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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 Tarreau82569f92012-09-27 23:48:56 +0200151 /* monitor-net and health mode are processed immediately after TCP
152 * connection rules. This way it's possible to block them, but they
153 * never use the lower data layers, they send directly over the socket,
154 * as they were designed for. We first flush the socket receive buffer
155 * in order to avoid emission of an RST by the system. We ignore any
156 * error.
157 */
158 if (unlikely((p->mode == PR_MODE_HEALTH) ||
159 ((l->options & LI_O_CHK_MONNET) &&
160 addr->ss_family == AF_INET &&
161 (((struct sockaddr_in *)addr)->sin_addr.s_addr & p->mon_mask.s_addr) == p->mon_net.s_addr))) {
162 /* we have 4 possibilities here :
163 * - HTTP mode, from monitoring address => send "HTTP/1.0 200 OK"
164 * - HEALTH mode with HTTP check => send "HTTP/1.0 200 OK"
165 * - HEALTH mode without HTTP check => just send "OK"
166 * - TCP mode from monitoring address => just close
167 */
Willy Tarreau2b57cb82013-06-10 19:56:38 +0200168 if (l->proto->drain)
169 l->proto->drain(cfd);
Willy Tarreau82569f92012-09-27 23:48:56 +0200170 if (p->mode == PR_MODE_HTTP ||
171 (p->mode == PR_MODE_HEALTH && (p->options2 & PR_O2_CHK_ANY) == PR_O2_HTTP_CHK))
172 send(cfd, "HTTP/1.0 200 OK\r\n\r\n", 19, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_MORE);
173 else if (p->mode == PR_MODE_HEALTH)
174 send(cfd, "OK\n", 3, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_MORE);
175 ret = 0;
176 goto out_free_session;
177 }
178
Willy Tarreau22cda212012-08-31 17:43:29 +0200179 /* wait for a PROXY protocol header */
180 if (l->options & LI_O_ACC_PROXY) {
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200181 cli_conn->flags |= CO_FL_ACCEPT_PROXY;
182 conn_sock_want_recv(cli_conn);
Willy Tarreau22cda212012-08-31 17:43:29 +0200183 }
184
Willy Tarreau2542b532012-08-31 16:01:23 +0200185 if (unlikely((t = task_new()) == NULL))
186 goto out_free_session;
187
188 t->context = s;
189 t->nice = l->nice;
190 s->task = t;
191
Willy Tarreau59e3ff42013-12-16 02:16:50 +0100192 /* Finish setting the callbacks. Right now the transport layer is present
Willy Tarreauf7bc57c2012-10-03 00:19:48 +0200193 * but not initialized. Also note we need to be careful as the stream
194 * int is not initialized yet.
Willy Tarreau2542b532012-08-31 16:01:23 +0200195 */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200196 conn_data_want_recv(cli_conn);
197 if (conn_xprt_init(cli_conn) < 0)
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100198 goto out_free_task;
Willy Tarreau2542b532012-08-31 16:01:23 +0200199
200 /* OK, now either we have a pending handshake to execute with and
201 * then we must return to the I/O layer, or we can proceed with the
202 * end of the session initialization. In case of handshake, we also
203 * set the I/O timeout to the frontend's client timeout.
204 */
205
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200206 if (cli_conn->flags & CO_FL_HANDSHAKE) {
Willy Tarreau2542b532012-08-31 16:01:23 +0200207 t->process = expire_mini_session;
208 t->expire = tick_add_ifset(now_ms, p->timeout.client);
209 task_queue(t);
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200210 cli_conn->flags |= CO_FL_INIT_DATA | CO_FL_WAKE_DATA;
Willy Tarreau2542b532012-08-31 16:01:23 +0200211 return 1;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200212 }
213
Willy Tarreau815f5ec2012-11-06 00:14:25 +0100214 /* OK let's complete session initialization since there is no handshake */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200215 cli_conn->flags |= CO_FL_CONNECTED;
Willy Tarreau2542b532012-08-31 16:01:23 +0200216 ret = session_complete(s);
217 if (ret > 0)
218 return ret;
219
220 /* Error unrolling */
221 out_free_task:
222 task_free(t);
223 out_free_session:
224 p->feconn--;
Willy Tarreaue9101692014-01-28 22:48:24 +0100225 session_store_counters(s);
Willy Tarreau2542b532012-08-31 16:01:23 +0200226 pool_free2(pool2_session, s);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200227 out_free_conn:
228 cli_conn->flags &= ~CO_FL_XPRT_TRACKED;
229 conn_xprt_close(cli_conn);
230 conn_free(cli_conn);
Willy Tarreau2542b532012-08-31 16:01:23 +0200231 out_close:
Willy Tarreauf7bc57c2012-10-03 00:19:48 +0200232 if (ret < 0 && l->xprt == &raw_sock && p->mode == PR_MODE_HTTP) {
Willy Tarreau2542b532012-08-31 16:01:23 +0200233 /* critical error, no more memory, try to emit a 500 response */
Willy Tarreau05bf5e12013-10-20 23:10:28 +0200234 struct chunk *err_msg = &p->errmsg[HTTP_ERR_500];
235 if (!err_msg->str)
236 err_msg = &http_err_chunks[HTTP_ERR_500];
Willy Tarreau2542b532012-08-31 16:01:23 +0200237 send(cfd, err_msg->str, err_msg->len, MSG_DONTWAIT|MSG_NOSIGNAL);
238 }
239
240 if (fdtab[cfd].owner)
241 fd_delete(cfd);
242 else
243 close(cfd);
244 return ret;
245}
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100246
Willy Tarreau0af29122012-12-03 15:35:00 +0100247
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200248/* prepare the trash with a log prefix for session <s>. It only works with
249 * embryonic sessions based on a real connection.
250 */
Willy Tarreau0af29122012-12-03 15:35:00 +0100251static void prepare_mini_sess_log_prefix(struct session *s)
252{
253 struct tm tm;
254 char pn[INET6_ADDRSTRLEN];
255 int ret;
256 char *end;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200257 struct connection *cli_conn = __objt_conn(s->target);
Willy Tarreau0af29122012-12-03 15:35:00 +0100258
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200259 ret = addr_to_str(&cli_conn->addr.from, pn, sizeof(pn));
Willy Tarreau0af29122012-12-03 15:35:00 +0100260 if (ret <= 0)
261 chunk_printf(&trash, "unknown [");
262 else if (ret == AF_UNIX)
263 chunk_printf(&trash, "%s:%d [", pn, s->listener->luid);
264 else
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200265 chunk_printf(&trash, "%s:%d [", pn, get_host_port(&cli_conn->addr.from));
Willy Tarreau0af29122012-12-03 15:35:00 +0100266
267 get_localtime(s->logs.accept_date.tv_sec, &tm);
268 end = date2str_log(trash.str + trash.len, &tm, &(s->logs.accept_date), trash.size - trash.len);
269 trash.len = end - trash.str;
270 if (s->listener->name)
271 chunk_appendf(&trash, "] %s/%s", s->fe->id, s->listener->name);
272 else
273 chunk_appendf(&trash, "] %s/%d", s->fe->id, s->listener->luid);
274}
275
Willy Tarreau2542b532012-08-31 16:01:23 +0200276/* This function kills an existing embryonic session. It stops the connection's
Willy Tarreauf7bc57c2012-10-03 00:19:48 +0200277 * transport layer, releases assigned resources, resumes the listener if it was
Willy Tarreau2542b532012-08-31 16:01:23 +0200278 * disabled and finally kills the file descriptor.
279 */
280static void kill_mini_session(struct session *s)
281{
Willy Tarreau0af29122012-12-03 15:35:00 +0100282 int level = LOG_INFO;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200283 struct connection *conn = __objt_conn(s->target);
Willy Tarreau0af29122012-12-03 15:35:00 +0100284 unsigned int log = s->logs.logwait;
285 const char *err_msg;
286
287 if (s->fe->options2 & PR_O2_LOGERRORS)
288 level = LOG_ERR;
289
290 if (log && (s->fe->options & PR_O_NULLNOLOG)) {
291 /* with "option dontlognull", we don't log connections with no transfer */
Willy Tarreau8e3bf692012-12-03 15:41:18 +0100292 if (!conn->err_code ||
Willy Tarreau20879a02012-12-03 16:32:10 +0100293 conn->err_code == CO_ER_PRX_EMPTY || conn->err_code == CO_ER_PRX_ABORT ||
294 conn->err_code == CO_ER_SSL_EMPTY || conn->err_code == CO_ER_SSL_ABORT)
Willy Tarreau0af29122012-12-03 15:35:00 +0100295 log = 0;
296 }
297
298 if (log) {
299 if (!conn->err_code && (s->task->state & TASK_WOKEN_TIMER)) {
300 if (conn->flags & CO_FL_ACCEPT_PROXY)
301 conn->err_code = CO_ER_PRX_TIMEOUT;
302 else if (conn->flags & CO_FL_SSL_WAIT_HS)
303 conn->err_code = CO_ER_SSL_TIMEOUT;
304 }
305
306 prepare_mini_sess_log_prefix(s);
307 err_msg = conn_err_code_str(conn);
308 if (err_msg)
309 send_log(s->fe, level, "%s: %s\n", trash.str, err_msg);
310 else
311 send_log(s->fe, level, "%s: unknown connection error (code=%d flags=%08x)\n",
312 trash.str, conn->err_code, conn->flags);
313 }
314
Willy Tarreau2542b532012-08-31 16:01:23 +0200315 /* kill the connection now */
Willy Tarreauf79c8172013-10-21 16:30:56 +0200316 conn_force_close(conn);
Willy Tarreaua23ee3a2014-02-05 00:18:47 +0100317 conn_free(conn);
Willy Tarreau2542b532012-08-31 16:01:23 +0200318
319 s->fe->feconn--;
Willy Tarreau7af7d592013-07-01 18:07:03 +0200320 session_store_counters(s);
Willy Tarreau2542b532012-08-31 16:01:23 +0200321
322 if (!(s->listener->options & LI_O_UNLIMITED))
323 actconn--;
324 jobs--;
325 s->listener->nbconn--;
326 if (s->listener->state == LI_FULL)
327 resume_listener(s->listener);
328
329 /* Dequeues all of the listeners waiting for a resource */
330 if (!LIST_ISEMPTY(&global_listener_queue))
331 dequeue_all_listeners(&global_listener_queue);
332
333 if (!LIST_ISEMPTY(&s->fe->listener_queue) &&
334 (!s->fe->fe_sps_lim || freq_ctr_remain(&s->fe->fe_sess_per_sec, s->fe->fe_sps_lim, 0) > 0))
335 dequeue_all_listeners(&s->fe->listener_queue);
336
337 task_delete(s->task);
338 task_free(s->task);
Willy Tarreau2542b532012-08-31 16:01:23 +0200339 pool_free2(pool2_session, s);
340}
341
Willy Tarreau22cda212012-08-31 17:43:29 +0200342/* Finish initializing a session from a connection, or kills it if the
343 * connection shows and error. Returns <0 if the connection was killed.
Willy Tarreau2542b532012-08-31 16:01:23 +0200344 */
Willy Tarreau071e1372012-10-03 01:39:48 +0200345static int conn_session_complete(struct connection *conn)
Willy Tarreau2542b532012-08-31 16:01:23 +0200346{
Willy Tarreau5e75e272012-10-02 21:21:20 +0200347 struct session *s = conn->owner;
Willy Tarreau2542b532012-08-31 16:01:23 +0200348
Willy Tarreau22cda212012-08-31 17:43:29 +0200349 if (!(conn->flags & CO_FL_ERROR) && (session_complete(s) > 0)) {
Willy Tarreau071e1372012-10-03 01:39:48 +0200350 conn->flags &= ~CO_FL_INIT_DATA;
Willy Tarreau2542b532012-08-31 16:01:23 +0200351 return 0;
352 }
353
354 /* kill the connection now */
355 kill_mini_session(s);
356 return -1;
357}
358
Willy Tarreau9683e9a2012-10-03 21:17:23 +0200359/* Update an embryonic session status. The connection is killed in case of
360 * error, and <0 will be returned. Otherwise it does nothing.
361 */
362static int conn_session_update(struct connection *conn)
363{
364 if (conn->flags & CO_FL_ERROR) {
365 kill_mini_session(conn->owner);
366 return -1;
367 }
368 return 0;
369}
370
Willy Tarreau2542b532012-08-31 16:01:23 +0200371/* Manages embryonic sessions timeout. It is only called when the timeout
372 * strikes and performs the required cleanup.
373 */
374static struct task *expire_mini_session(struct task *t)
375{
376 struct session *s = t->context;
377
378 if (!(t->state & TASK_WOKEN_TIMER))
379 return t;
380
381 kill_mini_session(s);
382 return NULL;
383}
384
385/* This function is called from the I/O handler which detects the end of
386 * handshake, in order to complete initialization of a valid session. It must
387 * be called with an embryonic session. It returns a positive value upon
388 * success, 0 if the connection can be ignored, or a negative value upon
389 * critical failure. The accepted file descriptor is closed if we return <= 0.
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200390 * The client-side end point is assumed to be a connection.
Willy Tarreau2542b532012-08-31 16:01:23 +0200391 */
392int session_complete(struct session *s)
393{
394 struct listener *l = s->listener;
395 struct proxy *p = s->fe;
396 struct http_txn *txn;
397 struct task *t = s->task;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200398 struct connection *conn = __objt_conn(s->target);
Willy Tarreau2542b532012-08-31 16:01:23 +0200399 int ret;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100400 int i;
Willy Tarreau2542b532012-08-31 16:01:23 +0200401
402 ret = -1; /* assume unrecoverable error by default */
403
404 /* OK, we're keeping the session, so let's properly initialize the session */
405 LIST_ADDQ(&sessions, &s->list);
406 LIST_INIT(&s->back_refs);
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200407
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200408 s->flags |= SN_INITIALIZED;
Willy Tarreau2542b532012-08-31 16:01:23 +0200409 s->unique_id = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200410
411 t->process = l->handler;
412 t->context = s;
413 t->expire = TICK_ETERNITY;
414
415 /* Note: initially, the session's backend points to the frontend.
416 * This changes later when switching rules are executed or
417 * when the default backend is assigned.
418 */
419 s->be = s->fe;
420 s->req = s->rep = NULL; /* will be allocated later */
William Lallemand82fe75c2012-10-23 10:25:10 +0200421 s->comp_algo = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200422
423 /* Let's count a session now */
Willy Tarreaub36b4242010-06-04 20:59:39 +0200424 proxy_inc_fe_sess_ctr(l, p);
Willy Tarreau91c43d72010-06-20 11:19:22 +0200425
Willy Tarreaub4c84932013-07-23 19:15:30 +0200426 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200427 void *ptr;
428
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100429 if (!stkctr_entry(&s->stkctr[i]))
Willy Tarreau20d46a52012-12-09 15:55:40 +0100430 continue;
431
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100432 ptr = stktable_data_ptr(s->stkctr[i].table, stkctr_entry(&s->stkctr[i]), STKTABLE_DT_SESS_CNT);
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200433 if (ptr)
434 stktable_data_cast(ptr, sess_cnt)++;
435
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100436 ptr = stktable_data_ptr(s->stkctr[i].table, stkctr_entry(&s->stkctr[i]), STKTABLE_DT_SESS_RATE);
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200437 if (ptr)
438 update_freq_ctr_period(&stktable_data_cast(ptr, sess_rate),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100439 s->stkctr[i].table->data_arg[STKTABLE_DT_SESS_RATE].u, 1);
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200440 }
441
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200442 /* this part should be common with other protocols */
443 si_reset(&s->si[0], t);
444 si_set_state(&s->si[0], SI_ST_EST);
445
446 /* attach the incoming connection to the stream interface now */
447 si_attach_conn(&s->si[0], conn);
448
449 if (likely(s->fe->options2 & PR_O2_INDEPSTR))
450 s->si[0].flags |= SI_FL_INDEP_STR;
451
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200452 /* pre-initialize the other side's stream interface to an INIT state. The
453 * callbacks will be initialized before attempting to connect.
454 */
Willy Tarreau3ed35ef2013-10-24 11:51:38 +0200455 si_reset(&s->si[1], t);
Willy Tarreau2a6e8802013-10-24 15:50:53 +0200456 si_detach(&s->si[1]);
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200457
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200458 if (likely(s->fe->options2 & PR_O2_INDEPSTR))
459 s->si[1].flags |= SI_FL_INDEP_STR;
460
Willy Tarreau9bd0d742011-07-20 00:17:39 +0200461 session_init_srv_conn(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100462 s->target = NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200463 s->pend_pos = NULL;
464
465 /* init store persistence */
466 s->store_count = 0;
467
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200468 if (unlikely((s->req = pool_alloc2(pool2_channel)) == NULL))
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200469 goto out_free_task; /* no memory */
470
Willy Tarreau9b28e032012-10-12 23:49:43 +0200471 if (unlikely((s->req->buf = pool_alloc2(pool2_buffer)) == NULL))
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200472 goto out_free_req; /* no memory */
473
Willy Tarreau9b28e032012-10-12 23:49:43 +0200474 if (unlikely((s->rep = pool_alloc2(pool2_channel)) == NULL))
475 goto out_free_req_buf; /* no memory */
476
477 if (unlikely((s->rep->buf = pool_alloc2(pool2_buffer)) == NULL))
478 goto out_free_rep; /* no memory */
479
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200480 /* initialize the request buffer */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200481 s->req->buf->size = global.tune.bufsize;
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200482 channel_init(s->req);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200483 s->req->prod = &s->si[0];
484 s->req->cons = &s->si[1];
485 s->si[0].ib = s->si[1].ob = s->req;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200486 s->req->flags |= CF_READ_ATTACHED; /* the producer is already connected */
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200487
488 /* activate default analysers enabled for this listener */
489 s->req->analysers = l->analysers;
490
491 s->req->wto = TICK_ETERNITY;
492 s->req->rto = TICK_ETERNITY;
493 s->req->rex = TICK_ETERNITY;
494 s->req->wex = TICK_ETERNITY;
495 s->req->analyse_exp = TICK_ETERNITY;
496
497 /* initialize response buffer */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200498 s->rep->buf->size = global.tune.bufsize;
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200499 channel_init(s->rep);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200500 s->rep->prod = &s->si[1];
501 s->rep->cons = &s->si[0];
502 s->si[0].ob = s->si[1].ib = s->rep;
503 s->rep->analysers = 0;
504
Willy Tarreau96e31212011-05-30 18:10:30 +0200505 if (s->fe->options2 & PR_O2_NODELAY) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200506 s->req->flags |= CF_NEVER_WAIT;
507 s->rep->flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200508 }
509
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200510 s->rep->rto = TICK_ETERNITY;
511 s->rep->wto = TICK_ETERNITY;
512 s->rep->rex = TICK_ETERNITY;
513 s->rep->wex = TICK_ETERNITY;
514 s->rep->analyse_exp = TICK_ETERNITY;
515
Willy Tarreau62f791e2012-03-09 11:32:30 +0100516 txn = &s->txn;
517 /* Those variables will be checked and freed if non-NULL in
518 * session.c:session_free(). It is important that they are
519 * properly initialized.
520 */
521 txn->sessid = NULL;
522 txn->srv_cookie = NULL;
523 txn->cli_cookie = NULL;
524 txn->uri = NULL;
525 txn->req.cap = NULL;
526 txn->rsp.cap = NULL;
527 txn->hdr_idx.v = NULL;
528 txn->hdr_idx.size = txn->hdr_idx.used = 0;
Willy Tarreau068621e2013-12-23 15:11:25 +0100529 txn->flags = 0;
Willy Tarreau62f791e2012-03-09 11:32:30 +0100530 txn->req.flags = 0;
531 txn->rsp.flags = 0;
532 /* the HTTP messages need to know what buffer they're associated with */
Willy Tarreau394db372012-10-12 22:40:39 +0200533 txn->req.chn = s->req;
534 txn->rsp.chn = s->rep;
Willy Tarreau62f791e2012-03-09 11:32:30 +0100535
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200536 /* finish initialization of the accepted file descriptor */
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200537 conn_data_want_recv(conn);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200538
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100539 if (p->accept && (ret = p->accept(s)) <= 0) {
540 /* Either we had an unrecoverable error (<0) or work is
541 * finished (=0, eg: monitoring), in both situations,
542 * we can release everything and close.
543 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200544 goto out_free_rep_buf;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200545 }
546
Willy Tarreau93dbc2b2012-10-12 18:01:49 +0200547 /* if logs require transport layer information, note it on the connection */
548 if (s->logs.logwait & LW_XPRT)
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200549 conn->flags |= CO_FL_XPRT_TRACKED;
Willy Tarreau93dbc2b2012-10-12 18:01:49 +0200550
Willy Tarreau2542b532012-08-31 16:01:23 +0200551 /* we want the connection handler to notify the stream interface about updates. */
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200552 conn->flags |= CO_FL_WAKE_DATA;
Willy Tarreau2542b532012-08-31 16:01:23 +0200553
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200554 /* it is important not to call the wakeup function directly but to
555 * pass through task_wakeup(), because this one knows how to apply
556 * priorities to tasks.
557 */
558 task_wakeup(t, TASK_WOKEN_INIT);
559 return 1;
560
561 /* Error unrolling */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200562 out_free_rep_buf:
563 pool_free2(pool2_buffer, s->rep->buf);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200564 out_free_rep:
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200565 pool_free2(pool2_channel, s->rep);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200566 out_free_req_buf:
567 pool_free2(pool2_buffer, s->req->buf);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200568 out_free_req:
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200569 pool_free2(pool2_channel, s->req);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200570 out_free_task:
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100571 return ret;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200572}
573
Willy Tarreaubaaee002006-06-26 02:48:02 +0200574/*
575 * frees the context associated to a session. It must have been removed first.
576 */
Simon Hormandec5be42011-06-08 09:19:07 +0900577static void session_free(struct session *s)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200578{
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100579 struct http_txn *txn = &s->txn;
Willy Tarreau632f5a72007-07-11 10:42:35 +0200580 struct proxy *fe = s->fe;
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100581 struct bref *bref, *back;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200582 struct connection *cli_conn = objt_conn(s->si[0].end);
Willy Tarreaua4cda672010-06-06 18:28:49 +0200583 int i;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100584
Willy Tarreaubaaee002006-06-26 02:48:02 +0200585 if (s->pend_pos)
586 pendconn_free(s->pend_pos);
Willy Tarreau922a8062008-12-04 09:33:58 +0100587
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100588 if (objt_server(s->target)) { /* there may be requests left pending in queue */
Willy Tarreau1e62de62008-11-11 20:20:02 +0100589 if (s->flags & SN_CURR_SESS) {
590 s->flags &= ~SN_CURR_SESS;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100591 objt_server(s->target)->cur_sess--;
Willy Tarreau1e62de62008-11-11 20:20:02 +0100592 }
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100593 if (may_dequeue_tasks(objt_server(s->target), s->be))
594 process_srv_queue(objt_server(s->target));
Willy Tarreau1e62de62008-11-11 20:20:02 +0100595 }
Willy Tarreau922a8062008-12-04 09:33:58 +0100596
Willy Tarreau7c669d72008-06-20 15:04:11 +0200597 if (unlikely(s->srv_conn)) {
598 /* the session still has a reserved slot on a server, but
599 * it should normally be only the same as the one above,
600 * so this should not happen in fact.
601 */
602 sess_change_server(s, NULL);
603 }
604
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100605 if (s->req->pipe)
606 put_pipe(s->req->pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100607
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100608 if (s->rep->pipe)
609 put_pipe(s->rep->pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100610
Willy Tarreau9b28e032012-10-12 23:49:43 +0200611 pool_free2(pool2_buffer, s->req->buf);
612 pool_free2(pool2_buffer, s->rep->buf);
613
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200614 pool_free2(pool2_channel, s->req);
615 pool_free2(pool2_channel, s->rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200616
Willy Tarreau46023632010-01-07 22:51:47 +0100617 http_end_txn(s);
618
Willy Tarreau1e954912012-10-12 17:50:05 +0200619 /* ensure the client-side transport layer is destroyed */
Willy Tarreauf79c8172013-10-21 16:30:56 +0200620 if (cli_conn)
621 conn_force_close(cli_conn);
Willy Tarreau1e954912012-10-12 17:50:05 +0200622
Willy Tarreaua4cda672010-06-06 18:28:49 +0200623 for (i = 0; i < s->store_count; i++) {
624 if (!s->store[i].ts)
625 continue;
626 stksess_free(s->store[i].table, s->store[i].ts);
627 s->store[i].ts = NULL;
628 }
629
Willy Tarreau34eb6712011-10-24 18:15:04 +0200630 pool_free2(pool2_hdr_idx, txn->hdr_idx.v);
Willy Tarreau92fb9832007-10-16 17:34:28 +0200631 if (fe) {
Willy Tarreau46023632010-01-07 22:51:47 +0100632 pool_free2(fe->rsp_cap_pool, txn->rsp.cap);
633 pool_free2(fe->req_cap_pool, txn->req.cap);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200634 }
Willy Tarreau0937bc42009-12-22 15:03:09 +0100635
Willy Tarreau7af7d592013-07-01 18:07:03 +0200636 session_store_counters(s);
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +0200637
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100638 list_for_each_entry_safe(bref, back, &s->back_refs, users) {
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100639 /* we have to unlink all watchers. We must not relink them if
640 * this session was the last one in the list.
641 */
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100642 LIST_DEL(&bref->users);
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100643 LIST_INIT(&bref->users);
644 if (s->list.n != &sessions)
645 LIST_ADDQ(&LIST_ELEM(s->list.n, struct session *, list)->back_refs, &bref->users);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100646 bref->ref = s->list.n;
647 }
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100648 LIST_DEL(&s->list);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200649 si_release_endpoint(&s->si[1]);
650 si_release_endpoint(&s->si[0]);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200651 pool_free2(pool2_session, s);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200652
653 /* We may want to free the maximum amount of pools if the proxy is stopping */
Willy Tarreau92fb9832007-10-16 17:34:28 +0200654 if (fe && unlikely(fe->state == PR_STSTOPPED)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200655 pool_flush2(pool2_buffer);
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200656 pool_flush2(pool2_channel);
Willy Tarreau34eb6712011-10-24 18:15:04 +0200657 pool_flush2(pool2_hdr_idx);
Willy Tarreau48d63db2008-08-03 17:41:33 +0200658 pool_flush2(pool2_requri);
659 pool_flush2(pool2_capture);
660 pool_flush2(pool2_session);
661 pool_flush2(fe->req_cap_pool);
662 pool_flush2(fe->rsp_cap_pool);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200663 }
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200664}
665
666
667/* perform minimal intializations, report 0 in case of error, 1 if OK. */
668int init_session()
669{
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100670 LIST_INIT(&sessions);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200671 pool2_session = create_pool("session", sizeof(struct session), MEM_F_SHARED);
672 return pool2_session != NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200673}
674
Willy Tarreau30e71012007-11-26 20:15:35 +0100675void session_process_counters(struct session *s)
676{
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100677 unsigned long long bytes;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100678 void *ptr;
679 int i;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100680
Willy Tarreau30e71012007-11-26 20:15:35 +0100681 if (s->req) {
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100682 bytes = s->req->total - s->logs.bytes_in;
Willy Tarreau30e71012007-11-26 20:15:35 +0100683 s->logs.bytes_in = s->req->total;
684 if (bytes) {
Willy Tarreau20d46a52012-12-09 15:55:40 +0100685 s->fe->fe_counters.bytes_in += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100686
Willy Tarreau20d46a52012-12-09 15:55:40 +0100687 s->be->be_counters.bytes_in += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100688
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100689 if (objt_server(s->target))
Willy Tarreau20d46a52012-12-09 15:55:40 +0100690 objt_server(s->target)->counters.bytes_in += bytes;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200691
Thierry FOURNIERa47a94f2014-03-20 15:42:53 +0100692 if (s->listener && s->listener->counters)
Willy Tarreau20d46a52012-12-09 15:55:40 +0100693 s->listener->counters->bytes_in += bytes;
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200694
Willy Tarreaub4c84932013-07-23 19:15:30 +0200695 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100696 if (!stkctr_entry(&s->stkctr[i]))
Willy Tarreau20d46a52012-12-09 15:55:40 +0100697 continue;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200698
Willy Tarreau20d46a52012-12-09 15:55:40 +0100699 ptr = stktable_data_ptr(s->stkctr[i].table,
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100700 stkctr_entry(&s->stkctr[i]),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100701 STKTABLE_DT_BYTES_IN_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200702 if (ptr)
703 stktable_data_cast(ptr, bytes_in_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200704
Willy Tarreau20d46a52012-12-09 15:55:40 +0100705 ptr = stktable_data_ptr(s->stkctr[i].table,
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100706 stkctr_entry(&s->stkctr[i]),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100707 STKTABLE_DT_BYTES_IN_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200708 if (ptr)
709 update_freq_ctr_period(&stktable_data_cast(ptr, bytes_in_rate),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100710 s->stkctr[i].table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200711 }
Willy Tarreau30e71012007-11-26 20:15:35 +0100712 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100713 }
714
Willy Tarreau30e71012007-11-26 20:15:35 +0100715 if (s->rep) {
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100716 bytes = s->rep->total - s->logs.bytes_out;
Willy Tarreau30e71012007-11-26 20:15:35 +0100717 s->logs.bytes_out = s->rep->total;
718 if (bytes) {
Willy Tarreau20d46a52012-12-09 15:55:40 +0100719 s->fe->fe_counters.bytes_out += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100720
Willy Tarreau20d46a52012-12-09 15:55:40 +0100721 s->be->be_counters.bytes_out += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100722
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100723 if (objt_server(s->target))
Willy Tarreau20d46a52012-12-09 15:55:40 +0100724 objt_server(s->target)->counters.bytes_out += bytes;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200725
Thierry FOURNIERa47a94f2014-03-20 15:42:53 +0100726 if (s->listener && s->listener->counters)
Willy Tarreau20d46a52012-12-09 15:55:40 +0100727 s->listener->counters->bytes_out += bytes;
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200728
Willy Tarreaub4c84932013-07-23 19:15:30 +0200729 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100730 if (!stkctr_entry(&s->stkctr[i]))
Willy Tarreau20d46a52012-12-09 15:55:40 +0100731 continue;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200732
Willy Tarreau20d46a52012-12-09 15:55:40 +0100733 ptr = stktable_data_ptr(s->stkctr[i].table,
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100734 stkctr_entry(&s->stkctr[i]),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100735 STKTABLE_DT_BYTES_OUT_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200736 if (ptr)
737 stktable_data_cast(ptr, bytes_out_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200738
Willy Tarreau20d46a52012-12-09 15:55:40 +0100739 ptr = stktable_data_ptr(s->stkctr[i].table,
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100740 stkctr_entry(&s->stkctr[i]),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100741 STKTABLE_DT_BYTES_OUT_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200742 if (ptr)
743 update_freq_ctr_period(&stktable_data_cast(ptr, bytes_out_rate),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100744 s->stkctr[i].table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200745 }
Willy Tarreau30e71012007-11-26 20:15:35 +0100746 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100747 }
748}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200749
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100750/* This function is called with (si->state == SI_ST_CON) meaning that a
751 * connection was attempted and that the file descriptor is already allocated.
752 * We must check for establishment, error and abort. Possible output states
753 * are SI_ST_EST (established), SI_ST_CER (error), SI_ST_DIS (abort), and
754 * SI_ST_CON (no change). The function returns 0 if it switches to SI_ST_CER,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200755 * otherwise 1. This only works with connection-based sessions.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100756 */
Simon Hormandec5be42011-06-08 09:19:07 +0900757static int sess_update_st_con_tcp(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100758{
Willy Tarreau7421efb2012-07-02 15:11:27 +0200759 struct channel *req = si->ob;
760 struct channel *rep = si->ib;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200761 struct connection *srv_conn = __objt_conn(si->end);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100762
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100763 /* If we got an error, or if nothing happened and the connection timed
764 * out, we must give up. The CER state handler will take care of retry
765 * attempts and error reports.
766 */
767 if (unlikely(si->flags & (SI_FL_EXP|SI_FL_ERR))) {
Willy Tarreaue3224e82012-10-29 22:41:31 +0100768 if (unlikely(si->ob->flags & CF_WRITE_PARTIAL)) {
769 /* Some data were sent past the connection establishment,
770 * so we need to pretend we're established to log correctly
771 * and let later states handle the failure.
772 */
Willy Tarreaue3224e82012-10-29 22:41:31 +0100773 si->state = SI_ST_EST;
774 si->err_type = SI_ET_DATA_ERR;
775 si->ib->flags |= CF_READ_ERROR | CF_WRITE_ERROR;
Willy Tarreaue3224e82012-10-29 22:41:31 +0100776 return 1;
777 }
Willy Tarreau127334e2009-03-28 10:47:26 +0100778 si->exp = TICK_ETERNITY;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100779 si->state = SI_ST_CER;
Willy Tarreau0ede5a32012-12-08 08:44:02 +0100780
Willy Tarreauf79c8172013-10-21 16:30:56 +0200781 conn_force_close(srv_conn);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100782
783 if (si->err_type)
784 return 0;
785
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100786 if (si->flags & SI_FL_ERR)
787 si->err_type = SI_ET_CONN_ERR;
788 else
789 si->err_type = SI_ET_CONN_TO;
790 return 0;
791 }
792
793 /* OK, maybe we want to abort */
Willy Tarreaua7a7ebc2012-12-30 00:50:35 +0100794 if (!(req->flags & CF_WRITE_PARTIAL) &&
795 unlikely((rep->flags & CF_SHUTW) ||
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200796 ((req->flags & CF_SHUTW_NOW) && /* FIXME: this should not prevent a connection from establishing */
797 ((!(req->flags & CF_WRITE_ACTIVITY) && channel_is_empty(req)) ||
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100798 s->be->options & PR_O_ABRT_CLOSE)))) {
799 /* give up */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200800 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100801 si->err_type |= SI_ET_CONN_ABRT;
Willy Tarreau84455332009-03-15 22:34:05 +0100802 if (s->srv_error)
803 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100804 return 1;
805 }
806
807 /* we need to wait a bit more if there was no activity either */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200808 if (!(req->flags & CF_WRITE_ACTIVITY))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100809 return 1;
810
811 /* OK, this means that a connection succeeded. The caller will be
812 * responsible for handling the transition from CON to EST.
813 */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100814 si->state = SI_ST_EST;
815 si->err_type = SI_ET_NONE;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100816 return 1;
817}
818
819/* This function is called with (si->state == SI_ST_CER) meaning that a
820 * previous connection attempt has failed and that the file descriptor
821 * has already been released. Possible causes include asynchronous error
822 * notification and time out. Possible output states are SI_ST_CLO when
823 * retries are exhausted, SI_ST_TAR when a delay is wanted before a new
824 * connection attempt, SI_ST_ASS when it's wise to retry on the same server,
825 * and SI_ST_REQ when an immediate redispatch is wanted. The buffers are
826 * marked as in error state. It returns 0.
827 */
Simon Hormandec5be42011-06-08 09:19:07 +0900828static int sess_update_st_cer(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100829{
830 /* we probably have to release last session from the server */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100831 if (objt_server(s->target)) {
832 health_adjust(objt_server(s->target), HANA_STATUS_L4_ERR);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100833
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100834 if (s->flags & SN_CURR_SESS) {
835 s->flags &= ~SN_CURR_SESS;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100836 objt_server(s->target)->cur_sess--;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100837 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100838 }
839
840 /* ensure that we have enough retries left */
Willy Tarreauee28de02010-06-01 09:51:00 +0200841 si->conn_retries--;
842 if (si->conn_retries < 0) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100843 if (!si->err_type) {
844 si->err_type = SI_ET_CONN_ERR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100845 }
846
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100847 if (objt_server(s->target))
848 objt_server(s->target)->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100849 s->be->be_counters.failed_conns++;
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100850 sess_change_server(s, NULL);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100851 if (may_dequeue_tasks(objt_server(s->target), s->be))
852 process_srv_queue(objt_server(s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100853
854 /* shutw is enough so stop a connecting socket */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200855 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200856 si->ob->flags |= CF_WRITE_ERROR;
857 si->ib->flags |= CF_READ_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100858
859 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100860 if (s->srv_error)
861 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100862 return 0;
863 }
864
865 /* If the "redispatch" option is set on the backend, we are allowed to
866 * retry on another server for the last retry. In order to achieve this,
867 * we must mark the session unassigned, and eventually clear the DIRECT
868 * bit to ignore any persistence cookie. We won't count a retry nor a
869 * redispatch yet, because this will depend on what server is selected.
870 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100871 if (objt_server(s->target) && si->conn_retries == 0 &&
Willy Tarreau4de91492010-01-22 19:10:05 +0100872 s->be->options & PR_O_REDISP && !(s->flags & SN_FORCE_PRST)) {
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100873 sess_change_server(s, NULL);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100874 if (may_dequeue_tasks(objt_server(s->target), s->be))
875 process_srv_queue(objt_server(s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100876
877 s->flags &= ~(SN_DIRECT | SN_ASSIGNED | SN_ADDR_SET);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100878 si->state = SI_ST_REQ;
879 } else {
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100880 if (objt_server(s->target))
881 objt_server(s->target)->counters.retries++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100882 s->be->be_counters.retries++;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100883 si->state = SI_ST_ASS;
884 }
885
886 if (si->flags & SI_FL_ERR) {
887 /* The error was an asynchronous connection error, and we will
888 * likely have to retry connecting to the same server, most
889 * likely leading to the same result. To avoid this, we wait
890 * one second before retrying.
891 */
892
893 if (!si->err_type)
894 si->err_type = SI_ET_CONN_ERR;
895
896 si->state = SI_ST_TAR;
897 si->exp = tick_add(now_ms, MS_TO_TICKS(1000));
898 return 0;
899 }
900 return 0;
901}
902
903/*
904 * This function handles the transition between the SI_ST_CON state and the
Willy Tarreau85e7d002010-05-31 11:57:51 +0200905 * SI_ST_EST state. It must only be called after switching from SI_ST_CON (or
Willy Tarreau26d8c592012-05-07 18:12:14 +0200906 * SI_ST_INI) to SI_ST_EST, but only when a ->proto is defined.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100907 */
Simon Hormandec5be42011-06-08 09:19:07 +0900908static void sess_establish(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100909{
Willy Tarreau7421efb2012-07-02 15:11:27 +0200910 struct channel *req = si->ob;
911 struct channel *rep = si->ib;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100912
Willy Tarreau0e37f1c2013-12-31 23:06:46 +0100913 /* First, centralize the timers information */
914 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
915 si->exp = TICK_ETERNITY;
916
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100917 if (objt_server(s->target))
918 health_adjust(objt_server(s->target), HANA_STATUS_L4_OK);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100919
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100920 if (s->be->mode == PR_MODE_TCP) { /* let's allow immediate data connection in this case */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100921 /* if the user wants to log as soon as possible, without counting
922 * bytes from the server, then this is the right moment. */
Willy Tarreaud79a3b22012-12-28 09:40:16 +0100923 if (!LIST_ISEMPTY(&s->fe->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100924 s->logs.t_close = s->logs.t_connect; /* to get a valid end date */
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100925 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100926 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100927 }
928 else {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100929 s->txn.rsp.msg_state = HTTP_MSG_RPBEFORE;
Willy Tarreaud81ca042013-12-31 22:33:13 +0100930 rep->flags |= CF_READ_DONTWAIT; /* a single read is enough to get response headers */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100931 }
932
Willy Tarreau4e5b8282009-08-16 22:57:50 +0200933 rep->analysers |= s->fe->fe_rsp_ana | s->be->be_rsp_ana;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200934 rep->flags |= CF_READ_ATTACHED; /* producer is now attached */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200935 if (objt_conn(si->end)) {
Willy Tarreaud04e8582010-05-31 12:31:35 +0200936 /* real connections have timeouts */
937 req->wto = s->be->timeout.server;
938 rep->rto = s->be->timeout.server;
939 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100940 req->wex = TICK_ETERNITY;
941}
942
943/* Update stream interface status for input states SI_ST_ASS, SI_ST_QUE, SI_ST_TAR.
944 * Other input states are simply ignored.
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +0100945 * Possible output states are SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ, SI_ST_CON
946 * and SI_ST_EST. Flags must have previously been updated for timeouts and other
947 * conditions.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100948 */
Simon Hormandec5be42011-06-08 09:19:07 +0900949static void sess_update_stream_int(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100950{
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100951 struct server *srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +0100952
Willy Tarreau02d6cfc2012-03-01 18:19:58 +0100953 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 +0100954 now_ms, __FUNCTION__,
955 s,
956 s->req, s->rep,
957 s->req->rex, s->rep->wex,
958 s->req->flags, s->rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200959 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 +0100960
961 if (si->state == SI_ST_ASS) {
962 /* Server assigned to connection request, we have to try to connect now */
963 int conn_err;
964
965 conn_err = connect_server(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100966 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +0100967
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100968 if (conn_err == SN_ERR_NONE) {
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +0100969 /* state = SI_ST_CON or SI_ST_EST now */
Willy Tarreau827aee92011-03-10 16:55:02 +0100970 if (srv)
971 srv_inc_sess_ctr(srv);
Bhaskar Maddalaa20cb852014-02-03 16:26:46 -0500972 if (srv)
973 srv_set_sess_last(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100974 return;
975 }
976
977 /* We have received a synchronous error. We might have to
978 * abort, retry immediately or redispatch.
979 */
980 if (conn_err == SN_ERR_INTERNAL) {
981 if (!si->err_type) {
982 si->err_type = SI_ET_CONN_OTHER;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100983 }
984
Willy Tarreau827aee92011-03-10 16:55:02 +0100985 if (srv)
986 srv_inc_sess_ctr(srv);
987 if (srv)
Bhaskar Maddalaa20cb852014-02-03 16:26:46 -0500988 srv_set_sess_last(srv);
989 if (srv)
Willy Tarreau827aee92011-03-10 16:55:02 +0100990 srv->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100991 s->be->be_counters.failed_conns++;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100992
993 /* release other sessions waiting for this server */
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100994 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +0100995 if (may_dequeue_tasks(srv, s->be))
996 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100997
998 /* Failed and not retryable. */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200999 si_shutr(si);
1000 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001001 si->ob->flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001002
1003 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1004
1005 /* no session was ever accounted for this server */
1006 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001007 if (s->srv_error)
1008 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001009 return;
1010 }
1011
1012 /* We are facing a retryable error, but we don't want to run a
1013 * turn-around now, as the problem is likely a source port
1014 * allocation problem, so we want to retry now.
1015 */
1016 si->state = SI_ST_CER;
1017 si->flags &= ~SI_FL_ERR;
1018 sess_update_st_cer(s, si);
1019 /* now si->state is one of SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ */
1020 return;
1021 }
1022 else if (si->state == SI_ST_QUE) {
1023 /* connection request was queued, check for any update */
1024 if (!s->pend_pos) {
1025 /* The connection is not in the queue anymore. Either
1026 * we have a server connection slot available and we
1027 * go directly to the assigned state, or we need to
1028 * load-balance first and go to the INI state.
1029 */
1030 si->exp = TICK_ETERNITY;
1031 if (unlikely(!(s->flags & SN_ASSIGNED)))
1032 si->state = SI_ST_REQ;
1033 else {
1034 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1035 si->state = SI_ST_ASS;
1036 }
1037 return;
1038 }
1039
1040 /* Connection request still in queue... */
1041 if (si->flags & SI_FL_EXP) {
1042 /* ... and timeout expired */
1043 si->exp = TICK_ETERNITY;
1044 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau827aee92011-03-10 16:55:02 +01001045 if (srv)
1046 srv->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001047 s->be->be_counters.failed_conns++;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001048 si_shutr(si);
1049 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001050 si->ob->flags |= CF_WRITE_TIMEOUT;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001051 if (!si->err_type)
1052 si->err_type = SI_ET_QUEUE_TO;
1053 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001054 if (s->srv_error)
1055 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001056 return;
1057 }
1058
1059 /* Connection remains in queue, check if we have to abort it */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001060 if ((si->ob->flags & (CF_READ_ERROR)) ||
1061 ((si->ob->flags & CF_SHUTW_NOW) && /* empty and client aborted */
Willy Tarreau8e21bb92012-08-24 22:40:29 +02001062 (channel_is_empty(si->ob) || s->be->options & PR_O_ABRT_CLOSE))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001063 /* give up */
1064 si->exp = TICK_ETERNITY;
1065 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau73b013b2012-05-21 16:31:45 +02001066 si_shutr(si);
1067 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001068 si->err_type |= SI_ET_QUEUE_ABRT;
1069 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001070 if (s->srv_error)
1071 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001072 return;
1073 }
1074
1075 /* Nothing changed */
1076 return;
1077 }
1078 else if (si->state == SI_ST_TAR) {
1079 /* Connection request might be aborted */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001080 if ((si->ob->flags & (CF_READ_ERROR)) ||
1081 ((si->ob->flags & CF_SHUTW_NOW) && /* empty and client aborted */
Willy Tarreau8e21bb92012-08-24 22:40:29 +02001082 (channel_is_empty(si->ob) || s->be->options & PR_O_ABRT_CLOSE))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001083 /* give up */
1084 si->exp = TICK_ETERNITY;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001085 si_shutr(si);
1086 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001087 si->err_type |= SI_ET_CONN_ABRT;
1088 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001089 if (s->srv_error)
1090 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001091 return;
1092 }
1093
1094 if (!(si->flags & SI_FL_EXP))
1095 return; /* still in turn-around */
1096
1097 si->exp = TICK_ETERNITY;
1098
1099 /* we keep trying on the same server as long as the session is
1100 * marked "assigned".
1101 * FIXME: Should we force a redispatch attempt when the server is down ?
1102 */
1103 if (s->flags & SN_ASSIGNED)
1104 si->state = SI_ST_ASS;
1105 else
1106 si->state = SI_ST_REQ;
1107 return;
1108 }
1109}
1110
Simon Hormandec5be42011-06-08 09:19:07 +09001111/* Set correct session termination flags in case no analyser has done it. It
1112 * also counts a failed request if the server state has not reached the request
1113 * stage.
1114 */
1115static void sess_set_term_flags(struct session *s)
1116{
1117 if (!(s->flags & SN_FINST_MASK)) {
1118 if (s->si[1].state < SI_ST_REQ) {
1119
1120 s->fe->fe_counters.failed_req++;
1121 if (s->listener->counters)
1122 s->listener->counters->failed_req++;
1123
1124 s->flags |= SN_FINST_R;
1125 }
1126 else if (s->si[1].state == SI_ST_QUE)
1127 s->flags |= SN_FINST_Q;
1128 else if (s->si[1].state < SI_ST_EST)
1129 s->flags |= SN_FINST_C;
1130 else if (s->si[1].state == SI_ST_EST || s->si[1].prev_state == SI_ST_EST)
1131 s->flags |= SN_FINST_D;
1132 else
1133 s->flags |= SN_FINST_L;
1134 }
1135}
1136
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001137/* This function initiates a server connection request on a stream interface
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001138 * already in SI_ST_REQ state. Upon success, the state goes to SI_ST_ASS for
1139 * a real connection to a server, indicating that a server has been assigned,
1140 * or SI_ST_EST for a successful connection to an applet. It may also return
1141 * SI_ST_QUE, or SI_ST_CLO upon error.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001142 */
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001143static void sess_prepare_conn_req(struct session *s, struct stream_interface *si)
1144{
1145 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 +01001146 now_ms, __FUNCTION__,
1147 s,
1148 s->req, s->rep,
1149 s->req->rex, s->rep->wex,
1150 s->req->flags, s->rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001151 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 +01001152
1153 if (si->state != SI_ST_REQ)
1154 return;
1155
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001156 if (unlikely(obj_type(s->target) == OBJ_TYPE_APPLET)) {
1157 /* the applet directly goes to the EST state */
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001158 struct appctx *appctx = objt_appctx(si->end);
1159
1160 if (!appctx || appctx->applet != __objt_applet(s->target))
1161 appctx = stream_int_register_handler(si, objt_applet(s->target));
1162
1163 if (!appctx) {
1164 /* No more memory, let's immediately abort. Force the
1165 * error code to ignore the ERR_LOCAL which is not a
1166 * real error.
1167 */
Willy Tarreau6bbb2f62013-12-09 17:14:23 +01001168 s->flags &= ~(SN_ERR_MASK | SN_FINST_MASK);
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001169
1170 si_shutr(si);
1171 si_shutw(si);
1172 si->ob->flags |= CF_WRITE_ERROR;
Willy Tarreau6bbb2f62013-12-09 17:14:23 +01001173 si->err_type = SI_ET_CONN_RES;
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001174 si->state = SI_ST_CLO;
1175 if (s->srv_error)
1176 s->srv_error(s, si);
1177 return;
1178 }
1179
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001180 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001181 si->state = SI_ST_EST;
1182 si->err_type = SI_ET_NONE;
Willy Tarreaufac4bd12013-11-30 09:21:49 +01001183 /* let sess_establish() finish the job */
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001184 return;
1185 }
1186
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001187 /* Try to assign a server */
1188 if (srv_redispatch_connect(s) != 0) {
1189 /* We did not get a server. Either we queued the
1190 * connection request, or we encountered an error.
1191 */
1192 if (si->state == SI_ST_QUE)
1193 return;
1194
1195 /* we did not get any server, let's check the cause */
Willy Tarreau73b013b2012-05-21 16:31:45 +02001196 si_shutr(si);
1197 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001198 si->ob->flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001199 if (!si->err_type)
1200 si->err_type = SI_ET_CONN_OTHER;
1201 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001202 if (s->srv_error)
1203 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001204 return;
1205 }
1206
1207 /* The server is assigned */
1208 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1209 si->state = SI_ST_ASS;
1210}
1211
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001212/* This stream analyser checks the switching rules and changes the backend
Willy Tarreau4de91492010-01-22 19:10:05 +01001213 * if appropriate. The default_backend rule is also considered, then the
1214 * target backend's forced persistence rules are also evaluated last if any.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001215 * It returns 1 if the processing can continue on next analysers, or zero if it
1216 * either needs more data or wants to immediately abort the request.
1217 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001218static int process_switching_rules(struct session *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001219{
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001220 struct persist_rule *prst_rule;
Willy Tarreau4de91492010-01-22 19:10:05 +01001221
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001222 req->analysers &= ~an_bit;
1223 req->analyse_exp = TICK_ETERNITY;
1224
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001225 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 +02001226 now_ms, __FUNCTION__,
1227 s,
1228 req,
1229 req->rex, req->wex,
1230 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001231 req->buf->i,
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001232 req->analysers);
1233
1234 /* now check whether we have some switching rules for this request */
1235 if (!(s->flags & SN_BE_ASSIGNED)) {
1236 struct switching_rule *rule;
1237
1238 list_for_each_entry(rule, &s->fe->switching_rules, list) {
1239 int ret;
1240
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001241 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 +02001242 ret = acl_pass(ret);
1243 if (rule->cond->pol == ACL_COND_UNLESS)
1244 ret = !ret;
1245
1246 if (ret) {
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001247 /* If the backend name is dynamic, try to resolve the name.
1248 * If we can't resolve the name, or if any error occurs, break
1249 * the loop and fallback to the default backend.
1250 */
1251 struct proxy *backend;
1252
1253 if (rule->dynamic) {
1254 struct chunk *tmp = get_trash_chunk();
1255 if (!build_logline(s, tmp->str, tmp->size, &rule->be.expr))
1256 break;
1257 backend = findproxy(tmp->str, PR_CAP_BE);
1258 if (!backend)
1259 break;
1260 }
1261 else
1262 backend = rule->be.backend;
1263
1264 if (!session_set_backend(s, backend))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001265 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001266 break;
1267 }
1268 }
1269
1270 /* To ensure correct connection accounting on the backend, we
1271 * have to assign one if it was not set (eg: a listen). This
1272 * measure also takes care of correctly setting the default
1273 * backend if any.
1274 */
1275 if (!(s->flags & SN_BE_ASSIGNED))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001276 if (!session_set_backend(s, s->fe->defbe.be ? s->fe->defbe.be : s->be))
1277 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001278 }
1279
Willy Tarreaufb356202010-08-03 14:02:05 +02001280 /* we don't want to run the TCP or HTTP filters again if the backend has not changed */
1281 if (s->fe == s->be) {
1282 s->req->analysers &= ~AN_REQ_INSPECT_BE;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001283 s->req->analysers &= ~AN_REQ_HTTP_PROCESS_BE;
Willy Tarreaufb356202010-08-03 14:02:05 +02001284 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001285
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001286 /* 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 +01001287 * persistence rule, and report that in the session.
1288 */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001289 list_for_each_entry(prst_rule, &s->be->persist_rules, list) {
Willy Tarreau4de91492010-01-22 19:10:05 +01001290 int ret = 1;
1291
1292 if (prst_rule->cond) {
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001293 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 +01001294 ret = acl_pass(ret);
1295 if (prst_rule->cond->pol == ACL_COND_UNLESS)
1296 ret = !ret;
1297 }
1298
1299 if (ret) {
1300 /* no rule, or the rule matches */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001301 if (prst_rule->type == PERSIST_TYPE_FORCE) {
1302 s->flags |= SN_FORCE_PRST;
1303 } else {
1304 s->flags |= SN_IGNORE_PRST;
1305 }
Willy Tarreau4de91492010-01-22 19:10:05 +01001306 break;
1307 }
1308 }
1309
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001310 return 1;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001311
1312 sw_failed:
1313 /* immediately abort this request in case of allocation failure */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001314 channel_abort(s->req);
1315 channel_abort(s->rep);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001316
1317 if (!(s->flags & SN_ERR_MASK))
1318 s->flags |= SN_ERR_RESOURCE;
1319 if (!(s->flags & SN_FINST_MASK))
1320 s->flags |= SN_FINST_R;
1321
1322 s->txn.status = 500;
1323 s->req->analysers = 0;
1324 s->req->analyse_exp = TICK_ETERNITY;
1325 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001326}
1327
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001328/* This stream analyser works on a request. It applies all use-server rules on
1329 * it then returns 1. The data must already be present in the buffer otherwise
1330 * they won't match. It always returns 1.
1331 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001332static int process_server_rules(struct session *s, struct channel *req, int an_bit)
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001333{
1334 struct proxy *px = s->be;
1335 struct server_rule *rule;
1336
1337 DPRINTF(stderr,"[%u] %s: session=%p b=%p, exp(r,w)=%u,%u bf=%08x bl=%d analysers=%02x\n",
1338 now_ms, __FUNCTION__,
1339 s,
1340 req,
1341 req->rex, req->wex,
1342 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001343 req->buf->i + req->buf->o,
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001344 req->analysers);
1345
1346 if (!(s->flags & SN_ASSIGNED)) {
1347 list_for_each_entry(rule, &px->server_rules, list) {
1348 int ret;
1349
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001350 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 +02001351 ret = acl_pass(ret);
1352 if (rule->cond->pol == ACL_COND_UNLESS)
1353 ret = !ret;
1354
1355 if (ret) {
1356 struct server *srv = rule->srv.ptr;
1357
1358 if ((srv->state & SRV_RUNNING) ||
1359 (px->options & PR_O_PERSIST) ||
1360 (s->flags & SN_FORCE_PRST)) {
1361 s->flags |= SN_DIRECT | SN_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001362 s->target = &srv->obj_type;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001363 break;
1364 }
1365 /* if the server is not UP, let's go on with next rules
1366 * just in case another one is suited.
1367 */
1368 }
1369 }
1370 }
1371
1372 req->analysers &= ~an_bit;
1373 req->analyse_exp = TICK_ETERNITY;
1374 return 1;
1375}
1376
Emeric Brun1d33b292010-01-04 15:47:17 +01001377/* This stream analyser works on a request. It applies all sticking rules on
1378 * it then returns 1. The data must already be present in the buffer otherwise
1379 * they won't match. It always returns 1.
1380 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001381static int process_sticking_rules(struct session *s, struct channel *req, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001382{
1383 struct proxy *px = s->be;
1384 struct sticking_rule *rule;
1385
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001386 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 +01001387 now_ms, __FUNCTION__,
1388 s,
1389 req,
1390 req->rex, req->wex,
1391 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001392 req->buf->i,
Emeric Brun1d33b292010-01-04 15:47:17 +01001393 req->analysers);
1394
1395 list_for_each_entry(rule, &px->sticking_rules, list) {
1396 int ret = 1 ;
1397 int i;
1398
Willy Tarreau9667a802013-12-09 12:52:13 +01001399 /* Only the first stick store-request of each table is applied
1400 * and other ones are ignored. The purpose is to allow complex
1401 * configurations which look for multiple entries by decreasing
1402 * order of precision and to stop at the first which matches.
1403 * An example could be a store of the IP address from an HTTP
1404 * header first, then from the source if not found.
1405 */
Emeric Brun1d33b292010-01-04 15:47:17 +01001406 for (i = 0; i < s->store_count; i++) {
1407 if (rule->table.t == s->store[i].table)
1408 break;
1409 }
1410
1411 if (i != s->store_count)
1412 continue;
1413
1414 if (rule->cond) {
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001415 ret = acl_exec_cond(rule->cond, px, s, &s->txn, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001416 ret = acl_pass(ret);
1417 if (rule->cond->pol == ACL_COND_UNLESS)
1418 ret = !ret;
1419 }
1420
1421 if (ret) {
1422 struct stktable_key *key;
1423
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001424 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 +01001425 if (!key)
1426 continue;
1427
1428 if (rule->flags & STK_IS_MATCH) {
1429 struct stksess *ts;
1430
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001431 if ((ts = stktable_lookup_key(rule->table.t, key)) != NULL) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001432 if (!(s->flags & SN_ASSIGNED)) {
1433 struct eb32_node *node;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001434 void *ptr;
Emeric Brun1d33b292010-01-04 15:47:17 +01001435
1436 /* srv found in table */
Willy Tarreau13c29de2010-06-06 16:40:39 +02001437 ptr = stktable_data_ptr(rule->table.t, ts, STKTABLE_DT_SERVER_ID);
1438 node = eb32_lookup(&px->conf.used_server_id, stktable_data_cast(ptr, server_id));
Emeric Brun1d33b292010-01-04 15:47:17 +01001439 if (node) {
1440 struct server *srv;
1441
1442 srv = container_of(node, struct server, conf.id);
Willy Tarreau4de91492010-01-22 19:10:05 +01001443 if ((srv->state & SRV_RUNNING) ||
1444 (px->options & PR_O_PERSIST) ||
1445 (s->flags & SN_FORCE_PRST)) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001446 s->flags |= SN_DIRECT | SN_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001447 s->target = &srv->obj_type;
Emeric Brun1d33b292010-01-04 15:47:17 +01001448 }
1449 }
1450 }
Emeric Brun85e77c72010-09-23 18:16:52 +02001451 stktable_touch(rule->table.t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001452 }
1453 }
1454 if (rule->flags & STK_IS_STORE) {
1455 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
1456 struct stksess *ts;
1457
1458 ts = stksess_new(rule->table.t, key);
1459 if (ts) {
1460 s->store[s->store_count].table = rule->table.t;
1461 s->store[s->store_count++].ts = ts;
1462 }
1463 }
1464 }
1465 }
1466 }
1467
1468 req->analysers &= ~an_bit;
1469 req->analyse_exp = TICK_ETERNITY;
1470 return 1;
1471}
1472
1473/* This stream analyser works on a response. It applies all store rules on it
1474 * then returns 1. The data must already be present in the buffer otherwise
1475 * they won't match. It always returns 1.
1476 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001477static int process_store_rules(struct session *s, struct channel *rep, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001478{
1479 struct proxy *px = s->be;
1480 struct sticking_rule *rule;
1481 int i;
Willy Tarreau9667a802013-12-09 12:52:13 +01001482 int nbreq = s->store_count;
Emeric Brun1d33b292010-01-04 15:47:17 +01001483
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001484 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 +01001485 now_ms, __FUNCTION__,
1486 s,
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001487 rep,
1488 rep->rex, rep->wex,
1489 rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001490 rep->buf->i,
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001491 rep->analysers);
Emeric Brun1d33b292010-01-04 15:47:17 +01001492
1493 list_for_each_entry(rule, &px->storersp_rules, list) {
1494 int ret = 1 ;
Emeric Brun1d33b292010-01-04 15:47:17 +01001495
Willy Tarreau9667a802013-12-09 12:52:13 +01001496 /* Only the first stick store-response of each table is applied
1497 * and other ones are ignored. The purpose is to allow complex
1498 * configurations which look for multiple entries by decreasing
1499 * order of precision and to stop at the first which matches.
1500 * An example could be a store of a set-cookie value, with a
1501 * fallback to a parameter found in a 302 redirect.
1502 *
1503 * The store-response rules are not allowed to override the
1504 * store-request rules for the same table, but they may coexist.
1505 * Thus we can have up to one store-request entry and one store-
1506 * response entry for the same table at any time.
1507 */
1508 for (i = nbreq; i < s->store_count; i++) {
1509 if (rule->table.t == s->store[i].table)
1510 break;
1511 }
1512
1513 /* skip existing entries for this table */
1514 if (i < s->store_count)
1515 continue;
1516
Emeric Brun1d33b292010-01-04 15:47:17 +01001517 if (rule->cond) {
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001518 ret = acl_exec_cond(rule->cond, px, s, &s->txn, SMP_OPT_DIR_RES|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001519 ret = acl_pass(ret);
1520 if (rule->cond->pol == ACL_COND_UNLESS)
1521 ret = !ret;
1522 }
1523
1524 if (ret) {
1525 struct stktable_key *key;
1526
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001527 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 +01001528 if (!key)
1529 continue;
1530
Willy Tarreau37e340c2013-12-06 23:05:21 +01001531 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001532 struct stksess *ts;
1533
1534 ts = stksess_new(rule->table.t, key);
1535 if (ts) {
1536 s->store[s->store_count].table = rule->table.t;
Emeric Brun1d33b292010-01-04 15:47:17 +01001537 s->store[s->store_count++].ts = ts;
1538 }
1539 }
1540 }
1541 }
1542
1543 /* process store request and store response */
1544 for (i = 0; i < s->store_count; i++) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001545 struct stksess *ts;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001546 void *ptr;
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001547
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001548 if (objt_server(s->target) && objt_server(s->target)->state & SRV_NON_STICK) {
Simon Hormanfa461682011-06-25 09:39:49 +09001549 stksess_free(s->store[i].table, s->store[i].ts);
1550 s->store[i].ts = NULL;
1551 continue;
1552 }
1553
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001554 ts = stktable_lookup(s->store[i].table, s->store[i].ts);
1555 if (ts) {
1556 /* the entry already existed, we can free ours */
Emeric Brun85e77c72010-09-23 18:16:52 +02001557 stktable_touch(s->store[i].table, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001558 stksess_free(s->store[i].table, s->store[i].ts);
Emeric Brun1d33b292010-01-04 15:47:17 +01001559 }
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001560 else
Emeric Brun85e77c72010-09-23 18:16:52 +02001561 ts = stktable_store(s->store[i].table, s->store[i].ts, 1);
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001562
1563 s->store[i].ts = NULL;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001564 ptr = stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_ID);
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001565 stktable_data_cast(ptr, server_id) = objt_server(s->target)->puid;
Emeric Brun1d33b292010-01-04 15:47:17 +01001566 }
Willy Tarreau2a164ee2010-06-18 09:57:45 +02001567 s->store_count = 0; /* everything is stored */
Emeric Brun1d33b292010-01-04 15:47:17 +01001568
1569 rep->analysers &= ~an_bit;
1570 rep->analyse_exp = TICK_ETERNITY;
1571 return 1;
1572}
1573
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001574/* This macro is very specific to the function below. See the comments in
1575 * process_session() below to understand the logic and the tests.
1576 */
1577#define UPDATE_ANALYSERS(real, list, back, flag) { \
1578 list = (((list) & ~(flag)) | ~(back)) & (real); \
1579 back = real; \
1580 if (!(list)) \
1581 break; \
1582 if (((list) ^ ((list) & ((list) - 1))) < (flag)) \
1583 continue; \
1584}
1585
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001586/* Processes the client, server, request and response jobs of a session task,
1587 * then puts it back to the wait queue in a clean state, or cleans up its
1588 * resources if it must be deleted. Returns in <next> the date the task wants
1589 * to be woken up, or TICK_ETERNITY. In order not to call all functions for
1590 * nothing too many times, the request and response buffers flags are monitored
1591 * and each function is called only if at least another function has changed at
1592 * least one flag it is interested in.
1593 */
Willy Tarreau26c25062009-03-08 09:38:41 +01001594struct task *process_session(struct task *t)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001595{
Willy Tarreau827aee92011-03-10 16:55:02 +01001596 struct server *srv;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001597 struct session *s = t->context;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001598 unsigned int rqf_last, rpf_last;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001599 unsigned int rq_prod_last, rq_cons_last;
1600 unsigned int rp_cons_last, rp_prod_last;
Willy Tarreau576507f2010-01-07 00:09:04 +01001601 unsigned int req_ana_back;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001602
1603 //DPRINTF(stderr, "%s:%d: cs=%d ss=%d(%d) rqf=0x%08x rpf=0x%08x\n", __FUNCTION__, __LINE__,
1604 // s->si[0].state, s->si[1].state, s->si[1].err_type, s->req->flags, s->rep->flags);
1605
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001606 /* this data may be no longer valid, clear it */
1607 memset(&s->txn.auth, 0, sizeof(s->txn.auth));
1608
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001609 /* This flag must explicitly be set every time */
Willy Tarreaud7ad9f52013-12-31 17:26:25 +01001610 s->req->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
1611 s->rep->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001612
1613 /* Keep a copy of req/rep flags so that we can detect shutdowns */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001614 rqf_last = s->req->flags & ~CF_MASK_ANALYSER;
1615 rpf_last = s->rep->flags & ~CF_MASK_ANALYSER;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001616
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001617 /* we don't want the stream interface functions to recursively wake us up */
1618 if (s->req->prod->owner == t)
1619 s->req->prod->flags |= SI_FL_DONT_WAKE;
1620 if (s->req->cons->owner == t)
1621 s->req->cons->flags |= SI_FL_DONT_WAKE;
1622
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001623 /* 1a: Check for low level timeouts if needed. We just set a flag on
1624 * stream interfaces when their timeouts have expired.
1625 */
1626 if (unlikely(t->state & TASK_WOKEN_TIMER)) {
1627 stream_int_check_timeouts(&s->si[0]);
1628 stream_int_check_timeouts(&s->si[1]);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001629
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001630 /* check channel timeouts, and close the corresponding stream interfaces
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001631 * for future reads or writes. Note: this will also concern upper layers
1632 * but we do not touch any other flag. We must be careful and correctly
1633 * detect state changes when calling them.
1634 */
1635
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001636 channel_check_timeouts(s->req);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001637
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001638 if (unlikely((s->req->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
Willy Tarreau14641402009-12-29 14:49:56 +01001639 s->req->cons->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001640 si_shutw(s->req->cons);
Willy Tarreau14641402009-12-29 14:49:56 +01001641 }
1642
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001643 if (unlikely((s->req->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001644 if (s->req->prod->flags & SI_FL_NOHALF)
1645 s->req->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001646 si_shutr(s->req->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001647 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001648
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001649 channel_check_timeouts(s->rep);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001650
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001651 if (unlikely((s->rep->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
Willy Tarreau14641402009-12-29 14:49:56 +01001652 s->rep->cons->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001653 si_shutw(s->rep->cons);
Willy Tarreau14641402009-12-29 14:49:56 +01001654 }
1655
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001656 if (unlikely((s->rep->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001657 if (s->rep->prod->flags & SI_FL_NOHALF)
1658 s->rep->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001659 si_shutr(s->rep->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001660 }
Willy Tarreau798f4322012-11-08 14:49:17 +01001661
1662 /* Once in a while we're woken up because the task expires. But
1663 * this does not necessarily mean that a timeout has been reached.
1664 * So let's not run a whole session processing if only an expiration
1665 * timeout needs to be refreshed.
1666 */
1667 if (!((s->req->flags | s->rep->flags) &
1668 (CF_SHUTR|CF_READ_ACTIVITY|CF_READ_TIMEOUT|CF_SHUTW|
1669 CF_WRITE_ACTIVITY|CF_WRITE_TIMEOUT|CF_ANA_TIMEOUT)) &&
1670 !((s->si[0].flags | s->si[1].flags) & (SI_FL_EXP|SI_FL_ERR)) &&
1671 ((t->state & TASK_WOKEN_ANY) == TASK_WOKEN_TIMER))
1672 goto update_exp_and_leave;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001673 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001674
1675 /* 1b: check for low-level errors reported at the stream interface.
1676 * First we check if it's a retryable error (in which case we don't
1677 * want to tell the buffer). Otherwise we report the error one level
1678 * upper by setting flags into the buffers. Note that the side towards
1679 * the client cannot have connect (hence retryable) errors. Also, the
1680 * connection setup code must be able to deal with any type of abort.
1681 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001682 srv = objt_server(s->target);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001683 if (unlikely(s->si[0].flags & SI_FL_ERR)) {
1684 if (s->si[0].state == SI_ST_EST || s->si[0].state == SI_ST_DIS) {
Willy Tarreau73b013b2012-05-21 16:31:45 +02001685 si_shutr(&s->si[0]);
1686 si_shutw(&s->si[0]);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001687 stream_int_report_error(&s->si[0]);
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001688 if (!(s->req->analysers) && !(s->rep->analysers)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001689 s->be->be_counters.cli_aborts++;
1690 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001691 if (srv)
1692 srv->counters.cli_aborts++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001693 if (!(s->flags & SN_ERR_MASK))
1694 s->flags |= SN_ERR_CLICL;
1695 if (!(s->flags & SN_FINST_MASK))
1696 s->flags |= SN_FINST_D;
1697 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001698 }
1699 }
1700
1701 if (unlikely(s->si[1].flags & SI_FL_ERR)) {
1702 if (s->si[1].state == SI_ST_EST || s->si[1].state == SI_ST_DIS) {
Willy Tarreau73b013b2012-05-21 16:31:45 +02001703 si_shutr(&s->si[1]);
1704 si_shutw(&s->si[1]);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001705 stream_int_report_error(&s->si[1]);
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001706 s->be->be_counters.failed_resp++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001707 if (srv)
1708 srv->counters.failed_resp++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001709 if (!(s->req->analysers) && !(s->rep->analysers)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001710 s->be->be_counters.srv_aborts++;
1711 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001712 if (srv)
1713 srv->counters.srv_aborts++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001714 if (!(s->flags & SN_ERR_MASK))
1715 s->flags |= SN_ERR_SRVCL;
1716 if (!(s->flags & SN_FINST_MASK))
1717 s->flags |= SN_FINST_D;
1718 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001719 }
1720 /* note: maybe we should process connection errors here ? */
1721 }
1722
1723 if (s->si[1].state == SI_ST_CON) {
1724 /* we were trying to establish a connection on the server side,
1725 * maybe it succeeded, maybe it failed, maybe we timed out, ...
1726 */
1727 if (unlikely(!sess_update_st_con_tcp(s, &s->si[1])))
1728 sess_update_st_cer(s, &s->si[1]);
1729 else if (s->si[1].state == SI_ST_EST)
1730 sess_establish(s, &s->si[1]);
1731
1732 /* state is now one of SI_ST_CON (still in progress), SI_ST_EST
1733 * (established), SI_ST_DIS (abort), SI_ST_CLO (last error),
1734 * SI_ST_ASS/SI_ST_TAR/SI_ST_REQ for retryable errors.
1735 */
1736 }
1737
Willy Tarreau815a9b22010-07-27 17:15:12 +02001738 rq_prod_last = s->si[0].state;
1739 rq_cons_last = s->si[1].state;
1740 rp_cons_last = s->si[0].state;
1741 rp_prod_last = s->si[1].state;
1742
1743 resync_stream_interface:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001744 /* Check for connection closure */
1745
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001746 DPRINTF(stderr,
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001747 "[%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 +01001748 now_ms, __FUNCTION__, __LINE__,
1749 t,
1750 s, s->flags,
1751 s->req, s->rep,
1752 s->req->rex, s->rep->wex,
1753 s->req->flags, s->rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001754 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 +01001755 s->rep->cons->err_type, s->req->cons->err_type,
Willy Tarreauee28de02010-06-01 09:51:00 +02001756 s->req->cons->conn_retries);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001757
1758 /* nothing special to be done on client side */
1759 if (unlikely(s->req->prod->state == SI_ST_DIS))
1760 s->req->prod->state = SI_ST_CLO;
1761
1762 /* When a server-side connection is released, we have to count it and
1763 * check for pending connections on this server.
1764 */
1765 if (unlikely(s->req->cons->state == SI_ST_DIS)) {
1766 s->req->cons->state = SI_ST_CLO;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001767 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01001768 if (srv) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001769 if (s->flags & SN_CURR_SESS) {
1770 s->flags &= ~SN_CURR_SESS;
Willy Tarreau827aee92011-03-10 16:55:02 +01001771 srv->cur_sess--;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001772 }
1773 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001774 if (may_dequeue_tasks(srv, s->be))
1775 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001776 }
1777 }
1778
1779 /*
1780 * Note: of the transient states (REQ, CER, DIS), only REQ may remain
1781 * at this point.
1782 */
1783
Willy Tarreau0be0ef92009-03-08 19:20:25 +01001784 resync_request:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001785 /* Analyse request */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001786 if (((s->req->flags & ~rqf_last) & CF_MASK_ANALYSER) ||
1787 ((s->req->flags ^ rqf_last) & CF_MASK_STATIC) ||
Willy Tarreau815a9b22010-07-27 17:15:12 +02001788 s->si[0].state != rq_prod_last ||
1789 s->si[1].state != rq_cons_last) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001790 unsigned int flags = s->req->flags;
1791
1792 if (s->req->prod->state >= SI_ST_EST) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001793 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001794 unsigned int ana_list;
1795 unsigned int ana_back;
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001796
Willy Tarreau90deb182010-01-07 00:20:41 +01001797 /* it's up to the analysers to stop new connections,
1798 * disable reading or closing. Note: if an analyser
1799 * disables any of these bits, it is responsible for
1800 * enabling them again when it disables itself, so
1801 * that other analysers are called in similar conditions.
1802 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001803 channel_auto_read(s->req);
1804 channel_auto_connect(s->req);
1805 channel_auto_close(s->req);
Willy Tarreauedcf6682008-11-30 23:15:34 +01001806
1807 /* We will call all analysers for which a bit is set in
1808 * s->req->analysers, following the bit order from LSB
1809 * to MSB. The analysers must remove themselves from
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001810 * the list when not needed. Any analyser may return 0
1811 * to break out of the loop, either because of missing
1812 * data to take a decision, or because it decides to
1813 * kill the session. We loop at least once through each
1814 * analyser, and we may loop again if other analysers
1815 * are added in the middle.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001816 *
1817 * We build a list of analysers to run. We evaluate all
1818 * of these analysers in the order of the lower bit to
1819 * the higher bit. This ordering is very important.
1820 * An analyser will often add/remove other analysers,
1821 * including itself. Any changes to itself have no effect
1822 * on the loop. If it removes any other analysers, we
1823 * want those analysers not to be called anymore during
1824 * this loop. If it adds an analyser that is located
1825 * after itself, we want it to be scheduled for being
1826 * processed during the loop. If it adds an analyser
1827 * which is located before it, we want it to switch to
1828 * it immediately, even if it has already been called
1829 * once but removed since.
1830 *
1831 * In order to achieve this, we compare the analyser
1832 * list after the call with a copy of it before the
1833 * call. The work list is fed with analyser bits that
1834 * appeared during the call. Then we compare previous
1835 * work list with the new one, and check the bits that
1836 * appeared. If the lowest of these bits is lower than
1837 * the current bit, it means we have enabled a previous
1838 * analyser and must immediately loop again.
Willy Tarreauedcf6682008-11-30 23:15:34 +01001839 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001840
1841 ana_list = ana_back = s->req->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001842 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001843 /* Warning! ensure that analysers are always placed in ascending order! */
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001844
Willy Tarreaufb356202010-08-03 14:02:05 +02001845 if (ana_list & AN_REQ_INSPECT_FE) {
1846 if (!tcp_inspect_request(s, s->req, AN_REQ_INSPECT_FE))
Willy Tarreauedcf6682008-11-30 23:15:34 +01001847 break;
Willy Tarreaufb356202010-08-03 14:02:05 +02001848 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_INSPECT_FE);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001849 }
Willy Tarreauedcf6682008-11-30 23:15:34 +01001850
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001851 if (ana_list & AN_REQ_WAIT_HTTP) {
Willy Tarreau3a816292009-07-07 10:55:49 +02001852 if (!http_wait_for_request(s, s->req, AN_REQ_WAIT_HTTP))
Willy Tarreaud787e662009-07-07 10:14:51 +02001853 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001854 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_WAIT_HTTP);
Willy Tarreaud787e662009-07-07 10:14:51 +02001855 }
1856
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001857 if (ana_list & AN_REQ_HTTP_PROCESS_FE) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001858 if (!http_process_req_common(s, s->req, AN_REQ_HTTP_PROCESS_FE, s->fe))
1859 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001860 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_PROCESS_FE);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001861 }
1862
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001863 if (ana_list & AN_REQ_SWITCHING_RULES) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001864 if (!process_switching_rules(s, s->req, AN_REQ_SWITCHING_RULES))
1865 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001866 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_SWITCHING_RULES);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001867 }
1868
Willy Tarreaufb356202010-08-03 14:02:05 +02001869 if (ana_list & AN_REQ_INSPECT_BE) {
1870 if (!tcp_inspect_request(s, s->req, AN_REQ_INSPECT_BE))
1871 break;
1872 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_INSPECT_BE);
1873 }
1874
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001875 if (ana_list & AN_REQ_HTTP_PROCESS_BE) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001876 if (!http_process_req_common(s, s->req, AN_REQ_HTTP_PROCESS_BE, s->be))
1877 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001878 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_PROCESS_BE);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001879 }
1880
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001881 if (ana_list & AN_REQ_HTTP_TARPIT) {
Willy Tarreau3a816292009-07-07 10:55:49 +02001882 if (!http_process_tarpit(s, s->req, AN_REQ_HTTP_TARPIT))
Willy Tarreau60b85b02008-11-30 23:28:40 +01001883 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001884 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_TARPIT);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001885 }
Willy Tarreau60b85b02008-11-30 23:28:40 +01001886
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001887 if (ana_list & AN_REQ_SRV_RULES) {
1888 if (!process_server_rules(s, s->req, AN_REQ_SRV_RULES))
1889 break;
1890 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_SRV_RULES);
1891 }
1892
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001893 if (ana_list & AN_REQ_HTTP_INNER) {
Willy Tarreauc465fd72009-08-31 00:17:18 +02001894 if (!http_process_request(s, s->req, AN_REQ_HTTP_INNER))
1895 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001896 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_INNER);
Willy Tarreauc465fd72009-08-31 00:17:18 +02001897 }
1898
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001899 if (ana_list & AN_REQ_HTTP_BODY) {
Willy Tarreau5a8f9472014-04-10 11:16:06 +02001900 if (!http_wait_for_request_body(s, s->req, AN_REQ_HTTP_BODY))
Willy Tarreaud34af782008-11-30 23:36:37 +01001901 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001902 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_BODY);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001903 }
Emeric Brun647caf12009-06-30 17:57:00 +02001904
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001905 if (ana_list & AN_REQ_PRST_RDP_COOKIE) {
Emeric Brun647caf12009-06-30 17:57:00 +02001906 if (!tcp_persist_rdp_cookie(s, s->req, AN_REQ_PRST_RDP_COOKIE))
1907 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001908 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_PRST_RDP_COOKIE);
Emeric Brun647caf12009-06-30 17:57:00 +02001909 }
Willy Tarreaud98cf932009-12-27 22:54:55 +01001910
Emeric Brun1d33b292010-01-04 15:47:17 +01001911 if (ana_list & AN_REQ_STICKING_RULES) {
1912 if (!process_sticking_rules(s, s->req, AN_REQ_STICKING_RULES))
1913 break;
1914 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_STICKING_RULES);
1915 }
1916
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001917 if (ana_list & AN_REQ_HTTP_XFER_BODY) {
Willy Tarreaud98cf932009-12-27 22:54:55 +01001918 if (!http_request_forward_body(s, s->req, AN_REQ_HTTP_XFER_BODY))
1919 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001920 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_XFER_BODY);
Willy Tarreaud98cf932009-12-27 22:54:55 +01001921 }
Willy Tarreaue34070e2010-01-08 00:32:27 +01001922 break;
1923 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001924 }
Willy Tarreau84455332009-03-15 22:34:05 +01001925
Willy Tarreau815a9b22010-07-27 17:15:12 +02001926 rq_prod_last = s->si[0].state;
1927 rq_cons_last = s->si[1].state;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001928 s->req->flags &= ~CF_WAKE_ONCE;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001929 rqf_last = s->req->flags;
1930
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001931 if ((s->req->flags ^ flags) & CF_MASK_STATIC)
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001932 goto resync_request;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001933 }
1934
Willy Tarreau576507f2010-01-07 00:09:04 +01001935 /* we'll monitor the request analysers while parsing the response,
1936 * because some response analysers may indirectly enable new request
1937 * analysers (eg: HTTP keep-alive).
1938 */
1939 req_ana_back = s->req->analysers;
1940
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001941 resync_response:
1942 /* Analyse response */
1943
Willy Tarreaub31c9712012-11-11 23:05:39 +01001944 if (((s->rep->flags & ~rpf_last) & CF_MASK_ANALYSER) ||
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001945 (s->rep->flags ^ rpf_last) & CF_MASK_STATIC ||
Willy Tarreau815a9b22010-07-27 17:15:12 +02001946 s->si[0].state != rp_cons_last ||
1947 s->si[1].state != rp_prod_last) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001948 unsigned int flags = s->rep->flags;
1949
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001950 if ((s->rep->flags & CF_MASK_ANALYSER) &&
Willy Tarreau0499e352010-12-17 07:13:42 +01001951 (s->rep->analysers & AN_REQ_WAIT_HTTP)) {
1952 /* Due to HTTP pipelining, the HTTP request analyser might be waiting
1953 * for some free space in the response buffer, so we might need to call
1954 * it when something changes in the response buffer, but still we pass
1955 * it the request buffer. Note that the SI state might very well still
1956 * be zero due to us returning a flow of redirects!
1957 */
1958 s->rep->analysers &= ~AN_REQ_WAIT_HTTP;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001959 s->req->flags |= CF_WAKE_ONCE;
Willy Tarreau0499e352010-12-17 07:13:42 +01001960 }
1961
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001962 if (s->rep->prod->state >= SI_ST_EST) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001963 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001964 unsigned int ana_list;
1965 unsigned int ana_back;
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001966
Willy Tarreau90deb182010-01-07 00:20:41 +01001967 /* it's up to the analysers to stop disable reading or
1968 * closing. Note: if an analyser disables any of these
1969 * bits, it is responsible for enabling them again when
1970 * it disables itself, so that other analysers are called
1971 * in similar conditions.
1972 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001973 channel_auto_read(s->rep);
1974 channel_auto_close(s->rep);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001975
1976 /* We will call all analysers for which a bit is set in
1977 * s->rep->analysers, following the bit order from LSB
1978 * to MSB. The analysers must remove themselves from
1979 * the list when not needed. Any analyser may return 0
1980 * to break out of the loop, either because of missing
1981 * data to take a decision, or because it decides to
1982 * kill the session. We loop at least once through each
1983 * analyser, and we may loop again if other analysers
1984 * are added in the middle.
1985 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001986
1987 ana_list = ana_back = s->rep->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001988 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001989 /* Warning! ensure that analysers are always placed in ascending order! */
1990
Emeric Brun97679e72010-09-23 17:56:44 +02001991 if (ana_list & AN_RES_INSPECT) {
1992 if (!tcp_inspect_response(s, s->rep, AN_RES_INSPECT))
1993 break;
1994 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_INSPECT);
1995 }
1996
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001997 if (ana_list & AN_RES_WAIT_HTTP) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001998 if (!http_wait_for_response(s, s->rep, AN_RES_WAIT_HTTP))
1999 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002000 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_WAIT_HTTP);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002001 }
2002
Emeric Brun1d33b292010-01-04 15:47:17 +01002003 if (ana_list & AN_RES_STORE_RULES) {
2004 if (!process_store_rules(s, s->rep, AN_RES_STORE_RULES))
2005 break;
2006 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_STORE_RULES);
2007 }
2008
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002009 if (ana_list & AN_RES_HTTP_PROCESS_BE) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002010 if (!http_process_res_common(s, s->rep, AN_RES_HTTP_PROCESS_BE, s->be))
2011 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002012 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_HTTP_PROCESS_BE);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002013 }
Willy Tarreaud98cf932009-12-27 22:54:55 +01002014
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002015 if (ana_list & AN_RES_HTTP_XFER_BODY) {
Willy Tarreaud98cf932009-12-27 22:54:55 +01002016 if (!http_response_forward_body(s, s->rep, AN_RES_HTTP_XFER_BODY))
2017 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002018 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_HTTP_XFER_BODY);
Willy Tarreaud98cf932009-12-27 22:54:55 +01002019 }
Willy Tarreaue34070e2010-01-08 00:32:27 +01002020 break;
2021 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002022 }
2023
Willy Tarreau815a9b22010-07-27 17:15:12 +02002024 rp_cons_last = s->si[0].state;
2025 rp_prod_last = s->si[1].state;
2026 rpf_last = s->rep->flags;
2027
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002028 if ((s->rep->flags ^ flags) & CF_MASK_STATIC)
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002029 goto resync_response;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002030 }
2031
Willy Tarreau576507f2010-01-07 00:09:04 +01002032 /* maybe someone has added some request analysers, so we must check and loop */
2033 if (s->req->analysers & ~req_ana_back)
2034 goto resync_request;
2035
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002036 if ((s->req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0499e352010-12-17 07:13:42 +01002037 goto resync_request;
2038
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002039 /* FIXME: here we should call protocol handlers which rely on
2040 * both buffers.
2041 */
2042
2043
2044 /*
Willy Tarreauae526782010-03-04 20:34:23 +01002045 * Now we propagate unhandled errors to the session. Normally
2046 * we're just in a data phase here since it means we have not
2047 * seen any analyser who could set an error status.
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002048 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002049 srv = objt_server(s->target);
Willy Tarreau2f976e12010-11-11 14:28:47 +01002050 if (unlikely(!(s->flags & SN_ERR_MASK))) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002051 if (s->req->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002052 /* Report it if the client got an error or a read timeout expired */
Willy Tarreau84455332009-03-15 22:34:05 +01002053 s->req->analysers = 0;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002054 if (s->req->flags & CF_READ_ERROR) {
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_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002060 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002061 else if (s->req->flags & CF_READ_TIMEOUT) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002062 s->be->be_counters.cli_aborts++;
2063 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002064 if (srv)
2065 srv->counters.cli_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002066 s->flags |= SN_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01002067 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002068 else if (s->req->flags & CF_WRITE_ERROR) {
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_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002074 }
2075 else {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002076 s->be->be_counters.srv_aborts++;
2077 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002078 if (srv)
2079 srv->counters.srv_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002080 s->flags |= SN_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002081 }
Willy Tarreau84455332009-03-15 22:34:05 +01002082 sess_set_term_flags(s);
2083 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002084 else if (s->rep->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002085 /* Report it if the server got an error or a read timeout expired */
2086 s->rep->analysers = 0;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002087 if (s->rep->flags & CF_READ_ERROR) {
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_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002093 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002094 else if (s->rep->flags & CF_READ_TIMEOUT) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002095 s->be->be_counters.srv_aborts++;
2096 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002097 if (srv)
2098 srv->counters.srv_aborts++;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002099 s->flags |= SN_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002100 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002101 else if (s->rep->flags & CF_WRITE_ERROR) {
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 Tarreau3deb3d02009-06-21 22:43:05 +02002106 s->flags |= SN_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002107 }
2108 else {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002109 s->be->be_counters.cli_aborts++;
2110 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002111 if (srv)
2112 srv->counters.cli_aborts++;
Willy Tarreauae526782010-03-04 20:34:23 +01002113 s->flags |= SN_ERR_CLITO;
2114 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002115 sess_set_term_flags(s);
2116 }
Willy Tarreau84455332009-03-15 22:34:05 +01002117 }
2118
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002119 /*
2120 * Here we take care of forwarding unhandled data. This also includes
2121 * connection establishments and shutdown requests.
2122 */
2123
2124
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002125 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002126 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002127 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002128 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002129 */
Willy Tarreau2b028dd2013-12-31 23:56:46 +01002130 if (unlikely(!s->req->analysers &&
Willy Tarreaub31c9712012-11-11 23:05:39 +01002131 !(s->req->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau31971e52009-09-20 12:07:52 +02002132 (s->req->prod->state >= SI_ST_EST) &&
Willy Tarreau2b028dd2013-12-31 23:56:46 +01002133 (s->req->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002134 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002135 * attached to it. If any data are left in, we'll permit them to
2136 * move.
2137 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002138 channel_auto_read(s->req);
2139 channel_auto_connect(s->req);
2140 channel_auto_close(s->req);
Willy Tarreau9b28e032012-10-12 23:49:43 +02002141 buffer_flush(s->req->buf);
Willy Tarreau5bd8c372009-01-19 00:32:22 +01002142
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002143 /* We'll let data flow between the producer (if still connected)
2144 * to the consumer (which might possibly not be connected yet).
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002145 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002146 if (!(s->req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002147 channel_forward(s->req, CHN_INFINITE_FORWARD);
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002148 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002149
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002150 /* check if it is wise to enable kernel splicing to forward request data */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002151 if (!(s->req->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002152 s->req->to_forward &&
2153 (global.tune.options & GTUNE_USE_SPLICE) &&
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002154 (objt_conn(s->si[0].end) && __objt_conn(s->si[0].end)->xprt && __objt_conn(s->si[0].end)->xprt->rcv_pipe) &&
2155 (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 +01002156 (pipes_used < global.maxpipes) &&
2157 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_REQ) ||
2158 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002159 (s->req->flags & CF_STREAMER_FAST)))) {
2160 s->req->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002161 }
2162
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002163 /* reflect what the L7 analysers have seen last */
2164 rqf_last = s->req->flags;
2165
2166 /*
2167 * Now forward all shutdown requests between both sides of the buffer
2168 */
2169
Willy Tarreau520d95e2009-09-19 21:04:57 +02002170 /* first, let's check if the request buffer needs to shutdown(write), which may
2171 * happen either because the input is closed or because we want to force a close
Willy Tarreaue4599762010-03-21 23:25:09 +01002172 * once the server has begun to respond.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002173 */
Willy Tarreaub31c9712012-11-11 23:05:39 +01002174 if (unlikely((s->req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002175 (CF_AUTO_CLOSE|CF_SHUTR)))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002176 channel_shutw_now(s->req);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002177
2178 /* shutdown(write) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002179 if (unlikely((s->req->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
Willy Tarreau8615c2a2013-06-21 08:20:19 +02002180 channel_is_empty(s->req))) {
2181 if (s->req->flags & CF_READ_ERROR)
2182 s->req->cons->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02002183 si_shutw(s->req->cons);
Willy Tarreau8615c2a2013-06-21 08:20:19 +02002184 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002185
2186 /* shutdown(write) done on server side, we must stop the client too */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002187 if (unlikely((s->req->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW &&
Willy Tarreau3dbc6942008-12-07 13:05:04 +01002188 !s->req->analysers))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002189 channel_shutr_now(s->req);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002190
2191 /* shutdown(read) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002192 if (unlikely((s->req->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002193 if (s->req->prod->flags & SI_FL_NOHALF)
2194 s->req->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02002195 si_shutr(s->req->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002196 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002197
Willy Tarreau520d95e2009-09-19 21:04:57 +02002198 /* it's possible that an upper layer has requested a connection setup or abort.
2199 * There are 2 situations where we decide to establish a new connection :
2200 * - there are data scheduled for emission in the buffer
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002201 * - the CF_AUTO_CONNECT flag is set (active connection)
Willy Tarreau520d95e2009-09-19 21:04:57 +02002202 */
2203 if (s->req->cons->state == SI_ST_INI) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002204 if (!(s->req->flags & CF_SHUTW)) {
2205 if ((s->req->flags & CF_AUTO_CONNECT) || !channel_is_empty(s->req)) {
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002206 /* If we have an appctx, there is no connect method, so we
2207 * immediately switch to the connected state, otherwise we
2208 * perform a connection request.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002209 */
Willy Tarreau85e7d002010-05-31 11:57:51 +02002210 s->req->cons->state = SI_ST_REQ; /* new connection requested */
Willy Tarreau070ceb62010-06-01 10:36:43 +02002211 s->req->cons->conn_retries = s->be->conn_retries;
Willy Tarreau520d95e2009-09-19 21:04:57 +02002212 }
Willy Tarreau73201222009-08-16 18:27:24 +02002213 }
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002214 else {
Willy Tarreau92795622009-03-06 12:51:23 +01002215 s->req->cons->state = SI_ST_CLO; /* shutw+ini = abort */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002216 channel_shutw_now(s->req); /* fix buffer flags upon abort */
2217 channel_shutr_now(s->rep);
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002218 }
Willy Tarreau92795622009-03-06 12:51:23 +01002219 }
2220
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002221
2222 /* we may have a pending connection request, or a connection waiting
2223 * for completion.
2224 */
2225 if (s->si[1].state >= SI_ST_REQ && s->si[1].state < SI_ST_CON) {
2226 do {
2227 /* nb: step 1 might switch from QUE to ASS, but we first want
2228 * to give a chance to step 2 to perform a redirect if needed.
2229 */
2230 if (s->si[1].state != SI_ST_REQ)
2231 sess_update_stream_int(s, &s->si[1]);
Willy Tarreaub44c8732013-12-31 23:16:50 +01002232 if (s->si[1].state == SI_ST_REQ)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002233 sess_prepare_conn_req(s, &s->si[1]);
2234
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +01002235 /* applets directly go to the ESTABLISHED state. Similarly,
2236 * servers experience the same fate when their connection
2237 * is reused.
2238 */
Willy Tarreaub44c8732013-12-31 23:16:50 +01002239 if (unlikely(s->si[1].state == SI_ST_EST))
2240 sess_establish(s, &s->si[1]);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01002241
Willy Tarreaub44c8732013-12-31 23:16:50 +01002242 /* Now we can add the server name to a header (if requested) */
2243 /* check for HTTP mode and proxy server_name_hdr_name != NULL */
2244 if ((s->si[1].state >= SI_ST_CON) &&
2245 (s->be->server_id_hdr_name != NULL) &&
2246 (s->be->mode == PR_MODE_HTTP) &&
2247 objt_server(s->target)) {
2248 http_send_name_header(&s->txn, s->be, objt_server(s->target)->id);
Willy Tarreau1e5dfda2013-04-07 18:19:16 +02002249 }
2250
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002251 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01002252 if (s->si[1].state == SI_ST_ASS && srv && srv->rdr_len && (s->flags & SN_REDIRECTABLE))
Willy Tarreau71241ab2012-12-27 11:30:54 +01002253 http_perform_server_redirect(s, &s->si[1]);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002254 } while (s->si[1].state == SI_ST_ASS);
2255 }
2256
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002257 /* Benchmarks have shown that it's optimal to do a full resync now */
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002258 if (s->req->prod->state == SI_ST_DIS || s->req->cons->state == SI_ST_DIS)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002259 goto resync_stream_interface;
2260
Willy Tarreau815a9b22010-07-27 17:15:12 +02002261 /* otherwise we want to check if we need to resync the req buffer or not */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002262 if ((s->req->flags ^ rqf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002263 goto resync_request;
2264
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002265 /* perform output updates to the response buffer */
Willy Tarreau84455332009-03-15 22:34:05 +01002266
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002267 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002268 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002269 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002270 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002271 */
Willy Tarreau2b028dd2013-12-31 23:56:46 +01002272 if (unlikely(!s->rep->analysers &&
Willy Tarreaub31c9712012-11-11 23:05:39 +01002273 !(s->rep->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau31971e52009-09-20 12:07:52 +02002274 (s->rep->prod->state >= SI_ST_EST) &&
Willy Tarreau2b028dd2013-12-31 23:56:46 +01002275 (s->rep->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002276 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002277 * attached to it. If any data are left in, we'll permit them to
2278 * move.
2279 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002280 channel_auto_read(s->rep);
2281 channel_auto_close(s->rep);
Willy Tarreau9b28e032012-10-12 23:49:43 +02002282 buffer_flush(s->rep->buf);
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002283
2284 /* We'll let data flow between the producer (if still connected)
2285 * to the consumer.
2286 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002287 if (!(s->rep->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002288 channel_forward(s->rep, CHN_INFINITE_FORWARD);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002289
2290 /* if we have no analyser anymore in any direction and have a
2291 * tunnel timeout set, use it now.
2292 */
2293 if (!s->req->analysers && s->be->timeout.tunnel) {
2294 s->req->rto = s->req->wto = s->rep->rto = s->rep->wto =
2295 s->be->timeout.tunnel;
2296 s->req->rex = s->req->wex = s->rep->rex = s->rep->wex =
2297 tick_add(now_ms, s->be->timeout.tunnel);
2298 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002299 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002300
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002301 /* check if it is wise to enable kernel splicing to forward response data */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002302 if (!(s->rep->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002303 s->rep->to_forward &&
2304 (global.tune.options & GTUNE_USE_SPLICE) &&
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002305 (objt_conn(s->si[0].end) && __objt_conn(s->si[0].end)->xprt && __objt_conn(s->si[0].end)->xprt->snd_pipe) &&
2306 (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 +01002307 (pipes_used < global.maxpipes) &&
2308 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_RTR) ||
2309 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002310 (s->rep->flags & CF_STREAMER_FAST)))) {
2311 s->rep->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002312 }
2313
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002314 /* reflect what the L7 analysers have seen last */
2315 rpf_last = s->rep->flags;
2316
2317 /*
2318 * Now forward all shutdown requests between both sides of the buffer
2319 */
2320
2321 /*
2322 * FIXME: this is probably where we should produce error responses.
2323 */
2324
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002325 /* first, let's check if the response buffer needs to shutdown(write) */
Willy Tarreaub31c9712012-11-11 23:05:39 +01002326 if (unlikely((s->rep->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002327 (CF_AUTO_CLOSE|CF_SHUTR)))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002328 channel_shutw_now(s->rep);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002329
2330 /* shutdown(write) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002331 if (unlikely((s->rep->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
Willy Tarreau8e21bb92012-08-24 22:40:29 +02002332 channel_is_empty(s->rep)))
Willy Tarreau73b013b2012-05-21 16:31:45 +02002333 si_shutw(s->rep->cons);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002334
2335 /* shutdown(write) done on the client side, we must stop the server too */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002336 if (unlikely((s->rep->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW) &&
Willy Tarreau3dbc6942008-12-07 13:05:04 +01002337 !s->rep->analysers)
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002338 channel_shutr_now(s->rep);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002339
2340 /* shutdown(read) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002341 if (unlikely((s->rep->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002342 if (s->rep->prod->flags & SI_FL_NOHALF)
2343 s->rep->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02002344 si_shutr(s->rep->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002345 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002346
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002347 if (s->req->prod->state == SI_ST_DIS || s->req->cons->state == SI_ST_DIS)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002348 goto resync_stream_interface;
2349
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002350 if (s->req->flags != rqf_last)
2351 goto resync_request;
2352
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002353 if ((s->rep->flags ^ rpf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002354 goto resync_response;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002355
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002356 /* we're interested in getting wakeups again */
2357 s->req->prod->flags &= ~SI_FL_DONT_WAKE;
2358 s->req->cons->flags &= ~SI_FL_DONT_WAKE;
2359
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002360 /* This is needed only when debugging is enabled, to indicate
2361 * client-side or server-side close. Please note that in the unlikely
2362 * event where both sides would close at once, the sequence is reported
2363 * on the server side first.
2364 */
2365 if (unlikely((global.mode & MODE_DEBUG) &&
2366 (!(global.mode & MODE_QUIET) ||
2367 (global.mode & MODE_VERBOSE)))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002368 if (s->si[1].state == SI_ST_CLO &&
2369 s->si[1].prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002370 chunk_printf(&trash, "%08x:%s.srvcls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002371 s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002372 objt_conn(s->si[0].end) ? (unsigned short)objt_conn(s->si[0].end)->t.sock.fd : -1,
2373 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 +01002374 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002375 }
2376
2377 if (s->si[0].state == SI_ST_CLO &&
2378 s->si[0].prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002379 chunk_printf(&trash, "%08x:%s.clicls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002380 s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002381 objt_conn(s->si[0].end) ? (unsigned short)objt_conn(s->si[0].end)->t.sock.fd : -1,
2382 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 +01002383 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002384 }
2385 }
2386
2387 if (likely((s->rep->cons->state != SI_ST_CLO) ||
2388 (s->req->cons->state > SI_ST_INI && s->req->cons->state < SI_ST_CLO))) {
2389
2390 if ((s->fe->options & PR_O_CONTSTATS) && (s->flags & SN_BE_ASSIGNED))
2391 session_process_counters(s);
2392
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002393 if (s->rep->cons->state == SI_ST_EST && obj_type(s->rep->cons->end) != OBJ_TYPE_APPCTX)
Willy Tarreau73b013b2012-05-21 16:31:45 +02002394 si_update(s->rep->cons);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002395
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002396 if (s->req->cons->state == SI_ST_EST && obj_type(s->req->cons->end) != OBJ_TYPE_APPCTX)
Willy Tarreau73b013b2012-05-21 16:31:45 +02002397 si_update(s->req->cons);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002398
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002399 s->req->flags &= ~(CF_READ_NULL|CF_READ_PARTIAL|CF_WRITE_NULL|CF_WRITE_PARTIAL|CF_READ_ATTACHED);
2400 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 +01002401 s->si[0].prev_state = s->si[0].state;
2402 s->si[1].prev_state = s->si[1].state;
Willy Tarreaub0ef7352008-12-14 13:26:20 +01002403 s->si[0].flags &= ~(SI_FL_ERR|SI_FL_EXP);
2404 s->si[1].flags &= ~(SI_FL_ERR|SI_FL_EXP);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002405
2406 /* Trick: if a request is being waiting for the server to respond,
2407 * and if we know the server can timeout, we don't want the timeout
2408 * to expire on the client side first, but we're still interested
2409 * in passing data from the client to the server (eg: POST). Thus,
2410 * we can cancel the client's request timeout if the server's
2411 * request timeout is set and the server has not yet sent a response.
2412 */
2413
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002414 if ((s->rep->flags & (CF_AUTO_CLOSE|CF_SHUTR)) == 0 &&
Willy Tarreau86491c32008-12-14 09:04:47 +01002415 (tick_isset(s->req->wex) || tick_isset(s->rep->rex))) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002416 s->req->flags |= CF_READ_NOEXP;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002417 s->req->rex = TICK_ETERNITY;
Willy Tarreau86491c32008-12-14 09:04:47 +01002418 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002419
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002420 /* When any of the stream interfaces is attached to an applet,
2421 * we have to call it here. Note that this one may wake the
2422 * task up again. If at least one applet was called, the current
2423 * task might have been woken up, in which case we don't want it
2424 * to be requeued to the wait queue but rather to the run queue
2425 * to run ASAP. The bitwise "or" in the condition ensures that
2426 * both functions are always called and that we wake up if at
2427 * least one did something.
Willy Tarreau1accfc02009-09-05 20:57:35 +02002428 */
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002429 if ((si_applet_call(s->req->cons) | si_applet_call(s->rep->cons)) != 0) {
Willy Tarreau1accfc02009-09-05 20:57:35 +02002430 if (task_in_rq(t)) {
Willy Tarreau1accfc02009-09-05 20:57:35 +02002431 t->expire = TICK_ETERNITY;
2432 return t;
2433 }
2434 }
2435
Willy Tarreau798f4322012-11-08 14:49:17 +01002436 update_exp_and_leave:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002437 t->expire = tick_first(tick_first(s->req->rex, s->req->wex),
2438 tick_first(s->rep->rex, s->rep->wex));
2439 if (s->req->analysers)
2440 t->expire = tick_first(t->expire, s->req->analyse_exp);
2441
2442 if (s->si[0].exp)
2443 t->expire = tick_first(t->expire, s->si[0].exp);
2444
2445 if (s->si[1].exp)
2446 t->expire = tick_first(t->expire, s->si[1].exp);
2447
2448#ifdef DEBUG_FULL
Willy Tarreau127334e2009-03-28 10:47:26 +01002449 fprintf(stderr,
2450 "[%u] queuing with exp=%u req->rex=%u req->wex=%u req->ana_exp=%u"
2451 " rep->rex=%u rep->wex=%u, si[0].exp=%u, si[1].exp=%u, cs=%d, ss=%d\n",
2452 now_ms, t->expire, s->req->rex, s->req->wex, s->req->analyse_exp,
2453 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 +01002454#endif
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002455
2456#ifdef DEBUG_DEV
2457 /* this may only happen when no timeout is set or in case of an FSM bug */
Willy Tarreaud0a201b2009-03-08 15:53:06 +01002458 if (!tick_isset(t->expire))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002459 ABORT_NOW();
2460#endif
Willy Tarreau26c25062009-03-08 09:38:41 +01002461 return t; /* nothing more to do */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002462 }
2463
2464 s->fe->feconn--;
2465 if (s->flags & SN_BE_ASSIGNED)
2466 s->be->beconn--;
Willy Tarreauaf7ad002010-08-31 15:39:26 +02002467 jobs--;
Thierry FOURNIERa47a94f2014-03-20 15:42:53 +01002468 if (s->listener) {
2469 if (!(s->listener->options & LI_O_UNLIMITED))
2470 actconn--;
2471 s->listener->nbconn--;
2472 if (s->listener->state == LI_FULL)
2473 resume_listener(s->listener);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002474
Thierry FOURNIERa47a94f2014-03-20 15:42:53 +01002475 /* Dequeues all of the listeners waiting for a resource */
2476 if (!LIST_ISEMPTY(&global_listener_queue))
2477 dequeue_all_listeners(&global_listener_queue);
Willy Tarreau08ceb102011-07-24 22:58:00 +02002478
Thierry FOURNIERa47a94f2014-03-20 15:42:53 +01002479 if (!LIST_ISEMPTY(&s->fe->listener_queue) &&
2480 (!s->fe->fe_sps_lim || freq_ctr_remain(&s->fe->fe_sess_per_sec, s->fe->fe_sps_lim, 0) > 0))
2481 dequeue_all_listeners(&s->fe->listener_queue);
2482 }
Willy Tarreau07687c12011-07-24 23:55:06 +02002483
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002484 if (unlikely((global.mode & MODE_DEBUG) &&
2485 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)))) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002486 chunk_printf(&trash, "%08x:%s.closed[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002487 s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002488 objt_conn(s->si[0].end) ? (unsigned short)objt_conn(s->si[0].end)->t.sock.fd : -1,
2489 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 +01002490 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002491 }
2492
2493 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
2494 session_process_counters(s);
2495
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002496 if (s->txn.status) {
2497 int n;
2498
2499 n = s->txn.status / 100;
2500 if (n < 1 || n > 5)
2501 n = 0;
2502
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002503 if (s->fe->mode == PR_MODE_HTTP) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002504 s->fe->fe_counters.p.http.rsp[n]++;
Willy Tarreau8139b992012-11-27 07:35:31 +01002505 if (s->comp_algo && (s->flags & SN_COMP_READY))
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002506 s->fe->fe_counters.p.http.comp_rsp++;
2507 }
Willy Tarreau24657792010-02-26 10:30:28 +01002508 if ((s->flags & SN_BE_ASSIGNED) &&
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002509 (s->be->mode == PR_MODE_HTTP)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002510 s->be->be_counters.p.http.rsp[n]++;
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002511 s->be->be_counters.p.http.cum_req++;
Willy Tarreau8139b992012-11-27 07:35:31 +01002512 if (s->comp_algo && (s->flags & SN_COMP_READY))
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002513 s->be->be_counters.p.http.comp_rsp++;
2514 }
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002515 }
2516
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002517 /* let's do a final log if we need it */
Willy Tarreaud79a3b22012-12-28 09:40:16 +01002518 if (!LIST_ISEMPTY(&s->fe->logformat) && s->logs.logwait &&
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002519 !(s->flags & SN_MONITOR) &&
2520 (!(s->fe->options & PR_O_NULLNOLOG) || s->req->total)) {
Willy Tarreaua5555ec2008-11-30 19:02:32 +01002521 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002522 }
2523
2524 /* the task MUST not be in the run queue anymore */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002525 session_free(s);
Willy Tarreau26c25062009-03-08 09:38:41 +01002526 task_delete(t);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002527 task_free(t);
Willy Tarreau26c25062009-03-08 09:38:41 +01002528 return NULL;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002529}
2530
Willy Tarreau7c669d72008-06-20 15:04:11 +02002531/*
2532 * This function adjusts sess->srv_conn and maintains the previous and new
2533 * server's served session counts. Setting newsrv to NULL is enough to release
2534 * current connection slot. This function also notifies any LB algo which might
2535 * expect to be informed about any change in the number of active sessions on a
2536 * server.
2537 */
2538void sess_change_server(struct session *sess, struct server *newsrv)
2539{
2540 if (sess->srv_conn == newsrv)
2541 return;
2542
2543 if (sess->srv_conn) {
2544 sess->srv_conn->served--;
2545 if (sess->srv_conn->proxy->lbprm.server_drop_conn)
2546 sess->srv_conn->proxy->lbprm.server_drop_conn(sess->srv_conn);
Simon Hormanaf514952011-06-21 14:34:57 +09002547 session_del_srv_conn(sess);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002548 }
2549
2550 if (newsrv) {
2551 newsrv->served++;
2552 if (newsrv->proxy->lbprm.server_take_conn)
2553 newsrv->proxy->lbprm.server_take_conn(newsrv);
Simon Hormanaf514952011-06-21 14:34:57 +09002554 session_add_srv_conn(sess, newsrv);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002555 }
2556}
2557
Willy Tarreau84455332009-03-15 22:34:05 +01002558/* Handle server-side errors for default protocols. It is called whenever a a
2559 * connection setup is aborted or a request is aborted in queue. It sets the
2560 * session termination flags so that the caller does not have to worry about
2561 * them. It's installed as ->srv_error for the server-side stream_interface.
2562 */
2563void default_srv_error(struct session *s, struct stream_interface *si)
2564{
2565 int err_type = si->err_type;
2566 int err = 0, fin = 0;
2567
2568 if (err_type & SI_ET_QUEUE_ABRT) {
2569 err = SN_ERR_CLICL;
2570 fin = SN_FINST_Q;
2571 }
2572 else if (err_type & SI_ET_CONN_ABRT) {
2573 err = SN_ERR_CLICL;
2574 fin = SN_FINST_C;
2575 }
2576 else if (err_type & SI_ET_QUEUE_TO) {
2577 err = SN_ERR_SRVTO;
2578 fin = SN_FINST_Q;
2579 }
2580 else if (err_type & SI_ET_QUEUE_ERR) {
2581 err = SN_ERR_SRVCL;
2582 fin = SN_FINST_Q;
2583 }
2584 else if (err_type & SI_ET_CONN_TO) {
2585 err = SN_ERR_SRVTO;
2586 fin = SN_FINST_C;
2587 }
2588 else if (err_type & SI_ET_CONN_ERR) {
2589 err = SN_ERR_SRVCL;
2590 fin = SN_FINST_C;
2591 }
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002592 else if (err_type & SI_ET_CONN_RES) {
2593 err = SN_ERR_RESOURCE;
2594 fin = SN_FINST_C;
2595 }
Willy Tarreau84455332009-03-15 22:34:05 +01002596 else /* SI_ET_CONN_OTHER and others */ {
2597 err = SN_ERR_INTERNAL;
2598 fin = SN_FINST_C;
2599 }
2600
2601 if (!(s->flags & SN_ERR_MASK))
2602 s->flags |= err;
2603 if (!(s->flags & SN_FINST_MASK))
2604 s->flags |= fin;
2605}
Willy Tarreau7c669d72008-06-20 15:04:11 +02002606
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002607/* kill a session and set the termination flags to <why> (one of SN_ERR_*) */
2608void session_shutdown(struct session *session, int why)
2609{
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002610 if (session->req->flags & (CF_SHUTW|CF_SHUTW_NOW))
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002611 return;
2612
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002613 channel_shutw_now(session->req);
2614 channel_shutr_now(session->rep);
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002615 session->task->nice = 1024;
2616 if (!(session->flags & SN_ERR_MASK))
2617 session->flags |= why;
2618 task_wakeup(session->task, TASK_WOKEN_OTHER);
2619}
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02002620
Willy Tarreau8b22a712010-06-18 17:46:06 +02002621/************************************************************************/
2622/* All supported ACL keywords must be declared here. */
2623/************************************************************************/
2624
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002625/* Returns a pointer to a stkctr depending on the fetch keyword name.
2626 * It is designed to be called as sc[0-9]_* sc_* or src_* exclusively.
Willy Tarreaua65536c2013-07-22 22:40:11 +02002627 * sc[0-9]_* will return a pointer to the respective field in the
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002628 * session <l4>. sc_* requires an UINT argument specifying the stick
2629 * counter number. src_* will fill a locally allocated structure with
Willy Tarreaua65536c2013-07-22 22:40:11 +02002630 * the table and entry corresponding to what is specified with src_*.
Willy Tarreau0f791d42013-07-23 19:56:43 +02002631 * NULL may be returned if the designated stkctr is not tracked. For
2632 * the sc_* and sc[0-9]_* forms, an optional table argument may be
2633 * passed. When present, the currently tracked key is then looked up
2634 * in the specified table instead of the current table. The purpose is
2635 * to be able to convery multiple values per key (eg: have gpc0 from
2636 * multiple tables).
Willy Tarreaua65536c2013-07-22 22:40:11 +02002637 */
2638static struct stkctr *
2639smp_fetch_sc_stkctr(struct session *l4, const struct arg *args, const char *kw)
2640{
2641 static struct stkctr stkctr;
Willy Tarreau6a0b6bd2014-04-09 13:25:42 +02002642 struct stksess *stksess;
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002643 unsigned int num = kw[2] - '0';
Willy Tarreau0f791d42013-07-23 19:56:43 +02002644 int arg = 0;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002645
Willy Tarreau0f791d42013-07-23 19:56:43 +02002646 if (num == '_' - '0') {
2647 /* sc_* variant, args[0] = ctr# (mandatory) */
2648 num = args[arg++].data.uint;
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002649 if (num >= MAX_SESS_STKCTR)
2650 return NULL;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002651 }
Willy Tarreau0f791d42013-07-23 19:56:43 +02002652 else if (num > 9) { /* src_* variant, args[0] = table */
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002653 struct stktable_key *key;
2654 struct connection *conn = objt_conn(l4->si[0].end);
2655
2656 if (!conn)
2657 return NULL;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002658
Thierry FOURNIER74c219d2014-04-14 14:35:40 +02002659 key = addr_to_stktable_key(&conn->addr.from, args->data.prx->table.type);
Willy Tarreaua65536c2013-07-22 22:40:11 +02002660 if (!key)
2661 return NULL;
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002662
Willy Tarreaua65536c2013-07-22 22:40:11 +02002663 stkctr.table = &args->data.prx->table;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002664 stkctr_set_entry(&stkctr, stktable_lookup_key(stkctr.table, key));
Willy Tarreaua65536c2013-07-22 22:40:11 +02002665 return &stkctr;
2666 }
Willy Tarreau0f791d42013-07-23 19:56:43 +02002667
2668 /* Here, <num> contains the counter number from 0 to 9 for
2669 * the sc[0-9]_ form, or even higher using sc_(num) if needed.
2670 * args[arg] is the first optional argument.
2671 */
Willy Tarreau6a0b6bd2014-04-09 13:25:42 +02002672 stksess = stkctr_entry(&l4->stkctr[num]);
2673 if (!stksess)
2674 return NULL;
2675
Willy Tarreau0f791d42013-07-23 19:56:43 +02002676 if (unlikely(args[arg].type == ARGT_TAB)) {
2677 /* an alternate table was specified, let's look up the same key there */
2678 stkctr.table = &args[arg].data.prx->table;
Willy Tarreau6a0b6bd2014-04-09 13:25:42 +02002679 stkctr_set_entry(&stkctr, stktable_lookup(stkctr.table, stksess));
Willy Tarreau0f791d42013-07-23 19:56:43 +02002680 return &stkctr;
2681 }
Willy Tarreau6a0b6bd2014-04-09 13:25:42 +02002682 return &l4->stkctr[num];
Willy Tarreaua65536c2013-07-22 22:40:11 +02002683}
2684
Willy Tarreau88821242013-07-22 18:29:29 +02002685/* set return a boolean indicating if the requested session counter is
2686 * currently being tracked or not.
2687 * Supports being called as "sc[0-9]_tracked" only.
2688 */
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002689static int
Willy Tarreau88821242013-07-22 18:29:29 +02002690smp_fetch_sc_tracked(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02002691 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002692{
2693 smp->flags = SMP_F_VOL_TEST;
2694 smp->type = SMP_T_BOOL;
Thierry FOURNIERd988f212014-04-15 01:15:52 +02002695 smp->data.uint = !!smp_fetch_sc_stkctr(l4, args, kw);
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002696 return 1;
2697}
2698
Willy Tarreau30b20462013-07-22 19:46:52 +02002699/* set <smp> to the General Purpose Counter 0 value from the session's tracked
2700 * frontend counters or from the src.
2701 * Supports being called as "sc[0-9]_get_gpc0" or "src_get_gpc0" only. Value
2702 * zero is returned if the key is new.
2703 */
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002704static int
Willy Tarreau30b20462013-07-22 19:46:52 +02002705smp_fetch_sc_get_gpc0(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2706 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002707{
Willy Tarreau30b20462013-07-22 19:46:52 +02002708 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2709
2710 if (!stkctr)
2711 return 0;
2712
Willy Tarreau37406352012-04-23 16:16:37 +02002713 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002714 smp->type = SMP_T_UINT;
2715 smp->data.uint = 0;
Willy Tarreau30b20462013-07-22 19:46:52 +02002716
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002717 if (stkctr_entry(stkctr) != NULL) {
2718 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0);
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002719 if (!ptr)
2720 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002721 smp->data.uint = stktable_data_cast(ptr, gpc0);
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002722 }
2723 return 1;
2724}
2725
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002726/* set <smp> to the General Purpose Counter 0's event rate from the session's
2727 * tracked frontend counters or from the src.
2728 * Supports being called as "sc[0-9]_gpc0_rate" or "src_gpc0_rate" only.
2729 * Value zero is returned if the key is new.
2730 */
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002731static int
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002732smp_fetch_sc_gpc0_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2733 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002734{
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002735 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2736
2737 if (!stkctr)
2738 return 0;
2739
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002740 smp->flags = SMP_F_VOL_TEST;
2741 smp->type = SMP_T_UINT;
2742 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002743 if (stkctr_entry(stkctr) != NULL) {
2744 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0_RATE);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002745 if (!ptr)
2746 return 0; /* parameter not stored */
2747 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, gpc0_rate),
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002748 stkctr->table->data_arg[STKTABLE_DT_GPC0_RATE].u);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002749 }
2750 return 1;
2751}
2752
Willy Tarreau710d38c2013-07-23 00:07:04 +02002753/* Increment the General Purpose Counter 0 value from the session's tracked
2754 * frontend counters and return it into temp integer.
2755 * Supports being called as "sc[0-9]_inc_gpc0" or "src_inc_gpc0" only.
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002756 */
2757static int
Willy Tarreau710d38c2013-07-23 00:07:04 +02002758smp_fetch_sc_inc_gpc0(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2759 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002760{
Willy Tarreau710d38c2013-07-23 00:07:04 +02002761 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2762
2763 if (!stkctr)
2764 return 0;
2765
Willy Tarreau37406352012-04-23 16:16:37 +02002766 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002767 smp->type = SMP_T_UINT;
2768 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002769 if (stkctr_entry(stkctr) != NULL) {
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002770 void *ptr;
2771
2772 /* First, update gpc0_rate if it's tracked. Second, update its
2773 * gpc0 if tracked. Returns gpc0's value otherwise the curr_ctr.
2774 */
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002775 ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0_RATE);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002776 if (ptr) {
2777 update_freq_ctr_period(&stktable_data_cast(ptr, gpc0_rate),
Willy Tarreau710d38c2013-07-23 00:07:04 +02002778 stkctr->table->data_arg[STKTABLE_DT_GPC0_RATE].u, 1);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002779 smp->data.uint = (&stktable_data_cast(ptr, gpc0_rate))->curr_ctr;
2780 }
2781
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002782 ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002783 if (ptr)
2784 smp->data.uint = ++stktable_data_cast(ptr, gpc0);
2785
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002786 }
2787 return 1;
2788}
2789
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002790/* Clear the General Purpose Counter 0 value from the session's tracked
2791 * frontend counters and return its previous value into temp integer.
2792 * Supports being called as "sc[0-9]_clr_gpc0" or "src_clr_gpc0" only.
Willy Tarreauf73cd112011-08-13 01:45:16 +02002793 */
2794static int
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002795smp_fetch_sc_clr_gpc0(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2796 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauf73cd112011-08-13 01:45:16 +02002797{
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002798 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2799
2800 if (!stkctr)
2801 return 0;
2802
Willy Tarreau37406352012-04-23 16:16:37 +02002803 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002804 smp->type = SMP_T_UINT;
2805 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002806 if (stkctr_entry(stkctr) != NULL) {
2807 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0);
Willy Tarreauf73cd112011-08-13 01:45:16 +02002808 if (!ptr)
2809 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002810 smp->data.uint = stktable_data_cast(ptr, gpc0);
Willy Tarreauf73cd112011-08-13 01:45:16 +02002811 stktable_data_cast(ptr, gpc0) = 0;
2812 }
2813 return 1;
2814}
2815
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002816/* set <smp> to the cumulated number of connections from the session's tracked
2817 * frontend counters. Supports being called as "sc[0-9]_conn_cnt" or
2818 * "src_conn_cnt" only.
2819 */
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002820static int
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002821smp_fetch_sc_conn_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2822 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002823{
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002824 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2825
2826 if (!stkctr)
2827 return 0;
2828
Willy Tarreau37406352012-04-23 16:16:37 +02002829 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002830 smp->type = SMP_T_UINT;
2831 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002832 if (stkctr_entry(stkctr) != NULL) {
2833 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_CONN_CNT);
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002834 if (!ptr)
2835 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002836 smp->data.uint = stktable_data_cast(ptr, conn_cnt);
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002837 }
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002838 return 1;
2839}
2840
Willy Tarreauc8c65702013-07-23 15:09:35 +02002841/* set <smp> to the connection rate from the session's tracked frontend
2842 * counters. Supports being called as "sc[0-9]_conn_rate" or "src_conn_rate"
2843 * only.
2844 */
Willy Tarreau91c43d72010-06-20 11:19:22 +02002845static int
Willy Tarreauc8c65702013-07-23 15:09:35 +02002846smp_fetch_sc_conn_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2847 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau91c43d72010-06-20 11:19:22 +02002848{
Willy Tarreauc8c65702013-07-23 15:09:35 +02002849 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2850
2851 if (!stkctr)
2852 return 0;
2853
Willy Tarreau37406352012-04-23 16:16:37 +02002854 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002855 smp->type = SMP_T_UINT;
2856 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002857 if (stkctr_entry(stkctr) != NULL) {
2858 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_CONN_RATE);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002859 if (!ptr)
2860 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002861 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, conn_rate),
Willy Tarreauc8c65702013-07-23 15:09:35 +02002862 stkctr->table->data_arg[STKTABLE_DT_CONN_RATE].u);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002863 }
2864 return 1;
2865}
2866
Willy Tarreaua5e37562011-12-16 17:06:15 +01002867/* set temp integer to the number of connections from the session's source address
Willy Tarreau8b22a712010-06-18 17:46:06 +02002868 * in the table pointed to by expr, after updating it.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02002869 * Accepts exactly 1 argument of type table.
Willy Tarreau8b22a712010-06-18 17:46:06 +02002870 */
2871static int
Willy Tarreau281c7992013-01-08 01:23:27 +01002872smp_fetch_src_updt_conn_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02002873 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau8b22a712010-06-18 17:46:06 +02002874{
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002875 struct connection *conn = objt_conn(l4->si[0].end);
Willy Tarreau8b22a712010-06-18 17:46:06 +02002876 struct stksess *ts;
2877 struct stktable_key *key;
2878 void *ptr;
2879
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002880 if (!conn)
2881 return 0;
2882
Thierry FOURNIER74c219d2014-04-14 14:35:40 +02002883 key = addr_to_stktable_key(&conn->addr.from, px->table.type);
Willy Tarreau8b22a712010-06-18 17:46:06 +02002884 if (!key)
David du Colombier4f92d322011-03-24 11:09:31 +01002885 return 0;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002886
Willy Tarreau24e32d82012-04-23 23:55:44 +02002887 px = args->data.prx;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002888
Willy Tarreau1f7e9252010-06-20 12:27:21 +02002889 if ((ts = stktable_update_key(&px->table, key)) == NULL)
2890 /* entry does not exist and could not be created */
2891 return 0;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002892
2893 ptr = stktable_data_ptr(&px->table, ts, STKTABLE_DT_CONN_CNT);
2894 if (!ptr)
2895 return 0; /* parameter not stored in this table */
2896
Willy Tarreauf853c462012-04-23 18:53:56 +02002897 smp->type = SMP_T_UINT;
2898 smp->data.uint = ++stktable_data_cast(ptr, conn_cnt);
Willy Tarreau37406352012-04-23 16:16:37 +02002899 smp->flags = SMP_F_VOL_TEST;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002900 return 1;
2901}
2902
Willy Tarreauf44a5532013-07-23 15:17:53 +02002903/* set <smp> to the number of concurrent connections from the session's tracked
2904 * frontend counters. Supports being called as "sc[0-9]_conn_cur" or
2905 * "src_conn_cur" only.
2906 */
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002907static int
Willy Tarreauf44a5532013-07-23 15:17:53 +02002908smp_fetch_sc_conn_cur(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2909 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002910{
Willy Tarreauf44a5532013-07-23 15:17:53 +02002911 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2912
2913 if (!stkctr)
2914 return 0;
2915
Willy Tarreau37406352012-04-23 16:16:37 +02002916 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002917 smp->type = SMP_T_UINT;
2918 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002919 if (stkctr_entry(stkctr) != NULL) {
2920 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_CONN_CUR);
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002921 if (!ptr)
2922 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002923 smp->data.uint = stktable_data_cast(ptr, conn_cur);
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002924 }
2925 return 1;
2926}
2927
Willy Tarreau20843082013-07-23 15:35:33 +02002928/* set <smp> to the cumulated number of sessions from the session's tracked
2929 * frontend counters. Supports being called as "sc[0-9]_sess_cnt" or
2930 * "src_sess_cnt" only.
2931 */
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002932static int
Willy Tarreau20843082013-07-23 15:35:33 +02002933smp_fetch_sc_sess_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2934 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002935{
Willy Tarreau20843082013-07-23 15:35:33 +02002936 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2937
2938 if (!stkctr)
2939 return 0;
2940
Willy Tarreau37406352012-04-23 16:16:37 +02002941 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002942 smp->type = SMP_T_UINT;
2943 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002944 if (stkctr_entry(stkctr) != NULL) {
2945 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_SESS_CNT);
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002946 if (!ptr)
2947 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002948 smp->data.uint = stktable_data_cast(ptr, sess_cnt);
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002949 }
2950 return 1;
2951}
2952
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002953/* set <smp> to the session rate from the session's tracked frontend counters.
2954 * Supports being called as "sc[0-9]_sess_rate" or "src_sess_rate" only.
2955 */
Willy Tarreau91c43d72010-06-20 11:19:22 +02002956static int
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002957smp_fetch_sc_sess_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2958 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau91c43d72010-06-20 11:19:22 +02002959{
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002960 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2961
2962 if (!stkctr)
2963 return 0;
2964
Willy Tarreau37406352012-04-23 16:16:37 +02002965 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002966 smp->type = SMP_T_UINT;
2967 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002968 if (stkctr_entry(stkctr) != NULL) {
2969 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_SESS_RATE);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002970 if (!ptr)
2971 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002972 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, sess_rate),
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002973 stkctr->table->data_arg[STKTABLE_DT_SESS_RATE].u);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002974 }
2975 return 1;
2976}
2977
Willy Tarreau91200da2013-07-23 15:55:19 +02002978/* set <smp> to the cumulated number of HTTP requests from the session's tracked
2979 * frontend counters. Supports being called as "sc[0-9]_http_req_cnt" or
2980 * "src_http_req_cnt" only.
2981 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02002982static int
Willy Tarreau91200da2013-07-23 15:55:19 +02002983smp_fetch_sc_http_req_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2984 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02002985{
Willy Tarreau91200da2013-07-23 15:55:19 +02002986 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2987
2988 if (!stkctr)
2989 return 0;
2990
Willy Tarreau37406352012-04-23 16:16:37 +02002991 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002992 smp->type = SMP_T_UINT;
2993 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002994 if (stkctr_entry(stkctr) != NULL) {
2995 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_HTTP_REQ_CNT);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002996 if (!ptr)
2997 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002998 smp->data.uint = stktable_data_cast(ptr, http_req_cnt);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002999 }
3000 return 1;
3001}
3002
Willy Tarreaucf477632013-07-23 16:04:37 +02003003/* set <smp> to the HTTP request rate from the session's tracked frontend
3004 * counters. Supports being called as "sc[0-9]_http_req_rate" or
3005 * "src_http_req_rate" only.
3006 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02003007static int
Willy Tarreaucf477632013-07-23 16:04:37 +02003008smp_fetch_sc_http_req_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3009 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02003010{
Willy Tarreaucf477632013-07-23 16:04:37 +02003011 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3012
3013 if (!stkctr)
3014 return 0;
3015
Willy Tarreau37406352012-04-23 16:16:37 +02003016 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003017 smp->type = SMP_T_UINT;
3018 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003019 if (stkctr_entry(stkctr) != NULL) {
3020 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_HTTP_REQ_RATE);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003021 if (!ptr)
3022 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003023 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, http_req_rate),
Willy Tarreaucf477632013-07-23 16:04:37 +02003024 stkctr->table->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003025 }
3026 return 1;
3027}
3028
Willy Tarreau30d07c32013-07-23 16:45:38 +02003029/* set <smp> to the cumulated number of HTTP requests errors from the session's
3030 * tracked frontend counters. Supports being called as "sc[0-9]_http_err_cnt" or
3031 * "src_http_err_cnt" only.
3032 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02003033static int
Willy Tarreau30d07c32013-07-23 16:45:38 +02003034smp_fetch_sc_http_err_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3035 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02003036{
Willy Tarreau30d07c32013-07-23 16:45:38 +02003037 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3038
3039 if (!stkctr)
3040 return 0;
3041
Willy Tarreau37406352012-04-23 16:16:37 +02003042 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003043 smp->type = SMP_T_UINT;
3044 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003045 if (stkctr_entry(stkctr) != NULL) {
3046 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_HTTP_ERR_CNT);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003047 if (!ptr)
3048 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003049 smp->data.uint = stktable_data_cast(ptr, http_err_cnt);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003050 }
3051 return 1;
3052}
3053
Willy Tarreau9daf2622013-07-23 16:48:54 +02003054/* set <smp> to the HTTP request error rate from the session's tracked frontend
3055 * counters. Supports being called as "sc[0-9]_http_err_rate" or
3056 * "src_http_err_rate" only.
3057 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02003058static int
Willy Tarreau9daf2622013-07-23 16:48:54 +02003059smp_fetch_sc_http_err_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3060 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02003061{
Willy Tarreau9daf2622013-07-23 16:48:54 +02003062 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3063
3064 if (!stkctr)
3065 return 0;
3066
Willy Tarreau37406352012-04-23 16:16:37 +02003067 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003068 smp->type = SMP_T_UINT;
3069 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003070 if (stkctr_entry(stkctr) != NULL) {
3071 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_HTTP_ERR_RATE);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003072 if (!ptr)
3073 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003074 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, http_err_rate),
Willy Tarreau9daf2622013-07-23 16:48:54 +02003075 stkctr->table->data_arg[STKTABLE_DT_HTTP_ERR_RATE].u);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003076 }
3077 return 1;
3078}
3079
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003080/* set <smp> to the number of kbytes received from clients, as found in the
3081 * session's tracked frontend counters. Supports being called as
3082 * "sc[0-9]_kbytes_in" or "src_kbytes_in" only.
3083 */
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003084static int
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003085smp_fetch_sc_kbytes_in(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3086 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003087{
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003088 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3089
3090 if (!stkctr)
3091 return 0;
3092
Willy Tarreau37406352012-04-23 16:16:37 +02003093 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003094 smp->type = SMP_T_UINT;
3095 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003096 if (stkctr_entry(stkctr) != NULL) {
3097 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_IN_CNT);
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003098 if (!ptr)
3099 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003100 smp->data.uint = stktable_data_cast(ptr, bytes_in_cnt) >> 10;
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003101 }
3102 return 1;
3103}
3104
Willy Tarreau613fe992013-07-23 17:39:19 +02003105/* set <smp> to the data rate received from clients in bytes/s, as found
3106 * in the session's tracked frontend counters. Supports being called as
3107 * "sc[0-9]_bytes_in_rate" or "src_bytes_in_rate" only.
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003108 */
3109static int
Willy Tarreau613fe992013-07-23 17:39:19 +02003110smp_fetch_sc_bytes_in_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3111 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003112{
Willy Tarreau613fe992013-07-23 17:39:19 +02003113 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3114
3115 if (!stkctr)
3116 return 0;
3117
Willy Tarreau37406352012-04-23 16:16:37 +02003118 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003119 smp->type = SMP_T_UINT;
3120 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003121 if (stkctr_entry(stkctr) != NULL) {
3122 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_IN_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003123 if (!ptr)
3124 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003125 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, bytes_in_rate),
Willy Tarreau613fe992013-07-23 17:39:19 +02003126 stkctr->table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003127 }
3128 return 1;
3129}
3130
Willy Tarreau53aea102013-07-23 17:39:02 +02003131/* set <smp> to the number of kbytes sent to clients, as found in the
3132 * session's tracked frontend counters. Supports being called as
3133 * "sc[0-9]_kbytes_out" or "src_kbytes_out" only.
3134 */
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003135static int
Willy Tarreau53aea102013-07-23 17:39:02 +02003136smp_fetch_sc_kbytes_out(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3137 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003138{
Willy Tarreau53aea102013-07-23 17:39:02 +02003139 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3140
3141 if (!stkctr)
3142 return 0;
3143
Willy Tarreau37406352012-04-23 16:16:37 +02003144 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003145 smp->type = SMP_T_UINT;
3146 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003147 if (stkctr_entry(stkctr) != NULL) {
3148 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_OUT_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003149 if (!ptr)
3150 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003151 smp->data.uint = stktable_data_cast(ptr, bytes_out_cnt) >> 10;
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003152 }
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003153 return 1;
3154}
3155
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003156/* set <smp> to the data rate sent to clients in bytes/s, as found in the
3157 * session's tracked frontend counters. Supports being called as
3158 * "sc[0-9]_bytes_out_rate" or "src_bytes_out_rate" only.
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003159 */
3160static int
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003161smp_fetch_sc_bytes_out_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3162 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003163{
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003164 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3165
3166 if (!stkctr)
3167 return 0;
3168
Willy Tarreau37406352012-04-23 16:16:37 +02003169 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003170 smp->type = SMP_T_UINT;
3171 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003172 if (stkctr_entry(stkctr) != NULL) {
3173 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_OUT_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003174 if (!ptr)
3175 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003176 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, bytes_out_rate),
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003177 stkctr->table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003178 }
3179 return 1;
3180}
3181
Willy Tarreau563eef42013-07-23 18:32:02 +02003182/* set <smp> to the number of active trackers on the SC entry in the session's
3183 * tracked frontend counters. Supports being called as "sc[0-9]_trackers" only.
3184 */
Willy Tarreau2406db42012-12-09 12:16:43 +01003185static int
Willy Tarreau563eef42013-07-23 18:32:02 +02003186smp_fetch_sc_trackers(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02003187 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau2406db42012-12-09 12:16:43 +01003188{
Willy Tarreau563eef42013-07-23 18:32:02 +02003189 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
Willy Tarreau2406db42012-12-09 12:16:43 +01003190
Willy Tarreau563eef42013-07-23 18:32:02 +02003191 if (!stkctr)
Willy Tarreau2406db42012-12-09 12:16:43 +01003192 return 0;
3193
Willy Tarreau563eef42013-07-23 18:32:02 +02003194 smp->flags = SMP_F_VOL_TEST;
3195 smp->type = SMP_T_UINT;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003196 smp->data.uint = stkctr_entry(stkctr)->ref_cnt;
Willy Tarreau563eef42013-07-23 18:32:02 +02003197 return 1;
Willy Tarreaue25c9172013-05-28 18:32:20 +02003198}
3199
Willy Tarreau34db1082012-04-19 17:16:54 +02003200/* set temp integer to the number of used entries in the table pointed to by expr.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02003201 * Accepts exactly 1 argument of type table.
Willy Tarreau34db1082012-04-19 17:16:54 +02003202 */
Willy Tarreauc735a072011-03-29 00:57:02 +02003203static int
Willy Tarreau281c7992013-01-08 01:23:27 +01003204smp_fetch_table_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02003205 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc735a072011-03-29 00:57:02 +02003206{
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;
Willy Tarreau24e32d82012-04-23 23:55:44 +02003209 smp->data.uint = args->data.prx->table.current;
Willy Tarreauc735a072011-03-29 00:57:02 +02003210 return 1;
3211}
3212
Willy Tarreau34db1082012-04-19 17:16:54 +02003213/* set temp integer to the number of free entries in the table pointed to by expr.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02003214 * Accepts exactly 1 argument of type table.
Willy Tarreau34db1082012-04-19 17:16:54 +02003215 */
Willy Tarreauc735a072011-03-29 00:57:02 +02003216static int
Willy Tarreau281c7992013-01-08 01:23:27 +01003217smp_fetch_table_avl(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02003218 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc735a072011-03-29 00:57:02 +02003219{
Willy Tarreau24e32d82012-04-23 23:55:44 +02003220 px = args->data.prx;
Willy Tarreau37406352012-04-23 16:16:37 +02003221 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003222 smp->type = SMP_T_UINT;
3223 smp->data.uint = px->table.size - px->table.current;
Willy Tarreauc735a072011-03-29 00:57:02 +02003224 return 1;
3225}
Willy Tarreau8b22a712010-06-18 17:46:06 +02003226
Willy Tarreau61612d42012-04-19 18:42:05 +02003227/* Note: must not be declared <const> as its list will be overwritten.
3228 * Please take care of keeping this list alphabetically sorted.
3229 */
Willy Tarreaudc13c112013-06-21 23:16:39 +02003230static struct acl_kw_list acl_kws = {ILH, {
Willy Tarreau281c7992013-01-08 01:23:27 +01003231 { /* END */ },
Willy Tarreau8b22a712010-06-18 17:46:06 +02003232}};
3233
Willy Tarreau281c7992013-01-08 01:23:27 +01003234/* Note: must not be declared <const> as its list will be overwritten.
3235 * Please take care of keeping this list alphabetically sorted.
3236 */
Willy Tarreaudc13c112013-06-21 23:16:39 +02003237static struct sample_fetch_kw_list smp_fetch_keywords = {ILH, {
Willy Tarreau0f791d42013-07-23 19:56:43 +02003238 { "sc_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3239 { "sc_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3240 { "sc_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3241 { "sc_conn_cnt", smp_fetch_sc_conn_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3242 { "sc_conn_cur", smp_fetch_sc_conn_cur, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3243 { "sc_conn_rate", smp_fetch_sc_conn_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3244 { "sc_get_gpc0", smp_fetch_sc_get_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3245 { "sc_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3246 { "sc_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3247 { "sc_http_err_rate", smp_fetch_sc_http_err_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3248 { "sc_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3249 { "sc_http_req_rate", smp_fetch_sc_http_req_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3250 { "sc_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3251 { "sc_kbytes_in", smp_fetch_sc_kbytes_in, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3252 { "sc_kbytes_out", smp_fetch_sc_kbytes_out, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3253 { "sc_sess_cnt", smp_fetch_sc_sess_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3254 { "sc_sess_rate", smp_fetch_sc_sess_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3255 { "sc_tracked", smp_fetch_sc_tracked, ARG2(1,UINT,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3256 { "sc_trackers", smp_fetch_sc_trackers, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3257 { "sc0_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3258 { "sc0_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3259 { "sc0_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3260 { "sc0_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3261 { "sc0_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3262 { "sc0_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3263 { "sc0_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3264 { "sc0_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3265 { "sc0_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3266 { "sc0_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3267 { "sc0_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3268 { "sc0_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3269 { "sc0_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3270 { "sc0_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3271 { "sc0_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3272 { "sc0_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3273 { "sc0_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3274 { "sc0_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3275 { "sc0_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3276 { "sc1_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3277 { "sc1_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3278 { "sc1_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3279 { "sc1_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3280 { "sc1_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3281 { "sc1_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3282 { "sc1_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3283 { "sc1_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3284 { "sc1_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3285 { "sc1_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3286 { "sc1_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3287 { "sc1_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3288 { "sc1_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3289 { "sc1_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3290 { "sc1_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3291 { "sc1_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3292 { "sc1_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3293 { "sc1_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3294 { "sc1_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3295 { "sc2_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3296 { "sc2_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3297 { "sc2_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3298 { "sc2_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3299 { "sc2_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3300 { "sc2_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3301 { "sc2_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3302 { "sc2_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3303 { "sc2_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3304 { "sc2_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3305 { "sc2_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3306 { "sc2_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3307 { "sc2_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3308 { "sc2_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3309 { "sc2_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3310 { "sc2_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3311 { "sc2_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3312 { "sc2_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3313 { "sc2_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3314 { "src_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3315 { "src_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3316 { "src_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3317 { "src_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3318 { "src_conn_cur", smp_fetch_sc_conn_cur, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3319 { "src_conn_rate", smp_fetch_sc_conn_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3320 { "src_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3321 { "src_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3322 { "src_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3323 { "src_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3324 { "src_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3325 { "src_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3326 { "src_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3327 { "src_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3328 { "src_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3329 { "src_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3330 { "src_sess_rate", smp_fetch_sc_sess_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3331 { "src_updt_conn_cnt", smp_fetch_src_updt_conn_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3332 { "table_avl", smp_fetch_table_avl, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3333 { "table_cnt", smp_fetch_table_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
Willy Tarreau281c7992013-01-08 01:23:27 +01003334 { /* END */ },
3335}};
3336
Willy Tarreau8b22a712010-06-18 17:46:06 +02003337__attribute__((constructor))
3338static void __session_init(void)
3339{
Willy Tarreau281c7992013-01-08 01:23:27 +01003340 sample_register_fetches(&smp_fetch_keywords);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003341 acl_register_keywords(&acl_kws);
3342}
3343
Willy Tarreaubaaee002006-06-26 02:48:02 +02003344/*
3345 * Local variables:
3346 * c-indent-level: 8
3347 * c-basic-offset: 8
3348 * End:
3349 */