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s3-waf: Build libwbclient as dynamic library
[Samba/gebeck_regimport.git] / source4 / libnet / libnet_join.c
blobdd533355adf35f0d036453b753a70481c24e1748
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 */
48 static 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_r(drsuapi_pipe->binding_handle, tmp_ctx, &r_drsuapi_bind);
137 if (!NT_STATUS_IS_OK(status)) {
138 r->out.error_string
139 = talloc_asprintf(r,
140 "dcerpc_drsuapi_DsBind failed - %s",
141 nt_errstr(status));
142 talloc_free(tmp_ctx);
143 return status;
144 } else if (!W_ERROR_IS_OK(r_drsuapi_bind.out.result)) {
145 r->out.error_string
146 = talloc_asprintf(r,
147 "DsBind failed - %s",
148 win_errstr(r_drsuapi_bind.out.result));
149 talloc_free(tmp_ctx);
150 return NT_STATUS_UNSUCCESSFUL;
151 }
152
153 /* Actually 'crack' the names */
154 ZERO_STRUCT(r_crack_names);
155 r_crack_names.in.bind_handle = &drsuapi_bind_handle;
156 r_crack_names.in.level = 1;
157 r_crack_names.in.req = talloc(r, union drsuapi_DsNameRequest);
158 if (!r_crack_names.in.req) {
159 r->out.error_string = NULL;
160 talloc_free(tmp_ctx);
161 return NT_STATUS_NO_MEMORY;
162 }
163 r_crack_names.in.req->req1.codepage = 1252; /* western european */
164 r_crack_names.in.req->req1.language = 0x00000407; /* german */
165 r_crack_names.in.req->req1.count = 1;
166 r_crack_names.in.req->req1.names = names;
167 r_crack_names.in.req->req1.format_flags = DRSUAPI_DS_NAME_FLAG_NO_FLAGS;
168 r_crack_names.in.req->req1.format_offered = DRSUAPI_DS_NAME_FORMAT_SID_OR_SID_HISTORY;
169 r_crack_names.in.req->req1.format_desired = DRSUAPI_DS_NAME_FORMAT_FQDN_1779;
170 names[0].str = dom_sid_string(tmp_ctx, r->out.account_sid);
171 if (!names[0].str) {
172 r->out.error_string = NULL;
173 talloc_free(tmp_ctx);
174 return NT_STATUS_NO_MEMORY;
175 }
176
177 r_crack_names.out.ctr = talloc(r, union drsuapi_DsNameCtr);
178 r_crack_names.out.level_out = talloc(r, uint32_t);
179 if (!r_crack_names.out.ctr || !r_crack_names.out.level_out) {
180 r->out.error_string = NULL;
181 talloc_free(tmp_ctx);
182 return NT_STATUS_NO_MEMORY;
183 }
184
185 status = dcerpc_drsuapi_DsCrackNames_r(drsuapi_pipe->binding_handle, tmp_ctx, &r_crack_names);
186 if (!NT_STATUS_IS_OK(status)) {
187 r->out.error_string
188 = talloc_asprintf(r,
189 "dcerpc_drsuapi_DsCrackNames for [%s] failed - %s",
190 names[0].str,
191 nt_errstr(status));
192 talloc_free(tmp_ctx);
193 return status;
194 } else if (!W_ERROR_IS_OK(r_crack_names.out.result)) {
195 r->out.error_string
196 = talloc_asprintf(r,
197 "DsCrackNames failed - %s", win_errstr(r_crack_names.out.result));
198 talloc_free(tmp_ctx);
199 return NT_STATUS_UNSUCCESSFUL;
200 } else if (*r_crack_names.out.level_out != 1
201 || !r_crack_names.out.ctr->ctr1
202 || r_crack_names.out.ctr->ctr1->count != 1) {
203 r->out.error_string = talloc_asprintf(r, "DsCrackNames failed");
204 talloc_free(tmp_ctx);
205 return NT_STATUS_INVALID_PARAMETER;
206 } else if (r_crack_names.out.ctr->ctr1->array[0].status != DRSUAPI_DS_NAME_STATUS_OK) {
207 r->out.error_string = talloc_asprintf(r, "DsCrackNames failed: %d", r_crack_names.out.ctr->ctr1->array[0].status);
208 talloc_free(tmp_ctx);
209 return NT_STATUS_UNSUCCESSFUL;
210 } else if (r_crack_names.out.ctr->ctr1->array[0].result_name == NULL) {
211 r->out.error_string = talloc_asprintf(r, "DsCrackNames failed: no result name");
212 talloc_free(tmp_ctx);
213 return NT_STATUS_INVALID_PARAMETER;
214 }
215
216 /* Store the DN of our machine account. */
217 account_dn_str = r_crack_names.out.ctr->ctr1->array[0].result_name;
218
219 /* Now we know the user's DN, open with LDAP, read and modify a few things */
220
221 remote_ldb_url = talloc_asprintf(tmp_ctx, "ldap://%s",
222 drsuapi_binding->target_hostname);
223 if (!remote_ldb_url) {
224 r->out.error_string = NULL;
225 talloc_free(tmp_ctx);
226 return NT_STATUS_NO_MEMORY;
227 }
228
229 remote_ldb = ldb_wrap_connect(tmp_ctx, ctx->event_ctx, ctx->lp_ctx,
230 remote_ldb_url,
231 NULL, ctx->cred, 0);
232 if (!remote_ldb) {
233 r->out.error_string = NULL;
234 talloc_free(tmp_ctx);
235 return NT_STATUS_UNSUCCESSFUL;
236 }
237
238 account_dn = ldb_dn_new(tmp_ctx, remote_ldb, account_dn_str);
239 if (! ldb_dn_validate(account_dn)) {
240 r->out.error_string = talloc_asprintf(r, "Invalid account dn: %s",
241 account_dn_str);
242 talloc_free(tmp_ctx);
243 return NT_STATUS_UNSUCCESSFUL;
244 }
245
246 /* search for the user's record */
247 ret = ldb_search(remote_ldb, tmp_ctx, &res,
248 account_dn, LDB_SCOPE_BASE, attrs, NULL);
249 if (ret != LDB_SUCCESS) {
250 r->out.error_string = talloc_asprintf(r, "ldb_search for %s failed - %s",
251 account_dn_str, ldb_errstring(remote_ldb));
252 talloc_free(tmp_ctx);
253 return NT_STATUS_UNSUCCESSFUL;
254 }
255
256 if (res->count != 1) {
257 r->out.error_string = talloc_asprintf(r, "ldb_search for %s failed - found %d entries",
258 account_dn_str, res->count);
259 talloc_free(tmp_ctx);
260 return NT_STATUS_UNSUCCESSFUL;
261 }
262
263 /* Prepare a new message, for the modify */
264 msg = ldb_msg_new(tmp_ctx);
265 if (!msg) {
266 r->out.error_string = NULL;
267 talloc_free(tmp_ctx);
268 return NT_STATUS_NO_MEMORY;
269 }
270 msg->dn = res->msgs[0]->dn;
271
272 {
273 unsigned int i;
274 const char *service_principal_name[6];
275 const char *dns_host_name = strlower_talloc(tmp_ctx,
276 talloc_asprintf(tmp_ctx,
277 "%s.%s",
278 r->in.netbios_name,
279 realm));
280
281 if (!dns_host_name) {
282 r->out.error_string = NULL;
283 talloc_free(tmp_ctx);
284 return NT_STATUS_NO_MEMORY;
285 }
286
287 service_principal_name[0] = talloc_asprintf(tmp_ctx, "host/%s", dns_host_name);
288 service_principal_name[1] = talloc_asprintf(tmp_ctx, "host/%s", strlower_talloc(tmp_ctx, r->in.netbios_name));
289 service_principal_name[2] = talloc_asprintf(tmp_ctx, "host/%s/%s", dns_host_name, realm);
290 service_principal_name[3] = talloc_asprintf(tmp_ctx, "host/%s/%s", strlower_talloc(tmp_ctx, r->in.netbios_name), realm);
291 service_principal_name[4] = talloc_asprintf(tmp_ctx, "host/%s/%s", dns_host_name, r->out.domain_name);
292 service_principal_name[5] = talloc_asprintf(tmp_ctx, "host/%s/%s", strlower_talloc(tmp_ctx, r->in.netbios_name), r->out.domain_name);
293
294 for (i=0; i < ARRAY_SIZE(service_principal_name); i++) {
295 if (!service_principal_name[i]) {
296 r->out.error_string = NULL;
297 talloc_free(tmp_ctx);
298 return NT_STATUS_NO_MEMORY;
299 }
300 rtn = samdb_msg_add_string(remote_ldb, tmp_ctx, msg, "servicePrincipalName", service_principal_name[i]);
301 if (rtn != LDB_SUCCESS) {
302 r->out.error_string = NULL;
303 talloc_free(tmp_ctx);
304 return NT_STATUS_NO_MEMORY;
305 }
306 }
307
308 rtn = samdb_msg_add_string(remote_ldb, tmp_ctx, msg, "dNSHostName", dns_host_name);
309 if (rtn != LDB_SUCCESS) {
310 r->out.error_string = NULL;
311 talloc_free(tmp_ctx);
312 return NT_STATUS_NO_MEMORY;
313 }
314
315 rtn = dsdb_replace(remote_ldb, msg, 0);
316 if (rtn != LDB_SUCCESS) {
317 r->out.error_string
318 = talloc_asprintf(r,
319 "Failed to replace entries on %s",
320 ldb_dn_get_linearized(msg->dn));
321 talloc_free(tmp_ctx);
322 return NT_STATUS_INTERNAL_DB_CORRUPTION;
323 }
324 }
325
326 msg = ldb_msg_new(tmp_ctx);
327 if (!msg) {
328 r->out.error_string = NULL;
329 talloc_free(tmp_ctx);
330 return NT_STATUS_NO_MEMORY;
331 }
332 msg->dn = res->msgs[0]->dn;
333
334 rtn = ldb_msg_add_fmt(msg, "msDS-SupportedEncryptionTypes",
335 "%lu",
336 (long unsigned int)(ENC_CRC32 | ENC_RSA_MD5 |
337 ENC_RC4_HMAC_MD5 |
338 ENC_HMAC_SHA1_96_AES128 |
339 ENC_HMAC_SHA1_96_AES256));
340 if (rtn != LDB_SUCCESS) {
341 r->out.error_string = NULL;
342 talloc_free(tmp_ctx);
343 return NT_STATUS_NO_MEMORY;
344 }
345
346 rtn = dsdb_replace(remote_ldb, msg, 0);
347 /* The remote server may not support this attribute, if it
348 * isn't a modern schema */
349 if (rtn != LDB_SUCCESS && rtn != LDB_ERR_NO_SUCH_ATTRIBUTE) {
350 r->out.error_string
351 = talloc_asprintf(r,
352 "Failed to replace msDS-SupportedEncryptionTypes on %s",
353 ldb_dn_get_linearized(msg->dn));
354 talloc_free(tmp_ctx);
355 return NT_STATUS_INTERNAL_DB_CORRUPTION;
356 }
357
358 /* DsCrackNames to find out the DN of the domain. */
359 r_crack_names.in.req->req1.format_offered = DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT;
360 r_crack_names.in.req->req1.format_desired = DRSUAPI_DS_NAME_FORMAT_FQDN_1779;
361 names[0].str = talloc_asprintf(tmp_ctx, "%s\\", r->out.domain_name);
362 if (!names[0].str) {
363 r->out.error_string = NULL;
364 talloc_free(tmp_ctx);
365 return NT_STATUS_NO_MEMORY;
366 }
367
368 status = dcerpc_drsuapi_DsCrackNames_r(drsuapi_pipe->binding_handle, tmp_ctx, &r_crack_names);
369 if (!NT_STATUS_IS_OK(status)) {
370 r->out.error_string
371 = talloc_asprintf(r,
372 "dcerpc_drsuapi_DsCrackNames for [%s] failed - %s",
373 r->in.domain_name,
374 nt_errstr(status));
375 talloc_free(tmp_ctx);
376 return status;
377 } else if (!W_ERROR_IS_OK(r_crack_names.out.result)) {
378 r->out.error_string
379 = talloc_asprintf(r,
380 "DsCrackNames failed - %s", win_errstr(r_crack_names.out.result));
381 talloc_free(tmp_ctx);
382 return NT_STATUS_UNSUCCESSFUL;
383 } else if (*r_crack_names.out.level_out != 1
384 || !r_crack_names.out.ctr->ctr1
385 || r_crack_names.out.ctr->ctr1->count != 1
386 || !r_crack_names.out.ctr->ctr1->array[0].result_name
387 || r_crack_names.out.ctr->ctr1->array[0].status != DRSUAPI_DS_NAME_STATUS_OK) {
388 r->out.error_string = talloc_asprintf(r, "DsCrackNames failed");
389 talloc_free(tmp_ctx);
390 return NT_STATUS_UNSUCCESSFUL;
391 }
392
393 /* Store the account DN. */
394 r->out.account_dn_str = account_dn_str;
395 talloc_steal(r, account_dn_str);
396
397 /* Store the domain DN. */
398 r->out.domain_dn_str = r_crack_names.out.ctr->ctr1->array[0].result_name;
399 talloc_steal(r, r_crack_names.out.ctr->ctr1->array[0].result_name);
400
401 /* Store the KVNO of the account, critical for some kerberos
402 * operations */
403 r->out.kvno = ldb_msg_find_attr_as_uint(res->msgs[0], "msDS-KeyVersionNumber", 0);
404
405 /* Store the account GUID. */
406 r->out.account_guid = samdb_result_guid(res->msgs[0], "objectGUID");
407
408 if (r->in.acct_type == ACB_SVRTRUST) {
409 status = libnet_JoinSite(ctx, remote_ldb, r);
410 }
411 talloc_free(tmp_ctx);
412
413 return status;
414 }
415
416 /*
417 * do a domain join using DCERPC/SAMR calls
418 * - connect to the LSA pipe, to try and find out information about the domain
419 * - create a secondary connection to SAMR pipe
420 * - do a samr_Connect to get a policy handle
421 * - do a samr_LookupDomain to get the domain sid
422 * - do a samr_OpenDomain to get a domain handle
423 * - do a samr_CreateAccount to try and get a new account
424 *
425 * If that fails, do:
426 * - do a samr_LookupNames to get the users rid
427 * - do a samr_OpenUser to get a user handle
428 * - potentially delete and recreate the user
429 * - assert the account is of the right type with samrQueryUserInfo
430 *
431 * - call libnet_SetPassword_samr_handle to set the password,
432 * and pass a samr_UserInfo21 struct to set full_name and the account flags
433 *
434 * - do some ADS specific things when we join as Domain Controller,
435 * look at libnet_joinADSDomain() for the details
436 */
437 NTSTATUS libnet_JoinDomain(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_JoinDomain *r)
438 {
439 TALLOC_CTX *tmp_ctx;
440
441 NTSTATUS status, cu_status;
442
443 struct libnet_RpcConnect *connect_with_info;
444 struct dcerpc_pipe *samr_pipe;
445
446 struct samr_Connect sc;
447 struct policy_handle p_handle;
448 struct samr_OpenDomain od;
449 struct policy_handle d_handle;
450 struct samr_LookupNames ln;
451 struct samr_Ids rids, types;
452 struct samr_OpenUser ou;
453 struct samr_CreateUser2 cu;
454 struct policy_handle *u_handle = NULL;
455 struct samr_QueryUserInfo qui;
456 union samr_UserInfo *uinfo;
457 struct samr_UserInfo21 u_info21;
458 union libnet_SetPassword r2;
459 struct samr_GetUserPwInfo pwp;
460 struct samr_PwInfo info;
461 struct lsa_String samr_account_name;
462
463 uint32_t acct_flags, old_acct_flags;
464 uint32_t rid, access_granted;
465 int policy_min_pw_len = 0;
466
467 struct dom_sid *account_sid = NULL;
468 const char *password_str = NULL;
469
470 r->out.error_string = NULL;
471 r2.samr_handle.out.error_string = NULL;
472
473 tmp_ctx = talloc_named(mem_ctx, 0, "libnet_Join temp context");
474 if (!tmp_ctx) {
475 r->out.error_string = NULL;
476 return NT_STATUS_NO_MEMORY;
477 }
478
479 u_handle = talloc(tmp_ctx, struct policy_handle);
480 if (!u_handle) {
481 r->out.error_string = NULL;
482 talloc_free(tmp_ctx);
483 return NT_STATUS_NO_MEMORY;
484 }
485
486 connect_with_info = talloc_zero(tmp_ctx, struct libnet_RpcConnect);
487 if (!connect_with_info) {
488 r->out.error_string = NULL;
489 talloc_free(tmp_ctx);
490 return NT_STATUS_NO_MEMORY;
491 }
492
493 /* prepare connect to the SAMR pipe of PDC */
494 if (r->in.level == LIBNET_JOINDOMAIN_AUTOMATIC) {
495 connect_with_info->in.binding = NULL;
496 connect_with_info->in.name = r->in.domain_name;
497 } else {
498 connect_with_info->in.binding = r->in.binding;
499 connect_with_info->in.name = NULL;
500 }
501
502 /* This level makes a connection to the LSA pipe on the way,
503 * to get some useful bits of information about the domain */
504 connect_with_info->level = LIBNET_RPC_CONNECT_DC_INFO;
505 connect_with_info->in.dcerpc_iface = &ndr_table_samr;
506
507 /*
508 establish the SAMR connection
509 */
510 status = libnet_RpcConnect(ctx, tmp_ctx, connect_with_info);
511 if (!NT_STATUS_IS_OK(status)) {
512 if (r->in.binding) {
513 r->out.error_string = talloc_asprintf(mem_ctx,
514 "Connection to SAMR pipe of DC %s failed: %s",
515 r->in.binding, connect_with_info->out.error_string);
516 } else {
517 r->out.error_string = talloc_asprintf(mem_ctx,
518 "Connection to SAMR pipe of PDC for %s failed: %s",
519 r->in.domain_name, connect_with_info->out.error_string);
520 }
521 talloc_free(tmp_ctx);
522 return status;
523 }
524
525 samr_pipe = connect_with_info->out.dcerpc_pipe;
526
527 status = dcerpc_pipe_auth(tmp_ctx, &samr_pipe,
528 connect_with_info->out.dcerpc_pipe->binding,
529 &ndr_table_samr, ctx->cred, ctx->lp_ctx);
530 if (!NT_STATUS_IS_OK(status)) {
531 r->out.error_string = talloc_asprintf(mem_ctx,
532 "SAMR bind failed: %s",
533 nt_errstr(status));
534 talloc_free(tmp_ctx);
535 return status;
536 }
537
538 /* prepare samr_Connect */
539 ZERO_STRUCT(p_handle);
540 sc.in.system_name = NULL;
541 sc.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
542 sc.out.connect_handle = &p_handle;
543
544 /* 2. do a samr_Connect to get a policy handle */
545 status = dcerpc_samr_Connect_r(samr_pipe->binding_handle, tmp_ctx, &sc);
546 if (NT_STATUS_IS_OK(status) && !NT_STATUS_IS_OK(sc.out.result)) {
547 status = sc.out.result;
548 }
549 if (!NT_STATUS_IS_OK(status)) {
550 r->out.error_string = talloc_asprintf(mem_ctx,
551 "samr_Connect failed: %s",
552 nt_errstr(status));
553 talloc_free(tmp_ctx);
554 return status;
555 }
556
557 /* If this is a connection on ncacn_ip_tcp to Win2k3 SP1, we don't get back this useful info */
558 if (!connect_with_info->out.domain_name) {
559 if (r->in.level == LIBNET_JOINDOMAIN_AUTOMATIC) {
560 connect_with_info->out.domain_name = talloc_strdup(tmp_ctx, r->in.domain_name);
561 } else {
562 /* Bugger, we just lost our way to automatically find the domain name */
563 connect_with_info->out.domain_name = talloc_strdup(tmp_ctx, lpcfg_workgroup(ctx->lp_ctx));
564 connect_with_info->out.realm = talloc_strdup(tmp_ctx, lpcfg_realm(ctx->lp_ctx));
565 }
566 }
567
568 /* Perhaps we didn't get a SID above, because we are against ncacn_ip_tcp */
569 if (!connect_with_info->out.domain_sid) {
570 struct lsa_String name;
571 struct samr_LookupDomain l;
572 struct dom_sid2 *sid = NULL;
573 name.string = connect_with_info->out.domain_name;
574 l.in.connect_handle = &p_handle;
575 l.in.domain_name = &name;
576 l.out.sid = &sid;
577
578 status = dcerpc_samr_LookupDomain_r(samr_pipe->binding_handle, tmp_ctx, &l);
579 if (NT_STATUS_IS_OK(status) && !NT_STATUS_IS_OK(l.out.result)) {
580 status = l.out.result;
581 }
582 if (!NT_STATUS_IS_OK(status)) {
583 r->out.error_string = talloc_asprintf(mem_ctx,
584 "SAMR LookupDomain failed: %s",
585 nt_errstr(status));
586 talloc_free(tmp_ctx);
587 return status;
588 }
589 connect_with_info->out.domain_sid = *l.out.sid;
590 }
591
592 /* prepare samr_OpenDomain */
593 ZERO_STRUCT(d_handle);
594 od.in.connect_handle = &p_handle;
595 od.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
596 od.in.sid = connect_with_info->out.domain_sid;
597 od.out.domain_handle = &d_handle;
598
599 /* do a samr_OpenDomain to get a domain handle */
600 status = dcerpc_samr_OpenDomain_r(samr_pipe->binding_handle, tmp_ctx, &od);
601 if (NT_STATUS_IS_OK(status) && !NT_STATUS_IS_OK(od.out.result)) {
602 status = od.out.result;
603 }
604 if (!NT_STATUS_IS_OK(status)) {
605 r->out.error_string = talloc_asprintf(mem_ctx,
606 "samr_OpenDomain for [%s] failed: %s",
607 dom_sid_string(tmp_ctx, connect_with_info->out.domain_sid),
608 nt_errstr(status));
609 talloc_free(tmp_ctx);
610 return status;
611 }
612
613 /* prepare samr_CreateUser2 */
614 ZERO_STRUCTP(u_handle);
615 cu.in.domain_handle = &d_handle;
616 cu.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
617 samr_account_name.string = r->in.account_name;
618 cu.in.account_name = &samr_account_name;
619 cu.in.acct_flags = r->in.acct_type;
620 cu.out.user_handle = u_handle;
621 cu.out.rid = &rid;
622 cu.out.access_granted = &access_granted;
623
624 /* do a samr_CreateUser2 to get an account handle, or an error */
625 cu_status = dcerpc_samr_CreateUser2_r(samr_pipe->binding_handle, tmp_ctx, &cu);
626 if (NT_STATUS_IS_OK(cu_status) && !NT_STATUS_IS_OK(cu.out.result)) {
627 cu_status = cu.out.result;
628 }
629 status = cu_status;
630 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
631 /* prepare samr_LookupNames */
632 ln.in.domain_handle = &d_handle;
633 ln.in.num_names = 1;
634 ln.in.names = talloc_array(tmp_ctx, struct lsa_String, 1);
635 ln.out.rids = &rids;
636 ln.out.types = &types;
637 if (!ln.in.names) {
638 r->out.error_string = NULL;
639 talloc_free(tmp_ctx);
640 return NT_STATUS_NO_MEMORY;
641 }
642 ln.in.names[0].string = r->in.account_name;
643
644 /* 5. do a samr_LookupNames to get the users rid */
645 status = dcerpc_samr_LookupNames_r(samr_pipe->binding_handle, tmp_ctx, &ln);
646 if (NT_STATUS_IS_OK(status) && !NT_STATUS_IS_OK(ln.out.result)) {
647 status = ln.out.result;
648 }
649 if (!NT_STATUS_IS_OK(status)) {
650 r->out.error_string = talloc_asprintf(mem_ctx,
651 "samr_LookupNames for [%s] failed: %s",
652 r->in.account_name,
653 nt_errstr(status));
654 talloc_free(tmp_ctx);
655 return status;
656 }
657
658 /* check if we got one RID for the user */
659 if (ln.out.rids->count != 1) {
660 r->out.error_string = talloc_asprintf(mem_ctx,
661 "samr_LookupNames for [%s] returns %d RIDs",
662 r->in.account_name, ln.out.rids->count);
663 talloc_free(tmp_ctx);
664 return NT_STATUS_INVALID_PARAMETER;
665 }
666
667 /* prepare samr_OpenUser */
668 ZERO_STRUCTP(u_handle);
669 ou.in.domain_handle = &d_handle;
670 ou.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
671 ou.in.rid = ln.out.rids->ids[0];
672 rid = ou.in.rid;
673 ou.out.user_handle = u_handle;
674
675 /* 6. do a samr_OpenUser to get a user handle */
676 status = dcerpc_samr_OpenUser_r(samr_pipe->binding_handle, tmp_ctx, &ou);
677 if (NT_STATUS_IS_OK(status) && !NT_STATUS_IS_OK(ou.out.result)) {
678 status = ou.out.result;
679 }
680 if (!NT_STATUS_IS_OK(status)) {
681 r->out.error_string = talloc_asprintf(mem_ctx,
682 "samr_OpenUser for [%s] failed: %s",
683 r->in.account_name,
684 nt_errstr(status));
685 talloc_free(tmp_ctx);
686 return status;
687 }
688
689 if (r->in.recreate_account) {
690 struct samr_DeleteUser d;
691 d.in.user_handle = u_handle;
692 d.out.user_handle = u_handle;
693 status = dcerpc_samr_DeleteUser_r(samr_pipe->binding_handle, mem_ctx, &d);
694 if (NT_STATUS_IS_OK(status) && !NT_STATUS_IS_OK(d.out.result)) {
695 status = d.out.result;
696 }
697 if (!NT_STATUS_IS_OK(status)) {
698 r->out.error_string = talloc_asprintf(mem_ctx,
699 "samr_DeleteUser (for recreate) of [%s] failed: %s",
700 r->in.account_name,
701 nt_errstr(status));
702 talloc_free(tmp_ctx);
703 return status;
704 }
705
706 /* We want to recreate, so delete and another samr_CreateUser2 */
707
708 /* &cu filled in above */
709 status = dcerpc_samr_CreateUser2_r(samr_pipe->binding_handle, tmp_ctx, &cu);
710 if (NT_STATUS_IS_OK(status) && !NT_STATUS_IS_OK(cu.out.result)) {
711 status = cu.out.result;
712 }
713 if (!NT_STATUS_IS_OK(status)) {
714 r->out.error_string = talloc_asprintf(mem_ctx,
715 "samr_CreateUser2 (recreate) for [%s] failed: %s",
716 r->in.account_name, nt_errstr(status));
717 talloc_free(tmp_ctx);
718 return status;
719 }
720 }
721 } else if (!NT_STATUS_IS_OK(status)) {
722 r->out.error_string = talloc_asprintf(mem_ctx,
723 "samr_CreateUser2 for [%s] failed: %s",
724 r->in.account_name, nt_errstr(status));
725 talloc_free(tmp_ctx);
726 return status;
727 }
728
729 /* prepare samr_QueryUserInfo (get flags) */
730 qui.in.user_handle = u_handle;
731 qui.in.level = 16;
732 qui.out.info = &uinfo;
733
734 status = dcerpc_samr_QueryUserInfo_r(samr_pipe->binding_handle, tmp_ctx, &qui);
735 if (NT_STATUS_IS_OK(status) && !NT_STATUS_IS_OK(qui.out.result)) {
736 status = qui.out.result;
737 }
738 if (!NT_STATUS_IS_OK(status)) {
739 r->out.error_string = talloc_asprintf(mem_ctx,
740 "samr_QueryUserInfo for [%s] failed: %s",
741 r->in.account_name,
742 nt_errstr(status));
743 talloc_free(tmp_ctx);
744 return status;
745 }
746
747 if (!uinfo) {
748 status = NT_STATUS_INVALID_PARAMETER;
749 r->out.error_string
750 = talloc_asprintf(mem_ctx,
751 "samr_QueryUserInfo failed to return qui.out.info for [%s]: %s",
752 r->in.account_name, nt_errstr(status));
753 talloc_free(tmp_ctx);
754 return status;
755 }
756
757 old_acct_flags = (uinfo->info16.acct_flags & (ACB_WSTRUST | ACB_SVRTRUST | ACB_DOMTRUST));
758 /* Possibly bail if the account is of the wrong type */
759 if (old_acct_flags
760 != r->in.acct_type) {
761 const char *old_account_type, *new_account_type;
762 switch (old_acct_flags) {
763 case ACB_WSTRUST:
764 old_account_type = "domain member (member)";
765 break;
766 case ACB_SVRTRUST:
767 old_account_type = "domain controller (bdc)";
768 break;
769 case ACB_DOMTRUST:
770 old_account_type = "trusted domain";
771 break;
772 default:
773 return NT_STATUS_INVALID_PARAMETER;
774 }
775 switch (r->in.acct_type) {
776 case ACB_WSTRUST:
777 new_account_type = "domain member (member)";
778 break;
779 case ACB_SVRTRUST:
780 new_account_type = "domain controller (bdc)";
781 break;
782 case ACB_DOMTRUST:
783 new_account_type = "trusted domain";
784 break;
785 default:
786 return NT_STATUS_INVALID_PARAMETER;
787 }
788
789 if (!NT_STATUS_EQUAL(cu_status, NT_STATUS_USER_EXISTS)) {
790 /* We created a new user, but they didn't come out the right type?!? */
791 r->out.error_string
792 = talloc_asprintf(mem_ctx,
793 "We asked to create a new machine account (%s) of type %s, "
794 "but we got an account of type %s. This is unexpected. "
795 "Perhaps delete the account and try again.",
796 r->in.account_name, new_account_type, old_account_type);
797 talloc_free(tmp_ctx);
798 return NT_STATUS_INVALID_PARAMETER;
799 } else {
800 /* The account is of the wrong type, so bail */
801
802 /* TODO: We should allow a --force option to override, and redo this from the top setting r.in.recreate_account */
803 r->out.error_string
804 = talloc_asprintf(mem_ctx,
805 "The machine account (%s) already exists in the domain %s, "
806 "but is a %s. You asked to join as a %s. Please delete "
807 "the account and try again.",
808 r->in.account_name, connect_with_info->out.domain_name, old_account_type, new_account_type);
809 talloc_free(tmp_ctx);
810 return NT_STATUS_USER_EXISTS;
811 }
812 } else {
813 acct_flags = uinfo->info16.acct_flags;
814 }
815
816 acct_flags = (acct_flags & ~(ACB_DISABLED|ACB_PWNOTREQ));
817
818 /* Find out what password policy this user has */
819 pwp.in.user_handle = u_handle;
820 pwp.out.info = &info;
821
822 status = dcerpc_samr_GetUserPwInfo_r(samr_pipe->binding_handle, tmp_ctx, &pwp);
823 if (NT_STATUS_IS_OK(status) && !NT_STATUS_IS_OK(pwp.out.result)) {
824 status = pwp.out.result;
825 }
826 if (NT_STATUS_IS_OK(status)) {
827 policy_min_pw_len = pwp.out.info->min_password_length;
828 }
829
830 /* Grab a password of that minimum length */
831
832 password_str = generate_random_password(tmp_ctx, MAX(8, policy_min_pw_len), 255);
833
834 /* set full_name and reset flags */
835 ZERO_STRUCT(u_info21);
836 u_info21.full_name.string = r->in.account_name;
837 u_info21.acct_flags = acct_flags;
838 u_info21.fields_present = SAMR_FIELD_FULL_NAME | SAMR_FIELD_ACCT_FLAGS;
839
840 r2.samr_handle.level = LIBNET_SET_PASSWORD_SAMR_HANDLE;
841 r2.samr_handle.in.account_name = r->in.account_name;
842 r2.samr_handle.in.newpassword = password_str;
843 r2.samr_handle.in.user_handle = u_handle;
844 r2.samr_handle.in.dcerpc_pipe = samr_pipe;
845 r2.samr_handle.in.info21 = &u_info21;
846
847 status = libnet_SetPassword(ctx, tmp_ctx, &r2);
848 if (!NT_STATUS_IS_OK(status)) {
849 r->out.error_string = talloc_steal(mem_ctx, r2.samr_handle.out.error_string);
850 talloc_free(tmp_ctx);
851 return status;
852 }
853
854 account_sid = dom_sid_add_rid(mem_ctx, connect_with_info->out.domain_sid, rid);
855 if (!account_sid) {
856 r->out.error_string = NULL;
857 talloc_free(tmp_ctx);
858 return NT_STATUS_NO_MEMORY;
859 }
860
861 /* Finish out by pushing various bits of status data out for the caller to use */
862 r->out.join_password = password_str;
863 talloc_steal(mem_ctx, r->out.join_password);
864
865 r->out.domain_sid = connect_with_info->out.domain_sid;
866 talloc_steal(mem_ctx, r->out.domain_sid);
867
868 r->out.account_sid = account_sid;
869 talloc_steal(mem_ctx, r->out.account_sid);
870
871 r->out.domain_name = connect_with_info->out.domain_name;
872 talloc_steal(mem_ctx, r->out.domain_name);
873 r->out.realm = connect_with_info->out.realm;
874 talloc_steal(mem_ctx, r->out.realm);
875 r->out.samr_pipe = samr_pipe;
876 talloc_reparent(tmp_ctx, mem_ctx, samr_pipe);
877 r->out.samr_binding = samr_pipe->binding;
878 talloc_steal(mem_ctx, r->out.samr_binding);
879 r->out.user_handle = u_handle;
880 talloc_steal(mem_ctx, u_handle);
881 r->out.error_string = r2.samr_handle.out.error_string;
882 talloc_steal(mem_ctx, r2.samr_handle.out.error_string);
883 r->out.kvno = 0;
884 r->out.server_dn_str = NULL;
885 talloc_free(tmp_ctx);
886
887 /* Now, if it was AD, then we want to start looking changing a
888 * few more things. Otherwise, we are done. */
889 if (r->out.realm) {
890 status = libnet_JoinADSDomain(ctx, r);
891 return status;
892 }
893
894 return status;
895 }
896
897 static NTSTATUS libnet_Join_primary_domain(struct libnet_context *ctx,
898 TALLOC_CTX *mem_ctx,
899 struct libnet_Join *r)
900 {
901 NTSTATUS status;
902 TALLOC_CTX *tmp_mem;
903 struct libnet_JoinDomain *r2;
904 struct provision_store_self_join_settings *set_secrets;
905 uint32_t acct_type = 0;
906 const char *account_name;
907 const char *netbios_name;
908 const char *error_string;
909
910 r->out.error_string = NULL;
911
912 tmp_mem = talloc_new(mem_ctx);
913 if (!tmp_mem) {
914 return NT_STATUS_NO_MEMORY;
915 }
916
917 r2 = talloc(tmp_mem, struct libnet_JoinDomain);
918 if (!r2) {
919 r->out.error_string = NULL;
920 talloc_free(tmp_mem);
921 return NT_STATUS_NO_MEMORY;
922 }
923
924 if (r->in.join_type == SEC_CHAN_BDC) {
925 acct_type = ACB_SVRTRUST;
926 } else if (r->in.join_type == SEC_CHAN_WKSTA) {
927 acct_type = ACB_WSTRUST;
928 } else {
929 r->out.error_string = NULL;
930 talloc_free(tmp_mem);
931 return NT_STATUS_INVALID_PARAMETER;
932 }
933
934 if (r->in.netbios_name != NULL) {
935 netbios_name = r->in.netbios_name;
936 } else {
937 netbios_name = talloc_strdup(tmp_mem, lpcfg_netbios_name(ctx->lp_ctx));
938 if (!netbios_name) {
939 r->out.error_string = NULL;
940 talloc_free(tmp_mem);
941 return NT_STATUS_NO_MEMORY;
942 }
943 }
944
945 account_name = talloc_asprintf(tmp_mem, "%s$", netbios_name);
946 if (!account_name) {
947 r->out.error_string = NULL;
948 talloc_free(tmp_mem);
949 return NT_STATUS_NO_MEMORY;
950 }
951
952 /*
953 * join the domain
954 */
955 ZERO_STRUCTP(r2);
956 r2->in.domain_name = r->in.domain_name;
957 r2->in.account_name = account_name;
958 r2->in.netbios_name = netbios_name;
959 r2->in.level = LIBNET_JOINDOMAIN_AUTOMATIC;
960 r2->in.acct_type = acct_type;
961 r2->in.recreate_account = false;
962 status = libnet_JoinDomain(ctx, r2, r2);
963 if (!NT_STATUS_IS_OK(status)) {
964 r->out.error_string = talloc_steal(mem_ctx, r2->out.error_string);
965 talloc_free(tmp_mem);
966 return status;
967 }
968
969 set_secrets = talloc(tmp_mem, struct provision_store_self_join_settings);
970 if (!set_secrets) {
971 r->out.error_string = NULL;
972 talloc_free(tmp_mem);
973 return NT_STATUS_NO_MEMORY;
974 }
975
976 ZERO_STRUCTP(set_secrets);
977 set_secrets->domain_name = r2->out.domain_name;
978 set_secrets->realm = r2->out.realm;
979 set_secrets->netbios_name = netbios_name;
980 set_secrets->secure_channel_type = r->in.join_type;
981 set_secrets->machine_password = r2->out.join_password;
982 set_secrets->key_version_number = r2->out.kvno;
983 set_secrets->domain_sid = r2->out.domain_sid;
984
985 status = provision_store_self_join(ctx, ctx->lp_ctx, ctx->event_ctx, set_secrets, &error_string);
986 if (!NT_STATUS_IS_OK(status)) {
987 r->out.error_string = talloc_steal(mem_ctx, error_string);
988 talloc_free(tmp_mem);
989 return status;
990 }
991
992 /* move all out parameter to the callers TALLOC_CTX */
993 r->out.error_string = NULL;
994 r->out.join_password = r2->out.join_password;
995 talloc_reparent(r2, mem_ctx, r2->out.join_password);
996 r->out.domain_sid = r2->out.domain_sid;
997 talloc_reparent(r2, mem_ctx, r2->out.domain_sid);
998 r->out.domain_name = r2->out.domain_name;
999 talloc_reparent(r2, mem_ctx, r2->out.domain_name);
1000 talloc_free(tmp_mem);
1001 return NT_STATUS_OK;
1002 }
1003
1004 NTSTATUS libnet_Join(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_Join *r)
1005 {
1006 switch (r->in.join_type) {
1007 case SEC_CHAN_WKSTA:
1008 return libnet_Join_primary_domain(ctx, mem_ctx, r);
1009 case SEC_CHAN_BDC:
1010 return libnet_Join_primary_domain(ctx, mem_ctx, r);
1011 case SEC_CHAN_DOMAIN:
1012 case SEC_CHAN_DNS_DOMAIN:
1013 case SEC_CHAN_NULL:
1014 break;
1015 }
1016
1017 r->out.error_string = talloc_asprintf(mem_ctx,
1018 "Invalid join type specified (%08X) attempting to join domain %s",
1019 r->in.join_type, r->in.domain_name);
1020 return NT_STATUS_INVALID_PARAMETER;
1021 }
reg import