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Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
Willy Tarreau81f9aa32010-06-01 17:45:26 +02002 * Session management functions.
Willy Tarreaubaaee002006-06-26 02:48:02 +02003 *
Willy Tarreaud28c3532012-04-19 19:28:33 +02004 * Copyright 2000-2012 Willy Tarreau <w@1wt.eu>
Willy Tarreaubaaee002006-06-26 02:48:02 +02005 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 *
11 */
12
13#include <stdlib.h>
Willy Tarreau81f9aa32010-06-01 17:45:26 +020014#include <unistd.h>
15#include <fcntl.h>
Willy Tarreaue3ba5f02006-06-29 18:54:54 +020016
17#include <common/config.h>
Willy Tarreau9b28e032012-10-12 23:49:43 +020018#include <common/buffer.h>
Willy Tarreau7c669d72008-06-20 15:04:11 +020019#include <common/debug.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020020#include <common/memory.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020021
Willy Tarreaubaaee002006-06-26 02:48:02 +020022#include <types/capture.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010023#include <types/global.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020024
Willy Tarreau1d0dfb12009-07-07 15:10:31 +020025#include <proto/acl.h>
Willy Tarreau61612d42012-04-19 18:42:05 +020026#include <proto/arg.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010027#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020028#include <proto/channel.h>
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +010029#include <proto/checks.h>
Willy Tarreaud2274c62012-07-06 14:29:45 +020030#include <proto/connection.h>
Willy Tarreau5ca791d2009-08-16 19:06:42 +020031#include <proto/dumpstats.h>
Willy Tarreaudd2f85e2012-09-02 22:34:23 +020032#include <proto/fd.h>
Willy Tarreau91c43d72010-06-20 11:19:22 +020033#include <proto/freq_ctr.h>
Willy Tarreau3041b9f2010-10-15 23:25:20 +020034#include <proto/frontend.h>
Willy Tarreau8d5d7f22007-01-21 19:16:41 +010035#include <proto/hdr_idx.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +020036#include <proto/listener.h>
Willy Tarreau332f8bf2007-05-13 21:36:56 +020037#include <proto/log.h>
Willy Tarreaucbaaec42012-09-06 11:32:07 +020038#include <proto/raw_sock.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020039#include <proto/session.h>
Willy Tarreau3eba98a2009-01-25 13:56:13 +010040#include <proto/pipe.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010041#include <proto/proto_http.h>
42#include <proto/proto_tcp.h>
Willy Tarreau1d0dfb12009-07-07 15:10:31 +020043#include <proto/proxy.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020044#include <proto/queue.h>
Willy Tarreau7f062c42009-03-05 18:43:00 +010045#include <proto/server.h>
Willy Tarreaucd3b0942012-04-27 21:52:18 +020046#include <proto/sample.h>
Emeric Brun1d33b292010-01-04 15:47:17 +010047#include <proto/stick_table.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010048#include <proto/stream_interface.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010049#include <proto/task.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020050
Willy Tarreauc6ca1a02007-05-13 19:43:47 +020051struct pool_head *pool2_session;
Willy Tarreauf54f8bd2008-11-23 19:53:55 +010052struct list sessions;
Willy Tarreaubaaee002006-06-26 02:48:02 +020053
Willy Tarreau071e1372012-10-03 01:39:48 +020054static int conn_session_complete(struct connection *conn);
Willy Tarreau9683e9a2012-10-03 21:17:23 +020055static int conn_session_update(struct connection *conn);
Willy Tarreau2542b532012-08-31 16:01:23 +020056static struct task *expire_mini_session(struct task *t);
57int session_complete(struct session *s);
58
Willy Tarreau5e75e272012-10-02 21:21:20 +020059/* data layer callbacks for an embryonic session */
60struct data_cb sess_conn_cb = {
61 .recv = NULL,
62 .send = NULL,
Willy Tarreau9683e9a2012-10-03 21:17:23 +020063 .wake = conn_session_update,
Willy Tarreau071e1372012-10-03 01:39:48 +020064 .init = conn_session_complete,
Willy Tarreau5e75e272012-10-02 21:21:20 +020065};
66
Willy Tarreau2542b532012-08-31 16:01:23 +020067/* This function is called from the protocol layer accept() in order to
68 * instanciate a new embryonic session on behalf of a given listener and
69 * frontend. It returns a positive value upon success, 0 if the connection
70 * can be ignored, or a negative value upon critical failure. The accepted
71 * file descriptor is closed if we return <= 0.
Willy Tarreau81f9aa32010-06-01 17:45:26 +020072 */
73int session_accept(struct listener *l, int cfd, struct sockaddr_storage *addr)
74{
Willy Tarreaub363a1f2013-10-01 10:45:07 +020075 struct connection *cli_conn;
Willy Tarreau81f9aa32010-06-01 17:45:26 +020076 struct proxy *p = l->frontend;
77 struct session *s;
Willy Tarreau81f9aa32010-06-01 17:45:26 +020078 struct task *t;
Willy Tarreauabe8ea52010-11-11 10:56:04 +010079 int ret;
80
81
82 ret = -1; /* assume unrecoverable error by default */
Willy Tarreau81f9aa32010-06-01 17:45:26 +020083
Willy Tarreau32e3c6a2013-10-11 19:34:20 +020084 if (unlikely((cli_conn = conn_new()) == NULL))
Willy Tarreau81f9aa32010-06-01 17:45:26 +020085 goto out_close;
Willy Tarreau81f9aa32010-06-01 17:45:26 +020086
Willy Tarreau32e3c6a2013-10-11 19:34:20 +020087 conn_prepare(cli_conn, l->proto, l->xprt);
Willy Tarreauf2943dc2012-10-26 20:10:28 +020088
Willy Tarreau32e3c6a2013-10-11 19:34:20 +020089 cli_conn->t.sock.fd = cfd;
90 cli_conn->addr.from = *addr;
91 cli_conn->flags |= CO_FL_ADDR_FROM_SET;
92 cli_conn->target = &l->obj_type;
93
94 if (unlikely((s = pool_alloc2(pool2_session)) == NULL))
95 goto out_free_conn;
Willy Tarreauf2943dc2012-10-26 20:10:28 +020096
Willy Tarreau2542b532012-08-31 16:01:23 +020097 /* minimum session initialization required for an embryonic session is
98 * fairly low. We need very little to execute L4 ACLs, then we need a
99 * task to make the client-side connection live on its own.
100 * - flags
101 * - stick-entry tracking
102 */
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200103 s->flags = 0;
104 s->logs.logwait = p->to_log;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200105 s->logs.level = 0;
Willy Tarreaud5ca9ab2013-05-28 17:40:25 +0200106
107 memset(s->stkctr, 0, sizeof(s->stkctr));
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200108
Willy Tarreau2542b532012-08-31 16:01:23 +0200109 s->listener = l;
110 s->fe = p;
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100111
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200112 /* On a mini-session, the connection is directly attached to the
113 * session's target so that we don't need to initialize the stream
114 * interfaces. Another benefit is that it's easy to detect a mini-
115 * session in dumps using this : it's the only one which has a
116 * connection in s->target.
117 */
118 s->target = &cli_conn->obj_type;
119
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200120 s->logs.accept_date = date; /* user-visible date for logging */
121 s->logs.tv_accept = now; /* corrected date for internal use */
Willy Tarreau1f0da242014-01-25 11:01:50 +0100122 s->uniq_id = global.req_count++;
Willy Tarreau2542b532012-08-31 16:01:23 +0200123 p->feconn++;
124 /* This session was accepted, count it now */
125 if (p->feconn > p->fe_counters.conn_max)
126 p->fe_counters.conn_max = p->feconn;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200127
Willy Tarreau2542b532012-08-31 16:01:23 +0200128 proxy_inc_fe_conn_ctr(l, p);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200129
Willy Tarreau59e3ff42013-12-16 02:16:50 +0100130 /* Add the minimum callbacks to prepare the connection's control layer.
131 * We need this so that we can safely execute the ACLs used by the
132 * "tcp-request connection" ruleset. We also carefully attach the
133 * connection to the stream interface without initializing the rest,
134 * so that ACLs can use si[0]->end.
135 */
136 si_attach_conn(&s->si[0], cli_conn);
137 conn_attach(cli_conn, s, &sess_conn_cb);
138 conn_ctrl_init(cli_conn);
139
Willy Tarreau2cff2f72013-12-16 10:12:54 +0100140 /* now evaluate the tcp-request layer4 rules. Since we expect to be able
141 * to abort right here as soon as possible, we check the rules before
142 * even initializing the stream interfaces.
143 */
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200144 if ((l->options & LI_O_TCP_RULES) && !tcp_exec_req_rules(s)) {
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200145 /* let's do a no-linger now to close with a single RST. */
146 setsockopt(cfd, SOL_SOCKET, SO_LINGER, (struct linger *) &nolinger, sizeof(struct linger));
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100147 ret = 0; /* successful termination */
Willy Tarreau2542b532012-08-31 16:01:23 +0200148 goto out_free_session;
149 }
150
Willy Tarreau1bc4aab2012-10-08 20:11:03 +0200151#ifndef USE_ACCEPT4
152 /* Adjust some socket options if the connection was accepted by a plain
153 * accept() syscall.
154 */
Willy Tarreau82569f92012-09-27 23:48:56 +0200155 if (unlikely(fcntl(cfd, F_SETFL, O_NONBLOCK) == -1))
156 goto out_free_session;
Willy Tarreau1bc4aab2012-10-08 20:11:03 +0200157#endif
Willy Tarreau82569f92012-09-27 23:48:56 +0200158
159 /* monitor-net and health mode are processed immediately after TCP
160 * connection rules. This way it's possible to block them, but they
161 * never use the lower data layers, they send directly over the socket,
162 * as they were designed for. We first flush the socket receive buffer
163 * in order to avoid emission of an RST by the system. We ignore any
164 * error.
165 */
166 if (unlikely((p->mode == PR_MODE_HEALTH) ||
167 ((l->options & LI_O_CHK_MONNET) &&
168 addr->ss_family == AF_INET &&
169 (((struct sockaddr_in *)addr)->sin_addr.s_addr & p->mon_mask.s_addr) == p->mon_net.s_addr))) {
170 /* we have 4 possibilities here :
171 * - HTTP mode, from monitoring address => send "HTTP/1.0 200 OK"
172 * - HEALTH mode with HTTP check => send "HTTP/1.0 200 OK"
173 * - HEALTH mode without HTTP check => just send "OK"
174 * - TCP mode from monitoring address => just close
175 */
Willy Tarreau2b57cb82013-06-10 19:56:38 +0200176 if (l->proto->drain)
177 l->proto->drain(cfd);
Willy Tarreau82569f92012-09-27 23:48:56 +0200178 if (p->mode == PR_MODE_HTTP ||
179 (p->mode == PR_MODE_HEALTH && (p->options2 & PR_O2_CHK_ANY) == PR_O2_HTTP_CHK))
180 send(cfd, "HTTP/1.0 200 OK\r\n\r\n", 19, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_MORE);
181 else if (p->mode == PR_MODE_HEALTH)
182 send(cfd, "OK\n", 3, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_MORE);
183 ret = 0;
184 goto out_free_session;
185 }
186
Willy Tarreau22cda212012-08-31 17:43:29 +0200187 /* wait for a PROXY protocol header */
188 if (l->options & LI_O_ACC_PROXY) {
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200189 cli_conn->flags |= CO_FL_ACCEPT_PROXY;
190 conn_sock_want_recv(cli_conn);
Willy Tarreau22cda212012-08-31 17:43:29 +0200191 }
192
Willy Tarreau2542b532012-08-31 16:01:23 +0200193 if (unlikely((t = task_new()) == NULL))
194 goto out_free_session;
195
196 t->context = s;
197 t->nice = l->nice;
198 s->task = t;
199
Willy Tarreau59e3ff42013-12-16 02:16:50 +0100200 /* Finish setting the callbacks. Right now the transport layer is present
Willy Tarreauf7bc57c2012-10-03 00:19:48 +0200201 * but not initialized. Also note we need to be careful as the stream
202 * int is not initialized yet.
Willy Tarreau2542b532012-08-31 16:01:23 +0200203 */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200204 conn_data_want_recv(cli_conn);
205 if (conn_xprt_init(cli_conn) < 0)
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100206 goto out_free_task;
Willy Tarreau2542b532012-08-31 16:01:23 +0200207
208 /* OK, now either we have a pending handshake to execute with and
209 * then we must return to the I/O layer, or we can proceed with the
210 * end of the session initialization. In case of handshake, we also
211 * set the I/O timeout to the frontend's client timeout.
212 */
213
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200214 if (cli_conn->flags & CO_FL_HANDSHAKE) {
Willy Tarreau2542b532012-08-31 16:01:23 +0200215 t->process = expire_mini_session;
216 t->expire = tick_add_ifset(now_ms, p->timeout.client);
217 task_queue(t);
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200218 cli_conn->flags |= CO_FL_INIT_DATA | CO_FL_WAKE_DATA;
Willy Tarreau2542b532012-08-31 16:01:23 +0200219 return 1;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200220 }
221
Willy Tarreau815f5ec2012-11-06 00:14:25 +0100222 /* OK let's complete session initialization since there is no handshake */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200223 cli_conn->flags |= CO_FL_CONNECTED;
Willy Tarreau2542b532012-08-31 16:01:23 +0200224 ret = session_complete(s);
225 if (ret > 0)
226 return ret;
227
228 /* Error unrolling */
229 out_free_task:
230 task_free(t);
231 out_free_session:
232 p->feconn--;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100233 if (s->stkctr[0].entry || s->stkctr[1].entry)
Willy Tarreau2542b532012-08-31 16:01:23 +0200234 session_store_counters(s);
235 pool_free2(pool2_session, s);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200236 out_free_conn:
237 cli_conn->flags &= ~CO_FL_XPRT_TRACKED;
238 conn_xprt_close(cli_conn);
239 conn_free(cli_conn);
Willy Tarreau2542b532012-08-31 16:01:23 +0200240 out_close:
Willy Tarreauf7bc57c2012-10-03 00:19:48 +0200241 if (ret < 0 && l->xprt == &raw_sock && p->mode == PR_MODE_HTTP) {
Willy Tarreau2542b532012-08-31 16:01:23 +0200242 /* critical error, no more memory, try to emit a 500 response */
Willy Tarreau05bf5e12013-10-20 23:10:28 +0200243 struct chunk *err_msg = &p->errmsg[HTTP_ERR_500];
244 if (!err_msg->str)
245 err_msg = &http_err_chunks[HTTP_ERR_500];
Willy Tarreau2542b532012-08-31 16:01:23 +0200246 send(cfd, err_msg->str, err_msg->len, MSG_DONTWAIT|MSG_NOSIGNAL);
247 }
248
249 if (fdtab[cfd].owner)
250 fd_delete(cfd);
251 else
252 close(cfd);
253 return ret;
254}
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100255
Willy Tarreau0af29122012-12-03 15:35:00 +0100256
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200257/* prepare the trash with a log prefix for session <s>. It only works with
258 * embryonic sessions based on a real connection.
259 */
Willy Tarreau0af29122012-12-03 15:35:00 +0100260static void prepare_mini_sess_log_prefix(struct session *s)
261{
262 struct tm tm;
263 char pn[INET6_ADDRSTRLEN];
264 int ret;
265 char *end;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200266 struct connection *cli_conn = __objt_conn(s->target);
Willy Tarreau0af29122012-12-03 15:35:00 +0100267
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200268 ret = addr_to_str(&cli_conn->addr.from, pn, sizeof(pn));
Willy Tarreau0af29122012-12-03 15:35:00 +0100269 if (ret <= 0)
270 chunk_printf(&trash, "unknown [");
271 else if (ret == AF_UNIX)
272 chunk_printf(&trash, "%s:%d [", pn, s->listener->luid);
273 else
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200274 chunk_printf(&trash, "%s:%d [", pn, get_host_port(&cli_conn->addr.from));
Willy Tarreau0af29122012-12-03 15:35:00 +0100275
276 get_localtime(s->logs.accept_date.tv_sec, &tm);
277 end = date2str_log(trash.str + trash.len, &tm, &(s->logs.accept_date), trash.size - trash.len);
278 trash.len = end - trash.str;
279 if (s->listener->name)
280 chunk_appendf(&trash, "] %s/%s", s->fe->id, s->listener->name);
281 else
282 chunk_appendf(&trash, "] %s/%d", s->fe->id, s->listener->luid);
283}
284
Willy Tarreau2542b532012-08-31 16:01:23 +0200285/* This function kills an existing embryonic session. It stops the connection's
Willy Tarreauf7bc57c2012-10-03 00:19:48 +0200286 * transport layer, releases assigned resources, resumes the listener if it was
Willy Tarreau2542b532012-08-31 16:01:23 +0200287 * disabled and finally kills the file descriptor.
288 */
289static void kill_mini_session(struct session *s)
290{
Willy Tarreau0af29122012-12-03 15:35:00 +0100291 int level = LOG_INFO;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200292 struct connection *conn = __objt_conn(s->target);
Willy Tarreau0af29122012-12-03 15:35:00 +0100293 unsigned int log = s->logs.logwait;
294 const char *err_msg;
295
296 if (s->fe->options2 & PR_O2_LOGERRORS)
297 level = LOG_ERR;
298
299 if (log && (s->fe->options & PR_O_NULLNOLOG)) {
300 /* with "option dontlognull", we don't log connections with no transfer */
Willy Tarreau8e3bf692012-12-03 15:41:18 +0100301 if (!conn->err_code ||
Willy Tarreau20879a02012-12-03 16:32:10 +0100302 conn->err_code == CO_ER_PRX_EMPTY || conn->err_code == CO_ER_PRX_ABORT ||
303 conn->err_code == CO_ER_SSL_EMPTY || conn->err_code == CO_ER_SSL_ABORT)
Willy Tarreau0af29122012-12-03 15:35:00 +0100304 log = 0;
305 }
306
307 if (log) {
308 if (!conn->err_code && (s->task->state & TASK_WOKEN_TIMER)) {
309 if (conn->flags & CO_FL_ACCEPT_PROXY)
310 conn->err_code = CO_ER_PRX_TIMEOUT;
311 else if (conn->flags & CO_FL_SSL_WAIT_HS)
312 conn->err_code = CO_ER_SSL_TIMEOUT;
313 }
314
315 prepare_mini_sess_log_prefix(s);
316 err_msg = conn_err_code_str(conn);
317 if (err_msg)
318 send_log(s->fe, level, "%s: %s\n", trash.str, err_msg);
319 else
320 send_log(s->fe, level, "%s: unknown connection error (code=%d flags=%08x)\n",
321 trash.str, conn->err_code, conn->flags);
322 }
323
Willy Tarreau2542b532012-08-31 16:01:23 +0200324 /* kill the connection now */
Willy Tarreauf79c8172013-10-21 16:30:56 +0200325 conn_force_close(conn);
Willy Tarreau2542b532012-08-31 16:01:23 +0200326
327 s->fe->feconn--;
Willy Tarreau7af7d592013-07-01 18:07:03 +0200328 session_store_counters(s);
Willy Tarreau2542b532012-08-31 16:01:23 +0200329
330 if (!(s->listener->options & LI_O_UNLIMITED))
331 actconn--;
332 jobs--;
333 s->listener->nbconn--;
334 if (s->listener->state == LI_FULL)
335 resume_listener(s->listener);
336
337 /* Dequeues all of the listeners waiting for a resource */
338 if (!LIST_ISEMPTY(&global_listener_queue))
339 dequeue_all_listeners(&global_listener_queue);
340
341 if (!LIST_ISEMPTY(&s->fe->listener_queue) &&
342 (!s->fe->fe_sps_lim || freq_ctr_remain(&s->fe->fe_sess_per_sec, s->fe->fe_sps_lim, 0) > 0))
343 dequeue_all_listeners(&s->fe->listener_queue);
344
345 task_delete(s->task);
346 task_free(s->task);
347
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200348 pool_free2(pool2_connection, conn);
Willy Tarreau2542b532012-08-31 16:01:23 +0200349 pool_free2(pool2_session, s);
350}
351
Willy Tarreau22cda212012-08-31 17:43:29 +0200352/* Finish initializing a session from a connection, or kills it if the
353 * connection shows and error. Returns <0 if the connection was killed.
Willy Tarreau2542b532012-08-31 16:01:23 +0200354 */
Willy Tarreau071e1372012-10-03 01:39:48 +0200355static int conn_session_complete(struct connection *conn)
Willy Tarreau2542b532012-08-31 16:01:23 +0200356{
Willy Tarreau5e75e272012-10-02 21:21:20 +0200357 struct session *s = conn->owner;
Willy Tarreau2542b532012-08-31 16:01:23 +0200358
Willy Tarreau22cda212012-08-31 17:43:29 +0200359 if (!(conn->flags & CO_FL_ERROR) && (session_complete(s) > 0)) {
Willy Tarreau071e1372012-10-03 01:39:48 +0200360 conn->flags &= ~CO_FL_INIT_DATA;
Willy Tarreau2542b532012-08-31 16:01:23 +0200361 return 0;
362 }
363
364 /* kill the connection now */
365 kill_mini_session(s);
366 return -1;
367}
368
Willy Tarreau9683e9a2012-10-03 21:17:23 +0200369/* Update an embryonic session status. The connection is killed in case of
370 * error, and <0 will be returned. Otherwise it does nothing.
371 */
372static int conn_session_update(struct connection *conn)
373{
374 if (conn->flags & CO_FL_ERROR) {
375 kill_mini_session(conn->owner);
376 return -1;
377 }
378 return 0;
379}
380
Willy Tarreau2542b532012-08-31 16:01:23 +0200381/* Manages embryonic sessions timeout. It is only called when the timeout
382 * strikes and performs the required cleanup.
383 */
384static struct task *expire_mini_session(struct task *t)
385{
386 struct session *s = t->context;
387
388 if (!(t->state & TASK_WOKEN_TIMER))
389 return t;
390
391 kill_mini_session(s);
392 return NULL;
393}
394
395/* This function is called from the I/O handler which detects the end of
396 * handshake, in order to complete initialization of a valid session. It must
397 * be called with an embryonic session. It returns a positive value upon
398 * success, 0 if the connection can be ignored, or a negative value upon
399 * critical failure. The accepted file descriptor is closed if we return <= 0.
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200400 * The client-side end point is assumed to be a connection.
Willy Tarreau2542b532012-08-31 16:01:23 +0200401 */
402int session_complete(struct session *s)
403{
404 struct listener *l = s->listener;
405 struct proxy *p = s->fe;
406 struct http_txn *txn;
407 struct task *t = s->task;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200408 struct connection *conn = __objt_conn(s->target);
Willy Tarreau2542b532012-08-31 16:01:23 +0200409 int ret;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100410 int i;
Willy Tarreau2542b532012-08-31 16:01:23 +0200411
412 ret = -1; /* assume unrecoverable error by default */
413
414 /* OK, we're keeping the session, so let's properly initialize the session */
415 LIST_ADDQ(&sessions, &s->list);
416 LIST_INIT(&s->back_refs);
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200417
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200418 s->flags |= SN_INITIALIZED;
Willy Tarreau2542b532012-08-31 16:01:23 +0200419 s->unique_id = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200420
421 t->process = l->handler;
422 t->context = s;
423 t->expire = TICK_ETERNITY;
424
425 /* Note: initially, the session's backend points to the frontend.
426 * This changes later when switching rules are executed or
427 * when the default backend is assigned.
428 */
429 s->be = s->fe;
430 s->req = s->rep = NULL; /* will be allocated later */
William Lallemand82fe75c2012-10-23 10:25:10 +0200431 s->comp_algo = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200432
433 /* Let's count a session now */
Willy Tarreaub36b4242010-06-04 20:59:39 +0200434 proxy_inc_fe_sess_ctr(l, p);
Willy Tarreau91c43d72010-06-20 11:19:22 +0200435
Willy Tarreaub4c84932013-07-23 19:15:30 +0200436 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200437 void *ptr;
438
Willy Tarreau20d46a52012-12-09 15:55:40 +0100439 if (!s->stkctr[i].entry)
440 continue;
441
442 ptr = stktable_data_ptr(s->stkctr[i].table, s->stkctr[i].entry, STKTABLE_DT_SESS_CNT);
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200443 if (ptr)
444 stktable_data_cast(ptr, sess_cnt)++;
445
Willy Tarreau20d46a52012-12-09 15:55:40 +0100446 ptr = stktable_data_ptr(s->stkctr[i].table, s->stkctr[i].entry, STKTABLE_DT_SESS_RATE);
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200447 if (ptr)
448 update_freq_ctr_period(&stktable_data_cast(ptr, sess_rate),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100449 s->stkctr[i].table->data_arg[STKTABLE_DT_SESS_RATE].u, 1);
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200450 }
451
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200452 /* this part should be common with other protocols */
453 si_reset(&s->si[0], t);
454 si_set_state(&s->si[0], SI_ST_EST);
455
456 /* attach the incoming connection to the stream interface now */
457 si_attach_conn(&s->si[0], conn);
458
459 if (likely(s->fe->options2 & PR_O2_INDEPSTR))
460 s->si[0].flags |= SI_FL_INDEP_STR;
461
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200462 /* pre-initialize the other side's stream interface to an INIT state. The
463 * callbacks will be initialized before attempting to connect.
464 */
Willy Tarreau3ed35ef2013-10-24 11:51:38 +0200465 si_reset(&s->si[1], t);
Willy Tarreau2a6e8802013-10-24 15:50:53 +0200466 si_detach(&s->si[1]);
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200467
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200468 if (likely(s->fe->options2 & PR_O2_INDEPSTR))
469 s->si[1].flags |= SI_FL_INDEP_STR;
470
Willy Tarreau9bd0d742011-07-20 00:17:39 +0200471 session_init_srv_conn(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100472 s->target = NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200473 s->pend_pos = NULL;
474
475 /* init store persistence */
476 s->store_count = 0;
477
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200478 if (unlikely((s->req = pool_alloc2(pool2_channel)) == NULL))
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200479 goto out_free_task; /* no memory */
480
Willy Tarreau9b28e032012-10-12 23:49:43 +0200481 if (unlikely((s->req->buf = pool_alloc2(pool2_buffer)) == NULL))
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200482 goto out_free_req; /* no memory */
483
Willy Tarreau9b28e032012-10-12 23:49:43 +0200484 if (unlikely((s->rep = pool_alloc2(pool2_channel)) == NULL))
485 goto out_free_req_buf; /* no memory */
486
487 if (unlikely((s->rep->buf = pool_alloc2(pool2_buffer)) == NULL))
488 goto out_free_rep; /* no memory */
489
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200490 /* initialize the request buffer */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200491 s->req->buf->size = global.tune.bufsize;
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200492 channel_init(s->req);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200493 s->req->prod = &s->si[0];
494 s->req->cons = &s->si[1];
495 s->si[0].ib = s->si[1].ob = s->req;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200496 s->req->flags |= CF_READ_ATTACHED; /* the producer is already connected */
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200497
498 /* activate default analysers enabled for this listener */
499 s->req->analysers = l->analysers;
500
501 s->req->wto = TICK_ETERNITY;
502 s->req->rto = TICK_ETERNITY;
503 s->req->rex = TICK_ETERNITY;
504 s->req->wex = TICK_ETERNITY;
505 s->req->analyse_exp = TICK_ETERNITY;
506
507 /* initialize response buffer */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200508 s->rep->buf->size = global.tune.bufsize;
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200509 channel_init(s->rep);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200510 s->rep->prod = &s->si[1];
511 s->rep->cons = &s->si[0];
512 s->si[0].ob = s->si[1].ib = s->rep;
513 s->rep->analysers = 0;
514
Willy Tarreau96e31212011-05-30 18:10:30 +0200515 if (s->fe->options2 & PR_O2_NODELAY) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200516 s->req->flags |= CF_NEVER_WAIT;
517 s->rep->flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200518 }
519
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200520 s->rep->rto = TICK_ETERNITY;
521 s->rep->wto = TICK_ETERNITY;
522 s->rep->rex = TICK_ETERNITY;
523 s->rep->wex = TICK_ETERNITY;
524 s->rep->analyse_exp = TICK_ETERNITY;
525
Willy Tarreau62f791e2012-03-09 11:32:30 +0100526 txn = &s->txn;
527 /* Those variables will be checked and freed if non-NULL in
528 * session.c:session_free(). It is important that they are
529 * properly initialized.
530 */
531 txn->sessid = NULL;
532 txn->srv_cookie = NULL;
533 txn->cli_cookie = NULL;
534 txn->uri = NULL;
535 txn->req.cap = NULL;
536 txn->rsp.cap = NULL;
537 txn->hdr_idx.v = NULL;
538 txn->hdr_idx.size = txn->hdr_idx.used = 0;
Willy Tarreau068621e2013-12-23 15:11:25 +0100539 txn->flags = 0;
Willy Tarreau62f791e2012-03-09 11:32:30 +0100540 txn->req.flags = 0;
541 txn->rsp.flags = 0;
542 /* the HTTP messages need to know what buffer they're associated with */
Willy Tarreau394db372012-10-12 22:40:39 +0200543 txn->req.chn = s->req;
544 txn->rsp.chn = s->rep;
Willy Tarreau62f791e2012-03-09 11:32:30 +0100545
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200546 /* finish initialization of the accepted file descriptor */
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200547 conn_data_want_recv(conn);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200548
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100549 if (p->accept && (ret = p->accept(s)) <= 0) {
550 /* Either we had an unrecoverable error (<0) or work is
551 * finished (=0, eg: monitoring), in both situations,
552 * we can release everything and close.
553 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200554 goto out_free_rep_buf;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200555 }
556
Willy Tarreau93dbc2b2012-10-12 18:01:49 +0200557 /* if logs require transport layer information, note it on the connection */
558 if (s->logs.logwait & LW_XPRT)
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200559 conn->flags |= CO_FL_XPRT_TRACKED;
Willy Tarreau93dbc2b2012-10-12 18:01:49 +0200560
Willy Tarreau2542b532012-08-31 16:01:23 +0200561 /* we want the connection handler to notify the stream interface about updates. */
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200562 conn->flags |= CO_FL_WAKE_DATA;
Willy Tarreau2542b532012-08-31 16:01:23 +0200563
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200564 /* it is important not to call the wakeup function directly but to
565 * pass through task_wakeup(), because this one knows how to apply
566 * priorities to tasks.
567 */
568 task_wakeup(t, TASK_WOKEN_INIT);
569 return 1;
570
571 /* Error unrolling */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200572 out_free_rep_buf:
573 pool_free2(pool2_buffer, s->rep->buf);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200574 out_free_rep:
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200575 pool_free2(pool2_channel, s->rep);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200576 out_free_req_buf:
577 pool_free2(pool2_buffer, s->req->buf);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200578 out_free_req:
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200579 pool_free2(pool2_channel, s->req);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200580 out_free_task:
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100581 return ret;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200582}
583
Willy Tarreaubaaee002006-06-26 02:48:02 +0200584/*
585 * frees the context associated to a session. It must have been removed first.
586 */
Simon Hormandec5be42011-06-08 09:19:07 +0900587static void session_free(struct session *s)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200588{
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100589 struct http_txn *txn = &s->txn;
Willy Tarreau632f5a72007-07-11 10:42:35 +0200590 struct proxy *fe = s->fe;
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100591 struct bref *bref, *back;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200592 struct connection *cli_conn = objt_conn(s->si[0].end);
Willy Tarreaua4cda672010-06-06 18:28:49 +0200593 int i;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100594
Willy Tarreaubaaee002006-06-26 02:48:02 +0200595 if (s->pend_pos)
596 pendconn_free(s->pend_pos);
Willy Tarreau922a8062008-12-04 09:33:58 +0100597
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100598 if (objt_server(s->target)) { /* there may be requests left pending in queue */
Willy Tarreau1e62de62008-11-11 20:20:02 +0100599 if (s->flags & SN_CURR_SESS) {
600 s->flags &= ~SN_CURR_SESS;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100601 objt_server(s->target)->cur_sess--;
Willy Tarreau1e62de62008-11-11 20:20:02 +0100602 }
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100603 if (may_dequeue_tasks(objt_server(s->target), s->be))
604 process_srv_queue(objt_server(s->target));
Willy Tarreau1e62de62008-11-11 20:20:02 +0100605 }
Willy Tarreau922a8062008-12-04 09:33:58 +0100606
Willy Tarreau7c669d72008-06-20 15:04:11 +0200607 if (unlikely(s->srv_conn)) {
608 /* the session still has a reserved slot on a server, but
609 * it should normally be only the same as the one above,
610 * so this should not happen in fact.
611 */
612 sess_change_server(s, NULL);
613 }
614
Willy Tarreau543db622012-11-15 16:41:22 +0100615 if (s->flags & SN_COMP_READY)
William Lallemand1c2d6222012-10-30 15:52:53 +0100616 s->comp_algo->end(&s->comp_ctx);
Willy Tarreau543db622012-11-15 16:41:22 +0100617 s->comp_algo = NULL;
618 s->flags &= ~SN_COMP_READY;
William Lallemand82fe75c2012-10-23 10:25:10 +0200619
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100620 if (s->req->pipe)
621 put_pipe(s->req->pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100622
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100623 if (s->rep->pipe)
624 put_pipe(s->rep->pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100625
Willy Tarreau9b28e032012-10-12 23:49:43 +0200626 pool_free2(pool2_buffer, s->req->buf);
627 pool_free2(pool2_buffer, s->rep->buf);
628
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200629 pool_free2(pool2_channel, s->req);
630 pool_free2(pool2_channel, s->rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200631
Willy Tarreau46023632010-01-07 22:51:47 +0100632 http_end_txn(s);
633
Willy Tarreau1e954912012-10-12 17:50:05 +0200634 /* ensure the client-side transport layer is destroyed */
Willy Tarreauf79c8172013-10-21 16:30:56 +0200635 if (cli_conn)
636 conn_force_close(cli_conn);
Willy Tarreau1e954912012-10-12 17:50:05 +0200637
Willy Tarreaua4cda672010-06-06 18:28:49 +0200638 for (i = 0; i < s->store_count; i++) {
639 if (!s->store[i].ts)
640 continue;
641 stksess_free(s->store[i].table, s->store[i].ts);
642 s->store[i].ts = NULL;
643 }
644
Willy Tarreau34eb6712011-10-24 18:15:04 +0200645 pool_free2(pool2_hdr_idx, txn->hdr_idx.v);
Willy Tarreau92fb9832007-10-16 17:34:28 +0200646 if (fe) {
Willy Tarreau46023632010-01-07 22:51:47 +0100647 pool_free2(fe->rsp_cap_pool, txn->rsp.cap);
648 pool_free2(fe->req_cap_pool, txn->req.cap);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200649 }
Willy Tarreau0937bc42009-12-22 15:03:09 +0100650
Willy Tarreau7af7d592013-07-01 18:07:03 +0200651 session_store_counters(s);
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +0200652
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100653 list_for_each_entry_safe(bref, back, &s->back_refs, users) {
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100654 /* we have to unlink all watchers. We must not relink them if
655 * this session was the last one in the list.
656 */
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100657 LIST_DEL(&bref->users);
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100658 LIST_INIT(&bref->users);
659 if (s->list.n != &sessions)
660 LIST_ADDQ(&LIST_ELEM(s->list.n, struct session *, list)->back_refs, &bref->users);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100661 bref->ref = s->list.n;
662 }
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100663 LIST_DEL(&s->list);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200664 si_release_endpoint(&s->si[1]);
665 si_release_endpoint(&s->si[0]);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200666 pool_free2(pool2_session, s);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200667
668 /* We may want to free the maximum amount of pools if the proxy is stopping */
Willy Tarreau92fb9832007-10-16 17:34:28 +0200669 if (fe && unlikely(fe->state == PR_STSTOPPED)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200670 pool_flush2(pool2_buffer);
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200671 pool_flush2(pool2_channel);
Willy Tarreau34eb6712011-10-24 18:15:04 +0200672 pool_flush2(pool2_hdr_idx);
Willy Tarreau48d63db2008-08-03 17:41:33 +0200673 pool_flush2(pool2_requri);
674 pool_flush2(pool2_capture);
675 pool_flush2(pool2_session);
676 pool_flush2(fe->req_cap_pool);
677 pool_flush2(fe->rsp_cap_pool);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200678 }
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200679}
680
681
682/* perform minimal intializations, report 0 in case of error, 1 if OK. */
683int init_session()
684{
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100685 LIST_INIT(&sessions);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200686 pool2_session = create_pool("session", sizeof(struct session), MEM_F_SHARED);
687 return pool2_session != NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200688}
689
Willy Tarreau30e71012007-11-26 20:15:35 +0100690void session_process_counters(struct session *s)
691{
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100692 unsigned long long bytes;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100693 void *ptr;
694 int i;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100695
Willy Tarreau30e71012007-11-26 20:15:35 +0100696 if (s->req) {
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100697 bytes = s->req->total - s->logs.bytes_in;
Willy Tarreau30e71012007-11-26 20:15:35 +0100698 s->logs.bytes_in = s->req->total;
699 if (bytes) {
Willy Tarreau20d46a52012-12-09 15:55:40 +0100700 s->fe->fe_counters.bytes_in += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100701
Willy Tarreau20d46a52012-12-09 15:55:40 +0100702 s->be->be_counters.bytes_in += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100703
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100704 if (objt_server(s->target))
Willy Tarreau20d46a52012-12-09 15:55:40 +0100705 objt_server(s->target)->counters.bytes_in += bytes;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200706
707 if (s->listener->counters)
Willy Tarreau20d46a52012-12-09 15:55:40 +0100708 s->listener->counters->bytes_in += bytes;
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200709
Willy Tarreaub4c84932013-07-23 19:15:30 +0200710 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau20d46a52012-12-09 15:55:40 +0100711 if (!s->stkctr[i].entry)
712 continue;
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_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200717 if (ptr)
718 stktable_data_cast(ptr, bytes_in_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200719
Willy Tarreau20d46a52012-12-09 15:55:40 +0100720 ptr = stktable_data_ptr(s->stkctr[i].table,
721 s->stkctr[i].entry,
722 STKTABLE_DT_BYTES_IN_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200723 if (ptr)
724 update_freq_ctr_period(&stktable_data_cast(ptr, bytes_in_rate),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100725 s->stkctr[i].table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200726 }
Willy Tarreau30e71012007-11-26 20:15:35 +0100727 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100728 }
729
Willy Tarreau30e71012007-11-26 20:15:35 +0100730 if (s->rep) {
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100731 bytes = s->rep->total - s->logs.bytes_out;
Willy Tarreau30e71012007-11-26 20:15:35 +0100732 s->logs.bytes_out = s->rep->total;
733 if (bytes) {
Willy Tarreau20d46a52012-12-09 15:55:40 +0100734 s->fe->fe_counters.bytes_out += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100735
Willy Tarreau20d46a52012-12-09 15:55:40 +0100736 s->be->be_counters.bytes_out += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100737
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100738 if (objt_server(s->target))
Willy Tarreau20d46a52012-12-09 15:55:40 +0100739 objt_server(s->target)->counters.bytes_out += bytes;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200740
741 if (s->listener->counters)
Willy Tarreau20d46a52012-12-09 15:55:40 +0100742 s->listener->counters->bytes_out += bytes;
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200743
Willy Tarreaub4c84932013-07-23 19:15:30 +0200744 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau20d46a52012-12-09 15:55:40 +0100745 if (!s->stkctr[i].entry)
746 continue;
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_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200751 if (ptr)
752 stktable_data_cast(ptr, bytes_out_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200753
Willy Tarreau20d46a52012-12-09 15:55:40 +0100754 ptr = stktable_data_ptr(s->stkctr[i].table,
755 s->stkctr[i].entry,
756 STKTABLE_DT_BYTES_OUT_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200757 if (ptr)
758 update_freq_ctr_period(&stktable_data_cast(ptr, bytes_out_rate),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100759 s->stkctr[i].table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200760 }
Willy Tarreau30e71012007-11-26 20:15:35 +0100761 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100762 }
763}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200764
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100765/* This function is called with (si->state == SI_ST_CON) meaning that a
766 * connection was attempted and that the file descriptor is already allocated.
767 * We must check for establishment, error and abort. Possible output states
768 * are SI_ST_EST (established), SI_ST_CER (error), SI_ST_DIS (abort), and
769 * SI_ST_CON (no change). The function returns 0 if it switches to SI_ST_CER,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200770 * otherwise 1. This only works with connection-based sessions.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100771 */
Simon Hormandec5be42011-06-08 09:19:07 +0900772static int sess_update_st_con_tcp(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100773{
Willy Tarreau7421efb2012-07-02 15:11:27 +0200774 struct channel *req = si->ob;
775 struct channel *rep = si->ib;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200776 struct connection *srv_conn = __objt_conn(si->end);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100777
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100778 /* If we got an error, or if nothing happened and the connection timed
779 * out, we must give up. The CER state handler will take care of retry
780 * attempts and error reports.
781 */
782 if (unlikely(si->flags & (SI_FL_EXP|SI_FL_ERR))) {
Willy Tarreaue3224e82012-10-29 22:41:31 +0100783 if (unlikely(si->ob->flags & CF_WRITE_PARTIAL)) {
784 /* Some data were sent past the connection establishment,
785 * so we need to pretend we're established to log correctly
786 * and let later states handle the failure.
787 */
Willy Tarreaue3224e82012-10-29 22:41:31 +0100788 si->state = SI_ST_EST;
789 si->err_type = SI_ET_DATA_ERR;
790 si->ib->flags |= CF_READ_ERROR | CF_WRITE_ERROR;
Willy Tarreaue3224e82012-10-29 22:41:31 +0100791 return 1;
792 }
Willy Tarreau127334e2009-03-28 10:47:26 +0100793 si->exp = TICK_ETERNITY;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100794 si->state = SI_ST_CER;
Willy Tarreau0ede5a32012-12-08 08:44:02 +0100795
Willy Tarreauf79c8172013-10-21 16:30:56 +0200796 conn_force_close(srv_conn);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100797
798 if (si->err_type)
799 return 0;
800
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100801 if (si->flags & SI_FL_ERR)
802 si->err_type = SI_ET_CONN_ERR;
803 else
804 si->err_type = SI_ET_CONN_TO;
805 return 0;
806 }
807
808 /* OK, maybe we want to abort */
Willy Tarreaua7a7ebc2012-12-30 00:50:35 +0100809 if (!(req->flags & CF_WRITE_PARTIAL) &&
810 unlikely((rep->flags & CF_SHUTW) ||
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200811 ((req->flags & CF_SHUTW_NOW) && /* FIXME: this should not prevent a connection from establishing */
812 ((!(req->flags & CF_WRITE_ACTIVITY) && channel_is_empty(req)) ||
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100813 s->be->options & PR_O_ABRT_CLOSE)))) {
814 /* give up */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200815 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100816 si->err_type |= SI_ET_CONN_ABRT;
Willy Tarreau84455332009-03-15 22:34:05 +0100817 if (s->srv_error)
818 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100819 return 1;
820 }
821
822 /* we need to wait a bit more if there was no activity either */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200823 if (!(req->flags & CF_WRITE_ACTIVITY))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100824 return 1;
825
826 /* OK, this means that a connection succeeded. The caller will be
827 * responsible for handling the transition from CON to EST.
828 */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100829 si->state = SI_ST_EST;
830 si->err_type = SI_ET_NONE;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100831 return 1;
832}
833
834/* This function is called with (si->state == SI_ST_CER) meaning that a
835 * previous connection attempt has failed and that the file descriptor
836 * has already been released. Possible causes include asynchronous error
837 * notification and time out. Possible output states are SI_ST_CLO when
838 * retries are exhausted, SI_ST_TAR when a delay is wanted before a new
839 * connection attempt, SI_ST_ASS when it's wise to retry on the same server,
840 * and SI_ST_REQ when an immediate redispatch is wanted. The buffers are
841 * marked as in error state. It returns 0.
842 */
Simon Hormandec5be42011-06-08 09:19:07 +0900843static int sess_update_st_cer(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100844{
845 /* we probably have to release last session from the server */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100846 if (objt_server(s->target)) {
847 health_adjust(objt_server(s->target), HANA_STATUS_L4_ERR);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100848
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100849 if (s->flags & SN_CURR_SESS) {
850 s->flags &= ~SN_CURR_SESS;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100851 objt_server(s->target)->cur_sess--;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100852 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100853 }
854
855 /* ensure that we have enough retries left */
Willy Tarreauee28de02010-06-01 09:51:00 +0200856 si->conn_retries--;
857 if (si->conn_retries < 0) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100858 if (!si->err_type) {
859 si->err_type = SI_ET_CONN_ERR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100860 }
861
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100862 if (objt_server(s->target))
863 objt_server(s->target)->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100864 s->be->be_counters.failed_conns++;
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100865 sess_change_server(s, NULL);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100866 if (may_dequeue_tasks(objt_server(s->target), s->be))
867 process_srv_queue(objt_server(s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100868
869 /* shutw is enough so stop a connecting socket */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200870 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200871 si->ob->flags |= CF_WRITE_ERROR;
872 si->ib->flags |= CF_READ_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100873
874 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100875 if (s->srv_error)
876 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100877 return 0;
878 }
879
880 /* If the "redispatch" option is set on the backend, we are allowed to
881 * retry on another server for the last retry. In order to achieve this,
882 * we must mark the session unassigned, and eventually clear the DIRECT
883 * bit to ignore any persistence cookie. We won't count a retry nor a
884 * redispatch yet, because this will depend on what server is selected.
885 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100886 if (objt_server(s->target) && si->conn_retries == 0 &&
Willy Tarreau4de91492010-01-22 19:10:05 +0100887 s->be->options & PR_O_REDISP && !(s->flags & SN_FORCE_PRST)) {
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100888 sess_change_server(s, NULL);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100889 if (may_dequeue_tasks(objt_server(s->target), s->be))
890 process_srv_queue(objt_server(s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100891
892 s->flags &= ~(SN_DIRECT | SN_ASSIGNED | SN_ADDR_SET);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100893 si->state = SI_ST_REQ;
894 } else {
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100895 if (objt_server(s->target))
896 objt_server(s->target)->counters.retries++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100897 s->be->be_counters.retries++;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100898 si->state = SI_ST_ASS;
899 }
900
901 if (si->flags & SI_FL_ERR) {
902 /* The error was an asynchronous connection error, and we will
903 * likely have to retry connecting to the same server, most
904 * likely leading to the same result. To avoid this, we wait
905 * one second before retrying.
906 */
907
908 if (!si->err_type)
909 si->err_type = SI_ET_CONN_ERR;
910
911 si->state = SI_ST_TAR;
912 si->exp = tick_add(now_ms, MS_TO_TICKS(1000));
913 return 0;
914 }
915 return 0;
916}
917
918/*
919 * This function handles the transition between the SI_ST_CON state and the
Willy Tarreau85e7d002010-05-31 11:57:51 +0200920 * SI_ST_EST state. It must only be called after switching from SI_ST_CON (or
Willy Tarreau26d8c592012-05-07 18:12:14 +0200921 * SI_ST_INI) to SI_ST_EST, but only when a ->proto is defined.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100922 */
Simon Hormandec5be42011-06-08 09:19:07 +0900923static void sess_establish(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100924{
Willy Tarreau7421efb2012-07-02 15:11:27 +0200925 struct channel *req = si->ob;
926 struct channel *rep = si->ib;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100927
Willy Tarreau0e37f1c2013-12-31 23:06:46 +0100928 /* First, centralize the timers information */
929 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
930 si->exp = TICK_ETERNITY;
931
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100932 if (objt_server(s->target))
933 health_adjust(objt_server(s->target), HANA_STATUS_L4_OK);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100934
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100935 if (s->be->mode == PR_MODE_TCP) { /* let's allow immediate data connection in this case */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100936 /* if the user wants to log as soon as possible, without counting
937 * bytes from the server, then this is the right moment. */
Willy Tarreaud79a3b22012-12-28 09:40:16 +0100938 if (!LIST_ISEMPTY(&s->fe->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100939 s->logs.t_close = s->logs.t_connect; /* to get a valid end date */
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100940 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100941 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100942 }
943 else {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100944 s->txn.rsp.msg_state = HTTP_MSG_RPBEFORE;
Willy Tarreaud81ca042013-12-31 22:33:13 +0100945 rep->flags |= CF_READ_DONTWAIT; /* a single read is enough to get response headers */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100946 }
947
Willy Tarreau4e5b8282009-08-16 22:57:50 +0200948 rep->analysers |= s->fe->fe_rsp_ana | s->be->be_rsp_ana;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200949 rep->flags |= CF_READ_ATTACHED; /* producer is now attached */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200950 if (objt_conn(si->end)) {
Willy Tarreaud04e8582010-05-31 12:31:35 +0200951 /* real connections have timeouts */
952 req->wto = s->be->timeout.server;
953 rep->rto = s->be->timeout.server;
954 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100955 req->wex = TICK_ETERNITY;
956}
957
958/* Update stream interface status for input states SI_ST_ASS, SI_ST_QUE, SI_ST_TAR.
959 * Other input states are simply ignored.
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +0100960 * Possible output states are SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ, SI_ST_CON
961 * and SI_ST_EST. Flags must have previously been updated for timeouts and other
962 * conditions.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100963 */
Simon Hormandec5be42011-06-08 09:19:07 +0900964static void sess_update_stream_int(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100965{
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100966 struct server *srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +0100967
Willy Tarreau02d6cfc2012-03-01 18:19:58 +0100968 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 +0100969 now_ms, __FUNCTION__,
970 s,
971 s->req, s->rep,
972 s->req->rex, s->rep->wex,
973 s->req->flags, s->rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200974 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 +0100975
976 if (si->state == SI_ST_ASS) {
977 /* Server assigned to connection request, we have to try to connect now */
978 int conn_err;
979
980 conn_err = connect_server(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100981 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +0100982
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100983 if (conn_err == SN_ERR_NONE) {
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +0100984 /* state = SI_ST_CON or SI_ST_EST now */
Willy Tarreau827aee92011-03-10 16:55:02 +0100985 if (srv)
986 srv_inc_sess_ctr(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100987 return;
988 }
989
990 /* We have received a synchronous error. We might have to
991 * abort, retry immediately or redispatch.
992 */
993 if (conn_err == SN_ERR_INTERNAL) {
994 if (!si->err_type) {
995 si->err_type = SI_ET_CONN_OTHER;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100996 }
997
Willy Tarreau827aee92011-03-10 16:55:02 +0100998 if (srv)
999 srv_inc_sess_ctr(srv);
1000 if (srv)
1001 srv->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001002 s->be->be_counters.failed_conns++;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001003
1004 /* release other sessions waiting for this server */
Willy Tarreaub89cfca2010-12-29 14:32:28 +01001005 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001006 if (may_dequeue_tasks(srv, s->be))
1007 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001008
1009 /* Failed and not retryable. */
Willy Tarreau73b013b2012-05-21 16:31:45 +02001010 si_shutr(si);
1011 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001012 si->ob->flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001013
1014 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1015
1016 /* no session was ever accounted for this server */
1017 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001018 if (s->srv_error)
1019 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001020 return;
1021 }
1022
1023 /* We are facing a retryable error, but we don't want to run a
1024 * turn-around now, as the problem is likely a source port
1025 * allocation problem, so we want to retry now.
1026 */
1027 si->state = SI_ST_CER;
1028 si->flags &= ~SI_FL_ERR;
1029 sess_update_st_cer(s, si);
1030 /* now si->state is one of SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ */
1031 return;
1032 }
1033 else if (si->state == SI_ST_QUE) {
1034 /* connection request was queued, check for any update */
1035 if (!s->pend_pos) {
1036 /* The connection is not in the queue anymore. Either
1037 * we have a server connection slot available and we
1038 * go directly to the assigned state, or we need to
1039 * load-balance first and go to the INI state.
1040 */
1041 si->exp = TICK_ETERNITY;
1042 if (unlikely(!(s->flags & SN_ASSIGNED)))
1043 si->state = SI_ST_REQ;
1044 else {
1045 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1046 si->state = SI_ST_ASS;
1047 }
1048 return;
1049 }
1050
1051 /* Connection request still in queue... */
1052 if (si->flags & SI_FL_EXP) {
1053 /* ... and timeout expired */
1054 si->exp = TICK_ETERNITY;
1055 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau827aee92011-03-10 16:55:02 +01001056 if (srv)
1057 srv->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001058 s->be->be_counters.failed_conns++;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001059 si_shutr(si);
1060 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001061 si->ob->flags |= CF_WRITE_TIMEOUT;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001062 if (!si->err_type)
1063 si->err_type = SI_ET_QUEUE_TO;
1064 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001065 if (s->srv_error)
1066 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001067 return;
1068 }
1069
1070 /* Connection remains in queue, check if we have to abort it */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001071 if ((si->ob->flags & (CF_READ_ERROR)) ||
1072 ((si->ob->flags & CF_SHUTW_NOW) && /* empty and client aborted */
Willy Tarreau8e21bb92012-08-24 22:40:29 +02001073 (channel_is_empty(si->ob) || s->be->options & PR_O_ABRT_CLOSE))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001074 /* give up */
1075 si->exp = TICK_ETERNITY;
1076 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau73b013b2012-05-21 16:31:45 +02001077 si_shutr(si);
1078 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001079 si->err_type |= SI_ET_QUEUE_ABRT;
1080 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001081 if (s->srv_error)
1082 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001083 return;
1084 }
1085
1086 /* Nothing changed */
1087 return;
1088 }
1089 else if (si->state == SI_ST_TAR) {
1090 /* Connection request might be aborted */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001091 if ((si->ob->flags & (CF_READ_ERROR)) ||
1092 ((si->ob->flags & CF_SHUTW_NOW) && /* empty and client aborted */
Willy Tarreau8e21bb92012-08-24 22:40:29 +02001093 (channel_is_empty(si->ob) || s->be->options & PR_O_ABRT_CLOSE))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001094 /* give up */
1095 si->exp = TICK_ETERNITY;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001096 si_shutr(si);
1097 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001098 si->err_type |= SI_ET_CONN_ABRT;
1099 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001100 if (s->srv_error)
1101 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001102 return;
1103 }
1104
1105 if (!(si->flags & SI_FL_EXP))
1106 return; /* still in turn-around */
1107
1108 si->exp = TICK_ETERNITY;
1109
1110 /* we keep trying on the same server as long as the session is
1111 * marked "assigned".
1112 * FIXME: Should we force a redispatch attempt when the server is down ?
1113 */
1114 if (s->flags & SN_ASSIGNED)
1115 si->state = SI_ST_ASS;
1116 else
1117 si->state = SI_ST_REQ;
1118 return;
1119 }
1120}
1121
Simon Hormandec5be42011-06-08 09:19:07 +09001122/* Set correct session termination flags in case no analyser has done it. It
1123 * also counts a failed request if the server state has not reached the request
1124 * stage.
1125 */
1126static void sess_set_term_flags(struct session *s)
1127{
1128 if (!(s->flags & SN_FINST_MASK)) {
1129 if (s->si[1].state < SI_ST_REQ) {
1130
1131 s->fe->fe_counters.failed_req++;
1132 if (s->listener->counters)
1133 s->listener->counters->failed_req++;
1134
1135 s->flags |= SN_FINST_R;
1136 }
1137 else if (s->si[1].state == SI_ST_QUE)
1138 s->flags |= SN_FINST_Q;
1139 else if (s->si[1].state < SI_ST_EST)
1140 s->flags |= SN_FINST_C;
1141 else if (s->si[1].state == SI_ST_EST || s->si[1].prev_state == SI_ST_EST)
1142 s->flags |= SN_FINST_D;
1143 else
1144 s->flags |= SN_FINST_L;
1145 }
1146}
1147
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001148/* This function initiates a server connection request on a stream interface
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001149 * already in SI_ST_REQ state. Upon success, the state goes to SI_ST_ASS for
1150 * a real connection to a server, indicating that a server has been assigned,
1151 * or SI_ST_EST for a successful connection to an applet. It may also return
1152 * SI_ST_QUE, or SI_ST_CLO upon error.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001153 */
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001154static void sess_prepare_conn_req(struct session *s, struct stream_interface *si)
1155{
1156 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 +01001157 now_ms, __FUNCTION__,
1158 s,
1159 s->req, s->rep,
1160 s->req->rex, s->rep->wex,
1161 s->req->flags, s->rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001162 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 +01001163
1164 if (si->state != SI_ST_REQ)
1165 return;
1166
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001167 if (unlikely(obj_type(s->target) == OBJ_TYPE_APPLET)) {
1168 /* the applet directly goes to the EST state */
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001169 struct appctx *appctx = objt_appctx(si->end);
1170
1171 if (!appctx || appctx->applet != __objt_applet(s->target))
1172 appctx = stream_int_register_handler(si, objt_applet(s->target));
1173
1174 if (!appctx) {
1175 /* No more memory, let's immediately abort. Force the
1176 * error code to ignore the ERR_LOCAL which is not a
1177 * real error.
1178 */
Willy Tarreau6bbb2f62013-12-09 17:14:23 +01001179 s->flags &= ~(SN_ERR_MASK | SN_FINST_MASK);
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001180
1181 si_shutr(si);
1182 si_shutw(si);
1183 si->ob->flags |= CF_WRITE_ERROR;
Willy Tarreau6bbb2f62013-12-09 17:14:23 +01001184 si->err_type = SI_ET_CONN_RES;
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001185 si->state = SI_ST_CLO;
1186 if (s->srv_error)
1187 s->srv_error(s, si);
1188 return;
1189 }
1190
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001191 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001192 si->state = SI_ST_EST;
1193 si->err_type = SI_ET_NONE;
Willy Tarreaufac4bd12013-11-30 09:21:49 +01001194 /* let sess_establish() finish the job */
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001195 return;
1196 }
1197
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001198 /* Try to assign a server */
1199 if (srv_redispatch_connect(s) != 0) {
1200 /* We did not get a server. Either we queued the
1201 * connection request, or we encountered an error.
1202 */
1203 if (si->state == SI_ST_QUE)
1204 return;
1205
1206 /* we did not get any server, let's check the cause */
Willy Tarreau73b013b2012-05-21 16:31:45 +02001207 si_shutr(si);
1208 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001209 si->ob->flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001210 if (!si->err_type)
1211 si->err_type = SI_ET_CONN_OTHER;
1212 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001213 if (s->srv_error)
1214 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001215 return;
1216 }
1217
1218 /* The server is assigned */
1219 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1220 si->state = SI_ST_ASS;
1221}
1222
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001223/* This stream analyser checks the switching rules and changes the backend
Willy Tarreau4de91492010-01-22 19:10:05 +01001224 * if appropriate. The default_backend rule is also considered, then the
1225 * target backend's forced persistence rules are also evaluated last if any.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001226 * It returns 1 if the processing can continue on next analysers, or zero if it
1227 * either needs more data or wants to immediately abort the request.
1228 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001229static int process_switching_rules(struct session *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001230{
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001231 struct persist_rule *prst_rule;
Willy Tarreau4de91492010-01-22 19:10:05 +01001232
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001233 req->analysers &= ~an_bit;
1234 req->analyse_exp = TICK_ETERNITY;
1235
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001236 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 +02001237 now_ms, __FUNCTION__,
1238 s,
1239 req,
1240 req->rex, req->wex,
1241 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001242 req->buf->i,
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001243 req->analysers);
1244
1245 /* now check whether we have some switching rules for this request */
1246 if (!(s->flags & SN_BE_ASSIGNED)) {
1247 struct switching_rule *rule;
1248
1249 list_for_each_entry(rule, &s->fe->switching_rules, list) {
1250 int ret;
1251
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001252 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 +02001253 ret = acl_pass(ret);
1254 if (rule->cond->pol == ACL_COND_UNLESS)
1255 ret = !ret;
1256
1257 if (ret) {
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001258 if (!session_set_backend(s, rule->be.backend))
1259 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001260 break;
1261 }
1262 }
1263
1264 /* To ensure correct connection accounting on the backend, we
1265 * have to assign one if it was not set (eg: a listen). This
1266 * measure also takes care of correctly setting the default
1267 * backend if any.
1268 */
1269 if (!(s->flags & SN_BE_ASSIGNED))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001270 if (!session_set_backend(s, s->fe->defbe.be ? s->fe->defbe.be : s->be))
1271 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001272 }
1273
Willy Tarreaufb356202010-08-03 14:02:05 +02001274 /* we don't want to run the TCP or HTTP filters again if the backend has not changed */
1275 if (s->fe == s->be) {
1276 s->req->analysers &= ~AN_REQ_INSPECT_BE;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001277 s->req->analysers &= ~AN_REQ_HTTP_PROCESS_BE;
Willy Tarreaufb356202010-08-03 14:02:05 +02001278 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001279
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001280 /* 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 +01001281 * persistence rule, and report that in the session.
1282 */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001283 list_for_each_entry(prst_rule, &s->be->persist_rules, list) {
Willy Tarreau4de91492010-01-22 19:10:05 +01001284 int ret = 1;
1285
1286 if (prst_rule->cond) {
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001287 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 +01001288 ret = acl_pass(ret);
1289 if (prst_rule->cond->pol == ACL_COND_UNLESS)
1290 ret = !ret;
1291 }
1292
1293 if (ret) {
1294 /* no rule, or the rule matches */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001295 if (prst_rule->type == PERSIST_TYPE_FORCE) {
1296 s->flags |= SN_FORCE_PRST;
1297 } else {
1298 s->flags |= SN_IGNORE_PRST;
1299 }
Willy Tarreau4de91492010-01-22 19:10:05 +01001300 break;
1301 }
1302 }
1303
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001304 return 1;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001305
1306 sw_failed:
1307 /* immediately abort this request in case of allocation failure */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001308 channel_abort(s->req);
1309 channel_abort(s->rep);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001310
1311 if (!(s->flags & SN_ERR_MASK))
1312 s->flags |= SN_ERR_RESOURCE;
1313 if (!(s->flags & SN_FINST_MASK))
1314 s->flags |= SN_FINST_R;
1315
1316 s->txn.status = 500;
1317 s->req->analysers = 0;
1318 s->req->analyse_exp = TICK_ETERNITY;
1319 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001320}
1321
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001322/* This stream analyser works on a request. It applies all use-server rules on
1323 * it then returns 1. The data must already be present in the buffer otherwise
1324 * they won't match. It always returns 1.
1325 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001326static int process_server_rules(struct session *s, struct channel *req, int an_bit)
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001327{
1328 struct proxy *px = s->be;
1329 struct server_rule *rule;
1330
1331 DPRINTF(stderr,"[%u] %s: session=%p b=%p, exp(r,w)=%u,%u bf=%08x bl=%d analysers=%02x\n",
1332 now_ms, __FUNCTION__,
1333 s,
1334 req,
1335 req->rex, req->wex,
1336 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001337 req->buf->i + req->buf->o,
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001338 req->analysers);
1339
1340 if (!(s->flags & SN_ASSIGNED)) {
1341 list_for_each_entry(rule, &px->server_rules, list) {
1342 int ret;
1343
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001344 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 +02001345 ret = acl_pass(ret);
1346 if (rule->cond->pol == ACL_COND_UNLESS)
1347 ret = !ret;
1348
1349 if (ret) {
1350 struct server *srv = rule->srv.ptr;
1351
1352 if ((srv->state & SRV_RUNNING) ||
1353 (px->options & PR_O_PERSIST) ||
1354 (s->flags & SN_FORCE_PRST)) {
1355 s->flags |= SN_DIRECT | SN_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001356 s->target = &srv->obj_type;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001357 break;
1358 }
1359 /* if the server is not UP, let's go on with next rules
1360 * just in case another one is suited.
1361 */
1362 }
1363 }
1364 }
1365
1366 req->analysers &= ~an_bit;
1367 req->analyse_exp = TICK_ETERNITY;
1368 return 1;
1369}
1370
Emeric Brun1d33b292010-01-04 15:47:17 +01001371/* This stream analyser works on a request. It applies all sticking rules on
1372 * it then returns 1. The data must already be present in the buffer otherwise
1373 * they won't match. It always returns 1.
1374 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001375static int process_sticking_rules(struct session *s, struct channel *req, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001376{
1377 struct proxy *px = s->be;
1378 struct sticking_rule *rule;
1379
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001380 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 +01001381 now_ms, __FUNCTION__,
1382 s,
1383 req,
1384 req->rex, req->wex,
1385 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001386 req->buf->i,
Emeric Brun1d33b292010-01-04 15:47:17 +01001387 req->analysers);
1388
1389 list_for_each_entry(rule, &px->sticking_rules, list) {
1390 int ret = 1 ;
1391 int i;
1392
Willy Tarreau9667a802013-12-09 12:52:13 +01001393 /* Only the first stick store-request of each table is applied
1394 * and other ones are ignored. The purpose is to allow complex
1395 * configurations which look for multiple entries by decreasing
1396 * order of precision and to stop at the first which matches.
1397 * An example could be a store of the IP address from an HTTP
1398 * header first, then from the source if not found.
1399 */
Emeric Brun1d33b292010-01-04 15:47:17 +01001400 for (i = 0; i < s->store_count; i++) {
1401 if (rule->table.t == s->store[i].table)
1402 break;
1403 }
1404
1405 if (i != s->store_count)
1406 continue;
1407
1408 if (rule->cond) {
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001409 ret = acl_exec_cond(rule->cond, px, s, &s->txn, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001410 ret = acl_pass(ret);
1411 if (rule->cond->pol == ACL_COND_UNLESS)
1412 ret = !ret;
1413 }
1414
1415 if (ret) {
1416 struct stktable_key *key;
1417
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001418 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 +01001419 if (!key)
1420 continue;
1421
1422 if (rule->flags & STK_IS_MATCH) {
1423 struct stksess *ts;
1424
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001425 if ((ts = stktable_lookup_key(rule->table.t, key)) != NULL) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001426 if (!(s->flags & SN_ASSIGNED)) {
1427 struct eb32_node *node;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001428 void *ptr;
Emeric Brun1d33b292010-01-04 15:47:17 +01001429
1430 /* srv found in table */
Willy Tarreau13c29de2010-06-06 16:40:39 +02001431 ptr = stktable_data_ptr(rule->table.t, ts, STKTABLE_DT_SERVER_ID);
1432 node = eb32_lookup(&px->conf.used_server_id, stktable_data_cast(ptr, server_id));
Emeric Brun1d33b292010-01-04 15:47:17 +01001433 if (node) {
1434 struct server *srv;
1435
1436 srv = container_of(node, struct server, conf.id);
Willy Tarreau4de91492010-01-22 19:10:05 +01001437 if ((srv->state & SRV_RUNNING) ||
1438 (px->options & PR_O_PERSIST) ||
1439 (s->flags & SN_FORCE_PRST)) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001440 s->flags |= SN_DIRECT | SN_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001441 s->target = &srv->obj_type;
Emeric Brun1d33b292010-01-04 15:47:17 +01001442 }
1443 }
1444 }
Emeric Brun85e77c72010-09-23 18:16:52 +02001445 stktable_touch(rule->table.t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001446 }
1447 }
1448 if (rule->flags & STK_IS_STORE) {
1449 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
1450 struct stksess *ts;
1451
1452 ts = stksess_new(rule->table.t, key);
1453 if (ts) {
1454 s->store[s->store_count].table = rule->table.t;
1455 s->store[s->store_count++].ts = ts;
1456 }
1457 }
1458 }
1459 }
1460 }
1461
1462 req->analysers &= ~an_bit;
1463 req->analyse_exp = TICK_ETERNITY;
1464 return 1;
1465}
1466
1467/* This stream analyser works on a response. It applies all store rules on it
1468 * then returns 1. The data must already be present in the buffer otherwise
1469 * they won't match. It always returns 1.
1470 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001471static int process_store_rules(struct session *s, struct channel *rep, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001472{
1473 struct proxy *px = s->be;
1474 struct sticking_rule *rule;
1475 int i;
Willy Tarreau9667a802013-12-09 12:52:13 +01001476 int nbreq = s->store_count;
Emeric Brun1d33b292010-01-04 15:47:17 +01001477
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001478 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 +01001479 now_ms, __FUNCTION__,
1480 s,
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001481 rep,
1482 rep->rex, rep->wex,
1483 rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001484 rep->buf->i,
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001485 rep->analysers);
Emeric Brun1d33b292010-01-04 15:47:17 +01001486
1487 list_for_each_entry(rule, &px->storersp_rules, list) {
1488 int ret = 1 ;
Emeric Brun1d33b292010-01-04 15:47:17 +01001489
Willy Tarreau9667a802013-12-09 12:52:13 +01001490 /* Only the first stick store-response of each table is applied
1491 * and other ones are ignored. The purpose is to allow complex
1492 * configurations which look for multiple entries by decreasing
1493 * order of precision and to stop at the first which matches.
1494 * An example could be a store of a set-cookie value, with a
1495 * fallback to a parameter found in a 302 redirect.
1496 *
1497 * The store-response rules are not allowed to override the
1498 * store-request rules for the same table, but they may coexist.
1499 * Thus we can have up to one store-request entry and one store-
1500 * response entry for the same table at any time.
1501 */
1502 for (i = nbreq; i < s->store_count; i++) {
1503 if (rule->table.t == s->store[i].table)
1504 break;
1505 }
1506
1507 /* skip existing entries for this table */
1508 if (i < s->store_count)
1509 continue;
1510
Emeric Brun1d33b292010-01-04 15:47:17 +01001511 if (rule->cond) {
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001512 ret = acl_exec_cond(rule->cond, px, s, &s->txn, SMP_OPT_DIR_RES|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001513 ret = acl_pass(ret);
1514 if (rule->cond->pol == ACL_COND_UNLESS)
1515 ret = !ret;
1516 }
1517
1518 if (ret) {
1519 struct stktable_key *key;
1520
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001521 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 +01001522 if (!key)
1523 continue;
1524
Willy Tarreau37e340c2013-12-06 23:05:21 +01001525 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001526 struct stksess *ts;
1527
1528 ts = stksess_new(rule->table.t, key);
1529 if (ts) {
1530 s->store[s->store_count].table = rule->table.t;
Emeric Brun1d33b292010-01-04 15:47:17 +01001531 s->store[s->store_count++].ts = ts;
1532 }
1533 }
1534 }
1535 }
1536
1537 /* process store request and store response */
1538 for (i = 0; i < s->store_count; i++) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001539 struct stksess *ts;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001540 void *ptr;
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001541
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001542 if (objt_server(s->target) && objt_server(s->target)->state & SRV_NON_STICK) {
Simon Hormanfa461682011-06-25 09:39:49 +09001543 stksess_free(s->store[i].table, s->store[i].ts);
1544 s->store[i].ts = NULL;
1545 continue;
1546 }
1547
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001548 ts = stktable_lookup(s->store[i].table, s->store[i].ts);
1549 if (ts) {
1550 /* the entry already existed, we can free ours */
Emeric Brun85e77c72010-09-23 18:16:52 +02001551 stktable_touch(s->store[i].table, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001552 stksess_free(s->store[i].table, s->store[i].ts);
Emeric Brun1d33b292010-01-04 15:47:17 +01001553 }
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001554 else
Emeric Brun85e77c72010-09-23 18:16:52 +02001555 ts = stktable_store(s->store[i].table, s->store[i].ts, 1);
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001556
1557 s->store[i].ts = NULL;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001558 ptr = stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_ID);
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001559 stktable_data_cast(ptr, server_id) = objt_server(s->target)->puid;
Emeric Brun1d33b292010-01-04 15:47:17 +01001560 }
Willy Tarreau2a164ee2010-06-18 09:57:45 +02001561 s->store_count = 0; /* everything is stored */
Emeric Brun1d33b292010-01-04 15:47:17 +01001562
1563 rep->analysers &= ~an_bit;
1564 rep->analyse_exp = TICK_ETERNITY;
1565 return 1;
1566}
1567
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001568/* This macro is very specific to the function below. See the comments in
1569 * process_session() below to understand the logic and the tests.
1570 */
1571#define UPDATE_ANALYSERS(real, list, back, flag) { \
1572 list = (((list) & ~(flag)) | ~(back)) & (real); \
1573 back = real; \
1574 if (!(list)) \
1575 break; \
1576 if (((list) ^ ((list) & ((list) - 1))) < (flag)) \
1577 continue; \
1578}
1579
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001580/* Processes the client, server, request and response jobs of a session task,
1581 * then puts it back to the wait queue in a clean state, or cleans up its
1582 * resources if it must be deleted. Returns in <next> the date the task wants
1583 * to be woken up, or TICK_ETERNITY. In order not to call all functions for
1584 * nothing too many times, the request and response buffers flags are monitored
1585 * and each function is called only if at least another function has changed at
1586 * least one flag it is interested in.
1587 */
Willy Tarreau26c25062009-03-08 09:38:41 +01001588struct task *process_session(struct task *t)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001589{
Willy Tarreau827aee92011-03-10 16:55:02 +01001590 struct server *srv;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001591 struct session *s = t->context;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001592 unsigned int rqf_last, rpf_last;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001593 unsigned int rq_prod_last, rq_cons_last;
1594 unsigned int rp_cons_last, rp_prod_last;
Willy Tarreau576507f2010-01-07 00:09:04 +01001595 unsigned int req_ana_back;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001596
1597 //DPRINTF(stderr, "%s:%d: cs=%d ss=%d(%d) rqf=0x%08x rpf=0x%08x\n", __FUNCTION__, __LINE__,
1598 // s->si[0].state, s->si[1].state, s->si[1].err_type, s->req->flags, s->rep->flags);
1599
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001600 /* this data may be no longer valid, clear it */
1601 memset(&s->txn.auth, 0, sizeof(s->txn.auth));
1602
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001603 /* This flag must explicitly be set every time */
Willy Tarreaud7ad9f52013-12-31 17:26:25 +01001604 s->req->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
1605 s->rep->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001606
1607 /* Keep a copy of req/rep flags so that we can detect shutdowns */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001608 rqf_last = s->req->flags & ~CF_MASK_ANALYSER;
1609 rpf_last = s->rep->flags & ~CF_MASK_ANALYSER;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001610
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001611 /* we don't want the stream interface functions to recursively wake us up */
1612 if (s->req->prod->owner == t)
1613 s->req->prod->flags |= SI_FL_DONT_WAKE;
1614 if (s->req->cons->owner == t)
1615 s->req->cons->flags |= SI_FL_DONT_WAKE;
1616
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001617 /* 1a: Check for low level timeouts if needed. We just set a flag on
1618 * stream interfaces when their timeouts have expired.
1619 */
1620 if (unlikely(t->state & TASK_WOKEN_TIMER)) {
1621 stream_int_check_timeouts(&s->si[0]);
1622 stream_int_check_timeouts(&s->si[1]);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001623
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001624 /* check channel timeouts, and close the corresponding stream interfaces
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001625 * for future reads or writes. Note: this will also concern upper layers
1626 * but we do not touch any other flag. We must be careful and correctly
1627 * detect state changes when calling them.
1628 */
1629
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001630 channel_check_timeouts(s->req);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001631
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001632 if (unlikely((s->req->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
Willy Tarreau14641402009-12-29 14:49:56 +01001633 s->req->cons->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001634 si_shutw(s->req->cons);
Willy Tarreau14641402009-12-29 14:49:56 +01001635 }
1636
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001637 if (unlikely((s->req->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001638 if (s->req->prod->flags & SI_FL_NOHALF)
1639 s->req->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001640 si_shutr(s->req->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001641 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001642
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001643 channel_check_timeouts(s->rep);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001644
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001645 if (unlikely((s->rep->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
Willy Tarreau14641402009-12-29 14:49:56 +01001646 s->rep->cons->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001647 si_shutw(s->rep->cons);
Willy Tarreau14641402009-12-29 14:49:56 +01001648 }
1649
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001650 if (unlikely((s->rep->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001651 if (s->rep->prod->flags & SI_FL_NOHALF)
1652 s->rep->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001653 si_shutr(s->rep->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001654 }
Willy Tarreau798f4322012-11-08 14:49:17 +01001655
1656 /* Once in a while we're woken up because the task expires. But
1657 * this does not necessarily mean that a timeout has been reached.
1658 * So let's not run a whole session processing if only an expiration
1659 * timeout needs to be refreshed.
1660 */
1661 if (!((s->req->flags | s->rep->flags) &
1662 (CF_SHUTR|CF_READ_ACTIVITY|CF_READ_TIMEOUT|CF_SHUTW|
1663 CF_WRITE_ACTIVITY|CF_WRITE_TIMEOUT|CF_ANA_TIMEOUT)) &&
1664 !((s->si[0].flags | s->si[1].flags) & (SI_FL_EXP|SI_FL_ERR)) &&
1665 ((t->state & TASK_WOKEN_ANY) == TASK_WOKEN_TIMER))
1666 goto update_exp_and_leave;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001667 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001668
1669 /* 1b: check for low-level errors reported at the stream interface.
1670 * First we check if it's a retryable error (in which case we don't
1671 * want to tell the buffer). Otherwise we report the error one level
1672 * upper by setting flags into the buffers. Note that the side towards
1673 * the client cannot have connect (hence retryable) errors. Also, the
1674 * connection setup code must be able to deal with any type of abort.
1675 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001676 srv = objt_server(s->target);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001677 if (unlikely(s->si[0].flags & SI_FL_ERR)) {
1678 if (s->si[0].state == SI_ST_EST || s->si[0].state == SI_ST_DIS) {
Willy Tarreau73b013b2012-05-21 16:31:45 +02001679 si_shutr(&s->si[0]);
1680 si_shutw(&s->si[0]);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001681 stream_int_report_error(&s->si[0]);
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001682 if (!(s->req->analysers) && !(s->rep->analysers)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001683 s->be->be_counters.cli_aborts++;
1684 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001685 if (srv)
1686 srv->counters.cli_aborts++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001687 if (!(s->flags & SN_ERR_MASK))
1688 s->flags |= SN_ERR_CLICL;
1689 if (!(s->flags & SN_FINST_MASK))
1690 s->flags |= SN_FINST_D;
1691 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001692 }
1693 }
1694
1695 if (unlikely(s->si[1].flags & SI_FL_ERR)) {
1696 if (s->si[1].state == SI_ST_EST || s->si[1].state == SI_ST_DIS) {
Willy Tarreau73b013b2012-05-21 16:31:45 +02001697 si_shutr(&s->si[1]);
1698 si_shutw(&s->si[1]);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001699 stream_int_report_error(&s->si[1]);
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001700 s->be->be_counters.failed_resp++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001701 if (srv)
1702 srv->counters.failed_resp++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001703 if (!(s->req->analysers) && !(s->rep->analysers)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001704 s->be->be_counters.srv_aborts++;
1705 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001706 if (srv)
1707 srv->counters.srv_aborts++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001708 if (!(s->flags & SN_ERR_MASK))
1709 s->flags |= SN_ERR_SRVCL;
1710 if (!(s->flags & SN_FINST_MASK))
1711 s->flags |= SN_FINST_D;
1712 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001713 }
1714 /* note: maybe we should process connection errors here ? */
1715 }
1716
1717 if (s->si[1].state == SI_ST_CON) {
1718 /* we were trying to establish a connection on the server side,
1719 * maybe it succeeded, maybe it failed, maybe we timed out, ...
1720 */
1721 if (unlikely(!sess_update_st_con_tcp(s, &s->si[1])))
1722 sess_update_st_cer(s, &s->si[1]);
1723 else if (s->si[1].state == SI_ST_EST)
1724 sess_establish(s, &s->si[1]);
1725
1726 /* state is now one of SI_ST_CON (still in progress), SI_ST_EST
1727 * (established), SI_ST_DIS (abort), SI_ST_CLO (last error),
1728 * SI_ST_ASS/SI_ST_TAR/SI_ST_REQ for retryable errors.
1729 */
1730 }
1731
Willy Tarreau815a9b22010-07-27 17:15:12 +02001732 rq_prod_last = s->si[0].state;
1733 rq_cons_last = s->si[1].state;
1734 rp_cons_last = s->si[0].state;
1735 rp_prod_last = s->si[1].state;
1736
1737 resync_stream_interface:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001738 /* Check for connection closure */
1739
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001740 DPRINTF(stderr,
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001741 "[%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 +01001742 now_ms, __FUNCTION__, __LINE__,
1743 t,
1744 s, s->flags,
1745 s->req, s->rep,
1746 s->req->rex, s->rep->wex,
1747 s->req->flags, s->rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001748 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 +01001749 s->rep->cons->err_type, s->req->cons->err_type,
Willy Tarreauee28de02010-06-01 09:51:00 +02001750 s->req->cons->conn_retries);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001751
1752 /* nothing special to be done on client side */
1753 if (unlikely(s->req->prod->state == SI_ST_DIS))
1754 s->req->prod->state = SI_ST_CLO;
1755
1756 /* When a server-side connection is released, we have to count it and
1757 * check for pending connections on this server.
1758 */
1759 if (unlikely(s->req->cons->state == SI_ST_DIS)) {
1760 s->req->cons->state = SI_ST_CLO;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001761 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01001762 if (srv) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001763 if (s->flags & SN_CURR_SESS) {
1764 s->flags &= ~SN_CURR_SESS;
Willy Tarreau827aee92011-03-10 16:55:02 +01001765 srv->cur_sess--;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001766 }
1767 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001768 if (may_dequeue_tasks(srv, s->be))
1769 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001770 }
1771 }
1772
1773 /*
1774 * Note: of the transient states (REQ, CER, DIS), only REQ may remain
1775 * at this point.
1776 */
1777
Willy Tarreau0be0ef92009-03-08 19:20:25 +01001778 resync_request:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001779 /* Analyse request */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001780 if (((s->req->flags & ~rqf_last) & CF_MASK_ANALYSER) ||
1781 ((s->req->flags ^ rqf_last) & CF_MASK_STATIC) ||
Willy Tarreau815a9b22010-07-27 17:15:12 +02001782 s->si[0].state != rq_prod_last ||
1783 s->si[1].state != rq_cons_last) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001784 unsigned int flags = s->req->flags;
1785
1786 if (s->req->prod->state >= SI_ST_EST) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001787 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001788 unsigned int ana_list;
1789 unsigned int ana_back;
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001790
Willy Tarreau90deb182010-01-07 00:20:41 +01001791 /* it's up to the analysers to stop new connections,
1792 * disable reading or closing. Note: if an analyser
1793 * disables any of these bits, it is responsible for
1794 * enabling them again when it disables itself, so
1795 * that other analysers are called in similar conditions.
1796 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001797 channel_auto_read(s->req);
1798 channel_auto_connect(s->req);
1799 channel_auto_close(s->req);
Willy Tarreauedcf6682008-11-30 23:15:34 +01001800
1801 /* We will call all analysers for which a bit is set in
1802 * s->req->analysers, following the bit order from LSB
1803 * to MSB. The analysers must remove themselves from
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001804 * the list when not needed. Any analyser may return 0
1805 * to break out of the loop, either because of missing
1806 * data to take a decision, or because it decides to
1807 * kill the session. We loop at least once through each
1808 * analyser, and we may loop again if other analysers
1809 * are added in the middle.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001810 *
1811 * We build a list of analysers to run. We evaluate all
1812 * of these analysers in the order of the lower bit to
1813 * the higher bit. This ordering is very important.
1814 * An analyser will often add/remove other analysers,
1815 * including itself. Any changes to itself have no effect
1816 * on the loop. If it removes any other analysers, we
1817 * want those analysers not to be called anymore during
1818 * this loop. If it adds an analyser that is located
1819 * after itself, we want it to be scheduled for being
1820 * processed during the loop. If it adds an analyser
1821 * which is located before it, we want it to switch to
1822 * it immediately, even if it has already been called
1823 * once but removed since.
1824 *
1825 * In order to achieve this, we compare the analyser
1826 * list after the call with a copy of it before the
1827 * call. The work list is fed with analyser bits that
1828 * appeared during the call. Then we compare previous
1829 * work list with the new one, and check the bits that
1830 * appeared. If the lowest of these bits is lower than
1831 * the current bit, it means we have enabled a previous
1832 * analyser and must immediately loop again.
Willy Tarreauedcf6682008-11-30 23:15:34 +01001833 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001834
1835 ana_list = ana_back = s->req->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001836 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001837 /* Warning! ensure that analysers are always placed in ascending order! */
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001838
Willy Tarreaufb356202010-08-03 14:02:05 +02001839 if (ana_list & AN_REQ_INSPECT_FE) {
1840 if (!tcp_inspect_request(s, s->req, AN_REQ_INSPECT_FE))
Willy Tarreauedcf6682008-11-30 23:15:34 +01001841 break;
Willy Tarreaufb356202010-08-03 14:02:05 +02001842 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_INSPECT_FE);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001843 }
Willy Tarreauedcf6682008-11-30 23:15:34 +01001844
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001845 if (ana_list & AN_REQ_WAIT_HTTP) {
Willy Tarreau3a816292009-07-07 10:55:49 +02001846 if (!http_wait_for_request(s, s->req, AN_REQ_WAIT_HTTP))
Willy Tarreaud787e662009-07-07 10:14:51 +02001847 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001848 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_WAIT_HTTP);
Willy Tarreaud787e662009-07-07 10:14:51 +02001849 }
1850
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001851 if (ana_list & AN_REQ_HTTP_PROCESS_FE) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001852 if (!http_process_req_common(s, s->req, AN_REQ_HTTP_PROCESS_FE, s->fe))
1853 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001854 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_PROCESS_FE);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001855 }
1856
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001857 if (ana_list & AN_REQ_SWITCHING_RULES) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001858 if (!process_switching_rules(s, s->req, AN_REQ_SWITCHING_RULES))
1859 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001860 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_SWITCHING_RULES);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001861 }
1862
Willy Tarreaufb356202010-08-03 14:02:05 +02001863 if (ana_list & AN_REQ_INSPECT_BE) {
1864 if (!tcp_inspect_request(s, s->req, AN_REQ_INSPECT_BE))
1865 break;
1866 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_INSPECT_BE);
1867 }
1868
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001869 if (ana_list & AN_REQ_HTTP_PROCESS_BE) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001870 if (!http_process_req_common(s, s->req, AN_REQ_HTTP_PROCESS_BE, s->be))
1871 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001872 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_PROCESS_BE);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001873 }
1874
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001875 if (ana_list & AN_REQ_HTTP_TARPIT) {
Willy Tarreau3a816292009-07-07 10:55:49 +02001876 if (!http_process_tarpit(s, s->req, AN_REQ_HTTP_TARPIT))
Willy Tarreau60b85b02008-11-30 23:28:40 +01001877 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001878 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_TARPIT);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001879 }
Willy Tarreau60b85b02008-11-30 23:28:40 +01001880
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001881 if (ana_list & AN_REQ_SRV_RULES) {
1882 if (!process_server_rules(s, s->req, AN_REQ_SRV_RULES))
1883 break;
1884 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_SRV_RULES);
1885 }
1886
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001887 if (ana_list & AN_REQ_HTTP_INNER) {
Willy Tarreauc465fd72009-08-31 00:17:18 +02001888 if (!http_process_request(s, s->req, AN_REQ_HTTP_INNER))
1889 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001890 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_INNER);
Willy Tarreauc465fd72009-08-31 00:17:18 +02001891 }
1892
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001893 if (ana_list & AN_REQ_HTTP_BODY) {
Willy Tarreau3a816292009-07-07 10:55:49 +02001894 if (!http_process_request_body(s, s->req, AN_REQ_HTTP_BODY))
Willy Tarreaud34af782008-11-30 23:36:37 +01001895 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001896 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_BODY);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001897 }
Emeric Brun647caf12009-06-30 17:57:00 +02001898
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001899 if (ana_list & AN_REQ_PRST_RDP_COOKIE) {
Emeric Brun647caf12009-06-30 17:57:00 +02001900 if (!tcp_persist_rdp_cookie(s, s->req, AN_REQ_PRST_RDP_COOKIE))
1901 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001902 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_PRST_RDP_COOKIE);
Emeric Brun647caf12009-06-30 17:57:00 +02001903 }
Willy Tarreaud98cf932009-12-27 22:54:55 +01001904
Emeric Brun1d33b292010-01-04 15:47:17 +01001905 if (ana_list & AN_REQ_STICKING_RULES) {
1906 if (!process_sticking_rules(s, s->req, AN_REQ_STICKING_RULES))
1907 break;
1908 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_STICKING_RULES);
1909 }
1910
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001911 if (ana_list & AN_REQ_HTTP_XFER_BODY) {
Willy Tarreaud98cf932009-12-27 22:54:55 +01001912 if (!http_request_forward_body(s, s->req, AN_REQ_HTTP_XFER_BODY))
1913 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001914 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_XFER_BODY);
Willy Tarreaud98cf932009-12-27 22:54:55 +01001915 }
Willy Tarreaue34070e2010-01-08 00:32:27 +01001916 break;
1917 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001918 }
Willy Tarreau84455332009-03-15 22:34:05 +01001919
Willy Tarreau815a9b22010-07-27 17:15:12 +02001920 rq_prod_last = s->si[0].state;
1921 rq_cons_last = s->si[1].state;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001922 s->req->flags &= ~CF_WAKE_ONCE;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001923 rqf_last = s->req->flags;
1924
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001925 if ((s->req->flags ^ flags) & CF_MASK_STATIC)
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001926 goto resync_request;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001927 }
1928
Willy Tarreau576507f2010-01-07 00:09:04 +01001929 /* we'll monitor the request analysers while parsing the response,
1930 * because some response analysers may indirectly enable new request
1931 * analysers (eg: HTTP keep-alive).
1932 */
1933 req_ana_back = s->req->analysers;
1934
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001935 resync_response:
1936 /* Analyse response */
1937
Willy Tarreaub31c9712012-11-11 23:05:39 +01001938 if (((s->rep->flags & ~rpf_last) & CF_MASK_ANALYSER) ||
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001939 (s->rep->flags ^ rpf_last) & CF_MASK_STATIC ||
Willy Tarreau815a9b22010-07-27 17:15:12 +02001940 s->si[0].state != rp_cons_last ||
1941 s->si[1].state != rp_prod_last) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001942 unsigned int flags = s->rep->flags;
1943
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001944 if ((s->rep->flags & CF_MASK_ANALYSER) &&
Willy Tarreau0499e352010-12-17 07:13:42 +01001945 (s->rep->analysers & AN_REQ_WAIT_HTTP)) {
1946 /* Due to HTTP pipelining, the HTTP request analyser might be waiting
1947 * for some free space in the response buffer, so we might need to call
1948 * it when something changes in the response buffer, but still we pass
1949 * it the request buffer. Note that the SI state might very well still
1950 * be zero due to us returning a flow of redirects!
1951 */
1952 s->rep->analysers &= ~AN_REQ_WAIT_HTTP;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001953 s->req->flags |= CF_WAKE_ONCE;
Willy Tarreau0499e352010-12-17 07:13:42 +01001954 }
1955
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001956 if (s->rep->prod->state >= SI_ST_EST) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001957 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001958 unsigned int ana_list;
1959 unsigned int ana_back;
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001960
Willy Tarreau90deb182010-01-07 00:20:41 +01001961 /* it's up to the analysers to stop disable reading or
1962 * closing. Note: if an analyser disables any of these
1963 * bits, it is responsible for enabling them again when
1964 * it disables itself, so that other analysers are called
1965 * in similar conditions.
1966 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001967 channel_auto_read(s->rep);
1968 channel_auto_close(s->rep);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001969
1970 /* We will call all analysers for which a bit is set in
1971 * s->rep->analysers, following the bit order from LSB
1972 * to MSB. The analysers must remove themselves from
1973 * the list when not needed. Any analyser may return 0
1974 * to break out of the loop, either because of missing
1975 * data to take a decision, or because it decides to
1976 * kill the session. We loop at least once through each
1977 * analyser, and we may loop again if other analysers
1978 * are added in the middle.
1979 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001980
1981 ana_list = ana_back = s->rep->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001982 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001983 /* Warning! ensure that analysers are always placed in ascending order! */
1984
Emeric Brun97679e72010-09-23 17:56:44 +02001985 if (ana_list & AN_RES_INSPECT) {
1986 if (!tcp_inspect_response(s, s->rep, AN_RES_INSPECT))
1987 break;
1988 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_INSPECT);
1989 }
1990
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001991 if (ana_list & AN_RES_WAIT_HTTP) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001992 if (!http_wait_for_response(s, s->rep, AN_RES_WAIT_HTTP))
1993 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001994 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_WAIT_HTTP);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001995 }
1996
Emeric Brun1d33b292010-01-04 15:47:17 +01001997 if (ana_list & AN_RES_STORE_RULES) {
1998 if (!process_store_rules(s, s->rep, AN_RES_STORE_RULES))
1999 break;
2000 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_STORE_RULES);
2001 }
2002
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002003 if (ana_list & AN_RES_HTTP_PROCESS_BE) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002004 if (!http_process_res_common(s, s->rep, AN_RES_HTTP_PROCESS_BE, s->be))
2005 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002006 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_HTTP_PROCESS_BE);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002007 }
Willy Tarreaud98cf932009-12-27 22:54:55 +01002008
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002009 if (ana_list & AN_RES_HTTP_XFER_BODY) {
Willy Tarreaud98cf932009-12-27 22:54:55 +01002010 if (!http_response_forward_body(s, s->rep, AN_RES_HTTP_XFER_BODY))
2011 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002012 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_HTTP_XFER_BODY);
Willy Tarreaud98cf932009-12-27 22:54:55 +01002013 }
Willy Tarreaue34070e2010-01-08 00:32:27 +01002014 break;
2015 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002016 }
2017
Willy Tarreau815a9b22010-07-27 17:15:12 +02002018 rp_cons_last = s->si[0].state;
2019 rp_prod_last = s->si[1].state;
2020 rpf_last = s->rep->flags;
2021
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002022 if ((s->rep->flags ^ flags) & CF_MASK_STATIC)
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002023 goto resync_response;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002024 }
2025
Willy Tarreau576507f2010-01-07 00:09:04 +01002026 /* maybe someone has added some request analysers, so we must check and loop */
2027 if (s->req->analysers & ~req_ana_back)
2028 goto resync_request;
2029
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002030 if ((s->req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0499e352010-12-17 07:13:42 +01002031 goto resync_request;
2032
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002033 /* FIXME: here we should call protocol handlers which rely on
2034 * both buffers.
2035 */
2036
2037
2038 /*
Willy Tarreauae526782010-03-04 20:34:23 +01002039 * Now we propagate unhandled errors to the session. Normally
2040 * we're just in a data phase here since it means we have not
2041 * seen any analyser who could set an error status.
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002042 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002043 srv = objt_server(s->target);
Willy Tarreau2f976e12010-11-11 14:28:47 +01002044 if (unlikely(!(s->flags & SN_ERR_MASK))) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002045 if (s->req->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002046 /* Report it if the client got an error or a read timeout expired */
Willy Tarreau84455332009-03-15 22:34:05 +01002047 s->req->analysers = 0;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002048 if (s->req->flags & CF_READ_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002049 s->be->be_counters.cli_aborts++;
2050 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002051 if (srv)
2052 srv->counters.cli_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002053 s->flags |= SN_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002054 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002055 else if (s->req->flags & CF_READ_TIMEOUT) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002056 s->be->be_counters.cli_aborts++;
2057 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002058 if (srv)
2059 srv->counters.cli_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002060 s->flags |= SN_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01002061 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002062 else if (s->req->flags & CF_WRITE_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002063 s->be->be_counters.srv_aborts++;
2064 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002065 if (srv)
2066 srv->counters.srv_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002067 s->flags |= SN_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002068 }
2069 else {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002070 s->be->be_counters.srv_aborts++;
2071 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002072 if (srv)
2073 srv->counters.srv_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002074 s->flags |= SN_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002075 }
Willy Tarreau84455332009-03-15 22:34:05 +01002076 sess_set_term_flags(s);
2077 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002078 else if (s->rep->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002079 /* Report it if the server got an error or a read timeout expired */
2080 s->rep->analysers = 0;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002081 if (s->rep->flags & CF_READ_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002082 s->be->be_counters.srv_aborts++;
2083 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002084 if (srv)
2085 srv->counters.srv_aborts++;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002086 s->flags |= SN_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002087 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002088 else if (s->rep->flags & CF_READ_TIMEOUT) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002089 s->be->be_counters.srv_aborts++;
2090 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002091 if (srv)
2092 srv->counters.srv_aborts++;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002093 s->flags |= SN_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002094 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002095 else if (s->rep->flags & CF_WRITE_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002096 s->be->be_counters.cli_aborts++;
2097 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002098 if (srv)
2099 srv->counters.cli_aborts++;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002100 s->flags |= SN_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002101 }
2102 else {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002103 s->be->be_counters.cli_aborts++;
2104 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002105 if (srv)
2106 srv->counters.cli_aborts++;
Willy Tarreauae526782010-03-04 20:34:23 +01002107 s->flags |= SN_ERR_CLITO;
2108 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002109 sess_set_term_flags(s);
2110 }
Willy Tarreau84455332009-03-15 22:34:05 +01002111 }
2112
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002113 /*
2114 * Here we take care of forwarding unhandled data. This also includes
2115 * connection establishments and shutdown requests.
2116 */
2117
2118
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002119 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002120 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002121 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002122 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002123 */
Willy Tarreau2b028dd2013-12-31 23:56:46 +01002124 if (unlikely(!s->req->analysers &&
Willy Tarreaub31c9712012-11-11 23:05:39 +01002125 !(s->req->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau31971e52009-09-20 12:07:52 +02002126 (s->req->prod->state >= SI_ST_EST) &&
Willy Tarreau2b028dd2013-12-31 23:56:46 +01002127 (s->req->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002128 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002129 * attached to it. If any data are left in, we'll permit them to
2130 * move.
2131 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002132 channel_auto_read(s->req);
2133 channel_auto_connect(s->req);
2134 channel_auto_close(s->req);
Willy Tarreau9b28e032012-10-12 23:49:43 +02002135 buffer_flush(s->req->buf);
Willy Tarreau5bd8c372009-01-19 00:32:22 +01002136
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002137 /* We'll let data flow between the producer (if still connected)
2138 * to the consumer (which might possibly not be connected yet).
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002139 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002140 if (!(s->req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002141 channel_forward(s->req, CHN_INFINITE_FORWARD);
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002142 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002143
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002144 /* check if it is wise to enable kernel splicing to forward request data */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002145 if (!(s->req->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002146 s->req->to_forward &&
2147 (global.tune.options & GTUNE_USE_SPLICE) &&
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002148 (objt_conn(s->si[0].end) && __objt_conn(s->si[0].end)->xprt && __objt_conn(s->si[0].end)->xprt->rcv_pipe) &&
2149 (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 +01002150 (pipes_used < global.maxpipes) &&
2151 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_REQ) ||
2152 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002153 (s->req->flags & CF_STREAMER_FAST)))) {
2154 s->req->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002155 }
2156
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002157 /* reflect what the L7 analysers have seen last */
2158 rqf_last = s->req->flags;
2159
2160 /*
2161 * Now forward all shutdown requests between both sides of the buffer
2162 */
2163
Willy Tarreau520d95e2009-09-19 21:04:57 +02002164 /* first, let's check if the request buffer needs to shutdown(write), which may
2165 * happen either because the input is closed or because we want to force a close
Willy Tarreaue4599762010-03-21 23:25:09 +01002166 * once the server has begun to respond.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002167 */
Willy Tarreaub31c9712012-11-11 23:05:39 +01002168 if (unlikely((s->req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002169 (CF_AUTO_CLOSE|CF_SHUTR)))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002170 channel_shutw_now(s->req);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002171
2172 /* shutdown(write) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002173 if (unlikely((s->req->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
Willy Tarreau8615c2a2013-06-21 08:20:19 +02002174 channel_is_empty(s->req))) {
2175 if (s->req->flags & CF_READ_ERROR)
2176 s->req->cons->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02002177 si_shutw(s->req->cons);
Willy Tarreau8615c2a2013-06-21 08:20:19 +02002178 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002179
2180 /* shutdown(write) done on server side, we must stop the client too */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002181 if (unlikely((s->req->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW &&
Willy Tarreau3dbc6942008-12-07 13:05:04 +01002182 !s->req->analysers))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002183 channel_shutr_now(s->req);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002184
2185 /* shutdown(read) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002186 if (unlikely((s->req->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002187 if (s->req->prod->flags & SI_FL_NOHALF)
2188 s->req->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02002189 si_shutr(s->req->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002190 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002191
Willy Tarreau520d95e2009-09-19 21:04:57 +02002192 /* it's possible that an upper layer has requested a connection setup or abort.
2193 * There are 2 situations where we decide to establish a new connection :
2194 * - there are data scheduled for emission in the buffer
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002195 * - the CF_AUTO_CONNECT flag is set (active connection)
Willy Tarreau520d95e2009-09-19 21:04:57 +02002196 */
2197 if (s->req->cons->state == SI_ST_INI) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002198 if (!(s->req->flags & CF_SHUTW)) {
2199 if ((s->req->flags & CF_AUTO_CONNECT) || !channel_is_empty(s->req)) {
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002200 /* If we have an appctx, there is no connect method, so we
2201 * immediately switch to the connected state, otherwise we
2202 * perform a connection request.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002203 */
Willy Tarreau85e7d002010-05-31 11:57:51 +02002204 s->req->cons->state = SI_ST_REQ; /* new connection requested */
Willy Tarreau070ceb62010-06-01 10:36:43 +02002205 s->req->cons->conn_retries = s->be->conn_retries;
Willy Tarreau520d95e2009-09-19 21:04:57 +02002206 }
Willy Tarreau73201222009-08-16 18:27:24 +02002207 }
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002208 else {
Willy Tarreau92795622009-03-06 12:51:23 +01002209 s->req->cons->state = SI_ST_CLO; /* shutw+ini = abort */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002210 channel_shutw_now(s->req); /* fix buffer flags upon abort */
2211 channel_shutr_now(s->rep);
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002212 }
Willy Tarreau92795622009-03-06 12:51:23 +01002213 }
2214
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002215
2216 /* we may have a pending connection request, or a connection waiting
2217 * for completion.
2218 */
2219 if (s->si[1].state >= SI_ST_REQ && s->si[1].state < SI_ST_CON) {
2220 do {
2221 /* nb: step 1 might switch from QUE to ASS, but we first want
2222 * to give a chance to step 2 to perform a redirect if needed.
2223 */
2224 if (s->si[1].state != SI_ST_REQ)
2225 sess_update_stream_int(s, &s->si[1]);
Willy Tarreaub44c8732013-12-31 23:16:50 +01002226 if (s->si[1].state == SI_ST_REQ)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002227 sess_prepare_conn_req(s, &s->si[1]);
2228
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +01002229 /* applets directly go to the ESTABLISHED state. Similarly,
2230 * servers experience the same fate when their connection
2231 * is reused.
2232 */
Willy Tarreaub44c8732013-12-31 23:16:50 +01002233 if (unlikely(s->si[1].state == SI_ST_EST))
2234 sess_establish(s, &s->si[1]);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01002235
Willy Tarreaub44c8732013-12-31 23:16:50 +01002236 /* Now we can add the server name to a header (if requested) */
2237 /* check for HTTP mode and proxy server_name_hdr_name != NULL */
2238 if ((s->si[1].state >= SI_ST_CON) &&
2239 (s->be->server_id_hdr_name != NULL) &&
2240 (s->be->mode == PR_MODE_HTTP) &&
2241 objt_server(s->target)) {
2242 http_send_name_header(&s->txn, s->be, objt_server(s->target)->id);
Willy Tarreau1e5dfda2013-04-07 18:19:16 +02002243 }
2244
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002245 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01002246 if (s->si[1].state == SI_ST_ASS && srv && srv->rdr_len && (s->flags & SN_REDIRECTABLE))
Willy Tarreau71241ab2012-12-27 11:30:54 +01002247 http_perform_server_redirect(s, &s->si[1]);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002248 } while (s->si[1].state == SI_ST_ASS);
2249 }
2250
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002251 /* Benchmarks have shown that it's optimal to do a full resync now */
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002252 if (s->req->prod->state == SI_ST_DIS || s->req->cons->state == SI_ST_DIS)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002253 goto resync_stream_interface;
2254
Willy Tarreau815a9b22010-07-27 17:15:12 +02002255 /* otherwise we want to check if we need to resync the req buffer or not */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002256 if ((s->req->flags ^ rqf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002257 goto resync_request;
2258
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002259 /* perform output updates to the response buffer */
Willy Tarreau84455332009-03-15 22:34:05 +01002260
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002261 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002262 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002263 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002264 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002265 */
Willy Tarreau2b028dd2013-12-31 23:56:46 +01002266 if (unlikely(!s->rep->analysers &&
Willy Tarreaub31c9712012-11-11 23:05:39 +01002267 !(s->rep->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau31971e52009-09-20 12:07:52 +02002268 (s->rep->prod->state >= SI_ST_EST) &&
Willy Tarreau2b028dd2013-12-31 23:56:46 +01002269 (s->rep->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002270 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002271 * attached to it. If any data are left in, we'll permit them to
2272 * move.
2273 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002274 channel_auto_read(s->rep);
2275 channel_auto_close(s->rep);
Willy Tarreau9b28e032012-10-12 23:49:43 +02002276 buffer_flush(s->rep->buf);
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002277
2278 /* We'll let data flow between the producer (if still connected)
2279 * to the consumer.
2280 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002281 if (!(s->rep->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002282 channel_forward(s->rep, CHN_INFINITE_FORWARD);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002283
2284 /* if we have no analyser anymore in any direction and have a
2285 * tunnel timeout set, use it now.
2286 */
2287 if (!s->req->analysers && s->be->timeout.tunnel) {
2288 s->req->rto = s->req->wto = s->rep->rto = s->rep->wto =
2289 s->be->timeout.tunnel;
2290 s->req->rex = s->req->wex = s->rep->rex = s->rep->wex =
2291 tick_add(now_ms, s->be->timeout.tunnel);
2292 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002293 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002294
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002295 /* check if it is wise to enable kernel splicing to forward response data */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002296 if (!(s->rep->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002297 s->rep->to_forward &&
2298 (global.tune.options & GTUNE_USE_SPLICE) &&
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002299 (objt_conn(s->si[0].end) && __objt_conn(s->si[0].end)->xprt && __objt_conn(s->si[0].end)->xprt->snd_pipe) &&
2300 (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 +01002301 (pipes_used < global.maxpipes) &&
2302 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_RTR) ||
2303 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002304 (s->rep->flags & CF_STREAMER_FAST)))) {
2305 s->rep->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002306 }
2307
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002308 /* reflect what the L7 analysers have seen last */
2309 rpf_last = s->rep->flags;
2310
2311 /*
2312 * Now forward all shutdown requests between both sides of the buffer
2313 */
2314
2315 /*
2316 * FIXME: this is probably where we should produce error responses.
2317 */
2318
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002319 /* first, let's check if the response buffer needs to shutdown(write) */
Willy Tarreaub31c9712012-11-11 23:05:39 +01002320 if (unlikely((s->rep->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002321 (CF_AUTO_CLOSE|CF_SHUTR)))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002322 channel_shutw_now(s->rep);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002323
2324 /* shutdown(write) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002325 if (unlikely((s->rep->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
Willy Tarreau8e21bb92012-08-24 22:40:29 +02002326 channel_is_empty(s->rep)))
Willy Tarreau73b013b2012-05-21 16:31:45 +02002327 si_shutw(s->rep->cons);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002328
2329 /* shutdown(write) done on the client side, we must stop the server too */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002330 if (unlikely((s->rep->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW) &&
Willy Tarreau3dbc6942008-12-07 13:05:04 +01002331 !s->rep->analysers)
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002332 channel_shutr_now(s->rep);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002333
2334 /* shutdown(read) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002335 if (unlikely((s->rep->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002336 if (s->rep->prod->flags & SI_FL_NOHALF)
2337 s->rep->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02002338 si_shutr(s->rep->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002339 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002340
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002341 if (s->req->prod->state == SI_ST_DIS || s->req->cons->state == SI_ST_DIS)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002342 goto resync_stream_interface;
2343
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002344 if (s->req->flags != rqf_last)
2345 goto resync_request;
2346
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002347 if ((s->rep->flags ^ rpf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002348 goto resync_response;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002349
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002350 /* we're interested in getting wakeups again */
2351 s->req->prod->flags &= ~SI_FL_DONT_WAKE;
2352 s->req->cons->flags &= ~SI_FL_DONT_WAKE;
2353
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002354 /* This is needed only when debugging is enabled, to indicate
2355 * client-side or server-side close. Please note that in the unlikely
2356 * event where both sides would close at once, the sequence is reported
2357 * on the server side first.
2358 */
2359 if (unlikely((global.mode & MODE_DEBUG) &&
2360 (!(global.mode & MODE_QUIET) ||
2361 (global.mode & MODE_VERBOSE)))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002362 if (s->si[1].state == SI_ST_CLO &&
2363 s->si[1].prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002364 chunk_printf(&trash, "%08x:%s.srvcls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002365 s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002366 objt_conn(s->si[0].end) ? (unsigned short)objt_conn(s->si[0].end)->t.sock.fd : -1,
2367 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 +01002368 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002369 }
2370
2371 if (s->si[0].state == SI_ST_CLO &&
2372 s->si[0].prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002373 chunk_printf(&trash, "%08x:%s.clicls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002374 s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002375 objt_conn(s->si[0].end) ? (unsigned short)objt_conn(s->si[0].end)->t.sock.fd : -1,
2376 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 +01002377 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002378 }
2379 }
2380
2381 if (likely((s->rep->cons->state != SI_ST_CLO) ||
2382 (s->req->cons->state > SI_ST_INI && s->req->cons->state < SI_ST_CLO))) {
2383
2384 if ((s->fe->options & PR_O_CONTSTATS) && (s->flags & SN_BE_ASSIGNED))
2385 session_process_counters(s);
2386
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002387 if (s->rep->cons->state == SI_ST_EST && obj_type(s->rep->cons->end) != OBJ_TYPE_APPCTX)
Willy Tarreau73b013b2012-05-21 16:31:45 +02002388 si_update(s->rep->cons);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002389
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002390 if (s->req->cons->state == SI_ST_EST && obj_type(s->req->cons->end) != OBJ_TYPE_APPCTX)
Willy Tarreau73b013b2012-05-21 16:31:45 +02002391 si_update(s->req->cons);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002392
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002393 s->req->flags &= ~(CF_READ_NULL|CF_READ_PARTIAL|CF_WRITE_NULL|CF_WRITE_PARTIAL|CF_READ_ATTACHED);
2394 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 +01002395 s->si[0].prev_state = s->si[0].state;
2396 s->si[1].prev_state = s->si[1].state;
Willy Tarreaub0ef7352008-12-14 13:26:20 +01002397 s->si[0].flags &= ~(SI_FL_ERR|SI_FL_EXP);
2398 s->si[1].flags &= ~(SI_FL_ERR|SI_FL_EXP);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002399
2400 /* Trick: if a request is being waiting for the server to respond,
2401 * and if we know the server can timeout, we don't want the timeout
2402 * to expire on the client side first, but we're still interested
2403 * in passing data from the client to the server (eg: POST). Thus,
2404 * we can cancel the client's request timeout if the server's
2405 * request timeout is set and the server has not yet sent a response.
2406 */
2407
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002408 if ((s->rep->flags & (CF_AUTO_CLOSE|CF_SHUTR)) == 0 &&
Willy Tarreau86491c32008-12-14 09:04:47 +01002409 (tick_isset(s->req->wex) || tick_isset(s->rep->rex))) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002410 s->req->flags |= CF_READ_NOEXP;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002411 s->req->rex = TICK_ETERNITY;
Willy Tarreau86491c32008-12-14 09:04:47 +01002412 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002413
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002414 /* When any of the stream interfaces is attached to an applet,
2415 * we have to call it here. Note that this one may wake the
2416 * task up again. If at least one applet was called, the current
2417 * task might have been woken up, in which case we don't want it
2418 * to be requeued to the wait queue but rather to the run queue
2419 * to run ASAP. The bitwise "or" in the condition ensures that
2420 * both functions are always called and that we wake up if at
2421 * least one did something.
Willy Tarreau1accfc02009-09-05 20:57:35 +02002422 */
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002423 if ((si_applet_call(s->req->cons) | si_applet_call(s->rep->cons)) != 0) {
Willy Tarreau1accfc02009-09-05 20:57:35 +02002424 if (task_in_rq(t)) {
Willy Tarreau1accfc02009-09-05 20:57:35 +02002425 t->expire = TICK_ETERNITY;
2426 return t;
2427 }
2428 }
2429
Willy Tarreau798f4322012-11-08 14:49:17 +01002430 update_exp_and_leave:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002431 t->expire = tick_first(tick_first(s->req->rex, s->req->wex),
2432 tick_first(s->rep->rex, s->rep->wex));
2433 if (s->req->analysers)
2434 t->expire = tick_first(t->expire, s->req->analyse_exp);
2435
2436 if (s->si[0].exp)
2437 t->expire = tick_first(t->expire, s->si[0].exp);
2438
2439 if (s->si[1].exp)
2440 t->expire = tick_first(t->expire, s->si[1].exp);
2441
2442#ifdef DEBUG_FULL
Willy Tarreau127334e2009-03-28 10:47:26 +01002443 fprintf(stderr,
2444 "[%u] queuing with exp=%u req->rex=%u req->wex=%u req->ana_exp=%u"
2445 " rep->rex=%u rep->wex=%u, si[0].exp=%u, si[1].exp=%u, cs=%d, ss=%d\n",
2446 now_ms, t->expire, s->req->rex, s->req->wex, s->req->analyse_exp,
2447 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 +01002448#endif
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002449
2450#ifdef DEBUG_DEV
2451 /* this may only happen when no timeout is set or in case of an FSM bug */
Willy Tarreaud0a201b2009-03-08 15:53:06 +01002452 if (!tick_isset(t->expire))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002453 ABORT_NOW();
2454#endif
Willy Tarreau26c25062009-03-08 09:38:41 +01002455 return t; /* nothing more to do */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002456 }
2457
2458 s->fe->feconn--;
2459 if (s->flags & SN_BE_ASSIGNED)
2460 s->be->beconn--;
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002461 if (!(s->listener->options & LI_O_UNLIMITED))
2462 actconn--;
Willy Tarreauaf7ad002010-08-31 15:39:26 +02002463 jobs--;
Willy Tarreau6e6fb2b2009-08-16 18:20:44 +02002464 s->listener->nbconn--;
Willy Tarreau62793712011-07-24 19:23:38 +02002465 if (s->listener->state == LI_FULL)
2466 resume_listener(s->listener);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002467
Willy Tarreau08ceb102011-07-24 22:58:00 +02002468 /* Dequeues all of the listeners waiting for a resource */
2469 if (!LIST_ISEMPTY(&global_listener_queue))
2470 dequeue_all_listeners(&global_listener_queue);
2471
Willy Tarreaub32907b2011-07-25 08:37:44 +02002472 if (!LIST_ISEMPTY(&s->fe->listener_queue) &&
2473 (!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 +02002474 dequeue_all_listeners(&s->fe->listener_queue);
2475
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002476 if (unlikely((global.mode & MODE_DEBUG) &&
2477 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)))) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002478 chunk_printf(&trash, "%08x:%s.closed[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002479 s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002480 objt_conn(s->si[0].end) ? (unsigned short)objt_conn(s->si[0].end)->t.sock.fd : -1,
2481 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 +01002482 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002483 }
2484
2485 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
2486 session_process_counters(s);
2487
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002488 if (s->txn.status) {
2489 int n;
2490
2491 n = s->txn.status / 100;
2492 if (n < 1 || n > 5)
2493 n = 0;
2494
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002495 if (s->fe->mode == PR_MODE_HTTP) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002496 s->fe->fe_counters.p.http.rsp[n]++;
Willy Tarreau8139b992012-11-27 07:35:31 +01002497 if (s->comp_algo && (s->flags & SN_COMP_READY))
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002498 s->fe->fe_counters.p.http.comp_rsp++;
2499 }
Willy Tarreau24657792010-02-26 10:30:28 +01002500 if ((s->flags & SN_BE_ASSIGNED) &&
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002501 (s->be->mode == PR_MODE_HTTP)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002502 s->be->be_counters.p.http.rsp[n]++;
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002503 s->be->be_counters.p.http.cum_req++;
Willy Tarreau8139b992012-11-27 07:35:31 +01002504 if (s->comp_algo && (s->flags & SN_COMP_READY))
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002505 s->be->be_counters.p.http.comp_rsp++;
2506 }
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002507 }
2508
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002509 /* let's do a final log if we need it */
Willy Tarreaud79a3b22012-12-28 09:40:16 +01002510 if (!LIST_ISEMPTY(&s->fe->logformat) && s->logs.logwait &&
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002511 !(s->flags & SN_MONITOR) &&
2512 (!(s->fe->options & PR_O_NULLNOLOG) || s->req->total)) {
Willy Tarreaua5555ec2008-11-30 19:02:32 +01002513 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002514 }
2515
2516 /* the task MUST not be in the run queue anymore */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002517 session_free(s);
Willy Tarreau26c25062009-03-08 09:38:41 +01002518 task_delete(t);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002519 task_free(t);
Willy Tarreau26c25062009-03-08 09:38:41 +01002520 return NULL;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002521}
2522
Willy Tarreau7c669d72008-06-20 15:04:11 +02002523/*
2524 * This function adjusts sess->srv_conn and maintains the previous and new
2525 * server's served session counts. Setting newsrv to NULL is enough to release
2526 * current connection slot. This function also notifies any LB algo which might
2527 * expect to be informed about any change in the number of active sessions on a
2528 * server.
2529 */
2530void sess_change_server(struct session *sess, struct server *newsrv)
2531{
2532 if (sess->srv_conn == newsrv)
2533 return;
2534
2535 if (sess->srv_conn) {
2536 sess->srv_conn->served--;
2537 if (sess->srv_conn->proxy->lbprm.server_drop_conn)
2538 sess->srv_conn->proxy->lbprm.server_drop_conn(sess->srv_conn);
Simon Hormanaf514952011-06-21 14:34:57 +09002539 session_del_srv_conn(sess);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002540 }
2541
2542 if (newsrv) {
2543 newsrv->served++;
2544 if (newsrv->proxy->lbprm.server_take_conn)
2545 newsrv->proxy->lbprm.server_take_conn(newsrv);
Simon Hormanaf514952011-06-21 14:34:57 +09002546 session_add_srv_conn(sess, newsrv);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002547 }
2548}
2549
Willy Tarreau84455332009-03-15 22:34:05 +01002550/* Handle server-side errors for default protocols. It is called whenever a a
2551 * connection setup is aborted or a request is aborted in queue. It sets the
2552 * session termination flags so that the caller does not have to worry about
2553 * them. It's installed as ->srv_error for the server-side stream_interface.
2554 */
2555void default_srv_error(struct session *s, struct stream_interface *si)
2556{
2557 int err_type = si->err_type;
2558 int err = 0, fin = 0;
2559
2560 if (err_type & SI_ET_QUEUE_ABRT) {
2561 err = SN_ERR_CLICL;
2562 fin = SN_FINST_Q;
2563 }
2564 else if (err_type & SI_ET_CONN_ABRT) {
2565 err = SN_ERR_CLICL;
2566 fin = SN_FINST_C;
2567 }
2568 else if (err_type & SI_ET_QUEUE_TO) {
2569 err = SN_ERR_SRVTO;
2570 fin = SN_FINST_Q;
2571 }
2572 else if (err_type & SI_ET_QUEUE_ERR) {
2573 err = SN_ERR_SRVCL;
2574 fin = SN_FINST_Q;
2575 }
2576 else if (err_type & SI_ET_CONN_TO) {
2577 err = SN_ERR_SRVTO;
2578 fin = SN_FINST_C;
2579 }
2580 else if (err_type & SI_ET_CONN_ERR) {
2581 err = SN_ERR_SRVCL;
2582 fin = SN_FINST_C;
2583 }
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002584 else if (err_type & SI_ET_CONN_RES) {
2585 err = SN_ERR_RESOURCE;
2586 fin = SN_FINST_C;
2587 }
Willy Tarreau84455332009-03-15 22:34:05 +01002588 else /* SI_ET_CONN_OTHER and others */ {
2589 err = SN_ERR_INTERNAL;
2590 fin = SN_FINST_C;
2591 }
2592
2593 if (!(s->flags & SN_ERR_MASK))
2594 s->flags |= err;
2595 if (!(s->flags & SN_FINST_MASK))
2596 s->flags |= fin;
2597}
Willy Tarreau7c669d72008-06-20 15:04:11 +02002598
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002599/* kill a session and set the termination flags to <why> (one of SN_ERR_*) */
2600void session_shutdown(struct session *session, int why)
2601{
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002602 if (session->req->flags & (CF_SHUTW|CF_SHUTW_NOW))
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002603 return;
2604
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002605 channel_shutw_now(session->req);
2606 channel_shutr_now(session->rep);
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002607 session->task->nice = 1024;
2608 if (!(session->flags & SN_ERR_MASK))
2609 session->flags |= why;
2610 task_wakeup(session->task, TASK_WOKEN_OTHER);
2611}
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02002612
Willy Tarreau8b22a712010-06-18 17:46:06 +02002613/************************************************************************/
2614/* All supported ACL keywords must be declared here. */
2615/************************************************************************/
2616
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002617/* Returns a pointer to a stkctr depending on the fetch keyword name.
2618 * It is designed to be called as sc[0-9]_* sc_* or src_* exclusively.
Willy Tarreaua65536c2013-07-22 22:40:11 +02002619 * sc[0-9]_* will return a pointer to the respective field in the
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002620 * session <l4>. sc_* requires an UINT argument specifying the stick
2621 * counter number. src_* will fill a locally allocated structure with
Willy Tarreaua65536c2013-07-22 22:40:11 +02002622 * the table and entry corresponding to what is specified with src_*.
Willy Tarreau0f791d42013-07-23 19:56:43 +02002623 * NULL may be returned if the designated stkctr is not tracked. For
2624 * the sc_* and sc[0-9]_* forms, an optional table argument may be
2625 * passed. When present, the currently tracked key is then looked up
2626 * in the specified table instead of the current table. The purpose is
2627 * to be able to convery multiple values per key (eg: have gpc0 from
2628 * multiple tables).
Willy Tarreaua65536c2013-07-22 22:40:11 +02002629 */
2630static struct stkctr *
2631smp_fetch_sc_stkctr(struct session *l4, const struct arg *args, const char *kw)
2632{
2633 static struct stkctr stkctr;
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002634 unsigned int num = kw[2] - '0';
Willy Tarreau0f791d42013-07-23 19:56:43 +02002635 int arg = 0;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002636
Willy Tarreau0f791d42013-07-23 19:56:43 +02002637 if (num == '_' - '0') {
2638 /* sc_* variant, args[0] = ctr# (mandatory) */
2639 num = args[arg++].data.uint;
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002640 if (num >= MAX_SESS_STKCTR)
2641 return NULL;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002642 }
Willy Tarreau0f791d42013-07-23 19:56:43 +02002643 else if (num > 9) { /* src_* variant, args[0] = table */
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002644 struct stktable_key *key;
2645 struct connection *conn = objt_conn(l4->si[0].end);
2646
2647 if (!conn)
2648 return NULL;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002649
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002650 key = addr_to_stktable_key(&conn->addr.from);
Willy Tarreaua65536c2013-07-22 22:40:11 +02002651 if (!key)
2652 return NULL;
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002653
Willy Tarreaua65536c2013-07-22 22:40:11 +02002654 stkctr.table = &args->data.prx->table;
2655 stkctr.entry = stktable_lookup_key(stkctr.table, key);
2656 return &stkctr;
2657 }
Willy Tarreau0f791d42013-07-23 19:56:43 +02002658
2659 /* Here, <num> contains the counter number from 0 to 9 for
2660 * the sc[0-9]_ form, or even higher using sc_(num) if needed.
2661 * args[arg] is the first optional argument.
2662 */
2663 if (unlikely(args[arg].type == ARGT_TAB)) {
2664 /* an alternate table was specified, let's look up the same key there */
2665 stkctr.table = &args[arg].data.prx->table;
2666 stkctr.entry = stktable_lookup(stkctr.table, l4->stkctr[num].entry);
2667 return &stkctr;
2668 }
2669 return l4->stkctr[num].entry ? &l4->stkctr[num] : NULL;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002670}
2671
Willy Tarreau88821242013-07-22 18:29:29 +02002672/* set return a boolean indicating if the requested session counter is
2673 * currently being tracked or not.
2674 * Supports being called as "sc[0-9]_tracked" only.
2675 */
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002676static int
Willy Tarreau88821242013-07-22 18:29:29 +02002677smp_fetch_sc_tracked(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02002678 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002679{
2680 smp->flags = SMP_F_VOL_TEST;
2681 smp->type = SMP_T_BOOL;
Willy Tarreau88821242013-07-22 18:29:29 +02002682 smp->data.uint = !!l4->stkctr[kw[2] - '0'].entry;
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002683 return 1;
2684}
2685
Willy Tarreau30b20462013-07-22 19:46:52 +02002686/* set <smp> to the General Purpose Counter 0 value from the session's tracked
2687 * frontend counters or from the src.
2688 * Supports being called as "sc[0-9]_get_gpc0" or "src_get_gpc0" only. Value
2689 * zero is returned if the key is new.
2690 */
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002691static int
Willy Tarreau30b20462013-07-22 19:46:52 +02002692smp_fetch_sc_get_gpc0(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2693 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002694{
Willy Tarreau30b20462013-07-22 19:46:52 +02002695 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2696
2697 if (!stkctr)
2698 return 0;
2699
Willy Tarreau37406352012-04-23 16:16:37 +02002700 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002701 smp->type = SMP_T_UINT;
2702 smp->data.uint = 0;
Willy Tarreau30b20462013-07-22 19:46:52 +02002703
2704 if (stkctr->entry != NULL) {
2705 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_GPC0);
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002706 if (!ptr)
2707 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002708 smp->data.uint = stktable_data_cast(ptr, gpc0);
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002709 }
2710 return 1;
2711}
2712
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002713/* set <smp> to the General Purpose Counter 0's event rate from the session's
2714 * tracked frontend counters or from the src.
2715 * Supports being called as "sc[0-9]_gpc0_rate" or "src_gpc0_rate" only.
2716 * Value zero is returned if the key is new.
2717 */
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002718static int
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002719smp_fetch_sc_gpc0_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2720 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002721{
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002722 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2723
2724 if (!stkctr)
2725 return 0;
2726
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002727 smp->flags = SMP_F_VOL_TEST;
2728 smp->type = SMP_T_UINT;
2729 smp->data.uint = 0;
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002730 if (stkctr->entry != NULL) {
2731 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_GPC0_RATE);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002732 if (!ptr)
2733 return 0; /* parameter not stored */
2734 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, gpc0_rate),
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002735 stkctr->table->data_arg[STKTABLE_DT_GPC0_RATE].u);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002736 }
2737 return 1;
2738}
2739
Willy Tarreau710d38c2013-07-23 00:07:04 +02002740/* Increment the General Purpose Counter 0 value from the session's tracked
2741 * frontend counters and return it into temp integer.
2742 * Supports being called as "sc[0-9]_inc_gpc0" or "src_inc_gpc0" only.
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002743 */
2744static int
Willy Tarreau710d38c2013-07-23 00:07:04 +02002745smp_fetch_sc_inc_gpc0(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2746 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002747{
Willy Tarreau710d38c2013-07-23 00:07:04 +02002748 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2749
2750 if (!stkctr)
2751 return 0;
2752
Willy Tarreau37406352012-04-23 16:16:37 +02002753 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002754 smp->type = SMP_T_UINT;
2755 smp->data.uint = 0;
Willy Tarreau710d38c2013-07-23 00:07:04 +02002756 if (stkctr->entry != NULL) {
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002757 void *ptr;
2758
2759 /* First, update gpc0_rate if it's tracked. Second, update its
2760 * gpc0 if tracked. Returns gpc0's value otherwise the curr_ctr.
2761 */
Willy Tarreau710d38c2013-07-23 00:07:04 +02002762 ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_GPC0_RATE);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002763 if (ptr) {
2764 update_freq_ctr_period(&stktable_data_cast(ptr, gpc0_rate),
Willy Tarreau710d38c2013-07-23 00:07:04 +02002765 stkctr->table->data_arg[STKTABLE_DT_GPC0_RATE].u, 1);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002766 smp->data.uint = (&stktable_data_cast(ptr, gpc0_rate))->curr_ctr;
2767 }
2768
Willy Tarreau710d38c2013-07-23 00:07:04 +02002769 ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_GPC0);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002770 if (ptr)
2771 smp->data.uint = ++stktable_data_cast(ptr, gpc0);
2772
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002773 }
2774 return 1;
2775}
2776
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002777/* Clear the General Purpose Counter 0 value from the session's tracked
2778 * frontend counters and return its previous value into temp integer.
2779 * Supports being called as "sc[0-9]_clr_gpc0" or "src_clr_gpc0" only.
Willy Tarreauf73cd112011-08-13 01:45:16 +02002780 */
2781static int
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002782smp_fetch_sc_clr_gpc0(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2783 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauf73cd112011-08-13 01:45:16 +02002784{
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002785 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2786
2787 if (!stkctr)
2788 return 0;
2789
Willy Tarreau37406352012-04-23 16:16:37 +02002790 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002791 smp->type = SMP_T_UINT;
2792 smp->data.uint = 0;
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002793 if (stkctr->entry != NULL) {
2794 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_GPC0);
Willy Tarreauf73cd112011-08-13 01:45:16 +02002795 if (!ptr)
2796 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002797 smp->data.uint = stktable_data_cast(ptr, gpc0);
Willy Tarreauf73cd112011-08-13 01:45:16 +02002798 stktable_data_cast(ptr, gpc0) = 0;
2799 }
2800 return 1;
2801}
2802
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002803/* set <smp> to the cumulated number of connections from the session's tracked
2804 * frontend counters. Supports being called as "sc[0-9]_conn_cnt" or
2805 * "src_conn_cnt" only.
2806 */
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002807static int
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002808smp_fetch_sc_conn_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2809 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002810{
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002811 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2812
2813 if (!stkctr)
2814 return 0;
2815
Willy Tarreau37406352012-04-23 16:16:37 +02002816 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002817 smp->type = SMP_T_UINT;
2818 smp->data.uint = 0;
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002819 if (stkctr->entry != NULL) {
2820 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_CONN_CNT);
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002821 if (!ptr)
2822 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002823 smp->data.uint = stktable_data_cast(ptr, conn_cnt);
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002824 }
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002825 return 1;
2826}
2827
Willy Tarreauc8c65702013-07-23 15:09:35 +02002828/* set <smp> to the connection rate from the session's tracked frontend
2829 * counters. Supports being called as "sc[0-9]_conn_rate" or "src_conn_rate"
2830 * only.
2831 */
Willy Tarreau91c43d72010-06-20 11:19:22 +02002832static int
Willy Tarreauc8c65702013-07-23 15:09:35 +02002833smp_fetch_sc_conn_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2834 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau91c43d72010-06-20 11:19:22 +02002835{
Willy Tarreauc8c65702013-07-23 15:09:35 +02002836 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2837
2838 if (!stkctr)
2839 return 0;
2840
Willy Tarreau37406352012-04-23 16:16:37 +02002841 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002842 smp->type = SMP_T_UINT;
2843 smp->data.uint = 0;
Willy Tarreauc8c65702013-07-23 15:09:35 +02002844 if (stkctr->entry != NULL) {
2845 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_CONN_RATE);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002846 if (!ptr)
2847 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002848 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, conn_rate),
Willy Tarreauc8c65702013-07-23 15:09:35 +02002849 stkctr->table->data_arg[STKTABLE_DT_CONN_RATE].u);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002850 }
2851 return 1;
2852}
2853
Willy Tarreaua5e37562011-12-16 17:06:15 +01002854/* set temp integer to the number of connections from the session's source address
Willy Tarreau8b22a712010-06-18 17:46:06 +02002855 * in the table pointed to by expr, after updating it.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02002856 * Accepts exactly 1 argument of type table.
Willy Tarreau8b22a712010-06-18 17:46:06 +02002857 */
2858static int
Willy Tarreau281c7992013-01-08 01:23:27 +01002859smp_fetch_src_updt_conn_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02002860 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau8b22a712010-06-18 17:46:06 +02002861{
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002862 struct connection *conn = objt_conn(l4->si[0].end);
Willy Tarreau8b22a712010-06-18 17:46:06 +02002863 struct stksess *ts;
2864 struct stktable_key *key;
2865 void *ptr;
2866
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002867 if (!conn)
2868 return 0;
2869
2870 key = addr_to_stktable_key(&conn->addr.from);
Willy Tarreau8b22a712010-06-18 17:46:06 +02002871 if (!key)
David du Colombier4f92d322011-03-24 11:09:31 +01002872 return 0;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002873
Willy Tarreau24e32d82012-04-23 23:55:44 +02002874 px = args->data.prx;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002875
Willy Tarreau1f7e9252010-06-20 12:27:21 +02002876 if ((ts = stktable_update_key(&px->table, key)) == NULL)
2877 /* entry does not exist and could not be created */
2878 return 0;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002879
2880 ptr = stktable_data_ptr(&px->table, ts, STKTABLE_DT_CONN_CNT);
2881 if (!ptr)
2882 return 0; /* parameter not stored in this table */
2883
Willy Tarreauf853c462012-04-23 18:53:56 +02002884 smp->type = SMP_T_UINT;
2885 smp->data.uint = ++stktable_data_cast(ptr, conn_cnt);
Willy Tarreau37406352012-04-23 16:16:37 +02002886 smp->flags = SMP_F_VOL_TEST;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002887 return 1;
2888}
2889
Willy Tarreauf44a5532013-07-23 15:17:53 +02002890/* set <smp> to the number of concurrent connections from the session's tracked
2891 * frontend counters. Supports being called as "sc[0-9]_conn_cur" or
2892 * "src_conn_cur" only.
2893 */
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002894static int
Willy Tarreauf44a5532013-07-23 15:17:53 +02002895smp_fetch_sc_conn_cur(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2896 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002897{
Willy Tarreauf44a5532013-07-23 15:17:53 +02002898 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2899
2900 if (!stkctr)
2901 return 0;
2902
Willy Tarreau37406352012-04-23 16:16:37 +02002903 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002904 smp->type = SMP_T_UINT;
2905 smp->data.uint = 0;
Willy Tarreauf44a5532013-07-23 15:17:53 +02002906 if (stkctr->entry != NULL) {
2907 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_CONN_CUR);
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002908 if (!ptr)
2909 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002910 smp->data.uint = stktable_data_cast(ptr, conn_cur);
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002911 }
2912 return 1;
2913}
2914
Willy Tarreau20843082013-07-23 15:35:33 +02002915/* set <smp> to the cumulated number of sessions from the session's tracked
2916 * frontend counters. Supports being called as "sc[0-9]_sess_cnt" or
2917 * "src_sess_cnt" only.
2918 */
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002919static int
Willy Tarreau20843082013-07-23 15:35:33 +02002920smp_fetch_sc_sess_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2921 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002922{
Willy Tarreau20843082013-07-23 15:35:33 +02002923 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2924
2925 if (!stkctr)
2926 return 0;
2927
Willy Tarreau37406352012-04-23 16:16:37 +02002928 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002929 smp->type = SMP_T_UINT;
2930 smp->data.uint = 0;
Willy Tarreau20843082013-07-23 15:35:33 +02002931 if (stkctr->entry != NULL) {
2932 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_SESS_CNT);
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002933 if (!ptr)
2934 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002935 smp->data.uint = stktable_data_cast(ptr, sess_cnt);
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002936 }
2937 return 1;
2938}
2939
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002940/* set <smp> to the session rate from the session's tracked frontend counters.
2941 * Supports being called as "sc[0-9]_sess_rate" or "src_sess_rate" only.
2942 */
Willy Tarreau91c43d72010-06-20 11:19:22 +02002943static int
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002944smp_fetch_sc_sess_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2945 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau91c43d72010-06-20 11:19:22 +02002946{
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002947 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2948
2949 if (!stkctr)
2950 return 0;
2951
Willy Tarreau37406352012-04-23 16:16:37 +02002952 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002953 smp->type = SMP_T_UINT;
2954 smp->data.uint = 0;
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002955 if (stkctr->entry != NULL) {
2956 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_SESS_RATE);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002957 if (!ptr)
2958 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002959 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, sess_rate),
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002960 stkctr->table->data_arg[STKTABLE_DT_SESS_RATE].u);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002961 }
2962 return 1;
2963}
2964
Willy Tarreau91200da2013-07-23 15:55:19 +02002965/* set <smp> to the cumulated number of HTTP requests from the session's tracked
2966 * frontend counters. Supports being called as "sc[0-9]_http_req_cnt" or
2967 * "src_http_req_cnt" only.
2968 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02002969static int
Willy Tarreau91200da2013-07-23 15:55:19 +02002970smp_fetch_sc_http_req_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2971 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02002972{
Willy Tarreau91200da2013-07-23 15:55:19 +02002973 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2974
2975 if (!stkctr)
2976 return 0;
2977
Willy Tarreau37406352012-04-23 16:16:37 +02002978 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002979 smp->type = SMP_T_UINT;
2980 smp->data.uint = 0;
Willy Tarreau91200da2013-07-23 15:55:19 +02002981 if (stkctr->entry != NULL) {
2982 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_HTTP_REQ_CNT);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002983 if (!ptr)
2984 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002985 smp->data.uint = stktable_data_cast(ptr, http_req_cnt);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002986 }
2987 return 1;
2988}
2989
Willy Tarreaucf477632013-07-23 16:04:37 +02002990/* set <smp> to the HTTP request rate from the session's tracked frontend
2991 * counters. Supports being called as "sc[0-9]_http_req_rate" or
2992 * "src_http_req_rate" only.
2993 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02002994static int
Willy Tarreaucf477632013-07-23 16:04:37 +02002995smp_fetch_sc_http_req_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2996 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02002997{
Willy Tarreaucf477632013-07-23 16:04:37 +02002998 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2999
3000 if (!stkctr)
3001 return 0;
3002
Willy Tarreau37406352012-04-23 16:16:37 +02003003 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003004 smp->type = SMP_T_UINT;
3005 smp->data.uint = 0;
Willy Tarreaucf477632013-07-23 16:04:37 +02003006 if (stkctr->entry != NULL) {
3007 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_HTTP_REQ_RATE);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003008 if (!ptr)
3009 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003010 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, http_req_rate),
Willy Tarreaucf477632013-07-23 16:04:37 +02003011 stkctr->table->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003012 }
3013 return 1;
3014}
3015
Willy Tarreau30d07c32013-07-23 16:45:38 +02003016/* set <smp> to the cumulated number of HTTP requests errors from the session's
3017 * tracked frontend counters. Supports being called as "sc[0-9]_http_err_cnt" or
3018 * "src_http_err_cnt" only.
3019 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02003020static int
Willy Tarreau30d07c32013-07-23 16:45:38 +02003021smp_fetch_sc_http_err_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3022 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02003023{
Willy Tarreau30d07c32013-07-23 16:45:38 +02003024 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3025
3026 if (!stkctr)
3027 return 0;
3028
Willy Tarreau37406352012-04-23 16:16:37 +02003029 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003030 smp->type = SMP_T_UINT;
3031 smp->data.uint = 0;
Willy Tarreau30d07c32013-07-23 16:45:38 +02003032 if (stkctr->entry != NULL) {
3033 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_HTTP_ERR_CNT);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003034 if (!ptr)
3035 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003036 smp->data.uint = stktable_data_cast(ptr, http_err_cnt);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003037 }
3038 return 1;
3039}
3040
Willy Tarreau9daf2622013-07-23 16:48:54 +02003041/* set <smp> to the HTTP request error rate from the session's tracked frontend
3042 * counters. Supports being called as "sc[0-9]_http_err_rate" or
3043 * "src_http_err_rate" only.
3044 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02003045static int
Willy Tarreau9daf2622013-07-23 16:48:54 +02003046smp_fetch_sc_http_err_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3047 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02003048{
Willy Tarreau9daf2622013-07-23 16:48:54 +02003049 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3050
3051 if (!stkctr)
3052 return 0;
3053
Willy Tarreau37406352012-04-23 16:16:37 +02003054 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003055 smp->type = SMP_T_UINT;
3056 smp->data.uint = 0;
Willy Tarreau9daf2622013-07-23 16:48:54 +02003057 if (stkctr->entry != NULL) {
3058 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_HTTP_ERR_RATE);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003059 if (!ptr)
3060 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003061 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, http_err_rate),
Willy Tarreau9daf2622013-07-23 16:48:54 +02003062 stkctr->table->data_arg[STKTABLE_DT_HTTP_ERR_RATE].u);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003063 }
3064 return 1;
3065}
3066
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003067/* set <smp> to the number of kbytes received from clients, as found in the
3068 * session's tracked frontend counters. Supports being called as
3069 * "sc[0-9]_kbytes_in" or "src_kbytes_in" only.
3070 */
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003071static int
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003072smp_fetch_sc_kbytes_in(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3073 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003074{
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003075 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3076
3077 if (!stkctr)
3078 return 0;
3079
Willy Tarreau37406352012-04-23 16:16:37 +02003080 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003081 smp->type = SMP_T_UINT;
3082 smp->data.uint = 0;
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003083 if (stkctr->entry != NULL) {
3084 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_BYTES_IN_CNT);
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003085 if (!ptr)
3086 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003087 smp->data.uint = stktable_data_cast(ptr, bytes_in_cnt) >> 10;
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003088 }
3089 return 1;
3090}
3091
Willy Tarreau613fe992013-07-23 17:39:19 +02003092/* set <smp> to the data rate received from clients in bytes/s, as found
3093 * in the session's tracked frontend counters. Supports being called as
3094 * "sc[0-9]_bytes_in_rate" or "src_bytes_in_rate" only.
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003095 */
3096static int
Willy Tarreau613fe992013-07-23 17:39:19 +02003097smp_fetch_sc_bytes_in_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3098 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003099{
Willy Tarreau613fe992013-07-23 17:39:19 +02003100 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3101
3102 if (!stkctr)
3103 return 0;
3104
Willy Tarreau37406352012-04-23 16:16:37 +02003105 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003106 smp->type = SMP_T_UINT;
3107 smp->data.uint = 0;
Willy Tarreau613fe992013-07-23 17:39:19 +02003108 if (stkctr->entry != NULL) {
3109 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_BYTES_IN_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003110 if (!ptr)
3111 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003112 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, bytes_in_rate),
Willy Tarreau613fe992013-07-23 17:39:19 +02003113 stkctr->table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003114 }
3115 return 1;
3116}
3117
Willy Tarreau53aea102013-07-23 17:39:02 +02003118/* set <smp> to the number of kbytes sent to clients, as found in the
3119 * session's tracked frontend counters. Supports being called as
3120 * "sc[0-9]_kbytes_out" or "src_kbytes_out" only.
3121 */
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003122static int
Willy Tarreau53aea102013-07-23 17:39:02 +02003123smp_fetch_sc_kbytes_out(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3124 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003125{
Willy Tarreau53aea102013-07-23 17:39:02 +02003126 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3127
3128 if (!stkctr)
3129 return 0;
3130
Willy Tarreau37406352012-04-23 16:16:37 +02003131 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003132 smp->type = SMP_T_UINT;
3133 smp->data.uint = 0;
Willy Tarreau53aea102013-07-23 17:39:02 +02003134 if (stkctr->entry != NULL) {
3135 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_BYTES_OUT_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003136 if (!ptr)
3137 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003138 smp->data.uint = stktable_data_cast(ptr, bytes_out_cnt) >> 10;
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003139 }
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003140 return 1;
3141}
3142
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003143/* set <smp> to the data rate sent to clients in bytes/s, as found in the
3144 * session's tracked frontend counters. Supports being called as
3145 * "sc[0-9]_bytes_out_rate" or "src_bytes_out_rate" only.
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003146 */
3147static int
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003148smp_fetch_sc_bytes_out_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3149 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003150{
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003151 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3152
3153 if (!stkctr)
3154 return 0;
3155
Willy Tarreau37406352012-04-23 16:16:37 +02003156 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003157 smp->type = SMP_T_UINT;
3158 smp->data.uint = 0;
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003159 if (stkctr->entry != NULL) {
3160 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_BYTES_OUT_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003161 if (!ptr)
3162 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003163 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, bytes_out_rate),
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003164 stkctr->table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003165 }
3166 return 1;
3167}
3168
Willy Tarreau563eef42013-07-23 18:32:02 +02003169/* set <smp> to the number of active trackers on the SC entry in the session's
3170 * tracked frontend counters. Supports being called as "sc[0-9]_trackers" only.
3171 */
Willy Tarreau2406db42012-12-09 12:16:43 +01003172static int
Willy Tarreau563eef42013-07-23 18:32:02 +02003173smp_fetch_sc_trackers(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02003174 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau2406db42012-12-09 12:16:43 +01003175{
Willy Tarreau563eef42013-07-23 18:32:02 +02003176 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
Willy Tarreau2406db42012-12-09 12:16:43 +01003177
Willy Tarreau563eef42013-07-23 18:32:02 +02003178 if (!stkctr)
Willy Tarreau2406db42012-12-09 12:16:43 +01003179 return 0;
3180
Willy Tarreau563eef42013-07-23 18:32:02 +02003181 smp->flags = SMP_F_VOL_TEST;
3182 smp->type = SMP_T_UINT;
3183 smp->data.uint = stkctr->entry->ref_cnt;
3184 return 1;
Willy Tarreaue25c9172013-05-28 18:32:20 +02003185}
3186
Willy Tarreau34db1082012-04-19 17:16:54 +02003187/* set temp integer to the number of used entries in the table pointed to by expr.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02003188 * Accepts exactly 1 argument of type table.
Willy Tarreau34db1082012-04-19 17:16:54 +02003189 */
Willy Tarreauc735a072011-03-29 00:57:02 +02003190static int
Willy Tarreau281c7992013-01-08 01:23:27 +01003191smp_fetch_table_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02003192 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc735a072011-03-29 00:57:02 +02003193{
Willy Tarreau37406352012-04-23 16:16:37 +02003194 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003195 smp->type = SMP_T_UINT;
Willy Tarreau24e32d82012-04-23 23:55:44 +02003196 smp->data.uint = args->data.prx->table.current;
Willy Tarreauc735a072011-03-29 00:57:02 +02003197 return 1;
3198}
3199
Willy Tarreau34db1082012-04-19 17:16:54 +02003200/* set temp integer to the number of free entries in the table pointed to by expr.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02003201 * Accepts exactly 1 argument of type table.
Willy Tarreau34db1082012-04-19 17:16:54 +02003202 */
Willy Tarreauc735a072011-03-29 00:57:02 +02003203static int
Willy Tarreau281c7992013-01-08 01:23:27 +01003204smp_fetch_table_avl(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02003205 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc735a072011-03-29 00:57:02 +02003206{
Willy Tarreau24e32d82012-04-23 23:55:44 +02003207 px = args->data.prx;
Willy Tarreau37406352012-04-23 16:16:37 +02003208 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003209 smp->type = SMP_T_UINT;
3210 smp->data.uint = px->table.size - px->table.current;
Willy Tarreauc735a072011-03-29 00:57:02 +02003211 return 1;
3212}
Willy Tarreau8b22a712010-06-18 17:46:06 +02003213
Willy Tarreau61612d42012-04-19 18:42:05 +02003214/* Note: must not be declared <const> as its list will be overwritten.
3215 * Please take care of keeping this list alphabetically sorted.
3216 */
Willy Tarreaudc13c112013-06-21 23:16:39 +02003217static struct acl_kw_list acl_kws = {ILH, {
Willy Tarreau281c7992013-01-08 01:23:27 +01003218 { /* END */ },
Willy Tarreau8b22a712010-06-18 17:46:06 +02003219}};
3220
Willy Tarreau281c7992013-01-08 01:23:27 +01003221/* Note: must not be declared <const> as its list will be overwritten.
3222 * Please take care of keeping this list alphabetically sorted.
3223 */
Willy Tarreaudc13c112013-06-21 23:16:39 +02003224static struct sample_fetch_kw_list smp_fetch_keywords = {ILH, {
Willy Tarreau0f791d42013-07-23 19:56:43 +02003225 { "sc_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3226 { "sc_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3227 { "sc_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3228 { "sc_conn_cnt", smp_fetch_sc_conn_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3229 { "sc_conn_cur", smp_fetch_sc_conn_cur, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3230 { "sc_conn_rate", smp_fetch_sc_conn_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3231 { "sc_get_gpc0", smp_fetch_sc_get_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3232 { "sc_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3233 { "sc_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3234 { "sc_http_err_rate", smp_fetch_sc_http_err_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3235 { "sc_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3236 { "sc_http_req_rate", smp_fetch_sc_http_req_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3237 { "sc_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3238 { "sc_kbytes_in", smp_fetch_sc_kbytes_in, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3239 { "sc_kbytes_out", smp_fetch_sc_kbytes_out, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3240 { "sc_sess_cnt", smp_fetch_sc_sess_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3241 { "sc_sess_rate", smp_fetch_sc_sess_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3242 { "sc_tracked", smp_fetch_sc_tracked, ARG2(1,UINT,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3243 { "sc_trackers", smp_fetch_sc_trackers, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3244 { "sc0_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3245 { "sc0_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3246 { "sc0_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3247 { "sc0_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3248 { "sc0_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3249 { "sc0_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3250 { "sc0_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3251 { "sc0_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3252 { "sc0_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3253 { "sc0_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3254 { "sc0_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3255 { "sc0_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3256 { "sc0_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3257 { "sc0_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3258 { "sc0_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3259 { "sc0_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3260 { "sc0_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3261 { "sc0_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3262 { "sc0_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3263 { "sc1_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3264 { "sc1_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3265 { "sc1_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3266 { "sc1_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3267 { "sc1_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3268 { "sc1_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3269 { "sc1_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3270 { "sc1_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3271 { "sc1_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3272 { "sc1_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3273 { "sc1_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3274 { "sc1_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3275 { "sc1_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3276 { "sc1_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3277 { "sc1_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3278 { "sc1_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3279 { "sc1_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3280 { "sc1_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3281 { "sc1_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3282 { "sc2_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3283 { "sc2_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3284 { "sc2_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3285 { "sc2_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3286 { "sc2_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3287 { "sc2_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3288 { "sc2_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3289 { "sc2_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3290 { "sc2_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3291 { "sc2_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3292 { "sc2_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3293 { "sc2_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3294 { "sc2_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3295 { "sc2_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3296 { "sc2_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3297 { "sc2_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3298 { "sc2_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3299 { "sc2_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3300 { "sc2_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3301 { "src_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3302 { "src_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3303 { "src_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3304 { "src_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3305 { "src_conn_cur", smp_fetch_sc_conn_cur, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3306 { "src_conn_rate", smp_fetch_sc_conn_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3307 { "src_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3308 { "src_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3309 { "src_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3310 { "src_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3311 { "src_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3312 { "src_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3313 { "src_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3314 { "src_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3315 { "src_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3316 { "src_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3317 { "src_sess_rate", smp_fetch_sc_sess_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3318 { "src_updt_conn_cnt", smp_fetch_src_updt_conn_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3319 { "table_avl", smp_fetch_table_avl, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3320 { "table_cnt", smp_fetch_table_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
Willy Tarreau281c7992013-01-08 01:23:27 +01003321 { /* END */ },
3322}};
3323
Willy Tarreau8b22a712010-06-18 17:46:06 +02003324__attribute__((constructor))
3325static void __session_init(void)
3326{
Willy Tarreau281c7992013-01-08 01:23:27 +01003327 sample_register_fetches(&smp_fetch_keywords);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003328 acl_register_keywords(&acl_kws);
3329}
3330
Willy Tarreaubaaee002006-06-26 02:48:02 +02003331/*
3332 * Local variables:
3333 * c-indent-level: 8
3334 * c-basic-offset: 8
3335 * End:
3336 */