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FossilOrigin-Name: 485328d348afe5c99c0186785890dd51d5c4c9be1f2ec4efc66282ac99e1d462
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7u83@mail.ru 2016-03-12 22:29:25 +00:00
parent a01e743867
commit 280110cff5
2 changed files with 153 additions and 0 deletions
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102
src/cw/cw_out_wtp_ip_address.c Normal file
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/*
This file is part of libcapwap.
libcapwap 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 3 of the License, or
(at your option) any later version.
libcapwap 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file
* @brief Implementation output handler of capwap cw_out_local_ip_address
*/
#include <errno.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <string.h>
#include "cw.h"
#include "capwap_items.h"
#include "dbg.h"
#include "log.h"
#include "conn.h"
/**
* Output handler for Capwap Local IP Address message element.
*
* @param conn Connection object
* @param action Pointer to action which called this handler
* @param dst Destination buffer
*
* This handler determines the IP address from #conn->sock.
* It can deal both with IPv4 and IPv6 sockets.
*
*/
int cw_out_capwap_local_ip_address(struct conn *conn, struct cw_action_out *action,
uint8_t * dst)
{
return cw_put_local_ip_address(conn->sock,dst,CW_ELEM_CAPWAP_LOCAL_IPV4_ADDRESS,CW_ELEM_CAPWAP_LOCAL_IPV6_ADDRESS);
struct sockaddr_storage a;
socklen_t alen = sizeof(struct sockaddr_storage);
int rc = getsockname(conn->sock, (struct sockaddr *) &a, &alen);
if (rc != 0){
cw_log(LOG_ERR,"Can't determine sock IP address - %s\n",strerror(errno));
return 0;
}
int id;
switch (((struct sockaddr *) &a)->sa_family) {
case AF_INET:
{
struct sockaddr_in *sain = (struct sockaddr_in *) &a;
id = CW_ELEM_CAPWAP_LOCAL_IPV4_ADDRESS;
/* if (conn->capwap_mode == CW_MODE_CISCO)
id = CW_ELEM_WTP_IPV4_IP_ADDRESS;
else
id = CW_ELEM_CAPWAP_LOCAL_IPV4_ADDRESS;
*/
cw_put_data(dst + 4, (uint8_t *) & sain->sin_addr, 4);
return 4 + cw_put_elem_hdr(dst, id, 4);
}
case AF_INET6:
{
id = CW_ELEM_CAPWAP_LOCAL_IPV6_ADDRESS;
/* if (conn->capwap_mode == CW_MODE_CISCO)
id = CW_ELEM_WTP_IPV6_IP_ADDRESS;
else
id = CW_ELEM_CAPWAP_LOCAL_IPV6_ADDRESS;
*/
struct sockaddr_in6 *sain = (struct sockaddr_in6 *) &a;
cw_put_data(dst + 4, (uint8_t *) & sain->sin6_addr, 16);
return 16 + cw_put_elem_hdr(dst, id, 16);
}
}
cw_log(DBG_MSG_ERR, "Can't determine CAPWAP Local IP Adress");
return 0;
}

51
src/cw/cw_put_local_ip_address.c Normal file
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#include <errno.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include "log.h"
#include "dbg.h"
#include "cw.h"
int cw_put_local_ip_adress(int sock, uint8_t *dst, int ipv4elem_id, int ipv6elem_id)
{
struct sockaddr_storage a;
socklen_t alen = sizeof(struct sockaddr_storage);
int rc = getsockname(sock, (struct sockaddr *) &a, &alen);
if (rc != 0){
cw_log(LOG_ERR,"Can't determine sock IP address - %s\n",strerror(errno));
return 0;
}
int id;
switch (((struct sockaddr *) &a)->sa_family) {
case AF_INET:
{
struct sockaddr_in *sain = (struct sockaddr_in *) &a;
id = ipv4elem_id;
cw_put_data(dst + 4, (uint8_t *) & sain->sin_addr, 4);
return 4 + cw_put_elem_hdr(dst, id, 4);
}
case AF_INET6:
{
id = ipv6elem_id;
struct sockaddr_in6 *sain = (struct sockaddr_in6 *) &a;
cw_put_data(dst + 4, (uint8_t *) & sain->sin6_addr, 16);
return 16 + cw_put_elem_hdr(dst, id, 16);
}
}
cw_log(DBG_MSG_ERR, "Can't determine CAPWAP Local IP Adress");
return 0;
}