Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Client-side variables and functions. |
| 3 | * |
Willy Tarreau | d825eef | 2007-05-12 22:35:00 +0200 | [diff] [blame] | 4 | * Copyright 2000-2007 Willy Tarreau <w@1wt.eu> |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 5 | * |
| 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 Tarreau | 2dd0d47 | 2006-06-29 17:53:05 +0200 | [diff] [blame] | 17 | #include <string.h> |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 18 | |
| 19 | #include <sys/socket.h> |
| 20 | #include <sys/stat.h> |
| 21 | #include <sys/types.h> |
| 22 | |
Willy Tarreau | 2dd0d47 | 2006-06-29 17:53:05 +0200 | [diff] [blame] | 23 | #include <common/compat.h> |
Willy Tarreau | e3ba5f0 | 2006-06-29 18:54:54 +0200 | [diff] [blame] | 24 | #include <common/config.h> |
Willy Tarreau | 2dd0d47 | 2006-06-29 17:53:05 +0200 | [diff] [blame] | 25 | #include <common/time.h> |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 26 | |
Willy Tarreau | 8797c06 | 2007-05-07 00:55:35 +0200 | [diff] [blame] | 27 | #include <types/acl.h> |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 28 | #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 Tarreau | 8797c06 | 2007-05-07 00:55:35 +0200 | [diff] [blame] | 37 | #include <proto/acl.h> |
Willy Tarreau | 5446940 | 2006-07-29 16:59:06 +0200 | [diff] [blame] | 38 | #include <proto/buffers.h> |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 39 | #include <proto/client.h> |
| 40 | #include <proto/fd.h> |
| 41 | #include <proto/log.h> |
Willy Tarreau | e5f20dc | 2006-12-03 15:21:35 +0100 | [diff] [blame] | 42 | #include <proto/hdr_idx.h> |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 43 | #include <proto/proto_http.h> |
Willy Tarreau | c6ca1a0 | 2007-05-13 19:43:47 +0200 | [diff] [blame] | 44 | #include <proto/session.h> |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 45 | #include <proto/stream_sock.h> |
| 46 | #include <proto/task.h> |
| 47 | |
| 48 | |
Willy Tarreau | 14c8aac | 2007-05-08 19:46:30 +0200 | [diff] [blame] | 49 | /* Retrieves the original destination address used by the client, and sets the |
| 50 | * SN_FRT_ADDR_SET flag. |
| 51 | */ |
| 52 | void 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 Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 60 | |
| 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 | */ |
| 70 | int event_accept(int fd) { |
| 71 | struct proxy *p = (struct proxy *)fdtab[fd].owner; |
| 72 | struct session *s; |
Willy Tarreau | c2168d3 | 2007-03-03 20:51:44 +0100 | [diff] [blame] | 73 | struct http_txn *txn; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 74 | struct task *t; |
| 75 | int cfd; |
| 76 | int max_accept; |
| 77 | |
| 78 | if (global.nbproc > 1) |
| 79 | max_accept = 8; /* let other processes catch some connections too */ |
| 80 | else |
| 81 | max_accept = -1; |
| 82 | |
Willy Tarreau | f1221aa | 2006-12-17 22:14:12 +0100 | [diff] [blame] | 83 | while (p->feconn < p->maxconn && max_accept--) { |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 84 | struct sockaddr_storage addr; |
| 85 | socklen_t laddr = sizeof(addr); |
| 86 | |
| 87 | if ((cfd = accept(fd, (struct sockaddr *)&addr, &laddr)) == -1) { |
| 88 | switch (errno) { |
| 89 | case EAGAIN: |
| 90 | case EINTR: |
| 91 | case ECONNABORTED: |
| 92 | return 0; /* nothing more to accept */ |
| 93 | case ENFILE: |
| 94 | send_log(p, LOG_EMERG, |
| 95 | "Proxy %s reached system FD limit at %d. Please check system tunables.\n", |
| 96 | p->id, maxfd); |
| 97 | return 0; |
| 98 | case EMFILE: |
| 99 | send_log(p, LOG_EMERG, |
| 100 | "Proxy %s reached process FD limit at %d. Please check 'ulimit-n' and restart.\n", |
| 101 | p->id, maxfd); |
| 102 | return 0; |
| 103 | case ENOBUFS: |
| 104 | case ENOMEM: |
| 105 | send_log(p, LOG_EMERG, |
| 106 | "Proxy %s reached system memory limit at %d sockets. Please check system tunables.\n", |
| 107 | p->id, maxfd); |
| 108 | return 0; |
| 109 | default: |
| 110 | return 0; |
| 111 | } |
| 112 | } |
| 113 | |
Willy Tarreau | c6ca1a0 | 2007-05-13 19:43:47 +0200 | [diff] [blame] | 114 | if ((s = pool_alloc2(pool2_session)) == NULL) { /* disable this proxy for a while */ |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 115 | Alert("out of memory in event_accept().\n"); |
Willy Tarreau | f161a34 | 2007-04-08 16:59:42 +0200 | [diff] [blame] | 116 | EV_FD_CLR(fd, DIR_RD); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 117 | p->state = PR_STIDLE; |
| 118 | close(cfd); |
| 119 | return 0; |
| 120 | } |
| 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 Tarreau | c6ca1a0 | 2007-05-13 19:43:47 +0200 | [diff] [blame] | 131 | pool_free2(pool2_session, s); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 132 | continue; |
| 133 | } |
| 134 | s->flags |= SN_MONITOR; |
| 135 | } |
| 136 | |
Willy Tarreau | c6ca1a0 | 2007-05-13 19:43:47 +0200 | [diff] [blame] | 137 | if ((t = pool_alloc2(pool2_task)) == NULL) { /* disable this proxy for a while */ |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 138 | Alert("out of memory in event_accept().\n"); |
Willy Tarreau | f161a34 | 2007-04-08 16:59:42 +0200 | [diff] [blame] | 139 | EV_FD_CLR(fd, DIR_RD); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 140 | p->state = PR_STIDLE; |
| 141 | close(cfd); |
Willy Tarreau | c6ca1a0 | 2007-05-13 19:43:47 +0200 | [diff] [blame] | 142 | pool_free2(pool2_session, s); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 143 | return 0; |
| 144 | } |
| 145 | |
| 146 | s->cli_addr = addr; |
| 147 | if (cfd >= global.maxsock) { |
| 148 | Alert("accept(): not enough free sockets. Raise -n argument. Giving up.\n"); |
| 149 | close(cfd); |
Willy Tarreau | c6ca1a0 | 2007-05-13 19:43:47 +0200 | [diff] [blame] | 150 | pool_free2(pool2_task, t); |
| 151 | pool_free2(pool2_session, s); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 152 | return 0; |
| 153 | } |
| 154 | |
| 155 | if ((fcntl(cfd, F_SETFL, O_NONBLOCK) == -1) || |
| 156 | (setsockopt(cfd, IPPROTO_TCP, TCP_NODELAY, |
| 157 | (char *) &one, sizeof(one)) == -1)) { |
| 158 | Alert("accept(): cannot set the socket in non blocking mode. Giving up\n"); |
| 159 | close(cfd); |
Willy Tarreau | c6ca1a0 | 2007-05-13 19:43:47 +0200 | [diff] [blame] | 160 | pool_free2(pool2_task, t); |
| 161 | pool_free2(pool2_session, s); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 162 | return 0; |
| 163 | } |
| 164 | |
| 165 | if (p->options & PR_O_TCP_CLI_KA) |
| 166 | setsockopt(cfd, SOL_SOCKET, SO_KEEPALIVE, (char *) &one, sizeof(one)); |
| 167 | |
Willy Tarreau | 964c936 | 2007-01-07 00:38:00 +0100 | [diff] [blame] | 168 | t->wq = NULL; |
Willy Tarreau | 96bcfd7 | 2007-04-29 10:41:56 +0200 | [diff] [blame] | 169 | t->qlist.p = NULL; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 170 | t->state = TASK_IDLE; |
| 171 | t->process = process_session; |
| 172 | t->context = s; |
| 173 | |
| 174 | s->task = t; |
Willy Tarreau | 830ff45 | 2006-12-17 19:31:23 +0100 | [diff] [blame] | 175 | s->be = s->fe = p; |
Willy Tarreau | 73de989 | 2006-11-30 11:40:23 +0100 | [diff] [blame] | 176 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 177 | s->cli_state = (p->mode == PR_MODE_HTTP) ? CL_STHEADERS : CL_STDATA; /* no HTTP headers for non-HTTP proxies */ |
| 178 | s->srv_state = SV_STIDLE; |
| 179 | s->req = s->rep = NULL; /* will be allocated later */ |
| 180 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 181 | s->cli_fd = cfd; |
| 182 | s->srv_fd = -1; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 183 | s->srv = NULL; |
| 184 | s->pend_pos = NULL; |
Willy Tarreau | e2e27a5 | 2007-04-01 00:01:37 +0200 | [diff] [blame] | 185 | s->conn_retries = p->conn_retries; |
Willy Tarreau | ddb358d | 2006-12-17 22:55:52 +0100 | [diff] [blame] | 186 | |
| 187 | /* FIXME: the logs are horribly complicated now, because they are |
Willy Tarreau | e2e27a5 | 2007-04-01 00:01:37 +0200 | [diff] [blame] | 188 | * defined in <p>, <p>, and later <be> and <be>. |
Willy Tarreau | ddb358d | 2006-12-17 22:55:52 +0100 | [diff] [blame] | 189 | */ |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 190 | |
| 191 | if (s->flags & SN_MONITOR) |
| 192 | s->logs.logwait = 0; |
| 193 | else |
| 194 | s->logs.logwait = p->to_log; |
| 195 | |
| 196 | s->logs.tv_accept = now; |
| 197 | s->logs.t_request = -1; |
| 198 | s->logs.t_queue = -1; |
| 199 | s->logs.t_connect = -1; |
| 200 | s->logs.t_data = -1; |
| 201 | s->logs.t_close = 0; |
Willy Tarreau | 35d66b0 | 2007-01-02 00:28:21 +0100 | [diff] [blame] | 202 | s->logs.bytes_in = s->logs.bytes_out = 0; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 203 | s->logs.prx_queue_size = 0; /* we get the number of pending conns before us */ |
| 204 | s->logs.srv_queue_size = 0; /* we will get this number soon */ |
| 205 | |
| 206 | s->data_source = DATA_SRC_NONE; |
| 207 | |
| 208 | s->uniq_id = totalconn; |
Willy Tarreau | f1221aa | 2006-12-17 22:14:12 +0100 | [diff] [blame] | 209 | p->cum_feconn++; /* cum_beconn will be increased once assigned */ |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 210 | |
Willy Tarreau | c2168d3 | 2007-03-03 20:51:44 +0100 | [diff] [blame] | 211 | txn = &s->txn; |
Willy Tarreau | 3d30059 | 2007-03-18 18:34:41 +0100 | [diff] [blame] | 212 | txn->flags = 0; |
Willy Tarreau | 042cc79 | 2007-03-19 16:20:06 +0100 | [diff] [blame] | 213 | /* Those variables will be checked and freed if non-NULL in |
| 214 | * session.c:session_free(). It is important that they are |
| 215 | * properly initialized. |
| 216 | */ |
| 217 | txn->srv_cookie = NULL; |
| 218 | txn->cli_cookie = NULL; |
| 219 | txn->uri = NULL; |
Willy Tarreau | c2168d3 | 2007-03-03 20:51:44 +0100 | [diff] [blame] | 220 | txn->req.cap = NULL; |
| 221 | txn->rsp.cap = NULL; |
| 222 | txn->hdr_idx.v = NULL; |
| 223 | txn->hdr_idx.size = txn->hdr_idx.used = 0; |
Willy Tarreau | 45e73e3 | 2006-12-17 00:05:15 +0100 | [diff] [blame] | 224 | |
| 225 | if (p->mode == PR_MODE_HTTP) { |
Willy Tarreau | 3bac9ff | 2007-03-18 17:31:28 +0100 | [diff] [blame] | 226 | txn->status = -1; |
| 227 | |
Willy Tarreau | c2168d3 | 2007-03-03 20:51:44 +0100 | [diff] [blame] | 228 | txn->req.msg_state = HTTP_MSG_RQBEFORE; /* at the very beginning of the request */ |
| 229 | txn->req.sol = txn->req.eol = NULL; |
| 230 | txn->req.som = txn->req.eoh = 0; /* relative to the buffer */ |
| 231 | txn->auth_hdr.len = -1; |
Willy Tarreau | 45e73e3 | 2006-12-17 00:05:15 +0100 | [diff] [blame] | 232 | |
Willy Tarreau | e2e27a5 | 2007-04-01 00:01:37 +0200 | [diff] [blame] | 233 | if (p->nb_req_cap > 0) { |
Willy Tarreau | cf7f320 | 2007-05-13 22:46:04 +0200 | [diff] [blame] | 234 | if ((txn->req.cap = pool_alloc2(p->req_cap_pool)) == NULL) { |
| 235 | /* no memory */ |
Willy Tarreau | 45e73e3 | 2006-12-17 00:05:15 +0100 | [diff] [blame] | 236 | close(cfd); /* nothing can be done for this fd without memory */ |
Willy Tarreau | c6ca1a0 | 2007-05-13 19:43:47 +0200 | [diff] [blame] | 237 | pool_free2(pool2_task, t); |
| 238 | pool_free2(pool2_session, s); |
Willy Tarreau | 45e73e3 | 2006-12-17 00:05:15 +0100 | [diff] [blame] | 239 | return 0; |
| 240 | } |
Willy Tarreau | e2e27a5 | 2007-04-01 00:01:37 +0200 | [diff] [blame] | 241 | memset(txn->req.cap, 0, p->nb_req_cap*sizeof(char *)); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 242 | } |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 243 | |
Willy Tarreau | 45e73e3 | 2006-12-17 00:05:15 +0100 | [diff] [blame] | 244 | |
Willy Tarreau | e2e27a5 | 2007-04-01 00:01:37 +0200 | [diff] [blame] | 245 | if (p->nb_rsp_cap > 0) { |
Willy Tarreau | cf7f320 | 2007-05-13 22:46:04 +0200 | [diff] [blame] | 246 | if ((txn->rsp.cap = pool_alloc2(p->rsp_cap_pool)) == NULL) { |
| 247 | /* no memory */ |
Willy Tarreau | c2168d3 | 2007-03-03 20:51:44 +0100 | [diff] [blame] | 248 | if (txn->req.cap != NULL) |
Willy Tarreau | cf7f320 | 2007-05-13 22:46:04 +0200 | [diff] [blame] | 249 | pool_free2(p->req_cap_pool, txn->req.cap); |
Willy Tarreau | 45e73e3 | 2006-12-17 00:05:15 +0100 | [diff] [blame] | 250 | close(cfd); /* nothing can be done for this fd without memory */ |
Willy Tarreau | c6ca1a0 | 2007-05-13 19:43:47 +0200 | [diff] [blame] | 251 | pool_free2(pool2_task, t); |
| 252 | pool_free2(pool2_session, s); |
Willy Tarreau | 45e73e3 | 2006-12-17 00:05:15 +0100 | [diff] [blame] | 253 | return 0; |
| 254 | } |
Willy Tarreau | e2e27a5 | 2007-04-01 00:01:37 +0200 | [diff] [blame] | 255 | memset(txn->rsp.cap, 0, p->nb_rsp_cap*sizeof(char *)); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 256 | } |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 257 | |
Willy Tarreau | 45e73e3 | 2006-12-17 00:05:15 +0100 | [diff] [blame] | 258 | |
Willy Tarreau | 1d4154a | 2007-05-13 22:57:02 +0200 | [diff] [blame] | 259 | txn->hdr_idx.size = MAX_HTTP_HDR; |
| 260 | |
| 261 | if ((txn->hdr_idx.v = pool_alloc2(p->hdr_idx_pool)) == NULL) { |
| 262 | /* no memory */ |
Willy Tarreau | c2168d3 | 2007-03-03 20:51:44 +0100 | [diff] [blame] | 263 | if (txn->rsp.cap != NULL) |
Willy Tarreau | cf7f320 | 2007-05-13 22:46:04 +0200 | [diff] [blame] | 264 | pool_free2(p->rsp_cap_pool, txn->rsp.cap); |
Willy Tarreau | c2168d3 | 2007-03-03 20:51:44 +0100 | [diff] [blame] | 265 | if (txn->req.cap != NULL) |
Willy Tarreau | cf7f320 | 2007-05-13 22:46:04 +0200 | [diff] [blame] | 266 | pool_free2(p->req_cap_pool, txn->req.cap); |
Willy Tarreau | e5f20dc | 2006-12-03 15:21:35 +0100 | [diff] [blame] | 267 | close(cfd); /* nothing can be done for this fd without memory */ |
Willy Tarreau | c6ca1a0 | 2007-05-13 19:43:47 +0200 | [diff] [blame] | 268 | pool_free2(pool2_task, t); |
| 269 | pool_free2(pool2_session, s); |
Willy Tarreau | e5f20dc | 2006-12-03 15:21:35 +0100 | [diff] [blame] | 270 | return 0; |
| 271 | } |
Willy Tarreau | c2168d3 | 2007-03-03 20:51:44 +0100 | [diff] [blame] | 272 | hdr_idx_init(&txn->hdr_idx); |
Willy Tarreau | e5f20dc | 2006-12-03 15:21:35 +0100 | [diff] [blame] | 273 | } |
| 274 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 275 | if ((p->mode == PR_MODE_TCP || p->mode == PR_MODE_HTTP) |
| 276 | && (p->logfac1 >= 0 || p->logfac2 >= 0)) { |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 277 | if (p->to_log) { |
| 278 | /* we have the client ip */ |
| 279 | if (s->logs.logwait & LW_CLIP) |
| 280 | if (!(s->logs.logwait &= ~LW_CLIP)) |
Willy Tarreau | 4225058 | 2007-04-01 01:30:43 +0200 | [diff] [blame] | 281 | tcp_sess_log(s); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 282 | } |
| 283 | else if (s->cli_addr.ss_family == AF_INET) { |
| 284 | char pn[INET_ADDRSTRLEN], sn[INET_ADDRSTRLEN]; |
Willy Tarreau | 14c8aac | 2007-05-08 19:46:30 +0200 | [diff] [blame] | 285 | |
| 286 | if (!(s->flags & SN_FRT_ADDR_SET)) |
| 287 | get_frt_addr(s); |
| 288 | |
| 289 | if (inet_ntop(AF_INET, (const void *)&((struct sockaddr_in *)&s->frt_addr)->sin_addr, |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 290 | sn, sizeof(sn)) && |
| 291 | inet_ntop(AF_INET, (const void *)&((struct sockaddr_in *)&s->cli_addr)->sin_addr, |
| 292 | pn, sizeof(pn))) { |
| 293 | send_log(p, LOG_INFO, "Connect from %s:%d to %s:%d (%s/%s)\n", |
| 294 | pn, ntohs(((struct sockaddr_in *)&s->cli_addr)->sin_port), |
Willy Tarreau | 14c8aac | 2007-05-08 19:46:30 +0200 | [diff] [blame] | 295 | sn, ntohs(((struct sockaddr_in *)&s->frt_addr)->sin_port), |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 296 | p->id, (p->mode == PR_MODE_HTTP) ? "HTTP" : "TCP"); |
| 297 | } |
| 298 | } |
| 299 | else { |
| 300 | char pn[INET6_ADDRSTRLEN], sn[INET6_ADDRSTRLEN]; |
Willy Tarreau | 14c8aac | 2007-05-08 19:46:30 +0200 | [diff] [blame] | 301 | |
| 302 | if (!(s->flags & SN_FRT_ADDR_SET)) |
| 303 | get_frt_addr(s); |
| 304 | |
| 305 | if (inet_ntop(AF_INET6, (const void *)&((struct sockaddr_in6 *)&s->frt_addr)->sin6_addr, |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 306 | sn, sizeof(sn)) && |
| 307 | inet_ntop(AF_INET6, (const void *)&((struct sockaddr_in6 *)&s->cli_addr)->sin6_addr, |
| 308 | pn, sizeof(pn))) { |
| 309 | send_log(p, LOG_INFO, "Connect from %s:%d to %s:%d (%s/%s)\n", |
| 310 | pn, ntohs(((struct sockaddr_in6 *)&s->cli_addr)->sin6_port), |
Willy Tarreau | 14c8aac | 2007-05-08 19:46:30 +0200 | [diff] [blame] | 311 | sn, ntohs(((struct sockaddr_in6 *)&s->frt_addr)->sin6_port), |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 312 | p->id, (p->mode == PR_MODE_HTTP) ? "HTTP" : "TCP"); |
| 313 | } |
| 314 | } |
| 315 | } |
| 316 | |
| 317 | if ((global.mode & MODE_DEBUG) && (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE))) { |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 318 | int len; |
Willy Tarreau | 14c8aac | 2007-05-08 19:46:30 +0200 | [diff] [blame] | 319 | |
| 320 | if (!(s->flags & SN_FRT_ADDR_SET)) |
| 321 | get_frt_addr(s); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 322 | |
| 323 | if (s->cli_addr.ss_family == AF_INET) { |
| 324 | char pn[INET_ADDRSTRLEN]; |
| 325 | inet_ntop(AF_INET, |
| 326 | (const void *)&((struct sockaddr_in *)&s->cli_addr)->sin_addr, |
| 327 | pn, sizeof(pn)); |
| 328 | |
| 329 | len = sprintf(trash, "%08x:%s.accept(%04x)=%04x from [%s:%d]\n", |
| 330 | s->uniq_id, p->id, (unsigned short)fd, (unsigned short)cfd, |
| 331 | pn, ntohs(((struct sockaddr_in *)&s->cli_addr)->sin_port)); |
| 332 | } |
| 333 | else { |
| 334 | char pn[INET6_ADDRSTRLEN]; |
| 335 | inet_ntop(AF_INET6, |
| 336 | (const void *)&((struct sockaddr_in6 *)(&s->cli_addr))->sin6_addr, |
| 337 | pn, sizeof(pn)); |
| 338 | |
| 339 | len = sprintf(trash, "%08x:%s.accept(%04x)=%04x from [%s:%d]\n", |
| 340 | s->uniq_id, p->id, (unsigned short)fd, (unsigned short)cfd, |
| 341 | pn, ntohs(((struct sockaddr_in6 *)(&s->cli_addr))->sin6_port)); |
| 342 | } |
| 343 | |
| 344 | write(1, trash, len); |
| 345 | } |
| 346 | |
Willy Tarreau | 7341d94 | 2007-05-13 19:56:02 +0200 | [diff] [blame] | 347 | if ((s->req = pool_alloc2(pool2_buffer)) == NULL) { /* no memory */ |
Willy Tarreau | c2168d3 | 2007-03-03 20:51:44 +0100 | [diff] [blame] | 348 | if (txn->hdr_idx.v != NULL) |
Willy Tarreau | 1d4154a | 2007-05-13 22:57:02 +0200 | [diff] [blame] | 349 | pool_free2(p->hdr_idx_pool, txn->hdr_idx.v); |
Willy Tarreau | c2168d3 | 2007-03-03 20:51:44 +0100 | [diff] [blame] | 350 | if (txn->rsp.cap != NULL) |
Willy Tarreau | cf7f320 | 2007-05-13 22:46:04 +0200 | [diff] [blame] | 351 | pool_free2(p->rsp_cap_pool, txn->rsp.cap); |
Willy Tarreau | c2168d3 | 2007-03-03 20:51:44 +0100 | [diff] [blame] | 352 | if (txn->req.cap != NULL) |
Willy Tarreau | cf7f320 | 2007-05-13 22:46:04 +0200 | [diff] [blame] | 353 | pool_free2(p->req_cap_pool, txn->req.cap); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 354 | close(cfd); /* nothing can be done for this fd without memory */ |
Willy Tarreau | c6ca1a0 | 2007-05-13 19:43:47 +0200 | [diff] [blame] | 355 | pool_free2(pool2_task, t); |
| 356 | pool_free2(pool2_session, s); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 357 | return 0; |
| 358 | } |
| 359 | |
Willy Tarreau | 5446940 | 2006-07-29 16:59:06 +0200 | [diff] [blame] | 360 | buffer_init(s->req); |
| 361 | s->req->rlim += BUFSIZE; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 362 | if (s->cli_state == CL_STHEADERS) /* reserve some space for header rewriting */ |
| 363 | s->req->rlim -= MAXREWRITE; |
| 364 | |
Willy Tarreau | 73de989 | 2006-11-30 11:40:23 +0100 | [diff] [blame] | 365 | s->req->rto = s->fe->clitimeout; |
Willy Tarreau | e2e27a5 | 2007-04-01 00:01:37 +0200 | [diff] [blame] | 366 | s->req->wto = s->be->srvtimeout; |
| 367 | s->req->cto = s->be->srvtimeout; |
Willy Tarreau | d797128 | 2006-07-29 18:36:34 +0200 | [diff] [blame] | 368 | |
Willy Tarreau | 7341d94 | 2007-05-13 19:56:02 +0200 | [diff] [blame] | 369 | if ((s->rep = pool_alloc2(pool2_buffer)) == NULL) { /* no memory */ |
| 370 | pool_free2(pool2_buffer, s->req); |
Willy Tarreau | c2168d3 | 2007-03-03 20:51:44 +0100 | [diff] [blame] | 371 | if (txn->hdr_idx.v != NULL) |
Willy Tarreau | 1d4154a | 2007-05-13 22:57:02 +0200 | [diff] [blame] | 372 | pool_free2(p->hdr_idx_pool, txn->hdr_idx.v); |
Willy Tarreau | c2168d3 | 2007-03-03 20:51:44 +0100 | [diff] [blame] | 373 | if (txn->rsp.cap != NULL) |
Willy Tarreau | cf7f320 | 2007-05-13 22:46:04 +0200 | [diff] [blame] | 374 | pool_free2(p->rsp_cap_pool, txn->rsp.cap); |
Willy Tarreau | c2168d3 | 2007-03-03 20:51:44 +0100 | [diff] [blame] | 375 | if (txn->req.cap != NULL) |
Willy Tarreau | cf7f320 | 2007-05-13 22:46:04 +0200 | [diff] [blame] | 376 | pool_free2(p->req_cap_pool, txn->req.cap); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 377 | close(cfd); /* nothing can be done for this fd without memory */ |
Willy Tarreau | c6ca1a0 | 2007-05-13 19:43:47 +0200 | [diff] [blame] | 378 | pool_free2(pool2_task, t); |
| 379 | pool_free2(pool2_session, s); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 380 | return 0; |
| 381 | } |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 382 | |
Willy Tarreau | 5446940 | 2006-07-29 16:59:06 +0200 | [diff] [blame] | 383 | buffer_init(s->rep); |
| 384 | |
Willy Tarreau | e2e27a5 | 2007-04-01 00:01:37 +0200 | [diff] [blame] | 385 | s->rep->rto = s->be->srvtimeout; |
Willy Tarreau | 830ff45 | 2006-12-17 19:31:23 +0100 | [diff] [blame] | 386 | s->rep->wto = s->fe->clitimeout; |
Willy Tarreau | ee99136 | 2007-05-14 14:37:50 +0200 | [diff] [blame] | 387 | tv_eternity(&s->rep->cto); |
Willy Tarreau | d797128 | 2006-07-29 18:36:34 +0200 | [diff] [blame] | 388 | |
Willy Tarreau | 7a96648 | 2007-04-15 10:58:02 +0200 | [diff] [blame] | 389 | fd_insert(cfd); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 390 | fdtab[cfd].owner = t; |
| 391 | fdtab[cfd].state = FD_STREADY; |
Willy Tarreau | d797128 | 2006-07-29 18:36:34 +0200 | [diff] [blame] | 392 | fdtab[cfd].cb[DIR_RD].f = &stream_sock_read; |
Willy Tarreau | 5446940 | 2006-07-29 16:59:06 +0200 | [diff] [blame] | 393 | fdtab[cfd].cb[DIR_RD].b = s->req; |
Willy Tarreau | f8306d5 | 2006-07-29 19:01:31 +0200 | [diff] [blame] | 394 | fdtab[cfd].cb[DIR_WR].f = &stream_sock_write; |
Willy Tarreau | 5446940 | 2006-07-29 16:59:06 +0200 | [diff] [blame] | 395 | fdtab[cfd].cb[DIR_WR].b = s->rep; |
Willy Tarreau | 3d32d3a | 2007-04-15 11:31:05 +0200 | [diff] [blame] | 396 | fdtab[cfd].ev = 0; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 397 | |
| 398 | if ((p->mode == PR_MODE_HTTP && (s->flags & SN_MONITOR)) || |
Willy Tarreau | 0f77253 | 2006-12-23 20:51:41 +0100 | [diff] [blame] | 399 | (p->mode == PR_MODE_HEALTH && (p->options & PR_O_HTTP_CHK))) { |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 400 | /* Either we got a request from a monitoring system on an HTTP instance, |
| 401 | * or we're in health check mode with the 'httpchk' option enabled. In |
| 402 | * both cases, we return a fake "HTTP/1.0 200 OK" response and we exit. |
| 403 | */ |
Willy Tarreau | 0f77253 | 2006-12-23 20:51:41 +0100 | [diff] [blame] | 404 | struct chunk msg = { .str = "HTTP/1.0 200 OK\r\n\r\n", .len = 19 }; |
| 405 | client_retnclose(s, &msg); /* forge a 200 response */ |
| 406 | } |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 407 | else if (p->mode == PR_MODE_HEALTH) { /* health check mode, no client reading */ |
Willy Tarreau | 0f77253 | 2006-12-23 20:51:41 +0100 | [diff] [blame] | 408 | struct chunk msg = { .str = "OK\n", .len = 3 }; |
| 409 | client_retnclose(s, &msg); /* forge an "OK" response */ |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 410 | } |
| 411 | else { |
Willy Tarreau | f161a34 | 2007-04-08 16:59:42 +0200 | [diff] [blame] | 412 | EV_FD_SET(cfd, DIR_RD); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 413 | } |
| 414 | |
Willy Tarreau | d797128 | 2006-07-29 18:36:34 +0200 | [diff] [blame] | 415 | tv_eternity(&s->req->rex); |
| 416 | tv_eternity(&s->req->wex); |
| 417 | tv_eternity(&s->req->cex); |
| 418 | tv_eternity(&s->rep->rex); |
| 419 | tv_eternity(&s->rep->wex); |
Willy Tarreau | 5465e11 | 2007-04-29 19:09:47 +0200 | [diff] [blame] | 420 | tv_eternity(&t->expire); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 421 | |
Willy Tarreau | d825eef | 2007-05-12 22:35:00 +0200 | [diff] [blame] | 422 | if (tv_isset(&s->fe->clitimeout)) { |
Willy Tarreau | 5465e11 | 2007-04-29 19:09:47 +0200 | [diff] [blame] | 423 | if (EV_FD_ISSET(cfd, DIR_RD)) { |
Willy Tarreau | d825eef | 2007-05-12 22:35:00 +0200 | [diff] [blame] | 424 | tv_add(&s->req->rex, &now, &s->fe->clitimeout); |
Willy Tarreau | 5465e11 | 2007-04-29 19:09:47 +0200 | [diff] [blame] | 425 | t->expire = s->req->rex; |
| 426 | } |
| 427 | if (EV_FD_ISSET(cfd, DIR_WR)) { |
Willy Tarreau | d825eef | 2007-05-12 22:35:00 +0200 | [diff] [blame] | 428 | tv_add(&s->rep->wex, &now, &s->fe->clitimeout); |
Willy Tarreau | 5465e11 | 2007-04-29 19:09:47 +0200 | [diff] [blame] | 429 | t->expire = s->req->rex; |
| 430 | } |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 431 | } |
| 432 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 433 | task_queue(t); |
| 434 | |
| 435 | if (p->mode != PR_MODE_HEALTH) |
Willy Tarreau | 96bcfd7 | 2007-04-29 10:41:56 +0200 | [diff] [blame] | 436 | task_wakeup(t); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 437 | |
Willy Tarreau | f1221aa | 2006-12-17 22:14:12 +0100 | [diff] [blame] | 438 | p->feconn++; /* beconn will be increased later */ |
| 439 | if (p->feconn > p->feconn_max) |
| 440 | p->feconn_max = p->feconn; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 441 | actconn++; |
| 442 | totalconn++; |
| 443 | |
| 444 | // fprintf(stderr, "accepting from %p => %d conn, %d total, task=%p\n", p, actconn, totalconn, t); |
Willy Tarreau | f1221aa | 2006-12-17 22:14:12 +0100 | [diff] [blame] | 445 | } /* end of while (p->feconn < p->maxconn) */ |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 446 | return 0; |
| 447 | } |
| 448 | |
| 449 | |
| 450 | |
Willy Tarreau | 8797c06 | 2007-05-07 00:55:35 +0200 | [diff] [blame] | 451 | /************************************************************************/ |
| 452 | /* All supported keywords must be declared here. */ |
| 453 | /************************************************************************/ |
| 454 | |
| 455 | /* set test->ptr to point to the source IPv4/IPv6 address and test->i to the family */ |
| 456 | static int acl_fetch_src(struct proxy *px, struct session *l4, void *l7, void *arg, struct acl_test *test) |
| 457 | { |
| 458 | test->i = l4->cli_addr.ss_family; |
| 459 | if (test->i == AF_INET) |
| 460 | test->ptr = (void *)&((struct sockaddr_in *)&l4->cli_addr)->sin_addr; |
| 461 | else |
| 462 | test->ptr = (void *)&((struct sockaddr_in6 *)(&l4->cli_addr))->sin6_addr; |
| 463 | test->flags = ACL_TEST_F_READ_ONLY; |
| 464 | return 1; |
| 465 | } |
| 466 | |
| 467 | |
| 468 | /* set test->i to the connexion's source port */ |
| 469 | static int acl_fetch_sport(struct proxy *px, struct session *l4, void *l7, void *arg, struct acl_test *test) |
| 470 | { |
| 471 | if (l4->cli_addr.ss_family == AF_INET) |
| 472 | test->i = ntohs(((struct sockaddr_in *)&l4->cli_addr)->sin_port); |
| 473 | else |
| 474 | test->i = ntohs(((struct sockaddr_in6 *)(&l4->cli_addr))->sin6_port); |
| 475 | test->flags = 0; |
| 476 | return 1; |
| 477 | } |
| 478 | |
Willy Tarreau | 662b2d8 | 2007-05-08 19:56:15 +0200 | [diff] [blame] | 479 | |
| 480 | /* set test->ptr to point to the frontend's IPv4/IPv6 address and test->i to the family */ |
| 481 | static int acl_fetch_dst(struct proxy *px, struct session *l4, void *l7, void *arg, struct acl_test *test) |
| 482 | { |
| 483 | if (!(l4->flags & SN_FRT_ADDR_SET)) |
| 484 | get_frt_addr(l4); |
| 485 | |
| 486 | test->i = l4->frt_addr.ss_family; |
| 487 | if (test->i == AF_INET) |
| 488 | test->ptr = (void *)&((struct sockaddr_in *)&l4->frt_addr)->sin_addr; |
| 489 | else |
| 490 | test->ptr = (void *)&((struct sockaddr_in6 *)(&l4->frt_addr))->sin6_addr; |
| 491 | test->flags = ACL_TEST_F_READ_ONLY; |
| 492 | return 1; |
| 493 | } |
| 494 | |
| 495 | |
| 496 | /* set test->i to the frontend connexion's destination port */ |
| 497 | static int acl_fetch_dport(struct proxy *px, struct session *l4, void *l7, void *arg, struct acl_test *test) |
| 498 | { |
| 499 | if (!(l4->flags & SN_FRT_ADDR_SET)) |
| 500 | get_frt_addr(l4); |
| 501 | |
| 502 | if (l4->frt_addr.ss_family == AF_INET) |
| 503 | test->i = ntohs(((struct sockaddr_in *)&l4->frt_addr)->sin_port); |
| 504 | else |
| 505 | test->i = ntohs(((struct sockaddr_in6 *)(&l4->frt_addr))->sin6_port); |
| 506 | test->flags = 0; |
| 507 | return 1; |
| 508 | } |
| 509 | |
Willy Tarreau | 8797c06 | 2007-05-07 00:55:35 +0200 | [diff] [blame] | 510 | /* set test->i to the number of connexions to the proxy */ |
| 511 | static int acl_fetch_dconn(struct proxy *px, struct session *l4, void *l7, void *arg, struct acl_test *test) |
| 512 | { |
| 513 | test->i = px->feconn; |
| 514 | return 1; |
| 515 | } |
| 516 | |
| 517 | |
| 518 | /* Note: must not be declared <const> as its list will be overwritten */ |
| 519 | static struct acl_kw_list acl_kws = {{ },{ |
| 520 | { "src_port", acl_parse_range, acl_fetch_sport, acl_match_range }, |
Willy Tarreau | 8797c06 | 2007-05-07 00:55:35 +0200 | [diff] [blame] | 521 | { "src", acl_parse_ip, acl_fetch_src, acl_match_ip }, |
| 522 | { "dst", acl_parse_ip, acl_fetch_dst, acl_match_ip }, |
Willy Tarreau | 8797c06 | 2007-05-07 00:55:35 +0200 | [diff] [blame] | 523 | { "dst_port", acl_parse_range, acl_fetch_dport, acl_match_range }, |
Willy Tarreau | 662b2d8 | 2007-05-08 19:56:15 +0200 | [diff] [blame] | 524 | #if 0 |
Willy Tarreau | 8797c06 | 2007-05-07 00:55:35 +0200 | [diff] [blame] | 525 | { "src_limit", acl_parse_int, acl_fetch_sconn, acl_match_max }, |
| 526 | #endif |
| 527 | { "dst_limit", acl_parse_int, acl_fetch_dconn, acl_match_max }, |
| 528 | { NULL, NULL, NULL, NULL }, |
| 529 | }}; |
| 530 | |
| 531 | |
| 532 | __attribute__((constructor)) |
| 533 | static void __client_init(void) |
| 534 | { |
| 535 | acl_register_keywords(&acl_kws); |
| 536 | } |
| 537 | |
| 538 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 539 | /* |
| 540 | * Local variables: |
| 541 | * c-indent-level: 8 |
| 542 | * c-basic-offset: 8 |
| 543 | * End: |
| 544 | */ |