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Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
Willy Tarreau87b09662015-04-03 00:22:06 +02002 * Stream management functions.
Willy Tarreaubaaee002006-06-26 02:48:02 +02003 *
Willy Tarreaud28c3532012-04-19 19:28:33 +02004 * Copyright 2000-2012 Willy Tarreau <w@1wt.eu>
Willy Tarreaubaaee002006-06-26 02:48:02 +02005 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 *
11 */
12
13#include <stdlib.h>
Willy Tarreau81f9aa32010-06-01 17:45:26 +020014#include <unistd.h>
15#include <fcntl.h>
Willy Tarreaue3ba5f02006-06-29 18:54:54 +020016
Willy Tarreaua264d962020-06-04 22:29:18 +020017#include <import/ebistree.h>
18
Willy Tarreaudcc048a2020-06-04 19:11:43 +020019#include <haproxy/acl.h>
Willy Tarreau122eba92020-06-04 10:15:32 +020020#include <haproxy/action.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020021#include <haproxy/activity.h>
22#include <haproxy/api.h>
Willy Tarreau3f0f82e2020-06-04 19:42:41 +020023#include <haproxy/applet.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020024#include <haproxy/arg.h>
Willy Tarreau49801602020-06-04 22:50:02 +020025#include <haproxy/backend.h>
Willy Tarreau278161c2020-06-04 11:18:28 +020026#include <haproxy/capture.h>
Willy Tarreau6be78492020-06-05 00:00:29 +020027#include <haproxy/cfgparse.h>
Willy Tarreauf1d32c42020-06-04 21:07:02 +020028#include <haproxy/channel.h>
Willy Tarreau4aa573d2020-06-04 18:21:56 +020029#include <haproxy/check.h>
Willy Tarreau83487a82020-06-04 20:19:54 +020030#include <haproxy/cli.h>
Willy Tarreau7ea393d2020-06-04 18:02:10 +020031#include <haproxy/connection.h>
Willy Tarreau3afc4c42020-06-03 18:23:19 +020032#include <haproxy/dict.h>
Willy Tarreaueb92deb2020-06-04 10:53:16 +020033#include <haproxy/dns.h>
Willy Tarreau2741c8c2020-06-02 11:28:02 +020034#include <haproxy/dynbuf.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020035#include <haproxy/fd.h>
Willy Tarreauc7babd82020-06-04 21:29:29 +020036#include <haproxy/filters.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020037#include <haproxy/freq_ctr.h>
Willy Tarreau762d7a52020-06-04 11:23:07 +020038#include <haproxy/frontend.h>
Willy Tarreauf268ee82020-06-04 17:05:57 +020039#include <haproxy/global.h>
Willy Tarreau86416052020-06-04 09:20:54 +020040#include <haproxy/hlua.h>
Willy Tarreauc2b1ff02020-06-04 21:21:03 +020041#include <haproxy/http_ana.h>
Willy Tarreauc761f842020-06-04 11:40:28 +020042#include <haproxy/http_rules.h>
Willy Tarreau16f958c2020-06-03 08:44:35 +020043#include <haproxy/htx.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020044#include <haproxy/istbuf.h>
Willy Tarreauaeed4a82020-06-04 22:01:04 +020045#include <haproxy/log.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020046#include <haproxy/pipe.h>
Willy Tarreaud0ef4392020-06-02 09:38:52 +020047#include <haproxy/pool.h>
Willy Tarreaua264d962020-06-04 22:29:18 +020048#include <haproxy/proxy.h>
Willy Tarreaua55c4542020-06-04 22:59:39 +020049#include <haproxy/queue.h>
Willy Tarreau1e56f922020-06-04 23:20:13 +020050#include <haproxy/server.h>
Amaury Denoyelle12bada52020-12-10 13:43:57 +010051#include <haproxy/sample.h>
Willy Tarreau48d25b32020-06-04 18:58:52 +020052#include <haproxy/session.h>
Willy Tarreau2eec9b52020-06-04 19:58:55 +020053#include <haproxy/stats-t.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020054#include <haproxy/stick_table.h>
Willy Tarreaudfd3de82020-06-04 23:46:14 +020055#include <haproxy/stream.h>
Willy Tarreau5e539c92020-06-04 20:45:39 +020056#include <haproxy/stream_interface.h>
Willy Tarreaucea0e1b2020-06-04 17:25:40 +020057#include <haproxy/task.h>
Willy Tarreau8b550af2020-06-04 17:42:48 +020058#include <haproxy/tcp_rules.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020059#include <haproxy/thread.h>
Willy Tarreaudfd3de82020-06-04 23:46:14 +020060#include <haproxy/trace.h>
Willy Tarreaua1718922020-06-04 16:25:31 +020061#include <haproxy/vars.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020062
Willy Tarreaubaaee002006-06-26 02:48:02 +020063
Willy Tarreau8ceae722018-11-26 11:58:30 +010064DECLARE_POOL(pool_head_stream, "stream", sizeof(struct stream));
Tim Duesterhus127a74d2020-02-28 15:13:33 +010065DECLARE_POOL(pool_head_uniqueid, "uniqueid", UNIQUEID_LEN);
Willy Tarreau8ceae722018-11-26 11:58:30 +010066
Willy Tarreaub6b3df32018-11-26 16:31:20 +010067struct list streams = LIST_HEAD_INIT(streams);
Willy Tarreau86abe442018-11-25 20:12:18 +010068__decl_spinlock(streams_lock);
Willy Tarreaubaaee002006-06-26 02:48:02 +020069
Thierry FOURNIER5a363e72015-09-27 19:29:33 +020070/* List of all use-service keywords. */
71static struct list service_keywords = LIST_HEAD_INIT(service_keywords);
72
Willy Tarreau5790eb02017-08-28 17:18:36 +020073
Christopher Fauleteea8fc72019-11-05 16:18:10 +010074/* trace source and events */
75static void strm_trace(enum trace_level level, uint64_t mask,
76 const struct trace_source *src,
77 const struct ist where, const struct ist func,
78 const void *a1, const void *a2, const void *a3, const void *a4);
79
80/* The event representation is split like this :
81 * strm - stream
82 * si - stream interface
83 * http - http analyzis
84 * tcp - tcp analyzis
85 *
86 * STRM_EV_* macros are defined in <proto/stream.h>
87 */
88static const struct trace_event strm_trace_events[] = {
89 { .mask = STRM_EV_STRM_NEW, .name = "strm_new", .desc = "new stream" },
90 { .mask = STRM_EV_STRM_FREE, .name = "strm_free", .desc = "release stream" },
91 { .mask = STRM_EV_STRM_ERR, .name = "strm_err", .desc = "error during stream processing" },
92 { .mask = STRM_EV_STRM_ANA, .name = "strm_ana", .desc = "stream analyzers" },
93 { .mask = STRM_EV_STRM_PROC, .name = "strm_proc", .desc = "stream processing" },
94
95 { .mask = STRM_EV_SI_ST, .name = "si_state", .desc = "processing stream-interface states" },
96
97 { .mask = STRM_EV_HTTP_ANA, .name = "http_ana", .desc = "HTTP analyzers" },
98 { .mask = STRM_EV_HTTP_ERR, .name = "http_err", .desc = "error during HTTP analyzis" },
99
100 { .mask = STRM_EV_TCP_ANA, .name = "tcp_ana", .desc = "TCP analyzers" },
101 { .mask = STRM_EV_TCP_ERR, .name = "tcp_err", .desc = "error during TCP analyzis" },
102 {}
103};
104
105static const struct name_desc strm_trace_lockon_args[4] = {
106 /* arg1 */ { /* already used by the stream */ },
107 /* arg2 */ { },
108 /* arg3 */ { },
109 /* arg4 */ { }
110};
111
112static const struct name_desc strm_trace_decoding[] = {
113#define STRM_VERB_CLEAN 1
114 { .name="clean", .desc="only user-friendly stuff, generally suitable for level \"user\"" },
115#define STRM_VERB_MINIMAL 2
116 { .name="minimal", .desc="report info on stream and stream-interfaces" },
117#define STRM_VERB_SIMPLE 3
118 { .name="simple", .desc="add info on request and response channels" },
119#define STRM_VERB_ADVANCED 4
120 { .name="advanced", .desc="add info on channel's buffer for data and developer levels only" },
121#define STRM_VERB_COMPLETE 5
122 { .name="complete", .desc="add info on channel's buffer" },
123 { /* end */ }
124};
125
126struct trace_source trace_strm = {
127 .name = IST("stream"),
128 .desc = "Applicative stream",
129 .arg_def = TRC_ARG1_STRM, // TRACE()'s first argument is always a stream
130 .default_cb = strm_trace,
131 .known_events = strm_trace_events,
132 .lockon_args = strm_trace_lockon_args,
133 .decoding = strm_trace_decoding,
134 .report_events = ~0, // report everything by default
135};
136
137#define TRACE_SOURCE &trace_strm
138INITCALL1(STG_REGISTER, trace_register_source, TRACE_SOURCE);
139
140/* the stream traces always expect that arg1, if non-null, is of a stream (from
141 * which we can derive everything), that arg2, if non-null, is an http
142 * transaction, that arg3, if non-null, is an http message.
143 */
144static void strm_trace(enum trace_level level, uint64_t mask, const struct trace_source *src,
145 const struct ist where, const struct ist func,
146 const void *a1, const void *a2, const void *a3, const void *a4)
147{
148 const struct stream *s = a1;
149 const struct http_txn *txn = a2;
150 const struct http_msg *msg = a3;
151 struct task *task;
152 const struct stream_interface *si_f, *si_b;
153 const struct channel *req, *res;
154 struct htx *htx;
155
156 if (!s || src->verbosity < STRM_VERB_CLEAN)
157 return;
158
159 task = s->task;
160 si_f = &s->si[0];
161 si_b = &s->si[1];
162 req = &s->req;
163 res = &s->res;
164 htx = (msg ? htxbuf(&msg->chn->buf) : NULL);
165
166 /* General info about the stream (htx/tcp, id...) */
167 chunk_appendf(&trace_buf, " : [%u,%s]",
168 s->uniq_id, ((s->flags & SF_HTX) ? "HTX" : "TCP"));
Tim Duesterhusa17e6622020-03-05 20:19:02 +0100169 if (isttest(s->unique_id)) {
170 chunk_appendf(&trace_buf, " id=");
171 b_putist(&trace_buf, s->unique_id);
172 }
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100173
174 /* Front and back stream-int state */
175 chunk_appendf(&trace_buf, " SI=(%s,%s)",
176 si_state_str(si_f->state), si_state_str(si_b->state));
177
178 /* If txn is defined, HTTP req/rep states */
179 if (txn)
180 chunk_appendf(&trace_buf, " HTTP=(%s,%s)",
181 h1_msg_state_str(txn->req.msg_state), h1_msg_state_str(txn->rsp.msg_state));
182 if (msg)
183 chunk_appendf(&trace_buf, " %s", ((msg->chn->flags & CF_ISRESP) ? "RESPONSE" : "REQUEST"));
184
185 if (src->verbosity == STRM_VERB_CLEAN)
186 return;
187
188 /* If msg defined, display status-line if possible (verbosity > MINIMAL) */
189 if (src->verbosity > STRM_VERB_MINIMAL && htx && htx_nbblks(htx)) {
190 const struct htx_blk *blk = htx_get_head_blk(htx);
191 const struct htx_sl *sl = htx_get_blk_ptr(htx, blk);
192 enum htx_blk_type type = htx_get_blk_type(blk);
193
194 if (type == HTX_BLK_REQ_SL || type == HTX_BLK_RES_SL)
195 chunk_appendf(&trace_buf, " - \"%.*s %.*s %.*s\"",
196 HTX_SL_P1_LEN(sl), HTX_SL_P1_PTR(sl),
197 HTX_SL_P2_LEN(sl), HTX_SL_P2_PTR(sl),
198 HTX_SL_P3_LEN(sl), HTX_SL_P3_PTR(sl));
199 }
200
201
202 /* If txn defined info about HTTP msgs, otherwise info about SI. */
203 if (txn) {
204 chunk_appendf(&trace_buf, " - t=%p s=(%p,0x%08x) txn.flags=0x%08x, http.flags=(0x%08x,0x%08x) status=%d",
205 task, s, s->flags, txn->flags, txn->req.flags, txn->rsp.flags, txn->status);
206 }
207 else {
208 chunk_appendf(&trace_buf, " - t=%p s=(%p,0x%08x) si_f=(%p,0x%08x,0x%x) si_b=(%p,0x%08x,0x%x) retries=%d",
209 task, s, s->flags, si_f, si_f->flags, si_f->err_type,
210 si_b, si_b->flags, si_b->err_type, si_b->conn_retries);
211 }
212
213 if (src->verbosity == STRM_VERB_MINIMAL)
214 return;
215
216
217 /* If txn defined, don't display all channel info */
218 if (src->verbosity == STRM_VERB_SIMPLE || txn) {
219 chunk_appendf(&trace_buf, " req=(%p .fl=0x%08x .exp(r,w,a)=(%u,%u,%u))",
220 req, req->flags, req->rex, req->wex, req->analyse_exp);
221 chunk_appendf(&trace_buf, " res=(%p .fl=0x%08x .exp(r,w,a)=(%u,%u,%u))",
222 res, res->flags, res->rex, res->wex, res->analyse_exp);
223 }
224 else {
225 chunk_appendf(&trace_buf, " req=(%p .fl=0x%08x .ana=0x%08x .exp(r,w,a)=(%u,%u,%u) .o=%lu .tot=%llu .to_fwd=%u)",
226 req, req->flags, req->analysers, req->rex, req->wex, req->analyse_exp,
Willy Tarreaue18f53e2019-11-27 15:41:31 +0100227 (long)req->output, req->total, req->to_forward);
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100228 chunk_appendf(&trace_buf, " res=(%p .fl=0x%08x .ana=0x%08x .exp(r,w,a)=(%u,%u,%u) .o=%lu .tot=%llu .to_fwd=%u)",
229 res, res->flags, res->analysers, res->rex, res->wex, res->analyse_exp,
Willy Tarreaue18f53e2019-11-27 15:41:31 +0100230 (long)res->output, res->total, res->to_forward);
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100231 }
232
233 if (src->verbosity == STRM_VERB_SIMPLE ||
234 (src->verbosity == STRM_VERB_ADVANCED && src->level < TRACE_LEVEL_DATA))
235 return;
236
237 /* channels' buffer info */
238 if (s->flags & SF_HTX) {
239 struct htx *rqhtx = htxbuf(&req->buf);
240 struct htx *rphtx = htxbuf(&res->buf);
241
242 chunk_appendf(&trace_buf, " htx=(%u/%u#%u, %u/%u#%u)",
243 rqhtx->data, rqhtx->size, htx_nbblks(rqhtx),
244 rphtx->data, rphtx->size, htx_nbblks(rphtx));
245 }
246 else {
247 chunk_appendf(&trace_buf, " buf=(%u@%p+%u/%u, %u@%p+%u/%u)",
248 (unsigned int)b_data(&req->buf), b_orig(&req->buf),
249 (unsigned int)b_head_ofs(&req->buf), (unsigned int)b_size(&req->buf),
250 (unsigned int)b_data(&req->buf), b_orig(&req->buf),
251 (unsigned int)b_head_ofs(&req->buf), (unsigned int)b_size(&req->buf));
252 }
253
254 /* If msg defined, display htx info if defined (level > USER) */
255 if (src->level > TRACE_LEVEL_USER && htx && htx_nbblks(htx)) {
256 int full = 0;
257
258 /* Full htx info (level > STATE && verbosity > SIMPLE) */
259 if (src->level > TRACE_LEVEL_STATE) {
260 if (src->verbosity == STRM_VERB_COMPLETE)
261 full = 1;
262 }
263
264 chunk_memcat(&trace_buf, "\n\t", 2);
265 htx_dump(&trace_buf, htx, full);
266 }
267}
268
Willy Tarreau5790eb02017-08-28 17:18:36 +0200269/* Create a new stream for connection <conn>. Return < 0 on error. This is only
270 * valid right after the handshake, before the connection's data layer is
Christopher Faulet16df1782020-12-04 16:47:41 +0100271 * initialized, because it relies on the session to be in conn->owner. On
272 * success, <input> buffer is transferred to the stream and thus points to
273 * BUF_NULL. On error, it is unchanged and it is the caller responsibility to
274 * release it.
Willy Tarreau5790eb02017-08-28 17:18:36 +0200275 */
Christopher Faulet26256f82020-09-14 11:40:13 +0200276int stream_create_from_cs(struct conn_stream *cs, struct buffer *input)
Willy Tarreau5790eb02017-08-28 17:18:36 +0200277{
278 struct stream *strm;
279
Christopher Faulet26256f82020-09-14 11:40:13 +0200280 strm = stream_new(cs->conn->owner, &cs->obj_type, input);
Willy Tarreau5790eb02017-08-28 17:18:36 +0200281 if (strm == NULL)
282 return -1;
283
284 task_wakeup(strm->task, TASK_WOKEN_INIT);
285 return 0;
286}
287
Willy Tarreaub882dd82018-11-06 15:50:21 +0100288/* Callback used to wake up a stream when an input buffer is available. The
289 * stream <s>'s stream interfaces are checked for a failed buffer allocation
Willy Tarreaud0f5bbc2018-11-14 11:10:26 +0100290 * as indicated by the presence of the SI_FL_RXBLK_ROOM flag and the lack of a
Willy Tarreaub882dd82018-11-06 15:50:21 +0100291 * buffer, and and input buffer is assigned there (at most one). The function
292 * returns 1 and wakes the stream up if a buffer was taken, otherwise zero.
293 * It's designed to be called from __offer_buffer().
294 */
295int stream_buf_available(void *arg)
296{
297 struct stream *s = arg;
298
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100299 if (!s->req.buf.size && !s->req.pipe && (s->si[0].flags & SI_FL_RXBLK_BUFF) &&
Willy Tarreaub882dd82018-11-06 15:50:21 +0100300 b_alloc_margin(&s->req.buf, global.tune.reserved_bufs))
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100301 si_rx_buff_rdy(&s->si[0]);
302 else if (!s->res.buf.size && !s->res.pipe && (s->si[1].flags & SI_FL_RXBLK_BUFF) &&
Willy Tarreaub882dd82018-11-06 15:50:21 +0100303 b_alloc_margin(&s->res.buf, 0))
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100304 si_rx_buff_rdy(&s->si[1]);
Willy Tarreaub882dd82018-11-06 15:50:21 +0100305 else
306 return 0;
307
308 task_wakeup(s->task, TASK_WOKEN_RES);
309 return 1;
310
311}
312
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200313/* This function is called from the session handler which detects the end of
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200314 * handshake, in order to complete initialization of a valid stream. It must be
Joseph Herlant4cc8d0d2018-11-15 09:14:14 -0800315 * called with a completely initialized session. It returns the pointer to
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200316 * the newly created stream, or NULL in case of fatal error. The client-facing
Willy Tarreau87787ac2017-08-28 16:22:54 +0200317 * end point is assigned to <origin>, which must be valid. The stream's task
318 * is configured with a nice value inherited from the listener's nice if any.
319 * The task's context is set to the new stream, and its function is set to
Christopher Faulet16df1782020-12-04 16:47:41 +0100320 * process_stream(). Target and analysers are null. <input> is used as input
321 * buffer for the request channel and may contain data. On success, it is
322 * transfer to the stream and <input> is set to BUF_NULL. On error, <input>
323 * buffer is unchanged and it is the caller responsibility to release it.
Willy Tarreau2542b532012-08-31 16:01:23 +0200324 */
Christopher Faulet26256f82020-09-14 11:40:13 +0200325struct stream *stream_new(struct session *sess, enum obj_type *origin, struct buffer *input)
Willy Tarreau2542b532012-08-31 16:01:23 +0200326{
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200327 struct stream *s;
Willy Tarreau87787ac2017-08-28 16:22:54 +0200328 struct task *t;
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200329 struct conn_stream *cs = objt_cs(origin);
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200330 struct appctx *appctx = objt_appctx(origin);
Willy Tarreau2542b532012-08-31 16:01:23 +0200331
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100332 DBG_TRACE_ENTER(STRM_EV_STRM_NEW);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100333 if (unlikely((s = pool_alloc(pool_head_stream)) == NULL))
Willy Tarreau87787ac2017-08-28 16:22:54 +0200334 goto out_fail_alloc;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200335
336 /* minimum stream initialization required for an embryonic stream is
337 * fairly low. We need very little to execute L4 ACLs, then we need a
338 * task to make the client-side connection live on its own.
339 * - flags
340 * - stick-entry tracking
341 */
342 s->flags = 0;
Willy Tarreaufb9f5842015-04-05 18:19:23 +0200343 s->logs.logwait = sess->fe->to_log;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200344 s->logs.level = 0;
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200345 tv_zero(&s->logs.tv_request);
346 s->logs.t_queue = -1;
347 s->logs.t_connect = -1;
348 s->logs.t_data = -1;
349 s->logs.t_close = 0;
350 s->logs.bytes_in = s->logs.bytes_out = 0;
Patrick Hemmerffe5e8c2018-05-11 12:52:31 -0400351 s->logs.prx_queue_pos = 0; /* we get the number of pending conns before us */
352 s->logs.srv_queue_pos = 0; /* we will get this number soon */
Baptiste Assmann333939c2019-01-21 08:34:50 +0100353 s->obj_type = OBJ_TYPE_STREAM;
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200354
Christopher Faulet15e525f2020-09-30 14:03:54 +0200355 s->logs.accept_date = sess->accept_date;
356 s->logs.tv_accept = sess->tv_accept;
357 s->logs.t_handshake = sess->t_handshake;
Christopher Faulet7a6c5132020-09-30 13:49:56 +0200358 s->logs.t_idle = sess->t_idle;
Christopher Fauletb3484d62018-11-29 15:19:05 +0100359
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200360 /* default logging function */
361 s->do_log = strm_log;
362
363 /* default error reporting function, may be changed by analysers */
364 s->srv_error = default_srv_error;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200365
366 /* Initialise the current rule list pointer to NULL. We are sure that
367 * any rulelist match the NULL pointer.
368 */
369 s->current_rule_list = NULL;
Remi Gacogne7fb9de22015-07-22 17:10:58 +0200370 s->current_rule = NULL;
Christopher Faulet2747fbb2020-07-28 11:56:13 +0200371 s->rules_exp = TICK_ETERNITY;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200372
Willy Tarreaua68f7622015-09-21 17:48:24 +0200373 /* Copy SC counters for the stream. We don't touch refcounts because
374 * any reference we have is inherited from the session. Since the stream
375 * doesn't exist without the session, the session's existence guarantees
376 * we don't lose the entry. During the store operation, the stream won't
377 * touch these ones.
Thierry FOURNIER827752e2015-08-18 11:34:18 +0200378 */
Thierry FOURNIERc8fdb982015-08-16 12:03:39 +0200379 memcpy(s->stkctr, sess->stkctr, sizeof(s->stkctr));
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200380
381 s->sess = sess;
382 s->si[0].flags = SI_FL_NONE;
383 s->si[1].flags = SI_FL_ISBACK;
384
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100385 s->uniq_id = _HA_ATOMIC_XADD(&global.req_count, 1);
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200386
Willy Tarreau87b09662015-04-03 00:22:06 +0200387 /* OK, we're keeping the stream, so let's properly initialize the stream */
Willy Tarreau2542b532012-08-31 16:01:23 +0200388 LIST_INIT(&s->back_refs);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100389
Willy Tarreau21046592020-02-26 10:39:36 +0100390 MT_LIST_INIT(&s->buffer_wait.list);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100391 s->buffer_wait.target = s;
Willy Tarreaub882dd82018-11-06 15:50:21 +0100392 s->buffer_wait.wakeup_cb = stream_buf_available;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200393
Willy Tarreau2e9c1d22019-04-24 08:28:31 +0200394 s->call_rate.curr_sec = s->call_rate.curr_ctr = s->call_rate.prev_ctr = 0;
William Lallemandcf62f7e2018-10-26 14:47:40 +0200395 s->pcli_next_pid = 0;
William Lallemandebf61802018-12-11 16:10:57 +0100396 s->pcli_flags = 0;
Tim Duesterhusa17e6622020-03-05 20:19:02 +0100397 s->unique_id = IST_NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200398
Emeric Brunc60def82017-09-27 14:59:38 +0200399 if ((t = task_new(tid_bit)) == NULL)
Willy Tarreau87787ac2017-08-28 16:22:54 +0200400 goto out_fail_alloc;
401
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200402 s->task = t;
Christopher Faulet9d810ca2016-12-08 22:33:52 +0100403 s->pending_events = 0;
Willy Tarreaud1769b82015-04-06 00:25:48 +0200404 t->process = process_stream;
Willy Tarreau2542b532012-08-31 16:01:23 +0200405 t->context = s;
406 t->expire = TICK_ETERNITY;
Willy Tarreau87787ac2017-08-28 16:22:54 +0200407 if (sess->listener)
408 t->nice = sess->listener->nice;
Willy Tarreau2542b532012-08-31 16:01:23 +0200409
Willy Tarreau87b09662015-04-03 00:22:06 +0200410 /* Note: initially, the stream's backend points to the frontend.
Willy Tarreau2542b532012-08-31 16:01:23 +0200411 * This changes later when switching rules are executed or
412 * when the default backend is assigned.
413 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200414 s->be = sess->fe;
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200415 s->req_cap = NULL;
416 s->res_cap = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200417
Willy Tarreauebcd4842015-06-19 11:59:02 +0200418 /* Initialise all the variables contexts even if not used.
419 * This permits to prune these contexts without errors.
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200420 */
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200421 vars_init(&s->vars_txn, SCOPE_TXN);
422 vars_init(&s->vars_reqres, SCOPE_REQ);
423
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200424 /* this part should be common with other protocols */
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200425 if (si_reset(&s->si[0]) < 0)
426 goto out_fail_alloc;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200427 si_set_state(&s->si[0], SI_ST_EST);
Hongbo Longe39683c2017-03-10 18:41:51 +0100428 s->si[0].hcto = sess->fe->timeout.clientfin;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200429
Christopher Faulet0e160ff2019-04-03 10:01:07 +0200430 if (cs && cs->conn->mux) {
431 if (cs->conn->mux->flags & MX_FL_CLEAN_ABRT)
432 s->si[0].flags |= SI_FL_CLEAN_ABRT;
433 if (cs->conn->mux->flags & MX_FL_HTX)
434 s->flags |= SF_HTX;
435 }
Christopher Faulet3494c632019-07-15 14:58:26 +0200436 /* Set SF_HTX flag for HTTP frontends. */
437 if (sess->fe->mode == PR_MODE_HTTP)
Christopher Faulet0e160ff2019-04-03 10:01:07 +0200438 s->flags |= SF_HTX;
Willy Tarreau984fca92017-12-20 16:31:43 +0100439
Willy Tarreau1f52bb22015-04-04 14:28:46 +0200440 /* attach the incoming connection to the stream interface now. */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200441 if (cs)
442 si_attach_cs(&s->si[0], cs);
Willy Tarreau470280e2015-04-05 01:33:13 +0200443 else if (appctx)
444 si_attach_appctx(&s->si[0], appctx);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200445
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200446 if (likely(sess->fe->options2 & PR_O2_INDEPSTR))
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200447 s->si[0].flags |= SI_FL_INDEP_STR;
448
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200449 /* pre-initialize the other side's stream interface to an INIT state. The
450 * callbacks will be initialized before attempting to connect.
451 */
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200452 if (si_reset(&s->si[1]) < 0)
453 goto out_fail_alloc_si1;
Hongbo Longe39683c2017-03-10 18:41:51 +0100454 s->si[1].hcto = TICK_ETERNITY;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200455
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200456 if (likely(sess->fe->options2 & PR_O2_INDEPSTR))
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200457 s->si[1].flags |= SI_FL_INDEP_STR;
458
Willy Tarreau87b09662015-04-03 00:22:06 +0200459 stream_init_srv_conn(s);
Willy Tarreau9b82d942016-12-05 00:26:31 +0100460 s->target = sess->listener ? sess->listener->default_target : NULL;
Willy Tarreau90420602019-07-18 15:09:57 +0200461 s->target_addr = NULL;
Willy Tarreau9b82d942016-12-05 00:26:31 +0100462
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200463 s->pend_pos = NULL;
Patrick Hemmer268a7072018-05-11 12:52:31 -0400464 s->priority_class = 0;
465 s->priority_offset = 0;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200466
467 /* init store persistence */
468 s->store_count = 0;
469
Christopher Faulet16df1782020-12-04 16:47:41 +0100470 channel_init(&s->req);
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100471 s->req.flags |= CF_READ_ATTACHED; /* the producer is already connected */
Willy Tarreau9b82d942016-12-05 00:26:31 +0100472 s->req.analysers = sess->listener ? sess->listener->analysers : 0;
Willy Tarreaue223e3b2017-11-18 15:39:10 +0100473
474 if (!sess->fe->fe_req_ana) {
475 channel_auto_connect(&s->req); /* don't wait to establish connection */
476 channel_auto_close(&s->req); /* let the producer forward close requests */
477 }
Willy Tarreauc8815ef2015-04-05 18:15:59 +0200478
479 s->req.rto = sess->fe->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100480 s->req.wto = TICK_ETERNITY;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100481 s->req.rex = TICK_ETERNITY;
482 s->req.wex = TICK_ETERNITY;
483 s->req.analyse_exp = TICK_ETERNITY;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200484
Christopher Faulet16df1782020-12-04 16:47:41 +0100485 channel_init(&s->res);
Willy Tarreauef573c02014-11-28 14:17:09 +0100486 s->res.flags |= CF_ISRESP;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100487 s->res.analysers = 0;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200488
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200489 if (sess->fe->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100490 s->req.flags |= CF_NEVER_WAIT;
491 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200492 }
493
Willy Tarreauc8815ef2015-04-05 18:15:59 +0200494 s->res.wto = sess->fe->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100495 s->res.rto = TICK_ETERNITY;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100496 s->res.rex = TICK_ETERNITY;
497 s->res.wex = TICK_ETERNITY;
498 s->res.analyse_exp = TICK_ETERNITY;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200499
Willy Tarreaueee5b512015-04-03 23:46:31 +0200500 s->txn = NULL;
Thierry FOURNIER2c8b54e2016-12-17 12:45:32 +0100501 s->hlua = NULL;
Thierry FOURNIER65f34c62015-02-16 20:11:43 +0100502
Frédéric Lécaillebed883a2019-04-23 17:26:33 +0200503 s->dns_ctx.dns_requester = NULL;
504 s->dns_ctx.hostname_dn = NULL;
505 s->dns_ctx.hostname_dn_len = 0;
506 s->dns_ctx.parent = NULL;
507
Amaury Denoyellefb504432020-12-10 13:43:53 +0100508 s->tunnel_timeout = TICK_ETERNITY;
509
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100510 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200511 LIST_ADDQ(&streams, &s->list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100512 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200513
Christopher Faulet92d36382015-11-05 13:35:03 +0100514 if (flt_stream_init(s) < 0 || flt_stream_start(s) < 0)
Christopher Fauletd7c91962015-04-30 11:48:27 +0200515 goto out_fail_accept;
516
Olivier Houcharda254a372019-04-05 15:30:12 +0200517 s->si[1].l7_buffer = BUF_NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200518 /* finish initialization of the accepted file descriptor */
Olivier Houchard53216e72018-10-10 15:46:36 +0200519 if (appctx)
Willy Tarreau0cd3bd62018-11-06 18:46:37 +0100520 si_want_get(&s->si[0]);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200521
Willy Tarreaufb9f5842015-04-05 18:19:23 +0200522 if (sess->fe->accept && sess->fe->accept(s) < 0)
Willy Tarreauc5a7ff42015-04-05 11:52:08 +0200523 goto out_fail_accept;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200524
Christopher Faulet16df1782020-12-04 16:47:41 +0100525 if (!b_is_null(input)) {
526 /* Xfer the input buffer to the request channel. <input> will
527 * than point to BUF_NULL. From this point, it is the stream
528 * responsibility to release it.
529 */
530 s->req.buf = *input;
531 *input = BUF_NULL;
Christopher Fauletc43fca02020-12-04 17:22:49 +0100532 s->req.total = (IS_HTX_STRM(s) ? htxbuf(&s->req.buf)->data : b_data(&s->req.buf));
Christopher Faulet16df1782020-12-04 16:47:41 +0100533 s->req.flags |= (s->req.total ? CF_READ_PARTIAL : 0);
534 }
535
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200536 /* it is important not to call the wakeup function directly but to
537 * pass through task_wakeup(), because this one knows how to apply
Emeric Brun5f77fef2017-05-29 15:26:51 +0200538 * priorities to tasks. Using multi thread we must be sure that
539 * stream is fully initialized before calling task_wakeup. So
540 * the caller must handle the task_wakeup
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200541 */
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100542 DBG_TRACE_LEAVE(STRM_EV_STRM_NEW, s);
Willy Tarreau02d86382015-04-05 12:00:52 +0200543 return s;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200544
545 /* Error unrolling */
Willy Tarreauc5a7ff42015-04-05 11:52:08 +0200546 out_fail_accept:
Christopher Faulet92d36382015-11-05 13:35:03 +0100547 flt_stream_release(s, 0);
Olivier Houchard3f795f72019-04-17 22:51:06 +0200548 task_destroy(t);
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200549 tasklet_free(s->si[1].wait_event.tasklet);
Willy Tarreaue5f229e2018-10-15 11:08:55 +0200550 LIST_DEL(&s->list);
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200551out_fail_alloc_si1:
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200552 tasklet_free(s->si[0].wait_event.tasklet);
Willy Tarreau87787ac2017-08-28 16:22:54 +0200553 out_fail_alloc:
Willy Tarreaubafbe012017-11-24 17:34:44 +0100554 pool_free(pool_head_stream, s);
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100555 DBG_TRACE_DEVEL("leaving on error", STRM_EV_STRM_NEW|STRM_EV_STRM_ERR);
Willy Tarreau02d86382015-04-05 12:00:52 +0200556 return NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200557}
558
Willy Tarreaubaaee002006-06-26 02:48:02 +0200559/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200560 * frees the context associated to a stream. It must have been removed first.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200561 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200562static void stream_free(struct stream *s)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200563{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200564 struct session *sess = strm_sess(s);
565 struct proxy *fe = sess->fe;
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100566 struct bref *bref, *back;
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200567 struct conn_stream *cli_cs = objt_cs(s->si[0].end);
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100568 int must_free_sess;
Willy Tarreaua4cda672010-06-06 18:28:49 +0200569 int i;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100570
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100571 DBG_TRACE_POINT(STRM_EV_STRM_FREE, s);
572
Willy Tarreau0ad46fa2019-05-17 14:20:05 +0200573 /* detach the stream from its own task before even releasing it so
574 * that walking over a task list never exhibits a dying stream.
575 */
576 s->task->context = NULL;
577 __ha_barrier_store();
578
Willy Tarreaud0ad4a82018-07-25 11:13:53 +0200579 pendconn_free(s);
Willy Tarreau922a8062008-12-04 09:33:58 +0100580
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100581 if (objt_server(s->target)) { /* there may be requests left pending in queue */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200582 if (s->flags & SF_CURR_SESS) {
583 s->flags &= ~SF_CURR_SESS;
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100584 _HA_ATOMIC_SUB(&__objt_server(s->target)->cur_sess, 1);
Willy Tarreau1e62de62008-11-11 20:20:02 +0100585 }
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100586 if (may_dequeue_tasks(objt_server(s->target), s->be))
587 process_srv_queue(objt_server(s->target));
Willy Tarreau1e62de62008-11-11 20:20:02 +0100588 }
Willy Tarreau922a8062008-12-04 09:33:58 +0100589
Willy Tarreau7c669d72008-06-20 15:04:11 +0200590 if (unlikely(s->srv_conn)) {
Willy Tarreau87b09662015-04-03 00:22:06 +0200591 /* the stream still has a reserved slot on a server, but
Willy Tarreau7c669d72008-06-20 15:04:11 +0200592 * it should normally be only the same as the one above,
593 * so this should not happen in fact.
594 */
595 sess_change_server(s, NULL);
596 }
597
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100598 if (s->req.pipe)
599 put_pipe(s->req.pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100600
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100601 if (s->res.pipe)
602 put_pipe(s->res.pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100603
Willy Tarreaubf883e02014-11-25 21:10:35 +0100604 /* We may still be present in the buffer wait queue */
Willy Tarreau21046592020-02-26 10:39:36 +0100605 if (MT_LIST_ADDED(&s->buffer_wait.list))
606 MT_LIST_DEL(&s->buffer_wait.list);
607
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200608 if (s->req.buf.size || s->res.buf.size) {
Willy Tarreaue0d0b402019-08-08 08:06:27 +0200609 b_free(&s->req.buf);
610 b_free(&s->res.buf);
Olivier Houchard673867c2018-05-25 16:58:52 +0200611 offer_buffers(NULL, tasks_run_queue);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100612 }
Willy Tarreau9b28e032012-10-12 23:49:43 +0200613
Tim Duesterhusa17e6622020-03-05 20:19:02 +0100614 pool_free(pool_head_uniqueid, s->unique_id.ptr);
615 s->unique_id = IST_NULL;
Olivier Houchard32211a12019-02-01 18:10:46 +0100616
Thierry FOURNIER2c8b54e2016-12-17 12:45:32 +0100617 hlua_ctx_destroy(s->hlua);
618 s->hlua = NULL;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200619 if (s->txn)
620 http_end_txn(s);
Willy Tarreau46023632010-01-07 22:51:47 +0100621
Willy Tarreau1e954912012-10-12 17:50:05 +0200622 /* ensure the client-side transport layer is destroyed */
Willy Tarreau32560732017-10-08 11:33:44 +0200623 if (cli_cs)
624 cs_close(cli_cs);
Willy Tarreau1e954912012-10-12 17:50:05 +0200625
Willy Tarreaua4cda672010-06-06 18:28:49 +0200626 for (i = 0; i < s->store_count; i++) {
627 if (!s->store[i].ts)
628 continue;
629 stksess_free(s->store[i].table, s->store[i].ts);
630 s->store[i].ts = NULL;
631 }
632
Willy Tarreaueee5b512015-04-03 23:46:31 +0200633 if (s->txn) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100634 pool_free(pool_head_http_txn, s->txn);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200635 s->txn = NULL;
636 }
637
Baptiste Assmann333939c2019-01-21 08:34:50 +0100638 if (s->dns_ctx.dns_requester) {
Christopher Faulet5098a082020-07-22 11:46:32 +0200639 __decl_thread(struct dns_resolvers *resolvers = s->dns_ctx.parent->arg.dns.resolvers);
640
641 HA_SPIN_LOCK(DNS_LOCK, &resolvers->lock);
Baptiste Assmann333939c2019-01-21 08:34:50 +0100642 free(s->dns_ctx.hostname_dn); s->dns_ctx.hostname_dn = NULL;
643 s->dns_ctx.hostname_dn_len = 0;
644 dns_unlink_resolution(s->dns_ctx.dns_requester);
Christopher Faulet5098a082020-07-22 11:46:32 +0200645 HA_SPIN_UNLOCK(DNS_LOCK, &resolvers->lock);
Baptiste Assmann333939c2019-01-21 08:34:50 +0100646
647 pool_free(dns_requester_pool, s->dns_ctx.dns_requester);
648 s->dns_ctx.dns_requester = NULL;
649 }
650
Christopher Fauletd7c91962015-04-30 11:48:27 +0200651 flt_stream_stop(s);
Christopher Faulet92d36382015-11-05 13:35:03 +0100652 flt_stream_release(s, 0);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200653
Willy Tarreau92fb9832007-10-16 17:34:28 +0200654 if (fe) {
Christopher Faulet59399252019-11-07 14:27:52 +0100655 if (s->req_cap) {
656 struct cap_hdr *h;
657 for (h = fe->req_cap; h; h = h->next)
658 pool_free(h->pool, s->req_cap[h->index]);
659 }
660
661 if (s->res_cap) {
662 struct cap_hdr *h;
663 for (h = fe->rsp_cap; h; h = h->next)
664 pool_free(h->pool, s->res_cap[h->index]);
665 }
666
Willy Tarreaubafbe012017-11-24 17:34:44 +0100667 pool_free(fe->rsp_cap_pool, s->res_cap);
668 pool_free(fe->req_cap_pool, s->req_cap);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200669 }
Willy Tarreau0937bc42009-12-22 15:03:09 +0100670
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200671 /* Cleanup all variable contexts. */
Willy Tarreaucda7f3f2018-10-28 13:44:36 +0100672 if (!LIST_ISEMPTY(&s->vars_txn.head))
673 vars_prune(&s->vars_txn, s->sess, s);
674 if (!LIST_ISEMPTY(&s->vars_reqres.head))
675 vars_prune(&s->vars_reqres, s->sess, s);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200676
Willy Tarreau87b09662015-04-03 00:22:06 +0200677 stream_store_counters(s);
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +0200678
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100679 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100680 list_for_each_entry_safe(bref, back, &s->back_refs, users) {
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100681 /* we have to unlink all watchers. We must not relink them if
Willy Tarreau87b09662015-04-03 00:22:06 +0200682 * this stream was the last one in the list.
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100683 */
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100684 LIST_DEL(&bref->users);
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100685 LIST_INIT(&bref->users);
Willy Tarreau87b09662015-04-03 00:22:06 +0200686 if (s->list.n != &streams)
687 LIST_ADDQ(&LIST_ELEM(s->list.n, struct stream *, list)->back_refs, &bref->users);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100688 bref->ref = s->list.n;
689 }
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100690 LIST_DEL(&s->list);
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100691 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200692
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100693 /* applets do not release session yet */
694 must_free_sess = objt_appctx(sess->origin) && sess->origin == s->si[0].end;
695
Olivier Houchard4fdec7a2018-10-11 17:09:14 +0200696
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200697 si_release_endpoint(&s->si[1]);
698 si_release_endpoint(&s->si[0]);
Willy Tarreaufeb76402015-04-03 14:10:06 +0200699
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200700 tasklet_free(s->si[0].wait_event.tasklet);
701 tasklet_free(s->si[1].wait_event.tasklet);
Olivier Houchardd7bd3e32018-10-18 16:22:02 +0200702
Olivier Houcharda254a372019-04-05 15:30:12 +0200703 b_free(&s->si[1].l7_buffer);
Olivier Houchard25607af2018-11-23 14:50:47 +0100704 if (must_free_sess) {
705 sess->origin = NULL;
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100706 session_free(sess);
Olivier Houchard25607af2018-11-23 14:50:47 +0100707 }
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100708
Willy Tarreau90420602019-07-18 15:09:57 +0200709 sockaddr_free(&s->target_addr);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100710 pool_free(pool_head_stream, s);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200711
712 /* We may want to free the maximum amount of pools if the proxy is stopping */
Willy Tarreauc3914d42020-09-24 08:39:22 +0200713 if (fe && unlikely(fe->disabled)) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100714 pool_flush(pool_head_buffer);
715 pool_flush(pool_head_http_txn);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100716 pool_flush(pool_head_requri);
717 pool_flush(pool_head_capture);
718 pool_flush(pool_head_stream);
719 pool_flush(pool_head_session);
720 pool_flush(pool_head_connection);
721 pool_flush(pool_head_pendconn);
722 pool_flush(fe->req_cap_pool);
723 pool_flush(fe->rsp_cap_pool);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200724 }
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200725}
726
Willy Tarreau656859d2014-11-25 19:46:36 +0100727
Willy Tarreau87b09662015-04-03 00:22:06 +0200728/* Allocates a work buffer for stream <s>. It is meant to be called inside
729 * process_stream(). It will only allocate the side needed for the function
Willy Tarreaubc39a5d2015-04-20 15:52:18 +0200730 * to work fine, which is the response buffer so that an error message may be
731 * built and returned. Response buffers may be allocated from the reserve, this
732 * is critical to ensure that a response may always flow and will never block a
733 * server from releasing a connection. Returns 0 in case of failure, non-zero
734 * otherwise.
Willy Tarreau656859d2014-11-25 19:46:36 +0100735 */
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100736static int stream_alloc_work_buffer(struct stream *s)
Willy Tarreau656859d2014-11-25 19:46:36 +0100737{
Willy Tarreau21046592020-02-26 10:39:36 +0100738 if (MT_LIST_ADDED(&s->buffer_wait.list))
739 MT_LIST_DEL(&s->buffer_wait.list);
Willy Tarreau656859d2014-11-25 19:46:36 +0100740
Willy Tarreaubc39a5d2015-04-20 15:52:18 +0200741 if (b_alloc_margin(&s->res.buf, 0))
Willy Tarreau656859d2014-11-25 19:46:36 +0100742 return 1;
743
Willy Tarreau86891272020-07-10 08:22:26 +0200744 MT_LIST_ADDQ(&buffer_wq, &s->buffer_wait.list);
Willy Tarreau656859d2014-11-25 19:46:36 +0100745 return 0;
746}
747
748/* releases unused buffers after processing. Typically used at the end of the
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100749 * update() functions. It will try to wake up as many tasks/applets as the
750 * number of buffers that it releases. In practice, most often streams are
751 * blocked on a single buffer, so it makes sense to try to wake two up when two
752 * buffers are released at once.
Willy Tarreau656859d2014-11-25 19:46:36 +0100753 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200754void stream_release_buffers(struct stream *s)
Willy Tarreau656859d2014-11-25 19:46:36 +0100755{
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100756 int offer = 0;
Willy Tarreau656859d2014-11-25 19:46:36 +0100757
Willy Tarreau0c7ed5d2018-07-10 09:53:31 +0200758 if (c_size(&s->req) && c_empty(&s->req)) {
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100759 offer = 1;
760 b_free(&s->req.buf);
761 }
Willy Tarreau0c7ed5d2018-07-10 09:53:31 +0200762 if (c_size(&s->res) && c_empty(&s->res)) {
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100763 offer = 1;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100764 b_free(&s->res.buf);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100765 }
Willy Tarreau656859d2014-11-25 19:46:36 +0100766
Willy Tarreaubf883e02014-11-25 21:10:35 +0100767 /* if we're certain to have at least 1 buffer available, and there is
768 * someone waiting, we can wake up a waiter and offer them.
769 */
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100770 if (offer)
Olivier Houchard673867c2018-05-25 16:58:52 +0200771 offer_buffers(s, tasks_run_queue);
Willy Tarreau656859d2014-11-25 19:46:36 +0100772}
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200773
Willy Tarreau87b09662015-04-03 00:22:06 +0200774void stream_process_counters(struct stream *s)
Willy Tarreau30e71012007-11-26 20:15:35 +0100775{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200776 struct session *sess = s->sess;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100777 unsigned long long bytes;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100778 int i;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100779
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100780 bytes = s->req.total - s->logs.bytes_in;
781 s->logs.bytes_in = s->req.total;
782 if (bytes) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100783 _HA_ATOMIC_ADD(&sess->fe->fe_counters.bytes_in, bytes);
784 _HA_ATOMIC_ADD(&s->be->be_counters.bytes_in, bytes);
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100785
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100786 if (objt_server(s->target))
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100787 _HA_ATOMIC_ADD(&objt_server(s->target)->counters.bytes_in, bytes);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200788
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200789 if (sess->listener && sess->listener->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100790 _HA_ATOMIC_ADD(&sess->listener->counters->bytes_in, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200791
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100792 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Christopher Faulet84600632020-10-06 13:52:40 +0200793 if (!stkctr_inc_bytes_in_ctr(&s->stkctr[i], bytes))
794 stkctr_inc_bytes_in_ctr(&sess->stkctr[i], bytes);
Willy Tarreau30e71012007-11-26 20:15:35 +0100795 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100796 }
797
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100798 bytes = s->res.total - s->logs.bytes_out;
799 s->logs.bytes_out = s->res.total;
800 if (bytes) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100801 _HA_ATOMIC_ADD(&sess->fe->fe_counters.bytes_out, bytes);
802 _HA_ATOMIC_ADD(&s->be->be_counters.bytes_out, bytes);
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100803
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100804 if (objt_server(s->target))
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100805 _HA_ATOMIC_ADD(&objt_server(s->target)->counters.bytes_out, bytes);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200806
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200807 if (sess->listener && sess->listener->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100808 _HA_ATOMIC_ADD(&sess->listener->counters->bytes_out, bytes);
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200809
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100810 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Christopher Faulet84600632020-10-06 13:52:40 +0200811 if (!stkctr_inc_bytes_out_ctr(&s->stkctr[i], bytes))
812 stkctr_inc_bytes_out_ctr(&sess->stkctr[i], bytes);
Willy Tarreau30e71012007-11-26 20:15:35 +0100813 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100814 }
815}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200816
Amaury Denoyelleb7150782020-12-10 13:43:51 +0100817int stream_set_timeout(struct stream *s, enum act_timeout_name name, int timeout)
818{
Amaury Denoyelle90d3d882020-12-10 13:43:52 +0100819 switch (name) {
820 case ACT_TIMEOUT_SERVER:
821 s->req.wto = timeout;
822 s->res.rto = timeout;
823 return 1;
824
Amaury Denoyellefb504432020-12-10 13:43:53 +0100825 case ACT_TIMEOUT_TUNNEL:
826 s->tunnel_timeout = timeout;
827 return 1;
828
Amaury Denoyelle90d3d882020-12-10 13:43:52 +0100829 default:
830 return 0;
831 }
Amaury Denoyelleb7150782020-12-10 13:43:51 +0100832}
833
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100834/*
835 * This function handles the transition between the SI_ST_CON state and the
Willy Tarreau85e7d002010-05-31 11:57:51 +0200836 * SI_ST_EST state. It must only be called after switching from SI_ST_CON (or
Willy Tarreau4f283fa2019-06-05 14:34:03 +0200837 * SI_ST_INI or SI_ST_RDY) to SI_ST_EST, but only when a ->proto is defined.
Olivier Houchardaacc4052019-05-21 17:43:50 +0200838 * Note that it will switch the interface to SI_ST_DIS if we already have
839 * the CF_SHUTR flag, it means we were able to forward the request, and
840 * receive the response, before process_stream() had the opportunity to
841 * make the switch from SI_ST_CON to SI_ST_EST. When that happens, we want
Willy Tarreau3a9312a2020-01-09 18:43:15 +0100842 * to go through back_establish() anyway, to make sure the analysers run.
Willy Tarreaud66ed882019-06-05 18:02:04 +0200843 * Timeouts are cleared. Error are reported on the channel so that analysers
844 * can handle them.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100845 */
Willy Tarreau3a9312a2020-01-09 18:43:15 +0100846static void back_establish(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100847{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100848 struct stream_interface *si = &s->si[1];
Willy Tarreaud66ed882019-06-05 18:02:04 +0200849 struct conn_stream *srv_cs = objt_cs(si->end);
850 struct connection *conn = srv_cs ? srv_cs->conn : objt_conn(si->end);
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100851 struct channel *req = &s->req;
852 struct channel *rep = &s->res;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100853
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100854 DBG_TRACE_ENTER(STRM_EV_STRM_PROC|STRM_EV_SI_ST, s);
Willy Tarreaud66ed882019-06-05 18:02:04 +0200855 /* First, centralize the timers information, and clear any irrelevant
856 * timeout.
857 */
Willy Tarreau0e37f1c2013-12-31 23:06:46 +0100858 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreaud66ed882019-06-05 18:02:04 +0200859 si->exp = TICK_ETERNITY;
860 si->flags &= ~SI_FL_EXP;
861
862 /* errors faced after sending data need to be reported */
863 if (si->flags & SI_FL_ERR && req->flags & CF_WROTE_DATA) {
864 /* Don't add CF_WRITE_ERROR if we're here because
865 * early data were rejected by the server, or
866 * http_wait_for_response() will never be called
867 * to send a 425.
868 */
869 if (conn && conn->err_code != CO_ER_SSL_EARLY_FAILED)
870 req->flags |= CF_WRITE_ERROR;
871 rep->flags |= CF_READ_ERROR;
872 si->err_type = SI_ET_DATA_ERR;
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100873 DBG_TRACE_STATE("read/write error", STRM_EV_STRM_PROC|STRM_EV_SI_ST|STRM_EV_STRM_ERR, s);
Willy Tarreaud66ed882019-06-05 18:02:04 +0200874 }
875
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100876 if (objt_server(s->target))
877 health_adjust(objt_server(s->target), HANA_STATUS_L4_OK);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100878
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100879 if (s->be->mode == PR_MODE_TCP) { /* let's allow immediate data connection in this case */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100880 /* if the user wants to log as soon as possible, without counting
881 * bytes from the server, then this is the right moment. */
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200882 if (!LIST_ISEMPTY(&strm_fe(s)->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau66425e32018-07-25 06:55:12 +0200883 /* note: no pend_pos here, session is established */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100884 s->logs.t_close = s->logs.t_connect; /* to get a valid end date */
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100885 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100886 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100887 }
888 else {
Willy Tarreaud81ca042013-12-31 22:33:13 +0100889 rep->flags |= CF_READ_DONTWAIT; /* a single read is enough to get response headers */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100890 }
891
Willy Tarreau0007d0a2018-12-11 18:01:38 +0100892 rep->analysers |= strm_fe(s)->fe_rsp_ana | s->be->be_rsp_ana;
Christopher Faulet309c6412015-12-02 09:57:32 +0100893
Willy Tarreau0007d0a2018-12-11 18:01:38 +0100894 /* Be sure to filter response headers if the backend is an HTTP proxy
895 * and if there are filters attached to the stream. */
896 if (s->be->mode == PR_MODE_HTTP && HAS_FILTERS(s))
897 rep->analysers |= AN_RES_FLT_HTTP_HDRS;
Christopher Faulet309c6412015-12-02 09:57:32 +0100898
Willy Tarreau8bb2ffb2018-11-14 17:54:13 +0100899 si_rx_endp_more(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200900 rep->flags |= CF_READ_ATTACHED; /* producer is now attached */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200901 if (objt_cs(si->end)) {
Amaury Denoyelle90d3d882020-12-10 13:43:52 +0100902 /* real connections have timeouts
903 * if already defined, it means that a set-timeout rule has
904 * been executed so do not overwrite them
905 */
906 if (!tick_isset(req->wto))
907 req->wto = s->be->timeout.server;
908 if (!tick_isset(rep->rto))
909 rep->rto = s->be->timeout.server;
Amaury Denoyellefb504432020-12-10 13:43:53 +0100910 if (!tick_isset(s->tunnel_timeout))
911 s->tunnel_timeout = s->be->timeout.tunnel;
Amaury Denoyelle90d3d882020-12-10 13:43:52 +0100912
Olivier Houchard47e9a1a2018-11-07 17:55:19 +0100913 /* The connection is now established, try to read data from the
914 * underlying layer, and subscribe to recv events. We use a
915 * delayed recv here to give a chance to the data to flow back
916 * by the time we process other tasks.
917 */
918 si_chk_rcv(si);
Willy Tarreaud04e8582010-05-31 12:31:35 +0200919 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100920 req->wex = TICK_ETERNITY;
Olivier Houchard78595262019-07-26 14:54:34 +0200921 /* If we managed to get the whole response, and we don't have anything
922 * left to send, or can't, switch to SI_ST_DIS now. */
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100923 if (rep->flags & (CF_SHUTR | CF_SHUTW)) {
Olivier Houchardaacc4052019-05-21 17:43:50 +0200924 si->state = SI_ST_DIS;
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100925 DBG_TRACE_STATE("response channel shutdwn for read/write", STRM_EV_STRM_PROC|STRM_EV_SI_ST|STRM_EV_STRM_ERR, s);
926 }
927
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100928 DBG_TRACE_LEAVE(STRM_EV_STRM_PROC|STRM_EV_SI_ST, s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100929}
930
Willy Tarreau87b09662015-04-03 00:22:06 +0200931/* Set correct stream termination flags in case no analyser has done it. It
Simon Hormandec5be42011-06-08 09:19:07 +0900932 * also counts a failed request if the server state has not reached the request
933 * stage.
934 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200935static void sess_set_term_flags(struct stream *s)
Simon Hormandec5be42011-06-08 09:19:07 +0900936{
Willy Tarreaue7dff022015-04-03 01:14:29 +0200937 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +0200938 if (s->si[1].state == SI_ST_INI) {
939 /* anything before REQ in fact */
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100940 _HA_ATOMIC_ADD(&strm_fe(s)->fe_counters.failed_req, 1);
Willy Tarreau2c1068c2015-09-23 12:21:21 +0200941 if (strm_li(s) && strm_li(s)->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100942 _HA_ATOMIC_ADD(&strm_li(s)->counters->failed_req, 1);
Simon Hormandec5be42011-06-08 09:19:07 +0900943
Willy Tarreaue7dff022015-04-03 01:14:29 +0200944 s->flags |= SF_FINST_R;
Simon Hormandec5be42011-06-08 09:19:07 +0900945 }
946 else if (s->si[1].state == SI_ST_QUE)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200947 s->flags |= SF_FINST_Q;
Willy Tarreau4f283fa2019-06-05 14:34:03 +0200948 else if (si_state_in(s->si[1].state, SI_SB_REQ|SI_SB_TAR|SI_SB_ASS|SI_SB_CON|SI_SB_CER|SI_SB_RDY))
Willy Tarreaue7dff022015-04-03 01:14:29 +0200949 s->flags |= SF_FINST_C;
Simon Hormandec5be42011-06-08 09:19:07 +0900950 else if (s->si[1].state == SI_ST_EST || s->si[1].prev_state == SI_ST_EST)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200951 s->flags |= SF_FINST_D;
Simon Hormandec5be42011-06-08 09:19:07 +0900952 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200953 s->flags |= SF_FINST_L;
Simon Hormandec5be42011-06-08 09:19:07 +0900954 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100955}
956
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200957/* This function parses the use-service action ruleset. It executes
958 * the associated ACL and set an applet as a stream or txn final node.
959 * it returns ACT_RET_ERR if an error occurs, the proxy left in
Ilya Shipitsinc02a23f2020-05-06 00:53:22 +0500960 * consistent state. It returns ACT_RET_STOP in success case because
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200961 * use-service must be a terminal action. Returns ACT_RET_YIELD
962 * if the initialisation function require more data.
963 */
964enum act_return process_use_service(struct act_rule *rule, struct proxy *px,
965 struct session *sess, struct stream *s, int flags)
966
967{
968 struct appctx *appctx;
969
970 /* Initialises the applet if it is required. */
Christopher Faulet105ba6c2019-12-18 14:41:51 +0100971 if (flags & ACT_OPT_FIRST) {
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200972 /* Register applet. this function schedules the applet. */
973 s->target = &rule->applet.obj_type;
Willy Tarreau14bfe9a2018-12-19 15:19:27 +0100974 if (unlikely(!si_register_handler(&s->si[1], objt_applet(s->target))))
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200975 return ACT_RET_ERR;
976
977 /* Initialise the context. */
978 appctx = si_appctx(&s->si[1]);
979 memset(&appctx->ctx, 0, sizeof(appctx->ctx));
980 appctx->rule = rule;
981 }
982 else
983 appctx = si_appctx(&s->si[1]);
984
Ilya Shipitsinc02a23f2020-05-06 00:53:22 +0500985 /* Stops the applet scheduling, in case of the init function miss
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200986 * some data.
987 */
Willy Tarreau0cd3bd62018-11-06 18:46:37 +0100988 si_stop_get(&s->si[1]);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200989
990 /* Call initialisation. */
991 if (rule->applet.init)
992 switch (rule->applet.init(appctx, px, s)) {
993 case 0: return ACT_RET_ERR;
994 case 1: break;
995 default: return ACT_RET_YIELD;
996 }
997
Christopher Faulet2571bc62019-03-01 11:44:26 +0100998 if (rule->from != ACT_F_HTTP_REQ) {
999 if (sess->fe == s->be) /* report it if the request was intercepted by the frontend */
1000 _HA_ATOMIC_ADD(&sess->fe->fe_counters.intercepted_req, 1);
1001
1002 /* The flag SF_ASSIGNED prevent from server assignment. */
1003 s->flags |= SF_ASSIGNED;
1004 }
1005
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001006 /* Now we can schedule the applet. */
Willy Tarreau0cd3bd62018-11-06 18:46:37 +01001007 si_cant_get(&s->si[1]);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001008 appctx_wakeup(appctx);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001009 return ACT_RET_STOP;
1010}
1011
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001012/* This stream analyser checks the switching rules and changes the backend
Willy Tarreau4de91492010-01-22 19:10:05 +01001013 * if appropriate. The default_backend rule is also considered, then the
1014 * target backend's forced persistence rules are also evaluated last if any.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001015 * It returns 1 if the processing can continue on next analysers, or zero if it
1016 * either needs more data or wants to immediately abort the request.
1017 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001018static int process_switching_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001019{
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001020 struct persist_rule *prst_rule;
Willy Tarreau192252e2015-04-04 01:47:55 +02001021 struct session *sess = s->sess;
1022 struct proxy *fe = sess->fe;
Willy Tarreau4de91492010-01-22 19:10:05 +01001023
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001024 req->analysers &= ~an_bit;
1025 req->analyse_exp = TICK_ETERNITY;
1026
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001027 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001028
1029 /* now check whether we have some switching rules for this request */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001030 if (!(s->flags & SF_BE_ASSIGNED)) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001031 struct switching_rule *rule;
1032
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001033 list_for_each_entry(rule, &fe->switching_rules, list) {
Willy Tarreauf51658d2014-04-23 01:21:56 +02001034 int ret = 1;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001035
Willy Tarreauf51658d2014-04-23 01:21:56 +02001036 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001037 ret = acl_exec_cond(rule->cond, fe, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001038 ret = acl_pass(ret);
1039 if (rule->cond->pol == ACL_COND_UNLESS)
1040 ret = !ret;
1041 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001042
1043 if (ret) {
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001044 /* If the backend name is dynamic, try to resolve the name.
1045 * If we can't resolve the name, or if any error occurs, break
1046 * the loop and fallback to the default backend.
1047 */
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001048 struct proxy *backend = NULL;
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001049
1050 if (rule->dynamic) {
Willy Tarreau83061a82018-07-13 11:56:34 +02001051 struct buffer *tmp;
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001052
1053 tmp = alloc_trash_chunk();
1054 if (!tmp)
1055 goto sw_failed;
1056
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001057 if (build_logline(s, tmp->area, tmp->size, &rule->be.expr))
1058 backend = proxy_be_by_name(tmp->area);
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001059
1060 free_trash_chunk(tmp);
1061 tmp = NULL;
1062
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001063 if (!backend)
1064 break;
1065 }
1066 else
1067 backend = rule->be.backend;
1068
Willy Tarreau87b09662015-04-03 00:22:06 +02001069 if (!stream_set_backend(s, backend))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001070 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001071 break;
1072 }
1073 }
1074
1075 /* To ensure correct connection accounting on the backend, we
1076 * have to assign one if it was not set (eg: a listen). This
1077 * measure also takes care of correctly setting the default
1078 * backend if any.
1079 */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001080 if (!(s->flags & SF_BE_ASSIGNED))
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001081 if (!stream_set_backend(s, fe->defbe.be ? fe->defbe.be : s->be))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001082 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001083 }
1084
Willy Tarreaufb356202010-08-03 14:02:05 +02001085 /* we don't want to run the TCP or HTTP filters again if the backend has not changed */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001086 if (fe == s->be) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001087 s->req.analysers &= ~AN_REQ_INSPECT_BE;
1088 s->req.analysers &= ~AN_REQ_HTTP_PROCESS_BE;
Christopher Faulet0184ea72017-01-05 14:06:34 +01001089 s->req.analysers &= ~AN_REQ_FLT_START_BE;
Willy Tarreaufb356202010-08-03 14:02:05 +02001090 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001091
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001092 /* as soon as we know the backend, we must check if we have a matching forced or ignored
Willy Tarreau87b09662015-04-03 00:22:06 +02001093 * persistence rule, and report that in the stream.
Willy Tarreau4de91492010-01-22 19:10:05 +01001094 */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001095 list_for_each_entry(prst_rule, &s->be->persist_rules, list) {
Willy Tarreau4de91492010-01-22 19:10:05 +01001096 int ret = 1;
1097
1098 if (prst_rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001099 ret = acl_exec_cond(prst_rule->cond, s->be, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreau4de91492010-01-22 19:10:05 +01001100 ret = acl_pass(ret);
1101 if (prst_rule->cond->pol == ACL_COND_UNLESS)
1102 ret = !ret;
1103 }
1104
1105 if (ret) {
1106 /* no rule, or the rule matches */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001107 if (prst_rule->type == PERSIST_TYPE_FORCE) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001108 s->flags |= SF_FORCE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001109 } else {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001110 s->flags |= SF_IGNORE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001111 }
Willy Tarreau4de91492010-01-22 19:10:05 +01001112 break;
1113 }
1114 }
1115
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001116 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001117 return 1;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001118
1119 sw_failed:
1120 /* immediately abort this request in case of allocation failure */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001121 channel_abort(&s->req);
1122 channel_abort(&s->res);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001123
Willy Tarreaue7dff022015-04-03 01:14:29 +02001124 if (!(s->flags & SF_ERR_MASK))
1125 s->flags |= SF_ERR_RESOURCE;
1126 if (!(s->flags & SF_FINST_MASK))
1127 s->flags |= SF_FINST_R;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001128
Willy Tarreaueee5b512015-04-03 23:46:31 +02001129 if (s->txn)
1130 s->txn->status = 500;
Christopher Faulet0184ea72017-01-05 14:06:34 +01001131 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001132 s->req.analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001133 DBG_TRACE_DEVEL("leaving on error", STRM_EV_STRM_ANA|STRM_EV_STRM_ERR, s);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001134 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001135}
1136
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001137/* This stream analyser works on a request. It applies all use-server rules on
1138 * it then returns 1. The data must already be present in the buffer otherwise
1139 * they won't match. It always returns 1.
1140 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001141static int process_server_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001142{
1143 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001144 struct session *sess = s->sess;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001145 struct server_rule *rule;
1146
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001147 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001148
Willy Tarreaue7dff022015-04-03 01:14:29 +02001149 if (!(s->flags & SF_ASSIGNED)) {
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001150 list_for_each_entry(rule, &px->server_rules, list) {
1151 int ret;
1152
Willy Tarreau192252e2015-04-04 01:47:55 +02001153 ret = acl_exec_cond(rule->cond, s->be, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001154 ret = acl_pass(ret);
1155 if (rule->cond->pol == ACL_COND_UNLESS)
1156 ret = !ret;
1157
1158 if (ret) {
Jerome Magnin824186b2020-03-29 09:37:12 +02001159 struct server *srv;
1160
1161 if (rule->dynamic) {
1162 struct buffer *tmp = get_trash_chunk();
1163
1164 if (!build_logline(s, tmp->area, tmp->size, &rule->expr))
1165 break;
1166
1167 srv = findserver(s->be, tmp->area);
1168 if (!srv)
1169 break;
1170 }
1171 else
1172 srv = rule->srv.ptr;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001173
Emeric Brun52a91d32017-08-31 14:41:55 +02001174 if ((srv->cur_state != SRV_ST_STOPPED) ||
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001175 (px->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +02001176 (s->flags & SF_FORCE_PRST)) {
1177 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001178 s->target = &srv->obj_type;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001179 break;
1180 }
1181 /* if the server is not UP, let's go on with next rules
1182 * just in case another one is suited.
1183 */
1184 }
1185 }
1186 }
1187
1188 req->analysers &= ~an_bit;
1189 req->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001190 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001191 return 1;
1192}
1193
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001194static inline void sticking_rule_find_target(struct stream *s,
1195 struct stktable *t, struct stksess *ts)
1196{
1197 struct proxy *px = s->be;
1198 struct eb32_node *node;
1199 struct dict_entry *de;
1200 void *ptr;
1201 struct server *srv;
1202
1203 /* Look for the server name previously stored in <t> stick-table */
1204 HA_RWLOCK_RDLOCK(STK_SESS_LOCK, &ts->lock);
1205 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_NAME);
1206 de = stktable_data_cast(ptr, server_name);
1207 HA_RWLOCK_RDUNLOCK(STK_SESS_LOCK, &ts->lock);
1208
1209 if (de) {
1210 struct ebpt_node *name;
1211
1212 name = ebis_lookup(&px->conf.used_server_name, de->value.key);
1213 if (name) {
1214 srv = container_of(name, struct server, conf.name);
1215 goto found;
1216 }
1217 }
1218
1219 /* Look for the server ID */
1220 HA_RWLOCK_RDLOCK(STK_SESS_LOCK, &ts->lock);
1221 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_ID);
1222 node = eb32_lookup(&px->conf.used_server_id, stktable_data_cast(ptr, server_id));
1223 HA_RWLOCK_RDUNLOCK(STK_SESS_LOCK, &ts->lock);
1224
1225 if (!node)
1226 return;
1227
1228 srv = container_of(node, struct server, conf.id);
1229 found:
1230 if ((srv->cur_state != SRV_ST_STOPPED) ||
1231 (px->options & PR_O_PERSIST) || (s->flags & SF_FORCE_PRST)) {
1232 s->flags |= SF_DIRECT | SF_ASSIGNED;
1233 s->target = &srv->obj_type;
1234 }
1235}
1236
Emeric Brun1d33b292010-01-04 15:47:17 +01001237/* This stream analyser works on a request. It applies all sticking rules on
1238 * it then returns 1. The data must already be present in the buffer otherwise
1239 * they won't match. It always returns 1.
1240 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001241static int process_sticking_rules(struct stream *s, struct channel *req, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001242{
1243 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001244 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001245 struct sticking_rule *rule;
1246
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001247 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001248
1249 list_for_each_entry(rule, &px->sticking_rules, list) {
1250 int ret = 1 ;
1251 int i;
1252
Willy Tarreau9667a802013-12-09 12:52:13 +01001253 /* Only the first stick store-request of each table is applied
1254 * and other ones are ignored. The purpose is to allow complex
1255 * configurations which look for multiple entries by decreasing
1256 * order of precision and to stop at the first which matches.
1257 * An example could be a store of the IP address from an HTTP
1258 * header first, then from the source if not found.
1259 */
Jerome Magninbee00ad2020-01-16 17:37:21 +01001260 if (rule->flags & STK_IS_STORE) {
1261 for (i = 0; i < s->store_count; i++) {
1262 if (rule->table.t == s->store[i].table)
1263 break;
1264 }
Emeric Brun1d33b292010-01-04 15:47:17 +01001265
Jerome Magninbee00ad2020-01-16 17:37:21 +01001266 if (i != s->store_count)
1267 continue;
1268 }
Emeric Brun1d33b292010-01-04 15:47:17 +01001269
1270 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001271 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001272 ret = acl_pass(ret);
1273 if (rule->cond->pol == ACL_COND_UNLESS)
1274 ret = !ret;
1275 }
1276
1277 if (ret) {
1278 struct stktable_key *key;
1279
Willy Tarreau192252e2015-04-04 01:47:55 +02001280 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 +01001281 if (!key)
1282 continue;
1283
1284 if (rule->flags & STK_IS_MATCH) {
1285 struct stksess *ts;
1286
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001287 if ((ts = stktable_lookup_key(rule->table.t, key)) != NULL) {
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001288 if (!(s->flags & SF_ASSIGNED))
1289 sticking_rule_find_target(s, rule->table.t, ts);
Emeric Brun819fc6f2017-06-13 19:37:32 +02001290 stktable_touch_local(rule->table.t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001291 }
1292 }
1293 if (rule->flags & STK_IS_STORE) {
1294 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
1295 struct stksess *ts;
1296
1297 ts = stksess_new(rule->table.t, key);
1298 if (ts) {
1299 s->store[s->store_count].table = rule->table.t;
1300 s->store[s->store_count++].ts = ts;
1301 }
1302 }
1303 }
1304 }
1305 }
1306
1307 req->analysers &= ~an_bit;
1308 req->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001309 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001310 return 1;
1311}
1312
1313/* This stream analyser works on a response. It applies all store rules on it
1314 * then returns 1. The data must already be present in the buffer otherwise
1315 * they won't match. It always returns 1.
1316 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001317static int process_store_rules(struct stream *s, struct channel *rep, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001318{
1319 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001320 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001321 struct sticking_rule *rule;
1322 int i;
Willy Tarreau9667a802013-12-09 12:52:13 +01001323 int nbreq = s->store_count;
Emeric Brun1d33b292010-01-04 15:47:17 +01001324
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001325 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001326
1327 list_for_each_entry(rule, &px->storersp_rules, list) {
1328 int ret = 1 ;
Emeric Brun1d33b292010-01-04 15:47:17 +01001329
Willy Tarreau9667a802013-12-09 12:52:13 +01001330 /* Only the first stick store-response of each table is applied
1331 * and other ones are ignored. The purpose is to allow complex
1332 * configurations which look for multiple entries by decreasing
1333 * order of precision and to stop at the first which matches.
1334 * An example could be a store of a set-cookie value, with a
1335 * fallback to a parameter found in a 302 redirect.
1336 *
1337 * The store-response rules are not allowed to override the
1338 * store-request rules for the same table, but they may coexist.
1339 * Thus we can have up to one store-request entry and one store-
1340 * response entry for the same table at any time.
1341 */
1342 for (i = nbreq; i < s->store_count; i++) {
1343 if (rule->table.t == s->store[i].table)
1344 break;
1345 }
1346
1347 /* skip existing entries for this table */
1348 if (i < s->store_count)
1349 continue;
1350
Emeric Brun1d33b292010-01-04 15:47:17 +01001351 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001352 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_RES|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001353 ret = acl_pass(ret);
1354 if (rule->cond->pol == ACL_COND_UNLESS)
1355 ret = !ret;
1356 }
1357
1358 if (ret) {
1359 struct stktable_key *key;
1360
Willy Tarreau192252e2015-04-04 01:47:55 +02001361 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 +01001362 if (!key)
1363 continue;
1364
Willy Tarreau37e340c2013-12-06 23:05:21 +01001365 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001366 struct stksess *ts;
1367
1368 ts = stksess_new(rule->table.t, key);
1369 if (ts) {
1370 s->store[s->store_count].table = rule->table.t;
Emeric Brun1d33b292010-01-04 15:47:17 +01001371 s->store[s->store_count++].ts = ts;
1372 }
1373 }
1374 }
1375 }
1376
1377 /* process store request and store response */
1378 for (i = 0; i < s->store_count; i++) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001379 struct stksess *ts;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001380 void *ptr;
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001381 struct dict_entry *de;
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001382
Willy Tarreauc93cd162014-05-13 15:54:22 +02001383 if (objt_server(s->target) && objt_server(s->target)->flags & SRV_F_NON_STICK) {
Simon Hormanfa461682011-06-25 09:39:49 +09001384 stksess_free(s->store[i].table, s->store[i].ts);
1385 s->store[i].ts = NULL;
1386 continue;
1387 }
1388
Emeric Brun819fc6f2017-06-13 19:37:32 +02001389 ts = stktable_set_entry(s->store[i].table, s->store[i].ts);
1390 if (ts != s->store[i].ts) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001391 /* the entry already existed, we can free ours */
Emeric Brun1d33b292010-01-04 15:47:17 +01001392 stksess_free(s->store[i].table, s->store[i].ts);
Emeric Brun1d33b292010-01-04 15:47:17 +01001393 }
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001394 s->store[i].ts = NULL;
Emeric Brun819fc6f2017-06-13 19:37:32 +02001395
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001396 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Willy Tarreaub8d42d02018-09-20 11:11:15 +02001397 ptr = __stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_ID);
1398 stktable_data_cast(ptr, server_id) = __objt_server(s->target)->puid;
Christopher Faulet2a944ee2017-11-07 10:42:54 +01001399 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001400
1401 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
1402 de = dict_insert(&server_name_dict, __objt_server(s->target)->id);
1403 if (de) {
1404 ptr = __stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_NAME);
1405 stktable_data_cast(ptr, server_name) = de;
1406 }
1407 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
1408
Emeric Brun819fc6f2017-06-13 19:37:32 +02001409 stktable_touch_local(s->store[i].table, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001410 }
Willy Tarreau2a164ee2010-06-18 09:57:45 +02001411 s->store_count = 0; /* everything is stored */
Emeric Brun1d33b292010-01-04 15:47:17 +01001412
1413 rep->analysers &= ~an_bit;
1414 rep->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001415
1416 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001417 return 1;
1418}
1419
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001420/* This macro is very specific to the function below. See the comments in
Willy Tarreau87b09662015-04-03 00:22:06 +02001421 * process_stream() below to understand the logic and the tests.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001422 */
1423#define UPDATE_ANALYSERS(real, list, back, flag) { \
1424 list = (((list) & ~(flag)) | ~(back)) & (real); \
1425 back = real; \
1426 if (!(list)) \
1427 break; \
1428 if (((list) ^ ((list) & ((list) - 1))) < (flag)) \
1429 continue; \
1430}
1431
Christopher Fauleta9215b72016-05-11 17:06:28 +02001432/* These 2 following macros call an analayzer for the specified channel if the
1433 * right flag is set. The first one is used for "filterable" analyzers. If a
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001434 * stream has some registered filters, pre and post analyaze callbacks are
Christopher Faulet0184ea72017-01-05 14:06:34 +01001435 * called. The second are used for other analyzers (AN_REQ/RES_FLT_* and
Christopher Fauleta9215b72016-05-11 17:06:28 +02001436 * AN_REQ/RES_HTTP_XFER_BODY) */
1437#define FLT_ANALYZE(strm, chn, fun, list, back, flag, ...) \
1438 { \
1439 if ((list) & (flag)) { \
1440 if (HAS_FILTERS(strm)) { \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001441 if (!flt_pre_analyze((strm), (chn), (flag))) \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001442 break; \
1443 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1444 break; \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001445 if (!flt_post_analyze((strm), (chn), (flag))) \
1446 break; \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001447 } \
1448 else { \
1449 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1450 break; \
1451 } \
1452 UPDATE_ANALYSERS((chn)->analysers, (list), \
1453 (back), (flag)); \
1454 } \
1455 }
1456
1457#define ANALYZE(strm, chn, fun, list, back, flag, ...) \
1458 { \
1459 if ((list) & (flag)) { \
1460 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1461 break; \
1462 UPDATE_ANALYSERS((chn)->analysers, (list), \
1463 (back), (flag)); \
1464 } \
1465 }
1466
Willy Tarreau87b09662015-04-03 00:22:06 +02001467/* Processes the client, server, request and response jobs of a stream task,
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001468 * then puts it back to the wait queue in a clean state, or cleans up its
1469 * resources if it must be deleted. Returns in <next> the date the task wants
1470 * to be woken up, or TICK_ETERNITY. In order not to call all functions for
1471 * nothing too many times, the request and response buffers flags are monitored
1472 * and each function is called only if at least another function has changed at
1473 * least one flag it is interested in.
1474 */
Olivier Houchard9f6af332018-05-25 14:04:04 +02001475struct task *process_stream(struct task *t, void *context, unsigned short state)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001476{
Willy Tarreau827aee92011-03-10 16:55:02 +01001477 struct server *srv;
Olivier Houchard9f6af332018-05-25 14:04:04 +02001478 struct stream *s = context;
Willy Tarreaufb0afa72015-04-03 14:46:27 +02001479 struct session *sess = s->sess;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001480 unsigned int rqf_last, rpf_last;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001481 unsigned int rq_prod_last, rq_cons_last;
1482 unsigned int rp_cons_last, rp_prod_last;
Willy Tarreau576507f2010-01-07 00:09:04 +01001483 unsigned int req_ana_back;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001484 struct channel *req, *res;
1485 struct stream_interface *si_f, *si_b;
Willy Tarreau3d07a162019-04-25 19:15:20 +02001486 unsigned int rate;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001487
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001488 DBG_TRACE_ENTER(STRM_EV_STRM_PROC, s);
1489
Willy Tarreau7af4fa92020-06-17 20:49:49 +02001490 activity[tid].stream_calls++;
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01001491
Willy Tarreau8f128b42014-11-28 15:07:47 +01001492 req = &s->req;
1493 res = &s->res;
1494
1495 si_f = &s->si[0];
1496 si_b = &s->si[1];
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001497
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001498 /* First, attempt to receive pending data from I/O layers */
Willy Tarreauade64782018-11-17 19:51:07 +01001499 si_sync_recv(si_f);
1500 si_sync_recv(si_b);
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001501
Willy Tarreau3d07a162019-04-25 19:15:20 +02001502 rate = update_freq_ctr(&s->call_rate, 1);
1503 if (rate >= 100000 && s->call_rate.prev_ctr) { // make sure to wait at least a full second
1504 stream_dump_and_crash(&s->obj_type, read_freq_ctr(&s->call_rate));
1505 }
Olivier Houchardc2aa7112018-09-11 18:27:21 +02001506
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001507 /* this data may be no longer valid, clear it */
Willy Tarreaueee5b512015-04-03 23:46:31 +02001508 if (s->txn)
1509 memset(&s->txn->auth, 0, sizeof(s->txn->auth));
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001510
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02001511 /* This flag must explicitly be set every time */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001512 req->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
1513 res->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001514
1515 /* Keep a copy of req/rep flags so that we can detect shutdowns */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001516 rqf_last = req->flags & ~CF_MASK_ANALYSER;
1517 rpf_last = res->flags & ~CF_MASK_ANALYSER;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001518
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001519 /* we don't want the stream interface functions to recursively wake us up */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001520 si_f->flags |= SI_FL_DONT_WAKE;
1521 si_b->flags |= SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001522
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001523 /* update pending events */
Olivier Houchard9f6af332018-05-25 14:04:04 +02001524 s->pending_events |= (state & TASK_WOKEN_ANY);
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001525
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001526 /* 1a: Check for low level timeouts if needed. We just set a flag on
1527 * stream interfaces when their timeouts have expired.
1528 */
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001529 if (unlikely(s->pending_events & TASK_WOKEN_TIMER)) {
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001530 si_check_timeouts(si_f);
1531 si_check_timeouts(si_b);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001532
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001533 /* check channel timeouts, and close the corresponding stream interfaces
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001534 * for future reads or writes. Note: this will also concern upper layers
1535 * but we do not touch any other flag. We must be careful and correctly
1536 * detect state changes when calling them.
1537 */
1538
Willy Tarreau8f128b42014-11-28 15:07:47 +01001539 channel_check_timeouts(req);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001540
Willy Tarreau8f128b42014-11-28 15:07:47 +01001541 if (unlikely((req->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1542 si_b->flags |= SI_FL_NOLINGER;
1543 si_shutw(si_b);
Willy Tarreau14641402009-12-29 14:49:56 +01001544 }
1545
Willy Tarreau8f128b42014-11-28 15:07:47 +01001546 if (unlikely((req->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1547 if (si_f->flags & SI_FL_NOHALF)
1548 si_f->flags |= SI_FL_NOLINGER;
1549 si_shutr(si_f);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001550 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001551
Willy Tarreau8f128b42014-11-28 15:07:47 +01001552 channel_check_timeouts(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001553
Willy Tarreau8f128b42014-11-28 15:07:47 +01001554 if (unlikely((res->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1555 si_f->flags |= SI_FL_NOLINGER;
1556 si_shutw(si_f);
Willy Tarreau14641402009-12-29 14:49:56 +01001557 }
1558
Willy Tarreau8f128b42014-11-28 15:07:47 +01001559 if (unlikely((res->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1560 if (si_b->flags & SI_FL_NOHALF)
1561 si_b->flags |= SI_FL_NOLINGER;
1562 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001563 }
Willy Tarreau798f4322012-11-08 14:49:17 +01001564
Christopher Fauleta00d8172016-11-10 14:58:05 +01001565 if (HAS_FILTERS(s))
1566 flt_stream_check_timeouts(s);
1567
Willy Tarreau798f4322012-11-08 14:49:17 +01001568 /* Once in a while we're woken up because the task expires. But
1569 * this does not necessarily mean that a timeout has been reached.
Willy Tarreau87b09662015-04-03 00:22:06 +02001570 * So let's not run a whole stream processing if only an expiration
Willy Tarreau798f4322012-11-08 14:49:17 +01001571 * timeout needs to be refreshed.
1572 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001573 if (!((req->flags | res->flags) &
Willy Tarreau798f4322012-11-08 14:49:17 +01001574 (CF_SHUTR|CF_READ_ACTIVITY|CF_READ_TIMEOUT|CF_SHUTW|
Willy Tarreauede3d882018-10-24 17:17:56 +02001575 CF_WRITE_ACTIVITY|CF_WRITE_TIMEOUT|CF_ANA_TIMEOUT)) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01001576 !((si_f->flags | si_b->flags) & (SI_FL_EXP|SI_FL_ERR)) &&
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001577 ((s->pending_events & TASK_WOKEN_ANY) == TASK_WOKEN_TIMER)) {
Willy Tarreau5fb04712016-05-04 10:18:37 +02001578 si_f->flags &= ~SI_FL_DONT_WAKE;
1579 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau798f4322012-11-08 14:49:17 +01001580 goto update_exp_and_leave;
Willy Tarreau5fb04712016-05-04 10:18:37 +02001581 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001582 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001583
Willy Tarreau829bd472019-06-06 09:17:23 +02001584 resync_stream_interface:
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001585 /* below we may emit error messages so we have to ensure that we have
1586 * our buffers properly allocated.
1587 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001588 if (!stream_alloc_work_buffer(s)) {
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001589 /* No buffer available, we've been subscribed to the list of
1590 * buffer waiters, let's wait for our turn.
1591 */
Willy Tarreau5fb04712016-05-04 10:18:37 +02001592 si_f->flags &= ~SI_FL_DONT_WAKE;
1593 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001594 goto update_exp_and_leave;
1595 }
1596
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001597 /* 1b: check for low-level errors reported at the stream interface.
1598 * First we check if it's a retryable error (in which case we don't
1599 * want to tell the buffer). Otherwise we report the error one level
1600 * upper by setting flags into the buffers. Note that the side towards
1601 * the client cannot have connect (hence retryable) errors. Also, the
1602 * connection setup code must be able to deal with any type of abort.
1603 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001604 srv = objt_server(s->target);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001605 if (unlikely(si_f->flags & SI_FL_ERR)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001606 if (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001607 si_shutr(si_f);
1608 si_shutw(si_f);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001609 si_report_error(si_f);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001610 if (!(req->analysers) && !(res->analysers)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001611 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1612 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001613 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001614 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001615 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001616 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001617 if (!(s->flags & SF_ERR_MASK))
1618 s->flags |= SF_ERR_CLICL;
1619 if (!(s->flags & SF_FINST_MASK))
1620 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001621 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001622 }
1623 }
1624
Willy Tarreau8f128b42014-11-28 15:07:47 +01001625 if (unlikely(si_b->flags & SI_FL_ERR)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001626 if (si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001627 si_shutr(si_b);
1628 si_shutw(si_b);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001629 si_report_error(si_b);
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001630 _HA_ATOMIC_ADD(&s->be->be_counters.failed_resp, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001631 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001632 _HA_ATOMIC_ADD(&srv->counters.failed_resp, 1);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001633 if (!(req->analysers) && !(res->analysers)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001634 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1635 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001636 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001637 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001638 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001639 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001640 if (!(s->flags & SF_ERR_MASK))
1641 s->flags |= SF_ERR_SRVCL;
1642 if (!(s->flags & SF_FINST_MASK))
1643 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001644 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001645 }
1646 /* note: maybe we should process connection errors here ? */
1647 }
1648
Willy Tarreau4f283fa2019-06-05 14:34:03 +02001649 if (si_state_in(si_b->state, SI_SB_CON|SI_SB_RDY)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001650 /* we were trying to establish a connection on the server side,
1651 * maybe it succeeded, maybe it failed, maybe we timed out, ...
1652 */
Willy Tarreaud66ed882019-06-05 18:02:04 +02001653 if (si_b->state == SI_ST_RDY)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001654 back_handle_st_rdy(s);
Willy Tarreaud66ed882019-06-05 18:02:04 +02001655 else if (si_b->state == SI_ST_CON)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001656 back_handle_st_con(s);
Willy Tarreaud66ed882019-06-05 18:02:04 +02001657
1658 if (si_b->state == SI_ST_CER)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001659 back_handle_st_cer(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001660 else if (si_b->state == SI_ST_EST)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001661 back_establish(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001662
1663 /* state is now one of SI_ST_CON (still in progress), SI_ST_EST
1664 * (established), SI_ST_DIS (abort), SI_ST_CLO (last error),
1665 * SI_ST_ASS/SI_ST_TAR/SI_ST_REQ for retryable errors.
1666 */
1667 }
1668
Willy Tarreau8f128b42014-11-28 15:07:47 +01001669 rq_prod_last = si_f->state;
1670 rq_cons_last = si_b->state;
1671 rp_cons_last = si_f->state;
1672 rp_prod_last = si_b->state;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001673
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001674 /* Check for connection closure */
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001675 DBG_TRACE_POINT(STRM_EV_STRM_PROC, s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001676
1677 /* nothing special to be done on client side */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001678 if (unlikely(si_f->state == SI_ST_DIS))
1679 si_f->state = SI_ST_CLO;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001680
1681 /* When a server-side connection is released, we have to count it and
1682 * check for pending connections on this server.
1683 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001684 if (unlikely(si_b->state == SI_ST_DIS)) {
1685 si_b->state = SI_ST_CLO;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001686 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01001687 if (srv) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001688 if (s->flags & SF_CURR_SESS) {
1689 s->flags &= ~SF_CURR_SESS;
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001690 _HA_ATOMIC_SUB(&srv->cur_sess, 1);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001691 }
1692 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001693 if (may_dequeue_tasks(srv, s->be))
1694 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001695 }
1696 }
1697
1698 /*
1699 * Note: of the transient states (REQ, CER, DIS), only REQ may remain
1700 * at this point.
1701 */
1702
Willy Tarreau0be0ef92009-03-08 19:20:25 +01001703 resync_request:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001704 /* Analyse request */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001705 if (((req->flags & ~rqf_last) & CF_MASK_ANALYSER) ||
1706 ((req->flags ^ rqf_last) & CF_MASK_STATIC) ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01001707 (req->analysers && (req->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01001708 si_f->state != rq_prod_last ||
1709 si_b->state != rq_cons_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001710 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001711 unsigned int flags = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001712
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001713 if (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001714 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001715 unsigned int ana_list;
1716 unsigned int ana_back;
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001717
Willy Tarreau90deb182010-01-07 00:20:41 +01001718 /* it's up to the analysers to stop new connections,
1719 * disable reading or closing. Note: if an analyser
1720 * disables any of these bits, it is responsible for
1721 * enabling them again when it disables itself, so
1722 * that other analysers are called in similar conditions.
1723 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001724 channel_auto_read(req);
1725 channel_auto_connect(req);
1726 channel_auto_close(req);
Willy Tarreauedcf6682008-11-30 23:15:34 +01001727
1728 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01001729 * req->analysers, following the bit order from LSB
Willy Tarreauedcf6682008-11-30 23:15:34 +01001730 * to MSB. The analysers must remove themselves from
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001731 * the list when not needed. Any analyser may return 0
1732 * to break out of the loop, either because of missing
1733 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02001734 * kill the stream. We loop at least once through each
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001735 * analyser, and we may loop again if other analysers
1736 * are added in the middle.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001737 *
1738 * We build a list of analysers to run. We evaluate all
1739 * of these analysers in the order of the lower bit to
1740 * the higher bit. This ordering is very important.
1741 * An analyser will often add/remove other analysers,
1742 * including itself. Any changes to itself have no effect
1743 * on the loop. If it removes any other analysers, we
1744 * want those analysers not to be called anymore during
1745 * this loop. If it adds an analyser that is located
1746 * after itself, we want it to be scheduled for being
1747 * processed during the loop. If it adds an analyser
1748 * which is located before it, we want it to switch to
1749 * it immediately, even if it has already been called
1750 * once but removed since.
1751 *
1752 * In order to achieve this, we compare the analyser
1753 * list after the call with a copy of it before the
1754 * call. The work list is fed with analyser bits that
1755 * appeared during the call. Then we compare previous
1756 * work list with the new one, and check the bits that
1757 * appeared. If the lowest of these bits is lower than
1758 * the current bit, it means we have enabled a previous
1759 * analyser and must immediately loop again.
Willy Tarreauedcf6682008-11-30 23:15:34 +01001760 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001761
Willy Tarreau8f128b42014-11-28 15:07:47 +01001762 ana_list = ana_back = req->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001763 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001764 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01001765 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_FE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001766 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_FE);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001767 FLT_ANALYZE(s, req, http_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_HTTP);
1768 FLT_ANALYZE(s, req, http_wait_for_request_body, ana_list, ana_back, AN_REQ_HTTP_BODY);
1769 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 +02001770 FLT_ANALYZE(s, req, process_switching_rules, ana_list, ana_back, AN_REQ_SWITCHING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001771 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001772 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_BE);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001773 FLT_ANALYZE(s, req, http_process_req_common, ana_list, ana_back, AN_REQ_HTTP_PROCESS_BE, s->be);
1774 FLT_ANALYZE(s, req, http_process_tarpit, ana_list, ana_back, AN_REQ_HTTP_TARPIT);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001775 FLT_ANALYZE(s, req, process_server_rules, ana_list, ana_back, AN_REQ_SRV_RULES);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001776 FLT_ANALYZE(s, req, http_process_request, ana_list, ana_back, AN_REQ_HTTP_INNER);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001777 FLT_ANALYZE(s, req, tcp_persist_rdp_cookie, ana_list, ana_back, AN_REQ_PRST_RDP_COOKIE);
1778 FLT_ANALYZE(s, req, process_sticking_rules, ana_list, ana_back, AN_REQ_STICKING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001779 ANALYZE (s, req, flt_analyze_http_headers, ana_list, ana_back, AN_REQ_FLT_HTTP_HDRS);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001780 ANALYZE (s, req, http_request_forward_body, ana_list, ana_back, AN_REQ_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02001781 ANALYZE (s, req, pcli_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001782 ANALYZE (s, req, flt_xfer_data, ana_list, ana_back, AN_REQ_FLT_XFER_DATA);
1783 ANALYZE (s, req, flt_end_analyze, ana_list, ana_back, AN_REQ_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01001784 break;
1785 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001786 }
Willy Tarreau84455332009-03-15 22:34:05 +01001787
Willy Tarreau8f128b42014-11-28 15:07:47 +01001788 rq_prod_last = si_f->state;
1789 rq_cons_last = si_b->state;
1790 req->flags &= ~CF_WAKE_ONCE;
1791 rqf_last = req->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001792
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02001793 if ((req->flags ^ flags) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001794 goto resync_request;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001795 }
1796
Willy Tarreau576507f2010-01-07 00:09:04 +01001797 /* we'll monitor the request analysers while parsing the response,
1798 * because some response analysers may indirectly enable new request
1799 * analysers (eg: HTTP keep-alive).
1800 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001801 req_ana_back = req->analysers;
Willy Tarreau576507f2010-01-07 00:09:04 +01001802
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001803 resync_response:
1804 /* Analyse response */
1805
Willy Tarreau8f128b42014-11-28 15:07:47 +01001806 if (((res->flags & ~rpf_last) & CF_MASK_ANALYSER) ||
1807 (res->flags ^ rpf_last) & CF_MASK_STATIC ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01001808 (res->analysers && (res->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01001809 si_f->state != rp_cons_last ||
1810 si_b->state != rp_prod_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001811 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001812 unsigned int flags = res->flags;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001813
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001814 if (si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001815 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001816 unsigned int ana_list;
1817 unsigned int ana_back;
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001818
Willy Tarreau90deb182010-01-07 00:20:41 +01001819 /* it's up to the analysers to stop disable reading or
1820 * closing. Note: if an analyser disables any of these
1821 * bits, it is responsible for enabling them again when
1822 * it disables itself, so that other analysers are called
1823 * in similar conditions.
1824 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001825 channel_auto_read(res);
1826 channel_auto_close(res);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001827
1828 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01001829 * res->analysers, following the bit order from LSB
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001830 * to MSB. The analysers must remove themselves from
1831 * the list when not needed. Any analyser may return 0
1832 * to break out of the loop, either because of missing
1833 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02001834 * kill the stream. We loop at least once through each
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001835 * analyser, and we may loop again if other analysers
1836 * are added in the middle.
1837 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001838
Willy Tarreau8f128b42014-11-28 15:07:47 +01001839 ana_list = ana_back = res->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001840 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001841 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01001842 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_FE);
1843 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001844 FLT_ANALYZE(s, res, tcp_inspect_response, ana_list, ana_back, AN_RES_INSPECT);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001845 FLT_ANALYZE(s, res, http_wait_for_response, ana_list, ana_back, AN_RES_WAIT_HTTP);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001846 FLT_ANALYZE(s, res, process_store_rules, ana_list, ana_back, AN_RES_STORE_RULES);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001847 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 +01001848 ANALYZE (s, res, flt_analyze_http_headers, ana_list, ana_back, AN_RES_FLT_HTTP_HDRS);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001849 ANALYZE (s, res, http_response_forward_body, ana_list, ana_back, AN_RES_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02001850 ANALYZE (s, res, pcli_wait_for_response, ana_list, ana_back, AN_RES_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001851 ANALYZE (s, res, flt_xfer_data, ana_list, ana_back, AN_RES_FLT_XFER_DATA);
1852 ANALYZE (s, res, flt_end_analyze, ana_list, ana_back, AN_RES_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01001853 break;
1854 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001855 }
1856
Willy Tarreau8f128b42014-11-28 15:07:47 +01001857 rp_cons_last = si_f->state;
1858 rp_prod_last = si_b->state;
Christopher Fauletcdaea892017-07-06 15:49:30 +02001859 res->flags &= ~CF_WAKE_ONCE;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001860 rpf_last = res->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001861
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02001862 if ((res->flags ^ flags) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001863 goto resync_response;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001864 }
1865
Willy Tarreau576507f2010-01-07 00:09:04 +01001866 /* maybe someone has added some request analysers, so we must check and loop */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001867 if (req->analysers & ~req_ana_back)
Willy Tarreau576507f2010-01-07 00:09:04 +01001868 goto resync_request;
1869
Willy Tarreau8f128b42014-11-28 15:07:47 +01001870 if ((req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0499e352010-12-17 07:13:42 +01001871 goto resync_request;
1872
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001873 /* FIXME: here we should call protocol handlers which rely on
1874 * both buffers.
1875 */
1876
1877
1878 /*
Willy Tarreau87b09662015-04-03 00:22:06 +02001879 * Now we propagate unhandled errors to the stream. Normally
Willy Tarreauae526782010-03-04 20:34:23 +01001880 * we're just in a data phase here since it means we have not
1881 * seen any analyser who could set an error status.
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001882 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001883 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001884 if (unlikely(!(s->flags & SF_ERR_MASK))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001885 if (req->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001886 /* Report it if the client got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001887 req->analysers = 0;
1888 if (req->flags & CF_READ_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001889 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1890 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001891 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001892 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001893 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001894 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001895 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01001896 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001897 else if (req->flags & CF_READ_TIMEOUT) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001898 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1899 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001900 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001901 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001902 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001903 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001904 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01001905 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001906 else if (req->flags & CF_WRITE_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001907 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1908 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001909 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001910 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001911 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001912 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001913 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01001914 }
1915 else {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001916 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1917 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001918 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001919 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001920 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001921 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001922 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01001923 }
Willy Tarreau84455332009-03-15 22:34:05 +01001924 sess_set_term_flags(s);
Christopher Faulet5e1a9d72019-04-23 17:34:22 +02001925
1926 /* Abort the request if a client error occurred while
1927 * the backend stream-interface is in the SI_ST_INI
1928 * state. It is switched into the SI_ST_CLO state and
1929 * the request channel is erased. */
1930 if (si_b->state == SI_ST_INI) {
1931 si_b->state = SI_ST_CLO;
1932 channel_abort(req);
1933 if (IS_HTX_STRM(s))
1934 channel_htx_erase(req, htxbuf(&req->buf));
1935 else
1936 channel_erase(req);
1937 }
Willy Tarreau84455332009-03-15 22:34:05 +01001938 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001939 else if (res->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001940 /* Report it if the server got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001941 res->analysers = 0;
1942 if (res->flags & CF_READ_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001943 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1944 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001945 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001946 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001947 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001948 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001949 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01001950 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001951 else if (res->flags & CF_READ_TIMEOUT) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001952 _HA_ATOMIC_ADD(&s->be->be_counters.srv_aborts, 1);
1953 _HA_ATOMIC_ADD(&sess->fe->fe_counters.srv_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001954 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001955 _HA_ATOMIC_ADD(&sess->listener->counters->srv_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001956 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001957 _HA_ATOMIC_ADD(&srv->counters.srv_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001958 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01001959 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001960 else if (res->flags & CF_WRITE_ERROR) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001961 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1962 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001963 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001964 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001965 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001966 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001967 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01001968 }
1969 else {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001970 _HA_ATOMIC_ADD(&s->be->be_counters.cli_aborts, 1);
1971 _HA_ATOMIC_ADD(&sess->fe->fe_counters.cli_aborts, 1);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001972 if (sess->listener && sess->listener->counters)
Christopher Fauletcff0f732019-12-16 16:13:44 +01001973 _HA_ATOMIC_ADD(&sess->listener->counters->cli_aborts, 1);
Willy Tarreau827aee92011-03-10 16:55:02 +01001974 if (srv)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01001975 _HA_ATOMIC_ADD(&srv->counters.cli_aborts, 1);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001976 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01001977 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001978 sess_set_term_flags(s);
1979 }
Willy Tarreau84455332009-03-15 22:34:05 +01001980 }
1981
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001982 /*
1983 * Here we take care of forwarding unhandled data. This also includes
1984 * connection establishments and shutdown requests.
1985 */
1986
1987
Willy Tarreau7c84bab2009-03-08 21:38:23 +01001988 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02001989 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001990 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001991 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01001992 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02001993 if (unlikely((!req->analysers || (req->analysers == AN_REQ_FLT_END && !(req->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01001994 !(req->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001995 (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01001996 (req->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01001997 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01001998 * attached to it. If any data are left in, we'll permit them to
1999 * move.
2000 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002001 channel_auto_read(req);
2002 channel_auto_connect(req);
2003 channel_auto_close(req);
Willy Tarreau5bd8c372009-01-19 00:32:22 +01002004
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002005 if (IS_HTX_STRM(s)) {
2006 struct htx *htx = htxbuf(&req->buf);
2007
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002008 /* We'll let data flow between the producer (if still connected)
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002009 * to the consumer.
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002010 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002011 co_set_data(req, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002012 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002013 channel_htx_forward_forever(req, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002014 }
2015 else {
2016 /* We'll let data flow between the producer (if still connected)
2017 * to the consumer (which might possibly not be connected yet).
2018 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002019 c_adv(req, ci_data(req));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002020 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2021 channel_forward_forever(req);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002022 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002023 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002024
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002025 /* check if it is wise to enable kernel splicing to forward request data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002026 if (!(req->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2027 req->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002028 (global.tune.options & GTUNE_USE_SPLICE) &&
Christopher Faulet276c1e02019-11-05 16:49:23 +01002029 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->rcv_pipe &&
2030 __objt_cs(si_f->end)->conn->mux && __objt_cs(si_f->end)->conn->mux->rcv_pipe) &&
2031 (objt_cs(si_b->end) && __objt_cs(si_b->end)->conn->xprt && __objt_cs(si_b->end)->conn->xprt->snd_pipe &&
2032 __objt_cs(si_b->end)->conn->mux && __objt_cs(si_b->end)->conn->mux->snd_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002033 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002034 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_REQ) ||
2035 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002036 (req->flags & CF_STREAMER_FAST)))) {
2037 req->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002038 }
2039
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002040 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002041 rqf_last = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002042
Willy Tarreau520d95e2009-09-19 21:04:57 +02002043 /* it's possible that an upper layer has requested a connection setup or abort.
2044 * There are 2 situations where we decide to establish a new connection :
2045 * - there are data scheduled for emission in the buffer
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002046 * - the CF_AUTO_CONNECT flag is set (active connection)
Willy Tarreau520d95e2009-09-19 21:04:57 +02002047 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002048 if (si_b->state == SI_ST_INI) {
Christopher Faulet5e1a9d72019-04-23 17:34:22 +02002049 if (!(req->flags & CF_SHUTW)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002050 if ((req->flags & CF_AUTO_CONNECT) || !channel_is_empty(req)) {
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002051 /* If we have an appctx, there is no connect method, so we
2052 * immediately switch to the connected state, otherwise we
2053 * perform a connection request.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002054 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002055 si_b->state = SI_ST_REQ; /* new connection requested */
2056 si_b->conn_retries = s->be->conn_retries;
Olivier Houchard602bf7d2019-05-10 13:59:15 +02002057 if ((s->be->retry_type &~ PR_RE_CONN_FAILED) &&
Olivier Houchard7dd7b902020-05-13 19:07:20 +02002058 (s->be->mode == PR_MODE_HTTP) &&
Olivier Houchard602bf7d2019-05-10 13:59:15 +02002059 !(si_b->flags & SI_FL_D_L7_RETRY))
Olivier Houcharda254a372019-04-05 15:30:12 +02002060 si_b->flags |= SI_FL_L7_RETRY;
Willy Tarreau520d95e2009-09-19 21:04:57 +02002061 }
Willy Tarreau73201222009-08-16 18:27:24 +02002062 }
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002063 else {
Willy Tarreau0542c8b2017-11-24 15:01:10 +01002064 si_release_endpoint(si_b);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002065 si_b->state = SI_ST_CLO; /* shutw+ini = abort */
2066 channel_shutw_now(req); /* fix buffer flags upon abort */
2067 channel_shutr_now(res);
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002068 }
Willy Tarreau92795622009-03-06 12:51:23 +01002069 }
2070
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002071
2072 /* we may have a pending connection request, or a connection waiting
2073 * for completion.
2074 */
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002075 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 +02002076 /* prune the request variables and swap to the response variables. */
2077 if (s->vars_reqres.scope != SCOPE_RES) {
Jerome Magnin2f44e882019-11-09 18:00:47 +01002078 if (!LIST_ISEMPTY(&s->vars_reqres.head))
Willy Tarreaucda7f3f2018-10-28 13:44:36 +01002079 vars_prune(&s->vars_reqres, s->sess, s);
Jerome Magnin2f44e882019-11-09 18:00:47 +01002080 vars_init(&s->vars_reqres, SCOPE_RES);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +02002081 }
2082
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002083 do {
2084 /* nb: step 1 might switch from QUE to ASS, but we first want
2085 * to give a chance to step 2 to perform a redirect if needed.
2086 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002087 if (si_b->state != SI_ST_REQ)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002088 back_try_conn_req(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002089 if (si_b->state == SI_ST_REQ)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002090 back_handle_st_req(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002091
Willy Tarreauada4c582020-03-04 16:42:03 +01002092 /* get a chance to complete an immediate connection setup */
2093 if (si_b->state == SI_ST_RDY)
2094 goto resync_stream_interface;
2095
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +01002096 /* applets directly go to the ESTABLISHED state. Similarly,
2097 * servers experience the same fate when their connection
2098 * is reused.
2099 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002100 if (unlikely(si_b->state == SI_ST_EST))
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002101 back_establish(s);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01002102
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002103 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002104 if (si_b->state == SI_ST_ASS && srv && srv->rdr_len && (s->flags & SF_REDIRECTABLE))
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02002105 http_perform_server_redirect(s, si_b);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002106 } while (si_b->state == SI_ST_ASS);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002107 }
2108
Willy Tarreau829bd472019-06-06 09:17:23 +02002109 /* Let's see if we can send the pending request now */
2110 si_sync_send(si_b);
2111
2112 /*
2113 * Now forward all shutdown requests between both sides of the request buffer
2114 */
2115
2116 /* first, let's check if the request buffer needs to shutdown(write), which may
2117 * happen either because the input is closed or because we want to force a close
2118 * once the server has begun to respond. If a half-closed timeout is set, we adjust
2119 * the other side's timeout as well.
2120 */
2121 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
2122 (CF_AUTO_CLOSE|CF_SHUTR))) {
2123 channel_shutw_now(req);
2124 }
2125
2126 /* shutdown(write) pending */
2127 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2128 channel_is_empty(req))) {
2129 if (req->flags & CF_READ_ERROR)
2130 si_b->flags |= SI_FL_NOLINGER;
2131 si_shutw(si_b);
2132 }
2133
2134 /* shutdown(write) done on server side, we must stop the client too */
2135 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW &&
2136 !req->analysers))
2137 channel_shutr_now(req);
2138
2139 /* shutdown(read) pending */
2140 if (unlikely((req->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2141 if (si_f->flags & SI_FL_NOHALF)
2142 si_f->flags |= SI_FL_NOLINGER;
2143 si_shutr(si_f);
2144 }
2145
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002146 /* Benchmarks have shown that it's optimal to do a full resync now */
Willy Tarreau829bd472019-06-06 09:17:23 +02002147 if (si_f->state == SI_ST_DIS ||
2148 si_state_in(si_b->state, SI_SB_RDY|SI_SB_DIS) ||
2149 (si_f->flags & SI_FL_ERR && si_f->state != SI_ST_CLO) ||
2150 (si_b->flags & SI_FL_ERR && si_b->state != SI_ST_CLO))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002151 goto resync_stream_interface;
2152
Willy Tarreau815a9b22010-07-27 17:15:12 +02002153 /* otherwise we want to check if we need to resync the req buffer or not */
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02002154 if ((req->flags ^ rqf_last) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002155 goto resync_request;
2156
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002157 /* perform output updates to the response buffer */
Willy Tarreau84455332009-03-15 22:34:05 +01002158
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002159 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002160 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002161 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002162 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002163 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02002164 if (unlikely((!res->analysers || (res->analysers == AN_RES_FLT_END && !(res->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002165 !(res->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002166 si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002167 (res->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002168 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002169 * attached to it. If any data are left in, we'll permit them to
2170 * move.
2171 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002172 channel_auto_read(res);
2173 channel_auto_close(res);
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002174
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002175 if (IS_HTX_STRM(s)) {
2176 struct htx *htx = htxbuf(&res->buf);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002177
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002178 /* We'll let data flow between the producer (if still connected)
2179 * to the consumer.
2180 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002181 co_set_data(res, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002182 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002183 channel_htx_forward_forever(res, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002184 }
2185 else {
2186 /* We'll let data flow between the producer (if still connected)
2187 * to the consumer.
2188 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002189 c_adv(res, ci_data(res));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002190 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2191 channel_forward_forever(res);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002192 }
Willy Tarreau42529c32015-07-09 18:38:57 +02002193
Willy Tarreauce887fd2012-05-12 12:50:00 +02002194 /* if we have no analyser anymore in any direction and have a
Willy Tarreau05cdd962014-05-10 14:30:07 +02002195 * tunnel timeout set, use it now. Note that we must respect
2196 * the half-closed timeouts as well.
Willy Tarreauce887fd2012-05-12 12:50:00 +02002197 */
Amaury Denoyellefb504432020-12-10 13:43:53 +01002198 if (!req->analysers && s->tunnel_timeout) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002199 req->rto = req->wto = res->rto = res->wto =
Amaury Denoyellefb504432020-12-10 13:43:53 +01002200 s->tunnel_timeout;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002201
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002202 if ((req->flags & CF_SHUTR) && tick_isset(sess->fe->timeout.clientfin))
2203 res->wto = sess->fe->timeout.clientfin;
Willy Tarreau8f128b42014-11-28 15:07:47 +01002204 if ((req->flags & CF_SHUTW) && tick_isset(s->be->timeout.serverfin))
2205 res->rto = s->be->timeout.serverfin;
2206 if ((res->flags & CF_SHUTR) && tick_isset(s->be->timeout.serverfin))
2207 req->wto = s->be->timeout.serverfin;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002208 if ((res->flags & CF_SHUTW) && tick_isset(sess->fe->timeout.clientfin))
2209 req->rto = sess->fe->timeout.clientfin;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002210
Willy Tarreau8f128b42014-11-28 15:07:47 +01002211 req->rex = tick_add(now_ms, req->rto);
2212 req->wex = tick_add(now_ms, req->wto);
2213 res->rex = tick_add(now_ms, res->rto);
2214 res->wex = tick_add(now_ms, res->wto);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002215 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002216 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002217
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002218 /* check if it is wise to enable kernel splicing to forward response data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002219 if (!(res->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2220 res->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002221 (global.tune.options & GTUNE_USE_SPLICE) &&
Christopher Faulet276c1e02019-11-05 16:49:23 +01002222 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->snd_pipe &&
2223 __objt_cs(si_f->end)->conn->mux && __objt_cs(si_f->end)->conn->mux->snd_pipe) &&
2224 (objt_cs(si_b->end) && __objt_cs(si_b->end)->conn->xprt && __objt_cs(si_b->end)->conn->xprt->rcv_pipe &&
2225 __objt_cs(si_b->end)->conn->mux && __objt_cs(si_b->end)->conn->mux->rcv_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002226 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002227 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_RTR) ||
2228 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002229 (res->flags & CF_STREAMER_FAST)))) {
2230 res->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002231 }
2232
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002233 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002234 rpf_last = res->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002235
Willy Tarreau829bd472019-06-06 09:17:23 +02002236 /* Let's see if we can send the pending response now */
2237 si_sync_send(si_f);
2238
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002239 /*
2240 * Now forward all shutdown requests between both sides of the buffer
2241 */
2242
2243 /*
2244 * FIXME: this is probably where we should produce error responses.
2245 */
2246
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002247 /* first, let's check if the response buffer needs to shutdown(write) */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002248 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau05cdd962014-05-10 14:30:07 +02002249 (CF_AUTO_CLOSE|CF_SHUTR))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002250 channel_shutw_now(res);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002251 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002252
2253 /* shutdown(write) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002254 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2255 channel_is_empty(res))) {
2256 si_shutw(si_f);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002257 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002258
2259 /* shutdown(write) done on the client side, we must stop the server too */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002260 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW) &&
2261 !res->analysers)
2262 channel_shutr_now(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002263
2264 /* shutdown(read) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002265 if (unlikely((res->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2266 if (si_b->flags & SI_FL_NOHALF)
2267 si_b->flags |= SI_FL_NOLINGER;
2268 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002269 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002270
Willy Tarreau829bd472019-06-06 09:17:23 +02002271 if (si_f->state == SI_ST_DIS ||
2272 si_state_in(si_b->state, SI_SB_RDY|SI_SB_DIS) ||
2273 (si_f->flags & SI_FL_ERR && si_f->state != SI_ST_CLO) ||
2274 (si_b->flags & SI_FL_ERR && si_b->state != SI_ST_CLO))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002275 goto resync_stream_interface;
2276
Willy Tarreau3c5c0662019-06-06 14:32:49 +02002277 if ((req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002278 goto resync_request;
2279
Willy Tarreau8f128b42014-11-28 15:07:47 +01002280 if ((res->flags ^ rpf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002281 goto resync_response;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002282
Willy Tarreau829bd472019-06-06 09:17:23 +02002283 if (((req->flags ^ rqf_last) | (res->flags ^ rpf_last)) & CF_MASK_ANALYSER)
2284 goto resync_request;
2285
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002286 /* we're interested in getting wakeups again */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002287 si_f->flags &= ~SI_FL_DONT_WAKE;
2288 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002289
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002290 /* This is needed only when debugging is enabled, to indicate
2291 * client-side or server-side close. Please note that in the unlikely
2292 * event where both sides would close at once, the sequence is reported
2293 * on the server side first.
2294 */
2295 if (unlikely((global.mode & MODE_DEBUG) &&
2296 (!(global.mode & MODE_QUIET) ||
2297 (global.mode & MODE_VERBOSE)))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002298 if (si_b->state == SI_ST_CLO &&
2299 si_b->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002300 chunk_printf(&trash, "%08x:%s.srvcls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002301 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002302 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2303 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01002304 DISGUISE(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002305 }
2306
Willy Tarreau8f128b42014-11-28 15:07:47 +01002307 if (si_f->state == SI_ST_CLO &&
2308 si_f->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002309 chunk_printf(&trash, "%08x:%s.clicls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002310 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002311 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2312 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01002313 DISGUISE(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002314 }
2315 }
2316
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002317 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 +02002318 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED) && !(s->flags & SF_IGNORE))
Willy Tarreau87b09662015-04-03 00:22:06 +02002319 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002320
Willy Tarreaud14844a2018-11-08 18:15:29 +01002321 si_update_both(si_f, si_b);
Olivier Houchard53216e72018-10-10 15:46:36 +02002322
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002323 /* Trick: if a request is being waiting for the server to respond,
2324 * and if we know the server can timeout, we don't want the timeout
2325 * to expire on the client side first, but we're still interested
2326 * in passing data from the client to the server (eg: POST). Thus,
2327 * we can cancel the client's request timeout if the server's
2328 * request timeout is set and the server has not yet sent a response.
2329 */
2330
Willy Tarreau8f128b42014-11-28 15:07:47 +01002331 if ((res->flags & (CF_AUTO_CLOSE|CF_SHUTR)) == 0 &&
2332 (tick_isset(req->wex) || tick_isset(res->rex))) {
2333 req->flags |= CF_READ_NOEXP;
2334 req->rex = TICK_ETERNITY;
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002335 }
2336
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002337 /* Reset pending events now */
2338 s->pending_events = 0;
2339
Willy Tarreau798f4322012-11-08 14:49:17 +01002340 update_exp_and_leave:
Willy Tarreau5fb04712016-05-04 10:18:37 +02002341 /* Note: please ensure that if you branch here you disable SI_FL_DONT_WAKE */
Christopher Fauleta00d8172016-11-10 14:58:05 +01002342 t->expire = tick_first((tick_is_expired(t->expire, now_ms) ? 0 : t->expire),
2343 tick_first(tick_first(req->rex, req->wex),
2344 tick_first(res->rex, res->wex)));
Willy Tarreaudef0d222016-11-08 22:03:00 +01002345 if (!req->analysers)
2346 req->analyse_exp = TICK_ETERNITY;
2347
2348 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED) &&
2349 (!tick_isset(req->analyse_exp) || tick_is_expired(req->analyse_exp, now_ms)))
2350 req->analyse_exp = tick_add(now_ms, 5000);
2351
2352 t->expire = tick_first(t->expire, req->analyse_exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002353
Willy Tarreau9a398be2017-11-10 17:14:23 +01002354 t->expire = tick_first(t->expire, res->analyse_exp);
2355
Willy Tarreau8f128b42014-11-28 15:07:47 +01002356 if (si_f->exp)
2357 t->expire = tick_first(t->expire, si_f->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002358
Willy Tarreau8f128b42014-11-28 15:07:47 +01002359 if (si_b->exp)
2360 t->expire = tick_first(t->expire, si_b->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002361
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002362 s->pending_events &= ~(TASK_WOKEN_TIMER | TASK_WOKEN_RES);
Willy Tarreau87b09662015-04-03 00:22:06 +02002363 stream_release_buffers(s);
Christopher Fauleteea8fc72019-11-05 16:18:10 +01002364
2365 DBG_TRACE_DEVEL("queuing", STRM_EV_STRM_PROC, s);
Willy Tarreau26c25062009-03-08 09:38:41 +01002366 return t; /* nothing more to do */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002367 }
2368
Christopher Fauleteea8fc72019-11-05 16:18:10 +01002369 DBG_TRACE_DEVEL("releasing", STRM_EV_STRM_PROC, s);
2370
Willy Tarreaue7dff022015-04-03 01:14:29 +02002371 if (s->flags & SF_BE_ASSIGNED)
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002372 _HA_ATOMIC_SUB(&s->be->beconn, 1);
Willy Tarreau6f5e4b92017-09-15 09:07:56 +02002373
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002374 if (unlikely((global.mode & MODE_DEBUG) &&
2375 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)))) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002376 chunk_printf(&trash, "%08x:%s.closed[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002377 s->uniq_id, s->be->id,
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002378 objt_cs(si_f->end) ? (unsigned short)objt_cs(si_f->end)->conn->handle.fd : -1,
2379 objt_cs(si_b->end) ? (unsigned short)objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01002380 DISGUISE(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002381 }
2382
2383 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
Olivier Houchard4c18f942019-07-31 18:05:26 +02002384 if (!(s->flags & SF_IGNORE))
2385 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002386
Willy Tarreaueee5b512015-04-03 23:46:31 +02002387 if (s->txn && s->txn->status) {
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002388 int n;
2389
Willy Tarreaueee5b512015-04-03 23:46:31 +02002390 n = s->txn->status / 100;
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002391 if (n < 1 || n > 5)
2392 n = 0;
2393
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002394 if (sess->fe->mode == PR_MODE_HTTP) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002395 _HA_ATOMIC_ADD(&sess->fe->fe_counters.p.http.rsp[n], 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002396 }
Willy Tarreaue7dff022015-04-03 01:14:29 +02002397 if ((s->flags & SF_BE_ASSIGNED) &&
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002398 (s->be->mode == PR_MODE_HTTP)) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002399 _HA_ATOMIC_ADD(&s->be->be_counters.p.http.rsp[n], 1);
2400 _HA_ATOMIC_ADD(&s->be->be_counters.p.http.cum_req, 1);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002401 }
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002402 }
2403
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002404 /* let's do a final log if we need it */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002405 if (!LIST_ISEMPTY(&sess->fe->logformat) && s->logs.logwait &&
Willy Tarreaue7dff022015-04-03 01:14:29 +02002406 !(s->flags & SF_MONITOR) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002407 (!(sess->fe->options & PR_O_NULLNOLOG) || req->total)) {
Willy Tarreau66425e32018-07-25 06:55:12 +02002408 /* we may need to know the position in the queue */
2409 pendconn_free(s);
Willy Tarreaua5555ec2008-11-30 19:02:32 +01002410 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002411 }
2412
Willy Tarreau87b09662015-04-03 00:22:06 +02002413 /* update time stats for this stream */
2414 stream_update_time_stats(s);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002415
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002416 /* the task MUST not be in the run queue anymore */
Willy Tarreau87b09662015-04-03 00:22:06 +02002417 stream_free(s);
Olivier Houchard3f795f72019-04-17 22:51:06 +02002418 task_destroy(t);
Willy Tarreau26c25062009-03-08 09:38:41 +01002419 return NULL;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002420}
2421
Willy Tarreau87b09662015-04-03 00:22:06 +02002422/* Update the stream's backend and server time stats */
2423void stream_update_time_stats(struct stream *s)
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002424{
2425 int t_request;
2426 int t_queue;
2427 int t_connect;
2428 int t_data;
2429 int t_close;
2430 struct server *srv;
Marcin Deraneka8dbdf32020-05-15 20:02:40 +02002431 unsigned int samples_window;
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002432
2433 t_request = 0;
2434 t_queue = s->logs.t_queue;
2435 t_connect = s->logs.t_connect;
2436 t_close = s->logs.t_close;
2437 t_data = s->logs.t_data;
2438
2439 if (s->be->mode != PR_MODE_HTTP)
2440 t_data = t_connect;
2441
2442 if (t_connect < 0 || t_data < 0)
2443 return;
2444
2445 if (tv_isge(&s->logs.tv_request, &s->logs.tv_accept))
2446 t_request = tv_ms_elapsed(&s->logs.tv_accept, &s->logs.tv_request);
2447
2448 t_data -= t_connect;
2449 t_connect -= t_queue;
2450 t_queue -= t_request;
2451
2452 srv = objt_server(s->target);
2453 if (srv) {
Marcin Deraneka8dbdf32020-05-15 20:02:40 +02002454 samples_window = (((s->be->mode == PR_MODE_HTTP) ?
2455 srv->counters.p.http.cum_req : srv->counters.cum_lbconn) > TIME_STATS_SAMPLES) ? TIME_STATS_SAMPLES : 0;
2456 swrate_add_dynamic(&srv->counters.q_time, samples_window, t_queue);
2457 swrate_add_dynamic(&srv->counters.c_time, samples_window, t_connect);
2458 swrate_add_dynamic(&srv->counters.d_time, samples_window, t_data);
2459 swrate_add_dynamic(&srv->counters.t_time, samples_window, t_close);
Christopher Fauletefb41f02019-11-08 14:53:15 +01002460 HA_ATOMIC_UPDATE_MAX(&srv->counters.qtime_max, t_queue);
2461 HA_ATOMIC_UPDATE_MAX(&srv->counters.ctime_max, t_connect);
2462 HA_ATOMIC_UPDATE_MAX(&srv->counters.dtime_max, t_data);
2463 HA_ATOMIC_UPDATE_MAX(&srv->counters.ttime_max, t_close);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002464 }
Marcin Deraneka8dbdf32020-05-15 20:02:40 +02002465 samples_window = (((s->be->mode == PR_MODE_HTTP) ?
2466 s->be->be_counters.p.http.cum_req : s->be->be_counters.cum_lbconn) > TIME_STATS_SAMPLES) ? TIME_STATS_SAMPLES : 0;
2467 swrate_add_dynamic(&s->be->be_counters.q_time, samples_window, t_queue);
2468 swrate_add_dynamic(&s->be->be_counters.c_time, samples_window, t_connect);
2469 swrate_add_dynamic(&s->be->be_counters.d_time, samples_window, t_data);
2470 swrate_add_dynamic(&s->be->be_counters.t_time, samples_window, t_close);
Christopher Fauletefb41f02019-11-08 14:53:15 +01002471 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.qtime_max, t_queue);
2472 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.ctime_max, t_connect);
2473 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.dtime_max, t_data);
2474 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.ttime_max, t_close);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002475}
2476
Willy Tarreau7c669d72008-06-20 15:04:11 +02002477/*
2478 * This function adjusts sess->srv_conn and maintains the previous and new
Willy Tarreau87b09662015-04-03 00:22:06 +02002479 * server's served stream counts. Setting newsrv to NULL is enough to release
Willy Tarreau7c669d72008-06-20 15:04:11 +02002480 * current connection slot. This function also notifies any LB algo which might
Willy Tarreau87b09662015-04-03 00:22:06 +02002481 * expect to be informed about any change in the number of active streams on a
Willy Tarreau7c669d72008-06-20 15:04:11 +02002482 * server.
2483 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002484void sess_change_server(struct stream *sess, struct server *newsrv)
Willy Tarreau7c669d72008-06-20 15:04:11 +02002485{
2486 if (sess->srv_conn == newsrv)
2487 return;
2488
2489 if (sess->srv_conn) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002490 _HA_ATOMIC_SUB(&sess->srv_conn->served, 1);
2491 _HA_ATOMIC_SUB(&sess->srv_conn->proxy->served, 1);
2492 __ha_barrier_atomic_store();
Christopher Faulet26a52af2020-10-16 16:27:17 +02002493 if (sess->srv_conn->proxy->lbprm.server_drop_conn) {
2494 HA_SPIN_LOCK(SERVER_LOCK, &sess->srv_conn->lock);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002495 sess->srv_conn->proxy->lbprm.server_drop_conn(sess->srv_conn);
Christopher Faulet26a52af2020-10-16 16:27:17 +02002496 HA_SPIN_UNLOCK(SERVER_LOCK, &sess->srv_conn->lock);
2497 }
Willy Tarreau87b09662015-04-03 00:22:06 +02002498 stream_del_srv_conn(sess);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002499 }
2500
2501 if (newsrv) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002502 _HA_ATOMIC_ADD(&newsrv->served, 1);
2503 _HA_ATOMIC_ADD(&newsrv->proxy->served, 1);
2504 __ha_barrier_atomic_store();
Christopher Faulet26a52af2020-10-16 16:27:17 +02002505 if (newsrv->proxy->lbprm.server_take_conn) {
2506 HA_SPIN_LOCK(SERVER_LOCK, &newsrv->lock);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002507 newsrv->proxy->lbprm.server_take_conn(newsrv);
Christopher Faulet26a52af2020-10-16 16:27:17 +02002508 HA_SPIN_UNLOCK(SERVER_LOCK, &newsrv->lock);
2509 }
Willy Tarreau87b09662015-04-03 00:22:06 +02002510 stream_add_srv_conn(sess, newsrv);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002511 }
2512}
2513
Willy Tarreau84455332009-03-15 22:34:05 +01002514/* Handle server-side errors for default protocols. It is called whenever a a
2515 * connection setup is aborted or a request is aborted in queue. It sets the
Willy Tarreau87b09662015-04-03 00:22:06 +02002516 * stream termination flags so that the caller does not have to worry about
Willy Tarreau84455332009-03-15 22:34:05 +01002517 * them. It's installed as ->srv_error for the server-side stream_interface.
2518 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002519void default_srv_error(struct stream *s, struct stream_interface *si)
Willy Tarreau84455332009-03-15 22:34:05 +01002520{
2521 int err_type = si->err_type;
2522 int err = 0, fin = 0;
2523
2524 if (err_type & SI_ET_QUEUE_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002525 err = SF_ERR_CLICL;
2526 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002527 }
2528 else if (err_type & SI_ET_CONN_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002529 err = SF_ERR_CLICL;
2530 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002531 }
2532 else if (err_type & SI_ET_QUEUE_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002533 err = SF_ERR_SRVTO;
2534 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002535 }
2536 else if (err_type & SI_ET_QUEUE_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002537 err = SF_ERR_SRVCL;
2538 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002539 }
2540 else if (err_type & SI_ET_CONN_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002541 err = SF_ERR_SRVTO;
2542 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002543 }
2544 else if (err_type & SI_ET_CONN_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002545 err = SF_ERR_SRVCL;
2546 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002547 }
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002548 else if (err_type & SI_ET_CONN_RES) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002549 err = SF_ERR_RESOURCE;
2550 fin = SF_FINST_C;
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002551 }
Willy Tarreau84455332009-03-15 22:34:05 +01002552 else /* SI_ET_CONN_OTHER and others */ {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002553 err = SF_ERR_INTERNAL;
2554 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002555 }
2556
Willy Tarreaue7dff022015-04-03 01:14:29 +02002557 if (!(s->flags & SF_ERR_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002558 s->flags |= err;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002559 if (!(s->flags & SF_FINST_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002560 s->flags |= fin;
2561}
Willy Tarreau7c669d72008-06-20 15:04:11 +02002562
Willy Tarreaue7dff022015-04-03 01:14:29 +02002563/* kill a stream and set the termination flags to <why> (one of SF_ERR_*) */
Willy Tarreau87b09662015-04-03 00:22:06 +02002564void stream_shutdown(struct stream *stream, int why)
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002565{
Willy Tarreau87b09662015-04-03 00:22:06 +02002566 if (stream->req.flags & (CF_SHUTW|CF_SHUTW_NOW))
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002567 return;
2568
Willy Tarreau87b09662015-04-03 00:22:06 +02002569 channel_shutw_now(&stream->req);
2570 channel_shutr_now(&stream->res);
2571 stream->task->nice = 1024;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002572 if (!(stream->flags & SF_ERR_MASK))
Willy Tarreau87b09662015-04-03 00:22:06 +02002573 stream->flags |= why;
2574 task_wakeup(stream->task, TASK_WOKEN_OTHER);
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002575}
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02002576
Willy Tarreau5484d582019-05-22 09:33:03 +02002577/* Appends a dump of the state of stream <s> into buffer <buf> which must have
2578 * preliminary be prepared by its caller, with each line prepended by prefix
2579 * <pfx>, and each line terminated by character <eol>.
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002580 */
Willy Tarreau5484d582019-05-22 09:33:03 +02002581void stream_dump(struct buffer *buf, const struct stream *s, const char *pfx, char eol)
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002582{
2583 const struct conn_stream *csf, *csb;
2584 const struct connection *cof, *cob;
2585 const struct appctx *acf, *acb;
2586 const struct server *srv;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002587 const char *src = "unknown";
2588 const char *dst = "unknown";
2589 char pn[INET6_ADDRSTRLEN];
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002590 const struct channel *req, *res;
2591 const struct stream_interface *si_f, *si_b;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002592
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002593 if (!s) {
Willy Tarreau5484d582019-05-22 09:33:03 +02002594 chunk_appendf(buf, "%sstrm=%p%c", pfx, s, eol);
2595 return;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002596 }
2597
Willy Tarreau5484d582019-05-22 09:33:03 +02002598 if (s->obj_type != OBJ_TYPE_STREAM) {
2599 chunk_appendf(buf, "%sstrm=%p [invalid type=%d(%s)]%c",
2600 pfx, s, s->obj_type, obj_type_name(&s->obj_type), eol);
2601 return;
2602 }
2603
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002604 si_f = &s->si[0];
2605 si_b = &s->si[1];
2606 req = &s->req;
2607 res = &s->res;
2608
2609 csf = objt_cs(si_f->end);
2610 cof = cs_conn(csf);
2611 acf = objt_appctx(si_f->end);
Willy Tarreau71e34c12019-07-17 15:07:06 +02002612 if (cof && cof->src && addr_to_str(cof->src, pn, sizeof(pn)) >= 0)
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002613 src = pn;
2614 else if (acf)
2615 src = acf->applet->name;
2616
2617 csb = objt_cs(si_b->end);
2618 cob = cs_conn(csb);
2619 acb = objt_appctx(si_b->end);
2620 srv = objt_server(s->target);
2621 if (srv)
2622 dst = srv->id;
2623 else if (acb)
2624 dst = acb->applet->name;
2625
Willy Tarreau5484d582019-05-22 09:33:03 +02002626 chunk_appendf(buf,
2627 "%sstrm=%p src=%s fe=%s be=%s dst=%s%c"
2628 "%srqf=%x rqa=%x rpf=%x rpa=%x sif=%s,%x sib=%s,%x%c"
2629 "%saf=%p,%u csf=%p,%x%c"
2630 "%sab=%p,%u csb=%p,%x%c"
2631 "%scof=%p,%x:%s(%p)/%s(%p)/%s(%d)%c"
2632 "%scob=%p,%x:%s(%p)/%s(%p)/%s(%d)%c"
2633 "",
2634 pfx, s, src, s->sess->fe->id, s->be->id, dst, eol,
2635 pfx, req->flags, req->analysers, res->flags, res->analysers,
2636 si_state_str(si_f->state), si_f->flags,
2637 si_state_str(si_b->state), si_b->flags, eol,
2638 pfx, acf, acf ? acf->st0 : 0, csf, csf ? csf->flags : 0, eol,
2639 pfx, acb, acb ? acb->st0 : 0, csb, csb ? csb->flags : 0, eol,
2640 pfx, cof, cof ? cof->flags : 0, conn_get_mux_name(cof), cof?cof->ctx:0, conn_get_xprt_name(cof),
2641 cof ? cof->xprt_ctx : 0, conn_get_ctrl_name(cof), cof ? cof->handle.fd : 0, eol,
2642 pfx, cob, cob ? cob->flags : 0, conn_get_mux_name(cob), cob?cob->ctx:0, conn_get_xprt_name(cob),
2643 cob ? cob->xprt_ctx : 0, conn_get_ctrl_name(cob), cob ? cob->handle.fd : 0, eol);
2644}
2645
2646/* dumps an error message for type <type> at ptr <ptr> related to stream <s>,
Willy Tarreaub106ce12019-05-22 08:57:01 +02002647 * having reached loop rate <rate>, then aborts hoping to retrieve a core.
Willy Tarreau5484d582019-05-22 09:33:03 +02002648 */
2649void stream_dump_and_crash(enum obj_type *obj, int rate)
2650{
2651 const struct stream *s;
Willy Tarreau5484d582019-05-22 09:33:03 +02002652 char *msg = NULL;
2653 const void *ptr;
2654
2655 ptr = s = objt_stream(obj);
2656 if (!s) {
2657 const struct appctx *appctx = objt_appctx(obj);
2658 if (!appctx)
2659 return;
2660 ptr = appctx;
2661 s = si_strm(appctx->owner);
2662 if (!s)
2663 return;
2664 }
2665
Willy Tarreau5484d582019-05-22 09:33:03 +02002666 chunk_reset(&trash);
2667 stream_dump(&trash, s, "", ' ');
Willy Tarreau9753d612020-05-01 16:57:02 +02002668
2669 chunk_appendf(&trash, "filters={");
2670 if (HAS_FILTERS(s)) {
2671 struct filter *filter;
2672
2673 list_for_each_entry(filter, &s->strm_flt.filters, list) {
2674 if (filter->list.p != &s->strm_flt.filters)
2675 chunk_appendf(&trash, ", ");
2676 chunk_appendf(&trash, "%p=\"%s\"", filter, FLT_ID(filter));
2677 }
2678 }
2679 chunk_appendf(&trash, "}");
2680
Willy Tarreaub106ce12019-05-22 08:57:01 +02002681 memprintf(&msg,
2682 "A bogus %s [%p] is spinning at %d calls per second and refuses to die, "
2683 "aborting now! Please report this error to developers "
2684 "[%s]\n",
Willy Tarreau5484d582019-05-22 09:33:03 +02002685 obj_type_name(obj), ptr, rate, trash.area);
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002686
2687 ha_alert("%s", msg);
2688 send_log(NULL, LOG_EMERG, "%s", msg);
2689 abort();
2690}
2691
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002692/* Generates a unique ID based on the given <format>, stores it in the given <strm> and
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002693 * returns the unique ID.
2694
2695 * If this function fails to allocate memory IST_NULL is returned.
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002696 *
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002697 * If an ID is already stored within the stream nothing happens existing unique ID is
2698 * returned.
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002699 */
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002700struct ist stream_generate_unique_id(struct stream *strm, struct list *format)
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002701{
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002702 if (isttest(strm->unique_id)) {
2703 return strm->unique_id;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002704 }
2705 else {
2706 char *unique_id;
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002707 int length;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002708 if ((unique_id = pool_alloc(pool_head_uniqueid)) == NULL)
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002709 return IST_NULL;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002710
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002711 length = build_logline(strm, unique_id, UNIQUEID_LEN, format);
2712 strm->unique_id = ist2(unique_id, length);
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002713
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002714 return strm->unique_id;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002715 }
2716}
2717
Willy Tarreau8b22a712010-06-18 17:46:06 +02002718/************************************************************************/
2719/* All supported ACL keywords must be declared here. */
2720/************************************************************************/
2721
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02002722/* 0=OK, <0=Alert, >0=Warning */
2723static enum act_parse_ret stream_parse_use_service(const char **args, int *cur_arg,
2724 struct proxy *px, struct act_rule *rule,
2725 char **err)
2726{
2727 struct action_kw *kw;
2728
2729 /* Check if the service name exists. */
2730 if (*(args[*cur_arg]) == 0) {
2731 memprintf(err, "'%s' expects a service name.", args[0]);
Thierry FOURNIER337eae12015-11-26 19:48:04 +01002732 return ACT_RET_PRS_ERR;
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02002733 }
2734
2735 /* lookup for keyword corresponding to a service. */
2736 kw = action_lookup(&service_keywords, args[*cur_arg]);
2737 if (!kw) {
2738 memprintf(err, "'%s' unknown service name.", args[1]);
2739 return ACT_RET_PRS_ERR;
2740 }
2741 (*cur_arg)++;
2742
2743 /* executes specific rule parser. */
2744 rule->kw = kw;
2745 if (kw->parse((const char **)args, cur_arg, px, rule, err) == ACT_RET_PRS_ERR)
2746 return ACT_RET_PRS_ERR;
2747
2748 /* Register processing function. */
2749 rule->action_ptr = process_use_service;
2750 rule->action = ACT_CUSTOM;
2751
2752 return ACT_RET_PRS_OK;
2753}
2754
2755void service_keywords_register(struct action_kw_list *kw_list)
2756{
2757 LIST_ADDQ(&service_keywords, &kw_list->list);
2758}
2759
Thierry Fournier87e53992020-11-28 19:32:14 +01002760struct action_kw *service_find(const char *kw)
2761{
2762 return action_lookup(&service_keywords, kw);
2763}
2764
Willy Tarreau679bba12019-03-19 08:08:10 +01002765/* Lists the known services on <out> */
2766void list_services(FILE *out)
2767{
2768 struct action_kw_list *kw_list;
2769 int found = 0;
2770 int i;
2771
2772 fprintf(out, "Available services :");
2773 list_for_each_entry(kw_list, &service_keywords, list) {
2774 for (i = 0; kw_list->kw[i].kw != NULL; i++) {
2775 if (!found)
2776 fputc('\n', out);
2777 found = 1;
2778 fprintf(out, "\t%s\n", kw_list->kw[i].kw);
2779 }
2780 }
2781 if (!found)
2782 fprintf(out, " none\n");
2783}
William Lallemand4c5b4d52016-11-21 08:51:11 +01002784
2785/* This function dumps a complete stream state onto the stream interface's
2786 * read buffer. The stream has to be set in strm. It returns 0 if the output
2787 * buffer is full and it needs to be called again, otherwise non-zero. It is
2788 * designed to be called from stats_dump_strm_to_buffer() below.
2789 */
2790static int stats_dump_full_strm_to_buffer(struct stream_interface *si, struct stream *strm)
2791{
2792 struct appctx *appctx = __objt_appctx(si->end);
2793 struct tm tm;
2794 extern const char *monthname[12];
2795 char pn[INET6_ADDRSTRLEN];
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002796 struct conn_stream *cs;
William Lallemand4c5b4d52016-11-21 08:51:11 +01002797 struct connection *conn;
2798 struct appctx *tmpctx;
2799
2800 chunk_reset(&trash);
2801
2802 if (appctx->ctx.sess.section > 0 && appctx->ctx.sess.uid != strm->uniq_id) {
2803 /* stream changed, no need to go any further */
2804 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
Willy Tarreaue6e52362019-01-04 17:42:57 +01002805 if (ci_putchk(si_ic(si), &trash) == -1)
2806 goto full;
2807 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01002808 }
2809
2810 switch (appctx->ctx.sess.section) {
2811 case 0: /* main status of the stream */
2812 appctx->ctx.sess.uid = strm->uniq_id;
2813 appctx->ctx.sess.section = 1;
2814 /* fall through */
2815
2816 case 1:
2817 get_localtime(strm->logs.accept_date.tv_sec, &tm);
2818 chunk_appendf(&trash,
2819 "%p: [%02d/%s/%04d:%02d:%02d:%02d.%06d] id=%u proto=%s",
2820 strm,
2821 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
2822 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(strm->logs.accept_date.tv_usec),
2823 strm->uniq_id,
Willy Tarreaub7436612020-08-28 19:51:44 +02002824 strm_li(strm) ? strm_li(strm)->rx.proto->name : "?");
William Lallemand4c5b4d52016-11-21 08:51:11 +01002825
2826 conn = objt_conn(strm_orig(strm));
Willy Tarreau71e34c12019-07-17 15:07:06 +02002827 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002828 case AF_INET:
2829 case AF_INET6:
2830 chunk_appendf(&trash, " source=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002831 pn, get_host_port(conn->src));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002832 break;
2833 case AF_UNIX:
2834 chunk_appendf(&trash, " source=unix:%d\n", strm_li(strm)->luid);
2835 break;
2836 default:
2837 /* no more information to print right now */
2838 chunk_appendf(&trash, "\n");
2839 break;
2840 }
2841
2842 chunk_appendf(&trash,
Willy Tarreauadf7a152019-01-07 10:10:07 +01002843 " flags=0x%x, conn_retries=%d, srv_conn=%p, pend_pos=%p waiting=%d\n",
2844 strm->flags, strm->si[1].conn_retries, strm->srv_conn, strm->pend_pos,
Willy Tarreau21046592020-02-26 10:39:36 +01002845 MT_LIST_ADDED(&strm->buffer_wait.list));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002846
2847 chunk_appendf(&trash,
2848 " frontend=%s (id=%u mode=%s), listener=%s (id=%u)",
2849 strm_fe(strm)->id, strm_fe(strm)->uuid, strm_fe(strm)->mode ? "http" : "tcp",
2850 strm_li(strm) ? strm_li(strm)->name ? strm_li(strm)->name : "?" : "?",
2851 strm_li(strm) ? strm_li(strm)->luid : 0);
2852
Willy Tarreau71e34c12019-07-17 15:07:06 +02002853 switch (conn && conn_get_dst(conn) ? addr_to_str(conn->dst, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002854 case AF_INET:
2855 case AF_INET6:
2856 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002857 pn, get_host_port(conn->dst));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002858 break;
2859 case AF_UNIX:
2860 chunk_appendf(&trash, " addr=unix:%d\n", strm_li(strm)->luid);
2861 break;
2862 default:
2863 /* no more information to print right now */
2864 chunk_appendf(&trash, "\n");
2865 break;
2866 }
2867
2868 if (strm->be->cap & PR_CAP_BE)
2869 chunk_appendf(&trash,
2870 " backend=%s (id=%u mode=%s)",
2871 strm->be->id,
2872 strm->be->uuid, strm->be->mode ? "http" : "tcp");
2873 else
2874 chunk_appendf(&trash, " backend=<NONE> (id=-1 mode=-)");
2875
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002876 cs = objt_cs(strm->si[1].end);
2877 conn = cs_conn(cs);
2878
Willy Tarreau71e34c12019-07-17 15:07:06 +02002879 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002880 case AF_INET:
2881 case AF_INET6:
2882 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002883 pn, get_host_port(conn->src));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002884 break;
2885 case AF_UNIX:
2886 chunk_appendf(&trash, " addr=unix\n");
2887 break;
2888 default:
2889 /* no more information to print right now */
2890 chunk_appendf(&trash, "\n");
2891 break;
2892 }
2893
2894 if (strm->be->cap & PR_CAP_BE)
2895 chunk_appendf(&trash,
2896 " server=%s (id=%u)",
2897 objt_server(strm->target) ? objt_server(strm->target)->id : "<none>",
2898 objt_server(strm->target) ? objt_server(strm->target)->puid : 0);
2899 else
2900 chunk_appendf(&trash, " server=<NONE> (id=-1)");
2901
Willy Tarreau71e34c12019-07-17 15:07:06 +02002902 switch (conn && conn_get_dst(conn) ? addr_to_str(conn->dst, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01002903 case AF_INET:
2904 case AF_INET6:
2905 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02002906 pn, get_host_port(conn->dst));
William Lallemand4c5b4d52016-11-21 08:51:11 +01002907 break;
2908 case AF_UNIX:
2909 chunk_appendf(&trash, " addr=unix\n");
2910 break;
2911 default:
2912 /* no more information to print right now */
2913 chunk_appendf(&trash, "\n");
2914 break;
2915 }
2916
2917 chunk_appendf(&trash,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02002918 " task=%p (state=0x%02x nice=%d calls=%u rate=%u exp=%s tmask=0x%lx%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002919 strm->task,
2920 strm->task->state,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02002921 strm->task->nice, strm->task->calls, read_freq_ctr(&strm->call_rate),
William Lallemand4c5b4d52016-11-21 08:51:11 +01002922 strm->task->expire ?
2923 tick_is_expired(strm->task->expire, now_ms) ? "<PAST>" :
2924 human_time(TICKS_TO_MS(strm->task->expire - now_ms),
2925 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Fauletf0205062017-11-15 20:56:43 +01002926 strm->task->thread_mask,
William Lallemand4c5b4d52016-11-21 08:51:11 +01002927 task_in_rq(strm->task) ? ", running" : "");
2928
2929 chunk_appendf(&trash,
2930 " age=%s)\n",
2931 human_time(now.tv_sec - strm->logs.accept_date.tv_sec, 1));
2932
2933 if (strm->txn)
2934 chunk_appendf(&trash,
Christopher Fauletbcac7862019-07-17 10:46:50 +02002935 " 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 +01002936 strm->txn, strm->txn->flags, strm->txn->meth, strm->txn->status,
Willy Tarreau7778b592019-01-07 10:38:10 +01002937 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 +02002938 strm->txn->req.flags, strm->txn->rsp.flags);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002939
2940 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01002941 " 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 +01002942 &strm->si[0],
2943 si_state_str(strm->si[0].state),
2944 strm->si[0].flags,
2945 obj_type_name(strm->si[0].end),
2946 obj_base_ptr(strm->si[0].end),
2947 strm->si[0].exp ?
2948 tick_is_expired(strm->si[0].exp, now_ms) ? "<PAST>" :
2949 human_time(TICKS_TO_MS(strm->si[0].exp - now_ms),
2950 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01002951 strm->si[0].err_type, strm->si[0].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002952
2953 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01002954 " 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 +01002955 &strm->si[1],
2956 si_state_str(strm->si[1].state),
2957 strm->si[1].flags,
2958 obj_type_name(strm->si[1].end),
2959 obj_base_ptr(strm->si[1].end),
2960 strm->si[1].exp ?
2961 tick_is_expired(strm->si[1].exp, now_ms) ? "<PAST>" :
2962 human_time(TICKS_TO_MS(strm->si[1].exp - now_ms),
2963 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01002964 strm->si[1].err_type, strm->si[1].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002965
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002966 if ((cs = objt_cs(strm->si[0].end)) != NULL) {
2967 conn = cs->conn;
2968
William Lallemand4c5b4d52016-11-21 08:51:11 +01002969 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02002970 " co0=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002971 conn,
2972 conn_get_ctrl_name(conn),
2973 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02002974 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02002975 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01002976 obj_type_name(conn->target),
2977 obj_base_ptr(conn->target));
2978
2979 chunk_appendf(&trash,
Willy Tarreau76913d32019-08-30 14:33:11 +02002980 " flags=0x%08x fd=%d fd.state=%02x updt=%d fd.tmask=0x%lx\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01002981 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02002982 conn->handle.fd,
2983 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01002984 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01002985 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01002986
2987 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01002988 }
2989 else if ((tmpctx = objt_appctx(strm->si[0].end)) != NULL) {
2990 chunk_appendf(&trash,
Willy Tarreau22d63a22019-04-24 08:41:29 +02002991 " 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 +01002992 tmpctx,
2993 tmpctx->st0,
2994 tmpctx->st1,
2995 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01002996 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02002997 tmpctx->thread_mask,
Willy Tarreau22d63a22019-04-24 08:41:29 +02002998 tmpctx->t->nice, tmpctx->t->calls, read_freq_ctr(&tmpctx->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02002999 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003000 }
3001
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003002 if ((cs = objt_cs(strm->si[1].end)) != NULL) {
3003 conn = cs->conn;
3004
William Lallemand4c5b4d52016-11-21 08:51:11 +01003005 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02003006 " co1=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003007 conn,
3008 conn_get_ctrl_name(conn),
3009 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02003010 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003011 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003012 obj_type_name(conn->target),
3013 obj_base_ptr(conn->target));
3014
3015 chunk_appendf(&trash,
Willy Tarreau76913d32019-08-30 14:33:11 +02003016 " flags=0x%08x fd=%d fd.state=%02x updt=%d fd.tmask=0x%lx\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003017 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003018 conn->handle.fd,
3019 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01003020 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01003021 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01003022
3023 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003024 }
3025 else if ((tmpctx = objt_appctx(strm->si[1].end)) != NULL) {
3026 chunk_appendf(&trash,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003027 " 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 +01003028 tmpctx,
3029 tmpctx->st0,
3030 tmpctx->st1,
3031 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01003032 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02003033 tmpctx->thread_mask,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003034 tmpctx->t->nice, tmpctx->t->calls, read_freq_ctr(&tmpctx->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003035 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003036 }
3037
3038 chunk_appendf(&trash,
3039 " req=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
3040 " an_exp=%s",
3041 &strm->req,
3042 strm->req.flags, strm->req.analysers,
3043 strm->req.pipe ? strm->req.pipe->data : 0,
3044 strm->req.to_forward, strm->req.total,
3045 strm->req.analyse_exp ?
3046 human_time(TICKS_TO_MS(strm->req.analyse_exp - now_ms),
3047 TICKS_TO_MS(1000)) : "<NEVER>");
3048
3049 chunk_appendf(&trash,
3050 " rex=%s",
3051 strm->req.rex ?
3052 human_time(TICKS_TO_MS(strm->req.rex - now_ms),
3053 TICKS_TO_MS(1000)) : "<NEVER>");
3054
3055 chunk_appendf(&trash,
3056 " wex=%s\n"
Christopher Fauletbcac7862019-07-17 10:46:50 +02003057 " buf=%p data=%p o=%u p=%u i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003058 strm->req.wex ?
3059 human_time(TICKS_TO_MS(strm->req.wex - now_ms),
3060 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003061 &strm->req.buf,
3062 b_orig(&strm->req.buf), (unsigned int)co_data(&strm->req),
Christopher Fauletbcac7862019-07-17 10:46:50 +02003063 (unsigned int)ci_head_ofs(&strm->req), (unsigned int)ci_data(&strm->req),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003064 (unsigned int)strm->req.buf.size);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003065
Christopher Fauletb9af8812019-01-04 14:30:44 +01003066 if (IS_HTX_STRM(strm)) {
3067 struct htx *htx = htxbuf(&strm->req.buf);
3068
3069 chunk_appendf(&trash,
Willy Tarreaub84e67f2019-01-07 10:01:34 +01003070 " htx=%p flags=0x%x size=%u data=%u used=%u wrap=%s extra=%llu\n",
Christopher Faulet192c6a22019-06-11 16:32:24 +02003071 htx, htx->flags, htx->size, htx->data, htx_nbblks(htx),
Christopher Faulet28f29c72019-04-30 17:55:45 +02003072 (htx->tail >= htx->head) ? "NO" : "YES",
Christopher Fauletb9af8812019-01-04 14:30:44 +01003073 (unsigned long long)htx->extra);
3074 }
3075
William Lallemand4c5b4d52016-11-21 08:51:11 +01003076 chunk_appendf(&trash,
3077 " res=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
3078 " an_exp=%s",
3079 &strm->res,
3080 strm->res.flags, strm->res.analysers,
3081 strm->res.pipe ? strm->res.pipe->data : 0,
3082 strm->res.to_forward, strm->res.total,
3083 strm->res.analyse_exp ?
3084 human_time(TICKS_TO_MS(strm->res.analyse_exp - now_ms),
3085 TICKS_TO_MS(1000)) : "<NEVER>");
3086
3087 chunk_appendf(&trash,
3088 " rex=%s",
3089 strm->res.rex ?
3090 human_time(TICKS_TO_MS(strm->res.rex - now_ms),
3091 TICKS_TO_MS(1000)) : "<NEVER>");
3092
3093 chunk_appendf(&trash,
3094 " wex=%s\n"
Christopher Fauletbcac7862019-07-17 10:46:50 +02003095 " buf=%p data=%p o=%u p=%u i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003096 strm->res.wex ?
3097 human_time(TICKS_TO_MS(strm->res.wex - now_ms),
3098 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003099 &strm->res.buf,
3100 b_orig(&strm->res.buf), (unsigned int)co_data(&strm->res),
Christopher Fauletbcac7862019-07-17 10:46:50 +02003101 (unsigned int)ci_head_ofs(&strm->res), (unsigned int)ci_data(&strm->res),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003102 (unsigned int)strm->res.buf.size);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003103
Christopher Fauletb9af8812019-01-04 14:30:44 +01003104 if (IS_HTX_STRM(strm)) {
3105 struct htx *htx = htxbuf(&strm->res.buf);
3106
3107 chunk_appendf(&trash,
3108 " htx=%p flags=0x%x size=%u data=%u used=%u wrap=%s extra=%llu\n",
Christopher Faulet192c6a22019-06-11 16:32:24 +02003109 htx, htx->flags, htx->size, htx->data, htx_nbblks(htx),
Christopher Faulet28f29c72019-04-30 17:55:45 +02003110 (htx->tail >= htx->head) ? "NO" : "YES",
Christopher Fauletb9af8812019-01-04 14:30:44 +01003111 (unsigned long long)htx->extra);
3112 }
3113
Willy Tarreaue6e52362019-01-04 17:42:57 +01003114 if (ci_putchk(si_ic(si), &trash) == -1)
3115 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003116
3117 /* use other states to dump the contents */
3118 }
3119 /* end of dump */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003120 done:
William Lallemand4c5b4d52016-11-21 08:51:11 +01003121 appctx->ctx.sess.uid = 0;
3122 appctx->ctx.sess.section = 0;
3123 return 1;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003124 full:
3125 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003126}
3127
3128
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003129static int cli_parse_show_sess(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemand4c5b4d52016-11-21 08:51:11 +01003130{
William Lallemand4c5b4d52016-11-21 08:51:11 +01003131 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
3132 return 1;
3133
3134 if (*args[2] && strcmp(args[2], "all") == 0)
3135 appctx->ctx.sess.target = (void *)-1;
3136 else if (*args[2])
3137 appctx->ctx.sess.target = (void *)strtoul(args[2], NULL, 0);
3138 else
3139 appctx->ctx.sess.target = NULL;
3140 appctx->ctx.sess.section = 0; /* start with stream status */
3141 appctx->ctx.sess.pos = 0;
3142
Willy Tarreauc6e7a1b2020-06-28 01:24:12 +02003143 /* we need to put an end marker into the streams list. We're just moving
3144 * ourselves there, so that once we found ourselves we know we've reached
3145 * the end. Without this we can run forever if new streams arrive faster
3146 * than we can dump them.
3147 */
3148 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
3149 LIST_DEL(&si_strm(appctx->owner)->list);
3150 LIST_ADDQ(&streams, &si_strm(appctx->owner)->list);
3151 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003152 return 0;
3153}
3154
3155/* This function dumps all streams' states onto the stream interface's
3156 * read buffer. It returns 0 if the output buffer is full and it needs
Willy Tarreaue6e52362019-01-04 17:42:57 +01003157 * to be called again, otherwise non-zero. It proceeds in an isolated
3158 * thread so there is no thread safety issue here.
William Lallemand4c5b4d52016-11-21 08:51:11 +01003159 */
3160static int cli_io_handler_dump_sess(struct appctx *appctx)
3161{
3162 struct stream_interface *si = appctx->owner;
3163 struct connection *conn;
3164
Willy Tarreaue6e52362019-01-04 17:42:57 +01003165 thread_isolate();
3166
William Lallemand4c5b4d52016-11-21 08:51:11 +01003167 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW))) {
3168 /* If we're forced to shut down, we might have to remove our
3169 * reference to the last stream being dumped.
3170 */
3171 if (appctx->st2 == STAT_ST_LIST) {
3172 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users)) {
3173 LIST_DEL(&appctx->ctx.sess.bref.users);
3174 LIST_INIT(&appctx->ctx.sess.bref.users);
3175 }
3176 }
Willy Tarreaue6e52362019-01-04 17:42:57 +01003177 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003178 }
3179
3180 chunk_reset(&trash);
3181
3182 switch (appctx->st2) {
3183 case STAT_ST_INIT:
3184 /* the function had not been called yet, let's prepare the
3185 * buffer for a response. We initialize the current stream
3186 * pointer to the first in the global list. When a target
3187 * stream is being destroyed, it is responsible for updating
3188 * this pointer. We know we have reached the end when this
3189 * pointer points back to the head of the streams list.
3190 */
3191 LIST_INIT(&appctx->ctx.sess.bref.users);
3192 appctx->ctx.sess.bref.ref = streams.n;
3193 appctx->st2 = STAT_ST_LIST;
3194 /* fall through */
3195
3196 case STAT_ST_LIST:
3197 /* first, let's detach the back-ref from a possible previous stream */
3198 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users)) {
3199 LIST_DEL(&appctx->ctx.sess.bref.users);
3200 LIST_INIT(&appctx->ctx.sess.bref.users);
3201 }
3202
Willy Tarreauc6e7a1b2020-06-28 01:24:12 +02003203 /* and start from where we stopped, never going further than ourselves */
3204 while (appctx->ctx.sess.bref.ref != si_strm(appctx->owner)->list.n) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003205 char pn[INET6_ADDRSTRLEN];
3206 struct stream *curr_strm;
3207
3208 curr_strm = LIST_ELEM(appctx->ctx.sess.bref.ref, struct stream *, list);
3209
3210 if (appctx->ctx.sess.target) {
3211 if (appctx->ctx.sess.target != (void *)-1 && appctx->ctx.sess.target != curr_strm)
3212 goto next_sess;
3213
3214 LIST_ADDQ(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
3215 /* call the proper dump() function and return if we're missing space */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003216 if (!stats_dump_full_strm_to_buffer(si, curr_strm))
3217 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003218
3219 /* stream dump complete */
3220 LIST_DEL(&appctx->ctx.sess.bref.users);
3221 LIST_INIT(&appctx->ctx.sess.bref.users);
3222 if (appctx->ctx.sess.target != (void *)-1) {
3223 appctx->ctx.sess.target = NULL;
3224 break;
3225 }
3226 else
3227 goto next_sess;
3228 }
3229
3230 chunk_appendf(&trash,
3231 "%p: proto=%s",
3232 curr_strm,
Willy Tarreaub7436612020-08-28 19:51:44 +02003233 strm_li(curr_strm) ? strm_li(curr_strm)->rx.proto->name : "?");
William Lallemand4c5b4d52016-11-21 08:51:11 +01003234
3235 conn = objt_conn(strm_orig(curr_strm));
Willy Tarreau71e34c12019-07-17 15:07:06 +02003236 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003237 case AF_INET:
3238 case AF_INET6:
3239 chunk_appendf(&trash,
3240 " src=%s:%d fe=%s be=%s srv=%s",
3241 pn,
Willy Tarreau71e34c12019-07-17 15:07:06 +02003242 get_host_port(conn->src),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003243 strm_fe(curr_strm)->id,
3244 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
3245 objt_server(curr_strm->target) ? objt_server(curr_strm->target)->id : "<none>"
3246 );
3247 break;
3248 case AF_UNIX:
3249 chunk_appendf(&trash,
3250 " src=unix:%d fe=%s be=%s srv=%s",
3251 strm_li(curr_strm)->luid,
3252 strm_fe(curr_strm)->id,
3253 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
3254 objt_server(curr_strm->target) ? objt_server(curr_strm->target)->id : "<none>"
3255 );
3256 break;
3257 }
3258
3259 chunk_appendf(&trash,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003260 " ts=%02x age=%s calls=%u rate=%u cpu=%llu lat=%llu",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003261 curr_strm->task->state,
3262 human_time(now.tv_sec - curr_strm->logs.tv_accept.tv_sec, 1),
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003263 curr_strm->task->calls, read_freq_ctr(&curr_strm->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003264 (unsigned long long)curr_strm->task->cpu_time, (unsigned long long)curr_strm->task->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003265
3266 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003267 " rq[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003268 curr_strm->req.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003269 (unsigned int)ci_data(&curr_strm->req),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003270 curr_strm->req.analysers,
3271 curr_strm->req.rex ?
3272 human_time(TICKS_TO_MS(curr_strm->req.rex - now_ms),
3273 TICKS_TO_MS(1000)) : "");
3274
3275 chunk_appendf(&trash,
3276 ",wx=%s",
3277 curr_strm->req.wex ?
3278 human_time(TICKS_TO_MS(curr_strm->req.wex - now_ms),
3279 TICKS_TO_MS(1000)) : "");
3280
3281 chunk_appendf(&trash,
3282 ",ax=%s]",
3283 curr_strm->req.analyse_exp ?
3284 human_time(TICKS_TO_MS(curr_strm->req.analyse_exp - now_ms),
3285 TICKS_TO_MS(1000)) : "");
3286
3287 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003288 " rp[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003289 curr_strm->res.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003290 (unsigned int)ci_data(&curr_strm->res),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003291 curr_strm->res.analysers,
3292 curr_strm->res.rex ?
3293 human_time(TICKS_TO_MS(curr_strm->res.rex - now_ms),
3294 TICKS_TO_MS(1000)) : "");
3295
3296 chunk_appendf(&trash,
3297 ",wx=%s",
3298 curr_strm->res.wex ?
3299 human_time(TICKS_TO_MS(curr_strm->res.wex - now_ms),
3300 TICKS_TO_MS(1000)) : "");
3301
3302 chunk_appendf(&trash,
3303 ",ax=%s]",
3304 curr_strm->res.analyse_exp ?
3305 human_time(TICKS_TO_MS(curr_strm->res.analyse_exp - now_ms),
3306 TICKS_TO_MS(1000)) : "");
3307
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003308 conn = cs_conn(objt_cs(curr_strm->si[0].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003309 chunk_appendf(&trash,
3310 " s0=[%d,%1xh,fd=%d,ex=%s]",
3311 curr_strm->si[0].state,
3312 curr_strm->si[0].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003313 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003314 curr_strm->si[0].exp ?
3315 human_time(TICKS_TO_MS(curr_strm->si[0].exp - now_ms),
3316 TICKS_TO_MS(1000)) : "");
3317
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003318 conn = cs_conn(objt_cs(curr_strm->si[1].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003319 chunk_appendf(&trash,
3320 " s1=[%d,%1xh,fd=%d,ex=%s]",
3321 curr_strm->si[1].state,
3322 curr_strm->si[1].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003323 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003324 curr_strm->si[1].exp ?
3325 human_time(TICKS_TO_MS(curr_strm->si[1].exp - now_ms),
3326 TICKS_TO_MS(1000)) : "");
3327
3328 chunk_appendf(&trash,
3329 " exp=%s",
3330 curr_strm->task->expire ?
3331 human_time(TICKS_TO_MS(curr_strm->task->expire - now_ms),
3332 TICKS_TO_MS(1000)) : "");
3333 if (task_in_rq(curr_strm->task))
3334 chunk_appendf(&trash, " run(nice=%d)", curr_strm->task->nice);
3335
3336 chunk_appendf(&trash, "\n");
3337
Willy Tarreau06d80a92017-10-19 14:32:15 +02003338 if (ci_putchk(si_ic(si), &trash) == -1) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003339 /* let's try again later from this stream. We add ourselves into
3340 * this stream's users so that it can remove us upon termination.
3341 */
William Lallemand4c5b4d52016-11-21 08:51:11 +01003342 LIST_ADDQ(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
Willy Tarreaue6e52362019-01-04 17:42:57 +01003343 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003344 }
3345
3346 next_sess:
3347 appctx->ctx.sess.bref.ref = curr_strm->list.n;
3348 }
3349
3350 if (appctx->ctx.sess.target && appctx->ctx.sess.target != (void *)-1) {
3351 /* specified stream not found */
3352 if (appctx->ctx.sess.section > 0)
3353 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
3354 else
3355 chunk_appendf(&trash, "Session not found.\n");
3356
Willy Tarreaue6e52362019-01-04 17:42:57 +01003357 if (ci_putchk(si_ic(si), &trash) == -1)
3358 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003359
3360 appctx->ctx.sess.target = NULL;
3361 appctx->ctx.sess.uid = 0;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003362 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003363 }
William Lallemand4c5b4d52016-11-21 08:51:11 +01003364 /* fall through */
3365
3366 default:
3367 appctx->st2 = STAT_ST_FIN;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003368 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003369 }
Willy Tarreaue6e52362019-01-04 17:42:57 +01003370 done:
3371 thread_release();
3372 return 1;
3373 full:
3374 thread_release();
3375 si_rx_room_blk(si);
3376 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003377}
3378
3379static void cli_release_show_sess(struct appctx *appctx)
3380{
3381 if (appctx->st2 == STAT_ST_LIST) {
Willy Tarreau7ce3f092017-11-10 16:24:41 +01003382 HA_SPIN_LOCK(STRMS_LOCK, &streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003383 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users))
3384 LIST_DEL(&appctx->ctx.sess.bref.users);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003385 HA_SPIN_UNLOCK(STRMS_LOCK, &streams_lock);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003386 }
3387}
3388
Willy Tarreau61b65212016-11-24 11:09:25 +01003389/* Parses the "shutdown session" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003390static int cli_parse_shutdown_session(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau61b65212016-11-24 11:09:25 +01003391{
3392 struct stream *strm, *ptr;
3393
3394 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3395 return 1;
3396
Willy Tarreau9d008692019-08-09 11:21:01 +02003397 if (!*args[2])
3398 return cli_err(appctx, "Session pointer expected (use 'show sess').\n");
Willy Tarreau61b65212016-11-24 11:09:25 +01003399
3400 ptr = (void *)strtoul(args[2], NULL, 0);
3401
3402 /* first, look for the requested stream in the stream table */
3403 list_for_each_entry(strm, &streams, list) {
3404 if (strm == ptr)
3405 break;
3406 }
3407
3408 /* do we have the stream ? */
Willy Tarreau9d008692019-08-09 11:21:01 +02003409 if (strm != ptr)
3410 return cli_err(appctx, "No such session (use 'show sess').\n");
Willy Tarreau61b65212016-11-24 11:09:25 +01003411
3412 stream_shutdown(strm, SF_ERR_KILLED);
3413 return 1;
3414}
3415
Willy Tarreau4e46b622016-11-23 16:50:48 +01003416/* Parses the "shutdown session server" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003417static int cli_parse_shutdown_sessions_server(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau4e46b622016-11-23 16:50:48 +01003418{
3419 struct server *sv;
Willy Tarreau4e46b622016-11-23 16:50:48 +01003420
3421 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3422 return 1;
3423
3424 sv = cli_find_server(appctx, args[3]);
3425 if (!sv)
3426 return 1;
3427
3428 /* kill all the stream that are on this server */
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003429 HA_SPIN_LOCK(SERVER_LOCK, &sv->lock);
Willy Tarreaud9e26a72019-11-14 16:37:16 +01003430 srv_shutdown_streams(sv, SF_ERR_KILLED);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003431 HA_SPIN_UNLOCK(SERVER_LOCK, &sv->lock);
Willy Tarreau4e46b622016-11-23 16:50:48 +01003432 return 1;
3433}
3434
William Lallemand4c5b4d52016-11-21 08:51:11 +01003435/* register cli keywords */
3436static struct cli_kw_list cli_kws = {{ },{
3437 { { "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 +01003438 { { "shutdown", "session", NULL }, "shutdown session : kill a specific session", cli_parse_shutdown_session, NULL, NULL },
Willy Tarreau4e46b622016-11-23 16:50:48 +01003439 { { "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 +01003440 {{},}
3441}};
3442
Willy Tarreau0108d902018-11-25 19:14:37 +01003443INITCALL1(STG_REGISTER, cli_register_kw, &cli_kws);
3444
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003445/* main configuration keyword registration. */
3446static struct action_kw_list stream_tcp_keywords = { ILH, {
3447 { "use-service", stream_parse_use_service },
3448 { /* END */ }
3449}};
3450
Willy Tarreau0108d902018-11-25 19:14:37 +01003451INITCALL1(STG_REGISTER, tcp_req_cont_keywords_register, &stream_tcp_keywords);
3452
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003453static struct action_kw_list stream_http_keywords = { ILH, {
3454 { "use-service", stream_parse_use_service },
3455 { /* END */ }
3456}};
3457
Willy Tarreau0108d902018-11-25 19:14:37 +01003458INITCALL1(STG_REGISTER, http_req_keywords_register, &stream_http_keywords);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003459
Amaury Denoyellef7719a22020-12-10 13:43:58 +01003460static int smp_fetch_cur_server_timeout(const struct arg *args, struct sample *smp, const char *km, void *private)
3461{
3462 smp->flags = SMP_F_VOL_TXN;
3463 smp->data.type = SMP_T_SINT;
3464 if (!smp->strm)
3465 return 0;
3466
3467 smp->data.u.sint = TICKS_TO_MS(smp->strm->res.rto);
3468 return 1;
3469}
3470
3471static int smp_fetch_cur_tunnel_timeout(const struct arg *args, struct sample *smp, const char *km, void *private)
3472{
3473 smp->flags = SMP_F_VOL_TXN;
3474 smp->data.type = SMP_T_SINT;
3475 if (!smp->strm)
3476 return 0;
3477
3478 smp->data.u.sint = TICKS_TO_MS(smp->strm->tunnel_timeout);
3479 return 1;
3480}
3481
Amaury Denoyelle12bada52020-12-10 13:43:57 +01003482/* Note: must not be declared <const> as its list will be overwritten.
3483 * Please take care of keeping this list alphabetically sorted.
3484 */
3485static struct sample_fetch_kw_list smp_kws = {ILH, {
Amaury Denoyellef7719a22020-12-10 13:43:58 +01003486 { "cur_server_timeout", smp_fetch_cur_server_timeout, 0, NULL, SMP_T_SINT, SMP_USE_BKEND, },
3487 { "cur_tunnel_timeout", smp_fetch_cur_tunnel_timeout, 0, NULL, SMP_T_SINT, SMP_USE_BKEND, },
Amaury Denoyelle12bada52020-12-10 13:43:57 +01003488 { NULL, NULL, 0, 0, 0 },
3489}};
3490
3491INITCALL1(STG_REGISTER, sample_register_fetches, &smp_kws);
3492
Willy Tarreaubaaee002006-06-26 02:48:02 +02003493/*
3494 * Local variables:
3495 * c-indent-level: 8
3496 * c-basic-offset: 8
3497 * End:
3498 */