tun: Convert tun_ipv6_linklocal_get to be more generic
Add support for IPv4 and IPv6 global IPs. Also return the prefix length
of the IP address by using a in46_prefix.
Change-Id: I277af191dc611b6bbcb83479f4ae338083740322
diff --git a/ggsn/ggsn.c b/ggsn/ggsn.c
index 29d8473..ff760cf 100644
--- a/ggsn/ggsn.c
+++ b/ggsn/ggsn.c
@@ -149,6 +149,7 @@
/* actually start the APN with its current config */
int apn_start(struct apn_ctx *apn)
{
+ struct in46_prefix ipv6_tun_linklocal_ip;
if (apn->started)
return 0;
@@ -201,12 +202,13 @@
}
if (apn->cfg.apn_type_mask & (APN_TYPE_IPv6|APN_TYPE_IPv4v6)) {
- if (tun_ipv6_linklocal_get(apn->tun.tun, &apn->v6_lladdr) < 0) {
+ if (tun_ip_local_get(apn->tun.tun, &ipv6_tun_linklocal_ip, 1, IP_TYPE_IPv6_LINK) < 1) {
LOGPAPN(LOGL_ERROR, apn, "Cannot obtain IPv6 link-local address of "
"interface: %s\n", strerror(errno));
apn_stop(apn, false);
return -1;
}
+ apn->v6_lladdr = ipv6_tun_linklocal_ip.addr.v6;
}
/* set back-pointer from TUN device to APN */