blob: c86df3c47a96b7555b571e9122c09b4e8168dd91 [file] [log] [blame]
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{
75 struct proxy *p = l->frontend;
76 struct session *s;
Willy Tarreau81f9aa32010-06-01 17:45:26 +020077 struct task *t;
Willy Tarreauabe8ea52010-11-11 10:56:04 +010078 int ret;
79
80
81 ret = -1; /* assume unrecoverable error by default */
Willy Tarreau81f9aa32010-06-01 17:45:26 +020082
Willy Tarreaufffe1322010-11-11 09:48:16 +010083 if (unlikely((s = pool_alloc2(pool2_session)) == NULL))
Willy Tarreau81f9aa32010-06-01 17:45:26 +020084 goto out_close;
Willy Tarreau81f9aa32010-06-01 17:45:26 +020085
Willy Tarreauf2943dc2012-10-26 20:10:28 +020086 if (unlikely((s->si[0].conn = pool_alloc2(pool2_connection)) == NULL))
87 goto out_fail_conn0;
88
89 if (unlikely((s->si[1].conn = pool_alloc2(pool2_connection)) == NULL))
90 goto out_fail_conn1;
91
Willy Tarreau2542b532012-08-31 16:01:23 +020092 /* minimum session initialization required for an embryonic session is
93 * fairly low. We need very little to execute L4 ACLs, then we need a
94 * task to make the client-side connection live on its own.
95 * - flags
96 * - stick-entry tracking
97 */
Willy Tarreau81f9aa32010-06-01 17:45:26 +020098 s->flags = 0;
99 s->logs.logwait = p->to_log;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200100 s->logs.level = 0;
Willy Tarreaud5ca9ab2013-05-28 17:40:25 +0200101
102 memset(s->stkctr, 0, sizeof(s->stkctr));
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200103
Willy Tarreau2542b532012-08-31 16:01:23 +0200104 s->listener = l;
105 s->fe = p;
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100106
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200107 /* OK, we're keeping the session, so let's properly initialize the session */
Willy Tarreau1e6902f2013-09-29 10:47:38 +0200108 s->si[0].conn->obj_type = OBJ_TYPE_CONN;
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200109 s->si[0].conn->t.sock.fd = cfd;
110 s->si[0].conn->ctrl = l->proto;
Willy Tarreau38d58922013-11-16 00:15:40 +0100111 s->si[0].conn->flags = CO_FL_NONE | CO_FL_ADDR_FROM_SET;
Willy Tarreau14cba4b2012-11-30 17:33:05 +0100112 s->si[0].conn->err_code = CO_ER_NONE;
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200113 s->si[0].conn->addr.from = *addr;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100114 s->si[0].conn->target = &l->obj_type;
Willy Tarreau2542b532012-08-31 16:01:23 +0200115
Willy Tarreau1e6902f2013-09-29 10:47:38 +0200116 /* FIXME: this should be replaced with OBJ_TYPE_NONE once all users check the
117 * object type before dereferencing the connection pointer.
118 */
119 s->si[1].conn->obj_type = OBJ_TYPE_CONN;
120
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200121 s->logs.accept_date = date; /* user-visible date for logging */
122 s->logs.tv_accept = now; /* corrected date for internal use */
123 s->uniq_id = totalconn;
Willy Tarreau2542b532012-08-31 16:01:23 +0200124 p->feconn++;
125 /* This session was accepted, count it now */
126 if (p->feconn > p->fe_counters.conn_max)
127 p->fe_counters.conn_max = p->feconn;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200128
Willy Tarreau2542b532012-08-31 16:01:23 +0200129 proxy_inc_fe_conn_ctr(l, p);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200130
131 /* now evaluate the tcp-request layer4 rules. Since we expect to be able
132 * to abort right here as soon as possible, we check the rules before
133 * even initializing the stream interfaces.
134 */
135 if ((l->options & LI_O_TCP_RULES) && !tcp_exec_req_rules(s)) {
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200136 /* let's do a no-linger now to close with a single RST. */
137 setsockopt(cfd, SOL_SOCKET, SO_LINGER, (struct linger *) &nolinger, sizeof(struct linger));
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100138 ret = 0; /* successful termination */
Willy Tarreau2542b532012-08-31 16:01:23 +0200139 goto out_free_session;
140 }
141
Willy Tarreau1bc4aab2012-10-08 20:11:03 +0200142#ifndef USE_ACCEPT4
143 /* Adjust some socket options if the connection was accepted by a plain
144 * accept() syscall.
145 */
Willy Tarreau82569f92012-09-27 23:48:56 +0200146 if (unlikely(fcntl(cfd, F_SETFL, O_NONBLOCK) == -1))
147 goto out_free_session;
Willy Tarreau1bc4aab2012-10-08 20:11:03 +0200148#endif
Willy Tarreau82569f92012-09-27 23:48:56 +0200149
150 /* monitor-net and health mode are processed immediately after TCP
151 * connection rules. This way it's possible to block them, but they
152 * never use the lower data layers, they send directly over the socket,
153 * as they were designed for. We first flush the socket receive buffer
154 * in order to avoid emission of an RST by the system. We ignore any
155 * error.
156 */
157 if (unlikely((p->mode == PR_MODE_HEALTH) ||
158 ((l->options & LI_O_CHK_MONNET) &&
159 addr->ss_family == AF_INET &&
160 (((struct sockaddr_in *)addr)->sin_addr.s_addr & p->mon_mask.s_addr) == p->mon_net.s_addr))) {
161 /* we have 4 possibilities here :
162 * - HTTP mode, from monitoring address => send "HTTP/1.0 200 OK"
163 * - HEALTH mode with HTTP check => send "HTTP/1.0 200 OK"
164 * - HEALTH mode without HTTP check => just send "OK"
165 * - TCP mode from monitoring address => just close
166 */
Willy Tarreau2b57cb82013-06-10 19:56:38 +0200167 if (l->proto->drain)
168 l->proto->drain(cfd);
Willy Tarreau82569f92012-09-27 23:48:56 +0200169 if (p->mode == PR_MODE_HTTP ||
170 (p->mode == PR_MODE_HEALTH && (p->options2 & PR_O2_CHK_ANY) == PR_O2_HTTP_CHK))
171 send(cfd, "HTTP/1.0 200 OK\r\n\r\n", 19, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_MORE);
172 else if (p->mode == PR_MODE_HEALTH)
173 send(cfd, "OK\n", 3, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_MORE);
174 ret = 0;
175 goto out_free_session;
176 }
177
178
Willy Tarreau22cda212012-08-31 17:43:29 +0200179 /* wait for a PROXY protocol header */
180 if (l->options & LI_O_ACC_PROXY) {
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200181 s->si[0].conn->flags |= CO_FL_ACCEPT_PROXY;
182 conn_sock_want_recv(s->si[0].conn);
Willy Tarreau22cda212012-08-31 17:43:29 +0200183 }
184
Willy Tarreau2542b532012-08-31 16:01:23 +0200185 if (unlikely((t = task_new()) == NULL))
186 goto out_free_session;
187
188 t->context = s;
189 t->nice = l->nice;
190 s->task = t;
191
Willy Tarreauf7bc57c2012-10-03 00:19:48 +0200192 /* Add the various callbacks. Right now the transport layer is present
193 * but not initialized. Also note we need to be careful as the stream
194 * int is not initialized yet.
Willy Tarreau2542b532012-08-31 16:01:23 +0200195 */
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200196 conn_prepare(s->si[0].conn, &sess_conn_cb, l->proto, l->xprt, s);
Willy Tarreau2542b532012-08-31 16:01:23 +0200197
198 /* finish initialization of the accepted file descriptor */
199 fd_insert(cfd);
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200200 fdtab[cfd].owner = s->si[0].conn;
Willy Tarreau2542b532012-08-31 16:01:23 +0200201 fdtab[cfd].iocb = conn_fd_handler;
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200202 conn_data_want_recv(s->si[0].conn);
203 if (conn_xprt_init(s->si[0].conn) < 0)
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100204 goto out_free_task;
Willy Tarreau2542b532012-08-31 16:01:23 +0200205
206 /* OK, now either we have a pending handshake to execute with and
207 * then we must return to the I/O layer, or we can proceed with the
208 * end of the session initialization. In case of handshake, we also
209 * set the I/O timeout to the frontend's client timeout.
210 */
211
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200212 if (s->si[0].conn->flags & CO_FL_HANDSHAKE) {
Willy Tarreau2542b532012-08-31 16:01:23 +0200213 t->process = expire_mini_session;
214 t->expire = tick_add_ifset(now_ms, p->timeout.client);
215 task_queue(t);
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200216 s->si[0].conn->flags |= CO_FL_INIT_DATA | CO_FL_WAKE_DATA;
Willy Tarreau2542b532012-08-31 16:01:23 +0200217 return 1;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200218 }
219
Willy Tarreau815f5ec2012-11-06 00:14:25 +0100220 /* OK let's complete session initialization since there is no handshake */
221 s->si[0].conn->flags |= CO_FL_CONNECTED;
Willy Tarreau2542b532012-08-31 16:01:23 +0200222 ret = session_complete(s);
223 if (ret > 0)
224 return ret;
225
226 /* Error unrolling */
227 out_free_task:
228 task_free(t);
229 out_free_session:
230 p->feconn--;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100231 if (s->stkctr[0].entry || s->stkctr[1].entry)
Willy Tarreau2542b532012-08-31 16:01:23 +0200232 session_store_counters(s);
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200233 pool_free2(pool2_connection, s->si[1].conn);
234 out_fail_conn1:
235 pool_free2(pool2_connection, s->si[0].conn);
236 out_fail_conn0:
Willy Tarreau2542b532012-08-31 16:01:23 +0200237 pool_free2(pool2_session, s);
238 out_close:
Willy Tarreauf7bc57c2012-10-03 00:19:48 +0200239 if (ret < 0 && l->xprt == &raw_sock && p->mode == PR_MODE_HTTP) {
Willy Tarreau2542b532012-08-31 16:01:23 +0200240 /* critical error, no more memory, try to emit a 500 response */
Willy Tarreau05bf5e12013-10-20 23:10:28 +0200241 struct chunk *err_msg = &p->errmsg[HTTP_ERR_500];
242 if (!err_msg->str)
243 err_msg = &http_err_chunks[HTTP_ERR_500];
Willy Tarreau2542b532012-08-31 16:01:23 +0200244 send(cfd, err_msg->str, err_msg->len, MSG_DONTWAIT|MSG_NOSIGNAL);
245 }
246
247 if (fdtab[cfd].owner)
248 fd_delete(cfd);
249 else
250 close(cfd);
251 return ret;
252}
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100253
Willy Tarreau0af29122012-12-03 15:35:00 +0100254
255/* prepare the trash with a log prefix for session <s> */
256static void prepare_mini_sess_log_prefix(struct session *s)
257{
258 struct tm tm;
259 char pn[INET6_ADDRSTRLEN];
260 int ret;
261 char *end;
262
263 ret = addr_to_str(&s->si[0].conn->addr.from, pn, sizeof(pn));
264 if (ret <= 0)
265 chunk_printf(&trash, "unknown [");
266 else if (ret == AF_UNIX)
267 chunk_printf(&trash, "%s:%d [", pn, s->listener->luid);
268 else
269 chunk_printf(&trash, "%s:%d [", pn, get_host_port(&s->si[0].conn->addr.from));
270
271 get_localtime(s->logs.accept_date.tv_sec, &tm);
272 end = date2str_log(trash.str + trash.len, &tm, &(s->logs.accept_date), trash.size - trash.len);
273 trash.len = end - trash.str;
274 if (s->listener->name)
275 chunk_appendf(&trash, "] %s/%s", s->fe->id, s->listener->name);
276 else
277 chunk_appendf(&trash, "] %s/%d", s->fe->id, s->listener->luid);
278}
279
Willy Tarreau2542b532012-08-31 16:01:23 +0200280/* This function kills an existing embryonic session. It stops the connection's
Willy Tarreauf7bc57c2012-10-03 00:19:48 +0200281 * transport layer, releases assigned resources, resumes the listener if it was
Willy Tarreau2542b532012-08-31 16:01:23 +0200282 * disabled and finally kills the file descriptor.
283 */
284static void kill_mini_session(struct session *s)
285{
Willy Tarreau0af29122012-12-03 15:35:00 +0100286 int level = LOG_INFO;
287 struct connection *conn = s->si[0].conn;
288 unsigned int log = s->logs.logwait;
289 const char *err_msg;
290
291 if (s->fe->options2 & PR_O2_LOGERRORS)
292 level = LOG_ERR;
293
294 if (log && (s->fe->options & PR_O_NULLNOLOG)) {
295 /* with "option dontlognull", we don't log connections with no transfer */
Willy Tarreau8e3bf692012-12-03 15:41:18 +0100296 if (!conn->err_code ||
Willy Tarreau20879a02012-12-03 16:32:10 +0100297 conn->err_code == CO_ER_PRX_EMPTY || conn->err_code == CO_ER_PRX_ABORT ||
298 conn->err_code == CO_ER_SSL_EMPTY || conn->err_code == CO_ER_SSL_ABORT)
Willy Tarreau0af29122012-12-03 15:35:00 +0100299 log = 0;
300 }
301
302 if (log) {
303 if (!conn->err_code && (s->task->state & TASK_WOKEN_TIMER)) {
304 if (conn->flags & CO_FL_ACCEPT_PROXY)
305 conn->err_code = CO_ER_PRX_TIMEOUT;
306 else if (conn->flags & CO_FL_SSL_WAIT_HS)
307 conn->err_code = CO_ER_SSL_TIMEOUT;
308 }
309
310 prepare_mini_sess_log_prefix(s);
311 err_msg = conn_err_code_str(conn);
312 if (err_msg)
313 send_log(s->fe, level, "%s: %s\n", trash.str, err_msg);
314 else
315 send_log(s->fe, level, "%s: unknown connection error (code=%d flags=%08x)\n",
316 trash.str, conn->err_code, conn->flags);
317 }
318
Willy Tarreau2542b532012-08-31 16:01:23 +0200319 /* kill the connection now */
Willy Tarreau2b199c92012-11-23 17:32:21 +0100320 conn_full_close(s->si[0].conn);
Willy Tarreau2542b532012-08-31 16:01:23 +0200321
322 s->fe->feconn--;
Willy Tarreau7af7d592013-07-01 18:07:03 +0200323 session_store_counters(s);
Willy Tarreau2542b532012-08-31 16:01:23 +0200324
325 if (!(s->listener->options & LI_O_UNLIMITED))
326 actconn--;
327 jobs--;
328 s->listener->nbconn--;
329 if (s->listener->state == LI_FULL)
330 resume_listener(s->listener);
331
332 /* Dequeues all of the listeners waiting for a resource */
333 if (!LIST_ISEMPTY(&global_listener_queue))
334 dequeue_all_listeners(&global_listener_queue);
335
336 if (!LIST_ISEMPTY(&s->fe->listener_queue) &&
337 (!s->fe->fe_sps_lim || freq_ctr_remain(&s->fe->fe_sess_per_sec, s->fe->fe_sps_lim, 0) > 0))
338 dequeue_all_listeners(&s->fe->listener_queue);
339
340 task_delete(s->task);
341 task_free(s->task);
342
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200343 pool_free2(pool2_connection, s->si[1].conn);
344 pool_free2(pool2_connection, s->si[0].conn);
Willy Tarreau2542b532012-08-31 16:01:23 +0200345 pool_free2(pool2_session, s);
346}
347
Willy Tarreau22cda212012-08-31 17:43:29 +0200348/* Finish initializing a session from a connection, or kills it if the
349 * connection shows and error. Returns <0 if the connection was killed.
Willy Tarreau2542b532012-08-31 16:01:23 +0200350 */
Willy Tarreau071e1372012-10-03 01:39:48 +0200351static int conn_session_complete(struct connection *conn)
Willy Tarreau2542b532012-08-31 16:01:23 +0200352{
Willy Tarreau5e75e272012-10-02 21:21:20 +0200353 struct session *s = conn->owner;
Willy Tarreau2542b532012-08-31 16:01:23 +0200354
Willy Tarreau22cda212012-08-31 17:43:29 +0200355 if (!(conn->flags & CO_FL_ERROR) && (session_complete(s) > 0)) {
Willy Tarreau071e1372012-10-03 01:39:48 +0200356 conn->flags &= ~CO_FL_INIT_DATA;
Willy Tarreau2542b532012-08-31 16:01:23 +0200357 return 0;
358 }
359
360 /* kill the connection now */
361 kill_mini_session(s);
362 return -1;
363}
364
Willy Tarreau9683e9a2012-10-03 21:17:23 +0200365/* Update an embryonic session status. The connection is killed in case of
366 * error, and <0 will be returned. Otherwise it does nothing.
367 */
368static int conn_session_update(struct connection *conn)
369{
370 if (conn->flags & CO_FL_ERROR) {
371 kill_mini_session(conn->owner);
372 return -1;
373 }
374 return 0;
375}
376
Willy Tarreau2542b532012-08-31 16:01:23 +0200377/* Manages embryonic sessions timeout. It is only called when the timeout
378 * strikes and performs the required cleanup.
379 */
380static struct task *expire_mini_session(struct task *t)
381{
382 struct session *s = t->context;
383
384 if (!(t->state & TASK_WOKEN_TIMER))
385 return t;
386
387 kill_mini_session(s);
388 return NULL;
389}
390
391/* This function is called from the I/O handler which detects the end of
392 * handshake, in order to complete initialization of a valid session. It must
393 * be called with an embryonic session. It returns a positive value upon
394 * success, 0 if the connection can be ignored, or a negative value upon
395 * critical failure. The accepted file descriptor is closed if we return <= 0.
396 */
397int session_complete(struct session *s)
398{
399 struct listener *l = s->listener;
400 struct proxy *p = s->fe;
401 struct http_txn *txn;
402 struct task *t = s->task;
403 int ret;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100404 int i;
Willy Tarreau2542b532012-08-31 16:01:23 +0200405
406 ret = -1; /* assume unrecoverable error by default */
407
408 /* OK, we're keeping the session, so let's properly initialize the session */
409 LIST_ADDQ(&sessions, &s->list);
410 LIST_INIT(&s->back_refs);
Willy Tarreau5e75e272012-10-02 21:21:20 +0200411 si_takeover_conn(&s->si[0], l->proto, l->xprt);
Willy Tarreau2542b532012-08-31 16:01:23 +0200412 s->flags |= SN_INITIALIZED;
413
414 s->unique_id = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200415
416 t->process = l->handler;
417 t->context = s;
418 t->expire = TICK_ETERNITY;
419
420 /* Note: initially, the session's backend points to the frontend.
421 * This changes later when switching rules are executed or
422 * when the default backend is assigned.
423 */
424 s->be = s->fe;
425 s->req = s->rep = NULL; /* will be allocated later */
William Lallemand82fe75c2012-10-23 10:25:10 +0200426 s->comp_algo = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200427
428 /* Let's count a session now */
Willy Tarreaub36b4242010-06-04 20:59:39 +0200429 proxy_inc_fe_sess_ctr(l, p);
Willy Tarreau91c43d72010-06-20 11:19:22 +0200430
Willy Tarreaub4c84932013-07-23 19:15:30 +0200431 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200432 void *ptr;
433
Willy Tarreau20d46a52012-12-09 15:55:40 +0100434 if (!s->stkctr[i].entry)
435 continue;
436
437 ptr = stktable_data_ptr(s->stkctr[i].table, s->stkctr[i].entry, STKTABLE_DT_SESS_CNT);
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200438 if (ptr)
439 stktable_data_cast(ptr, sess_cnt)++;
440
Willy Tarreau20d46a52012-12-09 15:55:40 +0100441 ptr = stktable_data_ptr(s->stkctr[i].table, s->stkctr[i].entry, STKTABLE_DT_SESS_RATE);
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200442 if (ptr)
443 update_freq_ctr_period(&stktable_data_cast(ptr, sess_rate),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100444 s->stkctr[i].table->data_arg[STKTABLE_DT_SESS_RATE].u, 1);
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200445 }
446
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200447 /* this part should be common with other protocols */
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200448 s->si[0].owner = t;
449 s->si[0].state = s->si[0].prev_state = SI_ST_EST;
450 s->si[0].err_type = SI_ET_NONE;
Willy Tarreau63e7fe32012-05-08 15:20:43 +0200451 s->si[0].send_proxy_ofs = 0;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200452 s->si[0].exp = TICK_ETERNITY;
453 s->si[0].flags = SI_FL_NONE;
454
455 if (likely(s->fe->options2 & PR_O2_INDEPSTR))
456 s->si[0].flags |= SI_FL_INDEP_STR;
457
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200458 /* pre-initialize the other side's stream interface to an INIT state. The
459 * callbacks will be initialized before attempting to connect.
460 */
Willy Tarreau1e6902f2013-09-29 10:47:38 +0200461 s->si[1].conn->obj_type = OBJ_TYPE_CONN;
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200462 s->si[1].conn->t.sock.fd = -1; /* just to help with debugging */
463 s->si[1].conn->flags = CO_FL_NONE;
Willy Tarreau14cba4b2012-11-30 17:33:05 +0100464 s->si[1].conn->err_code = CO_ER_NONE;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200465 s->si[1].owner = t;
466 s->si[1].state = s->si[1].prev_state = SI_ST_INI;
467 s->si[1].err_type = SI_ET_NONE;
Willy Tarreau0b3a4112011-03-27 19:16:56 +0200468 s->si[1].conn_retries = 0; /* used for logging too */
Willy Tarreau63e7fe32012-05-08 15:20:43 +0200469 s->si[1].send_proxy_ofs = 0;
Willy Tarreau372d6702013-09-29 17:19:56 +0200470 si_prepare_none(&s->si[1]);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200471 s->si[1].exp = TICK_ETERNITY;
472 s->si[1].flags = SI_FL_NONE;
473
474 if (likely(s->fe->options2 & PR_O2_INDEPSTR))
475 s->si[1].flags |= SI_FL_INDEP_STR;
476
Willy Tarreau9bd0d742011-07-20 00:17:39 +0200477 session_init_srv_conn(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100478 s->target = NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200479 s->pend_pos = NULL;
480
481 /* init store persistence */
482 s->store_count = 0;
483
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200484 if (unlikely((s->req = pool_alloc2(pool2_channel)) == NULL))
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200485 goto out_free_task; /* no memory */
486
Willy Tarreau9b28e032012-10-12 23:49:43 +0200487 if (unlikely((s->req->buf = pool_alloc2(pool2_buffer)) == NULL))
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200488 goto out_free_req; /* no memory */
489
Willy Tarreau9b28e032012-10-12 23:49:43 +0200490 if (unlikely((s->rep = pool_alloc2(pool2_channel)) == NULL))
491 goto out_free_req_buf; /* no memory */
492
493 if (unlikely((s->rep->buf = pool_alloc2(pool2_buffer)) == NULL))
494 goto out_free_rep; /* no memory */
495
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200496 /* initialize the request buffer */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200497 s->req->buf->size = global.tune.bufsize;
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200498 channel_init(s->req);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200499 s->req->prod = &s->si[0];
500 s->req->cons = &s->si[1];
501 s->si[0].ib = s->si[1].ob = s->req;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200502 s->req->flags |= CF_READ_ATTACHED; /* the producer is already connected */
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200503
504 /* activate default analysers enabled for this listener */
505 s->req->analysers = l->analysers;
506
507 s->req->wto = TICK_ETERNITY;
508 s->req->rto = TICK_ETERNITY;
509 s->req->rex = TICK_ETERNITY;
510 s->req->wex = TICK_ETERNITY;
511 s->req->analyse_exp = TICK_ETERNITY;
512
513 /* initialize response buffer */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200514 s->rep->buf->size = global.tune.bufsize;
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200515 channel_init(s->rep);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200516 s->rep->prod = &s->si[1];
517 s->rep->cons = &s->si[0];
518 s->si[0].ob = s->si[1].ib = s->rep;
519 s->rep->analysers = 0;
520
Willy Tarreau96e31212011-05-30 18:10:30 +0200521 if (s->fe->options2 & PR_O2_NODELAY) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200522 s->req->flags |= CF_NEVER_WAIT;
523 s->rep->flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200524 }
525
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200526 s->rep->rto = TICK_ETERNITY;
527 s->rep->wto = TICK_ETERNITY;
528 s->rep->rex = TICK_ETERNITY;
529 s->rep->wex = TICK_ETERNITY;
530 s->rep->analyse_exp = TICK_ETERNITY;
531
Willy Tarreau62f791e2012-03-09 11:32:30 +0100532 txn = &s->txn;
533 /* Those variables will be checked and freed if non-NULL in
534 * session.c:session_free(). It is important that they are
535 * properly initialized.
536 */
537 txn->sessid = NULL;
538 txn->srv_cookie = NULL;
539 txn->cli_cookie = NULL;
540 txn->uri = NULL;
541 txn->req.cap = NULL;
542 txn->rsp.cap = NULL;
543 txn->hdr_idx.v = NULL;
544 txn->hdr_idx.size = txn->hdr_idx.used = 0;
545 txn->req.flags = 0;
546 txn->rsp.flags = 0;
547 /* the HTTP messages need to know what buffer they're associated with */
Willy Tarreau394db372012-10-12 22:40:39 +0200548 txn->req.chn = s->req;
549 txn->rsp.chn = s->rep;
Willy Tarreau62f791e2012-03-09 11:32:30 +0100550
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200551 /* finish initialization of the accepted file descriptor */
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200552 conn_data_want_recv(s->si[0].conn);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200553
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100554 if (p->accept && (ret = p->accept(s)) <= 0) {
555 /* Either we had an unrecoverable error (<0) or work is
556 * finished (=0, eg: monitoring), in both situations,
557 * we can release everything and close.
558 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200559 goto out_free_rep_buf;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200560 }
561
Willy Tarreau93dbc2b2012-10-12 18:01:49 +0200562 /* if logs require transport layer information, note it on the connection */
563 if (s->logs.logwait & LW_XPRT)
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200564 s->si[0].conn->flags |= CO_FL_XPRT_TRACKED;
Willy Tarreau93dbc2b2012-10-12 18:01:49 +0200565
Willy Tarreau2542b532012-08-31 16:01:23 +0200566 /* we want the connection handler to notify the stream interface about updates. */
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200567 s->si[0].conn->flags |= CO_FL_WAKE_DATA;
Willy Tarreau2542b532012-08-31 16:01:23 +0200568
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200569 /* it is important not to call the wakeup function directly but to
570 * pass through task_wakeup(), because this one knows how to apply
571 * priorities to tasks.
572 */
573 task_wakeup(t, TASK_WOKEN_INIT);
574 return 1;
575
576 /* Error unrolling */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200577 out_free_rep_buf:
578 pool_free2(pool2_buffer, s->rep->buf);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200579 out_free_rep:
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200580 pool_free2(pool2_channel, s->rep);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200581 out_free_req_buf:
582 pool_free2(pool2_buffer, s->req->buf);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200583 out_free_req:
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200584 pool_free2(pool2_channel, s->req);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200585 out_free_task:
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100586 return ret;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200587}
588
Willy Tarreaubaaee002006-06-26 02:48:02 +0200589/*
590 * frees the context associated to a session. It must have been removed first.
591 */
Simon Hormandec5be42011-06-08 09:19:07 +0900592static void session_free(struct session *s)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200593{
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100594 struct http_txn *txn = &s->txn;
Willy Tarreau632f5a72007-07-11 10:42:35 +0200595 struct proxy *fe = s->fe;
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100596 struct bref *bref, *back;
Willy Tarreaua4cda672010-06-06 18:28:49 +0200597 int i;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100598
Willy Tarreaubaaee002006-06-26 02:48:02 +0200599 if (s->pend_pos)
600 pendconn_free(s->pend_pos);
Willy Tarreau922a8062008-12-04 09:33:58 +0100601
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100602 if (objt_server(s->target)) { /* there may be requests left pending in queue */
Willy Tarreau1e62de62008-11-11 20:20:02 +0100603 if (s->flags & SN_CURR_SESS) {
604 s->flags &= ~SN_CURR_SESS;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100605 objt_server(s->target)->cur_sess--;
Willy Tarreau1e62de62008-11-11 20:20:02 +0100606 }
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100607 if (may_dequeue_tasks(objt_server(s->target), s->be))
608 process_srv_queue(objt_server(s->target));
Willy Tarreau1e62de62008-11-11 20:20:02 +0100609 }
Willy Tarreau922a8062008-12-04 09:33:58 +0100610
Willy Tarreau7c669d72008-06-20 15:04:11 +0200611 if (unlikely(s->srv_conn)) {
612 /* the session still has a reserved slot on a server, but
613 * it should normally be only the same as the one above,
614 * so this should not happen in fact.
615 */
616 sess_change_server(s, NULL);
617 }
618
Willy Tarreau543db622012-11-15 16:41:22 +0100619 if (s->flags & SN_COMP_READY)
William Lallemand1c2d6222012-10-30 15:52:53 +0100620 s->comp_algo->end(&s->comp_ctx);
Willy Tarreau543db622012-11-15 16:41:22 +0100621 s->comp_algo = NULL;
622 s->flags &= ~SN_COMP_READY;
William Lallemand82fe75c2012-10-23 10:25:10 +0200623
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100624 if (s->req->pipe)
625 put_pipe(s->req->pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100626
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100627 if (s->rep->pipe)
628 put_pipe(s->rep->pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100629
Willy Tarreau9b28e032012-10-12 23:49:43 +0200630 pool_free2(pool2_buffer, s->req->buf);
631 pool_free2(pool2_buffer, s->rep->buf);
632
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200633 pool_free2(pool2_channel, s->req);
634 pool_free2(pool2_channel, s->rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200635
Willy Tarreau46023632010-01-07 22:51:47 +0100636 http_end_txn(s);
637
Willy Tarreau1e954912012-10-12 17:50:05 +0200638 /* ensure the client-side transport layer is destroyed */
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200639 s->si[0].conn->flags &= ~CO_FL_XPRT_TRACKED;
Willy Tarreau0ede5a32012-12-08 08:44:02 +0100640 conn_full_close(s->si[0].conn);
Willy Tarreau1e954912012-10-12 17:50:05 +0200641
Willy Tarreaua4cda672010-06-06 18:28:49 +0200642 for (i = 0; i < s->store_count; i++) {
643 if (!s->store[i].ts)
644 continue;
645 stksess_free(s->store[i].table, s->store[i].ts);
646 s->store[i].ts = NULL;
647 }
648
Willy Tarreau34eb6712011-10-24 18:15:04 +0200649 pool_free2(pool2_hdr_idx, txn->hdr_idx.v);
Willy Tarreau92fb9832007-10-16 17:34:28 +0200650 if (fe) {
Willy Tarreau46023632010-01-07 22:51:47 +0100651 pool_free2(fe->rsp_cap_pool, txn->rsp.cap);
652 pool_free2(fe->req_cap_pool, txn->req.cap);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200653 }
Willy Tarreau0937bc42009-12-22 15:03:09 +0100654
Willy Tarreau7af7d592013-07-01 18:07:03 +0200655 session_store_counters(s);
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +0200656
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100657 list_for_each_entry_safe(bref, back, &s->back_refs, users) {
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100658 /* we have to unlink all watchers. We must not relink them if
659 * this session was the last one in the list.
660 */
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100661 LIST_DEL(&bref->users);
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100662 LIST_INIT(&bref->users);
663 if (s->list.n != &sessions)
664 LIST_ADDQ(&LIST_ELEM(s->list.n, struct session *, list)->back_refs, &bref->users);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100665 bref->ref = s->list.n;
666 }
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100667 LIST_DEL(&s->list);
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200668 pool_free2(pool2_connection, s->si[1].conn);
669 pool_free2(pool2_connection, s->si[0].conn);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200670 pool_free2(pool2_session, s);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200671
672 /* We may want to free the maximum amount of pools if the proxy is stopping */
Willy Tarreau92fb9832007-10-16 17:34:28 +0200673 if (fe && unlikely(fe->state == PR_STSTOPPED)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200674 pool_flush2(pool2_buffer);
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200675 pool_flush2(pool2_channel);
Willy Tarreau34eb6712011-10-24 18:15:04 +0200676 pool_flush2(pool2_hdr_idx);
Willy Tarreau48d63db2008-08-03 17:41:33 +0200677 pool_flush2(pool2_requri);
678 pool_flush2(pool2_capture);
679 pool_flush2(pool2_session);
680 pool_flush2(fe->req_cap_pool);
681 pool_flush2(fe->rsp_cap_pool);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200682 }
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200683}
684
685
686/* perform minimal intializations, report 0 in case of error, 1 if OK. */
687int init_session()
688{
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100689 LIST_INIT(&sessions);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200690 pool2_session = create_pool("session", sizeof(struct session), MEM_F_SHARED);
691 return pool2_session != NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200692}
693
Willy Tarreau30e71012007-11-26 20:15:35 +0100694void session_process_counters(struct session *s)
695{
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100696 unsigned long long bytes;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100697 void *ptr;
698 int i;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100699
Willy Tarreau30e71012007-11-26 20:15:35 +0100700 if (s->req) {
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100701 bytes = s->req->total - s->logs.bytes_in;
Willy Tarreau30e71012007-11-26 20:15:35 +0100702 s->logs.bytes_in = s->req->total;
703 if (bytes) {
Willy Tarreau20d46a52012-12-09 15:55:40 +0100704 s->fe->fe_counters.bytes_in += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100705
Willy Tarreau20d46a52012-12-09 15:55:40 +0100706 s->be->be_counters.bytes_in += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100707
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100708 if (objt_server(s->target))
Willy Tarreau20d46a52012-12-09 15:55:40 +0100709 objt_server(s->target)->counters.bytes_in += bytes;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200710
711 if (s->listener->counters)
Willy Tarreau20d46a52012-12-09 15:55:40 +0100712 s->listener->counters->bytes_in += bytes;
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200713
Willy Tarreaub4c84932013-07-23 19:15:30 +0200714 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau20d46a52012-12-09 15:55:40 +0100715 if (!s->stkctr[i].entry)
716 continue;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200717
Willy Tarreau20d46a52012-12-09 15:55:40 +0100718 ptr = stktable_data_ptr(s->stkctr[i].table,
719 s->stkctr[i].entry,
720 STKTABLE_DT_BYTES_IN_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200721 if (ptr)
722 stktable_data_cast(ptr, bytes_in_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200723
Willy Tarreau20d46a52012-12-09 15:55:40 +0100724 ptr = stktable_data_ptr(s->stkctr[i].table,
725 s->stkctr[i].entry,
726 STKTABLE_DT_BYTES_IN_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200727 if (ptr)
728 update_freq_ctr_period(&stktable_data_cast(ptr, bytes_in_rate),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100729 s->stkctr[i].table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200730 }
Willy Tarreau30e71012007-11-26 20:15:35 +0100731 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100732 }
733
Willy Tarreau30e71012007-11-26 20:15:35 +0100734 if (s->rep) {
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100735 bytes = s->rep->total - s->logs.bytes_out;
Willy Tarreau30e71012007-11-26 20:15:35 +0100736 s->logs.bytes_out = s->rep->total;
737 if (bytes) {
Willy Tarreau20d46a52012-12-09 15:55:40 +0100738 s->fe->fe_counters.bytes_out += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100739
Willy Tarreau20d46a52012-12-09 15:55:40 +0100740 s->be->be_counters.bytes_out += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100741
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100742 if (objt_server(s->target))
Willy Tarreau20d46a52012-12-09 15:55:40 +0100743 objt_server(s->target)->counters.bytes_out += bytes;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200744
745 if (s->listener->counters)
Willy Tarreau20d46a52012-12-09 15:55:40 +0100746 s->listener->counters->bytes_out += bytes;
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200747
Willy Tarreaub4c84932013-07-23 19:15:30 +0200748 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau20d46a52012-12-09 15:55:40 +0100749 if (!s->stkctr[i].entry)
750 continue;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200751
Willy Tarreau20d46a52012-12-09 15:55:40 +0100752 ptr = stktable_data_ptr(s->stkctr[i].table,
753 s->stkctr[i].entry,
754 STKTABLE_DT_BYTES_OUT_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200755 if (ptr)
756 stktable_data_cast(ptr, bytes_out_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200757
Willy Tarreau20d46a52012-12-09 15:55:40 +0100758 ptr = stktable_data_ptr(s->stkctr[i].table,
759 s->stkctr[i].entry,
760 STKTABLE_DT_BYTES_OUT_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200761 if (ptr)
762 update_freq_ctr_period(&stktable_data_cast(ptr, bytes_out_rate),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100763 s->stkctr[i].table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200764 }
Willy Tarreau30e71012007-11-26 20:15:35 +0100765 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100766 }
767}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200768
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100769/* This function is called with (si->state == SI_ST_CON) meaning that a
770 * connection was attempted and that the file descriptor is already allocated.
771 * We must check for establishment, error and abort. Possible output states
772 * are SI_ST_EST (established), SI_ST_CER (error), SI_ST_DIS (abort), and
773 * SI_ST_CON (no change). The function returns 0 if it switches to SI_ST_CER,
774 * otherwise 1.
775 */
Simon Hormandec5be42011-06-08 09:19:07 +0900776static int sess_update_st_con_tcp(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100777{
Willy Tarreau7421efb2012-07-02 15:11:27 +0200778 struct channel *req = si->ob;
779 struct channel *rep = si->ib;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100780
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100781 /* If we got an error, or if nothing happened and the connection timed
782 * out, we must give up. The CER state handler will take care of retry
783 * attempts and error reports.
784 */
785 if (unlikely(si->flags & (SI_FL_EXP|SI_FL_ERR))) {
Willy Tarreaue3224e82012-10-29 22:41:31 +0100786 if (unlikely(si->ob->flags & CF_WRITE_PARTIAL)) {
787 /* Some data were sent past the connection establishment,
788 * so we need to pretend we're established to log correctly
789 * and let later states handle the failure.
790 */
791 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
792 si->exp = TICK_ETERNITY;
793 si->state = SI_ST_EST;
794 si->err_type = SI_ET_DATA_ERR;
795 si->ib->flags |= CF_READ_ERROR | CF_WRITE_ERROR;
Willy Tarreaue3224e82012-10-29 22:41:31 +0100796 return 1;
797 }
Willy Tarreau127334e2009-03-28 10:47:26 +0100798 si->exp = TICK_ETERNITY;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100799 si->state = SI_ST_CER;
Willy Tarreau0ede5a32012-12-08 08:44:02 +0100800
801 si->conn->flags &= ~CO_FL_XPRT_TRACKED;
802 conn_full_close(si->conn);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100803
804 if (si->err_type)
805 return 0;
806
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100807 if (si->flags & SI_FL_ERR)
808 si->err_type = SI_ET_CONN_ERR;
809 else
810 si->err_type = SI_ET_CONN_TO;
811 return 0;
812 }
813
814 /* OK, maybe we want to abort */
Willy Tarreaua7a7ebc2012-12-30 00:50:35 +0100815 if (!(req->flags & CF_WRITE_PARTIAL) &&
816 unlikely((rep->flags & CF_SHUTW) ||
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200817 ((req->flags & CF_SHUTW_NOW) && /* FIXME: this should not prevent a connection from establishing */
818 ((!(req->flags & CF_WRITE_ACTIVITY) && channel_is_empty(req)) ||
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100819 s->be->options & PR_O_ABRT_CLOSE)))) {
820 /* give up */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200821 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100822 si->err_type |= SI_ET_CONN_ABRT;
Willy Tarreau84455332009-03-15 22:34:05 +0100823 if (s->srv_error)
824 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100825 return 1;
826 }
827
828 /* we need to wait a bit more if there was no activity either */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200829 if (!(req->flags & CF_WRITE_ACTIVITY))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100830 return 1;
831
832 /* OK, this means that a connection succeeded. The caller will be
833 * responsible for handling the transition from CON to EST.
834 */
835 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau127334e2009-03-28 10:47:26 +0100836 si->exp = TICK_ETERNITY;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100837 si->state = SI_ST_EST;
838 si->err_type = SI_ET_NONE;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100839 return 1;
840}
841
842/* This function is called with (si->state == SI_ST_CER) meaning that a
843 * previous connection attempt has failed and that the file descriptor
844 * has already been released. Possible causes include asynchronous error
845 * notification and time out. Possible output states are SI_ST_CLO when
846 * retries are exhausted, SI_ST_TAR when a delay is wanted before a new
847 * connection attempt, SI_ST_ASS when it's wise to retry on the same server,
848 * and SI_ST_REQ when an immediate redispatch is wanted. The buffers are
849 * marked as in error state. It returns 0.
850 */
Simon Hormandec5be42011-06-08 09:19:07 +0900851static int sess_update_st_cer(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100852{
853 /* we probably have to release last session from the server */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100854 if (objt_server(s->target)) {
855 health_adjust(objt_server(s->target), HANA_STATUS_L4_ERR);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100856
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100857 if (s->flags & SN_CURR_SESS) {
858 s->flags &= ~SN_CURR_SESS;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100859 objt_server(s->target)->cur_sess--;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100860 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100861 }
862
863 /* ensure that we have enough retries left */
Willy Tarreauee28de02010-06-01 09:51:00 +0200864 si->conn_retries--;
865 if (si->conn_retries < 0) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100866 if (!si->err_type) {
867 si->err_type = SI_ET_CONN_ERR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100868 }
869
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100870 if (objt_server(s->target))
871 objt_server(s->target)->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100872 s->be->be_counters.failed_conns++;
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100873 sess_change_server(s, NULL);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100874 if (may_dequeue_tasks(objt_server(s->target), s->be))
875 process_srv_queue(objt_server(s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100876
877 /* shutw is enough so stop a connecting socket */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200878 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200879 si->ob->flags |= CF_WRITE_ERROR;
880 si->ib->flags |= CF_READ_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100881
882 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100883 if (s->srv_error)
884 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100885 return 0;
886 }
887
888 /* If the "redispatch" option is set on the backend, we are allowed to
889 * retry on another server for the last retry. In order to achieve this,
890 * we must mark the session unassigned, and eventually clear the DIRECT
891 * bit to ignore any persistence cookie. We won't count a retry nor a
892 * redispatch yet, because this will depend on what server is selected.
893 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100894 if (objt_server(s->target) && si->conn_retries == 0 &&
Willy Tarreau4de91492010-01-22 19:10:05 +0100895 s->be->options & PR_O_REDISP && !(s->flags & SN_FORCE_PRST)) {
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100896 sess_change_server(s, NULL);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100897 if (may_dequeue_tasks(objt_server(s->target), s->be))
898 process_srv_queue(objt_server(s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100899
900 s->flags &= ~(SN_DIRECT | SN_ASSIGNED | SN_ADDR_SET);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100901 si->state = SI_ST_REQ;
902 } else {
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100903 if (objt_server(s->target))
904 objt_server(s->target)->counters.retries++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100905 s->be->be_counters.retries++;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100906 si->state = SI_ST_ASS;
907 }
908
909 if (si->flags & SI_FL_ERR) {
910 /* The error was an asynchronous connection error, and we will
911 * likely have to retry connecting to the same server, most
912 * likely leading to the same result. To avoid this, we wait
913 * one second before retrying.
914 */
915
916 if (!si->err_type)
917 si->err_type = SI_ET_CONN_ERR;
918
919 si->state = SI_ST_TAR;
920 si->exp = tick_add(now_ms, MS_TO_TICKS(1000));
921 return 0;
922 }
923 return 0;
924}
925
926/*
927 * This function handles the transition between the SI_ST_CON state and the
Willy Tarreau85e7d002010-05-31 11:57:51 +0200928 * SI_ST_EST state. It must only be called after switching from SI_ST_CON (or
Willy Tarreau26d8c592012-05-07 18:12:14 +0200929 * SI_ST_INI) to SI_ST_EST, but only when a ->proto is defined.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100930 */
Simon Hormandec5be42011-06-08 09:19:07 +0900931static void sess_establish(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100932{
Willy Tarreau7421efb2012-07-02 15:11:27 +0200933 struct channel *req = si->ob;
934 struct channel *rep = si->ib;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100935
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100936 if (objt_server(s->target))
937 health_adjust(objt_server(s->target), HANA_STATUS_L4_OK);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100938
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100939 if (s->be->mode == PR_MODE_TCP) { /* let's allow immediate data connection in this case */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100940 /* if the user wants to log as soon as possible, without counting
941 * bytes from the server, then this is the right moment. */
Willy Tarreaud79a3b22012-12-28 09:40:16 +0100942 if (!LIST_ISEMPTY(&s->fe->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100943 s->logs.t_close = s->logs.t_connect; /* to get a valid end date */
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100944 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100945 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100946 }
947 else {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100948 s->txn.rsp.msg_state = HTTP_MSG_RPBEFORE;
949 /* reset hdr_idx which was already initialized by the request.
950 * right now, the http parser does it.
951 * hdr_idx_init(&s->txn.hdr_idx);
952 */
953 }
954
Willy Tarreau4e5b8282009-08-16 22:57:50 +0200955 rep->analysers |= s->fe->fe_rsp_ana | s->be->be_rsp_ana;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200956 rep->flags |= CF_READ_ATTACHED; /* producer is now attached */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200957 if (si_ctrl(si)) {
Willy Tarreaud04e8582010-05-31 12:31:35 +0200958 /* real connections have timeouts */
959 req->wto = s->be->timeout.server;
960 rep->rto = s->be->timeout.server;
961 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100962 req->wex = TICK_ETERNITY;
963}
964
965/* Update stream interface status for input states SI_ST_ASS, SI_ST_QUE, SI_ST_TAR.
966 * Other input states are simply ignored.
967 * Possible output states are SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ, SI_ST_CON.
968 * Flags must have previously been updated for timeouts and other conditions.
969 */
Simon Hormandec5be42011-06-08 09:19:07 +0900970static void sess_update_stream_int(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100971{
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100972 struct server *srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +0100973
Willy Tarreau02d6cfc2012-03-01 18:19:58 +0100974 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 +0100975 now_ms, __FUNCTION__,
976 s,
977 s->req, s->rep,
978 s->req->rex, s->rep->wex,
979 s->req->flags, s->rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200980 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 +0100981
982 if (si->state == SI_ST_ASS) {
983 /* Server assigned to connection request, we have to try to connect now */
984 int conn_err;
985
986 conn_err = connect_server(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100987 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +0100988
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100989 if (conn_err == SN_ERR_NONE) {
990 /* state = SI_ST_CON now */
Willy Tarreau827aee92011-03-10 16:55:02 +0100991 if (srv)
992 srv_inc_sess_ctr(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100993 return;
994 }
995
996 /* We have received a synchronous error. We might have to
997 * abort, retry immediately or redispatch.
998 */
999 if (conn_err == SN_ERR_INTERNAL) {
1000 if (!si->err_type) {
1001 si->err_type = SI_ET_CONN_OTHER;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001002 }
1003
Willy Tarreau827aee92011-03-10 16:55:02 +01001004 if (srv)
1005 srv_inc_sess_ctr(srv);
1006 if (srv)
1007 srv->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001008 s->be->be_counters.failed_conns++;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001009
1010 /* release other sessions waiting for this server */
Willy Tarreaub89cfca2010-12-29 14:32:28 +01001011 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001012 if (may_dequeue_tasks(srv, s->be))
1013 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001014
1015 /* Failed and not retryable. */
Willy Tarreau73b013b2012-05-21 16:31:45 +02001016 si_shutr(si);
1017 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001018 si->ob->flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001019
1020 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1021
1022 /* no session was ever accounted for this server */
1023 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001024 if (s->srv_error)
1025 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001026 return;
1027 }
1028
1029 /* We are facing a retryable error, but we don't want to run a
1030 * turn-around now, as the problem is likely a source port
1031 * allocation problem, so we want to retry now.
1032 */
1033 si->state = SI_ST_CER;
1034 si->flags &= ~SI_FL_ERR;
1035 sess_update_st_cer(s, si);
1036 /* now si->state is one of SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ */
1037 return;
1038 }
1039 else if (si->state == SI_ST_QUE) {
1040 /* connection request was queued, check for any update */
1041 if (!s->pend_pos) {
1042 /* The connection is not in the queue anymore. Either
1043 * we have a server connection slot available and we
1044 * go directly to the assigned state, or we need to
1045 * load-balance first and go to the INI state.
1046 */
1047 si->exp = TICK_ETERNITY;
1048 if (unlikely(!(s->flags & SN_ASSIGNED)))
1049 si->state = SI_ST_REQ;
1050 else {
1051 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1052 si->state = SI_ST_ASS;
1053 }
1054 return;
1055 }
1056
1057 /* Connection request still in queue... */
1058 if (si->flags & SI_FL_EXP) {
1059 /* ... and timeout expired */
1060 si->exp = TICK_ETERNITY;
1061 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau827aee92011-03-10 16:55:02 +01001062 if (srv)
1063 srv->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001064 s->be->be_counters.failed_conns++;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001065 si_shutr(si);
1066 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001067 si->ob->flags |= CF_WRITE_TIMEOUT;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001068 if (!si->err_type)
1069 si->err_type = SI_ET_QUEUE_TO;
1070 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001071 if (s->srv_error)
1072 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001073 return;
1074 }
1075
1076 /* Connection remains in queue, check if we have to abort it */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001077 if ((si->ob->flags & (CF_READ_ERROR)) ||
1078 ((si->ob->flags & CF_SHUTW_NOW) && /* empty and client aborted */
Willy Tarreau8e21bb92012-08-24 22:40:29 +02001079 (channel_is_empty(si->ob) || s->be->options & PR_O_ABRT_CLOSE))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001080 /* give up */
1081 si->exp = TICK_ETERNITY;
1082 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau73b013b2012-05-21 16:31:45 +02001083 si_shutr(si);
1084 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001085 si->err_type |= SI_ET_QUEUE_ABRT;
1086 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001087 if (s->srv_error)
1088 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001089 return;
1090 }
1091
1092 /* Nothing changed */
1093 return;
1094 }
1095 else if (si->state == SI_ST_TAR) {
1096 /* Connection request might be aborted */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001097 if ((si->ob->flags & (CF_READ_ERROR)) ||
1098 ((si->ob->flags & CF_SHUTW_NOW) && /* empty and client aborted */
Willy Tarreau8e21bb92012-08-24 22:40:29 +02001099 (channel_is_empty(si->ob) || s->be->options & PR_O_ABRT_CLOSE))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001100 /* give up */
1101 si->exp = TICK_ETERNITY;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001102 si_shutr(si);
1103 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001104 si->err_type |= SI_ET_CONN_ABRT;
1105 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001106 if (s->srv_error)
1107 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001108 return;
1109 }
1110
1111 if (!(si->flags & SI_FL_EXP))
1112 return; /* still in turn-around */
1113
1114 si->exp = TICK_ETERNITY;
1115
1116 /* we keep trying on the same server as long as the session is
1117 * marked "assigned".
1118 * FIXME: Should we force a redispatch attempt when the server is down ?
1119 */
1120 if (s->flags & SN_ASSIGNED)
1121 si->state = SI_ST_ASS;
1122 else
1123 si->state = SI_ST_REQ;
1124 return;
1125 }
1126}
1127
Simon Hormandec5be42011-06-08 09:19:07 +09001128/* Set correct session termination flags in case no analyser has done it. It
1129 * also counts a failed request if the server state has not reached the request
1130 * stage.
1131 */
1132static void sess_set_term_flags(struct session *s)
1133{
1134 if (!(s->flags & SN_FINST_MASK)) {
1135 if (s->si[1].state < SI_ST_REQ) {
1136
1137 s->fe->fe_counters.failed_req++;
1138 if (s->listener->counters)
1139 s->listener->counters->failed_req++;
1140
1141 s->flags |= SN_FINST_R;
1142 }
1143 else if (s->si[1].state == SI_ST_QUE)
1144 s->flags |= SN_FINST_Q;
1145 else if (s->si[1].state < SI_ST_EST)
1146 s->flags |= SN_FINST_C;
1147 else if (s->si[1].state == SI_ST_EST || s->si[1].prev_state == SI_ST_EST)
1148 s->flags |= SN_FINST_D;
1149 else
1150 s->flags |= SN_FINST_L;
1151 }
1152}
1153
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001154/* This function initiates a server connection request on a stream interface
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001155 * already in SI_ST_REQ state. Upon success, the state goes to SI_ST_ASS for
1156 * a real connection to a server, indicating that a server has been assigned,
1157 * or SI_ST_EST for a successful connection to an applet. It may also return
1158 * SI_ST_QUE, or SI_ST_CLO upon error.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001159 */
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001160static void sess_prepare_conn_req(struct session *s, struct stream_interface *si)
1161{
1162 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 +01001163 now_ms, __FUNCTION__,
1164 s,
1165 s->req, s->rep,
1166 s->req->rex, s->rep->wex,
1167 s->req->flags, s->rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001168 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 +01001169
1170 if (si->state != SI_ST_REQ)
1171 return;
1172
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001173 if (unlikely(obj_type(s->target) == OBJ_TYPE_APPLET)) {
1174 /* the applet directly goes to the EST state */
1175 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1176 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
1177 si->state = SI_ST_EST;
1178 si->err_type = SI_ET_NONE;
1179 si->exp = TICK_ETERNITY;
Willy Tarreaufac4bd12013-11-30 09:21:49 +01001180 /* let sess_establish() finish the job */
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001181 return;
1182 }
1183
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001184 /* Try to assign a server */
1185 if (srv_redispatch_connect(s) != 0) {
1186 /* We did not get a server. Either we queued the
1187 * connection request, or we encountered an error.
1188 */
1189 if (si->state == SI_ST_QUE)
1190 return;
1191
1192 /* we did not get any server, let's check the cause */
Willy Tarreau73b013b2012-05-21 16:31:45 +02001193 si_shutr(si);
1194 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001195 si->ob->flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001196 if (!si->err_type)
1197 si->err_type = SI_ET_CONN_OTHER;
1198 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001199 if (s->srv_error)
1200 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001201 return;
1202 }
1203
1204 /* The server is assigned */
1205 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1206 si->state = SI_ST_ASS;
1207}
1208
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001209/* This stream analyser checks the switching rules and changes the backend
Willy Tarreau4de91492010-01-22 19:10:05 +01001210 * if appropriate. The default_backend rule is also considered, then the
1211 * target backend's forced persistence rules are also evaluated last if any.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001212 * It returns 1 if the processing can continue on next analysers, or zero if it
1213 * either needs more data or wants to immediately abort the request.
1214 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001215static int process_switching_rules(struct session *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001216{
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001217 struct persist_rule *prst_rule;
Willy Tarreau4de91492010-01-22 19:10:05 +01001218
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001219 req->analysers &= ~an_bit;
1220 req->analyse_exp = TICK_ETERNITY;
1221
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001222 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 +02001223 now_ms, __FUNCTION__,
1224 s,
1225 req,
1226 req->rex, req->wex,
1227 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001228 req->buf->i,
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001229 req->analysers);
1230
1231 /* now check whether we have some switching rules for this request */
1232 if (!(s->flags & SN_BE_ASSIGNED)) {
1233 struct switching_rule *rule;
1234
1235 list_for_each_entry(rule, &s->fe->switching_rules, list) {
1236 int ret;
1237
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001238 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 +02001239 ret = acl_pass(ret);
1240 if (rule->cond->pol == ACL_COND_UNLESS)
1241 ret = !ret;
1242
1243 if (ret) {
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001244 if (!session_set_backend(s, rule->be.backend))
1245 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001246 break;
1247 }
1248 }
1249
1250 /* To ensure correct connection accounting on the backend, we
1251 * have to assign one if it was not set (eg: a listen). This
1252 * measure also takes care of correctly setting the default
1253 * backend if any.
1254 */
1255 if (!(s->flags & SN_BE_ASSIGNED))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001256 if (!session_set_backend(s, s->fe->defbe.be ? s->fe->defbe.be : s->be))
1257 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001258 }
1259
Willy Tarreaufb356202010-08-03 14:02:05 +02001260 /* we don't want to run the TCP or HTTP filters again if the backend has not changed */
1261 if (s->fe == s->be) {
1262 s->req->analysers &= ~AN_REQ_INSPECT_BE;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001263 s->req->analysers &= ~AN_REQ_HTTP_PROCESS_BE;
Willy Tarreaufb356202010-08-03 14:02:05 +02001264 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001265
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001266 /* 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 +01001267 * persistence rule, and report that in the session.
1268 */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001269 list_for_each_entry(prst_rule, &s->be->persist_rules, list) {
Willy Tarreau4de91492010-01-22 19:10:05 +01001270 int ret = 1;
1271
1272 if (prst_rule->cond) {
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001273 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 +01001274 ret = acl_pass(ret);
1275 if (prst_rule->cond->pol == ACL_COND_UNLESS)
1276 ret = !ret;
1277 }
1278
1279 if (ret) {
1280 /* no rule, or the rule matches */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001281 if (prst_rule->type == PERSIST_TYPE_FORCE) {
1282 s->flags |= SN_FORCE_PRST;
1283 } else {
1284 s->flags |= SN_IGNORE_PRST;
1285 }
Willy Tarreau4de91492010-01-22 19:10:05 +01001286 break;
1287 }
1288 }
1289
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001290 return 1;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001291
1292 sw_failed:
1293 /* immediately abort this request in case of allocation failure */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001294 channel_abort(s->req);
1295 channel_abort(s->rep);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001296
1297 if (!(s->flags & SN_ERR_MASK))
1298 s->flags |= SN_ERR_RESOURCE;
1299 if (!(s->flags & SN_FINST_MASK))
1300 s->flags |= SN_FINST_R;
1301
1302 s->txn.status = 500;
1303 s->req->analysers = 0;
1304 s->req->analyse_exp = TICK_ETERNITY;
1305 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001306}
1307
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001308/* This stream analyser works on a request. It applies all use-server rules on
1309 * it then returns 1. The data must already be present in the buffer otherwise
1310 * they won't match. It always returns 1.
1311 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001312static int process_server_rules(struct session *s, struct channel *req, int an_bit)
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001313{
1314 struct proxy *px = s->be;
1315 struct server_rule *rule;
1316
1317 DPRINTF(stderr,"[%u] %s: session=%p b=%p, exp(r,w)=%u,%u bf=%08x bl=%d analysers=%02x\n",
1318 now_ms, __FUNCTION__,
1319 s,
1320 req,
1321 req->rex, req->wex,
1322 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001323 req->buf->i + req->buf->o,
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001324 req->analysers);
1325
1326 if (!(s->flags & SN_ASSIGNED)) {
1327 list_for_each_entry(rule, &px->server_rules, list) {
1328 int ret;
1329
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001330 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 +02001331 ret = acl_pass(ret);
1332 if (rule->cond->pol == ACL_COND_UNLESS)
1333 ret = !ret;
1334
1335 if (ret) {
1336 struct server *srv = rule->srv.ptr;
1337
1338 if ((srv->state & SRV_RUNNING) ||
1339 (px->options & PR_O_PERSIST) ||
1340 (s->flags & SN_FORCE_PRST)) {
1341 s->flags |= SN_DIRECT | SN_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001342 s->target = &srv->obj_type;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001343 break;
1344 }
1345 /* if the server is not UP, let's go on with next rules
1346 * just in case another one is suited.
1347 */
1348 }
1349 }
1350 }
1351
1352 req->analysers &= ~an_bit;
1353 req->analyse_exp = TICK_ETERNITY;
1354 return 1;
1355}
1356
Emeric Brun1d33b292010-01-04 15:47:17 +01001357/* This stream analyser works on a request. It applies all sticking rules on
1358 * it then returns 1. The data must already be present in the buffer otherwise
1359 * they won't match. It always returns 1.
1360 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001361static int process_sticking_rules(struct session *s, struct channel *req, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001362{
1363 struct proxy *px = s->be;
1364 struct sticking_rule *rule;
1365
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001366 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 +01001367 now_ms, __FUNCTION__,
1368 s,
1369 req,
1370 req->rex, req->wex,
1371 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001372 req->buf->i,
Emeric Brun1d33b292010-01-04 15:47:17 +01001373 req->analysers);
1374
1375 list_for_each_entry(rule, &px->sticking_rules, list) {
1376 int ret = 1 ;
1377 int i;
1378
Willy Tarreau9667a802013-12-09 12:52:13 +01001379 /* Only the first stick store-request of each table is applied
1380 * and other ones are ignored. The purpose is to allow complex
1381 * configurations which look for multiple entries by decreasing
1382 * order of precision and to stop at the first which matches.
1383 * An example could be a store of the IP address from an HTTP
1384 * header first, then from the source if not found.
1385 */
Emeric Brun1d33b292010-01-04 15:47:17 +01001386 for (i = 0; i < s->store_count; i++) {
1387 if (rule->table.t == s->store[i].table)
1388 break;
1389 }
1390
1391 if (i != s->store_count)
1392 continue;
1393
1394 if (rule->cond) {
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001395 ret = acl_exec_cond(rule->cond, px, s, &s->txn, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001396 ret = acl_pass(ret);
1397 if (rule->cond->pol == ACL_COND_UNLESS)
1398 ret = !ret;
1399 }
1400
1401 if (ret) {
1402 struct stktable_key *key;
1403
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001404 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 +01001405 if (!key)
1406 continue;
1407
1408 if (rule->flags & STK_IS_MATCH) {
1409 struct stksess *ts;
1410
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001411 if ((ts = stktable_lookup_key(rule->table.t, key)) != NULL) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001412 if (!(s->flags & SN_ASSIGNED)) {
1413 struct eb32_node *node;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001414 void *ptr;
Emeric Brun1d33b292010-01-04 15:47:17 +01001415
1416 /* srv found in table */
Willy Tarreau13c29de2010-06-06 16:40:39 +02001417 ptr = stktable_data_ptr(rule->table.t, ts, STKTABLE_DT_SERVER_ID);
1418 node = eb32_lookup(&px->conf.used_server_id, stktable_data_cast(ptr, server_id));
Emeric Brun1d33b292010-01-04 15:47:17 +01001419 if (node) {
1420 struct server *srv;
1421
1422 srv = container_of(node, struct server, conf.id);
Willy Tarreau4de91492010-01-22 19:10:05 +01001423 if ((srv->state & SRV_RUNNING) ||
1424 (px->options & PR_O_PERSIST) ||
1425 (s->flags & SN_FORCE_PRST)) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001426 s->flags |= SN_DIRECT | SN_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001427 s->target = &srv->obj_type;
Emeric Brun1d33b292010-01-04 15:47:17 +01001428 }
1429 }
1430 }
Emeric Brun85e77c72010-09-23 18:16:52 +02001431 stktable_touch(rule->table.t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001432 }
1433 }
1434 if (rule->flags & STK_IS_STORE) {
1435 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
1436 struct stksess *ts;
1437
1438 ts = stksess_new(rule->table.t, key);
1439 if (ts) {
1440 s->store[s->store_count].table = rule->table.t;
1441 s->store[s->store_count++].ts = ts;
1442 }
1443 }
1444 }
1445 }
1446 }
1447
1448 req->analysers &= ~an_bit;
1449 req->analyse_exp = TICK_ETERNITY;
1450 return 1;
1451}
1452
1453/* This stream analyser works on a response. It applies all store rules on it
1454 * then returns 1. The data must already be present in the buffer otherwise
1455 * they won't match. It always returns 1.
1456 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001457static int process_store_rules(struct session *s, struct channel *rep, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001458{
1459 struct proxy *px = s->be;
1460 struct sticking_rule *rule;
1461 int i;
Willy Tarreau9667a802013-12-09 12:52:13 +01001462 int nbreq = s->store_count;
Emeric Brun1d33b292010-01-04 15:47:17 +01001463
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001464 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 +01001465 now_ms, __FUNCTION__,
1466 s,
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001467 rep,
1468 rep->rex, rep->wex,
1469 rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001470 rep->buf->i,
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001471 rep->analysers);
Emeric Brun1d33b292010-01-04 15:47:17 +01001472
1473 list_for_each_entry(rule, &px->storersp_rules, list) {
1474 int ret = 1 ;
Emeric Brun1d33b292010-01-04 15:47:17 +01001475
Willy Tarreau9667a802013-12-09 12:52:13 +01001476 /* Only the first stick store-response of each table is applied
1477 * and other ones are ignored. The purpose is to allow complex
1478 * configurations which look for multiple entries by decreasing
1479 * order of precision and to stop at the first which matches.
1480 * An example could be a store of a set-cookie value, with a
1481 * fallback to a parameter found in a 302 redirect.
1482 *
1483 * The store-response rules are not allowed to override the
1484 * store-request rules for the same table, but they may coexist.
1485 * Thus we can have up to one store-request entry and one store-
1486 * response entry for the same table at any time.
1487 */
1488 for (i = nbreq; i < s->store_count; i++) {
1489 if (rule->table.t == s->store[i].table)
1490 break;
1491 }
1492
1493 /* skip existing entries for this table */
1494 if (i < s->store_count)
1495 continue;
1496
Emeric Brun1d33b292010-01-04 15:47:17 +01001497 if (rule->cond) {
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001498 ret = acl_exec_cond(rule->cond, px, s, &s->txn, SMP_OPT_DIR_RES|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001499 ret = acl_pass(ret);
1500 if (rule->cond->pol == ACL_COND_UNLESS)
1501 ret = !ret;
1502 }
1503
1504 if (ret) {
1505 struct stktable_key *key;
1506
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001507 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 +01001508 if (!key)
1509 continue;
1510
Willy Tarreau37e340c2013-12-06 23:05:21 +01001511 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001512 struct stksess *ts;
1513
1514 ts = stksess_new(rule->table.t, key);
1515 if (ts) {
1516 s->store[s->store_count].table = rule->table.t;
Emeric Brun1d33b292010-01-04 15:47:17 +01001517 s->store[s->store_count++].ts = ts;
1518 }
1519 }
1520 }
1521 }
1522
1523 /* process store request and store response */
1524 for (i = 0; i < s->store_count; i++) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001525 struct stksess *ts;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001526 void *ptr;
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001527
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001528 if (objt_server(s->target) && objt_server(s->target)->state & SRV_NON_STICK) {
Simon Hormanfa461682011-06-25 09:39:49 +09001529 stksess_free(s->store[i].table, s->store[i].ts);
1530 s->store[i].ts = NULL;
1531 continue;
1532 }
1533
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001534 ts = stktable_lookup(s->store[i].table, s->store[i].ts);
1535 if (ts) {
1536 /* the entry already existed, we can free ours */
Emeric Brun85e77c72010-09-23 18:16:52 +02001537 stktable_touch(s->store[i].table, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001538 stksess_free(s->store[i].table, s->store[i].ts);
Emeric Brun1d33b292010-01-04 15:47:17 +01001539 }
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001540 else
Emeric Brun85e77c72010-09-23 18:16:52 +02001541 ts = stktable_store(s->store[i].table, s->store[i].ts, 1);
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001542
1543 s->store[i].ts = NULL;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001544 ptr = stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_ID);
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001545 stktable_data_cast(ptr, server_id) = objt_server(s->target)->puid;
Emeric Brun1d33b292010-01-04 15:47:17 +01001546 }
Willy Tarreau2a164ee2010-06-18 09:57:45 +02001547 s->store_count = 0; /* everything is stored */
Emeric Brun1d33b292010-01-04 15:47:17 +01001548
1549 rep->analysers &= ~an_bit;
1550 rep->analyse_exp = TICK_ETERNITY;
1551 return 1;
1552}
1553
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001554/* This macro is very specific to the function below. See the comments in
1555 * process_session() below to understand the logic and the tests.
1556 */
1557#define UPDATE_ANALYSERS(real, list, back, flag) { \
1558 list = (((list) & ~(flag)) | ~(back)) & (real); \
1559 back = real; \
1560 if (!(list)) \
1561 break; \
1562 if (((list) ^ ((list) & ((list) - 1))) < (flag)) \
1563 continue; \
1564}
1565
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001566/* Processes the client, server, request and response jobs of a session task,
1567 * then puts it back to the wait queue in a clean state, or cleans up its
1568 * resources if it must be deleted. Returns in <next> the date the task wants
1569 * to be woken up, or TICK_ETERNITY. In order not to call all functions for
1570 * nothing too many times, the request and response buffers flags are monitored
1571 * and each function is called only if at least another function has changed at
1572 * least one flag it is interested in.
1573 */
Willy Tarreau26c25062009-03-08 09:38:41 +01001574struct task *process_session(struct task *t)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001575{
Willy Tarreau827aee92011-03-10 16:55:02 +01001576 struct server *srv;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001577 struct session *s = t->context;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001578 unsigned int rqf_last, rpf_last;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001579 unsigned int rq_prod_last, rq_cons_last;
1580 unsigned int rp_cons_last, rp_prod_last;
Willy Tarreau576507f2010-01-07 00:09:04 +01001581 unsigned int req_ana_back;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001582
1583 //DPRINTF(stderr, "%s:%d: cs=%d ss=%d(%d) rqf=0x%08x rpf=0x%08x\n", __FUNCTION__, __LINE__,
1584 // s->si[0].state, s->si[1].state, s->si[1].err_type, s->req->flags, s->rep->flags);
1585
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001586 /* this data may be no longer valid, clear it */
1587 memset(&s->txn.auth, 0, sizeof(s->txn.auth));
1588
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001589 /* This flag must explicitly be set every time */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001590 s->req->flags &= ~CF_READ_NOEXP;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001591
1592 /* Keep a copy of req/rep flags so that we can detect shutdowns */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001593 rqf_last = s->req->flags & ~CF_MASK_ANALYSER;
1594 rpf_last = s->rep->flags & ~CF_MASK_ANALYSER;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001595
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001596 /* we don't want the stream interface functions to recursively wake us up */
1597 if (s->req->prod->owner == t)
1598 s->req->prod->flags |= SI_FL_DONT_WAKE;
1599 if (s->req->cons->owner == t)
1600 s->req->cons->flags |= SI_FL_DONT_WAKE;
1601
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001602 /* 1a: Check for low level timeouts if needed. We just set a flag on
1603 * stream interfaces when their timeouts have expired.
1604 */
1605 if (unlikely(t->state & TASK_WOKEN_TIMER)) {
1606 stream_int_check_timeouts(&s->si[0]);
1607 stream_int_check_timeouts(&s->si[1]);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001608
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001609 /* check channel timeouts, and close the corresponding stream interfaces
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001610 * for future reads or writes. Note: this will also concern upper layers
1611 * but we do not touch any other flag. We must be careful and correctly
1612 * detect state changes when calling them.
1613 */
1614
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001615 channel_check_timeouts(s->req);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001616
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001617 if (unlikely((s->req->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
Willy Tarreau14641402009-12-29 14:49:56 +01001618 s->req->cons->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001619 si_shutw(s->req->cons);
Willy Tarreau14641402009-12-29 14:49:56 +01001620 }
1621
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001622 if (unlikely((s->req->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001623 if (s->req->prod->flags & SI_FL_NOHALF)
1624 s->req->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001625 si_shutr(s->req->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001626 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001627
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001628 channel_check_timeouts(s->rep);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001629
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001630 if (unlikely((s->rep->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
Willy Tarreau14641402009-12-29 14:49:56 +01001631 s->rep->cons->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001632 si_shutw(s->rep->cons);
Willy Tarreau14641402009-12-29 14:49:56 +01001633 }
1634
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001635 if (unlikely((s->rep->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001636 if (s->rep->prod->flags & SI_FL_NOHALF)
1637 s->rep->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001638 si_shutr(s->rep->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001639 }
Willy Tarreau798f4322012-11-08 14:49:17 +01001640
1641 /* Once in a while we're woken up because the task expires. But
1642 * this does not necessarily mean that a timeout has been reached.
1643 * So let's not run a whole session processing if only an expiration
1644 * timeout needs to be refreshed.
1645 */
1646 if (!((s->req->flags | s->rep->flags) &
1647 (CF_SHUTR|CF_READ_ACTIVITY|CF_READ_TIMEOUT|CF_SHUTW|
1648 CF_WRITE_ACTIVITY|CF_WRITE_TIMEOUT|CF_ANA_TIMEOUT)) &&
1649 !((s->si[0].flags | s->si[1].flags) & (SI_FL_EXP|SI_FL_ERR)) &&
1650 ((t->state & TASK_WOKEN_ANY) == TASK_WOKEN_TIMER))
1651 goto update_exp_and_leave;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001652 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001653
1654 /* 1b: check for low-level errors reported at the stream interface.
1655 * First we check if it's a retryable error (in which case we don't
1656 * want to tell the buffer). Otherwise we report the error one level
1657 * upper by setting flags into the buffers. Note that the side towards
1658 * the client cannot have connect (hence retryable) errors. Also, the
1659 * connection setup code must be able to deal with any type of abort.
1660 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001661 srv = objt_server(s->target);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001662 if (unlikely(s->si[0].flags & SI_FL_ERR)) {
1663 if (s->si[0].state == SI_ST_EST || s->si[0].state == SI_ST_DIS) {
Willy Tarreau73b013b2012-05-21 16:31:45 +02001664 si_shutr(&s->si[0]);
1665 si_shutw(&s->si[0]);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001666 stream_int_report_error(&s->si[0]);
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001667 if (!(s->req->analysers) && !(s->rep->analysers)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001668 s->be->be_counters.cli_aborts++;
1669 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001670 if (srv)
1671 srv->counters.cli_aborts++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001672 if (!(s->flags & SN_ERR_MASK))
1673 s->flags |= SN_ERR_CLICL;
1674 if (!(s->flags & SN_FINST_MASK))
1675 s->flags |= SN_FINST_D;
1676 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001677 }
1678 }
1679
1680 if (unlikely(s->si[1].flags & SI_FL_ERR)) {
1681 if (s->si[1].state == SI_ST_EST || s->si[1].state == SI_ST_DIS) {
Willy Tarreau73b013b2012-05-21 16:31:45 +02001682 si_shutr(&s->si[1]);
1683 si_shutw(&s->si[1]);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001684 stream_int_report_error(&s->si[1]);
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001685 s->be->be_counters.failed_resp++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001686 if (srv)
1687 srv->counters.failed_resp++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001688 if (!(s->req->analysers) && !(s->rep->analysers)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001689 s->be->be_counters.srv_aborts++;
1690 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001691 if (srv)
1692 srv->counters.srv_aborts++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001693 if (!(s->flags & SN_ERR_MASK))
1694 s->flags |= SN_ERR_SRVCL;
1695 if (!(s->flags & SN_FINST_MASK))
1696 s->flags |= SN_FINST_D;
1697 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001698 }
1699 /* note: maybe we should process connection errors here ? */
1700 }
1701
1702 if (s->si[1].state == SI_ST_CON) {
1703 /* we were trying to establish a connection on the server side,
1704 * maybe it succeeded, maybe it failed, maybe we timed out, ...
1705 */
1706 if (unlikely(!sess_update_st_con_tcp(s, &s->si[1])))
1707 sess_update_st_cer(s, &s->si[1]);
1708 else if (s->si[1].state == SI_ST_EST)
1709 sess_establish(s, &s->si[1]);
1710
1711 /* state is now one of SI_ST_CON (still in progress), SI_ST_EST
1712 * (established), SI_ST_DIS (abort), SI_ST_CLO (last error),
1713 * SI_ST_ASS/SI_ST_TAR/SI_ST_REQ for retryable errors.
1714 */
1715 }
1716
Willy Tarreau815a9b22010-07-27 17:15:12 +02001717 rq_prod_last = s->si[0].state;
1718 rq_cons_last = s->si[1].state;
1719 rp_cons_last = s->si[0].state;
1720 rp_prod_last = s->si[1].state;
1721
1722 resync_stream_interface:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001723 /* Check for connection closure */
1724
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001725 DPRINTF(stderr,
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001726 "[%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 +01001727 now_ms, __FUNCTION__, __LINE__,
1728 t,
1729 s, s->flags,
1730 s->req, s->rep,
1731 s->req->rex, s->rep->wex,
1732 s->req->flags, s->rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001733 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 +01001734 s->rep->cons->err_type, s->req->cons->err_type,
Willy Tarreauee28de02010-06-01 09:51:00 +02001735 s->req->cons->conn_retries);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001736
1737 /* nothing special to be done on client side */
1738 if (unlikely(s->req->prod->state == SI_ST_DIS))
1739 s->req->prod->state = SI_ST_CLO;
1740
1741 /* When a server-side connection is released, we have to count it and
1742 * check for pending connections on this server.
1743 */
1744 if (unlikely(s->req->cons->state == SI_ST_DIS)) {
1745 s->req->cons->state = SI_ST_CLO;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001746 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01001747 if (srv) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001748 if (s->flags & SN_CURR_SESS) {
1749 s->flags &= ~SN_CURR_SESS;
Willy Tarreau827aee92011-03-10 16:55:02 +01001750 srv->cur_sess--;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001751 }
1752 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001753 if (may_dequeue_tasks(srv, s->be))
1754 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001755 }
1756 }
1757
1758 /*
1759 * Note: of the transient states (REQ, CER, DIS), only REQ may remain
1760 * at this point.
1761 */
1762
Willy Tarreau0be0ef92009-03-08 19:20:25 +01001763 resync_request:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001764 /* Analyse request */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001765 if (((s->req->flags & ~rqf_last) & CF_MASK_ANALYSER) ||
1766 ((s->req->flags ^ rqf_last) & CF_MASK_STATIC) ||
Willy Tarreau815a9b22010-07-27 17:15:12 +02001767 s->si[0].state != rq_prod_last ||
1768 s->si[1].state != rq_cons_last) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001769 unsigned int flags = s->req->flags;
1770
1771 if (s->req->prod->state >= SI_ST_EST) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001772 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001773 unsigned int ana_list;
1774 unsigned int ana_back;
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001775
Willy Tarreau90deb182010-01-07 00:20:41 +01001776 /* it's up to the analysers to stop new connections,
1777 * disable reading or closing. Note: if an analyser
1778 * disables any of these bits, it is responsible for
1779 * enabling them again when it disables itself, so
1780 * that other analysers are called in similar conditions.
1781 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001782 channel_auto_read(s->req);
1783 channel_auto_connect(s->req);
1784 channel_auto_close(s->req);
Willy Tarreauedcf6682008-11-30 23:15:34 +01001785
1786 /* We will call all analysers for which a bit is set in
1787 * s->req->analysers, following the bit order from LSB
1788 * to MSB. The analysers must remove themselves from
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001789 * the list when not needed. Any analyser may return 0
1790 * to break out of the loop, either because of missing
1791 * data to take a decision, or because it decides to
1792 * kill the session. We loop at least once through each
1793 * analyser, and we may loop again if other analysers
1794 * are added in the middle.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001795 *
1796 * We build a list of analysers to run. We evaluate all
1797 * of these analysers in the order of the lower bit to
1798 * the higher bit. This ordering is very important.
1799 * An analyser will often add/remove other analysers,
1800 * including itself. Any changes to itself have no effect
1801 * on the loop. If it removes any other analysers, we
1802 * want those analysers not to be called anymore during
1803 * this loop. If it adds an analyser that is located
1804 * after itself, we want it to be scheduled for being
1805 * processed during the loop. If it adds an analyser
1806 * which is located before it, we want it to switch to
1807 * it immediately, even if it has already been called
1808 * once but removed since.
1809 *
1810 * In order to achieve this, we compare the analyser
1811 * list after the call with a copy of it before the
1812 * call. The work list is fed with analyser bits that
1813 * appeared during the call. Then we compare previous
1814 * work list with the new one, and check the bits that
1815 * appeared. If the lowest of these bits is lower than
1816 * the current bit, it means we have enabled a previous
1817 * analyser and must immediately loop again.
Willy Tarreauedcf6682008-11-30 23:15:34 +01001818 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001819
1820 ana_list = ana_back = s->req->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001821 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001822 /* Warning! ensure that analysers are always placed in ascending order! */
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001823
Willy Tarreaufb356202010-08-03 14:02:05 +02001824 if (ana_list & AN_REQ_INSPECT_FE) {
1825 if (!tcp_inspect_request(s, s->req, AN_REQ_INSPECT_FE))
Willy Tarreauedcf6682008-11-30 23:15:34 +01001826 break;
Willy Tarreaufb356202010-08-03 14:02:05 +02001827 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_INSPECT_FE);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001828 }
Willy Tarreauedcf6682008-11-30 23:15:34 +01001829
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001830 if (ana_list & AN_REQ_WAIT_HTTP) {
Willy Tarreau3a816292009-07-07 10:55:49 +02001831 if (!http_wait_for_request(s, s->req, AN_REQ_WAIT_HTTP))
Willy Tarreaud787e662009-07-07 10:14:51 +02001832 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001833 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_WAIT_HTTP);
Willy Tarreaud787e662009-07-07 10:14:51 +02001834 }
1835
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001836 if (ana_list & AN_REQ_HTTP_PROCESS_FE) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001837 if (!http_process_req_common(s, s->req, AN_REQ_HTTP_PROCESS_FE, s->fe))
1838 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001839 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_PROCESS_FE);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001840 }
1841
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001842 if (ana_list & AN_REQ_SWITCHING_RULES) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001843 if (!process_switching_rules(s, s->req, AN_REQ_SWITCHING_RULES))
1844 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001845 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_SWITCHING_RULES);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001846 }
1847
Willy Tarreaufb356202010-08-03 14:02:05 +02001848 if (ana_list & AN_REQ_INSPECT_BE) {
1849 if (!tcp_inspect_request(s, s->req, AN_REQ_INSPECT_BE))
1850 break;
1851 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_INSPECT_BE);
1852 }
1853
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001854 if (ana_list & AN_REQ_HTTP_PROCESS_BE) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001855 if (!http_process_req_common(s, s->req, AN_REQ_HTTP_PROCESS_BE, s->be))
1856 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001857 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_PROCESS_BE);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001858 }
1859
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001860 if (ana_list & AN_REQ_HTTP_TARPIT) {
Willy Tarreau3a816292009-07-07 10:55:49 +02001861 if (!http_process_tarpit(s, s->req, AN_REQ_HTTP_TARPIT))
Willy Tarreau60b85b02008-11-30 23:28:40 +01001862 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001863 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_TARPIT);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001864 }
Willy Tarreau60b85b02008-11-30 23:28:40 +01001865
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001866 if (ana_list & AN_REQ_SRV_RULES) {
1867 if (!process_server_rules(s, s->req, AN_REQ_SRV_RULES))
1868 break;
1869 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_SRV_RULES);
1870 }
1871
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001872 if (ana_list & AN_REQ_HTTP_INNER) {
Willy Tarreauc465fd72009-08-31 00:17:18 +02001873 if (!http_process_request(s, s->req, AN_REQ_HTTP_INNER))
1874 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001875 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_INNER);
Willy Tarreauc465fd72009-08-31 00:17:18 +02001876 }
1877
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001878 if (ana_list & AN_REQ_HTTP_BODY) {
Willy Tarreau3a816292009-07-07 10:55:49 +02001879 if (!http_process_request_body(s, s->req, AN_REQ_HTTP_BODY))
Willy Tarreaud34af782008-11-30 23:36:37 +01001880 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001881 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_BODY);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001882 }
Emeric Brun647caf12009-06-30 17:57:00 +02001883
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001884 if (ana_list & AN_REQ_PRST_RDP_COOKIE) {
Emeric Brun647caf12009-06-30 17:57:00 +02001885 if (!tcp_persist_rdp_cookie(s, s->req, AN_REQ_PRST_RDP_COOKIE))
1886 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001887 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_PRST_RDP_COOKIE);
Emeric Brun647caf12009-06-30 17:57:00 +02001888 }
Willy Tarreaud98cf932009-12-27 22:54:55 +01001889
Emeric Brun1d33b292010-01-04 15:47:17 +01001890 if (ana_list & AN_REQ_STICKING_RULES) {
1891 if (!process_sticking_rules(s, s->req, AN_REQ_STICKING_RULES))
1892 break;
1893 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_STICKING_RULES);
1894 }
1895
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001896 if (ana_list & AN_REQ_HTTP_XFER_BODY) {
Willy Tarreaud98cf932009-12-27 22:54:55 +01001897 if (!http_request_forward_body(s, s->req, AN_REQ_HTTP_XFER_BODY))
1898 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001899 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_XFER_BODY);
Willy Tarreaud98cf932009-12-27 22:54:55 +01001900 }
Willy Tarreaue34070e2010-01-08 00:32:27 +01001901 break;
1902 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001903 }
Willy Tarreau84455332009-03-15 22:34:05 +01001904
Willy Tarreau815a9b22010-07-27 17:15:12 +02001905 rq_prod_last = s->si[0].state;
1906 rq_cons_last = s->si[1].state;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001907 s->req->flags &= ~CF_WAKE_ONCE;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001908 rqf_last = s->req->flags;
1909
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001910 if ((s->req->flags ^ flags) & CF_MASK_STATIC)
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001911 goto resync_request;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001912 }
1913
Willy Tarreau576507f2010-01-07 00:09:04 +01001914 /* we'll monitor the request analysers while parsing the response,
1915 * because some response analysers may indirectly enable new request
1916 * analysers (eg: HTTP keep-alive).
1917 */
1918 req_ana_back = s->req->analysers;
1919
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001920 resync_response:
1921 /* Analyse response */
1922
Willy Tarreaub31c9712012-11-11 23:05:39 +01001923 if (((s->rep->flags & ~rpf_last) & CF_MASK_ANALYSER) ||
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001924 (s->rep->flags ^ rpf_last) & CF_MASK_STATIC ||
Willy Tarreau815a9b22010-07-27 17:15:12 +02001925 s->si[0].state != rp_cons_last ||
1926 s->si[1].state != rp_prod_last) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001927 unsigned int flags = s->rep->flags;
1928
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001929 if ((s->rep->flags & CF_MASK_ANALYSER) &&
Willy Tarreau0499e352010-12-17 07:13:42 +01001930 (s->rep->analysers & AN_REQ_WAIT_HTTP)) {
1931 /* Due to HTTP pipelining, the HTTP request analyser might be waiting
1932 * for some free space in the response buffer, so we might need to call
1933 * it when something changes in the response buffer, but still we pass
1934 * it the request buffer. Note that the SI state might very well still
1935 * be zero due to us returning a flow of redirects!
1936 */
1937 s->rep->analysers &= ~AN_REQ_WAIT_HTTP;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001938 s->req->flags |= CF_WAKE_ONCE;
Willy Tarreau0499e352010-12-17 07:13:42 +01001939 }
1940
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001941 if (s->rep->prod->state >= SI_ST_EST) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001942 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001943 unsigned int ana_list;
1944 unsigned int ana_back;
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001945
Willy Tarreau90deb182010-01-07 00:20:41 +01001946 /* it's up to the analysers to stop disable reading or
1947 * closing. Note: if an analyser disables any of these
1948 * bits, it is responsible for enabling them again when
1949 * it disables itself, so that other analysers are called
1950 * in similar conditions.
1951 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001952 channel_auto_read(s->rep);
1953 channel_auto_close(s->rep);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001954
1955 /* We will call all analysers for which a bit is set in
1956 * s->rep->analysers, following the bit order from LSB
1957 * to MSB. The analysers must remove themselves from
1958 * the list when not needed. Any analyser may return 0
1959 * to break out of the loop, either because of missing
1960 * data to take a decision, or because it decides to
1961 * kill the session. We loop at least once through each
1962 * analyser, and we may loop again if other analysers
1963 * are added in the middle.
1964 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001965
1966 ana_list = ana_back = s->rep->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001967 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001968 /* Warning! ensure that analysers are always placed in ascending order! */
1969
Emeric Brun97679e72010-09-23 17:56:44 +02001970 if (ana_list & AN_RES_INSPECT) {
1971 if (!tcp_inspect_response(s, s->rep, AN_RES_INSPECT))
1972 break;
1973 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_INSPECT);
1974 }
1975
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001976 if (ana_list & AN_RES_WAIT_HTTP) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001977 if (!http_wait_for_response(s, s->rep, AN_RES_WAIT_HTTP))
1978 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001979 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_WAIT_HTTP);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001980 }
1981
Emeric Brun1d33b292010-01-04 15:47:17 +01001982 if (ana_list & AN_RES_STORE_RULES) {
1983 if (!process_store_rules(s, s->rep, AN_RES_STORE_RULES))
1984 break;
1985 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_STORE_RULES);
1986 }
1987
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001988 if (ana_list & AN_RES_HTTP_PROCESS_BE) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001989 if (!http_process_res_common(s, s->rep, AN_RES_HTTP_PROCESS_BE, s->be))
1990 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001991 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_HTTP_PROCESS_BE);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02001992 }
Willy Tarreaud98cf932009-12-27 22:54:55 +01001993
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001994 if (ana_list & AN_RES_HTTP_XFER_BODY) {
Willy Tarreaud98cf932009-12-27 22:54:55 +01001995 if (!http_response_forward_body(s, s->rep, AN_RES_HTTP_XFER_BODY))
1996 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001997 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_HTTP_XFER_BODY);
Willy Tarreaud98cf932009-12-27 22:54:55 +01001998 }
Willy Tarreaue34070e2010-01-08 00:32:27 +01001999 break;
2000 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002001 }
2002
Willy Tarreau815a9b22010-07-27 17:15:12 +02002003 rp_cons_last = s->si[0].state;
2004 rp_prod_last = s->si[1].state;
2005 rpf_last = s->rep->flags;
2006
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002007 if ((s->rep->flags ^ flags) & CF_MASK_STATIC)
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002008 goto resync_response;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002009 }
2010
Willy Tarreau576507f2010-01-07 00:09:04 +01002011 /* maybe someone has added some request analysers, so we must check and loop */
2012 if (s->req->analysers & ~req_ana_back)
2013 goto resync_request;
2014
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002015 if ((s->req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0499e352010-12-17 07:13:42 +01002016 goto resync_request;
2017
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002018 /* FIXME: here we should call protocol handlers which rely on
2019 * both buffers.
2020 */
2021
2022
2023 /*
Willy Tarreauae526782010-03-04 20:34:23 +01002024 * Now we propagate unhandled errors to the session. Normally
2025 * we're just in a data phase here since it means we have not
2026 * seen any analyser who could set an error status.
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002027 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002028 srv = objt_server(s->target);
Willy Tarreau2f976e12010-11-11 14:28:47 +01002029 if (unlikely(!(s->flags & SN_ERR_MASK))) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002030 if (s->req->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002031 /* Report it if the client got an error or a read timeout expired */
Willy Tarreau84455332009-03-15 22:34:05 +01002032 s->req->analysers = 0;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002033 if (s->req->flags & CF_READ_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002034 s->be->be_counters.cli_aborts++;
2035 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002036 if (srv)
2037 srv->counters.cli_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002038 s->flags |= SN_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002039 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002040 else if (s->req->flags & CF_READ_TIMEOUT) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002041 s->be->be_counters.cli_aborts++;
2042 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002043 if (srv)
2044 srv->counters.cli_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002045 s->flags |= SN_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01002046 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002047 else if (s->req->flags & CF_WRITE_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002048 s->be->be_counters.srv_aborts++;
2049 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002050 if (srv)
2051 srv->counters.srv_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002052 s->flags |= SN_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002053 }
2054 else {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002055 s->be->be_counters.srv_aborts++;
2056 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002057 if (srv)
2058 srv->counters.srv_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002059 s->flags |= SN_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002060 }
Willy Tarreau84455332009-03-15 22:34:05 +01002061 sess_set_term_flags(s);
2062 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002063 else if (s->rep->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002064 /* Report it if the server got an error or a read timeout expired */
2065 s->rep->analysers = 0;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002066 if (s->rep->flags & CF_READ_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002067 s->be->be_counters.srv_aborts++;
2068 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002069 if (srv)
2070 srv->counters.srv_aborts++;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002071 s->flags |= SN_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002072 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002073 else if (s->rep->flags & CF_READ_TIMEOUT) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002074 s->be->be_counters.srv_aborts++;
2075 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002076 if (srv)
2077 srv->counters.srv_aborts++;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002078 s->flags |= SN_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002079 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002080 else if (s->rep->flags & CF_WRITE_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002081 s->be->be_counters.cli_aborts++;
2082 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002083 if (srv)
2084 srv->counters.cli_aborts++;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002085 s->flags |= SN_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002086 }
2087 else {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002088 s->be->be_counters.cli_aborts++;
2089 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002090 if (srv)
2091 srv->counters.cli_aborts++;
Willy Tarreauae526782010-03-04 20:34:23 +01002092 s->flags |= SN_ERR_CLITO;
2093 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002094 sess_set_term_flags(s);
2095 }
Willy Tarreau84455332009-03-15 22:34:05 +01002096 }
2097
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002098 /*
2099 * Here we take care of forwarding unhandled data. This also includes
2100 * connection establishments and shutdown requests.
2101 */
2102
2103
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002104 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002105 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002106 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002107 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002108 */
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002109 if (!s->req->analysers &&
Willy Tarreaub31c9712012-11-11 23:05:39 +01002110 !(s->req->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau31971e52009-09-20 12:07:52 +02002111 (s->req->prod->state >= SI_ST_EST) &&
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002112 (s->req->to_forward != CHN_INFINITE_FORWARD)) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002113 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002114 * attached to it. If any data are left in, we'll permit them to
2115 * move.
2116 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002117 channel_auto_read(s->req);
2118 channel_auto_connect(s->req);
2119 channel_auto_close(s->req);
Willy Tarreau9b28e032012-10-12 23:49:43 +02002120 buffer_flush(s->req->buf);
Willy Tarreau5bd8c372009-01-19 00:32:22 +01002121
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002122 /* We'll let data flow between the producer (if still connected)
2123 * to the consumer (which might possibly not be connected yet).
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002124 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002125 if (!(s->req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002126 channel_forward(s->req, CHN_INFINITE_FORWARD);
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002127 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002128
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002129 /* check if it is wise to enable kernel splicing to forward request data */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002130 if (!(s->req->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002131 s->req->to_forward &&
2132 (global.tune.options & GTUNE_USE_SPLICE) &&
Willy Tarreauf2943dc2012-10-26 20:10:28 +02002133 (s->si[0].conn->xprt && s->si[0].conn->xprt->rcv_pipe && s->si[0].conn->xprt->snd_pipe) &&
2134 (s->si[1].conn->xprt && s->si[1].conn->xprt->rcv_pipe && s->si[1].conn->xprt->snd_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002135 (pipes_used < global.maxpipes) &&
2136 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_REQ) ||
2137 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002138 (s->req->flags & CF_STREAMER_FAST)))) {
2139 s->req->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002140 }
2141
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002142 /* reflect what the L7 analysers have seen last */
2143 rqf_last = s->req->flags;
2144
2145 /*
2146 * Now forward all shutdown requests between both sides of the buffer
2147 */
2148
Willy Tarreau520d95e2009-09-19 21:04:57 +02002149 /* first, let's check if the request buffer needs to shutdown(write), which may
2150 * happen either because the input is closed or because we want to force a close
Willy Tarreaue4599762010-03-21 23:25:09 +01002151 * once the server has begun to respond.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002152 */
Willy Tarreaub31c9712012-11-11 23:05:39 +01002153 if (unlikely((s->req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002154 (CF_AUTO_CLOSE|CF_SHUTR)))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002155 channel_shutw_now(s->req);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002156
2157 /* shutdown(write) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002158 if (unlikely((s->req->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
Willy Tarreau8615c2a2013-06-21 08:20:19 +02002159 channel_is_empty(s->req))) {
2160 if (s->req->flags & CF_READ_ERROR)
2161 s->req->cons->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02002162 si_shutw(s->req->cons);
Willy Tarreau8615c2a2013-06-21 08:20:19 +02002163 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002164
2165 /* shutdown(write) done on server side, we must stop the client too */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002166 if (unlikely((s->req->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW &&
Willy Tarreau3dbc6942008-12-07 13:05:04 +01002167 !s->req->analysers))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002168 channel_shutr_now(s->req);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002169
2170 /* shutdown(read) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002171 if (unlikely((s->req->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002172 if (s->req->prod->flags & SI_FL_NOHALF)
2173 s->req->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02002174 si_shutr(s->req->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002175 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002176
Willy Tarreau520d95e2009-09-19 21:04:57 +02002177 /* it's possible that an upper layer has requested a connection setup or abort.
2178 * There are 2 situations where we decide to establish a new connection :
2179 * - there are data scheduled for emission in the buffer
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002180 * - the CF_AUTO_CONNECT flag is set (active connection)
Willy Tarreau520d95e2009-09-19 21:04:57 +02002181 */
2182 if (s->req->cons->state == SI_ST_INI) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002183 if (!(s->req->flags & CF_SHUTW)) {
2184 if ((s->req->flags & CF_AUTO_CONNECT) || !channel_is_empty(s->req)) {
Willy Tarreaub24281b2011-02-13 13:16:36 +01002185 /* If we have an applet without a connect method, we immediately
Willy Tarreau85e7d002010-05-31 11:57:51 +02002186 * switch to the connected state, otherwise we perform a connection
2187 * request.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002188 */
Willy Tarreau85e7d002010-05-31 11:57:51 +02002189 s->req->cons->state = SI_ST_REQ; /* new connection requested */
Willy Tarreau070ceb62010-06-01 10:36:43 +02002190 s->req->cons->conn_retries = s->be->conn_retries;
Willy Tarreau520d95e2009-09-19 21:04:57 +02002191 }
Willy Tarreau73201222009-08-16 18:27:24 +02002192 }
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002193 else {
Willy Tarreau92795622009-03-06 12:51:23 +01002194 s->req->cons->state = SI_ST_CLO; /* shutw+ini = abort */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002195 channel_shutw_now(s->req); /* fix buffer flags upon abort */
2196 channel_shutr_now(s->rep);
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002197 }
Willy Tarreau92795622009-03-06 12:51:23 +01002198 }
2199
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002200
2201 /* we may have a pending connection request, or a connection waiting
2202 * for completion.
2203 */
2204 if (s->si[1].state >= SI_ST_REQ && s->si[1].state < SI_ST_CON) {
2205 do {
2206 /* nb: step 1 might switch from QUE to ASS, but we first want
2207 * to give a chance to step 2 to perform a redirect if needed.
2208 */
2209 if (s->si[1].state != SI_ST_REQ)
2210 sess_update_stream_int(s, &s->si[1]);
Willy Tarreau1e5dfda2013-04-07 18:19:16 +02002211 if (s->si[1].state == SI_ST_REQ) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002212 sess_prepare_conn_req(s, &s->si[1]);
2213
Willy Tarreaufac4bd12013-11-30 09:21:49 +01002214 /* applets directly go to the ESTABLISHED state */
2215 if (unlikely(s->si[1].state == SI_ST_EST))
2216 sess_establish(s, &s->si[1]);
2217
Willy Tarreau1e5dfda2013-04-07 18:19:16 +02002218 /* Now we can add the server name to a header (if requested) */
2219 /* check for HTTP mode and proxy server_name_hdr_name != NULL */
2220 if ((s->flags & SN_BE_ASSIGNED) &&
2221 (s->be->mode == PR_MODE_HTTP) &&
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01002222 (s->be->server_id_hdr_name != NULL && objt_server(s->target))) {
Willy Tarreau1e5dfda2013-04-07 18:19:16 +02002223 http_send_name_header(&s->txn, s->be, objt_server(s->target)->id);
2224 }
2225 }
2226
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002227 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01002228 if (s->si[1].state == SI_ST_ASS && srv && srv->rdr_len && (s->flags & SN_REDIRECTABLE))
Willy Tarreau71241ab2012-12-27 11:30:54 +01002229 http_perform_server_redirect(s, &s->si[1]);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002230 } while (s->si[1].state == SI_ST_ASS);
2231 }
2232
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002233 /* Benchmarks have shown that it's optimal to do a full resync now */
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002234 if (s->req->prod->state == SI_ST_DIS || s->req->cons->state == SI_ST_DIS)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002235 goto resync_stream_interface;
2236
Willy Tarreau815a9b22010-07-27 17:15:12 +02002237 /* otherwise we want to check if we need to resync the req buffer or not */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002238 if ((s->req->flags ^ rqf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002239 goto resync_request;
2240
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002241 /* perform output updates to the response buffer */
Willy Tarreau84455332009-03-15 22:34:05 +01002242
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002243 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002244 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002245 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002246 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002247 */
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002248 if (!s->rep->analysers &&
Willy Tarreaub31c9712012-11-11 23:05:39 +01002249 !(s->rep->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau31971e52009-09-20 12:07:52 +02002250 (s->rep->prod->state >= SI_ST_EST) &&
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002251 (s->rep->to_forward != CHN_INFINITE_FORWARD)) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002252 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002253 * attached to it. If any data are left in, we'll permit them to
2254 * move.
2255 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002256 channel_auto_read(s->rep);
2257 channel_auto_close(s->rep);
Willy Tarreau9b28e032012-10-12 23:49:43 +02002258 buffer_flush(s->rep->buf);
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002259
2260 /* We'll let data flow between the producer (if still connected)
2261 * to the consumer.
2262 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002263 if (!(s->rep->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002264 channel_forward(s->rep, CHN_INFINITE_FORWARD);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002265
2266 /* if we have no analyser anymore in any direction and have a
2267 * tunnel timeout set, use it now.
2268 */
2269 if (!s->req->analysers && s->be->timeout.tunnel) {
2270 s->req->rto = s->req->wto = s->rep->rto = s->rep->wto =
2271 s->be->timeout.tunnel;
2272 s->req->rex = s->req->wex = s->rep->rex = s->rep->wex =
2273 tick_add(now_ms, s->be->timeout.tunnel);
2274 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002275 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002276
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002277 /* check if it is wise to enable kernel splicing to forward response data */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002278 if (!(s->rep->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002279 s->rep->to_forward &&
2280 (global.tune.options & GTUNE_USE_SPLICE) &&
Willy Tarreauf2943dc2012-10-26 20:10:28 +02002281 (s->si[0].conn->xprt && s->si[0].conn->xprt->rcv_pipe && s->si[0].conn->xprt->snd_pipe) &&
2282 (s->si[1].conn->xprt && s->si[1].conn->xprt->rcv_pipe && s->si[1].conn->xprt->snd_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002283 (pipes_used < global.maxpipes) &&
2284 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_RTR) ||
2285 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002286 (s->rep->flags & CF_STREAMER_FAST)))) {
2287 s->rep->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002288 }
2289
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002290 /* reflect what the L7 analysers have seen last */
2291 rpf_last = s->rep->flags;
2292
2293 /*
2294 * Now forward all shutdown requests between both sides of the buffer
2295 */
2296
2297 /*
2298 * FIXME: this is probably where we should produce error responses.
2299 */
2300
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002301 /* first, let's check if the response buffer needs to shutdown(write) */
Willy Tarreaub31c9712012-11-11 23:05:39 +01002302 if (unlikely((s->rep->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002303 (CF_AUTO_CLOSE|CF_SHUTR)))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002304 channel_shutw_now(s->rep);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002305
2306 /* shutdown(write) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002307 if (unlikely((s->rep->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
Willy Tarreau8e21bb92012-08-24 22:40:29 +02002308 channel_is_empty(s->rep)))
Willy Tarreau73b013b2012-05-21 16:31:45 +02002309 si_shutw(s->rep->cons);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002310
2311 /* shutdown(write) done on the client side, we must stop the server too */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002312 if (unlikely((s->rep->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW) &&
Willy Tarreau3dbc6942008-12-07 13:05:04 +01002313 !s->rep->analysers)
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002314 channel_shutr_now(s->rep);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002315
2316 /* shutdown(read) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002317 if (unlikely((s->rep->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002318 if (s->rep->prod->flags & SI_FL_NOHALF)
2319 s->rep->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02002320 si_shutr(s->rep->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002321 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002322
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002323 if (s->req->prod->state == SI_ST_DIS || s->req->cons->state == SI_ST_DIS)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002324 goto resync_stream_interface;
2325
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002326 if (s->req->flags != rqf_last)
2327 goto resync_request;
2328
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002329 if ((s->rep->flags ^ rpf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002330 goto resync_response;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002331
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002332 /* we're interested in getting wakeups again */
2333 s->req->prod->flags &= ~SI_FL_DONT_WAKE;
2334 s->req->cons->flags &= ~SI_FL_DONT_WAKE;
2335
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002336 /* This is needed only when debugging is enabled, to indicate
2337 * client-side or server-side close. Please note that in the unlikely
2338 * event where both sides would close at once, the sequence is reported
2339 * on the server side first.
2340 */
2341 if (unlikely((global.mode & MODE_DEBUG) &&
2342 (!(global.mode & MODE_QUIET) ||
2343 (global.mode & MODE_VERBOSE)))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002344 if (s->si[1].state == SI_ST_CLO &&
2345 s->si[1].prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002346 chunk_printf(&trash, "%08x:%s.srvcls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002347 s->uniq_id, s->be->id,
Willy Tarreau7f7ad912012-11-11 19:27:15 +01002348 (unsigned short)s->si[0].conn->t.sock.fd,
2349 (unsigned short)s->si[1].conn->t.sock.fd);
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002350 if (write(1, trash.str, trash.len) < 0) /* shut gcc warning */;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002351 }
2352
2353 if (s->si[0].state == SI_ST_CLO &&
2354 s->si[0].prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002355 chunk_printf(&trash, "%08x:%s.clicls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002356 s->uniq_id, s->be->id,
Willy Tarreau7f7ad912012-11-11 19:27:15 +01002357 (unsigned short)s->si[0].conn->t.sock.fd,
2358 (unsigned short)s->si[1].conn->t.sock.fd);
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002359 if (write(1, trash.str, trash.len) < 0) /* shut gcc warning */;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002360 }
2361 }
2362
2363 if (likely((s->rep->cons->state != SI_ST_CLO) ||
2364 (s->req->cons->state > SI_ST_INI && s->req->cons->state < SI_ST_CLO))) {
2365
2366 if ((s->fe->options & PR_O_CONTSTATS) && (s->flags & SN_BE_ASSIGNED))
2367 session_process_counters(s);
2368
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002369 if (s->rep->cons->state == SI_ST_EST && obj_type(s->rep->cons->conn->target) != OBJ_TYPE_APPLET)
Willy Tarreau73b013b2012-05-21 16:31:45 +02002370 si_update(s->rep->cons);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002371
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002372 if (s->req->cons->state == SI_ST_EST && obj_type(s->req->cons->conn->target) != OBJ_TYPE_APPLET)
Willy Tarreau73b013b2012-05-21 16:31:45 +02002373 si_update(s->req->cons);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002374
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002375 s->req->flags &= ~(CF_READ_NULL|CF_READ_PARTIAL|CF_WRITE_NULL|CF_WRITE_PARTIAL|CF_READ_ATTACHED);
2376 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 +01002377 s->si[0].prev_state = s->si[0].state;
2378 s->si[1].prev_state = s->si[1].state;
Willy Tarreaub0ef7352008-12-14 13:26:20 +01002379 s->si[0].flags &= ~(SI_FL_ERR|SI_FL_EXP);
2380 s->si[1].flags &= ~(SI_FL_ERR|SI_FL_EXP);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002381
2382 /* Trick: if a request is being waiting for the server to respond,
2383 * and if we know the server can timeout, we don't want the timeout
2384 * to expire on the client side first, but we're still interested
2385 * in passing data from the client to the server (eg: POST). Thus,
2386 * we can cancel the client's request timeout if the server's
2387 * request timeout is set and the server has not yet sent a response.
2388 */
2389
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002390 if ((s->rep->flags & (CF_AUTO_CLOSE|CF_SHUTR)) == 0 &&
Willy Tarreau86491c32008-12-14 09:04:47 +01002391 (tick_isset(s->req->wex) || tick_isset(s->rep->rex))) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002392 s->req->flags |= CF_READ_NOEXP;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002393 s->req->rex = TICK_ETERNITY;
Willy Tarreau86491c32008-12-14 09:04:47 +01002394 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002395
Willy Tarreau7a20aa62010-07-13 16:30:45 +02002396 /* Call the stream interfaces' I/O handlers when embedded.
Willy Tarreau1accfc02009-09-05 20:57:35 +02002397 * Note that this one may wake the task up again.
2398 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002399 if (obj_type(s->req->cons->conn->target) == OBJ_TYPE_APPLET ||
2400 obj_type(s->rep->cons->conn->target) == OBJ_TYPE_APPLET) {
2401 if (objt_applet(s->req->cons->conn->target))
2402 objt_applet(s->req->cons->conn->target)->fct(s->req->cons);
2403 if (objt_applet(s->rep->cons->conn->target))
2404 objt_applet(s->rep->cons->conn->target)->fct(s->rep->cons);
Willy Tarreau1accfc02009-09-05 20:57:35 +02002405 if (task_in_rq(t)) {
2406 /* If we woke up, we don't want to requeue the
2407 * task to the wait queue, but rather requeue
2408 * it into the runqueue ASAP.
2409 */
2410 t->expire = TICK_ETERNITY;
2411 return t;
2412 }
2413 }
2414
Willy Tarreau798f4322012-11-08 14:49:17 +01002415 update_exp_and_leave:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002416 t->expire = tick_first(tick_first(s->req->rex, s->req->wex),
2417 tick_first(s->rep->rex, s->rep->wex));
2418 if (s->req->analysers)
2419 t->expire = tick_first(t->expire, s->req->analyse_exp);
2420
2421 if (s->si[0].exp)
2422 t->expire = tick_first(t->expire, s->si[0].exp);
2423
2424 if (s->si[1].exp)
2425 t->expire = tick_first(t->expire, s->si[1].exp);
2426
2427#ifdef DEBUG_FULL
Willy Tarreau127334e2009-03-28 10:47:26 +01002428 fprintf(stderr,
2429 "[%u] queuing with exp=%u req->rex=%u req->wex=%u req->ana_exp=%u"
2430 " rep->rex=%u rep->wex=%u, si[0].exp=%u, si[1].exp=%u, cs=%d, ss=%d\n",
2431 now_ms, t->expire, s->req->rex, s->req->wex, s->req->analyse_exp,
2432 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 +01002433#endif
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002434
2435#ifdef DEBUG_DEV
2436 /* this may only happen when no timeout is set or in case of an FSM bug */
Willy Tarreaud0a201b2009-03-08 15:53:06 +01002437 if (!tick_isset(t->expire))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002438 ABORT_NOW();
2439#endif
Willy Tarreau26c25062009-03-08 09:38:41 +01002440 return t; /* nothing more to do */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002441 }
2442
2443 s->fe->feconn--;
2444 if (s->flags & SN_BE_ASSIGNED)
2445 s->be->beconn--;
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002446 if (!(s->listener->options & LI_O_UNLIMITED))
2447 actconn--;
Willy Tarreauaf7ad002010-08-31 15:39:26 +02002448 jobs--;
Willy Tarreau6e6fb2b2009-08-16 18:20:44 +02002449 s->listener->nbconn--;
Willy Tarreau62793712011-07-24 19:23:38 +02002450 if (s->listener->state == LI_FULL)
2451 resume_listener(s->listener);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002452
Willy Tarreau08ceb102011-07-24 22:58:00 +02002453 /* Dequeues all of the listeners waiting for a resource */
2454 if (!LIST_ISEMPTY(&global_listener_queue))
2455 dequeue_all_listeners(&global_listener_queue);
2456
Willy Tarreaub32907b2011-07-25 08:37:44 +02002457 if (!LIST_ISEMPTY(&s->fe->listener_queue) &&
2458 (!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 +02002459 dequeue_all_listeners(&s->fe->listener_queue);
2460
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002461 if (unlikely((global.mode & MODE_DEBUG) &&
2462 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)))) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002463 chunk_printf(&trash, "%08x:%s.closed[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002464 s->uniq_id, s->be->id,
Willy Tarreau7f7ad912012-11-11 19:27:15 +01002465 (unsigned short)s->req->prod->conn->t.sock.fd,
2466 (unsigned short)s->req->cons->conn->t.sock.fd);
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002467 if (write(1, trash.str, trash.len) < 0) /* shut gcc warning */;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002468 }
2469
2470 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
2471 session_process_counters(s);
2472
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002473 if (s->txn.status) {
2474 int n;
2475
2476 n = s->txn.status / 100;
2477 if (n < 1 || n > 5)
2478 n = 0;
2479
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002480 if (s->fe->mode == PR_MODE_HTTP) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002481 s->fe->fe_counters.p.http.rsp[n]++;
Willy Tarreau8139b992012-11-27 07:35:31 +01002482 if (s->comp_algo && (s->flags & SN_COMP_READY))
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002483 s->fe->fe_counters.p.http.comp_rsp++;
2484 }
Willy Tarreau24657792010-02-26 10:30:28 +01002485 if ((s->flags & SN_BE_ASSIGNED) &&
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002486 (s->be->mode == PR_MODE_HTTP)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002487 s->be->be_counters.p.http.rsp[n]++;
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002488 s->be->be_counters.p.http.cum_req++;
Willy Tarreau8139b992012-11-27 07:35:31 +01002489 if (s->comp_algo && (s->flags & SN_COMP_READY))
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002490 s->be->be_counters.p.http.comp_rsp++;
2491 }
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002492 }
2493
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002494 /* let's do a final log if we need it */
Willy Tarreaud79a3b22012-12-28 09:40:16 +01002495 if (!LIST_ISEMPTY(&s->fe->logformat) && s->logs.logwait &&
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002496 !(s->flags & SN_MONITOR) &&
2497 (!(s->fe->options & PR_O_NULLNOLOG) || s->req->total)) {
Willy Tarreaua5555ec2008-11-30 19:02:32 +01002498 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002499 }
2500
2501 /* the task MUST not be in the run queue anymore */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002502 session_free(s);
Willy Tarreau26c25062009-03-08 09:38:41 +01002503 task_delete(t);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002504 task_free(t);
Willy Tarreau26c25062009-03-08 09:38:41 +01002505 return NULL;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002506}
2507
Willy Tarreau7c669d72008-06-20 15:04:11 +02002508/*
2509 * This function adjusts sess->srv_conn and maintains the previous and new
2510 * server's served session counts. Setting newsrv to NULL is enough to release
2511 * current connection slot. This function also notifies any LB algo which might
2512 * expect to be informed about any change in the number of active sessions on a
2513 * server.
2514 */
2515void sess_change_server(struct session *sess, struct server *newsrv)
2516{
2517 if (sess->srv_conn == newsrv)
2518 return;
2519
2520 if (sess->srv_conn) {
2521 sess->srv_conn->served--;
2522 if (sess->srv_conn->proxy->lbprm.server_drop_conn)
2523 sess->srv_conn->proxy->lbprm.server_drop_conn(sess->srv_conn);
Simon Hormanaf514952011-06-21 14:34:57 +09002524 session_del_srv_conn(sess);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002525 }
2526
2527 if (newsrv) {
2528 newsrv->served++;
2529 if (newsrv->proxy->lbprm.server_take_conn)
2530 newsrv->proxy->lbprm.server_take_conn(newsrv);
Simon Hormanaf514952011-06-21 14:34:57 +09002531 session_add_srv_conn(sess, newsrv);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002532 }
2533}
2534
Willy Tarreau84455332009-03-15 22:34:05 +01002535/* Handle server-side errors for default protocols. It is called whenever a a
2536 * connection setup is aborted or a request is aborted in queue. It sets the
2537 * session termination flags so that the caller does not have to worry about
2538 * them. It's installed as ->srv_error for the server-side stream_interface.
2539 */
2540void default_srv_error(struct session *s, struct stream_interface *si)
2541{
2542 int err_type = si->err_type;
2543 int err = 0, fin = 0;
2544
2545 if (err_type & SI_ET_QUEUE_ABRT) {
2546 err = SN_ERR_CLICL;
2547 fin = SN_FINST_Q;
2548 }
2549 else if (err_type & SI_ET_CONN_ABRT) {
2550 err = SN_ERR_CLICL;
2551 fin = SN_FINST_C;
2552 }
2553 else if (err_type & SI_ET_QUEUE_TO) {
2554 err = SN_ERR_SRVTO;
2555 fin = SN_FINST_Q;
2556 }
2557 else if (err_type & SI_ET_QUEUE_ERR) {
2558 err = SN_ERR_SRVCL;
2559 fin = SN_FINST_Q;
2560 }
2561 else if (err_type & SI_ET_CONN_TO) {
2562 err = SN_ERR_SRVTO;
2563 fin = SN_FINST_C;
2564 }
2565 else if (err_type & SI_ET_CONN_ERR) {
2566 err = SN_ERR_SRVCL;
2567 fin = SN_FINST_C;
2568 }
2569 else /* SI_ET_CONN_OTHER and others */ {
2570 err = SN_ERR_INTERNAL;
2571 fin = SN_FINST_C;
2572 }
2573
2574 if (!(s->flags & SN_ERR_MASK))
2575 s->flags |= err;
2576 if (!(s->flags & SN_FINST_MASK))
2577 s->flags |= fin;
2578}
Willy Tarreau7c669d72008-06-20 15:04:11 +02002579
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002580/* kill a session and set the termination flags to <why> (one of SN_ERR_*) */
2581void session_shutdown(struct session *session, int why)
2582{
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002583 if (session->req->flags & (CF_SHUTW|CF_SHUTW_NOW))
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002584 return;
2585
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002586 channel_shutw_now(session->req);
2587 channel_shutr_now(session->rep);
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002588 session->task->nice = 1024;
2589 if (!(session->flags & SN_ERR_MASK))
2590 session->flags |= why;
2591 task_wakeup(session->task, TASK_WOKEN_OTHER);
2592}
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02002593
Willy Tarreau8b22a712010-06-18 17:46:06 +02002594/************************************************************************/
2595/* All supported ACL keywords must be declared here. */
2596/************************************************************************/
2597
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002598/* Returns a pointer to a stkctr depending on the fetch keyword name.
2599 * It is designed to be called as sc[0-9]_* sc_* or src_* exclusively.
Willy Tarreaua65536c2013-07-22 22:40:11 +02002600 * sc[0-9]_* will return a pointer to the respective field in the
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002601 * session <l4>. sc_* requires an UINT argument specifying the stick
2602 * counter number. src_* will fill a locally allocated structure with
Willy Tarreaua65536c2013-07-22 22:40:11 +02002603 * the table and entry corresponding to what is specified with src_*.
Willy Tarreau0f791d42013-07-23 19:56:43 +02002604 * NULL may be returned if the designated stkctr is not tracked. For
2605 * the sc_* and sc[0-9]_* forms, an optional table argument may be
2606 * passed. When present, the currently tracked key is then looked up
2607 * in the specified table instead of the current table. The purpose is
2608 * to be able to convery multiple values per key (eg: have gpc0 from
2609 * multiple tables).
Willy Tarreaua65536c2013-07-22 22:40:11 +02002610 */
2611static struct stkctr *
2612smp_fetch_sc_stkctr(struct session *l4, const struct arg *args, const char *kw)
2613{
2614 static struct stkctr stkctr;
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002615 unsigned int num = kw[2] - '0';
Willy Tarreau0f791d42013-07-23 19:56:43 +02002616 int arg = 0;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002617
Willy Tarreau0f791d42013-07-23 19:56:43 +02002618 if (num == '_' - '0') {
2619 /* sc_* variant, args[0] = ctr# (mandatory) */
2620 num = args[arg++].data.uint;
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002621 if (num >= MAX_SESS_STKCTR)
2622 return NULL;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002623 }
Willy Tarreau0f791d42013-07-23 19:56:43 +02002624 else if (num > 9) { /* src_* variant, args[0] = table */
Willy Tarreaua65536c2013-07-22 22:40:11 +02002625 struct stktable_key *key = addr_to_stktable_key(&l4->si[0].conn->addr.from);
2626
2627 if (!key)
2628 return NULL;
2629 stkctr.table = &args->data.prx->table;
2630 stkctr.entry = stktable_lookup_key(stkctr.table, key);
2631 return &stkctr;
2632 }
Willy Tarreau0f791d42013-07-23 19:56:43 +02002633
2634 /* Here, <num> contains the counter number from 0 to 9 for
2635 * the sc[0-9]_ form, or even higher using sc_(num) if needed.
2636 * args[arg] is the first optional argument.
2637 */
2638 if (unlikely(args[arg].type == ARGT_TAB)) {
2639 /* an alternate table was specified, let's look up the same key there */
2640 stkctr.table = &args[arg].data.prx->table;
2641 stkctr.entry = stktable_lookup(stkctr.table, l4->stkctr[num].entry);
2642 return &stkctr;
2643 }
2644 return l4->stkctr[num].entry ? &l4->stkctr[num] : NULL;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002645}
2646
Willy Tarreau88821242013-07-22 18:29:29 +02002647/* set return a boolean indicating if the requested session counter is
2648 * currently being tracked or not.
2649 * Supports being called as "sc[0-9]_tracked" only.
2650 */
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002651static int
Willy Tarreau88821242013-07-22 18:29:29 +02002652smp_fetch_sc_tracked(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02002653 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002654{
2655 smp->flags = SMP_F_VOL_TEST;
2656 smp->type = SMP_T_BOOL;
Willy Tarreau88821242013-07-22 18:29:29 +02002657 smp->data.uint = !!l4->stkctr[kw[2] - '0'].entry;
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002658 return 1;
2659}
2660
Willy Tarreau30b20462013-07-22 19:46:52 +02002661/* set <smp> to the General Purpose Counter 0 value from the session's tracked
2662 * frontend counters or from the src.
2663 * Supports being called as "sc[0-9]_get_gpc0" or "src_get_gpc0" only. Value
2664 * zero is returned if the key is new.
2665 */
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002666static int
Willy Tarreau30b20462013-07-22 19:46:52 +02002667smp_fetch_sc_get_gpc0(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2668 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002669{
Willy Tarreau30b20462013-07-22 19:46:52 +02002670 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2671
2672 if (!stkctr)
2673 return 0;
2674
Willy Tarreau37406352012-04-23 16:16:37 +02002675 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002676 smp->type = SMP_T_UINT;
2677 smp->data.uint = 0;
Willy Tarreau30b20462013-07-22 19:46:52 +02002678
2679 if (stkctr->entry != NULL) {
2680 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_GPC0);
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002681 if (!ptr)
2682 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002683 smp->data.uint = stktable_data_cast(ptr, gpc0);
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002684 }
2685 return 1;
2686}
2687
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002688/* set <smp> to the General Purpose Counter 0's event rate from the session's
2689 * tracked frontend counters or from the src.
2690 * Supports being called as "sc[0-9]_gpc0_rate" or "src_gpc0_rate" only.
2691 * Value zero is returned if the key is new.
2692 */
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002693static int
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002694smp_fetch_sc_gpc0_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2695 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002696{
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002697 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2698
2699 if (!stkctr)
2700 return 0;
2701
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002702 smp->flags = SMP_F_VOL_TEST;
2703 smp->type = SMP_T_UINT;
2704 smp->data.uint = 0;
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002705 if (stkctr->entry != NULL) {
2706 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_GPC0_RATE);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002707 if (!ptr)
2708 return 0; /* parameter not stored */
2709 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, gpc0_rate),
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002710 stkctr->table->data_arg[STKTABLE_DT_GPC0_RATE].u);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002711 }
2712 return 1;
2713}
2714
Willy Tarreau710d38c2013-07-23 00:07:04 +02002715/* Increment the General Purpose Counter 0 value from the session's tracked
2716 * frontend counters and return it into temp integer.
2717 * Supports being called as "sc[0-9]_inc_gpc0" or "src_inc_gpc0" only.
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002718 */
2719static int
Willy Tarreau710d38c2013-07-23 00:07:04 +02002720smp_fetch_sc_inc_gpc0(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2721 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002722{
Willy Tarreau710d38c2013-07-23 00:07:04 +02002723 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2724
2725 if (!stkctr)
2726 return 0;
2727
Willy Tarreau37406352012-04-23 16:16:37 +02002728 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002729 smp->type = SMP_T_UINT;
2730 smp->data.uint = 0;
Willy Tarreau710d38c2013-07-23 00:07:04 +02002731 if (stkctr->entry != NULL) {
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002732 void *ptr;
2733
2734 /* First, update gpc0_rate if it's tracked. Second, update its
2735 * gpc0 if tracked. Returns gpc0's value otherwise the curr_ctr.
2736 */
Willy Tarreau710d38c2013-07-23 00:07:04 +02002737 ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_GPC0_RATE);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002738 if (ptr) {
2739 update_freq_ctr_period(&stktable_data_cast(ptr, gpc0_rate),
Willy Tarreau710d38c2013-07-23 00:07:04 +02002740 stkctr->table->data_arg[STKTABLE_DT_GPC0_RATE].u, 1);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002741 smp->data.uint = (&stktable_data_cast(ptr, gpc0_rate))->curr_ctr;
2742 }
2743
Willy Tarreau710d38c2013-07-23 00:07:04 +02002744 ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_GPC0);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002745 if (ptr)
2746 smp->data.uint = ++stktable_data_cast(ptr, gpc0);
2747
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002748 }
2749 return 1;
2750}
2751
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002752/* Clear the General Purpose Counter 0 value from the session's tracked
2753 * frontend counters and return its previous value into temp integer.
2754 * Supports being called as "sc[0-9]_clr_gpc0" or "src_clr_gpc0" only.
Willy Tarreauf73cd112011-08-13 01:45:16 +02002755 */
2756static int
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002757smp_fetch_sc_clr_gpc0(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2758 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauf73cd112011-08-13 01:45:16 +02002759{
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002760 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2761
2762 if (!stkctr)
2763 return 0;
2764
Willy Tarreau37406352012-04-23 16:16:37 +02002765 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002766 smp->type = SMP_T_UINT;
2767 smp->data.uint = 0;
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002768 if (stkctr->entry != NULL) {
2769 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_GPC0);
Willy Tarreauf73cd112011-08-13 01:45:16 +02002770 if (!ptr)
2771 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002772 smp->data.uint = stktable_data_cast(ptr, gpc0);
Willy Tarreauf73cd112011-08-13 01:45:16 +02002773 stktable_data_cast(ptr, gpc0) = 0;
2774 }
2775 return 1;
2776}
2777
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002778/* set <smp> to the cumulated number of connections from the session's tracked
2779 * frontend counters. Supports being called as "sc[0-9]_conn_cnt" or
2780 * "src_conn_cnt" only.
2781 */
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002782static int
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002783smp_fetch_sc_conn_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2784 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002785{
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002786 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2787
2788 if (!stkctr)
2789 return 0;
2790
Willy Tarreau37406352012-04-23 16:16:37 +02002791 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002792 smp->type = SMP_T_UINT;
2793 smp->data.uint = 0;
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002794 if (stkctr->entry != NULL) {
2795 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_CONN_CNT);
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002796 if (!ptr)
2797 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002798 smp->data.uint = stktable_data_cast(ptr, conn_cnt);
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002799 }
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002800 return 1;
2801}
2802
Willy Tarreauc8c65702013-07-23 15:09:35 +02002803/* set <smp> to the connection rate from the session's tracked frontend
2804 * counters. Supports being called as "sc[0-9]_conn_rate" or "src_conn_rate"
2805 * only.
2806 */
Willy Tarreau91c43d72010-06-20 11:19:22 +02002807static int
Willy Tarreauc8c65702013-07-23 15:09:35 +02002808smp_fetch_sc_conn_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2809 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau91c43d72010-06-20 11:19:22 +02002810{
Willy Tarreauc8c65702013-07-23 15:09:35 +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 Tarreauc8c65702013-07-23 15:09:35 +02002819 if (stkctr->entry != NULL) {
2820 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_CONN_RATE);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002821 if (!ptr)
2822 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002823 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, conn_rate),
Willy Tarreauc8c65702013-07-23 15:09:35 +02002824 stkctr->table->data_arg[STKTABLE_DT_CONN_RATE].u);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002825 }
2826 return 1;
2827}
2828
Willy Tarreaua5e37562011-12-16 17:06:15 +01002829/* set temp integer to the number of connections from the session's source address
Willy Tarreau8b22a712010-06-18 17:46:06 +02002830 * in the table pointed to by expr, after updating it.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02002831 * Accepts exactly 1 argument of type table.
Willy Tarreau8b22a712010-06-18 17:46:06 +02002832 */
2833static int
Willy Tarreau281c7992013-01-08 01:23:27 +01002834smp_fetch_src_updt_conn_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02002835 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau8b22a712010-06-18 17:46:06 +02002836{
2837 struct stksess *ts;
2838 struct stktable_key *key;
2839 void *ptr;
2840
Willy Tarreauf2943dc2012-10-26 20:10:28 +02002841 key = addr_to_stktable_key(&l4->si[0].conn->addr.from);
Willy Tarreau8b22a712010-06-18 17:46:06 +02002842 if (!key)
David du Colombier4f92d322011-03-24 11:09:31 +01002843 return 0;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002844
Willy Tarreau24e32d82012-04-23 23:55:44 +02002845 px = args->data.prx;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002846
Willy Tarreau1f7e9252010-06-20 12:27:21 +02002847 if ((ts = stktable_update_key(&px->table, key)) == NULL)
2848 /* entry does not exist and could not be created */
2849 return 0;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002850
2851 ptr = stktable_data_ptr(&px->table, ts, STKTABLE_DT_CONN_CNT);
2852 if (!ptr)
2853 return 0; /* parameter not stored in this table */
2854
Willy Tarreauf853c462012-04-23 18:53:56 +02002855 smp->type = SMP_T_UINT;
2856 smp->data.uint = ++stktable_data_cast(ptr, conn_cnt);
Willy Tarreau37406352012-04-23 16:16:37 +02002857 smp->flags = SMP_F_VOL_TEST;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002858 return 1;
2859}
2860
Willy Tarreauf44a5532013-07-23 15:17:53 +02002861/* set <smp> to the number of concurrent connections from the session's tracked
2862 * frontend counters. Supports being called as "sc[0-9]_conn_cur" or
2863 * "src_conn_cur" only.
2864 */
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002865static int
Willy Tarreauf44a5532013-07-23 15:17:53 +02002866smp_fetch_sc_conn_cur(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2867 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002868{
Willy Tarreauf44a5532013-07-23 15:17:53 +02002869 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2870
2871 if (!stkctr)
2872 return 0;
2873
Willy Tarreau37406352012-04-23 16:16:37 +02002874 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002875 smp->type = SMP_T_UINT;
2876 smp->data.uint = 0;
Willy Tarreauf44a5532013-07-23 15:17:53 +02002877 if (stkctr->entry != NULL) {
2878 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_CONN_CUR);
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002879 if (!ptr)
2880 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002881 smp->data.uint = stktable_data_cast(ptr, conn_cur);
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002882 }
2883 return 1;
2884}
2885
Willy Tarreau20843082013-07-23 15:35:33 +02002886/* set <smp> to the cumulated number of sessions from the session's tracked
2887 * frontend counters. Supports being called as "sc[0-9]_sess_cnt" or
2888 * "src_sess_cnt" only.
2889 */
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002890static int
Willy Tarreau20843082013-07-23 15:35:33 +02002891smp_fetch_sc_sess_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2892 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002893{
Willy Tarreau20843082013-07-23 15:35:33 +02002894 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2895
2896 if (!stkctr)
2897 return 0;
2898
Willy Tarreau37406352012-04-23 16:16:37 +02002899 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002900 smp->type = SMP_T_UINT;
2901 smp->data.uint = 0;
Willy Tarreau20843082013-07-23 15:35:33 +02002902 if (stkctr->entry != NULL) {
2903 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_SESS_CNT);
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002904 if (!ptr)
2905 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002906 smp->data.uint = stktable_data_cast(ptr, sess_cnt);
Willy Tarreauf4d17d92010-06-18 22:10:12 +02002907 }
2908 return 1;
2909}
2910
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002911/* set <smp> to the session rate from the session's tracked frontend counters.
2912 * Supports being called as "sc[0-9]_sess_rate" or "src_sess_rate" only.
2913 */
Willy Tarreau91c43d72010-06-20 11:19:22 +02002914static int
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002915smp_fetch_sc_sess_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2916 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau91c43d72010-06-20 11:19:22 +02002917{
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002918 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2919
2920 if (!stkctr)
2921 return 0;
2922
Willy Tarreau37406352012-04-23 16:16:37 +02002923 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002924 smp->type = SMP_T_UINT;
2925 smp->data.uint = 0;
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002926 if (stkctr->entry != NULL) {
2927 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_SESS_RATE);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002928 if (!ptr)
2929 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002930 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, sess_rate),
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02002931 stkctr->table->data_arg[STKTABLE_DT_SESS_RATE].u);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002932 }
2933 return 1;
2934}
2935
Willy Tarreau91200da2013-07-23 15:55:19 +02002936/* set <smp> to the cumulated number of HTTP requests from the session's tracked
2937 * frontend counters. Supports being called as "sc[0-9]_http_req_cnt" or
2938 * "src_http_req_cnt" only.
2939 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02002940static int
Willy Tarreau91200da2013-07-23 15:55:19 +02002941smp_fetch_sc_http_req_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2942 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02002943{
Willy Tarreau91200da2013-07-23 15:55:19 +02002944 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2945
2946 if (!stkctr)
2947 return 0;
2948
Willy Tarreau37406352012-04-23 16:16:37 +02002949 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002950 smp->type = SMP_T_UINT;
2951 smp->data.uint = 0;
Willy Tarreau91200da2013-07-23 15:55:19 +02002952 if (stkctr->entry != NULL) {
2953 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_HTTP_REQ_CNT);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002954 if (!ptr)
2955 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002956 smp->data.uint = stktable_data_cast(ptr, http_req_cnt);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002957 }
2958 return 1;
2959}
2960
Willy Tarreaucf477632013-07-23 16:04:37 +02002961/* set <smp> to the HTTP request rate from the session's tracked frontend
2962 * counters. Supports being called as "sc[0-9]_http_req_rate" or
2963 * "src_http_req_rate" only.
2964 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02002965static int
Willy Tarreaucf477632013-07-23 16:04:37 +02002966smp_fetch_sc_http_req_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2967 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02002968{
Willy Tarreaucf477632013-07-23 16:04:37 +02002969 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2970
2971 if (!stkctr)
2972 return 0;
2973
Willy Tarreau37406352012-04-23 16:16:37 +02002974 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002975 smp->type = SMP_T_UINT;
2976 smp->data.uint = 0;
Willy Tarreaucf477632013-07-23 16:04:37 +02002977 if (stkctr->entry != NULL) {
2978 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_HTTP_REQ_RATE);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002979 if (!ptr)
2980 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002981 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, http_req_rate),
Willy Tarreaucf477632013-07-23 16:04:37 +02002982 stkctr->table->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u);
Willy Tarreauda7ff642010-06-23 11:44:09 +02002983 }
2984 return 1;
2985}
2986
Willy Tarreau30d07c32013-07-23 16:45:38 +02002987/* set <smp> to the cumulated number of HTTP requests errors from the session's
2988 * tracked frontend counters. Supports being called as "sc[0-9]_http_err_cnt" or
2989 * "src_http_err_cnt" only.
2990 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02002991static int
Willy Tarreau30d07c32013-07-23 16:45:38 +02002992smp_fetch_sc_http_err_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2993 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02002994{
Willy Tarreau30d07c32013-07-23 16:45:38 +02002995 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2996
2997 if (!stkctr)
2998 return 0;
2999
Willy Tarreau37406352012-04-23 16:16:37 +02003000 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003001 smp->type = SMP_T_UINT;
3002 smp->data.uint = 0;
Willy Tarreau30d07c32013-07-23 16:45:38 +02003003 if (stkctr->entry != NULL) {
3004 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_HTTP_ERR_CNT);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003005 if (!ptr)
3006 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003007 smp->data.uint = stktable_data_cast(ptr, http_err_cnt);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003008 }
3009 return 1;
3010}
3011
Willy Tarreau9daf2622013-07-23 16:48:54 +02003012/* set <smp> to the HTTP request error rate from the session's tracked frontend
3013 * counters. Supports being called as "sc[0-9]_http_err_rate" or
3014 * "src_http_err_rate" only.
3015 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02003016static int
Willy Tarreau9daf2622013-07-23 16:48:54 +02003017smp_fetch_sc_http_err_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3018 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02003019{
Willy Tarreau9daf2622013-07-23 16:48:54 +02003020 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3021
3022 if (!stkctr)
3023 return 0;
3024
Willy Tarreau37406352012-04-23 16:16:37 +02003025 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003026 smp->type = SMP_T_UINT;
3027 smp->data.uint = 0;
Willy Tarreau9daf2622013-07-23 16:48:54 +02003028 if (stkctr->entry != NULL) {
3029 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_HTTP_ERR_RATE);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003030 if (!ptr)
3031 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003032 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, http_err_rate),
Willy Tarreau9daf2622013-07-23 16:48:54 +02003033 stkctr->table->data_arg[STKTABLE_DT_HTTP_ERR_RATE].u);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003034 }
3035 return 1;
3036}
3037
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003038/* set <smp> to the number of kbytes received from clients, as found in the
3039 * session's tracked frontend counters. Supports being called as
3040 * "sc[0-9]_kbytes_in" or "src_kbytes_in" only.
3041 */
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003042static int
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003043smp_fetch_sc_kbytes_in(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3044 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003045{
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003046 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3047
3048 if (!stkctr)
3049 return 0;
3050
Willy Tarreau37406352012-04-23 16:16:37 +02003051 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003052 smp->type = SMP_T_UINT;
3053 smp->data.uint = 0;
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003054 if (stkctr->entry != NULL) {
3055 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_BYTES_IN_CNT);
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003056 if (!ptr)
3057 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003058 smp->data.uint = stktable_data_cast(ptr, bytes_in_cnt) >> 10;
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003059 }
3060 return 1;
3061}
3062
Willy Tarreau613fe992013-07-23 17:39:19 +02003063/* set <smp> to the data rate received from clients in bytes/s, as found
3064 * in the session's tracked frontend counters. Supports being called as
3065 * "sc[0-9]_bytes_in_rate" or "src_bytes_in_rate" only.
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003066 */
3067static int
Willy Tarreau613fe992013-07-23 17:39:19 +02003068smp_fetch_sc_bytes_in_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3069 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003070{
Willy Tarreau613fe992013-07-23 17:39:19 +02003071 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3072
3073 if (!stkctr)
3074 return 0;
3075
Willy Tarreau37406352012-04-23 16:16:37 +02003076 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003077 smp->type = SMP_T_UINT;
3078 smp->data.uint = 0;
Willy Tarreau613fe992013-07-23 17:39:19 +02003079 if (stkctr->entry != NULL) {
3080 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_BYTES_IN_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003081 if (!ptr)
3082 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003083 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, bytes_in_rate),
Willy Tarreau613fe992013-07-23 17:39:19 +02003084 stkctr->table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003085 }
3086 return 1;
3087}
3088
Willy Tarreau53aea102013-07-23 17:39:02 +02003089/* set <smp> to the number of kbytes sent to clients, as found in the
3090 * session's tracked frontend counters. Supports being called as
3091 * "sc[0-9]_kbytes_out" or "src_kbytes_out" only.
3092 */
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003093static int
Willy Tarreau53aea102013-07-23 17:39:02 +02003094smp_fetch_sc_kbytes_out(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3095 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003096{
Willy Tarreau53aea102013-07-23 17:39:02 +02003097 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3098
3099 if (!stkctr)
3100 return 0;
3101
Willy Tarreau37406352012-04-23 16:16:37 +02003102 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003103 smp->type = SMP_T_UINT;
3104 smp->data.uint = 0;
Willy Tarreau53aea102013-07-23 17:39:02 +02003105 if (stkctr->entry != NULL) {
3106 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_BYTES_OUT_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003107 if (!ptr)
3108 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003109 smp->data.uint = stktable_data_cast(ptr, bytes_out_cnt) >> 10;
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003110 }
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003111 return 1;
3112}
3113
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003114/* set <smp> to the data rate sent to clients in bytes/s, as found in the
3115 * session's tracked frontend counters. Supports being called as
3116 * "sc[0-9]_bytes_out_rate" or "src_bytes_out_rate" only.
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003117 */
3118static int
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003119smp_fetch_sc_bytes_out_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3120 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003121{
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003122 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3123
3124 if (!stkctr)
3125 return 0;
3126
Willy Tarreau37406352012-04-23 16:16:37 +02003127 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003128 smp->type = SMP_T_UINT;
3129 smp->data.uint = 0;
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003130 if (stkctr->entry != NULL) {
3131 void *ptr = stktable_data_ptr(stkctr->table, stkctr->entry, STKTABLE_DT_BYTES_OUT_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003132 if (!ptr)
3133 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003134 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, bytes_out_rate),
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003135 stkctr->table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003136 }
3137 return 1;
3138}
3139
Willy Tarreau563eef42013-07-23 18:32:02 +02003140/* set <smp> to the number of active trackers on the SC entry in the session's
3141 * tracked frontend counters. Supports being called as "sc[0-9]_trackers" only.
3142 */
Willy Tarreau2406db42012-12-09 12:16:43 +01003143static int
Willy Tarreau563eef42013-07-23 18:32:02 +02003144smp_fetch_sc_trackers(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02003145 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau2406db42012-12-09 12:16:43 +01003146{
Willy Tarreau563eef42013-07-23 18:32:02 +02003147 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
Willy Tarreau2406db42012-12-09 12:16:43 +01003148
Willy Tarreau563eef42013-07-23 18:32:02 +02003149 if (!stkctr)
Willy Tarreau2406db42012-12-09 12:16:43 +01003150 return 0;
3151
Willy Tarreau563eef42013-07-23 18:32:02 +02003152 smp->flags = SMP_F_VOL_TEST;
3153 smp->type = SMP_T_UINT;
3154 smp->data.uint = stkctr->entry->ref_cnt;
3155 return 1;
Willy Tarreaue25c9172013-05-28 18:32:20 +02003156}
3157
Willy Tarreau34db1082012-04-19 17:16:54 +02003158/* set temp integer to the number of used entries in the table pointed to by expr.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02003159 * Accepts exactly 1 argument of type table.
Willy Tarreau34db1082012-04-19 17:16:54 +02003160 */
Willy Tarreauc735a072011-03-29 00:57:02 +02003161static int
Willy Tarreau281c7992013-01-08 01:23:27 +01003162smp_fetch_table_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02003163 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc735a072011-03-29 00:57:02 +02003164{
Willy Tarreau37406352012-04-23 16:16:37 +02003165 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003166 smp->type = SMP_T_UINT;
Willy Tarreau24e32d82012-04-23 23:55:44 +02003167 smp->data.uint = args->data.prx->table.current;
Willy Tarreauc735a072011-03-29 00:57:02 +02003168 return 1;
3169}
3170
Willy Tarreau34db1082012-04-19 17:16:54 +02003171/* set temp integer to the number of free entries in the table pointed to by expr.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02003172 * Accepts exactly 1 argument of type table.
Willy Tarreau34db1082012-04-19 17:16:54 +02003173 */
Willy Tarreauc735a072011-03-29 00:57:02 +02003174static int
Willy Tarreau281c7992013-01-08 01:23:27 +01003175smp_fetch_table_avl(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02003176 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc735a072011-03-29 00:57:02 +02003177{
Willy Tarreau24e32d82012-04-23 23:55:44 +02003178 px = args->data.prx;
Willy Tarreau37406352012-04-23 16:16:37 +02003179 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003180 smp->type = SMP_T_UINT;
3181 smp->data.uint = px->table.size - px->table.current;
Willy Tarreauc735a072011-03-29 00:57:02 +02003182 return 1;
3183}
Willy Tarreau8b22a712010-06-18 17:46:06 +02003184
Willy Tarreau61612d42012-04-19 18:42:05 +02003185/* Note: must not be declared <const> as its list will be overwritten.
3186 * Please take care of keeping this list alphabetically sorted.
3187 */
Willy Tarreaudc13c112013-06-21 23:16:39 +02003188static struct acl_kw_list acl_kws = {ILH, {
Willy Tarreau281c7992013-01-08 01:23:27 +01003189 { /* END */ },
Willy Tarreau8b22a712010-06-18 17:46:06 +02003190}};
3191
Willy Tarreau281c7992013-01-08 01:23:27 +01003192/* Note: must not be declared <const> as its list will be overwritten.
3193 * Please take care of keeping this list alphabetically sorted.
3194 */
Willy Tarreaudc13c112013-06-21 23:16:39 +02003195static struct sample_fetch_kw_list smp_fetch_keywords = {ILH, {
Willy Tarreau0f791d42013-07-23 19:56:43 +02003196 { "sc_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3197 { "sc_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3198 { "sc_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3199 { "sc_conn_cnt", smp_fetch_sc_conn_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3200 { "sc_conn_cur", smp_fetch_sc_conn_cur, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3201 { "sc_conn_rate", smp_fetch_sc_conn_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3202 { "sc_get_gpc0", smp_fetch_sc_get_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3203 { "sc_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3204 { "sc_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3205 { "sc_http_err_rate", smp_fetch_sc_http_err_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3206 { "sc_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3207 { "sc_http_req_rate", smp_fetch_sc_http_req_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3208 { "sc_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3209 { "sc_kbytes_in", smp_fetch_sc_kbytes_in, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3210 { "sc_kbytes_out", smp_fetch_sc_kbytes_out, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3211 { "sc_sess_cnt", smp_fetch_sc_sess_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3212 { "sc_sess_rate", smp_fetch_sc_sess_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3213 { "sc_tracked", smp_fetch_sc_tracked, ARG2(1,UINT,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3214 { "sc_trackers", smp_fetch_sc_trackers, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3215 { "sc0_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3216 { "sc0_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3217 { "sc0_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3218 { "sc0_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3219 { "sc0_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3220 { "sc0_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3221 { "sc0_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3222 { "sc0_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3223 { "sc0_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3224 { "sc0_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3225 { "sc0_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3226 { "sc0_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3227 { "sc0_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3228 { "sc0_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3229 { "sc0_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3230 { "sc0_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3231 { "sc0_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3232 { "sc0_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3233 { "sc0_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3234 { "sc1_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3235 { "sc1_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3236 { "sc1_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3237 { "sc1_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3238 { "sc1_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3239 { "sc1_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3240 { "sc1_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3241 { "sc1_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3242 { "sc1_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3243 { "sc1_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3244 { "sc1_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3245 { "sc1_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3246 { "sc1_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3247 { "sc1_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3248 { "sc1_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3249 { "sc1_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3250 { "sc1_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3251 { "sc1_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3252 { "sc1_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3253 { "sc2_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3254 { "sc2_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3255 { "sc2_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3256 { "sc2_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3257 { "sc2_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3258 { "sc2_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3259 { "sc2_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3260 { "sc2_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3261 { "sc2_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3262 { "sc2_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3263 { "sc2_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3264 { "sc2_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3265 { "sc2_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3266 { "sc2_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3267 { "sc2_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3268 { "sc2_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3269 { "sc2_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3270 { "sc2_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3271 { "sc2_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3272 { "src_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3273 { "src_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3274 { "src_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3275 { "src_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3276 { "src_conn_cur", smp_fetch_sc_conn_cur, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3277 { "src_conn_rate", smp_fetch_sc_conn_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3278 { "src_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3279 { "src_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3280 { "src_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3281 { "src_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3282 { "src_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3283 { "src_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3284 { "src_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3285 { "src_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3286 { "src_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3287 { "src_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3288 { "src_sess_rate", smp_fetch_sc_sess_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3289 { "src_updt_conn_cnt", smp_fetch_src_updt_conn_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3290 { "table_avl", smp_fetch_table_avl, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3291 { "table_cnt", smp_fetch_table_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
Willy Tarreau281c7992013-01-08 01:23:27 +01003292 { /* END */ },
3293}};
3294
Willy Tarreau8b22a712010-06-18 17:46:06 +02003295__attribute__((constructor))
3296static void __session_init(void)
3297{
Willy Tarreau281c7992013-01-08 01:23:27 +01003298 sample_register_fetches(&smp_fetch_keywords);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003299 acl_register_keywords(&acl_kws);
3300}
3301
Willy Tarreaubaaee002006-06-26 02:48:02 +02003302/*
3303 * Local variables:
3304 * c-indent-level: 8
3305 * c-basic-offset: 8
3306 * End:
3307 */