1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
/*
Unix SMB/CIFS implementation.
NBT datagram netlogon server
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 2 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "dlinklist.h"
#include "nbt_server/nbt_server.h"
#include "smbd/service_task.h"
#include "lib/socket/socket.h"
/*
reply to a GETDC request
*/
static void nbtd_netlogon_getdc(struct dgram_mailslot_handler *dgmslot,
struct nbt_dgram_packet *packet,
const char *src_address, int src_port,
struct nbt_netlogon_packet *netlogon)
{
struct nbt_name *name = &packet->data.msg.dest_name;
struct nbt_netlogon_packet reply;
struct nbt_netlogon_response_from_pdc *pdc;
/* only answer getdc requests on the PDC or LOGON names */
if (name->type != NBT_NAME_PDC && name->type != NBT_NAME_LOGON) {
return;
}
/* setup a GETDC reply */
reply.command = NETLOGON_RESPONSE_FROM_PDC;
pdc = &reply.req.response;
pdc->pdc_name = lp_netbios_name();
pdc->unicode_pdc_name = pdc->pdc_name;
pdc->domain_name = lp_workgroup();
pdc->nt_version = 1;
pdc->lmnt_token = 0xFFFF;
pdc->lm20_token = 0xFFFF;
packet->data.msg.dest_name.type = 0;
dgram_mailslot_netlogon_reply(dgmslot->dgmsock,
packet,
netlogon->req.pdc.mailslot_name,
&reply);
}
/*
handle incoming netlogon mailslot requests
*/
void nbtd_mailslot_netlogon_handler(struct dgram_mailslot_handler *dgmslot,
struct nbt_dgram_packet *packet,
const char *src_address, int src_port)
{
NTSTATUS status = NT_STATUS_NO_MEMORY;
struct nbtd_interface *iface =
talloc_get_type(dgmslot->private, struct nbtd_interface);
struct nbt_netlogon_packet *netlogon =
talloc(dgmslot, struct nbt_netlogon_packet);
struct nbtd_iface_name *iname;
struct nbt_name *name = &packet->data.msg.dest_name;
if (netlogon == NULL) goto failed;
/*
see if the we are listening on the destination netbios name
*/
iname = nbtd_find_iname(iface, name, 0);
if (iname == NULL) {
status = NT_STATUS_BAD_NETWORK_NAME;
goto failed;
}
DEBUG(2,("netlogon request to %s from %s:%d\n",
nbt_name_string(netlogon, name), src_address, src_port));
status = dgram_mailslot_netlogon_parse(dgmslot, netlogon, packet, netlogon);
if (!NT_STATUS_IS_OK(status)) goto failed;
NDR_PRINT_DEBUG(nbt_netlogon_packet, netlogon);
switch (netlogon->command) {
case NETLOGON_QUERY_FOR_PDC:
nbtd_netlogon_getdc(dgmslot, packet, src_address, src_port, netlogon);
break;
default:
DEBUG(2,("unknown netlogon op %d from %s:%d\n",
netlogon->command, src_address, src_port));
break;
}
talloc_free(netlogon);
return;
failed:
DEBUG(2,("nbtd netlogon handler failed from %s:%d - %s\n",
src_address, src_port, nt_errstr(status)));
talloc_free(netlogon);
}
|
