blob: 65ffdaae64f5d89c95c20b4e9f8b2fa9cf9e3784 [file] [log] [blame]
Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
2 * Client-side variables and functions.
3 *
Willy Tarreaub7f694f2008-06-22 17:18:02 +02004 * Copyright 2000-2008 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 Tarreaubaaee002006-06-26 02:48:02 +020027#include <types/global.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020028
Willy Tarreau8797c062007-05-07 00:55:35 +020029#include <proto/acl.h>
Willy Tarreau54469402006-07-29 16:59:06 +020030#include <proto/buffers.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020031#include <proto/client.h>
32#include <proto/fd.h>
33#include <proto/log.h>
Willy Tarreaue5f20dc2006-12-03 15:21:35 +010034#include <proto/hdr_idx.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020035#include <proto/proto_http.h>
Willy Tarreauc6ca1a02007-05-13 19:43:47 +020036#include <proto/session.h>
Willy Tarreaudded32d2008-11-30 19:48:07 +010037#include <proto/stream_interface.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020038#include <proto/stream_sock.h>
39#include <proto/task.h>
40
41
Willy Tarreau14c8aac2007-05-08 19:46:30 +020042/* Retrieves the original destination address used by the client, and sets the
43 * SN_FRT_ADDR_SET flag.
44 */
45void get_frt_addr(struct session *s)
46{
47 socklen_t namelen = sizeof(s->frt_addr);
48
49 if (get_original_dst(s->cli_fd, (struct sockaddr_in *)&s->frt_addr, &namelen) == -1)
50 getsockname(s->cli_fd, (struct sockaddr *)&s->frt_addr, &namelen);
51 s->flags |= SN_FRT_ADDR_SET;
52}
Willy Tarreaubaaee002006-06-26 02:48:02 +020053
54/*
55 * FIXME: This should move to the STREAM_SOCK code then split into TCP and HTTP.
56 */
Willy Tarreauf54f8bd2008-11-23 19:53:55 +010057
Willy Tarreaubaaee002006-06-26 02:48:02 +020058/*
59 * this function is called on a read event from a listen socket, corresponding
60 * to an accept. It tries to accept as many connections as possible.
61 * It returns 0.
62 */
63int event_accept(int fd) {
Willy Tarreaueabf3132008-08-29 23:36:51 +020064 struct listener *l = fdtab[fd].owner;
Willy Tarreaue6b98942007-10-29 01:09:36 +010065 struct proxy *p = (struct proxy *)l->private; /* attached frontend */
Willy Tarreaubaaee002006-06-26 02:48:02 +020066 struct session *s;
Willy Tarreauc2168d32007-03-03 20:51:44 +010067 struct http_txn *txn;
Willy Tarreaubaaee002006-06-26 02:48:02 +020068 struct task *t;
69 int cfd;
Willy Tarreaua0250ba2008-01-06 11:22:57 +010070 int max_accept = global.tune.maxaccept;
Willy Tarreaubaaee002006-06-26 02:48:02 +020071
Willy Tarreauf1221aa2006-12-17 22:14:12 +010072 while (p->feconn < p->maxconn && max_accept--) {
Willy Tarreaubaaee002006-06-26 02:48:02 +020073 struct sockaddr_storage addr;
74 socklen_t laddr = sizeof(addr);
75
76 if ((cfd = accept(fd, (struct sockaddr *)&addr, &laddr)) == -1) {
77 switch (errno) {
78 case EAGAIN:
79 case EINTR:
80 case ECONNABORTED:
81 return 0; /* nothing more to accept */
82 case ENFILE:
83 send_log(p, LOG_EMERG,
84 "Proxy %s reached system FD limit at %d. Please check system tunables.\n",
85 p->id, maxfd);
86 return 0;
87 case EMFILE:
88 send_log(p, LOG_EMERG,
89 "Proxy %s reached process FD limit at %d. Please check 'ulimit-n' and restart.\n",
90 p->id, maxfd);
91 return 0;
92 case ENOBUFS:
93 case ENOMEM:
94 send_log(p, LOG_EMERG,
95 "Proxy %s reached system memory limit at %d sockets. Please check system tunables.\n",
96 p->id, maxfd);
97 return 0;
98 default:
99 return 0;
100 }
101 }
102
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200103 if ((s = pool_alloc2(pool2_session)) == NULL) { /* disable this proxy for a while */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200104 Alert("out of memory in event_accept().\n");
Willy Tarreauf161a342007-04-08 16:59:42 +0200105 EV_FD_CLR(fd, DIR_RD);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200106 p->state = PR_STIDLE;
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100107 goto out_close;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200108 }
109
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100110 LIST_ADDQ(&sessions, &s->list);
111
Willy Tarreau67f0eea2008-08-10 22:55:22 +0200112 s->flags = 0;
Willy Tarreauf8533202008-08-16 14:55:08 +0200113 s->term_trace = 0;
Willy Tarreau67f0eea2008-08-10 22:55:22 +0200114
Willy Tarreaubaaee002006-06-26 02:48:02 +0200115 /* if this session comes from a known monitoring system, we want to ignore
116 * it as soon as possible, which means closing it immediately for TCP.
117 */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200118 if (addr.ss_family == AF_INET &&
119 p->mon_mask.s_addr &&
120 (((struct sockaddr_in *)&addr)->sin_addr.s_addr & p->mon_mask.s_addr) == p->mon_net.s_addr) {
121 if (p->mode == PR_MODE_TCP) {
122 close(cfd);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200123 pool_free2(pool2_session, s);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200124 continue;
125 }
126 s->flags |= SN_MONITOR;
127 }
128
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200129 if ((t = pool_alloc2(pool2_task)) == NULL) { /* disable this proxy for a while */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200130 Alert("out of memory in event_accept().\n");
Willy Tarreauf161a342007-04-08 16:59:42 +0200131 EV_FD_CLR(fd, DIR_RD);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200132 p->state = PR_STIDLE;
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100133 goto out_free_session;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200134 }
135
136 s->cli_addr = addr;
137 if (cfd >= global.maxsock) {
138 Alert("accept(): not enough free sockets. Raise -n argument. Giving up.\n");
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100139 goto out_free_task;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200140 }
141
142 if ((fcntl(cfd, F_SETFL, O_NONBLOCK) == -1) ||
143 (setsockopt(cfd, IPPROTO_TCP, TCP_NODELAY,
144 (char *) &one, sizeof(one)) == -1)) {
145 Alert("accept(): cannot set the socket in non blocking mode. Giving up\n");
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100146 goto out_free_task;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200147 }
148
149 if (p->options & PR_O_TCP_CLI_KA)
150 setsockopt(cfd, SOL_SOCKET, SO_KEEPALIVE, (char *) &one, sizeof(one));
151
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200152 if (p->options & PR_O_TCP_NOLING)
153 setsockopt(cfd, SOL_SOCKET, SO_LINGER, (struct linger *) &nolinger, sizeof(struct linger));
154
Willy Tarreau9789f7b2008-06-24 08:17:16 +0200155 task_init(t);
Willy Tarreau3bc13772008-12-07 11:50:35 +0100156 t->process = l->handler;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200157 t->context = s;
158
159 s->task = t;
Willy Tarreau830ff452006-12-17 19:31:23 +0100160 s->be = s->fe = p;
Willy Tarreau73de9892006-11-30 11:40:23 +0100161
Willy Tarreaua7e76142007-11-03 14:28:39 +0100162 /* in HTTP mode, content switching requires that the backend
163 * first points to the same proxy as the frontend. However, in
164 * TCP mode there will be no header processing so any default
165 * backend must be assigned if set.
166 */
Willy Tarreau67f0eea2008-08-10 22:55:22 +0200167 if (p->mode == PR_MODE_TCP) {
168 if (p->defbe.be)
169 s->be = p->defbe.be;
170 s->flags |= SN_BE_ASSIGNED;
Willy Tarreaua7e76142007-11-03 14:28:39 +0100171 }
172
Willy Tarreau67f0eea2008-08-10 22:55:22 +0200173 s->cli_state = CL_STDATA;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200174 s->req = s->rep = NULL; /* will be allocated later */
175
Willy Tarreau35374672008-09-03 18:11:02 +0200176 s->si[0].state = s->si[0].prev_state = SI_ST_EST;
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200177 s->si[0].err_type = SI_ET_NONE;
178 s->si[0].err_loc = NULL;
Willy Tarreaue5ed4062008-08-30 03:17:31 +0200179 s->si[0].owner = t;
Willy Tarreau3c6ab2e2008-09-04 11:19:41 +0200180 s->si[0].shutr = stream_sock_shutr;
Willy Tarreau48adac52008-08-30 04:58:38 +0200181 s->si[0].shutw = stream_sock_shutw;
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200182 s->si[0].fd = cfd;
Willy Tarreaud7704b52008-09-04 11:51:16 +0200183 s->si[0].flags = SI_FL_NONE;
Willy Tarreau35374672008-09-03 18:11:02 +0200184 s->si[0].exp = TICK_ETERNITY;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200185 s->cli_fd = cfd;
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200186
Willy Tarreau35374672008-09-03 18:11:02 +0200187 s->si[1].state = s->si[1].prev_state = SI_ST_INI;
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200188 s->si[1].err_type = SI_ET_NONE;
189 s->si[1].err_loc = NULL;
Willy Tarreaue5ed4062008-08-30 03:17:31 +0200190 s->si[1].owner = t;
Willy Tarreau3c6ab2e2008-09-04 11:19:41 +0200191 s->si[1].shutr = stream_sock_shutr;
Willy Tarreau48adac52008-08-30 04:58:38 +0200192 s->si[1].shutw = stream_sock_shutw;
Willy Tarreau35374672008-09-03 18:11:02 +0200193 s->si[1].exp = TICK_ETERNITY;
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200194 s->si[1].fd = -1; /* just to help with debugging */
Willy Tarreaud7704b52008-09-04 11:51:16 +0200195 s->si[1].flags = SI_FL_NONE;
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200196
Willy Tarreau7c669d72008-06-20 15:04:11 +0200197 s->srv = s->prev_srv = s->srv_conn = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200198 s->pend_pos = NULL;
Willy Tarreaua7e76142007-11-03 14:28:39 +0100199 s->conn_retries = s->be->conn_retries;
Willy Tarreauddb358d2006-12-17 22:55:52 +0100200
201 /* FIXME: the logs are horribly complicated now, because they are
Willy Tarreaue2e27a52007-04-01 00:01:37 +0200202 * defined in <p>, <p>, and later <be> and <be>.
Willy Tarreauddb358d2006-12-17 22:55:52 +0100203 */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200204
205 if (s->flags & SN_MONITOR)
206 s->logs.logwait = 0;
207 else
208 s->logs.logwait = p->to_log;
209
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100210 if (s->logs.logwait & LW_REQ)
211 s->do_log = http_sess_log;
212 else
213 s->do_log = tcp_sess_log;
214
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100215 if (p->mode == PR_MODE_HTTP)
216 s->srv_error = http_return_srv_error;
217 else
218 s->srv_error = NULL;
219
Willy Tarreaub7f694f2008-06-22 17:18:02 +0200220 s->logs.accept_date = date; /* user-visible date for logging */
221 s->logs.tv_accept = now; /* corrected date for internal use */
Willy Tarreau70089872008-06-13 21:12:51 +0200222 tv_zero(&s->logs.tv_request);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200223 s->logs.t_queue = -1;
224 s->logs.t_connect = -1;
225 s->logs.t_data = -1;
226 s->logs.t_close = 0;
Willy Tarreau35d66b02007-01-02 00:28:21 +0100227 s->logs.bytes_in = s->logs.bytes_out = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200228 s->logs.prx_queue_size = 0; /* we get the number of pending conns before us */
229 s->logs.srv_queue_size = 0; /* we will get this number soon */
230
231 s->data_source = DATA_SRC_NONE;
232
233 s->uniq_id = totalconn;
Willy Tarreauf1221aa2006-12-17 22:14:12 +0100234 p->cum_feconn++; /* cum_beconn will be increased once assigned */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200235
Willy Tarreauc2168d32007-03-03 20:51:44 +0100236 txn = &s->txn;
Willy Tarreau3d300592007-03-18 18:34:41 +0100237 txn->flags = 0;
Willy Tarreau042cc792007-03-19 16:20:06 +0100238 /* Those variables will be checked and freed if non-NULL in
239 * session.c:session_free(). It is important that they are
240 * properly initialized.
241 */
242 txn->srv_cookie = NULL;
243 txn->cli_cookie = NULL;
244 txn->uri = NULL;
Willy Tarreauc2168d32007-03-03 20:51:44 +0100245 txn->req.cap = NULL;
246 txn->rsp.cap = NULL;
247 txn->hdr_idx.v = NULL;
248 txn->hdr_idx.size = txn->hdr_idx.used = 0;
Willy Tarreau45e73e32006-12-17 00:05:15 +0100249
250 if (p->mode == PR_MODE_HTTP) {
Willy Tarreau3bac9ff2007-03-18 17:31:28 +0100251 txn->status = -1;
matt.farnsworth@nokia.com1c2ab962008-04-14 20:47:37 +0200252 txn->req.hdr_content_len = 0LL;
253 txn->rsp.hdr_content_len = 0LL;
Willy Tarreauc2168d32007-03-03 20:51:44 +0100254 txn->req.msg_state = HTTP_MSG_RQBEFORE; /* at the very beginning of the request */
Willy Tarreauc11416f2007-06-17 16:58:38 +0200255 txn->rsp.msg_state = HTTP_MSG_RPBEFORE; /* at the very beginning of the response */
Willy Tarreauc2168d32007-03-03 20:51:44 +0100256 txn->req.sol = txn->req.eol = NULL;
257 txn->req.som = txn->req.eoh = 0; /* relative to the buffer */
258 txn->auth_hdr.len = -1;
Willy Tarreau45e73e32006-12-17 00:05:15 +0100259
Willy Tarreaue2e27a52007-04-01 00:01:37 +0200260 if (p->nb_req_cap > 0) {
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100261 if ((txn->req.cap = pool_alloc2(p->req_cap_pool)) == NULL)
262 goto out_fail_reqcap; /* no memory */
263
Willy Tarreaue2e27a52007-04-01 00:01:37 +0200264 memset(txn->req.cap, 0, p->nb_req_cap*sizeof(char *));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200265 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200266
Willy Tarreau45e73e32006-12-17 00:05:15 +0100267
Willy Tarreaue2e27a52007-04-01 00:01:37 +0200268 if (p->nb_rsp_cap > 0) {
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100269 if ((txn->rsp.cap = pool_alloc2(p->rsp_cap_pool)) == NULL)
270 goto out_fail_rspcap; /* no memory */
271
Willy Tarreaue2e27a52007-04-01 00:01:37 +0200272 memset(txn->rsp.cap, 0, p->nb_rsp_cap*sizeof(char *));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200273 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200274
Willy Tarreau45e73e32006-12-17 00:05:15 +0100275
Willy Tarreau1d4154a2007-05-13 22:57:02 +0200276 txn->hdr_idx.size = MAX_HTTP_HDR;
277
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100278 if ((txn->hdr_idx.v = pool_alloc2(p->hdr_idx_pool)) == NULL)
279 goto out_fail_idx; /* no memory */
280
Willy Tarreauc2168d32007-03-03 20:51:44 +0100281 hdr_idx_init(&txn->hdr_idx);
Willy Tarreaue5f20dc2006-12-03 15:21:35 +0100282 }
283
Willy Tarreaubaaee002006-06-26 02:48:02 +0200284 if ((p->mode == PR_MODE_TCP || p->mode == PR_MODE_HTTP)
285 && (p->logfac1 >= 0 || p->logfac2 >= 0)) {
Willy Tarreaubaaee002006-06-26 02:48:02 +0200286 if (p->to_log) {
287 /* we have the client ip */
288 if (s->logs.logwait & LW_CLIP)
289 if (!(s->logs.logwait &= ~LW_CLIP))
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100290 s->do_log(s);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200291 }
292 else if (s->cli_addr.ss_family == AF_INET) {
293 char pn[INET_ADDRSTRLEN], sn[INET_ADDRSTRLEN];
Willy Tarreau14c8aac2007-05-08 19:46:30 +0200294
295 if (!(s->flags & SN_FRT_ADDR_SET))
296 get_frt_addr(s);
297
298 if (inet_ntop(AF_INET, (const void *)&((struct sockaddr_in *)&s->frt_addr)->sin_addr,
Willy Tarreaubaaee002006-06-26 02:48:02 +0200299 sn, sizeof(sn)) &&
300 inet_ntop(AF_INET, (const void *)&((struct sockaddr_in *)&s->cli_addr)->sin_addr,
301 pn, sizeof(pn))) {
302 send_log(p, LOG_INFO, "Connect from %s:%d to %s:%d (%s/%s)\n",
303 pn, ntohs(((struct sockaddr_in *)&s->cli_addr)->sin_port),
Willy Tarreau14c8aac2007-05-08 19:46:30 +0200304 sn, ntohs(((struct sockaddr_in *)&s->frt_addr)->sin_port),
Willy Tarreaubaaee002006-06-26 02:48:02 +0200305 p->id, (p->mode == PR_MODE_HTTP) ? "HTTP" : "TCP");
306 }
307 }
308 else {
309 char pn[INET6_ADDRSTRLEN], sn[INET6_ADDRSTRLEN];
Willy Tarreau14c8aac2007-05-08 19:46:30 +0200310
311 if (!(s->flags & SN_FRT_ADDR_SET))
312 get_frt_addr(s);
313
314 if (inet_ntop(AF_INET6, (const void *)&((struct sockaddr_in6 *)&s->frt_addr)->sin6_addr,
Willy Tarreaubaaee002006-06-26 02:48:02 +0200315 sn, sizeof(sn)) &&
316 inet_ntop(AF_INET6, (const void *)&((struct sockaddr_in6 *)&s->cli_addr)->sin6_addr,
317 pn, sizeof(pn))) {
318 send_log(p, LOG_INFO, "Connect from %s:%d to %s:%d (%s/%s)\n",
319 pn, ntohs(((struct sockaddr_in6 *)&s->cli_addr)->sin6_port),
Willy Tarreau14c8aac2007-05-08 19:46:30 +0200320 sn, ntohs(((struct sockaddr_in6 *)&s->frt_addr)->sin6_port),
Willy Tarreaubaaee002006-06-26 02:48:02 +0200321 p->id, (p->mode == PR_MODE_HTTP) ? "HTTP" : "TCP");
322 }
323 }
324 }
325
326 if ((global.mode & MODE_DEBUG) && (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +0200327 int len;
Willy Tarreau14c8aac2007-05-08 19:46:30 +0200328
329 if (!(s->flags & SN_FRT_ADDR_SET))
330 get_frt_addr(s);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200331
332 if (s->cli_addr.ss_family == AF_INET) {
333 char pn[INET_ADDRSTRLEN];
334 inet_ntop(AF_INET,
335 (const void *)&((struct sockaddr_in *)&s->cli_addr)->sin_addr,
336 pn, sizeof(pn));
337
338 len = sprintf(trash, "%08x:%s.accept(%04x)=%04x from [%s:%d]\n",
339 s->uniq_id, p->id, (unsigned short)fd, (unsigned short)cfd,
340 pn, ntohs(((struct sockaddr_in *)&s->cli_addr)->sin_port));
341 }
342 else {
343 char pn[INET6_ADDRSTRLEN];
344 inet_ntop(AF_INET6,
345 (const void *)&((struct sockaddr_in6 *)(&s->cli_addr))->sin6_addr,
346 pn, sizeof(pn));
347
348 len = sprintf(trash, "%08x:%s.accept(%04x)=%04x from [%s:%d]\n",
349 s->uniq_id, p->id, (unsigned short)fd, (unsigned short)cfd,
350 pn, ntohs(((struct sockaddr_in6 *)(&s->cli_addr))->sin6_port));
351 }
352
353 write(1, trash, len);
354 }
355
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100356 if ((s->req = pool_alloc2(pool2_buffer)) == NULL)
357 goto out_fail_req; /* no memory */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200358
Willy Tarreau54469402006-07-29 16:59:06 +0200359 buffer_init(s->req);
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200360 s->req->prod = &s->si[0];
361 s->req->cons = &s->si[1];
Willy Tarreau48adac52008-08-30 04:58:38 +0200362 s->si[0].ib = s->si[1].ob = s->req;
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200363
Willy Tarreau9a2d1542008-08-30 12:31:07 +0200364 s->req->flags |= BF_READ_ATTACHED; /* the producer is already connected */
365
Willy Tarreaub6866442008-07-14 23:54:42 +0200366 if (p->mode == PR_MODE_HTTP) /* reserve some space for header rewriting */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200367 s->req->rlim -= MAXREWRITE;
368
Willy Tarreau3bc13772008-12-07 11:50:35 +0100369 /* activate default analysers enabled for this listener */
370 s->req->analysers = l->analysers;
Willy Tarreau2df28e82008-08-17 15:20:19 +0200371
372 if (!s->req->analysers)
Willy Tarreau3da77c52008-08-29 09:58:42 +0200373 buffer_write_ena(s->req); /* don't wait to establish connection */
Willy Tarreaudc0a6a02008-08-03 20:38:13 +0200374
Willy Tarreaud7c30f92007-12-03 01:38:36 +0100375 s->req->rto = s->fe->timeout.client;
376 s->req->wto = s->be->timeout.server;
377 s->req->cto = s->be->timeout.connect;
Willy Tarreaud7971282006-07-29 18:36:34 +0200378
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100379 if ((s->rep = pool_alloc2(pool2_buffer)) == NULL)
380 goto out_fail_rep; /* no memory */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200381
Willy Tarreau54469402006-07-29 16:59:06 +0200382 buffer_init(s->rep);
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200383 s->rep->prod = &s->si[1];
384 s->rep->cons = &s->si[0];
Willy Tarreau48adac52008-08-30 04:58:38 +0200385 s->si[0].ob = s->si[1].ib = s->rep;
Willy Tarreau54469402006-07-29 16:59:06 +0200386
Willy Tarreaud7c30f92007-12-03 01:38:36 +0100387 s->rep->rto = s->be->timeout.server;
388 s->rep->wto = s->fe->timeout.client;
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200389 s->rep->cto = TICK_ETERNITY;
Willy Tarreaud7971282006-07-29 18:36:34 +0200390
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200391 s->req->rex = TICK_ETERNITY;
392 s->req->wex = TICK_ETERNITY;
Willy Tarreauffab5b42008-08-17 18:03:28 +0200393 s->req->analyse_exp = TICK_ETERNITY;
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200394 s->rep->rex = TICK_ETERNITY;
395 s->rep->wex = TICK_ETERNITY;
Willy Tarreauffab5b42008-08-17 18:03:28 +0200396 s->rep->analyse_exp = TICK_ETERNITY;
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200397 t->expire = TICK_ETERNITY;
398
Willy Tarreau7a966482007-04-15 10:58:02 +0200399 fd_insert(cfd);
Willy Tarreaue5ed4062008-08-30 03:17:31 +0200400 fdtab[cfd].owner = &s->si[0];
Willy Tarreaue6b98942007-10-29 01:09:36 +0100401 fdtab[cfd].listener = l;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200402 fdtab[cfd].state = FD_STREADY;
Willy Tarreaue6b98942007-10-29 01:09:36 +0100403 fdtab[cfd].cb[DIR_RD].f = l->proto->read;
Willy Tarreau54469402006-07-29 16:59:06 +0200404 fdtab[cfd].cb[DIR_RD].b = s->req;
Willy Tarreaue6b98942007-10-29 01:09:36 +0100405 fdtab[cfd].cb[DIR_WR].f = l->proto->write;
Willy Tarreau54469402006-07-29 16:59:06 +0200406 fdtab[cfd].cb[DIR_WR].b = s->rep;
Willy Tarreaue94ebd02007-10-09 17:14:37 +0200407 fdtab[cfd].peeraddr = (struct sockaddr *)&s->cli_addr;
408 fdtab[cfd].peerlen = sizeof(s->cli_addr);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200409
410 if ((p->mode == PR_MODE_HTTP && (s->flags & SN_MONITOR)) ||
Willy Tarreau0f772532006-12-23 20:51:41 +0100411 (p->mode == PR_MODE_HEALTH && (p->options & PR_O_HTTP_CHK))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +0200412 /* Either we got a request from a monitoring system on an HTTP instance,
413 * or we're in health check mode with the 'httpchk' option enabled. In
414 * both cases, we return a fake "HTTP/1.0 200 OK" response and we exit.
415 */
Willy Tarreau0f772532006-12-23 20:51:41 +0100416 struct chunk msg = { .str = "HTTP/1.0 200 OK\r\n\r\n", .len = 19 };
Willy Tarreaudded32d2008-11-30 19:48:07 +0100417 stream_int_retnclose(&s->si[0], &msg); /* forge a 200 response */
Willy Tarreauf8533202008-08-16 14:55:08 +0200418 trace_term(s, TT_CLIENT_1);
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200419 t->expire = s->rep->wex;
Willy Tarreau0f772532006-12-23 20:51:41 +0100420 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200421 else if (p->mode == PR_MODE_HEALTH) { /* health check mode, no client reading */
Willy Tarreau0f772532006-12-23 20:51:41 +0100422 struct chunk msg = { .str = "OK\n", .len = 3 };
Willy Tarreaudded32d2008-11-30 19:48:07 +0100423 stream_int_retnclose(&s->si[0], &msg); /* forge an "OK" response */
Willy Tarreauf8533202008-08-16 14:55:08 +0200424 trace_term(s, TT_CLIENT_2);
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200425 t->expire = s->rep->wex;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200426 }
427 else {
Willy Tarreauf161a342007-04-08 16:59:42 +0200428 EV_FD_SET(cfd, DIR_RD);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200429 }
430
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200431 /* it is important not to call the wakeup function directly but to
432 * pass through task_wakeup(), because this one knows how to apply
433 * priorities to tasks.
434 */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200435 if (p->mode != PR_MODE_HEALTH)
Willy Tarreaufdccded2008-08-29 18:19:04 +0200436 task_wakeup(t, TASK_WOKEN_INIT);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200437
Willy Tarreauf1221aa2006-12-17 22:14:12 +0100438 p->feconn++; /* beconn will be increased later */
439 if (p->feconn > p->feconn_max)
440 p->feconn_max = p->feconn;
Willy Tarreaua7e76142007-11-03 14:28:39 +0100441
442 if (s->flags & SN_BE_ASSIGNED) {
443 s->be->cum_beconn++;
444 s->be->beconn++;
445 if (s->be->beconn > s->be->beconn_max)
446 s->be->beconn_max = s->be->beconn;
447 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200448 actconn++;
449 totalconn++;
450
451 // fprintf(stderr, "accepting from %p => %d conn, %d total, task=%p\n", p, actconn, totalconn, t);
Willy Tarreauf1221aa2006-12-17 22:14:12 +0100452 } /* end of while (p->feconn < p->maxconn) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200453 return 0;
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100454
455 /* Error unrolling */
456 out_fail_rep:
Willy Tarreau48d63db2008-08-03 17:41:33 +0200457 pool_free2(pool2_buffer, s->req);
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100458 out_fail_req:
Willy Tarreau48d63db2008-08-03 17:41:33 +0200459 pool_free2(p->hdr_idx_pool, txn->hdr_idx.v);
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100460 out_fail_idx:
Willy Tarreau48d63db2008-08-03 17:41:33 +0200461 pool_free2(p->rsp_cap_pool, txn->rsp.cap);
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100462 out_fail_rspcap:
Willy Tarreau48d63db2008-08-03 17:41:33 +0200463 pool_free2(p->req_cap_pool, txn->req.cap);
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100464 out_fail_reqcap:
465 out_free_task:
466 pool_free2(pool2_task, t);
467 out_free_session:
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100468 LIST_DEL(&s->list);
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100469 pool_free2(pool2_session, s);
470 out_close:
471 close(cfd);
472 return 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200473}
474
475
476
Willy Tarreau8797c062007-05-07 00:55:35 +0200477/************************************************************************/
478/* All supported keywords must be declared here. */
479/************************************************************************/
480
481/* set test->ptr to point to the source IPv4/IPv6 address and test->i to the family */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200482static int
Willy Tarreau97be1452007-06-10 11:47:14 +0200483acl_fetch_src(struct proxy *px, struct session *l4, void *l7, int dir,
484 struct acl_expr *expr, struct acl_test *test)
Willy Tarreau8797c062007-05-07 00:55:35 +0200485{
486 test->i = l4->cli_addr.ss_family;
487 if (test->i == AF_INET)
488 test->ptr = (void *)&((struct sockaddr_in *)&l4->cli_addr)->sin_addr;
489 else
490 test->ptr = (void *)&((struct sockaddr_in6 *)(&l4->cli_addr))->sin6_addr;
491 test->flags = ACL_TEST_F_READ_ONLY;
492 return 1;
493}
494
495
496/* set test->i to the connexion's source port */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200497static int
Willy Tarreau97be1452007-06-10 11:47:14 +0200498acl_fetch_sport(struct proxy *px, struct session *l4, void *l7, int dir,
499 struct acl_expr *expr, struct acl_test *test)
Willy Tarreau8797c062007-05-07 00:55:35 +0200500{
501 if (l4->cli_addr.ss_family == AF_INET)
502 test->i = ntohs(((struct sockaddr_in *)&l4->cli_addr)->sin_port);
503 else
504 test->i = ntohs(((struct sockaddr_in6 *)(&l4->cli_addr))->sin6_port);
505 test->flags = 0;
506 return 1;
507}
508
Willy Tarreau662b2d82007-05-08 19:56:15 +0200509
510/* 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 +0200511static int
Willy Tarreau97be1452007-06-10 11:47:14 +0200512acl_fetch_dst(struct proxy *px, struct session *l4, void *l7, int dir,
513 struct acl_expr *expr, struct acl_test *test)
Willy Tarreau662b2d82007-05-08 19:56:15 +0200514{
515 if (!(l4->flags & SN_FRT_ADDR_SET))
516 get_frt_addr(l4);
517
518 test->i = l4->frt_addr.ss_family;
519 if (test->i == AF_INET)
520 test->ptr = (void *)&((struct sockaddr_in *)&l4->frt_addr)->sin_addr;
521 else
522 test->ptr = (void *)&((struct sockaddr_in6 *)(&l4->frt_addr))->sin6_addr;
523 test->flags = ACL_TEST_F_READ_ONLY;
524 return 1;
525}
526
527
528/* set test->i to the frontend connexion's destination port */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200529static int
Willy Tarreau97be1452007-06-10 11:47:14 +0200530acl_fetch_dport(struct proxy *px, struct session *l4, void *l7, int dir,
531 struct acl_expr *expr, struct acl_test *test)
Willy Tarreau662b2d82007-05-08 19:56:15 +0200532{
533 if (!(l4->flags & SN_FRT_ADDR_SET))
534 get_frt_addr(l4);
535
536 if (l4->frt_addr.ss_family == AF_INET)
537 test->i = ntohs(((struct sockaddr_in *)&l4->frt_addr)->sin_port);
538 else
539 test->i = ntohs(((struct sockaddr_in6 *)(&l4->frt_addr))->sin6_port);
540 test->flags = 0;
541 return 1;
542}
543
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100544
Willy Tarreau8797c062007-05-07 00:55:35 +0200545/* set test->i to the number of connexions to the proxy */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200546static int
Willy Tarreau97be1452007-06-10 11:47:14 +0200547acl_fetch_dconn(struct proxy *px, struct session *l4, void *l7, int dir,
548 struct acl_expr *expr, struct acl_test *test)
Willy Tarreau8797c062007-05-07 00:55:35 +0200549{
550 test->i = px->feconn;
551 return 1;
552}
553
554
555/* Note: must not be declared <const> as its list will be overwritten */
556static struct acl_kw_list acl_kws = {{ },{
Willy Tarreau0ceba5a2008-07-25 19:31:03 +0200557 { "src_port", acl_parse_int, acl_fetch_sport, acl_match_int, ACL_USE_TCP_PERMANENT },
558 { "src", acl_parse_ip, acl_fetch_src, acl_match_ip, ACL_USE_TCP4_PERMANENT },
559 { "dst", acl_parse_ip, acl_fetch_dst, acl_match_ip, ACL_USE_TCP4_PERMANENT },
560 { "dst_port", acl_parse_int, acl_fetch_dport, acl_match_int, ACL_USE_TCP_PERMANENT },
Willy Tarreau662b2d82007-05-08 19:56:15 +0200561#if 0
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100562 { "src_limit", acl_parse_int, acl_fetch_sconn, acl_match_int },
Willy Tarreau8797c062007-05-07 00:55:35 +0200563#endif
Willy Tarreau0ceba5a2008-07-25 19:31:03 +0200564 { "dst_conn", acl_parse_int, acl_fetch_dconn, acl_match_int, ACL_USE_NOTHING },
Willy Tarreau8797c062007-05-07 00:55:35 +0200565 { NULL, NULL, NULL, NULL },
566}};
567
568
569__attribute__((constructor))
570static void __client_init(void)
571{
572 acl_register_keywords(&acl_kws);
573}
574
575
Willy Tarreaubaaee002006-06-26 02:48:02 +0200576/*
577 * Local variables:
578 * c-indent-level: 8
579 * c-basic-offset: 8
580 * End:
581 */