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861d1111c3
A bit similar to what was done for sample fetch functions and converters, we now store with each action keyword the location of the initcall when they're registered this way. Since there are many functions only calling a LIST_APPEND() (one per ruleset), we now implement a dedicated function to store the context in all keywords before doing the append. However that's not sufficient, because keywords are not mandatory for actions, so we cannot safely rely on rule->kw. Thus we then set the exec_ctx per rule when they are all scanned in check_action_rules(), based on the keyword if it exists, otherwise we make a context from the action_ptr function if it is set (it should). Finally at all call points we now check rule->exec_ctx.
134 lines
4.0 KiB
C
134 lines
4.0 KiB
C
/*
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* include/haproxy/action.h
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* This file contains actions prototypes.
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*
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* Copyright (C) 2000-2010 Willy Tarreau - w@1wt.eu
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation, version 2.1
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* exclusively.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _HAPROXY_ACTION_H
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#define _HAPROXY_ACTION_H
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#include <stdio.h>
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#include <haproxy/action-t.h>
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#include <haproxy/cfgparse.h>
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#include <haproxy/list.h>
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#include <haproxy/sample.h>
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struct resolv_requester;
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struct dns_counters;
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int act_resolution_cb(struct resolv_requester *requester, struct dns_counters *counters);
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int act_resolution_error_cb(struct resolv_requester *requester, int error_code);
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const char *action_suggest(const char *word, const struct list *keywords, const char **extra);
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void free_act_rule(struct act_rule *rule);
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void act_add_list(struct list *head, struct action_kw_list *kw_list);
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static inline struct action_kw *action_lookup(struct list *keywords, const char *kw)
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{
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struct action_kw_list *kw_list;
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struct action_kw *best = NULL;
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int len, bestlen = 0;
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int i;
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if (LIST_ISEMPTY(keywords))
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return NULL;
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list_for_each_entry(kw_list, keywords, list) {
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for (i = 0; kw_list->kw[i].kw != NULL; i++) {
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if ((kw_list->kw[i].flags & KWF_MATCH_PREFIX) &&
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(len = strlen(kw_list->kw[i].kw)) > bestlen &&
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strncmp(kw, kw_list->kw[i].kw, len) == 0) {
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if (len > bestlen) {
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bestlen = len;
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best = &kw_list->kw[i];
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}
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}
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if (strcmp(kw, kw_list->kw[i].kw) == 0)
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return &kw_list->kw[i];
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}
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}
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return best;
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}
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static inline void action_build_list(struct list *keywords,
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struct buffer *chk)
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{
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struct action_kw_list *kw_list;
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int i;
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char *p;
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char *end;
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int l;
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p = chk->area;
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end = p + chk->size - 1;
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list_for_each_entry(kw_list, keywords, list) {
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for (i = 0; kw_list->kw[i].kw != NULL; i++) {
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l = snprintf(p, end - p, "'%s%s', ", kw_list->kw[i].kw, (kw_list->kw[i].flags & KWF_MATCH_PREFIX) ? "(*)" : "");
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if (l > end - p)
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continue;
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p += l;
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}
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}
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if (p > chk->area)
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*(p-2) = '\0';
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else
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*p = '\0';
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}
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/* Check an action ruleset validity. It returns the number of error encountered
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* and err_code is updated if a warning is emitted.
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*/
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int check_action_rules(struct list *rules, struct proxy *px, int *err_code);
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/* Find and check the target table used by an action track-sc*. This
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* function should be called during the configuration validity check.
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*
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* The function returns 1 in success case, otherwise, it returns 0 and err is
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* filled.
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*/
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int check_trk_action(struct act_rule *rule, struct proxy *px, char **err);
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/* check a capture rule. This function should be called during the configuration
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* validity check.
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*
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* The function returns 1 in success case, otherwise, it returns 0 and err is
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* filled.
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*/
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int check_capture(struct act_rule *rule, struct proxy *px, char **err);
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int cfg_parse_rule_set_timeout(const char **args, int idx, struct act_rule *rule,
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struct proxy *px, char **err);
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static inline void release_timeout_action(struct act_rule *rule)
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{
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release_sample_expr(rule->arg.timeout.expr);
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}
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/*
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* Release expr_int rule argument when action is no longer used
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*/
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static inline void release_expr_int_action(struct act_rule *rule)
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{
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release_sample_expr(rule->arg.expr_int.expr);
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}
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struct act_rule *new_act_rule(enum act_from from, const char *file, int linenum);
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void free_act_rules(struct list *rules);
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void dump_act_rules(const struct list *rules, const char *pfx);
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#endif /* _HAPROXY_ACTION_H */
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