blob: 6e4c0753ef27d26a452f1412704168e74a937e94 [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{
Willy Tarreaub363a1f2013-10-01 10:45:07 +020075 struct connection *cli_conn;
Willy Tarreau81f9aa32010-06-01 17:45:26 +020076 struct proxy *p = l->frontend;
77 struct session *s;
Willy Tarreau81f9aa32010-06-01 17:45:26 +020078 struct task *t;
Willy Tarreauabe8ea52010-11-11 10:56:04 +010079 int ret;
80
81
82 ret = -1; /* assume unrecoverable error by default */
Willy Tarreau81f9aa32010-06-01 17:45:26 +020083
Willy Tarreau32e3c6a2013-10-11 19:34:20 +020084 if (unlikely((cli_conn = conn_new()) == NULL))
Willy Tarreau81f9aa32010-06-01 17:45:26 +020085 goto out_close;
Willy Tarreau81f9aa32010-06-01 17:45:26 +020086
Willy Tarreau32e3c6a2013-10-11 19:34:20 +020087 conn_prepare(cli_conn, l->proto, l->xprt);
Willy Tarreauf2943dc2012-10-26 20:10:28 +020088
Willy Tarreau32e3c6a2013-10-11 19:34:20 +020089 cli_conn->t.sock.fd = cfd;
90 cli_conn->addr.from = *addr;
91 cli_conn->flags |= CO_FL_ADDR_FROM_SET;
92 cli_conn->target = &l->obj_type;
93
94 if (unlikely((s = pool_alloc2(pool2_session)) == NULL))
95 goto out_free_conn;
Willy Tarreauf2943dc2012-10-26 20:10:28 +020096
Willy Tarreau2542b532012-08-31 16:01:23 +020097 /* minimum session initialization required for an embryonic session is
98 * fairly low. We need very little to execute L4 ACLs, then we need a
99 * task to make the client-side connection live on its own.
100 * - flags
101 * - stick-entry tracking
102 */
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200103 s->flags = 0;
104 s->logs.logwait = p->to_log;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200105 s->logs.level = 0;
Willy Tarreaud5ca9ab2013-05-28 17:40:25 +0200106
107 memset(s->stkctr, 0, sizeof(s->stkctr));
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200108
Willy Tarreau2542b532012-08-31 16:01:23 +0200109 s->listener = l;
110 s->fe = p;
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100111
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200112 /* On a mini-session, the connection is directly attached to the
113 * session's target so that we don't need to initialize the stream
114 * interfaces. Another benefit is that it's easy to detect a mini-
115 * session in dumps using this : it's the only one which has a
116 * connection in s->target.
117 */
118 s->target = &cli_conn->obj_type;
119
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200120 s->logs.accept_date = date; /* user-visible date for logging */
121 s->logs.tv_accept = now; /* corrected date for internal use */
Willy Tarreau1f0da242014-01-25 11:01:50 +0100122 s->uniq_id = global.req_count++;
Willy Tarreau2542b532012-08-31 16:01:23 +0200123 p->feconn++;
124 /* This session was accepted, count it now */
125 if (p->feconn > p->fe_counters.conn_max)
126 p->fe_counters.conn_max = p->feconn;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200127
Willy Tarreau2542b532012-08-31 16:01:23 +0200128 proxy_inc_fe_conn_ctr(l, p);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200129
Willy Tarreau59e3ff42013-12-16 02:16:50 +0100130 /* Add the minimum callbacks to prepare the connection's control layer.
131 * We need this so that we can safely execute the ACLs used by the
132 * "tcp-request connection" ruleset. We also carefully attach the
133 * connection to the stream interface without initializing the rest,
134 * so that ACLs can use si[0]->end.
135 */
136 si_attach_conn(&s->si[0], cli_conn);
137 conn_attach(cli_conn, s, &sess_conn_cb);
138 conn_ctrl_init(cli_conn);
139
Willy Tarreau2cff2f72013-12-16 10:12:54 +0100140 /* now evaluate the tcp-request layer4 rules. Since we expect to be able
141 * to abort right here as soon as possible, we check the rules before
142 * even initializing the stream interfaces.
143 */
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200144 if ((l->options & LI_O_TCP_RULES) && !tcp_exec_req_rules(s)) {
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200145 /* let's do a no-linger now to close with a single RST. */
146 setsockopt(cfd, SOL_SOCKET, SO_LINGER, (struct linger *) &nolinger, sizeof(struct linger));
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100147 ret = 0; /* successful termination */
Willy Tarreau2542b532012-08-31 16:01:23 +0200148 goto out_free_session;
149 }
150
Willy Tarreau82569f92012-09-27 23:48:56 +0200151 /* monitor-net and health mode are processed immediately after TCP
152 * connection rules. This way it's possible to block them, but they
153 * never use the lower data layers, they send directly over the socket,
154 * as they were designed for. We first flush the socket receive buffer
155 * in order to avoid emission of an RST by the system. We ignore any
156 * error.
157 */
158 if (unlikely((p->mode == PR_MODE_HEALTH) ||
159 ((l->options & LI_O_CHK_MONNET) &&
160 addr->ss_family == AF_INET &&
161 (((struct sockaddr_in *)addr)->sin_addr.s_addr & p->mon_mask.s_addr) == p->mon_net.s_addr))) {
162 /* we have 4 possibilities here :
163 * - HTTP mode, from monitoring address => send "HTTP/1.0 200 OK"
164 * - HEALTH mode with HTTP check => send "HTTP/1.0 200 OK"
165 * - HEALTH mode without HTTP check => just send "OK"
166 * - TCP mode from monitoring address => just close
167 */
Willy Tarreau2b57cb82013-06-10 19:56:38 +0200168 if (l->proto->drain)
169 l->proto->drain(cfd);
Willy Tarreau82569f92012-09-27 23:48:56 +0200170 if (p->mode == PR_MODE_HTTP ||
171 (p->mode == PR_MODE_HEALTH && (p->options2 & PR_O2_CHK_ANY) == PR_O2_HTTP_CHK))
172 send(cfd, "HTTP/1.0 200 OK\r\n\r\n", 19, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_MORE);
173 else if (p->mode == PR_MODE_HEALTH)
174 send(cfd, "OK\n", 3, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_MORE);
175 ret = 0;
176 goto out_free_session;
177 }
178
Willy Tarreau22cda212012-08-31 17:43:29 +0200179 /* wait for a PROXY protocol header */
180 if (l->options & LI_O_ACC_PROXY) {
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200181 cli_conn->flags |= CO_FL_ACCEPT_PROXY;
182 conn_sock_want_recv(cli_conn);
Willy Tarreau22cda212012-08-31 17:43:29 +0200183 }
184
Willy Tarreau2542b532012-08-31 16:01:23 +0200185 if (unlikely((t = task_new()) == NULL))
186 goto out_free_session;
187
188 t->context = s;
189 t->nice = l->nice;
190 s->task = t;
191
Willy Tarreau59e3ff42013-12-16 02:16:50 +0100192 /* Finish setting the callbacks. Right now the transport layer is present
Willy Tarreauf7bc57c2012-10-03 00:19:48 +0200193 * but not initialized. Also note we need to be careful as the stream
194 * int is not initialized yet.
Willy Tarreau2542b532012-08-31 16:01:23 +0200195 */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200196 conn_data_want_recv(cli_conn);
197 if (conn_xprt_init(cli_conn) < 0)
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100198 goto out_free_task;
Willy Tarreau2542b532012-08-31 16:01:23 +0200199
200 /* OK, now either we have a pending handshake to execute with and
201 * then we must return to the I/O layer, or we can proceed with the
202 * end of the session initialization. In case of handshake, we also
203 * set the I/O timeout to the frontend's client timeout.
204 */
205
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200206 if (cli_conn->flags & CO_FL_HANDSHAKE) {
Willy Tarreau2542b532012-08-31 16:01:23 +0200207 t->process = expire_mini_session;
208 t->expire = tick_add_ifset(now_ms, p->timeout.client);
209 task_queue(t);
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200210 cli_conn->flags |= CO_FL_INIT_DATA | CO_FL_WAKE_DATA;
Willy Tarreau2542b532012-08-31 16:01:23 +0200211 return 1;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200212 }
213
Willy Tarreau815f5ec2012-11-06 00:14:25 +0100214 /* OK let's complete session initialization since there is no handshake */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200215 cli_conn->flags |= CO_FL_CONNECTED;
Willy Tarreau2542b532012-08-31 16:01:23 +0200216 ret = session_complete(s);
217 if (ret > 0)
218 return ret;
219
220 /* Error unrolling */
221 out_free_task:
222 task_free(t);
223 out_free_session:
224 p->feconn--;
Willy Tarreaue9101692014-01-28 22:48:24 +0100225 session_store_counters(s);
Willy Tarreau2542b532012-08-31 16:01:23 +0200226 pool_free2(pool2_session, s);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200227 out_free_conn:
228 cli_conn->flags &= ~CO_FL_XPRT_TRACKED;
229 conn_xprt_close(cli_conn);
230 conn_free(cli_conn);
Willy Tarreau2542b532012-08-31 16:01:23 +0200231 out_close:
Willy Tarreauf7bc57c2012-10-03 00:19:48 +0200232 if (ret < 0 && l->xprt == &raw_sock && p->mode == PR_MODE_HTTP) {
Willy Tarreau2542b532012-08-31 16:01:23 +0200233 /* critical error, no more memory, try to emit a 500 response */
Willy Tarreau05bf5e12013-10-20 23:10:28 +0200234 struct chunk *err_msg = &p->errmsg[HTTP_ERR_500];
235 if (!err_msg->str)
236 err_msg = &http_err_chunks[HTTP_ERR_500];
Willy Tarreau2542b532012-08-31 16:01:23 +0200237 send(cfd, err_msg->str, err_msg->len, MSG_DONTWAIT|MSG_NOSIGNAL);
238 }
239
240 if (fdtab[cfd].owner)
241 fd_delete(cfd);
242 else
243 close(cfd);
244 return ret;
245}
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100246
Willy Tarreau0af29122012-12-03 15:35:00 +0100247
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200248/* prepare the trash with a log prefix for session <s>. It only works with
Willy Tarreaub4f98092014-05-08 21:06:11 +0200249 * embryonic sessions based on a real connection. This function requires that
250 * at s->target still points to the incoming connection.
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200251 */
Willy Tarreau0af29122012-12-03 15:35:00 +0100252static void prepare_mini_sess_log_prefix(struct session *s)
253{
254 struct tm tm;
255 char pn[INET6_ADDRSTRLEN];
256 int ret;
257 char *end;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200258 struct connection *cli_conn = __objt_conn(s->target);
Willy Tarreau0af29122012-12-03 15:35:00 +0100259
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200260 ret = addr_to_str(&cli_conn->addr.from, pn, sizeof(pn));
Willy Tarreau0af29122012-12-03 15:35:00 +0100261 if (ret <= 0)
262 chunk_printf(&trash, "unknown [");
263 else if (ret == AF_UNIX)
264 chunk_printf(&trash, "%s:%d [", pn, s->listener->luid);
265 else
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200266 chunk_printf(&trash, "%s:%d [", pn, get_host_port(&cli_conn->addr.from));
Willy Tarreau0af29122012-12-03 15:35:00 +0100267
268 get_localtime(s->logs.accept_date.tv_sec, &tm);
269 end = date2str_log(trash.str + trash.len, &tm, &(s->logs.accept_date), trash.size - trash.len);
270 trash.len = end - trash.str;
271 if (s->listener->name)
272 chunk_appendf(&trash, "] %s/%s", s->fe->id, s->listener->name);
273 else
274 chunk_appendf(&trash, "] %s/%d", s->fe->id, s->listener->luid);
275}
276
Willy Tarreau2542b532012-08-31 16:01:23 +0200277/* This function kills an existing embryonic session. It stops the connection's
Willy Tarreauf7bc57c2012-10-03 00:19:48 +0200278 * transport layer, releases assigned resources, resumes the listener if it was
Willy Tarreaub4f98092014-05-08 21:06:11 +0200279 * disabled and finally kills the file descriptor. This function requires that
280 * at s->target still points to the incoming connection.
Willy Tarreau2542b532012-08-31 16:01:23 +0200281 */
282static void kill_mini_session(struct session *s)
283{
Willy Tarreau0af29122012-12-03 15:35:00 +0100284 int level = LOG_INFO;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200285 struct connection *conn = __objt_conn(s->target);
Willy Tarreau0af29122012-12-03 15:35:00 +0100286 unsigned int log = s->logs.logwait;
287 const char *err_msg;
288
289 if (s->fe->options2 & PR_O2_LOGERRORS)
290 level = LOG_ERR;
291
292 if (log && (s->fe->options & PR_O_NULLNOLOG)) {
293 /* with "option dontlognull", we don't log connections with no transfer */
Willy Tarreau8e3bf692012-12-03 15:41:18 +0100294 if (!conn->err_code ||
Willy Tarreau20879a02012-12-03 16:32:10 +0100295 conn->err_code == CO_ER_PRX_EMPTY || conn->err_code == CO_ER_PRX_ABORT ||
296 conn->err_code == CO_ER_SSL_EMPTY || conn->err_code == CO_ER_SSL_ABORT)
Willy Tarreau0af29122012-12-03 15:35:00 +0100297 log = 0;
298 }
299
300 if (log) {
301 if (!conn->err_code && (s->task->state & TASK_WOKEN_TIMER)) {
302 if (conn->flags & CO_FL_ACCEPT_PROXY)
303 conn->err_code = CO_ER_PRX_TIMEOUT;
304 else if (conn->flags & CO_FL_SSL_WAIT_HS)
305 conn->err_code = CO_ER_SSL_TIMEOUT;
306 }
307
308 prepare_mini_sess_log_prefix(s);
309 err_msg = conn_err_code_str(conn);
310 if (err_msg)
311 send_log(s->fe, level, "%s: %s\n", trash.str, err_msg);
312 else
313 send_log(s->fe, level, "%s: unknown connection error (code=%d flags=%08x)\n",
314 trash.str, conn->err_code, conn->flags);
315 }
316
Willy Tarreau2542b532012-08-31 16:01:23 +0200317 /* kill the connection now */
Willy Tarreauf79c8172013-10-21 16:30:56 +0200318 conn_force_close(conn);
Willy Tarreaua23ee3a2014-02-05 00:18:47 +0100319 conn_free(conn);
Willy Tarreau2542b532012-08-31 16:01:23 +0200320
321 s->fe->feconn--;
Willy Tarreau7af7d592013-07-01 18:07:03 +0200322 session_store_counters(s);
Willy Tarreau2542b532012-08-31 16:01:23 +0200323
324 if (!(s->listener->options & LI_O_UNLIMITED))
325 actconn--;
326 jobs--;
327 s->listener->nbconn--;
328 if (s->listener->state == LI_FULL)
329 resume_listener(s->listener);
330
331 /* Dequeues all of the listeners waiting for a resource */
332 if (!LIST_ISEMPTY(&global_listener_queue))
333 dequeue_all_listeners(&global_listener_queue);
334
335 if (!LIST_ISEMPTY(&s->fe->listener_queue) &&
336 (!s->fe->fe_sps_lim || freq_ctr_remain(&s->fe->fe_sess_per_sec, s->fe->fe_sps_lim, 0) > 0))
337 dequeue_all_listeners(&s->fe->listener_queue);
338
339 task_delete(s->task);
340 task_free(s->task);
Willy Tarreau2542b532012-08-31 16:01:23 +0200341 pool_free2(pool2_session, s);
342}
343
Willy Tarreau22cda212012-08-31 17:43:29 +0200344/* Finish initializing a session from a connection, or kills it if the
345 * connection shows and error. Returns <0 if the connection was killed.
Willy Tarreau2542b532012-08-31 16:01:23 +0200346 */
Willy Tarreau071e1372012-10-03 01:39:48 +0200347static int conn_session_complete(struct connection *conn)
Willy Tarreau2542b532012-08-31 16:01:23 +0200348{
Willy Tarreau5e75e272012-10-02 21:21:20 +0200349 struct session *s = conn->owner;
Willy Tarreau2542b532012-08-31 16:01:23 +0200350
Willy Tarreau22cda212012-08-31 17:43:29 +0200351 if (!(conn->flags & CO_FL_ERROR) && (session_complete(s) > 0)) {
Willy Tarreau071e1372012-10-03 01:39:48 +0200352 conn->flags &= ~CO_FL_INIT_DATA;
Willy Tarreau2542b532012-08-31 16:01:23 +0200353 return 0;
354 }
355
356 /* kill the connection now */
357 kill_mini_session(s);
358 return -1;
359}
360
Willy Tarreau9683e9a2012-10-03 21:17:23 +0200361/* Update an embryonic session status. The connection is killed in case of
362 * error, and <0 will be returned. Otherwise it does nothing.
363 */
364static int conn_session_update(struct connection *conn)
365{
366 if (conn->flags & CO_FL_ERROR) {
367 kill_mini_session(conn->owner);
368 return -1;
369 }
370 return 0;
371}
372
Willy Tarreau2542b532012-08-31 16:01:23 +0200373/* Manages embryonic sessions timeout. It is only called when the timeout
374 * strikes and performs the required cleanup.
375 */
376static struct task *expire_mini_session(struct task *t)
377{
378 struct session *s = t->context;
379
380 if (!(t->state & TASK_WOKEN_TIMER))
381 return t;
382
383 kill_mini_session(s);
384 return NULL;
385}
386
387/* This function is called from the I/O handler which detects the end of
388 * handshake, in order to complete initialization of a valid session. It must
389 * be called with an embryonic session. It returns a positive value upon
390 * success, 0 if the connection can be ignored, or a negative value upon
391 * critical failure. The accepted file descriptor is closed if we return <= 0.
Willy Tarreaub4f98092014-05-08 21:06:11 +0200392 * The client-side end point is assumed to be a connection, whose pointer is
393 * taken from s->target which is assumed to be valid. If the function fails,
394 * it restores s->target.
Willy Tarreau2542b532012-08-31 16:01:23 +0200395 */
396int session_complete(struct session *s)
397{
398 struct listener *l = s->listener;
399 struct proxy *p = s->fe;
400 struct http_txn *txn;
401 struct task *t = s->task;
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200402 struct connection *conn = __objt_conn(s->target);
Willy Tarreau2542b532012-08-31 16:01:23 +0200403 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 Tarreauf8a49ea2013-10-14 21:32:07 +0200411
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200412 s->flags |= SN_INITIALIZED;
Willy Tarreau2542b532012-08-31 16:01:23 +0200413 s->unique_id = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200414
415 t->process = l->handler;
416 t->context = s;
417 t->expire = TICK_ETERNITY;
418
419 /* Note: initially, the session's backend points to the frontend.
420 * This changes later when switching rules are executed or
421 * when the default backend is assigned.
422 */
423 s->be = s->fe;
424 s->req = s->rep = NULL; /* will be allocated later */
William Lallemand82fe75c2012-10-23 10:25:10 +0200425 s->comp_algo = NULL;
Willy Tarreau2542b532012-08-31 16:01:23 +0200426
427 /* Let's count a session now */
Willy Tarreaub36b4242010-06-04 20:59:39 +0200428 proxy_inc_fe_sess_ctr(l, p);
Willy Tarreau91c43d72010-06-20 11:19:22 +0200429
Willy Tarreaub4c84932013-07-23 19:15:30 +0200430 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200431 void *ptr;
432
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100433 if (!stkctr_entry(&s->stkctr[i]))
Willy Tarreau20d46a52012-12-09 15:55:40 +0100434 continue;
435
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100436 ptr = stktable_data_ptr(s->stkctr[i].table, stkctr_entry(&s->stkctr[i]), STKTABLE_DT_SESS_CNT);
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200437 if (ptr)
438 stktable_data_cast(ptr, sess_cnt)++;
439
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100440 ptr = stktable_data_ptr(s->stkctr[i].table, stkctr_entry(&s->stkctr[i]), STKTABLE_DT_SESS_RATE);
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200441 if (ptr)
442 update_freq_ctr_period(&stktable_data_cast(ptr, sess_rate),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100443 s->stkctr[i].table->data_arg[STKTABLE_DT_SESS_RATE].u, 1);
Willy Tarreau9e9879a2010-08-06 15:25:22 +0200444 }
445
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200446 /* this part should be common with other protocols */
447 si_reset(&s->si[0], t);
448 si_set_state(&s->si[0], SI_ST_EST);
449
Willy Tarreaub4f98092014-05-08 21:06:11 +0200450 /* attach the incoming connection to the stream interface now.
451 * We must do that *before* clearing ->target because we need
452 * to keep a pointer to the connection in case we have to call
453 * kill_mini_session().
454 */
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200455 si_attach_conn(&s->si[0], conn);
456
457 if (likely(s->fe->options2 & PR_O2_INDEPSTR))
458 s->si[0].flags |= SI_FL_INDEP_STR;
459
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200460 /* pre-initialize the other side's stream interface to an INIT state. The
461 * callbacks will be initialized before attempting to connect.
462 */
Willy Tarreau3ed35ef2013-10-24 11:51:38 +0200463 si_reset(&s->si[1], t);
Willy Tarreau2a6e8802013-10-24 15:50:53 +0200464 si_detach(&s->si[1]);
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200465
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200466 if (likely(s->fe->options2 & PR_O2_INDEPSTR))
467 s->si[1].flags |= SI_FL_INDEP_STR;
468
Willy Tarreau9bd0d742011-07-20 00:17:39 +0200469 session_init_srv_conn(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100470 s->target = NULL;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200471 s->pend_pos = NULL;
472
473 /* init store persistence */
474 s->store_count = 0;
475
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200476 if (unlikely((s->req = pool_alloc2(pool2_channel)) == NULL))
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200477 goto out_free_task; /* no memory */
478
Willy Tarreau9b28e032012-10-12 23:49:43 +0200479 if (unlikely((s->req->buf = pool_alloc2(pool2_buffer)) == NULL))
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200480 goto out_free_req; /* no memory */
481
Willy Tarreau9b28e032012-10-12 23:49:43 +0200482 if (unlikely((s->rep = pool_alloc2(pool2_channel)) == NULL))
483 goto out_free_req_buf; /* no memory */
484
485 if (unlikely((s->rep->buf = pool_alloc2(pool2_buffer)) == NULL))
486 goto out_free_rep; /* no memory */
487
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200488 /* initialize the request buffer */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200489 s->req->buf->size = global.tune.bufsize;
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200490 channel_init(s->req);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200491 s->req->prod = &s->si[0];
492 s->req->cons = &s->si[1];
493 s->si[0].ib = s->si[1].ob = s->req;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200494 s->req->flags |= CF_READ_ATTACHED; /* the producer is already connected */
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200495
496 /* activate default analysers enabled for this listener */
497 s->req->analysers = l->analysers;
498
499 s->req->wto = TICK_ETERNITY;
500 s->req->rto = TICK_ETERNITY;
501 s->req->rex = TICK_ETERNITY;
502 s->req->wex = TICK_ETERNITY;
503 s->req->analyse_exp = TICK_ETERNITY;
504
505 /* initialize response buffer */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200506 s->rep->buf->size = global.tune.bufsize;
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200507 channel_init(s->rep);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200508 s->rep->prod = &s->si[1];
509 s->rep->cons = &s->si[0];
510 s->si[0].ob = s->si[1].ib = s->rep;
511 s->rep->analysers = 0;
512
Willy Tarreau96e31212011-05-30 18:10:30 +0200513 if (s->fe->options2 & PR_O2_NODELAY) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200514 s->req->flags |= CF_NEVER_WAIT;
515 s->rep->flags |= CF_NEVER_WAIT;
Willy Tarreau96e31212011-05-30 18:10:30 +0200516 }
517
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200518 s->rep->rto = TICK_ETERNITY;
519 s->rep->wto = TICK_ETERNITY;
520 s->rep->rex = TICK_ETERNITY;
521 s->rep->wex = TICK_ETERNITY;
522 s->rep->analyse_exp = TICK_ETERNITY;
523
Willy Tarreau62f791e2012-03-09 11:32:30 +0100524 txn = &s->txn;
525 /* Those variables will be checked and freed if non-NULL in
526 * session.c:session_free(). It is important that they are
527 * properly initialized.
528 */
529 txn->sessid = NULL;
530 txn->srv_cookie = NULL;
531 txn->cli_cookie = NULL;
532 txn->uri = NULL;
533 txn->req.cap = NULL;
534 txn->rsp.cap = NULL;
535 txn->hdr_idx.v = NULL;
536 txn->hdr_idx.size = txn->hdr_idx.used = 0;
Willy Tarreau068621e2013-12-23 15:11:25 +0100537 txn->flags = 0;
Willy Tarreau62f791e2012-03-09 11:32:30 +0100538 txn->req.flags = 0;
539 txn->rsp.flags = 0;
540 /* the HTTP messages need to know what buffer they're associated with */
Willy Tarreau394db372012-10-12 22:40:39 +0200541 txn->req.chn = s->req;
542 txn->rsp.chn = s->rep;
Willy Tarreau62f791e2012-03-09 11:32:30 +0100543
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200544 /* finish initialization of the accepted file descriptor */
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200545 conn_data_want_recv(conn);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200546
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100547 if (p->accept && (ret = p->accept(s)) <= 0) {
548 /* Either we had an unrecoverable error (<0) or work is
549 * finished (=0, eg: monitoring), in both situations,
550 * we can release everything and close.
551 */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200552 goto out_free_rep_buf;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200553 }
554
Willy Tarreau93dbc2b2012-10-12 18:01:49 +0200555 /* if logs require transport layer information, note it on the connection */
556 if (s->logs.logwait & LW_XPRT)
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200557 conn->flags |= CO_FL_XPRT_TRACKED;
Willy Tarreau93dbc2b2012-10-12 18:01:49 +0200558
Willy Tarreau2542b532012-08-31 16:01:23 +0200559 /* we want the connection handler to notify the stream interface about updates. */
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200560 conn->flags |= CO_FL_WAKE_DATA;
Willy Tarreau2542b532012-08-31 16:01:23 +0200561
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200562 /* it is important not to call the wakeup function directly but to
563 * pass through task_wakeup(), because this one knows how to apply
564 * priorities to tasks.
565 */
566 task_wakeup(t, TASK_WOKEN_INIT);
567 return 1;
568
569 /* Error unrolling */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200570 out_free_rep_buf:
571 pool_free2(pool2_buffer, s->rep->buf);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200572 out_free_rep:
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200573 pool_free2(pool2_channel, s->rep);
Willy Tarreau9b28e032012-10-12 23:49:43 +0200574 out_free_req_buf:
575 pool_free2(pool2_buffer, s->req->buf);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200576 out_free_req:
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200577 pool_free2(pool2_channel, s->req);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200578 out_free_task:
Willy Tarreaub4f98092014-05-08 21:06:11 +0200579 /* and restore the connection pointer in case we destroyed it,
580 * because kill_mini_session() will need it.
581 */
Willy Tarreau8a0b93b2014-11-25 17:10:33 +0100582 LIST_DEL(&s->list);
Willy Tarreaub4f98092014-05-08 21:06:11 +0200583 s->target = &conn->obj_type;
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100584 return ret;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200585}
586
Willy Tarreaubaaee002006-06-26 02:48:02 +0200587/*
588 * frees the context associated to a session. It must have been removed first.
589 */
Simon Hormandec5be42011-06-08 09:19:07 +0900590static void session_free(struct session *s)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200591{
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100592 struct http_txn *txn = &s->txn;
Willy Tarreau632f5a72007-07-11 10:42:35 +0200593 struct proxy *fe = s->fe;
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100594 struct bref *bref, *back;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200595 struct connection *cli_conn = objt_conn(s->si[0].end);
Willy Tarreaua4cda672010-06-06 18:28:49 +0200596 int i;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100597
Willy Tarreaubaaee002006-06-26 02:48:02 +0200598 if (s->pend_pos)
599 pendconn_free(s->pend_pos);
Willy Tarreau922a8062008-12-04 09:33:58 +0100600
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100601 if (objt_server(s->target)) { /* there may be requests left pending in queue */
Willy Tarreau1e62de62008-11-11 20:20:02 +0100602 if (s->flags & SN_CURR_SESS) {
603 s->flags &= ~SN_CURR_SESS;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100604 objt_server(s->target)->cur_sess--;
Willy Tarreau1e62de62008-11-11 20:20:02 +0100605 }
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100606 if (may_dequeue_tasks(objt_server(s->target), s->be))
607 process_srv_queue(objt_server(s->target));
Willy Tarreau1e62de62008-11-11 20:20:02 +0100608 }
Willy Tarreau922a8062008-12-04 09:33:58 +0100609
Willy Tarreau7c669d72008-06-20 15:04:11 +0200610 if (unlikely(s->srv_conn)) {
611 /* the session still has a reserved slot on a server, but
612 * it should normally be only the same as the one above,
613 * so this should not happen in fact.
614 */
615 sess_change_server(s, NULL);
616 }
617
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100618 if (s->req->pipe)
619 put_pipe(s->req->pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100620
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100621 if (s->rep->pipe)
622 put_pipe(s->rep->pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100623
Willy Tarreau9b28e032012-10-12 23:49:43 +0200624 pool_free2(pool2_buffer, s->req->buf);
625 pool_free2(pool2_buffer, s->rep->buf);
626
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200627 pool_free2(pool2_channel, s->req);
628 pool_free2(pool2_channel, s->rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200629
Willy Tarreau46023632010-01-07 22:51:47 +0100630 http_end_txn(s);
631
Willy Tarreau1e954912012-10-12 17:50:05 +0200632 /* ensure the client-side transport layer is destroyed */
Willy Tarreauf79c8172013-10-21 16:30:56 +0200633 if (cli_conn)
634 conn_force_close(cli_conn);
Willy Tarreau1e954912012-10-12 17:50:05 +0200635
Willy Tarreaua4cda672010-06-06 18:28:49 +0200636 for (i = 0; i < s->store_count; i++) {
637 if (!s->store[i].ts)
638 continue;
639 stksess_free(s->store[i].table, s->store[i].ts);
640 s->store[i].ts = NULL;
641 }
642
Willy Tarreau34eb6712011-10-24 18:15:04 +0200643 pool_free2(pool2_hdr_idx, txn->hdr_idx.v);
Willy Tarreau92fb9832007-10-16 17:34:28 +0200644 if (fe) {
Willy Tarreau46023632010-01-07 22:51:47 +0100645 pool_free2(fe->rsp_cap_pool, txn->rsp.cap);
646 pool_free2(fe->req_cap_pool, txn->req.cap);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200647 }
Willy Tarreau0937bc42009-12-22 15:03:09 +0100648
Willy Tarreau7af7d592013-07-01 18:07:03 +0200649 session_store_counters(s);
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +0200650
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100651 list_for_each_entry_safe(bref, back, &s->back_refs, users) {
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100652 /* we have to unlink all watchers. We must not relink them if
653 * this session was the last one in the list.
654 */
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100655 LIST_DEL(&bref->users);
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100656 LIST_INIT(&bref->users);
657 if (s->list.n != &sessions)
658 LIST_ADDQ(&LIST_ELEM(s->list.n, struct session *, list)->back_refs, &bref->users);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100659 bref->ref = s->list.n;
660 }
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100661 LIST_DEL(&s->list);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200662 si_release_endpoint(&s->si[1]);
663 si_release_endpoint(&s->si[0]);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200664 pool_free2(pool2_session, s);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200665
666 /* We may want to free the maximum amount of pools if the proxy is stopping */
Willy Tarreau92fb9832007-10-16 17:34:28 +0200667 if (fe && unlikely(fe->state == PR_STSTOPPED)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200668 pool_flush2(pool2_buffer);
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200669 pool_flush2(pool2_channel);
Willy Tarreau34eb6712011-10-24 18:15:04 +0200670 pool_flush2(pool2_hdr_idx);
Willy Tarreau48d63db2008-08-03 17:41:33 +0200671 pool_flush2(pool2_requri);
672 pool_flush2(pool2_capture);
673 pool_flush2(pool2_session);
674 pool_flush2(fe->req_cap_pool);
675 pool_flush2(fe->rsp_cap_pool);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200676 }
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200677}
678
679
680/* perform minimal intializations, report 0 in case of error, 1 if OK. */
681int init_session()
682{
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100683 LIST_INIT(&sessions);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200684 pool2_session = create_pool("session", sizeof(struct session), MEM_F_SHARED);
685 return pool2_session != NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200686}
687
Willy Tarreau30e71012007-11-26 20:15:35 +0100688void session_process_counters(struct session *s)
689{
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100690 unsigned long long bytes;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100691 void *ptr;
692 int i;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100693
Willy Tarreau30e71012007-11-26 20:15:35 +0100694 if (s->req) {
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100695 bytes = s->req->total - s->logs.bytes_in;
Willy Tarreau30e71012007-11-26 20:15:35 +0100696 s->logs.bytes_in = s->req->total;
697 if (bytes) {
Willy Tarreau20d46a52012-12-09 15:55:40 +0100698 s->fe->fe_counters.bytes_in += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100699
Willy Tarreau20d46a52012-12-09 15:55:40 +0100700 s->be->be_counters.bytes_in += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100701
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100702 if (objt_server(s->target))
Willy Tarreau20d46a52012-12-09 15:55:40 +0100703 objt_server(s->target)->counters.bytes_in += bytes;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200704
Thierry FOURNIERa47a94f2014-03-20 15:42:53 +0100705 if (s->listener && s->listener->counters)
Willy Tarreau20d46a52012-12-09 15:55:40 +0100706 s->listener->counters->bytes_in += bytes;
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200707
Willy Tarreaub4c84932013-07-23 19:15:30 +0200708 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100709 if (!stkctr_entry(&s->stkctr[i]))
Willy Tarreau20d46a52012-12-09 15:55:40 +0100710 continue;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200711
Willy Tarreau20d46a52012-12-09 15:55:40 +0100712 ptr = stktable_data_ptr(s->stkctr[i].table,
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100713 stkctr_entry(&s->stkctr[i]),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100714 STKTABLE_DT_BYTES_IN_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200715 if (ptr)
716 stktable_data_cast(ptr, bytes_in_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200717
Willy Tarreau20d46a52012-12-09 15:55:40 +0100718 ptr = stktable_data_ptr(s->stkctr[i].table,
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100719 stkctr_entry(&s->stkctr[i]),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100720 STKTABLE_DT_BYTES_IN_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200721 if (ptr)
722 update_freq_ctr_period(&stktable_data_cast(ptr, bytes_in_rate),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100723 s->stkctr[i].table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200724 }
Willy Tarreau30e71012007-11-26 20:15:35 +0100725 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100726 }
727
Willy Tarreau30e71012007-11-26 20:15:35 +0100728 if (s->rep) {
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100729 bytes = s->rep->total - s->logs.bytes_out;
Willy Tarreau30e71012007-11-26 20:15:35 +0100730 s->logs.bytes_out = s->rep->total;
731 if (bytes) {
Willy Tarreau20d46a52012-12-09 15:55:40 +0100732 s->fe->fe_counters.bytes_out += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100733
Willy Tarreau20d46a52012-12-09 15:55:40 +0100734 s->be->be_counters.bytes_out += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100735
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100736 if (objt_server(s->target))
Willy Tarreau20d46a52012-12-09 15:55:40 +0100737 objt_server(s->target)->counters.bytes_out += bytes;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200738
Thierry FOURNIERa47a94f2014-03-20 15:42:53 +0100739 if (s->listener && s->listener->counters)
Willy Tarreau20d46a52012-12-09 15:55:40 +0100740 s->listener->counters->bytes_out += bytes;
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200741
Willy Tarreaub4c84932013-07-23 19:15:30 +0200742 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100743 if (!stkctr_entry(&s->stkctr[i]))
Willy Tarreau20d46a52012-12-09 15:55:40 +0100744 continue;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200745
Willy Tarreau20d46a52012-12-09 15:55:40 +0100746 ptr = stktable_data_ptr(s->stkctr[i].table,
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100747 stkctr_entry(&s->stkctr[i]),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100748 STKTABLE_DT_BYTES_OUT_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200749 if (ptr)
750 stktable_data_cast(ptr, bytes_out_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200751
Willy Tarreau20d46a52012-12-09 15:55:40 +0100752 ptr = stktable_data_ptr(s->stkctr[i].table,
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100753 stkctr_entry(&s->stkctr[i]),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100754 STKTABLE_DT_BYTES_OUT_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200755 if (ptr)
756 update_freq_ctr_period(&stktable_data_cast(ptr, bytes_out_rate),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100757 s->stkctr[i].table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200758 }
Willy Tarreau30e71012007-11-26 20:15:35 +0100759 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100760 }
761}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200762
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100763/* This function is called with (si->state == SI_ST_CON) meaning that a
764 * connection was attempted and that the file descriptor is already allocated.
765 * We must check for establishment, error and abort. Possible output states
766 * are SI_ST_EST (established), SI_ST_CER (error), SI_ST_DIS (abort), and
767 * SI_ST_CON (no change). The function returns 0 if it switches to SI_ST_CER,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200768 * otherwise 1. This only works with connection-based sessions.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100769 */
Simon Hormandec5be42011-06-08 09:19:07 +0900770static int sess_update_st_con_tcp(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100771{
Willy Tarreau7421efb2012-07-02 15:11:27 +0200772 struct channel *req = si->ob;
773 struct channel *rep = si->ib;
Willy Tarreau7f3f29e2016-11-17 12:05:13 +0100774 struct connection *srv_conn = __objt_conn(si->end);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100775
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100776 /* If we got an error, or if nothing happened and the connection timed
777 * out, we must give up. The CER state handler will take care of retry
778 * attempts and error reports.
779 */
780 if (unlikely(si->flags & (SI_FL_EXP|SI_FL_ERR))) {
Willy Tarreaue3224e82012-10-29 22:41:31 +0100781 if (unlikely(si->ob->flags & CF_WRITE_PARTIAL)) {
782 /* Some data were sent past the connection establishment,
783 * so we need to pretend we're established to log correctly
784 * and let later states handle the failure.
785 */
Willy Tarreaue3224e82012-10-29 22:41:31 +0100786 si->state = SI_ST_EST;
787 si->err_type = SI_ET_DATA_ERR;
788 si->ib->flags |= CF_READ_ERROR | CF_WRITE_ERROR;
Willy Tarreaue3224e82012-10-29 22:41:31 +0100789 return 1;
790 }
Willy Tarreau127334e2009-03-28 10:47:26 +0100791 si->exp = TICK_ETERNITY;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100792 si->state = SI_ST_CER;
Willy Tarreau0ede5a32012-12-08 08:44:02 +0100793
Willy Tarreau7f3f29e2016-11-17 12:05:13 +0100794 conn_force_close(srv_conn);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100795
796 if (si->err_type)
797 return 0;
798
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100799 if (si->flags & SI_FL_ERR)
800 si->err_type = SI_ET_CONN_ERR;
801 else
802 si->err_type = SI_ET_CONN_TO;
803 return 0;
804 }
805
806 /* OK, maybe we want to abort */
Willy Tarreaua7a7ebc2012-12-30 00:50:35 +0100807 if (!(req->flags & CF_WRITE_PARTIAL) &&
808 unlikely((rep->flags & CF_SHUTW) ||
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200809 ((req->flags & CF_SHUTW_NOW) && /* FIXME: this should not prevent a connection from establishing */
810 ((!(req->flags & CF_WRITE_ACTIVITY) && channel_is_empty(req)) ||
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100811 s->be->options & PR_O_ABRT_CLOSE)))) {
812 /* give up */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200813 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100814 si->err_type |= SI_ET_CONN_ABRT;
Willy Tarreau84455332009-03-15 22:34:05 +0100815 if (s->srv_error)
816 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100817 return 1;
818 }
819
820 /* we need to wait a bit more if there was no activity either */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200821 if (!(req->flags & CF_WRITE_ACTIVITY))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100822 return 1;
823
824 /* OK, this means that a connection succeeded. The caller will be
825 * responsible for handling the transition from CON to EST.
826 */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100827 si->state = SI_ST_EST;
828 si->err_type = SI_ET_NONE;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100829 return 1;
830}
831
832/* This function is called with (si->state == SI_ST_CER) meaning that a
833 * previous connection attempt has failed and that the file descriptor
834 * has already been released. Possible causes include asynchronous error
835 * notification and time out. Possible output states are SI_ST_CLO when
836 * retries are exhausted, SI_ST_TAR when a delay is wanted before a new
837 * connection attempt, SI_ST_ASS when it's wise to retry on the same server,
838 * and SI_ST_REQ when an immediate redispatch is wanted. The buffers are
839 * marked as in error state. It returns 0.
840 */
Simon Hormandec5be42011-06-08 09:19:07 +0900841static int sess_update_st_cer(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100842{
843 /* we probably have to release last session from the server */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100844 if (objt_server(s->target)) {
845 health_adjust(objt_server(s->target), HANA_STATUS_L4_ERR);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100846
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100847 if (s->flags & SN_CURR_SESS) {
848 s->flags &= ~SN_CURR_SESS;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100849 objt_server(s->target)->cur_sess--;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100850 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100851 }
852
853 /* ensure that we have enough retries left */
Willy Tarreauee28de02010-06-01 09:51:00 +0200854 si->conn_retries--;
855 if (si->conn_retries < 0) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100856 if (!si->err_type) {
857 si->err_type = SI_ET_CONN_ERR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100858 }
859
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100860 if (objt_server(s->target))
861 objt_server(s->target)->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100862 s->be->be_counters.failed_conns++;
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100863 sess_change_server(s, NULL);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100864 if (may_dequeue_tasks(objt_server(s->target), s->be))
865 process_srv_queue(objt_server(s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100866
867 /* shutw is enough so stop a connecting socket */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200868 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200869 si->ob->flags |= CF_WRITE_ERROR;
870 si->ib->flags |= CF_READ_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100871
872 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100873 if (s->srv_error)
874 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100875 return 0;
876 }
877
878 /* If the "redispatch" option is set on the backend, we are allowed to
879 * retry on another server for the last retry. In order to achieve this,
880 * we must mark the session unassigned, and eventually clear the DIRECT
881 * bit to ignore any persistence cookie. We won't count a retry nor a
882 * redispatch yet, because this will depend on what server is selected.
Willy Tarreau33a14e52014-06-13 17:49:40 +0200883 * If the connection is not persistent, the balancing algorithm is not
884 * determinist (round robin) and there is more than one active server,
885 * we accept to perform an immediate redispatch without waiting since
886 * we don't care about this particular server.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100887 */
Willy Tarreau33a14e52014-06-13 17:49:40 +0200888 if (objt_server(s->target) &&
889 (si->conn_retries == 0 ||
Willy Tarreau8db2a602016-01-13 07:58:44 +0100890 (__objt_server(s->target)->state < SRV_ST_RUNNING) ||
Willy Tarreau33a14e52014-06-13 17:49:40 +0200891 (!(s->flags & SN_DIRECT) && s->be->srv_act > 1 &&
892 ((s->be->lbprm.algo & BE_LB_KIND) == BE_LB_KIND_RR))) &&
Willy Tarreau4de91492010-01-22 19:10:05 +0100893 s->be->options & PR_O_REDISP && !(s->flags & SN_FORCE_PRST)) {
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100894 sess_change_server(s, NULL);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100895 if (may_dequeue_tasks(objt_server(s->target), s->be))
896 process_srv_queue(objt_server(s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100897
898 s->flags &= ~(SN_DIRECT | SN_ASSIGNED | SN_ADDR_SET);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100899 si->state = SI_ST_REQ;
900 } else {
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100901 if (objt_server(s->target))
902 objt_server(s->target)->counters.retries++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100903 s->be->be_counters.retries++;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100904 si->state = SI_ST_ASS;
905 }
906
907 if (si->flags & SI_FL_ERR) {
908 /* The error was an asynchronous connection error, and we will
909 * likely have to retry connecting to the same server, most
910 * likely leading to the same result. To avoid this, we wait
Willy Tarreaub0290662014-06-13 17:04:44 +0200911 * MIN(one second, connect timeout) before retrying.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100912 */
913
Willy Tarreaub0290662014-06-13 17:04:44 +0200914 int delay = 1000;
915
916 if (s->be->timeout.connect && s->be->timeout.connect < delay)
917 delay = s->be->timeout.connect;
918
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100919 if (!si->err_type)
920 si->err_type = SI_ET_CONN_ERR;
921
Willy Tarreaudb6d0122014-06-13 17:40:15 +0200922 /* only wait when we're retrying on the same server */
923 if (si->state == SI_ST_ASS ||
924 (s->be->lbprm.algo & BE_LB_KIND) != BE_LB_KIND_RR ||
925 (s->be->srv_act <= 1)) {
926 si->state = SI_ST_TAR;
927 si->exp = tick_add(now_ms, MS_TO_TICKS(delay));
928 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100929 return 0;
930 }
931 return 0;
932}
933
934/*
935 * This function handles the transition between the SI_ST_CON state and the
Willy Tarreau85e7d002010-05-31 11:57:51 +0200936 * SI_ST_EST state. It must only be called after switching from SI_ST_CON (or
Willy Tarreau26d8c592012-05-07 18:12:14 +0200937 * SI_ST_INI) to SI_ST_EST, but only when a ->proto is defined.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100938 */
Simon Hormandec5be42011-06-08 09:19:07 +0900939static void sess_establish(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100940{
Willy Tarreau7421efb2012-07-02 15:11:27 +0200941 struct channel *req = si->ob;
942 struct channel *rep = si->ib;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100943
Willy Tarreau0e37f1c2013-12-31 23:06:46 +0100944 /* First, centralize the timers information */
945 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
946 si->exp = TICK_ETERNITY;
947
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100948 if (objt_server(s->target))
949 health_adjust(objt_server(s->target), HANA_STATUS_L4_OK);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100950
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100951 if (s->be->mode == PR_MODE_TCP) { /* let's allow immediate data connection in this case */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100952 /* if the user wants to log as soon as possible, without counting
953 * bytes from the server, then this is the right moment. */
Willy Tarreaud79a3b22012-12-28 09:40:16 +0100954 if (!LIST_ISEMPTY(&s->fe->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100955 s->logs.t_close = s->logs.t_connect; /* to get a valid end date */
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100956 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100957 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100958 }
959 else {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100960 s->txn.rsp.msg_state = HTTP_MSG_RPBEFORE;
Willy Tarreaud81ca042013-12-31 22:33:13 +0100961 rep->flags |= CF_READ_DONTWAIT; /* a single read is enough to get response headers */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100962 }
963
Willy Tarreau4e5b8282009-08-16 22:57:50 +0200964 rep->analysers |= s->fe->fe_rsp_ana | s->be->be_rsp_ana;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200965 rep->flags |= CF_READ_ATTACHED; /* producer is now attached */
Willy Tarreau644c1012014-04-30 18:11:11 +0200966 if (req->flags & CF_WAKE_CONNECT) {
967 req->flags |= CF_WAKE_ONCE;
968 req->flags &= ~CF_WAKE_CONNECT;
969 }
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200970 if (objt_conn(si->end)) {
Willy Tarreaud04e8582010-05-31 12:31:35 +0200971 /* real connections have timeouts */
972 req->wto = s->be->timeout.server;
973 rep->rto = s->be->timeout.server;
974 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100975 req->wex = TICK_ETERNITY;
976}
977
978/* Update stream interface status for input states SI_ST_ASS, SI_ST_QUE, SI_ST_TAR.
979 * Other input states are simply ignored.
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +0100980 * Possible output states are SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ, SI_ST_CON
981 * and SI_ST_EST. Flags must have previously been updated for timeouts and other
982 * conditions.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100983 */
Simon Hormandec5be42011-06-08 09:19:07 +0900984static void sess_update_stream_int(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100985{
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100986 struct server *srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +0100987
Willy Tarreau02d6cfc2012-03-01 18:19:58 +0100988 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 +0100989 now_ms, __FUNCTION__,
990 s,
991 s->req, s->rep,
992 s->req->rex, s->rep->wex,
993 s->req->flags, s->rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200994 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 +0100995
996 if (si->state == SI_ST_ASS) {
997 /* Server assigned to connection request, we have to try to connect now */
998 int conn_err;
999
1000 conn_err = connect_server(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001001 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01001002
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001003 if (conn_err == SN_ERR_NONE) {
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +01001004 /* state = SI_ST_CON or SI_ST_EST now */
Willy Tarreau827aee92011-03-10 16:55:02 +01001005 if (srv)
1006 srv_inc_sess_ctr(srv);
Bhaskar Maddalaa20cb852014-02-03 16:26:46 -05001007 if (srv)
1008 srv_set_sess_last(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001009 return;
1010 }
1011
1012 /* We have received a synchronous error. We might have to
1013 * abort, retry immediately or redispatch.
1014 */
1015 if (conn_err == SN_ERR_INTERNAL) {
1016 if (!si->err_type) {
1017 si->err_type = SI_ET_CONN_OTHER;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001018 }
1019
Willy Tarreau827aee92011-03-10 16:55:02 +01001020 if (srv)
1021 srv_inc_sess_ctr(srv);
1022 if (srv)
Bhaskar Maddalaa20cb852014-02-03 16:26:46 -05001023 srv_set_sess_last(srv);
1024 if (srv)
Willy Tarreau827aee92011-03-10 16:55:02 +01001025 srv->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001026 s->be->be_counters.failed_conns++;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001027
1028 /* release other sessions waiting for this server */
Willy Tarreaub89cfca2010-12-29 14:32:28 +01001029 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001030 if (may_dequeue_tasks(srv, s->be))
1031 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001032
1033 /* Failed and not retryable. */
Willy Tarreau73b013b2012-05-21 16:31:45 +02001034 si_shutr(si);
1035 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001036 si->ob->flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001037
1038 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1039
1040 /* no session was ever accounted for this server */
1041 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001042 if (s->srv_error)
1043 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001044 return;
1045 }
1046
1047 /* We are facing a retryable error, but we don't want to run a
1048 * turn-around now, as the problem is likely a source port
1049 * allocation problem, so we want to retry now.
1050 */
1051 si->state = SI_ST_CER;
1052 si->flags &= ~SI_FL_ERR;
1053 sess_update_st_cer(s, si);
1054 /* now si->state is one of SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ */
1055 return;
1056 }
1057 else if (si->state == SI_ST_QUE) {
1058 /* connection request was queued, check for any update */
1059 if (!s->pend_pos) {
1060 /* The connection is not in the queue anymore. Either
1061 * we have a server connection slot available and we
1062 * go directly to the assigned state, or we need to
1063 * load-balance first and go to the INI state.
1064 */
1065 si->exp = TICK_ETERNITY;
1066 if (unlikely(!(s->flags & SN_ASSIGNED)))
1067 si->state = SI_ST_REQ;
1068 else {
1069 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1070 si->state = SI_ST_ASS;
1071 }
1072 return;
1073 }
1074
1075 /* Connection request still in queue... */
1076 if (si->flags & SI_FL_EXP) {
1077 /* ... and timeout expired */
1078 si->exp = TICK_ETERNITY;
1079 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau827aee92011-03-10 16:55:02 +01001080 if (srv)
1081 srv->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001082 s->be->be_counters.failed_conns++;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001083 si_shutr(si);
1084 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001085 si->ob->flags |= CF_WRITE_TIMEOUT;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001086 if (!si->err_type)
1087 si->err_type = SI_ET_QUEUE_TO;
1088 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001089 if (s->srv_error)
1090 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001091 return;
1092 }
1093
1094 /* Connection remains in queue, check if we have to abort it */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001095 if ((si->ob->flags & (CF_READ_ERROR)) ||
1096 ((si->ob->flags & CF_SHUTW_NOW) && /* empty and client aborted */
Willy Tarreau8e21bb92012-08-24 22:40:29 +02001097 (channel_is_empty(si->ob) || s->be->options & PR_O_ABRT_CLOSE))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001098 /* give up */
1099 si->exp = TICK_ETERNITY;
1100 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau73b013b2012-05-21 16:31:45 +02001101 si_shutr(si);
1102 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001103 si->err_type |= SI_ET_QUEUE_ABRT;
1104 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001105 if (s->srv_error)
1106 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001107 return;
1108 }
1109
1110 /* Nothing changed */
1111 return;
1112 }
1113 else if (si->state == SI_ST_TAR) {
1114 /* Connection request might be aborted */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001115 if ((si->ob->flags & (CF_READ_ERROR)) ||
1116 ((si->ob->flags & CF_SHUTW_NOW) && /* empty and client aborted */
Willy Tarreau8e21bb92012-08-24 22:40:29 +02001117 (channel_is_empty(si->ob) || s->be->options & PR_O_ABRT_CLOSE))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001118 /* give up */
1119 si->exp = TICK_ETERNITY;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001120 si_shutr(si);
1121 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001122 si->err_type |= SI_ET_CONN_ABRT;
1123 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001124 if (s->srv_error)
1125 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001126 return;
1127 }
1128
1129 if (!(si->flags & SI_FL_EXP))
1130 return; /* still in turn-around */
1131
1132 si->exp = TICK_ETERNITY;
1133
1134 /* we keep trying on the same server as long as the session is
1135 * marked "assigned".
1136 * FIXME: Should we force a redispatch attempt when the server is down ?
1137 */
1138 if (s->flags & SN_ASSIGNED)
1139 si->state = SI_ST_ASS;
1140 else
1141 si->state = SI_ST_REQ;
1142 return;
1143 }
1144}
1145
Simon Hormandec5be42011-06-08 09:19:07 +09001146/* Set correct session termination flags in case no analyser has done it. It
1147 * also counts a failed request if the server state has not reached the request
1148 * stage.
1149 */
1150static void sess_set_term_flags(struct session *s)
1151{
1152 if (!(s->flags & SN_FINST_MASK)) {
1153 if (s->si[1].state < SI_ST_REQ) {
1154
1155 s->fe->fe_counters.failed_req++;
1156 if (s->listener->counters)
1157 s->listener->counters->failed_req++;
1158
1159 s->flags |= SN_FINST_R;
1160 }
1161 else if (s->si[1].state == SI_ST_QUE)
1162 s->flags |= SN_FINST_Q;
1163 else if (s->si[1].state < SI_ST_EST)
1164 s->flags |= SN_FINST_C;
1165 else if (s->si[1].state == SI_ST_EST || s->si[1].prev_state == SI_ST_EST)
1166 s->flags |= SN_FINST_D;
1167 else
1168 s->flags |= SN_FINST_L;
1169 }
1170}
1171
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001172/* This function initiates a server connection request on a stream interface
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001173 * already in SI_ST_REQ state. Upon success, the state goes to SI_ST_ASS for
1174 * a real connection to a server, indicating that a server has been assigned,
1175 * or SI_ST_EST for a successful connection to an applet. It may also return
1176 * SI_ST_QUE, or SI_ST_CLO upon error.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001177 */
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001178static void sess_prepare_conn_req(struct session *s, struct stream_interface *si)
1179{
1180 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 +01001181 now_ms, __FUNCTION__,
1182 s,
1183 s->req, s->rep,
1184 s->req->rex, s->rep->wex,
1185 s->req->flags, s->rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001186 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 +01001187
1188 if (si->state != SI_ST_REQ)
1189 return;
1190
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001191 if (unlikely(obj_type(s->target) == OBJ_TYPE_APPLET)) {
1192 /* the applet directly goes to the EST state */
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001193 struct appctx *appctx = objt_appctx(si->end);
1194
1195 if (!appctx || appctx->applet != __objt_applet(s->target))
1196 appctx = stream_int_register_handler(si, objt_applet(s->target));
1197
1198 if (!appctx) {
1199 /* No more memory, let's immediately abort. Force the
1200 * error code to ignore the ERR_LOCAL which is not a
1201 * real error.
1202 */
Willy Tarreau6bbb2f62013-12-09 17:14:23 +01001203 s->flags &= ~(SN_ERR_MASK | SN_FINST_MASK);
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001204
1205 si_shutr(si);
1206 si_shutw(si);
1207 si->ob->flags |= CF_WRITE_ERROR;
Willy Tarreau6bbb2f62013-12-09 17:14:23 +01001208 si->err_type = SI_ET_CONN_RES;
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001209 si->state = SI_ST_CLO;
1210 if (s->srv_error)
1211 s->srv_error(s, si);
1212 return;
1213 }
1214
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001215 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001216 si->state = SI_ST_EST;
1217 si->err_type = SI_ET_NONE;
Willy Tarreaub9a551e2014-04-23 00:35:17 +02001218 be_set_sess_last(s->be);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01001219 /* let sess_establish() finish the job */
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001220 return;
1221 }
1222
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001223 /* Try to assign a server */
1224 if (srv_redispatch_connect(s) != 0) {
1225 /* We did not get a server. Either we queued the
1226 * connection request, or we encountered an error.
1227 */
1228 if (si->state == SI_ST_QUE)
1229 return;
1230
1231 /* we did not get any server, let's check the cause */
Willy Tarreau73b013b2012-05-21 16:31:45 +02001232 si_shutr(si);
1233 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001234 si->ob->flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001235 if (!si->err_type)
1236 si->err_type = SI_ET_CONN_OTHER;
1237 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001238 if (s->srv_error)
1239 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001240 return;
1241 }
1242
1243 /* The server is assigned */
1244 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1245 si->state = SI_ST_ASS;
Willy Tarreaub9a551e2014-04-23 00:35:17 +02001246 be_set_sess_last(s->be);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001247}
1248
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001249/* This stream analyser checks the switching rules and changes the backend
Willy Tarreau4de91492010-01-22 19:10:05 +01001250 * if appropriate. The default_backend rule is also considered, then the
1251 * target backend's forced persistence rules are also evaluated last if any.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001252 * It returns 1 if the processing can continue on next analysers, or zero if it
1253 * either needs more data or wants to immediately abort the request.
1254 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001255static int process_switching_rules(struct session *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001256{
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001257 struct persist_rule *prst_rule;
Willy Tarreau4de91492010-01-22 19:10:05 +01001258
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001259 req->analysers &= ~an_bit;
1260 req->analyse_exp = TICK_ETERNITY;
1261
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001262 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 +02001263 now_ms, __FUNCTION__,
1264 s,
1265 req,
1266 req->rex, req->wex,
1267 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001268 req->buf->i,
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001269 req->analysers);
1270
1271 /* now check whether we have some switching rules for this request */
1272 if (!(s->flags & SN_BE_ASSIGNED)) {
1273 struct switching_rule *rule;
1274
1275 list_for_each_entry(rule, &s->fe->switching_rules, list) {
Willy Tarreauf51658d2014-04-23 01:21:56 +02001276 int ret = 1;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001277
Willy Tarreauf51658d2014-04-23 01:21:56 +02001278 if (rule->cond) {
1279 ret = acl_exec_cond(rule->cond, s->fe, s, &s->txn, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
1280 ret = acl_pass(ret);
1281 if (rule->cond->pol == ACL_COND_UNLESS)
1282 ret = !ret;
1283 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001284
1285 if (ret) {
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001286 /* If the backend name is dynamic, try to resolve the name.
1287 * If we can't resolve the name, or if any error occurs, break
1288 * the loop and fallback to the default backend.
1289 */
1290 struct proxy *backend;
1291
1292 if (rule->dynamic) {
1293 struct chunk *tmp = get_trash_chunk();
1294 if (!build_logline(s, tmp->str, tmp->size, &rule->be.expr))
1295 break;
1296 backend = findproxy(tmp->str, PR_CAP_BE);
1297 if (!backend)
1298 break;
1299 }
1300 else
1301 backend = rule->be.backend;
1302
1303 if (!session_set_backend(s, backend))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001304 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001305 break;
1306 }
1307 }
1308
1309 /* To ensure correct connection accounting on the backend, we
1310 * have to assign one if it was not set (eg: a listen). This
1311 * measure also takes care of correctly setting the default
1312 * backend if any.
1313 */
1314 if (!(s->flags & SN_BE_ASSIGNED))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001315 if (!session_set_backend(s, s->fe->defbe.be ? s->fe->defbe.be : s->be))
1316 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001317 }
1318
Willy Tarreaufb356202010-08-03 14:02:05 +02001319 /* we don't want to run the TCP or HTTP filters again if the backend has not changed */
1320 if (s->fe == s->be) {
1321 s->req->analysers &= ~AN_REQ_INSPECT_BE;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001322 s->req->analysers &= ~AN_REQ_HTTP_PROCESS_BE;
Willy Tarreaufb356202010-08-03 14:02:05 +02001323 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001324
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001325 /* 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 +01001326 * persistence rule, and report that in the session.
1327 */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001328 list_for_each_entry(prst_rule, &s->be->persist_rules, list) {
Willy Tarreau4de91492010-01-22 19:10:05 +01001329 int ret = 1;
1330
1331 if (prst_rule->cond) {
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001332 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 +01001333 ret = acl_pass(ret);
1334 if (prst_rule->cond->pol == ACL_COND_UNLESS)
1335 ret = !ret;
1336 }
1337
1338 if (ret) {
1339 /* no rule, or the rule matches */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001340 if (prst_rule->type == PERSIST_TYPE_FORCE) {
1341 s->flags |= SN_FORCE_PRST;
1342 } else {
1343 s->flags |= SN_IGNORE_PRST;
1344 }
Willy Tarreau4de91492010-01-22 19:10:05 +01001345 break;
1346 }
1347 }
1348
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001349 return 1;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001350
1351 sw_failed:
1352 /* immediately abort this request in case of allocation failure */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001353 channel_abort(s->req);
1354 channel_abort(s->rep);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001355
1356 if (!(s->flags & SN_ERR_MASK))
1357 s->flags |= SN_ERR_RESOURCE;
1358 if (!(s->flags & SN_FINST_MASK))
1359 s->flags |= SN_FINST_R;
1360
1361 s->txn.status = 500;
1362 s->req->analysers = 0;
1363 s->req->analyse_exp = TICK_ETERNITY;
1364 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001365}
1366
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001367/* This stream analyser works on a request. It applies all use-server rules on
1368 * it then returns 1. The data must already be present in the buffer otherwise
1369 * they won't match. It always returns 1.
1370 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001371static int process_server_rules(struct session *s, struct channel *req, int an_bit)
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001372{
1373 struct proxy *px = s->be;
1374 struct server_rule *rule;
1375
1376 DPRINTF(stderr,"[%u] %s: session=%p b=%p, exp(r,w)=%u,%u bf=%08x bl=%d analysers=%02x\n",
1377 now_ms, __FUNCTION__,
1378 s,
1379 req,
1380 req->rex, req->wex,
1381 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001382 req->buf->i + req->buf->o,
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001383 req->analysers);
1384
1385 if (!(s->flags & SN_ASSIGNED)) {
1386 list_for_each_entry(rule, &px->server_rules, list) {
1387 int ret;
1388
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001389 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 +02001390 ret = acl_pass(ret);
1391 if (rule->cond->pol == ACL_COND_UNLESS)
1392 ret = !ret;
1393
1394 if (ret) {
1395 struct server *srv = rule->srv.ptr;
1396
Willy Tarreau892337c2014-05-13 23:41:20 +02001397 if ((srv->state != SRV_ST_STOPPED) ||
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001398 (px->options & PR_O_PERSIST) ||
1399 (s->flags & SN_FORCE_PRST)) {
1400 s->flags |= SN_DIRECT | SN_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001401 s->target = &srv->obj_type;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001402 break;
1403 }
1404 /* if the server is not UP, let's go on with next rules
1405 * just in case another one is suited.
1406 */
1407 }
1408 }
1409 }
1410
1411 req->analysers &= ~an_bit;
1412 req->analyse_exp = TICK_ETERNITY;
1413 return 1;
1414}
1415
Emeric Brun1d33b292010-01-04 15:47:17 +01001416/* This stream analyser works on a request. It applies all sticking rules on
1417 * it then returns 1. The data must already be present in the buffer otherwise
1418 * they won't match. It always returns 1.
1419 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001420static int process_sticking_rules(struct session *s, struct channel *req, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001421{
1422 struct proxy *px = s->be;
1423 struct sticking_rule *rule;
1424
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001425 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 +01001426 now_ms, __FUNCTION__,
1427 s,
1428 req,
1429 req->rex, req->wex,
1430 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001431 req->buf->i,
Emeric Brun1d33b292010-01-04 15:47:17 +01001432 req->analysers);
1433
1434 list_for_each_entry(rule, &px->sticking_rules, list) {
1435 int ret = 1 ;
1436 int i;
1437
Willy Tarreau9667a802013-12-09 12:52:13 +01001438 /* Only the first stick store-request of each table is applied
1439 * and other ones are ignored. The purpose is to allow complex
1440 * configurations which look for multiple entries by decreasing
1441 * order of precision and to stop at the first which matches.
1442 * An example could be a store of the IP address from an HTTP
1443 * header first, then from the source if not found.
1444 */
Emeric Brun1d33b292010-01-04 15:47:17 +01001445 for (i = 0; i < s->store_count; i++) {
1446 if (rule->table.t == s->store[i].table)
1447 break;
1448 }
1449
1450 if (i != s->store_count)
1451 continue;
1452
1453 if (rule->cond) {
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001454 ret = acl_exec_cond(rule->cond, px, s, &s->txn, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001455 ret = acl_pass(ret);
1456 if (rule->cond->pol == ACL_COND_UNLESS)
1457 ret = !ret;
1458 }
1459
1460 if (ret) {
1461 struct stktable_key *key;
1462
Willy Tarreaud0083942014-06-25 16:20:53 +02001463 key = stktable_fetch_key(rule->table.t, px, s, &s->txn, SMP_OPT_DIR_REQ|SMP_OPT_FINAL, rule->expr, NULL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001464 if (!key)
1465 continue;
1466
1467 if (rule->flags & STK_IS_MATCH) {
1468 struct stksess *ts;
1469
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001470 if ((ts = stktable_lookup_key(rule->table.t, key)) != NULL) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001471 if (!(s->flags & SN_ASSIGNED)) {
1472 struct eb32_node *node;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001473 void *ptr;
Emeric Brun1d33b292010-01-04 15:47:17 +01001474
1475 /* srv found in table */
Willy Tarreau13c29de2010-06-06 16:40:39 +02001476 ptr = stktable_data_ptr(rule->table.t, ts, STKTABLE_DT_SERVER_ID);
1477 node = eb32_lookup(&px->conf.used_server_id, stktable_data_cast(ptr, server_id));
Emeric Brun1d33b292010-01-04 15:47:17 +01001478 if (node) {
1479 struct server *srv;
1480
1481 srv = container_of(node, struct server, conf.id);
Willy Tarreau892337c2014-05-13 23:41:20 +02001482 if ((srv->state != SRV_ST_STOPPED) ||
Willy Tarreau4de91492010-01-22 19:10:05 +01001483 (px->options & PR_O_PERSIST) ||
1484 (s->flags & SN_FORCE_PRST)) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001485 s->flags |= SN_DIRECT | SN_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001486 s->target = &srv->obj_type;
Emeric Brun1d33b292010-01-04 15:47:17 +01001487 }
1488 }
1489 }
Emeric Brun85e77c72010-09-23 18:16:52 +02001490 stktable_touch(rule->table.t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001491 }
1492 }
1493 if (rule->flags & STK_IS_STORE) {
1494 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
1495 struct stksess *ts;
1496
1497 ts = stksess_new(rule->table.t, key);
1498 if (ts) {
1499 s->store[s->store_count].table = rule->table.t;
1500 s->store[s->store_count++].ts = ts;
1501 }
1502 }
1503 }
1504 }
1505 }
1506
1507 req->analysers &= ~an_bit;
1508 req->analyse_exp = TICK_ETERNITY;
1509 return 1;
1510}
1511
1512/* This stream analyser works on a response. It applies all store rules on it
1513 * then returns 1. The data must already be present in the buffer otherwise
1514 * they won't match. It always returns 1.
1515 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001516static int process_store_rules(struct session *s, struct channel *rep, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001517{
1518 struct proxy *px = s->be;
1519 struct sticking_rule *rule;
1520 int i;
Willy Tarreau9667a802013-12-09 12:52:13 +01001521 int nbreq = s->store_count;
Emeric Brun1d33b292010-01-04 15:47:17 +01001522
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001523 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 +01001524 now_ms, __FUNCTION__,
1525 s,
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001526 rep,
1527 rep->rex, rep->wex,
1528 rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001529 rep->buf->i,
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001530 rep->analysers);
Emeric Brun1d33b292010-01-04 15:47:17 +01001531
1532 list_for_each_entry(rule, &px->storersp_rules, list) {
1533 int ret = 1 ;
Emeric Brun1d33b292010-01-04 15:47:17 +01001534
Willy Tarreau9667a802013-12-09 12:52:13 +01001535 /* Only the first stick store-response of each table is applied
1536 * and other ones are ignored. The purpose is to allow complex
1537 * configurations which look for multiple entries by decreasing
1538 * order of precision and to stop at the first which matches.
1539 * An example could be a store of a set-cookie value, with a
1540 * fallback to a parameter found in a 302 redirect.
1541 *
1542 * The store-response rules are not allowed to override the
1543 * store-request rules for the same table, but they may coexist.
1544 * Thus we can have up to one store-request entry and one store-
1545 * response entry for the same table at any time.
1546 */
1547 for (i = nbreq; i < s->store_count; i++) {
1548 if (rule->table.t == s->store[i].table)
1549 break;
1550 }
1551
1552 /* skip existing entries for this table */
1553 if (i < s->store_count)
1554 continue;
1555
Emeric Brun1d33b292010-01-04 15:47:17 +01001556 if (rule->cond) {
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001557 ret = acl_exec_cond(rule->cond, px, s, &s->txn, SMP_OPT_DIR_RES|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001558 ret = acl_pass(ret);
1559 if (rule->cond->pol == ACL_COND_UNLESS)
1560 ret = !ret;
1561 }
1562
1563 if (ret) {
1564 struct stktable_key *key;
1565
Willy Tarreaud0083942014-06-25 16:20:53 +02001566 key = stktable_fetch_key(rule->table.t, px, s, &s->txn, SMP_OPT_DIR_RES|SMP_OPT_FINAL, rule->expr, NULL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001567 if (!key)
1568 continue;
1569
Willy Tarreau37e340c2013-12-06 23:05:21 +01001570 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001571 struct stksess *ts;
1572
1573 ts = stksess_new(rule->table.t, key);
1574 if (ts) {
1575 s->store[s->store_count].table = rule->table.t;
Emeric Brun1d33b292010-01-04 15:47:17 +01001576 s->store[s->store_count++].ts = ts;
1577 }
1578 }
1579 }
1580 }
1581
1582 /* process store request and store response */
1583 for (i = 0; i < s->store_count; i++) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001584 struct stksess *ts;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001585 void *ptr;
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001586
Willy Tarreauc93cd162014-05-13 15:54:22 +02001587 if (objt_server(s->target) && objt_server(s->target)->flags & SRV_F_NON_STICK) {
Simon Hormanfa461682011-06-25 09:39:49 +09001588 stksess_free(s->store[i].table, s->store[i].ts);
1589 s->store[i].ts = NULL;
1590 continue;
1591 }
1592
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001593 ts = stktable_lookup(s->store[i].table, s->store[i].ts);
1594 if (ts) {
1595 /* the entry already existed, we can free ours */
Emeric Brun85e77c72010-09-23 18:16:52 +02001596 stktable_touch(s->store[i].table, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001597 stksess_free(s->store[i].table, s->store[i].ts);
Emeric Brun1d33b292010-01-04 15:47:17 +01001598 }
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001599 else
Emeric Brun85e77c72010-09-23 18:16:52 +02001600 ts = stktable_store(s->store[i].table, s->store[i].ts, 1);
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001601
1602 s->store[i].ts = NULL;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001603 ptr = stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_ID);
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001604 stktable_data_cast(ptr, server_id) = objt_server(s->target)->puid;
Emeric Brun1d33b292010-01-04 15:47:17 +01001605 }
Willy Tarreau2a164ee2010-06-18 09:57:45 +02001606 s->store_count = 0; /* everything is stored */
Emeric Brun1d33b292010-01-04 15:47:17 +01001607
1608 rep->analysers &= ~an_bit;
1609 rep->analyse_exp = TICK_ETERNITY;
1610 return 1;
1611}
1612
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001613/* This macro is very specific to the function below. See the comments in
1614 * process_session() below to understand the logic and the tests.
1615 */
1616#define UPDATE_ANALYSERS(real, list, back, flag) { \
1617 list = (((list) & ~(flag)) | ~(back)) & (real); \
1618 back = real; \
1619 if (!(list)) \
1620 break; \
1621 if (((list) ^ ((list) & ((list) - 1))) < (flag)) \
1622 continue; \
1623}
1624
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001625/* Processes the client, server, request and response jobs of a session task,
1626 * then puts it back to the wait queue in a clean state, or cleans up its
1627 * resources if it must be deleted. Returns in <next> the date the task wants
1628 * to be woken up, or TICK_ETERNITY. In order not to call all functions for
1629 * nothing too many times, the request and response buffers flags are monitored
1630 * and each function is called only if at least another function has changed at
1631 * least one flag it is interested in.
1632 */
Willy Tarreau26c25062009-03-08 09:38:41 +01001633struct task *process_session(struct task *t)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001634{
Willy Tarreau827aee92011-03-10 16:55:02 +01001635 struct server *srv;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001636 struct session *s = t->context;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001637 unsigned int rqf_last, rpf_last;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001638 unsigned int rq_prod_last, rq_cons_last;
1639 unsigned int rp_cons_last, rp_prod_last;
Willy Tarreau576507f2010-01-07 00:09:04 +01001640 unsigned int req_ana_back;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001641
1642 //DPRINTF(stderr, "%s:%d: cs=%d ss=%d(%d) rqf=0x%08x rpf=0x%08x\n", __FUNCTION__, __LINE__,
1643 // s->si[0].state, s->si[1].state, s->si[1].err_type, s->req->flags, s->rep->flags);
1644
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001645 /* this data may be no longer valid, clear it */
1646 memset(&s->txn.auth, 0, sizeof(s->txn.auth));
1647
Willy Tarreau2a4f5112014-06-23 15:22:31 +02001648 /* This flag must explicitly be set every time */
1649 s->req->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
1650 s->rep->flags &= ~(CF_READ_NOEXP|CF_WAKE_WRITE);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001651
1652 /* Keep a copy of req/rep flags so that we can detect shutdowns */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001653 rqf_last = s->req->flags & ~CF_MASK_ANALYSER;
1654 rpf_last = s->rep->flags & ~CF_MASK_ANALYSER;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001655
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001656 /* we don't want the stream interface functions to recursively wake us up */
1657 if (s->req->prod->owner == t)
1658 s->req->prod->flags |= SI_FL_DONT_WAKE;
1659 if (s->req->cons->owner == t)
1660 s->req->cons->flags |= SI_FL_DONT_WAKE;
1661
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001662 /* 1a: Check for low level timeouts if needed. We just set a flag on
1663 * stream interfaces when their timeouts have expired.
1664 */
1665 if (unlikely(t->state & TASK_WOKEN_TIMER)) {
1666 stream_int_check_timeouts(&s->si[0]);
1667 stream_int_check_timeouts(&s->si[1]);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001668
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001669 /* check channel timeouts, and close the corresponding stream interfaces
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001670 * for future reads or writes. Note: this will also concern upper layers
1671 * but we do not touch any other flag. We must be careful and correctly
1672 * detect state changes when calling them.
1673 */
1674
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001675 channel_check_timeouts(s->req);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001676
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001677 if (unlikely((s->req->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
Willy Tarreau14641402009-12-29 14:49:56 +01001678 s->req->cons->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001679 si_shutw(s->req->cons);
Willy Tarreau14641402009-12-29 14:49:56 +01001680 }
1681
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001682 if (unlikely((s->req->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001683 if (s->req->prod->flags & SI_FL_NOHALF)
1684 s->req->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001685 si_shutr(s->req->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001686 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001687
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001688 channel_check_timeouts(s->rep);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001689
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001690 if (unlikely((s->rep->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
Willy Tarreau14641402009-12-29 14:49:56 +01001691 s->rep->cons->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001692 si_shutw(s->rep->cons);
Willy Tarreau14641402009-12-29 14:49:56 +01001693 }
1694
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001695 if (unlikely((s->rep->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001696 if (s->rep->prod->flags & SI_FL_NOHALF)
1697 s->rep->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001698 si_shutr(s->rep->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001699 }
Willy Tarreau798f4322012-11-08 14:49:17 +01001700
1701 /* Once in a while we're woken up because the task expires. But
1702 * this does not necessarily mean that a timeout has been reached.
1703 * So let's not run a whole session processing if only an expiration
1704 * timeout needs to be refreshed.
1705 */
1706 if (!((s->req->flags | s->rep->flags) &
1707 (CF_SHUTR|CF_READ_ACTIVITY|CF_READ_TIMEOUT|CF_SHUTW|
1708 CF_WRITE_ACTIVITY|CF_WRITE_TIMEOUT|CF_ANA_TIMEOUT)) &&
1709 !((s->si[0].flags | s->si[1].flags) & (SI_FL_EXP|SI_FL_ERR)) &&
Willy Tarreau09ae6c92016-05-04 10:18:37 +02001710 ((t->state & TASK_WOKEN_ANY) == TASK_WOKEN_TIMER)) {
1711 s->si[0].flags &= ~SI_FL_DONT_WAKE;
1712 s->si[1].flags &= ~SI_FL_DONT_WAKE;
Willy Tarreau798f4322012-11-08 14:49:17 +01001713 goto update_exp_and_leave;
Willy Tarreau09ae6c92016-05-04 10:18:37 +02001714 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001715 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001716
1717 /* 1b: check for low-level errors reported at the stream interface.
1718 * First we check if it's a retryable error (in which case we don't
1719 * want to tell the buffer). Otherwise we report the error one level
1720 * upper by setting flags into the buffers. Note that the side towards
1721 * the client cannot have connect (hence retryable) errors. Also, the
1722 * connection setup code must be able to deal with any type of abort.
1723 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001724 srv = objt_server(s->target);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001725 if (unlikely(s->si[0].flags & SI_FL_ERR)) {
1726 if (s->si[0].state == SI_ST_EST || s->si[0].state == SI_ST_DIS) {
Willy Tarreau73b013b2012-05-21 16:31:45 +02001727 si_shutr(&s->si[0]);
1728 si_shutw(&s->si[0]);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001729 stream_int_report_error(&s->si[0]);
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001730 if (!(s->req->analysers) && !(s->rep->analysers)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001731 s->be->be_counters.cli_aborts++;
1732 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001733 if (srv)
1734 srv->counters.cli_aborts++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001735 if (!(s->flags & SN_ERR_MASK))
1736 s->flags |= SN_ERR_CLICL;
1737 if (!(s->flags & SN_FINST_MASK))
1738 s->flags |= SN_FINST_D;
1739 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001740 }
1741 }
1742
1743 if (unlikely(s->si[1].flags & SI_FL_ERR)) {
1744 if (s->si[1].state == SI_ST_EST || s->si[1].state == SI_ST_DIS) {
Willy Tarreau73b013b2012-05-21 16:31:45 +02001745 si_shutr(&s->si[1]);
1746 si_shutw(&s->si[1]);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001747 stream_int_report_error(&s->si[1]);
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001748 s->be->be_counters.failed_resp++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001749 if (srv)
1750 srv->counters.failed_resp++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001751 if (!(s->req->analysers) && !(s->rep->analysers)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001752 s->be->be_counters.srv_aborts++;
1753 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001754 if (srv)
1755 srv->counters.srv_aborts++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001756 if (!(s->flags & SN_ERR_MASK))
1757 s->flags |= SN_ERR_SRVCL;
1758 if (!(s->flags & SN_FINST_MASK))
1759 s->flags |= SN_FINST_D;
1760 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001761 }
1762 /* note: maybe we should process connection errors here ? */
1763 }
1764
1765 if (s->si[1].state == SI_ST_CON) {
1766 /* we were trying to establish a connection on the server side,
1767 * maybe it succeeded, maybe it failed, maybe we timed out, ...
1768 */
1769 if (unlikely(!sess_update_st_con_tcp(s, &s->si[1])))
1770 sess_update_st_cer(s, &s->si[1]);
1771 else if (s->si[1].state == SI_ST_EST)
1772 sess_establish(s, &s->si[1]);
1773
1774 /* state is now one of SI_ST_CON (still in progress), SI_ST_EST
1775 * (established), SI_ST_DIS (abort), SI_ST_CLO (last error),
1776 * SI_ST_ASS/SI_ST_TAR/SI_ST_REQ for retryable errors.
1777 */
1778 }
1779
Willy Tarreau815a9b22010-07-27 17:15:12 +02001780 rq_prod_last = s->si[0].state;
1781 rq_cons_last = s->si[1].state;
1782 rp_cons_last = s->si[0].state;
1783 rp_prod_last = s->si[1].state;
1784
1785 resync_stream_interface:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001786 /* Check for connection closure */
1787
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001788 DPRINTF(stderr,
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001789 "[%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 +01001790 now_ms, __FUNCTION__, __LINE__,
1791 t,
1792 s, s->flags,
1793 s->req, s->rep,
1794 s->req->rex, s->rep->wex,
1795 s->req->flags, s->rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001796 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 +01001797 s->rep->cons->err_type, s->req->cons->err_type,
Willy Tarreauee28de02010-06-01 09:51:00 +02001798 s->req->cons->conn_retries);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001799
1800 /* nothing special to be done on client side */
1801 if (unlikely(s->req->prod->state == SI_ST_DIS))
1802 s->req->prod->state = SI_ST_CLO;
1803
1804 /* When a server-side connection is released, we have to count it and
1805 * check for pending connections on this server.
1806 */
1807 if (unlikely(s->req->cons->state == SI_ST_DIS)) {
1808 s->req->cons->state = SI_ST_CLO;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001809 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01001810 if (srv) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001811 if (s->flags & SN_CURR_SESS) {
1812 s->flags &= ~SN_CURR_SESS;
Willy Tarreau827aee92011-03-10 16:55:02 +01001813 srv->cur_sess--;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001814 }
1815 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001816 if (may_dequeue_tasks(srv, s->be))
1817 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001818 }
1819 }
1820
1821 /*
1822 * Note: of the transient states (REQ, CER, DIS), only REQ may remain
1823 * at this point.
1824 */
1825
Willy Tarreau0be0ef92009-03-08 19:20:25 +01001826 resync_request:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001827 /* Analyse request */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001828 if (((s->req->flags & ~rqf_last) & CF_MASK_ANALYSER) ||
1829 ((s->req->flags ^ rqf_last) & CF_MASK_STATIC) ||
Willy Tarreau815a9b22010-07-27 17:15:12 +02001830 s->si[0].state != rq_prod_last ||
1831 s->si[1].state != rq_cons_last) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001832 unsigned int flags = s->req->flags;
1833
1834 if (s->req->prod->state >= SI_ST_EST) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001835 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001836 unsigned int ana_list;
1837 unsigned int ana_back;
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001838
Willy Tarreau90deb182010-01-07 00:20:41 +01001839 /* it's up to the analysers to stop new connections,
1840 * disable reading or closing. Note: if an analyser
1841 * disables any of these bits, it is responsible for
1842 * enabling them again when it disables itself, so
1843 * that other analysers are called in similar conditions.
1844 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001845 channel_auto_read(s->req);
1846 channel_auto_connect(s->req);
1847 channel_auto_close(s->req);
Willy Tarreauedcf6682008-11-30 23:15:34 +01001848
1849 /* We will call all analysers for which a bit is set in
1850 * s->req->analysers, following the bit order from LSB
1851 * to MSB. The analysers must remove themselves from
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001852 * the list when not needed. Any analyser may return 0
1853 * to break out of the loop, either because of missing
1854 * data to take a decision, or because it decides to
1855 * kill the session. We loop at least once through each
1856 * analyser, and we may loop again if other analysers
1857 * are added in the middle.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001858 *
1859 * We build a list of analysers to run. We evaluate all
1860 * of these analysers in the order of the lower bit to
1861 * the higher bit. This ordering is very important.
1862 * An analyser will often add/remove other analysers,
1863 * including itself. Any changes to itself have no effect
1864 * on the loop. If it removes any other analysers, we
1865 * want those analysers not to be called anymore during
1866 * this loop. If it adds an analyser that is located
1867 * after itself, we want it to be scheduled for being
1868 * processed during the loop. If it adds an analyser
1869 * which is located before it, we want it to switch to
1870 * it immediately, even if it has already been called
1871 * once but removed since.
1872 *
1873 * In order to achieve this, we compare the analyser
1874 * list after the call with a copy of it before the
1875 * call. The work list is fed with analyser bits that
1876 * appeared during the call. Then we compare previous
1877 * work list with the new one, and check the bits that
1878 * appeared. If the lowest of these bits is lower than
1879 * the current bit, it means we have enabled a previous
1880 * analyser and must immediately loop again.
Willy Tarreauedcf6682008-11-30 23:15:34 +01001881 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001882
1883 ana_list = ana_back = s->req->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001884 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001885 /* Warning! ensure that analysers are always placed in ascending order! */
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001886
Willy Tarreaufb356202010-08-03 14:02:05 +02001887 if (ana_list & AN_REQ_INSPECT_FE) {
1888 if (!tcp_inspect_request(s, s->req, AN_REQ_INSPECT_FE))
Willy Tarreauedcf6682008-11-30 23:15:34 +01001889 break;
Willy Tarreaufb356202010-08-03 14:02:05 +02001890 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_INSPECT_FE);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001891 }
Willy Tarreauedcf6682008-11-30 23:15:34 +01001892
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001893 if (ana_list & AN_REQ_WAIT_HTTP) {
Willy Tarreau3a816292009-07-07 10:55:49 +02001894 if (!http_wait_for_request(s, s->req, AN_REQ_WAIT_HTTP))
Willy Tarreaud787e662009-07-07 10:14:51 +02001895 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001896 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_WAIT_HTTP);
Willy Tarreaud787e662009-07-07 10:14:51 +02001897 }
1898
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001899 if (ana_list & AN_REQ_HTTP_PROCESS_FE) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001900 if (!http_process_req_common(s, s->req, AN_REQ_HTTP_PROCESS_FE, s->fe))
1901 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001902 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_PROCESS_FE);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001903 }
1904
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001905 if (ana_list & AN_REQ_SWITCHING_RULES) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001906 if (!process_switching_rules(s, s->req, AN_REQ_SWITCHING_RULES))
1907 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001908 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_SWITCHING_RULES);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001909 }
1910
Willy Tarreaufb356202010-08-03 14:02:05 +02001911 if (ana_list & AN_REQ_INSPECT_BE) {
1912 if (!tcp_inspect_request(s, s->req, AN_REQ_INSPECT_BE))
1913 break;
1914 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_INSPECT_BE);
1915 }
1916
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001917 if (ana_list & AN_REQ_HTTP_PROCESS_BE) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001918 if (!http_process_req_common(s, s->req, AN_REQ_HTTP_PROCESS_BE, s->be))
1919 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001920 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_PROCESS_BE);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001921 }
1922
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001923 if (ana_list & AN_REQ_HTTP_TARPIT) {
Willy Tarreau3a816292009-07-07 10:55:49 +02001924 if (!http_process_tarpit(s, s->req, AN_REQ_HTTP_TARPIT))
Willy Tarreau60b85b02008-11-30 23:28:40 +01001925 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001926 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_TARPIT);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001927 }
Willy Tarreau60b85b02008-11-30 23:28:40 +01001928
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001929 if (ana_list & AN_REQ_SRV_RULES) {
1930 if (!process_server_rules(s, s->req, AN_REQ_SRV_RULES))
1931 break;
1932 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_SRV_RULES);
1933 }
1934
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001935 if (ana_list & AN_REQ_HTTP_INNER) {
Willy Tarreauc465fd72009-08-31 00:17:18 +02001936 if (!http_process_request(s, s->req, AN_REQ_HTTP_INNER))
1937 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001938 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_INNER);
Willy Tarreauc465fd72009-08-31 00:17:18 +02001939 }
1940
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001941 if (ana_list & AN_REQ_HTTP_BODY) {
Willy Tarreau5a8f9472014-04-10 11:16:06 +02001942 if (!http_wait_for_request_body(s, s->req, AN_REQ_HTTP_BODY))
Willy Tarreaud34af782008-11-30 23:36:37 +01001943 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001944 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_BODY);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001945 }
Emeric Brun647caf12009-06-30 17:57:00 +02001946
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001947 if (ana_list & AN_REQ_PRST_RDP_COOKIE) {
Emeric Brun647caf12009-06-30 17:57:00 +02001948 if (!tcp_persist_rdp_cookie(s, s->req, AN_REQ_PRST_RDP_COOKIE))
1949 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001950 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_PRST_RDP_COOKIE);
Emeric Brun647caf12009-06-30 17:57:00 +02001951 }
Willy Tarreaud98cf932009-12-27 22:54:55 +01001952
Emeric Brun1d33b292010-01-04 15:47:17 +01001953 if (ana_list & AN_REQ_STICKING_RULES) {
1954 if (!process_sticking_rules(s, s->req, AN_REQ_STICKING_RULES))
1955 break;
1956 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_STICKING_RULES);
1957 }
1958
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001959 if (ana_list & AN_REQ_HTTP_XFER_BODY) {
Willy Tarreaud98cf932009-12-27 22:54:55 +01001960 if (!http_request_forward_body(s, s->req, AN_REQ_HTTP_XFER_BODY))
1961 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001962 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_XFER_BODY);
Willy Tarreaud98cf932009-12-27 22:54:55 +01001963 }
Willy Tarreaue34070e2010-01-08 00:32:27 +01001964 break;
1965 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001966 }
Willy Tarreau84455332009-03-15 22:34:05 +01001967
Willy Tarreau815a9b22010-07-27 17:15:12 +02001968 rq_prod_last = s->si[0].state;
1969 rq_cons_last = s->si[1].state;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001970 s->req->flags &= ~CF_WAKE_ONCE;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001971 rqf_last = s->req->flags;
1972
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001973 if ((s->req->flags ^ flags) & CF_MASK_STATIC)
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001974 goto resync_request;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001975 }
1976
Willy Tarreau576507f2010-01-07 00:09:04 +01001977 /* we'll monitor the request analysers while parsing the response,
1978 * because some response analysers may indirectly enable new request
1979 * analysers (eg: HTTP keep-alive).
1980 */
1981 req_ana_back = s->req->analysers;
1982
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001983 resync_response:
1984 /* Analyse response */
1985
Willy Tarreaub31c9712012-11-11 23:05:39 +01001986 if (((s->rep->flags & ~rpf_last) & CF_MASK_ANALYSER) ||
Willy Tarreau2a4f5112014-06-23 15:22:31 +02001987 (s->rep->flags ^ rpf_last) & CF_MASK_STATIC ||
1988 s->si[0].state != rp_cons_last ||
1989 s->si[1].state != rp_prod_last) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001990 unsigned int flags = s->rep->flags;
1991
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001992 if ((s->rep->flags & CF_MASK_ANALYSER) &&
Willy Tarreau0499e352010-12-17 07:13:42 +01001993 (s->rep->analysers & AN_REQ_WAIT_HTTP)) {
1994 /* Due to HTTP pipelining, the HTTP request analyser might be waiting
1995 * for some free space in the response buffer, so we might need to call
1996 * it when something changes in the response buffer, but still we pass
1997 * it the request buffer. Note that the SI state might very well still
1998 * be zero due to us returning a flow of redirects!
1999 */
2000 s->rep->analysers &= ~AN_REQ_WAIT_HTTP;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002001 s->req->flags |= CF_WAKE_ONCE;
Willy Tarreau0499e352010-12-17 07:13:42 +01002002 }
2003
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002004 if (s->rep->prod->state >= SI_ST_EST) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01002005 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002006 unsigned int ana_list;
2007 unsigned int ana_back;
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002008
Willy Tarreau90deb182010-01-07 00:20:41 +01002009 /* it's up to the analysers to stop disable reading or
2010 * closing. Note: if an analyser disables any of these
2011 * bits, it is responsible for enabling them again when
2012 * it disables itself, so that other analysers are called
2013 * in similar conditions.
2014 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002015 channel_auto_read(s->rep);
2016 channel_auto_close(s->rep);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002017
2018 /* We will call all analysers for which a bit is set in
2019 * s->rep->analysers, following the bit order from LSB
2020 * to MSB. The analysers must remove themselves from
2021 * the list when not needed. Any analyser may return 0
2022 * to break out of the loop, either because of missing
2023 * data to take a decision, or because it decides to
2024 * kill the session. We loop at least once through each
2025 * analyser, and we may loop again if other analysers
2026 * are added in the middle.
2027 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002028
2029 ana_list = ana_back = s->rep->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01002030 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002031 /* Warning! ensure that analysers are always placed in ascending order! */
2032
Emeric Brun97679e72010-09-23 17:56:44 +02002033 if (ana_list & AN_RES_INSPECT) {
2034 if (!tcp_inspect_response(s, s->rep, AN_RES_INSPECT))
2035 break;
2036 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_INSPECT);
2037 }
2038
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002039 if (ana_list & AN_RES_WAIT_HTTP) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002040 if (!http_wait_for_response(s, s->rep, AN_RES_WAIT_HTTP))
2041 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002042 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_WAIT_HTTP);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002043 }
2044
Emeric Brun1d33b292010-01-04 15:47:17 +01002045 if (ana_list & AN_RES_STORE_RULES) {
2046 if (!process_store_rules(s, s->rep, AN_RES_STORE_RULES))
2047 break;
2048 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_STORE_RULES);
2049 }
2050
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002051 if (ana_list & AN_RES_HTTP_PROCESS_BE) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002052 if (!http_process_res_common(s, s->rep, AN_RES_HTTP_PROCESS_BE, s->be))
2053 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002054 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_HTTP_PROCESS_BE);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002055 }
Willy Tarreaud98cf932009-12-27 22:54:55 +01002056
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002057 if (ana_list & AN_RES_HTTP_XFER_BODY) {
Willy Tarreaud98cf932009-12-27 22:54:55 +01002058 if (!http_response_forward_body(s, s->rep, AN_RES_HTTP_XFER_BODY))
2059 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002060 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_HTTP_XFER_BODY);
Willy Tarreaud98cf932009-12-27 22:54:55 +01002061 }
Willy Tarreaue34070e2010-01-08 00:32:27 +01002062 break;
2063 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002064 }
2065
Willy Tarreau815a9b22010-07-27 17:15:12 +02002066 rp_cons_last = s->si[0].state;
2067 rp_prod_last = s->si[1].state;
2068 rpf_last = s->rep->flags;
2069
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002070 if ((s->rep->flags ^ flags) & CF_MASK_STATIC)
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002071 goto resync_response;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002072 }
2073
Willy Tarreau576507f2010-01-07 00:09:04 +01002074 /* maybe someone has added some request analysers, so we must check and loop */
2075 if (s->req->analysers & ~req_ana_back)
2076 goto resync_request;
2077
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002078 if ((s->req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0499e352010-12-17 07:13:42 +01002079 goto resync_request;
2080
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002081 /* FIXME: here we should call protocol handlers which rely on
2082 * both buffers.
2083 */
2084
2085
2086 /*
Willy Tarreauae526782010-03-04 20:34:23 +01002087 * Now we propagate unhandled errors to the session. Normally
2088 * we're just in a data phase here since it means we have not
2089 * seen any analyser who could set an error status.
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002090 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002091 srv = objt_server(s->target);
Willy Tarreau2f976e12010-11-11 14:28:47 +01002092 if (unlikely(!(s->flags & SN_ERR_MASK))) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002093 if (s->req->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002094 /* Report it if the client got an error or a read timeout expired */
Willy Tarreau84455332009-03-15 22:34:05 +01002095 s->req->analysers = 0;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002096 if (s->req->flags & CF_READ_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002097 s->be->be_counters.cli_aborts++;
2098 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002099 if (srv)
2100 srv->counters.cli_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002101 s->flags |= SN_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002102 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002103 else if (s->req->flags & CF_READ_TIMEOUT) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002104 s->be->be_counters.cli_aborts++;
2105 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002106 if (srv)
2107 srv->counters.cli_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002108 s->flags |= SN_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01002109 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002110 else if (s->req->flags & CF_WRITE_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002111 s->be->be_counters.srv_aborts++;
2112 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002113 if (srv)
2114 srv->counters.srv_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002115 s->flags |= SN_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002116 }
2117 else {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002118 s->be->be_counters.srv_aborts++;
2119 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002120 if (srv)
2121 srv->counters.srv_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002122 s->flags |= SN_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002123 }
Willy Tarreau84455332009-03-15 22:34:05 +01002124 sess_set_term_flags(s);
2125 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002126 else if (s->rep->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002127 /* Report it if the server got an error or a read timeout expired */
2128 s->rep->analysers = 0;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002129 if (s->rep->flags & CF_READ_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002130 s->be->be_counters.srv_aborts++;
2131 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002132 if (srv)
2133 srv->counters.srv_aborts++;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002134 s->flags |= SN_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002135 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002136 else if (s->rep->flags & CF_READ_TIMEOUT) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002137 s->be->be_counters.srv_aborts++;
2138 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002139 if (srv)
2140 srv->counters.srv_aborts++;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002141 s->flags |= SN_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002142 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002143 else if (s->rep->flags & CF_WRITE_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002144 s->be->be_counters.cli_aborts++;
2145 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002146 if (srv)
2147 srv->counters.cli_aborts++;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002148 s->flags |= SN_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002149 }
2150 else {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002151 s->be->be_counters.cli_aborts++;
2152 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002153 if (srv)
2154 srv->counters.cli_aborts++;
Willy Tarreauae526782010-03-04 20:34:23 +01002155 s->flags |= SN_ERR_CLITO;
2156 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002157 sess_set_term_flags(s);
2158 }
Willy Tarreau84455332009-03-15 22:34:05 +01002159 }
2160
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002161 /*
2162 * Here we take care of forwarding unhandled data. This also includes
2163 * connection establishments and shutdown requests.
2164 */
2165
2166
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002167 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002168 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002169 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002170 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002171 */
Willy Tarreau2b028dd2013-12-31 23:56:46 +01002172 if (unlikely(!s->req->analysers &&
Willy Tarreaub31c9712012-11-11 23:05:39 +01002173 !(s->req->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau31971e52009-09-20 12:07:52 +02002174 (s->req->prod->state >= SI_ST_EST) &&
Willy Tarreau2b028dd2013-12-31 23:56:46 +01002175 (s->req->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002176 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002177 * attached to it. If any data are left in, we'll permit them to
2178 * move.
2179 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002180 channel_auto_read(s->req);
2181 channel_auto_connect(s->req);
2182 channel_auto_close(s->req);
Willy Tarreau9b28e032012-10-12 23:49:43 +02002183 buffer_flush(s->req->buf);
Willy Tarreau5bd8c372009-01-19 00:32:22 +01002184
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002185 /* We'll let data flow between the producer (if still connected)
2186 * to the consumer (which might possibly not be connected yet).
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002187 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002188 if (!(s->req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Willy Tarreau74602122016-05-04 14:05:58 +02002189 channel_forward_forever(s->req);
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002190 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002191
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002192 /* check if it is wise to enable kernel splicing to forward request data */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002193 if (!(s->req->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002194 s->req->to_forward &&
2195 (global.tune.options & GTUNE_USE_SPLICE) &&
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002196 (objt_conn(s->si[0].end) && __objt_conn(s->si[0].end)->xprt && __objt_conn(s->si[0].end)->xprt->rcv_pipe) &&
2197 (objt_conn(s->si[1].end) && __objt_conn(s->si[1].end)->xprt && __objt_conn(s->si[1].end)->xprt->snd_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002198 (pipes_used < global.maxpipes) &&
2199 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_REQ) ||
2200 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002201 (s->req->flags & CF_STREAMER_FAST)))) {
2202 s->req->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002203 }
2204
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002205 /* reflect what the L7 analysers have seen last */
2206 rqf_last = s->req->flags;
2207
2208 /*
2209 * Now forward all shutdown requests between both sides of the buffer
2210 */
2211
Willy Tarreau520d95e2009-09-19 21:04:57 +02002212 /* first, let's check if the request buffer needs to shutdown(write), which may
2213 * happen either because the input is closed or because we want to force a close
Willy Tarreau05cdd962014-05-10 14:30:07 +02002214 * once the server has begun to respond. If a half-closed timeout is set, we adjust
2215 * the other side's timeout as well.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002216 */
Willy Tarreaub31c9712012-11-11 23:05:39 +01002217 if (unlikely((s->req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau05cdd962014-05-10 14:30:07 +02002218 (CF_AUTO_CLOSE|CF_SHUTR))) {
2219 channel_shutw_now(s->req);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002220 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002221
2222 /* shutdown(write) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002223 if (unlikely((s->req->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
Willy Tarreau8615c2a2013-06-21 08:20:19 +02002224 channel_is_empty(s->req))) {
2225 if (s->req->flags & CF_READ_ERROR)
2226 s->req->cons->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02002227 si_shutw(s->req->cons);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002228 if (tick_isset(s->be->timeout.serverfin)) {
2229 s->rep->rto = s->be->timeout.serverfin;
2230 s->rep->rex = tick_add(now_ms, s->rep->rto);
2231 }
Willy Tarreau8615c2a2013-06-21 08:20:19 +02002232 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002233
2234 /* shutdown(write) done on server side, we must stop the client too */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002235 if (unlikely((s->req->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW &&
Willy Tarreau3dbc6942008-12-07 13:05:04 +01002236 !s->req->analysers))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002237 channel_shutr_now(s->req);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002238
2239 /* shutdown(read) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002240 if (unlikely((s->req->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002241 if (s->req->prod->flags & SI_FL_NOHALF)
2242 s->req->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02002243 si_shutr(s->req->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002244 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002245
Willy Tarreau520d95e2009-09-19 21:04:57 +02002246 /* it's possible that an upper layer has requested a connection setup or abort.
2247 * There are 2 situations where we decide to establish a new connection :
2248 * - there are data scheduled for emission in the buffer
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002249 * - the CF_AUTO_CONNECT flag is set (active connection)
Willy Tarreau520d95e2009-09-19 21:04:57 +02002250 */
2251 if (s->req->cons->state == SI_ST_INI) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002252 if (!(s->req->flags & CF_SHUTW)) {
2253 if ((s->req->flags & CF_AUTO_CONNECT) || !channel_is_empty(s->req)) {
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002254 /* If we have an appctx, there is no connect method, so we
2255 * immediately switch to the connected state, otherwise we
2256 * perform a connection request.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002257 */
Willy Tarreau85e7d002010-05-31 11:57:51 +02002258 s->req->cons->state = SI_ST_REQ; /* new connection requested */
Willy Tarreau070ceb62010-06-01 10:36:43 +02002259 s->req->cons->conn_retries = s->be->conn_retries;
Willy Tarreau520d95e2009-09-19 21:04:57 +02002260 }
Willy Tarreau73201222009-08-16 18:27:24 +02002261 }
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002262 else {
Willy Tarreau92795622009-03-06 12:51:23 +01002263 s->req->cons->state = SI_ST_CLO; /* shutw+ini = abort */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002264 channel_shutw_now(s->req); /* fix buffer flags upon abort */
2265 channel_shutr_now(s->rep);
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002266 }
Willy Tarreau92795622009-03-06 12:51:23 +01002267 }
2268
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002269
2270 /* we may have a pending connection request, or a connection waiting
2271 * for completion.
2272 */
2273 if (s->si[1].state >= SI_ST_REQ && s->si[1].state < SI_ST_CON) {
2274 do {
2275 /* nb: step 1 might switch from QUE to ASS, but we first want
2276 * to give a chance to step 2 to perform a redirect if needed.
2277 */
2278 if (s->si[1].state != SI_ST_REQ)
2279 sess_update_stream_int(s, &s->si[1]);
Willy Tarreaub44c8732013-12-31 23:16:50 +01002280 if (s->si[1].state == SI_ST_REQ)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002281 sess_prepare_conn_req(s, &s->si[1]);
2282
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +01002283 /* applets directly go to the ESTABLISHED state. Similarly,
2284 * servers experience the same fate when their connection
2285 * is reused.
2286 */
Willy Tarreaub44c8732013-12-31 23:16:50 +01002287 if (unlikely(s->si[1].state == SI_ST_EST))
2288 sess_establish(s, &s->si[1]);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01002289
Willy Tarreaub44c8732013-12-31 23:16:50 +01002290 /* Now we can add the server name to a header (if requested) */
2291 /* check for HTTP mode and proxy server_name_hdr_name != NULL */
Willy Tarreau3f34b552015-09-07 19:32:33 +02002292 if ((s->si[1].state >= SI_ST_CON) && (s->si[1].state < SI_ST_CLO) &&
Willy Tarreaub44c8732013-12-31 23:16:50 +01002293 (s->be->server_id_hdr_name != NULL) &&
2294 (s->be->mode == PR_MODE_HTTP) &&
2295 objt_server(s->target)) {
2296 http_send_name_header(&s->txn, s->be, objt_server(s->target)->id);
Willy Tarreau1e5dfda2013-04-07 18:19:16 +02002297 }
2298
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002299 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01002300 if (s->si[1].state == SI_ST_ASS && srv && srv->rdr_len && (s->flags & SN_REDIRECTABLE))
Willy Tarreau71241ab2012-12-27 11:30:54 +01002301 http_perform_server_redirect(s, &s->si[1]);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002302 } while (s->si[1].state == SI_ST_ASS);
2303 }
2304
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002305 /* Benchmarks have shown that it's optimal to do a full resync now */
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002306 if (s->req->prod->state == SI_ST_DIS || s->req->cons->state == SI_ST_DIS)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002307 goto resync_stream_interface;
2308
Willy Tarreau815a9b22010-07-27 17:15:12 +02002309 /* otherwise we want to check if we need to resync the req buffer or not */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002310 if ((s->req->flags ^ rqf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002311 goto resync_request;
2312
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002313 /* perform output updates to the response buffer */
Willy Tarreau84455332009-03-15 22:34:05 +01002314
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002315 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002316 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002317 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002318 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002319 */
Willy Tarreau2b028dd2013-12-31 23:56:46 +01002320 if (unlikely(!s->rep->analysers &&
Willy Tarreaub31c9712012-11-11 23:05:39 +01002321 !(s->rep->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau31971e52009-09-20 12:07:52 +02002322 (s->rep->prod->state >= SI_ST_EST) &&
Willy Tarreau2b028dd2013-12-31 23:56:46 +01002323 (s->rep->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002324 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002325 * attached to it. If any data are left in, we'll permit them to
2326 * move.
2327 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002328 channel_auto_read(s->rep);
2329 channel_auto_close(s->rep);
Willy Tarreau9b28e032012-10-12 23:49:43 +02002330 buffer_flush(s->rep->buf);
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002331
2332 /* We'll let data flow between the producer (if still connected)
2333 * to the consumer.
2334 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002335 if (!(s->rep->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Willy Tarreau74602122016-05-04 14:05:58 +02002336 channel_forward_forever(s->rep);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002337
2338 /* if we have no analyser anymore in any direction and have a
Willy Tarreau05cdd962014-05-10 14:30:07 +02002339 * tunnel timeout set, use it now. Note that we must respect
2340 * the half-closed timeouts as well.
Willy Tarreauce887fd2012-05-12 12:50:00 +02002341 */
2342 if (!s->req->analysers && s->be->timeout.tunnel) {
2343 s->req->rto = s->req->wto = s->rep->rto = s->rep->wto =
2344 s->be->timeout.tunnel;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002345
2346 if ((s->req->flags & CF_SHUTR) && tick_isset(s->fe->timeout.clientfin))
2347 s->rep->wto = s->fe->timeout.clientfin;
2348 if ((s->req->flags & CF_SHUTW) && tick_isset(s->be->timeout.serverfin))
2349 s->rep->rto = s->be->timeout.serverfin;
2350 if ((s->rep->flags & CF_SHUTR) && tick_isset(s->be->timeout.serverfin))
2351 s->req->wto = s->be->timeout.serverfin;
2352 if ((s->rep->flags & CF_SHUTW) && tick_isset(s->fe->timeout.clientfin))
2353 s->req->rto = s->fe->timeout.clientfin;
2354
2355 s->req->rex = tick_add(now_ms, s->req->rto);
2356 s->req->wex = tick_add(now_ms, s->req->wto);
2357 s->rep->rex = tick_add(now_ms, s->rep->rto);
2358 s->rep->wex = tick_add(now_ms, s->rep->wto);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002359 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002360 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002361
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002362 /* check if it is wise to enable kernel splicing to forward response data */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002363 if (!(s->rep->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002364 s->rep->to_forward &&
2365 (global.tune.options & GTUNE_USE_SPLICE) &&
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002366 (objt_conn(s->si[0].end) && __objt_conn(s->si[0].end)->xprt && __objt_conn(s->si[0].end)->xprt->snd_pipe) &&
2367 (objt_conn(s->si[1].end) && __objt_conn(s->si[1].end)->xprt && __objt_conn(s->si[1].end)->xprt->rcv_pipe) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002368 (pipes_used < global.maxpipes) &&
2369 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_RTR) ||
2370 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002371 (s->rep->flags & CF_STREAMER_FAST)))) {
2372 s->rep->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002373 }
2374
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002375 /* reflect what the L7 analysers have seen last */
2376 rpf_last = s->rep->flags;
2377
2378 /*
2379 * Now forward all shutdown requests between both sides of the buffer
2380 */
2381
2382 /*
2383 * FIXME: this is probably where we should produce error responses.
2384 */
2385
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002386 /* first, let's check if the response buffer needs to shutdown(write) */
Willy Tarreaub31c9712012-11-11 23:05:39 +01002387 if (unlikely((s->rep->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau05cdd962014-05-10 14:30:07 +02002388 (CF_AUTO_CLOSE|CF_SHUTR))) {
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002389 channel_shutw_now(s->rep);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002390 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002391
2392 /* shutdown(write) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002393 if (unlikely((s->rep->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
Willy Tarreau05cdd962014-05-10 14:30:07 +02002394 channel_is_empty(s->rep))) {
Willy Tarreau73b013b2012-05-21 16:31:45 +02002395 si_shutw(s->rep->cons);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002396 if (tick_isset(s->fe->timeout.clientfin)) {
2397 s->req->rto = s->fe->timeout.clientfin;
2398 s->req->rex = tick_add(now_ms, s->req->rto);
2399 }
2400 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002401
2402 /* shutdown(write) done on the client side, we must stop the server too */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002403 if (unlikely((s->rep->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW) &&
Willy Tarreau3dbc6942008-12-07 13:05:04 +01002404 !s->rep->analysers)
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002405 channel_shutr_now(s->rep);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002406
2407 /* shutdown(read) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002408 if (unlikely((s->rep->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002409 if (s->rep->prod->flags & SI_FL_NOHALF)
2410 s->rep->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02002411 si_shutr(s->rep->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002412 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002413
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002414 if (s->req->prod->state == SI_ST_DIS || s->req->cons->state == SI_ST_DIS)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002415 goto resync_stream_interface;
2416
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002417 if (s->req->flags != rqf_last)
2418 goto resync_request;
2419
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002420 if ((s->rep->flags ^ rpf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002421 goto resync_response;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002422
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002423 /* we're interested in getting wakeups again */
2424 s->req->prod->flags &= ~SI_FL_DONT_WAKE;
2425 s->req->cons->flags &= ~SI_FL_DONT_WAKE;
2426
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002427 /* This is needed only when debugging is enabled, to indicate
2428 * client-side or server-side close. Please note that in the unlikely
2429 * event where both sides would close at once, the sequence is reported
2430 * on the server side first.
2431 */
2432 if (unlikely((global.mode & MODE_DEBUG) &&
2433 (!(global.mode & MODE_QUIET) ||
2434 (global.mode & MODE_VERBOSE)))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002435 if (s->si[1].state == SI_ST_CLO &&
2436 s->si[1].prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002437 chunk_printf(&trash, "%08x:%s.srvcls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002438 s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002439 objt_conn(s->si[0].end) ? (unsigned short)objt_conn(s->si[0].end)->t.sock.fd : -1,
2440 objt_conn(s->si[1].end) ? (unsigned short)objt_conn(s->si[1].end)->t.sock.fd : -1);
Willy Tarreau89efaed2013-12-13 15:14:55 +01002441 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002442 }
2443
2444 if (s->si[0].state == SI_ST_CLO &&
2445 s->si[0].prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002446 chunk_printf(&trash, "%08x:%s.clicls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002447 s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002448 objt_conn(s->si[0].end) ? (unsigned short)objt_conn(s->si[0].end)->t.sock.fd : -1,
2449 objt_conn(s->si[1].end) ? (unsigned short)objt_conn(s->si[1].end)->t.sock.fd : -1);
Willy Tarreau89efaed2013-12-13 15:14:55 +01002450 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002451 }
2452 }
2453
2454 if (likely((s->rep->cons->state != SI_ST_CLO) ||
2455 (s->req->cons->state > SI_ST_INI && s->req->cons->state < SI_ST_CLO))) {
2456
2457 if ((s->fe->options & PR_O_CONTSTATS) && (s->flags & SN_BE_ASSIGNED))
2458 session_process_counters(s);
2459
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002460 if (s->rep->cons->state == SI_ST_EST && obj_type(s->rep->cons->end) != OBJ_TYPE_APPCTX)
Willy Tarreau73b013b2012-05-21 16:31:45 +02002461 si_update(s->rep->cons);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002462
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002463 if (s->req->cons->state == SI_ST_EST && obj_type(s->req->cons->end) != OBJ_TYPE_APPCTX)
Willy Tarreau73b013b2012-05-21 16:31:45 +02002464 si_update(s->req->cons);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002465
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002466 s->req->flags &= ~(CF_READ_NULL|CF_READ_PARTIAL|CF_WRITE_NULL|CF_WRITE_PARTIAL|CF_READ_ATTACHED);
2467 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 +01002468 s->si[0].prev_state = s->si[0].state;
2469 s->si[1].prev_state = s->si[1].state;
Willy Tarreaub0ef7352008-12-14 13:26:20 +01002470 s->si[0].flags &= ~(SI_FL_ERR|SI_FL_EXP);
2471 s->si[1].flags &= ~(SI_FL_ERR|SI_FL_EXP);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002472
Willy Tarreau2a4f5112014-06-23 15:22:31 +02002473 /* Trick: if a request is being waiting for the server to respond,
2474 * and if we know the server can timeout, we don't want the timeout
2475 * to expire on the client side first, but we're still interested
2476 * in passing data from the client to the server (eg: POST). Thus,
2477 * we can cancel the client's request timeout if the server's
2478 * request timeout is set and the server has not yet sent a response.
2479 */
2480
2481 if ((s->rep->flags & (CF_AUTO_CLOSE|CF_SHUTR)) == 0 &&
2482 (tick_isset(s->req->wex) || tick_isset(s->rep->rex))) {
2483 s->req->flags |= CF_READ_NOEXP;
2484 s->req->rex = TICK_ETERNITY;
2485 }
2486
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002487 /* When any of the stream interfaces is attached to an applet,
2488 * we have to call it here. Note that this one may wake the
2489 * task up again. If at least one applet was called, the current
2490 * task might have been woken up, in which case we don't want it
2491 * to be requeued to the wait queue but rather to the run queue
2492 * to run ASAP. The bitwise "or" in the condition ensures that
2493 * both functions are always called and that we wake up if at
2494 * least one did something.
Willy Tarreau1accfc02009-09-05 20:57:35 +02002495 */
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002496 if ((si_applet_call(s->req->cons) | si_applet_call(s->rep->cons)) != 0) {
Willy Tarreau1accfc02009-09-05 20:57:35 +02002497 if (task_in_rq(t)) {
Willy Tarreau1accfc02009-09-05 20:57:35 +02002498 t->expire = TICK_ETERNITY;
2499 return t;
2500 }
2501 }
2502
Willy Tarreau798f4322012-11-08 14:49:17 +01002503 update_exp_and_leave:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002504 t->expire = tick_first(tick_first(s->req->rex, s->req->wex),
2505 tick_first(s->rep->rex, s->rep->wex));
2506 if (s->req->analysers)
2507 t->expire = tick_first(t->expire, s->req->analyse_exp);
2508
2509 if (s->si[0].exp)
2510 t->expire = tick_first(t->expire, s->si[0].exp);
2511
2512 if (s->si[1].exp)
2513 t->expire = tick_first(t->expire, s->si[1].exp);
2514
2515#ifdef DEBUG_FULL
Willy Tarreau127334e2009-03-28 10:47:26 +01002516 fprintf(stderr,
2517 "[%u] queuing with exp=%u req->rex=%u req->wex=%u req->ana_exp=%u"
2518 " rep->rex=%u rep->wex=%u, si[0].exp=%u, si[1].exp=%u, cs=%d, ss=%d\n",
2519 now_ms, t->expire, s->req->rex, s->req->wex, s->req->analyse_exp,
2520 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 +01002521#endif
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002522
2523#ifdef DEBUG_DEV
2524 /* this may only happen when no timeout is set or in case of an FSM bug */
Willy Tarreaud0a201b2009-03-08 15:53:06 +01002525 if (!tick_isset(t->expire))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002526 ABORT_NOW();
2527#endif
Willy Tarreau26c25062009-03-08 09:38:41 +01002528 return t; /* nothing more to do */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002529 }
2530
2531 s->fe->feconn--;
2532 if (s->flags & SN_BE_ASSIGNED)
2533 s->be->beconn--;
Willy Tarreauaf7ad002010-08-31 15:39:26 +02002534 jobs--;
Thierry FOURNIERa47a94f2014-03-20 15:42:53 +01002535 if (s->listener) {
2536 if (!(s->listener->options & LI_O_UNLIMITED))
2537 actconn--;
2538 s->listener->nbconn--;
2539 if (s->listener->state == LI_FULL)
2540 resume_listener(s->listener);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002541
Thierry FOURNIERa47a94f2014-03-20 15:42:53 +01002542 /* Dequeues all of the listeners waiting for a resource */
2543 if (!LIST_ISEMPTY(&global_listener_queue))
2544 dequeue_all_listeners(&global_listener_queue);
Willy Tarreau08ceb102011-07-24 22:58:00 +02002545
Thierry FOURNIERa47a94f2014-03-20 15:42:53 +01002546 if (!LIST_ISEMPTY(&s->fe->listener_queue) &&
2547 (!s->fe->fe_sps_lim || freq_ctr_remain(&s->fe->fe_sess_per_sec, s->fe->fe_sps_lim, 0) > 0))
2548 dequeue_all_listeners(&s->fe->listener_queue);
2549 }
Willy Tarreau07687c12011-07-24 23:55:06 +02002550
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002551 if (unlikely((global.mode & MODE_DEBUG) &&
2552 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)))) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002553 chunk_printf(&trash, "%08x:%s.closed[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002554 s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002555 objt_conn(s->si[0].end) ? (unsigned short)objt_conn(s->si[0].end)->t.sock.fd : -1,
2556 objt_conn(s->si[1].end) ? (unsigned short)objt_conn(s->si[1].end)->t.sock.fd : -1);
Willy Tarreau89efaed2013-12-13 15:14:55 +01002557 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002558 }
2559
2560 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
2561 session_process_counters(s);
2562
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002563 if (s->txn.status) {
2564 int n;
2565
2566 n = s->txn.status / 100;
2567 if (n < 1 || n > 5)
2568 n = 0;
2569
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002570 if (s->fe->mode == PR_MODE_HTTP) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002571 s->fe->fe_counters.p.http.rsp[n]++;
Willy Tarreau8139b992012-11-27 07:35:31 +01002572 if (s->comp_algo && (s->flags & SN_COMP_READY))
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002573 s->fe->fe_counters.p.http.comp_rsp++;
2574 }
Willy Tarreau24657792010-02-26 10:30:28 +01002575 if ((s->flags & SN_BE_ASSIGNED) &&
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002576 (s->be->mode == PR_MODE_HTTP)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002577 s->be->be_counters.p.http.rsp[n]++;
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002578 s->be->be_counters.p.http.cum_req++;
Willy Tarreau8139b992012-11-27 07:35:31 +01002579 if (s->comp_algo && (s->flags & SN_COMP_READY))
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002580 s->be->be_counters.p.http.comp_rsp++;
2581 }
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002582 }
2583
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002584 /* let's do a final log if we need it */
Willy Tarreaud79a3b22012-12-28 09:40:16 +01002585 if (!LIST_ISEMPTY(&s->fe->logformat) && s->logs.logwait &&
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002586 !(s->flags & SN_MONITOR) &&
2587 (!(s->fe->options & PR_O_NULLNOLOG) || s->req->total)) {
Willy Tarreaua5555ec2008-11-30 19:02:32 +01002588 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002589 }
2590
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002591 /* update time stats for this session */
2592 session_update_time_stats(s);
2593
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002594 /* the task MUST not be in the run queue anymore */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002595 session_free(s);
Willy Tarreau26c25062009-03-08 09:38:41 +01002596 task_delete(t);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002597 task_free(t);
Willy Tarreau26c25062009-03-08 09:38:41 +01002598 return NULL;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002599}
2600
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002601/* Update the session's backend and server time stats */
2602void session_update_time_stats(struct session *s)
2603{
2604 int t_request;
2605 int t_queue;
2606 int t_connect;
2607 int t_data;
2608 int t_close;
2609 struct server *srv;
2610
2611 t_request = 0;
2612 t_queue = s->logs.t_queue;
2613 t_connect = s->logs.t_connect;
2614 t_close = s->logs.t_close;
2615 t_data = s->logs.t_data;
2616
2617 if (s->be->mode != PR_MODE_HTTP)
2618 t_data = t_connect;
2619
2620 if (t_connect < 0 || t_data < 0)
2621 return;
2622
2623 if (tv_isge(&s->logs.tv_request, &s->logs.tv_accept))
2624 t_request = tv_ms_elapsed(&s->logs.tv_accept, &s->logs.tv_request);
2625
2626 t_data -= t_connect;
2627 t_connect -= t_queue;
2628 t_queue -= t_request;
2629
2630 srv = objt_server(s->target);
2631 if (srv) {
2632 swrate_add(&srv->counters.q_time, TIME_STATS_SAMPLES, t_queue);
2633 swrate_add(&srv->counters.c_time, TIME_STATS_SAMPLES, t_connect);
2634 swrate_add(&srv->counters.d_time, TIME_STATS_SAMPLES, t_data);
2635 swrate_add(&srv->counters.t_time, TIME_STATS_SAMPLES, t_close);
2636 }
2637 swrate_add(&s->be->be_counters.q_time, TIME_STATS_SAMPLES, t_queue);
2638 swrate_add(&s->be->be_counters.c_time, TIME_STATS_SAMPLES, t_connect);
2639 swrate_add(&s->be->be_counters.d_time, TIME_STATS_SAMPLES, t_data);
2640 swrate_add(&s->be->be_counters.t_time, TIME_STATS_SAMPLES, t_close);
2641}
2642
Willy Tarreau7c669d72008-06-20 15:04:11 +02002643/*
2644 * This function adjusts sess->srv_conn and maintains the previous and new
2645 * server's served session counts. Setting newsrv to NULL is enough to release
2646 * current connection slot. This function also notifies any LB algo which might
2647 * expect to be informed about any change in the number of active sessions on a
2648 * server.
2649 */
2650void sess_change_server(struct session *sess, struct server *newsrv)
2651{
2652 if (sess->srv_conn == newsrv)
2653 return;
2654
2655 if (sess->srv_conn) {
2656 sess->srv_conn->served--;
2657 if (sess->srv_conn->proxy->lbprm.server_drop_conn)
2658 sess->srv_conn->proxy->lbprm.server_drop_conn(sess->srv_conn);
Simon Hormanaf514952011-06-21 14:34:57 +09002659 session_del_srv_conn(sess);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002660 }
2661
2662 if (newsrv) {
2663 newsrv->served++;
2664 if (newsrv->proxy->lbprm.server_take_conn)
2665 newsrv->proxy->lbprm.server_take_conn(newsrv);
Simon Hormanaf514952011-06-21 14:34:57 +09002666 session_add_srv_conn(sess, newsrv);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002667 }
2668}
2669
Willy Tarreau84455332009-03-15 22:34:05 +01002670/* Handle server-side errors for default protocols. It is called whenever a a
2671 * connection setup is aborted or a request is aborted in queue. It sets the
2672 * session termination flags so that the caller does not have to worry about
2673 * them. It's installed as ->srv_error for the server-side stream_interface.
2674 */
2675void default_srv_error(struct session *s, struct stream_interface *si)
2676{
2677 int err_type = si->err_type;
2678 int err = 0, fin = 0;
2679
2680 if (err_type & SI_ET_QUEUE_ABRT) {
2681 err = SN_ERR_CLICL;
2682 fin = SN_FINST_Q;
2683 }
2684 else if (err_type & SI_ET_CONN_ABRT) {
2685 err = SN_ERR_CLICL;
2686 fin = SN_FINST_C;
2687 }
2688 else if (err_type & SI_ET_QUEUE_TO) {
2689 err = SN_ERR_SRVTO;
2690 fin = SN_FINST_Q;
2691 }
2692 else if (err_type & SI_ET_QUEUE_ERR) {
2693 err = SN_ERR_SRVCL;
2694 fin = SN_FINST_Q;
2695 }
2696 else if (err_type & SI_ET_CONN_TO) {
2697 err = SN_ERR_SRVTO;
2698 fin = SN_FINST_C;
2699 }
2700 else if (err_type & SI_ET_CONN_ERR) {
2701 err = SN_ERR_SRVCL;
2702 fin = SN_FINST_C;
2703 }
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002704 else if (err_type & SI_ET_CONN_RES) {
2705 err = SN_ERR_RESOURCE;
2706 fin = SN_FINST_C;
2707 }
Willy Tarreau84455332009-03-15 22:34:05 +01002708 else /* SI_ET_CONN_OTHER and others */ {
2709 err = SN_ERR_INTERNAL;
2710 fin = SN_FINST_C;
2711 }
2712
2713 if (!(s->flags & SN_ERR_MASK))
2714 s->flags |= err;
2715 if (!(s->flags & SN_FINST_MASK))
2716 s->flags |= fin;
2717}
Willy Tarreau7c669d72008-06-20 15:04:11 +02002718
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002719/* kill a session and set the termination flags to <why> (one of SN_ERR_*) */
2720void session_shutdown(struct session *session, int why)
2721{
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002722 if (session->req->flags & (CF_SHUTW|CF_SHUTW_NOW))
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002723 return;
2724
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002725 channel_shutw_now(session->req);
2726 channel_shutr_now(session->rep);
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002727 session->task->nice = 1024;
2728 if (!(session->flags & SN_ERR_MASK))
2729 session->flags |= why;
2730 task_wakeup(session->task, TASK_WOKEN_OTHER);
2731}
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02002732
Willy Tarreau8b22a712010-06-18 17:46:06 +02002733/************************************************************************/
2734/* All supported ACL keywords must be declared here. */
2735/************************************************************************/
2736
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002737/* Returns a pointer to a stkctr depending on the fetch keyword name.
2738 * It is designed to be called as sc[0-9]_* sc_* or src_* exclusively.
Willy Tarreaua65536c2013-07-22 22:40:11 +02002739 * sc[0-9]_* will return a pointer to the respective field in the
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002740 * session <l4>. sc_* requires an UINT argument specifying the stick
2741 * counter number. src_* will fill a locally allocated structure with
Willy Tarreaua65536c2013-07-22 22:40:11 +02002742 * the table and entry corresponding to what is specified with src_*.
Willy Tarreau0f791d42013-07-23 19:56:43 +02002743 * NULL may be returned if the designated stkctr is not tracked. For
2744 * the sc_* and sc[0-9]_* forms, an optional table argument may be
2745 * passed. When present, the currently tracked key is then looked up
2746 * in the specified table instead of the current table. The purpose is
2747 * to be able to convery multiple values per key (eg: have gpc0 from
2748 * multiple tables).
Willy Tarreaua65536c2013-07-22 22:40:11 +02002749 */
2750static struct stkctr *
2751smp_fetch_sc_stkctr(struct session *l4, const struct arg *args, const char *kw)
2752{
2753 static struct stkctr stkctr;
Willy Tarreau6a0b6bd2014-04-09 13:25:42 +02002754 struct stksess *stksess;
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002755 unsigned int num = kw[2] - '0';
Willy Tarreau0f791d42013-07-23 19:56:43 +02002756 int arg = 0;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002757
Willy Tarreau0f791d42013-07-23 19:56:43 +02002758 if (num == '_' - '0') {
2759 /* sc_* variant, args[0] = ctr# (mandatory) */
2760 num = args[arg++].data.uint;
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002761 if (num >= MAX_SESS_STKCTR)
2762 return NULL;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002763 }
Willy Tarreau0f791d42013-07-23 19:56:43 +02002764 else if (num > 9) { /* src_* variant, args[0] = table */
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002765 struct stktable_key *key;
2766 struct connection *conn = objt_conn(l4->si[0].end);
2767
2768 if (!conn)
2769 return NULL;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002770
Thierry FOURNIER74c219d2014-04-14 14:35:40 +02002771 key = addr_to_stktable_key(&conn->addr.from, args->data.prx->table.type);
Willy Tarreaua65536c2013-07-22 22:40:11 +02002772 if (!key)
2773 return NULL;
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002774
Willy Tarreaua65536c2013-07-22 22:40:11 +02002775 stkctr.table = &args->data.prx->table;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002776 stkctr_set_entry(&stkctr, stktable_lookup_key(stkctr.table, key));
Willy Tarreaua65536c2013-07-22 22:40:11 +02002777 return &stkctr;
2778 }
Willy Tarreau0f791d42013-07-23 19:56:43 +02002779
2780 /* Here, <num> contains the counter number from 0 to 9 for
2781 * the sc[0-9]_ form, or even higher using sc_(num) if needed.
2782 * args[arg] is the first optional argument.
2783 */
Willy Tarreau6a0b6bd2014-04-09 13:25:42 +02002784 stksess = stkctr_entry(&l4->stkctr[num]);
2785 if (!stksess)
2786 return NULL;
2787
Willy Tarreau0f791d42013-07-23 19:56:43 +02002788 if (unlikely(args[arg].type == ARGT_TAB)) {
2789 /* an alternate table was specified, let's look up the same key there */
2790 stkctr.table = &args[arg].data.prx->table;
Willy Tarreau6a0b6bd2014-04-09 13:25:42 +02002791 stkctr_set_entry(&stkctr, stktable_lookup(stkctr.table, stksess));
Willy Tarreau0f791d42013-07-23 19:56:43 +02002792 return &stkctr;
2793 }
Willy Tarreau6a0b6bd2014-04-09 13:25:42 +02002794 return &l4->stkctr[num];
Willy Tarreaua65536c2013-07-22 22:40:11 +02002795}
2796
Willy Tarreauee121452015-08-18 17:15:20 +02002797/* same as smp_fetch_sc_stkctr() but dedicated to src_* and can create
2798 * the entry if it doesn't exist yet. This is needed for a few fetch
2799 * functions which need to create an entry, such as src_inc_gpc* and
2800 * src_clr_gpc*.
2801 */
2802struct stkctr *
2803smp_create_src_stkctr(struct session *sess, const struct arg *args, const char *kw)
2804{
2805 static struct stkctr stkctr;
2806 struct stktable_key *key;
2807 struct connection *conn = objt_conn(sess->si[0].end);
2808
2809 if (strncmp(kw, "src_", 4) != 0)
2810 return NULL;
2811
2812 if (!conn)
2813 return NULL;
2814
2815 key = addr_to_stktable_key(&conn->addr.from, args->data.prx->table.type);
2816 if (!key)
2817 return NULL;
2818
2819 stkctr.table = &args->data.prx->table;
2820 stkctr_set_entry(&stkctr, stktable_update_key(stkctr.table, key));
2821 return &stkctr;
2822}
2823
Willy Tarreau88821242013-07-22 18:29:29 +02002824/* set return a boolean indicating if the requested session counter is
2825 * currently being tracked or not.
2826 * Supports being called as "sc[0-9]_tracked" only.
2827 */
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002828static int
Willy Tarreau88821242013-07-22 18:29:29 +02002829smp_fetch_sc_tracked(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02002830 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002831{
2832 smp->flags = SMP_F_VOL_TEST;
2833 smp->type = SMP_T_BOOL;
Thierry FOURNIERd988f212014-04-15 01:15:52 +02002834 smp->data.uint = !!smp_fetch_sc_stkctr(l4, args, kw);
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002835 return 1;
2836}
2837
Willy Tarreau30b20462013-07-22 19:46:52 +02002838/* set <smp> to the General Purpose Counter 0 value from the session's tracked
2839 * frontend counters or from the src.
2840 * Supports being called as "sc[0-9]_get_gpc0" or "src_get_gpc0" only. Value
2841 * zero is returned if the key is new.
2842 */
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002843static int
Willy Tarreau30b20462013-07-22 19:46:52 +02002844smp_fetch_sc_get_gpc0(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2845 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002846{
Willy Tarreau30b20462013-07-22 19:46:52 +02002847 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2848
2849 if (!stkctr)
2850 return 0;
2851
Willy Tarreau37406352012-04-23 16:16:37 +02002852 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002853 smp->type = SMP_T_UINT;
2854 smp->data.uint = 0;
Willy Tarreau30b20462013-07-22 19:46:52 +02002855
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002856 if (stkctr_entry(stkctr) != NULL) {
2857 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0);
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002858 if (!ptr)
2859 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002860 smp->data.uint = stktable_data_cast(ptr, gpc0);
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002861 }
2862 return 1;
2863}
2864
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002865/* set <smp> to the General Purpose Counter 0's event rate from the session's
2866 * tracked frontend counters or from the src.
2867 * Supports being called as "sc[0-9]_gpc0_rate" or "src_gpc0_rate" only.
2868 * Value zero is returned if the key is new.
2869 */
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002870static int
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002871smp_fetch_sc_gpc0_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2872 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002873{
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002874 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2875
2876 if (!stkctr)
2877 return 0;
2878
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002879 smp->flags = SMP_F_VOL_TEST;
2880 smp->type = SMP_T_UINT;
2881 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002882 if (stkctr_entry(stkctr) != NULL) {
2883 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0_RATE);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002884 if (!ptr)
2885 return 0; /* parameter not stored */
2886 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, gpc0_rate),
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002887 stkctr->table->data_arg[STKTABLE_DT_GPC0_RATE].u);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002888 }
2889 return 1;
2890}
2891
Willy Tarreau710d38c2013-07-23 00:07:04 +02002892/* Increment the General Purpose Counter 0 value from the session's tracked
2893 * frontend counters and return it into temp integer.
2894 * Supports being called as "sc[0-9]_inc_gpc0" or "src_inc_gpc0" only.
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002895 */
2896static int
Willy Tarreau710d38c2013-07-23 00:07:04 +02002897smp_fetch_sc_inc_gpc0(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2898 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002899{
Willy Tarreau710d38c2013-07-23 00:07:04 +02002900 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2901
2902 if (!stkctr)
2903 return 0;
2904
Willy Tarreauee121452015-08-18 17:15:20 +02002905 if (stkctr_entry(stkctr) == NULL)
2906 stkctr = smp_create_src_stkctr(l4, args, kw);
2907
Willy Tarreau37406352012-04-23 16:16:37 +02002908 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002909 smp->type = SMP_T_UINT;
2910 smp->data.uint = 0;
Thierry Fournier294c8d22016-06-06 18:28:05 +02002911 if (stkctr && stkctr_entry(stkctr)) {
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002912 void *ptr;
2913
2914 /* First, update gpc0_rate if it's tracked. Second, update its
2915 * gpc0 if tracked. Returns gpc0's value otherwise the curr_ctr.
2916 */
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002917 ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0_RATE);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002918 if (ptr) {
2919 update_freq_ctr_period(&stktable_data_cast(ptr, gpc0_rate),
Willy Tarreau710d38c2013-07-23 00:07:04 +02002920 stkctr->table->data_arg[STKTABLE_DT_GPC0_RATE].u, 1);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002921 smp->data.uint = (&stktable_data_cast(ptr, gpc0_rate))->curr_ctr;
2922 }
2923
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002924 ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002925 if (ptr)
2926 smp->data.uint = ++stktable_data_cast(ptr, gpc0);
2927
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002928 }
2929 return 1;
2930}
2931
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002932/* Clear the General Purpose Counter 0 value from the session's tracked
2933 * frontend counters and return its previous value into temp integer.
2934 * Supports being called as "sc[0-9]_clr_gpc0" or "src_clr_gpc0" only.
Willy Tarreauf73cd112011-08-13 01:45:16 +02002935 */
2936static int
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002937smp_fetch_sc_clr_gpc0(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2938 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauf73cd112011-08-13 01:45:16 +02002939{
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002940 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2941
2942 if (!stkctr)
2943 return 0;
2944
Willy Tarreauee121452015-08-18 17:15:20 +02002945 if (stkctr_entry(stkctr) == NULL)
2946 stkctr = smp_create_src_stkctr(l4, args, kw);
2947
Willy Tarreau37406352012-04-23 16:16:37 +02002948 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002949 smp->type = SMP_T_UINT;
2950 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002951 if (stkctr_entry(stkctr) != NULL) {
2952 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0);
Willy Tarreauf73cd112011-08-13 01:45:16 +02002953 if (!ptr)
2954 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002955 smp->data.uint = stktable_data_cast(ptr, gpc0);
Willy Tarreauf73cd112011-08-13 01:45:16 +02002956 stktable_data_cast(ptr, gpc0) = 0;
2957 }
2958 return 1;
2959}
2960
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002961/* set <smp> to the cumulated number of connections from the session's tracked
2962 * frontend counters. Supports being called as "sc[0-9]_conn_cnt" or
2963 * "src_conn_cnt" only.
2964 */
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002965static int
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002966smp_fetch_sc_conn_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2967 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002968{
Willy Tarreau3b46c5c2013-07-23 00:22:50 +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 Tarreaucc08d2c2014-01-28 23:18:23 +01002977 if (stkctr_entry(stkctr) != NULL) {
2978 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_CONN_CNT);
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002979 if (!ptr)
2980 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002981 smp->data.uint = stktable_data_cast(ptr, conn_cnt);
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002982 }
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002983 return 1;
2984}
2985
Willy Tarreauc8c65702013-07-23 15:09:35 +02002986/* set <smp> to the connection rate from the session's tracked frontend
2987 * counters. Supports being called as "sc[0-9]_conn_rate" or "src_conn_rate"
2988 * only.
2989 */
Willy Tarreau91c43d72010-06-20 11:19:22 +02002990static int
Willy Tarreauc8c65702013-07-23 15:09:35 +02002991smp_fetch_sc_conn_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2992 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau91c43d72010-06-20 11:19:22 +02002993{
Willy Tarreauc8c65702013-07-23 15:09:35 +02002994 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2995
2996 if (!stkctr)
2997 return 0;
2998
Willy Tarreau37406352012-04-23 16:16:37 +02002999 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003000 smp->type = SMP_T_UINT;
3001 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003002 if (stkctr_entry(stkctr) != NULL) {
3003 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_CONN_RATE);
Willy Tarreau91c43d72010-06-20 11:19:22 +02003004 if (!ptr)
3005 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003006 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, conn_rate),
Willy Tarreauc8c65702013-07-23 15:09:35 +02003007 stkctr->table->data_arg[STKTABLE_DT_CONN_RATE].u);
Willy Tarreau91c43d72010-06-20 11:19:22 +02003008 }
3009 return 1;
3010}
3011
Willy Tarreaua5e37562011-12-16 17:06:15 +01003012/* set temp integer to the number of connections from the session's source address
Willy Tarreau8b22a712010-06-18 17:46:06 +02003013 * in the table pointed to by expr, after updating it.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02003014 * Accepts exactly 1 argument of type table.
Willy Tarreau8b22a712010-06-18 17:46:06 +02003015 */
3016static int
Willy Tarreau281c7992013-01-08 01:23:27 +01003017smp_fetch_src_updt_conn_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02003018 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau8b22a712010-06-18 17:46:06 +02003019{
Willy Tarreaub363a1f2013-10-01 10:45:07 +02003020 struct connection *conn = objt_conn(l4->si[0].end);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003021 struct stksess *ts;
3022 struct stktable_key *key;
3023 void *ptr;
3024
Willy Tarreaub363a1f2013-10-01 10:45:07 +02003025 if (!conn)
3026 return 0;
3027
Thierry FOURNIER74c219d2014-04-14 14:35:40 +02003028 key = addr_to_stktable_key(&conn->addr.from, px->table.type);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003029 if (!key)
David du Colombier4f92d322011-03-24 11:09:31 +01003030 return 0;
Willy Tarreau8b22a712010-06-18 17:46:06 +02003031
Willy Tarreau24e32d82012-04-23 23:55:44 +02003032 px = args->data.prx;
Willy Tarreau8b22a712010-06-18 17:46:06 +02003033
Willy Tarreau1f7e9252010-06-20 12:27:21 +02003034 if ((ts = stktable_update_key(&px->table, key)) == NULL)
3035 /* entry does not exist and could not be created */
3036 return 0;
Willy Tarreau8b22a712010-06-18 17:46:06 +02003037
3038 ptr = stktable_data_ptr(&px->table, ts, STKTABLE_DT_CONN_CNT);
3039 if (!ptr)
3040 return 0; /* parameter not stored in this table */
3041
Willy Tarreauf853c462012-04-23 18:53:56 +02003042 smp->type = SMP_T_UINT;
3043 smp->data.uint = ++stktable_data_cast(ptr, conn_cnt);
Willy Tarreau37406352012-04-23 16:16:37 +02003044 smp->flags = SMP_F_VOL_TEST;
Willy Tarreau8b22a712010-06-18 17:46:06 +02003045 return 1;
3046}
3047
Willy Tarreauf44a5532013-07-23 15:17:53 +02003048/* set <smp> to the number of concurrent connections from the session's tracked
3049 * frontend counters. Supports being called as "sc[0-9]_conn_cur" or
3050 * "src_conn_cur" only.
3051 */
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02003052static int
Willy Tarreauf44a5532013-07-23 15:17:53 +02003053smp_fetch_sc_conn_cur(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3054 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02003055{
Willy Tarreauf44a5532013-07-23 15:17:53 +02003056 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3057
3058 if (!stkctr)
3059 return 0;
3060
Willy Tarreau37406352012-04-23 16:16:37 +02003061 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003062 smp->type = SMP_T_UINT;
3063 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003064 if (stkctr_entry(stkctr) != NULL) {
3065 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_CONN_CUR);
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02003066 if (!ptr)
3067 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003068 smp->data.uint = stktable_data_cast(ptr, conn_cur);
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02003069 }
3070 return 1;
3071}
3072
Willy Tarreau20843082013-07-23 15:35:33 +02003073/* set <smp> to the cumulated number of sessions from the session's tracked
3074 * frontend counters. Supports being called as "sc[0-9]_sess_cnt" or
3075 * "src_sess_cnt" only.
3076 */
Willy Tarreauf4d17d92010-06-18 22:10:12 +02003077static int
Willy Tarreau20843082013-07-23 15:35:33 +02003078smp_fetch_sc_sess_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3079 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauf4d17d92010-06-18 22:10:12 +02003080{
Willy Tarreau20843082013-07-23 15:35:33 +02003081 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3082
3083 if (!stkctr)
3084 return 0;
3085
Willy Tarreau37406352012-04-23 16:16:37 +02003086 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003087 smp->type = SMP_T_UINT;
3088 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003089 if (stkctr_entry(stkctr) != NULL) {
3090 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_SESS_CNT);
Willy Tarreauf4d17d92010-06-18 22:10:12 +02003091 if (!ptr)
3092 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003093 smp->data.uint = stktable_data_cast(ptr, sess_cnt);
Willy Tarreauf4d17d92010-06-18 22:10:12 +02003094 }
3095 return 1;
3096}
3097
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02003098/* set <smp> to the session rate from the session's tracked frontend counters.
3099 * Supports being called as "sc[0-9]_sess_rate" or "src_sess_rate" only.
3100 */
Willy Tarreau91c43d72010-06-20 11:19:22 +02003101static int
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02003102smp_fetch_sc_sess_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3103 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau91c43d72010-06-20 11:19:22 +02003104{
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02003105 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3106
3107 if (!stkctr)
3108 return 0;
3109
Willy Tarreau37406352012-04-23 16:16:37 +02003110 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003111 smp->type = SMP_T_UINT;
3112 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003113 if (stkctr_entry(stkctr) != NULL) {
3114 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_SESS_RATE);
Willy Tarreau91c43d72010-06-20 11:19:22 +02003115 if (!ptr)
3116 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003117 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, sess_rate),
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02003118 stkctr->table->data_arg[STKTABLE_DT_SESS_RATE].u);
Willy Tarreau91c43d72010-06-20 11:19:22 +02003119 }
3120 return 1;
3121}
3122
Willy Tarreau91200da2013-07-23 15:55:19 +02003123/* set <smp> to the cumulated number of HTTP requests from the session's tracked
3124 * frontend counters. Supports being called as "sc[0-9]_http_req_cnt" or
3125 * "src_http_req_cnt" only.
3126 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02003127static int
Willy Tarreau91200da2013-07-23 15:55:19 +02003128smp_fetch_sc_http_req_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3129 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02003130{
Willy Tarreau91200da2013-07-23 15:55:19 +02003131 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3132
3133 if (!stkctr)
3134 return 0;
3135
Willy Tarreau37406352012-04-23 16:16:37 +02003136 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003137 smp->type = SMP_T_UINT;
3138 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003139 if (stkctr_entry(stkctr) != NULL) {
3140 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_HTTP_REQ_CNT);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003141 if (!ptr)
3142 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003143 smp->data.uint = stktable_data_cast(ptr, http_req_cnt);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003144 }
3145 return 1;
3146}
3147
Willy Tarreaucf477632013-07-23 16:04:37 +02003148/* set <smp> to the HTTP request rate from the session's tracked frontend
3149 * counters. Supports being called as "sc[0-9]_http_req_rate" or
3150 * "src_http_req_rate" only.
3151 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02003152static int
Willy Tarreaucf477632013-07-23 16:04:37 +02003153smp_fetch_sc_http_req_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3154 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02003155{
Willy Tarreaucf477632013-07-23 16:04:37 +02003156 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3157
3158 if (!stkctr)
3159 return 0;
3160
Willy Tarreau37406352012-04-23 16:16:37 +02003161 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003162 smp->type = SMP_T_UINT;
3163 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003164 if (stkctr_entry(stkctr) != NULL) {
3165 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_HTTP_REQ_RATE);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003166 if (!ptr)
3167 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003168 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, http_req_rate),
Willy Tarreaucf477632013-07-23 16:04:37 +02003169 stkctr->table->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003170 }
3171 return 1;
3172}
3173
Willy Tarreau30d07c32013-07-23 16:45:38 +02003174/* set <smp> to the cumulated number of HTTP requests errors from the session's
3175 * tracked frontend counters. Supports being called as "sc[0-9]_http_err_cnt" or
3176 * "src_http_err_cnt" only.
3177 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02003178static int
Willy Tarreau30d07c32013-07-23 16:45:38 +02003179smp_fetch_sc_http_err_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3180 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02003181{
Willy Tarreau30d07c32013-07-23 16:45:38 +02003182 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3183
3184 if (!stkctr)
3185 return 0;
3186
Willy Tarreau37406352012-04-23 16:16:37 +02003187 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003188 smp->type = SMP_T_UINT;
3189 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003190 if (stkctr_entry(stkctr) != NULL) {
3191 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_HTTP_ERR_CNT);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003192 if (!ptr)
3193 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003194 smp->data.uint = stktable_data_cast(ptr, http_err_cnt);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003195 }
3196 return 1;
3197}
3198
Willy Tarreau9daf2622013-07-23 16:48:54 +02003199/* set <smp> to the HTTP request error rate from the session's tracked frontend
3200 * counters. Supports being called as "sc[0-9]_http_err_rate" or
3201 * "src_http_err_rate" only.
3202 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02003203static int
Willy Tarreau9daf2622013-07-23 16:48:54 +02003204smp_fetch_sc_http_err_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3205 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02003206{
Willy Tarreau9daf2622013-07-23 16:48:54 +02003207 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3208
3209 if (!stkctr)
3210 return 0;
3211
Willy Tarreau37406352012-04-23 16:16:37 +02003212 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003213 smp->type = SMP_T_UINT;
3214 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003215 if (stkctr_entry(stkctr) != NULL) {
3216 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_HTTP_ERR_RATE);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003217 if (!ptr)
3218 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003219 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, http_err_rate),
Willy Tarreau9daf2622013-07-23 16:48:54 +02003220 stkctr->table->data_arg[STKTABLE_DT_HTTP_ERR_RATE].u);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003221 }
3222 return 1;
3223}
3224
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003225/* set <smp> to the number of kbytes received from clients, as found in the
3226 * session's tracked frontend counters. Supports being called as
3227 * "sc[0-9]_kbytes_in" or "src_kbytes_in" only.
3228 */
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003229static int
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003230smp_fetch_sc_kbytes_in(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3231 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003232{
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003233 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3234
3235 if (!stkctr)
3236 return 0;
3237
Willy Tarreau37406352012-04-23 16:16:37 +02003238 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003239 smp->type = SMP_T_UINT;
3240 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003241 if (stkctr_entry(stkctr) != NULL) {
3242 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_IN_CNT);
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003243 if (!ptr)
3244 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003245 smp->data.uint = stktable_data_cast(ptr, bytes_in_cnt) >> 10;
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003246 }
3247 return 1;
3248}
3249
Willy Tarreau613fe992013-07-23 17:39:19 +02003250/* set <smp> to the data rate received from clients in bytes/s, as found
3251 * in the session's tracked frontend counters. Supports being called as
3252 * "sc[0-9]_bytes_in_rate" or "src_bytes_in_rate" only.
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003253 */
3254static int
Willy Tarreau613fe992013-07-23 17:39:19 +02003255smp_fetch_sc_bytes_in_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3256 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003257{
Willy Tarreau613fe992013-07-23 17:39:19 +02003258 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3259
3260 if (!stkctr)
3261 return 0;
3262
Willy Tarreau37406352012-04-23 16:16:37 +02003263 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003264 smp->type = SMP_T_UINT;
3265 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003266 if (stkctr_entry(stkctr) != NULL) {
3267 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_IN_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003268 if (!ptr)
3269 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003270 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, bytes_in_rate),
Willy Tarreau613fe992013-07-23 17:39:19 +02003271 stkctr->table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003272 }
3273 return 1;
3274}
3275
Willy Tarreau53aea102013-07-23 17:39:02 +02003276/* set <smp> to the number of kbytes sent to clients, as found in the
3277 * session's tracked frontend counters. Supports being called as
3278 * "sc[0-9]_kbytes_out" or "src_kbytes_out" only.
3279 */
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003280static int
Willy Tarreau53aea102013-07-23 17:39:02 +02003281smp_fetch_sc_kbytes_out(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3282 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003283{
Willy Tarreau53aea102013-07-23 17:39:02 +02003284 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3285
3286 if (!stkctr)
3287 return 0;
3288
Willy Tarreau37406352012-04-23 16:16:37 +02003289 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003290 smp->type = SMP_T_UINT;
3291 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003292 if (stkctr_entry(stkctr) != NULL) {
3293 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_OUT_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003294 if (!ptr)
3295 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003296 smp->data.uint = stktable_data_cast(ptr, bytes_out_cnt) >> 10;
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003297 }
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003298 return 1;
3299}
3300
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003301/* set <smp> to the data rate sent to clients in bytes/s, as found in the
3302 * session's tracked frontend counters. Supports being called as
3303 * "sc[0-9]_bytes_out_rate" or "src_bytes_out_rate" only.
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003304 */
3305static int
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003306smp_fetch_sc_bytes_out_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3307 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003308{
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003309 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3310
3311 if (!stkctr)
3312 return 0;
3313
Willy Tarreau37406352012-04-23 16:16:37 +02003314 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003315 smp->type = SMP_T_UINT;
3316 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003317 if (stkctr_entry(stkctr) != NULL) {
3318 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_OUT_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003319 if (!ptr)
3320 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003321 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, bytes_out_rate),
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003322 stkctr->table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003323 }
3324 return 1;
3325}
3326
Willy Tarreau563eef42013-07-23 18:32:02 +02003327/* set <smp> to the number of active trackers on the SC entry in the session's
3328 * tracked frontend counters. Supports being called as "sc[0-9]_trackers" only.
3329 */
Willy Tarreau2406db42012-12-09 12:16:43 +01003330static int
Willy Tarreau563eef42013-07-23 18:32:02 +02003331smp_fetch_sc_trackers(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02003332 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau2406db42012-12-09 12:16:43 +01003333{
Willy Tarreau563eef42013-07-23 18:32:02 +02003334 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
Willy Tarreau2406db42012-12-09 12:16:43 +01003335
Willy Tarreau563eef42013-07-23 18:32:02 +02003336 if (!stkctr)
Willy Tarreau2406db42012-12-09 12:16:43 +01003337 return 0;
3338
Willy Tarreau563eef42013-07-23 18:32:02 +02003339 smp->flags = SMP_F_VOL_TEST;
3340 smp->type = SMP_T_UINT;
Willy Tarreau5a5b1f22016-08-14 12:02:55 +02003341 smp->data.uint = stkctr_entry(stkctr) ? stkctr_entry(stkctr)->ref_cnt : 0;
Willy Tarreau563eef42013-07-23 18:32:02 +02003342 return 1;
Willy Tarreaue25c9172013-05-28 18:32:20 +02003343}
3344
Willy Tarreau34db1082012-04-19 17:16:54 +02003345/* set temp integer to the number of used entries in the table pointed to by expr.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02003346 * Accepts exactly 1 argument of type table.
Willy Tarreau34db1082012-04-19 17:16:54 +02003347 */
Willy Tarreauc735a072011-03-29 00:57:02 +02003348static int
Willy Tarreau281c7992013-01-08 01:23:27 +01003349smp_fetch_table_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02003350 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc735a072011-03-29 00:57:02 +02003351{
Willy Tarreau37406352012-04-23 16:16:37 +02003352 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003353 smp->type = SMP_T_UINT;
Willy Tarreau24e32d82012-04-23 23:55:44 +02003354 smp->data.uint = args->data.prx->table.current;
Willy Tarreauc735a072011-03-29 00:57:02 +02003355 return 1;
3356}
3357
Willy Tarreau34db1082012-04-19 17:16:54 +02003358/* set temp integer to the number of free entries in the table pointed to by expr.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02003359 * Accepts exactly 1 argument of type table.
Willy Tarreau34db1082012-04-19 17:16:54 +02003360 */
Willy Tarreauc735a072011-03-29 00:57:02 +02003361static int
Willy Tarreau281c7992013-01-08 01:23:27 +01003362smp_fetch_table_avl(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02003363 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc735a072011-03-29 00:57:02 +02003364{
Willy Tarreau24e32d82012-04-23 23:55:44 +02003365 px = args->data.prx;
Willy Tarreau37406352012-04-23 16:16:37 +02003366 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003367 smp->type = SMP_T_UINT;
3368 smp->data.uint = px->table.size - px->table.current;
Willy Tarreauc735a072011-03-29 00:57:02 +02003369 return 1;
3370}
Willy Tarreau8b22a712010-06-18 17:46:06 +02003371
Willy Tarreau61612d42012-04-19 18:42:05 +02003372/* Note: must not be declared <const> as its list will be overwritten.
3373 * Please take care of keeping this list alphabetically sorted.
3374 */
Willy Tarreaudc13c112013-06-21 23:16:39 +02003375static struct acl_kw_list acl_kws = {ILH, {
Willy Tarreau281c7992013-01-08 01:23:27 +01003376 { /* END */ },
Willy Tarreau8b22a712010-06-18 17:46:06 +02003377}};
3378
Willy Tarreau281c7992013-01-08 01:23:27 +01003379/* Note: must not be declared <const> as its list will be overwritten.
3380 * Please take care of keeping this list alphabetically sorted.
3381 */
Willy Tarreaudc13c112013-06-21 23:16:39 +02003382static struct sample_fetch_kw_list smp_fetch_keywords = {ILH, {
Willy Tarreau0f791d42013-07-23 19:56:43 +02003383 { "sc_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3384 { "sc_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3385 { "sc_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3386 { "sc_conn_cnt", smp_fetch_sc_conn_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3387 { "sc_conn_cur", smp_fetch_sc_conn_cur, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3388 { "sc_conn_rate", smp_fetch_sc_conn_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3389 { "sc_get_gpc0", smp_fetch_sc_get_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3390 { "sc_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3391 { "sc_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3392 { "sc_http_err_rate", smp_fetch_sc_http_err_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3393 { "sc_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3394 { "sc_http_req_rate", smp_fetch_sc_http_req_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3395 { "sc_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3396 { "sc_kbytes_in", smp_fetch_sc_kbytes_in, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3397 { "sc_kbytes_out", smp_fetch_sc_kbytes_out, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3398 { "sc_sess_cnt", smp_fetch_sc_sess_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3399 { "sc_sess_rate", smp_fetch_sc_sess_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3400 { "sc_tracked", smp_fetch_sc_tracked, ARG2(1,UINT,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3401 { "sc_trackers", smp_fetch_sc_trackers, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3402 { "sc0_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3403 { "sc0_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3404 { "sc0_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3405 { "sc0_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3406 { "sc0_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3407 { "sc0_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3408 { "sc0_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3409 { "sc0_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3410 { "sc0_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3411 { "sc0_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3412 { "sc0_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3413 { "sc0_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3414 { "sc0_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3415 { "sc0_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3416 { "sc0_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3417 { "sc0_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3418 { "sc0_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3419 { "sc0_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3420 { "sc0_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3421 { "sc1_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3422 { "sc1_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3423 { "sc1_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3424 { "sc1_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3425 { "sc1_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3426 { "sc1_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3427 { "sc1_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3428 { "sc1_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3429 { "sc1_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3430 { "sc1_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3431 { "sc1_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3432 { "sc1_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3433 { "sc1_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3434 { "sc1_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3435 { "sc1_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3436 { "sc1_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3437 { "sc1_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3438 { "sc1_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3439 { "sc1_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3440 { "sc2_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3441 { "sc2_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3442 { "sc2_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3443 { "sc2_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3444 { "sc2_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3445 { "sc2_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3446 { "sc2_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3447 { "sc2_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3448 { "sc2_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3449 { "sc2_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3450 { "sc2_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3451 { "sc2_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3452 { "sc2_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3453 { "sc2_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3454 { "sc2_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3455 { "sc2_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3456 { "sc2_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3457 { "sc2_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3458 { "sc2_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3459 { "src_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3460 { "src_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3461 { "src_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3462 { "src_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3463 { "src_conn_cur", smp_fetch_sc_conn_cur, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3464 { "src_conn_rate", smp_fetch_sc_conn_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3465 { "src_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3466 { "src_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3467 { "src_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3468 { "src_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3469 { "src_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3470 { "src_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3471 { "src_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3472 { "src_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3473 { "src_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3474 { "src_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3475 { "src_sess_rate", smp_fetch_sc_sess_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3476 { "src_updt_conn_cnt", smp_fetch_src_updt_conn_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3477 { "table_avl", smp_fetch_table_avl, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3478 { "table_cnt", smp_fetch_table_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
Willy Tarreau281c7992013-01-08 01:23:27 +01003479 { /* END */ },
3480}};
3481
Willy Tarreau8b22a712010-06-18 17:46:06 +02003482__attribute__((constructor))
3483static void __session_init(void)
3484{
Willy Tarreau281c7992013-01-08 01:23:27 +01003485 sample_register_fetches(&smp_fetch_keywords);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003486 acl_register_keywords(&acl_kws);
3487}
3488
Willy Tarreaubaaee002006-06-26 02:48:02 +02003489/*
3490 * Local variables:
3491 * c-indent-level: 8
3492 * c-basic-offset: 8
3493 * End:
3494 */