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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 */
122 s->uniq_id = totalconn;
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
130 /* now evaluate the tcp-request layer4 rules. Since we expect to be able
131 * to abort right here as soon as possible, we check the rules before
132 * even initializing the stream interfaces.
133 */
134 if ((l->options & LI_O_TCP_RULES) && !tcp_exec_req_rules(s)) {
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200135 /* let's do a no-linger now to close with a single RST. */
136 setsockopt(cfd, SOL_SOCKET, SO_LINGER, (struct linger *) &nolinger, sizeof(struct linger));
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100137 ret = 0; /* successful termination */
Willy Tarreau2542b532012-08-31 16:01:23 +0200138 goto out_free_session;
139 }
140
Willy Tarreau1bc4aab2012-10-08 20:11:03 +0200141#ifndef USE_ACCEPT4
142 /* Adjust some socket options if the connection was accepted by a plain
143 * accept() syscall.
144 */
Willy Tarreau82569f92012-09-27 23:48:56 +0200145 if (unlikely(fcntl(cfd, F_SETFL, O_NONBLOCK) == -1))
146 goto out_free_session;
Willy Tarreau1bc4aab2012-10-08 20:11:03 +0200147#endif
Willy Tarreau82569f92012-09-27 23:48:56 +0200148
149 /* monitor-net and health mode are processed immediately after TCP
150 * connection rules. This way it's possible to block them, but they
151 * never use the lower data layers, they send directly over the socket,
152 * as they were designed for. We first flush the socket receive buffer
153 * in order to avoid emission of an RST by the system. We ignore any
154 * error.
155 */
156 if (unlikely((p->mode == PR_MODE_HEALTH) ||
157 ((l->options & LI_O_CHK_MONNET) &&
158 addr->ss_family == AF_INET &&
159 (((struct sockaddr_in *)addr)->sin_addr.s_addr & p->mon_mask.s_addr) == p->mon_net.s_addr))) {
160 /* we have 4 possibilities here :
161 * - HTTP mode, from monitoring address => send "HTTP/1.0 200 OK"
162 * - HEALTH mode with HTTP check => send "HTTP/1.0 200 OK"
163 * - HEALTH mode without HTTP check => just send "OK"
164 * - TCP mode from monitoring address => just close
165 */
Willy Tarreau2b57cb82013-06-10 19:56:38 +0200166 if (l->proto->drain)
167 l->proto->drain(cfd);
Willy Tarreau82569f92012-09-27 23:48:56 +0200168 if (p->mode == PR_MODE_HTTP ||
169 (p->mode == PR_MODE_HEALTH && (p->options2 & PR_O2_CHK_ANY) == PR_O2_HTTP_CHK))
170 send(cfd, "HTTP/1.0 200 OK\r\n\r\n", 19, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_MORE);
171 else if (p->mode == PR_MODE_HEALTH)
172 send(cfd, "OK\n", 3, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_MORE);
173 ret = 0;
174 goto out_free_session;
175 }
176
Willy Tarreau22cda212012-08-31 17:43:29 +0200177 /* wait for a PROXY protocol header */
178 if (l->options & LI_O_ACC_PROXY) {
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200179 cli_conn->flags |= CO_FL_ACCEPT_PROXY;
180 conn_sock_want_recv(cli_conn);
Willy Tarreau22cda212012-08-31 17:43:29 +0200181 }
182
Willy Tarreau2542b532012-08-31 16:01:23 +0200183 if (unlikely((t = task_new()) == NULL))
184 goto out_free_session;
185
186 t->context = s;
187 t->nice = l->nice;
188 s->task = t;
189
Willy Tarreauf7bc57c2012-10-03 00:19:48 +0200190 /* Add the various callbacks. Right now the transport layer is present
191 * but not initialized. Also note we need to be careful as the stream
192 * int is not initialized yet.
Willy Tarreau2542b532012-08-31 16:01:23 +0200193 */
Willy Tarreau7abddb52013-10-24 15:31:04 +0200194 conn_attach(cli_conn, s, &sess_conn_cb);
Willy Tarreau2542b532012-08-31 16:01:23 +0200195
196 /* finish initialization of the accepted file descriptor */
Willy Tarreauf79c8172013-10-21 16:30:56 +0200197 conn_ctrl_init(cli_conn);
198
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200199 conn_data_want_recv(cli_conn);
200 if (conn_xprt_init(cli_conn) < 0)
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100201 goto out_free_task;
Willy Tarreau2542b532012-08-31 16:01:23 +0200202
203 /* OK, now either we have a pending handshake to execute with and
204 * then we must return to the I/O layer, or we can proceed with the
205 * end of the session initialization. In case of handshake, we also
206 * set the I/O timeout to the frontend's client timeout.
207 */
208
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200209 if (cli_conn->flags & CO_FL_HANDSHAKE) {
Willy Tarreau2542b532012-08-31 16:01:23 +0200210 t->process = expire_mini_session;
211 t->expire = tick_add_ifset(now_ms, p->timeout.client);
212 task_queue(t);
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200213 cli_conn->flags |= CO_FL_INIT_DATA | CO_FL_WAKE_DATA;
Willy Tarreau2542b532012-08-31 16:01:23 +0200214 return 1;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200215 }
216
Willy Tarreau815f5ec2012-11-06 00:14:25 +0100217 /* OK let's complete session initialization since there is no handshake */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200218 cli_conn->flags |= CO_FL_CONNECTED;
Willy Tarreau2542b532012-08-31 16:01:23 +0200219 ret = session_complete(s);
220 if (ret > 0)
221 return ret;
222
223 /* Error unrolling */
224 out_free_task:
225 task_free(t);
226 out_free_session:
227 p->feconn--;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100228 if (s->stkctr[0].entry || s->stkctr[1].entry)
Willy Tarreau2542b532012-08-31 16:01:23 +0200229 session_store_counters(s);
230 pool_free2(pool2_session, s);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200231 out_free_conn:
232 cli_conn->flags &= ~CO_FL_XPRT_TRACKED;
233 conn_xprt_close(cli_conn);
234 conn_free(cli_conn);
Willy Tarreau2542b532012-08-31 16:01:23 +0200235 out_close:
Willy Tarreauf7bc57c2012-10-03 00:19:48 +0200236 if (ret < 0 && l->xprt == &raw_sock && p->mode == PR_MODE_HTTP) {
Willy Tarreau2542b532012-08-31 16:01:23 +0200237 /* critical error, no more memory, try to emit a 500 response */
Willy Tarreau05bf5e12013-10-20 23:10:28 +0200238 struct chunk *err_msg = &p->errmsg[HTTP_ERR_500];
239 if (!err_msg->str)
240 err_msg = &http_err_chunks[HTTP_ERR_500];
Willy Tarreau2542b532012-08-31 16:01:23 +0200241 send(cfd, err_msg->str, err_msg->len, MSG_DONTWAIT|MSG_NOSIGNAL);
242 }
243
244 if (fdtab[cfd].owner)
245 fd_delete(cfd);
246 else
247 close(cfd);
248 return ret;
249}
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100250
Willy Tarreau0af29122012-12-03 15:35:00 +0100251
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200252/* prepare the trash with a log prefix for session <s>. It only works with
253 * embryonic sessions based on a real connection.
254 */
Willy Tarreau0af29122012-12-03 15:35:00 +0100255static void prepare_mini_sess_log_prefix(struct session *s)
256{
257 struct tm tm;
258 char pn[INET6_ADDRSTRLEN];
259 int ret;
260 char *end;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200261 struct connection *cli_conn = __objt_conn(s->target);
Willy Tarreau0af29122012-12-03 15:35:00 +0100262
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200263 ret = addr_to_str(&cli_conn->addr.from, pn, sizeof(pn));
Willy Tarreau0af29122012-12-03 15:35:00 +0100264 if (ret <= 0)
265 chunk_printf(&trash, "unknown [");
266 else if (ret == AF_UNIX)
267 chunk_printf(&trash, "%s:%d [", pn, s->listener->luid);
268 else
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200269 chunk_printf(&trash, "%s:%d [", pn, get_host_port(&cli_conn->addr.from));
Willy Tarreau0af29122012-12-03 15:35:00 +0100270
271 get_localtime(s->logs.accept_date.tv_sec, &tm);
272 end = date2str_log(trash.str + trash.len, &tm, &(s->logs.accept_date), trash.size - trash.len);
273 trash.len = end - trash.str;
274 if (s->listener->name)
275 chunk_appendf(&trash, "] %s/%s", s->fe->id, s->listener->name);
276 else
277 chunk_appendf(&trash, "] %s/%d", s->fe->id, s->listener->luid);
278}
279
Willy Tarreau2542b532012-08-31 16:01:23 +0200280/* This function kills an existing embryonic session. It stops the connection's
Willy Tarreauf7bc57c2012-10-03 00:19:48 +0200281 * transport layer, releases assigned resources, resumes the listener if it was
Willy Tarreau2542b532012-08-31 16:01:23 +0200282 * disabled and finally kills the file descriptor.
283 */
284static void kill_mini_session(struct session *s)
285{
Willy Tarreau0af29122012-12-03 15:35:00 +0100286 int level = LOG_INFO;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200287 struct connection *conn = __objt_conn(s->target);
Willy Tarreau0af29122012-12-03 15:35:00 +0100288 unsigned int log = s->logs.logwait;
289 const char *err_msg;
290
291 if (s->fe->options2 & PR_O2_LOGERRORS)
292 level = LOG_ERR;
293
294 if (log && (s->fe->options & PR_O_NULLNOLOG)) {
295 /* with "option dontlognull", we don't log connections with no transfer */
Willy Tarreau8e3bf692012-12-03 15:41:18 +0100296 if (!conn->err_code ||
Willy Tarreau20879a02012-12-03 16:32:10 +0100297 conn->err_code == CO_ER_PRX_EMPTY || conn->err_code == CO_ER_PRX_ABORT ||
298 conn->err_code == CO_ER_SSL_EMPTY || conn->err_code == CO_ER_SSL_ABORT)
Willy Tarreau0af29122012-12-03 15:35:00 +0100299 log = 0;
300 }
301
302 if (log) {
303 if (!conn->err_code && (s->task->state & TASK_WOKEN_TIMER)) {
304 if (conn->flags & CO_FL_ACCEPT_PROXY)
305 conn->err_code = CO_ER_PRX_TIMEOUT;
306 else if (conn->flags & CO_FL_SSL_WAIT_HS)
307 conn->err_code = CO_ER_SSL_TIMEOUT;
308 }
309
310 prepare_mini_sess_log_prefix(s);
311 err_msg = conn_err_code_str(conn);
312 if (err_msg)
313 send_log(s->fe, level, "%s: %s\n", trash.str, err_msg);
314 else
315 send_log(s->fe, level, "%s: unknown connection error (code=%d flags=%08x)\n",
316 trash.str, conn->err_code, conn->flags);
317 }
318
Willy Tarreau2542b532012-08-31 16:01:23 +0200319 /* kill the connection now */
Willy Tarreauf79c8172013-10-21 16:30:56 +0200320 conn_force_close(conn);
Willy Tarreau2542b532012-08-31 16:01:23 +0200321
322 s->fe->feconn--;
Willy Tarreau7af7d592013-07-01 18:07:03 +0200323 session_store_counters(s);
Willy Tarreau2542b532012-08-31 16:01:23 +0200324
325 if (!(s->listener->options & LI_O_UNLIMITED))
326 actconn--;
327 jobs--;
328 s->listener->nbconn--;
329 if (s->listener->state == LI_FULL)
330 resume_listener(s->listener);
331
332 /* Dequeues all of the listeners waiting for a resource */
333 if (!LIST_ISEMPTY(&global_listener_queue))
334 dequeue_all_listeners(&global_listener_queue);
335
336 if (!LIST_ISEMPTY(&s->fe->listener_queue) &&
337 (!s->fe->fe_sps_lim || freq_ctr_remain(&s->fe->fe_sess_per_sec, s->fe->fe_sps_lim, 0) > 0))
338 dequeue_all_listeners(&s->fe->listener_queue);
339
340 task_delete(s->task);
341 task_free(s->task);
342
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200343 pool_free2(pool2_connection, conn);
Willy Tarreau2542b532012-08-31 16:01:23 +0200344 pool_free2(pool2_session, s);
345}
346
Willy Tarreau22cda212012-08-31 17:43:29 +0200347/* Finish initializing a session from a connection, or kills it if the
348 * connection shows and error. Returns <0 if the connection was killed.
Willy Tarreau2542b532012-08-31 16:01:23 +0200349 */
Willy Tarreau071e1372012-10-03 01:39:48 +0200350static int conn_session_complete(struct connection *conn)
Willy Tarreau2542b532012-08-31 16:01:23 +0200351{
Willy Tarreau5e75e272012-10-02 21:21:20 +0200352 struct session *s = conn->owner;
Willy Tarreau2542b532012-08-31 16:01:23 +0200353
Willy Tarreau22cda212012-08-31 17:43:29 +0200354 if (!(conn->flags & CO_FL_ERROR) && (session_complete(s) > 0)) {
Willy Tarreau071e1372012-10-03 01:39:48 +0200355 conn->flags &= ~CO_FL_INIT_DATA;
Willy Tarreau2542b532012-08-31 16:01:23 +0200356 return 0;
357 }
358
359 /* kill the connection now */
360 kill_mini_session(s);
361 return -1;
362}
363
Willy Tarreau9683e9a2012-10-03 21:17:23 +0200364/* Update an embryonic session status. The connection is killed in case of
365 * error, and <0 will be returned. Otherwise it does nothing.
366 */
367static int conn_session_update(struct connection *conn)
368{
369 if (conn->flags & CO_FL_ERROR) {
370 kill_mini_session(conn->owner);
371 return -1;
372 }
373 return 0;
374}
375
Willy Tarreau2542b532012-08-31 16:01:23 +0200376/* Manages embryonic sessions timeout. It is only called when the timeout
377 * strikes and performs the required cleanup.
378 */
379static struct task *expire_mini_session(struct task *t)
380{
381 struct session *s = t->context;
382
383 if (!(t->state & TASK_WOKEN_TIMER))
384 return t;
385
386 kill_mini_session(s);
387 return NULL;
388}
389
390/* This function is called from the I/O handler which detects the end of
391 * handshake, in order to complete initialization of a valid session. It must
392 * be called with an embryonic session. It returns a positive value upon
393 * success, 0 if the connection can be ignored, or a negative value upon
394 * critical failure. The accepted file descriptor is closed if we return <= 0.
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200395 * The client-side end point is assumed to be a connection.
Willy Tarreau2542b532012-08-31 16:01:23 +0200396 */
397int session_complete(struct session *s)
398{
399 struct listener *l = s->listener;
400 struct proxy *p = s->fe;
401 struct http_txn *txn;
402 struct task *t = s->task;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200403 struct connection *conn = __objt_conn(s->target);
Willy Tarreau2542b532012-08-31 16:01:23 +0200404 int ret;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100405 int i;
Willy Tarreau2542b532012-08-31 16:01:23 +0200406
407 ret = -1; /* assume unrecoverable error by default */
408
409 /* OK, we're keeping the session, so let's properly initialize the session */
410 LIST_ADDQ(&sessions, &s->list);
411 LIST_INIT(&s->back_refs);
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200412
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200413 s->flags |= SN_INITIALIZED;
Willy Tarreau2542b532012-08-31 16:01:23 +0200414 s->unique_id = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200415
416 t->process = l->handler;
417 t->context = s;
418 t->expire = TICK_ETERNITY;
419
420 /* Note: initially, the session's backend points to the frontend.
421 * This changes later when switching rules are executed or
422 * when the default backend is assigned.
423 */
424 s->be = s->fe;
425 s->req = s->rep = NULL; /* will be allocated later */
William Lallemand82fe75c2012-10-23 10:25:10 +0200426 s->comp_algo = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200427
428 /* Let's count a session now */
Willy Tarreaub36b4242010-06-04 20:59:39 +0200429 proxy_inc_fe_sess_ctr(l, p);
Willy Tarreau91c43d72010-06-20 11:19:22 +0200430
Willy Tarreaub4c84932013-07-23 19:15:30 +0200431 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200432 void *ptr;
433
Willy Tarreau20d46a52012-12-09 15:55:40 +0100434 if (!s->stkctr[i].entry)
435 continue;
436
437 ptr = stktable_data_ptr(s->stkctr[i].table, s->stkctr[i].entry, STKTABLE_DT_SESS_CNT);
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200438 if (ptr)
439 stktable_data_cast(ptr, sess_cnt)++;
440
Willy Tarreau20d46a52012-12-09 15:55:40 +0100441 ptr = stktable_data_ptr(s->stkctr[i].table, s->stkctr[i].entry, STKTABLE_DT_SESS_RATE);
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200442 if (ptr)
443 update_freq_ctr_period(&stktable_data_cast(ptr, sess_rate),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100444 s->stkctr[i].table->data_arg[STKTABLE_DT_SESS_RATE].u, 1);
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200445 }
446
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200447 /* this part should be common with other protocols */
448 si_reset(&s->si[0], t);
449 si_set_state(&s->si[0], SI_ST_EST);
450
451 /* attach the incoming connection to the stream interface now */
452 si_attach_conn(&s->si[0], conn);
453
454 if (likely(s->fe->options2 & PR_O2_INDEPSTR))
455 s->si[0].flags |= SI_FL_INDEP_STR;
456
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200457 /* pre-initialize the other side's stream interface to an INIT state. The
458 * callbacks will be initialized before attempting to connect.
459 */
Willy Tarreau3ed35ef2013-10-24 11:51:38 +0200460 si_reset(&s->si[1], t);
Willy Tarreau2a6e8802013-10-24 15:50:53 +0200461 si_detach(&s->si[1]);
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200462
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200463 if (likely(s->fe->options2 & PR_O2_INDEPSTR))
464 s->si[1].flags |= SI_FL_INDEP_STR;
465
Willy Tarreau9bd0d742011-07-20 00:17:39 +0200466 session_init_srv_conn(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100467 s->target = NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200468 s->pend_pos = NULL;
469
470 /* init store persistence */
471 s->store_count = 0;
472
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200473 if (unlikely((s->req = pool_alloc2(pool2_channel)) == NULL))
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200474 goto out_free_task; /* no memory */
475
Willy Tarreau9b28e032012-10-12 23:49:43 +0200476 if (unlikely((s->req->buf = pool_alloc2(pool2_buffer)) == NULL))
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200477 goto out_free_req; /* no memory */
478
Willy Tarreau9b28e032012-10-12 23:49:43 +0200479 if (unlikely((s->rep = pool_alloc2(pool2_channel)) == NULL))
480 goto out_free_req_buf; /* no memory */
481
482 if (unlikely((s->rep->buf = pool_alloc2(pool2_buffer)) == NULL))
483 goto out_free_rep; /* no memory */
484
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200485 /* initialize the request buffer */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200486 s->req->buf->size = global.tune.bufsize;
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200487 channel_init(s->req);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200488 s->req->prod = &s->si[0];
489 s->req->cons = &s->si[1];
490 s->si[0].ib = s->si[1].ob = s->req;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200491 s->req->flags |= CF_READ_ATTACHED; /* the producer is already connected */
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200492
493 /* activate default analysers enabled for this listener */
494 s->req->analysers = l->analysers;
495
496 s->req->wto = TICK_ETERNITY;
497 s->req->rto = TICK_ETERNITY;
498 s->req->rex = TICK_ETERNITY;
499 s->req->wex = TICK_ETERNITY;
500 s->req->analyse_exp = TICK_ETERNITY;
501
502 /* initialize response buffer */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200503 s->rep->buf->size = global.tune.bufsize;
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200504 channel_init(s->rep);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200505 s->rep->prod = &s->si[1];
506 s->rep->cons = &s->si[0];
507 s->si[0].ob = s->si[1].ib = s->rep;
508 s->rep->analysers = 0;
509
Willy Tarreau96e31212011-05-30 18:10:30 +0200510 if (s->fe->options2 & PR_O2_NODELAY) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200511 s->req->flags |= CF_NEVER_WAIT;
512 s->rep->flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200513 }
514
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200515 s->rep->rto = TICK_ETERNITY;
516 s->rep->wto = TICK_ETERNITY;
517 s->rep->rex = TICK_ETERNITY;
518 s->rep->wex = TICK_ETERNITY;
519 s->rep->analyse_exp = TICK_ETERNITY;
520
Willy Tarreau62f791e2012-03-09 11:32:30 +0100521 txn = &s->txn;
522 /* Those variables will be checked and freed if non-NULL in
523 * session.c:session_free(). It is important that they are
524 * properly initialized.
525 */
526 txn->sessid = NULL;
527 txn->srv_cookie = NULL;
528 txn->cli_cookie = NULL;
529 txn->uri = NULL;
530 txn->req.cap = NULL;
531 txn->rsp.cap = NULL;
532 txn->hdr_idx.v = NULL;
533 txn->hdr_idx.size = txn->hdr_idx.used = 0;
534 txn->req.flags = 0;
535 txn->rsp.flags = 0;
536 /* the HTTP messages need to know what buffer they're associated with */
Willy Tarreau394db372012-10-12 22:40:39 +0200537 txn->req.chn = s->req;
538 txn->rsp.chn = s->rep;
Willy Tarreau62f791e2012-03-09 11:32:30 +0100539
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200540 /* finish initialization of the accepted file descriptor */
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200541 conn_data_want_recv(conn);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200542
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100543 if (p->accept && (ret = p->accept(s)) <= 0) {
544 /* Either we had an unrecoverable error (<0) or work is
545 * finished (=0, eg: monitoring), in both situations,
546 * we can release everything and close.
547 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200548 goto out_free_rep_buf;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200549 }
550
Willy Tarreau93dbc2b2012-10-12 18:01:49 +0200551 /* if logs require transport layer information, note it on the connection */
552 if (s->logs.logwait & LW_XPRT)
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200553 conn->flags |= CO_FL_XPRT_TRACKED;
Willy Tarreau93dbc2b2012-10-12 18:01:49 +0200554
Willy Tarreau2542b532012-08-31 16:01:23 +0200555 /* we want the connection handler to notify the stream interface about updates. */
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200556 conn->flags |= CO_FL_WAKE_DATA;
Willy Tarreau2542b532012-08-31 16:01:23 +0200557
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200558 /* it is important not to call the wakeup function directly but to
559 * pass through task_wakeup(), because this one knows how to apply
560 * priorities to tasks.
561 */
562 task_wakeup(t, TASK_WOKEN_INIT);
563 return 1;
564
565 /* Error unrolling */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200566 out_free_rep_buf:
567 pool_free2(pool2_buffer, s->rep->buf);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200568 out_free_rep:
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200569 pool_free2(pool2_channel, s->rep);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200570 out_free_req_buf:
571 pool_free2(pool2_buffer, s->req->buf);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200572 out_free_req:
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200573 pool_free2(pool2_channel, s->req);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200574 out_free_task:
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100575 return ret;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200576}
577
Willy Tarreaubaaee002006-06-26 02:48:02 +0200578/*
579 * frees the context associated to a session. It must have been removed first.
580 */
Simon Hormandec5be42011-06-08 09:19:07 +0900581static void session_free(struct session *s)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200582{
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100583 struct http_txn *txn = &s->txn;
Willy Tarreau632f5a72007-07-11 10:42:35 +0200584 struct proxy *fe = s->fe;
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100585 struct bref *bref, *back;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200586 struct connection *cli_conn = objt_conn(s->si[0].end);
Willy Tarreaua4cda672010-06-06 18:28:49 +0200587 int i;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100588
Willy Tarreaubaaee002006-06-26 02:48:02 +0200589 if (s->pend_pos)
590 pendconn_free(s->pend_pos);
Willy Tarreau922a8062008-12-04 09:33:58 +0100591
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100592 if (objt_server(s->target)) { /* there may be requests left pending in queue */
Willy Tarreau1e62de62008-11-11 20:20:02 +0100593 if (s->flags & SN_CURR_SESS) {
594 s->flags &= ~SN_CURR_SESS;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100595 objt_server(s->target)->cur_sess--;
Willy Tarreau1e62de62008-11-11 20:20:02 +0100596 }
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100597 if (may_dequeue_tasks(objt_server(s->target), s->be))
598 process_srv_queue(objt_server(s->target));
Willy Tarreau1e62de62008-11-11 20:20:02 +0100599 }
Willy Tarreau922a8062008-12-04 09:33:58 +0100600
Willy Tarreau7c669d72008-06-20 15:04:11 +0200601 if (unlikely(s->srv_conn)) {
602 /* the session still has a reserved slot on a server, but
603 * it should normally be only the same as the one above,
604 * so this should not happen in fact.
605 */
606 sess_change_server(s, NULL);
607 }
608
Willy Tarreau543db622012-11-15 16:41:22 +0100609 if (s->flags & SN_COMP_READY)
William Lallemand1c2d6222012-10-30 15:52:53 +0100610 s->comp_algo->end(&s->comp_ctx);
Willy Tarreau543db622012-11-15 16:41:22 +0100611 s->comp_algo = NULL;
612 s->flags &= ~SN_COMP_READY;
William Lallemand82fe75c2012-10-23 10:25:10 +0200613
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100614 if (s->req->pipe)
615 put_pipe(s->req->pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100616
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100617 if (s->rep->pipe)
618 put_pipe(s->rep->pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100619
Willy Tarreau9b28e032012-10-12 23:49:43 +0200620 pool_free2(pool2_buffer, s->req->buf);
621 pool_free2(pool2_buffer, s->rep->buf);
622
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200623 pool_free2(pool2_channel, s->req);
624 pool_free2(pool2_channel, s->rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200625
Willy Tarreau46023632010-01-07 22:51:47 +0100626 http_end_txn(s);
627
Willy Tarreau1e954912012-10-12 17:50:05 +0200628 /* ensure the client-side transport layer is destroyed */
Willy Tarreauf79c8172013-10-21 16:30:56 +0200629 if (cli_conn)
630 conn_force_close(cli_conn);
Willy Tarreau1e954912012-10-12 17:50:05 +0200631
Willy Tarreaua4cda672010-06-06 18:28:49 +0200632 for (i = 0; i < s->store_count; i++) {
633 if (!s->store[i].ts)
634 continue;
635 stksess_free(s->store[i].table, s->store[i].ts);
636 s->store[i].ts = NULL;
637 }
638
Willy Tarreau34eb6712011-10-24 18:15:04 +0200639 pool_free2(pool2_hdr_idx, txn->hdr_idx.v);
Willy Tarreau92fb9832007-10-16 17:34:28 +0200640 if (fe) {
Willy Tarreau46023632010-01-07 22:51:47 +0100641 pool_free2(fe->rsp_cap_pool, txn->rsp.cap);
642 pool_free2(fe->req_cap_pool, txn->req.cap);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200643 }
Willy Tarreau0937bc42009-12-22 15:03:09 +0100644
Willy Tarreau7af7d592013-07-01 18:07:03 +0200645 session_store_counters(s);
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +0200646
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100647 list_for_each_entry_safe(bref, back, &s->back_refs, users) {
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100648 /* we have to unlink all watchers. We must not relink them if
649 * this session was the last one in the list.
650 */
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100651 LIST_DEL(&bref->users);
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100652 LIST_INIT(&bref->users);
653 if (s->list.n != &sessions)
654 LIST_ADDQ(&LIST_ELEM(s->list.n, struct session *, list)->back_refs, &bref->users);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100655 bref->ref = s->list.n;
656 }
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100657 LIST_DEL(&s->list);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200658 si_release_endpoint(&s->si[1]);
659 si_release_endpoint(&s->si[0]);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200660 pool_free2(pool2_session, s);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200661
662 /* We may want to free the maximum amount of pools if the proxy is stopping */
Willy Tarreau92fb9832007-10-16 17:34:28 +0200663 if (fe && unlikely(fe->state == PR_STSTOPPED)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200664 pool_flush2(pool2_buffer);
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200665 pool_flush2(pool2_channel);
Willy Tarreau34eb6712011-10-24 18:15:04 +0200666 pool_flush2(pool2_hdr_idx);
Willy Tarreau48d63db2008-08-03 17:41:33 +0200667 pool_flush2(pool2_requri);
668 pool_flush2(pool2_capture);
669 pool_flush2(pool2_session);
670 pool_flush2(fe->req_cap_pool);
671 pool_flush2(fe->rsp_cap_pool);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200672 }
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200673}
674
675
676/* perform minimal intializations, report 0 in case of error, 1 if OK. */
677int init_session()
678{
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100679 LIST_INIT(&sessions);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200680 pool2_session = create_pool("session", sizeof(struct session), MEM_F_SHARED);
681 return pool2_session != NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200682}
683
Willy Tarreau30e71012007-11-26 20:15:35 +0100684void session_process_counters(struct session *s)
685{
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100686 unsigned long long bytes;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100687 void *ptr;
688 int i;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100689
Willy Tarreau30e71012007-11-26 20:15:35 +0100690 if (s->req) {
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100691 bytes = s->req->total - s->logs.bytes_in;
Willy Tarreau30e71012007-11-26 20:15:35 +0100692 s->logs.bytes_in = s->req->total;
693 if (bytes) {
Willy Tarreau20d46a52012-12-09 15:55:40 +0100694 s->fe->fe_counters.bytes_in += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100695
Willy Tarreau20d46a52012-12-09 15:55:40 +0100696 s->be->be_counters.bytes_in += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100697
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100698 if (objt_server(s->target))
Willy Tarreau20d46a52012-12-09 15:55:40 +0100699 objt_server(s->target)->counters.bytes_in += bytes;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200700
701 if (s->listener->counters)
Willy Tarreau20d46a52012-12-09 15:55:40 +0100702 s->listener->counters->bytes_in += bytes;
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200703
Willy Tarreaub4c84932013-07-23 19:15:30 +0200704 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau20d46a52012-12-09 15:55:40 +0100705 if (!s->stkctr[i].entry)
706 continue;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200707
Willy Tarreau20d46a52012-12-09 15:55:40 +0100708 ptr = stktable_data_ptr(s->stkctr[i].table,
709 s->stkctr[i].entry,
710 STKTABLE_DT_BYTES_IN_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200711 if (ptr)
712 stktable_data_cast(ptr, bytes_in_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200713
Willy Tarreau20d46a52012-12-09 15:55:40 +0100714 ptr = stktable_data_ptr(s->stkctr[i].table,
715 s->stkctr[i].entry,
716 STKTABLE_DT_BYTES_IN_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200717 if (ptr)
718 update_freq_ctr_period(&stktable_data_cast(ptr, bytes_in_rate),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100719 s->stkctr[i].table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200720 }
Willy Tarreau30e71012007-11-26 20:15:35 +0100721 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100722 }
723
Willy Tarreau30e71012007-11-26 20:15:35 +0100724 if (s->rep) {
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100725 bytes = s->rep->total - s->logs.bytes_out;
Willy Tarreau30e71012007-11-26 20:15:35 +0100726 s->logs.bytes_out = s->rep->total;
727 if (bytes) {
Willy Tarreau20d46a52012-12-09 15:55:40 +0100728 s->fe->fe_counters.bytes_out += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100729
Willy Tarreau20d46a52012-12-09 15:55:40 +0100730 s->be->be_counters.bytes_out += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100731
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100732 if (objt_server(s->target))
Willy Tarreau20d46a52012-12-09 15:55:40 +0100733 objt_server(s->target)->counters.bytes_out += bytes;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200734
735 if (s->listener->counters)
Willy Tarreau20d46a52012-12-09 15:55:40 +0100736 s->listener->counters->bytes_out += bytes;
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200737
Willy Tarreaub4c84932013-07-23 19:15:30 +0200738 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau20d46a52012-12-09 15:55:40 +0100739 if (!s->stkctr[i].entry)
740 continue;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200741
Willy Tarreau20d46a52012-12-09 15:55:40 +0100742 ptr = stktable_data_ptr(s->stkctr[i].table,
743 s->stkctr[i].entry,
744 STKTABLE_DT_BYTES_OUT_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200745 if (ptr)
746 stktable_data_cast(ptr, bytes_out_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200747
Willy Tarreau20d46a52012-12-09 15:55:40 +0100748 ptr = stktable_data_ptr(s->stkctr[i].table,
749 s->stkctr[i].entry,
750 STKTABLE_DT_BYTES_OUT_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200751 if (ptr)
752 update_freq_ctr_period(&stktable_data_cast(ptr, bytes_out_rate),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100753 s->stkctr[i].table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200754 }
Willy Tarreau30e71012007-11-26 20:15:35 +0100755 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100756 }
757}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200758
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100759/* This function is called with (si->state == SI_ST_CON) meaning that a
760 * connection was attempted and that the file descriptor is already allocated.
761 * We must check for establishment, error and abort. Possible output states
762 * are SI_ST_EST (established), SI_ST_CER (error), SI_ST_DIS (abort), and
763 * SI_ST_CON (no change). The function returns 0 if it switches to SI_ST_CER,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200764 * otherwise 1. This only works with connection-based sessions.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100765 */
Simon Hormandec5be42011-06-08 09:19:07 +0900766static int sess_update_st_con_tcp(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100767{
Willy Tarreau7421efb2012-07-02 15:11:27 +0200768 struct channel *req = si->ob;
769 struct channel *rep = si->ib;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200770 struct connection *srv_conn = __objt_conn(si->end);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100771
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100772 /* If we got an error, or if nothing happened and the connection timed
773 * out, we must give up. The CER state handler will take care of retry
774 * attempts and error reports.
775 */
776 if (unlikely(si->flags & (SI_FL_EXP|SI_FL_ERR))) {
Willy Tarreaue3224e82012-10-29 22:41:31 +0100777 if (unlikely(si->ob->flags & CF_WRITE_PARTIAL)) {
778 /* Some data were sent past the connection establishment,
779 * so we need to pretend we're established to log correctly
780 * and let later states handle the failure.
781 */
782 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
783 si->exp = TICK_ETERNITY;
784 si->state = SI_ST_EST;
785 si->err_type = SI_ET_DATA_ERR;
786 si->ib->flags |= CF_READ_ERROR | CF_WRITE_ERROR;
Willy Tarreaue3224e82012-10-29 22:41:31 +0100787 return 1;
788 }
Willy Tarreau127334e2009-03-28 10:47:26 +0100789 si->exp = TICK_ETERNITY;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100790 si->state = SI_ST_CER;
Willy Tarreau0ede5a32012-12-08 08:44:02 +0100791
Willy Tarreauf79c8172013-10-21 16:30:56 +0200792 conn_force_close(srv_conn);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100793
794 if (si->err_type)
795 return 0;
796
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100797 if (si->flags & SI_FL_ERR)
798 si->err_type = SI_ET_CONN_ERR;
799 else
800 si->err_type = SI_ET_CONN_TO;
801 return 0;
802 }
803
804 /* OK, maybe we want to abort */
Willy Tarreaua7a7ebc2012-12-30 00:50:35 +0100805 if (!(req->flags & CF_WRITE_PARTIAL) &&
806 unlikely((rep->flags & CF_SHUTW) ||
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200807 ((req->flags & CF_SHUTW_NOW) && /* FIXME: this should not prevent a connection from establishing */
808 ((!(req->flags & CF_WRITE_ACTIVITY) && channel_is_empty(req)) ||
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100809 s->be->options & PR_O_ABRT_CLOSE)))) {
810 /* give up */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200811 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100812 si->err_type |= SI_ET_CONN_ABRT;
Willy Tarreau84455332009-03-15 22:34:05 +0100813 if (s->srv_error)
814 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100815 return 1;
816 }
817
818 /* we need to wait a bit more if there was no activity either */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200819 if (!(req->flags & CF_WRITE_ACTIVITY))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100820 return 1;
821
822 /* OK, this means that a connection succeeded. The caller will be
823 * responsible for handling the transition from CON to EST.
824 */
825 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau127334e2009-03-28 10:47:26 +0100826 si->exp = TICK_ETERNITY;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100827 si->state = SI_ST_EST;
828 si->err_type = SI_ET_NONE;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100829 return 1;
830}
831
832/* This function is called with (si->state == SI_ST_CER) meaning that a
833 * previous connection attempt has failed and that the file descriptor
834 * has already been released. Possible causes include asynchronous error
835 * notification and time out. Possible output states are SI_ST_CLO when
836 * retries are exhausted, SI_ST_TAR when a delay is wanted before a new
837 * connection attempt, SI_ST_ASS when it's wise to retry on the same server,
838 * and SI_ST_REQ when an immediate redispatch is wanted. The buffers are
839 * marked as in error state. It returns 0.
840 */
Simon Hormandec5be42011-06-08 09:19:07 +0900841static int sess_update_st_cer(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100842{
843 /* we probably have to release last session from the server */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100844 if (objt_server(s->target)) {
845 health_adjust(objt_server(s->target), HANA_STATUS_L4_ERR);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100846
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100847 if (s->flags & SN_CURR_SESS) {
848 s->flags &= ~SN_CURR_SESS;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100849 objt_server(s->target)->cur_sess--;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100850 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100851 }
852
853 /* ensure that we have enough retries left */
Willy Tarreauee28de02010-06-01 09:51:00 +0200854 si->conn_retries--;
855 if (si->conn_retries < 0) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100856 if (!si->err_type) {
857 si->err_type = SI_ET_CONN_ERR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100858 }
859
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100860 if (objt_server(s->target))
861 objt_server(s->target)->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100862 s->be->be_counters.failed_conns++;
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100863 sess_change_server(s, NULL);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100864 if (may_dequeue_tasks(objt_server(s->target), s->be))
865 process_srv_queue(objt_server(s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100866
867 /* shutw is enough so stop a connecting socket */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200868 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200869 si->ob->flags |= CF_WRITE_ERROR;
870 si->ib->flags |= CF_READ_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100871
872 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100873 if (s->srv_error)
874 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100875 return 0;
876 }
877
878 /* If the "redispatch" option is set on the backend, we are allowed to
879 * retry on another server for the last retry. In order to achieve this,
880 * we must mark the session unassigned, and eventually clear the DIRECT
881 * bit to ignore any persistence cookie. We won't count a retry nor a
882 * redispatch yet, because this will depend on what server is selected.
883 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100884 if (objt_server(s->target) && si->conn_retries == 0 &&
Willy Tarreau4de91492010-01-22 19:10:05 +0100885 s->be->options & PR_O_REDISP && !(s->flags & SN_FORCE_PRST)) {
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100886 sess_change_server(s, NULL);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100887 if (may_dequeue_tasks(objt_server(s->target), s->be))
888 process_srv_queue(objt_server(s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100889
890 s->flags &= ~(SN_DIRECT | SN_ASSIGNED | SN_ADDR_SET);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100891 si->state = SI_ST_REQ;
892 } else {
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100893 if (objt_server(s->target))
894 objt_server(s->target)->counters.retries++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100895 s->be->be_counters.retries++;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100896 si->state = SI_ST_ASS;
897 }
898
899 if (si->flags & SI_FL_ERR) {
900 /* The error was an asynchronous connection error, and we will
901 * likely have to retry connecting to the same server, most
902 * likely leading to the same result. To avoid this, we wait
903 * one second before retrying.
904 */
905
906 if (!si->err_type)
907 si->err_type = SI_ET_CONN_ERR;
908
909 si->state = SI_ST_TAR;
910 si->exp = tick_add(now_ms, MS_TO_TICKS(1000));
911 return 0;
912 }
913 return 0;
914}
915
916/*
917 * This function handles the transition between the SI_ST_CON state and the
Willy Tarreau85e7d002010-05-31 11:57:51 +0200918 * SI_ST_EST state. It must only be called after switching from SI_ST_CON (or
Willy Tarreau26d8c592012-05-07 18:12:14 +0200919 * SI_ST_INI) to SI_ST_EST, but only when a ->proto is defined.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100920 */
Simon Hormandec5be42011-06-08 09:19:07 +0900921static void sess_establish(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100922{
Willy Tarreau7421efb2012-07-02 15:11:27 +0200923 struct channel *req = si->ob;
924 struct channel *rep = si->ib;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100925
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100926 if (objt_server(s->target))
927 health_adjust(objt_server(s->target), HANA_STATUS_L4_OK);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100928
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100929 if (s->be->mode == PR_MODE_TCP) { /* let's allow immediate data connection in this case */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100930 /* if the user wants to log as soon as possible, without counting
931 * bytes from the server, then this is the right moment. */
Willy Tarreaud79a3b22012-12-28 09:40:16 +0100932 if (!LIST_ISEMPTY(&s->fe->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100933 s->logs.t_close = s->logs.t_connect; /* to get a valid end date */
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100934 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100935 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100936 }
937 else {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100938 s->txn.rsp.msg_state = HTTP_MSG_RPBEFORE;
939 /* reset hdr_idx which was already initialized by the request.
940 * right now, the http parser does it.
941 * hdr_idx_init(&s->txn.hdr_idx);
942 */
943 }
944
Willy Tarreau4e5b8282009-08-16 22:57:50 +0200945 rep->analysers |= s->fe->fe_rsp_ana | s->be->be_rsp_ana;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200946 rep->flags |= CF_READ_ATTACHED; /* producer is now attached */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200947 if (objt_conn(si->end)) {
Willy Tarreaud04e8582010-05-31 12:31:35 +0200948 /* real connections have timeouts */
949 req->wto = s->be->timeout.server;
950 rep->rto = s->be->timeout.server;
951 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100952 req->wex = TICK_ETERNITY;
953}
954
955/* Update stream interface status for input states SI_ST_ASS, SI_ST_QUE, SI_ST_TAR.
956 * Other input states are simply ignored.
957 * Possible output states are SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ, SI_ST_CON.
958 * Flags must have previously been updated for timeouts and other conditions.
959 */
Simon Hormandec5be42011-06-08 09:19:07 +0900960static void sess_update_stream_int(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100961{
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100962 struct server *srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +0100963
Willy Tarreau02d6cfc2012-03-01 18:19:58 +0100964 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 +0100965 now_ms, __FUNCTION__,
966 s,
967 s->req, s->rep,
968 s->req->rex, s->rep->wex,
969 s->req->flags, s->rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200970 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 +0100971
972 if (si->state == SI_ST_ASS) {
973 /* Server assigned to connection request, we have to try to connect now */
974 int conn_err;
975
976 conn_err = connect_server(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100977 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +0100978
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100979 if (conn_err == SN_ERR_NONE) {
980 /* state = SI_ST_CON now */
Willy Tarreau827aee92011-03-10 16:55:02 +0100981 if (srv)
982 srv_inc_sess_ctr(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100983 return;
984 }
985
986 /* We have received a synchronous error. We might have to
987 * abort, retry immediately or redispatch.
988 */
989 if (conn_err == SN_ERR_INTERNAL) {
990 if (!si->err_type) {
991 si->err_type = SI_ET_CONN_OTHER;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100992 }
993
Willy Tarreau827aee92011-03-10 16:55:02 +0100994 if (srv)
995 srv_inc_sess_ctr(srv);
996 if (srv)
997 srv->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100998 s->be->be_counters.failed_conns++;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100999
1000 /* release other sessions waiting for this server */
Willy Tarreaub89cfca2010-12-29 14:32:28 +01001001 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001002 if (may_dequeue_tasks(srv, s->be))
1003 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001004
1005 /* Failed and not retryable. */
Willy Tarreau73b013b2012-05-21 16:31:45 +02001006 si_shutr(si);
1007 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001008 si->ob->flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001009
1010 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1011
1012 /* no session was ever accounted for this server */
1013 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001014 if (s->srv_error)
1015 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001016 return;
1017 }
1018
1019 /* We are facing a retryable error, but we don't want to run a
1020 * turn-around now, as the problem is likely a source port
1021 * allocation problem, so we want to retry now.
1022 */
1023 si->state = SI_ST_CER;
1024 si->flags &= ~SI_FL_ERR;
1025 sess_update_st_cer(s, si);
1026 /* now si->state is one of SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ */
1027 return;
1028 }
1029 else if (si->state == SI_ST_QUE) {
1030 /* connection request was queued, check for any update */
1031 if (!s->pend_pos) {
1032 /* The connection is not in the queue anymore. Either
1033 * we have a server connection slot available and we
1034 * go directly to the assigned state, or we need to
1035 * load-balance first and go to the INI state.
1036 */
1037 si->exp = TICK_ETERNITY;
1038 if (unlikely(!(s->flags & SN_ASSIGNED)))
1039 si->state = SI_ST_REQ;
1040 else {
1041 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1042 si->state = SI_ST_ASS;
1043 }
1044 return;
1045 }
1046
1047 /* Connection request still in queue... */
1048 if (si->flags & SI_FL_EXP) {
1049 /* ... and timeout expired */
1050 si->exp = TICK_ETERNITY;
1051 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau827aee92011-03-10 16:55:02 +01001052 if (srv)
1053 srv->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001054 s->be->be_counters.failed_conns++;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001055 si_shutr(si);
1056 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001057 si->ob->flags |= CF_WRITE_TIMEOUT;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001058 if (!si->err_type)
1059 si->err_type = SI_ET_QUEUE_TO;
1060 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001061 if (s->srv_error)
1062 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001063 return;
1064 }
1065
1066 /* Connection remains in queue, check if we have to abort it */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001067 if ((si->ob->flags & (CF_READ_ERROR)) ||
1068 ((si->ob->flags & CF_SHUTW_NOW) && /* empty and client aborted */
Willy Tarreau8e21bb92012-08-24 22:40:29 +02001069 (channel_is_empty(si->ob) || s->be->options & PR_O_ABRT_CLOSE))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001070 /* give up */
1071 si->exp = TICK_ETERNITY;
1072 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau73b013b2012-05-21 16:31:45 +02001073 si_shutr(si);
1074 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001075 si->err_type |= SI_ET_QUEUE_ABRT;
1076 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001077 if (s->srv_error)
1078 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001079 return;
1080 }
1081
1082 /* Nothing changed */
1083 return;
1084 }
1085 else if (si->state == SI_ST_TAR) {
1086 /* Connection request might be aborted */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001087 if ((si->ob->flags & (CF_READ_ERROR)) ||
1088 ((si->ob->flags & CF_SHUTW_NOW) && /* empty and client aborted */
Willy Tarreau8e21bb92012-08-24 22:40:29 +02001089 (channel_is_empty(si->ob) || s->be->options & PR_O_ABRT_CLOSE))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001090 /* give up */
1091 si->exp = TICK_ETERNITY;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001092 si_shutr(si);
1093 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001094 si->err_type |= SI_ET_CONN_ABRT;
1095 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001096 if (s->srv_error)
1097 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001098 return;
1099 }
1100
1101 if (!(si->flags & SI_FL_EXP))
1102 return; /* still in turn-around */
1103
1104 si->exp = TICK_ETERNITY;
1105
1106 /* we keep trying on the same server as long as the session is
1107 * marked "assigned".
1108 * FIXME: Should we force a redispatch attempt when the server is down ?
1109 */
1110 if (s->flags & SN_ASSIGNED)
1111 si->state = SI_ST_ASS;
1112 else
1113 si->state = SI_ST_REQ;
1114 return;
1115 }
1116}
1117
Simon Hormandec5be42011-06-08 09:19:07 +09001118/* Set correct session termination flags in case no analyser has done it. It
1119 * also counts a failed request if the server state has not reached the request
1120 * stage.
1121 */
1122static void sess_set_term_flags(struct session *s)
1123{
1124 if (!(s->flags & SN_FINST_MASK)) {
1125 if (s->si[1].state < SI_ST_REQ) {
1126
1127 s->fe->fe_counters.failed_req++;
1128 if (s->listener->counters)
1129 s->listener->counters->failed_req++;
1130
1131 s->flags |= SN_FINST_R;
1132 }
1133 else if (s->si[1].state == SI_ST_QUE)
1134 s->flags |= SN_FINST_Q;
1135 else if (s->si[1].state < SI_ST_EST)
1136 s->flags |= SN_FINST_C;
1137 else if (s->si[1].state == SI_ST_EST || s->si[1].prev_state == SI_ST_EST)
1138 s->flags |= SN_FINST_D;
1139 else
1140 s->flags |= SN_FINST_L;
1141 }
1142}
1143
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001144/* This function initiates a server connection request on a stream interface
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001145 * already in SI_ST_REQ state. Upon success, the state goes to SI_ST_ASS for
1146 * a real connection to a server, indicating that a server has been assigned,
1147 * or SI_ST_EST for a successful connection to an applet. It may also return
1148 * SI_ST_QUE, or SI_ST_CLO upon error.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001149 */
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001150static void sess_prepare_conn_req(struct session *s, struct stream_interface *si)
1151{
1152 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 +01001153 now_ms, __FUNCTION__,
1154 s,
1155 s->req, s->rep,
1156 s->req->rex, s->rep->wex,
1157 s->req->flags, s->rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001158 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 +01001159
1160 if (si->state != SI_ST_REQ)
1161 return;
1162
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001163 if (unlikely(obj_type(s->target) == OBJ_TYPE_APPLET)) {
1164 /* the applet directly goes to the EST state */
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001165 struct appctx *appctx = objt_appctx(si->end);
1166
1167 if (!appctx || appctx->applet != __objt_applet(s->target))
1168 appctx = stream_int_register_handler(si, objt_applet(s->target));
1169
1170 if (!appctx) {
1171 /* No more memory, let's immediately abort. Force the
1172 * error code to ignore the ERR_LOCAL which is not a
1173 * real error.
1174 */
Willy Tarreau6bbb2f62013-12-09 17:14:23 +01001175 s->flags &= ~(SN_ERR_MASK | SN_FINST_MASK);
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001176
1177 si_shutr(si);
1178 si_shutw(si);
1179 si->ob->flags |= CF_WRITE_ERROR;
Willy Tarreau6bbb2f62013-12-09 17:14:23 +01001180 si->err_type = SI_ET_CONN_RES;
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001181 si->state = SI_ST_CLO;
1182 if (s->srv_error)
1183 s->srv_error(s, si);
1184 return;
1185 }
1186
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001187 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1188 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
1189 si->state = SI_ST_EST;
1190 si->err_type = SI_ET_NONE;
1191 si->exp = TICK_ETERNITY;
Willy Tarreaufac4bd12013-11-30 09:21:49 +01001192 /* let sess_establish() finish the job */
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001193 return;
1194 }
1195
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001196 /* Try to assign a server */
1197 if (srv_redispatch_connect(s) != 0) {
1198 /* We did not get a server. Either we queued the
1199 * connection request, or we encountered an error.
1200 */
1201 if (si->state == SI_ST_QUE)
1202 return;
1203
1204 /* we did not get any server, let's check the cause */
Willy Tarreau73b013b2012-05-21 16:31:45 +02001205 si_shutr(si);
1206 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001207 si->ob->flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001208 if (!si->err_type)
1209 si->err_type = SI_ET_CONN_OTHER;
1210 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001211 if (s->srv_error)
1212 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001213 return;
1214 }
1215
1216 /* The server is assigned */
1217 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1218 si->state = SI_ST_ASS;
1219}
1220
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001221/* This stream analyser checks the switching rules and changes the backend
Willy Tarreau4de91492010-01-22 19:10:05 +01001222 * if appropriate. The default_backend rule is also considered, then the
1223 * target backend's forced persistence rules are also evaluated last if any.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001224 * It returns 1 if the processing can continue on next analysers, or zero if it
1225 * either needs more data or wants to immediately abort the request.
1226 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001227static int process_switching_rules(struct session *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001228{
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001229 struct persist_rule *prst_rule;
Willy Tarreau4de91492010-01-22 19:10:05 +01001230
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001231 req->analysers &= ~an_bit;
1232 req->analyse_exp = TICK_ETERNITY;
1233
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001234 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 +02001235 now_ms, __FUNCTION__,
1236 s,
1237 req,
1238 req->rex, req->wex,
1239 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001240 req->buf->i,
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001241 req->analysers);
1242
1243 /* now check whether we have some switching rules for this request */
1244 if (!(s->flags & SN_BE_ASSIGNED)) {
1245 struct switching_rule *rule;
1246
1247 list_for_each_entry(rule, &s->fe->switching_rules, list) {
1248 int ret;
1249
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001250 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 +02001251 ret = acl_pass(ret);
1252 if (rule->cond->pol == ACL_COND_UNLESS)
1253 ret = !ret;
1254
1255 if (ret) {
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001256 if (!session_set_backend(s, rule->be.backend))
1257 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001258 break;
1259 }
1260 }
1261
1262 /* To ensure correct connection accounting on the backend, we
1263 * have to assign one if it was not set (eg: a listen). This
1264 * measure also takes care of correctly setting the default
1265 * backend if any.
1266 */
1267 if (!(s->flags & SN_BE_ASSIGNED))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001268 if (!session_set_backend(s, s->fe->defbe.be ? s->fe->defbe.be : s->be))
1269 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001270 }
1271
Willy Tarreaufb356202010-08-03 14:02:05 +02001272 /* we don't want to run the TCP or HTTP filters again if the backend has not changed */
1273 if (s->fe == s->be) {
1274 s->req->analysers &= ~AN_REQ_INSPECT_BE;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001275 s->req->analysers &= ~AN_REQ_HTTP_PROCESS_BE;
Willy Tarreaufb356202010-08-03 14:02:05 +02001276 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001277
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001278 /* 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 +01001279 * persistence rule, and report that in the session.
1280 */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001281 list_for_each_entry(prst_rule, &s->be->persist_rules, list) {
Willy Tarreau4de91492010-01-22 19:10:05 +01001282 int ret = 1;
1283
1284 if (prst_rule->cond) {
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001285 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 +01001286 ret = acl_pass(ret);
1287 if (prst_rule->cond->pol == ACL_COND_UNLESS)
1288 ret = !ret;
1289 }
1290
1291 if (ret) {
1292 /* no rule, or the rule matches */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001293 if (prst_rule->type == PERSIST_TYPE_FORCE) {
1294 s->flags |= SN_FORCE_PRST;
1295 } else {
1296 s->flags |= SN_IGNORE_PRST;
1297 }
Willy Tarreau4de91492010-01-22 19:10:05 +01001298 break;
1299 }
1300 }
1301
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001302 return 1;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001303
1304 sw_failed:
1305 /* immediately abort this request in case of allocation failure */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001306 channel_abort(s->req);
1307 channel_abort(s->rep);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001308
1309 if (!(s->flags & SN_ERR_MASK))
1310 s->flags |= SN_ERR_RESOURCE;
1311 if (!(s->flags & SN_FINST_MASK))
1312 s->flags |= SN_FINST_R;
1313
1314 s->txn.status = 500;
1315 s->req->analysers = 0;
1316 s->req->analyse_exp = TICK_ETERNITY;
1317 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001318}
1319
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001320/* This stream analyser works on a request. It applies all use-server rules on
1321 * it then returns 1. The data must already be present in the buffer otherwise
1322 * they won't match. It always returns 1.
1323 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001324static int process_server_rules(struct session *s, struct channel *req, int an_bit)
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001325{
1326 struct proxy *px = s->be;
1327 struct server_rule *rule;
1328
1329 DPRINTF(stderr,"[%u] %s: session=%p b=%p, exp(r,w)=%u,%u bf=%08x bl=%d analysers=%02x\n",
1330 now_ms, __FUNCTION__,
1331 s,
1332 req,
1333 req->rex, req->wex,
1334 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001335 req->buf->i + req->buf->o,
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001336 req->analysers);
1337
1338 if (!(s->flags & SN_ASSIGNED)) {
1339 list_for_each_entry(rule, &px->server_rules, list) {
1340 int ret;
1341
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001342 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 +02001343 ret = acl_pass(ret);
1344 if (rule->cond->pol == ACL_COND_UNLESS)
1345 ret = !ret;
1346
1347 if (ret) {
1348 struct server *srv = rule->srv.ptr;
1349
1350 if ((srv->state & SRV_RUNNING) ||
1351 (px->options & PR_O_PERSIST) ||
1352 (s->flags & SN_FORCE_PRST)) {
1353 s->flags |= SN_DIRECT | SN_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001354 s->target = &srv->obj_type;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001355 break;
1356 }
1357 /* if the server is not UP, let's go on with next rules
1358 * just in case another one is suited.
1359 */
1360 }
1361 }
1362 }
1363
1364 req->analysers &= ~an_bit;
1365 req->analyse_exp = TICK_ETERNITY;
1366 return 1;
1367}
1368
Emeric Brun1d33b292010-01-04 15:47:17 +01001369/* This stream analyser works on a request. It applies all sticking rules on
1370 * it then returns 1. The data must already be present in the buffer otherwise
1371 * they won't match. It always returns 1.
1372 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001373static int process_sticking_rules(struct session *s, struct channel *req, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001374{
1375 struct proxy *px = s->be;
1376 struct sticking_rule *rule;
1377
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001378 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 +01001379 now_ms, __FUNCTION__,
1380 s,
1381 req,
1382 req->rex, req->wex,
1383 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001384 req->buf->i,
Emeric Brun1d33b292010-01-04 15:47:17 +01001385 req->analysers);
1386
1387 list_for_each_entry(rule, &px->sticking_rules, list) {
1388 int ret = 1 ;
1389 int i;
1390
Willy Tarreau9667a802013-12-09 12:52:13 +01001391 /* Only the first stick store-request of each table is applied
1392 * and other ones are ignored. The purpose is to allow complex
1393 * configurations which look for multiple entries by decreasing
1394 * order of precision and to stop at the first which matches.
1395 * An example could be a store of the IP address from an HTTP
1396 * header first, then from the source if not found.
1397 */
Emeric Brun1d33b292010-01-04 15:47:17 +01001398 for (i = 0; i < s->store_count; i++) {
1399 if (rule->table.t == s->store[i].table)
1400 break;
1401 }
1402
1403 if (i != s->store_count)
1404 continue;
1405
1406 if (rule->cond) {
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001407 ret = acl_exec_cond(rule->cond, px, s, &s->txn, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001408 ret = acl_pass(ret);
1409 if (rule->cond->pol == ACL_COND_UNLESS)
1410 ret = !ret;
1411 }
1412
1413 if (ret) {
1414 struct stktable_key *key;
1415
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001416 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 +01001417 if (!key)
1418 continue;
1419
1420 if (rule->flags & STK_IS_MATCH) {
1421 struct stksess *ts;
1422
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001423 if ((ts = stktable_lookup_key(rule->table.t, key)) != NULL) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001424 if (!(s->flags & SN_ASSIGNED)) {
1425 struct eb32_node *node;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001426 void *ptr;
Emeric Brun1d33b292010-01-04 15:47:17 +01001427
1428 /* srv found in table */
Willy Tarreau13c29de2010-06-06 16:40:39 +02001429 ptr = stktable_data_ptr(rule->table.t, ts, STKTABLE_DT_SERVER_ID);
1430 node = eb32_lookup(&px->conf.used_server_id, stktable_data_cast(ptr, server_id));
Emeric Brun1d33b292010-01-04 15:47:17 +01001431 if (node) {
1432 struct server *srv;
1433
1434 srv = container_of(node, struct server, conf.id);
Willy Tarreau4de91492010-01-22 19:10:05 +01001435 if ((srv->state & SRV_RUNNING) ||
1436 (px->options & PR_O_PERSIST) ||
1437 (s->flags & SN_FORCE_PRST)) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001438 s->flags |= SN_DIRECT | SN_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001439 s->target = &srv->obj_type;
Emeric Brun1d33b292010-01-04 15:47:17 +01001440 }
1441 }
1442 }
Emeric Brun85e77c72010-09-23 18:16:52 +02001443 stktable_touch(rule->table.t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001444 }
1445 }
1446 if (rule->flags & STK_IS_STORE) {
1447 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
1448 struct stksess *ts;
1449
1450 ts = stksess_new(rule->table.t, key);
1451 if (ts) {
1452 s->store[s->store_count].table = rule->table.t;
1453 s->store[s->store_count++].ts = ts;
1454 }
1455 }
1456 }
1457 }
1458 }
1459
1460 req->analysers &= ~an_bit;
1461 req->analyse_exp = TICK_ETERNITY;
1462 return 1;
1463}
1464
1465/* This stream analyser works on a response. It applies all store rules on it
1466 * then returns 1. The data must already be present in the buffer otherwise
1467 * they won't match. It always returns 1.
1468 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001469static int process_store_rules(struct session *s, struct channel *rep, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001470{
1471 struct proxy *px = s->be;
1472 struct sticking_rule *rule;
1473 int i;
Willy Tarreau9667a802013-12-09 12:52:13 +01001474 int nbreq = s->store_count;
Emeric Brun1d33b292010-01-04 15:47:17 +01001475
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001476 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 +01001477 now_ms, __FUNCTION__,
1478 s,
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001479 rep,
1480 rep->rex, rep->wex,
1481 rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001482 rep->buf->i,
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001483 rep->analysers);
Emeric Brun1d33b292010-01-04 15:47:17 +01001484
1485 list_for_each_entry(rule, &px->storersp_rules, list) {
1486 int ret = 1 ;
Emeric Brun1d33b292010-01-04 15:47:17 +01001487
Willy Tarreau9667a802013-12-09 12:52:13 +01001488 /* Only the first stick store-response of each table is applied
1489 * and other ones are ignored. The purpose is to allow complex
1490 * configurations which look for multiple entries by decreasing
1491 * order of precision and to stop at the first which matches.
1492 * An example could be a store of a set-cookie value, with a
1493 * fallback to a parameter found in a 302 redirect.
1494 *
1495 * The store-response rules are not allowed to override the
1496 * store-request rules for the same table, but they may coexist.
1497 * Thus we can have up to one store-request entry and one store-
1498 * response entry for the same table at any time.
1499 */
1500 for (i = nbreq; i < s->store_count; i++) {
1501 if (rule->table.t == s->store[i].table)
1502 break;
1503 }
1504
1505 /* skip existing entries for this table */
1506 if (i < s->store_count)
1507 continue;
1508
Emeric Brun1d33b292010-01-04 15:47:17 +01001509 if (rule->cond) {
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001510 ret = acl_exec_cond(rule->cond, px, s, &s->txn, SMP_OPT_DIR_RES|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001511 ret = acl_pass(ret);
1512 if (rule->cond->pol == ACL_COND_UNLESS)
1513 ret = !ret;
1514 }
1515
1516 if (ret) {
1517 struct stktable_key *key;
1518
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001519 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 +01001520 if (!key)
1521 continue;
1522
Willy Tarreau37e340c2013-12-06 23:05:21 +01001523 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001524 struct stksess *ts;
1525
1526 ts = stksess_new(rule->table.t, key);
1527 if (ts) {
1528 s->store[s->store_count].table = rule->table.t;
Emeric Brun1d33b292010-01-04 15:47:17 +01001529 s->store[s->store_count++].ts = ts;
1530 }
1531 }
1532 }
1533 }
1534
1535 /* process store request and store response */
1536 for (i = 0; i < s->store_count; i++) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001537 struct stksess *ts;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001538 void *ptr;
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001539
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001540 if (objt_server(s->target) && objt_server(s->target)->state & SRV_NON_STICK) {
Simon Hormanfa461682011-06-25 09:39:49 +09001541 stksess_free(s->store[i].table, s->store[i].ts);
1542 s->store[i].ts = NULL;
1543 continue;
1544 }
1545
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001546 ts = stktable_lookup(s->store[i].table, s->store[i].ts);
1547 if (ts) {
1548 /* the entry already existed, we can free ours */
Emeric Brun85e77c72010-09-23 18:16:52 +02001549 stktable_touch(s->store[i].table, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001550 stksess_free(s->store[i].table, s->store[i].ts);
Emeric Brun1d33b292010-01-04 15:47:17 +01001551 }
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001552 else
Emeric Brun85e77c72010-09-23 18:16:52 +02001553 ts = stktable_store(s->store[i].table, s->store[i].ts, 1);
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001554
1555 s->store[i].ts = NULL;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001556 ptr = stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_ID);
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001557 stktable_data_cast(ptr, server_id) = objt_server(s->target)->puid;
Emeric Brun1d33b292010-01-04 15:47:17 +01001558 }
Willy Tarreau2a164ee2010-06-18 09:57:45 +02001559 s->store_count = 0; /* everything is stored */
Emeric Brun1d33b292010-01-04 15:47:17 +01001560
1561 rep->analysers &= ~an_bit;
1562 rep->analyse_exp = TICK_ETERNITY;
1563 return 1;
1564}
1565
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001566/* This macro is very specific to the function below. See the comments in
1567 * process_session() below to understand the logic and the tests.
1568 */
1569#define UPDATE_ANALYSERS(real, list, back, flag) { \
1570 list = (((list) & ~(flag)) | ~(back)) & (real); \
1571 back = real; \
1572 if (!(list)) \
1573 break; \
1574 if (((list) ^ ((list) & ((list) - 1))) < (flag)) \
1575 continue; \
1576}
1577
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001578/* Processes the client, server, request and response jobs of a session task,
1579 * then puts it back to the wait queue in a clean state, or cleans up its
1580 * resources if it must be deleted. Returns in <next> the date the task wants
1581 * to be woken up, or TICK_ETERNITY. In order not to call all functions for
1582 * nothing too many times, the request and response buffers flags are monitored
1583 * and each function is called only if at least another function has changed at
1584 * least one flag it is interested in.
1585 */
Willy Tarreau26c25062009-03-08 09:38:41 +01001586struct task *process_session(struct task *t)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001587{
Willy Tarreau827aee92011-03-10 16:55:02 +01001588 struct server *srv;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001589 struct session *s = t->context;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001590 unsigned int rqf_last, rpf_last;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001591 unsigned int rq_prod_last, rq_cons_last;
1592 unsigned int rp_cons_last, rp_prod_last;
Willy Tarreau576507f2010-01-07 00:09:04 +01001593 unsigned int req_ana_back;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001594
1595 //DPRINTF(stderr, "%s:%d: cs=%d ss=%d(%d) rqf=0x%08x rpf=0x%08x\n", __FUNCTION__, __LINE__,
1596 // s->si[0].state, s->si[1].state, s->si[1].err_type, s->req->flags, s->rep->flags);
1597
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001598 /* this data may be no longer valid, clear it */
1599 memset(&s->txn.auth, 0, sizeof(s->txn.auth));
1600
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001601 /* This flag must explicitly be set every time */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001602 s->req->flags &= ~CF_READ_NOEXP;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001603
1604 /* Keep a copy of req/rep flags so that we can detect shutdowns */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001605 rqf_last = s->req->flags & ~CF_MASK_ANALYSER;
1606 rpf_last = s->rep->flags & ~CF_MASK_ANALYSER;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001607
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001608 /* we don't want the stream interface functions to recursively wake us up */
1609 if (s->req->prod->owner == t)
1610 s->req->prod->flags |= SI_FL_DONT_WAKE;
1611 if (s->req->cons->owner == t)
1612 s->req->cons->flags |= SI_FL_DONT_WAKE;
1613
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001614 /* 1a: Check for low level timeouts if needed. We just set a flag on
1615 * stream interfaces when their timeouts have expired.
1616 */
1617 if (unlikely(t->state & TASK_WOKEN_TIMER)) {
1618 stream_int_check_timeouts(&s->si[0]);
1619 stream_int_check_timeouts(&s->si[1]);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001620
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001621 /* check channel timeouts, and close the corresponding stream interfaces
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001622 * for future reads or writes. Note: this will also concern upper layers
1623 * but we do not touch any other flag. We must be careful and correctly
1624 * detect state changes when calling them.
1625 */
1626
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001627 channel_check_timeouts(s->req);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001628
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001629 if (unlikely((s->req->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
Willy Tarreau14641402009-12-29 14:49:56 +01001630 s->req->cons->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001631 si_shutw(s->req->cons);
Willy Tarreau14641402009-12-29 14:49:56 +01001632 }
1633
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001634 if (unlikely((s->req->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001635 if (s->req->prod->flags & SI_FL_NOHALF)
1636 s->req->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001637 si_shutr(s->req->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001638 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001639
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001640 channel_check_timeouts(s->rep);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001641
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001642 if (unlikely((s->rep->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
Willy Tarreau14641402009-12-29 14:49:56 +01001643 s->rep->cons->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001644 si_shutw(s->rep->cons);
Willy Tarreau14641402009-12-29 14:49:56 +01001645 }
1646
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001647 if (unlikely((s->rep->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001648 if (s->rep->prod->flags & SI_FL_NOHALF)
1649 s->rep->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001650 si_shutr(s->rep->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001651 }
Willy Tarreau798f4322012-11-08 14:49:17 +01001652
1653 /* Once in a while we're woken up because the task expires. But
1654 * this does not necessarily mean that a timeout has been reached.
1655 * So let's not run a whole session processing if only an expiration
1656 * timeout needs to be refreshed.
1657 */
1658 if (!((s->req->flags | s->rep->flags) &
1659 (CF_SHUTR|CF_READ_ACTIVITY|CF_READ_TIMEOUT|CF_SHUTW|
1660 CF_WRITE_ACTIVITY|CF_WRITE_TIMEOUT|CF_ANA_TIMEOUT)) &&
1661 !((s->si[0].flags | s->si[1].flags) & (SI_FL_EXP|SI_FL_ERR)) &&
1662 ((t->state & TASK_WOKEN_ANY) == TASK_WOKEN_TIMER))
1663 goto update_exp_and_leave;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001664 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001665
1666 /* 1b: check for low-level errors reported at the stream interface.
1667 * First we check if it's a retryable error (in which case we don't
1668 * want to tell the buffer). Otherwise we report the error one level
1669 * upper by setting flags into the buffers. Note that the side towards
1670 * the client cannot have connect (hence retryable) errors. Also, the
1671 * connection setup code must be able to deal with any type of abort.
1672 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001673 srv = objt_server(s->target);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001674 if (unlikely(s->si[0].flags & SI_FL_ERR)) {
1675 if (s->si[0].state == SI_ST_EST || s->si[0].state == SI_ST_DIS) {
Willy Tarreau73b013b2012-05-21 16:31:45 +02001676 si_shutr(&s->si[0]);
1677 si_shutw(&s->si[0]);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001678 stream_int_report_error(&s->si[0]);
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001679 if (!(s->req->analysers) && !(s->rep->analysers)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001680 s->be->be_counters.cli_aborts++;
1681 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001682 if (srv)
1683 srv->counters.cli_aborts++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001684 if (!(s->flags & SN_ERR_MASK))
1685 s->flags |= SN_ERR_CLICL;
1686 if (!(s->flags & SN_FINST_MASK))
1687 s->flags |= SN_FINST_D;
1688 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001689 }
1690 }
1691
1692 if (unlikely(s->si[1].flags & SI_FL_ERR)) {
1693 if (s->si[1].state == SI_ST_EST || s->si[1].state == SI_ST_DIS) {
Willy Tarreau73b013b2012-05-21 16:31:45 +02001694 si_shutr(&s->si[1]);
1695 si_shutw(&s->si[1]);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001696 stream_int_report_error(&s->si[1]);
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001697 s->be->be_counters.failed_resp++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001698 if (srv)
1699 srv->counters.failed_resp++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001700 if (!(s->req->analysers) && !(s->rep->analysers)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001701 s->be->be_counters.srv_aborts++;
1702 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001703 if (srv)
1704 srv->counters.srv_aborts++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001705 if (!(s->flags & SN_ERR_MASK))
1706 s->flags |= SN_ERR_SRVCL;
1707 if (!(s->flags & SN_FINST_MASK))
1708 s->flags |= SN_FINST_D;
1709 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001710 }
1711 /* note: maybe we should process connection errors here ? */
1712 }
1713
1714 if (s->si[1].state == SI_ST_CON) {
1715 /* we were trying to establish a connection on the server side,
1716 * maybe it succeeded, maybe it failed, maybe we timed out, ...
1717 */
1718 if (unlikely(!sess_update_st_con_tcp(s, &s->si[1])))
1719 sess_update_st_cer(s, &s->si[1]);
1720 else if (s->si[1].state == SI_ST_EST)
1721 sess_establish(s, &s->si[1]);
1722
1723 /* state is now one of SI_ST_CON (still in progress), SI_ST_EST
1724 * (established), SI_ST_DIS (abort), SI_ST_CLO (last error),
1725 * SI_ST_ASS/SI_ST_TAR/SI_ST_REQ for retryable errors.
1726 */
1727 }
1728
Willy Tarreau815a9b22010-07-27 17:15:12 +02001729 rq_prod_last = s->si[0].state;
1730 rq_cons_last = s->si[1].state;
1731 rp_cons_last = s->si[0].state;
1732 rp_prod_last = s->si[1].state;
1733
1734 resync_stream_interface:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001735 /* Check for connection closure */
1736
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001737 DPRINTF(stderr,
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001738 "[%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 +01001739 now_ms, __FUNCTION__, __LINE__,
1740 t,
1741 s, s->flags,
1742 s->req, s->rep,
1743 s->req->rex, s->rep->wex,
1744 s->req->flags, s->rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001745 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 +01001746 s->rep->cons->err_type, s->req->cons->err_type,
Willy Tarreauee28de02010-06-01 09:51:00 +02001747 s->req->cons->conn_retries);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001748
1749 /* nothing special to be done on client side */
1750 if (unlikely(s->req->prod->state == SI_ST_DIS))
1751 s->req->prod->state = SI_ST_CLO;
1752
1753 /* When a server-side connection is released, we have to count it and
1754 * check for pending connections on this server.
1755 */
1756 if (unlikely(s->req->cons->state == SI_ST_DIS)) {
1757 s->req->cons->state = SI_ST_CLO;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001758 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01001759 if (srv) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001760 if (s->flags & SN_CURR_SESS) {
1761 s->flags &= ~SN_CURR_SESS;
Willy Tarreau827aee92011-03-10 16:55:02 +01001762 srv->cur_sess--;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001763 }
1764 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001765 if (may_dequeue_tasks(srv, s->be))
1766 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001767 }
1768 }
1769
1770 /*
1771 * Note: of the transient states (REQ, CER, DIS), only REQ may remain
1772 * at this point.
1773 */
1774
Willy Tarreau0be0ef92009-03-08 19:20:25 +01001775 resync_request:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001776 /* Analyse request */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001777 if (((s->req->flags & ~rqf_last) & CF_MASK_ANALYSER) ||
1778 ((s->req->flags ^ rqf_last) & CF_MASK_STATIC) ||
Willy Tarreau815a9b22010-07-27 17:15:12 +02001779 s->si[0].state != rq_prod_last ||
1780 s->si[1].state != rq_cons_last) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001781 unsigned int flags = s->req->flags;
1782
1783 if (s->req->prod->state >= SI_ST_EST) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001784 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001785 unsigned int ana_list;
1786 unsigned int ana_back;
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001787
Willy Tarreau90deb182010-01-07 00:20:41 +01001788 /* it's up to the analysers to stop new connections,
1789 * disable reading or closing. Note: if an analyser
1790 * disables any of these bits, it is responsible for
1791 * enabling them again when it disables itself, so
1792 * that other analysers are called in similar conditions.
1793 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001794 channel_auto_read(s->req);
1795 channel_auto_connect(s->req);
1796 channel_auto_close(s->req);
Willy Tarreauedcf6682008-11-30 23:15:34 +01001797
1798 /* We will call all analysers for which a bit is set in
1799 * s->req->analysers, following the bit order from LSB
1800 * to MSB. The analysers must remove themselves from
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001801 * the list when not needed. Any analyser may return 0
1802 * to break out of the loop, either because of missing
1803 * data to take a decision, or because it decides to
1804 * kill the session. We loop at least once through each
1805 * analyser, and we may loop again if other analysers
1806 * are added in the middle.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001807 *
1808 * We build a list of analysers to run. We evaluate all
1809 * of these analysers in the order of the lower bit to
1810 * the higher bit. This ordering is very important.
1811 * An analyser will often add/remove other analysers,
1812 * including itself. Any changes to itself have no effect
1813 * on the loop. If it removes any other analysers, we
1814 * want those analysers not to be called anymore during
1815 * this loop. If it adds an analyser that is located
1816 * after itself, we want it to be scheduled for being
1817 * processed during the loop. If it adds an analyser
1818 * which is located before it, we want it to switch to
1819 * it immediately, even if it has already been called
1820 * once but removed since.
1821 *
1822 * In order to achieve this, we compare the analyser
1823 * list after the call with a copy of it before the
1824 * call. The work list is fed with analyser bits that
1825 * appeared during the call. Then we compare previous
1826 * work list with the new one, and check the bits that
1827 * appeared. If the lowest of these bits is lower than
1828 * the current bit, it means we have enabled a previous
1829 * analyser and must immediately loop again.
Willy Tarreauedcf6682008-11-30 23:15:34 +01001830 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001831
1832 ana_list = ana_back = s->req->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001833 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001834 /* Warning! ensure that analysers are always placed in ascending order! */
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001835
Willy Tarreaufb356202010-08-03 14:02:05 +02001836 if (ana_list & AN_REQ_INSPECT_FE) {
1837 if (!tcp_inspect_request(s, s->req, AN_REQ_INSPECT_FE))
Willy Tarreauedcf6682008-11-30 23:15:34 +01001838 break;
Willy Tarreaufb356202010-08-03 14:02:05 +02001839 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_INSPECT_FE);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001840 }
Willy Tarreauedcf6682008-11-30 23:15:34 +01001841
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001842 if (ana_list & AN_REQ_WAIT_HTTP) {
Willy Tarreau3a816292009-07-07 10:55:49 +02001843 if (!http_wait_for_request(s, s->req, AN_REQ_WAIT_HTTP))
Willy Tarreaud787e662009-07-07 10:14:51 +02001844 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001845 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_WAIT_HTTP);
Willy Tarreaud787e662009-07-07 10:14:51 +02001846 }
1847
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001848 if (ana_list & AN_REQ_HTTP_PROCESS_FE) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001849 if (!http_process_req_common(s, s->req, AN_REQ_HTTP_PROCESS_FE, s->fe))
1850 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001851 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_PROCESS_FE);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001852 }
1853
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001854 if (ana_list & AN_REQ_SWITCHING_RULES) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001855 if (!process_switching_rules(s, s->req, AN_REQ_SWITCHING_RULES))
1856 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001857 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_SWITCHING_RULES);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001858 }
1859
Willy Tarreaufb356202010-08-03 14:02:05 +02001860 if (ana_list & AN_REQ_INSPECT_BE) {
1861 if (!tcp_inspect_request(s, s->req, AN_REQ_INSPECT_BE))
1862 break;
1863 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_INSPECT_BE);
1864 }
1865
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001866 if (ana_list & AN_REQ_HTTP_PROCESS_BE) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001867 if (!http_process_req_common(s, s->req, AN_REQ_HTTP_PROCESS_BE, s->be))
1868 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001869 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_PROCESS_BE);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001870 }
1871
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001872 if (ana_list & AN_REQ_HTTP_TARPIT) {
Willy Tarreau3a816292009-07-07 10:55:49 +02001873 if (!http_process_tarpit(s, s->req, AN_REQ_HTTP_TARPIT))
Willy Tarreau60b85b02008-11-30 23:28:40 +01001874 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001875 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_TARPIT);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001876 }
Willy Tarreau60b85b02008-11-30 23:28:40 +01001877
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001878 if (ana_list & AN_REQ_SRV_RULES) {
1879 if (!process_server_rules(s, s->req, AN_REQ_SRV_RULES))
1880 break;
1881 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_SRV_RULES);
1882 }
1883
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001884 if (ana_list & AN_REQ_HTTP_INNER) {
Willy Tarreauc465fd72009-08-31 00:17:18 +02001885 if (!http_process_request(s, s->req, AN_REQ_HTTP_INNER))
1886 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001887 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_INNER);
Willy Tarreauc465fd72009-08-31 00:17:18 +02001888 }
1889
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001890 if (ana_list & AN_REQ_HTTP_BODY) {
Willy Tarreau3a816292009-07-07 10:55:49 +02001891 if (!http_process_request_body(s, s->req, AN_REQ_HTTP_BODY))
Willy Tarreaud34af782008-11-30 23:36:37 +01001892 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001893 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_BODY);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001894 }
Emeric Brun647caf12009-06-30 17:57:00 +02001895
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001896 if (ana_list & AN_REQ_PRST_RDP_COOKIE) {
Emeric Brun647caf12009-06-30 17:57:00 +02001897 if (!tcp_persist_rdp_cookie(s, s->req, AN_REQ_PRST_RDP_COOKIE))
1898 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001899 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_PRST_RDP_COOKIE);
Emeric Brun647caf12009-06-30 17:57:00 +02001900 }
Willy Tarreaud98cf932009-12-27 22:54:55 +01001901
Emeric Brun1d33b292010-01-04 15:47:17 +01001902 if (ana_list & AN_REQ_STICKING_RULES) {
1903 if (!process_sticking_rules(s, s->req, AN_REQ_STICKING_RULES))
1904 break;
1905 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_STICKING_RULES);
1906 }
1907
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001908 if (ana_list & AN_REQ_HTTP_XFER_BODY) {
Willy Tarreaud98cf932009-12-27 22:54:55 +01001909 if (!http_request_forward_body(s, s->req, AN_REQ_HTTP_XFER_BODY))
1910 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001911 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_XFER_BODY);
Willy Tarreaud98cf932009-12-27 22:54:55 +01001912 }
Willy Tarreaue34070e2010-01-08 00:32:27 +01001913 break;
1914 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001915 }
Willy Tarreau84455332009-03-15 22:34:05 +01001916
Willy Tarreau815a9b22010-07-27 17:15:12 +02001917 rq_prod_last = s->si[0].state;
1918 rq_cons_last = s->si[1].state;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001919 s->req->flags &= ~CF_WAKE_ONCE;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001920 rqf_last = s->req->flags;
1921
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001922 if ((s->req->flags ^ flags) & CF_MASK_STATIC)
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001923 goto resync_request;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001924 }
1925
Willy Tarreau576507f2010-01-07 00:09:04 +01001926 /* we'll monitor the request analysers while parsing the response,
1927 * because some response analysers may indirectly enable new request
1928 * analysers (eg: HTTP keep-alive).
1929 */
1930 req_ana_back = s->req->analysers;
1931
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001932 resync_response:
1933 /* Analyse response */
1934
Willy Tarreaub31c9712012-11-11 23:05:39 +01001935 if (((s->rep->flags & ~rpf_last) & CF_MASK_ANALYSER) ||
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001936 (s->rep->flags ^ rpf_last) & CF_MASK_STATIC ||
Willy Tarreau815a9b22010-07-27 17:15:12 +02001937 s->si[0].state != rp_cons_last ||
1938 s->si[1].state != rp_prod_last) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001939 unsigned int flags = s->rep->flags;
1940
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001941 if ((s->rep->flags & CF_MASK_ANALYSER) &&
Willy Tarreau0499e352010-12-17 07:13:42 +01001942 (s->rep->analysers & AN_REQ_WAIT_HTTP)) {
1943 /* Due to HTTP pipelining, the HTTP request analyser might be waiting
1944 * for some free space in the response buffer, so we might need to call
1945 * it when something changes in the response buffer, but still we pass
1946 * it the request buffer. Note that the SI state might very well still
1947 * be zero due to us returning a flow of redirects!
1948 */
1949 s->rep->analysers &= ~AN_REQ_WAIT_HTTP;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001950 s->req->flags |= CF_WAKE_ONCE;
Willy Tarreau0499e352010-12-17 07:13:42 +01001951 }
1952
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001953 if (s->rep->prod->state >= SI_ST_EST) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001954 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001955 unsigned int ana_list;
1956 unsigned int ana_back;
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001957
Willy Tarreau90deb182010-01-07 00:20:41 +01001958 /* it's up to the analysers to stop disable reading or
1959 * closing. Note: if an analyser disables any of these
1960 * bits, it is responsible for enabling them again when
1961 * it disables itself, so that other analysers are called
1962 * in similar conditions.
1963 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001964 channel_auto_read(s->rep);
1965 channel_auto_close(s->rep);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001966
1967 /* We will call all analysers for which a bit is set in
1968 * s->rep->analysers, following the bit order from LSB
1969 * to MSB. The analysers must remove themselves from
1970 * the list when not needed. Any analyser may return 0
1971 * to break out of the loop, either because of missing
1972 * data to take a decision, or because it decides to
1973 * kill the session. We loop at least once through each
1974 * analyser, and we may loop again if other analysers
1975 * are added in the middle.
1976 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001977
1978 ana_list = ana_back = s->rep->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001979 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001980 /* Warning! ensure that analysers are always placed in ascending order! */
1981
Emeric Brun97679e72010-09-23 17:56:44 +02001982 if (ana_list & AN_RES_INSPECT) {
1983 if (!tcp_inspect_response(s, s->rep, AN_RES_INSPECT))
1984 break;
1985 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_INSPECT);
1986 }
1987
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001988 if (ana_list & AN_RES_WAIT_HTTP) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001989 if (!http_wait_for_response(s, s->rep, AN_RES_WAIT_HTTP))
1990 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001991 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_WAIT_HTTP);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001992 }
1993
Emeric Brun1d33b292010-01-04 15:47:17 +01001994 if (ana_list & AN_RES_STORE_RULES) {
1995 if (!process_store_rules(s, s->rep, AN_RES_STORE_RULES))
1996 break;
1997 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_STORE_RULES);
1998 }
1999
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002000 if (ana_list & AN_RES_HTTP_PROCESS_BE) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002001 if (!http_process_res_common(s, s->rep, AN_RES_HTTP_PROCESS_BE, s->be))
2002 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002003 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_HTTP_PROCESS_BE);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002004 }
Willy Tarreaud98cf932009-12-27 22:54:55 +01002005
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002006 if (ana_list & AN_RES_HTTP_XFER_BODY) {
Willy Tarreaud98cf932009-12-27 22:54:55 +01002007 if (!http_response_forward_body(s, s->rep, AN_RES_HTTP_XFER_BODY))
2008 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002009 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_HTTP_XFER_BODY);
Willy Tarreaud98cf932009-12-27 22:54:55 +01002010 }
Willy Tarreaue34070e2010-01-08 00:32:27 +01002011 break;
2012 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002013 }
2014
Willy Tarreau815a9b22010-07-27 17:15:12 +02002015 rp_cons_last = s->si[0].state;
2016 rp_prod_last = s->si[1].state;
2017 rpf_last = s->rep->flags;
2018
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002019 if ((s->rep->flags ^ flags) & CF_MASK_STATIC)
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002020 goto resync_response;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002021 }
2022
Willy Tarreau576507f2010-01-07 00:09:04 +01002023 /* maybe someone has added some request analysers, so we must check and loop */
2024 if (s->req->analysers & ~req_ana_back)
2025 goto resync_request;
2026
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002027 if ((s->req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0499e352010-12-17 07:13:42 +01002028 goto resync_request;
2029
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002030 /* FIXME: here we should call protocol handlers which rely on
2031 * both buffers.
2032 */
2033
2034
2035 /*
Willy Tarreauae526782010-03-04 20:34:23 +01002036 * Now we propagate unhandled errors to the session. Normally
2037 * we're just in a data phase here since it means we have not
2038 * seen any analyser who could set an error status.
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002039 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002040 srv = objt_server(s->target);
Willy Tarreau2f976e12010-11-11 14:28:47 +01002041 if (unlikely(!(s->flags & SN_ERR_MASK))) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002042 if (s->req->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002043 /* Report it if the client got an error or a read timeout expired */
Willy Tarreau84455332009-03-15 22:34:05 +01002044 s->req->analysers = 0;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002045 if (s->req->flags & CF_READ_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002046 s->be->be_counters.cli_aborts++;
2047 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002048 if (srv)
2049 srv->counters.cli_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002050 s->flags |= SN_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002051 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002052 else if (s->req->flags & CF_READ_TIMEOUT) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002053 s->be->be_counters.cli_aborts++;
2054 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002055 if (srv)
2056 srv->counters.cli_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002057 s->flags |= SN_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01002058 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002059 else if (s->req->flags & CF_WRITE_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002060 s->be->be_counters.srv_aborts++;
2061 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002062 if (srv)
2063 srv->counters.srv_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002064 s->flags |= SN_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002065 }
2066 else {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002067 s->be->be_counters.srv_aborts++;
2068 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002069 if (srv)
2070 srv->counters.srv_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002071 s->flags |= SN_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002072 }
Willy Tarreau84455332009-03-15 22:34:05 +01002073 sess_set_term_flags(s);
2074 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002075 else if (s->rep->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002076 /* Report it if the server got an error or a read timeout expired */
2077 s->rep->analysers = 0;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002078 if (s->rep->flags & CF_READ_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002079 s->be->be_counters.srv_aborts++;
2080 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002081 if (srv)
2082 srv->counters.srv_aborts++;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002083 s->flags |= SN_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002084 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002085 else if (s->rep->flags & CF_READ_TIMEOUT) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002086 s->be->be_counters.srv_aborts++;
2087 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002088 if (srv)
2089 srv->counters.srv_aborts++;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002090 s->flags |= SN_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002091 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002092 else if (s->rep->flags & CF_WRITE_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002093 s->be->be_counters.cli_aborts++;
2094 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002095 if (srv)
2096 srv->counters.cli_aborts++;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002097 s->flags |= SN_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002098 }
2099 else {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002100 s->be->be_counters.cli_aborts++;
2101 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002102 if (srv)
2103 srv->counters.cli_aborts++;
Willy Tarreauae526782010-03-04 20:34:23 +01002104 s->flags |= SN_ERR_CLITO;
2105 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002106 sess_set_term_flags(s);
2107 }
Willy Tarreau84455332009-03-15 22:34:05 +01002108 }
2109
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002110 /*
2111 * Here we take care of forwarding unhandled data. This also includes
2112 * connection establishments and shutdown requests.
2113 */
2114
2115
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002116 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002117 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002118 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002119 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002120 */
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002121 if (!s->req->analysers &&
Willy Tarreaub31c9712012-11-11 23:05:39 +01002122 !(s->req->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau31971e52009-09-20 12:07:52 +02002123 (s->req->prod->state >= SI_ST_EST) &&
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002124 (s->req->to_forward != CHN_INFINITE_FORWARD)) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002125 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002126 * attached to it. If any data are left in, we'll permit them to
2127 * move.
2128 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002129 channel_auto_read(s->req);
2130 channel_auto_connect(s->req);
2131 channel_auto_close(s->req);
Willy Tarreau9b28e032012-10-12 23:49:43 +02002132 buffer_flush(s->req->buf);
Willy Tarreau5bd8c372009-01-19 00:32:22 +01002133
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002134 /* We'll let data flow between the producer (if still connected)
2135 * to the consumer (which might possibly not be connected yet).
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002136 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002137 if (!(s->req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002138 channel_forward(s->req, CHN_INFINITE_FORWARD);
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002139 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002140
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002141 /* check if it is wise to enable kernel splicing to forward request data */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002142 if (!(s->req->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002143 s->req->to_forward &&
2144 (global.tune.options & GTUNE_USE_SPLICE) &&
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002145 (objt_conn(s->si[0].end) && __objt_conn(s->si[0].end)->xprt && __objt_conn(s->si[0].end)->xprt->rcv_pipe) &&
2146 (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 +01002147 (pipes_used < global.maxpipes) &&
2148 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_REQ) ||
2149 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002150 (s->req->flags & CF_STREAMER_FAST)))) {
2151 s->req->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002152 }
2153
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002154 /* reflect what the L7 analysers have seen last */
2155 rqf_last = s->req->flags;
2156
2157 /*
2158 * Now forward all shutdown requests between both sides of the buffer
2159 */
2160
Willy Tarreau520d95e2009-09-19 21:04:57 +02002161 /* first, let's check if the request buffer needs to shutdown(write), which may
2162 * happen either because the input is closed or because we want to force a close
Willy Tarreaue4599762010-03-21 23:25:09 +01002163 * once the server has begun to respond.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002164 */
Willy Tarreaub31c9712012-11-11 23:05:39 +01002165 if (unlikely((s->req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002166 (CF_AUTO_CLOSE|CF_SHUTR)))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002167 channel_shutw_now(s->req);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002168
2169 /* shutdown(write) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002170 if (unlikely((s->req->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
Willy Tarreau8615c2a2013-06-21 08:20:19 +02002171 channel_is_empty(s->req))) {
2172 if (s->req->flags & CF_READ_ERROR)
2173 s->req->cons->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02002174 si_shutw(s->req->cons);
Willy Tarreau8615c2a2013-06-21 08:20:19 +02002175 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002176
2177 /* shutdown(write) done on server side, we must stop the client too */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002178 if (unlikely((s->req->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW &&
Willy Tarreau3dbc6942008-12-07 13:05:04 +01002179 !s->req->analysers))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002180 channel_shutr_now(s->req);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002181
2182 /* shutdown(read) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002183 if (unlikely((s->req->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002184 if (s->req->prod->flags & SI_FL_NOHALF)
2185 s->req->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02002186 si_shutr(s->req->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002187 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002188
Willy Tarreau520d95e2009-09-19 21:04:57 +02002189 /* it's possible that an upper layer has requested a connection setup or abort.
2190 * There are 2 situations where we decide to establish a new connection :
2191 * - there are data scheduled for emission in the buffer
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002192 * - the CF_AUTO_CONNECT flag is set (active connection)
Willy Tarreau520d95e2009-09-19 21:04:57 +02002193 */
2194 if (s->req->cons->state == SI_ST_INI) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002195 if (!(s->req->flags & CF_SHUTW)) {
2196 if ((s->req->flags & CF_AUTO_CONNECT) || !channel_is_empty(s->req)) {
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002197 /* If we have an appctx, there is no connect method, so we
2198 * immediately switch to the connected state, otherwise we
2199 * perform a connection request.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002200 */
Willy Tarreau85e7d002010-05-31 11:57:51 +02002201 s->req->cons->state = SI_ST_REQ; /* new connection requested */
Willy Tarreau070ceb62010-06-01 10:36:43 +02002202 s->req->cons->conn_retries = s->be->conn_retries;
Willy Tarreau520d95e2009-09-19 21:04:57 +02002203 }
Willy Tarreau73201222009-08-16 18:27:24 +02002204 }
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002205 else {
Willy Tarreau92795622009-03-06 12:51:23 +01002206 s->req->cons->state = SI_ST_CLO; /* shutw+ini = abort */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002207 channel_shutw_now(s->req); /* fix buffer flags upon abort */
2208 channel_shutr_now(s->rep);
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002209 }
Willy Tarreau92795622009-03-06 12:51:23 +01002210 }
2211
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002212
2213 /* we may have a pending connection request, or a connection waiting
2214 * for completion.
2215 */
2216 if (s->si[1].state >= SI_ST_REQ && s->si[1].state < SI_ST_CON) {
2217 do {
2218 /* nb: step 1 might switch from QUE to ASS, but we first want
2219 * to give a chance to step 2 to perform a redirect if needed.
2220 */
2221 if (s->si[1].state != SI_ST_REQ)
2222 sess_update_stream_int(s, &s->si[1]);
Willy Tarreau1e5dfda2013-04-07 18:19:16 +02002223 if (s->si[1].state == SI_ST_REQ) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002224 sess_prepare_conn_req(s, &s->si[1]);
2225
Willy Tarreaufac4bd12013-11-30 09:21:49 +01002226 /* applets directly go to the ESTABLISHED state */
2227 if (unlikely(s->si[1].state == SI_ST_EST))
2228 sess_establish(s, &s->si[1]);
2229
Willy Tarreau1e5dfda2013-04-07 18:19:16 +02002230 /* Now we can add the server name to a header (if requested) */
2231 /* check for HTTP mode and proxy server_name_hdr_name != NULL */
2232 if ((s->flags & SN_BE_ASSIGNED) &&
2233 (s->be->mode == PR_MODE_HTTP) &&
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01002234 (s->be->server_id_hdr_name != NULL && objt_server(s->target))) {
Willy Tarreau1e5dfda2013-04-07 18:19:16 +02002235 http_send_name_header(&s->txn, s->be, objt_server(s->target)->id);
2236 }
2237 }
2238
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002239 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01002240 if (s->si[1].state == SI_ST_ASS && srv && srv->rdr_len && (s->flags & SN_REDIRECTABLE))
Willy Tarreau71241ab2012-12-27 11:30:54 +01002241 http_perform_server_redirect(s, &s->si[1]);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002242 } while (s->si[1].state == SI_ST_ASS);
2243 }
2244
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002245 /* Benchmarks have shown that it's optimal to do a full resync now */
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002246 if (s->req->prod->state == SI_ST_DIS || s->req->cons->state == SI_ST_DIS)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002247 goto resync_stream_interface;
2248
Willy Tarreau815a9b22010-07-27 17:15:12 +02002249 /* otherwise we want to check if we need to resync the req buffer or not */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002250 if ((s->req->flags ^ rqf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002251 goto resync_request;
2252
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002253 /* perform output updates to the response buffer */
Willy Tarreau84455332009-03-15 22:34:05 +01002254
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002255 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002256 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002257 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002258 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002259 */
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002260 if (!s->rep->analysers &&
Willy Tarreaub31c9712012-11-11 23:05:39 +01002261 !(s->rep->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau31971e52009-09-20 12:07:52 +02002262 (s->rep->prod->state >= SI_ST_EST) &&
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002263 (s->rep->to_forward != CHN_INFINITE_FORWARD)) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002264 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002265 * attached to it. If any data are left in, we'll permit them to
2266 * move.
2267 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002268 channel_auto_read(s->rep);
2269 channel_auto_close(s->rep);
Willy Tarreau9b28e032012-10-12 23:49:43 +02002270 buffer_flush(s->rep->buf);
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002271
2272 /* We'll let data flow between the producer (if still connected)
2273 * to the consumer.
2274 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002275 if (!(s->rep->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002276 channel_forward(s->rep, CHN_INFINITE_FORWARD);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002277
2278 /* if we have no analyser anymore in any direction and have a
2279 * tunnel timeout set, use it now.
2280 */
2281 if (!s->req->analysers && s->be->timeout.tunnel) {
2282 s->req->rto = s->req->wto = s->rep->rto = s->rep->wto =
2283 s->be->timeout.tunnel;
2284 s->req->rex = s->req->wex = s->rep->rex = s->rep->wex =
2285 tick_add(now_ms, s->be->timeout.tunnel);
2286 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002287 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002288
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002289 /* check if it is wise to enable kernel splicing to forward response data */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002290 if (!(s->rep->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002291 s->rep->to_forward &&
2292 (global.tune.options & GTUNE_USE_SPLICE) &&
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002293 (objt_conn(s->si[0].end) && __objt_conn(s->si[0].end)->xprt && __objt_conn(s->si[0].end)->xprt->snd_pipe) &&
2294 (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 +01002295 (pipes_used < global.maxpipes) &&
2296 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_RTR) ||
2297 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002298 (s->rep->flags & CF_STREAMER_FAST)))) {
2299 s->rep->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002300 }
2301
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002302 /* reflect what the L7 analysers have seen last */
2303 rpf_last = s->rep->flags;
2304
2305 /*
2306 * Now forward all shutdown requests between both sides of the buffer
2307 */
2308
2309 /*
2310 * FIXME: this is probably where we should produce error responses.
2311 */
2312
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002313 /* first, let's check if the response buffer needs to shutdown(write) */
Willy Tarreaub31c9712012-11-11 23:05:39 +01002314 if (unlikely((s->rep->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002315 (CF_AUTO_CLOSE|CF_SHUTR)))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002316 channel_shutw_now(s->rep);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002317
2318 /* shutdown(write) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002319 if (unlikely((s->rep->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
Willy Tarreau8e21bb92012-08-24 22:40:29 +02002320 channel_is_empty(s->rep)))
Willy Tarreau73b013b2012-05-21 16:31:45 +02002321 si_shutw(s->rep->cons);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002322
2323 /* shutdown(write) done on the client side, we must stop the server too */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002324 if (unlikely((s->rep->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW) &&
Willy Tarreau3dbc6942008-12-07 13:05:04 +01002325 !s->rep->analysers)
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002326 channel_shutr_now(s->rep);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002327
2328 /* shutdown(read) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002329 if (unlikely((s->rep->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002330 if (s->rep->prod->flags & SI_FL_NOHALF)
2331 s->rep->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02002332 si_shutr(s->rep->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002333 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002334
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002335 if (s->req->prod->state == SI_ST_DIS || s->req->cons->state == SI_ST_DIS)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002336 goto resync_stream_interface;
2337
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002338 if (s->req->flags != rqf_last)
2339 goto resync_request;
2340
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002341 if ((s->rep->flags ^ rpf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002342 goto resync_response;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002343
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002344 /* we're interested in getting wakeups again */
2345 s->req->prod->flags &= ~SI_FL_DONT_WAKE;
2346 s->req->cons->flags &= ~SI_FL_DONT_WAKE;
2347
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002348 /* This is needed only when debugging is enabled, to indicate
2349 * client-side or server-side close. Please note that in the unlikely
2350 * event where both sides would close at once, the sequence is reported
2351 * on the server side first.
2352 */
2353 if (unlikely((global.mode & MODE_DEBUG) &&
2354 (!(global.mode & MODE_QUIET) ||
2355 (global.mode & MODE_VERBOSE)))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002356 if (s->si[1].state == SI_ST_CLO &&
2357 s->si[1].prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002358 chunk_printf(&trash, "%08x:%s.srvcls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002359 s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002360 objt_conn(s->si[0].end) ? (unsigned short)objt_conn(s->si[0].end)->t.sock.fd : -1,
2361 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 +01002362 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002363 }
2364
2365 if (s->si[0].state == SI_ST_CLO &&
2366 s->si[0].prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002367 chunk_printf(&trash, "%08x:%s.clicls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002368 s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002369 objt_conn(s->si[0].end) ? (unsigned short)objt_conn(s->si[0].end)->t.sock.fd : -1,
2370 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 +01002371 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002372 }
2373 }
2374
2375 if (likely((s->rep->cons->state != SI_ST_CLO) ||
2376 (s->req->cons->state > SI_ST_INI && s->req->cons->state < SI_ST_CLO))) {
2377
2378 if ((s->fe->options & PR_O_CONTSTATS) && (s->flags & SN_BE_ASSIGNED))
2379 session_process_counters(s);
2380
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002381 if (s->rep->cons->state == SI_ST_EST && obj_type(s->rep->cons->end) != OBJ_TYPE_APPCTX)
Willy Tarreau73b013b2012-05-21 16:31:45 +02002382 si_update(s->rep->cons);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002383
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002384 if (s->req->cons->state == SI_ST_EST && obj_type(s->req->cons->end) != OBJ_TYPE_APPCTX)
Willy Tarreau73b013b2012-05-21 16:31:45 +02002385 si_update(s->req->cons);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002386
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002387 s->req->flags &= ~(CF_READ_NULL|CF_READ_PARTIAL|CF_WRITE_NULL|CF_WRITE_PARTIAL|CF_READ_ATTACHED);
2388 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 +01002389 s->si[0].prev_state = s->si[0].state;
2390 s->si[1].prev_state = s->si[1].state;
Willy Tarreaub0ef7352008-12-14 13:26:20 +01002391 s->si[0].flags &= ~(SI_FL_ERR|SI_FL_EXP);
2392 s->si[1].flags &= ~(SI_FL_ERR|SI_FL_EXP);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002393
2394 /* Trick: if a request is being waiting for the server to respond,
2395 * and if we know the server can timeout, we don't want the timeout
2396 * to expire on the client side first, but we're still interested
2397 * in passing data from the client to the server (eg: POST). Thus,
2398 * we can cancel the client's request timeout if the server's
2399 * request timeout is set and the server has not yet sent a response.
2400 */
2401
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002402 if ((s->rep->flags & (CF_AUTO_CLOSE|CF_SHUTR)) == 0 &&
Willy Tarreau86491c32008-12-14 09:04:47 +01002403 (tick_isset(s->req->wex) || tick_isset(s->rep->rex))) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002404 s->req->flags |= CF_READ_NOEXP;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002405 s->req->rex = TICK_ETERNITY;
Willy Tarreau86491c32008-12-14 09:04:47 +01002406 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002407
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002408 /* When any of the stream interfaces is attached to an applet,
2409 * we have to call it here. Note that this one may wake the
2410 * task up again. If at least one applet was called, the current
2411 * task might have been woken up, in which case we don't want it
2412 * to be requeued to the wait queue but rather to the run queue
2413 * to run ASAP. The bitwise "or" in the condition ensures that
2414 * both functions are always called and that we wake up if at
2415 * least one did something.
Willy Tarreau1accfc02009-09-05 20:57:35 +02002416 */
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002417 if ((si_applet_call(s->req->cons) | si_applet_call(s->rep->cons)) != 0) {
Willy Tarreau1accfc02009-09-05 20:57:35 +02002418 if (task_in_rq(t)) {
Willy Tarreau1accfc02009-09-05 20:57:35 +02002419 t->expire = TICK_ETERNITY;
2420 return t;
2421 }
2422 }
2423
Willy Tarreau798f4322012-11-08 14:49:17 +01002424 update_exp_and_leave:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002425 t->expire = tick_first(tick_first(s->req->rex, s->req->wex),
2426 tick_first(s->rep->rex, s->rep->wex));
2427 if (s->req->analysers)
2428 t->expire = tick_first(t->expire, s->req->analyse_exp);
2429
2430 if (s->si[0].exp)
2431 t->expire = tick_first(t->expire, s->si[0].exp);
2432
2433 if (s->si[1].exp)
2434 t->expire = tick_first(t->expire, s->si[1].exp);
2435
2436#ifdef DEBUG_FULL
Willy Tarreau127334e2009-03-28 10:47:26 +01002437 fprintf(stderr,
2438 "[%u] queuing with exp=%u req->rex=%u req->wex=%u req->ana_exp=%u"
2439 " rep->rex=%u rep->wex=%u, si[0].exp=%u, si[1].exp=%u, cs=%d, ss=%d\n",
2440 now_ms, t->expire, s->req->rex, s->req->wex, s->req->analyse_exp,
2441 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 +01002442#endif
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002443
2444#ifdef DEBUG_DEV
2445 /* this may only happen when no timeout is set or in case of an FSM bug */
Willy Tarreaud0a201b2009-03-08 15:53:06 +01002446 if (!tick_isset(t->expire))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002447 ABORT_NOW();
2448#endif
Willy Tarreau26c25062009-03-08 09:38:41 +01002449 return t; /* nothing more to do */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002450 }
2451
2452 s->fe->feconn--;
2453 if (s->flags & SN_BE_ASSIGNED)
2454 s->be->beconn--;
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002455 if (!(s->listener->options & LI_O_UNLIMITED))
2456 actconn--;
Willy Tarreauaf7ad002010-08-31 15:39:26 +02002457 jobs--;
Willy Tarreau6e6fb2b2009-08-16 18:20:44 +02002458 s->listener->nbconn--;
Willy Tarreau62793712011-07-24 19:23:38 +02002459 if (s->listener->state == LI_FULL)
2460 resume_listener(s->listener);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002461
Willy Tarreau08ceb102011-07-24 22:58:00 +02002462 /* Dequeues all of the listeners waiting for a resource */
2463 if (!LIST_ISEMPTY(&global_listener_queue))
2464 dequeue_all_listeners(&global_listener_queue);
2465
Willy Tarreaub32907b2011-07-25 08:37:44 +02002466 if (!LIST_ISEMPTY(&s->fe->listener_queue) &&
2467 (!s->fe->fe_sps_lim || freq_ctr_remain(&s->fe->fe_sess_per_sec, s->fe->fe_sps_lim, 0) > 0))
Willy Tarreau07687c12011-07-24 23:55:06 +02002468 dequeue_all_listeners(&s->fe->listener_queue);
2469
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002470 if (unlikely((global.mode & MODE_DEBUG) &&
2471 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)))) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002472 chunk_printf(&trash, "%08x:%s.closed[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002473 s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002474 objt_conn(s->si[0].end) ? (unsigned short)objt_conn(s->si[0].end)->t.sock.fd : -1,
2475 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 +01002476 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002477 }
2478
2479 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
2480 session_process_counters(s);
2481
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002482 if (s->txn.status) {
2483 int n;
2484
2485 n = s->txn.status / 100;
2486 if (n < 1 || n > 5)
2487 n = 0;
2488
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002489 if (s->fe->mode == PR_MODE_HTTP) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002490 s->fe->fe_counters.p.http.rsp[n]++;
Willy Tarreau8139b992012-11-27 07:35:31 +01002491 if (s->comp_algo && (s->flags & SN_COMP_READY))
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002492 s->fe->fe_counters.p.http.comp_rsp++;
2493 }
Willy Tarreau24657792010-02-26 10:30:28 +01002494 if ((s->flags & SN_BE_ASSIGNED) &&
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002495 (s->be->mode == PR_MODE_HTTP)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002496 s->be->be_counters.p.http.rsp[n]++;
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002497 s->be->be_counters.p.http.cum_req++;
Willy Tarreau8139b992012-11-27 07:35:31 +01002498 if (s->comp_algo && (s->flags & SN_COMP_READY))
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002499 s->be->be_counters.p.http.comp_rsp++;
2500 }
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002501 }
2502
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002503 /* let's do a final log if we need it */
Willy Tarreaud79a3b22012-12-28 09:40:16 +01002504 if (!LIST_ISEMPTY(&s->fe->logformat) && s->logs.logwait &&
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002505 !(s->flags & SN_MONITOR) &&
2506 (!(s->fe->options & PR_O_NULLNOLOG) || s->req->total)) {
Willy Tarreaua5555ec2008-11-30 19:02:32 +01002507 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002508 }
2509
2510 /* the task MUST not be in the run queue anymore */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002511 session_free(s);
Willy Tarreau26c25062009-03-08 09:38:41 +01002512 task_delete(t);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002513 task_free(t);
Willy Tarreau26c25062009-03-08 09:38:41 +01002514 return NULL;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002515}
2516
Willy Tarreau7c669d72008-06-20 15:04:11 +02002517/*
2518 * This function adjusts sess->srv_conn and maintains the previous and new
2519 * server's served session counts. Setting newsrv to NULL is enough to release
2520 * current connection slot. This function also notifies any LB algo which might
2521 * expect to be informed about any change in the number of active sessions on a
2522 * server.
2523 */
2524void sess_change_server(struct session *sess, struct server *newsrv)
2525{
2526 if (sess->srv_conn == newsrv)
2527 return;
2528
2529 if (sess->srv_conn) {
2530 sess->srv_conn->served--;
2531 if (sess->srv_conn->proxy->lbprm.server_drop_conn)
2532 sess->srv_conn->proxy->lbprm.server_drop_conn(sess->srv_conn);
Simon Hormanaf514952011-06-21 14:34:57 +09002533 session_del_srv_conn(sess);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002534 }
2535
2536 if (newsrv) {
2537 newsrv->served++;
2538 if (newsrv->proxy->lbprm.server_take_conn)
2539 newsrv->proxy->lbprm.server_take_conn(newsrv);
Simon Hormanaf514952011-06-21 14:34:57 +09002540 session_add_srv_conn(sess, newsrv);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002541 }
2542}
2543
Willy Tarreau84455332009-03-15 22:34:05 +01002544/* Handle server-side errors for default protocols. It is called whenever a a
2545 * connection setup is aborted or a request is aborted in queue. It sets the
2546 * session termination flags so that the caller does not have to worry about
2547 * them. It's installed as ->srv_error for the server-side stream_interface.
2548 */
2549void default_srv_error(struct session *s, struct stream_interface *si)
2550{
2551 int err_type = si->err_type;
2552 int err = 0, fin = 0;
2553
2554 if (err_type & SI_ET_QUEUE_ABRT) {
2555 err = SN_ERR_CLICL;
2556 fin = SN_FINST_Q;
2557 }
2558 else if (err_type & SI_ET_CONN_ABRT) {
2559 err = SN_ERR_CLICL;
2560 fin = SN_FINST_C;
2561 }
2562 else if (err_type & SI_ET_QUEUE_TO) {
2563 err = SN_ERR_SRVTO;
2564 fin = SN_FINST_Q;
2565 }
2566 else if (err_type & SI_ET_QUEUE_ERR) {
2567 err = SN_ERR_SRVCL;
2568 fin = SN_FINST_Q;
2569 }
2570 else if (err_type & SI_ET_CONN_TO) {
2571 err = SN_ERR_SRVTO;
2572 fin = SN_FINST_C;
2573 }
2574 else if (err_type & SI_ET_CONN_ERR) {
2575 err = SN_ERR_SRVCL;
2576 fin = SN_FINST_C;
2577 }
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002578 else if (err_type & SI_ET_CONN_RES) {
2579 err = SN_ERR_RESOURCE;
2580 fin = SN_FINST_C;
2581 }
Willy Tarreau84455332009-03-15 22:34:05 +01002582 else /* SI_ET_CONN_OTHER and others */ {
2583 err = SN_ERR_INTERNAL;
2584 fin = SN_FINST_C;
2585 }
2586
2587 if (!(s->flags & SN_ERR_MASK))
2588 s->flags |= err;
2589 if (!(s->flags & SN_FINST_MASK))
2590 s->flags |= fin;
2591}
Willy Tarreau7c669d72008-06-20 15:04:11 +02002592
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002593/* kill a session and set the termination flags to <why> (one of SN_ERR_*) */
2594void session_shutdown(struct session *session, int why)
2595{
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002596 if (session->req->flags & (CF_SHUTW|CF_SHUTW_NOW))
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002597 return;
2598
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002599 channel_shutw_now(session->req);
2600 channel_shutr_now(session->rep);
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002601 session->task->nice = 1024;
2602 if (!(session->flags & SN_ERR_MASK))
2603 session->flags |= why;
2604 task_wakeup(session->task, TASK_WOKEN_OTHER);
2605}
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02002606
Willy Tarreau8b22a712010-06-18 17:46:06 +02002607/************************************************************************/
2608/* All supported ACL keywords must be declared here. */
2609/************************************************************************/
2610
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002611/* Returns a pointer to a stkctr depending on the fetch keyword name.
2612 * It is designed to be called as sc[0-9]_* sc_* or src_* exclusively.
Willy Tarreaua65536c2013-07-22 22:40:11 +02002613 * sc[0-9]_* will return a pointer to the respective field in the
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002614 * session <l4>. sc_* requires an UINT argument specifying the stick
2615 * counter number. src_* will fill a locally allocated structure with
Willy Tarreaua65536c2013-07-22 22:40:11 +02002616 * the table and entry corresponding to what is specified with src_*.
Willy Tarreau0f791d42013-07-23 19:56:43 +02002617 * NULL may be returned if the designated stkctr is not tracked. For
2618 * the sc_* and sc[0-9]_* forms, an optional table argument may be
2619 * passed. When present, the currently tracked key is then looked up
2620 * in the specified table instead of the current table. The purpose is
2621 * to be able to convery multiple values per key (eg: have gpc0 from
2622 * multiple tables).
Willy Tarreaua65536c2013-07-22 22:40:11 +02002623 */
2624static struct stkctr *
2625smp_fetch_sc_stkctr(struct session *l4, const struct arg *args, const char *kw)
2626{
2627 static struct stkctr stkctr;
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002628 unsigned int num = kw[2] - '0';
Willy Tarreau0f791d42013-07-23 19:56:43 +02002629 int arg = 0;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002630
Willy Tarreau0f791d42013-07-23 19:56:43 +02002631 if (num == '_' - '0') {
2632 /* sc_* variant, args[0] = ctr# (mandatory) */
2633 num = args[arg++].data.uint;
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002634 if (num >= MAX_SESS_STKCTR)
2635 return NULL;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002636 }
Willy Tarreau0f791d42013-07-23 19:56:43 +02002637 else if (num > 9) { /* src_* variant, args[0] = table */
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002638 struct stktable_key *key;
2639 struct connection *conn = objt_conn(l4->si[0].end);
2640
2641 if (!conn)
2642 return NULL;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002643
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002644 key = addr_to_stktable_key(&conn->addr.from);
Willy Tarreaua65536c2013-07-22 22:40:11 +02002645 if (!key)
2646 return NULL;
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002647
Willy Tarreaua65536c2013-07-22 22:40:11 +02002648 stkctr.table = &args->data.prx->table;
2649 stkctr.entry = stktable_lookup_key(stkctr.table, key);
2650 return &stkctr;
2651 }
Willy Tarreau0f791d42013-07-23 19:56:43 +02002652
2653 /* Here, <num> contains the counter number from 0 to 9 for
2654 * the sc[0-9]_ form, or even higher using sc_(num) if needed.
2655 * args[arg] is the first optional argument.
2656 */
2657 if (unlikely(args[arg].type == ARGT_TAB)) {
2658 /* an alternate table was specified, let's look up the same key there */
2659 stkctr.table = &args[arg].data.prx->table;
2660 stkctr.entry = stktable_lookup(stkctr.table, l4->stkctr[num].entry);
2661 return &stkctr;
2662 }
2663 return l4->stkctr[num].entry ? &l4->stkctr[num] : NULL;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002664}
2665
Willy Tarreau88821242013-07-22 18:29:29 +02002666/* set return a boolean indicating if the requested session counter is
2667 * currently being tracked or not.
2668 * Supports being called as "sc[0-9]_tracked" only.
2669 */
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002670static int
Willy Tarreau88821242013-07-22 18:29:29 +02002671smp_fetch_sc_tracked(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02002672 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002673{
2674 smp->flags = SMP_F_VOL_TEST;
2675 smp->type = SMP_T_BOOL;
Willy Tarreau88821242013-07-22 18:29:29 +02002676 smp->data.uint = !!l4->stkctr[kw[2] - '0'].entry;
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002677 return 1;
2678}
2679
Willy Tarreau30b20462013-07-22 19:46:52 +02002680/* set <smp> to the General Purpose Counter 0 value from the session's tracked
2681 * frontend counters or from the src.
2682 * Supports being called as "sc[0-9]_get_gpc0" or "src_get_gpc0" only. Value
2683 * zero is returned if the key is new.
2684 */
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002685static int
Willy Tarreau30b20462013-07-22 19:46:52 +02002686smp_fetch_sc_get_gpc0(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2687 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002688{
Willy Tarreau30b20462013-07-22 19:46:52 +02002689 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2690
2691 if (!stkctr)
2692 return 0;
2693
Willy Tarreau37406352012-04-23 16:16:37 +02002694 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002695 smp->type = SMP_T_UINT;
2696 smp->data.uint = 0;
Willy Tarreau30b20462013-07-22 19:46:52 +02002697
2698 if (stkctr->entry != NULL) {
2699 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_GPC0);
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002700 if (!ptr)
2701 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002702 smp->data.uint = stktable_data_cast(ptr, gpc0);
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002703 }
2704 return 1;
2705}
2706
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002707/* set <smp> to the General Purpose Counter 0's event rate from the session's
2708 * tracked frontend counters or from the src.
2709 * Supports being called as "sc[0-9]_gpc0_rate" or "src_gpc0_rate" only.
2710 * Value zero is returned if the key is new.
2711 */
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002712static int
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002713smp_fetch_sc_gpc0_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2714 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002715{
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002716 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2717
2718 if (!stkctr)
2719 return 0;
2720
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002721 smp->flags = SMP_F_VOL_TEST;
2722 smp->type = SMP_T_UINT;
2723 smp->data.uint = 0;
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002724 if (stkctr->entry != NULL) {
2725 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_GPC0_RATE);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002726 if (!ptr)
2727 return 0; /* parameter not stored */
2728 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, gpc0_rate),
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002729 stkctr->table->data_arg[STKTABLE_DT_GPC0_RATE].u);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002730 }
2731 return 1;
2732}
2733
Willy Tarreau710d38c2013-07-23 00:07:04 +02002734/* Increment the General Purpose Counter 0 value from the session's tracked
2735 * frontend counters and return it into temp integer.
2736 * Supports being called as "sc[0-9]_inc_gpc0" or "src_inc_gpc0" only.
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002737 */
2738static int
Willy Tarreau710d38c2013-07-23 00:07:04 +02002739smp_fetch_sc_inc_gpc0(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2740 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002741{
Willy Tarreau710d38c2013-07-23 00:07:04 +02002742 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2743
2744 if (!stkctr)
2745 return 0;
2746
Willy Tarreau37406352012-04-23 16:16:37 +02002747 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002748 smp->type = SMP_T_UINT;
2749 smp->data.uint = 0;
Willy Tarreau710d38c2013-07-23 00:07:04 +02002750 if (stkctr->entry != NULL) {
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002751 void *ptr;
2752
2753 /* First, update gpc0_rate if it's tracked. Second, update its
2754 * gpc0 if tracked. Returns gpc0's value otherwise the curr_ctr.
2755 */
Willy Tarreau710d38c2013-07-23 00:07:04 +02002756 ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_GPC0_RATE);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002757 if (ptr) {
2758 update_freq_ctr_period(&stktable_data_cast(ptr, gpc0_rate),
Willy Tarreau710d38c2013-07-23 00:07:04 +02002759 stkctr->table->data_arg[STKTABLE_DT_GPC0_RATE].u, 1);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002760 smp->data.uint = (&stktable_data_cast(ptr, gpc0_rate))->curr_ctr;
2761 }
2762
Willy Tarreau710d38c2013-07-23 00:07:04 +02002763 ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_GPC0);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002764 if (ptr)
2765 smp->data.uint = ++stktable_data_cast(ptr, gpc0);
2766
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002767 }
2768 return 1;
2769}
2770
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002771/* Clear the General Purpose Counter 0 value from the session's tracked
2772 * frontend counters and return its previous value into temp integer.
2773 * Supports being called as "sc[0-9]_clr_gpc0" or "src_clr_gpc0" only.
Willy Tarreauf73cd112011-08-13 01:45:16 +02002774 */
2775static int
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002776smp_fetch_sc_clr_gpc0(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2777 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauf73cd112011-08-13 01:45:16 +02002778{
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002779 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2780
2781 if (!stkctr)
2782 return 0;
2783
Willy Tarreau37406352012-04-23 16:16:37 +02002784 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002785 smp->type = SMP_T_UINT;
2786 smp->data.uint = 0;
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002787 if (stkctr->entry != NULL) {
2788 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_GPC0);
Willy Tarreauf73cd112011-08-13 01:45:16 +02002789 if (!ptr)
2790 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002791 smp->data.uint = stktable_data_cast(ptr, gpc0);
Willy Tarreauf73cd112011-08-13 01:45:16 +02002792 stktable_data_cast(ptr, gpc0) = 0;
2793 }
2794 return 1;
2795}
2796
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002797/* set <smp> to the cumulated number of connections from the session's tracked
2798 * frontend counters. Supports being called as "sc[0-9]_conn_cnt" or
2799 * "src_conn_cnt" only.
2800 */
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002801static int
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002802smp_fetch_sc_conn_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2803 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002804{
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002805 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2806
2807 if (!stkctr)
2808 return 0;
2809
Willy Tarreau37406352012-04-23 16:16:37 +02002810 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002811 smp->type = SMP_T_UINT;
2812 smp->data.uint = 0;
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002813 if (stkctr->entry != NULL) {
2814 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_CONN_CNT);
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002815 if (!ptr)
2816 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002817 smp->data.uint = stktable_data_cast(ptr, conn_cnt);
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002818 }
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002819 return 1;
2820}
2821
Willy Tarreauc8c65702013-07-23 15:09:35 +02002822/* set <smp> to the connection rate from the session's tracked frontend
2823 * counters. Supports being called as "sc[0-9]_conn_rate" or "src_conn_rate"
2824 * only.
2825 */
Willy Tarreau91c43d72010-06-20 11:19:22 +02002826static int
Willy Tarreauc8c65702013-07-23 15:09:35 +02002827smp_fetch_sc_conn_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2828 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau91c43d72010-06-20 11:19:22 +02002829{
Willy Tarreauc8c65702013-07-23 15:09:35 +02002830 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2831
2832 if (!stkctr)
2833 return 0;
2834
Willy Tarreau37406352012-04-23 16:16:37 +02002835 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002836 smp->type = SMP_T_UINT;
2837 smp->data.uint = 0;
Willy Tarreauc8c65702013-07-23 15:09:35 +02002838 if (stkctr->entry != NULL) {
2839 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_CONN_RATE);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002840 if (!ptr)
2841 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002842 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, conn_rate),
Willy Tarreauc8c65702013-07-23 15:09:35 +02002843 stkctr->table->data_arg[STKTABLE_DT_CONN_RATE].u);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002844 }
2845 return 1;
2846}
2847
Willy Tarreaua5e37562011-12-16 17:06:15 +01002848/* set temp integer to the number of connections from the session's source address
Willy Tarreau8b22a712010-06-18 17:46:06 +02002849 * in the table pointed to by expr, after updating it.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02002850 * Accepts exactly 1 argument of type table.
Willy Tarreau8b22a712010-06-18 17:46:06 +02002851 */
2852static int
Willy Tarreau281c7992013-01-08 01:23:27 +01002853smp_fetch_src_updt_conn_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02002854 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau8b22a712010-06-18 17:46:06 +02002855{
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002856 struct connection *conn = objt_conn(l4->si[0].end);
Willy Tarreau8b22a712010-06-18 17:46:06 +02002857 struct stksess *ts;
2858 struct stktable_key *key;
2859 void *ptr;
2860
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002861 if (!conn)
2862 return 0;
2863
2864 key = addr_to_stktable_key(&conn->addr.from);
Willy Tarreau8b22a712010-06-18 17:46:06 +02002865 if (!key)
David du Colombier4f92d322011-03-24 11:09:31 +01002866 return 0;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002867
Willy Tarreau24e32d82012-04-23 23:55:44 +02002868 px = args->data.prx;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002869
Willy Tarreau1f7e9252010-06-20 12:27:21 +02002870 if ((ts = stktable_update_key(&px->table, key)) == NULL)
2871 /* entry does not exist and could not be created */
2872 return 0;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002873
2874 ptr = stktable_data_ptr(&px->table, ts, STKTABLE_DT_CONN_CNT);
2875 if (!ptr)
2876 return 0; /* parameter not stored in this table */
2877
Willy Tarreauf853c462012-04-23 18:53:56 +02002878 smp->type = SMP_T_UINT;
2879 smp->data.uint = ++stktable_data_cast(ptr, conn_cnt);
Willy Tarreau37406352012-04-23 16:16:37 +02002880 smp->flags = SMP_F_VOL_TEST;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002881 return 1;
2882}
2883
Willy Tarreauf44a5532013-07-23 15:17:53 +02002884/* set <smp> to the number of concurrent connections from the session's tracked
2885 * frontend counters. Supports being called as "sc[0-9]_conn_cur" or
2886 * "src_conn_cur" only.
2887 */
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002888static int
Willy Tarreauf44a5532013-07-23 15:17:53 +02002889smp_fetch_sc_conn_cur(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2890 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002891{
Willy Tarreauf44a5532013-07-23 15:17:53 +02002892 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2893
2894 if (!stkctr)
2895 return 0;
2896
Willy Tarreau37406352012-04-23 16:16:37 +02002897 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002898 smp->type = SMP_T_UINT;
2899 smp->data.uint = 0;
Willy Tarreauf44a5532013-07-23 15:17:53 +02002900 if (stkctr->entry != NULL) {
2901 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_CONN_CUR);
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002902 if (!ptr)
2903 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002904 smp->data.uint = stktable_data_cast(ptr, conn_cur);
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002905 }
2906 return 1;
2907}
2908
Willy Tarreau20843082013-07-23 15:35:33 +02002909/* set <smp> to the cumulated number of sessions from the session's tracked
2910 * frontend counters. Supports being called as "sc[0-9]_sess_cnt" or
2911 * "src_sess_cnt" only.
2912 */
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002913static int
Willy Tarreau20843082013-07-23 15:35:33 +02002914smp_fetch_sc_sess_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2915 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002916{
Willy Tarreau20843082013-07-23 15:35:33 +02002917 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2918
2919 if (!stkctr)
2920 return 0;
2921
Willy Tarreau37406352012-04-23 16:16:37 +02002922 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002923 smp->type = SMP_T_UINT;
2924 smp->data.uint = 0;
Willy Tarreau20843082013-07-23 15:35:33 +02002925 if (stkctr->entry != NULL) {
2926 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_SESS_CNT);
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002927 if (!ptr)
2928 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002929 smp->data.uint = stktable_data_cast(ptr, sess_cnt);
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002930 }
2931 return 1;
2932}
2933
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002934/* set <smp> to the session rate from the session's tracked frontend counters.
2935 * Supports being called as "sc[0-9]_sess_rate" or "src_sess_rate" only.
2936 */
Willy Tarreau91c43d72010-06-20 11:19:22 +02002937static int
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002938smp_fetch_sc_sess_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2939 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau91c43d72010-06-20 11:19:22 +02002940{
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002941 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2942
2943 if (!stkctr)
2944 return 0;
2945
Willy Tarreau37406352012-04-23 16:16:37 +02002946 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002947 smp->type = SMP_T_UINT;
2948 smp->data.uint = 0;
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002949 if (stkctr->entry != NULL) {
2950 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_SESS_RATE);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002951 if (!ptr)
2952 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002953 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, sess_rate),
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002954 stkctr->table->data_arg[STKTABLE_DT_SESS_RATE].u);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002955 }
2956 return 1;
2957}
2958
Willy Tarreau91200da2013-07-23 15:55:19 +02002959/* set <smp> to the cumulated number of HTTP requests from the session's tracked
2960 * frontend counters. Supports being called as "sc[0-9]_http_req_cnt" or
2961 * "src_http_req_cnt" only.
2962 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02002963static int
Willy Tarreau91200da2013-07-23 15:55:19 +02002964smp_fetch_sc_http_req_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2965 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02002966{
Willy Tarreau91200da2013-07-23 15:55:19 +02002967 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2968
2969 if (!stkctr)
2970 return 0;
2971
Willy Tarreau37406352012-04-23 16:16:37 +02002972 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002973 smp->type = SMP_T_UINT;
2974 smp->data.uint = 0;
Willy Tarreau91200da2013-07-23 15:55:19 +02002975 if (stkctr->entry != NULL) {
2976 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_HTTP_REQ_CNT);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002977 if (!ptr)
2978 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002979 smp->data.uint = stktable_data_cast(ptr, http_req_cnt);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002980 }
2981 return 1;
2982}
2983
Willy Tarreaucf477632013-07-23 16:04:37 +02002984/* set <smp> to the HTTP request rate from the session's tracked frontend
2985 * counters. Supports being called as "sc[0-9]_http_req_rate" or
2986 * "src_http_req_rate" only.
2987 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02002988static int
Willy Tarreaucf477632013-07-23 16:04:37 +02002989smp_fetch_sc_http_req_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2990 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02002991{
Willy Tarreaucf477632013-07-23 16:04:37 +02002992 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2993
2994 if (!stkctr)
2995 return 0;
2996
Willy Tarreau37406352012-04-23 16:16:37 +02002997 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002998 smp->type = SMP_T_UINT;
2999 smp->data.uint = 0;
Willy Tarreaucf477632013-07-23 16:04:37 +02003000 if (stkctr->entry != NULL) {
3001 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_HTTP_REQ_RATE);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003002 if (!ptr)
3003 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003004 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, http_req_rate),
Willy Tarreaucf477632013-07-23 16:04:37 +02003005 stkctr->table->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003006 }
3007 return 1;
3008}
3009
Willy Tarreau30d07c32013-07-23 16:45:38 +02003010/* set <smp> to the cumulated number of HTTP requests errors from the session's
3011 * tracked frontend counters. Supports being called as "sc[0-9]_http_err_cnt" or
3012 * "src_http_err_cnt" only.
3013 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02003014static int
Willy Tarreau30d07c32013-07-23 16:45:38 +02003015smp_fetch_sc_http_err_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3016 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02003017{
Willy Tarreau30d07c32013-07-23 16:45:38 +02003018 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3019
3020 if (!stkctr)
3021 return 0;
3022
Willy Tarreau37406352012-04-23 16:16:37 +02003023 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003024 smp->type = SMP_T_UINT;
3025 smp->data.uint = 0;
Willy Tarreau30d07c32013-07-23 16:45:38 +02003026 if (stkctr->entry != NULL) {
3027 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_HTTP_ERR_CNT);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003028 if (!ptr)
3029 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003030 smp->data.uint = stktable_data_cast(ptr, http_err_cnt);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003031 }
3032 return 1;
3033}
3034
Willy Tarreau9daf2622013-07-23 16:48:54 +02003035/* set <smp> to the HTTP request error rate from the session's tracked frontend
3036 * counters. Supports being called as "sc[0-9]_http_err_rate" or
3037 * "src_http_err_rate" only.
3038 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02003039static int
Willy Tarreau9daf2622013-07-23 16:48:54 +02003040smp_fetch_sc_http_err_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3041 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02003042{
Willy Tarreau9daf2622013-07-23 16:48:54 +02003043 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3044
3045 if (!stkctr)
3046 return 0;
3047
Willy Tarreau37406352012-04-23 16:16:37 +02003048 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003049 smp->type = SMP_T_UINT;
3050 smp->data.uint = 0;
Willy Tarreau9daf2622013-07-23 16:48:54 +02003051 if (stkctr->entry != NULL) {
3052 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_HTTP_ERR_RATE);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003053 if (!ptr)
3054 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003055 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, http_err_rate),
Willy Tarreau9daf2622013-07-23 16:48:54 +02003056 stkctr->table->data_arg[STKTABLE_DT_HTTP_ERR_RATE].u);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003057 }
3058 return 1;
3059}
3060
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003061/* set <smp> to the number of kbytes received from clients, as found in the
3062 * session's tracked frontend counters. Supports being called as
3063 * "sc[0-9]_kbytes_in" or "src_kbytes_in" only.
3064 */
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003065static int
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003066smp_fetch_sc_kbytes_in(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3067 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003068{
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003069 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3070
3071 if (!stkctr)
3072 return 0;
3073
Willy Tarreau37406352012-04-23 16:16:37 +02003074 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003075 smp->type = SMP_T_UINT;
3076 smp->data.uint = 0;
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003077 if (stkctr->entry != NULL) {
3078 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_BYTES_IN_CNT);
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003079 if (!ptr)
3080 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003081 smp->data.uint = stktable_data_cast(ptr, bytes_in_cnt) >> 10;
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003082 }
3083 return 1;
3084}
3085
Willy Tarreau613fe992013-07-23 17:39:19 +02003086/* set <smp> to the data rate received from clients in bytes/s, as found
3087 * in the session's tracked frontend counters. Supports being called as
3088 * "sc[0-9]_bytes_in_rate" or "src_bytes_in_rate" only.
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003089 */
3090static int
Willy Tarreau613fe992013-07-23 17:39:19 +02003091smp_fetch_sc_bytes_in_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3092 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003093{
Willy Tarreau613fe992013-07-23 17:39:19 +02003094 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3095
3096 if (!stkctr)
3097 return 0;
3098
Willy Tarreau37406352012-04-23 16:16:37 +02003099 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003100 smp->type = SMP_T_UINT;
3101 smp->data.uint = 0;
Willy Tarreau613fe992013-07-23 17:39:19 +02003102 if (stkctr->entry != NULL) {
3103 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_BYTES_IN_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003104 if (!ptr)
3105 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003106 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, bytes_in_rate),
Willy Tarreau613fe992013-07-23 17:39:19 +02003107 stkctr->table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003108 }
3109 return 1;
3110}
3111
Willy Tarreau53aea102013-07-23 17:39:02 +02003112/* set <smp> to the number of kbytes sent to clients, as found in the
3113 * session's tracked frontend counters. Supports being called as
3114 * "sc[0-9]_kbytes_out" or "src_kbytes_out" only.
3115 */
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003116static int
Willy Tarreau53aea102013-07-23 17:39:02 +02003117smp_fetch_sc_kbytes_out(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3118 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003119{
Willy Tarreau53aea102013-07-23 17:39:02 +02003120 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3121
3122 if (!stkctr)
3123 return 0;
3124
Willy Tarreau37406352012-04-23 16:16:37 +02003125 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003126 smp->type = SMP_T_UINT;
3127 smp->data.uint = 0;
Willy Tarreau53aea102013-07-23 17:39:02 +02003128 if (stkctr->entry != NULL) {
3129 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_BYTES_OUT_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003130 if (!ptr)
3131 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003132 smp->data.uint = stktable_data_cast(ptr, bytes_out_cnt) >> 10;
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003133 }
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003134 return 1;
3135}
3136
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003137/* set <smp> to the data rate sent to clients in bytes/s, as found in the
3138 * session's tracked frontend counters. Supports being called as
3139 * "sc[0-9]_bytes_out_rate" or "src_bytes_out_rate" only.
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003140 */
3141static int
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003142smp_fetch_sc_bytes_out_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3143 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003144{
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003145 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3146
3147 if (!stkctr)
3148 return 0;
3149
Willy Tarreau37406352012-04-23 16:16:37 +02003150 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003151 smp->type = SMP_T_UINT;
3152 smp->data.uint = 0;
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003153 if (stkctr->entry != NULL) {
3154 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_BYTES_OUT_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003155 if (!ptr)
3156 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003157 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, bytes_out_rate),
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003158 stkctr->table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003159 }
3160 return 1;
3161}
3162
Willy Tarreau563eef42013-07-23 18:32:02 +02003163/* set <smp> to the number of active trackers on the SC entry in the session's
3164 * tracked frontend counters. Supports being called as "sc[0-9]_trackers" only.
3165 */
Willy Tarreau2406db42012-12-09 12:16:43 +01003166static int
Willy Tarreau563eef42013-07-23 18:32:02 +02003167smp_fetch_sc_trackers(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02003168 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau2406db42012-12-09 12:16:43 +01003169{
Willy Tarreau563eef42013-07-23 18:32:02 +02003170 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
Willy Tarreau2406db42012-12-09 12:16:43 +01003171
Willy Tarreau563eef42013-07-23 18:32:02 +02003172 if (!stkctr)
Willy Tarreau2406db42012-12-09 12:16:43 +01003173 return 0;
3174
Willy Tarreau563eef42013-07-23 18:32:02 +02003175 smp->flags = SMP_F_VOL_TEST;
3176 smp->type = SMP_T_UINT;
3177 smp->data.uint = stkctr->entry->ref_cnt;
3178 return 1;
Willy Tarreaue25c9172013-05-28 18:32:20 +02003179}
3180
Willy Tarreau34db1082012-04-19 17:16:54 +02003181/* set temp integer to the number of used entries in the table pointed to by expr.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02003182 * Accepts exactly 1 argument of type table.
Willy Tarreau34db1082012-04-19 17:16:54 +02003183 */
Willy Tarreauc735a072011-03-29 00:57:02 +02003184static int
Willy Tarreau281c7992013-01-08 01:23:27 +01003185smp_fetch_table_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02003186 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc735a072011-03-29 00:57:02 +02003187{
Willy Tarreau37406352012-04-23 16:16:37 +02003188 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003189 smp->type = SMP_T_UINT;
Willy Tarreau24e32d82012-04-23 23:55:44 +02003190 smp->data.uint = args->data.prx->table.current;
Willy Tarreauc735a072011-03-29 00:57:02 +02003191 return 1;
3192}
3193
Willy Tarreau34db1082012-04-19 17:16:54 +02003194/* set temp integer to the number of free entries in the table pointed to by expr.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02003195 * Accepts exactly 1 argument of type table.
Willy Tarreau34db1082012-04-19 17:16:54 +02003196 */
Willy Tarreauc735a072011-03-29 00:57:02 +02003197static int
Willy Tarreau281c7992013-01-08 01:23:27 +01003198smp_fetch_table_avl(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02003199 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc735a072011-03-29 00:57:02 +02003200{
Willy Tarreau24e32d82012-04-23 23:55:44 +02003201 px = args->data.prx;
Willy Tarreau37406352012-04-23 16:16:37 +02003202 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003203 smp->type = SMP_T_UINT;
3204 smp->data.uint = px->table.size - px->table.current;
Willy Tarreauc735a072011-03-29 00:57:02 +02003205 return 1;
3206}
Willy Tarreau8b22a712010-06-18 17:46:06 +02003207
Willy Tarreau61612d42012-04-19 18:42:05 +02003208/* Note: must not be declared <const> as its list will be overwritten.
3209 * Please take care of keeping this list alphabetically sorted.
3210 */
Willy Tarreaudc13c112013-06-21 23:16:39 +02003211static struct acl_kw_list acl_kws = {ILH, {
Willy Tarreau281c7992013-01-08 01:23:27 +01003212 { /* END */ },
Willy Tarreau8b22a712010-06-18 17:46:06 +02003213}};
3214
Willy Tarreau281c7992013-01-08 01:23:27 +01003215/* Note: must not be declared <const> as its list will be overwritten.
3216 * Please take care of keeping this list alphabetically sorted.
3217 */
Willy Tarreaudc13c112013-06-21 23:16:39 +02003218static struct sample_fetch_kw_list smp_fetch_keywords = {ILH, {
Willy Tarreau0f791d42013-07-23 19:56:43 +02003219 { "sc_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3220 { "sc_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3221 { "sc_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3222 { "sc_conn_cnt", smp_fetch_sc_conn_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3223 { "sc_conn_cur", smp_fetch_sc_conn_cur, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3224 { "sc_conn_rate", smp_fetch_sc_conn_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3225 { "sc_get_gpc0", smp_fetch_sc_get_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3226 { "sc_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3227 { "sc_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3228 { "sc_http_err_rate", smp_fetch_sc_http_err_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3229 { "sc_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3230 { "sc_http_req_rate", smp_fetch_sc_http_req_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3231 { "sc_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3232 { "sc_kbytes_in", smp_fetch_sc_kbytes_in, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3233 { "sc_kbytes_out", smp_fetch_sc_kbytes_out, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3234 { "sc_sess_cnt", smp_fetch_sc_sess_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3235 { "sc_sess_rate", smp_fetch_sc_sess_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3236 { "sc_tracked", smp_fetch_sc_tracked, ARG2(1,UINT,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3237 { "sc_trackers", smp_fetch_sc_trackers, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3238 { "sc0_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3239 { "sc0_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3240 { "sc0_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3241 { "sc0_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3242 { "sc0_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3243 { "sc0_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3244 { "sc0_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3245 { "sc0_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3246 { "sc0_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3247 { "sc0_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3248 { "sc0_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3249 { "sc0_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3250 { "sc0_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3251 { "sc0_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3252 { "sc0_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3253 { "sc0_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3254 { "sc0_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3255 { "sc0_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3256 { "sc0_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3257 { "sc1_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3258 { "sc1_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3259 { "sc1_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3260 { "sc1_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3261 { "sc1_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3262 { "sc1_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3263 { "sc1_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3264 { "sc1_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3265 { "sc1_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3266 { "sc1_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3267 { "sc1_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3268 { "sc1_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3269 { "sc1_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3270 { "sc1_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3271 { "sc1_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3272 { "sc1_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3273 { "sc1_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3274 { "sc1_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3275 { "sc1_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3276 { "sc2_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3277 { "sc2_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3278 { "sc2_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3279 { "sc2_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3280 { "sc2_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3281 { "sc2_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3282 { "sc2_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3283 { "sc2_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3284 { "sc2_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3285 { "sc2_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3286 { "sc2_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3287 { "sc2_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3288 { "sc2_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3289 { "sc2_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3290 { "sc2_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3291 { "sc2_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3292 { "sc2_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3293 { "sc2_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3294 { "sc2_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3295 { "src_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3296 { "src_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3297 { "src_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3298 { "src_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3299 { "src_conn_cur", smp_fetch_sc_conn_cur, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3300 { "src_conn_rate", smp_fetch_sc_conn_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3301 { "src_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3302 { "src_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3303 { "src_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3304 { "src_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3305 { "src_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3306 { "src_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3307 { "src_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3308 { "src_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3309 { "src_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3310 { "src_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3311 { "src_sess_rate", smp_fetch_sc_sess_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3312 { "src_updt_conn_cnt", smp_fetch_src_updt_conn_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3313 { "table_avl", smp_fetch_table_avl, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3314 { "table_cnt", smp_fetch_table_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
Willy Tarreau281c7992013-01-08 01:23:27 +01003315 { /* END */ },
3316}};
3317
Willy Tarreau8b22a712010-06-18 17:46:06 +02003318__attribute__((constructor))
3319static void __session_init(void)
3320{
Willy Tarreau281c7992013-01-08 01:23:27 +01003321 sample_register_fetches(&smp_fetch_keywords);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003322 acl_register_keywords(&acl_kws);
3323}
3324
Willy Tarreaubaaee002006-06-26 02:48:02 +02003325/*
3326 * Local variables:
3327 * c-indent-level: 8
3328 * c-basic-offset: 8
3329 * End:
3330 */