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/*
* include/haproxy/dns.h
* This file provides functions related to DNS protocol
*
* Copyright (C) 2014 Baptiste Assmann <bedis9@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, version 2.1
* exclusively.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _HAPROXY_RESOLVERS_H
#define _HAPROXY_RESOLVERS_H
#include <haproxy/resolvers-t.h>
struct proxy;
struct server;
struct stconn;
struct act_rule;
struct list;
extern struct list sec_resolvers;
extern unsigned int resolv_failed_resolutions;
struct resolvers *find_resolvers_by_id(const char *id);
struct resolv_srvrq *find_srvrq_by_name(const char *name, struct proxy *px);
struct resolv_srvrq *new_resolv_srvrq(struct server *srv, char *fqdn);
struct resolv_answer_item *find_srvrq_answer_record(const struct resolv_requester *requester);
int resolv_str_to_dn_label(const char *str, int str_len, char *dn, int dn_len);
int resolv_dn_label_to_str(const char *dn, int dn_len, char *str, int str_len);
int resolv_hostname_validation(const char *string, char **err);
int resolv_get_ip_from_response(struct resolv_response *r_res,
struct resolv_options *resolv_opts, void *currentip,
short currentip_sin_family,
void **newip, short *newip_sin_family,
struct server *owner);
int resolv_link_resolution(void *requester, int requester_type, int requester_locked);
void resolv_unlink_resolution(struct resolv_requester *requester);
void resolv_detach_from_resolution_answer_items(struct resolv_resolution *res, struct resolv_requester *req);
void resolv_trigger_resolution(struct resolv_requester *requester);
enum act_parse_ret resolv_parse_do_resolve(const char **args, int *orig_arg, struct proxy *px, struct act_rule *rule, char **err);
int check_action_do_resolve(struct act_rule *rule, struct proxy *px, char **err);
int stats_dump_resolvers(struct stconn *sc,
struct field *stats, size_t stats_count,
struct list *stat_modules);
void resolv_stats_clear_counters(int clrall, struct list *stat_modules);
int resolv_allocate_counters(struct list *stat_modules);
int dns_dgram_init(struct dns_nameserver *ns, struct sockaddr_storage *sk);
int resolvers_create_default();
#endif // _HAPROXY_RESOLVER_H
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