summaryrefslogtreecommitdiff
path: root/source3/rpc_client/cli_samr.c
blob: 8c92ebb059c3a54bb0c923e49e9259740e940cb7 (plain)
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
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
/* 
   Unix SMB/CIFS implementation.
   RPC pipe client
   Copyright (C) Tim Potter                        2000-2001,
   Copyright (C) Andrew Tridgell              1992-1997,2000,
   Copyright (C) Rafal Szczesniak                       2002.
   Copyright (C) Jeremy Allison                         2005.
   Copyright (C) Guenther Deschner                      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/auth/libcli_auth.h"
#include "../librpc/gen_ndr/cli_samr.h"
#include "rpc_client/cli_samr.h"
#include "../lib/crypto/arcfour.h"

/* User change password */

NTSTATUS rpccli_samr_chgpasswd_user(struct rpc_pipe_client *cli,
				    TALLOC_CTX *mem_ctx,
				    struct policy_handle *user_handle,
				    const char *newpassword,
				    const char *oldpassword)
{
	NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
	struct samr_Password hash1, hash2, hash3, hash4, hash5, hash6;

	uchar old_nt_hash[16];
	uchar old_lm_hash[16];
	uchar new_nt_hash[16];
	uchar new_lm_hash[16];

	ZERO_STRUCT(old_nt_hash);
	ZERO_STRUCT(old_lm_hash);
	ZERO_STRUCT(new_nt_hash);
	ZERO_STRUCT(new_lm_hash);

	DEBUG(10,("rpccli_samr_chgpasswd_user\n"));

	E_md4hash(oldpassword, old_nt_hash);
	E_md4hash(newpassword, new_nt_hash);

	E_deshash(oldpassword, old_lm_hash);
	E_deshash(newpassword, new_lm_hash);

	E_old_pw_hash(new_lm_hash, old_lm_hash, hash1.hash);
	E_old_pw_hash(old_lm_hash, new_lm_hash, hash2.hash);
	E_old_pw_hash(new_nt_hash, old_nt_hash, hash3.hash);
	E_old_pw_hash(old_nt_hash, new_nt_hash, hash4.hash);
	E_old_pw_hash(old_lm_hash, new_nt_hash, hash5.hash);
	E_old_pw_hash(old_nt_hash, new_lm_hash, hash6.hash);

	result = rpccli_samr_ChangePasswordUser(cli, mem_ctx,
						user_handle,
						true,
						&hash1,
						&hash2,
						true,
						&hash3,
						&hash4,
						true,
						&hash5,
						true,
						&hash6);

	return result;
}


/* User change password */

NTSTATUS rpccli_samr_chgpasswd_user2(struct rpc_pipe_client *cli,
				     TALLOC_CTX *mem_ctx,
				     const char *username,
				     const char *newpassword,
				     const char *oldpassword)
{
	NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
	struct samr_CryptPassword new_nt_password;
	struct samr_CryptPassword new_lm_password;
	struct samr_Password old_nt_hash_enc;
	struct samr_Password old_lanman_hash_enc;

	uchar old_nt_hash[16];
	uchar old_lanman_hash[16];
	uchar new_nt_hash[16];
	uchar new_lanman_hash[16];
	struct lsa_String server, account;

	DEBUG(10,("rpccli_samr_chgpasswd_user2\n"));

	init_lsa_String(&server, cli->srv_name_slash);
	init_lsa_String(&account, username);

	/* Calculate the MD4 hash (NT compatible) of the password */
	E_md4hash(oldpassword, old_nt_hash);
	E_md4hash(newpassword, new_nt_hash);

	if (lp_client_lanman_auth() &&
	    E_deshash(newpassword, new_lanman_hash) &&
	    E_deshash(oldpassword, old_lanman_hash)) {
		/* E_deshash returns false for 'long' passwords (> 14
		   DOS chars).  This allows us to match Win2k, which
		   does not store a LM hash for these passwords (which
		   would reduce the effective password length to 14) */

		encode_pw_buffer(new_lm_password.data, newpassword, STR_UNICODE);

		arcfour_crypt(new_lm_password.data, old_nt_hash, 516);
		E_old_pw_hash(new_nt_hash, old_lanman_hash, old_lanman_hash_enc.hash);
	} else {
		ZERO_STRUCT(new_lm_password);
		ZERO_STRUCT(old_lanman_hash_enc);
	}

	encode_pw_buffer(new_nt_password.data, newpassword, STR_UNICODE);

	arcfour_crypt(new_nt_password.data, old_nt_hash, 516);
	E_old_pw_hash(new_nt_hash, old_nt_hash, old_nt_hash_enc.hash);

	result = rpccli_samr_ChangePasswordUser2(cli, mem_ctx,
						 &server,
						 &account,
						 &new_nt_password,
						 &old_nt_hash_enc,
						 true,
						 &new_lm_password,
						 &old_lanman_hash_enc);

	return result;
}

/* User change password given blobs */

NTSTATUS rpccli_samr_chng_pswd_auth_crap(struct rpc_pipe_client *cli,
					 TALLOC_CTX *mem_ctx,
					 const char *username,
					 DATA_BLOB new_nt_password_blob,
					 DATA_BLOB old_nt_hash_enc_blob,
					 DATA_BLOB new_lm_password_blob,
					 DATA_BLOB old_lm_hash_enc_blob)
{
	NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
	struct samr_CryptPassword new_nt_password;
	struct samr_CryptPassword new_lm_password;
	struct samr_Password old_nt_hash_enc;
	struct samr_Password old_lm_hash_enc;
	struct lsa_String server, account;

	DEBUG(10,("rpccli_samr_chng_pswd_auth_crap\n"));

	init_lsa_String(&server, cli->srv_name_slash);
	init_lsa_String(&account, username);

	memcpy(&new_nt_password.data, new_nt_password_blob.data, 516);
	memcpy(&new_lm_password.data, new_lm_password_blob.data, 516);
	memcpy(&old_nt_hash_enc.hash, old_nt_hash_enc_blob.data, 16);
	memcpy(&old_lm_hash_enc.hash, old_lm_hash_enc_blob.data, 16);

	result = rpccli_samr_ChangePasswordUser2(cli, mem_ctx,
						 &server,
						 &account,
						 &new_nt_password,
						 &old_nt_hash_enc,
						 true,
						 &new_lm_password,
						 &old_lm_hash_enc);
	return result;
}


/* change password 3 */

NTSTATUS rpccli_samr_chgpasswd_user3(struct rpc_pipe_client *cli,
				     TALLOC_CTX *mem_ctx,
				     const char *username,
				     const char *newpassword,
				     const char *oldpassword,
				     struct samr_DomInfo1 **dominfo1,
				     struct userPwdChangeFailureInformation **reject)
{
	NTSTATUS status;

	struct samr_CryptPassword new_nt_password;
	struct samr_CryptPassword new_lm_password;
	struct samr_Password old_nt_hash_enc;
	struct samr_Password old_lanman_hash_enc;

	uchar old_nt_hash[16];
	uchar old_lanman_hash[16];
	uchar new_nt_hash[16];
	uchar new_lanman_hash[16];

	struct lsa_String server, account;

	DEBUG(10,("rpccli_samr_chgpasswd_user3\n"));

	init_lsa_String(&server, cli->srv_name_slash);
	init_lsa_String(&account, username);

	/* Calculate the MD4 hash (NT compatible) of the password */
	E_md4hash(oldpassword, old_nt_hash);
	E_md4hash(newpassword, new_nt_hash);

	if (lp_client_lanman_auth() &&
	    E_deshash(newpassword, new_lanman_hash) &&
	    E_deshash(oldpassword, old_lanman_hash)) {
		/* E_deshash returns false for 'long' passwords (> 14
		   DOS chars).  This allows us to match Win2k, which
		   does not store a LM hash for these passwords (which
		   would reduce the effective password length to 14) */

		encode_pw_buffer(new_lm_password.data, newpassword, STR_UNICODE);

		arcfour_crypt(new_lm_password.data, old_nt_hash, 516);
		E_old_pw_hash(new_nt_hash, old_lanman_hash, old_lanman_hash_enc.hash);
	} else {
		ZERO_STRUCT(new_lm_password);
		ZERO_STRUCT(old_lanman_hash_enc);
	}

	encode_pw_buffer(new_nt_password.data, newpassword, STR_UNICODE);

	arcfour_crypt(new_nt_password.data, old_nt_hash, 516);
	E_old_pw_hash(new_nt_hash, old_nt_hash, old_nt_hash_enc.hash);

	status = rpccli_samr_ChangePasswordUser3(cli, mem_ctx,
						 &server,
						 &account,
						 &new_nt_password,
						 &old_nt_hash_enc,
						 true,
						 &new_lm_password,
						 &old_lanman_hash_enc,
						 NULL,
						 dominfo1,
						 reject);
	return status;
}

/* This function returns the bizzare set of (max_entries, max_size) required
   for the QueryDisplayInfo RPC to actually work against a domain controller
   with large (10k and higher) numbers of users.  These values were 
   obtained by inspection using ethereal and NT4 running User Manager. */

void get_query_dispinfo_params(int loop_count, uint32 *max_entries,
			       uint32 *max_size)
{
	switch(loop_count) {
	case 0:
		*max_entries = 512;
		*max_size = 16383;
		break;
	case 1:
		*max_entries = 1024;
		*max_size = 32766;
		break;
	case 2:
		*max_entries = 2048;
		*max_size = 65532;
		break;
	case 3:
		*max_entries = 4096;
		*max_size = 131064;
		break;
	default:              /* loop_count >= 4 */
		*max_entries = 4096;
		*max_size = 131071;
		break;
	}
}

NTSTATUS rpccli_try_samr_connects(struct rpc_pipe_client *cli,
				  TALLOC_CTX *mem_ctx,
				  uint32_t access_mask,
				  struct policy_handle *connect_pol)
{
	NTSTATUS status;
	union samr_ConnectInfo info_in, info_out;
	struct samr_ConnectInfo1 info1;
	uint32_t lvl_out = 0;

	ZERO_STRUCT(info1);

	info1.client_version = SAMR_CONNECT_W2K;
	info_in.info1 = info1;

	status = rpccli_samr_Connect5(cli, mem_ctx,
				      cli->srv_name_slash,
				      access_mask,
				      1,
				      &info_in,
				      &lvl_out,
				      &info_out,
				      connect_pol);
	if (NT_STATUS_IS_OK(status)) {
		return status;
	}

	status = rpccli_samr_Connect4(cli, mem_ctx,
				      cli->srv_name_slash,
				      SAMR_CONNECT_W2K,
				      access_mask,
				      connect_pol);
	if (NT_STATUS_IS_OK(status)) {
		return status;
	}

	status = rpccli_samr_Connect2(cli, mem_ctx,
				      cli->srv_name_slash,
				      access_mask,
				      connect_pol);
	return status;
}