source: vendor/3.6.0/source4/libnet/libnet_passwd.c

Last change on this file was 740, checked in by Silvan Scherrer, 13 years ago

Samba Server: update vendor to 3.6.0
File size: 24.7 KB
Line 
1/*
2 Unix SMB/CIFS implementation.
3
4 Copyright (C) Stefan Metzmacher 2004
5 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
19*/
20
21#include "includes.h"
22#include "libnet/libnet.h"
23#include "../lib/crypto/crypto.h"
24#include "libcli/auth/libcli_auth.h"
25#include "librpc/gen_ndr/ndr_samr_c.h"
26
27/*
28 * do a password change using DCERPC/SAMR calls
29 * 1. connect to the SAMR pipe of users domain PDC (maybe a standalone server or workstation)
30 * 2. try samr_ChangePasswordUser3
31 * 3. try samr_ChangePasswordUser2
32 * 4. try samr_OemChangePasswordUser2
33 * (not yet: 5. try samr_ChangePasswordUser)
34 */
35static NTSTATUS libnet_ChangePassword_samr(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_ChangePassword *r)
36{
37 NTSTATUS status;
38 struct libnet_RpcConnect c;
39#if 0
40 struct policy_handle user_handle;
41 struct samr_Password hash1, hash2, hash3, hash4, hash5, hash6;
42 struct samr_ChangePasswordUser pw;
43#endif
44 struct samr_OemChangePasswordUser2 oe2;
45 struct samr_ChangePasswordUser2 pw2;
46 struct samr_ChangePasswordUser3 pw3;
47 struct lsa_String server, account;
48 struct lsa_AsciiString a_server, a_account;
49 struct samr_CryptPassword nt_pass, lm_pass;
50 struct samr_Password nt_verifier, lm_verifier;
51 uint8_t old_nt_hash[16], new_nt_hash[16];
52 uint8_t old_lm_hash[16], new_lm_hash[16];
53 struct samr_DomInfo1 *dominfo = NULL;
54 struct userPwdChangeFailureInformation *reject = NULL;
55
56 ZERO_STRUCT(c);
57
58 /* prepare connect to the SAMR pipe of the users domain PDC */
59 c.level = LIBNET_RPC_CONNECT_PDC;
60 c.in.name = r->samr.in.domain_name;
61 c.in.dcerpc_iface = &ndr_table_samr;
62 c.in.dcerpc_flags = DCERPC_ANON_FALLBACK;
63
64 /* 1. connect to the SAMR pipe of users domain PDC (maybe a standalone server or workstation) */
65 status = libnet_RpcConnect(ctx, mem_ctx, &c);
66 if (!NT_STATUS_IS_OK(status)) {
67 r->samr.out.error_string = talloc_asprintf(mem_ctx,
68 "Connection to SAMR pipe of PDC of domain '%s' failed: %s",
69 r->samr.in.domain_name, nt_errstr(status));
70 return status;
71 }
72
73 /* prepare password change for account */
74 server.string = talloc_asprintf(mem_ctx, "\\\\%s", dcerpc_server_name(c.out.dcerpc_pipe));
75 account.string = r->samr.in.account_name;
76
77 E_md4hash(r->samr.in.oldpassword, old_nt_hash);
78 E_md4hash(r->samr.in.newpassword, new_nt_hash);
79
80 E_deshash(r->samr.in.oldpassword, old_lm_hash);
81 E_deshash(r->samr.in.newpassword, new_lm_hash);
82
83 /* prepare samr_ChangePasswordUser3 */
84 encode_pw_buffer(lm_pass.data, r->samr.in.newpassword, STR_UNICODE);
85 arcfour_crypt(lm_pass.data, old_nt_hash, 516);
86 E_old_pw_hash(new_lm_hash, old_lm_hash, lm_verifier.hash);
87
88 encode_pw_buffer(nt_pass.data, r->samr.in.newpassword, STR_UNICODE);
89 arcfour_crypt(nt_pass.data, old_nt_hash, 516);
90 E_old_pw_hash(new_nt_hash, old_nt_hash, nt_verifier.hash);
91
92 pw3.in.server = &server;
93 pw3.in.account = &account;
94 pw3.in.nt_password = &nt_pass;
95 pw3.in.nt_verifier = &nt_verifier;
96 pw3.in.lm_change = 1;
97 pw3.in.lm_password = &lm_pass;
98 pw3.in.lm_verifier = &lm_verifier;
99 pw3.in.password3 = NULL;
100 pw3.out.dominfo = &dominfo;
101 pw3.out.reject = &reject;
102
103 /* 2. try samr_ChangePasswordUser3 */
104 status = dcerpc_samr_ChangePasswordUser3_r(c.out.dcerpc_pipe->binding_handle, mem_ctx, &pw3);
105 if (!NT_STATUS_EQUAL(status, NT_STATUS_RPC_PROCNUM_OUT_OF_RANGE)) {
106 if (NT_STATUS_IS_OK(status) && !NT_STATUS_IS_OK(pw3.out.result)) {
107 status = pw3.out.result;
108 }
109 if (!NT_STATUS_IS_OK(status)) {
110 r->samr.out.error_string = talloc_asprintf(mem_ctx,
111 "samr_ChangePasswordUser3 failed: %s",
112 nt_errstr(status));
113 r->samr.out.error_string = talloc_asprintf(mem_ctx,
114 "samr_ChangePasswordUser3 for '%s\\%s' failed: %s",
115 r->samr.in.domain_name, r->samr.in.account_name,
116 nt_errstr(status));
117 }
118 goto disconnect;
119 }
120
121 /* prepare samr_ChangePasswordUser2 */
122 encode_pw_buffer(lm_pass.data, r->samr.in.newpassword, STR_ASCII|STR_TERMINATE);
123 arcfour_crypt(lm_pass.data, old_lm_hash, 516);
124 E_old_pw_hash(new_lm_hash, old_lm_hash, lm_verifier.hash);
125
126 encode_pw_buffer(nt_pass.data, r->samr.in.newpassword, STR_UNICODE);
127 arcfour_crypt(nt_pass.data, old_nt_hash, 516);
128 E_old_pw_hash(new_nt_hash, old_nt_hash, nt_verifier.hash);
129
130 pw2.in.server = &server;
131 pw2.in.account = &account;
132 pw2.in.nt_password = &nt_pass;
133 pw2.in.nt_verifier = &nt_verifier;
134 pw2.in.lm_change = 1;
135 pw2.in.lm_password = &lm_pass;
136 pw2.in.lm_verifier = &lm_verifier;
137
138 /* 3. try samr_ChangePasswordUser2 */
139 status = dcerpc_samr_ChangePasswordUser2_r(c.out.dcerpc_pipe->binding_handle, mem_ctx, &pw2);
140 if (!NT_STATUS_EQUAL(status, NT_STATUS_RPC_PROCNUM_OUT_OF_RANGE)) {
141 if (NT_STATUS_IS_OK(status) && !NT_STATUS_IS_OK(pw2.out.result)) {
142 status = pw2.out.result;
143 }
144 if (!NT_STATUS_IS_OK(status)) {
145 r->samr.out.error_string = talloc_asprintf(mem_ctx,
146 "samr_ChangePasswordUser2 for '%s\\%s' failed: %s",
147 r->samr.in.domain_name, r->samr.in.account_name,
148 nt_errstr(status));
149 }
150 goto disconnect;
151 }
152
153
154 /* prepare samr_OemChangePasswordUser2 */
155 a_server.string = talloc_asprintf(mem_ctx, "\\\\%s", dcerpc_server_name(c.out.dcerpc_pipe));
156 a_account.string = r->samr.in.account_name;
157
158 encode_pw_buffer(lm_pass.data, r->samr.in.newpassword, STR_ASCII);
159 arcfour_crypt(lm_pass.data, old_lm_hash, 516);
160 E_old_pw_hash(new_lm_hash, old_lm_hash, lm_verifier.hash);
161
162 oe2.in.server = &a_server;
163 oe2.in.account = &a_account;
164 oe2.in.password = &lm_pass;
165 oe2.in.hash = &lm_verifier;
166
167 /* 4. try samr_OemChangePasswordUser2 */
168 status = dcerpc_samr_OemChangePasswordUser2_r(c.out.dcerpc_pipe->binding_handle, mem_ctx, &oe2);
169 if (!NT_STATUS_EQUAL(status, NT_STATUS_RPC_PROCNUM_OUT_OF_RANGE)) {
170 if (NT_STATUS_IS_OK(status) && !NT_STATUS_IS_OK(oe2.out.result)) {
171 status = oe2.out.result;
172 }
173 if (!NT_STATUS_IS_OK(oe2.out.result)) {
174 r->samr.out.error_string = talloc_asprintf(mem_ctx,
175 "samr_OemChangePasswordUser2 for '%s\\%s' failed: %s",
176 r->samr.in.domain_name, r->samr.in.account_name,
177 nt_errstr(status));
178 }
179 goto disconnect;
180 }
181
182#if 0
183 /* prepare samr_ChangePasswordUser */
184 E_old_pw_hash(new_lm_hash, old_lm_hash, hash1.hash);
185 E_old_pw_hash(old_lm_hash, new_lm_hash, hash2.hash);
186 E_old_pw_hash(new_nt_hash, old_nt_hash, hash3.hash);
187 E_old_pw_hash(old_nt_hash, new_nt_hash, hash4.hash);
188 E_old_pw_hash(old_lm_hash, new_nt_hash, hash5.hash);
189 E_old_pw_hash(old_nt_hash, new_lm_hash, hash6.hash);
190
191 /* TODO: ask for a user_handle */
192 pw.in.handle = &user_handle;
193 pw.in.lm_present = 1;
194 pw.in.old_lm_crypted = &hash1;
195 pw.in.new_lm_crypted = &hash2;
196 pw.in.nt_present = 1;
197 pw.in.old_nt_crypted = &hash3;
198 pw.in.new_nt_crypted = &hash4;
199 pw.in.cross1_present = 1;
200 pw.in.nt_cross = &hash5;
201 pw.in.cross2_present = 1;
202 pw.in.lm_cross = &hash6;
203
204 /* 5. try samr_ChangePasswordUser */
205 status = dcerpc_samr_ChangePasswordUser_r(c.pdc.out.dcerpc_pipe->binding_handle, mem_ctx, &pw);
206 if (!NT_STATUS_IS_OK(status)) {
207 r->samr.out.error_string = talloc_asprintf(mem_ctx,
208 "samr_ChangePasswordUser failed: %s",
209 nt_errstr(status));
210 goto disconnect;
211 }
212
213 /* check result of samr_ChangePasswordUser */
214 if (!NT_STATUS_IS_OK(pw.out.result)) {
215 r->samr.out.error_string = talloc_asprintf(mem_ctx,
216 "samr_ChangePasswordUser for '%s\\%s' failed: %s",
217 r->samr.in.domain_name, r->samr.in.account_name,
218 nt_errstr(pw.out.result));
219 if (NT_STATUS_EQUAL(pw.out.result, NT_STATUS_PASSWORD_RESTRICTION)) {
220 status = pw.out.result;
221 goto disconnect;
222 }
223 goto disconnect;
224 }
225#endif
226disconnect:
227 /* close connection */
228 talloc_unlink(ctx, c.out.dcerpc_pipe);
229
230 return status;
231}
232
233static NTSTATUS libnet_ChangePassword_generic(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_ChangePassword *r)
234{
235 NTSTATUS status;
236 union libnet_ChangePassword r2;
237
238 r2.samr.level = LIBNET_CHANGE_PASSWORD_SAMR;
239 r2.samr.in.account_name = r->generic.in.account_name;
240 r2.samr.in.domain_name = r->generic.in.domain_name;
241 r2.samr.in.oldpassword = r->generic.in.oldpassword;
242 r2.samr.in.newpassword = r->generic.in.newpassword;
243
244 status = libnet_ChangePassword(ctx, mem_ctx, &r2);
245
246 r->generic.out.error_string = r2.samr.out.error_string;
247
248 return status;
249}
250
251NTSTATUS libnet_ChangePassword(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_ChangePassword *r)
252{
253 switch (r->generic.level) {
254 case LIBNET_CHANGE_PASSWORD_GENERIC:
255 return libnet_ChangePassword_generic(ctx, mem_ctx, r);
256 case LIBNET_CHANGE_PASSWORD_SAMR:
257 return libnet_ChangePassword_samr(ctx, mem_ctx, r);
258 case LIBNET_CHANGE_PASSWORD_KRB5:
259 return NT_STATUS_NOT_IMPLEMENTED;
260 case LIBNET_CHANGE_PASSWORD_LDAP:
261 return NT_STATUS_NOT_IMPLEMENTED;
262 case LIBNET_CHANGE_PASSWORD_RAP:
263 return NT_STATUS_NOT_IMPLEMENTED;
264 }
265
266 return NT_STATUS_INVALID_LEVEL;
267}
268
269static NTSTATUS libnet_SetPassword_samr_handle_26(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r)
270{
271 NTSTATUS status;
272 struct samr_SetUserInfo2 sui;
273 union samr_UserInfo u_info;
274 DATA_BLOB session_key;
275 DATA_BLOB confounded_session_key = data_blob_talloc(mem_ctx, NULL, 16);
276 uint8_t confounder[16];
277 struct MD5Context md5;
278
279 if (r->samr_handle.in.info21) {
280 return NT_STATUS_INVALID_PARAMETER_MIX;
281 }
282
283 /* prepare samr_SetUserInfo2 level 26 */
284 ZERO_STRUCT(u_info);
285 encode_pw_buffer(u_info.info26.password.data, r->samr_handle.in.newpassword, STR_UNICODE);
286 u_info.info26.password_expired = 0;
287
288 status = dcerpc_fetch_session_key(r->samr_handle.in.dcerpc_pipe, &session_key);
289 if (!NT_STATUS_IS_OK(status)) {
290 r->samr_handle.out.error_string = talloc_asprintf(mem_ctx,
291 "dcerpc_fetch_session_key failed: %s",
292 nt_errstr(status));
293 return status;
294 }
295
296 generate_random_buffer((uint8_t *)confounder, 16);
297
298 MD5Init(&md5);
299 MD5Update(&md5, confounder, 16);
300 MD5Update(&md5, session_key.data, session_key.length);
301 MD5Final(confounded_session_key.data, &md5);
302
303 arcfour_crypt_blob(u_info.info26.password.data, 516, &confounded_session_key);
304 memcpy(&u_info.info26.password.data[516], confounder, 16);
305
306 sui.in.user_handle = r->samr_handle.in.user_handle;
307 sui.in.info = &u_info;
308 sui.in.level = 26;
309
310 /* 7. try samr_SetUserInfo2 level 26 to set the password */
311 status = dcerpc_samr_SetUserInfo2_r(r->samr_handle.in.dcerpc_pipe->binding_handle, mem_ctx, &sui);
312 /* check result of samr_SetUserInfo2 level 26 */
313 if (NT_STATUS_IS_OK(status) && !NT_STATUS_IS_OK(sui.out.result)) {
314 status = sui.out.result;
315 }
316 if (!NT_STATUS_IS_OK(status)) {
317 r->samr_handle.out.error_string
318 = talloc_asprintf(mem_ctx,
319 "SetUserInfo2 level 26 for [%s] failed: %s",
320 r->samr_handle.in.account_name, nt_errstr(status));
321 }
322 return status;
323}
324
325static NTSTATUS libnet_SetPassword_samr_handle_25(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r)
326{
327 NTSTATUS status;
328 struct samr_SetUserInfo2 sui;
329 union samr_UserInfo u_info;
330 DATA_BLOB session_key;
331 DATA_BLOB confounded_session_key = data_blob_talloc(mem_ctx, NULL, 16);
332 uint8_t confounder[16];
333 struct MD5Context md5;
334
335 if (!r->samr_handle.in.info21) {
336 return NT_STATUS_INVALID_PARAMETER_MIX;
337 }
338
339 /* prepare samr_SetUserInfo2 level 25 */
340 ZERO_STRUCT(u_info);
341 u_info.info25.info = *r->samr_handle.in.info21;
342 u_info.info25.info.fields_present |= SAMR_FIELD_NT_PASSWORD_PRESENT;
343 encode_pw_buffer(u_info.info25.password.data, r->samr_handle.in.newpassword, STR_UNICODE);
344
345 status = dcerpc_fetch_session_key(r->samr_handle.in.dcerpc_pipe, &session_key);
346 if (!NT_STATUS_IS_OK(status)) {
347 r->samr_handle.out.error_string = talloc_asprintf(mem_ctx,
348 "dcerpc_fetch_session_key failed: %s",
349 nt_errstr(status));
350 return status;
351 }
352
353 generate_random_buffer((uint8_t *)confounder, 16);
354
355 MD5Init(&md5);
356 MD5Update(&md5, confounder, 16);
357 MD5Update(&md5, session_key.data, session_key.length);
358 MD5Final(confounded_session_key.data, &md5);
359
360 arcfour_crypt_blob(u_info.info25.password.data, 516, &confounded_session_key);
361 memcpy(&u_info.info25.password.data[516], confounder, 16);
362
363 sui.in.user_handle = r->samr_handle.in.user_handle;
364 sui.in.info = &u_info;
365 sui.in.level = 25;
366
367 /* 8. try samr_SetUserInfo2 level 25 to set the password */
368 status = dcerpc_samr_SetUserInfo2_r(r->samr_handle.in.dcerpc_pipe->binding_handle, mem_ctx, &sui);
369 if (NT_STATUS_IS_OK(status) && !NT_STATUS_IS_OK(sui.out.result)) {
370 status = sui.out.result;
371 }
372 if (!NT_STATUS_IS_OK(status)) {
373 r->samr_handle.out.error_string
374 = talloc_asprintf(mem_ctx,
375 "SetUserInfo2 level 25 for [%s] failed: %s",
376 r->samr_handle.in.account_name, nt_errstr(status));
377 }
378 return status;
379}
380
381static NTSTATUS libnet_SetPassword_samr_handle_24(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r)
382{
383 NTSTATUS status;
384 struct samr_SetUserInfo2 sui;
385 union samr_UserInfo u_info;
386 DATA_BLOB session_key;
387
388 if (r->samr_handle.in.info21) {
389 return NT_STATUS_INVALID_PARAMETER_MIX;
390 }
391
392 /* prepare samr_SetUserInfo2 level 24 */
393 ZERO_STRUCT(u_info);
394 encode_pw_buffer(u_info.info24.password.data, r->samr_handle.in.newpassword, STR_UNICODE);
395 u_info.info24.password_expired = 0;
396
397 status = dcerpc_fetch_session_key(r->samr_handle.in.dcerpc_pipe, &session_key);
398 if (!NT_STATUS_IS_OK(status)) {
399 r->samr_handle.out.error_string = talloc_asprintf(mem_ctx,
400 "dcerpc_fetch_session_key failed: %s",
401 nt_errstr(status));
402 return status;
403 }
404
405 arcfour_crypt_blob(u_info.info24.password.data, 516, &session_key);
406
407 sui.in.user_handle = r->samr_handle.in.user_handle;
408 sui.in.info = &u_info;
409 sui.in.level = 24;
410
411 /* 9. try samr_SetUserInfo2 level 24 to set the password */
412 status = dcerpc_samr_SetUserInfo2_r(r->samr_handle.in.dcerpc_pipe->binding_handle, mem_ctx, &sui);
413 if (NT_STATUS_IS_OK(status) && !NT_STATUS_IS_OK(sui.out.result)) {
414 status = sui.out.result;
415 }
416 if (!NT_STATUS_IS_OK(status)) {
417 r->samr_handle.out.error_string
418 = talloc_asprintf(mem_ctx,
419 "SetUserInfo2 level 24 for [%s] failed: %s",
420 r->samr_handle.in.account_name, nt_errstr(status));
421 }
422 return status;
423}
424
425static NTSTATUS libnet_SetPassword_samr_handle_23(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r)
426{
427 NTSTATUS status;
428 struct samr_SetUserInfo2 sui;
429 union samr_UserInfo u_info;
430 DATA_BLOB session_key;
431
432 if (!r->samr_handle.in.info21) {
433 return NT_STATUS_INVALID_PARAMETER_MIX;
434 }
435
436 /* prepare samr_SetUserInfo2 level 23 */
437 ZERO_STRUCT(u_info);
438 u_info.info23.info = *r->samr_handle.in.info21;
439 u_info.info23.info.fields_present |= SAMR_FIELD_NT_PASSWORD_PRESENT;
440 encode_pw_buffer(u_info.info23.password.data, r->samr_handle.in.newpassword, STR_UNICODE);
441
442 status = dcerpc_fetch_session_key(r->samr_handle.in.dcerpc_pipe, &session_key);
443 if (!NT_STATUS_IS_OK(status)) {
444 r->samr_handle.out.error_string
445 = talloc_asprintf(mem_ctx,
446 "dcerpc_fetch_session_key failed: %s",
447 nt_errstr(status));
448 return status;
449 }
450
451 arcfour_crypt_blob(u_info.info23.password.data, 516, &session_key);
452
453 sui.in.user_handle = r->samr_handle.in.user_handle;
454 sui.in.info = &u_info;
455 sui.in.level = 23;
456
457 /* 10. try samr_SetUserInfo2 level 23 to set the password */
458 status = dcerpc_samr_SetUserInfo2_r(r->samr_handle.in.dcerpc_pipe->binding_handle, mem_ctx, &sui);
459 if (NT_STATUS_IS_OK(status) && !NT_STATUS_IS_OK(sui.out.result)) {
460 status = sui.out.result;
461 }
462 if (!NT_STATUS_IS_OK(status)) {
463 r->samr_handle.out.error_string
464 = talloc_asprintf(mem_ctx,
465 "SetUserInfo2 level 23 for [%s] failed: %s",
466 r->samr_handle.in.account_name, nt_errstr(status));
467 }
468 return status;
469}
470
471/*
472 * 1. try samr_SetUserInfo2 level 26 to set the password
473 * 2. try samr_SetUserInfo2 level 25 to set the password
474 * 3. try samr_SetUserInfo2 level 24 to set the password
475 * 4. try samr_SetUserInfo2 level 23 to set the password
476*/
477static NTSTATUS libnet_SetPassword_samr_handle(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r)
478{
479
480 NTSTATUS status;
481 enum libnet_SetPassword_level levels[] = {
482 LIBNET_SET_PASSWORD_SAMR_HANDLE_26,
483 LIBNET_SET_PASSWORD_SAMR_HANDLE_25,
484 LIBNET_SET_PASSWORD_SAMR_HANDLE_24,
485 LIBNET_SET_PASSWORD_SAMR_HANDLE_23,
486 };
487 unsigned int i;
488
489 for (i=0; i < ARRAY_SIZE(levels); i++) {
490 r->generic.level = levels[i];
491 status = libnet_SetPassword(ctx, mem_ctx, r);
492 if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_INFO_CLASS)
493 || NT_STATUS_EQUAL(status, NT_STATUS_INVALID_PARAMETER_MIX)
494 || NT_STATUS_EQUAL(status, NT_STATUS_RPC_ENUM_VALUE_OUT_OF_RANGE)) {
495 /* Try another password set mechanism */
496 continue;
497 }
498 break;
499 }
500
501 return status;
502}
503/*
504 * set a password with DCERPC/SAMR calls
505 * 1. connect to the SAMR pipe of users domain PDC (maybe a standalone server or workstation)
506 * is it correct to contact the the pdc of the domain of the user who's password should be set?
507 * 2. do a samr_Connect to get a policy handle
508 * 3. do a samr_LookupDomain to get the domain sid
509 * 4. do a samr_OpenDomain to get a domain handle
510 * 5. do a samr_LookupNames to get the users rid
511 * 6. do a samr_OpenUser to get a user handle
512 * 7 call libnet_SetPassword_samr_handle to set the password
513 */
514static NTSTATUS libnet_SetPassword_samr(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r)
515{
516 NTSTATUS status;
517 struct libnet_RpcConnect c;
518 struct samr_Connect sc;
519 struct policy_handle p_handle;
520 struct samr_LookupDomain ld;
521 struct dom_sid2 *sid = NULL;
522 struct lsa_String d_name;
523 struct samr_OpenDomain od;
524 struct policy_handle d_handle;
525 struct samr_LookupNames ln;
526 struct samr_Ids rids, types;
527 struct samr_OpenUser ou;
528 struct policy_handle u_handle;
529 union libnet_SetPassword r2;
530
531 ZERO_STRUCT(c);
532 /* prepare connect to the SAMR pipe of users domain PDC */
533 c.level = LIBNET_RPC_CONNECT_PDC;
534 c.in.name = r->samr.in.domain_name;
535 c.in.dcerpc_iface = &ndr_table_samr;
536
537 /* 1. connect to the SAMR pipe of users domain PDC (maybe a standalone server or workstation) */
538 status = libnet_RpcConnect(ctx, mem_ctx, &c);
539 if (!NT_STATUS_IS_OK(status)) {
540 r->samr.out.error_string = talloc_asprintf(mem_ctx,
541 "Connection to SAMR pipe of PDC of domain '%s' failed: %s",
542 r->samr.in.domain_name, nt_errstr(status));
543 return status;
544 }
545
546 /* prepare samr_Connect */
547 ZERO_STRUCT(p_handle);
548 sc.in.system_name = NULL;
549 sc.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
550 sc.out.connect_handle = &p_handle;
551
552 /* 2. do a samr_Connect to get a policy handle */
553 status = dcerpc_samr_Connect_r(c.out.dcerpc_pipe->binding_handle, mem_ctx, &sc);
554 if (NT_STATUS_IS_OK(status) && !NT_STATUS_IS_OK(sc.out.result)) {
555 status = sc.out.result;
556 }
557 if (!NT_STATUS_IS_OK(status)) {
558 r->samr.out.error_string = talloc_asprintf(mem_ctx,
559 "samr_Connect failed: %s",
560 nt_errstr(status));
561 goto disconnect;
562 }
563
564 /* prepare samr_LookupDomain */
565 d_name.string = r->samr.in.domain_name;
566 ld.in.connect_handle = &p_handle;
567 ld.in.domain_name = &d_name;
568 ld.out.sid = &sid;
569
570 /* 3. do a samr_LookupDomain to get the domain sid */
571 status = dcerpc_samr_LookupDomain_r(c.out.dcerpc_pipe->binding_handle, mem_ctx, &ld);
572 if (NT_STATUS_IS_OK(status) && !NT_STATUS_IS_OK(ld.out.result)) {
573 status = ld.out.result;
574 }
575 if (!NT_STATUS_IS_OK(status)) {
576 r->samr.out.error_string = talloc_asprintf(mem_ctx,
577 "samr_LookupDomain for [%s] failed: %s",
578 r->samr.in.domain_name, nt_errstr(status));
579 goto disconnect;
580 }
581
582 /* prepare samr_OpenDomain */
583 ZERO_STRUCT(d_handle);
584 od.in.connect_handle = &p_handle;
585 od.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
586 od.in.sid = *ld.out.sid;
587 od.out.domain_handle = &d_handle;
588
589 /* 4. do a samr_OpenDomain to get a domain handle */
590 status = dcerpc_samr_OpenDomain_r(c.out.dcerpc_pipe->binding_handle, mem_ctx, &od);
591 if (NT_STATUS_IS_OK(status) && !NT_STATUS_IS_OK(od.out.result)) {
592 status = od.out.result;
593 }
594 if (!NT_STATUS_IS_OK(status)) {
595 r->samr.out.error_string = talloc_asprintf(mem_ctx,
596 "samr_OpenDomain for [%s] failed: %s",
597 r->samr.in.domain_name, nt_errstr(status));
598 goto disconnect;
599 }
600
601 /* prepare samr_LookupNames */
602 ln.in.domain_handle = &d_handle;
603 ln.in.num_names = 1;
604 ln.in.names = talloc_array(mem_ctx, struct lsa_String, 1);
605 ln.out.rids = &rids;
606 ln.out.types = &types;
607 if (!ln.in.names) {
608 r->samr.out.error_string = "Out of Memory";
609 return NT_STATUS_NO_MEMORY;
610 }
611 ln.in.names[0].string = r->samr.in.account_name;
612
613 /* 5. do a samr_LookupNames to get the users rid */
614 status = dcerpc_samr_LookupNames_r(c.out.dcerpc_pipe->binding_handle, mem_ctx, &ln);
615 if (NT_STATUS_IS_OK(status) && !NT_STATUS_IS_OK(ln.out.result)) {
616 status = ln.out.result;
617 }
618 if (!NT_STATUS_IS_OK(status)) {
619 r->samr.out.error_string = talloc_asprintf(mem_ctx,
620 "samr_LookupNames for [%s] failed: %s",
621 r->samr.in.account_name, nt_errstr(status));
622 goto disconnect;
623 }
624
625 /* check if we got one RID for the user */
626 if (ln.out.rids->count != 1) {
627 r->samr.out.error_string = talloc_asprintf(mem_ctx,
628 "samr_LookupNames for [%s] returns %d RIDs",
629 r->samr.in.account_name, ln.out.rids->count);
630 status = NT_STATUS_INVALID_PARAMETER;
631 goto disconnect;
632 }
633
634 /* prepare samr_OpenUser */
635 ZERO_STRUCT(u_handle);
636 ou.in.domain_handle = &d_handle;
637 ou.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
638 ou.in.rid = ln.out.rids->ids[0];
639 ou.out.user_handle = &u_handle;
640
641 /* 6. do a samr_OpenUser to get a user handle */
642 status = dcerpc_samr_OpenUser_r(c.out.dcerpc_pipe->binding_handle, mem_ctx, &ou);
643 if (NT_STATUS_IS_OK(status) && !NT_STATUS_IS_OK(ou.out.result)) {
644 status = ou.out.result;
645 }
646 if (!NT_STATUS_IS_OK(status)) {
647 r->samr.out.error_string = talloc_asprintf(mem_ctx,
648 "samr_OpenUser for [%s] failed: %s",
649 r->samr.in.account_name, nt_errstr(status));
650 goto disconnect;
651 }
652
653 r2.samr_handle.level = LIBNET_SET_PASSWORD_SAMR_HANDLE;
654 r2.samr_handle.in.account_name = r->samr.in.account_name;
655 r2.samr_handle.in.newpassword = r->samr.in.newpassword;
656 r2.samr_handle.in.user_handle = &u_handle;
657 r2.samr_handle.in.dcerpc_pipe = c.out.dcerpc_pipe;
658 r2.samr_handle.in.info21 = NULL;
659
660 status = libnet_SetPassword(ctx, mem_ctx, &r2);
661
662 r->generic.out.error_string = r2.samr_handle.out.error_string;
663
664disconnect:
665 /* close connection */
666 talloc_unlink(ctx, c.out.dcerpc_pipe);
667
668 return status;
669}
670
671static NTSTATUS libnet_SetPassword_generic(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r)
672{
673 NTSTATUS status;
674 union libnet_SetPassword r2;
675
676 r2.samr.level = LIBNET_SET_PASSWORD_SAMR;
677 r2.samr.in.account_name = r->generic.in.account_name;
678 r2.samr.in.domain_name = r->generic.in.domain_name;
679 r2.samr.in.newpassword = r->generic.in.newpassword;
680
681 r->generic.out.error_string = "Unknown Error";
682 status = libnet_SetPassword(ctx, mem_ctx, &r2);
683
684 r->generic.out.error_string = r2.samr.out.error_string;
685
686 return status;
687}
688
689NTSTATUS libnet_SetPassword(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r)
690{
691 switch (r->generic.level) {
692 case LIBNET_SET_PASSWORD_GENERIC:
693 return libnet_SetPassword_generic(ctx, mem_ctx, r);
694 case LIBNET_SET_PASSWORD_SAMR:
695 return libnet_SetPassword_samr(ctx, mem_ctx, r);
696 case LIBNET_SET_PASSWORD_SAMR_HANDLE:
697 return libnet_SetPassword_samr_handle(ctx, mem_ctx, r);
698 case LIBNET_SET_PASSWORD_SAMR_HANDLE_26:
699 return libnet_SetPassword_samr_handle_26(ctx, mem_ctx, r);
700 case LIBNET_SET_PASSWORD_SAMR_HANDLE_25:
701 return libnet_SetPassword_samr_handle_25(ctx, mem_ctx, r);
702 case LIBNET_SET_PASSWORD_SAMR_HANDLE_24:
703 return libnet_SetPassword_samr_handle_24(ctx, mem_ctx, r);
704 case LIBNET_SET_PASSWORD_SAMR_HANDLE_23:
705 return libnet_SetPassword_samr_handle_23(ctx, mem_ctx, r);
706 case LIBNET_SET_PASSWORD_KRB5:
707 return NT_STATUS_NOT_IMPLEMENTED;
708 case LIBNET_SET_PASSWORD_LDAP:
709 return NT_STATUS_NOT_IMPLEMENTED;
710 case LIBNET_SET_PASSWORD_RAP:
711 return NT_STATUS_NOT_IMPLEMENTED;
712 }
713
714 return NT_STATUS_INVALID_LEVEL;
715}
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