Line data Source code
1 : /*
2 : Samba Unix/Linux SMB client library
3 : net join commands
4 : Copyright (C) 2021 Guenther Deschner (gd@samba.org)
5 :
6 : This program is free software; you can redistribute it and/or modify
7 : it under the terms of the GNU General Public License as published by
8 : the Free Software Foundation; either version 3 of the License, or
9 : (at your option) any later version.
10 :
11 : This program is distributed in the hope that it will be useful,
12 : but WITHOUT ANY WARRANTY; without even the implied warranty of
13 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 : GNU General Public License for more details.
15 :
16 : You should have received a copy of the GNU General Public License
17 : along with this program. If not, see <http://www.gnu.org/licenses/>.
18 : */
19 :
20 : #include "includes.h"
21 : #include "utils/net.h"
22 : #include <netapi.h>
23 : #include "netapi/netapi_net.h"
24 : #include "libcli/registry/util_reg.h"
25 : #include "libcli/security/dom_sid.h"
26 : #include "lib/cmdline/cmdline.h"
27 :
28 0 : int net_offlinejoin_usage(struct net_context *c, int argc, const char **argv)
29 : {
30 0 : d_printf(_("\nnet offlinejoin [misc. options]\n"
31 : "\tjoins a computer to a domain\n"));
32 0 : d_printf(_("Valid commands:\n"));
33 0 : d_printf(_("\tprovision\t\t\tProvision machine account in AD\n"));
34 0 : d_printf(_("\trequestodj\t\t\tRequest offline domain join\n"));
35 0 : d_printf(_("\tcomposeodj\t\t\tCompose offline domain join blob\n"));
36 0 : net_common_flags_usage(c, argc, argv);
37 0 : return -1;
38 : }
39 :
40 36 : int net_offlinejoin(struct net_context *c, int argc, const char **argv)
41 : {
42 0 : int ret;
43 0 : NET_API_STATUS status;
44 :
45 36 : if ((argc > 0) && (strcasecmp_m(argv[0], "HELP") == 0)) {
46 0 : net_offlinejoin_usage(c, argc, argv);
47 0 : return 0;
48 : }
49 :
50 36 : if (argc == 0) {
51 0 : net_offlinejoin_usage(c, argc, argv);
52 0 : return -1;
53 : }
54 :
55 36 : net_warn_member_options();
56 :
57 36 : status = libnetapi_net_init(&c->netapi_ctx, c->lp_ctx, c->creds);
58 36 : if (status != 0) {
59 0 : return -1;
60 : }
61 :
62 36 : if (c->opt_kerberos) {
63 0 : libnetapi_set_use_kerberos(c->netapi_ctx);
64 : }
65 :
66 36 : if (strcasecmp_m(argv[0], "provision") == 0) {
67 12 : ret = net_offlinejoin_provision(c, argc, argv);
68 12 : if (ret != 0) {
69 0 : return ret;
70 : }
71 : }
72 :
73 36 : if (strcasecmp_m(argv[0], "requestodj") == 0) {
74 18 : ret = net_offlinejoin_requestodj(c, argc, argv);
75 18 : if (ret != 0) {
76 0 : return ret;
77 : }
78 : }
79 :
80 36 : if (strcasecmp_m(argv[0], "composeodj") == 0) {
81 6 : ret = net_offlinejoin_composeodj(c, argc, argv);
82 6 : if (ret != 0) {
83 0 : return ret;
84 : }
85 : }
86 :
87 36 : return 0;
88 : }
89 :
90 0 : static int net_offlinejoin_provision_usage(struct net_context *c, int argc, const char **argv)
91 : {
92 0 : d_printf(_("\nnet offlinejoin provision [misc. options]\n"
93 : "\tProvisions machine account in AD\n"));
94 0 : d_printf(_("Valid options:\n"));
95 0 : d_printf(_("\tdomain=<DOMAIN>\t\t\t\tDefines AD Domain to join\n"));
96 0 : d_printf(_("\tmachine_name=<MACHINE_NAME>\t\tDefines the machine account name\n"));
97 0 : d_printf(_("\tmachine_account_ou=<OU>\t\t\tDefines the machine account organizational unit DN\n"));
98 0 : d_printf(_("\tdcname=<DCNAME>\t\t\t\tSpecify a Domain Controller to join to\n"));
99 0 : d_printf(_("\tdefpwd\t\t\t\t\tUse default machine account password\n"));
100 0 : d_printf(_("\treuse\t\t\t\t\tReuse existing machine account in AD\n"));
101 0 : d_printf(_("\tsavefile=<FILENAME>\t\t\tFile to store the ODJ data\n"));
102 0 : d_printf(_("\tprintblob\t\t\t\tPrint the base64 encoded ODJ data on stdout\n"));
103 0 : net_common_flags_usage(c, argc, argv);
104 0 : return -1;
105 : }
106 :
107 12 : int net_offlinejoin_provision(struct net_context *c,
108 : int argc, const char **argv)
109 : {
110 0 : NET_API_STATUS status;
111 12 : const char *dcname = NULL;
112 12 : const char *domain = NULL;
113 12 : const char *machine_name = NULL;
114 12 : const char *machine_account_ou = NULL;
115 12 : const char *provision_text_data = NULL;
116 12 : uint32_t options = 0;
117 12 : const char *savefile = NULL;
118 12 : bool printblob = false;
119 0 : int i;
120 :
121 12 : if (c->display_usage || argc == 1) {
122 0 : return net_offlinejoin_provision_usage(c, argc, argv);
123 : }
124 :
125 : /* process additional command line args */
126 :
127 70 : for (i = 0; i < argc; i++) {
128 :
129 58 : if (strnequal(argv[i], "domain", strlen("domain"))) {
130 12 : domain = get_string_param(argv[i]);
131 12 : if (domain == NULL) {
132 0 : return -1;
133 : }
134 : }
135 58 : if (strnequal(argv[i], "machine_name", strlen("machine_name"))) {
136 12 : machine_name = get_string_param(argv[i]);
137 12 : if (machine_name == NULL) {
138 0 : return -1;
139 : }
140 : }
141 58 : if (strnequal(argv[i], "machine_account_ou", strlen("machine_account_ou"))) {
142 0 : machine_account_ou = get_string_param(argv[i]);
143 0 : if (machine_account_ou == NULL) {
144 0 : return -1;
145 : }
146 : }
147 58 : if (strnequal(argv[i], "dcname", strlen("dcname"))) {
148 4 : dcname = get_string_param(argv[i]);
149 4 : if (dcname == NULL) {
150 0 : return -1;
151 : }
152 : }
153 58 : if (strnequal(argv[i], "defpwd", strlen("defpwd"))) {
154 6 : options |= NETSETUP_PROVISION_USE_DEFAULT_PASSWORD;
155 : }
156 58 : if (strnequal(argv[i], "reuse", strlen("reuse"))) {
157 0 : options |= NETSETUP_PROVISION_REUSE_ACCOUNT;
158 : }
159 58 : if (strnequal(argv[i], "savefile", strlen("savefile"))) {
160 12 : savefile = get_string_param(argv[i]);
161 12 : if (savefile == NULL) {
162 0 : return -1;
163 : }
164 : }
165 58 : if (strnequal(argv[i], "printblob", strlen("printblob"))) {
166 0 : printblob = true;
167 : }
168 : }
169 :
170 12 : if (domain == NULL) {
171 0 : d_printf("Failed to provision computer account: %s\n",
172 0 : libnetapi_errstr(W_ERROR_V(WERR_INVALID_DOMAINNAME)));
173 0 : return -1;
174 : }
175 :
176 12 : if (machine_name == NULL) {
177 0 : d_printf("Failed to provision computer account: %s\n",
178 0 : libnetapi_errstr(W_ERROR_V(WERR_INVALID_COMPUTERNAME)));
179 0 : return -1;
180 : }
181 :
182 12 : status = NetProvisionComputerAccount(domain,
183 : machine_name,
184 : machine_account_ou,
185 : dcname,
186 : options,
187 : NULL,
188 : 0,
189 : &provision_text_data);
190 12 : if (status != 0) {
191 0 : d_printf("Failed to provision computer account: %s\n",
192 : libnetapi_get_error_string(c->netapi_ctx, status));
193 0 : return status;
194 : }
195 :
196 12 : if (savefile != NULL) {
197 :
198 0 : DATA_BLOB ucs2_blob, blob;
199 0 : bool ok;
200 :
201 : /*
202 : * Windows produces and consumes UTF16/UCS2 encoded blobs
203 : * so we also do it for compatibility. Someone may provision an
204 : * account for a Windows machine with samba.
205 : */
206 12 : ok = push_reg_sz(c, &ucs2_blob, provision_text_data);
207 12 : if (!ok) {
208 0 : return -1;
209 : }
210 :
211 : /* Add the unicode BOM mark */
212 12 : blob = data_blob_talloc(c, NULL, ucs2_blob.length + 2);
213 12 : if (blob.data == NULL) {
214 0 : d_printf("Failed to allocate blob: %s\n",
215 0 : strerror(errno));
216 0 : return -1;
217 : }
218 :
219 12 : blob.data[0] = 0xff;
220 12 : blob.data[1] = 0xfe;
221 :
222 12 : memcpy(blob.data + 2, ucs2_blob.data, ucs2_blob.length);
223 :
224 12 : ok = file_save(savefile, blob.data, blob.length);
225 12 : if (!ok) {
226 0 : d_printf("Failed to save %s: %s\n", savefile,
227 0 : strerror(errno));
228 0 : return -1;
229 : }
230 : }
231 :
232 12 : d_printf("Successfully provisioned computer '%s' in domain '%s'\n",
233 : machine_name, domain);
234 :
235 12 : if (printblob) {
236 0 : printf("%s\n", provision_text_data);
237 : }
238 :
239 12 : return 0;
240 : }
241 :
242 0 : static int net_offlinejoin_requestodj_usage(struct net_context *c, int argc, const char **argv)
243 : {
244 0 : d_printf(_("\nnet offlinejoin requestodj [misc. options]\n"
245 : "\tRequests offline domain join\n"));
246 0 : d_printf(_("Valid options:\n"));
247 0 : d_printf(_("\t-i\t\t\t\t\tRead ODJ data from STDIN\n"));
248 0 : d_printf(_("\tloadfile=<FILENAME>\t\t\tFile that provides the ODJ data\n"));
249 : /*d_printf(_("\tlocalos\t\t\t\t\tModify the local machine\n"));*/
250 0 : net_common_flags_usage(c, argc, argv);
251 0 : return -1;
252 : }
253 :
254 18 : int net_offlinejoin_requestodj(struct net_context *c,
255 : int argc, const char **argv)
256 : {
257 0 : NET_API_STATUS status;
258 18 : uint8_t *provision_bin_data = NULL;
259 18 : size_t provision_bin_data_size = 0;
260 18 : uint32_t options = NETSETUP_PROVISION_ONLINE_CALLER;
261 18 : const char *windows_path = NULL;
262 0 : int i;
263 :
264 18 : if (c->display_usage) {
265 0 : return net_offlinejoin_requestodj_usage(c, argc, argv);
266 : }
267 :
268 : /* process additional command line args */
269 :
270 54 : for (i = 0; i < argc; i++) {
271 :
272 36 : if (strnequal(argv[i], "loadfile", strlen("loadfile"))) {
273 18 : const char *loadfile = NULL;
274 :
275 18 : loadfile = get_string_param(argv[i]);
276 18 : if (loadfile == NULL) {
277 0 : return -1;
278 : }
279 :
280 0 : provision_bin_data =
281 18 : (uint8_t *)file_load(loadfile,
282 : &provision_bin_data_size,
283 : 0,
284 : c);
285 18 : if (provision_bin_data == NULL) {
286 0 : d_printf("Failed to read loadfile: %s\n",
287 : loadfile);
288 0 : return -1;
289 : }
290 : }
291 : #if 0
292 : if (strnequal(argv[i], "localos", strlen("localos"))) {
293 : options |= NETSETUP_PROVISION_ONLINE_CALLER;
294 : }
295 : #endif
296 : }
297 :
298 18 : if (c->opt_stdin) {
299 0 : if (isatty(STDIN_FILENO) == 1) {
300 0 : d_fprintf(stderr,
301 : "hint: stdin waiting for ODJ blob, end "
302 : "with <crtl-D>.\n");
303 : }
304 0 : provision_bin_data =
305 0 : (uint8_t *)fd_load(STDIN_FILENO,
306 : &provision_bin_data_size, 0, c);
307 0 : if (provision_bin_data == NULL) {
308 0 : d_printf("Failed to read ODJ blob from stdin\n");
309 0 : return -1;
310 : }
311 :
312 : /* Strip last newline */
313 0 : if (provision_bin_data[provision_bin_data_size - 1] == '\n') {
314 0 : provision_bin_data[provision_bin_data_size - 1] = '\0';
315 : }
316 : }
317 :
318 18 : if (provision_bin_data == NULL || provision_bin_data_size == 0) {
319 0 : d_printf("Please provide provision data either from file "
320 : "(using loadfile parameter) or from stdin (-i)\n");
321 0 : return -1;
322 : }
323 18 : if (provision_bin_data_size > UINT32_MAX) {
324 0 : d_printf("provision binary data size too big: %zu\n",
325 : provision_bin_data_size);
326 0 : return -1;
327 : }
328 :
329 18 : status = NetRequestOfflineDomainJoin(provision_bin_data,
330 : provision_bin_data_size,
331 : options,
332 : windows_path);
333 18 : if (status != 0 && status != 0x00000a99) {
334 : /* NERR_JoinPerformedMustRestart */
335 0 : printf("Failed to call NetRequestOfflineDomainJoin: %s\n",
336 : libnetapi_get_error_string(c->netapi_ctx, status));
337 0 : return -1;
338 : }
339 :
340 18 : d_printf("Successfully requested Offline Domain Join\n");
341 :
342 18 : return 0;
343 : }
344 :
345 0 : static int net_offlinejoin_composeodj_usage(struct net_context *c,
346 : int argc,
347 : const char **argv)
348 : {
349 0 : d_printf(_("\nnet offlinejoin composeodj [misc. options]\n"
350 : "\tComposes offline domain join blob\n"));
351 0 : d_printf(_("Valid options:\n"));
352 0 : d_printf(_("\tdomain_sid=<SID>\t\t\tThe domain SID\n"));
353 0 : d_printf(_("\tdomain_guid=<GUID>\t\t\tThe domain GUID\n"));
354 0 : d_printf(_("\tforest_name=<NAME>\t\t\tThe forest name\n"));
355 0 : d_printf(_("\tdomain_is_nt4\t\t\t\tThe domain not AD but NT4\n"));
356 0 : d_printf(_("\tsavefile=<FILENAME>\t\t\tFile to store the ODJ data\n"));
357 0 : d_printf(_("\tprintblob\t\t\t\tPrint the base64 encoded ODJ data on stdout\n"));
358 0 : net_common_flags_usage(c, argc, argv);
359 0 : d_printf(_("Example:\n"));
360 0 : d_printf("\tnet offlinejoin composeodj --realm=<realm> "
361 : "--workgroup=<domain> domain_sid=<sid> domain_guid=<guid> "
362 : "forest_name=<name> -S <dc name> -I <dc address> "
363 : "--password=<password> printblob\n");
364 0 : return -1;
365 : }
366 :
367 6 : int net_offlinejoin_composeodj(struct net_context *c,
368 : int argc,
369 : const char **argv)
370 : {
371 6 : struct cli_credentials *creds = samba_cmdline_get_creds();
372 0 : NET_API_STATUS status;
373 6 : const char *dns_domain_name = NULL;
374 6 : const char *netbios_domain_name = NULL;
375 6 : const char *machine_account_name = NULL;
376 6 : const char *machine_account_password = NULL;
377 6 : const char *domain_sid_str = NULL;
378 6 : const char *domain_guid_str = NULL;
379 0 : struct dom_sid domain_sid;
380 0 : struct GUID domain_guid;
381 6 : const char *forest_name = NULL;
382 6 : const char *dc_name = NULL;
383 6 : char dc_address[INET6_ADDRSTRLEN] = { 0 };
384 6 : bool domain_is_ad = true;
385 6 : const char *provision_text_data = NULL;
386 6 : const char *savefile = NULL;
387 6 : bool printblob = false;
388 0 : enum credentials_obtained obtained;
389 0 : bool ok;
390 0 : NTSTATUS ntstatus;
391 0 : int i;
392 :
393 6 : if (c->display_usage || argc < 4) {
394 0 : return net_offlinejoin_composeodj_usage(c, argc, argv);
395 : }
396 :
397 6 : dns_domain_name = cli_credentials_get_realm(creds);
398 6 : netbios_domain_name = cli_credentials_get_domain(creds);
399 :
400 6 : machine_account_name = cli_credentials_get_username_and_obtained(creds, &obtained);
401 6 : if (obtained < CRED_CALLBACK_RESULT) {
402 2 : const char *netbios_name = cli_credentials_get_workstation(creds);
403 2 : cli_credentials_set_username(
404 : creds,
405 2 : talloc_asprintf(c, "%s$", netbios_name),
406 : CRED_SPECIFIED);
407 : }
408 :
409 6 : machine_account_name = cli_credentials_get_username(creds);
410 6 : machine_account_password = cli_credentials_get_password(creds);
411 6 : dc_name = c->opt_host;
412 :
413 6 : if (c->opt_have_ip) {
414 6 : struct sockaddr_in *in4 = NULL;
415 6 : struct sockaddr_in6 *in6 = NULL;
416 6 : const char *p = NULL;
417 :
418 6 : switch(c->opt_dest_ip.ss_family) {
419 6 : case AF_INET:
420 6 : in4 = (struct sockaddr_in *)&c->opt_dest_ip;
421 6 : p = inet_ntop(AF_INET, &in4->sin_addr, dc_address, sizeof(dc_address));
422 6 : break;
423 0 : case AF_INET6:
424 0 : in6 = (struct sockaddr_in6 *)&c->opt_dest_ip;
425 0 : p = inet_ntop(AF_INET6, &in6->sin6_addr, dc_address, sizeof(dc_address));
426 0 : break;
427 0 : default:
428 0 : d_printf("Unknown IP address family\n");
429 0 : return -1;
430 : }
431 :
432 6 : if (p == NULL) {
433 0 : d_fprintf(stderr, "Failed to parse IP address: %s\n", strerror(errno));
434 0 : return -1;
435 : }
436 : }
437 :
438 : /* process additional command line args */
439 :
440 36 : for (i = 0; i < argc; i++) {
441 30 : if (strnequal(argv[i], "domain_sid", strlen("domain_sid"))) {
442 6 : domain_sid_str = get_string_param(argv[i]);
443 6 : if (domain_sid_str == NULL) {
444 0 : return -1;
445 : }
446 : }
447 :
448 30 : if (strnequal(argv[i], "domain_guid", strlen("domain_guid"))) {
449 6 : domain_guid_str = get_string_param(argv[i]);
450 6 : if (domain_guid_str == NULL) {
451 0 : return -1;
452 : }
453 : }
454 :
455 30 : if (strnequal(argv[i], "forest_name", strlen("forest_name"))) {
456 6 : forest_name = get_string_param(argv[i]);
457 6 : if (forest_name == NULL) {
458 0 : return -1;
459 : }
460 : }
461 :
462 30 : if (strnequal(argv[i], "savefile", strlen("savefile"))) {
463 6 : savefile = get_string_param(argv[i]);
464 6 : if (savefile == NULL) {
465 0 : return -1;
466 : }
467 : }
468 :
469 30 : if (strnequal(argv[i], "printblob", strlen("printblob"))) {
470 0 : printblob = true;
471 : }
472 :
473 30 : if (strnequal(argv[i], "domain_is_nt4", strlen("domain_is_nt4"))) {
474 0 : domain_is_ad = false;
475 : }
476 : }
477 :
478 : /* Check command line arguments */
479 :
480 6 : if (savefile == NULL && !printblob) {
481 0 : d_printf("Choose either save the blob to a file or print it\n");
482 0 : return -1;
483 : }
484 :
485 6 : if (dns_domain_name == NULL) {
486 0 : d_printf("Please provide a valid realm parameter (--realm)\n");
487 0 : return -1;
488 : }
489 :
490 6 : if (netbios_domain_name == NULL) {
491 0 : d_printf("Please provide a valid domain parameter (--workgroup)\n");
492 0 : return -1;
493 : }
494 :
495 6 : if (dc_name == NULL) {
496 0 : d_printf("Please provide a valid DC name parameter (-S)\n");
497 0 : return -1;
498 : }
499 :
500 6 : if (strlen(dc_address) == 0) {
501 0 : d_printf("Please provide a valid domain controller address parameter (-I)\n");
502 0 : return -1;
503 : }
504 :
505 6 : if (machine_account_name == NULL) {
506 0 : d_printf("Please provide a valid netbios name parameter\n");
507 0 : return -1;
508 : }
509 :
510 6 : if (machine_account_password == NULL) {
511 0 : d_printf("Please provide a valid password parameter\n");
512 0 : return -1;
513 : }
514 :
515 6 : if (domain_sid_str == NULL) {
516 0 : d_printf("Please provide a valid <domain_sid> parameter\n");
517 0 : return -1;
518 : }
519 :
520 6 : if (domain_guid_str == NULL) {
521 0 : d_printf("Please provide a valid <domain_guid> parameter\n");
522 0 : return -1;
523 : }
524 :
525 6 : if (forest_name == NULL) {
526 0 : d_printf("Please provide a valid <forest_name> parameter\n");
527 0 : return -1;
528 : }
529 :
530 6 : ok = dom_sid_parse(domain_sid_str, &domain_sid);
531 6 : if (!ok) {
532 0 : d_fprintf(stderr, _("Failed to parse domain SID\n"));
533 0 : return -1;
534 : }
535 :
536 6 : ntstatus = GUID_from_string(domain_guid_str, &domain_guid);
537 6 : if (NT_STATUS_IS_ERR(ntstatus)) {
538 0 : d_fprintf(stderr, _("Failed to parse domain GUID\n"));
539 0 : return -1;
540 : }
541 :
542 6 : status = NetComposeOfflineDomainJoin(dns_domain_name,
543 : netbios_domain_name,
544 : (struct domsid *)&domain_sid,
545 : &domain_guid,
546 : forest_name,
547 : machine_account_name,
548 : machine_account_password,
549 : dc_name,
550 : dc_address,
551 : domain_is_ad,
552 : NULL,
553 : 0,
554 : &provision_text_data);
555 6 : if (status != 0) {
556 0 : d_printf("Failed to compose offline domain join blob: %s\n",
557 : libnetapi_get_error_string(c->netapi_ctx, status));
558 0 : return status;
559 : }
560 :
561 6 : if (savefile != NULL) {
562 0 : DATA_BLOB ucs2_blob, blob;
563 :
564 : /*
565 : * Windows produces and consumes UTF16/UCS2 encoded blobs
566 : * so we also do it for compatibility. Someone may provision an
567 : * account for a Windows machine with samba.
568 : */
569 6 : ok = push_reg_sz(c, &ucs2_blob, provision_text_data);
570 6 : if (!ok) {
571 0 : return -1;
572 : }
573 :
574 : /* Add the unicode BOM mark */
575 6 : blob = data_blob_talloc(c, NULL, ucs2_blob.length + 2);
576 6 : if (blob.data == NULL) {
577 0 : d_printf("Failed to allocate blob: %s\n",
578 0 : strerror(errno));
579 0 : return -1;
580 : }
581 :
582 6 : blob.data[0] = 0xff;
583 6 : blob.data[1] = 0xfe;
584 :
585 6 : memcpy(blob.data + 2, ucs2_blob.data, ucs2_blob.length);
586 :
587 6 : ok = file_save(savefile, blob.data, blob.length);
588 6 : if (!ok) {
589 0 : d_printf("Failed to save %s: %s\n", savefile,
590 0 : strerror(errno));
591 0 : return -1;
592 : }
593 : }
594 :
595 6 : if (printblob) {
596 0 : printf("%s\n", provision_text_data);
597 : }
598 :
599 6 : return 0;
600 : }
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