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/* $Id$ */
/*
* Copyright (C)2003-2007 Benny Prijono <benny@prijono.org>
*
* 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.
*
* This program 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
*/
#include <pj/ip_helper.h>
#include <pj/addr_resolv.h>
#include <pj/assert.h>
#include <pj/errno.h>
#include <pj/string.h>
#include <pj/compat/socket.h>
static pj_status_t dummy_enum_ip_interface(int af,
unsigned *p_cnt,
pj_sockaddr ifs[])
{
pj_status_t status;
PJ_ASSERT_RETURN(p_cnt && *p_cnt > 0 && ifs, PJ_EINVAL);
pj_bzero(ifs, sizeof(ifs[0]) * (*p_cnt));
/* Just get one default route */
status = pj_getdefaultipinterface(af, &ifs[0]);
if (status != PJ_SUCCESS)
return status;
*p_cnt = 1;
return PJ_SUCCESS;
}
#ifdef SIOCGIFCONF
static pj_status_t sock_enum_ip_interface(int af,
unsigned *p_cnt,
pj_sockaddr ifs[])
{
pj_sock_t sock;
char buf[512];
struct ifconf ifc;
struct ifreq *ifr;
int i, count;
pj_status_t status;
PJ_ASSERT_RETURN(af==PJ_AF_INET || af==PJ_AF_INET6, PJ_EINVAL);
status = pj_sock_socket(af, PJ_SOCK_DGRAM, 0, &sock);
if (status != PJ_SUCCESS)
return status;
/* Query available interfaces */
ifc.ifc_len = sizeof(buf);
ifc.ifc_buf = buf;
if (ioctl(sock, SIOCGIFCONF, &ifc) < 0) {
int oserr = pj_get_netos_error();
pj_sock_close(sock);
return PJ_RETURN_OS_ERROR(oserr);
}
/* Done with socket */
pj_sock_close(sock);
/* Interface interfaces */
ifr = (struct ifreq*) ifc.ifc_req;
count = ifc.ifc_len / sizeof(struct ifreq);
if (count > *p_cnt)
count = *p_cnt;
else
*p_cnt = count;
for (i=0; i<count; ++i) {
struct ifreq *itf = &ifr[i];
struct sockaddr *ad = &itf->ifr_addr;
ifs[i].addr.sa_family = ad->sa_family;
pj_memcpy(pj_sockaddr_get_addr(&ifs[i]),
pj_sockaddr_get_addr(ad),
pj_sockaddr_get_addr_len(ad));
}
return PJ_SUCCESS;
}
#endif /* SIOCGIFCONF */
/*
* Enumerate the local IP interface currently active in the host.
*/
PJ_DEF(pj_status_t) pj_enum_ip_interface(int af,
unsigned *p_cnt,
pj_sockaddr ifs[])
{
#ifdef SIOCGIFCONF
if (sock_enum_ip_interface(af, p_cnt, ifs) == PJ_SUCCESS)
return PJ_SUCCESS;
#endif
return dummy_enum_ip_interface(af, p_cnt, ifs);
}
/*
* Enumerate the IP routing table for this host.
*/
PJ_DEF(pj_status_t) pj_enum_ip_route(unsigned *p_cnt,
pj_ip_route_entry routes[])
{
pj_sockaddr itf;
pj_status_t status;
PJ_ASSERT_RETURN(p_cnt && *p_cnt > 0 && routes, PJ_EINVAL);
pj_bzero(routes, sizeof(routes[0]) * (*p_cnt));
/* Just get one default route */
status = pj_getdefaultipinterface(PJ_AF_INET, &itf);
if (status != PJ_SUCCESS)
return status;
routes[0].ipv4.if_addr.s_addr = itf.ipv4.sin_addr.s_addr;
routes[0].ipv4.dst_addr.s_addr = 0;
routes[0].ipv4.mask.s_addr = 0;
*p_cnt = 1;
return PJ_SUCCESS;
}
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