blob: 9394ac0a74ef91eb06d390acf8ba93d576d35d85 [file] [log] [blame]
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 Tarreau2741c8c2020-06-02 11:28:02 +020033#include <haproxy/dynbuf.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020034#include <haproxy/fd.h>
Willy Tarreauc7babd82020-06-04 21:29:29 +020035#include <haproxy/filters.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020036#include <haproxy/freq_ctr.h>
Willy Tarreau762d7a52020-06-04 11:23:07 +020037#include <haproxy/frontend.h>
Willy Tarreauf268ee82020-06-04 17:05:57 +020038#include <haproxy/global.h>
Willy Tarreau86416052020-06-04 09:20:54 +020039#include <haproxy/hlua.h>
Willy Tarreauc2b1ff02020-06-04 21:21:03 +020040#include <haproxy/http_ana.h>
Willy Tarreauc761f842020-06-04 11:40:28 +020041#include <haproxy/http_rules.h>
Willy Tarreau16f958c2020-06-03 08:44:35 +020042#include <haproxy/htx.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020043#include <haproxy/istbuf.h>
Willy Tarreauaeed4a82020-06-04 22:01:04 +020044#include <haproxy/log.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020045#include <haproxy/pipe.h>
Willy Tarreaud0ef4392020-06-02 09:38:52 +020046#include <haproxy/pool.h>
Willy Tarreaua264d962020-06-04 22:29:18 +020047#include <haproxy/proxy.h>
Willy Tarreaua55c4542020-06-04 22:59:39 +020048#include <haproxy/queue.h>
Willy Tarreau1e56f922020-06-04 23:20:13 +020049#include <haproxy/server.h>
Emeric Brunc9437992021-02-12 19:42:55 +010050#include <haproxy/resolvers.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
Christopher Faulet4ef84c92021-01-21 17:36:12 +0100288/* Upgrade an existing TCP stream for connection <conn>. Return < 0 on error.
289 * This is only valid right after a TCP to H1 upgrade. The stream should be
290 * "reativated" by removing SF_IGNORE flag. And the right mode must be set.
291 * On success, <input> buffer is transferred to the stream and thus points to
292 * BUF_NULL. On error, it is unchanged and it is the caller responsibility to
293 * release it (this never happens for now).
294 */
295int stream_upgrade_from_cs(struct conn_stream *cs, struct buffer *input)
296{
297 struct stream_interface *si = cs->data;
298 struct stream *s = si_strm(si);
299
300 if (cs->conn->mux->flags & MX_FL_HTX)
301 s->flags |= SF_HTX;
302
303 if (!b_is_null(input)) {
304 /* Xfer the input buffer to the request channel. <input> will
305 * than point to BUF_NULL. From this point, it is the stream
306 * responsibility to release it.
307 */
308 s->req.buf = *input;
309 *input = BUF_NULL;
310 s->req.total = (IS_HTX_STRM(s) ? htxbuf(&s->req.buf)->data : b_data(&s->req.buf));
311 s->req.flags |= (s->req.total ? CF_READ_PARTIAL : 0);
312 }
313
314 s->flags &= ~SF_IGNORE;
315
316 task_wakeup(s->task, TASK_WOKEN_INIT);
317 return 0;
318}
319
Willy Tarreaub882dd82018-11-06 15:50:21 +0100320/* Callback used to wake up a stream when an input buffer is available. The
321 * stream <s>'s stream interfaces are checked for a failed buffer allocation
Willy Tarreaud0f5bbc2018-11-14 11:10:26 +0100322 * as indicated by the presence of the SI_FL_RXBLK_ROOM flag and the lack of a
Willy Tarreaub882dd82018-11-06 15:50:21 +0100323 * buffer, and and input buffer is assigned there (at most one). The function
324 * returns 1 and wakes the stream up if a buffer was taken, otherwise zero.
325 * It's designed to be called from __offer_buffer().
326 */
327int stream_buf_available(void *arg)
328{
329 struct stream *s = arg;
330
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100331 if (!s->req.buf.size && !s->req.pipe && (s->si[0].flags & SI_FL_RXBLK_BUFF) &&
Willy Tarreaub882dd82018-11-06 15:50:21 +0100332 b_alloc_margin(&s->req.buf, global.tune.reserved_bufs))
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100333 si_rx_buff_rdy(&s->si[0]);
334 else if (!s->res.buf.size && !s->res.pipe && (s->si[1].flags & SI_FL_RXBLK_BUFF) &&
Willy Tarreaub882dd82018-11-06 15:50:21 +0100335 b_alloc_margin(&s->res.buf, 0))
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100336 si_rx_buff_rdy(&s->si[1]);
Willy Tarreaub882dd82018-11-06 15:50:21 +0100337 else
338 return 0;
339
340 task_wakeup(s->task, TASK_WOKEN_RES);
341 return 1;
342
343}
344
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200345/* This function is called from the session handler which detects the end of
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200346 * handshake, in order to complete initialization of a valid stream. It must be
Joseph Herlant4cc8d0d2018-11-15 09:14:14 -0800347 * called with a completely initialized session. It returns the pointer to
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200348 * the newly created stream, or NULL in case of fatal error. The client-facing
Willy Tarreau87787ac2017-08-28 16:22:54 +0200349 * end point is assigned to <origin>, which must be valid. The stream's task
350 * is configured with a nice value inherited from the listener's nice if any.
351 * The task's context is set to the new stream, and its function is set to
Christopher Faulet16df1782020-12-04 16:47:41 +0100352 * process_stream(). Target and analysers are null. <input> is used as input
353 * buffer for the request channel and may contain data. On success, it is
354 * transfer to the stream and <input> is set to BUF_NULL. On error, <input>
355 * buffer is unchanged and it is the caller responsibility to release it.
Willy Tarreau2542b532012-08-31 16:01:23 +0200356 */
Christopher Faulet26256f82020-09-14 11:40:13 +0200357struct stream *stream_new(struct session *sess, enum obj_type *origin, struct buffer *input)
Willy Tarreau2542b532012-08-31 16:01:23 +0200358{
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200359 struct stream *s;
Willy Tarreau87787ac2017-08-28 16:22:54 +0200360 struct task *t;
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200361 struct conn_stream *cs = objt_cs(origin);
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200362 struct appctx *appctx = objt_appctx(origin);
Willy Tarreau2542b532012-08-31 16:01:23 +0200363
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100364 DBG_TRACE_ENTER(STRM_EV_STRM_NEW);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100365 if (unlikely((s = pool_alloc(pool_head_stream)) == NULL))
Willy Tarreau87787ac2017-08-28 16:22:54 +0200366 goto out_fail_alloc;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200367
368 /* minimum stream initialization required for an embryonic stream is
369 * fairly low. We need very little to execute L4 ACLs, then we need a
370 * task to make the client-side connection live on its own.
371 * - flags
372 * - stick-entry tracking
373 */
374 s->flags = 0;
Willy Tarreaufb9f5842015-04-05 18:19:23 +0200375 s->logs.logwait = sess->fe->to_log;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200376 s->logs.level = 0;
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200377 tv_zero(&s->logs.tv_request);
378 s->logs.t_queue = -1;
379 s->logs.t_connect = -1;
380 s->logs.t_data = -1;
381 s->logs.t_close = 0;
382 s->logs.bytes_in = s->logs.bytes_out = 0;
Patrick Hemmerffe5e8c2018-05-11 12:52:31 -0400383 s->logs.prx_queue_pos = 0; /* we get the number of pending conns before us */
384 s->logs.srv_queue_pos = 0; /* we will get this number soon */
Baptiste Assmann333939c2019-01-21 08:34:50 +0100385 s->obj_type = OBJ_TYPE_STREAM;
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200386
Christopher Faulet15e525f2020-09-30 14:03:54 +0200387 s->logs.accept_date = sess->accept_date;
388 s->logs.tv_accept = sess->tv_accept;
389 s->logs.t_handshake = sess->t_handshake;
Christopher Faulet7a6c5132020-09-30 13:49:56 +0200390 s->logs.t_idle = sess->t_idle;
Christopher Fauletb3484d62018-11-29 15:19:05 +0100391
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200392 /* default logging function */
393 s->do_log = strm_log;
394
395 /* default error reporting function, may be changed by analysers */
396 s->srv_error = default_srv_error;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200397
398 /* Initialise the current rule list pointer to NULL. We are sure that
399 * any rulelist match the NULL pointer.
400 */
401 s->current_rule_list = NULL;
Remi Gacogne7fb9de22015-07-22 17:10:58 +0200402 s->current_rule = NULL;
Christopher Faulet2747fbb2020-07-28 11:56:13 +0200403 s->rules_exp = TICK_ETERNITY;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200404
Willy Tarreaua68f7622015-09-21 17:48:24 +0200405 /* Copy SC counters for the stream. We don't touch refcounts because
406 * any reference we have is inherited from the session. Since the stream
407 * doesn't exist without the session, the session's existence guarantees
408 * we don't lose the entry. During the store operation, the stream won't
409 * touch these ones.
Thierry FOURNIER827752e2015-08-18 11:34:18 +0200410 */
Thierry FOURNIERc8fdb982015-08-16 12:03:39 +0200411 memcpy(s->stkctr, sess->stkctr, sizeof(s->stkctr));
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200412
413 s->sess = sess;
414 s->si[0].flags = SI_FL_NONE;
415 s->si[1].flags = SI_FL_ISBACK;
416
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100417 s->uniq_id = _HA_ATOMIC_XADD(&global.req_count, 1);
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200418
Willy Tarreau87b09662015-04-03 00:22:06 +0200419 /* OK, we're keeping the stream, so let's properly initialize the stream */
Willy Tarreau2542b532012-08-31 16:01:23 +0200420 LIST_INIT(&s->back_refs);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100421
Willy Tarreau21046592020-02-26 10:39:36 +0100422 MT_LIST_INIT(&s->buffer_wait.list);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100423 s->buffer_wait.target = s;
Willy Tarreaub882dd82018-11-06 15:50:21 +0100424 s->buffer_wait.wakeup_cb = stream_buf_available;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200425
Willy Tarreau2e9c1d22019-04-24 08:28:31 +0200426 s->call_rate.curr_sec = s->call_rate.curr_ctr = s->call_rate.prev_ctr = 0;
William Lallemandcf62f7e2018-10-26 14:47:40 +0200427 s->pcli_next_pid = 0;
William Lallemandebf61802018-12-11 16:10:57 +0100428 s->pcli_flags = 0;
Tim Duesterhusa17e6622020-03-05 20:19:02 +0100429 s->unique_id = IST_NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200430
Emeric Brunc60def82017-09-27 14:59:38 +0200431 if ((t = task_new(tid_bit)) == NULL)
Willy Tarreau87787ac2017-08-28 16:22:54 +0200432 goto out_fail_alloc;
433
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200434 s->task = t;
Christopher Faulet9d810ca2016-12-08 22:33:52 +0100435 s->pending_events = 0;
Willy Tarreaud1769b82015-04-06 00:25:48 +0200436 t->process = process_stream;
Willy Tarreau2542b532012-08-31 16:01:23 +0200437 t->context = s;
438 t->expire = TICK_ETERNITY;
Willy Tarreau87787ac2017-08-28 16:22:54 +0200439 if (sess->listener)
440 t->nice = sess->listener->nice;
Willy Tarreau2542b532012-08-31 16:01:23 +0200441
Willy Tarreau87b09662015-04-03 00:22:06 +0200442 /* Note: initially, the stream's backend points to the frontend.
Willy Tarreau2542b532012-08-31 16:01:23 +0200443 * This changes later when switching rules are executed or
444 * when the default backend is assigned.
445 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200446 s->be = sess->fe;
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200447 s->req_cap = NULL;
448 s->res_cap = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200449
Willy Tarreauebcd4842015-06-19 11:59:02 +0200450 /* Initialise all the variables contexts even if not used.
451 * This permits to prune these contexts without errors.
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200452 */
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200453 vars_init(&s->vars_txn, SCOPE_TXN);
454 vars_init(&s->vars_reqres, SCOPE_REQ);
455
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200456 /* this part should be common with other protocols */
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200457 if (si_reset(&s->si[0]) < 0)
458 goto out_fail_alloc;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200459 si_set_state(&s->si[0], SI_ST_EST);
Hongbo Longe39683c2017-03-10 18:41:51 +0100460 s->si[0].hcto = sess->fe->timeout.clientfin;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200461
Christopher Faulet0e160ff2019-04-03 10:01:07 +0200462 if (cs && cs->conn->mux) {
463 if (cs->conn->mux->flags & MX_FL_CLEAN_ABRT)
464 s->si[0].flags |= SI_FL_CLEAN_ABRT;
465 if (cs->conn->mux->flags & MX_FL_HTX)
466 s->flags |= SF_HTX;
467 }
Christopher Faulet3494c632019-07-15 14:58:26 +0200468 /* Set SF_HTX flag for HTTP frontends. */
469 if (sess->fe->mode == PR_MODE_HTTP)
Christopher Faulet0e160ff2019-04-03 10:01:07 +0200470 s->flags |= SF_HTX;
Willy Tarreau984fca92017-12-20 16:31:43 +0100471
Willy Tarreau1f52bb22015-04-04 14:28:46 +0200472 /* attach the incoming connection to the stream interface now. */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200473 if (cs)
474 si_attach_cs(&s->si[0], cs);
Willy Tarreau470280e2015-04-05 01:33:13 +0200475 else if (appctx)
476 si_attach_appctx(&s->si[0], appctx);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200477
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200478 if (likely(sess->fe->options2 & PR_O2_INDEPSTR))
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200479 s->si[0].flags |= SI_FL_INDEP_STR;
480
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200481 /* pre-initialize the other side's stream interface to an INIT state. The
482 * callbacks will be initialized before attempting to connect.
483 */
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200484 if (si_reset(&s->si[1]) < 0)
485 goto out_fail_alloc_si1;
Hongbo Longe39683c2017-03-10 18:41:51 +0100486 s->si[1].hcto = TICK_ETERNITY;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200487
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200488 if (likely(sess->fe->options2 & PR_O2_INDEPSTR))
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200489 s->si[1].flags |= SI_FL_INDEP_STR;
490
Willy Tarreau87b09662015-04-03 00:22:06 +0200491 stream_init_srv_conn(s);
Willy Tarreau9b82d942016-12-05 00:26:31 +0100492 s->target = sess->listener ? sess->listener->default_target : NULL;
Willy Tarreau90420602019-07-18 15:09:57 +0200493 s->target_addr = NULL;
Willy Tarreau9b82d942016-12-05 00:26:31 +0100494
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200495 s->pend_pos = NULL;
Patrick Hemmer268a7072018-05-11 12:52:31 -0400496 s->priority_class = 0;
497 s->priority_offset = 0;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200498
499 /* init store persistence */
500 s->store_count = 0;
501
Christopher Faulet16df1782020-12-04 16:47:41 +0100502 channel_init(&s->req);
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100503 s->req.flags |= CF_READ_ATTACHED; /* the producer is already connected */
Willy Tarreau9b82d942016-12-05 00:26:31 +0100504 s->req.analysers = sess->listener ? sess->listener->analysers : 0;
Willy Tarreaue223e3b2017-11-18 15:39:10 +0100505
506 if (!sess->fe->fe_req_ana) {
507 channel_auto_connect(&s->req); /* don't wait to establish connection */
508 channel_auto_close(&s->req); /* let the producer forward close requests */
509 }
Willy Tarreauc8815ef2015-04-05 18:15:59 +0200510
511 s->req.rto = sess->fe->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100512 s->req.wto = TICK_ETERNITY;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100513 s->req.rex = TICK_ETERNITY;
514 s->req.wex = TICK_ETERNITY;
515 s->req.analyse_exp = TICK_ETERNITY;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200516
Christopher Faulet16df1782020-12-04 16:47:41 +0100517 channel_init(&s->res);
Willy Tarreauef573c02014-11-28 14:17:09 +0100518 s->res.flags |= CF_ISRESP;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100519 s->res.analysers = 0;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200520
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200521 if (sess->fe->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100522 s->req.flags |= CF_NEVER_WAIT;
523 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200524 }
525
Willy Tarreauc8815ef2015-04-05 18:15:59 +0200526 s->res.wto = sess->fe->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100527 s->res.rto = TICK_ETERNITY;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100528 s->res.rex = TICK_ETERNITY;
529 s->res.wex = TICK_ETERNITY;
530 s->res.analyse_exp = TICK_ETERNITY;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200531
Willy Tarreaueee5b512015-04-03 23:46:31 +0200532 s->txn = NULL;
Thierry FOURNIER2c8b54e2016-12-17 12:45:32 +0100533 s->hlua = NULL;
Thierry FOURNIER65f34c62015-02-16 20:11:43 +0100534
Emeric Brun08622d32020-12-23 17:41:43 +0100535 s->resolv_ctx.requester = NULL;
536 s->resolv_ctx.hostname_dn = NULL;
537 s->resolv_ctx.hostname_dn_len = 0;
538 s->resolv_ctx.parent = NULL;
Frédéric Lécaillebed883a2019-04-23 17:26:33 +0200539
Amaury Denoyellefb504432020-12-10 13:43:53 +0100540 s->tunnel_timeout = TICK_ETERNITY;
541
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100542 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200543 LIST_ADDQ(&streams, &s->list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100544 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200545
Christopher Faulet92d36382015-11-05 13:35:03 +0100546 if (flt_stream_init(s) < 0 || flt_stream_start(s) < 0)
Christopher Fauletd7c91962015-04-30 11:48:27 +0200547 goto out_fail_accept;
548
Olivier Houcharda254a372019-04-05 15:30:12 +0200549 s->si[1].l7_buffer = BUF_NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200550 /* finish initialization of the accepted file descriptor */
Olivier Houchard53216e72018-10-10 15:46:36 +0200551 if (appctx)
Willy Tarreau0cd3bd62018-11-06 18:46:37 +0100552 si_want_get(&s->si[0]);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200553
Willy Tarreaufb9f5842015-04-05 18:19:23 +0200554 if (sess->fe->accept && sess->fe->accept(s) < 0)
Willy Tarreauc5a7ff42015-04-05 11:52:08 +0200555 goto out_fail_accept;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200556
Christopher Faulet16df1782020-12-04 16:47:41 +0100557 if (!b_is_null(input)) {
558 /* Xfer the input buffer to the request channel. <input> will
559 * than point to BUF_NULL. From this point, it is the stream
560 * responsibility to release it.
561 */
562 s->req.buf = *input;
563 *input = BUF_NULL;
Christopher Fauletc43fca02020-12-04 17:22:49 +0100564 s->req.total = (IS_HTX_STRM(s) ? htxbuf(&s->req.buf)->data : b_data(&s->req.buf));
Christopher Faulet16df1782020-12-04 16:47:41 +0100565 s->req.flags |= (s->req.total ? CF_READ_PARTIAL : 0);
566 }
567
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200568 /* it is important not to call the wakeup function directly but to
569 * pass through task_wakeup(), because this one knows how to apply
Emeric Brun5f77fef2017-05-29 15:26:51 +0200570 * priorities to tasks. Using multi thread we must be sure that
571 * stream is fully initialized before calling task_wakeup. So
572 * the caller must handle the task_wakeup
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200573 */
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100574 DBG_TRACE_LEAVE(STRM_EV_STRM_NEW, s);
Willy Tarreau02d86382015-04-05 12:00:52 +0200575 return s;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200576
577 /* Error unrolling */
Willy Tarreauc5a7ff42015-04-05 11:52:08 +0200578 out_fail_accept:
Christopher Faulet92d36382015-11-05 13:35:03 +0100579 flt_stream_release(s, 0);
Olivier Houchard3f795f72019-04-17 22:51:06 +0200580 task_destroy(t);
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200581 tasklet_free(s->si[1].wait_event.tasklet);
Willy Tarreaue5f229e2018-10-15 11:08:55 +0200582 LIST_DEL(&s->list);
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200583out_fail_alloc_si1:
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200584 tasklet_free(s->si[0].wait_event.tasklet);
Willy Tarreau87787ac2017-08-28 16:22:54 +0200585 out_fail_alloc:
Willy Tarreaubafbe012017-11-24 17:34:44 +0100586 pool_free(pool_head_stream, s);
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100587 DBG_TRACE_DEVEL("leaving on error", STRM_EV_STRM_NEW|STRM_EV_STRM_ERR);
Willy Tarreau02d86382015-04-05 12:00:52 +0200588 return NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200589}
590
Willy Tarreaubaaee002006-06-26 02:48:02 +0200591/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200592 * frees the context associated to a stream. It must have been removed first.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200593 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200594static void stream_free(struct stream *s)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200595{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200596 struct session *sess = strm_sess(s);
597 struct proxy *fe = sess->fe;
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100598 struct bref *bref, *back;
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200599 struct conn_stream *cli_cs = objt_cs(s->si[0].end);
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100600 int must_free_sess;
Willy Tarreaua4cda672010-06-06 18:28:49 +0200601 int i;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100602
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100603 DBG_TRACE_POINT(STRM_EV_STRM_FREE, s);
604
Willy Tarreau0ad46fa2019-05-17 14:20:05 +0200605 /* detach the stream from its own task before even releasing it so
606 * that walking over a task list never exhibits a dying stream.
607 */
608 s->task->context = NULL;
609 __ha_barrier_store();
610
Willy Tarreaud0ad4a82018-07-25 11:13:53 +0200611 pendconn_free(s);
Willy Tarreau922a8062008-12-04 09:33:58 +0100612
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100613 if (objt_server(s->target)) { /* there may be requests left pending in queue */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200614 if (s->flags & SF_CURR_SESS) {
615 s->flags &= ~SF_CURR_SESS;
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100616 _HA_ATOMIC_SUB(&__objt_server(s->target)->cur_sess, 1);
Willy Tarreau1e62de62008-11-11 20:20:02 +0100617 }
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100618 if (may_dequeue_tasks(objt_server(s->target), s->be))
619 process_srv_queue(objt_server(s->target));
Willy Tarreau1e62de62008-11-11 20:20:02 +0100620 }
Willy Tarreau922a8062008-12-04 09:33:58 +0100621
Willy Tarreau7c669d72008-06-20 15:04:11 +0200622 if (unlikely(s->srv_conn)) {
Willy Tarreau87b09662015-04-03 00:22:06 +0200623 /* the stream still has a reserved slot on a server, but
Willy Tarreau7c669d72008-06-20 15:04:11 +0200624 * it should normally be only the same as the one above,
625 * so this should not happen in fact.
626 */
627 sess_change_server(s, NULL);
628 }
629
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100630 if (s->req.pipe)
631 put_pipe(s->req.pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100632
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100633 if (s->res.pipe)
634 put_pipe(s->res.pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100635
Willy Tarreaubf883e02014-11-25 21:10:35 +0100636 /* We may still be present in the buffer wait queue */
Willy Tarreau21046592020-02-26 10:39:36 +0100637 if (MT_LIST_ADDED(&s->buffer_wait.list))
638 MT_LIST_DEL(&s->buffer_wait.list);
639
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200640 if (s->req.buf.size || s->res.buf.size) {
Willy Tarreaue0d0b402019-08-08 08:06:27 +0200641 b_free(&s->req.buf);
642 b_free(&s->res.buf);
Olivier Houchard673867c2018-05-25 16:58:52 +0200643 offer_buffers(NULL, tasks_run_queue);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100644 }
Willy Tarreau9b28e032012-10-12 23:49:43 +0200645
Tim Duesterhusa17e6622020-03-05 20:19:02 +0100646 pool_free(pool_head_uniqueid, s->unique_id.ptr);
647 s->unique_id = IST_NULL;
Olivier Houchard32211a12019-02-01 18:10:46 +0100648
Thierry FOURNIER2c8b54e2016-12-17 12:45:32 +0100649 hlua_ctx_destroy(s->hlua);
650 s->hlua = NULL;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200651 if (s->txn)
652 http_end_txn(s);
Willy Tarreau46023632010-01-07 22:51:47 +0100653
Willy Tarreau1e954912012-10-12 17:50:05 +0200654 /* ensure the client-side transport layer is destroyed */
Willy Tarreau32560732017-10-08 11:33:44 +0200655 if (cli_cs)
656 cs_close(cli_cs);
Willy Tarreau1e954912012-10-12 17:50:05 +0200657
Willy Tarreaua4cda672010-06-06 18:28:49 +0200658 for (i = 0; i < s->store_count; i++) {
659 if (!s->store[i].ts)
660 continue;
661 stksess_free(s->store[i].table, s->store[i].ts);
662 s->store[i].ts = NULL;
663 }
664
Willy Tarreaueee5b512015-04-03 23:46:31 +0200665 if (s->txn) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100666 pool_free(pool_head_http_txn, s->txn);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200667 s->txn = NULL;
668 }
669
Emeric Brun08622d32020-12-23 17:41:43 +0100670 if (s->resolv_ctx.requester) {
Emeric Brun21fbeed2020-12-23 18:01:04 +0100671 __decl_thread(struct resolvers *resolvers = s->resolv_ctx.parent->arg.resolv.resolvers);
Christopher Faulet5098a082020-07-22 11:46:32 +0200672
673 HA_SPIN_LOCK(DNS_LOCK, &resolvers->lock);
Emeric Brun08622d32020-12-23 17:41:43 +0100674 free(s->resolv_ctx.hostname_dn); s->resolv_ctx.hostname_dn = NULL;
675 s->resolv_ctx.hostname_dn_len = 0;
Emeric Brund30e9a12020-12-23 18:49:16 +0100676 resolv_unlink_resolution(s->resolv_ctx.requester);
Christopher Faulet5098a082020-07-22 11:46:32 +0200677 HA_SPIN_UNLOCK(DNS_LOCK, &resolvers->lock);
Baptiste Assmann333939c2019-01-21 08:34:50 +0100678
Emeric Brun08622d32020-12-23 17:41:43 +0100679 pool_free(resolv_requester_pool, s->resolv_ctx.requester);
680 s->resolv_ctx.requester = NULL;
Baptiste Assmann333939c2019-01-21 08:34:50 +0100681 }
682
Christopher Fauletd7c91962015-04-30 11:48:27 +0200683 flt_stream_stop(s);
Christopher Faulet92d36382015-11-05 13:35:03 +0100684 flt_stream_release(s, 0);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200685
Willy Tarreau92fb9832007-10-16 17:34:28 +0200686 if (fe) {
Christopher Faulet59399252019-11-07 14:27:52 +0100687 if (s->req_cap) {
688 struct cap_hdr *h;
689 for (h = fe->req_cap; h; h = h->next)
690 pool_free(h->pool, s->req_cap[h->index]);
691 }
692
693 if (s->res_cap) {
694 struct cap_hdr *h;
695 for (h = fe->rsp_cap; h; h = h->next)
696 pool_free(h->pool, s->res_cap[h->index]);
697 }
698
Willy Tarreaubafbe012017-11-24 17:34:44 +0100699 pool_free(fe->rsp_cap_pool, s->res_cap);
700 pool_free(fe->req_cap_pool, s->req_cap);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200701 }
Willy Tarreau0937bc42009-12-22 15:03:09 +0100702
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200703 /* Cleanup all variable contexts. */
Willy Tarreaucda7f3f2018-10-28 13:44:36 +0100704 if (!LIST_ISEMPTY(&s->vars_txn.head))
705 vars_prune(&s->vars_txn, s->sess, s);
706 if (!LIST_ISEMPTY(&s->vars_reqres.head))
707 vars_prune(&s->vars_reqres, s->sess, s);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200708
Willy Tarreau87b09662015-04-03 00:22:06 +0200709 stream_store_counters(s);
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +0200710
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100711 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100712 list_for_each_entry_safe(bref, back, &s->back_refs, users) {
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100713 /* we have to unlink all watchers. We must not relink them if
Willy Tarreau87b09662015-04-03 00:22:06 +0200714 * this stream was the last one in the list.
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100715 */
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100716 LIST_DEL(&bref->users);
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100717 LIST_INIT(&bref->users);
Willy Tarreau87b09662015-04-03 00:22:06 +0200718 if (s->list.n != &streams)
719 LIST_ADDQ(&LIST_ELEM(s->list.n, struct stream *, list)->back_refs, &bref->users);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100720 bref->ref = s->list.n;
721 }
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100722 LIST_DEL(&s->list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100723 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200724
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100725 /* applets do not release session yet */
726 must_free_sess = objt_appctx(sess->origin) && sess->origin == s->si[0].end;
727
Olivier Houchard4fdec7a2018-10-11 17:09:14 +0200728
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200729 si_release_endpoint(&s->si[1]);
730 si_release_endpoint(&s->si[0]);
Willy Tarreaufeb76402015-04-03 14:10:06 +0200731
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200732 tasklet_free(s->si[0].wait_event.tasklet);
733 tasklet_free(s->si[1].wait_event.tasklet);
Olivier Houchardd7bd3e32018-10-18 16:22:02 +0200734
Olivier Houcharda254a372019-04-05 15:30:12 +0200735 b_free(&s->si[1].l7_buffer);
Olivier Houchard25607af2018-11-23 14:50:47 +0100736 if (must_free_sess) {
737 sess->origin = NULL;
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100738 session_free(sess);
Olivier Houchard25607af2018-11-23 14:50:47 +0100739 }
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100740
Willy Tarreau90420602019-07-18 15:09:57 +0200741 sockaddr_free(&s->target_addr);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100742 pool_free(pool_head_stream, s);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200743
744 /* We may want to free the maximum amount of pools if the proxy is stopping */
Willy Tarreauc3914d42020-09-24 08:39:22 +0200745 if (fe && unlikely(fe->disabled)) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100746 pool_flush(pool_head_buffer);
747 pool_flush(pool_head_http_txn);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100748 pool_flush(pool_head_requri);
749 pool_flush(pool_head_capture);
750 pool_flush(pool_head_stream);
751 pool_flush(pool_head_session);
752 pool_flush(pool_head_connection);
753 pool_flush(pool_head_pendconn);
754 pool_flush(fe->req_cap_pool);
755 pool_flush(fe->rsp_cap_pool);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200756 }
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200757}
758
Willy Tarreau656859d2014-11-25 19:46:36 +0100759
Willy Tarreau87b09662015-04-03 00:22:06 +0200760/* Allocates a work buffer for stream <s>. It is meant to be called inside
761 * process_stream(). It will only allocate the side needed for the function
Willy Tarreaubc39a5d2015-04-20 15:52:18 +0200762 * to work fine, which is the response buffer so that an error message may be
763 * built and returned. Response buffers may be allocated from the reserve, this
764 * is critical to ensure that a response may always flow and will never block a
765 * server from releasing a connection. Returns 0 in case of failure, non-zero
766 * otherwise.
Willy Tarreau656859d2014-11-25 19:46:36 +0100767 */
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100768static int stream_alloc_work_buffer(struct stream *s)
Willy Tarreau656859d2014-11-25 19:46:36 +0100769{
Willy Tarreau21046592020-02-26 10:39:36 +0100770 if (MT_LIST_ADDED(&s->buffer_wait.list))
771 MT_LIST_DEL(&s->buffer_wait.list);
Willy Tarreau656859d2014-11-25 19:46:36 +0100772
Willy Tarreaubc39a5d2015-04-20 15:52:18 +0200773 if (b_alloc_margin(&s->res.buf, 0))
Willy Tarreau656859d2014-11-25 19:46:36 +0100774 return 1;
775
Willy Tarreau86891272020-07-10 08:22:26 +0200776 MT_LIST_ADDQ(&buffer_wq, &s->buffer_wait.list);
Willy Tarreau656859d2014-11-25 19:46:36 +0100777 return 0;
778}
779
780/* releases unused buffers after processing. Typically used at the end of the
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100781 * update() functions. It will try to wake up as many tasks/applets as the
782 * number of buffers that it releases. In practice, most often streams are
783 * blocked on a single buffer, so it makes sense to try to wake two up when two
784 * buffers are released at once.
Willy Tarreau656859d2014-11-25 19:46:36 +0100785 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200786void stream_release_buffers(struct stream *s)
Willy Tarreau656859d2014-11-25 19:46:36 +0100787{
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100788 int offer = 0;
Willy Tarreau656859d2014-11-25 19:46:36 +0100789
Willy Tarreau0c7ed5d2018-07-10 09:53:31 +0200790 if (c_size(&s->req) && c_empty(&s->req)) {
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100791 offer = 1;
792 b_free(&s->req.buf);
793 }
Willy Tarreau0c7ed5d2018-07-10 09:53:31 +0200794 if (c_size(&s->res) && c_empty(&s->res)) {
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100795 offer = 1;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100796 b_free(&s->res.buf);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100797 }
Willy Tarreau656859d2014-11-25 19:46:36 +0100798
Willy Tarreaubf883e02014-11-25 21:10:35 +0100799 /* if we're certain to have at least 1 buffer available, and there is
800 * someone waiting, we can wake up a waiter and offer them.
801 */
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100802 if (offer)
Olivier Houchard673867c2018-05-25 16:58:52 +0200803 offer_buffers(s, tasks_run_queue);
Willy Tarreau656859d2014-11-25 19:46:36 +0100804}
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200805
Willy Tarreau87b09662015-04-03 00:22:06 +0200806void stream_process_counters(struct stream *s)
Willy Tarreau30e71012007-11-26 20:15:35 +0100807{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200808 struct session *sess = s->sess;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100809 unsigned long long bytes;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100810 int i;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100811
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100812 bytes = s->req.total - s->logs.bytes_in;
813 s->logs.bytes_in = s->req.total;
814 if (bytes) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100815 _HA_ATOMIC_ADD(&sess->fe->fe_counters.bytes_in, bytes);
816 _HA_ATOMIC_ADD(&s->be->be_counters.bytes_in, bytes);
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100817
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100818 if (objt_server(s->target))
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100819 _HA_ATOMIC_ADD(&objt_server(s->target)->counters.bytes_in, bytes);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200820
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200821 if (sess->listener && sess->listener->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100822 _HA_ATOMIC_ADD(&sess->listener->counters->bytes_in, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200823
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100824 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Christopher Faulet84600632020-10-06 13:52:40 +0200825 if (!stkctr_inc_bytes_in_ctr(&s->stkctr[i], bytes))
826 stkctr_inc_bytes_in_ctr(&sess->stkctr[i], bytes);
Willy Tarreau30e71012007-11-26 20:15:35 +0100827 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100828 }
829
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100830 bytes = s->res.total - s->logs.bytes_out;
831 s->logs.bytes_out = s->res.total;
832 if (bytes) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100833 _HA_ATOMIC_ADD(&sess->fe->fe_counters.bytes_out, bytes);
834 _HA_ATOMIC_ADD(&s->be->be_counters.bytes_out, bytes);
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100835
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100836 if (objt_server(s->target))
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100837 _HA_ATOMIC_ADD(&objt_server(s->target)->counters.bytes_out, bytes);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200838
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200839 if (sess->listener && sess->listener->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100840 _HA_ATOMIC_ADD(&sess->listener->counters->bytes_out, bytes);
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200841
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100842 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Christopher Faulet84600632020-10-06 13:52:40 +0200843 if (!stkctr_inc_bytes_out_ctr(&s->stkctr[i], bytes))
844 stkctr_inc_bytes_out_ctr(&sess->stkctr[i], bytes);
Willy Tarreau30e71012007-11-26 20:15:35 +0100845 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100846 }
847}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200848
Amaury Denoyelleb7150782020-12-10 13:43:51 +0100849int stream_set_timeout(struct stream *s, enum act_timeout_name name, int timeout)
850{
Amaury Denoyelle90d3d882020-12-10 13:43:52 +0100851 switch (name) {
852 case ACT_TIMEOUT_SERVER:
853 s->req.wto = timeout;
854 s->res.rto = timeout;
855 return 1;
856
Amaury Denoyellefb504432020-12-10 13:43:53 +0100857 case ACT_TIMEOUT_TUNNEL:
858 s->tunnel_timeout = timeout;
859 return 1;
860
Amaury Denoyelle90d3d882020-12-10 13:43:52 +0100861 default:
862 return 0;
863 }
Amaury Denoyelleb7150782020-12-10 13:43:51 +0100864}
865
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100866/*
867 * This function handles the transition between the SI_ST_CON state and the
Willy Tarreau85e7d002010-05-31 11:57:51 +0200868 * SI_ST_EST state. It must only be called after switching from SI_ST_CON (or
Willy Tarreau4f283fa2019-06-05 14:34:03 +0200869 * 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 +0200870 * Note that it will switch the interface to SI_ST_DIS if we already have
871 * the CF_SHUTR flag, it means we were able to forward the request, and
872 * receive the response, before process_stream() had the opportunity to
873 * make the switch from SI_ST_CON to SI_ST_EST. When that happens, we want
Willy Tarreau3a9312a2020-01-09 18:43:15 +0100874 * to go through back_establish() anyway, to make sure the analysers run.
Willy Tarreaud66ed882019-06-05 18:02:04 +0200875 * Timeouts are cleared. Error are reported on the channel so that analysers
876 * can handle them.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100877 */
Willy Tarreau3a9312a2020-01-09 18:43:15 +0100878static void back_establish(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100879{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100880 struct stream_interface *si = &s->si[1];
Willy Tarreaud66ed882019-06-05 18:02:04 +0200881 struct conn_stream *srv_cs = objt_cs(si->end);
882 struct connection *conn = srv_cs ? srv_cs->conn : objt_conn(si->end);
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100883 struct channel *req = &s->req;
884 struct channel *rep = &s->res;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100885
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100886 DBG_TRACE_ENTER(STRM_EV_STRM_PROC|STRM_EV_SI_ST, s);
Willy Tarreaud66ed882019-06-05 18:02:04 +0200887 /* First, centralize the timers information, and clear any irrelevant
888 * timeout.
889 */
Willy Tarreau0e37f1c2013-12-31 23:06:46 +0100890 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreaud66ed882019-06-05 18:02:04 +0200891 si->exp = TICK_ETERNITY;
892 si->flags &= ~SI_FL_EXP;
893
894 /* errors faced after sending data need to be reported */
895 if (si->flags & SI_FL_ERR && req->flags & CF_WROTE_DATA) {
896 /* Don't add CF_WRITE_ERROR if we're here because
897 * early data were rejected by the server, or
898 * http_wait_for_response() will never be called
899 * to send a 425.
900 */
901 if (conn && conn->err_code != CO_ER_SSL_EARLY_FAILED)
902 req->flags |= CF_WRITE_ERROR;
903 rep->flags |= CF_READ_ERROR;
904 si->err_type = SI_ET_DATA_ERR;
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100905 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 +0200906 }
907
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100908 if (objt_server(s->target))
909 health_adjust(objt_server(s->target), HANA_STATUS_L4_OK);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100910
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100911 if (s->be->mode == PR_MODE_TCP) { /* let's allow immediate data connection in this case */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100912 /* if the user wants to log as soon as possible, without counting
913 * bytes from the server, then this is the right moment. */
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200914 if (!LIST_ISEMPTY(&strm_fe(s)->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau66425e32018-07-25 06:55:12 +0200915 /* note: no pend_pos here, session is established */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100916 s->logs.t_close = s->logs.t_connect; /* to get a valid end date */
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100917 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100918 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100919 }
920 else {
Willy Tarreaud81ca042013-12-31 22:33:13 +0100921 rep->flags |= CF_READ_DONTWAIT; /* a single read is enough to get response headers */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100922 }
923
Willy Tarreau0007d0a2018-12-11 18:01:38 +0100924 rep->analysers |= strm_fe(s)->fe_rsp_ana | s->be->be_rsp_ana;
Christopher Faulet309c6412015-12-02 09:57:32 +0100925
Willy Tarreau0007d0a2018-12-11 18:01:38 +0100926 /* Be sure to filter response headers if the backend is an HTTP proxy
927 * and if there are filters attached to the stream. */
928 if (s->be->mode == PR_MODE_HTTP && HAS_FILTERS(s))
929 rep->analysers |= AN_RES_FLT_HTTP_HDRS;
Christopher Faulet309c6412015-12-02 09:57:32 +0100930
Willy Tarreau8bb2ffb2018-11-14 17:54:13 +0100931 si_rx_endp_more(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200932 rep->flags |= CF_READ_ATTACHED; /* producer is now attached */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200933 if (objt_cs(si->end)) {
Amaury Denoyelle90d3d882020-12-10 13:43:52 +0100934 /* real connections have timeouts
935 * if already defined, it means that a set-timeout rule has
936 * been executed so do not overwrite them
937 */
938 if (!tick_isset(req->wto))
939 req->wto = s->be->timeout.server;
940 if (!tick_isset(rep->rto))
941 rep->rto = s->be->timeout.server;
Amaury Denoyellefb504432020-12-10 13:43:53 +0100942 if (!tick_isset(s->tunnel_timeout))
943 s->tunnel_timeout = s->be->timeout.tunnel;
Amaury Denoyelle90d3d882020-12-10 13:43:52 +0100944
Olivier Houchard47e9a1a2018-11-07 17:55:19 +0100945 /* The connection is now established, try to read data from the
946 * underlying layer, and subscribe to recv events. We use a
947 * delayed recv here to give a chance to the data to flow back
948 * by the time we process other tasks.
949 */
950 si_chk_rcv(si);
Willy Tarreaud04e8582010-05-31 12:31:35 +0200951 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100952 req->wex = TICK_ETERNITY;
Olivier Houchard78595262019-07-26 14:54:34 +0200953 /* If we managed to get the whole response, and we don't have anything
954 * left to send, or can't, switch to SI_ST_DIS now. */
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100955 if (rep->flags & (CF_SHUTR | CF_SHUTW)) {
Olivier Houchardaacc4052019-05-21 17:43:50 +0200956 si->state = SI_ST_DIS;
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100957 DBG_TRACE_STATE("response channel shutdwn for read/write", STRM_EV_STRM_PROC|STRM_EV_SI_ST|STRM_EV_STRM_ERR, s);
958 }
959
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100960 DBG_TRACE_LEAVE(STRM_EV_STRM_PROC|STRM_EV_SI_ST, s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100961}
962
Willy Tarreau87b09662015-04-03 00:22:06 +0200963/* Set correct stream termination flags in case no analyser has done it. It
Simon Hormandec5be42011-06-08 09:19:07 +0900964 * also counts a failed request if the server state has not reached the request
965 * stage.
966 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200967static void sess_set_term_flags(struct stream *s)
Simon Hormandec5be42011-06-08 09:19:07 +0900968{
Willy Tarreaue7dff022015-04-03 01:14:29 +0200969 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +0200970 if (s->si[1].state == SI_ST_INI) {
971 /* anything before REQ in fact */
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100972 _HA_ATOMIC_ADD(&strm_fe(s)->fe_counters.failed_req, 1);
Willy Tarreau2c1068c2015-09-23 12:21:21 +0200973 if (strm_li(s) && strm_li(s)->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100974 _HA_ATOMIC_ADD(&strm_li(s)->counters->failed_req, 1);
Simon Hormandec5be42011-06-08 09:19:07 +0900975
Willy Tarreaue7dff022015-04-03 01:14:29 +0200976 s->flags |= SF_FINST_R;
Simon Hormandec5be42011-06-08 09:19:07 +0900977 }
978 else if (s->si[1].state == SI_ST_QUE)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200979 s->flags |= SF_FINST_Q;
Willy Tarreau4f283fa2019-06-05 14:34:03 +0200980 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 +0200981 s->flags |= SF_FINST_C;
Simon Hormandec5be42011-06-08 09:19:07 +0900982 else if (s->si[1].state == SI_ST_EST || s->si[1].prev_state == SI_ST_EST)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200983 s->flags |= SF_FINST_D;
Simon Hormandec5be42011-06-08 09:19:07 +0900984 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200985 s->flags |= SF_FINST_L;
Simon Hormandec5be42011-06-08 09:19:07 +0900986 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100987}
988
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200989/* This function parses the use-service action ruleset. It executes
990 * the associated ACL and set an applet as a stream or txn final node.
991 * it returns ACT_RET_ERR if an error occurs, the proxy left in
Ilya Shipitsinc02a23f2020-05-06 00:53:22 +0500992 * consistent state. It returns ACT_RET_STOP in success case because
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200993 * use-service must be a terminal action. Returns ACT_RET_YIELD
994 * if the initialisation function require more data.
995 */
996enum act_return process_use_service(struct act_rule *rule, struct proxy *px,
997 struct session *sess, struct stream *s, int flags)
998
999{
1000 struct appctx *appctx;
1001
1002 /* Initialises the applet if it is required. */
Christopher Faulet105ba6c2019-12-18 14:41:51 +01001003 if (flags & ACT_OPT_FIRST) {
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001004 /* Register applet. this function schedules the applet. */
1005 s->target = &rule->applet.obj_type;
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001006 if (unlikely(!si_register_handler(&s->si[1], objt_applet(s->target))))
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001007 return ACT_RET_ERR;
1008
1009 /* Initialise the context. */
1010 appctx = si_appctx(&s->si[1]);
1011 memset(&appctx->ctx, 0, sizeof(appctx->ctx));
1012 appctx->rule = rule;
1013 }
1014 else
1015 appctx = si_appctx(&s->si[1]);
1016
Ilya Shipitsinc02a23f2020-05-06 00:53:22 +05001017 /* Stops the applet scheduling, in case of the init function miss
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001018 * some data.
1019 */
Willy Tarreau0cd3bd62018-11-06 18:46:37 +01001020 si_stop_get(&s->si[1]);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001021
1022 /* Call initialisation. */
1023 if (rule->applet.init)
1024 switch (rule->applet.init(appctx, px, s)) {
1025 case 0: return ACT_RET_ERR;
1026 case 1: break;
1027 default: return ACT_RET_YIELD;
1028 }
1029
Christopher Faulet2571bc62019-03-01 11:44:26 +01001030 if (rule->from != ACT_F_HTTP_REQ) {
1031 if (sess->fe == s->be) /* report it if the request was intercepted by the frontend */
1032 _HA_ATOMIC_ADD(&sess->fe->fe_counters.intercepted_req, 1);
1033
1034 /* The flag SF_ASSIGNED prevent from server assignment. */
1035 s->flags |= SF_ASSIGNED;
1036 }
1037
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001038 /* Now we can schedule the applet. */
Willy Tarreau0cd3bd62018-11-06 18:46:37 +01001039 si_cant_get(&s->si[1]);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001040 appctx_wakeup(appctx);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001041 return ACT_RET_STOP;
1042}
1043
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001044/* This stream analyser checks the switching rules and changes the backend
Willy Tarreau4de91492010-01-22 19:10:05 +01001045 * if appropriate. The default_backend rule is also considered, then the
1046 * target backend's forced persistence rules are also evaluated last if any.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001047 * It returns 1 if the processing can continue on next analysers, or zero if it
1048 * either needs more data or wants to immediately abort the request.
1049 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001050static int process_switching_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001051{
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001052 struct persist_rule *prst_rule;
Willy Tarreau192252e2015-04-04 01:47:55 +02001053 struct session *sess = s->sess;
1054 struct proxy *fe = sess->fe;
Willy Tarreau4de91492010-01-22 19:10:05 +01001055
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001056 req->analysers &= ~an_bit;
1057 req->analyse_exp = TICK_ETERNITY;
1058
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001059 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001060
1061 /* now check whether we have some switching rules for this request */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001062 if (!(s->flags & SF_BE_ASSIGNED)) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001063 struct switching_rule *rule;
1064
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001065 list_for_each_entry(rule, &fe->switching_rules, list) {
Willy Tarreauf51658d2014-04-23 01:21:56 +02001066 int ret = 1;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001067
Willy Tarreauf51658d2014-04-23 01:21:56 +02001068 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001069 ret = acl_exec_cond(rule->cond, fe, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001070 ret = acl_pass(ret);
1071 if (rule->cond->pol == ACL_COND_UNLESS)
1072 ret = !ret;
1073 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001074
1075 if (ret) {
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001076 /* If the backend name is dynamic, try to resolve the name.
1077 * If we can't resolve the name, or if any error occurs, break
1078 * the loop and fallback to the default backend.
1079 */
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001080 struct proxy *backend = NULL;
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001081
1082 if (rule->dynamic) {
Willy Tarreau83061a82018-07-13 11:56:34 +02001083 struct buffer *tmp;
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001084
1085 tmp = alloc_trash_chunk();
1086 if (!tmp)
1087 goto sw_failed;
1088
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001089 if (build_logline(s, tmp->area, tmp->size, &rule->be.expr))
1090 backend = proxy_be_by_name(tmp->area);
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001091
1092 free_trash_chunk(tmp);
1093 tmp = NULL;
1094
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001095 if (!backend)
1096 break;
1097 }
1098 else
1099 backend = rule->be.backend;
1100
Willy Tarreau87b09662015-04-03 00:22:06 +02001101 if (!stream_set_backend(s, backend))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001102 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001103 break;
1104 }
1105 }
1106
1107 /* To ensure correct connection accounting on the backend, we
1108 * have to assign one if it was not set (eg: a listen). This
1109 * measure also takes care of correctly setting the default
1110 * backend if any.
1111 */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001112 if (!(s->flags & SF_BE_ASSIGNED))
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001113 if (!stream_set_backend(s, fe->defbe.be ? fe->defbe.be : s->be))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001114 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001115 }
1116
Willy Tarreaufb356202010-08-03 14:02:05 +02001117 /* 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 +02001118 if (fe == s->be) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001119 s->req.analysers &= ~AN_REQ_INSPECT_BE;
1120 s->req.analysers &= ~AN_REQ_HTTP_PROCESS_BE;
Christopher Faulet0184ea72017-01-05 14:06:34 +01001121 s->req.analysers &= ~AN_REQ_FLT_START_BE;
Willy Tarreaufb356202010-08-03 14:02:05 +02001122 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001123
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001124 /* 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 +02001125 * persistence rule, and report that in the stream.
Willy Tarreau4de91492010-01-22 19:10:05 +01001126 */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001127 list_for_each_entry(prst_rule, &s->be->persist_rules, list) {
Willy Tarreau4de91492010-01-22 19:10:05 +01001128 int ret = 1;
1129
1130 if (prst_rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001131 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 +01001132 ret = acl_pass(ret);
1133 if (prst_rule->cond->pol == ACL_COND_UNLESS)
1134 ret = !ret;
1135 }
1136
1137 if (ret) {
1138 /* no rule, or the rule matches */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001139 if (prst_rule->type == PERSIST_TYPE_FORCE) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001140 s->flags |= SF_FORCE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001141 } else {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001142 s->flags |= SF_IGNORE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001143 }
Willy Tarreau4de91492010-01-22 19:10:05 +01001144 break;
1145 }
1146 }
1147
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001148 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001149 return 1;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001150
1151 sw_failed:
1152 /* immediately abort this request in case of allocation failure */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001153 channel_abort(&s->req);
1154 channel_abort(&s->res);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001155
Willy Tarreaue7dff022015-04-03 01:14:29 +02001156 if (!(s->flags & SF_ERR_MASK))
1157 s->flags |= SF_ERR_RESOURCE;
1158 if (!(s->flags & SF_FINST_MASK))
1159 s->flags |= SF_FINST_R;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001160
Willy Tarreaueee5b512015-04-03 23:46:31 +02001161 if (s->txn)
1162 s->txn->status = 500;
Christopher Faulet0184ea72017-01-05 14:06:34 +01001163 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001164 s->req.analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001165 DBG_TRACE_DEVEL("leaving on error", STRM_EV_STRM_ANA|STRM_EV_STRM_ERR, s);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001166 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001167}
1168
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001169/* This stream analyser works on a request. It applies all use-server rules on
1170 * it then returns 1. The data must already be present in the buffer otherwise
1171 * they won't match. It always returns 1.
1172 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001173static int process_server_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001174{
1175 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001176 struct session *sess = s->sess;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001177 struct server_rule *rule;
1178
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001179 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001180
Willy Tarreaue7dff022015-04-03 01:14:29 +02001181 if (!(s->flags & SF_ASSIGNED)) {
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001182 list_for_each_entry(rule, &px->server_rules, list) {
1183 int ret;
1184
Willy Tarreau192252e2015-04-04 01:47:55 +02001185 ret = acl_exec_cond(rule->cond, s->be, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001186 ret = acl_pass(ret);
1187 if (rule->cond->pol == ACL_COND_UNLESS)
1188 ret = !ret;
1189
1190 if (ret) {
Jerome Magnin824186b2020-03-29 09:37:12 +02001191 struct server *srv;
1192
1193 if (rule->dynamic) {
1194 struct buffer *tmp = get_trash_chunk();
1195
1196 if (!build_logline(s, tmp->area, tmp->size, &rule->expr))
1197 break;
1198
1199 srv = findserver(s->be, tmp->area);
1200 if (!srv)
1201 break;
1202 }
1203 else
1204 srv = rule->srv.ptr;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001205
Emeric Brun52a91d32017-08-31 14:41:55 +02001206 if ((srv->cur_state != SRV_ST_STOPPED) ||
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001207 (px->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +02001208 (s->flags & SF_FORCE_PRST)) {
1209 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001210 s->target = &srv->obj_type;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001211 break;
1212 }
1213 /* if the server is not UP, let's go on with next rules
1214 * just in case another one is suited.
1215 */
1216 }
1217 }
1218 }
1219
1220 req->analysers &= ~an_bit;
1221 req->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001222 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001223 return 1;
1224}
1225
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001226static inline void sticking_rule_find_target(struct stream *s,
1227 struct stktable *t, struct stksess *ts)
1228{
1229 struct proxy *px = s->be;
1230 struct eb32_node *node;
1231 struct dict_entry *de;
1232 void *ptr;
1233 struct server *srv;
1234
1235 /* Look for the server name previously stored in <t> stick-table */
1236 HA_RWLOCK_RDLOCK(STK_SESS_LOCK, &ts->lock);
Thayne McCombs92149f92020-11-20 01:28:26 -07001237 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_KEY);
1238 de = stktable_data_cast(ptr, server_key);
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001239 HA_RWLOCK_RDUNLOCK(STK_SESS_LOCK, &ts->lock);
1240
1241 if (de) {
Thayne McCombs92149f92020-11-20 01:28:26 -07001242 struct ebpt_node *node;
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001243
Thayne McCombs92149f92020-11-20 01:28:26 -07001244 if (t->server_key_type == STKTABLE_SRV_NAME) {
1245 node = ebis_lookup(&px->conf.used_server_name, de->value.key);
1246 if (node) {
1247 srv = container_of(node, struct server, conf.name);
1248 goto found;
1249 }
1250 } else if (t->server_key_type == STKTABLE_SRV_ADDR) {
1251 HA_RWLOCK_RDLOCK(PROXY_LOCK, &px->lock);
1252 node = ebis_lookup(&px->used_server_addr, de->value.key);
1253 HA_RWLOCK_RDUNLOCK(PROXY_LOCK, &px->lock);
1254 if (node) {
1255 srv = container_of(node, struct server, addr_node);
1256 goto found;
1257 }
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001258 }
1259 }
1260
1261 /* Look for the server ID */
1262 HA_RWLOCK_RDLOCK(STK_SESS_LOCK, &ts->lock);
1263 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_ID);
1264 node = eb32_lookup(&px->conf.used_server_id, stktable_data_cast(ptr, server_id));
1265 HA_RWLOCK_RDUNLOCK(STK_SESS_LOCK, &ts->lock);
1266
1267 if (!node)
1268 return;
1269
1270 srv = container_of(node, struct server, conf.id);
1271 found:
1272 if ((srv->cur_state != SRV_ST_STOPPED) ||
1273 (px->options & PR_O_PERSIST) || (s->flags & SF_FORCE_PRST)) {
1274 s->flags |= SF_DIRECT | SF_ASSIGNED;
1275 s->target = &srv->obj_type;
1276 }
1277}
1278
Emeric Brun1d33b292010-01-04 15:47:17 +01001279/* This stream analyser works on a request. It applies all sticking rules on
1280 * it then returns 1. The data must already be present in the buffer otherwise
1281 * they won't match. It always returns 1.
1282 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001283static int process_sticking_rules(struct stream *s, struct channel *req, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001284{
1285 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001286 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001287 struct sticking_rule *rule;
1288
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001289 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001290
1291 list_for_each_entry(rule, &px->sticking_rules, list) {
1292 int ret = 1 ;
1293 int i;
1294
Willy Tarreau9667a802013-12-09 12:52:13 +01001295 /* Only the first stick store-request of each table is applied
1296 * and other ones are ignored. The purpose is to allow complex
1297 * configurations which look for multiple entries by decreasing
1298 * order of precision and to stop at the first which matches.
1299 * An example could be a store of the IP address from an HTTP
1300 * header first, then from the source if not found.
1301 */
Jerome Magninbee00ad2020-01-16 17:37:21 +01001302 if (rule->flags & STK_IS_STORE) {
1303 for (i = 0; i < s->store_count; i++) {
1304 if (rule->table.t == s->store[i].table)
1305 break;
1306 }
Emeric Brun1d33b292010-01-04 15:47:17 +01001307
Jerome Magninbee00ad2020-01-16 17:37:21 +01001308 if (i != s->store_count)
1309 continue;
1310 }
Emeric Brun1d33b292010-01-04 15:47:17 +01001311
1312 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001313 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001314 ret = acl_pass(ret);
1315 if (rule->cond->pol == ACL_COND_UNLESS)
1316 ret = !ret;
1317 }
1318
1319 if (ret) {
1320 struct stktable_key *key;
1321
Willy Tarreau192252e2015-04-04 01:47:55 +02001322 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 +01001323 if (!key)
1324 continue;
1325
1326 if (rule->flags & STK_IS_MATCH) {
1327 struct stksess *ts;
1328
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001329 if ((ts = stktable_lookup_key(rule->table.t, key)) != NULL) {
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001330 if (!(s->flags & SF_ASSIGNED))
1331 sticking_rule_find_target(s, rule->table.t, ts);
Emeric Brun819fc6f2017-06-13 19:37:32 +02001332 stktable_touch_local(rule->table.t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001333 }
1334 }
1335 if (rule->flags & STK_IS_STORE) {
1336 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
1337 struct stksess *ts;
1338
1339 ts = stksess_new(rule->table.t, key);
1340 if (ts) {
1341 s->store[s->store_count].table = rule->table.t;
1342 s->store[s->store_count++].ts = ts;
1343 }
1344 }
1345 }
1346 }
1347 }
1348
1349 req->analysers &= ~an_bit;
1350 req->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001351 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001352 return 1;
1353}
1354
1355/* This stream analyser works on a response. It applies all store rules on it
1356 * then returns 1. The data must already be present in the buffer otherwise
1357 * they won't match. It always returns 1.
1358 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001359static int process_store_rules(struct stream *s, struct channel *rep, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001360{
1361 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001362 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001363 struct sticking_rule *rule;
1364 int i;
Willy Tarreau9667a802013-12-09 12:52:13 +01001365 int nbreq = s->store_count;
Emeric Brun1d33b292010-01-04 15:47:17 +01001366
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001367 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001368
1369 list_for_each_entry(rule, &px->storersp_rules, list) {
1370 int ret = 1 ;
Emeric Brun1d33b292010-01-04 15:47:17 +01001371
Willy Tarreau9667a802013-12-09 12:52:13 +01001372 /* Only the first stick store-response of each table is applied
1373 * and other ones are ignored. The purpose is to allow complex
1374 * configurations which look for multiple entries by decreasing
1375 * order of precision and to stop at the first which matches.
1376 * An example could be a store of a set-cookie value, with a
1377 * fallback to a parameter found in a 302 redirect.
1378 *
1379 * The store-response rules are not allowed to override the
1380 * store-request rules for the same table, but they may coexist.
1381 * Thus we can have up to one store-request entry and one store-
1382 * response entry for the same table at any time.
1383 */
1384 for (i = nbreq; i < s->store_count; i++) {
1385 if (rule->table.t == s->store[i].table)
1386 break;
1387 }
1388
1389 /* skip existing entries for this table */
1390 if (i < s->store_count)
1391 continue;
1392
Emeric Brun1d33b292010-01-04 15:47:17 +01001393 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001394 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_RES|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001395 ret = acl_pass(ret);
1396 if (rule->cond->pol == ACL_COND_UNLESS)
1397 ret = !ret;
1398 }
1399
1400 if (ret) {
1401 struct stktable_key *key;
1402
Willy Tarreau192252e2015-04-04 01:47:55 +02001403 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 +01001404 if (!key)
1405 continue;
1406
Willy Tarreau37e340c2013-12-06 23:05:21 +01001407 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001408 struct stksess *ts;
1409
1410 ts = stksess_new(rule->table.t, key);
1411 if (ts) {
1412 s->store[s->store_count].table = rule->table.t;
Emeric Brun1d33b292010-01-04 15:47:17 +01001413 s->store[s->store_count++].ts = ts;
1414 }
1415 }
1416 }
1417 }
1418
1419 /* process store request and store response */
1420 for (i = 0; i < s->store_count; i++) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001421 struct stksess *ts;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001422 void *ptr;
Thayne McCombs92149f92020-11-20 01:28:26 -07001423 char *key;
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001424 struct dict_entry *de;
Thayne McCombs92149f92020-11-20 01:28:26 -07001425 struct stktable *t = s->store[i].table;
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001426
Willy Tarreauc93cd162014-05-13 15:54:22 +02001427 if (objt_server(s->target) && objt_server(s->target)->flags & SRV_F_NON_STICK) {
Simon Hormanfa461682011-06-25 09:39:49 +09001428 stksess_free(s->store[i].table, s->store[i].ts);
1429 s->store[i].ts = NULL;
1430 continue;
1431 }
1432
Thayne McCombs92149f92020-11-20 01:28:26 -07001433 ts = stktable_set_entry(t, s->store[i].ts);
Emeric Brun819fc6f2017-06-13 19:37:32 +02001434 if (ts != s->store[i].ts) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001435 /* the entry already existed, we can free ours */
Thayne McCombs92149f92020-11-20 01:28:26 -07001436 stksess_free(t, s->store[i].ts);
Emeric Brun1d33b292010-01-04 15:47:17 +01001437 }
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001438 s->store[i].ts = NULL;
Emeric Brun819fc6f2017-06-13 19:37:32 +02001439
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001440 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Thayne McCombs92149f92020-11-20 01:28:26 -07001441 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_ID);
Willy Tarreaub8d42d02018-09-20 11:11:15 +02001442 stktable_data_cast(ptr, server_id) = __objt_server(s->target)->puid;
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001443 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001444
Thayne McCombs92149f92020-11-20 01:28:26 -07001445 if (t->server_key_type == STKTABLE_SRV_NAME)
1446 key = __objt_server(s->target)->id;
1447 else if (t->server_key_type == STKTABLE_SRV_ADDR)
1448 key = __objt_server(s->target)->addr_node.key;
1449 else
1450 continue;
1451
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001452 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Thayne McCombs92149f92020-11-20 01:28:26 -07001453 de = dict_insert(&server_key_dict, key);
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001454 if (de) {
Thayne McCombs92149f92020-11-20 01:28:26 -07001455 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_KEY);
1456 stktable_data_cast(ptr, server_key) = de;
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001457 }
1458 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
1459
Thayne McCombs92149f92020-11-20 01:28:26 -07001460 stktable_touch_local(t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001461 }
Willy Tarreau2a164ee2010-06-18 09:57:45 +02001462 s->store_count = 0; /* everything is stored */
Emeric Brun1d33b292010-01-04 15:47:17 +01001463
1464 rep->analysers &= ~an_bit;
1465 rep->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001466
1467 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001468 return 1;
1469}
1470
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001471/* This macro is very specific to the function below. See the comments in
Willy Tarreau87b09662015-04-03 00:22:06 +02001472 * process_stream() below to understand the logic and the tests.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001473 */
1474#define UPDATE_ANALYSERS(real, list, back, flag) { \
1475 list = (((list) & ~(flag)) | ~(back)) & (real); \
1476 back = real; \
1477 if (!(list)) \
1478 break; \
1479 if (((list) ^ ((list) & ((list) - 1))) < (flag)) \
1480 continue; \
1481}
1482
Christopher Fauleta9215b72016-05-11 17:06:28 +02001483/* These 2 following macros call an analayzer for the specified channel if the
1484 * right flag is set. The first one is used for "filterable" analyzers. If a
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001485 * stream has some registered filters, pre and post analyaze callbacks are
Christopher Faulet0184ea72017-01-05 14:06:34 +01001486 * called. The second are used for other analyzers (AN_REQ/RES_FLT_* and
Christopher Fauleta9215b72016-05-11 17:06:28 +02001487 * AN_REQ/RES_HTTP_XFER_BODY) */
1488#define FLT_ANALYZE(strm, chn, fun, list, back, flag, ...) \
1489 { \
1490 if ((list) & (flag)) { \
1491 if (HAS_FILTERS(strm)) { \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001492 if (!flt_pre_analyze((strm), (chn), (flag))) \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001493 break; \
1494 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1495 break; \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001496 if (!flt_post_analyze((strm), (chn), (flag))) \
1497 break; \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001498 } \
1499 else { \
1500 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1501 break; \
1502 } \
1503 UPDATE_ANALYSERS((chn)->analysers, (list), \
1504 (back), (flag)); \
1505 } \
1506 }
1507
1508#define ANALYZE(strm, chn, fun, list, back, flag, ...) \
1509 { \
1510 if ((list) & (flag)) { \
1511 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1512 break; \
1513 UPDATE_ANALYSERS((chn)->analysers, (list), \
1514 (back), (flag)); \
1515 } \
1516 }
1517
Willy Tarreau87b09662015-04-03 00:22:06 +02001518/* Processes the client, server, request and response jobs of a stream task,
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001519 * then puts it back to the wait queue in a clean state, or cleans up its
1520 * resources if it must be deleted. Returns in <next> the date the task wants
1521 * to be woken up, or TICK_ETERNITY. In order not to call all functions for
1522 * nothing too many times, the request and response buffers flags are monitored
1523 * and each function is called only if at least another function has changed at
1524 * least one flag it is interested in.
1525 */
Olivier Houchard9f6af332018-05-25 14:04:04 +02001526struct task *process_stream(struct task *t, void *context, unsigned short state)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001527{
Willy Tarreau827aee92011-03-10 16:55:02 +01001528 struct server *srv;
Olivier Houchard9f6af332018-05-25 14:04:04 +02001529 struct stream *s = context;
Willy Tarreaufb0afa72015-04-03 14:46:27 +02001530 struct session *sess = s->sess;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001531 unsigned int rqf_last, rpf_last;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001532 unsigned int rq_prod_last, rq_cons_last;
1533 unsigned int rp_cons_last, rp_prod_last;
Willy Tarreau576507f2010-01-07 00:09:04 +01001534 unsigned int req_ana_back;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001535 struct channel *req, *res;
1536 struct stream_interface *si_f, *si_b;
Willy Tarreau3d07a162019-04-25 19:15:20 +02001537 unsigned int rate;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001538
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001539 DBG_TRACE_ENTER(STRM_EV_STRM_PROC, s);
1540
Willy Tarreau7af4fa92020-06-17 20:49:49 +02001541 activity[tid].stream_calls++;
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01001542
Willy Tarreau8f128b42014-11-28 15:07:47 +01001543 req = &s->req;
1544 res = &s->res;
1545
1546 si_f = &s->si[0];
1547 si_b = &s->si[1];
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001548
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001549 /* First, attempt to receive pending data from I/O layers */
Willy Tarreauade64782018-11-17 19:51:07 +01001550 si_sync_recv(si_f);
1551 si_sync_recv(si_b);
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001552
Willy Tarreau3d07a162019-04-25 19:15:20 +02001553 rate = update_freq_ctr(&s->call_rate, 1);
1554 if (rate >= 100000 && s->call_rate.prev_ctr) { // make sure to wait at least a full second
1555 stream_dump_and_crash(&s->obj_type, read_freq_ctr(&s->call_rate));
1556 }
Olivier Houchardc2aa7112018-09-11 18:27:21 +02001557
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001558 /* this data may be no longer valid, clear it */
Willy Tarreaueee5b512015-04-03 23:46:31 +02001559 if (s->txn)
1560 memset(&s->txn->auth, 0, sizeof(s->txn->auth));
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001561
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02001562 /* This flag must explicitly be set every time */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001563 req->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
1564 res->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001565
1566 /* Keep a copy of req/rep flags so that we can detect shutdowns */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001567 rqf_last = req->flags & ~CF_MASK_ANALYSER;
1568 rpf_last = res->flags & ~CF_MASK_ANALYSER;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001569
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001570 /* we don't want the stream interface functions to recursively wake us up */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001571 si_f->flags |= SI_FL_DONT_WAKE;
1572 si_b->flags |= SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001573
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001574 /* update pending events */
Olivier Houchard9f6af332018-05-25 14:04:04 +02001575 s->pending_events |= (state & TASK_WOKEN_ANY);
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001576
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001577 /* 1a: Check for low level timeouts if needed. We just set a flag on
1578 * stream interfaces when their timeouts have expired.
1579 */
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001580 if (unlikely(s->pending_events & TASK_WOKEN_TIMER)) {
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001581 si_check_timeouts(si_f);
1582 si_check_timeouts(si_b);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001583
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001584 /* check channel timeouts, and close the corresponding stream interfaces
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001585 * for future reads or writes. Note: this will also concern upper layers
1586 * but we do not touch any other flag. We must be careful and correctly
1587 * detect state changes when calling them.
1588 */
1589
Willy Tarreau8f128b42014-11-28 15:07:47 +01001590 channel_check_timeouts(req);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001591
Willy Tarreau8f128b42014-11-28 15:07:47 +01001592 if (unlikely((req->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1593 si_b->flags |= SI_FL_NOLINGER;
1594 si_shutw(si_b);
Willy Tarreau14641402009-12-29 14:49:56 +01001595 }
1596
Willy Tarreau8f128b42014-11-28 15:07:47 +01001597 if (unlikely((req->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1598 if (si_f->flags & SI_FL_NOHALF)
1599 si_f->flags |= SI_FL_NOLINGER;
1600 si_shutr(si_f);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001601 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001602
Willy Tarreau8f128b42014-11-28 15:07:47 +01001603 channel_check_timeouts(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001604
Willy Tarreau8f128b42014-11-28 15:07:47 +01001605 if (unlikely((res->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1606 si_f->flags |= SI_FL_NOLINGER;
1607 si_shutw(si_f);
Willy Tarreau14641402009-12-29 14:49:56 +01001608 }
1609
Willy Tarreau8f128b42014-11-28 15:07:47 +01001610 if (unlikely((res->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1611 if (si_b->flags & SI_FL_NOHALF)
1612 si_b->flags |= SI_FL_NOLINGER;
1613 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001614 }
Willy Tarreau798f4322012-11-08 14:49:17 +01001615
Christopher Fauleta00d8172016-11-10 14:58:05 +01001616 if (HAS_FILTERS(s))
1617 flt_stream_check_timeouts(s);
1618
Willy Tarreau798f4322012-11-08 14:49:17 +01001619 /* Once in a while we're woken up because the task expires. But
1620 * this does not necessarily mean that a timeout has been reached.
Willy Tarreau87b09662015-04-03 00:22:06 +02001621 * So let's not run a whole stream processing if only an expiration
Willy Tarreau798f4322012-11-08 14:49:17 +01001622 * timeout needs to be refreshed.
1623 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001624 if (!((req->flags | res->flags) &
Willy Tarreau798f4322012-11-08 14:49:17 +01001625 (CF_SHUTR|CF_READ_ACTIVITY|CF_READ_TIMEOUT|CF_SHUTW|
Willy Tarreauede3d882018-10-24 17:17:56 +02001626 CF_WRITE_ACTIVITY|CF_WRITE_TIMEOUT|CF_ANA_TIMEOUT)) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01001627 !((si_f->flags | si_b->flags) & (SI_FL_EXP|SI_FL_ERR)) &&
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001628 ((s->pending_events & TASK_WOKEN_ANY) == TASK_WOKEN_TIMER)) {
Willy Tarreau5fb04712016-05-04 10:18:37 +02001629 si_f->flags &= ~SI_FL_DONT_WAKE;
1630 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau798f4322012-11-08 14:49:17 +01001631 goto update_exp_and_leave;
Willy Tarreau5fb04712016-05-04 10:18:37 +02001632 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001633 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001634
Willy Tarreau829bd472019-06-06 09:17:23 +02001635 resync_stream_interface:
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001636 /* below we may emit error messages so we have to ensure that we have
1637 * our buffers properly allocated.
1638 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001639 if (!stream_alloc_work_buffer(s)) {
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001640 /* No buffer available, we've been subscribed to the list of
1641 * buffer waiters, let's wait for our turn.
1642 */
Willy Tarreau5fb04712016-05-04 10:18:37 +02001643 si_f->flags &= ~SI_FL_DONT_WAKE;
1644 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001645 goto update_exp_and_leave;
1646 }
1647
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001648 /* 1b: check for low-level errors reported at the stream interface.
1649 * First we check if it's a retryable error (in which case we don't
1650 * want to tell the buffer). Otherwise we report the error one level
1651 * upper by setting flags into the buffers. Note that the side towards
1652 * the client cannot have connect (hence retryable) errors. Also, the
1653 * connection setup code must be able to deal with any type of abort.
1654 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001655 srv = objt_server(s->target);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001656 if (unlikely(si_f->flags & SI_FL_ERR)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001657 if (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001658 si_shutr(si_f);
1659 si_shutw(si_f);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001660 si_report_error(si_f);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001661 if (!(req->analysers) && !(res->analysers)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001662 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1663 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001664 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001665 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001666 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001667 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001668 if (!(s->flags & SF_ERR_MASK))
1669 s->flags |= SF_ERR_CLICL;
1670 if (!(s->flags & SF_FINST_MASK))
1671 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001672 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001673 }
1674 }
1675
Willy Tarreau8f128b42014-11-28 15:07:47 +01001676 if (unlikely(si_b->flags & SI_FL_ERR)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001677 if (si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001678 si_shutr(si_b);
1679 si_shutw(si_b);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001680 si_report_error(si_b);
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001681 _HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001682 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001683 _HA_ATOMIC_ADD(&srv->counters.failed_resp, 1);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001684 if (!(req->analysers) && !(res->analysers)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001685 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1686 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001687 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001688 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001689 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001690 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001691 if (!(s->flags & SF_ERR_MASK))
1692 s->flags |= SF_ERR_SRVCL;
1693 if (!(s->flags & SF_FINST_MASK))
1694 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001695 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001696 }
1697 /* note: maybe we should process connection errors here ? */
1698 }
1699
Willy Tarreau4f283fa2019-06-05 14:34:03 +02001700 if (si_state_in(si_b->state, SI_SB_CON|SI_SB_RDY)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001701 /* we were trying to establish a connection on the server side,
1702 * maybe it succeeded, maybe it failed, maybe we timed out, ...
1703 */
Willy Tarreaud66ed882019-06-05 18:02:04 +02001704 if (si_b->state == SI_ST_RDY)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001705 back_handle_st_rdy(s);
Willy Tarreaud66ed882019-06-05 18:02:04 +02001706 else if (si_b->state == SI_ST_CON)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001707 back_handle_st_con(s);
Willy Tarreaud66ed882019-06-05 18:02:04 +02001708
1709 if (si_b->state == SI_ST_CER)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001710 back_handle_st_cer(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001711 else if (si_b->state == SI_ST_EST)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001712 back_establish(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001713
1714 /* state is now one of SI_ST_CON (still in progress), SI_ST_EST
1715 * (established), SI_ST_DIS (abort), SI_ST_CLO (last error),
1716 * SI_ST_ASS/SI_ST_TAR/SI_ST_REQ for retryable errors.
1717 */
1718 }
1719
Willy Tarreau8f128b42014-11-28 15:07:47 +01001720 rq_prod_last = si_f->state;
1721 rq_cons_last = si_b->state;
1722 rp_cons_last = si_f->state;
1723 rp_prod_last = si_b->state;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001724
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001725 /* Check for connection closure */
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001726 DBG_TRACE_POINT(STRM_EV_STRM_PROC, s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001727
1728 /* nothing special to be done on client side */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001729 if (unlikely(si_f->state == SI_ST_DIS))
1730 si_f->state = SI_ST_CLO;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001731
1732 /* When a server-side connection is released, we have to count it and
1733 * check for pending connections on this server.
1734 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001735 if (unlikely(si_b->state == SI_ST_DIS)) {
1736 si_b->state = SI_ST_CLO;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001737 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01001738 if (srv) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001739 if (s->flags & SF_CURR_SESS) {
1740 s->flags &= ~SF_CURR_SESS;
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001741 _HA_ATOMIC_SUB(&srv->cur_sess, 1);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001742 }
1743 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001744 if (may_dequeue_tasks(srv, s->be))
1745 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001746 }
1747 }
1748
1749 /*
1750 * Note: of the transient states (REQ, CER, DIS), only REQ may remain
1751 * at this point.
1752 */
1753
Willy Tarreau0be0ef92009-03-08 19:20:25 +01001754 resync_request:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001755 /* Analyse request */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001756 if (((req->flags & ~rqf_last) & CF_MASK_ANALYSER) ||
1757 ((req->flags ^ rqf_last) & CF_MASK_STATIC) ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01001758 (req->analysers && (req->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01001759 si_f->state != rq_prod_last ||
1760 si_b->state != rq_cons_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001761 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001762 unsigned int flags = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001763
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001764 if (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001765 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001766 unsigned int ana_list;
1767 unsigned int ana_back;
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001768
Willy Tarreau90deb182010-01-07 00:20:41 +01001769 /* it's up to the analysers to stop new connections,
1770 * disable reading or closing. Note: if an analyser
1771 * disables any of these bits, it is responsible for
1772 * enabling them again when it disables itself, so
1773 * that other analysers are called in similar conditions.
1774 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001775 channel_auto_read(req);
1776 channel_auto_connect(req);
1777 channel_auto_close(req);
Willy Tarreauedcf6682008-11-30 23:15:34 +01001778
1779 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01001780 * req->analysers, following the bit order from LSB
Willy Tarreauedcf6682008-11-30 23:15:34 +01001781 * to MSB. The analysers must remove themselves from
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001782 * the list when not needed. Any analyser may return 0
1783 * to break out of the loop, either because of missing
1784 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02001785 * kill the stream. We loop at least once through each
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001786 * analyser, and we may loop again if other analysers
1787 * are added in the middle.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001788 *
1789 * We build a list of analysers to run. We evaluate all
1790 * of these analysers in the order of the lower bit to
1791 * the higher bit. This ordering is very important.
1792 * An analyser will often add/remove other analysers,
1793 * including itself. Any changes to itself have no effect
1794 * on the loop. If it removes any other analysers, we
1795 * want those analysers not to be called anymore during
1796 * this loop. If it adds an analyser that is located
1797 * after itself, we want it to be scheduled for being
1798 * processed during the loop. If it adds an analyser
1799 * which is located before it, we want it to switch to
1800 * it immediately, even if it has already been called
1801 * once but removed since.
1802 *
1803 * In order to achieve this, we compare the analyser
1804 * list after the call with a copy of it before the
1805 * call. The work list is fed with analyser bits that
1806 * appeared during the call. Then we compare previous
1807 * work list with the new one, and check the bits that
1808 * appeared. If the lowest of these bits is lower than
1809 * the current bit, it means we have enabled a previous
1810 * analyser and must immediately loop again.
Willy Tarreauedcf6682008-11-30 23:15:34 +01001811 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001812
Willy Tarreau8f128b42014-11-28 15:07:47 +01001813 ana_list = ana_back = req->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001814 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001815 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01001816 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_FE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001817 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_FE);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001818 FLT_ANALYZE(s, req, http_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_HTTP);
1819 FLT_ANALYZE(s, req, http_wait_for_request_body, ana_list, ana_back, AN_REQ_HTTP_BODY);
1820 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 +02001821 FLT_ANALYZE(s, req, process_switching_rules, ana_list, ana_back, AN_REQ_SWITCHING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001822 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001823 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_BE);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001824 FLT_ANALYZE(s, req, http_process_req_common, ana_list, ana_back, AN_REQ_HTTP_PROCESS_BE, s->be);
1825 FLT_ANALYZE(s, req, http_process_tarpit, ana_list, ana_back, AN_REQ_HTTP_TARPIT);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001826 FLT_ANALYZE(s, req, process_server_rules, ana_list, ana_back, AN_REQ_SRV_RULES);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001827 FLT_ANALYZE(s, req, http_process_request, ana_list, ana_back, AN_REQ_HTTP_INNER);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001828 FLT_ANALYZE(s, req, tcp_persist_rdp_cookie, ana_list, ana_back, AN_REQ_PRST_RDP_COOKIE);
1829 FLT_ANALYZE(s, req, process_sticking_rules, ana_list, ana_back, AN_REQ_STICKING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001830 ANALYZE (s, req, flt_analyze_http_headers, ana_list, ana_back, AN_REQ_FLT_HTTP_HDRS);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001831 ANALYZE (s, req, http_request_forward_body, ana_list, ana_back, AN_REQ_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02001832 ANALYZE (s, req, pcli_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001833 ANALYZE (s, req, flt_xfer_data, ana_list, ana_back, AN_REQ_FLT_XFER_DATA);
1834 ANALYZE (s, req, flt_end_analyze, ana_list, ana_back, AN_REQ_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01001835 break;
1836 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001837 }
Willy Tarreau84455332009-03-15 22:34:05 +01001838
Willy Tarreau8f128b42014-11-28 15:07:47 +01001839 rq_prod_last = si_f->state;
1840 rq_cons_last = si_b->state;
1841 req->flags &= ~CF_WAKE_ONCE;
1842 rqf_last = req->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001843
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02001844 if ((req->flags ^ flags) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001845 goto resync_request;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001846 }
1847
Willy Tarreau576507f2010-01-07 00:09:04 +01001848 /* we'll monitor the request analysers while parsing the response,
1849 * because some response analysers may indirectly enable new request
1850 * analysers (eg: HTTP keep-alive).
1851 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001852 req_ana_back = req->analysers;
Willy Tarreau576507f2010-01-07 00:09:04 +01001853
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001854 resync_response:
1855 /* Analyse response */
1856
Willy Tarreau8f128b42014-11-28 15:07:47 +01001857 if (((res->flags & ~rpf_last) & CF_MASK_ANALYSER) ||
1858 (res->flags ^ rpf_last) & CF_MASK_STATIC ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01001859 (res->analysers && (res->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01001860 si_f->state != rp_cons_last ||
1861 si_b->state != rp_prod_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001862 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001863 unsigned int flags = res->flags;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001864
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001865 if (si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001866 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001867 unsigned int ana_list;
1868 unsigned int ana_back;
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001869
Willy Tarreau90deb182010-01-07 00:20:41 +01001870 /* it's up to the analysers to stop disable reading or
1871 * closing. Note: if an analyser disables any of these
1872 * bits, it is responsible for enabling them again when
1873 * it disables itself, so that other analysers are called
1874 * in similar conditions.
1875 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001876 channel_auto_read(res);
1877 channel_auto_close(res);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001878
1879 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01001880 * res->analysers, following the bit order from LSB
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001881 * to MSB. The analysers must remove themselves from
1882 * the list when not needed. Any analyser may return 0
1883 * to break out of the loop, either because of missing
1884 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02001885 * kill the stream. We loop at least once through each
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001886 * analyser, and we may loop again if other analysers
1887 * are added in the middle.
1888 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001889
Willy Tarreau8f128b42014-11-28 15:07:47 +01001890 ana_list = ana_back = res->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001891 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001892 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01001893 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_FE);
1894 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001895 FLT_ANALYZE(s, res, tcp_inspect_response, ana_list, ana_back, AN_RES_INSPECT);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001896 FLT_ANALYZE(s, res, http_wait_for_response, ana_list, ana_back, AN_RES_WAIT_HTTP);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001897 FLT_ANALYZE(s, res, process_store_rules, ana_list, ana_back, AN_RES_STORE_RULES);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001898 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 +01001899 ANALYZE (s, res, flt_analyze_http_headers, ana_list, ana_back, AN_RES_FLT_HTTP_HDRS);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001900 ANALYZE (s, res, http_response_forward_body, ana_list, ana_back, AN_RES_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02001901 ANALYZE (s, res, pcli_wait_for_response, ana_list, ana_back, AN_RES_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001902 ANALYZE (s, res, flt_xfer_data, ana_list, ana_back, AN_RES_FLT_XFER_DATA);
1903 ANALYZE (s, res, flt_end_analyze, ana_list, ana_back, AN_RES_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01001904 break;
1905 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001906 }
1907
Willy Tarreau8f128b42014-11-28 15:07:47 +01001908 rp_cons_last = si_f->state;
1909 rp_prod_last = si_b->state;
Christopher Fauletcdaea892017-07-06 15:49:30 +02001910 res->flags &= ~CF_WAKE_ONCE;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001911 rpf_last = res->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001912
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02001913 if ((res->flags ^ flags) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001914 goto resync_response;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001915 }
1916
Willy Tarreau576507f2010-01-07 00:09:04 +01001917 /* maybe someone has added some request analysers, so we must check and loop */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001918 if (req->analysers & ~req_ana_back)
Willy Tarreau576507f2010-01-07 00:09:04 +01001919 goto resync_request;
1920
Willy Tarreau8f128b42014-11-28 15:07:47 +01001921 if ((req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0499e352010-12-17 07:13:42 +01001922 goto resync_request;
1923
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001924 /* FIXME: here we should call protocol handlers which rely on
1925 * both buffers.
1926 */
1927
1928
1929 /*
Willy Tarreau87b09662015-04-03 00:22:06 +02001930 * Now we propagate unhandled errors to the stream. Normally
Willy Tarreauae526782010-03-04 20:34:23 +01001931 * we're just in a data phase here since it means we have not
1932 * seen any analyser who could set an error status.
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001933 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001934 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001935 if (unlikely(!(s->flags & SF_ERR_MASK))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001936 if (req->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001937 /* Report it if the client got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001938 req->analysers = 0;
1939 if (req->flags & CF_READ_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001940 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1941 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001942 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001943 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001944 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001945 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001946 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01001947 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001948 else if (req->flags & CF_READ_TIMEOUT) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001949 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1950 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001951 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001952 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001953 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001954 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001955 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01001956 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001957 else if (req->flags & CF_WRITE_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001958 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1959 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001960 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001961 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001962 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001963 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001964 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01001965 }
1966 else {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001967 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1968 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001969 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001970 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001971 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001972 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001973 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01001974 }
Willy Tarreau84455332009-03-15 22:34:05 +01001975 sess_set_term_flags(s);
Christopher Faulet5e1a9d72019-04-23 17:34:22 +02001976
1977 /* Abort the request if a client error occurred while
1978 * the backend stream-interface is in the SI_ST_INI
1979 * state. It is switched into the SI_ST_CLO state and
1980 * the request channel is erased. */
1981 if (si_b->state == SI_ST_INI) {
1982 si_b->state = SI_ST_CLO;
1983 channel_abort(req);
1984 if (IS_HTX_STRM(s))
1985 channel_htx_erase(req, htxbuf(&req->buf));
1986 else
1987 channel_erase(req);
1988 }
Willy Tarreau84455332009-03-15 22:34:05 +01001989 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001990 else if (res->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001991 /* Report it if the server got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001992 res->analysers = 0;
1993 if (res->flags & CF_READ_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001994 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1995 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001996 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001997 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001998 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001999 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002000 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002001 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002002 else if (res->flags & CF_READ_TIMEOUT) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002003 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
2004 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01002005 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01002006 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002007 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002008 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002009 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002010 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002011 else if (res->flags & CF_WRITE_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002012 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
2013 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01002014 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01002015 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002016 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002017 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002018 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002019 }
2020 else {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002021 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
2022 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01002023 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01002024 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002025 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002026 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002027 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01002028 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002029 sess_set_term_flags(s);
2030 }
Willy Tarreau84455332009-03-15 22:34:05 +01002031 }
2032
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002033 /*
2034 * Here we take care of forwarding unhandled data. This also includes
2035 * connection establishments and shutdown requests.
2036 */
2037
2038
Ilya Shipitsinb8888ab2021-01-06 21:20:16 +05002039 /* If no one is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002040 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002041 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002042 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002043 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02002044 if (unlikely((!req->analysers || (req->analysers == AN_REQ_FLT_END && !(req->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002045 !(req->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002046 (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002047 (req->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002048 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002049 * attached to it. If any data are left in, we'll permit them to
2050 * move.
2051 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002052 channel_auto_read(req);
2053 channel_auto_connect(req);
2054 channel_auto_close(req);
Willy Tarreau5bd8c372009-01-19 00:32:22 +01002055
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002056 if (IS_HTX_STRM(s)) {
2057 struct htx *htx = htxbuf(&req->buf);
2058
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002059 /* We'll let data flow between the producer (if still connected)
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002060 * to the consumer.
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002061 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002062 co_set_data(req, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002063 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002064 channel_htx_forward_forever(req, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002065 }
2066 else {
2067 /* We'll let data flow between the producer (if still connected)
2068 * to the consumer (which might possibly not be connected yet).
2069 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002070 c_adv(req, ci_data(req));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002071 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2072 channel_forward_forever(req);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002073 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002074 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002075
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002076 /* check if it is wise to enable kernel splicing to forward request data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002077 if (!(req->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2078 req->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002079 (global.tune.options & GTUNE_USE_SPLICE) &&
Christopher Faulet276c1e02019-11-05 16:49:23 +01002080 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->rcv_pipe &&
2081 __objt_cs(si_f->end)->conn->mux && __objt_cs(si_f->end)->conn->mux->rcv_pipe) &&
2082 (objt_cs(si_b->end) && __objt_cs(si_b->end)->conn->xprt && __objt_cs(si_b->end)->conn->xprt->snd_pipe &&
2083 __objt_cs(si_b->end)->conn->mux && __objt_cs(si_b->end)->conn->mux->snd_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002084 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002085 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_REQ) ||
2086 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002087 (req->flags & CF_STREAMER_FAST)))) {
2088 req->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002089 }
2090
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002091 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002092 rqf_last = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002093
Willy Tarreau520d95e2009-09-19 21:04:57 +02002094 /* it's possible that an upper layer has requested a connection setup or abort.
2095 * There are 2 situations where we decide to establish a new connection :
2096 * - there are data scheduled for emission in the buffer
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002097 * - the CF_AUTO_CONNECT flag is set (active connection)
Willy Tarreau520d95e2009-09-19 21:04:57 +02002098 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002099 if (si_b->state == SI_ST_INI) {
Christopher Faulet5e1a9d72019-04-23 17:34:22 +02002100 if (!(req->flags & CF_SHUTW)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002101 if ((req->flags & CF_AUTO_CONNECT) || !channel_is_empty(req)) {
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002102 /* If we have an appctx, there is no connect method, so we
2103 * immediately switch to the connected state, otherwise we
2104 * perform a connection request.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002105 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002106 si_b->state = SI_ST_REQ; /* new connection requested */
2107 si_b->conn_retries = s->be->conn_retries;
Willy Tarreau520d95e2009-09-19 21:04:57 +02002108 }
Willy Tarreau73201222009-08-16 18:27:24 +02002109 }
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002110 else {
Willy Tarreau0542c8b2017-11-24 15:01:10 +01002111 si_release_endpoint(si_b);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002112 si_b->state = SI_ST_CLO; /* shutw+ini = abort */
2113 channel_shutw_now(req); /* fix buffer flags upon abort */
2114 channel_shutr_now(res);
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002115 }
Willy Tarreau92795622009-03-06 12:51:23 +01002116 }
2117
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002118
2119 /* we may have a pending connection request, or a connection waiting
2120 * for completion.
2121 */
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002122 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 +02002123 /* prune the request variables and swap to the response variables. */
2124 if (s->vars_reqres.scope != SCOPE_RES) {
Jerome Magnin2f44e882019-11-09 18:00:47 +01002125 if (!LIST_ISEMPTY(&s->vars_reqres.head))
Willy Tarreaucda7f3f2018-10-28 13:44:36 +01002126 vars_prune(&s->vars_reqres, s->sess, s);
Jerome Magnin2f44e882019-11-09 18:00:47 +01002127 vars_init(&s->vars_reqres, SCOPE_RES);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +02002128 }
2129
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002130 do {
2131 /* nb: step 1 might switch from QUE to ASS, but we first want
2132 * to give a chance to step 2 to perform a redirect if needed.
2133 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002134 if (si_b->state != SI_ST_REQ)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002135 back_try_conn_req(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002136 if (si_b->state == SI_ST_REQ)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002137 back_handle_st_req(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002138
Willy Tarreauada4c582020-03-04 16:42:03 +01002139 /* get a chance to complete an immediate connection setup */
2140 if (si_b->state == SI_ST_RDY)
2141 goto resync_stream_interface;
2142
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +01002143 /* applets directly go to the ESTABLISHED state. Similarly,
2144 * servers experience the same fate when their connection
2145 * is reused.
2146 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002147 if (unlikely(si_b->state == SI_ST_EST))
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002148 back_establish(s);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01002149
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002150 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002151 if (si_b->state == SI_ST_ASS && srv && srv->rdr_len && (s->flags & SF_REDIRECTABLE))
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02002152 http_perform_server_redirect(s, si_b);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002153 } while (si_b->state == SI_ST_ASS);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002154 }
2155
Willy Tarreau829bd472019-06-06 09:17:23 +02002156 /* Let's see if we can send the pending request now */
2157 si_sync_send(si_b);
2158
2159 /*
2160 * Now forward all shutdown requests between both sides of the request buffer
2161 */
2162
2163 /* first, let's check if the request buffer needs to shutdown(write), which may
2164 * happen either because the input is closed or because we want to force a close
2165 * once the server has begun to respond. If a half-closed timeout is set, we adjust
2166 * the other side's timeout as well.
2167 */
2168 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
2169 (CF_AUTO_CLOSE|CF_SHUTR))) {
2170 channel_shutw_now(req);
2171 }
2172
2173 /* shutdown(write) pending */
2174 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2175 channel_is_empty(req))) {
2176 if (req->flags & CF_READ_ERROR)
2177 si_b->flags |= SI_FL_NOLINGER;
2178 si_shutw(si_b);
2179 }
2180
2181 /* shutdown(write) done on server side, we must stop the client too */
2182 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW &&
2183 !req->analysers))
2184 channel_shutr_now(req);
2185
2186 /* shutdown(read) pending */
2187 if (unlikely((req->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2188 if (si_f->flags & SI_FL_NOHALF)
2189 si_f->flags |= SI_FL_NOLINGER;
2190 si_shutr(si_f);
2191 }
2192
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002193 /* Benchmarks have shown that it's optimal to do a full resync now */
Willy Tarreau829bd472019-06-06 09:17:23 +02002194 if (si_f->state == SI_ST_DIS ||
2195 si_state_in(si_b->state, SI_SB_RDY|SI_SB_DIS) ||
2196 (si_f->flags & SI_FL_ERR && si_f->state != SI_ST_CLO) ||
2197 (si_b->flags & SI_FL_ERR && si_b->state != SI_ST_CLO))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002198 goto resync_stream_interface;
2199
Willy Tarreau815a9b22010-07-27 17:15:12 +02002200 /* otherwise we want to check if we need to resync the req buffer or not */
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02002201 if ((req->flags ^ rqf_last) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002202 goto resync_request;
2203
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002204 /* perform output updates to the response buffer */
Willy Tarreau84455332009-03-15 22:34:05 +01002205
Ilya Shipitsinb8888ab2021-01-06 21:20:16 +05002206 /* If no one is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002207 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002208 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002209 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002210 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02002211 if (unlikely((!res->analysers || (res->analysers == AN_RES_FLT_END && !(res->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002212 !(res->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002213 si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002214 (res->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002215 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002216 * attached to it. If any data are left in, we'll permit them to
2217 * move.
2218 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002219 channel_auto_read(res);
2220 channel_auto_close(res);
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002221
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002222 if (IS_HTX_STRM(s)) {
2223 struct htx *htx = htxbuf(&res->buf);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002224
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002225 /* We'll let data flow between the producer (if still connected)
2226 * to the consumer.
2227 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002228 co_set_data(res, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002229 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002230 channel_htx_forward_forever(res, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002231 }
2232 else {
2233 /* We'll let data flow between the producer (if still connected)
2234 * to the consumer.
2235 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002236 c_adv(res, ci_data(res));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002237 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2238 channel_forward_forever(res);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002239 }
Willy Tarreau42529c32015-07-09 18:38:57 +02002240
Willy Tarreauce887fd2012-05-12 12:50:00 +02002241 /* if we have no analyser anymore in any direction and have a
Willy Tarreau05cdd962014-05-10 14:30:07 +02002242 * tunnel timeout set, use it now. Note that we must respect
2243 * the half-closed timeouts as well.
Willy Tarreauce887fd2012-05-12 12:50:00 +02002244 */
Amaury Denoyellefb504432020-12-10 13:43:53 +01002245 if (!req->analysers && s->tunnel_timeout) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002246 req->rto = req->wto = res->rto = res->wto =
Amaury Denoyellefb504432020-12-10 13:43:53 +01002247 s->tunnel_timeout;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002248
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002249 if ((req->flags & CF_SHUTR) && tick_isset(sess->fe->timeout.clientfin))
2250 res->wto = sess->fe->timeout.clientfin;
Willy Tarreau8f128b42014-11-28 15:07:47 +01002251 if ((req->flags & CF_SHUTW) && tick_isset(s->be->timeout.serverfin))
2252 res->rto = s->be->timeout.serverfin;
2253 if ((res->flags & CF_SHUTR) && tick_isset(s->be->timeout.serverfin))
2254 req->wto = s->be->timeout.serverfin;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002255 if ((res->flags & CF_SHUTW) && tick_isset(sess->fe->timeout.clientfin))
2256 req->rto = sess->fe->timeout.clientfin;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002257
Willy Tarreau8f128b42014-11-28 15:07:47 +01002258 req->rex = tick_add(now_ms, req->rto);
2259 req->wex = tick_add(now_ms, req->wto);
2260 res->rex = tick_add(now_ms, res->rto);
2261 res->wex = tick_add(now_ms, res->wto);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002262 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002263 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002264
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002265 /* check if it is wise to enable kernel splicing to forward response data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002266 if (!(res->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2267 res->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002268 (global.tune.options & GTUNE_USE_SPLICE) &&
Christopher Faulet276c1e02019-11-05 16:49:23 +01002269 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->snd_pipe &&
2270 __objt_cs(si_f->end)->conn->mux && __objt_cs(si_f->end)->conn->mux->snd_pipe) &&
2271 (objt_cs(si_b->end) && __objt_cs(si_b->end)->conn->xprt && __objt_cs(si_b->end)->conn->xprt->rcv_pipe &&
2272 __objt_cs(si_b->end)->conn->mux && __objt_cs(si_b->end)->conn->mux->rcv_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002273 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002274 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_RTR) ||
2275 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002276 (res->flags & CF_STREAMER_FAST)))) {
2277 res->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002278 }
2279
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002280 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002281 rpf_last = res->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002282
Willy Tarreau829bd472019-06-06 09:17:23 +02002283 /* Let's see if we can send the pending response now */
2284 si_sync_send(si_f);
2285
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002286 /*
2287 * Now forward all shutdown requests between both sides of the buffer
2288 */
2289
2290 /*
2291 * FIXME: this is probably where we should produce error responses.
2292 */
2293
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002294 /* first, let's check if the response buffer needs to shutdown(write) */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002295 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau05cdd962014-05-10 14:30:07 +02002296 (CF_AUTO_CLOSE|CF_SHUTR))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002297 channel_shutw_now(res);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002298 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002299
2300 /* shutdown(write) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002301 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2302 channel_is_empty(res))) {
2303 si_shutw(si_f);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002304 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002305
2306 /* shutdown(write) done on the client side, we must stop the server too */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002307 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW) &&
2308 !res->analysers)
2309 channel_shutr_now(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002310
2311 /* shutdown(read) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002312 if (unlikely((res->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2313 if (si_b->flags & SI_FL_NOHALF)
2314 si_b->flags |= SI_FL_NOLINGER;
2315 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002316 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002317
Willy Tarreau829bd472019-06-06 09:17:23 +02002318 if (si_f->state == SI_ST_DIS ||
2319 si_state_in(si_b->state, SI_SB_RDY|SI_SB_DIS) ||
2320 (si_f->flags & SI_FL_ERR && si_f->state != SI_ST_CLO) ||
2321 (si_b->flags & SI_FL_ERR && si_b->state != SI_ST_CLO))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002322 goto resync_stream_interface;
2323
Willy Tarreau3c5c0662019-06-06 14:32:49 +02002324 if ((req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002325 goto resync_request;
2326
Willy Tarreau8f128b42014-11-28 15:07:47 +01002327 if ((res->flags ^ rpf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002328 goto resync_response;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002329
Willy Tarreau829bd472019-06-06 09:17:23 +02002330 if (((req->flags ^ rqf_last) | (res->flags ^ rpf_last)) & CF_MASK_ANALYSER)
2331 goto resync_request;
2332
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002333 /* we're interested in getting wakeups again */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002334 si_f->flags &= ~SI_FL_DONT_WAKE;
2335 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002336
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002337 /* This is needed only when debugging is enabled, to indicate
2338 * client-side or server-side close. Please note that in the unlikely
2339 * event where both sides would close at once, the sequence is reported
2340 * on the server side first.
2341 */
2342 if (unlikely((global.mode & MODE_DEBUG) &&
2343 (!(global.mode & MODE_QUIET) ||
2344 (global.mode & MODE_VERBOSE)))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002345 if (si_b->state == SI_ST_CLO &&
2346 si_b->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002347 chunk_printf(&trash, "%08x:%s.srvcls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002348 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002349 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2350 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01002351 DISGUISE(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002352 }
2353
Willy Tarreau8f128b42014-11-28 15:07:47 +01002354 if (si_f->state == SI_ST_CLO &&
2355 si_f->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002356 chunk_printf(&trash, "%08x:%s.clicls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002357 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002358 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2359 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01002360 DISGUISE(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002361 }
2362 }
2363
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002364 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 +02002365 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED) && !(s->flags & SF_IGNORE))
Willy Tarreau87b09662015-04-03 00:22:06 +02002366 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002367
Willy Tarreaud14844a2018-11-08 18:15:29 +01002368 si_update_both(si_f, si_b);
Olivier Houchard53216e72018-10-10 15:46:36 +02002369
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002370 /* Trick: if a request is being waiting for the server to respond,
2371 * and if we know the server can timeout, we don't want the timeout
2372 * to expire on the client side first, but we're still interested
2373 * in passing data from the client to the server (eg: POST). Thus,
2374 * we can cancel the client's request timeout if the server's
2375 * request timeout is set and the server has not yet sent a response.
2376 */
2377
Willy Tarreau8f128b42014-11-28 15:07:47 +01002378 if ((res->flags & (CF_AUTO_CLOSE|CF_SHUTR)) == 0 &&
2379 (tick_isset(req->wex) || tick_isset(res->rex))) {
2380 req->flags |= CF_READ_NOEXP;
2381 req->rex = TICK_ETERNITY;
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002382 }
2383
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002384 /* Reset pending events now */
2385 s->pending_events = 0;
2386
Willy Tarreau798f4322012-11-08 14:49:17 +01002387 update_exp_and_leave:
Willy Tarreau5fb04712016-05-04 10:18:37 +02002388 /* Note: please ensure that if you branch here you disable SI_FL_DONT_WAKE */
Christopher Fauleta00d8172016-11-10 14:58:05 +01002389 t->expire = tick_first((tick_is_expired(t->expire, now_ms) ? 0 : t->expire),
2390 tick_first(tick_first(req->rex, req->wex),
2391 tick_first(res->rex, res->wex)));
Willy Tarreaudef0d222016-11-08 22:03:00 +01002392 if (!req->analysers)
2393 req->analyse_exp = TICK_ETERNITY;
2394
2395 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED) &&
2396 (!tick_isset(req->analyse_exp) || tick_is_expired(req->analyse_exp, now_ms)))
2397 req->analyse_exp = tick_add(now_ms, 5000);
2398
2399 t->expire = tick_first(t->expire, req->analyse_exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002400
Willy Tarreau9a398be2017-11-10 17:14:23 +01002401 t->expire = tick_first(t->expire, res->analyse_exp);
2402
Willy Tarreau8f128b42014-11-28 15:07:47 +01002403 if (si_f->exp)
2404 t->expire = tick_first(t->expire, si_f->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002405
Willy Tarreau8f128b42014-11-28 15:07:47 +01002406 if (si_b->exp)
2407 t->expire = tick_first(t->expire, si_b->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002408
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002409 s->pending_events &= ~(TASK_WOKEN_TIMER | TASK_WOKEN_RES);
Willy Tarreau87b09662015-04-03 00:22:06 +02002410 stream_release_buffers(s);
Christopher Fauleteea8fc72019-11-05 16:18:10 +01002411
2412 DBG_TRACE_DEVEL("queuing", STRM_EV_STRM_PROC, s);
Willy Tarreau26c25062009-03-08 09:38:41 +01002413 return t; /* nothing more to do */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002414 }
2415
Christopher Fauleteea8fc72019-11-05 16:18:10 +01002416 DBG_TRACE_DEVEL("releasing", STRM_EV_STRM_PROC, s);
2417
Willy Tarreaue7dff022015-04-03 01:14:29 +02002418 if (s->flags & SF_BE_ASSIGNED)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002419 _HA_ATOMIC_SUB(&s->be->beconn, 1);
Willy Tarreau6f5e4b92017-09-15 09:07:56 +02002420
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002421 if (unlikely((global.mode & MODE_DEBUG) &&
2422 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)))) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002423 chunk_printf(&trash, "%08x:%s.closed[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002424 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002425 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2426 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01002427 DISGUISE(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002428 }
2429
Christopher Faulet341064e2021-01-21 17:10:44 +01002430 if (!(s->flags & SF_IGNORE)) {
2431 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
2432
Olivier Houchard4c18f942019-07-31 18:05:26 +02002433 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002434
Christopher Faulet341064e2021-01-21 17:10:44 +01002435 if (s->txn && s->txn->status) {
2436 int n;
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002437
Christopher Faulet341064e2021-01-21 17:10:44 +01002438 n = s->txn->status / 100;
2439 if (n < 1 || n > 5)
2440 n = 0;
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002441
Christopher Faulet341064e2021-01-21 17:10:44 +01002442 if (sess->fe->mode == PR_MODE_HTTP) {
2443 _HA_ATOMIC_ADD(&sess->fe->fe_counters.p.http.rsp[n], 1);
2444 }
2445 if ((s->flags & SF_BE_ASSIGNED) &&
2446 (s->be->mode == PR_MODE_HTTP)) {
2447 _HA_ATOMIC_ADD(&s->be->be_counters.p.http.rsp[n], 1);
2448 _HA_ATOMIC_ADD(&s->be->be_counters.p.http.cum_req, 1);
2449 }
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002450 }
Christopher Faulet341064e2021-01-21 17:10:44 +01002451
2452 /* let's do a final log if we need it */
2453 if (!LIST_ISEMPTY(&sess->fe->logformat) && s->logs.logwait &&
2454 !(s->flags & SF_MONITOR) &&
2455 (!(sess->fe->options & PR_O_NULLNOLOG) || req->total)) {
2456 /* we may need to know the position in the queue */
2457 pendconn_free(s);
2458 s->do_log(s);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002459 }
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002460
Christopher Faulet341064e2021-01-21 17:10:44 +01002461 /* update time stats for this stream */
2462 stream_update_time_stats(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002463 }
2464
2465 /* the task MUST not be in the run queue anymore */
Willy Tarreau87b09662015-04-03 00:22:06 +02002466 stream_free(s);
Olivier Houchard3f795f72019-04-17 22:51:06 +02002467 task_destroy(t);
Willy Tarreau26c25062009-03-08 09:38:41 +01002468 return NULL;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002469}
2470
Willy Tarreau87b09662015-04-03 00:22:06 +02002471/* Update the stream's backend and server time stats */
2472void stream_update_time_stats(struct stream *s)
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002473{
2474 int t_request;
2475 int t_queue;
2476 int t_connect;
2477 int t_data;
2478 int t_close;
2479 struct server *srv;
Marcin Deraneka8dbdf32020-05-15 20:02:40 +02002480 unsigned int samples_window;
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002481
2482 t_request = 0;
2483 t_queue = s->logs.t_queue;
2484 t_connect = s->logs.t_connect;
2485 t_close = s->logs.t_close;
2486 t_data = s->logs.t_data;
2487
2488 if (s->be->mode != PR_MODE_HTTP)
2489 t_data = t_connect;
2490
2491 if (t_connect < 0 || t_data < 0)
2492 return;
2493
2494 if (tv_isge(&s->logs.tv_request, &s->logs.tv_accept))
2495 t_request = tv_ms_elapsed(&s->logs.tv_accept, &s->logs.tv_request);
2496
2497 t_data -= t_connect;
2498 t_connect -= t_queue;
2499 t_queue -= t_request;
2500
2501 srv = objt_server(s->target);
2502 if (srv) {
Marcin Deraneka8dbdf32020-05-15 20:02:40 +02002503 samples_window = (((s->be->mode == PR_MODE_HTTP) ?
2504 srv->counters.p.http.cum_req : srv->counters.cum_lbconn) > TIME_STATS_SAMPLES) ? TIME_STATS_SAMPLES : 0;
2505 swrate_add_dynamic(&srv->counters.q_time, samples_window, t_queue);
2506 swrate_add_dynamic(&srv->counters.c_time, samples_window, t_connect);
2507 swrate_add_dynamic(&srv->counters.d_time, samples_window, t_data);
2508 swrate_add_dynamic(&srv->counters.t_time, samples_window, t_close);
Christopher Fauletefb41f02019-11-08 14:53:15 +01002509 HA_ATOMIC_UPDATE_MAX(&srv->counters.qtime_max, t_queue);
2510 HA_ATOMIC_UPDATE_MAX(&srv->counters.ctime_max, t_connect);
2511 HA_ATOMIC_UPDATE_MAX(&srv->counters.dtime_max, t_data);
2512 HA_ATOMIC_UPDATE_MAX(&srv->counters.ttime_max, t_close);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002513 }
Marcin Deraneka8dbdf32020-05-15 20:02:40 +02002514 samples_window = (((s->be->mode == PR_MODE_HTTP) ?
2515 s->be->be_counters.p.http.cum_req : s->be->be_counters.cum_lbconn) > TIME_STATS_SAMPLES) ? TIME_STATS_SAMPLES : 0;
2516 swrate_add_dynamic(&s->be->be_counters.q_time, samples_window, t_queue);
2517 swrate_add_dynamic(&s->be->be_counters.c_time, samples_window, t_connect);
2518 swrate_add_dynamic(&s->be->be_counters.d_time, samples_window, t_data);
2519 swrate_add_dynamic(&s->be->be_counters.t_time, samples_window, t_close);
Christopher Fauletefb41f02019-11-08 14:53:15 +01002520 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.qtime_max, t_queue);
2521 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.ctime_max, t_connect);
2522 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.dtime_max, t_data);
2523 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.ttime_max, t_close);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002524}
2525
Willy Tarreau7c669d72008-06-20 15:04:11 +02002526/*
2527 * This function adjusts sess->srv_conn and maintains the previous and new
Willy Tarreau87b09662015-04-03 00:22:06 +02002528 * server's served stream counts. Setting newsrv to NULL is enough to release
Willy Tarreau7c669d72008-06-20 15:04:11 +02002529 * current connection slot. This function also notifies any LB algo which might
Willy Tarreau87b09662015-04-03 00:22:06 +02002530 * expect to be informed about any change in the number of active streams on a
Willy Tarreau7c669d72008-06-20 15:04:11 +02002531 * server.
2532 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002533void sess_change_server(struct stream *sess, struct server *newsrv)
Willy Tarreau7c669d72008-06-20 15:04:11 +02002534{
Willy Tarreau751153e2021-02-17 13:33:24 +01002535 struct server *oldsrv = sess->srv_conn;
2536
2537 if (oldsrv == newsrv)
Willy Tarreau7c669d72008-06-20 15:04:11 +02002538 return;
2539
Willy Tarreau751153e2021-02-17 13:33:24 +01002540 if (oldsrv) {
2541 _HA_ATOMIC_SUB(&oldsrv->served, 1);
2542 _HA_ATOMIC_SUB(&oldsrv->proxy->served, 1);
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002543 __ha_barrier_atomic_store();
Willy Tarreau59b0fec2021-02-17 16:01:37 +01002544 if (oldsrv->proxy->lbprm.server_drop_conn)
2545 oldsrv->proxy->lbprm.server_drop_conn(oldsrv, 0);
Willy Tarreau87b09662015-04-03 00:22:06 +02002546 stream_del_srv_conn(sess);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002547 }
2548
2549 if (newsrv) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002550 _HA_ATOMIC_ADD(&newsrv->served, 1);
2551 _HA_ATOMIC_ADD(&newsrv->proxy->served, 1);
2552 __ha_barrier_atomic_store();
Willy Tarreau59b0fec2021-02-17 16:01:37 +01002553 if (newsrv->proxy->lbprm.server_take_conn)
2554 newsrv->proxy->lbprm.server_take_conn(newsrv, 0);
Willy Tarreau87b09662015-04-03 00:22:06 +02002555 stream_add_srv_conn(sess, newsrv);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002556 }
2557}
2558
Willy Tarreau84455332009-03-15 22:34:05 +01002559/* Handle server-side errors for default protocols. It is called whenever a a
2560 * connection setup is aborted or a request is aborted in queue. It sets the
Willy Tarreau87b09662015-04-03 00:22:06 +02002561 * stream termination flags so that the caller does not have to worry about
Willy Tarreau84455332009-03-15 22:34:05 +01002562 * them. It's installed as ->srv_error for the server-side stream_interface.
2563 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002564void default_srv_error(struct stream *s, struct stream_interface *si)
Willy Tarreau84455332009-03-15 22:34:05 +01002565{
2566 int err_type = si->err_type;
2567 int err = 0, fin = 0;
2568
2569 if (err_type & SI_ET_QUEUE_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002570 err = SF_ERR_CLICL;
2571 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002572 }
2573 else if (err_type & SI_ET_CONN_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002574 err = SF_ERR_CLICL;
2575 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002576 }
2577 else if (err_type & SI_ET_QUEUE_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002578 err = SF_ERR_SRVTO;
2579 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002580 }
2581 else if (err_type & SI_ET_QUEUE_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002582 err = SF_ERR_SRVCL;
2583 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002584 }
2585 else if (err_type & SI_ET_CONN_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002586 err = SF_ERR_SRVTO;
2587 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002588 }
2589 else if (err_type & SI_ET_CONN_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002590 err = SF_ERR_SRVCL;
2591 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002592 }
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002593 else if (err_type & SI_ET_CONN_RES) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002594 err = SF_ERR_RESOURCE;
2595 fin = SF_FINST_C;
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002596 }
Willy Tarreau84455332009-03-15 22:34:05 +01002597 else /* SI_ET_CONN_OTHER and others */ {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002598 err = SF_ERR_INTERNAL;
2599 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002600 }
2601
Willy Tarreaue7dff022015-04-03 01:14:29 +02002602 if (!(s->flags & SF_ERR_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002603 s->flags |= err;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002604 if (!(s->flags & SF_FINST_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002605 s->flags |= fin;
2606}
Willy Tarreau7c669d72008-06-20 15:04:11 +02002607
Willy Tarreaue7dff022015-04-03 01:14:29 +02002608/* kill a stream and set the termination flags to <why> (one of SF_ERR_*) */
Willy Tarreau87b09662015-04-03 00:22:06 +02002609void stream_shutdown(struct stream *stream, int why)
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002610{
Willy Tarreau87b09662015-04-03 00:22:06 +02002611 if (stream->req.flags & (CF_SHUTW|CF_SHUTW_NOW))
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002612 return;
2613
Willy Tarreau87b09662015-04-03 00:22:06 +02002614 channel_shutw_now(&stream->req);
2615 channel_shutr_now(&stream->res);
2616 stream->task->nice = 1024;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002617 if (!(stream->flags & SF_ERR_MASK))
Willy Tarreau87b09662015-04-03 00:22:06 +02002618 stream->flags |= why;
2619 task_wakeup(stream->task, TASK_WOKEN_OTHER);
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002620}
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02002621
Willy Tarreau5484d582019-05-22 09:33:03 +02002622/* Appends a dump of the state of stream <s> into buffer <buf> which must have
2623 * preliminary be prepared by its caller, with each line prepended by prefix
2624 * <pfx>, and each line terminated by character <eol>.
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002625 */
Willy Tarreau5484d582019-05-22 09:33:03 +02002626void stream_dump(struct buffer *buf, const struct stream *s, const char *pfx, char eol)
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002627{
2628 const struct conn_stream *csf, *csb;
2629 const struct connection *cof, *cob;
2630 const struct appctx *acf, *acb;
2631 const struct server *srv;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002632 const char *src = "unknown";
2633 const char *dst = "unknown";
2634 char pn[INET6_ADDRSTRLEN];
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002635 const struct channel *req, *res;
2636 const struct stream_interface *si_f, *si_b;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002637
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002638 if (!s) {
Willy Tarreau5484d582019-05-22 09:33:03 +02002639 chunk_appendf(buf, "%sstrm=%p%c", pfx, s, eol);
2640 return;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002641 }
2642
Willy Tarreau5484d582019-05-22 09:33:03 +02002643 if (s->obj_type != OBJ_TYPE_STREAM) {
2644 chunk_appendf(buf, "%sstrm=%p [invalid type=%d(%s)]%c",
2645 pfx, s, s->obj_type, obj_type_name(&s->obj_type), eol);
2646 return;
2647 }
2648
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002649 si_f = &s->si[0];
2650 si_b = &s->si[1];
2651 req = &s->req;
2652 res = &s->res;
2653
2654 csf = objt_cs(si_f->end);
2655 cof = cs_conn(csf);
2656 acf = objt_appctx(si_f->end);
Willy Tarreau71e34c12019-07-17 15:07:06 +02002657 if (cof && cof->src && addr_to_str(cof->src, pn, sizeof(pn)) >= 0)
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002658 src = pn;
2659 else if (acf)
2660 src = acf->applet->name;
2661
2662 csb = objt_cs(si_b->end);
2663 cob = cs_conn(csb);
2664 acb = objt_appctx(si_b->end);
2665 srv = objt_server(s->target);
2666 if (srv)
2667 dst = srv->id;
2668 else if (acb)
2669 dst = acb->applet->name;
2670
Willy Tarreau5484d582019-05-22 09:33:03 +02002671 chunk_appendf(buf,
2672 "%sstrm=%p src=%s fe=%s be=%s dst=%s%c"
2673 "%srqf=%x rqa=%x rpf=%x rpa=%x sif=%s,%x sib=%s,%x%c"
2674 "%saf=%p,%u csf=%p,%x%c"
2675 "%sab=%p,%u csb=%p,%x%c"
2676 "%scof=%p,%x:%s(%p)/%s(%p)/%s(%d)%c"
2677 "%scob=%p,%x:%s(%p)/%s(%p)/%s(%d)%c"
2678 "",
2679 pfx, s, src, s->sess->fe->id, s->be->id, dst, eol,
2680 pfx, req->flags, req->analysers, res->flags, res->analysers,
2681 si_state_str(si_f->state), si_f->flags,
2682 si_state_str(si_b->state), si_b->flags, eol,
2683 pfx, acf, acf ? acf->st0 : 0, csf, csf ? csf->flags : 0, eol,
2684 pfx, acb, acb ? acb->st0 : 0, csb, csb ? csb->flags : 0, eol,
2685 pfx, cof, cof ? cof->flags : 0, conn_get_mux_name(cof), cof?cof->ctx:0, conn_get_xprt_name(cof),
2686 cof ? cof->xprt_ctx : 0, conn_get_ctrl_name(cof), cof ? cof->handle.fd : 0, eol,
2687 pfx, cob, cob ? cob->flags : 0, conn_get_mux_name(cob), cob?cob->ctx:0, conn_get_xprt_name(cob),
2688 cob ? cob->xprt_ctx : 0, conn_get_ctrl_name(cob), cob ? cob->handle.fd : 0, eol);
2689}
2690
2691/* dumps an error message for type <type> at ptr <ptr> related to stream <s>,
Willy Tarreaub106ce12019-05-22 08:57:01 +02002692 * having reached loop rate <rate>, then aborts hoping to retrieve a core.
Willy Tarreau5484d582019-05-22 09:33:03 +02002693 */
2694void stream_dump_and_crash(enum obj_type *obj, int rate)
2695{
2696 const struct stream *s;
Willy Tarreau5484d582019-05-22 09:33:03 +02002697 char *msg = NULL;
2698 const void *ptr;
2699
2700 ptr = s = objt_stream(obj);
2701 if (!s) {
2702 const struct appctx *appctx = objt_appctx(obj);
2703 if (!appctx)
2704 return;
2705 ptr = appctx;
2706 s = si_strm(appctx->owner);
2707 if (!s)
2708 return;
2709 }
2710
Willy Tarreau5484d582019-05-22 09:33:03 +02002711 chunk_reset(&trash);
2712 stream_dump(&trash, s, "", ' ');
Willy Tarreau9753d612020-05-01 16:57:02 +02002713
2714 chunk_appendf(&trash, "filters={");
2715 if (HAS_FILTERS(s)) {
2716 struct filter *filter;
2717
2718 list_for_each_entry(filter, &s->strm_flt.filters, list) {
2719 if (filter->list.p != &s->strm_flt.filters)
2720 chunk_appendf(&trash, ", ");
2721 chunk_appendf(&trash, "%p=\"%s\"", filter, FLT_ID(filter));
2722 }
2723 }
2724 chunk_appendf(&trash, "}");
2725
Willy Tarreaub106ce12019-05-22 08:57:01 +02002726 memprintf(&msg,
2727 "A bogus %s [%p] is spinning at %d calls per second and refuses to die, "
2728 "aborting now! Please report this error to developers "
2729 "[%s]\n",
Willy Tarreau5484d582019-05-22 09:33:03 +02002730 obj_type_name(obj), ptr, rate, trash.area);
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002731
2732 ha_alert("%s", msg);
2733 send_log(NULL, LOG_EMERG, "%s", msg);
2734 abort();
2735}
2736
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002737/* Generates a unique ID based on the given <format>, stores it in the given <strm> and
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002738 * returns the unique ID.
2739
2740 * If this function fails to allocate memory IST_NULL is returned.
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002741 *
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002742 * If an ID is already stored within the stream nothing happens existing unique ID is
2743 * returned.
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002744 */
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002745struct ist stream_generate_unique_id(struct stream *strm, struct list *format)
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002746{
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002747 if (isttest(strm->unique_id)) {
2748 return strm->unique_id;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002749 }
2750 else {
2751 char *unique_id;
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002752 int length;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002753 if ((unique_id = pool_alloc(pool_head_uniqueid)) == NULL)
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002754 return IST_NULL;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002755
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002756 length = build_logline(strm, unique_id, UNIQUEID_LEN, format);
2757 strm->unique_id = ist2(unique_id, length);
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002758
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002759 return strm->unique_id;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002760 }
2761}
2762
Willy Tarreau8b22a712010-06-18 17:46:06 +02002763/************************************************************************/
2764/* All supported ACL keywords must be declared here. */
2765/************************************************************************/
2766
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02002767/* 0=OK, <0=Alert, >0=Warning */
2768static enum act_parse_ret stream_parse_use_service(const char **args, int *cur_arg,
2769 struct proxy *px, struct act_rule *rule,
2770 char **err)
2771{
2772 struct action_kw *kw;
2773
2774 /* Check if the service name exists. */
2775 if (*(args[*cur_arg]) == 0) {
2776 memprintf(err, "'%s' expects a service name.", args[0]);
Thierry FOURNIER337eae12015-11-26 19:48:04 +01002777 return ACT_RET_PRS_ERR;
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02002778 }
2779
2780 /* lookup for keyword corresponding to a service. */
2781 kw = action_lookup(&service_keywords, args[*cur_arg]);
2782 if (!kw) {
2783 memprintf(err, "'%s' unknown service name.", args[1]);
2784 return ACT_RET_PRS_ERR;
2785 }
2786 (*cur_arg)++;
2787
2788 /* executes specific rule parser. */
2789 rule->kw = kw;
2790 if (kw->parse((const char **)args, cur_arg, px, rule, err) == ACT_RET_PRS_ERR)
2791 return ACT_RET_PRS_ERR;
2792
2793 /* Register processing function. */
2794 rule->action_ptr = process_use_service;
2795 rule->action = ACT_CUSTOM;
2796
2797 return ACT_RET_PRS_OK;
2798}
2799
2800void service_keywords_register(struct action_kw_list *kw_list)
2801{
2802 LIST_ADDQ(&service_keywords, &kw_list->list);
2803}
2804
Thierry Fournier87e53992020-11-28 19:32:14 +01002805struct action_kw *service_find(const char *kw)
2806{
2807 return action_lookup(&service_keywords, kw);
2808}
2809
Willy Tarreau679bba12019-03-19 08:08:10 +01002810/* Lists the known services on <out> */
2811void list_services(FILE *out)
2812{
2813 struct action_kw_list *kw_list;
2814 int found = 0;
2815 int i;
2816
2817 fprintf(out, "Available services :");
2818 list_for_each_entry(kw_list, &service_keywords, list) {
2819 for (i = 0; kw_list->kw[i].kw != NULL; i++) {
Willy Tarreau679bba12019-03-19 08:08:10 +01002820 found = 1;
William Dauchyaabde712021-01-09 17:26:20 +01002821 fprintf(out, " %s", kw_list->kw[i].kw);
Willy Tarreau679bba12019-03-19 08:08:10 +01002822 }
2823 }
2824 if (!found)
2825 fprintf(out, " none\n");
2826}
William Lallemand4c5b4d52016-11-21 08:51:11 +01002827
2828/* This function dumps a complete stream state onto the stream interface's
2829 * read buffer. The stream has to be set in strm. It returns 0 if the output
2830 * buffer is full and it needs to be called again, otherwise non-zero. It is
2831 * designed to be called from stats_dump_strm_to_buffer() below.
2832 */
2833static int stats_dump_full_strm_to_buffer(struct stream_interface *si, struct stream *strm)
2834{
2835 struct appctx *appctx = __objt_appctx(si->end);
2836 struct tm tm;
2837 extern const char *monthname[12];
2838 char pn[INET6_ADDRSTRLEN];
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002839 struct conn_stream *cs;
William Lallemand4c5b4d52016-11-21 08:51:11 +01002840 struct connection *conn;
2841 struct appctx *tmpctx;
2842
2843 chunk_reset(&trash);
2844
2845 if (appctx->ctx.sess.section > 0 && appctx->ctx.sess.uid != strm->uniq_id) {
2846 /* stream changed, no need to go any further */
2847 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
Willy Tarreaue6e52362019-01-04 17:42:57 +01002848 if (ci_putchk(si_ic(si), &trash) == -1)
2849 goto full;
2850 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01002851 }
2852
2853 switch (appctx->ctx.sess.section) {
2854 case 0: /* main status of the stream */
2855 appctx->ctx.sess.uid = strm->uniq_id;
2856 appctx->ctx.sess.section = 1;
2857 /* fall through */
2858
2859 case 1:
2860 get_localtime(strm->logs.accept_date.tv_sec, &tm);
2861 chunk_appendf(&trash,
2862 "%p: [%02d/%s/%04d:%02d:%02d:%02d.%06d] id=%u proto=%s",
2863 strm,
2864 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
2865 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(strm->logs.accept_date.tv_usec),
2866 strm->uniq_id,
Willy Tarreaub7436612020-08-28 19:51:44 +02002867 strm_li(strm) ? strm_li(strm)->rx.proto->name : "?");
William Lallemand4c5b4d52016-11-21 08:51:11 +01002868
2869 conn = objt_conn(strm_orig(strm));
Willy Tarreau71e34c12019-07-17 15:07:06 +02002870 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002871 case AF_INET:
2872 case AF_INET6:
2873 chunk_appendf(&trash, " source=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002874 pn, get_host_port(conn->src));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002875 break;
2876 case AF_UNIX:
2877 chunk_appendf(&trash, " source=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 chunk_appendf(&trash,
Willy Tarreauadf7a152019-01-07 10:10:07 +01002886 " flags=0x%x, conn_retries=%d, srv_conn=%p, pend_pos=%p waiting=%d\n",
2887 strm->flags, strm->si[1].conn_retries, strm->srv_conn, strm->pend_pos,
Willy Tarreau21046592020-02-26 10:39:36 +01002888 MT_LIST_ADDED(&strm->buffer_wait.list));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002889
2890 chunk_appendf(&trash,
2891 " frontend=%s (id=%u mode=%s), listener=%s (id=%u)",
2892 strm_fe(strm)->id, strm_fe(strm)->uuid, strm_fe(strm)->mode ? "http" : "tcp",
2893 strm_li(strm) ? strm_li(strm)->name ? strm_li(strm)->name : "?" : "?",
2894 strm_li(strm) ? strm_li(strm)->luid : 0);
2895
Willy Tarreau71e34c12019-07-17 15:07:06 +02002896 switch (conn && conn_get_dst(conn) ? addr_to_str(conn->dst, 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->dst));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002901 break;
2902 case AF_UNIX:
2903 chunk_appendf(&trash, " addr=unix:%d\n", strm_li(strm)->luid);
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 " backend=%s (id=%u mode=%s)",
2914 strm->be->id,
2915 strm->be->uuid, strm->be->mode ? "http" : "tcp");
2916 else
2917 chunk_appendf(&trash, " backend=<NONE> (id=-1 mode=-)");
2918
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002919 cs = objt_cs(strm->si[1].end);
2920 conn = cs_conn(cs);
2921
Willy Tarreau71e34c12019-07-17 15:07:06 +02002922 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002923 case AF_INET:
2924 case AF_INET6:
2925 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002926 pn, get_host_port(conn->src));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002927 break;
2928 case AF_UNIX:
2929 chunk_appendf(&trash, " addr=unix\n");
2930 break;
2931 default:
2932 /* no more information to print right now */
2933 chunk_appendf(&trash, "\n");
2934 break;
2935 }
2936
2937 if (strm->be->cap & PR_CAP_BE)
2938 chunk_appendf(&trash,
2939 " server=%s (id=%u)",
2940 objt_server(strm->target) ? objt_server(strm->target)->id : "<none>",
2941 objt_server(strm->target) ? objt_server(strm->target)->puid : 0);
2942 else
2943 chunk_appendf(&trash, " server=<NONE> (id=-1)");
2944
Willy Tarreau71e34c12019-07-17 15:07:06 +02002945 switch (conn && conn_get_dst(conn) ? addr_to_str(conn->dst, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002946 case AF_INET:
2947 case AF_INET6:
2948 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002949 pn, get_host_port(conn->dst));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002950 break;
2951 case AF_UNIX:
2952 chunk_appendf(&trash, " addr=unix\n");
2953 break;
2954 default:
2955 /* no more information to print right now */
2956 chunk_appendf(&trash, "\n");
2957 break;
2958 }
2959
2960 chunk_appendf(&trash,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02002961 " task=%p (state=0x%02x nice=%d calls=%u rate=%u exp=%s tmask=0x%lx%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002962 strm->task,
2963 strm->task->state,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02002964 strm->task->nice, strm->task->calls, read_freq_ctr(&strm->call_rate),
William Lallemand4c5b4d52016-11-21 08:51:11 +01002965 strm->task->expire ?
2966 tick_is_expired(strm->task->expire, now_ms) ? "<PAST>" :
2967 human_time(TICKS_TO_MS(strm->task->expire - now_ms),
2968 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Fauletf0205062017-11-15 20:56:43 +01002969 strm->task->thread_mask,
William Lallemand4c5b4d52016-11-21 08:51:11 +01002970 task_in_rq(strm->task) ? ", running" : "");
2971
2972 chunk_appendf(&trash,
2973 " age=%s)\n",
2974 human_time(now.tv_sec - strm->logs.accept_date.tv_sec, 1));
2975
2976 if (strm->txn)
2977 chunk_appendf(&trash,
Christopher Fauletbcac7862019-07-17 10:46:50 +02002978 " 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 +01002979 strm->txn, strm->txn->flags, strm->txn->meth, strm->txn->status,
Willy Tarreau7778b592019-01-07 10:38:10 +01002980 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 +02002981 strm->txn->req.flags, strm->txn->rsp.flags);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002982
2983 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01002984 " 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 +01002985 &strm->si[0],
2986 si_state_str(strm->si[0].state),
2987 strm->si[0].flags,
2988 obj_type_name(strm->si[0].end),
2989 obj_base_ptr(strm->si[0].end),
2990 strm->si[0].exp ?
2991 tick_is_expired(strm->si[0].exp, now_ms) ? "<PAST>" :
2992 human_time(TICKS_TO_MS(strm->si[0].exp - now_ms),
2993 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01002994 strm->si[0].err_type, strm->si[0].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002995
2996 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01002997 " 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 +01002998 &strm->si[1],
2999 si_state_str(strm->si[1].state),
3000 strm->si[1].flags,
3001 obj_type_name(strm->si[1].end),
3002 obj_base_ptr(strm->si[1].end),
3003 strm->si[1].exp ?
3004 tick_is_expired(strm->si[1].exp, now_ms) ? "<PAST>" :
3005 human_time(TICKS_TO_MS(strm->si[1].exp - now_ms),
3006 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01003007 strm->si[1].err_type, strm->si[1].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003008
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003009 if ((cs = objt_cs(strm->si[0].end)) != NULL) {
3010 conn = cs->conn;
3011
William Lallemand4c5b4d52016-11-21 08:51:11 +01003012 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02003013 " co0=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003014 conn,
3015 conn_get_ctrl_name(conn),
3016 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02003017 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003018 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003019 obj_type_name(conn->target),
3020 obj_base_ptr(conn->target));
3021
3022 chunk_appendf(&trash,
Willy Tarreau76913d32019-08-30 14:33:11 +02003023 " flags=0x%08x fd=%d fd.state=%02x updt=%d fd.tmask=0x%lx\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003024 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003025 conn->handle.fd,
3026 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01003027 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01003028 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01003029
3030 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003031 }
3032 else if ((tmpctx = objt_appctx(strm->si[0].end)) != NULL) {
3033 chunk_appendf(&trash,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003034 " 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 +01003035 tmpctx,
3036 tmpctx->st0,
3037 tmpctx->st1,
3038 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01003039 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02003040 tmpctx->thread_mask,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003041 tmpctx->t->nice, tmpctx->t->calls, read_freq_ctr(&tmpctx->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003042 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003043 }
3044
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003045 if ((cs = objt_cs(strm->si[1].end)) != NULL) {
3046 conn = cs->conn;
3047
William Lallemand4c5b4d52016-11-21 08:51:11 +01003048 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02003049 " co1=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003050 conn,
3051 conn_get_ctrl_name(conn),
3052 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02003053 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003054 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003055 obj_type_name(conn->target),
3056 obj_base_ptr(conn->target));
3057
3058 chunk_appendf(&trash,
Willy Tarreau76913d32019-08-30 14:33:11 +02003059 " flags=0x%08x fd=%d fd.state=%02x updt=%d fd.tmask=0x%lx\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003060 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003061 conn->handle.fd,
3062 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01003063 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01003064 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01003065
3066 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003067 }
3068 else if ((tmpctx = objt_appctx(strm->si[1].end)) != NULL) {
3069 chunk_appendf(&trash,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003070 " 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 +01003071 tmpctx,
3072 tmpctx->st0,
3073 tmpctx->st1,
3074 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01003075 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02003076 tmpctx->thread_mask,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003077 tmpctx->t->nice, tmpctx->t->calls, read_freq_ctr(&tmpctx->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003078 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003079 }
3080
3081 chunk_appendf(&trash,
3082 " req=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
3083 " an_exp=%s",
3084 &strm->req,
3085 strm->req.flags, strm->req.analysers,
3086 strm->req.pipe ? strm->req.pipe->data : 0,
3087 strm->req.to_forward, strm->req.total,
3088 strm->req.analyse_exp ?
3089 human_time(TICKS_TO_MS(strm->req.analyse_exp - now_ms),
3090 TICKS_TO_MS(1000)) : "<NEVER>");
3091
3092 chunk_appendf(&trash,
3093 " rex=%s",
3094 strm->req.rex ?
3095 human_time(TICKS_TO_MS(strm->req.rex - now_ms),
3096 TICKS_TO_MS(1000)) : "<NEVER>");
3097
3098 chunk_appendf(&trash,
3099 " wex=%s\n"
Christopher Fauletbcac7862019-07-17 10:46:50 +02003100 " buf=%p data=%p o=%u p=%u i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003101 strm->req.wex ?
3102 human_time(TICKS_TO_MS(strm->req.wex - now_ms),
3103 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003104 &strm->req.buf,
3105 b_orig(&strm->req.buf), (unsigned int)co_data(&strm->req),
Christopher Fauletbcac7862019-07-17 10:46:50 +02003106 (unsigned int)ci_head_ofs(&strm->req), (unsigned int)ci_data(&strm->req),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003107 (unsigned int)strm->req.buf.size);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003108
Christopher Fauletb9af8812019-01-04 14:30:44 +01003109 if (IS_HTX_STRM(strm)) {
3110 struct htx *htx = htxbuf(&strm->req.buf);
3111
3112 chunk_appendf(&trash,
Willy Tarreaub84e67f2019-01-07 10:01:34 +01003113 " htx=%p flags=0x%x size=%u data=%u used=%u wrap=%s extra=%llu\n",
Christopher Faulet192c6a22019-06-11 16:32:24 +02003114 htx, htx->flags, htx->size, htx->data, htx_nbblks(htx),
Christopher Faulet28f29c72019-04-30 17:55:45 +02003115 (htx->tail >= htx->head) ? "NO" : "YES",
Christopher Fauletb9af8812019-01-04 14:30:44 +01003116 (unsigned long long)htx->extra);
3117 }
3118
William Lallemand4c5b4d52016-11-21 08:51:11 +01003119 chunk_appendf(&trash,
3120 " res=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
3121 " an_exp=%s",
3122 &strm->res,
3123 strm->res.flags, strm->res.analysers,
3124 strm->res.pipe ? strm->res.pipe->data : 0,
3125 strm->res.to_forward, strm->res.total,
3126 strm->res.analyse_exp ?
3127 human_time(TICKS_TO_MS(strm->res.analyse_exp - now_ms),
3128 TICKS_TO_MS(1000)) : "<NEVER>");
3129
3130 chunk_appendf(&trash,
3131 " rex=%s",
3132 strm->res.rex ?
3133 human_time(TICKS_TO_MS(strm->res.rex - now_ms),
3134 TICKS_TO_MS(1000)) : "<NEVER>");
3135
3136 chunk_appendf(&trash,
3137 " wex=%s\n"
Christopher Fauletbcac7862019-07-17 10:46:50 +02003138 " buf=%p data=%p o=%u p=%u i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003139 strm->res.wex ?
3140 human_time(TICKS_TO_MS(strm->res.wex - now_ms),
3141 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003142 &strm->res.buf,
3143 b_orig(&strm->res.buf), (unsigned int)co_data(&strm->res),
Christopher Fauletbcac7862019-07-17 10:46:50 +02003144 (unsigned int)ci_head_ofs(&strm->res), (unsigned int)ci_data(&strm->res),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003145 (unsigned int)strm->res.buf.size);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003146
Christopher Fauletb9af8812019-01-04 14:30:44 +01003147 if (IS_HTX_STRM(strm)) {
3148 struct htx *htx = htxbuf(&strm->res.buf);
3149
3150 chunk_appendf(&trash,
3151 " htx=%p flags=0x%x size=%u data=%u used=%u wrap=%s extra=%llu\n",
Christopher Faulet192c6a22019-06-11 16:32:24 +02003152 htx, htx->flags, htx->size, htx->data, htx_nbblks(htx),
Christopher Faulet28f29c72019-04-30 17:55:45 +02003153 (htx->tail >= htx->head) ? "NO" : "YES",
Christopher Fauletb9af8812019-01-04 14:30:44 +01003154 (unsigned long long)htx->extra);
3155 }
3156
Willy Tarreaue6e52362019-01-04 17:42:57 +01003157 if (ci_putchk(si_ic(si), &trash) == -1)
3158 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003159
3160 /* use other states to dump the contents */
3161 }
3162 /* end of dump */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003163 done:
William Lallemand4c5b4d52016-11-21 08:51:11 +01003164 appctx->ctx.sess.uid = 0;
3165 appctx->ctx.sess.section = 0;
3166 return 1;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003167 full:
3168 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003169}
3170
3171
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003172static int cli_parse_show_sess(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemand4c5b4d52016-11-21 08:51:11 +01003173{
William Lallemand4c5b4d52016-11-21 08:51:11 +01003174 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
3175 return 1;
3176
3177 if (*args[2] && strcmp(args[2], "all") == 0)
3178 appctx->ctx.sess.target = (void *)-1;
3179 else if (*args[2])
3180 appctx->ctx.sess.target = (void *)strtoul(args[2], NULL, 0);
3181 else
3182 appctx->ctx.sess.target = NULL;
3183 appctx->ctx.sess.section = 0; /* start with stream status */
3184 appctx->ctx.sess.pos = 0;
3185
Willy Tarreauc6e7a1b2020-06-28 01:24:12 +02003186 /* we need to put an end marker into the streams list. We're just moving
3187 * ourselves there, so that once we found ourselves we know we've reached
3188 * the end. Without this we can run forever if new streams arrive faster
3189 * than we can dump them.
3190 */
3191 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
3192 LIST_DEL(&si_strm(appctx->owner)->list);
3193 LIST_ADDQ(&streams, &si_strm(appctx->owner)->list);
3194 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003195 return 0;
3196}
3197
3198/* This function dumps all streams' states onto the stream interface's
3199 * read buffer. It returns 0 if the output buffer is full and it needs
Willy Tarreaue6e52362019-01-04 17:42:57 +01003200 * to be called again, otherwise non-zero. It proceeds in an isolated
3201 * thread so there is no thread safety issue here.
William Lallemand4c5b4d52016-11-21 08:51:11 +01003202 */
3203static int cli_io_handler_dump_sess(struct appctx *appctx)
3204{
3205 struct stream_interface *si = appctx->owner;
3206 struct connection *conn;
3207
Willy Tarreaue6e52362019-01-04 17:42:57 +01003208 thread_isolate();
3209
William Lallemand4c5b4d52016-11-21 08:51:11 +01003210 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW))) {
3211 /* If we're forced to shut down, we might have to remove our
3212 * reference to the last stream being dumped.
3213 */
3214 if (appctx->st2 == STAT_ST_LIST) {
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 Tarreaue6e52362019-01-04 17:42:57 +01003220 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003221 }
3222
3223 chunk_reset(&trash);
3224
3225 switch (appctx->st2) {
3226 case STAT_ST_INIT:
3227 /* the function had not been called yet, let's prepare the
3228 * buffer for a response. We initialize the current stream
3229 * pointer to the first in the global list. When a target
3230 * stream is being destroyed, it is responsible for updating
3231 * this pointer. We know we have reached the end when this
3232 * pointer points back to the head of the streams list.
3233 */
3234 LIST_INIT(&appctx->ctx.sess.bref.users);
3235 appctx->ctx.sess.bref.ref = streams.n;
3236 appctx->st2 = STAT_ST_LIST;
3237 /* fall through */
3238
3239 case STAT_ST_LIST:
3240 /* first, let's detach the back-ref from a possible previous stream */
3241 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users)) {
3242 LIST_DEL(&appctx->ctx.sess.bref.users);
3243 LIST_INIT(&appctx->ctx.sess.bref.users);
3244 }
3245
Willy Tarreauc6e7a1b2020-06-28 01:24:12 +02003246 /* and start from where we stopped, never going further than ourselves */
3247 while (appctx->ctx.sess.bref.ref != si_strm(appctx->owner)->list.n) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003248 char pn[INET6_ADDRSTRLEN];
3249 struct stream *curr_strm;
3250
3251 curr_strm = LIST_ELEM(appctx->ctx.sess.bref.ref, struct stream *, list);
3252
3253 if (appctx->ctx.sess.target) {
3254 if (appctx->ctx.sess.target != (void *)-1 && appctx->ctx.sess.target != curr_strm)
3255 goto next_sess;
3256
3257 LIST_ADDQ(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
3258 /* call the proper dump() function and return if we're missing space */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003259 if (!stats_dump_full_strm_to_buffer(si, curr_strm))
3260 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003261
3262 /* stream dump complete */
3263 LIST_DEL(&appctx->ctx.sess.bref.users);
3264 LIST_INIT(&appctx->ctx.sess.bref.users);
3265 if (appctx->ctx.sess.target != (void *)-1) {
3266 appctx->ctx.sess.target = NULL;
3267 break;
3268 }
3269 else
3270 goto next_sess;
3271 }
3272
3273 chunk_appendf(&trash,
3274 "%p: proto=%s",
3275 curr_strm,
Willy Tarreaub7436612020-08-28 19:51:44 +02003276 strm_li(curr_strm) ? strm_li(curr_strm)->rx.proto->name : "?");
William Lallemand4c5b4d52016-11-21 08:51:11 +01003277
3278 conn = objt_conn(strm_orig(curr_strm));
Willy Tarreau71e34c12019-07-17 15:07:06 +02003279 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003280 case AF_INET:
3281 case AF_INET6:
3282 chunk_appendf(&trash,
3283 " src=%s:%d fe=%s be=%s srv=%s",
3284 pn,
Willy Tarreau71e34c12019-07-17 15:07:06 +02003285 get_host_port(conn->src),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003286 strm_fe(curr_strm)->id,
3287 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
3288 objt_server(curr_strm->target) ? objt_server(curr_strm->target)->id : "<none>"
3289 );
3290 break;
3291 case AF_UNIX:
3292 chunk_appendf(&trash,
3293 " src=unix:%d fe=%s be=%s srv=%s",
3294 strm_li(curr_strm)->luid,
3295 strm_fe(curr_strm)->id,
3296 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
3297 objt_server(curr_strm->target) ? objt_server(curr_strm->target)->id : "<none>"
3298 );
3299 break;
3300 }
3301
3302 chunk_appendf(&trash,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003303 " ts=%02x age=%s calls=%u rate=%u cpu=%llu lat=%llu",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003304 curr_strm->task->state,
3305 human_time(now.tv_sec - curr_strm->logs.tv_accept.tv_sec, 1),
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003306 curr_strm->task->calls, read_freq_ctr(&curr_strm->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003307 (unsigned long long)curr_strm->task->cpu_time, (unsigned long long)curr_strm->task->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003308
3309 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003310 " rq[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003311 curr_strm->req.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003312 (unsigned int)ci_data(&curr_strm->req),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003313 curr_strm->req.analysers,
3314 curr_strm->req.rex ?
3315 human_time(TICKS_TO_MS(curr_strm->req.rex - now_ms),
3316 TICKS_TO_MS(1000)) : "");
3317
3318 chunk_appendf(&trash,
3319 ",wx=%s",
3320 curr_strm->req.wex ?
3321 human_time(TICKS_TO_MS(curr_strm->req.wex - now_ms),
3322 TICKS_TO_MS(1000)) : "");
3323
3324 chunk_appendf(&trash,
3325 ",ax=%s]",
3326 curr_strm->req.analyse_exp ?
3327 human_time(TICKS_TO_MS(curr_strm->req.analyse_exp - now_ms),
3328 TICKS_TO_MS(1000)) : "");
3329
3330 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003331 " rp[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003332 curr_strm->res.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003333 (unsigned int)ci_data(&curr_strm->res),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003334 curr_strm->res.analysers,
3335 curr_strm->res.rex ?
3336 human_time(TICKS_TO_MS(curr_strm->res.rex - now_ms),
3337 TICKS_TO_MS(1000)) : "");
3338
3339 chunk_appendf(&trash,
3340 ",wx=%s",
3341 curr_strm->res.wex ?
3342 human_time(TICKS_TO_MS(curr_strm->res.wex - now_ms),
3343 TICKS_TO_MS(1000)) : "");
3344
3345 chunk_appendf(&trash,
3346 ",ax=%s]",
3347 curr_strm->res.analyse_exp ?
3348 human_time(TICKS_TO_MS(curr_strm->res.analyse_exp - now_ms),
3349 TICKS_TO_MS(1000)) : "");
3350
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003351 conn = cs_conn(objt_cs(curr_strm->si[0].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003352 chunk_appendf(&trash,
3353 " s0=[%d,%1xh,fd=%d,ex=%s]",
3354 curr_strm->si[0].state,
3355 curr_strm->si[0].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003356 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003357 curr_strm->si[0].exp ?
3358 human_time(TICKS_TO_MS(curr_strm->si[0].exp - now_ms),
3359 TICKS_TO_MS(1000)) : "");
3360
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003361 conn = cs_conn(objt_cs(curr_strm->si[1].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003362 chunk_appendf(&trash,
3363 " s1=[%d,%1xh,fd=%d,ex=%s]",
3364 curr_strm->si[1].state,
3365 curr_strm->si[1].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003366 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003367 curr_strm->si[1].exp ?
3368 human_time(TICKS_TO_MS(curr_strm->si[1].exp - now_ms),
3369 TICKS_TO_MS(1000)) : "");
3370
3371 chunk_appendf(&trash,
3372 " exp=%s",
3373 curr_strm->task->expire ?
3374 human_time(TICKS_TO_MS(curr_strm->task->expire - now_ms),
3375 TICKS_TO_MS(1000)) : "");
3376 if (task_in_rq(curr_strm->task))
3377 chunk_appendf(&trash, " run(nice=%d)", curr_strm->task->nice);
3378
3379 chunk_appendf(&trash, "\n");
3380
Willy Tarreau06d80a92017-10-19 14:32:15 +02003381 if (ci_putchk(si_ic(si), &trash) == -1) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003382 /* let's try again later from this stream. We add ourselves into
3383 * this stream's users so that it can remove us upon termination.
3384 */
William Lallemand4c5b4d52016-11-21 08:51:11 +01003385 LIST_ADDQ(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
Willy Tarreaue6e52362019-01-04 17:42:57 +01003386 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003387 }
3388
3389 next_sess:
3390 appctx->ctx.sess.bref.ref = curr_strm->list.n;
3391 }
3392
3393 if (appctx->ctx.sess.target && appctx->ctx.sess.target != (void *)-1) {
3394 /* specified stream not found */
3395 if (appctx->ctx.sess.section > 0)
3396 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
3397 else
3398 chunk_appendf(&trash, "Session not found.\n");
3399
Willy Tarreaue6e52362019-01-04 17:42:57 +01003400 if (ci_putchk(si_ic(si), &trash) == -1)
3401 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003402
3403 appctx->ctx.sess.target = NULL;
3404 appctx->ctx.sess.uid = 0;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003405 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003406 }
William Lallemand4c5b4d52016-11-21 08:51:11 +01003407 /* fall through */
3408
3409 default:
3410 appctx->st2 = STAT_ST_FIN;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003411 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003412 }
Willy Tarreaue6e52362019-01-04 17:42:57 +01003413 done:
3414 thread_release();
3415 return 1;
3416 full:
3417 thread_release();
3418 si_rx_room_blk(si);
3419 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003420}
3421
3422static void cli_release_show_sess(struct appctx *appctx)
3423{
3424 if (appctx->st2 == STAT_ST_LIST) {
Willy Tarreau7ce3f092017-11-10 16:24:41 +01003425 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003426 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users))
3427 LIST_DEL(&appctx->ctx.sess.bref.users);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003428 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003429 }
3430}
3431
Willy Tarreau61b65212016-11-24 11:09:25 +01003432/* Parses the "shutdown session" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003433static int cli_parse_shutdown_session(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau61b65212016-11-24 11:09:25 +01003434{
3435 struct stream *strm, *ptr;
3436
3437 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3438 return 1;
3439
Willy Tarreau9d008692019-08-09 11:21:01 +02003440 if (!*args[2])
3441 return cli_err(appctx, "Session pointer expected (use 'show sess').\n");
Willy Tarreau61b65212016-11-24 11:09:25 +01003442
3443 ptr = (void *)strtoul(args[2], NULL, 0);
3444
3445 /* first, look for the requested stream in the stream table */
3446 list_for_each_entry(strm, &streams, list) {
3447 if (strm == ptr)
3448 break;
3449 }
3450
3451 /* do we have the stream ? */
Willy Tarreau9d008692019-08-09 11:21:01 +02003452 if (strm != ptr)
3453 return cli_err(appctx, "No such session (use 'show sess').\n");
Willy Tarreau61b65212016-11-24 11:09:25 +01003454
3455 stream_shutdown(strm, SF_ERR_KILLED);
3456 return 1;
3457}
3458
Willy Tarreau4e46b622016-11-23 16:50:48 +01003459/* Parses the "shutdown session server" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003460static int cli_parse_shutdown_sessions_server(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau4e46b622016-11-23 16:50:48 +01003461{
3462 struct server *sv;
Willy Tarreau4e46b622016-11-23 16:50:48 +01003463
3464 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3465 return 1;
3466
3467 sv = cli_find_server(appctx, args[3]);
3468 if (!sv)
3469 return 1;
3470
3471 /* kill all the stream that are on this server */
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003472 HA_SPIN_LOCK(SERVER_LOCK, &sv->lock);
Willy Tarreaud9e26a72019-11-14 16:37:16 +01003473 srv_shutdown_streams(sv, SF_ERR_KILLED);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003474 HA_SPIN_UNLOCK(SERVER_LOCK, &sv->lock);
Willy Tarreau4e46b622016-11-23 16:50:48 +01003475 return 1;
3476}
3477
William Lallemand4c5b4d52016-11-21 08:51:11 +01003478/* register cli keywords */
3479static struct cli_kw_list cli_kws = {{ },{
3480 { { "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 +01003481 { { "shutdown", "session", NULL }, "shutdown session : kill a specific session", cli_parse_shutdown_session, NULL, NULL },
Willy Tarreau4e46b622016-11-23 16:50:48 +01003482 { { "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 +01003483 {{},}
3484}};
3485
Willy Tarreau0108d902018-11-25 19:14:37 +01003486INITCALL1(STG_REGISTER, cli_register_kw, &cli_kws);
3487
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003488/* main configuration keyword registration. */
3489static struct action_kw_list stream_tcp_keywords = { ILH, {
3490 { "use-service", stream_parse_use_service },
3491 { /* END */ }
3492}};
3493
Willy Tarreau0108d902018-11-25 19:14:37 +01003494INITCALL1(STG_REGISTER, tcp_req_cont_keywords_register, &stream_tcp_keywords);
3495
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003496static struct action_kw_list stream_http_keywords = { ILH, {
3497 { "use-service", stream_parse_use_service },
3498 { /* END */ }
3499}};
3500
Willy Tarreau0108d902018-11-25 19:14:37 +01003501INITCALL1(STG_REGISTER, http_req_keywords_register, &stream_http_keywords);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003502
Amaury Denoyellef7719a22020-12-10 13:43:58 +01003503static int smp_fetch_cur_server_timeout(const struct arg *args, struct sample *smp, const char *km, void *private)
3504{
3505 smp->flags = SMP_F_VOL_TXN;
3506 smp->data.type = SMP_T_SINT;
3507 if (!smp->strm)
3508 return 0;
3509
3510 smp->data.u.sint = TICKS_TO_MS(smp->strm->res.rto);
3511 return 1;
3512}
3513
3514static int smp_fetch_cur_tunnel_timeout(const struct arg *args, struct sample *smp, const char *km, void *private)
3515{
3516 smp->flags = SMP_F_VOL_TXN;
3517 smp->data.type = SMP_T_SINT;
3518 if (!smp->strm)
3519 return 0;
3520
3521 smp->data.u.sint = TICKS_TO_MS(smp->strm->tunnel_timeout);
3522 return 1;
3523}
3524
Amaury Denoyelle12bada52020-12-10 13:43:57 +01003525/* Note: must not be declared <const> as its list will be overwritten.
3526 * Please take care of keeping this list alphabetically sorted.
3527 */
3528static struct sample_fetch_kw_list smp_kws = {ILH, {
Amaury Denoyellef7719a22020-12-10 13:43:58 +01003529 { "cur_server_timeout", smp_fetch_cur_server_timeout, 0, NULL, SMP_T_SINT, SMP_USE_BKEND, },
3530 { "cur_tunnel_timeout", smp_fetch_cur_tunnel_timeout, 0, NULL, SMP_T_SINT, SMP_USE_BKEND, },
Amaury Denoyelle12bada52020-12-10 13:43:57 +01003531 { NULL, NULL, 0, 0, 0 },
3532}};
3533
3534INITCALL1(STG_REGISTER, sample_register_fetches, &smp_kws);
3535
Willy Tarreaubaaee002006-06-26 02:48:02 +02003536/*
3537 * Local variables:
3538 * c-indent-level: 8
3539 * c-basic-offset: 8
3540 * End:
3541 */