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
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
|
/*
Unix SMB/CIFS implementation.
CLDAP server structures
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2008
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/netlogon.h"
#undef DEBUG
#define DEBUG(x, y)
#undef DEBUGLVL
#define DEBUGLVL(x) false
#undef DEBUGLEVEL
#define DEBUGLEVEL 0
NTSTATUS push_netlogon_samlogon_response(DATA_BLOB *data, TALLOC_CTX *mem_ctx,
struct smb_iconv_convenience *iconv_convenience,
struct netlogon_samlogon_response *response)
{
enum ndr_err_code ndr_err;
if (response->ntver == NETLOGON_NT_VERSION_1) {
ndr_err = ndr_push_struct_blob(data, mem_ctx,
iconv_convenience,
&response->data.nt4,
(ndr_push_flags_fn_t)ndr_push_NETLOGON_SAM_LOGON_RESPONSE_NT40);
} else if (response->ntver & NETLOGON_NT_VERSION_5EX) {
ndr_err = ndr_push_struct_blob(data, mem_ctx,
iconv_convenience,
&response->data.nt5_ex,
(ndr_push_flags_fn_t)ndr_push_NETLOGON_SAM_LOGON_RESPONSE_EX_with_flags);
} else if (response->ntver & NETLOGON_NT_VERSION_5) {
ndr_err = ndr_push_struct_blob(data, mem_ctx,
iconv_convenience,
&response->data.nt5,
(ndr_push_flags_fn_t)ndr_push_NETLOGON_SAM_LOGON_RESPONSE);
} else {
DEBUG(0, ("Asked to push unknown netlogon response type 0x%02x\n", response->ntver));
return NT_STATUS_INVALID_PARAMETER;
}
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
DEBUG(2,("failed to push netlogon response of type 0x%02x\n",
response->ntver));
return ndr_map_error2ntstatus(ndr_err);
}
return NT_STATUS_OK;
}
NTSTATUS pull_netlogon_samlogon_response(DATA_BLOB *data, TALLOC_CTX *mem_ctx,
struct smb_iconv_convenience *iconv_convenience,
struct netlogon_samlogon_response *response)
{
uint32_t ntver;
enum ndr_err_code ndr_err;
if (data->length < 8) {
return NT_STATUS_BUFFER_TOO_SMALL;
}
/* lmnttoken */
if (SVAL(data->data, data->length - 4) != 0xffff) {
return NT_STATUS_INVALID_NETWORK_RESPONSE;
}
/* lm20token */
if (SVAL(data->data, data->length - 2) != 0xffff) {
return NT_STATUS_INVALID_NETWORK_RESPONSE;
}
ntver = IVAL(data->data, data->length - 8);
if (ntver == NETLOGON_NT_VERSION_1) {
ndr_err = ndr_pull_struct_blob_all(data, mem_ctx,
iconv_convenience,
&response->data.nt4,
(ndr_pull_flags_fn_t)ndr_pull_NETLOGON_SAM_LOGON_RESPONSE_NT40);
response->ntver = NETLOGON_NT_VERSION_1;
if (NDR_ERR_CODE_IS_SUCCESS(ndr_err) && DEBUGLEVEL >= 10) {
NDR_PRINT_DEBUG(NETLOGON_SAM_LOGON_RESPONSE_NT40,
&response->data.nt4);
}
} else if (ntver & NETLOGON_NT_VERSION_5EX) {
struct ndr_pull *ndr;
ndr = ndr_pull_init_blob(data, mem_ctx, iconv_convenience);
if (!ndr) {
return NT_STATUS_NO_MEMORY;
}
ndr_err = ndr_pull_NETLOGON_SAM_LOGON_RESPONSE_EX_with_flags(
ndr, NDR_SCALARS|NDR_BUFFERS, &response->data.nt5_ex,
ntver);
if (ndr->offset < ndr->data_size) {
ndr_err = ndr_pull_error(ndr, NDR_ERR_UNREAD_BYTES,
"not all bytes consumed ofs[%u] size[%u]",
ndr->offset, ndr->data_size);
}
response->ntver = NETLOGON_NT_VERSION_5EX;
if (NDR_ERR_CODE_IS_SUCCESS(ndr_err) && DEBUGLEVEL >= 10) {
NDR_PRINT_DEBUG(NETLOGON_SAM_LOGON_RESPONSE_EX,
&response->data.nt5_ex);
}
} else if (ntver & NETLOGON_NT_VERSION_5) {
ndr_err = ndr_pull_struct_blob_all(data, mem_ctx,
iconv_convenience,
&response->data.nt5,
(ndr_pull_flags_fn_t)ndr_pull_NETLOGON_SAM_LOGON_RESPONSE);
response->ntver = NETLOGON_NT_VERSION_5;
if (NDR_ERR_CODE_IS_SUCCESS(ndr_err) && DEBUGLEVEL >= 10) {
NDR_PRINT_DEBUG(NETLOGON_SAM_LOGON_RESPONSE,
&response->data.nt5);
}
} else {
DEBUG(2,("failed to parse netlogon response of type 0x%02x - unknown response type\n",
ntver));
dump_data(10, data->data, data->length);
return NT_STATUS_INVALID_NETWORK_RESPONSE;
}
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
DEBUG(2,("failed to parse netlogon response of type 0x%02x\n",
ntver));
dump_data(10, data->data, data->length);
return ndr_map_error2ntstatus(ndr_err);
}
return NT_STATUS_OK;
}
void map_netlogon_samlogon_response(struct netlogon_samlogon_response *response)
{
struct NETLOGON_SAM_LOGON_RESPONSE_EX response_5_ex;
switch (response->ntver) {
case NETLOGON_NT_VERSION_5EX:
break;
case NETLOGON_NT_VERSION_5:
ZERO_STRUCT(response_5_ex);
response_5_ex.command = response->data.nt5.command;
response_5_ex.pdc_name = response->data.nt5.pdc_name;
response_5_ex.user_name = response->data.nt5.user_name;
response_5_ex.domain = response->data.nt5.domain_name;
response_5_ex.domain_uuid = response->data.nt5.domain_uuid;
response_5_ex.forest = response->data.nt5.forest;
response_5_ex.dns_domain = response->data.nt5.dns_domain;
response_5_ex.pdc_dns_name = response->data.nt5.pdc_dns_name;
response_5_ex.sockaddr.pdc_ip = response->data.nt5.pdc_ip;
response_5_ex.server_type = response->data.nt5.server_type;
response_5_ex.nt_version = response->data.nt5.nt_version;
response_5_ex.lmnt_token = response->data.nt5.lmnt_token;
response_5_ex.lm20_token = response->data.nt5.lm20_token;
response->ntver = NETLOGON_NT_VERSION_5EX;
response->data.nt5_ex = response_5_ex;
break;
case NETLOGON_NT_VERSION_1:
ZERO_STRUCT(response_5_ex);
response_5_ex.command = response->data.nt4.command;
response_5_ex.pdc_name = response->data.nt4.server;
response_5_ex.user_name = response->data.nt4.user_name;
response_5_ex.domain = response->data.nt4.domain;
response_5_ex.nt_version = response->data.nt4.nt_version;
response_5_ex.lmnt_token = response->data.nt4.lmnt_token;
response_5_ex.lm20_token = response->data.nt4.lm20_token;
response->ntver = NETLOGON_NT_VERSION_5EX;
response->data.nt5_ex = response_5_ex;
break;
}
return;
}
NTSTATUS push_nbt_netlogon_response(DATA_BLOB *data, TALLOC_CTX *mem_ctx,
struct smb_iconv_convenience *iconv_convenience,
struct nbt_netlogon_response *response)
{
NTSTATUS status = NT_STATUS_INVALID_NETWORK_RESPONSE;
enum ndr_err_code ndr_err;
switch (response->response_type) {
case NETLOGON_GET_PDC:
ndr_err = ndr_push_struct_blob(data, mem_ctx,
iconv_convenience,
&response->data.get_pdc,
(ndr_push_flags_fn_t)ndr_push_nbt_netlogon_response_from_pdc);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
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;
}
status = NT_STATUS_OK;
break;
case NETLOGON_SAMLOGON:
status = push_netlogon_samlogon_response(
data, mem_ctx, iconv_convenience,
&response->data.samlogon);
break;
}
return status;
}
NTSTATUS pull_nbt_netlogon_response(DATA_BLOB *data, TALLOC_CTX *mem_ctx,
struct smb_iconv_convenience *iconv_convenience,
struct nbt_netlogon_response *response)
{
NTSTATUS status = NT_STATUS_INVALID_NETWORK_RESPONSE;
enum netlogon_command command;
enum ndr_err_code ndr_err;
if (data->length < 4) {
return NT_STATUS_INVALID_NETWORK_RESPONSE;
}
command = SVAL(data->data, 0);
switch (command) {
case NETLOGON_RESPONSE_FROM_PDC:
ndr_err = ndr_pull_struct_blob_all(data, mem_ctx,
iconv_convenience,
&response->data.get_pdc,
(ndr_pull_flags_fn_t)ndr_pull_nbt_netlogon_response_from_pdc);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
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;
}
status = NT_STATUS_OK;
response->response_type = NETLOGON_GET_PDC;
break;
case LOGON_SAM_LOGON_RESPONSE:
case LOGON_SAM_LOGON_PAUSE_RESPONSE:
case LOGON_SAM_LOGON_USER_UNKNOWN:
case LOGON_SAM_LOGON_RESPONSE_EX:
case LOGON_SAM_LOGON_PAUSE_RESPONSE_EX:
case LOGON_SAM_LOGON_USER_UNKNOWN_EX:
status = pull_netlogon_samlogon_response(
data, mem_ctx, iconv_convenience,
&response->data.samlogon);
response->response_type = NETLOGON_SAMLOGON;
break;
/* These levels are queries, not responses */
case LOGON_PRIMARY_QUERY:
case NETLOGON_ANNOUNCE_UAS:
case LOGON_SAM_LOGON_REQUEST:
status = NT_STATUS_INVALID_NETWORK_RESPONSE;
}
return status;
}
|
