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-rw-r--r--sysdep/linux/netlink/netlink.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/sysdep/linux/netlink/netlink.c b/sysdep/linux/netlink/netlink.c
index 70abdd7..1c9d977 100644
--- a/sysdep/linux/netlink/netlink.c
+++ b/sysdep/linux/netlink/netlink.c
@@ -321,6 +321,7 @@ nl_parse_addr(struct nlmsghdr *h)
int new = h->nlmsg_type == RTM_NEWADDR;
struct ifa ifa;
struct iface *ifi;
+ int scope;
if (!(i = nl_checkin(h, sizeof(*i))) || !nl_parse_attrs(IFA_RTA(i), a, sizeof(a)))
return;
@@ -355,6 +356,7 @@ nl_parse_addr(struct nlmsghdr *h)
ifa.iface = ifi;
if (i->ifa_flags & IFA_F_SECONDARY)
ifa.flags |= IA_SECONDARY;
+
/* IFA_LOCAL can be unset for IPv6 interfaces */
memcpy(&ifa.ip, RTA_DATA(a[IFA_LOCAL] ? : a[IFA_ADDRESS]), sizeof(ifa.ip));
ipa_ntoh(ifa.ip);
@@ -389,6 +391,14 @@ nl_parse_addr(struct nlmsghdr *h)
ifa.prefix = ipa_and(ifa.ip, netmask);
}
+ scope = ipa_classify(ifa.ip);
+ if (scope < 0)
+ {
+ log(L_ERR "KIF: Invalid interface address %I", ifa.ip);
+ return;
+ }
+ ifa.scope = scope & IADDR_SCOPE_MASK;
+
DBG("KIF: IF%d(%s): %s IPA %I, flg %x, net %I/%d, brd %I, opp %I\n",
ifi->index, ifi->name,
new ? "added" : "removed",
@@ -664,7 +674,7 @@ nl_parse_route(struct nlmsghdr *h, int scan)
memcpy(&ra.gw, RTA_DATA(a[RTA_GATEWAY]), sizeof(ra.gw));
ipa_ntoh(ra.gw);
ng = neigh_find(&p->p, &ra.gw, 0);
- if (ng)
+ if (ng && ng->scope)
ra.iface = ng->iface;
else
/* FIXME: Remove this warning? Handle it somehow... */