willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1 | /* |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2 | * HA-Proxy : High Availability-enabled HTTP/TCP proxy |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3 | * 2000-2003 - Willy Tarreau - willy AT meta-x DOT org. |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4 | * |
| 5 | * This program is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU General Public License |
| 7 | * as published by the Free Software Foundation; either version |
| 8 | * 2 of the License, or (at your option) any later version. |
| 9 | * |
willy tarreau | 906b268 | 2005-12-17 13:49:52 +0100 | [diff] [blame] | 10 | * Please refer to RFC2068 or RFC2616 for informations about HTTP protocol, and |
| 11 | * RFC2965 for informations about cookies usage. |
| 12 | * |
| 13 | * Pending bugs (may be not fixed because never reproduced) : |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 14 | * - solaris only : sometimes, an HTTP proxy with only a dispatch address causes |
| 15 | * the proxy to terminate (no core) if the client breaks the connection during |
willy tarreau | c29948c | 2005-12-17 13:10:27 +0100 | [diff] [blame] | 16 | * the response. Seen on 1.1.8pre4, but never reproduced. May not be related to |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 17 | * the snprintf() bug since requests were simple (GET / HTTP/1.0), but may be |
| 18 | * related to missing setsid() (fixed in 1.1.15) |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 19 | * - a proxy with an invalid config will prevent the startup even if disabled. |
| 20 | * |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 21 | * ChangeLog has moved to the CHANGELOG file. |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 22 | * |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 23 | * TODO: |
| 24 | * - handle properly intermediate incomplete server headers. Done ? |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 25 | * - handle hot-reconfiguration |
willy tarreau | 906b268 | 2005-12-17 13:49:52 +0100 | [diff] [blame] | 26 | * - fix client/server state transition when server is in connect or headers state |
| 27 | * and client suddenly disconnects. The server *should* switch to SHUT_WR, but |
| 28 | * still handle HTTP headers. |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 29 | * |
| 30 | */ |
| 31 | |
| 32 | #include <stdio.h> |
| 33 | #include <stdlib.h> |
| 34 | #include <unistd.h> |
| 35 | #include <string.h> |
| 36 | #include <ctype.h> |
| 37 | #include <sys/time.h> |
| 38 | #include <sys/types.h> |
| 39 | #include <sys/socket.h> |
| 40 | #include <netinet/tcp.h> |
| 41 | #include <netinet/in.h> |
| 42 | #include <arpa/inet.h> |
| 43 | #include <netdb.h> |
| 44 | #include <fcntl.h> |
| 45 | #include <errno.h> |
| 46 | #include <signal.h> |
| 47 | #include <stdarg.h> |
| 48 | #include <sys/resource.h> |
| 49 | #include <time.h> |
| 50 | #include <regex.h> |
| 51 | #include <syslog.h> |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 52 | #if defined(TPROXY) && defined(NETFILTER) |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 53 | #include <linux/netfilter_ipv4.h> |
| 54 | #endif |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 55 | |
willy tarreau | eedaa9f | 2005-12-17 14:08:03 +0100 | [diff] [blame^] | 56 | #define HAPROXY_VERSION "1.1.23" |
| 57 | #define HAPROXY_DATE "2003/09/20" |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 58 | |
| 59 | /* this is for libc5 for example */ |
| 60 | #ifndef TCP_NODELAY |
| 61 | #define TCP_NODELAY 1 |
| 62 | #endif |
| 63 | |
| 64 | #ifndef SHUT_RD |
| 65 | #define SHUT_RD 0 |
| 66 | #endif |
| 67 | |
| 68 | #ifndef SHUT_WR |
| 69 | #define SHUT_WR 1 |
| 70 | #endif |
| 71 | |
willy tarreau | 535ae7a | 2005-12-17 12:58:00 +0100 | [diff] [blame] | 72 | #define BUFSIZE 8192 |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 73 | |
| 74 | // reserved buffer space for header rewriting |
willy tarreau | 535ae7a | 2005-12-17 12:58:00 +0100 | [diff] [blame] | 75 | #define MAXREWRITE 4096 |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 76 | #define REQURI_LEN 1024 |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 77 | #define CAPTURE_LEN 64 |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 78 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 79 | // max # args on a configuration line |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 80 | #define MAX_LINE_ARGS 40 |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 81 | |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 82 | // max # of added headers per request |
| 83 | #define MAX_NEWHDR 10 |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 84 | |
| 85 | // max # of matches per regexp |
| 86 | #define MAX_MATCH 10 |
| 87 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 88 | /* FIXME: serverid_len and cookiename_len are no longer checked in configuration file */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 89 | #define COOKIENAME_LEN 16 |
| 90 | #define SERVERID_LEN 16 |
| 91 | #define CONN_RETRIES 3 |
| 92 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 93 | #define CHK_CONNTIME 2000 |
willy tarreau | e47c8d7 | 2005-12-17 12:55:52 +0100 | [diff] [blame] | 94 | #define DEF_CHKINTR 2000 |
| 95 | #define DEF_FALLTIME 3 |
| 96 | #define DEF_RISETIME 2 |
willy tarreau | 2f6ba65 | 2005-12-17 13:57:42 +0100 | [diff] [blame] | 97 | #define DEF_CHECK_REQ "OPTIONS / HTTP/1.0\r\n\r\n" |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 98 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 99 | /* default connections limit */ |
| 100 | #define DEFAULT_MAXCONN 2000 |
| 101 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 102 | /* how many bits are needed to code the size of an int (eg: 32bits -> 5) */ |
| 103 | #define INTBITS 5 |
| 104 | |
| 105 | /* show stats this every millisecond, 0 to disable */ |
| 106 | #ifndef STATTIME |
| 107 | #define STATTIME 2000 |
| 108 | #endif |
| 109 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 110 | /* this reduces the number of calls to select() by choosing appropriate |
| 111 | * sheduler precision in milliseconds. It should be near the minimum |
| 112 | * time that is needed by select() to collect all events. All timeouts |
| 113 | * are rounded up by adding this value prior to pass it to select(). |
| 114 | */ |
| 115 | #define SCHEDULER_RESOLUTION 9 |
| 116 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 117 | #define MINTIME(old, new) (((new)<0)?(old):(((old)<0||(new)<(old))?(new):(old))) |
| 118 | #define SETNOW(a) (*a=now) |
| 119 | |
willy tarreau | 9da061b | 2005-12-17 12:29:56 +0100 | [diff] [blame] | 120 | /****** string-specific macros and functions ******/ |
| 121 | /* if a > max, then bound <a> to <max>. The macro returns the new <a> */ |
| 122 | #define UBOUND(a, max) ({ typeof(a) b = (max); if ((a) > b) (a) = b; (a); }) |
| 123 | |
| 124 | /* if a < min, then bound <a> to <min>. The macro returns the new <a> */ |
| 125 | #define LBOUND(a, min) ({ typeof(a) b = (min); if ((a) < b) (a) = b; (a); }) |
| 126 | |
willy tarreau | 9da061b | 2005-12-17 12:29:56 +0100 | [diff] [blame] | 127 | /* |
| 128 | * copies at most <size-1> chars from <src> to <dst>. Last char is always |
| 129 | * set to 0, unless <size> is 0. The number of chars copied is returned |
| 130 | * (excluding the terminating zero). |
| 131 | * This code has been optimized for size and speed : on x86, it's 45 bytes |
| 132 | * long, uses only registers, and consumes only 4 cycles per char. |
| 133 | */ |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 134 | int strlcpy2(char *dst, const char *src, int size) { |
willy tarreau | 9da061b | 2005-12-17 12:29:56 +0100 | [diff] [blame] | 135 | char *orig = dst; |
| 136 | if (size) { |
| 137 | while (--size && (*dst = *src)) { |
| 138 | src++; dst++; |
| 139 | } |
| 140 | *dst = 0; |
| 141 | } |
| 142 | return dst - orig; |
| 143 | } |
willy tarreau | 9da061b | 2005-12-17 12:29:56 +0100 | [diff] [blame] | 144 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 145 | #define MEM_OPTIM |
| 146 | #ifdef MEM_OPTIM |
| 147 | /* |
| 148 | * Returns a pointer to type <type> taken from the |
| 149 | * pool <pool_type> or dynamically allocated. In the |
| 150 | * first case, <pool_type> is updated to point to the |
| 151 | * next element in the list. |
| 152 | */ |
| 153 | #define pool_alloc(type) ({ \ |
| 154 | void *p; \ |
| 155 | if ((p = pool_##type) == NULL) \ |
| 156 | p = malloc(sizeof_##type); \ |
| 157 | else { \ |
| 158 | pool_##type = *(void **)pool_##type; \ |
| 159 | } \ |
| 160 | p; \ |
| 161 | }) |
| 162 | |
| 163 | /* |
| 164 | * Puts a memory area back to the corresponding pool. |
| 165 | * Items are chained directly through a pointer that |
| 166 | * is written in the beginning of the memory area, so |
willy tarreau | 9da061b | 2005-12-17 12:29:56 +0100 | [diff] [blame] | 167 | * there's no need for any carrier cell. This implies |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 168 | * that each memory area is at least as big as one |
| 169 | * pointer. |
| 170 | */ |
| 171 | #define pool_free(type, ptr) ({ \ |
| 172 | *(void **)ptr = (void *)pool_##type; \ |
| 173 | pool_##type = (void *)ptr; \ |
| 174 | }) |
| 175 | |
| 176 | #else |
| 177 | #define pool_alloc(type) (calloc(1,sizeof_##type)); |
| 178 | #define pool_free(type, ptr) (free(ptr)); |
| 179 | #endif /* MEM_OPTIM */ |
| 180 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 181 | #define sizeof_task sizeof(struct task) |
| 182 | #define sizeof_session sizeof(struct session) |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 183 | #define sizeof_buffer sizeof(struct buffer) |
| 184 | #define sizeof_fdtab sizeof(struct fdtab) |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 185 | #define sizeof_requri REQURI_LEN |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 186 | #define sizeof_capture CAPTURE_LEN |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 187 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 188 | /* different possible states for the sockets */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 189 | #define FD_STCLOSE 0 |
| 190 | #define FD_STLISTEN 1 |
| 191 | #define FD_STCONN 2 |
| 192 | #define FD_STREADY 3 |
| 193 | #define FD_STERROR 4 |
| 194 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 195 | /* values for task->state */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 196 | #define TASK_IDLE 0 |
| 197 | #define TASK_RUNNING 1 |
| 198 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 199 | /* values for proxy->state */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 200 | #define PR_STNEW 0 |
| 201 | #define PR_STIDLE 1 |
| 202 | #define PR_STRUN 2 |
| 203 | #define PR_STDISABLED 3 |
| 204 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 205 | /* values for proxy->mode */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 206 | #define PR_MODE_TCP 0 |
| 207 | #define PR_MODE_HTTP 1 |
| 208 | #define PR_MODE_HEALTH 2 |
| 209 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 210 | /* bits for proxy->options */ |
| 211 | #define PR_O_REDISP 1 /* allow reconnection to dispatch in case of errors */ |
| 212 | #define PR_O_TRANSP 2 /* transparent mode : use original DEST as dispatch */ |
| 213 | #define PR_O_COOK_RW 4 /* rewrite all direct cookies with the right serverid */ |
| 214 | #define PR_O_COOK_IND 8 /* keep only indirect cookies */ |
| 215 | #define PR_O_COOK_INS 16 /* insert cookies when not accessing a server directly */ |
| 216 | #define PR_O_COOK_ANY (PR_O_COOK_RW | PR_O_COOK_IND | PR_O_COOK_INS) |
| 217 | #define PR_O_BALANCE_RR 32 /* balance in round-robin mode */ |
| 218 | #define PR_O_BALANCE (PR_O_BALANCE_RR) |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 219 | #define PR_O_KEEPALIVE 64 /* follow keep-alive sessions */ |
| 220 | #define PR_O_FWDFOR 128 /* insert x-forwarded-for with client address */ |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 221 | #define PR_O_BIND_SRC 256 /* bind to a specific source address when connect()ing */ |
| 222 | #define PR_O_NULLNOLOG 512 /* a connect without request will not be logged */ |
willy tarreau | 240afa6 | 2005-12-17 13:14:35 +0100 | [diff] [blame] | 223 | #define PR_O_COOK_NOC 1024 /* add a 'Cache-control' header with the cookie */ |
willy tarreau | cd87894 | 2005-12-17 13:27:43 +0100 | [diff] [blame] | 224 | #define PR_O_COOK_POST 2048 /* don't insert cookies for requests other than a POST */ |
willy tarreau | bc4e1fb | 2005-12-17 13:32:07 +0100 | [diff] [blame] | 225 | #define PR_O_HTTP_CHK 4096 /* use HTTP 'OPTIONS' method to check server health */ |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 226 | #define PR_O_PERSIST 8192 /* server persistence stays effective even when server is down */ |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 227 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 228 | |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 229 | /* various session flags */ |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 230 | #define SN_DIRECT 0x00000001 /* connection made on the server matching the client cookie */ |
| 231 | #define SN_CLDENY 0x00000002 /* a client header matches a deny regex */ |
| 232 | #define SN_CLALLOW 0x00000004 /* a client header matches an allow regex */ |
| 233 | #define SN_SVDENY 0x00000008 /* a server header matches a deny regex */ |
| 234 | #define SN_SVALLOW 0x00000010 /* a server header matches an allow regex */ |
| 235 | #define SN_POST 0x00000020 /* the request was an HTTP POST */ |
| 236 | |
| 237 | #define SN_CK_NONE 0x00000000 /* this session had no cookie */ |
| 238 | #define SN_CK_INVALID 0x00000040 /* this session had a cookie which matches no server */ |
| 239 | #define SN_CK_DOWN 0x00000080 /* this session had cookie matching a down server */ |
| 240 | #define SN_CK_VALID 0x000000C0 /* this session had cookie matching a valid server */ |
| 241 | #define SN_CK_MASK 0x000000C0 /* mask to get this session's cookie flags */ |
| 242 | #define SN_CK_SHIFT 6 /* bit shift */ |
| 243 | |
| 244 | #define SN_ERR_CLITO 0x00000100 /* client time-out */ |
| 245 | #define SN_ERR_CLICL 0x00000200 /* client closed (read/write error) */ |
| 246 | #define SN_ERR_SRVTO 0x00000300 /* server time-out, connect time-out */ |
| 247 | #define SN_ERR_SRVCL 0x00000400 /* server closed (connect/read/write error) */ |
| 248 | #define SN_ERR_PRXCOND 0x00000500 /* the proxy decided to close (deny...) */ |
| 249 | #define SN_ERR_MASK 0x00000700 /* mask to get only session error flags */ |
| 250 | #define SN_ERR_SHIFT 8 /* bit shift */ |
| 251 | |
| 252 | #define SN_FINST_R 0x00001000 /* session ended during client request */ |
| 253 | #define SN_FINST_C 0x00002000 /* session ended during server connect */ |
| 254 | #define SN_FINST_H 0x00003000 /* session ended during server headers */ |
| 255 | #define SN_FINST_D 0x00004000 /* session ended during data phase */ |
| 256 | #define SN_FINST_L 0x00005000 /* session ended while pushing last data to client */ |
| 257 | #define SN_FINST_MASK 0x00007000 /* mask to get only final session state flags */ |
| 258 | #define SN_FINST_SHIFT 12 /* bit shift */ |
| 259 | |
| 260 | #define SN_SCK_NONE 0x00000000 /* no set-cookie seen for the server cookie */ |
| 261 | #define SN_SCK_DELETED 0x00010000 /* existing set-cookie deleted or changed */ |
| 262 | #define SN_SCK_INSERTED 0x00020000 /* new set-cookie inserted or changed existing one */ |
| 263 | #define SN_SCK_SEEN 0x00040000 /* set-cookie seen for the server cookie */ |
| 264 | #define SN_SCK_MASK 0x00070000 /* mask to get the set-cookie field */ |
| 265 | #define SN_SCK_SHIFT 16 /* bit shift */ |
| 266 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 267 | |
| 268 | /* different possible states for the client side */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 269 | #define CL_STHEADERS 0 |
| 270 | #define CL_STDATA 1 |
| 271 | #define CL_STSHUTR 2 |
| 272 | #define CL_STSHUTW 3 |
| 273 | #define CL_STCLOSE 4 |
| 274 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 275 | /* different possible states for the server side */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 276 | #define SV_STIDLE 0 |
| 277 | #define SV_STCONN 1 |
| 278 | #define SV_STHEADERS 2 |
| 279 | #define SV_STDATA 3 |
| 280 | #define SV_STSHUTR 4 |
| 281 | #define SV_STSHUTW 5 |
| 282 | #define SV_STCLOSE 6 |
| 283 | |
| 284 | /* result of an I/O event */ |
| 285 | #define RES_SILENT 0 /* didn't happen */ |
| 286 | #define RES_DATA 1 /* data were sent or received */ |
| 287 | #define RES_NULL 2 /* result is 0 (read == 0), or connect without need for writing */ |
| 288 | #define RES_ERROR 3 /* result -1 or error on the socket (eg: connect()) */ |
| 289 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 290 | /* modes of operation (global.mode) */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 291 | #define MODE_DEBUG 1 |
| 292 | #define MODE_STATS 2 |
| 293 | #define MODE_LOG 4 |
| 294 | #define MODE_DAEMON 8 |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 295 | #define MODE_QUIET 16 |
| 296 | |
| 297 | /* server flags */ |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 298 | #define SRV_RUNNING 1 /* the server is UP */ |
| 299 | #define SRV_BACKUP 2 /* this server is a backup server */ |
| 300 | #define SRV_MAPPORTS 4 /* this server uses mapped ports */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 301 | |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 302 | /* what to do when a header matches a regex */ |
| 303 | #define ACT_ALLOW 0 /* allow the request */ |
| 304 | #define ACT_REPLACE 1 /* replace the matching header */ |
| 305 | #define ACT_REMOVE 2 /* remove the matching header */ |
| 306 | #define ACT_DENY 3 /* deny the request */ |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 307 | #define ACT_PASS 4 /* pass this header without allowing or denying the request */ |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 308 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 309 | /* configuration sections */ |
| 310 | #define CFG_NONE 0 |
| 311 | #define CFG_GLOBAL 1 |
| 312 | #define CFG_LISTEN 2 |
| 313 | |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 314 | /* fields that need to be logged. They appear as flags in session->logs.logwait */ |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 315 | #define LW_DATE 1 /* date */ |
| 316 | #define LW_CLIP 2 /* CLient IP */ |
| 317 | #define LW_SVIP 4 /* SerVer IP */ |
| 318 | #define LW_SVID 8 /* server ID */ |
| 319 | #define LW_REQ 16 /* http REQuest */ |
| 320 | #define LW_RESP 32 /* http RESPonse */ |
| 321 | #define LW_PXIP 64 /* proxy IP */ |
| 322 | #define LW_PXID 128 /* proxy ID */ |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 323 | #define LW_BYTES 256 /* bytes read from server */ |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 324 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 325 | /*********************************************************************/ |
| 326 | |
| 327 | #define LIST_HEAD(a) ((void *)(&(a))) |
| 328 | |
| 329 | /*********************************************************************/ |
| 330 | |
| 331 | struct hdr_exp { |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 332 | struct hdr_exp *next; |
| 333 | regex_t *preg; /* expression to look for */ |
| 334 | int action; /* ACT_ALLOW, ACT_REPLACE, ACT_REMOVE, ACT_DENY */ |
| 335 | char *replace; /* expression to set instead */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 336 | }; |
| 337 | |
| 338 | struct buffer { |
| 339 | unsigned int l; /* data length */ |
| 340 | char *r, *w, *h, *lr; /* read ptr, write ptr, last header ptr, last read */ |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 341 | char *rlim; /* read limit, used for header rewriting */ |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 342 | unsigned long long total; /* total data read */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 343 | char data[BUFSIZE]; |
| 344 | }; |
| 345 | |
| 346 | struct server { |
| 347 | struct server *next; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 348 | int state; /* server state (SRV_*) */ |
| 349 | int cklen; /* the len of the cookie, to speed up checks */ |
| 350 | char *cookie; /* the id set in the cookie */ |
| 351 | char *id; /* just for identification */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 352 | struct sockaddr_in addr; /* the address to connect to */ |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 353 | short check_port; /* the port to use for the health checks */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 354 | int health; /* 0->rise-1 = bad; rise->rise+fall-1 = good */ |
willy tarreau | e47c8d7 | 2005-12-17 12:55:52 +0100 | [diff] [blame] | 355 | int rise, fall; /* time in iterations */ |
| 356 | int inter; /* time in milliseconds */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 357 | int result; /* 0 = connect OK, -1 = connect KO */ |
| 358 | int curfd; /* file desc used for current test, or -1 if not in test */ |
willy tarreau | 535ae7a | 2005-12-17 12:58:00 +0100 | [diff] [blame] | 359 | struct proxy *proxy; /* the proxy this server belongs to */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 360 | }; |
| 361 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 362 | /* The base for all tasks */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 363 | struct task { |
| 364 | struct task *next, *prev; /* chaining ... */ |
| 365 | struct task *rqnext; /* chaining in run queue ... */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 366 | struct task *wq; /* the wait queue this task is in */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 367 | int state; /* task state : IDLE or RUNNING */ |
| 368 | struct timeval expire; /* next expiration time for this task, use only for fast sorting */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 369 | int (*process)(struct task *t); /* the function which processes the task */ |
| 370 | void *context; /* the task's context */ |
| 371 | }; |
| 372 | |
| 373 | /* WARNING: if new fields are added, they must be initialized in event_accept() */ |
| 374 | struct session { |
| 375 | struct task *task; /* the task associated with this session */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 376 | /* application specific below */ |
| 377 | struct timeval crexpire; /* expiration date for a client read */ |
| 378 | struct timeval cwexpire; /* expiration date for a client write */ |
| 379 | struct timeval srexpire; /* expiration date for a server read */ |
| 380 | struct timeval swexpire; /* expiration date for a server write */ |
| 381 | struct timeval cnexpire; /* expiration date for a connect */ |
| 382 | char res_cr, res_cw, res_sr, res_sw;/* results of some events */ |
| 383 | struct proxy *proxy; /* the proxy this socket belongs to */ |
| 384 | int cli_fd; /* the client side fd */ |
| 385 | int srv_fd; /* the server side fd */ |
| 386 | int cli_state; /* state of the client side */ |
| 387 | int srv_state; /* state of the server side */ |
| 388 | int conn_retries; /* number of connect retries left */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 389 | int flags; /* some flags describing the session */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 390 | struct buffer *req; /* request buffer */ |
| 391 | struct buffer *rep; /* response buffer */ |
| 392 | struct sockaddr_in cli_addr; /* the client address */ |
| 393 | struct sockaddr_in srv_addr; /* the address to connect to */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 394 | struct server *srv; /* the server being used */ |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 395 | struct { |
| 396 | int logwait; /* log fields waiting to be collected : LW_* */ |
| 397 | struct timeval tv_accept; /* date of the accept() (beginning of the session) */ |
| 398 | long t_request; /* delay before the end of the request arrives, -1 if never occurs */ |
| 399 | long t_connect; /* delay before the connect() to the server succeeds, -1 if never occurs */ |
| 400 | long t_data; /* delay before the first data byte from the server ... */ |
| 401 | unsigned long t_close; /* total session duration */ |
| 402 | char *uri; /* first line if log needed, NULL otherwise */ |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 403 | char *cli_cookie; /* cookie presented by the client, in capture mode */ |
| 404 | char *srv_cookie; /* cookie presented by the server, in capture mode */ |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 405 | int status; /* HTTP status from the server, negative if from proxy */ |
| 406 | long long bytes; /* number of bytes transferred from the server */ |
| 407 | } logs; |
willy tarreau | 2f6ba65 | 2005-12-17 13:57:42 +0100 | [diff] [blame] | 408 | unsigned int uniq_id; /* unique ID used for the traces */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 409 | }; |
| 410 | |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 411 | struct listener { |
| 412 | int fd; /* the listen socket */ |
| 413 | struct sockaddr_in addr; /* the address we listen to */ |
| 414 | struct listener *next; /* next address or NULL */ |
| 415 | }; |
| 416 | |
| 417 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 418 | struct proxy { |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 419 | struct listener *listen; /* the listen addresses and sockets */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 420 | int state; /* proxy state */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 421 | struct sockaddr_in dispatch_addr; /* the default address to connect to */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 422 | struct server *srv, *cursrv; /* known servers, current server */ |
| 423 | int nbservers; /* # of servers */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 424 | char *cookie_name; /* name of the cookie to look for */ |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 425 | int cookie_len; /* strlen(cookie_len), computed only once */ |
| 426 | char *capture_name; /* beginning of the name of the cookie to capture */ |
| 427 | int capture_namelen; /* length of the cookie name to match */ |
| 428 | int capture_len; /* length of the string to be captured */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 429 | int clitimeout; /* client I/O timeout (in milliseconds) */ |
| 430 | int srvtimeout; /* server I/O timeout (in milliseconds) */ |
| 431 | int contimeout; /* connect timeout (in milliseconds) */ |
| 432 | char *id; /* proxy id */ |
| 433 | int nbconn; /* # of active sessions */ |
| 434 | int maxconn; /* max # of active sessions */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 435 | int conn_retries; /* maximum number of connect retries */ |
| 436 | int options; /* PR_O_REDISP, PR_O_TRANSP */ |
| 437 | int mode; /* mode = PR_MODE_TCP, PR_MODE_HTTP or PR_MODE_HEALTH */ |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 438 | struct sockaddr_in source_addr; /* the address to which we want to bind for connect() */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 439 | struct proxy *next; |
| 440 | struct sockaddr_in logsrv1, logsrv2; /* 2 syslog servers */ |
| 441 | char logfac1, logfac2; /* log facility for both servers. -1 = disabled */ |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 442 | int loglev1, loglev2; /* log level for each server, 7 by default */ |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 443 | int to_log; /* things to be logged (LW_*) */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 444 | struct timeval stop_time; /* date to stop listening, when stopping != 0 */ |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 445 | int nb_reqadd, nb_rspadd; |
| 446 | struct hdr_exp *req_exp; /* regular expressions for request headers */ |
| 447 | struct hdr_exp *rsp_exp; /* regular expressions for response headers */ |
| 448 | char *req_add[MAX_NEWHDR], *rsp_add[MAX_NEWHDR]; /* headers to be added */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 449 | int grace; /* grace time after stop request */ |
willy tarreau | 2f6ba65 | 2005-12-17 13:57:42 +0100 | [diff] [blame] | 450 | char *check_req; /* HTTP request to use if PR_O_HTTP_CHK is set, else NULL */ |
| 451 | int check_len; /* Length of the HTTP request */ |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 452 | struct { |
| 453 | char *msg400; /* message for error 400 */ |
| 454 | int len400; /* message length for error 400 */ |
| 455 | char *msg403; /* message for error 403 */ |
| 456 | int len403; /* message length for error 403 */ |
| 457 | char *msg408; /* message for error 408 */ |
| 458 | int len408; /* message length for error 408 */ |
| 459 | char *msg500; /* message for error 500 */ |
| 460 | int len500; /* message length for error 500 */ |
| 461 | char *msg502; /* message for error 502 */ |
| 462 | int len502; /* message length for error 502 */ |
| 463 | char *msg503; /* message for error 503 */ |
| 464 | int len503; /* message length for error 503 */ |
| 465 | char *msg504; /* message for error 504 */ |
| 466 | int len504; /* message length for error 504 */ |
| 467 | } errmsg; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 468 | }; |
| 469 | |
| 470 | /* info about one given fd */ |
| 471 | struct fdtab { |
| 472 | int (*read)(int fd); /* read function */ |
| 473 | int (*write)(int fd); /* write function */ |
| 474 | struct task *owner; /* the session (or proxy) associated with this fd */ |
| 475 | int state; /* the state of this fd */ |
| 476 | }; |
| 477 | |
| 478 | /*********************************************************************/ |
| 479 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 480 | int cfg_maxpconn = 2000; /* # of simultaneous connections per proxy (-N) */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 481 | char *cfg_cfgfile = NULL; /* configuration file */ |
| 482 | char *progname = NULL; /* program name */ |
| 483 | int pid; /* current process id */ |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 484 | |
| 485 | /* global options */ |
| 486 | static struct { |
| 487 | int uid; |
| 488 | int gid; |
| 489 | int nbproc; |
| 490 | int maxconn; |
| 491 | int maxsock; /* max # of sockets */ |
| 492 | int mode; |
| 493 | char *chroot; |
| 494 | int logfac1, logfac2; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 495 | int loglev1, loglev2; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 496 | struct sockaddr_in logsrv1, logsrv2; |
| 497 | } global = { |
| 498 | logfac1 : -1, |
| 499 | logfac2 : -1, |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 500 | loglev1 : 7, /* max syslog level : debug */ |
| 501 | loglev2 : 7, |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 502 | /* others NULL OK */ |
| 503 | }; |
| 504 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 505 | /*********************************************************************/ |
| 506 | |
| 507 | fd_set *ReadEvent, |
| 508 | *WriteEvent, |
| 509 | *StaticReadEvent, |
| 510 | *StaticWriteEvent; |
| 511 | |
| 512 | void **pool_session = NULL, |
| 513 | **pool_buffer = NULL, |
| 514 | **pool_fdtab = NULL, |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 515 | **pool_requri = NULL, |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 516 | **pool_task = NULL, |
| 517 | **pool_capture = NULL; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 518 | |
| 519 | struct proxy *proxy = NULL; /* list of all existing proxies */ |
| 520 | struct fdtab *fdtab = NULL; /* array of all the file descriptors */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 521 | struct task *rq = NULL; /* global run queue */ |
| 522 | struct task wait_queue = { /* global wait queue */ |
| 523 | prev:LIST_HEAD(wait_queue), |
| 524 | next:LIST_HEAD(wait_queue) |
| 525 | }; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 526 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 527 | static int totalconn = 0; /* total # of terminated sessions */ |
| 528 | static int actconn = 0; /* # of active sessions */ |
| 529 | static int maxfd = 0; /* # of the highest fd + 1 */ |
| 530 | static int listeners = 0; /* # of listeners */ |
| 531 | static int stopping = 0; /* non zero means stopping in progress */ |
| 532 | static struct timeval now = {0,0}; /* the current date at any moment */ |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 533 | static struct proxy defproxy; /* fake proxy used to assign default values on all instances */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 534 | |
| 535 | static regmatch_t pmatch[MAX_MATCH]; /* rm_so, rm_eo for regular expressions */ |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 536 | /* this is used to drain data, and as a temporary buffer for sprintf()... */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 537 | static char trash[BUFSIZE]; |
| 538 | |
| 539 | /* |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 540 | * Syslog facilities and levels. Conforming to RFC3164. |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 541 | */ |
| 542 | |
| 543 | #define MAX_SYSLOG_LEN 1024 |
| 544 | #define NB_LOG_FACILITIES 24 |
| 545 | const char *log_facilities[NB_LOG_FACILITIES] = { |
| 546 | "kern", "user", "mail", "daemon", |
| 547 | "auth", "syslog", "lpr", "news", |
| 548 | "uucp", "cron", "auth2", "ftp", |
| 549 | "ntp", "audit", "alert", "cron2", |
| 550 | "local0", "local1", "local2", "local3", |
| 551 | "local4", "local5", "local6", "local7" |
| 552 | }; |
| 553 | |
| 554 | |
| 555 | #define NB_LOG_LEVELS 8 |
| 556 | const char *log_levels[NB_LOG_LEVELS] = { |
| 557 | "emerg", "alert", "crit", "err", |
| 558 | "warning", "notice", "info", "debug" |
| 559 | }; |
| 560 | |
| 561 | #define SYSLOG_PORT 514 |
| 562 | |
| 563 | const char *monthname[12] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", |
| 564 | "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" }; |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 565 | |
| 566 | const char sess_term_cond[8] = "-cCsSP67"; /* normal, CliTo, CliErr, SrvTo, SrvErr, PxErr, unknown */ |
| 567 | const char sess_fin_state[8] = "-RCHDL67"; /* cliRequest, srvConnect, srvHeader, Data, Last, unknown */ |
| 568 | const char sess_cookie[4] = "NIDV"; /* No cookie, Invalid cookie, cookie for a Down server, Valid cookie */ |
| 569 | const char sess_set_cookie[8] = "N1I3PD5R"; /* No set-cookie, unknown, Set-Cookie Inserted, unknown, |
| 570 | Set-cookie seen and left unchanged (passive), Set-cookie Deleted, |
| 571 | unknown, Set-cookie Rewritten */ |
| 572 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 573 | #define MAX_HOSTNAME_LEN 32 |
| 574 | static char hostname[MAX_HOSTNAME_LEN] = ""; |
| 575 | |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 576 | const char *HTTP_302 = |
| 577 | "HTTP/1.0 302 Found\r\n" |
| 578 | "Cache-Control: no-cache\r\n" |
| 579 | "Connection: close\r\n" |
| 580 | "Location: "; /* not terminated since it will be concatenated with the URL */ |
| 581 | |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 582 | const char *HTTP_400 = |
| 583 | "HTTP/1.0 400 Bad request\r\n" |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 584 | "Cache-Control: no-cache\r\n" |
| 585 | "Connection: close\r\n" |
| 586 | "\r\n" |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 587 | "<html><body><h1>400 Bad request</h1>\nYour browser sent an invalid request.\n</body></html>\n"; |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 588 | |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 589 | const char *HTTP_403 = |
| 590 | "HTTP/1.0 403 Forbidden\r\n" |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 591 | "Cache-Control: no-cache\r\n" |
| 592 | "Connection: close\r\n" |
| 593 | "\r\n" |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 594 | "<html><body><h1>403 Forbidden</h1>\nRequest forbidden by administrative rules.\n</body></html>\n"; |
| 595 | |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 596 | const char *HTTP_408 = |
| 597 | "HTTP/1.0 408 Request Time-out\r\n" |
| 598 | "Cache-Control: no-cache\r\n" |
| 599 | "Connection: close\r\n" |
| 600 | "\r\n" |
| 601 | "<html><body><h1>408 Request Time-out</h1>\nYour browser didn't send a complete request in time.\n</body></html>\n"; |
| 602 | |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 603 | const char *HTTP_500 = |
| 604 | "HTTP/1.0 500 Server Error\r\n" |
| 605 | "Cache-Control: no-cache\r\n" |
| 606 | "Connection: close\r\n" |
| 607 | "\r\n" |
| 608 | "<html><body><h1>500 Server Error</h1>\nAn internal server error occured.\n</body></html>\n"; |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 609 | |
| 610 | const char *HTTP_502 = |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 611 | "HTTP/1.0 502 Bad Gateway\r\n" |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 612 | "Cache-Control: no-cache\r\n" |
| 613 | "Connection: close\r\n" |
| 614 | "\r\n" |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 615 | "<html><body><h1>502 Bad Gateway</h1>\nThe server returned an invalid or incomplete response.\n</body></html>\n"; |
| 616 | |
| 617 | const char *HTTP_503 = |
| 618 | "HTTP/1.0 503 Service Unavailable\r\n" |
| 619 | "Cache-Control: no-cache\r\n" |
| 620 | "Connection: close\r\n" |
| 621 | "\r\n" |
| 622 | "<html><body><h1>503 Service Unavailable</h1>\nNo server is available to handle this request.\n</body></html>\n"; |
| 623 | |
| 624 | const char *HTTP_504 = |
| 625 | "HTTP/1.0 504 Gateway Time-out\r\n" |
| 626 | "Cache-Control: no-cache\r\n" |
| 627 | "Connection: close\r\n" |
| 628 | "\r\n" |
| 629 | "<html><body><h1>504 Gateway Time-out</h1>\nThe server didn't respond in time.\n</body></html>\n"; |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 630 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 631 | /*********************************************************************/ |
| 632 | /* statistics ******************************************************/ |
| 633 | /*********************************************************************/ |
| 634 | |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 635 | #if STATTIME > 0 |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 636 | static int stats_tsk_lsrch, stats_tsk_rsrch, |
| 637 | stats_tsk_good, stats_tsk_right, stats_tsk_left, |
| 638 | stats_tsk_new, stats_tsk_nsrch; |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 639 | #endif |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 640 | |
| 641 | |
| 642 | /*********************************************************************/ |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 643 | /* debugging *******************************************************/ |
| 644 | /*********************************************************************/ |
| 645 | #ifdef DEBUG_FULL |
| 646 | static char *cli_stnames[5] = {"HDR", "DAT", "SHR", "SHW", "CLS" }; |
| 647 | static char *srv_stnames[7] = {"IDL", "CON", "HDR", "DAT", "SHR", "SHW", "CLS" }; |
| 648 | #endif |
| 649 | |
| 650 | /*********************************************************************/ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 651 | /* function prototypes *********************************************/ |
| 652 | /*********************************************************************/ |
| 653 | |
| 654 | int event_accept(int fd); |
| 655 | int event_cli_read(int fd); |
| 656 | int event_cli_write(int fd); |
| 657 | int event_srv_read(int fd); |
| 658 | int event_srv_write(int fd); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 659 | int process_session(struct task *t); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 660 | |
| 661 | /*********************************************************************/ |
| 662 | /* general purpose functions ***************************************/ |
| 663 | /*********************************************************************/ |
| 664 | |
| 665 | void display_version() { |
| 666 | printf("HA-Proxy version " HAPROXY_VERSION " " HAPROXY_DATE"\n"); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 667 | printf("Copyright 2000-2002 Willy Tarreau <willy AT meta-x DOT org>\n\n"); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 668 | } |
| 669 | |
| 670 | /* |
| 671 | * This function prints the command line usage and exits |
| 672 | */ |
| 673 | void usage(char *name) { |
| 674 | display_version(); |
| 675 | fprintf(stderr, |
| 676 | "Usage : %s -f <cfgfile> [ -vd" |
| 677 | #if STATTIME > 0 |
| 678 | "sl" |
| 679 | #endif |
| 680 | "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n" |
| 681 | " -v displays version\n" |
| 682 | " -d enters debug mode\n" |
| 683 | #if STATTIME > 0 |
| 684 | " -s enables statistics output\n" |
| 685 | " -l enables long statistics format\n" |
| 686 | #endif |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 687 | " -D goes daemon ; implies -q\n" |
| 688 | " -q quiet mode : don't display messages\n" |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 689 | " -n sets the maximum total # of connections (%d)\n" |
| 690 | " -N sets the default, per-proxy maximum # of connections (%d)\n\n", |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 691 | name, DEFAULT_MAXCONN, cfg_maxpconn); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 692 | exit(1); |
| 693 | } |
| 694 | |
| 695 | |
| 696 | /* |
| 697 | * Displays the message on stderr with the date and pid. |
| 698 | */ |
| 699 | void Alert(char *fmt, ...) { |
| 700 | va_list argp; |
| 701 | struct timeval tv; |
| 702 | struct tm *tm; |
| 703 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 704 | if (!(global.mode & MODE_QUIET)) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 705 | va_start(argp, fmt); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 706 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 707 | gettimeofday(&tv, NULL); |
| 708 | tm=localtime(&tv.tv_sec); |
| 709 | fprintf(stderr, "[ALERT] %03d/%02d%02d%02d (%d) : ", |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 710 | tm->tm_yday, tm->tm_hour, tm->tm_min, tm->tm_sec, (int)getpid()); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 711 | vfprintf(stderr, fmt, argp); |
| 712 | fflush(stderr); |
| 713 | va_end(argp); |
| 714 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 715 | } |
| 716 | |
| 717 | |
| 718 | /* |
| 719 | * Displays the message on stderr with the date and pid. |
| 720 | */ |
| 721 | void Warning(char *fmt, ...) { |
| 722 | va_list argp; |
| 723 | struct timeval tv; |
| 724 | struct tm *tm; |
| 725 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 726 | if (!(global.mode & MODE_QUIET)) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 727 | va_start(argp, fmt); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 728 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 729 | gettimeofday(&tv, NULL); |
| 730 | tm=localtime(&tv.tv_sec); |
| 731 | fprintf(stderr, "[WARNING] %03d/%02d%02d%02d (%d) : ", |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 732 | tm->tm_yday, tm->tm_hour, tm->tm_min, tm->tm_sec, (int)getpid()); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 733 | vfprintf(stderr, fmt, argp); |
| 734 | fflush(stderr); |
| 735 | va_end(argp); |
| 736 | } |
| 737 | } |
| 738 | |
| 739 | /* |
| 740 | * Displays the message on <out> only if quiet mode is not set. |
| 741 | */ |
| 742 | void qfprintf(FILE *out, char *fmt, ...) { |
| 743 | va_list argp; |
| 744 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 745 | if (!(global.mode & MODE_QUIET)) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 746 | va_start(argp, fmt); |
| 747 | vfprintf(out, fmt, argp); |
| 748 | fflush(out); |
| 749 | va_end(argp); |
| 750 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 751 | } |
| 752 | |
| 753 | |
| 754 | /* |
| 755 | * converts <str> to a struct sockaddr_in* which is locally allocated. |
| 756 | * The format is "addr:port", where "addr" can be empty or "*" to indicate |
| 757 | * INADDR_ANY. |
| 758 | */ |
| 759 | struct sockaddr_in *str2sa(char *str) { |
| 760 | static struct sockaddr_in sa; |
| 761 | char *c; |
| 762 | int port; |
| 763 | |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 764 | memset(&sa, 0, sizeof(sa)); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 765 | str=strdup(str); |
| 766 | |
| 767 | if ((c=strrchr(str,':')) != NULL) { |
| 768 | *c++=0; |
| 769 | port=atol(c); |
| 770 | } |
| 771 | else |
| 772 | port=0; |
| 773 | |
| 774 | if (*str == '*' || *str == '\0') { /* INADDR_ANY */ |
| 775 | sa.sin_addr.s_addr = INADDR_ANY; |
| 776 | } |
| 777 | else if ( |
| 778 | #ifndef SOLARIS |
| 779 | !inet_aton(str, &sa.sin_addr) |
| 780 | #else |
| 781 | !inet_pton(AF_INET, str, &sa.sin_addr) |
| 782 | #endif |
| 783 | ) { |
| 784 | struct hostent *he; |
| 785 | |
| 786 | if ((he = gethostbyname(str)) == NULL) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 787 | Alert("Invalid server name: '%s'\n", str); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 788 | } |
| 789 | else |
| 790 | sa.sin_addr = *(struct in_addr *) *(he->h_addr_list); |
| 791 | } |
| 792 | sa.sin_port=htons(port); |
| 793 | sa.sin_family=AF_INET; |
| 794 | |
| 795 | free(str); |
| 796 | return &sa; |
| 797 | } |
| 798 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 799 | |
| 800 | /* |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 801 | * converts <str> to a list of listeners which are dynamically allocated. |
| 802 | * The format is "{addr|'*'}:port[-end][,{addr|'*'}:port[-end]]*", where : |
| 803 | * - <addr> can be empty or "*" to indicate INADDR_ANY ; |
| 804 | * - <port> is a numerical port from 1 to 65535 ; |
| 805 | * - <end> indicates to use the range from <port> to <end> instead (inclusive). |
| 806 | * This can be repeated as many times as necessary, separated by a coma. |
| 807 | * The <tail> argument is a pointer to a current list which should be appended |
| 808 | * to the tail of the new list. The pointer to the new list is returned. |
| 809 | */ |
| 810 | struct listener *str2listener(char *str, struct listener *tail) { |
| 811 | struct listener *l; |
| 812 | char *c, *next, *range, *dupstr; |
| 813 | int port, end; |
| 814 | |
| 815 | next = dupstr = strdup(str); |
| 816 | |
| 817 | while (next && *next) { |
| 818 | str = next; |
| 819 | /* 1) look for the end of the first address */ |
| 820 | if ((next = strrchr(str, ',')) != NULL) { |
| 821 | *next++ = 0; |
| 822 | } |
| 823 | |
| 824 | /* 2) look for the addr/port delimiter */ |
| 825 | if ((range = strrchr(str, ':')) != NULL) { |
| 826 | *range++ = 0; |
| 827 | } |
| 828 | else { |
| 829 | Alert("Missing port number: '%s'\n", str); |
| 830 | } |
| 831 | |
| 832 | /* 3) look for the port-end delimiter */ |
| 833 | if ((c = strchr(range, '-')) != NULL) { |
| 834 | *c++ = 0; |
| 835 | end = atol(c); |
| 836 | } |
| 837 | else { |
| 838 | end = atol(range); |
| 839 | } |
| 840 | |
| 841 | for (port = atol(range); port <= end; port++) { |
| 842 | l = (struct listener *)calloc(1, sizeof(struct listener)); |
| 843 | l->next = tail; |
| 844 | tail = l; |
| 845 | |
| 846 | if (*str == '*' || *str == '\0') { /* INADDR_ANY */ |
| 847 | l->addr.sin_addr.s_addr = INADDR_ANY; |
| 848 | } |
| 849 | else if ( |
| 850 | #ifndef SOLARIS |
| 851 | !inet_aton(str, &l->addr.sin_addr) |
| 852 | #else |
| 853 | !inet_pton(AF_INET, str, &l->addr.sin_addr) |
| 854 | #endif |
| 855 | ) { |
| 856 | struct hostent *he; |
| 857 | |
| 858 | if ((he = gethostbyname(str)) == NULL) { |
| 859 | Alert("Invalid server name: '%s'\n", str); |
| 860 | } |
| 861 | else |
| 862 | l->addr.sin_addr = *(struct in_addr *) *(he->h_addr_list); |
| 863 | } |
| 864 | l->addr.sin_port=htons(port); |
| 865 | l->addr.sin_family=AF_INET; |
| 866 | } /* end for(port) */ |
| 867 | } /* end while(next) */ |
| 868 | free(dupstr); |
| 869 | return tail; |
| 870 | } |
| 871 | |
| 872 | |
| 873 | /* |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 874 | * This function sends a syslog message to both log servers of a proxy, |
| 875 | * or to global log servers if the proxy is NULL. |
| 876 | * It also tries not to waste too much time computing the message header. |
| 877 | * It doesn't care about errors nor does it report them. |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 878 | */ |
| 879 | void send_log(struct proxy *p, int level, char *message, ...) { |
| 880 | static int logfd = -1; /* syslog UDP socket */ |
| 881 | static long tvsec = -1; /* to force the string to be initialized */ |
| 882 | struct timeval tv; |
| 883 | va_list argp; |
| 884 | static char logmsg[MAX_SYSLOG_LEN]; |
| 885 | static char *dataptr = NULL; |
| 886 | int fac_level; |
| 887 | int hdr_len, data_len; |
| 888 | struct sockaddr_in *sa[2]; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 889 | int facilities[2], loglevel[2]; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 890 | int nbloggers = 0; |
| 891 | char *log_ptr; |
| 892 | |
| 893 | if (logfd < 0) { |
| 894 | if ((logfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) |
| 895 | return; |
| 896 | } |
| 897 | |
| 898 | if (level < 0 || progname == NULL || message == NULL) |
| 899 | return; |
| 900 | |
| 901 | gettimeofday(&tv, NULL); |
willy tarreau | c29948c | 2005-12-17 13:10:27 +0100 | [diff] [blame] | 902 | if (tv.tv_sec != tvsec || dataptr == NULL) { |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 903 | /* this string is rebuild only once a second */ |
| 904 | struct tm *tm = localtime(&tv.tv_sec); |
| 905 | tvsec = tv.tv_sec; |
| 906 | |
willy tarreau | c29948c | 2005-12-17 13:10:27 +0100 | [diff] [blame] | 907 | hdr_len = snprintf(logmsg, sizeof(logmsg), |
| 908 | "<<<<>%s %2d %02d:%02d:%02d %s[%d]: ", |
| 909 | monthname[tm->tm_mon], |
| 910 | tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec, |
| 911 | progname, pid); |
| 912 | /* WARNING: depending upon implementations, snprintf may return |
| 913 | * either -1 or the number of bytes that would be needed to store |
| 914 | * the total message. In both cases, we must adjust it. |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 915 | */ |
willy tarreau | c29948c | 2005-12-17 13:10:27 +0100 | [diff] [blame] | 916 | if (hdr_len < 0 || hdr_len > sizeof(logmsg)) |
| 917 | hdr_len = sizeof(logmsg); |
| 918 | |
| 919 | dataptr = logmsg + hdr_len; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 920 | } |
| 921 | |
| 922 | va_start(argp, message); |
| 923 | data_len = vsnprintf(dataptr, logmsg + sizeof(logmsg) - dataptr, message, argp); |
willy tarreau | c29948c | 2005-12-17 13:10:27 +0100 | [diff] [blame] | 924 | if (data_len < 0 || data_len > (logmsg + sizeof(logmsg) - dataptr)) |
| 925 | data_len = logmsg + sizeof(logmsg) - dataptr; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 926 | va_end(argp); |
willy tarreau | c29948c | 2005-12-17 13:10:27 +0100 | [diff] [blame] | 927 | dataptr[data_len - 1] = '\n'; /* force a break on ultra-long lines */ |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 928 | |
| 929 | if (p == NULL) { |
| 930 | if (global.logfac1 >= 0) { |
| 931 | sa[nbloggers] = &global.logsrv1; |
| 932 | facilities[nbloggers] = global.logfac1; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 933 | loglevel[nbloggers] = global.loglev1; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 934 | nbloggers++; |
| 935 | } |
| 936 | if (global.logfac2 >= 0) { |
| 937 | sa[nbloggers] = &global.logsrv2; |
| 938 | facilities[nbloggers] = global.logfac2; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 939 | loglevel[nbloggers] = global.loglev2; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 940 | nbloggers++; |
| 941 | } |
| 942 | } else { |
| 943 | if (p->logfac1 >= 0) { |
| 944 | sa[nbloggers] = &p->logsrv1; |
| 945 | facilities[nbloggers] = p->logfac1; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 946 | loglevel[nbloggers] = p->loglev1; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 947 | nbloggers++; |
| 948 | } |
| 949 | if (p->logfac2 >= 0) { |
| 950 | sa[nbloggers] = &p->logsrv2; |
| 951 | facilities[nbloggers] = p->logfac2; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 952 | loglevel[nbloggers] = p->loglev2; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 953 | nbloggers++; |
| 954 | } |
| 955 | } |
| 956 | |
| 957 | while (nbloggers-- > 0) { |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 958 | /* we can filter the level of the messages that are sent to each logger */ |
| 959 | if (level > loglevel[nbloggers]) |
| 960 | continue; |
| 961 | |
willy tarreau | c29948c | 2005-12-17 13:10:27 +0100 | [diff] [blame] | 962 | /* For each target, we may have a different facility. |
| 963 | * We can also have a different log level for each message. |
| 964 | * This induces variations in the message header length. |
| 965 | * Since we don't want to recompute it each time, nor copy it every |
| 966 | * time, we only change the facility in the pre-computed header, |
| 967 | * and we change the pointer to the header accordingly. |
| 968 | */ |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 969 | fac_level = (facilities[nbloggers] << 3) + level; |
| 970 | log_ptr = logmsg + 3; /* last digit of the log level */ |
| 971 | do { |
| 972 | *log_ptr = '0' + fac_level % 10; |
| 973 | fac_level /= 10; |
| 974 | log_ptr--; |
| 975 | } while (fac_level && log_ptr > logmsg); |
| 976 | *log_ptr = '<'; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 977 | |
willy tarreau | c29948c | 2005-12-17 13:10:27 +0100 | [diff] [blame] | 978 | /* the total syslog message now starts at logptr, for dataptr+data_len-logptr */ |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 979 | |
| 980 | #ifndef MSG_NOSIGNAL |
willy tarreau | c29948c | 2005-12-17 13:10:27 +0100 | [diff] [blame] | 981 | sendto(logfd, log_ptr, dataptr + data_len - log_ptr, MSG_DONTWAIT, |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 982 | (struct sockaddr *)sa[nbloggers], sizeof(**sa)); |
| 983 | #else |
willy tarreau | c29948c | 2005-12-17 13:10:27 +0100 | [diff] [blame] | 984 | sendto(logfd, log_ptr, dataptr + data_len - log_ptr, MSG_DONTWAIT | MSG_NOSIGNAL, |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 985 | (struct sockaddr *)sa[nbloggers], sizeof(**sa)); |
| 986 | #endif |
| 987 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 988 | } |
| 989 | |
| 990 | |
| 991 | /* sets <tv> to the current time */ |
| 992 | static inline struct timeval *tv_now(struct timeval *tv) { |
| 993 | if (tv) |
| 994 | gettimeofday(tv, NULL); |
| 995 | return tv; |
| 996 | } |
| 997 | |
| 998 | /* |
| 999 | * adds <ms> ms to <from>, set the result to <tv> and returns a pointer <tv> |
| 1000 | */ |
| 1001 | static inline struct timeval *tv_delayfrom(struct timeval *tv, struct timeval *from, int ms) { |
| 1002 | if (!tv || !from) |
| 1003 | return NULL; |
| 1004 | tv->tv_usec = from->tv_usec + (ms%1000)*1000; |
| 1005 | tv->tv_sec = from->tv_sec + (ms/1000); |
| 1006 | while (tv->tv_usec >= 1000000) { |
| 1007 | tv->tv_usec -= 1000000; |
| 1008 | tv->tv_sec++; |
| 1009 | } |
| 1010 | return tv; |
| 1011 | } |
| 1012 | |
| 1013 | /* |
| 1014 | * compares <tv1> and <tv2> : returns 0 if equal, -1 if tv1 < tv2, 1 if tv1 > tv2 |
| 1015 | */ |
| 1016 | static inline int tv_cmp(struct timeval *tv1, struct timeval *tv2) { |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1017 | if (tv1->tv_sec < tv2->tv_sec) |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1018 | return -1; |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1019 | else if (tv1->tv_sec > tv2->tv_sec) |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1020 | return 1; |
| 1021 | else if (tv1->tv_usec < tv2->tv_usec) |
| 1022 | return -1; |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1023 | else if (tv1->tv_usec > tv2->tv_usec) |
| 1024 | return 1; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1025 | else |
| 1026 | return 0; |
| 1027 | } |
| 1028 | |
| 1029 | /* |
| 1030 | * returns the absolute difference, in ms, between tv1 and tv2 |
| 1031 | */ |
| 1032 | unsigned long tv_delta(struct timeval *tv1, struct timeval *tv2) { |
| 1033 | int cmp; |
| 1034 | unsigned long ret; |
| 1035 | |
| 1036 | |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1037 | cmp = tv_cmp(tv1, tv2); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1038 | if (!cmp) |
| 1039 | return 0; /* same dates, null diff */ |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1040 | else if (cmp < 0) { |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1041 | struct timeval *tmp = tv1; |
| 1042 | tv1 = tv2; |
| 1043 | tv2 = tmp; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1044 | } |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1045 | ret = (tv1->tv_sec - tv2->tv_sec) * 1000; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1046 | if (tv1->tv_usec > tv2->tv_usec) |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1047 | ret += (tv1->tv_usec - tv2->tv_usec) / 1000; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1048 | else |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1049 | ret -= (tv2->tv_usec - tv1->tv_usec) / 1000; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1050 | return (unsigned long) ret; |
| 1051 | } |
| 1052 | |
| 1053 | /* |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1054 | * returns the difference, in ms, between tv1 and tv2 |
| 1055 | */ |
| 1056 | static inline unsigned long tv_diff(struct timeval *tv1, struct timeval *tv2) { |
| 1057 | unsigned long ret; |
| 1058 | |
willy tarreau | 6e682ce | 2005-12-17 13:26:49 +0100 | [diff] [blame] | 1059 | ret = (tv2->tv_sec - tv1->tv_sec) * 1000; |
| 1060 | if (tv2->tv_usec > tv1->tv_usec) |
| 1061 | ret += (tv2->tv_usec - tv1->tv_usec) / 1000; |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1062 | else |
willy tarreau | 6e682ce | 2005-12-17 13:26:49 +0100 | [diff] [blame] | 1063 | ret -= (tv1->tv_usec - tv2->tv_usec) / 1000; |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1064 | return (unsigned long) ret; |
| 1065 | } |
| 1066 | |
| 1067 | /* |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1068 | * compares <tv1> and <tv2> modulo 1ms: returns 0 if equal, -1 if tv1 < tv2, 1 if tv1 > tv2 |
| 1069 | */ |
| 1070 | static inline int tv_cmp_ms(struct timeval *tv1, struct timeval *tv2) { |
willy tarreau | efae184 | 2005-12-17 12:51:03 +0100 | [diff] [blame] | 1071 | if (tv1->tv_sec == tv2->tv_sec) { |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1072 | if (tv2->tv_usec > tv1->tv_usec + 1000) |
willy tarreau | efae184 | 2005-12-17 12:51:03 +0100 | [diff] [blame] | 1073 | return -1; |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1074 | else if (tv1->tv_usec > tv2->tv_usec + 1000) |
| 1075 | return 1; |
willy tarreau | efae184 | 2005-12-17 12:51:03 +0100 | [diff] [blame] | 1076 | else |
| 1077 | return 0; |
| 1078 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1079 | else if ((tv2->tv_sec > tv1->tv_sec + 1) || |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1080 | ((tv2->tv_sec == tv1->tv_sec + 1) && (tv2->tv_usec + 1000000 > tv1->tv_usec + 1000))) |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1081 | return -1; |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1082 | else if ((tv1->tv_sec > tv2->tv_sec + 1) || |
| 1083 | ((tv1->tv_sec == tv2->tv_sec + 1) && (tv1->tv_usec + 1000000 > tv2->tv_usec + 1000))) |
| 1084 | return 1; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1085 | else |
| 1086 | return 0; |
| 1087 | } |
| 1088 | |
| 1089 | /* |
| 1090 | * returns the remaining time between tv1=now and event=tv2 |
| 1091 | * if tv2 is passed, 0 is returned. |
| 1092 | */ |
| 1093 | static inline unsigned long tv_remain(struct timeval *tv1, struct timeval *tv2) { |
| 1094 | unsigned long ret; |
| 1095 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1096 | if (tv_cmp_ms(tv1, tv2) >= 0) |
| 1097 | return 0; /* event elapsed */ |
| 1098 | |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1099 | ret = (tv2->tv_sec - tv1->tv_sec) * 1000; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1100 | if (tv2->tv_usec > tv1->tv_usec) |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1101 | ret += (tv2->tv_usec - tv1->tv_usec) / 1000; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1102 | else |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1103 | ret -= (tv1->tv_usec - tv2->tv_usec) / 1000; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1104 | return (unsigned long) ret; |
| 1105 | } |
| 1106 | |
| 1107 | |
| 1108 | /* |
| 1109 | * zeroes a struct timeval |
| 1110 | */ |
| 1111 | |
| 1112 | static inline struct timeval *tv_eternity(struct timeval *tv) { |
| 1113 | tv->tv_sec = tv->tv_usec = 0; |
| 1114 | return tv; |
| 1115 | } |
| 1116 | |
| 1117 | /* |
| 1118 | * returns 1 if tv is null, else 0 |
| 1119 | */ |
| 1120 | static inline int tv_iseternity(struct timeval *tv) { |
| 1121 | if (tv->tv_sec == 0 && tv->tv_usec == 0) |
| 1122 | return 1; |
| 1123 | else |
| 1124 | return 0; |
| 1125 | } |
| 1126 | |
| 1127 | /* |
| 1128 | * compares <tv1> and <tv2> : returns 0 if equal, -1 if tv1 < tv2, 1 if tv1 > tv2, |
| 1129 | * considering that 0 is the eternity. |
| 1130 | */ |
| 1131 | static inline int tv_cmp2(struct timeval *tv1, struct timeval *tv2) { |
| 1132 | if (tv_iseternity(tv1)) |
| 1133 | if (tv_iseternity(tv2)) |
| 1134 | return 0; /* same */ |
| 1135 | else |
| 1136 | return 1; /* tv1 later than tv2 */ |
| 1137 | else if (tv_iseternity(tv2)) |
| 1138 | return -1; /* tv2 later than tv1 */ |
| 1139 | |
| 1140 | if (tv1->tv_sec > tv2->tv_sec) |
| 1141 | return 1; |
| 1142 | else if (tv1->tv_sec < tv2->tv_sec) |
| 1143 | return -1; |
| 1144 | else if (tv1->tv_usec > tv2->tv_usec) |
| 1145 | return 1; |
| 1146 | else if (tv1->tv_usec < tv2->tv_usec) |
| 1147 | return -1; |
| 1148 | else |
| 1149 | return 0; |
| 1150 | } |
| 1151 | |
| 1152 | /* |
| 1153 | * compares <tv1> and <tv2> modulo 1 ms: returns 0 if equal, -1 if tv1 < tv2, 1 if tv1 > tv2, |
| 1154 | * considering that 0 is the eternity. |
| 1155 | */ |
| 1156 | static inline int tv_cmp2_ms(struct timeval *tv1, struct timeval *tv2) { |
| 1157 | if (tv_iseternity(tv1)) |
| 1158 | if (tv_iseternity(tv2)) |
| 1159 | return 0; /* same */ |
| 1160 | else |
| 1161 | return 1; /* tv1 later than tv2 */ |
| 1162 | else if (tv_iseternity(tv2)) |
| 1163 | return -1; /* tv2 later than tv1 */ |
| 1164 | |
willy tarreau | efae184 | 2005-12-17 12:51:03 +0100 | [diff] [blame] | 1165 | if (tv1->tv_sec == tv2->tv_sec) { |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1166 | if (tv1->tv_usec > tv2->tv_usec + 1000) |
willy tarreau | efae184 | 2005-12-17 12:51:03 +0100 | [diff] [blame] | 1167 | return 1; |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1168 | else if (tv2->tv_usec > tv1->tv_usec + 1000) |
willy tarreau | efae184 | 2005-12-17 12:51:03 +0100 | [diff] [blame] | 1169 | return -1; |
| 1170 | else |
| 1171 | return 0; |
| 1172 | } |
| 1173 | else if ((tv1->tv_sec > tv2->tv_sec + 1) || |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1174 | ((tv1->tv_sec == tv2->tv_sec + 1) && (tv1->tv_usec + 1000000 > tv2->tv_usec + 1000))) |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1175 | return 1; |
| 1176 | else if ((tv2->tv_sec > tv1->tv_sec + 1) || |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1177 | ((tv2->tv_sec == tv1->tv_sec + 1) && (tv2->tv_usec + 1000000 > tv1->tv_usec + 1000))) |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1178 | return -1; |
| 1179 | else |
| 1180 | return 0; |
| 1181 | } |
| 1182 | |
| 1183 | /* |
| 1184 | * returns the first event between tv1 and tv2 into tvmin. |
| 1185 | * a zero tv is ignored. tvmin is returned. |
| 1186 | */ |
| 1187 | static inline struct timeval *tv_min(struct timeval *tvmin, |
| 1188 | struct timeval *tv1, struct timeval *tv2) { |
| 1189 | |
| 1190 | if (tv_cmp2(tv1, tv2) <= 0) |
| 1191 | *tvmin = *tv1; |
| 1192 | else |
| 1193 | *tvmin = *tv2; |
| 1194 | |
| 1195 | return tvmin; |
| 1196 | } |
| 1197 | |
| 1198 | |
| 1199 | |
| 1200 | /***********************************************************/ |
| 1201 | /* fd management ***************************************/ |
| 1202 | /***********************************************************/ |
| 1203 | |
| 1204 | |
| 1205 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1206 | /* Deletes an FD from the fdsets, and recomputes the maxfd limit. |
| 1207 | * The file descriptor is also closed. |
| 1208 | */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1209 | static inline void fd_delete(int fd) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1210 | FD_CLR(fd, StaticReadEvent); |
| 1211 | FD_CLR(fd, StaticWriteEvent); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1212 | close(fd); |
| 1213 | fdtab[fd].state = FD_STCLOSE; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1214 | |
| 1215 | while ((maxfd-1 >= 0) && (fdtab[maxfd-1].state == FD_STCLOSE)) |
| 1216 | maxfd--; |
| 1217 | } |
| 1218 | |
| 1219 | /* recomputes the maxfd limit from the fd */ |
| 1220 | static inline void fd_insert(int fd) { |
| 1221 | if (fd+1 > maxfd) |
| 1222 | maxfd = fd+1; |
| 1223 | } |
| 1224 | |
| 1225 | /*************************************************************/ |
| 1226 | /* task management ***************************************/ |
| 1227 | /*************************************************************/ |
| 1228 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1229 | /* puts the task <t> in run queue <q>, and returns <t> */ |
| 1230 | static inline struct task *task_wakeup(struct task **q, struct task *t) { |
| 1231 | if (t->state == TASK_RUNNING) |
| 1232 | return t; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1233 | else { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1234 | t->rqnext = *q; |
| 1235 | t->state = TASK_RUNNING; |
| 1236 | return *q = t; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1237 | } |
| 1238 | } |
| 1239 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1240 | /* removes the task <t> from the queue <q> |
| 1241 | * <s> MUST be <q>'s first task. |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1242 | * set the run queue to point to the next one, and return it |
| 1243 | */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1244 | static inline struct task *task_sleep(struct task **q, struct task *t) { |
| 1245 | if (t->state == TASK_RUNNING) { |
| 1246 | *q = t->rqnext; |
| 1247 | t->state = TASK_IDLE; /* tell that s has left the run queue */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1248 | } |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1249 | return *q; /* return next running task */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1250 | } |
| 1251 | |
| 1252 | /* |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1253 | * removes the task <t> from its wait queue. It must have already been removed |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1254 | * from the run queue. A pointer to the task itself is returned. |
| 1255 | */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1256 | static inline struct task *task_delete(struct task *t) { |
| 1257 | t->prev->next = t->next; |
| 1258 | t->next->prev = t->prev; |
| 1259 | return t; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1260 | } |
| 1261 | |
| 1262 | /* |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1263 | * frees a task. Its context must have been freed since it will be lost. |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1264 | */ |
| 1265 | static inline void task_free(struct task *t) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1266 | pool_free(task, t); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1267 | } |
| 1268 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1269 | /* inserts <task> into its assigned wait queue, where it may already be. In this case, it |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1270 | * may be only moved or left where it was, depending on its timing requirements. |
| 1271 | * <task> is returned. |
| 1272 | */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1273 | struct task *task_queue(struct task *task) { |
| 1274 | struct task *list = task->wq; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1275 | struct task *start_from; |
| 1276 | |
| 1277 | /* first, test if the task was already in a list */ |
| 1278 | if (task->prev == NULL) { |
| 1279 | // start_from = list; |
| 1280 | start_from = list->prev; |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1281 | #if STATTIME > 0 |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1282 | stats_tsk_new++; |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1283 | #endif |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1284 | /* insert the unlinked <task> into the list, searching back from the last entry */ |
| 1285 | while (start_from != list && tv_cmp2(&task->expire, &start_from->expire) < 0) { |
| 1286 | start_from = start_from->prev; |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1287 | #if STATTIME > 0 |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1288 | stats_tsk_nsrch++; |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1289 | #endif |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1290 | } |
| 1291 | |
| 1292 | // while (start_from->next != list && tv_cmp2(&task->expire, &start_from->next->expire) > 0) { |
| 1293 | // start_from = start_from->next; |
| 1294 | // stats_tsk_nsrch++; |
| 1295 | // } |
| 1296 | } |
| 1297 | else if (task->prev == list || |
| 1298 | tv_cmp2(&task->expire, &task->prev->expire) >= 0) { /* walk right */ |
| 1299 | start_from = task->next; |
| 1300 | if (start_from == list || tv_cmp2(&task->expire, &start_from->expire) <= 0) { |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1301 | #if STATTIME > 0 |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1302 | stats_tsk_good++; |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1303 | #endif |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1304 | return task; /* it's already in the right place */ |
| 1305 | } |
| 1306 | |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1307 | #if STATTIME > 0 |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1308 | stats_tsk_right++; |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1309 | #endif |
| 1310 | |
| 1311 | /* if the task is not at the right place, there's little chance that |
| 1312 | * it has only shifted a bit, and it will nearly always be queued |
| 1313 | * at the end of the list because of constant timeouts |
| 1314 | * (observed in real case). |
| 1315 | */ |
| 1316 | #ifndef WE_REALLY_THINK_THAT_THIS_TASK_MAY_HAVE_SHIFTED |
| 1317 | start_from = list->prev; /* assume we'll queue to the end of the list */ |
| 1318 | while (start_from != list && tv_cmp2(&task->expire, &start_from->expire) < 0) { |
| 1319 | start_from = start_from->prev; |
| 1320 | #if STATTIME > 0 |
| 1321 | stats_tsk_lsrch++; |
| 1322 | #endif |
| 1323 | } |
| 1324 | #else /* WE_REALLY_... */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1325 | /* insert the unlinked <task> into the list, searching after position <start_from> */ |
| 1326 | while (start_from->next != list && tv_cmp2(&task->expire, &start_from->next->expire) > 0) { |
| 1327 | start_from = start_from->next; |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1328 | #if STATTIME > 0 |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1329 | stats_tsk_rsrch++; |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1330 | #endif |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1331 | } |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1332 | #endif /* WE_REALLY_... */ |
| 1333 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1334 | /* we need to unlink it now */ |
| 1335 | task_delete(task); |
| 1336 | } |
| 1337 | else { /* walk left. */ |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1338 | #if STATTIME > 0 |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1339 | stats_tsk_left++; |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1340 | #endif |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1341 | #ifdef LEFT_TO_TOP /* not very good */ |
| 1342 | start_from = list; |
| 1343 | while (start_from->next != list && tv_cmp2(&task->expire, &start_from->next->expire) > 0) { |
| 1344 | start_from = start_from->next; |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1345 | #if STATTIME > 0 |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1346 | stats_tsk_lsrch++; |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1347 | #endif |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1348 | } |
| 1349 | #else |
| 1350 | start_from = task->prev->prev; /* valid because of the previous test above */ |
| 1351 | while (start_from != list && tv_cmp2(&task->expire, &start_from->expire) < 0) { |
| 1352 | start_from = start_from->prev; |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1353 | #if STATTIME > 0 |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1354 | stats_tsk_lsrch++; |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 1355 | #endif |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1356 | } |
| 1357 | #endif |
| 1358 | /* we need to unlink it now */ |
| 1359 | task_delete(task); |
| 1360 | } |
| 1361 | task->prev = start_from; |
| 1362 | task->next = start_from->next; |
| 1363 | task->next->prev = task; |
| 1364 | start_from->next = task; |
| 1365 | return task; |
| 1366 | } |
| 1367 | |
| 1368 | |
| 1369 | /*********************************************************************/ |
| 1370 | /* more specific functions ***************************************/ |
| 1371 | /*********************************************************************/ |
| 1372 | |
| 1373 | /* some prototypes */ |
| 1374 | static int maintain_proxies(void); |
| 1375 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1376 | /* this either returns the sockname or the original destination address. Code |
| 1377 | * inspired from Patrick Schaaf's example of nf_getsockname() implementation. |
| 1378 | */ |
| 1379 | static int get_original_dst(int fd, struct sockaddr_in *sa, int *salen) { |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 1380 | #if defined(TPROXY) && defined(SO_ORIGINAL_DST) |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1381 | return getsockopt(fd, SOL_IP, SO_ORIGINAL_DST, (void *)sa, salen); |
| 1382 | #else |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 1383 | #if defined(TPROXY) && defined(USE_GETSOCKNAME) |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1384 | return getsockname(fd, (struct sockaddr *)sa, salen); |
| 1385 | #else |
| 1386 | return -1; |
| 1387 | #endif |
| 1388 | #endif |
| 1389 | } |
| 1390 | |
| 1391 | /* |
| 1392 | * frees the context associated to a session. It must have been removed first. |
| 1393 | */ |
| 1394 | static inline void session_free(struct session *s) { |
| 1395 | if (s->req) |
| 1396 | pool_free(buffer, s->req); |
| 1397 | if (s->rep) |
| 1398 | pool_free(buffer, s->rep); |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 1399 | if (s->logs.uri) |
| 1400 | pool_free(requri, s->logs.uri); |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 1401 | if (s->logs.cli_cookie) |
| 1402 | pool_free(capture, s->logs.cli_cookie); |
| 1403 | if (s->logs.srv_cookie) |
| 1404 | pool_free(capture, s->logs.srv_cookie); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 1405 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1406 | pool_free(session, s); |
| 1407 | } |
| 1408 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1409 | |
| 1410 | /* |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 1411 | * This function tries to find a running server for the proxy <px>. A first |
| 1412 | * pass looks for active servers, and if none is found, a second pass also |
| 1413 | * looks for backup servers. |
| 1414 | * If no valid server is found, NULL is returned and px->cursrv is left undefined. |
| 1415 | */ |
| 1416 | static inline struct server *find_server(struct proxy *px) { |
| 1417 | struct server *srv = px->cursrv; |
| 1418 | int ignore_backup = 1; |
| 1419 | |
| 1420 | do { |
| 1421 | do { |
| 1422 | if (srv == NULL) |
| 1423 | srv = px->srv; |
| 1424 | if (srv->state & SRV_RUNNING |
| 1425 | && !((srv->state & SRV_BACKUP) && ignore_backup)) |
| 1426 | return srv; |
| 1427 | srv = srv->next; |
| 1428 | } while (srv != px->cursrv); |
| 1429 | } while (ignore_backup--); |
| 1430 | return NULL; |
| 1431 | } |
| 1432 | |
| 1433 | /* |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1434 | * This function initiates a connection to the current server (s->srv) if (s->direct) |
| 1435 | * is set, or to the dispatch server if (s->direct) is 0. It returns 0 if |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1436 | * it's OK, -1 if it's impossible. |
| 1437 | */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1438 | int connect_server(struct session *s) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1439 | int one = 1; |
| 1440 | int fd; |
| 1441 | |
| 1442 | // fprintf(stderr,"connect_server : s=%p\n",s); |
| 1443 | |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 1444 | if (s->flags & SN_DIRECT) { /* srv cannot be null */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1445 | s->srv_addr = s->srv->addr; |
| 1446 | } |
| 1447 | else if (s->proxy->options & PR_O_BALANCE) { |
| 1448 | if (s->proxy->options & PR_O_BALANCE_RR) { |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 1449 | struct server *srv; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1450 | |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 1451 | srv = find_server(s->proxy); |
| 1452 | |
| 1453 | if (srv == NULL) /* no server left */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1454 | return -1; |
| 1455 | |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 1456 | s->srv_addr = srv->addr; |
| 1457 | s->srv = srv; |
| 1458 | s->proxy->cursrv = srv->next; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1459 | } |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1460 | else /* unknown balancing algorithm */ |
| 1461 | return -1; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1462 | } |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 1463 | else if (*(int *)&s->proxy->dispatch_addr.sin_addr) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1464 | /* connect to the defined dispatch addr */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1465 | s->srv_addr = s->proxy->dispatch_addr; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1466 | } |
| 1467 | else if (s->proxy->options & PR_O_TRANSP) { |
| 1468 | /* in transparent mode, use the original dest addr if no dispatch specified */ |
| 1469 | int salen = sizeof(struct sockaddr_in); |
| 1470 | if (get_original_dst(s->cli_fd, &s->srv_addr, &salen) == -1) { |
| 1471 | qfprintf(stderr, "Cannot get original server address.\n"); |
| 1472 | return -1; |
| 1473 | } |
| 1474 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1475 | |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 1476 | /* if this server remaps proxied ports, we'll use |
| 1477 | * the port the client connected to with an offset. */ |
willy tarreau | eedaa9f | 2005-12-17 14:08:03 +0100 | [diff] [blame^] | 1478 | if (s->srv != NULL && s->srv->state & SRV_MAPPORTS) { |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 1479 | struct sockaddr_in sockname; |
| 1480 | int namelen; |
| 1481 | |
| 1482 | namelen = sizeof(sockname); |
| 1483 | if (get_original_dst(s->cli_fd, (struct sockaddr_in *)&sockname, &namelen) == -1) |
| 1484 | getsockname(s->cli_fd, (struct sockaddr *)&sockname, &namelen); |
| 1485 | s->srv_addr.sin_port = htons(ntohs(s->srv_addr.sin_port) + ntohs(sockname.sin_port)); |
| 1486 | } |
| 1487 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1488 | if ((fd = s->srv_fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1489 | qfprintf(stderr, "Cannot get a server socket.\n"); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1490 | return -1; |
| 1491 | } |
| 1492 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 1493 | if (fd >= global.maxsock) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1494 | Alert("socket(): not enough free sockets. Raise -n argument. Giving up.\n"); |
| 1495 | close(fd); |
| 1496 | return -1; |
| 1497 | } |
| 1498 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1499 | if ((fcntl(fd, F_SETFL, O_NONBLOCK)==-1) || |
| 1500 | (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *) &one, sizeof(one)) == -1)) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1501 | qfprintf(stderr,"Cannot set client socket to non blocking mode.\n"); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1502 | close(fd); |
| 1503 | return -1; |
| 1504 | } |
| 1505 | |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 1506 | /* allow specific binding */ |
| 1507 | if (s->proxy->options & PR_O_BIND_SRC && |
| 1508 | bind(fd, (struct sockaddr *)&s->proxy->source_addr, sizeof(s->proxy->source_addr)) == -1) { |
| 1509 | Alert("Cannot bind to source address before connect() for proxy %s. Aborting.\n", s->proxy->id); |
| 1510 | close(fd); |
| 1511 | return -1; |
| 1512 | } |
| 1513 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1514 | if ((connect(fd, (struct sockaddr *)&s->srv_addr, sizeof(s->srv_addr)) == -1) && (errno != EINPROGRESS)) { |
| 1515 | if (errno == EAGAIN) { /* no free ports left, try again later */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1516 | qfprintf(stderr,"Cannot connect, no free ports.\n"); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1517 | close(fd); |
| 1518 | return -1; |
| 1519 | } |
| 1520 | else if (errno != EALREADY && errno != EISCONN) { |
| 1521 | close(fd); |
| 1522 | return -1; |
| 1523 | } |
| 1524 | } |
| 1525 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1526 | fdtab[fd].owner = s->task; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1527 | fdtab[fd].read = &event_srv_read; |
| 1528 | fdtab[fd].write = &event_srv_write; |
| 1529 | fdtab[fd].state = FD_STCONN; /* connection in progress */ |
| 1530 | |
| 1531 | FD_SET(fd, StaticWriteEvent); /* for connect status */ |
| 1532 | |
| 1533 | fd_insert(fd); |
| 1534 | |
| 1535 | if (s->proxy->contimeout) |
| 1536 | tv_delayfrom(&s->cnexpire, &now, s->proxy->contimeout); |
| 1537 | else |
| 1538 | tv_eternity(&s->cnexpire); |
| 1539 | return 0; |
| 1540 | } |
| 1541 | |
| 1542 | /* |
| 1543 | * this function is called on a read event from a client socket. |
| 1544 | * It returns 0. |
| 1545 | */ |
| 1546 | int event_cli_read(int fd) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1547 | struct task *t = fdtab[fd].owner; |
| 1548 | struct session *s = t->context; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1549 | struct buffer *b = s->req; |
| 1550 | int ret, max; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1551 | |
| 1552 | // fprintf(stderr,"event_cli_read : fd=%d, s=%p\n", fd, s); |
| 1553 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1554 | if (fdtab[fd].state != FD_STERROR) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1555 | while (1) { |
| 1556 | if (b->l == 0) { /* let's realign the buffer to optimize I/O */ |
| 1557 | b->r = b->w = b->h = b->lr = b->data; |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1558 | max = b->rlim - b->data; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1559 | } |
| 1560 | else if (b->r > b->w) { |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1561 | max = b->rlim - b->r; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1562 | } |
| 1563 | else { |
| 1564 | max = b->w - b->r; |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1565 | /* FIXME: theorically, if w>0, we shouldn't have rlim < data+size anymore |
| 1566 | * since it means that the rewrite protection has been removed. This |
| 1567 | * implies that the if statement can be removed. |
| 1568 | */ |
| 1569 | if (max > b->rlim - b->data) |
| 1570 | max = b->rlim - b->data; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1571 | } |
| 1572 | |
| 1573 | if (max == 0) { /* not anymore room to store data */ |
| 1574 | FD_CLR(fd, StaticReadEvent); |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1575 | break; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1576 | } |
| 1577 | |
willy tarreau | 3242e86 | 2005-12-17 12:27:53 +0100 | [diff] [blame] | 1578 | #ifndef MSG_NOSIGNAL |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1579 | { |
| 1580 | int skerr, lskerr; |
| 1581 | |
| 1582 | lskerr = sizeof(skerr); |
| 1583 | getsockopt(fd, SOL_SOCKET, SO_ERROR, &skerr, &lskerr); |
| 1584 | if (skerr) |
| 1585 | ret = -1; |
| 1586 | else |
| 1587 | ret = recv(fd, b->r, max, 0); |
| 1588 | } |
willy tarreau | 3242e86 | 2005-12-17 12:27:53 +0100 | [diff] [blame] | 1589 | #else |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1590 | ret = recv(fd, b->r, max, MSG_NOSIGNAL); |
willy tarreau | 3242e86 | 2005-12-17 12:27:53 +0100 | [diff] [blame] | 1591 | #endif |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1592 | if (ret > 0) { |
| 1593 | b->r += ret; |
| 1594 | b->l += ret; |
| 1595 | s->res_cr = RES_DATA; |
| 1596 | |
| 1597 | if (b->r == b->data + BUFSIZE) { |
| 1598 | b->r = b->data; /* wrap around the buffer */ |
| 1599 | } |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 1600 | |
| 1601 | b->total += ret; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1602 | /* we hope to read more data or to get a close on next round */ |
| 1603 | continue; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1604 | } |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1605 | else if (ret == 0) { |
| 1606 | s->res_cr = RES_NULL; |
| 1607 | break; |
| 1608 | } |
| 1609 | else if (errno == EAGAIN) {/* ignore EAGAIN */ |
| 1610 | break; |
| 1611 | } |
| 1612 | else { |
| 1613 | s->res_cr = RES_ERROR; |
| 1614 | fdtab[fd].state = FD_STERROR; |
| 1615 | break; |
| 1616 | } |
| 1617 | } /* while(1) */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1618 | } |
| 1619 | else { |
| 1620 | s->res_cr = RES_ERROR; |
| 1621 | fdtab[fd].state = FD_STERROR; |
| 1622 | } |
| 1623 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1624 | if (s->res_cr != RES_SILENT) { |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 1625 | if (s->proxy->clitimeout && FD_ISSET(fd, StaticReadEvent)) |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1626 | tv_delayfrom(&s->crexpire, &now, s->proxy->clitimeout); |
| 1627 | else |
| 1628 | tv_eternity(&s->crexpire); |
| 1629 | |
| 1630 | task_wakeup(&rq, t); |
| 1631 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1632 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1633 | return 0; |
| 1634 | } |
| 1635 | |
| 1636 | |
| 1637 | /* |
| 1638 | * this function is called on a read event from a server socket. |
| 1639 | * It returns 0. |
| 1640 | */ |
| 1641 | int event_srv_read(int fd) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1642 | struct task *t = fdtab[fd].owner; |
| 1643 | struct session *s = t->context; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1644 | struct buffer *b = s->rep; |
| 1645 | int ret, max; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1646 | |
| 1647 | // fprintf(stderr,"event_srv_read : fd=%d, s=%p\n", fd, s); |
| 1648 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1649 | if (fdtab[fd].state != FD_STERROR) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1650 | while (1) { |
| 1651 | if (b->l == 0) { /* let's realign the buffer to optimize I/O */ |
| 1652 | b->r = b->w = b->h = b->lr = b->data; |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1653 | max = b->rlim - b->data; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1654 | } |
| 1655 | else if (b->r > b->w) { |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1656 | max = b->rlim - b->r; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1657 | } |
| 1658 | else { |
| 1659 | max = b->w - b->r; |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1660 | /* FIXME: theorically, if w>0, we shouldn't have rlim < data+size anymore |
| 1661 | * since it means that the rewrite protection has been removed. This |
| 1662 | * implies that the if statement can be removed. |
| 1663 | */ |
| 1664 | if (max > b->rlim - b->data) |
| 1665 | max = b->rlim - b->data; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1666 | } |
| 1667 | |
| 1668 | if (max == 0) { /* not anymore room to store data */ |
| 1669 | FD_CLR(fd, StaticReadEvent); |
| 1670 | break; |
| 1671 | } |
| 1672 | |
willy tarreau | 3242e86 | 2005-12-17 12:27:53 +0100 | [diff] [blame] | 1673 | #ifndef MSG_NOSIGNAL |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1674 | { |
| 1675 | int skerr, lskerr; |
| 1676 | |
| 1677 | lskerr = sizeof(skerr); |
| 1678 | getsockopt(fd, SOL_SOCKET, SO_ERROR, &skerr, &lskerr); |
| 1679 | if (skerr) |
| 1680 | ret = -1; |
| 1681 | else |
| 1682 | ret = recv(fd, b->r, max, 0); |
| 1683 | } |
willy tarreau | 3242e86 | 2005-12-17 12:27:53 +0100 | [diff] [blame] | 1684 | #else |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1685 | ret = recv(fd, b->r, max, MSG_NOSIGNAL); |
willy tarreau | 3242e86 | 2005-12-17 12:27:53 +0100 | [diff] [blame] | 1686 | #endif |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1687 | if (ret > 0) { |
| 1688 | b->r += ret; |
| 1689 | b->l += ret; |
| 1690 | s->res_sr = RES_DATA; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1691 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1692 | if (b->r == b->data + BUFSIZE) { |
| 1693 | b->r = b->data; /* wrap around the buffer */ |
| 1694 | } |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 1695 | |
| 1696 | b->total += ret; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1697 | /* we hope to read more data or to get a close on next round */ |
| 1698 | continue; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1699 | } |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1700 | else if (ret == 0) { |
| 1701 | s->res_sr = RES_NULL; |
| 1702 | break; |
| 1703 | } |
| 1704 | else if (errno == EAGAIN) {/* ignore EAGAIN */ |
| 1705 | break; |
| 1706 | } |
| 1707 | else { |
| 1708 | s->res_sr = RES_ERROR; |
| 1709 | fdtab[fd].state = FD_STERROR; |
| 1710 | break; |
| 1711 | } |
| 1712 | } /* while(1) */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1713 | } |
| 1714 | else { |
| 1715 | s->res_sr = RES_ERROR; |
| 1716 | fdtab[fd].state = FD_STERROR; |
| 1717 | } |
| 1718 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1719 | if (s->res_sr != RES_SILENT) { |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 1720 | if (s->proxy->srvtimeout && FD_ISSET(fd, StaticReadEvent)) |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1721 | tv_delayfrom(&s->srexpire, &now, s->proxy->srvtimeout); |
| 1722 | else |
| 1723 | tv_eternity(&s->srexpire); |
| 1724 | |
| 1725 | task_wakeup(&rq, t); |
| 1726 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1727 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1728 | return 0; |
| 1729 | } |
| 1730 | |
| 1731 | /* |
| 1732 | * this function is called on a write event from a client socket. |
| 1733 | * It returns 0. |
| 1734 | */ |
| 1735 | int event_cli_write(int fd) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1736 | struct task *t = fdtab[fd].owner; |
| 1737 | struct session *s = t->context; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1738 | struct buffer *b = s->rep; |
| 1739 | int ret, max; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1740 | |
| 1741 | // fprintf(stderr,"event_cli_write : fd=%d, s=%p\n", fd, s); |
| 1742 | |
| 1743 | if (b->l == 0) { /* let's realign the buffer to optimize I/O */ |
willy tarreau | 9da061b | 2005-12-17 12:29:56 +0100 | [diff] [blame] | 1744 | b->r = b->w = b->h = b->lr = b->data; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1745 | // max = BUFSIZE; BUG !!!! |
| 1746 | max = 0; |
| 1747 | } |
| 1748 | else if (b->r > b->w) { |
| 1749 | max = b->r - b->w; |
| 1750 | } |
| 1751 | else |
| 1752 | max = b->data + BUFSIZE - b->w; |
| 1753 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1754 | if (fdtab[fd].state != FD_STERROR) { |
willy tarreau | 3242e86 | 2005-12-17 12:27:53 +0100 | [diff] [blame] | 1755 | #ifndef MSG_NOSIGNAL |
| 1756 | int skerr, lskerr; |
| 1757 | #endif |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1758 | |
| 1759 | if (max == 0) { |
| 1760 | s->res_cw = RES_NULL; |
| 1761 | task_wakeup(&rq, t); |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 1762 | tv_eternity(&s->cwexpire); |
| 1763 | FD_CLR(fd, StaticWriteEvent); |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1764 | return 0; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1765 | } |
| 1766 | |
willy tarreau | 3242e86 | 2005-12-17 12:27:53 +0100 | [diff] [blame] | 1767 | #ifndef MSG_NOSIGNAL |
| 1768 | lskerr=sizeof(skerr); |
| 1769 | getsockopt(fd, SOL_SOCKET, SO_ERROR, &skerr, &lskerr); |
| 1770 | if (skerr) |
| 1771 | ret = -1; |
| 1772 | else |
| 1773 | ret = send(fd, b->w, max, MSG_DONTWAIT); |
| 1774 | #else |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1775 | ret = send(fd, b->w, max, MSG_DONTWAIT | MSG_NOSIGNAL); |
willy tarreau | 3242e86 | 2005-12-17 12:27:53 +0100 | [diff] [blame] | 1776 | #endif |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1777 | |
| 1778 | if (ret > 0) { |
| 1779 | b->l -= ret; |
| 1780 | b->w += ret; |
| 1781 | |
| 1782 | s->res_cw = RES_DATA; |
| 1783 | |
| 1784 | if (b->w == b->data + BUFSIZE) { |
| 1785 | b->w = b->data; /* wrap around the buffer */ |
| 1786 | } |
| 1787 | } |
| 1788 | else if (ret == 0) { |
| 1789 | /* nothing written, just make as if we were never called */ |
| 1790 | // s->res_cw = RES_NULL; |
| 1791 | return 0; |
| 1792 | } |
| 1793 | else if (errno == EAGAIN) /* ignore EAGAIN */ |
| 1794 | return 0; |
| 1795 | else { |
| 1796 | s->res_cw = RES_ERROR; |
| 1797 | fdtab[fd].state = FD_STERROR; |
| 1798 | } |
| 1799 | } |
| 1800 | else { |
| 1801 | s->res_cw = RES_ERROR; |
| 1802 | fdtab[fd].state = FD_STERROR; |
| 1803 | } |
| 1804 | |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 1805 | if (s->proxy->clitimeout) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1806 | tv_delayfrom(&s->cwexpire, &now, s->proxy->clitimeout); |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 1807 | /* FIXME: to avoid the client to read-time-out during writes, we refresh it */ |
| 1808 | s->crexpire = s->cwexpire; |
| 1809 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1810 | else |
| 1811 | tv_eternity(&s->cwexpire); |
| 1812 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1813 | task_wakeup(&rq, t); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1814 | return 0; |
| 1815 | } |
| 1816 | |
| 1817 | |
| 1818 | /* |
| 1819 | * this function is called on a write event from a server socket. |
| 1820 | * It returns 0. |
| 1821 | */ |
| 1822 | int event_srv_write(int fd) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1823 | struct task *t = fdtab[fd].owner; |
| 1824 | struct session *s = t->context; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1825 | struct buffer *b = s->req; |
| 1826 | int ret, max; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1827 | |
| 1828 | //fprintf(stderr,"event_srv_write : fd=%d, s=%p\n", fd, s); |
| 1829 | |
| 1830 | if (b->l == 0) { /* let's realign the buffer to optimize I/O */ |
willy tarreau | 9da061b | 2005-12-17 12:29:56 +0100 | [diff] [blame] | 1831 | b->r = b->w = b->h = b->lr = b->data; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1832 | // max = BUFSIZE; BUG !!!! |
| 1833 | max = 0; |
| 1834 | } |
| 1835 | else if (b->r > b->w) { |
| 1836 | max = b->r - b->w; |
| 1837 | } |
| 1838 | else |
| 1839 | max = b->data + BUFSIZE - b->w; |
| 1840 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1841 | if (fdtab[fd].state != FD_STERROR) { |
willy tarreau | 3242e86 | 2005-12-17 12:27:53 +0100 | [diff] [blame] | 1842 | #ifndef MSG_NOSIGNAL |
| 1843 | int skerr, lskerr; |
| 1844 | #endif |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1845 | if (max == 0) { |
| 1846 | /* may be we have received a connection acknowledgement in TCP mode without data */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1847 | s->res_sw = RES_NULL; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1848 | task_wakeup(&rq, t); |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1849 | fdtab[fd].state = FD_STREADY; |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 1850 | tv_eternity(&s->swexpire); |
| 1851 | FD_CLR(fd, StaticWriteEvent); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1852 | return 0; |
| 1853 | } |
| 1854 | |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1855 | |
willy tarreau | 3242e86 | 2005-12-17 12:27:53 +0100 | [diff] [blame] | 1856 | #ifndef MSG_NOSIGNAL |
| 1857 | lskerr=sizeof(skerr); |
| 1858 | getsockopt(fd, SOL_SOCKET, SO_ERROR, &skerr, &lskerr); |
| 1859 | if (skerr) |
| 1860 | ret = -1; |
| 1861 | else |
| 1862 | ret = send(fd, b->w, max, MSG_DONTWAIT); |
| 1863 | #else |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1864 | ret = send(fd, b->w, max, MSG_DONTWAIT | MSG_NOSIGNAL); |
willy tarreau | 3242e86 | 2005-12-17 12:27:53 +0100 | [diff] [blame] | 1865 | #endif |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 1866 | fdtab[fd].state = FD_STREADY; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1867 | if (ret > 0) { |
| 1868 | b->l -= ret; |
| 1869 | b->w += ret; |
| 1870 | |
| 1871 | s->res_sw = RES_DATA; |
| 1872 | |
| 1873 | if (b->w == b->data + BUFSIZE) { |
| 1874 | b->w = b->data; /* wrap around the buffer */ |
| 1875 | } |
| 1876 | } |
| 1877 | else if (ret == 0) { |
| 1878 | /* nothing written, just make as if we were never called */ |
| 1879 | // s->res_sw = RES_NULL; |
| 1880 | return 0; |
| 1881 | } |
| 1882 | else if (errno == EAGAIN) /* ignore EAGAIN */ |
| 1883 | return 0; |
| 1884 | else { |
| 1885 | s->res_sw = RES_ERROR; |
| 1886 | fdtab[fd].state = FD_STERROR; |
| 1887 | } |
| 1888 | } |
| 1889 | else { |
| 1890 | s->res_sw = RES_ERROR; |
| 1891 | fdtab[fd].state = FD_STERROR; |
| 1892 | } |
| 1893 | |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 1894 | if (s->proxy->srvtimeout) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1895 | tv_delayfrom(&s->swexpire, &now, s->proxy->srvtimeout); |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 1896 | /* FIXME: to avoid the server to read-time-out during writes, we refresh it */ |
| 1897 | s->srexpire = s->swexpire; |
| 1898 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1899 | else |
| 1900 | tv_eternity(&s->swexpire); |
| 1901 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 1902 | task_wakeup(&rq, t); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 1903 | return 0; |
| 1904 | } |
| 1905 | |
| 1906 | |
| 1907 | /* |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 1908 | * returns a message to the client ; the connection is shut down for read, |
| 1909 | * and the request is cleared so that no server connection can be initiated. |
| 1910 | * The client must be in a valid state for this (HEADER, DATA ...). |
| 1911 | * Nothing is performed on the server side. |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 1912 | * The reply buffer doesn't need to be empty before this. |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 1913 | */ |
| 1914 | void client_retnclose(struct session *s, int len, const char *msg) { |
| 1915 | FD_CLR(s->cli_fd, StaticReadEvent); |
| 1916 | FD_SET(s->cli_fd, StaticWriteEvent); |
| 1917 | tv_eternity(&s->crexpire); |
| 1918 | shutdown(s->cli_fd, SHUT_RD); |
| 1919 | s->cli_state = CL_STSHUTR; |
| 1920 | strcpy(s->rep->data, msg); |
| 1921 | s->rep->l = len; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 1922 | s->rep->r = s->rep->h = s->rep->lr = s->rep->w = s->rep->data; |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 1923 | s->rep->r += len; |
| 1924 | s->req->l = 0; |
| 1925 | } |
| 1926 | |
| 1927 | |
| 1928 | /* |
| 1929 | * returns a message into the rep buffer, and flushes the req buffer. |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 1930 | * The reply buffer doesn't need to be empty before this. |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 1931 | */ |
| 1932 | void client_return(struct session *s, int len, const char *msg) { |
| 1933 | strcpy(s->rep->data, msg); |
| 1934 | s->rep->l = len; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 1935 | s->rep->r = s->rep->h = s->rep->lr = s->rep->w = s->rep->data; |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 1936 | s->rep->r += len; |
| 1937 | s->req->l = 0; |
| 1938 | } |
| 1939 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 1940 | /* |
| 1941 | * send a log for the session when we have enough info about it |
| 1942 | */ |
| 1943 | void sess_log(struct session *s) { |
| 1944 | unsigned char *pn; |
| 1945 | struct proxy *p = s->proxy; |
| 1946 | int log; |
| 1947 | char *uri; |
| 1948 | char *pxid; |
| 1949 | char *srv; |
| 1950 | |
| 1951 | /* This is a first attempt at a better logging system. |
| 1952 | * For now, we rely on send_log() to provide the date, although it obviously |
| 1953 | * is the date of the log and not of the request, and most fields are not |
| 1954 | * computed. |
| 1955 | */ |
| 1956 | |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 1957 | log = p->to_log & ~s->logs.logwait; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 1958 | |
| 1959 | pn = (log & LW_CLIP) ? |
| 1960 | (unsigned char *)&s->cli_addr.sin_addr : |
| 1961 | (unsigned char *)"\0\0\0\0"; |
| 1962 | |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 1963 | uri = (log & LW_REQ) ? s->logs.uri : "<BADREQ>"; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 1964 | pxid = p->id; |
| 1965 | //srv = (log & LW_SVID) ? s->srv->id : "<svid>"; |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 1966 | srv = ((p->to_log & LW_SVID) && s->srv != NULL) ? s->srv->id : "<NOSRV>"; |
| 1967 | |
| 1968 | if (p->to_log & LW_DATE) { |
| 1969 | struct tm *tm = localtime(&s->logs.tv_accept.tv_sec); |
| 1970 | |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 1971 | send_log(p, LOG_INFO, "%d.%d.%d.%d:%d [%02d/%s/%04d:%02d:%02d:%02d] %s %s %d/%d/%d/%d %d %lld %s %s %c%c%c%c \"%s\"\n", |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 1972 | pn[0], pn[1], pn[2], pn[3], ntohs(s->cli_addr.sin_port), |
| 1973 | tm->tm_mday, monthname[tm->tm_mon], tm->tm_year+1900, |
| 1974 | tm->tm_hour, tm->tm_min, tm->tm_sec, |
| 1975 | pxid, srv, |
| 1976 | s->logs.t_request, |
| 1977 | (s->logs.t_connect >= 0) ? s->logs.t_connect - s->logs.t_request : -1, |
| 1978 | (s->logs.t_data >= 0) ? s->logs.t_data - s->logs.t_connect : -1, |
| 1979 | s->logs.t_close, |
| 1980 | s->logs.status, s->logs.bytes, |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 1981 | s->logs.cli_cookie ? s->logs.cli_cookie : "-", |
| 1982 | s->logs.srv_cookie ? s->logs.srv_cookie : "-", |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 1983 | sess_term_cond[(s->flags & SN_ERR_MASK) >> SN_ERR_SHIFT], |
| 1984 | sess_fin_state[(s->flags & SN_FINST_MASK) >> SN_FINST_SHIFT], |
| 1985 | (p->options & PR_O_COOK_ANY) ? sess_cookie[(s->flags & SN_CK_MASK) >> SN_CK_SHIFT] : '-', |
| 1986 | (p->options & PR_O_COOK_ANY) ? sess_set_cookie[(s->flags & SN_SCK_MASK) >> SN_SCK_SHIFT] : '-', |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 1987 | uri); |
| 1988 | } |
| 1989 | else { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 1990 | send_log(p, LOG_INFO, "%d.%d.%d.%d:%d %s %s %d/%d/%d/%d %d %lld %s %s %c%c%c%c \"%s\"\n", |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 1991 | pn[0], pn[1], pn[2], pn[3], ntohs(s->cli_addr.sin_port), |
| 1992 | pxid, srv, |
| 1993 | s->logs.t_request, |
| 1994 | (s->logs.t_connect >= 0) ? s->logs.t_connect - s->logs.t_request : -1, |
| 1995 | (s->logs.t_data >= 0) ? s->logs.t_data - s->logs.t_connect : -1, |
| 1996 | s->logs.t_close, |
| 1997 | s->logs.status, s->logs.bytes, |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 1998 | s->logs.cli_cookie ? s->logs.cli_cookie : "-", |
| 1999 | s->logs.srv_cookie ? s->logs.srv_cookie : "-", |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 2000 | sess_term_cond[(s->flags & SN_ERR_MASK) >> SN_ERR_SHIFT], |
| 2001 | sess_fin_state[(s->flags & SN_FINST_MASK) >> SN_FINST_SHIFT], |
| 2002 | (p->options & PR_O_COOK_ANY) ? sess_cookie[(s->flags & SN_CK_MASK) >> SN_CK_SHIFT] : '-', |
| 2003 | (p->options & PR_O_COOK_ANY) ? sess_set_cookie[(s->flags & SN_SCK_MASK) >> SN_SCK_SHIFT] : '-', |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 2004 | uri); |
| 2005 | } |
| 2006 | |
| 2007 | s->logs.logwait = 0; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 2008 | } |
| 2009 | |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 2010 | |
| 2011 | /* |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2012 | * this function is called on a read event from a listen socket, corresponding |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2013 | * to an accept. It tries to accept as many connections as possible. |
| 2014 | * It returns 0. |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2015 | */ |
| 2016 | int event_accept(int fd) { |
| 2017 | struct proxy *p = (struct proxy *)fdtab[fd].owner; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2018 | struct session *s; |
| 2019 | struct task *t; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2020 | int cfd; |
| 2021 | int one = 1; |
| 2022 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2023 | while (p->nbconn < p->maxconn) { |
| 2024 | struct sockaddr_in addr; |
| 2025 | int laddr = sizeof(addr); |
| 2026 | if ((cfd = accept(fd, (struct sockaddr *)&addr, &laddr)) == -1) |
| 2027 | return 0; /* nothing more to accept */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2028 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2029 | if ((s = pool_alloc(session)) == NULL) { /* disable this proxy for a while */ |
| 2030 | Alert("out of memory in event_accept().\n"); |
| 2031 | FD_CLR(fd, StaticReadEvent); |
| 2032 | p->state = PR_STIDLE; |
| 2033 | close(cfd); |
| 2034 | return 0; |
| 2035 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2036 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2037 | if ((t = pool_alloc(task)) == NULL) { /* disable this proxy for a while */ |
| 2038 | Alert("out of memory in event_accept().\n"); |
| 2039 | FD_CLR(fd, StaticReadEvent); |
| 2040 | p->state = PR_STIDLE; |
| 2041 | close(cfd); |
| 2042 | pool_free(session, s); |
| 2043 | return 0; |
| 2044 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2045 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2046 | s->cli_addr = addr; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 2047 | if (cfd >= global.maxsock) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2048 | Alert("accept(): not enough free sockets. Raise -n argument. Giving up.\n"); |
| 2049 | close(cfd); |
| 2050 | pool_free(task, t); |
| 2051 | pool_free(session, s); |
| 2052 | return 0; |
| 2053 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2054 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2055 | if ((fcntl(cfd, F_SETFL, O_NONBLOCK) == -1) || |
| 2056 | (setsockopt(cfd, IPPROTO_TCP, TCP_NODELAY, |
| 2057 | (char *) &one, sizeof(one)) == -1)) { |
| 2058 | Alert("accept(): cannot set the socket in non blocking mode. Giving up\n"); |
| 2059 | close(cfd); |
| 2060 | pool_free(task, t); |
| 2061 | pool_free(session, s); |
| 2062 | return 0; |
| 2063 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2064 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 2065 | t->next = t->prev = t->rqnext = NULL; /* task not in run queue yet */ |
| 2066 | t->wq = LIST_HEAD(wait_queue); /* but already has a wait queue assigned */ |
| 2067 | t->state = TASK_IDLE; |
| 2068 | t->process = process_session; |
| 2069 | t->context = s; |
| 2070 | |
| 2071 | s->task = t; |
| 2072 | s->proxy = p; |
| 2073 | s->cli_state = (p->mode == PR_MODE_HTTP) ? CL_STHEADERS : CL_STDATA; /* no HTTP headers for non-HTTP proxies */ |
| 2074 | s->srv_state = SV_STIDLE; |
| 2075 | s->req = s->rep = NULL; /* will be allocated later */ |
| 2076 | s->flags = 0; |
| 2077 | s->res_cr = s->res_cw = s->res_sr = s->res_sw = RES_SILENT; |
| 2078 | s->cli_fd = cfd; |
| 2079 | s->srv_fd = -1; |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 2080 | s->srv = NULL; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 2081 | s->conn_retries = p->conn_retries; |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 2082 | |
| 2083 | s->logs.logwait = p->to_log; |
| 2084 | s->logs.tv_accept = now; |
| 2085 | s->logs.t_request = -1; |
| 2086 | s->logs.t_connect = -1; |
| 2087 | s->logs.t_data = -1; |
| 2088 | s->logs.t_close = 0; |
| 2089 | s->logs.uri = NULL; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 2090 | s->logs.cli_cookie = NULL; |
| 2091 | s->logs.srv_cookie = NULL; |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 2092 | s->logs.status = -1; |
| 2093 | s->logs.bytes = 0; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 2094 | |
willy tarreau | 2f6ba65 | 2005-12-17 13:57:42 +0100 | [diff] [blame] | 2095 | s->uniq_id = totalconn; |
| 2096 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2097 | if ((p->mode == PR_MODE_TCP || p->mode == PR_MODE_HTTP) |
| 2098 | && (p->logfac1 >= 0 || p->logfac2 >= 0)) { |
willy tarreau | 535ae7a | 2005-12-17 12:58:00 +0100 | [diff] [blame] | 2099 | struct sockaddr_in sockname; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2100 | unsigned char *pn, *sn; |
| 2101 | int namelen; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2102 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2103 | namelen = sizeof(sockname); |
| 2104 | if (get_original_dst(cfd, (struct sockaddr_in *)&sockname, &namelen) == -1) |
| 2105 | getsockname(cfd, (struct sockaddr *)&sockname, &namelen); |
| 2106 | sn = (unsigned char *)&sockname.sin_addr; |
willy tarreau | 535ae7a | 2005-12-17 12:58:00 +0100 | [diff] [blame] | 2107 | pn = (unsigned char *)&s->cli_addr.sin_addr; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2108 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 2109 | if (p->to_log) { |
| 2110 | /* we have the client ip */ |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 2111 | if (s->logs.logwait & LW_CLIP) |
| 2112 | if (!(s->logs.logwait &= ~LW_CLIP)) |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 2113 | sess_log(s); |
| 2114 | } |
| 2115 | else |
| 2116 | send_log(p, LOG_INFO, "Connect from %d.%d.%d.%d:%d to %d.%d.%d.%d:%d (%s/%s)\n", |
| 2117 | pn[0], pn[1], pn[2], pn[3], ntohs(s->cli_addr.sin_port), |
| 2118 | sn[0], sn[1], sn[2], sn[3], ntohs(sockname.sin_port), |
| 2119 | p->id, (p->mode == PR_MODE_HTTP) ? "HTTP" : "TCP"); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2120 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2121 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 2122 | if ((global.mode & MODE_DEBUG) && !(global.mode & MODE_QUIET)) { |
willy tarreau | 2f6ba65 | 2005-12-17 13:57:42 +0100 | [diff] [blame] | 2123 | struct sockaddr_in sockname; |
| 2124 | unsigned char *pn, *sn; |
| 2125 | int namelen; |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 2126 | int len; |
willy tarreau | 2f6ba65 | 2005-12-17 13:57:42 +0100 | [diff] [blame] | 2127 | |
| 2128 | namelen = sizeof(sockname); |
| 2129 | if (get_original_dst(cfd, (struct sockaddr_in *)&sockname, &namelen) == -1) |
| 2130 | getsockname(cfd, (struct sockaddr *)&sockname, &namelen); |
| 2131 | sn = (unsigned char *)&sockname.sin_addr; |
| 2132 | pn = (unsigned char *)&s->cli_addr.sin_addr; |
| 2133 | |
| 2134 | len = sprintf(trash, "%08x:%s.accept(%04x)=%04x from [%d.%d.%d.%d:%d]\n", |
| 2135 | s->uniq_id, p->id, (unsigned short)fd, (unsigned short)cfd, |
| 2136 | pn[0], pn[1], pn[2], pn[3], ntohs(s->cli_addr.sin_port)); |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 2137 | write(1, trash, len); |
| 2138 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2139 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2140 | if ((s->req = pool_alloc(buffer)) == NULL) { /* no memory */ |
| 2141 | close(cfd); /* nothing can be done for this fd without memory */ |
| 2142 | pool_free(task, t); |
| 2143 | pool_free(session, s); |
| 2144 | return 0; |
| 2145 | } |
| 2146 | s->req->l = 0; |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 2147 | s->req->total = 0; |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 2148 | s->req->h = s->req->r = s->req->lr = s->req->w = s->req->data; /* r and w will be reset further */ |
| 2149 | s->req->rlim = s->req->data + BUFSIZE; |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 2150 | if (s->cli_state == CL_STHEADERS) /* reserve some space for header rewriting */ |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 2151 | s->req->rlim -= MAXREWRITE; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2152 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2153 | if ((s->rep = pool_alloc(buffer)) == NULL) { /* no memory */ |
| 2154 | pool_free(buffer, s->req); |
| 2155 | close(cfd); /* nothing can be done for this fd without memory */ |
| 2156 | pool_free(task, t); |
| 2157 | pool_free(session, s); |
| 2158 | return 0; |
| 2159 | } |
| 2160 | s->rep->l = 0; |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 2161 | s->rep->total = 0; |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 2162 | s->rep->h = s->rep->r = s->rep->lr = s->rep->w = s->rep->rlim = s->rep->data; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2163 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2164 | fdtab[cfd].read = &event_cli_read; |
| 2165 | fdtab[cfd].write = &event_cli_write; |
| 2166 | fdtab[cfd].owner = t; |
| 2167 | fdtab[cfd].state = FD_STREADY; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2168 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2169 | if (p->mode == PR_MODE_HEALTH) { /* health check mode, no client reading */ |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 2170 | client_retnclose(s, 3, "OK\n"); /* forge an "OK" response */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2171 | } |
| 2172 | else { |
| 2173 | FD_SET(cfd, StaticReadEvent); |
| 2174 | } |
| 2175 | |
| 2176 | fd_insert(cfd); |
| 2177 | |
| 2178 | tv_eternity(&s->cnexpire); |
| 2179 | tv_eternity(&s->srexpire); |
| 2180 | tv_eternity(&s->swexpire); |
| 2181 | tv_eternity(&s->cwexpire); |
| 2182 | |
| 2183 | if (s->proxy->clitimeout) |
| 2184 | tv_delayfrom(&s->crexpire, &now, s->proxy->clitimeout); |
| 2185 | else |
| 2186 | tv_eternity(&s->crexpire); |
| 2187 | |
| 2188 | t->expire = s->crexpire; |
| 2189 | |
| 2190 | task_queue(t); |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 2191 | |
| 2192 | if (p->mode != PR_MODE_HEALTH) |
| 2193 | task_wakeup(&rq, t); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2194 | |
| 2195 | p->nbconn++; |
| 2196 | actconn++; |
| 2197 | totalconn++; |
| 2198 | |
| 2199 | // fprintf(stderr, "accepting from %p => %d conn, %d total\n", p, actconn, totalconn); |
| 2200 | } /* end of while (p->nbconn < p->maxconn) */ |
| 2201 | return 0; |
| 2202 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2203 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2204 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2205 | /* |
| 2206 | * This function is used only for server health-checks. It handles |
willy tarreau | bc4e1fb | 2005-12-17 13:32:07 +0100 | [diff] [blame] | 2207 | * the connection acknowledgement. If the proxy requires HTTP health-checks, |
| 2208 | * it sends the request. In other cases, it returns 1 if the socket is OK, |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2209 | * or -1 if an error occured. |
| 2210 | */ |
willy tarreau | bc4e1fb | 2005-12-17 13:32:07 +0100 | [diff] [blame] | 2211 | int event_srv_chk_w(int fd) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2212 | struct task *t = fdtab[fd].owner; |
| 2213 | struct server *s = t->context; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2214 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2215 | int skerr, lskerr; |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 2216 | lskerr = sizeof(skerr); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2217 | getsockopt(fd, SOL_SOCKET, SO_ERROR, &skerr, &lskerr); |
| 2218 | if (skerr) |
| 2219 | s->result = -1; |
willy tarreau | bc4e1fb | 2005-12-17 13:32:07 +0100 | [diff] [blame] | 2220 | else { |
| 2221 | if (s->proxy->options & PR_O_HTTP_CHK) { |
| 2222 | int ret; |
willy tarreau | 2f6ba65 | 2005-12-17 13:57:42 +0100 | [diff] [blame] | 2223 | /* we want to check if this host replies to "OPTIONS / HTTP/1.0" |
willy tarreau | bc4e1fb | 2005-12-17 13:32:07 +0100 | [diff] [blame] | 2224 | * so we'll send the request, and won't wake the checker up now. |
| 2225 | */ |
| 2226 | #ifndef MSG_NOSIGNAL |
willy tarreau | 2f6ba65 | 2005-12-17 13:57:42 +0100 | [diff] [blame] | 2227 | ret = send(fd, s->proxy->check_req, s->proxy->check_len, MSG_DONTWAIT); |
willy tarreau | bc4e1fb | 2005-12-17 13:32:07 +0100 | [diff] [blame] | 2228 | #else |
willy tarreau | 2f6ba65 | 2005-12-17 13:57:42 +0100 | [diff] [blame] | 2229 | ret = send(fd, s->proxy->check_req, s->proxy->check_len, MSG_DONTWAIT | MSG_NOSIGNAL); |
willy tarreau | bc4e1fb | 2005-12-17 13:32:07 +0100 | [diff] [blame] | 2230 | #endif |
| 2231 | if (ret == 22) { |
| 2232 | FD_SET(fd, StaticReadEvent); /* prepare for reading reply */ |
| 2233 | FD_CLR(fd, StaticWriteEvent); /* nothing more to write */ |
| 2234 | return 0; |
| 2235 | } |
| 2236 | else |
| 2237 | s->result = -1; |
| 2238 | } |
| 2239 | else { |
| 2240 | /* good TCP connection is enough */ |
| 2241 | s->result = 1; |
| 2242 | } |
| 2243 | } |
| 2244 | |
| 2245 | task_wakeup(&rq, t); |
| 2246 | return 0; |
| 2247 | } |
| 2248 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2249 | |
willy tarreau | bc4e1fb | 2005-12-17 13:32:07 +0100 | [diff] [blame] | 2250 | /* |
| 2251 | * This function is used only for server health-checks. It handles |
| 2252 | * the server's reply to an HTTP request. It returns 1 if the server replies |
| 2253 | * 2xx or 3xx (valid responses), or -1 in other cases. |
| 2254 | */ |
| 2255 | int event_srv_chk_r(int fd) { |
| 2256 | char reply[64]; |
| 2257 | int len; |
| 2258 | struct task *t = fdtab[fd].owner; |
| 2259 | struct server *s = t->context; |
| 2260 | |
| 2261 | int skerr, lskerr; |
| 2262 | lskerr = sizeof(skerr); |
| 2263 | getsockopt(fd, SOL_SOCKET, SO_ERROR, &skerr, &lskerr); |
| 2264 | s->result = -1; |
| 2265 | if (!skerr) { |
| 2266 | #ifndef MSG_NOSIGNAL |
| 2267 | len = recv(fd, reply, sizeof(reply), 0); |
| 2268 | #else |
| 2269 | len = recv(fd, reply, sizeof(reply), MSG_NOSIGNAL); |
| 2270 | #endif |
| 2271 | if ((len >= sizeof("HTTP/1.0 000")) && |
| 2272 | !memcmp(reply, "HTTP/1.", 7) && |
| 2273 | (reply[9] == '2' || reply[9] == '3')) /* 2xx or 3xx */ |
| 2274 | s->result = 1; |
| 2275 | } |
| 2276 | |
| 2277 | FD_CLR(fd, StaticReadEvent); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2278 | task_wakeup(&rq, t); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2279 | return 0; |
| 2280 | } |
| 2281 | |
| 2282 | |
| 2283 | /* |
| 2284 | * this function writes the string <str> at position <pos> which must be in buffer <b>, |
| 2285 | * and moves <end> just after the end of <str>. |
| 2286 | * <b>'s parameters (l, r, w, h, lr) are recomputed to be valid after the shift. |
| 2287 | * the shift value (positive or negative) is returned. |
| 2288 | * If there's no space left, the move is not done. |
| 2289 | * |
| 2290 | */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2291 | int buffer_replace(struct buffer *b, char *pos, char *end, char *str) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2292 | int delta; |
| 2293 | int len; |
| 2294 | |
| 2295 | len = strlen(str); |
| 2296 | delta = len - (end - pos); |
| 2297 | |
| 2298 | if (delta + b->r >= b->data + BUFSIZE) |
| 2299 | return 0; /* no space left */ |
| 2300 | |
| 2301 | /* first, protect the end of the buffer */ |
| 2302 | memmove(end + delta, end, b->data + b->l - end); |
| 2303 | |
| 2304 | /* now, copy str over pos */ |
| 2305 | memcpy(pos, str,len); |
| 2306 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2307 | /* we only move data after the displaced zone */ |
| 2308 | if (b->r > pos) b->r += delta; |
| 2309 | if (b->w > pos) b->w += delta; |
| 2310 | if (b->h > pos) b->h += delta; |
| 2311 | if (b->lr > pos) b->lr += delta; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2312 | b->l += delta; |
| 2313 | |
| 2314 | return delta; |
| 2315 | } |
| 2316 | |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 2317 | /* same except that the string length is given, which allows str to be NULL if |
willy tarreau | 240afa6 | 2005-12-17 13:14:35 +0100 | [diff] [blame] | 2318 | * len is 0. |
| 2319 | */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2320 | int buffer_replace2(struct buffer *b, char *pos, char *end, char *str, int len) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2321 | int delta; |
| 2322 | |
| 2323 | delta = len - (end - pos); |
| 2324 | |
| 2325 | if (delta + b->r >= b->data + BUFSIZE) |
| 2326 | return 0; /* no space left */ |
| 2327 | |
| 2328 | /* first, protect the end of the buffer */ |
| 2329 | memmove(end + delta, end, b->data + b->l - end); |
| 2330 | |
| 2331 | /* now, copy str over pos */ |
willy tarreau | 240afa6 | 2005-12-17 13:14:35 +0100 | [diff] [blame] | 2332 | if (len) |
| 2333 | memcpy(pos, str, len); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2334 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2335 | /* we only move data after the displaced zone */ |
| 2336 | if (b->r > pos) b->r += delta; |
| 2337 | if (b->w > pos) b->w += delta; |
| 2338 | if (b->h > pos) b->h += delta; |
| 2339 | if (b->lr > pos) b->lr += delta; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2340 | b->l += delta; |
| 2341 | |
| 2342 | return delta; |
| 2343 | } |
| 2344 | |
| 2345 | |
| 2346 | int exp_replace(char *dst, char *src, char *str, regmatch_t *matches) { |
| 2347 | char *old_dst = dst; |
| 2348 | |
| 2349 | while (*str) { |
| 2350 | if (*str == '\\') { |
| 2351 | str++; |
willy tarreau | c29948c | 2005-12-17 13:10:27 +0100 | [diff] [blame] | 2352 | if (isdigit((int)*str)) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2353 | int len, num; |
| 2354 | |
| 2355 | num = *str - '0'; |
| 2356 | str++; |
| 2357 | |
| 2358 | if (matches[num].rm_so > -1) { |
| 2359 | len = matches[num].rm_eo - matches[num].rm_so; |
| 2360 | memcpy(dst, src + matches[num].rm_so, len); |
| 2361 | dst += len; |
| 2362 | } |
| 2363 | |
| 2364 | } |
| 2365 | else if (*str == 'x') { |
| 2366 | unsigned char hex1, hex2; |
| 2367 | str++; |
| 2368 | |
| 2369 | hex1=toupper(*str++) - '0'; hex2=toupper(*str++) - '0'; |
| 2370 | |
| 2371 | if (hex1 > 9) hex1 -= 'A' - '9' - 1; |
| 2372 | if (hex2 > 9) hex2 -= 'A' - '9' - 1; |
| 2373 | *dst++ = (hex1<<4) + hex2; |
| 2374 | } |
| 2375 | else |
| 2376 | *dst++ = *str++; |
| 2377 | } |
| 2378 | else |
| 2379 | *dst++ = *str++; |
| 2380 | } |
| 2381 | *dst = 0; |
| 2382 | return dst - old_dst; |
| 2383 | } |
| 2384 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 2385 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2386 | /* |
| 2387 | * manages the client FSM and its socket. BTW, it also tries to handle the |
| 2388 | * cookie. It returns 1 if a state has changed (and a resync may be needed), |
| 2389 | * 0 else. |
| 2390 | */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2391 | int process_cli(struct session *t) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2392 | int s = t->srv_state; |
| 2393 | int c = t->cli_state; |
| 2394 | struct buffer *req = t->req; |
| 2395 | struct buffer *rep = t->rep; |
| 2396 | |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 2397 | #ifdef DEBUG_FULL |
| 2398 | fprintf(stderr,"process_cli: c=%s, s=%s\n", cli_stnames[c], srv_stnames[s]); |
| 2399 | #endif |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2400 | //fprintf(stderr,"process_cli: c=%d, s=%d, cr=%d, cw=%d, sr=%d, sw=%d\n", c, s, |
| 2401 | //FD_ISSET(t->cli_fd, StaticReadEvent), FD_ISSET(t->cli_fd, StaticWriteEvent), |
| 2402 | //FD_ISSET(t->srv_fd, StaticReadEvent), FD_ISSET(t->srv_fd, StaticWriteEvent) |
| 2403 | //); |
| 2404 | if (c == CL_STHEADERS) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2405 | /* now parse the partial (or complete) headers */ |
| 2406 | while (req->lr < req->r) { /* this loop only sees one header at each iteration */ |
| 2407 | char *ptr; |
| 2408 | int delete_header; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2409 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2410 | ptr = req->lr; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2411 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2412 | /* look for the end of the current header */ |
| 2413 | while (ptr < req->r && *ptr != '\n' && *ptr != '\r') |
| 2414 | ptr++; |
| 2415 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2416 | if (ptr == req->h) { /* empty line, end of headers */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2417 | int line, len; |
| 2418 | /* we can only get here after an end of headers */ |
| 2419 | /* we'll have something else to do here : add new headers ... */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2420 | |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 2421 | if (t->flags & SN_CLDENY) { |
| 2422 | /* no need to go further */ |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 2423 | t->logs.status = 403; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 2424 | client_retnclose(t, t->proxy->errmsg.len403, t->proxy->errmsg.msg403); |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 2425 | if (!(t->flags & SN_ERR_MASK)) |
| 2426 | t->flags |= SN_ERR_PRXCOND; |
| 2427 | if (!(t->flags & SN_FINST_MASK)) |
| 2428 | t->flags |= SN_FINST_R; |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 2429 | return 1; |
| 2430 | } |
| 2431 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2432 | for (line = 0; line < t->proxy->nb_reqadd; line++) { |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 2433 | len = sprintf(trash, "%s\r\n", t->proxy->req_add[line]); |
| 2434 | buffer_replace2(req, req->h, req->h, trash, len); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2435 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2436 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 2437 | if (t->proxy->options & PR_O_FWDFOR) { |
| 2438 | /* insert an X-Forwarded-For header */ |
| 2439 | unsigned char *pn; |
| 2440 | pn = (unsigned char *)&t->cli_addr.sin_addr; |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 2441 | len = sprintf(trash, "X-Forwarded-For: %d.%d.%d.%d\r\n", |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 2442 | pn[0], pn[1], pn[2], pn[3]); |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 2443 | buffer_replace2(req, req->h, req->h, trash, len); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 2444 | } |
| 2445 | |
willy tarreau | cd87894 | 2005-12-17 13:27:43 +0100 | [diff] [blame] | 2446 | if (!memcmp(req->data, "POST ", 5)) |
| 2447 | t->flags |= SN_POST; /* this is a POST request */ |
| 2448 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2449 | t->cli_state = CL_STDATA; |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 2450 | req->rlim = req->data + BUFSIZE; /* no more rewrite needed */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2451 | |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 2452 | t->logs.t_request = tv_diff(&t->logs.tv_accept, &now); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2453 | /* FIXME: we'll set the client in a wait state while we try to |
| 2454 | * connect to the server. Is this really needed ? wouldn't it be |
| 2455 | * better to release the maximum of system buffers instead ? */ |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 2456 | //FD_CLR(t->cli_fd, StaticReadEvent); |
| 2457 | //tv_eternity(&t->crexpire); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2458 | break; |
| 2459 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2460 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2461 | /* to get a complete header line, we need the ending \r\n, \n\r, \r or \n too */ |
| 2462 | if (ptr > req->r - 2) { |
| 2463 | /* this is a partial header, let's wait for more to come */ |
| 2464 | req->lr = ptr; |
| 2465 | break; |
| 2466 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2467 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2468 | /* now we know that *ptr is either \r or \n, |
| 2469 | * and that there are at least 1 char after it. |
| 2470 | */ |
| 2471 | if ((ptr[0] == ptr[1]) || (ptr[1] != '\r' && ptr[1] != '\n')) |
| 2472 | req->lr = ptr + 1; /* \r\r, \n\n, \r[^\n], \n[^\r] */ |
| 2473 | else |
| 2474 | req->lr = ptr + 2; /* \r\n or \n\r */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2475 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2476 | /* |
| 2477 | * now we know that we have a full header ; we can do whatever |
| 2478 | * we want with these pointers : |
| 2479 | * req->h = beginning of header |
| 2480 | * ptr = end of header (first \r or \n) |
| 2481 | * req->lr = beginning of next line (next rep->h) |
| 2482 | * req->r = end of data (not used at this stage) |
| 2483 | */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2484 | |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 2485 | if (t->logs.logwait & LW_REQ) { |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 2486 | /* we have a complete HTTP request that we must log */ |
| 2487 | int urilen; |
| 2488 | |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 2489 | if ((t->logs.uri = pool_alloc(requri)) == NULL) { |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 2490 | Alert("HTTP logging : out of memory.\n"); |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 2491 | t->logs.status = 500; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 2492 | client_retnclose(t, t->proxy->errmsg.len500, t->proxy->errmsg.msg500); |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 2493 | if (!(t->flags & SN_ERR_MASK)) |
| 2494 | t->flags |= SN_ERR_PRXCOND; |
| 2495 | if (!(t->flags & SN_FINST_MASK)) |
| 2496 | t->flags |= SN_FINST_R; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 2497 | return 1; |
| 2498 | } |
| 2499 | |
| 2500 | urilen = ptr - req->h; |
| 2501 | if (urilen >= REQURI_LEN) |
| 2502 | urilen = REQURI_LEN - 1; |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 2503 | memcpy(t->logs.uri, req->h, urilen); |
| 2504 | t->logs.uri[urilen] = 0; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 2505 | |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 2506 | if (!(t->logs.logwait &= ~LW_REQ)) |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 2507 | sess_log(t); |
| 2508 | } |
| 2509 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2510 | delete_header = 0; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2511 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 2512 | if ((global.mode & MODE_DEBUG) && !(global.mode & MODE_QUIET)) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2513 | int len, max; |
willy tarreau | 2f6ba65 | 2005-12-17 13:57:42 +0100 | [diff] [blame] | 2514 | len = sprintf(trash, "%08x:%s.clihdr[%04x:%04x]: ", t->uniq_id, t->proxy->id, (unsigned short)t->cli_fd, (unsigned short)t->srv_fd); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2515 | max = ptr - req->h; |
| 2516 | UBOUND(max, sizeof(trash) - len - 1); |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 2517 | len += strlcpy2(trash + len, req->h, max + 1); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2518 | trash[len++] = '\n'; |
| 2519 | write(1, trash, len); |
| 2520 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2521 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2522 | /* try headers regexps */ |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 2523 | if (t->proxy->req_exp != NULL && !(t->flags & SN_CLDENY)) { |
| 2524 | struct hdr_exp *exp; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2525 | char term; |
| 2526 | |
| 2527 | term = *ptr; |
| 2528 | *ptr = '\0'; |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 2529 | exp = t->proxy->req_exp; |
| 2530 | do { |
| 2531 | if (regexec(exp->preg, req->h, MAX_MATCH, pmatch, 0) == 0) { |
| 2532 | switch (exp->action) { |
| 2533 | case ACT_ALLOW: |
| 2534 | if (!(t->flags & SN_CLDENY)) |
| 2535 | t->flags |= SN_CLALLOW; |
| 2536 | break; |
| 2537 | case ACT_REPLACE: |
| 2538 | if (!(t->flags & SN_CLDENY)) { |
| 2539 | int len = exp_replace(trash, req->h, exp->replace, pmatch); |
| 2540 | ptr += buffer_replace2(req, req->h, ptr, trash, len); |
| 2541 | } |
| 2542 | break; |
| 2543 | case ACT_REMOVE: |
| 2544 | if (!(t->flags & SN_CLDENY)) |
| 2545 | delete_header = 1; |
| 2546 | break; |
| 2547 | case ACT_DENY: |
| 2548 | if (!(t->flags & SN_CLALLOW)) |
| 2549 | t->flags |= SN_CLDENY; |
| 2550 | break; |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 2551 | case ACT_PASS: /* we simply don't deny this one */ |
| 2552 | break; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2553 | } |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2554 | break; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2555 | } |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 2556 | } while ((exp = exp->next) != NULL); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2557 | *ptr = term; /* restore the string terminator */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2558 | } |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2559 | |
willy tarreau | 240afa6 | 2005-12-17 13:14:35 +0100 | [diff] [blame] | 2560 | /* Now look for cookies. Conforming to RFC2109, we have to support |
| 2561 | * attributes whose name begin with a '$', and associate them with |
| 2562 | * the right cookie, if we want to delete this cookie. |
| 2563 | * So there are 3 cases for each cookie read : |
| 2564 | * 1) it's a special attribute, beginning with a '$' : ignore it. |
| 2565 | * 2) it's a server id cookie that we *MAY* want to delete : save |
| 2566 | * some pointers on it (last semi-colon, beginning of cookie...) |
| 2567 | * 3) it's an application cookie : we *MAY* have to delete a previous |
| 2568 | * "special" cookie. |
| 2569 | * At the end of loop, if a "special" cookie remains, we may have to |
| 2570 | * remove it. If no application cookie persists in the header, we |
| 2571 | * *MUST* delete it |
| 2572 | */ |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 2573 | if (!delete_header && (t->proxy->cookie_name != NULL || t->proxy->capture_name != NULL) |
willy tarreau | 240afa6 | 2005-12-17 13:14:35 +0100 | [diff] [blame] | 2574 | && !(t->flags & SN_CLDENY) && (ptr >= req->h + 8) |
willy tarreau | 906b268 | 2005-12-17 13:49:52 +0100 | [diff] [blame] | 2575 | && (strncasecmp(req->h, "Cookie: ", 8) == 0)) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2576 | char *p1, *p2, *p3, *p4; |
willy tarreau | 240afa6 | 2005-12-17 13:14:35 +0100 | [diff] [blame] | 2577 | char *del_colon, *del_cookie, *colon; |
| 2578 | int app_cookies; |
| 2579 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2580 | p1 = req->h + 8; /* first char after 'Cookie: ' */ |
willy tarreau | 240afa6 | 2005-12-17 13:14:35 +0100 | [diff] [blame] | 2581 | colon = p1; |
| 2582 | /* del_cookie == NULL => nothing to be deleted */ |
| 2583 | del_colon = del_cookie = NULL; |
| 2584 | app_cookies = 0; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2585 | |
| 2586 | while (p1 < ptr) { |
willy tarreau | 240afa6 | 2005-12-17 13:14:35 +0100 | [diff] [blame] | 2587 | /* skip spaces and colons, but keep an eye on these ones */ |
| 2588 | while (p1 < ptr) { |
| 2589 | if (*p1 == ';' || *p1 == ',') |
| 2590 | colon = p1; |
| 2591 | else if (!isspace((int)*p1)) |
| 2592 | break; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2593 | p1++; |
willy tarreau | 240afa6 | 2005-12-17 13:14:35 +0100 | [diff] [blame] | 2594 | } |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2595 | |
| 2596 | if (p1 == ptr) |
| 2597 | break; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2598 | |
| 2599 | /* p1 is at the beginning of the cookie name */ |
| 2600 | p2 = p1; |
willy tarreau | 240afa6 | 2005-12-17 13:14:35 +0100 | [diff] [blame] | 2601 | while (p2 < ptr && *p2 != '=') |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2602 | p2++; |
| 2603 | |
| 2604 | if (p2 == ptr) |
| 2605 | break; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2606 | |
| 2607 | p3 = p2 + 1; /* skips the '=' sign */ |
| 2608 | if (p3 == ptr) |
| 2609 | break; |
| 2610 | |
willy tarreau | 240afa6 | 2005-12-17 13:14:35 +0100 | [diff] [blame] | 2611 | p4 = p3; |
| 2612 | while (p4 < ptr && !isspace((int)*p4) && *p4 != ';' && *p4 != ',') |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2613 | p4++; |
| 2614 | |
| 2615 | /* here, we have the cookie name between p1 and p2, |
| 2616 | * and its value between p3 and p4. |
| 2617 | * we can process it. |
| 2618 | */ |
| 2619 | |
willy tarreau | 240afa6 | 2005-12-17 13:14:35 +0100 | [diff] [blame] | 2620 | if (*p1 == '$') { |
| 2621 | /* skip this one */ |
| 2622 | } |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 2623 | else { |
| 2624 | /* first, let's see if we want to capture it */ |
| 2625 | if (t->proxy->capture_name != NULL && |
| 2626 | t->logs.cli_cookie == NULL && |
| 2627 | (p4 - p1 >= t->proxy->capture_namelen) && |
| 2628 | memcmp(p1, t->proxy->capture_name, t->proxy->capture_namelen) == 0) { |
| 2629 | int log_len = p4 - p1; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2630 | |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 2631 | if ((t->logs.cli_cookie = pool_alloc(capture)) == NULL) { |
| 2632 | Alert("HTTP logging : out of memory.\n"); |
| 2633 | } |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2634 | |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 2635 | if (log_len > t->proxy->capture_len) |
| 2636 | log_len = t->proxy->capture_len; |
| 2637 | memcpy(t->logs.cli_cookie, p1, log_len); |
| 2638 | t->logs.cli_cookie[log_len] = 0; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2639 | } |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 2640 | |
| 2641 | if ((p2 - p1 == t->proxy->cookie_len) && (t->proxy->cookie_name != NULL) && |
| 2642 | (memcmp(p1, t->proxy->cookie_name, p2 - p1) == 0)) { |
| 2643 | /* Cool... it's the right one */ |
| 2644 | struct server *srv = t->proxy->srv; |
| 2645 | |
| 2646 | while (srv && |
| 2647 | ((srv->cklen != p4 - p3) || memcmp(p3, srv->cookie, p4 - p3))) { |
| 2648 | srv = srv->next; |
| 2649 | } |
| 2650 | |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 2651 | if (!srv) { |
| 2652 | t->flags &= ~SN_CK_MASK; |
| 2653 | t->flags |= SN_CK_INVALID; |
| 2654 | } |
| 2655 | else if (srv->state & SRV_RUNNING || t->proxy->options & PR_O_PERSIST) { |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 2656 | /* we found the server and it's usable */ |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 2657 | t->flags &= ~SN_CK_MASK; |
| 2658 | t->flags |= SN_CK_VALID | SN_DIRECT; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 2659 | t->srv = srv; |
| 2660 | } |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 2661 | else { |
| 2662 | t->flags &= ~SN_CK_MASK; |
| 2663 | t->flags |= SN_CK_DOWN; |
| 2664 | } |
| 2665 | |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 2666 | /* if this cookie was set in insert+indirect mode, then it's better that the |
| 2667 | * server never sees it. |
| 2668 | */ |
| 2669 | if (del_cookie == NULL && |
| 2670 | (t->proxy->options & (PR_O_COOK_INS | PR_O_COOK_IND)) == (PR_O_COOK_INS | PR_O_COOK_IND)) { |
willy tarreau | 240afa6 | 2005-12-17 13:14:35 +0100 | [diff] [blame] | 2671 | del_cookie = p1; |
| 2672 | del_colon = colon; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 2673 | } |
willy tarreau | 240afa6 | 2005-12-17 13:14:35 +0100 | [diff] [blame] | 2674 | } |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 2675 | else { |
| 2676 | /* now we know that we must keep this cookie since it's |
| 2677 | * not ours. But if we wanted to delete our cookie |
| 2678 | * earlier, we cannot remove the complete header, but we |
| 2679 | * can remove the previous block itself. |
| 2680 | */ |
| 2681 | app_cookies++; |
| 2682 | |
| 2683 | if (del_cookie != NULL) { |
| 2684 | buffer_replace2(req, del_cookie, p1, NULL, 0); |
| 2685 | p4 -= (p1 - del_cookie); |
| 2686 | ptr -= (p1 - del_cookie); |
| 2687 | del_cookie = del_colon = NULL; |
| 2688 | } |
willy tarreau | 240afa6 | 2005-12-17 13:14:35 +0100 | [diff] [blame] | 2689 | } |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2690 | } |
willy tarreau | 240afa6 | 2005-12-17 13:14:35 +0100 | [diff] [blame] | 2691 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2692 | /* we'll have to look for another cookie ... */ |
| 2693 | p1 = p4; |
| 2694 | } /* while (p1 < ptr) */ |
willy tarreau | 240afa6 | 2005-12-17 13:14:35 +0100 | [diff] [blame] | 2695 | |
| 2696 | /* There's no more cookie on this line. |
| 2697 | * We may have marked the last one(s) for deletion. |
| 2698 | * We must do this now in two ways : |
| 2699 | * - if there is no app cookie, we simply delete the header ; |
| 2700 | * - if there are app cookies, we must delete the end of the |
| 2701 | * string properly, including the colon/semi-colon before |
| 2702 | * the cookie name. |
| 2703 | */ |
| 2704 | if (del_cookie != NULL) { |
| 2705 | if (app_cookies) { |
| 2706 | buffer_replace2(req, del_colon, ptr, NULL, 0); |
| 2707 | /* WARNING! <ptr> becomes invalid for now. If some code |
| 2708 | * below needs to rely on it before the end of the global |
| 2709 | * header loop, we need to correct it with this code : |
| 2710 | * ptr = del_colon; |
| 2711 | */ |
| 2712 | } |
| 2713 | else |
| 2714 | delete_header = 1; |
| 2715 | } |
| 2716 | } /* end of cookie processing on this header */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2717 | |
| 2718 | /* let's look if we have to delete this header */ |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 2719 | if (delete_header && !(t->flags & SN_CLDENY)) { |
willy tarreau | 240afa6 | 2005-12-17 13:14:35 +0100 | [diff] [blame] | 2720 | buffer_replace2(req, req->h, req->lr, NULL, 0); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2721 | } |
willy tarreau | 240afa6 | 2005-12-17 13:14:35 +0100 | [diff] [blame] | 2722 | /* WARNING: ptr is not valid anymore, since the header may have been deleted or truncated ! */ |
| 2723 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2724 | req->h = req->lr; |
| 2725 | } /* while (req->lr < req->r) */ |
| 2726 | |
| 2727 | /* end of header processing (even if incomplete) */ |
| 2728 | |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 2729 | if ((req->l < req->rlim - req->data) && ! FD_ISSET(t->cli_fd, StaticReadEvent)) { |
| 2730 | /* fd in StaticReadEvent was disabled, perhaps because of a previous buffer |
| 2731 | * full. We cannot loop here since event_cli_read will disable it only if |
| 2732 | * req->l == rlim-data |
| 2733 | */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2734 | FD_SET(t->cli_fd, StaticReadEvent); |
| 2735 | if (t->proxy->clitimeout) |
| 2736 | tv_delayfrom(&t->crexpire, &now, t->proxy->clitimeout); |
| 2737 | else |
| 2738 | tv_eternity(&t->crexpire); |
| 2739 | } |
| 2740 | |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 2741 | /* Since we are in header mode, if there's no space left for headers, we |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 2742 | * won't be able to free more later, so the session will never terminate. |
| 2743 | */ |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 2744 | if (req->l >= req->rlim - req->data) { |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 2745 | t->logs.status = 400; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 2746 | client_retnclose(t, t->proxy->errmsg.len400, t->proxy->errmsg.msg400); |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 2747 | if (!(t->flags & SN_ERR_MASK)) |
| 2748 | t->flags |= SN_ERR_PRXCOND; |
| 2749 | if (!(t->flags & SN_FINST_MASK)) |
| 2750 | t->flags |= SN_FINST_R; |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 2751 | return 1; |
| 2752 | } |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 2753 | else if (t->res_cr == RES_ERROR || t->res_cr == RES_NULL) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 2754 | /* read error, or last read : give up. */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2755 | tv_eternity(&t->crexpire); |
| 2756 | fd_delete(t->cli_fd); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2757 | t->cli_state = CL_STCLOSE; |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 2758 | if (!(t->flags & SN_ERR_MASK)) |
| 2759 | t->flags |= SN_ERR_CLICL; |
| 2760 | if (!(t->flags & SN_FINST_MASK)) |
| 2761 | t->flags |= SN_FINST_R; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2762 | return 1; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2763 | } |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 2764 | else if (tv_cmp2_ms(&t->crexpire, &now) <= 0) { |
| 2765 | |
| 2766 | /* read timeout : give up with an error message. |
| 2767 | */ |
| 2768 | t->logs.status = 408; |
| 2769 | client_retnclose(t, t->proxy->errmsg.len408, t->proxy->errmsg.msg408); |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 2770 | if (!(t->flags & SN_ERR_MASK)) |
| 2771 | t->flags |= SN_ERR_CLITO; |
| 2772 | if (!(t->flags & SN_FINST_MASK)) |
| 2773 | t->flags |= SN_FINST_R; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 2774 | return 1; |
| 2775 | } |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2776 | |
| 2777 | return t->cli_state != CL_STHEADERS; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2778 | } |
| 2779 | else if (c == CL_STDATA) { |
| 2780 | /* read or write error */ |
| 2781 | if (t->res_cw == RES_ERROR || t->res_cr == RES_ERROR) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2782 | tv_eternity(&t->crexpire); |
| 2783 | tv_eternity(&t->cwexpire); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2784 | fd_delete(t->cli_fd); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2785 | t->cli_state = CL_STCLOSE; |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 2786 | if (!(t->flags & SN_ERR_MASK)) |
| 2787 | t->flags |= SN_ERR_CLICL; |
| 2788 | if (!(t->flags & SN_FINST_MASK)) |
| 2789 | t->flags |= SN_FINST_D; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2790 | return 1; |
| 2791 | } |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 2792 | /* last read, or end of server write */ |
| 2793 | else if (t->res_cr == RES_NULL || s == SV_STSHUTW || s == SV_STCLOSE) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2794 | FD_CLR(t->cli_fd, StaticReadEvent); |
| 2795 | // if (req->l == 0) /* nothing to write on the server side */ |
| 2796 | // FD_CLR(t->srv_fd, StaticWriteEvent); |
| 2797 | tv_eternity(&t->crexpire); |
| 2798 | shutdown(t->cli_fd, SHUT_RD); |
| 2799 | t->cli_state = CL_STSHUTR; |
| 2800 | return 1; |
| 2801 | } |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 2802 | /* last server read and buffer empty */ |
| 2803 | else if ((s == SV_STSHUTR || s == SV_STCLOSE) && (rep->l == 0)) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2804 | FD_CLR(t->cli_fd, StaticWriteEvent); |
| 2805 | tv_eternity(&t->cwexpire); |
| 2806 | shutdown(t->cli_fd, SHUT_WR); |
| 2807 | t->cli_state = CL_STSHUTW; |
| 2808 | return 1; |
| 2809 | } |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 2810 | /* read timeout */ |
| 2811 | else if (tv_cmp2_ms(&t->crexpire, &now) <= 0) { |
| 2812 | FD_CLR(t->cli_fd, StaticReadEvent); |
| 2813 | // if (req->l == 0) /* nothing to write on the server side */ |
| 2814 | // FD_CLR(t->srv_fd, StaticWriteEvent); |
| 2815 | tv_eternity(&t->crexpire); |
| 2816 | shutdown(t->cli_fd, SHUT_RD); |
| 2817 | t->cli_state = CL_STSHUTR; |
| 2818 | if (!(t->flags & SN_ERR_MASK)) |
| 2819 | t->flags |= SN_ERR_CLITO; |
| 2820 | if (!(t->flags & SN_FINST_MASK)) |
| 2821 | t->flags |= SN_FINST_D; |
| 2822 | return 1; |
| 2823 | } |
| 2824 | /* write timeout */ |
| 2825 | else if (tv_cmp2_ms(&t->cwexpire, &now) <= 0) { |
| 2826 | FD_CLR(t->cli_fd, StaticWriteEvent); |
| 2827 | tv_eternity(&t->cwexpire); |
| 2828 | shutdown(t->cli_fd, SHUT_WR); |
| 2829 | t->cli_state = CL_STSHUTW; |
| 2830 | if (!(t->flags & SN_ERR_MASK)) |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 2831 | t->flags |= SN_ERR_CLITO; |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 2832 | if (!(t->flags & SN_FINST_MASK)) |
| 2833 | t->flags |= SN_FINST_D; |
| 2834 | return 1; |
| 2835 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2836 | |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 2837 | if (req->l >= req->rlim - req->data) { |
| 2838 | /* no room to read more data */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2839 | if (FD_ISSET(t->cli_fd, StaticReadEvent)) { |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 2840 | /* stop reading until we get some space */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2841 | FD_CLR(t->cli_fd, StaticReadEvent); |
| 2842 | tv_eternity(&t->crexpire); |
| 2843 | } |
| 2844 | } |
| 2845 | else { |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 2846 | /* there's still some space in the buffer */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2847 | if (! FD_ISSET(t->cli_fd, StaticReadEvent)) { |
| 2848 | FD_SET(t->cli_fd, StaticReadEvent); |
| 2849 | if (t->proxy->clitimeout) |
| 2850 | tv_delayfrom(&t->crexpire, &now, t->proxy->clitimeout); |
| 2851 | else |
| 2852 | tv_eternity(&t->crexpire); |
| 2853 | } |
| 2854 | } |
| 2855 | |
| 2856 | if ((rep->l == 0) || |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2857 | ((s == SV_STHEADERS) /* FIXME: this may be optimized && (rep->w == rep->h)*/)) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2858 | if (FD_ISSET(t->cli_fd, StaticWriteEvent)) { |
| 2859 | FD_CLR(t->cli_fd, StaticWriteEvent); /* stop writing */ |
| 2860 | tv_eternity(&t->cwexpire); |
| 2861 | } |
| 2862 | } |
| 2863 | else { /* buffer not empty */ |
| 2864 | if (! FD_ISSET(t->cli_fd, StaticWriteEvent)) { |
| 2865 | FD_SET(t->cli_fd, StaticWriteEvent); /* restart writing */ |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 2866 | if (t->proxy->clitimeout) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2867 | tv_delayfrom(&t->cwexpire, &now, t->proxy->clitimeout); |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 2868 | /* FIXME: to avoid the client to read-time-out during writes, we refresh it */ |
| 2869 | t->crexpire = t->cwexpire; |
| 2870 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2871 | else |
| 2872 | tv_eternity(&t->cwexpire); |
| 2873 | } |
| 2874 | } |
| 2875 | return 0; /* other cases change nothing */ |
| 2876 | } |
| 2877 | else if (c == CL_STSHUTR) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 2878 | if (t->res_cw == RES_ERROR) { |
| 2879 | tv_eternity(&t->cwexpire); |
| 2880 | fd_delete(t->cli_fd); |
| 2881 | t->cli_state = CL_STCLOSE; |
| 2882 | if (!(t->flags & SN_ERR_MASK)) |
| 2883 | t->flags |= SN_ERR_CLICL; |
| 2884 | if (!(t->flags & SN_FINST_MASK)) |
| 2885 | t->flags |= SN_FINST_D; |
| 2886 | return 1; |
| 2887 | } |
| 2888 | else if ((s == SV_STSHUTR || s == SV_STCLOSE) && (rep->l == 0)) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2889 | tv_eternity(&t->cwexpire); |
| 2890 | fd_delete(t->cli_fd); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2891 | t->cli_state = CL_STCLOSE; |
| 2892 | return 1; |
| 2893 | } |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 2894 | else if (tv_cmp2_ms(&t->cwexpire, &now) <= 0) { |
| 2895 | tv_eternity(&t->cwexpire); |
| 2896 | fd_delete(t->cli_fd); |
| 2897 | t->cli_state = CL_STCLOSE; |
| 2898 | if (!(t->flags & SN_ERR_MASK)) |
| 2899 | t->flags |= SN_ERR_CLITO; |
| 2900 | if (!(t->flags & SN_FINST_MASK)) |
| 2901 | t->flags |= SN_FINST_D; |
| 2902 | return 1; |
| 2903 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2904 | else if ((rep->l == 0) || |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2905 | ((s == SV_STHEADERS) /* FIXME: this may be optimized && (rep->w == rep->h)*/)) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2906 | if (FD_ISSET(t->cli_fd, StaticWriteEvent)) { |
| 2907 | FD_CLR(t->cli_fd, StaticWriteEvent); /* stop writing */ |
| 2908 | tv_eternity(&t->cwexpire); |
| 2909 | } |
| 2910 | } |
| 2911 | else { /* buffer not empty */ |
| 2912 | if (! FD_ISSET(t->cli_fd, StaticWriteEvent)) { |
| 2913 | FD_SET(t->cli_fd, StaticWriteEvent); /* restart writing */ |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 2914 | if (t->proxy->clitimeout) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2915 | tv_delayfrom(&t->cwexpire, &now, t->proxy->clitimeout); |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 2916 | /* FIXME: to avoid the client to read-time-out during writes, we refresh it */ |
| 2917 | t->crexpire = t->cwexpire; |
| 2918 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2919 | else |
| 2920 | tv_eternity(&t->cwexpire); |
| 2921 | } |
| 2922 | } |
| 2923 | return 0; |
| 2924 | } |
| 2925 | else if (c == CL_STSHUTW) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 2926 | if (t->res_cr == RES_ERROR) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2927 | tv_eternity(&t->crexpire); |
| 2928 | fd_delete(t->cli_fd); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2929 | t->cli_state = CL_STCLOSE; |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 2930 | if (!(t->flags & SN_ERR_MASK)) |
| 2931 | t->flags |= SN_ERR_CLICL; |
| 2932 | if (!(t->flags & SN_FINST_MASK)) |
| 2933 | t->flags |= SN_FINST_D; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2934 | return 1; |
| 2935 | } |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 2936 | else if (t->res_cr == RES_NULL || s == SV_STSHUTW || s == SV_STCLOSE) { |
| 2937 | tv_eternity(&t->crexpire); |
| 2938 | fd_delete(t->cli_fd); |
| 2939 | t->cli_state = CL_STCLOSE; |
| 2940 | return 1; |
| 2941 | } |
| 2942 | else if (tv_cmp2_ms(&t->crexpire, &now) <= 0) { |
| 2943 | tv_eternity(&t->crexpire); |
| 2944 | fd_delete(t->cli_fd); |
| 2945 | t->cli_state = CL_STCLOSE; |
| 2946 | if (!(t->flags & SN_ERR_MASK)) |
| 2947 | t->flags |= SN_ERR_CLITO; |
| 2948 | if (!(t->flags & SN_FINST_MASK)) |
| 2949 | t->flags |= SN_FINST_D; |
| 2950 | return 1; |
| 2951 | } |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 2952 | else if (req->l >= req->rlim - req->data) { |
| 2953 | /* no room to read more data */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2954 | if (FD_ISSET(t->cli_fd, StaticReadEvent)) { |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 2955 | /* stop reading until we get some space */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2956 | FD_CLR(t->cli_fd, StaticReadEvent); |
| 2957 | tv_eternity(&t->crexpire); |
| 2958 | } |
| 2959 | } |
| 2960 | else { |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 2961 | /* there's still some space in the buffer */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2962 | if (! FD_ISSET(t->cli_fd, StaticReadEvent)) { |
| 2963 | FD_SET(t->cli_fd, StaticReadEvent); |
| 2964 | if (t->proxy->clitimeout) |
| 2965 | tv_delayfrom(&t->crexpire, &now, t->proxy->clitimeout); |
| 2966 | else |
| 2967 | tv_eternity(&t->crexpire); |
| 2968 | } |
| 2969 | } |
| 2970 | return 0; |
| 2971 | } |
| 2972 | else { /* CL_STCLOSE: nothing to do */ |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 2973 | if ((global.mode & MODE_DEBUG) && !(global.mode & MODE_QUIET)) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2974 | int len; |
willy tarreau | 2f6ba65 | 2005-12-17 13:57:42 +0100 | [diff] [blame] | 2975 | len = sprintf(trash, "%08x:%s.clicls[%04x:%04x]\n", t->uniq_id, t->proxy->id, (unsigned short)t->cli_fd, (unsigned short)t->srv_fd); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2976 | write(1, trash, len); |
| 2977 | } |
| 2978 | return 0; |
| 2979 | } |
| 2980 | return 0; |
| 2981 | } |
| 2982 | |
| 2983 | |
| 2984 | /* |
| 2985 | * manages the server FSM and its socket. It returns 1 if a state has changed |
| 2986 | * (and a resync may be needed), 0 else. |
| 2987 | */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2988 | int process_srv(struct session *t) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 2989 | int s = t->srv_state; |
| 2990 | int c = t->cli_state; |
| 2991 | struct buffer *req = t->req; |
| 2992 | struct buffer *rep = t->rep; |
| 2993 | |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 2994 | #ifdef DEBUG_FULL |
| 2995 | fprintf(stderr,"process_srv: c=%s, s=%s\n", cli_stnames[c], srv_stnames[s]); |
| 2996 | #endif |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 2997 | //fprintf(stderr,"process_srv: c=%d, s=%d, cr=%d, cw=%d, sr=%d, sw=%d\n", c, s, |
| 2998 | //FD_ISSET(t->cli_fd, StaticReadEvent), FD_ISSET(t->cli_fd, StaticWriteEvent), |
| 2999 | //FD_ISSET(t->srv_fd, StaticReadEvent), FD_ISSET(t->srv_fd, StaticWriteEvent) |
| 3000 | //); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3001 | if (s == SV_STIDLE) { |
| 3002 | if (c == CL_STHEADERS) |
| 3003 | return 0; /* stay in idle, waiting for data to reach the client side */ |
| 3004 | else if (c == CL_STCLOSE || |
| 3005 | c == CL_STSHUTW || |
| 3006 | (c == CL_STSHUTR && t->req->l == 0)) { /* give up */ |
| 3007 | tv_eternity(&t->cnexpire); |
| 3008 | t->srv_state = SV_STCLOSE; |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3009 | if (!(t->flags & SN_ERR_MASK)) |
| 3010 | t->flags |= SN_ERR_CLICL; |
| 3011 | if (!(t->flags & SN_FINST_MASK)) |
| 3012 | t->flags |= SN_FINST_C; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3013 | return 1; |
| 3014 | } |
| 3015 | else { /* go to SV_STCONN */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3016 | if (connect_server(t) == 0) { /* initiate a connection to the server */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3017 | //fprintf(stderr,"0: c=%d, s=%d\n", c, s); |
| 3018 | t->srv_state = SV_STCONN; |
| 3019 | } |
| 3020 | else { /* try again */ |
| 3021 | while (t->conn_retries-- > 0) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3022 | if ((t->proxy->options & PR_O_REDISP) && (t->conn_retries == 0)) { |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 3023 | t->flags &= ~SN_DIRECT; /* ignore cookie and force to use the dispatcher */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3024 | t->srv = NULL; /* it's left to the dispatcher to choose a server */ |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3025 | if ((t->flags & SN_CK_MASK) == SN_CK_VALID) { |
| 3026 | t->flags &= ~SN_CK_MASK; |
| 3027 | t->flags |= SN_CK_DOWN; |
| 3028 | } |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3029 | } |
| 3030 | |
| 3031 | if (connect_server(t) == 0) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3032 | t->srv_state = SV_STCONN; |
| 3033 | break; |
| 3034 | } |
| 3035 | } |
| 3036 | if (t->conn_retries < 0) { |
| 3037 | /* if conn_retries < 0 or other error, let's abort */ |
| 3038 | tv_eternity(&t->cnexpire); |
| 3039 | t->srv_state = SV_STCLOSE; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 3040 | t->logs.status = 503; |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 3041 | if (t->proxy->mode == PR_MODE_HTTP) |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 3042 | client_return(t, t->proxy->errmsg.len503, t->proxy->errmsg.msg503); |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3043 | if (!(t->flags & SN_ERR_MASK)) |
| 3044 | t->flags |= SN_ERR_SRVCL; |
| 3045 | if (!(t->flags & SN_FINST_MASK)) |
| 3046 | t->flags |= SN_FINST_C; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3047 | } |
| 3048 | } |
| 3049 | return 1; |
| 3050 | } |
| 3051 | } |
| 3052 | else if (s == SV_STCONN) { /* connection in progress */ |
| 3053 | if (t->res_sw == RES_SILENT && tv_cmp2_ms(&t->cnexpire, &now) > 0) { |
| 3054 | //fprintf(stderr,"1: c=%d, s=%d\n", c, s); |
| 3055 | return 0; /* nothing changed */ |
| 3056 | } |
| 3057 | else if (t->res_sw == RES_SILENT || t->res_sw == RES_ERROR) { |
| 3058 | //fprintf(stderr,"2: c=%d, s=%d\n", c, s); |
| 3059 | /* timeout, connect error or first write error */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3060 | //FD_CLR(t->srv_fd, StaticWriteEvent); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3061 | fd_delete(t->srv_fd); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3062 | //close(t->srv_fd); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3063 | t->conn_retries--; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3064 | if (t->conn_retries >= 0) { |
| 3065 | if ((t->proxy->options & PR_O_REDISP) && (t->conn_retries == 0)) { |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 3066 | t->flags &= ~SN_DIRECT; /* ignore cookie and force to use the dispatcher */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3067 | t->srv = NULL; /* it's left to the dispatcher to choose a server */ |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3068 | if ((t->flags & SN_CK_MASK) == SN_CK_VALID) { |
| 3069 | t->flags &= ~SN_CK_MASK; |
| 3070 | t->flags |= SN_CK_DOWN; |
| 3071 | } |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3072 | } |
| 3073 | if (connect_server(t) == 0) |
| 3074 | return 0; /* no state changed */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3075 | } |
| 3076 | /* if conn_retries < 0 or other error, let's abort */ |
| 3077 | tv_eternity(&t->cnexpire); |
| 3078 | t->srv_state = SV_STCLOSE; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 3079 | t->logs.status = 503; |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 3080 | if (t->proxy->mode == PR_MODE_HTTP) |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 3081 | client_return(t, t->proxy->errmsg.len503, t->proxy->errmsg.msg503); |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3082 | if (!(t->flags & SN_ERR_MASK)) |
| 3083 | t->flags |= SN_ERR_SRVCL; |
| 3084 | if (!(t->flags & SN_FINST_MASK)) |
| 3085 | t->flags |= SN_FINST_C; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3086 | return 1; |
| 3087 | } |
| 3088 | else { /* no error or write 0 */ |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 3089 | t->logs.t_connect = tv_diff(&t->logs.tv_accept, &now); |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 3090 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3091 | //fprintf(stderr,"3: c=%d, s=%d\n", c, s); |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 3092 | if (req->l == 0) /* nothing to write */ { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3093 | FD_CLR(t->srv_fd, StaticWriteEvent); |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 3094 | tv_eternity(&t->swexpire); |
| 3095 | } else /* need the right to write */ { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3096 | FD_SET(t->srv_fd, StaticWriteEvent); |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 3097 | if (t->proxy->srvtimeout) { |
| 3098 | tv_delayfrom(&t->swexpire, &now, t->proxy->srvtimeout); |
| 3099 | /* FIXME: to avoid the server to read-time-out during writes, we refresh it */ |
| 3100 | t->srexpire = t->swexpire; |
| 3101 | } |
| 3102 | else |
| 3103 | tv_eternity(&t->swexpire); |
| 3104 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3105 | |
| 3106 | if (t->proxy->mode == PR_MODE_TCP) { /* let's allow immediate data connection in this case */ |
| 3107 | FD_SET(t->srv_fd, StaticReadEvent); |
| 3108 | if (t->proxy->srvtimeout) |
| 3109 | tv_delayfrom(&t->srexpire, &now, t->proxy->srvtimeout); |
| 3110 | else |
| 3111 | tv_eternity(&t->srexpire); |
| 3112 | |
| 3113 | t->srv_state = SV_STDATA; |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 3114 | rep->rlim = rep->data + BUFSIZE; /* no rewrite needed */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3115 | } |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 3116 | else { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3117 | t->srv_state = SV_STHEADERS; |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 3118 | rep->rlim = rep->data + BUFSIZE - MAXREWRITE; /* rewrite needed */ |
| 3119 | } |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3120 | tv_eternity(&t->cnexpire); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3121 | return 1; |
| 3122 | } |
| 3123 | } |
| 3124 | else if (s == SV_STHEADERS) { /* receiving server headers */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3125 | /* now parse the partial (or complete) headers */ |
| 3126 | while (rep->lr < rep->r) { /* this loop only sees one header at each iteration */ |
| 3127 | char *ptr; |
| 3128 | int delete_header; |
| 3129 | |
| 3130 | ptr = rep->lr; |
| 3131 | |
| 3132 | /* look for the end of the current header */ |
| 3133 | while (ptr < rep->r && *ptr != '\n' && *ptr != '\r') |
| 3134 | ptr++; |
| 3135 | |
| 3136 | if (ptr == rep->h) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3137 | int line, len; |
| 3138 | |
| 3139 | /* we can only get here after an end of headers */ |
| 3140 | /* we'll have something else to do here : add new headers ... */ |
| 3141 | |
willy tarreau | cd87894 | 2005-12-17 13:27:43 +0100 | [diff] [blame] | 3142 | if ((t->srv) && !(t->flags & SN_DIRECT) && (t->proxy->options & PR_O_COOK_INS) && |
| 3143 | (!(t->proxy->options & PR_O_COOK_POST) || (t->flags & SN_POST))) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3144 | /* the server is known, it's not the one the client requested, we have to |
willy tarreau | cd87894 | 2005-12-17 13:27:43 +0100 | [diff] [blame] | 3145 | * insert a set-cookie here, except if we want to insert only on POST |
| 3146 | * requests and this one isn't. |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3147 | */ |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 3148 | len = sprintf(trash, "Set-Cookie: %s=%s; path=/\r\n", |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 3149 | t->proxy->cookie_name, |
| 3150 | t->srv->cookie ? t->srv->cookie : ""); |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 3151 | |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3152 | t->flags |= SN_SCK_INSERTED; |
| 3153 | |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 3154 | /* Here, we will tell an eventual cache on the client side that we don't |
| 3155 | * want it to cache this reply because HTTP/1.0 caches also cache cookies ! |
| 3156 | * Some caches understand the correct form: 'no-cache="set-cookie"', but |
| 3157 | * others don't (eg: apache <= 1.3.26). So we use 'private' instead. |
| 3158 | */ |
willy tarreau | 240afa6 | 2005-12-17 13:14:35 +0100 | [diff] [blame] | 3159 | if (t->proxy->options & PR_O_COOK_NOC) |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 3160 | //len += sprintf(newhdr + len, "Cache-control: no-cache=\"set-cookie\"\r\n"); |
| 3161 | len += sprintf(trash + len, "Cache-control: private\r\n"); |
willy tarreau | cd87894 | 2005-12-17 13:27:43 +0100 | [diff] [blame] | 3162 | |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 3163 | buffer_replace2(rep, rep->h, rep->h, trash, len); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3164 | } |
| 3165 | |
| 3166 | /* headers to be added */ |
| 3167 | for (line = 0; line < t->proxy->nb_rspadd; line++) { |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 3168 | len = sprintf(trash, "%s\r\n", t->proxy->rsp_add[line]); |
| 3169 | buffer_replace2(rep, rep->h, rep->h, trash, len); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3170 | } |
| 3171 | |
| 3172 | t->srv_state = SV_STDATA; |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 3173 | rep->rlim = rep->data + BUFSIZE; /* no more rewrite needed */ |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 3174 | t->logs.t_data = tv_diff(&t->logs.tv_accept, &now); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3175 | break; |
| 3176 | } |
| 3177 | |
| 3178 | /* to get a complete header line, we need the ending \r\n, \n\r, \r or \n too */ |
| 3179 | if (ptr > rep->r - 2) { |
| 3180 | /* this is a partial header, let's wait for more to come */ |
| 3181 | rep->lr = ptr; |
| 3182 | break; |
| 3183 | } |
| 3184 | |
| 3185 | // fprintf(stderr,"h=%p, ptr=%p, lr=%p, r=%p, *h=", rep->h, ptr, rep->lr, rep->r); |
| 3186 | // write(2, rep->h, ptr - rep->h); fprintf(stderr,"\n"); |
| 3187 | |
| 3188 | /* now we know that *ptr is either \r or \n, |
| 3189 | * and that there are at least 1 char after it. |
| 3190 | */ |
| 3191 | if ((ptr[0] == ptr[1]) || (ptr[1] != '\r' && ptr[1] != '\n')) |
| 3192 | rep->lr = ptr + 1; /* \r\r, \n\n, \r[^\n], \n[^\r] */ |
| 3193 | else |
| 3194 | rep->lr = ptr + 2; /* \r\n or \n\r */ |
| 3195 | |
| 3196 | /* |
| 3197 | * now we know that we have a full header ; we can do whatever |
| 3198 | * we want with these pointers : |
| 3199 | * rep->h = beginning of header |
| 3200 | * ptr = end of header (first \r or \n) |
| 3201 | * rep->lr = beginning of next line (next rep->h) |
| 3202 | * rep->r = end of data (not used at this stage) |
| 3203 | */ |
| 3204 | |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 3205 | |
| 3206 | if (t->logs.logwait & LW_RESP) { |
| 3207 | t->logs.logwait &= ~LW_RESP; |
| 3208 | t->logs.status = atoi(rep->h + 9); |
| 3209 | } |
| 3210 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3211 | delete_header = 0; |
| 3212 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 3213 | if ((global.mode & MODE_DEBUG) && !(global.mode & MODE_QUIET)) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3214 | int len, max; |
willy tarreau | 2f6ba65 | 2005-12-17 13:57:42 +0100 | [diff] [blame] | 3215 | len = sprintf(trash, "%08x:%s.srvhdr[%04x:%04x]: ", t->uniq_id, t->proxy->id, (unsigned short)t->cli_fd, (unsigned short)t->srv_fd); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3216 | max = ptr - rep->h; |
| 3217 | UBOUND(max, sizeof(trash) - len - 1); |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 3218 | len += strlcpy2(trash + len, rep->h, max + 1); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3219 | trash[len++] = '\n'; |
| 3220 | write(1, trash, len); |
| 3221 | } |
| 3222 | |
| 3223 | /* try headers regexps */ |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 3224 | if (t->proxy->rsp_exp != NULL && !(t->flags & SN_SVDENY)) { |
| 3225 | struct hdr_exp *exp; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3226 | char term; |
| 3227 | |
| 3228 | term = *ptr; |
| 3229 | *ptr = '\0'; |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 3230 | exp = t->proxy->rsp_exp; |
| 3231 | do { |
| 3232 | if (regexec(exp->preg, rep->h, MAX_MATCH, pmatch, 0) == 0) { |
| 3233 | switch (exp->action) { |
| 3234 | case ACT_ALLOW: |
| 3235 | if (!(t->flags & SN_SVDENY)) |
| 3236 | t->flags |= SN_SVALLOW; |
| 3237 | break; |
| 3238 | case ACT_REPLACE: |
| 3239 | if (!(t->flags & SN_SVDENY)) { |
| 3240 | int len = exp_replace(trash, rep->h, exp->replace, pmatch); |
| 3241 | ptr += buffer_replace2(rep, rep->h, ptr, trash, len); |
| 3242 | } |
| 3243 | break; |
| 3244 | case ACT_REMOVE: |
| 3245 | if (!(t->flags & SN_SVDENY)) |
| 3246 | delete_header = 1; |
| 3247 | break; |
| 3248 | case ACT_DENY: |
| 3249 | if (!(t->flags & SN_SVALLOW)) |
| 3250 | t->flags |= SN_SVDENY; |
| 3251 | break; |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3252 | case ACT_PASS: /* we simply don't deny this one */ |
| 3253 | break; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3254 | } |
| 3255 | break; |
| 3256 | } |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 3257 | } while ((exp = exp->next) != NULL); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3258 | *ptr = term; /* restore the string terminator */ |
| 3259 | } |
| 3260 | |
| 3261 | /* check for server cookies */ |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 3262 | if (!delete_header /*&& (t->proxy->options & PR_O_COOK_ANY)*/ |
| 3263 | && (t->proxy->cookie_name != NULL || t->proxy->capture_name != NULL) |
| 3264 | && (ptr >= rep->h + 12) |
willy tarreau | 906b268 | 2005-12-17 13:49:52 +0100 | [diff] [blame] | 3265 | && (strncasecmp(rep->h, "Set-Cookie: ", 12) == 0)) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3266 | char *p1, *p2, *p3, *p4; |
| 3267 | |
| 3268 | p1 = rep->h + 12; /* first char after 'Set-Cookie: ' */ |
| 3269 | |
| 3270 | while (p1 < ptr) { /* in fact, we'll break after the first cookie */ |
willy tarreau | c29948c | 2005-12-17 13:10:27 +0100 | [diff] [blame] | 3271 | while (p1 < ptr && (isspace((int)*p1))) |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3272 | p1++; |
| 3273 | |
| 3274 | if (p1 == ptr || *p1 == ';') /* end of cookie */ |
| 3275 | break; |
| 3276 | |
| 3277 | /* p1 is at the beginning of the cookie name */ |
| 3278 | p2 = p1; |
| 3279 | |
| 3280 | while (p2 < ptr && *p2 != '=' && *p2 != ';') |
| 3281 | p2++; |
| 3282 | |
| 3283 | if (p2 == ptr || *p2 == ';') /* next cookie */ |
| 3284 | break; |
| 3285 | |
| 3286 | p3 = p2 + 1; /* skips the '=' sign */ |
| 3287 | if (p3 == ptr) |
| 3288 | break; |
| 3289 | |
| 3290 | p4 = p3; |
willy tarreau | c29948c | 2005-12-17 13:10:27 +0100 | [diff] [blame] | 3291 | while (p4 < ptr && !isspace((int)*p4) && *p4 != ';') |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3292 | p4++; |
| 3293 | |
| 3294 | /* here, we have the cookie name between p1 and p2, |
| 3295 | * and its value between p3 and p4. |
| 3296 | * we can process it. |
| 3297 | */ |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 3298 | |
| 3299 | /* first, let's see if we want to capture it */ |
| 3300 | if (t->proxy->capture_name != NULL && |
| 3301 | t->logs.srv_cookie == NULL && |
| 3302 | (p4 - p1 >= t->proxy->capture_namelen) && |
| 3303 | memcmp(p1, t->proxy->capture_name, t->proxy->capture_namelen) == 0) { |
| 3304 | int log_len = p4 - p1; |
| 3305 | |
| 3306 | if ((t->logs.srv_cookie = pool_alloc(capture)) == NULL) { |
| 3307 | Alert("HTTP logging : out of memory.\n"); |
| 3308 | } |
| 3309 | |
| 3310 | if (log_len > t->proxy->capture_len) |
| 3311 | log_len = t->proxy->capture_len; |
| 3312 | memcpy(t->logs.srv_cookie, p1, log_len); |
| 3313 | t->logs.srv_cookie[log_len] = 0; |
| 3314 | } |
| 3315 | |
| 3316 | if ((p2 - p1 == t->proxy->cookie_len) && (t->proxy->cookie_name != NULL) && |
| 3317 | (memcmp(p1, t->proxy->cookie_name, p2 - p1) == 0)) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3318 | /* Cool... it's the right one */ |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3319 | t->flags |= SN_SCK_SEEN; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3320 | |
| 3321 | /* If the cookie is in insert mode on a known server, we'll delete |
| 3322 | * this occurrence because we'll insert another one later. |
| 3323 | * We'll delete it too if the "indirect" option is set and we're in |
| 3324 | * a direct access. */ |
| 3325 | if (((t->srv) && (t->proxy->options & PR_O_COOK_INS)) || |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 3326 | ((t->flags & SN_DIRECT) && (t->proxy->options & PR_O_COOK_IND))) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3327 | /* this header must be deleted */ |
| 3328 | delete_header = 1; |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3329 | t->flags |= SN_SCK_DELETED; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3330 | } |
| 3331 | else if ((t->srv) && (t->proxy->options & PR_O_COOK_RW)) { |
| 3332 | /* replace bytes p3->p4 with the cookie name associated |
| 3333 | * with this server since we know it. |
| 3334 | */ |
| 3335 | buffer_replace2(rep, p3, p4, t->srv->cookie, t->srv->cklen); |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3336 | t->flags |= SN_SCK_INSERTED | SN_SCK_DELETED; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3337 | } |
| 3338 | break; |
| 3339 | } |
| 3340 | else { |
| 3341 | // fprintf(stderr,"Ignoring unknown cookie : "); |
| 3342 | // write(2, p1, p2-p1); |
| 3343 | // fprintf(stderr," = "); |
| 3344 | // write(2, p3, p4-p3); |
| 3345 | // fprintf(stderr,"\n"); |
| 3346 | } |
| 3347 | break; /* we don't want to loop again since there cannot be another cookie on the same line */ |
| 3348 | } /* we're now at the end of the cookie value */ |
| 3349 | } /* end of cookie processing */ |
| 3350 | |
| 3351 | /* let's look if we have to delete this header */ |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 3352 | if (delete_header && !(t->flags & SN_SVDENY)) |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3353 | buffer_replace2(rep, rep->h, rep->lr, "", 0); |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 3354 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3355 | rep->h = rep->lr; |
| 3356 | } /* while (rep->lr < rep->r) */ |
| 3357 | |
| 3358 | /* end of header processing (even if incomplete) */ |
| 3359 | |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 3360 | if ((rep->l < rep->rlim - rep->data) && ! FD_ISSET(t->srv_fd, StaticReadEvent)) { |
| 3361 | /* fd in StaticReadEvent was disabled, perhaps because of a previous buffer |
| 3362 | * full. We cannot loop here since event_srv_read will disable it only if |
| 3363 | * rep->l == rlim-data |
| 3364 | */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3365 | FD_SET(t->srv_fd, StaticReadEvent); |
| 3366 | if (t->proxy->srvtimeout) |
| 3367 | tv_delayfrom(&t->srexpire, &now, t->proxy->srvtimeout); |
| 3368 | else |
| 3369 | tv_eternity(&t->srexpire); |
| 3370 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3371 | |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 3372 | /* read error, write error */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3373 | if (t->res_sw == RES_ERROR || t->res_sr == RES_ERROR) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3374 | tv_eternity(&t->srexpire); |
| 3375 | tv_eternity(&t->swexpire); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3376 | fd_delete(t->srv_fd); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3377 | t->srv_state = SV_STCLOSE; |
willy tarreau | cd87894 | 2005-12-17 13:27:43 +0100 | [diff] [blame] | 3378 | t->logs.status = 502; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 3379 | client_return(t, t->proxy->errmsg.len502, t->proxy->errmsg.msg502); |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3380 | if (!(t->flags & SN_ERR_MASK)) |
| 3381 | t->flags |= SN_ERR_SRVCL; |
| 3382 | if (!(t->flags & SN_FINST_MASK)) |
| 3383 | t->flags |= SN_FINST_H; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3384 | return 1; |
| 3385 | } |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 3386 | /* end of client write or end of server read. |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 3387 | * since we are in header mode, if there's no space left for headers, we |
| 3388 | * won't be able to free more later, so the session will never terminate. |
| 3389 | */ |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 3390 | else if (t->res_sr == RES_NULL || c == CL_STSHUTW || c == CL_STCLOSE || rep->l >= rep->rlim - rep->data) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3391 | FD_CLR(t->srv_fd, StaticReadEvent); |
| 3392 | tv_eternity(&t->srexpire); |
| 3393 | shutdown(t->srv_fd, SHUT_RD); |
| 3394 | t->srv_state = SV_STSHUTR; |
| 3395 | return 1; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 3396 | } |
| 3397 | /* read timeout : return a 504 to the client. |
| 3398 | */ |
| 3399 | else if (FD_ISSET(t->srv_fd, StaticReadEvent) && tv_cmp2_ms(&t->srexpire, &now) <= 0) { |
| 3400 | tv_eternity(&t->srexpire); |
| 3401 | tv_eternity(&t->swexpire); |
| 3402 | fd_delete(t->srv_fd); |
| 3403 | t->srv_state = SV_STCLOSE; |
| 3404 | t->logs.status = 504; |
| 3405 | client_return(t, t->proxy->errmsg.len504, t->proxy->errmsg.msg504); |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3406 | if (!(t->flags & SN_ERR_MASK)) |
| 3407 | t->flags |= SN_ERR_SRVTO; |
| 3408 | if (!(t->flags & SN_FINST_MASK)) |
| 3409 | t->flags |= SN_FINST_H; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 3410 | return 1; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3411 | |
| 3412 | } |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3413 | /* last client read and buffer empty */ |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 3414 | /* FIXME!!! here, we don't want to switch to SHUTW if the |
| 3415 | * client shuts read too early, because we may still have |
| 3416 | * some work to do on the headers. |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3417 | * The side-effect is that if the client completely closes its |
| 3418 | * connection during SV_STHEADER, the connection to the server |
| 3419 | * is kept until a response comes back or the timeout is reached. |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 3420 | */ |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3421 | else if ((/*c == CL_STSHUTR ||*/ c == CL_STCLOSE) && (req->l == 0)) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3422 | FD_CLR(t->srv_fd, StaticWriteEvent); |
| 3423 | tv_eternity(&t->swexpire); |
| 3424 | shutdown(t->srv_fd, SHUT_WR); |
| 3425 | t->srv_state = SV_STSHUTW; |
| 3426 | return 1; |
| 3427 | } |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3428 | /* write timeout */ |
| 3429 | /* FIXME!!! here, we don't want to switch to SHUTW if the |
| 3430 | * client shuts read too early, because we may still have |
| 3431 | * some work to do on the headers. |
| 3432 | */ |
| 3433 | else if (FD_ISSET(t->srv_fd, StaticWriteEvent) && tv_cmp2_ms(&t->swexpire, &now) <= 0) { |
| 3434 | FD_CLR(t->srv_fd, StaticWriteEvent); |
| 3435 | tv_eternity(&t->swexpire); |
| 3436 | shutdown(t->srv_fd, SHUT_WR); |
| 3437 | t->srv_state = SV_STSHUTW; |
| 3438 | if (!(t->flags & SN_ERR_MASK)) |
| 3439 | t->flags |= SN_ERR_SRVTO; |
| 3440 | if (!(t->flags & SN_FINST_MASK)) |
| 3441 | t->flags |= SN_FINST_H; |
| 3442 | return 1; |
| 3443 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3444 | |
| 3445 | if (req->l == 0) { |
| 3446 | if (FD_ISSET(t->srv_fd, StaticWriteEvent)) { |
| 3447 | FD_CLR(t->srv_fd, StaticWriteEvent); /* stop writing */ |
| 3448 | tv_eternity(&t->swexpire); |
| 3449 | } |
| 3450 | } |
| 3451 | else { /* client buffer not empty */ |
| 3452 | if (! FD_ISSET(t->srv_fd, StaticWriteEvent)) { |
| 3453 | FD_SET(t->srv_fd, StaticWriteEvent); /* restart writing */ |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 3454 | if (t->proxy->srvtimeout) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3455 | tv_delayfrom(&t->swexpire, &now, t->proxy->srvtimeout); |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 3456 | /* FIXME: to avoid the server to read-time-out during writes, we refresh it */ |
| 3457 | t->srexpire = t->swexpire; |
| 3458 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3459 | else |
| 3460 | tv_eternity(&t->swexpire); |
| 3461 | } |
| 3462 | } |
| 3463 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3464 | /* be nice with the client side which would like to send a complete header |
| 3465 | * FIXME: COMPLETELY BUGGY !!! not all headers may be processed because the client |
| 3466 | * would read all remaining data at once ! The client should not write past rep->lr |
| 3467 | * when the server is in header state. |
| 3468 | */ |
| 3469 | //return header_processed; |
| 3470 | return t->srv_state != SV_STHEADERS; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3471 | } |
| 3472 | else if (s == SV_STDATA) { |
| 3473 | /* read or write error */ |
| 3474 | if (t->res_sw == RES_ERROR || t->res_sr == RES_ERROR) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3475 | tv_eternity(&t->srexpire); |
| 3476 | tv_eternity(&t->swexpire); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3477 | fd_delete(t->srv_fd); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3478 | t->srv_state = SV_STCLOSE; |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3479 | if (!(t->flags & SN_ERR_MASK)) |
| 3480 | t->flags |= SN_ERR_SRVCL; |
| 3481 | if (!(t->flags & SN_FINST_MASK)) |
| 3482 | t->flags |= SN_FINST_D; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3483 | return 1; |
| 3484 | } |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3485 | /* last read, or end of client write */ |
| 3486 | else if (t->res_sr == RES_NULL || c == CL_STSHUTW || c == CL_STCLOSE) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3487 | FD_CLR(t->srv_fd, StaticReadEvent); |
| 3488 | tv_eternity(&t->srexpire); |
| 3489 | shutdown(t->srv_fd, SHUT_RD); |
| 3490 | t->srv_state = SV_STSHUTR; |
| 3491 | return 1; |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 3492 | } |
| 3493 | /* end of client read and no more data to send */ |
| 3494 | else if ((c == CL_STSHUTR || c == CL_STCLOSE) && (req->l == 0)) { |
| 3495 | FD_CLR(t->srv_fd, StaticWriteEvent); |
| 3496 | tv_eternity(&t->swexpire); |
| 3497 | shutdown(t->srv_fd, SHUT_WR); |
| 3498 | t->srv_state = SV_STSHUTW; |
| 3499 | return 1; |
| 3500 | } |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3501 | /* read timeout */ |
| 3502 | else if (tv_cmp2_ms(&t->srexpire, &now) <= 0) { |
| 3503 | FD_CLR(t->srv_fd, StaticReadEvent); |
| 3504 | tv_eternity(&t->srexpire); |
| 3505 | shutdown(t->srv_fd, SHUT_RD); |
| 3506 | t->srv_state = SV_STSHUTR; |
| 3507 | if (!(t->flags & SN_ERR_MASK)) |
| 3508 | t->flags |= SN_ERR_SRVTO; |
| 3509 | if (!(t->flags & SN_FINST_MASK)) |
| 3510 | t->flags |= SN_FINST_D; |
| 3511 | return 1; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3512 | } |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3513 | /* write timeout */ |
| 3514 | else if (tv_cmp2_ms(&t->swexpire, &now) <= 0) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3515 | FD_CLR(t->srv_fd, StaticWriteEvent); |
| 3516 | tv_eternity(&t->swexpire); |
| 3517 | shutdown(t->srv_fd, SHUT_WR); |
| 3518 | t->srv_state = SV_STSHUTW; |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3519 | if (!(t->flags & SN_ERR_MASK)) |
| 3520 | t->flags |= SN_ERR_SRVTO; |
| 3521 | if (!(t->flags & SN_FINST_MASK)) |
| 3522 | t->flags |= SN_FINST_D; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3523 | return 1; |
| 3524 | } |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 3525 | |
| 3526 | /* recompute request time-outs */ |
| 3527 | if (req->l == 0) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3528 | if (FD_ISSET(t->srv_fd, StaticWriteEvent)) { |
| 3529 | FD_CLR(t->srv_fd, StaticWriteEvent); /* stop writing */ |
| 3530 | tv_eternity(&t->swexpire); |
| 3531 | } |
| 3532 | } |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 3533 | else { /* buffer not empty, there are still data to be transferred */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3534 | if (! FD_ISSET(t->srv_fd, StaticWriteEvent)) { |
| 3535 | FD_SET(t->srv_fd, StaticWriteEvent); /* restart writing */ |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 3536 | if (t->proxy->srvtimeout) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3537 | tv_delayfrom(&t->swexpire, &now, t->proxy->srvtimeout); |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 3538 | /* FIXME: to avoid the server to read-time-out during writes, we refresh it */ |
| 3539 | t->srexpire = t->swexpire; |
| 3540 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3541 | else |
| 3542 | tv_eternity(&t->swexpire); |
| 3543 | } |
| 3544 | } |
| 3545 | |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 3546 | /* recompute response time-outs */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3547 | if (rep->l == BUFSIZE) { /* no room to read more data */ |
| 3548 | if (FD_ISSET(t->srv_fd, StaticReadEvent)) { |
| 3549 | FD_CLR(t->srv_fd, StaticReadEvent); |
| 3550 | tv_eternity(&t->srexpire); |
| 3551 | } |
| 3552 | } |
| 3553 | else { |
| 3554 | if (! FD_ISSET(t->srv_fd, StaticReadEvent)) { |
| 3555 | FD_SET(t->srv_fd, StaticReadEvent); |
| 3556 | if (t->proxy->srvtimeout) |
| 3557 | tv_delayfrom(&t->srexpire, &now, t->proxy->srvtimeout); |
| 3558 | else |
| 3559 | tv_eternity(&t->srexpire); |
| 3560 | } |
| 3561 | } |
| 3562 | |
| 3563 | return 0; /* other cases change nothing */ |
| 3564 | } |
| 3565 | else if (s == SV_STSHUTR) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3566 | if (t->res_sw == RES_ERROR) { |
| 3567 | //FD_CLR(t->srv_fd, StaticWriteEvent); |
| 3568 | tv_eternity(&t->swexpire); |
| 3569 | fd_delete(t->srv_fd); |
| 3570 | //close(t->srv_fd); |
| 3571 | t->srv_state = SV_STCLOSE; |
| 3572 | if (!(t->flags & SN_ERR_MASK)) |
| 3573 | t->flags |= SN_ERR_SRVCL; |
| 3574 | if (!(t->flags & SN_FINST_MASK)) |
| 3575 | t->flags |= SN_FINST_D; |
| 3576 | return 1; |
| 3577 | } |
| 3578 | else if ((c == CL_STSHUTR || c == CL_STCLOSE) && (req->l == 0)) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3579 | //FD_CLR(t->srv_fd, StaticWriteEvent); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3580 | tv_eternity(&t->swexpire); |
| 3581 | fd_delete(t->srv_fd); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3582 | //close(t->srv_fd); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3583 | t->srv_state = SV_STCLOSE; |
| 3584 | return 1; |
| 3585 | } |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3586 | else if (tv_cmp2_ms(&t->swexpire, &now) <= 0) { |
| 3587 | //FD_CLR(t->srv_fd, StaticWriteEvent); |
| 3588 | tv_eternity(&t->swexpire); |
| 3589 | fd_delete(t->srv_fd); |
| 3590 | //close(t->srv_fd); |
| 3591 | t->srv_state = SV_STCLOSE; |
| 3592 | if (!(t->flags & SN_ERR_MASK)) |
| 3593 | t->flags |= SN_ERR_SRVTO; |
| 3594 | if (!(t->flags & SN_FINST_MASK)) |
| 3595 | t->flags |= SN_FINST_D; |
| 3596 | return 1; |
| 3597 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3598 | else if (req->l == 0) { |
| 3599 | if (FD_ISSET(t->srv_fd, StaticWriteEvent)) { |
| 3600 | FD_CLR(t->srv_fd, StaticWriteEvent); /* stop writing */ |
| 3601 | tv_eternity(&t->swexpire); |
| 3602 | } |
| 3603 | } |
| 3604 | else { /* buffer not empty */ |
| 3605 | if (! FD_ISSET(t->srv_fd, StaticWriteEvent)) { |
| 3606 | FD_SET(t->srv_fd, StaticWriteEvent); /* restart writing */ |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 3607 | if (t->proxy->srvtimeout) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3608 | tv_delayfrom(&t->swexpire, &now, t->proxy->srvtimeout); |
willy tarreau | b1ff9db | 2005-12-17 13:51:03 +0100 | [diff] [blame] | 3609 | /* FIXME: to avoid the server to read-time-out during writes, we refresh it */ |
| 3610 | t->srexpire = t->swexpire; |
| 3611 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3612 | else |
| 3613 | tv_eternity(&t->swexpire); |
| 3614 | } |
| 3615 | } |
| 3616 | return 0; |
| 3617 | } |
| 3618 | else if (s == SV_STSHUTW) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3619 | if (t->res_sr == RES_ERROR) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3620 | //FD_CLR(t->srv_fd, StaticReadEvent); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3621 | tv_eternity(&t->srexpire); |
| 3622 | fd_delete(t->srv_fd); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3623 | //close(t->srv_fd); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3624 | t->srv_state = SV_STCLOSE; |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3625 | if (!(t->flags & SN_ERR_MASK)) |
| 3626 | t->flags |= SN_ERR_SRVCL; |
| 3627 | if (!(t->flags & SN_FINST_MASK)) |
| 3628 | t->flags |= SN_FINST_D; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3629 | return 1; |
| 3630 | } |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3631 | else if (t->res_sr == RES_NULL || c == CL_STSHUTW || c == CL_STCLOSE) { |
| 3632 | //FD_CLR(t->srv_fd, StaticReadEvent); |
| 3633 | tv_eternity(&t->srexpire); |
| 3634 | fd_delete(t->srv_fd); |
| 3635 | //close(t->srv_fd); |
| 3636 | t->srv_state = SV_STCLOSE; |
| 3637 | return 1; |
| 3638 | } |
| 3639 | else if (tv_cmp2_ms(&t->srexpire, &now) <= 0) { |
| 3640 | //FD_CLR(t->srv_fd, StaticReadEvent); |
| 3641 | tv_eternity(&t->srexpire); |
| 3642 | fd_delete(t->srv_fd); |
| 3643 | //close(t->srv_fd); |
| 3644 | t->srv_state = SV_STCLOSE; |
| 3645 | if (!(t->flags & SN_ERR_MASK)) |
| 3646 | t->flags |= SN_ERR_SRVTO; |
| 3647 | if (!(t->flags & SN_FINST_MASK)) |
| 3648 | t->flags |= SN_FINST_D; |
| 3649 | return 1; |
| 3650 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3651 | else if (rep->l == BUFSIZE) { /* no room to read more data */ |
| 3652 | if (FD_ISSET(t->srv_fd, StaticReadEvent)) { |
| 3653 | FD_CLR(t->srv_fd, StaticReadEvent); |
| 3654 | tv_eternity(&t->srexpire); |
| 3655 | } |
| 3656 | } |
| 3657 | else { |
| 3658 | if (! FD_ISSET(t->srv_fd, StaticReadEvent)) { |
| 3659 | FD_SET(t->srv_fd, StaticReadEvent); |
| 3660 | if (t->proxy->srvtimeout) |
| 3661 | tv_delayfrom(&t->srexpire, &now, t->proxy->srvtimeout); |
| 3662 | else |
| 3663 | tv_eternity(&t->srexpire); |
| 3664 | } |
| 3665 | } |
| 3666 | return 0; |
| 3667 | } |
| 3668 | else { /* SV_STCLOSE : nothing to do */ |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 3669 | if ((global.mode & MODE_DEBUG) && !(global.mode & MODE_QUIET)) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3670 | int len; |
willy tarreau | 2f6ba65 | 2005-12-17 13:57:42 +0100 | [diff] [blame] | 3671 | len = sprintf(trash, "%08x:%s.srvcls[%04x:%04x]\n", t->uniq_id, t->proxy->id, (unsigned short)t->cli_fd, (unsigned short)t->srv_fd); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3672 | write(1, trash, len); |
| 3673 | } |
| 3674 | return 0; |
| 3675 | } |
| 3676 | return 0; |
| 3677 | } |
| 3678 | |
| 3679 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3680 | /* Processes the client and server jobs of a session task, then |
| 3681 | * puts it back to the wait queue in a clean state, or |
| 3682 | * cleans up its resources if it must be deleted. Returns |
| 3683 | * the time the task accepts to wait, or -1 for infinity |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3684 | */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3685 | int process_session(struct task *t) { |
| 3686 | struct session *s = t->context; |
| 3687 | int fsm_resync = 0; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3688 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3689 | do { |
| 3690 | fsm_resync = 0; |
| 3691 | //fprintf(stderr,"before_cli:cli=%d, srv=%d\n", t->cli_state, t->srv_state); |
| 3692 | fsm_resync |= process_cli(s); |
| 3693 | //fprintf(stderr,"cli/srv:cli=%d, srv=%d\n", t->cli_state, t->srv_state); |
| 3694 | fsm_resync |= process_srv(s); |
| 3695 | //fprintf(stderr,"after_srv:cli=%d, srv=%d\n", t->cli_state, t->srv_state); |
| 3696 | } while (fsm_resync); |
| 3697 | |
| 3698 | if (s->cli_state != CL_STCLOSE || s->srv_state != SV_STCLOSE) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3699 | struct timeval min1, min2; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3700 | s->res_cw = s->res_cr = s->res_sw = s->res_sr = RES_SILENT; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3701 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3702 | tv_min(&min1, &s->crexpire, &s->cwexpire); |
| 3703 | tv_min(&min2, &s->srexpire, &s->swexpire); |
| 3704 | tv_min(&min1, &min1, &s->cnexpire); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3705 | tv_min(&t->expire, &min1, &min2); |
| 3706 | |
| 3707 | /* restore t to its place in the task list */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3708 | task_queue(t); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3709 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3710 | return tv_remain(&now, &t->expire); /* nothing more to do */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3711 | } |
| 3712 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3713 | s->proxy->nbconn--; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3714 | actconn--; |
| 3715 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 3716 | if ((global.mode & MODE_DEBUG) && !(global.mode & MODE_QUIET)) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3717 | int len; |
willy tarreau | 2f6ba65 | 2005-12-17 13:57:42 +0100 | [diff] [blame] | 3718 | len = sprintf(trash, "%08x:%s.closed[%04x:%04x]\n", s->uniq_id, s->proxy->id, (unsigned short)s->cli_fd, (unsigned short)s->srv_fd); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3719 | write(1, trash, len); |
| 3720 | } |
| 3721 | |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 3722 | s->logs.t_close = tv_diff(&s->logs.tv_accept, &now); |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 3723 | if (s->rep != NULL) |
| 3724 | s->logs.bytes = s->rep->total; |
| 3725 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 3726 | /* let's do a final log if we need it */ |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 3727 | if (s->logs.logwait && (!(s->proxy->options & PR_O_NULLNOLOG) || s->req->total)) |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 3728 | sess_log(s); |
| 3729 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3730 | /* the task MUST not be in the run queue anymore */ |
| 3731 | task_delete(t); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3732 | session_free(s); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3733 | task_free(t); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3734 | return -1; /* rest in peace for eternity */ |
| 3735 | } |
| 3736 | |
| 3737 | |
| 3738 | |
| 3739 | /* |
| 3740 | * manages a server health-check. Returns |
| 3741 | * the time the task accepts to wait, or -1 for infinity. |
| 3742 | */ |
| 3743 | int process_chk(struct task *t) { |
| 3744 | struct server *s = t->context; |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 3745 | struct sockaddr_in sa; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3746 | int fd = s->curfd; |
| 3747 | int one = 1; |
| 3748 | |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 3749 | //fprintf(stderr, "process_chk: task=%p\n", t); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3750 | |
| 3751 | if (fd < 0) { /* no check currently running */ |
| 3752 | //fprintf(stderr, "process_chk: 2\n"); |
| 3753 | if (tv_cmp2_ms(&t->expire, &now) > 0) { /* not good time yet */ |
| 3754 | task_queue(t); /* restore t to its place in the task list */ |
| 3755 | return tv_remain(&now, &t->expire); |
| 3756 | } |
| 3757 | |
| 3758 | /* we'll initiate a new check */ |
| 3759 | s->result = 0; /* no result yet */ |
| 3760 | if ((fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) != -1) { |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 3761 | if ((fd < global.maxsock) && |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3762 | (fcntl(fd, F_SETFL, O_NONBLOCK) != -1) && |
| 3763 | (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *) &one, sizeof(one)) != -1)) { |
| 3764 | //fprintf(stderr, "process_chk: 3\n"); |
| 3765 | |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 3766 | /* we'll connect to the check port on the server */ |
| 3767 | sa = s->addr; |
| 3768 | sa.sin_port = htons(s->check_port); |
| 3769 | |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 3770 | /* allow specific binding */ |
| 3771 | if (s->proxy->options & PR_O_BIND_SRC && |
| 3772 | bind(fd, (struct sockaddr *)&s->proxy->source_addr, sizeof(s->proxy->source_addr)) == -1) { |
| 3773 | Alert("Cannot bind to source address before connect() for proxy %s. Aborting.\n", s->proxy->id); |
| 3774 | close(fd); |
| 3775 | s->result = -1; |
| 3776 | } |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 3777 | else if ((connect(fd, (struct sockaddr *)&sa, sizeof(sa)) != -1) || (errno == EINPROGRESS)) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3778 | /* OK, connection in progress or established */ |
| 3779 | |
| 3780 | //fprintf(stderr, "process_chk: 4\n"); |
| 3781 | |
| 3782 | s->curfd = fd; /* that's how we know a test is in progress ;-) */ |
| 3783 | fdtab[fd].owner = t; |
willy tarreau | bc4e1fb | 2005-12-17 13:32:07 +0100 | [diff] [blame] | 3784 | fdtab[fd].read = &event_srv_chk_r; |
| 3785 | fdtab[fd].write = &event_srv_chk_w; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3786 | fdtab[fd].state = FD_STCONN; /* connection in progress */ |
| 3787 | FD_SET(fd, StaticWriteEvent); /* for connect status */ |
| 3788 | fd_insert(fd); |
willy tarreau | e47c8d7 | 2005-12-17 12:55:52 +0100 | [diff] [blame] | 3789 | /* FIXME: we allow up to <inter> for a connection to establish, but we should use another parameter */ |
| 3790 | tv_delayfrom(&t->expire, &now, s->inter); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3791 | task_queue(t); /* restore t to its place in the task list */ |
| 3792 | return tv_remain(&now, &t->expire); |
| 3793 | } |
| 3794 | else if (errno != EALREADY && errno != EISCONN && errno != EAGAIN) { |
| 3795 | s->result = -1; /* a real error */ |
| 3796 | } |
| 3797 | } |
| 3798 | //fprintf(stderr, "process_chk: 5\n"); |
| 3799 | close(fd); |
| 3800 | } |
| 3801 | |
| 3802 | if (!s->result) { /* nothing done */ |
| 3803 | //fprintf(stderr, "process_chk: 6\n"); |
willy tarreau | e47c8d7 | 2005-12-17 12:55:52 +0100 | [diff] [blame] | 3804 | tv_delayfrom(&t->expire, &now, s->inter); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3805 | task_queue(t); /* restore t to its place in the task list */ |
| 3806 | return tv_remain(&now, &t->expire); |
| 3807 | } |
| 3808 | |
| 3809 | /* here, we have seen a failure */ |
willy tarreau | e47c8d7 | 2005-12-17 12:55:52 +0100 | [diff] [blame] | 3810 | if (s->health > s->rise) |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3811 | s->health--; /* still good */ |
| 3812 | else { |
willy tarreau | 535ae7a | 2005-12-17 12:58:00 +0100 | [diff] [blame] | 3813 | if (s->health == s->rise) { |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 3814 | if (!(global.mode & MODE_QUIET)) |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 3815 | Warning("server %s/%s DOWN.\n", s->proxy->id, s->id); |
willy tarreau | 535ae7a | 2005-12-17 12:58:00 +0100 | [diff] [blame] | 3816 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 3817 | send_log(s->proxy, LOG_ALERT, "Server %s/%s is DOWN.\n", s->proxy->id, s->id); |
willy tarreau | 535ae7a | 2005-12-17 12:58:00 +0100 | [diff] [blame] | 3818 | } |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 3819 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3820 | s->health = 0; /* failure */ |
| 3821 | s->state &= ~SRV_RUNNING; |
| 3822 | } |
| 3823 | |
| 3824 | //fprintf(stderr, "process_chk: 7\n"); |
willy tarreau | e47c8d7 | 2005-12-17 12:55:52 +0100 | [diff] [blame] | 3825 | /* FIXME: we allow up to <inter> for a connection to establish, but we should use another parameter */ |
| 3826 | tv_delayfrom(&t->expire, &now, s->inter); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3827 | } |
| 3828 | else { |
| 3829 | //fprintf(stderr, "process_chk: 8\n"); |
| 3830 | /* there was a test running */ |
| 3831 | if (s->result > 0) { /* good server detected */ |
| 3832 | //fprintf(stderr, "process_chk: 9\n"); |
| 3833 | s->health++; /* was bad, stays for a while */ |
willy tarreau | e47c8d7 | 2005-12-17 12:55:52 +0100 | [diff] [blame] | 3834 | if (s->health >= s->rise) { |
willy tarreau | 535ae7a | 2005-12-17 12:58:00 +0100 | [diff] [blame] | 3835 | if (s->health == s->rise) { |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 3836 | if (!(global.mode & MODE_QUIET)) |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 3837 | Warning("server %s/%s UP.\n", s->proxy->id, s->id); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 3838 | send_log(s->proxy, LOG_NOTICE, "Server %s/%s is UP.\n", s->proxy->id, s->id); |
willy tarreau | 535ae7a | 2005-12-17 12:58:00 +0100 | [diff] [blame] | 3839 | } |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 3840 | |
willy tarreau | e47c8d7 | 2005-12-17 12:55:52 +0100 | [diff] [blame] | 3841 | s->health = s->rise + s->fall - 1; /* OK now */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3842 | s->state |= SRV_RUNNING; |
| 3843 | } |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 3844 | s->curfd = -1; /* no check running anymore */ |
| 3845 | //FD_CLR(fd, StaticWriteEvent); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3846 | fd_delete(fd); |
willy tarreau | e47c8d7 | 2005-12-17 12:55:52 +0100 | [diff] [blame] | 3847 | tv_delayfrom(&t->expire, &now, s->inter); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3848 | } |
| 3849 | else if (s->result < 0 || tv_cmp2_ms(&t->expire, &now) <= 0) { |
| 3850 | //fprintf(stderr, "process_chk: 10\n"); |
| 3851 | /* failure or timeout detected */ |
willy tarreau | e47c8d7 | 2005-12-17 12:55:52 +0100 | [diff] [blame] | 3852 | if (s->health > s->rise) |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3853 | s->health--; /* still good */ |
| 3854 | else { |
willy tarreau | 535ae7a | 2005-12-17 12:58:00 +0100 | [diff] [blame] | 3855 | if (s->health == s->rise) { |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 3856 | if (!(global.mode & MODE_QUIET)) |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 3857 | Warning("server %s/%s DOWN.\n", s->proxy->id, s->id); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 3858 | |
| 3859 | send_log(s->proxy, LOG_ALERT, "Server %s/%s is DOWN.\n", s->proxy->id, s->id); |
willy tarreau | 535ae7a | 2005-12-17 12:58:00 +0100 | [diff] [blame] | 3860 | } |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 3861 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3862 | s->health = 0; /* failure */ |
| 3863 | s->state &= ~SRV_RUNNING; |
| 3864 | } |
| 3865 | s->curfd = -1; |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 3866 | //FD_CLR(fd, StaticWriteEvent); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3867 | fd_delete(fd); |
willy tarreau | e47c8d7 | 2005-12-17 12:55:52 +0100 | [diff] [blame] | 3868 | tv_delayfrom(&t->expire, &now, s->inter); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3869 | } |
| 3870 | /* if result is 0 and there's no timeout, we have to wait again */ |
| 3871 | } |
| 3872 | //fprintf(stderr, "process_chk: 11\n"); |
| 3873 | s->result = 0; |
| 3874 | task_queue(t); /* restore t to its place in the task list */ |
| 3875 | return tv_remain(&now, &t->expire); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3876 | } |
| 3877 | |
| 3878 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3879 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3880 | #if STATTIME > 0 |
| 3881 | int stats(void); |
| 3882 | #endif |
| 3883 | |
| 3884 | /* |
| 3885 | * Main select() loop. |
| 3886 | */ |
| 3887 | |
| 3888 | void select_loop() { |
| 3889 | int next_time; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3890 | int time2; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3891 | int status; |
| 3892 | int fd,i; |
| 3893 | struct timeval delta; |
| 3894 | int readnotnull, writenotnull; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3895 | struct task *t, *tnext; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3896 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3897 | tv_now(&now); |
| 3898 | |
| 3899 | while (1) { |
| 3900 | next_time = -1; /* set the timer to wait eternally first */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3901 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3902 | /* look for expired tasks and add them to the run queue. |
| 3903 | */ |
| 3904 | tnext = ((struct task *)LIST_HEAD(wait_queue))->next; |
| 3905 | while ((t = tnext) != LIST_HEAD(wait_queue)) { /* we haven't looped ? */ |
| 3906 | tnext = t->next; |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 3907 | if (t->state & TASK_RUNNING) |
| 3908 | continue; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3909 | |
| 3910 | /* wakeup expired entries. It doesn't matter if they are |
| 3911 | * already running because of a previous event |
| 3912 | */ |
| 3913 | if (tv_cmp2_ms(&t->expire, &now) <= 0) { |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 3914 | //fprintf(stderr,"task_wakeup(%p, %p)\n", &rq, t); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3915 | task_wakeup(&rq, t); |
| 3916 | } |
| 3917 | else { |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 3918 | /* first non-runnable task. Use its expiration date as an upper bound */ |
| 3919 | int temp_time = tv_remain(&now, &t->expire); |
| 3920 | if (temp_time) |
| 3921 | next_time = temp_time; |
| 3922 | //fprintf(stderr,"no_task_wakeup(%p, %p) : expire in %d ms\n", &rq, t, temp_time); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3923 | break; |
| 3924 | } |
| 3925 | } |
| 3926 | |
| 3927 | /* process each task in the run queue now. Each task may be deleted |
| 3928 | * since we only use tnext. |
| 3929 | */ |
| 3930 | tnext = rq; |
| 3931 | while ((t = tnext) != NULL) { |
| 3932 | int temp_time; |
| 3933 | |
| 3934 | tnext = t->rqnext; |
| 3935 | task_sleep(&rq, t); |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 3936 | //fprintf(stderr,"task %p\n",t); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3937 | temp_time = t->process(t); |
| 3938 | next_time = MINTIME(temp_time, next_time); |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 3939 | //fprintf(stderr,"process(%p)=%d -> next_time=%d)\n", t, temp_time, next_time); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3940 | } |
| 3941 | |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 3942 | //fprintf(stderr,"---end of run---\n"); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3943 | |
| 3944 | /* maintain all proxies in a consistent state. This should quickly become a task */ |
| 3945 | time2 = maintain_proxies(); |
| 3946 | next_time = MINTIME(time2, next_time); |
| 3947 | |
| 3948 | /* stop when there's no connection left and we don't allow them anymore */ |
| 3949 | if (!actconn && listeners == 0) |
| 3950 | break; |
| 3951 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3952 | |
| 3953 | #if STATTIME > 0 |
| 3954 | time2 = stats(); |
| 3955 | // fprintf(stderr," stats = %d\n", time2); |
| 3956 | next_time = MINTIME(time2, next_time); |
| 3957 | #endif |
| 3958 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3959 | if (next_time > 0) { /* FIXME */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3960 | /* Convert to timeval */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3961 | /* to avoid eventual select loops due to timer precision */ |
| 3962 | next_time += SCHEDULER_RESOLUTION; |
| 3963 | delta.tv_sec = next_time / 1000; |
| 3964 | delta.tv_usec = (next_time % 1000) * 1000; |
| 3965 | } |
| 3966 | else if (next_time == 0) { /* allow select to return immediately when needed */ |
| 3967 | delta.tv_sec = delta.tv_usec = 0; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3968 | } |
| 3969 | |
| 3970 | |
| 3971 | /* let's restore fdset state */ |
| 3972 | |
| 3973 | readnotnull = 0; writenotnull = 0; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 3974 | for (i = 0; i < (global.maxsock + FD_SETSIZE - 1)/(8*sizeof(int)); i++) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3975 | readnotnull |= (*(((int*)ReadEvent)+i) = *(((int*)StaticReadEvent)+i)) != 0; |
| 3976 | writenotnull |= (*(((int*)WriteEvent)+i) = *(((int*)StaticWriteEvent)+i)) != 0; |
| 3977 | } |
| 3978 | |
| 3979 | // /* just a verification code, needs to be removed for performance */ |
| 3980 | // for (i=0; i<maxfd; i++) { |
| 3981 | // if (FD_ISSET(i, ReadEvent) != FD_ISSET(i, StaticReadEvent)) |
| 3982 | // abort(); |
| 3983 | // if (FD_ISSET(i, WriteEvent) != FD_ISSET(i, StaticWriteEvent)) |
| 3984 | // abort(); |
| 3985 | // |
| 3986 | // } |
| 3987 | |
| 3988 | status=select(maxfd, |
| 3989 | readnotnull ? ReadEvent : NULL, |
| 3990 | writenotnull ? WriteEvent : NULL, |
| 3991 | NULL, |
| 3992 | (next_time >= 0) ? &delta : NULL); |
| 3993 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3994 | /* this is an experiment on the separation of the select work */ |
| 3995 | // status = (readnotnull ? select(maxfd, ReadEvent, NULL, NULL, (next_time >= 0) ? &delta : NULL) : 0); |
| 3996 | // status |= (writenotnull ? select(maxfd, NULL, WriteEvent, NULL, (next_time >= 0) ? &delta : NULL) : 0); |
| 3997 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 3998 | tv_now(&now); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 3999 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4000 | if (status > 0) { /* must proceed with events */ |
| 4001 | |
| 4002 | int fds; |
| 4003 | char count; |
| 4004 | |
| 4005 | for (fds = 0; (fds << INTBITS) < maxfd; fds++) |
| 4006 | if ((((int *)(ReadEvent))[fds] | ((int *)(WriteEvent))[fds]) != 0) |
| 4007 | for (count = 1<<INTBITS, fd = fds << INTBITS; count && fd < maxfd; count--, fd++) { |
| 4008 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 4009 | /* if we specify read first, the accepts and zero reads will be |
| 4010 | * seen first. Moreover, system buffers will be flushed faster. |
| 4011 | */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4012 | if (fdtab[fd].state == FD_STCLOSE) |
| 4013 | continue; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4014 | |
| 4015 | if (FD_ISSET(fd, ReadEvent)) |
| 4016 | fdtab[fd].read(fd); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 4017 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 4018 | if (FD_ISSET(fd, WriteEvent)) |
| 4019 | fdtab[fd].write(fd); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4020 | } |
| 4021 | } |
| 4022 | else { |
| 4023 | // fprintf(stderr,"select returned %d, maxfd=%d\n", status, maxfd); |
| 4024 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4025 | } |
| 4026 | } |
| 4027 | |
| 4028 | |
| 4029 | #if STATTIME > 0 |
| 4030 | /* |
| 4031 | * Display proxy statistics regularly. It is designed to be called from the |
| 4032 | * select_loop(). |
| 4033 | */ |
| 4034 | int stats(void) { |
| 4035 | static int lines; |
| 4036 | static struct timeval nextevt; |
| 4037 | static struct timeval lastevt; |
| 4038 | static struct timeval starttime = {0,0}; |
| 4039 | unsigned long totaltime, deltatime; |
| 4040 | int ret; |
| 4041 | |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 4042 | if (tv_cmp(&now, &nextevt) > 0) { |
willy tarreau | 6e682ce | 2005-12-17 13:26:49 +0100 | [diff] [blame] | 4043 | deltatime = (tv_diff(&lastevt, &now)?:1); |
| 4044 | totaltime = (tv_diff(&starttime, &now)?:1); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4045 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4046 | if (global.mode & MODE_STATS) { |
| 4047 | if ((lines++ % 16 == 0) && !(global.mode & MODE_LOG)) |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 4048 | qfprintf(stderr, |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4049 | "\n active total tsknew tskgood tskleft tskrght tsknsch tsklsch tskrsch\n"); |
| 4050 | if (lines>1) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 4051 | qfprintf(stderr,"%07d %07d %07d %07d %07d %07d %07d %07d %07d\n", |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4052 | actconn, totalconn, |
| 4053 | stats_tsk_new, stats_tsk_good, |
| 4054 | stats_tsk_left, stats_tsk_right, |
| 4055 | stats_tsk_nsrch, stats_tsk_lsrch, stats_tsk_rsrch); |
| 4056 | } |
| 4057 | } |
| 4058 | |
| 4059 | tv_delayfrom(&nextevt, &now, STATTIME); |
| 4060 | |
| 4061 | lastevt=now; |
| 4062 | } |
| 4063 | ret = tv_remain(&now, &nextevt); |
| 4064 | return ret; |
| 4065 | } |
| 4066 | #endif |
| 4067 | |
| 4068 | |
| 4069 | /* |
| 4070 | * this function enables proxies when there are enough free sessions, |
| 4071 | * or stops them when the table is full. It is designed to be called from the |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 4072 | * select_loop(). It returns the time left before next expiration event |
| 4073 | * during stop time, -1 otherwise. |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4074 | */ |
| 4075 | static int maintain_proxies(void) { |
| 4076 | struct proxy *p; |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4077 | struct listener *l; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 4078 | int tleft; /* time left */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4079 | |
| 4080 | p = proxy; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 4081 | tleft = -1; /* infinite time */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4082 | |
| 4083 | /* if there are enough free sessions, we'll activate proxies */ |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4084 | if (actconn < global.maxconn) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4085 | while (p) { |
| 4086 | if (p->nbconn < p->maxconn) { |
| 4087 | if (p->state == PR_STIDLE) { |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4088 | for (l = p->listen; l != NULL; l = l->next) { |
| 4089 | FD_SET(l->fd, StaticReadEvent); |
| 4090 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4091 | p->state = PR_STRUN; |
| 4092 | } |
| 4093 | } |
| 4094 | else { |
| 4095 | if (p->state == PR_STRUN) { |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4096 | for (l = p->listen; l != NULL; l = l->next) { |
| 4097 | FD_CLR(l->fd, StaticReadEvent); |
| 4098 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4099 | p->state = PR_STIDLE; |
| 4100 | } |
| 4101 | } |
| 4102 | p = p->next; |
| 4103 | } |
| 4104 | } |
| 4105 | else { /* block all proxies */ |
| 4106 | while (p) { |
| 4107 | if (p->state == PR_STRUN) { |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4108 | for (l = p->listen; l != NULL; l = l->next) { |
| 4109 | FD_CLR(l->fd, StaticReadEvent); |
| 4110 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4111 | p->state = PR_STIDLE; |
| 4112 | } |
| 4113 | p = p->next; |
| 4114 | } |
| 4115 | } |
| 4116 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 4117 | if (stopping) { |
| 4118 | p = proxy; |
| 4119 | while (p) { |
| 4120 | if (p->state != PR_STDISABLED) { |
| 4121 | int t; |
| 4122 | t = tv_remain(&now, &p->stop_time); |
| 4123 | if (t == 0) { |
willy tarreau | 535ae7a | 2005-12-17 12:58:00 +0100 | [diff] [blame] | 4124 | Warning("Proxy %s stopped.\n", p->id); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4125 | send_log(p, LOG_WARNING, "Proxy %s stopped.\n", p->id); |
willy tarreau | 535ae7a | 2005-12-17 12:58:00 +0100 | [diff] [blame] | 4126 | |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4127 | for (l = p->listen; l != NULL; l = l->next) { |
| 4128 | fd_delete(l->fd); |
| 4129 | listeners--; |
| 4130 | } |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 4131 | p->state = PR_STDISABLED; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 4132 | } |
| 4133 | else { |
| 4134 | tleft = MINTIME(t, tleft); |
| 4135 | } |
| 4136 | } |
| 4137 | p = p->next; |
| 4138 | } |
| 4139 | } |
| 4140 | return tleft; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4141 | } |
| 4142 | |
| 4143 | /* |
| 4144 | * this function disables health-check servers so that the process will quickly be ignored |
| 4145 | * by load balancers. |
| 4146 | */ |
| 4147 | static void soft_stop(void) { |
| 4148 | struct proxy *p; |
| 4149 | |
| 4150 | stopping = 1; |
| 4151 | p = proxy; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 4152 | tv_now(&now); /* else, the old time before select will be used */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4153 | while (p) { |
willy tarreau | 535ae7a | 2005-12-17 12:58:00 +0100 | [diff] [blame] | 4154 | if (p->state != PR_STDISABLED) { |
| 4155 | Warning("Stopping proxy %s in %d ms.\n", p->id, p->grace); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4156 | send_log(p, LOG_WARNING, "Stopping proxy %s in %d ms.\n", p->id, p->grace); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4157 | tv_delayfrom(&p->stop_time, &now, p->grace); |
willy tarreau | 535ae7a | 2005-12-17 12:58:00 +0100 | [diff] [blame] | 4158 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4159 | p = p->next; |
| 4160 | } |
| 4161 | } |
| 4162 | |
| 4163 | /* |
| 4164 | * upon SIGUSR1, let's have a soft stop. |
| 4165 | */ |
| 4166 | void sig_soft_stop(int sig) { |
| 4167 | soft_stop(); |
| 4168 | signal(sig, SIG_IGN); |
| 4169 | } |
| 4170 | |
| 4171 | |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 4172 | /* |
| 4173 | * this function dumps every server's state when the process receives SIGHUP. |
| 4174 | */ |
| 4175 | void sig_dump_state(int sig) { |
| 4176 | struct proxy *p = proxy; |
| 4177 | |
| 4178 | Warning("SIGHUP received, dumping servers states.\n"); |
| 4179 | while (p) { |
| 4180 | struct server *s = p->srv; |
| 4181 | |
| 4182 | send_log(p, LOG_NOTICE, "SIGUP received, dumping servers states.\n"); |
| 4183 | while (s) { |
| 4184 | if (s->state & SRV_RUNNING) { |
| 4185 | Warning("SIGHUP: server %s/%s is UP.\n", p->id, s->id); |
| 4186 | send_log(p, LOG_NOTICE, "SIGUP: server %s/%s is UP.\n", p->id, s->id); |
| 4187 | } |
| 4188 | else { |
| 4189 | Warning("SIGHUP: server %s/%s is DOWN.\n", p->id, s->id); |
| 4190 | send_log(p, LOG_NOTICE, "SIGHUP: server %s/%s is DOWN.\n", p->id, s->id); |
| 4191 | } |
| 4192 | s = s->next; |
| 4193 | } |
| 4194 | p = p->next; |
| 4195 | } |
| 4196 | signal(sig, sig_dump_state); |
| 4197 | } |
| 4198 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4199 | void dump(int sig) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 4200 | struct task *t, *tnext; |
| 4201 | struct session *s; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4202 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 4203 | tnext = ((struct task *)LIST_HEAD(wait_queue))->next; |
| 4204 | while ((t = tnext) != LIST_HEAD(wait_queue)) { /* we haven't looped ? */ |
| 4205 | tnext = t->next; |
| 4206 | s = t->context; |
| 4207 | qfprintf(stderr,"[dump] wq: task %p, still %ld ms, " |
| 4208 | "cli=%d, srv=%d, cr=%d, cw=%d, sr=%d, sw=%d, " |
| 4209 | "req=%d, rep=%d, clifd=%d\n", |
| 4210 | s, tv_remain(&now, &t->expire), |
| 4211 | s->cli_state, |
| 4212 | s->srv_state, |
| 4213 | FD_ISSET(s->cli_fd, StaticReadEvent), |
| 4214 | FD_ISSET(s->cli_fd, StaticWriteEvent), |
| 4215 | FD_ISSET(s->srv_fd, StaticReadEvent), |
| 4216 | FD_ISSET(s->srv_fd, StaticWriteEvent), |
| 4217 | s->req->l, s->rep?s->rep->l:0, s->cli_fd |
| 4218 | ); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4219 | } |
| 4220 | } |
| 4221 | |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 4222 | void chain_regex(struct hdr_exp **head, regex_t *preg, int action, char *replace) { |
| 4223 | struct hdr_exp *exp; |
| 4224 | |
| 4225 | while (*head != NULL) |
| 4226 | head = &(*head)->next; |
| 4227 | |
| 4228 | exp = calloc(1, sizeof(struct hdr_exp)); |
| 4229 | |
| 4230 | exp->preg = preg; |
| 4231 | exp->replace = replace; |
| 4232 | exp->action = action; |
| 4233 | *head = exp; |
| 4234 | } |
| 4235 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4236 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4237 | /* |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4238 | * parse a line in a <global> section. Returns 0 if OK, -1 if error. |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4239 | */ |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4240 | int cfg_parse_global(char *file, int linenum, char **args) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4241 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4242 | if (!strcmp(args[0], "global")) { /* new section */ |
| 4243 | /* no option, nothing special to do */ |
| 4244 | return 0; |
| 4245 | } |
| 4246 | else if (!strcmp(args[0], "daemon")) { |
| 4247 | global.mode |= MODE_DAEMON; |
| 4248 | } |
| 4249 | else if (!strcmp(args[0], "debug")) { |
| 4250 | global.mode |= MODE_DEBUG; |
| 4251 | } |
| 4252 | else if (!strcmp(args[0], "quiet")) { |
| 4253 | global.mode |= MODE_QUIET; |
| 4254 | } |
| 4255 | else if (!strcmp(args[0], "stats")) { |
| 4256 | global.mode |= MODE_STATS; |
| 4257 | } |
| 4258 | else if (!strcmp(args[0], "uid")) { |
| 4259 | if (global.uid != 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4260 | Alert("parsing [%s:%d] : '%s' already specified. Continuing.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4261 | return 0; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4262 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4263 | if (*(args[1]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4264 | Alert("parsing [%s:%d] : '%s' expects an integer argument.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4265 | return -1; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 4266 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4267 | global.uid = atol(args[1]); |
| 4268 | } |
| 4269 | else if (!strcmp(args[0], "gid")) { |
| 4270 | if (global.gid != 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4271 | Alert("parsing [%s:%d] : '%s' already specified. Continuing.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4272 | return 0; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4273 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4274 | if (*(args[1]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4275 | Alert("parsing [%s:%d] : '%s' expects an integer argument.\n", file, linenum, args[0]); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4276 | return -1; |
| 4277 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4278 | global.gid = atol(args[1]); |
| 4279 | } |
| 4280 | else if (!strcmp(args[0], "nbproc")) { |
| 4281 | if (global.nbproc != 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4282 | Alert("parsing [%s:%d] : '%s' already specified. Continuing.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4283 | return 0; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4284 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4285 | if (*(args[1]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4286 | Alert("parsing [%s:%d] : '%s' expects an integer argument.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4287 | return -1; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4288 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4289 | global.nbproc = atol(args[1]); |
| 4290 | } |
| 4291 | else if (!strcmp(args[0], "maxconn")) { |
| 4292 | if (global.maxconn != 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4293 | Alert("parsing [%s:%d] : '%s' already specified. Continuing.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4294 | return 0; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4295 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4296 | if (*(args[1]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4297 | Alert("parsing [%s:%d] : '%s' expects an integer argument.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4298 | return -1; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4299 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4300 | global.maxconn = atol(args[1]); |
| 4301 | } |
| 4302 | else if (!strcmp(args[0], "chroot")) { |
| 4303 | if (global.chroot != NULL) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4304 | Alert("parsing [%s:%d] : '%s' already specified. Continuing.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4305 | return 0; |
| 4306 | } |
| 4307 | if (*(args[1]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4308 | Alert("parsing [%s:%d] : '%s' expects a directory as an argument.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4309 | return -1; |
| 4310 | } |
| 4311 | global.chroot = strdup(args[1]); |
| 4312 | } |
| 4313 | else if (!strcmp(args[0], "log")) { /* syslog server address */ |
| 4314 | struct sockaddr_in *sa; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 4315 | int facility, level; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4316 | |
| 4317 | if (*(args[1]) == 0 || *(args[2]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4318 | Alert("parsing [%s:%d] : '%s' expects <address> and <facility> as arguments.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4319 | return -1; |
| 4320 | } |
| 4321 | |
| 4322 | for (facility = 0; facility < NB_LOG_FACILITIES; facility++) |
| 4323 | if (!strcmp(log_facilities[facility], args[2])) |
| 4324 | break; |
| 4325 | |
| 4326 | if (facility >= NB_LOG_FACILITIES) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4327 | Alert("parsing [%s:%d] : unknown log facility '%s'\n", file, linenum, args[2]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4328 | exit(1); |
| 4329 | } |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 4330 | |
| 4331 | level = 7; /* max syslog level = debug */ |
| 4332 | if (*(args[3])) { |
| 4333 | while (level >= 0 && strcmp(log_levels[level], args[3])) |
| 4334 | level--; |
| 4335 | if (level < 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4336 | Alert("parsing [%s:%d] : unknown optional log level '%s'\n", file, linenum, args[3]); |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 4337 | exit(1); |
| 4338 | } |
| 4339 | } |
| 4340 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4341 | sa = str2sa(args[1]); |
| 4342 | if (!sa->sin_port) |
| 4343 | sa->sin_port = htons(SYSLOG_PORT); |
| 4344 | |
| 4345 | if (global.logfac1 == -1) { |
| 4346 | global.logsrv1 = *sa; |
| 4347 | global.logfac1 = facility; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 4348 | global.loglev1 = level; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4349 | } |
| 4350 | else if (global.logfac2 == -1) { |
| 4351 | global.logsrv2 = *sa; |
| 4352 | global.logfac2 = facility; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 4353 | global.loglev2 = level; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4354 | } |
| 4355 | else { |
| 4356 | Alert("parsing [%s:%d] : too many syslog servers\n", file, linenum); |
| 4357 | return -1; |
| 4358 | } |
| 4359 | |
| 4360 | } |
| 4361 | else { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4362 | Alert("parsing [%s:%d] : unknown keyword '%s' in '%s' section\n", file, linenum, args[0], "global"); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4363 | return -1; |
| 4364 | } |
| 4365 | return 0; |
| 4366 | } |
| 4367 | |
| 4368 | |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4369 | void init_default_instance() { |
| 4370 | memset(&defproxy, 0, sizeof(defproxy)); |
| 4371 | defproxy.mode = PR_MODE_TCP; |
| 4372 | defproxy.state = PR_STNEW; |
| 4373 | defproxy.maxconn = cfg_maxpconn; |
| 4374 | defproxy.conn_retries = CONN_RETRIES; |
| 4375 | defproxy.logfac1 = defproxy.logfac2 = -1; /* log disabled */ |
| 4376 | } |
| 4377 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4378 | /* |
| 4379 | * parse a line in a <listen> section. Returns 0 if OK, -1 if error. |
| 4380 | */ |
| 4381 | int cfg_parse_listen(char *file, int linenum, char **args) { |
| 4382 | static struct proxy *curproxy = NULL; |
| 4383 | struct server *newsrv = NULL; |
| 4384 | |
| 4385 | if (!strcmp(args[0], "listen")) { /* new proxy */ |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4386 | if (!*args[1]) { |
| 4387 | Alert("parsing [%s:%d] : '%s' expects an <id> argument and\n" |
| 4388 | " optionnally supports [addr1]:port1[-end1]{,[addr]:port[-end]}...\n", |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4389 | file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4390 | return -1; |
| 4391 | } |
| 4392 | |
| 4393 | if ((curproxy = (struct proxy *)calloc(1, sizeof(struct proxy))) == NULL) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4394 | Alert("parsing [%s:%d] : out of memory.\n", file, linenum); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4395 | return -1; |
| 4396 | } |
| 4397 | curproxy->next = proxy; |
| 4398 | proxy = curproxy; |
| 4399 | curproxy->id = strdup(args[1]); |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4400 | if (strchr(args[2], ':') != NULL) |
| 4401 | curproxy->listen = str2listener(args[2], curproxy->listen); |
| 4402 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4403 | /* set default values */ |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4404 | curproxy->state = defproxy.state; |
| 4405 | curproxy->maxconn = defproxy.maxconn; |
| 4406 | curproxy->conn_retries = defproxy.conn_retries; |
| 4407 | curproxy->options = defproxy.options; |
willy tarreau | eedaa9f | 2005-12-17 14:08:03 +0100 | [diff] [blame^] | 4408 | |
| 4409 | if (defproxy.check_req) |
| 4410 | curproxy->check_req = strdup(defproxy.check_req); |
| 4411 | curproxy->check_len = defproxy.check_len; |
| 4412 | |
| 4413 | if (defproxy.cookie_name) |
| 4414 | curproxy->cookie_name = strdup(defproxy.cookie_name); |
| 4415 | curproxy->cookie_len = defproxy.cookie_len; |
| 4416 | |
| 4417 | if (defproxy.capture_name) |
| 4418 | curproxy->capture_name = strdup(defproxy.capture_name); |
| 4419 | curproxy->capture_namelen = defproxy.capture_namelen; |
| 4420 | curproxy->capture_len = defproxy.capture_len; |
| 4421 | |
| 4422 | if (defproxy.errmsg.msg400) |
| 4423 | curproxy->errmsg.msg400 = strdup(defproxy.errmsg.msg400); |
| 4424 | curproxy->errmsg.len400 = defproxy.errmsg.len400; |
| 4425 | |
| 4426 | if (defproxy.errmsg.msg403) |
| 4427 | curproxy->errmsg.msg403 = strdup(defproxy.errmsg.msg403); |
| 4428 | curproxy->errmsg.len403 = defproxy.errmsg.len403; |
| 4429 | |
| 4430 | if (defproxy.errmsg.msg408) |
| 4431 | curproxy->errmsg.msg408 = strdup(defproxy.errmsg.msg408); |
| 4432 | curproxy->errmsg.len408 = defproxy.errmsg.len408; |
| 4433 | |
| 4434 | if (defproxy.errmsg.msg500) |
| 4435 | curproxy->errmsg.msg500 = strdup(defproxy.errmsg.msg500); |
| 4436 | curproxy->errmsg.len500 = defproxy.errmsg.len500; |
| 4437 | |
| 4438 | if (defproxy.errmsg.msg502) |
| 4439 | curproxy->errmsg.msg502 = strdup(defproxy.errmsg.msg502); |
| 4440 | curproxy->errmsg.len502 = defproxy.errmsg.len502; |
| 4441 | |
| 4442 | if (defproxy.errmsg.msg503) |
| 4443 | curproxy->errmsg.msg503 = strdup(defproxy.errmsg.msg503); |
| 4444 | curproxy->errmsg.len503 = defproxy.errmsg.len503; |
| 4445 | |
| 4446 | if (defproxy.errmsg.msg504) |
| 4447 | curproxy->errmsg.msg504 = strdup(defproxy.errmsg.msg504); |
| 4448 | curproxy->errmsg.len504 = defproxy.errmsg.len504; |
| 4449 | |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4450 | curproxy->clitimeout = defproxy.clitimeout; |
| 4451 | curproxy->contimeout = defproxy.contimeout; |
| 4452 | curproxy->srvtimeout = defproxy.srvtimeout; |
| 4453 | curproxy->mode = defproxy.mode; |
| 4454 | curproxy->logfac1 = defproxy.logfac1; |
| 4455 | curproxy->logsrv1 = defproxy.logsrv1; |
| 4456 | curproxy->loglev1 = defproxy.loglev1; |
| 4457 | curproxy->logfac2 = defproxy.logfac2; |
| 4458 | curproxy->logsrv2 = defproxy.logsrv2; |
| 4459 | curproxy->loglev2 = defproxy.loglev2; |
| 4460 | curproxy->to_log = defproxy.to_log; |
| 4461 | curproxy->grace = defproxy.grace; |
| 4462 | curproxy->source_addr = defproxy.source_addr; |
| 4463 | return 0; |
| 4464 | } |
| 4465 | else if (!strcmp(args[0], "defaults")) { /* use this one to assign default values */ |
willy tarreau | eedaa9f | 2005-12-17 14:08:03 +0100 | [diff] [blame^] | 4466 | /* some variables may have already been initialized earlier */ |
| 4467 | if (defproxy.check_req) free(defproxy.check_req); |
| 4468 | if (defproxy.cookie_name) free(defproxy.cookie_name); |
| 4469 | if (defproxy.capture_name) free(defproxy.capture_name); |
| 4470 | if (defproxy.errmsg.msg400) free(defproxy.errmsg.msg400); |
| 4471 | if (defproxy.errmsg.msg403) free(defproxy.errmsg.msg403); |
| 4472 | if (defproxy.errmsg.msg408) free(defproxy.errmsg.msg408); |
| 4473 | if (defproxy.errmsg.msg500) free(defproxy.errmsg.msg500); |
| 4474 | if (defproxy.errmsg.msg502) free(defproxy.errmsg.msg502); |
| 4475 | if (defproxy.errmsg.msg503) free(defproxy.errmsg.msg503); |
| 4476 | if (defproxy.errmsg.msg504) free(defproxy.errmsg.msg504); |
| 4477 | |
| 4478 | init_default_instance(); |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4479 | curproxy = &defproxy; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4480 | return 0; |
| 4481 | } |
| 4482 | else if (curproxy == NULL) { |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4483 | Alert("parsing [%s:%d] : 'listen' or 'defaults' expected.\n", file, linenum); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4484 | return -1; |
| 4485 | } |
| 4486 | |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4487 | if (!strcmp(args[0], "bind")) { /* new listen addresses */ |
| 4488 | if (curproxy == &defproxy) { |
| 4489 | Alert("parsing [%s:%d] : '%s' not allowed in 'defaults' section.\n", file, linenum, args[0]); |
| 4490 | return -1; |
| 4491 | } |
| 4492 | |
| 4493 | if (strchr(args[1], ':') == NULL) { |
| 4494 | Alert("parsing [%s:%d] : '%s' expects [addr1]:port1[-end1]{,[addr]:port[-end]}... as arguments.\n", |
| 4495 | file, linenum, args[0]); |
| 4496 | return -1; |
| 4497 | } |
| 4498 | curproxy->listen = str2listener(args[1], curproxy->listen); |
| 4499 | return 0; |
| 4500 | } |
| 4501 | else if (!strcmp(args[0], "mode")) { /* sets the proxy mode */ |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4502 | if (!strcmp(args[1], "http")) curproxy->mode = PR_MODE_HTTP; |
| 4503 | else if (!strcmp(args[1], "tcp")) curproxy->mode = PR_MODE_TCP; |
| 4504 | else if (!strcmp(args[1], "health")) curproxy->mode = PR_MODE_HEALTH; |
| 4505 | else { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4506 | Alert("parsing [%s:%d] : unknown proxy mode '%s'.\n", file, linenum, args[1]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4507 | return -1; |
| 4508 | } |
| 4509 | } |
| 4510 | else if (!strcmp(args[0], "disabled")) { /* disables this proxy */ |
| 4511 | curproxy->state = PR_STDISABLED; |
| 4512 | } |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4513 | else if (!strcmp(args[0], "enabled")) { /* enables this proxy (used to revert a disabled default) */ |
| 4514 | curproxy->state = PR_STNEW; |
| 4515 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4516 | else if (!strcmp(args[0], "cookie")) { /* cookie name */ |
| 4517 | int cur_arg; |
willy tarreau | eedaa9f | 2005-12-17 14:08:03 +0100 | [diff] [blame^] | 4518 | // if (curproxy == &defproxy) { |
| 4519 | // Alert("parsing [%s:%d] : '%s' not allowed in 'defaults' section.\n", file, linenum, args[0]); |
| 4520 | // return -1; |
| 4521 | // } |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4522 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4523 | if (curproxy->cookie_name != NULL) { |
willy tarreau | eedaa9f | 2005-12-17 14:08:03 +0100 | [diff] [blame^] | 4524 | // Alert("parsing [%s:%d] : cookie name already specified. Continuing.\n", |
| 4525 | // file, linenum); |
| 4526 | // return 0; |
| 4527 | free(curproxy->cookie_name); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4528 | } |
| 4529 | |
| 4530 | if (*(args[1]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4531 | Alert("parsing [%s:%d] : '%s' expects <cookie_name> as argument.\n", |
| 4532 | file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4533 | return -1; |
| 4534 | } |
| 4535 | curproxy->cookie_name = strdup(args[1]); |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 4536 | curproxy->cookie_len = strlen(curproxy->cookie_name); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4537 | |
| 4538 | cur_arg = 2; |
| 4539 | while (*(args[cur_arg])) { |
| 4540 | if (!strcmp(args[cur_arg], "rewrite")) { |
| 4541 | curproxy->options |= PR_O_COOK_RW; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4542 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4543 | else if (!strcmp(args[cur_arg], "indirect")) { |
| 4544 | curproxy->options |= PR_O_COOK_IND; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4545 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4546 | else if (!strcmp(args[cur_arg], "insert")) { |
| 4547 | curproxy->options |= PR_O_COOK_INS; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4548 | } |
willy tarreau | 240afa6 | 2005-12-17 13:14:35 +0100 | [diff] [blame] | 4549 | else if (!strcmp(args[cur_arg], "nocache")) { |
| 4550 | curproxy->options |= PR_O_COOK_NOC; |
| 4551 | } |
willy tarreau | cd87894 | 2005-12-17 13:27:43 +0100 | [diff] [blame] | 4552 | else if (!strcmp(args[cur_arg], "postonly")) { |
| 4553 | curproxy->options |= PR_O_COOK_POST; |
| 4554 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4555 | else { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4556 | Alert("parsing [%s:%d] : '%s' supports 'rewrite', 'insert', 'indirect', 'nocache' and 'postonly' options.\n", |
| 4557 | file, linenum, args[0]); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4558 | return -1; |
| 4559 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4560 | cur_arg++; |
| 4561 | } |
| 4562 | if ((curproxy->options & (PR_O_COOK_RW|PR_O_COOK_IND)) == (PR_O_COOK_RW|PR_O_COOK_IND)) { |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4563 | Alert("parsing [%s:%d] : cookie 'rewrite' and 'indirect' mode are incompatible.\n", |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4564 | file, linenum); |
| 4565 | return -1; |
| 4566 | } |
| 4567 | } |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 4568 | else if (!strcmp(args[0], "capture")) { /* name of a cookie to capture */ |
willy tarreau | eedaa9f | 2005-12-17 14:08:03 +0100 | [diff] [blame^] | 4569 | // if (curproxy == &defproxy) { |
| 4570 | // Alert("parsing [%s:%d] : '%s' not allowed in 'defaults' section.\n", file, linenum, args[0]); |
| 4571 | // return -1; |
| 4572 | // } |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4573 | |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 4574 | if (curproxy->capture_name != NULL) { |
willy tarreau | eedaa9f | 2005-12-17 14:08:03 +0100 | [diff] [blame^] | 4575 | // Alert("parsing [%s:%d] : '%s' already specified. Continuing.\n", |
| 4576 | // file, linenum, args[0]); |
| 4577 | // return 0; |
| 4578 | free(curproxy->capture_name); |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 4579 | } |
| 4580 | |
| 4581 | if (*(args[4]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4582 | Alert("parsing [%s:%d] : '%s' expects 'cookie' <cookie_name> 'len' <len>.\n", |
| 4583 | file, linenum, args[0]); |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 4584 | return -1; |
| 4585 | } |
| 4586 | curproxy->capture_name = strdup(args[2]); |
| 4587 | curproxy->capture_namelen = strlen(curproxy->capture_name); |
| 4588 | curproxy->capture_len = atol(args[4]); |
| 4589 | if (curproxy->capture_len >= CAPTURE_LEN) { |
| 4590 | Warning("parsing [%s:%d] : truncating capture length to %d bytes.\n", |
| 4591 | file, linenum, CAPTURE_LEN - 1); |
| 4592 | curproxy->capture_len = CAPTURE_LEN - 1; |
| 4593 | } |
| 4594 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4595 | else if (!strcmp(args[0], "contimeout")) { /* connect timeout */ |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4596 | if (curproxy->contimeout != defproxy.contimeout) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4597 | Alert("parsing [%s:%d] : '%s' already specified. Continuing.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4598 | return 0; |
| 4599 | } |
| 4600 | if (*(args[1]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4601 | Alert("parsing [%s:%d] : '%s' expects an integer <time_in_ms> as argument.\n", |
| 4602 | file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4603 | return -1; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4604 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4605 | curproxy->contimeout = atol(args[1]); |
| 4606 | } |
| 4607 | else if (!strcmp(args[0], "clitimeout")) { /* client timeout */ |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4608 | if (curproxy->clitimeout != defproxy.clitimeout) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4609 | Alert("parsing [%s:%d] : '%s' already specified. Continuing.\n", |
| 4610 | file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4611 | return 0; |
| 4612 | } |
| 4613 | if (*(args[1]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4614 | Alert("parsing [%s:%d] : '%s' expects an integer <time_in_ms> as argument.\n", |
| 4615 | file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4616 | return -1; |
| 4617 | } |
| 4618 | curproxy->clitimeout = atol(args[1]); |
| 4619 | } |
| 4620 | else if (!strcmp(args[0], "srvtimeout")) { /* server timeout */ |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4621 | if (curproxy->srvtimeout != defproxy.srvtimeout) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4622 | Alert("parsing [%s:%d] : '%s' already specified. Continuing.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4623 | return 0; |
| 4624 | } |
| 4625 | if (*(args[1]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4626 | Alert("parsing [%s:%d] : '%s' expects an integer <time_in_ms> as argument.\n", |
| 4627 | file, linenum, args[0]); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4628 | return -1; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4629 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4630 | curproxy->srvtimeout = atol(args[1]); |
| 4631 | } |
| 4632 | else if (!strcmp(args[0], "retries")) { /* connection retries */ |
| 4633 | if (*(args[1]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4634 | Alert("parsing [%s:%d] : '%s' expects an integer argument (dispatch counts for one).\n", |
| 4635 | file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4636 | return -1; |
| 4637 | } |
| 4638 | curproxy->conn_retries = atol(args[1]); |
| 4639 | } |
| 4640 | else if (!strcmp(args[0], "option")) { |
| 4641 | if (*(args[1]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4642 | Alert("parsing [%s:%d] : '%s' expects an option name.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4643 | return -1; |
| 4644 | } |
| 4645 | if (!strcmp(args[1], "redispatch")) |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 4646 | /* enable reconnections to dispatch */ |
| 4647 | curproxy->options |= PR_O_REDISP; |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 4648 | #ifdef TPROXY |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4649 | else if (!strcmp(args[1], "transparent")) |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 4650 | /* enable transparent proxy connections */ |
| 4651 | curproxy->options |= PR_O_TRANSP; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4652 | #endif |
| 4653 | else if (!strcmp(args[1], "keepalive")) |
| 4654 | /* enable keep-alive */ |
| 4655 | curproxy->options |= PR_O_KEEPALIVE; |
| 4656 | else if (!strcmp(args[1], "forwardfor")) |
| 4657 | /* insert x-forwarded-for field */ |
| 4658 | curproxy->options |= PR_O_FWDFOR; |
| 4659 | else if (!strcmp(args[1], "httplog")) { |
| 4660 | /* generate a complete HTTP log */ |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 4661 | curproxy->to_log |= LW_DATE | LW_CLIP | LW_SVID | LW_REQ | LW_PXID | LW_RESP; |
| 4662 | } |
| 4663 | else if (!strcmp(args[1], "dontlognull")) { |
| 4664 | /* don't log empty requests */ |
| 4665 | curproxy->options |= PR_O_NULLNOLOG; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 4666 | } |
willy tarreau | bc4e1fb | 2005-12-17 13:32:07 +0100 | [diff] [blame] | 4667 | else if (!strcmp(args[1], "httpchk")) { |
| 4668 | /* use HTTP request to check servers' health */ |
willy tarreau | eedaa9f | 2005-12-17 14:08:03 +0100 | [diff] [blame^] | 4669 | if (curproxy->check_req != NULL) { |
| 4670 | free(curproxy->check_req); |
| 4671 | } |
willy tarreau | bc4e1fb | 2005-12-17 13:32:07 +0100 | [diff] [blame] | 4672 | curproxy->options |= PR_O_HTTP_CHK; |
willy tarreau | eedaa9f | 2005-12-17 14:08:03 +0100 | [diff] [blame^] | 4673 | if (!*args[2]) { /* no argument */ |
| 4674 | curproxy->check_req = strdup(DEF_CHECK_REQ); /* default request */ |
| 4675 | curproxy->check_len = strlen(DEF_CHECK_REQ); |
| 4676 | } else if (!*args[3]) { /* one argument : URI */ |
willy tarreau | 2f6ba65 | 2005-12-17 13:57:42 +0100 | [diff] [blame] | 4677 | int reqlen = strlen(args[2]) + strlen("OPTIONS / HTTP/1.0\r\n\r\n"); |
| 4678 | curproxy->check_req = (char *)malloc(reqlen); |
| 4679 | curproxy->check_len = snprintf(curproxy->check_req, reqlen, |
| 4680 | "OPTIONS %s HTTP/1.0\r\n\r\n", args[2]); /* URI to use */ |
willy tarreau | eedaa9f | 2005-12-17 14:08:03 +0100 | [diff] [blame^] | 4681 | } else { /* more arguments : METHOD URI [HTTP_VER] */ |
| 4682 | int reqlen = strlen(args[2]) + strlen(args[3]) + 3 + strlen("\r\n\r\n"); |
| 4683 | if (*args[4]) |
| 4684 | reqlen += strlen(args[4]); |
| 4685 | else |
| 4686 | reqlen += strlen("HTTP/1.0"); |
| 4687 | |
| 4688 | curproxy->check_req = (char *)malloc(reqlen); |
| 4689 | curproxy->check_len = snprintf(curproxy->check_req, reqlen, |
| 4690 | "%s %s %s\r\n\r\n", args[2], args[3], *args[4]?args[4]:"HTTP/1.0"); |
willy tarreau | 2f6ba65 | 2005-12-17 13:57:42 +0100 | [diff] [blame] | 4691 | } |
willy tarreau | bc4e1fb | 2005-12-17 13:32:07 +0100 | [diff] [blame] | 4692 | } |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 4693 | else if (!strcmp(args[1], "persist")) { |
| 4694 | /* persist on using the server specified by the cookie, even when it's down */ |
| 4695 | curproxy->options |= PR_O_PERSIST; |
| 4696 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4697 | else { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4698 | Alert("parsing [%s:%d] : unknown option '%s'.\n", file, linenum, args[1]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4699 | return -1; |
| 4700 | } |
| 4701 | return 0; |
| 4702 | } |
| 4703 | else if (!strcmp(args[0], "redispatch") || !strcmp(args[0], "redisp")) { |
| 4704 | /* enable reconnections to dispatch */ |
| 4705 | curproxy->options |= PR_O_REDISP; |
| 4706 | } |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 4707 | #ifdef TPROXY |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4708 | else if (!strcmp(args[0], "transparent")) { |
| 4709 | /* enable transparent proxy connections */ |
| 4710 | curproxy->options |= PR_O_TRANSP; |
| 4711 | } |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 4712 | #endif |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4713 | else if (!strcmp(args[0], "maxconn")) { /* maxconn */ |
| 4714 | if (*(args[1]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4715 | Alert("parsing [%s:%d] : '%s' expects an integer argument.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4716 | return -1; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4717 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4718 | curproxy->maxconn = atol(args[1]); |
| 4719 | } |
| 4720 | else if (!strcmp(args[0], "grace")) { /* grace time (ms) */ |
| 4721 | if (*(args[1]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4722 | Alert("parsing [%s:%d] : '%s' expects a time in milliseconds.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4723 | return -1; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4724 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4725 | curproxy->grace = atol(args[1]); |
| 4726 | } |
| 4727 | else if (!strcmp(args[0], "dispatch")) { /* dispatch address */ |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4728 | if (curproxy == &defproxy) { |
| 4729 | Alert("parsing [%s:%d] : '%s' not allowed in 'defaults' section.\n", file, linenum, args[0]); |
| 4730 | return -1; |
| 4731 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4732 | if (strchr(args[1], ':') == NULL) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4733 | Alert("parsing [%s:%d] : '%s' expects <addr:port> as argument.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4734 | return -1; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4735 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4736 | curproxy->dispatch_addr = *str2sa(args[1]); |
| 4737 | } |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4738 | else if (!strcmp(args[0], "balance")) { /* set balancing with optional algorithm */ |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4739 | if (*(args[1])) { |
| 4740 | if (!strcmp(args[1], "roundrobin")) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 4741 | curproxy->options |= PR_O_BALANCE_RR; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4742 | } |
| 4743 | else { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4744 | Alert("parsing [%s:%d] : '%s' only supports 'roundrobin' option.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4745 | return -1; |
| 4746 | } |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 4747 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4748 | else /* if no option is set, use round-robin by default */ |
| 4749 | curproxy->options |= PR_O_BALANCE_RR; |
| 4750 | } |
| 4751 | else if (!strcmp(args[0], "server")) { /* server address */ |
| 4752 | int cur_arg; |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4753 | char *rport; |
| 4754 | char *raddr; |
| 4755 | short realport; |
| 4756 | int do_check; |
| 4757 | |
| 4758 | if (curproxy == &defproxy) { |
| 4759 | Alert("parsing [%s:%d] : '%s' not allowed in 'defaults' section.\n", file, linenum, args[0]); |
| 4760 | return -1; |
| 4761 | } |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 4762 | |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4763 | if (!*args[2]) { |
| 4764 | Alert("parsing [%s:%d] : '%s' expects <name> and <addr>[:<port>] as arguments.\n", |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4765 | file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4766 | return -1; |
| 4767 | } |
| 4768 | if ((newsrv = (struct server *)calloc(1, sizeof(struct server))) == NULL) { |
| 4769 | Alert("parsing [%s:%d] : out of memory.\n", file, linenum); |
| 4770 | return -1; |
| 4771 | } |
| 4772 | newsrv->next = curproxy->srv; |
| 4773 | curproxy->srv = newsrv; |
| 4774 | newsrv->proxy = curproxy; |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4775 | |
| 4776 | do_check = 0; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4777 | newsrv->state = SRV_RUNNING; /* early server setup */ |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4778 | newsrv->id = strdup(args[1]); |
| 4779 | |
| 4780 | /* several ways to check the port component : |
| 4781 | * - IP => port=+0, relative |
| 4782 | * - IP: => port=+0, relative |
| 4783 | * - IP:N => port=N, absolute |
| 4784 | * - IP:+N => port=+N, relative |
| 4785 | * - IP:-N => port=-N, relative |
| 4786 | */ |
| 4787 | raddr = strdup(args[2]); |
| 4788 | rport = strchr(raddr, ':'); |
| 4789 | if (rport) { |
| 4790 | *rport++ = 0; |
| 4791 | realport = atol(rport); |
| 4792 | if (!isdigit((int)*rport)) |
| 4793 | newsrv->state |= SRV_MAPPORTS; |
| 4794 | } else { |
| 4795 | realport = 0; |
| 4796 | newsrv->state |= SRV_MAPPORTS; |
| 4797 | } |
| 4798 | |
| 4799 | newsrv->addr = *str2sa(raddr); |
| 4800 | newsrv->addr.sin_port = htons(realport); |
| 4801 | free(raddr); |
| 4802 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4803 | newsrv->curfd = -1; /* no health-check in progress */ |
| 4804 | newsrv->inter = DEF_CHKINTR; |
| 4805 | newsrv->rise = DEF_RISETIME; |
| 4806 | newsrv->fall = DEF_FALLTIME; |
| 4807 | newsrv->health = newsrv->rise; /* up, but will fall down at first failure */ |
| 4808 | cur_arg = 3; |
| 4809 | while (*args[cur_arg]) { |
| 4810 | if (!strcmp(args[cur_arg], "cookie")) { |
| 4811 | newsrv->cookie = strdup(args[cur_arg + 1]); |
| 4812 | newsrv->cklen = strlen(args[cur_arg + 1]); |
| 4813 | cur_arg += 2; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4814 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4815 | else if (!strcmp(args[cur_arg], "rise")) { |
| 4816 | newsrv->rise = atol(args[cur_arg + 1]); |
| 4817 | newsrv->health = newsrv->rise; |
| 4818 | cur_arg += 2; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4819 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4820 | else if (!strcmp(args[cur_arg], "fall")) { |
| 4821 | newsrv->fall = atol(args[cur_arg + 1]); |
| 4822 | cur_arg += 2; |
| 4823 | } |
| 4824 | else if (!strcmp(args[cur_arg], "inter")) { |
| 4825 | newsrv->inter = atol(args[cur_arg + 1]); |
| 4826 | cur_arg += 2; |
| 4827 | } |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4828 | else if (!strcmp(args[cur_arg], "port")) { |
| 4829 | newsrv->check_port = atol(args[cur_arg + 1]); |
| 4830 | cur_arg += 2; |
| 4831 | } |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 4832 | else if (!strcmp(args[cur_arg], "backup")) { |
| 4833 | newsrv->state |= SRV_BACKUP; |
| 4834 | cur_arg ++; |
| 4835 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4836 | else if (!strcmp(args[cur_arg], "check")) { |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4837 | do_check = 1; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4838 | cur_arg += 1; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 4839 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4840 | else { |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4841 | Alert("parsing [%s:%d] : server %s only supports options 'backup', 'cookie', 'check', 'inter', 'rise' and 'fall'.\n", |
| 4842 | file, linenum, newsrv->id); |
| 4843 | return -1; |
| 4844 | } |
| 4845 | } |
| 4846 | |
| 4847 | if (do_check) { |
| 4848 | struct task *t; |
| 4849 | |
| 4850 | if (!newsrv->check_port && !(newsrv->state & SRV_MAPPORTS)) |
| 4851 | newsrv->check_port = realport; /* by default */ |
| 4852 | if (!newsrv->check_port) { |
| 4853 | Alert("parsing [%s:%d] : server %s has neither service port nor check port. Check has been disabled.\n", |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4854 | file, linenum, newsrv->id); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4855 | return -1; |
| 4856 | } |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4857 | |
| 4858 | if ((t = pool_alloc(task)) == NULL) { |
| 4859 | Alert("parsing [%s:%d] : out of memory.\n", file, linenum); |
| 4860 | return -1; |
| 4861 | } |
| 4862 | |
| 4863 | t->next = t->prev = t->rqnext = NULL; /* task not in run queue yet */ |
| 4864 | t->wq = LIST_HEAD(wait_queue); /* but already has a wait queue assigned */ |
| 4865 | t->state = TASK_IDLE; |
| 4866 | t->process = process_chk; |
| 4867 | t->context = newsrv; |
| 4868 | |
| 4869 | if (curproxy->state != PR_STDISABLED) { |
| 4870 | tv_delayfrom(&t->expire, &now, newsrv->inter); /* check this every ms */ |
| 4871 | task_queue(t); |
| 4872 | task_wakeup(&rq, t); |
| 4873 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4874 | } |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4875 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4876 | curproxy->nbservers++; |
| 4877 | } |
| 4878 | else if (!strcmp(args[0], "log")) { /* syslog server address */ |
| 4879 | struct sockaddr_in *sa; |
| 4880 | int facility; |
| 4881 | |
| 4882 | if (*(args[1]) && *(args[2]) == 0 && !strcmp(args[1], "global")) { |
| 4883 | curproxy->logfac1 = global.logfac1; |
| 4884 | curproxy->logsrv1 = global.logsrv1; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 4885 | curproxy->loglev1 = global.loglev1; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4886 | curproxy->logfac2 = global.logfac2; |
| 4887 | curproxy->logsrv2 = global.logsrv2; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 4888 | curproxy->loglev2 = global.loglev2; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4889 | } |
| 4890 | else if (*(args[1]) && *(args[2])) { |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 4891 | int level; |
| 4892 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4893 | for (facility = 0; facility < NB_LOG_FACILITIES; facility++) |
| 4894 | if (!strcmp(log_facilities[facility], args[2])) |
| 4895 | break; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4896 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4897 | if (facility >= NB_LOG_FACILITIES) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4898 | Alert("parsing [%s:%d] : unknown log facility '%s'\n", file, linenum, args[2]); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4899 | exit(1); |
| 4900 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4901 | |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 4902 | level = 7; /* max syslog level = debug */ |
| 4903 | if (*(args[3])) { |
| 4904 | while (level >= 0 && strcmp(log_levels[level], args[3])) |
| 4905 | level--; |
| 4906 | if (level < 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4907 | Alert("parsing [%s:%d] : unknown optional log level '%s'\n", file, linenum, args[3]); |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 4908 | exit(1); |
| 4909 | } |
| 4910 | } |
| 4911 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4912 | sa = str2sa(args[1]); |
| 4913 | if (!sa->sin_port) |
| 4914 | sa->sin_port = htons(SYSLOG_PORT); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4915 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4916 | if (curproxy->logfac1 == -1) { |
| 4917 | curproxy->logsrv1 = *sa; |
| 4918 | curproxy->logfac1 = facility; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 4919 | curproxy->loglev1 = level; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4920 | } |
| 4921 | else if (curproxy->logfac2 == -1) { |
| 4922 | curproxy->logsrv2 = *sa; |
| 4923 | curproxy->logfac2 = facility; |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 4924 | curproxy->loglev2 = level; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4925 | } |
| 4926 | else { |
| 4927 | Alert("parsing [%s:%d] : too many syslog servers\n", file, linenum); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4928 | return -1; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 4929 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4930 | } |
| 4931 | else { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4932 | Alert("parsing [%s:%d] : 'log' expects either <address[:port]> and <facility> or 'global' as arguments.\n", |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4933 | file, linenum); |
| 4934 | return -1; |
| 4935 | } |
| 4936 | } |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 4937 | else if (!strcmp(args[0], "source")) { /* address to which we bind when connecting */ |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4938 | if (!*args[1]) { |
| 4939 | Alert("parsing [%s:%d] : '%s' expects <addr>[:<port>] as argument.\n", |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4940 | file, linenum, "source"); |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 4941 | return -1; |
| 4942 | } |
| 4943 | |
| 4944 | curproxy->source_addr = *str2sa(args[1]); |
| 4945 | curproxy->options |= PR_O_BIND_SRC; |
| 4946 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4947 | else if (!strcmp(args[0], "cliexp") || !strcmp(args[0], "reqrep")) { /* replace request header from a regex */ |
| 4948 | regex_t *preg; |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4949 | if (curproxy == &defproxy) { |
| 4950 | Alert("parsing [%s:%d] : '%s' not allowed in 'defaults' section.\n", file, linenum, args[0]); |
| 4951 | return -1; |
| 4952 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4953 | |
| 4954 | if (*(args[1]) == 0 || *(args[2]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4955 | Alert("parsing [%s:%d] : '%s' expects <search> and <replace> as arguments.\n", |
| 4956 | file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4957 | return -1; |
| 4958 | } |
| 4959 | |
| 4960 | preg = calloc(1, sizeof(regex_t)); |
| 4961 | if (regcomp(preg, args[1], REG_EXTENDED) != 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4962 | Alert("parsing [%s:%d] : bad regular expression '%s'.\n", file, linenum, args[1]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4963 | return -1; |
| 4964 | } |
| 4965 | |
| 4966 | chain_regex(&curproxy->req_exp, preg, ACT_REPLACE, strdup(args[2])); |
| 4967 | } |
| 4968 | else if (!strcmp(args[0], "reqdel")) { /* delete request header from a regex */ |
| 4969 | regex_t *preg; |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4970 | if (curproxy == &defproxy) { |
| 4971 | Alert("parsing [%s:%d] : '%s' not allowed in 'defaults' section.\n", file, linenum, args[0]); |
| 4972 | return -1; |
| 4973 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4974 | |
| 4975 | if (*(args[1]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4976 | Alert("parsing [%s:%d] : '%s' expects <regex> as an argument.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4977 | return -1; |
| 4978 | } |
| 4979 | |
| 4980 | preg = calloc(1, sizeof(regex_t)); |
| 4981 | if (regcomp(preg, args[1], REG_EXTENDED) != 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4982 | Alert("parsing [%s:%d] : bad regular expression '%s'.\n", file, linenum, args[1]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4983 | return -1; |
| 4984 | } |
| 4985 | |
| 4986 | chain_regex(&curproxy->req_exp, preg, ACT_REMOVE, NULL); |
| 4987 | } |
| 4988 | else if (!strcmp(args[0], "reqdeny")) { /* deny a request if a header matches this regex */ |
| 4989 | regex_t *preg; |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 4990 | if (curproxy == &defproxy) { |
| 4991 | Alert("parsing [%s:%d] : '%s' not allowed in 'defaults' section.\n", file, linenum, args[0]); |
| 4992 | return -1; |
| 4993 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4994 | |
| 4995 | if (*(args[1]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 4996 | Alert("parsing [%s:%d] : '%s' expects <regex> as an argument.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 4997 | return -1; |
| 4998 | } |
| 4999 | |
| 5000 | preg = calloc(1, sizeof(regex_t)); |
| 5001 | if (regcomp(preg, args[1], REG_EXTENDED) != 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5002 | Alert("parsing [%s:%d] : bad regular expression '%s'.\n", file, linenum, args[1]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5003 | return -1; |
| 5004 | } |
| 5005 | |
| 5006 | chain_regex(&curproxy->req_exp, preg, ACT_DENY, NULL); |
| 5007 | } |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5008 | else if (!strcmp(args[0], "reqpass")) { /* pass this header without allowing or denying the request */ |
| 5009 | regex_t *preg; |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 5010 | if (curproxy == &defproxy) { |
| 5011 | Alert("parsing [%s:%d] : '%s' not allowed in 'defaults' section.\n", file, linenum, args[0]); |
| 5012 | return -1; |
| 5013 | } |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5014 | |
| 5015 | if (*(args[1]) == 0) { |
| 5016 | Alert("parsing [%s:%d] : '%s' expects <regex> as an argument.\n", file, linenum, args[0]); |
| 5017 | return -1; |
| 5018 | } |
| 5019 | |
| 5020 | preg = calloc(1, sizeof(regex_t)); |
| 5021 | if (regcomp(preg, args[1], REG_EXTENDED) != 0) { |
| 5022 | Alert("parsing [%s:%d] : bad regular expression '%s'.\n", file, linenum, args[1]); |
| 5023 | return -1; |
| 5024 | } |
| 5025 | |
| 5026 | chain_regex(&curproxy->req_exp, preg, ACT_PASS, NULL); |
| 5027 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5028 | else if (!strcmp(args[0], "reqallow")) { /* allow a request if a header matches this regex */ |
| 5029 | regex_t *preg; |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 5030 | if (curproxy == &defproxy) { |
| 5031 | Alert("parsing [%s:%d] : '%s' not allowed in 'defaults' section.\n", file, linenum, args[0]); |
| 5032 | return -1; |
| 5033 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5034 | |
| 5035 | if (*(args[1]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5036 | Alert("parsing [%s:%d] : '%s' expects <regex> as an argument.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5037 | return -1; |
| 5038 | } |
| 5039 | |
| 5040 | preg = calloc(1, sizeof(regex_t)); |
| 5041 | if (regcomp(preg, args[1], REG_EXTENDED) != 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5042 | Alert("parsing [%s:%d] : bad regular expression '%s'.\n", file, linenum, args[1]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5043 | return -1; |
| 5044 | } |
| 5045 | |
| 5046 | chain_regex(&curproxy->req_exp, preg, ACT_ALLOW, NULL); |
| 5047 | } |
| 5048 | else if (!strcmp(args[0], "reqirep")) { /* replace request header from a regex, ignoring case */ |
| 5049 | regex_t *preg; |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 5050 | if (curproxy == &defproxy) { |
| 5051 | Alert("parsing [%s:%d] : '%s' not allowed in 'defaults' section.\n", file, linenum, args[0]); |
| 5052 | return -1; |
| 5053 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5054 | |
| 5055 | if (*(args[1]) == 0 || *(args[2]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5056 | Alert("parsing [%s:%d] : '%s' expects <search> and <replace> as arguments.\n", |
| 5057 | file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5058 | return -1; |
| 5059 | } |
| 5060 | |
| 5061 | preg = calloc(1, sizeof(regex_t)); |
| 5062 | if (regcomp(preg, args[1], REG_EXTENDED | REG_ICASE) != 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5063 | Alert("parsing [%s:%d] : bad regular expression '%s'.\n", file, linenum, args[1]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5064 | return -1; |
| 5065 | } |
| 5066 | |
| 5067 | chain_regex(&curproxy->req_exp, preg, ACT_REPLACE, strdup(args[2])); |
| 5068 | } |
| 5069 | else if (!strcmp(args[0], "reqidel")) { /* delete request header from a regex ignoring case */ |
| 5070 | regex_t *preg; |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 5071 | if (curproxy == &defproxy) { |
| 5072 | Alert("parsing [%s:%d] : '%s' not allowed in 'defaults' section.\n", file, linenum, args[0]); |
| 5073 | return -1; |
| 5074 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5075 | |
| 5076 | if (*(args[1]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5077 | Alert("parsing [%s:%d] : '%s' expects <regex> as an argument.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5078 | return -1; |
| 5079 | } |
| 5080 | |
| 5081 | preg = calloc(1, sizeof(regex_t)); |
| 5082 | if (regcomp(preg, args[1], REG_EXTENDED | REG_ICASE) != 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5083 | Alert("parsing [%s:%d] : bad regular expression '%s'.\n", file, linenum, args[1]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5084 | return -1; |
| 5085 | } |
| 5086 | |
| 5087 | chain_regex(&curproxy->req_exp, preg, ACT_REMOVE, NULL); |
| 5088 | } |
| 5089 | else if (!strcmp(args[0], "reqideny")) { /* deny a request if a header matches this regex ignoring case */ |
| 5090 | regex_t *preg; |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 5091 | if (curproxy == &defproxy) { |
| 5092 | Alert("parsing [%s:%d] : '%s' not allowed in 'defaults' section.\n", file, linenum, args[0]); |
| 5093 | return -1; |
| 5094 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5095 | |
| 5096 | if (*(args[1]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5097 | Alert("parsing [%s:%d] : '%s' expects <regex> as an argument.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5098 | return -1; |
| 5099 | } |
| 5100 | |
| 5101 | preg = calloc(1, sizeof(regex_t)); |
| 5102 | if (regcomp(preg, args[1], REG_EXTENDED | REG_ICASE) != 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5103 | Alert("parsing [%s:%d] : bad regular expression '%s'.\n", file, linenum, args[1]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5104 | return -1; |
| 5105 | } |
| 5106 | |
| 5107 | chain_regex(&curproxy->req_exp, preg, ACT_DENY, NULL); |
| 5108 | } |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5109 | else if (!strcmp(args[0], "reqipass")) { /* pass this header without allowing or denying the request */ |
| 5110 | regex_t *preg; |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 5111 | if (curproxy == &defproxy) { |
| 5112 | Alert("parsing [%s:%d] : '%s' not allowed in 'defaults' section.\n", file, linenum, args[0]); |
| 5113 | return -1; |
| 5114 | } |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5115 | |
| 5116 | if (*(args[1]) == 0) { |
| 5117 | Alert("parsing [%s:%d] : '%s' expects <regex> as an argument.\n", file, linenum, args[0]); |
| 5118 | return -1; |
| 5119 | } |
| 5120 | |
| 5121 | preg = calloc(1, sizeof(regex_t)); |
| 5122 | if (regcomp(preg, args[1], REG_EXTENDED | REG_ICASE) != 0) { |
| 5123 | Alert("parsing [%s:%d] : bad regular expression '%s'.\n", file, linenum, args[1]); |
| 5124 | return -1; |
| 5125 | } |
| 5126 | |
| 5127 | chain_regex(&curproxy->req_exp, preg, ACT_PASS, NULL); |
| 5128 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5129 | else if (!strcmp(args[0], "reqiallow")) { /* allow a request if a header matches this regex ignoring case */ |
| 5130 | regex_t *preg; |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 5131 | if (curproxy == &defproxy) { |
| 5132 | Alert("parsing [%s:%d] : '%s' not allowed in 'defaults' section.\n", file, linenum, args[0]); |
| 5133 | return -1; |
| 5134 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5135 | |
| 5136 | if (*(args[1]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5137 | Alert("parsing [%s:%d] : '%s' expects <regex> as an argument.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5138 | return -1; |
| 5139 | } |
| 5140 | |
| 5141 | preg = calloc(1, sizeof(regex_t)); |
| 5142 | if (regcomp(preg, args[1], REG_EXTENDED | REG_ICASE) != 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5143 | Alert("parsing [%s:%d] : bad regular expression '%s'.\n", file, linenum, args[1]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5144 | return -1; |
| 5145 | } |
| 5146 | |
| 5147 | chain_regex(&curproxy->req_exp, preg, ACT_ALLOW, NULL); |
| 5148 | } |
| 5149 | else if (!strcmp(args[0], "reqadd")) { /* add request header */ |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 5150 | if (curproxy == &defproxy) { |
| 5151 | Alert("parsing [%s:%d] : '%s' not allowed in 'defaults' section.\n", file, linenum, args[0]); |
| 5152 | return -1; |
| 5153 | } |
| 5154 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5155 | if (curproxy->nb_reqadd >= MAX_NEWHDR) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5156 | Alert("parsing [%s:%d] : too many '%s'. Continuing.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5157 | return 0; |
| 5158 | } |
| 5159 | |
| 5160 | if (*(args[1]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5161 | Alert("parsing [%s:%d] : '%s' expects <header> as an argument.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5162 | return -1; |
| 5163 | } |
| 5164 | |
| 5165 | curproxy->req_add[curproxy->nb_reqadd++] = strdup(args[1]); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5166 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5167 | else if (!strcmp(args[0], "srvexp") || !strcmp(args[0], "rsprep")) { /* replace response header from a regex */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5168 | regex_t *preg; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5169 | |
| 5170 | if (*(args[1]) == 0 || *(args[2]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5171 | Alert("parsing [%s:%d] : '%s' expects <search> and <replace> as arguments.\n", |
| 5172 | file, linenum, args[0]); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5173 | return -1; |
| 5174 | } |
| 5175 | |
| 5176 | preg = calloc(1, sizeof(regex_t)); |
| 5177 | if (regcomp(preg, args[1], REG_EXTENDED) != 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5178 | Alert("parsing [%s:%d] : bad regular expression '%s'.\n", file, linenum, args[1]); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5179 | return -1; |
| 5180 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5181 | |
| 5182 | chain_regex(&curproxy->rsp_exp, preg, ACT_REPLACE, strdup(args[2])); |
| 5183 | } |
| 5184 | else if (!strcmp(args[0], "rspdel")) { /* delete response header from a regex */ |
| 5185 | regex_t *preg; |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 5186 | if (curproxy == &defproxy) { |
| 5187 | Alert("parsing [%s:%d] : '%s' not allowed in 'defaults' section.\n", file, linenum, args[0]); |
| 5188 | return -1; |
| 5189 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5190 | |
| 5191 | if (*(args[1]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5192 | Alert("parsing [%s:%d] : '%s' expects <search> as an argument.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5193 | return -1; |
| 5194 | } |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 5195 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5196 | preg = calloc(1, sizeof(regex_t)); |
| 5197 | if (regcomp(preg, args[1], REG_EXTENDED) != 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5198 | Alert("parsing [%s:%d] : bad regular expression '%s'.\n", file, linenum, args[1]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5199 | return -1; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5200 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5201 | |
| 5202 | chain_regex(&curproxy->rsp_exp, preg, ACT_REMOVE, strdup(args[2])); |
| 5203 | } |
| 5204 | else if (!strcmp(args[0], "rspirep")) { /* replace response header from a regex ignoring case */ |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 5205 | regex_t *preg; |
| 5206 | if (curproxy == &defproxy) { |
| 5207 | Alert("parsing [%s:%d] : '%s' not allowed in 'defaults' section.\n", file, linenum, args[0]); |
| 5208 | return -1; |
| 5209 | } |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 5210 | |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 5211 | if (*(args[1]) == 0 || *(args[2]) == 0) { |
| 5212 | Alert("parsing [%s:%d] : '%s' expects <search> and <replace> as arguments.\n", |
| 5213 | file, linenum, args[0]); |
| 5214 | return -1; |
| 5215 | } |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 5216 | |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 5217 | preg = calloc(1, sizeof(regex_t)); |
| 5218 | if (regcomp(preg, args[1], REG_EXTENDED | REG_ICASE) != 0) { |
| 5219 | Alert("parsing [%s:%d] : bad regular expression '%s'.\n", file, linenum, args[1]); |
| 5220 | return -1; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5221 | } |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 5222 | |
| 5223 | chain_regex(&curproxy->rsp_exp, preg, ACT_REPLACE, strdup(args[2])); |
| 5224 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5225 | else if (!strcmp(args[0], "rspidel")) { /* delete response header from a regex ignoring case */ |
| 5226 | regex_t *preg; |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 5227 | if (curproxy == &defproxy) { |
| 5228 | Alert("parsing [%s:%d] : '%s' not allowed in 'defaults' section.\n", file, linenum, args[0]); |
| 5229 | return -1; |
| 5230 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5231 | |
| 5232 | if (*(args[1]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5233 | Alert("parsing [%s:%d] : '%s' expects <search> as an argument.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5234 | return -1; |
| 5235 | } |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 5236 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5237 | preg = calloc(1, sizeof(regex_t)); |
| 5238 | if (regcomp(preg, args[1], REG_EXTENDED | REG_ICASE) != 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5239 | Alert("parsing [%s:%d] : bad regular expression '%s'.\n", file, linenum, args[1]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5240 | return -1; |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 5241 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5242 | |
| 5243 | chain_regex(&curproxy->rsp_exp, preg, ACT_REMOVE, strdup(args[2])); |
| 5244 | } |
| 5245 | else if (!strcmp(args[0], "rspadd")) { /* add response header */ |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 5246 | if (curproxy == &defproxy) { |
| 5247 | Alert("parsing [%s:%d] : '%s' not allowed in 'defaults' section.\n", file, linenum, args[0]); |
| 5248 | return -1; |
| 5249 | } |
| 5250 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5251 | if (curproxy->nb_rspadd >= MAX_NEWHDR) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5252 | Alert("parsing [%s:%d] : too many '%s'. Continuing.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5253 | return 0; |
| 5254 | } |
| 5255 | |
| 5256 | if (*(args[1]) == 0) { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5257 | Alert("parsing [%s:%d] : '%s' expects <header> as an argument.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5258 | return -1; |
| 5259 | } |
| 5260 | |
| 5261 | curproxy->rsp_add[curproxy->nb_rspadd++] = strdup(args[1]); |
| 5262 | } |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 5263 | else if (!strcmp(args[0], "errorloc")) { /* error location */ |
| 5264 | int errnum; |
| 5265 | char *err; |
| 5266 | |
willy tarreau | eedaa9f | 2005-12-17 14:08:03 +0100 | [diff] [blame^] | 5267 | // if (curproxy == &defproxy) { |
| 5268 | // Alert("parsing [%s:%d] : '%s' not allowed in 'defaults' section.\n", file, linenum, args[0]); |
| 5269 | // return -1; |
| 5270 | // } |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 5271 | |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 5272 | if (*(args[2]) == 0) { |
| 5273 | Alert("parsing [%s:%d] : <errorloc> expects <error> and <url> as arguments.\n", file, linenum); |
| 5274 | return -1; |
| 5275 | } |
| 5276 | |
| 5277 | errnum = atol(args[1]); |
| 5278 | err = malloc(strlen(HTTP_302) + strlen(args[2]) + 5); |
| 5279 | sprintf(err, "%s%s\r\n\r\n", HTTP_302, args[2]); |
| 5280 | |
| 5281 | if (errnum == 400) { |
| 5282 | if (curproxy->errmsg.msg400) { |
willy tarreau | eedaa9f | 2005-12-17 14:08:03 +0100 | [diff] [blame^] | 5283 | //Warning("parsing [%s:%d] : error %d already defined.\n", file, linenum, errnum); |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 5284 | free(curproxy->errmsg.msg400); |
| 5285 | } |
| 5286 | curproxy->errmsg.msg400 = err; |
| 5287 | curproxy->errmsg.len400 = strlen(err); |
| 5288 | } |
| 5289 | else if (errnum == 403) { |
| 5290 | if (curproxy->errmsg.msg403) { |
willy tarreau | eedaa9f | 2005-12-17 14:08:03 +0100 | [diff] [blame^] | 5291 | //Warning("parsing [%s:%d] : error %d already defined.\n", file, linenum, errnum); |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 5292 | free(curproxy->errmsg.msg403); |
| 5293 | } |
| 5294 | curproxy->errmsg.msg403 = err; |
| 5295 | curproxy->errmsg.len403 = strlen(err); |
| 5296 | } |
| 5297 | else if (errnum == 408) { |
| 5298 | if (curproxy->errmsg.msg408) { |
willy tarreau | eedaa9f | 2005-12-17 14:08:03 +0100 | [diff] [blame^] | 5299 | //Warning("parsing [%s:%d] : error %d already defined.\n", file, linenum, errnum); |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 5300 | free(curproxy->errmsg.msg408); |
| 5301 | } |
| 5302 | curproxy->errmsg.msg408 = err; |
| 5303 | curproxy->errmsg.len408 = strlen(err); |
| 5304 | } |
| 5305 | else if (errnum == 500) { |
| 5306 | if (curproxy->errmsg.msg500) { |
willy tarreau | eedaa9f | 2005-12-17 14:08:03 +0100 | [diff] [blame^] | 5307 | //Warning("parsing [%s:%d] : error %d already defined.\n", file, linenum, errnum); |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 5308 | free(curproxy->errmsg.msg500); |
| 5309 | } |
| 5310 | curproxy->errmsg.msg500 = err; |
| 5311 | curproxy->errmsg.len500 = strlen(err); |
| 5312 | } |
| 5313 | else if (errnum == 502) { |
| 5314 | if (curproxy->errmsg.msg502) { |
willy tarreau | eedaa9f | 2005-12-17 14:08:03 +0100 | [diff] [blame^] | 5315 | //Warning("parsing [%s:%d] : error %d already defined.\n", file, linenum, errnum); |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 5316 | free(curproxy->errmsg.msg502); |
| 5317 | } |
| 5318 | curproxy->errmsg.msg502 = err; |
| 5319 | curproxy->errmsg.len502 = strlen(err); |
| 5320 | } |
| 5321 | else if (errnum == 503) { |
| 5322 | if (curproxy->errmsg.msg503) { |
willy tarreau | eedaa9f | 2005-12-17 14:08:03 +0100 | [diff] [blame^] | 5323 | //Warning("parsing [%s:%d] : error %d already defined.\n", file, linenum, errnum); |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 5324 | free(curproxy->errmsg.msg503); |
| 5325 | } |
| 5326 | curproxy->errmsg.msg503 = err; |
| 5327 | curproxy->errmsg.len503 = strlen(err); |
| 5328 | } |
| 5329 | else if (errnum == 504) { |
| 5330 | if (curproxy->errmsg.msg504) { |
willy tarreau | eedaa9f | 2005-12-17 14:08:03 +0100 | [diff] [blame^] | 5331 | //Warning("parsing [%s:%d] : error %d already defined.\n", file, linenum, errnum); |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 5332 | free(curproxy->errmsg.msg504); |
| 5333 | } |
| 5334 | curproxy->errmsg.msg504 = err; |
| 5335 | curproxy->errmsg.len504 = strlen(err); |
| 5336 | } |
| 5337 | else { |
| 5338 | Warning("parsing [%s:%d] : error %d relocation will be ignored.\n", file, linenum, errnum); |
| 5339 | free(err); |
| 5340 | } |
| 5341 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5342 | else { |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5343 | Alert("parsing [%s:%d] : unknown keyword '%s' in '%s' section\n", file, linenum, args[0], "listen"); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5344 | return -1; |
| 5345 | } |
| 5346 | return 0; |
| 5347 | } |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 5348 | |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 5349 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5350 | /* |
| 5351 | * This function reads and parses the configuration file given in the argument. |
| 5352 | * returns 0 if OK, -1 if error. |
| 5353 | */ |
| 5354 | int readcfgfile(char *file) { |
| 5355 | char thisline[256]; |
| 5356 | char *line; |
| 5357 | FILE *f; |
| 5358 | int linenum = 0; |
| 5359 | char *end; |
| 5360 | char *args[MAX_LINE_ARGS]; |
| 5361 | int arg; |
| 5362 | int cfgerr = 0; |
| 5363 | int confsect = CFG_NONE; |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 5364 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5365 | struct proxy *curproxy = NULL; |
| 5366 | struct server *newsrv = NULL; |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 5367 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5368 | if ((f=fopen(file,"r")) == NULL) |
| 5369 | return -1; |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 5370 | |
willy tarreau | eedaa9f | 2005-12-17 14:08:03 +0100 | [diff] [blame^] | 5371 | init_default_instance(); |
| 5372 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5373 | while (fgets(line = thisline, sizeof(thisline), f) != NULL) { |
| 5374 | linenum++; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 5375 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5376 | end = line + strlen(line); |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 5377 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5378 | /* skip leading spaces */ |
willy tarreau | c29948c | 2005-12-17 13:10:27 +0100 | [diff] [blame] | 5379 | while (isspace((int)*line)) |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5380 | line++; |
| 5381 | |
| 5382 | arg = 0; |
| 5383 | args[arg] = line; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5384 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5385 | while (*line && arg < MAX_LINE_ARGS) { |
| 5386 | /* first, we'll replace \\, \<space>, \#, \r, \n, \t, \xXX with their |
| 5387 | * C equivalent value. Other combinations left unchanged (eg: \1). |
| 5388 | */ |
| 5389 | if (*line == '\\') { |
| 5390 | int skip = 0; |
| 5391 | if (line[1] == ' ' || line[1] == '\\' || line[1] == '#') { |
| 5392 | *line = line[1]; |
| 5393 | skip = 1; |
| 5394 | } |
| 5395 | else if (line[1] == 'r') { |
| 5396 | *line = '\r'; |
| 5397 | skip = 1; |
| 5398 | } |
| 5399 | else if (line[1] == 'n') { |
| 5400 | *line = '\n'; |
| 5401 | skip = 1; |
| 5402 | } |
| 5403 | else if (line[1] == 't') { |
| 5404 | *line = '\t'; |
| 5405 | skip = 1; |
| 5406 | } |
| 5407 | else if (line[1] == 'x' && (line + 3 < end )) { |
| 5408 | unsigned char hex1, hex2; |
| 5409 | hex1 = toupper(line[2]) - '0'; hex2 = toupper(line[3]) - '0'; |
| 5410 | if (hex1 > 9) hex1 -= 'A' - '9' - 1; |
| 5411 | if (hex2 > 9) hex2 -= 'A' - '9' - 1; |
| 5412 | *line = (hex1<<4) + hex2; |
| 5413 | skip = 3; |
| 5414 | } |
| 5415 | if (skip) { |
| 5416 | memmove(line + 1, line + 1 + skip, end - (line + skip + 1)); |
| 5417 | end -= skip; |
| 5418 | } |
| 5419 | line++; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5420 | } |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 5421 | else if (*line == '#' || *line == '\n' || *line == '\r') { |
| 5422 | /* end of string, end of loop */ |
| 5423 | *line = 0; |
| 5424 | break; |
| 5425 | } |
willy tarreau | c29948c | 2005-12-17 13:10:27 +0100 | [diff] [blame] | 5426 | else if (isspace((int)*line)) { |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5427 | /* a non-escaped space is an argument separator */ |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 5428 | *line++ = 0; |
willy tarreau | c29948c | 2005-12-17 13:10:27 +0100 | [diff] [blame] | 5429 | while (isspace((int)*line)) |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 5430 | line++; |
| 5431 | args[++arg] = line; |
| 5432 | } |
| 5433 | else { |
| 5434 | line++; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5435 | } |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 5436 | } |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 5437 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5438 | /* empty line */ |
| 5439 | if (!**args) |
| 5440 | continue; |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 5441 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5442 | /* zero out remaining args */ |
| 5443 | while (++arg < MAX_LINE_ARGS) { |
| 5444 | args[arg] = line; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 5445 | } |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 5446 | |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 5447 | if (!strcmp(args[0], "listen") || !strcmp(args[0], "defaults")) /* new proxy */ |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5448 | confsect = CFG_LISTEN; |
| 5449 | else if (!strcmp(args[0], "global")) /* global config */ |
| 5450 | confsect = CFG_GLOBAL; |
| 5451 | /* else it's a section keyword */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 5452 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5453 | switch (confsect) { |
| 5454 | case CFG_LISTEN: |
| 5455 | if (cfg_parse_listen(file, linenum, args) < 0) |
| 5456 | return -1; |
| 5457 | break; |
| 5458 | case CFG_GLOBAL: |
| 5459 | if (cfg_parse_global(file, linenum, args) < 0) |
| 5460 | return -1; |
| 5461 | break; |
| 5462 | default: |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5463 | Alert("parsing [%s:%d] : unknown keyword '%s' out of section.\n", file, linenum, args[0]); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5464 | return -1; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5465 | } |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5466 | |
| 5467 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5468 | } |
| 5469 | fclose(f); |
| 5470 | |
| 5471 | /* |
| 5472 | * Now, check for the integrity of all that we have collected. |
| 5473 | */ |
| 5474 | |
| 5475 | if ((curproxy = proxy) == NULL) { |
| 5476 | Alert("parsing %s : no <listen> line. Nothing to do !\n", |
| 5477 | file); |
| 5478 | return -1; |
| 5479 | } |
| 5480 | |
| 5481 | while (curproxy != NULL) { |
willy tarreau | ef900ab | 2005-12-17 12:52:52 +0100 | [diff] [blame] | 5482 | if (curproxy->state == PR_STDISABLED) { |
| 5483 | curproxy = curproxy->next; |
| 5484 | continue; |
| 5485 | } |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 5486 | if ((curproxy->mode != PR_MODE_HEALTH) && |
| 5487 | !(curproxy->options & (PR_O_TRANSP | PR_O_BALANCE)) && |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 5488 | (*(int *)&curproxy->dispatch_addr.sin_addr == 0)) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 5489 | Alert("parsing %s : listener %s has no dispatch address and is not in transparent or balance mode.\n", |
| 5490 | file, curproxy->id); |
| 5491 | cfgerr++; |
| 5492 | } |
| 5493 | else if ((curproxy->mode != PR_MODE_HEALTH) && (curproxy->options & PR_O_BALANCE)) { |
| 5494 | if (curproxy->options & PR_O_TRANSP) { |
| 5495 | Alert("parsing %s : listener %s cannot use both transparent and balance mode.\n", |
| 5496 | file, curproxy->id); |
| 5497 | cfgerr++; |
| 5498 | } |
| 5499 | else if (curproxy->srv == NULL) { |
| 5500 | Alert("parsing %s : listener %s needs at least 1 server in balance mode.\n", |
| 5501 | file, curproxy->id); |
| 5502 | cfgerr++; |
| 5503 | } |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 5504 | else if (*(int *)&curproxy->dispatch_addr.sin_addr != 0) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 5505 | Warning("parsing %s : dispatch address of listener %s will be ignored in balance mode.\n", |
| 5506 | file, curproxy->id); |
| 5507 | } |
| 5508 | } |
| 5509 | else if (curproxy->mode == PR_MODE_TCP || curproxy->mode == PR_MODE_HEALTH) { /* TCP PROXY or HEALTH CHECK */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5510 | if (curproxy->cookie_name != NULL) { |
| 5511 | Warning("parsing %s : cookie will be ignored for listener %s.\n", |
| 5512 | file, curproxy->id); |
| 5513 | } |
| 5514 | if ((newsrv = curproxy->srv) != NULL) { |
| 5515 | Warning("parsing %s : servers will be ignored for listener %s.\n", |
| 5516 | file, curproxy->id); |
| 5517 | } |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 5518 | if (curproxy->rsp_exp != NULL) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5519 | Warning("parsing %s : server regular expressions will be ignored for listener %s.\n", |
| 5520 | file, curproxy->id); |
| 5521 | } |
willy tarreau | e39cd13 | 2005-12-17 13:00:18 +0100 | [diff] [blame] | 5522 | if (curproxy->req_exp != NULL) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5523 | Warning("parsing %s : client regular expressions will be ignored for listener %s.\n", |
| 5524 | file, curproxy->id); |
| 5525 | } |
| 5526 | } |
| 5527 | else if (curproxy->mode == PR_MODE_HTTP) { /* HTTP PROXY */ |
| 5528 | if ((curproxy->cookie_name != NULL) && ((newsrv = curproxy->srv) == NULL)) { |
| 5529 | Alert("parsing %s : HTTP proxy %s has a cookie but no server list !\n", |
| 5530 | file, curproxy->id); |
| 5531 | cfgerr++; |
| 5532 | } |
| 5533 | else { |
| 5534 | while (newsrv != NULL) { |
| 5535 | /* nothing to check for now */ |
| 5536 | newsrv = newsrv->next; |
| 5537 | } |
| 5538 | } |
| 5539 | } |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 5540 | if (curproxy->errmsg.msg400 == NULL) { |
| 5541 | curproxy->errmsg.msg400 = (char *)HTTP_400; |
| 5542 | curproxy->errmsg.len400 = strlen(HTTP_400); |
| 5543 | } |
| 5544 | if (curproxy->errmsg.msg403 == NULL) { |
| 5545 | curproxy->errmsg.msg403 = (char *)HTTP_403; |
| 5546 | curproxy->errmsg.len403 = strlen(HTTP_403); |
| 5547 | } |
| 5548 | if (curproxy->errmsg.msg408 == NULL) { |
| 5549 | curproxy->errmsg.msg408 = (char *)HTTP_408; |
| 5550 | curproxy->errmsg.len408 = strlen(HTTP_408); |
| 5551 | } |
| 5552 | if (curproxy->errmsg.msg500 == NULL) { |
| 5553 | curproxy->errmsg.msg500 = (char *)HTTP_500; |
| 5554 | curproxy->errmsg.len500 = strlen(HTTP_500); |
| 5555 | } |
| 5556 | if (curproxy->errmsg.msg502 == NULL) { |
| 5557 | curproxy->errmsg.msg502 = (char *)HTTP_502; |
| 5558 | curproxy->errmsg.len502 = strlen(HTTP_502); |
| 5559 | } |
| 5560 | if (curproxy->errmsg.msg503 == NULL) { |
| 5561 | curproxy->errmsg.msg503 = (char *)HTTP_503; |
| 5562 | curproxy->errmsg.len503 = strlen(HTTP_503); |
| 5563 | } |
| 5564 | if (curproxy->errmsg.msg504 == NULL) { |
| 5565 | curproxy->errmsg.msg504 = (char *)HTTP_504; |
| 5566 | curproxy->errmsg.len504 = strlen(HTTP_504); |
| 5567 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5568 | curproxy = curproxy->next; |
| 5569 | } |
| 5570 | if (cfgerr > 0) { |
| 5571 | Alert("Errors found in configuration file, aborting.\n"); |
| 5572 | return -1; |
| 5573 | } |
| 5574 | else |
| 5575 | return 0; |
| 5576 | } |
| 5577 | |
| 5578 | |
| 5579 | /* |
| 5580 | * This function initializes all the necessary variables. It only returns |
| 5581 | * if everything is OK. If something fails, it exits. |
| 5582 | */ |
| 5583 | void init(int argc, char **argv) { |
| 5584 | int i; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5585 | int arg_mode = 0; /* MODE_DEBUG, ... */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5586 | char *old_argv = *argv; |
| 5587 | char *tmp; |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5588 | int cfg_maxconn = 0; /* # of simultaneous connections, (-n) */ |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5589 | |
| 5590 | if (1<<INTBITS != sizeof(int)*8) { |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 5591 | qfprintf(stderr, |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5592 | "Error: wrong architecture. Recompile so that sizeof(int)=%d\n", |
| 5593 | sizeof(int)*8); |
| 5594 | exit(1); |
| 5595 | } |
| 5596 | |
| 5597 | pid = getpid(); |
| 5598 | progname = *argv; |
| 5599 | while ((tmp = strchr(progname, '/')) != NULL) |
| 5600 | progname = tmp + 1; |
| 5601 | |
| 5602 | argc--; argv++; |
| 5603 | while (argc > 0) { |
| 5604 | char *flag; |
| 5605 | |
| 5606 | if (**argv == '-') { |
| 5607 | flag = *argv+1; |
| 5608 | |
| 5609 | /* 1 arg */ |
| 5610 | if (*flag == 'v') { |
| 5611 | display_version(); |
| 5612 | exit(0); |
| 5613 | } |
| 5614 | else if (*flag == 'd') |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5615 | arg_mode |= MODE_DEBUG; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5616 | else if (*flag == 'D') |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5617 | arg_mode |= MODE_DAEMON | MODE_QUIET; |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 5618 | else if (*flag == 'q') |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5619 | arg_mode |= MODE_QUIET; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5620 | #if STATTIME > 0 |
| 5621 | else if (*flag == 's') |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5622 | arg_mode |= MODE_STATS; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5623 | else if (*flag == 'l') |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5624 | arg_mode |= MODE_LOG; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5625 | #endif |
| 5626 | else { /* >=2 args */ |
| 5627 | argv++; argc--; |
| 5628 | if (argc == 0) |
| 5629 | usage(old_argv); |
| 5630 | |
| 5631 | switch (*flag) { |
| 5632 | case 'n' : cfg_maxconn = atol(*argv); break; |
| 5633 | case 'N' : cfg_maxpconn = atol(*argv); break; |
| 5634 | case 'f' : cfg_cfgfile = *argv; break; |
| 5635 | default: usage(old_argv); |
| 5636 | } |
| 5637 | } |
| 5638 | } |
| 5639 | else |
| 5640 | usage(old_argv); |
| 5641 | argv++; argc--; |
| 5642 | } |
| 5643 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5644 | if (!cfg_cfgfile) |
| 5645 | usage(old_argv); |
| 5646 | |
| 5647 | gethostname(hostname, MAX_HOSTNAME_LEN); |
| 5648 | |
| 5649 | if (readcfgfile(cfg_cfgfile) < 0) { |
| 5650 | Alert("Error reading configuration file : %s\n", cfg_cfgfile); |
| 5651 | exit(1); |
| 5652 | } |
| 5653 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5654 | if (cfg_maxconn > 0) |
| 5655 | global.maxconn = cfg_maxconn; |
| 5656 | |
| 5657 | if (global.maxconn == 0) |
| 5658 | global.maxconn = DEFAULT_MAXCONN; |
| 5659 | |
| 5660 | global.maxsock = global.maxconn * 2; /* each connection needs two sockets */ |
| 5661 | |
| 5662 | if (arg_mode & MODE_DEBUG) { |
| 5663 | /* command line debug mode inhibits configuration mode */ |
| 5664 | global.mode &= ~(MODE_DAEMON | MODE_QUIET); |
| 5665 | } |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 5666 | global.mode |= (arg_mode & (MODE_DAEMON | MODE_QUIET | MODE_DEBUG | MODE_STATS | MODE_LOG)); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5667 | |
| 5668 | if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_QUIET))) { |
| 5669 | Warning("<debug> mode incompatible with <quiet> and <daemon>. Keeping <debug> only.\n"); |
| 5670 | global.mode &= ~(MODE_DAEMON | MODE_QUIET); |
| 5671 | } |
| 5672 | |
| 5673 | if ((global.nbproc > 1) && !(global.mode & MODE_DAEMON)) { |
| 5674 | Warning("<nbproc> is only meaningful in daemon mode. Setting limit to 1 process.\n"); |
| 5675 | global.nbproc = 1; |
| 5676 | } |
| 5677 | |
| 5678 | if (global.nbproc < 1) |
| 5679 | global.nbproc = 1; |
| 5680 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5681 | ReadEvent = (fd_set *)calloc(1, |
| 5682 | sizeof(fd_set) * |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5683 | (global.maxsock + FD_SETSIZE - 1) / FD_SETSIZE); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5684 | WriteEvent = (fd_set *)calloc(1, |
| 5685 | sizeof(fd_set) * |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5686 | (global.maxsock + FD_SETSIZE - 1) / FD_SETSIZE); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5687 | StaticReadEvent = (fd_set *)calloc(1, |
| 5688 | sizeof(fd_set) * |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5689 | (global.maxsock + FD_SETSIZE - 1) / FD_SETSIZE); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5690 | StaticWriteEvent = (fd_set *)calloc(1, |
| 5691 | sizeof(fd_set) * |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5692 | (global.maxsock + FD_SETSIZE - 1) / FD_SETSIZE); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5693 | |
| 5694 | fdtab = (struct fdtab *)calloc(1, |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5695 | sizeof(struct fdtab) * (global.maxsock)); |
| 5696 | for (i = 0; i < global.maxsock; i++) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5697 | fdtab[i].state = FD_STCLOSE; |
| 5698 | } |
| 5699 | } |
| 5700 | |
| 5701 | /* |
| 5702 | * this function starts all the proxies. It returns 0 if OK, -1 if not. |
| 5703 | */ |
| 5704 | int start_proxies() { |
| 5705 | struct proxy *curproxy; |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 5706 | struct listener *listener; |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5707 | int one = 1; |
| 5708 | int fd; |
| 5709 | |
| 5710 | for (curproxy = proxy; curproxy != NULL; curproxy = curproxy->next) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5711 | if (curproxy->state == PR_STDISABLED) |
| 5712 | continue; |
| 5713 | |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 5714 | for (listener = curproxy->listen; listener != NULL; listener = listener->next) { |
| 5715 | if ((fd = listener->fd = |
| 5716 | socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1) { |
| 5717 | Alert("cannot create listening socket for proxy %s. Aborting.\n", |
| 5718 | curproxy->id); |
| 5719 | return -1; |
| 5720 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5721 | |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 5722 | if (fd >= global.maxsock) { |
| 5723 | Alert("socket(): not enough free sockets for proxy %s. Raise -n argument. Aborting.\n", |
| 5724 | curproxy->id); |
| 5725 | close(fd); |
| 5726 | return -1; |
| 5727 | } |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 5728 | |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 5729 | if ((fcntl(fd, F_SETFL, O_NONBLOCK) == -1) || |
| 5730 | (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, |
| 5731 | (char *) &one, sizeof(one)) == -1)) { |
| 5732 | Alert("cannot make socket non-blocking for proxy %s. Aborting.\n", |
| 5733 | curproxy->id); |
| 5734 | close(fd); |
| 5735 | return -1; |
| 5736 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5737 | |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 5738 | if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *) &one, sizeof(one)) == -1) { |
| 5739 | Alert("cannot do so_reuseaddr for proxy %s. Continuing.\n", |
| 5740 | curproxy->id); |
| 5741 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5742 | |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 5743 | if (bind(fd, |
| 5744 | (struct sockaddr *)&listener->addr, |
| 5745 | sizeof(listener->addr)) == -1) { |
| 5746 | Alert("cannot bind socket for proxy %s. Aborting.\n", |
| 5747 | curproxy->id); |
| 5748 | close(fd); |
| 5749 | return -1; |
| 5750 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5751 | |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 5752 | if (listen(fd, curproxy->maxconn) == -1) { |
| 5753 | Alert("cannot listen to socket for proxy %s. Aborting.\n", |
| 5754 | curproxy->id); |
| 5755 | close(fd); |
| 5756 | return -1; |
| 5757 | } |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5758 | |
willy tarreau | a41a8b4 | 2005-12-17 14:02:24 +0100 | [diff] [blame] | 5759 | /* the function for the accept() event */ |
| 5760 | fdtab[fd].read = &event_accept; |
| 5761 | fdtab[fd].write = NULL; /* never called */ |
| 5762 | fdtab[fd].owner = (struct task *)curproxy; /* reference the proxy instead of a task */ |
| 5763 | curproxy->state = PR_STRUN; |
| 5764 | fdtab[fd].state = FD_STLISTEN; |
| 5765 | FD_SET(fd, StaticReadEvent); |
| 5766 | fd_insert(fd); |
| 5767 | listeners++; |
| 5768 | } |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 5769 | send_log(curproxy, LOG_NOTICE, "Proxy %s started.\n", curproxy->id); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5770 | } |
| 5771 | return 0; |
| 5772 | } |
| 5773 | |
| 5774 | |
| 5775 | int main(int argc, char **argv) { |
| 5776 | init(argc, argv); |
| 5777 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5778 | if (global.mode & MODE_QUIET) { |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5779 | /* detach from the tty */ |
willy tarreau | 5cbea6f | 2005-12-17 12:48:26 +0100 | [diff] [blame] | 5780 | fclose(stdin); fclose(stdout); fclose(stderr); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5781 | close(0); close(1); close(2); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5782 | } |
| 5783 | |
| 5784 | signal(SIGQUIT, dump); |
| 5785 | signal(SIGUSR1, sig_soft_stop); |
willy tarreau | 8337c6b | 2005-12-17 13:41:01 +0100 | [diff] [blame] | 5786 | signal(SIGHUP, sig_dump_state); |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5787 | |
| 5788 | /* on very high loads, a sigpipe sometimes happen just between the |
| 5789 | * getsockopt() which tells "it's OK to write", and the following write :-( |
| 5790 | */ |
willy tarreau | 3242e86 | 2005-12-17 12:27:53 +0100 | [diff] [blame] | 5791 | #ifndef MSG_NOSIGNAL |
| 5792 | signal(SIGPIPE, SIG_IGN); |
| 5793 | #endif |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5794 | |
| 5795 | if (start_proxies() < 0) |
| 5796 | exit(1); |
| 5797 | |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5798 | /* open log files */ |
| 5799 | |
| 5800 | /* chroot if needed */ |
| 5801 | if (global.chroot != NULL) { |
| 5802 | if (chroot(global.chroot) == -1) { |
| 5803 | Alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot); |
| 5804 | exit(1); |
| 5805 | } |
| 5806 | chdir("/"); |
| 5807 | } |
| 5808 | |
| 5809 | /* setgid / setuid */ |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5810 | if (global.gid && setgid(global.gid) == -1) { |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5811 | Alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid); |
| 5812 | exit(1); |
| 5813 | } |
| 5814 | |
willy tarreau | 036e1ce | 2005-12-17 13:46:33 +0100 | [diff] [blame] | 5815 | if (global.uid && setuid(global.uid) == -1) { |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5816 | Alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid); |
| 5817 | exit(1); |
| 5818 | } |
| 5819 | |
| 5820 | if (global.mode & MODE_DAEMON) { |
| 5821 | int ret = 0; |
| 5822 | int proc; |
| 5823 | |
| 5824 | /* the father launches the required number of processes */ |
| 5825 | for (proc = 0; proc < global.nbproc; proc++) { |
| 5826 | ret = fork(); |
| 5827 | if (ret < 0) { |
| 5828 | Alert("[%s.main()] Cannot fork.\n", argv[0]); |
| 5829 | exit(1); /* there has been an error */ |
| 5830 | } |
| 5831 | else if (ret == 0) /* child breaks here */ |
| 5832 | break; |
| 5833 | } |
| 5834 | if (proc == global.nbproc) |
| 5835 | exit(0); /* parent must leave */ |
| 5836 | |
willy tarreau | 750a472 | 2005-12-17 13:21:24 +0100 | [diff] [blame] | 5837 | /* if we're NOT in QUIET mode, we should now close the 3 first FDs to ensure |
| 5838 | * that we can detach from the TTY. We MUST NOT do it in other cases since |
| 5839 | * it would have already be done, and 0-2 would have been affected to listening |
| 5840 | * sockets |
| 5841 | */ |
| 5842 | if (!(global.mode & MODE_QUIET)) { |
| 5843 | /* detach from the tty */ |
| 5844 | fclose(stdin); fclose(stdout); fclose(stderr); |
| 5845 | close(0); close(1); close(2); /* close all fd's */ |
| 5846 | global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */ |
| 5847 | } |
willy tarreau | a159808 | 2005-12-17 13:08:06 +0100 | [diff] [blame] | 5848 | pid = getpid(); /* update child's pid */ |
willy tarreau | e867b48 | 2005-12-17 13:28:43 +0100 | [diff] [blame] | 5849 | setsid(); |
willy tarreau | 9fe663a | 2005-12-17 13:02:59 +0100 | [diff] [blame] | 5850 | } |
| 5851 | |
willy tarreau | 0f7af91 | 2005-12-17 12:21:26 +0100 | [diff] [blame] | 5852 | select_loop(); |
| 5853 | |
| 5854 | exit(0); |
| 5855 | } |