s3 net: Fix compile warnings
[nivanova/samba-autobuild/.git] / source3 / utils / net_util.c
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
27 NTSTATUS 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
92 NTSTATUS 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         c->opt_password = net_prompt_pass(c, c->opt_user_name);
103
104         if (c->opt_kerberos) {
105                 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
106         }
107
108         if (c->opt_kerberos && c->opt_password) {
109                 flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
110         }
111
112         nt_status = cli_full_connection(cli_ctx, NULL, server_name,
113                                         server_ss, c->opt_port,
114                                         service_name, service_type,
115                                         c->opt_user_name, c->opt_workgroup,
116                                         c->opt_password, flags, Undefined, NULL);
117         if (!NT_STATUS_IS_OK(nt_status)) {
118                 d_fprintf(stderr, _("Could not connect to server %s\n"),
119                           server_name);
120
121                 /* Display a nicer message depending on the result */
122
123                 if (NT_STATUS_V(nt_status) ==
124                     NT_STATUS_V(NT_STATUS_LOGON_FAILURE))
125                         d_fprintf(stderr,
126                                   _("The username or password was not "
127                                     "correct.\n"));
128
129                 if (NT_STATUS_V(nt_status) ==
130                     NT_STATUS_V(NT_STATUS_ACCOUNT_LOCKED_OUT))
131                         d_fprintf(stderr, _("The account was locked out.\n"));
132
133                 if (NT_STATUS_V(nt_status) ==
134                     NT_STATUS_V(NT_STATUS_ACCOUNT_DISABLED))
135                         d_fprintf(stderr, _("The account was disabled.\n"));
136                 return nt_status;
137         }
138
139         if (c->smb_encrypt) {
140                 nt_status = cli_force_encryption(*cli_ctx,
141                                         c->opt_user_name,
142                                         c->opt_password,
143                                         c->opt_workgroup);
144
145                 if (NT_STATUS_EQUAL(nt_status,NT_STATUS_NOT_SUPPORTED)) {
146                         d_printf(_("Encryption required and "
147                                 "server that doesn't support "
148                                 "UNIX extensions - failing connect\n"));
149                 } else if (NT_STATUS_EQUAL(nt_status,NT_STATUS_UNKNOWN_REVISION)) {
150                         d_printf(_("Encryption required and "
151                                 "can't get UNIX CIFS extensions "
152                                 "version from server.\n"));
153                 } else if (NT_STATUS_EQUAL(nt_status,NT_STATUS_UNSUPPORTED_COMPRESSION)) {
154                         d_printf(_("Encryption required and "
155                                 "share %s doesn't support "
156                                 "encryption.\n"), service_name);
157                 } else if (!NT_STATUS_IS_OK(nt_status)) {
158                         d_printf(_("Encryption required and "
159                                 "setup failed with error %s.\n"),
160                                 nt_errstr(nt_status));
161                 }
162
163                 if (!NT_STATUS_IS_OK(nt_status)) {
164                         cli_shutdown(*cli_ctx);
165                         *cli_ctx = NULL;
166                 }
167         }
168
169         return nt_status;
170 }
171
172 /****************************************************************************
173  Connect to \\server\ipc$.
174 ****************************************************************************/
175
176 NTSTATUS connect_to_ipc(struct net_context *c,
177                         struct cli_state **cli_ctx,
178                         struct sockaddr_storage *server_ss,
179                         const char *server_name)
180 {
181         return connect_to_service(c, cli_ctx, server_ss, server_name, "IPC$",
182                                   "IPC");
183 }
184
185 /****************************************************************************
186  Connect to \\server\ipc$ anonymously.
187 ****************************************************************************/
188
189 NTSTATUS connect_to_ipc_anonymous(struct net_context *c,
190                                 struct cli_state **cli_ctx,
191                                 struct sockaddr_storage *server_ss,
192                                 const char *server_name)
193 {
194         NTSTATUS nt_status;
195
196         nt_status = cli_full_connection(cli_ctx, c->opt_requester_name,
197                                         server_name, server_ss, c->opt_port,
198                                         "IPC$", "IPC",
199                                         "", "",
200                                         "", 0, Undefined, NULL);
201
202         if (NT_STATUS_IS_OK(nt_status)) {
203                 return nt_status;
204         } else {
205                 DEBUG(1,("Cannot connect to server (anonymously).  Error was %s\n", nt_errstr(nt_status)));
206                 return nt_status;
207         }
208 }
209
210 /****************************************************************************
211  Return malloced user@realm for krb5 login.
212 ****************************************************************************/
213
214 static char *get_user_and_realm(const char *username)
215 {
216         char *user_and_realm = NULL;
217
218         if (!username) {
219                 return NULL;
220         }
221         if (strchr_m(username, '@')) {
222                 user_and_realm = SMB_STRDUP(username);
223         } else {
224                 if (asprintf(&user_and_realm, "%s@%s", username, lp_realm()) == -1) {
225                         user_and_realm = NULL;
226                 }
227         }
228         return user_and_realm;
229 }
230
231 /****************************************************************************
232  Connect to \\server\ipc$ using KRB5.
233 ****************************************************************************/
234
235 NTSTATUS connect_to_ipc_krb5(struct net_context *c,
236                         struct cli_state **cli_ctx,
237                         struct sockaddr_storage *server_ss,
238                         const char *server_name)
239 {
240         NTSTATUS nt_status;
241         char *user_and_realm = NULL;
242
243         /* FIXME: Should get existing kerberos ticket if possible. */
244         c->opt_password = net_prompt_pass(c, c->opt_user_name);
245         if (!c->opt_password) {
246                 return NT_STATUS_NO_MEMORY;
247         }
248
249         user_and_realm = get_user_and_realm(c->opt_user_name);
250         if (!user_and_realm) {
251                 return NT_STATUS_NO_MEMORY;
252         }
253
254         nt_status = cli_full_connection(cli_ctx, NULL, server_name,
255                                         server_ss, c->opt_port,
256                                         "IPC$", "IPC",
257                                         user_and_realm, c->opt_workgroup,
258                                         c->opt_password,
259                                         CLI_FULL_CONNECTION_USE_KERBEROS,
260                                         Undefined, NULL);
261
262         SAFE_FREE(user_and_realm);
263
264         if (!NT_STATUS_IS_OK(nt_status)) {
265                 DEBUG(1,("Cannot connect to server using kerberos.  Error was %s\n", nt_errstr(nt_status)));
266                 return nt_status;
267         }
268
269         if (c->smb_encrypt) {
270                 nt_status = cli_cm_force_encryption(*cli_ctx,
271                                         user_and_realm,
272                                         c->opt_password,
273                                         c->opt_workgroup,
274                                         "IPC$");
275                 if (!NT_STATUS_IS_OK(nt_status)) {
276                         cli_shutdown(*cli_ctx);
277                         *cli_ctx = NULL;
278                 }
279         }
280
281         return nt_status;
282 }
283
284 /**
285  * Connect a server and open a given pipe
286  *
287  * @param cli_dst               A cli_state
288  * @param pipe                  The pipe to open
289  * @param got_pipe              boolean that stores if we got a pipe
290  *
291  * @return Normal NTSTATUS return.
292  **/
293 NTSTATUS connect_dst_pipe(struct net_context *c, struct cli_state **cli_dst,
294                           struct rpc_pipe_client **pp_pipe_hnd,
295                           const struct ndr_syntax_id *interface)
296 {
297         NTSTATUS nt_status;
298         char *server_name = SMB_STRDUP("127.0.0.1");
299         struct cli_state *cli_tmp = NULL;
300         struct rpc_pipe_client *pipe_hnd = NULL;
301
302         if (server_name == NULL) {
303                 return NT_STATUS_NO_MEMORY;
304         }
305
306         if (c->opt_destination) {
307                 SAFE_FREE(server_name);
308                 if ((server_name = SMB_STRDUP(c->opt_destination)) == NULL) {
309                         return NT_STATUS_NO_MEMORY;
310                 }
311         }
312
313         /* make a connection to a named pipe */
314         nt_status = connect_to_ipc(c, &cli_tmp, NULL, server_name);
315         if (!NT_STATUS_IS_OK(nt_status)) {
316                 SAFE_FREE(server_name);
317                 return nt_status;
318         }
319
320         nt_status = cli_rpc_pipe_open_noauth(cli_tmp, interface,
321                                              &pipe_hnd);
322         if (!NT_STATUS_IS_OK(nt_status)) {
323                 DEBUG(0, ("couldn't not initialize pipe\n"));
324                 cli_shutdown(cli_tmp);
325                 SAFE_FREE(server_name);
326                 return nt_status;
327         }
328
329         *cli_dst = cli_tmp;
330         *pp_pipe_hnd = pipe_hnd;
331         SAFE_FREE(server_name);
332
333         return nt_status;
334 }
335
336 /****************************************************************************
337  Use the local machine account (krb) and password for this session.
338 ****************************************************************************/
339
340 int net_use_krb_machine_account(struct net_context *c)
341 {
342         char *user_name = NULL;
343
344         if (!secrets_init()) {
345                 d_fprintf(stderr,_("ERROR: Unable to open secrets database\n"));
346                 exit(1);
347         }
348
349         c->opt_password = secrets_fetch_machine_password(
350                                 c->opt_target_workgroup, NULL, NULL);
351         if (asprintf(&user_name, "%s$@%s", global_myname(), lp_realm()) == -1) {
352                 return -1;
353         }
354         c->opt_user_name = user_name;
355         return 0;
356 }
357
358 /****************************************************************************
359  Use the machine account name and password for this session.
360 ****************************************************************************/
361
362 int net_use_machine_account(struct net_context *c)
363 {
364         char *user_name = NULL;
365
366         if (!secrets_init()) {
367                 d_fprintf(stderr,_("ERROR: Unable to open secrets database\n"));
368                 exit(1);
369         }
370
371         c->opt_password = secrets_fetch_machine_password(
372                                 c->opt_target_workgroup, NULL, NULL);
373         if (asprintf(&user_name, "%s$", global_myname()) == -1) {
374                 return -1;
375         }
376         c->opt_user_name = user_name;
377         return 0;
378 }
379
380 bool net_find_server(struct net_context *c,
381                         const char *domain,
382                         unsigned flags,
383                         struct sockaddr_storage *server_ss,
384                         char **server_name)
385 {
386         const char *d = domain ? domain : c->opt_target_workgroup;
387
388         if (c->opt_host) {
389                 *server_name = SMB_STRDUP(c->opt_host);
390         }
391
392         if (c->opt_have_ip) {
393                 *server_ss = c->opt_dest_ip;
394                 if (!*server_name) {
395                         char addr[INET6_ADDRSTRLEN];
396                         print_sockaddr(addr, sizeof(addr), &c->opt_dest_ip);
397                         *server_name = SMB_STRDUP(addr);
398                 }
399         } else if (*server_name) {
400                 /* resolve the IP address */
401                 if (!resolve_name(*server_name, server_ss, 0x20, false))  {
402                         DEBUG(1,("Unable to resolve server name\n"));
403                         return false;
404                 }
405         } else if (flags & NET_FLAGS_PDC) {
406                 fstring dc_name;
407                 struct sockaddr_storage pdc_ss;
408
409                 if (!get_pdc_ip(d, &pdc_ss)) {
410                         DEBUG(1,("Unable to resolve PDC server address\n"));
411                         return false;
412                 }
413
414                 if (is_zero_addr((struct sockaddr *)&pdc_ss)) {
415                         return false;
416                 }
417
418                 if (!name_status_find(d, 0x1b, 0x20, &pdc_ss, dc_name)) {
419                         return false;
420                 }
421
422                 *server_name = SMB_STRDUP(dc_name);
423                 *server_ss = pdc_ss;
424         } else if (flags & NET_FLAGS_DMB) {
425                 struct sockaddr_storage msbrow_ss;
426                 char addr[INET6_ADDRSTRLEN];
427
428                 /*  if (!resolve_name(MSBROWSE, &msbrow_ip, 1, false)) */
429                 if (!resolve_name(d, &msbrow_ss, 0x1B, false))  {
430                         DEBUG(1,("Unable to resolve domain browser via name lookup\n"));
431                         return false;
432                 }
433                 *server_ss = msbrow_ss;
434                 print_sockaddr(addr, sizeof(addr), server_ss);
435                 *server_name = SMB_STRDUP(addr);
436         } else if (flags & NET_FLAGS_MASTER) {
437                 struct sockaddr_storage brow_ss;
438                 char addr[INET6_ADDRSTRLEN];
439                 if (!resolve_name(d, &brow_ss, 0x1D, false))  {
440                                 /* go looking for workgroups */
441                         DEBUG(1,("Unable to resolve master browser via name lookup\n"));
442                         return false;
443                 }
444                 *server_ss = brow_ss;
445                 print_sockaddr(addr, sizeof(addr), server_ss);
446                 *server_name = SMB_STRDUP(addr);
447         } else if (!(flags & NET_FLAGS_LOCALHOST_DEFAULT_INSANE)) {
448                 if (!interpret_string_addr(server_ss,
449                                         "127.0.0.1", AI_NUMERICHOST)) {
450                         DEBUG(1,("Unable to resolve 127.0.0.1\n"));
451                         return false;
452                 }
453                 *server_name = SMB_STRDUP("127.0.0.1");
454         }
455
456         if (!*server_name) {
457                 DEBUG(1,("no server to connect to\n"));
458                 return false;
459         }
460
461         return true;
462 }
463
464 bool net_find_pdc(struct sockaddr_storage *server_ss,
465                 fstring server_name,
466                 const char *domain_name)
467 {
468         if (!get_pdc_ip(domain_name, server_ss)) {
469                 return false;
470         }
471         if (is_zero_addr((struct sockaddr *)server_ss)) {
472                 return false;
473         }
474
475         if (!name_status_find(domain_name, 0x1b, 0x20, server_ss, server_name)) {
476                 return false;
477         }
478
479         return true;
480 }
481
482 NTSTATUS net_make_ipc_connection(struct net_context *c, unsigned flags,
483                                  struct cli_state **pcli)
484 {
485         return net_make_ipc_connection_ex(c, c->opt_workgroup, NULL, NULL, flags, pcli);
486 }
487
488 NTSTATUS net_make_ipc_connection_ex(struct net_context *c ,const char *domain,
489                                     const char *server,
490                                     struct sockaddr_storage *pss,
491                                     unsigned flags, struct cli_state **pcli)
492 {
493         char *server_name = NULL;
494         struct sockaddr_storage server_ss;
495         struct cli_state *cli = NULL;
496         NTSTATUS nt_status;
497
498         if ( !server || !pss ) {
499                 if (!net_find_server(c, domain, flags, &server_ss,
500                                      &server_name)) {
501                         d_fprintf(stderr, _("Unable to find a suitable server "
502                                 "for domain %s\n"), domain);
503                         nt_status = NT_STATUS_UNSUCCESSFUL;
504                         goto done;
505                 }
506         } else {
507                 server_name = SMB_STRDUP( server );
508                 server_ss = *pss;
509         }
510
511         if (flags & NET_FLAGS_ANONYMOUS) {
512                 nt_status = connect_to_ipc_anonymous(c, &cli, &server_ss,
513                                                      server_name);
514         } else {
515                 nt_status = connect_to_ipc(c, &cli, &server_ss,
516                                            server_name);
517         }
518
519         /* store the server in the affinity cache if it was a PDC */
520
521         if ( (flags & NET_FLAGS_PDC) && NT_STATUS_IS_OK(nt_status) )
522                 saf_store( cli->server_domain, cli->desthost );
523
524         SAFE_FREE(server_name);
525         if (!NT_STATUS_IS_OK(nt_status)) {
526                 d_fprintf(stderr, _("Connection failed: %s\n"),
527                           nt_errstr(nt_status));
528                 cli = NULL;
529         } else if (c->opt_request_timeout) {
530                 cli_set_timeout(cli, c->opt_request_timeout * 1000);
531         }
532
533 done:
534         if (pcli != NULL) {
535                 *pcli = cli;
536         }
537         return nt_status;
538 }
539
540 /****************************************************************************
541 ****************************************************************************/
542
543 const char *net_prompt_pass(struct net_context *c, const char *user)
544 {
545         char *prompt = NULL;
546         const char *pass = NULL;
547
548         if (c->opt_password) {
549                 return c->opt_password;
550         }
551
552         if (c->opt_machine_pass) {
553                 return NULL;
554         }
555
556         if (c->opt_kerberos && !c->opt_user_specified) {
557                 return NULL;
558         }
559
560         if (asprintf(&prompt, _("Enter %s's password:"), user) == -1) {
561                 return NULL;
562         }
563
564         pass = getpass(prompt);
565         SAFE_FREE(prompt);
566
567         return pass;
568 }
569
570 int net_run_function(struct net_context *c, int argc, const char **argv,
571                       const char *whoami, struct functable *table)
572 {
573         int i;
574
575         if (argc != 0) {
576                 for (i=0; table[i].funcname != NULL; i++) {
577                         if (StrCaseCmp(argv[0], table[i].funcname) == 0)
578                                 return table[i].fn(c, argc-1, argv+1);
579                 }
580         }
581
582         if (c->display_usage == false) {
583                 d_fprintf(stderr, _("Invalid command: %s %s\n"), whoami,
584                           (argc > 0)?argv[0]:"");
585         }
586         d_printf(_("Usage:\n"));
587         for (i=0; table[i].funcname != NULL; i++) {
588                 if(c->display_usage == false)
589                         d_printf("%s %-15s %s\n", whoami, table[i].funcname,
590                                  _(table[i].description));
591                 else
592                         d_printf("%s\n", _(table[i].usage));
593         }
594
595         return c->display_usage?0:-1;
596 }
597
598 void net_display_usage_from_functable(struct functable *table)
599 {
600         int i;
601         for (i=0; table[i].funcname != NULL; i++) {
602                 d_printf("%s\n", _(table[i].usage));
603         }
604 }
605
606 const char *net_share_type_str(int num_type)
607 {
608         switch(num_type) {
609                 case 0: return _("Disk");
610                 case 1: return _("Print");
611                 case 2: return _("Dev");
612                 case 3: return _("IPC");
613                 default: return _("Unknown");
614         }
615 }
616
617 NTSTATUS net_scan_dc(struct net_context *c,
618                      struct cli_state *cli,
619                      struct net_dc_info *dc_info)
620 {
621         TALLOC_CTX *mem_ctx = talloc_tos();
622         struct rpc_pipe_client *dssetup_pipe = NULL;
623         union dssetup_DsRoleInfo info;
624         NTSTATUS status;
625
626         ZERO_STRUCTP(dc_info);
627
628         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_dssetup.syntax_id,
629                                           &dssetup_pipe);
630         if (!NT_STATUS_IS_OK(status)) {
631                 return status;
632         }
633
634         status = rpccli_dssetup_DsRoleGetPrimaryDomainInformation(dssetup_pipe, mem_ctx,
635                                                                   DS_ROLE_BASIC_INFORMATION,
636                                                                   &info,
637                                                                   NULL);
638         TALLOC_FREE(dssetup_pipe);
639
640         if (!NT_STATUS_IS_OK(status)) {
641                 return status;
642         }
643
644         dc_info->is_dc  = (info.basic.role & (DS_ROLE_PRIMARY_DC|DS_ROLE_BACKUP_DC));
645         dc_info->is_pdc = (info.basic.role & DS_ROLE_PRIMARY_DC);
646         dc_info->is_ad  = (info.basic.flags & DS_ROLE_PRIMARY_DS_RUNNING);
647         dc_info->is_mixed_mode = (info.basic.flags & DS_ROLE_PRIMARY_DS_MIXED_MODE);
648         dc_info->netbios_domain_name = talloc_strdup(mem_ctx, info.basic.domain);
649         dc_info->dns_domain_name = talloc_strdup(mem_ctx, info.basic.dns_domain);
650         dc_info->forest_name = talloc_strdup(mem_ctx, info.basic.forest);
651
652         return NT_STATUS_OK;
653 }