source: branches/samba-3.5.x/source4/heimdal/kuser/kinit.c

Last change on this file was 414, checked in by Herwig Bauernfeind, 16 years ago

Samba 3.5.0: Initial import
File size: 25.0 KB
Line 
1/*
2 * Copyright (c) 1997-2007 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#include "kuser_locl.h"
35
36#ifndef HEIMDAL_SMALLER
37#include "krb5-v4compat.h"
38#endif
39
40struct krb5_dh_moduli;
41struct AlgorithmIdentifier;
42struct _krb5_krb_auth_data;
43#include <krb5-private.h>
44
45#ifndef NO_NTLM
46#include "heimntlm.h"
47#endif
48
49int forwardable_flag = -1;
50int proxiable_flag = -1;
51int renewable_flag = -1;
52int renew_flag = 0;
53int pac_flag = -1;
54int validate_flag = 0;
55int version_flag = 0;
56int help_flag = 0;
57int addrs_flag = -1;
58struct getarg_strings extra_addresses;
59int anonymous_flag = 0;
60char *lifetime = NULL;
61char *renew_life = NULL;
62char *server_str = NULL;
63char *cred_cache = NULL;
64char *start_str = NULL;
65static int switch_cache_flags = 1;
66struct getarg_strings etype_str;
67int use_keytab = 0;
68char *keytab_str = NULL;
69int do_afslog = -1;
70#ifndef HEIMDAL_SMALLER
71int get_v4_tgt = -1;
72int convert_524 = 0;
73static char *krb4_cc_name;
74#endif
75int fcache_version;
76char *password_file = NULL;
77char *pk_user_id = NULL;
78int pk_enterprise_flag = 0;
79char *pk_x509_anchors = NULL;
80int pk_use_enckey = 0;
81static int canonicalize_flag = 0;
82static int enterprise_flag = 0;
83static int ok_as_delegate_flag = 0;
84static int use_referrals_flag = 0;
85static int windows_flag = 0;
86#ifndef NO_NTLM
87static char *ntlm_domain;
88#endif
89
90
91static struct getargs args[] = {
92 /*
93 * used by MIT
94 * a: ~A
95 * V: verbose
96 * F: ~f
97 * P: ~p
98 * C: v4 cache name?
99 * 5:
100 */
101#ifndef HEIMDAL_SMALLER
102 { "524init", '4', arg_flag, &get_v4_tgt,
103 NP_("obtain version 4 TGT", "") },
104
105 { "524convert", '9', arg_flag, &convert_524,
106 NP_("only convert ticket to version 4", "") },
107#endif
108 { "afslog", 0 , arg_flag, &do_afslog,
109 NP_("obtain afs tokens", "") },
110
111 { "cache", 'c', arg_string, &cred_cache,
112 NP_("credentials cache", ""), "cachename" },
113
114 { "forwardable", 'f', arg_flag, &forwardable_flag,
115 NP_("get forwardable tickets", "")},
116
117 { "keytab", 't', arg_string, &keytab_str,
118 NP_("keytab to use", ""), "keytabname" },
119
120 { "lifetime", 'l', arg_string, &lifetime,
121 NP_("lifetime of tickets", ""), "time"},
122
123 { "proxiable", 'p', arg_flag, &proxiable_flag,
124 NP_("get proxiable tickets", "") },
125
126 { "renew", 'R', arg_flag, &renew_flag,
127 NP_("renew TGT", "") },
128
129 { "renewable", 0, arg_flag, &renewable_flag,
130 NP_("get renewable tickets", "") },
131
132 { "renewable-life", 'r', arg_string, &renew_life,
133 NP_("renewable lifetime of tickets", ""), "time" },
134
135 { "server", 'S', arg_string, &server_str,
136 NP_("server to get ticket for", ""), "principal" },
137
138 { "start-time", 's', arg_string, &start_str,
139 NP_("when ticket gets valid", ""), "time" },
140
141 { "use-keytab", 'k', arg_flag, &use_keytab,
142 NP_("get key from keytab", "") },
143
144 { "validate", 'v', arg_flag, &validate_flag,
145 NP_("validate TGT", "") },
146
147 { "enctypes", 'e', arg_strings, &etype_str,
148 NP_("encryption types to use", ""), "enctypes" },
149
150 { "fcache-version", 0, arg_integer, &fcache_version,
151 NP_("file cache version to create", "") },
152
153 { "addresses", 'A', arg_negative_flag, &addrs_flag,
154 NP_("request a ticket with no addresses", "") },
155
156 { "extra-addresses",'a', arg_strings, &extra_addresses,
157 NP_("include these extra addresses", ""), "addresses" },
158
159 { "anonymous", 0, arg_flag, &anonymous_flag,
160 NP_("request an anonymous ticket", "") },
161
162 { "request-pac", 0, arg_flag, &pac_flag,
163 NP_("request a Windows PAC", "") },
164
165 { "password-file", 0, arg_string, &password_file,
166 NP_("read the password from a file", "") },
167
168 { "canonicalize",0, arg_flag, &canonicalize_flag,
169 NP_("canonicalize client principal", "") },
170
171 { "enterprise",0, arg_flag, &enterprise_flag,
172 NP_("parse principal as a KRB5-NT-ENTERPRISE name", "") },
173#ifdef PKINIT
174 { "pk-enterprise", 0, arg_flag, &pk_enterprise_flag,
175 NP_("use enterprise name from certificate", "") },
176
177 { "pk-user", 'C', arg_string, &pk_user_id,
178 NP_("principal's public/private/certificate identifier", ""), "id" },
179
180 { "x509-anchors", 'D', arg_string, &pk_x509_anchors,
181 NP_("directory with CA certificates", ""), "directory" },
182
183 { "pk-use-enckey", 0, arg_flag, &pk_use_enckey,
184 NP_("Use RSA encrypted reply (instead of DH)", "") },
185#endif
186#ifndef NO_NTLM
187 { "ntlm-domain", 0, arg_string, &ntlm_domain,
188 NP_("NTLM domain", ""), "domain" },
189#endif
190
191 { "change-default", 0, arg_negative_flag, &switch_cache_flags,
192 NP_("switch the default cache to the new credentials cache", "") },
193
194 { "ok-as-delegate", 0, arg_flag, &ok_as_delegate_flag,
195 NP_("honor ok-as-delegate on tickets", "") },
196
197 { "use-referrals", 0, arg_flag, &use_referrals_flag,
198 NP_("only use referrals, no dns canalisation", "") },
199
200 { "windows", 0, arg_flag, &windows_flag,
201 NP_("get windows behavior", "") },
202
203 { "version", 0, arg_flag, &version_flag },
204 { "help", 0, arg_flag, &help_flag }
205};
206
207static void
208usage (int ret)
209{
210 arg_printusage_i18n (args,
211 sizeof(args)/sizeof(*args),
212 N_("Usage: ", ""),
213 NULL,
214 "[principal [command]]",
215 getarg_i18n);
216 exit (ret);
217}
218
219static krb5_error_code
220get_server(krb5_context context,
221 krb5_principal client,
222 const char *server,
223 krb5_principal *princ)
224{
225 krb5_const_realm realm;
226 if(server)
227 return krb5_parse_name(context, server, princ);
228
229 realm = krb5_principal_get_realm(context, client);
230 return krb5_make_principal(context, princ, realm,
231 KRB5_TGS_NAME, realm, NULL);
232}
233
234#ifndef HEIMDAL_SMALLER
235
236static krb5_error_code
237do_524init(krb5_context context, krb5_ccache ccache,
238 krb5_creds *creds, const char *server)
239{
240 krb5_error_code ret;
241
242 struct credentials c;
243 krb5_creds in_creds, *real_creds;
244
245 if(creds != NULL)
246 real_creds = creds;
247 else {
248 krb5_principal client;
249 krb5_cc_get_principal(context, ccache, &client);
250 memset(&in_creds, 0, sizeof(in_creds));
251 ret = get_server(context, client, server, &in_creds.server);
252 if(ret) {
253 krb5_free_principal(context, client);
254 return ret;
255 }
256 in_creds.client = client;
257 ret = krb5_get_credentials(context, 0, ccache, &in_creds, &real_creds);
258 krb5_free_principal(context, client);
259 krb5_free_principal(context, in_creds.server);
260 if(ret)
261 return ret;
262 }
263 ret = krb524_convert_creds_kdc_ccache(context, ccache, real_creds, &c);
264 if(ret)
265 krb5_warn(context, ret, "converting creds");
266 else {
267 krb5_error_code tret = _krb5_krb_tf_setup(context, &c, NULL, 0);
268 if(tret)
269 krb5_warn(context, tret, "saving v4 creds");
270 }
271
272 if(creds == NULL)
273 krb5_free_creds(context, real_creds);
274 memset(&c, 0, sizeof(c));
275
276 return ret;
277}
278
279#endif
280
281static int
282renew_validate(krb5_context context,
283 int renew,
284 int validate,
285 krb5_ccache cache,
286 const char *server,
287 krb5_deltat life)
288{
289 krb5_error_code ret;
290 krb5_creds in, *out = NULL;
291 krb5_kdc_flags flags;
292
293 memset(&in, 0, sizeof(in));
294
295 ret = krb5_cc_get_principal(context, cache, &in.client);
296 if(ret) {
297 krb5_warn(context, ret, "krb5_cc_get_principal");
298 return ret;
299 }
300 ret = get_server(context, in.client, server, &in.server);
301 if(ret) {
302 krb5_warn(context, ret, "get_server");
303 goto out;
304 }
305
306 if (renew) {
307 /*
308 * no need to check the error here, it's only to be
309 * friendly to the user
310 */
311 krb5_get_credentials(context, KRB5_GC_CACHED, cache, &in, &out);
312 }
313
314 flags.i = 0;
315 flags.b.renewable = flags.b.renew = renew;
316 flags.b.validate = validate;
317
318 if (forwardable_flag != -1)
319 flags.b.forwardable = forwardable_flag;
320 else if (out)
321 flags.b.forwardable = out->flags.b.forwardable;
322
323 if (proxiable_flag != -1)
324 flags.b.proxiable = proxiable_flag;
325 else if (out)
326 flags.b.proxiable = out->flags.b.proxiable;
327
328 if (anonymous_flag)
329 flags.b.request_anonymous = anonymous_flag;
330 if(life)
331 in.times.endtime = time(NULL) + life;
332
333 if (out) {
334 krb5_free_creds (context, out);
335 out = NULL;
336 }
337
338
339 ret = krb5_get_kdc_cred(context,
340 cache,
341 flags,
342 NULL,
343 NULL,
344 &in,
345 &out);
346 if(ret) {
347 krb5_warn(context, ret, "krb5_get_kdc_cred");
348 goto out;
349 }
350 ret = krb5_cc_initialize(context, cache, in.client);
351 if(ret) {
352 krb5_free_creds (context, out);
353 krb5_warn(context, ret, "krb5_cc_initialize");
354 goto out;
355 }
356 ret = krb5_cc_store_cred(context, cache, out);
357
358 if(ret == 0 && server == NULL) {
359 /* only do this if it's a general renew-my-tgt request */
360#ifndef HEIMDAL_SMALLER
361 if(get_v4_tgt)
362 do_524init(context, cache, out, NULL);
363#endif
364#ifndef NO_AFS
365 if(do_afslog && k_hasafs())
366 krb5_afslog(context, cache, NULL, NULL);
367#endif
368 }
369
370 krb5_free_creds (context, out);
371 if(ret) {
372 krb5_warn(context, ret, "krb5_cc_store_cred");
373 goto out;
374 }
375out:
376 krb5_free_cred_contents(context, &in);
377 return ret;
378}
379
380#ifndef NO_NTLM
381
382static krb5_error_code
383store_ntlmkey(krb5_context context, krb5_ccache id,
384 const char *domain, struct ntlm_buf *buf)
385{
386 krb5_error_code ret;
387 krb5_data data;
388 char *name;
389
390 asprintf(&name, "ntlm-key-%s", domain);
391 if (name == NULL) {
392 krb5_clear_error_message(context);
393 return ENOMEM;
394 }
395
396 data.length = buf->length;
397 data.data = buf->data;
398
399 ret = krb5_cc_set_config(context, id, NULL, name, &data);
400 free(name);
401 return ret;
402}
403#endif
404
405static krb5_error_code
406get_new_tickets(krb5_context context,
407 krb5_principal principal,
408 krb5_ccache ccache,
409 krb5_deltat ticket_life,
410 int interactive)
411{
412 krb5_error_code ret;
413 krb5_get_init_creds_opt *opt;
414 krb5_creds cred;
415 char passwd[256];
416 krb5_deltat start_time = 0;
417 krb5_deltat renew = 0;
418 char *renewstr = NULL;
419 krb5_enctype *enctype = NULL;
420 krb5_ccache tempccache;
421#ifndef NO_NTLM
422 struct ntlm_buf ntlmkey;
423 memset(&ntlmkey, 0, sizeof(ntlmkey));
424#endif
425 passwd[0] = '\0';
426
427 if (password_file) {
428 FILE *f;
429
430 if (strcasecmp("STDIN", password_file) == 0)
431 f = stdin;
432 else
433 f = fopen(password_file, "r");
434 if (f == NULL)
435 krb5_errx(context, 1, "Failed to open the password file %s",
436 password_file);
437
438 if (fgets(passwd, sizeof(passwd), f) == NULL)
439 krb5_errx(context, 1,
440 N_("Failed to read password from file %s", ""),
441 password_file);
442 if (f != stdin)
443 fclose(f);
444 passwd[strcspn(passwd, "\n")] = '\0';
445 }
446
447
448 memset(&cred, 0, sizeof(cred));
449
450 ret = krb5_get_init_creds_opt_alloc (context, &opt);
451 if (ret)
452 krb5_err(context, 1, ret, "krb5_get_init_creds_opt_alloc");
453
454 krb5_get_init_creds_opt_set_default_flags(context, "kinit",
455 krb5_principal_get_realm(context, principal), opt);
456
457 if(forwardable_flag != -1)
458 krb5_get_init_creds_opt_set_forwardable (opt, forwardable_flag);
459 if(proxiable_flag != -1)
460 krb5_get_init_creds_opt_set_proxiable (opt, proxiable_flag);
461 if(anonymous_flag)
462 krb5_get_init_creds_opt_set_anonymous (opt, anonymous_flag);
463 if (pac_flag != -1)
464 krb5_get_init_creds_opt_set_pac_request(context, opt,
465 pac_flag ? TRUE : FALSE);
466 if (canonicalize_flag)
467 krb5_get_init_creds_opt_set_canonicalize(context, opt, TRUE);
468 if (pk_enterprise_flag && windows_flag)
469 krb5_get_init_creds_opt_set_win2k(context, opt, TRUE);
470 if (pk_user_id || anonymous_flag) {
471 ret = krb5_get_init_creds_opt_set_pkinit(context, opt,
472 principal,
473 pk_user_id,
474 pk_x509_anchors,
475 NULL,
476 NULL,
477 pk_use_enckey ? 2 : 0 |
478 anonymous_flag ? 4 : 0,
479 krb5_prompter_posix,
480 NULL,
481 passwd);
482 if (ret)
483 krb5_err(context, 1, ret, "krb5_get_init_creds_opt_set_pkinit");
484 }
485
486 if (addrs_flag != -1)
487 krb5_get_init_creds_opt_set_addressless(context, opt,
488 addrs_flag ? FALSE : TRUE);
489
490 if (renew_life == NULL && renewable_flag)
491 renewstr = "1 month";
492 if (renew_life)
493 renewstr = renew_life;
494 if (renewstr) {
495 renew = parse_time (renewstr, "s");
496 if (renew < 0)
497 errx (1, "unparsable time: %s", renewstr);
498
499 krb5_get_init_creds_opt_set_renew_life (opt, renew);
500 }
501
502 if(ticket_life != 0)
503 krb5_get_init_creds_opt_set_tkt_life (opt, ticket_life);
504
505 if(start_str) {
506 int tmp = parse_time (start_str, "s");
507 if (tmp < 0)
508 errx (1, N_("unparsable time: %s", ""), start_str);
509
510 start_time = tmp;
511 }
512
513 if(etype_str.num_strings) {
514 int i;
515
516 enctype = malloc(etype_str.num_strings * sizeof(*enctype));
517 if(enctype == NULL)
518 errx(1, "out of memory");
519 for(i = 0; i < etype_str.num_strings; i++) {
520 ret = krb5_string_to_enctype(context,
521 etype_str.strings[i],
522 &enctype[i]);
523 if(ret)
524 errx(1, "unrecognized enctype: %s", etype_str.strings[i]);
525 }
526 krb5_get_init_creds_opt_set_etype_list(opt, enctype,
527 etype_str.num_strings);
528 }
529
530 if(use_keytab || keytab_str) {
531 krb5_keytab kt;
532 if(keytab_str)
533 ret = krb5_kt_resolve(context, keytab_str, &kt);
534 else
535 ret = krb5_kt_default(context, &kt);
536 if (ret)
537 krb5_err (context, 1, ret, "resolving keytab");
538 ret = krb5_get_init_creds_keytab (context,
539 &cred,
540 principal,
541 kt,
542 start_time,
543 server_str,
544 opt);
545 krb5_kt_close(context, kt);
546 } else if (pk_user_id || anonymous_flag) {
547 ret = krb5_get_init_creds_password (context,
548 &cred,
549 principal,
550 passwd,
551 krb5_prompter_posix,
552 NULL,
553 start_time,
554 server_str,
555 opt);
556 } else if (!interactive) {
557 krb5_warnx(context, "Not interactive, failed to get initial ticket");
558 krb5_get_init_creds_opt_free(context, opt);
559 return 0;
560 } else {
561
562 if (passwd[0] == '\0') {
563 char *p, *prompt;
564
565 krb5_unparse_name (context, principal, &p);
566 asprintf (&prompt, N_("%s's Password: ", ""), p);
567 free (p);
568
569 if (UI_UTIL_read_pw_string(passwd, sizeof(passwd)-1, prompt, 0)){
570 memset(passwd, 0, sizeof(passwd));
571 exit(1);
572 }
573 free (prompt);
574 }
575
576
577 ret = krb5_get_init_creds_password (context,
578 &cred,
579 principal,
580 passwd,
581 krb5_prompter_posix,
582 NULL,
583 start_time,
584 server_str,
585 opt);
586 }
587 krb5_get_init_creds_opt_free(context, opt);
588#ifndef NO_NTLM
589 if (ntlm_domain && passwd[0])
590 heim_ntlm_nt_key(passwd, &ntlmkey);
591#endif
592 memset(passwd, 0, sizeof(passwd));
593
594 switch(ret){
595 case 0:
596 break;
597 case KRB5_LIBOS_PWDINTR: /* don't print anything if it was just C-c:ed */
598 exit(1);
599 case KRB5KRB_AP_ERR_BAD_INTEGRITY:
600 case KRB5KRB_AP_ERR_MODIFIED:
601 case KRB5KDC_ERR_PREAUTH_FAILED:
602 krb5_errx(context, 1, N_("Password incorrect", ""));
603 break;
604 case KRB5KRB_AP_ERR_V4_REPLY:
605 krb5_errx(context, 1, N_("Looks like a Kerberos 4 reply", ""));
606 break;
607 default:
608 krb5_err(context, 1, ret, "krb5_get_init_creds");
609 }
610
611 if(ticket_life != 0) {
612 if(abs(cred.times.endtime - cred.times.starttime - ticket_life) > 30) {
613 char life[64];
614 unparse_time_approx(cred.times.endtime - cred.times.starttime,
615 life, sizeof(life));
616 krb5_warnx(context, N_("NOTICE: ticket lifetime is %s", ""), life);
617 }
618 }
619 if(renew_life) {
620 if(abs(cred.times.renew_till - cred.times.starttime - renew) > 30) {
621 char life[64];
622 unparse_time_approx(cred.times.renew_till - cred.times.starttime,
623 life, sizeof(life));
624 krb5_warnx(context,
625 N_("NOTICE: ticket renewable lifetime is %s", ""),
626 life);
627 }
628 }
629
630 ret = krb5_cc_new_unique(context, krb5_cc_get_type(context, ccache),
631 NULL, &tempccache);
632 if (ret)
633 krb5_err (context, 1, ret, "krb5_cc_new_unique");
634
635 ret = krb5_cc_initialize (context, tempccache, cred.client);
636 if (ret)
637 krb5_err (context, 1, ret, "krb5_cc_initialize");
638
639 ret = krb5_cc_store_cred (context, tempccache, &cred);
640 if (ret)
641 krb5_err (context, 1, ret, "krb5_cc_store_cred");
642
643 krb5_free_cred_contents (context, &cred);
644
645 ret = krb5_cc_move(context, tempccache, ccache);
646 if (ret)
647 krb5_err (context, 1, ret, "krb5_cc_move");
648
649 if (switch_cache_flags)
650 krb5_cc_switch(context, ccache);
651
652#ifndef NO_NTLM
653 if (ntlm_domain && ntlmkey.data)
654 store_ntlmkey(context, ccache, ntlm_domain, &ntlmkey);
655#endif
656
657 if (ok_as_delegate_flag || windows_flag || use_referrals_flag) {
658 unsigned char d = 0;
659 krb5_data data;
660
661 if (ok_as_delegate_flag || windows_flag)
662 d |= 1;
663 if (use_referrals_flag || windows_flag)
664 d |= 2;
665
666 data.length = 1;
667 data.data = &d;
668
669 krb5_cc_set_config(context, ccache, NULL, "realm-config", &data);
670 }
671
672
673 if (enctype)
674 free(enctype);
675
676 return 0;
677}
678
679static time_t
680ticket_lifetime(krb5_context context, krb5_ccache cache,
681 krb5_principal client, const char *server)
682{
683 krb5_creds in_cred, *cred;
684 krb5_error_code ret;
685 time_t timeout;
686
687 memset(&in_cred, 0, sizeof(in_cred));
688
689 ret = krb5_cc_get_principal(context, cache, &in_cred.client);
690 if(ret) {
691 krb5_warn(context, ret, "krb5_cc_get_principal");
692 return 0;
693 }
694 ret = get_server(context, in_cred.client, server, &in_cred.server);
695 if(ret) {
696 krb5_free_principal(context, in_cred.client);
697 krb5_warn(context, ret, "get_server");
698 return 0;
699 }
700
701 ret = krb5_get_credentials(context, KRB5_GC_CACHED,
702 cache, &in_cred, &cred);
703 krb5_free_principal(context, in_cred.client);
704 krb5_free_principal(context, in_cred.server);
705 if(ret) {
706 krb5_warn(context, ret, "krb5_get_credentials");
707 return 0;
708 }
709 timeout = cred->times.endtime - cred->times.starttime;
710 if (timeout < 0)
711 timeout = 0;
712 krb5_free_creds(context, cred);
713 return timeout;
714}
715
716struct renew_ctx {
717 krb5_context context;
718 krb5_ccache ccache;
719 krb5_principal principal;
720 krb5_deltat ticket_life;
721};
722
723static time_t
724renew_func(void *ptr)
725{
726 struct renew_ctx *ctx = ptr;
727 krb5_error_code ret;
728 time_t expire;
729 int new_tickets = 0;
730
731 if (renewable_flag) {
732 ret = renew_validate(ctx->context, renewable_flag, validate_flag,
733 ctx->ccache, server_str, ctx->ticket_life);
734 if (ret)
735 new_tickets = 1;
736 } else
737 new_tickets = 1;
738
739 if (new_tickets)
740 get_new_tickets(ctx->context, ctx->principal,
741 ctx->ccache, ctx->ticket_life, 0);
742
743#ifndef HEIMDAL_SMALLER
744 if(get_v4_tgt || convert_524)
745 do_524init(ctx->context, ctx->ccache, NULL, server_str);
746#endif
747#ifndef NO_AFS
748 if(do_afslog && k_hasafs())
749 krb5_afslog(ctx->context, ctx->ccache, NULL, NULL);
750#endif
751
752 expire = ticket_lifetime(ctx->context, ctx->ccache, ctx->principal,
753 server_str) / 2;
754 return expire + 1;
755}
756
757int
758main (int argc, char **argv)
759{
760 krb5_error_code ret;
761 krb5_context context;
762 krb5_ccache ccache;
763 krb5_principal principal;
764 int optidx = 0;
765 krb5_deltat ticket_life = 0;
766 int parseflags = 0;
767
768 setprogname (argv[0]);
769
770 setlocale (LC_ALL, "");
771 bindtextdomain ("heimdal_kuser", HEIMDAL_LOCALEDIR);
772 textdomain("heimdal_kuser");
773
774 ret = krb5_init_context (&context);
775 if (ret == KRB5_CONFIG_BADFORMAT)
776 errx (1, "krb5_init_context failed to parse configuration file");
777 else if (ret)
778 errx(1, "krb5_init_context failed: %d", ret);
779
780 if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
781 usage(1);
782
783 if (help_flag)
784 usage (0);
785
786 if(version_flag) {
787 print_version(NULL);
788 exit(0);
789 }
790
791 argc -= optidx;
792 argv += optidx;
793
794 if (canonicalize_flag || enterprise_flag)
795 parseflags |= KRB5_PRINCIPAL_PARSE_ENTERPRISE;
796
797 if (pk_enterprise_flag) {
798 ret = _krb5_pk_enterprise_cert(context, pk_user_id,
799 argv[0], &principal);
800 if (ret)
801 krb5_err(context, 1, ret, "krb5_pk_enterprise_certs");
802
803 } else if (anonymous_flag) {
804
805 ret = krb5_make_principal(context, &principal, argv[0],
806 KRB5_WELLKNOWN_NAME, KRB5_ANON_NAME,
807 NULL);
808 if (ret)
809 krb5_err(context, 1, ret, "krb5_build_principal");
810 krb5_principal_set_type(context, principal, KRB5_NT_WELLKNOWN);
811
812 } else {
813 if (argv[0]) {
814 ret = krb5_parse_name_flags (context, argv[0], parseflags,
815 &principal);
816 if (ret)
817 krb5_err (context, 1, ret, "krb5_parse_name");
818 } else {
819 ret = krb5_get_default_principal (context, &principal);
820 if (ret)
821 krb5_err (context, 1, ret, "krb5_get_default_principal");
822 }
823 }
824
825 if(fcache_version)
826 krb5_set_fcache_version(context, fcache_version);
827
828 if(renewable_flag == -1)
829 /* this seems somewhat pointless, but whatever */
830 krb5_appdefault_boolean(context, "kinit",
831 krb5_principal_get_realm(context, principal),
832 "renewable", FALSE, &renewable_flag);
833#ifndef HEIMDAL_SMALLER
834 if(get_v4_tgt == -1)
835 krb5_appdefault_boolean(context, "kinit",
836 krb5_principal_get_realm(context, principal),
837 "krb4_get_tickets", FALSE, &get_v4_tgt);
838#endif
839 if(do_afslog == -1)
840 krb5_appdefault_boolean(context, "kinit",
841 krb5_principal_get_realm(context, principal),
842 "afslog", TRUE, &do_afslog);
843
844 if(cred_cache)
845 ret = krb5_cc_resolve(context, cred_cache, &ccache);
846 else {
847 if(argc > 1) {
848 char s[1024];
849 ret = krb5_cc_new_unique(context, NULL, NULL, &ccache);
850 if(ret)
851 krb5_err(context, 1, ret, "creating cred cache");
852 snprintf(s, sizeof(s), "%s:%s",
853 krb5_cc_get_type(context, ccache),
854 krb5_cc_get_name(context, ccache));
855 setenv("KRB5CCNAME", s, 1);
856#ifndef HEIMDAL_SMALLER
857 if (get_v4_tgt) {
858 int fd;
859 if (asprintf(&krb4_cc_name, "%s_XXXXXX", TKT_ROOT) < 0)
860 krb5_errx(context, 1, "out of memory");
861 if((fd = mkstemp(krb4_cc_name)) >= 0) {
862 close(fd);
863 setenv("KRBTKFILE", krb4_cc_name, 1);
864 } else {
865 free(krb4_cc_name);
866 krb4_cc_name = NULL;
867 }
868 }
869#endif
870 } else {
871 ret = krb5_cc_cache_match(context, principal, &ccache);
872 if (ret)
873 ret = krb5_cc_default (context, &ccache);
874 }
875 }
876 if (ret)
877 krb5_err (context, 1, ret, N_("resolving credentials cache", ""));
878
879#ifndef NO_AFS
880 if(argc > 1 && k_hasafs ())
881 k_setpag();
882#endif
883
884 if (lifetime) {
885 int tmp = parse_time (lifetime, "s");
886 if (tmp < 0)
887 errx (1, N_("unparsable time: %s", ""), lifetime);
888
889 ticket_life = tmp;
890 }
891
892 if(addrs_flag == 0 && extra_addresses.num_strings > 0)
893 krb5_errx(context, 1,
894 N_("specifying both extra addresses and "
895 "no addresses makes no sense", ""));
896 {
897 int i;
898 krb5_addresses addresses;
899 memset(&addresses, 0, sizeof(addresses));
900 for(i = 0; i < extra_addresses.num_strings; i++) {
901 ret = krb5_parse_address(context, extra_addresses.strings[i],
902 &addresses);
903 if (ret == 0) {
904 krb5_add_extra_addresses(context, &addresses);
905 krb5_free_addresses(context, &addresses);
906 }
907 }
908 free_getarg_strings(&extra_addresses);
909 }
910
911 if(renew_flag || validate_flag) {
912 ret = renew_validate(context, renew_flag, validate_flag,
913 ccache, server_str, ticket_life);
914 exit(ret != 0);
915 }
916
917#ifndef HEIMDAL_SMALLER
918 if(!convert_524)
919#endif
920 get_new_tickets(context, principal, ccache, ticket_life, 1);
921
922#ifndef HEIMDAL_SMALLER
923 if(get_v4_tgt || convert_524)
924 do_524init(context, ccache, NULL, server_str);
925#endif
926#ifndef NO_AFS
927 if(do_afslog && k_hasafs())
928 krb5_afslog(context, ccache, NULL, NULL);
929#endif
930 if(argc > 1) {
931 struct renew_ctx ctx;
932 time_t timeout;
933
934 timeout = ticket_lifetime(context, ccache, principal, server_str) / 2;
935
936 ctx.context = context;
937 ctx.ccache = ccache;
938 ctx.principal = principal;
939 ctx.ticket_life = ticket_life;
940
941 ret = simple_execvp_timed(argv[1], argv+1,
942 renew_func, &ctx, timeout);
943#define EX_NOEXEC 126
944#define EX_NOTFOUND 127
945 if(ret == EX_NOEXEC)
946 krb5_warnx(context, N_("permission denied: %s", ""), argv[1]);
947 else if(ret == EX_NOTFOUND)
948 krb5_warnx(context, N_("command not found: %s", ""), argv[1]);
949
950 krb5_cc_destroy(context, ccache);
951#ifndef HEIMDAL_SMALLER
952 _krb5_krb_dest_tkt(context, krb4_cc_name);
953#endif
954#ifndef NO_AFS
955 if(k_hasafs())
956 k_unlog();
957#endif
958 } else {
959 krb5_cc_close (context, ccache);
960 ret = 0;
961 }
962 krb5_free_principal(context, principal);
963 krb5_free_context (context);
964 return ret;
965}
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