static bool if_getaddr_handler(const char *ifname,
const struct sa *sa, void *arg)
{
struct ifentry *ife = arg;
/* Match name of interface? */
if (str_isset(ife->ifname) && 0 != str_casecmp(ife->ifname, ifname))
return false;
if (!sa_isset(sa, SA_ADDR))
return false;
#if 1
/* skip loopback and link-local IP */
if (sa_is_loopback(sa) || sa_is_linklocal(sa))
return false;
#endif
/* Match address family */
if (ife->af != sa_af(sa))
return false;
/* Match - copy address */
sa_cpy(ife->ip, sa);
ife->found = true;
return ife->found;
}
static bool interface_handler(const char *ifname, const struct sa *addr,
void *arg)
{
struct agent *ag = arg;
int err = 0;
/* Skip loopback and link-local addresses */
if (ag->cli->param.skip_local) {
if (sa_is_loopback(addr) || sa_is_linklocal(addr))
return false;
}
if (str_isset(ag->cli->param.ifname) &&
str_casecmp(ag->cli->param.ifname, ifname)) {
return false;
}
switch (sa_af(addr)) {
case AF_INET:
if (!ag->cli->param.use_ipv4)
return false;
break;
case AF_INET6:
if (!ag->cli->param.use_ipv6)
return false;
break;
}
/* NOTE: on some machines an interface is listed twice. */
if (interface_find(ag, addr)) {
re_printf("ignoring duplicated interface (%s %j)\n",
ifname, addr);
return false;
}
ag->interfacev[ag->interfacec++] = *addr;
re_printf("interface: %s %j\n", ifname, addr);
if (ag->cli->param.use_udp)
err |= add_candidate(ag, addr, IPPROTO_UDP, 0, ifname);
if (ag->cli->param.use_tcp) {
err |= add_candidate(ag, addr, IPPROTO_TCP, ICE_TCP_SO,
ifname);
err |= add_candidate(ag, addr, IPPROTO_TCP,
ag->client ? ICE_TCP_ACTIVE : ICE_TCP_PASSIVE,
ifname);
}
return err != 0;
}
static bool linklocal_handler(const char *ifname, const struct sa *sa,
void *arg)
{
void **argv = arg;
int af = *(int *)argv[1];
if (argv[0] && 0 != str_casecmp(argv[0], ifname))
return false;
if (af != AF_UNSPEC && af != sa_af(sa))
return false;
if (sa_is_linklocal(sa)) {
*((struct sa *)argv[2]) = *sa;
return true;
}
return false;
}