int starter_ifaces_load (char **ifaces, unsigned int omtu, int nat_t)
{
char *tmp_phys, *phys;
unsigned int n;
char **i;
int sock;
int j, found;
int ret = 0;
starter_log(LOG_LEVEL_DEBUG, "starter_ifaces_load()");
sock = safe_socket(AF_INET, SOCK_DGRAM, 0);
if (sock < 0) return -1;
for (j=0; j<N_IPSEC_IF; j++) {
found = 0;
for (i=ifaces; i && *i; i++) {
if ((valid_str(*i, &n, &tmp_phys)) && (tmp_phys) &&
(n>=0) && (n<N_IPSEC_IF)) {
if (n==j) {
if (found) {
starter_log(LOG_LEVEL_ERR,
"ignoring duplicate entry for interface ipsec%d",
j);
}
else {
found++;
phys = starter_find_physical_iface(sock, tmp_phys);
if (phys) {
ret += _iface_up (sock, &(_ipsec_if[n]), phys,
omtu, nat_t);
}
else {
ret += _iface_down (sock, &(_ipsec_if[n]));
}
}
}
}
else if (j==0) {
/**
* Only log in the first loop
*/
starter_log(LOG_LEVEL_ERR, "ignoring invalid interface '%s'",
*i);
}
}
if (!found)
ret += _iface_down (sock, &(_ipsec_if[j]));
}
close(sock);
return ret; /* = number of changes - 'whack --listen' if > 0 */
}
int starter_iface_find(char *iface, int af, ip_address *dst, ip_address *nh)
{
char *phys;
struct ifreq req;
struct sockaddr_in *sa = (struct sockaddr_in *)(&req.ifr_addr);
int sock;
if (!iface) return -1;
sock = safe_socket(af, SOCK_DGRAM, 0);
if (sock < 0) return -1;
phys = starter_find_physical_iface(sock, iface);
if (!phys) goto failed;
strncpy(req.ifr_name, phys, IFNAMSIZ);
if (ioctl(sock, SIOCGIFFLAGS, &req)!=0) goto failed;
if (!(req.ifr_flags & IFF_UP)) goto failed;
if ((req.ifr_flags & IFF_POINTOPOINT) && (nh) &&
(ioctl(sock, SIOCGIFDSTADDR, &req)==0)) {
if (sa->sin_family == af) {
initaddr((const void *)&sa->sin_addr,
sizeof(struct in_addr), af, nh);
}
}
if ((dst) && (ioctl(sock, SIOCGIFADDR, &req)==0)) {
if (sa->sin_family == af) {
initaddr((const void *)&sa->sin_addr,
sizeof(struct in_addr), af, dst);
}
}
close(sock);
return 0;
failed:
close(sock);
return -1;
}
