; /* shutw+ini = abort */
2085 channel_shutw_now(req); /* fix buffer flags upon abort */
2086 channel_shutr_now(res);
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002087 }
Willy Tarreau92795622009-03-06 12:51:23 +01002088 }
2089
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002090
2091 /* we may have a pending connection request, or a connection waiting
2092 * for completion.
2093 */
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002094 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 +02002095 /* prune the request variables and swap to the response variables. */
2096 if (s->vars_reqres.scope != SCOPE_RES) {
Jerome Magnin2f44e882019-11-09 18:00:47 +01002097 if (!LIST_ISEMPTY(&s->vars_reqres.head))
Willy Tarreaucda7f3f2018-10-28 13:44:36 +01002098 vars_prune(&s->vars_reqres, s->sess, s);
Jerome Magnin2f44e882019-11-09 18:00:47 +01002099 vars_init(&s->vars_reqres, SCOPE_RES);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +02002100 }
2101
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002102 do {
2103 /* nb: step 1 might switch from QUE to ASS, but we first want
2104 * to give a chance to step 2 to perform a redirect if needed.
2105 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002106 if (si_b->state != SI_ST_REQ)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002107 back_try_conn_req(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002108 if (si_b->state == SI_ST_REQ)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002109 back_handle_st_req(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002110
Willy Tarreauada4c582020-03-04 16:42:03 +01002111 /* get a chance to complete an immediate connection setup */
2112 if (si_b->state == SI_ST_RDY)
2113 goto resync_stream_interface;
2114
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +01002115 /* applets directly go to the ESTABLISHED state. Similarly,
2116 * servers experience the same fate when their connection
2117 * is reused.
2118 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002119 if (unlikely(si_b->state == SI_ST_EST))
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002120 back_establish(s);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01002121
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002122 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002123 if (si_b->state == SI_ST_ASS && srv && srv->rdr_len && (s->flags & SF_REDIRECTABLE))
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02002124 http_perform_server_redirect(s, si_b);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002125 } while (si_b->state == SI_ST_ASS);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002126 }
2127
Willy Tarreau829bd472019-06-06 09:17:23 +02002128 /* Let's see if we can send the pending request now */
2129 si_sync_send(si_b);
2130
2131 /*
2132 * Now forward all shutdown requests between both sides of the request buffer
2133 */
2134
2135 /* first, let's check if the request buffer needs to shutdown(write), which may
2136 * happen either because the input is closed or because we want to force a close
2137 * once the server has begun to respond. If a half-closed timeout is set, we adjust
2138 * the other side's timeout as well.
2139 */
2140 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
2141 (CF_AUTO_CLOSE|CF_SHUTR))) {
2142 channel_shutw_now(req);
2143 }
2144
2145 /* shutdown(write) pending */
2146 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2147 channel_is_empty(req))) {
2148 if (req->flags & CF_READ_ERROR)
2149 si_b->flags |= SI_FL_NOLINGER;
2150 si_shutw(si_b);
2151 }
2152
2153 /* shutdown(write) done on server side, we must stop the client too */
2154 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW &&
2155 !req->analysers))
2156 channel_shutr_now(req);
2157
2158 /* shutdown(read) pending */
2159 if (unlikely((req->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2160 if (si_f->flags & SI_FL_NOHALF)
2161 si_f->flags |= SI_FL_NOLINGER;
2162 si_shutr(si_f);
2163 }
2164
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002165 /* Benchmarks have shown that it's optimal to do a full resync now */
Willy Tarreau829bd472019-06-06 09:17:23 +02002166 if (si_f->state == SI_ST_DIS ||
2167 si_state_in(si_b->state, SI_SB_RDY|SI_SB_DIS) ||
2168 (si_f->flags & SI_FL_ERR && si_f->state != SI_ST_CLO) ||
2169 (si_b->flags & SI_FL_ERR && si_b->state != SI_ST_CLO))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002170 goto resync_stream_interface;
2171
Willy Tarreau815a9b22010-07-27 17:15:12 +02002172 /* otherwise we want to check if we need to resync the req buffer or not */
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02002173 if ((req->flags ^ rqf_last) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002174 goto resync_request;
2175
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002176 /* perform output updates to the response buffer */
Willy Tarreau84455332009-03-15 22:34:05 +01002177
Ilya Shipitsinb8888ab2021-01-06 21:20:16 +05002178 /* If no one is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002179 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002180 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002181 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002182 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02002183 if (unlikely((!res->analysers || (res->analysers == AN_RES_FLT_END && !(res->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002184 !(res->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002185 si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002186 (res->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002187 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002188 * attached to it. If any data are left in, we'll permit them to
2189 * move.
2190 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002191 channel_auto_read(res);
2192 channel_auto_close(res);
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002193
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002194 if (IS_HTX_STRM(s)) {
2195 struct htx *htx = htxbuf(&res->buf);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002196
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002197 /* We'll let data flow between the producer (if still connected)
2198 * to the consumer.
2199 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002200 co_set_data(res, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002201 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002202 channel_htx_forward_forever(res, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002203 }
2204 else {
2205 /* We'll let data flow between the producer (if still connected)
2206 * to the consumer.
2207 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002208 c_adv(res, ci_data(res));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002209 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2210 channel_forward_forever(res);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002211 }
Willy Tarreau42529c32015-07-09 18:38:57 +02002212
Willy Tarreauce887fd2012-05-12 12:50:00 +02002213 /* if we have no analyser anymore in any direction and have a
Willy Tarreau05cdd962014-05-10 14:30:07 +02002214 * tunnel timeout set, use it now. Note that we must respect
2215 * the half-closed timeouts as well.
Willy Tarreauce887fd2012-05-12 12:50:00 +02002216 */
Amaury Denoyellefb504432020-12-10 13:43:53 +01002217 if (!req->analysers && s->tunnel_timeout) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002218 req->rto = req->wto = res->rto = res->wto =
Amaury Denoyellefb504432020-12-10 13:43:53 +01002219 s->tunnel_timeout;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002220
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002221 if ((req->flags & CF_SHUTR) && tick_isset(sess->fe->timeout.clientfin))
2222 res->wto = sess->fe->timeout.clientfin;
Willy Tarreau8f128b42014-11-28 15:07:47 +01002223 if ((req->flags & CF_SHUTW) && tick_isset(s->be->timeout.serverfin))
2224 res->rto = s->be->timeout.serverfin;
2225 if ((res->flags & CF_SHUTR) && tick_isset(s->be->timeout.serverfin))
2226 req->wto = s->be->timeout.serverfin;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002227 if ((res->flags & CF_SHUTW) && tick_isset(sess->fe->timeout.clientfin))
2228 req->rto = sess->fe->timeout.clientfin;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002229
Willy Tarreau8f128b42014-11-28 15:07:47 +01002230 req->rex = tick_add(now_ms, req->rto);
2231 req->wex = tick_add(now_ms, req->wto);
2232 res->rex = tick_add(now_ms, res->rto);
2233 res->wex = tick_add(now_ms, res->wto);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002234 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002235 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002236
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002237 /* check if it is wise to enable kernel splicing to forward response data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002238 if (!(res->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2239 res->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002240 (global.tune.options & GTUNE_USE_SPLICE) &&
Christopher Faulet276c1e02019-11-05 16:49:23 +01002241 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->snd_pipe &&
2242 __objt_cs(si_f->end)->conn->mux && __objt_cs(si_f->end)->conn->mux->snd_pipe) &&
2243 (objt_cs(si_b->end) && __objt_cs(si_b->end)->conn->xprt && __objt_cs(si_b->end)->conn->xprt->rcv_pipe &&
2244 __objt_cs(si_b->end)->conn->mux && __objt_cs(si_b->end)->conn->mux->rcv_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002245 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002246 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_RTR) ||
2247 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002248 (res->flags & CF_STREAMER_FAST)))) {
2249 res->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002250 }
2251
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002252 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002253 rpf_last = res->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002254
Willy Tarreau829bd472019-06-06 09:17:23 +02002255 /* Let's see if we can send the pending response now */
2256 si_sync_send(si_f);
2257
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002258 /*
2259 * Now forward all shutdown requests between both sides of the buffer
2260 */
2261
2262 /*
2263 * FIXME: this is probably where we should produce error responses.
2264 */
2265
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002266 /* first, let's check if the response buffer needs to shutdown(write) */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002267 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau05cdd962014-05-10 14:30:07 +02002268 (CF_AUTO_CLOSE|CF_SHUTR))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002269 channel_shutw_now(res);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002270 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002271
2272 /* shutdown(write) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002273 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2274 channel_is_empty(res))) {
2275 si_shutw(si_f);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002276 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002277
2278 /* shutdown(write) done on the client side, we must stop the server too */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002279 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW) &&
2280 !res->analysers)
2281 channel_shutr_now(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002282
2283 /* shutdown(read) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002284 if (unlikely((res->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2285 if (si_b->flags & SI_FL_NOHALF)
2286 si_b->flags |= SI_FL_NOLINGER;
2287 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002288 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002289
Willy Tarreau829bd472019-06-06 09:17:23 +02002290 if (si_f->state == SI_ST_DIS ||
2291 si_state_in(si_b->state, SI_SB_RDY|SI_SB_DIS) ||
2292 (si_f->flags & SI_FL_ERR && si_f->state != SI_ST_CLO) ||
2293 (si_b->flags & SI_FL_ERR && si_b->state != SI_ST_CLO))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002294 goto resync_stream_interface;
2295
Willy Tarreau3c5c0662019-06-06 14:32:49 +02002296 if ((req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002297 goto resync_request;
2298
Willy Tarreau8f128b42014-11-28 15:07:47 +01002299 if ((res->flags ^ rpf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002300 goto resync_response;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002301
Willy Tarreau829bd472019-06-06 09:17:23 +02002302 if (((req->flags ^ rqf_last) | (res->flags ^ rpf_last)) & CF_MASK_ANALYSER)
2303 goto resync_request;
2304
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002305 /* we're interested in getting wakeups again */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002306 si_f->flags &= ~SI_FL_DONT_WAKE;
2307 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002308
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002309 /* This is needed only when debugging is enabled, to indicate
2310 * client-side or server-side close. Please note that in the unlikely
2311 * event where both sides would close at once, the sequence is reported
2312 * on the server side first.
2313 */
2314 if (unlikely((global.mode & MODE_DEBUG) &&
2315 (!(global.mode & MODE_QUIET) ||
2316 (global.mode & MODE_VERBOSE)))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002317 if (si_b->state == SI_ST_CLO &&
2318 si_b->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002319 chunk_printf(&trash, "%08x:%s.srvcls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002320 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002321 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2322 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01002323 DISGUISE(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002324 }
2325
Willy Tarreau8f128b42014-11-28 15:07:47 +01002326 if (si_f->state == SI_ST_CLO &&
2327 si_f->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002328 chunk_printf(&trash, "%08x:%s.clicls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002329 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002330 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2331 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01002332 DISGUISE(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002333 }
2334 }
2335
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002336 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 +02002337 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED) && !(s->flags & SF_IGNORE))
Willy Tarreau87b09662015-04-03 00:22:06 +02002338 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002339
Willy Tarreaud14844a2018-11-08 18:15:29 +01002340 si_update_both(si_f, si_b);
Olivier Houchard53216e72018-10-10 15:46:36 +02002341
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002342 /* Trick: if a request is being waiting for the server to respond,
2343 * and if we know the server can timeout, we don't want the timeout
2344 * to expire on the client side first, but we're still interested
2345 * in passing data from the client to the server (eg: POST). Thus,
2346 * we can cancel the client's request timeout if the server's
2347 * request timeout is set and the server has not yet sent a response.
2348 */
2349
Willy Tarreau8f128b42014-11-28 15:07:47 +01002350 if ((res->flags & (CF_AUTO_CLOSE|CF_SHUTR)) == 0 &&
2351 (tick_isset(req->wex) || tick_isset(res->rex))) {
2352 req->flags |= CF_READ_NOEXP;
2353 req->rex = TICK_ETERNITY;
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002354 }
2355
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002356 /* Reset pending events now */
2357 s->pending_events = 0;
2358
Willy Tarreau798f4322012-11-08 14:49:17 +01002359 update_exp_and_leave:
Willy Tarreau5fb04712016-05-04 10:18:37 +02002360 /* Note: please ensure that if you branch here you disable SI_FL_DONT_WAKE */
Christopher Fauleta00d8172016-11-10 14:58:05 +01002361 t->expire = tick_first((tick_is_expired(t->expire, now_ms) ? 0 : t->expire),
2362 tick_first(tick_first(req->rex, req->wex),
2363 tick_first(res->rex, res->wex)));
Willy Tarreaudef0d222016-11-08 22:03:00 +01002364 if (!req->analysers)
2365 req->analyse_exp = TICK_ETERNITY;
2366
2367 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED) &&
2368 (!tick_isset(req->analyse_exp) || tick_is_expired(req->analyse_exp, now_ms)))
2369 req->analyse_exp = tick_add(now_ms, 5000);
2370
2371 t->expire = tick_first(t->expire, req->analyse_exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002372
Willy Tarreau9a398be2017-11-10 17:14:23 +01002373 t->expire = tick_first(t->expire, res->analyse_exp);
2374
Willy Tarreau8f128b42014-11-28 15:07:47 +01002375 if (si_f->exp)
2376 t->expire = tick_first(t->expire, si_f->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002377
Willy Tarreau8f128b42014-11-28 15:07:47 +01002378 if (si_b->exp)
2379 t->expire = tick_first(t->expire, si_b->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002380
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002381 s->pending_events &= ~(TASK_WOKEN_TIMER | TASK_WOKEN_RES);
Willy Tarreau87b09662015-04-03 00:22:06 +02002382 stream_release_buffers(s);
Christopher Fauleteea8fc72019-11-05 16:18:10 +01002383
2384 DBG_TRACE_DEVEL("queuing", STRM_EV_STRM_PROC, s);
Willy Tarreau26c25062009-03-08 09:38:41 +01002385 return t; /* nothing more to do */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002386 }
2387
Christopher Fauleteea8fc72019-11-05 16:18:10 +01002388 DBG_TRACE_DEVEL("releasing", STRM_EV_STRM_PROC, s);
2389
Willy Tarreaue7dff022015-04-03 01:14:29 +02002390 if (s->flags & SF_BE_ASSIGNED)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002391 _HA_ATOMIC_SUB(&s->be->beconn, 1);
Willy Tarreau6f5e4b92017-09-15 09:07:56 +02002392
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002393 if (unlikely((global.mode & MODE_DEBUG) &&
2394 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)))) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002395 chunk_printf(&trash, "%08x:%s.closed[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002396 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002397 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2398 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01002399 DISGUISE(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002400 }
2401
2402 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
Olivier Houchard4c18f942019-07-31 18:05:26 +02002403 if (!(s->flags & SF_IGNORE))
2404 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002405
Willy Tarreaueee5b512015-04-03 23:46:31 +02002406 if (s->txn && s->txn->status) {
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002407 int n;
2408
Willy Tarreaueee5b512015-04-03 23:46:31 +02002409 n = s->txn->status / 100;
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002410 if (n < 1 || n > 5)
2411 n = 0;
2412
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002413 if (sess->fe->mode == PR_MODE_HTTP) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002414 _HA_ATOMIC_ADD(&sess->fe->fe_counters.p.http.rsp[n], 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002415 }
Willy Tarreaue7dff022015-04-03 01:14:29 +02002416 if ((s->flags & SF_BE_ASSIGNED) &&
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002417 (s->be->mode == PR_MODE_HTTP)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002418 _HA_ATOMIC_ADD(&s->be->be_counters.p.http.rsp[n], 1);
2419 _HA_ATOMIC_ADD(&s->be->be_counters.p.http.cum_req, 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002420 }
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002421 }
2422
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002423 /* let's do a final log if we need it */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002424 if (!LIST_ISEMPTY(&sess->fe->logformat) && s->logs.logwait &&
Willy Tarreaue7dff022015-04-03 01:14:29 +02002425 !(s->flags & SF_MONITOR) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002426 (!(sess->fe->options & PR_O_NULLNOLOG) || req->total)) {
Willy Tarreau66425e32018-07-25 06:55:12 +02002427 /* we may need to know the position in the queue */
2428 pendconn_free(s);
Willy Tarreaua5555ec2008-11-30 19:02:32 +01002429 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002430 }
2431
Willy Tarreau87b09662015-04-03 00:22:06 +02002432 /* update time stats for this stream */
2433 stream_update_time_stats(s);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002434
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002435 /* the task MUST not be in the run queue anymore */
Willy Tarreau87b09662015-04-03 00:22:06 +02002436 stream_free(s);
Olivier Houchard3f795f72019-04-17 22:51:06 +02002437 task_destroy(t);
Willy Tarreau26c25062009-03-08 09:38:41 +01002438 return NULL;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002439}
2440
Willy Tarreau87b09662015-04-03 00:22:06 +02002441/* Update the stream's backend and server time stats */
2442void stream_update_time_stats(struct stream *s)
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002443{
2444 int t_request;
2445 int t_queue;
2446 int t_connect;
2447 int t_data;
2448 int t_close;
2449 struct server *srv;
Marcin Deraneka8dbdf32020-05-15 20:02:40 +02002450 unsigned int samples_window;
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002451
2452 t_request = 0;
2453 t_queue = s->logs.t_queue;
2454 t_connect = s->logs.t_connect;
2455 t_close = s->logs.t_close;
2456 t_data = s->logs.t_data;
2457
2458 if (s->be->mode != PR_MODE_HTTP)
2459 t_data = t_connect;
2460
2461 if (t_connect < 0 || t_data < 0)
2462 return;
2463
2464 if (tv_isge(&s->logs.tv_request, &s->logs.tv_accept))
2465 t_request = tv_ms_elapsed(&s->logs.tv_accept, &s->logs.tv_request);
2466
2467 t_data -= t_connect;
2468 t_connect -= t_queue;
2469 t_queue -= t_request;
2470
2471 srv = objt_server(s->target);
2472 if (srv) {
Marcin Deraneka8dbdf32020-05-15 20:02:40 +02002473 samples_window = (((s->be->mode == PR_MODE_HTTP) ?
2474 srv->counters.p.http.cum_req : srv->counters.cum_lbconn) > TIME_STATS_SAMPLES) ? TIME_STATS_SAMPLES : 0;
2475 swrate_add_dynamic(&srv->counters.q_time, samples_window, t_queue);
2476 swrate_add_dynamic(&srv->counters.c_time, samples_window, t_connect);
2477 swrate_add_dynamic(&srv->counters.d_time, samples_window, t_data);
2478 swrate_add_dynamic(&srv->counters.t_time, samples_window, t_close);
Christopher Fauletefb41f02019-11-08 14:53:15 +01002479 HA_ATOMIC_UPDATE_MAX(&srv->counters.qtime_max, t_queue);
2480 HA_ATOMIC_UPDATE_MAX(&srv->counters.ctime_max, t_connect);
2481 HA_ATOMIC_UPDATE_MAX(&srv->counters.dtime_max, t_data);
2482 HA_ATOMIC_UPDATE_MAX(&srv->counters.ttime_max, t_close);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002483 }
Marcin Deraneka8dbdf32020-05-15 20:02:40 +02002484 samples_window = (((s->be->mode == PR_MODE_HTTP) ?
2485 s->be->be_counters.p.http.cum_req : s->be->be_counters.cum_lbconn) > TIME_STATS_SAMPLES) ? TIME_STATS_SAMPLES : 0;
2486 swrate_add_dynamic(&s->be->be_counters.q_time, samples_window, t_queue);
2487 swrate_add_dynamic(&s->be->be_counters.c_time, samples_window, t_connect);
2488 swrate_add_dynamic(&s->be->be_counters.d_time, samples_window, t_data);
2489 swrate_add_dynamic(&s->be->be_counters.t_time, samples_window, t_close);
Christopher Fauletefb41f02019-11-08 14:53:15 +01002490 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.qtime_max, t_queue);
2491 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.ctime_max, t_connect);
2492 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.dtime_max, t_data);
2493 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.ttime_max, t_close);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002494}
2495
Willy Tarreau7c669d72008-06-20 15:04:11 +02002496/*
2497 * This function adjusts sess->srv_conn and maintains the previous and new
Willy Tarreau87b09662015-04-03 00:22:06 +02002498 * server's served stream counts. Setting newsrv to NULL is enough to release
Willy Tarreau7c669d72008-06-20 15:04:11 +02002499 * current connection slot. This function also notifies any LB algo which might
Willy Tarreau87b09662015-04-03 00:22:06 +02002500 * expect to be informed about any change in the number of active streams on a
Willy Tarreau7c669d72008-06-20 15:04:11 +02002501 * server.
2502 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002503void sess_change_server(struct stream *sess, struct server *newsrv)
Willy Tarreau7c669d72008-06-20 15:04:11 +02002504{
2505 if (sess->srv_conn == newsrv)
2506 return;
2507
2508 if (sess->srv_conn) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002509 _HA_ATOMIC_SUB(&sess->srv_conn->served, 1);
2510 _HA_ATOMIC_SUB(&sess->srv_conn->proxy->served, 1);
2511 __ha_barrier_atomic_store();
Christopher Faulet26a52af2020-10-16 16:27:17 +02002512 if (sess->srv_conn->proxy->lbprm.server_drop_conn) {
2513 HA_SPIN_LOCK(SERVER_LOCK, &sess->srv_conn->lock);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002514 sess->srv_conn->proxy->lbprm.server_drop_conn(sess->srv_conn);
Christopher Faulet26a52af2020-10-16 16:27:17 +02002515 HA_SPIN_UNLOCK(SERVER_LOCK, &sess->srv_conn->lock);
2516 }
Willy Tarreau87b09662015-04-03 00:22:06 +02002517 stream_del_srv_conn(sess);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002518 }
2519
2520 if (newsrv) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002521 _HA_ATOMIC_ADD(&newsrv->served, 1);
2522 _HA_ATOMIC_ADD(&newsrv->proxy->served, 1);
2523 __ha_barrier_atomic_store();
Christopher Faulet26a52af2020-10-16 16:27:17 +02002524 if (newsrv->proxy->lbprm.server_take_conn) {
2525 HA_SPIN_LOCK(SERVER_LOCK, &newsrv->lock);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002526 newsrv->proxy->lbprm.server_take_conn(newsrv);
Christopher Faulet26a52af2020-10-16 16:27:17 +02002527 HA_SPIN_UNLOCK(SERVER_LOCK, &newsrv->lock);
2528 }
Willy Tarreau87b09662015-04-03 00:22:06 +02002529 stream_add_srv_conn(sess, newsrv);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002530 }
2531}
2532
Willy Tarreau84455332009-03-15 22:34:05 +01002533/* Handle server-side errors for default protocols. It is called whenever a a
2534 * connection setup is aborted or a request is aborted in queue. It sets the
Willy Tarreau87b09662015-04-03 00:22:06 +02002535 * stream termination flags so that the caller does not have to worry about
Willy Tarreau84455332009-03-15 22:34:05 +01002536 * them. It's installed as ->srv_error for the server-side stream_interface.
2537 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002538void default_srv_error(struct stream *s, struct stream_interface *si)
Willy Tarreau84455332009-03-15 22:34:05 +01002539{
2540 int err_type = si->err_type;
2541 int err = 0, fin = 0;
2542
2543 if (err_type & SI_ET_QUEUE_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002544 err = SF_ERR_CLICL;
2545 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002546 }
2547 else if (err_type & SI_ET_CONN_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002548 err = SF_ERR_CLICL;
2549 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002550 }
2551 else if (err_type & SI_ET_QUEUE_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002552 err = SF_ERR_SRVTO;
2553 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002554 }
2555 else if (err_type & SI_ET_QUEUE_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002556 err = SF_ERR_SRVCL;
2557 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002558 }
2559 else if (err_type & SI_ET_CONN_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002560 err = SF_ERR_SRVTO;
2561 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002562 }
2563 else if (err_type & SI_ET_CONN_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002564 err = SF_ERR_SRVCL;
2565 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002566 }
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002567 else if (err_type & SI_ET_CONN_RES) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002568 err = SF_ERR_RESOURCE;
2569 fin = SF_FINST_C;
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002570 }
Willy Tarreau84455332009-03-15 22:34:05 +01002571 else /* SI_ET_CONN_OTHER and others */ {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002572 err = SF_ERR_INTERNAL;
2573 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002574 }
2575
Willy Tarreaue7dff022015-04-03 01:14:29 +02002576 if (!(s->flags & SF_ERR_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002577 s->flags |= err;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002578 if (!(s->flags & SF_FINST_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002579 s->flags |= fin;
2580}
Willy Tarreau7c669d72008-06-20 15:04:11 +02002581
Willy Tarreaue7dff022015-04-03 01:14:29 +02002582/* kill a stream and set the termination flags to <why> (one of SF_ERR_*) */
Willy Tarreau87b09662015-04-03 00:22:06 +02002583void stream_shutdown(struct stream *stream, int why)
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002584{
Willy Tarreau87b09662015-04-03 00:22:06 +02002585 if (stream->req.flags & (CF_SHUTW|CF_SHUTW_NOW))
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002586 return;
2587
Willy Tarreau87b09662015-04-03 00:22:06 +02002588 channel_shutw_now(&stream->req);
2589 channel_shutr_now(&stream->res);
2590 stream->task->nice = 1024;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002591 if (!(stream->flags & SF_ERR_MASK))
Willy Tarreau87b09662015-04-03 00:22:06 +02002592 stream->flags |= why;
2593 task_wakeup(stream->task, TASK_WOKEN_OTHER);
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002594}
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02002595
Willy Tarreau5484d582019-05-22 09:33:03 +02002596/* Appends a dump of the state of stream <s> into buffer <buf> which must have
2597 * preliminary be prepared by its caller, with each line prepended by prefix
2598 * <pfx>, and each line terminated by character <eol>.
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002599 */
Willy Tarreau5484d582019-05-22 09:33:03 +02002600void stream_dump(struct buffer *buf, const struct stream *s, const char *pfx, char eol)
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002601{
2602 const struct conn_stream *csf, *csb;
2603 const struct connection *cof, *cob;
2604 const struct appctx *acf, *acb;
2605 const struct server *srv;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002606 const char *src = "unknown";
2607 const char *dst = "unknown";
2608 char pn[INET6_ADDRSTRLEN];
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002609 const struct channel *req, *res;
2610 const struct stream_interface *si_f, *si_b;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002611
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002612 if (!s) {
Willy Tarreau5484d582019-05-22 09:33:03 +02002613 chunk_appendf(buf, "%sstrm=%p%c", pfx, s, eol);
2614 return;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002615 }
2616
Willy Tarreau5484d582019-05-22 09:33:03 +02002617 if (s->obj_type != OBJ_TYPE_STREAM) {
2618 chunk_appendf(buf, "%sstrm=%p [invalid type=%d(%s)]%c",
2619 pfx, s, s->obj_type, obj_type_name(&s->obj_type), eol);
2620 return;
2621 }
2622
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002623 si_f = &s->si[0];
2624 si_b = &s->si[1];
2625 req = &s->req;
2626 res = &s->res;
2627
2628 csf = objt_cs(si_f->end);
2629 cof = cs_conn(csf);
2630 acf = objt_appctx(si_f->end);
Willy Tarreau71e34c12019-07-17 15:07:06 +02002631 if (cof && cof->src && addr_to_str(cof->src, pn, sizeof(pn)) >= 0)
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002632 src = pn;
2633 else if (acf)
2634 src = acf->applet->name;
2635
2636 csb = objt_cs(si_b->end);
2637 cob = cs_conn(csb);
2638 acb = objt_appctx(si_b->end);
2639 srv = objt_server(s->target);
2640 if (srv)
2641 dst = srv->id;
2642 else if (acb)
2643 dst = acb->applet->name;
2644
Willy Tarreau5484d582019-05-22 09:33:03 +02002645 chunk_appendf(buf,
2646 "%sstrm=%p src=%s fe=%s be=%s dst=%s%c"
2647 "%srqf=%x rqa=%x rpf=%x rpa=%x sif=%s,%x sib=%s,%x%c"
2648 "%saf=%p,%u csf=%p,%x%c"
2649 "%sab=%p,%u csb=%p,%x%c"
2650 "%scof=%p,%x:%s(%p)/%s(%p)/%s(%d)%c"
2651 "%scob=%p,%x:%s(%p)/%s(%p)/%s(%d)%c"
2652 "",
2653 pfx, s, src, s->sess->fe->id, s->be->id, dst, eol,
2654 pfx, req->flags, req->analysers, res->flags, res->analysers,
2655 si_state_str(si_f->state), si_f->flags,
2656 si_state_str(si_b->state), si_b->flags, eol,
2657 pfx, acf, acf ? acf->st0 : 0, csf, csf ? csf->flags : 0, eol,
2658 pfx, acb, acb ? acb->st0 : 0, csb, csb ? csb->flags : 0, eol,
2659 pfx, cof, cof ? cof->flags : 0, conn_get_mux_name(cof), cof?cof->ctx:0, conn_get_xprt_name(cof),
2660 cof ? cof->xprt_ctx : 0, conn_get_ctrl_name(cof), cof ? cof->handle.fd : 0, eol,
2661 pfx, cob, cob ? cob->flags : 0, conn_get_mux_name(cob), cob?cob->ctx:0, conn_get_xprt_name(cob),
2662 cob ? cob->xprt_ctx : 0, conn_get_ctrl_name(cob), cob ? cob->handle.fd : 0, eol);
2663}
2664
2665/* dumps an error message for type <type> at ptr <ptr> related to stream <s>,
Willy Tarreaub106ce12019-05-22 08:57:01 +02002666 * having reached loop rate <rate>, then aborts hoping to retrieve a core.
Willy Tarreau5484d582019-05-22 09:33:03 +02002667 */
2668void stream_dump_and_crash(enum obj_type *obj, int rate)
2669{
2670 const struct stream *s;
Willy Tarreau5484d582019-05-22 09:33:03 +02002671 char *msg = NULL;
2672 const void *ptr;
2673
2674 ptr = s = objt_stream(obj);
2675 if (!s) {
2676 const struct appctx *appctx = objt_appctx(obj);
2677 if (!appctx)
2678 return;
2679 ptr = appctx;
2680 s = si_strm(appctx->owner);
2681 if (!s)
2682 return;
2683 }
2684
Willy Tarreau5484d582019-05-22 09:33:03 +02002685 chunk_reset(&trash);
2686 stream_dump(&trash, s, "", ' ');
Willy Tarreau9753d612020-05-01 16:57:02 +02002687
2688 chunk_appendf(&trash, "filters={");
2689 if (HAS_FILTERS(s)) {
2690 struct filter *filter;
2691
2692 list_for_each_entry(filter, &s->strm_flt.filters, list) {
2693 if (filter->list.p != &s->strm_flt.filters)
2694 chunk_appendf(&trash, ", ");
2695 chunk_appendf(&trash, "%p=\"%s\"", filter, FLT_ID(filter));
2696 }
2697 }
2698 chunk_appendf(&trash, "}");
2699
Willy Tarreaub106ce12019-05-22 08:57:01 +02002700 memprintf(&msg,
2701 "A bogus %s [%p] is spinning at %d calls per second and refuses to die, "
2702 "aborting now! Please report this error to developers "
2703 "[%s]\n",
Willy Tarreau5484d582019-05-22 09:33:03 +02002704 obj_type_name(obj), ptr, rate, trash.area);
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002705
2706 ha_alert("%s", msg);
2707 send_log(NULL, LOG_EMERG, "%s", msg);
2708 abort();
2709}
2710
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002711/* Generates a unique ID based on the given <format>, stores it in the given <strm> and
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002712 * returns the unique ID.
2713
2714 * If this function fails to allocate memory IST_NULL is returned.
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002715 *
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002716 * If an ID is already stored within the stream nothing happens existing unique ID is
2717 * returned.
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002718 */
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002719struct ist stream_generate_unique_id(struct stream *strm, struct list *format)
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002720{
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002721 if (isttest(strm->unique_id)) {
2722 return strm->unique_id;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002723 }
2724 else {
2725 char *unique_id;
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002726 int length;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002727 if ((unique_id = pool_alloc(pool_head_uniqueid)) == NULL)
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002728 return IST_NULL;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002729
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002730 length = build_logline(strm, unique_id, UNIQUEID_LEN, format);
2731 strm->unique_id = ist2(unique_id, length);
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002732
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002733 return strm->unique_id;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002734 }
2735}
2736
Willy Tarreau8b22a712010-06-18 17:46:06 +02002737/************************************************************************/
2738/* All supported ACL keywords must be declared here. */
2739/************************************************************************/
2740
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02002741/* 0=OK, <0=Alert, >0=Warning */
2742static enum act_parse_ret stream_parse_use_service(const char **args, int *cur_arg,
2743 struct proxy *px, struct act_rule *rule,
2744 char **err)
2745{
2746 struct action_kw *kw;
2747
2748 /* Check if the service name exists. */
2749 if (*(args[*cur_arg]) == 0) {
2750 memprintf(err, "'%s' expects a service name.", args[0]);
Thierry FOURNIER337eae12015-11-26 19:48:04 +01002751 return ACT_RET_PRS_ERR;
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02002752 }
2753
2754 /* lookup for keyword corresponding to a service. */
2755 kw = action_lookup(&service_keywords, args[*cur_arg]);
2756 if (!kw) {
2757 memprintf(err, "'%s' unknown service name.", args[1]);
2758 return ACT_RET_PRS_ERR;
2759 }
2760 (*cur_arg)++;
2761
2762 /* executes specific rule parser. */
2763 rule->kw = kw;
2764 if (kw->parse((const char **)args, cur_arg, px, rule, err) == ACT_RET_PRS_ERR)
2765 return ACT_RET_PRS_ERR;
2766
2767 /* Register processing function. */
2768 rule->action_ptr = process_use_service;
2769 rule->action = ACT_CUSTOM;
2770
2771 return ACT_RET_PRS_OK;
2772}
2773
2774void service_keywords_register(struct action_kw_list *kw_list)
2775{
2776 LIST_ADDQ(&service_keywords, &kw_list->list);
2777}
2778
Thierry Fournier87e53992020-11-28 19:32:14 +01002779struct action_kw *service_find(const char *kw)
2780{
2781 return action_lookup(&service_keywords, kw);
2782}
2783
Willy Tarreau679bba12019-03-19 08:08:10 +01002784/* Lists the known services on <out> */
2785void list_services(FILE *out)
2786{
2787 struct action_kw_list *kw_list;
2788 int found = 0;
2789 int i;
2790
2791 fprintf(out, "Available services :");
2792 list_for_each_entry(kw_list, &service_keywords, list) {
2793 for (i = 0; kw_list->kw[i].kw != NULL; i++) {
Willy Tarreau679bba12019-03-19 08:08:10 +01002794 found = 1;
William Dauchyaabde712021-01-09 17:26:20 +01002795 fprintf(out, " %s", kw_list->kw[i].kw);
Willy Tarreau679bba12019-03-19 08:08:10 +01002796 }
2797 }
2798 if (!found)
2799 fprintf(out, " none\n");
2800}
William Lallemand4c5b4d52016-11-21 08:51:11 +01002801
2802/* This function dumps a complete stream state onto the stream interface's
2803 * read buffer. The stream has to be set in strm. It returns 0 if the output
2804 * buffer is full and it needs to be called again, otherwise non-zero. It is
2805 * designed to be called from stats_dump_strm_to_buffer() below.
2806 */
2807static int stats_dump_full_strm_to_buffer(struct stream_interface *si, struct stream *strm)
2808{
2809 struct appctx *appctx = __objt_appctx(si->end);
2810 struct tm tm;
2811 extern const char *monthname[12];
2812 char pn[INET6_ADDRSTRLEN];
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002813 struct conn_stream *cs;
William Lallemand4c5b4d52016-11-21 08:51:11 +01002814 struct connection *conn;
2815 struct appctx *tmpctx;
2816
2817 chunk_reset(&trash);
2818
2819 if (appctx->ctx.sess.section > 0 && appctx->ctx.sess.uid != strm->uniq_id) {
2820 /* stream changed, no need to go any further */
2821 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
Willy Tarreaue6e52362019-01-04 17:42:57 +01002822 if (ci_putchk(si_ic(si), &trash) == -1)
2823 goto full;
2824 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01002825 }
2826
2827 switch (appctx->ctx.sess.section) {
2828 case 0: /* main status of the stream */
2829 appctx->ctx.sess.uid = strm->uniq_id;
2830 appctx->ctx.sess.section = 1;
2831 /* fall through */
2832
2833 case 1:
2834 get_localtime(strm->logs.accept_date.tv_sec, &tm);
2835 chunk_appendf(&trash,
2836 "%p: [%02d/%s/%04d:%02d:%02d:%02d.%06d] id=%u proto=%s",
2837 strm,
2838 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
2839 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(strm->logs.accept_date.tv_usec),
2840 strm->uniq_id,
Willy Tarreaub7436612020-08-28 19:51:44 +02002841 strm_li(strm) ? strm_li(strm)->rx.proto->name : "?");
William Lallemand4c5b4d52016-11-21 08:51:11 +01002842
2843 conn = objt_conn(strm_orig(strm));
Willy Tarreau71e34c12019-07-17 15:07:06 +02002844 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002845 case AF_INET:
2846 case AF_INET6:
2847 chunk_appendf(&trash, " source=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002848 pn, get_host_port(conn->src));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002849 break;
2850 case AF_UNIX:
2851 chunk_appendf(&trash, " source=unix:%d\n", strm_li(strm)->luid);
2852 break;
2853 default:
2854 /* no more information to print right now */
2855 chunk_appendf(&trash, "\n");
2856 break;
2857 }
2858
2859 chunk_appendf(&trash,
Willy Tarreauadf7a152019-01-07 10:10:07 +01002860 " flags=0x%x, conn_retries=%d, srv_conn=%p, pend_pos=%p waiting=%d\n",
2861 strm->flags, strm->si[1].conn_retries, strm->srv_conn, strm->pend_pos,
Willy Tarreau21046592020-02-26 10:39:36 +01002862 MT_LIST_ADDED(&strm->buffer_wait.list));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002863
2864 chunk_appendf(&trash,
2865 " frontend=%s (id=%u mode=%s), listener=%s (id=%u)",
2866 strm_fe(strm)->id, strm_fe(strm)->uuid, strm_fe(strm)->mode ? "http" : "tcp",
2867 strm_li(strm) ? strm_li(strm)->name ? strm_li(strm)->name : "?" : "?",
2868 strm_li(strm) ? strm_li(strm)->luid : 0);
2869
Willy Tarreau71e34c12019-07-17 15:07:06 +02002870 switch (conn && conn_get_dst(conn) ? addr_to_str(conn->dst, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002871 case AF_INET:
2872 case AF_INET6:
2873 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002874 pn, get_host_port(conn->dst));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002875 break;
2876 case AF_UNIX:
2877 chunk_appendf(&trash, " addr=unix:%d\n", strm_li(strm)->luid);
2878 break;
2879 default:
2880 /* no more information to print right now */
2881 chunk_appendf(&trash, "\n");
2882 break;
2883 }
2884
2885 if (strm->be->cap & PR_CAP_BE)
2886 chunk_appendf(&trash,
2887 " backend=%s (id=%u mode=%s)",
2888 strm->be->id,
2889 strm->be->uuid, strm->be->mode ? "http" : "tcp");
2890 else
2891 chunk_appendf(&trash, " backend=<NONE> (id=-1 mode=-)");
2892
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002893 cs = objt_cs(strm->si[1].end);
2894 conn = cs_conn(cs);
2895
Willy Tarreau71e34c12019-07-17 15:07:06 +02002896 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002897 case AF_INET:
2898 case AF_INET6:
2899 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002900 pn, get_host_port(conn->src));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002901 break;
2902 case AF_UNIX:
2903 chunk_appendf(&trash, " addr=unix\n");
2904 break;
2905 default:
2906 /* no more information to print right now */
2907 chunk_appendf(&trash, "\n");
2908 break;
2909 }
2910
2911 if (strm->be->cap & PR_CAP_BE)
2912 chunk_appendf(&trash,
2913 " server=%s (id=%u)",
2914 objt_server(strm->target) ? objt_server(strm->target)->id : "<none>",
2915 objt_server(strm->target) ? objt_server(strm->target)->puid : 0);
2916 else
2917 chunk_appendf(&trash, " server=<NONE> (id=-1)");
2918
Willy Tarreau71e34c12019-07-17 15:07:06 +02002919 switch (conn && conn_get_dst(conn) ? addr_to_str(conn->dst, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002920 case AF_INET:
2921 case AF_INET6:
2922 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002923 pn, get_host_port(conn->dst));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002924 break;
2925 case AF_UNIX:
2926 chunk_appendf(&trash, " addr=unix\n");
2927 break;
2928 default:
2929 /* no more information to print right now */
2930 chunk_appendf(&trash, "\n");
2931 break;
2932 }
2933
2934 chunk_appendf(&trash,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02002935 " task=%p (state=0x%02x nice=%d calls=%u rate=%u exp=%s tmask=0x%lx%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002936 strm->task,
2937 strm->task->state,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02002938 strm->task->nice, strm->task->calls, read_freq_ctr(&strm->call_rate),
William Lallemand4c5b4d52016-11-21 08:51:11 +01002939 strm->task->expire ?
2940 tick_is_expired(strm->task->expire, now_ms) ? "<PAST>" :
2941 human_time(TICKS_TO_MS(strm->task->expire - now_ms),
2942 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Fauletf0205062017-11-15 20:56:43 +01002943 strm->task->thread_mask,
William Lallemand4c5b4d52016-11-21 08:51:11 +01002944 task_in_rq(strm->task) ? ", running" : "");
2945
2946 chunk_appendf(&trash,
2947 " age=%s)\n",
2948 human_time(now.tv_sec - strm->logs.accept_date.tv_sec, 1));
2949
2950 if (strm->txn)
2951 chunk_appendf(&trash,
Christopher Fauletbcac7862019-07-17 10:46:50 +02002952 " 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 +01002953 strm->txn, strm->txn->flags, strm->txn->meth, strm->txn->status,
Willy Tarreau7778b592019-01-07 10:38:10 +01002954 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 +02002955 strm->txn->req.flags, strm->txn->rsp.flags);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002956
2957 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01002958 " 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 +01002959 &strm->si[0],
2960 si_state_str(strm->si[0].state),
2961 strm->si[0].flags,
2962 obj_type_name(strm->si[0].end),
2963 obj_base_ptr(strm->si[0].end),
2964 strm->si[0].exp ?
2965 tick_is_expired(strm->si[0].exp, now_ms) ? "<PAST>" :
2966 human_time(TICKS_TO_MS(strm->si[0].exp - now_ms),
2967 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01002968 strm->si[0].err_type, strm->si[0].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002969
2970 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01002971 " 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 +01002972 &strm->si[1],
2973 si_state_str(strm->si[1].state),
2974 strm->si[1].flags,
2975 obj_type_name(strm->si[1].end),
2976 obj_base_ptr(strm->si[1].end),
2977 strm->si[1].exp ?
2978 tick_is_expired(strm->si[1].exp, now_ms) ? "<PAST>" :
2979 human_time(TICKS_TO_MS(strm->si[1].exp - now_ms),
2980 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01002981 strm->si[1].err_type, strm->si[1].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002982
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002983 if ((cs = objt_cs(strm->si[0].end)) != NULL) {
2984 conn = cs->conn;
2985
William Lallemand4c5b4d52016-11-21 08:51:11 +01002986 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02002987 " co0=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002988 conn,
2989 conn_get_ctrl_name(conn),
2990 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02002991 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002992 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01002993 obj_type_name(conn->target),
2994 obj_base_ptr(conn->target));
2995
2996 chunk_appendf(&trash,
Willy Tarreau76913d32019-08-30 14:33:11 +02002997 " flags=0x%08x fd=%d fd.state=%02x updt=%d fd.tmask=0x%lx\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002998 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02002999 conn->handle.fd,
3000 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01003001 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01003002 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01003003
3004 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003005 }
3006 else if ((tmpctx = objt_appctx(strm->si[0].end)) != NULL) {
3007 chunk_appendf(&trash,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003008 " 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 +01003009 tmpctx,
3010 tmpctx->st0,
3011 tmpctx->st1,
3012 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01003013 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02003014 tmpctx->thread_mask,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003015 tmpctx->t->nice, tmpctx->t->calls, read_freq_ctr(&tmpctx->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003016 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003017 }
3018
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003019 if ((cs = objt_cs(strm->si[1].end)) != NULL) {
3020 conn = cs->conn;
3021
William Lallemand4c5b4d52016-11-21 08:51:11 +01003022 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02003023 " co1=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003024 conn,
3025 conn_get_ctrl_name(conn),
3026 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02003027 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003028 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003029 obj_type_name(conn->target),
3030 obj_base_ptr(conn->target));
3031
3032 chunk_appendf(&trash,
Willy Tarreau76913d32019-08-30 14:33:11 +02003033 " flags=0x%08x fd=%d fd.state=%02x updt=%d fd.tmask=0x%lx\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003034 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003035 conn->handle.fd,
3036 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01003037 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01003038 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01003039
3040 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003041 }
3042 else if ((tmpctx = objt_appctx(strm->si[1].end)) != NULL) {
3043 chunk_appendf(&trash,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003044 " 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 +01003045 tmpctx,
3046 tmpctx->st0,
3047 tmpctx->st1,
3048 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01003049 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02003050 tmpctx->thread_mask,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003051 tmpctx->t->nice, tmpctx->t->calls, read_freq_ctr(&tmpctx->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003052 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003053 }
3054
3055 chunk_appendf(&trash,
3056 " req=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
3057 " an_exp=%s",
3058 &strm->req,
3059 strm->req.flags, strm->req.analysers,
3060 strm->req.pipe ? strm->req.pipe->data : 0,
3061 strm->req.to_forward, strm->req.total,
3062 strm->req.analyse_exp ?
3063 human_time(TICKS_TO_MS(strm->req.analyse_exp - now_ms),
3064 TICKS_TO_MS(1000)) : "<NEVER>");
3065
3066 chunk_appendf(&trash,
3067 " rex=%s",
3068 strm->req.rex ?
3069 human_time(TICKS_TO_MS(strm->req.rex - now_ms),
3070 TICKS_TO_MS(1000)) : "<NEVER>");
3071
3072 chunk_appendf(&trash,
3073 " wex=%s\n"
Christopher Fauletbcac7862019-07-17 10:46:50 +02003074 " buf=%p data=%p o=%u p=%u i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003075 strm->req.wex ?
3076 human_time(TICKS_TO_MS(strm->req.wex - now_ms),
3077 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003078 &strm->req.buf,
3079 b_orig(&strm->req.buf), (unsigned int)co_data(&strm->req),
Christopher Fauletbcac7862019-07-17 10:46:50 +02003080 (unsigned int)ci_head_ofs(&strm->req), (unsigned int)ci_data(&strm->req),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003081 (unsigned int)strm->req.buf.size);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003082
Christopher Fauletb9af8812019-01-04 14:30:44 +01003083 if (IS_HTX_STRM(strm)) {
3084 struct htx *htx = htxbuf(&strm->req.buf);
3085
3086 chunk_appendf(&trash,
Willy Tarreaub84e67f2019-01-07 10:01:34 +01003087 " htx=%p flags=0x%x size=%u data=%u used=%u wrap=%s extra=%llu\n",
Christopher Faulet192c6a22019-06-11 16:32:24 +02003088 htx, htx->flags, htx->size, htx->data, htx_nbblks(htx),
Christopher Faulet28f29c72019-04-30 17:55:45 +02003089 (htx->tail >= htx->head) ? "NO" : "YES",
Christopher Fauletb9af8812019-01-04 14:30:44 +01003090 (unsigned long long)htx->extra);
3091 }
3092
William Lallemand4c5b4d52016-11-21 08:51:11 +01003093 chunk_appendf(&trash,
3094 " res=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
3095 " an_exp=%s",
3096 &strm->res,
3097 strm->res.flags, strm->res.analysers,
3098 strm->res.pipe ? strm->res.pipe->data : 0,
3099 strm->res.to_forward, strm->res.total,
3100 strm->res.analyse_exp ?
3101 human_time(TICKS_TO_MS(strm->res.analyse_exp - now_ms),
3102 TICKS_TO_MS(1000)) : "<NEVER>");
3103
3104 chunk_appendf(&trash,
3105 " rex=%s",
3106 strm->res.rex ?
3107 human_time(TICKS_TO_MS(strm->res.rex - now_ms),
3108 TICKS_TO_MS(1000)) : "<NEVER>");
3109
3110 chunk_appendf(&trash,
3111 " wex=%s\n"
Christopher Fauletbcac7862019-07-17 10:46:50 +02003112 " buf=%p data=%p o=%u p=%u i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003113 strm->res.wex ?
3114 human_time(TICKS_TO_MS(strm->res.wex - now_ms),
3115 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003116 &strm->res.buf,
3117 b_orig(&strm->res.buf), (unsigned int)co_data(&strm->res),
Christopher Fauletbcac7862019-07-17 10:46:50 +02003118 (unsigned int)ci_head_ofs(&strm->res), (unsigned int)ci_data(&strm->res),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003119 (unsigned int)strm->res.buf.size);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003120
Christopher Fauletb9af8812019-01-04 14:30:44 +01003121 if (IS_HTX_STRM(strm)) {
3122 struct htx *htx = htxbuf(&strm->res.buf);
3123
3124 chunk_appendf(&trash,
3125 " htx=%p flags=0x%x size=%u data=%u used=%u wrap=%s extra=%llu\n",
Christopher Faulet192c6a22019-06-11 16:32:24 +02003126 htx, htx->flags, htx->size, htx->data, htx_nbblks(htx),
Christopher Faulet28f29c72019-04-30 17:55:45 +02003127 (htx->tail >= htx->head) ? "NO" : "YES",
Christopher Fauletb9af8812019-01-04 14:30:44 +01003128 (unsigned long long)htx->extra);
3129 }
3130
Willy Tarreaue6e52362019-01-04 17:42:57 +01003131 if (ci_putchk(si_ic(si), &trash) == -1)
3132 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003133
3134 /* use other states to dump the contents */
3135 }
3136 /* end of dump */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003137 done:
William Lallemand4c5b4d52016-11-21 08:51:11 +01003138 appctx->ctx.sess.uid = 0;
3139 appctx->ctx.sess.section = 0;
3140 return 1;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003141 full:
3142 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003143}
3144
3145
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003146static int cli_parse_show_sess(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemand4c5b4d52016-11-21 08:51:11 +01003147{
William Lallemand4c5b4d52016-11-21 08:51:11 +01003148 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
3149 return 1;
3150
3151 if (*args[2] && strcmp(args[2], "all") == 0)
3152 appctx->ctx.sess.target = (void *)-1;
3153 else if (*args[2])
3154 appctx->ctx.sess.target = (void *)strtoul(args[2], NULL, 0);
3155 else
3156 appctx->ctx.sess.target = NULL;
3157 appctx->ctx.sess.section = 0; /* start with stream status */
3158 appctx->ctx.sess.pos = 0;
3159
Willy Tarreauc6e7a1b2020-06-28 01:24:12 +02003160 /* we need to put an end marker into the streams list. We're just moving
3161 * ourselves there, so that once we found ourselves we know we've reached
3162 * the end. Without this we can run forever if new streams arrive faster
3163 * than we can dump them.
3164 */
3165 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
3166 LIST_DEL(&si_strm(appctx->owner)->list);
3167 LIST_ADDQ(&streams, &si_strm(appctx->owner)->list);
3168 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003169 return 0;
3170}
3171
3172/* This function dumps all streams' states onto the stream interface's
3173 * read buffer. It returns 0 if the output buffer is full and it needs
Willy Tarreaue6e52362019-01-04 17:42:57 +01003174 * to be called again, otherwise non-zero. It proceeds in an isolated
3175 * thread so there is no thread safety issue here.
William Lallemand4c5b4d52016-11-21 08:51:11 +01003176 */
3177static int cli_io_handler_dump_sess(struct appctx *appctx)
3178{
3179 struct stream_interface *si = appctx->owner;
3180 struct connection *conn;
3181
Willy Tarreaue6e52362019-01-04 17:42:57 +01003182 thread_isolate();
3183
William Lallemand4c5b4d52016-11-21 08:51:11 +01003184 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW))) {
3185 /* If we're forced to shut down, we might have to remove our
3186 * reference to the last stream being dumped.
3187 */
3188 if (appctx->st2 == STAT_ST_LIST) {
3189 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users)) {
3190 LIST_DEL(&appctx->ctx.sess.bref.users);
3191 LIST_INIT(&appctx->ctx.sess.bref.users);
3192 }
3193 }
Willy Tarreaue6e52362019-01-04 17:42:57 +01003194 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003195 }
3196
3197 chunk_reset(&trash);
3198
3199 switch (appctx->st2) {
3200 case STAT_ST_INIT:
3201 /* the function had not been called yet, let's prepare the
3202 * buffer for a response. We initialize the current stream
3203 * pointer to the first in the global list. When a target
3204 * stream is being destroyed, it is responsible for updating
3205 * this pointer. We know we have reached the end when this
3206 * pointer points back to the head of the streams list.
3207 */
3208 LIST_INIT(&appctx->ctx.sess.bref.users);
3209 appctx->ctx.sess.bref.ref = streams.n;
3210 appctx->st2 = STAT_ST_LIST;
3211 /* fall through */
3212
3213 case STAT_ST_LIST:
3214 /* first, let's detach the back-ref from a possible previous stream */
3215 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users)) {
3216 LIST_DEL(&appctx->ctx.sess.bref.users);
3217 LIST_INIT(&appctx->ctx.sess.bref.users);
3218 }
3219
Willy Tarreauc6e7a1b2020-06-28 01:24:12 +02003220 /* and start from where we stopped, never going further than ourselves */
3221 while (appctx->ctx.sess.bref.ref != si_strm(appctx->owner)->list.n) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003222 char pn[INET6_ADDRSTRLEN];
3223 struct stream *curr_strm;
3224
3225 curr_strm = LIST_ELEM(appctx->ctx.sess.bref.ref, struct stream *, list);
3226
3227 if (appctx->ctx.sess.target) {
3228 if (appctx->ctx.sess.target != (void *)-1 && appctx->ctx.sess.target != curr_strm)
3229 goto next_sess;
3230
3231 LIST_ADDQ(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
3232 /* call the proper dump() function and return if we're missing space */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003233 if (!stats_dump_full_strm_to_buffer(si, curr_strm))
3234 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003235
3236 /* stream dump complete */
3237 LIST_DEL(&appctx->ctx.sess.bref.users);
3238 LIST_INIT(&appctx->ctx.sess.bref.users);
3239 if (appctx->ctx.sess.target != (void *)-1) {
3240 appctx->ctx.sess.target = NULL;
3241 break;
3242 }
3243 else
3244 goto next_sess;
3245 }
3246
3247 chunk_appendf(&trash,
3248 "%p: proto=%s",
3249 curr_strm,
Willy Tarreaub7436612020-08-28 19:51:44 +02003250 strm_li(curr_strm) ? strm_li(curr_strm)->rx.proto->name : "?");
William Lallemand4c5b4d52016-11-21 08:51:11 +01003251
3252 conn = objt_conn(strm_orig(curr_strm));
Willy Tarreau71e34c12019-07-17 15:07:06 +02003253 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003254 case AF_INET:
3255 case AF_INET6:
3256 chunk_appendf(&trash,
3257 " src=%s:%d fe=%s be=%s srv=%s",
3258 pn,
Willy Tarreau71e34c12019-07-17 15:07:06 +02003259 get_host_port(conn->src),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003260 strm_fe(curr_strm)->id,
3261 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
3262 objt_server(curr_strm->target) ? objt_server(curr_strm->target)->id : "<none>"
3263 );
3264 break;
3265 case AF_UNIX:
3266 chunk_appendf(&trash,
3267 " src=unix:%d fe=%s be=%s srv=%s",
3268 strm_li(curr_strm)->luid,
3269 strm_fe(curr_strm)->id,
3270 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
3271 objt_server(curr_strm->target) ? objt_server(curr_strm->target)->id : "<none>"
3272 );
3273 break;
3274 }
3275
3276 chunk_appendf(&trash,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003277 " ts=%02x age=%s calls=%u rate=%u cpu=%llu lat=%llu",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003278 curr_strm->task->state,
3279 human_time(now.tv_sec - curr_strm->logs.tv_accept.tv_sec, 1),
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003280 curr_strm->task->calls, read_freq_ctr(&curr_strm->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003281 (unsigned long long)curr_strm->task->cpu_time, (unsigned long long)curr_strm->task->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003282
3283 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003284 " rq[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003285 curr_strm->req.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003286 (unsigned int)ci_data(&curr_strm->req),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003287 curr_strm->req.analysers,
3288 curr_strm->req.rex ?
3289 human_time(TICKS_TO_MS(curr_strm->req.rex - now_ms),
3290 TICKS_TO_MS(1000)) : "");
3291
3292 chunk_appendf(&trash,
3293 ",wx=%s",
3294 curr_strm->req.wex ?
3295 human_time(TICKS_TO_MS(curr_strm->req.wex - now_ms),
3296 TICKS_TO_MS(1000)) : "");
3297
3298 chunk_appendf(&trash,
3299 ",ax=%s]",
3300 curr_strm->req.analyse_exp ?
3301 human_time(TICKS_TO_MS(curr_strm->req.analyse_exp - now_ms),
3302 TICKS_TO_MS(1000)) : "");
3303
3304 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003305 " rp[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003306 curr_strm->res.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003307 (unsigned int)ci_data(&curr_strm->res),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003308 curr_strm->res.analysers,
3309 curr_strm->res.rex ?
3310 human_time(TICKS_TO_MS(curr_strm->res.rex - now_ms),
3311 TICKS_TO_MS(1000)) : "");
3312
3313 chunk_appendf(&trash,
3314 ",wx=%s",
3315 curr_strm->res.wex ?
3316 human_time(TICKS_TO_MS(curr_strm->res.wex - now_ms),
3317 TICKS_TO_MS(1000)) : "");
3318
3319 chunk_appendf(&trash,
3320 ",ax=%s]",
3321 curr_strm->res.analyse_exp ?
3322 human_time(TICKS_TO_MS(curr_strm->res.analyse_exp - now_ms),
3323 TICKS_TO_MS(1000)) : "");
3324
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003325 conn = cs_conn(objt_cs(curr_strm->si[0].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003326 chunk_appendf(&trash,
3327 " s0=[%d,%1xh,fd=%d,ex=%s]",
3328 curr_strm->si[0].state,
3329 curr_strm->si[0].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003330 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003331 curr_strm->si[0].exp ?
3332 human_time(TICKS_TO_MS(curr_strm->si[0].exp - now_ms),
3333 TICKS_TO_MS(1000)) : "");
3334
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003335 conn = cs_conn(objt_cs(curr_strm->si[1].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003336 chunk_appendf(&trash,
3337 " s1=[%d,%1xh,fd=%d,ex=%s]",
3338 curr_strm->si[1].state,
3339 curr_strm->si[1].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003340 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003341 curr_strm->si[1].exp ?
3342 human_time(TICKS_TO_MS(curr_strm->si[1].exp - now_ms),
3343 TICKS_TO_MS(1000)) : "");
3344
3345 chunk_appendf(&trash,
3346 " exp=%s",
3347 curr_strm->task->expire ?
3348 human_time(TICKS_TO_MS(curr_strm->task->expire - now_ms),
3349 TICKS_TO_MS(1000)) : "");
3350 if (task_in_rq(curr_strm->task))
3351 chunk_appendf(&trash, " run(nice=%d)", curr_strm->task->nice);
3352
3353 chunk_appendf(&trash, "\n");
3354
Willy Tarreau06d80a92017-10-19 14:32:15 +02003355 if (ci_putchk(si_ic(si), &trash) == -1) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003356 /* let's try again later from this stream. We add ourselves into
3357 * this stream's users so that it can remove us upon termination.
3358 */
William Lallemand4c5b4d52016-11-21 08:51:11 +01003359 LIST_ADDQ(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
Willy Tarreaue6e52362019-01-04 17:42:57 +01003360 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003361 }
3362
3363 next_sess:
3364 appctx->ctx.sess.bref.ref = curr_strm->list.n;
3365 }
3366
3367 if (appctx->ctx.sess.target && appctx->ctx.sess.target != (void *)-1) {
3368 /* specified stream not found */
3369 if (appctx->ctx.sess.section > 0)
3370 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
3371 else
3372 chunk_appendf(&trash, "Session not found.\n");
3373
Willy Tarreaue6e52362019-01-04 17:42:57 +01003374 if (ci_putchk(si_ic(si), &trash) == -1)
3375 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003376
3377 appctx->ctx.sess.target = NULL;
3378 appctx->ctx.sess.uid = 0;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003379 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003380 }
William Lallemand4c5b4d52016-11-21 08:51:11 +01003381 /* fall through */
3382
3383 default:
3384 appctx->st2 = STAT_ST_FIN;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003385 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003386 }
Willy Tarreaue6e52362019-01-04 17:42:57 +01003387 done:
3388 thread_release();
3389 return 1;
3390 full:
3391 thread_release();
3392 si_rx_room_blk(si);
3393 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003394}
3395
3396static void cli_release_show_sess(struct appctx *appctx)
3397{
3398 if (appctx->st2 == STAT_ST_LIST) {
Willy Tarreau7ce3f092017-11-10 16:24:41 +01003399 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003400 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users))
3401 LIST_DEL(&appctx->ctx.sess.bref.users);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003402 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003403 }
3404}
3405
Willy Tarreau61b65212016-11-24 11:09:25 +01003406/* Parses the "shutdown session" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003407static int cli_parse_shutdown_session(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau61b65212016-11-24 11:09:25 +01003408{
3409 struct stream *strm, *ptr;
3410
3411 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3412 return 1;
3413
Willy Tarreau9d008692019-08-09 11:21:01 +02003414 if (!*args[2])
3415 return cli_err(appctx, "Session pointer expected (use 'show sess').\n");
Willy Tarreau61b65212016-11-24 11:09:25 +01003416
3417 ptr = (void *)strtoul(args[2], NULL, 0);
3418
3419 /* first, look for the requested stream in the stream table */
3420 list_for_each_entry(strm, &streams, list) {
3421 if (strm == ptr)
3422 break;
3423 }
3424
3425 /* do we have the stream ? */
Willy Tarreau9d008692019-08-09 11:21:01 +02003426 if (strm != ptr)
3427 return cli_err(appctx, "No such session (use 'show sess').\n");
Willy Tarreau61b65212016-11-24 11:09:25 +01003428
3429 stream_shutdown(strm, SF_ERR_KILLED);
3430 return 1;
3431}
3432
Willy Tarreau4e46b622016-11-23 16:50:48 +01003433/* Parses the "shutdown session server" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003434static int cli_parse_shutdown_sessions_server(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau4e46b622016-11-23 16:50:48 +01003435{
3436 struct server *sv;
Willy Tarreau4e46b622016-11-23 16:50:48 +01003437
3438 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3439 return 1;
3440
3441 sv = cli_find_server(appctx, args[3]);
3442 if (!sv)
3443 return 1;
3444
3445 /* kill all the stream that are on this server */
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003446 HA_SPIN_LOCK(SERVER_LOCK, &sv->lock);
Willy Tarreaud9e26a72019-11-14 16:37:16 +01003447 srv_shutdown_streams(sv, SF_ERR_KILLED);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003448 HA_SPIN_UNLOCK(SERVER_LOCK, &sv->lock);
Willy Tarreau4e46b622016-11-23 16:50:48 +01003449 return 1;
3450}
3451
William Lallemand4c5b4d52016-11-21 08:51:11 +01003452/* register cli keywords */
3453static struct cli_kw_list cli_kws = {{ },{
3454 { { "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 +01003455 { { "shutdown", "session", NULL }, "shutdown session : kill a specific session", cli_parse_shutdown_session, NULL, NULL },
Willy Tarreau4e46b622016-11-23 16:50:48 +01003456 { { "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 +01003457 {{},}
3458}};
3459
Willy Tarreau0108d902018-11-25 19:14:37 +01003460INITCALL1(STG_REGISTER, cli_register_kw, &cli_kws);
3461
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003462/* main configuration keyword registration. */
3463static struct action_kw_list stream_tcp_keywords = { ILH, {
3464 { "use-service", stream_parse_use_service },
3465 { /* END */ }
3466}};
3467
Willy Tarreau0108d902018-11-25 19:14:37 +01003468INITCALL1(STG_REGISTER, tcp_req_cont_keywords_register, &stream_tcp_keywords);
3469
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003470static struct action_kw_list stream_http_keywords = { ILH, {
3471 { "use-service", stream_parse_use_service },
3472 { /* END */ }
3473}};
3474
Willy Tarreau0108d902018-11-25 19:14:37 +01003475INITCALL1(STG_REGISTER, http_req_keywords_register, &stream_http_keywords);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003476
Amaury Denoyellef7719a22020-12-10 13:43:58 +01003477static int smp_fetch_cur_server_timeout(const struct arg *args, struct sample *smp, const char *km, void *private)
3478{
3479 smp->flags = SMP_F_VOL_TXN;
3480 smp->data.type = SMP_T_SINT;
3481 if (!smp->strm)
3482 return 0;
3483
3484 smp->data.u.sint = TICKS_TO_MS(smp->strm->res.rto);
3485 return 1;
3486}
3487
3488static int smp_fetch_cur_tunnel_timeout(const struct arg *args, struct sample *smp, const char *km, void *private)
3489{
3490 smp->flags = SMP_F_VOL_TXN;
3491 smp->data.type = SMP_T_SINT;
3492 if (!smp->strm)
3493 return 0;
3494
3495 smp->data.u.sint = TICKS_TO_MS(smp->strm->tunnel_timeout);
3496 return 1;
3497}
3498
Amaury Denoyelle12bada52020-12-10 13:43:57 +01003499/* Note: must not be declared <const> as its list will be overwritten.
3500 * Please take care of keeping this list alphabetically sorted.
3501 */
3502static struct sample_fetch_kw_list smp_kws = {ILH, {
Amaury Denoyellef7719a22020-12-10 13:43:58 +01003503 { "cur_server_timeout", smp_fetch_cur_server_timeout, 0, NULL, SMP_T_SINT, SMP_USE_BKEND, },
3504 { "cur_tunnel_timeout", smp_fetch_cur_tunnel_timeout, 0, NULL, SMP_T_SINT, SMP_USE_BKEND, },
Amaury Denoyelle12bada52020-12-10 13:43:57 +01003505 { NULL, NULL, 0, 0, 0 },
3506}};
3507
3508INITCALL1(STG_REGISTER, sample_register_fetches, &smp_kws);
3509
Willy Tarreaubaaee002006-06-26 02:48:02 +02003510/*
3511 * Local variables:
3512 * c-indent-level: 8
3513 * c-basic-offset: 8
3514 * End:
3515 */