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kamailio/proxy.h

105 lines
2.5 KiB

/*
* $Id$
*
*
* Copyright (C) 2001-2003 FhG Fokus
*
* This file is part of ser, a free SIP server.
*
* ser 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
*
* For a license to use the ser software under conditions
* other than those described here, or to purchase support for this
* software, please contact iptel.org by e-mail at the following addresses:
* info@iptel.org
*
* ser 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* History:
* -------
* 2003-02-13 added proto to struct proxy_l & to *_proxy functions (andrei)
*/
#ifndef proxy_h
#define proxy_h
#include <netdb.h>
#include "ip_addr.h"
#include "str.h"
#include "config.h"
struct proxy_l{
struct proxy_l* next;
str name; /* original name */
struct hostent host; /* addresses */
unsigned short port;
unsigned short reserved; /*align*/
int proto;
/* socket ? */
int addr_idx; /* crt. addr. idx. */
int ok; /* 0 on error */
/*statistics*/
int tx;
int tx_bytes;
int errors;
};
extern struct proxy_l* proxies;
struct proxy_l* add_proxy(str* name, unsigned short port, int proto);
struct proxy_l* mk_proxy(str* name, unsigned short port, int proto);
struct proxy_l* mk_shm_proxy(str* name, unsigned short port, int proto);
struct proxy_l* mk_proxy_from_ip(struct ip_addr* ip, unsigned short port,
int proto);
void free_proxy(struct proxy_l* p);
void free_shm_proxy(struct proxy_l* p);
/* returns 0 on success, -1 on error (unknown af/bug) */
inline static int proxy2su(union sockaddr_union* su, struct proxy_l* p)
{
/* if error try next ip address if possible */
if (p->ok==0){
if (p->host.h_addr_list[p->addr_idx+1])
p->addr_idx++;
else p->addr_idx=0;
p->ok=1;
}
return hostent2su(su, &p->host, p->addr_idx,
(p->port)?p->port:((p->proto==PROTO_TLS)?SIPS_PORT:SIP_PORT) );
}
/* mark as proxy either as ok (err>=0) or as bad (err<0) */
inline static void proxy_mark(struct proxy_l* p, int err)
{
if (err<0){
p->errors++;
p->ok=0;
}else{
p->tx++;
}
}
#endif