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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
17#include <common/config.h>
Willy Tarreau9b28e032012-10-12 23:49:43 +020018#include <common/buffer.h>
Willy Tarreau7c669d72008-06-20 15:04:11 +020019#include <common/debug.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020020#include <common/memory.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020021
Willy Tarreau8a8d83b2015-04-13 13:24:54 +020022#include <types/applet.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020023#include <types/capture.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010024#include <types/global.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020025
Willy Tarreau1d0dfb12009-07-07 15:10:31 +020026#include <proto/acl.h>
Willy Tarreau61612d42012-04-19 18:42:05 +020027#include <proto/arg.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010028#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020029#include <proto/channel.h>
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +010030#include <proto/checks.h>
Willy Tarreaud2274c62012-07-06 14:29:45 +020031#include <proto/connection.h>
Willy Tarreau5ca791d2009-08-16 19:06:42 +020032#include <proto/dumpstats.h>
Willy Tarreaudd2f85e2012-09-02 22:34:23 +020033#include <proto/fd.h>
Willy Tarreau91c43d72010-06-20 11:19:22 +020034#include <proto/freq_ctr.h>
Willy Tarreau3041b9f2010-10-15 23:25:20 +020035#include <proto/frontend.h>
Willy Tarreau8d5d7f22007-01-21 19:16:41 +010036#include <proto/hdr_idx.h>
Thierry FOURNIER65f34c62015-02-16 20:11:43 +010037#include <proto/hlua.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +020038#include <proto/listener.h>
Willy Tarreau332f8bf2007-05-13 21:36:56 +020039#include <proto/log.h>
Willy Tarreaucbaaec42012-09-06 11:32:07 +020040#include <proto/raw_sock.h>
Willy Tarreaufeb76402015-04-03 14:10:06 +020041#include <proto/session.h>
Willy Tarreau87b09662015-04-03 00:22:06 +020042#include <proto/stream.h>
Willy Tarreau3eba98a2009-01-25 13:56:13 +010043#include <proto/pipe.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010044#include <proto/proto_http.h>
45#include <proto/proto_tcp.h>
Willy Tarreau1d0dfb12009-07-07 15:10:31 +020046#include <proto/proxy.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020047#include <proto/queue.h>
Willy Tarreau7f062c42009-03-05 18:43:00 +010048#include <proto/server.h>
Willy Tarreaucd3b0942012-04-27 21:52:18 +020049#include <proto/sample.h>
Emeric Brun1d33b292010-01-04 15:47:17 +010050#include <proto/stick_table.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010051#include <proto/stream_interface.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010052#include <proto/task.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020053
Willy Tarreau87b09662015-04-03 00:22:06 +020054struct pool_head *pool2_stream;
55struct list streams;
Willy Tarreaubaaee002006-06-26 02:48:02 +020056
Willy Tarreau87b09662015-04-03 00:22:06 +020057/* list of streams waiting for at least one buffer */
Willy Tarreaubf883e02014-11-25 21:10:35 +010058struct list buffer_wq = LIST_HEAD_INIT(buffer_wq);
59
Willy Tarreau9903f0e2015-04-04 18:50:31 +020060/* This function is called from the session handler which detects the end of
Willy Tarreau73b65ac2015-04-08 18:26:29 +020061 * handshake, in order to complete initialization of a valid stream. It must be
62 * called with a session (which may be embryonic). It returns the pointer to
63 * the newly created stream, or NULL in case of fatal error. The client-facing
64 * end point is assigned to <origin>, which must be valid. The task's context
65 * is set to the new stream, and its function is set to process_stream().
66 * Target and analysers are null.
Willy Tarreau2542b532012-08-31 16:01:23 +020067 */
Willy Tarreau73b65ac2015-04-08 18:26:29 +020068struct stream *stream_new(struct session *sess, struct task *t, enum obj_type *origin)
Willy Tarreau2542b532012-08-31 16:01:23 +020069{
Willy Tarreau02a0c0e2015-04-04 18:08:21 +020070 struct stream *s;
Willy Tarreau73b65ac2015-04-08 18:26:29 +020071 struct connection *conn = objt_conn(origin);
72 struct appctx *appctx = objt_appctx(origin);
Willy Tarreau2542b532012-08-31 16:01:23 +020073
Willy Tarreau02a0c0e2015-04-04 18:08:21 +020074 if (unlikely((s = pool_alloc2(pool2_stream)) == NULL))
Willy Tarreau02d86382015-04-05 12:00:52 +020075 return s;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +020076
77 /* minimum stream initialization required for an embryonic stream is
78 * fairly low. We need very little to execute L4 ACLs, then we need a
79 * task to make the client-side connection live on its own.
80 * - flags
81 * - stick-entry tracking
82 */
83 s->flags = 0;
Willy Tarreaufb9f5842015-04-05 18:19:23 +020084 s->logs.logwait = sess->fe->to_log;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +020085 s->logs.level = 0;
Willy Tarreau99eb0f12015-04-05 12:03:54 +020086 s->logs.accept_date = sess->accept_date; /* user-visible date for logging */
87 s->logs.tv_accept = sess->tv_accept; /* corrected date for internal use */
88 tv_zero(&s->logs.tv_request);
89 s->logs.t_queue = -1;
90 s->logs.t_connect = -1;
91 s->logs.t_data = -1;
92 s->logs.t_close = 0;
93 s->logs.bytes_in = s->logs.bytes_out = 0;
94 s->logs.prx_queue_size = 0; /* we get the number of pending conns before us */
95 s->logs.srv_queue_size = 0; /* we will get this number soon */
96
97 /* default logging function */
98 s->do_log = strm_log;
99
100 /* default error reporting function, may be changed by analysers */
101 s->srv_error = default_srv_error;
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200102
103 /* Initialise the current rule list pointer to NULL. We are sure that
104 * any rulelist match the NULL pointer.
105 */
106 s->current_rule_list = NULL;
107
108 memset(s->stkctr, 0, sizeof(s->stkctr));
109
110 s->sess = sess;
111 s->si[0].flags = SI_FL_NONE;
112 s->si[1].flags = SI_FL_ISBACK;
113
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200114 s->uniq_id = global.req_count++;
115
Willy Tarreau87b09662015-04-03 00:22:06 +0200116 /* OK, we're keeping the stream, so let's properly initialize the stream */
117 LIST_ADDQ(&streams, &s->list);
Willy Tarreau2542b532012-08-31 16:01:23 +0200118 LIST_INIT(&s->back_refs);
Willy Tarreaubf883e02014-11-25 21:10:35 +0100119 LIST_INIT(&s->buffer_wait);
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200120
Willy Tarreaue7dff022015-04-03 01:14:29 +0200121 s->flags |= SF_INITIALIZED;
Willy Tarreau2542b532012-08-31 16:01:23 +0200122 s->unique_id = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200123
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200124 s->task = t;
Willy Tarreaud1769b82015-04-06 00:25:48 +0200125 t->process = process_stream;
Willy Tarreau2542b532012-08-31 16:01:23 +0200126 t->context = s;
127 t->expire = TICK_ETERNITY;
128
Willy Tarreau87b09662015-04-03 00:22:06 +0200129 /* Note: initially, the stream's backend points to the frontend.
Willy Tarreau2542b532012-08-31 16:01:23 +0200130 * This changes later when switching rules are executed or
131 * when the default backend is assigned.
132 */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200133 s->be = sess->fe;
William Lallemand82fe75c2012-10-23 10:25:10 +0200134 s->comp_algo = NULL;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100135 s->req.buf = s->res.buf = NULL;
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200136 s->req_cap = NULL;
137 s->res_cap = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200138
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200139 /* this part should be common with other protocols */
Willy Tarreau819d3322014-11-28 12:12:34 +0100140 si_reset(&s->si[0]);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200141 si_set_state(&s->si[0], SI_ST_EST);
142
Willy Tarreau1f52bb22015-04-04 14:28:46 +0200143 /* attach the incoming connection to the stream interface now. */
Willy Tarreauf2b98742015-04-05 01:30:42 +0200144 if (conn)
145 si_attach_conn(&s->si[0], conn);
Willy Tarreau470280e2015-04-05 01:33:13 +0200146 else if (appctx)
147 si_attach_appctx(&s->si[0], appctx);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200148
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200149 if (likely(sess->fe->options2 & PR_O2_INDEPSTR))
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200150 s->si[0].flags |= SI_FL_INDEP_STR;
151
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200152 /* pre-initialize the other side's stream interface to an INIT state. The
153 * callbacks will be initialized before attempting to connect.
154 */
Willy Tarreau819d3322014-11-28 12:12:34 +0100155 si_reset(&s->si[1]);
Willy Tarreau2a6e8802013-10-24 15:50:53 +0200156 si_detach(&s->si[1]);
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200157
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200158 if (likely(sess->fe->options2 & PR_O2_INDEPSTR))
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200159 s->si[1].flags |= SI_FL_INDEP_STR;
160
Willy Tarreau87b09662015-04-03 00:22:06 +0200161 stream_init_srv_conn(s);
Willy Tarreaud1769b82015-04-06 00:25:48 +0200162 s->target = NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200163 s->pend_pos = NULL;
164
165 /* init store persistence */
166 s->store_count = 0;
167
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100168 channel_init(&s->req);
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100169 s->req.flags |= CF_READ_ATTACHED; /* the producer is already connected */
Willy Tarreaud1769b82015-04-06 00:25:48 +0200170 s->req.analysers = 0;
171 channel_auto_connect(&s->req); /* don't wait to establish connection */
172 channel_auto_close(&s->req); /* let the producer forward close requests */
Willy Tarreauc8815ef2015-04-05 18:15:59 +0200173
174 s->req.rto = sess->fe->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100175 s->req.wto = TICK_ETERNITY;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100176 s->req.rex = TICK_ETERNITY;
177 s->req.wex = TICK_ETERNITY;
178 s->req.analyse_exp = TICK_ETERNITY;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200179
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100180 channel_init(&s->res);
Willy Tarreauef573c02014-11-28 14:17:09 +0100181 s->res.flags |= CF_ISRESP;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100182 s->res.analysers = 0;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200183
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200184 if (sess->fe->options2 & PR_O2_NODELAY) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100185 s->req.flags |= CF_NEVER_WAIT;
186 s->res.flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200187 }
188
Willy Tarreauc8815ef2015-04-05 18:15:59 +0200189 s->res.wto = sess->fe->timeout.client;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100190 s->res.rto = TICK_ETERNITY;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100191 s->res.rex = TICK_ETERNITY;
192 s->res.wex = TICK_ETERNITY;
193 s->res.analyse_exp = TICK_ETERNITY;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200194
Willy Tarreaueee5b512015-04-03 23:46:31 +0200195 s->txn = NULL;
Willy Tarreau62f791e2012-03-09 11:32:30 +0100196
Thierry FOURNIERa718b292015-03-04 16:48:34 +0100197 HLUA_INIT(&s->hlua);
Thierry FOURNIER65f34c62015-02-16 20:11:43 +0100198
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200199 /* finish initialization of the accepted file descriptor */
Willy Tarreauf2b98742015-04-05 01:30:42 +0200200 if (conn)
201 conn_data_want_recv(conn);
Willy Tarreau470280e2015-04-05 01:33:13 +0200202 else if (appctx)
Willy Tarreaufe127932015-04-21 19:23:39 +0200203 si_applet_want_get(&s->si[0]);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200204
Willy Tarreaufb9f5842015-04-05 18:19:23 +0200205 if (sess->fe->accept && sess->fe->accept(s) < 0)
Willy Tarreauc5a7ff42015-04-05 11:52:08 +0200206 goto out_fail_accept;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200207
208 /* it is important not to call the wakeup function directly but to
209 * pass through task_wakeup(), because this one knows how to apply
210 * priorities to tasks.
211 */
212 task_wakeup(t, TASK_WOKEN_INIT);
Willy Tarreau02d86382015-04-05 12:00:52 +0200213 return s;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200214
215 /* Error unrolling */
Willy Tarreauc5a7ff42015-04-05 11:52:08 +0200216 out_fail_accept:
Willy Tarreau3b246412014-11-25 17:10:33 +0100217 LIST_DEL(&s->list);
Willy Tarreau02a0c0e2015-04-04 18:08:21 +0200218 pool_free2(pool2_stream, s);
Willy Tarreau02d86382015-04-05 12:00:52 +0200219 return NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200220}
221
Willy Tarreaubaaee002006-06-26 02:48:02 +0200222/*
Willy Tarreau87b09662015-04-03 00:22:06 +0200223 * frees the context associated to a stream. It must have been removed first.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200224 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200225static void stream_free(struct stream *s)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200226{
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200227 struct session *sess = strm_sess(s);
228 struct proxy *fe = sess->fe;
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100229 struct bref *bref, *back;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +0200230 struct connection *cli_conn = objt_conn(sess->origin);
Willy Tarreaua4cda672010-06-06 18:28:49 +0200231 int i;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100232
Willy Tarreaubaaee002006-06-26 02:48:02 +0200233 if (s->pend_pos)
234 pendconn_free(s->pend_pos);
Willy Tarreau922a8062008-12-04 09:33:58 +0100235
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100236 if (objt_server(s->target)) { /* there may be requests left pending in queue */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200237 if (s->flags & SF_CURR_SESS) {
238 s->flags &= ~SF_CURR_SESS;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100239 objt_server(s->target)->cur_sess--;
Willy Tarreau1e62de62008-11-11 20:20:02 +0100240 }
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100241 if (may_dequeue_tasks(objt_server(s->target), s->be))
242 process_srv_queue(objt_server(s->target));
Willy Tarreau1e62de62008-11-11 20:20:02 +0100243 }
Willy Tarreau922a8062008-12-04 09:33:58 +0100244
Willy Tarreau7c669d72008-06-20 15:04:11 +0200245 if (unlikely(s->srv_conn)) {
Willy Tarreau87b09662015-04-03 00:22:06 +0200246 /* the stream still has a reserved slot on a server, but
Willy Tarreau7c669d72008-06-20 15:04:11 +0200247 * it should normally be only the same as the one above,
248 * so this should not happen in fact.
249 */
250 sess_change_server(s, NULL);
251 }
252
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100253 if (s->req.pipe)
254 put_pipe(s->req.pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100255
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100256 if (s->res.pipe)
257 put_pipe(s->res.pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100258
Willy Tarreaubf883e02014-11-25 21:10:35 +0100259 /* We may still be present in the buffer wait queue */
260 if (!LIST_ISEMPTY(&s->buffer_wait)) {
261 LIST_DEL(&s->buffer_wait);
262 LIST_INIT(&s->buffer_wait);
263 }
264
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100265 b_drop(&s->req.buf);
266 b_drop(&s->res.buf);
Willy Tarreaubf883e02014-11-25 21:10:35 +0100267 if (!LIST_ISEMPTY(&buffer_wq))
Willy Tarreau87b09662015-04-03 00:22:06 +0200268 stream_offer_buffers();
Willy Tarreau9b28e032012-10-12 23:49:43 +0200269
Thierry FOURNIERa718b292015-03-04 16:48:34 +0100270 hlua_ctx_destroy(&s->hlua);
Willy Tarreaueee5b512015-04-03 23:46:31 +0200271 if (s->txn)
272 http_end_txn(s);
Willy Tarreau46023632010-01-07 22:51:47 +0100273
Willy Tarreau1e954912012-10-12 17:50:05 +0200274 /* ensure the client-side transport layer is destroyed */
Willy Tarreauf79c8172013-10-21 16:30:56 +0200275 if (cli_conn)
276 conn_force_close(cli_conn);
Willy Tarreau1e954912012-10-12 17:50:05 +0200277
Willy Tarreaua4cda672010-06-06 18:28:49 +0200278 for (i = 0; i < s->store_count; i++) {
279 if (!s->store[i].ts)
280 continue;
281 stksess_free(s->store[i].table, s->store[i].ts);
282 s->store[i].ts = NULL;
283 }
284
Willy Tarreaueee5b512015-04-03 23:46:31 +0200285 if (s->txn) {
286 pool_free2(pool2_hdr_idx, s->txn->hdr_idx.v);
287 pool_free2(pool2_http_txn, s->txn);
288 s->txn = NULL;
289 }
290
Willy Tarreau92fb9832007-10-16 17:34:28 +0200291 if (fe) {
Willy Tarreaucb7dd012015-04-03 22:16:32 +0200292 pool_free2(fe->rsp_cap_pool, s->res_cap);
293 pool_free2(fe->req_cap_pool, s->req_cap);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200294 }
Willy Tarreau0937bc42009-12-22 15:03:09 +0100295
Willy Tarreau87b09662015-04-03 00:22:06 +0200296 stream_store_counters(s);
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +0200297
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100298 list_for_each_entry_safe(bref, back, &s->back_refs, users) {
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100299 /* we have to unlink all watchers. We must not relink them if
Willy Tarreau87b09662015-04-03 00:22:06 +0200300 * this stream was the last one in the list.
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100301 */
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100302 LIST_DEL(&bref->users);
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100303 LIST_INIT(&bref->users);
Willy Tarreau87b09662015-04-03 00:22:06 +0200304 if (s->list.n != &streams)
305 LIST_ADDQ(&LIST_ELEM(s->list.n, struct stream *, list)->back_refs, &bref->users);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100306 bref->ref = s->list.n;
307 }
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100308 LIST_DEL(&s->list);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200309 si_release_endpoint(&s->si[1]);
310 si_release_endpoint(&s->si[0]);
Willy Tarreaufeb76402015-04-03 14:10:06 +0200311
312 /* FIXME: for now we have a 1:1 relation between stream and session so
313 * the stream must free the session.
314 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200315 pool_free2(pool2_stream, s);
Willy Tarreau11c36242015-04-04 15:54:03 +0200316 session_free(sess);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200317
318 /* We may want to free the maximum amount of pools if the proxy is stopping */
Willy Tarreau92fb9832007-10-16 17:34:28 +0200319 if (fe && unlikely(fe->state == PR_STSTOPPED)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200320 pool_flush2(pool2_buffer);
Willy Tarreau63986c72015-04-03 22:55:33 +0200321 pool_flush2(pool2_http_txn);
Willy Tarreau34eb6712011-10-24 18:15:04 +0200322 pool_flush2(pool2_hdr_idx);
Willy Tarreau48d63db2008-08-03 17:41:33 +0200323 pool_flush2(pool2_requri);
324 pool_flush2(pool2_capture);
Willy Tarreau87b09662015-04-03 00:22:06 +0200325 pool_flush2(pool2_stream);
Willy Tarreaufeb76402015-04-03 14:10:06 +0200326 pool_flush2(pool2_session);
Willy Tarreau3a5e0602014-11-13 16:46:28 +0100327 pool_flush2(pool2_connection);
328 pool_flush2(pool2_pendconn);
Willy Tarreau48d63db2008-08-03 17:41:33 +0200329 pool_flush2(fe->req_cap_pool);
330 pool_flush2(fe->rsp_cap_pool);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200331 }
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200332}
333
Willy Tarreau78955f42014-12-28 13:09:02 +0100334/* Allocates a receive buffer for channel <chn>, but only if it's guaranteed
335 * that it's not the last available buffer or it's the response buffer. Unless
336 * the buffer is the response buffer, an extra control is made so that we always
337 * keep <tune.buffers.reserved> buffers available after this allocation. To be
338 * called at the beginning of recv() callbacks to ensure that the required
339 * buffers are properly allocated. Returns 0 in case of failure, non-zero
340 * otherwise.
Willy Tarreau656859d2014-11-25 19:46:36 +0100341 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200342int stream_alloc_recv_buffer(struct channel *chn)
Willy Tarreau656859d2014-11-25 19:46:36 +0100343{
Willy Tarreau87b09662015-04-03 00:22:06 +0200344 struct stream *s;
Willy Tarreau656859d2014-11-25 19:46:36 +0100345 struct buffer *b;
Willy Tarreaua24adf02014-11-27 01:11:56 +0100346 int margin = 0;
Willy Tarreau656859d2014-11-25 19:46:36 +0100347
Willy Tarreau78955f42014-12-28 13:09:02 +0100348 if (!(chn->flags & CF_ISRESP))
Willy Tarreaua24adf02014-11-27 01:11:56 +0100349 margin = global.tune.reserved_bufs;
350
Willy Tarreau78955f42014-12-28 13:09:02 +0100351 s = chn_sess(chn);
352
353 b = b_alloc_margin(&chn->buf, margin);
Willy Tarreau656859d2014-11-25 19:46:36 +0100354 if (b)
355 return 1;
356
Willy Tarreaubf883e02014-11-25 21:10:35 +0100357 if (LIST_ISEMPTY(&s->buffer_wait))
358 LIST_ADDQ(&buffer_wq, &s->buffer_wait);
Willy Tarreau656859d2014-11-25 19:46:36 +0100359 return 0;
360}
361
Willy Tarreau87b09662015-04-03 00:22:06 +0200362/* Allocates a work buffer for stream <s>. It is meant to be called inside
363 * process_stream(). It will only allocate the side needed for the function
Willy Tarreaubc39a5d2015-04-20 15:52:18 +0200364 * to work fine, which is the response buffer so that an error message may be
365 * built and returned. Response buffers may be allocated from the reserve, this
366 * is critical to ensure that a response may always flow and will never block a
367 * server from releasing a connection. Returns 0 in case of failure, non-zero
368 * otherwise.
Willy Tarreau656859d2014-11-25 19:46:36 +0100369 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200370int stream_alloc_work_buffer(struct stream *s)
Willy Tarreau656859d2014-11-25 19:46:36 +0100371{
Willy Tarreaubf883e02014-11-25 21:10:35 +0100372 if (!LIST_ISEMPTY(&s->buffer_wait)) {
373 LIST_DEL(&s->buffer_wait);
374 LIST_INIT(&s->buffer_wait);
375 }
Willy Tarreau656859d2014-11-25 19:46:36 +0100376
Willy Tarreaubc39a5d2015-04-20 15:52:18 +0200377 if (b_alloc_margin(&s->res.buf, 0))
Willy Tarreau656859d2014-11-25 19:46:36 +0100378 return 1;
379
Willy Tarreaubf883e02014-11-25 21:10:35 +0100380 LIST_ADDQ(&buffer_wq, &s->buffer_wait);
Willy Tarreau656859d2014-11-25 19:46:36 +0100381 return 0;
382}
383
384/* releases unused buffers after processing. Typically used at the end of the
Willy Tarreaubf883e02014-11-25 21:10:35 +0100385 * update() functions. It will try to wake up as many tasks as the number of
Willy Tarreau87b09662015-04-03 00:22:06 +0200386 * buffers that it releases. In practice, most often streams are blocked on
Willy Tarreaubf883e02014-11-25 21:10:35 +0100387 * a single buffer, so it makes sense to try to wake two up when two buffers
388 * are released at once.
Willy Tarreau656859d2014-11-25 19:46:36 +0100389 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200390void stream_release_buffers(struct stream *s)
Willy Tarreau656859d2014-11-25 19:46:36 +0100391{
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100392 if (s->req.buf->size && buffer_empty(s->req.buf))
393 b_free(&s->req.buf);
Willy Tarreau656859d2014-11-25 19:46:36 +0100394
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100395 if (s->res.buf->size && buffer_empty(s->res.buf))
396 b_free(&s->res.buf);
Willy Tarreau656859d2014-11-25 19:46:36 +0100397
Willy Tarreaubf883e02014-11-25 21:10:35 +0100398 /* if we're certain to have at least 1 buffer available, and there is
399 * someone waiting, we can wake up a waiter and offer them.
400 */
Willy Tarreaua24adf02014-11-27 01:11:56 +0100401 if (!LIST_ISEMPTY(&buffer_wq))
Willy Tarreau87b09662015-04-03 00:22:06 +0200402 stream_offer_buffers();
Willy Tarreaubf883e02014-11-25 21:10:35 +0100403}
404
Willy Tarreau87b09662015-04-03 00:22:06 +0200405/* Runs across the list of pending streams waiting for a buffer and wakes one
Willy Tarreaua24adf02014-11-27 01:11:56 +0100406 * up if buffers are available. Will stop when the run queue reaches <rqlimit>.
Willy Tarreau87b09662015-04-03 00:22:06 +0200407 * Should not be called directly, use stream_offer_buffers() instead.
Willy Tarreaubf883e02014-11-25 21:10:35 +0100408 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200409void __stream_offer_buffers(int rqlimit)
Willy Tarreaubf883e02014-11-25 21:10:35 +0100410{
Willy Tarreau87b09662015-04-03 00:22:06 +0200411 struct stream *sess, *bak;
Willy Tarreaubf883e02014-11-25 21:10:35 +0100412
413 list_for_each_entry_safe(sess, bak, &buffer_wq, buffer_wait) {
Willy Tarreaua24adf02014-11-27 01:11:56 +0100414 if (rqlimit <= run_queue)
415 break;
416
Willy Tarreaubf883e02014-11-25 21:10:35 +0100417 if (sess->task->state & TASK_RUNNING)
418 continue;
419
420 LIST_DEL(&sess->buffer_wait);
421 LIST_INIT(&sess->buffer_wait);
Willy Tarreaubf883e02014-11-25 21:10:35 +0100422 task_wakeup(sess->task, TASK_WOKEN_RES);
Willy Tarreaubf883e02014-11-25 21:10:35 +0100423 }
Willy Tarreau656859d2014-11-25 19:46:36 +0100424}
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200425
426/* perform minimal intializations, report 0 in case of error, 1 if OK. */
Willy Tarreau87b09662015-04-03 00:22:06 +0200427int init_stream()
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200428{
Willy Tarreau87b09662015-04-03 00:22:06 +0200429 LIST_INIT(&streams);
430 pool2_stream = create_pool("stream", sizeof(struct stream), MEM_F_SHARED);
431 return pool2_stream != NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200432}
433
Willy Tarreau87b09662015-04-03 00:22:06 +0200434void stream_process_counters(struct stream *s)
Willy Tarreau30e71012007-11-26 20:15:35 +0100435{
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200436 struct session *sess = s->sess;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100437 unsigned long long bytes;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100438 void *ptr;
439 int i;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100440
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100441 bytes = s->req.total - s->logs.bytes_in;
442 s->logs.bytes_in = s->req.total;
443 if (bytes) {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200444 sess->fe->fe_counters.bytes_in += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100445
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100446 s->be->be_counters.bytes_in += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100447
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100448 if (objt_server(s->target))
449 objt_server(s->target)->counters.bytes_in += bytes;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200450
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200451 if (sess->listener && sess->listener->counters)
452 sess->listener->counters->bytes_in += bytes;
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200453
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100454 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200455 struct stkctr *stkctr = &s->stkctr[i];
456
457 if (!stkctr_entry(stkctr)) {
458 stkctr = &sess->stkctr[i];
459 if (!stkctr_entry(stkctr))
460 continue;
461 }
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200462
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200463 ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_IN_CNT);
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100464 if (ptr)
465 stktable_data_cast(ptr, bytes_in_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200466
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200467 ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_IN_RATE);
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100468 if (ptr)
469 update_freq_ctr_period(&stktable_data_cast(ptr, bytes_in_rate),
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200470 stkctr->table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u, bytes);
Willy Tarreau30e71012007-11-26 20:15:35 +0100471 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100472 }
473
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100474 bytes = s->res.total - s->logs.bytes_out;
475 s->logs.bytes_out = s->res.total;
476 if (bytes) {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +0200477 sess->fe->fe_counters.bytes_out += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100478
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100479 s->be->be_counters.bytes_out += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100480
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100481 if (objt_server(s->target))
482 objt_server(s->target)->counters.bytes_out += bytes;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200483
Willy Tarreaufb0afa72015-04-03 14:46:27 +0200484 if (sess->listener && sess->listener->counters)
485 sess->listener->counters->bytes_out += bytes;
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200486
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100487 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200488 struct stkctr *stkctr = &s->stkctr[i];
489
490 if (!stkctr_entry(stkctr)) {
491 stkctr = &sess->stkctr[i];
492 if (!stkctr_entry(stkctr))
493 continue;
494 }
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200495
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200496 ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_OUT_CNT);
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100497 if (ptr)
498 stktable_data_cast(ptr, bytes_out_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200499
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200500 ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_OUT_RATE);
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100501 if (ptr)
502 update_freq_ctr_period(&stktable_data_cast(ptr, bytes_out_rate),
Willy Tarreau8b7f8682015-04-04 16:29:12 +0200503 stkctr->table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u, bytes);
Willy Tarreau30e71012007-11-26 20:15:35 +0100504 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100505 }
506}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200507
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100508/* This function is called with (si->state == SI_ST_CON) meaning that a
509 * connection was attempted and that the file descriptor is already allocated.
510 * We must check for establishment, error and abort. Possible output states
511 * are SI_ST_EST (established), SI_ST_CER (error), SI_ST_DIS (abort), and
512 * SI_ST_CON (no change). The function returns 0 if it switches to SI_ST_CER,
Willy Tarreau87b09662015-04-03 00:22:06 +0200513 * otherwise 1. This only works with connection-based streams.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100514 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200515static int sess_update_st_con_tcp(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100516{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100517 struct stream_interface *si = &s->si[1];
518 struct channel *req = &s->req;
519 struct channel *rep = &s->res;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200520 struct connection *srv_conn = __objt_conn(si->end);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100521
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100522 /* If we got an error, or if nothing happened and the connection timed
523 * out, we must give up. The CER state handler will take care of retry
524 * attempts and error reports.
525 */
526 if (unlikely(si->flags & (SI_FL_EXP|SI_FL_ERR))) {
Willy Tarreau103197d2014-11-28 15:26:12 +0100527 if (unlikely(req->flags & CF_WRITE_PARTIAL)) {
Willy Tarreaue3224e82012-10-29 22:41:31 +0100528 /* Some data were sent past the connection establishment,
529 * so we need to pretend we're established to log correctly
530 * and let later states handle the failure.
531 */
Willy Tarreaue3224e82012-10-29 22:41:31 +0100532 si->state = SI_ST_EST;
533 si->err_type = SI_ET_DATA_ERR;
Willy Tarreau103197d2014-11-28 15:26:12 +0100534 rep->flags |= CF_READ_ERROR | CF_WRITE_ERROR;
Willy Tarreaue3224e82012-10-29 22:41:31 +0100535 return 1;
536 }
Willy Tarreau127334e2009-03-28 10:47:26 +0100537 si->exp = TICK_ETERNITY;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100538 si->state = SI_ST_CER;
Willy Tarreau0ede5a32012-12-08 08:44:02 +0100539
Willy Tarreauf79c8172013-10-21 16:30:56 +0200540 conn_force_close(srv_conn);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100541
542 if (si->err_type)
543 return 0;
544
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100545 if (si->flags & SI_FL_ERR)
546 si->err_type = SI_ET_CONN_ERR;
547 else
548 si->err_type = SI_ET_CONN_TO;
549 return 0;
550 }
551
552 /* OK, maybe we want to abort */
Willy Tarreaua7a7ebc2012-12-30 00:50:35 +0100553 if (!(req->flags & CF_WRITE_PARTIAL) &&
554 unlikely((rep->flags & CF_SHUTW) ||
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200555 ((req->flags & CF_SHUTW_NOW) && /* FIXME: this should not prevent a connection from establishing */
556 ((!(req->flags & CF_WRITE_ACTIVITY) && channel_is_empty(req)) ||
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100557 s->be->options & PR_O_ABRT_CLOSE)))) {
558 /* give up */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200559 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100560 si->err_type |= SI_ET_CONN_ABRT;
Willy Tarreau84455332009-03-15 22:34:05 +0100561 if (s->srv_error)
562 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100563 return 1;
564 }
565
566 /* we need to wait a bit more if there was no activity either */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200567 if (!(req->flags & CF_WRITE_ACTIVITY))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100568 return 1;
569
570 /* OK, this means that a connection succeeded. The caller will be
571 * responsible for handling the transition from CON to EST.
572 */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100573 si->state = SI_ST_EST;
574 si->err_type = SI_ET_NONE;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100575 return 1;
576}
577
578/* This function is called with (si->state == SI_ST_CER) meaning that a
579 * previous connection attempt has failed and that the file descriptor
580 * has already been released. Possible causes include asynchronous error
581 * notification and time out. Possible output states are SI_ST_CLO when
582 * retries are exhausted, SI_ST_TAR when a delay is wanted before a new
583 * connection attempt, SI_ST_ASS when it's wise to retry on the same server,
584 * and SI_ST_REQ when an immediate redispatch is wanted. The buffers are
585 * marked as in error state. It returns 0.
586 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200587static int sess_update_st_cer(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100588{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100589 struct stream_interface *si = &s->si[1];
590
Willy Tarreau87b09662015-04-03 00:22:06 +0200591 /* we probably have to release last stream from the server */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100592 if (objt_server(s->target)) {
593 health_adjust(objt_server(s->target), HANA_STATUS_L4_ERR);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100594
Willy Tarreaue7dff022015-04-03 01:14:29 +0200595 if (s->flags & SF_CURR_SESS) {
596 s->flags &= ~SF_CURR_SESS;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100597 objt_server(s->target)->cur_sess--;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100598 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100599 }
600
601 /* ensure that we have enough retries left */
Willy Tarreauee28de02010-06-01 09:51:00 +0200602 si->conn_retries--;
603 if (si->conn_retries < 0) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100604 if (!si->err_type) {
605 si->err_type = SI_ET_CONN_ERR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100606 }
607
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100608 if (objt_server(s->target))
609 objt_server(s->target)->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100610 s->be->be_counters.failed_conns++;
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100611 sess_change_server(s, NULL);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100612 if (may_dequeue_tasks(objt_server(s->target), s->be))
613 process_srv_queue(objt_server(s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100614
615 /* shutw is enough so stop a connecting socket */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200616 si_shutw(si);
Willy Tarreau103197d2014-11-28 15:26:12 +0100617 s->req.flags |= CF_WRITE_ERROR;
618 s->res.flags |= CF_READ_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100619
620 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100621 if (s->srv_error)
622 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100623 return 0;
624 }
625
626 /* If the "redispatch" option is set on the backend, we are allowed to
Joseph Lynch726ab712015-05-11 23:25:34 -0700627 * retry on another server. By default this redispatch occurs on the
628 * last retry, but if configured we allow redispatches to occur on
629 * configurable intervals, e.g. on every retry. In order to achieve this,
Willy Tarreau87b09662015-04-03 00:22:06 +0200630 * we must mark the stream unassigned, and eventually clear the DIRECT
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100631 * bit to ignore any persistence cookie. We won't count a retry nor a
632 * redispatch yet, because this will depend on what server is selected.
Willy Tarreau33a14e52014-06-13 17:49:40 +0200633 * If the connection is not persistent, the balancing algorithm is not
634 * determinist (round robin) and there is more than one active server,
635 * we accept to perform an immediate redispatch without waiting since
636 * we don't care about this particular server.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100637 */
Willy Tarreau33a14e52014-06-13 17:49:40 +0200638 if (objt_server(s->target) &&
Joseph Lynch726ab712015-05-11 23:25:34 -0700639 (s->be->options & PR_O_REDISP) && !(s->flags & SF_FORCE_PRST) &&
640 ((((s->be->redispatch_after > 0) &&
641 ((s->be->conn_retries - si->conn_retries) %
642 s->be->redispatch_after == 0)) ||
643 ((s->be->redispatch_after < 0) &&
644 ((s->be->conn_retries - si->conn_retries) %
645 (s->be->conn_retries + 1 + s->be->redispatch_after) == 0))) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +0200646 (!(s->flags & SF_DIRECT) && s->be->srv_act > 1 &&
Joseph Lynch726ab712015-05-11 23:25:34 -0700647 ((s->be->lbprm.algo & BE_LB_KIND) == BE_LB_KIND_RR)))) {
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100648 sess_change_server(s, NULL);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100649 if (may_dequeue_tasks(objt_server(s->target), s->be))
650 process_srv_queue(objt_server(s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100651
Willy Tarreaue7dff022015-04-03 01:14:29 +0200652 s->flags &= ~(SF_DIRECT | SF_ASSIGNED | SF_ADDR_SET);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100653 si->state = SI_ST_REQ;
654 } else {
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100655 if (objt_server(s->target))
656 objt_server(s->target)->counters.retries++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100657 s->be->be_counters.retries++;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100658 si->state = SI_ST_ASS;
659 }
660
661 if (si->flags & SI_FL_ERR) {
662 /* The error was an asynchronous connection error, and we will
663 * likely have to retry connecting to the same server, most
664 * likely leading to the same result. To avoid this, we wait
Willy Tarreaub0290662014-06-13 17:04:44 +0200665 * MIN(one second, connect timeout) before retrying.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100666 */
667
Willy Tarreaub0290662014-06-13 17:04:44 +0200668 int delay = 1000;
669
670 if (s->be->timeout.connect && s->be->timeout.connect < delay)
671 delay = s->be->timeout.connect;
672
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100673 if (!si->err_type)
674 si->err_type = SI_ET_CONN_ERR;
675
Willy Tarreaudb6d0122014-06-13 17:40:15 +0200676 /* only wait when we're retrying on the same server */
677 if (si->state == SI_ST_ASS ||
678 (s->be->lbprm.algo & BE_LB_KIND) != BE_LB_KIND_RR ||
679 (s->be->srv_act <= 1)) {
680 si->state = SI_ST_TAR;
681 si->exp = tick_add(now_ms, MS_TO_TICKS(delay));
682 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100683 return 0;
684 }
685 return 0;
686}
687
688/*
689 * This function handles the transition between the SI_ST_CON state and the
Willy Tarreau85e7d002010-05-31 11:57:51 +0200690 * SI_ST_EST state. It must only be called after switching from SI_ST_CON (or
Willy Tarreau26d8c592012-05-07 18:12:14 +0200691 * SI_ST_INI) to SI_ST_EST, but only when a ->proto is defined.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100692 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200693static void sess_establish(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100694{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100695 struct stream_interface *si = &s->si[1];
696 struct channel *req = &s->req;
697 struct channel *rep = &s->res;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100698
Willy Tarreau0e37f1c2013-12-31 23:06:46 +0100699 /* First, centralize the timers information */
700 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
701 si->exp = TICK_ETERNITY;
702
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100703 if (objt_server(s->target))
704 health_adjust(objt_server(s->target), HANA_STATUS_L4_OK);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100705
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100706 if (s->be->mode == PR_MODE_TCP) { /* let's allow immediate data connection in this case */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100707 /* if the user wants to log as soon as possible, without counting
708 * bytes from the server, then this is the right moment. */
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200709 if (!LIST_ISEMPTY(&strm_fe(s)->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100710 s->logs.t_close = s->logs.t_connect; /* to get a valid end date */
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100711 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100712 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100713 }
714 else {
Willy Tarreaud81ca042013-12-31 22:33:13 +0100715 rep->flags |= CF_READ_DONTWAIT; /* a single read is enough to get response headers */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100716 }
717
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200718 rep->analysers |= strm_fe(s)->fe_rsp_ana | s->be->be_rsp_ana;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200719 rep->flags |= CF_READ_ATTACHED; /* producer is now attached */
Willy Tarreau644c1012014-04-30 18:11:11 +0200720 if (req->flags & CF_WAKE_CONNECT) {
721 req->flags |= CF_WAKE_ONCE;
722 req->flags &= ~CF_WAKE_CONNECT;
723 }
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200724 if (objt_conn(si->end)) {
Willy Tarreaud04e8582010-05-31 12:31:35 +0200725 /* real connections have timeouts */
726 req->wto = s->be->timeout.server;
727 rep->rto = s->be->timeout.server;
728 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100729 req->wex = TICK_ETERNITY;
730}
731
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100732/* Update back stream interface status for input states SI_ST_ASS, SI_ST_QUE,
733 * SI_ST_TAR. Other input states are simply ignored.
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +0100734 * Possible output states are SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ, SI_ST_CON
735 * and SI_ST_EST. Flags must have previously been updated for timeouts and other
736 * conditions.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100737 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200738static void sess_update_stream_int(struct stream *s)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100739{
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100740 struct server *srv = objt_server(s->target);
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100741 struct stream_interface *si = &s->si[1];
Willy Tarreau103197d2014-11-28 15:26:12 +0100742 struct channel *req = &s->req;
Willy Tarreau827aee92011-03-10 16:55:02 +0100743
Willy Tarreau02d6cfc2012-03-01 18:19:58 +0100744 DPRINTF(stderr,"[%u] %s: sess=%p rq=%p, rp=%p, exp(r,w)=%u,%u rqf=%08x rpf=%08x rqh=%d rqt=%d rph=%d rpt=%d cs=%d ss=%d\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100745 now_ms, __FUNCTION__,
746 s,
CJ Ess6eac32e2015-05-02 16:35:24 -0400747 req, &s->res,
Willy Tarreau103197d2014-11-28 15:26:12 +0100748 req->rex, s->res.wex,
749 req->flags, s->res.flags,
CJ Ess6eac32e2015-05-02 16:35:24 -0400750 req->buf->i, req->buf->o, s->res.buf->i, s->res.buf->o, s->si[0].state, s->si[1].state);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100751
752 if (si->state == SI_ST_ASS) {
753 /* Server assigned to connection request, we have to try to connect now */
754 int conn_err;
755
756 conn_err = connect_server(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100757 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +0100758
Willy Tarreaue7dff022015-04-03 01:14:29 +0200759 if (conn_err == SF_ERR_NONE) {
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +0100760 /* state = SI_ST_CON or SI_ST_EST now */
Willy Tarreau827aee92011-03-10 16:55:02 +0100761 if (srv)
762 srv_inc_sess_ctr(srv);
Bhaskar Maddalaa20cb852014-02-03 16:26:46 -0500763 if (srv)
764 srv_set_sess_last(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100765 return;
766 }
767
768 /* We have received a synchronous error. We might have to
769 * abort, retry immediately or redispatch.
770 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200771 if (conn_err == SF_ERR_INTERNAL) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100772 if (!si->err_type) {
773 si->err_type = SI_ET_CONN_OTHER;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100774 }
775
Willy Tarreau827aee92011-03-10 16:55:02 +0100776 if (srv)
777 srv_inc_sess_ctr(srv);
778 if (srv)
Bhaskar Maddalaa20cb852014-02-03 16:26:46 -0500779 srv_set_sess_last(srv);
780 if (srv)
Willy Tarreau827aee92011-03-10 16:55:02 +0100781 srv->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100782 s->be->be_counters.failed_conns++;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100783
Willy Tarreau87b09662015-04-03 00:22:06 +0200784 /* release other streams waiting for this server */
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100785 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +0100786 if (may_dequeue_tasks(srv, s->be))
787 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100788
789 /* Failed and not retryable. */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200790 si_shutr(si);
791 si_shutw(si);
Willy Tarreau103197d2014-11-28 15:26:12 +0100792 req->flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100793
794 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
795
Willy Tarreau87b09662015-04-03 00:22:06 +0200796 /* no stream was ever accounted for this server */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100797 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100798 if (s->srv_error)
799 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100800 return;
801 }
802
803 /* We are facing a retryable error, but we don't want to run a
804 * turn-around now, as the problem is likely a source port
805 * allocation problem, so we want to retry now.
806 */
807 si->state = SI_ST_CER;
808 si->flags &= ~SI_FL_ERR;
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100809 sess_update_st_cer(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100810 /* now si->state is one of SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ */
811 return;
812 }
813 else if (si->state == SI_ST_QUE) {
814 /* connection request was queued, check for any update */
815 if (!s->pend_pos) {
816 /* The connection is not in the queue anymore. Either
817 * we have a server connection slot available and we
818 * go directly to the assigned state, or we need to
819 * load-balance first and go to the INI state.
820 */
821 si->exp = TICK_ETERNITY;
Willy Tarreaue7dff022015-04-03 01:14:29 +0200822 if (unlikely(!(s->flags & SF_ASSIGNED)))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100823 si->state = SI_ST_REQ;
824 else {
825 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
826 si->state = SI_ST_ASS;
827 }
828 return;
829 }
830
831 /* Connection request still in queue... */
832 if (si->flags & SI_FL_EXP) {
833 /* ... and timeout expired */
834 si->exp = TICK_ETERNITY;
835 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau827aee92011-03-10 16:55:02 +0100836 if (srv)
837 srv->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100838 s->be->be_counters.failed_conns++;
Willy Tarreau73b013b2012-05-21 16:31:45 +0200839 si_shutr(si);
840 si_shutw(si);
Willy Tarreau103197d2014-11-28 15:26:12 +0100841 req->flags |= CF_WRITE_TIMEOUT;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100842 if (!si->err_type)
843 si->err_type = SI_ET_QUEUE_TO;
844 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100845 if (s->srv_error)
846 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100847 return;
848 }
849
850 /* Connection remains in queue, check if we have to abort it */
Willy Tarreau103197d2014-11-28 15:26:12 +0100851 if ((req->flags & (CF_READ_ERROR)) ||
852 ((req->flags & CF_SHUTW_NOW) && /* empty and client aborted */
853 (channel_is_empty(req) || s->be->options & PR_O_ABRT_CLOSE))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100854 /* give up */
855 si->exp = TICK_ETERNITY;
856 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau73b013b2012-05-21 16:31:45 +0200857 si_shutr(si);
858 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100859 si->err_type |= SI_ET_QUEUE_ABRT;
860 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100861 if (s->srv_error)
862 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100863 return;
864 }
865
866 /* Nothing changed */
867 return;
868 }
869 else if (si->state == SI_ST_TAR) {
870 /* Connection request might be aborted */
Willy Tarreau103197d2014-11-28 15:26:12 +0100871 if ((req->flags & (CF_READ_ERROR)) ||
872 ((req->flags & CF_SHUTW_NOW) && /* empty and client aborted */
873 (channel_is_empty(req) || s->be->options & PR_O_ABRT_CLOSE))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100874 /* give up */
875 si->exp = TICK_ETERNITY;
Willy Tarreau73b013b2012-05-21 16:31:45 +0200876 si_shutr(si);
877 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100878 si->err_type |= SI_ET_CONN_ABRT;
879 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100880 if (s->srv_error)
881 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100882 return;
883 }
884
885 if (!(si->flags & SI_FL_EXP))
886 return; /* still in turn-around */
887
888 si->exp = TICK_ETERNITY;
889
Willy Tarreau87b09662015-04-03 00:22:06 +0200890 /* we keep trying on the same server as long as the stream is
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100891 * marked "assigned".
892 * FIXME: Should we force a redispatch attempt when the server is down ?
893 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200894 if (s->flags & SF_ASSIGNED)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100895 si->state = SI_ST_ASS;
896 else
897 si->state = SI_ST_REQ;
898 return;
899 }
900}
901
Willy Tarreau87b09662015-04-03 00:22:06 +0200902/* Set correct stream termination flags in case no analyser has done it. It
Simon Hormandec5be42011-06-08 09:19:07 +0900903 * also counts a failed request if the server state has not reached the request
904 * stage.
905 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200906static void sess_set_term_flags(struct stream *s)
Simon Hormandec5be42011-06-08 09:19:07 +0900907{
Willy Tarreaue7dff022015-04-03 01:14:29 +0200908 if (!(s->flags & SF_FINST_MASK)) {
Simon Hormandec5be42011-06-08 09:19:07 +0900909 if (s->si[1].state < SI_ST_REQ) {
910
Willy Tarreaud0d8da92015-04-04 02:10:38 +0200911 strm_fe(s)->fe_counters.failed_req++;
912 if (strm_li(s)->counters)
913 strm_li(s)->counters->failed_req++;
Simon Hormandec5be42011-06-08 09:19:07 +0900914
Willy Tarreaue7dff022015-04-03 01:14:29 +0200915 s->flags |= SF_FINST_R;
Simon Hormandec5be42011-06-08 09:19:07 +0900916 }
917 else if (s->si[1].state == SI_ST_QUE)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200918 s->flags |= SF_FINST_Q;
Simon Hormandec5be42011-06-08 09:19:07 +0900919 else if (s->si[1].state < SI_ST_EST)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200920 s->flags |= SF_FINST_C;
Simon Hormandec5be42011-06-08 09:19:07 +0900921 else if (s->si[1].state == SI_ST_EST || s->si[1].prev_state == SI_ST_EST)
Willy Tarreaue7dff022015-04-03 01:14:29 +0200922 s->flags |= SF_FINST_D;
Simon Hormandec5be42011-06-08 09:19:07 +0900923 else
Willy Tarreaue7dff022015-04-03 01:14:29 +0200924 s->flags |= SF_FINST_L;
Simon Hormandec5be42011-06-08 09:19:07 +0900925 }
926}
927
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100928/* This function initiates a server connection request on a stream interface
Willy Tarreaud84fb5e2013-11-30 09:06:53 +0100929 * already in SI_ST_REQ state. Upon success, the state goes to SI_ST_ASS for
930 * a real connection to a server, indicating that a server has been assigned,
931 * or SI_ST_EST for a successful connection to an applet. It may also return
932 * SI_ST_QUE, or SI_ST_CLO upon error.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100933 */
Willy Tarreau87b09662015-04-03 00:22:06 +0200934static void sess_prepare_conn_req(struct stream *s)
Willy Tarreau02d6cfc2012-03-01 18:19:58 +0100935{
Willy Tarreau7b8c4f92014-11-28 15:15:44 +0100936 struct stream_interface *si = &s->si[1];
937
Willy Tarreau02d6cfc2012-03-01 18:19:58 +0100938 DPRINTF(stderr,"[%u] %s: sess=%p rq=%p, rp=%p, exp(r,w)=%u,%u rqf=%08x rpf=%08x rqh=%d rqt=%d rph=%d rpt=%d cs=%d ss=%d\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100939 now_ms, __FUNCTION__,
940 s,
CJ Ess6eac32e2015-05-02 16:35:24 -0400941 &s->req, &s->res,
Willy Tarreau22ec1ea2014-11-27 20:45:39 +0100942 s->req.rex, s->res.wex,
943 s->req.flags, s->res.flags,
CJ Ess6eac32e2015-05-02 16:35:24 -0400944 s->req.buf->i, s->req.buf->o, s->res.buf->i, s->res.buf->o, s->si[0].state, s->si[1].state);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100945
946 if (si->state != SI_ST_REQ)
947 return;
948
Willy Tarreaud84fb5e2013-11-30 09:06:53 +0100949 if (unlikely(obj_type(s->target) == OBJ_TYPE_APPLET)) {
950 /* the applet directly goes to the EST state */
Willy Tarreau4384ddf2013-12-01 12:25:52 +0100951 struct appctx *appctx = objt_appctx(si->end);
952
953 if (!appctx || appctx->applet != __objt_applet(s->target))
954 appctx = stream_int_register_handler(si, objt_applet(s->target));
955
956 if (!appctx) {
957 /* No more memory, let's immediately abort. Force the
958 * error code to ignore the ERR_LOCAL which is not a
959 * real error.
960 */
Willy Tarreaue7dff022015-04-03 01:14:29 +0200961 s->flags &= ~(SF_ERR_MASK | SF_FINST_MASK);
Willy Tarreau4384ddf2013-12-01 12:25:52 +0100962
963 si_shutr(si);
964 si_shutw(si);
Willy Tarreau103197d2014-11-28 15:26:12 +0100965 s->req.flags |= CF_WRITE_ERROR;
Willy Tarreau6bbb2f62013-12-09 17:14:23 +0100966 si->err_type = SI_ET_CONN_RES;
Willy Tarreau4384ddf2013-12-01 12:25:52 +0100967 si->state = SI_ST_CLO;
968 if (s->srv_error)
969 s->srv_error(s, si);
970 return;
971 }
972
Willy Tarreaud84fb5e2013-11-30 09:06:53 +0100973 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreaud84fb5e2013-11-30 09:06:53 +0100974 si->state = SI_ST_EST;
975 si->err_type = SI_ET_NONE;
Willy Tarreaub9a551e2014-04-23 00:35:17 +0200976 be_set_sess_last(s->be);
Willy Tarreaufac4bd12013-11-30 09:21:49 +0100977 /* let sess_establish() finish the job */
Willy Tarreaud84fb5e2013-11-30 09:06:53 +0100978 return;
979 }
980
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100981 /* Try to assign a server */
982 if (srv_redispatch_connect(s) != 0) {
983 /* We did not get a server. Either we queued the
984 * connection request, or we encountered an error.
985 */
986 if (si->state == SI_ST_QUE)
987 return;
988
989 /* we did not get any server, let's check the cause */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200990 si_shutr(si);
991 si_shutw(si);
Willy Tarreau103197d2014-11-28 15:26:12 +0100992 s->req.flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100993 if (!si->err_type)
994 si->err_type = SI_ET_CONN_OTHER;
995 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100996 if (s->srv_error)
997 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100998 return;
999 }
1000
1001 /* The server is assigned */
1002 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1003 si->state = SI_ST_ASS;
Willy Tarreaub9a551e2014-04-23 00:35:17 +02001004 be_set_sess_last(s->be);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001005}
1006
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001007/* This stream analyser checks the switching rules and changes the backend
Willy Tarreau4de91492010-01-22 19:10:05 +01001008 * if appropriate. The default_backend rule is also considered, then the
1009 * target backend's forced persistence rules are also evaluated last if any.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001010 * It returns 1 if the processing can continue on next analysers, or zero if it
1011 * either needs more data or wants to immediately abort the request.
1012 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001013static int process_switching_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001014{
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001015 struct persist_rule *prst_rule;
Willy Tarreau192252e2015-04-04 01:47:55 +02001016 struct session *sess = s->sess;
1017 struct proxy *fe = sess->fe;
Willy Tarreau4de91492010-01-22 19:10:05 +01001018
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001019 req->analysers &= ~an_bit;
1020 req->analyse_exp = TICK_ETERNITY;
1021
Willy Tarreau87b09662015-04-03 00:22:06 +02001022 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%d analysers=%02x\n",
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001023 now_ms, __FUNCTION__,
1024 s,
1025 req,
1026 req->rex, req->wex,
1027 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001028 req->buf->i,
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001029 req->analysers);
1030
1031 /* now check whether we have some switching rules for this request */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001032 if (!(s->flags & SF_BE_ASSIGNED)) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001033 struct switching_rule *rule;
1034
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001035 list_for_each_entry(rule, &fe->switching_rules, list) {
Willy Tarreauf51658d2014-04-23 01:21:56 +02001036 int ret = 1;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001037
Willy Tarreauf51658d2014-04-23 01:21:56 +02001038 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001039 ret = acl_exec_cond(rule->cond, fe, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001040 ret = acl_pass(ret);
1041 if (rule->cond->pol == ACL_COND_UNLESS)
1042 ret = !ret;
1043 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001044
1045 if (ret) {
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001046 /* If the backend name is dynamic, try to resolve the name.
1047 * If we can't resolve the name, or if any error occurs, break
1048 * the loop and fallback to the default backend.
1049 */
1050 struct proxy *backend;
1051
1052 if (rule->dynamic) {
1053 struct chunk *tmp = get_trash_chunk();
1054 if (!build_logline(s, tmp->str, tmp->size, &rule->be.expr))
1055 break;
Willy Tarreau9e0bb102015-05-26 11:24:42 +02001056 backend = proxy_be_by_name(tmp->str);
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001057 if (!backend)
1058 break;
1059 }
1060 else
1061 backend = rule->be.backend;
1062
Willy Tarreau87b09662015-04-03 00:22:06 +02001063 if (!stream_set_backend(s, backend))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001064 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001065 break;
1066 }
1067 }
1068
1069 /* To ensure correct connection accounting on the backend, we
1070 * have to assign one if it was not set (eg: a listen). This
1071 * measure also takes care of correctly setting the default
1072 * backend if any.
1073 */
Willy Tarreaue7dff022015-04-03 01:14:29 +02001074 if (!(s->flags & SF_BE_ASSIGNED))
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001075 if (!stream_set_backend(s, fe->defbe.be ? fe->defbe.be : s->be))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001076 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001077 }
1078
Willy Tarreaufb356202010-08-03 14:02:05 +02001079 /* 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 +02001080 if (fe == s->be) {
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001081 s->req.analysers &= ~AN_REQ_INSPECT_BE;
1082 s->req.analysers &= ~AN_REQ_HTTP_PROCESS_BE;
Willy Tarreaufb356202010-08-03 14:02:05 +02001083 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001084
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001085 /* 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 +02001086 * persistence rule, and report that in the stream.
Willy Tarreau4de91492010-01-22 19:10:05 +01001087 */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001088 list_for_each_entry(prst_rule, &s->be->persist_rules, list) {
Willy Tarreau4de91492010-01-22 19:10:05 +01001089 int ret = 1;
1090
1091 if (prst_rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001092 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 +01001093 ret = acl_pass(ret);
1094 if (prst_rule->cond->pol == ACL_COND_UNLESS)
1095 ret = !ret;
1096 }
1097
1098 if (ret) {
1099 /* no rule, or the rule matches */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001100 if (prst_rule->type == PERSIST_TYPE_FORCE) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001101 s->flags |= SF_FORCE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001102 } else {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001103 s->flags |= SF_IGNORE_PRST;
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001104 }
Willy Tarreau4de91492010-01-22 19:10:05 +01001105 break;
1106 }
1107 }
1108
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001109 return 1;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001110
1111 sw_failed:
1112 /* immediately abort this request in case of allocation failure */
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001113 channel_abort(&s->req);
1114 channel_abort(&s->res);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001115
Willy Tarreaue7dff022015-04-03 01:14:29 +02001116 if (!(s->flags & SF_ERR_MASK))
1117 s->flags |= SF_ERR_RESOURCE;
1118 if (!(s->flags & SF_FINST_MASK))
1119 s->flags |= SF_FINST_R;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001120
Willy Tarreaueee5b512015-04-03 23:46:31 +02001121 if (s->txn)
1122 s->txn->status = 500;
Willy Tarreau22ec1ea2014-11-27 20:45:39 +01001123 s->req.analysers = 0;
1124 s->req.analyse_exp = TICK_ETERNITY;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001125 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001126}
1127
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001128/* This stream analyser works on a request. It applies all use-server rules on
1129 * it then returns 1. The data must already be present in the buffer otherwise
1130 * they won't match. It always returns 1.
1131 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001132static int process_server_rules(struct stream *s, struct channel *req, int an_bit)
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001133{
1134 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001135 struct session *sess = s->sess;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001136 struct server_rule *rule;
1137
Willy Tarreau87b09662015-04-03 00:22:06 +02001138 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bl=%d analysers=%02x\n",
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001139 now_ms, __FUNCTION__,
1140 s,
1141 req,
1142 req->rex, req->wex,
1143 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001144 req->buf->i + req->buf->o,
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001145 req->analysers);
1146
Willy Tarreaue7dff022015-04-03 01:14:29 +02001147 if (!(s->flags & SF_ASSIGNED)) {
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001148 list_for_each_entry(rule, &px->server_rules, list) {
1149 int ret;
1150
Willy Tarreau192252e2015-04-04 01:47:55 +02001151 ret = acl_exec_cond(rule->cond, s->be, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001152 ret = acl_pass(ret);
1153 if (rule->cond->pol == ACL_COND_UNLESS)
1154 ret = !ret;
1155
1156 if (ret) {
1157 struct server *srv = rule->srv.ptr;
1158
Willy Tarreau892337c2014-05-13 23:41:20 +02001159 if ((srv->state != SRV_ST_STOPPED) ||
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001160 (px->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +02001161 (s->flags & SF_FORCE_PRST)) {
1162 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001163 s->target = &srv->obj_type;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001164 break;
1165 }
1166 /* if the server is not UP, let's go on with next rules
1167 * just in case another one is suited.
1168 */
1169 }
1170 }
1171 }
1172
1173 req->analysers &= ~an_bit;
1174 req->analyse_exp = TICK_ETERNITY;
1175 return 1;
1176}
1177
Emeric Brun1d33b292010-01-04 15:47:17 +01001178/* This stream analyser works on a request. It applies all sticking rules on
1179 * it then returns 1. The data must already be present in the buffer otherwise
1180 * they won't match. It always returns 1.
1181 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001182static int process_sticking_rules(struct stream *s, struct channel *req, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001183{
1184 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001185 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001186 struct sticking_rule *rule;
1187
Willy Tarreau87b09662015-04-03 00:22:06 +02001188 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%d analysers=%02x\n",
Emeric Brun1d33b292010-01-04 15:47:17 +01001189 now_ms, __FUNCTION__,
1190 s,
1191 req,
1192 req->rex, req->wex,
1193 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001194 req->buf->i,
Emeric Brun1d33b292010-01-04 15:47:17 +01001195 req->analysers);
1196
1197 list_for_each_entry(rule, &px->sticking_rules, list) {
1198 int ret = 1 ;
1199 int i;
1200
Willy Tarreau9667a802013-12-09 12:52:13 +01001201 /* Only the first stick store-request of each table is applied
1202 * and other ones are ignored. The purpose is to allow complex
1203 * configurations which look for multiple entries by decreasing
1204 * order of precision and to stop at the first which matches.
1205 * An example could be a store of the IP address from an HTTP
1206 * header first, then from the source if not found.
1207 */
Emeric Brun1d33b292010-01-04 15:47:17 +01001208 for (i = 0; i < s->store_count; i++) {
1209 if (rule->table.t == s->store[i].table)
1210 break;
1211 }
1212
1213 if (i != s->store_count)
1214 continue;
1215
1216 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001217 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001218 ret = acl_pass(ret);
1219 if (rule->cond->pol == ACL_COND_UNLESS)
1220 ret = !ret;
1221 }
1222
1223 if (ret) {
1224 struct stktable_key *key;
1225
Willy Tarreau192252e2015-04-04 01:47:55 +02001226 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 +01001227 if (!key)
1228 continue;
1229
1230 if (rule->flags & STK_IS_MATCH) {
1231 struct stksess *ts;
1232
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001233 if ((ts = stktable_lookup_key(rule->table.t, key)) != NULL) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001234 if (!(s->flags & SF_ASSIGNED)) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001235 struct eb32_node *node;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001236 void *ptr;
Emeric Brun1d33b292010-01-04 15:47:17 +01001237
1238 /* srv found in table */
Willy Tarreau13c29de2010-06-06 16:40:39 +02001239 ptr = stktable_data_ptr(rule->table.t, ts, STKTABLE_DT_SERVER_ID);
1240 node = eb32_lookup(&px->conf.used_server_id, stktable_data_cast(ptr, server_id));
Emeric Brun1d33b292010-01-04 15:47:17 +01001241 if (node) {
1242 struct server *srv;
1243
1244 srv = container_of(node, struct server, conf.id);
Willy Tarreau892337c2014-05-13 23:41:20 +02001245 if ((srv->state != SRV_ST_STOPPED) ||
Willy Tarreau4de91492010-01-22 19:10:05 +01001246 (px->options & PR_O_PERSIST) ||
Willy Tarreaue7dff022015-04-03 01:14:29 +02001247 (s->flags & SF_FORCE_PRST)) {
1248 s->flags |= SF_DIRECT | SF_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001249 s->target = &srv->obj_type;
Emeric Brun1d33b292010-01-04 15:47:17 +01001250 }
1251 }
1252 }
Emeric Brun85e77c72010-09-23 18:16:52 +02001253 stktable_touch(rule->table.t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001254 }
1255 }
1256 if (rule->flags & STK_IS_STORE) {
1257 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
1258 struct stksess *ts;
1259
1260 ts = stksess_new(rule->table.t, key);
1261 if (ts) {
1262 s->store[s->store_count].table = rule->table.t;
1263 s->store[s->store_count++].ts = ts;
1264 }
1265 }
1266 }
1267 }
1268 }
1269
1270 req->analysers &= ~an_bit;
1271 req->analyse_exp = TICK_ETERNITY;
1272 return 1;
1273}
1274
1275/* This stream analyser works on a response. It applies all store rules on it
1276 * then returns 1. The data must already be present in the buffer otherwise
1277 * they won't match. It always returns 1.
1278 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001279static int process_store_rules(struct stream *s, struct channel *rep, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001280{
1281 struct proxy *px = s->be;
Willy Tarreau192252e2015-04-04 01:47:55 +02001282 struct session *sess = s->sess;
Emeric Brun1d33b292010-01-04 15:47:17 +01001283 struct sticking_rule *rule;
1284 int i;
Willy Tarreau9667a802013-12-09 12:52:13 +01001285 int nbreq = s->store_count;
Emeric Brun1d33b292010-01-04 15:47:17 +01001286
Willy Tarreau87b09662015-04-03 00:22:06 +02001287 DPRINTF(stderr,"[%u] %s: stream=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%d analysers=%02x\n",
Emeric Brun1d33b292010-01-04 15:47:17 +01001288 now_ms, __FUNCTION__,
1289 s,
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001290 rep,
1291 rep->rex, rep->wex,
1292 rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001293 rep->buf->i,
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001294 rep->analysers);
Emeric Brun1d33b292010-01-04 15:47:17 +01001295
1296 list_for_each_entry(rule, &px->storersp_rules, list) {
1297 int ret = 1 ;
Emeric Brun1d33b292010-01-04 15:47:17 +01001298
Willy Tarreau9667a802013-12-09 12:52:13 +01001299 /* Only the first stick store-response of each table is applied
1300 * and other ones are ignored. The purpose is to allow complex
1301 * configurations which look for multiple entries by decreasing
1302 * order of precision and to stop at the first which matches.
1303 * An example could be a store of a set-cookie value, with a
1304 * fallback to a parameter found in a 302 redirect.
1305 *
1306 * The store-response rules are not allowed to override the
1307 * store-request rules for the same table, but they may coexist.
1308 * Thus we can have up to one store-request entry and one store-
1309 * response entry for the same table at any time.
1310 */
1311 for (i = nbreq; i < s->store_count; i++) {
1312 if (rule->table.t == s->store[i].table)
1313 break;
1314 }
1315
1316 /* skip existing entries for this table */
1317 if (i < s->store_count)
1318 continue;
1319
Emeric Brun1d33b292010-01-04 15:47:17 +01001320 if (rule->cond) {
Willy Tarreau192252e2015-04-04 01:47:55 +02001321 ret = acl_exec_cond(rule->cond, px, sess, s, SMP_OPT_DIR_RES|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001322 ret = acl_pass(ret);
1323 if (rule->cond->pol == ACL_COND_UNLESS)
1324 ret = !ret;
1325 }
1326
1327 if (ret) {
1328 struct stktable_key *key;
1329
Willy Tarreau192252e2015-04-04 01:47:55 +02001330 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 +01001331 if (!key)
1332 continue;
1333
Willy Tarreau37e340c2013-12-06 23:05:21 +01001334 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001335 struct stksess *ts;
1336
1337 ts = stksess_new(rule->table.t, key);
1338 if (ts) {
1339 s->store[s->store_count].table = rule->table.t;
Emeric Brun1d33b292010-01-04 15:47:17 +01001340 s->store[s->store_count++].ts = ts;
1341 }
1342 }
1343 }
1344 }
1345
1346 /* process store request and store response */
1347 for (i = 0; i < s->store_count; i++) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001348 struct stksess *ts;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001349 void *ptr;
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001350
Willy Tarreauc93cd162014-05-13 15:54:22 +02001351 if (objt_server(s->target) && objt_server(s->target)->flags & SRV_F_NON_STICK) {
Simon Hormanfa461682011-06-25 09:39:49 +09001352 stksess_free(s->store[i].table, s->store[i].ts);
1353 s->store[i].ts = NULL;
1354 continue;
1355 }
1356
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001357 ts = stktable_lookup(s->store[i].table, s->store[i].ts);
1358 if (ts) {
1359 /* the entry already existed, we can free ours */
Emeric Brun85e77c72010-09-23 18:16:52 +02001360 stktable_touch(s->store[i].table, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001361 stksess_free(s->store[i].table, s->store[i].ts);
Emeric Brun1d33b292010-01-04 15:47:17 +01001362 }
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001363 else
Emeric Brun85e77c72010-09-23 18:16:52 +02001364 ts = stktable_store(s->store[i].table, s->store[i].ts, 1);
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001365
1366 s->store[i].ts = NULL;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001367 ptr = stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_ID);
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001368 stktable_data_cast(ptr, server_id) = objt_server(s->target)->puid;
Emeric Brun1d33b292010-01-04 15:47:17 +01001369 }
Willy Tarreau2a164ee2010-06-18 09:57:45 +02001370 s->store_count = 0; /* everything is stored */
Emeric Brun1d33b292010-01-04 15:47:17 +01001371
1372 rep->analysers &= ~an_bit;
1373 rep->analyse_exp = TICK_ETERNITY;
1374 return 1;
1375}
1376
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001377/* This macro is very specific to the function below. See the comments in
Willy Tarreau87b09662015-04-03 00:22:06 +02001378 * process_stream() below to understand the logic and the tests.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001379 */
1380#define UPDATE_ANALYSERS(real, list, back, flag) { \
1381 list = (((list) & ~(flag)) | ~(back)) & (real); \
1382 back = real; \
1383 if (!(list)) \
1384 break; \
1385 if (((list) ^ ((list) & ((list) - 1))) < (flag)) \
1386 continue; \
1387}
1388
Willy Tarreau87b09662015-04-03 00:22:06 +02001389/* Processes the client, server, request and response jobs of a stream task,
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001390 * then puts it back to the wait queue in a clean state, or cleans up its
1391 * resources if it must be deleted. Returns in <next> the date the task wants
1392 * to be woken up, or TICK_ETERNITY. In order not to call all functions for
1393 * nothing too many times, the request and response buffers flags are monitored
1394 * and each function is called only if at least another function has changed at
1395 * least one flag it is interested in.
1396 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001397struct task *process_stream(struct task *t)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001398{
Willy Tarreau827aee92011-03-10 16:55:02 +01001399 struct server *srv;
Willy Tarreau87b09662015-04-03 00:22:06 +02001400 struct stream *s = t->context;
Willy Tarreaufb0afa72015-04-03 14:46:27 +02001401 struct session *sess = s->sess;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001402 unsigned int rqf_last, rpf_last;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001403 unsigned int rq_prod_last, rq_cons_last;
1404 unsigned int rp_cons_last, rp_prod_last;
Willy Tarreau576507f2010-01-07 00:09:04 +01001405 unsigned int req_ana_back;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001406 struct channel *req, *res;
1407 struct stream_interface *si_f, *si_b;
1408
1409 req = &s->req;
1410 res = &s->res;
1411
1412 si_f = &s->si[0];
1413 si_b = &s->si[1];
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001414
1415 //DPRINTF(stderr, "%s:%d: cs=%d ss=%d(%d) rqf=0x%08x rpf=0x%08x\n", __FUNCTION__, __LINE__,
Willy Tarreau8f128b42014-11-28 15:07:47 +01001416 // si_f->state, si_b->state, si_b->err_type, req->flags, res->flags);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001417
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001418 /* this data may be no longer valid, clear it */
Willy Tarreaueee5b512015-04-03 23:46:31 +02001419 if (s->txn)
1420 memset(&s->txn->auth, 0, sizeof(s->txn->auth));
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001421
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02001422 /* This flag must explicitly be set every time */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001423 req->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
1424 res->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001425
1426 /* Keep a copy of req/rep flags so that we can detect shutdowns */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001427 rqf_last = req->flags & ~CF_MASK_ANALYSER;
1428 rpf_last = res->flags & ~CF_MASK_ANALYSER;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001429
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001430 /* we don't want the stream interface functions to recursively wake us up */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001431 si_f->flags |= SI_FL_DONT_WAKE;
1432 si_b->flags |= SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001433
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001434 /* 1a: Check for low level timeouts if needed. We just set a flag on
1435 * stream interfaces when their timeouts have expired.
1436 */
1437 if (unlikely(t->state & TASK_WOKEN_TIMER)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001438 stream_int_check_timeouts(si_f);
1439 stream_int_check_timeouts(si_b);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001440
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001441 /* check channel timeouts, and close the corresponding stream interfaces
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001442 * for future reads or writes. Note: this will also concern upper layers
1443 * but we do not touch any other flag. We must be careful and correctly
1444 * detect state changes when calling them.
1445 */
1446
Willy Tarreau8f128b42014-11-28 15:07:47 +01001447 channel_check_timeouts(req);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001448
Willy Tarreau8f128b42014-11-28 15:07:47 +01001449 if (unlikely((req->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1450 si_b->flags |= SI_FL_NOLINGER;
1451 si_shutw(si_b);
Willy Tarreau14641402009-12-29 14:49:56 +01001452 }
1453
Willy Tarreau8f128b42014-11-28 15:07:47 +01001454 if (unlikely((req->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1455 if (si_f->flags & SI_FL_NOHALF)
1456 si_f->flags |= SI_FL_NOLINGER;
1457 si_shutr(si_f);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001458 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001459
Willy Tarreau8f128b42014-11-28 15:07:47 +01001460 channel_check_timeouts(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001461
Willy Tarreau8f128b42014-11-28 15:07:47 +01001462 if (unlikely((res->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
1463 si_f->flags |= SI_FL_NOLINGER;
1464 si_shutw(si_f);
Willy Tarreau14641402009-12-29 14:49:56 +01001465 }
1466
Willy Tarreau8f128b42014-11-28 15:07:47 +01001467 if (unlikely((res->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
1468 if (si_b->flags & SI_FL_NOHALF)
1469 si_b->flags |= SI_FL_NOLINGER;
1470 si_shutr(si_b);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001471 }
Willy Tarreau798f4322012-11-08 14:49:17 +01001472
1473 /* Once in a while we're woken up because the task expires. But
1474 * this does not necessarily mean that a timeout has been reached.
Willy Tarreau87b09662015-04-03 00:22:06 +02001475 * So let's not run a whole stream processing if only an expiration
Willy Tarreau798f4322012-11-08 14:49:17 +01001476 * timeout needs to be refreshed.
1477 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001478 if (!((req->flags | res->flags) &
Willy Tarreau798f4322012-11-08 14:49:17 +01001479 (CF_SHUTR|CF_READ_ACTIVITY|CF_READ_TIMEOUT|CF_SHUTW|
1480 CF_WRITE_ACTIVITY|CF_WRITE_TIMEOUT|CF_ANA_TIMEOUT)) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01001481 !((si_f->flags | si_b->flags) & (SI_FL_EXP|SI_FL_ERR)) &&
Willy Tarreau798f4322012-11-08 14:49:17 +01001482 ((t->state & TASK_WOKEN_ANY) == TASK_WOKEN_TIMER))
1483 goto update_exp_and_leave;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001484 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001485
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001486 /* below we may emit error messages so we have to ensure that we have
1487 * our buffers properly allocated.
1488 */
Willy Tarreau87b09662015-04-03 00:22:06 +02001489 if (!stream_alloc_work_buffer(s)) {
Willy Tarreau10fc09e2014-11-25 19:46:36 +01001490 /* No buffer available, we've been subscribed to the list of
1491 * buffer waiters, let's wait for our turn.
1492 */
1493 goto update_exp_and_leave;
1494 }
1495
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001496 /* 1b: check for low-level errors reported at the stream interface.
1497 * First we check if it's a retryable error (in which case we don't
1498 * want to tell the buffer). Otherwise we report the error one level
1499 * upper by setting flags into the buffers. Note that the side towards
1500 * the client cannot have connect (hence retryable) errors. Also, the
1501 * connection setup code must be able to deal with any type of abort.
1502 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001503 srv = objt_server(s->target);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001504 if (unlikely(si_f->flags & SI_FL_ERR)) {
1505 if (si_f->state == SI_ST_EST || si_f->state == SI_ST_DIS) {
1506 si_shutr(si_f);
1507 si_shutw(si_f);
1508 stream_int_report_error(si_f);
1509 if (!(req->analysers) && !(res->analysers)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001510 s->be->be_counters.cli_aborts++;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001511 sess->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001512 if (srv)
1513 srv->counters.cli_aborts++;
Willy Tarreaue7dff022015-04-03 01:14:29 +02001514 if (!(s->flags & SF_ERR_MASK))
1515 s->flags |= SF_ERR_CLICL;
1516 if (!(s->flags & SF_FINST_MASK))
1517 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001518 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001519 }
1520 }
1521
Willy Tarreau8f128b42014-11-28 15:07:47 +01001522 if (unlikely(si_b->flags & SI_FL_ERR)) {
1523 if (si_b->state == SI_ST_EST || si_b->state == SI_ST_DIS) {
1524 si_shutr(si_b);
1525 si_shutw(si_b);
1526 stream_int_report_error(si_b);
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001527 s->be->be_counters.failed_resp++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001528 if (srv)
1529 srv->counters.failed_resp++;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001530 if (!(req->analysers) && !(res->analysers)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001531 s->be->be_counters.srv_aborts++;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001532 sess->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001533 if (srv)
1534 srv->counters.srv_aborts++;
Willy Tarreaue7dff022015-04-03 01:14:29 +02001535 if (!(s->flags & SF_ERR_MASK))
1536 s->flags |= SF_ERR_SRVCL;
1537 if (!(s->flags & SF_FINST_MASK))
1538 s->flags |= SF_FINST_D;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001539 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001540 }
1541 /* note: maybe we should process connection errors here ? */
1542 }
1543
Willy Tarreau8f128b42014-11-28 15:07:47 +01001544 if (si_b->state == SI_ST_CON) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001545 /* we were trying to establish a connection on the server side,
1546 * maybe it succeeded, maybe it failed, maybe we timed out, ...
1547 */
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01001548 if (unlikely(!sess_update_st_con_tcp(s)))
1549 sess_update_st_cer(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01001550 else if (si_b->state == SI_ST_EST)
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01001551 sess_establish(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001552
1553 /* state is now one of SI_ST_CON (still in progress), SI_ST_EST
1554 * (established), SI_ST_DIS (abort), SI_ST_CLO (last error),
1555 * SI_ST_ASS/SI_ST_TAR/SI_ST_REQ for retryable errors.
1556 */
1557 }
1558
Willy Tarreau8f128b42014-11-28 15:07:47 +01001559 rq_prod_last = si_f->state;
1560 rq_cons_last = si_b->state;
1561 rp_cons_last = si_f->state;
1562 rp_prod_last = si_b->state;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001563
1564 resync_stream_interface:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001565 /* Check for connection closure */
1566
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001567 DPRINTF(stderr,
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001568 "[%u] %s:%d: task=%p s=%p, sfl=0x%08x, rq=%p, rp=%p, exp(r,w)=%u,%u rqf=%08x rpf=%08x rqh=%d rqt=%d rph=%d rpt=%d cs=%d ss=%d, cet=0x%x set=0x%x retr=%d\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001569 now_ms, __FUNCTION__, __LINE__,
1570 t,
1571 s, s->flags,
Willy Tarreau8f128b42014-11-28 15:07:47 +01001572 req, res,
1573 req->rex, res->wex,
1574 req->flags, res->flags,
1575 req->buf->i, req->buf->o, res->buf->i, res->buf->o, si_f->state, si_b->state,
1576 si_f->err_type, si_b->err_type,
1577 si_b->conn_retries);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001578
1579 /* nothing special to be done on client side */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001580 if (unlikely(si_f->state == SI_ST_DIS))
1581 si_f->state = SI_ST_CLO;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001582
1583 /* When a server-side connection is released, we have to count it and
1584 * check for pending connections on this server.
1585 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001586 if (unlikely(si_b->state == SI_ST_DIS)) {
1587 si_b->state = SI_ST_CLO;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001588 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01001589 if (srv) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02001590 if (s->flags & SF_CURR_SESS) {
1591 s->flags &= ~SF_CURR_SESS;
Willy Tarreau827aee92011-03-10 16:55:02 +01001592 srv->cur_sess--;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001593 }
1594 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001595 if (may_dequeue_tasks(srv, s->be))
1596 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001597 }
1598 }
1599
1600 /*
1601 * Note: of the transient states (REQ, CER, DIS), only REQ may remain
1602 * at this point.
1603 */
1604
Willy Tarreau0be0ef92009-03-08 19:20:25 +01001605 resync_request:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001606 /* Analyse request */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001607 if (((req->flags & ~rqf_last) & CF_MASK_ANALYSER) ||
1608 ((req->flags ^ rqf_last) & CF_MASK_STATIC) ||
1609 si_f->state != rq_prod_last ||
1610 si_b->state != rq_cons_last ||
Thierry FOURNIER2e05a8c2014-11-24 14:49:56 +01001611 s->task->state & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001612 unsigned int flags = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001613
Willy Tarreau8f128b42014-11-28 15:07:47 +01001614 if (si_f->state >= SI_ST_EST) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001615 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001616 unsigned int ana_list;
1617 unsigned int ana_back;
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001618
Willy Tarreau90deb182010-01-07 00:20:41 +01001619 /* it's up to the analysers to stop new connections,
1620 * disable reading or closing. Note: if an analyser
1621 * disables any of these bits, it is responsible for
1622 * enabling them again when it disables itself, so
1623 * that other analysers are called in similar conditions.
1624 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001625 channel_auto_read(req);
1626 channel_auto_connect(req);
1627 channel_auto_close(req);
Willy Tarreauedcf6682008-11-30 23:15:34 +01001628
1629 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01001630 * req->analysers, following the bit order from LSB
Willy Tarreauedcf6682008-11-30 23:15:34 +01001631 * to MSB. The analysers must remove themselves from
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001632 * the list when not needed. Any analyser may return 0
1633 * to break out of the loop, either because of missing
1634 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02001635 * kill the stream. We loop at least once through each
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001636 * analyser, and we may loop again if other analysers
1637 * are added in the middle.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001638 *
1639 * We build a list of analysers to run. We evaluate all
1640 * of these analysers in the order of the lower bit to
1641 * the higher bit. This ordering is very important.
1642 * An analyser will often add/remove other analysers,
1643 * including itself. Any changes to itself have no effect
1644 * on the loop. If it removes any other analysers, we
1645 * want those analysers not to be called anymore during
1646 * this loop. If it adds an analyser that is located
1647 * after itself, we want it to be scheduled for being
1648 * processed during the loop. If it adds an analyser
1649 * which is located before it, we want it to switch to
1650 * it immediately, even if it has already been called
1651 * once but removed since.
1652 *
1653 * In order to achieve this, we compare the analyser
1654 * list after the call with a copy of it before the
1655 * call. The work list is fed with analyser bits that
1656 * appeared during the call. Then we compare previous
1657 * work list with the new one, and check the bits that
1658 * appeared. If the lowest of these bits is lower than
1659 * the current bit, it means we have enabled a previous
1660 * analyser and must immediately loop again.
Willy Tarreauedcf6682008-11-30 23:15:34 +01001661 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001662
Willy Tarreau8f128b42014-11-28 15:07:47 +01001663 ana_list = ana_back = req->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001664 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001665 /* Warning! ensure that analysers are always placed in ascending order! */
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001666
Willy Tarreaufb356202010-08-03 14:02:05 +02001667 if (ana_list & AN_REQ_INSPECT_FE) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001668 if (!tcp_inspect_request(s, req, AN_REQ_INSPECT_FE))
Willy Tarreauedcf6682008-11-30 23:15:34 +01001669 break;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001670 UPDATE_ANALYSERS(req->analysers, ana_list, ana_back, AN_REQ_INSPECT_FE);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001671 }
Willy Tarreauedcf6682008-11-30 23:15:34 +01001672
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001673 if (ana_list & AN_REQ_WAIT_HTTP) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001674 if (!http_wait_for_request(s, req, AN_REQ_WAIT_HTTP))
Willy Tarreaud787e662009-07-07 10:14:51 +02001675 break;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001676 UPDATE_ANALYSERS(req->analysers, ana_list, ana_back, AN_REQ_WAIT_HTTP);
Willy Tarreaud787e662009-07-07 10:14:51 +02001677 }
1678
Willy Tarreau748179e2015-05-01 21:52:31 +02001679 if (ana_list & AN_REQ_HTTP_BODY) {
1680 if (!http_wait_for_request_body(s, req, AN_REQ_HTTP_BODY))
1681 break;
1682 UPDATE_ANALYSERS(req->analysers, ana_list, ana_back, AN_REQ_HTTP_BODY);
1683 }
1684
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001685 if (ana_list & AN_REQ_HTTP_PROCESS_FE) {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001686 if (!http_process_req_common(s, req, AN_REQ_HTTP_PROCESS_FE, sess->fe))
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001687 break;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001688 UPDATE_ANALYSERS(req->analysers, ana_list, ana_back, AN_REQ_HTTP_PROCESS_FE);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001689 }
1690
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001691 if (ana_list & AN_REQ_SWITCHING_RULES) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001692 if (!process_switching_rules(s, req, AN_REQ_SWITCHING_RULES))
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001693 break;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001694 UPDATE_ANALYSERS(req->analysers, ana_list, ana_back, AN_REQ_SWITCHING_RULES);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001695 }
1696
Willy Tarreaufb356202010-08-03 14:02:05 +02001697 if (ana_list & AN_REQ_INSPECT_BE) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001698 if (!tcp_inspect_request(s, req, AN_REQ_INSPECT_BE))
Willy Tarreaufb356202010-08-03 14:02:05 +02001699 break;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001700 UPDATE_ANALYSERS(req->analysers, ana_list, ana_back, AN_REQ_INSPECT_BE);
Willy Tarreaufb356202010-08-03 14:02:05 +02001701 }
1702
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001703 if (ana_list & AN_REQ_HTTP_PROCESS_BE) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001704 if (!http_process_req_common(s, req, AN_REQ_HTTP_PROCESS_BE, s->be))
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001705 break;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001706 UPDATE_ANALYSERS(req->analysers, ana_list, ana_back, AN_REQ_HTTP_PROCESS_BE);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001707 }
1708
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001709 if (ana_list & AN_REQ_HTTP_TARPIT) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001710 if (!http_process_tarpit(s, req, AN_REQ_HTTP_TARPIT))
Willy Tarreau60b85b02008-11-30 23:28:40 +01001711 break;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001712 UPDATE_ANALYSERS(req->analysers, ana_list, ana_back, AN_REQ_HTTP_TARPIT);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001713 }
Willy Tarreau60b85b02008-11-30 23:28:40 +01001714
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001715 if (ana_list & AN_REQ_SRV_RULES) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001716 if (!process_server_rules(s, req, AN_REQ_SRV_RULES))
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001717 break;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001718 UPDATE_ANALYSERS(req->analysers, ana_list, ana_back, AN_REQ_SRV_RULES);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001719 }
1720
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001721 if (ana_list & AN_REQ_HTTP_INNER) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001722 if (!http_process_request(s, req, AN_REQ_HTTP_INNER))
Willy Tarreauc465fd72009-08-31 00:17:18 +02001723 break;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001724 UPDATE_ANALYSERS(req->analysers, ana_list, ana_back, AN_REQ_HTTP_INNER);
Willy Tarreauc465fd72009-08-31 00:17:18 +02001725 }
1726
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001727 if (ana_list & AN_REQ_PRST_RDP_COOKIE) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001728 if (!tcp_persist_rdp_cookie(s, req, AN_REQ_PRST_RDP_COOKIE))
Emeric Brun647caf12009-06-30 17:57:00 +02001729 break;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001730 UPDATE_ANALYSERS(req->analysers, ana_list, ana_back, AN_REQ_PRST_RDP_COOKIE);
Emeric Brun647caf12009-06-30 17:57:00 +02001731 }
Willy Tarreaud98cf932009-12-27 22:54:55 +01001732
Emeric Brun1d33b292010-01-04 15:47:17 +01001733 if (ana_list & AN_REQ_STICKING_RULES) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001734 if (!process_sticking_rules(s, req, AN_REQ_STICKING_RULES))
Emeric Brun1d33b292010-01-04 15:47:17 +01001735 break;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001736 UPDATE_ANALYSERS(req->analysers, ana_list, ana_back, AN_REQ_STICKING_RULES);
Emeric Brun1d33b292010-01-04 15:47:17 +01001737 }
1738
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001739 if (ana_list & AN_REQ_HTTP_XFER_BODY) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001740 if (!http_request_forward_body(s, req, AN_REQ_HTTP_XFER_BODY))
Willy Tarreaud98cf932009-12-27 22:54:55 +01001741 break;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001742 UPDATE_ANALYSERS(req->analysers, ana_list, ana_back, AN_REQ_HTTP_XFER_BODY);
Willy Tarreaud98cf932009-12-27 22:54:55 +01001743 }
Willy Tarreaue34070e2010-01-08 00:32:27 +01001744 break;
1745 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001746 }
Willy Tarreau84455332009-03-15 22:34:05 +01001747
Willy Tarreau8f128b42014-11-28 15:07:47 +01001748 rq_prod_last = si_f->state;
1749 rq_cons_last = si_b->state;
1750 req->flags &= ~CF_WAKE_ONCE;
1751 rqf_last = req->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001752
Willy Tarreau8f128b42014-11-28 15:07:47 +01001753 if ((req->flags ^ flags) & CF_MASK_STATIC)
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001754 goto resync_request;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001755 }
1756
Willy Tarreau576507f2010-01-07 00:09:04 +01001757 /* we'll monitor the request analysers while parsing the response,
1758 * because some response analysers may indirectly enable new request
1759 * analysers (eg: HTTP keep-alive).
1760 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001761 req_ana_back = req->analysers;
Willy Tarreau576507f2010-01-07 00:09:04 +01001762
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001763 resync_response:
1764 /* Analyse response */
1765
Willy Tarreau8f128b42014-11-28 15:07:47 +01001766 if (((res->flags & ~rpf_last) & CF_MASK_ANALYSER) ||
1767 (res->flags ^ rpf_last) & CF_MASK_STATIC ||
1768 si_f->state != rp_cons_last ||
1769 si_b->state != rp_prod_last ||
Thierry FOURNIER2e05a8c2014-11-24 14:49:56 +01001770 s->task->state & TASK_WOKEN_MSG) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001771 unsigned int flags = res->flags;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001772
Willy Tarreau8f128b42014-11-28 15:07:47 +01001773 if ((res->flags & CF_MASK_ANALYSER) &&
1774 (res->analysers & AN_REQ_ALL)) {
Willy Tarreau0499e352010-12-17 07:13:42 +01001775 /* Due to HTTP pipelining, the HTTP request analyser might be waiting
1776 * for some free space in the response buffer, so we might need to call
1777 * it when something changes in the response buffer, but still we pass
1778 * it the request buffer. Note that the SI state might very well still
1779 * be zero due to us returning a flow of redirects!
1780 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001781 res->analysers &= ~AN_REQ_ALL;
1782 req->flags |= CF_WAKE_ONCE;
Willy Tarreau0499e352010-12-17 07:13:42 +01001783 }
1784
Willy Tarreau8f128b42014-11-28 15:07:47 +01001785 if (si_b->state >= SI_ST_EST) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001786 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001787 unsigned int ana_list;
1788 unsigned int ana_back;
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001789
Willy Tarreau90deb182010-01-07 00:20:41 +01001790 /* it's up to the analysers to stop disable reading or
1791 * closing. Note: if an analyser disables any of these
1792 * bits, it is responsible for enabling them again when
1793 * it disables itself, so that other analysers are called
1794 * in similar conditions.
1795 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001796 channel_auto_read(res);
1797 channel_auto_close(res);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001798
1799 /* We will call all analysers for which a bit is set in
Willy Tarreau8f128b42014-11-28 15:07:47 +01001800 * res->analysers, following the bit order from LSB
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001801 * to MSB. The analysers must remove themselves from
1802 * the list when not needed. Any analyser may return 0
1803 * to break out of the loop, either because of missing
1804 * data to take a decision, or because it decides to
Willy Tarreau87b09662015-04-03 00:22:06 +02001805 * kill the stream. We loop at least once through each
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001806 * analyser, and we may loop again if other analysers
1807 * are added in the middle.
1808 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001809
Willy Tarreau8f128b42014-11-28 15:07:47 +01001810 ana_list = ana_back = res->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001811 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001812 /* Warning! ensure that analysers are always placed in ascending order! */
1813
Emeric Brun97679e72010-09-23 17:56:44 +02001814 if (ana_list & AN_RES_INSPECT) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001815 if (!tcp_inspect_response(s, res, AN_RES_INSPECT))
Emeric Brun97679e72010-09-23 17:56:44 +02001816 break;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001817 UPDATE_ANALYSERS(res->analysers, ana_list, ana_back, AN_RES_INSPECT);
Emeric Brun97679e72010-09-23 17:56:44 +02001818 }
1819
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001820 if (ana_list & AN_RES_WAIT_HTTP) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001821 if (!http_wait_for_response(s, res, AN_RES_WAIT_HTTP))
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001822 break;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001823 UPDATE_ANALYSERS(res->analysers, ana_list, ana_back, AN_RES_WAIT_HTTP);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001824 }
1825
Emeric Brun1d33b292010-01-04 15:47:17 +01001826 if (ana_list & AN_RES_STORE_RULES) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001827 if (!process_store_rules(s, res, AN_RES_STORE_RULES))
Emeric Brun1d33b292010-01-04 15:47:17 +01001828 break;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001829 UPDATE_ANALYSERS(res->analysers, ana_list, ana_back, AN_RES_STORE_RULES);
Emeric Brun1d33b292010-01-04 15:47:17 +01001830 }
1831
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001832 if (ana_list & AN_RES_HTTP_PROCESS_BE) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001833 if (!http_process_res_common(s, res, AN_RES_HTTP_PROCESS_BE, s->be))
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001834 break;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001835 UPDATE_ANALYSERS(res->analysers, ana_list, ana_back, AN_RES_HTTP_PROCESS_BE);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001836 }
Willy Tarreaud98cf932009-12-27 22:54:55 +01001837
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001838 if (ana_list & AN_RES_HTTP_XFER_BODY) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001839 if (!http_response_forward_body(s, res, AN_RES_HTTP_XFER_BODY))
Willy Tarreaud98cf932009-12-27 22:54:55 +01001840 break;
Willy Tarreau8f128b42014-11-28 15:07:47 +01001841 UPDATE_ANALYSERS(res->analysers, ana_list, ana_back, AN_RES_HTTP_XFER_BODY);
Willy Tarreaud98cf932009-12-27 22:54:55 +01001842 }
Willy Tarreaue34070e2010-01-08 00:32:27 +01001843 break;
1844 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001845 }
1846
Willy Tarreau8f128b42014-11-28 15:07:47 +01001847 rp_cons_last = si_f->state;
1848 rp_prod_last = si_b->state;
1849 rpf_last = res->flags;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001850
Willy Tarreau8f128b42014-11-28 15:07:47 +01001851 if ((res->flags ^ flags) & CF_MASK_STATIC)
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001852 goto resync_response;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001853 }
1854
Willy Tarreau576507f2010-01-07 00:09:04 +01001855 /* maybe someone has added some request analysers, so we must check and loop */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001856 if (req->analysers & ~req_ana_back)
Willy Tarreau576507f2010-01-07 00:09:04 +01001857 goto resync_request;
1858
Willy Tarreau8f128b42014-11-28 15:07:47 +01001859 if ((req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0499e352010-12-17 07:13:42 +01001860 goto resync_request;
1861
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001862 /* FIXME: here we should call protocol handlers which rely on
1863 * both buffers.
1864 */
1865
1866
1867 /*
Willy Tarreau87b09662015-04-03 00:22:06 +02001868 * Now we propagate unhandled errors to the stream. Normally
Willy Tarreauae526782010-03-04 20:34:23 +01001869 * we're just in a data phase here since it means we have not
1870 * seen any analyser who could set an error status.
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001871 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001872 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02001873 if (unlikely(!(s->flags & SF_ERR_MASK))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01001874 if (req->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001875 /* Report it if the client got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001876 req->analysers = 0;
1877 if (req->flags & CF_READ_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001878 s->be->be_counters.cli_aborts++;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001879 sess->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001880 if (srv)
1881 srv->counters.cli_aborts++;
Willy Tarreaue7dff022015-04-03 01:14:29 +02001882 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01001883 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001884 else if (req->flags & CF_READ_TIMEOUT) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001885 s->be->be_counters.cli_aborts++;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001886 sess->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001887 if (srv)
1888 srv->counters.cli_aborts++;
Willy Tarreaue7dff022015-04-03 01:14:29 +02001889 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01001890 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001891 else if (req->flags & CF_WRITE_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001892 s->be->be_counters.srv_aborts++;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001893 sess->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001894 if (srv)
1895 srv->counters.srv_aborts++;
Willy Tarreaue7dff022015-04-03 01:14:29 +02001896 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01001897 }
1898 else {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001899 s->be->be_counters.srv_aborts++;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001900 sess->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001901 if (srv)
1902 srv->counters.srv_aborts++;
Willy Tarreaue7dff022015-04-03 01:14:29 +02001903 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01001904 }
Willy Tarreau84455332009-03-15 22:34:05 +01001905 sess_set_term_flags(s);
1906 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001907 else if (res->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001908 /* Report it if the server got an error or a read timeout expired */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001909 res->analysers = 0;
1910 if (res->flags & CF_READ_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001911 s->be->be_counters.srv_aborts++;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001912 sess->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001913 if (srv)
1914 srv->counters.srv_aborts++;
Willy Tarreaue7dff022015-04-03 01:14:29 +02001915 s->flags |= SF_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01001916 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001917 else if (res->flags & CF_READ_TIMEOUT) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001918 s->be->be_counters.srv_aborts++;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001919 sess->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001920 if (srv)
1921 srv->counters.srv_aborts++;
Willy Tarreaue7dff022015-04-03 01:14:29 +02001922 s->flags |= SF_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01001923 }
Willy Tarreau8f128b42014-11-28 15:07:47 +01001924 else if (res->flags & CF_WRITE_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001925 s->be->be_counters.cli_aborts++;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001926 sess->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001927 if (srv)
1928 srv->counters.cli_aborts++;
Willy Tarreaue7dff022015-04-03 01:14:29 +02001929 s->flags |= SF_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01001930 }
1931 else {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001932 s->be->be_counters.cli_aborts++;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001933 sess->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001934 if (srv)
1935 srv->counters.cli_aborts++;
Willy Tarreaue7dff022015-04-03 01:14:29 +02001936 s->flags |= SF_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01001937 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001938 sess_set_term_flags(s);
1939 }
Willy Tarreau84455332009-03-15 22:34:05 +01001940 }
1941
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001942 /*
1943 * Here we take care of forwarding unhandled data. This also includes
1944 * connection establishments and shutdown requests.
1945 */
1946
1947
Willy Tarreau7c84bab2009-03-08 21:38:23 +01001948 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02001949 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001950 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001951 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01001952 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001953 if (unlikely(!req->analysers &&
1954 !(req->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
1955 (si_f->state >= SI_ST_EST) &&
1956 (req->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01001957 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01001958 * attached to it. If any data are left in, we'll permit them to
1959 * move.
1960 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001961 channel_auto_read(req);
1962 channel_auto_connect(req);
1963 channel_auto_close(req);
1964 buffer_flush(req->buf);
Willy Tarreau5bd8c372009-01-19 00:32:22 +01001965
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01001966 /* We'll let data flow between the producer (if still connected)
1967 * to the consumer (which might possibly not be connected yet).
Willy Tarreau7c84bab2009-03-08 21:38:23 +01001968 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001969 if (!(req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
1970 channel_forward(req, CHN_INFINITE_FORWARD);
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01001971 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01001972
Willy Tarreau7c84bab2009-03-08 21:38:23 +01001973 /* check if it is wise to enable kernel splicing to forward request data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001974 if (!(req->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
1975 req->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01001976 (global.tune.options & GTUNE_USE_SPLICE) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01001977 (objt_conn(si_f->end) && __objt_conn(si_f->end)->xprt && __objt_conn(si_f->end)->xprt->rcv_pipe) &&
1978 (objt_conn(si_b->end) && __objt_conn(si_b->end)->xprt && __objt_conn(si_b->end)->xprt->snd_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01001979 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02001980 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_REQ) ||
1981 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01001982 (req->flags & CF_STREAMER_FAST)))) {
1983 req->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01001984 }
1985
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001986 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001987 rqf_last = req->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001988
1989 /*
1990 * Now forward all shutdown requests between both sides of the buffer
1991 */
1992
Willy Tarreau520d95e2009-09-19 21:04:57 +02001993 /* first, let's check if the request buffer needs to shutdown(write), which may
1994 * happen either because the input is closed or because we want to force a close
Willy Tarreau05cdd962014-05-10 14:30:07 +02001995 * once the server has begun to respond. If a half-closed timeout is set, we adjust
1996 * the other side's timeout as well.
Willy Tarreau520d95e2009-09-19 21:04:57 +02001997 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01001998 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau05cdd962014-05-10 14:30:07 +02001999 (CF_AUTO_CLOSE|CF_SHUTR))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002000 channel_shutw_now(req);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002001 if (tick_isset(sess->fe->timeout.clientfin)) {
2002 res->wto = sess->fe->timeout.clientfin;
Willy Tarreau8f128b42014-11-28 15:07:47 +01002003 res->wex = tick_add(now_ms, res->wto);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002004 }
2005 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002006
2007 /* shutdown(write) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002008 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2009 channel_is_empty(req))) {
2010 if (req->flags & CF_READ_ERROR)
2011 si_b->flags |= SI_FL_NOLINGER;
2012 si_shutw(si_b);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002013 if (tick_isset(s->be->timeout.serverfin)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002014 res->rto = s->be->timeout.serverfin;
2015 res->rex = tick_add(now_ms, res->rto);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002016 }
Willy Tarreau8615c2a2013-06-21 08:20:19 +02002017 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002018
2019 /* shutdown(write) done on server side, we must stop the client too */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002020 if (unlikely((req->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW &&
2021 !req->analysers))
2022 channel_shutr_now(req);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002023
2024 /* shutdown(read) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002025 if (unlikely((req->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2026 if (si_f->flags & SI_FL_NOHALF)
2027 si_f->flags |= SI_FL_NOLINGER;
2028 si_shutr(si_f);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002029 if (tick_isset(sess->fe->timeout.clientfin)) {
2030 res->wto = sess->fe->timeout.clientfin;
Willy Tarreau8f128b42014-11-28 15:07:47 +01002031 res->wex = tick_add(now_ms, res->wto);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002032 }
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002033 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002034
Willy Tarreau520d95e2009-09-19 21:04:57 +02002035 /* it's possible that an upper layer has requested a connection setup or abort.
2036 * There are 2 situations where we decide to establish a new connection :
2037 * - there are data scheduled for emission in the buffer
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002038 * - the CF_AUTO_CONNECT flag is set (active connection)
Willy Tarreau520d95e2009-09-19 21:04:57 +02002039 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002040 if (si_b->state == SI_ST_INI) {
2041 if (!(req->flags & CF_SHUTW)) {
2042 if ((req->flags & CF_AUTO_CONNECT) || !channel_is_empty(req)) {
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002043 /* If we have an appctx, there is no connect method, so we
2044 * immediately switch to the connected state, otherwise we
2045 * perform a connection request.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002046 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002047 si_b->state = SI_ST_REQ; /* new connection requested */
2048 si_b->conn_retries = s->be->conn_retries;
Willy Tarreau520d95e2009-09-19 21:04:57 +02002049 }
Willy Tarreau73201222009-08-16 18:27:24 +02002050 }
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002051 else {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002052 si_b->state = SI_ST_CLO; /* shutw+ini = abort */
2053 channel_shutw_now(req); /* fix buffer flags upon abort */
2054 channel_shutr_now(res);
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002055 }
Willy Tarreau92795622009-03-06 12:51:23 +01002056 }
2057
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002058
2059 /* we may have a pending connection request, or a connection waiting
2060 * for completion.
2061 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002062 if (si_b->state >= SI_ST_REQ && si_b->state < SI_ST_CON) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002063 do {
2064 /* nb: step 1 might switch from QUE to ASS, but we first want
2065 * to give a chance to step 2 to perform a redirect if needed.
2066 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002067 if (si_b->state != SI_ST_REQ)
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01002068 sess_update_stream_int(s);
Willy Tarreau8f128b42014-11-28 15:07:47 +01002069 if (si_b->state == SI_ST_REQ)
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01002070 sess_prepare_conn_req(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002071
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +01002072 /* applets directly go to the ESTABLISHED state. Similarly,
2073 * servers experience the same fate when their connection
2074 * is reused.
2075 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002076 if (unlikely(si_b->state == SI_ST_EST))
Willy Tarreau7b8c4f92014-11-28 15:15:44 +01002077 sess_establish(s);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01002078
Willy Tarreaub44c8732013-12-31 23:16:50 +01002079 /* Now we can add the server name to a header (if requested) */
2080 /* check for HTTP mode and proxy server_name_hdr_name != NULL */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002081 if ((si_b->state >= SI_ST_CON) &&
Willy Tarreaub44c8732013-12-31 23:16:50 +01002082 (s->be->server_id_hdr_name != NULL) &&
2083 (s->be->mode == PR_MODE_HTTP) &&
2084 objt_server(s->target)) {
Willy Tarreaueee5b512015-04-03 23:46:31 +02002085 http_send_name_header(s->txn, s->be, objt_server(s->target)->id);
Willy Tarreau1e5dfda2013-04-07 18:19:16 +02002086 }
2087
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002088 srv = objt_server(s->target);
Willy Tarreaue7dff022015-04-03 01:14:29 +02002089 if (si_b->state == SI_ST_ASS && srv && srv->rdr_len && (s->flags & SF_REDIRECTABLE))
Willy Tarreau8f128b42014-11-28 15:07:47 +01002090 http_perform_server_redirect(s, si_b);
2091 } while (si_b->state == SI_ST_ASS);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002092 }
2093
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002094 /* Benchmarks have shown that it's optimal to do a full resync now */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002095 if (si_f->state == SI_ST_DIS || si_b->state == SI_ST_DIS)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002096 goto resync_stream_interface;
2097
Willy Tarreau815a9b22010-07-27 17:15:12 +02002098 /* otherwise we want to check if we need to resync the req buffer or not */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002099 if ((req->flags ^ rqf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002100 goto resync_request;
2101
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002102 /* perform output updates to the response buffer */
Willy Tarreau84455332009-03-15 22:34:05 +01002103
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002104 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002105 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002106 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002107 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002108 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002109 if (unlikely(!res->analysers &&
2110 !(res->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
2111 (si_b->state >= SI_ST_EST) &&
2112 (res->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002113 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002114 * attached to it. If any data are left in, we'll permit them to
2115 * move.
2116 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002117 channel_auto_read(res);
2118 channel_auto_close(res);
2119 buffer_flush(res->buf);
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002120
2121 /* We'll let data flow between the producer (if still connected)
2122 * to the consumer.
2123 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002124 if (!(res->flags & (CF_SHUTR|CF_SHUTW_NOW)))
2125 channel_forward(res, CHN_INFINITE_FORWARD);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002126
2127 /* if we have no analyser anymore in any direction and have a
Willy Tarreau05cdd962014-05-10 14:30:07 +02002128 * tunnel timeout set, use it now. Note that we must respect
2129 * the half-closed timeouts as well.
Willy Tarreauce887fd2012-05-12 12:50:00 +02002130 */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002131 if (!req->analysers && s->be->timeout.tunnel) {
2132 req->rto = req->wto = res->rto = res->wto =
Willy Tarreauce887fd2012-05-12 12:50:00 +02002133 s->be->timeout.tunnel;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002134
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002135 if ((req->flags & CF_SHUTR) && tick_isset(sess->fe->timeout.clientfin))
2136 res->wto = sess->fe->timeout.clientfin;
Willy Tarreau8f128b42014-11-28 15:07:47 +01002137 if ((req->flags & CF_SHUTW) && tick_isset(s->be->timeout.serverfin))
2138 res->rto = s->be->timeout.serverfin;
2139 if ((res->flags & CF_SHUTR) && tick_isset(s->be->timeout.serverfin))
2140 req->wto = s->be->timeout.serverfin;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002141 if ((res->flags & CF_SHUTW) && tick_isset(sess->fe->timeout.clientfin))
2142 req->rto = sess->fe->timeout.clientfin;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002143
Willy Tarreau8f128b42014-11-28 15:07:47 +01002144 req->rex = tick_add(now_ms, req->rto);
2145 req->wex = tick_add(now_ms, req->wto);
2146 res->rex = tick_add(now_ms, res->rto);
2147 res->wex = tick_add(now_ms, res->wto);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002148 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002149 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002150
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002151 /* check if it is wise to enable kernel splicing to forward response data */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002152 if (!(res->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
2153 res->to_forward &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002154 (global.tune.options & GTUNE_USE_SPLICE) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002155 (objt_conn(si_f->end) && __objt_conn(si_f->end)->xprt && __objt_conn(si_f->end)->xprt->snd_pipe) &&
2156 (objt_conn(si_b->end) && __objt_conn(si_b->end)->xprt && __objt_conn(si_b->end)->xprt->rcv_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002157 (pipes_used < global.maxpipes) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002158 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_RTR) ||
2159 (((sess->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau8f128b42014-11-28 15:07:47 +01002160 (res->flags & CF_STREAMER_FAST)))) {
2161 res->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002162 }
2163
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002164 /* reflect what the L7 analysers have seen last */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002165 rpf_last = res->flags;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002166
2167 /*
2168 * Now forward all shutdown requests between both sides of the buffer
2169 */
2170
2171 /*
2172 * FIXME: this is probably where we should produce error responses.
2173 */
2174
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002175 /* first, let's check if the response buffer needs to shutdown(write) */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002176 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau05cdd962014-05-10 14:30:07 +02002177 (CF_AUTO_CLOSE|CF_SHUTR))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002178 channel_shutw_now(res);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002179 if (tick_isset(s->be->timeout.serverfin)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002180 req->wto = s->be->timeout.serverfin;
2181 req->wex = tick_add(now_ms, req->wto);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002182 }
2183 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002184
2185 /* shutdown(write) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002186 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
2187 channel_is_empty(res))) {
2188 si_shutw(si_f);
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002189 if (tick_isset(sess->fe->timeout.clientfin)) {
2190 req->rto = sess->fe->timeout.clientfin;
Willy Tarreau8f128b42014-11-28 15:07:47 +01002191 req->rex = tick_add(now_ms, req->rto);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002192 }
2193 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002194
2195 /* shutdown(write) done on the client side, we must stop the server too */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002196 if (unlikely((res->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW) &&
2197 !res->analysers)
2198 channel_shutr_now(res);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002199
2200 /* shutdown(read) pending */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002201 if (unlikely((res->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
2202 if (si_b->flags & SI_FL_NOHALF)
2203 si_b->flags |= SI_FL_NOLINGER;
2204 si_shutr(si_b);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002205 if (tick_isset(s->be->timeout.serverfin)) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002206 req->wto = s->be->timeout.serverfin;
2207 req->wex = tick_add(now_ms, req->wto);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002208 }
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002209 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002210
Willy Tarreau8f128b42014-11-28 15:07:47 +01002211 if (si_f->state == SI_ST_DIS || si_b->state == SI_ST_DIS)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002212 goto resync_stream_interface;
2213
Willy Tarreau8f128b42014-11-28 15:07:47 +01002214 if (req->flags != rqf_last)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002215 goto resync_request;
2216
Willy Tarreau8f128b42014-11-28 15:07:47 +01002217 if ((res->flags ^ rpf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002218 goto resync_response;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002219
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002220 /* we're interested in getting wakeups again */
Willy Tarreau8f128b42014-11-28 15:07:47 +01002221 si_f->flags &= ~SI_FL_DONT_WAKE;
2222 si_b->flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002223
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002224 /* This is needed only when debugging is enabled, to indicate
2225 * client-side or server-side close. Please note that in the unlikely
2226 * event where both sides would close at once, the sequence is reported
2227 * on the server side first.
2228 */
2229 if (unlikely((global.mode & MODE_DEBUG) &&
2230 (!(global.mode & MODE_QUIET) ||
2231 (global.mode & MODE_VERBOSE)))) {
Willy Tarreau8f128b42014-11-28 15:07:47 +01002232 if (si_b->state == SI_ST_CLO &&
2233 si_b->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002234 chunk_printf(&trash, "%08x:%s.srvcls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002235 s->uniq_id, s->be->id,
Willy Tarreau8f128b42014-11-28 15:07:47 +01002236 objt_conn(si_f->end) ? (unsigned short)objt_conn(si_f->end)->t.sock.fd : -1,
2237 objt_conn(si_b->end) ? (unsigned short)objt_conn(si_b->end)->t.sock.fd : -1);
Willy Tarreau89efaed2013-12-13 15:14:55 +01002238 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002239 }
2240
Willy Tarreau8f128b42014-11-28 15:07:47 +01002241 if (si_f->state == SI_ST_CLO &&
2242 si_f->prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002243 chunk_printf(&trash, "%08x:%s.clicls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002244 s->uniq_id, s->be->id,
Willy Tarreau8f128b42014-11-28 15:07:47 +01002245 objt_conn(si_f->end) ? (unsigned short)objt_conn(si_f->end)->t.sock.fd : -1,
2246 objt_conn(si_b->end) ? (unsigned short)objt_conn(si_b->end)->t.sock.fd : -1);
Willy Tarreau89efaed2013-12-13 15:14:55 +01002247 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002248 }
2249 }
2250
Willy Tarreau8f128b42014-11-28 15:07:47 +01002251 if (likely((si_f->state != SI_ST_CLO) ||
2252 (si_b->state > SI_ST_INI && si_b->state < SI_ST_CLO))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002253
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002254 if ((sess->fe->options & PR_O_CONTSTATS) && (s->flags & SF_BE_ASSIGNED))
Willy Tarreau87b09662015-04-03 00:22:06 +02002255 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002256
Willy Tarreau563cc372015-04-19 18:13:56 +02002257 if (si_f->state == SI_ST_EST)
Willy Tarreau8f128b42014-11-28 15:07:47 +01002258 si_update(si_f);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002259
Willy Tarreau563cc372015-04-19 18:13:56 +02002260 if (si_b->state == SI_ST_EST)
Willy Tarreau8f128b42014-11-28 15:07:47 +01002261 si_update(si_b);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002262
Willy Tarreau8f128b42014-11-28 15:07:47 +01002263 req->flags &= ~(CF_READ_NULL|CF_READ_PARTIAL|CF_WRITE_NULL|CF_WRITE_PARTIAL|CF_READ_ATTACHED);
2264 res->flags &= ~(CF_READ_NULL|CF_READ_PARTIAL|CF_WRITE_NULL|CF_WRITE_PARTIAL|CF_READ_ATTACHED);
2265 si_f->prev_state = si_f->state;
2266 si_b->prev_state = si_b->state;
2267 si_f->flags &= ~(SI_FL_ERR|SI_FL_EXP);
2268 si_b->flags &= ~(SI_FL_ERR|SI_FL_EXP);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002269
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002270 /* Trick: if a request is being waiting for the server to respond,
2271 * and if we know the server can timeout, we don't want the timeout
2272 * to expire on the client side first, but we're still interested
2273 * in passing data from the client to the server (eg: POST). Thus,
2274 * we can cancel the client's request timeout if the server's
2275 * request timeout is set and the server has not yet sent a response.
2276 */
2277
Willy Tarreau8f128b42014-11-28 15:07:47 +01002278 if ((res->flags & (CF_AUTO_CLOSE|CF_SHUTR)) == 0 &&
2279 (tick_isset(req->wex) || tick_isset(res->rex))) {
2280 req->flags |= CF_READ_NOEXP;
2281 req->rex = TICK_ETERNITY;
Willy Tarreau6f0a7ba2014-06-23 15:22:31 +02002282 }
2283
Willy Tarreau798f4322012-11-08 14:49:17 +01002284 update_exp_and_leave:
Willy Tarreau8f128b42014-11-28 15:07:47 +01002285 t->expire = tick_first(tick_first(req->rex, req->wex),
2286 tick_first(res->rex, res->wex));
2287 if (req->analysers)
2288 t->expire = tick_first(t->expire, req->analyse_exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002289
Willy Tarreau8f128b42014-11-28 15:07:47 +01002290 if (si_f->exp)
2291 t->expire = tick_first(t->expire, si_f->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002292
Willy Tarreau8f128b42014-11-28 15:07:47 +01002293 if (si_b->exp)
2294 t->expire = tick_first(t->expire, si_b->exp);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002295
2296#ifdef DEBUG_FULL
Willy Tarreau127334e2009-03-28 10:47:26 +01002297 fprintf(stderr,
2298 "[%u] queuing with exp=%u req->rex=%u req->wex=%u req->ana_exp=%u"
2299 " rep->rex=%u rep->wex=%u, si[0].exp=%u, si[1].exp=%u, cs=%d, ss=%d\n",
Willy Tarreau8f128b42014-11-28 15:07:47 +01002300 now_ms, t->expire, req->rex, req->wex, req->analyse_exp,
2301 res->rex, res->wex, si_f->exp, si_b->exp, si_f->state, si_b->state);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002302#endif
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002303
2304#ifdef DEBUG_DEV
2305 /* this may only happen when no timeout is set or in case of an FSM bug */
Willy Tarreaud0a201b2009-03-08 15:53:06 +01002306 if (!tick_isset(t->expire))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002307 ABORT_NOW();
2308#endif
Willy Tarreau87b09662015-04-03 00:22:06 +02002309 stream_release_buffers(s);
Willy Tarreau26c25062009-03-08 09:38:41 +01002310 return t; /* nothing more to do */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002311 }
2312
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002313 sess->fe->feconn--;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002314 if (s->flags & SF_BE_ASSIGNED)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002315 s->be->beconn--;
Willy Tarreauaf7ad002010-08-31 15:39:26 +02002316 jobs--;
Willy Tarreaufb0afa72015-04-03 14:46:27 +02002317 if (sess->listener) {
2318 if (!(sess->listener->options & LI_O_UNLIMITED))
Thierry FOURNIERa47a94f2014-03-20 15:42:53 +01002319 actconn--;
Willy Tarreaufb0afa72015-04-03 14:46:27 +02002320 sess->listener->nbconn--;
2321 if (sess->listener->state == LI_FULL)
2322 resume_listener(sess->listener);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002323
Thierry FOURNIERa47a94f2014-03-20 15:42:53 +01002324 /* Dequeues all of the listeners waiting for a resource */
2325 if (!LIST_ISEMPTY(&global_listener_queue))
2326 dequeue_all_listeners(&global_listener_queue);
Willy Tarreau08ceb102011-07-24 22:58:00 +02002327
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002328 if (!LIST_ISEMPTY(&sess->fe->listener_queue) &&
2329 (!sess->fe->fe_sps_lim || freq_ctr_remain(&sess->fe->fe_sess_per_sec, sess->fe->fe_sps_lim, 0) > 0))
2330 dequeue_all_listeners(&sess->fe->listener_queue);
Thierry FOURNIERa47a94f2014-03-20 15:42:53 +01002331 }
Willy Tarreau07687c12011-07-24 23:55:06 +02002332
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002333 if (unlikely((global.mode & MODE_DEBUG) &&
2334 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)))) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002335 chunk_printf(&trash, "%08x:%s.closed[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002336 s->uniq_id, s->be->id,
Willy Tarreau8f128b42014-11-28 15:07:47 +01002337 objt_conn(si_f->end) ? (unsigned short)objt_conn(si_f->end)->t.sock.fd : -1,
2338 objt_conn(si_b->end) ? (unsigned short)objt_conn(si_b->end)->t.sock.fd : -1);
Willy Tarreau89efaed2013-12-13 15:14:55 +01002339 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002340 }
2341
2342 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau87b09662015-04-03 00:22:06 +02002343 stream_process_counters(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002344
Willy Tarreaueee5b512015-04-03 23:46:31 +02002345 if (s->txn && s->txn->status) {
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002346 int n;
2347
Willy Tarreaueee5b512015-04-03 23:46:31 +02002348 n = s->txn->status / 100;
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002349 if (n < 1 || n > 5)
2350 n = 0;
2351
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002352 if (sess->fe->mode == PR_MODE_HTTP) {
2353 sess->fe->fe_counters.p.http.rsp[n]++;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002354 if (s->comp_algo && (s->flags & SF_COMP_READY))
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002355 sess->fe->fe_counters.p.http.comp_rsp++;
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002356 }
Willy Tarreaue7dff022015-04-03 01:14:29 +02002357 if ((s->flags & SF_BE_ASSIGNED) &&
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002358 (s->be->mode == PR_MODE_HTTP)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002359 s->be->be_counters.p.http.rsp[n]++;
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002360 s->be->be_counters.p.http.cum_req++;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002361 if (s->comp_algo && (s->flags & SF_COMP_READY))
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002362 s->be->be_counters.p.http.comp_rsp++;
2363 }
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002364 }
2365
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002366 /* let's do a final log if we need it */
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002367 if (!LIST_ISEMPTY(&sess->fe->logformat) && s->logs.logwait &&
Willy Tarreaue7dff022015-04-03 01:14:29 +02002368 !(s->flags & SF_MONITOR) &&
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002369 (!(sess->fe->options & PR_O_NULLNOLOG) || req->total)) {
Willy Tarreaua5555ec2008-11-30 19:02:32 +01002370 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002371 }
2372
Willy Tarreau87b09662015-04-03 00:22:06 +02002373 /* update time stats for this stream */
2374 stream_update_time_stats(s);
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002375
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002376 /* the task MUST not be in the run queue anymore */
Willy Tarreau87b09662015-04-03 00:22:06 +02002377 stream_free(s);
Willy Tarreau26c25062009-03-08 09:38:41 +01002378 task_delete(t);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002379 task_free(t);
Willy Tarreau26c25062009-03-08 09:38:41 +01002380 return NULL;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002381}
2382
Willy Tarreau87b09662015-04-03 00:22:06 +02002383/* Update the stream's backend and server time stats */
2384void stream_update_time_stats(struct stream *s)
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002385{
2386 int t_request;
2387 int t_queue;
2388 int t_connect;
2389 int t_data;
2390 int t_close;
2391 struct server *srv;
2392
2393 t_request = 0;
2394 t_queue = s->logs.t_queue;
2395 t_connect = s->logs.t_connect;
2396 t_close = s->logs.t_close;
2397 t_data = s->logs.t_data;
2398
2399 if (s->be->mode != PR_MODE_HTTP)
2400 t_data = t_connect;
2401
2402 if (t_connect < 0 || t_data < 0)
2403 return;
2404
2405 if (tv_isge(&s->logs.tv_request, &s->logs.tv_accept))
2406 t_request = tv_ms_elapsed(&s->logs.tv_accept, &s->logs.tv_request);
2407
2408 t_data -= t_connect;
2409 t_connect -= t_queue;
2410 t_queue -= t_request;
2411
2412 srv = objt_server(s->target);
2413 if (srv) {
2414 swrate_add(&srv->counters.q_time, TIME_STATS_SAMPLES, t_queue);
2415 swrate_add(&srv->counters.c_time, TIME_STATS_SAMPLES, t_connect);
2416 swrate_add(&srv->counters.d_time, TIME_STATS_SAMPLES, t_data);
2417 swrate_add(&srv->counters.t_time, TIME_STATS_SAMPLES, t_close);
2418 }
2419 swrate_add(&s->be->be_counters.q_time, TIME_STATS_SAMPLES, t_queue);
2420 swrate_add(&s->be->be_counters.c_time, TIME_STATS_SAMPLES, t_connect);
2421 swrate_add(&s->be->be_counters.d_time, TIME_STATS_SAMPLES, t_data);
2422 swrate_add(&s->be->be_counters.t_time, TIME_STATS_SAMPLES, t_close);
2423}
2424
Willy Tarreau7c669d72008-06-20 15:04:11 +02002425/*
2426 * This function adjusts sess->srv_conn and maintains the previous and new
Willy Tarreau87b09662015-04-03 00:22:06 +02002427 * server's served stream counts. Setting newsrv to NULL is enough to release
Willy Tarreau7c669d72008-06-20 15:04:11 +02002428 * current connection slot. This function also notifies any LB algo which might
Willy Tarreau87b09662015-04-03 00:22:06 +02002429 * expect to be informed about any change in the number of active streams on a
Willy Tarreau7c669d72008-06-20 15:04:11 +02002430 * server.
2431 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002432void sess_change_server(struct stream *sess, struct server *newsrv)
Willy Tarreau7c669d72008-06-20 15:04:11 +02002433{
2434 if (sess->srv_conn == newsrv)
2435 return;
2436
2437 if (sess->srv_conn) {
2438 sess->srv_conn->served--;
2439 if (sess->srv_conn->proxy->lbprm.server_drop_conn)
2440 sess->srv_conn->proxy->lbprm.server_drop_conn(sess->srv_conn);
Willy Tarreau87b09662015-04-03 00:22:06 +02002441 stream_del_srv_conn(sess);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002442 }
2443
2444 if (newsrv) {
2445 newsrv->served++;
2446 if (newsrv->proxy->lbprm.server_take_conn)
2447 newsrv->proxy->lbprm.server_take_conn(newsrv);
Willy Tarreau87b09662015-04-03 00:22:06 +02002448 stream_add_srv_conn(sess, newsrv);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002449 }
2450}
2451
Willy Tarreau84455332009-03-15 22:34:05 +01002452/* Handle server-side errors for default protocols. It is called whenever a a
2453 * connection setup is aborted or a request is aborted in queue. It sets the
Willy Tarreau87b09662015-04-03 00:22:06 +02002454 * stream termination flags so that the caller does not have to worry about
Willy Tarreau84455332009-03-15 22:34:05 +01002455 * them. It's installed as ->srv_error for the server-side stream_interface.
2456 */
Willy Tarreau87b09662015-04-03 00:22:06 +02002457void default_srv_error(struct stream *s, struct stream_interface *si)
Willy Tarreau84455332009-03-15 22:34:05 +01002458{
2459 int err_type = si->err_type;
2460 int err = 0, fin = 0;
2461
2462 if (err_type & SI_ET_QUEUE_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002463 err = SF_ERR_CLICL;
2464 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002465 }
2466 else if (err_type & SI_ET_CONN_ABRT) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002467 err = SF_ERR_CLICL;
2468 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002469 }
2470 else if (err_type & SI_ET_QUEUE_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002471 err = SF_ERR_SRVTO;
2472 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002473 }
2474 else if (err_type & SI_ET_QUEUE_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002475 err = SF_ERR_SRVCL;
2476 fin = SF_FINST_Q;
Willy Tarreau84455332009-03-15 22:34:05 +01002477 }
2478 else if (err_type & SI_ET_CONN_TO) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002479 err = SF_ERR_SRVTO;
2480 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002481 }
2482 else if (err_type & SI_ET_CONN_ERR) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002483 err = SF_ERR_SRVCL;
2484 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002485 }
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002486 else if (err_type & SI_ET_CONN_RES) {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002487 err = SF_ERR_RESOURCE;
2488 fin = SF_FINST_C;
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002489 }
Willy Tarreau84455332009-03-15 22:34:05 +01002490 else /* SI_ET_CONN_OTHER and others */ {
Willy Tarreaue7dff022015-04-03 01:14:29 +02002491 err = SF_ERR_INTERNAL;
2492 fin = SF_FINST_C;
Willy Tarreau84455332009-03-15 22:34:05 +01002493 }
2494
Willy Tarreaue7dff022015-04-03 01:14:29 +02002495 if (!(s->flags & SF_ERR_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002496 s->flags |= err;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002497 if (!(s->flags & SF_FINST_MASK))
Willy Tarreau84455332009-03-15 22:34:05 +01002498 s->flags |= fin;
2499}
Willy Tarreau7c669d72008-06-20 15:04:11 +02002500
Willy Tarreaue7dff022015-04-03 01:14:29 +02002501/* kill a stream and set the termination flags to <why> (one of SF_ERR_*) */
Willy Tarreau87b09662015-04-03 00:22:06 +02002502void stream_shutdown(struct stream *stream, int why)
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002503{
Willy Tarreau87b09662015-04-03 00:22:06 +02002504 if (stream->req.flags & (CF_SHUTW|CF_SHUTW_NOW))
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002505 return;
2506
Willy Tarreau87b09662015-04-03 00:22:06 +02002507 channel_shutw_now(&stream->req);
2508 channel_shutr_now(&stream->res);
2509 stream->task->nice = 1024;
Willy Tarreaue7dff022015-04-03 01:14:29 +02002510 if (!(stream->flags & SF_ERR_MASK))
Willy Tarreau87b09662015-04-03 00:22:06 +02002511 stream->flags |= why;
2512 task_wakeup(stream->task, TASK_WOKEN_OTHER);
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002513}
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02002514
Willy Tarreau8b22a712010-06-18 17:46:06 +02002515/************************************************************************/
2516/* All supported ACL keywords must be declared here. */
2517/************************************************************************/
2518
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002519/* Returns a pointer to a stkctr depending on the fetch keyword name.
2520 * It is designed to be called as sc[0-9]_* sc_* or src_* exclusively.
Willy Tarreaua65536c2013-07-22 22:40:11 +02002521 * sc[0-9]_* will return a pointer to the respective field in the
Willy Tarreau87b09662015-04-03 00:22:06 +02002522 * stream <l4>. sc_* requires an UINT argument specifying the stick
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002523 * counter number. src_* will fill a locally allocated structure with
Willy Tarreaua65536c2013-07-22 22:40:11 +02002524 * the table and entry corresponding to what is specified with src_*.
Willy Tarreau0f791d42013-07-23 19:56:43 +02002525 * NULL may be returned if the designated stkctr is not tracked. For
2526 * the sc_* and sc[0-9]_* forms, an optional table argument may be
2527 * passed. When present, the currently tracked key is then looked up
2528 * in the specified table instead of the current table. The purpose is
2529 * to be able to convery multiple values per key (eg: have gpc0 from
Willy Tarreau8b7f8682015-04-04 16:29:12 +02002530 * multiple tables). <strm> is allowed to be NULL, in which case only
2531 * the session will be consulted.
Willy Tarreaua65536c2013-07-22 22:40:11 +02002532 */
Willy Tarreaue12704b2014-07-15 19:06:18 +02002533struct stkctr *
Willy Tarreau192252e2015-04-04 01:47:55 +02002534smp_fetch_sc_stkctr(struct session *sess, struct stream *strm, const struct arg *args, const char *kw)
Willy Tarreaua65536c2013-07-22 22:40:11 +02002535{
2536 static struct stkctr stkctr;
Willy Tarreau8b7f8682015-04-04 16:29:12 +02002537 struct stkctr *stkptr;
Willy Tarreau6a0b6bd2014-04-09 13:25:42 +02002538 struct stksess *stksess;
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002539 unsigned int num = kw[2] - '0';
Willy Tarreau0f791d42013-07-23 19:56:43 +02002540 int arg = 0;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002541
Willy Tarreau0f791d42013-07-23 19:56:43 +02002542 if (num == '_' - '0') {
2543 /* sc_* variant, args[0] = ctr# (mandatory) */
2544 num = args[arg++].data.uint;
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002545 if (num >= MAX_SESS_STKCTR)
2546 return NULL;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002547 }
Willy Tarreau0f791d42013-07-23 19:56:43 +02002548 else if (num > 9) { /* src_* variant, args[0] = table */
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002549 struct stktable_key *key;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +02002550 struct connection *conn = objt_conn(sess->origin);
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002551
2552 if (!conn)
2553 return NULL;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002554
Thierry FOURNIER74c219d2014-04-14 14:35:40 +02002555 key = addr_to_stktable_key(&conn->addr.from, args->data.prx->table.type);
Willy Tarreaua65536c2013-07-22 22:40:11 +02002556 if (!key)
2557 return NULL;
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002558
Willy Tarreaua65536c2013-07-22 22:40:11 +02002559 stkctr.table = &args->data.prx->table;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002560 stkctr_set_entry(&stkctr, stktable_lookup_key(stkctr.table, key));
Willy Tarreaua65536c2013-07-22 22:40:11 +02002561 return &stkctr;
2562 }
Willy Tarreau0f791d42013-07-23 19:56:43 +02002563
2564 /* Here, <num> contains the counter number from 0 to 9 for
2565 * the sc[0-9]_ form, or even higher using sc_(num) if needed.
Willy Tarreau8b7f8682015-04-04 16:29:12 +02002566 * args[arg] is the first optional argument. We first lookup the
2567 * ctr form the stream, then from the session if it was not there.
Willy Tarreau0f791d42013-07-23 19:56:43 +02002568 */
Willy Tarreau8b7f8682015-04-04 16:29:12 +02002569
2570 stkptr = &strm->stkctr[num];
2571 if (!strm || !stkctr_entry(stkptr)) {
2572 stkptr = &sess->stkctr[num];
2573 if (!stkctr_entry(stkptr))
2574 return NULL;
2575 }
2576
2577 stksess = stkctr_entry(stkptr);
Willy Tarreau6a0b6bd2014-04-09 13:25:42 +02002578 if (!stksess)
2579 return NULL;
2580
Willy Tarreau0f791d42013-07-23 19:56:43 +02002581 if (unlikely(args[arg].type == ARGT_TAB)) {
2582 /* an alternate table was specified, let's look up the same key there */
2583 stkctr.table = &args[arg].data.prx->table;
Willy Tarreau6a0b6bd2014-04-09 13:25:42 +02002584 stkctr_set_entry(&stkctr, stktable_lookup(stkctr.table, stksess));
Willy Tarreau0f791d42013-07-23 19:56:43 +02002585 return &stkctr;
2586 }
Willy Tarreau8b7f8682015-04-04 16:29:12 +02002587 return stkptr;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002588}
2589
Willy Tarreau87b09662015-04-03 00:22:06 +02002590/* set return a boolean indicating if the requested stream counter is
Willy Tarreau88821242013-07-22 18:29:29 +02002591 * currently being tracked or not.
2592 * Supports being called as "sc[0-9]_tracked" only.
2593 */
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002594static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +02002595smp_fetch_sc_tracked(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002596{
2597 smp->flags = SMP_F_VOL_TEST;
2598 smp->type = SMP_T_BOOL;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +02002599 smp->data.uint = !!smp_fetch_sc_stkctr(smp->sess, smp->strm, args, kw);
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002600 return 1;
2601}
2602
Willy Tarreau87b09662015-04-03 00:22:06 +02002603/* set <smp> to the General Purpose Counter 0 value from the stream's tracked
Willy Tarreau30b20462013-07-22 19:46:52 +02002604 * frontend counters or from the src.
2605 * Supports being called as "sc[0-9]_get_gpc0" or "src_get_gpc0" only. Value
2606 * zero is returned if the key is new.
2607 */
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002608static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +02002609smp_fetch_sc_get_gpc0(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002610{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +02002611 struct stkctr *stkctr = smp_fetch_sc_stkctr(smp->sess, smp->strm, args, kw);
Willy Tarreau30b20462013-07-22 19:46:52 +02002612
2613 if (!stkctr)
2614 return 0;
2615
Willy Tarreau37406352012-04-23 16:16:37 +02002616 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002617 smp->type = SMP_T_UINT;
2618 smp->data.uint = 0;
Willy Tarreau30b20462013-07-22 19:46:52 +02002619
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002620 if (stkctr_entry(stkctr) != NULL) {
2621 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0);
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002622 if (!ptr)
2623 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002624 smp->data.uint = stktable_data_cast(ptr, gpc0);
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002625 }
2626 return 1;
2627}
2628
Willy Tarreau87b09662015-04-03 00:22:06 +02002629/* set <smp> to the General Purpose Counter 0's event rate from the stream's
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002630 * tracked frontend counters or from the src.
2631 * Supports being called as "sc[0-9]_gpc0_rate" or "src_gpc0_rate" only.
2632 * Value zero is returned if the key is new.
2633 */
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002634static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +02002635smp_fetch_sc_gpc0_rate(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002636{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +02002637 struct stkctr *stkctr = smp_fetch_sc_stkctr(smp->sess, smp->strm, args, kw);
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002638
2639 if (!stkctr)
2640 return 0;
2641
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002642 smp->flags = SMP_F_VOL_TEST;
2643 smp->type = SMP_T_UINT;
2644 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002645 if (stkctr_entry(stkctr) != NULL) {
2646 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0_RATE);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002647 if (!ptr)
2648 return 0; /* parameter not stored */
2649 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, gpc0_rate),
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +02002650 stkctr->table->data_arg[STKTABLE_DT_GPC0_RATE].u);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002651 }
2652 return 1;
2653}
2654
Willy Tarreau87b09662015-04-03 00:22:06 +02002655/* Increment the General Purpose Counter 0 value from the stream's tracked
Willy Tarreau710d38c2013-07-23 00:07:04 +02002656 * frontend counters and return it into temp integer.
2657 * Supports being called as "sc[0-9]_inc_gpc0" or "src_inc_gpc0" only.
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002658 */
2659static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +02002660smp_fetch_sc_inc_gpc0(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002661{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +02002662 struct stkctr *stkctr = smp_fetch_sc_stkctr(smp->sess, smp->strm, args, kw);
Willy Tarreau710d38c2013-07-23 00:07:04 +02002663
2664 if (!stkctr)
2665 return 0;
2666
Willy Tarreau37406352012-04-23 16:16:37 +02002667 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002668 smp->type = SMP_T_UINT;
2669 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002670 if (stkctr_entry(stkctr) != NULL) {
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002671 void *ptr;
2672
2673 /* First, update gpc0_rate if it's tracked. Second, update its
2674 * gpc0 if tracked. Returns gpc0's value otherwise the curr_ctr.
2675 */
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002676 ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0_RATE);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002677 if (ptr) {
2678 update_freq_ctr_period(&stktable_data_cast(ptr, gpc0_rate),
Willy Tarreau710d38c2013-07-23 00:07:04 +02002679 stkctr->table->data_arg[STKTABLE_DT_GPC0_RATE].u, 1);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002680 smp->data.uint = (&stktable_data_cast(ptr, gpc0_rate))->curr_ctr;
2681 }
2682
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002683 ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002684 if (ptr)
2685 smp->data.uint = ++stktable_data_cast(ptr, gpc0);
2686
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002687 }
2688 return 1;
2689}
2690
Willy Tarreau87b09662015-04-03 00:22:06 +02002691/* Clear the General Purpose Counter 0 value from the stream's tracked
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002692 * frontend counters and return its previous value into temp integer.
2693 * Supports being called as "sc[0-9]_clr_gpc0" or "src_clr_gpc0" only.
Willy Tarreauf73cd112011-08-13 01:45:16 +02002694 */
2695static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +02002696smp_fetch_sc_clr_gpc0(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreauf73cd112011-08-13 01:45:16 +02002697{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +02002698 struct stkctr *stkctr = smp_fetch_sc_stkctr(smp->sess, smp->strm, args, kw);
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002699
2700 if (!stkctr)
2701 return 0;
2702
Willy Tarreau37406352012-04-23 16:16:37 +02002703 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002704 smp->type = SMP_T_UINT;
2705 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002706 if (stkctr_entry(stkctr) != NULL) {
2707 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0);
Willy Tarreauf73cd112011-08-13 01:45:16 +02002708 if (!ptr)
2709 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002710 smp->data.uint = stktable_data_cast(ptr, gpc0);
Willy Tarreauf73cd112011-08-13 01:45:16 +02002711 stktable_data_cast(ptr, gpc0) = 0;
2712 }
2713 return 1;
2714}
2715
Willy Tarreau87b09662015-04-03 00:22:06 +02002716/* set <smp> to the cumulated number of connections from the stream's tracked
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002717 * frontend counters. Supports being called as "sc[0-9]_conn_cnt" or
2718 * "src_conn_cnt" only.
2719 */
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002720static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +02002721smp_fetch_sc_conn_cnt(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002722{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +02002723 struct stkctr *stkctr = smp_fetch_sc_stkctr(smp->sess, smp->strm, args, kw);
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002724
2725 if (!stkctr)
2726 return 0;
2727
Willy Tarreau37406352012-04-23 16:16:37 +02002728 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002729 smp->type = SMP_T_UINT;
2730 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002731 if (stkctr_entry(stkctr) != NULL) {
2732 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_CONN_CNT);
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002733 if (!ptr)
2734 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002735 smp->data.uint = stktable_data_cast(ptr, conn_cnt);
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002736 }
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002737 return 1;
2738}
2739
Willy Tarreau87b09662015-04-03 00:22:06 +02002740/* set <smp> to the connection rate from the stream's tracked frontend
Willy Tarreauc8c65702013-07-23 15:09:35 +02002741 * counters. Supports being called as "sc[0-9]_conn_rate" or "src_conn_rate"
2742 * only.
2743 */
Willy Tarreau91c43d72010-06-20 11:19:22 +02002744static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +02002745smp_fetch_sc_conn_rate(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau91c43d72010-06-20 11:19:22 +02002746{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +02002747 struct stkctr *stkctr = smp_fetch_sc_stkctr(smp->sess, smp->strm, args, kw);
Willy Tarreauc8c65702013-07-23 15:09:35 +02002748
2749 if (!stkctr)
2750 return 0;
2751
Willy Tarreau37406352012-04-23 16:16:37 +02002752 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002753 smp->type = SMP_T_UINT;
2754 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002755 if (stkctr_entry(stkctr) != NULL) {
2756 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_CONN_RATE);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002757 if (!ptr)
2758 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002759 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, conn_rate),
Willy Tarreauc8c65702013-07-23 15:09:35 +02002760 stkctr->table->data_arg[STKTABLE_DT_CONN_RATE].u);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002761 }
2762 return 1;
2763}
2764
Willy Tarreau87b09662015-04-03 00:22:06 +02002765/* set temp integer to the number of connections from the stream's source address
Willy Tarreau8b22a712010-06-18 17:46:06 +02002766 * in the table pointed to by expr, after updating it.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02002767 * Accepts exactly 1 argument of type table.
Willy Tarreau8b22a712010-06-18 17:46:06 +02002768 */
2769static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +02002770smp_fetch_src_updt_conn_cnt(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau8b22a712010-06-18 17:46:06 +02002771{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +02002772 struct connection *conn = objt_conn(smp->sess->origin);
Willy Tarreau8b22a712010-06-18 17:46:06 +02002773 struct stksess *ts;
2774 struct stktable_key *key;
2775 void *ptr;
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +02002776 struct proxy *px;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002777
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002778 if (!conn)
2779 return 0;
2780
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +02002781 key = addr_to_stktable_key(&conn->addr.from, smp->px->table.type);
Willy Tarreau8b22a712010-06-18 17:46:06 +02002782 if (!key)
David du Colombier4f92d322011-03-24 11:09:31 +01002783 return 0;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002784
Willy Tarreau24e32d82012-04-23 23:55:44 +02002785 px = args->data.prx;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002786
Willy Tarreau1f7e9252010-06-20 12:27:21 +02002787 if ((ts = stktable_update_key(&px->table, key)) == NULL)
2788 /* entry does not exist and could not be created */
2789 return 0;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002790
2791 ptr = stktable_data_ptr(&px->table, ts, STKTABLE_DT_CONN_CNT);
2792 if (!ptr)
2793 return 0; /* parameter not stored in this table */
2794
Willy Tarreauf853c462012-04-23 18:53:56 +02002795 smp->type = SMP_T_UINT;
2796 smp->data.uint = ++stktable_data_cast(ptr, conn_cnt);
Willy Tarreau37406352012-04-23 16:16:37 +02002797 smp->flags = SMP_F_VOL_TEST;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002798 return 1;
2799}
2800
Willy Tarreau87b09662015-04-03 00:22:06 +02002801/* set <smp> to the number of concurrent connections from the stream's tracked
Willy Tarreauf44a5532013-07-23 15:17:53 +02002802 * frontend counters. Supports being called as "sc[0-9]_conn_cur" or
2803 * "src_conn_cur" only.
2804 */
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002805static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +02002806smp_fetch_sc_conn_cur(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002807{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +02002808 struct stkctr *stkctr = smp_fetch_sc_stkctr(smp->sess, smp->strm, args, kw);
Willy Tarreauf44a5532013-07-23 15:17:53 +02002809
2810 if (!stkctr)
2811 return 0;
2812
Willy Tarreau37406352012-04-23 16:16:37 +02002813 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002814 smp->type = SMP_T_UINT;
2815 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002816 if (stkctr_entry(stkctr) != NULL) {
2817 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_CONN_CUR);
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002818 if (!ptr)
2819 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002820 smp->data.uint = stktable_data_cast(ptr, conn_cur);
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002821 }
2822 return 1;
2823}
2824
Willy Tarreau87b09662015-04-03 00:22:06 +02002825/* set <smp> to the cumulated number of streams from the stream's tracked
Willy Tarreau20843082013-07-23 15:35:33 +02002826 * frontend counters. Supports being called as "sc[0-9]_sess_cnt" or
2827 * "src_sess_cnt" only.
2828 */
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002829static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +02002830smp_fetch_sc_sess_cnt(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002831{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +02002832 struct stkctr *stkctr = smp_fetch_sc_stkctr(smp->sess, smp->strm, args, kw);
Willy Tarreau20843082013-07-23 15:35:33 +02002833
2834 if (!stkctr)
2835 return 0;
2836
Willy Tarreau37406352012-04-23 16:16:37 +02002837 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002838 smp->type = SMP_T_UINT;
2839 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002840 if (stkctr_entry(stkctr) != NULL) {
2841 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_SESS_CNT);
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002842 if (!ptr)
2843 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002844 smp->data.uint = stktable_data_cast(ptr, sess_cnt);
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002845 }
2846 return 1;
2847}
2848
Willy Tarreau87b09662015-04-03 00:22:06 +02002849/* set <smp> to the stream rate from the stream's tracked frontend counters.
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002850 * Supports being called as "sc[0-9]_sess_rate" or "src_sess_rate" only.
2851 */
Willy Tarreau91c43d72010-06-20 11:19:22 +02002852static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +02002853smp_fetch_sc_sess_rate(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau91c43d72010-06-20 11:19:22 +02002854{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +02002855 struct stkctr *stkctr = smp_fetch_sc_stkctr(smp->sess, smp->strm, args, kw);
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002856
2857 if (!stkctr)
2858 return 0;
2859
Willy Tarreau37406352012-04-23 16:16:37 +02002860 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002861 smp->type = SMP_T_UINT;
2862 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002863 if (stkctr_entry(stkctr) != NULL) {
2864 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_SESS_RATE);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002865 if (!ptr)
2866 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002867 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, sess_rate),
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002868 stkctr->table->data_arg[STKTABLE_DT_SESS_RATE].u);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002869 }
2870 return 1;
2871}
2872
Willy Tarreau87b09662015-04-03 00:22:06 +02002873/* set <smp> to the cumulated number of HTTP requests from the stream's tracked
Willy Tarreau91200da2013-07-23 15:55:19 +02002874 * frontend counters. Supports being called as "sc[0-9]_http_req_cnt" or
2875 * "src_http_req_cnt" only.
2876 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02002877static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +02002878smp_fetch_sc_http_req_cnt(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreauda7ff642010-06-23 11:44:09 +02002879{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +02002880 struct stkctr *stkctr = smp_fetch_sc_stkctr(smp->sess, smp->strm, args, kw);
Willy Tarreau91200da2013-07-23 15:55:19 +02002881
2882 if (!stkctr)
2883 return 0;
2884
Willy Tarreau37406352012-04-23 16:16:37 +02002885 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002886 smp->type = SMP_T_UINT;
2887 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002888 if (stkctr_entry(stkctr) != NULL) {
2889 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_HTTP_REQ_CNT);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002890 if (!ptr)
2891 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002892 smp->data.uint = stktable_data_cast(ptr, http_req_cnt);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002893 }
2894 return 1;
2895}
2896
Willy Tarreau87b09662015-04-03 00:22:06 +02002897/* set <smp> to the HTTP request rate from the stream's tracked frontend
Willy Tarreaucf477632013-07-23 16:04:37 +02002898 * counters. Supports being called as "sc[0-9]_http_req_rate" or
2899 * "src_http_req_rate" only.
2900 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02002901static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +02002902smp_fetch_sc_http_req_rate(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreauda7ff642010-06-23 11:44:09 +02002903{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +02002904 struct stkctr *stkctr = smp_fetch_sc_stkctr(smp->sess, smp->strm, args, kw);
Willy Tarreaucf477632013-07-23 16:04:37 +02002905
2906 if (!stkctr)
2907 return 0;
2908
Willy Tarreau37406352012-04-23 16:16:37 +02002909 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002910 smp->type = SMP_T_UINT;
2911 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002912 if (stkctr_entry(stkctr) != NULL) {
2913 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_HTTP_REQ_RATE);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002914 if (!ptr)
2915 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002916 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, http_req_rate),
Willy Tarreaucf477632013-07-23 16:04:37 +02002917 stkctr->table->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002918 }
2919 return 1;
2920}
2921
Willy Tarreau87b09662015-04-03 00:22:06 +02002922/* set <smp> to the cumulated number of HTTP requests errors from the stream's
Willy Tarreau30d07c32013-07-23 16:45:38 +02002923 * tracked frontend counters. Supports being called as "sc[0-9]_http_err_cnt" or
2924 * "src_http_err_cnt" only.
2925 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02002926static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +02002927smp_fetch_sc_http_err_cnt(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreauda7ff642010-06-23 11:44:09 +02002928{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +02002929 struct stkctr *stkctr = smp_fetch_sc_stkctr(smp->sess, smp->strm, args, kw);
Willy Tarreau30d07c32013-07-23 16:45:38 +02002930
2931 if (!stkctr)
2932 return 0;
2933
Willy Tarreau37406352012-04-23 16:16:37 +02002934 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002935 smp->type = SMP_T_UINT;
2936 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002937 if (stkctr_entry(stkctr) != NULL) {
2938 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_HTTP_ERR_CNT);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002939 if (!ptr)
2940 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002941 smp->data.uint = stktable_data_cast(ptr, http_err_cnt);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002942 }
2943 return 1;
2944}
2945
Willy Tarreau87b09662015-04-03 00:22:06 +02002946/* set <smp> to the HTTP request error rate from the stream's tracked frontend
Willy Tarreau9daf2622013-07-23 16:48:54 +02002947 * counters. Supports being called as "sc[0-9]_http_err_rate" or
2948 * "src_http_err_rate" only.
2949 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02002950static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +02002951smp_fetch_sc_http_err_rate(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreauda7ff642010-06-23 11:44:09 +02002952{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +02002953 struct stkctr *stkctr = smp_fetch_sc_stkctr(smp->sess, smp->strm, args, kw);
Willy Tarreau9daf2622013-07-23 16:48:54 +02002954
2955 if (!stkctr)
2956 return 0;
2957
Willy Tarreau37406352012-04-23 16:16:37 +02002958 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002959 smp->type = SMP_T_UINT;
2960 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002961 if (stkctr_entry(stkctr) != NULL) {
2962 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_HTTP_ERR_RATE);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002963 if (!ptr)
2964 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002965 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, http_err_rate),
Willy Tarreau9daf2622013-07-23 16:48:54 +02002966 stkctr->table->data_arg[STKTABLE_DT_HTTP_ERR_RATE].u);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002967 }
2968 return 1;
2969}
2970
Willy Tarreau5077d4b2013-07-23 17:17:10 +02002971/* set <smp> to the number of kbytes received from clients, as found in the
Willy Tarreau87b09662015-04-03 00:22:06 +02002972 * stream's tracked frontend counters. Supports being called as
Willy Tarreau5077d4b2013-07-23 17:17:10 +02002973 * "sc[0-9]_kbytes_in" or "src_kbytes_in" only.
2974 */
Willy Tarreau1aa006f2010-06-18 21:52:52 +02002975static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +02002976smp_fetch_sc_kbytes_in(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau1aa006f2010-06-18 21:52:52 +02002977{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +02002978 struct stkctr *stkctr = smp_fetch_sc_stkctr(smp->sess, smp->strm, args, kw);
Willy Tarreau5077d4b2013-07-23 17:17:10 +02002979
2980 if (!stkctr)
2981 return 0;
2982
Willy Tarreau37406352012-04-23 16:16:37 +02002983 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002984 smp->type = SMP_T_UINT;
2985 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002986 if (stkctr_entry(stkctr) != NULL) {
2987 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_IN_CNT);
Willy Tarreau1aa006f2010-06-18 21:52:52 +02002988 if (!ptr)
2989 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002990 smp->data.uint = stktable_data_cast(ptr, bytes_in_cnt) >> 10;
Willy Tarreau1aa006f2010-06-18 21:52:52 +02002991 }
2992 return 1;
2993}
2994
Willy Tarreau613fe992013-07-23 17:39:19 +02002995/* set <smp> to the data rate received from clients in bytes/s, as found
Willy Tarreau87b09662015-04-03 00:22:06 +02002996 * in the stream's tracked frontend counters. Supports being called as
Willy Tarreau613fe992013-07-23 17:39:19 +02002997 * "sc[0-9]_bytes_in_rate" or "src_bytes_in_rate" only.
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02002998 */
2999static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +02003000smp_fetch_sc_bytes_in_rate(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003001{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +02003002 struct stkctr *stkctr = smp_fetch_sc_stkctr(smp->sess, smp->strm, args, kw);
Willy Tarreau613fe992013-07-23 17:39:19 +02003003
3004 if (!stkctr)
3005 return 0;
3006
Willy Tarreau37406352012-04-23 16:16:37 +02003007 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003008 smp->type = SMP_T_UINT;
3009 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003010 if (stkctr_entry(stkctr) != NULL) {
3011 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_IN_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003012 if (!ptr)
3013 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003014 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, bytes_in_rate),
Willy Tarreau613fe992013-07-23 17:39:19 +02003015 stkctr->table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003016 }
3017 return 1;
3018}
3019
Willy Tarreau53aea102013-07-23 17:39:02 +02003020/* set <smp> to the number of kbytes sent to clients, as found in the
Willy Tarreau87b09662015-04-03 00:22:06 +02003021 * stream's tracked frontend counters. Supports being called as
Willy Tarreau53aea102013-07-23 17:39:02 +02003022 * "sc[0-9]_kbytes_out" or "src_kbytes_out" only.
3023 */
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003024static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +02003025smp_fetch_sc_kbytes_out(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003026{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +02003027 struct stkctr *stkctr = smp_fetch_sc_stkctr(smp->sess, smp->strm, args, kw);
Willy Tarreau53aea102013-07-23 17:39:02 +02003028
3029 if (!stkctr)
3030 return 0;
3031
Willy Tarreau37406352012-04-23 16:16:37 +02003032 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003033 smp->type = SMP_T_UINT;
3034 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003035 if (stkctr_entry(stkctr) != NULL) {
3036 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_OUT_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003037 if (!ptr)
3038 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003039 smp->data.uint = stktable_data_cast(ptr, bytes_out_cnt) >> 10;
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003040 }
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003041 return 1;
3042}
3043
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003044/* set <smp> to the data rate sent to clients in bytes/s, as found in the
Willy Tarreau87b09662015-04-03 00:22:06 +02003045 * stream's tracked frontend counters. Supports being called as
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003046 * "sc[0-9]_bytes_out_rate" or "src_bytes_out_rate" only.
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003047 */
3048static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +02003049smp_fetch_sc_bytes_out_rate(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003050{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +02003051 struct stkctr *stkctr = smp_fetch_sc_stkctr(smp->sess, smp->strm, args, kw);
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003052
3053 if (!stkctr)
3054 return 0;
3055
Willy Tarreau37406352012-04-23 16:16:37 +02003056 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003057 smp->type = SMP_T_UINT;
3058 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003059 if (stkctr_entry(stkctr) != NULL) {
3060 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_OUT_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003061 if (!ptr)
3062 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003063 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, bytes_out_rate),
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003064 stkctr->table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003065 }
3066 return 1;
3067}
3068
Willy Tarreau87b09662015-04-03 00:22:06 +02003069/* set <smp> to the number of active trackers on the SC entry in the stream's
Willy Tarreau563eef42013-07-23 18:32:02 +02003070 * tracked frontend counters. Supports being called as "sc[0-9]_trackers" only.
3071 */
Willy Tarreau2406db42012-12-09 12:16:43 +01003072static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +02003073smp_fetch_sc_trackers(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreau2406db42012-12-09 12:16:43 +01003074{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +02003075 struct stkctr *stkctr = smp_fetch_sc_stkctr(smp->sess, smp->strm, args, kw);
Willy Tarreau2406db42012-12-09 12:16:43 +01003076
Willy Tarreau563eef42013-07-23 18:32:02 +02003077 if (!stkctr)
Willy Tarreau2406db42012-12-09 12:16:43 +01003078 return 0;
3079
Willy Tarreau563eef42013-07-23 18:32:02 +02003080 smp->flags = SMP_F_VOL_TEST;
3081 smp->type = SMP_T_UINT;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003082 smp->data.uint = stkctr_entry(stkctr)->ref_cnt;
Willy Tarreau563eef42013-07-23 18:32:02 +02003083 return 1;
Willy Tarreaue25c9172013-05-28 18:32:20 +02003084}
3085
Willy Tarreau34db1082012-04-19 17:16:54 +02003086/* set temp integer to the number of used entries in the table pointed to by expr.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02003087 * Accepts exactly 1 argument of type table.
Willy Tarreau34db1082012-04-19 17:16:54 +02003088 */
Willy Tarreauc735a072011-03-29 00:57:02 +02003089static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +02003090smp_fetch_table_cnt(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreauc735a072011-03-29 00:57:02 +02003091{
Willy Tarreau37406352012-04-23 16:16:37 +02003092 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003093 smp->type = SMP_T_UINT;
Willy Tarreau24e32d82012-04-23 23:55:44 +02003094 smp->data.uint = args->data.prx->table.current;
Willy Tarreauc735a072011-03-29 00:57:02 +02003095 return 1;
3096}
3097
Willy Tarreau34db1082012-04-19 17:16:54 +02003098/* set temp integer to the number of free entries in the table pointed to by expr.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02003099 * Accepts exactly 1 argument of type table.
Willy Tarreau34db1082012-04-19 17:16:54 +02003100 */
Willy Tarreauc735a072011-03-29 00:57:02 +02003101static int
Thierry FOURNIER0786d052015-05-11 15:42:45 +02003102smp_fetch_table_avl(const struct arg *args, struct sample *smp, const char *kw, void *private)
Willy Tarreauc735a072011-03-29 00:57:02 +02003103{
Thierry FOURNIER0a9a2b82015-05-11 15:20:49 +02003104 struct proxy *px;
3105
Willy Tarreau24e32d82012-04-23 23:55:44 +02003106 px = args->data.prx;
Willy Tarreau37406352012-04-23 16:16:37 +02003107 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003108 smp->type = SMP_T_UINT;
3109 smp->data.uint = px->table.size - px->table.current;
Willy Tarreauc735a072011-03-29 00:57:02 +02003110 return 1;
3111}
Willy Tarreau8b22a712010-06-18 17:46:06 +02003112
Willy Tarreau61612d42012-04-19 18:42:05 +02003113/* Note: must not be declared <const> as its list will be overwritten.
3114 * Please take care of keeping this list alphabetically sorted.
3115 */
Willy Tarreaudc13c112013-06-21 23:16:39 +02003116static struct acl_kw_list acl_kws = {ILH, {
Willy Tarreau281c7992013-01-08 01:23:27 +01003117 { /* END */ },
Willy Tarreau8b22a712010-06-18 17:46:06 +02003118}};
3119
Willy Tarreau281c7992013-01-08 01:23:27 +01003120/* Note: must not be declared <const> as its list will be overwritten.
3121 * Please take care of keeping this list alphabetically sorted.
3122 */
Willy Tarreaudc13c112013-06-21 23:16:39 +02003123static struct sample_fetch_kw_list smp_fetch_keywords = {ILH, {
Willy Tarreau0f791d42013-07-23 19:56:43 +02003124 { "sc_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3125 { "sc_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3126 { "sc_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3127 { "sc_conn_cnt", smp_fetch_sc_conn_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3128 { "sc_conn_cur", smp_fetch_sc_conn_cur, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3129 { "sc_conn_rate", smp_fetch_sc_conn_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3130 { "sc_get_gpc0", smp_fetch_sc_get_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3131 { "sc_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3132 { "sc_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3133 { "sc_http_err_rate", smp_fetch_sc_http_err_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3134 { "sc_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3135 { "sc_http_req_rate", smp_fetch_sc_http_req_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3136 { "sc_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3137 { "sc_kbytes_in", smp_fetch_sc_kbytes_in, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3138 { "sc_kbytes_out", smp_fetch_sc_kbytes_out, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3139 { "sc_sess_cnt", smp_fetch_sc_sess_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3140 { "sc_sess_rate", smp_fetch_sc_sess_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3141 { "sc_tracked", smp_fetch_sc_tracked, ARG2(1,UINT,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3142 { "sc_trackers", smp_fetch_sc_trackers, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3143 { "sc0_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3144 { "sc0_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3145 { "sc0_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3146 { "sc0_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3147 { "sc0_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3148 { "sc0_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3149 { "sc0_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3150 { "sc0_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3151 { "sc0_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3152 { "sc0_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3153 { "sc0_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3154 { "sc0_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3155 { "sc0_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3156 { "sc0_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3157 { "sc0_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3158 { "sc0_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3159 { "sc0_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3160 { "sc0_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3161 { "sc0_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3162 { "sc1_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3163 { "sc1_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3164 { "sc1_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3165 { "sc1_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3166 { "sc1_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3167 { "sc1_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3168 { "sc1_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3169 { "sc1_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3170 { "sc1_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3171 { "sc1_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3172 { "sc1_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3173 { "sc1_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3174 { "sc1_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3175 { "sc1_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3176 { "sc1_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3177 { "sc1_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3178 { "sc1_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3179 { "sc1_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3180 { "sc1_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3181 { "sc2_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3182 { "sc2_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3183 { "sc2_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3184 { "sc2_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3185 { "sc2_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3186 { "sc2_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3187 { "sc2_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3188 { "sc2_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3189 { "sc2_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3190 { "sc2_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3191 { "sc2_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3192 { "sc2_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3193 { "sc2_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3194 { "sc2_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3195 { "sc2_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3196 { "sc2_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3197 { "sc2_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3198 { "sc2_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3199 { "sc2_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3200 { "src_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3201 { "src_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3202 { "src_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3203 { "src_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3204 { "src_conn_cur", smp_fetch_sc_conn_cur, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3205 { "src_conn_rate", smp_fetch_sc_conn_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3206 { "src_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3207 { "src_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3208 { "src_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3209 { "src_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3210 { "src_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3211 { "src_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3212 { "src_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3213 { "src_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3214 { "src_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3215 { "src_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3216 { "src_sess_rate", smp_fetch_sc_sess_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3217 { "src_updt_conn_cnt", smp_fetch_src_updt_conn_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3218 { "table_avl", smp_fetch_table_avl, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3219 { "table_cnt", smp_fetch_table_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
Willy Tarreau281c7992013-01-08 01:23:27 +01003220 { /* END */ },
3221}};
3222
Willy Tarreau8b22a712010-06-18 17:46:06 +02003223__attribute__((constructor))
Willy Tarreau87b09662015-04-03 00:22:06 +02003224static void __stream_init(void)
Willy Tarreau8b22a712010-06-18 17:46:06 +02003225{
Willy Tarreau281c7992013-01-08 01:23:27 +01003226 sample_register_fetches(&smp_fetch_keywords);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003227 acl_register_keywords(&acl_kws);
3228}
3229
Willy Tarreaubaaee002006-06-26 02:48:02 +02003230/*
3231 * Local variables:
3232 * c-indent-level: 8
3233 * c-basic-offset: 8
3234 * End:
3235 */