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-rw-r--r--source4/nbt_server/packet.c22
1 files changed, 16 insertions, 6 deletions
diff --git a/source4/nbt_server/packet.c b/source4/nbt_server/packet.c
index c5ed0b41ce..bb9e2459b1 100644
--- a/source4/nbt_server/packet.c
+++ b/source4/nbt_server/packet.c
@@ -38,7 +38,8 @@ void nbtd_bad_packet(struct nbt_name_packet *packet,
/*
- see if an incoming packet is from one of our own interfaces
+ see if an incoming packet is a broadcast packet from one of our own
+ interfaces
*/
BOOL nbtd_self_packet(struct nbt_name_socket *nbtsock,
struct nbt_name_packet *packet,
@@ -48,20 +49,29 @@ BOOL nbtd_self_packet(struct nbt_name_socket *nbtsock,
struct nbt_interface);
struct nbt_server *nbtsrv = iface->nbtsrv;
+ /* if its not a broadcast then its not considered a self packet */
+ if (!(packet->operation & NBT_FLAG_BROADCAST)) {
+ return False;
+ }
+
+ /* if its not from the nbt port, then it wasn't a broadcast from us */
if (src_port != lp_nbt_port()) {
return False;
}
+ /* this uses the fact that iface->nbtsock is our non-broadcast
+ listen address */
+ if (iface->nbtsock == nbtsock) {
+ return False;
+ }
+
+ /* we have to loop over our interface list, seeing if its from
+ one of our own interfaces */
for (iface=nbtsrv->interfaces;iface;iface=iface->next) {
if (strcmp(src_address, iface->ip_address) == 0) {
return True;
}
}
- if (nbtsrv->bcast_interface &&
- strcmp(src_address, nbtsrv->bcast_interface->ip_address) == 0) {
- return True;
- }
-
return False;
}