source: branches/samba-3.5.x/source4/libnet/libnet_join.c

Last change on this file was 414, checked in by Herwig Bauernfeind, 15 years ago

Samba 3.5.0: Initial import
File size: 31.3 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 Copyright (C) Brad Henry 2005
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
20*/
21
22#include "includes.h"
23#include "libnet/libnet.h"
24#include "librpc/gen_ndr/ndr_drsuapi_c.h"
25#include "lib/ldb/include/ldb.h"
26#include "lib/ldb/include/ldb_errors.h"
27#include "param/secrets.h"
28#include "dsdb/samdb/samdb.h"
29#include "ldb_wrap.h"
30#include "../lib/util/util_ldb.h"
31#include "libcli/security/security.h"
32#include "auth/credentials/credentials.h"
33#include "auth/credentials/credentials_krb5.h"
34#include "librpc/gen_ndr/ndr_samr_c.h"
35#include "param/param.h"
36#include "param/provision.h"
37
38/*
39 * complete a domain join, when joining to a AD domain:
40 * 1.) connect and bind to the DRSUAPI pipe
41 * 2.) do a DsCrackNames() to find the machine account dn
42 * 3.) connect to LDAP
43 * 4.) do an ldap search to find the "msDS-KeyVersionNumber" of the machine account
44 * 5.) set the servicePrincipalName's of the machine account via LDAP, (maybe we should use DsWriteAccountSpn()...)
45 * 6.) do a DsCrackNames() to find the domain dn
46 * 7.) find out Site specific stuff, look at libnet_JoinSite() for details
47 */
48static NTSTATUS libnet_JoinADSDomain(struct libnet_context *ctx, struct libnet_JoinDomain *r)
49{
50 NTSTATUS status;
51
52 TALLOC_CTX *tmp_ctx;
53
54 const char *realm = r->out.realm;
55
56 struct dcerpc_binding *samr_binding = r->out.samr_binding;
57
58 struct dcerpc_pipe *drsuapi_pipe;
59 struct dcerpc_binding *drsuapi_binding;
60 struct drsuapi_DsBind r_drsuapi_bind;
61 struct drsuapi_DsCrackNames r_crack_names;
62 struct drsuapi_DsNameString names[1];
63 struct policy_handle drsuapi_bind_handle;
64 struct GUID drsuapi_bind_guid;
65
66 struct ldb_context *remote_ldb;
67 struct ldb_dn *account_dn;
68 const char *account_dn_str;
69 const char *remote_ldb_url;
70 struct ldb_result *res;
71 struct ldb_message *msg;
72
73 int ret, rtn;
74
75 const char * const attrs[] = {
76 "msDS-KeyVersionNumber",
77 "servicePrincipalName",
78 "dNSHostName",
79 "objectGUID",
80 NULL,
81 };
82
83 r->out.error_string = NULL;
84
85 /* We need to convert between a samAccountName and domain to a
86 * DN in the directory. The correct way to do this is with
87 * DRSUAPI CrackNames */
88
89 /* Fiddle with the bindings, so get to DRSUAPI on
90 * NCACN_IP_TCP, sealed */
91 tmp_ctx = talloc_named(r, 0, "libnet_JoinADSDomain temp context");
92 if (!tmp_ctx) {
93 r->out.error_string = NULL;
94 return NT_STATUS_NO_MEMORY;
95 }
96
97 drsuapi_binding = talloc(tmp_ctx, struct dcerpc_binding);
98 if (!drsuapi_binding) {
99 r->out.error_string = NULL;
100 talloc_free(tmp_ctx);
101 return NT_STATUS_NO_MEMORY;
102 }
103
104 *drsuapi_binding = *samr_binding;
105
106 /* DRSUAPI is only available on IP_TCP, and locally on NCALRPC */
107 if (drsuapi_binding->transport != NCALRPC) {
108 drsuapi_binding->transport = NCACN_IP_TCP;
109 }
110 drsuapi_binding->endpoint = NULL;
111 drsuapi_binding->flags |= DCERPC_SEAL;
112
113 status = dcerpc_pipe_connect_b(tmp_ctx,
114 &drsuapi_pipe,
115 drsuapi_binding,
116 &ndr_table_drsuapi,
117 ctx->cred,
118 ctx->event_ctx,
119 ctx->lp_ctx);
120 if (!NT_STATUS_IS_OK(status)) {
121 r->out.error_string = talloc_asprintf(r,
122 "Connection to DRSUAPI pipe of PDC of domain '%s' failed: %s",
123 r->out.domain_name,
124 nt_errstr(status));
125 talloc_free(tmp_ctx);
126 return status;
127 }
128
129 /* get a DRSUAPI pipe handle */
130 GUID_from_string(DRSUAPI_DS_BIND_GUID, &drsuapi_bind_guid);
131
132 r_drsuapi_bind.in.bind_guid = &drsuapi_bind_guid;
133 r_drsuapi_bind.in.bind_info = NULL;
134 r_drsuapi_bind.out.bind_handle = &drsuapi_bind_handle;
135
136 status = dcerpc_drsuapi_DsBind(drsuapi_pipe, tmp_ctx, &r_drsuapi_bind);
137 if (!NT_STATUS_IS_OK(status)) {
138 if (NT_STATUS_EQUAL(status, NT_STATUS_NET_WRITE_FAULT)) {
139 r->out.error_string
140 = talloc_asprintf(r,
141 "dcerpc_drsuapi_DsBind failed - %s",
142 dcerpc_errstr(tmp_ctx, drsuapi_pipe->last_fault_code));
143 talloc_free(tmp_ctx);
144 return status;
145 } else {
146 r->out.error_string
147 = talloc_asprintf(r,
148 "dcerpc_drsuapi_DsBind failed - %s",
149 nt_errstr(status));
150 talloc_free(tmp_ctx);
151 return status;
152 }
153 } else if (!W_ERROR_IS_OK(r_drsuapi_bind.out.result)) {
154 r->out.error_string
155 = talloc_asprintf(r,
156 "DsBind failed - %s",
157 win_errstr(r_drsuapi_bind.out.result));
158 talloc_free(tmp_ctx);
159 return NT_STATUS_UNSUCCESSFUL;
160 }
161
162 /* Actually 'crack' the names */
163 ZERO_STRUCT(r_crack_names);
164 r_crack_names.in.bind_handle = &drsuapi_bind_handle;
165 r_crack_names.in.level = 1;
166 r_crack_names.in.req = talloc(r, union drsuapi_DsNameRequest);
167 if (!r_crack_names.in.req) {
168 r->out.error_string = NULL;
169 talloc_free(tmp_ctx);
170 return NT_STATUS_NO_MEMORY;
171 }
172 r_crack_names.in.req->req1.codepage = 1252; /* western european */
173 r_crack_names.in.req->req1.language = 0x00000407; /* german */
174 r_crack_names.in.req->req1.count = 1;
175 r_crack_names.in.req->req1.names = names;
176 r_crack_names.in.req->req1.format_flags = DRSUAPI_DS_NAME_FLAG_NO_FLAGS;
177 r_crack_names.in.req->req1.format_offered = DRSUAPI_DS_NAME_FORMAT_SID_OR_SID_HISTORY;
178 r_crack_names.in.req->req1.format_desired = DRSUAPI_DS_NAME_FORMAT_FQDN_1779;
179 names[0].str = dom_sid_string(tmp_ctx, r->out.account_sid);
180 if (!names[0].str) {
181 r->out.error_string = NULL;
182 talloc_free(tmp_ctx);
183 return NT_STATUS_NO_MEMORY;
184 }
185
186 r_crack_names.out.ctr = talloc(r, union drsuapi_DsNameCtr);
187 r_crack_names.out.level_out = talloc(r, int32_t);
188 if (!r_crack_names.out.ctr || !r_crack_names.out.level_out) {
189 r->out.error_string = NULL;
190 talloc_free(tmp_ctx);
191 return NT_STATUS_NO_MEMORY;
192 }
193
194 status = dcerpc_drsuapi_DsCrackNames(drsuapi_pipe, tmp_ctx, &r_crack_names);
195 if (!NT_STATUS_IS_OK(status)) {
196 if (NT_STATUS_EQUAL(status, NT_STATUS_NET_WRITE_FAULT)) {
197 r->out.error_string
198 = talloc_asprintf(r,
199 "dcerpc_drsuapi_DsCrackNames for [%s] failed - %s",
200 names[0].str,
201 dcerpc_errstr(tmp_ctx, drsuapi_pipe->last_fault_code));
202 talloc_free(tmp_ctx);
203 return status;
204 } else {
205 r->out.error_string
206 = talloc_asprintf(r,
207 "dcerpc_drsuapi_DsCrackNames for [%s] failed - %s",
208 names[0].str,
209 nt_errstr(status));
210 talloc_free(tmp_ctx);
211 return status;
212 }
213 } else if (!W_ERROR_IS_OK(r_crack_names.out.result)) {
214 r->out.error_string
215 = talloc_asprintf(r,
216 "DsCrackNames failed - %s", win_errstr(r_crack_names.out.result));
217 talloc_free(tmp_ctx);
218 return NT_STATUS_UNSUCCESSFUL;
219 } else if (*r_crack_names.out.level_out != 1
220 || !r_crack_names.out.ctr->ctr1
221 || r_crack_names.out.ctr->ctr1->count != 1) {
222 r->out.error_string = talloc_asprintf(r, "DsCrackNames failed");
223 talloc_free(tmp_ctx);
224 return NT_STATUS_INVALID_PARAMETER;
225 } else if (r_crack_names.out.ctr->ctr1->array[0].status != DRSUAPI_DS_NAME_STATUS_OK) {
226 r->out.error_string = talloc_asprintf(r, "DsCrackNames failed: %d", r_crack_names.out.ctr->ctr1->array[0].status);
227 talloc_free(tmp_ctx);
228 return NT_STATUS_UNSUCCESSFUL;
229 } else if (r_crack_names.out.ctr->ctr1->array[0].result_name == NULL) {
230 r->out.error_string = talloc_asprintf(r, "DsCrackNames failed: no result name");
231 talloc_free(tmp_ctx);
232 return NT_STATUS_INVALID_PARAMETER;
233 }
234
235 /* Store the DN of our machine account. */
236 account_dn_str = r_crack_names.out.ctr->ctr1->array[0].result_name;
237
238 /* Now we know the user's DN, open with LDAP, read and modify a few things */
239
240 remote_ldb_url = talloc_asprintf(tmp_ctx, "ldap://%s",
241 drsuapi_binding->target_hostname);
242 if (!remote_ldb_url) {
243 r->out.error_string = NULL;
244 talloc_free(tmp_ctx);
245 return NT_STATUS_NO_MEMORY;
246 }
247
248 remote_ldb = ldb_wrap_connect(tmp_ctx, ctx->event_ctx, ctx->lp_ctx,
249 remote_ldb_url,
250 NULL, ctx->cred, 0, NULL);
251 if (!remote_ldb) {
252 r->out.error_string = NULL;
253 talloc_free(tmp_ctx);
254 return NT_STATUS_UNSUCCESSFUL;
255 }
256
257 account_dn = ldb_dn_new(tmp_ctx, remote_ldb, account_dn_str);
258 if (! ldb_dn_validate(account_dn)) {
259 r->out.error_string = talloc_asprintf(r, "Invalid account dn: %s",
260 account_dn_str);
261 talloc_free(tmp_ctx);
262 return NT_STATUS_UNSUCCESSFUL;
263 }
264
265 /* search for the user's record */
266 ret = ldb_search(remote_ldb, tmp_ctx, &res,
267 account_dn, LDB_SCOPE_BASE, attrs, NULL);
268 if (ret != LDB_SUCCESS) {
269 r->out.error_string = talloc_asprintf(r, "ldb_search for %s failed - %s",
270 account_dn_str, ldb_errstring(remote_ldb));
271 talloc_free(tmp_ctx);
272 return NT_STATUS_UNSUCCESSFUL;
273 }
274
275 if (res->count != 1) {
276 r->out.error_string = talloc_asprintf(r, "ldb_search for %s failed - found %d entries",
277 account_dn_str, res->count);
278 talloc_free(tmp_ctx);
279 return NT_STATUS_UNSUCCESSFUL;
280 }
281
282 /* Prepare a new message, for the modify */
283 msg = ldb_msg_new(tmp_ctx);
284 if (!msg) {
285 r->out.error_string = NULL;
286 talloc_free(tmp_ctx);
287 return NT_STATUS_NO_MEMORY;
288 }
289 msg->dn = res->msgs[0]->dn;
290
291 {
292 int i;
293 const char *service_principal_name[6];
294 const char *dns_host_name = strlower_talloc(tmp_ctx,
295 talloc_asprintf(tmp_ctx,
296 "%s.%s",
297 r->in.netbios_name,
298 realm));
299
300 if (!dns_host_name) {
301 r->out.error_string = NULL;
302 talloc_free(tmp_ctx);
303 return NT_STATUS_NO_MEMORY;
304 }
305
306 service_principal_name[0] = talloc_asprintf(tmp_ctx, "host/%s", dns_host_name);
307 service_principal_name[1] = talloc_asprintf(tmp_ctx, "host/%s", strlower_talloc(tmp_ctx, r->in.netbios_name));
308 service_principal_name[2] = talloc_asprintf(tmp_ctx, "host/%s/%s", dns_host_name, realm);
309 service_principal_name[3] = talloc_asprintf(tmp_ctx, "host/%s/%s", strlower_talloc(tmp_ctx, r->in.netbios_name), realm);
310 service_principal_name[4] = talloc_asprintf(tmp_ctx, "host/%s/%s", dns_host_name, r->out.domain_name);
311 service_principal_name[5] = talloc_asprintf(tmp_ctx, "host/%s/%s", strlower_talloc(tmp_ctx, r->in.netbios_name), r->out.domain_name);
312
313 for (i=0; i < ARRAY_SIZE(service_principal_name); i++) {
314 if (!service_principal_name[i]) {
315 r->out.error_string = NULL;
316 talloc_free(tmp_ctx);
317 return NT_STATUS_NO_MEMORY;
318 }
319 rtn = samdb_msg_add_string(remote_ldb, tmp_ctx, msg, "servicePrincipalName", service_principal_name[i]);
320 if (rtn == -1) {
321 r->out.error_string = NULL;
322 talloc_free(tmp_ctx);
323 return NT_STATUS_NO_MEMORY;
324 }
325 }
326
327 rtn = samdb_msg_add_string(remote_ldb, tmp_ctx, msg, "dNSHostName", dns_host_name);
328 if (rtn == -1) {
329 r->out.error_string = NULL;
330 talloc_free(tmp_ctx);
331 return NT_STATUS_NO_MEMORY;
332 }
333
334 rtn = samdb_replace(remote_ldb, tmp_ctx, msg);
335 if (rtn != 0) {
336 r->out.error_string
337 = talloc_asprintf(r,
338 "Failed to replace entries on %s",
339 ldb_dn_get_linearized(msg->dn));
340 talloc_free(tmp_ctx);
341 return NT_STATUS_INTERNAL_DB_CORRUPTION;
342 }
343 }
344
345 /* DsCrackNames to find out the DN of the domain. */
346 r_crack_names.in.req->req1.format_offered = DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT;
347 r_crack_names.in.req->req1.format_desired = DRSUAPI_DS_NAME_FORMAT_FQDN_1779;
348 names[0].str = talloc_asprintf(tmp_ctx, "%s\\", r->out.domain_name);
349 if (!names[0].str) {
350 r->out.error_string = NULL;
351 talloc_free(tmp_ctx);
352 return NT_STATUS_NO_MEMORY;
353 }
354
355 status = dcerpc_drsuapi_DsCrackNames(drsuapi_pipe, tmp_ctx, &r_crack_names);
356 if (!NT_STATUS_IS_OK(status)) {
357 if (NT_STATUS_EQUAL(status, NT_STATUS_NET_WRITE_FAULT)) {
358 r->out.error_string
359 = talloc_asprintf(r,
360 "dcerpc_drsuapi_DsCrackNames for [%s] failed - %s",
361 r->in.domain_name,
362 dcerpc_errstr(tmp_ctx, drsuapi_pipe->last_fault_code));
363 talloc_free(tmp_ctx);
364 return status;
365 } else {
366 r->out.error_string
367 = talloc_asprintf(r,
368 "dcerpc_drsuapi_DsCrackNames for [%s] failed - %s",
369 r->in.domain_name,
370 nt_errstr(status));
371 talloc_free(tmp_ctx);
372 return status;
373 }
374 } else if (!W_ERROR_IS_OK(r_crack_names.out.result)) {
375 r->out.error_string
376 = talloc_asprintf(r,
377 "DsCrackNames failed - %s", win_errstr(r_crack_names.out.result));
378 talloc_free(tmp_ctx);
379 return NT_STATUS_UNSUCCESSFUL;
380 } else if (*r_crack_names.out.level_out != 1
381 || !r_crack_names.out.ctr->ctr1
382 || r_crack_names.out.ctr->ctr1->count != 1
383 || !r_crack_names.out.ctr->ctr1->array[0].result_name
384 || r_crack_names.out.ctr->ctr1->array[0].status != DRSUAPI_DS_NAME_STATUS_OK) {
385 r->out.error_string = talloc_asprintf(r, "DsCrackNames failed");
386 talloc_free(tmp_ctx);
387 return NT_STATUS_UNSUCCESSFUL;
388 }
389
390 /* Store the account DN. */
391 r->out.account_dn_str = account_dn_str;
392 talloc_steal(r, account_dn_str);
393
394 /* Store the domain DN. */
395 r->out.domain_dn_str = r_crack_names.out.ctr->ctr1->array[0].result_name;
396 talloc_steal(r, r_crack_names.out.ctr->ctr1->array[0].result_name);
397
398 /* Store the KVNO of the account, critical for some kerberos
399 * operations */
400 r->out.kvno = ldb_msg_find_attr_as_uint(res->msgs[0], "msDS-KeyVersionNumber", 0);
401
402 /* Store the account GUID. */
403 r->out.account_guid = samdb_result_guid(res->msgs[0], "objectGUID");
404
405 if (r->in.acct_type == ACB_SVRTRUST) {
406 status = libnet_JoinSite(ctx, remote_ldb, r);
407 }
408 talloc_free(tmp_ctx);
409
410 return status;
411}
412
413/*
414 * do a domain join using DCERPC/SAMR calls
415 * - connect to the LSA pipe, to try and find out information about the domain
416 * - create a secondary connection to SAMR pipe
417 * - do a samr_Connect to get a policy handle
418 * - do a samr_LookupDomain to get the domain sid
419 * - do a samr_OpenDomain to get a domain handle
420 * - do a samr_CreateAccount to try and get a new account
421 *
422 * If that fails, do:
423 * - do a samr_LookupNames to get the users rid
424 * - do a samr_OpenUser to get a user handle
425 * - potentially delete and recreate the user
426 * - assert the account is of the right type with samrQueryUserInfo
427 *
428 * - call libnet_SetPassword_samr_handle to set the password,
429 * and pass a samr_UserInfo21 struct to set full_name and the account flags
430 *
431 * - do some ADS specific things when we join as Domain Controller,
432 * look at libnet_joinADSDomain() for the details
433 */
434NTSTATUS libnet_JoinDomain(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_JoinDomain *r)
435{
436 TALLOC_CTX *tmp_ctx;
437
438 NTSTATUS status, cu_status;
439
440 struct libnet_RpcConnect *connect_with_info;
441 struct dcerpc_pipe *samr_pipe;
442
443 struct samr_Connect sc;
444 struct policy_handle p_handle;
445 struct samr_OpenDomain od;
446 struct policy_handle d_handle;
447 struct samr_LookupNames ln;
448 struct samr_Ids rids, types;
449 struct samr_OpenUser ou;
450 struct samr_CreateUser2 cu;
451 struct policy_handle *u_handle = NULL;
452 struct samr_QueryUserInfo qui;
453 union samr_UserInfo *uinfo;
454 struct samr_UserInfo21 u_info21;
455 union libnet_SetPassword r2;
456 struct samr_GetUserPwInfo pwp;
457 struct samr_PwInfo info;
458 struct lsa_String samr_account_name;
459
460 uint32_t acct_flags, old_acct_flags;
461 uint32_t rid, access_granted;
462 int policy_min_pw_len = 0;
463
464 struct dom_sid *account_sid = NULL;
465 const char *password_str = NULL;
466
467 r->out.error_string = NULL;
468 r2.samr_handle.out.error_string = NULL;
469
470 tmp_ctx = talloc_named(mem_ctx, 0, "libnet_Join temp context");
471 if (!tmp_ctx) {
472 r->out.error_string = NULL;
473 return NT_STATUS_NO_MEMORY;
474 }
475
476 u_handle = talloc(tmp_ctx, struct policy_handle);
477 if (!u_handle) {
478 r->out.error_string = NULL;
479 talloc_free(tmp_ctx);
480 return NT_STATUS_NO_MEMORY;
481 }
482
483 connect_with_info = talloc_zero(tmp_ctx, struct libnet_RpcConnect);
484 if (!connect_with_info) {
485 r->out.error_string = NULL;
486 talloc_free(tmp_ctx);
487 return NT_STATUS_NO_MEMORY;
488 }
489
490 /* prepare connect to the SAMR pipe of PDC */
491 if (r->in.level == LIBNET_JOINDOMAIN_AUTOMATIC) {
492 connect_with_info->in.binding = NULL;
493 connect_with_info->in.name = r->in.domain_name;
494 } else {
495 connect_with_info->in.binding = r->in.binding;
496 connect_with_info->in.name = NULL;
497 }
498
499 /* This level makes a connection to the LSA pipe on the way,
500 * to get some useful bits of information about the domain */
501 connect_with_info->level = LIBNET_RPC_CONNECT_DC_INFO;
502 connect_with_info->in.dcerpc_iface = &ndr_table_samr;
503
504 /*
505 establish the SAMR connection
506 */
507 status = libnet_RpcConnect(ctx, tmp_ctx, connect_with_info);
508 if (!NT_STATUS_IS_OK(status)) {
509 if (r->in.binding) {
510 r->out.error_string = talloc_asprintf(mem_ctx,
511 "Connection to SAMR pipe of DC %s failed: %s",
512 r->in.binding, connect_with_info->out.error_string);
513 } else {
514 r->out.error_string = talloc_asprintf(mem_ctx,
515 "Connection to SAMR pipe of PDC for %s failed: %s",
516 r->in.domain_name, connect_with_info->out.error_string);
517 }
518 talloc_free(tmp_ctx);
519 return status;
520 }
521
522 samr_pipe = connect_with_info->out.dcerpc_pipe;
523
524 status = dcerpc_pipe_auth(tmp_ctx, &samr_pipe,
525 connect_with_info->out.dcerpc_pipe->binding,
526 &ndr_table_samr, ctx->cred, ctx->lp_ctx);
527 if (!NT_STATUS_IS_OK(status)) {
528 r->out.error_string = talloc_asprintf(mem_ctx,
529 "SAMR bind failed: %s",
530 nt_errstr(status));
531 talloc_free(tmp_ctx);
532 return status;
533 }
534
535 /* prepare samr_Connect */
536 ZERO_STRUCT(p_handle);
537 sc.in.system_name = NULL;
538 sc.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
539 sc.out.connect_handle = &p_handle;
540
541 /* 2. do a samr_Connect to get a policy handle */
542 status = dcerpc_samr_Connect(samr_pipe, tmp_ctx, &sc);
543 if (!NT_STATUS_IS_OK(status)) {
544 r->out.error_string = talloc_asprintf(mem_ctx,
545 "samr_Connect failed: %s",
546 nt_errstr(status));
547 talloc_free(tmp_ctx);
548 return status;
549 }
550
551 /* If this is a connection on ncacn_ip_tcp to Win2k3 SP1, we don't get back this useful info */
552 if (!connect_with_info->out.domain_name) {
553 if (r->in.level == LIBNET_JOINDOMAIN_AUTOMATIC) {
554 connect_with_info->out.domain_name = talloc_strdup(tmp_ctx, r->in.domain_name);
555 } else {
556 /* Bugger, we just lost our way to automaticly find the domain name */
557 connect_with_info->out.domain_name = talloc_strdup(tmp_ctx, lp_workgroup(ctx->lp_ctx));
558 connect_with_info->out.realm = talloc_strdup(tmp_ctx, lp_realm(ctx->lp_ctx));
559 }
560 }
561
562 /* Perhaps we didn't get a SID above, because we are against ncacn_ip_tcp */
563 if (!connect_with_info->out.domain_sid) {
564 struct lsa_String name;
565 struct samr_LookupDomain l;
566 struct dom_sid2 *sid = NULL;
567 name.string = connect_with_info->out.domain_name;
568 l.in.connect_handle = &p_handle;
569 l.in.domain_name = &name;
570 l.out.sid = &sid;
571
572 status = dcerpc_samr_LookupDomain(samr_pipe, tmp_ctx, &l);
573 if (!NT_STATUS_IS_OK(status)) {
574 r->out.error_string = talloc_asprintf(mem_ctx,
575 "SAMR LookupDomain failed: %s",
576 nt_errstr(status));
577 talloc_free(tmp_ctx);
578 return status;
579 }
580 connect_with_info->out.domain_sid = *l.out.sid;
581 }
582
583 /* prepare samr_OpenDomain */
584 ZERO_STRUCT(d_handle);
585 od.in.connect_handle = &p_handle;
586 od.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
587 od.in.sid = connect_with_info->out.domain_sid;
588 od.out.domain_handle = &d_handle;
589
590 /* do a samr_OpenDomain to get a domain handle */
591 status = dcerpc_samr_OpenDomain(samr_pipe, tmp_ctx, &od);
592 if (!NT_STATUS_IS_OK(status)) {
593 r->out.error_string = talloc_asprintf(mem_ctx,
594 "samr_OpenDomain for [%s] failed: %s",
595 dom_sid_string(tmp_ctx, connect_with_info->out.domain_sid),
596 nt_errstr(status));
597 talloc_free(tmp_ctx);
598 return status;
599 }
600
601 /* prepare samr_CreateUser2 */
602 ZERO_STRUCTP(u_handle);
603 cu.in.domain_handle = &d_handle;
604 cu.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
605 samr_account_name.string = r->in.account_name;
606 cu.in.account_name = &samr_account_name;
607 cu.in.acct_flags = r->in.acct_type;
608 cu.out.user_handle = u_handle;
609 cu.out.rid = &rid;
610 cu.out.access_granted = &access_granted;
611
612 /* do a samr_CreateUser2 to get an account handle, or an error */
613 cu_status = dcerpc_samr_CreateUser2(samr_pipe, tmp_ctx, &cu);
614 status = cu_status;
615 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
616 /* prepare samr_LookupNames */
617 ln.in.domain_handle = &d_handle;
618 ln.in.num_names = 1;
619 ln.in.names = talloc_array(tmp_ctx, struct lsa_String, 1);
620 ln.out.rids = &rids;
621 ln.out.types = &types;
622 if (!ln.in.names) {
623 r->out.error_string = NULL;
624 talloc_free(tmp_ctx);
625 return NT_STATUS_NO_MEMORY;
626 }
627 ln.in.names[0].string = r->in.account_name;
628
629 /* 5. do a samr_LookupNames to get the users rid */
630 status = dcerpc_samr_LookupNames(samr_pipe, tmp_ctx, &ln);
631 if (!NT_STATUS_IS_OK(status)) {
632 r->out.error_string = talloc_asprintf(mem_ctx,
633 "samr_LookupNames for [%s] failed: %s",
634 r->in.account_name,
635 nt_errstr(status));
636 talloc_free(tmp_ctx);
637 return status;
638 }
639
640 /* check if we got one RID for the user */
641 if (ln.out.rids->count != 1) {
642 r->out.error_string = talloc_asprintf(mem_ctx,
643 "samr_LookupNames for [%s] returns %d RIDs",
644 r->in.account_name, ln.out.rids->count);
645 talloc_free(tmp_ctx);
646 return NT_STATUS_INVALID_PARAMETER;
647 }
648
649 /* prepare samr_OpenUser */
650 ZERO_STRUCTP(u_handle);
651 ou.in.domain_handle = &d_handle;
652 ou.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
653 ou.in.rid = ln.out.rids->ids[0];
654 rid = ou.in.rid;
655 ou.out.user_handle = u_handle;
656
657 /* 6. do a samr_OpenUser to get a user handle */
658 status = dcerpc_samr_OpenUser(samr_pipe, tmp_ctx, &ou);
659 if (!NT_STATUS_IS_OK(status)) {
660 r->out.error_string = talloc_asprintf(mem_ctx,
661 "samr_OpenUser for [%s] failed: %s",
662 r->in.account_name,
663 nt_errstr(status));
664 talloc_free(tmp_ctx);
665 return status;
666 }
667
668 if (r->in.recreate_account) {
669 struct samr_DeleteUser d;
670 d.in.user_handle = u_handle;
671 d.out.user_handle = u_handle;
672 status = dcerpc_samr_DeleteUser(samr_pipe, mem_ctx, &d);
673 if (!NT_STATUS_IS_OK(status)) {
674 r->out.error_string = talloc_asprintf(mem_ctx,
675 "samr_DeleteUser (for recreate) of [%s] failed: %s",
676 r->in.account_name,
677 nt_errstr(status));
678 talloc_free(tmp_ctx);
679 return status;
680 }
681
682 /* We want to recreate, so delete and another samr_CreateUser2 */
683
684 /* &cu filled in above */
685 status = dcerpc_samr_CreateUser2(samr_pipe, tmp_ctx, &cu);
686 if (!NT_STATUS_IS_OK(status)) {
687 r->out.error_string = talloc_asprintf(mem_ctx,
688 "samr_CreateUser2 (recreate) for [%s] failed: %s",
689 r->in.account_name, nt_errstr(status));
690 talloc_free(tmp_ctx);
691 return status;
692 }
693 }
694 } else if (!NT_STATUS_IS_OK(status)) {
695 r->out.error_string = talloc_asprintf(mem_ctx,
696 "samr_CreateUser2 for [%s] failed: %s",
697 r->in.account_name, nt_errstr(status));
698 talloc_free(tmp_ctx);
699 return status;
700 }
701
702 /* prepare samr_QueryUserInfo (get flags) */
703 qui.in.user_handle = u_handle;
704 qui.in.level = 16;
705 qui.out.info = &uinfo;
706
707 status = dcerpc_samr_QueryUserInfo(samr_pipe, tmp_ctx, &qui);
708 if (!NT_STATUS_IS_OK(status)) {
709 r->out.error_string = talloc_asprintf(mem_ctx,
710 "samr_QueryUserInfo for [%s] failed: %s",
711 r->in.account_name,
712 nt_errstr(status));
713 talloc_free(tmp_ctx);
714 return status;
715 }
716
717 if (!uinfo) {
718 status = NT_STATUS_INVALID_PARAMETER;
719 r->out.error_string
720 = talloc_asprintf(mem_ctx,
721 "samr_QueryUserInfo failed to return qui.out.info for [%s]: %s",
722 r->in.account_name, nt_errstr(status));
723 talloc_free(tmp_ctx);
724 return status;
725 }
726
727 old_acct_flags = (uinfo->info16.acct_flags & (ACB_WSTRUST | ACB_SVRTRUST | ACB_DOMTRUST));
728 /* Possibly bail if the account is of the wrong type */
729 if (old_acct_flags
730 != r->in.acct_type) {
731 const char *old_account_type, *new_account_type;
732 switch (old_acct_flags) {
733 case ACB_WSTRUST:
734 old_account_type = "domain member (member)";
735 break;
736 case ACB_SVRTRUST:
737 old_account_type = "domain controller (bdc)";
738 break;
739 case ACB_DOMTRUST:
740 old_account_type = "trusted domain";
741 break;
742 default:
743 return NT_STATUS_INVALID_PARAMETER;
744 }
745 switch (r->in.acct_type) {
746 case ACB_WSTRUST:
747 new_account_type = "domain member (member)";
748 break;
749 case ACB_SVRTRUST:
750 new_account_type = "domain controller (bdc)";
751 break;
752 case ACB_DOMTRUST:
753 new_account_type = "trusted domain";
754 break;
755 default:
756 return NT_STATUS_INVALID_PARAMETER;
757 }
758
759 if (!NT_STATUS_EQUAL(cu_status, NT_STATUS_USER_EXISTS)) {
760 /* We created a new user, but they didn't come out the right type?!? */
761 r->out.error_string
762 = talloc_asprintf(mem_ctx,
763 "We asked to create a new machine account (%s) of type %s, "
764 "but we got an account of type %s. This is unexpected. "
765 "Perhaps delete the account and try again.",
766 r->in.account_name, new_account_type, old_account_type);
767 talloc_free(tmp_ctx);
768 return NT_STATUS_INVALID_PARAMETER;
769 } else {
770 /* The account is of the wrong type, so bail */
771
772 /* TODO: We should allow a --force option to override, and redo this from the top setting r.in.recreate_account */
773 r->out.error_string
774 = talloc_asprintf(mem_ctx,
775 "The machine account (%s) already exists in the domain %s, "
776 "but is a %s. You asked to join as a %s. Please delete "
777 "the account and try again.",
778 r->in.account_name, connect_with_info->out.domain_name, old_account_type, new_account_type);
779 talloc_free(tmp_ctx);
780 return NT_STATUS_USER_EXISTS;
781 }
782 } else {
783 acct_flags = uinfo->info16.acct_flags;
784 }
785
786 acct_flags = (acct_flags & ~(ACB_DISABLED|ACB_PWNOTREQ));
787
788 /* Find out what password policy this user has */
789 pwp.in.user_handle = u_handle;
790 pwp.out.info = &info;
791
792 status = dcerpc_samr_GetUserPwInfo(samr_pipe, tmp_ctx, &pwp);
793 if (NT_STATUS_IS_OK(status)) {
794 policy_min_pw_len = pwp.out.info->min_password_length;
795 }
796
797 /* Grab a password of that minimum length */
798
799 password_str = generate_random_str(tmp_ctx, MAX(8, policy_min_pw_len));
800
801 /* set full_name and reset flags */
802 ZERO_STRUCT(u_info21);
803 u_info21.full_name.string = r->in.account_name;
804 u_info21.acct_flags = acct_flags;
805 u_info21.fields_present = SAMR_FIELD_FULL_NAME | SAMR_FIELD_ACCT_FLAGS;
806
807 r2.samr_handle.level = LIBNET_SET_PASSWORD_SAMR_HANDLE;
808 r2.samr_handle.in.account_name = r->in.account_name;
809 r2.samr_handle.in.newpassword = password_str;
810 r2.samr_handle.in.user_handle = u_handle;
811 r2.samr_handle.in.dcerpc_pipe = samr_pipe;
812 r2.samr_handle.in.info21 = &u_info21;
813
814 status = libnet_SetPassword(ctx, tmp_ctx, &r2);
815 if (!NT_STATUS_IS_OK(status)) {
816 r->out.error_string = talloc_steal(mem_ctx, r2.samr_handle.out.error_string);
817 talloc_free(tmp_ctx);
818 return status;
819 }
820
821 account_sid = dom_sid_add_rid(mem_ctx, connect_with_info->out.domain_sid, rid);
822 if (!account_sid) {
823 r->out.error_string = NULL;
824 talloc_free(tmp_ctx);
825 return NT_STATUS_NO_MEMORY;
826 }
827
828 /* Finish out by pushing various bits of status data out for the caller to use */
829 r->out.join_password = password_str;
830 talloc_steal(mem_ctx, r->out.join_password);
831
832 r->out.domain_sid = connect_with_info->out.domain_sid;
833 talloc_steal(mem_ctx, r->out.domain_sid);
834
835 r->out.account_sid = account_sid;
836 talloc_steal(mem_ctx, r->out.account_sid);
837
838 r->out.domain_name = connect_with_info->out.domain_name;
839 talloc_steal(mem_ctx, r->out.domain_name);
840 r->out.realm = connect_with_info->out.realm;
841 talloc_steal(mem_ctx, r->out.realm);
842 r->out.samr_pipe = samr_pipe;
843 talloc_reparent(tmp_ctx, mem_ctx, samr_pipe);
844 r->out.samr_binding = samr_pipe->binding;
845 talloc_steal(mem_ctx, r->out.samr_binding);
846 r->out.user_handle = u_handle;
847 talloc_steal(mem_ctx, u_handle);
848 r->out.error_string = r2.samr_handle.out.error_string;
849 talloc_steal(mem_ctx, r2.samr_handle.out.error_string);
850 r->out.kvno = 0;
851 r->out.server_dn_str = NULL;
852 talloc_free(tmp_ctx);
853
854 /* Now, if it was AD, then we want to start looking changing a
855 * few more things. Otherwise, we are done. */
856 if (r->out.realm) {
857 status = libnet_JoinADSDomain(ctx, r);
858 return status;
859 }
860
861 return status;
862}
863
864static NTSTATUS libnet_Join_primary_domain(struct libnet_context *ctx,
865 TALLOC_CTX *mem_ctx,
866 struct libnet_Join *r)
867{
868 NTSTATUS status;
869 TALLOC_CTX *tmp_mem;
870 struct libnet_JoinDomain *r2;
871 struct provision_store_self_join_settings *set_secrets;
872 uint32_t acct_type = 0;
873 const char *account_name;
874 const char *netbios_name;
875 const char *error_string;
876
877 r->out.error_string = NULL;
878
879 tmp_mem = talloc_new(mem_ctx);
880 if (!tmp_mem) {
881 return NT_STATUS_NO_MEMORY;
882 }
883
884 r2 = talloc(tmp_mem, struct libnet_JoinDomain);
885 if (!r2) {
886 r->out.error_string = NULL;
887 talloc_free(tmp_mem);
888 return NT_STATUS_NO_MEMORY;
889 }
890
891 if (r->in.join_type == SEC_CHAN_BDC) {
892 acct_type = ACB_SVRTRUST;
893 } else if (r->in.join_type == SEC_CHAN_WKSTA) {
894 acct_type = ACB_WSTRUST;
895 } else {
896 r->out.error_string = NULL;
897 talloc_free(tmp_mem);
898 return NT_STATUS_INVALID_PARAMETER;
899 }
900
901 if (r->in.netbios_name != NULL) {
902 netbios_name = r->in.netbios_name;
903 } else {
904 netbios_name = talloc_strdup(tmp_mem, lp_netbios_name(ctx->lp_ctx));
905 if (!netbios_name) {
906 r->out.error_string = NULL;
907 talloc_free(tmp_mem);
908 return NT_STATUS_NO_MEMORY;
909 }
910 }
911
912 account_name = talloc_asprintf(tmp_mem, "%s$", netbios_name);
913 if (!account_name) {
914 r->out.error_string = NULL;
915 talloc_free(tmp_mem);
916 return NT_STATUS_NO_MEMORY;
917 }
918
919 /*
920 * join the domain
921 */
922 ZERO_STRUCTP(r2);
923 r2->in.domain_name = r->in.domain_name;
924 r2->in.account_name = account_name;
925 r2->in.netbios_name = netbios_name;
926 r2->in.level = LIBNET_JOINDOMAIN_AUTOMATIC;
927 r2->in.acct_type = acct_type;
928 r2->in.recreate_account = false;
929 status = libnet_JoinDomain(ctx, r2, r2);
930 if (!NT_STATUS_IS_OK(status)) {
931 r->out.error_string = talloc_steal(mem_ctx, r2->out.error_string);
932 talloc_free(tmp_mem);
933 return status;
934 }
935
936 set_secrets = talloc(tmp_mem, struct provision_store_self_join_settings);
937 if (!set_secrets) {
938 r->out.error_string = NULL;
939 talloc_free(tmp_mem);
940 return NT_STATUS_NO_MEMORY;
941 }
942
943 ZERO_STRUCTP(set_secrets);
944 set_secrets->domain_name = r2->out.domain_name;
945 set_secrets->realm = r2->out.realm;
946 set_secrets->account_name = account_name;
947 set_secrets->netbios_name = netbios_name;
948 set_secrets->secure_channel_type = r->in.join_type;
949 set_secrets->machine_password = r2->out.join_password;
950 set_secrets->key_version_number = r2->out.kvno;
951 set_secrets->domain_sid = r2->out.domain_sid;
952
953 status = provision_store_self_join(ctx, ctx->lp_ctx, ctx->event_ctx, set_secrets, &error_string);
954 if (!NT_STATUS_IS_OK(status)) {
955 r->out.error_string = talloc_steal(mem_ctx, error_string);
956 talloc_free(tmp_mem);
957 return status;
958 }
959
960 /* move all out parameter to the callers TALLOC_CTX */
961 r->out.error_string = NULL;
962 r->out.join_password = r2->out.join_password;
963 talloc_reparent(r2, mem_ctx, r2->out.join_password);
964 r->out.domain_sid = r2->out.domain_sid;
965 talloc_reparent(r2, mem_ctx, r2->out.domain_sid);
966 r->out.domain_name = r2->out.domain_name;
967 talloc_reparent(r2, mem_ctx, r2->out.domain_name);
968 talloc_free(tmp_mem);
969 return NT_STATUS_OK;
970}
971
972NTSTATUS libnet_Join(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_Join *r)
973{
974 switch (r->in.join_type) {
975 case SEC_CHAN_WKSTA:
976 return libnet_Join_primary_domain(ctx, mem_ctx, r);
977 case SEC_CHAN_BDC:
978 return libnet_Join_primary_domain(ctx, mem_ctx, r);
979 case SEC_CHAN_DOMAIN:
980 case SEC_CHAN_DNS_DOMAIN:
981 case SEC_CHAN_NULL:
982 break;
983 }
984
985 r->out.error_string = talloc_asprintf(mem_ctx,
986 "Invalid join type specified (%08X) attempting to join domain %s",
987 r->in.join_type, r->in.domain_name);
988 return NT_STATUS_INVALID_PARAMETER;
989}
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