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Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
Willy Tarreau81f9aa32010-06-01 17:45:26 +02002 * Session management functions.
Willy Tarreaubaaee002006-06-26 02:48:02 +02003 *
Willy Tarreau81f9aa32010-06-01 17:45:26 +02004 * Copyright 2000-2010 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 Tarreau7c669d72008-06-20 15:04:11 +020018#include <common/debug.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020019#include <common/memory.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020020
Willy Tarreaubaaee002006-06-26 02:48:02 +020021#include <types/capture.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010022#include <types/global.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020023
Willy Tarreau1d0dfb12009-07-07 15:10:31 +020024#include <proto/acl.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010025#include <proto/backend.h>
Willy Tarreau7341d942007-05-13 19:56:02 +020026#include <proto/buffers.h>
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +010027#include <proto/checks.h>
Willy Tarreau5ca791d2009-08-16 19:06:42 +020028#include <proto/dumpstats.h>
Willy Tarreau91c43d72010-06-20 11:19:22 +020029#include <proto/freq_ctr.h>
Willy Tarreau3041b9f2010-10-15 23:25:20 +020030#include <proto/frontend.h>
Willy Tarreau8d5d7f22007-01-21 19:16:41 +010031#include <proto/hdr_idx.h>
Willy Tarreau332f8bf2007-05-13 21:36:56 +020032#include <proto/log.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020033#include <proto/session.h>
Willy Tarreau3eba98a2009-01-25 13:56:13 +010034#include <proto/pipe.h>
Willy Tarreau62793712011-07-24 19:23:38 +020035#include <proto/protocols.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010036#include <proto/proto_http.h>
37#include <proto/proto_tcp.h>
Willy Tarreau1d0dfb12009-07-07 15:10:31 +020038#include <proto/proxy.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020039#include <proto/queue.h>
Willy Tarreau7f062c42009-03-05 18:43:00 +010040#include <proto/server.h>
Emeric Brun1d33b292010-01-04 15:47:17 +010041#include <proto/stick_table.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010042#include <proto/stream_interface.h>
43#include <proto/stream_sock.h>
44#include <proto/task.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020045
Willy Tarreauc6ca1a02007-05-13 19:43:47 +020046struct pool_head *pool2_session;
Willy Tarreauf54f8bd2008-11-23 19:53:55 +010047struct list sessions;
Willy Tarreaubaaee002006-06-26 02:48:02 +020048
Willy Tarreau81f9aa32010-06-01 17:45:26 +020049/* This function is called from the protocol layer accept() in order to instanciate
50 * a new session on behalf of a given listener and frontend. It returns a positive
Willy Tarreauabe8ea52010-11-11 10:56:04 +010051 * value upon success, 0 if the connection can be ignored, or a negative value upon
52 * critical failure. The accepted file descriptor is closed if we return <= 0.
Willy Tarreau81f9aa32010-06-01 17:45:26 +020053 */
54int session_accept(struct listener *l, int cfd, struct sockaddr_storage *addr)
55{
56 struct proxy *p = l->frontend;
57 struct session *s;
58 struct http_txn *txn;
59 struct task *t;
Willy Tarreauabe8ea52010-11-11 10:56:04 +010060 int ret;
61
62
63 ret = -1; /* assume unrecoverable error by default */
Willy Tarreau81f9aa32010-06-01 17:45:26 +020064
Willy Tarreaufffe1322010-11-11 09:48:16 +010065 if (unlikely((s = pool_alloc2(pool2_session)) == NULL))
Willy Tarreau81f9aa32010-06-01 17:45:26 +020066 goto out_close;
Willy Tarreau81f9aa32010-06-01 17:45:26 +020067
68 /* minimum session initialization required for monitor mode below */
69 s->flags = 0;
70 s->logs.logwait = p->to_log;
Willy Tarreau56123282010-08-06 19:06:56 +020071 s->stkctr1_entry = NULL;
72 s->stkctr2_entry = NULL;
73 s->stkctr1_table = NULL;
74 s->stkctr2_table = NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +020075
76 /* if this session comes from a known monitoring system, we want to ignore
77 * it as soon as possible, which means closing it immediately for TCP, but
78 * cleanly.
79 */
80 if (unlikely((l->options & LI_O_CHK_MONNET) &&
81 addr->ss_family == AF_INET &&
82 (((struct sockaddr_in *)addr)->sin_addr.s_addr & p->mon_mask.s_addr) == p->mon_net.s_addr)) {
83 if (p->mode == PR_MODE_TCP) {
Willy Tarreauabe8ea52010-11-11 10:56:04 +010084 ret = 0; /* successful termination */
85 goto out_free_session;
Willy Tarreau81f9aa32010-06-01 17:45:26 +020086 }
87 s->flags |= SN_MONITOR;
88 s->logs.logwait = 0;
89 }
90
Willy Tarreauabe8ea52010-11-11 10:56:04 +010091 if (unlikely((t = task_new()) == NULL))
92 goto out_free_session;
93
Willy Tarreau81f9aa32010-06-01 17:45:26 +020094 /* OK, we're keeping the session, so let's properly initialize the session */
95 LIST_ADDQ(&sessions, &s->list);
96 LIST_INIT(&s->back_refs);
97
Willy Tarreau81f9aa32010-06-01 17:45:26 +020098 s->term_trace = 0;
Willy Tarreau957c0a52011-03-03 17:42:23 +010099 s->si[0].addr.c.from = *addr;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200100 s->logs.accept_date = date; /* user-visible date for logging */
101 s->logs.tv_accept = now; /* corrected date for internal use */
102 s->uniq_id = totalconn;
Willy Tarreau24dcaf32010-06-05 10:49:41 +0200103 p->feconn++; /* beconn will be increased once assigned */
104
Willy Tarreaub36b4242010-06-04 20:59:39 +0200105 proxy_inc_fe_conn_ctr(l, p); /* note: cum_beconn will be increased once assigned */
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200106
107 t->process = l->handler;
108 t->context = s;
109 t->nice = l->nice;
110 t->expire = TICK_ETERNITY;
111
112 s->task = t;
113 s->listener = l;
114
115 /* Note: initially, the session's backend points to the frontend.
116 * This changes later when switching rules are executed or
117 * when the default backend is assigned.
118 */
119 s->be = s->fe = p;
120 s->req = s->rep = NULL; /* will be allocated later */
121
122 /* now evaluate the tcp-request layer4 rules. Since we expect to be able
123 * to abort right here as soon as possible, we check the rules before
124 * even initializing the stream interfaces.
125 */
126 if ((l->options & LI_O_TCP_RULES) && !tcp_exec_req_rules(s)) {
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200127 /* let's do a no-linger now to close with a single RST. */
128 setsockopt(cfd, SOL_SOCKET, SO_LINGER, (struct linger *) &nolinger, sizeof(struct linger));
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100129 ret = 0; /* successful termination */
130 goto out_free_task;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200131 }
132
Willy Tarreaub36b4242010-06-04 20:59:39 +0200133 /* This session was accepted, count it now */
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100134 if (p->feconn > p->fe_counters.conn_max)
135 p->fe_counters.conn_max = p->feconn;
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100136
Willy Tarreaub36b4242010-06-04 20:59:39 +0200137 proxy_inc_fe_sess_ctr(l, p);
Willy Tarreau56123282010-08-06 19:06:56 +0200138 if (s->stkctr1_entry) {
Willy Tarreau91c43d72010-06-20 11:19:22 +0200139 void *ptr;
140
Willy Tarreau56123282010-08-06 19:06:56 +0200141 ptr = stktable_data_ptr(s->stkctr1_table, s->stkctr1_entry, STKTABLE_DT_SESS_CNT);
Willy Tarreauf4d17d92010-06-18 22:10:12 +0200142 if (ptr)
143 stktable_data_cast(ptr, sess_cnt)++;
Willy Tarreau91c43d72010-06-20 11:19:22 +0200144
Willy Tarreau56123282010-08-06 19:06:56 +0200145 ptr = stktable_data_ptr(s->stkctr1_table, s->stkctr1_entry, STKTABLE_DT_SESS_RATE);
Willy Tarreau91c43d72010-06-20 11:19:22 +0200146 if (ptr)
147 update_freq_ctr_period(&stktable_data_cast(ptr, sess_rate),
Willy Tarreau56123282010-08-06 19:06:56 +0200148 s->stkctr1_table->data_arg[STKTABLE_DT_SESS_RATE].u, 1);
Willy Tarreauf4d17d92010-06-18 22:10:12 +0200149 }
Willy Tarreaub36b4242010-06-04 20:59:39 +0200150
Willy Tarreau56123282010-08-06 19:06:56 +0200151 if (s->stkctr2_entry) {
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200152 void *ptr;
153
Willy Tarreau56123282010-08-06 19:06:56 +0200154 ptr = stktable_data_ptr(s->stkctr2_table, s->stkctr2_entry, STKTABLE_DT_SESS_CNT);
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200155 if (ptr)
156 stktable_data_cast(ptr, sess_cnt)++;
157
Willy Tarreau56123282010-08-06 19:06:56 +0200158 ptr = stktable_data_ptr(s->stkctr2_table, s->stkctr2_entry, STKTABLE_DT_SESS_RATE);
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200159 if (ptr)
160 update_freq_ctr_period(&stktable_data_cast(ptr, sess_rate),
Willy Tarreau56123282010-08-06 19:06:56 +0200161 s->stkctr2_table->data_arg[STKTABLE_DT_SESS_RATE].u, 1);
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200162 }
163
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200164 /* this part should be common with other protocols */
165 s->si[0].fd = cfd;
166 s->si[0].owner = t;
167 s->si[0].state = s->si[0].prev_state = SI_ST_EST;
168 s->si[0].err_type = SI_ET_NONE;
169 s->si[0].err_loc = NULL;
170 s->si[0].connect = NULL;
Willy Tarreau0bd05ea2010-07-02 11:18:03 +0200171 s->si[0].release = NULL;
Willy Tarreau9e000c62011-03-10 14:03:36 +0100172 clear_target(&s->si[0].target);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200173 s->si[0].exp = TICK_ETERNITY;
174 s->si[0].flags = SI_FL_NONE;
175
176 if (likely(s->fe->options2 & PR_O2_INDEPSTR))
177 s->si[0].flags |= SI_FL_INDEP_STR;
178
179 if (addr->ss_family == AF_INET || addr->ss_family == AF_INET6)
180 s->si[0].flags = SI_FL_CAP_SPLTCP; /* TCP/TCPv6 splicing possible */
181
182 /* add the various callbacks */
183 stream_sock_prepare_interface(&s->si[0]);
184
185 /* pre-initialize the other side's stream interface to an INIT state. The
186 * callbacks will be initialized before attempting to connect.
187 */
188 s->si[1].fd = -1; /* just to help with debugging */
189 s->si[1].owner = t;
190 s->si[1].state = s->si[1].prev_state = SI_ST_INI;
191 s->si[1].err_type = SI_ET_NONE;
Willy Tarreau0b3a4112011-03-27 19:16:56 +0200192 s->si[1].conn_retries = 0; /* used for logging too */
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200193 s->si[1].err_loc = NULL;
194 s->si[1].connect = NULL;
Willy Tarreau0bd05ea2010-07-02 11:18:03 +0200195 s->si[1].release = NULL;
Willy Tarreau9e000c62011-03-10 14:03:36 +0100196 clear_target(&s->si[1].target);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200197 s->si[1].shutr = stream_int_shutr;
198 s->si[1].shutw = stream_int_shutw;
199 s->si[1].exp = TICK_ETERNITY;
200 s->si[1].flags = SI_FL_NONE;
201
202 if (likely(s->fe->options2 & PR_O2_INDEPSTR))
203 s->si[1].flags |= SI_FL_INDEP_STR;
204
Willy Tarreau9bd0d742011-07-20 00:17:39 +0200205 session_init_srv_conn(s);
Willy Tarreau9e000c62011-03-10 14:03:36 +0100206 clear_target(&s->target);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200207 s->pend_pos = NULL;
208
209 /* init store persistence */
210 s->store_count = 0;
211
212 /* Adjust some socket options */
Willy Tarreaufffe1322010-11-11 09:48:16 +0100213 if (unlikely(fcntl(cfd, F_SETFL, O_NONBLOCK) == -1))
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200214 goto out_free_task;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200215
216 txn = &s->txn;
217 /* Those variables will be checked and freed if non-NULL in
218 * session.c:session_free(). It is important that they are
219 * properly initialized.
220 */
221 txn->sessid = NULL;
222 txn->srv_cookie = NULL;
223 txn->cli_cookie = NULL;
224 txn->uri = NULL;
225 txn->req.cap = NULL;
226 txn->rsp.cap = NULL;
227 txn->hdr_idx.v = NULL;
228 txn->hdr_idx.size = txn->hdr_idx.used = 0;
229
230 if (unlikely((s->req = pool_alloc2(pool2_buffer)) == NULL))
231 goto out_free_task; /* no memory */
232
233 if (unlikely((s->rep = pool_alloc2(pool2_buffer)) == NULL))
234 goto out_free_req; /* no memory */
235
236 /* initialize the request buffer */
237 s->req->size = global.tune.bufsize;
238 buffer_init(s->req);
239 s->req->prod = &s->si[0];
240 s->req->cons = &s->si[1];
241 s->si[0].ib = s->si[1].ob = s->req;
242 s->req->flags |= BF_READ_ATTACHED; /* the producer is already connected */
243
244 /* activate default analysers enabled for this listener */
245 s->req->analysers = l->analysers;
246
247 s->req->wto = TICK_ETERNITY;
248 s->req->rto = TICK_ETERNITY;
249 s->req->rex = TICK_ETERNITY;
250 s->req->wex = TICK_ETERNITY;
251 s->req->analyse_exp = TICK_ETERNITY;
252
253 /* initialize response buffer */
254 s->rep->size = global.tune.bufsize;
255 buffer_init(s->rep);
256 s->rep->prod = &s->si[1];
257 s->rep->cons = &s->si[0];
258 s->si[0].ob = s->si[1].ib = s->rep;
259 s->rep->analysers = 0;
260
Willy Tarreau96e31212011-05-30 18:10:30 +0200261 if (s->fe->options2 & PR_O2_NODELAY) {
262 s->req->flags |= BF_NEVER_WAIT;
263 s->rep->flags |= BF_NEVER_WAIT;
264 }
265
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200266 s->rep->rto = TICK_ETERNITY;
267 s->rep->wto = TICK_ETERNITY;
268 s->rep->rex = TICK_ETERNITY;
269 s->rep->wex = TICK_ETERNITY;
270 s->rep->analyse_exp = TICK_ETERNITY;
271
272 /* finish initialization of the accepted file descriptor */
273 fd_insert(cfd);
274 fdtab[cfd].owner = &s->si[0];
275 fdtab[cfd].state = FD_STREADY;
276 fdtab[cfd].flags = 0;
277 fdtab[cfd].cb[DIR_RD].f = l->proto->read;
278 fdtab[cfd].cb[DIR_RD].b = s->req;
279 fdtab[cfd].cb[DIR_WR].f = l->proto->write;
280 fdtab[cfd].cb[DIR_WR].b = s->rep;
Willy Tarreau957c0a52011-03-03 17:42:23 +0100281 fdinfo[cfd].peeraddr = (struct sockaddr *)&s->si[0].addr.c.from;
282 fdinfo[cfd].peerlen = sizeof(s->si[0].addr.c.from);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200283 EV_FD_SET(cfd, DIR_RD);
284
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100285 if (p->accept && (ret = p->accept(s)) <= 0) {
286 /* Either we had an unrecoverable error (<0) or work is
287 * finished (=0, eg: monitoring), in both situations,
288 * we can release everything and close.
289 */
290 goto out_free_rep;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200291 }
292
293 /* it is important not to call the wakeup function directly but to
294 * pass through task_wakeup(), because this one knows how to apply
295 * priorities to tasks.
296 */
297 task_wakeup(t, TASK_WOKEN_INIT);
298 return 1;
299
300 /* Error unrolling */
301 out_free_rep:
302 pool_free2(pool2_buffer, s->rep);
303 out_free_req:
304 pool_free2(pool2_buffer, s->req);
305 out_free_task:
Willy Tarreau24dcaf32010-06-05 10:49:41 +0200306 p->feconn--;
Willy Tarreau56123282010-08-06 19:06:56 +0200307 if (s->stkctr1_entry || s->stkctr2_entry)
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +0200308 session_store_counters(s);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200309 task_free(t);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200310 LIST_DEL(&s->list);
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100311 out_free_session:
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200312 pool_free2(pool2_session, s);
313 out_close:
Willy Tarreau2b154922011-07-22 17:36:27 +0200314 if (ret < 0 && s->fe->mode == PR_MODE_HTTP) {
315 /* critical error, no more memory, try to emit a 500 response */
316 struct chunk *err_msg = error_message(s, HTTP_ERR_500);
317 send(cfd, err_msg->str, err_msg->len, MSG_DONTWAIT|MSG_NOSIGNAL);
318 }
319
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100320 if (fdtab[cfd].state != FD_STCLOSE)
321 fd_delete(cfd);
322 else
323 close(cfd);
324 return ret;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200325}
326
Willy Tarreaubaaee002006-06-26 02:48:02 +0200327/*
328 * frees the context associated to a session. It must have been removed first.
329 */
Simon Hormandec5be42011-06-08 09:19:07 +0900330static void session_free(struct session *s)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200331{
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100332 struct http_txn *txn = &s->txn;
Willy Tarreau632f5a72007-07-11 10:42:35 +0200333 struct proxy *fe = s->fe;
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100334 struct bref *bref, *back;
Willy Tarreaua4cda672010-06-06 18:28:49 +0200335 int i;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100336
Willy Tarreaubaaee002006-06-26 02:48:02 +0200337 if (s->pend_pos)
338 pendconn_free(s->pend_pos);
Willy Tarreau922a8062008-12-04 09:33:58 +0100339
Willy Tarreau827aee92011-03-10 16:55:02 +0100340 if (target_srv(&s->target)) { /* there may be requests left pending in queue */
Willy Tarreau1e62de62008-11-11 20:20:02 +0100341 if (s->flags & SN_CURR_SESS) {
342 s->flags &= ~SN_CURR_SESS;
Willy Tarreau827aee92011-03-10 16:55:02 +0100343 target_srv(&s->target)->cur_sess--;
Willy Tarreau1e62de62008-11-11 20:20:02 +0100344 }
Willy Tarreau827aee92011-03-10 16:55:02 +0100345 if (may_dequeue_tasks(target_srv(&s->target), s->be))
346 process_srv_queue(target_srv(&s->target));
Willy Tarreau1e62de62008-11-11 20:20:02 +0100347 }
Willy Tarreau922a8062008-12-04 09:33:58 +0100348
Willy Tarreau7c669d72008-06-20 15:04:11 +0200349 if (unlikely(s->srv_conn)) {
350 /* the session still has a reserved slot on a server, but
351 * it should normally be only the same as the one above,
352 * so this should not happen in fact.
353 */
354 sess_change_server(s, NULL);
355 }
356
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100357 if (s->req->pipe)
358 put_pipe(s->req->pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100359
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100360 if (s->rep->pipe)
361 put_pipe(s->rep->pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100362
Willy Tarreau48d63db2008-08-03 17:41:33 +0200363 pool_free2(pool2_buffer, s->req);
364 pool_free2(pool2_buffer, s->rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200365
Willy Tarreau46023632010-01-07 22:51:47 +0100366 http_end_txn(s);
367
Willy Tarreaua4cda672010-06-06 18:28:49 +0200368 for (i = 0; i < s->store_count; i++) {
369 if (!s->store[i].ts)
370 continue;
371 stksess_free(s->store[i].table, s->store[i].ts);
372 s->store[i].ts = NULL;
373 }
374
Willy Tarreau92fb9832007-10-16 17:34:28 +0200375 if (fe) {
Willy Tarreau48d63db2008-08-03 17:41:33 +0200376 pool_free2(fe->hdr_idx_pool, txn->hdr_idx.v);
Willy Tarreau46023632010-01-07 22:51:47 +0100377 pool_free2(fe->rsp_cap_pool, txn->rsp.cap);
378 pool_free2(fe->req_cap_pool, txn->req.cap);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200379 }
Willy Tarreau0937bc42009-12-22 15:03:09 +0100380
Willy Tarreau56123282010-08-06 19:06:56 +0200381 if (s->stkctr1_entry || s->stkctr2_entry)
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +0200382 session_store_counters(s);
383
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100384 list_for_each_entry_safe(bref, back, &s->back_refs, users) {
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100385 /* we have to unlink all watchers. We must not relink them if
386 * this session was the last one in the list.
387 */
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100388 LIST_DEL(&bref->users);
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100389 LIST_INIT(&bref->users);
390 if (s->list.n != &sessions)
391 LIST_ADDQ(&LIST_ELEM(s->list.n, struct session *, list)->back_refs, &bref->users);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100392 bref->ref = s->list.n;
393 }
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100394 LIST_DEL(&s->list);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200395 pool_free2(pool2_session, s);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200396
397 /* We may want to free the maximum amount of pools if the proxy is stopping */
Willy Tarreau92fb9832007-10-16 17:34:28 +0200398 if (fe && unlikely(fe->state == PR_STSTOPPED)) {
Willy Tarreau48d63db2008-08-03 17:41:33 +0200399 pool_flush2(pool2_buffer);
400 pool_flush2(fe->hdr_idx_pool);
401 pool_flush2(pool2_requri);
402 pool_flush2(pool2_capture);
403 pool_flush2(pool2_session);
404 pool_flush2(fe->req_cap_pool);
405 pool_flush2(fe->rsp_cap_pool);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200406 }
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200407}
408
409
410/* perform minimal intializations, report 0 in case of error, 1 if OK. */
411int init_session()
412{
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100413 LIST_INIT(&sessions);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200414 pool2_session = create_pool("session", sizeof(struct session), MEM_F_SHARED);
415 return pool2_session != NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200416}
417
Willy Tarreau30e71012007-11-26 20:15:35 +0100418void session_process_counters(struct session *s)
419{
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100420 unsigned long long bytes;
421
Willy Tarreau30e71012007-11-26 20:15:35 +0100422 if (s->req) {
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100423 bytes = s->req->total - s->logs.bytes_in;
Willy Tarreau30e71012007-11-26 20:15:35 +0100424 s->logs.bytes_in = s->req->total;
425 if (bytes) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100426 s->fe->fe_counters.bytes_in += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100427
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100428 s->be->be_counters.bytes_in += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100429
Willy Tarreau827aee92011-03-10 16:55:02 +0100430 if (target_srv(&s->target))
431 target_srv(&s->target)->counters.bytes_in += bytes;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200432
433 if (s->listener->counters)
434 s->listener->counters->bytes_in += bytes;
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200435
Willy Tarreau56123282010-08-06 19:06:56 +0200436 if (s->stkctr2_entry) {
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200437 void *ptr;
438
Willy Tarreau56123282010-08-06 19:06:56 +0200439 ptr = stktable_data_ptr(s->stkctr2_table,
440 s->stkctr2_entry,
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200441 STKTABLE_DT_BYTES_IN_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200442 if (ptr)
443 stktable_data_cast(ptr, bytes_in_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200444
Willy Tarreau56123282010-08-06 19:06:56 +0200445 ptr = stktable_data_ptr(s->stkctr2_table,
446 s->stkctr2_entry,
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200447 STKTABLE_DT_BYTES_IN_RATE);
448 if (ptr)
449 update_freq_ctr_period(&stktable_data_cast(ptr, bytes_in_rate),
Willy Tarreau56123282010-08-06 19:06:56 +0200450 s->stkctr2_table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u, bytes);
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200451 }
452
Willy Tarreau56123282010-08-06 19:06:56 +0200453 if (s->stkctr1_entry) {
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200454 void *ptr;
455
Willy Tarreau56123282010-08-06 19:06:56 +0200456 ptr = stktable_data_ptr(s->stkctr1_table,
457 s->stkctr1_entry,
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200458 STKTABLE_DT_BYTES_IN_CNT);
459 if (ptr)
460 stktable_data_cast(ptr, bytes_in_cnt) += bytes;
461
Willy Tarreau56123282010-08-06 19:06:56 +0200462 ptr = stktable_data_ptr(s->stkctr1_table,
463 s->stkctr1_entry,
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200464 STKTABLE_DT_BYTES_IN_RATE);
465 if (ptr)
466 update_freq_ctr_period(&stktable_data_cast(ptr, bytes_in_rate),
Willy Tarreau56123282010-08-06 19:06:56 +0200467 s->stkctr1_table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200468 }
Willy Tarreau30e71012007-11-26 20:15:35 +0100469 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100470 }
471
Willy Tarreau30e71012007-11-26 20:15:35 +0100472 if (s->rep) {
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100473 bytes = s->rep->total - s->logs.bytes_out;
Willy Tarreau30e71012007-11-26 20:15:35 +0100474 s->logs.bytes_out = s->rep->total;
475 if (bytes) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100476 s->fe->fe_counters.bytes_out += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100477
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100478 s->be->be_counters.bytes_out += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100479
Willy Tarreau827aee92011-03-10 16:55:02 +0100480 if (target_srv(&s->target))
481 target_srv(&s->target)->counters.bytes_out += bytes;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200482
483 if (s->listener->counters)
484 s->listener->counters->bytes_out += bytes;
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200485
Willy Tarreau56123282010-08-06 19:06:56 +0200486 if (s->stkctr2_entry) {
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200487 void *ptr;
488
Willy Tarreau56123282010-08-06 19:06:56 +0200489 ptr = stktable_data_ptr(s->stkctr2_table,
490 s->stkctr2_entry,
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200491 STKTABLE_DT_BYTES_OUT_CNT);
492 if (ptr)
493 stktable_data_cast(ptr, bytes_out_cnt) += bytes;
494
Willy Tarreau56123282010-08-06 19:06:56 +0200495 ptr = stktable_data_ptr(s->stkctr2_table,
496 s->stkctr2_entry,
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200497 STKTABLE_DT_BYTES_OUT_RATE);
498 if (ptr)
499 update_freq_ctr_period(&stktable_data_cast(ptr, bytes_out_rate),
Willy Tarreau56123282010-08-06 19:06:56 +0200500 s->stkctr2_table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u, bytes);
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200501 }
502
Willy Tarreau56123282010-08-06 19:06:56 +0200503 if (s->stkctr1_entry) {
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200504 void *ptr;
505
Willy Tarreau56123282010-08-06 19:06:56 +0200506 ptr = stktable_data_ptr(s->stkctr1_table,
507 s->stkctr1_entry,
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200508 STKTABLE_DT_BYTES_OUT_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200509 if (ptr)
510 stktable_data_cast(ptr, bytes_out_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200511
Willy Tarreau56123282010-08-06 19:06:56 +0200512 ptr = stktable_data_ptr(s->stkctr1_table,
513 s->stkctr1_entry,
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200514 STKTABLE_DT_BYTES_OUT_RATE);
515 if (ptr)
516 update_freq_ctr_period(&stktable_data_cast(ptr, bytes_out_rate),
Willy Tarreau56123282010-08-06 19:06:56 +0200517 s->stkctr1_table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200518 }
Willy Tarreau30e71012007-11-26 20:15:35 +0100519 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100520 }
521}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200522
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100523/* This function is called with (si->state == SI_ST_CON) meaning that a
524 * connection was attempted and that the file descriptor is already allocated.
525 * We must check for establishment, error and abort. Possible output states
526 * are SI_ST_EST (established), SI_ST_CER (error), SI_ST_DIS (abort), and
527 * SI_ST_CON (no change). The function returns 0 if it switches to SI_ST_CER,
528 * otherwise 1.
529 */
Simon Hormandec5be42011-06-08 09:19:07 +0900530static int sess_update_st_con_tcp(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100531{
532 struct buffer *req = si->ob;
533 struct buffer *rep = si->ib;
534
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100535 /* If we got an error, or if nothing happened and the connection timed
536 * out, we must give up. The CER state handler will take care of retry
537 * attempts and error reports.
538 */
539 if (unlikely(si->flags & (SI_FL_EXP|SI_FL_ERR))) {
Willy Tarreau127334e2009-03-28 10:47:26 +0100540 si->exp = TICK_ETERNITY;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100541 si->state = SI_ST_CER;
Willy Tarreaudc340a92009-06-28 23:10:19 +0200542 si->flags &= ~SI_FL_CAP_SPLICE;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100543 fd_delete(si->fd);
544
Willy Tarreau0bd05ea2010-07-02 11:18:03 +0200545 if (si->release)
546 si->release(si);
547
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100548 if (si->err_type)
549 return 0;
550
Willy Tarreau827aee92011-03-10 16:55:02 +0100551 si->err_loc = target_srv(&s->target);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100552 if (si->flags & SI_FL_ERR)
553 si->err_type = SI_ET_CONN_ERR;
554 else
555 si->err_type = SI_ET_CONN_TO;
556 return 0;
557 }
558
559 /* OK, maybe we want to abort */
Willy Tarreau418fd472009-09-06 21:37:23 +0200560 if (unlikely((rep->flags & BF_SHUTW) ||
561 ((req->flags & BF_SHUTW_NOW) && /* FIXME: this should not prevent a connection from establishing */
Willy Tarreauba0b63d2009-09-20 08:09:44 +0200562 (((req->flags & (BF_OUT_EMPTY|BF_WRITE_ACTIVITY)) == BF_OUT_EMPTY) ||
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100563 s->be->options & PR_O_ABRT_CLOSE)))) {
564 /* give up */
565 si->shutw(si);
566 si->err_type |= SI_ET_CONN_ABRT;
Willy Tarreau827aee92011-03-10 16:55:02 +0100567 si->err_loc = target_srv(&s->target);
Willy Tarreaudc340a92009-06-28 23:10:19 +0200568 si->flags &= ~SI_FL_CAP_SPLICE;
Willy Tarreau84455332009-03-15 22:34:05 +0100569 if (s->srv_error)
570 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100571 return 1;
572 }
573
574 /* we need to wait a bit more if there was no activity either */
575 if (!(req->flags & BF_WRITE_ACTIVITY))
576 return 1;
577
578 /* OK, this means that a connection succeeded. The caller will be
579 * responsible for handling the transition from CON to EST.
580 */
581 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau127334e2009-03-28 10:47:26 +0100582 si->exp = TICK_ETERNITY;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100583 si->state = SI_ST_EST;
584 si->err_type = SI_ET_NONE;
585 si->err_loc = NULL;
586 return 1;
587}
588
589/* This function is called with (si->state == SI_ST_CER) meaning that a
590 * previous connection attempt has failed and that the file descriptor
591 * has already been released. Possible causes include asynchronous error
592 * notification and time out. Possible output states are SI_ST_CLO when
593 * retries are exhausted, SI_ST_TAR when a delay is wanted before a new
594 * connection attempt, SI_ST_ASS when it's wise to retry on the same server,
595 * and SI_ST_REQ when an immediate redispatch is wanted. The buffers are
596 * marked as in error state. It returns 0.
597 */
Simon Hormandec5be42011-06-08 09:19:07 +0900598static int sess_update_st_cer(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100599{
600 /* we probably have to release last session from the server */
Willy Tarreau827aee92011-03-10 16:55:02 +0100601 if (target_srv(&s->target)) {
602 health_adjust(target_srv(&s->target), HANA_STATUS_L4_ERR);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100603
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100604 if (s->flags & SN_CURR_SESS) {
605 s->flags &= ~SN_CURR_SESS;
Willy Tarreau827aee92011-03-10 16:55:02 +0100606 target_srv(&s->target)->cur_sess--;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100607 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100608 }
609
610 /* ensure that we have enough retries left */
Willy Tarreauee28de02010-06-01 09:51:00 +0200611 si->conn_retries--;
612 if (si->conn_retries < 0) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100613 if (!si->err_type) {
614 si->err_type = SI_ET_CONN_ERR;
Willy Tarreau827aee92011-03-10 16:55:02 +0100615 si->err_loc = target_srv(&s->target);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100616 }
617
Willy Tarreau827aee92011-03-10 16:55:02 +0100618 if (target_srv(&s->target))
619 target_srv(&s->target)->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100620 s->be->be_counters.failed_conns++;
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100621 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +0100622 if (may_dequeue_tasks(target_srv(&s->target), s->be))
623 process_srv_queue(target_srv(&s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100624
625 /* shutw is enough so stop a connecting socket */
626 si->shutw(si);
627 si->ob->flags |= BF_WRITE_ERROR;
628 si->ib->flags |= BF_READ_ERROR;
629
630 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100631 if (s->srv_error)
632 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100633 return 0;
634 }
635
636 /* If the "redispatch" option is set on the backend, we are allowed to
637 * retry on another server for the last retry. In order to achieve this,
638 * we must mark the session unassigned, and eventually clear the DIRECT
639 * bit to ignore any persistence cookie. We won't count a retry nor a
640 * redispatch yet, because this will depend on what server is selected.
641 */
Willy Tarreau827aee92011-03-10 16:55:02 +0100642 if (target_srv(&s->target) && si->conn_retries == 0 &&
Willy Tarreau4de91492010-01-22 19:10:05 +0100643 s->be->options & PR_O_REDISP && !(s->flags & SN_FORCE_PRST)) {
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100644 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +0100645 if (may_dequeue_tasks(target_srv(&s->target), s->be))
646 process_srv_queue(target_srv(&s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100647
648 s->flags &= ~(SN_DIRECT | SN_ASSIGNED | SN_ADDR_SET);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100649 si->state = SI_ST_REQ;
650 } else {
Willy Tarreau827aee92011-03-10 16:55:02 +0100651 if (target_srv(&s->target))
652 target_srv(&s->target)->counters.retries++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100653 s->be->be_counters.retries++;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100654 si->state = SI_ST_ASS;
655 }
656
657 if (si->flags & SI_FL_ERR) {
658 /* The error was an asynchronous connection error, and we will
659 * likely have to retry connecting to the same server, most
660 * likely leading to the same result. To avoid this, we wait
661 * one second before retrying.
662 */
663
664 if (!si->err_type)
665 si->err_type = SI_ET_CONN_ERR;
666
667 si->state = SI_ST_TAR;
668 si->exp = tick_add(now_ms, MS_TO_TICKS(1000));
669 return 0;
670 }
671 return 0;
672}
673
674/*
675 * This function handles the transition between the SI_ST_CON state and the
Willy Tarreau85e7d002010-05-31 11:57:51 +0200676 * SI_ST_EST state. It must only be called after switching from SI_ST_CON (or
677 * SI_ST_INI) to SI_ST_EST, but only when a ->connect function is defined.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100678 */
Simon Hormandec5be42011-06-08 09:19:07 +0900679static void sess_establish(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100680{
681 struct buffer *req = si->ob;
682 struct buffer *rep = si->ib;
683
Willy Tarreau827aee92011-03-10 16:55:02 +0100684 if (target_srv(&s->target))
685 health_adjust(target_srv(&s->target), HANA_STATUS_L4_OK);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100686
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100687 if (s->be->mode == PR_MODE_TCP) { /* let's allow immediate data connection in this case */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100688 /* if the user wants to log as soon as possible, without counting
689 * bytes from the server, then this is the right moment. */
690 if (s->fe->to_log && !(s->logs.logwait & LW_BYTES)) {
691 s->logs.t_close = s->logs.t_connect; /* to get a valid end date */
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100692 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100693 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100694 }
695 else {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100696 s->txn.rsp.msg_state = HTTP_MSG_RPBEFORE;
697 /* reset hdr_idx which was already initialized by the request.
698 * right now, the http parser does it.
699 * hdr_idx_init(&s->txn.hdr_idx);
700 */
701 }
702
Willy Tarreau4e5b8282009-08-16 22:57:50 +0200703 rep->analysers |= s->fe->fe_rsp_ana | s->be->be_rsp_ana;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100704 rep->flags |= BF_READ_ATTACHED; /* producer is now attached */
Willy Tarreaud04e8582010-05-31 12:31:35 +0200705 if (si->connect) {
706 /* real connections have timeouts */
707 req->wto = s->be->timeout.server;
708 rep->rto = s->be->timeout.server;
709 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100710 req->wex = TICK_ETERNITY;
711}
712
713/* Update stream interface status for input states SI_ST_ASS, SI_ST_QUE, SI_ST_TAR.
714 * Other input states are simply ignored.
715 * Possible output states are SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ, SI_ST_CON.
716 * Flags must have previously been updated for timeouts and other conditions.
717 */
Simon Hormandec5be42011-06-08 09:19:07 +0900718static void sess_update_stream_int(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100719{
Willy Tarreau827aee92011-03-10 16:55:02 +0100720 struct server *srv = target_srv(&s->target);
721
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100722 DPRINTF(stderr,"[%u] %s: sess=%p rq=%p, rp=%p, exp(r,w)=%u,%u rqf=%08x rpf=%08x rql=%d rpl=%d cs=%d ss=%d\n",
723 now_ms, __FUNCTION__,
724 s,
725 s->req, s->rep,
726 s->req->rex, s->rep->wex,
727 s->req->flags, s->rep->flags,
728 s->req->l, s->rep->l, s->rep->cons->state, s->req->cons->state);
729
730 if (si->state == SI_ST_ASS) {
731 /* Server assigned to connection request, we have to try to connect now */
732 int conn_err;
733
734 conn_err = connect_server(s);
Willy Tarreau827aee92011-03-10 16:55:02 +0100735 srv = target_srv(&s->target);
736
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100737 if (conn_err == SN_ERR_NONE) {
738 /* state = SI_ST_CON now */
Willy Tarreau827aee92011-03-10 16:55:02 +0100739 if (srv)
740 srv_inc_sess_ctr(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100741 return;
742 }
743
744 /* We have received a synchronous error. We might have to
745 * abort, retry immediately or redispatch.
746 */
747 if (conn_err == SN_ERR_INTERNAL) {
748 if (!si->err_type) {
749 si->err_type = SI_ET_CONN_OTHER;
Willy Tarreau827aee92011-03-10 16:55:02 +0100750 si->err_loc = srv;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100751 }
752
Willy Tarreau827aee92011-03-10 16:55:02 +0100753 if (srv)
754 srv_inc_sess_ctr(srv);
755 if (srv)
756 srv->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100757 s->be->be_counters.failed_conns++;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100758
759 /* release other sessions waiting for this server */
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100760 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +0100761 if (may_dequeue_tasks(srv, s->be))
762 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100763
764 /* Failed and not retryable. */
765 si->shutr(si);
766 si->shutw(si);
767 si->ob->flags |= BF_WRITE_ERROR;
768
769 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
770
771 /* no session was ever accounted for this server */
772 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100773 if (s->srv_error)
774 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100775 return;
776 }
777
778 /* We are facing a retryable error, but we don't want to run a
779 * turn-around now, as the problem is likely a source port
780 * allocation problem, so we want to retry now.
781 */
782 si->state = SI_ST_CER;
783 si->flags &= ~SI_FL_ERR;
784 sess_update_st_cer(s, si);
785 /* now si->state is one of SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ */
786 return;
787 }
788 else if (si->state == SI_ST_QUE) {
789 /* connection request was queued, check for any update */
790 if (!s->pend_pos) {
791 /* The connection is not in the queue anymore. Either
792 * we have a server connection slot available and we
793 * go directly to the assigned state, or we need to
794 * load-balance first and go to the INI state.
795 */
796 si->exp = TICK_ETERNITY;
797 if (unlikely(!(s->flags & SN_ASSIGNED)))
798 si->state = SI_ST_REQ;
799 else {
800 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
801 si->state = SI_ST_ASS;
802 }
803 return;
804 }
805
806 /* Connection request still in queue... */
807 if (si->flags & SI_FL_EXP) {
808 /* ... and timeout expired */
809 si->exp = TICK_ETERNITY;
810 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau827aee92011-03-10 16:55:02 +0100811 if (srv)
812 srv->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100813 s->be->be_counters.failed_conns++;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100814 si->shutr(si);
815 si->shutw(si);
816 si->ob->flags |= BF_WRITE_TIMEOUT;
817 if (!si->err_type)
818 si->err_type = SI_ET_QUEUE_TO;
819 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100820 if (s->srv_error)
821 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100822 return;
823 }
824
825 /* Connection remains in queue, check if we have to abort it */
Willy Tarreau418fd472009-09-06 21:37:23 +0200826 if ((si->ob->flags & (BF_READ_ERROR)) ||
827 ((si->ob->flags & BF_SHUTW_NOW) && /* empty and client aborted */
Willy Tarreauba0b63d2009-09-20 08:09:44 +0200828 (si->ob->flags & BF_OUT_EMPTY || s->be->options & PR_O_ABRT_CLOSE))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100829 /* give up */
830 si->exp = TICK_ETERNITY;
831 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
832 si->shutr(si);
833 si->shutw(si);
834 si->err_type |= SI_ET_QUEUE_ABRT;
835 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100836 if (s->srv_error)
837 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100838 return;
839 }
840
841 /* Nothing changed */
842 return;
843 }
844 else if (si->state == SI_ST_TAR) {
845 /* Connection request might be aborted */
Willy Tarreau418fd472009-09-06 21:37:23 +0200846 if ((si->ob->flags & (BF_READ_ERROR)) ||
847 ((si->ob->flags & BF_SHUTW_NOW) && /* empty and client aborted */
Willy Tarreauba0b63d2009-09-20 08:09:44 +0200848 (si->ob->flags & BF_OUT_EMPTY || s->be->options & PR_O_ABRT_CLOSE))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100849 /* give up */
850 si->exp = TICK_ETERNITY;
851 si->shutr(si);
852 si->shutw(si);
853 si->err_type |= SI_ET_CONN_ABRT;
854 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100855 if (s->srv_error)
856 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100857 return;
858 }
859
860 if (!(si->flags & SI_FL_EXP))
861 return; /* still in turn-around */
862
863 si->exp = TICK_ETERNITY;
864
865 /* we keep trying on the same server as long as the session is
866 * marked "assigned".
867 * FIXME: Should we force a redispatch attempt when the server is down ?
868 */
869 if (s->flags & SN_ASSIGNED)
870 si->state = SI_ST_ASS;
871 else
872 si->state = SI_ST_REQ;
873 return;
874 }
875}
876
Simon Hormandec5be42011-06-08 09:19:07 +0900877/* Set correct session termination flags in case no analyser has done it. It
878 * also counts a failed request if the server state has not reached the request
879 * stage.
880 */
881static void sess_set_term_flags(struct session *s)
882{
883 if (!(s->flags & SN_FINST_MASK)) {
884 if (s->si[1].state < SI_ST_REQ) {
885
886 s->fe->fe_counters.failed_req++;
887 if (s->listener->counters)
888 s->listener->counters->failed_req++;
889
890 s->flags |= SN_FINST_R;
891 }
892 else if (s->si[1].state == SI_ST_QUE)
893 s->flags |= SN_FINST_Q;
894 else if (s->si[1].state < SI_ST_EST)
895 s->flags |= SN_FINST_C;
896 else if (s->si[1].state == SI_ST_EST || s->si[1].prev_state == SI_ST_EST)
897 s->flags |= SN_FINST_D;
898 else
899 s->flags |= SN_FINST_L;
900 }
901}
902
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100903/* This function initiates a server connection request on a stream interface
904 * already in SI_ST_REQ state. Upon success, the state goes to SI_ST_ASS,
905 * indicating that a server has been assigned. It may also return SI_ST_QUE,
906 * or SI_ST_CLO upon error.
907 */
908static void sess_prepare_conn_req(struct session *s, struct stream_interface *si) {
909 DPRINTF(stderr,"[%u] %s: sess=%p rq=%p, rp=%p, exp(r,w)=%u,%u rqf=%08x rpf=%08x rql=%d rpl=%d cs=%d ss=%d\n",
910 now_ms, __FUNCTION__,
911 s,
912 s->req, s->rep,
913 s->req->rex, s->rep->wex,
914 s->req->flags, s->rep->flags,
915 s->req->l, s->rep->l, s->rep->cons->state, s->req->cons->state);
916
917 if (si->state != SI_ST_REQ)
918 return;
919
920 /* Try to assign a server */
921 if (srv_redispatch_connect(s) != 0) {
922 /* We did not get a server. Either we queued the
923 * connection request, or we encountered an error.
924 */
925 if (si->state == SI_ST_QUE)
926 return;
927
928 /* we did not get any server, let's check the cause */
929 si->shutr(si);
930 si->shutw(si);
931 si->ob->flags |= BF_WRITE_ERROR;
932 if (!si->err_type)
933 si->err_type = SI_ET_CONN_OTHER;
934 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100935 if (s->srv_error)
936 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100937 return;
938 }
939
940 /* The server is assigned */
941 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
942 si->state = SI_ST_ASS;
943}
944
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200945/* This stream analyser checks the switching rules and changes the backend
Willy Tarreau4de91492010-01-22 19:10:05 +0100946 * if appropriate. The default_backend rule is also considered, then the
947 * target backend's forced persistence rules are also evaluated last if any.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200948 * It returns 1 if the processing can continue on next analysers, or zero if it
949 * either needs more data or wants to immediately abort the request.
950 */
Simon Hormandec5be42011-06-08 09:19:07 +0900951static int process_switching_rules(struct session *s, struct buffer *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200952{
Cyril Bonté47fdd8e2010-04-25 00:00:51 +0200953 struct persist_rule *prst_rule;
Willy Tarreau4de91492010-01-22 19:10:05 +0100954
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200955 req->analysers &= ~an_bit;
956 req->analyse_exp = TICK_ETERNITY;
957
958 DPRINTF(stderr,"[%u] %s: session=%p b=%p, exp(r,w)=%u,%u bf=%08x bl=%d analysers=%02x\n",
959 now_ms, __FUNCTION__,
960 s,
961 req,
962 req->rex, req->wex,
963 req->flags,
964 req->l,
965 req->analysers);
966
967 /* now check whether we have some switching rules for this request */
968 if (!(s->flags & SN_BE_ASSIGNED)) {
969 struct switching_rule *rule;
970
971 list_for_each_entry(rule, &s->fe->switching_rules, list) {
972 int ret;
973
974 ret = acl_exec_cond(rule->cond, s->fe, s, &s->txn, ACL_DIR_REQ);
975 ret = acl_pass(ret);
976 if (rule->cond->pol == ACL_COND_UNLESS)
977 ret = !ret;
978
979 if (ret) {
Willy Tarreaubedb9ba2009-07-12 08:27:39 +0200980 if (!session_set_backend(s, rule->be.backend))
981 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200982 break;
983 }
984 }
985
986 /* To ensure correct connection accounting on the backend, we
987 * have to assign one if it was not set (eg: a listen). This
988 * measure also takes care of correctly setting the default
989 * backend if any.
990 */
991 if (!(s->flags & SN_BE_ASSIGNED))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +0200992 if (!session_set_backend(s, s->fe->defbe.be ? s->fe->defbe.be : s->be))
993 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200994 }
995
Willy Tarreaufb356202010-08-03 14:02:05 +0200996 /* we don't want to run the TCP or HTTP filters again if the backend has not changed */
997 if (s->fe == s->be) {
998 s->req->analysers &= ~AN_REQ_INSPECT_BE;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200999 s->req->analysers &= ~AN_REQ_HTTP_PROCESS_BE;
Willy Tarreaufb356202010-08-03 14:02:05 +02001000 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001001
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001002 /* as soon as we know the backend, we must check if we have a matching forced or ignored
Willy Tarreau4de91492010-01-22 19:10:05 +01001003 * persistence rule, and report that in the session.
1004 */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001005 list_for_each_entry(prst_rule, &s->be->persist_rules, list) {
Willy Tarreau4de91492010-01-22 19:10:05 +01001006 int ret = 1;
1007
1008 if (prst_rule->cond) {
1009 ret = acl_exec_cond(prst_rule->cond, s->be, s, &s->txn, ACL_DIR_REQ);
1010 ret = acl_pass(ret);
1011 if (prst_rule->cond->pol == ACL_COND_UNLESS)
1012 ret = !ret;
1013 }
1014
1015 if (ret) {
1016 /* no rule, or the rule matches */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001017 if (prst_rule->type == PERSIST_TYPE_FORCE) {
1018 s->flags |= SN_FORCE_PRST;
1019 } else {
1020 s->flags |= SN_IGNORE_PRST;
1021 }
Willy Tarreau4de91492010-01-22 19:10:05 +01001022 break;
1023 }
1024 }
1025
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001026 return 1;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001027
1028 sw_failed:
1029 /* immediately abort this request in case of allocation failure */
1030 buffer_abort(s->req);
1031 buffer_abort(s->rep);
1032
1033 if (!(s->flags & SN_ERR_MASK))
1034 s->flags |= SN_ERR_RESOURCE;
1035 if (!(s->flags & SN_FINST_MASK))
1036 s->flags |= SN_FINST_R;
1037
1038 s->txn.status = 500;
1039 s->req->analysers = 0;
1040 s->req->analyse_exp = TICK_ETERNITY;
1041 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001042}
1043
Emeric Brun1d33b292010-01-04 15:47:17 +01001044/* This stream analyser works on a request. It applies all sticking rules on
1045 * it then returns 1. The data must already be present in the buffer otherwise
1046 * they won't match. It always returns 1.
1047 */
Simon Hormandec5be42011-06-08 09:19:07 +09001048static int process_sticking_rules(struct session *s, struct buffer *req, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001049{
1050 struct proxy *px = s->be;
1051 struct sticking_rule *rule;
1052
1053 DPRINTF(stderr,"[%u] %s: session=%p b=%p, exp(r,w)=%u,%u bf=%08x bl=%d analysers=%02x\n",
1054 now_ms, __FUNCTION__,
1055 s,
1056 req,
1057 req->rex, req->wex,
1058 req->flags,
1059 req->l,
1060 req->analysers);
1061
1062 list_for_each_entry(rule, &px->sticking_rules, list) {
1063 int ret = 1 ;
1064 int i;
1065
1066 for (i = 0; i < s->store_count; i++) {
1067 if (rule->table.t == s->store[i].table)
1068 break;
1069 }
1070
1071 if (i != s->store_count)
1072 continue;
1073
1074 if (rule->cond) {
1075 ret = acl_exec_cond(rule->cond, px, s, &s->txn, ACL_DIR_REQ);
1076 ret = acl_pass(ret);
1077 if (rule->cond->pol == ACL_COND_UNLESS)
1078 ret = !ret;
1079 }
1080
1081 if (ret) {
1082 struct stktable_key *key;
1083
Emeric Brun485479d2010-09-23 18:02:19 +02001084 key = stktable_fetch_key(rule->table.t, px, s, &s->txn, PATTERN_FETCH_REQ, rule->expr);
Emeric Brun1d33b292010-01-04 15:47:17 +01001085 if (!key)
1086 continue;
1087
1088 if (rule->flags & STK_IS_MATCH) {
1089 struct stksess *ts;
1090
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001091 if ((ts = stktable_lookup_key(rule->table.t, key)) != NULL) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001092 if (!(s->flags & SN_ASSIGNED)) {
1093 struct eb32_node *node;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001094 void *ptr;
Emeric Brun1d33b292010-01-04 15:47:17 +01001095
1096 /* srv found in table */
Willy Tarreau13c29de2010-06-06 16:40:39 +02001097 ptr = stktable_data_ptr(rule->table.t, ts, STKTABLE_DT_SERVER_ID);
1098 node = eb32_lookup(&px->conf.used_server_id, stktable_data_cast(ptr, server_id));
Emeric Brun1d33b292010-01-04 15:47:17 +01001099 if (node) {
1100 struct server *srv;
1101
1102 srv = container_of(node, struct server, conf.id);
Willy Tarreau4de91492010-01-22 19:10:05 +01001103 if ((srv->state & SRV_RUNNING) ||
1104 (px->options & PR_O_PERSIST) ||
1105 (s->flags & SN_FORCE_PRST)) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001106 s->flags |= SN_DIRECT | SN_ASSIGNED;
Willy Tarreau9e000c62011-03-10 14:03:36 +01001107 set_target_server(&s->target, srv);
Emeric Brun1d33b292010-01-04 15:47:17 +01001108 }
1109 }
1110 }
Emeric Brun85e77c72010-09-23 18:16:52 +02001111 stktable_touch(rule->table.t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001112 }
1113 }
1114 if (rule->flags & STK_IS_STORE) {
1115 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
1116 struct stksess *ts;
1117
1118 ts = stksess_new(rule->table.t, key);
1119 if (ts) {
1120 s->store[s->store_count].table = rule->table.t;
1121 s->store[s->store_count++].ts = ts;
1122 }
1123 }
1124 }
1125 }
1126 }
1127
1128 req->analysers &= ~an_bit;
1129 req->analyse_exp = TICK_ETERNITY;
1130 return 1;
1131}
1132
1133/* This stream analyser works on a response. It applies all store rules on it
1134 * then returns 1. The data must already be present in the buffer otherwise
1135 * they won't match. It always returns 1.
1136 */
Simon Hormandec5be42011-06-08 09:19:07 +09001137static int process_store_rules(struct session *s, struct buffer *rep, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001138{
1139 struct proxy *px = s->be;
1140 struct sticking_rule *rule;
1141 int i;
1142
1143 DPRINTF(stderr,"[%u] %s: session=%p b=%p, exp(r,w)=%u,%u bf=%08x bl=%d analysers=%02x\n",
1144 now_ms, __FUNCTION__,
1145 s,
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001146 rep,
1147 rep->rex, rep->wex,
1148 rep->flags,
1149 rep->l,
1150 rep->analysers);
Emeric Brun1d33b292010-01-04 15:47:17 +01001151
1152 list_for_each_entry(rule, &px->storersp_rules, list) {
1153 int ret = 1 ;
1154 int storereqidx = -1;
1155
1156 for (i = 0; i < s->store_count; i++) {
1157 if (rule->table.t == s->store[i].table) {
1158 if (!(s->store[i].flags))
1159 storereqidx = i;
1160 break;
1161 }
1162 }
1163
1164 if ((i != s->store_count) && (storereqidx == -1))
1165 continue;
1166
1167 if (rule->cond) {
1168 ret = acl_exec_cond(rule->cond, px, s, &s->txn, ACL_DIR_RTR);
1169 ret = acl_pass(ret);
1170 if (rule->cond->pol == ACL_COND_UNLESS)
1171 ret = !ret;
1172 }
1173
1174 if (ret) {
1175 struct stktable_key *key;
1176
Emeric Brun485479d2010-09-23 18:02:19 +02001177 key = stktable_fetch_key(rule->table.t, px, s, &s->txn, PATTERN_FETCH_RTR, rule->expr);
Emeric Brun1d33b292010-01-04 15:47:17 +01001178 if (!key)
1179 continue;
1180
1181 if (storereqidx != -1) {
Willy Tarreau393379c2010-06-06 12:11:37 +02001182 stksess_setkey(s->store[storereqidx].table, s->store[storereqidx].ts, key);
Emeric Brun1d33b292010-01-04 15:47:17 +01001183 s->store[storereqidx].flags = 1;
1184 }
1185 else if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
1186 struct stksess *ts;
1187
1188 ts = stksess_new(rule->table.t, key);
1189 if (ts) {
1190 s->store[s->store_count].table = rule->table.t;
1191 s->store[s->store_count].flags = 1;
1192 s->store[s->store_count++].ts = ts;
1193 }
1194 }
1195 }
1196 }
1197
1198 /* process store request and store response */
1199 for (i = 0; i < s->store_count; i++) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001200 struct stksess *ts;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001201 void *ptr;
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001202
Simon Hormanfa461682011-06-25 09:39:49 +09001203 if (target_srv(&s->target) && target_srv(&s->target)->state & SRV_NON_STICK) {
1204 stksess_free(s->store[i].table, s->store[i].ts);
1205 s->store[i].ts = NULL;
1206 continue;
1207 }
1208
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001209 ts = stktable_lookup(s->store[i].table, s->store[i].ts);
1210 if (ts) {
1211 /* the entry already existed, we can free ours */
Emeric Brun85e77c72010-09-23 18:16:52 +02001212 stktable_touch(s->store[i].table, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001213 stksess_free(s->store[i].table, s->store[i].ts);
Emeric Brun1d33b292010-01-04 15:47:17 +01001214 }
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001215 else
Emeric Brun85e77c72010-09-23 18:16:52 +02001216 ts = stktable_store(s->store[i].table, s->store[i].ts, 1);
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001217
1218 s->store[i].ts = NULL;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001219 ptr = stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_ID);
Willy Tarreau827aee92011-03-10 16:55:02 +01001220 stktable_data_cast(ptr, server_id) = target_srv(&s->target)->puid;
Emeric Brun1d33b292010-01-04 15:47:17 +01001221 }
Willy Tarreau2a164ee2010-06-18 09:57:45 +02001222 s->store_count = 0; /* everything is stored */
Emeric Brun1d33b292010-01-04 15:47:17 +01001223
1224 rep->analysers &= ~an_bit;
1225 rep->analyse_exp = TICK_ETERNITY;
1226 return 1;
1227}
1228
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001229/* This macro is very specific to the function below. See the comments in
1230 * process_session() below to understand the logic and the tests.
1231 */
1232#define UPDATE_ANALYSERS(real, list, back, flag) { \
1233 list = (((list) & ~(flag)) | ~(back)) & (real); \
1234 back = real; \
1235 if (!(list)) \
1236 break; \
1237 if (((list) ^ ((list) & ((list) - 1))) < (flag)) \
1238 continue; \
1239}
1240
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001241/* Processes the client, server, request and response jobs of a session task,
1242 * then puts it back to the wait queue in a clean state, or cleans up its
1243 * resources if it must be deleted. Returns in <next> the date the task wants
1244 * to be woken up, or TICK_ETERNITY. In order not to call all functions for
1245 * nothing too many times, the request and response buffers flags are monitored
1246 * and each function is called only if at least another function has changed at
1247 * least one flag it is interested in.
1248 */
Willy Tarreau26c25062009-03-08 09:38:41 +01001249struct task *process_session(struct task *t)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001250{
Willy Tarreau827aee92011-03-10 16:55:02 +01001251 struct server *srv;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001252 struct session *s = t->context;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001253 unsigned int rqf_last, rpf_last;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001254 unsigned int rq_prod_last, rq_cons_last;
1255 unsigned int rp_cons_last, rp_prod_last;
Willy Tarreau576507f2010-01-07 00:09:04 +01001256 unsigned int req_ana_back;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001257
1258 //DPRINTF(stderr, "%s:%d: cs=%d ss=%d(%d) rqf=0x%08x rpf=0x%08x\n", __FUNCTION__, __LINE__,
1259 // s->si[0].state, s->si[1].state, s->si[1].err_type, s->req->flags, s->rep->flags);
1260
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001261 /* this data may be no longer valid, clear it */
1262 memset(&s->txn.auth, 0, sizeof(s->txn.auth));
1263
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001264 /* This flag must explicitly be set every time */
1265 s->req->flags &= ~BF_READ_NOEXP;
1266
1267 /* Keep a copy of req/rep flags so that we can detect shutdowns */
Willy Tarreau2f976e12010-11-11 14:28:47 +01001268 rqf_last = s->req->flags & ~BF_MASK_ANALYSER;
1269 rpf_last = s->rep->flags & ~BF_MASK_ANALYSER;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001270
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001271 /* we don't want the stream interface functions to recursively wake us up */
1272 if (s->req->prod->owner == t)
1273 s->req->prod->flags |= SI_FL_DONT_WAKE;
1274 if (s->req->cons->owner == t)
1275 s->req->cons->flags |= SI_FL_DONT_WAKE;
1276
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001277 /* 1a: Check for low level timeouts if needed. We just set a flag on
1278 * stream interfaces when their timeouts have expired.
1279 */
1280 if (unlikely(t->state & TASK_WOKEN_TIMER)) {
1281 stream_int_check_timeouts(&s->si[0]);
1282 stream_int_check_timeouts(&s->si[1]);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001283
1284 /* check buffer timeouts, and close the corresponding stream interfaces
1285 * for future reads or writes. Note: this will also concern upper layers
1286 * but we do not touch any other flag. We must be careful and correctly
1287 * detect state changes when calling them.
1288 */
1289
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001290 buffer_check_timeouts(s->req);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001291
Willy Tarreau14641402009-12-29 14:49:56 +01001292 if (unlikely((s->req->flags & (BF_SHUTW|BF_WRITE_TIMEOUT)) == BF_WRITE_TIMEOUT)) {
1293 s->req->cons->flags |= SI_FL_NOLINGER;
1294 s->req->cons->shutw(s->req->cons);
1295 }
1296
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001297 if (unlikely((s->req->flags & (BF_SHUTR|BF_READ_TIMEOUT)) == BF_READ_TIMEOUT))
1298 s->req->prod->shutr(s->req->prod);
1299
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001300 buffer_check_timeouts(s->rep);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001301
Willy Tarreau14641402009-12-29 14:49:56 +01001302 if (unlikely((s->rep->flags & (BF_SHUTW|BF_WRITE_TIMEOUT)) == BF_WRITE_TIMEOUT)) {
1303 s->rep->cons->flags |= SI_FL_NOLINGER;
1304 s->rep->cons->shutw(s->rep->cons);
1305 }
1306
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001307 if (unlikely((s->rep->flags & (BF_SHUTR|BF_READ_TIMEOUT)) == BF_READ_TIMEOUT))
1308 s->rep->prod->shutr(s->rep->prod);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001309 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001310
1311 /* 1b: check for low-level errors reported at the stream interface.
1312 * First we check if it's a retryable error (in which case we don't
1313 * want to tell the buffer). Otherwise we report the error one level
1314 * upper by setting flags into the buffers. Note that the side towards
1315 * the client cannot have connect (hence retryable) errors. Also, the
1316 * connection setup code must be able to deal with any type of abort.
1317 */
Willy Tarreau827aee92011-03-10 16:55:02 +01001318 srv = target_srv(&s->target);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001319 if (unlikely(s->si[0].flags & SI_FL_ERR)) {
1320 if (s->si[0].state == SI_ST_EST || s->si[0].state == SI_ST_DIS) {
1321 s->si[0].shutr(&s->si[0]);
1322 s->si[0].shutw(&s->si[0]);
1323 stream_int_report_error(&s->si[0]);
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001324 if (!(s->req->analysers) && !(s->rep->analysers)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001325 s->be->be_counters.cli_aborts++;
1326 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001327 if (srv)
1328 srv->counters.cli_aborts++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001329 if (!(s->flags & SN_ERR_MASK))
1330 s->flags |= SN_ERR_CLICL;
1331 if (!(s->flags & SN_FINST_MASK))
1332 s->flags |= SN_FINST_D;
1333 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001334 }
1335 }
1336
1337 if (unlikely(s->si[1].flags & SI_FL_ERR)) {
1338 if (s->si[1].state == SI_ST_EST || s->si[1].state == SI_ST_DIS) {
1339 s->si[1].shutr(&s->si[1]);
1340 s->si[1].shutw(&s->si[1]);
1341 stream_int_report_error(&s->si[1]);
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001342 s->be->be_counters.failed_resp++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001343 if (srv)
1344 srv->counters.failed_resp++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001345 if (!(s->req->analysers) && !(s->rep->analysers)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001346 s->be->be_counters.srv_aborts++;
1347 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001348 if (srv)
1349 srv->counters.srv_aborts++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001350 if (!(s->flags & SN_ERR_MASK))
1351 s->flags |= SN_ERR_SRVCL;
1352 if (!(s->flags & SN_FINST_MASK))
1353 s->flags |= SN_FINST_D;
1354 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001355 }
1356 /* note: maybe we should process connection errors here ? */
1357 }
1358
1359 if (s->si[1].state == SI_ST_CON) {
1360 /* we were trying to establish a connection on the server side,
1361 * maybe it succeeded, maybe it failed, maybe we timed out, ...
1362 */
1363 if (unlikely(!sess_update_st_con_tcp(s, &s->si[1])))
1364 sess_update_st_cer(s, &s->si[1]);
1365 else if (s->si[1].state == SI_ST_EST)
1366 sess_establish(s, &s->si[1]);
1367
1368 /* state is now one of SI_ST_CON (still in progress), SI_ST_EST
1369 * (established), SI_ST_DIS (abort), SI_ST_CLO (last error),
1370 * SI_ST_ASS/SI_ST_TAR/SI_ST_REQ for retryable errors.
1371 */
1372 }
1373
Willy Tarreau815a9b22010-07-27 17:15:12 +02001374 rq_prod_last = s->si[0].state;
1375 rq_cons_last = s->si[1].state;
1376 rp_cons_last = s->si[0].state;
1377 rp_prod_last = s->si[1].state;
1378
1379 resync_stream_interface:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001380 /* Check for connection closure */
1381
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001382 DPRINTF(stderr,
1383 "[%u] %s:%d: task=%p s=%p, sfl=0x%08x, rq=%p, rp=%p, exp(r,w)=%u,%u rqf=%08x rpf=%08x rql=%d rpl=%d cs=%d ss=%d, cet=0x%x set=0x%x retr=%d\n",
1384 now_ms, __FUNCTION__, __LINE__,
1385 t,
1386 s, s->flags,
1387 s->req, s->rep,
1388 s->req->rex, s->rep->wex,
1389 s->req->flags, s->rep->flags,
1390 s->req->l, s->rep->l, s->rep->cons->state, s->req->cons->state,
1391 s->rep->cons->err_type, s->req->cons->err_type,
Willy Tarreauee28de02010-06-01 09:51:00 +02001392 s->req->cons->conn_retries);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001393
1394 /* nothing special to be done on client side */
1395 if (unlikely(s->req->prod->state == SI_ST_DIS))
1396 s->req->prod->state = SI_ST_CLO;
1397
1398 /* When a server-side connection is released, we have to count it and
1399 * check for pending connections on this server.
1400 */
1401 if (unlikely(s->req->cons->state == SI_ST_DIS)) {
1402 s->req->cons->state = SI_ST_CLO;
Willy Tarreau827aee92011-03-10 16:55:02 +01001403 srv = target_srv(&s->target);
1404 if (srv) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001405 if (s->flags & SN_CURR_SESS) {
1406 s->flags &= ~SN_CURR_SESS;
Willy Tarreau827aee92011-03-10 16:55:02 +01001407 srv->cur_sess--;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001408 }
1409 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001410 if (may_dequeue_tasks(srv, s->be))
1411 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001412 }
1413 }
1414
1415 /*
1416 * Note: of the transient states (REQ, CER, DIS), only REQ may remain
1417 * at this point.
1418 */
1419
Willy Tarreau0be0ef92009-03-08 19:20:25 +01001420 resync_request:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001421 /* Analyse request */
Willy Tarreau2f976e12010-11-11 14:28:47 +01001422 if (((s->req->flags & ~rqf_last) & BF_MASK_ANALYSER) ||
Willy Tarreau815a9b22010-07-27 17:15:12 +02001423 ((s->req->flags ^ rqf_last) & BF_MASK_STATIC) ||
1424 s->si[0].state != rq_prod_last ||
1425 s->si[1].state != rq_cons_last) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001426 unsigned int flags = s->req->flags;
1427
1428 if (s->req->prod->state >= SI_ST_EST) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001429 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001430 unsigned int ana_list;
1431 unsigned int ana_back;
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001432
Willy Tarreau90deb182010-01-07 00:20:41 +01001433 /* it's up to the analysers to stop new connections,
1434 * disable reading or closing. Note: if an analyser
1435 * disables any of these bits, it is responsible for
1436 * enabling them again when it disables itself, so
1437 * that other analysers are called in similar conditions.
1438 */
1439 buffer_auto_read(s->req);
Willy Tarreau520d95e2009-09-19 21:04:57 +02001440 buffer_auto_connect(s->req);
1441 buffer_auto_close(s->req);
Willy Tarreauedcf6682008-11-30 23:15:34 +01001442
1443 /* We will call all analysers for which a bit is set in
1444 * s->req->analysers, following the bit order from LSB
1445 * to MSB. The analysers must remove themselves from
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001446 * the list when not needed. Any analyser may return 0
1447 * to break out of the loop, either because of missing
1448 * data to take a decision, or because it decides to
1449 * kill the session. We loop at least once through each
1450 * analyser, and we may loop again if other analysers
1451 * are added in the middle.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001452 *
1453 * We build a list of analysers to run. We evaluate all
1454 * of these analysers in the order of the lower bit to
1455 * the higher bit. This ordering is very important.
1456 * An analyser will often add/remove other analysers,
1457 * including itself. Any changes to itself have no effect
1458 * on the loop. If it removes any other analysers, we
1459 * want those analysers not to be called anymore during
1460 * this loop. If it adds an analyser that is located
1461 * after itself, we want it to be scheduled for being
1462 * processed during the loop. If it adds an analyser
1463 * which is located before it, we want it to switch to
1464 * it immediately, even if it has already been called
1465 * once but removed since.
1466 *
1467 * In order to achieve this, we compare the analyser
1468 * list after the call with a copy of it before the
1469 * call. The work list is fed with analyser bits that
1470 * appeared during the call. Then we compare previous
1471 * work list with the new one, and check the bits that
1472 * appeared. If the lowest of these bits is lower than
1473 * the current bit, it means we have enabled a previous
1474 * analyser and must immediately loop again.
Willy Tarreauedcf6682008-11-30 23:15:34 +01001475 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001476
1477 ana_list = ana_back = s->req->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001478 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001479 /* Warning! ensure that analysers are always placed in ascending order! */
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001480
Willy Tarreau3041b9f2010-10-15 23:25:20 +02001481 if (ana_list & AN_REQ_DECODE_PROXY) {
1482 if (!frontend_decode_proxy_request(s, s->req, AN_REQ_DECODE_PROXY))
1483 break;
1484 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_DECODE_PROXY);
1485 }
1486
Willy Tarreaufb356202010-08-03 14:02:05 +02001487 if (ana_list & AN_REQ_INSPECT_FE) {
1488 if (!tcp_inspect_request(s, s->req, AN_REQ_INSPECT_FE))
Willy Tarreauedcf6682008-11-30 23:15:34 +01001489 break;
Willy Tarreaufb356202010-08-03 14:02:05 +02001490 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_INSPECT_FE);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001491 }
Willy Tarreauedcf6682008-11-30 23:15:34 +01001492
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001493 if (ana_list & AN_REQ_WAIT_HTTP) {
Willy Tarreau3a816292009-07-07 10:55:49 +02001494 if (!http_wait_for_request(s, s->req, AN_REQ_WAIT_HTTP))
Willy Tarreaud787e662009-07-07 10:14:51 +02001495 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001496 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_WAIT_HTTP);
Willy Tarreaud787e662009-07-07 10:14:51 +02001497 }
1498
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001499 if (ana_list & AN_REQ_HTTP_PROCESS_FE) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001500 if (!http_process_req_common(s, s->req, AN_REQ_HTTP_PROCESS_FE, s->fe))
1501 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001502 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_PROCESS_FE);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001503 }
1504
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001505 if (ana_list & AN_REQ_SWITCHING_RULES) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001506 if (!process_switching_rules(s, s->req, AN_REQ_SWITCHING_RULES))
1507 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001508 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_SWITCHING_RULES);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001509 }
1510
Willy Tarreaufb356202010-08-03 14:02:05 +02001511 if (ana_list & AN_REQ_INSPECT_BE) {
1512 if (!tcp_inspect_request(s, s->req, AN_REQ_INSPECT_BE))
1513 break;
1514 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_INSPECT_BE);
1515 }
1516
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001517 if (ana_list & AN_REQ_HTTP_PROCESS_BE) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001518 if (!http_process_req_common(s, s->req, AN_REQ_HTTP_PROCESS_BE, s->be))
1519 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001520 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_PROCESS_BE);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001521 }
1522
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001523 if (ana_list & AN_REQ_HTTP_TARPIT) {
Willy Tarreau3a816292009-07-07 10:55:49 +02001524 if (!http_process_tarpit(s, s->req, AN_REQ_HTTP_TARPIT))
Willy Tarreau60b85b02008-11-30 23:28:40 +01001525 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001526 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_TARPIT);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001527 }
Willy Tarreau60b85b02008-11-30 23:28:40 +01001528
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001529 if (ana_list & AN_REQ_HTTP_INNER) {
Willy Tarreauc465fd72009-08-31 00:17:18 +02001530 if (!http_process_request(s, s->req, AN_REQ_HTTP_INNER))
1531 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001532 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_INNER);
Willy Tarreauc465fd72009-08-31 00:17:18 +02001533 }
1534
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001535 if (ana_list & AN_REQ_HTTP_BODY) {
Willy Tarreau3a816292009-07-07 10:55:49 +02001536 if (!http_process_request_body(s, s->req, AN_REQ_HTTP_BODY))
Willy Tarreaud34af782008-11-30 23:36:37 +01001537 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001538 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_BODY);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001539 }
Emeric Brun647caf12009-06-30 17:57:00 +02001540
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001541 if (ana_list & AN_REQ_PRST_RDP_COOKIE) {
Emeric Brun647caf12009-06-30 17:57:00 +02001542 if (!tcp_persist_rdp_cookie(s, s->req, AN_REQ_PRST_RDP_COOKIE))
1543 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001544 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_PRST_RDP_COOKIE);
Emeric Brun647caf12009-06-30 17:57:00 +02001545 }
Willy Tarreaud98cf932009-12-27 22:54:55 +01001546
Emeric Brun1d33b292010-01-04 15:47:17 +01001547 if (ana_list & AN_REQ_STICKING_RULES) {
1548 if (!process_sticking_rules(s, s->req, AN_REQ_STICKING_RULES))
1549 break;
1550 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_STICKING_RULES);
1551 }
1552
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001553 if (ana_list & AN_REQ_HTTP_XFER_BODY) {
Willy Tarreaud98cf932009-12-27 22:54:55 +01001554 if (!http_request_forward_body(s, s->req, AN_REQ_HTTP_XFER_BODY))
1555 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001556 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_XFER_BODY);
Willy Tarreaud98cf932009-12-27 22:54:55 +01001557 }
Willy Tarreaue34070e2010-01-08 00:32:27 +01001558 break;
1559 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001560 }
Willy Tarreau84455332009-03-15 22:34:05 +01001561
Willy Tarreau815a9b22010-07-27 17:15:12 +02001562 rq_prod_last = s->si[0].state;
1563 rq_cons_last = s->si[1].state;
Willy Tarreau0499e352010-12-17 07:13:42 +01001564 s->req->flags &= ~BF_WAKE_ONCE;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001565 rqf_last = s->req->flags;
1566
1567 if ((s->req->flags ^ flags) & BF_MASK_STATIC)
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001568 goto resync_request;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001569 }
1570
Willy Tarreau576507f2010-01-07 00:09:04 +01001571 /* we'll monitor the request analysers while parsing the response,
1572 * because some response analysers may indirectly enable new request
1573 * analysers (eg: HTTP keep-alive).
1574 */
1575 req_ana_back = s->req->analysers;
1576
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001577 resync_response:
1578 /* Analyse response */
1579
1580 if (unlikely(s->rep->flags & BF_HIJACK)) {
1581 /* In inject mode, we wake up everytime something has
1582 * happened on the write side of the buffer.
1583 */
1584 unsigned int flags = s->rep->flags;
1585
1586 if ((s->rep->flags & (BF_WRITE_PARTIAL|BF_WRITE_ERROR|BF_SHUTW)) &&
1587 !(s->rep->flags & BF_FULL)) {
1588 s->rep->hijacker(s, s->rep);
1589 }
1590
1591 if ((s->rep->flags ^ flags) & BF_MASK_STATIC) {
1592 rpf_last = s->rep->flags;
1593 goto resync_response;
1594 }
1595 }
Willy Tarreau2f976e12010-11-11 14:28:47 +01001596 else if (((s->rep->flags & ~rpf_last) & BF_MASK_ANALYSER) ||
Willy Tarreau815a9b22010-07-27 17:15:12 +02001597 (s->rep->flags ^ rpf_last) & BF_MASK_STATIC ||
1598 s->si[0].state != rp_cons_last ||
1599 s->si[1].state != rp_prod_last) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001600 unsigned int flags = s->rep->flags;
1601
Willy Tarreau0499e352010-12-17 07:13:42 +01001602 if ((s->rep->flags & BF_MASK_ANALYSER) &&
1603 (s->rep->analysers & AN_REQ_WAIT_HTTP)) {
1604 /* Due to HTTP pipelining, the HTTP request analyser might be waiting
1605 * for some free space in the response buffer, so we might need to call
1606 * it when something changes in the response buffer, but still we pass
1607 * it the request buffer. Note that the SI state might very well still
1608 * be zero due to us returning a flow of redirects!
1609 */
1610 s->rep->analysers &= ~AN_REQ_WAIT_HTTP;
1611 s->req->flags |= BF_WAKE_ONCE;
1612 }
1613
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001614 if (s->rep->prod->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 Tarreaub37c27e2009-10-18 22:53:08 +02001618
Willy Tarreau90deb182010-01-07 00:20:41 +01001619 /* it's up to the analysers to stop disable reading or
1620 * closing. Note: if an analyser disables any of these
1621 * bits, it is responsible for enabling them again when
1622 * it disables itself, so that other analysers are called
1623 * in similar conditions.
1624 */
1625 buffer_auto_read(s->rep);
Willy Tarreau520d95e2009-09-19 21:04:57 +02001626 buffer_auto_close(s->rep);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001627
1628 /* We will call all analysers for which a bit is set in
1629 * s->rep->analysers, following the bit order from LSB
1630 * to MSB. The analysers must remove themselves from
1631 * the list when not needed. Any analyser may return 0
1632 * to break out of the loop, either because of missing
1633 * data to take a decision, or because it decides to
1634 * kill the session. We loop at least once through each
1635 * analyser, and we may loop again if other analysers
1636 * are added in the middle.
1637 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001638
1639 ana_list = ana_back = s->rep->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001640 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001641 /* Warning! ensure that analysers are always placed in ascending order! */
1642
Emeric Brun97679e72010-09-23 17:56:44 +02001643 if (ana_list & AN_RES_INSPECT) {
1644 if (!tcp_inspect_response(s, s->rep, AN_RES_INSPECT))
1645 break;
1646 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_INSPECT);
1647 }
1648
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001649 if (ana_list & AN_RES_WAIT_HTTP) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001650 if (!http_wait_for_response(s, s->rep, AN_RES_WAIT_HTTP))
1651 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001652 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_WAIT_HTTP);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001653 }
1654
Emeric Brun1d33b292010-01-04 15:47:17 +01001655 if (ana_list & AN_RES_STORE_RULES) {
1656 if (!process_store_rules(s, s->rep, AN_RES_STORE_RULES))
1657 break;
1658 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_STORE_RULES);
1659 }
1660
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001661 if (ana_list & AN_RES_HTTP_PROCESS_BE) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001662 if (!http_process_res_common(s, s->rep, AN_RES_HTTP_PROCESS_BE, s->be))
1663 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001664 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_HTTP_PROCESS_BE);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001665 }
Willy Tarreaud98cf932009-12-27 22:54:55 +01001666
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001667 if (ana_list & AN_RES_HTTP_XFER_BODY) {
Willy Tarreaud98cf932009-12-27 22:54:55 +01001668 if (!http_response_forward_body(s, s->rep, AN_RES_HTTP_XFER_BODY))
1669 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001670 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_HTTP_XFER_BODY);
Willy Tarreaud98cf932009-12-27 22:54:55 +01001671 }
Willy Tarreaue34070e2010-01-08 00:32:27 +01001672 break;
1673 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001674 }
1675
Willy Tarreau815a9b22010-07-27 17:15:12 +02001676 rp_cons_last = s->si[0].state;
1677 rp_prod_last = s->si[1].state;
1678 rpf_last = s->rep->flags;
1679
1680 if ((s->rep->flags ^ flags) & BF_MASK_STATIC)
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001681 goto resync_response;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001682 }
1683
Willy Tarreau576507f2010-01-07 00:09:04 +01001684 /* maybe someone has added some request analysers, so we must check and loop */
1685 if (s->req->analysers & ~req_ana_back)
1686 goto resync_request;
1687
Willy Tarreau0499e352010-12-17 07:13:42 +01001688 if ((s->req->flags & ~rqf_last) & BF_MASK_ANALYSER)
1689 goto resync_request;
1690
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001691 /* FIXME: here we should call protocol handlers which rely on
1692 * both buffers.
1693 */
1694
1695
1696 /*
Willy Tarreauae526782010-03-04 20:34:23 +01001697 * Now we propagate unhandled errors to the session. Normally
1698 * we're just in a data phase here since it means we have not
1699 * seen any analyser who could set an error status.
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001700 */
Willy Tarreau827aee92011-03-10 16:55:02 +01001701 srv = target_srv(&s->target);
Willy Tarreau2f976e12010-11-11 14:28:47 +01001702 if (unlikely(!(s->flags & SN_ERR_MASK))) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001703 if (s->req->flags & (BF_READ_ERROR|BF_READ_TIMEOUT|BF_WRITE_ERROR|BF_WRITE_TIMEOUT)) {
1704 /* Report it if the client got an error or a read timeout expired */
Willy Tarreau84455332009-03-15 22:34:05 +01001705 s->req->analysers = 0;
Willy Tarreauae526782010-03-04 20:34:23 +01001706 if (s->req->flags & BF_READ_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001707 s->be->be_counters.cli_aborts++;
1708 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001709 if (srv)
1710 srv->counters.cli_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01001711 s->flags |= SN_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01001712 }
1713 else if (s->req->flags & BF_READ_TIMEOUT) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001714 s->be->be_counters.cli_aborts++;
1715 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001716 if (srv)
1717 srv->counters.cli_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01001718 s->flags |= SN_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01001719 }
1720 else if (s->req->flags & BF_WRITE_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001721 s->be->be_counters.srv_aborts++;
1722 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001723 if (srv)
1724 srv->counters.srv_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01001725 s->flags |= SN_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01001726 }
1727 else {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001728 s->be->be_counters.srv_aborts++;
1729 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001730 if (srv)
1731 srv->counters.srv_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01001732 s->flags |= SN_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01001733 }
Willy Tarreau84455332009-03-15 22:34:05 +01001734 sess_set_term_flags(s);
1735 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001736 else if (s->rep->flags & (BF_READ_ERROR|BF_READ_TIMEOUT|BF_WRITE_ERROR|BF_WRITE_TIMEOUT)) {
1737 /* Report it if the server got an error or a read timeout expired */
1738 s->rep->analysers = 0;
Willy Tarreauae526782010-03-04 20:34:23 +01001739 if (s->rep->flags & BF_READ_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001740 s->be->be_counters.srv_aborts++;
1741 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001742 if (srv)
1743 srv->counters.srv_aborts++;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001744 s->flags |= SN_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01001745 }
1746 else if (s->rep->flags & BF_READ_TIMEOUT) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001747 s->be->be_counters.srv_aborts++;
1748 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001749 if (srv)
1750 srv->counters.srv_aborts++;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001751 s->flags |= SN_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01001752 }
1753 else if (s->rep->flags & BF_WRITE_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001754 s->be->be_counters.cli_aborts++;
1755 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001756 if (srv)
1757 srv->counters.cli_aborts++;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001758 s->flags |= SN_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01001759 }
1760 else {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001761 s->be->be_counters.cli_aborts++;
1762 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001763 if (srv)
1764 srv->counters.cli_aborts++;
Willy Tarreauae526782010-03-04 20:34:23 +01001765 s->flags |= SN_ERR_CLITO;
1766 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001767 sess_set_term_flags(s);
1768 }
Willy Tarreau84455332009-03-15 22:34:05 +01001769 }
1770
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001771 /*
1772 * Here we take care of forwarding unhandled data. This also includes
1773 * connection establishments and shutdown requests.
1774 */
1775
1776
Willy Tarreau7c84bab2009-03-08 21:38:23 +01001777 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02001778 * everything. We configure the buffer to forward indefinitely.
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01001779 * Note that we're checking BF_SHUTR_NOW as an indication of a possible
1780 * recent call to buffer_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01001781 */
Willy Tarreau7c84bab2009-03-08 21:38:23 +01001782 if (!s->req->analysers &&
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01001783 !(s->req->flags & (BF_HIJACK|BF_SHUTW|BF_SHUTR_NOW)) &&
Willy Tarreau31971e52009-09-20 12:07:52 +02001784 (s->req->prod->state >= SI_ST_EST) &&
1785 (s->req->to_forward != BUF_INFINITE_FORWARD)) {
Willy Tarreau7c84bab2009-03-08 21:38:23 +01001786 /* This buffer is freewheeling, there's no analyser nor hijacker
1787 * attached to it. If any data are left in, we'll permit them to
1788 * move.
1789 */
Willy Tarreau90deb182010-01-07 00:20:41 +01001790 buffer_auto_read(s->req);
Willy Tarreau520d95e2009-09-19 21:04:57 +02001791 buffer_auto_connect(s->req);
1792 buffer_auto_close(s->req);
Willy Tarreau7c84bab2009-03-08 21:38:23 +01001793 buffer_flush(s->req);
Willy Tarreau5bd8c372009-01-19 00:32:22 +01001794
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01001795 /* We'll let data flow between the producer (if still connected)
1796 * to the consumer (which might possibly not be connected yet).
Willy Tarreau7c84bab2009-03-08 21:38:23 +01001797 */
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01001798 if (!(s->req->flags & (BF_SHUTR|BF_SHUTW_NOW)))
Willy Tarreau31971e52009-09-20 12:07:52 +02001799 buffer_forward(s->req, BUF_INFINITE_FORWARD);
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01001800 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01001801
Willy Tarreau7c84bab2009-03-08 21:38:23 +01001802 /* check if it is wise to enable kernel splicing to forward request data */
1803 if (!(s->req->flags & (BF_KERN_SPLICING|BF_SHUTR)) &&
1804 s->req->to_forward &&
1805 (global.tune.options & GTUNE_USE_SPLICE) &&
Willy Tarreaudc340a92009-06-28 23:10:19 +02001806 (s->si[0].flags & s->si[1].flags & SI_FL_CAP_SPLICE) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01001807 (pipes_used < global.maxpipes) &&
1808 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_REQ) ||
1809 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
1810 (s->req->flags & BF_STREAMER_FAST)))) {
1811 s->req->flags |= BF_KERN_SPLICING;
1812 }
1813
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001814 /* reflect what the L7 analysers have seen last */
1815 rqf_last = s->req->flags;
1816
1817 /*
1818 * Now forward all shutdown requests between both sides of the buffer
1819 */
1820
Willy Tarreau520d95e2009-09-19 21:04:57 +02001821 /* first, let's check if the request buffer needs to shutdown(write), which may
1822 * happen either because the input is closed or because we want to force a close
Willy Tarreaue4599762010-03-21 23:25:09 +01001823 * once the server has begun to respond.
Willy Tarreau520d95e2009-09-19 21:04:57 +02001824 */
Willy Tarreau82eeaf22009-12-29 12:09:05 +01001825 if (unlikely((s->req->flags & (BF_SHUTW|BF_SHUTW_NOW|BF_HIJACK|BF_AUTO_CLOSE|BF_SHUTR)) ==
Willy Tarreaue4599762010-03-21 23:25:09 +01001826 (BF_AUTO_CLOSE|BF_SHUTR)))
Willy Tarreauba0b63d2009-09-20 08:09:44 +02001827 buffer_shutw_now(s->req);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001828
1829 /* shutdown(write) pending */
Willy Tarreauba0b63d2009-09-20 08:09:44 +02001830 if (unlikely((s->req->flags & (BF_SHUTW|BF_SHUTW_NOW|BF_OUT_EMPTY)) == (BF_SHUTW_NOW|BF_OUT_EMPTY)))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001831 s->req->cons->shutw(s->req->cons);
1832
1833 /* shutdown(write) done on server side, we must stop the client too */
Willy Tarreau3dbc6942008-12-07 13:05:04 +01001834 if (unlikely((s->req->flags & (BF_SHUTW|BF_SHUTR|BF_SHUTR_NOW)) == BF_SHUTW &&
1835 !s->req->analysers))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001836 buffer_shutr_now(s->req);
1837
1838 /* shutdown(read) pending */
1839 if (unlikely((s->req->flags & (BF_SHUTR|BF_SHUTR_NOW)) == BF_SHUTR_NOW))
1840 s->req->prod->shutr(s->req->prod);
1841
Willy Tarreau520d95e2009-09-19 21:04:57 +02001842 /* it's possible that an upper layer has requested a connection setup or abort.
1843 * There are 2 situations where we decide to establish a new connection :
1844 * - there are data scheduled for emission in the buffer
1845 * - the BF_AUTO_CONNECT flag is set (active connection)
1846 */
1847 if (s->req->cons->state == SI_ST_INI) {
Willy Tarreaue4599762010-03-21 23:25:09 +01001848 if (!(s->req->flags & BF_SHUTW)) {
Willy Tarreauba0b63d2009-09-20 08:09:44 +02001849 if ((s->req->flags & (BF_AUTO_CONNECT|BF_OUT_EMPTY)) != BF_OUT_EMPTY) {
Willy Tarreaub24281b2011-02-13 13:16:36 +01001850 /* If we have an applet without a connect method, we immediately
Willy Tarreau85e7d002010-05-31 11:57:51 +02001851 * switch to the connected state, otherwise we perform a connection
1852 * request.
Willy Tarreau520d95e2009-09-19 21:04:57 +02001853 */
Willy Tarreau85e7d002010-05-31 11:57:51 +02001854 s->req->cons->state = SI_ST_REQ; /* new connection requested */
Willy Tarreau070ceb62010-06-01 10:36:43 +02001855 s->req->cons->conn_retries = s->be->conn_retries;
Willy Tarreau7c0a1512011-03-10 11:17:02 +01001856 if (unlikely(s->req->cons->target.type == TARG_TYPE_APPLET && !s->req->cons->connect)) {
Willy Tarreau520d95e2009-09-19 21:04:57 +02001857 s->req->cons->state = SI_ST_EST; /* connection established */
Willy Tarreau85e7d002010-05-31 11:57:51 +02001858 s->rep->flags |= BF_READ_ATTACHED; /* producer is now attached */
1859 s->req->wex = TICK_ETERNITY;
1860 }
Willy Tarreau520d95e2009-09-19 21:04:57 +02001861 }
Willy Tarreau73201222009-08-16 18:27:24 +02001862 }
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02001863 else {
Willy Tarreau92795622009-03-06 12:51:23 +01001864 s->req->cons->state = SI_ST_CLO; /* shutw+ini = abort */
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02001865 buffer_shutw_now(s->req); /* fix buffer flags upon abort */
1866 buffer_shutr_now(s->rep);
1867 }
Willy Tarreau92795622009-03-06 12:51:23 +01001868 }
1869
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001870
1871 /* we may have a pending connection request, or a connection waiting
1872 * for completion.
1873 */
1874 if (s->si[1].state >= SI_ST_REQ && s->si[1].state < SI_ST_CON) {
1875 do {
1876 /* nb: step 1 might switch from QUE to ASS, but we first want
1877 * to give a chance to step 2 to perform a redirect if needed.
1878 */
1879 if (s->si[1].state != SI_ST_REQ)
1880 sess_update_stream_int(s, &s->si[1]);
1881 if (s->si[1].state == SI_ST_REQ)
1882 sess_prepare_conn_req(s, &s->si[1]);
1883
Willy Tarreau827aee92011-03-10 16:55:02 +01001884 srv = target_srv(&s->target);
1885 if (s->si[1].state == SI_ST_ASS && srv && srv->rdr_len && (s->flags & SN_REDIRECTABLE))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001886 perform_http_redirect(s, &s->si[1]);
1887 } while (s->si[1].state == SI_ST_ASS);
1888 }
1889
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001890 /* Benchmarks have shown that it's optimal to do a full resync now */
Willy Tarreau0be0ef92009-03-08 19:20:25 +01001891 if (s->req->prod->state == SI_ST_DIS || s->req->cons->state == SI_ST_DIS)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001892 goto resync_stream_interface;
1893
Willy Tarreau815a9b22010-07-27 17:15:12 +02001894 /* otherwise we want to check if we need to resync the req buffer or not */
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001895 if ((s->req->flags ^ rqf_last) & BF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01001896 goto resync_request;
1897
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001898 /* perform output updates to the response buffer */
Willy Tarreau84455332009-03-15 22:34:05 +01001899
Willy Tarreau7c84bab2009-03-08 21:38:23 +01001900 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02001901 * everything. We configure the buffer to forward indefinitely.
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01001902 * Note that we're checking BF_SHUTR_NOW as an indication of a possible
1903 * recent call to buffer_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01001904 */
Willy Tarreau7c84bab2009-03-08 21:38:23 +01001905 if (!s->rep->analysers &&
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01001906 !(s->rep->flags & (BF_HIJACK|BF_SHUTW|BF_SHUTR_NOW)) &&
Willy Tarreau31971e52009-09-20 12:07:52 +02001907 (s->rep->prod->state >= SI_ST_EST) &&
1908 (s->rep->to_forward != BUF_INFINITE_FORWARD)) {
Willy Tarreau7c84bab2009-03-08 21:38:23 +01001909 /* This buffer is freewheeling, there's no analyser nor hijacker
1910 * attached to it. If any data are left in, we'll permit them to
1911 * move.
1912 */
Willy Tarreau90deb182010-01-07 00:20:41 +01001913 buffer_auto_read(s->rep);
Willy Tarreau520d95e2009-09-19 21:04:57 +02001914 buffer_auto_close(s->rep);
Willy Tarreau7c84bab2009-03-08 21:38:23 +01001915 buffer_flush(s->rep);
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01001916
1917 /* We'll let data flow between the producer (if still connected)
1918 * to the consumer.
1919 */
1920 if (!(s->rep->flags & (BF_SHUTR|BF_SHUTW_NOW)))
Willy Tarreau31971e52009-09-20 12:07:52 +02001921 buffer_forward(s->rep, BUF_INFINITE_FORWARD);
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01001922 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01001923
Willy Tarreau7c84bab2009-03-08 21:38:23 +01001924 /* check if it is wise to enable kernel splicing to forward response data */
1925 if (!(s->rep->flags & (BF_KERN_SPLICING|BF_SHUTR)) &&
1926 s->rep->to_forward &&
1927 (global.tune.options & GTUNE_USE_SPLICE) &&
Willy Tarreaudc340a92009-06-28 23:10:19 +02001928 (s->si[0].flags & s->si[1].flags & SI_FL_CAP_SPLICE) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01001929 (pipes_used < global.maxpipes) &&
1930 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_RTR) ||
1931 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
1932 (s->rep->flags & BF_STREAMER_FAST)))) {
1933 s->rep->flags |= BF_KERN_SPLICING;
1934 }
1935
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001936 /* reflect what the L7 analysers have seen last */
1937 rpf_last = s->rep->flags;
1938
1939 /*
1940 * Now forward all shutdown requests between both sides of the buffer
1941 */
1942
1943 /*
1944 * FIXME: this is probably where we should produce error responses.
1945 */
1946
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01001947 /* first, let's check if the response buffer needs to shutdown(write) */
Willy Tarreau520d95e2009-09-19 21:04:57 +02001948 if (unlikely((s->rep->flags & (BF_SHUTW|BF_SHUTW_NOW|BF_HIJACK|BF_AUTO_CLOSE|BF_SHUTR)) ==
1949 (BF_AUTO_CLOSE|BF_SHUTR)))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001950 buffer_shutw_now(s->rep);
1951
1952 /* shutdown(write) pending */
Willy Tarreauba0b63d2009-09-20 08:09:44 +02001953 if (unlikely((s->rep->flags & (BF_SHUTW|BF_OUT_EMPTY|BF_SHUTW_NOW)) == (BF_OUT_EMPTY|BF_SHUTW_NOW)))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001954 s->rep->cons->shutw(s->rep->cons);
1955
1956 /* shutdown(write) done on the client side, we must stop the server too */
Willy Tarreau3dbc6942008-12-07 13:05:04 +01001957 if (unlikely((s->rep->flags & (BF_SHUTW|BF_SHUTR|BF_SHUTR_NOW)) == BF_SHUTW) &&
1958 !s->rep->analysers)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001959 buffer_shutr_now(s->rep);
1960
1961 /* shutdown(read) pending */
1962 if (unlikely((s->rep->flags & (BF_SHUTR|BF_SHUTR_NOW)) == BF_SHUTR_NOW))
1963 s->rep->prod->shutr(s->rep->prod);
1964
Willy Tarreau0be0ef92009-03-08 19:20:25 +01001965 if (s->req->prod->state == SI_ST_DIS || s->req->cons->state == SI_ST_DIS)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001966 goto resync_stream_interface;
1967
Willy Tarreau0be0ef92009-03-08 19:20:25 +01001968 if (s->req->flags != rqf_last)
1969 goto resync_request;
1970
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001971 if ((s->rep->flags ^ rpf_last) & BF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01001972 goto resync_response;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001973
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001974 /* we're interested in getting wakeups again */
1975 s->req->prod->flags &= ~SI_FL_DONT_WAKE;
1976 s->req->cons->flags &= ~SI_FL_DONT_WAKE;
1977
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001978 /* This is needed only when debugging is enabled, to indicate
1979 * client-side or server-side close. Please note that in the unlikely
1980 * event where both sides would close at once, the sequence is reported
1981 * on the server side first.
1982 */
1983 if (unlikely((global.mode & MODE_DEBUG) &&
1984 (!(global.mode & MODE_QUIET) ||
1985 (global.mode & MODE_VERBOSE)))) {
1986 int len;
1987
1988 if (s->si[1].state == SI_ST_CLO &&
1989 s->si[1].prev_state == SI_ST_EST) {
1990 len = sprintf(trash, "%08x:%s.srvcls[%04x:%04x]\n",
1991 s->uniq_id, s->be->id,
1992 (unsigned short)s->si[0].fd,
1993 (unsigned short)s->si[1].fd);
1994 write(1, trash, len);
1995 }
1996
1997 if (s->si[0].state == SI_ST_CLO &&
1998 s->si[0].prev_state == SI_ST_EST) {
1999 len = sprintf(trash, "%08x:%s.clicls[%04x:%04x]\n",
2000 s->uniq_id, s->be->id,
2001 (unsigned short)s->si[0].fd,
2002 (unsigned short)s->si[1].fd);
2003 write(1, trash, len);
2004 }
2005 }
2006
2007 if (likely((s->rep->cons->state != SI_ST_CLO) ||
2008 (s->req->cons->state > SI_ST_INI && s->req->cons->state < SI_ST_CLO))) {
2009
2010 if ((s->fe->options & PR_O_CONTSTATS) && (s->flags & SN_BE_ASSIGNED))
2011 session_process_counters(s);
2012
Willy Tarreau7c0a1512011-03-10 11:17:02 +01002013 if (s->rep->cons->state == SI_ST_EST && s->rep->cons->target.type != TARG_TYPE_APPLET)
Willy Tarreaudc85b392009-08-18 07:38:19 +02002014 s->rep->cons->update(s->rep->cons);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002015
Willy Tarreau7c0a1512011-03-10 11:17:02 +01002016 if (s->req->cons->state == SI_ST_EST && s->req->cons->target.type != TARG_TYPE_APPLET)
Willy Tarreaudc85b392009-08-18 07:38:19 +02002017 s->req->cons->update(s->req->cons);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002018
Willy Tarreaua6eebb32010-06-04 11:40:20 +02002019 s->req->flags &= ~(BF_READ_NULL|BF_READ_PARTIAL|BF_WRITE_NULL|BF_WRITE_PARTIAL|BF_READ_ATTACHED);
2020 s->rep->flags &= ~(BF_READ_NULL|BF_READ_PARTIAL|BF_WRITE_NULL|BF_WRITE_PARTIAL|BF_READ_ATTACHED);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002021 s->si[0].prev_state = s->si[0].state;
2022 s->si[1].prev_state = s->si[1].state;
Willy Tarreaub0ef7352008-12-14 13:26:20 +01002023 s->si[0].flags &= ~(SI_FL_ERR|SI_FL_EXP);
2024 s->si[1].flags &= ~(SI_FL_ERR|SI_FL_EXP);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002025
2026 /* Trick: if a request is being waiting for the server to respond,
2027 * and if we know the server can timeout, we don't want the timeout
2028 * to expire on the client side first, but we're still interested
2029 * in passing data from the client to the server (eg: POST). Thus,
2030 * we can cancel the client's request timeout if the server's
2031 * request timeout is set and the server has not yet sent a response.
2032 */
2033
Willy Tarreau520d95e2009-09-19 21:04:57 +02002034 if ((s->rep->flags & (BF_AUTO_CLOSE|BF_SHUTR)) == 0 &&
Willy Tarreau86491c32008-12-14 09:04:47 +01002035 (tick_isset(s->req->wex) || tick_isset(s->rep->rex))) {
2036 s->req->flags |= BF_READ_NOEXP;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002037 s->req->rex = TICK_ETERNITY;
Willy Tarreau86491c32008-12-14 09:04:47 +01002038 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002039
Willy Tarreau7a20aa62010-07-13 16:30:45 +02002040 /* Call the stream interfaces' I/O handlers when embedded.
Willy Tarreau1accfc02009-09-05 20:57:35 +02002041 * Note that this one may wake the task up again.
2042 */
Willy Tarreau7c0a1512011-03-10 11:17:02 +01002043 if (s->req->cons->target.type == TARG_TYPE_APPLET ||
2044 s->rep->cons->target.type == TARG_TYPE_APPLET) {
2045 if (s->req->cons->target.type == TARG_TYPE_APPLET)
2046 s->req->cons->target.ptr.a->fct(s->req->cons);
2047 if (s->rep->cons->target.type == TARG_TYPE_APPLET)
2048 s->rep->cons->target.ptr.a->fct(s->rep->cons);
Willy Tarreau1accfc02009-09-05 20:57:35 +02002049 if (task_in_rq(t)) {
2050 /* If we woke up, we don't want to requeue the
2051 * task to the wait queue, but rather requeue
2052 * it into the runqueue ASAP.
2053 */
2054 t->expire = TICK_ETERNITY;
2055 return t;
2056 }
2057 }
2058
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002059 t->expire = tick_first(tick_first(s->req->rex, s->req->wex),
2060 tick_first(s->rep->rex, s->rep->wex));
2061 if (s->req->analysers)
2062 t->expire = tick_first(t->expire, s->req->analyse_exp);
2063
2064 if (s->si[0].exp)
2065 t->expire = tick_first(t->expire, s->si[0].exp);
2066
2067 if (s->si[1].exp)
2068 t->expire = tick_first(t->expire, s->si[1].exp);
2069
2070#ifdef DEBUG_FULL
Willy Tarreau127334e2009-03-28 10:47:26 +01002071 fprintf(stderr,
2072 "[%u] queuing with exp=%u req->rex=%u req->wex=%u req->ana_exp=%u"
2073 " rep->rex=%u rep->wex=%u, si[0].exp=%u, si[1].exp=%u, cs=%d, ss=%d\n",
2074 now_ms, t->expire, s->req->rex, s->req->wex, s->req->analyse_exp,
2075 s->rep->rex, s->rep->wex, s->si[0].exp, s->si[1].exp, s->si[0].state, s->si[1].state);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002076#endif
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002077
2078#ifdef DEBUG_DEV
2079 /* this may only happen when no timeout is set or in case of an FSM bug */
Willy Tarreaud0a201b2009-03-08 15:53:06 +01002080 if (!tick_isset(t->expire))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002081 ABORT_NOW();
2082#endif
Willy Tarreau26c25062009-03-08 09:38:41 +01002083 return t; /* nothing more to do */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002084 }
2085
2086 s->fe->feconn--;
2087 if (s->flags & SN_BE_ASSIGNED)
2088 s->be->beconn--;
2089 actconn--;
Willy Tarreauaf7ad002010-08-31 15:39:26 +02002090 jobs--;
Willy Tarreau6e6fb2b2009-08-16 18:20:44 +02002091 s->listener->nbconn--;
Willy Tarreau62793712011-07-24 19:23:38 +02002092 if (s->listener->state == LI_FULL)
2093 resume_listener(s->listener);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002094
Willy Tarreau08ceb102011-07-24 22:58:00 +02002095 /* Dequeues all of the listeners waiting for a resource */
2096 if (!LIST_ISEMPTY(&global_listener_queue))
2097 dequeue_all_listeners(&global_listener_queue);
2098
Willy Tarreaub32907b2011-07-25 08:37:44 +02002099 if (!LIST_ISEMPTY(&s->fe->listener_queue) &&
2100 (!s->fe->fe_sps_lim || freq_ctr_remain(&s->fe->fe_sess_per_sec, s->fe->fe_sps_lim, 0) > 0))
Willy Tarreau07687c12011-07-24 23:55:06 +02002101 dequeue_all_listeners(&s->fe->listener_queue);
2102
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002103 if (unlikely((global.mode & MODE_DEBUG) &&
2104 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)))) {
2105 int len;
Willy Tarreauec22b2c2009-03-06 13:07:40 +01002106 len = sprintf(trash, "%08x:%s.closed[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002107 s->uniq_id, s->be->id,
Willy Tarreauec22b2c2009-03-06 13:07:40 +01002108 (unsigned short)s->req->prod->fd, (unsigned short)s->req->cons->fd);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002109 write(1, trash, len);
2110 }
2111
2112 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
2113 session_process_counters(s);
2114
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002115 if (s->txn.status) {
2116 int n;
2117
2118 n = s->txn.status / 100;
2119 if (n < 1 || n > 5)
2120 n = 0;
2121
2122 if (s->fe->mode == PR_MODE_HTTP)
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002123 s->fe->fe_counters.p.http.rsp[n]++;
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002124
Willy Tarreau24657792010-02-26 10:30:28 +01002125 if ((s->flags & SN_BE_ASSIGNED) &&
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002126 (s->be->mode == PR_MODE_HTTP))
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002127 s->be->be_counters.p.http.rsp[n]++;
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002128 }
2129
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002130 /* let's do a final log if we need it */
2131 if (s->logs.logwait &&
2132 !(s->flags & SN_MONITOR) &&
2133 (!(s->fe->options & PR_O_NULLNOLOG) || s->req->total)) {
Willy Tarreaua5555ec2008-11-30 19:02:32 +01002134 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002135 }
2136
2137 /* the task MUST not be in the run queue anymore */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002138 session_free(s);
Willy Tarreau26c25062009-03-08 09:38:41 +01002139 task_delete(t);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002140 task_free(t);
Willy Tarreau26c25062009-03-08 09:38:41 +01002141 return NULL;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002142}
2143
Willy Tarreau7c669d72008-06-20 15:04:11 +02002144/*
2145 * This function adjusts sess->srv_conn and maintains the previous and new
2146 * server's served session counts. Setting newsrv to NULL is enough to release
2147 * current connection slot. This function also notifies any LB algo which might
2148 * expect to be informed about any change in the number of active sessions on a
2149 * server.
2150 */
2151void sess_change_server(struct session *sess, struct server *newsrv)
2152{
2153 if (sess->srv_conn == newsrv)
2154 return;
2155
2156 if (sess->srv_conn) {
2157 sess->srv_conn->served--;
2158 if (sess->srv_conn->proxy->lbprm.server_drop_conn)
2159 sess->srv_conn->proxy->lbprm.server_drop_conn(sess->srv_conn);
Simon Hormanaf514952011-06-21 14:34:57 +09002160 session_del_srv_conn(sess);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002161 }
2162
2163 if (newsrv) {
2164 newsrv->served++;
2165 if (newsrv->proxy->lbprm.server_take_conn)
2166 newsrv->proxy->lbprm.server_take_conn(newsrv);
Simon Hormanaf514952011-06-21 14:34:57 +09002167 session_add_srv_conn(sess, newsrv);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002168 }
2169}
2170
Willy Tarreau84455332009-03-15 22:34:05 +01002171/* Handle server-side errors for default protocols. It is called whenever a a
2172 * connection setup is aborted or a request is aborted in queue. It sets the
2173 * session termination flags so that the caller does not have to worry about
2174 * them. It's installed as ->srv_error for the server-side stream_interface.
2175 */
2176void default_srv_error(struct session *s, struct stream_interface *si)
2177{
2178 int err_type = si->err_type;
2179 int err = 0, fin = 0;
2180
2181 if (err_type & SI_ET_QUEUE_ABRT) {
2182 err = SN_ERR_CLICL;
2183 fin = SN_FINST_Q;
2184 }
2185 else if (err_type & SI_ET_CONN_ABRT) {
2186 err = SN_ERR_CLICL;
2187 fin = SN_FINST_C;
2188 }
2189 else if (err_type & SI_ET_QUEUE_TO) {
2190 err = SN_ERR_SRVTO;
2191 fin = SN_FINST_Q;
2192 }
2193 else if (err_type & SI_ET_QUEUE_ERR) {
2194 err = SN_ERR_SRVCL;
2195 fin = SN_FINST_Q;
2196 }
2197 else if (err_type & SI_ET_CONN_TO) {
2198 err = SN_ERR_SRVTO;
2199 fin = SN_FINST_C;
2200 }
2201 else if (err_type & SI_ET_CONN_ERR) {
2202 err = SN_ERR_SRVCL;
2203 fin = SN_FINST_C;
2204 }
2205 else /* SI_ET_CONN_OTHER and others */ {
2206 err = SN_ERR_INTERNAL;
2207 fin = SN_FINST_C;
2208 }
2209
2210 if (!(s->flags & SN_ERR_MASK))
2211 s->flags |= err;
2212 if (!(s->flags & SN_FINST_MASK))
2213 s->flags |= fin;
2214}
Willy Tarreau7c669d72008-06-20 15:04:11 +02002215
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02002216
Willy Tarreau8b22a712010-06-18 17:46:06 +02002217/************************************************************************/
2218/* All supported ACL keywords must be declared here. */
2219/************************************************************************/
2220
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002221/* set test->i to the General Purpose Counter 0 value in the stksess entry <ts> */
2222static int
2223acl_fetch_get_gpc0(struct stktable *table, struct acl_test *test, struct stksess *ts)
2224{
2225 test->flags = ACL_TEST_F_VOL_TEST;
2226 test->i = 0;
2227 if (ts != NULL) {
2228 void *ptr = stktable_data_ptr(table, ts, STKTABLE_DT_GPC0);
2229 if (!ptr)
2230 return 0; /* parameter not stored */
2231 test->i = stktable_data_cast(ptr, gpc0);
2232 }
2233 return 1;
2234}
2235
2236/* set test->i to the General Purpose Counter 0 value from the session's tracked
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002237 * frontend counters.
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002238 */
2239static int
Willy Tarreau56123282010-08-06 19:06:56 +02002240acl_fetch_sc1_get_gpc0(struct proxy *px, struct session *l4, void *l7, int dir,
2241 struct acl_expr *expr, struct acl_test *test)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002242{
Willy Tarreau56123282010-08-06 19:06:56 +02002243 if (!l4->stkctr1_entry)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002244 return 0;
Willy Tarreau56123282010-08-06 19:06:56 +02002245 return acl_fetch_get_gpc0(l4->stkctr1_table, test, l4->stkctr1_entry);
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002246}
2247
2248/* set test->i to the General Purpose Counter 0 value from the session's tracked
2249 * backend counters.
2250 */
2251static int
Willy Tarreau56123282010-08-06 19:06:56 +02002252acl_fetch_sc2_get_gpc0(struct proxy *px, struct session *l4, void *l7, int dir,
2253 struct acl_expr *expr, struct acl_test *test)
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002254{
Willy Tarreau56123282010-08-06 19:06:56 +02002255 if (!l4->stkctr2_entry)
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002256 return 0;
Willy Tarreau56123282010-08-06 19:06:56 +02002257 return acl_fetch_get_gpc0(l4->stkctr2_table, test, l4->stkctr2_entry);
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002258}
2259
2260/* set test->i to the General Purpose Counter 0 value from the session's source
2261 * address in the table pointed to by expr.
2262 */
2263static int
2264acl_fetch_src_get_gpc0(struct proxy *px, struct session *l4, void *l7, int dir,
2265 struct acl_expr *expr, struct acl_test *test)
2266{
2267 struct stktable_key *key;
2268
David du Colombier4f92d322011-03-24 11:09:31 +01002269 key = tcp_src_to_stktable_key(l4);
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002270 if (!key)
David du Colombier4f92d322011-03-24 11:09:31 +01002271 return 0;
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002272
2273 if (expr->arg_len)
2274 px = find_stktable(expr->arg.str);
2275
2276 if (!px)
2277 return 0; /* table not found */
2278
2279 return acl_fetch_get_gpc0(&px->table, test, stktable_lookup_key(&px->table, key));
2280}
2281
2282/* Increment the General Purpose Counter 0 value in the stksess entry <ts> and
2283 * return it into test->i.
2284 */
2285static int
2286acl_fetch_inc_gpc0(struct stktable *table, struct acl_test *test, struct stksess *ts)
2287{
2288 test->flags = ACL_TEST_F_VOL_TEST;
2289 test->i = 0;
2290 if (ts != NULL) {
2291 void *ptr = stktable_data_ptr(table, ts, STKTABLE_DT_GPC0);
2292 if (!ptr)
2293 return 0; /* parameter not stored */
2294 test->i = ++stktable_data_cast(ptr, gpc0);
2295 }
2296 return 1;
2297}
2298
2299/* Increment the General Purpose Counter 0 value from the session's tracked
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002300 * frontend counters and return it into test->i.
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002301 */
2302static int
Willy Tarreau56123282010-08-06 19:06:56 +02002303acl_fetch_sc1_inc_gpc0(struct proxy *px, struct session *l4, void *l7, int dir,
2304 struct acl_expr *expr, struct acl_test *test)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002305{
Willy Tarreau56123282010-08-06 19:06:56 +02002306 if (!l4->stkctr1_entry)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002307 return 0;
Willy Tarreau56123282010-08-06 19:06:56 +02002308 return acl_fetch_inc_gpc0(l4->stkctr1_table, test, l4->stkctr1_entry);
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002309}
2310
2311/* Increment the General Purpose Counter 0 value from the session's tracked
2312 * backend counters and return it into test->i.
2313 */
2314static int
Willy Tarreau56123282010-08-06 19:06:56 +02002315acl_fetch_sc2_inc_gpc0(struct proxy *px, struct session *l4, void *l7, int dir,
2316 struct acl_expr *expr, struct acl_test *test)
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002317{
Willy Tarreau56123282010-08-06 19:06:56 +02002318 if (!l4->stkctr2_entry)
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002319 return 0;
Willy Tarreau56123282010-08-06 19:06:56 +02002320 return acl_fetch_inc_gpc0(l4->stkctr2_table, test, l4->stkctr2_entry);
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002321}
2322
2323/* Increment the General Purpose Counter 0 value from the session's source
2324 * address in the table pointed to by expr, and return it into test->i.
2325 */
2326static int
2327acl_fetch_src_inc_gpc0(struct proxy *px, struct session *l4, void *l7, int dir,
2328 struct acl_expr *expr, struct acl_test *test)
2329{
2330 struct stktable_key *key;
2331
David du Colombier4f92d322011-03-24 11:09:31 +01002332 key = tcp_src_to_stktable_key(l4);
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002333 if (!key)
David du Colombier4f92d322011-03-24 11:09:31 +01002334 return 0;
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002335
2336 if (expr->arg_len)
2337 px = find_stktable(expr->arg.str);
2338
2339 if (!px)
2340 return 0; /* table not found */
2341
2342 return acl_fetch_inc_gpc0(&px->table, test, stktable_update_key(&px->table, key));
2343}
2344
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002345/* set test->i to the cumulated number of connections in the stksess entry <ts> */
2346static int
2347acl_fetch_conn_cnt(struct stktable *table, struct acl_test *test, struct stksess *ts)
2348{
2349 test->flags = ACL_TEST_F_VOL_TEST;
2350 test->i = 0;
2351 if (ts != NULL) {
2352 void *ptr = stktable_data_ptr(table, ts, STKTABLE_DT_CONN_CNT);
2353 if (!ptr)
2354 return 0; /* parameter not stored */
2355 test->i = stktable_data_cast(ptr, conn_cnt);
2356 }
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002357 return 1;
2358}
2359
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002360/* set test->i to the cumulated number of connections from the session's tracked FE counters */
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002361static int
Willy Tarreau56123282010-08-06 19:06:56 +02002362acl_fetch_sc1_conn_cnt(struct proxy *px, struct session *l4, void *l7, int dir,
2363 struct acl_expr *expr, struct acl_test *test)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002364{
Willy Tarreau56123282010-08-06 19:06:56 +02002365 if (!l4->stkctr1_entry)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002366 return 0;
2367
Willy Tarreau56123282010-08-06 19:06:56 +02002368 return acl_fetch_conn_cnt(l4->stkctr1_table, test, l4->stkctr1_entry);
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002369}
2370
2371/* set test->i to the cumulated number of connections from the session's tracked BE counters */
2372static int
Willy Tarreau56123282010-08-06 19:06:56 +02002373acl_fetch_sc2_conn_cnt(struct proxy *px, struct session *l4, void *l7, int dir,
2374 struct acl_expr *expr, struct acl_test *test)
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002375{
Willy Tarreau56123282010-08-06 19:06:56 +02002376 if (!l4->stkctr2_entry)
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002377 return 0;
2378
Willy Tarreau56123282010-08-06 19:06:56 +02002379 return acl_fetch_conn_cnt(l4->stkctr2_table, test, l4->stkctr2_entry);
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002380}
2381
2382/* set test->i to the cumulated number of connections from the session's source
2383 * address in the table pointed to by expr.
Willy Tarreau8b22a712010-06-18 17:46:06 +02002384 */
2385static int
2386acl_fetch_src_conn_cnt(struct proxy *px, struct session *l4, void *l7, int dir,
2387 struct acl_expr *expr, struct acl_test *test)
2388{
Willy Tarreau8b22a712010-06-18 17:46:06 +02002389 struct stktable_key *key;
2390
David du Colombier4f92d322011-03-24 11:09:31 +01002391 key = tcp_src_to_stktable_key(l4);
Willy Tarreau8b22a712010-06-18 17:46:06 +02002392 if (!key)
David du Colombier4f92d322011-03-24 11:09:31 +01002393 return 0;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002394
2395 if (expr->arg_len)
2396 px = find_stktable(expr->arg.str);
2397
2398 if (!px)
2399 return 0; /* table not found */
2400
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002401 return acl_fetch_conn_cnt(&px->table, test, stktable_lookup_key(&px->table, key));
Willy Tarreau8b22a712010-06-18 17:46:06 +02002402}
2403
Willy Tarreau91c43d72010-06-20 11:19:22 +02002404/* set test->i to the connection rate in the stksess entry <ts> over the configured period */
2405static int
2406acl_fetch_conn_rate(struct stktable *table, struct acl_test *test, struct stksess *ts)
2407{
2408 test->flags = ACL_TEST_F_VOL_TEST;
2409 test->i = 0;
2410 if (ts != NULL) {
2411 void *ptr = stktable_data_ptr(table, ts, STKTABLE_DT_CONN_RATE);
2412 if (!ptr)
2413 return 0; /* parameter not stored */
2414 test->i = read_freq_ctr_period(&stktable_data_cast(ptr, conn_rate),
2415 table->data_arg[STKTABLE_DT_CONN_RATE].u);
2416 }
2417 return 1;
2418}
2419
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002420/* set test->i to the connection rate from the session's tracked FE counters over
Willy Tarreau91c43d72010-06-20 11:19:22 +02002421 * the configured period.
2422 */
2423static int
Willy Tarreau56123282010-08-06 19:06:56 +02002424acl_fetch_sc1_conn_rate(struct proxy *px, struct session *l4, void *l7, int dir,
2425 struct acl_expr *expr, struct acl_test *test)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002426{
Willy Tarreau56123282010-08-06 19:06:56 +02002427 if (!l4->stkctr1_entry)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002428 return 0;
2429
Willy Tarreau56123282010-08-06 19:06:56 +02002430 return acl_fetch_conn_rate(l4->stkctr1_table, test, l4->stkctr1_entry);
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002431}
2432
2433/* set test->i to the connection rate from the session's tracked BE counters over
2434 * the configured period.
2435 */
2436static int
Willy Tarreau56123282010-08-06 19:06:56 +02002437acl_fetch_sc2_conn_rate(struct proxy *px, struct session *l4, void *l7, int dir,
2438 struct acl_expr *expr, struct acl_test *test)
Willy Tarreau91c43d72010-06-20 11:19:22 +02002439{
Willy Tarreau56123282010-08-06 19:06:56 +02002440 if (!l4->stkctr2_entry)
Willy Tarreau91c43d72010-06-20 11:19:22 +02002441 return 0;
2442
Willy Tarreau56123282010-08-06 19:06:56 +02002443 return acl_fetch_conn_rate(l4->stkctr2_table, test, l4->stkctr2_entry);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002444}
2445
2446/* set test->i to the connection rate from the session's source address in the
2447 * table pointed to by expr, over the configured period.
2448 */
2449static int
2450acl_fetch_src_conn_rate(struct proxy *px, struct session *l4, void *l7, int dir,
2451 struct acl_expr *expr, struct acl_test *test)
2452{
2453 struct stktable_key *key;
2454
David du Colombier4f92d322011-03-24 11:09:31 +01002455 key = tcp_src_to_stktable_key(l4);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002456 if (!key)
David du Colombier4f92d322011-03-24 11:09:31 +01002457 return 0;
Willy Tarreau91c43d72010-06-20 11:19:22 +02002458
2459 if (expr->arg_len)
2460 px = find_stktable(expr->arg.str);
2461
2462 if (!px)
2463 return 0; /* table not found */
2464
2465 return acl_fetch_conn_rate(&px->table, test, stktable_lookup_key(&px->table, key));
2466}
2467
Willy Tarreau8b22a712010-06-18 17:46:06 +02002468/* set test->i to the number of connections from the session's source address
2469 * in the table pointed to by expr, after updating it.
2470 */
2471static int
2472acl_fetch_src_updt_conn_cnt(struct proxy *px, struct session *l4, void *l7, int dir,
2473 struct acl_expr *expr, struct acl_test *test)
2474{
2475 struct stksess *ts;
2476 struct stktable_key *key;
2477 void *ptr;
2478
David du Colombier4f92d322011-03-24 11:09:31 +01002479 key = tcp_src_to_stktable_key(l4);
Willy Tarreau8b22a712010-06-18 17:46:06 +02002480 if (!key)
David du Colombier4f92d322011-03-24 11:09:31 +01002481 return 0;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002482
2483 if (expr->arg_len)
2484 px = find_stktable(expr->arg.str);
2485
2486 if (!px)
2487 return 0; /* table not found */
2488
Willy Tarreau1f7e9252010-06-20 12:27:21 +02002489 if ((ts = stktable_update_key(&px->table, key)) == NULL)
2490 /* entry does not exist and could not be created */
2491 return 0;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002492
2493 ptr = stktable_data_ptr(&px->table, ts, STKTABLE_DT_CONN_CNT);
2494 if (!ptr)
2495 return 0; /* parameter not stored in this table */
2496
2497 test->i = ++stktable_data_cast(ptr, conn_cnt);
2498 test->flags = ACL_TEST_F_VOL_TEST;
2499 return 1;
2500}
2501
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002502/* set test->i to the number of concurrent connections in the stksess entry <ts> */
2503static int
2504acl_fetch_conn_cur(struct stktable *table, struct acl_test *test, struct stksess *ts)
2505{
2506 test->flags = ACL_TEST_F_VOL_TEST;
2507 test->i = 0;
2508
2509 if (ts != NULL) {
2510 void *ptr = stktable_data_ptr(table, ts, STKTABLE_DT_CONN_CUR);
2511 if (!ptr)
2512 return 0; /* parameter not stored */
2513 test->i = stktable_data_cast(ptr, conn_cur);
2514 }
2515 return 1;
2516}
2517
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002518/* set test->i to the number of concurrent connections from the session's tracked FE counters */
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002519static int
Willy Tarreau56123282010-08-06 19:06:56 +02002520acl_fetch_sc1_conn_cur(struct proxy *px, struct session *l4, void *l7, int dir,
2521 struct acl_expr *expr, struct acl_test *test)
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002522{
Willy Tarreau56123282010-08-06 19:06:56 +02002523 if (!l4->stkctr1_entry)
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002524 return 0;
2525
Willy Tarreau56123282010-08-06 19:06:56 +02002526 return acl_fetch_conn_cur(l4->stkctr1_table, test, l4->stkctr1_entry);
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002527}
2528
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002529/* set test->i to the number of concurrent connections from the session's tracked BE counters */
2530static int
Willy Tarreau56123282010-08-06 19:06:56 +02002531acl_fetch_sc2_conn_cur(struct proxy *px, struct session *l4, void *l7, int dir,
2532 struct acl_expr *expr, struct acl_test *test)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002533{
Willy Tarreau56123282010-08-06 19:06:56 +02002534 if (!l4->stkctr2_entry)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002535 return 0;
2536
Willy Tarreau56123282010-08-06 19:06:56 +02002537 return acl_fetch_conn_cur(l4->stkctr2_table, test, l4->stkctr2_entry);
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002538}
2539
Willy Tarreau38285c12010-06-18 16:35:43 +02002540/* set test->i to the number of concurrent connections from the session's source
2541 * address in the table pointed to by expr.
2542 */
2543static int
2544acl_fetch_src_conn_cur(struct proxy *px, struct session *l4, void *l7, int dir,
2545 struct acl_expr *expr, struct acl_test *test)
2546{
Willy Tarreau38285c12010-06-18 16:35:43 +02002547 struct stktable_key *key;
2548
David du Colombier4f92d322011-03-24 11:09:31 +01002549 key = tcp_src_to_stktable_key(l4);
Willy Tarreau38285c12010-06-18 16:35:43 +02002550 if (!key)
David du Colombier4f92d322011-03-24 11:09:31 +01002551 return 0;
Willy Tarreau38285c12010-06-18 16:35:43 +02002552
2553 if (expr->arg_len)
2554 px = find_stktable(expr->arg.str);
2555
2556 if (!px)
2557 return 0; /* table not found */
2558
Willy Tarreau1b6e6082011-03-16 06:55:50 +01002559 return acl_fetch_conn_cur(&px->table, test, stktable_lookup_key(&px->table, key));
Willy Tarreau38285c12010-06-18 16:35:43 +02002560}
2561
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002562/* set test->i to the cumulated number of sessions in the stksess entry <ts> */
2563static int
2564acl_fetch_sess_cnt(struct stktable *table, struct acl_test *test, struct stksess *ts)
2565{
2566 test->flags = ACL_TEST_F_VOL_TEST;
2567 test->i = 0;
2568 if (ts != NULL) {
2569 void *ptr = stktable_data_ptr(table, ts, STKTABLE_DT_SESS_CNT);
2570 if (!ptr)
2571 return 0; /* parameter not stored */
2572 test->i = stktable_data_cast(ptr, sess_cnt);
2573 }
2574 return 1;
2575}
2576
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002577/* set test->i to the cumulated number of sessions from the session's tracked FE counters */
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002578static int
Willy Tarreau56123282010-08-06 19:06:56 +02002579acl_fetch_sc1_sess_cnt(struct proxy *px, struct session *l4, void *l7, int dir,
2580 struct acl_expr *expr, struct acl_test *test)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002581{
Willy Tarreau56123282010-08-06 19:06:56 +02002582 if (!l4->stkctr1_entry)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002583 return 0;
2584
Willy Tarreau56123282010-08-06 19:06:56 +02002585 return acl_fetch_sess_cnt(l4->stkctr1_table, test, l4->stkctr1_entry);
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002586}
2587
2588/* set test->i to the cumulated number of sessions from the session's tracked BE counters */
2589static int
Willy Tarreau56123282010-08-06 19:06:56 +02002590acl_fetch_sc2_sess_cnt(struct proxy *px, struct session *l4, void *l7, int dir,
2591 struct acl_expr *expr, struct acl_test *test)
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002592{
Willy Tarreau56123282010-08-06 19:06:56 +02002593 if (!l4->stkctr2_entry)
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002594 return 0;
2595
Willy Tarreau56123282010-08-06 19:06:56 +02002596 return acl_fetch_sess_cnt(l4->stkctr2_table, test, l4->stkctr2_entry);
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002597}
2598
2599/* set test->i to the cumulated number of session from the session's source
2600 * address in the table pointed to by expr.
2601 */
2602static int
2603acl_fetch_src_sess_cnt(struct proxy *px, struct session *l4, void *l7, int dir,
2604 struct acl_expr *expr, struct acl_test *test)
2605{
2606 struct stktable_key *key;
2607
David du Colombier4f92d322011-03-24 11:09:31 +01002608 key = tcp_src_to_stktable_key(l4);
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002609 if (!key)
David du Colombier4f92d322011-03-24 11:09:31 +01002610 return 0;
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002611
2612 if (expr->arg_len)
2613 px = find_stktable(expr->arg.str);
2614
2615 if (!px)
2616 return 0; /* table not found */
2617
2618 return acl_fetch_sess_cnt(&px->table, test, stktable_lookup_key(&px->table, key));
2619}
2620
Willy Tarreau91c43d72010-06-20 11:19:22 +02002621/* set test->i to the session rate in the stksess entry <ts> over the configured period */
2622static int
2623acl_fetch_sess_rate(struct stktable *table, struct acl_test *test, struct stksess *ts)
2624{
2625 test->flags = ACL_TEST_F_VOL_TEST;
2626 test->i = 0;
2627 if (ts != NULL) {
2628 void *ptr = stktable_data_ptr(table, ts, STKTABLE_DT_SESS_RATE);
2629 if (!ptr)
2630 return 0; /* parameter not stored */
2631 test->i = read_freq_ctr_period(&stktable_data_cast(ptr, sess_rate),
2632 table->data_arg[STKTABLE_DT_SESS_RATE].u);
2633 }
2634 return 1;
2635}
2636
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002637/* set test->i to the session rate from the session's tracked FE counters over
2638 * the configured period.
2639 */
2640static int
Willy Tarreau56123282010-08-06 19:06:56 +02002641acl_fetch_sc1_sess_rate(struct proxy *px, struct session *l4, void *l7, int dir,
2642 struct acl_expr *expr, struct acl_test *test)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002643{
Willy Tarreau56123282010-08-06 19:06:56 +02002644 if (!l4->stkctr1_entry)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002645 return 0;
2646
Willy Tarreau56123282010-08-06 19:06:56 +02002647 return acl_fetch_sess_rate(l4->stkctr1_table, test, l4->stkctr1_entry);
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002648}
2649
2650/* set test->i to the session rate from the session's tracked BE counters over
Willy Tarreau91c43d72010-06-20 11:19:22 +02002651 * the configured period.
2652 */
2653static int
Willy Tarreau56123282010-08-06 19:06:56 +02002654acl_fetch_sc2_sess_rate(struct proxy *px, struct session *l4, void *l7, int dir,
2655 struct acl_expr *expr, struct acl_test *test)
Willy Tarreau91c43d72010-06-20 11:19:22 +02002656{
Willy Tarreau56123282010-08-06 19:06:56 +02002657 if (!l4->stkctr2_entry)
Willy Tarreau91c43d72010-06-20 11:19:22 +02002658 return 0;
2659
Willy Tarreau56123282010-08-06 19:06:56 +02002660 return acl_fetch_sess_rate(l4->stkctr2_table, test, l4->stkctr2_entry);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002661}
2662
2663/* set test->i to the session rate from the session's source address in the
2664 * table pointed to by expr, over the configured period.
2665 */
2666static int
2667acl_fetch_src_sess_rate(struct proxy *px, struct session *l4, void *l7, int dir,
2668 struct acl_expr *expr, struct acl_test *test)
2669{
2670 struct stktable_key *key;
2671
David du Colombier4f92d322011-03-24 11:09:31 +01002672 key = tcp_src_to_stktable_key(l4);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002673 if (!key)
David du Colombier4f92d322011-03-24 11:09:31 +01002674 return 0;
Willy Tarreau91c43d72010-06-20 11:19:22 +02002675
2676 if (expr->arg_len)
2677 px = find_stktable(expr->arg.str);
2678
2679 if (!px)
2680 return 0; /* table not found */
2681
2682 return acl_fetch_sess_rate(&px->table, test, stktable_lookup_key(&px->table, key));
2683}
2684
Willy Tarreauda7ff642010-06-23 11:44:09 +02002685/* set test->i to the cumulated number of sessions in the stksess entry <ts> */
2686static int
2687acl_fetch_http_req_cnt(struct stktable *table, struct acl_test *test, struct stksess *ts)
2688{
2689 test->flags = ACL_TEST_F_VOL_TEST;
2690 test->i = 0;
2691 if (ts != NULL) {
2692 void *ptr = stktable_data_ptr(table, ts, STKTABLE_DT_HTTP_REQ_CNT);
2693 if (!ptr)
2694 return 0; /* parameter not stored */
2695 test->i = stktable_data_cast(ptr, http_req_cnt);
2696 }
2697 return 1;
2698}
2699
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002700/* set test->i to the cumulated number of sessions from the session's tracked FE counters */
Willy Tarreauda7ff642010-06-23 11:44:09 +02002701static int
Willy Tarreau56123282010-08-06 19:06:56 +02002702acl_fetch_sc1_http_req_cnt(struct proxy *px, struct session *l4, void *l7, int dir,
2703 struct acl_expr *expr, struct acl_test *test)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002704{
Willy Tarreau56123282010-08-06 19:06:56 +02002705 if (!l4->stkctr1_entry)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002706 return 0;
2707
Willy Tarreau56123282010-08-06 19:06:56 +02002708 return acl_fetch_http_req_cnt(l4->stkctr1_table, test, l4->stkctr1_entry);
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002709}
2710
2711/* set test->i to the cumulated number of sessions from the session's tracked BE counters */
2712static int
Willy Tarreau56123282010-08-06 19:06:56 +02002713acl_fetch_sc2_http_req_cnt(struct proxy *px, struct session *l4, void *l7, int dir,
2714 struct acl_expr *expr, struct acl_test *test)
Willy Tarreauda7ff642010-06-23 11:44:09 +02002715{
Willy Tarreau56123282010-08-06 19:06:56 +02002716 if (!l4->stkctr2_entry)
Willy Tarreauda7ff642010-06-23 11:44:09 +02002717 return 0;
2718
Willy Tarreau56123282010-08-06 19:06:56 +02002719 return acl_fetch_http_req_cnt(l4->stkctr2_table, test, l4->stkctr2_entry);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002720}
2721
2722/* set test->i to the cumulated number of session from the session's source
2723 * address in the table pointed to by expr.
2724 */
2725static int
2726acl_fetch_src_http_req_cnt(struct proxy *px, struct session *l4, void *l7, int dir,
Willy Tarreau56123282010-08-06 19:06:56 +02002727 struct acl_expr *expr, struct acl_test *test)
Willy Tarreauda7ff642010-06-23 11:44:09 +02002728{
2729 struct stktable_key *key;
2730
David du Colombier4f92d322011-03-24 11:09:31 +01002731 key = tcp_src_to_stktable_key(l4);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002732 if (!key)
David du Colombier4f92d322011-03-24 11:09:31 +01002733 return 0;
Willy Tarreauda7ff642010-06-23 11:44:09 +02002734
2735 if (expr->arg_len)
2736 px = find_stktable(expr->arg.str);
2737
2738 if (!px)
2739 return 0; /* table not found */
2740
2741 return acl_fetch_http_req_cnt(&px->table, test, stktable_lookup_key(&px->table, key));
2742}
2743
2744/* set test->i to the session rate in the stksess entry <ts> over the configured period */
2745static int
2746acl_fetch_http_req_rate(struct stktable *table, struct acl_test *test, struct stksess *ts)
2747{
2748 test->flags = ACL_TEST_F_VOL_TEST;
2749 test->i = 0;
2750 if (ts != NULL) {
2751 void *ptr = stktable_data_ptr(table, ts, STKTABLE_DT_HTTP_REQ_RATE);
2752 if (!ptr)
2753 return 0; /* parameter not stored */
2754 test->i = read_freq_ctr_period(&stktable_data_cast(ptr, http_req_rate),
2755 table->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u);
2756 }
2757 return 1;
2758}
2759
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002760/* set test->i to the session rate from the session's tracked FE counters over
Willy Tarreauda7ff642010-06-23 11:44:09 +02002761 * the configured period.
2762 */
2763static int
Willy Tarreau56123282010-08-06 19:06:56 +02002764acl_fetch_sc1_http_req_rate(struct proxy *px, struct session *l4, void *l7, int dir,
2765 struct acl_expr *expr, struct acl_test *test)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002766{
Willy Tarreau56123282010-08-06 19:06:56 +02002767 if (!l4->stkctr1_entry)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002768 return 0;
2769
Willy Tarreau56123282010-08-06 19:06:56 +02002770 return acl_fetch_http_req_rate(l4->stkctr1_table, test, l4->stkctr1_entry);
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002771}
2772
2773/* set test->i to the session rate from the session's tracked BE counters over
2774 * the configured period.
2775 */
2776static int
Willy Tarreau56123282010-08-06 19:06:56 +02002777acl_fetch_sc2_http_req_rate(struct proxy *px, struct session *l4, void *l7, int dir,
2778 struct acl_expr *expr, struct acl_test *test)
Willy Tarreauda7ff642010-06-23 11:44:09 +02002779{
Willy Tarreau56123282010-08-06 19:06:56 +02002780 if (!l4->stkctr2_entry)
Willy Tarreauda7ff642010-06-23 11:44:09 +02002781 return 0;
2782
Willy Tarreau56123282010-08-06 19:06:56 +02002783 return acl_fetch_http_req_rate(l4->stkctr2_table, test, l4->stkctr2_entry);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002784}
2785
2786/* set test->i to the session rate from the session's source address in the
2787 * table pointed to by expr, over the configured period.
2788 */
2789static int
2790acl_fetch_src_http_req_rate(struct proxy *px, struct session *l4, void *l7, int dir,
Willy Tarreau56123282010-08-06 19:06:56 +02002791 struct acl_expr *expr, struct acl_test *test)
Willy Tarreauda7ff642010-06-23 11:44:09 +02002792{
2793 struct stktable_key *key;
2794
David du Colombier4f92d322011-03-24 11:09:31 +01002795 key = tcp_src_to_stktable_key(l4);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002796 if (!key)
David du Colombier4f92d322011-03-24 11:09:31 +01002797 return 0;
Willy Tarreauda7ff642010-06-23 11:44:09 +02002798
2799 if (expr->arg_len)
2800 px = find_stktable(expr->arg.str);
2801
2802 if (!px)
2803 return 0; /* table not found */
2804
2805 return acl_fetch_http_req_rate(&px->table, test, stktable_lookup_key(&px->table, key));
2806}
2807
2808/* set test->i to the cumulated number of sessions in the stksess entry <ts> */
2809static int
2810acl_fetch_http_err_cnt(struct stktable *table, struct acl_test *test, struct stksess *ts)
2811{
2812 test->flags = ACL_TEST_F_VOL_TEST;
2813 test->i = 0;
2814 if (ts != NULL) {
2815 void *ptr = stktable_data_ptr(table, ts, STKTABLE_DT_HTTP_ERR_CNT);
2816 if (!ptr)
2817 return 0; /* parameter not stored */
2818 test->i = stktable_data_cast(ptr, http_err_cnt);
2819 }
2820 return 1;
2821}
2822
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002823/* set test->i to the cumulated number of sessions from the session's tracked FE counters */
Willy Tarreauda7ff642010-06-23 11:44:09 +02002824static int
Willy Tarreau56123282010-08-06 19:06:56 +02002825acl_fetch_sc1_http_err_cnt(struct proxy *px, struct session *l4, void *l7, int dir,
2826 struct acl_expr *expr, struct acl_test *test)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002827{
Willy Tarreau56123282010-08-06 19:06:56 +02002828 if (!l4->stkctr1_entry)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002829 return 0;
2830
Willy Tarreau56123282010-08-06 19:06:56 +02002831 return acl_fetch_http_err_cnt(l4->stkctr1_table, test, l4->stkctr1_entry);
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002832}
2833
2834/* set test->i to the cumulated number of sessions from the session's tracked BE counters */
2835static int
Willy Tarreau56123282010-08-06 19:06:56 +02002836acl_fetch_sc2_http_err_cnt(struct proxy *px, struct session *l4, void *l7, int dir,
2837 struct acl_expr *expr, struct acl_test *test)
Willy Tarreauda7ff642010-06-23 11:44:09 +02002838{
Willy Tarreau56123282010-08-06 19:06:56 +02002839 if (!l4->stkctr2_entry)
Willy Tarreauda7ff642010-06-23 11:44:09 +02002840 return 0;
2841
Willy Tarreau56123282010-08-06 19:06:56 +02002842 return acl_fetch_http_err_cnt(l4->stkctr2_table, test, l4->stkctr2_entry);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002843}
2844
2845/* set test->i to the cumulated number of session from the session's source
2846 * address in the table pointed to by expr.
2847 */
2848static int
2849acl_fetch_src_http_err_cnt(struct proxy *px, struct session *l4, void *l7, int dir,
Willy Tarreau56123282010-08-06 19:06:56 +02002850 struct acl_expr *expr, struct acl_test *test)
Willy Tarreauda7ff642010-06-23 11:44:09 +02002851{
2852 struct stktable_key *key;
2853
David du Colombier4f92d322011-03-24 11:09:31 +01002854 key = tcp_src_to_stktable_key(l4);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002855 if (!key)
David du Colombier4f92d322011-03-24 11:09:31 +01002856 return 0;
Willy Tarreauda7ff642010-06-23 11:44:09 +02002857
2858 if (expr->arg_len)
2859 px = find_stktable(expr->arg.str);
2860
2861 if (!px)
2862 return 0; /* table not found */
2863
2864 return acl_fetch_http_err_cnt(&px->table, test, stktable_lookup_key(&px->table, key));
2865}
2866
2867/* set test->i to the session rate in the stksess entry <ts> over the configured period */
2868static int
2869acl_fetch_http_err_rate(struct stktable *table, struct acl_test *test, struct stksess *ts)
2870{
2871 test->flags = ACL_TEST_F_VOL_TEST;
2872 test->i = 0;
2873 if (ts != NULL) {
2874 void *ptr = stktable_data_ptr(table, ts, STKTABLE_DT_HTTP_ERR_RATE);
2875 if (!ptr)
2876 return 0; /* parameter not stored */
2877 test->i = read_freq_ctr_period(&stktable_data_cast(ptr, http_err_rate),
2878 table->data_arg[STKTABLE_DT_HTTP_ERR_RATE].u);
2879 }
2880 return 1;
2881}
2882
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002883/* set test->i to the session rate from the session's tracked FE counters over
Willy Tarreauda7ff642010-06-23 11:44:09 +02002884 * the configured period.
2885 */
2886static int
Willy Tarreau56123282010-08-06 19:06:56 +02002887acl_fetch_sc1_http_err_rate(struct proxy *px, struct session *l4, void *l7, int dir,
2888 struct acl_expr *expr, struct acl_test *test)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002889{
Willy Tarreau56123282010-08-06 19:06:56 +02002890 if (!l4->stkctr1_entry)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002891 return 0;
2892
Willy Tarreau56123282010-08-06 19:06:56 +02002893 return acl_fetch_http_err_rate(l4->stkctr1_table, test, l4->stkctr1_entry);
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002894}
2895
2896/* set test->i to the session rate from the session's tracked BE counters over
2897 * the configured period.
2898 */
2899static int
Willy Tarreau56123282010-08-06 19:06:56 +02002900acl_fetch_sc2_http_err_rate(struct proxy *px, struct session *l4, void *l7, int dir,
2901 struct acl_expr *expr, struct acl_test *test)
Willy Tarreauda7ff642010-06-23 11:44:09 +02002902{
Willy Tarreau56123282010-08-06 19:06:56 +02002903 if (!l4->stkctr2_entry)
Willy Tarreauda7ff642010-06-23 11:44:09 +02002904 return 0;
2905
Willy Tarreau56123282010-08-06 19:06:56 +02002906 return acl_fetch_http_err_rate(l4->stkctr2_table, test, l4->stkctr2_entry);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002907}
2908
2909/* set test->i to the session rate from the session's source address in the
2910 * table pointed to by expr, over the configured period.
2911 */
2912static int
2913acl_fetch_src_http_err_rate(struct proxy *px, struct session *l4, void *l7, int dir,
2914 struct acl_expr *expr, struct acl_test *test)
2915{
2916 struct stktable_key *key;
2917
David du Colombier4f92d322011-03-24 11:09:31 +01002918 key = tcp_src_to_stktable_key(l4);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002919 if (!key)
David du Colombier4f92d322011-03-24 11:09:31 +01002920 return 0;
Willy Tarreauda7ff642010-06-23 11:44:09 +02002921
2922 if (expr->arg_len)
2923 px = find_stktable(expr->arg.str);
2924
2925 if (!px)
2926 return 0; /* table not found */
2927
2928 return acl_fetch_http_err_rate(&px->table, test, stktable_lookup_key(&px->table, key));
2929}
2930
Willy Tarreau1aa006f2010-06-18 21:52:52 +02002931/* set test->i to the number of kbytes received from clients matching the stksess entry <ts> */
2932static int
2933acl_fetch_kbytes_in(struct stktable *table, struct acl_test *test, struct stksess *ts)
2934{
2935 test->flags = ACL_TEST_F_VOL_TEST;
2936 test->i = 0;
2937
2938 if (ts != NULL) {
2939 void *ptr = stktable_data_ptr(table, ts, STKTABLE_DT_BYTES_IN_CNT);
2940 if (!ptr)
2941 return 0; /* parameter not stored */
2942 test->i = stktable_data_cast(ptr, bytes_in_cnt) >> 10;
2943 }
2944 return 1;
2945}
2946
2947/* set test->i to the number of kbytes received from clients according to the
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002948 * session's tracked FE counters.
Willy Tarreau1aa006f2010-06-18 21:52:52 +02002949 */
2950static int
Willy Tarreau56123282010-08-06 19:06:56 +02002951acl_fetch_sc1_kbytes_in(struct proxy *px, struct session *l4, void *l7, int dir,
2952 struct acl_expr *expr, struct acl_test *test)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002953{
Willy Tarreau56123282010-08-06 19:06:56 +02002954 if (!l4->stkctr1_entry)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002955 return 0;
2956
Willy Tarreau56123282010-08-06 19:06:56 +02002957 return acl_fetch_kbytes_in(l4->stkctr1_table, test, l4->stkctr1_entry);
Willy Tarreauf059a0f2010-08-03 16:29:52 +02002958}
2959
2960/* set test->i to the number of kbytes received from clients according to the
2961 * session's tracked BE counters.
2962 */
2963static int
Willy Tarreau56123282010-08-06 19:06:56 +02002964acl_fetch_sc2_kbytes_in(struct proxy *px, struct session *l4, void *l7, int dir,
2965 struct acl_expr *expr, struct acl_test *test)
Willy Tarreau1aa006f2010-06-18 21:52:52 +02002966{
Willy Tarreau56123282010-08-06 19:06:56 +02002967 if (!l4->stkctr2_entry)
Willy Tarreau1aa006f2010-06-18 21:52:52 +02002968 return 0;
2969
Willy Tarreau56123282010-08-06 19:06:56 +02002970 return acl_fetch_kbytes_in(l4->stkctr2_table, test, l4->stkctr2_entry);
Willy Tarreau1aa006f2010-06-18 21:52:52 +02002971}
2972
Willy Tarreau855e4bb2010-06-18 18:33:32 +02002973/* set test->i to the number of kbytes received from the session's source
2974 * address in the table pointed to by expr.
2975 */
2976static int
2977acl_fetch_src_kbytes_in(struct proxy *px, struct session *l4, void *l7, int dir,
2978 struct acl_expr *expr, struct acl_test *test)
2979{
Willy Tarreau855e4bb2010-06-18 18:33:32 +02002980 struct stktable_key *key;
2981
David du Colombier4f92d322011-03-24 11:09:31 +01002982 key = tcp_src_to_stktable_key(l4);
Willy Tarreau855e4bb2010-06-18 18:33:32 +02002983 if (!key)
David du Colombier4f92d322011-03-24 11:09:31 +01002984 return 0;
Willy Tarreau855e4bb2010-06-18 18:33:32 +02002985
2986 if (expr->arg_len)
2987 px = find_stktable(expr->arg.str);
2988
2989 if (!px)
2990 return 0; /* table not found */
2991
Willy Tarreau1aa006f2010-06-18 21:52:52 +02002992 return acl_fetch_kbytes_in(&px->table, test, stktable_lookup_key(&px->table, key));
2993}
2994
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02002995/* set test->i to the bytes rate from clients in the stksess entry <ts> over the
2996 * configured period.
2997 */
2998static int
2999acl_fetch_bytes_in_rate(struct stktable *table, struct acl_test *test, struct stksess *ts)
3000{
3001 test->flags = ACL_TEST_F_VOL_TEST;
3002 test->i = 0;
3003 if (ts != NULL) {
3004 void *ptr = stktable_data_ptr(table, ts, STKTABLE_DT_BYTES_IN_RATE);
3005 if (!ptr)
3006 return 0; /* parameter not stored */
3007 test->i = read_freq_ctr_period(&stktable_data_cast(ptr, bytes_in_rate),
3008 table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u);
3009 }
3010 return 1;
3011}
3012
Willy Tarreauf059a0f2010-08-03 16:29:52 +02003013/* set test->i to the bytes rate from clients from the session's tracked FE
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003014 * counters over the configured period.
3015 */
3016static int
Willy Tarreau56123282010-08-06 19:06:56 +02003017acl_fetch_sc1_bytes_in_rate(struct proxy *px, struct session *l4, void *l7, int dir,
3018 struct acl_expr *expr, struct acl_test *test)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02003019{
Willy Tarreau56123282010-08-06 19:06:56 +02003020 if (!l4->stkctr1_entry)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02003021 return 0;
3022
Willy Tarreau56123282010-08-06 19:06:56 +02003023 return acl_fetch_bytes_in_rate(l4->stkctr1_table, test, l4->stkctr1_entry);
Willy Tarreauf059a0f2010-08-03 16:29:52 +02003024}
3025
3026/* set test->i to the bytes rate from clients from the session's tracked BE
3027 * counters over the configured period.
3028 */
3029static int
Willy Tarreau56123282010-08-06 19:06:56 +02003030acl_fetch_sc2_bytes_in_rate(struct proxy *px, struct session *l4, void *l7, int dir,
3031 struct acl_expr *expr, struct acl_test *test)
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003032{
Willy Tarreau56123282010-08-06 19:06:56 +02003033 if (!l4->stkctr2_entry)
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003034 return 0;
3035
Willy Tarreau56123282010-08-06 19:06:56 +02003036 return acl_fetch_bytes_in_rate(l4->stkctr2_table, test, l4->stkctr2_entry);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003037}
3038
3039/* set test->i to the bytes rate from clients from the session's source address
3040 * in the table pointed to by expr, over the configured period.
3041 */
3042static int
3043acl_fetch_src_bytes_in_rate(struct proxy *px, struct session *l4, void *l7, int dir,
Willy Tarreau56123282010-08-06 19:06:56 +02003044 struct acl_expr *expr, struct acl_test *test)
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003045{
3046 struct stktable_key *key;
3047
David du Colombier4f92d322011-03-24 11:09:31 +01003048 key = tcp_src_to_stktable_key(l4);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003049 if (!key)
David du Colombier4f92d322011-03-24 11:09:31 +01003050 return 0;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003051
3052 if (expr->arg_len)
3053 px = find_stktable(expr->arg.str);
3054
3055 if (!px)
3056 return 0; /* table not found */
3057
3058 return acl_fetch_bytes_in_rate(&px->table, test, stktable_lookup_key(&px->table, key));
3059}
3060
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003061/* set test->i to the number of kbytes sent to clients matching the stksess entry <ts> */
3062static int
3063acl_fetch_kbytes_out(struct stktable *table, struct acl_test *test, struct stksess *ts)
3064{
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003065 test->flags = ACL_TEST_F_VOL_TEST;
3066 test->i = 0;
3067
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003068 if (ts != NULL) {
3069 void *ptr = stktable_data_ptr(table, ts, STKTABLE_DT_BYTES_OUT_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003070 if (!ptr)
3071 return 0; /* parameter not stored */
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003072 test->i = stktable_data_cast(ptr, bytes_out_cnt) >> 10;
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003073 }
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003074 return 1;
3075}
3076
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003077/* set test->i to the number of kbytes sent to clients according to the session's
Willy Tarreauf059a0f2010-08-03 16:29:52 +02003078 * tracked FE counters.
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003079 */
3080static int
Willy Tarreau56123282010-08-06 19:06:56 +02003081acl_fetch_sc1_kbytes_out(struct proxy *px, struct session *l4, void *l7, int dir,
3082 struct acl_expr *expr, struct acl_test *test)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02003083{
Willy Tarreau56123282010-08-06 19:06:56 +02003084 if (!l4->stkctr1_entry)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02003085 return 0;
3086
Willy Tarreau56123282010-08-06 19:06:56 +02003087 return acl_fetch_kbytes_out(l4->stkctr1_table, test, l4->stkctr1_entry);
Willy Tarreauf059a0f2010-08-03 16:29:52 +02003088}
3089
3090/* set test->i to the number of kbytes sent to clients according to the session's
3091 * tracked BE counters.
3092 */
3093static int
Willy Tarreau56123282010-08-06 19:06:56 +02003094acl_fetch_sc2_kbytes_out(struct proxy *px, struct session *l4, void *l7, int dir,
3095 struct acl_expr *expr, struct acl_test *test)
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003096{
Willy Tarreau56123282010-08-06 19:06:56 +02003097 if (!l4->stkctr2_entry)
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003098 return 0;
3099
Willy Tarreau56123282010-08-06 19:06:56 +02003100 return acl_fetch_kbytes_out(l4->stkctr2_table, test, l4->stkctr2_entry);
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003101}
3102
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003103/* set test->i to the number of kbytes sent to the session's source address in
3104 * the table pointed to by expr.
3105 */
3106static int
3107acl_fetch_src_kbytes_out(struct proxy *px, struct session *l4, void *l7, int dir,
3108 struct acl_expr *expr, struct acl_test *test)
3109{
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003110 struct stktable_key *key;
3111
David du Colombier4f92d322011-03-24 11:09:31 +01003112 key = tcp_src_to_stktable_key(l4);
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003113 if (!key)
David du Colombier4f92d322011-03-24 11:09:31 +01003114 return 0;
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003115
3116 if (expr->arg_len)
3117 px = find_stktable(expr->arg.str);
3118
3119 if (!px)
3120 return 0; /* table not found */
3121
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003122 return acl_fetch_kbytes_out(&px->table, test, stktable_lookup_key(&px->table, key));
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003123}
3124
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003125/* set test->i to the bytes rate to clients in the stksess entry <ts> over the
3126 * configured period.
3127 */
3128static int
3129acl_fetch_bytes_out_rate(struct stktable *table, struct acl_test *test, struct stksess *ts)
3130{
3131 test->flags = ACL_TEST_F_VOL_TEST;
3132 test->i = 0;
3133 if (ts != NULL) {
3134 void *ptr = stktable_data_ptr(table, ts, STKTABLE_DT_BYTES_OUT_RATE);
3135 if (!ptr)
3136 return 0; /* parameter not stored */
3137 test->i = read_freq_ctr_period(&stktable_data_cast(ptr, bytes_out_rate),
3138 table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u);
3139 }
3140 return 1;
3141}
3142
Willy Tarreauf059a0f2010-08-03 16:29:52 +02003143/* set test->i to the bytes rate to clients from the session's tracked FE counters
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003144 * over the configured period.
3145 */
3146static int
Willy Tarreau56123282010-08-06 19:06:56 +02003147acl_fetch_sc1_bytes_out_rate(struct proxy *px, struct session *l4, void *l7, int dir,
3148 struct acl_expr *expr, struct acl_test *test)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02003149{
Willy Tarreau56123282010-08-06 19:06:56 +02003150 if (!l4->stkctr1_entry)
Willy Tarreauf059a0f2010-08-03 16:29:52 +02003151 return 0;
3152
Willy Tarreau56123282010-08-06 19:06:56 +02003153 return acl_fetch_bytes_out_rate(l4->stkctr1_table, test, l4->stkctr1_entry);
Willy Tarreauf059a0f2010-08-03 16:29:52 +02003154}
3155
3156/* set test->i to the bytes rate to clients from the session's tracked BE counters
3157 * over the configured period.
3158 */
3159static int
Willy Tarreau56123282010-08-06 19:06:56 +02003160acl_fetch_sc2_bytes_out_rate(struct proxy *px, struct session *l4, void *l7, int dir,
3161 struct acl_expr *expr, struct acl_test *test)
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003162{
Willy Tarreau56123282010-08-06 19:06:56 +02003163 if (!l4->stkctr2_entry)
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003164 return 0;
3165
Willy Tarreau56123282010-08-06 19:06:56 +02003166 return acl_fetch_bytes_out_rate(l4->stkctr2_table, test, l4->stkctr2_entry);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003167}
3168
3169/* set test->i to the bytes rate to client from the session's source address in
3170 * the table pointed to by expr, over the configured period.
3171 */
3172static int
3173acl_fetch_src_bytes_out_rate(struct proxy *px, struct session *l4, void *l7, int dir,
Willy Tarreau56123282010-08-06 19:06:56 +02003174 struct acl_expr *expr, struct acl_test *test)
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003175{
3176 struct stktable_key *key;
3177
David du Colombier4f92d322011-03-24 11:09:31 +01003178 key = tcp_src_to_stktable_key(l4);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003179 if (!key)
David du Colombier4f92d322011-03-24 11:09:31 +01003180 return 0;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003181
3182 if (expr->arg_len)
3183 px = find_stktable(expr->arg.str);
3184
3185 if (!px)
3186 return 0; /* table not found */
3187
3188 return acl_fetch_bytes_out_rate(&px->table, test, stktable_lookup_key(&px->table, key));
3189}
3190
Willy Tarreauc735a072011-03-29 00:57:02 +02003191/* set test->i to the number of used entries in the table pointed to by expr. */
3192static int
3193acl_fetch_table_cnt(struct proxy *px, struct session *l4, void *l7, int dir,
3194 struct acl_expr *expr, struct acl_test *test)
3195{
3196 if (expr->arg_len)
3197 px = find_stktable(expr->arg.str);
3198
3199 if (!px)
3200 return 0; /* table not found */
3201
3202 test->flags = ACL_TEST_F_VOL_TEST;
3203 test->i = px->table.current;
3204 return 1;
3205}
3206
3207/* set test->i to the number of free entries in the table pointed to by expr. */
3208static int
3209acl_fetch_table_avl(struct proxy *px, struct session *l4, void *l7, int dir,
3210 struct acl_expr *expr, struct acl_test *test)
3211{
3212 if (expr->arg_len)
3213 px = find_stktable(expr->arg.str);
3214
3215 if (!px)
3216 return 0; /* table not found */
3217
3218 test->flags = ACL_TEST_F_VOL_TEST;
3219 test->i = px->table.size - px->table.current;
3220 return 1;
3221}
Willy Tarreau8b22a712010-06-18 17:46:06 +02003222
3223/* Note: must not be declared <const> as its list will be overwritten */
3224static struct acl_kw_list acl_kws = {{ },{
Willy Tarreau56123282010-08-06 19:06:56 +02003225 { "sc1_get_gpc0", acl_parse_int, acl_fetch_sc1_get_gpc0, acl_match_int, ACL_USE_NOTHING },
3226 { "sc2_get_gpc0", acl_parse_int, acl_fetch_sc2_get_gpc0, acl_match_int, ACL_USE_NOTHING },
3227 { "src_get_gpc0", acl_parse_int, acl_fetch_src_get_gpc0, acl_match_int, ACL_USE_TCP4_VOLATILE },
3228 { "sc1_inc_gpc0", acl_parse_int, acl_fetch_sc1_inc_gpc0, acl_match_int, ACL_USE_NOTHING },
3229 { "sc2_inc_gpc0", acl_parse_int, acl_fetch_sc2_inc_gpc0, acl_match_int, ACL_USE_NOTHING },
3230 { "src_inc_gpc0", acl_parse_int, acl_fetch_src_inc_gpc0, acl_match_int, ACL_USE_TCP4_VOLATILE },
3231 { "sc1_conn_cnt", acl_parse_int, acl_fetch_sc1_conn_cnt, acl_match_int, ACL_USE_NOTHING },
3232 { "sc2_conn_cnt", acl_parse_int, acl_fetch_sc2_conn_cnt, acl_match_int, ACL_USE_NOTHING },
3233 { "src_conn_cnt", acl_parse_int, acl_fetch_src_conn_cnt, acl_match_int, ACL_USE_TCP4_VOLATILE },
3234 { "sc1_conn_rate", acl_parse_int, acl_fetch_sc1_conn_rate, acl_match_int, ACL_USE_NOTHING },
3235 { "sc2_conn_rate", acl_parse_int, acl_fetch_sc2_conn_rate, acl_match_int, ACL_USE_NOTHING },
3236 { "src_conn_rate", acl_parse_int, acl_fetch_src_conn_rate, acl_match_int, ACL_USE_TCP4_VOLATILE },
3237 { "src_updt_conn_cnt", acl_parse_int, acl_fetch_src_updt_conn_cnt, acl_match_int, ACL_USE_TCP4_VOLATILE },
3238 { "sc1_conn_cur", acl_parse_int, acl_fetch_sc1_conn_cur, acl_match_int, ACL_USE_NOTHING },
3239 { "sc2_conn_cur", acl_parse_int, acl_fetch_sc2_conn_cur, acl_match_int, ACL_USE_NOTHING },
3240 { "src_conn_cur", acl_parse_int, acl_fetch_src_conn_cur, acl_match_int, ACL_USE_TCP4_VOLATILE },
3241 { "sc1_sess_cnt", acl_parse_int, acl_fetch_sc1_sess_cnt, acl_match_int, ACL_USE_NOTHING },
3242 { "sc2_sess_cnt", acl_parse_int, acl_fetch_sc2_sess_cnt, acl_match_int, ACL_USE_NOTHING },
3243 { "src_sess_cnt", acl_parse_int, acl_fetch_src_sess_cnt, acl_match_int, ACL_USE_TCP4_VOLATILE },
3244 { "sc1_sess_rate", acl_parse_int, acl_fetch_sc1_sess_rate, acl_match_int, ACL_USE_NOTHING },
3245 { "sc2_sess_rate", acl_parse_int, acl_fetch_sc2_sess_rate, acl_match_int, ACL_USE_NOTHING },
3246 { "src_sess_rate", acl_parse_int, acl_fetch_src_sess_rate, acl_match_int, ACL_USE_TCP4_VOLATILE },
3247 { "sc1_http_req_cnt", acl_parse_int, acl_fetch_sc1_http_req_cnt, acl_match_int, ACL_USE_NOTHING },
3248 { "sc2_http_req_cnt", acl_parse_int, acl_fetch_sc2_http_req_cnt, acl_match_int, ACL_USE_NOTHING },
3249 { "src_http_req_cnt", acl_parse_int, acl_fetch_src_http_req_cnt, acl_match_int, ACL_USE_TCP4_VOLATILE },
3250 { "sc1_http_req_rate", acl_parse_int, acl_fetch_sc1_http_req_rate, acl_match_int, ACL_USE_NOTHING },
3251 { "sc2_http_req_rate", acl_parse_int, acl_fetch_sc2_http_req_rate, acl_match_int, ACL_USE_NOTHING },
3252 { "src_http_req_rate", acl_parse_int, acl_fetch_src_http_req_rate, acl_match_int, ACL_USE_TCP4_VOLATILE },
3253 { "sc1_http_err_cnt", acl_parse_int, acl_fetch_sc1_http_err_cnt, acl_match_int, ACL_USE_NOTHING },
3254 { "sc2_http_err_cnt", acl_parse_int, acl_fetch_sc2_http_err_cnt, acl_match_int, ACL_USE_NOTHING },
3255 { "src_http_err_cnt", acl_parse_int, acl_fetch_src_http_err_cnt, acl_match_int, ACL_USE_TCP4_VOLATILE },
3256 { "sc1_http_err_rate", acl_parse_int, acl_fetch_sc1_http_err_rate, acl_match_int, ACL_USE_NOTHING },
3257 { "sc2_http_err_rate", acl_parse_int, acl_fetch_sc2_http_err_rate, acl_match_int, ACL_USE_NOTHING },
3258 { "src_http_err_rate", acl_parse_int, acl_fetch_src_http_err_rate, acl_match_int, ACL_USE_TCP4_VOLATILE },
3259 { "sc1_kbytes_in", acl_parse_int, acl_fetch_sc1_kbytes_in, acl_match_int, ACL_USE_TCP4_VOLATILE },
3260 { "sc2_kbytes_in", acl_parse_int, acl_fetch_sc2_kbytes_in, acl_match_int, ACL_USE_TCP4_VOLATILE },
3261 { "src_kbytes_in", acl_parse_int, acl_fetch_src_kbytes_in, acl_match_int, ACL_USE_TCP4_VOLATILE },
3262 { "sc1_bytes_in_rate", acl_parse_int, acl_fetch_sc1_bytes_in_rate, acl_match_int, ACL_USE_NOTHING },
3263 { "sc2_bytes_in_rate", acl_parse_int, acl_fetch_sc2_bytes_in_rate, acl_match_int, ACL_USE_NOTHING },
3264 { "src_bytes_in_rate", acl_parse_int, acl_fetch_src_bytes_in_rate, acl_match_int, ACL_USE_TCP4_VOLATILE },
3265 { "sc1_kbytes_out", acl_parse_int, acl_fetch_sc1_kbytes_out, acl_match_int, ACL_USE_TCP4_VOLATILE },
3266 { "sc2_kbytes_out", acl_parse_int, acl_fetch_sc2_kbytes_out, acl_match_int, ACL_USE_TCP4_VOLATILE },
3267 { "src_kbytes_out", acl_parse_int, acl_fetch_src_kbytes_out, acl_match_int, ACL_USE_TCP4_VOLATILE },
3268 { "sc1_bytes_out_rate", acl_parse_int, acl_fetch_sc1_bytes_out_rate, acl_match_int, ACL_USE_NOTHING },
3269 { "sc2_bytes_out_rate", acl_parse_int, acl_fetch_sc2_bytes_out_rate, acl_match_int, ACL_USE_NOTHING },
3270 { "src_bytes_out_rate", acl_parse_int, acl_fetch_src_bytes_out_rate, acl_match_int, ACL_USE_TCP4_VOLATILE },
Willy Tarreauc735a072011-03-29 00:57:02 +02003271 { "table_avl", acl_parse_int, acl_fetch_table_avl, acl_match_int, ACL_USE_NOTHING },
3272 { "table_cnt", acl_parse_int, acl_fetch_table_cnt, acl_match_int, ACL_USE_NOTHING },
Willy Tarreau8b22a712010-06-18 17:46:06 +02003273 { NULL, NULL, NULL, NULL },
3274}};
3275
3276
Willy Tarreau56123282010-08-06 19:06:56 +02003277/* Parse a "track-sc[12]" line starting with "track-sc[12]" in args[arg-1].
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02003278 * Returns the number of warnings emitted, or -1 in case of fatal errors. The
3279 * <prm> struct is fed with the table name if any. If unspecified, the caller
3280 * will assume that the current proxy's table is used.
3281 */
3282int parse_track_counters(char **args, int *arg,
3283 int section_type, struct proxy *curpx,
3284 struct track_ctr_prm *prm,
3285 struct proxy *defpx, char *err, int errlen)
3286{
3287 int pattern_type = 0;
Willy Tarreau56123282010-08-06 19:06:56 +02003288 char *kw = args[*arg - 1];
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02003289
Willy Tarreau56123282010-08-06 19:06:56 +02003290 /* parse the arguments of "track-sc[12]" before the condition in the
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02003291 * following form :
Willy Tarreau56123282010-08-06 19:06:56 +02003292 * track-sc[12] src [ table xxx ] [ if|unless ... ]
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02003293 */
3294 while (args[*arg]) {
3295 if (strcmp(args[*arg], "src") == 0) {
3296 prm->type = STKTABLE_TYPE_IP;
3297 pattern_type = 1;
3298 }
3299 else if (strcmp(args[*arg], "table") == 0) {
3300 if (!args[*arg + 1]) {
3301 snprintf(err, errlen,
Willy Tarreau56123282010-08-06 19:06:56 +02003302 "missing table for %s in %s '%s'.",
3303 kw, proxy_type_str(curpx), curpx->id);
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02003304 return -1;
3305 }
3306 /* we copy the table name for now, it will be resolved later */
3307 prm->table.n = strdup(args[*arg + 1]);
3308 (*arg)++;
3309 }
3310 else {
3311 /* unhandled keywords are handled by the caller */
3312 break;
3313 }
3314 (*arg)++;
3315 }
3316
3317 if (!pattern_type) {
3318 snprintf(err, errlen,
Willy Tarreau56123282010-08-06 19:06:56 +02003319 "%s key not specified in %s '%s' (found %s, only 'src' is supported).",
3320 kw, proxy_type_str(curpx), curpx->id, quote_arg(args[*arg]));
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02003321 return -1;
3322 }
3323
3324 return 0;
3325}
3326
Willy Tarreau8b22a712010-06-18 17:46:06 +02003327__attribute__((constructor))
3328static void __session_init(void)
3329{
3330 acl_register_keywords(&acl_kws);
3331}
3332
Willy Tarreaubaaee002006-06-26 02:48:02 +02003333/*
3334 * Local variables:
3335 * c-indent-level: 8
3336 * c-basic-offset: 8
3337 * End:
3338 */