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r12648: implement the dns proxy feature

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metze
(This used to be commit b07b201c86)
This commit is contained in:
Stefan Metzmacher 2005-12-31 11:32:55 +00:00 committed by Gerald (Jerry) Carter
parent 24c54281a9
commit c4d0b5729a
1 changed files with 56 additions and 1 deletions
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57
source4/nbt_server/wins/wins_dns_proxy.c
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@ -28,6 +28,38 @@
#include "libcli/composite/composite.h"
#include "smbd/service_task.h"
struct wins_dns_proxy_state {
struct nbt_name_socket *nbtsock;
struct nbt_name_packet *packet;
struct nbt_peer_socket src;
};
static void nbtd_wins_dns_proxy_handler(struct composite_context *creq)
{
NTSTATUS status;
struct wins_dns_proxy_state *s = talloc_get_type(creq->async.private_data,
struct wins_dns_proxy_state);
struct nbt_name *name = &s->packet->questions[0].name;
const char *address;
const char **addresses;
uint16_t nb_flags = 0; /* TODO: ... */
status = resolve_name_recv(creq, s->packet, &address);
if (!NT_STATUS_IS_OK(status)) {
goto notfound;
}
addresses = str_list_add(NULL, address);
talloc_steal(s->packet, addresses);
if (!addresses) goto notfound;
nbtd_name_query_reply(s->nbtsock, s->packet, &s->src, name,
0, nb_flags, addresses);
return;
notfound:
nbtd_negative_name_query_reply(s->nbtsock, s->packet, &s->src);
}
/*
dns proxy query a name
*/
@ -35,6 +67,29 @@ void nbtd_wins_dns_proxy_query(struct nbt_name_socket *nbtsock,
struct nbt_name_packet *packet,
const struct nbt_peer_socket *src)
{
/* TODO: add a real implementation here */
struct nbt_name *name = &packet->questions[0].name;
struct nbtd_interface *iface = talloc_get_type(nbtsock->incoming.private,
struct nbtd_interface);
struct wins_dns_proxy_state *s;
struct composite_context *creq;
const char *methods[] = {
"host",
NULL
};
s = talloc(nbtsock, struct wins_dns_proxy_state);
if (!s) goto failed;
s->nbtsock = nbtsock;
s->packet = talloc_steal(s, packet);
s->src = *src;
talloc_steal(s, src->addr);
creq = resolve_name_send(name, iface->nbtsrv->task->event_ctx, methods);
if (!creq) goto failed;
creq->async.fn = nbtd_wins_dns_proxy_handler;
creq->async.private_data= s;
return;
failed:
nbtd_negative_name_query_reply(nbtsock, packet, src);
}