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ggsn.c: Improve logging info on link-local ipv6 addr not found 

Change-Id: I18fb952514712ff30d18c7626f84309055d3efa1
This commit is contained in:
Pau Espin 2017-12-14 11:19:10 +01:00 committed by Harald Welte
parent 7c4de0776b
commit bffc3f9012
1 changed files with 5 additions and 3 deletions
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8
ggsn/ggsn.c
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@ -194,6 +194,7 @@ int apn_start(struct apn_ctx *apn)
struct in46_prefix ipv6_tun_linklocal_ip;
struct in46_prefix *blacklist;
int blacklist_size;
int rc;
if (apn->started)
return 0;
@ -247,9 +248,10 @@ int apn_start(struct apn_ctx *apn)
}
if (apn->cfg.apn_type_mask & (APN_TYPE_IPv6|APN_TYPE_IPv4v6)) {
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));
rc = tun_ip_local_get(apn->tun.tun, &ipv6_tun_linklocal_ip, 1, IP_TYPE_IPv6_LINK);
if (rc < 1) {
LOGPAPN(LOGL_ERROR, apn, "Cannot obtain IPv6 link-local address of interface: %s\n",
rc ? strerror(errno) : "tun interface has no link-local IP assigned");
apn_stop(apn, false);
return -1;
}