bbcfc1b2dc7dc6c60435481b7638f97849ee3dde
[bbaumbach/samba-autobuild/.git] / source4 / libcli / dgram / ntlogon.c
1 /* 
2    Unix SMB/CIFS implementation.
3
4    handling for ntlogon dgram requests
5
6    Copyright (C) Andrew Tridgell 2005
7    
8    This program is free software; you can redistribute it and/or modify
9    it under the terms of the GNU General Public License as published by
10    the Free Software Foundation; either version 3 of the License, or
11    (at your option) any later version.
12    
13    This program is distributed in the hope that it will be useful,
14    but WITHOUT ANY WARRANTY; without even the implied warranty of
15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16    GNU General Public License for more details.
17    
18    You should have received a copy of the GNU General Public License
19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
20 */
21
22 #include "includes.h"
23 #include "libcli/dgram/libdgram.h"
24 #include "lib/socket/socket.h"
25 #include "libcli/resolve/resolve.h"
26 #include "librpc/gen_ndr/ndr_nbt.h"
27 #include "param/param.h"
28
29 /* 
30    send a ntlogon mailslot request 
31 */
32 NTSTATUS dgram_mailslot_ntlogon_send(struct nbt_dgram_socket *dgmsock,
33                                      enum dgram_msg_type msg_type,
34                                      struct nbt_name *dest_name,
35                                      struct socket_address *dest,
36                                      struct nbt_name *src_name,
37                                      struct nbt_ntlogon_packet *request)
38 {
39         NTSTATUS status;
40         enum ndr_err_code ndr_err;
41         DATA_BLOB blob;
42         TALLOC_CTX *tmp_ctx = talloc_new(dgmsock);
43
44         ndr_err = ndr_push_struct_blob(&blob, tmp_ctx, lp_iconv_convenience(global_loadparm), 
45                                        request,
46                                       (ndr_push_flags_fn_t)ndr_push_nbt_ntlogon_packet);
47         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
48                 talloc_free(tmp_ctx);
49                 return ndr_map_error2ntstatus(ndr_err);
50         }
51
52
53         status = dgram_mailslot_send(dgmsock, msg_type,
54                                      NBT_MAILSLOT_NTLOGON,
55                                      dest_name, dest, 
56                                      src_name, &blob);
57         talloc_free(tmp_ctx);
58         return status;
59 }
60
61
62 /* 
63    send a ntlogon mailslot reply
64 */
65 NTSTATUS dgram_mailslot_ntlogon_reply(struct nbt_dgram_socket *dgmsock,
66                                       struct nbt_dgram_packet *request,
67                                       const char *my_netbios_name,
68                                       const char *mailslot_name,
69                                       struct nbt_ntlogon_packet *reply)
70 {
71         NTSTATUS status;
72         enum ndr_err_code ndr_err;
73         DATA_BLOB blob;
74         TALLOC_CTX *tmp_ctx = talloc_new(dgmsock);
75         struct nbt_name myname;
76         struct socket_address *dest;
77
78         ndr_err = ndr_push_struct_blob(&blob, tmp_ctx, lp_iconv_convenience(global_loadparm), reply,
79                                       (ndr_push_flags_fn_t)ndr_push_nbt_ntlogon_packet);
80         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
81                 talloc_free(tmp_ctx);
82                 return ndr_map_error2ntstatus(ndr_err);
83         }
84
85         make_nbt_name_client(&myname, my_netbios_name);
86
87         dest = socket_address_from_strings(tmp_ctx, 
88                                            dgmsock->sock->backend_name, 
89                                            request->src_addr, request->src_port);
90         if (!dest) {
91                 talloc_free(tmp_ctx);
92                 return NT_STATUS_NO_MEMORY;
93         }
94
95         status = dgram_mailslot_send(dgmsock, DGRAM_DIRECT_UNIQUE, 
96                                      mailslot_name,
97                                      &request->data.msg.source_name,
98                                      dest,
99                                      &myname, &blob);
100         talloc_free(tmp_ctx);
101         return status;
102 }
103
104
105 /*
106   parse a ntlogon response. The packet must be a valid mailslot packet
107 */
108 NTSTATUS dgram_mailslot_ntlogon_parse(struct dgram_mailslot_handler *dgmslot,
109                                       TALLOC_CTX *mem_ctx,
110                                       struct nbt_dgram_packet *dgram,
111                                       struct nbt_ntlogon_packet *ntlogon)
112 {
113         DATA_BLOB data = dgram_mailslot_data(dgram);
114         enum ndr_err_code ndr_err;
115
116         ndr_err = ndr_pull_struct_blob(&data, mem_ctx, ntlogon,
117                                       (ndr_pull_flags_fn_t)ndr_pull_nbt_ntlogon_packet);
118         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
119                 NTSTATUS status = ndr_map_error2ntstatus(ndr_err);
120                 DEBUG(0,("Failed to parse ntlogon packet of length %d: %s\n",
121                          (int)data.length, nt_errstr(status)));
122                 if (DEBUGLVL(10)) {
123                         file_save("ntlogon.dat", data.data, data.length);
124                 }
125                 return status;
126         }
127         return NT_STATUS_OK;
128 }