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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 Tarreaud28c3532012-04-19 19:28:33 +02004 * Copyright 2000-2012 Willy Tarreau <w@1wt.eu>
Willy Tarreaubaaee002006-06-26 02:48:02 +02005 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 *
11 */
12
13#include <stdlib.h>
Willy Tarreau81f9aa32010-06-01 17:45:26 +020014#include <unistd.h>
15#include <fcntl.h>
Willy Tarreaue3ba5f02006-06-29 18:54:54 +020016
17#include <common/config.h>
Willy Tarreau9b28e032012-10-12 23:49:43 +020018#include <common/buffer.h>
Willy Tarreau7c669d72008-06-20 15:04:11 +020019#include <common/debug.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020020#include <common/memory.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020021
Willy Tarreaubaaee002006-06-26 02:48:02 +020022#include <types/capture.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010023#include <types/global.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020024
Willy Tarreau1d0dfb12009-07-07 15:10:31 +020025#include <proto/acl.h>
Willy Tarreau61612d42012-04-19 18:42:05 +020026#include <proto/arg.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010027#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020028#include <proto/channel.h>
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +010029#include <proto/checks.h>
Willy Tarreaud2274c62012-07-06 14:29:45 +020030#include <proto/connection.h>
Willy Tarreau5ca791d2009-08-16 19:06:42 +020031#include <proto/dumpstats.h>
Willy Tarreaudd2f85e2012-09-02 22:34:23 +020032#include <proto/fd.h>
Willy Tarreau91c43d72010-06-20 11:19:22 +020033#include <proto/freq_ctr.h>
Willy Tarreau3041b9f2010-10-15 23:25:20 +020034#include <proto/frontend.h>
Willy Tarreau8d5d7f22007-01-21 19:16:41 +010035#include <proto/hdr_idx.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +020036#include <proto/listener.h>
Willy Tarreau332f8bf2007-05-13 21:36:56 +020037#include <proto/log.h>
Willy Tarreaucbaaec42012-09-06 11:32:07 +020038#include <proto/raw_sock.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020039#include <proto/session.h>
Willy Tarreau3eba98a2009-01-25 13:56:13 +010040#include <proto/pipe.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010041#include <proto/proto_http.h>
42#include <proto/proto_tcp.h>
Willy Tarreau1d0dfb12009-07-07 15:10:31 +020043#include <proto/proxy.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020044#include <proto/queue.h>
Willy Tarreau7f062c42009-03-05 18:43:00 +010045#include <proto/server.h>
Willy Tarreaucd3b0942012-04-27 21:52:18 +020046#include <proto/sample.h>
Emeric Brun1d33b292010-01-04 15:47:17 +010047#include <proto/stick_table.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010048#include <proto/stream_interface.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010049#include <proto/task.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020050
Willy Tarreauc6ca1a02007-05-13 19:43:47 +020051struct pool_head *pool2_session;
Willy Tarreauf54f8bd2008-11-23 19:53:55 +010052struct list sessions;
Willy Tarreaubaaee002006-06-26 02:48:02 +020053
Willy Tarreau071e1372012-10-03 01:39:48 +020054static int conn_session_complete(struct connection *conn);
Willy Tarreau9683e9a2012-10-03 21:17:23 +020055static int conn_session_update(struct connection *conn);
Willy Tarreau2542b532012-08-31 16:01:23 +020056static struct task *expire_mini_session(struct task *t);
57int session_complete(struct session *s);
58
Willy Tarreau5e75e272012-10-02 21:21:20 +020059/* data layer callbacks for an embryonic session */
60struct data_cb sess_conn_cb = {
61 .recv = NULL,
62 .send = NULL,
Willy Tarreau9683e9a2012-10-03 21:17:23 +020063 .wake = conn_session_update,
Willy Tarreau071e1372012-10-03 01:39:48 +020064 .init = conn_session_complete,
Willy Tarreau5e75e272012-10-02 21:21:20 +020065};
66
Willy Tarreau2542b532012-08-31 16:01:23 +020067/* This function is called from the protocol layer accept() in order to
68 * instanciate a new embryonic session on behalf of a given listener and
69 * frontend. It returns a positive value upon success, 0 if the connection
70 * can be ignored, or a negative value upon critical failure. The accepted
71 * file descriptor is closed if we return <= 0.
Willy Tarreau81f9aa32010-06-01 17:45:26 +020072 */
73int session_accept(struct listener *l, int cfd, struct sockaddr_storage *addr)
74{
Willy Tarreaub363a1f2013-10-01 10:45:07 +020075 struct connection *cli_conn;
Willy Tarreau81f9aa32010-06-01 17:45:26 +020076 struct proxy *p = l->frontend;
77 struct session *s;
Willy Tarreau81f9aa32010-06-01 17:45:26 +020078 struct task *t;
Willy Tarreauabe8ea52010-11-11 10:56:04 +010079 int ret;
80
81
82 ret = -1; /* assume unrecoverable error by default */
Willy Tarreau81f9aa32010-06-01 17:45:26 +020083
Willy Tarreau32e3c6a2013-10-11 19:34:20 +020084 if (unlikely((cli_conn = conn_new()) == NULL))
Willy Tarreau81f9aa32010-06-01 17:45:26 +020085 goto out_close;
Willy Tarreau81f9aa32010-06-01 17:45:26 +020086
Willy Tarreau32e3c6a2013-10-11 19:34:20 +020087 conn_prepare(cli_conn, l->proto, l->xprt);
Willy Tarreauf2943dc2012-10-26 20:10:28 +020088
Willy Tarreau32e3c6a2013-10-11 19:34:20 +020089 cli_conn->t.sock.fd = cfd;
90 cli_conn->addr.from = *addr;
91 cli_conn->flags |= CO_FL_ADDR_FROM_SET;
92 cli_conn->target = &l->obj_type;
93
94 if (unlikely((s = pool_alloc2(pool2_session)) == NULL))
95 goto out_free_conn;
Willy Tarreauf2943dc2012-10-26 20:10:28 +020096
Willy Tarreau2542b532012-08-31 16:01:23 +020097 /* minimum session initialization required for an embryonic session is
98 * fairly low. We need very little to execute L4 ACLs, then we need a
99 * task to make the client-side connection live on its own.
100 * - flags
101 * - stick-entry tracking
102 */
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200103 s->flags = 0;
104 s->logs.logwait = p->to_log;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200105 s->logs.level = 0;
Willy Tarreaud5ca9ab2013-05-28 17:40:25 +0200106
107 memset(s->stkctr, 0, sizeof(s->stkctr));
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200108
Willy Tarreau2542b532012-08-31 16:01:23 +0200109 s->listener = l;
110 s->fe = p;
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100111
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200112 /* On a mini-session, the connection is directly attached to the
113 * session's target so that we don't need to initialize the stream
114 * interfaces. Another benefit is that it's easy to detect a mini-
115 * session in dumps using this : it's the only one which has a
116 * connection in s->target.
117 */
118 s->target = &cli_conn->obj_type;
119
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200120 s->logs.accept_date = date; /* user-visible date for logging */
121 s->logs.tv_accept = now; /* corrected date for internal use */
Willy Tarreau1f0da242014-01-25 11:01:50 +0100122 s->uniq_id = global.req_count++;
Willy Tarreau2542b532012-08-31 16:01:23 +0200123 p->feconn++;
124 /* This session was accepted, count it now */
125 if (p->feconn > p->fe_counters.conn_max)
126 p->fe_counters.conn_max = p->feconn;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200127
Willy Tarreau2542b532012-08-31 16:01:23 +0200128 proxy_inc_fe_conn_ctr(l, p);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200129
Willy Tarreau59e3ff42013-12-16 02:16:50 +0100130 /* Add the minimum callbacks to prepare the connection's control layer.
131 * We need this so that we can safely execute the ACLs used by the
132 * "tcp-request connection" ruleset. We also carefully attach the
133 * connection to the stream interface without initializing the rest,
134 * so that ACLs can use si[0]->end.
135 */
136 si_attach_conn(&s->si[0], cli_conn);
137 conn_attach(cli_conn, s, &sess_conn_cb);
138 conn_ctrl_init(cli_conn);
139
Willy Tarreau2cff2f72013-12-16 10:12:54 +0100140 /* now evaluate the tcp-request layer4 rules. Since we expect to be able
141 * to abort right here as soon as possible, we check the rules before
142 * even initializing the stream interfaces.
143 */
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200144 if ((l->options & LI_O_TCP_RULES) && !tcp_exec_req_rules(s)) {
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200145 /* let's do a no-linger now to close with a single RST. */
146 setsockopt(cfd, SOL_SOCKET, SO_LINGER, (struct linger *) &nolinger, sizeof(struct linger));
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100147 ret = 0; /* successful termination */
Willy Tarreau2542b532012-08-31 16:01:23 +0200148 goto out_free_session;
149 }
150
Willy Tarreau1bc4aab2012-10-08 20:11:03 +0200151#ifndef USE_ACCEPT4
152 /* Adjust some socket options if the connection was accepted by a plain
153 * accept() syscall.
154 */
Willy Tarreau82569f92012-09-27 23:48:56 +0200155 if (unlikely(fcntl(cfd, F_SETFL, O_NONBLOCK) == -1))
156 goto out_free_session;
Willy Tarreau1bc4aab2012-10-08 20:11:03 +0200157#endif
Willy Tarreau82569f92012-09-27 23:48:56 +0200158
159 /* monitor-net and health mode are processed immediately after TCP
160 * connection rules. This way it's possible to block them, but they
161 * never use the lower data layers, they send directly over the socket,
162 * as they were designed for. We first flush the socket receive buffer
163 * in order to avoid emission of an RST by the system. We ignore any
164 * error.
165 */
166 if (unlikely((p->mode == PR_MODE_HEALTH) ||
167 ((l->options & LI_O_CHK_MONNET) &&
168 addr->ss_family == AF_INET &&
169 (((struct sockaddr_in *)addr)->sin_addr.s_addr & p->mon_mask.s_addr) == p->mon_net.s_addr))) {
170 /* we have 4 possibilities here :
171 * - HTTP mode, from monitoring address => send "HTTP/1.0 200 OK"
172 * - HEALTH mode with HTTP check => send "HTTP/1.0 200 OK"
173 * - HEALTH mode without HTTP check => just send "OK"
174 * - TCP mode from monitoring address => just close
175 */
Willy Tarreau2b57cb82013-06-10 19:56:38 +0200176 if (l->proto->drain)
177 l->proto->drain(cfd);
Willy Tarreau82569f92012-09-27 23:48:56 +0200178 if (p->mode == PR_MODE_HTTP ||
179 (p->mode == PR_MODE_HEALTH && (p->options2 & PR_O2_CHK_ANY) == PR_O2_HTTP_CHK))
180 send(cfd, "HTTP/1.0 200 OK\r\n\r\n", 19, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_MORE);
181 else if (p->mode == PR_MODE_HEALTH)
182 send(cfd, "OK\n", 3, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_MORE);
183 ret = 0;
184 goto out_free_session;
185 }
186
Willy Tarreau22cda212012-08-31 17:43:29 +0200187 /* wait for a PROXY protocol header */
188 if (l->options & LI_O_ACC_PROXY) {
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200189 cli_conn->flags |= CO_FL_ACCEPT_PROXY;
190 conn_sock_want_recv(cli_conn);
Willy Tarreau22cda212012-08-31 17:43:29 +0200191 }
192
Willy Tarreau2542b532012-08-31 16:01:23 +0200193 if (unlikely((t = task_new()) == NULL))
194 goto out_free_session;
195
196 t->context = s;
197 t->nice = l->nice;
198 s->task = t;
199
Willy Tarreau59e3ff42013-12-16 02:16:50 +0100200 /* Finish setting the callbacks. Right now the transport layer is present
Willy Tarreauf7bc57c2012-10-03 00:19:48 +0200201 * but not initialized. Also note we need to be careful as the stream
202 * int is not initialized yet.
Willy Tarreau2542b532012-08-31 16:01:23 +0200203 */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200204 conn_data_want_recv(cli_conn);
205 if (conn_xprt_init(cli_conn) < 0)
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100206 goto out_free_task;
Willy Tarreau2542b532012-08-31 16:01:23 +0200207
208 /* OK, now either we have a pending handshake to execute with and
209 * then we must return to the I/O layer, or we can proceed with the
210 * end of the session initialization. In case of handshake, we also
211 * set the I/O timeout to the frontend's client timeout.
212 */
213
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200214 if (cli_conn->flags & CO_FL_HANDSHAKE) {
Willy Tarreau2542b532012-08-31 16:01:23 +0200215 t->process = expire_mini_session;
216 t->expire = tick_add_ifset(now_ms, p->timeout.client);
217 task_queue(t);
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200218 cli_conn->flags |= CO_FL_INIT_DATA | CO_FL_WAKE_DATA;
Willy Tarreau2542b532012-08-31 16:01:23 +0200219 return 1;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200220 }
221
Willy Tarreau815f5ec2012-11-06 00:14:25 +0100222 /* OK let's complete session initialization since there is no handshake */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200223 cli_conn->flags |= CO_FL_CONNECTED;
Willy Tarreau2542b532012-08-31 16:01:23 +0200224 ret = session_complete(s);
225 if (ret > 0)
226 return ret;
227
228 /* Error unrolling */
229 out_free_task:
230 task_free(t);
231 out_free_session:
232 p->feconn--;
Willy Tarreaue9101692014-01-28 22:48:24 +0100233 session_store_counters(s);
Willy Tarreau2542b532012-08-31 16:01:23 +0200234 pool_free2(pool2_session, s);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200235 out_free_conn:
236 cli_conn->flags &= ~CO_FL_XPRT_TRACKED;
237 conn_xprt_close(cli_conn);
238 conn_free(cli_conn);
Willy Tarreau2542b532012-08-31 16:01:23 +0200239 out_close:
Willy Tarreauf7bc57c2012-10-03 00:19:48 +0200240 if (ret < 0 && l->xprt == &raw_sock && p->mode == PR_MODE_HTTP) {
Willy Tarreau2542b532012-08-31 16:01:23 +0200241 /* critical error, no more memory, try to emit a 500 response */
Willy Tarreau05bf5e12013-10-20 23:10:28 +0200242 struct chunk *err_msg = &p->errmsg[HTTP_ERR_500];
243 if (!err_msg->str)
244 err_msg = &http_err_chunks[HTTP_ERR_500];
Willy Tarreau2542b532012-08-31 16:01:23 +0200245 send(cfd, err_msg->str, err_msg->len, MSG_DONTWAIT|MSG_NOSIGNAL);
246 }
247
248 if (fdtab[cfd].owner)
249 fd_delete(cfd);
250 else
251 close(cfd);
252 return ret;
253}
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100254
Willy Tarreau0af29122012-12-03 15:35:00 +0100255
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200256/* prepare the trash with a log prefix for session <s>. It only works with
257 * embryonic sessions based on a real connection.
258 */
Willy Tarreau0af29122012-12-03 15:35:00 +0100259static void prepare_mini_sess_log_prefix(struct session *s)
260{
261 struct tm tm;
262 char pn[INET6_ADDRSTRLEN];
263 int ret;
264 char *end;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200265 struct connection *cli_conn = __objt_conn(s->target);
Willy Tarreau0af29122012-12-03 15:35:00 +0100266
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200267 ret = addr_to_str(&cli_conn->addr.from, pn, sizeof(pn));
Willy Tarreau0af29122012-12-03 15:35:00 +0100268 if (ret <= 0)
269 chunk_printf(&trash, "unknown [");
270 else if (ret == AF_UNIX)
271 chunk_printf(&trash, "%s:%d [", pn, s->listener->luid);
272 else
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200273 chunk_printf(&trash, "%s:%d [", pn, get_host_port(&cli_conn->addr.from));
Willy Tarreau0af29122012-12-03 15:35:00 +0100274
275 get_localtime(s->logs.accept_date.tv_sec, &tm);
276 end = date2str_log(trash.str + trash.len, &tm, &(s->logs.accept_date), trash.size - trash.len);
277 trash.len = end - trash.str;
278 if (s->listener->name)
279 chunk_appendf(&trash, "] %s/%s", s->fe->id, s->listener->name);
280 else
281 chunk_appendf(&trash, "] %s/%d", s->fe->id, s->listener->luid);
282}
283
Willy Tarreau2542b532012-08-31 16:01:23 +0200284/* This function kills an existing embryonic session. It stops the connection's
Willy Tarreauf7bc57c2012-10-03 00:19:48 +0200285 * transport layer, releases assigned resources, resumes the listener if it was
Willy Tarreau2542b532012-08-31 16:01:23 +0200286 * disabled and finally kills the file descriptor.
287 */
288static void kill_mini_session(struct session *s)
289{
Willy Tarreau0af29122012-12-03 15:35:00 +0100290 int level = LOG_INFO;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200291 struct connection *conn = __objt_conn(s->target);
Willy Tarreau0af29122012-12-03 15:35:00 +0100292 unsigned int log = s->logs.logwait;
293 const char *err_msg;
294
295 if (s->fe->options2 & PR_O2_LOGERRORS)
296 level = LOG_ERR;
297
298 if (log && (s->fe->options & PR_O_NULLNOLOG)) {
299 /* with "option dontlognull", we don't log connections with no transfer */
Willy Tarreau8e3bf692012-12-03 15:41:18 +0100300 if (!conn->err_code ||
Willy Tarreau20879a02012-12-03 16:32:10 +0100301 conn->err_code == CO_ER_PRX_EMPTY || conn->err_code == CO_ER_PRX_ABORT ||
302 conn->err_code == CO_ER_SSL_EMPTY || conn->err_code == CO_ER_SSL_ABORT)
Willy Tarreau0af29122012-12-03 15:35:00 +0100303 log = 0;
304 }
305
306 if (log) {
307 if (!conn->err_code && (s->task->state & TASK_WOKEN_TIMER)) {
308 if (conn->flags & CO_FL_ACCEPT_PROXY)
309 conn->err_code = CO_ER_PRX_TIMEOUT;
310 else if (conn->flags & CO_FL_SSL_WAIT_HS)
311 conn->err_code = CO_ER_SSL_TIMEOUT;
312 }
313
314 prepare_mini_sess_log_prefix(s);
315 err_msg = conn_err_code_str(conn);
316 if (err_msg)
317 send_log(s->fe, level, "%s: %s\n", trash.str, err_msg);
318 else
319 send_log(s->fe, level, "%s: unknown connection error (code=%d flags=%08x)\n",
320 trash.str, conn->err_code, conn->flags);
321 }
322
Willy Tarreau2542b532012-08-31 16:01:23 +0200323 /* kill the connection now */
Willy Tarreauf79c8172013-10-21 16:30:56 +0200324 conn_force_close(conn);
Willy Tarreau2542b532012-08-31 16:01:23 +0200325
326 s->fe->feconn--;
Willy Tarreau7af7d592013-07-01 18:07:03 +0200327 session_store_counters(s);
Willy Tarreau2542b532012-08-31 16:01:23 +0200328
329 if (!(s->listener->options & LI_O_UNLIMITED))
330 actconn--;
331 jobs--;
332 s->listener->nbconn--;
333 if (s->listener->state == LI_FULL)
334 resume_listener(s->listener);
335
336 /* Dequeues all of the listeners waiting for a resource */
337 if (!LIST_ISEMPTY(&global_listener_queue))
338 dequeue_all_listeners(&global_listener_queue);
339
340 if (!LIST_ISEMPTY(&s->fe->listener_queue) &&
341 (!s->fe->fe_sps_lim || freq_ctr_remain(&s->fe->fe_sess_per_sec, s->fe->fe_sps_lim, 0) > 0))
342 dequeue_all_listeners(&s->fe->listener_queue);
343
344 task_delete(s->task);
345 task_free(s->task);
346
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200347 pool_free2(pool2_connection, conn);
Willy Tarreau2542b532012-08-31 16:01:23 +0200348 pool_free2(pool2_session, s);
349}
350
Willy Tarreau22cda212012-08-31 17:43:29 +0200351/* Finish initializing a session from a connection, or kills it if the
352 * connection shows and error. Returns <0 if the connection was killed.
Willy Tarreau2542b532012-08-31 16:01:23 +0200353 */
Willy Tarreau071e1372012-10-03 01:39:48 +0200354static int conn_session_complete(struct connection *conn)
Willy Tarreau2542b532012-08-31 16:01:23 +0200355{
Willy Tarreau5e75e272012-10-02 21:21:20 +0200356 struct session *s = conn->owner;
Willy Tarreau2542b532012-08-31 16:01:23 +0200357
Willy Tarreau22cda212012-08-31 17:43:29 +0200358 if (!(conn->flags & CO_FL_ERROR) && (session_complete(s) > 0)) {
Willy Tarreau071e1372012-10-03 01:39:48 +0200359 conn->flags &= ~CO_FL_INIT_DATA;
Willy Tarreau2542b532012-08-31 16:01:23 +0200360 return 0;
361 }
362
363 /* kill the connection now */
364 kill_mini_session(s);
365 return -1;
366}
367
Willy Tarreau9683e9a2012-10-03 21:17:23 +0200368/* Update an embryonic session status. The connection is killed in case of
369 * error, and <0 will be returned. Otherwise it does nothing.
370 */
371static int conn_session_update(struct connection *conn)
372{
373 if (conn->flags & CO_FL_ERROR) {
374 kill_mini_session(conn->owner);
375 return -1;
376 }
377 return 0;
378}
379
Willy Tarreau2542b532012-08-31 16:01:23 +0200380/* Manages embryonic sessions timeout. It is only called when the timeout
381 * strikes and performs the required cleanup.
382 */
383static struct task *expire_mini_session(struct task *t)
384{
385 struct session *s = t->context;
386
387 if (!(t->state & TASK_WOKEN_TIMER))
388 return t;
389
390 kill_mini_session(s);
391 return NULL;
392}
393
394/* This function is called from the I/O handler which detects the end of
395 * handshake, in order to complete initialization of a valid session. It must
396 * be called with an embryonic session. It returns a positive value upon
397 * success, 0 if the connection can be ignored, or a negative value upon
398 * critical failure. The accepted file descriptor is closed if we return <= 0.
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200399 * The client-side end point is assumed to be a connection.
Willy Tarreau2542b532012-08-31 16:01:23 +0200400 */
401int session_complete(struct session *s)
402{
403 struct listener *l = s->listener;
404 struct proxy *p = s->fe;
405 struct http_txn *txn;
406 struct task *t = s->task;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200407 struct connection *conn = __objt_conn(s->target);
Willy Tarreau2542b532012-08-31 16:01:23 +0200408 int ret;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100409 int i;
Willy Tarreau2542b532012-08-31 16:01:23 +0200410
411 ret = -1; /* assume unrecoverable error by default */
412
413 /* OK, we're keeping the session, so let's properly initialize the session */
414 LIST_ADDQ(&sessions, &s->list);
415 LIST_INIT(&s->back_refs);
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200416
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200417 s->flags |= SN_INITIALIZED;
Willy Tarreau2542b532012-08-31 16:01:23 +0200418 s->unique_id = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200419
420 t->process = l->handler;
421 t->context = s;
422 t->expire = TICK_ETERNITY;
423
424 /* Note: initially, the session's backend points to the frontend.
425 * This changes later when switching rules are executed or
426 * when the default backend is assigned.
427 */
428 s->be = s->fe;
429 s->req = s->rep = NULL; /* will be allocated later */
William Lallemand82fe75c2012-10-23 10:25:10 +0200430 s->comp_algo = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200431
432 /* Let's count a session now */
Willy Tarreaub36b4242010-06-04 20:59:39 +0200433 proxy_inc_fe_sess_ctr(l, p);
Willy Tarreau91c43d72010-06-20 11:19:22 +0200434
Willy Tarreaub4c84932013-07-23 19:15:30 +0200435 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200436 void *ptr;
437
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100438 if (!stkctr_entry(&s->stkctr[i]))
Willy Tarreau20d46a52012-12-09 15:55:40 +0100439 continue;
440
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100441 ptr = stktable_data_ptr(s->stkctr[i].table, stkctr_entry(&s->stkctr[i]), STKTABLE_DT_SESS_CNT);
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200442 if (ptr)
443 stktable_data_cast(ptr, sess_cnt)++;
444
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100445 ptr = stktable_data_ptr(s->stkctr[i].table, stkctr_entry(&s->stkctr[i]), STKTABLE_DT_SESS_RATE);
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200446 if (ptr)
447 update_freq_ctr_period(&stktable_data_cast(ptr, sess_rate),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100448 s->stkctr[i].table->data_arg[STKTABLE_DT_SESS_RATE].u, 1);
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200449 }
450
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200451 /* this part should be common with other protocols */
452 si_reset(&s->si[0], t);
453 si_set_state(&s->si[0], SI_ST_EST);
454
455 /* attach the incoming connection to the stream interface now */
456 si_attach_conn(&s->si[0], conn);
457
458 if (likely(s->fe->options2 & PR_O2_INDEPSTR))
459 s->si[0].flags |= SI_FL_INDEP_STR;
460
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200461 /* pre-initialize the other side's stream interface to an INIT state. The
462 * callbacks will be initialized before attempting to connect.
463 */
Willy Tarreau3ed35ef2013-10-24 11:51:38 +0200464 si_reset(&s->si[1], t);
Willy Tarreau2a6e8802013-10-24 15:50:53 +0200465 si_detach(&s->si[1]);
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200466
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200467 if (likely(s->fe->options2 & PR_O2_INDEPSTR))
468 s->si[1].flags |= SI_FL_INDEP_STR;
469
Willy Tarreau9bd0d742011-07-20 00:17:39 +0200470 session_init_srv_conn(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100471 s->target = NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200472 s->pend_pos = NULL;
473
474 /* init store persistence */
475 s->store_count = 0;
476
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200477 if (unlikely((s->req = pool_alloc2(pool2_channel)) == NULL))
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200478 goto out_free_task; /* no memory */
479
Willy Tarreau9b28e032012-10-12 23:49:43 +0200480 if (unlikely((s->req->buf = pool_alloc2(pool2_buffer)) == NULL))
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200481 goto out_free_req; /* no memory */
482
Willy Tarreau9b28e032012-10-12 23:49:43 +0200483 if (unlikely((s->rep = pool_alloc2(pool2_channel)) == NULL))
484 goto out_free_req_buf; /* no memory */
485
486 if (unlikely((s->rep->buf = pool_alloc2(pool2_buffer)) == NULL))
487 goto out_free_rep; /* no memory */
488
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200489 /* initialize the request buffer */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200490 s->req->buf->size = global.tune.bufsize;
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200491 channel_init(s->req);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200492 s->req->prod = &s->si[0];
493 s->req->cons = &s->si[1];
494 s->si[0].ib = s->si[1].ob = s->req;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200495 s->req->flags |= CF_READ_ATTACHED; /* the producer is already connected */
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200496
497 /* activate default analysers enabled for this listener */
498 s->req->analysers = l->analysers;
499
500 s->req->wto = TICK_ETERNITY;
501 s->req->rto = TICK_ETERNITY;
502 s->req->rex = TICK_ETERNITY;
503 s->req->wex = TICK_ETERNITY;
504 s->req->analyse_exp = TICK_ETERNITY;
505
506 /* initialize response buffer */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200507 s->rep->buf->size = global.tune.bufsize;
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200508 channel_init(s->rep);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200509 s->rep->prod = &s->si[1];
510 s->rep->cons = &s->si[0];
511 s->si[0].ob = s->si[1].ib = s->rep;
512 s->rep->analysers = 0;
513
Willy Tarreau96e31212011-05-30 18:10:30 +0200514 if (s->fe->options2 & PR_O2_NODELAY) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200515 s->req->flags |= CF_NEVER_WAIT;
516 s->rep->flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200517 }
518
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200519 s->rep->rto = TICK_ETERNITY;
520 s->rep->wto = TICK_ETERNITY;
521 s->rep->rex = TICK_ETERNITY;
522 s->rep->wex = TICK_ETERNITY;
523 s->rep->analyse_exp = TICK_ETERNITY;
524
Willy Tarreau62f791e2012-03-09 11:32:30 +0100525 txn = &s->txn;
526 /* Those variables will be checked and freed if non-NULL in
527 * session.c:session_free(). It is important that they are
528 * properly initialized.
529 */
530 txn->sessid = NULL;
531 txn->srv_cookie = NULL;
532 txn->cli_cookie = NULL;
533 txn->uri = NULL;
534 txn->req.cap = NULL;
535 txn->rsp.cap = NULL;
536 txn->hdr_idx.v = NULL;
537 txn->hdr_idx.size = txn->hdr_idx.used = 0;
Willy Tarreau068621e2013-12-23 15:11:25 +0100538 txn->flags = 0;
Willy Tarreau62f791e2012-03-09 11:32:30 +0100539 txn->req.flags = 0;
540 txn->rsp.flags = 0;
541 /* the HTTP messages need to know what buffer they're associated with */
Willy Tarreau394db372012-10-12 22:40:39 +0200542 txn->req.chn = s->req;
543 txn->rsp.chn = s->rep;
Willy Tarreau62f791e2012-03-09 11:32:30 +0100544
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200545 /* finish initialization of the accepted file descriptor */
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200546 conn_data_want_recv(conn);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200547
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100548 if (p->accept && (ret = p->accept(s)) <= 0) {
549 /* Either we had an unrecoverable error (<0) or work is
550 * finished (=0, eg: monitoring), in both situations,
551 * we can release everything and close.
552 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200553 goto out_free_rep_buf;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200554 }
555
Willy Tarreau93dbc2b2012-10-12 18:01:49 +0200556 /* if logs require transport layer information, note it on the connection */
557 if (s->logs.logwait & LW_XPRT)
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200558 conn->flags |= CO_FL_XPRT_TRACKED;
Willy Tarreau93dbc2b2012-10-12 18:01:49 +0200559
Willy Tarreau2542b532012-08-31 16:01:23 +0200560 /* we want the connection handler to notify the stream interface about updates. */
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200561 conn->flags |= CO_FL_WAKE_DATA;
Willy Tarreau2542b532012-08-31 16:01:23 +0200562
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200563 /* it is important not to call the wakeup function directly but to
564 * pass through task_wakeup(), because this one knows how to apply
565 * priorities to tasks.
566 */
567 task_wakeup(t, TASK_WOKEN_INIT);
568 return 1;
569
570 /* Error unrolling */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200571 out_free_rep_buf:
572 pool_free2(pool2_buffer, s->rep->buf);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200573 out_free_rep:
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200574 pool_free2(pool2_channel, s->rep);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200575 out_free_req_buf:
576 pool_free2(pool2_buffer, s->req->buf);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200577 out_free_req:
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200578 pool_free2(pool2_channel, s->req);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200579 out_free_task:
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100580 return ret;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200581}
582
Willy Tarreaubaaee002006-06-26 02:48:02 +0200583/*
584 * frees the context associated to a session. It must have been removed first.
585 */
Simon Hormandec5be42011-06-08 09:19:07 +0900586static void session_free(struct session *s)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200587{
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100588 struct http_txn *txn = &s->txn;
Willy Tarreau632f5a72007-07-11 10:42:35 +0200589 struct proxy *fe = s->fe;
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100590 struct bref *bref, *back;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200591 struct connection *cli_conn = objt_conn(s->si[0].end);
Willy Tarreaua4cda672010-06-06 18:28:49 +0200592 int i;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100593
Willy Tarreaubaaee002006-06-26 02:48:02 +0200594 if (s->pend_pos)
595 pendconn_free(s->pend_pos);
Willy Tarreau922a8062008-12-04 09:33:58 +0100596
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100597 if (objt_server(s->target)) { /* there may be requests left pending in queue */
Willy Tarreau1e62de62008-11-11 20:20:02 +0100598 if (s->flags & SN_CURR_SESS) {
599 s->flags &= ~SN_CURR_SESS;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100600 objt_server(s->target)->cur_sess--;
Willy Tarreau1e62de62008-11-11 20:20:02 +0100601 }
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100602 if (may_dequeue_tasks(objt_server(s->target), s->be))
603 process_srv_queue(objt_server(s->target));
Willy Tarreau1e62de62008-11-11 20:20:02 +0100604 }
Willy Tarreau922a8062008-12-04 09:33:58 +0100605
Willy Tarreau7c669d72008-06-20 15:04:11 +0200606 if (unlikely(s->srv_conn)) {
607 /* the session still has a reserved slot on a server, but
608 * it should normally be only the same as the one above,
609 * so this should not happen in fact.
610 */
611 sess_change_server(s, NULL);
612 }
613
Willy Tarreau543db622012-11-15 16:41:22 +0100614 if (s->flags & SN_COMP_READY)
William Lallemand1c2d6222012-10-30 15:52:53 +0100615 s->comp_algo->end(&s->comp_ctx);
Willy Tarreau543db622012-11-15 16:41:22 +0100616 s->comp_algo = NULL;
617 s->flags &= ~SN_COMP_READY;
William Lallemand82fe75c2012-10-23 10:25:10 +0200618
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100619 if (s->req->pipe)
620 put_pipe(s->req->pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100621
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100622 if (s->rep->pipe)
623 put_pipe(s->rep->pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100624
Willy Tarreau9b28e032012-10-12 23:49:43 +0200625 pool_free2(pool2_buffer, s->req->buf);
626 pool_free2(pool2_buffer, s->rep->buf);
627
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200628 pool_free2(pool2_channel, s->req);
629 pool_free2(pool2_channel, s->rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200630
Willy Tarreau46023632010-01-07 22:51:47 +0100631 http_end_txn(s);
632
Willy Tarreau1e954912012-10-12 17:50:05 +0200633 /* ensure the client-side transport layer is destroyed */
Willy Tarreauf79c8172013-10-21 16:30:56 +0200634 if (cli_conn)
635 conn_force_close(cli_conn);
Willy Tarreau1e954912012-10-12 17:50:05 +0200636
Willy Tarreaua4cda672010-06-06 18:28:49 +0200637 for (i = 0; i < s->store_count; i++) {
638 if (!s->store[i].ts)
639 continue;
640 stksess_free(s->store[i].table, s->store[i].ts);
641 s->store[i].ts = NULL;
642 }
643
Willy Tarreau34eb6712011-10-24 18:15:04 +0200644 pool_free2(pool2_hdr_idx, txn->hdr_idx.v);
Willy Tarreau92fb9832007-10-16 17:34:28 +0200645 if (fe) {
Willy Tarreau46023632010-01-07 22:51:47 +0100646 pool_free2(fe->rsp_cap_pool, txn->rsp.cap);
647 pool_free2(fe->req_cap_pool, txn->req.cap);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200648 }
Willy Tarreau0937bc42009-12-22 15:03:09 +0100649
Willy Tarreau7af7d592013-07-01 18:07:03 +0200650 session_store_counters(s);
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +0200651
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100652 list_for_each_entry_safe(bref, back, &s->back_refs, users) {
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100653 /* we have to unlink all watchers. We must not relink them if
654 * this session was the last one in the list.
655 */
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100656 LIST_DEL(&bref->users);
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100657 LIST_INIT(&bref->users);
658 if (s->list.n != &sessions)
659 LIST_ADDQ(&LIST_ELEM(s->list.n, struct session *, list)->back_refs, &bref->users);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100660 bref->ref = s->list.n;
661 }
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100662 LIST_DEL(&s->list);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200663 si_release_endpoint(&s->si[1]);
664 si_release_endpoint(&s->si[0]);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200665 pool_free2(pool2_session, s);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200666
667 /* We may want to free the maximum amount of pools if the proxy is stopping */
Willy Tarreau92fb9832007-10-16 17:34:28 +0200668 if (fe && unlikely(fe->state == PR_STSTOPPED)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200669 pool_flush2(pool2_buffer);
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200670 pool_flush2(pool2_channel);
Willy Tarreau34eb6712011-10-24 18:15:04 +0200671 pool_flush2(pool2_hdr_idx);
Willy Tarreau48d63db2008-08-03 17:41:33 +0200672 pool_flush2(pool2_requri);
673 pool_flush2(pool2_capture);
674 pool_flush2(pool2_session);
675 pool_flush2(fe->req_cap_pool);
676 pool_flush2(fe->rsp_cap_pool);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200677 }
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200678}
679
680
681/* perform minimal intializations, report 0 in case of error, 1 if OK. */
682int init_session()
683{
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100684 LIST_INIT(&sessions);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200685 pool2_session = create_pool("session", sizeof(struct session), MEM_F_SHARED);
686 return pool2_session != NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200687}
688
Willy Tarreau30e71012007-11-26 20:15:35 +0100689void session_process_counters(struct session *s)
690{
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100691 unsigned long long bytes;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100692 void *ptr;
693 int i;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100694
Willy Tarreau30e71012007-11-26 20:15:35 +0100695 if (s->req) {
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100696 bytes = s->req->total - s->logs.bytes_in;
Willy Tarreau30e71012007-11-26 20:15:35 +0100697 s->logs.bytes_in = s->req->total;
698 if (bytes) {
Willy Tarreau20d46a52012-12-09 15:55:40 +0100699 s->fe->fe_counters.bytes_in += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100700
Willy Tarreau20d46a52012-12-09 15:55:40 +0100701 s->be->be_counters.bytes_in += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100702
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100703 if (objt_server(s->target))
Willy Tarreau20d46a52012-12-09 15:55:40 +0100704 objt_server(s->target)->counters.bytes_in += bytes;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200705
706 if (s->listener->counters)
Willy Tarreau20d46a52012-12-09 15:55:40 +0100707 s->listener->counters->bytes_in += bytes;
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200708
Willy Tarreaub4c84932013-07-23 19:15:30 +0200709 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100710 if (!stkctr_entry(&s->stkctr[i]))
Willy Tarreau20d46a52012-12-09 15:55:40 +0100711 continue;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200712
Willy Tarreau20d46a52012-12-09 15:55:40 +0100713 ptr = stktable_data_ptr(s->stkctr[i].table,
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100714 stkctr_entry(&s->stkctr[i]),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100715 STKTABLE_DT_BYTES_IN_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200716 if (ptr)
717 stktable_data_cast(ptr, bytes_in_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200718
Willy Tarreau20d46a52012-12-09 15:55:40 +0100719 ptr = stktable_data_ptr(s->stkctr[i].table,
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100720 stkctr_entry(&s->stkctr[i]),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100721 STKTABLE_DT_BYTES_IN_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200722 if (ptr)
723 update_freq_ctr_period(&stktable_data_cast(ptr, bytes_in_rate),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100724 s->stkctr[i].table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200725 }
Willy Tarreau30e71012007-11-26 20:15:35 +0100726 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100727 }
728
Willy Tarreau30e71012007-11-26 20:15:35 +0100729 if (s->rep) {
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100730 bytes = s->rep->total - s->logs.bytes_out;
Willy Tarreau30e71012007-11-26 20:15:35 +0100731 s->logs.bytes_out = s->rep->total;
732 if (bytes) {
Willy Tarreau20d46a52012-12-09 15:55:40 +0100733 s->fe->fe_counters.bytes_out += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100734
Willy Tarreau20d46a52012-12-09 15:55:40 +0100735 s->be->be_counters.bytes_out += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100736
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100737 if (objt_server(s->target))
Willy Tarreau20d46a52012-12-09 15:55:40 +0100738 objt_server(s->target)->counters.bytes_out += bytes;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200739
740 if (s->listener->counters)
Willy Tarreau20d46a52012-12-09 15:55:40 +0100741 s->listener->counters->bytes_out += bytes;
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200742
Willy Tarreaub4c84932013-07-23 19:15:30 +0200743 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100744 if (!stkctr_entry(&s->stkctr[i]))
Willy Tarreau20d46a52012-12-09 15:55:40 +0100745 continue;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200746
Willy Tarreau20d46a52012-12-09 15:55:40 +0100747 ptr = stktable_data_ptr(s->stkctr[i].table,
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100748 stkctr_entry(&s->stkctr[i]),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100749 STKTABLE_DT_BYTES_OUT_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200750 if (ptr)
751 stktable_data_cast(ptr, bytes_out_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200752
Willy Tarreau20d46a52012-12-09 15:55:40 +0100753 ptr = stktable_data_ptr(s->stkctr[i].table,
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100754 stkctr_entry(&s->stkctr[i]),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100755 STKTABLE_DT_BYTES_OUT_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200756 if (ptr)
757 update_freq_ctr_period(&stktable_data_cast(ptr, bytes_out_rate),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100758 s->stkctr[i].table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200759 }
Willy Tarreau30e71012007-11-26 20:15:35 +0100760 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100761 }
762}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200763
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100764/* This function is called with (si->state == SI_ST_CON) meaning that a
765 * connection was attempted and that the file descriptor is already allocated.
766 * We must check for establishment, error and abort. Possible output states
767 * are SI_ST_EST (established), SI_ST_CER (error), SI_ST_DIS (abort), and
768 * SI_ST_CON (no change). The function returns 0 if it switches to SI_ST_CER,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200769 * otherwise 1. This only works with connection-based sessions.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100770 */
Simon Hormandec5be42011-06-08 09:19:07 +0900771static int sess_update_st_con_tcp(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100772{
Willy Tarreau7421efb2012-07-02 15:11:27 +0200773 struct channel *req = si->ob;
774 struct channel *rep = si->ib;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200775 struct connection *srv_conn = __objt_conn(si->end);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100776
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100777 /* If we got an error, or if nothing happened and the connection timed
778 * out, we must give up. The CER state handler will take care of retry
779 * attempts and error reports.
780 */
781 if (unlikely(si->flags & (SI_FL_EXP|SI_FL_ERR))) {
Willy Tarreaue3224e82012-10-29 22:41:31 +0100782 if (unlikely(si->ob->flags & CF_WRITE_PARTIAL)) {
783 /* Some data were sent past the connection establishment,
784 * so we need to pretend we're established to log correctly
785 * and let later states handle the failure.
786 */
Willy Tarreaue3224e82012-10-29 22:41:31 +0100787 si->state = SI_ST_EST;
788 si->err_type = SI_ET_DATA_ERR;
789 si->ib->flags |= CF_READ_ERROR | CF_WRITE_ERROR;
Willy Tarreaue3224e82012-10-29 22:41:31 +0100790 return 1;
791 }
Willy Tarreau127334e2009-03-28 10:47:26 +0100792 si->exp = TICK_ETERNITY;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100793 si->state = SI_ST_CER;
Willy Tarreau0ede5a32012-12-08 08:44:02 +0100794
Willy Tarreauf79c8172013-10-21 16:30:56 +0200795 conn_force_close(srv_conn);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100796
797 if (si->err_type)
798 return 0;
799
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100800 if (si->flags & SI_FL_ERR)
801 si->err_type = SI_ET_CONN_ERR;
802 else
803 si->err_type = SI_ET_CONN_TO;
804 return 0;
805 }
806
807 /* OK, maybe we want to abort */
Willy Tarreaua7a7ebc2012-12-30 00:50:35 +0100808 if (!(req->flags & CF_WRITE_PARTIAL) &&
809 unlikely((rep->flags & CF_SHUTW) ||
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200810 ((req->flags & CF_SHUTW_NOW) && /* FIXME: this should not prevent a connection from establishing */
811 ((!(req->flags & CF_WRITE_ACTIVITY) && channel_is_empty(req)) ||
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100812 s->be->options & PR_O_ABRT_CLOSE)))) {
813 /* give up */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200814 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100815 si->err_type |= SI_ET_CONN_ABRT;
Willy Tarreau84455332009-03-15 22:34:05 +0100816 if (s->srv_error)
817 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100818 return 1;
819 }
820
821 /* we need to wait a bit more if there was no activity either */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200822 if (!(req->flags & CF_WRITE_ACTIVITY))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100823 return 1;
824
825 /* OK, this means that a connection succeeded. The caller will be
826 * responsible for handling the transition from CON to EST.
827 */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100828 si->state = SI_ST_EST;
829 si->err_type = SI_ET_NONE;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100830 return 1;
831}
832
833/* This function is called with (si->state == SI_ST_CER) meaning that a
834 * previous connection attempt has failed and that the file descriptor
835 * has already been released. Possible causes include asynchronous error
836 * notification and time out. Possible output states are SI_ST_CLO when
837 * retries are exhausted, SI_ST_TAR when a delay is wanted before a new
838 * connection attempt, SI_ST_ASS when it's wise to retry on the same server,
839 * and SI_ST_REQ when an immediate redispatch is wanted. The buffers are
840 * marked as in error state. It returns 0.
841 */
Simon Hormandec5be42011-06-08 09:19:07 +0900842static int sess_update_st_cer(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100843{
844 /* we probably have to release last session from the server */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100845 if (objt_server(s->target)) {
846 health_adjust(objt_server(s->target), HANA_STATUS_L4_ERR);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100847
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100848 if (s->flags & SN_CURR_SESS) {
849 s->flags &= ~SN_CURR_SESS;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100850 objt_server(s->target)->cur_sess--;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100851 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100852 }
853
854 /* ensure that we have enough retries left */
Willy Tarreauee28de02010-06-01 09:51:00 +0200855 si->conn_retries--;
856 if (si->conn_retries < 0) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100857 if (!si->err_type) {
858 si->err_type = SI_ET_CONN_ERR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100859 }
860
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100861 if (objt_server(s->target))
862 objt_server(s->target)->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100863 s->be->be_counters.failed_conns++;
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100864 sess_change_server(s, NULL);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100865 if (may_dequeue_tasks(objt_server(s->target), s->be))
866 process_srv_queue(objt_server(s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100867
868 /* shutw is enough so stop a connecting socket */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200869 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200870 si->ob->flags |= CF_WRITE_ERROR;
871 si->ib->flags |= CF_READ_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100872
873 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100874 if (s->srv_error)
875 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100876 return 0;
877 }
878
879 /* If the "redispatch" option is set on the backend, we are allowed to
880 * retry on another server for the last retry. In order to achieve this,
881 * we must mark the session unassigned, and eventually clear the DIRECT
882 * bit to ignore any persistence cookie. We won't count a retry nor a
883 * redispatch yet, because this will depend on what server is selected.
884 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100885 if (objt_server(s->target) && si->conn_retries == 0 &&
Willy Tarreau4de91492010-01-22 19:10:05 +0100886 s->be->options & PR_O_REDISP && !(s->flags & SN_FORCE_PRST)) {
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100887 sess_change_server(s, NULL);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100888 if (may_dequeue_tasks(objt_server(s->target), s->be))
889 process_srv_queue(objt_server(s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100890
891 s->flags &= ~(SN_DIRECT | SN_ASSIGNED | SN_ADDR_SET);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100892 si->state = SI_ST_REQ;
893 } else {
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100894 if (objt_server(s->target))
895 objt_server(s->target)->counters.retries++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100896 s->be->be_counters.retries++;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100897 si->state = SI_ST_ASS;
898 }
899
900 if (si->flags & SI_FL_ERR) {
901 /* The error was an asynchronous connection error, and we will
902 * likely have to retry connecting to the same server, most
903 * likely leading to the same result. To avoid this, we wait
904 * one second before retrying.
905 */
906
907 if (!si->err_type)
908 si->err_type = SI_ET_CONN_ERR;
909
910 si->state = SI_ST_TAR;
911 si->exp = tick_add(now_ms, MS_TO_TICKS(1000));
912 return 0;
913 }
914 return 0;
915}
916
917/*
918 * This function handles the transition between the SI_ST_CON state and the
Willy Tarreau85e7d002010-05-31 11:57:51 +0200919 * SI_ST_EST state. It must only be called after switching from SI_ST_CON (or
Willy Tarreau26d8c592012-05-07 18:12:14 +0200920 * SI_ST_INI) to SI_ST_EST, but only when a ->proto is defined.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100921 */
Simon Hormandec5be42011-06-08 09:19:07 +0900922static void sess_establish(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100923{
Willy Tarreau7421efb2012-07-02 15:11:27 +0200924 struct channel *req = si->ob;
925 struct channel *rep = si->ib;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100926
Willy Tarreau0e37f1c2013-12-31 23:06:46 +0100927 /* First, centralize the timers information */
928 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
929 si->exp = TICK_ETERNITY;
930
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100931 if (objt_server(s->target))
932 health_adjust(objt_server(s->target), HANA_STATUS_L4_OK);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100933
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100934 if (s->be->mode == PR_MODE_TCP) { /* let's allow immediate data connection in this case */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100935 /* if the user wants to log as soon as possible, without counting
936 * bytes from the server, then this is the right moment. */
Willy Tarreaud79a3b22012-12-28 09:40:16 +0100937 if (!LIST_ISEMPTY(&s->fe->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100938 s->logs.t_close = s->logs.t_connect; /* to get a valid end date */
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100939 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100940 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100941 }
942 else {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100943 s->txn.rsp.msg_state = HTTP_MSG_RPBEFORE;
Willy Tarreaud81ca042013-12-31 22:33:13 +0100944 rep->flags |= CF_READ_DONTWAIT; /* a single read is enough to get response headers */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100945 }
946
Willy Tarreau4e5b8282009-08-16 22:57:50 +0200947 rep->analysers |= s->fe->fe_rsp_ana | s->be->be_rsp_ana;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200948 rep->flags |= CF_READ_ATTACHED; /* producer is now attached */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200949 if (objt_conn(si->end)) {
Willy Tarreaud04e8582010-05-31 12:31:35 +0200950 /* real connections have timeouts */
951 req->wto = s->be->timeout.server;
952 rep->rto = s->be->timeout.server;
953 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100954 req->wex = TICK_ETERNITY;
955}
956
957/* Update stream interface status for input states SI_ST_ASS, SI_ST_QUE, SI_ST_TAR.
958 * Other input states are simply ignored.
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +0100959 * Possible output states are SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ, SI_ST_CON
960 * and SI_ST_EST. Flags must have previously been updated for timeouts and other
961 * conditions.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100962 */
Simon Hormandec5be42011-06-08 09:19:07 +0900963static void sess_update_stream_int(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100964{
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100965 struct server *srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +0100966
Willy Tarreau02d6cfc2012-03-01 18:19:58 +0100967 DPRINTF(stderr,"[%u] %s: sess=%p rq=%p, rp=%p, exp(r,w)=%u,%u rqf=%08x rpf=%08x rqh=%d rqt=%d rph=%d rpt=%d cs=%d ss=%d\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100968 now_ms, __FUNCTION__,
969 s,
970 s->req, s->rep,
971 s->req->rex, s->rep->wex,
972 s->req->flags, s->rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200973 s->req->buf->i, s->req->buf->o, s->rep->buf->i, s->rep->buf->o, s->rep->cons->state, s->req->cons->state);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100974
975 if (si->state == SI_ST_ASS) {
976 /* Server assigned to connection request, we have to try to connect now */
977 int conn_err;
978
979 conn_err = connect_server(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100980 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +0100981
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100982 if (conn_err == SN_ERR_NONE) {
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +0100983 /* state = SI_ST_CON or SI_ST_EST now */
Willy Tarreau827aee92011-03-10 16:55:02 +0100984 if (srv)
985 srv_inc_sess_ctr(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100986 return;
987 }
988
989 /* We have received a synchronous error. We might have to
990 * abort, retry immediately or redispatch.
991 */
992 if (conn_err == SN_ERR_INTERNAL) {
993 if (!si->err_type) {
994 si->err_type = SI_ET_CONN_OTHER;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100995 }
996
Willy Tarreau827aee92011-03-10 16:55:02 +0100997 if (srv)
998 srv_inc_sess_ctr(srv);
999 if (srv)
1000 srv->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001001 s->be->be_counters.failed_conns++;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001002
1003 /* release other sessions waiting for this server */
Willy Tarreaub89cfca2010-12-29 14:32:28 +01001004 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001005 if (may_dequeue_tasks(srv, s->be))
1006 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001007
1008 /* Failed and not retryable. */
Willy Tarreau73b013b2012-05-21 16:31:45 +02001009 si_shutr(si);
1010 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001011 si->ob->flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001012
1013 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1014
1015 /* no session was ever accounted for this server */
1016 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001017 if (s->srv_error)
1018 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001019 return;
1020 }
1021
1022 /* We are facing a retryable error, but we don't want to run a
1023 * turn-around now, as the problem is likely a source port
1024 * allocation problem, so we want to retry now.
1025 */
1026 si->state = SI_ST_CER;
1027 si->flags &= ~SI_FL_ERR;
1028 sess_update_st_cer(s, si);
1029 /* now si->state is one of SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ */
1030 return;
1031 }
1032 else if (si->state == SI_ST_QUE) {
1033 /* connection request was queued, check for any update */
1034 if (!s->pend_pos) {
1035 /* The connection is not in the queue anymore. Either
1036 * we have a server connection slot available and we
1037 * go directly to the assigned state, or we need to
1038 * load-balance first and go to the INI state.
1039 */
1040 si->exp = TICK_ETERNITY;
1041 if (unlikely(!(s->flags & SN_ASSIGNED)))
1042 si->state = SI_ST_REQ;
1043 else {
1044 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1045 si->state = SI_ST_ASS;
1046 }
1047 return;
1048 }
1049
1050 /* Connection request still in queue... */
1051 if (si->flags & SI_FL_EXP) {
1052 /* ... and timeout expired */
1053 si->exp = TICK_ETERNITY;
1054 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau827aee92011-03-10 16:55:02 +01001055 if (srv)
1056 srv->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001057 s->be->be_counters.failed_conns++;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001058 si_shutr(si);
1059 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001060 si->ob->flags |= CF_WRITE_TIMEOUT;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001061 if (!si->err_type)
1062 si->err_type = SI_ET_QUEUE_TO;
1063 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001064 if (s->srv_error)
1065 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001066 return;
1067 }
1068
1069 /* Connection remains in queue, check if we have to abort it */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001070 if ((si->ob->flags & (CF_READ_ERROR)) ||
1071 ((si->ob->flags & CF_SHUTW_NOW) && /* empty and client aborted */
Willy Tarreau8e21bb92012-08-24 22:40:29 +02001072 (channel_is_empty(si->ob) || s->be->options & PR_O_ABRT_CLOSE))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001073 /* give up */
1074 si->exp = TICK_ETERNITY;
1075 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau73b013b2012-05-21 16:31:45 +02001076 si_shutr(si);
1077 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001078 si->err_type |= SI_ET_QUEUE_ABRT;
1079 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001080 if (s->srv_error)
1081 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001082 return;
1083 }
1084
1085 /* Nothing changed */
1086 return;
1087 }
1088 else if (si->state == SI_ST_TAR) {
1089 /* Connection request might be aborted */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001090 if ((si->ob->flags & (CF_READ_ERROR)) ||
1091 ((si->ob->flags & CF_SHUTW_NOW) && /* empty and client aborted */
Willy Tarreau8e21bb92012-08-24 22:40:29 +02001092 (channel_is_empty(si->ob) || s->be->options & PR_O_ABRT_CLOSE))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001093 /* give up */
1094 si->exp = TICK_ETERNITY;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001095 si_shutr(si);
1096 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001097 si->err_type |= SI_ET_CONN_ABRT;
1098 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001099 if (s->srv_error)
1100 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001101 return;
1102 }
1103
1104 if (!(si->flags & SI_FL_EXP))
1105 return; /* still in turn-around */
1106
1107 si->exp = TICK_ETERNITY;
1108
1109 /* we keep trying on the same server as long as the session is
1110 * marked "assigned".
1111 * FIXME: Should we force a redispatch attempt when the server is down ?
1112 */
1113 if (s->flags & SN_ASSIGNED)
1114 si->state = SI_ST_ASS;
1115 else
1116 si->state = SI_ST_REQ;
1117 return;
1118 }
1119}
1120
Simon Hormandec5be42011-06-08 09:19:07 +09001121/* Set correct session termination flags in case no analyser has done it. It
1122 * also counts a failed request if the server state has not reached the request
1123 * stage.
1124 */
1125static void sess_set_term_flags(struct session *s)
1126{
1127 if (!(s->flags & SN_FINST_MASK)) {
1128 if (s->si[1].state < SI_ST_REQ) {
1129
1130 s->fe->fe_counters.failed_req++;
1131 if (s->listener->counters)
1132 s->listener->counters->failed_req++;
1133
1134 s->flags |= SN_FINST_R;
1135 }
1136 else if (s->si[1].state == SI_ST_QUE)
1137 s->flags |= SN_FINST_Q;
1138 else if (s->si[1].state < SI_ST_EST)
1139 s->flags |= SN_FINST_C;
1140 else if (s->si[1].state == SI_ST_EST || s->si[1].prev_state == SI_ST_EST)
1141 s->flags |= SN_FINST_D;
1142 else
1143 s->flags |= SN_FINST_L;
1144 }
1145}
1146
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001147/* This function initiates a server connection request on a stream interface
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001148 * already in SI_ST_REQ state. Upon success, the state goes to SI_ST_ASS for
1149 * a real connection to a server, indicating that a server has been assigned,
1150 * or SI_ST_EST for a successful connection to an applet. It may also return
1151 * SI_ST_QUE, or SI_ST_CLO upon error.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001152 */
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001153static void sess_prepare_conn_req(struct session *s, struct stream_interface *si)
1154{
1155 DPRINTF(stderr,"[%u] %s: sess=%p rq=%p, rp=%p, exp(r,w)=%u,%u rqf=%08x rpf=%08x rqh=%d rqt=%d rph=%d rpt=%d cs=%d ss=%d\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001156 now_ms, __FUNCTION__,
1157 s,
1158 s->req, s->rep,
1159 s->req->rex, s->rep->wex,
1160 s->req->flags, s->rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001161 s->req->buf->i, s->req->buf->o, s->rep->buf->i, s->rep->buf->o, s->rep->cons->state, s->req->cons->state);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001162
1163 if (si->state != SI_ST_REQ)
1164 return;
1165
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001166 if (unlikely(obj_type(s->target) == OBJ_TYPE_APPLET)) {
1167 /* the applet directly goes to the EST state */
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001168 struct appctx *appctx = objt_appctx(si->end);
1169
1170 if (!appctx || appctx->applet != __objt_applet(s->target))
1171 appctx = stream_int_register_handler(si, objt_applet(s->target));
1172
1173 if (!appctx) {
1174 /* No more memory, let's immediately abort. Force the
1175 * error code to ignore the ERR_LOCAL which is not a
1176 * real error.
1177 */
Willy Tarreau6bbb2f62013-12-09 17:14:23 +01001178 s->flags &= ~(SN_ERR_MASK | SN_FINST_MASK);
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001179
1180 si_shutr(si);
1181 si_shutw(si);
1182 si->ob->flags |= CF_WRITE_ERROR;
Willy Tarreau6bbb2f62013-12-09 17:14:23 +01001183 si->err_type = SI_ET_CONN_RES;
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001184 si->state = SI_ST_CLO;
1185 if (s->srv_error)
1186 s->srv_error(s, si);
1187 return;
1188 }
1189
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001190 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001191 si->state = SI_ST_EST;
1192 si->err_type = SI_ET_NONE;
Willy Tarreaufac4bd12013-11-30 09:21:49 +01001193 /* let sess_establish() finish the job */
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001194 return;
1195 }
1196
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001197 /* Try to assign a server */
1198 if (srv_redispatch_connect(s) != 0) {
1199 /* We did not get a server. Either we queued the
1200 * connection request, or we encountered an error.
1201 */
1202 if (si->state == SI_ST_QUE)
1203 return;
1204
1205 /* we did not get any server, let's check the cause */
Willy Tarreau73b013b2012-05-21 16:31:45 +02001206 si_shutr(si);
1207 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001208 si->ob->flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001209 if (!si->err_type)
1210 si->err_type = SI_ET_CONN_OTHER;
1211 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001212 if (s->srv_error)
1213 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001214 return;
1215 }
1216
1217 /* The server is assigned */
1218 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1219 si->state = SI_ST_ASS;
1220}
1221
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001222/* This stream analyser checks the switching rules and changes the backend
Willy Tarreau4de91492010-01-22 19:10:05 +01001223 * if appropriate. The default_backend rule is also considered, then the
1224 * target backend's forced persistence rules are also evaluated last if any.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001225 * It returns 1 if the processing can continue on next analysers, or zero if it
1226 * either needs more data or wants to immediately abort the request.
1227 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001228static int process_switching_rules(struct session *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001229{
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001230 struct persist_rule *prst_rule;
Willy Tarreau4de91492010-01-22 19:10:05 +01001231
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001232 req->analysers &= ~an_bit;
1233 req->analyse_exp = TICK_ETERNITY;
1234
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001235 DPRINTF(stderr,"[%u] %s: session=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%d analysers=%02x\n",
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001236 now_ms, __FUNCTION__,
1237 s,
1238 req,
1239 req->rex, req->wex,
1240 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001241 req->buf->i,
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001242 req->analysers);
1243
1244 /* now check whether we have some switching rules for this request */
1245 if (!(s->flags & SN_BE_ASSIGNED)) {
1246 struct switching_rule *rule;
1247
1248 list_for_each_entry(rule, &s->fe->switching_rules, list) {
1249 int ret;
1250
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001251 ret = acl_exec_cond(rule->cond, s->fe, s, &s->txn, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001252 ret = acl_pass(ret);
1253 if (rule->cond->pol == ACL_COND_UNLESS)
1254 ret = !ret;
1255
1256 if (ret) {
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001257 if (!session_set_backend(s, rule->be.backend))
1258 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001259 break;
1260 }
1261 }
1262
1263 /* To ensure correct connection accounting on the backend, we
1264 * have to assign one if it was not set (eg: a listen). This
1265 * measure also takes care of correctly setting the default
1266 * backend if any.
1267 */
1268 if (!(s->flags & SN_BE_ASSIGNED))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001269 if (!session_set_backend(s, s->fe->defbe.be ? s->fe->defbe.be : s->be))
1270 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001271 }
1272
Willy Tarreaufb356202010-08-03 14:02:05 +02001273 /* we don't want to run the TCP or HTTP filters again if the backend has not changed */
1274 if (s->fe == s->be) {
1275 s->req->analysers &= ~AN_REQ_INSPECT_BE;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001276 s->req->analysers &= ~AN_REQ_HTTP_PROCESS_BE;
Willy Tarreaufb356202010-08-03 14:02:05 +02001277 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001278
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001279 /* 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 +01001280 * persistence rule, and report that in the session.
1281 */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001282 list_for_each_entry(prst_rule, &s->be->persist_rules, list) {
Willy Tarreau4de91492010-01-22 19:10:05 +01001283 int ret = 1;
1284
1285 if (prst_rule->cond) {
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001286 ret = acl_exec_cond(prst_rule->cond, s->be, s, &s->txn, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreau4de91492010-01-22 19:10:05 +01001287 ret = acl_pass(ret);
1288 if (prst_rule->cond->pol == ACL_COND_UNLESS)
1289 ret = !ret;
1290 }
1291
1292 if (ret) {
1293 /* no rule, or the rule matches */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001294 if (prst_rule->type == PERSIST_TYPE_FORCE) {
1295 s->flags |= SN_FORCE_PRST;
1296 } else {
1297 s->flags |= SN_IGNORE_PRST;
1298 }
Willy Tarreau4de91492010-01-22 19:10:05 +01001299 break;
1300 }
1301 }
1302
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001303 return 1;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001304
1305 sw_failed:
1306 /* immediately abort this request in case of allocation failure */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001307 channel_abort(s->req);
1308 channel_abort(s->rep);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001309
1310 if (!(s->flags & SN_ERR_MASK))
1311 s->flags |= SN_ERR_RESOURCE;
1312 if (!(s->flags & SN_FINST_MASK))
1313 s->flags |= SN_FINST_R;
1314
1315 s->txn.status = 500;
1316 s->req->analysers = 0;
1317 s->req->analyse_exp = TICK_ETERNITY;
1318 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001319}
1320
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001321/* This stream analyser works on a request. It applies all use-server rules on
1322 * it then returns 1. The data must already be present in the buffer otherwise
1323 * they won't match. It always returns 1.
1324 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001325static int process_server_rules(struct session *s, struct channel *req, int an_bit)
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001326{
1327 struct proxy *px = s->be;
1328 struct server_rule *rule;
1329
1330 DPRINTF(stderr,"[%u] %s: session=%p b=%p, exp(r,w)=%u,%u bf=%08x bl=%d analysers=%02x\n",
1331 now_ms, __FUNCTION__,
1332 s,
1333 req,
1334 req->rex, req->wex,
1335 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001336 req->buf->i + req->buf->o,
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001337 req->analysers);
1338
1339 if (!(s->flags & SN_ASSIGNED)) {
1340 list_for_each_entry(rule, &px->server_rules, list) {
1341 int ret;
1342
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001343 ret = acl_exec_cond(rule->cond, s->be, s, &s->txn, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001344 ret = acl_pass(ret);
1345 if (rule->cond->pol == ACL_COND_UNLESS)
1346 ret = !ret;
1347
1348 if (ret) {
1349 struct server *srv = rule->srv.ptr;
1350
1351 if ((srv->state & SRV_RUNNING) ||
1352 (px->options & PR_O_PERSIST) ||
1353 (s->flags & SN_FORCE_PRST)) {
1354 s->flags |= SN_DIRECT | SN_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001355 s->target = &srv->obj_type;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001356 break;
1357 }
1358 /* if the server is not UP, let's go on with next rules
1359 * just in case another one is suited.
1360 */
1361 }
1362 }
1363 }
1364
1365 req->analysers &= ~an_bit;
1366 req->analyse_exp = TICK_ETERNITY;
1367 return 1;
1368}
1369
Emeric Brun1d33b292010-01-04 15:47:17 +01001370/* This stream analyser works on a request. It applies all sticking rules on
1371 * it then returns 1. The data must already be present in the buffer otherwise
1372 * they won't match. It always returns 1.
1373 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001374static int process_sticking_rules(struct session *s, struct channel *req, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001375{
1376 struct proxy *px = s->be;
1377 struct sticking_rule *rule;
1378
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001379 DPRINTF(stderr,"[%u] %s: session=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%d analysers=%02x\n",
Emeric Brun1d33b292010-01-04 15:47:17 +01001380 now_ms, __FUNCTION__,
1381 s,
1382 req,
1383 req->rex, req->wex,
1384 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001385 req->buf->i,
Emeric Brun1d33b292010-01-04 15:47:17 +01001386 req->analysers);
1387
1388 list_for_each_entry(rule, &px->sticking_rules, list) {
1389 int ret = 1 ;
1390 int i;
1391
Willy Tarreau9667a802013-12-09 12:52:13 +01001392 /* Only the first stick store-request of each table is applied
1393 * and other ones are ignored. The purpose is to allow complex
1394 * configurations which look for multiple entries by decreasing
1395 * order of precision and to stop at the first which matches.
1396 * An example could be a store of the IP address from an HTTP
1397 * header first, then from the source if not found.
1398 */
Emeric Brun1d33b292010-01-04 15:47:17 +01001399 for (i = 0; i < s->store_count; i++) {
1400 if (rule->table.t == s->store[i].table)
1401 break;
1402 }
1403
1404 if (i != s->store_count)
1405 continue;
1406
1407 if (rule->cond) {
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001408 ret = acl_exec_cond(rule->cond, px, s, &s->txn, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001409 ret = acl_pass(ret);
1410 if (rule->cond->pol == ACL_COND_UNLESS)
1411 ret = !ret;
1412 }
1413
1414 if (ret) {
1415 struct stktable_key *key;
1416
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001417 key = stktable_fetch_key(rule->table.t, px, s, &s->txn, SMP_OPT_DIR_REQ|SMP_OPT_FINAL, rule->expr);
Emeric Brun1d33b292010-01-04 15:47:17 +01001418 if (!key)
1419 continue;
1420
1421 if (rule->flags & STK_IS_MATCH) {
1422 struct stksess *ts;
1423
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001424 if ((ts = stktable_lookup_key(rule->table.t, key)) != NULL) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001425 if (!(s->flags & SN_ASSIGNED)) {
1426 struct eb32_node *node;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001427 void *ptr;
Emeric Brun1d33b292010-01-04 15:47:17 +01001428
1429 /* srv found in table */
Willy Tarreau13c29de2010-06-06 16:40:39 +02001430 ptr = stktable_data_ptr(rule->table.t, ts, STKTABLE_DT_SERVER_ID);
1431 node = eb32_lookup(&px->conf.used_server_id, stktable_data_cast(ptr, server_id));
Emeric Brun1d33b292010-01-04 15:47:17 +01001432 if (node) {
1433 struct server *srv;
1434
1435 srv = container_of(node, struct server, conf.id);
Willy Tarreau4de91492010-01-22 19:10:05 +01001436 if ((srv->state & SRV_RUNNING) ||
1437 (px->options & PR_O_PERSIST) ||
1438 (s->flags & SN_FORCE_PRST)) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001439 s->flags |= SN_DIRECT | SN_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001440 s->target = &srv->obj_type;
Emeric Brun1d33b292010-01-04 15:47:17 +01001441 }
1442 }
1443 }
Emeric Brun85e77c72010-09-23 18:16:52 +02001444 stktable_touch(rule->table.t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001445 }
1446 }
1447 if (rule->flags & STK_IS_STORE) {
1448 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
1449 struct stksess *ts;
1450
1451 ts = stksess_new(rule->table.t, key);
1452 if (ts) {
1453 s->store[s->store_count].table = rule->table.t;
1454 s->store[s->store_count++].ts = ts;
1455 }
1456 }
1457 }
1458 }
1459 }
1460
1461 req->analysers &= ~an_bit;
1462 req->analyse_exp = TICK_ETERNITY;
1463 return 1;
1464}
1465
1466/* This stream analyser works on a response. It applies all store rules on it
1467 * then returns 1. The data must already be present in the buffer otherwise
1468 * they won't match. It always returns 1.
1469 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001470static int process_store_rules(struct session *s, struct channel *rep, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001471{
1472 struct proxy *px = s->be;
1473 struct sticking_rule *rule;
1474 int i;
Willy Tarreau9667a802013-12-09 12:52:13 +01001475 int nbreq = s->store_count;
Emeric Brun1d33b292010-01-04 15:47:17 +01001476
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001477 DPRINTF(stderr,"[%u] %s: session=%p b=%p, exp(r,w)=%u,%u bf=%08x bh=%d analysers=%02x\n",
Emeric Brun1d33b292010-01-04 15:47:17 +01001478 now_ms, __FUNCTION__,
1479 s,
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001480 rep,
1481 rep->rex, rep->wex,
1482 rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001483 rep->buf->i,
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001484 rep->analysers);
Emeric Brun1d33b292010-01-04 15:47:17 +01001485
1486 list_for_each_entry(rule, &px->storersp_rules, list) {
1487 int ret = 1 ;
Emeric Brun1d33b292010-01-04 15:47:17 +01001488
Willy Tarreau9667a802013-12-09 12:52:13 +01001489 /* Only the first stick store-response of each table is applied
1490 * and other ones are ignored. The purpose is to allow complex
1491 * configurations which look for multiple entries by decreasing
1492 * order of precision and to stop at the first which matches.
1493 * An example could be a store of a set-cookie value, with a
1494 * fallback to a parameter found in a 302 redirect.
1495 *
1496 * The store-response rules are not allowed to override the
1497 * store-request rules for the same table, but they may coexist.
1498 * Thus we can have up to one store-request entry and one store-
1499 * response entry for the same table at any time.
1500 */
1501 for (i = nbreq; i < s->store_count; i++) {
1502 if (rule->table.t == s->store[i].table)
1503 break;
1504 }
1505
1506 /* skip existing entries for this table */
1507 if (i < s->store_count)
1508 continue;
1509
Emeric Brun1d33b292010-01-04 15:47:17 +01001510 if (rule->cond) {
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001511 ret = acl_exec_cond(rule->cond, px, s, &s->txn, SMP_OPT_DIR_RES|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001512 ret = acl_pass(ret);
1513 if (rule->cond->pol == ACL_COND_UNLESS)
1514 ret = !ret;
1515 }
1516
1517 if (ret) {
1518 struct stktable_key *key;
1519
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001520 key = stktable_fetch_key(rule->table.t, px, s, &s->txn, SMP_OPT_DIR_RES|SMP_OPT_FINAL, rule->expr);
Emeric Brun1d33b292010-01-04 15:47:17 +01001521 if (!key)
1522 continue;
1523
Willy Tarreau37e340c2013-12-06 23:05:21 +01001524 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001525 struct stksess *ts;
1526
1527 ts = stksess_new(rule->table.t, key);
1528 if (ts) {
1529 s->store[s->store_count].table = rule->table.t;
Emeric Brun1d33b292010-01-04 15:47:17 +01001530 s->store[s->store_count++].ts = ts;
1531 }
1532 }
1533 }
1534 }
1535
1536 /* process store request and store response */
1537 for (i = 0; i < s->store_count; i++) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001538 struct stksess *ts;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001539 void *ptr;
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001540
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001541 if (objt_server(s->target) && objt_server(s->target)->state & SRV_NON_STICK) {
Simon Hormanfa461682011-06-25 09:39:49 +09001542 stksess_free(s->store[i].table, s->store[i].ts);
1543 s->store[i].ts = NULL;
1544 continue;
1545 }
1546
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001547 ts = stktable_lookup(s->store[i].table, s->store[i].ts);
1548 if (ts) {
1549 /* the entry already existed, we can free ours */
Emeric Brun85e77c72010-09-23 18:16:52 +02001550 stktable_touch(s->store[i].table, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001551 stksess_free(s->store[i].table, s->store[i].ts);
Emeric Brun1d33b292010-01-04 15:47:17 +01001552 }
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001553 else
Emeric Brun85e77c72010-09-23 18:16:52 +02001554 ts = stktable_store(s->store[i].table, s->store[i].ts, 1);
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001555
1556 s->store[i].ts = NULL;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001557 ptr = stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_ID);
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001558 stktable_data_cast(ptr, server_id) = objt_server(s->target)->puid;
Emeric Brun1d33b292010-01-04 15:47:17 +01001559 }
Willy Tarreau2a164ee2010-06-18 09:57:45 +02001560 s->store_count = 0; /* everything is stored */
Emeric Brun1d33b292010-01-04 15:47:17 +01001561
1562 rep->analysers &= ~an_bit;
1563 rep->analyse_exp = TICK_ETERNITY;
1564 return 1;
1565}
1566
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001567/* This macro is very specific to the function below. See the comments in
1568 * process_session() below to understand the logic and the tests.
1569 */
1570#define UPDATE_ANALYSERS(real, list, back, flag) { \
1571 list = (((list) & ~(flag)) | ~(back)) & (real); \
1572 back = real; \
1573 if (!(list)) \
1574 break; \
1575 if (((list) ^ ((list) & ((list) - 1))) < (flag)) \
1576 continue; \
1577}
1578
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001579/* Processes the client, server, request and response jobs of a session task,
1580 * then puts it back to the wait queue in a clean state, or cleans up its
1581 * resources if it must be deleted. Returns in <next> the date the task wants
1582 * to be woken up, or TICK_ETERNITY. In order not to call all functions for
1583 * nothing too many times, the request and response buffers flags are monitored
1584 * and each function is called only if at least another function has changed at
1585 * least one flag it is interested in.
1586 */
Willy Tarreau26c25062009-03-08 09:38:41 +01001587struct task *process_session(struct task *t)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001588{
Willy Tarreau827aee92011-03-10 16:55:02 +01001589 struct server *srv;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001590 struct session *s = t->context;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001591 unsigned int rqf_last, rpf_last;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001592 unsigned int rq_prod_last, rq_cons_last;
1593 unsigned int rp_cons_last, rp_prod_last;
Willy Tarreau576507f2010-01-07 00:09:04 +01001594 unsigned int req_ana_back;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001595
1596 //DPRINTF(stderr, "%s:%d: cs=%d ss=%d(%d) rqf=0x%08x rpf=0x%08x\n", __FUNCTION__, __LINE__,
1597 // s->si[0].state, s->si[1].state, s->si[1].err_type, s->req->flags, s->rep->flags);
1598
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001599 /* this data may be no longer valid, clear it */
1600 memset(&s->txn.auth, 0, sizeof(s->txn.auth));
1601
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001602 /* This flag must explicitly be set every time */
Willy Tarreaud7ad9f52013-12-31 17:26:25 +01001603 s->req->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
1604 s->rep->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001605
1606 /* Keep a copy of req/rep flags so that we can detect shutdowns */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001607 rqf_last = s->req->flags & ~CF_MASK_ANALYSER;
1608 rpf_last = s->rep->flags & ~CF_MASK_ANALYSER;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001609
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001610 /* we don't want the stream interface functions to recursively wake us up */
1611 if (s->req->prod->owner == t)
1612 s->req->prod->flags |= SI_FL_DONT_WAKE;
1613 if (s->req->cons->owner == t)
1614 s->req->cons->flags |= SI_FL_DONT_WAKE;
1615
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001616 /* 1a: Check for low level timeouts if needed. We just set a flag on
1617 * stream interfaces when their timeouts have expired.
1618 */
1619 if (unlikely(t->state & TASK_WOKEN_TIMER)) {
1620 stream_int_check_timeouts(&s->si[0]);
1621 stream_int_check_timeouts(&s->si[1]);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001622
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001623 /* check channel timeouts, and close the corresponding stream interfaces
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001624 * for future reads or writes. Note: this will also concern upper layers
1625 * but we do not touch any other flag. We must be careful and correctly
1626 * detect state changes when calling them.
1627 */
1628
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001629 channel_check_timeouts(s->req);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001630
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001631 if (unlikely((s->req->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
Willy Tarreau14641402009-12-29 14:49:56 +01001632 s->req->cons->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001633 si_shutw(s->req->cons);
Willy Tarreau14641402009-12-29 14:49:56 +01001634 }
1635
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001636 if (unlikely((s->req->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001637 if (s->req->prod->flags & SI_FL_NOHALF)
1638 s->req->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001639 si_shutr(s->req->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001640 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001641
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001642 channel_check_timeouts(s->rep);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001643
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001644 if (unlikely((s->rep->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
Willy Tarreau14641402009-12-29 14:49:56 +01001645 s->rep->cons->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001646 si_shutw(s->rep->cons);
Willy Tarreau14641402009-12-29 14:49:56 +01001647 }
1648
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001649 if (unlikely((s->rep->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001650 if (s->rep->prod->flags & SI_FL_NOHALF)
1651 s->rep->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001652 si_shutr(s->rep->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001653 }
Willy Tarreau798f4322012-11-08 14:49:17 +01001654
1655 /* Once in a while we're woken up because the task expires. But
1656 * this does not necessarily mean that a timeout has been reached.
1657 * So let's not run a whole session processing if only an expiration
1658 * timeout needs to be refreshed.
1659 */
1660 if (!((s->req->flags | s->rep->flags) &
1661 (CF_SHUTR|CF_READ_ACTIVITY|CF_READ_TIMEOUT|CF_SHUTW|
1662 CF_WRITE_ACTIVITY|CF_WRITE_TIMEOUT|CF_ANA_TIMEOUT)) &&
1663 !((s->si[0].flags | s->si[1].flags) & (SI_FL_EXP|SI_FL_ERR)) &&
1664 ((t->state & TASK_WOKEN_ANY) == TASK_WOKEN_TIMER))
1665 goto update_exp_and_leave;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001666 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001667
1668 /* 1b: check for low-level errors reported at the stream interface.
1669 * First we check if it's a retryable error (in which case we don't
1670 * want to tell the buffer). Otherwise we report the error one level
1671 * upper by setting flags into the buffers. Note that the side towards
1672 * the client cannot have connect (hence retryable) errors. Also, the
1673 * connection setup code must be able to deal with any type of abort.
1674 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001675 srv = objt_server(s->target);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001676 if (unlikely(s->si[0].flags & SI_FL_ERR)) {
1677 if (s->si[0].state == SI_ST_EST || s->si[0].state == SI_ST_DIS) {
Willy Tarreau73b013b2012-05-21 16:31:45 +02001678 si_shutr(&s->si[0]);
1679 si_shutw(&s->si[0]);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001680 stream_int_report_error(&s->si[0]);
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001681 if (!(s->req->analysers) && !(s->rep->analysers)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001682 s->be->be_counters.cli_aborts++;
1683 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001684 if (srv)
1685 srv->counters.cli_aborts++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001686 if (!(s->flags & SN_ERR_MASK))
1687 s->flags |= SN_ERR_CLICL;
1688 if (!(s->flags & SN_FINST_MASK))
1689 s->flags |= SN_FINST_D;
1690 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001691 }
1692 }
1693
1694 if (unlikely(s->si[1].flags & SI_FL_ERR)) {
1695 if (s->si[1].state == SI_ST_EST || s->si[1].state == SI_ST_DIS) {
Willy Tarreau73b013b2012-05-21 16:31:45 +02001696 si_shutr(&s->si[1]);
1697 si_shutw(&s->si[1]);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001698 stream_int_report_error(&s->si[1]);
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001699 s->be->be_counters.failed_resp++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001700 if (srv)
1701 srv->counters.failed_resp++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001702 if (!(s->req->analysers) && !(s->rep->analysers)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001703 s->be->be_counters.srv_aborts++;
1704 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001705 if (srv)
1706 srv->counters.srv_aborts++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001707 if (!(s->flags & SN_ERR_MASK))
1708 s->flags |= SN_ERR_SRVCL;
1709 if (!(s->flags & SN_FINST_MASK))
1710 s->flags |= SN_FINST_D;
1711 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001712 }
1713 /* note: maybe we should process connection errors here ? */
1714 }
1715
1716 if (s->si[1].state == SI_ST_CON) {
1717 /* we were trying to establish a connection on the server side,
1718 * maybe it succeeded, maybe it failed, maybe we timed out, ...
1719 */
1720 if (unlikely(!sess_update_st_con_tcp(s, &s->si[1])))
1721 sess_update_st_cer(s, &s->si[1]);
1722 else if (s->si[1].state == SI_ST_EST)
1723 sess_establish(s, &s->si[1]);
1724
1725 /* state is now one of SI_ST_CON (still in progress), SI_ST_EST
1726 * (established), SI_ST_DIS (abort), SI_ST_CLO (last error),
1727 * SI_ST_ASS/SI_ST_TAR/SI_ST_REQ for retryable errors.
1728 */
1729 }
1730
Willy Tarreau815a9b22010-07-27 17:15:12 +02001731 rq_prod_last = s->si[0].state;
1732 rq_cons_last = s->si[1].state;
1733 rp_cons_last = s->si[0].state;
1734 rp_prod_last = s->si[1].state;
1735
1736 resync_stream_interface:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001737 /* Check for connection closure */
1738
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001739 DPRINTF(stderr,
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001740 "[%u] %s:%d: task=%p s=%p, sfl=0x%08x, rq=%p, rp=%p, exp(r,w)=%u,%u rqf=%08x rpf=%08x rqh=%d rqt=%d rph=%d rpt=%d cs=%d ss=%d, cet=0x%x set=0x%x retr=%d\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001741 now_ms, __FUNCTION__, __LINE__,
1742 t,
1743 s, s->flags,
1744 s->req, s->rep,
1745 s->req->rex, s->rep->wex,
1746 s->req->flags, s->rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001747 s->req->buf->i, s->req->buf->o, s->rep->buf->i, s->rep->buf->o, s->rep->cons->state, s->req->cons->state,
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001748 s->rep->cons->err_type, s->req->cons->err_type,
Willy Tarreauee28de02010-06-01 09:51:00 +02001749 s->req->cons->conn_retries);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001750
1751 /* nothing special to be done on client side */
1752 if (unlikely(s->req->prod->state == SI_ST_DIS))
1753 s->req->prod->state = SI_ST_CLO;
1754
1755 /* When a server-side connection is released, we have to count it and
1756 * check for pending connections on this server.
1757 */
1758 if (unlikely(s->req->cons->state == SI_ST_DIS)) {
1759 s->req->cons->state = SI_ST_CLO;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001760 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01001761 if (srv) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001762 if (s->flags & SN_CURR_SESS) {
1763 s->flags &= ~SN_CURR_SESS;
Willy Tarreau827aee92011-03-10 16:55:02 +01001764 srv->cur_sess--;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001765 }
1766 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001767 if (may_dequeue_tasks(srv, s->be))
1768 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001769 }
1770 }
1771
1772 /*
1773 * Note: of the transient states (REQ, CER, DIS), only REQ may remain
1774 * at this point.
1775 */
1776
Willy Tarreau0be0ef92009-03-08 19:20:25 +01001777 resync_request:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001778 /* Analyse request */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001779 if (((s->req->flags & ~rqf_last) & CF_MASK_ANALYSER) ||
1780 ((s->req->flags ^ rqf_last) & CF_MASK_STATIC) ||
Willy Tarreau815a9b22010-07-27 17:15:12 +02001781 s->si[0].state != rq_prod_last ||
1782 s->si[1].state != rq_cons_last) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001783 unsigned int flags = s->req->flags;
1784
1785 if (s->req->prod->state >= SI_ST_EST) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001786 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001787 unsigned int ana_list;
1788 unsigned int ana_back;
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001789
Willy Tarreau90deb182010-01-07 00:20:41 +01001790 /* it's up to the analysers to stop new connections,
1791 * disable reading or closing. Note: if an analyser
1792 * disables any of these bits, it is responsible for
1793 * enabling them again when it disables itself, so
1794 * that other analysers are called in similar conditions.
1795 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001796 channel_auto_read(s->req);
1797 channel_auto_connect(s->req);
1798 channel_auto_close(s->req);
Willy Tarreauedcf6682008-11-30 23:15:34 +01001799
1800 /* We will call all analysers for which a bit is set in
1801 * s->req->analysers, following the bit order from LSB
1802 * to MSB. The analysers must remove themselves from
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001803 * the list when not needed. Any analyser may return 0
1804 * to break out of the loop, either because of missing
1805 * data to take a decision, or because it decides to
1806 * kill the session. We loop at least once through each
1807 * analyser, and we may loop again if other analysers
1808 * are added in the middle.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001809 *
1810 * We build a list of analysers to run. We evaluate all
1811 * of these analysers in the order of the lower bit to
1812 * the higher bit. This ordering is very important.
1813 * An analyser will often add/remove other analysers,
1814 * including itself. Any changes to itself have no effect
1815 * on the loop. If it removes any other analysers, we
1816 * want those analysers not to be called anymore during
1817 * this loop. If it adds an analyser that is located
1818 * after itself, we want it to be scheduled for being
1819 * processed during the loop. If it adds an analyser
1820 * which is located before it, we want it to switch to
1821 * it immediately, even if it has already been called
1822 * once but removed since.
1823 *
1824 * In order to achieve this, we compare the analyser
1825 * list after the call with a copy of it before the
1826 * call. The work list is fed with analyser bits that
1827 * appeared during the call. Then we compare previous
1828 * work list with the new one, and check the bits that
1829 * appeared. If the lowest of these bits is lower than
1830 * the current bit, it means we have enabled a previous
1831 * analyser and must immediately loop again.
Willy Tarreauedcf6682008-11-30 23:15:34 +01001832 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001833
1834 ana_list = ana_back = s->req->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001835 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001836 /* Warning! ensure that analysers are always placed in ascending order! */
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001837
Willy Tarreaufb356202010-08-03 14:02:05 +02001838 if (ana_list & AN_REQ_INSPECT_FE) {
1839 if (!tcp_inspect_request(s, s->req, AN_REQ_INSPECT_FE))
Willy Tarreauedcf6682008-11-30 23:15:34 +01001840 break;
Willy Tarreaufb356202010-08-03 14:02:05 +02001841 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_INSPECT_FE);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001842 }
Willy Tarreauedcf6682008-11-30 23:15:34 +01001843
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001844 if (ana_list & AN_REQ_WAIT_HTTP) {
Willy Tarreau3a816292009-07-07 10:55:49 +02001845 if (!http_wait_for_request(s, s->req, AN_REQ_WAIT_HTTP))
Willy Tarreaud787e662009-07-07 10:14:51 +02001846 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001847 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_WAIT_HTTP);
Willy Tarreaud787e662009-07-07 10:14:51 +02001848 }
1849
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001850 if (ana_list & AN_REQ_HTTP_PROCESS_FE) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001851 if (!http_process_req_common(s, s->req, AN_REQ_HTTP_PROCESS_FE, s->fe))
1852 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001853 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_PROCESS_FE);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001854 }
1855
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001856 if (ana_list & AN_REQ_SWITCHING_RULES) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001857 if (!process_switching_rules(s, s->req, AN_REQ_SWITCHING_RULES))
1858 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001859 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_SWITCHING_RULES);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001860 }
1861
Willy Tarreaufb356202010-08-03 14:02:05 +02001862 if (ana_list & AN_REQ_INSPECT_BE) {
1863 if (!tcp_inspect_request(s, s->req, AN_REQ_INSPECT_BE))
1864 break;
1865 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_INSPECT_BE);
1866 }
1867
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001868 if (ana_list & AN_REQ_HTTP_PROCESS_BE) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001869 if (!http_process_req_common(s, s->req, AN_REQ_HTTP_PROCESS_BE, s->be))
1870 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001871 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_PROCESS_BE);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001872 }
1873
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001874 if (ana_list & AN_REQ_HTTP_TARPIT) {
Willy Tarreau3a816292009-07-07 10:55:49 +02001875 if (!http_process_tarpit(s, s->req, AN_REQ_HTTP_TARPIT))
Willy Tarreau60b85b02008-11-30 23:28:40 +01001876 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001877 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_TARPIT);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001878 }
Willy Tarreau60b85b02008-11-30 23:28:40 +01001879
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001880 if (ana_list & AN_REQ_SRV_RULES) {
1881 if (!process_server_rules(s, s->req, AN_REQ_SRV_RULES))
1882 break;
1883 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_SRV_RULES);
1884 }
1885
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001886 if (ana_list & AN_REQ_HTTP_INNER) {
Willy Tarreauc465fd72009-08-31 00:17:18 +02001887 if (!http_process_request(s, s->req, AN_REQ_HTTP_INNER))
1888 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001889 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_INNER);
Willy Tarreauc465fd72009-08-31 00:17:18 +02001890 }
1891
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001892 if (ana_list & AN_REQ_HTTP_BODY) {
Willy Tarreau3a816292009-07-07 10:55:49 +02001893 if (!http_process_request_body(s, s->req, AN_REQ_HTTP_BODY))
Willy Tarreaud34af782008-11-30 23:36:37 +01001894 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001895 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_BODY);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001896 }
Emeric Brun647caf12009-06-30 17:57:00 +02001897
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001898 if (ana_list & AN_REQ_PRST_RDP_COOKIE) {
Emeric Brun647caf12009-06-30 17:57:00 +02001899 if (!tcp_persist_rdp_cookie(s, s->req, AN_REQ_PRST_RDP_COOKIE))
1900 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001901 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_PRST_RDP_COOKIE);
Emeric Brun647caf12009-06-30 17:57:00 +02001902 }
Willy Tarreaud98cf932009-12-27 22:54:55 +01001903
Emeric Brun1d33b292010-01-04 15:47:17 +01001904 if (ana_list & AN_REQ_STICKING_RULES) {
1905 if (!process_sticking_rules(s, s->req, AN_REQ_STICKING_RULES))
1906 break;
1907 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_STICKING_RULES);
1908 }
1909
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001910 if (ana_list & AN_REQ_HTTP_XFER_BODY) {
Willy Tarreaud98cf932009-12-27 22:54:55 +01001911 if (!http_request_forward_body(s, s->req, AN_REQ_HTTP_XFER_BODY))
1912 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001913 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_XFER_BODY);
Willy Tarreaud98cf932009-12-27 22:54:55 +01001914 }
Willy Tarreaue34070e2010-01-08 00:32:27 +01001915 break;
1916 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001917 }
Willy Tarreau84455332009-03-15 22:34:05 +01001918
Willy Tarreau815a9b22010-07-27 17:15:12 +02001919 rq_prod_last = s->si[0].state;
1920 rq_cons_last = s->si[1].state;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001921 s->req->flags &= ~CF_WAKE_ONCE;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001922 rqf_last = s->req->flags;
1923
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001924 if ((s->req->flags ^ flags) & CF_MASK_STATIC)
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001925 goto resync_request;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001926 }
1927
Willy Tarreau576507f2010-01-07 00:09:04 +01001928 /* we'll monitor the request analysers while parsing the response,
1929 * because some response analysers may indirectly enable new request
1930 * analysers (eg: HTTP keep-alive).
1931 */
1932 req_ana_back = s->req->analysers;
1933
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001934 resync_response:
1935 /* Analyse response */
1936
Willy Tarreaub31c9712012-11-11 23:05:39 +01001937 if (((s->rep->flags & ~rpf_last) & CF_MASK_ANALYSER) ||
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001938 (s->rep->flags ^ rpf_last) & CF_MASK_STATIC ||
Willy Tarreau815a9b22010-07-27 17:15:12 +02001939 s->si[0].state != rp_cons_last ||
1940 s->si[1].state != rp_prod_last) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001941 unsigned int flags = s->rep->flags;
1942
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001943 if ((s->rep->flags & CF_MASK_ANALYSER) &&
Willy Tarreau0499e352010-12-17 07:13:42 +01001944 (s->rep->analysers & AN_REQ_WAIT_HTTP)) {
1945 /* Due to HTTP pipelining, the HTTP request analyser might be waiting
1946 * for some free space in the response buffer, so we might need to call
1947 * it when something changes in the response buffer, but still we pass
1948 * it the request buffer. Note that the SI state might very well still
1949 * be zero due to us returning a flow of redirects!
1950 */
1951 s->rep->analysers &= ~AN_REQ_WAIT_HTTP;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001952 s->req->flags |= CF_WAKE_ONCE;
Willy Tarreau0499e352010-12-17 07:13:42 +01001953 }
1954
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001955 if (s->rep->prod->state >= SI_ST_EST) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001956 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001957 unsigned int ana_list;
1958 unsigned int ana_back;
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001959
Willy Tarreau90deb182010-01-07 00:20:41 +01001960 /* it's up to the analysers to stop disable reading or
1961 * closing. Note: if an analyser disables any of these
1962 * bits, it is responsible for enabling them again when
1963 * it disables itself, so that other analysers are called
1964 * in similar conditions.
1965 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001966 channel_auto_read(s->rep);
1967 channel_auto_close(s->rep);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001968
1969 /* We will call all analysers for which a bit is set in
1970 * s->rep->analysers, following the bit order from LSB
1971 * to MSB. The analysers must remove themselves from
1972 * the list when not needed. Any analyser may return 0
1973 * to break out of the loop, either because of missing
1974 * data to take a decision, or because it decides to
1975 * kill the session. We loop at least once through each
1976 * analyser, and we may loop again if other analysers
1977 * are added in the middle.
1978 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001979
1980 ana_list = ana_back = s->rep->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001981 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001982 /* Warning! ensure that analysers are always placed in ascending order! */
1983
Emeric Brun97679e72010-09-23 17:56:44 +02001984 if (ana_list & AN_RES_INSPECT) {
1985 if (!tcp_inspect_response(s, s->rep, AN_RES_INSPECT))
1986 break;
1987 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_INSPECT);
1988 }
1989
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001990 if (ana_list & AN_RES_WAIT_HTTP) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001991 if (!http_wait_for_response(s, s->rep, AN_RES_WAIT_HTTP))
1992 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001993 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_WAIT_HTTP);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001994 }
1995
Emeric Brun1d33b292010-01-04 15:47:17 +01001996 if (ana_list & AN_RES_STORE_RULES) {
1997 if (!process_store_rules(s, s->rep, AN_RES_STORE_RULES))
1998 break;
1999 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_STORE_RULES);
2000 }
2001
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002002 if (ana_list & AN_RES_HTTP_PROCESS_BE) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002003 if (!http_process_res_common(s, s->rep, AN_RES_HTTP_PROCESS_BE, s->be))
2004 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002005 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_HTTP_PROCESS_BE);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002006 }
Willy Tarreaud98cf932009-12-27 22:54:55 +01002007
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002008 if (ana_list & AN_RES_HTTP_XFER_BODY) {
Willy Tarreaud98cf932009-12-27 22:54:55 +01002009 if (!http_response_forward_body(s, s->rep, AN_RES_HTTP_XFER_BODY))
2010 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002011 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_HTTP_XFER_BODY);
Willy Tarreaud98cf932009-12-27 22:54:55 +01002012 }
Willy Tarreaue34070e2010-01-08 00:32:27 +01002013 break;
2014 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002015 }
2016
Willy Tarreau815a9b22010-07-27 17:15:12 +02002017 rp_cons_last = s->si[0].state;
2018 rp_prod_last = s->si[1].state;
2019 rpf_last = s->rep->flags;
2020
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002021 if ((s->rep->flags ^ flags) & CF_MASK_STATIC)
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002022 goto resync_response;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002023 }
2024
Willy Tarreau576507f2010-01-07 00:09:04 +01002025 /* maybe someone has added some request analysers, so we must check and loop */
2026 if (s->req->analysers & ~req_ana_back)
2027 goto resync_request;
2028
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002029 if ((s->req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0499e352010-12-17 07:13:42 +01002030 goto resync_request;
2031
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002032 /* FIXME: here we should call protocol handlers which rely on
2033 * both buffers.
2034 */
2035
2036
2037 /*
Willy Tarreauae526782010-03-04 20:34:23 +01002038 * Now we propagate unhandled errors to the session. Normally
2039 * we're just in a data phase here since it means we have not
2040 * seen any analyser who could set an error status.
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002041 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002042 srv = objt_server(s->target);
Willy Tarreau2f976e12010-11-11 14:28:47 +01002043 if (unlikely(!(s->flags & SN_ERR_MASK))) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002044 if (s->req->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002045 /* Report it if the client got an error or a read timeout expired */
Willy Tarreau84455332009-03-15 22:34:05 +01002046 s->req->analysers = 0;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002047 if (s->req->flags & CF_READ_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002048 s->be->be_counters.cli_aborts++;
2049 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002050 if (srv)
2051 srv->counters.cli_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002052 s->flags |= SN_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002053 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002054 else if (s->req->flags & CF_READ_TIMEOUT) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002055 s->be->be_counters.cli_aborts++;
2056 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002057 if (srv)
2058 srv->counters.cli_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002059 s->flags |= SN_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01002060 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002061 else if (s->req->flags & CF_WRITE_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002062 s->be->be_counters.srv_aborts++;
2063 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002064 if (srv)
2065 srv->counters.srv_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002066 s->flags |= SN_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002067 }
2068 else {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002069 s->be->be_counters.srv_aborts++;
2070 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002071 if (srv)
2072 srv->counters.srv_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002073 s->flags |= SN_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002074 }
Willy Tarreau84455332009-03-15 22:34:05 +01002075 sess_set_term_flags(s);
2076 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002077 else if (s->rep->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002078 /* Report it if the server got an error or a read timeout expired */
2079 s->rep->analysers = 0;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002080 if (s->rep->flags & CF_READ_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002081 s->be->be_counters.srv_aborts++;
2082 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002083 if (srv)
2084 srv->counters.srv_aborts++;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002085 s->flags |= SN_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002086 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002087 else if (s->rep->flags & CF_READ_TIMEOUT) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002088 s->be->be_counters.srv_aborts++;
2089 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002090 if (srv)
2091 srv->counters.srv_aborts++;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002092 s->flags |= SN_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002093 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002094 else if (s->rep->flags & CF_WRITE_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002095 s->be->be_counters.cli_aborts++;
2096 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002097 if (srv)
2098 srv->counters.cli_aborts++;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002099 s->flags |= SN_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002100 }
2101 else {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002102 s->be->be_counters.cli_aborts++;
2103 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002104 if (srv)
2105 srv->counters.cli_aborts++;
Willy Tarreauae526782010-03-04 20:34:23 +01002106 s->flags |= SN_ERR_CLITO;
2107 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002108 sess_set_term_flags(s);
2109 }
Willy Tarreau84455332009-03-15 22:34:05 +01002110 }
2111
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002112 /*
2113 * Here we take care of forwarding unhandled data. This also includes
2114 * connection establishments and shutdown requests.
2115 */
2116
2117
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002118 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002119 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002120 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002121 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002122 */
Willy Tarreau2b028dd2013-12-31 23:56:46 +01002123 if (unlikely(!s->req->analysers &&
Willy Tarreaub31c9712012-11-11 23:05:39 +01002124 !(s->req->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau31971e52009-09-20 12:07:52 +02002125 (s->req->prod->state >= SI_ST_EST) &&
Willy Tarreau2b028dd2013-12-31 23:56:46 +01002126 (s->req->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002127 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002128 * attached to it. If any data are left in, we'll permit them to
2129 * move.
2130 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002131 channel_auto_read(s->req);
2132 channel_auto_connect(s->req);
2133 channel_auto_close(s->req);
Willy Tarreau9b28e032012-10-12 23:49:43 +02002134 buffer_flush(s->req->buf);
Willy Tarreau5bd8c372009-01-19 00:32:22 +01002135
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002136 /* We'll let data flow between the producer (if still connected)
2137 * to the consumer (which might possibly not be connected yet).
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002138 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002139 if (!(s->req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002140 channel_forward(s->req, CHN_INFINITE_FORWARD);
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002141 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002142
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002143 /* check if it is wise to enable kernel splicing to forward request data */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002144 if (!(s->req->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002145 s->req->to_forward &&
2146 (global.tune.options & GTUNE_USE_SPLICE) &&
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002147 (objt_conn(s->si[0].end) && __objt_conn(s->si[0].end)->xprt && __objt_conn(s->si[0].end)->xprt->rcv_pipe) &&
2148 (objt_conn(s->si[1].end) && __objt_conn(s->si[1].end)->xprt && __objt_conn(s->si[1].end)->xprt->snd_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002149 (pipes_used < global.maxpipes) &&
2150 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_REQ) ||
2151 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002152 (s->req->flags & CF_STREAMER_FAST)))) {
2153 s->req->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002154 }
2155
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002156 /* reflect what the L7 analysers have seen last */
2157 rqf_last = s->req->flags;
2158
2159 /*
2160 * Now forward all shutdown requests between both sides of the buffer
2161 */
2162
Willy Tarreau520d95e2009-09-19 21:04:57 +02002163 /* first, let's check if the request buffer needs to shutdown(write), which may
2164 * happen either because the input is closed or because we want to force a close
Willy Tarreaue4599762010-03-21 23:25:09 +01002165 * once the server has begun to respond.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002166 */
Willy Tarreaub31c9712012-11-11 23:05:39 +01002167 if (unlikely((s->req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002168 (CF_AUTO_CLOSE|CF_SHUTR)))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002169 channel_shutw_now(s->req);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002170
2171 /* shutdown(write) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002172 if (unlikely((s->req->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
Willy Tarreau8615c2a2013-06-21 08:20:19 +02002173 channel_is_empty(s->req))) {
2174 if (s->req->flags & CF_READ_ERROR)
2175 s->req->cons->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02002176 si_shutw(s->req->cons);
Willy Tarreau8615c2a2013-06-21 08:20:19 +02002177 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002178
2179 /* shutdown(write) done on server side, we must stop the client too */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002180 if (unlikely((s->req->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW &&
Willy Tarreau3dbc6942008-12-07 13:05:04 +01002181 !s->req->analysers))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002182 channel_shutr_now(s->req);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002183
2184 /* shutdown(read) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002185 if (unlikely((s->req->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002186 if (s->req->prod->flags & SI_FL_NOHALF)
2187 s->req->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02002188 si_shutr(s->req->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002189 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002190
Willy Tarreau520d95e2009-09-19 21:04:57 +02002191 /* it's possible that an upper layer has requested a connection setup or abort.
2192 * There are 2 situations where we decide to establish a new connection :
2193 * - there are data scheduled for emission in the buffer
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002194 * - the CF_AUTO_CONNECT flag is set (active connection)
Willy Tarreau520d95e2009-09-19 21:04:57 +02002195 */
2196 if (s->req->cons->state == SI_ST_INI) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002197 if (!(s->req->flags & CF_SHUTW)) {
2198 if ((s->req->flags & CF_AUTO_CONNECT) || !channel_is_empty(s->req)) {
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002199 /* If we have an appctx, there is no connect method, so we
2200 * immediately switch to the connected state, otherwise we
2201 * perform a connection request.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002202 */
Willy Tarreau85e7d002010-05-31 11:57:51 +02002203 s->req->cons->state = SI_ST_REQ; /* new connection requested */
Willy Tarreau070ceb62010-06-01 10:36:43 +02002204 s->req->cons->conn_retries = s->be->conn_retries;
Willy Tarreau520d95e2009-09-19 21:04:57 +02002205 }
Willy Tarreau73201222009-08-16 18:27:24 +02002206 }
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002207 else {
Willy Tarreau92795622009-03-06 12:51:23 +01002208 s->req->cons->state = SI_ST_CLO; /* shutw+ini = abort */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002209 channel_shutw_now(s->req); /* fix buffer flags upon abort */
2210 channel_shutr_now(s->rep);
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002211 }
Willy Tarreau92795622009-03-06 12:51:23 +01002212 }
2213
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002214
2215 /* we may have a pending connection request, or a connection waiting
2216 * for completion.
2217 */
2218 if (s->si[1].state >= SI_ST_REQ && s->si[1].state < SI_ST_CON) {
2219 do {
2220 /* nb: step 1 might switch from QUE to ASS, but we first want
2221 * to give a chance to step 2 to perform a redirect if needed.
2222 */
2223 if (s->si[1].state != SI_ST_REQ)
2224 sess_update_stream_int(s, &s->si[1]);
Willy Tarreaub44c8732013-12-31 23:16:50 +01002225 if (s->si[1].state == SI_ST_REQ)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002226 sess_prepare_conn_req(s, &s->si[1]);
2227
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +01002228 /* applets directly go to the ESTABLISHED state. Similarly,
2229 * servers experience the same fate when their connection
2230 * is reused.
2231 */
Willy Tarreaub44c8732013-12-31 23:16:50 +01002232 if (unlikely(s->si[1].state == SI_ST_EST))
2233 sess_establish(s, &s->si[1]);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01002234
Willy Tarreaub44c8732013-12-31 23:16:50 +01002235 /* Now we can add the server name to a header (if requested) */
2236 /* check for HTTP mode and proxy server_name_hdr_name != NULL */
2237 if ((s->si[1].state >= SI_ST_CON) &&
2238 (s->be->server_id_hdr_name != NULL) &&
2239 (s->be->mode == PR_MODE_HTTP) &&
2240 objt_server(s->target)) {
2241 http_send_name_header(&s->txn, s->be, objt_server(s->target)->id);
Willy Tarreau1e5dfda2013-04-07 18:19:16 +02002242 }
2243
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002244 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01002245 if (s->si[1].state == SI_ST_ASS && srv && srv->rdr_len && (s->flags & SN_REDIRECTABLE))
Willy Tarreau71241ab2012-12-27 11:30:54 +01002246 http_perform_server_redirect(s, &s->si[1]);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002247 } while (s->si[1].state == SI_ST_ASS);
2248 }
2249
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002250 /* Benchmarks have shown that it's optimal to do a full resync now */
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002251 if (s->req->prod->state == SI_ST_DIS || s->req->cons->state == SI_ST_DIS)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002252 goto resync_stream_interface;
2253
Willy Tarreau815a9b22010-07-27 17:15:12 +02002254 /* otherwise we want to check if we need to resync the req buffer or not */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002255 if ((s->req->flags ^ rqf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002256 goto resync_request;
2257
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002258 /* perform output updates to the response buffer */
Willy Tarreau84455332009-03-15 22:34:05 +01002259
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002260 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002261 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002262 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002263 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002264 */
Willy Tarreau2b028dd2013-12-31 23:56:46 +01002265 if (unlikely(!s->rep->analysers &&
Willy Tarreaub31c9712012-11-11 23:05:39 +01002266 !(s->rep->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau31971e52009-09-20 12:07:52 +02002267 (s->rep->prod->state >= SI_ST_EST) &&
Willy Tarreau2b028dd2013-12-31 23:56:46 +01002268 (s->rep->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002269 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002270 * attached to it. If any data are left in, we'll permit them to
2271 * move.
2272 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002273 channel_auto_read(s->rep);
2274 channel_auto_close(s->rep);
Willy Tarreau9b28e032012-10-12 23:49:43 +02002275 buffer_flush(s->rep->buf);
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002276
2277 /* We'll let data flow between the producer (if still connected)
2278 * to the consumer.
2279 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002280 if (!(s->rep->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002281 channel_forward(s->rep, CHN_INFINITE_FORWARD);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002282
2283 /* if we have no analyser anymore in any direction and have a
2284 * tunnel timeout set, use it now.
2285 */
2286 if (!s->req->analysers && s->be->timeout.tunnel) {
2287 s->req->rto = s->req->wto = s->rep->rto = s->rep->wto =
2288 s->be->timeout.tunnel;
2289 s->req->rex = s->req->wex = s->rep->rex = s->rep->wex =
2290 tick_add(now_ms, s->be->timeout.tunnel);
2291 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002292 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002293
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002294 /* check if it is wise to enable kernel splicing to forward response data */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002295 if (!(s->rep->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002296 s->rep->to_forward &&
2297 (global.tune.options & GTUNE_USE_SPLICE) &&
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002298 (objt_conn(s->si[0].end) && __objt_conn(s->si[0].end)->xprt && __objt_conn(s->si[0].end)->xprt->snd_pipe) &&
2299 (objt_conn(s->si[1].end) && __objt_conn(s->si[1].end)->xprt && __objt_conn(s->si[1].end)->xprt->rcv_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002300 (pipes_used < global.maxpipes) &&
2301 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_RTR) ||
2302 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002303 (s->rep->flags & CF_STREAMER_FAST)))) {
2304 s->rep->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002305 }
2306
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002307 /* reflect what the L7 analysers have seen last */
2308 rpf_last = s->rep->flags;
2309
2310 /*
2311 * Now forward all shutdown requests between both sides of the buffer
2312 */
2313
2314 /*
2315 * FIXME: this is probably where we should produce error responses.
2316 */
2317
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002318 /* first, let's check if the response buffer needs to shutdown(write) */
Willy Tarreaub31c9712012-11-11 23:05:39 +01002319 if (unlikely((s->rep->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002320 (CF_AUTO_CLOSE|CF_SHUTR)))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002321 channel_shutw_now(s->rep);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002322
2323 /* shutdown(write) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002324 if (unlikely((s->rep->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
Willy Tarreau8e21bb92012-08-24 22:40:29 +02002325 channel_is_empty(s->rep)))
Willy Tarreau73b013b2012-05-21 16:31:45 +02002326 si_shutw(s->rep->cons);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002327
2328 /* shutdown(write) done on the client side, we must stop the server too */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002329 if (unlikely((s->rep->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW) &&
Willy Tarreau3dbc6942008-12-07 13:05:04 +01002330 !s->rep->analysers)
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002331 channel_shutr_now(s->rep);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002332
2333 /* shutdown(read) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002334 if (unlikely((s->rep->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002335 if (s->rep->prod->flags & SI_FL_NOHALF)
2336 s->rep->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02002337 si_shutr(s->rep->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002338 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002339
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002340 if (s->req->prod->state == SI_ST_DIS || s->req->cons->state == SI_ST_DIS)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002341 goto resync_stream_interface;
2342
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002343 if (s->req->flags != rqf_last)
2344 goto resync_request;
2345
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002346 if ((s->rep->flags ^ rpf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002347 goto resync_response;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002348
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002349 /* we're interested in getting wakeups again */
2350 s->req->prod->flags &= ~SI_FL_DONT_WAKE;
2351 s->req->cons->flags &= ~SI_FL_DONT_WAKE;
2352
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002353 /* This is needed only when debugging is enabled, to indicate
2354 * client-side or server-side close. Please note that in the unlikely
2355 * event where both sides would close at once, the sequence is reported
2356 * on the server side first.
2357 */
2358 if (unlikely((global.mode & MODE_DEBUG) &&
2359 (!(global.mode & MODE_QUIET) ||
2360 (global.mode & MODE_VERBOSE)))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002361 if (s->si[1].state == SI_ST_CLO &&
2362 s->si[1].prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002363 chunk_printf(&trash, "%08x:%s.srvcls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002364 s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002365 objt_conn(s->si[0].end) ? (unsigned short)objt_conn(s->si[0].end)->t.sock.fd : -1,
2366 objt_conn(s->si[1].end) ? (unsigned short)objt_conn(s->si[1].end)->t.sock.fd : -1);
Willy Tarreau89efaed2013-12-13 15:14:55 +01002367 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002368 }
2369
2370 if (s->si[0].state == SI_ST_CLO &&
2371 s->si[0].prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002372 chunk_printf(&trash, "%08x:%s.clicls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002373 s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002374 objt_conn(s->si[0].end) ? (unsigned short)objt_conn(s->si[0].end)->t.sock.fd : -1,
2375 objt_conn(s->si[1].end) ? (unsigned short)objt_conn(s->si[1].end)->t.sock.fd : -1);
Willy Tarreau89efaed2013-12-13 15:14:55 +01002376 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002377 }
2378 }
2379
2380 if (likely((s->rep->cons->state != SI_ST_CLO) ||
2381 (s->req->cons->state > SI_ST_INI && s->req->cons->state < SI_ST_CLO))) {
2382
2383 if ((s->fe->options & PR_O_CONTSTATS) && (s->flags & SN_BE_ASSIGNED))
2384 session_process_counters(s);
2385
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002386 if (s->rep->cons->state == SI_ST_EST && obj_type(s->rep->cons->end) != OBJ_TYPE_APPCTX)
Willy Tarreau73b013b2012-05-21 16:31:45 +02002387 si_update(s->rep->cons);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002388
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002389 if (s->req->cons->state == SI_ST_EST && obj_type(s->req->cons->end) != OBJ_TYPE_APPCTX)
Willy Tarreau73b013b2012-05-21 16:31:45 +02002390 si_update(s->req->cons);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002391
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002392 s->req->flags &= ~(CF_READ_NULL|CF_READ_PARTIAL|CF_WRITE_NULL|CF_WRITE_PARTIAL|CF_READ_ATTACHED);
2393 s->rep->flags &= ~(CF_READ_NULL|CF_READ_PARTIAL|CF_WRITE_NULL|CF_WRITE_PARTIAL|CF_READ_ATTACHED);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002394 s->si[0].prev_state = s->si[0].state;
2395 s->si[1].prev_state = s->si[1].state;
Willy Tarreaub0ef7352008-12-14 13:26:20 +01002396 s->si[0].flags &= ~(SI_FL_ERR|SI_FL_EXP);
2397 s->si[1].flags &= ~(SI_FL_ERR|SI_FL_EXP);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002398
2399 /* Trick: if a request is being waiting for the server to respond,
2400 * and if we know the server can timeout, we don't want the timeout
2401 * to expire on the client side first, but we're still interested
2402 * in passing data from the client to the server (eg: POST). Thus,
2403 * we can cancel the client's request timeout if the server's
2404 * request timeout is set and the server has not yet sent a response.
2405 */
2406
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002407 if ((s->rep->flags & (CF_AUTO_CLOSE|CF_SHUTR)) == 0 &&
Willy Tarreau86491c32008-12-14 09:04:47 +01002408 (tick_isset(s->req->wex) || tick_isset(s->rep->rex))) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002409 s->req->flags |= CF_READ_NOEXP;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002410 s->req->rex = TICK_ETERNITY;
Willy Tarreau86491c32008-12-14 09:04:47 +01002411 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002412
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002413 /* When any of the stream interfaces is attached to an applet,
2414 * we have to call it here. Note that this one may wake the
2415 * task up again. If at least one applet was called, the current
2416 * task might have been woken up, in which case we don't want it
2417 * to be requeued to the wait queue but rather to the run queue
2418 * to run ASAP. The bitwise "or" in the condition ensures that
2419 * both functions are always called and that we wake up if at
2420 * least one did something.
Willy Tarreau1accfc02009-09-05 20:57:35 +02002421 */
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002422 if ((si_applet_call(s->req->cons) | si_applet_call(s->rep->cons)) != 0) {
Willy Tarreau1accfc02009-09-05 20:57:35 +02002423 if (task_in_rq(t)) {
Willy Tarreau1accfc02009-09-05 20:57:35 +02002424 t->expire = TICK_ETERNITY;
2425 return t;
2426 }
2427 }
2428
Willy Tarreau798f4322012-11-08 14:49:17 +01002429 update_exp_and_leave:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002430 t->expire = tick_first(tick_first(s->req->rex, s->req->wex),
2431 tick_first(s->rep->rex, s->rep->wex));
2432 if (s->req->analysers)
2433 t->expire = tick_first(t->expire, s->req->analyse_exp);
2434
2435 if (s->si[0].exp)
2436 t->expire = tick_first(t->expire, s->si[0].exp);
2437
2438 if (s->si[1].exp)
2439 t->expire = tick_first(t->expire, s->si[1].exp);
2440
2441#ifdef DEBUG_FULL
Willy Tarreau127334e2009-03-28 10:47:26 +01002442 fprintf(stderr,
2443 "[%u] queuing with exp=%u req->rex=%u req->wex=%u req->ana_exp=%u"
2444 " rep->rex=%u rep->wex=%u, si[0].exp=%u, si[1].exp=%u, cs=%d, ss=%d\n",
2445 now_ms, t->expire, s->req->rex, s->req->wex, s->req->analyse_exp,
2446 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 +01002447#endif
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002448
2449#ifdef DEBUG_DEV
2450 /* this may only happen when no timeout is set or in case of an FSM bug */
Willy Tarreaud0a201b2009-03-08 15:53:06 +01002451 if (!tick_isset(t->expire))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002452 ABORT_NOW();
2453#endif
Willy Tarreau26c25062009-03-08 09:38:41 +01002454 return t; /* nothing more to do */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002455 }
2456
2457 s->fe->feconn--;
2458 if (s->flags & SN_BE_ASSIGNED)
2459 s->be->beconn--;
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002460 if (!(s->listener->options & LI_O_UNLIMITED))
2461 actconn--;
Willy Tarreauaf7ad002010-08-31 15:39:26 +02002462 jobs--;
Willy Tarreau6e6fb2b2009-08-16 18:20:44 +02002463 s->listener->nbconn--;
Willy Tarreau62793712011-07-24 19:23:38 +02002464 if (s->listener->state == LI_FULL)
2465 resume_listener(s->listener);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002466
Willy Tarreau08ceb102011-07-24 22:58:00 +02002467 /* Dequeues all of the listeners waiting for a resource */
2468 if (!LIST_ISEMPTY(&global_listener_queue))
2469 dequeue_all_listeners(&global_listener_queue);
2470
Willy Tarreaub32907b2011-07-25 08:37:44 +02002471 if (!LIST_ISEMPTY(&s->fe->listener_queue) &&
2472 (!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 +02002473 dequeue_all_listeners(&s->fe->listener_queue);
2474
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002475 if (unlikely((global.mode & MODE_DEBUG) &&
2476 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)))) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002477 chunk_printf(&trash, "%08x:%s.closed[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002478 s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002479 objt_conn(s->si[0].end) ? (unsigned short)objt_conn(s->si[0].end)->t.sock.fd : -1,
2480 objt_conn(s->si[1].end) ? (unsigned short)objt_conn(s->si[1].end)->t.sock.fd : -1);
Willy Tarreau89efaed2013-12-13 15:14:55 +01002481 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002482 }
2483
2484 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
2485 session_process_counters(s);
2486
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002487 if (s->txn.status) {
2488 int n;
2489
2490 n = s->txn.status / 100;
2491 if (n < 1 || n > 5)
2492 n = 0;
2493
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002494 if (s->fe->mode == PR_MODE_HTTP) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002495 s->fe->fe_counters.p.http.rsp[n]++;
Willy Tarreau8139b992012-11-27 07:35:31 +01002496 if (s->comp_algo && (s->flags & SN_COMP_READY))
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002497 s->fe->fe_counters.p.http.comp_rsp++;
2498 }
Willy Tarreau24657792010-02-26 10:30:28 +01002499 if ((s->flags & SN_BE_ASSIGNED) &&
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002500 (s->be->mode == PR_MODE_HTTP)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002501 s->be->be_counters.p.http.rsp[n]++;
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002502 s->be->be_counters.p.http.cum_req++;
Willy Tarreau8139b992012-11-27 07:35:31 +01002503 if (s->comp_algo && (s->flags & SN_COMP_READY))
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002504 s->be->be_counters.p.http.comp_rsp++;
2505 }
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002506 }
2507
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002508 /* let's do a final log if we need it */
Willy Tarreaud79a3b22012-12-28 09:40:16 +01002509 if (!LIST_ISEMPTY(&s->fe->logformat) && s->logs.logwait &&
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002510 !(s->flags & SN_MONITOR) &&
2511 (!(s->fe->options & PR_O_NULLNOLOG) || s->req->total)) {
Willy Tarreaua5555ec2008-11-30 19:02:32 +01002512 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002513 }
2514
2515 /* the task MUST not be in the run queue anymore */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002516 session_free(s);
Willy Tarreau26c25062009-03-08 09:38:41 +01002517 task_delete(t);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002518 task_free(t);
Willy Tarreau26c25062009-03-08 09:38:41 +01002519 return NULL;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002520}
2521
Willy Tarreau7c669d72008-06-20 15:04:11 +02002522/*
2523 * This function adjusts sess->srv_conn and maintains the previous and new
2524 * server's served session counts. Setting newsrv to NULL is enough to release
2525 * current connection slot. This function also notifies any LB algo which might
2526 * expect to be informed about any change in the number of active sessions on a
2527 * server.
2528 */
2529void sess_change_server(struct session *sess, struct server *newsrv)
2530{
2531 if (sess->srv_conn == newsrv)
2532 return;
2533
2534 if (sess->srv_conn) {
2535 sess->srv_conn->served--;
2536 if (sess->srv_conn->proxy->lbprm.server_drop_conn)
2537 sess->srv_conn->proxy->lbprm.server_drop_conn(sess->srv_conn);
Simon Hormanaf514952011-06-21 14:34:57 +09002538 session_del_srv_conn(sess);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002539 }
2540
2541 if (newsrv) {
2542 newsrv->served++;
2543 if (newsrv->proxy->lbprm.server_take_conn)
2544 newsrv->proxy->lbprm.server_take_conn(newsrv);
Simon Hormanaf514952011-06-21 14:34:57 +09002545 session_add_srv_conn(sess, newsrv);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002546 }
2547}
2548
Willy Tarreau84455332009-03-15 22:34:05 +01002549/* Handle server-side errors for default protocols. It is called whenever a a
2550 * connection setup is aborted or a request is aborted in queue. It sets the
2551 * session termination flags so that the caller does not have to worry about
2552 * them. It's installed as ->srv_error for the server-side stream_interface.
2553 */
2554void default_srv_error(struct session *s, struct stream_interface *si)
2555{
2556 int err_type = si->err_type;
2557 int err = 0, fin = 0;
2558
2559 if (err_type & SI_ET_QUEUE_ABRT) {
2560 err = SN_ERR_CLICL;
2561 fin = SN_FINST_Q;
2562 }
2563 else if (err_type & SI_ET_CONN_ABRT) {
2564 err = SN_ERR_CLICL;
2565 fin = SN_FINST_C;
2566 }
2567 else if (err_type & SI_ET_QUEUE_TO) {
2568 err = SN_ERR_SRVTO;
2569 fin = SN_FINST_Q;
2570 }
2571 else if (err_type & SI_ET_QUEUE_ERR) {
2572 err = SN_ERR_SRVCL;
2573 fin = SN_FINST_Q;
2574 }
2575 else if (err_type & SI_ET_CONN_TO) {
2576 err = SN_ERR_SRVTO;
2577 fin = SN_FINST_C;
2578 }
2579 else if (err_type & SI_ET_CONN_ERR) {
2580 err = SN_ERR_SRVCL;
2581 fin = SN_FINST_C;
2582 }
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002583 else if (err_type & SI_ET_CONN_RES) {
2584 err = SN_ERR_RESOURCE;
2585 fin = SN_FINST_C;
2586 }
Willy Tarreau84455332009-03-15 22:34:05 +01002587 else /* SI_ET_CONN_OTHER and others */ {
2588 err = SN_ERR_INTERNAL;
2589 fin = SN_FINST_C;
2590 }
2591
2592 if (!(s->flags & SN_ERR_MASK))
2593 s->flags |= err;
2594 if (!(s->flags & SN_FINST_MASK))
2595 s->flags |= fin;
2596}
Willy Tarreau7c669d72008-06-20 15:04:11 +02002597
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002598/* kill a session and set the termination flags to <why> (one of SN_ERR_*) */
2599void session_shutdown(struct session *session, int why)
2600{
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002601 if (session->req->flags & (CF_SHUTW|CF_SHUTW_NOW))
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002602 return;
2603
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002604 channel_shutw_now(session->req);
2605 channel_shutr_now(session->rep);
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002606 session->task->nice = 1024;
2607 if (!(session->flags & SN_ERR_MASK))
2608 session->flags |= why;
2609 task_wakeup(session->task, TASK_WOKEN_OTHER);
2610}
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02002611
Willy Tarreau8b22a712010-06-18 17:46:06 +02002612/************************************************************************/
2613/* All supported ACL keywords must be declared here. */
2614/************************************************************************/
2615
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002616/* Returns a pointer to a stkctr depending on the fetch keyword name.
2617 * It is designed to be called as sc[0-9]_* sc_* or src_* exclusively.
Willy Tarreaua65536c2013-07-22 22:40:11 +02002618 * sc[0-9]_* will return a pointer to the respective field in the
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002619 * session <l4>. sc_* requires an UINT argument specifying the stick
2620 * counter number. src_* will fill a locally allocated structure with
Willy Tarreaua65536c2013-07-22 22:40:11 +02002621 * the table and entry corresponding to what is specified with src_*.
Willy Tarreau0f791d42013-07-23 19:56:43 +02002622 * NULL may be returned if the designated stkctr is not tracked. For
2623 * the sc_* and sc[0-9]_* forms, an optional table argument may be
2624 * passed. When present, the currently tracked key is then looked up
2625 * in the specified table instead of the current table. The purpose is
2626 * to be able to convery multiple values per key (eg: have gpc0 from
2627 * multiple tables).
Willy Tarreaua65536c2013-07-22 22:40:11 +02002628 */
2629static struct stkctr *
2630smp_fetch_sc_stkctr(struct session *l4, const struct arg *args, const char *kw)
2631{
2632 static struct stkctr stkctr;
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002633 unsigned int num = kw[2] - '0';
Willy Tarreau0f791d42013-07-23 19:56:43 +02002634 int arg = 0;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002635
Willy Tarreau0f791d42013-07-23 19:56:43 +02002636 if (num == '_' - '0') {
2637 /* sc_* variant, args[0] = ctr# (mandatory) */
2638 num = args[arg++].data.uint;
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002639 if (num >= MAX_SESS_STKCTR)
2640 return NULL;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002641 }
Willy Tarreau0f791d42013-07-23 19:56:43 +02002642 else if (num > 9) { /* src_* variant, args[0] = table */
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002643 struct stktable_key *key;
2644 struct connection *conn = objt_conn(l4->si[0].end);
2645
2646 if (!conn)
2647 return NULL;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002648
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002649 key = addr_to_stktable_key(&conn->addr.from);
Willy Tarreaua65536c2013-07-22 22:40:11 +02002650 if (!key)
2651 return NULL;
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002652
Willy Tarreaua65536c2013-07-22 22:40:11 +02002653 stkctr.table = &args->data.prx->table;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002654 stkctr_set_entry(&stkctr, stktable_lookup_key(stkctr.table, key));
Willy Tarreaua65536c2013-07-22 22:40:11 +02002655 return &stkctr;
2656 }
Willy Tarreau0f791d42013-07-23 19:56:43 +02002657
2658 /* Here, <num> contains the counter number from 0 to 9 for
2659 * the sc[0-9]_ form, or even higher using sc_(num) if needed.
2660 * args[arg] is the first optional argument.
2661 */
2662 if (unlikely(args[arg].type == ARGT_TAB)) {
2663 /* an alternate table was specified, let's look up the same key there */
2664 stkctr.table = &args[arg].data.prx->table;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002665 stkctr_set_entry(&stkctr, stktable_lookup(stkctr.table, stkctr_entry(&l4->stkctr[num])));
Willy Tarreau0f791d42013-07-23 19:56:43 +02002666 return &stkctr;
2667 }
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002668 return stkctr_entry(&l4->stkctr[num]) ? &l4->stkctr[num] : NULL;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002669}
2670
Willy Tarreau88821242013-07-22 18:29:29 +02002671/* set return a boolean indicating if the requested session counter is
2672 * currently being tracked or not.
2673 * Supports being called as "sc[0-9]_tracked" only.
2674 */
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002675static int
Willy Tarreau88821242013-07-22 18:29:29 +02002676smp_fetch_sc_tracked(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02002677 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002678{
2679 smp->flags = SMP_F_VOL_TEST;
2680 smp->type = SMP_T_BOOL;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002681 smp->data.uint = !!stkctr_entry(&l4->stkctr[kw[2] - '0']);
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002682 return 1;
2683}
2684
Willy Tarreau30b20462013-07-22 19:46:52 +02002685/* set <smp> to the General Purpose Counter 0 value from the session's tracked
2686 * frontend counters or from the src.
2687 * Supports being called as "sc[0-9]_get_gpc0" or "src_get_gpc0" only. Value
2688 * zero is returned if the key is new.
2689 */
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002690static int
Willy Tarreau30b20462013-07-22 19:46:52 +02002691smp_fetch_sc_get_gpc0(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2692 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002693{
Willy Tarreau30b20462013-07-22 19:46:52 +02002694 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2695
2696 if (!stkctr)
2697 return 0;
2698
Willy Tarreau37406352012-04-23 16:16:37 +02002699 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002700 smp->type = SMP_T_UINT;
2701 smp->data.uint = 0;
Willy Tarreau30b20462013-07-22 19:46:52 +02002702
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002703 if (stkctr_entry(stkctr) != NULL) {
2704 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0);
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002705 if (!ptr)
2706 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002707 smp->data.uint = stktable_data_cast(ptr, gpc0);
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002708 }
2709 return 1;
2710}
2711
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002712/* set <smp> to the General Purpose Counter 0's event rate from the session's
2713 * tracked frontend counters or from the src.
2714 * Supports being called as "sc[0-9]_gpc0_rate" or "src_gpc0_rate" only.
2715 * Value zero is returned if the key is new.
2716 */
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002717static int
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002718smp_fetch_sc_gpc0_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2719 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002720{
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002721 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2722
2723 if (!stkctr)
2724 return 0;
2725
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002726 smp->flags = SMP_F_VOL_TEST;
2727 smp->type = SMP_T_UINT;
2728 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002729 if (stkctr_entry(stkctr) != NULL) {
2730 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0_RATE);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002731 if (!ptr)
2732 return 0; /* parameter not stored */
2733 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, gpc0_rate),
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002734 stkctr->table->data_arg[STKTABLE_DT_GPC0_RATE].u);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002735 }
2736 return 1;
2737}
2738
Willy Tarreau710d38c2013-07-23 00:07:04 +02002739/* Increment the General Purpose Counter 0 value from the session's tracked
2740 * frontend counters and return it into temp integer.
2741 * Supports being called as "sc[0-9]_inc_gpc0" or "src_inc_gpc0" only.
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002742 */
2743static int
Willy Tarreau710d38c2013-07-23 00:07:04 +02002744smp_fetch_sc_inc_gpc0(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2745 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002746{
Willy Tarreau710d38c2013-07-23 00:07:04 +02002747 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2748
2749 if (!stkctr)
2750 return 0;
2751
Willy Tarreau37406352012-04-23 16:16:37 +02002752 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002753 smp->type = SMP_T_UINT;
2754 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002755 if (stkctr_entry(stkctr) != NULL) {
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002756 void *ptr;
2757
2758 /* First, update gpc0_rate if it's tracked. Second, update its
2759 * gpc0 if tracked. Returns gpc0's value otherwise the curr_ctr.
2760 */
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002761 ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0_RATE);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002762 if (ptr) {
2763 update_freq_ctr_period(&stktable_data_cast(ptr, gpc0_rate),
Willy Tarreau710d38c2013-07-23 00:07:04 +02002764 stkctr->table->data_arg[STKTABLE_DT_GPC0_RATE].u, 1);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002765 smp->data.uint = (&stktable_data_cast(ptr, gpc0_rate))->curr_ctr;
2766 }
2767
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002768 ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002769 if (ptr)
2770 smp->data.uint = ++stktable_data_cast(ptr, gpc0);
2771
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002772 }
2773 return 1;
2774}
2775
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002776/* Clear the General Purpose Counter 0 value from the session's tracked
2777 * frontend counters and return its previous value into temp integer.
2778 * Supports being called as "sc[0-9]_clr_gpc0" or "src_clr_gpc0" only.
Willy Tarreauf73cd112011-08-13 01:45:16 +02002779 */
2780static int
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002781smp_fetch_sc_clr_gpc0(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2782 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauf73cd112011-08-13 01:45:16 +02002783{
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002784 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2785
2786 if (!stkctr)
2787 return 0;
2788
Willy Tarreau37406352012-04-23 16:16:37 +02002789 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002790 smp->type = SMP_T_UINT;
2791 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002792 if (stkctr_entry(stkctr) != NULL) {
2793 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0);
Willy Tarreauf73cd112011-08-13 01:45:16 +02002794 if (!ptr)
2795 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002796 smp->data.uint = stktable_data_cast(ptr, gpc0);
Willy Tarreauf73cd112011-08-13 01:45:16 +02002797 stktable_data_cast(ptr, gpc0) = 0;
2798 }
2799 return 1;
2800}
2801
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002802/* set <smp> to the cumulated number of connections from the session's tracked
2803 * frontend counters. Supports being called as "sc[0-9]_conn_cnt" or
2804 * "src_conn_cnt" only.
2805 */
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002806static int
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002807smp_fetch_sc_conn_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2808 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002809{
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002810 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2811
2812 if (!stkctr)
2813 return 0;
2814
Willy Tarreau37406352012-04-23 16:16:37 +02002815 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002816 smp->type = SMP_T_UINT;
2817 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002818 if (stkctr_entry(stkctr) != NULL) {
2819 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_CONN_CNT);
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002820 if (!ptr)
2821 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002822 smp->data.uint = stktable_data_cast(ptr, conn_cnt);
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002823 }
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002824 return 1;
2825}
2826
Willy Tarreauc8c65702013-07-23 15:09:35 +02002827/* set <smp> to the connection rate from the session's tracked frontend
2828 * counters. Supports being called as "sc[0-9]_conn_rate" or "src_conn_rate"
2829 * only.
2830 */
Willy Tarreau91c43d72010-06-20 11:19:22 +02002831static int
Willy Tarreauc8c65702013-07-23 15:09:35 +02002832smp_fetch_sc_conn_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2833 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau91c43d72010-06-20 11:19:22 +02002834{
Willy Tarreauc8c65702013-07-23 15:09:35 +02002835 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2836
2837 if (!stkctr)
2838 return 0;
2839
Willy Tarreau37406352012-04-23 16:16:37 +02002840 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002841 smp->type = SMP_T_UINT;
2842 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002843 if (stkctr_entry(stkctr) != NULL) {
2844 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_CONN_RATE);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002845 if (!ptr)
2846 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002847 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, conn_rate),
Willy Tarreauc8c65702013-07-23 15:09:35 +02002848 stkctr->table->data_arg[STKTABLE_DT_CONN_RATE].u);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002849 }
2850 return 1;
2851}
2852
Willy Tarreaua5e37562011-12-16 17:06:15 +01002853/* set temp integer to the number of connections from the session's source address
Willy Tarreau8b22a712010-06-18 17:46:06 +02002854 * in the table pointed to by expr, after updating it.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02002855 * Accepts exactly 1 argument of type table.
Willy Tarreau8b22a712010-06-18 17:46:06 +02002856 */
2857static int
Willy Tarreau281c7992013-01-08 01:23:27 +01002858smp_fetch_src_updt_conn_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02002859 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau8b22a712010-06-18 17:46:06 +02002860{
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002861 struct connection *conn = objt_conn(l4->si[0].end);
Willy Tarreau8b22a712010-06-18 17:46:06 +02002862 struct stksess *ts;
2863 struct stktable_key *key;
2864 void *ptr;
2865
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002866 if (!conn)
2867 return 0;
2868
2869 key = addr_to_stktable_key(&conn->addr.from);
Willy Tarreau8b22a712010-06-18 17:46:06 +02002870 if (!key)
David du Colombier4f92d322011-03-24 11:09:31 +01002871 return 0;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002872
Willy Tarreau24e32d82012-04-23 23:55:44 +02002873 px = args->data.prx;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002874
Willy Tarreau1f7e9252010-06-20 12:27:21 +02002875 if ((ts = stktable_update_key(&px->table, key)) == NULL)
2876 /* entry does not exist and could not be created */
2877 return 0;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002878
2879 ptr = stktable_data_ptr(&px->table, ts, STKTABLE_DT_CONN_CNT);
2880 if (!ptr)
2881 return 0; /* parameter not stored in this table */
2882
Willy Tarreauf853c462012-04-23 18:53:56 +02002883 smp->type = SMP_T_UINT;
2884 smp->data.uint = ++stktable_data_cast(ptr, conn_cnt);
Willy Tarreau37406352012-04-23 16:16:37 +02002885 smp->flags = SMP_F_VOL_TEST;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002886 return 1;
2887}
2888
Willy Tarreauf44a5532013-07-23 15:17:53 +02002889/* set <smp> to the number of concurrent connections from the session's tracked
2890 * frontend counters. Supports being called as "sc[0-9]_conn_cur" or
2891 * "src_conn_cur" only.
2892 */
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002893static int
Willy Tarreauf44a5532013-07-23 15:17:53 +02002894smp_fetch_sc_conn_cur(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2895 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002896{
Willy Tarreauf44a5532013-07-23 15:17:53 +02002897 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2898
2899 if (!stkctr)
2900 return 0;
2901
Willy Tarreau37406352012-04-23 16:16:37 +02002902 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002903 smp->type = SMP_T_UINT;
2904 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002905 if (stkctr_entry(stkctr) != NULL) {
2906 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_CONN_CUR);
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002907 if (!ptr)
2908 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002909 smp->data.uint = stktable_data_cast(ptr, conn_cur);
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002910 }
2911 return 1;
2912}
2913
Willy Tarreau20843082013-07-23 15:35:33 +02002914/* set <smp> to the cumulated number of sessions from the session's tracked
2915 * frontend counters. Supports being called as "sc[0-9]_sess_cnt" or
2916 * "src_sess_cnt" only.
2917 */
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002918static int
Willy Tarreau20843082013-07-23 15:35:33 +02002919smp_fetch_sc_sess_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2920 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002921{
Willy Tarreau20843082013-07-23 15:35:33 +02002922 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2923
2924 if (!stkctr)
2925 return 0;
2926
Willy Tarreau37406352012-04-23 16:16:37 +02002927 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002928 smp->type = SMP_T_UINT;
2929 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002930 if (stkctr_entry(stkctr) != NULL) {
2931 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_SESS_CNT);
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002932 if (!ptr)
2933 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002934 smp->data.uint = stktable_data_cast(ptr, sess_cnt);
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002935 }
2936 return 1;
2937}
2938
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002939/* set <smp> to the session rate from the session's tracked frontend counters.
2940 * Supports being called as "sc[0-9]_sess_rate" or "src_sess_rate" only.
2941 */
Willy Tarreau91c43d72010-06-20 11:19:22 +02002942static int
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002943smp_fetch_sc_sess_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2944 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau91c43d72010-06-20 11:19:22 +02002945{
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002946 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2947
2948 if (!stkctr)
2949 return 0;
2950
Willy Tarreau37406352012-04-23 16:16:37 +02002951 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002952 smp->type = SMP_T_UINT;
2953 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002954 if (stkctr_entry(stkctr) != NULL) {
2955 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_SESS_RATE);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002956 if (!ptr)
2957 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002958 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, sess_rate),
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002959 stkctr->table->data_arg[STKTABLE_DT_SESS_RATE].u);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002960 }
2961 return 1;
2962}
2963
Willy Tarreau91200da2013-07-23 15:55:19 +02002964/* set <smp> to the cumulated number of HTTP requests from the session's tracked
2965 * frontend counters. Supports being called as "sc[0-9]_http_req_cnt" or
2966 * "src_http_req_cnt" only.
2967 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02002968static int
Willy Tarreau91200da2013-07-23 15:55:19 +02002969smp_fetch_sc_http_req_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2970 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02002971{
Willy Tarreau91200da2013-07-23 15:55:19 +02002972 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2973
2974 if (!stkctr)
2975 return 0;
2976
Willy Tarreau37406352012-04-23 16:16:37 +02002977 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002978 smp->type = SMP_T_UINT;
2979 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002980 if (stkctr_entry(stkctr) != NULL) {
2981 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_HTTP_REQ_CNT);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002982 if (!ptr)
2983 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002984 smp->data.uint = stktable_data_cast(ptr, http_req_cnt);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002985 }
2986 return 1;
2987}
2988
Willy Tarreaucf477632013-07-23 16:04:37 +02002989/* set <smp> to the HTTP request rate from the session's tracked frontend
2990 * counters. Supports being called as "sc[0-9]_http_req_rate" or
2991 * "src_http_req_rate" only.
2992 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02002993static int
Willy Tarreaucf477632013-07-23 16:04:37 +02002994smp_fetch_sc_http_req_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2995 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02002996{
Willy Tarreaucf477632013-07-23 16:04:37 +02002997 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2998
2999 if (!stkctr)
3000 return 0;
3001
Willy Tarreau37406352012-04-23 16:16:37 +02003002 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003003 smp->type = SMP_T_UINT;
3004 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003005 if (stkctr_entry(stkctr) != NULL) {
3006 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_HTTP_REQ_RATE);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003007 if (!ptr)
3008 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003009 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, http_req_rate),
Willy Tarreaucf477632013-07-23 16:04:37 +02003010 stkctr->table->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003011 }
3012 return 1;
3013}
3014
Willy Tarreau30d07c32013-07-23 16:45:38 +02003015/* set <smp> to the cumulated number of HTTP requests errors from the session's
3016 * tracked frontend counters. Supports being called as "sc[0-9]_http_err_cnt" or
3017 * "src_http_err_cnt" only.
3018 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02003019static int
Willy Tarreau30d07c32013-07-23 16:45:38 +02003020smp_fetch_sc_http_err_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3021 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02003022{
Willy Tarreau30d07c32013-07-23 16:45:38 +02003023 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3024
3025 if (!stkctr)
3026 return 0;
3027
Willy Tarreau37406352012-04-23 16:16:37 +02003028 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003029 smp->type = SMP_T_UINT;
3030 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003031 if (stkctr_entry(stkctr) != NULL) {
3032 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_HTTP_ERR_CNT);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003033 if (!ptr)
3034 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003035 smp->data.uint = stktable_data_cast(ptr, http_err_cnt);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003036 }
3037 return 1;
3038}
3039
Willy Tarreau9daf2622013-07-23 16:48:54 +02003040/* set <smp> to the HTTP request error rate from the session's tracked frontend
3041 * counters. Supports being called as "sc[0-9]_http_err_rate" or
3042 * "src_http_err_rate" only.
3043 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02003044static int
Willy Tarreau9daf2622013-07-23 16:48:54 +02003045smp_fetch_sc_http_err_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3046 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02003047{
Willy Tarreau9daf2622013-07-23 16:48:54 +02003048 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3049
3050 if (!stkctr)
3051 return 0;
3052
Willy Tarreau37406352012-04-23 16:16:37 +02003053 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003054 smp->type = SMP_T_UINT;
3055 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003056 if (stkctr_entry(stkctr) != NULL) {
3057 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_HTTP_ERR_RATE);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003058 if (!ptr)
3059 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003060 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, http_err_rate),
Willy Tarreau9daf2622013-07-23 16:48:54 +02003061 stkctr->table->data_arg[STKTABLE_DT_HTTP_ERR_RATE].u);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003062 }
3063 return 1;
3064}
3065
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003066/* set <smp> to the number of kbytes received from clients, as found in the
3067 * session's tracked frontend counters. Supports being called as
3068 * "sc[0-9]_kbytes_in" or "src_kbytes_in" only.
3069 */
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003070static int
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003071smp_fetch_sc_kbytes_in(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3072 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003073{
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003074 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3075
3076 if (!stkctr)
3077 return 0;
3078
Willy Tarreau37406352012-04-23 16:16:37 +02003079 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003080 smp->type = SMP_T_UINT;
3081 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003082 if (stkctr_entry(stkctr) != NULL) {
3083 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_IN_CNT);
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003084 if (!ptr)
3085 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003086 smp->data.uint = stktable_data_cast(ptr, bytes_in_cnt) >> 10;
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003087 }
3088 return 1;
3089}
3090
Willy Tarreau613fe992013-07-23 17:39:19 +02003091/* set <smp> to the data rate received from clients in bytes/s, as found
3092 * in the session's tracked frontend counters. Supports being called as
3093 * "sc[0-9]_bytes_in_rate" or "src_bytes_in_rate" only.
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003094 */
3095static int
Willy Tarreau613fe992013-07-23 17:39:19 +02003096smp_fetch_sc_bytes_in_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3097 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003098{
Willy Tarreau613fe992013-07-23 17:39:19 +02003099 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3100
3101 if (!stkctr)
3102 return 0;
3103
Willy Tarreau37406352012-04-23 16:16:37 +02003104 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003105 smp->type = SMP_T_UINT;
3106 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003107 if (stkctr_entry(stkctr) != NULL) {
3108 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_IN_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003109 if (!ptr)
3110 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003111 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, bytes_in_rate),
Willy Tarreau613fe992013-07-23 17:39:19 +02003112 stkctr->table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003113 }
3114 return 1;
3115}
3116
Willy Tarreau53aea102013-07-23 17:39:02 +02003117/* set <smp> to the number of kbytes sent to clients, as found in the
3118 * session's tracked frontend counters. Supports being called as
3119 * "sc[0-9]_kbytes_out" or "src_kbytes_out" only.
3120 */
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003121static int
Willy Tarreau53aea102013-07-23 17:39:02 +02003122smp_fetch_sc_kbytes_out(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3123 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003124{
Willy Tarreau53aea102013-07-23 17:39:02 +02003125 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3126
3127 if (!stkctr)
3128 return 0;
3129
Willy Tarreau37406352012-04-23 16:16:37 +02003130 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003131 smp->type = SMP_T_UINT;
3132 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003133 if (stkctr_entry(stkctr) != NULL) {
3134 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_OUT_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003135 if (!ptr)
3136 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003137 smp->data.uint = stktable_data_cast(ptr, bytes_out_cnt) >> 10;
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003138 }
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003139 return 1;
3140}
3141
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003142/* set <smp> to the data rate sent to clients in bytes/s, as found in the
3143 * session's tracked frontend counters. Supports being called as
3144 * "sc[0-9]_bytes_out_rate" or "src_bytes_out_rate" only.
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003145 */
3146static int
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003147smp_fetch_sc_bytes_out_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3148 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003149{
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003150 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3151
3152 if (!stkctr)
3153 return 0;
3154
Willy Tarreau37406352012-04-23 16:16:37 +02003155 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003156 smp->type = SMP_T_UINT;
3157 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003158 if (stkctr_entry(stkctr) != NULL) {
3159 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_OUT_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003160 if (!ptr)
3161 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003162 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, bytes_out_rate),
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003163 stkctr->table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003164 }
3165 return 1;
3166}
3167
Willy Tarreau563eef42013-07-23 18:32:02 +02003168/* set <smp> to the number of active trackers on the SC entry in the session's
3169 * tracked frontend counters. Supports being called as "sc[0-9]_trackers" only.
3170 */
Willy Tarreau2406db42012-12-09 12:16:43 +01003171static int
Willy Tarreau563eef42013-07-23 18:32:02 +02003172smp_fetch_sc_trackers(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02003173 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau2406db42012-12-09 12:16:43 +01003174{
Willy Tarreau563eef42013-07-23 18:32:02 +02003175 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
Willy Tarreau2406db42012-12-09 12:16:43 +01003176
Willy Tarreau563eef42013-07-23 18:32:02 +02003177 if (!stkctr)
Willy Tarreau2406db42012-12-09 12:16:43 +01003178 return 0;
3179
Willy Tarreau563eef42013-07-23 18:32:02 +02003180 smp->flags = SMP_F_VOL_TEST;
3181 smp->type = SMP_T_UINT;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003182 smp->data.uint = stkctr_entry(stkctr)->ref_cnt;
Willy Tarreau563eef42013-07-23 18:32:02 +02003183 return 1;
Willy Tarreaue25c9172013-05-28 18:32:20 +02003184}
3185
Willy Tarreau34db1082012-04-19 17:16:54 +02003186/* set temp integer to the number of used entries in the table pointed to by expr.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02003187 * Accepts exactly 1 argument of type table.
Willy Tarreau34db1082012-04-19 17:16:54 +02003188 */
Willy Tarreauc735a072011-03-29 00:57:02 +02003189static int
Willy Tarreau281c7992013-01-08 01:23:27 +01003190smp_fetch_table_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02003191 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc735a072011-03-29 00:57:02 +02003192{
Willy Tarreau37406352012-04-23 16:16:37 +02003193 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003194 smp->type = SMP_T_UINT;
Willy Tarreau24e32d82012-04-23 23:55:44 +02003195 smp->data.uint = args->data.prx->table.current;
Willy Tarreauc735a072011-03-29 00:57:02 +02003196 return 1;
3197}
3198
Willy Tarreau34db1082012-04-19 17:16:54 +02003199/* set temp integer to the number of free entries in the table pointed to by expr.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02003200 * Accepts exactly 1 argument of type table.
Willy Tarreau34db1082012-04-19 17:16:54 +02003201 */
Willy Tarreauc735a072011-03-29 00:57:02 +02003202static int
Willy Tarreau281c7992013-01-08 01:23:27 +01003203smp_fetch_table_avl(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02003204 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc735a072011-03-29 00:57:02 +02003205{
Willy Tarreau24e32d82012-04-23 23:55:44 +02003206 px = args->data.prx;
Willy Tarreau37406352012-04-23 16:16:37 +02003207 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003208 smp->type = SMP_T_UINT;
3209 smp->data.uint = px->table.size - px->table.current;
Willy Tarreauc735a072011-03-29 00:57:02 +02003210 return 1;
3211}
Willy Tarreau8b22a712010-06-18 17:46:06 +02003212
Willy Tarreau61612d42012-04-19 18:42:05 +02003213/* Note: must not be declared <const> as its list will be overwritten.
3214 * Please take care of keeping this list alphabetically sorted.
3215 */
Willy Tarreaudc13c112013-06-21 23:16:39 +02003216static struct acl_kw_list acl_kws = {ILH, {
Willy Tarreau281c7992013-01-08 01:23:27 +01003217 { /* END */ },
Willy Tarreau8b22a712010-06-18 17:46:06 +02003218}};
3219
Willy Tarreau281c7992013-01-08 01:23:27 +01003220/* Note: must not be declared <const> as its list will be overwritten.
3221 * Please take care of keeping this list alphabetically sorted.
3222 */
Willy Tarreaudc13c112013-06-21 23:16:39 +02003223static struct sample_fetch_kw_list smp_fetch_keywords = {ILH, {
Willy Tarreau0f791d42013-07-23 19:56:43 +02003224 { "sc_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3225 { "sc_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3226 { "sc_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3227 { "sc_conn_cnt", smp_fetch_sc_conn_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3228 { "sc_conn_cur", smp_fetch_sc_conn_cur, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3229 { "sc_conn_rate", smp_fetch_sc_conn_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3230 { "sc_get_gpc0", smp_fetch_sc_get_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3231 { "sc_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3232 { "sc_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3233 { "sc_http_err_rate", smp_fetch_sc_http_err_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3234 { "sc_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3235 { "sc_http_req_rate", smp_fetch_sc_http_req_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3236 { "sc_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3237 { "sc_kbytes_in", smp_fetch_sc_kbytes_in, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3238 { "sc_kbytes_out", smp_fetch_sc_kbytes_out, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3239 { "sc_sess_cnt", smp_fetch_sc_sess_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3240 { "sc_sess_rate", smp_fetch_sc_sess_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3241 { "sc_tracked", smp_fetch_sc_tracked, ARG2(1,UINT,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3242 { "sc_trackers", smp_fetch_sc_trackers, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3243 { "sc0_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3244 { "sc0_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3245 { "sc0_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3246 { "sc0_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3247 { "sc0_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3248 { "sc0_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3249 { "sc0_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3250 { "sc0_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3251 { "sc0_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3252 { "sc0_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3253 { "sc0_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3254 { "sc0_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3255 { "sc0_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3256 { "sc0_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3257 { "sc0_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3258 { "sc0_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3259 { "sc0_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3260 { "sc0_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3261 { "sc0_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3262 { "sc1_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3263 { "sc1_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3264 { "sc1_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3265 { "sc1_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3266 { "sc1_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3267 { "sc1_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3268 { "sc1_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3269 { "sc1_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3270 { "sc1_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3271 { "sc1_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3272 { "sc1_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3273 { "sc1_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3274 { "sc1_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3275 { "sc1_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3276 { "sc1_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3277 { "sc1_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3278 { "sc1_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3279 { "sc1_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3280 { "sc1_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3281 { "sc2_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3282 { "sc2_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3283 { "sc2_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3284 { "sc2_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3285 { "sc2_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3286 { "sc2_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3287 { "sc2_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3288 { "sc2_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3289 { "sc2_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3290 { "sc2_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3291 { "sc2_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3292 { "sc2_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3293 { "sc2_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3294 { "sc2_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3295 { "sc2_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3296 { "sc2_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3297 { "sc2_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3298 { "sc2_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3299 { "sc2_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3300 { "src_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3301 { "src_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3302 { "src_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3303 { "src_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3304 { "src_conn_cur", smp_fetch_sc_conn_cur, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3305 { "src_conn_rate", smp_fetch_sc_conn_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3306 { "src_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3307 { "src_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3308 { "src_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3309 { "src_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3310 { "src_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3311 { "src_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3312 { "src_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3313 { "src_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3314 { "src_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3315 { "src_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3316 { "src_sess_rate", smp_fetch_sc_sess_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3317 { "src_updt_conn_cnt", smp_fetch_src_updt_conn_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3318 { "table_avl", smp_fetch_table_avl, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3319 { "table_cnt", smp_fetch_table_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
Willy Tarreau281c7992013-01-08 01:23:27 +01003320 { /* END */ },
3321}};
3322
Willy Tarreau8b22a712010-06-18 17:46:06 +02003323__attribute__((constructor))
3324static void __session_init(void)
3325{
Willy Tarreau281c7992013-01-08 01:23:27 +01003326 sample_register_fetches(&smp_fetch_keywords);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003327 acl_register_keywords(&acl_kws);
3328}
3329
Willy Tarreaubaaee002006-06-26 02:48:02 +02003330/*
3331 * Local variables:
3332 * c-indent-level: 8
3333 * c-basic-offset: 8
3334 * End:
3335 */