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Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
Willy Tarreau87b09662015-04-03 00:22:06 +02002 * Stream management functions.
Willy Tarreaubaaee002006-06-26 02:48:02 +02003 *
Willy Tarreaud28c3532012-04-19 19:28:33 +02004 * Copyright 2000-2012 Willy Tarreau <w@1wt.eu>
Willy Tarreaubaaee002006-06-26 02:48:02 +02005 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 *
11 */
12
13#include <stdlib.h>
Willy Tarreau81f9aa32010-06-01 17:45:26 +020014#include <unistd.h>
15#include <fcntl.h>
Willy Tarreaue3ba5f02006-06-29 18:54:54 +020016
Willy Tarreaua264d962020-06-04 22:29:18 +020017#include <import/ebistree.h>
18
Willy Tarreaudcc048a2020-06-04 19:11:43 +020019#include <haproxy/acl.h>
Willy Tarreau122eba92020-06-04 10:15:32 +020020#include <haproxy/action.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020021#include <haproxy/activity.h>
22#include <haproxy/api.h>
Willy Tarreau3f0f82e2020-06-04 19:42:41 +020023#include <haproxy/applet.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020024#include <haproxy/arg.h>
Willy Tarreau49801602020-06-04 22:50:02 +020025#include <haproxy/backend.h>
Willy Tarreau278161c2020-06-04 11:18:28 +020026#include <haproxy/capture.h>
Willy Tarreau6be78492020-06-05 00:00:29 +020027#include <haproxy/cfgparse.h>
Willy Tarreauf1d32c42020-06-04 21:07:02 +020028#include <haproxy/channel.h>
Willy Tarreau4aa573d2020-06-04 18:21:56 +020029#include <haproxy/check.h>
Willy Tarreau83487a82020-06-04 20:19:54 +020030#include <haproxy/cli.h>
Willy Tarreau7ea393d2020-06-04 18:02:10 +020031#include <haproxy/connection.h>
Willy Tarreau3afc4c42020-06-03 18:23:19 +020032#include <haproxy/dict.h>
Willy 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 Tarreaub9813182021-02-24 11:29:51 +010067/* incremented by each "show sess" to fix a delimiter between streams */
68unsigned stream_epoch = 0;
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
Willy Tarreaub9813182021-02-24 11:29:51 +0100417 s->stream_epoch = _HA_ATOMIC_LOAD(&stream_epoch);
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100418 s->uniq_id = _HA_ATOMIC_XADD(&global.req_count, 1);
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200419
Willy Tarreau87b09662015-04-03 00:22:06 +0200420 /* OK, we're keeping the stream, so let's properly initialize the stream */
Willy Tarreau2542b532012-08-31 16:01:23 +0200421 LIST_INIT(&s->back_refs);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100422
Willy Tarreau90f366b2021-02-20 11:49:49 +0100423 LIST_INIT(&s->buffer_wait.list);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100424 s->buffer_wait.target = s;
Willy Tarreaub882dd82018-11-06 15:50:21 +0100425 s->buffer_wait.wakeup_cb = stream_buf_available;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200426
Willy Tarreau2e9c1d22019-04-24 08:28:31 +0200427 s->call_rate.curr_sec = s->call_rate.curr_ctr = s->call_rate.prev_ctr = 0;
William Lallemandcf62f7e2018-10-26 14:47:40 +0200428 s->pcli_next_pid = 0;
William Lallemandebf61802018-12-11 16:10:57 +0100429 s->pcli_flags = 0;
Tim Duesterhusa17e6622020-03-05 20:19:02 +0100430 s->unique_id = IST_NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200431
Emeric Brunc60def82017-09-27 14:59:38 +0200432 if ((t = task_new(tid_bit)) == NULL)
Willy Tarreau87787ac2017-08-28 16:22:54 +0200433 goto out_fail_alloc;
434
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200435 s->task = t;
Christopher Faulet9d810ca2016-12-08 22:33:52 +0100436 s->pending_events = 0;
Willy Tarreaud1769b82015-04-06 00:25:48 +0200437 t->process = process_stream;
Willy Tarreau2542b532012-08-31 16:01:23 +0200438 t->context = s;
439 t->expire = TICK_ETERNITY;
Willy Tarreau87787ac2017-08-28 16:22:54 +0200440 if (sess->listener)
441 t->nice = sess->listener->nice;
Willy Tarreau2542b532012-08-31 16:01:23 +0200442
Willy Tarreau87b09662015-04-03 00:22:06 +0200443 /* Note: initially, the stream's backend points to the frontend.
Willy Tarreau2542b532012-08-31 16:01:23 +0200444 * This changes later when switching rules are executed or
445 * when the default backend is assigned.
446 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200447 s->be = sess->fe;
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200448 s->req_cap = NULL;
449 s->res_cap = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200450
Willy Tarreauebcd4842015-06-19 11:59:02 +0200451 /* Initialise all the variables contexts even if not used.
452 * This permits to prune these contexts without errors.
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200453 */
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200454 vars_init(&s->vars_txn, SCOPE_TXN);
455 vars_init(&s->vars_reqres, SCOPE_REQ);
456
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200457 /* this part should be common with other protocols */
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200458 if (si_reset(&s->si[0]) < 0)
459 goto out_fail_alloc;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200460 si_set_state(&s->si[0], SI_ST_EST);
Hongbo Longe39683c2017-03-10 18:41:51 +0100461 s->si[0].hcto = sess->fe->timeout.clientfin;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200462
Christopher Faulet0e160ff2019-04-03 10:01:07 +0200463 if (cs && cs->conn->mux) {
464 if (cs->conn->mux->flags & MX_FL_CLEAN_ABRT)
465 s->si[0].flags |= SI_FL_CLEAN_ABRT;
466 if (cs->conn->mux->flags & MX_FL_HTX)
467 s->flags |= SF_HTX;
468 }
Christopher Faulet3494c632019-07-15 14:58:26 +0200469 /* Set SF_HTX flag for HTTP frontends. */
470 if (sess->fe->mode == PR_MODE_HTTP)
Christopher Faulet0e160ff2019-04-03 10:01:07 +0200471 s->flags |= SF_HTX;
Willy Tarreau984fca92017-12-20 16:31:43 +0100472
Willy Tarreau1f52bb22015-04-04 14:28:46 +0200473 /* attach the incoming connection to the stream interface now. */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200474 if (cs)
475 si_attach_cs(&s->si[0], cs);
Willy Tarreau470280e2015-04-05 01:33:13 +0200476 else if (appctx)
477 si_attach_appctx(&s->si[0], appctx);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200478
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200479 if (likely(sess->fe->options2 & PR_O2_INDEPSTR))
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200480 s->si[0].flags |= SI_FL_INDEP_STR;
481
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200482 /* pre-initialize the other side's stream interface to an INIT state. The
483 * callbacks will be initialized before attempting to connect.
484 */
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200485 if (si_reset(&s->si[1]) < 0)
486 goto out_fail_alloc_si1;
Hongbo Longe39683c2017-03-10 18:41:51 +0100487 s->si[1].hcto = TICK_ETERNITY;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200488
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200489 if (likely(sess->fe->options2 & PR_O2_INDEPSTR))
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200490 s->si[1].flags |= SI_FL_INDEP_STR;
491
Willy Tarreau87b09662015-04-03 00:22:06 +0200492 stream_init_srv_conn(s);
Willy Tarreau9b82d942016-12-05 00:26:31 +0100493 s->target = sess->listener ? sess->listener->default_target : NULL;
Willy Tarreau90420602019-07-18 15:09:57 +0200494 s->target_addr = NULL;
Willy Tarreau9b82d942016-12-05 00:26:31 +0100495
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200496 s->pend_pos = NULL;
Patrick Hemmer268a7072018-05-11 12:52:31 -0400497 s->priority_class = 0;
498 s->priority_offset = 0;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200499
500 /* init store persistence */
501 s->store_count = 0;
502
Christopher Faulet16df1782020-12-04 16:47:41 +0100503 channel_init(&s->req);
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100504 s->req.flags |= CF_READ_ATTACHED; /* the producer is already connected */
Willy Tarreau9b82d942016-12-05 00:26:31 +0100505 s->req.analysers = sess->listener ? sess->listener->analysers : 0;
Willy Tarreaue223e3b2017-11-18 15:39:10 +0100506
507 if (!sess->fe->fe_req_ana) {
508 channel_auto_connect(&s->req); /* don't wait to establish connection */
509 channel_auto_close(&s->req); /* let the producer forward close requests */
510 }
Willy Tarreauc8815ef2015-04-05 18:15:59 +0200511
512 s->req.rto = sess->fe->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100513 s->req.wto = TICK_ETERNITY;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100514 s->req.rex = TICK_ETERNITY;
515 s->req.wex = TICK_ETERNITY;
516 s->req.analyse_exp = TICK_ETERNITY;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200517
Christopher Faulet16df1782020-12-04 16:47:41 +0100518 channel_init(&s->res);
Willy Tarreauef573c02014-11-28 14:17:09 +0100519 s->res.flags |= CF_ISRESP;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100520 s->res.analysers = 0;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200521
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200522 if (sess->fe->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100523 s->req.flags |= CF_NEVER_WAIT;
524 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200525 }
526
Willy Tarreauc8815ef2015-04-05 18:15:59 +0200527 s->res.wto = sess->fe->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100528 s->res.rto = TICK_ETERNITY;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100529 s->res.rex = TICK_ETERNITY;
530 s->res.wex = TICK_ETERNITY;
531 s->res.analyse_exp = TICK_ETERNITY;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200532
Willy Tarreaueee5b512015-04-03 23:46:31 +0200533 s->txn = NULL;
Thierry FOURNIER2c8b54e2016-12-17 12:45:32 +0100534 s->hlua = NULL;
Thierry FOURNIER65f34c62015-02-16 20:11:43 +0100535
Emeric Brun08622d32020-12-23 17:41:43 +0100536 s->resolv_ctx.requester = NULL;
537 s->resolv_ctx.hostname_dn = NULL;
538 s->resolv_ctx.hostname_dn_len = 0;
539 s->resolv_ctx.parent = NULL;
Frédéric Lécaillebed883a2019-04-23 17:26:33 +0200540
Amaury Denoyellefb504432020-12-10 13:43:53 +0100541 s->tunnel_timeout = TICK_ETERNITY;
542
Willy Tarreaua698eb62021-02-24 10:37:01 +0100543 LIST_ADDQ(&ti->streams, &s->list);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200544
Christopher Faulet92d36382015-11-05 13:35:03 +0100545 if (flt_stream_init(s) < 0 || flt_stream_start(s) < 0)
Christopher Fauletd7c91962015-04-30 11:48:27 +0200546 goto out_fail_accept;
547
Olivier Houcharda254a372019-04-05 15:30:12 +0200548 s->si[1].l7_buffer = BUF_NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200549 /* finish initialization of the accepted file descriptor */
Olivier Houchard53216e72018-10-10 15:46:36 +0200550 if (appctx)
Willy Tarreau0cd3bd62018-11-06 18:46:37 +0100551 si_want_get(&s->si[0]);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200552
Willy Tarreaufb9f5842015-04-05 18:19:23 +0200553 if (sess->fe->accept && sess->fe->accept(s) < 0)
Willy Tarreauc5a7ff42015-04-05 11:52:08 +0200554 goto out_fail_accept;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200555
Christopher Faulet16df1782020-12-04 16:47:41 +0100556 if (!b_is_null(input)) {
557 /* Xfer the input buffer to the request channel. <input> will
558 * than point to BUF_NULL. From this point, it is the stream
559 * responsibility to release it.
560 */
561 s->req.buf = *input;
562 *input = BUF_NULL;
Christopher Fauletc43fca02020-12-04 17:22:49 +0100563 s->req.total = (IS_HTX_STRM(s) ? htxbuf(&s->req.buf)->data : b_data(&s->req.buf));
Christopher Faulet16df1782020-12-04 16:47:41 +0100564 s->req.flags |= (s->req.total ? CF_READ_PARTIAL : 0);
565 }
566
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200567 /* it is important not to call the wakeup function directly but to
568 * pass through task_wakeup(), because this one knows how to apply
Emeric Brun5f77fef2017-05-29 15:26:51 +0200569 * priorities to tasks. Using multi thread we must be sure that
570 * stream is fully initialized before calling task_wakeup. So
571 * the caller must handle the task_wakeup
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200572 */
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100573 DBG_TRACE_LEAVE(STRM_EV_STRM_NEW, s);
Willy Tarreau02d86382015-04-05 12:00:52 +0200574 return s;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200575
576 /* Error unrolling */
Willy Tarreauc5a7ff42015-04-05 11:52:08 +0200577 out_fail_accept:
Christopher Faulet92d36382015-11-05 13:35:03 +0100578 flt_stream_release(s, 0);
Olivier Houchard3f795f72019-04-17 22:51:06 +0200579 task_destroy(t);
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200580 tasklet_free(s->si[1].wait_event.tasklet);
Willy Tarreaue5f229e2018-10-15 11:08:55 +0200581 LIST_DEL(&s->list);
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200582out_fail_alloc_si1:
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200583 tasklet_free(s->si[0].wait_event.tasklet);
Willy Tarreau87787ac2017-08-28 16:22:54 +0200584 out_fail_alloc:
Willy Tarreaubafbe012017-11-24 17:34:44 +0100585 pool_free(pool_head_stream, s);
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100586 DBG_TRACE_DEVEL("leaving on error", STRM_EV_STRM_NEW|STRM_EV_STRM_ERR);
Willy Tarreau02d86382015-04-05 12:00:52 +0200587 return NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200588}
589
Willy Tarreaubaaee002006-06-26 02:48:02 +0200590/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200591 * frees the context associated to a stream. It must have been removed first.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200592 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200593static void stream_free(struct stream *s)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200594{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200595 struct session *sess = strm_sess(s);
596 struct proxy *fe = sess->fe;
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100597 struct bref *bref, *back;
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200598 struct conn_stream *cli_cs = objt_cs(s->si[0].end);
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100599 int must_free_sess;
Willy Tarreaua4cda672010-06-06 18:28:49 +0200600 int i;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100601
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100602 DBG_TRACE_POINT(STRM_EV_STRM_FREE, s);
603
Willy Tarreau0ad46fa2019-05-17 14:20:05 +0200604 /* detach the stream from its own task before even releasing it so
605 * that walking over a task list never exhibits a dying stream.
606 */
607 s->task->context = NULL;
608 __ha_barrier_store();
609
Willy Tarreaud0ad4a82018-07-25 11:13:53 +0200610 pendconn_free(s);
Willy Tarreau922a8062008-12-04 09:33:58 +0100611
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100612 if (objt_server(s->target)) { /* there may be requests left pending in queue */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200613 if (s->flags & SF_CURR_SESS) {
614 s->flags &= ~SF_CURR_SESS;
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100615 _HA_ATOMIC_SUB(&__objt_server(s->target)->cur_sess, 1);
Willy Tarreau1e62de62008-11-11 20:20:02 +0100616 }
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100617 if (may_dequeue_tasks(objt_server(s->target), s->be))
618 process_srv_queue(objt_server(s->target));
Willy Tarreau1e62de62008-11-11 20:20:02 +0100619 }
Willy Tarreau922a8062008-12-04 09:33:58 +0100620
Willy Tarreau7c669d72008-06-20 15:04:11 +0200621 if (unlikely(s->srv_conn)) {
Willy Tarreau87b09662015-04-03 00:22:06 +0200622 /* the stream still has a reserved slot on a server, but
Willy Tarreau7c669d72008-06-20 15:04:11 +0200623 * it should normally be only the same as the one above,
624 * so this should not happen in fact.
625 */
626 sess_change_server(s, NULL);
627 }
628
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100629 if (s->req.pipe)
630 put_pipe(s->req.pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100631
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100632 if (s->res.pipe)
633 put_pipe(s->res.pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100634
Willy Tarreaubf883e02014-11-25 21:10:35 +0100635 /* We may still be present in the buffer wait queue */
Willy Tarreau90f366b2021-02-20 11:49:49 +0100636 if (LIST_ADDED(&s->buffer_wait.list))
637 LIST_DEL_INIT(&s->buffer_wait.list);
Willy Tarreau21046592020-02-26 10:39:36 +0100638
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200639 if (s->req.buf.size || s->res.buf.size) {
Willy Tarreau4d77bbf2021-02-20 12:02:46 +0100640 int count = !!s->req.buf.size + !!s->res.buf.size;
641
Willy Tarreaue0d0b402019-08-08 08:06:27 +0200642 b_free(&s->req.buf);
643 b_free(&s->res.buf);
Willy Tarreau4d77bbf2021-02-20 12:02:46 +0100644 offer_buffers(NULL, count);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100645 }
Willy Tarreau9b28e032012-10-12 23:49:43 +0200646
Tim Duesterhusa17e6622020-03-05 20:19:02 +0100647 pool_free(pool_head_uniqueid, s->unique_id.ptr);
648 s->unique_id = IST_NULL;
Olivier Houchard32211a12019-02-01 18:10:46 +0100649
Thierry FOURNIER2c8b54e2016-12-17 12:45:32 +0100650 hlua_ctx_destroy(s->hlua);
651 s->hlua = NULL;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200652 if (s->txn)
653 http_end_txn(s);
Willy Tarreau46023632010-01-07 22:51:47 +0100654
Willy Tarreau1e954912012-10-12 17:50:05 +0200655 /* ensure the client-side transport layer is destroyed */
Willy Tarreau32560732017-10-08 11:33:44 +0200656 if (cli_cs)
657 cs_close(cli_cs);
Willy Tarreau1e954912012-10-12 17:50:05 +0200658
Willy Tarreaua4cda672010-06-06 18:28:49 +0200659 for (i = 0; i < s->store_count; i++) {
660 if (!s->store[i].ts)
661 continue;
662 stksess_free(s->store[i].table, s->store[i].ts);
663 s->store[i].ts = NULL;
664 }
665
Willy Tarreaueee5b512015-04-03 23:46:31 +0200666 if (s->txn) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100667 pool_free(pool_head_http_txn, s->txn);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200668 s->txn = NULL;
669 }
670
Emeric Brun08622d32020-12-23 17:41:43 +0100671 if (s->resolv_ctx.requester) {
Emeric Brun21fbeed2020-12-23 18:01:04 +0100672 __decl_thread(struct resolvers *resolvers = s->resolv_ctx.parent->arg.resolv.resolvers);
Christopher Faulet5098a082020-07-22 11:46:32 +0200673
674 HA_SPIN_LOCK(DNS_LOCK, &resolvers->lock);
Willy Tarreau61cfdf42021-02-20 10:46:51 +0100675 ha_free(&s->resolv_ctx.hostname_dn);
Emeric Brun08622d32020-12-23 17:41:43 +0100676 s->resolv_ctx.hostname_dn_len = 0;
Emeric Brund30e9a12020-12-23 18:49:16 +0100677 resolv_unlink_resolution(s->resolv_ctx.requester);
Christopher Faulet5098a082020-07-22 11:46:32 +0200678 HA_SPIN_UNLOCK(DNS_LOCK, &resolvers->lock);
Baptiste Assmann333939c2019-01-21 08:34:50 +0100679
Emeric Brun08622d32020-12-23 17:41:43 +0100680 pool_free(resolv_requester_pool, s->resolv_ctx.requester);
681 s->resolv_ctx.requester = NULL;
Baptiste Assmann333939c2019-01-21 08:34:50 +0100682 }
683
Christopher Fauletd7c91962015-04-30 11:48:27 +0200684 flt_stream_stop(s);
Christopher Faulet92d36382015-11-05 13:35:03 +0100685 flt_stream_release(s, 0);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200686
Willy Tarreau92fb9832007-10-16 17:34:28 +0200687 if (fe) {
Christopher Faulet59399252019-11-07 14:27:52 +0100688 if (s->req_cap) {
689 struct cap_hdr *h;
690 for (h = fe->req_cap; h; h = h->next)
691 pool_free(h->pool, s->req_cap[h->index]);
692 }
693
694 if (s->res_cap) {
695 struct cap_hdr *h;
696 for (h = fe->rsp_cap; h; h = h->next)
697 pool_free(h->pool, s->res_cap[h->index]);
698 }
699
Willy Tarreaubafbe012017-11-24 17:34:44 +0100700 pool_free(fe->rsp_cap_pool, s->res_cap);
701 pool_free(fe->req_cap_pool, s->req_cap);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200702 }
Willy Tarreau0937bc42009-12-22 15:03:09 +0100703
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200704 /* Cleanup all variable contexts. */
Willy Tarreaucda7f3f2018-10-28 13:44:36 +0100705 if (!LIST_ISEMPTY(&s->vars_txn.head))
706 vars_prune(&s->vars_txn, s->sess, s);
707 if (!LIST_ISEMPTY(&s->vars_reqres.head))
708 vars_prune(&s->vars_reqres, s->sess, s);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200709
Willy Tarreau87b09662015-04-03 00:22:06 +0200710 stream_store_counters(s);
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +0200711
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 Tarreau49de6852021-02-24 13:46:12 +0100714 * this stream was the last one in the list. This is safe to do
715 * here because we're touching our thread's list so we know
716 * that other streams are not active, and the watchers will
717 * only touch their node under thread isolation.
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100718 */
Willy Tarreau49de6852021-02-24 13:46:12 +0100719 LIST_DEL_INIT(&bref->users);
Willy Tarreaua698eb62021-02-24 10:37:01 +0100720 if (s->list.n != &ti->streams)
Willy Tarreau87b09662015-04-03 00:22:06 +0200721 LIST_ADDQ(&LIST_ELEM(s->list.n, struct stream *, list)->back_refs, &bref->users);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100722 bref->ref = s->list.n;
Willy Tarreau49de6852021-02-24 13:46:12 +0100723 __ha_barrier_store();
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100724 }
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100725 LIST_DEL(&s->list);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200726
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100727 /* applets do not release session yet */
728 must_free_sess = objt_appctx(sess->origin) && sess->origin == s->si[0].end;
729
Olivier Houchard4fdec7a2018-10-11 17:09:14 +0200730
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200731 si_release_endpoint(&s->si[1]);
732 si_release_endpoint(&s->si[0]);
Willy Tarreaufeb76402015-04-03 14:10:06 +0200733
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200734 tasklet_free(s->si[0].wait_event.tasklet);
735 tasklet_free(s->si[1].wait_event.tasklet);
Olivier Houchardd7bd3e32018-10-18 16:22:02 +0200736
Olivier Houcharda254a372019-04-05 15:30:12 +0200737 b_free(&s->si[1].l7_buffer);
Olivier Houchard25607af2018-11-23 14:50:47 +0100738 if (must_free_sess) {
739 sess->origin = NULL;
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100740 session_free(sess);
Olivier Houchard25607af2018-11-23 14:50:47 +0100741 }
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100742
Willy Tarreau90420602019-07-18 15:09:57 +0200743 sockaddr_free(&s->target_addr);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100744 pool_free(pool_head_stream, s);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200745
746 /* We may want to free the maximum amount of pools if the proxy is stopping */
Willy Tarreauc3914d42020-09-24 08:39:22 +0200747 if (fe && unlikely(fe->disabled)) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100748 pool_flush(pool_head_buffer);
749 pool_flush(pool_head_http_txn);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100750 pool_flush(pool_head_requri);
751 pool_flush(pool_head_capture);
752 pool_flush(pool_head_stream);
753 pool_flush(pool_head_session);
754 pool_flush(pool_head_connection);
755 pool_flush(pool_head_pendconn);
756 pool_flush(fe->req_cap_pool);
757 pool_flush(fe->rsp_cap_pool);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200758 }
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200759}
760
Willy Tarreau656859d2014-11-25 19:46:36 +0100761
Willy Tarreau87b09662015-04-03 00:22:06 +0200762/* Allocates a work buffer for stream <s>. It is meant to be called inside
763 * process_stream(). It will only allocate the side needed for the function
Willy Tarreaubc39a5d2015-04-20 15:52:18 +0200764 * to work fine, which is the response buffer so that an error message may be
765 * built and returned. Response buffers may be allocated from the reserve, this
766 * is critical to ensure that a response may always flow and will never block a
767 * server from releasing a connection. Returns 0 in case of failure, non-zero
768 * otherwise.
Willy Tarreau656859d2014-11-25 19:46:36 +0100769 */
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100770static int stream_alloc_work_buffer(struct stream *s)
Willy Tarreau656859d2014-11-25 19:46:36 +0100771{
Willy Tarreau90f366b2021-02-20 11:49:49 +0100772 if (LIST_ADDED(&s->buffer_wait.list))
773 LIST_DEL_INIT(&s->buffer_wait.list);
Willy Tarreau656859d2014-11-25 19:46:36 +0100774
Willy Tarreaubc39a5d2015-04-20 15:52:18 +0200775 if (b_alloc_margin(&s->res.buf, 0))
Willy Tarreau656859d2014-11-25 19:46:36 +0100776 return 1;
777
Willy Tarreau90f366b2021-02-20 11:49:49 +0100778 LIST_ADDQ(&ti->buffer_wq, &s->buffer_wait.list);
Willy Tarreau656859d2014-11-25 19:46:36 +0100779 return 0;
780}
781
782/* releases unused buffers after processing. Typically used at the end of the
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100783 * update() functions. It will try to wake up as many tasks/applets as the
784 * number of buffers that it releases. In practice, most often streams are
785 * blocked on a single buffer, so it makes sense to try to wake two up when two
786 * buffers are released at once.
Willy Tarreau656859d2014-11-25 19:46:36 +0100787 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200788void stream_release_buffers(struct stream *s)
Willy Tarreau656859d2014-11-25 19:46:36 +0100789{
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100790 int offer = 0;
Willy Tarreau656859d2014-11-25 19:46:36 +0100791
Willy Tarreau0c7ed5d2018-07-10 09:53:31 +0200792 if (c_size(&s->req) && c_empty(&s->req)) {
Willy Tarreau4d77bbf2021-02-20 12:02:46 +0100793 offer++;
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100794 b_free(&s->req.buf);
795 }
Willy Tarreau0c7ed5d2018-07-10 09:53:31 +0200796 if (c_size(&s->res) && c_empty(&s->res)) {
Willy Tarreau4d77bbf2021-02-20 12:02:46 +0100797 offer++;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100798 b_free(&s->res.buf);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100799 }
Willy Tarreau656859d2014-11-25 19:46:36 +0100800
Willy Tarreaubf883e02014-11-25 21:10:35 +0100801 /* if we're certain to have at least 1 buffer available, and there is
802 * someone waiting, we can wake up a waiter and offer them.
803 */
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100804 if (offer)
Willy Tarreau4d77bbf2021-02-20 12:02:46 +0100805 offer_buffers(s, offer);
Willy Tarreau656859d2014-11-25 19:46:36 +0100806}
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200807
Willy Tarreau87b09662015-04-03 00:22:06 +0200808void stream_process_counters(struct stream *s)
Willy Tarreau30e71012007-11-26 20:15:35 +0100809{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200810 struct session *sess = s->sess;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100811 unsigned long long bytes;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100812 int i;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100813
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100814 bytes = s->req.total - s->logs.bytes_in;
815 s->logs.bytes_in = s->req.total;
816 if (bytes) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100817 _HA_ATOMIC_ADD(&sess->fe->fe_counters.bytes_in, bytes);
818 _HA_ATOMIC_ADD(&s->be->be_counters.bytes_in, bytes);
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100819
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100820 if (objt_server(s->target))
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100821 _HA_ATOMIC_ADD(&objt_server(s->target)->counters.bytes_in, bytes);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200822
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200823 if (sess->listener && sess->listener->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100824 _HA_ATOMIC_ADD(&sess->listener->counters->bytes_in, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200825
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100826 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Christopher Faulet84600632020-10-06 13:52:40 +0200827 if (!stkctr_inc_bytes_in_ctr(&s->stkctr[i], bytes))
828 stkctr_inc_bytes_in_ctr(&sess->stkctr[i], bytes);
Willy Tarreau30e71012007-11-26 20:15:35 +0100829 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100830 }
831
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100832 bytes = s->res.total - s->logs.bytes_out;
833 s->logs.bytes_out = s->res.total;
834 if (bytes) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100835 _HA_ATOMIC_ADD(&sess->fe->fe_counters.bytes_out, bytes);
836 _HA_ATOMIC_ADD(&s->be->be_counters.bytes_out, bytes);
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100837
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100838 if (objt_server(s->target))
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100839 _HA_ATOMIC_ADD(&objt_server(s->target)->counters.bytes_out, bytes);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200840
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200841 if (sess->listener && sess->listener->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100842 _HA_ATOMIC_ADD(&sess->listener->counters->bytes_out, bytes);
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200843
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100844 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Christopher Faulet84600632020-10-06 13:52:40 +0200845 if (!stkctr_inc_bytes_out_ctr(&s->stkctr[i], bytes))
846 stkctr_inc_bytes_out_ctr(&sess->stkctr[i], bytes);
Willy Tarreau30e71012007-11-26 20:15:35 +0100847 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100848 }
849}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200850
Amaury Denoyelleb7150782020-12-10 13:43:51 +0100851int stream_set_timeout(struct stream *s, enum act_timeout_name name, int timeout)
852{
Amaury Denoyelle90d3d882020-12-10 13:43:52 +0100853 switch (name) {
854 case ACT_TIMEOUT_SERVER:
855 s->req.wto = timeout;
856 s->res.rto = timeout;
857 return 1;
858
Amaury Denoyellefb504432020-12-10 13:43:53 +0100859 case ACT_TIMEOUT_TUNNEL:
860 s->tunnel_timeout = timeout;
861 return 1;
862
Amaury Denoyelle90d3d882020-12-10 13:43:52 +0100863 default:
864 return 0;
865 }
Amaury Denoyelleb7150782020-12-10 13:43:51 +0100866}
867
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100868/*
869 * This function handles the transition between the SI_ST_CON state and the
Willy Tarreau85e7d002010-05-31 11:57:51 +0200870 * SI_ST_EST state. It must only be called after switching from SI_ST_CON (or
Willy Tarreau4f283fa2019-06-05 14:34:03 +0200871 * 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 +0200872 * Note that it will switch the interface to SI_ST_DIS if we already have
873 * the CF_SHUTR flag, it means we were able to forward the request, and
874 * receive the response, before process_stream() had the opportunity to
875 * make the switch from SI_ST_CON to SI_ST_EST. When that happens, we want
Willy Tarreau3a9312a2020-01-09 18:43:15 +0100876 * to go through back_establish() anyway, to make sure the analysers run.
Willy Tarreaud66ed882019-06-05 18:02:04 +0200877 * Timeouts are cleared. Error are reported on the channel so that analysers
878 * can handle them.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100879 */
Willy Tarreau3a9312a2020-01-09 18:43:15 +0100880static void back_establish(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100881{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100882 struct stream_interface *si = &s->si[1];
Willy Tarreaud66ed882019-06-05 18:02:04 +0200883 struct conn_stream *srv_cs = objt_cs(si->end);
884 struct connection *conn = srv_cs ? srv_cs->conn : objt_conn(si->end);
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100885 struct channel *req = &s->req;
886 struct channel *rep = &s->res;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100887
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100888 DBG_TRACE_ENTER(STRM_EV_STRM_PROC|STRM_EV_SI_ST, s);
Willy Tarreaud66ed882019-06-05 18:02:04 +0200889 /* First, centralize the timers information, and clear any irrelevant
890 * timeout.
891 */
Willy Tarreau0e37f1c2013-12-31 23:06:46 +0100892 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreaud66ed882019-06-05 18:02:04 +0200893 si->exp = TICK_ETERNITY;
894 si->flags &= ~SI_FL_EXP;
895
896 /* errors faced after sending data need to be reported */
897 if (si->flags & SI_FL_ERR && req->flags & CF_WROTE_DATA) {
898 /* Don't add CF_WRITE_ERROR if we're here because
899 * early data were rejected by the server, or
900 * http_wait_for_response() will never be called
901 * to send a 425.
902 */
903 if (conn && conn->err_code != CO_ER_SSL_EARLY_FAILED)
904 req->flags |= CF_WRITE_ERROR;
905 rep->flags |= CF_READ_ERROR;
906 si->err_type = SI_ET_DATA_ERR;
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100907 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 +0200908 }
909
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100910 if (objt_server(s->target))
911 health_adjust(objt_server(s->target), HANA_STATUS_L4_OK);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100912
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100913 if (s->be->mode == PR_MODE_TCP) { /* let's allow immediate data connection in this case */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100914 /* if the user wants to log as soon as possible, without counting
915 * bytes from the server, then this is the right moment. */
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200916 if (!LIST_ISEMPTY(&strm_fe(s)->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau66425e32018-07-25 06:55:12 +0200917 /* note: no pend_pos here, session is established */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100918 s->logs.t_close = s->logs.t_connect; /* to get a valid end date */
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100919 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100920 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100921 }
922 else {
Willy Tarreaud81ca042013-12-31 22:33:13 +0100923 rep->flags |= CF_READ_DONTWAIT; /* a single read is enough to get response headers */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100924 }
925
Willy Tarreau0007d0a2018-12-11 18:01:38 +0100926 rep->analysers |= strm_fe(s)->fe_rsp_ana | s->be->be_rsp_ana;
Christopher Faulet309c6412015-12-02 09:57:32 +0100927
Willy Tarreau0007d0a2018-12-11 18:01:38 +0100928 /* Be sure to filter response headers if the backend is an HTTP proxy
929 * and if there are filters attached to the stream. */
930 if (s->be->mode == PR_MODE_HTTP && HAS_FILTERS(s))
931 rep->analysers |= AN_RES_FLT_HTTP_HDRS;
Christopher Faulet309c6412015-12-02 09:57:32 +0100932
Willy Tarreau8bb2ffb2018-11-14 17:54:13 +0100933 si_rx_endp_more(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200934 rep->flags |= CF_READ_ATTACHED; /* producer is now attached */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200935 if (objt_cs(si->end)) {
Amaury Denoyelle90d3d882020-12-10 13:43:52 +0100936 /* real connections have timeouts
937 * if already defined, it means that a set-timeout rule has
938 * been executed so do not overwrite them
939 */
940 if (!tick_isset(req->wto))
941 req->wto = s->be->timeout.server;
942 if (!tick_isset(rep->rto))
943 rep->rto = s->be->timeout.server;
Amaury Denoyellefb504432020-12-10 13:43:53 +0100944 if (!tick_isset(s->tunnel_timeout))
945 s->tunnel_timeout = s->be->timeout.tunnel;
Amaury Denoyelle90d3d882020-12-10 13:43:52 +0100946
Olivier Houchard47e9a1a2018-11-07 17:55:19 +0100947 /* The connection is now established, try to read data from the
948 * underlying layer, and subscribe to recv events. We use a
949 * delayed recv here to give a chance to the data to flow back
950 * by the time we process other tasks.
951 */
952 si_chk_rcv(si);
Willy Tarreaud04e8582010-05-31 12:31:35 +0200953 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100954 req->wex = TICK_ETERNITY;
Olivier Houchard78595262019-07-26 14:54:34 +0200955 /* If we managed to get the whole response, and we don't have anything
956 * left to send, or can't, switch to SI_ST_DIS now. */
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100957 if (rep->flags & (CF_SHUTR | CF_SHUTW)) {
Olivier Houchardaacc4052019-05-21 17:43:50 +0200958 si->state = SI_ST_DIS;
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100959 DBG_TRACE_STATE("response channel shutdwn for read/write", STRM_EV_STRM_PROC|STRM_EV_SI_ST|STRM_EV_STRM_ERR, s);
960 }
961
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100962 DBG_TRACE_LEAVE(STRM_EV_STRM_PROC|STRM_EV_SI_ST, s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100963}
964
Willy Tarreau87b09662015-04-03 00:22:06 +0200965/* Set correct stream termination flags in case no analyser has done it. It
Simon Hormandec5be42011-06-08 09:19:07 +0900966 * also counts a failed request if the server state has not reached the request
967 * stage.
968 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200969static void sess_set_term_flags(struct stream *s)
Simon Hormandec5be42011-06-08 09:19:07 +0900970{
Willy Tarreaue7dff022015-04-03 01:14:29 +0200971 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +0200972 if (s->si[1].state == SI_ST_INI) {
973 /* anything before REQ in fact */
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100974 _HA_ATOMIC_ADD(&strm_fe(s)->fe_counters.failed_req, 1);
Willy Tarreau2c1068c2015-09-23 12:21:21 +0200975 if (strm_li(s) && strm_li(s)->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100976 _HA_ATOMIC_ADD(&strm_li(s)->counters->failed_req, 1);
Simon Hormandec5be42011-06-08 09:19:07 +0900977
Willy Tarreaue7dff022015-04-03 01:14:29 +0200978 s->flags |= SF_FINST_R;
Simon Hormandec5be42011-06-08 09:19:07 +0900979 }
980 else if (s->si[1].state == SI_ST_QUE)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200981 s->flags |= SF_FINST_Q;
Willy Tarreau4f283fa2019-06-05 14:34:03 +0200982 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 +0200983 s->flags |= SF_FINST_C;
Simon Hormandec5be42011-06-08 09:19:07 +0900984 else if (s->si[1].state == SI_ST_EST || s->si[1].prev_state == SI_ST_EST)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200985 s->flags |= SF_FINST_D;
Simon Hormandec5be42011-06-08 09:19:07 +0900986 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200987 s->flags |= SF_FINST_L;
Simon Hormandec5be42011-06-08 09:19:07 +0900988 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100989}
990
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200991/* This function parses the use-service action ruleset. It executes
992 * the associated ACL and set an applet as a stream or txn final node.
993 * it returns ACT_RET_ERR if an error occurs, the proxy left in
Ilya Shipitsinc02a23f2020-05-06 00:53:22 +0500994 * consistent state. It returns ACT_RET_STOP in success case because
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200995 * use-service must be a terminal action. Returns ACT_RET_YIELD
996 * if the initialisation function require more data.
997 */
998enum act_return process_use_service(struct act_rule *rule, struct proxy *px,
999 struct session *sess, struct stream *s, int flags)
1000
1001{
1002 struct appctx *appctx;
1003
1004 /* Initialises the applet if it is required. */
Christopher Faulet105ba6c2019-12-18 14:41:51 +01001005 if (flags & ACT_OPT_FIRST) {
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001006 /* Register applet. this function schedules the applet. */
1007 s->target = &rule->applet.obj_type;
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001008 if (unlikely(!si_register_handler(&s->si[1], objt_applet(s->target))))
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001009 return ACT_RET_ERR;
1010
1011 /* Initialise the context. */
1012 appctx = si_appctx(&s->si[1]);
1013 memset(&appctx->ctx, 0, sizeof(appctx->ctx));
1014 appctx->rule = rule;
1015 }
1016 else
1017 appctx = si_appctx(&s->si[1]);
1018
Ilya Shipitsinc02a23f2020-05-06 00:53:22 +05001019 /* Stops the applet scheduling, in case of the init function miss
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001020 * some data.
1021 */
Willy Tarreau0cd3bd62018-11-06 18:46:37 +01001022 si_stop_get(&s->si[1]);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001023
1024 /* Call initialisation. */
1025 if (rule->applet.init)
1026 switch (rule->applet.init(appctx, px, s)) {
1027 case 0: return ACT_RET_ERR;
1028 case 1: break;
1029 default: return ACT_RET_YIELD;
1030 }
1031
Christopher Faulet2571bc62019-03-01 11:44:26 +01001032 if (rule->from != ACT_F_HTTP_REQ) {
1033 if (sess->fe == s->be) /* report it if the request was intercepted by the frontend */
1034 _HA_ATOMIC_ADD(&sess->fe->fe_counters.intercepted_req, 1);
1035
1036 /* The flag SF_ASSIGNED prevent from server assignment. */
1037 s->flags |= SF_ASSIGNED;
1038 }
1039
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001040 /* Now we can schedule the applet. */
Willy Tarreau0cd3bd62018-11-06 18:46:37 +01001041 si_cant_get(&s->si[1]);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001042 appctx_wakeup(appctx);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001043 return ACT_RET_STOP;
1044}
1045
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001046/* This stream analyser checks the switching rules and changes the backend
Willy Tarreau4de91492010-01-22 19:10:05 +01001047 * if appropriate. The default_backend rule is also considered, then the
1048 * target backend's forced persistence rules are also evaluated last if any.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001049 * It returns 1 if the processing can continue on next analysers, or zero if it
1050 * either needs more data or wants to immediately abort the request.
1051 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001052static int process_switching_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001053{
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001054 struct persist_rule *prst_rule;
Willy Tarreau192252e2015-04-04 01:47:55 +02001055 struct session *sess = s->sess;
1056 struct proxy *fe = sess->fe;
Willy Tarreau4de91492010-01-22 19:10:05 +01001057
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001058 req->analysers &= ~an_bit;
1059 req->analyse_exp = TICK_ETERNITY;
1060
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001061 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001062
1063 /* now check whether we have some switching rules for this request */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001064 if (!(s->flags & SF_BE_ASSIGNED)) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001065 struct switching_rule *rule;
1066
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001067 list_for_each_entry(rule, &fe->switching_rules, list) {
Willy Tarreauf51658d2014-04-23 01:21:56 +02001068 int ret = 1;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001069
Willy Tarreauf51658d2014-04-23 01:21:56 +02001070 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001071 ret = acl_exec_cond(rule->cond, fe, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001072 ret = acl_pass(ret);
1073 if (rule->cond->pol == ACL_COND_UNLESS)
1074 ret = !ret;
1075 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001076
1077 if (ret) {
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001078 /* If the backend name is dynamic, try to resolve the name.
1079 * If we can't resolve the name, or if any error occurs, break
1080 * the loop and fallback to the default backend.
1081 */
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001082 struct proxy *backend = NULL;
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001083
1084 if (rule->dynamic) {
Willy Tarreau83061a82018-07-13 11:56:34 +02001085 struct buffer *tmp;
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001086
1087 tmp = alloc_trash_chunk();
1088 if (!tmp)
1089 goto sw_failed;
1090
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001091 if (build_logline(s, tmp->area, tmp->size, &rule->be.expr))
1092 backend = proxy_be_by_name(tmp->area);
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001093
1094 free_trash_chunk(tmp);
1095 tmp = NULL;
1096
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001097 if (!backend)
1098 break;
1099 }
1100 else
1101 backend = rule->be.backend;
1102
Willy Tarreau87b09662015-04-03 00:22:06 +02001103 if (!stream_set_backend(s, backend))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001104 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001105 break;
1106 }
1107 }
1108
1109 /* To ensure correct connection accounting on the backend, we
1110 * have to assign one if it was not set (eg: a listen). This
1111 * measure also takes care of correctly setting the default
1112 * backend if any.
1113 */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001114 if (!(s->flags & SF_BE_ASSIGNED))
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001115 if (!stream_set_backend(s, fe->defbe.be ? fe->defbe.be : s->be))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001116 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001117 }
1118
Willy Tarreaufb356202010-08-03 14:02:05 +02001119 /* 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 +02001120 if (fe == s->be) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001121 s->req.analysers &= ~AN_REQ_INSPECT_BE;
1122 s->req.analysers &= ~AN_REQ_HTTP_PROCESS_BE;
Christopher Faulet0184ea72017-01-05 14:06:34 +01001123 s->req.analysers &= ~AN_REQ_FLT_START_BE;
Willy Tarreaufb356202010-08-03 14:02:05 +02001124 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001125
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001126 /* 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 +02001127 * persistence rule, and report that in the stream.
Willy Tarreau4de91492010-01-22 19:10:05 +01001128 */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001129 list_for_each_entry(prst_rule, &s->be->persist_rules, list) {
Willy Tarreau4de91492010-01-22 19:10:05 +01001130 int ret = 1;
1131
1132 if (prst_rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001133 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 +01001134 ret = acl_pass(ret);
1135 if (prst_rule->cond->pol == ACL_COND_UNLESS)
1136 ret = !ret;
1137 }
1138
1139 if (ret) {
1140 /* no rule, or the rule matches */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001141 if (prst_rule->type == PERSIST_TYPE_FORCE) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001142 s->flags |= SF_FORCE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001143 } else {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001144 s->flags |= SF_IGNORE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001145 }
Willy Tarreau4de91492010-01-22 19:10:05 +01001146 break;
1147 }
1148 }
1149
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001150 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001151 return 1;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001152
1153 sw_failed:
1154 /* immediately abort this request in case of allocation failure */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001155 channel_abort(&s->req);
1156 channel_abort(&s->res);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001157
Willy Tarreaue7dff022015-04-03 01:14:29 +02001158 if (!(s->flags & SF_ERR_MASK))
1159 s->flags |= SF_ERR_RESOURCE;
1160 if (!(s->flags & SF_FINST_MASK))
1161 s->flags |= SF_FINST_R;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001162
Willy Tarreaueee5b512015-04-03 23:46:31 +02001163 if (s->txn)
1164 s->txn->status = 500;
Christopher Faulet0184ea72017-01-05 14:06:34 +01001165 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001166 s->req.analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001167 DBG_TRACE_DEVEL("leaving on error", STRM_EV_STRM_ANA|STRM_EV_STRM_ERR, s);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001168 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001169}
1170
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001171/* This stream analyser works on a request. It applies all use-server rules on
1172 * it then returns 1. The data must already be present in the buffer otherwise
1173 * they won't match. It always returns 1.
1174 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001175static int process_server_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001176{
1177 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001178 struct session *sess = s->sess;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001179 struct server_rule *rule;
1180
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001181 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001182
Willy Tarreaue7dff022015-04-03 01:14:29 +02001183 if (!(s->flags & SF_ASSIGNED)) {
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001184 list_for_each_entry(rule, &px->server_rules, list) {
1185 int ret;
1186
Willy Tarreau192252e2015-04-04 01:47:55 +02001187 ret = acl_exec_cond(rule->cond, s->be, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001188 ret = acl_pass(ret);
1189 if (rule->cond->pol == ACL_COND_UNLESS)
1190 ret = !ret;
1191
1192 if (ret) {
Jerome Magnin824186b2020-03-29 09:37:12 +02001193 struct server *srv;
1194
1195 if (rule->dynamic) {
1196 struct buffer *tmp = get_trash_chunk();
1197
1198 if (!build_logline(s, tmp->area, tmp->size, &rule->expr))
1199 break;
1200
1201 srv = findserver(s->be, tmp->area);
1202 if (!srv)
1203 break;
1204 }
1205 else
1206 srv = rule->srv.ptr;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001207
Emeric Brun52a91d32017-08-31 14:41:55 +02001208 if ((srv->cur_state != SRV_ST_STOPPED) ||
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001209 (px->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +02001210 (s->flags & SF_FORCE_PRST)) {
1211 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001212 s->target = &srv->obj_type;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001213 break;
1214 }
1215 /* if the server is not UP, let's go on with next rules
1216 * just in case another one is suited.
1217 */
1218 }
1219 }
1220 }
1221
1222 req->analysers &= ~an_bit;
1223 req->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001224 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001225 return 1;
1226}
1227
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001228static inline void sticking_rule_find_target(struct stream *s,
1229 struct stktable *t, struct stksess *ts)
1230{
1231 struct proxy *px = s->be;
1232 struct eb32_node *node;
1233 struct dict_entry *de;
1234 void *ptr;
1235 struct server *srv;
1236
1237 /* Look for the server name previously stored in <t> stick-table */
1238 HA_RWLOCK_RDLOCK(STK_SESS_LOCK, &ts->lock);
Thayne McCombs92149f92020-11-20 01:28:26 -07001239 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_KEY);
1240 de = stktable_data_cast(ptr, server_key);
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001241 HA_RWLOCK_RDUNLOCK(STK_SESS_LOCK, &ts->lock);
1242
1243 if (de) {
Thayne McCombs92149f92020-11-20 01:28:26 -07001244 struct ebpt_node *node;
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001245
Thayne McCombs92149f92020-11-20 01:28:26 -07001246 if (t->server_key_type == STKTABLE_SRV_NAME) {
1247 node = ebis_lookup(&px->conf.used_server_name, de->value.key);
1248 if (node) {
1249 srv = container_of(node, struct server, conf.name);
1250 goto found;
1251 }
1252 } else if (t->server_key_type == STKTABLE_SRV_ADDR) {
1253 HA_RWLOCK_RDLOCK(PROXY_LOCK, &px->lock);
1254 node = ebis_lookup(&px->used_server_addr, de->value.key);
1255 HA_RWLOCK_RDUNLOCK(PROXY_LOCK, &px->lock);
1256 if (node) {
1257 srv = container_of(node, struct server, addr_node);
1258 goto found;
1259 }
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001260 }
1261 }
1262
1263 /* Look for the server ID */
1264 HA_RWLOCK_RDLOCK(STK_SESS_LOCK, &ts->lock);
1265 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_ID);
1266 node = eb32_lookup(&px->conf.used_server_id, stktable_data_cast(ptr, server_id));
1267 HA_RWLOCK_RDUNLOCK(STK_SESS_LOCK, &ts->lock);
1268
1269 if (!node)
1270 return;
1271
1272 srv = container_of(node, struct server, conf.id);
1273 found:
1274 if ((srv->cur_state != SRV_ST_STOPPED) ||
1275 (px->options & PR_O_PERSIST) || (s->flags & SF_FORCE_PRST)) {
1276 s->flags |= SF_DIRECT | SF_ASSIGNED;
1277 s->target = &srv->obj_type;
1278 }
1279}
1280
Emeric Brun1d33b292010-01-04 15:47:17 +01001281/* This stream analyser works on a request. It applies all sticking rules on
1282 * it then returns 1. The data must already be present in the buffer otherwise
1283 * they won't match. It always returns 1.
1284 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001285static int process_sticking_rules(struct stream *s, struct channel *req, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001286{
1287 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001288 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001289 struct sticking_rule *rule;
1290
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001291 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001292
1293 list_for_each_entry(rule, &px->sticking_rules, list) {
1294 int ret = 1 ;
1295 int i;
1296
Willy Tarreau9667a802013-12-09 12:52:13 +01001297 /* Only the first stick store-request of each table is applied
1298 * and other ones are ignored. The purpose is to allow complex
1299 * configurations which look for multiple entries by decreasing
1300 * order of precision and to stop at the first which matches.
1301 * An example could be a store of the IP address from an HTTP
1302 * header first, then from the source if not found.
1303 */
Jerome Magninbee00ad2020-01-16 17:37:21 +01001304 if (rule->flags & STK_IS_STORE) {
1305 for (i = 0; i < s->store_count; i++) {
1306 if (rule->table.t == s->store[i].table)
1307 break;
1308 }
Emeric Brun1d33b292010-01-04 15:47:17 +01001309
Jerome Magninbee00ad2020-01-16 17:37:21 +01001310 if (i != s->store_count)
1311 continue;
1312 }
Emeric Brun1d33b292010-01-04 15:47:17 +01001313
1314 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001315 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001316 ret = acl_pass(ret);
1317 if (rule->cond->pol == ACL_COND_UNLESS)
1318 ret = !ret;
1319 }
1320
1321 if (ret) {
1322 struct stktable_key *key;
1323
Willy Tarreau192252e2015-04-04 01:47:55 +02001324 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 +01001325 if (!key)
1326 continue;
1327
1328 if (rule->flags & STK_IS_MATCH) {
1329 struct stksess *ts;
1330
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001331 if ((ts = stktable_lookup_key(rule->table.t, key)) != NULL) {
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001332 if (!(s->flags & SF_ASSIGNED))
1333 sticking_rule_find_target(s, rule->table.t, ts);
Emeric Brun819fc6f2017-06-13 19:37:32 +02001334 stktable_touch_local(rule->table.t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001335 }
1336 }
1337 if (rule->flags & STK_IS_STORE) {
1338 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
1339 struct stksess *ts;
1340
1341 ts = stksess_new(rule->table.t, key);
1342 if (ts) {
1343 s->store[s->store_count].table = rule->table.t;
1344 s->store[s->store_count++].ts = ts;
1345 }
1346 }
1347 }
1348 }
1349 }
1350
1351 req->analysers &= ~an_bit;
1352 req->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001353 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001354 return 1;
1355}
1356
1357/* This stream analyser works on a response. It applies all store rules on it
1358 * then returns 1. The data must already be present in the buffer otherwise
1359 * they won't match. It always returns 1.
1360 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001361static int process_store_rules(struct stream *s, struct channel *rep, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001362{
1363 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001364 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001365 struct sticking_rule *rule;
1366 int i;
Willy Tarreau9667a802013-12-09 12:52:13 +01001367 int nbreq = s->store_count;
Emeric Brun1d33b292010-01-04 15:47:17 +01001368
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001369 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001370
1371 list_for_each_entry(rule, &px->storersp_rules, list) {
1372 int ret = 1 ;
Emeric Brun1d33b292010-01-04 15:47:17 +01001373
Willy Tarreau9667a802013-12-09 12:52:13 +01001374 /* Only the first stick store-response of each table is applied
1375 * and other ones are ignored. The purpose is to allow complex
1376 * configurations which look for multiple entries by decreasing
1377 * order of precision and to stop at the first which matches.
1378 * An example could be a store of a set-cookie value, with a
1379 * fallback to a parameter found in a 302 redirect.
1380 *
1381 * The store-response rules are not allowed to override the
1382 * store-request rules for the same table, but they may coexist.
1383 * Thus we can have up to one store-request entry and one store-
1384 * response entry for the same table at any time.
1385 */
1386 for (i = nbreq; i < s->store_count; i++) {
1387 if (rule->table.t == s->store[i].table)
1388 break;
1389 }
1390
1391 /* skip existing entries for this table */
1392 if (i < s->store_count)
1393 continue;
1394
Emeric Brun1d33b292010-01-04 15:47:17 +01001395 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001396 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_RES|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001397 ret = acl_pass(ret);
1398 if (rule->cond->pol == ACL_COND_UNLESS)
1399 ret = !ret;
1400 }
1401
1402 if (ret) {
1403 struct stktable_key *key;
1404
Willy Tarreau192252e2015-04-04 01:47:55 +02001405 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 +01001406 if (!key)
1407 continue;
1408
Willy Tarreau37e340c2013-12-06 23:05:21 +01001409 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001410 struct stksess *ts;
1411
1412 ts = stksess_new(rule->table.t, key);
1413 if (ts) {
1414 s->store[s->store_count].table = rule->table.t;
Emeric Brun1d33b292010-01-04 15:47:17 +01001415 s->store[s->store_count++].ts = ts;
1416 }
1417 }
1418 }
1419 }
1420
1421 /* process store request and store response */
1422 for (i = 0; i < s->store_count; i++) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001423 struct stksess *ts;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001424 void *ptr;
Thayne McCombs92149f92020-11-20 01:28:26 -07001425 char *key;
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001426 struct dict_entry *de;
Thayne McCombs92149f92020-11-20 01:28:26 -07001427 struct stktable *t = s->store[i].table;
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001428
Willy Tarreauc93cd162014-05-13 15:54:22 +02001429 if (objt_server(s->target) && objt_server(s->target)->flags & SRV_F_NON_STICK) {
Simon Hormanfa461682011-06-25 09:39:49 +09001430 stksess_free(s->store[i].table, s->store[i].ts);
1431 s->store[i].ts = NULL;
1432 continue;
1433 }
1434
Thayne McCombs92149f92020-11-20 01:28:26 -07001435 ts = stktable_set_entry(t, s->store[i].ts);
Emeric Brun819fc6f2017-06-13 19:37:32 +02001436 if (ts != s->store[i].ts) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001437 /* the entry already existed, we can free ours */
Thayne McCombs92149f92020-11-20 01:28:26 -07001438 stksess_free(t, s->store[i].ts);
Emeric Brun1d33b292010-01-04 15:47:17 +01001439 }
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001440 s->store[i].ts = NULL;
Emeric Brun819fc6f2017-06-13 19:37:32 +02001441
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001442 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Thayne McCombs92149f92020-11-20 01:28:26 -07001443 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_ID);
Willy Tarreaub8d42d02018-09-20 11:11:15 +02001444 stktable_data_cast(ptr, server_id) = __objt_server(s->target)->puid;
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001445 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001446
Thayne McCombs92149f92020-11-20 01:28:26 -07001447 if (t->server_key_type == STKTABLE_SRV_NAME)
1448 key = __objt_server(s->target)->id;
1449 else if (t->server_key_type == STKTABLE_SRV_ADDR)
1450 key = __objt_server(s->target)->addr_node.key;
1451 else
1452 continue;
1453
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001454 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Thayne McCombs92149f92020-11-20 01:28:26 -07001455 de = dict_insert(&server_key_dict, key);
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001456 if (de) {
Thayne McCombs92149f92020-11-20 01:28:26 -07001457 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_KEY);
1458 stktable_data_cast(ptr, server_key) = de;
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001459 }
1460 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
1461
Thayne McCombs92149f92020-11-20 01:28:26 -07001462 stktable_touch_local(t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001463 }
Willy Tarreau2a164ee2010-06-18 09:57:45 +02001464 s->store_count = 0; /* everything is stored */
Emeric Brun1d33b292010-01-04 15:47:17 +01001465
1466 rep->analysers &= ~an_bit;
1467 rep->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001468
1469 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001470 return 1;
1471}
1472
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001473/* This macro is very specific to the function below. See the comments in
Willy Tarreau87b09662015-04-03 00:22:06 +02001474 * process_stream() below to understand the logic and the tests.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001475 */
1476#define UPDATE_ANALYSERS(real, list, back, flag) { \
1477 list = (((list) & ~(flag)) | ~(back)) & (real); \
1478 back = real; \
1479 if (!(list)) \
1480 break; \
1481 if (((list) ^ ((list) & ((list) - 1))) < (flag)) \
1482 continue; \
1483}
1484
Christopher Fauleta9215b72016-05-11 17:06:28 +02001485/* These 2 following macros call an analayzer for the specified channel if the
1486 * right flag is set. The first one is used for "filterable" analyzers. If a
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001487 * stream has some registered filters, pre and post analyaze callbacks are
Christopher Faulet0184ea72017-01-05 14:06:34 +01001488 * called. The second are used for other analyzers (AN_REQ/RES_FLT_* and
Christopher Fauleta9215b72016-05-11 17:06:28 +02001489 * AN_REQ/RES_HTTP_XFER_BODY) */
1490#define FLT_ANALYZE(strm, chn, fun, list, back, flag, ...) \
1491 { \
1492 if ((list) & (flag)) { \
1493 if (HAS_FILTERS(strm)) { \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001494 if (!flt_pre_analyze((strm), (chn), (flag))) \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001495 break; \
1496 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1497 break; \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001498 if (!flt_post_analyze((strm), (chn), (flag))) \
1499 break; \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001500 } \
1501 else { \
1502 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1503 break; \
1504 } \
1505 UPDATE_ANALYSERS((chn)->analysers, (list), \
1506 (back), (flag)); \
1507 } \
1508 }
1509
1510#define ANALYZE(strm, chn, fun, list, back, flag, ...) \
1511 { \
1512 if ((list) & (flag)) { \
1513 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1514 break; \
1515 UPDATE_ANALYSERS((chn)->analysers, (list), \
1516 (back), (flag)); \
1517 } \
1518 }
1519
Willy Tarreau87b09662015-04-03 00:22:06 +02001520/* Processes the client, server, request and response jobs of a stream task,
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001521 * then puts it back to the wait queue in a clean state, or cleans up its
1522 * resources if it must be deleted. Returns in <next> the date the task wants
1523 * to be woken up, or TICK_ETERNITY. In order not to call all functions for
1524 * nothing too many times, the request and response buffers flags are monitored
1525 * and each function is called only if at least another function has changed at
1526 * least one flag it is interested in.
1527 */
Willy Tarreau144f84a2021-03-02 16:09:26 +01001528struct task *process_stream(struct task *t, void *context, unsigned int state)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001529{
Willy Tarreau827aee92011-03-10 16:55:02 +01001530 struct server *srv;
Olivier Houchard9f6af332018-05-25 14:04:04 +02001531 struct stream *s = context;
Willy Tarreaufb0afa72015-04-03 14:46:27 +02001532 struct session *sess = s->sess;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001533 unsigned int rqf_last, rpf_last;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001534 unsigned int rq_prod_last, rq_cons_last;
1535 unsigned int rp_cons_last, rp_prod_last;
Willy Tarreau576507f2010-01-07 00:09:04 +01001536 unsigned int req_ana_back;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001537 struct channel *req, *res;
1538 struct stream_interface *si_f, *si_b;
Willy Tarreau3d07a162019-04-25 19:15:20 +02001539 unsigned int rate;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001540
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001541 DBG_TRACE_ENTER(STRM_EV_STRM_PROC, s);
1542
Willy Tarreau7af4fa92020-06-17 20:49:49 +02001543 activity[tid].stream_calls++;
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01001544
Willy Tarreau8f128b42014-11-28 15:07:47 +01001545 req = &s->req;
1546 res = &s->res;
1547
1548 si_f = &s->si[0];
1549 si_b = &s->si[1];
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001550
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001551 /* First, attempt to receive pending data from I/O layers */
Willy Tarreauade64782018-11-17 19:51:07 +01001552 si_sync_recv(si_f);
1553 si_sync_recv(si_b);
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001554
Willy Tarreau3d07a162019-04-25 19:15:20 +02001555 rate = update_freq_ctr(&s->call_rate, 1);
1556 if (rate >= 100000 && s->call_rate.prev_ctr) { // make sure to wait at least a full second
1557 stream_dump_and_crash(&s->obj_type, read_freq_ctr(&s->call_rate));
1558 }
Olivier Houchardc2aa7112018-09-11 18:27:21 +02001559
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001560 /* this data may be no longer valid, clear it */
Willy Tarreaueee5b512015-04-03 23:46:31 +02001561 if (s->txn)
1562 memset(&s->txn->auth, 0, sizeof(s->txn->auth));
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001563
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02001564 /* This flag must explicitly be set every time */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001565 req->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
1566 res->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001567
1568 /* Keep a copy of req/rep flags so that we can detect shutdowns */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001569 rqf_last = req->flags & ~CF_MASK_ANALYSER;
1570 rpf_last = res->flags & ~CF_MASK_ANALYSER;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001571
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001572 /* we don't want the stream interface functions to recursively wake us up */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001573 si_f->flags |= SI_FL_DONT_WAKE;
1574 si_b->flags |= SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001575
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001576 /* update pending events */
Olivier Houchard9f6af332018-05-25 14:04:04 +02001577 s->pending_events |= (state & TASK_WOKEN_ANY);
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001578
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001579 /* 1a: Check for low level timeouts if needed. We just set a flag on
1580 * stream interfaces when their timeouts have expired.
1581 */
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001582 if (unlikely(s->pending_events & TASK_WOKEN_TIMER)) {
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001583 si_check_timeouts(si_f);
1584 si_check_timeouts(si_b);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001585
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001586 /* check channel timeouts, and close the corresponding stream interfaces
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001587 * for future reads or writes. Note: this will also concern upper layers
1588 * but we do not touch any other flag. We must be careful and correctly
1589 * detect state changes when calling them.
1590 */
1591
Willy Tarreau8f128b42014-11-28 15:07:47 +01001592 channel_check_timeouts(req);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001593
Willy Tarreau8f128b42014-11-28 15:07:47 +01001594 if (unlikely((req->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1595 si_b->flags |= SI_FL_NOLINGER;
1596 si_shutw(si_b);
Willy Tarreau14641402009-12-29 14:49:56 +01001597 }
1598
Willy Tarreau8f128b42014-11-28 15:07:47 +01001599 if (unlikely((req->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1600 if (si_f->flags & SI_FL_NOHALF)
1601 si_f->flags |= SI_FL_NOLINGER;
1602 si_shutr(si_f);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001603 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001604
Willy Tarreau8f128b42014-11-28 15:07:47 +01001605 channel_check_timeouts(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001606
Willy Tarreau8f128b42014-11-28 15:07:47 +01001607 if (unlikely((res->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1608 si_f->flags |= SI_FL_NOLINGER;
1609 si_shutw(si_f);
Willy Tarreau14641402009-12-29 14:49:56 +01001610 }
1611
Willy Tarreau8f128b42014-11-28 15:07:47 +01001612 if (unlikely((res->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1613 if (si_b->flags & SI_FL_NOHALF)
1614 si_b->flags |= SI_FL_NOLINGER;
1615 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001616 }
Willy Tarreau798f4322012-11-08 14:49:17 +01001617
Christopher Fauleta00d8172016-11-10 14:58:05 +01001618 if (HAS_FILTERS(s))
1619 flt_stream_check_timeouts(s);
1620
Willy Tarreau798f4322012-11-08 14:49:17 +01001621 /* Once in a while we're woken up because the task expires. But
1622 * this does not necessarily mean that a timeout has been reached.
Willy Tarreau87b09662015-04-03 00:22:06 +02001623 * So let's not run a whole stream processing if only an expiration
Willy Tarreau798f4322012-11-08 14:49:17 +01001624 * timeout needs to be refreshed.
1625 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001626 if (!((req->flags | res->flags) &
Willy Tarreau798f4322012-11-08 14:49:17 +01001627 (CF_SHUTR|CF_READ_ACTIVITY|CF_READ_TIMEOUT|CF_SHUTW|
Willy Tarreauede3d882018-10-24 17:17:56 +02001628 CF_WRITE_ACTIVITY|CF_WRITE_TIMEOUT|CF_ANA_TIMEOUT)) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01001629 !((si_f->flags | si_b->flags) & (SI_FL_EXP|SI_FL_ERR)) &&
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001630 ((s->pending_events & TASK_WOKEN_ANY) == TASK_WOKEN_TIMER)) {
Willy Tarreau5fb04712016-05-04 10:18:37 +02001631 si_f->flags &= ~SI_FL_DONT_WAKE;
1632 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau798f4322012-11-08 14:49:17 +01001633 goto update_exp_and_leave;
Willy Tarreau5fb04712016-05-04 10:18:37 +02001634 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001635 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001636
Willy Tarreau829bd472019-06-06 09:17:23 +02001637 resync_stream_interface:
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001638 /* below we may emit error messages so we have to ensure that we have
1639 * our buffers properly allocated.
1640 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001641 if (!stream_alloc_work_buffer(s)) {
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001642 /* No buffer available, we've been subscribed to the list of
1643 * buffer waiters, let's wait for our turn.
1644 */
Willy Tarreau5fb04712016-05-04 10:18:37 +02001645 si_f->flags &= ~SI_FL_DONT_WAKE;
1646 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001647 goto update_exp_and_leave;
1648 }
1649
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001650 /* 1b: check for low-level errors reported at the stream interface.
1651 * First we check if it's a retryable error (in which case we don't
1652 * want to tell the buffer). Otherwise we report the error one level
1653 * upper by setting flags into the buffers. Note that the side towards
1654 * the client cannot have connect (hence retryable) errors. Also, the
1655 * connection setup code must be able to deal with any type of abort.
1656 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001657 srv = objt_server(s->target);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001658 if (unlikely(si_f->flags & SI_FL_ERR)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001659 if (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001660 si_shutr(si_f);
1661 si_shutw(si_f);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001662 si_report_error(si_f);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001663 if (!(req->analysers) && !(res->analysers)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001664 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1665 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001666 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001667 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001668 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001669 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001670 if (!(s->flags & SF_ERR_MASK))
1671 s->flags |= SF_ERR_CLICL;
1672 if (!(s->flags & SF_FINST_MASK))
1673 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001674 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001675 }
1676 }
1677
Willy Tarreau8f128b42014-11-28 15:07:47 +01001678 if (unlikely(si_b->flags & SI_FL_ERR)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001679 if (si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001680 si_shutr(si_b);
1681 si_shutw(si_b);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001682 si_report_error(si_b);
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001683 _HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001684 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001685 _HA_ATOMIC_ADD(&srv->counters.failed_resp, 1);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001686 if (!(req->analysers) && !(res->analysers)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001687 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1688 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001689 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001690 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001691 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001692 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001693 if (!(s->flags & SF_ERR_MASK))
1694 s->flags |= SF_ERR_SRVCL;
1695 if (!(s->flags & SF_FINST_MASK))
1696 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001697 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001698 }
1699 /* note: maybe we should process connection errors here ? */
1700 }
1701
Willy Tarreau4f283fa2019-06-05 14:34:03 +02001702 if (si_state_in(si_b->state, SI_SB_CON|SI_SB_RDY)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001703 /* we were trying to establish a connection on the server side,
1704 * maybe it succeeded, maybe it failed, maybe we timed out, ...
1705 */
Willy Tarreaud66ed882019-06-05 18:02:04 +02001706 if (si_b->state == SI_ST_RDY)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001707 back_handle_st_rdy(s);
Willy Tarreaud66ed882019-06-05 18:02:04 +02001708 else if (si_b->state == SI_ST_CON)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001709 back_handle_st_con(s);
Willy Tarreaud66ed882019-06-05 18:02:04 +02001710
1711 if (si_b->state == SI_ST_CER)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001712 back_handle_st_cer(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001713 else if (si_b->state == SI_ST_EST)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001714 back_establish(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001715
1716 /* state is now one of SI_ST_CON (still in progress), SI_ST_EST
1717 * (established), SI_ST_DIS (abort), SI_ST_CLO (last error),
1718 * SI_ST_ASS/SI_ST_TAR/SI_ST_REQ for retryable errors.
1719 */
1720 }
1721
Willy Tarreau8f128b42014-11-28 15:07:47 +01001722 rq_prod_last = si_f->state;
1723 rq_cons_last = si_b->state;
1724 rp_cons_last = si_f->state;
1725 rp_prod_last = si_b->state;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001726
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001727 /* Check for connection closure */
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001728 DBG_TRACE_POINT(STRM_EV_STRM_PROC, s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001729
1730 /* nothing special to be done on client side */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001731 if (unlikely(si_f->state == SI_ST_DIS))
1732 si_f->state = SI_ST_CLO;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001733
1734 /* When a server-side connection is released, we have to count it and
1735 * check for pending connections on this server.
1736 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001737 if (unlikely(si_b->state == SI_ST_DIS)) {
1738 si_b->state = SI_ST_CLO;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001739 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01001740 if (srv) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001741 if (s->flags & SF_CURR_SESS) {
1742 s->flags &= ~SF_CURR_SESS;
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001743 _HA_ATOMIC_SUB(&srv->cur_sess, 1);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001744 }
1745 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001746 if (may_dequeue_tasks(srv, s->be))
1747 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001748 }
1749 }
1750
1751 /*
1752 * Note: of the transient states (REQ, CER, DIS), only REQ may remain
1753 * at this point.
1754 */
1755
Willy Tarreau0be0ef92009-03-08 19:20:25 +01001756 resync_request:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001757 /* Analyse request */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001758 if (((req->flags & ~rqf_last) & CF_MASK_ANALYSER) ||
1759 ((req->flags ^ rqf_last) & CF_MASK_STATIC) ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01001760 (req->analysers && (req->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01001761 si_f->state != rq_prod_last ||
1762 si_b->state != rq_cons_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001763 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001764 unsigned int flags = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001765
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001766 if (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001767 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001768 unsigned int ana_list;
1769 unsigned int ana_back;
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001770
Willy Tarreau90deb182010-01-07 00:20:41 +01001771 /* it's up to the analysers to stop new connections,
1772 * disable reading or closing. Note: if an analyser
1773 * disables any of these bits, it is responsible for
1774 * enabling them again when it disables itself, so
1775 * that other analysers are called in similar conditions.
1776 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001777 channel_auto_read(req);
1778 channel_auto_connect(req);
1779 channel_auto_close(req);
Willy Tarreauedcf6682008-11-30 23:15:34 +01001780
1781 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01001782 * req->analysers, following the bit order from LSB
Willy Tarreauedcf6682008-11-30 23:15:34 +01001783 * to MSB. The analysers must remove themselves from
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001784 * the list when not needed. Any analyser may return 0
1785 * to break out of the loop, either because of missing
1786 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02001787 * kill the stream. We loop at least once through each
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001788 * analyser, and we may loop again if other analysers
1789 * are added in the middle.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001790 *
1791 * We build a list of analysers to run. We evaluate all
1792 * of these analysers in the order of the lower bit to
1793 * the higher bit. This ordering is very important.
1794 * An analyser will often add/remove other analysers,
1795 * including itself. Any changes to itself have no effect
1796 * on the loop. If it removes any other analysers, we
1797 * want those analysers not to be called anymore during
1798 * this loop. If it adds an analyser that is located
1799 * after itself, we want it to be scheduled for being
1800 * processed during the loop. If it adds an analyser
1801 * which is located before it, we want it to switch to
1802 * it immediately, even if it has already been called
1803 * once but removed since.
1804 *
1805 * In order to achieve this, we compare the analyser
1806 * list after the call with a copy of it before the
1807 * call. The work list is fed with analyser bits that
1808 * appeared during the call. Then we compare previous
1809 * work list with the new one, and check the bits that
1810 * appeared. If the lowest of these bits is lower than
1811 * the current bit, it means we have enabled a previous
1812 * analyser and must immediately loop again.
Willy Tarreauedcf6682008-11-30 23:15:34 +01001813 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001814
Willy Tarreau8f128b42014-11-28 15:07:47 +01001815 ana_list = ana_back = req->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001816 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001817 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01001818 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_FE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001819 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_FE);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001820 FLT_ANALYZE(s, req, http_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_HTTP);
1821 FLT_ANALYZE(s, req, http_wait_for_request_body, ana_list, ana_back, AN_REQ_HTTP_BODY);
1822 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 +02001823 FLT_ANALYZE(s, req, process_switching_rules, ana_list, ana_back, AN_REQ_SWITCHING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001824 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001825 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_BE);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001826 FLT_ANALYZE(s, req, http_process_req_common, ana_list, ana_back, AN_REQ_HTTP_PROCESS_BE, s->be);
1827 FLT_ANALYZE(s, req, http_process_tarpit, ana_list, ana_back, AN_REQ_HTTP_TARPIT);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001828 FLT_ANALYZE(s, req, process_server_rules, ana_list, ana_back, AN_REQ_SRV_RULES);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001829 FLT_ANALYZE(s, req, http_process_request, ana_list, ana_back, AN_REQ_HTTP_INNER);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001830 FLT_ANALYZE(s, req, tcp_persist_rdp_cookie, ana_list, ana_back, AN_REQ_PRST_RDP_COOKIE);
1831 FLT_ANALYZE(s, req, process_sticking_rules, ana_list, ana_back, AN_REQ_STICKING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001832 ANALYZE (s, req, flt_analyze_http_headers, ana_list, ana_back, AN_REQ_FLT_HTTP_HDRS);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001833 ANALYZE (s, req, http_request_forward_body, ana_list, ana_back, AN_REQ_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02001834 ANALYZE (s, req, pcli_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001835 ANALYZE (s, req, flt_xfer_data, ana_list, ana_back, AN_REQ_FLT_XFER_DATA);
1836 ANALYZE (s, req, flt_end_analyze, ana_list, ana_back, AN_REQ_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01001837 break;
1838 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001839 }
Willy Tarreau84455332009-03-15 22:34:05 +01001840
Willy Tarreau8f128b42014-11-28 15:07:47 +01001841 rq_prod_last = si_f->state;
1842 rq_cons_last = si_b->state;
1843 req->flags &= ~CF_WAKE_ONCE;
1844 rqf_last = req->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001845
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02001846 if ((req->flags ^ flags) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001847 goto resync_request;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001848 }
1849
Willy Tarreau576507f2010-01-07 00:09:04 +01001850 /* we'll monitor the request analysers while parsing the response,
1851 * because some response analysers may indirectly enable new request
1852 * analysers (eg: HTTP keep-alive).
1853 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001854 req_ana_back = req->analysers;
Willy Tarreau576507f2010-01-07 00:09:04 +01001855
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001856 resync_response:
1857 /* Analyse response */
1858
Willy Tarreau8f128b42014-11-28 15:07:47 +01001859 if (((res->flags & ~rpf_last) & CF_MASK_ANALYSER) ||
1860 (res->flags ^ rpf_last) & CF_MASK_STATIC ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01001861 (res->analysers && (res->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01001862 si_f->state != rp_cons_last ||
1863 si_b->state != rp_prod_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001864 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001865 unsigned int flags = res->flags;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001866
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001867 if (si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001868 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001869 unsigned int ana_list;
1870 unsigned int ana_back;
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001871
Willy Tarreau90deb182010-01-07 00:20:41 +01001872 /* it's up to the analysers to stop disable reading or
1873 * closing. Note: if an analyser disables any of these
1874 * bits, it is responsible for enabling them again when
1875 * it disables itself, so that other analysers are called
1876 * in similar conditions.
1877 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001878 channel_auto_read(res);
1879 channel_auto_close(res);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001880
1881 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01001882 * res->analysers, following the bit order from LSB
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001883 * to MSB. The analysers must remove themselves from
1884 * the list when not needed. Any analyser may return 0
1885 * to break out of the loop, either because of missing
1886 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02001887 * kill the stream. We loop at least once through each
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001888 * analyser, and we may loop again if other analysers
1889 * are added in the middle.
1890 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001891
Willy Tarreau8f128b42014-11-28 15:07:47 +01001892 ana_list = ana_back = res->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001893 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001894 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01001895 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_FE);
1896 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001897 FLT_ANALYZE(s, res, tcp_inspect_response, ana_list, ana_back, AN_RES_INSPECT);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001898 FLT_ANALYZE(s, res, http_wait_for_response, ana_list, ana_back, AN_RES_WAIT_HTTP);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001899 FLT_ANALYZE(s, res, process_store_rules, ana_list, ana_back, AN_RES_STORE_RULES);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001900 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 +01001901 ANALYZE (s, res, flt_analyze_http_headers, ana_list, ana_back, AN_RES_FLT_HTTP_HDRS);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001902 ANALYZE (s, res, http_response_forward_body, ana_list, ana_back, AN_RES_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02001903 ANALYZE (s, res, pcli_wait_for_response, ana_list, ana_back, AN_RES_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001904 ANALYZE (s, res, flt_xfer_data, ana_list, ana_back, AN_RES_FLT_XFER_DATA);
1905 ANALYZE (s, res, flt_end_analyze, ana_list, ana_back, AN_RES_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01001906 break;
1907 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001908 }
1909
Willy Tarreau8f128b42014-11-28 15:07:47 +01001910 rp_cons_last = si_f->state;
1911 rp_prod_last = si_b->state;
Christopher Fauletcdaea892017-07-06 15:49:30 +02001912 res->flags &= ~CF_WAKE_ONCE;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001913 rpf_last = res->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001914
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02001915 if ((res->flags ^ flags) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001916 goto resync_response;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001917 }
1918
Willy Tarreau576507f2010-01-07 00:09:04 +01001919 /* maybe someone has added some request analysers, so we must check and loop */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001920 if (req->analysers & ~req_ana_back)
Willy Tarreau576507f2010-01-07 00:09:04 +01001921 goto resync_request;
1922
Willy Tarreau8f128b42014-11-28 15:07:47 +01001923 if ((req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0499e352010-12-17 07:13:42 +01001924 goto resync_request;
1925
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001926 /* FIXME: here we should call protocol handlers which rely on
1927 * both buffers.
1928 */
1929
1930
1931 /*
Willy Tarreau87b09662015-04-03 00:22:06 +02001932 * Now we propagate unhandled errors to the stream. Normally
Willy Tarreauae526782010-03-04 20:34:23 +01001933 * we're just in a data phase here since it means we have not
1934 * seen any analyser who could set an error status.
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001935 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001936 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001937 if (unlikely(!(s->flags & SF_ERR_MASK))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001938 if (req->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001939 /* Report it if the client got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001940 req->analysers = 0;
1941 if (req->flags & CF_READ_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001942 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1943 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001944 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001945 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001946 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001947 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001948 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01001949 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001950 else if (req->flags & CF_READ_TIMEOUT) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001951 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1952 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001953 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001954 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001955 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001956 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001957 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01001958 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001959 else if (req->flags & CF_WRITE_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001960 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1961 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001962 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001963 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001964 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001965 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001966 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01001967 }
1968 else {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001969 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1970 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001971 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001972 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001973 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001974 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001975 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01001976 }
Willy Tarreau84455332009-03-15 22:34:05 +01001977 sess_set_term_flags(s);
Christopher Faulet5e1a9d72019-04-23 17:34:22 +02001978
1979 /* Abort the request if a client error occurred while
1980 * the backend stream-interface is in the SI_ST_INI
1981 * state. It is switched into the SI_ST_CLO state and
1982 * the request channel is erased. */
1983 if (si_b->state == SI_ST_INI) {
1984 si_b->state = SI_ST_CLO;
1985 channel_abort(req);
1986 if (IS_HTX_STRM(s))
1987 channel_htx_erase(req, htxbuf(&req->buf));
1988 else
1989 channel_erase(req);
1990 }
Willy Tarreau84455332009-03-15 22:34:05 +01001991 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001992 else if (res->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001993 /* Report it if the server got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001994 res->analysers = 0;
1995 if (res->flags & CF_READ_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001996 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1997 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001998 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001999 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002000 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002001 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002002 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002003 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002004 else if (res->flags & CF_READ_TIMEOUT) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002005 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
2006 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01002007 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01002008 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002009 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002010 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002011 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002012 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002013 else if (res->flags & CF_WRITE_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002014 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
2015 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01002016 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01002017 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002018 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002019 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002020 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002021 }
2022 else {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002023 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
2024 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01002025 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01002026 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01002027 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002028 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002029 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01002030 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002031 sess_set_term_flags(s);
2032 }
Willy Tarreau84455332009-03-15 22:34:05 +01002033 }
2034
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002035 /*
2036 * Here we take care of forwarding unhandled data. This also includes
2037 * connection establishments and shutdown requests.
2038 */
2039
2040
Ilya Shipitsinb8888ab2021-01-06 21:20:16 +05002041 /* If no one is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002042 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002043 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002044 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002045 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02002046 if (unlikely((!req->analysers || (req->analysers == AN_REQ_FLT_END && !(req->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002047 !(req->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002048 (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002049 (req->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002050 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002051 * attached to it. If any data are left in, we'll permit them to
2052 * move.
2053 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002054 channel_auto_read(req);
2055 channel_auto_connect(req);
2056 channel_auto_close(req);
Willy Tarreau5bd8c372009-01-19 00:32:22 +01002057
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002058 if (IS_HTX_STRM(s)) {
2059 struct htx *htx = htxbuf(&req->buf);
2060
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002061 /* We'll let data flow between the producer (if still connected)
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002062 * to the consumer.
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002063 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002064 co_set_data(req, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002065 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002066 channel_htx_forward_forever(req, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002067 }
2068 else {
2069 /* We'll let data flow between the producer (if still connected)
2070 * to the consumer (which might possibly not be connected yet).
2071 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002072 c_adv(req, ci_data(req));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002073 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2074 channel_forward_forever(req);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002075 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002076 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002077
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002078 /* check if it is wise to enable kernel splicing to forward request data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002079 if (!(req->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2080 req->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002081 (global.tune.options & GTUNE_USE_SPLICE) &&
Christopher Faulet276c1e02019-11-05 16:49:23 +01002082 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->rcv_pipe &&
2083 __objt_cs(si_f->end)->conn->mux && __objt_cs(si_f->end)->conn->mux->rcv_pipe) &&
2084 (objt_cs(si_b->end) && __objt_cs(si_b->end)->conn->xprt && __objt_cs(si_b->end)->conn->xprt->snd_pipe &&
2085 __objt_cs(si_b->end)->conn->mux && __objt_cs(si_b->end)->conn->mux->snd_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002086 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002087 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_REQ) ||
2088 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002089 (req->flags & CF_STREAMER_FAST)))) {
2090 req->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002091 }
2092
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002093 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002094 rqf_last = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002095
Willy Tarreau520d95e2009-09-19 21:04:57 +02002096 /* it's possible that an upper layer has requested a connection setup or abort.
2097 * There are 2 situations where we decide to establish a new connection :
2098 * - there are data scheduled for emission in the buffer
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002099 * - the CF_AUTO_CONNECT flag is set (active connection)
Willy Tarreau520d95e2009-09-19 21:04:57 +02002100 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002101 if (si_b->state == SI_ST_INI) {
Christopher Faulet5e1a9d72019-04-23 17:34:22 +02002102 if (!(req->flags & CF_SHUTW)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002103 if ((req->flags & CF_AUTO_CONNECT) || !channel_is_empty(req)) {
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002104 /* If we have an appctx, there is no connect method, so we
2105 * immediately switch to the connected state, otherwise we
2106 * perform a connection request.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002107 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002108 si_b->state = SI_ST_REQ; /* new connection requested */
2109 si_b->conn_retries = s->be->conn_retries;
Willy Tarreau520d95e2009-09-19 21:04:57 +02002110 }
Willy Tarreau73201222009-08-16 18:27:24 +02002111 }
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002112 else {
Willy Tarreau0542c8b2017-11-24 15:01:10 +01002113 si_release_endpoint(si_b);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002114 si_b->state = SI_ST_CLO; /* shutw+ini = abort */
2115 channel_shutw_now(req); /* fix buffer flags upon abort */
2116 channel_shutr_now(res);
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002117 }
Willy Tarreau92795622009-03-06 12:51:23 +01002118 }
2119
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002120
2121 /* we may have a pending connection request, or a connection waiting
2122 * for completion.
2123 */
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002124 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 +02002125 /* prune the request variables and swap to the response variables. */
2126 if (s->vars_reqres.scope != SCOPE_RES) {
Jerome Magnin2f44e882019-11-09 18:00:47 +01002127 if (!LIST_ISEMPTY(&s->vars_reqres.head))
Willy Tarreaucda7f3f2018-10-28 13:44:36 +01002128 vars_prune(&s->vars_reqres, s->sess, s);
Jerome Magnin2f44e882019-11-09 18:00:47 +01002129 vars_init(&s->vars_reqres, SCOPE_RES);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +02002130 }
2131
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002132 do {
2133 /* nb: step 1 might switch from QUE to ASS, but we first want
2134 * to give a chance to step 2 to perform a redirect if needed.
2135 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002136 if (si_b->state != SI_ST_REQ)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002137 back_try_conn_req(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002138 if (si_b->state == SI_ST_REQ)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002139 back_handle_st_req(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002140
Willy Tarreauada4c582020-03-04 16:42:03 +01002141 /* get a chance to complete an immediate connection setup */
2142 if (si_b->state == SI_ST_RDY)
2143 goto resync_stream_interface;
2144
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +01002145 /* applets directly go to the ESTABLISHED state. Similarly,
2146 * servers experience the same fate when their connection
2147 * is reused.
2148 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002149 if (unlikely(si_b->state == SI_ST_EST))
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002150 back_establish(s);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01002151
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002152 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002153 if (si_b->state == SI_ST_ASS && srv && srv->rdr_len && (s->flags & SF_REDIRECTABLE))
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02002154 http_perform_server_redirect(s, si_b);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002155 } while (si_b->state == SI_ST_ASS);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002156 }
2157
Willy Tarreau829bd472019-06-06 09:17:23 +02002158 /* Let's see if we can send the pending request now */
2159 si_sync_send(si_b);
2160
2161 /*
2162 * Now forward all shutdown requests between both sides of the request buffer
2163 */
2164
2165 /* first, let's check if the request buffer needs to shutdown(write), which may
2166 * happen either because the input is closed or because we want to force a close
2167 * once the server has begun to respond. If a half-closed timeout is set, we adjust
2168 * the other side's timeout as well.
2169 */
2170 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
2171 (CF_AUTO_CLOSE|CF_SHUTR))) {
2172 channel_shutw_now(req);
2173 }
2174
2175 /* shutdown(write) pending */
2176 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2177 channel_is_empty(req))) {
2178 if (req->flags & CF_READ_ERROR)
2179 si_b->flags |= SI_FL_NOLINGER;
2180 si_shutw(si_b);
2181 }
2182
2183 /* shutdown(write) done on server side, we must stop the client too */
2184 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW &&
2185 !req->analysers))
2186 channel_shutr_now(req);
2187
2188 /* shutdown(read) pending */
2189 if (unlikely((req->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2190 if (si_f->flags & SI_FL_NOHALF)
2191 si_f->flags |= SI_FL_NOLINGER;
2192 si_shutr(si_f);
2193 }
2194
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002195 /* Benchmarks have shown that it's optimal to do a full resync now */
Willy Tarreau829bd472019-06-06 09:17:23 +02002196 if (si_f->state == SI_ST_DIS ||
2197 si_state_in(si_b->state, SI_SB_RDY|SI_SB_DIS) ||
2198 (si_f->flags & SI_FL_ERR && si_f->state != SI_ST_CLO) ||
2199 (si_b->flags & SI_FL_ERR && si_b->state != SI_ST_CLO))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002200 goto resync_stream_interface;
2201
Willy Tarreau815a9b22010-07-27 17:15:12 +02002202 /* otherwise we want to check if we need to resync the req buffer or not */
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02002203 if ((req->flags ^ rqf_last) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002204 goto resync_request;
2205
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002206 /* perform output updates to the response buffer */
Willy Tarreau84455332009-03-15 22:34:05 +01002207
Ilya Shipitsinb8888ab2021-01-06 21:20:16 +05002208 /* If no one is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002209 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002210 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002211 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002212 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02002213 if (unlikely((!res->analysers || (res->analysers == AN_RES_FLT_END && !(res->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002214 !(res->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002215 si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002216 (res->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002217 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002218 * attached to it. If any data are left in, we'll permit them to
2219 * move.
2220 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002221 channel_auto_read(res);
2222 channel_auto_close(res);
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002223
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002224 if (IS_HTX_STRM(s)) {
2225 struct htx *htx = htxbuf(&res->buf);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002226
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002227 /* We'll let data flow between the producer (if still connected)
2228 * to the consumer.
2229 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002230 co_set_data(res, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002231 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002232 channel_htx_forward_forever(res, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002233 }
2234 else {
2235 /* We'll let data flow between the producer (if still connected)
2236 * to the consumer.
2237 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002238 c_adv(res, ci_data(res));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002239 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2240 channel_forward_forever(res);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002241 }
Willy Tarreau42529c32015-07-09 18:38:57 +02002242
Willy Tarreauce887fd2012-05-12 12:50:00 +02002243 /* if we have no analyser anymore in any direction and have a
Willy Tarreau05cdd962014-05-10 14:30:07 +02002244 * tunnel timeout set, use it now. Note that we must respect
2245 * the half-closed timeouts as well.
Willy Tarreauce887fd2012-05-12 12:50:00 +02002246 */
Amaury Denoyellefb504432020-12-10 13:43:53 +01002247 if (!req->analysers && s->tunnel_timeout) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002248 req->rto = req->wto = res->rto = res->wto =
Amaury Denoyellefb504432020-12-10 13:43:53 +01002249 s->tunnel_timeout;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002250
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002251 if ((req->flags & CF_SHUTR) && tick_isset(sess->fe->timeout.clientfin))
2252 res->wto = sess->fe->timeout.clientfin;
Willy Tarreau8f128b42014-11-28 15:07:47 +01002253 if ((req->flags & CF_SHUTW) && tick_isset(s->be->timeout.serverfin))
2254 res->rto = s->be->timeout.serverfin;
2255 if ((res->flags & CF_SHUTR) && tick_isset(s->be->timeout.serverfin))
2256 req->wto = s->be->timeout.serverfin;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002257 if ((res->flags & CF_SHUTW) && tick_isset(sess->fe->timeout.clientfin))
2258 req->rto = sess->fe->timeout.clientfin;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002259
Willy Tarreau8f128b42014-11-28 15:07:47 +01002260 req->rex = tick_add(now_ms, req->rto);
2261 req->wex = tick_add(now_ms, req->wto);
2262 res->rex = tick_add(now_ms, res->rto);
2263 res->wex = tick_add(now_ms, res->wto);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002264 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002265 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002266
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002267 /* check if it is wise to enable kernel splicing to forward response data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002268 if (!(res->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2269 res->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002270 (global.tune.options & GTUNE_USE_SPLICE) &&
Christopher Faulet276c1e02019-11-05 16:49:23 +01002271 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->snd_pipe &&
2272 __objt_cs(si_f->end)->conn->mux && __objt_cs(si_f->end)->conn->mux->snd_pipe) &&
2273 (objt_cs(si_b->end) && __objt_cs(si_b->end)->conn->xprt && __objt_cs(si_b->end)->conn->xprt->rcv_pipe &&
2274 __objt_cs(si_b->end)->conn->mux && __objt_cs(si_b->end)->conn->mux->rcv_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002275 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002276 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_RTR) ||
2277 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002278 (res->flags & CF_STREAMER_FAST)))) {
2279 res->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002280 }
2281
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002282 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002283 rpf_last = res->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002284
Willy Tarreau829bd472019-06-06 09:17:23 +02002285 /* Let's see if we can send the pending response now */
2286 si_sync_send(si_f);
2287
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002288 /*
2289 * Now forward all shutdown requests between both sides of the buffer
2290 */
2291
2292 /*
2293 * FIXME: this is probably where we should produce error responses.
2294 */
2295
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002296 /* first, let's check if the response buffer needs to shutdown(write) */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002297 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau05cdd962014-05-10 14:30:07 +02002298 (CF_AUTO_CLOSE|CF_SHUTR))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002299 channel_shutw_now(res);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002300 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002301
2302 /* shutdown(write) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002303 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2304 channel_is_empty(res))) {
2305 si_shutw(si_f);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002306 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002307
2308 /* shutdown(write) done on the client side, we must stop the server too */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002309 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW) &&
2310 !res->analysers)
2311 channel_shutr_now(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002312
2313 /* shutdown(read) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002314 if (unlikely((res->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2315 if (si_b->flags & SI_FL_NOHALF)
2316 si_b->flags |= SI_FL_NOLINGER;
2317 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002318 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002319
Willy Tarreau829bd472019-06-06 09:17:23 +02002320 if (si_f->state == SI_ST_DIS ||
2321 si_state_in(si_b->state, SI_SB_RDY|SI_SB_DIS) ||
2322 (si_f->flags & SI_FL_ERR && si_f->state != SI_ST_CLO) ||
2323 (si_b->flags & SI_FL_ERR && si_b->state != SI_ST_CLO))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002324 goto resync_stream_interface;
2325
Willy Tarreau3c5c0662019-06-06 14:32:49 +02002326 if ((req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002327 goto resync_request;
2328
Willy Tarreau8f128b42014-11-28 15:07:47 +01002329 if ((res->flags ^ rpf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002330 goto resync_response;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002331
Willy Tarreau829bd472019-06-06 09:17:23 +02002332 if (((req->flags ^ rqf_last) | (res->flags ^ rpf_last)) & CF_MASK_ANALYSER)
2333 goto resync_request;
2334
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002335 /* we're interested in getting wakeups again */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002336 si_f->flags &= ~SI_FL_DONT_WAKE;
2337 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002338
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002339 /* This is needed only when debugging is enabled, to indicate
2340 * client-side or server-side close. Please note that in the unlikely
2341 * event where both sides would close at once, the sequence is reported
2342 * on the server side first.
2343 */
2344 if (unlikely((global.mode & MODE_DEBUG) &&
2345 (!(global.mode & MODE_QUIET) ||
2346 (global.mode & MODE_VERBOSE)))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002347 if (si_b->state == SI_ST_CLO &&
2348 si_b->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002349 chunk_printf(&trash, "%08x:%s.srvcls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002350 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002351 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2352 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01002353 DISGUISE(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002354 }
2355
Willy Tarreau8f128b42014-11-28 15:07:47 +01002356 if (si_f->state == SI_ST_CLO &&
2357 si_f->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002358 chunk_printf(&trash, "%08x:%s.clicls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002359 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002360 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2361 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01002362 DISGUISE(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002363 }
2364 }
2365
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002366 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 +02002367 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED) && !(s->flags & SF_IGNORE))
Willy Tarreau87b09662015-04-03 00:22:06 +02002368 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002369
Willy Tarreaud14844a2018-11-08 18:15:29 +01002370 si_update_both(si_f, si_b);
Olivier Houchard53216e72018-10-10 15:46:36 +02002371
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002372 /* Trick: if a request is being waiting for the server to respond,
2373 * and if we know the server can timeout, we don't want the timeout
2374 * to expire on the client side first, but we're still interested
2375 * in passing data from the client to the server (eg: POST). Thus,
2376 * we can cancel the client's request timeout if the server's
2377 * request timeout is set and the server has not yet sent a response.
2378 */
2379
Willy Tarreau8f128b42014-11-28 15:07:47 +01002380 if ((res->flags & (CF_AUTO_CLOSE|CF_SHUTR)) == 0 &&
2381 (tick_isset(req->wex) || tick_isset(res->rex))) {
2382 req->flags |= CF_READ_NOEXP;
2383 req->rex = TICK_ETERNITY;
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002384 }
2385
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002386 /* Reset pending events now */
2387 s->pending_events = 0;
2388
Willy Tarreau798f4322012-11-08 14:49:17 +01002389 update_exp_and_leave:
Willy Tarreau5fb04712016-05-04 10:18:37 +02002390 /* Note: please ensure that if you branch here you disable SI_FL_DONT_WAKE */
Christopher Fauleta00d8172016-11-10 14:58:05 +01002391 t->expire = tick_first((tick_is_expired(t->expire, now_ms) ? 0 : t->expire),
2392 tick_first(tick_first(req->rex, req->wex),
2393 tick_first(res->rex, res->wex)));
Willy Tarreaudef0d222016-11-08 22:03:00 +01002394 if (!req->analysers)
2395 req->analyse_exp = TICK_ETERNITY;
2396
2397 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED) &&
2398 (!tick_isset(req->analyse_exp) || tick_is_expired(req->analyse_exp, now_ms)))
2399 req->analyse_exp = tick_add(now_ms, 5000);
2400
2401 t->expire = tick_first(t->expire, req->analyse_exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002402
Willy Tarreau9a398be2017-11-10 17:14:23 +01002403 t->expire = tick_first(t->expire, res->analyse_exp);
2404
Willy Tarreau8f128b42014-11-28 15:07:47 +01002405 if (si_f->exp)
2406 t->expire = tick_first(t->expire, si_f->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002407
Willy Tarreau8f128b42014-11-28 15:07:47 +01002408 if (si_b->exp)
2409 t->expire = tick_first(t->expire, si_b->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002410
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002411 s->pending_events &= ~(TASK_WOKEN_TIMER | TASK_WOKEN_RES);
Willy Tarreau87b09662015-04-03 00:22:06 +02002412 stream_release_buffers(s);
Christopher Fauleteea8fc72019-11-05 16:18:10 +01002413
2414 DBG_TRACE_DEVEL("queuing", STRM_EV_STRM_PROC, s);
Willy Tarreau26c25062009-03-08 09:38:41 +01002415 return t; /* nothing more to do */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002416 }
2417
Christopher Fauleteea8fc72019-11-05 16:18:10 +01002418 DBG_TRACE_DEVEL("releasing", STRM_EV_STRM_PROC, s);
2419
Willy Tarreaue7dff022015-04-03 01:14:29 +02002420 if (s->flags & SF_BE_ASSIGNED)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002421 _HA_ATOMIC_SUB(&s->be->beconn, 1);
Willy Tarreau6f5e4b92017-09-15 09:07:56 +02002422
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002423 if (unlikely((global.mode & MODE_DEBUG) &&
2424 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)))) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002425 chunk_printf(&trash, "%08x:%s.closed[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002426 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002427 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2428 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01002429 DISGUISE(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002430 }
2431
Christopher Faulet341064e2021-01-21 17:10:44 +01002432 if (!(s->flags & SF_IGNORE)) {
2433 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
2434
Olivier Houchard4c18f942019-07-31 18:05:26 +02002435 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002436
Christopher Faulet341064e2021-01-21 17:10:44 +01002437 if (s->txn && s->txn->status) {
2438 int n;
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002439
Christopher Faulet341064e2021-01-21 17:10:44 +01002440 n = s->txn->status / 100;
2441 if (n < 1 || n > 5)
2442 n = 0;
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002443
Christopher Faulet341064e2021-01-21 17:10:44 +01002444 if (sess->fe->mode == PR_MODE_HTTP) {
2445 _HA_ATOMIC_ADD(&sess->fe->fe_counters.p.http.rsp[n], 1);
2446 }
2447 if ((s->flags & SF_BE_ASSIGNED) &&
2448 (s->be->mode == PR_MODE_HTTP)) {
2449 _HA_ATOMIC_ADD(&s->be->be_counters.p.http.rsp[n], 1);
2450 _HA_ATOMIC_ADD(&s->be->be_counters.p.http.cum_req, 1);
2451 }
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002452 }
Christopher Faulet341064e2021-01-21 17:10:44 +01002453
2454 /* let's do a final log if we need it */
2455 if (!LIST_ISEMPTY(&sess->fe->logformat) && s->logs.logwait &&
2456 !(s->flags & SF_MONITOR) &&
2457 (!(sess->fe->options & PR_O_NULLNOLOG) || req->total)) {
2458 /* we may need to know the position in the queue */
2459 pendconn_free(s);
2460 s->do_log(s);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002461 }
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002462
Christopher Faulet341064e2021-01-21 17:10:44 +01002463 /* update time stats for this stream */
2464 stream_update_time_stats(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002465 }
2466
2467 /* the task MUST not be in the run queue anymore */
Willy Tarreau87b09662015-04-03 00:22:06 +02002468 stream_free(s);
Olivier Houchard3f795f72019-04-17 22:51:06 +02002469 task_destroy(t);
Willy Tarreau26c25062009-03-08 09:38:41 +01002470 return NULL;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002471}
2472
Willy Tarreau87b09662015-04-03 00:22:06 +02002473/* Update the stream's backend and server time stats */
2474void stream_update_time_stats(struct stream *s)
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002475{
2476 int t_request;
2477 int t_queue;
2478 int t_connect;
2479 int t_data;
2480 int t_close;
2481 struct server *srv;
Marcin Deraneka8dbdf32020-05-15 20:02:40 +02002482 unsigned int samples_window;
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002483
2484 t_request = 0;
2485 t_queue = s->logs.t_queue;
2486 t_connect = s->logs.t_connect;
2487 t_close = s->logs.t_close;
2488 t_data = s->logs.t_data;
2489
2490 if (s->be->mode != PR_MODE_HTTP)
2491 t_data = t_connect;
2492
2493 if (t_connect < 0 || t_data < 0)
2494 return;
2495
2496 if (tv_isge(&s->logs.tv_request, &s->logs.tv_accept))
2497 t_request = tv_ms_elapsed(&s->logs.tv_accept, &s->logs.tv_request);
2498
2499 t_data -= t_connect;
2500 t_connect -= t_queue;
2501 t_queue -= t_request;
2502
2503 srv = objt_server(s->target);
2504 if (srv) {
Marcin Deraneka8dbdf32020-05-15 20:02:40 +02002505 samples_window = (((s->be->mode == PR_MODE_HTTP) ?
2506 srv->counters.p.http.cum_req : srv->counters.cum_lbconn) > TIME_STATS_SAMPLES) ? TIME_STATS_SAMPLES : 0;
2507 swrate_add_dynamic(&srv->counters.q_time, samples_window, t_queue);
2508 swrate_add_dynamic(&srv->counters.c_time, samples_window, t_connect);
2509 swrate_add_dynamic(&srv->counters.d_time, samples_window, t_data);
2510 swrate_add_dynamic(&srv->counters.t_time, samples_window, t_close);
Christopher Fauletefb41f02019-11-08 14:53:15 +01002511 HA_ATOMIC_UPDATE_MAX(&srv->counters.qtime_max, t_queue);
2512 HA_ATOMIC_UPDATE_MAX(&srv->counters.ctime_max, t_connect);
2513 HA_ATOMIC_UPDATE_MAX(&srv->counters.dtime_max, t_data);
2514 HA_ATOMIC_UPDATE_MAX(&srv->counters.ttime_max, t_close);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002515 }
Marcin Deraneka8dbdf32020-05-15 20:02:40 +02002516 samples_window = (((s->be->mode == PR_MODE_HTTP) ?
2517 s->be->be_counters.p.http.cum_req : s->be->be_counters.cum_lbconn) > TIME_STATS_SAMPLES) ? TIME_STATS_SAMPLES : 0;
2518 swrate_add_dynamic(&s->be->be_counters.q_time, samples_window, t_queue);
2519 swrate_add_dynamic(&s->be->be_counters.c_time, samples_window, t_connect);
2520 swrate_add_dynamic(&s->be->be_counters.d_time, samples_window, t_data);
2521 swrate_add_dynamic(&s->be->be_counters.t_time, samples_window, t_close);
Christopher Fauletefb41f02019-11-08 14:53:15 +01002522 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.qtime_max, t_queue);
2523 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.ctime_max, t_connect);
2524 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.dtime_max, t_data);
2525 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.ttime_max, t_close);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002526}
2527
Willy Tarreau7c669d72008-06-20 15:04:11 +02002528/*
2529 * This function adjusts sess->srv_conn and maintains the previous and new
Willy Tarreau87b09662015-04-03 00:22:06 +02002530 * server's served stream counts. Setting newsrv to NULL is enough to release
Willy Tarreau7c669d72008-06-20 15:04:11 +02002531 * current connection slot. This function also notifies any LB algo which might
Willy Tarreau87b09662015-04-03 00:22:06 +02002532 * expect to be informed about any change in the number of active streams on a
Willy Tarreau7c669d72008-06-20 15:04:11 +02002533 * server.
2534 */
Willy Tarreaue89fae32021-03-09 15:43:32 +01002535void sess_change_server(struct stream *strm, struct server *newsrv)
Willy Tarreau7c669d72008-06-20 15:04:11 +02002536{
Willy Tarreaue89fae32021-03-09 15:43:32 +01002537 struct server *oldsrv = strm->srv_conn;
Willy Tarreau751153e2021-02-17 13:33:24 +01002538
2539 if (oldsrv == newsrv)
Willy Tarreau7c669d72008-06-20 15:04:11 +02002540 return;
2541
Willy Tarreau751153e2021-02-17 13:33:24 +01002542 if (oldsrv) {
2543 _HA_ATOMIC_SUB(&oldsrv->served, 1);
2544 _HA_ATOMIC_SUB(&oldsrv->proxy->served, 1);
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002545 __ha_barrier_atomic_store();
Willy Tarreau59b0fec2021-02-17 16:01:37 +01002546 if (oldsrv->proxy->lbprm.server_drop_conn)
2547 oldsrv->proxy->lbprm.server_drop_conn(oldsrv, 0);
Willy Tarreaue89fae32021-03-09 15:43:32 +01002548 stream_del_srv_conn(strm);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002549 }
2550
2551 if (newsrv) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002552 _HA_ATOMIC_ADD(&newsrv->served, 1);
2553 _HA_ATOMIC_ADD(&newsrv->proxy->served, 1);
2554 __ha_barrier_atomic_store();
Willy Tarreau59b0fec2021-02-17 16:01:37 +01002555 if (newsrv->proxy->lbprm.server_take_conn)
2556 newsrv->proxy->lbprm.server_take_conn(newsrv, 0);
Willy Tarreaue89fae32021-03-09 15:43:32 +01002557 stream_add_srv_conn(strm, newsrv);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002558 }
2559}
2560
Willy Tarreau84455332009-03-15 22:34:05 +01002561/* Handle server-side errors for default protocols. It is called whenever a a
2562 * connection setup is aborted or a request is aborted in queue. It sets the
Willy Tarreau87b09662015-04-03 00:22:06 +02002563 * stream termination flags so that the caller does not have to worry about
Willy Tarreau84455332009-03-15 22:34:05 +01002564 * them. It's installed as ->srv_error for the server-side stream_interface.
2565 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002566void default_srv_error(struct stream *s, struct stream_interface *si)
Willy Tarreau84455332009-03-15 22:34:05 +01002567{
2568 int err_type = si->err_type;
2569 int err = 0, fin = 0;
2570
2571 if (err_type & SI_ET_QUEUE_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002572 err = SF_ERR_CLICL;
2573 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002574 }
2575 else if (err_type & SI_ET_CONN_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002576 err = SF_ERR_CLICL;
2577 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002578 }
2579 else if (err_type & SI_ET_QUEUE_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002580 err = SF_ERR_SRVTO;
2581 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002582 }
2583 else if (err_type & SI_ET_QUEUE_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002584 err = SF_ERR_SRVCL;
2585 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002586 }
2587 else if (err_type & SI_ET_CONN_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002588 err = SF_ERR_SRVTO;
2589 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002590 }
2591 else if (err_type & SI_ET_CONN_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002592 err = SF_ERR_SRVCL;
2593 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002594 }
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002595 else if (err_type & SI_ET_CONN_RES) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002596 err = SF_ERR_RESOURCE;
2597 fin = SF_FINST_C;
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002598 }
Willy Tarreau84455332009-03-15 22:34:05 +01002599 else /* SI_ET_CONN_OTHER and others */ {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002600 err = SF_ERR_INTERNAL;
2601 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002602 }
2603
Willy Tarreaue7dff022015-04-03 01:14:29 +02002604 if (!(s->flags & SF_ERR_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002605 s->flags |= err;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002606 if (!(s->flags & SF_FINST_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002607 s->flags |= fin;
2608}
Willy Tarreau7c669d72008-06-20 15:04:11 +02002609
Willy Tarreaue7dff022015-04-03 01:14:29 +02002610/* kill a stream and set the termination flags to <why> (one of SF_ERR_*) */
Willy Tarreau87b09662015-04-03 00:22:06 +02002611void stream_shutdown(struct stream *stream, int why)
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002612{
Willy Tarreau87b09662015-04-03 00:22:06 +02002613 if (stream->req.flags & (CF_SHUTW|CF_SHUTW_NOW))
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002614 return;
2615
Willy Tarreau87b09662015-04-03 00:22:06 +02002616 channel_shutw_now(&stream->req);
2617 channel_shutr_now(&stream->res);
2618 stream->task->nice = 1024;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002619 if (!(stream->flags & SF_ERR_MASK))
Willy Tarreau87b09662015-04-03 00:22:06 +02002620 stream->flags |= why;
2621 task_wakeup(stream->task, TASK_WOKEN_OTHER);
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002622}
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02002623
Willy Tarreau5484d582019-05-22 09:33:03 +02002624/* Appends a dump of the state of stream <s> into buffer <buf> which must have
2625 * preliminary be prepared by its caller, with each line prepended by prefix
2626 * <pfx>, and each line terminated by character <eol>.
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002627 */
Willy Tarreau5484d582019-05-22 09:33:03 +02002628void stream_dump(struct buffer *buf, const struct stream *s, const char *pfx, char eol)
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002629{
2630 const struct conn_stream *csf, *csb;
2631 const struct connection *cof, *cob;
2632 const struct appctx *acf, *acb;
2633 const struct server *srv;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002634 const char *src = "unknown";
2635 const char *dst = "unknown";
2636 char pn[INET6_ADDRSTRLEN];
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002637 const struct channel *req, *res;
2638 const struct stream_interface *si_f, *si_b;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002639
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002640 if (!s) {
Willy Tarreau5484d582019-05-22 09:33:03 +02002641 chunk_appendf(buf, "%sstrm=%p%c", pfx, s, eol);
2642 return;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002643 }
2644
Willy Tarreau5484d582019-05-22 09:33:03 +02002645 if (s->obj_type != OBJ_TYPE_STREAM) {
2646 chunk_appendf(buf, "%sstrm=%p [invalid type=%d(%s)]%c",
2647 pfx, s, s->obj_type, obj_type_name(&s->obj_type), eol);
2648 return;
2649 }
2650
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002651 si_f = &s->si[0];
2652 si_b = &s->si[1];
2653 req = &s->req;
2654 res = &s->res;
2655
2656 csf = objt_cs(si_f->end);
2657 cof = cs_conn(csf);
2658 acf = objt_appctx(si_f->end);
Willy Tarreau71e34c12019-07-17 15:07:06 +02002659 if (cof && cof->src && addr_to_str(cof->src, pn, sizeof(pn)) >= 0)
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002660 src = pn;
2661 else if (acf)
2662 src = acf->applet->name;
2663
2664 csb = objt_cs(si_b->end);
2665 cob = cs_conn(csb);
2666 acb = objt_appctx(si_b->end);
2667 srv = objt_server(s->target);
2668 if (srv)
2669 dst = srv->id;
2670 else if (acb)
2671 dst = acb->applet->name;
2672
Willy Tarreau5484d582019-05-22 09:33:03 +02002673 chunk_appendf(buf,
2674 "%sstrm=%p src=%s fe=%s be=%s dst=%s%c"
2675 "%srqf=%x rqa=%x rpf=%x rpa=%x sif=%s,%x sib=%s,%x%c"
2676 "%saf=%p,%u csf=%p,%x%c"
2677 "%sab=%p,%u csb=%p,%x%c"
2678 "%scof=%p,%x:%s(%p)/%s(%p)/%s(%d)%c"
2679 "%scob=%p,%x:%s(%p)/%s(%p)/%s(%d)%c"
2680 "",
2681 pfx, s, src, s->sess->fe->id, s->be->id, dst, eol,
2682 pfx, req->flags, req->analysers, res->flags, res->analysers,
2683 si_state_str(si_f->state), si_f->flags,
2684 si_state_str(si_b->state), si_b->flags, eol,
2685 pfx, acf, acf ? acf->st0 : 0, csf, csf ? csf->flags : 0, eol,
2686 pfx, acb, acb ? acb->st0 : 0, csb, csb ? csb->flags : 0, eol,
2687 pfx, cof, cof ? cof->flags : 0, conn_get_mux_name(cof), cof?cof->ctx:0, conn_get_xprt_name(cof),
2688 cof ? cof->xprt_ctx : 0, conn_get_ctrl_name(cof), cof ? cof->handle.fd : 0, eol,
2689 pfx, cob, cob ? cob->flags : 0, conn_get_mux_name(cob), cob?cob->ctx:0, conn_get_xprt_name(cob),
2690 cob ? cob->xprt_ctx : 0, conn_get_ctrl_name(cob), cob ? cob->handle.fd : 0, eol);
2691}
2692
2693/* dumps an error message for type <type> at ptr <ptr> related to stream <s>,
Willy Tarreaub106ce12019-05-22 08:57:01 +02002694 * having reached loop rate <rate>, then aborts hoping to retrieve a core.
Willy Tarreau5484d582019-05-22 09:33:03 +02002695 */
2696void stream_dump_and_crash(enum obj_type *obj, int rate)
2697{
2698 const struct stream *s;
Willy Tarreau5484d582019-05-22 09:33:03 +02002699 char *msg = NULL;
2700 const void *ptr;
2701
2702 ptr = s = objt_stream(obj);
2703 if (!s) {
2704 const struct appctx *appctx = objt_appctx(obj);
2705 if (!appctx)
2706 return;
2707 ptr = appctx;
2708 s = si_strm(appctx->owner);
2709 if (!s)
2710 return;
2711 }
2712
Willy Tarreau5484d582019-05-22 09:33:03 +02002713 chunk_reset(&trash);
2714 stream_dump(&trash, s, "", ' ');
Willy Tarreau9753d612020-05-01 16:57:02 +02002715
2716 chunk_appendf(&trash, "filters={");
2717 if (HAS_FILTERS(s)) {
2718 struct filter *filter;
2719
2720 list_for_each_entry(filter, &s->strm_flt.filters, list) {
2721 if (filter->list.p != &s->strm_flt.filters)
2722 chunk_appendf(&trash, ", ");
2723 chunk_appendf(&trash, "%p=\"%s\"", filter, FLT_ID(filter));
2724 }
2725 }
2726 chunk_appendf(&trash, "}");
2727
Willy Tarreaub106ce12019-05-22 08:57:01 +02002728 memprintf(&msg,
2729 "A bogus %s [%p] is spinning at %d calls per second and refuses to die, "
2730 "aborting now! Please report this error to developers "
2731 "[%s]\n",
Willy Tarreau5484d582019-05-22 09:33:03 +02002732 obj_type_name(obj), ptr, rate, trash.area);
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002733
2734 ha_alert("%s", msg);
2735 send_log(NULL, LOG_EMERG, "%s", msg);
Willy Tarreau2f67e542021-03-02 19:19:41 +01002736 ABORT_NOW();
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002737}
2738
Willy Tarreaua698eb62021-02-24 10:37:01 +01002739/* initialize the require structures */
2740static void init_stream()
2741{
2742 int thr;
2743
2744 for (thr = 0; thr < MAX_THREADS; thr++)
2745 LIST_INIT(&ha_thread_info[thr].streams);
2746}
2747INITCALL0(STG_INIT, init_stream);
2748
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002749/* Generates a unique ID based on the given <format>, stores it in the given <strm> and
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002750 * returns the unique ID.
2751
2752 * If this function fails to allocate memory IST_NULL is returned.
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002753 *
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002754 * If an ID is already stored within the stream nothing happens existing unique ID is
2755 * returned.
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002756 */
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002757struct ist stream_generate_unique_id(struct stream *strm, struct list *format)
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002758{
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002759 if (isttest(strm->unique_id)) {
2760 return strm->unique_id;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002761 }
2762 else {
2763 char *unique_id;
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002764 int length;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002765 if ((unique_id = pool_alloc(pool_head_uniqueid)) == NULL)
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002766 return IST_NULL;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002767
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002768 length = build_logline(strm, unique_id, UNIQUEID_LEN, format);
2769 strm->unique_id = ist2(unique_id, length);
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002770
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002771 return strm->unique_id;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002772 }
2773}
2774
Willy Tarreau8b22a712010-06-18 17:46:06 +02002775/************************************************************************/
2776/* All supported ACL keywords must be declared here. */
2777/************************************************************************/
2778
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02002779/* 0=OK, <0=Alert, >0=Warning */
2780static enum act_parse_ret stream_parse_use_service(const char **args, int *cur_arg,
2781 struct proxy *px, struct act_rule *rule,
2782 char **err)
2783{
2784 struct action_kw *kw;
2785
2786 /* Check if the service name exists. */
2787 if (*(args[*cur_arg]) == 0) {
2788 memprintf(err, "'%s' expects a service name.", args[0]);
Thierry FOURNIER337eae12015-11-26 19:48:04 +01002789 return ACT_RET_PRS_ERR;
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02002790 }
2791
2792 /* lookup for keyword corresponding to a service. */
2793 kw = action_lookup(&service_keywords, args[*cur_arg]);
2794 if (!kw) {
2795 memprintf(err, "'%s' unknown service name.", args[1]);
2796 return ACT_RET_PRS_ERR;
2797 }
2798 (*cur_arg)++;
2799
2800 /* executes specific rule parser. */
2801 rule->kw = kw;
2802 if (kw->parse((const char **)args, cur_arg, px, rule, err) == ACT_RET_PRS_ERR)
2803 return ACT_RET_PRS_ERR;
2804
2805 /* Register processing function. */
2806 rule->action_ptr = process_use_service;
2807 rule->action = ACT_CUSTOM;
2808
2809 return ACT_RET_PRS_OK;
2810}
2811
2812void service_keywords_register(struct action_kw_list *kw_list)
2813{
2814 LIST_ADDQ(&service_keywords, &kw_list->list);
2815}
2816
Thierry Fournier87e53992020-11-28 19:32:14 +01002817struct action_kw *service_find(const char *kw)
2818{
2819 return action_lookup(&service_keywords, kw);
2820}
2821
Willy Tarreau679bba12019-03-19 08:08:10 +01002822/* Lists the known services on <out> */
2823void list_services(FILE *out)
2824{
2825 struct action_kw_list *kw_list;
2826 int found = 0;
2827 int i;
2828
2829 fprintf(out, "Available services :");
2830 list_for_each_entry(kw_list, &service_keywords, list) {
2831 for (i = 0; kw_list->kw[i].kw != NULL; i++) {
Willy Tarreau679bba12019-03-19 08:08:10 +01002832 found = 1;
William Dauchyaabde712021-01-09 17:26:20 +01002833 fprintf(out, " %s", kw_list->kw[i].kw);
Willy Tarreau679bba12019-03-19 08:08:10 +01002834 }
2835 }
2836 if (!found)
2837 fprintf(out, " none\n");
2838}
William Lallemand4c5b4d52016-11-21 08:51:11 +01002839
2840/* This function dumps a complete stream state onto the stream interface's
2841 * read buffer. The stream has to be set in strm. It returns 0 if the output
2842 * buffer is full and it needs to be called again, otherwise non-zero. It is
2843 * designed to be called from stats_dump_strm_to_buffer() below.
2844 */
2845static int stats_dump_full_strm_to_buffer(struct stream_interface *si, struct stream *strm)
2846{
2847 struct appctx *appctx = __objt_appctx(si->end);
2848 struct tm tm;
2849 extern const char *monthname[12];
2850 char pn[INET6_ADDRSTRLEN];
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002851 struct conn_stream *cs;
William Lallemand4c5b4d52016-11-21 08:51:11 +01002852 struct connection *conn;
2853 struct appctx *tmpctx;
2854
2855 chunk_reset(&trash);
2856
2857 if (appctx->ctx.sess.section > 0 && appctx->ctx.sess.uid != strm->uniq_id) {
2858 /* stream changed, no need to go any further */
2859 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
Willy Tarreaue6e52362019-01-04 17:42:57 +01002860 if (ci_putchk(si_ic(si), &trash) == -1)
2861 goto full;
2862 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01002863 }
2864
2865 switch (appctx->ctx.sess.section) {
2866 case 0: /* main status of the stream */
2867 appctx->ctx.sess.uid = strm->uniq_id;
2868 appctx->ctx.sess.section = 1;
2869 /* fall through */
2870
2871 case 1:
2872 get_localtime(strm->logs.accept_date.tv_sec, &tm);
2873 chunk_appendf(&trash,
2874 "%p: [%02d/%s/%04d:%02d:%02d:%02d.%06d] id=%u proto=%s",
2875 strm,
2876 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
2877 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(strm->logs.accept_date.tv_usec),
2878 strm->uniq_id,
Willy Tarreaub7436612020-08-28 19:51:44 +02002879 strm_li(strm) ? strm_li(strm)->rx.proto->name : "?");
William Lallemand4c5b4d52016-11-21 08:51:11 +01002880
2881 conn = objt_conn(strm_orig(strm));
Willy Tarreau71e34c12019-07-17 15:07:06 +02002882 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002883 case AF_INET:
2884 case AF_INET6:
2885 chunk_appendf(&trash, " source=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002886 pn, get_host_port(conn->src));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002887 break;
2888 case AF_UNIX:
2889 chunk_appendf(&trash, " source=unix:%d\n", strm_li(strm)->luid);
2890 break;
2891 default:
2892 /* no more information to print right now */
2893 chunk_appendf(&trash, "\n");
2894 break;
2895 }
2896
2897 chunk_appendf(&trash,
Willy Tarreaub9813182021-02-24 11:29:51 +01002898 " flags=0x%x, conn_retries=%d, srv_conn=%p, pend_pos=%p waiting=%d epoch=%#x\n",
Willy Tarreauadf7a152019-01-07 10:10:07 +01002899 strm->flags, strm->si[1].conn_retries, strm->srv_conn, strm->pend_pos,
Willy Tarreaub9813182021-02-24 11:29:51 +01002900 LIST_ADDED(&strm->buffer_wait.list), strm->stream_epoch);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002901
2902 chunk_appendf(&trash,
2903 " frontend=%s (id=%u mode=%s), listener=%s (id=%u)",
2904 strm_fe(strm)->id, strm_fe(strm)->uuid, strm_fe(strm)->mode ? "http" : "tcp",
2905 strm_li(strm) ? strm_li(strm)->name ? strm_li(strm)->name : "?" : "?",
2906 strm_li(strm) ? strm_li(strm)->luid : 0);
2907
Willy Tarreau71e34c12019-07-17 15:07:06 +02002908 switch (conn && conn_get_dst(conn) ? addr_to_str(conn->dst, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002909 case AF_INET:
2910 case AF_INET6:
2911 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002912 pn, get_host_port(conn->dst));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002913 break;
2914 case AF_UNIX:
2915 chunk_appendf(&trash, " addr=unix:%d\n", strm_li(strm)->luid);
2916 break;
2917 default:
2918 /* no more information to print right now */
2919 chunk_appendf(&trash, "\n");
2920 break;
2921 }
2922
2923 if (strm->be->cap & PR_CAP_BE)
2924 chunk_appendf(&trash,
2925 " backend=%s (id=%u mode=%s)",
2926 strm->be->id,
2927 strm->be->uuid, strm->be->mode ? "http" : "tcp");
2928 else
2929 chunk_appendf(&trash, " backend=<NONE> (id=-1 mode=-)");
2930
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002931 cs = objt_cs(strm->si[1].end);
2932 conn = cs_conn(cs);
2933
Willy Tarreau71e34c12019-07-17 15:07:06 +02002934 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002935 case AF_INET:
2936 case AF_INET6:
2937 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002938 pn, get_host_port(conn->src));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002939 break;
2940 case AF_UNIX:
2941 chunk_appendf(&trash, " addr=unix\n");
2942 break;
2943 default:
2944 /* no more information to print right now */
2945 chunk_appendf(&trash, "\n");
2946 break;
2947 }
2948
2949 if (strm->be->cap & PR_CAP_BE)
2950 chunk_appendf(&trash,
2951 " server=%s (id=%u)",
2952 objt_server(strm->target) ? objt_server(strm->target)->id : "<none>",
2953 objt_server(strm->target) ? objt_server(strm->target)->puid : 0);
2954 else
2955 chunk_appendf(&trash, " server=<NONE> (id=-1)");
2956
Willy Tarreau71e34c12019-07-17 15:07:06 +02002957 switch (conn && conn_get_dst(conn) ? addr_to_str(conn->dst, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002958 case AF_INET:
2959 case AF_INET6:
2960 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002961 pn, get_host_port(conn->dst));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002962 break;
2963 case AF_UNIX:
2964 chunk_appendf(&trash, " addr=unix\n");
2965 break;
2966 default:
2967 /* no more information to print right now */
2968 chunk_appendf(&trash, "\n");
2969 break;
2970 }
2971
2972 chunk_appendf(&trash,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02002973 " task=%p (state=0x%02x nice=%d calls=%u rate=%u exp=%s tmask=0x%lx%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002974 strm->task,
2975 strm->task->state,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02002976 strm->task->nice, strm->task->calls, read_freq_ctr(&strm->call_rate),
William Lallemand4c5b4d52016-11-21 08:51:11 +01002977 strm->task->expire ?
2978 tick_is_expired(strm->task->expire, now_ms) ? "<PAST>" :
2979 human_time(TICKS_TO_MS(strm->task->expire - now_ms),
2980 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Fauletf0205062017-11-15 20:56:43 +01002981 strm->task->thread_mask,
William Lallemand4c5b4d52016-11-21 08:51:11 +01002982 task_in_rq(strm->task) ? ", running" : "");
2983
2984 chunk_appendf(&trash,
2985 " age=%s)\n",
2986 human_time(now.tv_sec - strm->logs.accept_date.tv_sec, 1));
2987
2988 if (strm->txn)
2989 chunk_appendf(&trash,
Christopher Fauletbcac7862019-07-17 10:46:50 +02002990 " 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 +01002991 strm->txn, strm->txn->flags, strm->txn->meth, strm->txn->status,
Willy Tarreau7778b592019-01-07 10:38:10 +01002992 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 +02002993 strm->txn->req.flags, strm->txn->rsp.flags);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002994
2995 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01002996 " 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 +01002997 &strm->si[0],
2998 si_state_str(strm->si[0].state),
2999 strm->si[0].flags,
3000 obj_type_name(strm->si[0].end),
3001 obj_base_ptr(strm->si[0].end),
3002 strm->si[0].exp ?
3003 tick_is_expired(strm->si[0].exp, now_ms) ? "<PAST>" :
3004 human_time(TICKS_TO_MS(strm->si[0].exp - now_ms),
3005 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01003006 strm->si[0].err_type, strm->si[0].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003007
3008 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01003009 " 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 +01003010 &strm->si[1],
3011 si_state_str(strm->si[1].state),
3012 strm->si[1].flags,
3013 obj_type_name(strm->si[1].end),
3014 obj_base_ptr(strm->si[1].end),
3015 strm->si[1].exp ?
3016 tick_is_expired(strm->si[1].exp, now_ms) ? "<PAST>" :
3017 human_time(TICKS_TO_MS(strm->si[1].exp - now_ms),
3018 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01003019 strm->si[1].err_type, strm->si[1].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003020
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003021 if ((cs = objt_cs(strm->si[0].end)) != NULL) {
3022 conn = cs->conn;
3023
William Lallemand4c5b4d52016-11-21 08:51:11 +01003024 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02003025 " co0=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003026 conn,
3027 conn_get_ctrl_name(conn),
3028 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02003029 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003030 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003031 obj_type_name(conn->target),
3032 obj_base_ptr(conn->target));
3033
3034 chunk_appendf(&trash,
Willy Tarreau76913d32019-08-30 14:33:11 +02003035 " flags=0x%08x fd=%d fd.state=%02x updt=%d fd.tmask=0x%lx\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003036 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003037 conn->handle.fd,
3038 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01003039 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01003040 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01003041
3042 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003043 }
3044 else if ((tmpctx = objt_appctx(strm->si[0].end)) != NULL) {
3045 chunk_appendf(&trash,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003046 " 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 +01003047 tmpctx,
3048 tmpctx->st0,
3049 tmpctx->st1,
3050 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01003051 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02003052 tmpctx->thread_mask,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003053 tmpctx->t->nice, tmpctx->t->calls, read_freq_ctr(&tmpctx->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003054 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003055 }
3056
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003057 if ((cs = objt_cs(strm->si[1].end)) != NULL) {
3058 conn = cs->conn;
3059
William Lallemand4c5b4d52016-11-21 08:51:11 +01003060 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02003061 " co1=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003062 conn,
3063 conn_get_ctrl_name(conn),
3064 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02003065 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003066 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003067 obj_type_name(conn->target),
3068 obj_base_ptr(conn->target));
3069
3070 chunk_appendf(&trash,
Willy Tarreau76913d32019-08-30 14:33:11 +02003071 " flags=0x%08x fd=%d fd.state=%02x updt=%d fd.tmask=0x%lx\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003072 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003073 conn->handle.fd,
3074 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01003075 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01003076 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01003077
3078 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003079 }
3080 else if ((tmpctx = objt_appctx(strm->si[1].end)) != NULL) {
3081 chunk_appendf(&trash,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003082 " 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 +01003083 tmpctx,
3084 tmpctx->st0,
3085 tmpctx->st1,
3086 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01003087 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02003088 tmpctx->thread_mask,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003089 tmpctx->t->nice, tmpctx->t->calls, read_freq_ctr(&tmpctx->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003090 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003091 }
3092
3093 chunk_appendf(&trash,
3094 " req=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
3095 " an_exp=%s",
3096 &strm->req,
3097 strm->req.flags, strm->req.analysers,
3098 strm->req.pipe ? strm->req.pipe->data : 0,
3099 strm->req.to_forward, strm->req.total,
3100 strm->req.analyse_exp ?
3101 human_time(TICKS_TO_MS(strm->req.analyse_exp - now_ms),
3102 TICKS_TO_MS(1000)) : "<NEVER>");
3103
3104 chunk_appendf(&trash,
3105 " rex=%s",
3106 strm->req.rex ?
3107 human_time(TICKS_TO_MS(strm->req.rex - now_ms),
3108 TICKS_TO_MS(1000)) : "<NEVER>");
3109
3110 chunk_appendf(&trash,
3111 " wex=%s\n"
Christopher Fauletbcac7862019-07-17 10:46:50 +02003112 " buf=%p data=%p o=%u p=%u i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003113 strm->req.wex ?
3114 human_time(TICKS_TO_MS(strm->req.wex - now_ms),
3115 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003116 &strm->req.buf,
3117 b_orig(&strm->req.buf), (unsigned int)co_data(&strm->req),
Christopher Fauletbcac7862019-07-17 10:46:50 +02003118 (unsigned int)ci_head_ofs(&strm->req), (unsigned int)ci_data(&strm->req),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003119 (unsigned int)strm->req.buf.size);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003120
Christopher Fauletb9af8812019-01-04 14:30:44 +01003121 if (IS_HTX_STRM(strm)) {
3122 struct htx *htx = htxbuf(&strm->req.buf);
3123
3124 chunk_appendf(&trash,
Willy Tarreaub84e67f2019-01-07 10:01:34 +01003125 " htx=%p flags=0x%x size=%u data=%u used=%u wrap=%s extra=%llu\n",
Christopher Faulet192c6a22019-06-11 16:32:24 +02003126 htx, htx->flags, htx->size, htx->data, htx_nbblks(htx),
Christopher Faulet28f29c72019-04-30 17:55:45 +02003127 (htx->tail >= htx->head) ? "NO" : "YES",
Christopher Fauletb9af8812019-01-04 14:30:44 +01003128 (unsigned long long)htx->extra);
3129 }
3130
William Lallemand4c5b4d52016-11-21 08:51:11 +01003131 chunk_appendf(&trash,
3132 " res=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
3133 " an_exp=%s",
3134 &strm->res,
3135 strm->res.flags, strm->res.analysers,
3136 strm->res.pipe ? strm->res.pipe->data : 0,
3137 strm->res.to_forward, strm->res.total,
3138 strm->res.analyse_exp ?
3139 human_time(TICKS_TO_MS(strm->res.analyse_exp - now_ms),
3140 TICKS_TO_MS(1000)) : "<NEVER>");
3141
3142 chunk_appendf(&trash,
3143 " rex=%s",
3144 strm->res.rex ?
3145 human_time(TICKS_TO_MS(strm->res.rex - now_ms),
3146 TICKS_TO_MS(1000)) : "<NEVER>");
3147
3148 chunk_appendf(&trash,
3149 " wex=%s\n"
Christopher Fauletbcac7862019-07-17 10:46:50 +02003150 " buf=%p data=%p o=%u p=%u i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003151 strm->res.wex ?
3152 human_time(TICKS_TO_MS(strm->res.wex - now_ms),
3153 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003154 &strm->res.buf,
3155 b_orig(&strm->res.buf), (unsigned int)co_data(&strm->res),
Christopher Fauletbcac7862019-07-17 10:46:50 +02003156 (unsigned int)ci_head_ofs(&strm->res), (unsigned int)ci_data(&strm->res),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003157 (unsigned int)strm->res.buf.size);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003158
Christopher Fauletb9af8812019-01-04 14:30:44 +01003159 if (IS_HTX_STRM(strm)) {
3160 struct htx *htx = htxbuf(&strm->res.buf);
3161
3162 chunk_appendf(&trash,
3163 " htx=%p flags=0x%x size=%u data=%u used=%u wrap=%s extra=%llu\n",
Christopher Faulet192c6a22019-06-11 16:32:24 +02003164 htx, htx->flags, htx->size, htx->data, htx_nbblks(htx),
Christopher Faulet28f29c72019-04-30 17:55:45 +02003165 (htx->tail >= htx->head) ? "NO" : "YES",
Christopher Fauletb9af8812019-01-04 14:30:44 +01003166 (unsigned long long)htx->extra);
3167 }
3168
Willy Tarreaue6e52362019-01-04 17:42:57 +01003169 if (ci_putchk(si_ic(si), &trash) == -1)
3170 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003171
3172 /* use other states to dump the contents */
3173 }
3174 /* end of dump */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003175 done:
William Lallemand4c5b4d52016-11-21 08:51:11 +01003176 appctx->ctx.sess.uid = 0;
3177 appctx->ctx.sess.section = 0;
3178 return 1;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003179 full:
3180 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003181}
3182
3183
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003184static int cli_parse_show_sess(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemand4c5b4d52016-11-21 08:51:11 +01003185{
William Lallemand4c5b4d52016-11-21 08:51:11 +01003186 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
3187 return 1;
3188
3189 if (*args[2] && strcmp(args[2], "all") == 0)
3190 appctx->ctx.sess.target = (void *)-1;
3191 else if (*args[2])
3192 appctx->ctx.sess.target = (void *)strtoul(args[2], NULL, 0);
3193 else
3194 appctx->ctx.sess.target = NULL;
3195 appctx->ctx.sess.section = 0; /* start with stream status */
3196 appctx->ctx.sess.pos = 0;
Willy Tarreaua698eb62021-02-24 10:37:01 +01003197 appctx->ctx.sess.thr = 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003198
Willy Tarreaub9813182021-02-24 11:29:51 +01003199 /* let's set our own stream's epoch to the current one and increment
3200 * it so that we know which streams were already there before us.
3201 */
3202 si_strm(appctx->owner)->stream_epoch = _HA_ATOMIC_XADD(&stream_epoch, 1);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003203 return 0;
3204}
3205
3206/* This function dumps all streams' states onto the stream interface's
3207 * read buffer. It returns 0 if the output buffer is full and it needs
Willy Tarreaue6e52362019-01-04 17:42:57 +01003208 * to be called again, otherwise non-zero. It proceeds in an isolated
3209 * thread so there is no thread safety issue here.
William Lallemand4c5b4d52016-11-21 08:51:11 +01003210 */
3211static int cli_io_handler_dump_sess(struct appctx *appctx)
3212{
3213 struct stream_interface *si = appctx->owner;
3214 struct connection *conn;
3215
Willy Tarreaue6e52362019-01-04 17:42:57 +01003216 thread_isolate();
3217
William Lallemand4c5b4d52016-11-21 08:51:11 +01003218 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW))) {
3219 /* If we're forced to shut down, we might have to remove our
3220 * reference to the last stream being dumped.
3221 */
3222 if (appctx->st2 == STAT_ST_LIST) {
3223 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users)) {
3224 LIST_DEL(&appctx->ctx.sess.bref.users);
3225 LIST_INIT(&appctx->ctx.sess.bref.users);
3226 }
3227 }
Willy Tarreaue6e52362019-01-04 17:42:57 +01003228 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003229 }
3230
3231 chunk_reset(&trash);
3232
3233 switch (appctx->st2) {
3234 case STAT_ST_INIT:
3235 /* the function had not been called yet, let's prepare the
3236 * buffer for a response. We initialize the current stream
3237 * pointer to the first in the global list. When a target
3238 * stream is being destroyed, it is responsible for updating
3239 * this pointer. We know we have reached the end when this
3240 * pointer points back to the head of the streams list.
3241 */
3242 LIST_INIT(&appctx->ctx.sess.bref.users);
Willy Tarreaua698eb62021-02-24 10:37:01 +01003243 appctx->ctx.sess.bref.ref = ha_thread_info[appctx->ctx.sess.thr].streams.n;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003244 appctx->st2 = STAT_ST_LIST;
3245 /* fall through */
3246
3247 case STAT_ST_LIST:
3248 /* first, let's detach the back-ref from a possible previous stream */
3249 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users)) {
3250 LIST_DEL(&appctx->ctx.sess.bref.users);
3251 LIST_INIT(&appctx->ctx.sess.bref.users);
3252 }
3253
Willy Tarreau5d533e22021-02-24 11:53:17 +01003254 /* and start from where we stopped */
Willy Tarreaua698eb62021-02-24 10:37:01 +01003255 while (1) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003256 char pn[INET6_ADDRSTRLEN];
3257 struct stream *curr_strm;
Willy Tarreaua698eb62021-02-24 10:37:01 +01003258 int done= 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003259
Willy Tarreaua698eb62021-02-24 10:37:01 +01003260 if (appctx->ctx.sess.bref.ref == &ha_thread_info[appctx->ctx.sess.thr].streams)
3261 done = 1;
3262 else {
3263 /* check if we've found a stream created after issuing the "show sess" */
3264 curr_strm = LIST_ELEM(appctx->ctx.sess.bref.ref, struct stream *, list);
3265 if ((int)(curr_strm->stream_epoch - si_strm(appctx->owner)->stream_epoch) > 0)
3266 done = 1;
3267 }
William Lallemand4c5b4d52016-11-21 08:51:11 +01003268
Willy Tarreaua698eb62021-02-24 10:37:01 +01003269 if (done) {
3270 appctx->ctx.sess.thr++;
3271 if (appctx->ctx.sess.thr >= global.nbthread)
3272 break;
3273 appctx->ctx.sess.bref.ref = ha_thread_info[appctx->ctx.sess.thr].streams.n;
3274 continue;
3275 }
Willy Tarreau5d533e22021-02-24 11:53:17 +01003276
William Lallemand4c5b4d52016-11-21 08:51:11 +01003277 if (appctx->ctx.sess.target) {
3278 if (appctx->ctx.sess.target != (void *)-1 && appctx->ctx.sess.target != curr_strm)
3279 goto next_sess;
3280
3281 LIST_ADDQ(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
3282 /* call the proper dump() function and return if we're missing space */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003283 if (!stats_dump_full_strm_to_buffer(si, curr_strm))
3284 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003285
3286 /* stream dump complete */
3287 LIST_DEL(&appctx->ctx.sess.bref.users);
3288 LIST_INIT(&appctx->ctx.sess.bref.users);
3289 if (appctx->ctx.sess.target != (void *)-1) {
3290 appctx->ctx.sess.target = NULL;
3291 break;
3292 }
3293 else
3294 goto next_sess;
3295 }
3296
3297 chunk_appendf(&trash,
3298 "%p: proto=%s",
3299 curr_strm,
Willy Tarreaub7436612020-08-28 19:51:44 +02003300 strm_li(curr_strm) ? strm_li(curr_strm)->rx.proto->name : "?");
William Lallemand4c5b4d52016-11-21 08:51:11 +01003301
3302 conn = objt_conn(strm_orig(curr_strm));
Willy Tarreau71e34c12019-07-17 15:07:06 +02003303 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003304 case AF_INET:
3305 case AF_INET6:
3306 chunk_appendf(&trash,
3307 " src=%s:%d fe=%s be=%s srv=%s",
3308 pn,
Willy Tarreau71e34c12019-07-17 15:07:06 +02003309 get_host_port(conn->src),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003310 strm_fe(curr_strm)->id,
3311 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
3312 objt_server(curr_strm->target) ? objt_server(curr_strm->target)->id : "<none>"
3313 );
3314 break;
3315 case AF_UNIX:
3316 chunk_appendf(&trash,
3317 " src=unix:%d fe=%s be=%s srv=%s",
3318 strm_li(curr_strm)->luid,
3319 strm_fe(curr_strm)->id,
3320 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
3321 objt_server(curr_strm->target) ? objt_server(curr_strm->target)->id : "<none>"
3322 );
3323 break;
3324 }
3325
3326 chunk_appendf(&trash,
Willy Tarreaub9813182021-02-24 11:29:51 +01003327 " ts=%02x epoch=%#x age=%s calls=%u rate=%u cpu=%llu lat=%llu",
3328 curr_strm->task->state, curr_strm->stream_epoch,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003329 human_time(now.tv_sec - curr_strm->logs.tv_accept.tv_sec, 1),
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003330 curr_strm->task->calls, read_freq_ctr(&curr_strm->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003331 (unsigned long long)curr_strm->task->cpu_time, (unsigned long long)curr_strm->task->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003332
3333 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003334 " rq[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003335 curr_strm->req.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003336 (unsigned int)ci_data(&curr_strm->req),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003337 curr_strm->req.analysers,
3338 curr_strm->req.rex ?
3339 human_time(TICKS_TO_MS(curr_strm->req.rex - now_ms),
3340 TICKS_TO_MS(1000)) : "");
3341
3342 chunk_appendf(&trash,
3343 ",wx=%s",
3344 curr_strm->req.wex ?
3345 human_time(TICKS_TO_MS(curr_strm->req.wex - now_ms),
3346 TICKS_TO_MS(1000)) : "");
3347
3348 chunk_appendf(&trash,
3349 ",ax=%s]",
3350 curr_strm->req.analyse_exp ?
3351 human_time(TICKS_TO_MS(curr_strm->req.analyse_exp - now_ms),
3352 TICKS_TO_MS(1000)) : "");
3353
3354 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003355 " rp[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003356 curr_strm->res.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003357 (unsigned int)ci_data(&curr_strm->res),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003358 curr_strm->res.analysers,
3359 curr_strm->res.rex ?
3360 human_time(TICKS_TO_MS(curr_strm->res.rex - now_ms),
3361 TICKS_TO_MS(1000)) : "");
3362
3363 chunk_appendf(&trash,
3364 ",wx=%s",
3365 curr_strm->res.wex ?
3366 human_time(TICKS_TO_MS(curr_strm->res.wex - now_ms),
3367 TICKS_TO_MS(1000)) : "");
3368
3369 chunk_appendf(&trash,
3370 ",ax=%s]",
3371 curr_strm->res.analyse_exp ?
3372 human_time(TICKS_TO_MS(curr_strm->res.analyse_exp - now_ms),
3373 TICKS_TO_MS(1000)) : "");
3374
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003375 conn = cs_conn(objt_cs(curr_strm->si[0].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003376 chunk_appendf(&trash,
3377 " s0=[%d,%1xh,fd=%d,ex=%s]",
3378 curr_strm->si[0].state,
3379 curr_strm->si[0].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003380 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003381 curr_strm->si[0].exp ?
3382 human_time(TICKS_TO_MS(curr_strm->si[0].exp - now_ms),
3383 TICKS_TO_MS(1000)) : "");
3384
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003385 conn = cs_conn(objt_cs(curr_strm->si[1].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003386 chunk_appendf(&trash,
3387 " s1=[%d,%1xh,fd=%d,ex=%s]",
3388 curr_strm->si[1].state,
3389 curr_strm->si[1].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003390 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003391 curr_strm->si[1].exp ?
3392 human_time(TICKS_TO_MS(curr_strm->si[1].exp - now_ms),
3393 TICKS_TO_MS(1000)) : "");
3394
3395 chunk_appendf(&trash,
3396 " exp=%s",
3397 curr_strm->task->expire ?
3398 human_time(TICKS_TO_MS(curr_strm->task->expire - now_ms),
3399 TICKS_TO_MS(1000)) : "");
3400 if (task_in_rq(curr_strm->task))
3401 chunk_appendf(&trash, " run(nice=%d)", curr_strm->task->nice);
3402
3403 chunk_appendf(&trash, "\n");
3404
Willy Tarreau06d80a92017-10-19 14:32:15 +02003405 if (ci_putchk(si_ic(si), &trash) == -1) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003406 /* let's try again later from this stream. We add ourselves into
3407 * this stream's users so that it can remove us upon termination.
3408 */
William Lallemand4c5b4d52016-11-21 08:51:11 +01003409 LIST_ADDQ(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
Willy Tarreaue6e52362019-01-04 17:42:57 +01003410 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003411 }
3412
3413 next_sess:
3414 appctx->ctx.sess.bref.ref = curr_strm->list.n;
3415 }
3416
3417 if (appctx->ctx.sess.target && appctx->ctx.sess.target != (void *)-1) {
3418 /* specified stream not found */
3419 if (appctx->ctx.sess.section > 0)
3420 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
3421 else
3422 chunk_appendf(&trash, "Session not found.\n");
3423
Willy Tarreaue6e52362019-01-04 17:42:57 +01003424 if (ci_putchk(si_ic(si), &trash) == -1)
3425 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003426
3427 appctx->ctx.sess.target = NULL;
3428 appctx->ctx.sess.uid = 0;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003429 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003430 }
William Lallemand4c5b4d52016-11-21 08:51:11 +01003431 /* fall through */
3432
3433 default:
3434 appctx->st2 = STAT_ST_FIN;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003435 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003436 }
Willy Tarreaue6e52362019-01-04 17:42:57 +01003437 done:
3438 thread_release();
3439 return 1;
3440 full:
3441 thread_release();
3442 si_rx_room_blk(si);
3443 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003444}
3445
3446static void cli_release_show_sess(struct appctx *appctx)
3447{
Willy Tarreaua698eb62021-02-24 10:37:01 +01003448 if (appctx->st2 == STAT_ST_LIST && appctx->ctx.sess.thr < global.nbthread) {
Willy Tarreau49de6852021-02-24 13:46:12 +01003449 /* a dump was aborted, either in error or timeout. We need to
3450 * safely detach from the target stream's list. It's mandatory
3451 * to lock because a stream on the target thread could be moving
3452 * our node.
3453 */
3454 thread_isolate();
William Lallemand4c5b4d52016-11-21 08:51:11 +01003455 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users))
3456 LIST_DEL(&appctx->ctx.sess.bref.users);
Willy Tarreau49de6852021-02-24 13:46:12 +01003457 thread_release();
William Lallemand4c5b4d52016-11-21 08:51:11 +01003458 }
3459}
3460
Willy Tarreau61b65212016-11-24 11:09:25 +01003461/* Parses the "shutdown session" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003462static int cli_parse_shutdown_session(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau61b65212016-11-24 11:09:25 +01003463{
3464 struct stream *strm, *ptr;
Willy Tarreaua698eb62021-02-24 10:37:01 +01003465 int thr;
Willy Tarreau61b65212016-11-24 11:09:25 +01003466
3467 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3468 return 1;
3469
Willy Tarreau9d008692019-08-09 11:21:01 +02003470 if (!*args[2])
3471 return cli_err(appctx, "Session pointer expected (use 'show sess').\n");
Willy Tarreau61b65212016-11-24 11:09:25 +01003472
3473 ptr = (void *)strtoul(args[2], NULL, 0);
Willy Tarreaua698eb62021-02-24 10:37:01 +01003474 strm = NULL;
Willy Tarreau61b65212016-11-24 11:09:25 +01003475
Willy Tarreau3f5dd292021-02-24 11:11:06 +01003476 thread_isolate();
3477
Willy Tarreau61b65212016-11-24 11:09:25 +01003478 /* first, look for the requested stream in the stream table */
Willy Tarreaua698eb62021-02-24 10:37:01 +01003479 for (thr = 0; !strm && thr < global.nbthread; thr++) {
3480 list_for_each_entry(strm, &ha_thread_info[thr].streams, list) {
3481 if (strm == ptr) {
3482 stream_shutdown(strm, SF_ERR_KILLED);
3483 break;
3484 }
Willy Tarreau3f5dd292021-02-24 11:11:06 +01003485 }
Willy Tarreau61b65212016-11-24 11:09:25 +01003486 }
3487
Willy Tarreau3f5dd292021-02-24 11:11:06 +01003488 thread_release();
3489
Willy Tarreau61b65212016-11-24 11:09:25 +01003490 /* do we have the stream ? */
Willy Tarreaua698eb62021-02-24 10:37:01 +01003491 if (!strm)
Willy Tarreau9d008692019-08-09 11:21:01 +02003492 return cli_err(appctx, "No such session (use 'show sess').\n");
Willy Tarreau61b65212016-11-24 11:09:25 +01003493
Willy Tarreau61b65212016-11-24 11:09:25 +01003494 return 1;
3495}
3496
Willy Tarreau4e46b622016-11-23 16:50:48 +01003497/* Parses the "shutdown session server" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003498static int cli_parse_shutdown_sessions_server(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau4e46b622016-11-23 16:50:48 +01003499{
3500 struct server *sv;
Willy Tarreau4e46b622016-11-23 16:50:48 +01003501
3502 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3503 return 1;
3504
3505 sv = cli_find_server(appctx, args[3]);
3506 if (!sv)
3507 return 1;
3508
3509 /* kill all the stream that are on this server */
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003510 HA_SPIN_LOCK(SERVER_LOCK, &sv->lock);
Willy Tarreaud9e26a72019-11-14 16:37:16 +01003511 srv_shutdown_streams(sv, SF_ERR_KILLED);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003512 HA_SPIN_UNLOCK(SERVER_LOCK, &sv->lock);
Willy Tarreau4e46b622016-11-23 16:50:48 +01003513 return 1;
3514}
3515
William Lallemand4c5b4d52016-11-21 08:51:11 +01003516/* register cli keywords */
3517static struct cli_kw_list cli_kws = {{ },{
3518 { { "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 +01003519 { { "shutdown", "session", NULL }, "shutdown session : kill a specific session", cli_parse_shutdown_session, NULL, NULL },
Willy Tarreau4e46b622016-11-23 16:50:48 +01003520 { { "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 +01003521 {{},}
3522}};
3523
Willy Tarreau0108d902018-11-25 19:14:37 +01003524INITCALL1(STG_REGISTER, cli_register_kw, &cli_kws);
3525
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003526/* main configuration keyword registration. */
3527static struct action_kw_list stream_tcp_keywords = { ILH, {
3528 { "use-service", stream_parse_use_service },
3529 { /* END */ }
3530}};
3531
Willy Tarreau0108d902018-11-25 19:14:37 +01003532INITCALL1(STG_REGISTER, tcp_req_cont_keywords_register, &stream_tcp_keywords);
3533
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003534static struct action_kw_list stream_http_keywords = { ILH, {
3535 { "use-service", stream_parse_use_service },
3536 { /* END */ }
3537}};
3538
Willy Tarreau0108d902018-11-25 19:14:37 +01003539INITCALL1(STG_REGISTER, http_req_keywords_register, &stream_http_keywords);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003540
Amaury Denoyellef7719a22020-12-10 13:43:58 +01003541static int smp_fetch_cur_server_timeout(const struct arg *args, struct sample *smp, const char *km, void *private)
3542{
3543 smp->flags = SMP_F_VOL_TXN;
3544 smp->data.type = SMP_T_SINT;
3545 if (!smp->strm)
3546 return 0;
3547
3548 smp->data.u.sint = TICKS_TO_MS(smp->strm->res.rto);
3549 return 1;
3550}
3551
3552static int smp_fetch_cur_tunnel_timeout(const struct arg *args, struct sample *smp, const char *km, void *private)
3553{
3554 smp->flags = SMP_F_VOL_TXN;
3555 smp->data.type = SMP_T_SINT;
3556 if (!smp->strm)
3557 return 0;
3558
3559 smp->data.u.sint = TICKS_TO_MS(smp->strm->tunnel_timeout);
3560 return 1;
3561}
3562
Amaury Denoyelle12bada52020-12-10 13:43:57 +01003563/* Note: must not be declared <const> as its list will be overwritten.
3564 * Please take care of keeping this list alphabetically sorted.
3565 */
3566static struct sample_fetch_kw_list smp_kws = {ILH, {
Amaury Denoyellef7719a22020-12-10 13:43:58 +01003567 { "cur_server_timeout", smp_fetch_cur_server_timeout, 0, NULL, SMP_T_SINT, SMP_USE_BKEND, },
3568 { "cur_tunnel_timeout", smp_fetch_cur_tunnel_timeout, 0, NULL, SMP_T_SINT, SMP_USE_BKEND, },
Amaury Denoyelle12bada52020-12-10 13:43:57 +01003569 { NULL, NULL, 0, 0, 0 },
3570}};
3571
3572INITCALL1(STG_REGISTER, sample_register_fetches, &smp_kws);
3573
Willy Tarreaubaaee002006-06-26 02:48:02 +02003574/*
3575 * Local variables:
3576 * c-indent-level: 8
3577 * c-basic-offset: 8
3578 * End:
3579 */