source: branches/samba-3.5.x/source3/utils/net_util.c

Last change on this file was 454, checked in by Silvan Scherrer, 15 years ago

Samba Server 3.5: merged changes from 3.3
File size: 17.3 KB
Line 
1/*
2 * Unix SMB/CIFS implementation.
3 * Helper routines for net
4 * Copyright (C) Volker Lendecke 2006
5 * Copyright (C) Kai Blin 2008
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
22#include "includes.h"
23#include "utils/net.h"
24#include "../librpc/gen_ndr/cli_lsa.h"
25#include "../librpc/gen_ndr/cli_dssetup.h"
26
27NTSTATUS net_rpc_lookup_name(struct net_context *c,
28 TALLOC_CTX *mem_ctx, struct cli_state *cli,
29 const char *name, const char **ret_domain,
30 const char **ret_name, DOM_SID *ret_sid,
31 enum lsa_SidType *ret_type)
32{
33 struct rpc_pipe_client *lsa_pipe = NULL;
34 struct policy_handle pol;
35 NTSTATUS result = NT_STATUS_OK;
36 const char **dom_names;
37 DOM_SID *sids;
38 enum lsa_SidType *types;
39
40 ZERO_STRUCT(pol);
41
42 result = cli_rpc_pipe_open_noauth(cli, &ndr_table_lsarpc.syntax_id,
43 &lsa_pipe);
44 if (!NT_STATUS_IS_OK(result)) {
45 d_fprintf(stderr, _("Could not initialise lsa pipe\n"));
46 return result;
47 }
48
49 result = rpccli_lsa_open_policy(lsa_pipe, mem_ctx, false,
50 SEC_FLAG_MAXIMUM_ALLOWED,
51 &pol);
52 if (!NT_STATUS_IS_OK(result)) {
53 d_fprintf(stderr, "open_policy %s: %s\n", _("failed"),
54 nt_errstr(result));
55 return result;
56 }
57
58 result = rpccli_lsa_lookup_names(lsa_pipe, mem_ctx, &pol, 1,
59 &name, &dom_names, 1, &sids, &types);
60
61 if (!NT_STATUS_IS_OK(result)) {
62 /* This can happen easily, don't log an error */
63 goto done;
64 }
65
66 if (ret_domain != NULL) {
67 *ret_domain = dom_names[0];
68 }
69 if (ret_name != NULL) {
70 *ret_name = talloc_strdup(mem_ctx, name);
71 }
72 if (ret_sid != NULL) {
73 sid_copy(ret_sid, &sids[0]);
74 }
75 if (ret_type != NULL) {
76 *ret_type = types[0];
77 }
78
79 done:
80 if (is_valid_policy_hnd(&pol)) {
81 rpccli_lsa_Close(lsa_pipe, mem_ctx, &pol);
82 }
83 TALLOC_FREE(lsa_pipe);
84
85 return result;
86}
87
88/****************************************************************************
89 Connect to \\server\service.
90****************************************************************************/
91
92NTSTATUS connect_to_service(struct net_context *c,
93 struct cli_state **cli_ctx,
94 struct sockaddr_storage *server_ss,
95 const char *server_name,
96 const char *service_name,
97 const char *service_type)
98{
99 NTSTATUS nt_status;
100 int flags = 0;
101
102#ifdef __OS2__
103 if (!c->opt_user_name || c->opt_user_name == NULL) {
104 d_printf("The username was not set.\n");
105 return NT_STATUS_LOGON_FAILURE;
106 }
107#endif
108
109 c->opt_password = net_prompt_pass(c, c->opt_user_name);
110
111 if (c->opt_kerberos) {
112 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
113 }
114
115 if (c->opt_kerberos && c->opt_password) {
116 flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
117 }
118
119 if (c->opt_ccache) {
120 flags |= CLI_FULL_CONNECTION_USE_CCACHE;
121 }
122
123 nt_status = cli_full_connection(cli_ctx, NULL, server_name,
124 server_ss, c->opt_port,
125 service_name, service_type,
126 c->opt_user_name, c->opt_workgroup,
127 c->opt_password, flags, Undefined, NULL);
128 if (!NT_STATUS_IS_OK(nt_status)) {
129 d_fprintf(stderr, _("Could not connect to server %s\n"),
130 server_name);
131
132 /* Display a nicer message depending on the result */
133
134 if (NT_STATUS_V(nt_status) ==
135 NT_STATUS_V(NT_STATUS_LOGON_FAILURE))
136 d_fprintf(stderr,
137 _("The username or password was not "
138 "correct.\n"));
139
140 if (NT_STATUS_V(nt_status) ==
141 NT_STATUS_V(NT_STATUS_ACCOUNT_LOCKED_OUT))
142 d_fprintf(stderr, _("The account was locked out.\n"));
143
144 if (NT_STATUS_V(nt_status) ==
145 NT_STATUS_V(NT_STATUS_ACCOUNT_DISABLED))
146 d_fprintf(stderr, _("The account was disabled.\n"));
147 return nt_status;
148 }
149
150 if (c->smb_encrypt) {
151 nt_status = cli_force_encryption(*cli_ctx,
152 c->opt_user_name,
153 c->opt_password,
154 c->opt_workgroup);
155
156 if (NT_STATUS_EQUAL(nt_status,NT_STATUS_NOT_SUPPORTED)) {
157 d_printf(_("Encryption required and "
158 "server that doesn't support "
159 "UNIX extensions - failing connect\n"));
160 } else if (NT_STATUS_EQUAL(nt_status,NT_STATUS_UNKNOWN_REVISION)) {
161 d_printf(_("Encryption required and "
162 "can't get UNIX CIFS extensions "
163 "version from server.\n"));
164 } else if (NT_STATUS_EQUAL(nt_status,NT_STATUS_UNSUPPORTED_COMPRESSION)) {
165 d_printf(_("Encryption required and "
166 "share %s doesn't support "
167 "encryption.\n"), service_name);
168 } else if (!NT_STATUS_IS_OK(nt_status)) {
169 d_printf(_("Encryption required and "
170 "setup failed with error %s.\n"),
171 nt_errstr(nt_status));
172 }
173
174 if (!NT_STATUS_IS_OK(nt_status)) {
175 cli_shutdown(*cli_ctx);
176 *cli_ctx = NULL;
177 }
178 }
179
180 return nt_status;
181}
182
183/****************************************************************************
184 Connect to \\server\ipc$.
185****************************************************************************/
186
187NTSTATUS connect_to_ipc(struct net_context *c,
188 struct cli_state **cli_ctx,
189 struct sockaddr_storage *server_ss,
190 const char *server_name)
191{
192 return connect_to_service(c, cli_ctx, server_ss, server_name, "IPC$",
193 "IPC");
194}
195
196/****************************************************************************
197 Connect to \\server\ipc$ anonymously.
198****************************************************************************/
199
200NTSTATUS connect_to_ipc_anonymous(struct net_context *c,
201 struct cli_state **cli_ctx,
202 struct sockaddr_storage *server_ss,
203 const char *server_name)
204{
205 NTSTATUS nt_status;
206
207 nt_status = cli_full_connection(cli_ctx, c->opt_requester_name,
208 server_name, server_ss, c->opt_port,
209 "IPC$", "IPC",
210 "", "",
211 "", 0, Undefined, NULL);
212
213 if (NT_STATUS_IS_OK(nt_status)) {
214 return nt_status;
215 } else {
216 DEBUG(1,("Cannot connect to server (anonymously). Error was %s\n", nt_errstr(nt_status)));
217 return nt_status;
218 }
219}
220
221/****************************************************************************
222 Return malloced user@realm for krb5 login.
223****************************************************************************/
224
225static char *get_user_and_realm(const char *username)
226{
227 char *user_and_realm = NULL;
228
229 if (!username) {
230 return NULL;
231 }
232 if (strchr_m(username, '@')) {
233 user_and_realm = SMB_STRDUP(username);
234 } else {
235 if (asprintf(&user_and_realm, "%s@%s", username, lp_realm()) == -1) {
236 user_and_realm = NULL;
237 }
238 }
239 return user_and_realm;
240}
241
242/****************************************************************************
243 Connect to \\server\ipc$ using KRB5.
244****************************************************************************/
245
246NTSTATUS connect_to_ipc_krb5(struct net_context *c,
247 struct cli_state **cli_ctx,
248 struct sockaddr_storage *server_ss,
249 const char *server_name)
250{
251 NTSTATUS nt_status;
252 char *user_and_realm = NULL;
253
254 /* FIXME: Should get existing kerberos ticket if possible. */
255 c->opt_password = net_prompt_pass(c, c->opt_user_name);
256 if (!c->opt_password) {
257 return NT_STATUS_NO_MEMORY;
258 }
259
260 user_and_realm = get_user_and_realm(c->opt_user_name);
261 if (!user_and_realm) {
262 return NT_STATUS_NO_MEMORY;
263 }
264
265 nt_status = cli_full_connection(cli_ctx, NULL, server_name,
266 server_ss, c->opt_port,
267 "IPC$", "IPC",
268 user_and_realm, c->opt_workgroup,
269 c->opt_password,
270 CLI_FULL_CONNECTION_USE_KERBEROS,
271 Undefined, NULL);
272
273 SAFE_FREE(user_and_realm);
274
275 if (!NT_STATUS_IS_OK(nt_status)) {
276 DEBUG(1,("Cannot connect to server using kerberos. Error was %s\n", nt_errstr(nt_status)));
277 return nt_status;
278 }
279
280 if (c->smb_encrypt) {
281 nt_status = cli_cm_force_encryption(*cli_ctx,
282 user_and_realm,
283 c->opt_password,
284 c->opt_workgroup,
285 "IPC$");
286 if (!NT_STATUS_IS_OK(nt_status)) {
287 cli_shutdown(*cli_ctx);
288 *cli_ctx = NULL;
289 }
290 }
291
292 return nt_status;
293}
294
295/**
296 * Connect a server and open a given pipe
297 *
298 * @param cli_dst A cli_state
299 * @param pipe The pipe to open
300 * @param got_pipe boolean that stores if we got a pipe
301 *
302 * @return Normal NTSTATUS return.
303 **/
304NTSTATUS connect_dst_pipe(struct net_context *c, struct cli_state **cli_dst,
305 struct rpc_pipe_client **pp_pipe_hnd,
306 const struct ndr_syntax_id *interface)
307{
308 NTSTATUS nt_status;
309 char *server_name = SMB_STRDUP("127.0.0.1");
310 struct cli_state *cli_tmp = NULL;
311 struct rpc_pipe_client *pipe_hnd = NULL;
312
313 if (server_name == NULL) {
314 return NT_STATUS_NO_MEMORY;
315 }
316
317 if (c->opt_destination) {
318 SAFE_FREE(server_name);
319 if ((server_name = SMB_STRDUP(c->opt_destination)) == NULL) {
320 return NT_STATUS_NO_MEMORY;
321 }
322 }
323
324 /* make a connection to a named pipe */
325 nt_status = connect_to_ipc(c, &cli_tmp, NULL, server_name);
326 if (!NT_STATUS_IS_OK(nt_status)) {
327 SAFE_FREE(server_name);
328 return nt_status;
329 }
330
331 nt_status = cli_rpc_pipe_open_noauth(cli_tmp, interface,
332 &pipe_hnd);
333 if (!NT_STATUS_IS_OK(nt_status)) {
334 DEBUG(0, ("couldn't not initialize pipe\n"));
335 cli_shutdown(cli_tmp);
336 SAFE_FREE(server_name);
337 return nt_status;
338 }
339
340 *cli_dst = cli_tmp;
341 *pp_pipe_hnd = pipe_hnd;
342 SAFE_FREE(server_name);
343
344 return nt_status;
345}
346
347/****************************************************************************
348 Use the local machine account (krb) and password for this session.
349****************************************************************************/
350
351int net_use_krb_machine_account(struct net_context *c)
352{
353 char *user_name = NULL;
354
355 if (!secrets_init()) {
356 d_fprintf(stderr,_("ERROR: Unable to open secrets database\n"));
357 exit(1);
358 }
359
360 c->opt_password = secrets_fetch_machine_password(
361 c->opt_target_workgroup, NULL, NULL);
362 if (asprintf(&user_name, "%s$@%s", global_myname(), lp_realm()) == -1) {
363 return -1;
364 }
365 c->opt_user_name = user_name;
366 return 0;
367}
368
369/****************************************************************************
370 Use the machine account name and password for this session.
371****************************************************************************/
372
373int net_use_machine_account(struct net_context *c)
374{
375 char *user_name = NULL;
376
377 if (!secrets_init()) {
378 d_fprintf(stderr,_("ERROR: Unable to open secrets database\n"));
379 exit(1);
380 }
381
382 c->opt_password = secrets_fetch_machine_password(
383 c->opt_target_workgroup, NULL, NULL);
384 if (asprintf(&user_name, "%s$", global_myname()) == -1) {
385 return -1;
386 }
387 c->opt_user_name = user_name;
388 return 0;
389}
390
391bool net_find_server(struct net_context *c,
392 const char *domain,
393 unsigned flags,
394 struct sockaddr_storage *server_ss,
395 char **server_name)
396{
397 const char *d = domain ? domain : c->opt_target_workgroup;
398
399 if (c->opt_host) {
400 *server_name = SMB_STRDUP(c->opt_host);
401 }
402
403 if (c->opt_have_ip) {
404 *server_ss = c->opt_dest_ip;
405 if (!*server_name) {
406 char addr[INET6_ADDRSTRLEN];
407 print_sockaddr(addr, sizeof(addr), &c->opt_dest_ip);
408 *server_name = SMB_STRDUP(addr);
409 }
410 } else if (*server_name) {
411 /* resolve the IP address */
412 if (!resolve_name(*server_name, server_ss, 0x20, false)) {
413 DEBUG(1,("Unable to resolve server name\n"));
414 return false;
415 }
416 } else if (flags & NET_FLAGS_PDC) {
417 fstring dc_name;
418 struct sockaddr_storage pdc_ss;
419
420 if (!get_pdc_ip(d, &pdc_ss)) {
421 DEBUG(1,("Unable to resolve PDC server address\n"));
422 return false;
423 }
424
425 if (is_zero_addr((struct sockaddr *)&pdc_ss)) {
426 return false;
427 }
428
429 if (!name_status_find(d, 0x1b, 0x20, &pdc_ss, dc_name)) {
430 return false;
431 }
432
433 *server_name = SMB_STRDUP(dc_name);
434 *server_ss = pdc_ss;
435 } else if (flags & NET_FLAGS_DMB) {
436 struct sockaddr_storage msbrow_ss;
437 char addr[INET6_ADDRSTRLEN];
438
439 /* if (!resolve_name(MSBROWSE, &msbrow_ip, 1, false)) */
440 if (!resolve_name(d, &msbrow_ss, 0x1B, false)) {
441 DEBUG(1,("Unable to resolve domain browser via name lookup\n"));
442 return false;
443 }
444 *server_ss = msbrow_ss;
445 print_sockaddr(addr, sizeof(addr), server_ss);
446 *server_name = SMB_STRDUP(addr);
447 } else if (flags & NET_FLAGS_MASTER) {
448 struct sockaddr_storage brow_ss;
449 char addr[INET6_ADDRSTRLEN];
450 if (!resolve_name(d, &brow_ss, 0x1D, false)) {
451 /* go looking for workgroups */
452 DEBUG(1,("Unable to resolve master browser via name lookup\n"));
453 return false;
454 }
455 *server_ss = brow_ss;
456 print_sockaddr(addr, sizeof(addr), server_ss);
457 *server_name = SMB_STRDUP(addr);
458 } else if (!(flags & NET_FLAGS_LOCALHOST_DEFAULT_INSANE)) {
459 if (!interpret_string_addr(server_ss,
460 "127.0.0.1", AI_NUMERICHOST)) {
461 DEBUG(1,("Unable to resolve 127.0.0.1\n"));
462 return false;
463 }
464 *server_name = SMB_STRDUP("127.0.0.1");
465 }
466
467 if (!*server_name) {
468 DEBUG(1,("no server to connect to\n"));
469 return false;
470 }
471
472 return true;
473}
474
475bool net_find_pdc(struct sockaddr_storage *server_ss,
476 fstring server_name,
477 const char *domain_name)
478{
479 if (!get_pdc_ip(domain_name, server_ss)) {
480 return false;
481 }
482 if (is_zero_addr((struct sockaddr *)server_ss)) {
483 return false;
484 }
485
486 if (!name_status_find(domain_name, 0x1b, 0x20, server_ss, server_name)) {
487 return false;
488 }
489
490 return true;
491}
492
493NTSTATUS net_make_ipc_connection(struct net_context *c, unsigned flags,
494 struct cli_state **pcli)
495{
496 return net_make_ipc_connection_ex(c, c->opt_workgroup, NULL, NULL, flags, pcli);
497}
498
499NTSTATUS net_make_ipc_connection_ex(struct net_context *c ,const char *domain,
500 const char *server,
501 struct sockaddr_storage *pss,
502 unsigned flags, struct cli_state **pcli)
503{
504 char *server_name = NULL;
505 struct sockaddr_storage server_ss;
506 struct cli_state *cli = NULL;
507 NTSTATUS nt_status;
508
509 if ( !server || !pss ) {
510 if (!net_find_server(c, domain, flags, &server_ss,
511 &server_name)) {
512 d_fprintf(stderr, _("Unable to find a suitable server "
513 "for domain %s\n"), domain);
514 nt_status = NT_STATUS_UNSUCCESSFUL;
515 goto done;
516 }
517 } else {
518 server_name = SMB_STRDUP( server );
519 server_ss = *pss;
520 }
521
522 if (flags & NET_FLAGS_ANONYMOUS) {
523 nt_status = connect_to_ipc_anonymous(c, &cli, &server_ss,
524 server_name);
525 } else {
526 nt_status = connect_to_ipc(c, &cli, &server_ss,
527 server_name);
528 }
529
530 /* store the server in the affinity cache if it was a PDC */
531
532 if ( (flags & NET_FLAGS_PDC) && NT_STATUS_IS_OK(nt_status) )
533 saf_store( cli->server_domain, cli->desthost );
534
535 SAFE_FREE(server_name);
536 if (!NT_STATUS_IS_OK(nt_status)) {
537 d_fprintf(stderr, _("Connection failed: %s\n"),
538 nt_errstr(nt_status));
539 cli = NULL;
540 } else if (c->opt_request_timeout) {
541 cli_set_timeout(cli, c->opt_request_timeout * 1000);
542 }
543
544done:
545 if (pcli != NULL) {
546 *pcli = cli;
547 }
548 return nt_status;
549}
550
551/****************************************************************************
552****************************************************************************/
553
554const char *net_prompt_pass(struct net_context *c, const char *user)
555{
556 char *prompt = NULL;
557 const char *pass = NULL;
558
559 if (c->opt_password) {
560 return c->opt_password;
561 }
562
563 if (c->opt_machine_pass) {
564 return NULL;
565 }
566
567 if (c->opt_kerberos && !c->opt_user_specified) {
568 return NULL;
569 }
570
571 if (asprintf(&prompt, _("Enter %s's password:"), user) == -1) {
572 return NULL;
573 }
574
575 pass = getpass(prompt);
576 SAFE_FREE(prompt);
577
578 return pass;
579}
580
581int net_run_function(struct net_context *c, int argc, const char **argv,
582 const char *whoami, struct functable *table)
583{
584 int i;
585
586 if (argc != 0) {
587 for (i=0; table[i].funcname != NULL; i++) {
588 if (StrCaseCmp(argv[0], table[i].funcname) == 0)
589 return table[i].fn(c, argc-1, argv+1);
590 }
591 }
592
593 if (c->display_usage == false) {
594 d_fprintf(stderr, _("Invalid command: %s %s\n"), whoami,
595 (argc > 0)?argv[0]:"");
596 }
597 d_printf(_("Usage:\n"));
598 for (i=0; table[i].funcname != NULL; i++) {
599 if(c->display_usage == false)
600 d_printf("%s %-15s %s\n", whoami, table[i].funcname,
601 _(table[i].description));
602 else
603 d_printf("%s\n", _(table[i].usage));
604 }
605
606 return c->display_usage?0:-1;
607}
608
609void net_display_usage_from_functable(struct functable *table)
610{
611 int i;
612 for (i=0; table[i].funcname != NULL; i++) {
613 d_printf("%s\n", _(table[i].usage));
614 }
615}
616
617const char *net_share_type_str(int num_type)
618{
619 switch(num_type) {
620 case 0: return _("Disk");
621 case 1: return _("Print");
622 case 2: return _("Dev");
623 case 3: return _("IPC");
624 default: return _("Unknown");
625 }
626}
627
628NTSTATUS net_scan_dc(struct net_context *c,
629 struct cli_state *cli,
630 struct net_dc_info *dc_info)
631{
632 TALLOC_CTX *mem_ctx = talloc_tos();
633 struct rpc_pipe_client *dssetup_pipe = NULL;
634 union dssetup_DsRoleInfo info;
635 NTSTATUS status;
636
637 ZERO_STRUCTP(dc_info);
638
639 status = cli_rpc_pipe_open_noauth(cli, &ndr_table_dssetup.syntax_id,
640 &dssetup_pipe);
641 if (!NT_STATUS_IS_OK(status)) {
642 return status;
643 }
644
645 status = rpccli_dssetup_DsRoleGetPrimaryDomainInformation(dssetup_pipe, mem_ctx,
646 DS_ROLE_BASIC_INFORMATION,
647 &info,
648 NULL);
649 TALLOC_FREE(dssetup_pipe);
650
651 if (!NT_STATUS_IS_OK(status)) {
652 return status;
653 }
654
655 dc_info->is_dc = (info.basic.role & (DS_ROLE_PRIMARY_DC|DS_ROLE_BACKUP_DC));
656 dc_info->is_pdc = (info.basic.role & DS_ROLE_PRIMARY_DC);
657 dc_info->is_ad = (info.basic.flags & DS_ROLE_PRIMARY_DS_RUNNING);
658 dc_info->is_mixed_mode = (info.basic.flags & DS_ROLE_PRIMARY_DS_MIXED_MODE);
659 dc_info->netbios_domain_name = talloc_strdup(mem_ctx, info.basic.domain);
660 dc_info->dns_domain_name = talloc_strdup(mem_ctx, info.basic.dns_domain);
661 dc_info->forest_name = talloc_strdup(mem_ctx, info.basic.forest);
662
663 return NT_STATUS_OK;
664}
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