| /* |
| * Configuration parser |
| * |
| * Copyright 2000-2011 Willy Tarreau <w@1wt.eu> |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| * |
| */ |
| |
| #ifdef USE_LIBCRYPT |
| /* This is to have crypt() defined on Linux */ |
| #define _GNU_SOURCE |
| |
| #ifdef USE_CRYPT_H |
| /* some platforms such as Solaris need this */ |
| #include <crypt.h> |
| #endif |
| #endif /* USE_LIBCRYPT */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <netdb.h> |
| #include <ctype.h> |
| #include <pwd.h> |
| #include <grp.h> |
| #include <errno.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <fcntl.h> |
| #include <unistd.h> |
| |
| #include <haproxy/acl.h> |
| #include <haproxy/action-t.h> |
| #include <haproxy/api.h> |
| #include <haproxy/auth.h> |
| #include <haproxy/backend.h> |
| #include <haproxy/capture.h> |
| #include <haproxy/cfgparse.h> |
| #include <haproxy/channel.h> |
| #include <haproxy/check.h> |
| #include <haproxy/chunk.h> |
| #include <haproxy/connection.h> |
| #include <haproxy/dns.h> |
| #include <haproxy/errors.h> |
| #include <haproxy/filters.h> |
| #include <haproxy/frontend.h> |
| #include <haproxy/global.h> |
| #include <haproxy/http_ana.h> |
| #include <haproxy/http_rules.h> |
| #include <haproxy/lb_chash.h> |
| #include <haproxy/lb_fas.h> |
| #include <haproxy/lb_fwlc.h> |
| #include <haproxy/lb_fwrr.h> |
| #include <haproxy/lb_map.h> |
| #include <haproxy/listener.h> |
| #include <haproxy/log.h> |
| #include <haproxy/mailers.h> |
| #include <haproxy/namespace.h> |
| #include <haproxy/obj_type-t.h> |
| #include <haproxy/peers-t.h> |
| #include <haproxy/peers.h> |
| #include <haproxy/pool.h> |
| #include <haproxy/protocol.h> |
| #include <haproxy/proxy.h> |
| #include <haproxy/sample.h> |
| #include <haproxy/server.h> |
| #include <haproxy/session.h> |
| #include <haproxy/stats-t.h> |
| #include <haproxy/stick_table.h> |
| #include <haproxy/stream.h> |
| #include <haproxy/task.h> |
| #include <haproxy/tcp_rules.h> |
| #include <haproxy/thread.h> |
| #include <haproxy/time.h> |
| #include <haproxy/tools.h> |
| #include <haproxy/uri_auth-t.h> |
| |
| |
| /* Used to chain configuration sections definitions. This list |
| * stores struct cfg_section |
| */ |
| struct list sections = LIST_HEAD_INIT(sections); |
| |
| struct list postparsers = LIST_HEAD_INIT(postparsers); |
| |
| char *cursection = NULL; |
| struct proxy defproxy = { }; /* fake proxy used to assign default values on all instances */ |
| int cfg_maxpconn = 0; /* # of simultaneous connections per proxy (-N) */ |
| int cfg_maxconn = 0; /* # of simultaneous connections, (-n) */ |
| char *cfg_scope = NULL; /* the current scope during the configuration parsing */ |
| |
| /* List head of all known configuration keywords */ |
| struct cfg_kw_list cfg_keywords = { |
| .list = LIST_HEAD_INIT(cfg_keywords.list) |
| }; |
| |
| /* |
| * converts <str> to a list of listeners which are dynamically allocated. |
| * The format is "{addr|'*'}:port[-end][,{addr|'*'}:port[-end]]*", where : |
| * - <addr> can be empty or "*" to indicate INADDR_ANY ; |
| * - <port> is a numerical port from 1 to 65535 ; |
| * - <end> indicates to use the range from <port> to <end> instead (inclusive). |
| * This can be repeated as many times as necessary, separated by a coma. |
| * Function returns 1 for success or 0 if error. In case of errors, if <err> is |
| * not NULL, it must be a valid pointer to either NULL or a freeable area that |
| * will be replaced with an error message. |
| */ |
| int str2listener(char *str, struct proxy *curproxy, struct bind_conf *bind_conf, const char *file, int line, char **err) |
| { |
| char *next, *dupstr; |
| int port, end; |
| |
| next = dupstr = strdup(str); |
| |
| while (next && *next) { |
| int inherited = 0; |
| struct sockaddr_storage *ss2; |
| int fd = -1; |
| |
| str = next; |
| /* 1) look for the end of the first address */ |
| if ((next = strchr(str, ',')) != NULL) { |
| *next++ = 0; |
| } |
| |
| ss2 = str2sa_range(str, NULL, &port, &end, err, |
| curproxy == global.stats_fe ? NULL : global.unix_bind.prefix, |
| NULL, PA_O_RESOLVE | PA_O_PORT_OK | PA_O_PORT_MAND | PA_O_PORT_RANGE); |
| if (!ss2) |
| goto fail; |
| |
| if (ss2->ss_family == AF_CUST_EXISTING_FD) { |
| socklen_t addr_len; |
| inherited = 1; |
| |
| /* We want to attach to an already bound fd whose number |
| * is in the addr part of ss2 when cast to sockaddr_in. |
| * Note that by definition there is a single listener. |
| * We still have to determine the address family to |
| * register the correct protocol. |
| */ |
| fd = ((struct sockaddr_in *)ss2)->sin_addr.s_addr; |
| addr_len = sizeof(*ss2); |
| if (getsockname(fd, (struct sockaddr *)ss2, &addr_len) == -1) { |
| memprintf(err, "cannot use file descriptor '%d' : %s.\n", fd, strerror(errno)); |
| goto fail; |
| } |
| |
| port = end = get_host_port(ss2); |
| |
| } else if (ss2->ss_family == AF_CUST_SOCKPAIR) { |
| socklen_t addr_len; |
| inherited = 1; |
| |
| fd = ((struct sockaddr_in *)ss2)->sin_addr.s_addr; |
| addr_len = sizeof(*ss2); |
| if (getsockname(fd, (struct sockaddr *)ss2, &addr_len) == -1) { |
| memprintf(err, "cannot use file descriptor '%d' : %s.\n", fd, strerror(errno)); |
| goto fail; |
| } |
| |
| ss2->ss_family = AF_CUST_SOCKPAIR; /* reassign AF_CUST_SOCKPAIR because of getsockname */ |
| port = end = 0; |
| } |
| |
| /* OK the address looks correct */ |
| if (!create_listeners(bind_conf, ss2, port, end, fd, inherited, err)) { |
| memprintf(err, "%s for address '%s'.\n", *err, str); |
| goto fail; |
| } |
| } /* end while(next) */ |
| free(dupstr); |
| return 1; |
| fail: |
| free(dupstr); |
| return 0; |
| } |
| |
| /* |
| * Report an error in <msg> when there are too many arguments. This version is |
| * intended to be used by keyword parsers so that the message will be included |
| * into the general error message. The index is the current keyword in args. |
| * Return 0 if the number of argument is correct, otherwise build a message and |
| * return 1. Fill err_code with an ERR_ALERT and an ERR_FATAL if not null. The |
| * message may also be null, it will simply not be produced (useful to check only). |
| * <msg> and <err_code> are only affected on error. |
| */ |
| int too_many_args_idx(int maxarg, int index, char **args, char **msg, int *err_code) |
| { |
| int i; |
| |
| if (!*args[index + maxarg + 1]) |
| return 0; |
| |
| if (msg) { |
| *msg = NULL; |
| memprintf(msg, "%s", args[0]); |
| for (i = 1; i <= index; i++) |
| memprintf(msg, "%s %s", *msg, args[i]); |
| |
| memprintf(msg, "'%s' cannot handle unexpected argument '%s'.", *msg, args[index + maxarg + 1]); |
| } |
| if (err_code) |
| *err_code |= ERR_ALERT | ERR_FATAL; |
| |
| return 1; |
| } |
| |
| /* |
| * same as too_many_args_idx with a 0 index |
| */ |
| int too_many_args(int maxarg, char **args, char **msg, int *err_code) |
| { |
| return too_many_args_idx(maxarg, 0, args, msg, err_code); |
| } |
| |
| /* |
| * Report a fatal Alert when there is too much arguments |
| * The index is the current keyword in args |
| * Return 0 if the number of argument is correct, otherwise emit an alert and return 1 |
| * Fill err_code with an ERR_ALERT and an ERR_FATAL |
| */ |
| int alertif_too_many_args_idx(int maxarg, int index, const char *file, int linenum, char **args, int *err_code) |
| { |
| char *kw = NULL; |
| int i; |
| |
| if (!*args[index + maxarg + 1]) |
| return 0; |
| |
| memprintf(&kw, "%s", args[0]); |
| for (i = 1; i <= index; i++) { |
| memprintf(&kw, "%s %s", kw, args[i]); |
| } |
| |
| ha_alert("parsing [%s:%d] : '%s' cannot handle unexpected argument '%s'.\n", file, linenum, kw, args[index + maxarg + 1]); |
| free(kw); |
| *err_code |= ERR_ALERT | ERR_FATAL; |
| return 1; |
| } |
| |
| /* |
| * same as alertif_too_many_args_idx with a 0 index |
| */ |
| int alertif_too_many_args(int maxarg, const char *file, int linenum, char **args, int *err_code) |
| { |
| return alertif_too_many_args_idx(maxarg, 0, file, linenum, args, err_code); |
| } |
| |
| |
| /* Report it if a request ACL condition uses some keywords that are incompatible |
| * with the place where the ACL is used. It returns either 0 or ERR_WARN so that |
| * its result can be or'ed with err_code. Note that <cond> may be NULL and then |
| * will be ignored. |
| */ |
| int warnif_cond_conflicts(const struct acl_cond *cond, unsigned int where, const char *file, int line) |
| { |
| const struct acl *acl; |
| const char *kw; |
| |
| if (!cond) |
| return 0; |
| |
| acl = acl_cond_conflicts(cond, where); |
| if (acl) { |
| if (acl->name && *acl->name) |
| ha_warning("parsing [%s:%d] : acl '%s' will never match because it only involves keywords that are incompatible with '%s'\n", |
| file, line, acl->name, sample_ckp_names(where)); |
| else |
| ha_warning("parsing [%s:%d] : anonymous acl will never match because it uses keyword '%s' which is incompatible with '%s'\n", |
| file, line, LIST_ELEM(acl->expr.n, struct acl_expr *, list)->kw, sample_ckp_names(where)); |
| return ERR_WARN; |
| } |
| if (!acl_cond_kw_conflicts(cond, where, &acl, &kw)) |
| return 0; |
| |
| if (acl->name && *acl->name) |
| ha_warning("parsing [%s:%d] : acl '%s' involves keywords '%s' which is incompatible with '%s'\n", |
| file, line, acl->name, kw, sample_ckp_names(where)); |
| else |
| ha_warning("parsing [%s:%d] : anonymous acl involves keyword '%s' which is incompatible with '%s'\n", |
| file, line, kw, sample_ckp_names(where)); |
| return ERR_WARN; |
| } |
| |
| /* Parse a string representing a process number or a set of processes. It must |
| * be "all", "odd", "even", a number between 1 and <max> or a range with |
| * two such numbers delimited by a dash ('-'). On success, it returns |
| * 0. otherwise it returns 1 with an error message in <err>. |
| * |
| * Note: this function can also be used to parse a thread number or a set of |
| * threads. |
| */ |
| int parse_process_number(const char *arg, unsigned long *proc, int max, int *autoinc, char **err) |
| { |
| if (autoinc) { |
| *autoinc = 0; |
| if (strncmp(arg, "auto:", 5) == 0) { |
| arg += 5; |
| *autoinc = 1; |
| } |
| } |
| |
| if (strcmp(arg, "all") == 0) |
| *proc |= ~0UL; |
| else if (strcmp(arg, "odd") == 0) |
| *proc |= ~0UL/3UL; /* 0x555....555 */ |
| else if (strcmp(arg, "even") == 0) |
| *proc |= (~0UL/3UL) << 1; /* 0xAAA...AAA */ |
| else { |
| const char *p, *dash = NULL; |
| unsigned int low, high; |
| |
| for (p = arg; *p; p++) { |
| if (*p == '-' && !dash) |
| dash = p; |
| else if (!isdigit((unsigned char)*p)) { |
| memprintf(err, "'%s' is not a valid number/range.", arg); |
| return -1; |
| } |
| } |
| |
| low = high = str2uic(arg); |
| if (dash) |
| high = ((!*(dash+1)) ? max : str2uic(dash + 1)); |
| |
| if (high < low) { |
| unsigned int swap = low; |
| low = high; |
| high = swap; |
| } |
| |
| if (low < 1 || low > max || high > max) { |
| memprintf(err, "'%s' is not a valid number/range." |
| " It supports numbers from 1 to %d.\n", |
| arg, max); |
| return 1; |
| } |
| |
| for (;low <= high; low++) |
| *proc |= 1UL << (low-1); |
| } |
| *proc &= ~0UL >> (LONGBITS - max); |
| |
| return 0; |
| } |
| |
| #ifdef USE_CPU_AFFINITY |
| /* Parse cpu sets. Each CPU set is either a unique number between 0 and |
| * <LONGBITS> or a range with two such numbers delimited by a dash |
| * ('-'). Multiple CPU numbers or ranges may be specified. On success, it |
| * returns 0. otherwise it returns 1 with an error message in <err>. |
| */ |
| unsigned long parse_cpu_set(const char **args, unsigned long *cpu_set, char **err) |
| { |
| int cur_arg = 0; |
| |
| *cpu_set = 0; |
| while (*args[cur_arg]) { |
| char *dash; |
| unsigned int low, high; |
| |
| if (!isdigit((unsigned char)*args[cur_arg])) { |
| memprintf(err, "'%s' is not a CPU range.\n", args[cur_arg]); |
| return -1; |
| } |
| |
| low = high = str2uic(args[cur_arg]); |
| if ((dash = strchr(args[cur_arg], '-')) != NULL) |
| high = ((!*(dash+1)) ? LONGBITS-1 : str2uic(dash + 1)); |
| |
| if (high < low) { |
| unsigned int swap = low; |
| low = high; |
| high = swap; |
| } |
| |
| if (high >= LONGBITS) { |
| memprintf(err, "supports CPU numbers from 0 to %d.\n", LONGBITS - 1); |
| return 1; |
| } |
| |
| while (low <= high) |
| *cpu_set |= 1UL << low++; |
| |
| cur_arg++; |
| } |
| return 0; |
| } |
| #endif |
| |
| void init_default_instance() |
| { |
| init_new_proxy(&defproxy); |
| defproxy.mode = PR_MODE_TCP; |
| defproxy.state = PR_STNEW; |
| defproxy.maxconn = cfg_maxpconn; |
| defproxy.conn_retries = CONN_RETRIES; |
| defproxy.redispatch_after = 0; |
| defproxy.options = PR_O_REUSE_SAFE; |
| defproxy.max_out_conns = MAX_SRV_LIST; |
| |
| defproxy.defsrv.check.inter = DEF_CHKINTR; |
| defproxy.defsrv.check.fastinter = 0; |
| defproxy.defsrv.check.downinter = 0; |
| defproxy.defsrv.agent.inter = DEF_CHKINTR; |
| defproxy.defsrv.agent.fastinter = 0; |
| defproxy.defsrv.agent.downinter = 0; |
| defproxy.defsrv.check.rise = DEF_RISETIME; |
| defproxy.defsrv.check.fall = DEF_FALLTIME; |
| defproxy.defsrv.agent.rise = DEF_AGENT_RISETIME; |
| defproxy.defsrv.agent.fall = DEF_AGENT_FALLTIME; |
| defproxy.defsrv.check.port = 0; |
| defproxy.defsrv.agent.port = 0; |
| defproxy.defsrv.maxqueue = 0; |
| defproxy.defsrv.minconn = 0; |
| defproxy.defsrv.maxconn = 0; |
| defproxy.defsrv.max_reuse = -1; |
| defproxy.defsrv.max_idle_conns = -1; |
| defproxy.defsrv.pool_purge_delay = 5000; |
| defproxy.defsrv.slowstart = 0; |
| defproxy.defsrv.onerror = DEF_HANA_ONERR; |
| defproxy.defsrv.consecutive_errors_limit = DEF_HANA_ERRLIMIT; |
| defproxy.defsrv.uweight = defproxy.defsrv.iweight = 1; |
| |
| defproxy.email_alert.level = LOG_ALERT; |
| defproxy.load_server_state_from_file = PR_SRV_STATE_FILE_UNSPEC; |
| } |
| |
| /* Allocate and initialize the frontend of a "peers" section found in |
| * file <file> at line <linenum> with <id> as ID. |
| * Return 0 if succeeded, -1 if not. |
| * Note that this function may be called from "default-server" |
| * or "peer" lines. |
| */ |
| static int init_peers_frontend(const char *file, int linenum, |
| const char *id, struct peers *peers) |
| { |
| struct proxy *p; |
| |
| if (peers->peers_fe) { |
| p = peers->peers_fe; |
| goto out; |
| } |
| |
| p = calloc(1, sizeof *p); |
| if (!p) { |
| ha_alert("parsing [%s:%d] : out of memory.\n", file, linenum); |
| return -1; |
| } |
| |
| init_new_proxy(p); |
| peers_setup_frontend(p); |
| p->parent = peers; |
| /* Finally store this frontend. */ |
| peers->peers_fe = p; |
| |
| out: |
| if (id && !p->id) |
| p->id = strdup(id); |
| free(p->conf.file); |
| p->conf.args.file = p->conf.file = strdup(file); |
| if (linenum != -1) |
| p->conf.args.line = p->conf.line = linenum; |
| |
| return 0; |
| } |
| |
| /* Only change ->file, ->line and ->arg struct bind_conf member values |
| * if already present. |
| */ |
| static struct bind_conf *bind_conf_uniq_alloc(struct proxy *p, |
| const char *file, int line, |
| const char *arg, struct xprt_ops *xprt) |
| { |
| struct bind_conf *bind_conf; |
| |
| if (!LIST_ISEMPTY(&p->conf.bind)) { |
| bind_conf = LIST_ELEM((&p->conf.bind)->n, typeof(bind_conf), by_fe); |
| free(bind_conf->file); |
| bind_conf->file = strdup(file); |
| bind_conf->line = line; |
| if (arg) { |
| free(bind_conf->arg); |
| bind_conf->arg = strdup(arg); |
| } |
| } |
| else { |
| bind_conf = bind_conf_alloc(p, file, line, arg, xprt); |
| } |
| |
| return bind_conf; |
| } |
| |
| /* |
| * Allocate a new struct peer parsed at line <linenum> in file <file> |
| * to be added to <peers>. |
| * Returns the new allocated structure if succeeded, NULL if not. |
| */ |
| static struct peer *cfg_peers_add_peer(struct peers *peers, |
| const char *file, int linenum, |
| const char *id, int local) |
| { |
| struct peer *p; |
| |
| p = calloc(1, sizeof *p); |
| if (!p) { |
| ha_alert("parsing [%s:%d] : out of memory.\n", file, linenum); |
| return NULL; |
| } |
| |
| /* the peers are linked backwards first */ |
| peers->count++; |
| p->next = peers->remote; |
| peers->remote = p; |
| p->conf.file = strdup(file); |
| p->conf.line = linenum; |
| p->last_change = now.tv_sec; |
| p->xprt = xprt_get(XPRT_RAW); |
| p->sock_init_arg = NULL; |
| HA_SPIN_INIT(&p->lock); |
| if (id) |
| p->id = strdup(id); |
| if (local) { |
| p->local = 1; |
| peers->local = p; |
| } |
| |
| return p; |
| } |
| |
| /* |
| * Parse a line in a <listen>, <frontend> or <backend> section. |
| * Returns the error code, 0 if OK, or any combination of : |
| * - ERR_ABORT: must abort ASAP |
| * - ERR_FATAL: we can continue parsing but not start the service |
| * - ERR_WARN: a warning has been emitted |
| * - ERR_ALERT: an alert has been emitted |
| * Only the two first ones can stop processing, the two others are just |
| * indicators. |
| */ |
| int cfg_parse_peers(const char *file, int linenum, char **args, int kwm) |
| { |
| static struct peers *curpeers = NULL; |
| struct peer *newpeer = NULL; |
| const char *err; |
| struct bind_conf *bind_conf; |
| struct listener *l; |
| int err_code = 0; |
| char *errmsg = NULL; |
| static int bind_line, peer_line; |
| |
| if (strcmp(args[0], "bind") == 0 || strcmp(args[0], "default-bind") == 0) { |
| int cur_arg; |
| static int kws_dumped; |
| struct bind_conf *bind_conf; |
| struct bind_kw *kw; |
| |
| cur_arg = 1; |
| |
| if (init_peers_frontend(file, linenum, NULL, curpeers) != 0) { |
| err_code |= ERR_ALERT | ERR_ABORT; |
| goto out; |
| } |
| |
| bind_conf = bind_conf_uniq_alloc(curpeers->peers_fe, file, linenum, |
| NULL, xprt_get(XPRT_RAW)); |
| if (*args[0] == 'b') { |
| struct listener *l; |
| |
| if (peer_line) { |
| ha_alert("parsing [%s:%d] : mixing \"peer\" and \"bind\" line is forbidden\n", file, linenum); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| |
| if (!str2listener(args[1], curpeers->peers_fe, bind_conf, file, linenum, &errmsg)) { |
| if (errmsg && *errmsg) { |
| indent_msg(&errmsg, 2); |
| ha_alert("parsing [%s:%d] : '%s %s' : %s\n", file, linenum, args[0], args[1], errmsg); |
| } |
| else |
| ha_alert("parsing [%s:%d] : '%s %s' : error encountered while parsing listening address %s.\n", |
| file, linenum, args[0], args[1], args[2]); |
| err_code |= ERR_FATAL; |
| goto out; |
| } |
| l = LIST_ELEM(bind_conf->listeners.n, typeof(l), by_bind); |
| l->maxaccept = 1; |
| l->accept = session_accept_fd; |
| l->analysers |= curpeers->peers_fe->fe_req_ana; |
| l->default_target = curpeers->peers_fe->default_target; |
| l->options |= LI_O_UNLIMITED; /* don't make the peers subject to global limits */ |
| global.maxsock++; /* for the listening socket */ |
| |
| bind_line = 1; |
| if (cfg_peers->local) { |
| newpeer = cfg_peers->local; |
| } |
| else { |
| /* This peer is local. |
| * Note that we do not set the peer ID. This latter is initialized |
| * when parsing "peer" or "server" line. |
| */ |
| newpeer = cfg_peers_add_peer(curpeers, file, linenum, NULL, 1); |
| if (!newpeer) { |
| err_code |= ERR_ALERT | ERR_ABORT; |
| goto out; |
| } |
| } |
| newpeer->addr = l->rx.addr; |
| newpeer->proto = protocol_by_family(newpeer->addr.ss_family); |
| cur_arg++; |
| } |
| |
| while (*args[cur_arg] && (kw = bind_find_kw(args[cur_arg]))) { |
| int ret; |
| |
| ret = kw->parse(args, cur_arg, curpeers->peers_fe, bind_conf, &errmsg); |
| err_code |= ret; |
| if (ret) { |
| if (errmsg && *errmsg) { |
| indent_msg(&errmsg, 2); |
| ha_alert("parsing [%s:%d] : %s\n", file, linenum, errmsg); |
| } |
| else |
| ha_alert("parsing [%s:%d]: error encountered while processing '%s'\n", |
| file, linenum, args[cur_arg]); |
| if (ret & ERR_FATAL) |
| goto out; |
| } |
| cur_arg += 1 + kw->skip; |
| } |
| if (*args[cur_arg] != 0) { |
| char *kws = NULL; |
| |
| if (!kws_dumped) { |
| kws_dumped = 1; |
| bind_dump_kws(&kws); |
| indent_msg(&kws, 4); |
| } |
| ha_alert("parsing [%s:%d] : unknown keyword '%s' in '%s' section.%s%s\n", |
| file, linenum, args[cur_arg], cursection, |
| kws ? " Registered keywords :" : "", kws ? kws: ""); |
| free(kws); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| } |
| else if (strcmp(args[0], "default-server") == 0) { |
| if (init_peers_frontend(file, -1, NULL, curpeers) != 0) { |
| err_code |= ERR_ALERT | ERR_ABORT; |
| goto out; |
| } |
| err_code |= parse_server(file, linenum, args, curpeers->peers_fe, NULL, 0, 1, 1); |
| } |
| else if (strcmp(args[0], "log") == 0) { |
| if (init_peers_frontend(file, linenum, NULL, curpeers) != 0) { |
| err_code |= ERR_ALERT | ERR_ABORT; |
| goto out; |
| } |
| if (!parse_logsrv(args, &curpeers->peers_fe->logsrvs, (kwm == KWM_NO), &errmsg)) { |
| ha_alert("parsing [%s:%d] : %s : %s\n", file, linenum, args[0], errmsg); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| } |
| else if (strcmp(args[0], "peers") == 0) { /* new peers section */ |
| /* Initialize these static variables when entering a new "peers" section*/ |
| bind_line = peer_line = 0; |
| if (!*args[1]) { |
| ha_alert("parsing [%s:%d] : missing name for peers section.\n", file, linenum); |
| err_code |= ERR_ALERT | ERR_ABORT; |
| goto out; |
| } |
| |
| if (alertif_too_many_args(1, file, linenum, args, &err_code)) |
| goto out; |
| |
| err = invalid_char(args[1]); |
| if (err) { |
| ha_alert("parsing [%s:%d] : character '%c' is not permitted in '%s' name '%s'.\n", |
| file, linenum, *err, args[0], args[1]); |
| err_code |= ERR_ALERT | ERR_ABORT; |
| goto out; |
| } |
| |
| for (curpeers = cfg_peers; curpeers != NULL; curpeers = curpeers->next) { |
| /* |
| * If there are two proxies with the same name only following |
| * combinations are allowed: |
| */ |
| if (strcmp(curpeers->id, args[1]) == 0) { |
| ha_alert("Parsing [%s:%d]: peers section '%s' has the same name as another peers section declared at %s:%d.\n", |
| file, linenum, args[1], curpeers->conf.file, curpeers->conf.line); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| } |
| } |
| |
| if ((curpeers = calloc(1, sizeof(*curpeers))) == NULL) { |
| ha_alert("parsing [%s:%d] : out of memory.\n", file, linenum); |
| err_code |= ERR_ALERT | ERR_ABORT; |
| goto out; |
| } |
| |
| curpeers->next = cfg_peers; |
| cfg_peers = curpeers; |
| curpeers->conf.file = strdup(file); |
| curpeers->conf.line = linenum; |
| curpeers->last_change = now.tv_sec; |
| curpeers->id = strdup(args[1]); |
| curpeers->state = PR_STNEW; |
| } |
| else if (strcmp(args[0], "peer") == 0 || |
| strcmp(args[0], "server") == 0) { /* peer or server definition */ |
| int local_peer, peer; |
| |
| peer = *args[0] == 'p'; |
| local_peer = !strcmp(args[1], localpeer); |
| /* The local peer may have already partially been parsed on a "bind" line. */ |
| if (*args[0] == 'p') { |
| if (bind_line) { |
| ha_alert("parsing [%s:%d] : mixing \"peer\" and \"bind\" line is forbidden\n", file, linenum); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| peer_line = 1; |
| } |
| if (cfg_peers->local && !cfg_peers->local->id && local_peer) { |
| /* The local peer has already been initialized on a "bind" line. |
| * Let's use it and store its ID. |
| */ |
| newpeer = cfg_peers->local; |
| newpeer->id = strdup(localpeer); |
| } |
| else { |
| if (local_peer && cfg_peers->local) { |
| ha_alert("parsing [%s:%d] : '%s %s' : local peer name already referenced at %s:%d. %s\n", |
| file, linenum, args[0], args[1], |
| curpeers->peers_fe->conf.file, curpeers->peers_fe->conf.line, cfg_peers->local->id); |
| err_code |= ERR_FATAL; |
| goto out; |
| } |
| newpeer = cfg_peers_add_peer(curpeers, file, linenum, args[1], local_peer); |
| if (!newpeer) { |
| err_code |= ERR_ALERT | ERR_ABORT; |
| goto out; |
| } |
| } |
| |
| /* Line number and peer ID are updated only if this peer is the local one. */ |
| if (init_peers_frontend(file, |
| newpeer->local ? linenum: -1, |
| newpeer->local ? newpeer->id : NULL, |
| curpeers) != 0) { |
| err_code |= ERR_ALERT | ERR_ABORT; |
| goto out; |
| } |
| |
| /* This initializes curpeer->peers->peers_fe->srv. |
| * The server address is parsed only if we are parsing a "peer" line, |
| * or if we are parsing a "server" line and the current peer is not the local one. |
| */ |
| err_code |= parse_server(file, linenum, args, curpeers->peers_fe, NULL, peer || !local_peer, 1, 1); |
| if (!curpeers->peers_fe->srv) { |
| /* Remove the newly allocated peer. */ |
| if (newpeer != curpeers->local) { |
| struct peer *p; |
| |
| p = curpeers->remote; |
| curpeers->remote = curpeers->remote->next; |
| free(p->id); |
| free(p); |
| } |
| goto out; |
| } |
| |
| /* If the peer address has just been parsed, let's copy it to <newpeer> |
| * and initializes ->proto. |
| */ |
| if (peer || !local_peer) { |
| newpeer->addr = curpeers->peers_fe->srv->addr; |
| newpeer->proto = protocol_by_family(newpeer->addr.ss_family); |
| } |
| |
| newpeer->xprt = xprt_get(XPRT_RAW); |
| newpeer->sock_init_arg = NULL; |
| HA_SPIN_INIT(&newpeer->lock); |
| |
| newpeer->srv = curpeers->peers_fe->srv; |
| if (!newpeer->local) |
| goto out; |
| |
| /* The lines above are reserved to "peer" lines. */ |
| if (*args[0] == 's') |
| goto out; |
| |
| bind_conf = bind_conf_uniq_alloc(curpeers->peers_fe, file, linenum, args[2], xprt_get(XPRT_RAW)); |
| |
| if (!str2listener(args[2], curpeers->peers_fe, bind_conf, file, linenum, &errmsg)) { |
| if (errmsg && *errmsg) { |
| indent_msg(&errmsg, 2); |
| ha_alert("parsing [%s:%d] : '%s %s' : %s\n", file, linenum, args[0], args[1], errmsg); |
| } |
| else |
| ha_alert("parsing [%s:%d] : '%s %s' : error encountered while parsing listening address %s.\n", |
| file, linenum, args[0], args[1], args[2]); |
| err_code |= ERR_FATAL; |
| goto out; |
| } |
| |
| l = LIST_ELEM(bind_conf->listeners.n, typeof(l), by_bind); |
| l->maxaccept = 1; |
| l->accept = session_accept_fd; |
| l->analysers |= curpeers->peers_fe->fe_req_ana; |
| l->default_target = curpeers->peers_fe->default_target; |
| l->options |= LI_O_UNLIMITED; /* don't make the peers subject to global limits */ |
| global.maxsock++; /* for the listening socket */ |
| } |
| else if (!strcmp(args[0], "table")) { |
| struct stktable *t, *other; |
| char *id; |
| size_t prefix_len; |
| |
| /* Line number and peer ID are updated only if this peer is the local one. */ |
| if (init_peers_frontend(file, -1, NULL, curpeers) != 0) { |
| err_code |= ERR_ALERT | ERR_ABORT; |
| goto out; |
| } |
| |
| other = stktable_find_by_name(args[1]); |
| if (other) { |
| ha_alert("parsing [%s:%d] : stick-table name '%s' conflicts with table declared in %s '%s' at %s:%d.\n", |
| file, linenum, args[1], |
| other->proxy ? proxy_cap_str(other->proxy->cap) : "peers", |
| other->proxy ? other->id : other->peers.p->id, |
| other->conf.file, other->conf.line); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| |
| /* Build the stick-table name, concatenating the "peers" section name |
| * followed by a '/' character and the table name argument. |
| */ |
| chunk_reset(&trash); |
| if (!chunk_strcpy(&trash, curpeers->id)) { |
| ha_alert("parsing [%s:%d]: '%s %s' : stick-table name too long.\n", |
| file, linenum, args[0], args[1]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| |
| prefix_len = trash.data; |
| if (!chunk_memcat(&trash, "/", 1) || !chunk_strcat(&trash, args[1])) { |
| ha_alert("parsing [%s:%d]: '%s %s' : stick-table name too long.\n", |
| file, linenum, args[0], args[1]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| |
| t = calloc(1, sizeof *t); |
| id = strdup(trash.area); |
| if (!t || !id) { |
| ha_alert("parsing [%s:%d]: '%s %s' : memory allocation failed\n", |
| file, linenum, args[0], args[1]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| |
| err_code |= parse_stick_table(file, linenum, args, t, id, id + prefix_len, curpeers); |
| if (err_code & ERR_FATAL) |
| goto out; |
| |
| stktable_store_name(t); |
| t->next = stktables_list; |
| stktables_list = t; |
| } |
| else if (!strcmp(args[0], "disabled")) { /* disables this peers section */ |
| curpeers->state = PR_STSTOPPED; |
| } |
| else if (!strcmp(args[0], "enabled")) { /* enables this peers section (used to revert a disabled default) */ |
| curpeers->state = PR_STNEW; |
| } |
| else if (*args[0] != 0) { |
| ha_alert("parsing [%s:%d] : unknown keyword '%s' in '%s' section\n", file, linenum, args[0], cursection); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| |
| out: |
| free(errmsg); |
| return err_code; |
| } |
| |
| /* |
| * Parse a <resolvers> section. |
| * Returns the error code, 0 if OK, or any combination of : |
| * - ERR_ABORT: must abort ASAP |
| * - ERR_FATAL: we can continue parsing but not start the service |
| * - ERR_WARN: a warning has been emitted |
| * - ERR_ALERT: an alert has been emitted |
| * Only the two first ones can stop processing, the two others are just |
| * indicators. |
| */ |
| int cfg_parse_resolvers(const char *file, int linenum, char **args, int kwm) |
| { |
| static struct dns_resolvers *curr_resolvers = NULL; |
| struct dns_nameserver *newnameserver = NULL; |
| const char *err; |
| int err_code = 0; |
| char *errmsg = NULL; |
| |
| if (strcmp(args[0], "resolvers") == 0) { /* new resolvers section */ |
| if (!*args[1]) { |
| ha_alert("parsing [%s:%d] : missing name for resolvers section.\n", file, linenum); |
| err_code |= ERR_ALERT | ERR_ABORT; |
| goto out; |
| } |
| |
| err = invalid_char(args[1]); |
| if (err) { |
| ha_alert("parsing [%s:%d] : character '%c' is not permitted in '%s' name '%s'.\n", |
| file, linenum, *err, args[0], args[1]); |
| err_code |= ERR_ALERT | ERR_ABORT; |
| goto out; |
| } |
| |
| list_for_each_entry(curr_resolvers, &dns_resolvers, list) { |
| /* Error if two resolvers owns the same name */ |
| if (strcmp(curr_resolvers->id, args[1]) == 0) { |
| ha_alert("Parsing [%s:%d]: resolvers '%s' has same name as another resolvers (declared at %s:%d).\n", |
| file, linenum, args[1], curr_resolvers->conf.file, curr_resolvers->conf.line); |
| err_code |= ERR_ALERT | ERR_ABORT; |
| } |
| } |
| |
| if ((curr_resolvers = calloc(1, sizeof(*curr_resolvers))) == NULL) { |
| ha_alert("parsing [%s:%d] : out of memory.\n", file, linenum); |
| err_code |= ERR_ALERT | ERR_ABORT; |
| goto out; |
| } |
| |
| /* default values */ |
| LIST_ADDQ(&dns_resolvers, &curr_resolvers->list); |
| curr_resolvers->conf.file = strdup(file); |
| curr_resolvers->conf.line = linenum; |
| curr_resolvers->id = strdup(args[1]); |
| curr_resolvers->query_ids = EB_ROOT; |
| /* default maximum response size */ |
| curr_resolvers->accepted_payload_size = 512; |
| /* default hold period for nx, other, refuse and timeout is 30s */ |
| curr_resolvers->hold.nx = 30000; |
| curr_resolvers->hold.other = 30000; |
| curr_resolvers->hold.refused = 30000; |
| curr_resolvers->hold.timeout = 30000; |
| curr_resolvers->hold.obsolete = 0; |
| /* default hold period for valid is 10s */ |
| curr_resolvers->hold.valid = 10000; |
| curr_resolvers->timeout.resolve = 1000; |
| curr_resolvers->timeout.retry = 1000; |
| curr_resolvers->resolve_retries = 3; |
| curr_resolvers->nb_nameservers = 0; |
| LIST_INIT(&curr_resolvers->nameservers); |
| LIST_INIT(&curr_resolvers->resolutions.curr); |
| LIST_INIT(&curr_resolvers->resolutions.wait); |
| HA_SPIN_INIT(&curr_resolvers->lock); |
| } |
| else if (strcmp(args[0], "nameserver") == 0) { /* nameserver definition */ |
| struct sockaddr_storage *sk; |
| int port1, port2; |
| struct protocol *proto; |
| |
| if (!*args[2]) { |
| ha_alert("parsing [%s:%d] : '%s' expects <name> and <addr>[:<port>] as arguments.\n", |
| file, linenum, args[0]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| |
| err = invalid_char(args[1]); |
| if (err) { |
| ha_alert("parsing [%s:%d] : character '%c' is not permitted in server name '%s'.\n", |
| file, linenum, *err, args[1]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| |
| list_for_each_entry(newnameserver, &curr_resolvers->nameservers, list) { |
| /* Error if two resolvers owns the same name */ |
| if (strcmp(newnameserver->id, args[1]) == 0) { |
| ha_alert("Parsing [%s:%d]: nameserver '%s' has same name as another nameserver (declared at %s:%d).\n", |
| file, linenum, args[1], newnameserver->conf.file, newnameserver->conf.line); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| } |
| } |
| |
| if ((newnameserver = calloc(1, sizeof(*newnameserver))) == NULL) { |
| ha_alert("parsing [%s:%d] : out of memory.\n", file, linenum); |
| err_code |= ERR_ALERT | ERR_ABORT; |
| goto out; |
| } |
| |
| /* the nameservers are linked backward first */ |
| LIST_ADDQ(&curr_resolvers->nameservers, &newnameserver->list); |
| newnameserver->resolvers = curr_resolvers; |
| newnameserver->conf.file = strdup(file); |
| newnameserver->conf.line = linenum; |
| newnameserver->id = strdup(args[1]); |
| |
| sk = str2sa_range(args[2], NULL, &port1, &port2, &errmsg, NULL, NULL, PA_O_RESOLVE | PA_O_PORT_OK | PA_O_PORT_MAND); |
| if (!sk) { |
| ha_alert("parsing [%s:%d] : '%s %s' : %s\n", file, linenum, args[0], args[1], errmsg); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| |
| /* handle nicely the case where "udp@" is forced */ |
| if (sk->ss_family == AF_CUST_UDP4) |
| sk->ss_family = AF_INET; |
| else if (sk->ss_family == AF_CUST_UDP6) |
| sk->ss_family = AF_INET6; |
| |
| proto = protocol_by_family(sk->ss_family); |
| if (!proto) { |
| ha_alert("parsing [%s:%d] : '%s %s' : connect() not supported for this address family.\n", |
| file, linenum, args[0], args[1]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| |
| newnameserver->addr = *sk; |
| } |
| else if (strcmp(args[0], "parse-resolv-conf") == 0) { |
| const char *whitespace = "\r\n\t "; |
| char *resolv_line = NULL; |
| int resolv_linenum = 0; |
| FILE *f = NULL; |
| char *address = NULL; |
| struct sockaddr_storage *sk = NULL; |
| struct protocol *proto; |
| int duplicate_name = 0; |
| |
| if ((resolv_line = malloc(sizeof(*resolv_line) * LINESIZE)) == NULL) { |
| ha_alert("parsing [%s:%d] : out of memory.\n", |
| file, linenum); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto resolv_out; |
| } |
| |
| if ((f = fopen("/etc/resolv.conf", "r")) == NULL) { |
| ha_alert("parsing [%s:%d] : failed to open /etc/resolv.conf.\n", |
| file, linenum); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto resolv_out; |
| } |
| |
| sk = calloc(1, sizeof(*sk)); |
| if (sk == NULL) { |
| ha_alert("parsing [/etc/resolv.conf:%d] : out of memory.\n", |
| resolv_linenum); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto resolv_out; |
| } |
| |
| while (fgets(resolv_line, LINESIZE, f) != NULL) { |
| resolv_linenum++; |
| if (strncmp(resolv_line, "nameserver", 10) != 0) |
| continue; |
| |
| address = strtok(resolv_line + 10, whitespace); |
| if (address == resolv_line + 10) |
| continue; |
| |
| if (address == NULL) { |
| ha_warning("parsing [/etc/resolv.conf:%d] : nameserver line is missing address.\n", |
| resolv_linenum); |
| err_code |= ERR_WARN; |
| continue; |
| } |
| |
| duplicate_name = 0; |
| list_for_each_entry(newnameserver, &curr_resolvers->nameservers, list) { |
| if (strcmp(newnameserver->id, address) == 0) { |
| ha_warning("Parsing [/etc/resolv.conf:%d] : generated name for /etc/resolv.conf nameserver '%s' conflicts with another nameserver (declared at %s:%d), it appears to be a duplicate and will be excluded.\n", |
| resolv_linenum, address, newnameserver->conf.file, newnameserver->conf.line); |
| err_code |= ERR_WARN; |
| duplicate_name = 1; |
| } |
| } |
| |
| if (duplicate_name) |
| continue; |
| |
| memset(sk, 0, sizeof(*sk)); |
| if (!str2ip2(address, sk, 1)) { |
| ha_warning("parsing [/etc/resolv.conf:%d] : address '%s' could not be recognized, nameserver will be excluded.\n", |
| resolv_linenum, address); |
| err_code |= ERR_WARN; |
| continue; |
| } |
| |
| set_host_port(sk, 53); |
| |
| proto = protocol_by_family(sk->ss_family); |
| if (!proto || !proto->connect) { |
| ha_warning("parsing [/etc/resolv.conf:%d] : '%s' : connect() not supported for this address family.\n", |
| resolv_linenum, address); |
| err_code |= ERR_WARN; |
| continue; |
| } |
| |
| if ((newnameserver = calloc(1, sizeof(*newnameserver))) == NULL) { |
| ha_alert("parsing [/etc/resolv.conf:%d] : out of memory.\n", resolv_linenum); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto resolv_out; |
| } |
| |
| newnameserver->conf.file = strdup("/etc/resolv.conf"); |
| if (newnameserver->conf.file == NULL) { |
| ha_alert("parsing [/etc/resolv.conf:%d] : out of memory.\n", resolv_linenum); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto resolv_out; |
| } |
| |
| newnameserver->id = strdup(address); |
| if (newnameserver->id == NULL) { |
| ha_alert("parsing [/etc/resolv.conf:%d] : out of memory.\n", resolv_linenum); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto resolv_out; |
| } |
| |
| newnameserver->resolvers = curr_resolvers; |
| newnameserver->conf.line = resolv_linenum; |
| newnameserver->addr = *sk; |
| |
| LIST_ADDQ(&curr_resolvers->nameservers, &newnameserver->list); |
| } |
| |
| resolv_out: |
| free(sk); |
| free(resolv_line); |
| if (f != NULL) |
| fclose(f); |
| } |
| else if (strcmp(args[0], "hold") == 0) { /* hold periods */ |
| const char *res; |
| unsigned int time; |
| |
| if (!*args[2]) { |
| ha_alert("parsing [%s:%d] : '%s' expects an <event> and a <time> as arguments.\n", |
| file, linenum, args[0]); |
| ha_alert("<event> can be either 'valid', 'nx', 'refused', 'timeout', or 'other'\n"); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| res = parse_time_err(args[2], &time, TIME_UNIT_MS); |
| if (res == PARSE_TIME_OVER) { |
| ha_alert("parsing [%s:%d]: timer overflow in argument <%s> to <%s>, maximum value is 2147483647 ms (~24.8 days).\n", |
| file, linenum, args[1], args[0]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| else if (res == PARSE_TIME_UNDER) { |
| ha_alert("parsing [%s:%d]: timer underflow in argument <%s> to <%s>, minimum non-null value is 1 ms.\n", |
| file, linenum, args[1], args[0]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| else if (res) { |
| ha_alert("parsing [%s:%d]: unexpected character '%c' in argument to <%s>.\n", |
| file, linenum, *res, args[0]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| if (strcmp(args[1], "nx") == 0) |
| curr_resolvers->hold.nx = time; |
| else if (strcmp(args[1], "other") == 0) |
| curr_resolvers->hold.other = time; |
| else if (strcmp(args[1], "refused") == 0) |
| curr_resolvers->hold.refused = time; |
| else if (strcmp(args[1], "timeout") == 0) |
| curr_resolvers->hold.timeout = time; |
| else if (strcmp(args[1], "valid") == 0) |
| curr_resolvers->hold.valid = time; |
| else if (strcmp(args[1], "obsolete") == 0) |
| curr_resolvers->hold.obsolete = time; |
| else { |
| ha_alert("parsing [%s:%d] : '%s' unknown <event>: '%s', expects either 'nx', 'timeout', 'valid', 'obsolete' or 'other'.\n", |
| file, linenum, args[0], args[1]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| |
| } |
| else if (strcmp(args[0], "accepted_payload_size") == 0) { |
| int i = 0; |
| |
| if (!*args[1]) { |
| ha_alert("parsing [%s:%d] : '%s' expects <nb> as argument.\n", |
| file, linenum, args[0]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| |
| i = atoi(args[1]); |
| if (i < DNS_HEADER_SIZE || i > DNS_MAX_UDP_MESSAGE) { |
| ha_alert("parsing [%s:%d] : '%s' must be between %d and %d inclusive (was %s).\n", |
| file, linenum, args[0], DNS_HEADER_SIZE, DNS_MAX_UDP_MESSAGE, args[1]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| |
| curr_resolvers->accepted_payload_size = i; |
| } |
| else if (strcmp(args[0], "resolution_pool_size") == 0) { |
| ha_alert("parsing [%s:%d] : '%s' directive is not supported anymore (it never appeared in a stable release).\n", |
| file, linenum, args[0]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| else if (strcmp(args[0], "resolve_retries") == 0) { |
| if (!*args[1]) { |
| ha_alert("parsing [%s:%d] : '%s' expects <nb> as argument.\n", |
| file, linenum, args[0]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| curr_resolvers->resolve_retries = atoi(args[1]); |
| } |
| else if (strcmp(args[0], "timeout") == 0) { |
| if (!*args[1]) { |
| ha_alert("parsing [%s:%d] : '%s' expects 'retry' or 'resolve' and <time> as arguments.\n", |
| file, linenum, args[0]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| else if (strcmp(args[1], "retry") == 0 || |
| strcmp(args[1], "resolve") == 0) { |
| const char *res; |
| unsigned int tout; |
| |
| if (!*args[2]) { |
| ha_alert("parsing [%s:%d] : '%s %s' expects <time> as argument.\n", |
| file, linenum, args[0], args[1]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| res = parse_time_err(args[2], &tout, TIME_UNIT_MS); |
| if (res == PARSE_TIME_OVER) { |
| ha_alert("parsing [%s:%d]: timer overflow in argument <%s> to <%s %s>, maximum value is 2147483647 ms (~24.8 days).\n", |
| file, linenum, args[2], args[0], args[1]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| else if (res == PARSE_TIME_UNDER) { |
| ha_alert("parsing [%s:%d]: timer underflow in argument <%s> to <%s %s>, minimum non-null value is 1 ms.\n", |
| file, linenum, args[2], args[0], args[1]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| else if (res) { |
| ha_alert("parsing [%s:%d]: unexpected character '%c' in argument to <%s %s>.\n", |
| file, linenum, *res, args[0], args[1]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| if (args[1][2] == 't') |
| curr_resolvers->timeout.retry = tout; |
| else |
| curr_resolvers->timeout.resolve = tout; |
| } |
| else { |
| ha_alert("parsing [%s:%d] : '%s' expects 'retry' or 'resolve' and <time> as arguments got '%s'.\n", |
| file, linenum, args[0], args[1]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| } /* neither "nameserver" nor "resolvers" */ |
| else if (*args[0] != 0) { |
| ha_alert("parsing [%s:%d] : unknown keyword '%s' in '%s' section\n", file, linenum, args[0], cursection); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| |
| out: |
| free(errmsg); |
| return err_code; |
| } |
| |
| /* |
| * Parse a line in a <listen>, <frontend> or <backend> section. |
| * Returns the error code, 0 if OK, or any combination of : |
| * - ERR_ABORT: must abort ASAP |
| * - ERR_FATAL: we can continue parsing but not start the service |
| * - ERR_WARN: a warning has been emitted |
| * - ERR_ALERT: an alert has been emitted |
| * Only the two first ones can stop processing, the two others are just |
| * indicators. |
| */ |
| int cfg_parse_mailers(const char *file, int linenum, char **args, int kwm) |
| { |
| static struct mailers *curmailers = NULL; |
| struct mailer *newmailer = NULL; |
| const char *err; |
| int err_code = 0; |
| char *errmsg = NULL; |
| |
| if (strcmp(args[0], "mailers") == 0) { /* new mailers section */ |
| if (!*args[1]) { |
| ha_alert("parsing [%s:%d] : missing name for mailers section.\n", file, linenum); |
| err_code |= ERR_ALERT | ERR_ABORT; |
| goto out; |
| } |
| |
| err = invalid_char(args[1]); |
| if (err) { |
| ha_alert("parsing [%s:%d] : character '%c' is not permitted in '%s' name '%s'.\n", |
| file, linenum, *err, args[0], args[1]); |
| err_code |= ERR_ALERT | ERR_ABORT; |
| goto out; |
| } |
| |
| for (curmailers = mailers; curmailers != NULL; curmailers = curmailers->next) { |
| /* |
| * If there are two proxies with the same name only following |
| * combinations are allowed: |
| */ |
| if (strcmp(curmailers->id, args[1]) == 0) { |
| ha_alert("Parsing [%s:%d]: mailers section '%s' has the same name as another mailers section declared at %s:%d.\n", |
| file, linenum, args[1], curmailers->conf.file, curmailers->conf.line); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| } |
| } |
| |
| if ((curmailers = calloc(1, sizeof(*curmailers))) == NULL) { |
| ha_alert("parsing [%s:%d] : out of memory.\n", file, linenum); |
| err_code |= ERR_ALERT | ERR_ABORT; |
| goto out; |
| } |
| |
| curmailers->next = mailers; |
| mailers = curmailers; |
| curmailers->conf.file = strdup(file); |
| curmailers->conf.line = linenum; |
| curmailers->id = strdup(args[1]); |
| curmailers->timeout.mail = DEF_MAILALERTTIME;/* XXX: Would like to Skip to the next alert, if any, ASAP. |
| * But need enough time so that timeouts don't occur |
| * during tcp procssing. For now just us an arbitrary default. */ |
| } |
| else if (strcmp(args[0], "mailer") == 0) { /* mailer definition */ |
| struct sockaddr_storage *sk; |
| int port1, port2; |
| struct protocol *proto; |
| |
| if (!*args[2]) { |
| ha_alert("parsing [%s:%d] : '%s' expects <name> and <addr>[:<port>] as arguments.\n", |
| file, linenum, args[0]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| |
| err = invalid_char(args[1]); |
| if (err) { |
| ha_alert("parsing [%s:%d] : character '%c' is not permitted in server name '%s'.\n", |
| file, linenum, *err, args[1]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| |
| if ((newmailer = calloc(1, sizeof(*newmailer))) == NULL) { |
| ha_alert("parsing [%s:%d] : out of memory.\n", file, linenum); |
| err_code |= ERR_ALERT | ERR_ABORT; |
| goto out; |
| } |
| |
| /* the mailers are linked backwards first */ |
| curmailers->count++; |
| newmailer->next = curmailers->mailer_list; |
| curmailers->mailer_list = newmailer; |
| newmailer->mailers = curmailers; |
| newmailer->conf.file = strdup(file); |
| newmailer->conf.line = linenum; |
| |
| newmailer->id = strdup(args[1]); |
| |
| sk = str2sa_range(args[2], NULL, &port1, &port2, &errmsg, NULL, NULL, PA_O_RESOLVE | PA_O_PORT_OK | PA_O_PORT_MAND); |
| if (!sk) { |
| ha_alert("parsing [%s:%d] : '%s %s' : %s\n", file, linenum, args[0], args[1], errmsg); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| |
| proto = protocol_by_family(sk->ss_family); |
| if (!proto || !proto->connect || proto->sock_prot != IPPROTO_TCP) { |
| ha_alert("parsing [%s:%d] : '%s %s' : TCP not supported for this address family.\n", |
| file, linenum, args[0], args[1]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| |
| newmailer->addr = *sk; |
| newmailer->proto = proto; |
| newmailer->xprt = xprt_get(XPRT_RAW); |
| newmailer->sock_init_arg = NULL; |
| } |
| else if (strcmp(args[0], "timeout") == 0) { |
| if (!*args[1]) { |
| ha_alert("parsing [%s:%d] : '%s' expects 'mail' and <time> as arguments.\n", |
| file, linenum, args[0]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| else if (strcmp(args[1], "mail") == 0) { |
| const char *res; |
| unsigned int timeout_mail; |
| if (!*args[2]) { |
| ha_alert("parsing [%s:%d] : '%s %s' expects <time> as argument.\n", |
| file, linenum, args[0], args[1]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| res = parse_time_err(args[2], &timeout_mail, TIME_UNIT_MS); |
| if (res == PARSE_TIME_OVER) { |
| ha_alert("parsing [%s:%d]: timer overflow in argument <%s> to <%s %s>, maximum value is 2147483647 ms (~24.8 days).\n", |
| file, linenum, args[2], args[0], args[1]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| else if (res == PARSE_TIME_UNDER) { |
| ha_alert("parsing [%s:%d]: timer underflow in argument <%s> to <%s %s>, minimum non-null value is 1 ms.\n", |
| file, linenum, args[2], args[0], args[1]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| else if (res) { |
| ha_alert("parsing [%s:%d]: unexpected character '%c' in argument to <%s %s>.\n", |
| file, linenum, *res, args[0], args[1]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| curmailers->timeout.mail = timeout_mail; |
| } else { |
| ha_alert("parsing [%s:%d] : '%s' expects 'mail' and <time> as arguments got '%s'.\n", |
| file, linenum, args[0], args[1]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| } |
| else if (*args[0] != 0) { |
| ha_alert("parsing [%s:%d] : unknown keyword '%s' in '%s' section\n", file, linenum, args[0], cursection); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| |
| out: |
| free(errmsg); |
| return err_code; |
| } |
| |
| void free_email_alert(struct proxy *p) |
| { |
| free(p->email_alert.mailers.name); |
| p->email_alert.mailers.name = NULL; |
| free(p->email_alert.from); |
| p->email_alert.from = NULL; |
| free(p->email_alert.to); |
| p->email_alert.to = NULL; |
| free(p->email_alert.myhostname); |
| p->email_alert.myhostname = NULL; |
| } |
| |
| |
| int |
| cfg_parse_netns(const char *file, int linenum, char **args, int kwm) |
| { |
| #ifdef USE_NS |
| const char *err; |
| const char *item = args[0]; |
| |
| if (!strcmp(item, "namespace_list")) { |
| return 0; |
| } |
| else if (!strcmp(item, "namespace")) { |
| size_t idx = 1; |
| const char *current; |
| while (*(current = args[idx++])) { |
| err = invalid_char(current); |
| if (err) { |
| ha_alert("parsing [%s:%d]: character '%c' is not permitted in '%s' name '%s'.\n", |
| file, linenum, *err, item, current); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| |
| if (netns_store_lookup(current, strlen(current))) { |
| ha_alert("parsing [%s:%d]: Namespace '%s' is already added.\n", |
| file, linenum, current); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| if (!netns_store_insert(current)) { |
| ha_alert("parsing [%s:%d]: Cannot open namespace '%s'.\n", |
| file, linenum, current); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| } |
| } |
| |
| return 0; |
| #else |
| ha_alert("parsing [%s:%d]: namespace support is not compiled in.", |
| file, linenum); |
| return ERR_ALERT | ERR_FATAL; |
| #endif |
| } |
| |
| int |
| cfg_parse_users(const char *file, int linenum, char **args, int kwm) |
| { |
| |
| int err_code = 0; |
| const char *err; |
| |
| if (!strcmp(args[0], "userlist")) { /* new userlist */ |
| struct userlist *newul; |
| |
| if (!*args[1]) { |
| ha_alert("parsing [%s:%d]: '%s' expects <name> as arguments.\n", |
| file, linenum, args[0]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| if (alertif_too_many_args(1, file, linenum, args, &err_code)) |
| goto out; |
| |
| err = invalid_char(args[1]); |
| if (err) { |
| ha_alert("parsing [%s:%d]: character '%c' is not permitted in '%s' name '%s'.\n", |
| file, linenum, *err, args[0], args[1]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| |
| for (newul = userlist; newul; newul = newul->next) |
| if (!strcmp(newul->name, args[1])) { |
| ha_warning("parsing [%s:%d]: ignoring duplicated userlist '%s'.\n", |
| file, linenum, args[1]); |
| err_code |= ERR_WARN; |
| goto out; |
| } |
| |
| newul = calloc(1, sizeof(*newul)); |
| if (!newul) { |
| ha_alert("parsing [%s:%d]: out of memory.\n", file, linenum); |
| err_code |= ERR_ALERT | ERR_ABORT; |
| goto out; |
| } |
| |
| newul->name = strdup(args[1]); |
| if (!newul->name) { |
| ha_alert("parsing [%s:%d]: out of memory.\n", file, linenum); |
| err_code |= ERR_ALERT | ERR_ABORT; |
| free(newul); |
| goto out; |
| } |
| |
| newul->next = userlist; |
| userlist = newul; |
| |
| } else if (!strcmp(args[0], "group")) { /* new group */ |
| int cur_arg; |
| const char *err; |
| struct auth_groups *ag; |
| |
| if (!*args[1]) { |
| ha_alert("parsing [%s:%d]: '%s' expects <name> as arguments.\n", |
| file, linenum, args[0]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| |
| err = invalid_char(args[1]); |
| if (err) { |
| ha_alert("parsing [%s:%d]: character '%c' is not permitted in '%s' name '%s'.\n", |
| file, linenum, *err, args[0], args[1]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| |
| if (!userlist) |
| goto out; |
| |
| for (ag = userlist->groups; ag; ag = ag->next) |
| if (!strcmp(ag->name, args[1])) { |
| ha_warning("parsing [%s:%d]: ignoring duplicated group '%s' in userlist '%s'.\n", |
| file, linenum, args[1], userlist->name); |
| err_code |= ERR_ALERT; |
| goto out; |
| } |
| |
| ag = calloc(1, sizeof(*ag)); |
| if (!ag) { |
| ha_alert("parsing [%s:%d]: out of memory.\n", file, linenum); |
| err_code |= ERR_ALERT | ERR_ABORT; |
| goto out; |
| } |
| |
| ag->name = strdup(args[1]); |
| if (!ag->name) { |
| ha_alert("parsing [%s:%d]: out of memory.\n", file, linenum); |
| err_code |= ERR_ALERT | ERR_ABORT; |
| free(ag); |
| goto out; |
| } |
| |
| cur_arg = 2; |
| |
| while (*args[cur_arg]) { |
| if (!strcmp(args[cur_arg], "users")) { |
| ag->groupusers = strdup(args[cur_arg + 1]); |
| cur_arg += 2; |
| continue; |
| } else { |
| ha_alert("parsing [%s:%d]: '%s' only supports 'users' option.\n", |
| file, linenum, args[0]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| free(ag->groupusers); |
| free(ag->name); |
| free(ag); |
| goto out; |
| } |
| } |
| |
| ag->next = userlist->groups; |
| userlist->groups = ag; |
| |
| } else if (!strcmp(args[0], "user")) { /* new user */ |
| struct auth_users *newuser; |
| int cur_arg; |
| |
| if (!*args[1]) { |
| ha_alert("parsing [%s:%d]: '%s' expects <name> as arguments.\n", |
| file, linenum, args[0]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| if (!userlist) |
| goto out; |
| |
| for (newuser = userlist->users; newuser; newuser = newuser->next) |
| if (!strcmp(newuser->user, args[1])) { |
| ha_warning("parsing [%s:%d]: ignoring duplicated user '%s' in userlist '%s'.\n", |
| file, linenum, args[1], userlist->name); |
| err_code |= ERR_ALERT; |
| goto out; |
| } |
| |
| newuser = calloc(1, sizeof(*newuser)); |
| if (!newuser) { |
| ha_alert("parsing [%s:%d]: out of memory.\n", file, linenum); |
| err_code |= ERR_ALERT | ERR_ABORT; |
| goto out; |
| } |
| |
| newuser->user = strdup(args[1]); |
| |
| newuser->next = userlist->users; |
| userlist->users = newuser; |
| |
| cur_arg = 2; |
| |
| while (*args[cur_arg]) { |
| if (!strcmp(args[cur_arg], "password")) { |
| #ifdef USE_LIBCRYPT |
| if (!crypt("", args[cur_arg + 1])) { |
| ha_alert("parsing [%s:%d]: the encrypted password used for user '%s' is not supported by crypt(3).\n", |
| file, linenum, newuser->user); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| #else |
| ha_warning("parsing [%s:%d]: no crypt(3) support compiled, encrypted passwords will not work.\n", |
| file, linenum); |
| err_code |= ERR_ALERT; |
| #endif |
| newuser->pass = strdup(args[cur_arg + 1]); |
| cur_arg += 2; |
| continue; |
| } else if (!strcmp(args[cur_arg], "insecure-password")) { |
| newuser->pass = strdup(args[cur_arg + 1]); |
| newuser->flags |= AU_O_INSECURE; |
| cur_arg += 2; |
| continue; |
| } else if (!strcmp(args[cur_arg], "groups")) { |
| newuser->u.groups_names = strdup(args[cur_arg + 1]); |
| cur_arg += 2; |
| continue; |
| } else { |
| ha_alert("parsing [%s:%d]: '%s' only supports 'password', 'insecure-password' and 'groups' options.\n", |
| file, linenum, args[0]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| } |
| } else { |
| ha_alert("parsing [%s:%d]: unknown keyword '%s' in '%s' section\n", file, linenum, args[0], "users"); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| } |
| |
| out: |
| return err_code; |
| } |
| |
| int |
| cfg_parse_scope(const char *file, int linenum, char *line) |
| { |
| char *beg, *end, *scope = NULL; |
| int err_code = 0; |
| const char *err; |
| |
| beg = line + 1; |
| end = strchr(beg, ']'); |
| |
| /* Detect end of scope declaration */ |
| if (!end || end == beg) { |
| ha_alert("parsing [%s:%d] : empty scope name is forbidden.\n", |
| file, linenum); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| |
| /* Get scope name and check its validity */ |
| scope = my_strndup(beg, end-beg); |
| err = invalid_char(scope); |
| if (err) { |
| ha_alert("parsing [%s:%d] : character '%c' is not permitted in a scope name.\n", |
| file, linenum, *err); |
| err_code |= ERR_ALERT | ERR_ABORT; |
| goto out; |
| } |
| |
| /* Be sure to have a scope declaration alone on its line */ |
| line = end+1; |
| while (isspace((unsigned char)*line)) |
| line++; |
| if (*line && *line != '#' && *line != '\n' && *line != '\r') { |
| ha_alert("parsing [%s:%d] : character '%c' is not permitted after scope declaration.\n", |
| file, linenum, *line); |
| err_code |= ERR_ALERT | ERR_ABORT; |
| goto out; |
| } |
| |
| /* We have a valid scope declaration, save it */ |
| free(cfg_scope); |
| cfg_scope = scope; |
| scope = NULL; |
| |
| out: |
| free(scope); |
| return err_code; |
| } |
| |
| int |
| cfg_parse_track_sc_num(unsigned int *track_sc_num, |
| const char *arg, const char *end, char **errmsg) |
| { |
| const char *p; |
| unsigned int num; |
| |
| p = arg; |
| num = read_uint64(&arg, end); |
| |
| if (arg != end) { |
| memprintf(errmsg, "Wrong track-sc number '%s'", p); |
| return -1; |
| } |
| |
| if (num >= MAX_SESS_STKCTR) { |
| memprintf(errmsg, "%u track-sc number exceeding " |
| "%d (MAX_SESS_STKCTR-1) value", num, MAX_SESS_STKCTR - 1); |
| return -1; |
| } |
| |
| *track_sc_num = num; |
| return 0; |
| } |
| |
| /* |
| * This function reads and parses the configuration file given in the argument. |
| * Returns the error code, 0 if OK, or any combination of : |
| * - ERR_ABORT: must abort ASAP |
| * - ERR_FATAL: we can continue parsing but not start the service |
| * - ERR_WARN: a warning has been emitted |
| * - ERR_ALERT: an alert has been emitted |
| * Only the two first ones can stop processing, the two others are just |
| * indicators. |
| */ |
| int readcfgfile(const char *file) |
| { |
| char *thisline; |
| int linesize = LINESIZE; |
| FILE *f; |
| int linenum = 0; |
| int err_code = 0; |
| struct cfg_section *cs = NULL, *pcs = NULL; |
| struct cfg_section *ics; |
| int readbytes = 0; |
| char *outline = NULL; |
| size_t outlen = 0; |
| size_t outlinesize = 0; |
| int fatal = 0; |
| int missing_lf = -1; |
| |
| if ((thisline = malloc(sizeof(*thisline) * linesize)) == NULL) { |
| ha_alert("parsing [%s] : out of memory.\n", file); |
| return -1; |
| } |
| |
| if ((f=fopen(file,"r")) == NULL) { |
| free(thisline); |
| return -1; |
| } |
| |
| next_line: |
| while (fgets(thisline + readbytes, linesize - readbytes, f) != NULL) { |
| int arg, kwm = KWM_STD; |
| char *end; |
| char *args[MAX_LINE_ARGS + 1]; |
| char *line = thisline; |
| |
| if (missing_lf != -1) { |
| ha_alert("parsing [%s:%d]: Stray NUL character at position %d.\n", |
| file, linenum, (missing_lf + 1)); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| missing_lf = -1; |
| break; |
| } |
| |
| linenum++; |
| |
| if (fatal >= 50) { |
| ha_alert("parsing [%s:%d]: too many fatal errors (%d), stopping now.\n", file, linenum, fatal); |
| break; |
| } |
| |
| end = line + strlen(line); |
| |
| if (end-line == linesize-1 && *(end-1) != '\n') { |
| /* Check if we reached the limit and the last char is not \n. |
| * Watch out for the last line without the terminating '\n'! |
| */ |
| char *newline; |
| int newlinesize = linesize * 2; |
| |
| newline = realloc(thisline, sizeof(*thisline) * newlinesize); |
| if (newline == NULL) { |
| ha_alert("parsing [%s:%d]: line too long, cannot allocate memory.\n", |
| file, linenum); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| fatal++; |
| linenum--; |
| continue; |
| } |
| |
| readbytes = linesize - 1; |
| linesize = newlinesize; |
| thisline = newline; |
| linenum--; |
| continue; |
| } |
| |
| readbytes = 0; |
| |
| if (end > line && *(end-1) == '\n') { |
| /* kill trailing LF */ |
| *(end - 1) = 0; |
| } |
| else { |
| /* mark this line as truncated */ |
| missing_lf = end - line; |
| } |
| |
| /* skip leading spaces */ |
| while (isspace((unsigned char)*line)) |
| line++; |
| |
| if (*line == '[') {/* This is the beginning if a scope */ |
| err_code |= cfg_parse_scope(file, linenum, line); |
| goto next_line; |
| } |
| |
| while (1) { |
| uint32_t err; |
| char *errptr; |
| |
| arg = MAX_LINE_ARGS + 1; |
| outlen = outlinesize; |
| err = parse_line(line, outline, &outlen, args, &arg, |
| PARSE_OPT_ENV | PARSE_OPT_DQUOTE | PARSE_OPT_SQUOTE | |
| PARSE_OPT_BKSLASH | PARSE_OPT_SHARP, &errptr); |
| |
| if (err & PARSE_ERR_QUOTE) { |
| size_t newpos = sanitize_for_printing(line, errptr - line, 80); |
| |
| ha_alert("parsing [%s:%d]: unmatched quote at position %d:\n" |
| " %s\n %*s\n", file, linenum, (int)(errptr-thisline+1), line, (int)(newpos+1), "^"); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| fatal++; |
| goto next_line; |
| } |
| |
| if (err & PARSE_ERR_BRACE) { |
| size_t newpos = sanitize_for_printing(line, errptr - line, 80); |
| |
| ha_alert("parsing [%s:%d]: unmatched brace in environment variable name at position %d:\n" |
| " %s\n %*s\n", file, linenum, (int)(errptr-thisline+1), line, (int)(newpos+1), "^"); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| fatal++; |
| goto next_line; |
| } |
| |
| if (err & PARSE_ERR_VARNAME) { |
| size_t newpos = sanitize_for_printing(line, errptr - line, 80); |
| |
| ha_alert("parsing [%s:%d]: forbidden first char in environment variable name at position %d:\n" |
| " %s\n %*s\n", file, linenum, (int)(errptr-thisline+1), line, (int)(newpos+1), "^"); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| fatal++; |
| goto next_line; |
| } |
| |
| if (err & PARSE_ERR_HEX) { |
| size_t newpos = sanitize_for_printing(line, errptr - line, 80); |
| |
| ha_alert("parsing [%s:%d]: truncated or invalid hexadecimal sequence at position %d:\n" |
| " %s\n %*s\n", file, linenum, (int)(errptr-thisline+1), line, (int)(newpos+1), "^"); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| fatal++; |
| goto next_line; |
| } |
| |
| if (err & (PARSE_ERR_TOOLARGE|PARSE_ERR_OVERLAP)) { |
| outlinesize = (outlen + 1023) & -1024; |
| outline = realloc(outline, outlinesize); |
| if (outline == NULL) { |
| ha_alert("parsing [%s:%d]: line too long, cannot allocate memory.\n", |
| file, linenum); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| fatal++; |
| goto next_line; |
| } |
| /* try again */ |
| continue; |
| } |
| |
| if (err & PARSE_ERR_TOOMANY) { |
| /* only check this *after* being sure the output is allocated */ |
| ha_alert("parsing [%s:%d]: too many words, truncating after word %d, position %ld: <%s>.\n", |
| file, linenum, MAX_LINE_ARGS, (long)(args[MAX_LINE_ARGS-1] - outline + 1), args[MAX_LINE_ARGS-1]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| fatal++; |
| goto next_line; |
| } |
| |
| /* everything's OK */ |
| break; |
| } |
| |
| /* empty line */ |
| if (!**args) |
| continue; |
| |
| /* check for keyword modifiers "no" and "default" */ |
| if (!strcmp(args[0], "no")) { |
| char *tmp; |
| |
| kwm = KWM_NO; |
| tmp = args[0]; |
| for (arg=0; *args[arg+1]; arg++) |
| args[arg] = args[arg+1]; // shift args after inversion |
| *tmp = '\0'; // fix the next arg to \0 |
| args[arg] = tmp; |
| } |
| else if (!strcmp(args[0], "default")) { |
| kwm = KWM_DEF; |
| for (arg=0; *args[arg+1]; arg++) |
| args[arg] = args[arg+1]; // shift args after inversion |
| } |
| |
| if (kwm != KWM_STD && strcmp(args[0], "option") != 0 && |
| strcmp(args[0], "log") != 0 && strcmp(args[0], "busy-polling") != 0 && |
| strcmp(args[0], "set-dumpable") != 0 && strcmp(args[0], "strict-limits") != 0 && |
| strcmp(args[0], "insecure-fork-wanted") != 0) { |
| ha_alert("parsing [%s:%d]: negation/default currently " |
| "supported only for options, log, busy-polling, " |
| "set-dumpable, strict-limits, and insecure-fork-wanted.\n", file, linenum); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| fatal++; |
| } |
| |
| /* detect section start */ |
| list_for_each_entry(ics, §ions, list) { |
| if (strcmp(args[0], ics->section_name) == 0) { |
| cursection = ics->section_name; |
| pcs = cs; |
| cs = ics; |
| break; |
| } |
| } |
| |
| if (pcs && pcs->post_section_parser) { |
| int status; |
| |
| status = pcs->post_section_parser(); |
| err_code |= status; |
| if (status & ERR_FATAL) |
| fatal++; |
| |
| if (err_code & ERR_ABORT) |
| goto err; |
| } |
| pcs = NULL; |
| |
| if (!cs) { |
| ha_alert("parsing [%s:%d]: unknown keyword '%s' out of section.\n", file, linenum, args[0]); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| fatal++; |
| } else { |
| int status; |
| |
| status = cs->section_parser(file, linenum, args, kwm); |
| err_code |= status; |
| if (status & ERR_FATAL) |
| fatal++; |
| |
| if (err_code & ERR_ABORT) |
| goto err; |
| } |
| } |
| |
| if (missing_lf != -1) { |
| ha_alert("parsing [%s:%d]: Missing LF on last line, file might have been truncated at position %d.\n", |
| file, linenum, (missing_lf + 1)); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| } |
| |
| if (cs && cs->post_section_parser) |
| err_code |= cs->post_section_parser(); |
| |
| err: |
| free(cfg_scope); |
| cfg_scope = NULL; |
| cursection = NULL; |
| free(thisline); |
| free(outline); |
| fclose(f); |
| return err_code; |
| } |
| |
| /* This function propagates processes from frontend <from> to backend <to> so |
| * that it is always guaranteed that a backend pointed to by a frontend is |
| * bound to all of its processes. After that, if the target is a "listen" |
| * instance, the function recursively descends the target's own targets along |
| * default_backend and use_backend rules. Since the bits are |
| * checked first to ensure that <to> is already bound to all processes of |
| * <from>, there is no risk of looping and we ensure to follow the shortest |
| * path to the destination. |
| * |
| * It is possible to set <to> to NULL for the first call so that the function |
| * takes care of visiting the initial frontend in <from>. |
| * |
| * It is important to note that the function relies on the fact that all names |
| * have already been resolved. |
| */ |
| void propagate_processes(struct proxy *from, struct proxy *to) |
| { |
| struct switching_rule *rule; |
| |
| if (to) { |
| /* check whether we need to go down */ |
| if (from->bind_proc && |
| (from->bind_proc & to->bind_proc) == from->bind_proc) |
| return; |
| |
| if (!from->bind_proc && !to->bind_proc) |
| return; |
| |
| to->bind_proc = from->bind_proc ? |
| (to->bind_proc | from->bind_proc) : 0; |
| |
| /* now propagate down */ |
| from = to; |
| } |
| |
| if (!(from->cap & PR_CAP_FE)) |
| return; |
| |
| if (from->state == PR_STSTOPPED) |
| return; |
| |
| /* default_backend */ |
| if (from->defbe.be) |
| propagate_processes(from, from->defbe.be); |
| |
| /* use_backend */ |
| list_for_each_entry(rule, &from->switching_rules, list) { |
| if (rule->dynamic) |
| continue; |
| to = rule->be.backend; |
| propagate_processes(from, to); |
| } |
| } |
| |
| /* |
| * Returns the error code, 0 if OK, or any combination of : |
| * - ERR_ABORT: must abort ASAP |
| * - ERR_FATAL: we can continue parsing but not start the service |
| * - ERR_WARN: a warning has been emitted |
| * - ERR_ALERT: an alert has been emitted |
| * Only the two first ones can stop processing, the two others are just |
| * indicators. |
| */ |
| int check_config_validity() |
| { |
| int cfgerr = 0; |
| struct proxy *curproxy = NULL; |
| struct stktable *t; |
| struct server *newsrv = NULL; |
| int err_code = 0; |
| unsigned int next_pxid = 1; |
| struct bind_conf *bind_conf; |
| char *err; |
| struct cfg_postparser *postparser; |
| struct dns_resolvers *curr_resolvers = NULL; |
| |
| bind_conf = NULL; |
| /* |
| * Now, check for the integrity of all that we have collected. |
| */ |
| |
| /* will be needed further to delay some tasks */ |
| tv_update_date(0,1); |
| |
| if (!global.tune.max_http_hdr) |
| global.tune.max_http_hdr = MAX_HTTP_HDR; |
| |
| if (!global.tune.cookie_len) |
| global.tune.cookie_len = CAPTURE_LEN; |
| |
| if (!global.tune.requri_len) |
| global.tune.requri_len = REQURI_LEN; |
| |
| if (!global.nbthread) { |
| /* nbthread not set, thus automatic. In this case, and only if |
| * running on a single process, we enable the same number of |
| * threads as the number of CPUs the process is bound to. This |
| * allows to easily control the number of threads using taskset. |
| */ |
| global.nbthread = 1; |
| #if defined(USE_THREAD) |
| if (global.nbproc == 1) |
| global.nbthread = thread_cpus_enabled_at_boot; |
| all_threads_mask = nbits(global.nbthread); |
| #endif |
| } |
| |
| if (global.nbproc > 1 && global.nbthread > 1) { |
| ha_alert("config : cannot enable multiple processes if multiple threads are configured. Please use either nbproc or nbthread but not both.\n"); |
| err_code |= ERR_ALERT | ERR_FATAL; |
| goto out; |
| } |
| |
| pool_head_requri = create_pool("requri", global.tune.requri_len , MEM_F_SHARED); |
| |
| pool_head_capture = create_pool("capture", global.tune.cookie_len, MEM_F_SHARED); |
| |
| /* Post initialisation of the users and groups lists. */ |
| err_code = userlist_postinit(); |
| if (err_code != ERR_NONE) |
| goto out; |
| |
| /* first, we will invert the proxy list order */ |
| curproxy = NULL; |
| while (proxies_list) { |
| struct proxy *next; |
| |
| next = proxies_list->next; |
| proxies_list->next = curproxy; |
| curproxy = proxies_list; |
| if (!next) |
| break; |
| proxies_list = next; |
| } |
| |
| for (curproxy = proxies_list; curproxy; curproxy = curproxy->next) { |
| struct switching_rule *rule; |
| struct server_rule *srule; |
| struct sticking_rule *mrule; |
| struct act_rule *arule; |
| struct logsrv *tmplogsrv; |
| unsigned int next_id; |
| int nbproc; |
| |
| if (curproxy->uuid < 0) { |
| /* proxy ID not set, use automatic numbering with first |
| * spare entry starting with next_pxid. |
| */ |
| next_pxid = get_next_id(&used_proxy_id, next_pxid); |
| curproxy->conf.id.key = curproxy->uuid = next_pxid; |
| eb32_insert(&used_proxy_id, &curproxy->conf.id); |
| } |
| next_pxid++; |
| |
| |
| if (curproxy->state == PR_STSTOPPED) { |
| /* ensure we don't keep listeners uselessly bound */ |
| stop_proxy(curproxy); |
| if (curproxy->table) { |
| free((void *)curproxy->table->peers.name); |
| curproxy->table->peers.p = NULL; |
| } |
| continue; |
| } |
| |
| /* Check multi-process mode compatibility for the current proxy */ |
| |
| if (curproxy->bind_proc) { |
| /* an explicit bind-process was specified, let's check how many |
| * processes remain. |
| */ |
| nbproc = my_popcountl(curproxy->bind_proc); |
| |
| curproxy->bind_proc &= all_proc_mask; |
| if (!curproxy->bind_proc && nbproc == 1) { |
| ha_warning("Proxy '%s': the process specified on the 'bind-process' directive refers to a process number that is higher than global.nbproc. The proxy has been forced to run on process 1 only.\n", curproxy->id); |
| curproxy->bind_proc = 1; |
| } |
| else if (!curproxy->bind_proc && nbproc > 1) { |
| ha_warning("Proxy '%s': all processes specified on the 'bind-process' directive refer to numbers that are all higher than global.nbproc. The directive was ignored and the proxy will run on all processes.\n", curproxy->id); |
| curproxy->bind_proc = 0; |
| } |
| } |
| |
| /* check and reduce the bind-proc of each listener */ |
| list_for_each_entry(bind_conf, &curproxy->conf.bind, by_fe) { |
| unsigned long mask; |
| |
| /* HTTP frontends with "h2" as ALPN/NPN will work in |
| * HTTP/2 and absolutely require buffers 16kB or larger. |
| */ |
| #ifdef USE_OPENSSL |
| if (curproxy->mode == PR_MODE_HTTP && global.tune.bufsize < 16384) { |
| #ifdef OPENSSL_NPN_NEGOTIATED |
| /* check NPN */ |
| if (bind_conf->ssl_conf.npn_str && strstr(bind_conf->ssl_conf.npn_str, "\002h2")) { |
| ha_alert("config : HTTP frontend '%s' enables HTTP/2 via NPN at [%s:%d], so global.tune.bufsize must be at least 16384 bytes (%d now).\n", |
| curproxy->id, bind_conf->file, bind_conf->line, global.tune.bufsize); |
| cfgerr++; |
| } |
| #endif |
| #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation |
| /* check ALPN */ |
| if (bind_conf->ssl_conf.alpn_str && strstr(bind_conf->ssl_conf.alpn_str, "\002h2")) { |
| ha_alert("config : HTTP frontend '%s' enables HTTP/2 via ALPN at [%s:%d], so global.tune.bufsize must be at least 16384 bytes (%d now).\n", |
| curproxy->id, bind_conf->file, bind_conf->line, global.tune.bufsize); |
| cfgerr++; |
| } |
| #endif |
| } /* HTTP && bufsize < 16384 */ |
| #endif |
| |
| /* detect and address thread affinity inconsistencies */ |
| mask = thread_mask(bind_conf->settings.bind_thread); |
| if (!(mask & all_threads_mask)) { |
| unsigned long new_mask = 0; |
| |
| while (mask) { |
| new_mask |= mask & all_threads_mask; |
| mask >>= global.nbthread; |
| } |
| |
| bind_conf->settings.bind_thread = new_mask; |
| ha_warning("Proxy '%s': the thread range specified on the 'process' directive of 'bind %s' at [%s:%d] only refers to thread numbers out of the range defined by the global 'nbthread' directive. The thread numbers were remapped to existing threads instead (mask 0x%lx).\n", |
| curproxy->id, bind_conf->arg, bind_conf->file, bind_conf->line, new_mask); |
| } |
| |
| /* detect process and nbproc affinity inconsistencies */ |
| mask = proc_mask(bind_conf->settings.bind_proc) & proc_mask(curproxy->bind_proc); |
| if (!(mask & all_proc_mask)) { |
| mask = proc_mask(curproxy->bind_proc) & all_proc_mask; |
| nbproc = my_popcountl(bind_conf->settings.bind_proc); |
| bind_conf->settings.bind_proc = proc_mask(bind_conf->settings.bind_proc) & mask; |
| |
| if (!bind_conf->settings.bind_proc && nbproc == 1) { |
| ha_warning("Proxy '%s': the process number specified on the 'process' directive of 'bind %s' at [%s:%d] refers to a process not covered by the proxy. This has been fixed by forcing it to run on the proxy's first process only.\n", |
| curproxy->id, bind_conf->arg, bind_conf->file, bind_conf->line); |
| bind_conf->settings.bind_proc = mask & ~(mask - 1); |
| } |
| else if (!bind_conf->settings.bind_proc && nbproc > 1) { |
| ha_warning("Proxy '%s': the process range specified on the 'process' directive of 'bind %s' at [%s:%d] only refers to processes not covered by the proxy. The directive was ignored so that all of the proxy's processes are used.\n", |
| curproxy->id, bind_conf->arg, bind_conf->file, bind_conf->line); |
| bind_conf->settings.bind_proc = 0; |
| } |
| } |
| } |
| |
| switch (curproxy->mode) { |
| case PR_MODE_HEALTH: |
| cfgerr += proxy_cfg_ensure_no_http(curproxy); |
| if (!(curproxy->cap & PR_CAP_FE)) { |
| ha_alert("config : %s '%s' cannot be in health mode as it has no frontend capability.\n", |
| proxy_type_str(curproxy), curproxy->id); |
| cfgerr++; |
| } |
| |
| if (curproxy->srv != NULL) |
| ha_warning("config : servers will be ignored for %s '%s'.\n", |
| proxy_type_str(curproxy), curproxy->id); |
| break; |
| |
| case PR_MODE_TCP: |
| cfgerr += proxy_cfg_ensure_no_http(curproxy); |
| break; |
| |
| case PR_MODE_HTTP: |
| curproxy->http_needed = 1; |
| break; |
| |
| case PR_MODE_CLI: |
| cfgerr += proxy_cfg_ensure_no_http(curproxy); |
| break; |
| case PR_MODE_SYSLOG: |
| case PR_MODES: |
| /* should not happen, bug gcc warn missing switch statement */ |
| ha_alert("config : %s '%s' cannot use syslog mode for this proxy.\n", |
| proxy_type_str(curproxy), curproxy->id); |
| cfgerr++; |
| break; |
| } |
| |
| if (curproxy != global.stats_fe && (curproxy->cap & PR_CAP_FE) && LIST_ISEMPTY(&curproxy->conf.listeners)) { |
| ha_warning("config : %s '%s' has no 'bind' directive. Please declare it as a backend if this was intended.\n", |
| proxy_type_str(curproxy), curproxy->id); |
| err_code |= ERR_WARN; |
| } |
| |
| if ((curproxy->cap & PR_CAP_BE) && (curproxy->mode != PR_MODE_HEALTH)) { |
| if (curproxy->lbprm.algo & BE_LB_KIND) { |
| if (curproxy->options & PR_O_TRANSP) { |
| ha_alert("config : %s '%s' cannot use both transparent and balance mode.\n", |
| proxy_type_str(curproxy), curproxy->id); |
| cfgerr++; |
| } |
| #ifdef WE_DONT_SUPPORT_SERVERLESS_LISTENERS |
| else if (curproxy->srv == NULL) { |
| ha_alert("config : %s '%s' needs at least 1 server in balance mode.\n", |
| proxy_type_str(curproxy), curproxy->id); |
| cfgerr++; |
| } |
| #endif |
| else if (curproxy->options & PR_O_DISPATCH) { |
| ha_warning("config : dispatch address of %s '%s' will be ignored in balance mode.\n", |
| proxy_type_str(curproxy), curproxy->id); |
| err_code |= ERR_WARN; |
| } |
| } |
| else if (!(curproxy->options & (PR_O_TRANSP | PR_O_DISPATCH | PR_O_HTTP_PROXY))) { |
| /* If no LB algo is set in a backend, and we're not in |
| * transparent mode, dispatch mode nor proxy mode, we |
| * want to use balance roundrobin by default. |
| */ |
| curproxy->lbprm.algo &= ~BE_LB_ALGO; |
| curproxy->lbprm.algo |= BE_LB_ALGO_RR; |
| } |
| } |
| |
| if (curproxy->options & PR_O_DISPATCH) |
| curproxy->options &= ~(PR_O_TRANSP | PR_O_HTTP_PROXY); |
| else if (curproxy->options & PR_O_HTTP_PROXY) |
| curproxy->options &= ~(PR_O_DISPATCH | PR_O_TRANSP); |
| else if (curproxy->options & PR_O_TRANSP) |
| curproxy->options &= ~(PR_O_DISPATCH | PR_O_HTTP_PROXY); |
| |
| if ((curproxy->tcpcheck_rules.flags & TCPCHK_RULES_UNUSED_HTTP_RS)) { |
| ha_warning("config : %s '%s' uses http-check rules without 'option httpchk', so the rules are ignored.\n", |
| proxy_type_str(curproxy), curproxy->id); |
| err_code |= ERR_WARN; |
| } |
| |
| if ((curproxy->options2 & PR_O2_CHK_ANY) == PR_O2_TCPCHK_CHK && |
| (curproxy->tcpcheck_rules.flags & TCPCHK_RULES_PROTO_CHK) != TCPCHK_RULES_HTTP_CHK) { |
| if (curproxy->options & PR_O_DISABLE404) { |
| ha_warning("config : '%s' will be ignored for %s '%s' (requires 'option httpchk').\n", |
| "disable-on-404", proxy_type_str(curproxy), curproxy->id); |
| err_code |= ERR_WARN; |
| curproxy->options &= ~PR_O_DISABLE404; |
| } |
| if (curproxy->options2 & PR_O2_CHK_SNDST) { |
| ha_warning("config : '%s' will be ignored for %s '%s' (requires 'option httpchk').\n", |
| "send-state", proxy_type_str(curproxy), curproxy->id); |
| err_code |= ERR_WARN; |
| curproxy->options &= ~PR_O2_CHK_SNDST; |
| } |
| } |
| |
| if ((curproxy->options2 & PR_O2_CHK_ANY) == PR_O2_EXT_CHK) { |
| if (!global.external_check) { |
| ha_alert("Proxy '%s' : '%s' unable to find required 'global.external-check'.\n", |
| curproxy->id, "option external-check"); |
| cfgerr++; |
| } |
| if (!curproxy->check_command) { |
| ha_alert("Proxy '%s' : '%s' unable to find required 'external-check command'.\n", |
| curproxy->id, "option external-check"); |
| cfgerr++; |
| } |
| if (!(global.tune.options & GTUNE_INSECURE_FORK)) { |
| ha_warning("Proxy '%s' : 'insecure-fork-wanted' not enabled in the global section, '%s' will likely fail.\n", |
| curproxy->id, "option external-check"); |
| err_code |= ERR_WARN; |
| } |
| } |
| |
| if (curproxy->email_alert.set) { |
| if (!(curproxy->email_alert.mailers.name && curproxy->email_alert.from && curproxy->email_alert.to)) { |
| ha_warning("config : 'email-alert' will be ignored for %s '%s' (the presence any of " |
| "'email-alert from', 'email-alert level' 'email-alert mailers', " |
| "'email-alert myhostname', or 'email-alert to' " |
| "requires each of 'email-alert from', 'email-alert mailers' and 'email-alert to' " |
| "to be present).\n", |
| proxy_type_str(curproxy), curproxy->id); |
| err_code |= ERR_WARN; |
| free_email_alert(curproxy); |
| } |
| if (!curproxy->email_alert.myhostname) |
| curproxy->email_alert.myhostname = strdup(hostname); |
| } |
| |
| if (curproxy->check_command) { |
| int clear = 0; |
| if ((curproxy->options2 & PR_O2_CHK_ANY) != PR_O2_EXT_CHK) { |
| ha_warning("config : '%s' will be ignored for %s '%s' (requires 'option external-check').\n", |
| "external-check command", proxy_type_str(curproxy), curproxy->id); |
| err_code |= ERR_WARN; |
| clear = 1; |
| } |
| if (curproxy->check_command[0] != '/' && !curproxy->check_path) { |
| ha_alert("Proxy '%s': '%s' does not have a leading '/' and 'external-check path' is not set.\n", |
| curproxy->id, "external-check command"); |
| cfgerr++; |
| } |
| if (clear) { |
| free(curproxy->check_command); |
| curproxy->check_command = NULL; |
| } |
| } |
| |
| if (curproxy->check_path) { |
| if ((curproxy->options2 & PR_O2_CHK_ANY) != PR_O2_EXT_CHK) { |
| ha_warning("config : '%s' will be ignored for %s '%s' (requires 'option external-check').\n", |
| "external-check path", proxy_type_str(curproxy), curproxy->id); |
| err_code |= ERR_WARN; |
| free(curproxy->check_path); |
| curproxy->check_path = NULL; |
| } |
| } |
| |
| /* if a default backend was specified, let's find it */ |
| if (curproxy->defbe.name) { |
| struct proxy *target; |
| |
| target = proxy_be_by_name(curproxy->defbe.name); |
| if (!target) { |
| ha_alert("Proxy '%s': unable to find required default_backend: '%s'.\n", |
| curproxy->id, curproxy->defbe.name); |
| cfgerr++; |
| } else if (target == curproxy) { |
| ha_alert("Proxy '%s': loop detected for default_backend: '%s'.\n", |
| curproxy->id, curproxy->defbe.name); |
| cfgerr++; |
| } else if (target->mode != curproxy->mode && |
| !(curproxy->mode == PR_MODE_TCP && target->mode == PR_MODE_HTTP)) { |
| |
| ha_alert("%s %s '%s' (%s:%d) tries to use incompatible %s %s '%s' (%s:%d) as its default backend (see 'mode').\n", |
| proxy_mode_str(curproxy->mode), proxy_type_str(curproxy), curproxy->id, |
| curproxy->conf.file, curproxy->conf.line, |
| proxy_mode_str(target->mode), proxy_type_str(target), target->id, |
| target->conf.file, target->conf.line); |
| cfgerr++; |
| } else { |
| free(curproxy->defbe.name); |
| curproxy->defbe.be = target; |
| /* Emit a warning if this proxy also has some servers */ |
| if (curproxy->srv) { |
| ha_warning("In proxy '%s', the 'default_backend' rule always has precedence over the servers, which will never be used.\n", |
| curproxy->id); |
| err_code |= ERR_WARN; |
| } |
| } |
| } |
| |
| /* find the target proxy for 'use_backend' rules */ |
| list_for_each_entry(rule, &curproxy->switching_rules, list) { |
| struct proxy *target; |
| struct logformat_node *node; |
| char *pxname; |
| |
| /* Try to parse the string as a log format expression. If the result |
| * of the parsing is only one entry containing a simple string, then |
| * it's a standard string corresponding to a static rule, thus the |
| * parsing is cancelled and be.name is restored to be resolved. |
| */ |
| pxname = rule->be.name; |
| LIST_INIT(&rule->be.expr); |
| curproxy->conf.args.ctx = ARGC_UBK; |
| curproxy->conf.args.file = rule->file; |
| curproxy->conf.args.line = rule->line; |
| err = NULL; |
| if (!parse_logformat_string(pxname, curproxy, &rule->be.expr, 0, SMP_VAL_FE_HRQ_HDR, &err)) { |
| ha_alert("Parsing [%s:%d]: failed to parse use_backend rule '%s' : %s.\n", |
| rule->file, rule->line, pxname, err); |
| free(err); |
| cfgerr++; |
| continue; |
| } |
| node = LIST_NEXT(&rule->be.expr, struct logformat_node *, list); |
| |
| if (!LIST_ISEMPTY(&rule->be.expr)) { |
| if (node->type != LOG_FMT_TEXT || node->list.n != &rule->be.expr) { |
| rule->dynamic = 1; |
| free(pxname); |
| continue; |
| } |
| /* Only one element in the list, a simple string: free the expression and |
| * fall back to static rule |
| */ |
| LIST_DEL(&node->list); |
| free(node->arg); |
| free(node); |
| } |
| |
| rule->dynamic = 0; |
| rule->be.name = pxname; |
| |
| target = proxy_be_by_name(rule->be.name); |
| if (!target) { |
| ha_alert("Proxy '%s': unable to find required use_backend: '%s'.\n", |
| curproxy->id, rule->be.name); |
| cfgerr++; |
| } else if (target == curproxy) { |
| ha_alert("Proxy '%s': loop detected for use_backend: '%s'.\n", |
| curproxy->id, rule->be.name); |
| cfgerr++; |
| } else if (target->mode != curproxy->mode && |
| !(curproxy->mode == PR_MODE_TCP && target->mode == PR_MODE_HTTP)) { |
| |
| ha_alert("%s %s '%s' (%s:%d) tries to use incompatible %s %s '%s' (%s:%d) in a 'use_backend' rule (see 'mode').\n", |
| proxy_mode_str(curproxy->mode), proxy_type_str(curproxy), curproxy->id, |
| curproxy->conf.file, curproxy->conf.line, |
| proxy_mode_str(target->mode), proxy_type_str(target), target->id, |
| target->conf.file, target->conf.line); |
| cfgerr++; |
| } else { |
| free((void *)rule->be.name); |
| rule->be.backend = target; |
| } |
| } |
| |
| /* find the target server for 'use_server' rules */ |
| list_for_each_entry(srule, &curproxy->server_rules, list) { |
| struct server *target; |
| struct logformat_node *node; |
| char *server_name; |
| |
| /* We try to parse the string as a log format expression. If the result of the parsing |
| * is only one entry containing a single string, then it's a standard string corresponding |
| * to a static rule, thus the parsing is cancelled and we fall back to setting srv.ptr. |
| */ |
| server_name = srule->srv.name; |
| LIST_INIT(&srule->expr); |
| curproxy->conf.args.ctx = ARGC_USRV; |
| err = NULL; |
| if (!parse_logformat_string(server_name, curproxy, &srule->expr, 0, SMP_VAL_FE_HRQ_HDR, &err)) { |
| ha_alert("Parsing [%s:%d]; use-server rule failed to parse log-format '%s' : %s.\n", |
| srule->file, srule->line, server_name, err); |
| free(err); |
| cfgerr++; |
| continue; |
| } |
| node = LIST_NEXT(&srule->expr, struct logformat_node *, list); |
| |
| if (!LIST_ISEMPTY(&srule->expr)) { |
| if (node->type != LOG_FMT_TEXT || node->list.n != &srule->expr) { |
| srule->dynamic = 1; |
| free(server_name); |
| continue; |
| } |
| /* Only one element in the list, a simple string: free the expression and |
| * fall back to static rule |
| */ |
| LIST_DEL(&node->list); |
| free(node->arg); |
| free(node); |
| } |
| |
| srule->dynamic = 0; |
| srule->srv.name = server_name; |
| target = findserver(curproxy, srule->srv.name); |
| |
| if (!target) { |
| ha_alert("config : %s '%s' : unable to find server '%s' referenced in a 'use-server' rule.\n", |
| proxy_type_str(curproxy), curproxy->id, srule->srv.name); |
| cfgerr++; |
| continue; |
| } |
| free((void *)srule->srv.name); |
| srule->srv.ptr = target; |
| } |
| |
| /* find the target table for 'stick' rules */ |
| list_for_each_entry(mrule, &curproxy->sticking_rules, list) { |
| struct stktable *target; |
| |
| curproxy->be_req_ana |= AN_REQ_STICKING_RULES; |
| if (mrule->flags & STK_IS_STORE) |
| curproxy->be_rsp_ana |= AN_RES_STORE_RULES; |
| |
| if (mrule->table.name) |
| target = stktable_find_by_name(mrule->table.name); |
| else |
| target = curproxy->table; |
| |
| if (!target) { |
| ha_alert("Proxy '%s': unable to find stick-table '%s'.\n", |
| curproxy->id, mrule->table.name ? mrule->table.name : curproxy->id); |
| cfgerr++; |
| } |
| else if (!stktable_compatible_sample(mrule->expr, target->type)) { |
| ha_alert("Proxy '%s': type of fetch not usable with type of stick-table '%s'.\n", |
| curproxy->id, mrule->table.name ? mrule->table.name : curproxy->id); |
| cfgerr++; |
| } |
| else if (target->proxy && curproxy->bind_proc & ~target->proxy->bind_proc) { |
| ha_alert("Proxy '%s': stick-table '%s' referenced 'stick-store' rule not present on all processes covered by proxy '%s'.\n", |
| curproxy->id, target->id, curproxy->id); |
| cfgerr++; |
| } |
| else { |
| free((void *)mrule->table.name); |
| mrule->table.t = target; |
| stktable_alloc_data_type(target, STKTABLE_DT_SERVER_ID, NULL); |
| stktable_alloc_data_type(target, STKTABLE_DT_SERVER_NAME, NULL); |
| if (!in_proxies_list(target->proxies_list, curproxy)) { |
| curproxy->next_stkt_ref = target->proxies_list; |
| target->proxies_list = curproxy; |
| } |
| } |
| } |
| |
| /* find the target table for 'store response' rules */ |
| list_for_each_entry(mrule, &curproxy->storersp_rules, list) { |
| struct stktable *target; |
| |
| curproxy->be_rsp_ana |= AN_RES_STORE_RULES; |
| |
| if (mrule->table.name) |
| target = stktable_find_by_name(mrule->table.name); |
| else |
| target = curproxy->table; |
| |
| if (!target) { |
| ha_alert("Proxy '%s': unable to find store table '%s'.\n", |
| curproxy->id, mrule->table.name ? mrule->table.name : curproxy->id); |
| cfgerr++; |
| } |
| else if (!stktable_compatible_sample(mrule->expr, target->type)) { |
| ha_alert("Proxy '%s': type of fetch not usable with type of stick-table '%s'.\n", |
| curproxy->id, mrule->table.name ? mrule->table.name : curproxy->id); |
| cfgerr++; |
| } |
| else if (target->proxy && (curproxy->bind_proc & ~target->proxy->bind_proc)) { |
| ha_alert("Proxy '%s': stick-table '%s' referenced 'stick-store' rule not present on all processes covered by proxy '%s'.\n", |
| curproxy->id, target->id, curproxy->id); |
| cfgerr++; |
| } |
| else { |
| free((void *)mrule->table.name); |
| mrule->table.t = target; |
| stktable_alloc_data_type(target, STKTABLE_DT_SERVER_ID, NULL); |
| stktable_alloc_data_type(target, STKTABLE_DT_SERVER_NAME, NULL); |
| if (!in_proxies_list(target->proxies_list, curproxy)) { |
| curproxy->next_stkt_ref = target->proxies_list; |
| target->proxies_list = curproxy; |
| } |
| } |
| } |
| |
| /* check validity for 'tcp-request' layer 4 rules */ |
| list_for_each_entry(arule, &curproxy->tcp_req.l4_rules, list) { |
| err = NULL; |
| if (arule->check_ptr && !arule->check_ptr(arule, curproxy, &err)) { |
| ha_alert("Proxy '%s': %s.\n", curproxy->id, err); |
| free(err); |
| cfgerr++; |
| } |
| } |
| |
| /* check validity for 'tcp-request' layer 5 rules */ |
| list_for_each_entry(arule, &curproxy->tcp_req.l5_rules, list) { |
| err = NULL; |
| if (arule->check_ptr && !arule->check_ptr(arule, curproxy, &err)) { |
| ha_alert("Proxy '%s': %s.\n", curproxy->id, err); |
| free(err); |
| cfgerr++; |
| } |
| } |
| |
| /* check validity for 'tcp-request' layer 6 rules */ |
| list_for_each_entry(arule, &curproxy->tcp_req.inspect_rules, list) { |
| err = NULL; |
| if (arule->check_ptr && !arule->check_ptr(arule, curproxy, &err)) { |
| ha_alert("Proxy '%s': %s.\n", curproxy->id, err); |
| free(err); |
| cfgerr++; |
| } |
| } |
| |
| /* check validity for 'http-request' layer 7 rules */ |
| list_for_each_entry(arule, &curproxy->http_req_rules, list) { |
| err = NULL; |
| if (arule->check_ptr && !arule->check_ptr(arule, curproxy, &err)) { |
| ha_alert("Proxy '%s': %s.\n", curproxy->id, err); |
| free(err); |
| cfgerr++; |
| } |
| } |
| |
| /* check validity for 'http-response' layer 7 rules */ |
| list_for_each_entry(arule, &curproxy->http_res_rules, list) { |
| err = NULL; |
| if (arule->check_ptr && !arule->check_ptr(arule, curproxy, &err)) { |
| ha_alert("Proxy '%s': %s.\n", curproxy->id, err); |
| free(err); |
| cfgerr++; |
| } |
| } |
| |
| /* check validity for 'http-after-response' layer 7 rules */ |
| list_for_each_entry(arule, &curproxy->http_after_res_rules, list) { |
| err = NULL; |
| if (arule->check_ptr && !arule->check_ptr(arule, curproxy, &err)) { |
| ha_alert("Proxy '%s': %s.\n", curproxy->id, err); |
| free(err); |
| cfgerr++; |
| } |
| } |
| |
| if (curproxy->table && curproxy->table->peers.name) { |
| struct peers *curpeers; |
| |
| for (curpeers = cfg_peers; curpeers; curpeers = curpeers->next) { |
| if (strcmp(curpeers->id, curproxy->table->peers.name) == 0) { |
| free((void *)curproxy->table->peers.name); |
| curproxy->table->peers.p = curpeers; |
| break; |
| } |
| } |
| |
| if (!curpeers) { |
| ha_alert("Proxy '%s': unable to find sync peers '%s'.\n", |
| curproxy->id, curproxy->table->peers.name); |
| free((void *)curproxy->table->peers.name); |
| curproxy->table->peers.p = NULL; |
| cfgerr++; |
| } |
| else if (curpeers->state == PR_STSTOPPED) { |
| /* silently disable this peers section */ |
| curproxy->table->peers.p = NULL; |
| } |
| else if (!curpeers->peers_fe) { |
| ha_alert("Proxy '%s': unable to find local peer '%s' in peers section '%s'.\n", |
| curproxy->id, localpeer, curpeers->id); |
| curproxy->table->peers.p = NULL; |
| cfgerr++; |
| } |
| } |
| |
| |
| if (curproxy->email_alert.mailers.name) { |
| struct mailers *curmailers = mailers; |
| |
| for (curmailers = mailers; curmailers; curmailers = curmailers->next) { |
| if (!strcmp(curmailers->id, curproxy->email_alert.mailers.name)) |
| break; |
| } |
| if (!curmailers) { |
| ha_alert("Proxy '%s': unable to find mailers '%s'.\n", |
| curproxy->id, curproxy->email_alert.mailers.name); |
| free_email_alert(curproxy); |
| cfgerr++; |
| } |
| else { |
| err = NULL; |
| if (init_email_alert(curmailers, curproxy, &err)) { |
| ha_alert("Proxy '%s': %s.\n", curproxy->id, err); |
| free(err); |
| cfgerr++; |
| } |
| } |
| } |
| |
| if (curproxy->uri_auth && curproxy->uri_auth != defproxy.uri_auth && |
| !LIST_ISEMPTY(&curproxy->uri_auth->http_req_rules) && |
| (curproxy->uri_auth->userlist || curproxy->uri_auth->auth_realm )) { |
| ha_alert("%s '%s': stats 'auth'/'realm' and 'http-request' can't be used at the same time.\n", |
| "proxy", curproxy->id); |
| cfgerr++; |
| goto out_uri_auth_compat; |
| } |
| |
| if (curproxy->uri_auth && curproxy->uri_auth->userlist && |
| (curproxy->uri_auth != defproxy.uri_auth || |
| LIST_ISEMPTY(&curproxy->uri_auth->http_req_rules))) { |
| const char *uri_auth_compat_req[10]; |
| struct act_rule *rule; |
| int i = 0; |
| /* build the ACL condition from scratch. We're relying on anonymous ACLs for that */ |
| uri_auth_compat_req[i++] = "auth"; |
| |
| if (curproxy->uri_auth->auth_realm) { |
| uri_auth_compat_req[i++] = "realm"; |
| uri_auth_compat_req[i++] = curproxy->uri_auth->auth_realm; |
| } |
| |
| uri_auth_compat_req[i++] = "unless"; |
| uri_auth_compat_req[i++] = "{"; |
| uri_auth_compat_req[i++] = "http_auth(.internal-stats-userlist)"; |
| uri_auth_compat_req[i++] = "}"; |
| uri_auth_compat_req[i++] = ""; |
| |
| rule = parse_http_req_cond(uri_auth_compat_req, "internal-stats-auth-compat", 0, curproxy); |
| if (!rule) { |
| cfgerr++; |
| break; |
| } |
| |
| LIST_ADDQ(&curproxy->uri_auth->http_req_rules, &rule->list); |
| |
| if (curproxy->uri_auth->auth_realm) { |
| free(curproxy->uri_auth->auth_realm); |
| curproxy->uri_auth->auth_realm = NULL; |
| } |
| } |
| out_uri_auth_compat: |
| |
| /* check whether we have a log server that uses RFC5424 log format */ |
| list_for_each_entry(tmplogsrv, &curproxy->logsrvs, list) { |
| if (tmplogsrv->format == LOG_FORMAT_RFC5424) { |
| if (!curproxy->conf.logformat_sd_string) { |
| /* set the default logformat_sd_string */ |
| curproxy->conf.logformat_sd_string = default_rfc5424_sd_log_format; |
| } |
| break; |
| } |
| } |
| |
| /* compile the log format */ |
| if (!(curproxy->cap & PR_CAP_FE)) { |
| if (curproxy->conf.logformat_string != default_http_log_format && |
| curproxy->conf.logformat_string != default_tcp_log_format && |
| curproxy->conf.logformat_string != clf_http_log_format) |
| free(curproxy->conf.logformat_string); |
| curproxy->conf.logformat_string = NULL; |
| free(curproxy->conf.lfs_file); |
| curproxy->conf.lfs_file = NULL; |
| curproxy->conf.lfs_line = 0; |
| |
| if (curproxy->conf.logformat_sd_string != default_rfc5424_sd_log_format) |
| free(curproxy->conf.logformat_sd_string); |
| curproxy->conf.logformat_sd_string = NULL; |
| free(curproxy->conf.lfsd_file); |
| curproxy->conf.lfsd_file = NULL; |
| curproxy->conf.lfsd_line = 0; |
| } |
| |
| if (curproxy->conf.logformat_string) { |
| curproxy->conf.args.ctx = ARGC_LOG; |
| curproxy->conf.args.file = curproxy->conf.lfs_file; |
| curproxy->conf.args.line = curproxy->conf.lfs_line; |
| err = NULL; |
| if (!parse_logformat_string(curproxy->conf.logformat_string, curproxy, &curproxy->logformat, |
| LOG_OPT_MANDATORY|LOG_OPT_MERGE_SPACES, |
| SMP_VAL_FE_LOG_END, &err)) { |
| ha_alert("Parsing [%s:%d]: failed to parse log-format : %s.\n", |
| curproxy->conf.lfs_file, curproxy->conf.lfs_line, err); |
| free(err); |
| cfgerr++; |
| } |
| curproxy->conf.args.file = NULL; |
| curproxy->conf.args.line = 0; |
| } |
| |
| if (curproxy->conf.logformat_sd_string) { |
| curproxy->conf.args.ctx = ARGC_LOGSD; |
| curproxy->conf.args.file = curproxy->conf.lfsd_file; |
| curproxy->conf.args.line = curproxy->conf.lfsd_line; |
| err = NULL; |
| if (!parse_logformat_string(curproxy->conf.logformat_sd_string, curproxy, &curproxy->logformat_sd, |
| LOG_OPT_MANDATORY|LOG_OPT_MERGE_SPACES, |
| SMP_VAL_FE_LOG_END, &err)) { |
| ha_alert("Parsing [%s:%d]: failed to parse log-format-sd : %s.\n", |
| curproxy->conf.lfs_file, curproxy->conf.lfs_line, err); |
| free(err); |
| cfgerr++; |
| } else if (!add_to_logformat_list(NULL, NULL, LF_SEPARATOR, &curproxy->logformat_sd, &err)) { |
| ha_alert("Parsing [%s:%d]: failed to parse log-format-sd : %s.\n", |
| curproxy->conf.lfs_file, curproxy->conf.lfs_line, err); |
| free(err); |
| cfgerr++; |
| } |
| curproxy->conf.args.file = NULL; |
| curproxy->conf.args.line = 0; |
| } |
| |
| if (curproxy->conf.uniqueid_format_string) { |
| curproxy->conf.args.ctx = ARGC_UIF; |
| curproxy->conf.args.file = curproxy->conf.uif_file; |
| curproxy->conf.args.line = curproxy->conf.uif_line; |
| err = NULL; |
| if (!parse_logformat_string(curproxy->conf.uniqueid_format_string, curproxy, &curproxy->format_unique_id, |
| LOG_OPT_HTTP|LOG_OPT_MERGE_SPACES, |
| (curproxy->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR |
| : SMP_VAL_BE_HRQ_HDR, |
| &err)) { |
| ha_alert("Parsing [%s:%d]: failed to parse unique-id : %s.\n", |
| curproxy->conf.uif_file, curproxy->conf.uif_line, err); |
| free(err); |
| cfgerr++; |
| } |
| curproxy->conf.args.file = NULL; |
| curproxy->conf.args.line = 0; |
| } |
| |
| /* only now we can check if some args remain unresolved. |
| * This must be done after the users and groups resolution. |
| */ |
| cfgerr += smp_resolve_args(curproxy); |
| if (!cfgerr) |
| cfgerr += acl_find_targets(curproxy); |
| |
| if ((curproxy->mode == PR_MODE_TCP || curproxy->mode == PR_MODE_HTTP) && |
| (((curproxy->cap & PR_CAP_FE) && !curproxy->timeout.client) || |
| ((curproxy->cap & PR_CAP_BE) && (curproxy->srv) && |
| (!curproxy->timeout.connect || |
| (!curproxy->timeout.server && (curproxy->mode == PR_MODE_HTTP || !curproxy->timeout.tunnel)))))) { |
| ha_warning("config : missing timeouts for %s '%s'.\n" |
| " | While not properly invalid, you will certainly encounter various problems\n" |
| " | with such a configuration. To fix this, please ensure that all following\n" |
| " | timeouts are set to a non-zero value: 'client', 'connect', 'server'.\n", |
| proxy_type_str(curproxy), curproxy->id); |
| err_code |= ERR_WARN; |
| } |
| |
| /* Historically, the tarpit and queue timeouts were inherited from contimeout. |
| * We must still support older configurations, so let's find out whether those |
| * parameters have been set or must be copied from contimeouts. |
| */ |
| if (curproxy != &defproxy) { |
| if (!curproxy->timeout.tarpit || |
| curproxy->timeout.tarpit == defproxy.timeout.tarpit) { |
| /* tarpit timeout not set. We search in the following order: |
| * default.tarpit, curr.connect, default.connect. |
| */ |
| if (defproxy.timeout.tarpit) |
| curproxy->timeout.tarpit = defproxy.timeout.tarpit; |
| else if (curproxy->timeout.connect) |
| curproxy->timeout.tarpit = curproxy->timeout.connect; |
| else if (defproxy.timeout.connect) |
| curproxy->timeout.tarpit = defproxy.timeout.connect; |
| } |
| if ((curproxy->cap & PR_CAP_BE) && |
| (!curproxy->timeout.queue || |
| curproxy->timeout.queue == defproxy.timeout.queue)) { |
| /* queue timeout not set. We search in the following order: |
| * default.queue, curr.connect, default.connect. |
| */ |
| if (defproxy.timeout.queue) |
| curproxy->timeout.queue = defproxy.timeout.queue; |
| else if (curproxy->timeout.connect) |
| curproxy->timeout.queue = curproxy->timeout.connect; |
| else if (defproxy.timeout.connect) |
| curproxy->timeout.queue = defproxy.timeout.connect; |
| } |
| } |
| |
| if ((curproxy->tcpcheck_rules.flags & TCPCHK_RULES_UNUSED_TCP_RS)) { |
| ha_warning("config : %s '%s' uses tcp-check rules without 'option tcp-check', so the rules are ignored.\n", |
| proxy_type_str(curproxy), curproxy->id); |
| err_code |= ERR_WARN; |
| } |
| |
| /* ensure that cookie capture length is not too large */ |
| if (curproxy->capture_len >= global.tune.cookie_len) { |
| ha_warning("config : truncating capture length to %d bytes for %s '%s'.\n", |
| global.tune.cookie_len - 1, proxy_type_str(curproxy), curproxy->id); |
| err_code |= ERR_WARN; |
| curproxy->capture_len = global.tune.cookie_len - 1; |
| } |
| |
| /* The small pools required for the capture lists */ |
| if (curproxy->nb_req_cap) { |
| curproxy->req_cap_pool = create_pool("ptrcap", |
| curproxy->nb_req_cap * sizeof(char *), |
| MEM_F_SHARED); |
| } |
| |
| if (curproxy->nb_rsp_cap) { |
| curproxy->rsp_cap_pool = create_pool("ptrcap", |
| curproxy->nb_rsp_cap * sizeof(char *), |
| MEM_F_SHARED); |
| } |
| |
| switch (curproxy->load_server_state_from_file) { |
| case PR_SRV_STATE_FILE_UNSPEC: |
| curproxy->load_server_state_from_file = PR_SRV_STATE_FILE_NONE; |
| break; |
| case PR_SRV_STATE_FILE_GLOBAL: |
| if (!global.server_state_file) { |
| ha_warning("config : backend '%s' configured to load server state file from global section 'server-state-file' directive. Unfortunately, 'server-state-file' is not set!\n", |
| curproxy->id); |
| err_code |= ERR_WARN; |
| } |
| break; |
| } |
| |
| /* first, we will invert the servers list order */ |
| newsrv = NULL; |
| while (curproxy->srv) { |
| struct server *next; |
| |
| next = curproxy->srv->next; |
| curproxy->srv->next = newsrv; |
| newsrv = curproxy->srv; |
| if (!next) |
| break; |
| curproxy->srv = next; |
| } |
| |
| /* Check that no server name conflicts. This causes trouble in the stats. |
| * We only emit a warning for the first conflict affecting each server, |
| * in order to avoid combinatory explosion if all servers have the same |
| * name. We do that only for servers which do not have an explicit ID, |
| * because these IDs were made also for distinguishing them and we don't |
| * want to annoy people who correctly manage them. |
| */ |
| for (newsrv = curproxy->srv; newsrv; newsrv = newsrv->next) { |
| struct server *other_srv; |
| |
| if (newsrv->puid) |
| continue; |
| |
| for (other_srv = curproxy->srv; other_srv && other_srv != newsrv; other_srv = other_srv->next) { |
| if (!other_srv->puid && strcmp(other_srv->id, newsrv->id) == 0) { |
| ha_alert("parsing [%s:%d] : %s '%s', another server named '%s' was already defined at line %d, please use distinct names.\n", |
| newsrv->conf.file, newsrv->conf.line, |
| proxy_type_str(curproxy), curproxy->id, |
| newsrv->id, other_srv->conf.line); |
| cfgerr++; |
| break; |
| } |
| } |
| } |
| |
| /* assign automatic UIDs to servers which don't have one yet */ |
| next_id = 1; |
| newsrv = curproxy->srv; |
| while (newsrv != NULL) { |
| if (!newsrv->puid) { |
| /* server ID not set, use automatic numbering with first |
| * spare entry starting with next_svid. |
| */ |
| next_id = get_next_id(&curproxy->conf.used_server_id, next_id); |
| newsrv->conf.id.key = newsrv->puid = next_id; |
| eb32_insert(&curproxy->conf.used_server_id, &newsrv->conf.id); |
| newsrv->conf.name.key = newsrv->id; |
| ebis_insert(&curproxy->conf.used_server_name, &newsrv->conf.name); |
| } |
| next_id++; |
| newsrv = newsrv->next; |
| } |
| |
| curproxy->lbprm.wmult = 1; /* default weight multiplier */ |
| curproxy->lbprm.wdiv = 1; /* default weight divider */ |
| |
| /* |
| * If this server supports a maxconn parameter, it needs a dedicated |
| * tasks to fill the emptied slots when a connection leaves. |
| * Also, resolve deferred tracking dependency if needed. |
| */ |
| newsrv = curproxy->srv; |
| while (newsrv != NULL) { |
| if (newsrv->minconn > newsrv->maxconn) { |
| /* Only 'minconn' was specified, or it was higher than or equal |
| * to 'maxconn'. Let's turn this into maxconn and clean it, as |
| * this will avoid further useless expensive computations. |
| */ |
| newsrv->maxconn = newsrv->minconn; |
| } else if (newsrv->maxconn && !newsrv->minconn) { |
| /* minconn was not specified, so we set it to maxconn */ |
| newsrv->minconn = newsrv->maxconn; |
| } |
| |
| /* this will also properly set the transport layer for prod and checks */ |
| if (newsrv->use_ssl == 1 || newsrv->check.use_ssl == 1 || (newsrv->proxy->options & PR_O_TCPCHK_SSL)) { |
| if (xprt_get(XPRT_SSL) && xprt_get(XPRT_SSL)->prepare_srv) |
| cfgerr += xprt_get(XPRT_SSL)->prepare_srv(newsrv); |
| } |
| |
| if ((newsrv->flags & SRV_F_FASTOPEN) && |
| ((curproxy->retry_type & (PR_RE_DISCONNECTED | PR_RE_TIMEOUT)) != |
| (PR_RE_DISCONNECTED | PR_RE_TIMEOUT))) |
| ha_warning("parsing [%s:%d] : %s '%s': server '%s' has tfo activated, the backend should be configured with at least 'conn-failure', 'empty-response' and 'response-timeout' or we wouldn't be able to retry the connection on failure.\n", |
| newsrv->conf.file, newsrv->conf.line, |
| proxy_type_str(curproxy), curproxy->id, |
| newsrv->id); |
| |
| if (newsrv->trackit) { |
| struct proxy *px; |
| struct server *srv, *loop; |
| char *pname, *sname; |
| |
| pname = newsrv->trackit; |
| sname = strrchr(pname, '/'); |
| |
| if (sname) |
| *sname++ = '\0'; |
| else { |
| sname = pname; |
| pname = NULL; |
| } |
| |
| if (pname) { |
| px = proxy_be_by_name(pname); |
| if (!px) { |
| ha_alert("config : %s '%s', server '%s': unable to find required proxy '%s' for tracking.\n", |
| proxy_type_str(curproxy), curproxy->id, |
| newsrv->id, pname); |
| cfgerr++; |
| goto next_srv; |
| } |
| } else |
| px = curproxy; |
| |
| srv = findserver(px, sname); |
| if (!srv) { |
| ha_alert("config : %s '%s', server '%s': unable to find required server '%s' for tracking.\n", |
| proxy_type_str(curproxy), curproxy->id, |
| newsrv->id, sname); |
| cfgerr++; |
| goto next_srv; |
| } |
| |
| if (!srv->do_check && !srv->do_agent && !srv->track && !srv->trackit) { |
| ha_alert("config : %s '%s', server '%s': unable to use %s/%s for " |
| "tracking as it does not have any check nor agent enabled.\n", |
| proxy_type_str(curproxy), curproxy->id, |
| newsrv->id, px->id, srv->id); |
| cfgerr++; |
| goto next_srv; |
| } |
| |
| for (loop = srv->track; loop && loop != newsrv; loop = loop->track); |
| |
| if (newsrv == srv || loop) { |
| ha_alert("config : %s '%s', server '%s': unable to track %s/%s as it " |
| "belongs to a tracking chain looping back to %s/%s.\n", |
| proxy_type_str(curproxy), curproxy->id, |
| newsrv->id, px->id, srv->id, px->id, |
| newsrv == srv ? srv->id : loop->id); |
| cfgerr++; |
| goto next_srv; |
| } |
| |
| if (curproxy != px && |
| (curproxy->options & PR_O_DISABLE404) != (px->options & PR_O_DISABLE404)) { |
| ha_alert("config : %s '%s', server '%s': unable to use %s/%s for" |
| "tracking: disable-on-404 option inconsistency.\n", |
| proxy_type_str(curproxy), curproxy->id, |
| newsrv->id, px->id, srv->id); |
| cfgerr++; |
| goto next_srv; |
| } |
| |
| newsrv->track = srv; |
| newsrv->tracknext = srv->trackers; |
| srv->trackers = newsrv; |
| |
| free(newsrv->trackit); |
| newsrv->trackit = NULL; |
| } |
| |
| next_srv: |
| newsrv = newsrv->next; |
| } |
| |
| /* |
| * Try to generate dynamic cookies for servers now. |
| * It couldn't be done earlier, since at the time we parsed |
| * the server line, we may not have known yet that we |
| * should use dynamic cookies, or the secret key may not |
| * have been provided yet. |
| */ |
| if (curproxy->ck_opts & PR_CK_DYNAMIC) { |
| newsrv = curproxy->srv; |
| while (newsrv != NULL) { |
| srv_set_dyncookie(newsrv); |
| newsrv = newsrv->next; |
| } |
| |
| } |
| /* We have to initialize the server lookup mechanism depending |
| * on what LB algorithm was chosen. |
| */ |
| |
| curproxy->lbprm.algo &= ~(BE_LB_LKUP | BE_LB_PROP_DYN); |
| switch (curproxy->lbprm.algo & BE_LB_KIND) { |
| case BE_LB_KIND_RR: |
| if ((curproxy->lbprm.algo & BE_LB_PARM) == BE_LB_RR_STATIC) { |
| curproxy->lbprm.algo |= BE_LB_LKUP_MAP; |
| init_server_map(curproxy); |
| } else if ((curproxy->lbprm.algo & BE_LB_PARM) == BE_LB_RR_RANDOM) { |
| curproxy->lbprm.algo |= BE_LB_LKUP_CHTREE | BE_LB_PROP_DYN; |
| chash_init_server_tree(curproxy); |
| } else { |
| curproxy->lbprm.algo |= BE_LB_LKUP_RRTREE | BE_LB_PROP_DYN; |
| fwrr_init_server_groups(curproxy); |
| } |
| break; |
| |
| case BE_LB_KIND_CB: |
| if ((curproxy->lbprm.algo & BE_LB_PARM) == BE_LB_CB_LC) { |
| curproxy->lbprm.algo |= BE_LB_LKUP_LCTREE | BE_LB_PROP_DYN; |
| fwlc_init_server_tree(curproxy); |
| } else { |
| curproxy->lbprm.algo |= BE_LB_LKUP_FSTREE | BE_LB_PROP_DYN; |
| fas_init_server_tree(curproxy); |
| } |
| break; |
| |
| case BE_LB_KIND_HI: |
| if ((curproxy->lbprm.algo & BE_LB_HASH_TYPE) == BE_LB_HASH_CONS) { |
| curproxy->lbprm.algo |= BE_LB_LKUP_CHTREE | BE_LB_PROP_DYN; |
| chash_init_server_tree(curproxy); |
| } else { |
| curproxy->lbprm.algo |= BE_LB_LKUP_MAP; |
| init_server_map(curproxy); |
| } |
| break; |
| } |
| HA_SPIN_INIT(&curproxy->lbprm.lock); |
| |
| if (curproxy->options & PR_O_LOGASAP) |
| curproxy->to_log &= ~LW_BYTES; |
| |
| if ((curproxy->mode == PR_MODE_TCP || curproxy->mode == PR_MODE_HTTP) && |
| (curproxy->cap & PR_CAP_FE) && LIST_ISEMPTY(&curproxy->logsrvs) && |
| (!LIST_ISEMPTY(&curproxy->logformat) || !LIST_ISEMPTY(&curproxy->logformat_sd))) { |
| ha_warning("config : log format ignored for %s '%s' since it has no log address.\n", |
| proxy_type_str(curproxy), curproxy->id); |
| err_code |= ERR_WARN; |
| } |
| |
| if (curproxy->mode != PR_MODE_HTTP) { |
| int optnum; |
| |
| if (curproxy->uri_auth) { |
| ha_warning("config : 'stats' statement ignored for %s '%s' as it requires HTTP mode.\n", |
| proxy_type_str(curproxy), curproxy->id); |
| err_code |= ERR_WARN; |
| curproxy->uri_auth = NULL; |
| } |
| |
| if (curproxy->capture_name) { |
| ha_warning("config : 'capture' statement ignored for %s '%s' as it requires HTTP mode.\n", |
| proxy_type_str(curproxy), curproxy->id); |
| err_code |= ERR_WARN; |
| } |
| |
| if (!LIST_ISEMPTY(&curproxy->http_req_rules)) { |
| ha_warning("config : 'http-request' rules ignored for %s '%s' as they require HTTP mode.\n", |
| proxy_type_str(curproxy), curproxy->id); |
| err_code |= ERR_WARN; |
| } |
| |
| if (!LIST_ISEMPTY(&curproxy->http_res_rules)) { |
| ha_warning("config : 'http-response' rules ignored for %s '%s' as they require HTTP mode.\n", |
| proxy_type_str(curproxy), curproxy->id); |
| err_code |= ERR_WARN; |
| } |
| |
| if (!LIST_ISEMPTY(&curproxy->redirect_rules)) { |
| ha_warning("config : 'redirect' rules ignored for %s '%s' as they require HTTP mode.\n", |
| proxy_type_str(curproxy), curproxy->id); |
| err_code |= ERR_WARN; |
| } |
| |
| if (curproxy->options & (PR_O_FWDFOR | PR_O_FF_ALWAYS)) { |
| ha_warning("config : 'option %s' ignored for %s '%s' as it requires HTTP mode.\n", |
| "forwardfor", proxy_type_str(curproxy), curproxy->id); |
| err_code |= ERR_WARN; |
| curproxy->options &= ~(PR_O_FWDFOR | PR_O_FF_ALWAYS); |
| } |
| |
| if (curproxy->options & PR_O_ORGTO) { |
| ha_warning("config : 'option %s' ignored for %s '%s' as it requires HTTP mode.\n", |
| "originalto", proxy_type_str(curproxy), curproxy->id); |
| err_code |= ERR_WARN; |
| curproxy->options &= ~PR_O_ORGTO; |
| } |
| |
| for (optnum = 0; cfg_opts[optnum].name; optnum++) { |
| if (cfg_opts[optnum].mode == PR_MODE_HTTP && |
| (curproxy->cap & cfg_opts[optnum].cap) && |
| (curproxy->options & cfg_opts[optnum].val)) { |
| ha_warning("config : 'option %s' ignored for %s '%s' as it requires HTTP mode.\n", |
| cfg_opts[optnum].name, proxy_type_str(curproxy), curproxy->id); |
| err_code |= ERR_WARN; |
| curproxy->options &= ~cfg_opts[optnum].val; |
| } |
| } |
| |
| for (optnum = 0; cfg_opts2[optnum].name; optnum++) { |
| if (cfg_opts2[optnum].mode == PR_MODE_HTTP && |
| (curproxy->cap & cfg_opts2[optnum].cap) && |
| (curproxy->options2 & cfg_opts2[optnum].val)) { |
| ha_warning("config : 'option %s' ignored for %s '%s' as it requires HTTP mode.\n", |
| cfg_opts2[optnum].name, proxy_type_str(curproxy), curproxy->id); |
| err_code |= ERR_WARN; |
| curproxy->options2 &= ~cfg_opts2[optnum].val; |
| } |
| } |
| |
| #if defined(CONFIG_HAP_TRANSPARENT) |
| if (curproxy->conn_src.bind_hdr_occ) { |
| curproxy->conn_src.bind_hdr_occ = 0; |
| ha_warning("config : %s '%s' : ignoring use of header %s as source IP in non-HTTP mode.\n", |
| proxy_type_str(curproxy), curproxy->id, curproxy->conn_src.bind_hdr_name); |
| err_code |= ERR_WARN; |
| } |
| #endif |
| } |
| |
| /* |
| * ensure that we're not cross-dressing a TCP server into HTTP. |
| */ |
| newsrv = curproxy->srv; |
| while (newsrv != NULL) { |
| if ((curproxy->mode != PR_MODE_HTTP) && newsrv->rdr_len) { |
| ha_alert("config : %s '%s' : server cannot have cookie or redirect prefix in non-HTTP mode.\n", |
| proxy_type_str(curproxy), curproxy->id); |
| cfgerr++; |
| } |
| |
| if ((curproxy->mode != PR_MODE_HTTP) && newsrv->cklen) { |
| ha_warning("config : %s '%s' : ignoring cookie for server '%s' as HTTP mode is disabled.\n", |
| proxy_type_str(curproxy), curproxy->id, newsrv->id); |
| err_code |= ERR_WARN; |
| } |
| |
| if ((newsrv->flags & SRV_F_MAPPORTS) && (curproxy->options2 & PR_O2_RDPC_PRST)) { |
| ha_warning("config : %s '%s' : RDP cookie persistence will not work for server '%s' because it lacks an explicit port number.\n", |
| proxy_type_str(curproxy), curproxy->id, newsrv->id); |
| err_code |= ERR_WARN; |
| } |
| |
| #if defined(CONFIG_HAP_TRANSPARENT) |
| if (curproxy->mode != PR_MODE_HTTP && newsrv->conn_src.bind_hdr_occ) { |
| newsrv->conn_src.bind_hdr_occ = 0; |
| ha_warning("config : %s '%s' : server %s cannot use header %s as source IP in non-HTTP mode.\n", |
| proxy_type_str(curproxy), curproxy->id, newsrv->id, newsrv->conn_src.bind_hdr_name); |
| err_code |= ERR_WARN; |
| } |
| #endif |
| |
| if ((curproxy->mode != PR_MODE_HTTP) && (curproxy->options & PR_O_REUSE_MASK) != PR_O_REUSE_NEVR) |
| curproxy->options &= ~PR_O_REUSE_MASK; |
| |
| newsrv = newsrv->next; |
| } |
| |
| /* Check filter configuration, if any */ |
| cfgerr += flt_check(curproxy); |
| |
| if (curproxy->cap & PR_CAP_FE) { |
| if (!curproxy->accept) |
| curproxy->accept = frontend_accept; |
| |
| if (curproxy->tcp_req.inspect_delay || |
| !LIST_ISEMPTY(&curproxy->tcp_req.inspect_rules)) |
| curproxy->fe_req_ana |= AN_REQ_INSPECT_FE; |
| |
| if (curproxy->mode == PR_MODE_HTTP) { |
| curproxy->fe_req_ana |= AN_REQ_WAIT_HTTP | AN_REQ_HTTP_PROCESS_FE; |
| curproxy->fe_rsp_ana |= AN_RES_WAIT_HTTP | AN_RES_HTTP_PROCESS_FE; |
| } |
| |
| if (curproxy->mode == PR_MODE_CLI) { |
| curproxy->fe_req_ana |= AN_REQ_WAIT_CLI; |
| curproxy->fe_rsp_ana |= AN_RES_WAIT_CLI; |
| } |
| |
| /* both TCP and HTTP must check switching rules */ |
| curproxy->fe_req_ana |= AN_REQ_SWITCHING_RULES; |
| |
| /* Add filters analyzers if needed */ |
| if (!LIST_ISEMPTY(&curproxy->filter_configs)) { |
| curproxy->fe_req_ana |= AN_REQ_FLT_START_FE | AN_REQ_FLT_XFER_DATA | AN_REQ_FLT_END; |
| curproxy->fe_rsp_ana |= AN_RES_FLT_START_FE | AN_RES_FLT_XFER_DATA | AN_RES_FLT_END; |
| if (curproxy->mode == PR_MODE_HTTP) { |
| curproxy->fe_req_ana |= AN_REQ_FLT_HTTP_HDRS; |
| curproxy->fe_rsp_ana |= AN_RES_FLT_HTTP_HDRS; |
| } |
| } |
| } |
| |
| if (curproxy->cap & PR_CAP_BE) { |
| if (curproxy->tcp_req.inspect_delay || |
| !LIST_ISEMPTY(&curproxy->tcp_req.inspect_rules)) |
| curproxy->be_req_ana |= AN_REQ_INSPECT_BE; |
| |
| if (!LIST_ISEMPTY(&curproxy->tcp_rep.inspect_rules)) |
| curproxy->be_rsp_ana |= AN_RES_INSPECT; |
| |
| if (curproxy->mode == PR_MODE_HTTP) { |
| curproxy->be_req_ana |= AN_REQ_WAIT_HTTP | AN_REQ_HTTP_INNER | AN_REQ_HTTP_PROCESS_BE; |
| curproxy->be_rsp_ana |= AN_RES_WAIT_HTTP | AN_RES_HTTP_PROCESS_BE; |
| } |
| |
| /* If the backend does requires RDP cookie persistence, we have to |
| * enable the corresponding analyser. |
| */ |
| if (curproxy->options2 & PR_O2_RDPC_PRST) |
| curproxy->be_req_ana |= AN_REQ_PRST_RDP_COOKIE; |
| |
| /* Add filters analyzers if needed */ |
| if (!LIST_ISEMPTY(&curproxy->filter_configs)) { |
| curproxy->be_req_ana |= AN_REQ_FLT_START_BE | AN_REQ_FLT_XFER_DATA | AN_REQ_FLT_END; |
| curproxy->be_rsp_ana |= AN_RES_FLT_START_BE | AN_RES_FLT_XFER_DATA | AN_RES_FLT_END; |
| if (curproxy->mode == PR_MODE_HTTP) { |
| curproxy->be_req_ana |= AN_REQ_FLT_HTTP_HDRS; |
| curproxy->be_rsp_ana |= AN_RES_FLT_HTTP_HDRS; |
| } |
| } |
| } |
| |
| /* Check the mux protocols, if any, for each listener and server |
| * attached to the current proxy */ |
| list_for_each_entry(bind_conf, &curproxy->conf.bind, by_fe) { |
| int mode = (1 << (curproxy->mode == PR_MODE_HTTP)); |
| const struct mux_proto_list *mux_ent; |
| |
| if (!bind_conf->mux_proto) |
| continue; |
| |
| /* it is possible that an incorrect mux was referenced |
| * due to the proxy's mode not being taken into account |
| * on first pass. Let's adjust it now. |
| */ |
| mux_ent = conn_get_best_mux_entry(bind_conf->mux_proto->token, PROTO_SIDE_FE, mode); |
| |
| if (!mux_ent || !isteq(mux_ent->token, bind_conf->mux_proto->token)) { |
| ha_alert("config : %s '%s' : MUX protocol '%.*s' is not usable for 'bind %s' at [%s:%d].\n", |
| proxy_type_str(curproxy), curproxy->id, |
| (int)bind_conf->mux_proto->token.len, |
| bind_conf->mux_proto->token.ptr, |
| bind_conf->arg, bind_conf->file, bind_conf->line); |
| cfgerr++; |
| } |
| |
| /* update the mux */ |
| bind_conf->mux_proto = mux_ent; |
| } |
| for (newsrv = curproxy->srv; newsrv; newsrv = newsrv->next) { |
| int mode = (1 << (curproxy->mode == PR_MODE_HTTP)); |
| const struct mux_proto_list *mux_ent; |
| |
| if (!newsrv->mux_proto) |
| continue; |
| |
| /* it is possible that an incorrect mux was referenced |
| * due to the proxy's mode not being taken into account |
| * on first pass. Let's adjust it now. |
| */ |
| mux_ent = conn_get_best_mux_entry(newsrv->mux_proto->token, PROTO_SIDE_BE, mode); |
| |
| if (!mux_ent || !isteq(mux_ent->token, newsrv->mux_proto->token)) { |
| ha_alert("config : %s '%s' : MUX protocol '%.*s' is not usable for server '%s' at [%s:%d].\n", |
| proxy_type_str(curproxy), curproxy->id, |
| (int)newsrv->mux_proto->token.len, |
| newsrv->mux_proto->token.ptr, |
| newsrv->id, newsrv->conf.file, newsrv->conf.line); |
| cfgerr++; |
| } |
| |
| /* update the mux */ |
| newsrv->mux_proto = mux_ent; |
| } |
| |
| /* initialize idle conns lists */ |
| for (newsrv = curproxy->srv; newsrv; newsrv = newsrv->next) { |
| int i; |
| |
| newsrv->available_conns = calloc(global.nbthread, sizeof(*newsrv->available_conns)); |
| |
| if (!newsrv->available_conns) { |
| ha_alert("parsing [%s:%d] : failed to allocate idle connections for server '%s'.\n", |
| newsrv->conf.file, newsrv->conf.line, newsrv->id); |
| cfgerr++; |
| continue; |
| } |
| |
| for (i = 0; i < global.nbthread; i++) |
| LIST_INIT(&newsrv->available_conns[i]); |
| |
| if (newsrv->max_idle_conns != 0) { |
| if (idle_conn_task == NULL) { |
| idle_conn_task = task_new(MAX_THREADS_MASK); |
| if (!idle_conn_task) |
| goto err; |
| |
| idle_conn_task->process = srv_cleanup_idle_connections; |
| idle_conn_task->context = NULL; |
| |
| for (i = 0; i < global.nbthread; i++) { |
| idle_conns[i].cleanup_task = task_new(1UL << i); |
| if (!idle_conns[i].cleanup_task) |
| goto err; |
| idle_conns[i].cleanup_task->process = srv_cleanup_toremove_connections; |
| idle_conns[i].cleanup_task->context = NULL; |
| HA_SPIN_INIT(&idle_conns[i].takeover_lock); |
| MT_LIST_INIT(&idle_conns[i].toremove_conns); |
| } |
| } |
| |
| newsrv->idle_conns = calloc((unsigned short)global.nbthread, sizeof(*newsrv->idle_conns)); |
| if (!newsrv->idle_conns) { |
| ha_alert("parsing [%s:%d] : failed to allocate idle connections for server '%s'.\n", |
| newsrv->conf.file, newsrv->conf.line, newsrv->id); |
| cfgerr++; |
| continue; |
| } |
| |
| for (i = 0; i < global.nbthread; i++) |
| MT_LIST_INIT(&newsrv->idle_conns[i]); |
| |
| newsrv->safe_conns = calloc(global.nbthread, sizeof(*newsrv->safe_conns)); |
| if (!newsrv->safe_conns) { |
| ha_alert("parsing [%s:%d] : failed to allocate idle connections for server '%s'.\n", |
| newsrv->conf.file, newsrv->conf.line, newsrv->id); |
| cfgerr++; |
| continue; |
| } |
| |
| for (i = 0; i < global.nbthread; i++) |
| MT_LIST_INIT(&newsrv->safe_conns[i]); |
| |
| newsrv->curr_idle_thr = calloc(global.nbthread, sizeof(*newsrv->curr_idle_thr)); |
| if (!newsrv->curr_idle_thr) |
| goto err; |
| continue; |
| err: |
| ha_alert("parsing [%s:%d] : failed to allocate idle connection tasks for server '%s'.\n", |
| newsrv->conf.file, newsrv->conf.line, newsrv->id); |
| cfgerr++; |
| continue; |
| } |
| } |
| } |
| |
| /***********************************************************/ |
| /* At this point, target names have already been resolved. */ |
| /***********************************************************/ |
| |
| /* Check multi-process mode compatibility */ |
| |
| if (global.nbproc > 1 && global.stats_fe) { |
| list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) { |
| unsigned long mask; |
| |
| mask = proc_mask(global.stats_fe->bind_proc) && all_proc_mask; |
| mask &= proc_mask(bind_conf->settings.bind_proc); |
| |
| /* stop here if more than one process is used */ |
| if (atleast2(mask)) |
| break; |
| } |
| if (&bind_conf->by_fe != &global.stats_fe->conf.bind) { |
| ha_warning("stats socket will not work as expected in multi-process mode (nbproc > 1), you should force process binding globally using 'stats bind-process' or per socket using the 'process' attribute.\n"); |
| } |
| } |
| |
| /* Make each frontend inherit bind-process from its listeners when not specified. */ |
| for (curproxy = proxies_list; curproxy; curproxy = curproxy->next) { |
| if (curproxy->bind_proc) |
| continue; |
| |
| list_for_each_entry(bind_conf, &curproxy->conf.bind, by_fe) { |
| unsigned long mask; |
| |
| mask = proc_mask(bind_conf->settings.bind_proc); |
| curproxy->bind_proc |= mask; |
| } |
| curproxy->bind_proc = proc_mask(curproxy->bind_proc); |
| } |
| |
| if (global.stats_fe) { |
| list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) { |
| unsigned long mask; |
| |
| mask = bind_conf->settings.bind_proc ? bind_conf->settings.bind_proc : 0; |
| global.stats_fe->bind_proc |= mask; |
| } |
| global.stats_fe->bind_proc = proc_mask(global.stats_fe->bind_proc); |
| } |
| |
| /* propagate bindings from frontends to backends. Don't do it if there |
| * are any fatal errors as we must not call it with unresolved proxies. |
| */ |
| if (!cfgerr) { |
| for (curproxy = proxies_list; curproxy; curproxy = curproxy->next) { |
| if (curproxy->cap & PR_CAP_FE) |
| propagate_processes(curproxy, NULL); |
| } |
| } |
| |
| /* Bind each unbound backend to all processes when not specified. */ |
| for (curproxy = proxies_list; curproxy; curproxy = curproxy->next) |
| curproxy->bind_proc = proc_mask(curproxy->bind_proc); |
| |
| /*******************************************************/ |
| /* At this step, all proxies have a non-null bind_proc */ |
| /*******************************************************/ |
| |
| /* perform the final checks before creating tasks */ |
| |
| for (curproxy = proxies_list; curproxy; curproxy = curproxy->next) { |
| struct listener *listener; |
| unsigned int next_id; |
| |
| /* Configure SSL for each bind line. |
| * Note: if configuration fails at some point, the ->ctx member |
| * remains NULL so that listeners can later detach. |
| */ |
| list_for_each_entry(bind_conf, &curproxy->conf.bind, by_fe) { |
| if (bind_conf->xprt->prepare_bind_conf && |
| bind_conf->xprt->prepare_bind_conf(bind_conf) < 0) |
| cfgerr++; |
| } |
| |
| /* adjust this proxy's listeners */ |
| next_id = 1; |
| list_for_each_entry(listener, &curproxy->conf.listeners, by_fe) { |
| int nbproc; |
| |
| nbproc = my_popcountl(curproxy->bind_proc & |
| (listener->bind_conf->settings.bind_proc ? listener->bind_conf->settings.bind_proc : curproxy->bind_proc) & |
| all_proc_mask); |
| |
| if (!nbproc) /* no intersection between listener and frontend */ |
| nbproc = 1; |
| |
| if (!listener->luid) { |
| /* listener ID not set, use automatic numbering with first |
| * spare entry starting with next_luid. |
| */ |
| next_id = get_next_id(&curproxy->conf.used_listener_id, next_id); |
| listener->conf.id.key = listener->luid = next_id; |
| eb32_insert(&curproxy->conf.used_listener_id, &listener->conf.id); |
| } |
| next_id++; |
| |
| /* enable separate counters */ |
| if (curproxy->options2 & PR_O2_SOCKSTAT) { |
| listener->counters = calloc(1, sizeof(*listener->counters)); |
| if (!listener->name) |
| memprintf(&listener->name, "sock-%d", listener->luid); |
| } |
| |
| if (curproxy->options & PR_O_TCP_NOLING) |
| listener->options |= LI_O_NOLINGER; |
| if (!listener->maxaccept) |
| listener->maxaccept = global.tune.maxaccept ? global.tune.maxaccept : 64; |
| |
| /* we want to have an optimal behaviour on single process mode to |
| * maximize the work at once, but in multi-process we want to keep |
| * some fairness between processes, so we target half of the max |
| * number of events to be balanced over all the processes the proxy |
| * is bound to. Remember that maxaccept = -1 must be kept as it is |
| * used to disable the limit. |
| */ |
| if (listener->maxaccept > 0 && nbproc > 1) { |
| listener->maxaccept = (listener->maxaccept + 1) / 2; |
| listener->maxaccept = (listener->maxaccept + nbproc - 1) / nbproc; |
| } |
| |
| listener->accept = session_accept_fd; |
| listener->analysers |= curproxy->fe_req_ana; |
| listener->default_target = curproxy->default_target; |
| |
| if (!LIST_ISEMPTY(&curproxy->tcp_req.l4_rules)) |
| listener->options |= LI_O_TCP_L4_RULES; |
| |
| if (!LIST_ISEMPTY(&curproxy->tcp_req.l5_rules)) |
| listener->options |= LI_O_TCP_L5_RULES; |
| |
| if (curproxy->mon_mask.s_addr) |
| listener->options |= LI_O_CHK_MONNET; |
| |
| /* smart accept mode is automatic in HTTP mode */ |
| if ((curproxy->options2 & PR_O2_SMARTACC) || |
| ((curproxy->mode == PR_MODE_HTTP || listener->bind_conf->is_ssl) && |
| !(curproxy->no_options2 & PR_O2_SMARTACC))) |
| listener->options |= LI_O_NOQUICKACK; |
| } |
| |
| /* Release unused SSL configs */ |
| list_for_each_entry(bind_conf, &curproxy->conf.bind, by_fe) { |
| if (!bind_conf->is_ssl && bind_conf->xprt->destroy_bind_conf) |
| bind_conf->xprt->destroy_bind_conf(bind_conf); |
| } |
| |
| if (atleast2(curproxy->bind_proc & all_proc_mask)) { |
| if (curproxy->uri_auth) { |
| int count, maxproc = 0; |
| |
| list_for_each_entry(bind_conf, &curproxy->conf.bind, by_fe) { |
| count = my_popcountl(bind_conf->settings.bind_proc); |
| if (count > maxproc) |
| maxproc = count; |
| } |
| /* backends have 0, frontends have 1 or more */ |
| if (maxproc != 1) |
| ha_warning("Proxy '%s': in multi-process mode, stats will be" |
| " limited to process assigned to the current request.\n", |
| curproxy->id); |
| |
| if (!LIST_ISEMPTY(&curproxy->uri_auth->admin_rules)) { |
| ha_warning("Proxy '%s': stats admin will not work correctly in multi-process mode.\n", |
| curproxy->id); |
| } |
| } |
| if (!LIST_ISEMPTY(&curproxy->sticking_rules)) { |
| ha_warning("Proxy '%s': sticking rules will not work correctly in multi-process mode.\n", |
| curproxy->id); |
| } |
| } |
| |
| /* create the task associated with the proxy */ |
| curproxy->task = task_new(MAX_THREADS_MASK); |
| if (curproxy->task) { |
| curproxy->task->context = curproxy; |
| curproxy->task->process = manage_proxy; |
| } else { |
| ha_alert("Proxy '%s': no more memory when trying to allocate the management task\n", |
| curproxy->id); |
| cfgerr++; |
| } |
| } |
| |
| /* |
| * Recount currently required checks. |
| */ |
| |
| for (curproxy=proxies_list; curproxy; curproxy=curproxy->next) { |
| int optnum; |
| |
| for (optnum = 0; cfg_opts[optnum].name; optnum++) |
| if (curproxy->options & cfg_opts[optnum].val) |
| global.last_checks |= cfg_opts[optnum].checks; |
| |
| for (optnum = 0; cfg_opts2[optnum].name; optnum++) |
| if (curproxy->options2 & cfg_opts2[optnum].val) |
| global.last_checks |= cfg_opts2[optnum].checks; |
| } |
| |
| /* compute the required process bindings for the peers */ |
| for (curproxy = proxies_list; curproxy; curproxy = curproxy->next) |
| if (curproxy->table && curproxy->table->peers.p) |
| curproxy->table->peers.p->peers_fe->bind_proc |= curproxy->bind_proc; |
| |
| /* compute the required process bindings for the peers from <stktables_list> |
| * for all the stick-tables, the ones coming with "peers" sections included. |
| */ |
| for (t = stktables_list; t; t = t->next) { |
| struct proxy *p; |
| |
| for (p = t->proxies_list; p; p = p->next_stkt_ref) { |
| if (t->peers.p && t->peers.p->peers_fe) { |
| t->peers.p->peers_fe->bind_proc |= p->bind_proc; |
| } |
| } |
| } |
| |
| if (cfg_peers) { |
| struct peers *curpeers = cfg_peers, **last; |
| struct peer *p, *pb; |
| |
| /* In the case the peers frontend was not initialized by a |
| stick-table used in the configuration, set its bind_proc |
| by default to the first process. */ |
| while (curpeers) { |
| if (curpeers->peers_fe) { |
| if (curpeers->peers_fe->bind_proc == 0) |
| curpeers->peers_fe->bind_proc = 1; |
| } |
| curpeers = curpeers->next; |
| } |
| |
| curpeers = cfg_peers; |
| /* Remove all peers sections which don't have a valid listener, |
| * which are not used by any table, or which are bound to more |
| * than one process. |
| */ |
| last = &cfg_peers; |
| while (*last) { |
| struct stktable *t; |
| curpeers = *last; |
| |
| if (curpeers->state == PR_STSTOPPED) { |
| /* the "disabled" keyword was present */ |
| if (curpeers->peers_fe) |
| stop_proxy(curpeers->peers_fe); |
| curpeers->peers_fe = NULL; |
| } |
| else if (!curpeers->peers_fe || !curpeers->peers_fe->id) { |
| ha_warning("Removing incomplete section 'peers %s' (no peer named '%s').\n", |
| curpeers->id, localpeer); |
| if (curpeers->peers_fe) |
| stop_proxy(curpeers->peers_fe); |
| curpeers->peers_fe = NULL; |
| } |
| else if (atleast2(curpeers->peers_fe->bind_proc)) { |
| /* either it's totally stopped or too much used */ |
| if (curpeers->peers_fe->bind_proc) { |
| ha_alert("Peers section '%s': peers referenced by sections " |
| "running in different processes (%d different ones). " |
| "Check global.nbproc and all tables' bind-process " |
| "settings.\n", curpeers->id, my_popcountl(curpeers->peers_fe->bind_proc)); |
| cfgerr++; |
| } |
| stop_proxy(curpeers->peers_fe); |
| curpeers->peers_fe = NULL; |
| } |
| else { |
| /* Initializes the transport layer of the server part of all the peers belonging to |
| * <curpeers> section if required. |
| * Note that ->srv is used by the local peer of a new process to connect to the local peer |
| * of an old process. |
| */ |
| p = curpeers->remote; |
| while (p) { |
| if (p->srv) { |
| if (p->srv->use_ssl == 1 && xprt_get(XPRT_SSL) && xprt_get(XPRT_SSL)->prepare_srv) |
| cfgerr += xprt_get(XPRT_SSL)->prepare_srv(p->srv); |
| } |
| p = p->next; |
| } |
| /* Configure the SSL bindings of the local peer if required. */ |
| if (!LIST_ISEMPTY(&curpeers->peers_fe->conf.bind)) { |
| struct list *l; |
| struct bind_conf *bind_conf; |
| |
| l = &curpeers->peers_fe->conf.bind; |
| bind_conf = LIST_ELEM(l->n, typeof(bind_conf), by_fe); |
| if (bind_conf->xprt->prepare_bind_conf && |
| bind_conf->xprt->prepare_bind_conf(bind_conf) < 0) |
| cfgerr++; |
| } |
| if (!peers_init_sync(curpeers) || !peers_alloc_dcache(curpeers)) { |
| ha_alert("Peers section '%s': out of memory, giving up on peers.\n", |
| curpeers->id); |
| cfgerr++; |
| break; |
| } |
| last = &curpeers->next; |
| continue; |
| } |
| |
| /* clean what has been detected above */ |
| p = curpeers->remote; |
| while (p) { |
| pb = p->next; |
| free(p->id); |
| free(p); |
| p = pb; |
| } |
| |
| /* Destroy and unlink this curpeers section. |
| * Note: curpeers is backed up into *last. |
| */ |
| free(curpeers->id); |
| curpeers = curpeers->next; |
| /* Reset any refereance to this peers section in the list of stick-tables */ |
| for (t = stktables_list; t; t = t->next) { |
| if (t->peers.p && t->peers.p == *last) |
| t->peers.p = NULL; |
| } |
| free(*last); |
| *last = curpeers; |
| } |
| } |
| |
| for (t = stktables_list; t; t = t->next) { |
| if (t->proxy) |
| continue; |
| if (!stktable_init(t)) { |
| ha_alert("Proxy '%s': failed to initialize stick-table.\n", t->id); |
| cfgerr++; |
| } |
| } |
| |
| /* initialize stick-tables on backend capable proxies. This must not |
| * be done earlier because the data size may be discovered while parsing |
| * other proxies. |
| */ |
| for (curproxy = proxies_list; curproxy; curproxy = curproxy->next) { |
| if (curproxy->state == PR_STSTOPPED || !curproxy->table) |
| continue; |
| |
| if (!stktable_init(curproxy->table)) { |
| ha_alert("Proxy '%s': failed to initialize stick-table.\n", curproxy->id); |
| cfgerr++; |
| } |
| } |
| |
| if (mailers) { |
| struct mailers *curmailers = mailers, **last; |
| struct mailer *m, *mb; |
| |
| /* Remove all mailers sections which don't have a valid listener. |
| * This can happen when a mailers section is never referenced. |
| */ |
| last = &mailers; |
| while (*last) { |
| curmailers = *last; |
| if (curmailers->users) { |
| last = &curmailers->next; |
| continue; |
| } |
| |
| ha_warning("Removing incomplete section 'mailers %s'.\n", |
| curmailers->id); |
| |
| m = curmailers->mailer_list; |
| while (m) { |
| mb = m->next; |
| free(m->id); |
| free(m); |
| m = mb; |
| } |
| |
| /* Destroy and unlink this curmailers section. |
| * Note: curmailers is backed up into *last. |
| */ |
| free(curmailers->id); |
| curmailers = curmailers->next; |
| free(*last); |
| *last = curmailers; |
| } |
| } |
| |
| /* Update server_state_file_name to backend name if backend is supposed to use |
| * a server-state file locally defined and none has been provided */ |
| for (curproxy = proxies_list; curproxy; curproxy = curproxy->next) { |
| if (curproxy->load_server_state_from_file == PR_SRV_STATE_FILE_LOCAL && |
| curproxy->server_state_file_name == NULL) |
| curproxy->server_state_file_name = strdup(curproxy->id); |
| } |
| |
| list_for_each_entry(curr_resolvers, &dns_resolvers, list) { |
| if (LIST_ISEMPTY(&curr_resolvers->nameservers)) { |
| ha_warning("config : resolvers '%s' [%s:%d] has no nameservers configured!\n", |
| curr_resolvers->id, curr_resolvers->conf.file, |
| curr_resolvers->conf.line); |
| err_code |= ERR_WARN; |
| } |
| } |
| |
| list_for_each_entry(postparser, &postparsers, list) { |
| if (postparser->func) |
| cfgerr += postparser->func(); |
| } |
| |
| if (cfgerr > 0) |
| err_code |= ERR_ALERT | ERR_FATAL; |
| out: |
| return err_code; |
| } |
| |
| /* |
| * Registers the CFG keyword list <kwl> as a list of valid keywords for next |
| * parsing sessions. |
| */ |
| void cfg_register_keywords(struct cfg_kw_list *kwl) |
| { |
| LIST_ADDQ(&cfg_keywords.list, &kwl->list); |
| } |
| |
| /* |
| * Unregisters the CFG keyword list <kwl> from the list of valid keywords. |
| */ |
| void cfg_unregister_keywords(struct cfg_kw_list *kwl) |
| { |
| LIST_DEL(&kwl->list); |
| LIST_INIT(&kwl->list); |
| } |
| |
| /* this function register new section in the haproxy configuration file. |
| * <section_name> is the name of this new section and <section_parser> |
| * is the called parser. If two section declaration have the same name, |
| * only the first declared is used. |
| */ |
| int cfg_register_section(char *section_name, |
| int (*section_parser)(const char *, int, char **, int), |
| int (*post_section_parser)()) |
| { |
| struct cfg_section *cs; |
| |
| list_for_each_entry(cs, §ions, list) { |
| if (strcmp(cs->section_name, section_name) == 0) { |
| ha_alert("register section '%s': already registered.\n", section_name); |
| return 0; |
| } |
| } |
| |
| cs = calloc(1, sizeof(*cs)); |
| if (!cs) { |
| ha_alert("register section '%s': out of memory.\n", section_name); |
| return 0; |
| } |
| |
| cs->section_name = section_name; |
| cs->section_parser = section_parser; |
| cs->post_section_parser = post_section_parser; |
| |
| LIST_ADDQ(§ions, &cs->list); |
| |
| return 1; |
| } |
| |
| /* this function register a new function which will be called once the haproxy |
| * configuration file has been parsed. It's useful to check dependencies |
| * between sections or to resolve items once everything is parsed. |
| */ |
| int cfg_register_postparser(char *name, int (*func)()) |
| { |
| struct cfg_postparser *cp; |
| |
| cp = calloc(1, sizeof(*cp)); |
| if (!cp) { |
| ha_alert("register postparser '%s': out of memory.\n", name); |
| return 0; |
| } |
| cp->name = name; |
| cp->func = func; |
| |
| LIST_ADDQ(&postparsers, &cp->list); |
| |
| return 1; |
| } |
| |
| /* |
| * free all config section entries |
| */ |
| void cfg_unregister_sections(void) |
| { |
| struct cfg_section *cs, *ics; |
| |
| list_for_each_entry_safe(cs, ics, §ions, list) { |
| LIST_DEL(&cs->list); |
| free(cs); |
| } |
| } |
| |
| void cfg_backup_sections(struct list *backup_sections) |
| { |
| struct cfg_section *cs, *ics; |
| |
| list_for_each_entry_safe(cs, ics, §ions, list) { |
| LIST_DEL(&cs->list); |
| LIST_ADDQ(backup_sections, &cs->list); |
| } |
| } |
| |
| void cfg_restore_sections(struct list *backup_sections) |
| { |
| struct cfg_section *cs, *ics; |
| |
| list_for_each_entry_safe(cs, ics, backup_sections, list) { |
| LIST_DEL(&cs->list); |
| LIST_ADDQ(§ions, &cs->list); |
| } |
| } |
| |
| /* these are the config sections handled by default */ |
| REGISTER_CONFIG_SECTION("listen", cfg_parse_listen, NULL); |
| REGISTER_CONFIG_SECTION("frontend", cfg_parse_listen, NULL); |
| REGISTER_CONFIG_SECTION("backend", cfg_parse_listen, NULL); |
| REGISTER_CONFIG_SECTION("defaults", cfg_parse_listen, NULL); |
| REGISTER_CONFIG_SECTION("global", cfg_parse_global, NULL); |
| REGISTER_CONFIG_SECTION("userlist", cfg_parse_users, NULL); |
| REGISTER_CONFIG_SECTION("peers", cfg_parse_peers, NULL); |
| REGISTER_CONFIG_SECTION("mailers", cfg_parse_mailers, NULL); |
| REGISTER_CONFIG_SECTION("namespace_list", cfg_parse_netns, NULL); |
| REGISTER_CONFIG_SECTION("resolvers", cfg_parse_resolvers, NULL); |
| |
| /* |
| * Local variables: |
| * c-indent-level: 8 |
| * c-basic-offset: 8 |
| * End: |
| */ |