blob: 93bd8946a2338896d9370408d0b5d8d7fb1377cb [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 Tarreau9650f372009-08-16 14:02:45 +020035#include <proto/proto_tcp.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020036#include <proto/proto_http.h>
Willy Tarreau7f062c42009-03-05 18:43:00 +010037#include <proto/proxy.h>
Willy Tarreauc6ca1a02007-05-13 19:43:47 +020038#include <proto/session.h>
Willy Tarreaudded32d2008-11-30 19:48:07 +010039#include <proto/stream_interface.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020040#include <proto/stream_sock.h>
41#include <proto/task.h>
42
43
Willy Tarreau14c8aac2007-05-08 19:46:30 +020044/* Retrieves the original destination address used by the client, and sets the
45 * SN_FRT_ADDR_SET flag.
46 */
47void get_frt_addr(struct session *s)
48{
49 socklen_t namelen = sizeof(s->frt_addr);
50
Willy Tarreau7e5067d2008-12-07 16:27:56 +010051 if (get_original_dst(s->si[0].fd, (struct sockaddr_in *)&s->frt_addr, &namelen) == -1)
52 getsockname(s->si[0].fd, (struct sockaddr *)&s->frt_addr, &namelen);
Willy Tarreau14c8aac2007-05-08 19:46:30 +020053 s->flags |= SN_FRT_ADDR_SET;
54}
Willy Tarreaubaaee002006-06-26 02:48:02 +020055
56/*
57 * FIXME: This should move to the STREAM_SOCK code then split into TCP and HTTP.
58 */
Willy Tarreauf54f8bd2008-11-23 19:53:55 +010059
Willy Tarreaubaaee002006-06-26 02:48:02 +020060/*
61 * this function is called on a read event from a listen socket, corresponding
62 * to an accept. It tries to accept as many connections as possible.
63 * It returns 0.
64 */
65int event_accept(int fd) {
Willy Tarreaueabf3132008-08-29 23:36:51 +020066 struct listener *l = fdtab[fd].owner;
Willy Tarreaue6b98942007-10-29 01:09:36 +010067 struct proxy *p = (struct proxy *)l->private; /* attached frontend */
Willy Tarreaubaaee002006-06-26 02:48:02 +020068 struct session *s;
Willy Tarreauc2168d32007-03-03 20:51:44 +010069 struct http_txn *txn;
Willy Tarreaubaaee002006-06-26 02:48:02 +020070 struct task *t;
71 int cfd;
Willy Tarreaua0250ba2008-01-06 11:22:57 +010072 int max_accept = global.tune.maxaccept;
Willy Tarreaubaaee002006-06-26 02:48:02 +020073
Willy Tarreau13a34bd2009-05-10 18:52:49 +020074 if (p->fe_sps_lim) {
75 int max = freq_ctr_remain(&p->fe_sess_per_sec, p->fe_sps_lim, 0);
Willy Tarreau79584222009-03-06 09:18:27 +010076 if (max_accept > max)
77 max_accept = max;
78 }
79
Willy Tarreaub00f9c42009-03-21 22:43:12 +010080 while (p->feconn < p->maxconn && actconn < global.maxconn && max_accept--) {
Willy Tarreaubaaee002006-06-26 02:48:02 +020081 struct sockaddr_storage addr;
82 socklen_t laddr = sizeof(addr);
83
84 if ((cfd = accept(fd, (struct sockaddr *)&addr, &laddr)) == -1) {
85 switch (errno) {
86 case EAGAIN:
87 case EINTR:
88 case ECONNABORTED:
89 return 0; /* nothing more to accept */
90 case ENFILE:
91 send_log(p, LOG_EMERG,
92 "Proxy %s reached system FD limit at %d. Please check system tunables.\n",
93 p->id, maxfd);
94 return 0;
95 case EMFILE:
96 send_log(p, LOG_EMERG,
97 "Proxy %s reached process FD limit at %d. Please check 'ulimit-n' and restart.\n",
98 p->id, maxfd);
99 return 0;
100 case ENOBUFS:
101 case ENOMEM:
102 send_log(p, LOG_EMERG,
103 "Proxy %s reached system memory limit at %d sockets. Please check system tunables.\n",
104 p->id, maxfd);
105 return 0;
106 default:
107 return 0;
108 }
109 }
110
Willy Tarreau6e6fb2b2009-08-16 18:20:44 +0200111 if (l->nbconn >= l->maxconn) {
112 /* too many connections, we shoot this one and return.
113 * FIXME: it would be better to simply switch the listener's
114 * state to LI_FULL and disable the FD. We could re-enable
115 * it upon fd_delete(), but this requires all protocols to
116 * be switched.
117 */
118 goto out_close;
119 }
120
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200121 if ((s = pool_alloc2(pool2_session)) == NULL) { /* disable this proxy for a while */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200122 Alert("out of memory in event_accept().\n");
Willy Tarreauf161a342007-04-08 16:59:42 +0200123 EV_FD_CLR(fd, DIR_RD);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200124 p->state = PR_STIDLE;
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100125 goto out_close;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200126 }
127
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100128 LIST_ADDQ(&sessions, &s->list);
Willy Tarreau62e4f1d2008-12-07 20:16:23 +0100129 LIST_INIT(&s->back_refs);
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100130
Willy Tarreau67f0eea2008-08-10 22:55:22 +0200131 s->flags = 0;
Willy Tarreauf8533202008-08-16 14:55:08 +0200132 s->term_trace = 0;
Willy Tarreau67f0eea2008-08-10 22:55:22 +0200133
Willy Tarreaubaaee002006-06-26 02:48:02 +0200134 /* if this session comes from a known monitoring system, we want to ignore
135 * it as soon as possible, which means closing it immediately for TCP.
136 */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200137 if (addr.ss_family == AF_INET &&
138 p->mon_mask.s_addr &&
139 (((struct sockaddr_in *)&addr)->sin_addr.s_addr & p->mon_mask.s_addr) == p->mon_net.s_addr) {
140 if (p->mode == PR_MODE_TCP) {
141 close(cfd);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200142 pool_free2(pool2_session, s);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200143 continue;
144 }
145 s->flags |= SN_MONITOR;
146 }
147
Willy Tarreaua4613182009-03-21 18:13:21 +0100148 if ((t = task_new()) == NULL) { /* disable this proxy for a while */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200149 Alert("out of memory in event_accept().\n");
Willy Tarreauf161a342007-04-08 16:59:42 +0200150 EV_FD_CLR(fd, DIR_RD);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200151 p->state = PR_STIDLE;
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100152 goto out_free_session;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200153 }
154
155 s->cli_addr = addr;
156 if (cfd >= global.maxsock) {
157 Alert("accept(): not enough free sockets. Raise -n argument. Giving up.\n");
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100158 goto out_free_task;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200159 }
160
161 if ((fcntl(cfd, F_SETFL, O_NONBLOCK) == -1) ||
162 (setsockopt(cfd, IPPROTO_TCP, TCP_NODELAY,
163 (char *) &one, sizeof(one)) == -1)) {
164 Alert("accept(): cannot set the socket in non blocking mode. Giving up\n");
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100165 goto out_free_task;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200166 }
167
168 if (p->options & PR_O_TCP_CLI_KA)
169 setsockopt(cfd, SOL_SOCKET, SO_KEEPALIVE, (char *) &one, sizeof(one));
170
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200171 if (p->options & PR_O_TCP_NOLING)
172 setsockopt(cfd, SOL_SOCKET, SO_LINGER, (struct linger *) &nolinger, sizeof(struct linger));
173
Willy Tarreau3bc13772008-12-07 11:50:35 +0100174 t->process = l->handler;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200175 t->context = s;
176
177 s->task = t;
Willy Tarreaub5654f62008-12-07 16:45:10 +0100178 s->listener = l;
Willy Tarreau73de9892006-11-30 11:40:23 +0100179
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200180 /* Note: initially, the session's backend points to the frontend.
181 * This changes later when switching rules are executed or
182 * when the default backend is assigned.
Willy Tarreaua7e76142007-11-03 14:28:39 +0100183 */
Willy Tarreau1d0dfb12009-07-07 15:10:31 +0200184 s->be = s->fe = p;
Willy Tarreaua7e76142007-11-03 14:28:39 +0100185
Willy Tarreauff8d42e2008-12-07 14:37:09 +0100186 s->ana_state = 0; /* analysers may change it but must reset it upon exit */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200187 s->req = s->rep = NULL; /* will be allocated later */
188
Willy Tarreau35374672008-09-03 18:11:02 +0200189 s->si[0].state = s->si[0].prev_state = SI_ST_EST;
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200190 s->si[0].err_type = SI_ET_NONE;
191 s->si[0].err_loc = NULL;
Willy Tarreaue5ed4062008-08-30 03:17:31 +0200192 s->si[0].owner = t;
Willy Tarreau9650f372009-08-16 14:02:45 +0200193 s->si[0].connect = NULL;
Willy Tarreau3c6ab2e2008-09-04 11:19:41 +0200194 s->si[0].shutr = stream_sock_shutr;
Willy Tarreau48adac52008-08-30 04:58:38 +0200195 s->si[0].shutw = stream_sock_shutw;
Willy Tarreau3ffeba12008-12-14 14:42:35 +0100196 s->si[0].chk_rcv = stream_sock_chk_rcv;
197 s->si[0].chk_snd = stream_sock_chk_snd;
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200198 s->si[0].fd = cfd;
Willy Tarreaudc340a92009-06-28 23:10:19 +0200199 s->si[0].flags = SI_FL_NONE | SI_FL_CAP_SPLTCP; /* TCP splicing capable */
Willy Tarreau35374672008-09-03 18:11:02 +0200200 s->si[0].exp = TICK_ETERNITY;
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200201
Willy Tarreau35374672008-09-03 18:11:02 +0200202 s->si[1].state = s->si[1].prev_state = SI_ST_INI;
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200203 s->si[1].err_type = SI_ET_NONE;
204 s->si[1].err_loc = NULL;
Willy Tarreaue5ed4062008-08-30 03:17:31 +0200205 s->si[1].owner = t;
Willy Tarreau9650f372009-08-16 14:02:45 +0200206 s->si[1].connect = tcpv4_connect_server;
Willy Tarreau3c6ab2e2008-09-04 11:19:41 +0200207 s->si[1].shutr = stream_sock_shutr;
Willy Tarreau48adac52008-08-30 04:58:38 +0200208 s->si[1].shutw = stream_sock_shutw;
Willy Tarreau3ffeba12008-12-14 14:42:35 +0100209 s->si[1].chk_rcv = stream_sock_chk_rcv;
210 s->si[1].chk_snd = stream_sock_chk_snd;
Willy Tarreau35374672008-09-03 18:11:02 +0200211 s->si[1].exp = TICK_ETERNITY;
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200212 s->si[1].fd = -1; /* just to help with debugging */
Willy Tarreaud7704b52008-09-04 11:51:16 +0200213 s->si[1].flags = SI_FL_NONE;
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200214
Willy Tarreau7c669d72008-06-20 15:04:11 +0200215 s->srv = s->prev_srv = s->srv_conn = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200216 s->pend_pos = NULL;
Willy Tarreaua7e76142007-11-03 14:28:39 +0100217 s->conn_retries = s->be->conn_retries;
Willy Tarreauddb358d2006-12-17 22:55:52 +0100218
219 /* FIXME: the logs are horribly complicated now, because they are
Willy Tarreaue2e27a52007-04-01 00:01:37 +0200220 * defined in <p>, <p>, and later <be> and <be>.
Willy Tarreauddb358d2006-12-17 22:55:52 +0100221 */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200222
223 if (s->flags & SN_MONITOR)
224 s->logs.logwait = 0;
225 else
226 s->logs.logwait = p->to_log;
227
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100228 if (s->logs.logwait & LW_REQ)
229 s->do_log = http_sess_log;
230 else
231 s->do_log = tcp_sess_log;
232
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100233 if (p->mode == PR_MODE_HTTP)
234 s->srv_error = http_return_srv_error;
235 else
Willy Tarreau84455332009-03-15 22:34:05 +0100236 s->srv_error = default_srv_error;
Willy Tarreau0cac36f2008-11-30 20:44:17 +0100237
Willy Tarreaub7f694f2008-06-22 17:18:02 +0200238 s->logs.accept_date = date; /* user-visible date for logging */
239 s->logs.tv_accept = now; /* corrected date for internal use */
Willy Tarreau70089872008-06-13 21:12:51 +0200240 tv_zero(&s->logs.tv_request);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200241 s->logs.t_queue = -1;
242 s->logs.t_connect = -1;
243 s->logs.t_data = -1;
244 s->logs.t_close = 0;
Willy Tarreau35d66b02007-01-02 00:28:21 +0100245 s->logs.bytes_in = s->logs.bytes_out = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200246 s->logs.prx_queue_size = 0; /* we get the number of pending conns before us */
247 s->logs.srv_queue_size = 0; /* we will get this number soon */
248
249 s->data_source = DATA_SRC_NONE;
250
251 s->uniq_id = totalconn;
Willy Tarreau7f062c42009-03-05 18:43:00 +0100252 proxy_inc_fe_ctr(p); /* note: cum_beconn will be increased once assigned */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200253
Willy Tarreauc2168d32007-03-03 20:51:44 +0100254 txn = &s->txn;
Willy Tarreau3d300592007-03-18 18:34:41 +0100255 txn->flags = 0;
Willy Tarreau042cc792007-03-19 16:20:06 +0100256 /* Those variables will be checked and freed if non-NULL in
257 * session.c:session_free(). It is important that they are
258 * properly initialized.
259 */
260 txn->srv_cookie = NULL;
261 txn->cli_cookie = NULL;
262 txn->uri = NULL;
Willy Tarreauc2168d32007-03-03 20:51:44 +0100263 txn->req.cap = NULL;
264 txn->rsp.cap = NULL;
265 txn->hdr_idx.v = NULL;
266 txn->hdr_idx.size = txn->hdr_idx.used = 0;
Willy Tarreau45e73e32006-12-17 00:05:15 +0100267
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200268 /* we always initialize the HTTP structure because we may use it later */
269 txn->status = -1;
270 txn->req.hdr_content_len = 0LL;
271 txn->rsp.hdr_content_len = 0LL;
272 txn->req.msg_state = HTTP_MSG_RQBEFORE; /* at the very beginning of the request */
273 txn->rsp.msg_state = HTTP_MSG_RPBEFORE; /* at the very beginning of the response */
274 txn->req.sol = txn->req.eol = NULL;
275 txn->req.som = txn->req.eoh = 0; /* relative to the buffer */
276 txn->rsp.sol = txn->rsp.eol = NULL;
277 txn->rsp.som = txn->rsp.eoh = 0; /* relative to the buffer */
278 txn->req.err_pos = txn->rsp.err_pos = -2; /* block buggy requests/responses */
279 txn->auth_hdr.len = -1;
280 if (p->options2 & PR_O2_REQBUG_OK)
281 txn->req.err_pos = -1; /* let buggy requests pass */
Willy Tarreau45e73e32006-12-17 00:05:15 +0100282
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200283 if (p->mode == PR_MODE_HTTP) {
284 /* the captures are only used in HTTP frontends */
Willy Tarreaue2e27a52007-04-01 00:01:37 +0200285 if (p->nb_req_cap > 0) {
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100286 if ((txn->req.cap = pool_alloc2(p->req_cap_pool)) == NULL)
287 goto out_fail_reqcap; /* no memory */
288
Willy Tarreaue2e27a52007-04-01 00:01:37 +0200289 memset(txn->req.cap, 0, p->nb_req_cap*sizeof(char *));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200290 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200291
Willy Tarreaue2e27a52007-04-01 00:01:37 +0200292 if (p->nb_rsp_cap > 0) {
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100293 if ((txn->rsp.cap = pool_alloc2(p->rsp_cap_pool)) == NULL)
294 goto out_fail_rspcap; /* no memory */
295
Willy Tarreaue2e27a52007-04-01 00:01:37 +0200296 memset(txn->rsp.cap, 0, p->nb_rsp_cap*sizeof(char *));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200297 }
Willy Tarreaubf288622009-07-10 23:52:51 +0200298 }
Willy Tarreau45e73e32006-12-17 00:05:15 +0100299
Willy Tarreaubf288622009-07-10 23:52:51 +0200300 if (p->acl_requires & ACL_USE_L7_ANY) {
301 /* we have to allocate header indexes only if we know
302 * that we may make use of them. This of course includes
303 * (mode == PR_MODE_HTTP).
304 */
Willy Tarreau1d4154a2007-05-13 22:57:02 +0200305 txn->hdr_idx.size = MAX_HTTP_HDR;
306
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100307 if ((txn->hdr_idx.v = pool_alloc2(p->hdr_idx_pool)) == NULL)
308 goto out_fail_idx; /* no memory */
309
Willy Tarreauc2168d32007-03-03 20:51:44 +0100310 hdr_idx_init(&txn->hdr_idx);
Willy Tarreaue5f20dc2006-12-03 15:21:35 +0100311 }
312
Willy Tarreaubaaee002006-06-26 02:48:02 +0200313 if ((p->mode == PR_MODE_TCP || p->mode == PR_MODE_HTTP)
314 && (p->logfac1 >= 0 || p->logfac2 >= 0)) {
Willy Tarreaubaaee002006-06-26 02:48:02 +0200315 if (p->to_log) {
316 /* we have the client ip */
317 if (s->logs.logwait & LW_CLIP)
318 if (!(s->logs.logwait &= ~LW_CLIP))
Willy Tarreaua5555ec2008-11-30 19:02:32 +0100319 s->do_log(s);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200320 }
321 else if (s->cli_addr.ss_family == AF_INET) {
322 char pn[INET_ADDRSTRLEN], sn[INET_ADDRSTRLEN];
Willy Tarreau14c8aac2007-05-08 19:46:30 +0200323
324 if (!(s->flags & SN_FRT_ADDR_SET))
325 get_frt_addr(s);
326
327 if (inet_ntop(AF_INET, (const void *)&((struct sockaddr_in *)&s->frt_addr)->sin_addr,
Willy Tarreaubaaee002006-06-26 02:48:02 +0200328 sn, sizeof(sn)) &&
329 inet_ntop(AF_INET, (const void *)&((struct sockaddr_in *)&s->cli_addr)->sin_addr,
330 pn, sizeof(pn))) {
331 send_log(p, LOG_INFO, "Connect from %s:%d to %s:%d (%s/%s)\n",
332 pn, ntohs(((struct sockaddr_in *)&s->cli_addr)->sin_port),
Willy Tarreau14c8aac2007-05-08 19:46:30 +0200333 sn, ntohs(((struct sockaddr_in *)&s->frt_addr)->sin_port),
Willy Tarreaubaaee002006-06-26 02:48:02 +0200334 p->id, (p->mode == PR_MODE_HTTP) ? "HTTP" : "TCP");
335 }
336 }
337 else {
338 char pn[INET6_ADDRSTRLEN], sn[INET6_ADDRSTRLEN];
Willy Tarreau14c8aac2007-05-08 19:46:30 +0200339
340 if (!(s->flags & SN_FRT_ADDR_SET))
341 get_frt_addr(s);
342
343 if (inet_ntop(AF_INET6, (const void *)&((struct sockaddr_in6 *)&s->frt_addr)->sin6_addr,
Willy Tarreaubaaee002006-06-26 02:48:02 +0200344 sn, sizeof(sn)) &&
345 inet_ntop(AF_INET6, (const void *)&((struct sockaddr_in6 *)&s->cli_addr)->sin6_addr,
346 pn, sizeof(pn))) {
347 send_log(p, LOG_INFO, "Connect from %s:%d to %s:%d (%s/%s)\n",
348 pn, ntohs(((struct sockaddr_in6 *)&s->cli_addr)->sin6_port),
Willy Tarreau14c8aac2007-05-08 19:46:30 +0200349 sn, ntohs(((struct sockaddr_in6 *)&s->frt_addr)->sin6_port),
Willy Tarreaubaaee002006-06-26 02:48:02 +0200350 p->id, (p->mode == PR_MODE_HTTP) ? "HTTP" : "TCP");
351 }
352 }
353 }
354
355 if ((global.mode & MODE_DEBUG) && (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +0200356 int len;
Willy Tarreau14c8aac2007-05-08 19:46:30 +0200357
358 if (!(s->flags & SN_FRT_ADDR_SET))
359 get_frt_addr(s);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200360
361 if (s->cli_addr.ss_family == AF_INET) {
362 char pn[INET_ADDRSTRLEN];
363 inet_ntop(AF_INET,
364 (const void *)&((struct sockaddr_in *)&s->cli_addr)->sin_addr,
365 pn, sizeof(pn));
366
367 len = sprintf(trash, "%08x:%s.accept(%04x)=%04x from [%s:%d]\n",
368 s->uniq_id, p->id, (unsigned short)fd, (unsigned short)cfd,
369 pn, ntohs(((struct sockaddr_in *)&s->cli_addr)->sin_port));
370 }
371 else {
372 char pn[INET6_ADDRSTRLEN];
373 inet_ntop(AF_INET6,
374 (const void *)&((struct sockaddr_in6 *)(&s->cli_addr))->sin6_addr,
375 pn, sizeof(pn));
376
377 len = sprintf(trash, "%08x:%s.accept(%04x)=%04x from [%s:%d]\n",
378 s->uniq_id, p->id, (unsigned short)fd, (unsigned short)cfd,
379 pn, ntohs(((struct sockaddr_in6 *)(&s->cli_addr))->sin6_port));
380 }
381
382 write(1, trash, len);
383 }
384
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100385 if ((s->req = pool_alloc2(pool2_buffer)) == NULL)
386 goto out_fail_req; /* no memory */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200387
Willy Tarreau54469402006-07-29 16:59:06 +0200388 buffer_init(s->req);
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200389 s->req->prod = &s->si[0];
390 s->req->cons = &s->si[1];
Willy Tarreau48adac52008-08-30 04:58:38 +0200391 s->si[0].ib = s->si[1].ob = s->req;
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200392
Willy Tarreau9a2d1542008-08-30 12:31:07 +0200393 s->req->flags |= BF_READ_ATTACHED; /* the producer is already connected */
394
Willy Tarreau1b194fe2009-03-21 21:10:04 +0100395 if (p->mode == PR_MODE_HTTP) { /* reserve some space for header rewriting */
Willy Tarreau03d60bb2009-01-09 11:13:00 +0100396 s->req->max_len -= MAXREWRITE;
Willy Tarreau1b194fe2009-03-21 21:10:04 +0100397 s->req->flags |= BF_READ_DONTWAIT; /* one read is usually enough */
398 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200399
Willy Tarreau3bc13772008-12-07 11:50:35 +0100400 /* activate default analysers enabled for this listener */
401 s->req->analysers = l->analysers;
Willy Tarreau2df28e82008-08-17 15:20:19 +0200402
403 if (!s->req->analysers)
Willy Tarreau3da77c52008-08-29 09:58:42 +0200404 buffer_write_ena(s->req); /* don't wait to establish connection */
Willy Tarreaudc0a6a02008-08-03 20:38:13 +0200405
Willy Tarreaud7c30f92007-12-03 01:38:36 +0100406 s->req->rto = s->fe->timeout.client;
407 s->req->wto = s->be->timeout.server;
408 s->req->cto = s->be->timeout.connect;
Willy Tarreaud7971282006-07-29 18:36:34 +0200409
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100410 if ((s->rep = pool_alloc2(pool2_buffer)) == NULL)
411 goto out_fail_rep; /* no memory */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200412
Willy Tarreau54469402006-07-29 16:59:06 +0200413 buffer_init(s->rep);
Willy Tarreaufa7e1022008-10-19 07:30:41 +0200414 s->rep->prod = &s->si[1];
415 s->rep->cons = &s->si[0];
Willy Tarreau48adac52008-08-30 04:58:38 +0200416 s->si[0].ob = s->si[1].ib = s->rep;
Willy Tarreau54469402006-07-29 16:59:06 +0200417
Willy Tarreaud7c30f92007-12-03 01:38:36 +0100418 s->rep->rto = s->be->timeout.server;
419 s->rep->wto = s->fe->timeout.client;
Willy Tarreau0c303ee2008-07-07 00:09:58 +0200420 s->rep->cto = TICK_ETERNITY;
Willy Tarreaud7971282006-07-29 18:36:34 +0200421
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200422 s->req->rex = TICK_ETERNITY;
423 s->req->wex = TICK_ETERNITY;
Willy Tarreauffab5b42008-08-17 18:03:28 +0200424 s->req->analyse_exp = TICK_ETERNITY;
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200425 s->rep->rex = TICK_ETERNITY;
426 s->rep->wex = TICK_ETERNITY;
Willy Tarreauffab5b42008-08-17 18:03:28 +0200427 s->rep->analyse_exp = TICK_ETERNITY;
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200428 t->expire = TICK_ETERNITY;
429
Willy Tarreau7a966482007-04-15 10:58:02 +0200430 fd_insert(cfd);
Willy Tarreaue5ed4062008-08-30 03:17:31 +0200431 fdtab[cfd].owner = &s->si[0];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200432 fdtab[cfd].state = FD_STREADY;
Willy Tarreaufb14edc2009-06-14 15:24:37 +0200433 fdtab[cfd].flags = FD_FL_TCP | FD_FL_TCP_NODELAY;
Willy Tarreau5d707e12009-06-28 11:09:07 +0200434 if (p->options & PR_O_TCP_NOLING)
435 fdtab[cfd].flags |= FD_FL_TCP_NOLING;
436
Willy Tarreaue6b98942007-10-29 01:09:36 +0100437 fdtab[cfd].cb[DIR_RD].f = l->proto->read;
Willy Tarreau54469402006-07-29 16:59:06 +0200438 fdtab[cfd].cb[DIR_RD].b = s->req;
Willy Tarreaue6b98942007-10-29 01:09:36 +0100439 fdtab[cfd].cb[DIR_WR].f = l->proto->write;
Willy Tarreau54469402006-07-29 16:59:06 +0200440 fdtab[cfd].cb[DIR_WR].b = s->rep;
Willy Tarreaue94ebd02007-10-09 17:14:37 +0200441 fdtab[cfd].peeraddr = (struct sockaddr *)&s->cli_addr;
442 fdtab[cfd].peerlen = sizeof(s->cli_addr);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200443
444 if ((p->mode == PR_MODE_HTTP && (s->flags & SN_MONITOR)) ||
Willy Tarreau0f772532006-12-23 20:51:41 +0100445 (p->mode == PR_MODE_HEALTH && (p->options & PR_O_HTTP_CHK))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +0200446 /* Either we got a request from a monitoring system on an HTTP instance,
447 * or we're in health check mode with the 'httpchk' option enabled. In
448 * both cases, we return a fake "HTTP/1.0 200 OK" response and we exit.
449 */
Willy Tarreau0f772532006-12-23 20:51:41 +0100450 struct chunk msg = { .str = "HTTP/1.0 200 OK\r\n\r\n", .len = 19 };
Willy Tarreaudded32d2008-11-30 19:48:07 +0100451 stream_int_retnclose(&s->si[0], &msg); /* forge a 200 response */
Willy Tarreau2ade3012009-03-06 19:16:39 +0100452 s->req->analysers = 0;
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200453 t->expire = s->rep->wex;
Willy Tarreau0f772532006-12-23 20:51:41 +0100454 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200455 else if (p->mode == PR_MODE_HEALTH) { /* health check mode, no client reading */
Willy Tarreau0f772532006-12-23 20:51:41 +0100456 struct chunk msg = { .str = "OK\n", .len = 3 };
Willy Tarreaudded32d2008-11-30 19:48:07 +0100457 stream_int_retnclose(&s->si[0], &msg); /* forge an "OK" response */
Willy Tarreau2ade3012009-03-06 19:16:39 +0100458 s->req->analysers = 0;
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200459 t->expire = s->rep->wex;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200460 }
461 else {
Willy Tarreauf161a342007-04-08 16:59:42 +0200462 EV_FD_SET(cfd, DIR_RD);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200463 }
464
Willy Tarreauc65a3ba2008-08-11 23:42:50 +0200465 /* it is important not to call the wakeup function directly but to
466 * pass through task_wakeup(), because this one knows how to apply
467 * priorities to tasks.
468 */
Willy Tarreau721fdbc2009-03-08 12:25:07 +0100469 task_wakeup(t, TASK_WOKEN_INIT);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200470
Willy Tarreau6e6fb2b2009-08-16 18:20:44 +0200471 l->nbconn++; /* warning! right now, it's up to the handler to decrease this */
472 if (l->nbconn >= l->maxconn) {
473 EV_FD_CLR(l->fd, DIR_RD);
474 l->state = LI_FULL;
475 }
476
Willy Tarreauf1221aa2006-12-17 22:14:12 +0100477 p->feconn++; /* beconn will be increased later */
478 if (p->feconn > p->feconn_max)
479 p->feconn_max = p->feconn;
Willy Tarreaua7e76142007-11-03 14:28:39 +0100480
Willy Tarreaubaaee002006-06-26 02:48:02 +0200481 actconn++;
482 totalconn++;
483
484 // fprintf(stderr, "accepting from %p => %d conn, %d total, task=%p\n", p, actconn, totalconn, t);
Willy Tarreauf1221aa2006-12-17 22:14:12 +0100485 } /* end of while (p->feconn < p->maxconn) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200486 return 0;
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100487
488 /* Error unrolling */
489 out_fail_rep:
Willy Tarreau48d63db2008-08-03 17:41:33 +0200490 pool_free2(pool2_buffer, s->req);
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100491 out_fail_req:
Willy Tarreau48d63db2008-08-03 17:41:33 +0200492 pool_free2(p->hdr_idx_pool, txn->hdr_idx.v);
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100493 out_fail_idx:
Willy Tarreau48d63db2008-08-03 17:41:33 +0200494 pool_free2(p->rsp_cap_pool, txn->rsp.cap);
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100495 out_fail_rspcap:
Willy Tarreau48d63db2008-08-03 17:41:33 +0200496 pool_free2(p->req_cap_pool, txn->req.cap);
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100497 out_fail_reqcap:
498 out_free_task:
Willy Tarreaua4613182009-03-21 18:13:21 +0100499 task_free(t);
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100500 out_free_session:
Willy Tarreauf54f8bd2008-11-23 19:53:55 +0100501 LIST_DEL(&s->list);
Willy Tarreau8ced9a42007-11-04 17:51:50 +0100502 pool_free2(pool2_session, s);
503 out_close:
504 close(cfd);
505 return 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200506}
507
508
509
Willy Tarreau8797c062007-05-07 00:55:35 +0200510/************************************************************************/
511/* All supported keywords must be declared here. */
512/************************************************************************/
513
514/* set test->ptr to point to the source IPv4/IPv6 address and test->i to the family */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200515static int
Willy Tarreau97be1452007-06-10 11:47:14 +0200516acl_fetch_src(struct proxy *px, struct session *l4, void *l7, int dir,
517 struct acl_expr *expr, struct acl_test *test)
Willy Tarreau8797c062007-05-07 00:55:35 +0200518{
519 test->i = l4->cli_addr.ss_family;
520 if (test->i == AF_INET)
521 test->ptr = (void *)&((struct sockaddr_in *)&l4->cli_addr)->sin_addr;
522 else
523 test->ptr = (void *)&((struct sockaddr_in6 *)(&l4->cli_addr))->sin6_addr;
524 test->flags = ACL_TEST_F_READ_ONLY;
525 return 1;
526}
527
528
529/* set test->i to the connexion's source port */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200530static int
Willy Tarreau97be1452007-06-10 11:47:14 +0200531acl_fetch_sport(struct proxy *px, struct session *l4, void *l7, int dir,
532 struct acl_expr *expr, struct acl_test *test)
Willy Tarreau8797c062007-05-07 00:55:35 +0200533{
534 if (l4->cli_addr.ss_family == AF_INET)
535 test->i = ntohs(((struct sockaddr_in *)&l4->cli_addr)->sin_port);
536 else
537 test->i = ntohs(((struct sockaddr_in6 *)(&l4->cli_addr))->sin6_port);
538 test->flags = 0;
539 return 1;
540}
541
Willy Tarreau662b2d82007-05-08 19:56:15 +0200542
543/* 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 +0200544static int
Willy Tarreau97be1452007-06-10 11:47:14 +0200545acl_fetch_dst(struct proxy *px, struct session *l4, void *l7, int dir,
546 struct acl_expr *expr, struct acl_test *test)
Willy Tarreau662b2d82007-05-08 19:56:15 +0200547{
548 if (!(l4->flags & SN_FRT_ADDR_SET))
549 get_frt_addr(l4);
550
551 test->i = l4->frt_addr.ss_family;
552 if (test->i == AF_INET)
553 test->ptr = (void *)&((struct sockaddr_in *)&l4->frt_addr)->sin_addr;
554 else
555 test->ptr = (void *)&((struct sockaddr_in6 *)(&l4->frt_addr))->sin6_addr;
556 test->flags = ACL_TEST_F_READ_ONLY;
557 return 1;
558}
559
560
561/* set test->i to the frontend connexion's destination port */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200562static int
Willy Tarreau97be1452007-06-10 11:47:14 +0200563acl_fetch_dport(struct proxy *px, struct session *l4, void *l7, int dir,
564 struct acl_expr *expr, struct acl_test *test)
Willy Tarreau662b2d82007-05-08 19:56:15 +0200565{
566 if (!(l4->flags & SN_FRT_ADDR_SET))
567 get_frt_addr(l4);
568
569 if (l4->frt_addr.ss_family == AF_INET)
570 test->i = ntohs(((struct sockaddr_in *)&l4->frt_addr)->sin_port);
571 else
572 test->i = ntohs(((struct sockaddr_in6 *)(&l4->frt_addr))->sin6_port);
573 test->flags = 0;
574 return 1;
575}
576
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100577
Willy Tarreau8797c062007-05-07 00:55:35 +0200578/* set test->i to the number of connexions to the proxy */
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200579static int
Willy Tarreau97be1452007-06-10 11:47:14 +0200580acl_fetch_dconn(struct proxy *px, struct session *l4, void *l7, int dir,
581 struct acl_expr *expr, struct acl_test *test)
Willy Tarreau8797c062007-05-07 00:55:35 +0200582{
583 test->i = px->feconn;
584 return 1;
585}
586
587
588/* Note: must not be declared <const> as its list will be overwritten */
589static struct acl_kw_list acl_kws = {{ },{
Willy Tarreau0ceba5a2008-07-25 19:31:03 +0200590 { "src_port", acl_parse_int, acl_fetch_sport, acl_match_int, ACL_USE_TCP_PERMANENT },
591 { "src", acl_parse_ip, acl_fetch_src, acl_match_ip, ACL_USE_TCP4_PERMANENT },
592 { "dst", acl_parse_ip, acl_fetch_dst, acl_match_ip, ACL_USE_TCP4_PERMANENT },
593 { "dst_port", acl_parse_int, acl_fetch_dport, acl_match_int, ACL_USE_TCP_PERMANENT },
Willy Tarreau662b2d82007-05-08 19:56:15 +0200594#if 0
Alexandre Cassen5eb1a902007-11-29 15:43:32 +0100595 { "src_limit", acl_parse_int, acl_fetch_sconn, acl_match_int },
Willy Tarreau8797c062007-05-07 00:55:35 +0200596#endif
Willy Tarreau0ceba5a2008-07-25 19:31:03 +0200597 { "dst_conn", acl_parse_int, acl_fetch_dconn, acl_match_int, ACL_USE_NOTHING },
Willy Tarreau8797c062007-05-07 00:55:35 +0200598 { NULL, NULL, NULL, NULL },
599}};
600
601
602__attribute__((constructor))
603static void __client_init(void)
604{
605 acl_register_keywords(&acl_kws);
606}
607
608
Willy Tarreaubaaee002006-06-26 02:48:02 +0200609/*
610 * Local variables:
611 * c-indent-level: 8
612 * c-basic-offset: 8
613 * End:
614 */