Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1 | /* |
| 2 | * HA-Proxy : High Availability-enabled HTTP/TCP proxy |
Willy Tarreau | 7d0aaf3 | 2011-03-10 23:25:56 +0100 | [diff] [blame] | 3 | * Copyright 2000-2011 Willy Tarreau <w@1wt.eu>. |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [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 | * |
| 10 | * Please refer to RFC2068 or RFC2616 for informations about HTTP protocol, and |
| 11 | * RFC2965 for informations about cookies usage. More generally, the IETF HTTP |
| 12 | * Working Group's web site should be consulted for protocol related changes : |
| 13 | * |
| 14 | * http://ftp.ics.uci.edu/pub/ietf/http/ |
| 15 | * |
| 16 | * Pending bugs (may be not fixed because never reproduced) : |
| 17 | * - solaris only : sometimes, an HTTP proxy with only a dispatch address causes |
| 18 | * the proxy to terminate (no core) if the client breaks the connection during |
| 19 | * the response. Seen on 1.1.8pre4, but never reproduced. May not be related to |
| 20 | * the snprintf() bug since requests were simple (GET / HTTP/1.0), but may be |
| 21 | * related to missing setsid() (fixed in 1.1.15) |
| 22 | * - a proxy with an invalid config will prevent the startup even if disabled. |
| 23 | * |
| 24 | * ChangeLog has moved to the CHANGELOG file. |
| 25 | * |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 26 | */ |
| 27 | |
| 28 | #include <stdio.h> |
| 29 | #include <stdlib.h> |
| 30 | #include <unistd.h> |
| 31 | #include <string.h> |
| 32 | #include <ctype.h> |
| 33 | #include <sys/time.h> |
| 34 | #include <sys/types.h> |
| 35 | #include <sys/socket.h> |
| 36 | #include <netinet/tcp.h> |
| 37 | #include <netinet/in.h> |
| 38 | #include <arpa/inet.h> |
| 39 | #include <netdb.h> |
| 40 | #include <fcntl.h> |
| 41 | #include <errno.h> |
| 42 | #include <signal.h> |
| 43 | #include <stdarg.h> |
| 44 | #include <sys/resource.h> |
| 45 | #include <time.h> |
| 46 | #include <syslog.h> |
| 47 | |
| 48 | #ifdef DEBUG_FULL |
| 49 | #include <assert.h> |
| 50 | #endif |
| 51 | |
Willy Tarreau | 2dd0d47 | 2006-06-29 17:53:05 +0200 | [diff] [blame] | 52 | #include <common/appsession.h> |
| 53 | #include <common/base64.h> |
| 54 | #include <common/cfgparse.h> |
| 55 | #include <common/compat.h> |
| 56 | #include <common/config.h> |
| 57 | #include <common/defaults.h> |
Willy Tarreau | d740bab | 2007-10-28 11:14:07 +0100 | [diff] [blame] | 58 | #include <common/errors.h> |
Willy Tarreau | 2dd0d47 | 2006-06-29 17:53:05 +0200 | [diff] [blame] | 59 | #include <common/memory.h> |
| 60 | #include <common/mini-clist.h> |
| 61 | #include <common/regex.h> |
| 62 | #include <common/standard.h> |
| 63 | #include <common/time.h> |
| 64 | #include <common/uri_auth.h> |
| 65 | #include <common/version.h> |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 66 | |
| 67 | #include <types/capture.h> |
| 68 | #include <types/global.h> |
Simon Horman | ac82142 | 2011-07-15 13:14:09 +0900 | [diff] [blame] | 69 | #include <types/proto_tcp.h> |
| 70 | #include <types/acl.h> |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 71 | |
Krzysztof Piotr Oledzki | 9610504 | 2010-01-29 17:50:44 +0100 | [diff] [blame] | 72 | #include <proto/auth.h> |
Willy Tarreau | 0fc45a7 | 2007-06-17 00:36:03 +0200 | [diff] [blame] | 73 | #include <proto/acl.h> |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 74 | #include <proto/backend.h> |
| 75 | #include <proto/buffers.h> |
Krzysztof Oledzki | b304dc7 | 2007-10-14 23:40:01 +0200 | [diff] [blame] | 76 | #include <proto/checks.h> |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 77 | #include <proto/fd.h> |
| 78 | #include <proto/log.h> |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 79 | #include <proto/protocols.h> |
Willy Tarreau | 8058743 | 2006-12-24 17:47:20 +0100 | [diff] [blame] | 80 | #include <proto/proto_http.h> |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 81 | #include <proto/proxy.h> |
| 82 | #include <proto/queue.h> |
| 83 | #include <proto/server.h> |
Willy Tarreau | c6ca1a0 | 2007-05-13 19:43:47 +0200 | [diff] [blame] | 84 | #include <proto/session.h> |
Willy Tarreau | 2985794 | 2009-05-10 09:01:21 +0200 | [diff] [blame] | 85 | #include <proto/signal.h> |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 86 | #include <proto/stream_sock.h> |
| 87 | #include <proto/task.h> |
| 88 | |
Willy Tarreau | b38651a | 2007-03-24 17:24:39 +0100 | [diff] [blame] | 89 | #ifdef CONFIG_HAP_CTTPROXY |
| 90 | #include <proto/cttproxy.h> |
| 91 | #endif |
| 92 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 93 | /*********************************************************************/ |
| 94 | |
| 95 | /*********************************************************************/ |
| 96 | |
Willy Tarreau | 477ecd8 | 2010-01-03 21:12:30 +0100 | [diff] [blame] | 97 | /* list of config files */ |
| 98 | static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 99 | int pid; /* current process id */ |
Willy Tarreau | 2815664 | 2007-11-26 16:13:36 +0100 | [diff] [blame] | 100 | int relative_pid = 1; /* process id starting at 1 */ |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 101 | |
| 102 | /* global options */ |
| 103 | struct global global = { |
| 104 | logfac1 : -1, |
| 105 | logfac2 : -1, |
| 106 | loglev1 : 7, /* max syslog level : debug */ |
| 107 | loglev2 : 7, |
Willy Tarreau | 03f6d67 | 2007-10-18 15:15:57 +0200 | [diff] [blame] | 108 | .stats_sock = { |
Willy Tarreau | 03f6d67 | 2007-10-18 15:15:57 +0200 | [diff] [blame] | 109 | .maxconn = 10, /* 10 concurrent stats connections */ |
| 110 | .perm = { |
| 111 | .ux = { |
| 112 | .uid = -1, |
| 113 | .gid = -1, |
| 114 | .mode = 0, |
| 115 | } |
| 116 | } |
Willy Tarreau | 27a674e | 2009-08-17 07:23:33 +0200 | [diff] [blame] | 117 | }, |
Emeric Brun | ed76092 | 2010-10-22 17:59:25 +0200 | [diff] [blame] | 118 | .unix_bind = { |
| 119 | .ux = { |
| 120 | .uid = -1, |
| 121 | .gid = -1, |
| 122 | .mode = 0, |
| 123 | } |
| 124 | }, |
Willy Tarreau | 27a674e | 2009-08-17 07:23:33 +0200 | [diff] [blame] | 125 | .tune = { |
| 126 | .bufsize = BUFSIZE, |
| 127 | .maxrewrite = MAXREWRITE, |
Willy Tarreau | 43961d5 | 2010-10-04 20:39:20 +0200 | [diff] [blame] | 128 | .chksize = BUFSIZE, |
Willy Tarreau | 27a674e | 2009-08-17 07:23:33 +0200 | [diff] [blame] | 129 | }, |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 130 | /* others NULL OK */ |
| 131 | }; |
| 132 | |
| 133 | /*********************************************************************/ |
| 134 | |
| 135 | int stopping; /* non zero means stopping in progress */ |
Willy Tarreau | af7ad00 | 2010-08-31 15:39:26 +0200 | [diff] [blame] | 136 | int jobs = 0; /* number of active jobs (conns, listeners, active tasks, ...) */ |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 137 | |
| 138 | /* Here we store informations about the pids of the processes we may pause |
| 139 | * or kill. We will send them a signal every 10 ms until we can bind to all |
| 140 | * our ports. With 200 retries, that's about 2 seconds. |
| 141 | */ |
| 142 | #define MAX_START_RETRIES 200 |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 143 | static int *oldpids = NULL; |
| 144 | static int oldpids_sig; /* use USR1 or TERM */ |
| 145 | |
| 146 | /* this is used to drain data, and as a temporary buffer for sprintf()... */ |
| 147 | char trash[BUFSIZE]; |
| 148 | |
Willy Tarreau | 8096de9 | 2010-02-26 11:12:27 +0100 | [diff] [blame] | 149 | /* this buffer is always the same size as standard buffers and is used for |
| 150 | * swapping data inside a buffer. |
| 151 | */ |
| 152 | char *swap_buffer = NULL; |
| 153 | |
Willy Tarreau | bb545b4 | 2010-08-25 12:58:59 +0200 | [diff] [blame] | 154 | int nb_oldpids = 0; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 155 | const int zero = 0; |
| 156 | const int one = 1; |
Alexandre Cassen | 87ea548 | 2007-10-11 20:48:58 +0200 | [diff] [blame] | 157 | const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 }; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 158 | |
Willy Tarreau | 1d21e0a | 2010-03-12 21:58:54 +0100 | [diff] [blame] | 159 | char hostname[MAX_HOSTNAME_LEN]; |
Emeric Brun | 2b920a1 | 2010-09-23 18:30:22 +0200 | [diff] [blame] | 160 | char localpeer[MAX_HOSTNAME_LEN]; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 161 | |
| 162 | |
| 163 | /*********************************************************************/ |
| 164 | /* general purpose functions ***************************************/ |
| 165 | /*********************************************************************/ |
| 166 | |
| 167 | void display_version() |
| 168 | { |
| 169 | printf("HA-Proxy version " HAPROXY_VERSION " " HAPROXY_DATE"\n"); |
Willy Tarreau | b05613d | 2010-02-02 10:18:28 +0100 | [diff] [blame] | 170 | printf("Copyright 2000-2010 Willy Tarreau <w@1wt.eu>\n\n"); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 171 | } |
| 172 | |
Willy Tarreau | 7b066db | 2007-12-02 11:28:59 +0100 | [diff] [blame] | 173 | void display_build_opts() |
| 174 | { |
| 175 | printf("Build options :" |
| 176 | #ifdef BUILD_TARGET |
Willy Tarreau | 9f2b730 | 2008-01-02 20:48:34 +0100 | [diff] [blame] | 177 | "\n TARGET = " BUILD_TARGET |
Willy Tarreau | 7b066db | 2007-12-02 11:28:59 +0100 | [diff] [blame] | 178 | #endif |
| 179 | #ifdef BUILD_CPU |
Willy Tarreau | 9f2b730 | 2008-01-02 20:48:34 +0100 | [diff] [blame] | 180 | "\n CPU = " BUILD_CPU |
Willy Tarreau | 7b066db | 2007-12-02 11:28:59 +0100 | [diff] [blame] | 181 | #endif |
| 182 | #ifdef BUILD_CC |
Willy Tarreau | 9f2b730 | 2008-01-02 20:48:34 +0100 | [diff] [blame] | 183 | "\n CC = " BUILD_CC |
| 184 | #endif |
| 185 | #ifdef BUILD_CFLAGS |
| 186 | "\n CFLAGS = " BUILD_CFLAGS |
Willy Tarreau | 7b066db | 2007-12-02 11:28:59 +0100 | [diff] [blame] | 187 | #endif |
Willy Tarreau | 9f2b730 | 2008-01-02 20:48:34 +0100 | [diff] [blame] | 188 | #ifdef BUILD_OPTIONS |
| 189 | "\n OPTIONS = " BUILD_OPTIONS |
Willy Tarreau | 7b066db | 2007-12-02 11:28:59 +0100 | [diff] [blame] | 190 | #endif |
Willy Tarreau | 27a674e | 2009-08-17 07:23:33 +0200 | [diff] [blame] | 191 | "\n\nDefault settings :" |
| 192 | "\n maxconn = %d, bufsize = %d, maxrewrite = %d, maxpollevents = %d" |
| 193 | "\n\n", |
| 194 | DEFAULT_MAXCONN, BUFSIZE, MAXREWRITE, MAX_POLL_EVENTS); |
Willy Tarreau | be5b685 | 2009-10-03 18:57:08 +0200 | [diff] [blame] | 195 | |
Krzysztof Piotr Oledzki | 9610504 | 2010-01-29 17:50:44 +0100 | [diff] [blame] | 196 | printf("Encrypted password support via crypt(3): " |
| 197 | #ifdef CONFIG_HAP_CRYPT |
| 198 | "yes" |
| 199 | #else |
| 200 | "no" |
| 201 | #endif |
| 202 | "\n"); |
| 203 | |
| 204 | putchar('\n'); |
| 205 | |
Willy Tarreau | be5b685 | 2009-10-03 18:57:08 +0200 | [diff] [blame] | 206 | list_pollers(stdout); |
| 207 | putchar('\n'); |
Willy Tarreau | 7b066db | 2007-12-02 11:28:59 +0100 | [diff] [blame] | 208 | } |
| 209 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 210 | /* |
| 211 | * This function prints the command line usage and exits |
| 212 | */ |
| 213 | void usage(char *name) |
| 214 | { |
| 215 | display_version(); |
| 216 | fprintf(stderr, |
Willy Tarreau | 5d01a63 | 2009-06-22 16:02:30 +0200 | [diff] [blame] | 217 | "Usage : %s [-f <cfgfile>]* [ -vdV" |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 218 | "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n" |
| 219 | " [ -p <pidfile> ] [ -m <max megs> ]\n" |
Willy Tarreau | 7b066db | 2007-12-02 11:28:59 +0100 | [diff] [blame] | 220 | " -v displays version ; -vv shows known build options.\n" |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 221 | " -d enters debug mode ; -db only disables background mode.\n" |
| 222 | " -V enters verbose mode (disables quiet mode)\n" |
Willy Tarreau | 6bde87b | 2009-05-18 16:29:51 +0200 | [diff] [blame] | 223 | " -D goes daemon\n" |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 224 | " -q quiet mode : don't display messages\n" |
Willy Tarreau | 5d01a63 | 2009-06-22 16:02:30 +0200 | [diff] [blame] | 225 | " -c check mode : only check config files and exit\n" |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 226 | " -n sets the maximum total # of connections (%d)\n" |
| 227 | " -m limits the usable amount of memory (in MB)\n" |
| 228 | " -N sets the default, per-proxy maximum # of connections (%d)\n" |
Emeric Brun | 2b920a1 | 2010-09-23 18:30:22 +0200 | [diff] [blame] | 229 | " -L set local peer name (default to hostname)\n" |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 230 | " -p writes pids of all children to this file\n" |
| 231 | #if defined(ENABLE_EPOLL) |
| 232 | " -de disables epoll() usage even when available\n" |
| 233 | #endif |
Willy Tarreau | de99e99 | 2007-04-16 00:53:59 +0200 | [diff] [blame] | 234 | #if defined(ENABLE_SEPOLL) |
| 235 | " -ds disables speculative epoll() usage even when available\n" |
| 236 | #endif |
Willy Tarreau | 1e63130a | 2007-04-09 12:03:06 +0200 | [diff] [blame] | 237 | #if defined(ENABLE_KQUEUE) |
| 238 | " -dk disables kqueue() usage even when available\n" |
| 239 | #endif |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 240 | #if defined(ENABLE_POLL) |
| 241 | " -dp disables poll() usage even when available\n" |
| 242 | #endif |
Willy Tarreau | b55932d | 2009-08-16 13:20:32 +0200 | [diff] [blame] | 243 | #if defined(CONFIG_HAP_LINUX_SPLICE) |
Willy Tarreau | 3ab68cf | 2009-01-25 16:03:28 +0100 | [diff] [blame] | 244 | " -dS disables splice usage (broken on old kernels)\n" |
| 245 | #endif |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 246 | " -sf/-st [pid ]* finishes/terminates old pids. Must be last arguments.\n" |
| 247 | "\n", |
| 248 | name, DEFAULT_MAXCONN, cfg_maxpconn); |
| 249 | exit(1); |
| 250 | } |
| 251 | |
| 252 | |
| 253 | |
| 254 | /*********************************************************************/ |
| 255 | /* more specific functions ***************************************/ |
| 256 | /*********************************************************************/ |
| 257 | |
| 258 | /* |
Willy Tarreau | d0807c3 | 2010-08-27 18:26:11 +0200 | [diff] [blame] | 259 | * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts |
| 260 | * a signal zero to all subscribers. This means that it's as easy as |
| 261 | * subscribing to signal 0 to get informed about an imminent shutdown. |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 262 | */ |
Willy Tarreau | 24f4efa | 2010-08-27 17:56:48 +0200 | [diff] [blame] | 263 | void sig_soft_stop(struct sig_handler *sh) |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 264 | { |
| 265 | soft_stop(); |
Willy Tarreau | 24f4efa | 2010-08-27 17:56:48 +0200 | [diff] [blame] | 266 | signal_unregister_handler(sh); |
Willy Tarreau | 4d2d098 | 2007-05-14 00:39:29 +0200 | [diff] [blame] | 267 | pool_gc2(); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 268 | } |
| 269 | |
| 270 | /* |
| 271 | * upon SIGTTOU, we pause everything |
| 272 | */ |
Willy Tarreau | 24f4efa | 2010-08-27 17:56:48 +0200 | [diff] [blame] | 273 | void sig_pause(struct sig_handler *sh) |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 274 | { |
| 275 | pause_proxies(); |
Willy Tarreau | 4d2d098 | 2007-05-14 00:39:29 +0200 | [diff] [blame] | 276 | pool_gc2(); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 277 | } |
| 278 | |
| 279 | /* |
| 280 | * upon SIGTTIN, let's have a soft stop. |
| 281 | */ |
Willy Tarreau | 24f4efa | 2010-08-27 17:56:48 +0200 | [diff] [blame] | 282 | void sig_listen(struct sig_handler *sh) |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 283 | { |
Willy Tarreau | be58c38 | 2011-07-24 18:28:10 +0200 | [diff] [blame] | 284 | resume_proxies(); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 285 | } |
| 286 | |
| 287 | /* |
| 288 | * this function dumps every server's state when the process receives SIGHUP. |
| 289 | */ |
Willy Tarreau | 24f4efa | 2010-08-27 17:56:48 +0200 | [diff] [blame] | 290 | void sig_dump_state(struct sig_handler *sh) |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 291 | { |
| 292 | struct proxy *p = proxy; |
| 293 | |
| 294 | Warning("SIGHUP received, dumping servers states.\n"); |
| 295 | while (p) { |
| 296 | struct server *s = p->srv; |
| 297 | |
| 298 | send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id); |
| 299 | while (s) { |
| 300 | snprintf(trash, sizeof(trash), |
Willy Tarreau | 3b88d44 | 2009-04-11 20:44:08 +0200 | [diff] [blame] | 301 | "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.", |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 302 | p->id, s->id, |
| 303 | (s->state & SRV_RUNNING) ? "UP" : "DOWN", |
Krzysztof Piotr Oledzki | 052d4fd | 2009-10-04 14:52:57 +0200 | [diff] [blame] | 304 | s->cur_sess, s->nbpend, s->counters.cum_sess); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 305 | Warning("%s\n", trash); |
| 306 | send_log(p, LOG_NOTICE, "%s\n", trash); |
| 307 | s = s->next; |
| 308 | } |
| 309 | |
Willy Tarreau | 5fcc8f1 | 2007-09-17 11:27:09 +0200 | [diff] [blame] | 310 | /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */ |
| 311 | if (!p->srv) { |
| 312 | snprintf(trash, sizeof(trash), |
Willy Tarreau | 3b88d44 | 2009-04-11 20:44:08 +0200 | [diff] [blame] | 313 | "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.", |
Willy Tarreau | 5fcc8f1 | 2007-09-17 11:27:09 +0200 | [diff] [blame] | 314 | p->id, |
Willy Tarreau | 7d0aaf3 | 2011-03-10 23:25:56 +0100 | [diff] [blame] | 315 | p->feconn, p->beconn, p->totpend, p->nbpend, p->fe_counters.cum_conn, p->be_counters.cum_conn); |
Willy Tarreau | 5fcc8f1 | 2007-09-17 11:27:09 +0200 | [diff] [blame] | 316 | } else if (p->srv_act == 0) { |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 317 | snprintf(trash, sizeof(trash), |
Willy Tarreau | 3b88d44 | 2009-04-11 20:44:08 +0200 | [diff] [blame] | 318 | "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.", |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 319 | p->id, |
| 320 | (p->srv_bck) ? "is running on backup servers" : "has no server available", |
Willy Tarreau | 7d0aaf3 | 2011-03-10 23:25:56 +0100 | [diff] [blame] | 321 | p->feconn, p->beconn, p->totpend, p->nbpend, p->fe_counters.cum_conn, p->be_counters.cum_conn); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 322 | } else { |
| 323 | snprintf(trash, sizeof(trash), |
| 324 | "SIGHUP: Proxy %s has %d active servers and %d backup servers available." |
Willy Tarreau | 3b88d44 | 2009-04-11 20:44:08 +0200 | [diff] [blame] | 325 | " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.", |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 326 | p->id, p->srv_act, p->srv_bck, |
Willy Tarreau | 7d0aaf3 | 2011-03-10 23:25:56 +0100 | [diff] [blame] | 327 | p->feconn, p->beconn, p->totpend, p->nbpend, p->fe_counters.cum_conn, p->be_counters.cum_conn); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 328 | } |
| 329 | Warning("%s\n", trash); |
| 330 | send_log(p, LOG_NOTICE, "%s\n", trash); |
| 331 | |
| 332 | p = p->next; |
| 333 | } |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 334 | } |
| 335 | |
Willy Tarreau | 24f4efa | 2010-08-27 17:56:48 +0200 | [diff] [blame] | 336 | void dump(struct sig_handler *sh) |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 337 | { |
Willy Tarreau | c6ca1a0 | 2007-05-13 19:43:47 +0200 | [diff] [blame] | 338 | /* dump memory usage then free everything possible */ |
| 339 | dump_pools(); |
| 340 | pool_gc2(); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 341 | } |
| 342 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 343 | /* |
| 344 | * This function initializes all the necessary variables. It only returns |
| 345 | * if everything is OK. If something fails, it exits. |
| 346 | */ |
| 347 | void init(int argc, char **argv) |
| 348 | { |
| 349 | int i; |
| 350 | int arg_mode = 0; /* MODE_DEBUG, ... */ |
| 351 | char *old_argv = *argv; |
| 352 | char *tmp; |
| 353 | char *cfg_pidfile = NULL; |
Willy Tarreau | 058e907 | 2009-07-20 09:30:05 +0200 | [diff] [blame] | 354 | int err_code = 0; |
Willy Tarreau | 477ecd8 | 2010-01-03 21:12:30 +0100 | [diff] [blame] | 355 | struct wordlist *wl; |
Kevinm | 48936af | 2010-12-22 16:08:21 +0000 | [diff] [blame] | 356 | char *progname; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 357 | |
Emeric Brun | 2b920a1 | 2010-09-23 18:30:22 +0200 | [diff] [blame] | 358 | /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate |
| 359 | * the string in case of truncation, and at least FreeBSD appears not to do |
| 360 | * it. |
| 361 | */ |
| 362 | memset(hostname, 0, sizeof(hostname)); |
| 363 | gethostname(hostname, sizeof(hostname) - 1); |
| 364 | memset(localpeer, 0, sizeof(localpeer)); |
| 365 | memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1); |
| 366 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 367 | /* |
| 368 | * Initialize the previously static variables. |
| 369 | */ |
| 370 | |
Willy Tarreau | 3eba98a | 2009-01-25 13:56:13 +0100 | [diff] [blame] | 371 | totalconn = actconn = maxfd = listeners = stopping = 0; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 372 | |
| 373 | |
| 374 | #ifdef HAPROXY_MEMMAX |
| 375 | global.rlimit_memmax = HAPROXY_MEMMAX; |
| 376 | #endif |
| 377 | |
Willy Tarreau | b0b37bc | 2008-06-23 14:00:57 +0200 | [diff] [blame] | 378 | tv_update_date(-1,-1); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 379 | start_date = now; |
| 380 | |
Willy Tarreau | 2985794 | 2009-05-10 09:01:21 +0200 | [diff] [blame] | 381 | signal_init(); |
Willy Tarreau | c6ca1a0 | 2007-05-13 19:43:47 +0200 | [diff] [blame] | 382 | init_task(); |
| 383 | init_session(); |
Willy Tarreau | 8280d64 | 2009-09-23 23:37:52 +0200 | [diff] [blame] | 384 | /* warning, we init buffers later */ |
Willy Tarreau | e4d7e55 | 2007-05-13 20:19:55 +0200 | [diff] [blame] | 385 | init_pendconn(); |
Willy Tarreau | 8058743 | 2006-12-24 17:47:20 +0100 | [diff] [blame] | 386 | init_proto_http(); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 387 | |
Willy Tarreau | 43b7899 | 2009-01-25 15:42:27 +0100 | [diff] [blame] | 388 | global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */ |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 389 | #if defined(ENABLE_POLL) |
Willy Tarreau | 43b7899 | 2009-01-25 15:42:27 +0100 | [diff] [blame] | 390 | global.tune.options |= GTUNE_USE_POLL; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 391 | #endif |
| 392 | #if defined(ENABLE_EPOLL) |
Willy Tarreau | 43b7899 | 2009-01-25 15:42:27 +0100 | [diff] [blame] | 393 | global.tune.options |= GTUNE_USE_EPOLL; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 394 | #endif |
Willy Tarreau | de99e99 | 2007-04-16 00:53:59 +0200 | [diff] [blame] | 395 | #if defined(ENABLE_SEPOLL) |
Willy Tarreau | 43b7899 | 2009-01-25 15:42:27 +0100 | [diff] [blame] | 396 | global.tune.options |= GTUNE_USE_SEPOLL; |
Willy Tarreau | de99e99 | 2007-04-16 00:53:59 +0200 | [diff] [blame] | 397 | #endif |
Willy Tarreau | 1e63130a | 2007-04-09 12:03:06 +0200 | [diff] [blame] | 398 | #if defined(ENABLE_KQUEUE) |
Willy Tarreau | 43b7899 | 2009-01-25 15:42:27 +0100 | [diff] [blame] | 399 | global.tune.options |= GTUNE_USE_KQUEUE; |
Willy Tarreau | 1e63130a | 2007-04-09 12:03:06 +0200 | [diff] [blame] | 400 | #endif |
Willy Tarreau | b55932d | 2009-08-16 13:20:32 +0200 | [diff] [blame] | 401 | #if defined(CONFIG_HAP_LINUX_SPLICE) |
Willy Tarreau | 3ab68cf | 2009-01-25 16:03:28 +0100 | [diff] [blame] | 402 | global.tune.options |= GTUNE_USE_SPLICE; |
| 403 | #endif |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 404 | |
| 405 | pid = getpid(); |
| 406 | progname = *argv; |
| 407 | while ((tmp = strchr(progname, '/')) != NULL) |
| 408 | progname = tmp + 1; |
| 409 | |
Kevinm | 48936af | 2010-12-22 16:08:21 +0000 | [diff] [blame] | 410 | /* the process name is used for the logs only */ |
| 411 | global.log_tag = strdup(progname); |
| 412 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 413 | argc--; argv++; |
| 414 | while (argc > 0) { |
| 415 | char *flag; |
| 416 | |
| 417 | if (**argv == '-') { |
| 418 | flag = *argv+1; |
| 419 | |
| 420 | /* 1 arg */ |
| 421 | if (*flag == 'v') { |
| 422 | display_version(); |
Willy Tarreau | 7b066db | 2007-12-02 11:28:59 +0100 | [diff] [blame] | 423 | if (flag[1] == 'v') /* -vv */ |
| 424 | display_build_opts(); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 425 | exit(0); |
| 426 | } |
| 427 | #if defined(ENABLE_EPOLL) |
| 428 | else if (*flag == 'd' && flag[1] == 'e') |
Willy Tarreau | 43b7899 | 2009-01-25 15:42:27 +0100 | [diff] [blame] | 429 | global.tune.options &= ~GTUNE_USE_EPOLL; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 430 | #endif |
Willy Tarreau | de99e99 | 2007-04-16 00:53:59 +0200 | [diff] [blame] | 431 | #if defined(ENABLE_SEPOLL) |
| 432 | else if (*flag == 'd' && flag[1] == 's') |
Willy Tarreau | 43b7899 | 2009-01-25 15:42:27 +0100 | [diff] [blame] | 433 | global.tune.options &= ~GTUNE_USE_SEPOLL; |
Willy Tarreau | de99e99 | 2007-04-16 00:53:59 +0200 | [diff] [blame] | 434 | #endif |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 435 | #if defined(ENABLE_POLL) |
| 436 | else if (*flag == 'd' && flag[1] == 'p') |
Willy Tarreau | 43b7899 | 2009-01-25 15:42:27 +0100 | [diff] [blame] | 437 | global.tune.options &= ~GTUNE_USE_POLL; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 438 | #endif |
Willy Tarreau | 69cad1a | 2007-04-10 22:45:11 +0200 | [diff] [blame] | 439 | #if defined(ENABLE_KQUEUE) |
Willy Tarreau | 1e63130a | 2007-04-09 12:03:06 +0200 | [diff] [blame] | 440 | else if (*flag == 'd' && flag[1] == 'k') |
Willy Tarreau | 43b7899 | 2009-01-25 15:42:27 +0100 | [diff] [blame] | 441 | global.tune.options &= ~GTUNE_USE_KQUEUE; |
Willy Tarreau | 1e63130a | 2007-04-09 12:03:06 +0200 | [diff] [blame] | 442 | #endif |
Willy Tarreau | b55932d | 2009-08-16 13:20:32 +0200 | [diff] [blame] | 443 | #if defined(CONFIG_HAP_LINUX_SPLICE) |
Willy Tarreau | 3ab68cf | 2009-01-25 16:03:28 +0100 | [diff] [blame] | 444 | else if (*flag == 'd' && flag[1] == 'S') |
| 445 | global.tune.options &= ~GTUNE_USE_SPLICE; |
| 446 | #endif |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 447 | else if (*flag == 'V') |
| 448 | arg_mode |= MODE_VERBOSE; |
| 449 | else if (*flag == 'd' && flag[1] == 'b') |
| 450 | arg_mode |= MODE_FOREGROUND; |
| 451 | else if (*flag == 'd') |
| 452 | arg_mode |= MODE_DEBUG; |
| 453 | else if (*flag == 'c') |
| 454 | arg_mode |= MODE_CHECK; |
| 455 | else if (*flag == 'D') |
Willy Tarreau | 6bde87b | 2009-05-18 16:29:51 +0200 | [diff] [blame] | 456 | arg_mode |= MODE_DAEMON; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 457 | else if (*flag == 'q') |
| 458 | arg_mode |= MODE_QUIET; |
| 459 | else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) { |
| 460 | /* list of pids to finish ('f') or terminate ('t') */ |
| 461 | |
| 462 | if (flag[1] == 'f') |
| 463 | oldpids_sig = SIGUSR1; /* finish then exit */ |
| 464 | else |
| 465 | oldpids_sig = SIGTERM; /* terminate immediately */ |
| 466 | argv++; argc--; |
| 467 | |
| 468 | if (argc > 0) { |
| 469 | oldpids = calloc(argc, sizeof(int)); |
| 470 | while (argc > 0) { |
| 471 | oldpids[nb_oldpids] = atol(*argv); |
| 472 | if (oldpids[nb_oldpids] <= 0) |
| 473 | usage(old_argv); |
| 474 | argc--; argv++; |
| 475 | nb_oldpids++; |
| 476 | } |
| 477 | } |
| 478 | } |
| 479 | else { /* >=2 args */ |
| 480 | argv++; argc--; |
| 481 | if (argc == 0) |
| 482 | usage(old_argv); |
| 483 | |
| 484 | switch (*flag) { |
| 485 | case 'n' : cfg_maxconn = atol(*argv); break; |
| 486 | case 'm' : global.rlimit_memmax = atol(*argv); break; |
| 487 | case 'N' : cfg_maxpconn = atol(*argv); break; |
Emeric Brun | 2b920a1 | 2010-09-23 18:30:22 +0200 | [diff] [blame] | 488 | case 'L' : strncpy(localpeer, *argv, sizeof(localpeer) - 1); break; |
Willy Tarreau | 5d01a63 | 2009-06-22 16:02:30 +0200 | [diff] [blame] | 489 | case 'f' : |
Willy Tarreau | 477ecd8 | 2010-01-03 21:12:30 +0100 | [diff] [blame] | 490 | wl = (struct wordlist *)calloc(1, sizeof(*wl)); |
| 491 | if (!wl) { |
| 492 | Alert("Cannot load configuration file %s : out of memory.\n", *argv); |
Willy Tarreau | 5d01a63 | 2009-06-22 16:02:30 +0200 | [diff] [blame] | 493 | exit(1); |
| 494 | } |
Willy Tarreau | 477ecd8 | 2010-01-03 21:12:30 +0100 | [diff] [blame] | 495 | wl->s = *argv; |
| 496 | LIST_ADDQ(&cfg_cfgfiles, &wl->list); |
Willy Tarreau | 5d01a63 | 2009-06-22 16:02:30 +0200 | [diff] [blame] | 497 | break; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 498 | case 'p' : cfg_pidfile = *argv; break; |
| 499 | default: usage(old_argv); |
| 500 | } |
| 501 | } |
| 502 | } |
| 503 | else |
| 504 | usage(old_argv); |
| 505 | argv++; argc--; |
| 506 | } |
| 507 | |
| 508 | global.mode = MODE_STARTING | /* during startup, we want most of the alerts */ |
| 509 | (arg_mode & (MODE_DAEMON | MODE_FOREGROUND | MODE_VERBOSE |
| 510 | | MODE_QUIET | MODE_CHECK | MODE_DEBUG)); |
| 511 | |
Willy Tarreau | 477ecd8 | 2010-01-03 21:12:30 +0100 | [diff] [blame] | 512 | if (LIST_ISEMPTY(&cfg_cfgfiles)) |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 513 | usage(old_argv); |
| 514 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 515 | have_appsession = 0; |
| 516 | global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */ |
Willy Tarreau | 915e1eb | 2009-06-22 15:48:36 +0200 | [diff] [blame] | 517 | |
| 518 | init_default_instance(); |
| 519 | |
Willy Tarreau | 477ecd8 | 2010-01-03 21:12:30 +0100 | [diff] [blame] | 520 | list_for_each_entry(wl, &cfg_cfgfiles, list) { |
Willy Tarreau | c438242 | 2009-12-06 13:10:44 +0100 | [diff] [blame] | 521 | int ret; |
| 522 | |
Willy Tarreau | 477ecd8 | 2010-01-03 21:12:30 +0100 | [diff] [blame] | 523 | ret = readcfgfile(wl->s); |
Willy Tarreau | c438242 | 2009-12-06 13:10:44 +0100 | [diff] [blame] | 524 | if (ret == -1) { |
| 525 | Alert("Could not open configuration file %s : %s\n", |
Willy Tarreau | 477ecd8 | 2010-01-03 21:12:30 +0100 | [diff] [blame] | 526 | wl->s, strerror(errno)); |
Willy Tarreau | c438242 | 2009-12-06 13:10:44 +0100 | [diff] [blame] | 527 | exit(1); |
| 528 | } |
Willy Tarreau | 25a67fa | 2009-12-15 21:46:25 +0100 | [diff] [blame] | 529 | if (ret & (ERR_ABORT|ERR_FATAL)) |
Willy Tarreau | 477ecd8 | 2010-01-03 21:12:30 +0100 | [diff] [blame] | 530 | Alert("Error(s) found in configuration file : %s\n", wl->s); |
Willy Tarreau | 25a67fa | 2009-12-15 21:46:25 +0100 | [diff] [blame] | 531 | err_code |= ret; |
Willy Tarreau | 058e907 | 2009-07-20 09:30:05 +0200 | [diff] [blame] | 532 | if (err_code & ERR_ABORT) |
Willy Tarreau | 5d01a63 | 2009-06-22 16:02:30 +0200 | [diff] [blame] | 533 | exit(1); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 534 | } |
Krzysztof Oledzki | b304dc7 | 2007-10-14 23:40:01 +0200 | [diff] [blame] | 535 | |
Willy Tarreau | bb92501 | 2009-07-23 13:36:36 +0200 | [diff] [blame] | 536 | err_code |= check_config_validity(); |
| 537 | if (err_code & (ERR_ABORT|ERR_FATAL)) { |
| 538 | Alert("Fatal errors found in configuration.\n"); |
Willy Tarreau | 915e1eb | 2009-06-22 15:48:36 +0200 | [diff] [blame] | 539 | exit(1); |
| 540 | } |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 541 | |
| 542 | if (global.mode & MODE_CHECK) { |
Willy Tarreau | 915e1eb | 2009-06-22 15:48:36 +0200 | [diff] [blame] | 543 | qfprintf(stdout, "Configuration file is valid\n"); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 544 | exit(0); |
| 545 | } |
| 546 | |
Willy Tarreau | 8280d64 | 2009-09-23 23:37:52 +0200 | [diff] [blame] | 547 | /* now we know the buffer size, we can initialize the buffers */ |
| 548 | init_buffer(); |
| 549 | |
Willy Tarreau | 915e1eb | 2009-06-22 15:48:36 +0200 | [diff] [blame] | 550 | if (have_appsession) |
| 551 | appsession_init(); |
| 552 | |
Krzysztof Oledzki | b304dc7 | 2007-10-14 23:40:01 +0200 | [diff] [blame] | 553 | if (start_checks() < 0) |
| 554 | exit(1); |
| 555 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 556 | if (cfg_maxconn > 0) |
| 557 | global.maxconn = cfg_maxconn; |
| 558 | |
| 559 | if (cfg_pidfile) { |
Willy Tarreau | a534fea | 2008-08-03 12:19:50 +0200 | [diff] [blame] | 560 | free(global.pidfile); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 561 | global.pidfile = strdup(cfg_pidfile); |
| 562 | } |
| 563 | |
| 564 | if (global.maxconn == 0) |
| 565 | global.maxconn = DEFAULT_MAXCONN; |
| 566 | |
Willy Tarreau | 66aa61f | 2009-01-18 21:44:07 +0100 | [diff] [blame] | 567 | if (!global.maxpipes) { |
| 568 | /* maxpipes not specified. Count how many frontends and backends |
| 569 | * may be using splicing, and bound that to maxconn. |
| 570 | */ |
| 571 | struct proxy *cur; |
| 572 | int nbfe = 0, nbbe = 0; |
| 573 | |
| 574 | for (cur = proxy; cur; cur = cur->next) { |
| 575 | if (cur->options2 & (PR_O2_SPLIC_ANY)) { |
| 576 | if (cur->cap & PR_CAP_FE) |
| 577 | nbfe += cur->maxconn; |
| 578 | if (cur->cap & PR_CAP_BE) |
Willy Tarreau | afb4876 | 2009-01-25 10:42:05 +0100 | [diff] [blame] | 579 | nbbe += cur->fullconn ? cur->fullconn : global.maxconn; |
Willy Tarreau | 66aa61f | 2009-01-18 21:44:07 +0100 | [diff] [blame] | 580 | } |
| 581 | } |
| 582 | global.maxpipes = MAX(nbfe, nbbe); |
| 583 | if (global.maxpipes > global.maxconn) |
| 584 | global.maxpipes = global.maxconn; |
Willy Tarreau | 686ac82 | 2009-01-25 14:06:58 +0100 | [diff] [blame] | 585 | global.maxpipes /= 4; |
Willy Tarreau | 66aa61f | 2009-01-18 21:44:07 +0100 | [diff] [blame] | 586 | } |
| 587 | |
| 588 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 589 | global.maxsock += global.maxconn * 2; /* each connection needs two sockets */ |
Willy Tarreau | 3ec79b9 | 2009-01-18 20:39:42 +0100 | [diff] [blame] | 590 | global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */ |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 591 | |
Willy Tarreau | 1db3771 | 2007-06-03 17:16:49 +0200 | [diff] [blame] | 592 | if (global.tune.maxpollevents <= 0) |
| 593 | global.tune.maxpollevents = MAX_POLL_EVENTS; |
| 594 | |
Willy Tarreau | f49d1df | 2009-03-01 08:35:41 +0100 | [diff] [blame] | 595 | if (global.tune.maxaccept == 0) { |
Willy Tarreau | 4827fd2 | 2011-07-22 21:59:59 +0200 | [diff] [blame] | 596 | /* Note: we should not try to accept too many connections at once, |
| 597 | * because past one point we're significantly reducing the cache |
| 598 | * efficiency and the highest session rate significantly drops. |
| 599 | * Values between 15 and 35 seem fine on a Core i5 with 4M L3 cache. |
| 600 | */ |
Willy Tarreau | a0250ba | 2008-01-06 11:22:57 +0100 | [diff] [blame] | 601 | if (global.nbproc > 1) |
| 602 | global.tune.maxaccept = 8; /* leave some conns to other processes */ |
| 603 | else |
Willy Tarreau | 4827fd2 | 2011-07-22 21:59:59 +0200 | [diff] [blame] | 604 | global.tune.maxaccept = 32; /* accept more incoming conns at once */ |
Willy Tarreau | a0250ba | 2008-01-06 11:22:57 +0100 | [diff] [blame] | 605 | } |
| 606 | |
Willy Tarreau | 6f4a82c | 2009-03-21 20:43:57 +0100 | [diff] [blame] | 607 | if (global.tune.recv_enough == 0) |
| 608 | global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH; |
| 609 | |
Willy Tarreau | 27a674e | 2009-08-17 07:23:33 +0200 | [diff] [blame] | 610 | if (global.tune.maxrewrite >= global.tune.bufsize / 2) |
| 611 | global.tune.maxrewrite = global.tune.bufsize / 2; |
| 612 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 613 | if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) { |
| 614 | /* command line debug mode inhibits configuration mode */ |
| 615 | global.mode &= ~(MODE_DAEMON | MODE_QUIET); |
| 616 | } |
| 617 | global.mode |= (arg_mode & (MODE_DAEMON | MODE_FOREGROUND | MODE_QUIET | |
Willy Tarreau | fbee713 | 2007-10-18 13:53:22 +0200 | [diff] [blame] | 618 | MODE_VERBOSE | MODE_DEBUG )); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 619 | |
| 620 | if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_QUIET))) { |
| 621 | Warning("<debug> mode incompatible with <quiet> and <daemon>. Keeping <debug> only.\n"); |
| 622 | global.mode &= ~(MODE_DAEMON | MODE_QUIET); |
| 623 | } |
| 624 | |
| 625 | if ((global.nbproc > 1) && !(global.mode & MODE_DAEMON)) { |
| 626 | if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG))) |
| 627 | Warning("<nbproc> is only meaningful in daemon mode. Setting limit to 1 process.\n"); |
| 628 | global.nbproc = 1; |
| 629 | } |
| 630 | |
| 631 | if (global.nbproc < 1) |
| 632 | global.nbproc = 1; |
| 633 | |
Willy Tarreau | 8096de9 | 2010-02-26 11:12:27 +0100 | [diff] [blame] | 634 | swap_buffer = (char *)calloc(1, global.tune.bufsize); |
| 635 | |
Willy Tarreau | 8d5d77e | 2009-10-18 07:25:52 +0200 | [diff] [blame] | 636 | fdinfo = (struct fdinfo *)calloc(1, |
| 637 | sizeof(struct fdinfo) * (global.maxsock)); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 638 | fdtab = (struct fdtab *)calloc(1, |
| 639 | sizeof(struct fdtab) * (global.maxsock)); |
| 640 | for (i = 0; i < global.maxsock; i++) { |
| 641 | fdtab[i].state = FD_STCLOSE; |
| 642 | } |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 643 | |
Willy Tarreau | ef1d1f8 | 2007-04-16 00:25:25 +0200 | [diff] [blame] | 644 | /* |
| 645 | * Note: we could register external pollers here. |
| 646 | * Built-in pollers have been registered before main(). |
| 647 | */ |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 648 | |
Willy Tarreau | 43b7899 | 2009-01-25 15:42:27 +0100 | [diff] [blame] | 649 | if (!(global.tune.options & GTUNE_USE_KQUEUE)) |
Willy Tarreau | 1e63130a | 2007-04-09 12:03:06 +0200 | [diff] [blame] | 650 | disable_poller("kqueue"); |
| 651 | |
Willy Tarreau | 43b7899 | 2009-01-25 15:42:27 +0100 | [diff] [blame] | 652 | if (!(global.tune.options & GTUNE_USE_EPOLL)) |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 653 | disable_poller("epoll"); |
| 654 | |
Willy Tarreau | 43b7899 | 2009-01-25 15:42:27 +0100 | [diff] [blame] | 655 | if (!(global.tune.options & GTUNE_USE_SEPOLL)) |
Willy Tarreau | de99e99 | 2007-04-16 00:53:59 +0200 | [diff] [blame] | 656 | disable_poller("sepoll"); |
| 657 | |
Willy Tarreau | 43b7899 | 2009-01-25 15:42:27 +0100 | [diff] [blame] | 658 | if (!(global.tune.options & GTUNE_USE_POLL)) |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 659 | disable_poller("poll"); |
| 660 | |
Willy Tarreau | 43b7899 | 2009-01-25 15:42:27 +0100 | [diff] [blame] | 661 | if (!(global.tune.options & GTUNE_USE_SELECT)) |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 662 | disable_poller("select"); |
| 663 | |
| 664 | /* Note: we could disable any poller by name here */ |
| 665 | |
Willy Tarreau | 2ff7622 | 2007-04-09 19:29:56 +0200 | [diff] [blame] | 666 | if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) |
| 667 | list_pollers(stderr); |
| 668 | |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 669 | if (!init_pollers()) { |
Willy Tarreau | 2ff7622 | 2007-04-09 19:29:56 +0200 | [diff] [blame] | 670 | Alert("No polling mechanism available.\n"); |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 671 | exit(1); |
| 672 | } |
Willy Tarreau | 2ff7622 | 2007-04-09 19:29:56 +0200 | [diff] [blame] | 673 | if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) { |
| 674 | printf("Using %s() as the polling mechanism.\n", cur_poller.name); |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 675 | } |
| 676 | |
Krzysztof Piotr Oledzki | 48cb2ae | 2009-10-02 22:51:14 +0200 | [diff] [blame] | 677 | if (!global.node) |
| 678 | global.node = strdup(hostname); |
| 679 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 680 | } |
| 681 | |
Simon Horman | 6fb8259 | 2011-07-15 13:14:11 +0900 | [diff] [blame] | 682 | static void deinit_acl_cond(struct acl_cond *cond) |
Simon Horman | ac82142 | 2011-07-15 13:14:09 +0900 | [diff] [blame] | 683 | { |
Simon Horman | ac82142 | 2011-07-15 13:14:09 +0900 | [diff] [blame] | 684 | struct acl_term_suite *suite, *suiteb; |
| 685 | struct acl_term *term, *termb; |
| 686 | |
Simon Horman | 6fb8259 | 2011-07-15 13:14:11 +0900 | [diff] [blame] | 687 | if (!cond) |
| 688 | return; |
| 689 | |
| 690 | list_for_each_entry_safe(suite, suiteb, &cond->suites, list) { |
| 691 | list_for_each_entry_safe(term, termb, &suite->terms, list) { |
| 692 | LIST_DEL(&term->list); |
| 693 | free(term); |
Simon Horman | ac82142 | 2011-07-15 13:14:09 +0900 | [diff] [blame] | 694 | } |
Simon Horman | 6fb8259 | 2011-07-15 13:14:11 +0900 | [diff] [blame] | 695 | LIST_DEL(&suite->list); |
| 696 | free(suite); |
| 697 | } |
| 698 | |
| 699 | free(cond); |
| 700 | } |
| 701 | |
| 702 | static void deinit_tcp_rules(struct list *rules) |
| 703 | { |
| 704 | struct tcp_rule *trule, *truleb; |
| 705 | |
| 706 | list_for_each_entry_safe(trule, truleb, rules, list) { |
Simon Horman | ac82142 | 2011-07-15 13:14:09 +0900 | [diff] [blame] | 707 | LIST_DEL(&trule->list); |
Simon Horman | 6fb8259 | 2011-07-15 13:14:11 +0900 | [diff] [blame] | 708 | deinit_acl_cond(trule->cond); |
Simon Horman | ac82142 | 2011-07-15 13:14:09 +0900 | [diff] [blame] | 709 | free(trule); |
| 710 | } |
| 711 | } |
| 712 | |
Simon Horman | 6fb8259 | 2011-07-15 13:14:11 +0900 | [diff] [blame] | 713 | static void deinit_pattern_arg(struct pattern_arg *p, int i) |
| 714 | { |
| 715 | if (!p) |
| 716 | return; |
| 717 | |
| 718 | while (i--) |
| 719 | if (p[i].type == PATTERN_ARG_TYPE_STRING) |
| 720 | free(p[i].data.str.str); |
| 721 | |
| 722 | free(p); |
| 723 | } |
| 724 | |
| 725 | static void deinit_stick_rules(struct list *rules) |
| 726 | { |
| 727 | struct sticking_rule *rule, *ruleb; |
| 728 | |
| 729 | list_for_each_entry_safe(rule, ruleb, rules, list) { |
| 730 | LIST_DEL(&rule->list); |
| 731 | deinit_acl_cond(rule->cond); |
| 732 | if (rule->expr) { |
| 733 | struct pattern_conv_expr *conv_expr, *conv_exprb; |
| 734 | list_for_each_entry_safe(conv_expr, conv_exprb, &rule->expr->conv_exprs, list) |
| 735 | deinit_pattern_arg(conv_expr->arg_p, conv_expr->arg_i); |
| 736 | deinit_pattern_arg(rule->expr->arg_p, rule->expr->arg_i); |
| 737 | free(rule->expr); |
| 738 | } |
| 739 | free(rule); |
| 740 | } |
| 741 | } |
| 742 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 743 | void deinit(void) |
| 744 | { |
Willy Tarreau | 4d2d098 | 2007-05-14 00:39:29 +0200 | [diff] [blame] | 745 | struct proxy *p = proxy, *p0; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 746 | struct cap_hdr *h,*h_next; |
| 747 | struct server *s,*s_next; |
| 748 | struct listener *l,*l_next; |
Willy Tarreau | 0fc45a7 | 2007-06-17 00:36:03 +0200 | [diff] [blame] | 749 | struct acl_cond *cond, *condb; |
| 750 | struct hdr_exp *exp, *expb; |
Krzysztof Piotr Oledzki | a643baf | 2008-05-29 23:53:44 +0200 | [diff] [blame] | 751 | struct acl *acl, *aclb; |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 752 | struct switching_rule *rule, *ruleb; |
Willy Tarreau | b463dfb | 2008-06-07 23:08:56 +0200 | [diff] [blame] | 753 | struct redirect_rule *rdr, *rdrb; |
Willy Tarreau | deb9ed8 | 2010-01-03 21:03:22 +0100 | [diff] [blame] | 754 | struct wordlist *wl, *wlb; |
Willy Tarreau | f4f0412 | 2010-01-28 18:10:50 +0100 | [diff] [blame] | 755 | struct cond_wordlist *cwl, *cwlb; |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 756 | struct uri_auth *uap, *ua = NULL; |
Willy Tarreau | 0fc45a7 | 2007-06-17 00:36:03 +0200 | [diff] [blame] | 757 | int i; |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 758 | |
Willy Tarreau | 24f4efa | 2010-08-27 17:56:48 +0200 | [diff] [blame] | 759 | deinit_signals(); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 760 | while (p) { |
Willy Tarreau | a534fea | 2008-08-03 12:19:50 +0200 | [diff] [blame] | 761 | free(p->id); |
| 762 | free(p->check_req); |
| 763 | free(p->cookie_name); |
| 764 | free(p->cookie_domain); |
| 765 | free(p->url_param_name); |
| 766 | free(p->capture_name); |
| 767 | free(p->monitor_uri); |
Simon Horman | a31c7f7 | 2011-07-15 13:14:08 +0900 | [diff] [blame] | 768 | free(p->rdp_cookie_name); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 769 | |
Willy Tarreau | a534fea | 2008-08-03 12:19:50 +0200 | [diff] [blame] | 770 | for (i = 0; i < HTTP_ERR_SIZE; i++) |
Krzysztof Piotr Oledzki | 78abe61 | 2009-09-27 13:23:20 +0200 | [diff] [blame] | 771 | chunk_destroy(&p->errmsg[i]); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 772 | |
Willy Tarreau | f4f0412 | 2010-01-28 18:10:50 +0100 | [diff] [blame] | 773 | list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) { |
| 774 | LIST_DEL(&cwl->list); |
| 775 | free(cwl->s); |
| 776 | free(cwl); |
Willy Tarreau | deb9ed8 | 2010-01-03 21:03:22 +0100 | [diff] [blame] | 777 | } |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 778 | |
Willy Tarreau | f4f0412 | 2010-01-28 18:10:50 +0100 | [diff] [blame] | 779 | list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) { |
| 780 | LIST_DEL(&cwl->list); |
| 781 | free(cwl->s); |
| 782 | free(cwl); |
Willy Tarreau | deb9ed8 | 2010-01-03 21:03:22 +0100 | [diff] [blame] | 783 | } |
Willy Tarreau | 0fc45a7 | 2007-06-17 00:36:03 +0200 | [diff] [blame] | 784 | |
| 785 | list_for_each_entry_safe(cond, condb, &p->block_cond, list) { |
| 786 | LIST_DEL(&cond->list); |
| 787 | prune_acl_cond(cond); |
| 788 | free(cond); |
| 789 | } |
| 790 | |
Willy Tarreau | b80c230 | 2007-11-30 20:51:32 +0100 | [diff] [blame] | 791 | list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) { |
| 792 | LIST_DEL(&cond->list); |
| 793 | prune_acl_cond(cond); |
| 794 | free(cond); |
| 795 | } |
| 796 | |
Willy Tarreau | 0fc45a7 | 2007-06-17 00:36:03 +0200 | [diff] [blame] | 797 | for (exp = p->req_exp; exp != NULL; ) { |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 798 | if (exp->preg) { |
Willy Tarreau | 0fc45a7 | 2007-06-17 00:36:03 +0200 | [diff] [blame] | 799 | regfree((regex_t *)exp->preg); |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 800 | free((regex_t *)exp->preg); |
| 801 | } |
| 802 | |
Willy Tarreau | 0fc45a7 | 2007-06-17 00:36:03 +0200 | [diff] [blame] | 803 | if (exp->replace && exp->action != ACT_SETBE) |
| 804 | free((char *)exp->replace); |
| 805 | expb = exp; |
| 806 | exp = exp->next; |
| 807 | free(expb); |
| 808 | } |
| 809 | |
| 810 | for (exp = p->rsp_exp; exp != NULL; ) { |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 811 | if (exp->preg) { |
Willy Tarreau | 0fc45a7 | 2007-06-17 00:36:03 +0200 | [diff] [blame] | 812 | regfree((regex_t *)exp->preg); |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 813 | free((regex_t *)exp->preg); |
| 814 | } |
| 815 | |
Willy Tarreau | 0fc45a7 | 2007-06-17 00:36:03 +0200 | [diff] [blame] | 816 | if (exp->replace && exp->action != ACT_SETBE) |
| 817 | free((char *)exp->replace); |
| 818 | expb = exp; |
| 819 | exp = exp->next; |
| 820 | free(expb); |
| 821 | } |
| 822 | |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 823 | /* build a list of unique uri_auths */ |
| 824 | if (!ua) |
| 825 | ua = p->uri_auth; |
| 826 | else { |
| 827 | /* check if p->uri_auth is unique */ |
| 828 | for (uap = ua; uap; uap=uap->next) |
| 829 | if (uap == p->uri_auth) |
| 830 | break; |
| 831 | |
Willy Tarreau | accc4e1 | 2008-06-24 11:14:45 +0200 | [diff] [blame] | 832 | if (!uap && p->uri_auth) { |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 833 | /* add it, if it is */ |
| 834 | p->uri_auth->next = ua; |
| 835 | ua = p->uri_auth; |
| 836 | } |
| 837 | } |
Willy Tarreau | 0fc45a7 | 2007-06-17 00:36:03 +0200 | [diff] [blame] | 838 | |
Krzysztof Piotr Oledzki | a643baf | 2008-05-29 23:53:44 +0200 | [diff] [blame] | 839 | list_for_each_entry_safe(acl, aclb, &p->acl, list) { |
| 840 | LIST_DEL(&acl->list); |
| 841 | prune_acl(acl); |
| 842 | free(acl); |
| 843 | } |
| 844 | |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 845 | list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) { |
| 846 | LIST_DEL(&rule->list); |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 847 | prune_acl_cond(rule->cond); |
| 848 | free(rule->cond); |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 849 | free(rule); |
| 850 | } |
| 851 | |
Willy Tarreau | b463dfb | 2008-06-07 23:08:56 +0200 | [diff] [blame] | 852 | list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) { |
| 853 | LIST_DEL(&rdr->list); |
Willy Tarreau | f285f54 | 2010-01-03 20:03:03 +0100 | [diff] [blame] | 854 | if (rdr->cond) { |
| 855 | prune_acl_cond(rdr->cond); |
| 856 | free(rdr->cond); |
| 857 | } |
Willy Tarreau | b463dfb | 2008-06-07 23:08:56 +0200 | [diff] [blame] | 858 | free(rdr->rdr_str); |
| 859 | free(rdr); |
| 860 | } |
| 861 | |
Simon Horman | ac82142 | 2011-07-15 13:14:09 +0900 | [diff] [blame] | 862 | deinit_tcp_rules(&p->tcp_req.inspect_rules); |
| 863 | deinit_tcp_rules(&p->tcp_req.l4_rules); |
| 864 | |
Simon Horman | 6fb8259 | 2011-07-15 13:14:11 +0900 | [diff] [blame] | 865 | deinit_stick_rules(&p->storersp_rules); |
| 866 | deinit_stick_rules(&p->sticking_rules); |
| 867 | |
Willy Tarreau | a534fea | 2008-08-03 12:19:50 +0200 | [diff] [blame] | 868 | free(p->appsession_name); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 869 | |
| 870 | h = p->req_cap; |
| 871 | while (h) { |
| 872 | h_next = h->next; |
Willy Tarreau | a534fea | 2008-08-03 12:19:50 +0200 | [diff] [blame] | 873 | free(h->name); |
Willy Tarreau | cf7f320 | 2007-05-13 22:46:04 +0200 | [diff] [blame] | 874 | pool_destroy2(h->pool); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 875 | free(h); |
| 876 | h = h_next; |
| 877 | }/* end while(h) */ |
| 878 | |
| 879 | h = p->rsp_cap; |
| 880 | while (h) { |
| 881 | h_next = h->next; |
Willy Tarreau | a534fea | 2008-08-03 12:19:50 +0200 | [diff] [blame] | 882 | free(h->name); |
Willy Tarreau | cf7f320 | 2007-05-13 22:46:04 +0200 | [diff] [blame] | 883 | pool_destroy2(h->pool); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 884 | free(h); |
| 885 | h = h_next; |
| 886 | }/* end while(h) */ |
Krzysztof Piotr Oledzki | a643baf | 2008-05-29 23:53:44 +0200 | [diff] [blame] | 887 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 888 | s = p->srv; |
| 889 | while (s) { |
| 890 | s_next = s->next; |
Krzysztof Piotr Oledzki | a643baf | 2008-05-29 23:53:44 +0200 | [diff] [blame] | 891 | |
| 892 | if (s->check) { |
| 893 | task_delete(s->check); |
| 894 | task_free(s->check); |
| 895 | } |
| 896 | |
Willy Tarreau | a534fea | 2008-08-03 12:19:50 +0200 | [diff] [blame] | 897 | free(s->id); |
| 898 | free(s->cookie); |
Nick Chalk | 57b1bf7 | 2010-03-16 15:50:46 +0000 | [diff] [blame] | 899 | free(s->check_data); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 900 | free(s); |
| 901 | s = s_next; |
| 902 | }/* end while(s) */ |
Krzysztof Piotr Oledzki | a643baf | 2008-05-29 23:53:44 +0200 | [diff] [blame] | 903 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 904 | l = p->listen; |
| 905 | while (l) { |
| 906 | l_next = l->next; |
Willy Tarreau | f6e2cc7 | 2010-09-03 10:38:17 +0200 | [diff] [blame] | 907 | unbind_listener(l); |
| 908 | delete_listener(l); |
Krzysztof Piotr Oledzki | aff01ea | 2010-02-05 20:31:44 +0100 | [diff] [blame] | 909 | free(l->name); |
| 910 | free(l->counters); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 911 | free(l); |
| 912 | l = l_next; |
| 913 | }/* end while(l) */ |
Krzysztof Piotr Oledzki | a643baf | 2008-05-29 23:53:44 +0200 | [diff] [blame] | 914 | |
Krzysztof Piotr Oledzki | aff01ea | 2010-02-05 20:31:44 +0100 | [diff] [blame] | 915 | free(p->desc); |
| 916 | free(p->fwdfor_hdr_name); |
| 917 | |
Willy Tarreau | ff011f2 | 2011-01-06 17:51:27 +0100 | [diff] [blame] | 918 | free_http_req_rules(&p->http_req_rules); |
Krzysztof Piotr Oledzki | 59bb218 | 2010-01-29 17:58:21 +0100 | [diff] [blame] | 919 | |
Willy Tarreau | cf7f320 | 2007-05-13 22:46:04 +0200 | [diff] [blame] | 920 | pool_destroy2(p->req_cap_pool); |
| 921 | pool_destroy2(p->rsp_cap_pool); |
Krzysztof Piotr Oledzki | a643baf | 2008-05-29 23:53:44 +0200 | [diff] [blame] | 922 | pool_destroy2(p->hdr_idx_pool); |
Simon Horman | b08584a | 2011-07-15 13:14:10 +0900 | [diff] [blame] | 923 | pool_destroy2(p->table.pool); |
Krzysztof Piotr Oledzki | 9610504 | 2010-01-29 17:50:44 +0100 | [diff] [blame] | 924 | |
Willy Tarreau | 4d2d098 | 2007-05-14 00:39:29 +0200 | [diff] [blame] | 925 | p0 = p; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 926 | p = p->next; |
Willy Tarreau | 4d2d098 | 2007-05-14 00:39:29 +0200 | [diff] [blame] | 927 | free(p0); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 928 | }/* end while(p) */ |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 929 | |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 930 | while (ua) { |
| 931 | uap = ua; |
| 932 | ua = ua->next; |
| 933 | |
Willy Tarreau | a534fea | 2008-08-03 12:19:50 +0200 | [diff] [blame] | 934 | free(uap->uri_prefix); |
| 935 | free(uap->auth_realm); |
Krzysztof Piotr Oledzki | 48cb2ae | 2009-10-02 22:51:14 +0200 | [diff] [blame] | 936 | free(uap->node); |
| 937 | free(uap->desc); |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 938 | |
Krzysztof Piotr Oledzki | 8c8bd45 | 2010-01-29 19:29:32 +0100 | [diff] [blame] | 939 | userlist_free(uap->userlist); |
Willy Tarreau | ff011f2 | 2011-01-06 17:51:27 +0100 | [diff] [blame] | 940 | free_http_req_rules(&uap->http_req_rules); |
Krzysztof Piotr Oledzki | 8c8bd45 | 2010-01-29 19:29:32 +0100 | [diff] [blame] | 941 | |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 942 | free(uap); |
| 943 | } |
| 944 | |
Krzysztof Piotr Oledzki | 9610504 | 2010-01-29 17:50:44 +0100 | [diff] [blame] | 945 | userlist_free(userlist); |
| 946 | |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 947 | protocol_unbind_all(); |
| 948 | |
Joe Williams | df5b38f | 2010-12-29 17:05:48 +0100 | [diff] [blame] | 949 | free(global.log_send_hostname); global.log_send_hostname = NULL; |
Kevinm | 48936af | 2010-12-22 16:08:21 +0000 | [diff] [blame] | 950 | free(global.log_tag); global.log_tag = NULL; |
Willy Tarreau | a534fea | 2008-08-03 12:19:50 +0200 | [diff] [blame] | 951 | free(global.chroot); global.chroot = NULL; |
| 952 | free(global.pidfile); global.pidfile = NULL; |
Krzysztof Piotr Oledzki | 48cb2ae | 2009-10-02 22:51:14 +0200 | [diff] [blame] | 953 | free(global.node); global.node = NULL; |
| 954 | free(global.desc); global.desc = NULL; |
Willy Tarreau | a534fea | 2008-08-03 12:19:50 +0200 | [diff] [blame] | 955 | free(fdtab); fdtab = NULL; |
| 956 | free(oldpids); oldpids = NULL; |
Krzysztof Piotr Oledzki | 8001d61 | 2008-05-31 13:53:23 +0200 | [diff] [blame] | 957 | |
Willy Tarreau | 477ecd8 | 2010-01-03 21:12:30 +0100 | [diff] [blame] | 958 | list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) { |
| 959 | LIST_DEL(&wl->list); |
| 960 | free(wl); |
| 961 | } |
| 962 | |
Willy Tarreau | c6ca1a0 | 2007-05-13 19:43:47 +0200 | [diff] [blame] | 963 | pool_destroy2(pool2_session); |
Willy Tarreau | 7341d94 | 2007-05-13 19:56:02 +0200 | [diff] [blame] | 964 | pool_destroy2(pool2_buffer); |
Willy Tarreau | 332f8bf | 2007-05-13 21:36:56 +0200 | [diff] [blame] | 965 | pool_destroy2(pool2_requri); |
Willy Tarreau | c6ca1a0 | 2007-05-13 19:43:47 +0200 | [diff] [blame] | 966 | pool_destroy2(pool2_task); |
Willy Tarreau | 086b3b4 | 2007-05-13 21:45:51 +0200 | [diff] [blame] | 967 | pool_destroy2(pool2_capture); |
Willy Tarreau | 63963c6 | 2007-05-13 21:29:55 +0200 | [diff] [blame] | 968 | pool_destroy2(pool2_appsess); |
Willy Tarreau | e4d7e55 | 2007-05-13 20:19:55 +0200 | [diff] [blame] | 969 | pool_destroy2(pool2_pendconn); |
Willy Tarreau | 24f4efa | 2010-08-27 17:56:48 +0200 | [diff] [blame] | 970 | pool_destroy2(pool2_sig_handlers); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 971 | |
| 972 | if (have_appsession) { |
Willy Tarreau | 63963c6 | 2007-05-13 21:29:55 +0200 | [diff] [blame] | 973 | pool_destroy2(apools.serverid); |
| 974 | pool_destroy2(apools.sessid); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 975 | } |
Krzysztof Piotr Oledzki | a643baf | 2008-05-29 23:53:44 +0200 | [diff] [blame] | 976 | |
| 977 | deinit_pollers(); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 978 | } /* end deinit() */ |
| 979 | |
Willy Tarreau | bb545b4 | 2010-08-25 12:58:59 +0200 | [diff] [blame] | 980 | /* sends the signal <sig> to all pids found in <oldpids>. Returns the number of |
| 981 | * pids the signal was correctly delivered to. |
| 982 | */ |
| 983 | static int tell_old_pids(int sig) |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 984 | { |
| 985 | int p; |
Willy Tarreau | bb545b4 | 2010-08-25 12:58:59 +0200 | [diff] [blame] | 986 | int ret = 0; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 987 | for (p = 0; p < nb_oldpids; p++) |
Willy Tarreau | bb545b4 | 2010-08-25 12:58:59 +0200 | [diff] [blame] | 988 | if (kill(oldpids[p], sig) == 0) |
| 989 | ret++; |
| 990 | return ret; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 991 | } |
| 992 | |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 993 | /* |
| 994 | * Runs the polling loop |
| 995 | * |
| 996 | * FIXME: |
| 997 | * - we still use 'listeners' to check whether we want to stop or not. |
| 998 | * |
| 999 | */ |
| 1000 | void run_poll_loop() |
| 1001 | { |
Willy Tarreau | 0c303ee | 2008-07-07 00:09:58 +0200 | [diff] [blame] | 1002 | int next; |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 1003 | |
Willy Tarreau | b0b37bc | 2008-06-23 14:00:57 +0200 | [diff] [blame] | 1004 | tv_update_date(0,1); |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 1005 | while (1) { |
Willy Tarreau | 2985794 | 2009-05-10 09:01:21 +0200 | [diff] [blame] | 1006 | /* check if we caught some signals and process them */ |
| 1007 | signal_process_queue(); |
| 1008 | |
Willy Tarreau | 58b458d | 2008-06-29 22:40:23 +0200 | [diff] [blame] | 1009 | /* Check if we can expire some tasks */ |
| 1010 | wake_expired_tasks(&next); |
| 1011 | |
| 1012 | /* Process a few tasks */ |
Willy Tarreau | d825eef | 2007-05-12 22:35:00 +0200 | [diff] [blame] | 1013 | process_runnable_tasks(&next); |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 1014 | |
Willy Tarreau | 58b458d | 2008-06-29 22:40:23 +0200 | [diff] [blame] | 1015 | /* maintain all proxies in a consistent state. This should quickly |
| 1016 | * become a task because it becomes expensive when there are huge |
| 1017 | * numbers of proxies. */ |
| 1018 | maintain_proxies(&next); |
| 1019 | |
Willy Tarreau | af7ad00 | 2010-08-31 15:39:26 +0200 | [diff] [blame] | 1020 | /* stop when there's nothing left to do */ |
| 1021 | if (jobs == 0) |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 1022 | break; |
| 1023 | |
Willy Tarreau | 58b458d | 2008-06-29 22:40:23 +0200 | [diff] [blame] | 1024 | /* The poller will ensure it returns around <next> */ |
Willy Tarreau | 0c303ee | 2008-07-07 00:09:58 +0200 | [diff] [blame] | 1025 | cur_poller.poll(&cur_poller, next); |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 1026 | } |
| 1027 | } |
| 1028 | |
| 1029 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1030 | int main(int argc, char **argv) |
| 1031 | { |
| 1032 | int err, retry; |
| 1033 | struct rlimit limit; |
| 1034 | FILE *pidfile = NULL; |
Emeric Brun | cf20bf1 | 2010-10-22 16:06:11 +0200 | [diff] [blame] | 1035 | char errmsg[100]; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1036 | |
Emeric Brun | cf20bf1 | 2010-10-22 16:06:11 +0200 | [diff] [blame] | 1037 | init(argc, argv); |
Willy Tarreau | 24f4efa | 2010-08-27 17:56:48 +0200 | [diff] [blame] | 1038 | signal_register_fct(SIGQUIT, dump, SIGQUIT); |
| 1039 | signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1); |
| 1040 | signal_register_fct(SIGHUP, sig_dump_state, SIGHUP); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1041 | |
Willy Tarreau | e437c44 | 2010-03-17 18:02:46 +0100 | [diff] [blame] | 1042 | /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL. |
| 1043 | * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL |
| 1044 | * was defined there, so let's stay on the safe side. |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1045 | */ |
Willy Tarreau | 24f4efa | 2010-08-27 17:56:48 +0200 | [diff] [blame] | 1046 | signal_register_fct(SIGPIPE, NULL, 0); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1047 | |
Willy Tarreau | dc23a92 | 2011-02-16 11:10:36 +0100 | [diff] [blame] | 1048 | /* ulimits */ |
| 1049 | if (!global.rlimit_nofile) |
| 1050 | global.rlimit_nofile = global.maxsock; |
| 1051 | |
| 1052 | if (global.rlimit_nofile) { |
| 1053 | limit.rlim_cur = limit.rlim_max = global.rlimit_nofile; |
| 1054 | if (setrlimit(RLIMIT_NOFILE, &limit) == -1) { |
| 1055 | Warning("[%s.main()] Cannot raise FD limit to %d.\n", argv[0], global.rlimit_nofile); |
| 1056 | } |
| 1057 | } |
| 1058 | |
| 1059 | if (global.rlimit_memmax) { |
| 1060 | limit.rlim_cur = limit.rlim_max = |
| 1061 | global.rlimit_memmax * 1048576 / global.nbproc; |
| 1062 | #ifdef RLIMIT_AS |
| 1063 | if (setrlimit(RLIMIT_AS, &limit) == -1) { |
| 1064 | Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n", |
| 1065 | argv[0], global.rlimit_memmax); |
| 1066 | } |
| 1067 | #else |
| 1068 | if (setrlimit(RLIMIT_DATA, &limit) == -1) { |
| 1069 | Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n", |
| 1070 | argv[0], global.rlimit_memmax); |
| 1071 | } |
| 1072 | #endif |
| 1073 | } |
| 1074 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1075 | /* We will loop at most 100 times with 10 ms delay each time. |
| 1076 | * That's at most 1 second. We only send a signal to old pids |
| 1077 | * if we cannot grab at least one port. |
| 1078 | */ |
| 1079 | retry = MAX_START_RETRIES; |
| 1080 | err = ERR_NONE; |
| 1081 | while (retry >= 0) { |
| 1082 | struct timeval w; |
| 1083 | err = start_proxies(retry == 0 || nb_oldpids == 0); |
Willy Tarreau | e13e925 | 2007-12-20 23:05:50 +0100 | [diff] [blame] | 1084 | /* exit the loop on no error or fatal error */ |
| 1085 | if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE) |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1086 | break; |
Willy Tarreau | bb545b4 | 2010-08-25 12:58:59 +0200 | [diff] [blame] | 1087 | if (nb_oldpids == 0 || retry == 0) |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1088 | break; |
| 1089 | |
| 1090 | /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on |
| 1091 | * listening sockets. So on those platforms, it would be wiser to |
| 1092 | * simply send SIGUSR1, which will not be undoable. |
| 1093 | */ |
Willy Tarreau | bb545b4 | 2010-08-25 12:58:59 +0200 | [diff] [blame] | 1094 | if (tell_old_pids(SIGTTOU) == 0) { |
| 1095 | /* no need to wait if we can't contact old pids */ |
| 1096 | retry = 0; |
| 1097 | continue; |
| 1098 | } |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1099 | /* give some time to old processes to stop listening */ |
| 1100 | w.tv_sec = 0; |
| 1101 | w.tv_usec = 10*1000; |
| 1102 | select(0, NULL, NULL, NULL, &w); |
| 1103 | retry--; |
| 1104 | } |
| 1105 | |
| 1106 | /* Note: start_proxies() sends an alert when it fails. */ |
Willy Tarreau | 0a3b9d9 | 2009-02-04 17:05:23 +0100 | [diff] [blame] | 1107 | if ((err & ~ERR_WARN) != ERR_NONE) { |
Willy Tarreau | f68da46 | 2009-06-09 14:36:00 +0200 | [diff] [blame] | 1108 | if (retry != MAX_START_RETRIES && nb_oldpids) { |
| 1109 | protocol_unbind_all(); /* cleanup everything we can */ |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1110 | tell_old_pids(SIGTTIN); |
Willy Tarreau | f68da46 | 2009-06-09 14:36:00 +0200 | [diff] [blame] | 1111 | } |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1112 | exit(1); |
| 1113 | } |
| 1114 | |
| 1115 | if (listeners == 0) { |
| 1116 | Alert("[%s.main()] No enabled listener found (check the <listen> keywords) ! Exiting.\n", argv[0]); |
| 1117 | /* Note: we don't have to send anything to the old pids because we |
| 1118 | * never stopped them. */ |
| 1119 | exit(1); |
| 1120 | } |
| 1121 | |
Emeric Brun | cf20bf1 | 2010-10-22 16:06:11 +0200 | [diff] [blame] | 1122 | err = protocol_bind_all(errmsg, sizeof(errmsg)); |
| 1123 | if ((err & ~ERR_WARN) != ERR_NONE) { |
| 1124 | if ((err & ERR_ALERT) || (err & ERR_WARN)) |
| 1125 | Alert("[%s.main()] %s.\n", argv[0], errmsg); |
| 1126 | |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 1127 | Alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]); |
| 1128 | protocol_unbind_all(); /* cleanup everything we can */ |
| 1129 | if (nb_oldpids) |
| 1130 | tell_old_pids(SIGTTIN); |
| 1131 | exit(1); |
Emeric Brun | cf20bf1 | 2010-10-22 16:06:11 +0200 | [diff] [blame] | 1132 | } else if (err & ERR_WARN) { |
| 1133 | Alert("[%s.main()] %s.\n", argv[0], errmsg); |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 1134 | } |
| 1135 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1136 | /* prepare pause/play signals */ |
Willy Tarreau | 24f4efa | 2010-08-27 17:56:48 +0200 | [diff] [blame] | 1137 | signal_register_fct(SIGTTOU, sig_pause, SIGTTOU); |
| 1138 | signal_register_fct(SIGTTIN, sig_listen, SIGTTIN); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1139 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1140 | /* MODE_QUIET can inhibit alerts and warnings below this line */ |
| 1141 | |
| 1142 | global.mode &= ~MODE_STARTING; |
| 1143 | if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) { |
| 1144 | /* detach from the tty */ |
| 1145 | fclose(stdin); fclose(stdout); fclose(stderr); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1146 | } |
| 1147 | |
| 1148 | /* open log & pid files before the chroot */ |
| 1149 | if (global.mode & MODE_DAEMON && global.pidfile != NULL) { |
| 1150 | int pidfd; |
| 1151 | unlink(global.pidfile); |
| 1152 | pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644); |
| 1153 | if (pidfd < 0) { |
| 1154 | Alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile); |
| 1155 | if (nb_oldpids) |
| 1156 | tell_old_pids(SIGTTIN); |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 1157 | protocol_unbind_all(); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1158 | exit(1); |
| 1159 | } |
| 1160 | pidfile = fdopen(pidfd, "w"); |
| 1161 | } |
| 1162 | |
Willy Tarreau | b38651a | 2007-03-24 17:24:39 +0100 | [diff] [blame] | 1163 | #ifdef CONFIG_HAP_CTTPROXY |
| 1164 | if (global.last_checks & LSTCHK_CTTPROXY) { |
| 1165 | int ret; |
| 1166 | |
| 1167 | ret = check_cttproxy_version(); |
| 1168 | if (ret < 0) { |
| 1169 | Alert("[%s.main()] Cannot enable cttproxy.\n%s", |
| 1170 | argv[0], |
| 1171 | (ret == -1) ? " Incorrect module version.\n" |
| 1172 | : " Make sure you have enough permissions and that the module is loaded.\n"); |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 1173 | protocol_unbind_all(); |
Willy Tarreau | b38651a | 2007-03-24 17:24:39 +0100 | [diff] [blame] | 1174 | exit(1); |
| 1175 | } |
| 1176 | } |
| 1177 | #endif |
| 1178 | |
| 1179 | if ((global.last_checks & LSTCHK_NETADM) && global.uid) { |
| 1180 | Alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n" |
Willy Tarreau | 4e30ed7 | 2009-02-04 18:02:48 +0100 | [diff] [blame] | 1181 | "", argv[0]); |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 1182 | protocol_unbind_all(); |
Willy Tarreau | b38651a | 2007-03-24 17:24:39 +0100 | [diff] [blame] | 1183 | exit(1); |
| 1184 | } |
| 1185 | |
Willy Tarreau | 4e30ed7 | 2009-02-04 18:02:48 +0100 | [diff] [blame] | 1186 | /* If the user is not root, we'll still let him try the configuration |
| 1187 | * but we inform him that unexpected behaviour may occur. |
| 1188 | */ |
| 1189 | if ((global.last_checks & LSTCHK_NETADM) && getuid()) |
| 1190 | Warning("[%s.main()] Some options which require full privileges" |
| 1191 | " might not work well.\n" |
| 1192 | "", argv[0]); |
| 1193 | |
Willy Tarreau | f223cc0 | 2007-10-15 18:57:08 +0200 | [diff] [blame] | 1194 | /* chroot if needed */ |
| 1195 | if (global.chroot != NULL) { |
| 1196 | if (chroot(global.chroot) == -1) { |
| 1197 | Alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot); |
| 1198 | if (nb_oldpids) |
| 1199 | tell_old_pids(SIGTTIN); |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 1200 | protocol_unbind_all(); |
Willy Tarreau | f223cc0 | 2007-10-15 18:57:08 +0200 | [diff] [blame] | 1201 | exit(1); |
| 1202 | } |
| 1203 | chdir("/"); |
| 1204 | } |
| 1205 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1206 | if (nb_oldpids) |
Willy Tarreau | bb545b4 | 2010-08-25 12:58:59 +0200 | [diff] [blame] | 1207 | nb_oldpids = tell_old_pids(oldpids_sig); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1208 | |
| 1209 | /* Note that any error at this stage will be fatal because we will not |
| 1210 | * be able to restart the old pids. |
| 1211 | */ |
| 1212 | |
| 1213 | /* setgid / setuid */ |
| 1214 | if (global.gid && setgid(global.gid) == -1) { |
| 1215 | Alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid); |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 1216 | protocol_unbind_all(); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1217 | exit(1); |
| 1218 | } |
| 1219 | |
| 1220 | if (global.uid && setuid(global.uid) == -1) { |
| 1221 | Alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid); |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 1222 | protocol_unbind_all(); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1223 | exit(1); |
| 1224 | } |
| 1225 | |
| 1226 | /* check ulimits */ |
| 1227 | limit.rlim_cur = limit.rlim_max = 0; |
| 1228 | getrlimit(RLIMIT_NOFILE, &limit); |
| 1229 | if (limit.rlim_cur < global.maxsock) { |
| 1230 | Warning("[%s.main()] FD limit (%d) too low for maxconn=%d/maxsock=%d. Please raise 'ulimit-n' to %d or more to avoid any trouble.\n", |
Willy Tarreau | 1772ece | 2009-04-03 14:49:12 +0200 | [diff] [blame] | 1231 | argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1232 | } |
| 1233 | |
| 1234 | if (global.mode & MODE_DAEMON) { |
Willy Tarreau | 0b9c02c | 2009-02-04 22:05:05 +0100 | [diff] [blame] | 1235 | struct proxy *px; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1236 | int ret = 0; |
| 1237 | int proc; |
| 1238 | |
| 1239 | /* the father launches the required number of processes */ |
| 1240 | for (proc = 0; proc < global.nbproc; proc++) { |
| 1241 | ret = fork(); |
| 1242 | if (ret < 0) { |
| 1243 | Alert("[%s.main()] Cannot fork.\n", argv[0]); |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 1244 | protocol_unbind_all(); |
Willy Tarreau | d680371 | 2007-10-16 07:44:56 +0200 | [diff] [blame] | 1245 | exit(1); /* there has been an error */ |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1246 | } |
| 1247 | else if (ret == 0) /* child breaks here */ |
| 1248 | break; |
| 1249 | if (pidfile != NULL) { |
| 1250 | fprintf(pidfile, "%d\n", ret); |
| 1251 | fflush(pidfile); |
| 1252 | } |
Willy Tarreau | dcd4771 | 2007-11-04 23:35:08 +0100 | [diff] [blame] | 1253 | relative_pid++; /* each child will get a different one */ |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1254 | } |
| 1255 | /* close the pidfile both in children and father */ |
| 1256 | if (pidfile != NULL) |
| 1257 | fclose(pidfile); |
Willy Tarreau | d137dd3 | 2010-08-25 12:49:05 +0200 | [diff] [blame] | 1258 | |
| 1259 | /* We won't ever use this anymore */ |
| 1260 | free(oldpids); oldpids = NULL; |
| 1261 | free(global.chroot); global.chroot = NULL; |
| 1262 | free(global.pidfile); global.pidfile = NULL; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1263 | |
Willy Tarreau | 0b9c02c | 2009-02-04 22:05:05 +0100 | [diff] [blame] | 1264 | /* we might have to unbind some proxies from some processes */ |
| 1265 | px = proxy; |
| 1266 | while (px != NULL) { |
| 1267 | if (px->bind_proc && px->state != PR_STSTOPPED) { |
| 1268 | if (!(px->bind_proc & (1 << proc))) |
| 1269 | stop_proxy(px); |
| 1270 | } |
| 1271 | px = px->next; |
| 1272 | } |
| 1273 | |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1274 | if (proc == global.nbproc) |
| 1275 | exit(0); /* parent must leave */ |
| 1276 | |
| 1277 | /* if we're NOT in QUIET mode, we should now close the 3 first FDs to ensure |
| 1278 | * that we can detach from the TTY. We MUST NOT do it in other cases since |
| 1279 | * it would have already be done, and 0-2 would have been affected to listening |
| 1280 | * sockets |
| 1281 | */ |
Willy Tarreau | 106cb76 | 2008-11-16 07:40:34 +0100 | [diff] [blame] | 1282 | if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) { |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1283 | /* detach from the tty */ |
| 1284 | fclose(stdin); fclose(stdout); fclose(stderr); |
Willy Tarreau | 106cb76 | 2008-11-16 07:40:34 +0100 | [diff] [blame] | 1285 | global.mode &= ~MODE_VERBOSE; |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1286 | global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */ |
| 1287 | } |
| 1288 | pid = getpid(); /* update child's pid */ |
| 1289 | setsid(); |
Willy Tarreau | 2ff7622 | 2007-04-09 19:29:56 +0200 | [diff] [blame] | 1290 | fork_poller(); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1291 | } |
| 1292 | |
Willy Tarreau | dd81598 | 2007-10-16 12:25:14 +0200 | [diff] [blame] | 1293 | protocol_enable_all(); |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 1294 | /* |
| 1295 | * That's it : the central polling loop. Run until we stop. |
| 1296 | */ |
| 1297 | run_poll_loop(); |
Willy Tarreau | baaee00 | 2006-06-26 02:48:02 +0200 | [diff] [blame] | 1298 | |
| 1299 | /* Free all Hash Keys and all Hash elements */ |
| 1300 | appsession_cleanup(); |
| 1301 | /* Do some cleanup */ |
| 1302 | deinit(); |
| 1303 | |
| 1304 | exit(0); |
| 1305 | } |
| 1306 | |
| 1307 | |
| 1308 | /* |
| 1309 | * Local variables: |
| 1310 | * c-indent-level: 8 |
| 1311 | * c-basic-offset: 8 |
| 1312 | * End: |
| 1313 | */ |