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/*
Unix SMB/CIFS implementation.
handling for netlogon dgram requests
Copyright (C) Andrew Tridgell 2005
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "libcli/dgram/libdgram.h"
#include "lib/socket/socket.h"
#include "libcli/resolve/resolve.h"
#include "librpc/gen_ndr/ndr_nbt.h"
#include "param/param.h"
/*
send a netlogon mailslot request
*/
NTSTATUS dgram_mailslot_netlogon_send(struct nbt_dgram_socket *dgmsock,
struct nbt_name *dest_name,
struct socket_address *dest,
struct nbt_name *src_name,
struct nbt_netlogon_packet *request)
{
NTSTATUS status;
enum ndr_err_code ndr_err;
DATA_BLOB blob;
TALLOC_CTX *tmp_ctx = talloc_new(dgmsock);
ndr_err = ndr_push_struct_blob(&blob, tmp_ctx, request,
(ndr_push_flags_fn_t)ndr_push_nbt_netlogon_packet);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
talloc_free(tmp_ctx);
return ndr_map_error2ntstatus(ndr_err);
}
status = dgram_mailslot_send(dgmsock, DGRAM_DIRECT_UNIQUE,
NBT_MAILSLOT_NETLOGON,
dest_name, dest,
src_name, &blob);
talloc_free(tmp_ctx);
return status;
}
/*
send a netlogon mailslot reply
*/
NTSTATUS dgram_mailslot_netlogon_reply(struct nbt_dgram_socket *dgmsock,
struct nbt_dgram_packet *request,
const char *my_netbios_name,
const char *mailslot_name,
struct nbt_netlogon_packet *reply)
{
NTSTATUS status;
enum ndr_err_code ndr_err;
DATA_BLOB blob;
TALLOC_CTX *tmp_ctx = talloc_new(dgmsock);
struct nbt_name myname;
struct socket_address *dest;
ndr_err = ndr_push_struct_blob(&blob, tmp_ctx, reply,
(ndr_push_flags_fn_t)ndr_push_nbt_netlogon_packet);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
talloc_free(tmp_ctx);
return ndr_map_error2ntstatus(ndr_err);
}
make_nbt_name_client(&myname, my_netbios_name);
dest = socket_address_from_strings(tmp_ctx, dgmsock->sock->backend_name,
request->src_addr, request->src_port);
if (!dest) {
talloc_free(tmp_ctx);
return NT_STATUS_NO_MEMORY;
}
status = dgram_mailslot_send(dgmsock, DGRAM_DIRECT_UNIQUE,
mailslot_name,
&request->data.msg.source_name,
dest,
&myname, &blob);
talloc_free(tmp_ctx);
return status;
}
/*
parse a netlogon response. The packet must be a valid mailslot packet
*/
NTSTATUS dgram_mailslot_netlogon_parse(struct dgram_mailslot_handler *dgmslot,
TALLOC_CTX *mem_ctx,
struct nbt_dgram_packet *dgram,
struct nbt_netlogon_packet *netlogon)
{
DATA_BLOB data = dgram_mailslot_data(dgram);
enum ndr_err_code ndr_err;
ndr_err = ndr_pull_struct_blob(&data, mem_ctx, netlogon,
(ndr_pull_flags_fn_t)ndr_pull_nbt_netlogon_packet);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
NTSTATUS status = ndr_map_error2ntstatus(ndr_err);
DEBUG(0,("Failed to parse netlogon packet of length %d: %s\n",
(int)data.length, nt_errstr(status)));
if (DEBUGLVL(10)) {
file_save("netlogon.dat", data.data, data.length);
}
return status;
}
return NT_STATUS_OK;
}
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