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r13007: let our winsclient code register multihomed records with

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our winsserver and don't defend our local name against
our own register packets...

this won gave quite confusing logmessages...

metze
This commit is contained in:
Stefan Metzmacher 2006-01-18 16:36:53 +00:00 committed by Gerald (Jerry) Carter
parent f7481a4c8c
commit 31ce24d7b1
3 changed files with 38 additions and 14 deletions
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9
source/nbt_server/defense.c
View File

@ -41,6 +41,15 @@ void nbtd_request_defense(struct nbt_name_socket *nbtsock,
struct nbtd_interface *iface = talloc_get_type(nbtsock->incoming.private,
struct nbtd_interface);
/*
* if the packet comes from one of our interfaces
* it must be our winsclient trying to reach the winsserver
*/
if (nbtd_self_packet(nbtsock, packet, src)) {
nbtd_winsserver_request(nbtsock, packet, src);
return;
}
NBTD_ASSERT_PACKET(packet, src, packet->qdcount == 1);
NBTD_ASSERT_PACKET(packet, src, packet->arcount == 1);
NBTD_ASSERT_PACKET(packet, src,

4
source/nbt_server/interfaces.c
View File

@ -42,8 +42,8 @@ static void nbtd_request_handler(struct nbt_name_socket *nbtsock,
nbtsrv->stats.total_received++;
/* see if its from one of our own interfaces - if so, then ignore it */
if (nbtd_self_packet(nbtsock, packet, src)) {
DEBUG(10,("Ignoring self packet from %s:%d\n", src->addr, src->port));
if (nbtd_self_packet_and_bcast(nbtsock, packet, src)) {
DEBUG(10,("Ignoring bcast self packet from %s:%d\n", src->addr, src->port));
return;
}

39
source/nbt_server/packet.c
View File

@ -41,6 +41,33 @@ void nbtd_bad_packet(struct nbt_name_packet *packet,
see if an incoming packet is a broadcast packet from one of our own
interfaces
*/
BOOL nbtd_self_packet_and_bcast(struct nbt_name_socket *nbtsock,
struct nbt_name_packet *packet,
const struct socket_address *src)
{
struct nbtd_interface *iface = talloc_get_type(nbtsock->incoming.private,
struct nbtd_interface);
/* if its not a broadcast then its not considered a self packet */
if (!(packet->operation & NBT_FLAG_BROADCAST)) {
return False;
}
/*
* this uses the fact that iface->nbtsock is the unicast listen address
* if the interface isn't the global bcast interface
*
* so if the request was directed to the unicast address it isn't a broadcast
* message
*/
if (iface->nbtsock == nbtsock &&
iface != iface->nbtsrv->bcast_interface) {
return False;
}
return nbtd_self_packet(nbtsock, packet, src);
}
BOOL nbtd_self_packet(struct nbt_name_socket *nbtsock,
struct nbt_name_packet *packet,
const struct socket_address *src)
@ -49,23 +76,11 @@ BOOL nbtd_self_packet(struct nbt_name_socket *nbtsock,
struct nbtd_interface);
struct nbtd_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 &&
iface != iface->nbtsrv->bcast_interface) {
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) {