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Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
Willy Tarreau81f9aa32010-06-01 17:45:26 +02002 * Session management functions.
Willy Tarreaubaaee002006-06-26 02:48:02 +02003 *
Willy Tarreaud28c3532012-04-19 19:28:33 +02004 * Copyright 2000-2012 Willy Tarreau <w@1wt.eu>
Willy Tarreaubaaee002006-06-26 02:48:02 +02005 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 *
11 */
12
13#include <stdlib.h>
Willy Tarreau81f9aa32010-06-01 17:45:26 +020014#include <unistd.h>
15#include <fcntl.h>
Willy Tarreaue3ba5f02006-06-29 18:54:54 +020016
17#include <common/config.h>
Willy Tarreau9b28e032012-10-12 23:49:43 +020018#include <common/buffer.h>
Willy Tarreau7c669d72008-06-20 15:04:11 +020019#include <common/debug.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020020#include <common/memory.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020021
Willy Tarreaubaaee002006-06-26 02:48:02 +020022#include <types/capture.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010023#include <types/global.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020024
Willy Tarreau1d0dfb12009-07-07 15:10:31 +020025#include <proto/acl.h>
Willy Tarreau61612d42012-04-19 18:42:05 +020026#include <proto/arg.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010027#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020028#include <proto/channel.h>
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +010029#include <proto/checks.h>
Willy Tarreaud2274c62012-07-06 14:29:45 +020030#include <proto/connection.h>
Willy Tarreau5ca791d2009-08-16 19:06:42 +020031#include <proto/dumpstats.h>
Willy Tarreaudd2f85e2012-09-02 22:34:23 +020032#include <proto/fd.h>
Willy Tarreau91c43d72010-06-20 11:19:22 +020033#include <proto/freq_ctr.h>
Willy Tarreau3041b9f2010-10-15 23:25:20 +020034#include <proto/frontend.h>
Willy Tarreau8d5d7f22007-01-21 19:16:41 +010035#include <proto/hdr_idx.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +020036#include <proto/listener.h>
Willy Tarreau332f8bf2007-05-13 21:36:56 +020037#include <proto/log.h>
Willy Tarreaucbaaec42012-09-06 11:32:07 +020038#include <proto/raw_sock.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020039#include <proto/session.h>
Willy Tarreau3eba98a2009-01-25 13:56:13 +010040#include <proto/pipe.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010041#include <proto/proto_http.h>
42#include <proto/proto_tcp.h>
Willy Tarreau1d0dfb12009-07-07 15:10:31 +020043#include <proto/proxy.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020044#include <proto/queue.h>
Willy Tarreau7f062c42009-03-05 18:43:00 +010045#include <proto/server.h>
Willy Tarreaucd3b0942012-04-27 21:52:18 +020046#include <proto/sample.h>
Emeric Brun1d33b292010-01-04 15:47:17 +010047#include <proto/stick_table.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010048#include <proto/stream_interface.h>
Willy Tarreau55a8d0e2008-11-30 18:47:21 +010049#include <proto/task.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020050
Willy Tarreauc6ca1a02007-05-13 19:43:47 +020051struct pool_head *pool2_session;
Willy Tarreauf54f8bd2008-11-23 19:53:55 +010052struct list sessions;
Willy Tarreaubaaee002006-06-26 02:48:02 +020053
Willy Tarreau071e1372012-10-03 01:39:48 +020054static int conn_session_complete(struct connection *conn);
Willy Tarreau9683e9a2012-10-03 21:17:23 +020055static int conn_session_update(struct connection *conn);
Willy Tarreau2542b532012-08-31 16:01:23 +020056static struct task *expire_mini_session(struct task *t);
57int session_complete(struct session *s);
58
Willy Tarreau5e75e272012-10-02 21:21:20 +020059/* data layer callbacks for an embryonic session */
60struct data_cb sess_conn_cb = {
61 .recv = NULL,
62 .send = NULL,
Willy Tarreau9683e9a2012-10-03 21:17:23 +020063 .wake = conn_session_update,
Willy Tarreau071e1372012-10-03 01:39:48 +020064 .init = conn_session_complete,
Willy Tarreau5e75e272012-10-02 21:21:20 +020065};
66
Willy Tarreau2542b532012-08-31 16:01:23 +020067/* This function is called from the protocol layer accept() in order to
68 * instanciate a new embryonic session on behalf of a given listener and
69 * frontend. It returns a positive value upon success, 0 if the connection
70 * can be ignored, or a negative value upon critical failure. The accepted
71 * file descriptor is closed if we return <= 0.
Willy Tarreau81f9aa32010-06-01 17:45:26 +020072 */
73int session_accept(struct listener *l, int cfd, struct sockaddr_storage *addr)
74{
Willy Tarreaub363a1f2013-10-01 10:45:07 +020075 struct connection *cli_conn;
Willy Tarreau81f9aa32010-06-01 17:45:26 +020076 struct proxy *p = l->frontend;
77 struct session *s;
Willy Tarreau81f9aa32010-06-01 17:45:26 +020078 struct task *t;
Willy Tarreauabe8ea52010-11-11 10:56:04 +010079 int ret;
80
81
82 ret = -1; /* assume unrecoverable error by default */
Willy Tarreau81f9aa32010-06-01 17:45:26 +020083
Willy Tarreau32e3c6a2013-10-11 19:34:20 +020084 if (unlikely((cli_conn = conn_new()) == NULL))
Willy Tarreau81f9aa32010-06-01 17:45:26 +020085 goto out_close;
Willy Tarreau81f9aa32010-06-01 17:45:26 +020086
Willy Tarreau32e3c6a2013-10-11 19:34:20 +020087 conn_prepare(cli_conn, l->proto, l->xprt);
Willy Tarreauf2943dc2012-10-26 20:10:28 +020088
Willy Tarreau32e3c6a2013-10-11 19:34:20 +020089 cli_conn->t.sock.fd = cfd;
90 cli_conn->addr.from = *addr;
91 cli_conn->flags |= CO_FL_ADDR_FROM_SET;
92 cli_conn->target = &l->obj_type;
93
94 if (unlikely((s = pool_alloc2(pool2_session)) == NULL))
95 goto out_free_conn;
Willy Tarreauf2943dc2012-10-26 20:10:28 +020096
Willy Tarreau2542b532012-08-31 16:01:23 +020097 /* minimum session initialization required for an embryonic session is
98 * fairly low. We need very little to execute L4 ACLs, then we need a
99 * task to make the client-side connection live on its own.
100 * - flags
101 * - stick-entry tracking
102 */
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200103 s->flags = 0;
104 s->logs.logwait = p->to_log;
Willy Tarreau9a355ec2013-06-11 17:45:46 +0200105 s->logs.level = 0;
Willy Tarreaud5ca9ab2013-05-28 17:40:25 +0200106
107 memset(s->stkctr, 0, sizeof(s->stkctr));
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200108
Willy Tarreau2542b532012-08-31 16:01:23 +0200109 s->listener = l;
110 s->fe = p;
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100111
Willy Tarreauf8a49ea2013-10-14 21:32:07 +0200112 /* On a mini-session, the connection is directly attached to the
113 * session's target so that we don't need to initialize the stream
114 * interfaces. Another benefit is that it's easy to detect a mini-
115 * session in dumps using this : it's the only one which has a
116 * connection in s->target.
117 */
118 s->target = &cli_conn->obj_type;
119
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200120 s->logs.accept_date = date; /* user-visible date for logging */
121 s->logs.tv_accept = now; /* corrected date for internal use */
Willy Tarreau1f0da242014-01-25 11:01:50 +0100122 s->uniq_id = global.req_count++;
Willy Tarreau2542b532012-08-31 16:01:23 +0200123 p->feconn++;
124 /* This session was accepted, count it now */
125 if (p->feconn > p->fe_counters.conn_max)
126 p->fe_counters.conn_max = p->feconn;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200127
Willy Tarreau2542b532012-08-31 16:01:23 +0200128 proxy_inc_fe_conn_ctr(l, p);
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200129
Willy Tarreau59e3ff42013-12-16 02:16:50 +0100130 /* Add the minimum callbacks to prepare the connection's control layer.
131 * We need this so that we can safely execute the ACLs used by the
132 * "tcp-request connection" ruleset. We also carefully attach the
133 * connection to the stream interface without initializing the rest,
134 * so that ACLs can use si[0]->end.
135 */
136 si_attach_conn(&s->si[0], cli_conn);
137 conn_attach(cli_conn, s, &sess_conn_cb);
138 conn_ctrl_init(cli_conn);
139
Willy Tarreau2cff2f72013-12-16 10:12:54 +0100140 /* now evaluate the tcp-request layer4 rules. Since we expect to be able
141 * to abort right here as soon as possible, we check the rules before
142 * even initializing the stream interfaces.
143 */
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200144 if ((l->options & LI_O_TCP_RULES) && !tcp_exec_req_rules(s)) {
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200145 /* let's do a no-linger now to close with a single RST. */
146 setsockopt(cfd, SOL_SOCKET, SO_LINGER, (struct linger *) &nolinger, sizeof(struct linger));
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100147 ret = 0; /* successful termination */
Willy Tarreau2542b532012-08-31 16:01:23 +0200148 goto out_free_session;
149 }
150
Willy Tarreau82569f92012-09-27 23:48:56 +0200151 /* monitor-net and health mode are processed immediately after TCP
152 * connection rules. This way it's possible to block them, but they
153 * never use the lower data layers, they send directly over the socket,
154 * as they were designed for. We first flush the socket receive buffer
155 * in order to avoid emission of an RST by the system. We ignore any
156 * error.
157 */
158 if (unlikely((p->mode == PR_MODE_HEALTH) ||
159 ((l->options & LI_O_CHK_MONNET) &&
160 addr->ss_family == AF_INET &&
161 (((struct sockaddr_in *)addr)->sin_addr.s_addr & p->mon_mask.s_addr) == p->mon_net.s_addr))) {
162 /* we have 4 possibilities here :
163 * - HTTP mode, from monitoring address => send "HTTP/1.0 200 OK"
164 * - HEALTH mode with HTTP check => send "HTTP/1.0 200 OK"
165 * - HEALTH mode without HTTP check => just send "OK"
166 * - TCP mode from monitoring address => just close
167 */
Willy Tarreau2b57cb82013-06-10 19:56:38 +0200168 if (l->proto->drain)
169 l->proto->drain(cfd);
Willy Tarreau82569f92012-09-27 23:48:56 +0200170 if (p->mode == PR_MODE_HTTP ||
171 (p->mode == PR_MODE_HEALTH && (p->options2 & PR_O2_CHK_ANY) == PR_O2_HTTP_CHK))
172 send(cfd, "HTTP/1.0 200 OK\r\n\r\n", 19, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_MORE);
173 else if (p->mode == PR_MODE_HEALTH)
174 send(cfd, "OK\n", 3, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_MORE);
175 ret = 0;
176 goto out_free_session;
177 }
178
Willy Tarreau22cda212012-08-31 17:43:29 +0200179 /* wait for a PROXY protocol header */
180 if (l->options & LI_O_ACC_PROXY) {
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200181 cli_conn->flags |= CO_FL_ACCEPT_PROXY;
182 conn_sock_want_recv(cli_conn);
Willy Tarreau22cda212012-08-31 17:43:29 +0200183 }
184
Willy Tarreau2542b532012-08-31 16:01:23 +0200185 if (unlikely((t = task_new()) == NULL))
186 goto out_free_session;
187
188 t->context = s;
189 t->nice = l->nice;
190 s->task = t;
191
Willy Tarreau59e3ff42013-12-16 02:16:50 +0100192 /* Finish setting the callbacks. Right now the transport layer is present
Willy Tarreauf7bc57c2012-10-03 00:19:48 +0200193 * but not initialized. Also note we need to be careful as the stream
194 * int is not initialized yet.
Willy Tarreau2542b532012-08-31 16:01:23 +0200195 */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200196 conn_data_want_recv(cli_conn);
197 if (conn_xprt_init(cli_conn) < 0)
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100198 goto out_free_task;
Willy Tarreau2542b532012-08-31 16:01:23 +0200199
200 /* OK, now either we have a pending handshake to execute with and
201 * then we must return to the I/O layer, or we can proceed with the
202 * end of the session initialization. In case of handshake, we also
203 * set the I/O timeout to the frontend's client timeout.
204 */
205
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200206 if (cli_conn->flags & CO_FL_HANDSHAKE) {
Willy Tarreau2542b532012-08-31 16:01:23 +0200207 t->process = expire_mini_session;
208 t->expire = tick_add_ifset(now_ms, p->timeout.client);
209 task_queue(t);
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200210 cli_conn->flags |= CO_FL_INIT_DATA | CO_FL_WAKE_DATA;
Willy Tarreau2542b532012-08-31 16:01:23 +0200211 return 1;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200212 }
213
Willy Tarreau815f5ec2012-11-06 00:14:25 +0100214 /* OK let's complete session initialization since there is no handshake */
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200215 cli_conn->flags |= CO_FL_CONNECTED;
Willy Tarreau2542b532012-08-31 16:01:23 +0200216 ret = session_complete(s);
217 if (ret > 0)
218 return ret;
219
220 /* Error unrolling */
221 out_free_task:
222 task_free(t);
223 out_free_session:
224 p->feconn--;
Willy Tarreaue9101692014-01-28 22:48:24 +0100225 session_store_counters(s);
Willy Tarreau2542b532012-08-31 16:01:23 +0200226 pool_free2(pool2_session, s);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200227 out_free_conn:
228 cli_conn->flags &= ~CO_FL_XPRT_TRACKED;
229 conn_xprt_close(cli_conn);
230 conn_free(cli_conn);
Willy Tarreau2542b532012-08-31 16:01:23 +0200231 out_close:
Willy Tarreauf7bc57c2012-10-03 00:19:48 +0200232 if (ret < 0 && l->xprt == &raw_sock && p->mode == PR_MODE_HTTP) {
Willy Tarreau2542b532012-08-31 16:01:23 +0200233 /* critical error, no more memory, try to emit a 500 response */
Willy Tarreau05bf5e12013-10-20 23:10:28 +0200234 struct chunk *err_msg = &p->errmsg[HTTP_ERR_500];
235 if (!err_msg->str)
236 err_msg = &http_err_chunks[HTTP_ERR_500];
Willy Tarreau2542b532012-08-31 16:01:23 +0200237 send(cfd, err_msg->str, err_msg->len, MSG_DONTWAIT|MSG_NOSIGNAL);
238 }
239
240 if (fdtab[cfd].owner)
241 fd_delete(cfd);
242 else
243 close(cfd);
244 return ret;
245}
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100246
Willy Tarreau0af29122012-12-03 15:35:00 +0100247
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200248/* prepare the trash with a log prefix for session <s>. It only works with
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 */
582 s->target = &conn->obj_type;
Willy Tarreauabe8ea52010-11-11 10:56:04 +0100583 return ret;
Willy Tarreau81f9aa32010-06-01 17:45:26 +0200584}
585
Willy Tarreaubaaee002006-06-26 02:48:02 +0200586/*
587 * frees the context associated to a session. It must have been removed first.
588 */
Simon Hormandec5be42011-06-08 09:19:07 +0900589static void session_free(struct session *s)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200590{
Willy Tarreau4dbc4a22007-03-03 16:23:22 +0100591 struct http_txn *txn = &s->txn;
Willy Tarreau632f5a72007-07-11 10:42:35 +0200592 struct proxy *fe = s->fe;
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100593 struct bref *bref, *back;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200594 struct connection *cli_conn = objt_conn(s->si[0].end);
Willy Tarreaua4cda672010-06-06 18:28:49 +0200595 int i;
Willy Tarreau0f7562b2007-01-07 15:46:13 +0100596
Willy Tarreaubaaee002006-06-26 02:48:02 +0200597 if (s->pend_pos)
598 pendconn_free(s->pend_pos);
Willy Tarreau922a8062008-12-04 09:33:58 +0100599
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100600 if (objt_server(s->target)) { /* there may be requests left pending in queue */
Willy Tarreau1e62de62008-11-11 20:20:02 +0100601 if (s->flags & SN_CURR_SESS) {
602 s->flags &= ~SN_CURR_SESS;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100603 objt_server(s->target)->cur_sess--;
Willy Tarreau1e62de62008-11-11 20:20:02 +0100604 }
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100605 if (may_dequeue_tasks(objt_server(s->target), s->be))
606 process_srv_queue(objt_server(s->target));
Willy Tarreau1e62de62008-11-11 20:20:02 +0100607 }
Willy Tarreau922a8062008-12-04 09:33:58 +0100608
Willy Tarreau7c669d72008-06-20 15:04:11 +0200609 if (unlikely(s->srv_conn)) {
610 /* the session still has a reserved slot on a server, but
611 * it should normally be only the same as the one above,
612 * so this should not happen in fact.
613 */
614 sess_change_server(s, NULL);
615 }
616
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100617 if (s->req->pipe)
618 put_pipe(s->req->pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100619
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100620 if (s->rep->pipe)
621 put_pipe(s->rep->pipe);
Willy Tarreau259de1b2009-01-18 21:56:21 +0100622
Willy Tarreau9b28e032012-10-12 23:49:43 +0200623 pool_free2(pool2_buffer, s->req->buf);
624 pool_free2(pool2_buffer, s->rep->buf);
625
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200626 pool_free2(pool2_channel, s->req);
627 pool_free2(pool2_channel, s->rep);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200628
Willy Tarreau46023632010-01-07 22:51:47 +0100629 http_end_txn(s);
630
Willy Tarreau1e954912012-10-12 17:50:05 +0200631 /* ensure the client-side transport layer is destroyed */
Willy Tarreauf79c8172013-10-21 16:30:56 +0200632 if (cli_conn)
633 conn_force_close(cli_conn);
Willy Tarreau1e954912012-10-12 17:50:05 +0200634
Willy Tarreaua4cda672010-06-06 18:28:49 +0200635 for (i = 0; i < s->store_count; i++) {
636 if (!s->store[i].ts)
637 continue;
638 stksess_free(s->store[i].table, s->store[i].ts);
639 s->store[i].ts = NULL;
640 }
641
Willy Tarreau34eb6712011-10-24 18:15:04 +0200642 pool_free2(pool2_hdr_idx, txn->hdr_idx.v);
Willy Tarreau92fb9832007-10-16 17:34:28 +0200643 if (fe) {
Willy Tarreau46023632010-01-07 22:51:47 +0100644 pool_free2(fe->rsp_cap_pool, txn->rsp.cap);
645 pool_free2(fe->req_cap_pool, txn->req.cap);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200646 }
Willy Tarreau0937bc42009-12-22 15:03:09 +0100647
Willy Tarreau7af7d592013-07-01 18:07:03 +0200648 session_store_counters(s);
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +0200649
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100650 list_for_each_entry_safe(bref, back, &s->back_refs, users) {
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100651 /* we have to unlink all watchers. We must not relink them if
652 * this session was the last one in the list.
653 */
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100654 LIST_DEL(&bref->users);
Willy Tarreaufd3828e2009-02-22 15:17:24 +0100655 LIST_INIT(&bref->users);
656 if (s->list.n != &sessions)
657 LIST_ADDQ(&LIST_ELEM(s->list.n, struct session *, list)->back_refs, &bref->users);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100658 bref->ref = s->list.n;
659 }
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100660 LIST_DEL(&s->list);
Willy Tarreau32e3c6a2013-10-11 19:34:20 +0200661 si_release_endpoint(&s->si[1]);
662 si_release_endpoint(&s->si[0]);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200663 pool_free2(pool2_session, s);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200664
665 /* We may want to free the maximum amount of pools if the proxy is stopping */
Willy Tarreau92fb9832007-10-16 17:34:28 +0200666 if (fe && unlikely(fe->state == PR_STSTOPPED)) {
Willy Tarreau9b28e032012-10-12 23:49:43 +0200667 pool_flush2(pool2_buffer);
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200668 pool_flush2(pool2_channel);
Willy Tarreau34eb6712011-10-24 18:15:04 +0200669 pool_flush2(pool2_hdr_idx);
Willy Tarreau48d63db2008-08-03 17:41:33 +0200670 pool_flush2(pool2_requri);
671 pool_flush2(pool2_capture);
672 pool_flush2(pool2_session);
673 pool_flush2(fe->req_cap_pool);
674 pool_flush2(fe->rsp_cap_pool);
Willy Tarreau632f5a72007-07-11 10:42:35 +0200675 }
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200676}
677
678
679/* perform minimal intializations, report 0 in case of error, 1 if OK. */
680int init_session()
681{
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100682 LIST_INIT(&sessions);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200683 pool2_session = create_pool("session", sizeof(struct session), MEM_F_SHARED);
684 return pool2_session != NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200685}
686
Willy Tarreau30e71012007-11-26 20:15:35 +0100687void session_process_counters(struct session *s)
688{
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100689 unsigned long long bytes;
Willy Tarreau20d46a52012-12-09 15:55:40 +0100690 void *ptr;
691 int i;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100692
Willy Tarreau30e71012007-11-26 20:15:35 +0100693 if (s->req) {
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100694 bytes = s->req->total - s->logs.bytes_in;
Willy Tarreau30e71012007-11-26 20:15:35 +0100695 s->logs.bytes_in = s->req->total;
696 if (bytes) {
Willy Tarreau20d46a52012-12-09 15:55:40 +0100697 s->fe->fe_counters.bytes_in += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100698
Willy Tarreau20d46a52012-12-09 15:55:40 +0100699 s->be->be_counters.bytes_in += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100700
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100701 if (objt_server(s->target))
Willy Tarreau20d46a52012-12-09 15:55:40 +0100702 objt_server(s->target)->counters.bytes_in += bytes;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200703
Thierry FOURNIERa47a94f2014-03-20 15:42:53 +0100704 if (s->listener && s->listener->counters)
Willy Tarreau20d46a52012-12-09 15:55:40 +0100705 s->listener->counters->bytes_in += bytes;
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200706
Willy Tarreaub4c84932013-07-23 19:15:30 +0200707 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100708 if (!stkctr_entry(&s->stkctr[i]))
Willy Tarreau20d46a52012-12-09 15:55:40 +0100709 continue;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200710
Willy Tarreau20d46a52012-12-09 15:55:40 +0100711 ptr = stktable_data_ptr(s->stkctr[i].table,
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100712 stkctr_entry(&s->stkctr[i]),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100713 STKTABLE_DT_BYTES_IN_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200714 if (ptr)
715 stktable_data_cast(ptr, bytes_in_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200716
Willy Tarreau20d46a52012-12-09 15:55:40 +0100717 ptr = stktable_data_ptr(s->stkctr[i].table,
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100718 stkctr_entry(&s->stkctr[i]),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100719 STKTABLE_DT_BYTES_IN_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200720 if (ptr)
721 update_freq_ctr_period(&stktable_data_cast(ptr, bytes_in_rate),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100722 s->stkctr[i].table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200723 }
Willy Tarreau30e71012007-11-26 20:15:35 +0100724 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100725 }
726
Willy Tarreau30e71012007-11-26 20:15:35 +0100727 if (s->rep) {
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100728 bytes = s->rep->total - s->logs.bytes_out;
Willy Tarreau30e71012007-11-26 20:15:35 +0100729 s->logs.bytes_out = s->rep->total;
730 if (bytes) {
Willy Tarreau20d46a52012-12-09 15:55:40 +0100731 s->fe->fe_counters.bytes_out += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100732
Willy Tarreau20d46a52012-12-09 15:55:40 +0100733 s->be->be_counters.bytes_out += bytes;
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100734
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100735 if (objt_server(s->target))
Willy Tarreau20d46a52012-12-09 15:55:40 +0100736 objt_server(s->target)->counters.bytes_out += bytes;
Krzysztof Piotr Oledzkiaeebf9b2009-10-04 15:43:17 +0200737
Thierry FOURNIERa47a94f2014-03-20 15:42:53 +0100738 if (s->listener && s->listener->counters)
Willy Tarreau20d46a52012-12-09 15:55:40 +0100739 s->listener->counters->bytes_out += bytes;
Willy Tarreauf059a0f2010-08-03 16:29:52 +0200740
Willy Tarreaub4c84932013-07-23 19:15:30 +0200741 for (i = 0; i < MAX_SESS_STKCTR; i++) {
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100742 if (!stkctr_entry(&s->stkctr[i]))
Willy Tarreau20d46a52012-12-09 15:55:40 +0100743 continue;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200744
Willy Tarreau20d46a52012-12-09 15:55:40 +0100745 ptr = stktable_data_ptr(s->stkctr[i].table,
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100746 stkctr_entry(&s->stkctr[i]),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100747 STKTABLE_DT_BYTES_OUT_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200748 if (ptr)
749 stktable_data_cast(ptr, bytes_out_cnt) += bytes;
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200750
Willy Tarreau20d46a52012-12-09 15:55:40 +0100751 ptr = stktable_data_ptr(s->stkctr[i].table,
Willy Tarreaucc08d2c2014-01-28 23:18:23 +0100752 stkctr_entry(&s->stkctr[i]),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100753 STKTABLE_DT_BYTES_OUT_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +0200754 if (ptr)
755 update_freq_ctr_period(&stktable_data_cast(ptr, bytes_out_rate),
Willy Tarreau20d46a52012-12-09 15:55:40 +0100756 s->stkctr[i].table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u, bytes);
Willy Tarreau855e4bb2010-06-18 18:33:32 +0200757 }
Willy Tarreau30e71012007-11-26 20:15:35 +0100758 }
Krzysztof Piotr Oledzki583bc962007-11-24 22:12:47 +0100759 }
760}
Willy Tarreaubaaee002006-06-26 02:48:02 +0200761
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100762/* This function is called with (si->state == SI_ST_CON) meaning that a
763 * connection was attempted and that the file descriptor is already allocated.
764 * We must check for establishment, error and abort. Possible output states
765 * are SI_ST_EST (established), SI_ST_CER (error), SI_ST_DIS (abort), and
766 * SI_ST_CON (no change). The function returns 0 if it switches to SI_ST_CER,
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200767 * otherwise 1. This only works with connection-based sessions.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100768 */
Simon Hormandec5be42011-06-08 09:19:07 +0900769static int sess_update_st_con_tcp(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100770{
Willy Tarreau7421efb2012-07-02 15:11:27 +0200771 struct channel *req = si->ob;
772 struct channel *rep = si->ib;
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200773 struct connection *srv_conn = __objt_conn(si->end);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100774
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100775 /* If we got an error, or if nothing happened and the connection timed
776 * out, we must give up. The CER state handler will take care of retry
777 * attempts and error reports.
778 */
779 if (unlikely(si->flags & (SI_FL_EXP|SI_FL_ERR))) {
Willy Tarreaue3224e82012-10-29 22:41:31 +0100780 if (unlikely(si->ob->flags & CF_WRITE_PARTIAL)) {
781 /* Some data were sent past the connection establishment,
782 * so we need to pretend we're established to log correctly
783 * and let later states handle the failure.
784 */
Willy Tarreaue3224e82012-10-29 22:41:31 +0100785 si->state = SI_ST_EST;
786 si->err_type = SI_ET_DATA_ERR;
787 si->ib->flags |= CF_READ_ERROR | CF_WRITE_ERROR;
Willy Tarreaue3224e82012-10-29 22:41:31 +0100788 return 1;
789 }
Willy Tarreau127334e2009-03-28 10:47:26 +0100790 si->exp = TICK_ETERNITY;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100791 si->state = SI_ST_CER;
Willy Tarreau0ede5a32012-12-08 08:44:02 +0100792
Willy Tarreauf79c8172013-10-21 16:30:56 +0200793 conn_force_close(srv_conn);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100794
795 if (si->err_type)
796 return 0;
797
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100798 if (si->flags & SI_FL_ERR)
799 si->err_type = SI_ET_CONN_ERR;
800 else
801 si->err_type = SI_ET_CONN_TO;
802 return 0;
803 }
804
805 /* OK, maybe we want to abort */
Willy Tarreaua7a7ebc2012-12-30 00:50:35 +0100806 if (!(req->flags & CF_WRITE_PARTIAL) &&
807 unlikely((rep->flags & CF_SHUTW) ||
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200808 ((req->flags & CF_SHUTW_NOW) && /* FIXME: this should not prevent a connection from establishing */
809 ((!(req->flags & CF_WRITE_ACTIVITY) && channel_is_empty(req)) ||
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100810 s->be->options & PR_O_ABRT_CLOSE)))) {
811 /* give up */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200812 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100813 si->err_type |= SI_ET_CONN_ABRT;
Willy Tarreau84455332009-03-15 22:34:05 +0100814 if (s->srv_error)
815 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100816 return 1;
817 }
818
819 /* we need to wait a bit more if there was no activity either */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200820 if (!(req->flags & CF_WRITE_ACTIVITY))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100821 return 1;
822
823 /* OK, this means that a connection succeeded. The caller will be
824 * responsible for handling the transition from CON to EST.
825 */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100826 si->state = SI_ST_EST;
827 si->err_type = SI_ET_NONE;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100828 return 1;
829}
830
831/* This function is called with (si->state == SI_ST_CER) meaning that a
832 * previous connection attempt has failed and that the file descriptor
833 * has already been released. Possible causes include asynchronous error
834 * notification and time out. Possible output states are SI_ST_CLO when
835 * retries are exhausted, SI_ST_TAR when a delay is wanted before a new
836 * connection attempt, SI_ST_ASS when it's wise to retry on the same server,
837 * and SI_ST_REQ when an immediate redispatch is wanted. The buffers are
838 * marked as in error state. It returns 0.
839 */
Simon Hormandec5be42011-06-08 09:19:07 +0900840static int sess_update_st_cer(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100841{
842 /* we probably have to release last session from the server */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100843 if (objt_server(s->target)) {
844 health_adjust(objt_server(s->target), HANA_STATUS_L4_ERR);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100845
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100846 if (s->flags & SN_CURR_SESS) {
847 s->flags &= ~SN_CURR_SESS;
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100848 objt_server(s->target)->cur_sess--;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100849 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100850 }
851
852 /* ensure that we have enough retries left */
Willy Tarreauee28de02010-06-01 09:51:00 +0200853 si->conn_retries--;
854 if (si->conn_retries < 0) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100855 if (!si->err_type) {
856 si->err_type = SI_ET_CONN_ERR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100857 }
858
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100859 if (objt_server(s->target))
860 objt_server(s->target)->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100861 s->be->be_counters.failed_conns++;
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100862 sess_change_server(s, NULL);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100863 if (may_dequeue_tasks(objt_server(s->target), s->be))
864 process_srv_queue(objt_server(s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100865
866 /* shutw is enough so stop a connecting socket */
Willy Tarreau73b013b2012-05-21 16:31:45 +0200867 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200868 si->ob->flags |= CF_WRITE_ERROR;
869 si->ib->flags |= CF_READ_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100870
871 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100872 if (s->srv_error)
873 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100874 return 0;
875 }
876
877 /* If the "redispatch" option is set on the backend, we are allowed to
878 * retry on another server for the last retry. In order to achieve this,
879 * we must mark the session unassigned, and eventually clear the DIRECT
880 * bit to ignore any persistence cookie. We won't count a retry nor a
881 * redispatch yet, because this will depend on what server is selected.
882 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100883 if (objt_server(s->target) && si->conn_retries == 0 &&
Willy Tarreau4de91492010-01-22 19:10:05 +0100884 s->be->options & PR_O_REDISP && !(s->flags & SN_FORCE_PRST)) {
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100885 sess_change_server(s, NULL);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100886 if (may_dequeue_tasks(objt_server(s->target), s->be))
887 process_srv_queue(objt_server(s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100888
889 s->flags &= ~(SN_DIRECT | SN_ASSIGNED | SN_ADDR_SET);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100890 si->state = SI_ST_REQ;
891 } else {
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100892 if (objt_server(s->target))
893 objt_server(s->target)->counters.retries++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100894 s->be->be_counters.retries++;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100895 si->state = SI_ST_ASS;
896 }
897
898 if (si->flags & SI_FL_ERR) {
899 /* The error was an asynchronous connection error, and we will
900 * likely have to retry connecting to the same server, most
901 * likely leading to the same result. To avoid this, we wait
Willy Tarreaub0290662014-06-13 17:04:44 +0200902 * MIN(one second, connect timeout) before retrying.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100903 */
904
Willy Tarreaub0290662014-06-13 17:04:44 +0200905 int delay = 1000;
906
907 if (s->be->timeout.connect && s->be->timeout.connect < delay)
908 delay = s->be->timeout.connect;
909
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100910 if (!si->err_type)
911 si->err_type = SI_ET_CONN_ERR;
912
Willy Tarreaudb6d0122014-06-13 17:40:15 +0200913 /* only wait when we're retrying on the same server */
914 if (si->state == SI_ST_ASS ||
915 (s->be->lbprm.algo & BE_LB_KIND) != BE_LB_KIND_RR ||
916 (s->be->srv_act <= 1)) {
917 si->state = SI_ST_TAR;
918 si->exp = tick_add(now_ms, MS_TO_TICKS(delay));
919 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100920 return 0;
921 }
922 return 0;
923}
924
925/*
926 * This function handles the transition between the SI_ST_CON state and the
Willy Tarreau85e7d002010-05-31 11:57:51 +0200927 * SI_ST_EST state. It must only be called after switching from SI_ST_CON (or
Willy Tarreau26d8c592012-05-07 18:12:14 +0200928 * SI_ST_INI) to SI_ST_EST, but only when a ->proto is defined.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100929 */
Simon Hormandec5be42011-06-08 09:19:07 +0900930static void sess_establish(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100931{
Willy Tarreau7421efb2012-07-02 15:11:27 +0200932 struct channel *req = si->ob;
933 struct channel *rep = si->ib;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100934
Willy Tarreau0e37f1c2013-12-31 23:06:46 +0100935 /* First, centralize the timers information */
936 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
937 si->exp = TICK_ETERNITY;
938
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100939 if (objt_server(s->target))
940 health_adjust(objt_server(s->target), HANA_STATUS_L4_OK);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100941
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100942 if (s->be->mode == PR_MODE_TCP) { /* let's allow immediate data connection in this case */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100943 /* if the user wants to log as soon as possible, without counting
944 * bytes from the server, then this is the right moment. */
Willy Tarreaud79a3b22012-12-28 09:40:16 +0100945 if (!LIST_ISEMPTY(&s->fe->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100946 s->logs.t_close = s->logs.t_connect; /* to get a valid end date */
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100947 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100948 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100949 }
950 else {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100951 s->txn.rsp.msg_state = HTTP_MSG_RPBEFORE;
Willy Tarreaud81ca042013-12-31 22:33:13 +0100952 rep->flags |= CF_READ_DONTWAIT; /* a single read is enough to get response headers */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100953 }
954
Willy Tarreau4e5b8282009-08-16 22:57:50 +0200955 rep->analysers |= s->fe->fe_rsp_ana | s->be->be_rsp_ana;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200956 rep->flags |= CF_READ_ATTACHED; /* producer is now attached */
Willy Tarreau644c1012014-04-30 18:11:11 +0200957 if (req->flags & CF_WAKE_CONNECT) {
958 req->flags |= CF_WAKE_ONCE;
959 req->flags &= ~CF_WAKE_CONNECT;
960 }
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200961 if (objt_conn(si->end)) {
Willy Tarreaud04e8582010-05-31 12:31:35 +0200962 /* real connections have timeouts */
963 req->wto = s->be->timeout.server;
964 rep->rto = s->be->timeout.server;
965 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100966 req->wex = TICK_ETERNITY;
967}
968
969/* Update stream interface status for input states SI_ST_ASS, SI_ST_QUE, SI_ST_TAR.
970 * Other input states are simply ignored.
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +0100971 * Possible output states are SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ, SI_ST_CON
972 * and SI_ST_EST. Flags must have previously been updated for timeouts and other
973 * conditions.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100974 */
Simon Hormandec5be42011-06-08 09:19:07 +0900975static void sess_update_stream_int(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100976{
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100977 struct server *srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +0100978
Willy Tarreau02d6cfc2012-03-01 18:19:58 +0100979 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 +0100980 now_ms, __FUNCTION__,
981 s,
982 s->req, s->rep,
983 s->req->rex, s->rep->wex,
984 s->req->flags, s->rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200985 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 +0100986
987 if (si->state == SI_ST_ASS) {
988 /* Server assigned to connection request, we have to try to connect now */
989 int conn_err;
990
991 conn_err = connect_server(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100992 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +0100993
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100994 if (conn_err == SN_ERR_NONE) {
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +0100995 /* state = SI_ST_CON or SI_ST_EST now */
Willy Tarreau827aee92011-03-10 16:55:02 +0100996 if (srv)
997 srv_inc_sess_ctr(srv);
Bhaskar Maddalaa20cb852014-02-03 16:26:46 -0500998 if (srv)
999 srv_set_sess_last(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001000 return;
1001 }
1002
1003 /* We have received a synchronous error. We might have to
1004 * abort, retry immediately or redispatch.
1005 */
1006 if (conn_err == SN_ERR_INTERNAL) {
1007 if (!si->err_type) {
1008 si->err_type = SI_ET_CONN_OTHER;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001009 }
1010
Willy Tarreau827aee92011-03-10 16:55:02 +01001011 if (srv)
1012 srv_inc_sess_ctr(srv);
1013 if (srv)
Bhaskar Maddalaa20cb852014-02-03 16:26:46 -05001014 srv_set_sess_last(srv);
1015 if (srv)
Willy Tarreau827aee92011-03-10 16:55:02 +01001016 srv->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001017 s->be->be_counters.failed_conns++;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001018
1019 /* release other sessions waiting for this server */
Willy Tarreaub89cfca2010-12-29 14:32:28 +01001020 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001021 if (may_dequeue_tasks(srv, s->be))
1022 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001023
1024 /* Failed and not retryable. */
Willy Tarreau73b013b2012-05-21 16:31:45 +02001025 si_shutr(si);
1026 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001027 si->ob->flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001028
1029 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1030
1031 /* no session was ever accounted for this server */
1032 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001033 if (s->srv_error)
1034 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001035 return;
1036 }
1037
1038 /* We are facing a retryable error, but we don't want to run a
1039 * turn-around now, as the problem is likely a source port
1040 * allocation problem, so we want to retry now.
1041 */
1042 si->state = SI_ST_CER;
1043 si->flags &= ~SI_FL_ERR;
1044 sess_update_st_cer(s, si);
1045 /* now si->state is one of SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ */
1046 return;
1047 }
1048 else if (si->state == SI_ST_QUE) {
1049 /* connection request was queued, check for any update */
1050 if (!s->pend_pos) {
1051 /* The connection is not in the queue anymore. Either
1052 * we have a server connection slot available and we
1053 * go directly to the assigned state, or we need to
1054 * load-balance first and go to the INI state.
1055 */
1056 si->exp = TICK_ETERNITY;
1057 if (unlikely(!(s->flags & SN_ASSIGNED)))
1058 si->state = SI_ST_REQ;
1059 else {
1060 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1061 si->state = SI_ST_ASS;
1062 }
1063 return;
1064 }
1065
1066 /* Connection request still in queue... */
1067 if (si->flags & SI_FL_EXP) {
1068 /* ... and timeout expired */
1069 si->exp = TICK_ETERNITY;
1070 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau827aee92011-03-10 16:55:02 +01001071 if (srv)
1072 srv->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001073 s->be->be_counters.failed_conns++;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001074 si_shutr(si);
1075 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001076 si->ob->flags |= CF_WRITE_TIMEOUT;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001077 if (!si->err_type)
1078 si->err_type = SI_ET_QUEUE_TO;
1079 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001080 if (s->srv_error)
1081 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001082 return;
1083 }
1084
1085 /* Connection remains in queue, check if we have to abort it */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001086 if ((si->ob->flags & (CF_READ_ERROR)) ||
1087 ((si->ob->flags & CF_SHUTW_NOW) && /* empty and client aborted */
Willy Tarreau8e21bb92012-08-24 22:40:29 +02001088 (channel_is_empty(si->ob) || s->be->options & PR_O_ABRT_CLOSE))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001089 /* give up */
1090 si->exp = TICK_ETERNITY;
1091 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau73b013b2012-05-21 16:31:45 +02001092 si_shutr(si);
1093 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001094 si->err_type |= SI_ET_QUEUE_ABRT;
1095 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001096 if (s->srv_error)
1097 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001098 return;
1099 }
1100
1101 /* Nothing changed */
1102 return;
1103 }
1104 else if (si->state == SI_ST_TAR) {
1105 /* Connection request might be aborted */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001106 if ((si->ob->flags & (CF_READ_ERROR)) ||
1107 ((si->ob->flags & CF_SHUTW_NOW) && /* empty and client aborted */
Willy Tarreau8e21bb92012-08-24 22:40:29 +02001108 (channel_is_empty(si->ob) || s->be->options & PR_O_ABRT_CLOSE))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001109 /* give up */
1110 si->exp = TICK_ETERNITY;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001111 si_shutr(si);
1112 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001113 si->err_type |= SI_ET_CONN_ABRT;
1114 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001115 if (s->srv_error)
1116 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001117 return;
1118 }
1119
1120 if (!(si->flags & SI_FL_EXP))
1121 return; /* still in turn-around */
1122
1123 si->exp = TICK_ETERNITY;
1124
1125 /* we keep trying on the same server as long as the session is
1126 * marked "assigned".
1127 * FIXME: Should we force a redispatch attempt when the server is down ?
1128 */
1129 if (s->flags & SN_ASSIGNED)
1130 si->state = SI_ST_ASS;
1131 else
1132 si->state = SI_ST_REQ;
1133 return;
1134 }
1135}
1136
Simon Hormandec5be42011-06-08 09:19:07 +09001137/* Set correct session termination flags in case no analyser has done it. It
1138 * also counts a failed request if the server state has not reached the request
1139 * stage.
1140 */
1141static void sess_set_term_flags(struct session *s)
1142{
1143 if (!(s->flags & SN_FINST_MASK)) {
1144 if (s->si[1].state < SI_ST_REQ) {
1145
1146 s->fe->fe_counters.failed_req++;
1147 if (s->listener->counters)
1148 s->listener->counters->failed_req++;
1149
1150 s->flags |= SN_FINST_R;
1151 }
1152 else if (s->si[1].state == SI_ST_QUE)
1153 s->flags |= SN_FINST_Q;
1154 else if (s->si[1].state < SI_ST_EST)
1155 s->flags |= SN_FINST_C;
1156 else if (s->si[1].state == SI_ST_EST || s->si[1].prev_state == SI_ST_EST)
1157 s->flags |= SN_FINST_D;
1158 else
1159 s->flags |= SN_FINST_L;
1160 }
1161}
1162
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001163/* This function initiates a server connection request on a stream interface
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001164 * already in SI_ST_REQ state. Upon success, the state goes to SI_ST_ASS for
1165 * a real connection to a server, indicating that a server has been assigned,
1166 * or SI_ST_EST for a successful connection to an applet. It may also return
1167 * SI_ST_QUE, or SI_ST_CLO upon error.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001168 */
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001169static void sess_prepare_conn_req(struct session *s, struct stream_interface *si)
1170{
1171 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 +01001172 now_ms, __FUNCTION__,
1173 s,
1174 s->req, s->rep,
1175 s->req->rex, s->rep->wex,
1176 s->req->flags, s->rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001177 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 +01001178
1179 if (si->state != SI_ST_REQ)
1180 return;
1181
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001182 if (unlikely(obj_type(s->target) == OBJ_TYPE_APPLET)) {
1183 /* the applet directly goes to the EST state */
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001184 struct appctx *appctx = objt_appctx(si->end);
1185
1186 if (!appctx || appctx->applet != __objt_applet(s->target))
1187 appctx = stream_int_register_handler(si, objt_applet(s->target));
1188
1189 if (!appctx) {
1190 /* No more memory, let's immediately abort. Force the
1191 * error code to ignore the ERR_LOCAL which is not a
1192 * real error.
1193 */
Willy Tarreau6bbb2f62013-12-09 17:14:23 +01001194 s->flags &= ~(SN_ERR_MASK | SN_FINST_MASK);
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001195
1196 si_shutr(si);
1197 si_shutw(si);
1198 si->ob->flags |= CF_WRITE_ERROR;
Willy Tarreau6bbb2f62013-12-09 17:14:23 +01001199 si->err_type = SI_ET_CONN_RES;
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001200 si->state = SI_ST_CLO;
1201 if (s->srv_error)
1202 s->srv_error(s, si);
1203 return;
1204 }
1205
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001206 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001207 si->state = SI_ST_EST;
1208 si->err_type = SI_ET_NONE;
Willy Tarreaub9a551e2014-04-23 00:35:17 +02001209 be_set_sess_last(s->be);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01001210 /* let sess_establish() finish the job */
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001211 return;
1212 }
1213
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001214 /* Try to assign a server */
1215 if (srv_redispatch_connect(s) != 0) {
1216 /* We did not get a server. Either we queued the
1217 * connection request, or we encountered an error.
1218 */
1219 if (si->state == SI_ST_QUE)
1220 return;
1221
1222 /* we did not get any server, let's check the cause */
Willy Tarreau73b013b2012-05-21 16:31:45 +02001223 si_shutr(si);
1224 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001225 si->ob->flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001226 if (!si->err_type)
1227 si->err_type = SI_ET_CONN_OTHER;
1228 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001229 if (s->srv_error)
1230 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001231 return;
1232 }
1233
1234 /* The server is assigned */
1235 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1236 si->state = SI_ST_ASS;
Willy Tarreaub9a551e2014-04-23 00:35:17 +02001237 be_set_sess_last(s->be);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001238}
1239
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001240/* This stream analyser checks the switching rules and changes the backend
Willy Tarreau4de91492010-01-22 19:10:05 +01001241 * if appropriate. The default_backend rule is also considered, then the
1242 * target backend's forced persistence rules are also evaluated last if any.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001243 * It returns 1 if the processing can continue on next analysers, or zero if it
1244 * either needs more data or wants to immediately abort the request.
1245 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001246static int process_switching_rules(struct session *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001247{
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001248 struct persist_rule *prst_rule;
Willy Tarreau4de91492010-01-22 19:10:05 +01001249
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001250 req->analysers &= ~an_bit;
1251 req->analyse_exp = TICK_ETERNITY;
1252
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001253 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 +02001254 now_ms, __FUNCTION__,
1255 s,
1256 req,
1257 req->rex, req->wex,
1258 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001259 req->buf->i,
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001260 req->analysers);
1261
1262 /* now check whether we have some switching rules for this request */
1263 if (!(s->flags & SN_BE_ASSIGNED)) {
1264 struct switching_rule *rule;
1265
1266 list_for_each_entry(rule, &s->fe->switching_rules, list) {
Willy Tarreauf51658d2014-04-23 01:21:56 +02001267 int ret = 1;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001268
Willy Tarreauf51658d2014-04-23 01:21:56 +02001269 if (rule->cond) {
1270 ret = acl_exec_cond(rule->cond, s->fe, s, &s->txn, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
1271 ret = acl_pass(ret);
1272 if (rule->cond->pol == ACL_COND_UNLESS)
1273 ret = !ret;
1274 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001275
1276 if (ret) {
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001277 /* If the backend name is dynamic, try to resolve the name.
1278 * If we can't resolve the name, or if any error occurs, break
1279 * the loop and fallback to the default backend.
1280 */
1281 struct proxy *backend;
1282
1283 if (rule->dynamic) {
1284 struct chunk *tmp = get_trash_chunk();
1285 if (!build_logline(s, tmp->str, tmp->size, &rule->be.expr))
1286 break;
1287 backend = findproxy(tmp->str, PR_CAP_BE);
1288 if (!backend)
1289 break;
1290 }
1291 else
1292 backend = rule->be.backend;
1293
1294 if (!session_set_backend(s, backend))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001295 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001296 break;
1297 }
1298 }
1299
1300 /* To ensure correct connection accounting on the backend, we
1301 * have to assign one if it was not set (eg: a listen). This
1302 * measure also takes care of correctly setting the default
1303 * backend if any.
1304 */
1305 if (!(s->flags & SN_BE_ASSIGNED))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001306 if (!session_set_backend(s, s->fe->defbe.be ? s->fe->defbe.be : s->be))
1307 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001308 }
1309
Willy Tarreaufb356202010-08-03 14:02:05 +02001310 /* we don't want to run the TCP or HTTP filters again if the backend has not changed */
1311 if (s->fe == s->be) {
1312 s->req->analysers &= ~AN_REQ_INSPECT_BE;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001313 s->req->analysers &= ~AN_REQ_HTTP_PROCESS_BE;
Willy Tarreaufb356202010-08-03 14:02:05 +02001314 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001315
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001316 /* 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 +01001317 * persistence rule, and report that in the session.
1318 */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001319 list_for_each_entry(prst_rule, &s->be->persist_rules, list) {
Willy Tarreau4de91492010-01-22 19:10:05 +01001320 int ret = 1;
1321
1322 if (prst_rule->cond) {
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001323 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 +01001324 ret = acl_pass(ret);
1325 if (prst_rule->cond->pol == ACL_COND_UNLESS)
1326 ret = !ret;
1327 }
1328
1329 if (ret) {
1330 /* no rule, or the rule matches */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001331 if (prst_rule->type == PERSIST_TYPE_FORCE) {
1332 s->flags |= SN_FORCE_PRST;
1333 } else {
1334 s->flags |= SN_IGNORE_PRST;
1335 }
Willy Tarreau4de91492010-01-22 19:10:05 +01001336 break;
1337 }
1338 }
1339
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001340 return 1;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001341
1342 sw_failed:
1343 /* immediately abort this request in case of allocation failure */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001344 channel_abort(s->req);
1345 channel_abort(s->rep);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001346
1347 if (!(s->flags & SN_ERR_MASK))
1348 s->flags |= SN_ERR_RESOURCE;
1349 if (!(s->flags & SN_FINST_MASK))
1350 s->flags |= SN_FINST_R;
1351
1352 s->txn.status = 500;
1353 s->req->analysers = 0;
1354 s->req->analyse_exp = TICK_ETERNITY;
1355 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001356}
1357
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001358/* This stream analyser works on a request. It applies all use-server rules on
1359 * it then returns 1. The data must already be present in the buffer otherwise
1360 * they won't match. It always returns 1.
1361 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001362static int process_server_rules(struct session *s, struct channel *req, int an_bit)
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001363{
1364 struct proxy *px = s->be;
1365 struct server_rule *rule;
1366
1367 DPRINTF(stderr,"[%u] %s: session=%p b=%p, exp(r,w)=%u,%u bf=%08x bl=%d analysers=%02x\n",
1368 now_ms, __FUNCTION__,
1369 s,
1370 req,
1371 req->rex, req->wex,
1372 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001373 req->buf->i + req->buf->o,
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001374 req->analysers);
1375
1376 if (!(s->flags & SN_ASSIGNED)) {
1377 list_for_each_entry(rule, &px->server_rules, list) {
1378 int ret;
1379
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001380 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 +02001381 ret = acl_pass(ret);
1382 if (rule->cond->pol == ACL_COND_UNLESS)
1383 ret = !ret;
1384
1385 if (ret) {
1386 struct server *srv = rule->srv.ptr;
1387
Willy Tarreau892337c2014-05-13 23:41:20 +02001388 if ((srv->state != SRV_ST_STOPPED) ||
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001389 (px->options & PR_O_PERSIST) ||
1390 (s->flags & SN_FORCE_PRST)) {
1391 s->flags |= SN_DIRECT | SN_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001392 s->target = &srv->obj_type;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001393 break;
1394 }
1395 /* if the server is not UP, let's go on with next rules
1396 * just in case another one is suited.
1397 */
1398 }
1399 }
1400 }
1401
1402 req->analysers &= ~an_bit;
1403 req->analyse_exp = TICK_ETERNITY;
1404 return 1;
1405}
1406
Emeric Brun1d33b292010-01-04 15:47:17 +01001407/* This stream analyser works on a request. It applies all sticking rules on
1408 * it then returns 1. The data must already be present in the buffer otherwise
1409 * they won't match. It always returns 1.
1410 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001411static int process_sticking_rules(struct session *s, struct channel *req, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001412{
1413 struct proxy *px = s->be;
1414 struct sticking_rule *rule;
1415
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001416 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 +01001417 now_ms, __FUNCTION__,
1418 s,
1419 req,
1420 req->rex, req->wex,
1421 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001422 req->buf->i,
Emeric Brun1d33b292010-01-04 15:47:17 +01001423 req->analysers);
1424
1425 list_for_each_entry(rule, &px->sticking_rules, list) {
1426 int ret = 1 ;
1427 int i;
1428
Willy Tarreau9667a802013-12-09 12:52:13 +01001429 /* Only the first stick store-request of each table is applied
1430 * and other ones are ignored. The purpose is to allow complex
1431 * configurations which look for multiple entries by decreasing
1432 * order of precision and to stop at the first which matches.
1433 * An example could be a store of the IP address from an HTTP
1434 * header first, then from the source if not found.
1435 */
Emeric Brun1d33b292010-01-04 15:47:17 +01001436 for (i = 0; i < s->store_count; i++) {
1437 if (rule->table.t == s->store[i].table)
1438 break;
1439 }
1440
1441 if (i != s->store_count)
1442 continue;
1443
1444 if (rule->cond) {
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001445 ret = acl_exec_cond(rule->cond, px, s, &s->txn, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001446 ret = acl_pass(ret);
1447 if (rule->cond->pol == ACL_COND_UNLESS)
1448 ret = !ret;
1449 }
1450
1451 if (ret) {
1452 struct stktable_key *key;
1453
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001454 key = stktable_fetch_key(rule->table.t, px, s, &s->txn, SMP_OPT_DIR_REQ|SMP_OPT_FINAL, rule->expr);
Emeric Brun1d33b292010-01-04 15:47:17 +01001455 if (!key)
1456 continue;
1457
1458 if (rule->flags & STK_IS_MATCH) {
1459 struct stksess *ts;
1460
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001461 if ((ts = stktable_lookup_key(rule->table.t, key)) != NULL) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001462 if (!(s->flags & SN_ASSIGNED)) {
1463 struct eb32_node *node;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001464 void *ptr;
Emeric Brun1d33b292010-01-04 15:47:17 +01001465
1466 /* srv found in table */
Willy Tarreau13c29de2010-06-06 16:40:39 +02001467 ptr = stktable_data_ptr(rule->table.t, ts, STKTABLE_DT_SERVER_ID);
1468 node = eb32_lookup(&px->conf.used_server_id, stktable_data_cast(ptr, server_id));
Emeric Brun1d33b292010-01-04 15:47:17 +01001469 if (node) {
1470 struct server *srv;
1471
1472 srv = container_of(node, struct server, conf.id);
Willy Tarreau892337c2014-05-13 23:41:20 +02001473 if ((srv->state != SRV_ST_STOPPED) ||
Willy Tarreau4de91492010-01-22 19:10:05 +01001474 (px->options & PR_O_PERSIST) ||
1475 (s->flags & SN_FORCE_PRST)) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001476 s->flags |= SN_DIRECT | SN_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001477 s->target = &srv->obj_type;
Emeric Brun1d33b292010-01-04 15:47:17 +01001478 }
1479 }
1480 }
Emeric Brun85e77c72010-09-23 18:16:52 +02001481 stktable_touch(rule->table.t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001482 }
1483 }
1484 if (rule->flags & STK_IS_STORE) {
1485 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
1486 struct stksess *ts;
1487
1488 ts = stksess_new(rule->table.t, key);
1489 if (ts) {
1490 s->store[s->store_count].table = rule->table.t;
1491 s->store[s->store_count++].ts = ts;
1492 }
1493 }
1494 }
1495 }
1496 }
1497
1498 req->analysers &= ~an_bit;
1499 req->analyse_exp = TICK_ETERNITY;
1500 return 1;
1501}
1502
1503/* This stream analyser works on a response. It applies all store rules on it
1504 * then returns 1. The data must already be present in the buffer otherwise
1505 * they won't match. It always returns 1.
1506 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001507static int process_store_rules(struct session *s, struct channel *rep, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001508{
1509 struct proxy *px = s->be;
1510 struct sticking_rule *rule;
1511 int i;
Willy Tarreau9667a802013-12-09 12:52:13 +01001512 int nbreq = s->store_count;
Emeric Brun1d33b292010-01-04 15:47:17 +01001513
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001514 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 +01001515 now_ms, __FUNCTION__,
1516 s,
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001517 rep,
1518 rep->rex, rep->wex,
1519 rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001520 rep->buf->i,
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001521 rep->analysers);
Emeric Brun1d33b292010-01-04 15:47:17 +01001522
1523 list_for_each_entry(rule, &px->storersp_rules, list) {
1524 int ret = 1 ;
Emeric Brun1d33b292010-01-04 15:47:17 +01001525
Willy Tarreau9667a802013-12-09 12:52:13 +01001526 /* Only the first stick store-response of each table is applied
1527 * and other ones are ignored. The purpose is to allow complex
1528 * configurations which look for multiple entries by decreasing
1529 * order of precision and to stop at the first which matches.
1530 * An example could be a store of a set-cookie value, with a
1531 * fallback to a parameter found in a 302 redirect.
1532 *
1533 * The store-response rules are not allowed to override the
1534 * store-request rules for the same table, but they may coexist.
1535 * Thus we can have up to one store-request entry and one store-
1536 * response entry for the same table at any time.
1537 */
1538 for (i = nbreq; i < s->store_count; i++) {
1539 if (rule->table.t == s->store[i].table)
1540 break;
1541 }
1542
1543 /* skip existing entries for this table */
1544 if (i < s->store_count)
1545 continue;
1546
Emeric Brun1d33b292010-01-04 15:47:17 +01001547 if (rule->cond) {
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001548 ret = acl_exec_cond(rule->cond, px, s, &s->txn, SMP_OPT_DIR_RES|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001549 ret = acl_pass(ret);
1550 if (rule->cond->pol == ACL_COND_UNLESS)
1551 ret = !ret;
1552 }
1553
1554 if (ret) {
1555 struct stktable_key *key;
1556
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001557 key = stktable_fetch_key(rule->table.t, px, s, &s->txn, SMP_OPT_DIR_RES|SMP_OPT_FINAL, rule->expr);
Emeric Brun1d33b292010-01-04 15:47:17 +01001558 if (!key)
1559 continue;
1560
Willy Tarreau37e340c2013-12-06 23:05:21 +01001561 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001562 struct stksess *ts;
1563
1564 ts = stksess_new(rule->table.t, key);
1565 if (ts) {
1566 s->store[s->store_count].table = rule->table.t;
Emeric Brun1d33b292010-01-04 15:47:17 +01001567 s->store[s->store_count++].ts = ts;
1568 }
1569 }
1570 }
1571 }
1572
1573 /* process store request and store response */
1574 for (i = 0; i < s->store_count; i++) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001575 struct stksess *ts;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001576 void *ptr;
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001577
Willy Tarreauc93cd162014-05-13 15:54:22 +02001578 if (objt_server(s->target) && objt_server(s->target)->flags & SRV_F_NON_STICK) {
Simon Hormanfa461682011-06-25 09:39:49 +09001579 stksess_free(s->store[i].table, s->store[i].ts);
1580 s->store[i].ts = NULL;
1581 continue;
1582 }
1583
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001584 ts = stktable_lookup(s->store[i].table, s->store[i].ts);
1585 if (ts) {
1586 /* the entry already existed, we can free ours */
Emeric Brun85e77c72010-09-23 18:16:52 +02001587 stktable_touch(s->store[i].table, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001588 stksess_free(s->store[i].table, s->store[i].ts);
Emeric Brun1d33b292010-01-04 15:47:17 +01001589 }
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001590 else
Emeric Brun85e77c72010-09-23 18:16:52 +02001591 ts = stktable_store(s->store[i].table, s->store[i].ts, 1);
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001592
1593 s->store[i].ts = NULL;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001594 ptr = stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_ID);
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001595 stktable_data_cast(ptr, server_id) = objt_server(s->target)->puid;
Emeric Brun1d33b292010-01-04 15:47:17 +01001596 }
Willy Tarreau2a164ee2010-06-18 09:57:45 +02001597 s->store_count = 0; /* everything is stored */
Emeric Brun1d33b292010-01-04 15:47:17 +01001598
1599 rep->analysers &= ~an_bit;
1600 rep->analyse_exp = TICK_ETERNITY;
1601 return 1;
1602}
1603
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001604/* This macro is very specific to the function below. See the comments in
1605 * process_session() below to understand the logic and the tests.
1606 */
1607#define UPDATE_ANALYSERS(real, list, back, flag) { \
1608 list = (((list) & ~(flag)) | ~(back)) & (real); \
1609 back = real; \
1610 if (!(list)) \
1611 break; \
1612 if (((list) ^ ((list) & ((list) - 1))) < (flag)) \
1613 continue; \
1614}
1615
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001616/* Processes the client, server, request and response jobs of a session task,
1617 * then puts it back to the wait queue in a clean state, or cleans up its
1618 * resources if it must be deleted. Returns in <next> the date the task wants
1619 * to be woken up, or TICK_ETERNITY. In order not to call all functions for
1620 * nothing too many times, the request and response buffers flags are monitored
1621 * and each function is called only if at least another function has changed at
1622 * least one flag it is interested in.
1623 */
Willy Tarreau26c25062009-03-08 09:38:41 +01001624struct task *process_session(struct task *t)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001625{
Willy Tarreau827aee92011-03-10 16:55:02 +01001626 struct server *srv;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001627 struct session *s = t->context;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001628 unsigned int rqf_last, rpf_last;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001629 unsigned int rq_prod_last, rq_cons_last;
1630 unsigned int rp_cons_last, rp_prod_last;
Willy Tarreau576507f2010-01-07 00:09:04 +01001631 unsigned int req_ana_back;
Willy Tarreau09437572014-05-21 16:58:17 +02001632 unsigned int rq_oneshot, rp_oneshot;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001633
1634 //DPRINTF(stderr, "%s:%d: cs=%d ss=%d(%d) rqf=0x%08x rpf=0x%08x\n", __FUNCTION__, __LINE__,
1635 // s->si[0].state, s->si[1].state, s->si[1].err_type, s->req->flags, s->rep->flags);
1636
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001637 /* this data may be no longer valid, clear it */
1638 memset(&s->txn.auth, 0, sizeof(s->txn.auth));
1639
Willy Tarreau09437572014-05-21 16:58:17 +02001640 /* These flags must explicitly be set every time by the analysers who
1641 * need them, but we won't always call them (eg: during a connection
1642 * retry). So we need to keep them and only clear them if we're sure
1643 * to call the analysers.
1644 */
1645 rq_oneshot = s->req->flags & (CF_READ_NOEXP | CF_WAKE_WRITE);
1646 rp_oneshot = s->rep->flags & (CF_READ_NOEXP | CF_WAKE_WRITE);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001647
1648 /* Keep a copy of req/rep flags so that we can detect shutdowns */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001649 rqf_last = s->req->flags & ~CF_MASK_ANALYSER;
1650 rpf_last = s->rep->flags & ~CF_MASK_ANALYSER;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001651
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001652 /* we don't want the stream interface functions to recursively wake us up */
1653 if (s->req->prod->owner == t)
1654 s->req->prod->flags |= SI_FL_DONT_WAKE;
1655 if (s->req->cons->owner == t)
1656 s->req->cons->flags |= SI_FL_DONT_WAKE;
1657
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001658 /* 1a: Check for low level timeouts if needed. We just set a flag on
1659 * stream interfaces when their timeouts have expired.
1660 */
1661 if (unlikely(t->state & TASK_WOKEN_TIMER)) {
1662 stream_int_check_timeouts(&s->si[0]);
1663 stream_int_check_timeouts(&s->si[1]);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001664
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001665 /* check channel timeouts, and close the corresponding stream interfaces
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001666 * for future reads or writes. Note: this will also concern upper layers
1667 * but we do not touch any other flag. We must be careful and correctly
1668 * detect state changes when calling them.
1669 */
1670
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001671 channel_check_timeouts(s->req);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001672
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001673 if (unlikely((s->req->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
Willy Tarreau14641402009-12-29 14:49:56 +01001674 s->req->cons->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001675 si_shutw(s->req->cons);
Willy Tarreau14641402009-12-29 14:49:56 +01001676 }
1677
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001678 if (unlikely((s->req->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001679 if (s->req->prod->flags & SI_FL_NOHALF)
1680 s->req->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001681 si_shutr(s->req->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001682 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001683
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001684 channel_check_timeouts(s->rep);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001685
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001686 if (unlikely((s->rep->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
Willy Tarreau14641402009-12-29 14:49:56 +01001687 s->rep->cons->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001688 si_shutw(s->rep->cons);
Willy Tarreau14641402009-12-29 14:49:56 +01001689 }
1690
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001691 if (unlikely((s->rep->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001692 if (s->rep->prod->flags & SI_FL_NOHALF)
1693 s->rep->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001694 si_shutr(s->rep->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001695 }
Willy Tarreau798f4322012-11-08 14:49:17 +01001696
1697 /* Once in a while we're woken up because the task expires. But
1698 * this does not necessarily mean that a timeout has been reached.
1699 * So let's not run a whole session processing if only an expiration
1700 * timeout needs to be refreshed.
1701 */
1702 if (!((s->req->flags | s->rep->flags) &
1703 (CF_SHUTR|CF_READ_ACTIVITY|CF_READ_TIMEOUT|CF_SHUTW|
1704 CF_WRITE_ACTIVITY|CF_WRITE_TIMEOUT|CF_ANA_TIMEOUT)) &&
1705 !((s->si[0].flags | s->si[1].flags) & (SI_FL_EXP|SI_FL_ERR)) &&
1706 ((t->state & TASK_WOKEN_ANY) == TASK_WOKEN_TIMER))
1707 goto update_exp_and_leave;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001708 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001709
1710 /* 1b: check for low-level errors reported at the stream interface.
1711 * First we check if it's a retryable error (in which case we don't
1712 * want to tell the buffer). Otherwise we report the error one level
1713 * upper by setting flags into the buffers. Note that the side towards
1714 * the client cannot have connect (hence retryable) errors. Also, the
1715 * connection setup code must be able to deal with any type of abort.
1716 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001717 srv = objt_server(s->target);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001718 if (unlikely(s->si[0].flags & SI_FL_ERR)) {
1719 if (s->si[0].state == SI_ST_EST || s->si[0].state == SI_ST_DIS) {
Willy Tarreau73b013b2012-05-21 16:31:45 +02001720 si_shutr(&s->si[0]);
1721 si_shutw(&s->si[0]);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001722 stream_int_report_error(&s->si[0]);
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001723 if (!(s->req->analysers) && !(s->rep->analysers)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001724 s->be->be_counters.cli_aborts++;
1725 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001726 if (srv)
1727 srv->counters.cli_aborts++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001728 if (!(s->flags & SN_ERR_MASK))
1729 s->flags |= SN_ERR_CLICL;
1730 if (!(s->flags & SN_FINST_MASK))
1731 s->flags |= SN_FINST_D;
1732 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001733 }
1734 }
1735
1736 if (unlikely(s->si[1].flags & SI_FL_ERR)) {
1737 if (s->si[1].state == SI_ST_EST || s->si[1].state == SI_ST_DIS) {
Willy Tarreau73b013b2012-05-21 16:31:45 +02001738 si_shutr(&s->si[1]);
1739 si_shutw(&s->si[1]);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001740 stream_int_report_error(&s->si[1]);
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001741 s->be->be_counters.failed_resp++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001742 if (srv)
1743 srv->counters.failed_resp++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001744 if (!(s->req->analysers) && !(s->rep->analysers)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001745 s->be->be_counters.srv_aborts++;
1746 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001747 if (srv)
1748 srv->counters.srv_aborts++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001749 if (!(s->flags & SN_ERR_MASK))
1750 s->flags |= SN_ERR_SRVCL;
1751 if (!(s->flags & SN_FINST_MASK))
1752 s->flags |= SN_FINST_D;
1753 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001754 }
1755 /* note: maybe we should process connection errors here ? */
1756 }
1757
1758 if (s->si[1].state == SI_ST_CON) {
1759 /* we were trying to establish a connection on the server side,
1760 * maybe it succeeded, maybe it failed, maybe we timed out, ...
1761 */
1762 if (unlikely(!sess_update_st_con_tcp(s, &s->si[1])))
1763 sess_update_st_cer(s, &s->si[1]);
1764 else if (s->si[1].state == SI_ST_EST)
1765 sess_establish(s, &s->si[1]);
1766
1767 /* state is now one of SI_ST_CON (still in progress), SI_ST_EST
1768 * (established), SI_ST_DIS (abort), SI_ST_CLO (last error),
1769 * SI_ST_ASS/SI_ST_TAR/SI_ST_REQ for retryable errors.
1770 */
1771 }
1772
Willy Tarreau815a9b22010-07-27 17:15:12 +02001773 rq_prod_last = s->si[0].state;
1774 rq_cons_last = s->si[1].state;
1775 rp_cons_last = s->si[0].state;
1776 rp_prod_last = s->si[1].state;
1777
1778 resync_stream_interface:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001779 /* Check for connection closure */
1780
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001781 DPRINTF(stderr,
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001782 "[%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 +01001783 now_ms, __FUNCTION__, __LINE__,
1784 t,
1785 s, s->flags,
1786 s->req, s->rep,
1787 s->req->rex, s->rep->wex,
1788 s->req->flags, s->rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001789 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 +01001790 s->rep->cons->err_type, s->req->cons->err_type,
Willy Tarreauee28de02010-06-01 09:51:00 +02001791 s->req->cons->conn_retries);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001792
1793 /* nothing special to be done on client side */
1794 if (unlikely(s->req->prod->state == SI_ST_DIS))
1795 s->req->prod->state = SI_ST_CLO;
1796
1797 /* When a server-side connection is released, we have to count it and
1798 * check for pending connections on this server.
1799 */
1800 if (unlikely(s->req->cons->state == SI_ST_DIS)) {
1801 s->req->cons->state = SI_ST_CLO;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001802 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01001803 if (srv) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001804 if (s->flags & SN_CURR_SESS) {
1805 s->flags &= ~SN_CURR_SESS;
Willy Tarreau827aee92011-03-10 16:55:02 +01001806 srv->cur_sess--;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001807 }
1808 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001809 if (may_dequeue_tasks(srv, s->be))
1810 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001811 }
1812 }
1813
1814 /*
1815 * Note: of the transient states (REQ, CER, DIS), only REQ may remain
1816 * at this point.
1817 */
1818
Willy Tarreau0be0ef92009-03-08 19:20:25 +01001819 resync_request:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001820 /* Analyse request */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001821 if (((s->req->flags & ~rqf_last) & CF_MASK_ANALYSER) ||
1822 ((s->req->flags ^ rqf_last) & CF_MASK_STATIC) ||
Willy Tarreau815a9b22010-07-27 17:15:12 +02001823 s->si[0].state != rq_prod_last ||
1824 s->si[1].state != rq_cons_last) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001825 unsigned int flags = s->req->flags;
1826
Willy Tarreau09437572014-05-21 16:58:17 +02001827 s->req->flags &= ~rq_oneshot;
1828 rq_oneshot = 0;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001829 if (s->req->prod->state >= SI_ST_EST) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001830 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001831 unsigned int ana_list;
1832 unsigned int ana_back;
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001833
Willy Tarreau90deb182010-01-07 00:20:41 +01001834 /* it's up to the analysers to stop new connections,
1835 * disable reading or closing. Note: if an analyser
1836 * disables any of these bits, it is responsible for
1837 * enabling them again when it disables itself, so
1838 * that other analysers are called in similar conditions.
1839 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001840 channel_auto_read(s->req);
1841 channel_auto_connect(s->req);
1842 channel_auto_close(s->req);
Willy Tarreauedcf6682008-11-30 23:15:34 +01001843
1844 /* We will call all analysers for which a bit is set in
1845 * s->req->analysers, following the bit order from LSB
1846 * to MSB. The analysers must remove themselves from
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001847 * the list when not needed. Any analyser may return 0
1848 * to break out of the loop, either because of missing
1849 * data to take a decision, or because it decides to
1850 * kill the session. We loop at least once through each
1851 * analyser, and we may loop again if other analysers
1852 * are added in the middle.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001853 *
1854 * We build a list of analysers to run. We evaluate all
1855 * of these analysers in the order of the lower bit to
1856 * the higher bit. This ordering is very important.
1857 * An analyser will often add/remove other analysers,
1858 * including itself. Any changes to itself have no effect
1859 * on the loop. If it removes any other analysers, we
1860 * want those analysers not to be called anymore during
1861 * this loop. If it adds an analyser that is located
1862 * after itself, we want it to be scheduled for being
1863 * processed during the loop. If it adds an analyser
1864 * which is located before it, we want it to switch to
1865 * it immediately, even if it has already been called
1866 * once but removed since.
1867 *
1868 * In order to achieve this, we compare the analyser
1869 * list after the call with a copy of it before the
1870 * call. The work list is fed with analyser bits that
1871 * appeared during the call. Then we compare previous
1872 * work list with the new one, and check the bits that
1873 * appeared. If the lowest of these bits is lower than
1874 * the current bit, it means we have enabled a previous
1875 * analyser and must immediately loop again.
Willy Tarreauedcf6682008-11-30 23:15:34 +01001876 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001877
1878 ana_list = ana_back = s->req->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001879 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001880 /* Warning! ensure that analysers are always placed in ascending order! */
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001881
Willy Tarreaufb356202010-08-03 14:02:05 +02001882 if (ana_list & AN_REQ_INSPECT_FE) {
1883 if (!tcp_inspect_request(s, s->req, AN_REQ_INSPECT_FE))
Willy Tarreauedcf6682008-11-30 23:15:34 +01001884 break;
Willy Tarreaufb356202010-08-03 14:02:05 +02001885 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_INSPECT_FE);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001886 }
Willy Tarreauedcf6682008-11-30 23:15:34 +01001887
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001888 if (ana_list & AN_REQ_WAIT_HTTP) {
Willy Tarreau3a816292009-07-07 10:55:49 +02001889 if (!http_wait_for_request(s, s->req, AN_REQ_WAIT_HTTP))
Willy Tarreaud787e662009-07-07 10:14:51 +02001890 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001891 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_WAIT_HTTP);
Willy Tarreaud787e662009-07-07 10:14:51 +02001892 }
1893
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001894 if (ana_list & AN_REQ_HTTP_PROCESS_FE) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001895 if (!http_process_req_common(s, s->req, AN_REQ_HTTP_PROCESS_FE, s->fe))
1896 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001897 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_PROCESS_FE);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001898 }
1899
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001900 if (ana_list & AN_REQ_SWITCHING_RULES) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001901 if (!process_switching_rules(s, s->req, AN_REQ_SWITCHING_RULES))
1902 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001903 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_SWITCHING_RULES);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001904 }
1905
Willy Tarreaufb356202010-08-03 14:02:05 +02001906 if (ana_list & AN_REQ_INSPECT_BE) {
1907 if (!tcp_inspect_request(s, s->req, AN_REQ_INSPECT_BE))
1908 break;
1909 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_INSPECT_BE);
1910 }
1911
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001912 if (ana_list & AN_REQ_HTTP_PROCESS_BE) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001913 if (!http_process_req_common(s, s->req, AN_REQ_HTTP_PROCESS_BE, s->be))
1914 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001915 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_PROCESS_BE);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001916 }
1917
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001918 if (ana_list & AN_REQ_HTTP_TARPIT) {
Willy Tarreau3a816292009-07-07 10:55:49 +02001919 if (!http_process_tarpit(s, s->req, AN_REQ_HTTP_TARPIT))
Willy Tarreau60b85b02008-11-30 23:28:40 +01001920 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001921 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_TARPIT);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001922 }
Willy Tarreau60b85b02008-11-30 23:28:40 +01001923
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001924 if (ana_list & AN_REQ_SRV_RULES) {
1925 if (!process_server_rules(s, s->req, AN_REQ_SRV_RULES))
1926 break;
1927 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_SRV_RULES);
1928 }
1929
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001930 if (ana_list & AN_REQ_HTTP_INNER) {
Willy Tarreauc465fd72009-08-31 00:17:18 +02001931 if (!http_process_request(s, s->req, AN_REQ_HTTP_INNER))
1932 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001933 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_INNER);
Willy Tarreauc465fd72009-08-31 00:17:18 +02001934 }
1935
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001936 if (ana_list & AN_REQ_HTTP_BODY) {
Willy Tarreau5a8f9472014-04-10 11:16:06 +02001937 if (!http_wait_for_request_body(s, s->req, AN_REQ_HTTP_BODY))
Willy Tarreaud34af782008-11-30 23:36:37 +01001938 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001939 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_BODY);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001940 }
Emeric Brun647caf12009-06-30 17:57:00 +02001941
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001942 if (ana_list & AN_REQ_PRST_RDP_COOKIE) {
Emeric Brun647caf12009-06-30 17:57:00 +02001943 if (!tcp_persist_rdp_cookie(s, s->req, AN_REQ_PRST_RDP_COOKIE))
1944 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001945 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_PRST_RDP_COOKIE);
Emeric Brun647caf12009-06-30 17:57:00 +02001946 }
Willy Tarreaud98cf932009-12-27 22:54:55 +01001947
Emeric Brun1d33b292010-01-04 15:47:17 +01001948 if (ana_list & AN_REQ_STICKING_RULES) {
1949 if (!process_sticking_rules(s, s->req, AN_REQ_STICKING_RULES))
1950 break;
1951 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_STICKING_RULES);
1952 }
1953
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001954 if (ana_list & AN_REQ_HTTP_XFER_BODY) {
Willy Tarreaud98cf932009-12-27 22:54:55 +01001955 if (!http_request_forward_body(s, s->req, AN_REQ_HTTP_XFER_BODY))
1956 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001957 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_XFER_BODY);
Willy Tarreaud98cf932009-12-27 22:54:55 +01001958 }
Willy Tarreaue34070e2010-01-08 00:32:27 +01001959 break;
1960 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001961 }
Willy Tarreau84455332009-03-15 22:34:05 +01001962
Willy Tarreau815a9b22010-07-27 17:15:12 +02001963 rq_prod_last = s->si[0].state;
1964 rq_cons_last = s->si[1].state;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001965 s->req->flags &= ~CF_WAKE_ONCE;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001966 rqf_last = s->req->flags;
1967
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001968 if ((s->req->flags ^ flags) & CF_MASK_STATIC)
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001969 goto resync_request;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001970 }
1971
Willy Tarreau576507f2010-01-07 00:09:04 +01001972 /* we'll monitor the request analysers while parsing the response,
1973 * because some response analysers may indirectly enable new request
1974 * analysers (eg: HTTP keep-alive).
1975 */
1976 req_ana_back = s->req->analysers;
1977
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001978 resync_response:
1979 /* Analyse response */
1980
Willy Tarreaub31c9712012-11-11 23:05:39 +01001981 if (((s->rep->flags & ~rpf_last) & CF_MASK_ANALYSER) ||
Willy Tarreau09437572014-05-21 16:58:17 +02001982 ((s->rep->flags ^ rpf_last) & CF_MASK_STATIC) ||
1983 s->si[0].state != rp_cons_last ||
1984 s->si[1].state != rp_prod_last) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001985 unsigned int flags = s->rep->flags;
1986
Willy Tarreau09437572014-05-21 16:58:17 +02001987 s->rep->flags &= ~rp_oneshot;
1988 rp_oneshot = 0;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001989 if ((s->rep->flags & CF_MASK_ANALYSER) &&
Willy Tarreau0499e352010-12-17 07:13:42 +01001990 (s->rep->analysers & AN_REQ_WAIT_HTTP)) {
1991 /* Due to HTTP pipelining, the HTTP request analyser might be waiting
1992 * for some free space in the response buffer, so we might need to call
1993 * it when something changes in the response buffer, but still we pass
1994 * it the request buffer. Note that the SI state might very well still
1995 * be zero due to us returning a flow of redirects!
1996 */
1997 s->rep->analysers &= ~AN_REQ_WAIT_HTTP;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001998 s->req->flags |= CF_WAKE_ONCE;
Willy Tarreau0499e352010-12-17 07:13:42 +01001999 }
2000
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002001 if (s->rep->prod->state >= SI_ST_EST) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01002002 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002003 unsigned int ana_list;
2004 unsigned int ana_back;
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002005
Willy Tarreau90deb182010-01-07 00:20:41 +01002006 /* it's up to the analysers to stop disable reading or
2007 * closing. Note: if an analyser disables any of these
2008 * bits, it is responsible for enabling them again when
2009 * it disables itself, so that other analysers are called
2010 * in similar conditions.
2011 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002012 channel_auto_read(s->rep);
2013 channel_auto_close(s->rep);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002014
2015 /* We will call all analysers for which a bit is set in
2016 * s->rep->analysers, following the bit order from LSB
2017 * to MSB. The analysers must remove themselves from
2018 * the list when not needed. Any analyser may return 0
2019 * to break out of the loop, either because of missing
2020 * data to take a decision, or because it decides to
2021 * kill the session. We loop at least once through each
2022 * analyser, and we may loop again if other analysers
2023 * are added in the middle.
2024 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002025
2026 ana_list = ana_back = s->rep->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01002027 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002028 /* Warning! ensure that analysers are always placed in ascending order! */
2029
Emeric Brun97679e72010-09-23 17:56:44 +02002030 if (ana_list & AN_RES_INSPECT) {
2031 if (!tcp_inspect_response(s, s->rep, AN_RES_INSPECT))
2032 break;
2033 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_INSPECT);
2034 }
2035
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002036 if (ana_list & AN_RES_WAIT_HTTP) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002037 if (!http_wait_for_response(s, s->rep, AN_RES_WAIT_HTTP))
2038 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002039 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_WAIT_HTTP);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002040 }
2041
Emeric Brun1d33b292010-01-04 15:47:17 +01002042 if (ana_list & AN_RES_STORE_RULES) {
2043 if (!process_store_rules(s, s->rep, AN_RES_STORE_RULES))
2044 break;
2045 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_STORE_RULES);
2046 }
2047
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002048 if (ana_list & AN_RES_HTTP_PROCESS_BE) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002049 if (!http_process_res_common(s, s->rep, AN_RES_HTTP_PROCESS_BE, s->be))
2050 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002051 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_HTTP_PROCESS_BE);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002052 }
Willy Tarreaud98cf932009-12-27 22:54:55 +01002053
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002054 if (ana_list & AN_RES_HTTP_XFER_BODY) {
Willy Tarreaud98cf932009-12-27 22:54:55 +01002055 if (!http_response_forward_body(s, s->rep, AN_RES_HTTP_XFER_BODY))
2056 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002057 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_HTTP_XFER_BODY);
Willy Tarreaud98cf932009-12-27 22:54:55 +01002058 }
Willy Tarreaue34070e2010-01-08 00:32:27 +01002059 break;
2060 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002061 }
2062
Willy Tarreau815a9b22010-07-27 17:15:12 +02002063 rp_cons_last = s->si[0].state;
2064 rp_prod_last = s->si[1].state;
2065 rpf_last = s->rep->flags;
2066
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002067 if ((s->rep->flags ^ flags) & CF_MASK_STATIC)
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002068 goto resync_response;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002069 }
2070
Willy Tarreau576507f2010-01-07 00:09:04 +01002071 /* maybe someone has added some request analysers, so we must check and loop */
2072 if (s->req->analysers & ~req_ana_back)
2073 goto resync_request;
2074
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002075 if ((s->req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0499e352010-12-17 07:13:42 +01002076 goto resync_request;
2077
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002078 /* FIXME: here we should call protocol handlers which rely on
2079 * both buffers.
2080 */
2081
2082
2083 /*
Willy Tarreauae526782010-03-04 20:34:23 +01002084 * Now we propagate unhandled errors to the session. Normally
2085 * we're just in a data phase here since it means we have not
2086 * seen any analyser who could set an error status.
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002087 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002088 srv = objt_server(s->target);
Willy Tarreau2f976e12010-11-11 14:28:47 +01002089 if (unlikely(!(s->flags & SN_ERR_MASK))) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002090 if (s->req->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002091 /* Report it if the client got an error or a read timeout expired */
Willy Tarreau84455332009-03-15 22:34:05 +01002092 s->req->analysers = 0;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002093 if (s->req->flags & CF_READ_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002094 s->be->be_counters.cli_aborts++;
2095 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002096 if (srv)
2097 srv->counters.cli_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002098 s->flags |= SN_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002099 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002100 else if (s->req->flags & CF_READ_TIMEOUT) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002101 s->be->be_counters.cli_aborts++;
2102 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002103 if (srv)
2104 srv->counters.cli_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002105 s->flags |= SN_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01002106 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002107 else if (s->req->flags & CF_WRITE_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002108 s->be->be_counters.srv_aborts++;
2109 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002110 if (srv)
2111 srv->counters.srv_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002112 s->flags |= SN_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002113 }
2114 else {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002115 s->be->be_counters.srv_aborts++;
2116 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002117 if (srv)
2118 srv->counters.srv_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002119 s->flags |= SN_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002120 }
Willy Tarreau84455332009-03-15 22:34:05 +01002121 sess_set_term_flags(s);
2122 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002123 else if (s->rep->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002124 /* Report it if the server got an error or a read timeout expired */
2125 s->rep->analysers = 0;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002126 if (s->rep->flags & CF_READ_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002127 s->be->be_counters.srv_aborts++;
2128 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002129 if (srv)
2130 srv->counters.srv_aborts++;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002131 s->flags |= SN_ERR_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002132 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002133 else if (s->rep->flags & CF_READ_TIMEOUT) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002134 s->be->be_counters.srv_aborts++;
2135 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002136 if (srv)
2137 srv->counters.srv_aborts++;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002138 s->flags |= SN_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002139 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002140 else if (s->rep->flags & CF_WRITE_ERROR) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002141 s->be->be_counters.cli_aborts++;
2142 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002143 if (srv)
2144 srv->counters.cli_aborts++;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002145 s->flags |= SN_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002146 }
2147 else {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002148 s->be->be_counters.cli_aborts++;
2149 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002150 if (srv)
2151 srv->counters.cli_aborts++;
Willy Tarreauae526782010-03-04 20:34:23 +01002152 s->flags |= SN_ERR_CLITO;
2153 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002154 sess_set_term_flags(s);
2155 }
Willy Tarreau84455332009-03-15 22:34:05 +01002156 }
2157
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002158 /*
2159 * Here we take care of forwarding unhandled data. This also includes
2160 * connection establishments and shutdown requests.
2161 */
2162
2163
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002164 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002165 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002166 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002167 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002168 */
Willy Tarreau2b028dd2013-12-31 23:56:46 +01002169 if (unlikely(!s->req->analysers &&
Willy Tarreaub31c9712012-11-11 23:05:39 +01002170 !(s->req->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau31971e52009-09-20 12:07:52 +02002171 (s->req->prod->state >= SI_ST_EST) &&
Willy Tarreau2b028dd2013-12-31 23:56:46 +01002172 (s->req->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002173 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002174 * attached to it. If any data are left in, we'll permit them to
2175 * move.
2176 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002177 channel_auto_read(s->req);
2178 channel_auto_connect(s->req);
2179 channel_auto_close(s->req);
Willy Tarreau9b28e032012-10-12 23:49:43 +02002180 buffer_flush(s->req->buf);
Willy Tarreau5bd8c372009-01-19 00:32:22 +01002181
Willy Tarreau09437572014-05-21 16:58:17 +02002182 s->req->flags &= ~rq_oneshot;
2183 rq_oneshot = 0;
2184
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 Tarreau8263d2b2012-08-28 00:06:31 +02002189 channel_forward(s->req, CHN_INFINITE_FORWARD);
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);
2220 if (tick_isset(s->fe->timeout.clientfin)) {
2221 s->rep->wto = s->fe->timeout.clientfin;
2222 s->rep->wex = tick_add(now_ms, s->rep->wto);
2223 }
2224 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002225
2226 /* shutdown(write) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002227 if (unlikely((s->req->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
Willy Tarreau8615c2a2013-06-21 08:20:19 +02002228 channel_is_empty(s->req))) {
2229 if (s->req->flags & CF_READ_ERROR)
2230 s->req->cons->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02002231 si_shutw(s->req->cons);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002232 if (tick_isset(s->be->timeout.serverfin)) {
2233 s->rep->rto = s->be->timeout.serverfin;
2234 s->rep->rex = tick_add(now_ms, s->rep->rto);
2235 }
Willy Tarreau8615c2a2013-06-21 08:20:19 +02002236 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002237
2238 /* shutdown(write) done on server side, we must stop the client too */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002239 if (unlikely((s->req->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW &&
Willy Tarreau3dbc6942008-12-07 13:05:04 +01002240 !s->req->analysers))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002241 channel_shutr_now(s->req);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002242
2243 /* shutdown(read) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002244 if (unlikely((s->req->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002245 if (s->req->prod->flags & SI_FL_NOHALF)
2246 s->req->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02002247 si_shutr(s->req->prod);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002248 if (tick_isset(s->fe->timeout.clientfin)) {
2249 s->rep->wto = s->fe->timeout.clientfin;
2250 s->rep->wex = tick_add(now_ms, s->rep->wto);
2251 }
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002252 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002253
Willy Tarreau520d95e2009-09-19 21:04:57 +02002254 /* it's possible that an upper layer has requested a connection setup or abort.
2255 * There are 2 situations where we decide to establish a new connection :
2256 * - there are data scheduled for emission in the buffer
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002257 * - the CF_AUTO_CONNECT flag is set (active connection)
Willy Tarreau520d95e2009-09-19 21:04:57 +02002258 */
2259 if (s->req->cons->state == SI_ST_INI) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002260 if (!(s->req->flags & CF_SHUTW)) {
2261 if ((s->req->flags & CF_AUTO_CONNECT) || !channel_is_empty(s->req)) {
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002262 /* If we have an appctx, there is no connect method, so we
2263 * immediately switch to the connected state, otherwise we
2264 * perform a connection request.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002265 */
Willy Tarreau85e7d002010-05-31 11:57:51 +02002266 s->req->cons->state = SI_ST_REQ; /* new connection requested */
Willy Tarreau070ceb62010-06-01 10:36:43 +02002267 s->req->cons->conn_retries = s->be->conn_retries;
Willy Tarreau520d95e2009-09-19 21:04:57 +02002268 }
Willy Tarreau73201222009-08-16 18:27:24 +02002269 }
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002270 else {
Willy Tarreau92795622009-03-06 12:51:23 +01002271 s->req->cons->state = SI_ST_CLO; /* shutw+ini = abort */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002272 channel_shutw_now(s->req); /* fix buffer flags upon abort */
2273 channel_shutr_now(s->rep);
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002274 }
Willy Tarreau92795622009-03-06 12:51:23 +01002275 }
2276
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002277
2278 /* we may have a pending connection request, or a connection waiting
2279 * for completion.
2280 */
2281 if (s->si[1].state >= SI_ST_REQ && s->si[1].state < SI_ST_CON) {
2282 do {
2283 /* nb: step 1 might switch from QUE to ASS, but we first want
2284 * to give a chance to step 2 to perform a redirect if needed.
2285 */
2286 if (s->si[1].state != SI_ST_REQ)
2287 sess_update_stream_int(s, &s->si[1]);
Willy Tarreaub44c8732013-12-31 23:16:50 +01002288 if (s->si[1].state == SI_ST_REQ)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002289 sess_prepare_conn_req(s, &s->si[1]);
2290
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +01002291 /* applets directly go to the ESTABLISHED state. Similarly,
2292 * servers experience the same fate when their connection
2293 * is reused.
2294 */
Willy Tarreaub44c8732013-12-31 23:16:50 +01002295 if (unlikely(s->si[1].state == SI_ST_EST))
2296 sess_establish(s, &s->si[1]);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01002297
Willy Tarreaub44c8732013-12-31 23:16:50 +01002298 /* Now we can add the server name to a header (if requested) */
2299 /* check for HTTP mode and proxy server_name_hdr_name != NULL */
2300 if ((s->si[1].state >= SI_ST_CON) &&
2301 (s->be->server_id_hdr_name != NULL) &&
2302 (s->be->mode == PR_MODE_HTTP) &&
2303 objt_server(s->target)) {
2304 http_send_name_header(&s->txn, s->be, objt_server(s->target)->id);
Willy Tarreau1e5dfda2013-04-07 18:19:16 +02002305 }
2306
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002307 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01002308 if (s->si[1].state == SI_ST_ASS && srv && srv->rdr_len && (s->flags & SN_REDIRECTABLE))
Willy Tarreau71241ab2012-12-27 11:30:54 +01002309 http_perform_server_redirect(s, &s->si[1]);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002310 } while (s->si[1].state == SI_ST_ASS);
2311 }
2312
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002313 /* Benchmarks have shown that it's optimal to do a full resync now */
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002314 if (s->req->prod->state == SI_ST_DIS || s->req->cons->state == SI_ST_DIS)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002315 goto resync_stream_interface;
2316
Willy Tarreau815a9b22010-07-27 17:15:12 +02002317 /* otherwise we want to check if we need to resync the req buffer or not */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002318 if ((s->req->flags ^ rqf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002319 goto resync_request;
2320
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002321 /* perform output updates to the response buffer */
Willy Tarreau84455332009-03-15 22:34:05 +01002322
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002323 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002324 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002325 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002326 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002327 */
Willy Tarreau2b028dd2013-12-31 23:56:46 +01002328 if (unlikely(!s->rep->analysers &&
Willy Tarreaub31c9712012-11-11 23:05:39 +01002329 !(s->rep->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau31971e52009-09-20 12:07:52 +02002330 (s->rep->prod->state >= SI_ST_EST) &&
Willy Tarreau2b028dd2013-12-31 23:56:46 +01002331 (s->rep->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002332 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002333 * attached to it. If any data are left in, we'll permit them to
2334 * move.
2335 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002336 channel_auto_read(s->rep);
2337 channel_auto_close(s->rep);
Willy Tarreau9b28e032012-10-12 23:49:43 +02002338 buffer_flush(s->rep->buf);
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002339
Willy Tarreau09437572014-05-21 16:58:17 +02002340 s->rep->flags &= ~rp_oneshot;
2341 rp_oneshot = 0;
2342
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002343 /* We'll let data flow between the producer (if still connected)
2344 * to the consumer.
2345 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002346 if (!(s->rep->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002347 channel_forward(s->rep, CHN_INFINITE_FORWARD);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002348
2349 /* if we have no analyser anymore in any direction and have a
Willy Tarreau05cdd962014-05-10 14:30:07 +02002350 * tunnel timeout set, use it now. Note that we must respect
2351 * the half-closed timeouts as well.
Willy Tarreauce887fd2012-05-12 12:50:00 +02002352 */
2353 if (!s->req->analysers && s->be->timeout.tunnel) {
2354 s->req->rto = s->req->wto = s->rep->rto = s->rep->wto =
2355 s->be->timeout.tunnel;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002356
2357 if ((s->req->flags & CF_SHUTR) && tick_isset(s->fe->timeout.clientfin))
2358 s->rep->wto = s->fe->timeout.clientfin;
2359 if ((s->req->flags & CF_SHUTW) && tick_isset(s->be->timeout.serverfin))
2360 s->rep->rto = s->be->timeout.serverfin;
2361 if ((s->rep->flags & CF_SHUTR) && tick_isset(s->be->timeout.serverfin))
2362 s->req->wto = s->be->timeout.serverfin;
2363 if ((s->rep->flags & CF_SHUTW) && tick_isset(s->fe->timeout.clientfin))
2364 s->req->rto = s->fe->timeout.clientfin;
2365
2366 s->req->rex = tick_add(now_ms, s->req->rto);
2367 s->req->wex = tick_add(now_ms, s->req->wto);
2368 s->rep->rex = tick_add(now_ms, s->rep->rto);
2369 s->rep->wex = tick_add(now_ms, s->rep->wto);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002370 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002371 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002372
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002373 /* check if it is wise to enable kernel splicing to forward response data */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002374 if (!(s->rep->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002375 s->rep->to_forward &&
2376 (global.tune.options & GTUNE_USE_SPLICE) &&
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002377 (objt_conn(s->si[0].end) && __objt_conn(s->si[0].end)->xprt && __objt_conn(s->si[0].end)->xprt->snd_pipe) &&
2378 (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 +01002379 (pipes_used < global.maxpipes) &&
2380 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_RTR) ||
2381 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002382 (s->rep->flags & CF_STREAMER_FAST)))) {
2383 s->rep->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002384 }
2385
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002386 /* reflect what the L7 analysers have seen last */
2387 rpf_last = s->rep->flags;
2388
2389 /*
2390 * Now forward all shutdown requests between both sides of the buffer
2391 */
2392
2393 /*
2394 * FIXME: this is probably where we should produce error responses.
2395 */
2396
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002397 /* first, let's check if the response buffer needs to shutdown(write) */
Willy Tarreaub31c9712012-11-11 23:05:39 +01002398 if (unlikely((s->rep->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau05cdd962014-05-10 14:30:07 +02002399 (CF_AUTO_CLOSE|CF_SHUTR))) {
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002400 channel_shutw_now(s->rep);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002401 if (tick_isset(s->be->timeout.serverfin)) {
2402 s->req->wto = s->be->timeout.serverfin;
2403 s->req->wex = tick_add(now_ms, s->req->wto);
2404 }
2405 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002406
2407 /* shutdown(write) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002408 if (unlikely((s->rep->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
Willy Tarreau05cdd962014-05-10 14:30:07 +02002409 channel_is_empty(s->rep))) {
Willy Tarreau73b013b2012-05-21 16:31:45 +02002410 si_shutw(s->rep->cons);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002411 if (tick_isset(s->fe->timeout.clientfin)) {
2412 s->req->rto = s->fe->timeout.clientfin;
2413 s->req->rex = tick_add(now_ms, s->req->rto);
2414 }
2415 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002416
2417 /* shutdown(write) done on the client side, we must stop the server too */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002418 if (unlikely((s->rep->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW) &&
Willy Tarreau3dbc6942008-12-07 13:05:04 +01002419 !s->rep->analysers)
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002420 channel_shutr_now(s->rep);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002421
2422 /* shutdown(read) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002423 if (unlikely((s->rep->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002424 if (s->rep->prod->flags & SI_FL_NOHALF)
2425 s->rep->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02002426 si_shutr(s->rep->prod);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002427 if (tick_isset(s->be->timeout.serverfin)) {
2428 s->req->wto = s->be->timeout.serverfin;
2429 s->req->wex = tick_add(now_ms, s->req->wto);
2430 }
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002431 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002432
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002433 if (s->req->prod->state == SI_ST_DIS || s->req->cons->state == SI_ST_DIS)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002434 goto resync_stream_interface;
2435
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002436 if (s->req->flags != rqf_last)
2437 goto resync_request;
2438
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002439 if ((s->rep->flags ^ rpf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002440 goto resync_response;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002441
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002442 /* we're interested in getting wakeups again */
2443 s->req->prod->flags &= ~SI_FL_DONT_WAKE;
2444 s->req->cons->flags &= ~SI_FL_DONT_WAKE;
2445
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002446 /* This is needed only when debugging is enabled, to indicate
2447 * client-side or server-side close. Please note that in the unlikely
2448 * event where both sides would close at once, the sequence is reported
2449 * on the server side first.
2450 */
2451 if (unlikely((global.mode & MODE_DEBUG) &&
2452 (!(global.mode & MODE_QUIET) ||
2453 (global.mode & MODE_VERBOSE)))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002454 if (s->si[1].state == SI_ST_CLO &&
2455 s->si[1].prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002456 chunk_printf(&trash, "%08x:%s.srvcls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002457 s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002458 objt_conn(s->si[0].end) ? (unsigned short)objt_conn(s->si[0].end)->t.sock.fd : -1,
2459 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 +01002460 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002461 }
2462
2463 if (s->si[0].state == SI_ST_CLO &&
2464 s->si[0].prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002465 chunk_printf(&trash, "%08x:%s.clicls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002466 s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002467 objt_conn(s->si[0].end) ? (unsigned short)objt_conn(s->si[0].end)->t.sock.fd : -1,
2468 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 +01002469 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002470 }
2471 }
2472
2473 if (likely((s->rep->cons->state != SI_ST_CLO) ||
2474 (s->req->cons->state > SI_ST_INI && s->req->cons->state < SI_ST_CLO))) {
2475
2476 if ((s->fe->options & PR_O_CONTSTATS) && (s->flags & SN_BE_ASSIGNED))
2477 session_process_counters(s);
2478
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002479 if (s->rep->cons->state == SI_ST_EST && obj_type(s->rep->cons->end) != OBJ_TYPE_APPCTX)
Willy Tarreau73b013b2012-05-21 16:31:45 +02002480 si_update(s->rep->cons);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002481
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002482 if (s->req->cons->state == SI_ST_EST && obj_type(s->req->cons->end) != OBJ_TYPE_APPCTX)
Willy Tarreau73b013b2012-05-21 16:31:45 +02002483 si_update(s->req->cons);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002484
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002485 s->req->flags &= ~(CF_READ_NULL|CF_READ_PARTIAL|CF_WRITE_NULL|CF_WRITE_PARTIAL|CF_READ_ATTACHED);
2486 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 +01002487 s->si[0].prev_state = s->si[0].state;
2488 s->si[1].prev_state = s->si[1].state;
Willy Tarreaub0ef7352008-12-14 13:26:20 +01002489 s->si[0].flags &= ~(SI_FL_ERR|SI_FL_EXP);
2490 s->si[1].flags &= ~(SI_FL_ERR|SI_FL_EXP);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002491
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002492 /* When any of the stream interfaces is attached to an applet,
2493 * we have to call it here. Note that this one may wake the
2494 * task up again. If at least one applet was called, the current
2495 * task might have been woken up, in which case we don't want it
2496 * to be requeued to the wait queue but rather to the run queue
2497 * to run ASAP. The bitwise "or" in the condition ensures that
2498 * both functions are always called and that we wake up if at
2499 * least one did something.
Willy Tarreau1accfc02009-09-05 20:57:35 +02002500 */
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002501 if ((si_applet_call(s->req->cons) | si_applet_call(s->rep->cons)) != 0) {
Willy Tarreau1accfc02009-09-05 20:57:35 +02002502 if (task_in_rq(t)) {
Willy Tarreau1accfc02009-09-05 20:57:35 +02002503 t->expire = TICK_ETERNITY;
2504 return t;
2505 }
2506 }
2507
Willy Tarreau798f4322012-11-08 14:49:17 +01002508 update_exp_and_leave:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002509 t->expire = tick_first(tick_first(s->req->rex, s->req->wex),
2510 tick_first(s->rep->rex, s->rep->wex));
2511 if (s->req->analysers)
2512 t->expire = tick_first(t->expire, s->req->analyse_exp);
2513
2514 if (s->si[0].exp)
2515 t->expire = tick_first(t->expire, s->si[0].exp);
2516
2517 if (s->si[1].exp)
2518 t->expire = tick_first(t->expire, s->si[1].exp);
2519
2520#ifdef DEBUG_FULL
Willy Tarreau127334e2009-03-28 10:47:26 +01002521 fprintf(stderr,
2522 "[%u] queuing with exp=%u req->rex=%u req->wex=%u req->ana_exp=%u"
2523 " rep->rex=%u rep->wex=%u, si[0].exp=%u, si[1].exp=%u, cs=%d, ss=%d\n",
2524 now_ms, t->expire, s->req->rex, s->req->wex, s->req->analyse_exp,
2525 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 +01002526#endif
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002527
2528#ifdef DEBUG_DEV
2529 /* this may only happen when no timeout is set or in case of an FSM bug */
Willy Tarreaud0a201b2009-03-08 15:53:06 +01002530 if (!tick_isset(t->expire))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002531 ABORT_NOW();
2532#endif
Willy Tarreau26c25062009-03-08 09:38:41 +01002533 return t; /* nothing more to do */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002534 }
2535
2536 s->fe->feconn--;
2537 if (s->flags & SN_BE_ASSIGNED)
2538 s->be->beconn--;
Willy Tarreauaf7ad002010-08-31 15:39:26 +02002539 jobs--;
Thierry FOURNIERa47a94f2014-03-20 15:42:53 +01002540 if (s->listener) {
2541 if (!(s->listener->options & LI_O_UNLIMITED))
2542 actconn--;
2543 s->listener->nbconn--;
2544 if (s->listener->state == LI_FULL)
2545 resume_listener(s->listener);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002546
Thierry FOURNIERa47a94f2014-03-20 15:42:53 +01002547 /* Dequeues all of the listeners waiting for a resource */
2548 if (!LIST_ISEMPTY(&global_listener_queue))
2549 dequeue_all_listeners(&global_listener_queue);
Willy Tarreau08ceb102011-07-24 22:58:00 +02002550
Thierry FOURNIERa47a94f2014-03-20 15:42:53 +01002551 if (!LIST_ISEMPTY(&s->fe->listener_queue) &&
2552 (!s->fe->fe_sps_lim || freq_ctr_remain(&s->fe->fe_sess_per_sec, s->fe->fe_sps_lim, 0) > 0))
2553 dequeue_all_listeners(&s->fe->listener_queue);
2554 }
Willy Tarreau07687c12011-07-24 23:55:06 +02002555
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002556 if (unlikely((global.mode & MODE_DEBUG) &&
2557 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)))) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002558 chunk_printf(&trash, "%08x:%s.closed[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002559 s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002560 objt_conn(s->si[0].end) ? (unsigned short)objt_conn(s->si[0].end)->t.sock.fd : -1,
2561 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 +01002562 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002563 }
2564
2565 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
2566 session_process_counters(s);
2567
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002568 if (s->txn.status) {
2569 int n;
2570
2571 n = s->txn.status / 100;
2572 if (n < 1 || n > 5)
2573 n = 0;
2574
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002575 if (s->fe->mode == PR_MODE_HTTP) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002576 s->fe->fe_counters.p.http.rsp[n]++;
Willy Tarreau8139b992012-11-27 07:35:31 +01002577 if (s->comp_algo && (s->flags & SN_COMP_READY))
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002578 s->fe->fe_counters.p.http.comp_rsp++;
2579 }
Willy Tarreau24657792010-02-26 10:30:28 +01002580 if ((s->flags & SN_BE_ASSIGNED) &&
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002581 (s->be->mode == PR_MODE_HTTP)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002582 s->be->be_counters.p.http.rsp[n]++;
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002583 s->be->be_counters.p.http.cum_req++;
Willy Tarreau8139b992012-11-27 07:35:31 +01002584 if (s->comp_algo && (s->flags & SN_COMP_READY))
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002585 s->be->be_counters.p.http.comp_rsp++;
2586 }
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002587 }
2588
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002589 /* let's do a final log if we need it */
Willy Tarreaud79a3b22012-12-28 09:40:16 +01002590 if (!LIST_ISEMPTY(&s->fe->logformat) && s->logs.logwait &&
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002591 !(s->flags & SN_MONITOR) &&
2592 (!(s->fe->options & PR_O_NULLNOLOG) || s->req->total)) {
Willy Tarreaua5555ec2008-11-30 19:02:32 +01002593 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002594 }
2595
2596 /* the task MUST not be in the run queue anymore */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002597 session_free(s);
Willy Tarreau26c25062009-03-08 09:38:41 +01002598 task_delete(t);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002599 task_free(t);
Willy Tarreau26c25062009-03-08 09:38:41 +01002600 return NULL;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002601}
2602
Willy Tarreau7c669d72008-06-20 15:04:11 +02002603/*
2604 * This function adjusts sess->srv_conn and maintains the previous and new
2605 * server's served session counts. Setting newsrv to NULL is enough to release
2606 * current connection slot. This function also notifies any LB algo which might
2607 * expect to be informed about any change in the number of active sessions on a
2608 * server.
2609 */
2610void sess_change_server(struct session *sess, struct server *newsrv)
2611{
2612 if (sess->srv_conn == newsrv)
2613 return;
2614
2615 if (sess->srv_conn) {
2616 sess->srv_conn->served--;
2617 if (sess->srv_conn->proxy->lbprm.server_drop_conn)
2618 sess->srv_conn->proxy->lbprm.server_drop_conn(sess->srv_conn);
Simon Hormanaf514952011-06-21 14:34:57 +09002619 session_del_srv_conn(sess);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002620 }
2621
2622 if (newsrv) {
2623 newsrv->served++;
2624 if (newsrv->proxy->lbprm.server_take_conn)
2625 newsrv->proxy->lbprm.server_take_conn(newsrv);
Simon Hormanaf514952011-06-21 14:34:57 +09002626 session_add_srv_conn(sess, newsrv);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002627 }
2628}
2629
Willy Tarreau84455332009-03-15 22:34:05 +01002630/* Handle server-side errors for default protocols. It is called whenever a a
2631 * connection setup is aborted or a request is aborted in queue. It sets the
2632 * session termination flags so that the caller does not have to worry about
2633 * them. It's installed as ->srv_error for the server-side stream_interface.
2634 */
2635void default_srv_error(struct session *s, struct stream_interface *si)
2636{
2637 int err_type = si->err_type;
2638 int err = 0, fin = 0;
2639
2640 if (err_type & SI_ET_QUEUE_ABRT) {
2641 err = SN_ERR_CLICL;
2642 fin = SN_FINST_Q;
2643 }
2644 else if (err_type & SI_ET_CONN_ABRT) {
2645 err = SN_ERR_CLICL;
2646 fin = SN_FINST_C;
2647 }
2648 else if (err_type & SI_ET_QUEUE_TO) {
2649 err = SN_ERR_SRVTO;
2650 fin = SN_FINST_Q;
2651 }
2652 else if (err_type & SI_ET_QUEUE_ERR) {
2653 err = SN_ERR_SRVCL;
2654 fin = SN_FINST_Q;
2655 }
2656 else if (err_type & SI_ET_CONN_TO) {
2657 err = SN_ERR_SRVTO;
2658 fin = SN_FINST_C;
2659 }
2660 else if (err_type & SI_ET_CONN_ERR) {
2661 err = SN_ERR_SRVCL;
2662 fin = SN_FINST_C;
2663 }
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002664 else if (err_type & SI_ET_CONN_RES) {
2665 err = SN_ERR_RESOURCE;
2666 fin = SN_FINST_C;
2667 }
Willy Tarreau84455332009-03-15 22:34:05 +01002668 else /* SI_ET_CONN_OTHER and others */ {
2669 err = SN_ERR_INTERNAL;
2670 fin = SN_FINST_C;
2671 }
2672
2673 if (!(s->flags & SN_ERR_MASK))
2674 s->flags |= err;
2675 if (!(s->flags & SN_FINST_MASK))
2676 s->flags |= fin;
2677}
Willy Tarreau7c669d72008-06-20 15:04:11 +02002678
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002679/* kill a session and set the termination flags to <why> (one of SN_ERR_*) */
2680void session_shutdown(struct session *session, int why)
2681{
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002682 if (session->req->flags & (CF_SHUTW|CF_SHUTW_NOW))
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002683 return;
2684
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002685 channel_shutw_now(session->req);
2686 channel_shutr_now(session->rep);
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002687 session->task->nice = 1024;
2688 if (!(session->flags & SN_ERR_MASK))
2689 session->flags |= why;
2690 task_wakeup(session->task, TASK_WOKEN_OTHER);
2691}
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02002692
Willy Tarreau8b22a712010-06-18 17:46:06 +02002693/************************************************************************/
2694/* All supported ACL keywords must be declared here. */
2695/************************************************************************/
2696
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002697/* Returns a pointer to a stkctr depending on the fetch keyword name.
2698 * It is designed to be called as sc[0-9]_* sc_* or src_* exclusively.
Willy Tarreaua65536c2013-07-22 22:40:11 +02002699 * sc[0-9]_* will return a pointer to the respective field in the
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002700 * session <l4>. sc_* requires an UINT argument specifying the stick
2701 * counter number. src_* will fill a locally allocated structure with
Willy Tarreaua65536c2013-07-22 22:40:11 +02002702 * the table and entry corresponding to what is specified with src_*.
Willy Tarreau0f791d42013-07-23 19:56:43 +02002703 * NULL may be returned if the designated stkctr is not tracked. For
2704 * the sc_* and sc[0-9]_* forms, an optional table argument may be
2705 * passed. When present, the currently tracked key is then looked up
2706 * in the specified table instead of the current table. The purpose is
2707 * to be able to convery multiple values per key (eg: have gpc0 from
2708 * multiple tables).
Willy Tarreaua65536c2013-07-22 22:40:11 +02002709 */
2710static struct stkctr *
2711smp_fetch_sc_stkctr(struct session *l4, const struct arg *args, const char *kw)
2712{
2713 static struct stkctr stkctr;
Willy Tarreau6a0b6bd2014-04-09 13:25:42 +02002714 struct stksess *stksess;
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002715 unsigned int num = kw[2] - '0';
Willy Tarreau0f791d42013-07-23 19:56:43 +02002716 int arg = 0;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002717
Willy Tarreau0f791d42013-07-23 19:56:43 +02002718 if (num == '_' - '0') {
2719 /* sc_* variant, args[0] = ctr# (mandatory) */
2720 num = args[arg++].data.uint;
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002721 if (num >= MAX_SESS_STKCTR)
2722 return NULL;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002723 }
Willy Tarreau0f791d42013-07-23 19:56:43 +02002724 else if (num > 9) { /* src_* variant, args[0] = table */
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002725 struct stktable_key *key;
2726 struct connection *conn = objt_conn(l4->si[0].end);
2727
2728 if (!conn)
2729 return NULL;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002730
Thierry FOURNIER74c219d2014-04-14 14:35:40 +02002731 key = addr_to_stktable_key(&conn->addr.from, args->data.prx->table.type);
Willy Tarreaua65536c2013-07-22 22:40:11 +02002732 if (!key)
2733 return NULL;
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002734
Willy Tarreaua65536c2013-07-22 22:40:11 +02002735 stkctr.table = &args->data.prx->table;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002736 stkctr_set_entry(&stkctr, stktable_lookup_key(stkctr.table, key));
Willy Tarreaua65536c2013-07-22 22:40:11 +02002737 return &stkctr;
2738 }
Willy Tarreau0f791d42013-07-23 19:56:43 +02002739
2740 /* Here, <num> contains the counter number from 0 to 9 for
2741 * the sc[0-9]_ form, or even higher using sc_(num) if needed.
2742 * args[arg] is the first optional argument.
2743 */
Willy Tarreau6a0b6bd2014-04-09 13:25:42 +02002744 stksess = stkctr_entry(&l4->stkctr[num]);
2745 if (!stksess)
2746 return NULL;
2747
Willy Tarreau0f791d42013-07-23 19:56:43 +02002748 if (unlikely(args[arg].type == ARGT_TAB)) {
2749 /* an alternate table was specified, let's look up the same key there */
2750 stkctr.table = &args[arg].data.prx->table;
Willy Tarreau6a0b6bd2014-04-09 13:25:42 +02002751 stkctr_set_entry(&stkctr, stktable_lookup(stkctr.table, stksess));
Willy Tarreau0f791d42013-07-23 19:56:43 +02002752 return &stkctr;
2753 }
Willy Tarreau6a0b6bd2014-04-09 13:25:42 +02002754 return &l4->stkctr[num];
Willy Tarreaua65536c2013-07-22 22:40:11 +02002755}
2756
Willy Tarreau88821242013-07-22 18:29:29 +02002757/* set return a boolean indicating if the requested session counter is
2758 * currently being tracked or not.
2759 * Supports being called as "sc[0-9]_tracked" only.
2760 */
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002761static int
Willy Tarreau88821242013-07-22 18:29:29 +02002762smp_fetch_sc_tracked(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02002763 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002764{
2765 smp->flags = SMP_F_VOL_TEST;
2766 smp->type = SMP_T_BOOL;
Thierry FOURNIERd988f212014-04-15 01:15:52 +02002767 smp->data.uint = !!smp_fetch_sc_stkctr(l4, args, kw);
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002768 return 1;
2769}
2770
Willy Tarreau30b20462013-07-22 19:46:52 +02002771/* set <smp> to the General Purpose Counter 0 value from the session's tracked
2772 * frontend counters or from the src.
2773 * Supports being called as "sc[0-9]_get_gpc0" or "src_get_gpc0" only. Value
2774 * zero is returned if the key is new.
2775 */
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002776static int
Willy Tarreau30b20462013-07-22 19:46:52 +02002777smp_fetch_sc_get_gpc0(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2778 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002779{
Willy Tarreau30b20462013-07-22 19:46:52 +02002780 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2781
2782 if (!stkctr)
2783 return 0;
2784
Willy Tarreau37406352012-04-23 16:16:37 +02002785 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002786 smp->type = SMP_T_UINT;
2787 smp->data.uint = 0;
Willy Tarreau30b20462013-07-22 19:46:52 +02002788
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002789 if (stkctr_entry(stkctr) != NULL) {
2790 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0);
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002791 if (!ptr)
2792 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002793 smp->data.uint = stktable_data_cast(ptr, gpc0);
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002794 }
2795 return 1;
2796}
2797
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002798/* set <smp> to the General Purpose Counter 0's event rate from the session's
2799 * tracked frontend counters or from the src.
2800 * Supports being called as "sc[0-9]_gpc0_rate" or "src_gpc0_rate" only.
2801 * Value zero is returned if the key is new.
2802 */
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002803static int
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002804smp_fetch_sc_gpc0_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2805 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002806{
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002807 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2808
2809 if (!stkctr)
2810 return 0;
2811
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002812 smp->flags = SMP_F_VOL_TEST;
2813 smp->type = SMP_T_UINT;
2814 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002815 if (stkctr_entry(stkctr) != NULL) {
2816 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0_RATE);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002817 if (!ptr)
2818 return 0; /* parameter not stored */
2819 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, gpc0_rate),
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002820 stkctr->table->data_arg[STKTABLE_DT_GPC0_RATE].u);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002821 }
2822 return 1;
2823}
2824
Willy Tarreau710d38c2013-07-23 00:07:04 +02002825/* Increment the General Purpose Counter 0 value from the session's tracked
2826 * frontend counters and return it into temp integer.
2827 * Supports being called as "sc[0-9]_inc_gpc0" or "src_inc_gpc0" only.
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002828 */
2829static int
Willy Tarreau710d38c2013-07-23 00:07:04 +02002830smp_fetch_sc_inc_gpc0(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2831 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002832{
Willy Tarreau710d38c2013-07-23 00:07:04 +02002833 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2834
2835 if (!stkctr)
2836 return 0;
2837
Willy Tarreau37406352012-04-23 16:16:37 +02002838 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002839 smp->type = SMP_T_UINT;
2840 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002841 if (stkctr_entry(stkctr) != NULL) {
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002842 void *ptr;
2843
2844 /* First, update gpc0_rate if it's tracked. Second, update its
2845 * gpc0 if tracked. Returns gpc0's value otherwise the curr_ctr.
2846 */
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002847 ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0_RATE);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002848 if (ptr) {
2849 update_freq_ctr_period(&stktable_data_cast(ptr, gpc0_rate),
Willy Tarreau710d38c2013-07-23 00:07:04 +02002850 stkctr->table->data_arg[STKTABLE_DT_GPC0_RATE].u, 1);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002851 smp->data.uint = (&stktable_data_cast(ptr, gpc0_rate))->curr_ctr;
2852 }
2853
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002854 ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002855 if (ptr)
2856 smp->data.uint = ++stktable_data_cast(ptr, gpc0);
2857
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002858 }
2859 return 1;
2860}
2861
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002862/* Clear the General Purpose Counter 0 value from the session's tracked
2863 * frontend counters and return its previous value into temp integer.
2864 * Supports being called as "sc[0-9]_clr_gpc0" or "src_clr_gpc0" only.
Willy Tarreauf73cd112011-08-13 01:45:16 +02002865 */
2866static int
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002867smp_fetch_sc_clr_gpc0(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2868 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauf73cd112011-08-13 01:45:16 +02002869{
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002870 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2871
2872 if (!stkctr)
2873 return 0;
2874
Willy Tarreau37406352012-04-23 16:16:37 +02002875 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002876 smp->type = SMP_T_UINT;
2877 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002878 if (stkctr_entry(stkctr) != NULL) {
2879 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0);
Willy Tarreauf73cd112011-08-13 01:45:16 +02002880 if (!ptr)
2881 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002882 smp->data.uint = stktable_data_cast(ptr, gpc0);
Willy Tarreauf73cd112011-08-13 01:45:16 +02002883 stktable_data_cast(ptr, gpc0) = 0;
2884 }
2885 return 1;
2886}
2887
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002888/* set <smp> to the cumulated number of connections from the session's tracked
2889 * frontend counters. Supports being called as "sc[0-9]_conn_cnt" or
2890 * "src_conn_cnt" only.
2891 */
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002892static int
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002893smp_fetch_sc_conn_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2894 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002895{
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002896 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2897
2898 if (!stkctr)
2899 return 0;
2900
Willy Tarreau37406352012-04-23 16:16:37 +02002901 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002902 smp->type = SMP_T_UINT;
2903 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002904 if (stkctr_entry(stkctr) != NULL) {
2905 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_CONN_CNT);
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002906 if (!ptr)
2907 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002908 smp->data.uint = stktable_data_cast(ptr, conn_cnt);
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002909 }
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002910 return 1;
2911}
2912
Willy Tarreauc8c65702013-07-23 15:09:35 +02002913/* set <smp> to the connection rate from the session's tracked frontend
2914 * counters. Supports being called as "sc[0-9]_conn_rate" or "src_conn_rate"
2915 * only.
2916 */
Willy Tarreau91c43d72010-06-20 11:19:22 +02002917static int
Willy Tarreauc8c65702013-07-23 15:09:35 +02002918smp_fetch_sc_conn_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2919 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau91c43d72010-06-20 11:19:22 +02002920{
Willy Tarreauc8c65702013-07-23 15:09:35 +02002921 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2922
2923 if (!stkctr)
2924 return 0;
2925
Willy Tarreau37406352012-04-23 16:16:37 +02002926 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002927 smp->type = SMP_T_UINT;
2928 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002929 if (stkctr_entry(stkctr) != NULL) {
2930 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_CONN_RATE);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002931 if (!ptr)
2932 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002933 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, conn_rate),
Willy Tarreauc8c65702013-07-23 15:09:35 +02002934 stkctr->table->data_arg[STKTABLE_DT_CONN_RATE].u);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002935 }
2936 return 1;
2937}
2938
Willy Tarreaua5e37562011-12-16 17:06:15 +01002939/* set temp integer to the number of connections from the session's source address
Willy Tarreau8b22a712010-06-18 17:46:06 +02002940 * in the table pointed to by expr, after updating it.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02002941 * Accepts exactly 1 argument of type table.
Willy Tarreau8b22a712010-06-18 17:46:06 +02002942 */
2943static int
Willy Tarreau281c7992013-01-08 01:23:27 +01002944smp_fetch_src_updt_conn_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02002945 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau8b22a712010-06-18 17:46:06 +02002946{
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002947 struct connection *conn = objt_conn(l4->si[0].end);
Willy Tarreau8b22a712010-06-18 17:46:06 +02002948 struct stksess *ts;
2949 struct stktable_key *key;
2950 void *ptr;
2951
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002952 if (!conn)
2953 return 0;
2954
Thierry FOURNIER74c219d2014-04-14 14:35:40 +02002955 key = addr_to_stktable_key(&conn->addr.from, px->table.type);
Willy Tarreau8b22a712010-06-18 17:46:06 +02002956 if (!key)
David du Colombier4f92d322011-03-24 11:09:31 +01002957 return 0;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002958
Willy Tarreau24e32d82012-04-23 23:55:44 +02002959 px = args->data.prx;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002960
Willy Tarreau1f7e9252010-06-20 12:27:21 +02002961 if ((ts = stktable_update_key(&px->table, key)) == NULL)
2962 /* entry does not exist and could not be created */
2963 return 0;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002964
2965 ptr = stktable_data_ptr(&px->table, ts, STKTABLE_DT_CONN_CNT);
2966 if (!ptr)
2967 return 0; /* parameter not stored in this table */
2968
Willy Tarreauf853c462012-04-23 18:53:56 +02002969 smp->type = SMP_T_UINT;
2970 smp->data.uint = ++stktable_data_cast(ptr, conn_cnt);
Willy Tarreau37406352012-04-23 16:16:37 +02002971 smp->flags = SMP_F_VOL_TEST;
Willy Tarreau8b22a712010-06-18 17:46:06 +02002972 return 1;
2973}
2974
Willy Tarreauf44a5532013-07-23 15:17:53 +02002975/* set <smp> to the number of concurrent connections from the session's tracked
2976 * frontend counters. Supports being called as "sc[0-9]_conn_cur" or
2977 * "src_conn_cur" only.
2978 */
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002979static int
Willy Tarreauf44a5532013-07-23 15:17:53 +02002980smp_fetch_sc_conn_cur(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2981 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002982{
Willy Tarreauf44a5532013-07-23 15:17:53 +02002983 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2984
2985 if (!stkctr)
2986 return 0;
2987
Willy Tarreau37406352012-04-23 16:16:37 +02002988 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002989 smp->type = SMP_T_UINT;
2990 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002991 if (stkctr_entry(stkctr) != NULL) {
2992 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_CONN_CUR);
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002993 if (!ptr)
2994 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002995 smp->data.uint = stktable_data_cast(ptr, conn_cur);
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02002996 }
2997 return 1;
2998}
2999
Willy Tarreau20843082013-07-23 15:35:33 +02003000/* set <smp> to the cumulated number of sessions from the session's tracked
3001 * frontend counters. Supports being called as "sc[0-9]_sess_cnt" or
3002 * "src_sess_cnt" only.
3003 */
Willy Tarreauf4d17d92010-06-18 22:10:12 +02003004static int
Willy Tarreau20843082013-07-23 15:35:33 +02003005smp_fetch_sc_sess_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3006 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauf4d17d92010-06-18 22:10:12 +02003007{
Willy Tarreau20843082013-07-23 15:35:33 +02003008 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3009
3010 if (!stkctr)
3011 return 0;
3012
Willy Tarreau37406352012-04-23 16:16:37 +02003013 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003014 smp->type = SMP_T_UINT;
3015 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003016 if (stkctr_entry(stkctr) != NULL) {
3017 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_SESS_CNT);
Willy Tarreauf4d17d92010-06-18 22:10:12 +02003018 if (!ptr)
3019 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003020 smp->data.uint = stktable_data_cast(ptr, sess_cnt);
Willy Tarreauf4d17d92010-06-18 22:10:12 +02003021 }
3022 return 1;
3023}
3024
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02003025/* set <smp> to the session rate from the session's tracked frontend counters.
3026 * Supports being called as "sc[0-9]_sess_rate" or "src_sess_rate" only.
3027 */
Willy Tarreau91c43d72010-06-20 11:19:22 +02003028static int
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02003029smp_fetch_sc_sess_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3030 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau91c43d72010-06-20 11:19:22 +02003031{
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02003032 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3033
3034 if (!stkctr)
3035 return 0;
3036
Willy Tarreau37406352012-04-23 16:16:37 +02003037 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003038 smp->type = SMP_T_UINT;
3039 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003040 if (stkctr_entry(stkctr) != NULL) {
3041 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_SESS_RATE);
Willy Tarreau91c43d72010-06-20 11:19:22 +02003042 if (!ptr)
3043 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003044 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, sess_rate),
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02003045 stkctr->table->data_arg[STKTABLE_DT_SESS_RATE].u);
Willy Tarreau91c43d72010-06-20 11:19:22 +02003046 }
3047 return 1;
3048}
3049
Willy Tarreau91200da2013-07-23 15:55:19 +02003050/* set <smp> to the cumulated number of HTTP requests from the session's tracked
3051 * frontend counters. Supports being called as "sc[0-9]_http_req_cnt" or
3052 * "src_http_req_cnt" only.
3053 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02003054static int
Willy Tarreau91200da2013-07-23 15:55:19 +02003055smp_fetch_sc_http_req_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3056 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02003057{
Willy Tarreau91200da2013-07-23 15:55:19 +02003058 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3059
3060 if (!stkctr)
3061 return 0;
3062
Willy Tarreau37406352012-04-23 16:16:37 +02003063 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003064 smp->type = SMP_T_UINT;
3065 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003066 if (stkctr_entry(stkctr) != NULL) {
3067 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_HTTP_REQ_CNT);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003068 if (!ptr)
3069 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003070 smp->data.uint = stktable_data_cast(ptr, http_req_cnt);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003071 }
3072 return 1;
3073}
3074
Willy Tarreaucf477632013-07-23 16:04:37 +02003075/* set <smp> to the HTTP request rate from the session's tracked frontend
3076 * counters. Supports being called as "sc[0-9]_http_req_rate" or
3077 * "src_http_req_rate" only.
3078 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02003079static int
Willy Tarreaucf477632013-07-23 16:04:37 +02003080smp_fetch_sc_http_req_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3081 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02003082{
Willy Tarreaucf477632013-07-23 16:04:37 +02003083 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3084
3085 if (!stkctr)
3086 return 0;
3087
Willy Tarreau37406352012-04-23 16:16:37 +02003088 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003089 smp->type = SMP_T_UINT;
3090 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003091 if (stkctr_entry(stkctr) != NULL) {
3092 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_HTTP_REQ_RATE);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003093 if (!ptr)
3094 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003095 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, http_req_rate),
Willy Tarreaucf477632013-07-23 16:04:37 +02003096 stkctr->table->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003097 }
3098 return 1;
3099}
3100
Willy Tarreau30d07c32013-07-23 16:45:38 +02003101/* set <smp> to the cumulated number of HTTP requests errors from the session's
3102 * tracked frontend counters. Supports being called as "sc[0-9]_http_err_cnt" or
3103 * "src_http_err_cnt" only.
3104 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02003105static int
Willy Tarreau30d07c32013-07-23 16:45:38 +02003106smp_fetch_sc_http_err_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3107 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02003108{
Willy Tarreau30d07c32013-07-23 16:45:38 +02003109 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3110
3111 if (!stkctr)
3112 return 0;
3113
Willy Tarreau37406352012-04-23 16:16:37 +02003114 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003115 smp->type = SMP_T_UINT;
3116 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003117 if (stkctr_entry(stkctr) != NULL) {
3118 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_HTTP_ERR_CNT);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003119 if (!ptr)
3120 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003121 smp->data.uint = stktable_data_cast(ptr, http_err_cnt);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003122 }
3123 return 1;
3124}
3125
Willy Tarreau9daf2622013-07-23 16:48:54 +02003126/* set <smp> to the HTTP request error rate from the session's tracked frontend
3127 * counters. Supports being called as "sc[0-9]_http_err_rate" or
3128 * "src_http_err_rate" only.
3129 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02003130static int
Willy Tarreau9daf2622013-07-23 16:48:54 +02003131smp_fetch_sc_http_err_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3132 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02003133{
Willy Tarreau9daf2622013-07-23 16:48:54 +02003134 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3135
3136 if (!stkctr)
3137 return 0;
3138
Willy Tarreau37406352012-04-23 16:16:37 +02003139 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003140 smp->type = SMP_T_UINT;
3141 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003142 if (stkctr_entry(stkctr) != NULL) {
3143 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_HTTP_ERR_RATE);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003144 if (!ptr)
3145 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003146 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, http_err_rate),
Willy Tarreau9daf2622013-07-23 16:48:54 +02003147 stkctr->table->data_arg[STKTABLE_DT_HTTP_ERR_RATE].u);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003148 }
3149 return 1;
3150}
3151
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003152/* set <smp> to the number of kbytes received from clients, as found in the
3153 * session's tracked frontend counters. Supports being called as
3154 * "sc[0-9]_kbytes_in" or "src_kbytes_in" only.
3155 */
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003156static int
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003157smp_fetch_sc_kbytes_in(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3158 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003159{
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003160 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3161
3162 if (!stkctr)
3163 return 0;
3164
Willy Tarreau37406352012-04-23 16:16:37 +02003165 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003166 smp->type = SMP_T_UINT;
3167 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003168 if (stkctr_entry(stkctr) != NULL) {
3169 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_IN_CNT);
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003170 if (!ptr)
3171 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003172 smp->data.uint = stktable_data_cast(ptr, bytes_in_cnt) >> 10;
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003173 }
3174 return 1;
3175}
3176
Willy Tarreau613fe992013-07-23 17:39:19 +02003177/* set <smp> to the data rate received from clients in bytes/s, as found
3178 * in the session's tracked frontend counters. Supports being called as
3179 * "sc[0-9]_bytes_in_rate" or "src_bytes_in_rate" only.
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003180 */
3181static int
Willy Tarreau613fe992013-07-23 17:39:19 +02003182smp_fetch_sc_bytes_in_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3183 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003184{
Willy Tarreau613fe992013-07-23 17:39:19 +02003185 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3186
3187 if (!stkctr)
3188 return 0;
3189
Willy Tarreau37406352012-04-23 16:16:37 +02003190 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003191 smp->type = SMP_T_UINT;
3192 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003193 if (stkctr_entry(stkctr) != NULL) {
3194 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_IN_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003195 if (!ptr)
3196 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003197 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, bytes_in_rate),
Willy Tarreau613fe992013-07-23 17:39:19 +02003198 stkctr->table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003199 }
3200 return 1;
3201}
3202
Willy Tarreau53aea102013-07-23 17:39:02 +02003203/* set <smp> to the number of kbytes sent to clients, as found in the
3204 * session's tracked frontend counters. Supports being called as
3205 * "sc[0-9]_kbytes_out" or "src_kbytes_out" only.
3206 */
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003207static int
Willy Tarreau53aea102013-07-23 17:39:02 +02003208smp_fetch_sc_kbytes_out(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3209 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003210{
Willy Tarreau53aea102013-07-23 17:39:02 +02003211 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3212
3213 if (!stkctr)
3214 return 0;
3215
Willy Tarreau37406352012-04-23 16:16:37 +02003216 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003217 smp->type = SMP_T_UINT;
3218 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003219 if (stkctr_entry(stkctr) != NULL) {
3220 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_OUT_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003221 if (!ptr)
3222 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003223 smp->data.uint = stktable_data_cast(ptr, bytes_out_cnt) >> 10;
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003224 }
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003225 return 1;
3226}
3227
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003228/* set <smp> to the data rate sent to clients in bytes/s, as found in the
3229 * session's tracked frontend counters. Supports being called as
3230 * "sc[0-9]_bytes_out_rate" or "src_bytes_out_rate" only.
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003231 */
3232static int
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003233smp_fetch_sc_bytes_out_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3234 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003235{
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003236 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3237
3238 if (!stkctr)
3239 return 0;
3240
Willy Tarreau37406352012-04-23 16:16:37 +02003241 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003242 smp->type = SMP_T_UINT;
3243 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003244 if (stkctr_entry(stkctr) != NULL) {
3245 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_OUT_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003246 if (!ptr)
3247 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003248 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, bytes_out_rate),
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003249 stkctr->table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003250 }
3251 return 1;
3252}
3253
Willy Tarreau563eef42013-07-23 18:32:02 +02003254/* set <smp> to the number of active trackers on the SC entry in the session's
3255 * tracked frontend counters. Supports being called as "sc[0-9]_trackers" only.
3256 */
Willy Tarreau2406db42012-12-09 12:16:43 +01003257static int
Willy Tarreau563eef42013-07-23 18:32:02 +02003258smp_fetch_sc_trackers(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02003259 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau2406db42012-12-09 12:16:43 +01003260{
Willy Tarreau563eef42013-07-23 18:32:02 +02003261 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
Willy Tarreau2406db42012-12-09 12:16:43 +01003262
Willy Tarreau563eef42013-07-23 18:32:02 +02003263 if (!stkctr)
Willy Tarreau2406db42012-12-09 12:16:43 +01003264 return 0;
3265
Willy Tarreau563eef42013-07-23 18:32:02 +02003266 smp->flags = SMP_F_VOL_TEST;
3267 smp->type = SMP_T_UINT;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003268 smp->data.uint = stkctr_entry(stkctr)->ref_cnt;
Willy Tarreau563eef42013-07-23 18:32:02 +02003269 return 1;
Willy Tarreaue25c9172013-05-28 18:32:20 +02003270}
3271
Willy Tarreau34db1082012-04-19 17:16:54 +02003272/* set temp integer to the number of used entries in the table pointed to by expr.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02003273 * Accepts exactly 1 argument of type table.
Willy Tarreau34db1082012-04-19 17:16:54 +02003274 */
Willy Tarreauc735a072011-03-29 00:57:02 +02003275static int
Willy Tarreau281c7992013-01-08 01:23:27 +01003276smp_fetch_table_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02003277 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc735a072011-03-29 00:57:02 +02003278{
Willy Tarreau37406352012-04-23 16:16:37 +02003279 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003280 smp->type = SMP_T_UINT;
Willy Tarreau24e32d82012-04-23 23:55:44 +02003281 smp->data.uint = args->data.prx->table.current;
Willy Tarreauc735a072011-03-29 00:57:02 +02003282 return 1;
3283}
3284
Willy Tarreau34db1082012-04-19 17:16:54 +02003285/* set temp integer to the number of free entries in the table pointed to by expr.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02003286 * Accepts exactly 1 argument of type table.
Willy Tarreau34db1082012-04-19 17:16:54 +02003287 */
Willy Tarreauc735a072011-03-29 00:57:02 +02003288static int
Willy Tarreau281c7992013-01-08 01:23:27 +01003289smp_fetch_table_avl(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02003290 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc735a072011-03-29 00:57:02 +02003291{
Willy Tarreau24e32d82012-04-23 23:55:44 +02003292 px = args->data.prx;
Willy Tarreau37406352012-04-23 16:16:37 +02003293 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003294 smp->type = SMP_T_UINT;
3295 smp->data.uint = px->table.size - px->table.current;
Willy Tarreauc735a072011-03-29 00:57:02 +02003296 return 1;
3297}
Willy Tarreau8b22a712010-06-18 17:46:06 +02003298
Willy Tarreau61612d42012-04-19 18:42:05 +02003299/* Note: must not be declared <const> as its list will be overwritten.
3300 * Please take care of keeping this list alphabetically sorted.
3301 */
Willy Tarreaudc13c112013-06-21 23:16:39 +02003302static struct acl_kw_list acl_kws = {ILH, {
Willy Tarreau281c7992013-01-08 01:23:27 +01003303 { /* END */ },
Willy Tarreau8b22a712010-06-18 17:46:06 +02003304}};
3305
Willy Tarreau281c7992013-01-08 01:23:27 +01003306/* Note: must not be declared <const> as its list will be overwritten.
3307 * Please take care of keeping this list alphabetically sorted.
3308 */
Willy Tarreaudc13c112013-06-21 23:16:39 +02003309static struct sample_fetch_kw_list smp_fetch_keywords = {ILH, {
Willy Tarreau0f791d42013-07-23 19:56:43 +02003310 { "sc_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3311 { "sc_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3312 { "sc_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3313 { "sc_conn_cnt", smp_fetch_sc_conn_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3314 { "sc_conn_cur", smp_fetch_sc_conn_cur, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3315 { "sc_conn_rate", smp_fetch_sc_conn_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3316 { "sc_get_gpc0", smp_fetch_sc_get_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3317 { "sc_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3318 { "sc_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3319 { "sc_http_err_rate", smp_fetch_sc_http_err_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3320 { "sc_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3321 { "sc_http_req_rate", smp_fetch_sc_http_req_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3322 { "sc_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3323 { "sc_kbytes_in", smp_fetch_sc_kbytes_in, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3324 { "sc_kbytes_out", smp_fetch_sc_kbytes_out, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3325 { "sc_sess_cnt", smp_fetch_sc_sess_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3326 { "sc_sess_rate", smp_fetch_sc_sess_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3327 { "sc_tracked", smp_fetch_sc_tracked, ARG2(1,UINT,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3328 { "sc_trackers", smp_fetch_sc_trackers, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3329 { "sc0_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3330 { "sc0_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3331 { "sc0_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3332 { "sc0_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3333 { "sc0_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3334 { "sc0_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3335 { "sc0_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3336 { "sc0_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3337 { "sc0_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3338 { "sc0_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3339 { "sc0_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3340 { "sc0_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3341 { "sc0_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3342 { "sc0_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3343 { "sc0_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3344 { "sc0_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3345 { "sc0_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3346 { "sc0_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3347 { "sc0_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3348 { "sc1_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3349 { "sc1_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3350 { "sc1_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3351 { "sc1_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3352 { "sc1_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3353 { "sc1_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3354 { "sc1_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3355 { "sc1_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3356 { "sc1_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3357 { "sc1_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3358 { "sc1_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3359 { "sc1_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3360 { "sc1_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3361 { "sc1_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3362 { "sc1_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3363 { "sc1_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3364 { "sc1_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3365 { "sc1_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3366 { "sc1_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3367 { "sc2_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3368 { "sc2_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3369 { "sc2_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3370 { "sc2_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3371 { "sc2_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3372 { "sc2_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3373 { "sc2_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3374 { "sc2_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3375 { "sc2_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3376 { "sc2_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3377 { "sc2_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3378 { "sc2_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3379 { "sc2_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3380 { "sc2_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3381 { "sc2_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3382 { "sc2_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3383 { "sc2_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3384 { "sc2_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3385 { "sc2_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3386 { "src_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3387 { "src_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3388 { "src_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3389 { "src_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3390 { "src_conn_cur", smp_fetch_sc_conn_cur, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3391 { "src_conn_rate", smp_fetch_sc_conn_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3392 { "src_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3393 { "src_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3394 { "src_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3395 { "src_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3396 { "src_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3397 { "src_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3398 { "src_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3399 { "src_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3400 { "src_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3401 { "src_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3402 { "src_sess_rate", smp_fetch_sc_sess_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3403 { "src_updt_conn_cnt", smp_fetch_src_updt_conn_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3404 { "table_avl", smp_fetch_table_avl, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3405 { "table_cnt", smp_fetch_table_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
Willy Tarreau281c7992013-01-08 01:23:27 +01003406 { /* END */ },
3407}};
3408
Willy Tarreau8b22a712010-06-18 17:46:06 +02003409__attribute__((constructor))
3410static void __session_init(void)
3411{
Willy Tarreau281c7992013-01-08 01:23:27 +01003412 sample_register_fetches(&smp_fetch_keywords);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003413 acl_register_keywords(&acl_kws);
3414}
3415
Willy Tarreaubaaee002006-06-26 02:48:02 +02003416/*
3417 * Local variables:
3418 * c-indent-level: 8
3419 * c-basic-offset: 8
3420 * End:
3421 */