OSPF: Fix handling of NSSA option flags

[thirdparty/bird.git] / proto / ospf / dbdes.c

diff --git a/proto/ospf/dbdes.c b/proto/ospf/dbdes.c
index b39595d98bb21e2054bd2d1c40a5c7c0ff21f6cb..5a5f76f8858615045c3304d0b2b83ba185d7f4b4 100644 (file)
--- a/proto/ospf/dbdes.c
+++ b/proto/ospf/dbdes.c
@@ -127,7 +127,7 @@ ospf_prepare_dbdes(struct ospf_proto *p, struct ospf_neighbor *n)
   {
     struct ospf_dbdes2_packet *ps = (void *) pkt;
     ps->iface_mtu = htons(iface_mtu);
-    ps->options = ifa->oa->options | OPT_O;
+    ps->options = ifa->oa->options & DBDES2_OPT_MASK;
     ps->imms = 0;      /* Will be set later */
     ps->ddseq = htonl(n->dds);
     length = sizeof(struct ospf_dbdes2_packet);
@@ -135,7 +135,8 @@ ospf_prepare_dbdes(struct ospf_proto *p, struct ospf_neighbor *n)
   else /* OSPFv3 */
   {
     struct ospf_dbdes3_packet *ps = (void *) pkt;
-    ps->options = htonl(ifa->oa->options | (ifa->autype == OSPF_AUTH_CRYPT ? OPT_AT : 0));
+    u32 options = ifa->oa->options | (ifa->autype == OSPF_AUTH_CRYPT ? OPT_AT : 0);
+    ps->options = htonl(options & DBDES3_OPT_MASK);
     ps->iface_mtu = htons(iface_mtu);
     ps->padding = 0;
     ps->imms = 0;      /* Will be set later */