source: vendor/3.5.2/source4/libnet/libnet_passwd.c

Last change on this file was 414, checked in by Herwig Bauernfeind, 16 years ago

Samba 3.5.0: Initial import
File size: 22.6 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 samr_ChangeReject *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(c.out.dcerpc_pipe, mem_ctx, &pw3);
105 if (!NT_STATUS_EQUAL(status, NT_STATUS_NET_WRITE_FAULT)) {
106 if (!NT_STATUS_IS_OK(status)) {
107 r->samr.out.error_string = talloc_asprintf(mem_ctx,
108 "samr_ChangePasswordUser3 failed: %s",
109 nt_errstr(status));
110 r->samr.out.error_string = talloc_asprintf(mem_ctx,
111 "samr_ChangePasswordUser3 for '%s\\%s' failed: %s",
112 r->samr.in.domain_name, r->samr.in.account_name,
113 nt_errstr(status));
114 }
115 goto disconnect;
116 }
117
118 /* prepare samr_ChangePasswordUser2 */
119 encode_pw_buffer(lm_pass.data, r->samr.in.newpassword, STR_ASCII|STR_TERMINATE);
120 arcfour_crypt(lm_pass.data, old_lm_hash, 516);
121 E_old_pw_hash(new_lm_hash, old_lm_hash, lm_verifier.hash);
122
123 encode_pw_buffer(nt_pass.data, r->samr.in.newpassword, STR_UNICODE);
124 arcfour_crypt(nt_pass.data, old_nt_hash, 516);
125 E_old_pw_hash(new_nt_hash, old_nt_hash, nt_verifier.hash);
126
127 pw2.in.server = &server;
128 pw2.in.account = &account;
129 pw2.in.nt_password = &nt_pass;
130 pw2.in.nt_verifier = &nt_verifier;
131 pw2.in.lm_change = 1;
132 pw2.in.lm_password = &lm_pass;
133 pw2.in.lm_verifier = &lm_verifier;
134
135 /* 3. try samr_ChangePasswordUser2 */
136 status = dcerpc_samr_ChangePasswordUser2(c.out.dcerpc_pipe, mem_ctx, &pw2);
137 if (!NT_STATUS_EQUAL(status, NT_STATUS_NET_WRITE_FAULT)) {
138 if (!NT_STATUS_IS_OK(status)) {
139 r->samr.out.error_string = talloc_asprintf(mem_ctx,
140 "samr_ChangePasswordUser2 for '%s\\%s' failed: %s",
141 r->samr.in.domain_name, r->samr.in.account_name,
142 nt_errstr(status));
143 }
144 goto disconnect;
145 }
146
147
148 /* prepare samr_OemChangePasswordUser2 */
149 a_server.string = talloc_asprintf(mem_ctx, "\\\\%s", dcerpc_server_name(c.out.dcerpc_pipe));
150 a_account.string = r->samr.in.account_name;
151
152 encode_pw_buffer(lm_pass.data, r->samr.in.newpassword, STR_ASCII);
153 arcfour_crypt(lm_pass.data, old_lm_hash, 516);
154 E_old_pw_hash(new_lm_hash, old_lm_hash, lm_verifier.hash);
155
156 oe2.in.server = &a_server;
157 oe2.in.account = &a_account;
158 oe2.in.password = &lm_pass;
159 oe2.in.hash = &lm_verifier;
160
161 /* 4. try samr_OemChangePasswordUser2 */
162 status = dcerpc_samr_OemChangePasswordUser2(c.out.dcerpc_pipe, mem_ctx, &oe2);
163 if (!NT_STATUS_EQUAL(status, NT_STATUS_NET_WRITE_FAULT)) {
164 if (!NT_STATUS_IS_OK(oe2.out.result)) {
165 r->samr.out.error_string = talloc_asprintf(mem_ctx,
166 "samr_OemChangePasswordUser2 for '%s\\%s' failed: %s",
167 r->samr.in.domain_name, r->samr.in.account_name,
168 nt_errstr(status));
169 }
170 goto disconnect;
171 }
172
173#if 0
174 /* prepare samr_ChangePasswordUser */
175 E_old_pw_hash(new_lm_hash, old_lm_hash, hash1.hash);
176 E_old_pw_hash(old_lm_hash, new_lm_hash, hash2.hash);
177 E_old_pw_hash(new_nt_hash, old_nt_hash, hash3.hash);
178 E_old_pw_hash(old_nt_hash, new_nt_hash, hash4.hash);
179 E_old_pw_hash(old_lm_hash, new_nt_hash, hash5.hash);
180 E_old_pw_hash(old_nt_hash, new_lm_hash, hash6.hash);
181
182 /* TODO: ask for a user_handle */
183 pw.in.handle = &user_handle;
184 pw.in.lm_present = 1;
185 pw.in.old_lm_crypted = &hash1;
186 pw.in.new_lm_crypted = &hash2;
187 pw.in.nt_present = 1;
188 pw.in.old_nt_crypted = &hash3;
189 pw.in.new_nt_crypted = &hash4;
190 pw.in.cross1_present = 1;
191 pw.in.nt_cross = &hash5;
192 pw.in.cross2_present = 1;
193 pw.in.lm_cross = &hash6;
194
195 /* 5. try samr_ChangePasswordUser */
196 status = dcerpc_samr_ChangePasswordUser(c.pdc.out.dcerpc_pipe, mem_ctx, &pw);
197 if (!NT_STATUS_IS_OK(status)) {
198 r->samr.out.error_string = talloc_asprintf(mem_ctx,
199 "samr_ChangePasswordUser failed: %s",
200 nt_errstr(status));
201 goto disconnect;
202 }
203
204 /* check result of samr_ChangePasswordUser */
205 if (!NT_STATUS_IS_OK(pw.out.result)) {
206 r->samr.out.error_string = talloc_asprintf(mem_ctx,
207 "samr_ChangePasswordUser for '%s\\%s' failed: %s",
208 r->samr.in.domain_name, r->samr.in.account_name,
209 nt_errstr(pw.out.result));
210 if (NT_STATUS_EQUAL(pw.out.result, NT_STATUS_PASSWORD_RESTRICTION)) {
211 status = pw.out.result;
212 goto disconnect;
213 }
214 goto disconnect;
215 }
216#endif
217disconnect:
218 /* close connection */
219 talloc_free(c.out.dcerpc_pipe);
220
221 return status;
222}
223
224static NTSTATUS libnet_ChangePassword_generic(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_ChangePassword *r)
225{
226 NTSTATUS status;
227 union libnet_ChangePassword r2;
228
229 r2.samr.level = LIBNET_CHANGE_PASSWORD_SAMR;
230 r2.samr.in.account_name = r->generic.in.account_name;
231 r2.samr.in.domain_name = r->generic.in.domain_name;
232 r2.samr.in.oldpassword = r->generic.in.oldpassword;
233 r2.samr.in.newpassword = r->generic.in.newpassword;
234
235 status = libnet_ChangePassword(ctx, mem_ctx, &r2);
236
237 r->generic.out.error_string = r2.samr.out.error_string;
238
239 return status;
240}
241
242NTSTATUS libnet_ChangePassword(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_ChangePassword *r)
243{
244 switch (r->generic.level) {
245 case LIBNET_CHANGE_PASSWORD_GENERIC:
246 return libnet_ChangePassword_generic(ctx, mem_ctx, r);
247 case LIBNET_CHANGE_PASSWORD_SAMR:
248 return libnet_ChangePassword_samr(ctx, mem_ctx, r);
249 case LIBNET_CHANGE_PASSWORD_KRB5:
250 return NT_STATUS_NOT_IMPLEMENTED;
251 case LIBNET_CHANGE_PASSWORD_LDAP:
252 return NT_STATUS_NOT_IMPLEMENTED;
253 case LIBNET_CHANGE_PASSWORD_RAP:
254 return NT_STATUS_NOT_IMPLEMENTED;
255 }
256
257 return NT_STATUS_INVALID_LEVEL;
258}
259
260static NTSTATUS libnet_SetPassword_samr_handle_26(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r)
261{
262 NTSTATUS status;
263 struct samr_SetUserInfo2 sui;
264 union samr_UserInfo u_info;
265 DATA_BLOB session_key;
266 DATA_BLOB confounded_session_key = data_blob_talloc(mem_ctx, NULL, 16);
267 uint8_t confounder[16];
268 struct MD5Context md5;
269
270 if (r->samr_handle.in.info21) {
271 return NT_STATUS_INVALID_PARAMETER_MIX;
272 }
273
274 /* prepare samr_SetUserInfo2 level 26 */
275 ZERO_STRUCT(u_info);
276 encode_pw_buffer(u_info.info26.password.data, r->samr_handle.in.newpassword, STR_UNICODE);
277 u_info.info26.password_expired = 0;
278
279 status = dcerpc_fetch_session_key(r->samr_handle.in.dcerpc_pipe, &session_key);
280 if (!NT_STATUS_IS_OK(status)) {
281 r->samr_handle.out.error_string = talloc_asprintf(mem_ctx,
282 "dcerpc_fetch_session_key failed: %s",
283 nt_errstr(status));
284 return status;
285 }
286
287 generate_random_buffer((uint8_t *)confounder, 16);
288
289 MD5Init(&md5);
290 MD5Update(&md5, confounder, 16);
291 MD5Update(&md5, session_key.data, session_key.length);
292 MD5Final(confounded_session_key.data, &md5);
293
294 arcfour_crypt_blob(u_info.info26.password.data, 516, &confounded_session_key);
295 memcpy(&u_info.info26.password.data[516], confounder, 16);
296
297 sui.in.user_handle = r->samr_handle.in.user_handle;
298 sui.in.info = &u_info;
299 sui.in.level = 26;
300
301 /* 7. try samr_SetUserInfo2 level 26 to set the password */
302 status = dcerpc_samr_SetUserInfo2(r->samr_handle.in.dcerpc_pipe, mem_ctx, &sui);
303 /* check result of samr_SetUserInfo2 level 26 */
304 if (!NT_STATUS_IS_OK(status)) {
305 r->samr_handle.out.error_string
306 = talloc_asprintf(mem_ctx,
307 "SetUserInfo2 level 26 for [%s] failed: %s",
308 r->samr_handle.in.account_name, nt_errstr(status));
309 }
310 return status;
311}
312
313static NTSTATUS libnet_SetPassword_samr_handle_25(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r)
314{
315 NTSTATUS status;
316 struct samr_SetUserInfo2 sui;
317 union samr_UserInfo u_info;
318 DATA_BLOB session_key;
319 DATA_BLOB confounded_session_key = data_blob_talloc(mem_ctx, NULL, 16);
320 uint8_t confounder[16];
321 struct MD5Context md5;
322
323 if (!r->samr_handle.in.info21) {
324 return NT_STATUS_INVALID_PARAMETER_MIX;
325 }
326
327 /* prepare samr_SetUserInfo2 level 25 */
328 ZERO_STRUCT(u_info);
329 u_info.info25.info = *r->samr_handle.in.info21;
330 u_info.info25.info.fields_present |= SAMR_FIELD_NT_PASSWORD_PRESENT;
331 encode_pw_buffer(u_info.info25.password.data, r->samr_handle.in.newpassword, STR_UNICODE);
332
333 status = dcerpc_fetch_session_key(r->samr_handle.in.dcerpc_pipe, &session_key);
334 if (!NT_STATUS_IS_OK(status)) {
335 r->samr_handle.out.error_string = talloc_asprintf(mem_ctx,
336 "dcerpc_fetch_session_key failed: %s",
337 nt_errstr(status));
338 return status;
339 }
340
341 generate_random_buffer((uint8_t *)confounder, 16);
342
343 MD5Init(&md5);
344 MD5Update(&md5, confounder, 16);
345 MD5Update(&md5, session_key.data, session_key.length);
346 MD5Final(confounded_session_key.data, &md5);
347
348 arcfour_crypt_blob(u_info.info25.password.data, 516, &confounded_session_key);
349 memcpy(&u_info.info25.password.data[516], confounder, 16);
350
351 sui.in.user_handle = r->samr_handle.in.user_handle;
352 sui.in.info = &u_info;
353 sui.in.level = 25;
354
355 /* 8. try samr_SetUserInfo2 level 25 to set the password */
356 status = dcerpc_samr_SetUserInfo2(r->samr_handle.in.dcerpc_pipe, mem_ctx, &sui);
357 if (!NT_STATUS_IS_OK(status)) {
358 r->samr_handle.out.error_string
359 = talloc_asprintf(mem_ctx,
360 "SetUserInfo2 level 25 for [%s] failed: %s",
361 r->samr_handle.in.account_name, nt_errstr(status));
362 }
363 return status;
364}
365
366static NTSTATUS libnet_SetPassword_samr_handle_24(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r)
367{
368 NTSTATUS status;
369 struct samr_SetUserInfo2 sui;
370 union samr_UserInfo u_info;
371 DATA_BLOB session_key;
372
373 if (r->samr_handle.in.info21) {
374 return NT_STATUS_INVALID_PARAMETER_MIX;
375 }
376
377 /* prepare samr_SetUserInfo2 level 24 */
378 ZERO_STRUCT(u_info);
379 encode_pw_buffer(u_info.info24.password.data, r->samr_handle.in.newpassword, STR_UNICODE);
380 u_info.info24.password_expired = 0;
381
382 status = dcerpc_fetch_session_key(r->samr_handle.in.dcerpc_pipe, &session_key);
383 if (!NT_STATUS_IS_OK(status)) {
384 r->samr_handle.out.error_string = talloc_asprintf(mem_ctx,
385 "dcerpc_fetch_session_key failed: %s",
386 nt_errstr(status));
387 return status;
388 }
389
390 arcfour_crypt_blob(u_info.info24.password.data, 516, &session_key);
391
392 sui.in.user_handle = r->samr_handle.in.user_handle;
393 sui.in.info = &u_info;
394 sui.in.level = 24;
395
396 /* 9. try samr_SetUserInfo2 level 24 to set the password */
397 status = dcerpc_samr_SetUserInfo2(r->samr_handle.in.dcerpc_pipe, mem_ctx, &sui);
398 if (!NT_STATUS_IS_OK(status)) {
399 r->samr_handle.out.error_string
400 = talloc_asprintf(mem_ctx,
401 "SetUserInfo2 level 24 for [%s] failed: %s",
402 r->samr_handle.in.account_name, nt_errstr(status));
403 }
404 return status;
405}
406
407static NTSTATUS libnet_SetPassword_samr_handle_23(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r)
408{
409 NTSTATUS status;
410 struct samr_SetUserInfo2 sui;
411 union samr_UserInfo u_info;
412 DATA_BLOB session_key;
413
414 if (!r->samr_handle.in.info21) {
415 return NT_STATUS_INVALID_PARAMETER_MIX;
416 }
417
418 /* prepare samr_SetUserInfo2 level 23 */
419 ZERO_STRUCT(u_info);
420 u_info.info23.info = *r->samr_handle.in.info21;
421 u_info.info23.info.fields_present |= SAMR_FIELD_NT_PASSWORD_PRESENT;
422 encode_pw_buffer(u_info.info23.password.data, r->samr_handle.in.newpassword, STR_UNICODE);
423
424 status = dcerpc_fetch_session_key(r->samr_handle.in.dcerpc_pipe, &session_key);
425 if (!NT_STATUS_IS_OK(status)) {
426 r->samr_handle.out.error_string
427 = talloc_asprintf(mem_ctx,
428 "dcerpc_fetch_session_key failed: %s",
429 nt_errstr(status));
430 return status;
431 }
432
433 arcfour_crypt_blob(u_info.info23.password.data, 516, &session_key);
434
435 sui.in.user_handle = r->samr_handle.in.user_handle;
436 sui.in.info = &u_info;
437 sui.in.level = 23;
438
439 /* 10. try samr_SetUserInfo2 level 23 to set the password */
440 status = dcerpc_samr_SetUserInfo2(r->samr_handle.in.dcerpc_pipe, mem_ctx, &sui);
441 if (!NT_STATUS_IS_OK(status)) {
442 r->samr_handle.out.error_string
443 = talloc_asprintf(mem_ctx,
444 "SetUserInfo2 level 23 for [%s] failed: %s",
445 r->samr_handle.in.account_name, nt_errstr(status));
446 }
447 return status;
448}
449
450/*
451 * 1. try samr_SetUserInfo2 level 26 to set the password
452 * 2. try samr_SetUserInfo2 level 25 to set the password
453 * 3. try samr_SetUserInfo2 level 24 to set the password
454 * 4. try samr_SetUserInfo2 level 23 to set the password
455*/
456static NTSTATUS libnet_SetPassword_samr_handle(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r)
457{
458
459 NTSTATUS status;
460 enum libnet_SetPassword_level levels[] = {
461 LIBNET_SET_PASSWORD_SAMR_HANDLE_26,
462 LIBNET_SET_PASSWORD_SAMR_HANDLE_25,
463 LIBNET_SET_PASSWORD_SAMR_HANDLE_24,
464 LIBNET_SET_PASSWORD_SAMR_HANDLE_23,
465 };
466 int i;
467
468 for (i=0; i < ARRAY_SIZE(levels); i++) {
469 r->generic.level = levels[i];
470 status = libnet_SetPassword(ctx, mem_ctx, r);
471 if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_INFO_CLASS)
472 || NT_STATUS_EQUAL(status, NT_STATUS_INVALID_PARAMETER_MIX)
473 || NT_STATUS_EQUAL(status, NT_STATUS_NET_WRITE_FAULT)) {
474 /* Try another password set mechanism */
475 continue;
476 }
477 break;
478 }
479
480 return status;
481}
482/*
483 * set a password with DCERPC/SAMR calls
484 * 1. connect to the SAMR pipe of users domain PDC (maybe a standalone server or workstation)
485 * is it correct to contact the the pdc of the domain of the user who's password should be set?
486 * 2. do a samr_Connect to get a policy handle
487 * 3. do a samr_LookupDomain to get the domain sid
488 * 4. do a samr_OpenDomain to get a domain handle
489 * 5. do a samr_LookupNames to get the users rid
490 * 6. do a samr_OpenUser to get a user handle
491 * 7 call libnet_SetPassword_samr_handle to set the password
492 */
493static NTSTATUS libnet_SetPassword_samr(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r)
494{
495 NTSTATUS status;
496 struct libnet_RpcConnect c;
497 struct samr_Connect sc;
498 struct policy_handle p_handle;
499 struct samr_LookupDomain ld;
500 struct dom_sid2 *sid = NULL;
501 struct lsa_String d_name;
502 struct samr_OpenDomain od;
503 struct policy_handle d_handle;
504 struct samr_LookupNames ln;
505 struct samr_Ids rids, types;
506 struct samr_OpenUser ou;
507 struct policy_handle u_handle;
508 union libnet_SetPassword r2;
509
510 ZERO_STRUCT(c);
511 /* prepare connect to the SAMR pipe of users domain PDC */
512 c.level = LIBNET_RPC_CONNECT_PDC;
513 c.in.name = r->samr.in.domain_name;
514 c.in.dcerpc_iface = &ndr_table_samr;
515
516 /* 1. connect to the SAMR pipe of users domain PDC (maybe a standalone server or workstation) */
517 status = libnet_RpcConnect(ctx, mem_ctx, &c);
518 if (!NT_STATUS_IS_OK(status)) {
519 r->samr.out.error_string = talloc_asprintf(mem_ctx,
520 "Connection to SAMR pipe of PDC of domain '%s' failed: %s",
521 r->samr.in.domain_name, nt_errstr(status));
522 return status;
523 }
524
525 /* prepare samr_Connect */
526 ZERO_STRUCT(p_handle);
527 sc.in.system_name = NULL;
528 sc.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
529 sc.out.connect_handle = &p_handle;
530
531 /* 2. do a samr_Connect to get a policy handle */
532 status = dcerpc_samr_Connect(c.out.dcerpc_pipe, mem_ctx, &sc);
533 if (!NT_STATUS_IS_OK(status)) {
534 r->samr.out.error_string = talloc_asprintf(mem_ctx,
535 "samr_Connect failed: %s",
536 nt_errstr(status));
537 goto disconnect;
538 }
539
540 /* prepare samr_LookupDomain */
541 d_name.string = r->samr.in.domain_name;
542 ld.in.connect_handle = &p_handle;
543 ld.in.domain_name = &d_name;
544 ld.out.sid = &sid;
545
546 /* 3. do a samr_LookupDomain to get the domain sid */
547 status = dcerpc_samr_LookupDomain(c.out.dcerpc_pipe, mem_ctx, &ld);
548 if (!NT_STATUS_IS_OK(status)) {
549 r->samr.out.error_string = talloc_asprintf(mem_ctx,
550 "samr_LookupDomain for [%s] failed: %s",
551 r->samr.in.domain_name, nt_errstr(status));
552 goto disconnect;
553 }
554
555 /* prepare samr_OpenDomain */
556 ZERO_STRUCT(d_handle);
557 od.in.connect_handle = &p_handle;
558 od.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
559 od.in.sid = *ld.out.sid;
560 od.out.domain_handle = &d_handle;
561
562 /* 4. do a samr_OpenDomain to get a domain handle */
563 status = dcerpc_samr_OpenDomain(c.out.dcerpc_pipe, mem_ctx, &od);
564 if (!NT_STATUS_IS_OK(status)) {
565 r->samr.out.error_string = talloc_asprintf(mem_ctx,
566 "samr_OpenDomain for [%s] failed: %s",
567 r->samr.in.domain_name, nt_errstr(status));
568 goto disconnect;
569 }
570
571 /* prepare samr_LookupNames */
572 ln.in.domain_handle = &d_handle;
573 ln.in.num_names = 1;
574 ln.in.names = talloc_array(mem_ctx, struct lsa_String, 1);
575 ln.out.rids = &rids;
576 ln.out.types = &types;
577 if (!ln.in.names) {
578 r->samr.out.error_string = "Out of Memory";
579 return NT_STATUS_NO_MEMORY;
580 }
581 ln.in.names[0].string = r->samr.in.account_name;
582
583 /* 5. do a samr_LookupNames to get the users rid */
584 status = dcerpc_samr_LookupNames(c.out.dcerpc_pipe, mem_ctx, &ln);
585 if (!NT_STATUS_IS_OK(status)) {
586 r->samr.out.error_string = talloc_asprintf(mem_ctx,
587 "samr_LookupNames for [%s] failed: %s",
588 r->samr.in.account_name, nt_errstr(status));
589 goto disconnect;
590 }
591
592 /* check if we got one RID for the user */
593 if (ln.out.rids->count != 1) {
594 r->samr.out.error_string = talloc_asprintf(mem_ctx,
595 "samr_LookupNames for [%s] returns %d RIDs",
596 r->samr.in.account_name, ln.out.rids->count);
597 status = NT_STATUS_INVALID_PARAMETER;
598 goto disconnect;
599 }
600
601 /* prepare samr_OpenUser */
602 ZERO_STRUCT(u_handle);
603 ou.in.domain_handle = &d_handle;
604 ou.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
605 ou.in.rid = ln.out.rids->ids[0];
606 ou.out.user_handle = &u_handle;
607
608 /* 6. do a samr_OpenUser to get a user handle */
609 status = dcerpc_samr_OpenUser(c.out.dcerpc_pipe, mem_ctx, &ou);
610 if (!NT_STATUS_IS_OK(status)) {
611 r->samr.out.error_string = talloc_asprintf(mem_ctx,
612 "samr_OpenUser for [%s] failed: %s",
613 r->samr.in.account_name, nt_errstr(status));
614 goto disconnect;
615 }
616
617 r2.samr_handle.level = LIBNET_SET_PASSWORD_SAMR_HANDLE;
618 r2.samr_handle.in.account_name = r->samr.in.account_name;
619 r2.samr_handle.in.newpassword = r->samr.in.newpassword;
620 r2.samr_handle.in.user_handle = &u_handle;
621 r2.samr_handle.in.dcerpc_pipe = c.out.dcerpc_pipe;
622 r2.samr_handle.in.info21 = NULL;
623
624 status = libnet_SetPassword(ctx, mem_ctx, &r2);
625
626 r->generic.out.error_string = r2.samr_handle.out.error_string;
627
628disconnect:
629 /* close connection */
630 talloc_free(c.out.dcerpc_pipe);
631
632 return status;
633}
634
635static NTSTATUS libnet_SetPassword_generic(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r)
636{
637 NTSTATUS status;
638 union libnet_SetPassword r2;
639
640 r2.samr.level = LIBNET_SET_PASSWORD_SAMR;
641 r2.samr.in.account_name = r->generic.in.account_name;
642 r2.samr.in.domain_name = r->generic.in.domain_name;
643 r2.samr.in.newpassword = r->generic.in.newpassword;
644
645 r->generic.out.error_string = "Unknown Error";
646 status = libnet_SetPassword(ctx, mem_ctx, &r2);
647
648 r->generic.out.error_string = r2.samr.out.error_string;
649
650 return status;
651}
652
653NTSTATUS libnet_SetPassword(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r)
654{
655 switch (r->generic.level) {
656 case LIBNET_SET_PASSWORD_GENERIC:
657 return libnet_SetPassword_generic(ctx, mem_ctx, r);
658 case LIBNET_SET_PASSWORD_SAMR:
659 return libnet_SetPassword_samr(ctx, mem_ctx, r);
660 case LIBNET_SET_PASSWORD_SAMR_HANDLE:
661 return libnet_SetPassword_samr_handle(ctx, mem_ctx, r);
662 case LIBNET_SET_PASSWORD_SAMR_HANDLE_26:
663 return libnet_SetPassword_samr_handle_26(ctx, mem_ctx, r);
664 case LIBNET_SET_PASSWORD_SAMR_HANDLE_25:
665 return libnet_SetPassword_samr_handle_25(ctx, mem_ctx, r);
666 case LIBNET_SET_PASSWORD_SAMR_HANDLE_24:
667 return libnet_SetPassword_samr_handle_24(ctx, mem_ctx, r);
668 case LIBNET_SET_PASSWORD_SAMR_HANDLE_23:
669 return libnet_SetPassword_samr_handle_23(ctx, mem_ctx, r);
670 case LIBNET_SET_PASSWORD_KRB5:
671 return NT_STATUS_NOT_IMPLEMENTED;
672 case LIBNET_SET_PASSWORD_LDAP:
673 return NT_STATUS_NOT_IMPLEMENTED;
674 case LIBNET_SET_PASSWORD_RAP:
675 return NT_STATUS_NOT_IMPLEMENTED;
676 }
677
678 return NT_STATUS_INVALID_LEVEL;
679}
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