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Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
Willy Tarreau87b09662015-04-03 00:22:06 +02002 * Stream management functions.
Willy Tarreaubaaee002006-06-26 02:48:02 +02003 *
Willy Tarreaud28c3532012-04-19 19:28:33 +02004 * Copyright 2000-2012 Willy Tarreau <w@1wt.eu>
Willy Tarreaubaaee002006-06-26 02:48:02 +02005 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 *
11 */
12
13#include <stdlib.h>
Willy Tarreau81f9aa32010-06-01 17:45:26 +020014#include <unistd.h>
15#include <fcntl.h>
Willy Tarreaue3ba5f02006-06-29 18:54:54 +020016
Willy Tarreaua264d962020-06-04 22:29:18 +020017#include <import/ebistree.h>
18
Willy Tarreaudcc048a2020-06-04 19:11:43 +020019#include <haproxy/acl.h>
Willy Tarreau122eba92020-06-04 10:15:32 +020020#include <haproxy/action.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020021#include <haproxy/activity.h>
22#include <haproxy/api.h>
Willy Tarreau3f0f82e2020-06-04 19:42:41 +020023#include <haproxy/applet.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020024#include <haproxy/arg.h>
Willy Tarreau49801602020-06-04 22:50:02 +020025#include <haproxy/backend.h>
Willy Tarreau278161c2020-06-04 11:18:28 +020026#include <haproxy/capture.h>
Willy Tarreau6be78492020-06-05 00:00:29 +020027#include <haproxy/cfgparse.h>
Willy Tarreauf1d32c42020-06-04 21:07:02 +020028#include <haproxy/channel.h>
Willy Tarreau4aa573d2020-06-04 18:21:56 +020029#include <haproxy/check.h>
Willy Tarreau83487a82020-06-04 20:19:54 +020030#include <haproxy/cli.h>
Willy Tarreau7ea393d2020-06-04 18:02:10 +020031#include <haproxy/connection.h>
Willy Tarreau3afc4c42020-06-03 18:23:19 +020032#include <haproxy/dict.h>
Willy Tarreau2741c8c2020-06-02 11:28:02 +020033#include <haproxy/dynbuf.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020034#include <haproxy/fd.h>
Willy Tarreauc7babd82020-06-04 21:29:29 +020035#include <haproxy/filters.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020036#include <haproxy/freq_ctr.h>
Willy Tarreau762d7a52020-06-04 11:23:07 +020037#include <haproxy/frontend.h>
Willy Tarreauf268ee82020-06-04 17:05:57 +020038#include <haproxy/global.h>
Willy Tarreau86416052020-06-04 09:20:54 +020039#include <haproxy/hlua.h>
Willy Tarreauc2b1ff02020-06-04 21:21:03 +020040#include <haproxy/http_ana.h>
Willy Tarreauc761f842020-06-04 11:40:28 +020041#include <haproxy/http_rules.h>
Willy Tarreau16f958c2020-06-03 08:44:35 +020042#include <haproxy/htx.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020043#include <haproxy/istbuf.h>
Willy Tarreauaeed4a82020-06-04 22:01:04 +020044#include <haproxy/log.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020045#include <haproxy/pipe.h>
Willy Tarreaud0ef4392020-06-02 09:38:52 +020046#include <haproxy/pool.h>
Willy Tarreaua264d962020-06-04 22:29:18 +020047#include <haproxy/proxy.h>
Willy Tarreaua55c4542020-06-04 22:59:39 +020048#include <haproxy/queue.h>
Willy Tarreau1e56f922020-06-04 23:20:13 +020049#include <haproxy/server.h>
Emeric Brunc9437992021-02-12 19:42:55 +010050#include <haproxy/resolvers.h>
Amaury Denoyelle12bada52020-12-10 13:43:57 +010051#include <haproxy/sample.h>
Willy Tarreau48d25b32020-06-04 18:58:52 +020052#include <haproxy/session.h>
Willy Tarreau2eec9b52020-06-04 19:58:55 +020053#include <haproxy/stats-t.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020054#include <haproxy/stick_table.h>
Willy Tarreaudfd3de82020-06-04 23:46:14 +020055#include <haproxy/stream.h>
Willy Tarreau5e539c92020-06-04 20:45:39 +020056#include <haproxy/stream_interface.h>
Willy Tarreaucea0e1b2020-06-04 17:25:40 +020057#include <haproxy/task.h>
Willy Tarreau8b550af2020-06-04 17:42:48 +020058#include <haproxy/tcp_rules.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020059#include <haproxy/thread.h>
Willy Tarreaudfd3de82020-06-04 23:46:14 +020060#include <haproxy/trace.h>
Willy Tarreaua1718922020-06-04 16:25:31 +020061#include <haproxy/vars.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020062
Willy Tarreaubaaee002006-06-26 02:48:02 +020063
Willy Tarreau8ceae722018-11-26 11:58:30 +010064DECLARE_POOL(pool_head_stream, "stream", sizeof(struct stream));
Tim Duesterhus127a74d2020-02-28 15:13:33 +010065DECLARE_POOL(pool_head_uniqueid, "uniqueid", UNIQUEID_LEN);
Willy Tarreau8ceae722018-11-26 11:58:30 +010066
Willy Tarreaub9813182021-02-24 11:29:51 +010067/* incremented by each "show sess" to fix a delimiter between streams */
68unsigned stream_epoch = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +020069
Thierry FOURNIER5a363e72015-09-27 19:29:33 +020070/* List of all use-service keywords. */
71static struct list service_keywords = LIST_HEAD_INIT(service_keywords);
72
Willy Tarreau5790eb02017-08-28 17:18:36 +020073
Christopher Fauleteea8fc72019-11-05 16:18:10 +010074/* trace source and events */
75static void strm_trace(enum trace_level level, uint64_t mask,
76 const struct trace_source *src,
77 const struct ist where, const struct ist func,
78 const void *a1, const void *a2, const void *a3, const void *a4);
79
80/* The event representation is split like this :
81 * strm - stream
82 * si - stream interface
83 * http - http analyzis
84 * tcp - tcp analyzis
85 *
86 * STRM_EV_* macros are defined in <proto/stream.h>
87 */
88static const struct trace_event strm_trace_events[] = {
89 { .mask = STRM_EV_STRM_NEW, .name = "strm_new", .desc = "new stream" },
90 { .mask = STRM_EV_STRM_FREE, .name = "strm_free", .desc = "release stream" },
91 { .mask = STRM_EV_STRM_ERR, .name = "strm_err", .desc = "error during stream processing" },
92 { .mask = STRM_EV_STRM_ANA, .name = "strm_ana", .desc = "stream analyzers" },
93 { .mask = STRM_EV_STRM_PROC, .name = "strm_proc", .desc = "stream processing" },
94
95 { .mask = STRM_EV_SI_ST, .name = "si_state", .desc = "processing stream-interface states" },
96
97 { .mask = STRM_EV_HTTP_ANA, .name = "http_ana", .desc = "HTTP analyzers" },
98 { .mask = STRM_EV_HTTP_ERR, .name = "http_err", .desc = "error during HTTP analyzis" },
99
100 { .mask = STRM_EV_TCP_ANA, .name = "tcp_ana", .desc = "TCP analyzers" },
101 { .mask = STRM_EV_TCP_ERR, .name = "tcp_err", .desc = "error during TCP analyzis" },
Christopher Fauletd176ff52022-03-08 15:47:02 +0100102
103 { .mask = STRM_EV_FLT_ANA, .name = "flt_ana", .desc = "Filter analyzers" },
104 { .mask = STRM_EV_FLT_ERR, .name = "flt_err", .desc = "error during filter analyzis" },
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100105 {}
106};
107
108static const struct name_desc strm_trace_lockon_args[4] = {
109 /* arg1 */ { /* already used by the stream */ },
110 /* arg2 */ { },
111 /* arg3 */ { },
112 /* arg4 */ { }
113};
114
115static const struct name_desc strm_trace_decoding[] = {
116#define STRM_VERB_CLEAN 1
117 { .name="clean", .desc="only user-friendly stuff, generally suitable for level \"user\"" },
118#define STRM_VERB_MINIMAL 2
119 { .name="minimal", .desc="report info on stream and stream-interfaces" },
120#define STRM_VERB_SIMPLE 3
121 { .name="simple", .desc="add info on request and response channels" },
122#define STRM_VERB_ADVANCED 4
123 { .name="advanced", .desc="add info on channel's buffer for data and developer levels only" },
124#define STRM_VERB_COMPLETE 5
125 { .name="complete", .desc="add info on channel's buffer" },
126 { /* end */ }
127};
128
129struct trace_source trace_strm = {
130 .name = IST("stream"),
131 .desc = "Applicative stream",
132 .arg_def = TRC_ARG1_STRM, // TRACE()'s first argument is always a stream
133 .default_cb = strm_trace,
134 .known_events = strm_trace_events,
135 .lockon_args = strm_trace_lockon_args,
136 .decoding = strm_trace_decoding,
137 .report_events = ~0, // report everything by default
138};
139
140#define TRACE_SOURCE &trace_strm
141INITCALL1(STG_REGISTER, trace_register_source, TRACE_SOURCE);
142
143/* the stream traces always expect that arg1, if non-null, is of a stream (from
144 * which we can derive everything), that arg2, if non-null, is an http
145 * transaction, that arg3, if non-null, is an http message.
146 */
147static void strm_trace(enum trace_level level, uint64_t mask, const struct trace_source *src,
148 const struct ist where, const struct ist func,
149 const void *a1, const void *a2, const void *a3, const void *a4)
150{
151 const struct stream *s = a1;
152 const struct http_txn *txn = a2;
153 const struct http_msg *msg = a3;
154 struct task *task;
155 const struct stream_interface *si_f, *si_b;
156 const struct channel *req, *res;
157 struct htx *htx;
158
159 if (!s || src->verbosity < STRM_VERB_CLEAN)
160 return;
161
162 task = s->task;
163 si_f = &s->si[0];
164 si_b = &s->si[1];
165 req = &s->req;
166 res = &s->res;
167 htx = (msg ? htxbuf(&msg->chn->buf) : NULL);
168
169 /* General info about the stream (htx/tcp, id...) */
170 chunk_appendf(&trace_buf, " : [%u,%s]",
171 s->uniq_id, ((s->flags & SF_HTX) ? "HTX" : "TCP"));
Tim Duesterhusa17e6622020-03-05 20:19:02 +0100172 if (isttest(s->unique_id)) {
173 chunk_appendf(&trace_buf, " id=");
174 b_putist(&trace_buf, s->unique_id);
175 }
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100176
177 /* Front and back stream-int state */
178 chunk_appendf(&trace_buf, " SI=(%s,%s)",
179 si_state_str(si_f->state), si_state_str(si_b->state));
180
181 /* If txn is defined, HTTP req/rep states */
182 if (txn)
183 chunk_appendf(&trace_buf, " HTTP=(%s,%s)",
184 h1_msg_state_str(txn->req.msg_state), h1_msg_state_str(txn->rsp.msg_state));
185 if (msg)
186 chunk_appendf(&trace_buf, " %s", ((msg->chn->flags & CF_ISRESP) ? "RESPONSE" : "REQUEST"));
187
188 if (src->verbosity == STRM_VERB_CLEAN)
189 return;
190
191 /* If msg defined, display status-line if possible (verbosity > MINIMAL) */
192 if (src->verbosity > STRM_VERB_MINIMAL && htx && htx_nbblks(htx)) {
193 const struct htx_blk *blk = htx_get_head_blk(htx);
194 const struct htx_sl *sl = htx_get_blk_ptr(htx, blk);
195 enum htx_blk_type type = htx_get_blk_type(blk);
196
197 if (type == HTX_BLK_REQ_SL || type == HTX_BLK_RES_SL)
198 chunk_appendf(&trace_buf, " - \"%.*s %.*s %.*s\"",
199 HTX_SL_P1_LEN(sl), HTX_SL_P1_PTR(sl),
200 HTX_SL_P2_LEN(sl), HTX_SL_P2_PTR(sl),
201 HTX_SL_P3_LEN(sl), HTX_SL_P3_PTR(sl));
202 }
203
204
205 /* If txn defined info about HTTP msgs, otherwise info about SI. */
206 if (txn) {
207 chunk_appendf(&trace_buf, " - t=%p s=(%p,0x%08x) txn.flags=0x%08x, http.flags=(0x%08x,0x%08x) status=%d",
208 task, s, s->flags, txn->flags, txn->req.flags, txn->rsp.flags, txn->status);
209 }
210 else {
211 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",
212 task, s, s->flags, si_f, si_f->flags, si_f->err_type,
213 si_b, si_b->flags, si_b->err_type, si_b->conn_retries);
214 }
215
216 if (src->verbosity == STRM_VERB_MINIMAL)
217 return;
218
219
220 /* If txn defined, don't display all channel info */
221 if (src->verbosity == STRM_VERB_SIMPLE || txn) {
222 chunk_appendf(&trace_buf, " req=(%p .fl=0x%08x .exp(r,w,a)=(%u,%u,%u))",
223 req, req->flags, req->rex, req->wex, req->analyse_exp);
224 chunk_appendf(&trace_buf, " res=(%p .fl=0x%08x .exp(r,w,a)=(%u,%u,%u))",
225 res, res->flags, res->rex, res->wex, res->analyse_exp);
226 }
227 else {
228 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)",
229 req, req->flags, req->analysers, req->rex, req->wex, req->analyse_exp,
Willy Tarreaue18f53e2019-11-27 15:41:31 +0100230 (long)req->output, req->total, req->to_forward);
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100231 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)",
232 res, res->flags, res->analysers, res->rex, res->wex, res->analyse_exp,
Willy Tarreaue18f53e2019-11-27 15:41:31 +0100233 (long)res->output, res->total, res->to_forward);
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100234 }
235
236 if (src->verbosity == STRM_VERB_SIMPLE ||
237 (src->verbosity == STRM_VERB_ADVANCED && src->level < TRACE_LEVEL_DATA))
238 return;
239
240 /* channels' buffer info */
241 if (s->flags & SF_HTX) {
242 struct htx *rqhtx = htxbuf(&req->buf);
243 struct htx *rphtx = htxbuf(&res->buf);
244
245 chunk_appendf(&trace_buf, " htx=(%u/%u#%u, %u/%u#%u)",
246 rqhtx->data, rqhtx->size, htx_nbblks(rqhtx),
247 rphtx->data, rphtx->size, htx_nbblks(rphtx));
248 }
249 else {
250 chunk_appendf(&trace_buf, " buf=(%u@%p+%u/%u, %u@%p+%u/%u)",
251 (unsigned int)b_data(&req->buf), b_orig(&req->buf),
252 (unsigned int)b_head_ofs(&req->buf), (unsigned int)b_size(&req->buf),
Christopher Fauleta46c35c2022-03-08 15:48:55 +0100253 (unsigned int)b_data(&res->buf), b_orig(&res->buf),
254 (unsigned int)b_head_ofs(&res->buf), (unsigned int)b_size(&res->buf));
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100255 }
256
257 /* If msg defined, display htx info if defined (level > USER) */
258 if (src->level > TRACE_LEVEL_USER && htx && htx_nbblks(htx)) {
259 int full = 0;
260
261 /* Full htx info (level > STATE && verbosity > SIMPLE) */
262 if (src->level > TRACE_LEVEL_STATE) {
263 if (src->verbosity == STRM_VERB_COMPLETE)
264 full = 1;
265 }
266
267 chunk_memcat(&trace_buf, "\n\t", 2);
268 htx_dump(&trace_buf, htx, full);
269 }
270}
271
Willy Tarreau5790eb02017-08-28 17:18:36 +0200272/* Create a new stream for connection <conn>. Return < 0 on error. This is only
273 * valid right after the handshake, before the connection's data layer is
Christopher Faulet16df1782020-12-04 16:47:41 +0100274 * initialized, because it relies on the session to be in conn->owner. On
275 * success, <input> buffer is transferred to the stream and thus points to
276 * BUF_NULL. On error, it is unchanged and it is the caller responsibility to
277 * release it.
Willy Tarreau5790eb02017-08-28 17:18:36 +0200278 */
Christopher Faulet26256f82020-09-14 11:40:13 +0200279int stream_create_from_cs(struct conn_stream *cs, struct buffer *input)
Willy Tarreau5790eb02017-08-28 17:18:36 +0200280{
281 struct stream *strm;
282
Christopher Faulet26256f82020-09-14 11:40:13 +0200283 strm = stream_new(cs->conn->owner, &cs->obj_type, input);
Willy Tarreau5790eb02017-08-28 17:18:36 +0200284 if (strm == NULL)
285 return -1;
286
287 task_wakeup(strm->task, TASK_WOKEN_INIT);
288 return 0;
289}
290
Christopher Faulet4ef84c92021-01-21 17:36:12 +0100291/* Upgrade an existing TCP stream for connection <conn>. Return < 0 on error.
292 * This is only valid right after a TCP to H1 upgrade. The stream should be
293 * "reativated" by removing SF_IGNORE flag. And the right mode must be set.
294 * On success, <input> buffer is transferred to the stream and thus points to
295 * BUF_NULL. On error, it is unchanged and it is the caller responsibility to
296 * release it (this never happens for now).
297 */
298int stream_upgrade_from_cs(struct conn_stream *cs, struct buffer *input)
299{
300 struct stream_interface *si = cs->data;
301 struct stream *s = si_strm(si);
302
303 if (cs->conn->mux->flags & MX_FL_HTX)
304 s->flags |= SF_HTX;
305
306 if (!b_is_null(input)) {
307 /* Xfer the input buffer to the request channel. <input> will
308 * than point to BUF_NULL. From this point, it is the stream
309 * responsibility to release it.
310 */
311 s->req.buf = *input;
312 *input = BUF_NULL;
313 s->req.total = (IS_HTX_STRM(s) ? htxbuf(&s->req.buf)->data : b_data(&s->req.buf));
314 s->req.flags |= (s->req.total ? CF_READ_PARTIAL : 0);
315 }
316
317 s->flags &= ~SF_IGNORE;
318
319 task_wakeup(s->task, TASK_WOKEN_INIT);
320 return 0;
321}
322
Willy Tarreaub882dd82018-11-06 15:50:21 +0100323/* Callback used to wake up a stream when an input buffer is available. The
324 * stream <s>'s stream interfaces are checked for a failed buffer allocation
Willy Tarreaud0f5bbc2018-11-14 11:10:26 +0100325 * as indicated by the presence of the SI_FL_RXBLK_ROOM flag and the lack of a
Willy Tarreaub882dd82018-11-06 15:50:21 +0100326 * buffer, and and input buffer is assigned there (at most one). The function
327 * returns 1 and wakes the stream up if a buffer was taken, otherwise zero.
328 * It's designed to be called from __offer_buffer().
329 */
330int stream_buf_available(void *arg)
331{
332 struct stream *s = arg;
333
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100334 if (!s->req.buf.size && !s->req.pipe && (s->si[0].flags & SI_FL_RXBLK_BUFF) &&
Willy Tarreaud68d4f12021-03-22 14:44:31 +0100335 b_alloc(&s->req.buf))
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100336 si_rx_buff_rdy(&s->si[0]);
337 else if (!s->res.buf.size && !s->res.pipe && (s->si[1].flags & SI_FL_RXBLK_BUFF) &&
Willy Tarreaud68d4f12021-03-22 14:44:31 +0100338 b_alloc(&s->res.buf))
Willy Tarreau8be7cd72018-11-14 15:12:08 +0100339 si_rx_buff_rdy(&s->si[1]);
Willy Tarreaub882dd82018-11-06 15:50:21 +0100340 else
341 return 0;
342
343 task_wakeup(s->task, TASK_WOKEN_RES);
344 return 1;
345
346}
347
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200348/* This function is called from the session handler which detects the end of
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200349 * handshake, in order to complete initialization of a valid stream. It must be
Joseph Herlant4cc8d0d2018-11-15 09:14:14 -0800350 * called with a completely initialized session. It returns the pointer to
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200351 * the newly created stream, or NULL in case of fatal error. The client-facing
Willy Tarreau87787ac2017-08-28 16:22:54 +0200352 * end point is assigned to <origin>, which must be valid. The stream's task
353 * is configured with a nice value inherited from the listener's nice if any.
354 * The task's context is set to the new stream, and its function is set to
Christopher Faulet16df1782020-12-04 16:47:41 +0100355 * process_stream(). Target and analysers are null. <input> is used as input
356 * buffer for the request channel and may contain data. On success, it is
357 * transfer to the stream and <input> is set to BUF_NULL. On error, <input>
358 * buffer is unchanged and it is the caller responsibility to release it.
Willy Tarreau2542b532012-08-31 16:01:23 +0200359 */
Christopher Faulet26256f82020-09-14 11:40:13 +0200360struct stream *stream_new(struct session *sess, enum obj_type *origin, struct buffer *input)
Willy Tarreau2542b532012-08-31 16:01:23 +0200361{
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200362 struct stream *s;
Willy Tarreau87787ac2017-08-28 16:22:54 +0200363 struct task *t;
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200364 struct conn_stream *cs = objt_cs(origin);
Willy Tarreau73b65ac2015-04-08 18:26:29 +0200365 struct appctx *appctx = objt_appctx(origin);
Willy Tarreau2542b532012-08-31 16:01:23 +0200366
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100367 DBG_TRACE_ENTER(STRM_EV_STRM_NEW);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100368 if (unlikely((s = pool_alloc(pool_head_stream)) == NULL))
Willy Tarreau87787ac2017-08-28 16:22:54 +0200369 goto out_fail_alloc;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200370
371 /* minimum stream initialization required for an embryonic stream is
372 * fairly low. We need very little to execute L4 ACLs, then we need a
373 * task to make the client-side connection live on its own.
374 * - flags
375 * - stick-entry tracking
376 */
377 s->flags = 0;
Willy Tarreaufb9f5842015-04-05 18:19:23 +0200378 s->logs.logwait = sess->fe->to_log;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200379 s->logs.level = 0;
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200380 tv_zero(&s->logs.tv_request);
381 s->logs.t_queue = -1;
382 s->logs.t_connect = -1;
383 s->logs.t_data = -1;
384 s->logs.t_close = 0;
385 s->logs.bytes_in = s->logs.bytes_out = 0;
Patrick Hemmerffe5e8c2018-05-11 12:52:31 -0400386 s->logs.prx_queue_pos = 0; /* we get the number of pending conns before us */
387 s->logs.srv_queue_pos = 0; /* we will get this number soon */
Baptiste Assmann333939c2019-01-21 08:34:50 +0100388 s->obj_type = OBJ_TYPE_STREAM;
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200389
Christopher Faulet15e525f2020-09-30 14:03:54 +0200390 s->logs.accept_date = sess->accept_date;
391 s->logs.tv_accept = sess->tv_accept;
392 s->logs.t_handshake = sess->t_handshake;
Christopher Faulet7a6c5132020-09-30 13:49:56 +0200393 s->logs.t_idle = sess->t_idle;
Christopher Fauletb3484d62018-11-29 15:19:05 +0100394
Willy Tarreau99eb0f12015-04-05 12:03:54 +0200395 /* default logging function */
396 s->do_log = strm_log;
397
398 /* default error reporting function, may be changed by analysers */
399 s->srv_error = default_srv_error;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200400
401 /* Initialise the current rule list pointer to NULL. We are sure that
402 * any rulelist match the NULL pointer.
403 */
404 s->current_rule_list = NULL;
Remi Gacogne7fb9de22015-07-22 17:10:58 +0200405 s->current_rule = NULL;
Christopher Faulet2747fbb2020-07-28 11:56:13 +0200406 s->rules_exp = TICK_ETERNITY;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200407
Willy Tarreaua68f7622015-09-21 17:48:24 +0200408 /* Copy SC counters for the stream. We don't touch refcounts because
409 * any reference we have is inherited from the session. Since the stream
410 * doesn't exist without the session, the session's existence guarantees
411 * we don't lose the entry. During the store operation, the stream won't
412 * touch these ones.
Thierry FOURNIER827752e2015-08-18 11:34:18 +0200413 */
Thierry FOURNIERc8fdb982015-08-16 12:03:39 +0200414 memcpy(s->stkctr, sess->stkctr, sizeof(s->stkctr));
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200415
416 s->sess = sess;
417 s->si[0].flags = SI_FL_NONE;
418 s->si[1].flags = SI_FL_ISBACK;
419
Willy Tarreaub9813182021-02-24 11:29:51 +0100420 s->stream_epoch = _HA_ATOMIC_LOAD(&stream_epoch);
Willy Tarreau18515722021-04-06 11:57:41 +0200421 s->uniq_id = _HA_ATOMIC_FETCH_ADD(&global.req_count, 1);
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200422
Willy Tarreau87b09662015-04-03 00:22:06 +0200423 /* OK, we're keeping the stream, so let's properly initialize the stream */
Willy Tarreau2542b532012-08-31 16:01:23 +0200424 LIST_INIT(&s->back_refs);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100425
Willy Tarreau90f366b2021-02-20 11:49:49 +0100426 LIST_INIT(&s->buffer_wait.list);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100427 s->buffer_wait.target = s;
Willy Tarreaub882dd82018-11-06 15:50:21 +0100428 s->buffer_wait.wakeup_cb = stream_buf_available;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200429
Willy Tarreaufa1258f2021-04-10 23:00:53 +0200430 s->call_rate.curr_tick = s->call_rate.curr_ctr = s->call_rate.prev_ctr = 0;
William Lallemandcf62f7e2018-10-26 14:47:40 +0200431 s->pcli_next_pid = 0;
William Lallemandebf61802018-12-11 16:10:57 +0100432 s->pcli_flags = 0;
Tim Duesterhusa17e6622020-03-05 20:19:02 +0100433 s->unique_id = IST_NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200434
Emeric Brunc60def82017-09-27 14:59:38 +0200435 if ((t = task_new(tid_bit)) == NULL)
Willy Tarreau87787ac2017-08-28 16:22:54 +0200436 goto out_fail_alloc;
437
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200438 s->task = t;
Christopher Faulet9d810ca2016-12-08 22:33:52 +0100439 s->pending_events = 0;
Willy Tarreaud1769b82015-04-06 00:25:48 +0200440 t->process = process_stream;
Willy Tarreau2542b532012-08-31 16:01:23 +0200441 t->context = s;
442 t->expire = TICK_ETERNITY;
Willy Tarreau87787ac2017-08-28 16:22:54 +0200443 if (sess->listener)
444 t->nice = sess->listener->nice;
Willy Tarreau2542b532012-08-31 16:01:23 +0200445
Willy Tarreau87b09662015-04-03 00:22:06 +0200446 /* Note: initially, the stream's backend points to the frontend.
Willy Tarreau2542b532012-08-31 16:01:23 +0200447 * This changes later when switching rules are executed or
448 * when the default backend is assigned.
449 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200450 s->be = sess->fe;
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200451 s->req_cap = NULL;
452 s->res_cap = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200453
Aurelien DARRAGON32e8e9b2022-11-18 09:17:29 +0100454 /* Initialize all the variables contexts even if not used.
Willy Tarreauebcd4842015-06-19 11:59:02 +0200455 * This permits to prune these contexts without errors.
Aurelien DARRAGON32e8e9b2022-11-18 09:17:29 +0100456 *
457 * We need to make sure that those lists are not re-initialized
458 * by stream-dependant underlying code because we could lose
459 * track of already defined variables, leading to data inconsistency
460 * and memory leaks...
461 *
462 * For reference: we had a very old bug caused by vars_txn and
463 * vars_reqres being accidentally re-initialized in http_create_txn()
464 * (https://github.com/haproxy/haproxy/issues/1935)
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200465 */
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200466 vars_init(&s->vars_txn, SCOPE_TXN);
467 vars_init(&s->vars_reqres, SCOPE_REQ);
468
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200469 /* this part should be common with other protocols */
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200470 if (si_reset(&s->si[0]) < 0)
471 goto out_fail_alloc;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200472 si_set_state(&s->si[0], SI_ST_EST);
Hongbo Longe39683c2017-03-10 18:41:51 +0100473 s->si[0].hcto = sess->fe->timeout.clientfin;
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200474
Christopher Faulet0e160ff2019-04-03 10:01:07 +0200475 if (cs && cs->conn->mux) {
476 if (cs->conn->mux->flags & MX_FL_CLEAN_ABRT)
477 s->si[0].flags |= SI_FL_CLEAN_ABRT;
478 if (cs->conn->mux->flags & MX_FL_HTX)
479 s->flags |= SF_HTX;
Amaury Denoyelleee7fcd52021-10-18 14:45:49 +0200480
481 if (cs->flags & CS_FL_WEBSOCKET)
482 s->flags |= SF_WEBSOCKET;
Christopher Faulet0e160ff2019-04-03 10:01:07 +0200483 }
Christopher Faulet3494c632019-07-15 14:58:26 +0200484 /* Set SF_HTX flag for HTTP frontends. */
485 if (sess->fe->mode == PR_MODE_HTTP)
Christopher Faulet0e160ff2019-04-03 10:01:07 +0200486 s->flags |= SF_HTX;
Willy Tarreau984fca92017-12-20 16:31:43 +0100487
Willy Tarreau1f52bb22015-04-04 14:28:46 +0200488 /* attach the incoming connection to the stream interface now. */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200489 if (cs)
490 si_attach_cs(&s->si[0], cs);
Willy Tarreau470280e2015-04-05 01:33:13 +0200491 else if (appctx)
492 si_attach_appctx(&s->si[0], appctx);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200493
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200494 if (likely(sess->fe->options2 & PR_O2_INDEPSTR))
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200495 s->si[0].flags |= SI_FL_INDEP_STR;
496
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200497 /* pre-initialize the other side's stream interface to an INIT state. The
498 * callbacks will be initialized before attempting to connect.
499 */
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200500 if (si_reset(&s->si[1]) < 0)
501 goto out_fail_alloc_si1;
Hongbo Longe39683c2017-03-10 18:41:51 +0100502 s->si[1].hcto = TICK_ETERNITY;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200503
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200504 if (likely(sess->fe->options2 & PR_O2_INDEPSTR))
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200505 s->si[1].flags |= SI_FL_INDEP_STR;
506
Willy Tarreau87b09662015-04-03 00:22:06 +0200507 stream_init_srv_conn(s);
Willy Tarreau9b82d942016-12-05 00:26:31 +0100508 s->target = sess->listener ? sess->listener->default_target : NULL;
Willy Tarreau90420602019-07-18 15:09:57 +0200509 s->target_addr = NULL;
Willy Tarreau9b82d942016-12-05 00:26:31 +0100510
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200511 s->pend_pos = NULL;
Patrick Hemmer268a7072018-05-11 12:52:31 -0400512 s->priority_class = 0;
513 s->priority_offset = 0;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200514
515 /* init store persistence */
516 s->store_count = 0;
517
Christopher Faulet16df1782020-12-04 16:47:41 +0100518 channel_init(&s->req);
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100519 s->req.flags |= CF_READ_ATTACHED; /* the producer is already connected */
Willy Tarreau9b82d942016-12-05 00:26:31 +0100520 s->req.analysers = sess->listener ? sess->listener->analysers : 0;
Willy Tarreaue223e3b2017-11-18 15:39:10 +0100521
Christopher Faulet57e4a1b2021-03-15 17:09:27 +0100522 if (IS_HTX_STRM(s)) {
523 /* Be sure to have HTTP analysers because in case of
524 * "destructive" stream upgrade, they may be missing (e.g
525 * TCP>H2)
526 */
527 s->req.analysers |= AN_REQ_WAIT_HTTP|AN_REQ_HTTP_PROCESS_FE;
528 }
529
Willy Tarreaue223e3b2017-11-18 15:39:10 +0100530 if (!sess->fe->fe_req_ana) {
531 channel_auto_connect(&s->req); /* don't wait to establish connection */
532 channel_auto_close(&s->req); /* let the producer forward close requests */
533 }
Willy Tarreauc8815ef2015-04-05 18:15:59 +0200534
535 s->req.rto = sess->fe->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100536 s->req.wto = TICK_ETERNITY;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100537 s->req.rex = TICK_ETERNITY;
538 s->req.wex = TICK_ETERNITY;
539 s->req.analyse_exp = TICK_ETERNITY;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200540
Christopher Faulet16df1782020-12-04 16:47:41 +0100541 channel_init(&s->res);
Willy Tarreauef573c02014-11-28 14:17:09 +0100542 s->res.flags |= CF_ISRESP;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100543 s->res.analysers = 0;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200544
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200545 if (sess->fe->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100546 s->req.flags |= CF_NEVER_WAIT;
547 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200548 }
549
Willy Tarreauc8815ef2015-04-05 18:15:59 +0200550 s->res.wto = sess->fe->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100551 s->res.rto = TICK_ETERNITY;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100552 s->res.rex = TICK_ETERNITY;
553 s->res.wex = TICK_ETERNITY;
554 s->res.analyse_exp = TICK_ETERNITY;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200555
Willy Tarreaueee5b512015-04-03 23:46:31 +0200556 s->txn = NULL;
Thierry FOURNIER2c8b54e2016-12-17 12:45:32 +0100557 s->hlua = NULL;
Thierry FOURNIER65f34c62015-02-16 20:11:43 +0100558
Emeric Brun08622d32020-12-23 17:41:43 +0100559 s->resolv_ctx.requester = NULL;
560 s->resolv_ctx.hostname_dn = NULL;
561 s->resolv_ctx.hostname_dn_len = 0;
562 s->resolv_ctx.parent = NULL;
Frédéric Lécaillebed883a2019-04-23 17:26:33 +0200563
Amaury Denoyellefb504432020-12-10 13:43:53 +0100564 s->tunnel_timeout = TICK_ETERNITY;
565
Willy Tarreau2b718102021-04-21 07:32:39 +0200566 LIST_APPEND(&ti->streams, &s->list);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200567
Christopher Faulet92d36382015-11-05 13:35:03 +0100568 if (flt_stream_init(s) < 0 || flt_stream_start(s) < 0)
Christopher Fauletd7c91962015-04-30 11:48:27 +0200569 goto out_fail_accept;
570
Olivier Houcharda254a372019-04-05 15:30:12 +0200571 s->si[1].l7_buffer = BUF_NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200572 /* finish initialization of the accepted file descriptor */
Olivier Houchard53216e72018-10-10 15:46:36 +0200573 if (appctx)
Willy Tarreau0cd3bd62018-11-06 18:46:37 +0100574 si_want_get(&s->si[0]);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200575
Willy Tarreaufb9f5842015-04-05 18:19:23 +0200576 if (sess->fe->accept && sess->fe->accept(s) < 0)
Willy Tarreauc5a7ff42015-04-05 11:52:08 +0200577 goto out_fail_accept;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200578
Christopher Faulet16df1782020-12-04 16:47:41 +0100579 if (!b_is_null(input)) {
580 /* Xfer the input buffer to the request channel. <input> will
581 * than point to BUF_NULL. From this point, it is the stream
582 * responsibility to release it.
583 */
584 s->req.buf = *input;
585 *input = BUF_NULL;
Christopher Fauletc43fca02020-12-04 17:22:49 +0100586 s->req.total = (IS_HTX_STRM(s) ? htxbuf(&s->req.buf)->data : b_data(&s->req.buf));
Christopher Faulet16df1782020-12-04 16:47:41 +0100587 s->req.flags |= (s->req.total ? CF_READ_PARTIAL : 0);
588 }
589
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200590 /* it is important not to call the wakeup function directly but to
591 * pass through task_wakeup(), because this one knows how to apply
Emeric Brun5f77fef2017-05-29 15:26:51 +0200592 * priorities to tasks. Using multi thread we must be sure that
593 * stream is fully initialized before calling task_wakeup. So
594 * the caller must handle the task_wakeup
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200595 */
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100596 DBG_TRACE_LEAVE(STRM_EV_STRM_NEW, s);
Willy Tarreau02d86382015-04-05 12:00:52 +0200597 return s;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200598
599 /* Error unrolling */
Willy Tarreauc5a7ff42015-04-05 11:52:08 +0200600 out_fail_accept:
Christopher Faulet92d36382015-11-05 13:35:03 +0100601 flt_stream_release(s, 0);
Olivier Houchard3f795f72019-04-17 22:51:06 +0200602 task_destroy(t);
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200603 tasklet_free(s->si[1].wait_event.tasklet);
Willy Tarreau2b718102021-04-21 07:32:39 +0200604 LIST_DELETE(&s->list);
Olivier Houchard8f0b4c62018-08-02 18:21:38 +0200605out_fail_alloc_si1:
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200606 tasklet_free(s->si[0].wait_event.tasklet);
Willy Tarreau87787ac2017-08-28 16:22:54 +0200607 out_fail_alloc:
Willy Tarreaubafbe012017-11-24 17:34:44 +0100608 pool_free(pool_head_stream, s);
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100609 DBG_TRACE_DEVEL("leaving on error", STRM_EV_STRM_NEW|STRM_EV_STRM_ERR);
Willy Tarreau02d86382015-04-05 12:00:52 +0200610 return NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200611}
612
Willy Tarreaubaaee002006-06-26 02:48:02 +0200613/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200614 * frees the context associated to a stream. It must have been removed first.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200615 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200616static void stream_free(struct stream *s)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200617{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200618 struct session *sess = strm_sess(s);
619 struct proxy *fe = sess->fe;
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100620 struct bref *bref, *back;
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200621 struct conn_stream *cli_cs = objt_cs(s->si[0].end);
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100622 int must_free_sess;
Willy Tarreaua4cda672010-06-06 18:28:49 +0200623 int i;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100624
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100625 DBG_TRACE_POINT(STRM_EV_STRM_FREE, s);
626
Willy Tarreau0ad46fa2019-05-17 14:20:05 +0200627 /* detach the stream from its own task before even releasing it so
628 * that walking over a task list never exhibits a dying stream.
629 */
630 s->task->context = NULL;
631 __ha_barrier_store();
632
Willy Tarreaud0ad4a82018-07-25 11:13:53 +0200633 pendconn_free(s);
Willy Tarreau922a8062008-12-04 09:33:58 +0100634
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100635 if (objt_server(s->target)) { /* there may be requests left pending in queue */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200636 if (s->flags & SF_CURR_SESS) {
637 s->flags &= ~SF_CURR_SESS;
Willy Tarreau4781b152021-04-06 13:53:36 +0200638 _HA_ATOMIC_DEC(&__objt_server(s->target)->cur_sess);
Willy Tarreau1e62de62008-11-11 20:20:02 +0100639 }
Willy Tarreau66182592021-12-06 07:01:02 +0000640 if (may_dequeue_tasks(__objt_server(s->target), s->be))
641 process_srv_queue(__objt_server(s->target), 0);
Willy Tarreau1e62de62008-11-11 20:20:02 +0100642 }
Willy Tarreau922a8062008-12-04 09:33:58 +0100643
Willy Tarreau7c669d72008-06-20 15:04:11 +0200644 if (unlikely(s->srv_conn)) {
Willy Tarreau87b09662015-04-03 00:22:06 +0200645 /* the stream still has a reserved slot on a server, but
Willy Tarreau7c669d72008-06-20 15:04:11 +0200646 * it should normally be only the same as the one above,
647 * so this should not happen in fact.
648 */
649 sess_change_server(s, NULL);
650 }
651
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100652 if (s->req.pipe)
653 put_pipe(s->req.pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100654
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100655 if (s->res.pipe)
656 put_pipe(s->res.pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100657
Willy Tarreaubf883e02014-11-25 21:10:35 +0100658 /* We may still be present in the buffer wait queue */
Willy Tarreau2b718102021-04-21 07:32:39 +0200659 if (LIST_INLIST(&s->buffer_wait.list))
Willy Tarreau90f366b2021-02-20 11:49:49 +0100660 LIST_DEL_INIT(&s->buffer_wait.list);
Willy Tarreau21046592020-02-26 10:39:36 +0100661
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200662 if (s->req.buf.size || s->res.buf.size) {
Willy Tarreau4d77bbf2021-02-20 12:02:46 +0100663 int count = !!s->req.buf.size + !!s->res.buf.size;
664
Willy Tarreaue0d0b402019-08-08 08:06:27 +0200665 b_free(&s->req.buf);
666 b_free(&s->res.buf);
Willy Tarreau4d77bbf2021-02-20 12:02:46 +0100667 offer_buffers(NULL, count);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100668 }
Willy Tarreau9b28e032012-10-12 23:49:43 +0200669
Tim Duesterhusa17e6622020-03-05 20:19:02 +0100670 pool_free(pool_head_uniqueid, s->unique_id.ptr);
671 s->unique_id = IST_NULL;
Olivier Houchard32211a12019-02-01 18:10:46 +0100672
Thierry FOURNIER2c8b54e2016-12-17 12:45:32 +0100673 hlua_ctx_destroy(s->hlua);
674 s->hlua = NULL;
Willy Tarreaueee5b512015-04-03 23:46:31 +0200675 if (s->txn)
Christopher Faulet75f619a2021-03-08 19:12:58 +0100676 http_destroy_txn(s);
Willy Tarreau46023632010-01-07 22:51:47 +0100677
Willy Tarreau1e954912012-10-12 17:50:05 +0200678 /* ensure the client-side transport layer is destroyed */
Willy Tarreau32560732017-10-08 11:33:44 +0200679 if (cli_cs)
680 cs_close(cli_cs);
Willy Tarreau1e954912012-10-12 17:50:05 +0200681
Willy Tarreaua4cda672010-06-06 18:28:49 +0200682 for (i = 0; i < s->store_count; i++) {
683 if (!s->store[i].ts)
684 continue;
685 stksess_free(s->store[i].table, s->store[i].ts);
686 s->store[i].ts = NULL;
687 }
688
Emeric Brun08622d32020-12-23 17:41:43 +0100689 if (s->resolv_ctx.requester) {
Emeric Brun21fbeed2020-12-23 18:01:04 +0100690 __decl_thread(struct resolvers *resolvers = s->resolv_ctx.parent->arg.resolv.resolvers);
Christopher Faulet5098a082020-07-22 11:46:32 +0200691
692 HA_SPIN_LOCK(DNS_LOCK, &resolvers->lock);
Willy Tarreau61cfdf42021-02-20 10:46:51 +0100693 ha_free(&s->resolv_ctx.hostname_dn);
Emeric Brun08622d32020-12-23 17:41:43 +0100694 s->resolv_ctx.hostname_dn_len = 0;
Willy Tarreau33360872021-10-20 14:07:31 +0200695 resolv_unlink_resolution(s->resolv_ctx.requester);
Christopher Faulet5098a082020-07-22 11:46:32 +0200696 HA_SPIN_UNLOCK(DNS_LOCK, &resolvers->lock);
Baptiste Assmann333939c2019-01-21 08:34:50 +0100697
Emeric Brun08622d32020-12-23 17:41:43 +0100698 pool_free(resolv_requester_pool, s->resolv_ctx.requester);
699 s->resolv_ctx.requester = NULL;
Baptiste Assmann333939c2019-01-21 08:34:50 +0100700 }
701
Christopher Fauletd7c91962015-04-30 11:48:27 +0200702 flt_stream_stop(s);
Christopher Faulet92d36382015-11-05 13:35:03 +0100703 flt_stream_release(s, 0);
Christopher Fauletd7c91962015-04-30 11:48:27 +0200704
Willy Tarreau92fb9832007-10-16 17:34:28 +0200705 if (fe) {
Christopher Faulet59399252019-11-07 14:27:52 +0100706 if (s->req_cap) {
707 struct cap_hdr *h;
708 for (h = fe->req_cap; h; h = h->next)
709 pool_free(h->pool, s->req_cap[h->index]);
710 }
711
712 if (s->res_cap) {
713 struct cap_hdr *h;
714 for (h = fe->rsp_cap; h; h = h->next)
715 pool_free(h->pool, s->res_cap[h->index]);
716 }
717
Willy Tarreaubafbe012017-11-24 17:34:44 +0100718 pool_free(fe->rsp_cap_pool, s->res_cap);
719 pool_free(fe->req_cap_pool, s->req_cap);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200720 }
Willy Tarreau0937bc42009-12-22 15:03:09 +0100721
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200722 /* Cleanup all variable contexts. */
Willy Tarreaucda7f3f2018-10-28 13:44:36 +0100723 if (!LIST_ISEMPTY(&s->vars_txn.head))
724 vars_prune(&s->vars_txn, s->sess, s);
725 if (!LIST_ISEMPTY(&s->vars_reqres.head))
726 vars_prune(&s->vars_reqres, s->sess, s);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +0200727
Willy Tarreau87b09662015-04-03 00:22:06 +0200728 stream_store_counters(s);
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +0200729
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100730 list_for_each_entry_safe(bref, back, &s->back_refs, users) {
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100731 /* we have to unlink all watchers. We must not relink them if
Willy Tarreau49de6852021-02-24 13:46:12 +0100732 * this stream was the last one in the list. This is safe to do
733 * here because we're touching our thread's list so we know
734 * that other streams are not active, and the watchers will
735 * only touch their node under thread isolation.
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100736 */
Willy Tarreau49de6852021-02-24 13:46:12 +0100737 LIST_DEL_INIT(&bref->users);
Willy Tarreaua698eb62021-02-24 10:37:01 +0100738 if (s->list.n != &ti->streams)
Willy Tarreau2b718102021-04-21 07:32:39 +0200739 LIST_APPEND(&LIST_ELEM(s->list.n, struct stream *, list)->back_refs, &bref->users);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100740 bref->ref = s->list.n;
Willy Tarreau49de6852021-02-24 13:46:12 +0100741 __ha_barrier_store();
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100742 }
Willy Tarreau2b718102021-04-21 07:32:39 +0200743 LIST_DELETE(&s->list);
Emeric Brun6b35e9b2017-06-30 16:23:45 +0200744
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100745 /* applets do not release session yet */
746 must_free_sess = objt_appctx(sess->origin) && sess->origin == s->si[0].end;
747
Olivier Houchard4fdec7a2018-10-11 17:09:14 +0200748
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200749 si_release_endpoint(&s->si[1]);
750 si_release_endpoint(&s->si[0]);
Willy Tarreaufeb76402015-04-03 14:10:06 +0200751
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200752 tasklet_free(s->si[0].wait_event.tasklet);
753 tasklet_free(s->si[1].wait_event.tasklet);
Olivier Houchardd7bd3e32018-10-18 16:22:02 +0200754
Olivier Houcharda254a372019-04-05 15:30:12 +0200755 b_free(&s->si[1].l7_buffer);
Olivier Houchard25607af2018-11-23 14:50:47 +0100756 if (must_free_sess) {
757 sess->origin = NULL;
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100758 session_free(sess);
Olivier Houchard25607af2018-11-23 14:50:47 +0100759 }
Willy Tarreau5bcfd562017-11-29 14:05:38 +0100760
Willy Tarreau90420602019-07-18 15:09:57 +0200761 sockaddr_free(&s->target_addr);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100762 pool_free(pool_head_stream, s);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200763
764 /* We may want to free the maximum amount of pools if the proxy is stopping */
Willy Tarreauc3914d42020-09-24 08:39:22 +0200765 if (fe && unlikely(fe->disabled)) {
Willy Tarreaubafbe012017-11-24 17:34:44 +0100766 pool_flush(pool_head_buffer);
767 pool_flush(pool_head_http_txn);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100768 pool_flush(pool_head_requri);
769 pool_flush(pool_head_capture);
770 pool_flush(pool_head_stream);
771 pool_flush(pool_head_session);
772 pool_flush(pool_head_connection);
773 pool_flush(pool_head_pendconn);
774 pool_flush(fe->req_cap_pool);
775 pool_flush(fe->rsp_cap_pool);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200776 }
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200777}
778
Willy Tarreau656859d2014-11-25 19:46:36 +0100779
Willy Tarreau87b09662015-04-03 00:22:06 +0200780/* Allocates a work buffer for stream <s>. It is meant to be called inside
781 * process_stream(). It will only allocate the side needed for the function
Willy Tarreaubc39a5d2015-04-20 15:52:18 +0200782 * to work fine, which is the response buffer so that an error message may be
783 * built and returned. Response buffers may be allocated from the reserve, this
784 * is critical to ensure that a response may always flow and will never block a
785 * server from releasing a connection. Returns 0 in case of failure, non-zero
786 * otherwise.
Willy Tarreau656859d2014-11-25 19:46:36 +0100787 */
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100788static int stream_alloc_work_buffer(struct stream *s)
Willy Tarreau656859d2014-11-25 19:46:36 +0100789{
Willy Tarreaud68d4f12021-03-22 14:44:31 +0100790 if (b_alloc(&s->res.buf))
Willy Tarreau656859d2014-11-25 19:46:36 +0100791 return 1;
Willy Tarreau656859d2014-11-25 19:46:36 +0100792 return 0;
793}
794
795/* releases unused buffers after processing. Typically used at the end of the
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100796 * update() functions. It will try to wake up as many tasks/applets as the
797 * number of buffers that it releases. In practice, most often streams are
798 * blocked on a single buffer, so it makes sense to try to wake two up when two
799 * buffers are released at once.
Willy Tarreau656859d2014-11-25 19:46:36 +0100800 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200801void stream_release_buffers(struct stream *s)
Willy Tarreau656859d2014-11-25 19:46:36 +0100802{
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100803 int offer = 0;
Willy Tarreau656859d2014-11-25 19:46:36 +0100804
Willy Tarreau0c7ed5d2018-07-10 09:53:31 +0200805 if (c_size(&s->req) && c_empty(&s->req)) {
Willy Tarreau4d77bbf2021-02-20 12:02:46 +0100806 offer++;
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100807 b_free(&s->req.buf);
808 }
Willy Tarreau0c7ed5d2018-07-10 09:53:31 +0200809 if (c_size(&s->res) && c_empty(&s->res)) {
Willy Tarreau4d77bbf2021-02-20 12:02:46 +0100810 offer++;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100811 b_free(&s->res.buf);
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100812 }
Willy Tarreau656859d2014-11-25 19:46:36 +0100813
Willy Tarreaubf883e02014-11-25 21:10:35 +0100814 /* if we're certain to have at least 1 buffer available, and there is
815 * someone waiting, we can wake up a waiter and offer them.
816 */
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100817 if (offer)
Willy Tarreau4d77bbf2021-02-20 12:02:46 +0100818 offer_buffers(s, offer);
Willy Tarreau656859d2014-11-25 19:46:36 +0100819}
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200820
Willy Tarreau87b09662015-04-03 00:22:06 +0200821void stream_process_counters(struct stream *s)
Willy Tarreau30e71012007-11-26 20:15:35 +0100822{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200823 struct session *sess = s->sess;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100824 unsigned long long bytes;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100825 int i;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100826
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100827 bytes = s->req.total - s->logs.bytes_in;
828 s->logs.bytes_in = s->req.total;
829 if (bytes) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100830 _HA_ATOMIC_ADD(&sess->fe->fe_counters.bytes_in, bytes);
831 _HA_ATOMIC_ADD(&s->be->be_counters.bytes_in, bytes);
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100832
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100833 if (objt_server(s->target))
Willy Tarreau66182592021-12-06 07:01:02 +0000834 _HA_ATOMIC_ADD(&__objt_server(s->target)->counters.bytes_in, bytes);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200835
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200836 if (sess->listener && sess->listener->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100837 _HA_ATOMIC_ADD(&sess->listener->counters->bytes_in, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200838
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100839 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Christopher Faulet84600632020-10-06 13:52:40 +0200840 if (!stkctr_inc_bytes_in_ctr(&s->stkctr[i], bytes))
841 stkctr_inc_bytes_in_ctr(&sess->stkctr[i], bytes);
Willy Tarreau30e71012007-11-26 20:15:35 +0100842 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100843 }
844
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100845 bytes = s->res.total - s->logs.bytes_out;
846 s->logs.bytes_out = s->res.total;
847 if (bytes) {
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100848 _HA_ATOMIC_ADD(&sess->fe->fe_counters.bytes_out, bytes);
849 _HA_ATOMIC_ADD(&s->be->be_counters.bytes_out, bytes);
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100850
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100851 if (objt_server(s->target))
Willy Tarreau66182592021-12-06 07:01:02 +0000852 _HA_ATOMIC_ADD(&__objt_server(s->target)->counters.bytes_out, bytes);
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200853
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200854 if (sess->listener && sess->listener->counters)
Olivier Houcharddc6111e2019-03-08 18:54:51 +0100855 _HA_ATOMIC_ADD(&sess->listener->counters->bytes_out, bytes);
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200856
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100857 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Christopher Faulet84600632020-10-06 13:52:40 +0200858 if (!stkctr_inc_bytes_out_ctr(&s->stkctr[i], bytes))
859 stkctr_inc_bytes_out_ctr(&sess->stkctr[i], bytes);
Willy Tarreau30e71012007-11-26 20:15:35 +0100860 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100861 }
862}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200863
Amaury Denoyelleb7150782020-12-10 13:43:51 +0100864int stream_set_timeout(struct stream *s, enum act_timeout_name name, int timeout)
865{
Amaury Denoyelle90d3d882020-12-10 13:43:52 +0100866 switch (name) {
867 case ACT_TIMEOUT_SERVER:
868 s->req.wto = timeout;
869 s->res.rto = timeout;
870 return 1;
871
Amaury Denoyellefb504432020-12-10 13:43:53 +0100872 case ACT_TIMEOUT_TUNNEL:
873 s->tunnel_timeout = timeout;
874 return 1;
875
Amaury Denoyelle90d3d882020-12-10 13:43:52 +0100876 default:
877 return 0;
878 }
Amaury Denoyelleb7150782020-12-10 13:43:51 +0100879}
880
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100881/*
882 * This function handles the transition between the SI_ST_CON state and the
Willy Tarreau85e7d002010-05-31 11:57:51 +0200883 * SI_ST_EST state. It must only be called after switching from SI_ST_CON (or
Willy Tarreau4f283fa2019-06-05 14:34:03 +0200884 * 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 +0200885 * Note that it will switch the interface to SI_ST_DIS if we already have
886 * the CF_SHUTR flag, it means we were able to forward the request, and
887 * receive the response, before process_stream() had the opportunity to
888 * make the switch from SI_ST_CON to SI_ST_EST. When that happens, we want
Willy Tarreau3a9312a2020-01-09 18:43:15 +0100889 * to go through back_establish() anyway, to make sure the analysers run.
Willy Tarreaud66ed882019-06-05 18:02:04 +0200890 * Timeouts are cleared. Error are reported on the channel so that analysers
891 * can handle them.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100892 */
Willy Tarreau3a9312a2020-01-09 18:43:15 +0100893static void back_establish(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100894{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100895 struct stream_interface *si = &s->si[1];
Willy Tarreaud66ed882019-06-05 18:02:04 +0200896 struct conn_stream *srv_cs = objt_cs(si->end);
897 struct connection *conn = srv_cs ? srv_cs->conn : objt_conn(si->end);
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100898 struct channel *req = &s->req;
899 struct channel *rep = &s->res;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100900
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100901 DBG_TRACE_ENTER(STRM_EV_STRM_PROC|STRM_EV_SI_ST, s);
Willy Tarreaud66ed882019-06-05 18:02:04 +0200902 /* First, centralize the timers information, and clear any irrelevant
903 * timeout.
904 */
Willy Tarreau0e37f1c2013-12-31 23:06:46 +0100905 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreaud66ed882019-06-05 18:02:04 +0200906 si->exp = TICK_ETERNITY;
907 si->flags &= ~SI_FL_EXP;
908
909 /* errors faced after sending data need to be reported */
910 if (si->flags & SI_FL_ERR && req->flags & CF_WROTE_DATA) {
911 /* Don't add CF_WRITE_ERROR if we're here because
912 * early data were rejected by the server, or
913 * http_wait_for_response() will never be called
914 * to send a 425.
915 */
916 if (conn && conn->err_code != CO_ER_SSL_EARLY_FAILED)
917 req->flags |= CF_WRITE_ERROR;
918 rep->flags |= CF_READ_ERROR;
919 si->err_type = SI_ET_DATA_ERR;
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100920 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 +0200921 }
922
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100923 if (objt_server(s->target))
Willy Tarreau66182592021-12-06 07:01:02 +0000924 health_adjust(__objt_server(s->target), HANA_STATUS_L4_OK);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100925
Christopher Faulet1bb6afa2021-03-08 17:57:53 +0100926 if (!IS_HTX_STRM(s)) { /* let's allow immediate data connection in this case */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100927 /* if the user wants to log as soon as possible, without counting
928 * bytes from the server, then this is the right moment. */
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200929 if (!LIST_ISEMPTY(&strm_fe(s)->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau66425e32018-07-25 06:55:12 +0200930 /* note: no pend_pos here, session is established */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100931 s->logs.t_close = s->logs.t_connect; /* to get a valid end date */
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100932 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100933 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100934 }
935 else {
Willy Tarreaud81ca042013-12-31 22:33:13 +0100936 rep->flags |= CF_READ_DONTWAIT; /* a single read is enough to get response headers */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100937 }
938
Willy Tarreau0007d0a2018-12-11 18:01:38 +0100939 rep->analysers |= strm_fe(s)->fe_rsp_ana | s->be->be_rsp_ana;
Christopher Faulet309c6412015-12-02 09:57:32 +0100940
Willy Tarreau8bb2ffb2018-11-14 17:54:13 +0100941 si_rx_endp_more(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200942 rep->flags |= CF_READ_ATTACHED; /* producer is now attached */
Olivier Houchard9aaf7782017-09-13 18:30:23 +0200943 if (objt_cs(si->end)) {
Amaury Denoyelle90d3d882020-12-10 13:43:52 +0100944 /* real connections have timeouts
945 * if already defined, it means that a set-timeout rule has
946 * been executed so do not overwrite them
947 */
948 if (!tick_isset(req->wto))
949 req->wto = s->be->timeout.server;
950 if (!tick_isset(rep->rto))
951 rep->rto = s->be->timeout.server;
Amaury Denoyellefb504432020-12-10 13:43:53 +0100952 if (!tick_isset(s->tunnel_timeout))
953 s->tunnel_timeout = s->be->timeout.tunnel;
Amaury Denoyelle90d3d882020-12-10 13:43:52 +0100954
Olivier Houchard47e9a1a2018-11-07 17:55:19 +0100955 /* The connection is now established, try to read data from the
956 * underlying layer, and subscribe to recv events. We use a
957 * delayed recv here to give a chance to the data to flow back
958 * by the time we process other tasks.
959 */
960 si_chk_rcv(si);
Willy Tarreaud04e8582010-05-31 12:31:35 +0200961 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100962 req->wex = TICK_ETERNITY;
Olivier Houchard78595262019-07-26 14:54:34 +0200963 /* If we managed to get the whole response, and we don't have anything
964 * left to send, or can't, switch to SI_ST_DIS now. */
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100965 if (rep->flags & (CF_SHUTR | CF_SHUTW)) {
Olivier Houchardaacc4052019-05-21 17:43:50 +0200966 si->state = SI_ST_DIS;
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100967 DBG_TRACE_STATE("response channel shutdwn for read/write", STRM_EV_STRM_PROC|STRM_EV_SI_ST|STRM_EV_STRM_ERR, s);
968 }
969
Christopher Fauleteea8fc72019-11-05 16:18:10 +0100970 DBG_TRACE_LEAVE(STRM_EV_STRM_PROC|STRM_EV_SI_ST, s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100971}
972
Willy Tarreau87b09662015-04-03 00:22:06 +0200973/* Set correct stream termination flags in case no analyser has done it. It
Simon Hormandec5be42011-06-08 09:19:07 +0900974 * also counts a failed request if the server state has not reached the request
975 * stage.
976 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200977static void sess_set_term_flags(struct stream *s)
Simon Hormandec5be42011-06-08 09:19:07 +0900978{
Willy Tarreaue7dff022015-04-03 01:14:29 +0200979 if (!(s->flags & SF_FINST_MASK)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +0200980 if (s->si[1].state == SI_ST_INI) {
981 /* anything before REQ in fact */
Willy Tarreau4781b152021-04-06 13:53:36 +0200982 _HA_ATOMIC_INC(&strm_fe(s)->fe_counters.failed_req);
Willy Tarreau2c1068c2015-09-23 12:21:21 +0200983 if (strm_li(s) && strm_li(s)->counters)
Willy Tarreau4781b152021-04-06 13:53:36 +0200984 _HA_ATOMIC_INC(&strm_li(s)->counters->failed_req);
Simon Hormandec5be42011-06-08 09:19:07 +0900985
Willy Tarreaue7dff022015-04-03 01:14:29 +0200986 s->flags |= SF_FINST_R;
Simon Hormandec5be42011-06-08 09:19:07 +0900987 }
988 else if (s->si[1].state == SI_ST_QUE)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200989 s->flags |= SF_FINST_Q;
Willy Tarreau4f283fa2019-06-05 14:34:03 +0200990 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 +0200991 s->flags |= SF_FINST_C;
Simon Hormandec5be42011-06-08 09:19:07 +0900992 else if (s->si[1].state == SI_ST_EST || s->si[1].prev_state == SI_ST_EST)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200993 s->flags |= SF_FINST_D;
Simon Hormandec5be42011-06-08 09:19:07 +0900994 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200995 s->flags |= SF_FINST_L;
Simon Hormandec5be42011-06-08 09:19:07 +0900996 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100997}
998
Thierry FOURNIER5a363e72015-09-27 19:29:33 +0200999/* This function parses the use-service action ruleset. It executes
1000 * the associated ACL and set an applet as a stream or txn final node.
1001 * it returns ACT_RET_ERR if an error occurs, the proxy left in
Ilya Shipitsinc02a23f2020-05-06 00:53:22 +05001002 * consistent state. It returns ACT_RET_STOP in success case because
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001003 * use-service must be a terminal action. Returns ACT_RET_YIELD
1004 * if the initialisation function require more data.
1005 */
1006enum act_return process_use_service(struct act_rule *rule, struct proxy *px,
1007 struct session *sess, struct stream *s, int flags)
1008
1009{
1010 struct appctx *appctx;
1011
1012 /* Initialises the applet if it is required. */
Christopher Faulet105ba6c2019-12-18 14:41:51 +01001013 if (flags & ACT_OPT_FIRST) {
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001014 /* Register applet. this function schedules the applet. */
1015 s->target = &rule->applet.obj_type;
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001016 if (unlikely(!si_register_handler(&s->si[1], objt_applet(s->target))))
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001017 return ACT_RET_ERR;
1018
1019 /* Initialise the context. */
1020 appctx = si_appctx(&s->si[1]);
1021 memset(&appctx->ctx, 0, sizeof(appctx->ctx));
1022 appctx->rule = rule;
1023 }
1024 else
1025 appctx = si_appctx(&s->si[1]);
1026
Ilya Shipitsinc02a23f2020-05-06 00:53:22 +05001027 /* Stops the applet scheduling, in case of the init function miss
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001028 * some data.
1029 */
Willy Tarreau0cd3bd62018-11-06 18:46:37 +01001030 si_stop_get(&s->si[1]);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001031
1032 /* Call initialisation. */
1033 if (rule->applet.init)
1034 switch (rule->applet.init(appctx, px, s)) {
1035 case 0: return ACT_RET_ERR;
1036 case 1: break;
1037 default: return ACT_RET_YIELD;
1038 }
1039
Christopher Faulet2571bc62019-03-01 11:44:26 +01001040 if (rule->from != ACT_F_HTTP_REQ) {
1041 if (sess->fe == s->be) /* report it if the request was intercepted by the frontend */
Willy Tarreau4781b152021-04-06 13:53:36 +02001042 _HA_ATOMIC_INC(&sess->fe->fe_counters.intercepted_req);
Christopher Faulet2571bc62019-03-01 11:44:26 +01001043
1044 /* The flag SF_ASSIGNED prevent from server assignment. */
1045 s->flags |= SF_ASSIGNED;
1046 }
1047
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001048 /* Now we can schedule the applet. */
Willy Tarreau0cd3bd62018-11-06 18:46:37 +01001049 si_cant_get(&s->si[1]);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001050 appctx_wakeup(appctx);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02001051 return ACT_RET_STOP;
1052}
1053
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001054/* This stream analyser checks the switching rules and changes the backend
Willy Tarreau4de91492010-01-22 19:10:05 +01001055 * if appropriate. The default_backend rule is also considered, then the
1056 * target backend's forced persistence rules are also evaluated last if any.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001057 * It returns 1 if the processing can continue on next analysers, or zero if it
1058 * either needs more data or wants to immediately abort the request.
1059 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001060static int process_switching_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001061{
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001062 struct persist_rule *prst_rule;
Willy Tarreau192252e2015-04-04 01:47:55 +02001063 struct session *sess = s->sess;
1064 struct proxy *fe = sess->fe;
Willy Tarreau4de91492010-01-22 19:10:05 +01001065
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001066 req->analysers &= ~an_bit;
1067 req->analyse_exp = TICK_ETERNITY;
1068
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001069 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001070
1071 /* now check whether we have some switching rules for this request */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001072 if (!(s->flags & SF_BE_ASSIGNED)) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001073 struct switching_rule *rule;
1074
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001075 list_for_each_entry(rule, &fe->switching_rules, list) {
Willy Tarreauf51658d2014-04-23 01:21:56 +02001076 int ret = 1;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001077
Willy Tarreauf51658d2014-04-23 01:21:56 +02001078 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001079 ret = acl_exec_cond(rule->cond, fe, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001080 ret = acl_pass(ret);
1081 if (rule->cond->pol == ACL_COND_UNLESS)
1082 ret = !ret;
1083 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001084
1085 if (ret) {
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001086 /* If the backend name is dynamic, try to resolve the name.
1087 * If we can't resolve the name, or if any error occurs, break
1088 * the loop and fallback to the default backend.
1089 */
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001090 struct proxy *backend = NULL;
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001091
1092 if (rule->dynamic) {
Willy Tarreau83061a82018-07-13 11:56:34 +02001093 struct buffer *tmp;
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001094
1095 tmp = alloc_trash_chunk();
1096 if (!tmp)
1097 goto sw_failed;
1098
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001099 if (build_logline(s, tmp->area, tmp->size, &rule->be.expr))
1100 backend = proxy_be_by_name(tmp->area);
Dragan Dosen2ae327e2017-10-26 11:25:10 +02001101
1102 free_trash_chunk(tmp);
1103 tmp = NULL;
1104
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001105 if (!backend)
1106 break;
1107 }
1108 else
1109 backend = rule->be.backend;
1110
Willy Tarreau87b09662015-04-03 00:22:06 +02001111 if (!stream_set_backend(s, backend))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001112 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001113 break;
1114 }
1115 }
1116
1117 /* To ensure correct connection accounting on the backend, we
1118 * have to assign one if it was not set (eg: a listen). This
1119 * measure also takes care of correctly setting the default
Christopher Fauletf0d7eb22021-03-22 15:07:51 +01001120 * backend if any. Don't do anything if an upgrade is already in
1121 * progress.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001122 */
Christopher Fauletf0d7eb22021-03-22 15:07:51 +01001123 if (!(s->flags & (SF_BE_ASSIGNED|SF_IGNORE)))
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001124 if (!stream_set_backend(s, fe->defbe.be ? fe->defbe.be : s->be))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001125 goto sw_failed;
Christopher Fauletf0d7eb22021-03-22 15:07:51 +01001126
1127 /* No backend assigned but no error reported. It happens when a
1128 * TCP stream is upgraded to HTTP/2.
1129 */
1130 if ((s->flags & (SF_BE_ASSIGNED|SF_IGNORE)) == SF_IGNORE) {
1131 DBG_TRACE_DEVEL("leaving with no backend because of a destructive upgrade", STRM_EV_STRM_ANA, s);
1132 return 0;
1133 }
1134
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001135 }
1136
Willy Tarreaufb356202010-08-03 14:02:05 +02001137 /* 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 +02001138 if (fe == s->be) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001139 s->req.analysers &= ~AN_REQ_INSPECT_BE;
1140 s->req.analysers &= ~AN_REQ_HTTP_PROCESS_BE;
Christopher Faulet0184ea72017-01-05 14:06:34 +01001141 s->req.analysers &= ~AN_REQ_FLT_START_BE;
Willy Tarreaufb356202010-08-03 14:02:05 +02001142 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001143
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001144 /* 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 +02001145 * persistence rule, and report that in the stream.
Willy Tarreau4de91492010-01-22 19:10:05 +01001146 */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001147 list_for_each_entry(prst_rule, &s->be->persist_rules, list) {
Willy Tarreau4de91492010-01-22 19:10:05 +01001148 int ret = 1;
1149
1150 if (prst_rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001151 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 +01001152 ret = acl_pass(ret);
1153 if (prst_rule->cond->pol == ACL_COND_UNLESS)
1154 ret = !ret;
1155 }
1156
1157 if (ret) {
1158 /* no rule, or the rule matches */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001159 if (prst_rule->type == PERSIST_TYPE_FORCE) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001160 s->flags |= SF_FORCE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001161 } else {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001162 s->flags |= SF_IGNORE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001163 }
Willy Tarreau4de91492010-01-22 19:10:05 +01001164 break;
1165 }
1166 }
1167
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001168 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001169 return 1;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001170
1171 sw_failed:
1172 /* immediately abort this request in case of allocation failure */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001173 channel_abort(&s->req);
1174 channel_abort(&s->res);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001175
Willy Tarreaue7dff022015-04-03 01:14:29 +02001176 if (!(s->flags & SF_ERR_MASK))
1177 s->flags |= SF_ERR_RESOURCE;
1178 if (!(s->flags & SF_FINST_MASK))
1179 s->flags |= SF_FINST_R;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001180
Willy Tarreaueee5b512015-04-03 23:46:31 +02001181 if (s->txn)
1182 s->txn->status = 500;
Christopher Faulet0184ea72017-01-05 14:06:34 +01001183 s->req.analysers &= AN_REQ_FLT_END;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001184 s->req.analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001185 DBG_TRACE_DEVEL("leaving on error", STRM_EV_STRM_ANA|STRM_EV_STRM_ERR, s);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001186 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001187}
1188
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001189/* This stream analyser works on a request. It applies all use-server rules on
1190 * it then returns 1. The data must already be present in the buffer otherwise
1191 * they won't match. It always returns 1.
1192 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001193static int process_server_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001194{
1195 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001196 struct session *sess = s->sess;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001197 struct server_rule *rule;
1198
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001199 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001200
Willy Tarreaue7dff022015-04-03 01:14:29 +02001201 if (!(s->flags & SF_ASSIGNED)) {
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001202 list_for_each_entry(rule, &px->server_rules, list) {
1203 int ret;
1204
Willy Tarreau192252e2015-04-04 01:47:55 +02001205 ret = acl_exec_cond(rule->cond, s->be, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001206 ret = acl_pass(ret);
1207 if (rule->cond->pol == ACL_COND_UNLESS)
1208 ret = !ret;
1209
1210 if (ret) {
Jerome Magnin824186b2020-03-29 09:37:12 +02001211 struct server *srv;
1212
1213 if (rule->dynamic) {
1214 struct buffer *tmp = get_trash_chunk();
1215
1216 if (!build_logline(s, tmp->area, tmp->size, &rule->expr))
1217 break;
1218
1219 srv = findserver(s->be, tmp->area);
1220 if (!srv)
1221 break;
1222 }
1223 else
1224 srv = rule->srv.ptr;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001225
Emeric Brun52a91d32017-08-31 14:41:55 +02001226 if ((srv->cur_state != SRV_ST_STOPPED) ||
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001227 (px->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +02001228 (s->flags & SF_FORCE_PRST)) {
1229 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001230 s->target = &srv->obj_type;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001231 break;
1232 }
1233 /* if the server is not UP, let's go on with next rules
1234 * just in case another one is suited.
1235 */
1236 }
1237 }
1238 }
1239
1240 req->analysers &= ~an_bit;
1241 req->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001242 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001243 return 1;
1244}
1245
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001246static inline void sticking_rule_find_target(struct stream *s,
1247 struct stktable *t, struct stksess *ts)
1248{
1249 struct proxy *px = s->be;
1250 struct eb32_node *node;
1251 struct dict_entry *de;
1252 void *ptr;
1253 struct server *srv;
1254
1255 /* Look for the server name previously stored in <t> stick-table */
1256 HA_RWLOCK_RDLOCK(STK_SESS_LOCK, &ts->lock);
Thayne McCombs92149f92020-11-20 01:28:26 -07001257 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_KEY);
1258 de = stktable_data_cast(ptr, server_key);
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001259 HA_RWLOCK_RDUNLOCK(STK_SESS_LOCK, &ts->lock);
1260
1261 if (de) {
Thayne McCombs92149f92020-11-20 01:28:26 -07001262 struct ebpt_node *node;
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001263
Thayne McCombs92149f92020-11-20 01:28:26 -07001264 if (t->server_key_type == STKTABLE_SRV_NAME) {
1265 node = ebis_lookup(&px->conf.used_server_name, de->value.key);
1266 if (node) {
1267 srv = container_of(node, struct server, conf.name);
1268 goto found;
1269 }
1270 } else if (t->server_key_type == STKTABLE_SRV_ADDR) {
1271 HA_RWLOCK_RDLOCK(PROXY_LOCK, &px->lock);
1272 node = ebis_lookup(&px->used_server_addr, de->value.key);
1273 HA_RWLOCK_RDUNLOCK(PROXY_LOCK, &px->lock);
1274 if (node) {
1275 srv = container_of(node, struct server, addr_node);
1276 goto found;
1277 }
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001278 }
1279 }
1280
1281 /* Look for the server ID */
1282 HA_RWLOCK_RDLOCK(STK_SESS_LOCK, &ts->lock);
1283 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_ID);
1284 node = eb32_lookup(&px->conf.used_server_id, stktable_data_cast(ptr, server_id));
1285 HA_RWLOCK_RDUNLOCK(STK_SESS_LOCK, &ts->lock);
1286
1287 if (!node)
1288 return;
1289
1290 srv = container_of(node, struct server, conf.id);
1291 found:
1292 if ((srv->cur_state != SRV_ST_STOPPED) ||
1293 (px->options & PR_O_PERSIST) || (s->flags & SF_FORCE_PRST)) {
1294 s->flags |= SF_DIRECT | SF_ASSIGNED;
1295 s->target = &srv->obj_type;
1296 }
1297}
1298
Emeric Brun1d33b292010-01-04 15:47:17 +01001299/* This stream analyser works on a request. It applies all sticking rules on
1300 * it then returns 1. The data must already be present in the buffer otherwise
1301 * they won't match. It always returns 1.
1302 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001303static int process_sticking_rules(struct stream *s, struct channel *req, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001304{
1305 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001306 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001307 struct sticking_rule *rule;
1308
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001309 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001310
1311 list_for_each_entry(rule, &px->sticking_rules, list) {
1312 int ret = 1 ;
1313 int i;
1314
Willy Tarreau9667a802013-12-09 12:52:13 +01001315 /* Only the first stick store-request of each table is applied
1316 * and other ones are ignored. The purpose is to allow complex
1317 * configurations which look for multiple entries by decreasing
1318 * order of precision and to stop at the first which matches.
1319 * An example could be a store of the IP address from an HTTP
1320 * header first, then from the source if not found.
1321 */
Jerome Magninbee00ad2020-01-16 17:37:21 +01001322 if (rule->flags & STK_IS_STORE) {
1323 for (i = 0; i < s->store_count; i++) {
1324 if (rule->table.t == s->store[i].table)
1325 break;
1326 }
Emeric Brun1d33b292010-01-04 15:47:17 +01001327
Jerome Magninbee00ad2020-01-16 17:37:21 +01001328 if (i != s->store_count)
1329 continue;
1330 }
Emeric Brun1d33b292010-01-04 15:47:17 +01001331
1332 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001333 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001334 ret = acl_pass(ret);
1335 if (rule->cond->pol == ACL_COND_UNLESS)
1336 ret = !ret;
1337 }
1338
1339 if (ret) {
1340 struct stktable_key *key;
1341
Willy Tarreau192252e2015-04-04 01:47:55 +02001342 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 +01001343 if (!key)
1344 continue;
1345
1346 if (rule->flags & STK_IS_MATCH) {
1347 struct stksess *ts;
1348
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001349 if ((ts = stktable_lookup_key(rule->table.t, key)) != NULL) {
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001350 if (!(s->flags & SF_ASSIGNED))
1351 sticking_rule_find_target(s, rule->table.t, ts);
Emeric Brun819fc6f2017-06-13 19:37:32 +02001352 stktable_touch_local(rule->table.t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001353 }
1354 }
1355 if (rule->flags & STK_IS_STORE) {
1356 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
1357 struct stksess *ts;
1358
1359 ts = stksess_new(rule->table.t, key);
1360 if (ts) {
1361 s->store[s->store_count].table = rule->table.t;
1362 s->store[s->store_count++].ts = ts;
1363 }
1364 }
1365 }
1366 }
1367 }
1368
1369 req->analysers &= ~an_bit;
1370 req->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001371 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001372 return 1;
1373}
1374
1375/* This stream analyser works on a response. It applies all store rules on it
1376 * then returns 1. The data must already be present in the buffer otherwise
1377 * they won't match. It always returns 1.
1378 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001379static int process_store_rules(struct stream *s, struct channel *rep, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001380{
1381 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001382 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001383 struct sticking_rule *rule;
1384 int i;
Willy Tarreau9667a802013-12-09 12:52:13 +01001385 int nbreq = s->store_count;
Emeric Brun1d33b292010-01-04 15:47:17 +01001386
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001387 DBG_TRACE_ENTER(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001388
1389 list_for_each_entry(rule, &px->storersp_rules, list) {
1390 int ret = 1 ;
Emeric Brun1d33b292010-01-04 15:47:17 +01001391
Willy Tarreau9667a802013-12-09 12:52:13 +01001392 /* Only the first stick store-response of each table is applied
1393 * and other ones are ignored. The purpose is to allow complex
1394 * configurations which look for multiple entries by decreasing
1395 * order of precision and to stop at the first which matches.
1396 * An example could be a store of a set-cookie value, with a
1397 * fallback to a parameter found in a 302 redirect.
1398 *
1399 * The store-response rules are not allowed to override the
1400 * store-request rules for the same table, but they may coexist.
1401 * Thus we can have up to one store-request entry and one store-
1402 * response entry for the same table at any time.
1403 */
1404 for (i = nbreq; i < s->store_count; i++) {
1405 if (rule->table.t == s->store[i].table)
1406 break;
1407 }
1408
1409 /* skip existing entries for this table */
1410 if (i < s->store_count)
1411 continue;
1412
Emeric Brun1d33b292010-01-04 15:47:17 +01001413 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001414 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_RES|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001415 ret = acl_pass(ret);
1416 if (rule->cond->pol == ACL_COND_UNLESS)
1417 ret = !ret;
1418 }
1419
1420 if (ret) {
1421 struct stktable_key *key;
1422
Willy Tarreau192252e2015-04-04 01:47:55 +02001423 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 +01001424 if (!key)
1425 continue;
1426
Willy Tarreau37e340c2013-12-06 23:05:21 +01001427 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001428 struct stksess *ts;
1429
1430 ts = stksess_new(rule->table.t, key);
1431 if (ts) {
1432 s->store[s->store_count].table = rule->table.t;
Emeric Brun1d33b292010-01-04 15:47:17 +01001433 s->store[s->store_count++].ts = ts;
1434 }
1435 }
1436 }
1437 }
1438
1439 /* process store request and store response */
1440 for (i = 0; i < s->store_count; i++) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001441 struct stksess *ts;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001442 void *ptr;
Thayne McCombs92149f92020-11-20 01:28:26 -07001443 char *key;
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001444 struct dict_entry *de;
Thayne McCombs92149f92020-11-20 01:28:26 -07001445 struct stktable *t = s->store[i].table;
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001446
Christopher Faulet2f6fed22022-10-25 16:45:38 +02001447 if (!objt_server(s->target) || (__objt_server(s->target)->flags & SRV_F_NON_STICK)) {
Simon Hormanfa461682011-06-25 09:39:49 +09001448 stksess_free(s->store[i].table, s->store[i].ts);
1449 s->store[i].ts = NULL;
1450 continue;
1451 }
1452
Thayne McCombs92149f92020-11-20 01:28:26 -07001453 ts = stktable_set_entry(t, s->store[i].ts);
Emeric Brun819fc6f2017-06-13 19:37:32 +02001454 if (ts != s->store[i].ts) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001455 /* the entry already existed, we can free ours */
Thayne McCombs92149f92020-11-20 01:28:26 -07001456 stksess_free(t, s->store[i].ts);
Emeric Brun1d33b292010-01-04 15:47:17 +01001457 }
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001458 s->store[i].ts = NULL;
Emeric Brun819fc6f2017-06-13 19:37:32 +02001459
Thayne McCombs92149f92020-11-20 01:28:26 -07001460 if (t->server_key_type == STKTABLE_SRV_NAME)
1461 key = __objt_server(s->target)->id;
1462 else if (t->server_key_type == STKTABLE_SRV_ADDR)
1463 key = __objt_server(s->target)->addr_node.key;
1464 else
Willy Tarreau8c3cdf02022-10-12 10:35:41 +02001465 key = NULL;
Thayne McCombs92149f92020-11-20 01:28:26 -07001466
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001467 HA_RWLOCK_WRLOCK(STK_SESS_LOCK, &ts->lock);
Willy Tarreau8c3cdf02022-10-12 10:35:41 +02001468 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_ID);
Christopher Faulet13f43a72022-10-25 16:28:13 +02001469 stktable_data_cast(ptr, server_id) = __objt_server(s->target)->puid;
Willy Tarreau8c3cdf02022-10-12 10:35:41 +02001470
1471 if (key) {
1472 de = dict_insert(&server_key_dict, key);
1473 if (de) {
1474 ptr = __stktable_data_ptr(t, ts, STKTABLE_DT_SERVER_KEY);
1475 stktable_data_cast(ptr, server_key) = de;
1476 }
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001477 }
Willy Tarreau8c3cdf02022-10-12 10:35:41 +02001478
Frédéric Lécaille03cdf552019-05-20 10:08:27 +02001479 HA_RWLOCK_WRUNLOCK(STK_SESS_LOCK, &ts->lock);
1480
Thayne McCombs92149f92020-11-20 01:28:26 -07001481 stktable_touch_local(t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001482 }
Willy Tarreau2a164ee2010-06-18 09:57:45 +02001483 s->store_count = 0; /* everything is stored */
Emeric Brun1d33b292010-01-04 15:47:17 +01001484
1485 rep->analysers &= ~an_bit;
1486 rep->analyse_exp = TICK_ETERNITY;
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001487
1488 DBG_TRACE_LEAVE(STRM_EV_STRM_ANA, s);
Emeric Brun1d33b292010-01-04 15:47:17 +01001489 return 1;
1490}
1491
Christopher Faulet6c1fd982021-03-15 10:42:02 +01001492/* Set the stream to HTTP mode, if necessary. The minimal request HTTP analysers
1493 * are set and the client mux is upgraded. It returns 1 if the stream processing
1494 * may continue or 0 if it should be stopped. It happens on error or if the
Christopher Fauletae863c62021-03-15 12:03:44 +01001495 * upgrade required a new stream. The mux protocol may be specified.
Christopher Faulet6c1fd982021-03-15 10:42:02 +01001496 */
Christopher Fauletae863c62021-03-15 12:03:44 +01001497int stream_set_http_mode(struct stream *s, const struct mux_proto_list *mux_proto)
Christopher Faulet6c1fd982021-03-15 10:42:02 +01001498{
1499 struct connection *conn;
1500 struct conn_stream *cs;
1501
1502 /* Already an HTTP stream */
1503 if (IS_HTX_STRM(s))
1504 return 1;
1505
1506 s->req.analysers |= AN_REQ_WAIT_HTTP|AN_REQ_HTTP_PROCESS_FE;
1507
1508 if (unlikely(!s->txn && !http_create_txn(s)))
1509 return 0;
1510
1511 conn = objt_conn(strm_sess(s)->origin);
1512 cs = objt_cs(s->si[0].end);
1513 if (conn && cs) {
1514 si_rx_endp_more(&s->si[0]);
1515 /* Make sure we're unsubscribed, the the new
1516 * mux will probably want to subscribe to
1517 * the underlying XPRT
1518 */
1519 if (s->si[0].wait_event.events)
1520 conn->mux->unsubscribe(cs, s->si[0].wait_event.events,
1521 &s->si[0].wait_event);
Christopher Fauletae863c62021-03-15 12:03:44 +01001522
Christopher Faulet6c1fd982021-03-15 10:42:02 +01001523 if (conn->mux->flags & MX_FL_NO_UPG)
1524 return 0;
Christopher Fauletae863c62021-03-15 12:03:44 +01001525 if (conn_upgrade_mux_fe(conn, cs, &s->req.buf,
1526 (mux_proto ? mux_proto->token : ist("")),
1527 PROTO_MODE_HTTP) == -1)
Christopher Faulet6c1fd982021-03-15 10:42:02 +01001528 return 0;
1529
1530 s->req.flags &= ~(CF_READ_PARTIAL|CF_AUTO_CONNECT);
1531 s->req.total = 0;
1532 s->flags |= SF_IGNORE;
1533 if (strcmp(conn->mux->name, "H2") == 0) {
1534 /* For HTTP/2, destroy the conn_stream, disable logging,
1535 * and abort the stream process. Thus it will be
1536 * silently destroyed. The new mux will create new
1537 * streams.
1538 */
1539 cs_free(cs);
1540 si_detach_endpoint(&s->si[0]);
1541 s->logs.logwait = 0;
1542 s->logs.level = 0;
1543 channel_abort(&s->req);
1544 channel_abort(&s->res);
1545 s->req.analysers &= AN_REQ_FLT_END;
1546 s->req.analyse_exp = TICK_ETERNITY;
1547 }
1548 }
1549
1550 return 1;
1551}
1552
1553
1554
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001555/* This macro is very specific to the function below. See the comments in
Willy Tarreau87b09662015-04-03 00:22:06 +02001556 * process_stream() below to understand the logic and the tests.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001557 */
1558#define UPDATE_ANALYSERS(real, list, back, flag) { \
1559 list = (((list) & ~(flag)) | ~(back)) & (real); \
1560 back = real; \
1561 if (!(list)) \
1562 break; \
1563 if (((list) ^ ((list) & ((list) - 1))) < (flag)) \
1564 continue; \
1565}
1566
Christopher Fauleta9215b72016-05-11 17:06:28 +02001567/* These 2 following macros call an analayzer for the specified channel if the
1568 * right flag is set. The first one is used for "filterable" analyzers. If a
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001569 * stream has some registered filters, pre and post analyaze callbacks are
Christopher Faulet0184ea72017-01-05 14:06:34 +01001570 * called. The second are used for other analyzers (AN_REQ/RES_FLT_* and
Christopher Fauleta9215b72016-05-11 17:06:28 +02001571 * AN_REQ/RES_HTTP_XFER_BODY) */
1572#define FLT_ANALYZE(strm, chn, fun, list, back, flag, ...) \
1573 { \
1574 if ((list) & (flag)) { \
1575 if (HAS_FILTERS(strm)) { \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001576 if (!flt_pre_analyze((strm), (chn), (flag))) \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001577 break; \
1578 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1579 break; \
Christopher Faulet3a394fa2016-05-11 17:13:39 +02001580 if (!flt_post_analyze((strm), (chn), (flag))) \
1581 break; \
Christopher Fauleta9215b72016-05-11 17:06:28 +02001582 } \
1583 else { \
1584 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1585 break; \
1586 } \
1587 UPDATE_ANALYSERS((chn)->analysers, (list), \
1588 (back), (flag)); \
1589 } \
1590 }
1591
1592#define ANALYZE(strm, chn, fun, list, back, flag, ...) \
1593 { \
1594 if ((list) & (flag)) { \
1595 if (!fun((strm), (chn), (flag), ##__VA_ARGS__)) \
1596 break; \
1597 UPDATE_ANALYSERS((chn)->analysers, (list), \
1598 (back), (flag)); \
1599 } \
1600 }
1601
Willy Tarreau87b09662015-04-03 00:22:06 +02001602/* Processes the client, server, request and response jobs of a stream task,
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001603 * then puts it back to the wait queue in a clean state, or cleans up its
1604 * resources if it must be deleted. Returns in <next> the date the task wants
1605 * to be woken up, or TICK_ETERNITY. In order not to call all functions for
1606 * nothing too many times, the request and response buffers flags are monitored
1607 * and each function is called only if at least another function has changed at
1608 * least one flag it is interested in.
1609 */
Willy Tarreau144f84a2021-03-02 16:09:26 +01001610struct task *process_stream(struct task *t, void *context, unsigned int state)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001611{
Willy Tarreau827aee92011-03-10 16:55:02 +01001612 struct server *srv;
Olivier Houchard9f6af332018-05-25 14:04:04 +02001613 struct stream *s = context;
Willy Tarreaufb0afa72015-04-03 14:46:27 +02001614 struct session *sess = s->sess;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001615 unsigned int rqf_last, rpf_last;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001616 unsigned int rq_prod_last, rq_cons_last;
1617 unsigned int rp_cons_last, rp_prod_last;
Willy Tarreau576507f2010-01-07 00:09:04 +01001618 unsigned int req_ana_back;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001619 struct channel *req, *res;
1620 struct stream_interface *si_f, *si_b;
Willy Tarreau3d07a162019-04-25 19:15:20 +02001621 unsigned int rate;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001622
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001623 DBG_TRACE_ENTER(STRM_EV_STRM_PROC, s);
1624
Willy Tarreau7af4fa92020-06-17 20:49:49 +02001625 activity[tid].stream_calls++;
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01001626
Willy Tarreau8f128b42014-11-28 15:07:47 +01001627 req = &s->req;
1628 res = &s->res;
1629
1630 si_f = &s->si[0];
1631 si_b = &s->si[1];
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001632
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001633 /* First, attempt to receive pending data from I/O layers */
Willy Tarreauade64782018-11-17 19:51:07 +01001634 si_sync_recv(si_f);
1635 si_sync_recv(si_b);
Willy Tarreau0f8d3ab2018-10-25 10:42:39 +02001636
Willy Tarreauf675f092022-01-20 18:42:16 +01001637 /* Let's check if we're looping without making any progress, e.g. due
1638 * to a bogus analyser or the fact that we're ignoring a read0. The
1639 * call_rate counter only counts calls with no progress made.
1640 */
1641 if (!((req->flags | res->flags) & (CF_READ_PARTIAL|CF_WRITE_PARTIAL))) {
1642 rate = update_freq_ctr(&s->call_rate, 1);
1643 if (rate >= 100000 && s->call_rate.prev_ctr) // make sure to wait at least a full second
1644 stream_dump_and_crash(&s->obj_type, read_freq_ctr(&s->call_rate));
Willy Tarreau3d07a162019-04-25 19:15:20 +02001645 }
Olivier Houchardc2aa7112018-09-11 18:27:21 +02001646
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001647 /* this data may be no longer valid, clear it */
Willy Tarreaueee5b512015-04-03 23:46:31 +02001648 if (s->txn)
1649 memset(&s->txn->auth, 0, sizeof(s->txn->auth));
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001650
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02001651 /* This flag must explicitly be set every time */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001652 req->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
1653 res->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001654
1655 /* Keep a copy of req/rep flags so that we can detect shutdowns */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001656 rqf_last = req->flags & ~CF_MASK_ANALYSER;
1657 rpf_last = res->flags & ~CF_MASK_ANALYSER;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001658
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001659 /* we don't want the stream interface functions to recursively wake us up */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001660 si_f->flags |= SI_FL_DONT_WAKE;
1661 si_b->flags |= SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001662
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001663 /* update pending events */
Olivier Houchard9f6af332018-05-25 14:04:04 +02001664 s->pending_events |= (state & TASK_WOKEN_ANY);
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001665
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001666 /* 1a: Check for low level timeouts if needed. We just set a flag on
1667 * stream interfaces when their timeouts have expired.
1668 */
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001669 if (unlikely(s->pending_events & TASK_WOKEN_TIMER)) {
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001670 si_check_timeouts(si_f);
1671 si_check_timeouts(si_b);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001672
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001673 /* check channel timeouts, and close the corresponding stream interfaces
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001674 * for future reads or writes. Note: this will also concern upper layers
1675 * but we do not touch any other flag. We must be careful and correctly
1676 * detect state changes when calling them.
1677 */
1678
Willy Tarreau8f128b42014-11-28 15:07:47 +01001679 channel_check_timeouts(req);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001680
Willy Tarreau8f128b42014-11-28 15:07:47 +01001681 if (unlikely((req->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1682 si_b->flags |= SI_FL_NOLINGER;
1683 si_shutw(si_b);
Willy Tarreau14641402009-12-29 14:49:56 +01001684 }
1685
Willy Tarreau8f128b42014-11-28 15:07:47 +01001686 if (unlikely((req->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1687 if (si_f->flags & SI_FL_NOHALF)
1688 si_f->flags |= SI_FL_NOLINGER;
1689 si_shutr(si_f);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001690 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001691
Willy Tarreau8f128b42014-11-28 15:07:47 +01001692 channel_check_timeouts(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001693
Willy Tarreau8f128b42014-11-28 15:07:47 +01001694 if (unlikely((res->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1695 si_f->flags |= SI_FL_NOLINGER;
1696 si_shutw(si_f);
Willy Tarreau14641402009-12-29 14:49:56 +01001697 }
1698
Willy Tarreau8f128b42014-11-28 15:07:47 +01001699 if (unlikely((res->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1700 if (si_b->flags & SI_FL_NOHALF)
1701 si_b->flags |= SI_FL_NOLINGER;
1702 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001703 }
Willy Tarreau798f4322012-11-08 14:49:17 +01001704
Christopher Fauleta00d8172016-11-10 14:58:05 +01001705 if (HAS_FILTERS(s))
1706 flt_stream_check_timeouts(s);
1707
Willy Tarreau798f4322012-11-08 14:49:17 +01001708 /* Once in a while we're woken up because the task expires. But
1709 * this does not necessarily mean that a timeout has been reached.
Willy Tarreau87b09662015-04-03 00:22:06 +02001710 * So let's not run a whole stream processing if only an expiration
Willy Tarreau798f4322012-11-08 14:49:17 +01001711 * timeout needs to be refreshed.
1712 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001713 if (!((req->flags | res->flags) &
Willy Tarreau798f4322012-11-08 14:49:17 +01001714 (CF_SHUTR|CF_READ_ACTIVITY|CF_READ_TIMEOUT|CF_SHUTW|
Willy Tarreauede3d882018-10-24 17:17:56 +02001715 CF_WRITE_ACTIVITY|CF_WRITE_TIMEOUT|CF_ANA_TIMEOUT)) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01001716 !((si_f->flags | si_b->flags) & (SI_FL_EXP|SI_FL_ERR)) &&
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001717 ((s->pending_events & TASK_WOKEN_ANY) == TASK_WOKEN_TIMER)) {
Willy Tarreau5fb04712016-05-04 10:18:37 +02001718 si_f->flags &= ~SI_FL_DONT_WAKE;
1719 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau798f4322012-11-08 14:49:17 +01001720 goto update_exp_and_leave;
Willy Tarreau5fb04712016-05-04 10:18:37 +02001721 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001722 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001723
Willy Tarreau829bd472019-06-06 09:17:23 +02001724 resync_stream_interface:
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001725 /* below we may emit error messages so we have to ensure that we have
Christopher Faulet29078ad2022-02-01 18:53:53 +01001726 * our buffers properly allocated. If the allocation failed, an error is
1727 * triggered.
1728 *
1729 * NOTE: An error is returned because the mechanism to queue entities
1730 * waiting for a buffer is totally broken for now. However, this
1731 * part must be refactored. When it will be handled, this part
1732 * must be be reviewed too.
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001733 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001734 if (!stream_alloc_work_buffer(s)) {
Christopher Faulet29078ad2022-02-01 18:53:53 +01001735 si_f->flags |= SI_FL_ERR;
1736 si_f->err_type = SI_ET_CONN_RES;
1737
1738 si_b->flags |= SI_FL_ERR;
1739 si_b->err_type = SI_ET_CONN_RES;
1740
1741 if (!(s->flags & SF_ERR_MASK))
1742 s->flags |= SF_ERR_RESOURCE;
1743 sess_set_term_flags(s);
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001744 }
1745
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001746 /* 1b: check for low-level errors reported at the stream interface.
1747 * First we check if it's a retryable error (in which case we don't
1748 * want to tell the buffer). Otherwise we report the error one level
1749 * upper by setting flags into the buffers. Note that the side towards
1750 * the client cannot have connect (hence retryable) errors. Also, the
1751 * connection setup code must be able to deal with any type of abort.
1752 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001753 srv = objt_server(s->target);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001754 if (unlikely(si_f->flags & SI_FL_ERR)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001755 if (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001756 si_shutr(si_f);
1757 si_shutw(si_f);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001758 si_report_error(si_f);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001759 if (!(req->analysers) && !(res->analysers)) {
Willy Tarreau4781b152021-04-06 13:53:36 +02001760 _HA_ATOMIC_INC(&s->be->be_counters.cli_aborts);
1761 _HA_ATOMIC_INC(&sess->fe->fe_counters.cli_aborts);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001762 if (sess->listener && sess->listener->counters)
Willy Tarreau4781b152021-04-06 13:53:36 +02001763 _HA_ATOMIC_INC(&sess->listener->counters->cli_aborts);
Willy Tarreau827aee92011-03-10 16:55:02 +01001764 if (srv)
Willy Tarreau4781b152021-04-06 13:53:36 +02001765 _HA_ATOMIC_INC(&srv->counters.cli_aborts);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001766 if (!(s->flags & SF_ERR_MASK))
1767 s->flags |= SF_ERR_CLICL;
1768 if (!(s->flags & SF_FINST_MASK))
1769 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001770 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001771 }
1772 }
1773
Willy Tarreau8f128b42014-11-28 15:07:47 +01001774 if (unlikely(si_b->flags & SI_FL_ERR)) {
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001775 if (si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001776 si_shutr(si_b);
1777 si_shutw(si_b);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001778 si_report_error(si_b);
Willy Tarreau4781b152021-04-06 13:53:36 +02001779 _HA_ATOMIC_INC(&s->be->be_counters.failed_resp);
Willy Tarreau827aee92011-03-10 16:55:02 +01001780 if (srv)
Willy Tarreau4781b152021-04-06 13:53:36 +02001781 _HA_ATOMIC_INC(&srv->counters.failed_resp);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001782 if (!(req->analysers) && !(res->analysers)) {
Willy Tarreau4781b152021-04-06 13:53:36 +02001783 _HA_ATOMIC_INC(&s->be->be_counters.srv_aborts);
1784 _HA_ATOMIC_INC(&sess->fe->fe_counters.srv_aborts);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01001785 if (sess->listener && sess->listener->counters)
Willy Tarreau4781b152021-04-06 13:53:36 +02001786 _HA_ATOMIC_INC(&sess->listener->counters->srv_aborts);
Willy Tarreau827aee92011-03-10 16:55:02 +01001787 if (srv)
Willy Tarreau4781b152021-04-06 13:53:36 +02001788 _HA_ATOMIC_INC(&srv->counters.srv_aborts);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001789 if (!(s->flags & SF_ERR_MASK))
1790 s->flags |= SF_ERR_SRVCL;
1791 if (!(s->flags & SF_FINST_MASK))
1792 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001793 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001794 }
1795 /* note: maybe we should process connection errors here ? */
1796 }
1797
Willy Tarreau4f283fa2019-06-05 14:34:03 +02001798 if (si_state_in(si_b->state, SI_SB_CON|SI_SB_RDY)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001799 /* we were trying to establish a connection on the server side,
1800 * maybe it succeeded, maybe it failed, maybe we timed out, ...
1801 */
Willy Tarreaud66ed882019-06-05 18:02:04 +02001802 if (si_b->state == SI_ST_RDY)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001803 back_handle_st_rdy(s);
Willy Tarreaud66ed882019-06-05 18:02:04 +02001804 else if (si_b->state == SI_ST_CON)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001805 back_handle_st_con(s);
Willy Tarreaud66ed882019-06-05 18:02:04 +02001806
1807 if (si_b->state == SI_ST_CER)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001808 back_handle_st_cer(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001809 else if (si_b->state == SI_ST_EST)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01001810 back_establish(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001811
1812 /* state is now one of SI_ST_CON (still in progress), SI_ST_EST
1813 * (established), SI_ST_DIS (abort), SI_ST_CLO (last error),
1814 * SI_ST_ASS/SI_ST_TAR/SI_ST_REQ for retryable errors.
1815 */
1816 }
1817
Willy Tarreau8f128b42014-11-28 15:07:47 +01001818 rq_prod_last = si_f->state;
1819 rq_cons_last = si_b->state;
1820 rp_cons_last = si_f->state;
1821 rp_prod_last = si_b->state;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001822
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001823 /* Check for connection closure */
Christopher Fauleteea8fc72019-11-05 16:18:10 +01001824 DBG_TRACE_POINT(STRM_EV_STRM_PROC, s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001825
1826 /* nothing special to be done on client side */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001827 if (unlikely(si_f->state == SI_ST_DIS))
1828 si_f->state = SI_ST_CLO;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001829
1830 /* When a server-side connection is released, we have to count it and
1831 * check for pending connections on this server.
1832 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001833 if (unlikely(si_b->state == SI_ST_DIS)) {
1834 si_b->state = SI_ST_CLO;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001835 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01001836 if (srv) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001837 if (s->flags & SF_CURR_SESS) {
1838 s->flags &= ~SF_CURR_SESS;
Willy Tarreau4781b152021-04-06 13:53:36 +02001839 _HA_ATOMIC_DEC(&srv->cur_sess);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001840 }
1841 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001842 if (may_dequeue_tasks(srv, s->be))
Amaury Denoyellecaaafd02021-06-18 11:11:36 +02001843 process_srv_queue(srv, 0);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001844 }
1845 }
1846
1847 /*
1848 * Note: of the transient states (REQ, CER, DIS), only REQ may remain
1849 * at this point.
1850 */
1851
Willy Tarreau0be0ef92009-03-08 19:20:25 +01001852 resync_request:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001853 /* Analyse request */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001854 if (((req->flags & ~rqf_last) & CF_MASK_ANALYSER) ||
1855 ((req->flags ^ rqf_last) & CF_MASK_STATIC) ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01001856 (req->analysers && (req->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01001857 si_f->state != rq_prod_last ||
1858 si_b->state != rq_cons_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001859 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001860 unsigned int flags = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001861
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001862 if (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001863 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001864 unsigned int ana_list;
1865 unsigned int ana_back;
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001866
Willy Tarreau90deb182010-01-07 00:20:41 +01001867 /* it's up to the analysers to stop new connections,
1868 * disable reading or closing. Note: if an analyser
1869 * disables any of these bits, it is responsible for
1870 * enabling them again when it disables itself, so
1871 * that other analysers are called in similar conditions.
1872 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001873 channel_auto_read(req);
1874 channel_auto_connect(req);
1875 channel_auto_close(req);
Willy Tarreauedcf6682008-11-30 23:15:34 +01001876
1877 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01001878 * req->analysers, following the bit order from LSB
Willy Tarreauedcf6682008-11-30 23:15:34 +01001879 * to MSB. The analysers must remove themselves from
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001880 * the list when not needed. Any analyser may return 0
1881 * to break out of the loop, either because of missing
1882 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02001883 * kill the stream. We loop at least once through each
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001884 * analyser, and we may loop again if other analysers
1885 * are added in the middle.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001886 *
1887 * We build a list of analysers to run. We evaluate all
1888 * of these analysers in the order of the lower bit to
1889 * the higher bit. This ordering is very important.
1890 * An analyser will often add/remove other analysers,
1891 * including itself. Any changes to itself have no effect
1892 * on the loop. If it removes any other analysers, we
1893 * want those analysers not to be called anymore during
1894 * this loop. If it adds an analyser that is located
1895 * after itself, we want it to be scheduled for being
1896 * processed during the loop. If it adds an analyser
1897 * which is located before it, we want it to switch to
1898 * it immediately, even if it has already been called
1899 * once but removed since.
1900 *
1901 * In order to achieve this, we compare the analyser
1902 * list after the call with a copy of it before the
1903 * call. The work list is fed with analyser bits that
1904 * appeared during the call. Then we compare previous
1905 * work list with the new one, and check the bits that
1906 * appeared. If the lowest of these bits is lower than
1907 * the current bit, it means we have enabled a previous
1908 * analyser and must immediately loop again.
Willy Tarreauedcf6682008-11-30 23:15:34 +01001909 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001910
Willy Tarreau8f128b42014-11-28 15:07:47 +01001911 ana_list = ana_back = req->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001912 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001913 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01001914 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_FE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001915 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_FE);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001916 FLT_ANALYZE(s, req, http_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_HTTP);
1917 FLT_ANALYZE(s, req, http_wait_for_request_body, ana_list, ana_back, AN_REQ_HTTP_BODY);
1918 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 +02001919 FLT_ANALYZE(s, req, process_switching_rules, ana_list, ana_back, AN_REQ_SWITCHING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001920 ANALYZE (s, req, flt_start_analyze, ana_list, ana_back, AN_REQ_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001921 FLT_ANALYZE(s, req, tcp_inspect_request, ana_list, ana_back, AN_REQ_INSPECT_BE);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001922 FLT_ANALYZE(s, req, http_process_req_common, ana_list, ana_back, AN_REQ_HTTP_PROCESS_BE, s->be);
1923 FLT_ANALYZE(s, req, http_process_tarpit, ana_list, ana_back, AN_REQ_HTTP_TARPIT);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001924 FLT_ANALYZE(s, req, process_server_rules, ana_list, ana_back, AN_REQ_SRV_RULES);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001925 FLT_ANALYZE(s, req, http_process_request, ana_list, ana_back, AN_REQ_HTTP_INNER);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001926 FLT_ANALYZE(s, req, tcp_persist_rdp_cookie, ana_list, ana_back, AN_REQ_PRST_RDP_COOKIE);
1927 FLT_ANALYZE(s, req, process_sticking_rules, ana_list, ana_back, AN_REQ_STICKING_RULES);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001928 ANALYZE (s, req, flt_analyze_http_headers, ana_list, ana_back, AN_REQ_FLT_HTTP_HDRS);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001929 ANALYZE (s, req, http_request_forward_body, ana_list, ana_back, AN_REQ_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02001930 ANALYZE (s, req, pcli_wait_for_request, ana_list, ana_back, AN_REQ_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01001931 ANALYZE (s, req, flt_xfer_data, ana_list, ana_back, AN_REQ_FLT_XFER_DATA);
1932 ANALYZE (s, req, flt_end_analyze, ana_list, ana_back, AN_REQ_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01001933 break;
1934 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001935 }
Willy Tarreau84455332009-03-15 22:34:05 +01001936
Willy Tarreau8f128b42014-11-28 15:07:47 +01001937 rq_prod_last = si_f->state;
1938 rq_cons_last = si_b->state;
1939 req->flags &= ~CF_WAKE_ONCE;
1940 rqf_last = req->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001941
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02001942 if ((req->flags ^ flags) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001943 goto resync_request;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001944 }
1945
Willy Tarreau576507f2010-01-07 00:09:04 +01001946 /* we'll monitor the request analysers while parsing the response,
1947 * because some response analysers may indirectly enable new request
1948 * analysers (eg: HTTP keep-alive).
1949 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001950 req_ana_back = req->analysers;
Willy Tarreau576507f2010-01-07 00:09:04 +01001951
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001952 resync_response:
1953 /* Analyse response */
1954
Willy Tarreau8f128b42014-11-28 15:07:47 +01001955 if (((res->flags & ~rpf_last) & CF_MASK_ANALYSER) ||
1956 (res->flags ^ rpf_last) & CF_MASK_STATIC ||
Willy Tarreau33982cb2017-11-20 15:37:13 +01001957 (res->analysers && (res->flags & CF_SHUTW)) ||
Willy Tarreau8f128b42014-11-28 15:07:47 +01001958 si_f->state != rp_cons_last ||
1959 si_b->state != rp_prod_last ||
Christopher Faulet9d810ca2016-12-08 22:33:52 +01001960 s->pending_events & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001961 unsigned int flags = res->flags;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001962
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02001963 if (si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001964 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001965 unsigned int ana_list;
1966 unsigned int ana_back;
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001967
Willy Tarreau90deb182010-01-07 00:20:41 +01001968 /* it's up to the analysers to stop disable reading or
1969 * closing. Note: if an analyser disables any of these
1970 * bits, it is responsible for enabling them again when
1971 * it disables itself, so that other analysers are called
1972 * in similar conditions.
1973 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001974 channel_auto_read(res);
1975 channel_auto_close(res);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001976
1977 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01001978 * res->analysers, following the bit order from LSB
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001979 * to MSB. The analysers must remove themselves from
1980 * the list when not needed. Any analyser may return 0
1981 * to break out of the loop, either because of missing
1982 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02001983 * kill the stream. We loop at least once through each
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001984 * analyser, and we may loop again if other analysers
1985 * are added in the middle.
1986 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001987
Willy Tarreau8f128b42014-11-28 15:07:47 +01001988 ana_list = ana_back = res->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001989 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001990 /* Warning! ensure that analysers are always placed in ascending order! */
Christopher Faulet0184ea72017-01-05 14:06:34 +01001991 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_FE);
1992 ANALYZE (s, res, flt_start_analyze, ana_list, ana_back, AN_RES_FLT_START_BE);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001993 FLT_ANALYZE(s, res, tcp_inspect_response, ana_list, ana_back, AN_RES_INSPECT);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001994 FLT_ANALYZE(s, res, http_wait_for_response, ana_list, ana_back, AN_RES_WAIT_HTTP);
Christopher Fauleta9215b72016-05-11 17:06:28 +02001995 FLT_ANALYZE(s, res, process_store_rules, ana_list, ana_back, AN_RES_STORE_RULES);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001996 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 +01001997 ANALYZE (s, res, flt_analyze_http_headers, ana_list, ana_back, AN_RES_FLT_HTTP_HDRS);
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02001998 ANALYZE (s, res, http_response_forward_body, ana_list, ana_back, AN_RES_HTTP_XFER_BODY);
William Lallemandcf62f7e2018-10-26 14:47:40 +02001999 ANALYZE (s, res, pcli_wait_for_response, ana_list, ana_back, AN_RES_WAIT_CLI);
Christopher Faulet0184ea72017-01-05 14:06:34 +01002000 ANALYZE (s, res, flt_xfer_data, ana_list, ana_back, AN_RES_FLT_XFER_DATA);
2001 ANALYZE (s, res, flt_end_analyze, ana_list, ana_back, AN_RES_FLT_END);
Willy Tarreaue34070e2010-01-08 00:32:27 +01002002 break;
2003 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002004 }
2005
Willy Tarreau8f128b42014-11-28 15:07:47 +01002006 rp_cons_last = si_f->state;
2007 rp_prod_last = si_b->state;
Christopher Fauletcdaea892017-07-06 15:49:30 +02002008 res->flags &= ~CF_WAKE_ONCE;
Willy Tarreau8f128b42014-11-28 15:07:47 +01002009 rpf_last = res->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02002010
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02002011 if ((res->flags ^ flags) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002012 goto resync_response;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002013 }
2014
Willy Tarreau576507f2010-01-07 00:09:04 +01002015 /* maybe someone has added some request analysers, so we must check and loop */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002016 if (req->analysers & ~req_ana_back)
Willy Tarreau576507f2010-01-07 00:09:04 +01002017 goto resync_request;
2018
Willy Tarreau8f128b42014-11-28 15:07:47 +01002019 if ((req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0499e352010-12-17 07:13:42 +01002020 goto resync_request;
2021
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002022 /* FIXME: here we should call protocol handlers which rely on
2023 * both buffers.
2024 */
2025
2026
2027 /*
Willy Tarreau87b09662015-04-03 00:22:06 +02002028 * Now we propagate unhandled errors to the stream. Normally
Willy Tarreauae526782010-03-04 20:34:23 +01002029 * we're just in a data phase here since it means we have not
2030 * seen any analyser who could set an error status.
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002031 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002032 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002033 if (unlikely(!(s->flags & SF_ERR_MASK))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002034 if (req->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002035 /* Report it if the client got an error or a read timeout expired */
Christopher Fauletc94f7272021-10-18 15:06:20 +02002036 req->analysers &= AN_REQ_FLT_END;
Willy Tarreau8f128b42014-11-28 15:07:47 +01002037 if (req->flags & CF_READ_ERROR) {
Willy Tarreau4781b152021-04-06 13:53:36 +02002038 _HA_ATOMIC_INC(&s->be->be_counters.cli_aborts);
2039 _HA_ATOMIC_INC(&sess->fe->fe_counters.cli_aborts);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01002040 if (sess->listener && sess->listener->counters)
Willy Tarreau4781b152021-04-06 13:53:36 +02002041 _HA_ATOMIC_INC(&sess->listener->counters->cli_aborts);
Willy Tarreau827aee92011-03-10 16:55:02 +01002042 if (srv)
Willy Tarreau4781b152021-04-06 13:53:36 +02002043 _HA_ATOMIC_INC(&srv->counters.cli_aborts);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002044 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002045 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002046 else if (req->flags & CF_READ_TIMEOUT) {
Willy Tarreau4781b152021-04-06 13:53:36 +02002047 _HA_ATOMIC_INC(&s->be->be_counters.cli_aborts);
2048 _HA_ATOMIC_INC(&sess->fe->fe_counters.cli_aborts);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01002049 if (sess->listener && sess->listener->counters)
Willy Tarreau4781b152021-04-06 13:53:36 +02002050 _HA_ATOMIC_INC(&sess->listener->counters->cli_aborts);
Willy Tarreau827aee92011-03-10 16:55:02 +01002051 if (srv)
Willy Tarreau4781b152021-04-06 13:53:36 +02002052 _HA_ATOMIC_INC(&srv->counters.cli_aborts);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002053 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01002054 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002055 else if (req->flags & CF_WRITE_ERROR) {
Willy Tarreau4781b152021-04-06 13:53:36 +02002056 _HA_ATOMIC_INC(&s->be->be_counters.srv_aborts);
2057 _HA_ATOMIC_INC(&sess->fe->fe_counters.srv_aborts);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01002058 if (sess->listener && sess->listener->counters)
Willy Tarreau4781b152021-04-06 13:53:36 +02002059 _HA_ATOMIC_INC(&sess->listener->counters->srv_aborts);
Willy Tarreau827aee92011-03-10 16:55:02 +01002060 if (srv)
Willy Tarreau4781b152021-04-06 13:53:36 +02002061 _HA_ATOMIC_INC(&srv->counters.srv_aborts);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002062 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002063 }
2064 else {
Willy Tarreau4781b152021-04-06 13:53:36 +02002065 _HA_ATOMIC_INC(&s->be->be_counters.srv_aborts);
2066 _HA_ATOMIC_INC(&sess->fe->fe_counters.srv_aborts);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01002067 if (sess->listener && sess->listener->counters)
Willy Tarreau4781b152021-04-06 13:53:36 +02002068 _HA_ATOMIC_INC(&sess->listener->counters->srv_aborts);
Willy Tarreau827aee92011-03-10 16:55:02 +01002069 if (srv)
Willy Tarreau4781b152021-04-06 13:53:36 +02002070 _HA_ATOMIC_INC(&srv->counters.srv_aborts);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002071 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002072 }
Willy Tarreau84455332009-03-15 22:34:05 +01002073 sess_set_term_flags(s);
Christopher Faulet5e1a9d72019-04-23 17:34:22 +02002074
2075 /* Abort the request if a client error occurred while
2076 * the backend stream-interface is in the SI_ST_INI
2077 * state. It is switched into the SI_ST_CLO state and
2078 * the request channel is erased. */
2079 if (si_b->state == SI_ST_INI) {
2080 si_b->state = SI_ST_CLO;
2081 channel_abort(req);
2082 if (IS_HTX_STRM(s))
2083 channel_htx_erase(req, htxbuf(&req->buf));
2084 else
2085 channel_erase(req);
2086 }
Willy Tarreau84455332009-03-15 22:34:05 +01002087 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002088 else if (res->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002089 /* Report it if the server got an error or a read timeout expired */
Christopher Fauletc94f7272021-10-18 15:06:20 +02002090 res->analysers &= AN_RES_FLT_END;
Willy Tarreau8f128b42014-11-28 15:07:47 +01002091 if (res->flags & CF_READ_ERROR) {
Willy Tarreau4781b152021-04-06 13:53:36 +02002092 _HA_ATOMIC_INC(&s->be->be_counters.srv_aborts);
2093 _HA_ATOMIC_INC(&sess->fe->fe_counters.srv_aborts);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01002094 if (sess->listener && sess->listener->counters)
Willy Tarreau4781b152021-04-06 13:53:36 +02002095 _HA_ATOMIC_INC(&sess->listener->counters->srv_aborts);
Willy Tarreau827aee92011-03-10 16:55:02 +01002096 if (srv)
Willy Tarreau4781b152021-04-06 13:53:36 +02002097 _HA_ATOMIC_INC(&srv->counters.srv_aborts);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002098 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002099 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002100 else if (res->flags & CF_READ_TIMEOUT) {
Willy Tarreau4781b152021-04-06 13:53:36 +02002101 _HA_ATOMIC_INC(&s->be->be_counters.srv_aborts);
2102 _HA_ATOMIC_INC(&sess->fe->fe_counters.srv_aborts);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01002103 if (sess->listener && sess->listener->counters)
Willy Tarreau4781b152021-04-06 13:53:36 +02002104 _HA_ATOMIC_INC(&sess->listener->counters->srv_aborts);
Willy Tarreau827aee92011-03-10 16:55:02 +01002105 if (srv)
Willy Tarreau4781b152021-04-06 13:53:36 +02002106 _HA_ATOMIC_INC(&srv->counters.srv_aborts);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002107 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002108 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01002109 else if (res->flags & CF_WRITE_ERROR) {
Willy Tarreau4781b152021-04-06 13:53:36 +02002110 _HA_ATOMIC_INC(&s->be->be_counters.cli_aborts);
2111 _HA_ATOMIC_INC(&sess->fe->fe_counters.cli_aborts);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01002112 if (sess->listener && sess->listener->counters)
Willy Tarreau4781b152021-04-06 13:53:36 +02002113 _HA_ATOMIC_INC(&sess->listener->counters->cli_aborts);
Willy Tarreau827aee92011-03-10 16:55:02 +01002114 if (srv)
Willy Tarreau4781b152021-04-06 13:53:36 +02002115 _HA_ATOMIC_INC(&srv->counters.cli_aborts);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002116 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002117 }
2118 else {
Willy Tarreau4781b152021-04-06 13:53:36 +02002119 _HA_ATOMIC_INC(&s->be->be_counters.cli_aborts);
2120 _HA_ATOMIC_INC(&sess->fe->fe_counters.cli_aborts);
Christopher Faulet99ac8a12020-01-24 11:45:05 +01002121 if (sess->listener && sess->listener->counters)
Willy Tarreau4781b152021-04-06 13:53:36 +02002122 _HA_ATOMIC_INC(&sess->listener->counters->cli_aborts);
Willy Tarreau827aee92011-03-10 16:55:02 +01002123 if (srv)
Willy Tarreau4781b152021-04-06 13:53:36 +02002124 _HA_ATOMIC_INC(&srv->counters.cli_aborts);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002125 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01002126 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002127 sess_set_term_flags(s);
2128 }
Willy Tarreau84455332009-03-15 22:34:05 +01002129 }
2130
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002131 /*
2132 * Here we take care of forwarding unhandled data. This also includes
2133 * connection establishments and shutdown requests.
2134 */
2135
2136
Ilya Shipitsinb8888ab2021-01-06 21:20:16 +05002137 /* If no one is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002138 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002139 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002140 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002141 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02002142 if (unlikely((!req->analysers || (req->analysers == AN_REQ_FLT_END && !(req->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002143 !(req->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002144 (si_state_in(si_f->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO)) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002145 (req->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002146 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002147 * attached to it. If any data are left in, we'll permit them to
2148 * move.
2149 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002150 channel_auto_read(req);
2151 channel_auto_connect(req);
2152 channel_auto_close(req);
Willy Tarreau5bd8c372009-01-19 00:32:22 +01002153
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002154 if (IS_HTX_STRM(s)) {
2155 struct htx *htx = htxbuf(&req->buf);
2156
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002157 /* We'll let data flow between the producer (if still connected)
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002158 * to the consumer.
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002159 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002160 co_set_data(req, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002161 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002162 channel_htx_forward_forever(req, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002163 }
2164 else {
2165 /* We'll let data flow between the producer (if still connected)
2166 * to the consumer (which might possibly not be connected yet).
2167 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002168 c_adv(req, ci_data(req));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002169 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2170 channel_forward_forever(req);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002171 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002172 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002173
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002174 /* check if it is wise to enable kernel splicing to forward request data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002175 if (!(req->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2176 req->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002177 (global.tune.options & GTUNE_USE_SPLICE) &&
Christopher Faulet276c1e02019-11-05 16:49:23 +01002178 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->rcv_pipe &&
2179 __objt_cs(si_f->end)->conn->mux && __objt_cs(si_f->end)->conn->mux->rcv_pipe) &&
2180 (objt_cs(si_b->end) && __objt_cs(si_b->end)->conn->xprt && __objt_cs(si_b->end)->conn->xprt->snd_pipe &&
2181 __objt_cs(si_b->end)->conn->mux && __objt_cs(si_b->end)->conn->mux->snd_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002182 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002183 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_REQ) ||
2184 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002185 (req->flags & CF_STREAMER_FAST)))) {
2186 req->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002187 }
2188
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002189 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002190 rqf_last = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002191
Willy Tarreau520d95e2009-09-19 21:04:57 +02002192 /* it's possible that an upper layer has requested a connection setup or abort.
2193 * There are 2 situations where we decide to establish a new connection :
2194 * - there are data scheduled for emission in the buffer
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002195 * - the CF_AUTO_CONNECT flag is set (active connection)
Willy Tarreau520d95e2009-09-19 21:04:57 +02002196 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002197 if (si_b->state == SI_ST_INI) {
Christopher Faulet5e1a9d72019-04-23 17:34:22 +02002198 if (!(req->flags & CF_SHUTW)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002199 if ((req->flags & CF_AUTO_CONNECT) || !channel_is_empty(req)) {
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002200 /* If we have an appctx, there is no connect method, so we
2201 * immediately switch to the connected state, otherwise we
2202 * perform a connection request.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002203 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002204 si_b->state = SI_ST_REQ; /* new connection requested */
2205 si_b->conn_retries = s->be->conn_retries;
Christopher Faulet5bf85852021-05-21 13:46:14 +02002206 if ((s->be->retry_type &~ PR_RE_CONN_FAILED) &&
2207 (s->be->mode == PR_MODE_HTTP) &&
2208 !(si_b->flags & SI_FL_D_L7_RETRY))
2209 si_b->flags |= SI_FL_L7_RETRY;
Willy Tarreau520d95e2009-09-19 21:04:57 +02002210 }
Willy Tarreau73201222009-08-16 18:27:24 +02002211 }
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002212 else {
Willy Tarreau0542c8b2017-11-24 15:01:10 +01002213 si_release_endpoint(si_b);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002214 si_b->state = SI_ST_CLO; /* shutw+ini = abort */
2215 channel_shutw_now(req); /* fix buffer flags upon abort */
2216 channel_shutr_now(res);
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002217 }
Willy Tarreau92795622009-03-06 12:51:23 +01002218 }
2219
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002220
2221 /* we may have a pending connection request, or a connection waiting
2222 * for completion.
2223 */
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002224 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 +02002225 /* prune the request variables and swap to the response variables. */
2226 if (s->vars_reqres.scope != SCOPE_RES) {
Jerome Magnin2f44e882019-11-09 18:00:47 +01002227 if (!LIST_ISEMPTY(&s->vars_reqres.head))
Willy Tarreaucda7f3f2018-10-28 13:44:36 +01002228 vars_prune(&s->vars_reqres, s->sess, s);
Jerome Magnin2f44e882019-11-09 18:00:47 +01002229 vars_init(&s->vars_reqres, SCOPE_RES);
Thierry FOURNIER4834bc72015-06-06 19:29:07 +02002230 }
2231
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002232 do {
2233 /* nb: step 1 might switch from QUE to ASS, but we first want
2234 * to give a chance to step 2 to perform a redirect if needed.
2235 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002236 if (si_b->state != SI_ST_REQ)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002237 back_try_conn_req(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002238 if (si_b->state == SI_ST_REQ)
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002239 back_handle_st_req(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002240
Willy Tarreauada4c582020-03-04 16:42:03 +01002241 /* get a chance to complete an immediate connection setup */
2242 if (si_b->state == SI_ST_RDY)
2243 goto resync_stream_interface;
2244
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +01002245 /* applets directly go to the ESTABLISHED state. Similarly,
2246 * servers experience the same fate when their connection
2247 * is reused.
2248 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002249 if (unlikely(si_b->state == SI_ST_EST))
Willy Tarreau3a9312a2020-01-09 18:43:15 +01002250 back_establish(s);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01002251
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002252 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002253 if (si_b->state == SI_ST_ASS && srv && srv->rdr_len && (s->flags & SF_REDIRECTABLE))
Christopher Fauletfc9cfe42019-07-16 14:54:53 +02002254 http_perform_server_redirect(s, si_b);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002255 } while (si_b->state == SI_ST_ASS);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002256 }
2257
Willy Tarreau829bd472019-06-06 09:17:23 +02002258 /* Let's see if we can send the pending request now */
2259 si_sync_send(si_b);
2260
2261 /*
2262 * Now forward all shutdown requests between both sides of the request buffer
2263 */
2264
2265 /* first, let's check if the request buffer needs to shutdown(write), which may
2266 * happen either because the input is closed or because we want to force a close
2267 * once the server has begun to respond. If a half-closed timeout is set, we adjust
Willy Tarreau9e68a352022-04-14 17:39:48 +02002268 * the other side's timeout as well. However this doesn't have effect during the
2269 * connection setup unless the backend has abortonclose set.
Willy Tarreau829bd472019-06-06 09:17:23 +02002270 */
2271 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau9e68a352022-04-14 17:39:48 +02002272 (CF_AUTO_CLOSE|CF_SHUTR) &&
2273 (si_b->state != SI_ST_CON || (s->be->options & PR_O_ABRT_CLOSE)))) {
Willy Tarreau829bd472019-06-06 09:17:23 +02002274 channel_shutw_now(req);
2275 }
2276
2277 /* shutdown(write) pending */
2278 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2279 channel_is_empty(req))) {
2280 if (req->flags & CF_READ_ERROR)
2281 si_b->flags |= SI_FL_NOLINGER;
2282 si_shutw(si_b);
2283 }
2284
2285 /* shutdown(write) done on server side, we must stop the client too */
2286 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW &&
2287 !req->analysers))
2288 channel_shutr_now(req);
2289
2290 /* shutdown(read) pending */
2291 if (unlikely((req->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2292 if (si_f->flags & SI_FL_NOHALF)
2293 si_f->flags |= SI_FL_NOLINGER;
2294 si_shutr(si_f);
2295 }
2296
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002297 /* Benchmarks have shown that it's optimal to do a full resync now */
Willy Tarreau829bd472019-06-06 09:17:23 +02002298 if (si_f->state == SI_ST_DIS ||
2299 si_state_in(si_b->state, SI_SB_RDY|SI_SB_DIS) ||
2300 (si_f->flags & SI_FL_ERR && si_f->state != SI_ST_CLO) ||
2301 (si_b->flags & SI_FL_ERR && si_b->state != SI_ST_CLO))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002302 goto resync_stream_interface;
2303
Willy Tarreau815a9b22010-07-27 17:15:12 +02002304 /* otherwise we want to check if we need to resync the req buffer or not */
Willy Tarreau1ec9bb52019-06-06 14:45:26 +02002305 if ((req->flags ^ rqf_last) & (CF_SHUTR|CF_SHUTW))
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002306 goto resync_request;
2307
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002308 /* perform output updates to the response buffer */
Willy Tarreau84455332009-03-15 22:34:05 +01002309
Ilya Shipitsinb8888ab2021-01-06 21:20:16 +05002310 /* If no one is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002311 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002312 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002313 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002314 */
Christopher Faulet35fe6992017-08-29 16:06:38 +02002315 if (unlikely((!res->analysers || (res->analysers == AN_RES_FLT_END && !(res->flags & CF_FLT_ANALYZE))) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002316 !(res->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau7ab22adb2019-06-05 14:53:22 +02002317 si_state_in(si_b->state, SI_SB_EST|SI_SB_DIS|SI_SB_CLO) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002318 (res->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002319 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002320 * attached to it. If any data are left in, we'll permit them to
2321 * move.
2322 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002323 channel_auto_read(res);
2324 channel_auto_close(res);
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002325
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002326 if (IS_HTX_STRM(s)) {
2327 struct htx *htx = htxbuf(&res->buf);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002328
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002329 /* We'll let data flow between the producer (if still connected)
2330 * to the consumer.
2331 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002332 co_set_data(res, htx->data);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002333 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002334 channel_htx_forward_forever(res, htx);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002335 }
2336 else {
2337 /* We'll let data flow between the producer (if still connected)
2338 * to the consumer.
2339 */
Christopher Faulet2dba1a52018-12-18 21:57:24 +01002340 c_adv(res, ci_data(res));
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002341 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2342 channel_forward_forever(res);
Christopher Fauletb2aedea2018-12-05 11:56:15 +01002343 }
Willy Tarreau42529c32015-07-09 18:38:57 +02002344
Willy Tarreauce887fd2012-05-12 12:50:00 +02002345 /* if we have no analyser anymore in any direction and have a
Willy Tarreau05cdd962014-05-10 14:30:07 +02002346 * tunnel timeout set, use it now. Note that we must respect
2347 * the half-closed timeouts as well.
Willy Tarreauce887fd2012-05-12 12:50:00 +02002348 */
Amaury Denoyellefb504432020-12-10 13:43:53 +01002349 if (!req->analysers && s->tunnel_timeout) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002350 req->rto = req->wto = res->rto = res->wto =
Amaury Denoyellefb504432020-12-10 13:43:53 +01002351 s->tunnel_timeout;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002352
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002353 if ((req->flags & CF_SHUTR) && tick_isset(sess->fe->timeout.clientfin))
2354 res->wto = sess->fe->timeout.clientfin;
Willy Tarreau8f128b42014-11-28 15:07:47 +01002355 if ((req->flags & CF_SHUTW) && tick_isset(s->be->timeout.serverfin))
2356 res->rto = s->be->timeout.serverfin;
2357 if ((res->flags & CF_SHUTR) && tick_isset(s->be->timeout.serverfin))
2358 req->wto = s->be->timeout.serverfin;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002359 if ((res->flags & CF_SHUTW) && tick_isset(sess->fe->timeout.clientfin))
2360 req->rto = sess->fe->timeout.clientfin;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002361
Willy Tarreau8f128b42014-11-28 15:07:47 +01002362 req->rex = tick_add(now_ms, req->rto);
2363 req->wex = tick_add(now_ms, req->wto);
2364 res->rex = tick_add(now_ms, res->rto);
2365 res->wex = tick_add(now_ms, res->wto);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002366 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002367 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002368
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002369 /* check if it is wise to enable kernel splicing to forward response data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002370 if (!(res->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2371 res->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002372 (global.tune.options & GTUNE_USE_SPLICE) &&
Christopher Faulet276c1e02019-11-05 16:49:23 +01002373 (objt_cs(si_f->end) && __objt_cs(si_f->end)->conn->xprt && __objt_cs(si_f->end)->conn->xprt->snd_pipe &&
2374 __objt_cs(si_f->end)->conn->mux && __objt_cs(si_f->end)->conn->mux->snd_pipe) &&
2375 (objt_cs(si_b->end) && __objt_cs(si_b->end)->conn->xprt && __objt_cs(si_b->end)->conn->xprt->rcv_pipe &&
2376 __objt_cs(si_b->end)->conn->mux && __objt_cs(si_b->end)->conn->mux->rcv_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002377 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002378 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_RTR) ||
2379 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002380 (res->flags & CF_STREAMER_FAST)))) {
2381 res->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002382 }
2383
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002384 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002385 rpf_last = res->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002386
Willy Tarreau829bd472019-06-06 09:17:23 +02002387 /* Let's see if we can send the pending response now */
2388 si_sync_send(si_f);
2389
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002390 /*
2391 * Now forward all shutdown requests between both sides of the buffer
2392 */
2393
2394 /*
2395 * FIXME: this is probably where we should produce error responses.
2396 */
2397
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002398 /* first, let's check if the response buffer needs to shutdown(write) */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002399 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau05cdd962014-05-10 14:30:07 +02002400 (CF_AUTO_CLOSE|CF_SHUTR))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002401 channel_shutw_now(res);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002402 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002403
2404 /* shutdown(write) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002405 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2406 channel_is_empty(res))) {
2407 si_shutw(si_f);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002408 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002409
2410 /* shutdown(write) done on the client side, we must stop the server too */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002411 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW) &&
2412 !res->analysers)
2413 channel_shutr_now(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002414
2415 /* shutdown(read) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002416 if (unlikely((res->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2417 if (si_b->flags & SI_FL_NOHALF)
2418 si_b->flags |= SI_FL_NOLINGER;
2419 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002420 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002421
Willy Tarreau829bd472019-06-06 09:17:23 +02002422 if (si_f->state == SI_ST_DIS ||
2423 si_state_in(si_b->state, SI_SB_RDY|SI_SB_DIS) ||
2424 (si_f->flags & SI_FL_ERR && si_f->state != SI_ST_CLO) ||
2425 (si_b->flags & SI_FL_ERR && si_b->state != SI_ST_CLO))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002426 goto resync_stream_interface;
2427
Willy Tarreau3c5c0662019-06-06 14:32:49 +02002428 if ((req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002429 goto resync_request;
2430
Willy Tarreau8f128b42014-11-28 15:07:47 +01002431 if ((res->flags ^ rpf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002432 goto resync_response;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002433
Willy Tarreau829bd472019-06-06 09:17:23 +02002434 if (((req->flags ^ rqf_last) | (res->flags ^ rpf_last)) & CF_MASK_ANALYSER)
2435 goto resync_request;
2436
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002437 /* we're interested in getting wakeups again */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002438 si_f->flags &= ~SI_FL_DONT_WAKE;
2439 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002440
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002441 /* This is needed only when debugging is enabled, to indicate
2442 * client-side or server-side close. Please note that in the unlikely
2443 * event where both sides would close at once, the sequence is reported
2444 * on the server side first.
2445 */
2446 if (unlikely((global.mode & MODE_DEBUG) &&
2447 (!(global.mode & MODE_QUIET) ||
2448 (global.mode & MODE_VERBOSE)))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002449 if (si_b->state == SI_ST_CLO &&
2450 si_b->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002451 chunk_printf(&trash, "%08x:%s.srvcls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002452 s->uniq_id, s->be->id,
Willy Tarreau66182592021-12-06 07:01:02 +00002453 objt_cs(si_f->end) ? (unsigned short)__objt_cs(si_f->end)->conn->handle.fd : -1,
2454 objt_cs(si_b->end) ? (unsigned short)__objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01002455 DISGUISE(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002456 }
2457
Willy Tarreau8f128b42014-11-28 15:07:47 +01002458 if (si_f->state == SI_ST_CLO &&
2459 si_f->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002460 chunk_printf(&trash, "%08x:%s.clicls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002461 s->uniq_id, s->be->id,
Willy Tarreau66182592021-12-06 07:01:02 +00002462 objt_cs(si_f->end) ? (unsigned short)__objt_cs(si_f->end)->conn->handle.fd : -1,
2463 objt_cs(si_b->end) ? (unsigned short)__objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01002464 DISGUISE(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002465 }
2466 }
2467
Christopher Faulet223f48e2019-11-13 11:12:32 +01002468 if (likely((si_f->state != SI_ST_CLO) || !si_state_in(si_b->state, SI_SB_INI|SI_SB_CLO) ||
2469 (req->analysers & AN_REQ_FLT_END) || (res->analysers & AN_RES_FLT_END))) {
Olivier Houchard4c18f942019-07-31 18:05:26 +02002470 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED) && !(s->flags & SF_IGNORE))
Willy Tarreau87b09662015-04-03 00:22:06 +02002471 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002472
Willy Tarreaud14844a2018-11-08 18:15:29 +01002473 si_update_both(si_f, si_b);
Olivier Houchard53216e72018-10-10 15:46:36 +02002474
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002475 /* Trick: if a request is being waiting for the server to respond,
2476 * and if we know the server can timeout, we don't want the timeout
2477 * to expire on the client side first, but we're still interested
2478 * in passing data from the client to the server (eg: POST). Thus,
2479 * we can cancel the client's request timeout if the server's
2480 * request timeout is set and the server has not yet sent a response.
2481 */
2482
Willy Tarreau8f128b42014-11-28 15:07:47 +01002483 if ((res->flags & (CF_AUTO_CLOSE|CF_SHUTR)) == 0 &&
2484 (tick_isset(req->wex) || tick_isset(res->rex))) {
2485 req->flags |= CF_READ_NOEXP;
2486 req->rex = TICK_ETERNITY;
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002487 }
2488
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002489 /* Reset pending events now */
2490 s->pending_events = 0;
2491
Willy Tarreau798f4322012-11-08 14:49:17 +01002492 update_exp_and_leave:
Willy Tarreau5fb04712016-05-04 10:18:37 +02002493 /* Note: please ensure that if you branch here you disable SI_FL_DONT_WAKE */
Christopher Fauleta00d8172016-11-10 14:58:05 +01002494 t->expire = tick_first((tick_is_expired(t->expire, now_ms) ? 0 : t->expire),
2495 tick_first(tick_first(req->rex, req->wex),
2496 tick_first(res->rex, res->wex)));
Willy Tarreaudef0d222016-11-08 22:03:00 +01002497 if (!req->analysers)
2498 req->analyse_exp = TICK_ETERNITY;
2499
2500 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED) &&
2501 (!tick_isset(req->analyse_exp) || tick_is_expired(req->analyse_exp, now_ms)))
2502 req->analyse_exp = tick_add(now_ms, 5000);
2503
2504 t->expire = tick_first(t->expire, req->analyse_exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002505
Willy Tarreau9a398be2017-11-10 17:14:23 +01002506 t->expire = tick_first(t->expire, res->analyse_exp);
2507
Willy Tarreau8f128b42014-11-28 15:07:47 +01002508 if (si_f->exp)
2509 t->expire = tick_first(t->expire, si_f->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002510
Willy Tarreau8f128b42014-11-28 15:07:47 +01002511 if (si_b->exp)
2512 t->expire = tick_first(t->expire, si_b->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002513
Christopher Faulet9d810ca2016-12-08 22:33:52 +01002514 s->pending_events &= ~(TASK_WOKEN_TIMER | TASK_WOKEN_RES);
Willy Tarreau87b09662015-04-03 00:22:06 +02002515 stream_release_buffers(s);
Christopher Fauleteea8fc72019-11-05 16:18:10 +01002516
2517 DBG_TRACE_DEVEL("queuing", STRM_EV_STRM_PROC, s);
Willy Tarreau26c25062009-03-08 09:38:41 +01002518 return t; /* nothing more to do */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002519 }
2520
Christopher Fauleteea8fc72019-11-05 16:18:10 +01002521 DBG_TRACE_DEVEL("releasing", STRM_EV_STRM_PROC, s);
2522
Willy Tarreaue7dff022015-04-03 01:14:29 +02002523 if (s->flags & SF_BE_ASSIGNED)
Willy Tarreau4781b152021-04-06 13:53:36 +02002524 _HA_ATOMIC_DEC(&s->be->beconn);
Willy Tarreau6f5e4b92017-09-15 09:07:56 +02002525
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002526 if (unlikely((global.mode & MODE_DEBUG) &&
2527 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)))) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002528 chunk_printf(&trash, "%08x:%s.closed[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002529 s->uniq_id, s->be->id,
Willy Tarreau66182592021-12-06 07:01:02 +00002530 objt_cs(si_f->end) ? (unsigned short)__objt_cs(si_f->end)->conn->handle.fd : -1,
2531 objt_cs(si_b->end) ? (unsigned short)__objt_cs(si_b->end)->conn->handle.fd : -1);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01002532 DISGUISE(write(1, trash.area, trash.data));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002533 }
2534
Christopher Faulet341064e2021-01-21 17:10:44 +01002535 if (!(s->flags & SF_IGNORE)) {
2536 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
2537
Olivier Houchard4c18f942019-07-31 18:05:26 +02002538 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002539
Christopher Faulet341064e2021-01-21 17:10:44 +01002540 if (s->txn && s->txn->status) {
2541 int n;
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002542
Christopher Faulet341064e2021-01-21 17:10:44 +01002543 n = s->txn->status / 100;
2544 if (n < 1 || n > 5)
2545 n = 0;
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002546
Christopher Faulet341064e2021-01-21 17:10:44 +01002547 if (sess->fe->mode == PR_MODE_HTTP) {
Willy Tarreau4781b152021-04-06 13:53:36 +02002548 _HA_ATOMIC_INC(&sess->fe->fe_counters.p.http.rsp[n]);
Christopher Faulet341064e2021-01-21 17:10:44 +01002549 }
2550 if ((s->flags & SF_BE_ASSIGNED) &&
2551 (s->be->mode == PR_MODE_HTTP)) {
Willy Tarreau4781b152021-04-06 13:53:36 +02002552 _HA_ATOMIC_INC(&s->be->be_counters.p.http.rsp[n]);
2553 _HA_ATOMIC_INC(&s->be->be_counters.p.http.cum_req);
Christopher Faulet341064e2021-01-21 17:10:44 +01002554 }
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002555 }
Christopher Faulet341064e2021-01-21 17:10:44 +01002556
2557 /* let's do a final log if we need it */
2558 if (!LIST_ISEMPTY(&sess->fe->logformat) && s->logs.logwait &&
2559 !(s->flags & SF_MONITOR) &&
2560 (!(sess->fe->options & PR_O_NULLNOLOG) || req->total)) {
2561 /* we may need to know the position in the queue */
2562 pendconn_free(s);
2563 s->do_log(s);
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002564 }
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002565
Christopher Faulet341064e2021-01-21 17:10:44 +01002566 /* update time stats for this stream */
2567 stream_update_time_stats(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002568 }
2569
2570 /* the task MUST not be in the run queue anymore */
Willy Tarreau87b09662015-04-03 00:22:06 +02002571 stream_free(s);
Olivier Houchard3f795f72019-04-17 22:51:06 +02002572 task_destroy(t);
Willy Tarreau26c25062009-03-08 09:38:41 +01002573 return NULL;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002574}
2575
Willy Tarreau87b09662015-04-03 00:22:06 +02002576/* Update the stream's backend and server time stats */
2577void stream_update_time_stats(struct stream *s)
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002578{
2579 int t_request;
2580 int t_queue;
2581 int t_connect;
2582 int t_data;
2583 int t_close;
2584 struct server *srv;
Marcin Deraneka8dbdf32020-05-15 20:02:40 +02002585 unsigned int samples_window;
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002586
2587 t_request = 0;
2588 t_queue = s->logs.t_queue;
2589 t_connect = s->logs.t_connect;
2590 t_close = s->logs.t_close;
2591 t_data = s->logs.t_data;
2592
2593 if (s->be->mode != PR_MODE_HTTP)
2594 t_data = t_connect;
2595
2596 if (t_connect < 0 || t_data < 0)
2597 return;
2598
2599 if (tv_isge(&s->logs.tv_request, &s->logs.tv_accept))
2600 t_request = tv_ms_elapsed(&s->logs.tv_accept, &s->logs.tv_request);
2601
2602 t_data -= t_connect;
2603 t_connect -= t_queue;
2604 t_queue -= t_request;
2605
2606 srv = objt_server(s->target);
2607 if (srv) {
Marcin Deraneka8dbdf32020-05-15 20:02:40 +02002608 samples_window = (((s->be->mode == PR_MODE_HTTP) ?
2609 srv->counters.p.http.cum_req : srv->counters.cum_lbconn) > TIME_STATS_SAMPLES) ? TIME_STATS_SAMPLES : 0;
2610 swrate_add_dynamic(&srv->counters.q_time, samples_window, t_queue);
2611 swrate_add_dynamic(&srv->counters.c_time, samples_window, t_connect);
2612 swrate_add_dynamic(&srv->counters.d_time, samples_window, t_data);
2613 swrate_add_dynamic(&srv->counters.t_time, samples_window, t_close);
Christopher Fauletefb41f02019-11-08 14:53:15 +01002614 HA_ATOMIC_UPDATE_MAX(&srv->counters.qtime_max, t_queue);
2615 HA_ATOMIC_UPDATE_MAX(&srv->counters.ctime_max, t_connect);
2616 HA_ATOMIC_UPDATE_MAX(&srv->counters.dtime_max, t_data);
2617 HA_ATOMIC_UPDATE_MAX(&srv->counters.ttime_max, t_close);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002618 }
Marcin Deraneka8dbdf32020-05-15 20:02:40 +02002619 samples_window = (((s->be->mode == PR_MODE_HTTP) ?
2620 s->be->be_counters.p.http.cum_req : s->be->be_counters.cum_lbconn) > TIME_STATS_SAMPLES) ? TIME_STATS_SAMPLES : 0;
2621 swrate_add_dynamic(&s->be->be_counters.q_time, samples_window, t_queue);
2622 swrate_add_dynamic(&s->be->be_counters.c_time, samples_window, t_connect);
2623 swrate_add_dynamic(&s->be->be_counters.d_time, samples_window, t_data);
2624 swrate_add_dynamic(&s->be->be_counters.t_time, samples_window, t_close);
Christopher Fauletefb41f02019-11-08 14:53:15 +01002625 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.qtime_max, t_queue);
2626 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.ctime_max, t_connect);
2627 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.dtime_max, t_data);
2628 HA_ATOMIC_UPDATE_MAX(&s->be->be_counters.ttime_max, t_close);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002629}
2630
Willy Tarreau7c669d72008-06-20 15:04:11 +02002631/*
2632 * This function adjusts sess->srv_conn and maintains the previous and new
Willy Tarreau87b09662015-04-03 00:22:06 +02002633 * server's served stream counts. Setting newsrv to NULL is enough to release
Willy Tarreau7c669d72008-06-20 15:04:11 +02002634 * current connection slot. This function also notifies any LB algo which might
Willy Tarreau87b09662015-04-03 00:22:06 +02002635 * expect to be informed about any change in the number of active streams on a
Willy Tarreau7c669d72008-06-20 15:04:11 +02002636 * server.
2637 */
Willy Tarreaue89fae32021-03-09 15:43:32 +01002638void sess_change_server(struct stream *strm, struct server *newsrv)
Willy Tarreau7c669d72008-06-20 15:04:11 +02002639{
Willy Tarreaue89fae32021-03-09 15:43:32 +01002640 struct server *oldsrv = strm->srv_conn;
Willy Tarreau751153e2021-02-17 13:33:24 +01002641
2642 if (oldsrv == newsrv)
Willy Tarreau7c669d72008-06-20 15:04:11 +02002643 return;
2644
Willy Tarreau751153e2021-02-17 13:33:24 +01002645 if (oldsrv) {
Willy Tarreau4781b152021-04-06 13:53:36 +02002646 _HA_ATOMIC_DEC(&oldsrv->served);
2647 _HA_ATOMIC_DEC(&oldsrv->proxy->served);
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002648 __ha_barrier_atomic_store();
Willy Tarreau59b0fec2021-02-17 16:01:37 +01002649 if (oldsrv->proxy->lbprm.server_drop_conn)
2650 oldsrv->proxy->lbprm.server_drop_conn(oldsrv, 0);
Willy Tarreaue89fae32021-03-09 15:43:32 +01002651 stream_del_srv_conn(strm);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002652 }
2653
2654 if (newsrv) {
Willy Tarreau4781b152021-04-06 13:53:36 +02002655 _HA_ATOMIC_INC(&newsrv->served);
2656 _HA_ATOMIC_INC(&newsrv->proxy->served);
Olivier Houcharddc6111e2019-03-08 18:54:51 +01002657 __ha_barrier_atomic_store();
Willy Tarreau59b0fec2021-02-17 16:01:37 +01002658 if (newsrv->proxy->lbprm.server_take_conn)
2659 newsrv->proxy->lbprm.server_take_conn(newsrv, 0);
Willy Tarreaue89fae32021-03-09 15:43:32 +01002660 stream_add_srv_conn(strm, newsrv);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002661 }
2662}
2663
Willy Tarreau84455332009-03-15 22:34:05 +01002664/* Handle server-side errors for default protocols. It is called whenever a a
2665 * connection setup is aborted or a request is aborted in queue. It sets the
Willy Tarreau87b09662015-04-03 00:22:06 +02002666 * stream termination flags so that the caller does not have to worry about
Willy Tarreau84455332009-03-15 22:34:05 +01002667 * them. It's installed as ->srv_error for the server-side stream_interface.
2668 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002669void default_srv_error(struct stream *s, struct stream_interface *si)
Willy Tarreau84455332009-03-15 22:34:05 +01002670{
2671 int err_type = si->err_type;
2672 int err = 0, fin = 0;
2673
2674 if (err_type & SI_ET_QUEUE_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002675 err = SF_ERR_CLICL;
2676 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002677 }
2678 else if (err_type & SI_ET_CONN_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002679 err = SF_ERR_CLICL;
2680 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002681 }
2682 else if (err_type & SI_ET_QUEUE_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002683 err = SF_ERR_SRVTO;
2684 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002685 }
2686 else if (err_type & SI_ET_QUEUE_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002687 err = SF_ERR_SRVCL;
2688 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002689 }
2690 else if (err_type & SI_ET_CONN_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002691 err = SF_ERR_SRVTO;
2692 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002693 }
2694 else if (err_type & SI_ET_CONN_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002695 err = SF_ERR_SRVCL;
2696 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002697 }
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002698 else if (err_type & SI_ET_CONN_RES) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002699 err = SF_ERR_RESOURCE;
2700 fin = SF_FINST_C;
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002701 }
Willy Tarreau84455332009-03-15 22:34:05 +01002702 else /* SI_ET_CONN_OTHER and others */ {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002703 err = SF_ERR_INTERNAL;
2704 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002705 }
2706
Willy Tarreaue7dff022015-04-03 01:14:29 +02002707 if (!(s->flags & SF_ERR_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002708 s->flags |= err;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002709 if (!(s->flags & SF_FINST_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002710 s->flags |= fin;
2711}
Willy Tarreau7c669d72008-06-20 15:04:11 +02002712
Willy Tarreaue7dff022015-04-03 01:14:29 +02002713/* kill a stream and set the termination flags to <why> (one of SF_ERR_*) */
Willy Tarreau87b09662015-04-03 00:22:06 +02002714void stream_shutdown(struct stream *stream, int why)
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002715{
Willy Tarreau87b09662015-04-03 00:22:06 +02002716 if (stream->req.flags & (CF_SHUTW|CF_SHUTW_NOW))
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002717 return;
2718
Willy Tarreau87b09662015-04-03 00:22:06 +02002719 channel_shutw_now(&stream->req);
2720 channel_shutr_now(&stream->res);
2721 stream->task->nice = 1024;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002722 if (!(stream->flags & SF_ERR_MASK))
Willy Tarreau87b09662015-04-03 00:22:06 +02002723 stream->flags |= why;
2724 task_wakeup(stream->task, TASK_WOKEN_OTHER);
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002725}
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02002726
Willy Tarreau5484d582019-05-22 09:33:03 +02002727/* Appends a dump of the state of stream <s> into buffer <buf> which must have
2728 * preliminary be prepared by its caller, with each line prepended by prefix
2729 * <pfx>, and each line terminated by character <eol>.
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002730 */
Willy Tarreau5484d582019-05-22 09:33:03 +02002731void stream_dump(struct buffer *buf, const struct stream *s, const char *pfx, char eol)
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002732{
2733 const struct conn_stream *csf, *csb;
2734 const struct connection *cof, *cob;
2735 const struct appctx *acf, *acb;
2736 const struct server *srv;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002737 const char *src = "unknown";
2738 const char *dst = "unknown";
2739 char pn[INET6_ADDRSTRLEN];
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002740 const struct channel *req, *res;
2741 const struct stream_interface *si_f, *si_b;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002742
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002743 if (!s) {
Willy Tarreau5484d582019-05-22 09:33:03 +02002744 chunk_appendf(buf, "%sstrm=%p%c", pfx, s, eol);
2745 return;
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002746 }
2747
Willy Tarreau5484d582019-05-22 09:33:03 +02002748 if (s->obj_type != OBJ_TYPE_STREAM) {
2749 chunk_appendf(buf, "%sstrm=%p [invalid type=%d(%s)]%c",
2750 pfx, s, s->obj_type, obj_type_name(&s->obj_type), eol);
2751 return;
2752 }
2753
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002754 si_f = &s->si[0];
2755 si_b = &s->si[1];
2756 req = &s->req;
2757 res = &s->res;
2758
2759 csf = objt_cs(si_f->end);
2760 cof = cs_conn(csf);
2761 acf = objt_appctx(si_f->end);
Willy Tarreau71e34c12019-07-17 15:07:06 +02002762 if (cof && cof->src && addr_to_str(cof->src, pn, sizeof(pn)) >= 0)
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002763 src = pn;
2764 else if (acf)
2765 src = acf->applet->name;
2766
2767 csb = objt_cs(si_b->end);
2768 cob = cs_conn(csb);
2769 acb = objt_appctx(si_b->end);
2770 srv = objt_server(s->target);
2771 if (srv)
2772 dst = srv->id;
2773 else if (acb)
2774 dst = acb->applet->name;
2775
Willy Tarreau5484d582019-05-22 09:33:03 +02002776 chunk_appendf(buf,
Christopher Fauletc86efe12021-11-02 17:18:15 +01002777 "%sstrm=%p,%x src=%s fe=%s be=%s dst=%s%c"
2778 "%stxn=%p,%x txn.req=%s,%x txn.rsp=%s,%x%c"
Willy Tarreau5484d582019-05-22 09:33:03 +02002779 "%srqf=%x rqa=%x rpf=%x rpa=%x sif=%s,%x sib=%s,%x%c"
2780 "%saf=%p,%u csf=%p,%x%c"
2781 "%sab=%p,%u csb=%p,%x%c"
2782 "%scof=%p,%x:%s(%p)/%s(%p)/%s(%d)%c"
2783 "%scob=%p,%x:%s(%p)/%s(%p)/%s(%d)%c"
2784 "",
Christopher Fauletc86efe12021-11-02 17:18:15 +01002785 pfx, s, s->flags, src, s->sess->fe->id, s->be->id, dst, eol,
2786 pfx, s->txn, (s->txn ? s->txn->flags : 0),
2787 (s->txn ? h1_msg_state_str(s->txn->req.msg_state): "-"), (s->txn ? s->txn->req.flags : 0),
2788 (s->txn ? h1_msg_state_str(s->txn->rsp.msg_state): "-"), (s->txn ? s->txn->rsp.flags : 0), eol,
Willy Tarreau5484d582019-05-22 09:33:03 +02002789 pfx, req->flags, req->analysers, res->flags, res->analysers,
2790 si_state_str(si_f->state), si_f->flags,
2791 si_state_str(si_b->state), si_b->flags, eol,
2792 pfx, acf, acf ? acf->st0 : 0, csf, csf ? csf->flags : 0, eol,
2793 pfx, acb, acb ? acb->st0 : 0, csb, csb ? csb->flags : 0, eol,
2794 pfx, cof, cof ? cof->flags : 0, conn_get_mux_name(cof), cof?cof->ctx:0, conn_get_xprt_name(cof),
2795 cof ? cof->xprt_ctx : 0, conn_get_ctrl_name(cof), cof ? cof->handle.fd : 0, eol,
2796 pfx, cob, cob ? cob->flags : 0, conn_get_mux_name(cob), cob?cob->ctx:0, conn_get_xprt_name(cob),
2797 cob ? cob->xprt_ctx : 0, conn_get_ctrl_name(cob), cob ? cob->handle.fd : 0, eol);
2798}
2799
2800/* dumps an error message for type <type> at ptr <ptr> related to stream <s>,
Willy Tarreaub106ce12019-05-22 08:57:01 +02002801 * having reached loop rate <rate>, then aborts hoping to retrieve a core.
Willy Tarreau5484d582019-05-22 09:33:03 +02002802 */
2803void stream_dump_and_crash(enum obj_type *obj, int rate)
2804{
2805 const struct stream *s;
Willy Tarreau5484d582019-05-22 09:33:03 +02002806 char *msg = NULL;
2807 const void *ptr;
2808
2809 ptr = s = objt_stream(obj);
2810 if (!s) {
2811 const struct appctx *appctx = objt_appctx(obj);
2812 if (!appctx)
2813 return;
2814 ptr = appctx;
2815 s = si_strm(appctx->owner);
2816 if (!s)
2817 return;
2818 }
2819
Willy Tarreau5484d582019-05-22 09:33:03 +02002820 chunk_reset(&trash);
2821 stream_dump(&trash, s, "", ' ');
Willy Tarreau9753d612020-05-01 16:57:02 +02002822
2823 chunk_appendf(&trash, "filters={");
2824 if (HAS_FILTERS(s)) {
2825 struct filter *filter;
2826
2827 list_for_each_entry(filter, &s->strm_flt.filters, list) {
2828 if (filter->list.p != &s->strm_flt.filters)
2829 chunk_appendf(&trash, ", ");
2830 chunk_appendf(&trash, "%p=\"%s\"", filter, FLT_ID(filter));
2831 }
2832 }
2833 chunk_appendf(&trash, "}");
2834
Willy Tarreaub106ce12019-05-22 08:57:01 +02002835 memprintf(&msg,
2836 "A bogus %s [%p] is spinning at %d calls per second and refuses to die, "
2837 "aborting now! Please report this error to developers "
2838 "[%s]\n",
Willy Tarreau5484d582019-05-22 09:33:03 +02002839 obj_type_name(obj), ptr, rate, trash.area);
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002840
2841 ha_alert("%s", msg);
2842 send_log(NULL, LOG_EMERG, "%s", msg);
Willy Tarreau2f67e542021-03-02 19:19:41 +01002843 ABORT_NOW();
Willy Tarreau71c07ac2019-04-25 19:08:48 +02002844}
2845
Willy Tarreaua698eb62021-02-24 10:37:01 +01002846/* initialize the require structures */
2847static void init_stream()
2848{
2849 int thr;
2850
2851 for (thr = 0; thr < MAX_THREADS; thr++)
2852 LIST_INIT(&ha_thread_info[thr].streams);
2853}
2854INITCALL0(STG_INIT, init_stream);
2855
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002856/* Generates a unique ID based on the given <format>, stores it in the given <strm> and
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002857 * returns the unique ID.
2858
2859 * If this function fails to allocate memory IST_NULL is returned.
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002860 *
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002861 * If an ID is already stored within the stream nothing happens existing unique ID is
2862 * returned.
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002863 */
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002864struct ist stream_generate_unique_id(struct stream *strm, struct list *format)
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002865{
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002866 if (isttest(strm->unique_id)) {
2867 return strm->unique_id;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002868 }
2869 else {
2870 char *unique_id;
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002871 int length;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002872 if ((unique_id = pool_alloc(pool_head_uniqueid)) == NULL)
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002873 return IST_NULL;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002874
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002875 length = build_logline(strm, unique_id, UNIQUEID_LEN, format);
2876 strm->unique_id = ist2(unique_id, length);
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002877
Tim Duesterhusa17e6622020-03-05 20:19:02 +01002878 return strm->unique_id;
Tim Duesterhus127a74d2020-02-28 15:13:33 +01002879 }
2880}
2881
Willy Tarreau8b22a712010-06-18 17:46:06 +02002882/************************************************************************/
2883/* All supported ACL keywords must be declared here. */
2884/************************************************************************/
Christopher Fauletae863c62021-03-15 12:03:44 +01002885static enum act_return tcp_action_switch_stream_mode(struct act_rule *rule, struct proxy *px,
2886 struct session *sess, struct stream *s, int flags)
2887{
2888 enum pr_mode mode = (uintptr_t)rule->arg.act.p[0];
2889 const struct mux_proto_list *mux_proto = rule->arg.act.p[1];
2890
2891 if (!IS_HTX_STRM(s) && mode == PR_MODE_HTTP) {
2892 if (!stream_set_http_mode(s, mux_proto)) {
2893 channel_abort(&s->req);
2894 channel_abort(&s->res);
2895 return ACT_RET_ABRT;
2896 }
2897 }
2898 return ACT_RET_STOP;
2899}
2900
2901
2902static int check_tcp_switch_stream_mode(struct act_rule *rule, struct proxy *px, char **err)
2903{
2904 const struct mux_proto_list *mux_ent;
2905 const struct mux_proto_list *mux_proto = rule->arg.act.p[1];
2906 enum pr_mode pr_mode = (uintptr_t)rule->arg.act.p[0];
2907 enum proto_proxy_mode mode = (1 << (pr_mode == PR_MODE_HTTP));
2908
Christopher Faulet3b6446f2021-03-15 15:10:38 +01002909 if (pr_mode == PR_MODE_HTTP)
2910 px->options |= PR_O_HTTP_UPG;
2911
Christopher Fauletae863c62021-03-15 12:03:44 +01002912 if (mux_proto) {
2913 mux_ent = conn_get_best_mux_entry(mux_proto->token, PROTO_SIDE_FE, mode);
2914 if (!mux_ent || !isteq(mux_ent->token, mux_proto->token)) {
2915 memprintf(err, "MUX protocol '%.*s' is not compatible with the selected mode",
2916 (int)mux_proto->token.len, mux_proto->token.ptr);
2917 return 0;
2918 }
2919 }
2920 else {
2921 mux_ent = conn_get_best_mux_entry(IST_NULL, PROTO_SIDE_FE, mode);
2922 if (!mux_ent) {
2923 memprintf(err, "Unable to find compatible MUX protocol with the selected mode");
2924 return 0;
2925 }
2926 }
2927
2928 /* Update the mux */
2929 rule->arg.act.p[1] = (void *)mux_ent;
2930 return 1;
2931
2932}
2933
2934static enum act_parse_ret stream_parse_switch_mode(const char **args, int *cur_arg,
2935 struct proxy *px, struct act_rule *rule,
2936 char **err)
2937{
2938 const struct mux_proto_list *mux_proto = NULL;
2939 struct ist proto;
2940 enum pr_mode mode;
2941
2942 /* must have at least the mode */
2943 if (*(args[*cur_arg]) == 0) {
2944 memprintf(err, "'%s %s' expects a mode as argument.", args[0], args[*cur_arg-1]);
2945 return ACT_RET_PRS_ERR;
2946 }
2947
2948 if (!(px->cap & PR_CAP_FE)) {
2949 memprintf(err, "'%s %s' not allowed because %s '%s' has no frontend capability",
2950 args[0], args[*cur_arg-1], proxy_type_str(px), px->id);
2951 return ACT_RET_PRS_ERR;
2952 }
2953 /* Check if the mode. For now "tcp" is disabled because downgrade is not
2954 * supported and PT is the only TCP mux.
2955 */
2956 if (strcmp(args[*cur_arg], "http") == 0)
2957 mode = PR_MODE_HTTP;
2958 else {
2959 memprintf(err, "'%s %s' expects a valid mode (got '%s').", args[0], args[*cur_arg-1], args[*cur_arg]);
2960 return ACT_RET_PRS_ERR;
2961 }
2962
2963 /* check the proto, if specified */
2964 if (*(args[*cur_arg+1]) && strcmp(args[*cur_arg+1], "proto") == 0) {
2965 if (*(args[*cur_arg+2]) == 0) {
2966 memprintf(err, "'%s %s': '%s' expects a protocol as argument.",
2967 args[0], args[*cur_arg-1], args[*cur_arg+1]);
2968 return ACT_RET_PRS_ERR;
2969 }
2970
2971 proto = ist2(args[*cur_arg+2], strlen(args[*cur_arg+2]));
2972 mux_proto = get_mux_proto(proto);
2973 if (!mux_proto) {
2974 memprintf(err, "'%s %s': '%s' expects a valid MUX protocol, if specified (got '%s')",
2975 args[0], args[*cur_arg-1], args[*cur_arg+1], args[*cur_arg+2]);
2976 return ACT_RET_PRS_ERR;
2977 }
2978 *cur_arg += 2;
2979 }
2980
2981 (*cur_arg)++;
2982
2983 /* Register processing function. */
2984 rule->action_ptr = tcp_action_switch_stream_mode;
2985 rule->check_ptr = check_tcp_switch_stream_mode;
2986 rule->action = ACT_CUSTOM;
2987 rule->arg.act.p[0] = (void *)(uintptr_t)mode;
2988 rule->arg.act.p[1] = (void *)mux_proto;
2989 return ACT_RET_PRS_OK;
2990}
Willy Tarreau8b22a712010-06-18 17:46:06 +02002991
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02002992/* 0=OK, <0=Alert, >0=Warning */
2993static enum act_parse_ret stream_parse_use_service(const char **args, int *cur_arg,
2994 struct proxy *px, struct act_rule *rule,
2995 char **err)
2996{
2997 struct action_kw *kw;
2998
2999 /* Check if the service name exists. */
3000 if (*(args[*cur_arg]) == 0) {
3001 memprintf(err, "'%s' expects a service name.", args[0]);
Thierry FOURNIER337eae12015-11-26 19:48:04 +01003002 return ACT_RET_PRS_ERR;
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003003 }
3004
3005 /* lookup for keyword corresponding to a service. */
3006 kw = action_lookup(&service_keywords, args[*cur_arg]);
3007 if (!kw) {
3008 memprintf(err, "'%s' unknown service name.", args[1]);
3009 return ACT_RET_PRS_ERR;
3010 }
3011 (*cur_arg)++;
3012
3013 /* executes specific rule parser. */
3014 rule->kw = kw;
3015 if (kw->parse((const char **)args, cur_arg, px, rule, err) == ACT_RET_PRS_ERR)
3016 return ACT_RET_PRS_ERR;
3017
3018 /* Register processing function. */
3019 rule->action_ptr = process_use_service;
3020 rule->action = ACT_CUSTOM;
3021
3022 return ACT_RET_PRS_OK;
3023}
3024
3025void service_keywords_register(struct action_kw_list *kw_list)
3026{
Willy Tarreau2b718102021-04-21 07:32:39 +02003027 LIST_APPEND(&service_keywords, &kw_list->list);
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003028}
3029
Thierry Fournier87e53992020-11-28 19:32:14 +01003030struct action_kw *service_find(const char *kw)
3031{
3032 return action_lookup(&service_keywords, kw);
3033}
3034
Willy Tarreau679bba12019-03-19 08:08:10 +01003035/* Lists the known services on <out> */
3036void list_services(FILE *out)
3037{
3038 struct action_kw_list *kw_list;
3039 int found = 0;
3040 int i;
3041
3042 fprintf(out, "Available services :");
3043 list_for_each_entry(kw_list, &service_keywords, list) {
3044 for (i = 0; kw_list->kw[i].kw != NULL; i++) {
Willy Tarreau679bba12019-03-19 08:08:10 +01003045 found = 1;
William Dauchyaabde712021-01-09 17:26:20 +01003046 fprintf(out, " %s", kw_list->kw[i].kw);
Willy Tarreau679bba12019-03-19 08:08:10 +01003047 }
3048 }
3049 if (!found)
3050 fprintf(out, " none\n");
3051}
William Lallemand4c5b4d52016-11-21 08:51:11 +01003052
3053/* This function dumps a complete stream state onto the stream interface's
3054 * read buffer. The stream has to be set in strm. It returns 0 if the output
3055 * buffer is full and it needs to be called again, otherwise non-zero. It is
3056 * designed to be called from stats_dump_strm_to_buffer() below.
3057 */
3058static int stats_dump_full_strm_to_buffer(struct stream_interface *si, struct stream *strm)
3059{
3060 struct appctx *appctx = __objt_appctx(si->end);
3061 struct tm tm;
3062 extern const char *monthname[12];
3063 char pn[INET6_ADDRSTRLEN];
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003064 struct conn_stream *cs;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003065 struct connection *conn;
3066 struct appctx *tmpctx;
3067
3068 chunk_reset(&trash);
3069
3070 if (appctx->ctx.sess.section > 0 && appctx->ctx.sess.uid != strm->uniq_id) {
3071 /* stream changed, no need to go any further */
3072 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
Willy Tarreaue6e52362019-01-04 17:42:57 +01003073 if (ci_putchk(si_ic(si), &trash) == -1)
3074 goto full;
3075 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003076 }
3077
3078 switch (appctx->ctx.sess.section) {
3079 case 0: /* main status of the stream */
3080 appctx->ctx.sess.uid = strm->uniq_id;
3081 appctx->ctx.sess.section = 1;
3082 /* fall through */
3083
3084 case 1:
3085 get_localtime(strm->logs.accept_date.tv_sec, &tm);
3086 chunk_appendf(&trash,
3087 "%p: [%02d/%s/%04d:%02d:%02d:%02d.%06d] id=%u proto=%s",
3088 strm,
3089 tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900,
3090 tm.tm_hour, tm.tm_min, tm.tm_sec, (int)(strm->logs.accept_date.tv_usec),
3091 strm->uniq_id,
Willy Tarreaub7436612020-08-28 19:51:44 +02003092 strm_li(strm) ? strm_li(strm)->rx.proto->name : "?");
William Lallemand4c5b4d52016-11-21 08:51:11 +01003093
3094 conn = objt_conn(strm_orig(strm));
Willy Tarreau71e34c12019-07-17 15:07:06 +02003095 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003096 case AF_INET:
3097 case AF_INET6:
3098 chunk_appendf(&trash, " source=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02003099 pn, get_host_port(conn->src));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003100 break;
3101 case AF_UNIX:
3102 chunk_appendf(&trash, " source=unix:%d\n", strm_li(strm)->luid);
3103 break;
3104 default:
3105 /* no more information to print right now */
3106 chunk_appendf(&trash, "\n");
3107 break;
3108 }
3109
3110 chunk_appendf(&trash,
Willy Tarreaub9813182021-02-24 11:29:51 +01003111 " flags=0x%x, conn_retries=%d, srv_conn=%p, pend_pos=%p waiting=%d epoch=%#x\n",
Willy Tarreauadf7a152019-01-07 10:10:07 +01003112 strm->flags, strm->si[1].conn_retries, strm->srv_conn, strm->pend_pos,
Willy Tarreau2b718102021-04-21 07:32:39 +02003113 LIST_INLIST(&strm->buffer_wait.list), strm->stream_epoch);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003114
3115 chunk_appendf(&trash,
3116 " frontend=%s (id=%u mode=%s), listener=%s (id=%u)",
William Lallemandf3894452022-03-08 12:05:31 +01003117 strm_fe(strm)->id, strm_fe(strm)->uuid, proxy_mode_str(strm_fe(strm)->mode),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003118 strm_li(strm) ? strm_li(strm)->name ? strm_li(strm)->name : "?" : "?",
3119 strm_li(strm) ? strm_li(strm)->luid : 0);
3120
Willy Tarreau71e34c12019-07-17 15:07:06 +02003121 switch (conn && conn_get_dst(conn) ? addr_to_str(conn->dst, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003122 case AF_INET:
3123 case AF_INET6:
3124 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02003125 pn, get_host_port(conn->dst));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003126 break;
3127 case AF_UNIX:
3128 chunk_appendf(&trash, " addr=unix:%d\n", strm_li(strm)->luid);
3129 break;
3130 default:
3131 /* no more information to print right now */
3132 chunk_appendf(&trash, "\n");
3133 break;
3134 }
3135
3136 if (strm->be->cap & PR_CAP_BE)
3137 chunk_appendf(&trash,
3138 " backend=%s (id=%u mode=%s)",
3139 strm->be->id,
William Lallemandf3894452022-03-08 12:05:31 +01003140 strm->be->uuid, proxy_mode_str(strm->be->mode));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003141 else
3142 chunk_appendf(&trash, " backend=<NONE> (id=-1 mode=-)");
3143
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003144 cs = objt_cs(strm->si[1].end);
3145 conn = cs_conn(cs);
3146
Willy Tarreau71e34c12019-07-17 15:07:06 +02003147 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003148 case AF_INET:
3149 case AF_INET6:
3150 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02003151 pn, get_host_port(conn->src));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003152 break;
3153 case AF_UNIX:
3154 chunk_appendf(&trash, " addr=unix\n");
3155 break;
3156 default:
3157 /* no more information to print right now */
3158 chunk_appendf(&trash, "\n");
3159 break;
3160 }
3161
3162 if (strm->be->cap & PR_CAP_BE)
3163 chunk_appendf(&trash,
3164 " server=%s (id=%u)",
Willy Tarreau66182592021-12-06 07:01:02 +00003165 objt_server(strm->target) ? __objt_server(strm->target)->id : "<none>",
3166 objt_server(strm->target) ? __objt_server(strm->target)->puid : 0);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003167 else
3168 chunk_appendf(&trash, " server=<NONE> (id=-1)");
3169
Willy Tarreau71e34c12019-07-17 15:07:06 +02003170 switch (conn && conn_get_dst(conn) ? addr_to_str(conn->dst, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003171 case AF_INET:
3172 case AF_INET6:
3173 chunk_appendf(&trash, " addr=%s:%d\n",
Willy Tarreau71e34c12019-07-17 15:07:06 +02003174 pn, get_host_port(conn->dst));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003175 break;
3176 case AF_UNIX:
3177 chunk_appendf(&trash, " addr=unix\n");
3178 break;
3179 default:
3180 /* no more information to print right now */
3181 chunk_appendf(&trash, "\n");
3182 break;
3183 }
3184
3185 chunk_appendf(&trash,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003186 " task=%p (state=0x%02x nice=%d calls=%u rate=%u exp=%s tmask=0x%lx%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003187 strm->task,
3188 strm->task->state,
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003189 strm->task->nice, strm->task->calls, read_freq_ctr(&strm->call_rate),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003190 strm->task->expire ?
3191 tick_is_expired(strm->task->expire, now_ms) ? "<PAST>" :
3192 human_time(TICKS_TO_MS(strm->task->expire - now_ms),
3193 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Fauletf0205062017-11-15 20:56:43 +01003194 strm->task->thread_mask,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003195 task_in_rq(strm->task) ? ", running" : "");
3196
3197 chunk_appendf(&trash,
3198 " age=%s)\n",
3199 human_time(now.tv_sec - strm->logs.accept_date.tv_sec, 1));
3200
3201 if (strm->txn)
3202 chunk_appendf(&trash,
Christopher Fauletbcac7862019-07-17 10:46:50 +02003203 " 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 +01003204 strm->txn, strm->txn->flags, strm->txn->meth, strm->txn->status,
Willy Tarreau7778b592019-01-07 10:38:10 +01003205 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 +02003206 strm->txn->req.flags, strm->txn->rsp.flags);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003207
3208 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01003209 " 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 +01003210 &strm->si[0],
3211 si_state_str(strm->si[0].state),
3212 strm->si[0].flags,
3213 obj_type_name(strm->si[0].end),
3214 obj_base_ptr(strm->si[0].end),
3215 strm->si[0].exp ?
3216 tick_is_expired(strm->si[0].exp, now_ms) ? "<PAST>" :
3217 human_time(TICKS_TO_MS(strm->si[0].exp - now_ms),
3218 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01003219 strm->si[0].err_type, strm->si[0].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003220
3221 chunk_appendf(&trash,
Christopher Faulet224a2d72019-01-04 15:06:13 +01003222 " 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 +01003223 &strm->si[1],
3224 si_state_str(strm->si[1].state),
3225 strm->si[1].flags,
3226 obj_type_name(strm->si[1].end),
3227 obj_base_ptr(strm->si[1].end),
3228 strm->si[1].exp ?
3229 tick_is_expired(strm->si[1].exp, now_ms) ? "<PAST>" :
3230 human_time(TICKS_TO_MS(strm->si[1].exp - now_ms),
3231 TICKS_TO_MS(1000)) : "<NEVER>",
Christopher Faulet224a2d72019-01-04 15:06:13 +01003232 strm->si[1].err_type, strm->si[1].wait_event.events);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003233
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003234 if ((cs = objt_cs(strm->si[0].end)) != NULL) {
3235 conn = cs->conn;
3236
William Lallemand4c5b4d52016-11-21 08:51:11 +01003237 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02003238 " co0=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003239 conn,
3240 conn_get_ctrl_name(conn),
3241 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02003242 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003243 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003244 obj_type_name(conn->target),
3245 obj_base_ptr(conn->target));
3246
3247 chunk_appendf(&trash,
Willy Tarreau76913d32019-08-30 14:33:11 +02003248 " flags=0x%08x fd=%d fd.state=%02x updt=%d fd.tmask=0x%lx\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003249 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003250 conn->handle.fd,
3251 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01003252 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01003253 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01003254
3255 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003256 }
3257 else if ((tmpctx = objt_appctx(strm->si[0].end)) != NULL) {
3258 chunk_appendf(&trash,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003259 " 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 +01003260 tmpctx,
3261 tmpctx->st0,
3262 tmpctx->st1,
3263 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01003264 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02003265 tmpctx->thread_mask,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003266 tmpctx->t->nice, tmpctx->t->calls, read_freq_ctr(&tmpctx->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003267 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003268 }
3269
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003270 if ((cs = objt_cs(strm->si[1].end)) != NULL) {
3271 conn = cs->conn;
3272
William Lallemand4c5b4d52016-11-21 08:51:11 +01003273 chunk_appendf(&trash,
Willy Tarreau53a47662017-08-28 10:53:00 +02003274 " co1=%p ctrl=%s xprt=%s mux=%s data=%s target=%s:%p\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003275 conn,
3276 conn_get_ctrl_name(conn),
3277 conn_get_xprt_name(conn),
Willy Tarreau53a47662017-08-28 10:53:00 +02003278 conn_get_mux_name(conn),
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003279 cs_get_data_name(cs),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003280 obj_type_name(conn->target),
3281 obj_base_ptr(conn->target));
3282
3283 chunk_appendf(&trash,
Willy Tarreau76913d32019-08-30 14:33:11 +02003284 " flags=0x%08x fd=%d fd.state=%02x updt=%d fd.tmask=0x%lx\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003285 conn->flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003286 conn->handle.fd,
3287 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].state : 0,
Willy Tarreauebc78d72018-01-20 23:53:50 +01003288 conn->handle.fd >= 0 ? !!(fdtab[conn->handle.fd].update_mask & tid_bit) : 0,
Christopher Fauletf0205062017-11-15 20:56:43 +01003289 conn->handle.fd >= 0 ? fdtab[conn->handle.fd].thread_mask: 0);
Willy Tarreaufb3b1b02018-12-18 14:28:24 +01003290
3291 chunk_appendf(&trash, " cs=%p csf=0x%08x ctx=%p\n", cs, cs->flags, cs->ctx);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003292 }
3293 else if ((tmpctx = objt_appctx(strm->si[1].end)) != NULL) {
3294 chunk_appendf(&trash,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003295 " 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 +01003296 tmpctx,
3297 tmpctx->st0,
3298 tmpctx->st1,
3299 tmpctx->st2,
Christopher Fauletf0205062017-11-15 20:56:43 +01003300 tmpctx->applet->name,
Willy Tarreau34b1fac2018-05-31 14:40:19 +02003301 tmpctx->thread_mask,
Willy Tarreau22d63a22019-04-24 08:41:29 +02003302 tmpctx->t->nice, tmpctx->t->calls, read_freq_ctr(&tmpctx->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003303 (unsigned long long)tmpctx->t->cpu_time, (unsigned long long)tmpctx->t->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003304 }
3305
3306 chunk_appendf(&trash,
3307 " req=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
3308 " an_exp=%s",
3309 &strm->req,
3310 strm->req.flags, strm->req.analysers,
3311 strm->req.pipe ? strm->req.pipe->data : 0,
3312 strm->req.to_forward, strm->req.total,
3313 strm->req.analyse_exp ?
3314 human_time(TICKS_TO_MS(strm->req.analyse_exp - now_ms),
3315 TICKS_TO_MS(1000)) : "<NEVER>");
3316
3317 chunk_appendf(&trash,
3318 " rex=%s",
3319 strm->req.rex ?
3320 human_time(TICKS_TO_MS(strm->req.rex - now_ms),
3321 TICKS_TO_MS(1000)) : "<NEVER>");
3322
3323 chunk_appendf(&trash,
3324 " wex=%s\n"
Christopher Fauletbcac7862019-07-17 10:46:50 +02003325 " buf=%p data=%p o=%u p=%u i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003326 strm->req.wex ?
3327 human_time(TICKS_TO_MS(strm->req.wex - now_ms),
3328 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003329 &strm->req.buf,
3330 b_orig(&strm->req.buf), (unsigned int)co_data(&strm->req),
Christopher Fauletbcac7862019-07-17 10:46:50 +02003331 (unsigned int)ci_head_ofs(&strm->req), (unsigned int)ci_data(&strm->req),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003332 (unsigned int)strm->req.buf.size);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003333
Christopher Fauletb9af8812019-01-04 14:30:44 +01003334 if (IS_HTX_STRM(strm)) {
3335 struct htx *htx = htxbuf(&strm->req.buf);
3336
3337 chunk_appendf(&trash,
Willy Tarreaub84e67f2019-01-07 10:01:34 +01003338 " htx=%p flags=0x%x size=%u data=%u used=%u wrap=%s extra=%llu\n",
Christopher Faulet192c6a22019-06-11 16:32:24 +02003339 htx, htx->flags, htx->size, htx->data, htx_nbblks(htx),
Christopher Faulet28f29c72019-04-30 17:55:45 +02003340 (htx->tail >= htx->head) ? "NO" : "YES",
Christopher Fauletb9af8812019-01-04 14:30:44 +01003341 (unsigned long long)htx->extra);
3342 }
3343
William Lallemand4c5b4d52016-11-21 08:51:11 +01003344 chunk_appendf(&trash,
3345 " res=%p (f=0x%06x an=0x%x pipe=%d tofwd=%d total=%lld)\n"
3346 " an_exp=%s",
3347 &strm->res,
3348 strm->res.flags, strm->res.analysers,
3349 strm->res.pipe ? strm->res.pipe->data : 0,
3350 strm->res.to_forward, strm->res.total,
3351 strm->res.analyse_exp ?
3352 human_time(TICKS_TO_MS(strm->res.analyse_exp - now_ms),
3353 TICKS_TO_MS(1000)) : "<NEVER>");
3354
3355 chunk_appendf(&trash,
3356 " rex=%s",
3357 strm->res.rex ?
3358 human_time(TICKS_TO_MS(strm->res.rex - now_ms),
3359 TICKS_TO_MS(1000)) : "<NEVER>");
3360
3361 chunk_appendf(&trash,
3362 " wex=%s\n"
Christopher Fauletbcac7862019-07-17 10:46:50 +02003363 " buf=%p data=%p o=%u p=%u i=%u size=%u\n",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003364 strm->res.wex ?
3365 human_time(TICKS_TO_MS(strm->res.wex - now_ms),
3366 TICKS_TO_MS(1000)) : "<NEVER>",
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003367 &strm->res.buf,
3368 b_orig(&strm->res.buf), (unsigned int)co_data(&strm->res),
Christopher Fauletbcac7862019-07-17 10:46:50 +02003369 (unsigned int)ci_head_ofs(&strm->res), (unsigned int)ci_data(&strm->res),
Willy Tarreauc9fa0482018-07-10 17:43:27 +02003370 (unsigned int)strm->res.buf.size);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003371
Christopher Fauletb9af8812019-01-04 14:30:44 +01003372 if (IS_HTX_STRM(strm)) {
3373 struct htx *htx = htxbuf(&strm->res.buf);
3374
3375 chunk_appendf(&trash,
3376 " htx=%p flags=0x%x size=%u data=%u used=%u wrap=%s extra=%llu\n",
Christopher Faulet192c6a22019-06-11 16:32:24 +02003377 htx, htx->flags, htx->size, htx->data, htx_nbblks(htx),
Christopher Faulet28f29c72019-04-30 17:55:45 +02003378 (htx->tail >= htx->head) ? "NO" : "YES",
Christopher Fauletb9af8812019-01-04 14:30:44 +01003379 (unsigned long long)htx->extra);
3380 }
3381
Willy Tarreaue6e52362019-01-04 17:42:57 +01003382 if (ci_putchk(si_ic(si), &trash) == -1)
3383 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003384
3385 /* use other states to dump the contents */
3386 }
3387 /* end of dump */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003388 done:
William Lallemand4c5b4d52016-11-21 08:51:11 +01003389 appctx->ctx.sess.uid = 0;
3390 appctx->ctx.sess.section = 0;
3391 return 1;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003392 full:
3393 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003394}
3395
3396
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003397static int cli_parse_show_sess(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemand4c5b4d52016-11-21 08:51:11 +01003398{
William Lallemand4c5b4d52016-11-21 08:51:11 +01003399 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
3400 return 1;
3401
3402 if (*args[2] && strcmp(args[2], "all") == 0)
3403 appctx->ctx.sess.target = (void *)-1;
3404 else if (*args[2])
3405 appctx->ctx.sess.target = (void *)strtoul(args[2], NULL, 0);
3406 else
3407 appctx->ctx.sess.target = NULL;
3408 appctx->ctx.sess.section = 0; /* start with stream status */
3409 appctx->ctx.sess.pos = 0;
Willy Tarreaua698eb62021-02-24 10:37:01 +01003410 appctx->ctx.sess.thr = 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003411
Willy Tarreaub9813182021-02-24 11:29:51 +01003412 /* let's set our own stream's epoch to the current one and increment
3413 * it so that we know which streams were already there before us.
3414 */
Willy Tarreau18515722021-04-06 11:57:41 +02003415 si_strm(appctx->owner)->stream_epoch = _HA_ATOMIC_FETCH_ADD(&stream_epoch, 1);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003416 return 0;
3417}
3418
3419/* This function dumps all streams' states onto the stream interface's
3420 * read buffer. It returns 0 if the output buffer is full and it needs
Willy Tarreaue6e52362019-01-04 17:42:57 +01003421 * to be called again, otherwise non-zero. It proceeds in an isolated
3422 * thread so there is no thread safety issue here.
William Lallemand4c5b4d52016-11-21 08:51:11 +01003423 */
3424static int cli_io_handler_dump_sess(struct appctx *appctx)
3425{
3426 struct stream_interface *si = appctx->owner;
3427 struct connection *conn;
3428
Willy Tarreaue6e52362019-01-04 17:42:57 +01003429 thread_isolate();
3430
William Lallemand4c5b4d52016-11-21 08:51:11 +01003431 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW))) {
3432 /* If we're forced to shut down, we might have to remove our
3433 * reference to the last stream being dumped.
3434 */
3435 if (appctx->st2 == STAT_ST_LIST) {
3436 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users)) {
Willy Tarreau2b718102021-04-21 07:32:39 +02003437 LIST_DELETE(&appctx->ctx.sess.bref.users);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003438 LIST_INIT(&appctx->ctx.sess.bref.users);
3439 }
3440 }
Willy Tarreaue6e52362019-01-04 17:42:57 +01003441 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003442 }
3443
3444 chunk_reset(&trash);
3445
3446 switch (appctx->st2) {
3447 case STAT_ST_INIT:
3448 /* the function had not been called yet, let's prepare the
3449 * buffer for a response. We initialize the current stream
3450 * pointer to the first in the global list. When a target
3451 * stream is being destroyed, it is responsible for updating
3452 * this pointer. We know we have reached the end when this
3453 * pointer points back to the head of the streams list.
3454 */
3455 LIST_INIT(&appctx->ctx.sess.bref.users);
Willy Tarreaua698eb62021-02-24 10:37:01 +01003456 appctx->ctx.sess.bref.ref = ha_thread_info[appctx->ctx.sess.thr].streams.n;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003457 appctx->st2 = STAT_ST_LIST;
3458 /* fall through */
3459
3460 case STAT_ST_LIST:
3461 /* first, let's detach the back-ref from a possible previous stream */
3462 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users)) {
Willy Tarreau2b718102021-04-21 07:32:39 +02003463 LIST_DELETE(&appctx->ctx.sess.bref.users);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003464 LIST_INIT(&appctx->ctx.sess.bref.users);
3465 }
3466
Willy Tarreau5d533e22021-02-24 11:53:17 +01003467 /* and start from where we stopped */
Willy Tarreaua698eb62021-02-24 10:37:01 +01003468 while (1) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003469 char pn[INET6_ADDRSTRLEN];
3470 struct stream *curr_strm;
Willy Tarreaua698eb62021-02-24 10:37:01 +01003471 int done= 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003472
Willy Tarreaua698eb62021-02-24 10:37:01 +01003473 if (appctx->ctx.sess.bref.ref == &ha_thread_info[appctx->ctx.sess.thr].streams)
3474 done = 1;
3475 else {
3476 /* check if we've found a stream created after issuing the "show sess" */
3477 curr_strm = LIST_ELEM(appctx->ctx.sess.bref.ref, struct stream *, list);
3478 if ((int)(curr_strm->stream_epoch - si_strm(appctx->owner)->stream_epoch) > 0)
3479 done = 1;
3480 }
William Lallemand4c5b4d52016-11-21 08:51:11 +01003481
Willy Tarreaua698eb62021-02-24 10:37:01 +01003482 if (done) {
3483 appctx->ctx.sess.thr++;
3484 if (appctx->ctx.sess.thr >= global.nbthread)
3485 break;
3486 appctx->ctx.sess.bref.ref = ha_thread_info[appctx->ctx.sess.thr].streams.n;
3487 continue;
3488 }
Willy Tarreau5d533e22021-02-24 11:53:17 +01003489
William Lallemand4c5b4d52016-11-21 08:51:11 +01003490 if (appctx->ctx.sess.target) {
3491 if (appctx->ctx.sess.target != (void *)-1 && appctx->ctx.sess.target != curr_strm)
3492 goto next_sess;
3493
Willy Tarreau2b718102021-04-21 07:32:39 +02003494 LIST_APPEND(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003495 /* call the proper dump() function and return if we're missing space */
Willy Tarreaue6e52362019-01-04 17:42:57 +01003496 if (!stats_dump_full_strm_to_buffer(si, curr_strm))
3497 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003498
3499 /* stream dump complete */
Willy Tarreau2b718102021-04-21 07:32:39 +02003500 LIST_DELETE(&appctx->ctx.sess.bref.users);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003501 LIST_INIT(&appctx->ctx.sess.bref.users);
3502 if (appctx->ctx.sess.target != (void *)-1) {
3503 appctx->ctx.sess.target = NULL;
3504 break;
3505 }
3506 else
3507 goto next_sess;
3508 }
3509
3510 chunk_appendf(&trash,
3511 "%p: proto=%s",
3512 curr_strm,
Willy Tarreaub7436612020-08-28 19:51:44 +02003513 strm_li(curr_strm) ? strm_li(curr_strm)->rx.proto->name : "?");
William Lallemand4c5b4d52016-11-21 08:51:11 +01003514
3515 conn = objt_conn(strm_orig(curr_strm));
Willy Tarreau71e34c12019-07-17 15:07:06 +02003516 switch (conn && conn_get_src(conn) ? addr_to_str(conn->src, pn, sizeof(pn)) : AF_UNSPEC) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003517 case AF_INET:
3518 case AF_INET6:
3519 chunk_appendf(&trash,
3520 " src=%s:%d fe=%s be=%s srv=%s",
3521 pn,
Willy Tarreau71e34c12019-07-17 15:07:06 +02003522 get_host_port(conn->src),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003523 strm_fe(curr_strm)->id,
3524 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
Willy Tarreau66182592021-12-06 07:01:02 +00003525 objt_server(curr_strm->target) ? __objt_server(curr_strm->target)->id : "<none>"
William Lallemand4c5b4d52016-11-21 08:51:11 +01003526 );
3527 break;
3528 case AF_UNIX:
3529 chunk_appendf(&trash,
3530 " src=unix:%d fe=%s be=%s srv=%s",
3531 strm_li(curr_strm)->luid,
3532 strm_fe(curr_strm)->id,
3533 (curr_strm->be->cap & PR_CAP_BE) ? curr_strm->be->id : "<NONE>",
Willy Tarreau66182592021-12-06 07:01:02 +00003534 objt_server(curr_strm->target) ? __objt_server(curr_strm->target)->id : "<none>"
William Lallemand4c5b4d52016-11-21 08:51:11 +01003535 );
3536 break;
3537 }
3538
3539 chunk_appendf(&trash,
Willy Tarreaub9813182021-02-24 11:29:51 +01003540 " ts=%02x epoch=%#x age=%s calls=%u rate=%u cpu=%llu lat=%llu",
3541 curr_strm->task->state, curr_strm->stream_epoch,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003542 human_time(now.tv_sec - curr_strm->logs.tv_accept.tv_sec, 1),
Willy Tarreau2e9c1d22019-04-24 08:28:31 +02003543 curr_strm->task->calls, read_freq_ctr(&curr_strm->call_rate),
Willy Tarreau9efd7452018-05-31 14:48:54 +02003544 (unsigned long long)curr_strm->task->cpu_time, (unsigned long long)curr_strm->task->lat_time);
William Lallemand4c5b4d52016-11-21 08:51:11 +01003545
3546 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003547 " rq[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003548 curr_strm->req.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003549 (unsigned int)ci_data(&curr_strm->req),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003550 curr_strm->req.analysers,
3551 curr_strm->req.rex ?
3552 human_time(TICKS_TO_MS(curr_strm->req.rex - now_ms),
3553 TICKS_TO_MS(1000)) : "");
3554
3555 chunk_appendf(&trash,
3556 ",wx=%s",
3557 curr_strm->req.wex ?
3558 human_time(TICKS_TO_MS(curr_strm->req.wex - now_ms),
3559 TICKS_TO_MS(1000)) : "");
3560
3561 chunk_appendf(&trash,
3562 ",ax=%s]",
3563 curr_strm->req.analyse_exp ?
3564 human_time(TICKS_TO_MS(curr_strm->req.analyse_exp - now_ms),
3565 TICKS_TO_MS(1000)) : "");
3566
3567 chunk_appendf(&trash,
Willy Tarreau506a29a2018-07-18 10:07:58 +02003568 " rp[f=%06xh,i=%u,an=%02xh,rx=%s",
William Lallemand4c5b4d52016-11-21 08:51:11 +01003569 curr_strm->res.flags,
Willy Tarreau7e9c30a2018-06-15 19:24:46 +02003570 (unsigned int)ci_data(&curr_strm->res),
William Lallemand4c5b4d52016-11-21 08:51:11 +01003571 curr_strm->res.analysers,
3572 curr_strm->res.rex ?
3573 human_time(TICKS_TO_MS(curr_strm->res.rex - now_ms),
3574 TICKS_TO_MS(1000)) : "");
3575
3576 chunk_appendf(&trash,
3577 ",wx=%s",
3578 curr_strm->res.wex ?
3579 human_time(TICKS_TO_MS(curr_strm->res.wex - now_ms),
3580 TICKS_TO_MS(1000)) : "");
3581
3582 chunk_appendf(&trash,
3583 ",ax=%s]",
3584 curr_strm->res.analyse_exp ?
3585 human_time(TICKS_TO_MS(curr_strm->res.analyse_exp - now_ms),
3586 TICKS_TO_MS(1000)) : "");
3587
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003588 conn = cs_conn(objt_cs(curr_strm->si[0].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003589 chunk_appendf(&trash,
3590 " s0=[%d,%1xh,fd=%d,ex=%s]",
3591 curr_strm->si[0].state,
3592 curr_strm->si[0].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003593 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003594 curr_strm->si[0].exp ?
3595 human_time(TICKS_TO_MS(curr_strm->si[0].exp - now_ms),
3596 TICKS_TO_MS(1000)) : "");
3597
Olivier Houchard9aaf7782017-09-13 18:30:23 +02003598 conn = cs_conn(objt_cs(curr_strm->si[1].end));
William Lallemand4c5b4d52016-11-21 08:51:11 +01003599 chunk_appendf(&trash,
3600 " s1=[%d,%1xh,fd=%d,ex=%s]",
3601 curr_strm->si[1].state,
3602 curr_strm->si[1].flags,
Willy Tarreau585744b2017-08-24 14:31:19 +02003603 conn ? conn->handle.fd : -1,
William Lallemand4c5b4d52016-11-21 08:51:11 +01003604 curr_strm->si[1].exp ?
3605 human_time(TICKS_TO_MS(curr_strm->si[1].exp - now_ms),
3606 TICKS_TO_MS(1000)) : "");
3607
3608 chunk_appendf(&trash,
3609 " exp=%s",
3610 curr_strm->task->expire ?
3611 human_time(TICKS_TO_MS(curr_strm->task->expire - now_ms),
3612 TICKS_TO_MS(1000)) : "");
3613 if (task_in_rq(curr_strm->task))
3614 chunk_appendf(&trash, " run(nice=%d)", curr_strm->task->nice);
3615
3616 chunk_appendf(&trash, "\n");
3617
Willy Tarreau06d80a92017-10-19 14:32:15 +02003618 if (ci_putchk(si_ic(si), &trash) == -1) {
William Lallemand4c5b4d52016-11-21 08:51:11 +01003619 /* let's try again later from this stream. We add ourselves into
3620 * this stream's users so that it can remove us upon termination.
3621 */
Willy Tarreau2b718102021-04-21 07:32:39 +02003622 LIST_APPEND(&curr_strm->back_refs, &appctx->ctx.sess.bref.users);
Willy Tarreaue6e52362019-01-04 17:42:57 +01003623 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003624 }
3625
3626 next_sess:
3627 appctx->ctx.sess.bref.ref = curr_strm->list.n;
3628 }
3629
3630 if (appctx->ctx.sess.target && appctx->ctx.sess.target != (void *)-1) {
3631 /* specified stream not found */
3632 if (appctx->ctx.sess.section > 0)
3633 chunk_appendf(&trash, " *** session terminated while we were watching it ***\n");
3634 else
3635 chunk_appendf(&trash, "Session not found.\n");
3636
Willy Tarreaue6e52362019-01-04 17:42:57 +01003637 if (ci_putchk(si_ic(si), &trash) == -1)
3638 goto full;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003639
3640 appctx->ctx.sess.target = NULL;
3641 appctx->ctx.sess.uid = 0;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003642 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003643 }
William Lallemand4c5b4d52016-11-21 08:51:11 +01003644 /* fall through */
3645
3646 default:
3647 appctx->st2 = STAT_ST_FIN;
Willy Tarreaue6e52362019-01-04 17:42:57 +01003648 goto done;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003649 }
Willy Tarreaue6e52362019-01-04 17:42:57 +01003650 done:
3651 thread_release();
3652 return 1;
3653 full:
3654 thread_release();
3655 si_rx_room_blk(si);
3656 return 0;
William Lallemand4c5b4d52016-11-21 08:51:11 +01003657}
3658
3659static void cli_release_show_sess(struct appctx *appctx)
3660{
Willy Tarreaua698eb62021-02-24 10:37:01 +01003661 if (appctx->st2 == STAT_ST_LIST && appctx->ctx.sess.thr < global.nbthread) {
Willy Tarreau49de6852021-02-24 13:46:12 +01003662 /* a dump was aborted, either in error or timeout. We need to
3663 * safely detach from the target stream's list. It's mandatory
3664 * to lock because a stream on the target thread could be moving
3665 * our node.
3666 */
3667 thread_isolate();
William Lallemand4c5b4d52016-11-21 08:51:11 +01003668 if (!LIST_ISEMPTY(&appctx->ctx.sess.bref.users))
Willy Tarreau2b718102021-04-21 07:32:39 +02003669 LIST_DELETE(&appctx->ctx.sess.bref.users);
Willy Tarreau49de6852021-02-24 13:46:12 +01003670 thread_release();
William Lallemand4c5b4d52016-11-21 08:51:11 +01003671 }
3672}
3673
Willy Tarreau61b65212016-11-24 11:09:25 +01003674/* Parses the "shutdown session" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003675static int cli_parse_shutdown_session(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau61b65212016-11-24 11:09:25 +01003676{
3677 struct stream *strm, *ptr;
Willy Tarreaua698eb62021-02-24 10:37:01 +01003678 int thr;
Willy Tarreau61b65212016-11-24 11:09:25 +01003679
3680 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3681 return 1;
3682
Willy Tarreau0e9a1282022-03-31 14:49:45 +02003683 ptr = (void *)strtoul(args[2], NULL, 0);
3684 if (!ptr)
Willy Tarreau9d008692019-08-09 11:21:01 +02003685 return cli_err(appctx, "Session pointer expected (use 'show sess').\n");
Willy Tarreau61b65212016-11-24 11:09:25 +01003686
Willy Tarreaua698eb62021-02-24 10:37:01 +01003687 strm = NULL;
Willy Tarreau61b65212016-11-24 11:09:25 +01003688
Willy Tarreau3f5dd292021-02-24 11:11:06 +01003689 thread_isolate();
3690
Willy Tarreau61b65212016-11-24 11:09:25 +01003691 /* first, look for the requested stream in the stream table */
Willy Tarreau0e9a1282022-03-31 14:49:45 +02003692 for (thr = 0; strm != ptr && thr < global.nbthread; thr++) {
Willy Tarreaua698eb62021-02-24 10:37:01 +01003693 list_for_each_entry(strm, &ha_thread_info[thr].streams, list) {
3694 if (strm == ptr) {
3695 stream_shutdown(strm, SF_ERR_KILLED);
3696 break;
3697 }
Willy Tarreau3f5dd292021-02-24 11:11:06 +01003698 }
Willy Tarreau61b65212016-11-24 11:09:25 +01003699 }
3700
Willy Tarreau3f5dd292021-02-24 11:11:06 +01003701 thread_release();
3702
Willy Tarreau61b65212016-11-24 11:09:25 +01003703 /* do we have the stream ? */
Willy Tarreau0e9a1282022-03-31 14:49:45 +02003704 if (strm != ptr)
Willy Tarreau9d008692019-08-09 11:21:01 +02003705 return cli_err(appctx, "No such session (use 'show sess').\n");
Willy Tarreau61b65212016-11-24 11:09:25 +01003706
Willy Tarreau61b65212016-11-24 11:09:25 +01003707 return 1;
3708}
3709
Willy Tarreau4e46b622016-11-23 16:50:48 +01003710/* Parses the "shutdown session server" directive, it always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02003711static int cli_parse_shutdown_sessions_server(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau4e46b622016-11-23 16:50:48 +01003712{
3713 struct server *sv;
Willy Tarreau4e46b622016-11-23 16:50:48 +01003714
3715 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
3716 return 1;
3717
3718 sv = cli_find_server(appctx, args[3]);
3719 if (!sv)
3720 return 1;
3721
3722 /* kill all the stream that are on this server */
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003723 HA_SPIN_LOCK(SERVER_LOCK, &sv->lock);
Willy Tarreaud9e26a72019-11-14 16:37:16 +01003724 srv_shutdown_streams(sv, SF_ERR_KILLED);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01003725 HA_SPIN_UNLOCK(SERVER_LOCK, &sv->lock);
Willy Tarreau4e46b622016-11-23 16:50:48 +01003726 return 1;
3727}
3728
William Lallemand4c5b4d52016-11-21 08:51:11 +01003729/* register cli keywords */
3730static struct cli_kw_list cli_kws = {{ },{
Willy Tarreaub205bfd2021-05-07 11:38:37 +02003731 { { "show", "sess", NULL }, "show sess [id] : report the list of current sessions or dump this exact session", cli_parse_show_sess, cli_io_handler_dump_sess, cli_release_show_sess },
3732 { { "shutdown", "session", NULL }, "shutdown session [id] : kill a specific session", cli_parse_shutdown_session, NULL, NULL },
3733 { { "shutdown", "sessions", "server" }, "shutdown sessions server <bk>/<srv> : kill sessions on a server", cli_parse_shutdown_sessions_server, NULL, NULL },
William Lallemand4c5b4d52016-11-21 08:51:11 +01003734 {{},}
3735}};
3736
Willy Tarreau0108d902018-11-25 19:14:37 +01003737INITCALL1(STG_REGISTER, cli_register_kw, &cli_kws);
3738
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003739/* main configuration keyword registration. */
3740static struct action_kw_list stream_tcp_keywords = { ILH, {
Christopher Fauletae863c62021-03-15 12:03:44 +01003741 { "switch-mode", stream_parse_switch_mode },
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003742 { "use-service", stream_parse_use_service },
3743 { /* END */ }
3744}};
3745
Willy Tarreau0108d902018-11-25 19:14:37 +01003746INITCALL1(STG_REGISTER, tcp_req_cont_keywords_register, &stream_tcp_keywords);
3747
Thierry FOURNIER5a363e72015-09-27 19:29:33 +02003748static struct action_kw_list stream_http_keywords = { ILH, {
3749 { "use-service", stream_parse_use_service },
3750 { /* END */ }
3751}};
3752
Willy Tarreau0108d902018-11-25 19:14:37 +01003753INITCALL1(STG_REGISTER, http_req_keywords_register, &stream_http_keywords);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003754
Amaury Denoyellef7719a22020-12-10 13:43:58 +01003755static int smp_fetch_cur_server_timeout(const struct arg *args, struct sample *smp, const char *km, void *private)
3756{
3757 smp->flags = SMP_F_VOL_TXN;
3758 smp->data.type = SMP_T_SINT;
3759 if (!smp->strm)
3760 return 0;
3761
3762 smp->data.u.sint = TICKS_TO_MS(smp->strm->res.rto);
3763 return 1;
3764}
3765
3766static int smp_fetch_cur_tunnel_timeout(const struct arg *args, struct sample *smp, const char *km, void *private)
3767{
3768 smp->flags = SMP_F_VOL_TXN;
3769 smp->data.type = SMP_T_SINT;
3770 if (!smp->strm)
3771 return 0;
3772
3773 smp->data.u.sint = TICKS_TO_MS(smp->strm->tunnel_timeout);
3774 return 1;
3775}
3776
Amaury Denoyelle12bada52020-12-10 13:43:57 +01003777/* Note: must not be declared <const> as its list will be overwritten.
3778 * Please take care of keeping this list alphabetically sorted.
3779 */
3780static struct sample_fetch_kw_list smp_kws = {ILH, {
Amaury Denoyellef7719a22020-12-10 13:43:58 +01003781 { "cur_server_timeout", smp_fetch_cur_server_timeout, 0, NULL, SMP_T_SINT, SMP_USE_BKEND, },
3782 { "cur_tunnel_timeout", smp_fetch_cur_tunnel_timeout, 0, NULL, SMP_T_SINT, SMP_USE_BKEND, },
Amaury Denoyelle12bada52020-12-10 13:43:57 +01003783 { NULL, NULL, 0, 0, 0 },
3784}};
3785
3786INITCALL1(STG_REGISTER, sample_register_fetches, &smp_kws);
3787
Willy Tarreaubaaee002006-06-26 02:48:02 +02003788/*
3789 * Local variables:
3790 * c-indent-level: 8
3791 * c-basic-offset: 8
3792 * End:
3793 */