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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.
Willy Tarreau33a14e52014-06-13 17:49:40 +0200882 * If the connection is not persistent, the balancing algorithm is not
883 * determinist (round robin) and there is more than one active server,
884 * we accept to perform an immediate redispatch without waiting since
885 * we don't care about this particular server.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100886 */
Willy Tarreau33a14e52014-06-13 17:49:40 +0200887 if (objt_server(s->target) &&
888 (si->conn_retries == 0 ||
889 (!(s->flags & SN_DIRECT) && s->be->srv_act > 1 &&
890 ((s->be->lbprm.algo & BE_LB_KIND) == BE_LB_KIND_RR))) &&
Willy Tarreau4de91492010-01-22 19:10:05 +0100891 s->be->options & PR_O_REDISP && !(s->flags & SN_FORCE_PRST)) {
Willy Tarreaub89cfca2010-12-29 14:32:28 +0100892 sess_change_server(s, NULL);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100893 if (may_dequeue_tasks(objt_server(s->target), s->be))
894 process_srv_queue(objt_server(s->target));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100895
896 s->flags &= ~(SN_DIRECT | SN_ASSIGNED | SN_ADDR_SET);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100897 si->state = SI_ST_REQ;
898 } else {
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100899 if (objt_server(s->target))
900 objt_server(s->target)->counters.retries++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100901 s->be->be_counters.retries++;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100902 si->state = SI_ST_ASS;
903 }
904
905 if (si->flags & SI_FL_ERR) {
906 /* The error was an asynchronous connection error, and we will
907 * likely have to retry connecting to the same server, most
908 * likely leading to the same result. To avoid this, we wait
Willy Tarreaub0290662014-06-13 17:04:44 +0200909 * MIN(one second, connect timeout) before retrying.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100910 */
911
Willy Tarreaub0290662014-06-13 17:04:44 +0200912 int delay = 1000;
913
914 if (s->be->timeout.connect && s->be->timeout.connect < delay)
915 delay = s->be->timeout.connect;
916
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100917 if (!si->err_type)
918 si->err_type = SI_ET_CONN_ERR;
919
Willy Tarreaudb6d0122014-06-13 17:40:15 +0200920 /* only wait when we're retrying on the same server */
921 if (si->state == SI_ST_ASS ||
922 (s->be->lbprm.algo & BE_LB_KIND) != BE_LB_KIND_RR ||
923 (s->be->srv_act <= 1)) {
924 si->state = SI_ST_TAR;
925 si->exp = tick_add(now_ms, MS_TO_TICKS(delay));
926 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100927 return 0;
928 }
929 return 0;
930}
931
932/*
933 * This function handles the transition between the SI_ST_CON state and the
Willy Tarreau85e7d002010-05-31 11:57:51 +0200934 * SI_ST_EST state. It must only be called after switching from SI_ST_CON (or
Willy Tarreau26d8c592012-05-07 18:12:14 +0200935 * SI_ST_INI) to SI_ST_EST, but only when a ->proto is defined.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100936 */
Simon Hormandec5be42011-06-08 09:19:07 +0900937static void sess_establish(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100938{
Willy Tarreau7421efb2012-07-02 15:11:27 +0200939 struct channel *req = si->ob;
940 struct channel *rep = si->ib;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100941
Willy Tarreau0e37f1c2013-12-31 23:06:46 +0100942 /* First, centralize the timers information */
943 s->logs.t_connect = tv_ms_elapsed(&s->logs.tv_accept, &now);
944 si->exp = TICK_ETERNITY;
945
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100946 if (objt_server(s->target))
947 health_adjust(objt_server(s->target), HANA_STATUS_L4_OK);
Krzysztof Piotr Oledzki97f07b82009-12-15 22:31:24 +0100948
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100949 if (s->be->mode == PR_MODE_TCP) { /* let's allow immediate data connection in this case */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100950 /* if the user wants to log as soon as possible, without counting
951 * bytes from the server, then this is the right moment. */
Willy Tarreaud79a3b22012-12-28 09:40:16 +0100952 if (!LIST_ISEMPTY(&s->fe->logformat) && !(s->logs.logwait & LW_BYTES)) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100953 s->logs.t_close = s->logs.t_connect; /* to get a valid end date */
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100954 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100955 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100956 }
957 else {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100958 s->txn.rsp.msg_state = HTTP_MSG_RPBEFORE;
Willy Tarreaud81ca042013-12-31 22:33:13 +0100959 rep->flags |= CF_READ_DONTWAIT; /* a single read is enough to get response headers */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100960 }
961
Willy Tarreau4e5b8282009-08-16 22:57:50 +0200962 rep->analysers |= s->fe->fe_rsp_ana | s->be->be_rsp_ana;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +0200963 rep->flags |= CF_READ_ATTACHED; /* producer is now attached */
Willy Tarreau644c1012014-04-30 18:11:11 +0200964 if (req->flags & CF_WAKE_CONNECT) {
965 req->flags |= CF_WAKE_ONCE;
966 req->flags &= ~CF_WAKE_CONNECT;
967 }
Willy Tarreaub363a1f2013-10-01 10:45:07 +0200968 if (objt_conn(si->end)) {
Willy Tarreaud04e8582010-05-31 12:31:35 +0200969 /* real connections have timeouts */
970 req->wto = s->be->timeout.server;
971 rep->rto = s->be->timeout.server;
972 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100973 req->wex = TICK_ETERNITY;
974}
975
976/* Update stream interface status for input states SI_ST_ASS, SI_ST_QUE, SI_ST_TAR.
977 * Other input states are simply ignored.
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +0100978 * Possible output states are SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ, SI_ST_CON
979 * and SI_ST_EST. Flags must have previously been updated for timeouts and other
980 * conditions.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100981 */
Simon Hormandec5be42011-06-08 09:19:07 +0900982static void sess_update_stream_int(struct session *s, struct stream_interface *si)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +0100983{
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100984 struct server *srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +0100985
Willy Tarreau02d6cfc2012-03-01 18:19:58 +0100986 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 +0100987 now_ms, __FUNCTION__,
988 s,
989 s->req, s->rep,
990 s->req->rex, s->rep->wex,
991 s->req->flags, s->rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +0200992 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 +0100993
994 if (si->state == SI_ST_ASS) {
995 /* Server assigned to connection request, we have to try to connect now */
996 int conn_err;
997
998 conn_err = connect_server(s);
Willy Tarreau3fdb3662012-11-12 00:42:33 +0100999 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01001000
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001001 if (conn_err == SN_ERR_NONE) {
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +01001002 /* state = SI_ST_CON or SI_ST_EST now */
Willy Tarreau827aee92011-03-10 16:55:02 +01001003 if (srv)
1004 srv_inc_sess_ctr(srv);
Bhaskar Maddalaa20cb852014-02-03 16:26:46 -05001005 if (srv)
1006 srv_set_sess_last(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001007 return;
1008 }
1009
1010 /* We have received a synchronous error. We might have to
1011 * abort, retry immediately or redispatch.
1012 */
1013 if (conn_err == SN_ERR_INTERNAL) {
1014 if (!si->err_type) {
1015 si->err_type = SI_ET_CONN_OTHER;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001016 }
1017
Willy Tarreau827aee92011-03-10 16:55:02 +01001018 if (srv)
1019 srv_inc_sess_ctr(srv);
1020 if (srv)
Bhaskar Maddalaa20cb852014-02-03 16:26:46 -05001021 srv_set_sess_last(srv);
1022 if (srv)
Willy Tarreau827aee92011-03-10 16:55:02 +01001023 srv->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001024 s->be->be_counters.failed_conns++;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001025
1026 /* release other sessions waiting for this server */
Willy Tarreaub89cfca2010-12-29 14:32:28 +01001027 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001028 if (may_dequeue_tasks(srv, s->be))
1029 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001030
1031 /* Failed and not retryable. */
Willy Tarreau73b013b2012-05-21 16:31:45 +02001032 si_shutr(si);
1033 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001034 si->ob->flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001035
1036 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1037
1038 /* no session was ever accounted for this server */
1039 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001040 if (s->srv_error)
1041 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001042 return;
1043 }
1044
1045 /* We are facing a retryable error, but we don't want to run a
1046 * turn-around now, as the problem is likely a source port
1047 * allocation problem, so we want to retry now.
1048 */
1049 si->state = SI_ST_CER;
1050 si->flags &= ~SI_FL_ERR;
1051 sess_update_st_cer(s, si);
1052 /* now si->state is one of SI_ST_CLO, SI_ST_TAR, SI_ST_ASS, SI_ST_REQ */
1053 return;
1054 }
1055 else if (si->state == SI_ST_QUE) {
1056 /* connection request was queued, check for any update */
1057 if (!s->pend_pos) {
1058 /* The connection is not in the queue anymore. Either
1059 * we have a server connection slot available and we
1060 * go directly to the assigned state, or we need to
1061 * load-balance first and go to the INI state.
1062 */
1063 si->exp = TICK_ETERNITY;
1064 if (unlikely(!(s->flags & SN_ASSIGNED)))
1065 si->state = SI_ST_REQ;
1066 else {
1067 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1068 si->state = SI_ST_ASS;
1069 }
1070 return;
1071 }
1072
1073 /* Connection request still in queue... */
1074 if (si->flags & SI_FL_EXP) {
1075 /* ... and timeout expired */
1076 si->exp = TICK_ETERNITY;
1077 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau827aee92011-03-10 16:55:02 +01001078 if (srv)
1079 srv->counters.failed_conns++;
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001080 s->be->be_counters.failed_conns++;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001081 si_shutr(si);
1082 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001083 si->ob->flags |= CF_WRITE_TIMEOUT;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001084 if (!si->err_type)
1085 si->err_type = SI_ET_QUEUE_TO;
1086 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001087 if (s->srv_error)
1088 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001089 return;
1090 }
1091
1092 /* Connection remains in queue, check if we have to abort it */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001093 if ((si->ob->flags & (CF_READ_ERROR)) ||
1094 ((si->ob->flags & CF_SHUTW_NOW) && /* empty and client aborted */
Willy Tarreau8e21bb92012-08-24 22:40:29 +02001095 (channel_is_empty(si->ob) || s->be->options & PR_O_ABRT_CLOSE))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001096 /* give up */
1097 si->exp = TICK_ETERNITY;
1098 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreau73b013b2012-05-21 16:31:45 +02001099 si_shutr(si);
1100 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001101 si->err_type |= SI_ET_QUEUE_ABRT;
1102 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001103 if (s->srv_error)
1104 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001105 return;
1106 }
1107
1108 /* Nothing changed */
1109 return;
1110 }
1111 else if (si->state == SI_ST_TAR) {
1112 /* Connection request might be aborted */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001113 if ((si->ob->flags & (CF_READ_ERROR)) ||
1114 ((si->ob->flags & CF_SHUTW_NOW) && /* empty and client aborted */
Willy Tarreau8e21bb92012-08-24 22:40:29 +02001115 (channel_is_empty(si->ob) || s->be->options & PR_O_ABRT_CLOSE))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001116 /* give up */
1117 si->exp = TICK_ETERNITY;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001118 si_shutr(si);
1119 si_shutw(si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001120 si->err_type |= SI_ET_CONN_ABRT;
1121 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001122 if (s->srv_error)
1123 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001124 return;
1125 }
1126
1127 if (!(si->flags & SI_FL_EXP))
1128 return; /* still in turn-around */
1129
1130 si->exp = TICK_ETERNITY;
1131
1132 /* we keep trying on the same server as long as the session is
1133 * marked "assigned".
1134 * FIXME: Should we force a redispatch attempt when the server is down ?
1135 */
1136 if (s->flags & SN_ASSIGNED)
1137 si->state = SI_ST_ASS;
1138 else
1139 si->state = SI_ST_REQ;
1140 return;
1141 }
1142}
1143
Simon Hormandec5be42011-06-08 09:19:07 +09001144/* Set correct session termination flags in case no analyser has done it. It
1145 * also counts a failed request if the server state has not reached the request
1146 * stage.
1147 */
1148static void sess_set_term_flags(struct session *s)
1149{
1150 if (!(s->flags & SN_FINST_MASK)) {
1151 if (s->si[1].state < SI_ST_REQ) {
1152
1153 s->fe->fe_counters.failed_req++;
1154 if (s->listener->counters)
1155 s->listener->counters->failed_req++;
1156
1157 s->flags |= SN_FINST_R;
1158 }
1159 else if (s->si[1].state == SI_ST_QUE)
1160 s->flags |= SN_FINST_Q;
1161 else if (s->si[1].state < SI_ST_EST)
1162 s->flags |= SN_FINST_C;
1163 else if (s->si[1].state == SI_ST_EST || s->si[1].prev_state == SI_ST_EST)
1164 s->flags |= SN_FINST_D;
1165 else
1166 s->flags |= SN_FINST_L;
1167 }
1168}
1169
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001170/* This function initiates a server connection request on a stream interface
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001171 * already in SI_ST_REQ state. Upon success, the state goes to SI_ST_ASS for
1172 * a real connection to a server, indicating that a server has been assigned,
1173 * or SI_ST_EST for a successful connection to an applet. It may also return
1174 * SI_ST_QUE, or SI_ST_CLO upon error.
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001175 */
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001176static void sess_prepare_conn_req(struct session *s, struct stream_interface *si)
1177{
1178 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 +01001179 now_ms, __FUNCTION__,
1180 s,
1181 s->req, s->rep,
1182 s->req->rex, s->rep->wex,
1183 s->req->flags, s->rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001184 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 +01001185
1186 if (si->state != SI_ST_REQ)
1187 return;
1188
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001189 if (unlikely(obj_type(s->target) == OBJ_TYPE_APPLET)) {
1190 /* the applet directly goes to the EST state */
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001191 struct appctx *appctx = objt_appctx(si->end);
1192
1193 if (!appctx || appctx->applet != __objt_applet(s->target))
1194 appctx = stream_int_register_handler(si, objt_applet(s->target));
1195
1196 if (!appctx) {
1197 /* No more memory, let's immediately abort. Force the
1198 * error code to ignore the ERR_LOCAL which is not a
1199 * real error.
1200 */
Willy Tarreau6bbb2f62013-12-09 17:14:23 +01001201 s->flags &= ~(SN_ERR_MASK | SN_FINST_MASK);
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001202
1203 si_shutr(si);
1204 si_shutw(si);
1205 si->ob->flags |= CF_WRITE_ERROR;
Willy Tarreau6bbb2f62013-12-09 17:14:23 +01001206 si->err_type = SI_ET_CONN_RES;
Willy Tarreau4384ddf2013-12-01 12:25:52 +01001207 si->state = SI_ST_CLO;
1208 if (s->srv_error)
1209 s->srv_error(s, si);
1210 return;
1211 }
1212
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001213 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001214 si->state = SI_ST_EST;
1215 si->err_type = SI_ET_NONE;
Willy Tarreaub9a551e2014-04-23 00:35:17 +02001216 be_set_sess_last(s->be);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01001217 /* let sess_establish() finish the job */
Willy Tarreaud84fb5e2013-11-30 09:06:53 +01001218 return;
1219 }
1220
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001221 /* Try to assign a server */
1222 if (srv_redispatch_connect(s) != 0) {
1223 /* We did not get a server. Either we queued the
1224 * connection request, or we encountered an error.
1225 */
1226 if (si->state == SI_ST_QUE)
1227 return;
1228
1229 /* we did not get any server, let's check the cause */
Willy Tarreau73b013b2012-05-21 16:31:45 +02001230 si_shutr(si);
1231 si_shutw(si);
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001232 si->ob->flags |= CF_WRITE_ERROR;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001233 if (!si->err_type)
1234 si->err_type = SI_ET_CONN_OTHER;
1235 si->state = SI_ST_CLO;
Willy Tarreau0cac36f2008-11-30 20:44:17 +01001236 if (s->srv_error)
1237 s->srv_error(s, si);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001238 return;
1239 }
1240
1241 /* The server is assigned */
1242 s->logs.t_queue = tv_ms_elapsed(&s->logs.tv_accept, &now);
1243 si->state = SI_ST_ASS;
Willy Tarreaub9a551e2014-04-23 00:35:17 +02001244 be_set_sess_last(s->be);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001245}
1246
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001247/* This stream analyser checks the switching rules and changes the backend
Willy Tarreau4de91492010-01-22 19:10:05 +01001248 * if appropriate. The default_backend rule is also considered, then the
1249 * target backend's forced persistence rules are also evaluated last if any.
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001250 * It returns 1 if the processing can continue on next analysers, or zero if it
1251 * either needs more data or wants to immediately abort the request.
1252 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001253static int process_switching_rules(struct session *s, struct channel *req, int an_bit)
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001254{
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001255 struct persist_rule *prst_rule;
Willy Tarreau4de91492010-01-22 19:10:05 +01001256
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001257 req->analysers &= ~an_bit;
1258 req->analyse_exp = TICK_ETERNITY;
1259
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001260 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 +02001261 now_ms, __FUNCTION__,
1262 s,
1263 req,
1264 req->rex, req->wex,
1265 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001266 req->buf->i,
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001267 req->analysers);
1268
1269 /* now check whether we have some switching rules for this request */
1270 if (!(s->flags & SN_BE_ASSIGNED)) {
1271 struct switching_rule *rule;
1272
1273 list_for_each_entry(rule, &s->fe->switching_rules, list) {
Willy Tarreauf51658d2014-04-23 01:21:56 +02001274 int ret = 1;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001275
Willy Tarreauf51658d2014-04-23 01:21:56 +02001276 if (rule->cond) {
1277 ret = acl_exec_cond(rule->cond, s->fe, s, &s->txn, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
1278 ret = acl_pass(ret);
1279 if (rule->cond->pol == ACL_COND_UNLESS)
1280 ret = !ret;
1281 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001282
1283 if (ret) {
Bertrand Jacquin702d44f2013-11-19 11:43:06 +01001284 /* If the backend name is dynamic, try to resolve the name.
1285 * If we can't resolve the name, or if any error occurs, break
1286 * the loop and fallback to the default backend.
1287 */
1288 struct proxy *backend;
1289
1290 if (rule->dynamic) {
1291 struct chunk *tmp = get_trash_chunk();
1292 if (!build_logline(s, tmp->str, tmp->size, &rule->be.expr))
1293 break;
1294 backend = findproxy(tmp->str, PR_CAP_BE);
1295 if (!backend)
1296 break;
1297 }
1298 else
1299 backend = rule->be.backend;
1300
1301 if (!session_set_backend(s, backend))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001302 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001303 break;
1304 }
1305 }
1306
1307 /* To ensure correct connection accounting on the backend, we
1308 * have to assign one if it was not set (eg: a listen). This
1309 * measure also takes care of correctly setting the default
1310 * backend if any.
1311 */
1312 if (!(s->flags & SN_BE_ASSIGNED))
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001313 if (!session_set_backend(s, s->fe->defbe.be ? s->fe->defbe.be : s->be))
1314 goto sw_failed;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001315 }
1316
Willy Tarreaufb356202010-08-03 14:02:05 +02001317 /* we don't want to run the TCP or HTTP filters again if the backend has not changed */
1318 if (s->fe == s->be) {
1319 s->req->analysers &= ~AN_REQ_INSPECT_BE;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001320 s->req->analysers &= ~AN_REQ_HTTP_PROCESS_BE;
Willy Tarreaufb356202010-08-03 14:02:05 +02001321 }
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001322
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001323 /* 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 +01001324 * persistence rule, and report that in the session.
1325 */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001326 list_for_each_entry(prst_rule, &s->be->persist_rules, list) {
Willy Tarreau4de91492010-01-22 19:10:05 +01001327 int ret = 1;
1328
1329 if (prst_rule->cond) {
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001330 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 +01001331 ret = acl_pass(ret);
1332 if (prst_rule->cond->pol == ACL_COND_UNLESS)
1333 ret = !ret;
1334 }
1335
1336 if (ret) {
1337 /* no rule, or the rule matches */
Cyril Bonté47fdd8e2010-04-25 00:00:51 +02001338 if (prst_rule->type == PERSIST_TYPE_FORCE) {
1339 s->flags |= SN_FORCE_PRST;
1340 } else {
1341 s->flags |= SN_IGNORE_PRST;
1342 }
Willy Tarreau4de91492010-01-22 19:10:05 +01001343 break;
1344 }
1345 }
1346
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001347 return 1;
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001348
1349 sw_failed:
1350 /* immediately abort this request in case of allocation failure */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001351 channel_abort(s->req);
1352 channel_abort(s->rep);
Willy Tarreaubedb9ba2009-07-12 08:27:39 +02001353
1354 if (!(s->flags & SN_ERR_MASK))
1355 s->flags |= SN_ERR_RESOURCE;
1356 if (!(s->flags & SN_FINST_MASK))
1357 s->flags |= SN_FINST_R;
1358
1359 s->txn.status = 500;
1360 s->req->analysers = 0;
1361 s->req->analyse_exp = TICK_ETERNITY;
1362 return 0;
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001363}
1364
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001365/* This stream analyser works on a request. It applies all use-server rules on
1366 * it then returns 1. The data must already be present in the buffer otherwise
1367 * they won't match. It always returns 1.
1368 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001369static int process_server_rules(struct session *s, struct channel *req, int an_bit)
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001370{
1371 struct proxy *px = s->be;
1372 struct server_rule *rule;
1373
1374 DPRINTF(stderr,"[%u] %s: session=%p b=%p, exp(r,w)=%u,%u bf=%08x bl=%d analysers=%02x\n",
1375 now_ms, __FUNCTION__,
1376 s,
1377 req,
1378 req->rex, req->wex,
1379 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001380 req->buf->i + req->buf->o,
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001381 req->analysers);
1382
1383 if (!(s->flags & SN_ASSIGNED)) {
1384 list_for_each_entry(rule, &px->server_rules, list) {
1385 int ret;
1386
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001387 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 +02001388 ret = acl_pass(ret);
1389 if (rule->cond->pol == ACL_COND_UNLESS)
1390 ret = !ret;
1391
1392 if (ret) {
1393 struct server *srv = rule->srv.ptr;
1394
Willy Tarreau892337c2014-05-13 23:41:20 +02001395 if ((srv->state != SRV_ST_STOPPED) ||
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001396 (px->options & PR_O_PERSIST) ||
1397 (s->flags & SN_FORCE_PRST)) {
1398 s->flags |= SN_DIRECT | SN_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001399 s->target = &srv->obj_type;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001400 break;
1401 }
1402 /* if the server is not UP, let's go on with next rules
1403 * just in case another one is suited.
1404 */
1405 }
1406 }
1407 }
1408
1409 req->analysers &= ~an_bit;
1410 req->analyse_exp = TICK_ETERNITY;
1411 return 1;
1412}
1413
Emeric Brun1d33b292010-01-04 15:47:17 +01001414/* This stream analyser works on a request. It applies all sticking rules on
1415 * it then returns 1. The data must already be present in the buffer otherwise
1416 * they won't match. It always returns 1.
1417 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001418static int process_sticking_rules(struct session *s, struct channel *req, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001419{
1420 struct proxy *px = s->be;
1421 struct sticking_rule *rule;
1422
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001423 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 +01001424 now_ms, __FUNCTION__,
1425 s,
1426 req,
1427 req->rex, req->wex,
1428 req->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001429 req->buf->i,
Emeric Brun1d33b292010-01-04 15:47:17 +01001430 req->analysers);
1431
1432 list_for_each_entry(rule, &px->sticking_rules, list) {
1433 int ret = 1 ;
1434 int i;
1435
Willy Tarreau9667a802013-12-09 12:52:13 +01001436 /* Only the first stick store-request of each table is applied
1437 * and other ones are ignored. The purpose is to allow complex
1438 * configurations which look for multiple entries by decreasing
1439 * order of precision and to stop at the first which matches.
1440 * An example could be a store of the IP address from an HTTP
1441 * header first, then from the source if not found.
1442 */
Emeric Brun1d33b292010-01-04 15:47:17 +01001443 for (i = 0; i < s->store_count; i++) {
1444 if (rule->table.t == s->store[i].table)
1445 break;
1446 }
1447
1448 if (i != s->store_count)
1449 continue;
1450
1451 if (rule->cond) {
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001452 ret = acl_exec_cond(rule->cond, px, s, &s->txn, SMP_OPT_DIR_REQ|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001453 ret = acl_pass(ret);
1454 if (rule->cond->pol == ACL_COND_UNLESS)
1455 ret = !ret;
1456 }
1457
1458 if (ret) {
1459 struct stktable_key *key;
1460
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001461 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 +01001462 if (!key)
1463 continue;
1464
1465 if (rule->flags & STK_IS_MATCH) {
1466 struct stksess *ts;
1467
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001468 if ((ts = stktable_lookup_key(rule->table.t, key)) != NULL) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001469 if (!(s->flags & SN_ASSIGNED)) {
1470 struct eb32_node *node;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001471 void *ptr;
Emeric Brun1d33b292010-01-04 15:47:17 +01001472
1473 /* srv found in table */
Willy Tarreau13c29de2010-06-06 16:40:39 +02001474 ptr = stktable_data_ptr(rule->table.t, ts, STKTABLE_DT_SERVER_ID);
1475 node = eb32_lookup(&px->conf.used_server_id, stktable_data_cast(ptr, server_id));
Emeric Brun1d33b292010-01-04 15:47:17 +01001476 if (node) {
1477 struct server *srv;
1478
1479 srv = container_of(node, struct server, conf.id);
Willy Tarreau892337c2014-05-13 23:41:20 +02001480 if ((srv->state != SRV_ST_STOPPED) ||
Willy Tarreau4de91492010-01-22 19:10:05 +01001481 (px->options & PR_O_PERSIST) ||
1482 (s->flags & SN_FORCE_PRST)) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001483 s->flags |= SN_DIRECT | SN_ASSIGNED;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001484 s->target = &srv->obj_type;
Emeric Brun1d33b292010-01-04 15:47:17 +01001485 }
1486 }
1487 }
Emeric Brun85e77c72010-09-23 18:16:52 +02001488 stktable_touch(rule->table.t, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001489 }
1490 }
1491 if (rule->flags & STK_IS_STORE) {
1492 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
1493 struct stksess *ts;
1494
1495 ts = stksess_new(rule->table.t, key);
1496 if (ts) {
1497 s->store[s->store_count].table = rule->table.t;
1498 s->store[s->store_count++].ts = ts;
1499 }
1500 }
1501 }
1502 }
1503 }
1504
1505 req->analysers &= ~an_bit;
1506 req->analyse_exp = TICK_ETERNITY;
1507 return 1;
1508}
1509
1510/* This stream analyser works on a response. It applies all store rules on it
1511 * then returns 1. The data must already be present in the buffer otherwise
1512 * they won't match. It always returns 1.
1513 */
Willy Tarreau7421efb2012-07-02 15:11:27 +02001514static int process_store_rules(struct session *s, struct channel *rep, int an_bit)
Emeric Brun1d33b292010-01-04 15:47:17 +01001515{
1516 struct proxy *px = s->be;
1517 struct sticking_rule *rule;
1518 int i;
Willy Tarreau9667a802013-12-09 12:52:13 +01001519 int nbreq = s->store_count;
Emeric Brun1d33b292010-01-04 15:47:17 +01001520
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001521 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 +01001522 now_ms, __FUNCTION__,
1523 s,
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001524 rep,
1525 rep->rex, rep->wex,
1526 rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001527 rep->buf->i,
Willy Tarreau2e2b3eb2010-02-09 20:55:44 +01001528 rep->analysers);
Emeric Brun1d33b292010-01-04 15:47:17 +01001529
1530 list_for_each_entry(rule, &px->storersp_rules, list) {
1531 int ret = 1 ;
Emeric Brun1d33b292010-01-04 15:47:17 +01001532
Willy Tarreau9667a802013-12-09 12:52:13 +01001533 /* Only the first stick store-response of each table is applied
1534 * and other ones are ignored. The purpose is to allow complex
1535 * configurations which look for multiple entries by decreasing
1536 * order of precision and to stop at the first which matches.
1537 * An example could be a store of a set-cookie value, with a
1538 * fallback to a parameter found in a 302 redirect.
1539 *
1540 * The store-response rules are not allowed to override the
1541 * store-request rules for the same table, but they may coexist.
1542 * Thus we can have up to one store-request entry and one store-
1543 * response entry for the same table at any time.
1544 */
1545 for (i = nbreq; i < s->store_count; i++) {
1546 if (rule->table.t == s->store[i].table)
1547 break;
1548 }
1549
1550 /* skip existing entries for this table */
1551 if (i < s->store_count)
1552 continue;
1553
Emeric Brun1d33b292010-01-04 15:47:17 +01001554 if (rule->cond) {
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001555 ret = acl_exec_cond(rule->cond, px, s, &s->txn, SMP_OPT_DIR_RES|SMP_OPT_FINAL);
Emeric Brun1d33b292010-01-04 15:47:17 +01001556 ret = acl_pass(ret);
1557 if (rule->cond->pol == ACL_COND_UNLESS)
1558 ret = !ret;
1559 }
1560
1561 if (ret) {
1562 struct stktable_key *key;
1563
Willy Tarreau32a6f2e2012-04-25 10:13:36 +02001564 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 +01001565 if (!key)
1566 continue;
1567
Willy Tarreau37e340c2013-12-06 23:05:21 +01001568 if (s->store_count < (sizeof(s->store) / sizeof(s->store[0]))) {
Emeric Brun1d33b292010-01-04 15:47:17 +01001569 struct stksess *ts;
1570
1571 ts = stksess_new(rule->table.t, key);
1572 if (ts) {
1573 s->store[s->store_count].table = rule->table.t;
Emeric Brun1d33b292010-01-04 15:47:17 +01001574 s->store[s->store_count++].ts = ts;
1575 }
1576 }
1577 }
1578 }
1579
1580 /* process store request and store response */
1581 for (i = 0; i < s->store_count; i++) {
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001582 struct stksess *ts;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001583 void *ptr;
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001584
Willy Tarreauc93cd162014-05-13 15:54:22 +02001585 if (objt_server(s->target) && objt_server(s->target)->flags & SRV_F_NON_STICK) {
Simon Hormanfa461682011-06-25 09:39:49 +09001586 stksess_free(s->store[i].table, s->store[i].ts);
1587 s->store[i].ts = NULL;
1588 continue;
1589 }
1590
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001591 ts = stktable_lookup(s->store[i].table, s->store[i].ts);
1592 if (ts) {
1593 /* the entry already existed, we can free ours */
Emeric Brun85e77c72010-09-23 18:16:52 +02001594 stktable_touch(s->store[i].table, ts, 1);
Emeric Brun1d33b292010-01-04 15:47:17 +01001595 stksess_free(s->store[i].table, s->store[i].ts);
Emeric Brun1d33b292010-01-04 15:47:17 +01001596 }
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001597 else
Emeric Brun85e77c72010-09-23 18:16:52 +02001598 ts = stktable_store(s->store[i].table, s->store[i].ts, 1);
Willy Tarreauf16d2b82010-06-06 15:38:59 +02001599
1600 s->store[i].ts = NULL;
Willy Tarreau13c29de2010-06-06 16:40:39 +02001601 ptr = stktable_data_ptr(s->store[i].table, ts, STKTABLE_DT_SERVER_ID);
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001602 stktable_data_cast(ptr, server_id) = objt_server(s->target)->puid;
Emeric Brun1d33b292010-01-04 15:47:17 +01001603 }
Willy Tarreau2a164ee2010-06-18 09:57:45 +02001604 s->store_count = 0; /* everything is stored */
Emeric Brun1d33b292010-01-04 15:47:17 +01001605
1606 rep->analysers &= ~an_bit;
1607 rep->analyse_exp = TICK_ETERNITY;
1608 return 1;
1609}
1610
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001611/* This macro is very specific to the function below. See the comments in
1612 * process_session() below to understand the logic and the tests.
1613 */
1614#define UPDATE_ANALYSERS(real, list, back, flag) { \
1615 list = (((list) & ~(flag)) | ~(back)) & (real); \
1616 back = real; \
1617 if (!(list)) \
1618 break; \
1619 if (((list) ^ ((list) & ((list) - 1))) < (flag)) \
1620 continue; \
1621}
1622
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001623/* Processes the client, server, request and response jobs of a session task,
1624 * then puts it back to the wait queue in a clean state, or cleans up its
1625 * resources if it must be deleted. Returns in <next> the date the task wants
1626 * to be woken up, or TICK_ETERNITY. In order not to call all functions for
1627 * nothing too many times, the request and response buffers flags are monitored
1628 * and each function is called only if at least another function has changed at
1629 * least one flag it is interested in.
1630 */
Willy Tarreau26c25062009-03-08 09:38:41 +01001631struct task *process_session(struct task *t)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001632{
Willy Tarreau827aee92011-03-10 16:55:02 +01001633 struct server *srv;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001634 struct session *s = t->context;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001635 unsigned int rqf_last, rpf_last;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001636 unsigned int rq_prod_last, rq_cons_last;
1637 unsigned int rp_cons_last, rp_prod_last;
Willy Tarreau576507f2010-01-07 00:09:04 +01001638 unsigned int req_ana_back;
Willy Tarreau09437572014-05-21 16:58:17 +02001639 unsigned int rq_oneshot, rp_oneshot;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001640
1641 //DPRINTF(stderr, "%s:%d: cs=%d ss=%d(%d) rqf=0x%08x rpf=0x%08x\n", __FUNCTION__, __LINE__,
1642 // s->si[0].state, s->si[1].state, s->si[1].err_type, s->req->flags, s->rep->flags);
1643
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +01001644 /* this data may be no longer valid, clear it */
1645 memset(&s->txn.auth, 0, sizeof(s->txn.auth));
1646
Willy Tarreau09437572014-05-21 16:58:17 +02001647 /* These flags must explicitly be set every time by the analysers who
1648 * need them, but we won't always call them (eg: during a connection
1649 * retry). So we need to keep them and only clear them if we're sure
1650 * to call the analysers.
1651 */
1652 rq_oneshot = s->req->flags & (CF_READ_NOEXP | CF_WAKE_WRITE);
1653 rp_oneshot = s->rep->flags & (CF_READ_NOEXP | CF_WAKE_WRITE);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001654
1655 /* Keep a copy of req/rep flags so that we can detect shutdowns */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001656 rqf_last = s->req->flags & ~CF_MASK_ANALYSER;
1657 rpf_last = s->rep->flags & ~CF_MASK_ANALYSER;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001658
Willy Tarreau89f7ef22009-09-05 20:57:35 +02001659 /* we don't want the stream interface functions to recursively wake us up */
1660 if (s->req->prod->owner == t)
1661 s->req->prod->flags |= SI_FL_DONT_WAKE;
1662 if (s->req->cons->owner == t)
1663 s->req->cons->flags |= SI_FL_DONT_WAKE;
1664
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001665 /* 1a: Check for low level timeouts if needed. We just set a flag on
1666 * stream interfaces when their timeouts have expired.
1667 */
1668 if (unlikely(t->state & TASK_WOKEN_TIMER)) {
1669 stream_int_check_timeouts(&s->si[0]);
1670 stream_int_check_timeouts(&s->si[1]);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001671
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001672 /* check channel timeouts, and close the corresponding stream interfaces
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001673 * for future reads or writes. Note: this will also concern upper layers
1674 * but we do not touch any other flag. We must be careful and correctly
1675 * detect state changes when calling them.
1676 */
1677
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001678 channel_check_timeouts(s->req);
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001679
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001680 if (unlikely((s->req->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
Willy Tarreau14641402009-12-29 14:49:56 +01001681 s->req->cons->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001682 si_shutw(s->req->cons);
Willy Tarreau14641402009-12-29 14:49:56 +01001683 }
1684
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001685 if (unlikely((s->req->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001686 if (s->req->prod->flags & SI_FL_NOHALF)
1687 s->req->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001688 si_shutr(s->req->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001689 }
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001690
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001691 channel_check_timeouts(s->rep);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001692
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001693 if (unlikely((s->rep->flags & (CF_SHUTW|CF_WRITE_TIMEOUT)) == CF_WRITE_TIMEOUT)) {
Willy Tarreau14641402009-12-29 14:49:56 +01001694 s->rep->cons->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001695 si_shutw(s->rep->cons);
Willy Tarreau14641402009-12-29 14:49:56 +01001696 }
1697
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001698 if (unlikely((s->rep->flags & (CF_SHUTR|CF_READ_TIMEOUT)) == CF_READ_TIMEOUT)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001699 if (s->rep->prod->flags & SI_FL_NOHALF)
1700 s->rep->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02001701 si_shutr(s->rep->prod);
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02001702 }
Willy Tarreau798f4322012-11-08 14:49:17 +01001703
1704 /* Once in a while we're woken up because the task expires. But
1705 * this does not necessarily mean that a timeout has been reached.
1706 * So let's not run a whole session processing if only an expiration
1707 * timeout needs to be refreshed.
1708 */
1709 if (!((s->req->flags | s->rep->flags) &
1710 (CF_SHUTR|CF_READ_ACTIVITY|CF_READ_TIMEOUT|CF_SHUTW|
1711 CF_WRITE_ACTIVITY|CF_WRITE_TIMEOUT|CF_ANA_TIMEOUT)) &&
1712 !((s->si[0].flags | s->si[1].flags) & (SI_FL_EXP|SI_FL_ERR)) &&
1713 ((t->state & TASK_WOKEN_ANY) == TASK_WOKEN_TIMER))
1714 goto update_exp_and_leave;
Willy Tarreaub67a9b82009-06-21 22:03:51 +02001715 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001716
1717 /* 1b: check for low-level errors reported at the stream interface.
1718 * First we check if it's a retryable error (in which case we don't
1719 * want to tell the buffer). Otherwise we report the error one level
1720 * upper by setting flags into the buffers. Note that the side towards
1721 * the client cannot have connect (hence retryable) errors. Also, the
1722 * connection setup code must be able to deal with any type of abort.
1723 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001724 srv = objt_server(s->target);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001725 if (unlikely(s->si[0].flags & SI_FL_ERR)) {
1726 if (s->si[0].state == SI_ST_EST || s->si[0].state == SI_ST_DIS) {
Willy Tarreau73b013b2012-05-21 16:31:45 +02001727 si_shutr(&s->si[0]);
1728 si_shutw(&s->si[0]);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001729 stream_int_report_error(&s->si[0]);
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001730 if (!(s->req->analysers) && !(s->rep->analysers)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001731 s->be->be_counters.cli_aborts++;
1732 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001733 if (srv)
1734 srv->counters.cli_aborts++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001735 if (!(s->flags & SN_ERR_MASK))
1736 s->flags |= SN_ERR_CLICL;
1737 if (!(s->flags & SN_FINST_MASK))
1738 s->flags |= SN_FINST_D;
1739 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001740 }
1741 }
1742
1743 if (unlikely(s->si[1].flags & SI_FL_ERR)) {
1744 if (s->si[1].state == SI_ST_EST || s->si[1].state == SI_ST_DIS) {
Willy Tarreau73b013b2012-05-21 16:31:45 +02001745 si_shutr(&s->si[1]);
1746 si_shutw(&s->si[1]);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001747 stream_int_report_error(&s->si[1]);
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001748 s->be->be_counters.failed_resp++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001749 if (srv)
1750 srv->counters.failed_resp++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001751 if (!(s->req->analysers) && !(s->rep->analysers)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01001752 s->be->be_counters.srv_aborts++;
1753 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01001754 if (srv)
1755 srv->counters.srv_aborts++;
Willy Tarreau05cb29b2008-12-14 11:44:04 +01001756 if (!(s->flags & SN_ERR_MASK))
1757 s->flags |= SN_ERR_SRVCL;
1758 if (!(s->flags & SN_FINST_MASK))
1759 s->flags |= SN_FINST_D;
1760 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001761 }
1762 /* note: maybe we should process connection errors here ? */
1763 }
1764
1765 if (s->si[1].state == SI_ST_CON) {
1766 /* we were trying to establish a connection on the server side,
1767 * maybe it succeeded, maybe it failed, maybe we timed out, ...
1768 */
1769 if (unlikely(!sess_update_st_con_tcp(s, &s->si[1])))
1770 sess_update_st_cer(s, &s->si[1]);
1771 else if (s->si[1].state == SI_ST_EST)
1772 sess_establish(s, &s->si[1]);
1773
1774 /* state is now one of SI_ST_CON (still in progress), SI_ST_EST
1775 * (established), SI_ST_DIS (abort), SI_ST_CLO (last error),
1776 * SI_ST_ASS/SI_ST_TAR/SI_ST_REQ for retryable errors.
1777 */
1778 }
1779
Willy Tarreau815a9b22010-07-27 17:15:12 +02001780 rq_prod_last = s->si[0].state;
1781 rq_cons_last = s->si[1].state;
1782 rp_cons_last = s->si[0].state;
1783 rp_prod_last = s->si[1].state;
1784
1785 resync_stream_interface:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001786 /* Check for connection closure */
1787
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001788 DPRINTF(stderr,
Willy Tarreau02d6cfc2012-03-01 18:19:58 +01001789 "[%u] %s:%d: task=%p s=%p, sfl=0x%08x, rq=%p, rp=%p, exp(r,w)=%u,%u rqf=%08x rpf=%08x rqh=%d rqt=%d rph=%d rpt=%d cs=%d ss=%d, cet=0x%x set=0x%x retr=%d\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001790 now_ms, __FUNCTION__, __LINE__,
1791 t,
1792 s, s->flags,
1793 s->req, s->rep,
1794 s->req->rex, s->rep->wex,
1795 s->req->flags, s->rep->flags,
Willy Tarreau9b28e032012-10-12 23:49:43 +02001796 s->req->buf->i, s->req->buf->o, s->rep->buf->i, s->rep->buf->o, s->rep->cons->state, s->req->cons->state,
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001797 s->rep->cons->err_type, s->req->cons->err_type,
Willy Tarreauee28de02010-06-01 09:51:00 +02001798 s->req->cons->conn_retries);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001799
1800 /* nothing special to be done on client side */
1801 if (unlikely(s->req->prod->state == SI_ST_DIS))
1802 s->req->prod->state = SI_ST_CLO;
1803
1804 /* When a server-side connection is released, we have to count it and
1805 * check for pending connections on this server.
1806 */
1807 if (unlikely(s->req->cons->state == SI_ST_DIS)) {
1808 s->req->cons->state = SI_ST_CLO;
Willy Tarreau3fdb3662012-11-12 00:42:33 +01001809 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01001810 if (srv) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001811 if (s->flags & SN_CURR_SESS) {
1812 s->flags &= ~SN_CURR_SESS;
Willy Tarreau827aee92011-03-10 16:55:02 +01001813 srv->cur_sess--;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001814 }
1815 sess_change_server(s, NULL);
Willy Tarreau827aee92011-03-10 16:55:02 +01001816 if (may_dequeue_tasks(srv, s->be))
1817 process_srv_queue(srv);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001818 }
1819 }
1820
1821 /*
1822 * Note: of the transient states (REQ, CER, DIS), only REQ may remain
1823 * at this point.
1824 */
1825
Willy Tarreau0be0ef92009-03-08 19:20:25 +01001826 resync_request:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001827 /* Analyse request */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001828 if (((s->req->flags & ~rqf_last) & CF_MASK_ANALYSER) ||
1829 ((s->req->flags ^ rqf_last) & CF_MASK_STATIC) ||
Willy Tarreau815a9b22010-07-27 17:15:12 +02001830 s->si[0].state != rq_prod_last ||
1831 s->si[1].state != rq_cons_last) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001832 unsigned int flags = s->req->flags;
1833
Willy Tarreau09437572014-05-21 16:58:17 +02001834 s->req->flags &= ~rq_oneshot;
1835 rq_oneshot = 0;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001836 if (s->req->prod->state >= SI_ST_EST) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01001837 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001838 unsigned int ana_list;
1839 unsigned int ana_back;
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001840
Willy Tarreau90deb182010-01-07 00:20:41 +01001841 /* it's up to the analysers to stop new connections,
1842 * disable reading or closing. Note: if an analyser
1843 * disables any of these bits, it is responsible for
1844 * enabling them again when it disables itself, so
1845 * that other analysers are called in similar conditions.
1846 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001847 channel_auto_read(s->req);
1848 channel_auto_connect(s->req);
1849 channel_auto_close(s->req);
Willy Tarreauedcf6682008-11-30 23:15:34 +01001850
1851 /* We will call all analysers for which a bit is set in
1852 * s->req->analysers, following the bit order from LSB
1853 * to MSB. The analysers must remove themselves from
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001854 * the list when not needed. Any analyser may return 0
1855 * to break out of the loop, either because of missing
1856 * data to take a decision, or because it decides to
1857 * kill the session. We loop at least once through each
1858 * analyser, and we may loop again if other analysers
1859 * are added in the middle.
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001860 *
1861 * We build a list of analysers to run. We evaluate all
1862 * of these analysers in the order of the lower bit to
1863 * the higher bit. This ordering is very important.
1864 * An analyser will often add/remove other analysers,
1865 * including itself. Any changes to itself have no effect
1866 * on the loop. If it removes any other analysers, we
1867 * want those analysers not to be called anymore during
1868 * this loop. If it adds an analyser that is located
1869 * after itself, we want it to be scheduled for being
1870 * processed during the loop. If it adds an analyser
1871 * which is located before it, we want it to switch to
1872 * it immediately, even if it has already been called
1873 * once but removed since.
1874 *
1875 * In order to achieve this, we compare the analyser
1876 * list after the call with a copy of it before the
1877 * call. The work list is fed with analyser bits that
1878 * appeared during the call. Then we compare previous
1879 * work list with the new one, and check the bits that
1880 * appeared. If the lowest of these bits is lower than
1881 * the current bit, it means we have enabled a previous
1882 * analyser and must immediately loop again.
Willy Tarreauedcf6682008-11-30 23:15:34 +01001883 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001884
1885 ana_list = ana_back = s->req->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01001886 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001887 /* Warning! ensure that analysers are always placed in ascending order! */
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001888
Willy Tarreaufb356202010-08-03 14:02:05 +02001889 if (ana_list & AN_REQ_INSPECT_FE) {
1890 if (!tcp_inspect_request(s, s->req, AN_REQ_INSPECT_FE))
Willy Tarreauedcf6682008-11-30 23:15:34 +01001891 break;
Willy Tarreaufb356202010-08-03 14:02:05 +02001892 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_INSPECT_FE);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001893 }
Willy Tarreauedcf6682008-11-30 23:15:34 +01001894
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001895 if (ana_list & AN_REQ_WAIT_HTTP) {
Willy Tarreau3a816292009-07-07 10:55:49 +02001896 if (!http_wait_for_request(s, s->req, AN_REQ_WAIT_HTTP))
Willy Tarreaud787e662009-07-07 10:14:51 +02001897 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001898 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_WAIT_HTTP);
Willy Tarreaud787e662009-07-07 10:14:51 +02001899 }
1900
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001901 if (ana_list & AN_REQ_HTTP_PROCESS_FE) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001902 if (!http_process_req_common(s, s->req, AN_REQ_HTTP_PROCESS_FE, s->fe))
1903 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001904 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_PROCESS_FE);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001905 }
1906
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001907 if (ana_list & AN_REQ_SWITCHING_RULES) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001908 if (!process_switching_rules(s, s->req, AN_REQ_SWITCHING_RULES))
1909 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001910 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_SWITCHING_RULES);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001911 }
1912
Willy Tarreaufb356202010-08-03 14:02:05 +02001913 if (ana_list & AN_REQ_INSPECT_BE) {
1914 if (!tcp_inspect_request(s, s->req, AN_REQ_INSPECT_BE))
1915 break;
1916 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_INSPECT_BE);
1917 }
1918
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001919 if (ana_list & AN_REQ_HTTP_PROCESS_BE) {
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001920 if (!http_process_req_common(s, s->req, AN_REQ_HTTP_PROCESS_BE, s->be))
1921 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001922 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_PROCESS_BE);
Willy Tarreau1d0dfb12009-07-07 15:10:31 +02001923 }
1924
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001925 if (ana_list & AN_REQ_HTTP_TARPIT) {
Willy Tarreau3a816292009-07-07 10:55:49 +02001926 if (!http_process_tarpit(s, s->req, AN_REQ_HTTP_TARPIT))
Willy Tarreau60b85b02008-11-30 23:28:40 +01001927 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001928 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_TARPIT);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001929 }
Willy Tarreau60b85b02008-11-30 23:28:40 +01001930
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001931 if (ana_list & AN_REQ_SRV_RULES) {
1932 if (!process_server_rules(s, s->req, AN_REQ_SRV_RULES))
1933 break;
1934 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_SRV_RULES);
1935 }
1936
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001937 if (ana_list & AN_REQ_HTTP_INNER) {
Willy Tarreauc465fd72009-08-31 00:17:18 +02001938 if (!http_process_request(s, s->req, AN_REQ_HTTP_INNER))
1939 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001940 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_INNER);
Willy Tarreauc465fd72009-08-31 00:17:18 +02001941 }
1942
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001943 if (ana_list & AN_REQ_HTTP_BODY) {
Willy Tarreau5a8f9472014-04-10 11:16:06 +02001944 if (!http_wait_for_request_body(s, s->req, AN_REQ_HTTP_BODY))
Willy Tarreaud34af782008-11-30 23:36:37 +01001945 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001946 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_BODY);
Willy Tarreau1a52dbd2009-06-28 19:37:53 +02001947 }
Emeric Brun647caf12009-06-30 17:57:00 +02001948
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001949 if (ana_list & AN_REQ_PRST_RDP_COOKIE) {
Emeric Brun647caf12009-06-30 17:57:00 +02001950 if (!tcp_persist_rdp_cookie(s, s->req, AN_REQ_PRST_RDP_COOKIE))
1951 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001952 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_PRST_RDP_COOKIE);
Emeric Brun647caf12009-06-30 17:57:00 +02001953 }
Willy Tarreaud98cf932009-12-27 22:54:55 +01001954
Emeric Brun1d33b292010-01-04 15:47:17 +01001955 if (ana_list & AN_REQ_STICKING_RULES) {
1956 if (!process_sticking_rules(s, s->req, AN_REQ_STICKING_RULES))
1957 break;
1958 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_STICKING_RULES);
1959 }
1960
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001961 if (ana_list & AN_REQ_HTTP_XFER_BODY) {
Willy Tarreaud98cf932009-12-27 22:54:55 +01001962 if (!http_request_forward_body(s, s->req, AN_REQ_HTTP_XFER_BODY))
1963 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01001964 UPDATE_ANALYSERS(s->req->analysers, ana_list, ana_back, AN_REQ_HTTP_XFER_BODY);
Willy Tarreaud98cf932009-12-27 22:54:55 +01001965 }
Willy Tarreaue34070e2010-01-08 00:32:27 +01001966 break;
1967 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01001968 }
Willy Tarreau84455332009-03-15 22:34:05 +01001969
Willy Tarreau815a9b22010-07-27 17:15:12 +02001970 rq_prod_last = s->si[0].state;
1971 rq_cons_last = s->si[1].state;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001972 s->req->flags &= ~CF_WAKE_ONCE;
Willy Tarreau815a9b22010-07-27 17:15:12 +02001973 rqf_last = s->req->flags;
1974
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001975 if ((s->req->flags ^ flags) & CF_MASK_STATIC)
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001976 goto resync_request;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001977 }
1978
Willy Tarreau576507f2010-01-07 00:09:04 +01001979 /* we'll monitor the request analysers while parsing the response,
1980 * because some response analysers may indirectly enable new request
1981 * analysers (eg: HTTP keep-alive).
1982 */
1983 req_ana_back = s->req->analysers;
1984
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001985 resync_response:
1986 /* Analyse response */
1987
Willy Tarreaub31c9712012-11-11 23:05:39 +01001988 if (((s->rep->flags & ~rpf_last) & CF_MASK_ANALYSER) ||
Willy Tarreau09437572014-05-21 16:58:17 +02001989 ((s->rep->flags ^ rpf_last) & CF_MASK_STATIC) ||
1990 s->si[0].state != rp_cons_last ||
1991 s->si[1].state != rp_prod_last) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02001992 unsigned int flags = s->rep->flags;
1993
Willy Tarreau09437572014-05-21 16:58:17 +02001994 s->rep->flags &= ~rp_oneshot;
1995 rp_oneshot = 0;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02001996 if ((s->rep->flags & CF_MASK_ANALYSER) &&
Willy Tarreau0499e352010-12-17 07:13:42 +01001997 (s->rep->analysers & AN_REQ_WAIT_HTTP)) {
1998 /* Due to HTTP pipelining, the HTTP request analyser might be waiting
1999 * for some free space in the response buffer, so we might need to call
2000 * it when something changes in the response buffer, but still we pass
2001 * it the request buffer. Note that the SI state might very well still
2002 * be zero due to us returning a flow of redirects!
2003 */
2004 s->rep->analysers &= ~AN_REQ_WAIT_HTTP;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002005 s->req->flags |= CF_WAKE_ONCE;
Willy Tarreau0499e352010-12-17 07:13:42 +01002006 }
2007
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002008 if (s->rep->prod->state >= SI_ST_EST) {
Willy Tarreaue34070e2010-01-08 00:32:27 +01002009 int max_loops = global.tune.maxpollevents;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002010 unsigned int ana_list;
2011 unsigned int ana_back;
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002012
Willy Tarreau90deb182010-01-07 00:20:41 +01002013 /* it's up to the analysers to stop disable reading or
2014 * closing. Note: if an analyser disables any of these
2015 * bits, it is responsible for enabling them again when
2016 * it disables itself, so that other analysers are called
2017 * in similar conditions.
2018 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002019 channel_auto_read(s->rep);
2020 channel_auto_close(s->rep);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002021
2022 /* We will call all analysers for which a bit is set in
2023 * s->rep->analysers, following the bit order from LSB
2024 * to MSB. The analysers must remove themselves from
2025 * the list when not needed. Any analyser may return 0
2026 * to break out of the loop, either because of missing
2027 * data to take a decision, or because it decides to
2028 * kill the session. We loop at least once through each
2029 * analyser, and we may loop again if other analysers
2030 * are added in the middle.
2031 */
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002032
2033 ana_list = ana_back = s->rep->analysers;
Willy Tarreaue34070e2010-01-08 00:32:27 +01002034 while (ana_list && max_loops--) {
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002035 /* Warning! ensure that analysers are always placed in ascending order! */
2036
Emeric Brun97679e72010-09-23 17:56:44 +02002037 if (ana_list & AN_RES_INSPECT) {
2038 if (!tcp_inspect_response(s, s->rep, AN_RES_INSPECT))
2039 break;
2040 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_INSPECT);
2041 }
2042
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002043 if (ana_list & AN_RES_WAIT_HTTP) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002044 if (!http_wait_for_response(s, s->rep, AN_RES_WAIT_HTTP))
2045 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002046 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_WAIT_HTTP);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002047 }
2048
Emeric Brun1d33b292010-01-04 15:47:17 +01002049 if (ana_list & AN_RES_STORE_RULES) {
2050 if (!process_store_rules(s, s->rep, AN_RES_STORE_RULES))
2051 break;
2052 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_STORE_RULES);
2053 }
2054
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002055 if (ana_list & AN_RES_HTTP_PROCESS_BE) {
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002056 if (!http_process_res_common(s, s->rep, AN_RES_HTTP_PROCESS_BE, s->be))
2057 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002058 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_HTTP_PROCESS_BE);
Willy Tarreaub37c27e2009-10-18 22:53:08 +02002059 }
Willy Tarreaud98cf932009-12-27 22:54:55 +01002060
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002061 if (ana_list & AN_RES_HTTP_XFER_BODY) {
Willy Tarreaud98cf932009-12-27 22:54:55 +01002062 if (!http_response_forward_body(s, s->rep, AN_RES_HTTP_XFER_BODY))
2063 break;
Willy Tarreau1e0bbaf2010-01-06 23:53:24 +01002064 UPDATE_ANALYSERS(s->rep->analysers, ana_list, ana_back, AN_RES_HTTP_XFER_BODY);
Willy Tarreaud98cf932009-12-27 22:54:55 +01002065 }
Willy Tarreaue34070e2010-01-08 00:32:27 +01002066 break;
2067 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002068 }
2069
Willy Tarreau815a9b22010-07-27 17:15:12 +02002070 rp_cons_last = s->si[0].state;
2071 rp_prod_last = s->si[1].state;
2072 rpf_last = s->rep->flags;
2073
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002074 if ((s->rep->flags ^ flags) & CF_MASK_STATIC)
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002075 goto resync_response;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002076 }
2077
Willy Tarreau576507f2010-01-07 00:09:04 +01002078 /* maybe someone has added some request analysers, so we must check and loop */
2079 if (s->req->analysers & ~req_ana_back)
2080 goto resync_request;
2081
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002082 if ((s->req->flags & ~rqf_last) & CF_MASK_ANALYSER)
Willy Tarreau0499e352010-12-17 07:13:42 +01002083 goto resync_request;
2084
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002085 /* FIXME: here we should call protocol handlers which rely on
2086 * both buffers.
2087 */
2088
2089
2090 /*
Willy Tarreauae526782010-03-04 20:34:23 +01002091 * Now we propagate unhandled errors to the session. Normally
2092 * we're just in a data phase here since it means we have not
2093 * seen any analyser who could set an error status.
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002094 */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002095 srv = objt_server(s->target);
Willy Tarreau2f976e12010-11-11 14:28:47 +01002096 if (unlikely(!(s->flags & SN_ERR_MASK))) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002097 if (s->req->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002098 /* Report it if the client got an error or a read timeout expired */
Willy Tarreau84455332009-03-15 22:34:05 +01002099 s->req->analysers = 0;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002100 if (s->req->flags & CF_READ_ERROR) {
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_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002106 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002107 else if (s->req->flags & CF_READ_TIMEOUT) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002108 s->be->be_counters.cli_aborts++;
2109 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002110 if (srv)
2111 srv->counters.cli_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002112 s->flags |= SN_ERR_CLITO;
Willy Tarreauae526782010-03-04 20:34:23 +01002113 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002114 else if (s->req->flags & CF_WRITE_ERROR) {
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_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002120 }
2121 else {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002122 s->be->be_counters.srv_aborts++;
2123 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002124 if (srv)
2125 srv->counters.srv_aborts++;
Willy Tarreau84455332009-03-15 22:34:05 +01002126 s->flags |= SN_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002127 }
Willy Tarreau84455332009-03-15 22:34:05 +01002128 sess_set_term_flags(s);
2129 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002130 else if (s->rep->flags & (CF_READ_ERROR|CF_READ_TIMEOUT|CF_WRITE_ERROR|CF_WRITE_TIMEOUT)) {
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002131 /* Report it if the server got an error or a read timeout expired */
2132 s->rep->analysers = 0;
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002133 if (s->rep->flags & CF_READ_ERROR) {
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_SRVCL;
Willy Tarreauae526782010-03-04 20:34:23 +01002139 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002140 else if (s->rep->flags & CF_READ_TIMEOUT) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002141 s->be->be_counters.srv_aborts++;
2142 s->fe->fe_counters.srv_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002143 if (srv)
2144 srv->counters.srv_aborts++;
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002145 s->flags |= SN_ERR_SRVTO;
Willy Tarreauae526782010-03-04 20:34:23 +01002146 }
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002147 else if (s->rep->flags & CF_WRITE_ERROR) {
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 Tarreau3deb3d02009-06-21 22:43:05 +02002152 s->flags |= SN_ERR_CLICL;
Willy Tarreauae526782010-03-04 20:34:23 +01002153 }
2154 else {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002155 s->be->be_counters.cli_aborts++;
2156 s->fe->fe_counters.cli_aborts++;
Willy Tarreau827aee92011-03-10 16:55:02 +01002157 if (srv)
2158 srv->counters.cli_aborts++;
Willy Tarreauae526782010-03-04 20:34:23 +01002159 s->flags |= SN_ERR_CLITO;
2160 }
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002161 sess_set_term_flags(s);
2162 }
Willy Tarreau84455332009-03-15 22:34:05 +01002163 }
2164
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002165 /*
2166 * Here we take care of forwarding unhandled data. This also includes
2167 * connection establishments and shutdown requests.
2168 */
2169
2170
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002171 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002172 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002173 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002174 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002175 */
Willy Tarreau2b028dd2013-12-31 23:56:46 +01002176 if (unlikely(!s->req->analysers &&
Willy Tarreaub31c9712012-11-11 23:05:39 +01002177 !(s->req->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau31971e52009-09-20 12:07:52 +02002178 (s->req->prod->state >= SI_ST_EST) &&
Willy Tarreau2b028dd2013-12-31 23:56:46 +01002179 (s->req->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002180 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002181 * attached to it. If any data are left in, we'll permit them to
2182 * move.
2183 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002184 channel_auto_read(s->req);
2185 channel_auto_connect(s->req);
2186 channel_auto_close(s->req);
Willy Tarreau9b28e032012-10-12 23:49:43 +02002187 buffer_flush(s->req->buf);
Willy Tarreau5bd8c372009-01-19 00:32:22 +01002188
Willy Tarreau09437572014-05-21 16:58:17 +02002189 s->req->flags &= ~rq_oneshot;
2190 rq_oneshot = 0;
2191
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002192 /* We'll let data flow between the producer (if still connected)
2193 * to the consumer (which might possibly not be connected yet).
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002194 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002195 if (!(s->req->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002196 channel_forward(s->req, CHN_INFINITE_FORWARD);
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002197 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002198
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002199 /* check if it is wise to enable kernel splicing to forward request data */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002200 if (!(s->req->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002201 s->req->to_forward &&
2202 (global.tune.options & GTUNE_USE_SPLICE) &&
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002203 (objt_conn(s->si[0].end) && __objt_conn(s->si[0].end)->xprt && __objt_conn(s->si[0].end)->xprt->rcv_pipe) &&
2204 (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 +01002205 (pipes_used < global.maxpipes) &&
2206 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_REQ) ||
2207 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002208 (s->req->flags & CF_STREAMER_FAST)))) {
2209 s->req->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002210 }
2211
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002212 /* reflect what the L7 analysers have seen last */
2213 rqf_last = s->req->flags;
2214
2215 /*
2216 * Now forward all shutdown requests between both sides of the buffer
2217 */
2218
Willy Tarreau520d95e2009-09-19 21:04:57 +02002219 /* first, let's check if the request buffer needs to shutdown(write), which may
2220 * happen either because the input is closed or because we want to force a close
Willy Tarreau05cdd962014-05-10 14:30:07 +02002221 * once the server has begun to respond. If a half-closed timeout is set, we adjust
2222 * the other side's timeout as well.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002223 */
Willy Tarreaub31c9712012-11-11 23:05:39 +01002224 if (unlikely((s->req->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau05cdd962014-05-10 14:30:07 +02002225 (CF_AUTO_CLOSE|CF_SHUTR))) {
2226 channel_shutw_now(s->req);
2227 if (tick_isset(s->fe->timeout.clientfin)) {
2228 s->rep->wto = s->fe->timeout.clientfin;
2229 s->rep->wex = tick_add(now_ms, s->rep->wto);
2230 }
2231 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002232
2233 /* shutdown(write) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002234 if (unlikely((s->req->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
Willy Tarreau8615c2a2013-06-21 08:20:19 +02002235 channel_is_empty(s->req))) {
2236 if (s->req->flags & CF_READ_ERROR)
2237 s->req->cons->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02002238 si_shutw(s->req->cons);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002239 if (tick_isset(s->be->timeout.serverfin)) {
2240 s->rep->rto = s->be->timeout.serverfin;
2241 s->rep->rex = tick_add(now_ms, s->rep->rto);
2242 }
Willy Tarreau8615c2a2013-06-21 08:20:19 +02002243 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002244
2245 /* shutdown(write) done on server side, we must stop the client too */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002246 if (unlikely((s->req->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW &&
Willy Tarreau3dbc6942008-12-07 13:05:04 +01002247 !s->req->analysers))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002248 channel_shutr_now(s->req);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002249
2250 /* shutdown(read) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002251 if (unlikely((s->req->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002252 if (s->req->prod->flags & SI_FL_NOHALF)
2253 s->req->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02002254 si_shutr(s->req->prod);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002255 if (tick_isset(s->fe->timeout.clientfin)) {
2256 s->rep->wto = s->fe->timeout.clientfin;
2257 s->rep->wex = tick_add(now_ms, s->rep->wto);
2258 }
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002259 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002260
Willy Tarreau520d95e2009-09-19 21:04:57 +02002261 /* it's possible that an upper layer has requested a connection setup or abort.
2262 * There are 2 situations where we decide to establish a new connection :
2263 * - there are data scheduled for emission in the buffer
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002264 * - the CF_AUTO_CONNECT flag is set (active connection)
Willy Tarreau520d95e2009-09-19 21:04:57 +02002265 */
2266 if (s->req->cons->state == SI_ST_INI) {
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002267 if (!(s->req->flags & CF_SHUTW)) {
2268 if ((s->req->flags & CF_AUTO_CONNECT) || !channel_is_empty(s->req)) {
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002269 /* If we have an appctx, there is no connect method, so we
2270 * immediately switch to the connected state, otherwise we
2271 * perform a connection request.
Willy Tarreau520d95e2009-09-19 21:04:57 +02002272 */
Willy Tarreau85e7d002010-05-31 11:57:51 +02002273 s->req->cons->state = SI_ST_REQ; /* new connection requested */
Willy Tarreau070ceb62010-06-01 10:36:43 +02002274 s->req->cons->conn_retries = s->be->conn_retries;
Willy Tarreau520d95e2009-09-19 21:04:57 +02002275 }
Willy Tarreau73201222009-08-16 18:27:24 +02002276 }
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002277 else {
Willy Tarreau92795622009-03-06 12:51:23 +01002278 s->req->cons->state = SI_ST_CLO; /* shutw+ini = abort */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002279 channel_shutw_now(s->req); /* fix buffer flags upon abort */
2280 channel_shutr_now(s->rep);
Willy Tarreauf41ffdc2009-09-20 08:19:25 +02002281 }
Willy Tarreau92795622009-03-06 12:51:23 +01002282 }
2283
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002284
2285 /* we may have a pending connection request, or a connection waiting
2286 * for completion.
2287 */
2288 if (s->si[1].state >= SI_ST_REQ && s->si[1].state < SI_ST_CON) {
2289 do {
2290 /* nb: step 1 might switch from QUE to ASS, but we first want
2291 * to give a chance to step 2 to perform a redirect if needed.
2292 */
2293 if (s->si[1].state != SI_ST_REQ)
2294 sess_update_stream_int(s, &s->si[1]);
Willy Tarreaub44c8732013-12-31 23:16:50 +01002295 if (s->si[1].state == SI_ST_REQ)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002296 sess_prepare_conn_req(s, &s->si[1]);
2297
Willy Tarreau9e5a3aa2013-12-31 23:32:12 +01002298 /* applets directly go to the ESTABLISHED state. Similarly,
2299 * servers experience the same fate when their connection
2300 * is reused.
2301 */
Willy Tarreaub44c8732013-12-31 23:16:50 +01002302 if (unlikely(s->si[1].state == SI_ST_EST))
2303 sess_establish(s, &s->si[1]);
Willy Tarreaufac4bd12013-11-30 09:21:49 +01002304
Willy Tarreaub44c8732013-12-31 23:16:50 +01002305 /* Now we can add the server name to a header (if requested) */
2306 /* check for HTTP mode and proxy server_name_hdr_name != NULL */
2307 if ((s->si[1].state >= SI_ST_CON) &&
2308 (s->be->server_id_hdr_name != NULL) &&
2309 (s->be->mode == PR_MODE_HTTP) &&
2310 objt_server(s->target)) {
2311 http_send_name_header(&s->txn, s->be, objt_server(s->target)->id);
Willy Tarreau1e5dfda2013-04-07 18:19:16 +02002312 }
2313
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002314 srv = objt_server(s->target);
Willy Tarreau827aee92011-03-10 16:55:02 +01002315 if (s->si[1].state == SI_ST_ASS && srv && srv->rdr_len && (s->flags & SN_REDIRECTABLE))
Willy Tarreau71241ab2012-12-27 11:30:54 +01002316 http_perform_server_redirect(s, &s->si[1]);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002317 } while (s->si[1].state == SI_ST_ASS);
2318 }
2319
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002320 /* Benchmarks have shown that it's optimal to do a full resync now */
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002321 if (s->req->prod->state == SI_ST_DIS || s->req->cons->state == SI_ST_DIS)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002322 goto resync_stream_interface;
2323
Willy Tarreau815a9b22010-07-27 17:15:12 +02002324 /* otherwise we want to check if we need to resync the req buffer or not */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002325 if ((s->req->flags ^ rqf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002326 goto resync_request;
2327
Willy Tarreau3deb3d02009-06-21 22:43:05 +02002328 /* perform output updates to the response buffer */
Willy Tarreau84455332009-03-15 22:34:05 +01002329
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002330 /* If noone is interested in analysing data, it's time to forward
Willy Tarreau31971e52009-09-20 12:07:52 +02002331 * everything. We configure the buffer to forward indefinitely.
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002332 * Note that we're checking CF_SHUTR_NOW as an indication of a possible
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002333 * recent call to channel_abort().
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002334 */
Willy Tarreau2b028dd2013-12-31 23:56:46 +01002335 if (unlikely(!s->rep->analysers &&
Willy Tarreaub31c9712012-11-11 23:05:39 +01002336 !(s->rep->flags & (CF_SHUTW|CF_SHUTR_NOW)) &&
Willy Tarreau31971e52009-09-20 12:07:52 +02002337 (s->rep->prod->state >= SI_ST_EST) &&
Willy Tarreau2b028dd2013-12-31 23:56:46 +01002338 (s->rep->to_forward != CHN_INFINITE_FORWARD))) {
Willy Tarreaub31c9712012-11-11 23:05:39 +01002339 /* This buffer is freewheeling, there's no analyser
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002340 * attached to it. If any data are left in, we'll permit them to
2341 * move.
2342 */
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002343 channel_auto_read(s->rep);
2344 channel_auto_close(s->rep);
Willy Tarreau9b28e032012-10-12 23:49:43 +02002345 buffer_flush(s->rep->buf);
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002346
Willy Tarreau09437572014-05-21 16:58:17 +02002347 s->rep->flags &= ~rp_oneshot;
2348 rp_oneshot = 0;
2349
Willy Tarreauda4d9fe2010-11-07 20:26:56 +01002350 /* We'll let data flow between the producer (if still connected)
2351 * to the consumer.
2352 */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002353 if (!(s->rep->flags & (CF_SHUTR|CF_SHUTW_NOW)))
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002354 channel_forward(s->rep, CHN_INFINITE_FORWARD);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002355
2356 /* if we have no analyser anymore in any direction and have a
Willy Tarreau05cdd962014-05-10 14:30:07 +02002357 * tunnel timeout set, use it now. Note that we must respect
2358 * the half-closed timeouts as well.
Willy Tarreauce887fd2012-05-12 12:50:00 +02002359 */
2360 if (!s->req->analysers && s->be->timeout.tunnel) {
2361 s->req->rto = s->req->wto = s->rep->rto = s->rep->wto =
2362 s->be->timeout.tunnel;
Willy Tarreau05cdd962014-05-10 14:30:07 +02002363
2364 if ((s->req->flags & CF_SHUTR) && tick_isset(s->fe->timeout.clientfin))
2365 s->rep->wto = s->fe->timeout.clientfin;
2366 if ((s->req->flags & CF_SHUTW) && tick_isset(s->be->timeout.serverfin))
2367 s->rep->rto = s->be->timeout.serverfin;
2368 if ((s->rep->flags & CF_SHUTR) && tick_isset(s->be->timeout.serverfin))
2369 s->req->wto = s->be->timeout.serverfin;
2370 if ((s->rep->flags & CF_SHUTW) && tick_isset(s->fe->timeout.clientfin))
2371 s->req->rto = s->fe->timeout.clientfin;
2372
2373 s->req->rex = tick_add(now_ms, s->req->rto);
2374 s->req->wex = tick_add(now_ms, s->req->wto);
2375 s->rep->rex = tick_add(now_ms, s->rep->rto);
2376 s->rep->wex = tick_add(now_ms, s->rep->wto);
Willy Tarreauce887fd2012-05-12 12:50:00 +02002377 }
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002378 }
Willy Tarreauf890dc92008-12-13 21:12:26 +01002379
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002380 /* check if it is wise to enable kernel splicing to forward response data */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002381 if (!(s->rep->flags & (CF_KERN_SPLICING|CF_SHUTR)) &&
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002382 s->rep->to_forward &&
2383 (global.tune.options & GTUNE_USE_SPLICE) &&
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002384 (objt_conn(s->si[0].end) && __objt_conn(s->si[0].end)->xprt && __objt_conn(s->si[0].end)->xprt->snd_pipe) &&
2385 (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 +01002386 (pipes_used < global.maxpipes) &&
2387 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_RTR) ||
2388 (((s->fe->options2|s->be->options2) & PR_O2_SPLIC_AUT) &&
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002389 (s->rep->flags & CF_STREAMER_FAST)))) {
2390 s->rep->flags |= CF_KERN_SPLICING;
Willy Tarreau7c84bab2009-03-08 21:38:23 +01002391 }
2392
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002393 /* reflect what the L7 analysers have seen last */
2394 rpf_last = s->rep->flags;
2395
2396 /*
2397 * Now forward all shutdown requests between both sides of the buffer
2398 */
2399
2400 /*
2401 * FIXME: this is probably where we should produce error responses.
2402 */
2403
Willy Tarreau6b66f3e2008-12-14 17:31:54 +01002404 /* first, let's check if the response buffer needs to shutdown(write) */
Willy Tarreaub31c9712012-11-11 23:05:39 +01002405 if (unlikely((s->rep->flags & (CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CLOSE|CF_SHUTR)) ==
Willy Tarreau05cdd962014-05-10 14:30:07 +02002406 (CF_AUTO_CLOSE|CF_SHUTR))) {
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002407 channel_shutw_now(s->rep);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002408 if (tick_isset(s->be->timeout.serverfin)) {
2409 s->req->wto = s->be->timeout.serverfin;
2410 s->req->wex = tick_add(now_ms, s->req->wto);
2411 }
2412 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002413
2414 /* shutdown(write) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002415 if (unlikely((s->rep->flags & (CF_SHUTW|CF_SHUTW_NOW)) == CF_SHUTW_NOW &&
Willy Tarreau05cdd962014-05-10 14:30:07 +02002416 channel_is_empty(s->rep))) {
Willy Tarreau73b013b2012-05-21 16:31:45 +02002417 si_shutw(s->rep->cons);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002418 if (tick_isset(s->fe->timeout.clientfin)) {
2419 s->req->rto = s->fe->timeout.clientfin;
2420 s->req->rex = tick_add(now_ms, s->req->rto);
2421 }
2422 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002423
2424 /* shutdown(write) done on the client side, we must stop the server too */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002425 if (unlikely((s->rep->flags & (CF_SHUTW|CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTW) &&
Willy Tarreau3dbc6942008-12-07 13:05:04 +01002426 !s->rep->analysers)
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002427 channel_shutr_now(s->rep);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002428
2429 /* shutdown(read) pending */
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002430 if (unlikely((s->rep->flags & (CF_SHUTR|CF_SHUTR_NOW)) == CF_SHUTR_NOW)) {
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002431 if (s->rep->prod->flags & SI_FL_NOHALF)
2432 s->rep->prod->flags |= SI_FL_NOLINGER;
Willy Tarreau73b013b2012-05-21 16:31:45 +02002433 si_shutr(s->rep->prod);
Willy Tarreau05cdd962014-05-10 14:30:07 +02002434 if (tick_isset(s->be->timeout.serverfin)) {
2435 s->req->wto = s->be->timeout.serverfin;
2436 s->req->wex = tick_add(now_ms, s->req->wto);
2437 }
Willy Tarreau7bb68ab2012-05-13 14:48:59 +02002438 }
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002439
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002440 if (s->req->prod->state == SI_ST_DIS || s->req->cons->state == SI_ST_DIS)
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002441 goto resync_stream_interface;
2442
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002443 if (s->req->flags != rqf_last)
2444 goto resync_request;
2445
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002446 if ((s->rep->flags ^ rpf_last) & CF_MASK_STATIC)
Willy Tarreau0be0ef92009-03-08 19:20:25 +01002447 goto resync_response;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002448
Willy Tarreau89f7ef22009-09-05 20:57:35 +02002449 /* we're interested in getting wakeups again */
2450 s->req->prod->flags &= ~SI_FL_DONT_WAKE;
2451 s->req->cons->flags &= ~SI_FL_DONT_WAKE;
2452
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002453 /* This is needed only when debugging is enabled, to indicate
2454 * client-side or server-side close. Please note that in the unlikely
2455 * event where both sides would close at once, the sequence is reported
2456 * on the server side first.
2457 */
2458 if (unlikely((global.mode & MODE_DEBUG) &&
2459 (!(global.mode & MODE_QUIET) ||
2460 (global.mode & MODE_VERBOSE)))) {
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002461 if (s->si[1].state == SI_ST_CLO &&
2462 s->si[1].prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002463 chunk_printf(&trash, "%08x:%s.srvcls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002464 s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002465 objt_conn(s->si[0].end) ? (unsigned short)objt_conn(s->si[0].end)->t.sock.fd : -1,
2466 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 +01002467 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002468 }
2469
2470 if (s->si[0].state == SI_ST_CLO &&
2471 s->si[0].prev_state == SI_ST_EST) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002472 chunk_printf(&trash, "%08x:%s.clicls[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002473 s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002474 objt_conn(s->si[0].end) ? (unsigned short)objt_conn(s->si[0].end)->t.sock.fd : -1,
2475 objt_conn(s->si[1].end) ? (unsigned short)objt_conn(s->si[1].end)->t.sock.fd : -1);
Willy Tarreau89efaed2013-12-13 15:14:55 +01002476 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002477 }
2478 }
2479
2480 if (likely((s->rep->cons->state != SI_ST_CLO) ||
2481 (s->req->cons->state > SI_ST_INI && s->req->cons->state < SI_ST_CLO))) {
2482
2483 if ((s->fe->options & PR_O_CONTSTATS) && (s->flags & SN_BE_ASSIGNED))
2484 session_process_counters(s);
2485
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002486 if (s->rep->cons->state == SI_ST_EST && obj_type(s->rep->cons->end) != OBJ_TYPE_APPCTX)
Willy Tarreau73b013b2012-05-21 16:31:45 +02002487 si_update(s->rep->cons);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002488
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002489 if (s->req->cons->state == SI_ST_EST && obj_type(s->req->cons->end) != OBJ_TYPE_APPCTX)
Willy Tarreau73b013b2012-05-21 16:31:45 +02002490 si_update(s->req->cons);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002491
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002492 s->req->flags &= ~(CF_READ_NULL|CF_READ_PARTIAL|CF_WRITE_NULL|CF_WRITE_PARTIAL|CF_READ_ATTACHED);
2493 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 +01002494 s->si[0].prev_state = s->si[0].state;
2495 s->si[1].prev_state = s->si[1].state;
Willy Tarreaub0ef7352008-12-14 13:26:20 +01002496 s->si[0].flags &= ~(SI_FL_ERR|SI_FL_EXP);
2497 s->si[1].flags &= ~(SI_FL_ERR|SI_FL_EXP);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002498
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002499 /* When any of the stream interfaces is attached to an applet,
2500 * we have to call it here. Note that this one may wake the
2501 * task up again. If at least one applet was called, the current
2502 * task might have been woken up, in which case we don't want it
2503 * to be requeued to the wait queue but rather to the run queue
2504 * to run ASAP. The bitwise "or" in the condition ensures that
2505 * both functions are always called and that we wake up if at
2506 * least one did something.
Willy Tarreau1accfc02009-09-05 20:57:35 +02002507 */
Willy Tarreaucf644ed2013-09-29 17:19:56 +02002508 if ((si_applet_call(s->req->cons) | si_applet_call(s->rep->cons)) != 0) {
Willy Tarreau1accfc02009-09-05 20:57:35 +02002509 if (task_in_rq(t)) {
Willy Tarreau1accfc02009-09-05 20:57:35 +02002510 t->expire = TICK_ETERNITY;
2511 return t;
2512 }
2513 }
2514
Willy Tarreau798f4322012-11-08 14:49:17 +01002515 update_exp_and_leave:
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002516 t->expire = tick_first(tick_first(s->req->rex, s->req->wex),
2517 tick_first(s->rep->rex, s->rep->wex));
2518 if (s->req->analysers)
2519 t->expire = tick_first(t->expire, s->req->analyse_exp);
2520
2521 if (s->si[0].exp)
2522 t->expire = tick_first(t->expire, s->si[0].exp);
2523
2524 if (s->si[1].exp)
2525 t->expire = tick_first(t->expire, s->si[1].exp);
2526
2527#ifdef DEBUG_FULL
Willy Tarreau127334e2009-03-28 10:47:26 +01002528 fprintf(stderr,
2529 "[%u] queuing with exp=%u req->rex=%u req->wex=%u req->ana_exp=%u"
2530 " rep->rex=%u rep->wex=%u, si[0].exp=%u, si[1].exp=%u, cs=%d, ss=%d\n",
2531 now_ms, t->expire, s->req->rex, s->req->wex, s->req->analyse_exp,
2532 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 +01002533#endif
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002534
2535#ifdef DEBUG_DEV
2536 /* this may only happen when no timeout is set or in case of an FSM bug */
Willy Tarreaud0a201b2009-03-08 15:53:06 +01002537 if (!tick_isset(t->expire))
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002538 ABORT_NOW();
2539#endif
Willy Tarreau26c25062009-03-08 09:38:41 +01002540 return t; /* nothing more to do */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002541 }
2542
2543 s->fe->feconn--;
2544 if (s->flags & SN_BE_ASSIGNED)
2545 s->be->beconn--;
Willy Tarreauaf7ad002010-08-31 15:39:26 +02002546 jobs--;
Thierry FOURNIERa47a94f2014-03-20 15:42:53 +01002547 if (s->listener) {
2548 if (!(s->listener->options & LI_O_UNLIMITED))
2549 actconn--;
2550 s->listener->nbconn--;
2551 if (s->listener->state == LI_FULL)
2552 resume_listener(s->listener);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002553
Thierry FOURNIERa47a94f2014-03-20 15:42:53 +01002554 /* Dequeues all of the listeners waiting for a resource */
2555 if (!LIST_ISEMPTY(&global_listener_queue))
2556 dequeue_all_listeners(&global_listener_queue);
Willy Tarreau08ceb102011-07-24 22:58:00 +02002557
Thierry FOURNIERa47a94f2014-03-20 15:42:53 +01002558 if (!LIST_ISEMPTY(&s->fe->listener_queue) &&
2559 (!s->fe->fe_sps_lim || freq_ctr_remain(&s->fe->fe_sess_per_sec, s->fe->fe_sps_lim, 0) > 0))
2560 dequeue_all_listeners(&s->fe->listener_queue);
2561 }
Willy Tarreau07687c12011-07-24 23:55:06 +02002562
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002563 if (unlikely((global.mode & MODE_DEBUG) &&
2564 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)))) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002565 chunk_printf(&trash, "%08x:%s.closed[%04x:%04x]\n",
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002566 s->uniq_id, s->be->id,
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002567 objt_conn(s->si[0].end) ? (unsigned short)objt_conn(s->si[0].end)->t.sock.fd : -1,
2568 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 +01002569 shut_your_big_mouth_gcc(write(1, trash.str, trash.len));
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002570 }
2571
2572 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
2573 session_process_counters(s);
2574
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002575 if (s->txn.status) {
2576 int n;
2577
2578 n = s->txn.status / 100;
2579 if (n < 1 || n > 5)
2580 n = 0;
2581
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002582 if (s->fe->mode == PR_MODE_HTTP) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002583 s->fe->fe_counters.p.http.rsp[n]++;
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->fe->fe_counters.p.http.comp_rsp++;
2586 }
Willy Tarreau24657792010-02-26 10:30:28 +01002587 if ((s->flags & SN_BE_ASSIGNED) &&
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002588 (s->be->mode == PR_MODE_HTTP)) {
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01002589 s->be->be_counters.p.http.rsp[n]++;
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002590 s->be->be_counters.p.http.cum_req++;
Willy Tarreau8139b992012-11-27 07:35:31 +01002591 if (s->comp_algo && (s->flags & SN_COMP_READY))
Willy Tarreau5e16cbc2012-11-24 14:54:13 +01002592 s->be->be_counters.p.http.comp_rsp++;
2593 }
Krzysztof Piotr Oledzkide71d162009-10-24 15:36:15 +02002594 }
2595
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002596 /* let's do a final log if we need it */
Willy Tarreaud79a3b22012-12-28 09:40:16 +01002597 if (!LIST_ISEMPTY(&s->fe->logformat) && s->logs.logwait &&
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002598 !(s->flags & SN_MONITOR) &&
2599 (!(s->fe->options & PR_O_NULLNOLOG) || s->req->total)) {
Willy Tarreaua5555ec2008-11-30 19:02:32 +01002600 s->do_log(s);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002601 }
2602
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002603 /* update time stats for this session */
2604 session_update_time_stats(s);
2605
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002606 /* the task MUST not be in the run queue anymore */
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002607 session_free(s);
Willy Tarreau26c25062009-03-08 09:38:41 +01002608 task_delete(t);
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002609 task_free(t);
Willy Tarreau26c25062009-03-08 09:38:41 +01002610 return NULL;
Willy Tarreau55a8d0e2008-11-30 18:47:21 +01002611}
2612
Willy Tarreau4bfc5802014-06-17 12:19:18 +02002613/* Update the session's backend and server time stats */
2614void session_update_time_stats(struct session *s)
2615{
2616 int t_request;
2617 int t_queue;
2618 int t_connect;
2619 int t_data;
2620 int t_close;
2621 struct server *srv;
2622
2623 t_request = 0;
2624 t_queue = s->logs.t_queue;
2625 t_connect = s->logs.t_connect;
2626 t_close = s->logs.t_close;
2627 t_data = s->logs.t_data;
2628
2629 if (s->be->mode != PR_MODE_HTTP)
2630 t_data = t_connect;
2631
2632 if (t_connect < 0 || t_data < 0)
2633 return;
2634
2635 if (tv_isge(&s->logs.tv_request, &s->logs.tv_accept))
2636 t_request = tv_ms_elapsed(&s->logs.tv_accept, &s->logs.tv_request);
2637
2638 t_data -= t_connect;
2639 t_connect -= t_queue;
2640 t_queue -= t_request;
2641
2642 srv = objt_server(s->target);
2643 if (srv) {
2644 swrate_add(&srv->counters.q_time, TIME_STATS_SAMPLES, t_queue);
2645 swrate_add(&srv->counters.c_time, TIME_STATS_SAMPLES, t_connect);
2646 swrate_add(&srv->counters.d_time, TIME_STATS_SAMPLES, t_data);
2647 swrate_add(&srv->counters.t_time, TIME_STATS_SAMPLES, t_close);
2648 }
2649 swrate_add(&s->be->be_counters.q_time, TIME_STATS_SAMPLES, t_queue);
2650 swrate_add(&s->be->be_counters.c_time, TIME_STATS_SAMPLES, t_connect);
2651 swrate_add(&s->be->be_counters.d_time, TIME_STATS_SAMPLES, t_data);
2652 swrate_add(&s->be->be_counters.t_time, TIME_STATS_SAMPLES, t_close);
2653}
2654
Willy Tarreau7c669d72008-06-20 15:04:11 +02002655/*
2656 * This function adjusts sess->srv_conn and maintains the previous and new
2657 * server's served session counts. Setting newsrv to NULL is enough to release
2658 * current connection slot. This function also notifies any LB algo which might
2659 * expect to be informed about any change in the number of active sessions on a
2660 * server.
2661 */
2662void sess_change_server(struct session *sess, struct server *newsrv)
2663{
2664 if (sess->srv_conn == newsrv)
2665 return;
2666
2667 if (sess->srv_conn) {
2668 sess->srv_conn->served--;
2669 if (sess->srv_conn->proxy->lbprm.server_drop_conn)
2670 sess->srv_conn->proxy->lbprm.server_drop_conn(sess->srv_conn);
Simon Hormanaf514952011-06-21 14:34:57 +09002671 session_del_srv_conn(sess);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002672 }
2673
2674 if (newsrv) {
2675 newsrv->served++;
2676 if (newsrv->proxy->lbprm.server_take_conn)
2677 newsrv->proxy->lbprm.server_take_conn(newsrv);
Simon Hormanaf514952011-06-21 14:34:57 +09002678 session_add_srv_conn(sess, newsrv);
Willy Tarreau7c669d72008-06-20 15:04:11 +02002679 }
2680}
2681
Willy Tarreau84455332009-03-15 22:34:05 +01002682/* Handle server-side errors for default protocols. It is called whenever a a
2683 * connection setup is aborted or a request is aborted in queue. It sets the
2684 * session termination flags so that the caller does not have to worry about
2685 * them. It's installed as ->srv_error for the server-side stream_interface.
2686 */
2687void default_srv_error(struct session *s, struct stream_interface *si)
2688{
2689 int err_type = si->err_type;
2690 int err = 0, fin = 0;
2691
2692 if (err_type & SI_ET_QUEUE_ABRT) {
2693 err = SN_ERR_CLICL;
2694 fin = SN_FINST_Q;
2695 }
2696 else if (err_type & SI_ET_CONN_ABRT) {
2697 err = SN_ERR_CLICL;
2698 fin = SN_FINST_C;
2699 }
2700 else if (err_type & SI_ET_QUEUE_TO) {
2701 err = SN_ERR_SRVTO;
2702 fin = SN_FINST_Q;
2703 }
2704 else if (err_type & SI_ET_QUEUE_ERR) {
2705 err = SN_ERR_SRVCL;
2706 fin = SN_FINST_Q;
2707 }
2708 else if (err_type & SI_ET_CONN_TO) {
2709 err = SN_ERR_SRVTO;
2710 fin = SN_FINST_C;
2711 }
2712 else if (err_type & SI_ET_CONN_ERR) {
2713 err = SN_ERR_SRVCL;
2714 fin = SN_FINST_C;
2715 }
Willy Tarreau2d400bb2012-05-14 12:11:47 +02002716 else if (err_type & SI_ET_CONN_RES) {
2717 err = SN_ERR_RESOURCE;
2718 fin = SN_FINST_C;
2719 }
Willy Tarreau84455332009-03-15 22:34:05 +01002720 else /* SI_ET_CONN_OTHER and others */ {
2721 err = SN_ERR_INTERNAL;
2722 fin = SN_FINST_C;
2723 }
2724
2725 if (!(s->flags & SN_ERR_MASK))
2726 s->flags |= err;
2727 if (!(s->flags & SN_FINST_MASK))
2728 s->flags |= fin;
2729}
Willy Tarreau7c669d72008-06-20 15:04:11 +02002730
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002731/* kill a session and set the termination flags to <why> (one of SN_ERR_*) */
2732void session_shutdown(struct session *session, int why)
2733{
Willy Tarreau03cdb7c2012-08-27 23:14:58 +02002734 if (session->req->flags & (CF_SHUTW|CF_SHUTW_NOW))
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002735 return;
2736
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002737 channel_shutw_now(session->req);
2738 channel_shutr_now(session->rep);
Willy Tarreaua2a64e92011-09-07 23:01:56 +02002739 session->task->nice = 1024;
2740 if (!(session->flags & SN_ERR_MASK))
2741 session->flags |= why;
2742 task_wakeup(session->task, TASK_WOKEN_OTHER);
2743}
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +02002744
Willy Tarreau8b22a712010-06-18 17:46:06 +02002745/************************************************************************/
2746/* All supported ACL keywords must be declared here. */
2747/************************************************************************/
2748
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002749/* Returns a pointer to a stkctr depending on the fetch keyword name.
2750 * It is designed to be called as sc[0-9]_* sc_* or src_* exclusively.
Willy Tarreaua65536c2013-07-22 22:40:11 +02002751 * sc[0-9]_* will return a pointer to the respective field in the
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002752 * session <l4>. sc_* requires an UINT argument specifying the stick
2753 * counter number. src_* will fill a locally allocated structure with
Willy Tarreaua65536c2013-07-22 22:40:11 +02002754 * the table and entry corresponding to what is specified with src_*.
Willy Tarreau0f791d42013-07-23 19:56:43 +02002755 * NULL may be returned if the designated stkctr is not tracked. For
2756 * the sc_* and sc[0-9]_* forms, an optional table argument may be
2757 * passed. When present, the currently tracked key is then looked up
2758 * in the specified table instead of the current table. The purpose is
2759 * to be able to convery multiple values per key (eg: have gpc0 from
2760 * multiple tables).
Willy Tarreaua65536c2013-07-22 22:40:11 +02002761 */
2762static struct stkctr *
2763smp_fetch_sc_stkctr(struct session *l4, const struct arg *args, const char *kw)
2764{
2765 static struct stkctr stkctr;
Willy Tarreau6a0b6bd2014-04-09 13:25:42 +02002766 struct stksess *stksess;
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002767 unsigned int num = kw[2] - '0';
Willy Tarreau0f791d42013-07-23 19:56:43 +02002768 int arg = 0;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002769
Willy Tarreau0f791d42013-07-23 19:56:43 +02002770 if (num == '_' - '0') {
2771 /* sc_* variant, args[0] = ctr# (mandatory) */
2772 num = args[arg++].data.uint;
Willy Tarreau4d4149c2013-07-23 19:33:46 +02002773 if (num >= MAX_SESS_STKCTR)
2774 return NULL;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002775 }
Willy Tarreau0f791d42013-07-23 19:56:43 +02002776 else if (num > 9) { /* src_* variant, args[0] = table */
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002777 struct stktable_key *key;
2778 struct connection *conn = objt_conn(l4->si[0].end);
2779
2780 if (!conn)
2781 return NULL;
Willy Tarreaua65536c2013-07-22 22:40:11 +02002782
Thierry FOURNIER74c219d2014-04-14 14:35:40 +02002783 key = addr_to_stktable_key(&conn->addr.from, args->data.prx->table.type);
Willy Tarreaua65536c2013-07-22 22:40:11 +02002784 if (!key)
2785 return NULL;
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002786
Willy Tarreaua65536c2013-07-22 22:40:11 +02002787 stkctr.table = &args->data.prx->table;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002788 stkctr_set_entry(&stkctr, stktable_lookup_key(stkctr.table, key));
Willy Tarreaua65536c2013-07-22 22:40:11 +02002789 return &stkctr;
2790 }
Willy Tarreau0f791d42013-07-23 19:56:43 +02002791
2792 /* Here, <num> contains the counter number from 0 to 9 for
2793 * the sc[0-9]_ form, or even higher using sc_(num) if needed.
2794 * args[arg] is the first optional argument.
2795 */
Willy Tarreau6a0b6bd2014-04-09 13:25:42 +02002796 stksess = stkctr_entry(&l4->stkctr[num]);
2797 if (!stksess)
2798 return NULL;
2799
Willy Tarreau0f791d42013-07-23 19:56:43 +02002800 if (unlikely(args[arg].type == ARGT_TAB)) {
2801 /* an alternate table was specified, let's look up the same key there */
2802 stkctr.table = &args[arg].data.prx->table;
Willy Tarreau6a0b6bd2014-04-09 13:25:42 +02002803 stkctr_set_entry(&stkctr, stktable_lookup(stkctr.table, stksess));
Willy Tarreau0f791d42013-07-23 19:56:43 +02002804 return &stkctr;
2805 }
Willy Tarreau6a0b6bd2014-04-09 13:25:42 +02002806 return &l4->stkctr[num];
Willy Tarreaua65536c2013-07-22 22:40:11 +02002807}
2808
Willy Tarreau88821242013-07-22 18:29:29 +02002809/* set return a boolean indicating if the requested session counter is
2810 * currently being tracked or not.
2811 * Supports being called as "sc[0-9]_tracked" only.
2812 */
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002813static int
Willy Tarreau88821242013-07-22 18:29:29 +02002814smp_fetch_sc_tracked(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02002815 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002816{
2817 smp->flags = SMP_F_VOL_TEST;
2818 smp->type = SMP_T_BOOL;
Thierry FOURNIERd988f212014-04-15 01:15:52 +02002819 smp->data.uint = !!smp_fetch_sc_stkctr(l4, args, kw);
Willy Tarreau6f1615f2013-06-03 15:15:22 +02002820 return 1;
2821}
2822
Willy Tarreau30b20462013-07-22 19:46:52 +02002823/* set <smp> to the General Purpose Counter 0 value from the session's tracked
2824 * frontend counters or from the src.
2825 * Supports being called as "sc[0-9]_get_gpc0" or "src_get_gpc0" only. Value
2826 * zero is returned if the key is new.
2827 */
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002828static int
Willy Tarreau30b20462013-07-22 19:46:52 +02002829smp_fetch_sc_get_gpc0(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2830 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002831{
Willy Tarreau30b20462013-07-22 19:46:52 +02002832 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2833
2834 if (!stkctr)
2835 return 0;
2836
Willy Tarreau37406352012-04-23 16:16:37 +02002837 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002838 smp->type = SMP_T_UINT;
2839 smp->data.uint = 0;
Willy Tarreau30b20462013-07-22 19:46:52 +02002840
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002841 if (stkctr_entry(stkctr) != NULL) {
2842 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0);
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002843 if (!ptr)
2844 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002845 smp->data.uint = stktable_data_cast(ptr, gpc0);
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002846 }
2847 return 1;
2848}
2849
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002850/* set <smp> to the General Purpose Counter 0's event rate from the session's
2851 * tracked frontend counters or from the src.
2852 * Supports being called as "sc[0-9]_gpc0_rate" or "src_gpc0_rate" only.
2853 * Value zero is returned if the key is new.
2854 */
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002855static int
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002856smp_fetch_sc_gpc0_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2857 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002858{
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002859 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2860
2861 if (!stkctr)
2862 return 0;
2863
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002864 smp->flags = SMP_F_VOL_TEST;
2865 smp->type = SMP_T_UINT;
2866 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002867 if (stkctr_entry(stkctr) != NULL) {
2868 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0_RATE);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002869 if (!ptr)
2870 return 0; /* parameter not stored */
2871 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, gpc0_rate),
Willy Tarreaub5e0af02013-07-22 23:47:07 +02002872 stkctr->table->data_arg[STKTABLE_DT_GPC0_RATE].u);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002873 }
2874 return 1;
2875}
2876
Willy Tarreau710d38c2013-07-23 00:07:04 +02002877/* Increment the General Purpose Counter 0 value from the session's tracked
2878 * frontend counters and return it into temp integer.
2879 * Supports being called as "sc[0-9]_inc_gpc0" or "src_inc_gpc0" only.
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002880 */
2881static int
Willy Tarreau710d38c2013-07-23 00:07:04 +02002882smp_fetch_sc_inc_gpc0(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2883 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002884{
Willy Tarreau710d38c2013-07-23 00:07:04 +02002885 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2886
2887 if (!stkctr)
2888 return 0;
2889
Willy Tarreau37406352012-04-23 16:16:37 +02002890 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002891 smp->type = SMP_T_UINT;
2892 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002893 if (stkctr_entry(stkctr) != NULL) {
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002894 void *ptr;
2895
2896 /* First, update gpc0_rate if it's tracked. Second, update its
2897 * gpc0 if tracked. Returns gpc0's value otherwise the curr_ctr.
2898 */
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002899 ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0_RATE);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002900 if (ptr) {
2901 update_freq_ctr_period(&stktable_data_cast(ptr, gpc0_rate),
Willy Tarreau710d38c2013-07-23 00:07:04 +02002902 stkctr->table->data_arg[STKTABLE_DT_GPC0_RATE].u, 1);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002903 smp->data.uint = (&stktable_data_cast(ptr, gpc0_rate))->curr_ctr;
2904 }
2905
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002906 ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0);
Willy Tarreauba2ffd12013-05-29 15:54:14 +02002907 if (ptr)
2908 smp->data.uint = ++stktable_data_cast(ptr, gpc0);
2909
Willy Tarreauc3bd9722010-06-20 12:47:25 +02002910 }
2911 return 1;
2912}
2913
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002914/* Clear the General Purpose Counter 0 value from the session's tracked
2915 * frontend counters and return its previous value into temp integer.
2916 * Supports being called as "sc[0-9]_clr_gpc0" or "src_clr_gpc0" only.
Willy Tarreauf73cd112011-08-13 01:45:16 +02002917 */
2918static int
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002919smp_fetch_sc_clr_gpc0(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2920 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauf73cd112011-08-13 01:45:16 +02002921{
Willy Tarreaub9f441d2013-07-23 00:10:35 +02002922 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2923
2924 if (!stkctr)
2925 return 0;
2926
Willy Tarreau37406352012-04-23 16:16:37 +02002927 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002928 smp->type = SMP_T_UINT;
2929 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002930 if (stkctr_entry(stkctr) != NULL) {
2931 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_GPC0);
Willy Tarreauf73cd112011-08-13 01:45:16 +02002932 if (!ptr)
2933 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002934 smp->data.uint = stktable_data_cast(ptr, gpc0);
Willy Tarreauf73cd112011-08-13 01:45:16 +02002935 stktable_data_cast(ptr, gpc0) = 0;
2936 }
2937 return 1;
2938}
2939
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002940/* set <smp> to the cumulated number of connections from the session's tracked
2941 * frontend counters. Supports being called as "sc[0-9]_conn_cnt" or
2942 * "src_conn_cnt" only.
2943 */
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002944static int
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002945smp_fetch_sc_conn_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2946 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002947{
Willy Tarreau3b46c5c2013-07-23 00:22:50 +02002948 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2949
2950 if (!stkctr)
2951 return 0;
2952
Willy Tarreau37406352012-04-23 16:16:37 +02002953 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002954 smp->type = SMP_T_UINT;
2955 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002956 if (stkctr_entry(stkctr) != NULL) {
2957 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_CONN_CNT);
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002958 if (!ptr)
2959 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002960 smp->data.uint = stktable_data_cast(ptr, conn_cnt);
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002961 }
Willy Tarreau9a3f8492010-06-18 19:53:25 +02002962 return 1;
2963}
2964
Willy Tarreauc8c65702013-07-23 15:09:35 +02002965/* set <smp> to the connection rate from the session's tracked frontend
2966 * counters. Supports being called as "sc[0-9]_conn_rate" or "src_conn_rate"
2967 * only.
2968 */
Willy Tarreau91c43d72010-06-20 11:19:22 +02002969static int
Willy Tarreauc8c65702013-07-23 15:09:35 +02002970smp_fetch_sc_conn_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
2971 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau91c43d72010-06-20 11:19:22 +02002972{
Willy Tarreauc8c65702013-07-23 15:09:35 +02002973 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
2974
2975 if (!stkctr)
2976 return 0;
2977
Willy Tarreau37406352012-04-23 16:16:37 +02002978 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02002979 smp->type = SMP_T_UINT;
2980 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01002981 if (stkctr_entry(stkctr) != NULL) {
2982 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_CONN_RATE);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002983 if (!ptr)
2984 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02002985 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, conn_rate),
Willy Tarreauc8c65702013-07-23 15:09:35 +02002986 stkctr->table->data_arg[STKTABLE_DT_CONN_RATE].u);
Willy Tarreau91c43d72010-06-20 11:19:22 +02002987 }
2988 return 1;
2989}
2990
Willy Tarreaua5e37562011-12-16 17:06:15 +01002991/* set temp integer to the number of connections from the session's source address
Willy Tarreau8b22a712010-06-18 17:46:06 +02002992 * in the table pointed to by expr, after updating it.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02002993 * Accepts exactly 1 argument of type table.
Willy Tarreau8b22a712010-06-18 17:46:06 +02002994 */
2995static int
Willy Tarreau281c7992013-01-08 01:23:27 +01002996smp_fetch_src_updt_conn_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02002997 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau8b22a712010-06-18 17:46:06 +02002998{
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002999 struct connection *conn = objt_conn(l4->si[0].end);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003000 struct stksess *ts;
3001 struct stktable_key *key;
3002 void *ptr;
3003
Willy Tarreaub363a1f2013-10-01 10:45:07 +02003004 if (!conn)
3005 return 0;
3006
Thierry FOURNIER74c219d2014-04-14 14:35:40 +02003007 key = addr_to_stktable_key(&conn->addr.from, px->table.type);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003008 if (!key)
David du Colombier4f92d322011-03-24 11:09:31 +01003009 return 0;
Willy Tarreau8b22a712010-06-18 17:46:06 +02003010
Willy Tarreau24e32d82012-04-23 23:55:44 +02003011 px = args->data.prx;
Willy Tarreau8b22a712010-06-18 17:46:06 +02003012
Willy Tarreau1f7e9252010-06-20 12:27:21 +02003013 if ((ts = stktable_update_key(&px->table, key)) == NULL)
3014 /* entry does not exist and could not be created */
3015 return 0;
Willy Tarreau8b22a712010-06-18 17:46:06 +02003016
3017 ptr = stktable_data_ptr(&px->table, ts, STKTABLE_DT_CONN_CNT);
3018 if (!ptr)
3019 return 0; /* parameter not stored in this table */
3020
Willy Tarreauf853c462012-04-23 18:53:56 +02003021 smp->type = SMP_T_UINT;
3022 smp->data.uint = ++stktable_data_cast(ptr, conn_cnt);
Willy Tarreau37406352012-04-23 16:16:37 +02003023 smp->flags = SMP_F_VOL_TEST;
Willy Tarreau8b22a712010-06-18 17:46:06 +02003024 return 1;
3025}
3026
Willy Tarreauf44a5532013-07-23 15:17:53 +02003027/* set <smp> to the number of concurrent connections from the session's tracked
3028 * frontend counters. Supports being called as "sc[0-9]_conn_cur" or
3029 * "src_conn_cur" only.
3030 */
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02003031static int
Willy Tarreauf44a5532013-07-23 15:17:53 +02003032smp_fetch_sc_conn_cur(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3033 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02003034{
Willy Tarreauf44a5532013-07-23 15:17:53 +02003035 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3036
3037 if (!stkctr)
3038 return 0;
3039
Willy Tarreau37406352012-04-23 16:16:37 +02003040 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003041 smp->type = SMP_T_UINT;
3042 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003043 if (stkctr_entry(stkctr) != NULL) {
3044 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_CONN_CUR);
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02003045 if (!ptr)
3046 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003047 smp->data.uint = stktable_data_cast(ptr, conn_cur);
Willy Tarreau9b0ddcf2010-06-18 21:14:36 +02003048 }
3049 return 1;
3050}
3051
Willy Tarreau20843082013-07-23 15:35:33 +02003052/* set <smp> to the cumulated number of sessions from the session's tracked
3053 * frontend counters. Supports being called as "sc[0-9]_sess_cnt" or
3054 * "src_sess_cnt" only.
3055 */
Willy Tarreauf4d17d92010-06-18 22:10:12 +02003056static int
Willy Tarreau20843082013-07-23 15:35:33 +02003057smp_fetch_sc_sess_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3058 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauf4d17d92010-06-18 22:10:12 +02003059{
Willy Tarreau20843082013-07-23 15:35:33 +02003060 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3061
3062 if (!stkctr)
3063 return 0;
3064
Willy Tarreau37406352012-04-23 16:16:37 +02003065 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003066 smp->type = SMP_T_UINT;
3067 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003068 if (stkctr_entry(stkctr) != NULL) {
3069 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_SESS_CNT);
Willy Tarreauf4d17d92010-06-18 22:10:12 +02003070 if (!ptr)
3071 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003072 smp->data.uint = stktable_data_cast(ptr, sess_cnt);
Willy Tarreauf4d17d92010-06-18 22:10:12 +02003073 }
3074 return 1;
3075}
3076
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02003077/* set <smp> to the session rate from the session's tracked frontend counters.
3078 * Supports being called as "sc[0-9]_sess_rate" or "src_sess_rate" only.
3079 */
Willy Tarreau91c43d72010-06-20 11:19:22 +02003080static int
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02003081smp_fetch_sc_sess_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3082 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau91c43d72010-06-20 11:19:22 +02003083{
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02003084 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3085
3086 if (!stkctr)
3087 return 0;
3088
Willy Tarreau37406352012-04-23 16:16:37 +02003089 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003090 smp->type = SMP_T_UINT;
3091 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003092 if (stkctr_entry(stkctr) != NULL) {
3093 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_SESS_RATE);
Willy Tarreau91c43d72010-06-20 11:19:22 +02003094 if (!ptr)
3095 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003096 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, sess_rate),
Willy Tarreau3a96f3f2013-07-23 15:48:01 +02003097 stkctr->table->data_arg[STKTABLE_DT_SESS_RATE].u);
Willy Tarreau91c43d72010-06-20 11:19:22 +02003098 }
3099 return 1;
3100}
3101
Willy Tarreau91200da2013-07-23 15:55:19 +02003102/* set <smp> to the cumulated number of HTTP requests from the session's tracked
3103 * frontend counters. Supports being called as "sc[0-9]_http_req_cnt" or
3104 * "src_http_req_cnt" only.
3105 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02003106static int
Willy Tarreau91200da2013-07-23 15:55:19 +02003107smp_fetch_sc_http_req_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3108 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02003109{
Willy Tarreau91200da2013-07-23 15:55:19 +02003110 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3111
3112 if (!stkctr)
3113 return 0;
3114
Willy Tarreau37406352012-04-23 16:16:37 +02003115 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003116 smp->type = SMP_T_UINT;
3117 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003118 if (stkctr_entry(stkctr) != NULL) {
3119 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_HTTP_REQ_CNT);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003120 if (!ptr)
3121 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003122 smp->data.uint = stktable_data_cast(ptr, http_req_cnt);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003123 }
3124 return 1;
3125}
3126
Willy Tarreaucf477632013-07-23 16:04:37 +02003127/* set <smp> to the HTTP request rate from the session's tracked frontend
3128 * counters. Supports being called as "sc[0-9]_http_req_rate" or
3129 * "src_http_req_rate" only.
3130 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02003131static int
Willy Tarreaucf477632013-07-23 16:04:37 +02003132smp_fetch_sc_http_req_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3133 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02003134{
Willy Tarreaucf477632013-07-23 16:04:37 +02003135 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3136
3137 if (!stkctr)
3138 return 0;
3139
Willy Tarreau37406352012-04-23 16:16:37 +02003140 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003141 smp->type = SMP_T_UINT;
3142 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003143 if (stkctr_entry(stkctr) != NULL) {
3144 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_HTTP_REQ_RATE);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003145 if (!ptr)
3146 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003147 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, http_req_rate),
Willy Tarreaucf477632013-07-23 16:04:37 +02003148 stkctr->table->data_arg[STKTABLE_DT_HTTP_REQ_RATE].u);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003149 }
3150 return 1;
3151}
3152
Willy Tarreau30d07c32013-07-23 16:45:38 +02003153/* set <smp> to the cumulated number of HTTP requests errors from the session's
3154 * tracked frontend counters. Supports being called as "sc[0-9]_http_err_cnt" or
3155 * "src_http_err_cnt" only.
3156 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02003157static int
Willy Tarreau30d07c32013-07-23 16:45:38 +02003158smp_fetch_sc_http_err_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3159 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02003160{
Willy Tarreau30d07c32013-07-23 16:45:38 +02003161 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3162
3163 if (!stkctr)
3164 return 0;
3165
Willy Tarreau37406352012-04-23 16:16:37 +02003166 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003167 smp->type = SMP_T_UINT;
3168 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003169 if (stkctr_entry(stkctr) != NULL) {
3170 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_HTTP_ERR_CNT);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003171 if (!ptr)
3172 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003173 smp->data.uint = stktable_data_cast(ptr, http_err_cnt);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003174 }
3175 return 1;
3176}
3177
Willy Tarreau9daf2622013-07-23 16:48:54 +02003178/* set <smp> to the HTTP request error rate from the session's tracked frontend
3179 * counters. Supports being called as "sc[0-9]_http_err_rate" or
3180 * "src_http_err_rate" only.
3181 */
Willy Tarreauda7ff642010-06-23 11:44:09 +02003182static int
Willy Tarreau9daf2622013-07-23 16:48:54 +02003183smp_fetch_sc_http_err_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3184 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauda7ff642010-06-23 11:44:09 +02003185{
Willy Tarreau9daf2622013-07-23 16:48:54 +02003186 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3187
3188 if (!stkctr)
3189 return 0;
3190
Willy Tarreau37406352012-04-23 16:16:37 +02003191 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003192 smp->type = SMP_T_UINT;
3193 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003194 if (stkctr_entry(stkctr) != NULL) {
3195 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_HTTP_ERR_RATE);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003196 if (!ptr)
3197 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003198 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, http_err_rate),
Willy Tarreau9daf2622013-07-23 16:48:54 +02003199 stkctr->table->data_arg[STKTABLE_DT_HTTP_ERR_RATE].u);
Willy Tarreauda7ff642010-06-23 11:44:09 +02003200 }
3201 return 1;
3202}
3203
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003204/* set <smp> to the number of kbytes received from clients, as found in the
3205 * session's tracked frontend counters. Supports being called as
3206 * "sc[0-9]_kbytes_in" or "src_kbytes_in" only.
3207 */
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003208static int
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003209smp_fetch_sc_kbytes_in(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3210 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003211{
Willy Tarreau5077d4b2013-07-23 17:17:10 +02003212 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3213
3214 if (!stkctr)
3215 return 0;
3216
Willy Tarreau37406352012-04-23 16:16:37 +02003217 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003218 smp->type = SMP_T_UINT;
3219 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003220 if (stkctr_entry(stkctr) != NULL) {
3221 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_IN_CNT);
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003222 if (!ptr)
3223 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003224 smp->data.uint = stktable_data_cast(ptr, bytes_in_cnt) >> 10;
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003225 }
3226 return 1;
3227}
3228
Willy Tarreau613fe992013-07-23 17:39:19 +02003229/* set <smp> to the data rate received from clients in bytes/s, as found
3230 * in the session's tracked frontend counters. Supports being called as
3231 * "sc[0-9]_bytes_in_rate" or "src_bytes_in_rate" only.
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003232 */
3233static int
Willy Tarreau613fe992013-07-23 17:39:19 +02003234smp_fetch_sc_bytes_in_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3235 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003236{
Willy Tarreau613fe992013-07-23 17:39:19 +02003237 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3238
3239 if (!stkctr)
3240 return 0;
3241
Willy Tarreau37406352012-04-23 16:16:37 +02003242 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003243 smp->type = SMP_T_UINT;
3244 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003245 if (stkctr_entry(stkctr) != NULL) {
3246 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_IN_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003247 if (!ptr)
3248 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003249 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, bytes_in_rate),
Willy Tarreau613fe992013-07-23 17:39:19 +02003250 stkctr->table->data_arg[STKTABLE_DT_BYTES_IN_RATE].u);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003251 }
3252 return 1;
3253}
3254
Willy Tarreau53aea102013-07-23 17:39:02 +02003255/* set <smp> to the number of kbytes sent to clients, as found in the
3256 * session's tracked frontend counters. Supports being called as
3257 * "sc[0-9]_kbytes_out" or "src_kbytes_out" only.
3258 */
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003259static int
Willy Tarreau53aea102013-07-23 17:39:02 +02003260smp_fetch_sc_kbytes_out(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3261 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau1aa006f2010-06-18 21:52:52 +02003262{
Willy Tarreau53aea102013-07-23 17:39:02 +02003263 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3264
3265 if (!stkctr)
3266 return 0;
3267
Willy Tarreau37406352012-04-23 16:16:37 +02003268 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003269 smp->type = SMP_T_UINT;
3270 smp->data.uint = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003271 if (stkctr_entry(stkctr) != NULL) {
3272 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_OUT_CNT);
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003273 if (!ptr)
3274 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003275 smp->data.uint = stktable_data_cast(ptr, bytes_out_cnt) >> 10;
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003276 }
Willy Tarreau855e4bb2010-06-18 18:33:32 +02003277 return 1;
3278}
3279
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003280/* set <smp> to the data rate sent to clients in bytes/s, as found in the
3281 * session's tracked frontend counters. Supports being called as
3282 * "sc[0-9]_bytes_out_rate" or "src_bytes_out_rate" only.
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003283 */
3284static int
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003285smp_fetch_sc_bytes_out_rate(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
3286 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003287{
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003288 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
3289
3290 if (!stkctr)
3291 return 0;
3292
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 = 0;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003296 if (stkctr_entry(stkctr) != NULL) {
3297 void *ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_BYTES_OUT_RATE);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003298 if (!ptr)
3299 return 0; /* parameter not stored */
Willy Tarreauf853c462012-04-23 18:53:56 +02003300 smp->data.uint = read_freq_ctr_period(&stktable_data_cast(ptr, bytes_out_rate),
Willy Tarreaua0b68ed2013-07-23 18:26:32 +02003301 stkctr->table->data_arg[STKTABLE_DT_BYTES_OUT_RATE].u);
Willy Tarreau6c59e0a2010-06-20 11:56:30 +02003302 }
3303 return 1;
3304}
3305
Willy Tarreau563eef42013-07-23 18:32:02 +02003306/* set <smp> to the number of active trackers on the SC entry in the session's
3307 * tracked frontend counters. Supports being called as "sc[0-9]_trackers" only.
3308 */
Willy Tarreau2406db42012-12-09 12:16:43 +01003309static int
Willy Tarreau563eef42013-07-23 18:32:02 +02003310smp_fetch_sc_trackers(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02003311 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreau2406db42012-12-09 12:16:43 +01003312{
Willy Tarreau563eef42013-07-23 18:32:02 +02003313 struct stkctr *stkctr = smp_fetch_sc_stkctr(l4, args, kw);
Willy Tarreau2406db42012-12-09 12:16:43 +01003314
Willy Tarreau563eef42013-07-23 18:32:02 +02003315 if (!stkctr)
Willy Tarreau2406db42012-12-09 12:16:43 +01003316 return 0;
3317
Willy Tarreau563eef42013-07-23 18:32:02 +02003318 smp->flags = SMP_F_VOL_TEST;
3319 smp->type = SMP_T_UINT;
Willy Tarreaucc08d2c2014-01-28 23:18:23 +01003320 smp->data.uint = stkctr_entry(stkctr)->ref_cnt;
Willy Tarreau563eef42013-07-23 18:32:02 +02003321 return 1;
Willy Tarreaue25c9172013-05-28 18:32:20 +02003322}
3323
Willy Tarreau34db1082012-04-19 17:16:54 +02003324/* set temp integer to the number of used entries in the table pointed to by expr.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02003325 * Accepts exactly 1 argument of type table.
Willy Tarreau34db1082012-04-19 17:16:54 +02003326 */
Willy Tarreauc735a072011-03-29 00:57:02 +02003327static int
Willy Tarreau281c7992013-01-08 01:23:27 +01003328smp_fetch_table_cnt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02003329 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc735a072011-03-29 00:57:02 +02003330{
Willy Tarreau37406352012-04-23 16:16:37 +02003331 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003332 smp->type = SMP_T_UINT;
Willy Tarreau24e32d82012-04-23 23:55:44 +02003333 smp->data.uint = args->data.prx->table.current;
Willy Tarreauc735a072011-03-29 00:57:02 +02003334 return 1;
3335}
3336
Willy Tarreau34db1082012-04-19 17:16:54 +02003337/* set temp integer to the number of free entries in the table pointed to by expr.
Willy Tarreau0146c2e2012-04-20 11:37:56 +02003338 * Accepts exactly 1 argument of type table.
Willy Tarreau34db1082012-04-19 17:16:54 +02003339 */
Willy Tarreauc735a072011-03-29 00:57:02 +02003340static int
Willy Tarreau281c7992013-01-08 01:23:27 +01003341smp_fetch_table_avl(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
Willy Tarreauef38c392013-07-22 16:29:32 +02003342 const struct arg *args, struct sample *smp, const char *kw)
Willy Tarreauc735a072011-03-29 00:57:02 +02003343{
Willy Tarreau24e32d82012-04-23 23:55:44 +02003344 px = args->data.prx;
Willy Tarreau37406352012-04-23 16:16:37 +02003345 smp->flags = SMP_F_VOL_TEST;
Willy Tarreauf853c462012-04-23 18:53:56 +02003346 smp->type = SMP_T_UINT;
3347 smp->data.uint = px->table.size - px->table.current;
Willy Tarreauc735a072011-03-29 00:57:02 +02003348 return 1;
3349}
Willy Tarreau8b22a712010-06-18 17:46:06 +02003350
Willy Tarreau61612d42012-04-19 18:42:05 +02003351/* Note: must not be declared <const> as its list will be overwritten.
3352 * Please take care of keeping this list alphabetically sorted.
3353 */
Willy Tarreaudc13c112013-06-21 23:16:39 +02003354static struct acl_kw_list acl_kws = {ILH, {
Willy Tarreau281c7992013-01-08 01:23:27 +01003355 { /* END */ },
Willy Tarreau8b22a712010-06-18 17:46:06 +02003356}};
3357
Willy Tarreau281c7992013-01-08 01:23:27 +01003358/* Note: must not be declared <const> as its list will be overwritten.
3359 * Please take care of keeping this list alphabetically sorted.
3360 */
Willy Tarreaudc13c112013-06-21 23:16:39 +02003361static struct sample_fetch_kw_list smp_fetch_keywords = {ILH, {
Willy Tarreau0f791d42013-07-23 19:56:43 +02003362 { "sc_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3363 { "sc_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3364 { "sc_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3365 { "sc_conn_cnt", smp_fetch_sc_conn_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3366 { "sc_conn_cur", smp_fetch_sc_conn_cur, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3367 { "sc_conn_rate", smp_fetch_sc_conn_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3368 { "sc_get_gpc0", smp_fetch_sc_get_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3369 { "sc_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3370 { "sc_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3371 { "sc_http_err_rate", smp_fetch_sc_http_err_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3372 { "sc_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3373 { "sc_http_req_rate", smp_fetch_sc_http_req_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3374 { "sc_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3375 { "sc_kbytes_in", smp_fetch_sc_kbytes_in, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3376 { "sc_kbytes_out", smp_fetch_sc_kbytes_out, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3377 { "sc_sess_cnt", smp_fetch_sc_sess_cnt, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3378 { "sc_sess_rate", smp_fetch_sc_sess_rate, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3379 { "sc_tracked", smp_fetch_sc_tracked, ARG2(1,UINT,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3380 { "sc_trackers", smp_fetch_sc_trackers, ARG2(1,UINT,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3381 { "sc0_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3382 { "sc0_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3383 { "sc0_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3384 { "sc0_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3385 { "sc0_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3386 { "sc0_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3387 { "sc0_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3388 { "sc0_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3389 { "sc0_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3390 { "sc0_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3391 { "sc0_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3392 { "sc0_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3393 { "sc0_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3394 { "sc0_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3395 { "sc0_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3396 { "sc0_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3397 { "sc0_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3398 { "sc0_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3399 { "sc0_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3400 { "sc1_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3401 { "sc1_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3402 { "sc1_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3403 { "sc1_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3404 { "sc1_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3405 { "sc1_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3406 { "sc1_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3407 { "sc1_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3408 { "sc1_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3409 { "sc1_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3410 { "sc1_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3411 { "sc1_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3412 { "sc1_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3413 { "sc1_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3414 { "sc1_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3415 { "sc1_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3416 { "sc1_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3417 { "sc1_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3418 { "sc1_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3419 { "sc2_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3420 { "sc2_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3421 { "sc2_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3422 { "sc2_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3423 { "sc2_conn_cur", smp_fetch_sc_conn_cur, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3424 { "sc2_conn_rate", smp_fetch_sc_conn_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3425 { "sc2_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3426 { "sc2_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3427 { "sc2_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3428 { "sc2_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3429 { "sc2_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3430 { "sc2_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3431 { "sc2_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3432 { "sc2_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3433 { "sc2_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3434 { "sc2_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3435 { "sc2_sess_rate", smp_fetch_sc_sess_rate, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3436 { "sc2_tracked", smp_fetch_sc_tracked, ARG1(0,TAB), NULL, SMP_T_BOOL, SMP_USE_INTRN, },
3437 { "sc2_trackers", smp_fetch_sc_trackers, ARG1(0,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3438 { "src_bytes_in_rate", smp_fetch_sc_bytes_in_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3439 { "src_bytes_out_rate", smp_fetch_sc_bytes_out_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3440 { "src_clr_gpc0", smp_fetch_sc_clr_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3441 { "src_conn_cnt", smp_fetch_sc_conn_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3442 { "src_conn_cur", smp_fetch_sc_conn_cur, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3443 { "src_conn_rate", smp_fetch_sc_conn_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3444 { "src_get_gpc0", smp_fetch_sc_get_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3445 { "src_gpc0_rate", smp_fetch_sc_gpc0_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3446 { "src_http_err_cnt", smp_fetch_sc_http_err_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3447 { "src_http_err_rate", smp_fetch_sc_http_err_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3448 { "src_http_req_cnt", smp_fetch_sc_http_req_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3449 { "src_http_req_rate", smp_fetch_sc_http_req_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3450 { "src_inc_gpc0", smp_fetch_sc_inc_gpc0, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3451 { "src_kbytes_in", smp_fetch_sc_kbytes_in, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3452 { "src_kbytes_out", smp_fetch_sc_kbytes_out, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3453 { "src_sess_cnt", smp_fetch_sc_sess_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3454 { "src_sess_rate", smp_fetch_sc_sess_rate, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3455 { "src_updt_conn_cnt", smp_fetch_src_updt_conn_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_L4CLI, },
3456 { "table_avl", smp_fetch_table_avl, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
3457 { "table_cnt", smp_fetch_table_cnt, ARG1(1,TAB), NULL, SMP_T_UINT, SMP_USE_INTRN, },
Willy Tarreau281c7992013-01-08 01:23:27 +01003458 { /* END */ },
3459}};
3460
Willy Tarreau8b22a712010-06-18 17:46:06 +02003461__attribute__((constructor))
3462static void __session_init(void)
3463{
Willy Tarreau281c7992013-01-08 01:23:27 +01003464 sample_register_fetches(&smp_fetch_keywords);
Willy Tarreau8b22a712010-06-18 17:46:06 +02003465 acl_register_keywords(&acl_kws);
3466}
3467
Willy Tarreaubaaee002006-06-26 02:48:02 +02003468/*
3469 * Local variables:
3470 * c-indent-level: 8
3471 * c-basic-offset: 8
3472 * End:
3473 */