blob: 2ee41a6f8e0cfb8c9cec29864663d45570dc2488 [file] [log] [blame]
Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
2 * Client-side variables and functions.
3 *
Willy Tarreaud825eef2007-05-12 22:35:00 +02004 * Copyright 2000-2007 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 <errno.h>
14#include <fcntl.h>
15#include <stdio.h>
16#include <stdlib.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020017#include <string.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020018
19#include <sys/socket.h>
20#include <sys/stat.h>
21#include <sys/types.h>
22
Willy Tarreau2dd0d472006-06-29 17:53:05 +020023#include <common/compat.h>
Willy Tarreaue3ba5f02006-06-29 18:54:54 +020024#include <common/config.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020025#include <common/time.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020026
Willy Tarreau8797c062007-05-07 00:55:35 +020027#include <types/acl.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020028#include <types/backend.h>
29#include <types/buffers.h>
30#include <types/global.h>
31#include <types/httperr.h>
32#include <types/polling.h>
33#include <types/proxy.h>
34#include <types/server.h>
35#include <types/session.h>
36
Willy Tarreau8797c062007-05-07 00:55:35 +020037#include <proto/acl.h>
Willy Tarreau54469402006-07-29 16:59:06 +020038#include <proto/buffers.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020039#include <proto/client.h>
40#include <proto/fd.h>
41#include <proto/log.h>
Willy Tarreaue5f20dc2006-12-03 15:21:35 +010042#include <proto/hdr_idx.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020043#include <proto/proto_http.h>
Willy Tarreauc6ca1a02007-05-13 19:43:47 +020044#include <proto/session.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020045#include <proto/stream_sock.h>
46#include <proto/task.h>
47
48
Willy Tarreau14c8aac2007-05-08 19:46:30 +020049/* Retrieves the original destination address used by the client, and sets the
50 * SN_FRT_ADDR_SET flag.
51 */
52void get_frt_addr(struct session *s)
53{
54 socklen_t namelen = sizeof(s->frt_addr);
55
56 if (get_original_dst(s->cli_fd, (struct sockaddr_in *)&s->frt_addr, &namelen) == -1)
57 getsockname(s->cli_fd, (struct sockaddr *)&s->frt_addr, &namelen);
58 s->flags |= SN_FRT_ADDR_SET;
59}
Willy Tarreaubaaee002006-06-26 02:48:02 +020060
61/*
62 * FIXME: This should move to the STREAM_SOCK code then split into TCP and HTTP.
63 */
64
65/*
66 * this function is called on a read event from a listen socket, corresponding
67 * to an accept. It tries to accept as many connections as possible.
68 * It returns 0.
69 */
70int event_accept(int fd) {
Willy Tarreaue6b98942007-10-29 01:09:36 +010071 struct listener *l = (struct listener *)fdtab[fd].owner;
72 struct proxy *p = (struct proxy *)l->private; /* attached frontend */
Willy Tarreaubaaee002006-06-26 02:48:02 +020073 struct session *s;
Willy Tarreauc2168d32007-03-03 20:51:44 +010074 struct http_txn *txn;
Willy Tarreaubaaee002006-06-26 02:48:02 +020075 struct task *t;
76 int cfd;
77 int max_accept;
78
79 if (global.nbproc > 1)
80 max_accept = 8; /* let other processes catch some connections too */
81 else
82 max_accept = -1;
83
Willy Tarreauf1221aa2006-12-17 22:14:12 +010084 while (p->feconn < p->maxconn && max_accept--) {
Willy Tarreaubaaee002006-06-26 02:48:02 +020085 struct sockaddr_storage addr;
86 socklen_t laddr = sizeof(addr);
87
88 if ((cfd = accept(fd, (struct sockaddr *)&addr, &laddr)) == -1) {
89 switch (errno) {
90 case EAGAIN:
91 case EINTR:
92 case ECONNABORTED:
93 return 0; /* nothing more to accept */
94 case ENFILE:
95 send_log(p, LOG_EMERG,
96 "Proxy %s reached system FD limit at %d. Please check system tunables.\n",
97 p->id, maxfd);
98 return 0;
99 case EMFILE:
100 send_log(p, LOG_EMERG,
101 "Proxy %s reached process FD limit at %d. Please check 'ulimit-n' and restart.\n",
102 p->id, maxfd);
103 return 0;
104 case ENOBUFS:
105 case ENOMEM:
106 send_log(p, LOG_EMERG,
107 "Proxy %s reached system memory limit at %d sockets. Please check system tunables.\n",
108 p->id, maxfd);
109 return 0;
110 default:
111 return 0;
112 }
113 }
114
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200115 if ((s = pool_alloc2(pool2_session)) == NULL) { /* disable this proxy for a while */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200116 Alert("out of memory in event_accept().\n");
Willy Tarreauf161a342007-04-08 16:59:42 +0200117 EV_FD_CLR(fd, DIR_RD);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200118 p->state = PR_STIDLE;
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100119 goto out_close;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200120 }
121
122 /* if this session comes from a known monitoring system, we want to ignore
123 * it as soon as possible, which means closing it immediately for TCP.
124 */
125 s->flags = 0;
126 if (addr.ss_family == AF_INET &&
127 p->mon_mask.s_addr &&
128 (((struct sockaddr_in *)&addr)->sin_addr.s_addr & p->mon_mask.s_addr) == p->mon_net.s_addr) {
129 if (p->mode == PR_MODE_TCP) {
130 close(cfd);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200131 pool_free2(pool2_session, s);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200132 continue;
133 }
134 s->flags |= SN_MONITOR;
135 }
136
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200137 if ((t = pool_alloc2(pool2_task)) == NULL) { /* disable this proxy for a while */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200138 Alert("out of memory in event_accept().\n");
Willy Tarreauf161a342007-04-08 16:59:42 +0200139 EV_FD_CLR(fd, DIR_RD);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200140 p->state = PR_STIDLE;
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100141 goto out_free_session;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200142 }
143
144 s->cli_addr = addr;
145 if (cfd >= global.maxsock) {
146 Alert("accept(): not enough free sockets. Raise -n argument. Giving up.\n");
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100147 goto out_free_task;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200148 }
149
150 if ((fcntl(cfd, F_SETFL, O_NONBLOCK) == -1) ||
151 (setsockopt(cfd, IPPROTO_TCP, TCP_NODELAY,
152 (char *) &one, sizeof(one)) == -1)) {
153 Alert("accept(): cannot set the socket in non blocking mode. Giving up\n");
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100154 goto out_free_task;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200155 }
156
157 if (p->options & PR_O_TCP_CLI_KA)
158 setsockopt(cfd, SOL_SOCKET, SO_KEEPALIVE, (char *) &one, sizeof(one));
159
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200160 if (p->options & PR_O_TCP_NOLING)
161 setsockopt(cfd, SOL_SOCKET, SO_LINGER, (struct linger *) &nolinger, sizeof(struct linger));
162
Willy Tarreau964c9362007-01-07 00:38:00 +0100163 t->wq = NULL;
Willy Tarreau96bcfd72007-04-29 10:41:56 +0200164 t->qlist.p = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200165 t->state = TASK_IDLE;
166 t->process = process_session;
167 t->context = s;
168
169 s->task = t;
Willy Tarreau830ff452006-12-17 19:31:23 +0100170 s->be = s->fe = p;
Willy Tarreau73de9892006-11-30 11:40:23 +0100171
Willy Tarreaua7e76142007-11-03 14:28:39 +0100172 /* in HTTP mode, content switching requires that the backend
173 * first points to the same proxy as the frontend. However, in
174 * TCP mode there will be no header processing so any default
175 * backend must be assigned if set.
176 */
177 if (p->mode == PR_MODE_HTTP) {
178 s->cli_state = CL_STHEADERS;
179 } else {
180 /* We must assign any default backend now since
181 * there will be no header processing.
182 */
183 if (p->mode == PR_MODE_TCP) {
184 if (p->defbe.be)
185 s->be = p->defbe.be;
186 s->flags |= SN_BE_ASSIGNED;
187 }
188 s->cli_state = CL_STDATA; /* no HTTP headers for non-HTTP proxies */
189 }
190
Willy Tarreaubaaee002006-06-26 02:48:02 +0200191 s->srv_state = SV_STIDLE;
192 s->req = s->rep = NULL; /* will be allocated later */
193
Willy Tarreaubaaee002006-06-26 02:48:02 +0200194 s->cli_fd = cfd;
195 s->srv_fd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200196 s->srv = NULL;
197 s->pend_pos = NULL;
Willy Tarreaua7e76142007-11-03 14:28:39 +0100198 s->conn_retries = s->be->conn_retries;
Willy Tarreauddb358d2006-12-17 22:55:52 +0100199
200 /* FIXME: the logs are horribly complicated now, because they are
Willy Tarreaue2e27a52007-04-01 00:01:37 +0200201 * defined in <p>, <p>, and later <be> and <be>.
Willy Tarreauddb358d2006-12-17 22:55:52 +0100202 */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200203
204 if (s->flags & SN_MONITOR)
205 s->logs.logwait = 0;
206 else
207 s->logs.logwait = p->to_log;
208
209 s->logs.tv_accept = now;
210 s->logs.t_request = -1;
211 s->logs.t_queue = -1;
212 s->logs.t_connect = -1;
213 s->logs.t_data = -1;
214 s->logs.t_close = 0;
Willy Tarreau35d66b02007-01-02 00:28:21 +0100215 s->logs.bytes_in = s->logs.bytes_out = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200216 s->logs.prx_queue_size = 0; /* we get the number of pending conns before us */
217 s->logs.srv_queue_size = 0; /* we will get this number soon */
218
219 s->data_source = DATA_SRC_NONE;
220
221 s->uniq_id = totalconn;
Willy Tarreauf1221aa2006-12-17 22:14:12 +0100222 p->cum_feconn++; /* cum_beconn will be increased once assigned */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200223
Willy Tarreauc2168d32007-03-03 20:51:44 +0100224 txn = &s->txn;
Willy Tarreau3d300592007-03-18 18:34:41 +0100225 txn->flags = 0;
Willy Tarreau042cc792007-03-19 16:20:06 +0100226 /* Those variables will be checked and freed if non-NULL in
227 * session.c:session_free(). It is important that they are
228 * properly initialized.
229 */
230 txn->srv_cookie = NULL;
231 txn->cli_cookie = NULL;
232 txn->uri = NULL;
Willy Tarreauc2168d32007-03-03 20:51:44 +0100233 txn->req.cap = NULL;
234 txn->rsp.cap = NULL;
235 txn->hdr_idx.v = NULL;
236 txn->hdr_idx.size = txn->hdr_idx.used = 0;
Willy Tarreau45e73e32006-12-17 00:05:15 +0100237
238 if (p->mode == PR_MODE_HTTP) {
Willy Tarreau3bac9ff2007-03-18 17:31:28 +0100239 txn->status = -1;
240
Willy Tarreauc2168d32007-03-03 20:51:44 +0100241 txn->req.msg_state = HTTP_MSG_RQBEFORE; /* at the very beginning of the request */
Willy Tarreauc11416f2007-06-17 16:58:38 +0200242 txn->rsp.msg_state = HTTP_MSG_RPBEFORE; /* at the very beginning of the response */
Willy Tarreauc2168d32007-03-03 20:51:44 +0100243 txn->req.sol = txn->req.eol = NULL;
244 txn->req.som = txn->req.eoh = 0; /* relative to the buffer */
245 txn->auth_hdr.len = -1;
Willy Tarreau45e73e32006-12-17 00:05:15 +0100246
Willy Tarreaue2e27a52007-04-01 00:01:37 +0200247 if (p->nb_req_cap > 0) {
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100248 if ((txn->req.cap = pool_alloc2(p->req_cap_pool)) == NULL)
249 goto out_fail_reqcap; /* no memory */
250
Willy Tarreaue2e27a52007-04-01 00:01:37 +0200251 memset(txn->req.cap, 0, p->nb_req_cap*sizeof(char *));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200252 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200253
Willy Tarreau45e73e32006-12-17 00:05:15 +0100254
Willy Tarreaue2e27a52007-04-01 00:01:37 +0200255 if (p->nb_rsp_cap > 0) {
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100256 if ((txn->rsp.cap = pool_alloc2(p->rsp_cap_pool)) == NULL)
257 goto out_fail_rspcap; /* no memory */
258
Willy Tarreaue2e27a52007-04-01 00:01:37 +0200259 memset(txn->rsp.cap, 0, p->nb_rsp_cap*sizeof(char *));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200260 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200261
Willy Tarreau45e73e32006-12-17 00:05:15 +0100262
Willy Tarreau1d4154a2007-05-13 22:57:02 +0200263 txn->hdr_idx.size = MAX_HTTP_HDR;
264
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100265 if ((txn->hdr_idx.v = pool_alloc2(p->hdr_idx_pool)) == NULL)
266 goto out_fail_idx; /* no memory */
267
Willy Tarreauc2168d32007-03-03 20:51:44 +0100268 hdr_idx_init(&txn->hdr_idx);
Willy Tarreaue5f20dc2006-12-03 15:21:35 +0100269 }
270
Willy Tarreaubaaee002006-06-26 02:48:02 +0200271 if ((p->mode == PR_MODE_TCP || p->mode == PR_MODE_HTTP)
272 && (p->logfac1 >= 0 || p->logfac2 >= 0)) {
Willy Tarreaubaaee002006-06-26 02:48:02 +0200273 if (p->to_log) {
274 /* we have the client ip */
275 if (s->logs.logwait & LW_CLIP)
276 if (!(s->logs.logwait &= ~LW_CLIP))
Willy Tarreau42250582007-04-01 01:30:43 +0200277 tcp_sess_log(s);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200278 }
279 else if (s->cli_addr.ss_family == AF_INET) {
280 char pn[INET_ADDRSTRLEN], sn[INET_ADDRSTRLEN];
Willy Tarreau14c8aac2007-05-08 19:46:30 +0200281
282 if (!(s->flags & SN_FRT_ADDR_SET))
283 get_frt_addr(s);
284
285 if (inet_ntop(AF_INET, (const void *)&((struct sockaddr_in *)&s->frt_addr)->sin_addr,
Willy Tarreaubaaee002006-06-26 02:48:02 +0200286 sn, sizeof(sn)) &&
287 inet_ntop(AF_INET, (const void *)&((struct sockaddr_in *)&s->cli_addr)->sin_addr,
288 pn, sizeof(pn))) {
289 send_log(p, LOG_INFO, "Connect from %s:%d to %s:%d (%s/%s)\n",
290 pn, ntohs(((struct sockaddr_in *)&s->cli_addr)->sin_port),
Willy Tarreau14c8aac2007-05-08 19:46:30 +0200291 sn, ntohs(((struct sockaddr_in *)&s->frt_addr)->sin_port),
Willy Tarreaubaaee002006-06-26 02:48:02 +0200292 p->id, (p->mode == PR_MODE_HTTP) ? "HTTP" : "TCP");
293 }
294 }
295 else {
296 char pn[INET6_ADDRSTRLEN], sn[INET6_ADDRSTRLEN];
Willy Tarreau14c8aac2007-05-08 19:46:30 +0200297
298 if (!(s->flags & SN_FRT_ADDR_SET))
299 get_frt_addr(s);
300
301 if (inet_ntop(AF_INET6, (const void *)&((struct sockaddr_in6 *)&s->frt_addr)->sin6_addr,
Willy Tarreaubaaee002006-06-26 02:48:02 +0200302 sn, sizeof(sn)) &&
303 inet_ntop(AF_INET6, (const void *)&((struct sockaddr_in6 *)&s->cli_addr)->sin6_addr,
304 pn, sizeof(pn))) {
305 send_log(p, LOG_INFO, "Connect from %s:%d to %s:%d (%s/%s)\n",
306 pn, ntohs(((struct sockaddr_in6 *)&s->cli_addr)->sin6_port),
Willy Tarreau14c8aac2007-05-08 19:46:30 +0200307 sn, ntohs(((struct sockaddr_in6 *)&s->frt_addr)->sin6_port),
Willy Tarreaubaaee002006-06-26 02:48:02 +0200308 p->id, (p->mode == PR_MODE_HTTP) ? "HTTP" : "TCP");
309 }
310 }
311 }
312
313 if ((global.mode & MODE_DEBUG) && (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +0200314 int len;
Willy Tarreau14c8aac2007-05-08 19:46:30 +0200315
316 if (!(s->flags & SN_FRT_ADDR_SET))
317 get_frt_addr(s);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200318
319 if (s->cli_addr.ss_family == AF_INET) {
320 char pn[INET_ADDRSTRLEN];
321 inet_ntop(AF_INET,
322 (const void *)&((struct sockaddr_in *)&s->cli_addr)->sin_addr,
323 pn, sizeof(pn));
324
325 len = sprintf(trash, "%08x:%s.accept(%04x)=%04x from [%s:%d]\n",
326 s->uniq_id, p->id, (unsigned short)fd, (unsigned short)cfd,
327 pn, ntohs(((struct sockaddr_in *)&s->cli_addr)->sin_port));
328 }
329 else {
330 char pn[INET6_ADDRSTRLEN];
331 inet_ntop(AF_INET6,
332 (const void *)&((struct sockaddr_in6 *)(&s->cli_addr))->sin6_addr,
333 pn, sizeof(pn));
334
335 len = sprintf(trash, "%08x:%s.accept(%04x)=%04x from [%s:%d]\n",
336 s->uniq_id, p->id, (unsigned short)fd, (unsigned short)cfd,
337 pn, ntohs(((struct sockaddr_in6 *)(&s->cli_addr))->sin6_port));
338 }
339
340 write(1, trash, len);
341 }
342
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100343 if ((s->req = pool_alloc2(pool2_buffer)) == NULL)
344 goto out_fail_req; /* no memory */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200345
Willy Tarreau54469402006-07-29 16:59:06 +0200346 buffer_init(s->req);
347 s->req->rlim += BUFSIZE;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200348 if (s->cli_state == CL_STHEADERS) /* reserve some space for header rewriting */
349 s->req->rlim -= MAXREWRITE;
350
Willy Tarreau73de9892006-11-30 11:40:23 +0100351 s->req->rto = s->fe->clitimeout;
Willy Tarreaue2e27a52007-04-01 00:01:37 +0200352 s->req->wto = s->be->srvtimeout;
Willy Tarreaua7e76142007-11-03 14:28:39 +0100353 s->req->cto = s->be->contimeout;
Willy Tarreaud7971282006-07-29 18:36:34 +0200354
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100355 if ((s->rep = pool_alloc2(pool2_buffer)) == NULL)
356 goto out_fail_rep; /* no memory */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200357
Willy Tarreau54469402006-07-29 16:59:06 +0200358 buffer_init(s->rep);
359
Willy Tarreaue2e27a52007-04-01 00:01:37 +0200360 s->rep->rto = s->be->srvtimeout;
Willy Tarreau830ff452006-12-17 19:31:23 +0100361 s->rep->wto = s->fe->clitimeout;
Willy Tarreauee991362007-05-14 14:37:50 +0200362 tv_eternity(&s->rep->cto);
Willy Tarreaud7971282006-07-29 18:36:34 +0200363
Willy Tarreau7a966482007-04-15 10:58:02 +0200364 fd_insert(cfd);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200365 fdtab[cfd].owner = t;
Willy Tarreaue6b98942007-10-29 01:09:36 +0100366 fdtab[cfd].listener = l;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200367 fdtab[cfd].state = FD_STREADY;
Willy Tarreaue6b98942007-10-29 01:09:36 +0100368 fdtab[cfd].cb[DIR_RD].f = l->proto->read;
Willy Tarreau54469402006-07-29 16:59:06 +0200369 fdtab[cfd].cb[DIR_RD].b = s->req;
Willy Tarreaue6b98942007-10-29 01:09:36 +0100370 fdtab[cfd].cb[DIR_WR].f = l->proto->write;
Willy Tarreau54469402006-07-29 16:59:06 +0200371 fdtab[cfd].cb[DIR_WR].b = s->rep;
Willy Tarreaue94ebd02007-10-09 17:14:37 +0200372 fdtab[cfd].peeraddr = (struct sockaddr *)&s->cli_addr;
373 fdtab[cfd].peerlen = sizeof(s->cli_addr);
Willy Tarreau3d32d3a2007-04-15 11:31:05 +0200374 fdtab[cfd].ev = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200375
376 if ((p->mode == PR_MODE_HTTP && (s->flags & SN_MONITOR)) ||
Willy Tarreau0f772532006-12-23 20:51:41 +0100377 (p->mode == PR_MODE_HEALTH && (p->options & PR_O_HTTP_CHK))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +0200378 /* Either we got a request from a monitoring system on an HTTP instance,
379 * or we're in health check mode with the 'httpchk' option enabled. In
380 * both cases, we return a fake "HTTP/1.0 200 OK" response and we exit.
381 */
Willy Tarreau0f772532006-12-23 20:51:41 +0100382 struct chunk msg = { .str = "HTTP/1.0 200 OK\r\n\r\n", .len = 19 };
383 client_retnclose(s, &msg); /* forge a 200 response */
384 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200385 else if (p->mode == PR_MODE_HEALTH) { /* health check mode, no client reading */
Willy Tarreau0f772532006-12-23 20:51:41 +0100386 struct chunk msg = { .str = "OK\n", .len = 3 };
387 client_retnclose(s, &msg); /* forge an "OK" response */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200388 }
389 else {
Willy Tarreauf161a342007-04-08 16:59:42 +0200390 EV_FD_SET(cfd, DIR_RD);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200391 }
392
Willy Tarreaud7971282006-07-29 18:36:34 +0200393 tv_eternity(&s->req->rex);
394 tv_eternity(&s->req->wex);
395 tv_eternity(&s->req->cex);
396 tv_eternity(&s->rep->rex);
397 tv_eternity(&s->rep->wex);
Willy Tarreau5465e112007-04-29 19:09:47 +0200398 tv_eternity(&t->expire);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200399
Willy Tarreaud825eef2007-05-12 22:35:00 +0200400 if (tv_isset(&s->fe->clitimeout)) {
Willy Tarreau5465e112007-04-29 19:09:47 +0200401 if (EV_FD_ISSET(cfd, DIR_RD)) {
Willy Tarreaud825eef2007-05-12 22:35:00 +0200402 tv_add(&s->req->rex, &now, &s->fe->clitimeout);
Willy Tarreau5465e112007-04-29 19:09:47 +0200403 t->expire = s->req->rex;
404 }
405 if (EV_FD_ISSET(cfd, DIR_WR)) {
Willy Tarreaud825eef2007-05-12 22:35:00 +0200406 tv_add(&s->rep->wex, &now, &s->fe->clitimeout);
Willy Tarreaud95dcb52007-10-15 20:36:37 +0200407 t->expire = s->rep->wex;
Willy Tarreau5465e112007-04-29 19:09:47 +0200408 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200409 }
410
Willy Tarreaubaaee002006-06-26 02:48:02 +0200411 task_queue(t);
412
413 if (p->mode != PR_MODE_HEALTH)
Willy Tarreau96bcfd72007-04-29 10:41:56 +0200414 task_wakeup(t);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200415
Willy Tarreauf1221aa2006-12-17 22:14:12 +0100416 p->feconn++; /* beconn will be increased later */
417 if (p->feconn > p->feconn_max)
418 p->feconn_max = p->feconn;
Willy Tarreaua7e76142007-11-03 14:28:39 +0100419
420 if (s->flags & SN_BE_ASSIGNED) {
421 s->be->cum_beconn++;
422 s->be->beconn++;
423 if (s->be->beconn > s->be->beconn_max)
424 s->be->beconn_max = s->be->beconn;
425 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200426 actconn++;
427 totalconn++;
428
429 // fprintf(stderr, "accepting from %p => %d conn, %d total, task=%p\n", p, actconn, totalconn, t);
Willy Tarreauf1221aa2006-12-17 22:14:12 +0100430 } /* end of while (p->feconn < p->maxconn) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200431 return 0;
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100432
433 /* Error unrolling */
434 out_fail_rep:
435 if (s->req)
436 pool_free2(pool2_buffer, s->req);
437 out_fail_req:
438 if (txn->hdr_idx.v != NULL)
439 pool_free2(p->hdr_idx_pool, txn->hdr_idx.v);
440 out_fail_idx:
441 if (txn->rsp.cap != NULL)
442 pool_free2(p->rsp_cap_pool, txn->rsp.cap);
443 out_fail_rspcap:
444 if (txn->req.cap != NULL)
445 pool_free2(p->req_cap_pool, txn->req.cap);
446 out_fail_reqcap:
447 out_free_task:
448 pool_free2(pool2_task, t);
449 out_free_session:
450 pool_free2(pool2_session, s);
451 out_close:
452 close(cfd);
453 return 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200454}
455
456
457
Willy Tarreau8797c062007-05-07 00:55:35 +0200458/************************************************************************/
459/* All supported keywords must be declared here. */
460/************************************************************************/
461
462/* set test->ptr to point to the source IPv4/IPv6 address and test->i to the family */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200463static int
Willy Tarreau97be1452007-06-10 11:47:14 +0200464acl_fetch_src(struct proxy *px, struct session *l4, void *l7, int dir,
465 struct acl_expr *expr, struct acl_test *test)
Willy Tarreau8797c062007-05-07 00:55:35 +0200466{
467 test->i = l4->cli_addr.ss_family;
468 if (test->i == AF_INET)
469 test->ptr = (void *)&((struct sockaddr_in *)&l4->cli_addr)->sin_addr;
470 else
471 test->ptr = (void *)&((struct sockaddr_in6 *)(&l4->cli_addr))->sin6_addr;
472 test->flags = ACL_TEST_F_READ_ONLY;
473 return 1;
474}
475
476
477/* set test->i to the connexion's source port */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200478static int
Willy Tarreau97be1452007-06-10 11:47:14 +0200479acl_fetch_sport(struct proxy *px, struct session *l4, void *l7, int dir,
480 struct acl_expr *expr, struct acl_test *test)
Willy Tarreau8797c062007-05-07 00:55:35 +0200481{
482 if (l4->cli_addr.ss_family == AF_INET)
483 test->i = ntohs(((struct sockaddr_in *)&l4->cli_addr)->sin_port);
484 else
485 test->i = ntohs(((struct sockaddr_in6 *)(&l4->cli_addr))->sin6_port);
486 test->flags = 0;
487 return 1;
488}
489
Willy Tarreau662b2d82007-05-08 19:56:15 +0200490
491/* set test->ptr to point to the frontend's IPv4/IPv6 address and test->i to the family */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200492static int
Willy Tarreau97be1452007-06-10 11:47:14 +0200493acl_fetch_dst(struct proxy *px, struct session *l4, void *l7, int dir,
494 struct acl_expr *expr, struct acl_test *test)
Willy Tarreau662b2d82007-05-08 19:56:15 +0200495{
496 if (!(l4->flags & SN_FRT_ADDR_SET))
497 get_frt_addr(l4);
498
499 test->i = l4->frt_addr.ss_family;
500 if (test->i == AF_INET)
501 test->ptr = (void *)&((struct sockaddr_in *)&l4->frt_addr)->sin_addr;
502 else
503 test->ptr = (void *)&((struct sockaddr_in6 *)(&l4->frt_addr))->sin6_addr;
504 test->flags = ACL_TEST_F_READ_ONLY;
505 return 1;
506}
507
508
509/* set test->i to the frontend connexion's destination port */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200510static int
Willy Tarreau97be1452007-06-10 11:47:14 +0200511acl_fetch_dport(struct proxy *px, struct session *l4, void *l7, int dir,
512 struct acl_expr *expr, struct acl_test *test)
Willy Tarreau662b2d82007-05-08 19:56:15 +0200513{
514 if (!(l4->flags & SN_FRT_ADDR_SET))
515 get_frt_addr(l4);
516
517 if (l4->frt_addr.ss_family == AF_INET)
518 test->i = ntohs(((struct sockaddr_in *)&l4->frt_addr)->sin_port);
519 else
520 test->i = ntohs(((struct sockaddr_in6 *)(&l4->frt_addr))->sin6_port);
521 test->flags = 0;
522 return 1;
523}
524
Willy Tarreau8797c062007-05-07 00:55:35 +0200525/* set test->i to the number of connexions to the proxy */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200526static int
Willy Tarreau97be1452007-06-10 11:47:14 +0200527acl_fetch_dconn(struct proxy *px, struct session *l4, void *l7, int dir,
528 struct acl_expr *expr, struct acl_test *test)
Willy Tarreau8797c062007-05-07 00:55:35 +0200529{
530 test->i = px->feconn;
531 return 1;
532}
533
534
535/* Note: must not be declared <const> as its list will be overwritten */
536static struct acl_kw_list acl_kws = {{ },{
Willy Tarreauae8b7962007-06-09 23:10:04 +0200537 { "src_port", acl_parse_int, acl_fetch_sport, acl_match_int },
538 { "src", acl_parse_ip, acl_fetch_src, acl_match_ip },
539 { "dst", acl_parse_ip, acl_fetch_dst, acl_match_ip },
540 { "dst_port", acl_parse_int, acl_fetch_dport, acl_match_int },
Willy Tarreau662b2d82007-05-08 19:56:15 +0200541#if 0
Willy Tarreauae8b7962007-06-09 23:10:04 +0200542 { "src_limit", acl_parse_int, acl_fetch_sconn, acl_match_int },
Willy Tarreau8797c062007-05-07 00:55:35 +0200543#endif
Willy Tarreauae8b7962007-06-09 23:10:04 +0200544 { "dst_conn", acl_parse_int, acl_fetch_dconn, acl_match_int },
Willy Tarreau8797c062007-05-07 00:55:35 +0200545 { NULL, NULL, NULL, NULL },
546}};
547
548
549__attribute__((constructor))
550static void __client_init(void)
551{
552 acl_register_keywords(&acl_kws);
553}
554
555
Willy Tarreaubaaee002006-06-26 02:48:02 +0200556/*
557 * Local variables:
558 * c-indent-level: 8
559 * c-basic-offset: 8
560 * End:
561 */