root/source4/heimdal/kuser/kinit.c

/* [<][>][^][v][top][bottom][index][help] */

DEFINITIONS

This source file includes following definitions.
  1. usage
  2. get_server
  3. do_524init
  4. renew_validate
  5. store_ntlmkey
  6. get_new_tickets
  7. ticket_lifetime
  8. renew_func
  9. main

   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 RCSID("$Id$");
  36 
  37 #include "krb5-v4compat.h"
  38 
  39 #include "heimntlm.h"
  40 
  41 int forwardable_flag    = -1;
  42 int proxiable_flag      = -1;
  43 int renewable_flag      = -1;
  44 int renew_flag          = 0;
  45 int pac_flag            = -1;
  46 int validate_flag       = 0;
  47 int version_flag        = 0;
  48 int help_flag           = 0;
  49 int addrs_flag          = -1;
  50 struct getarg_strings extra_addresses;
  51 int anonymous_flag      = 0;
  52 char *lifetime          = NULL;
  53 char *renew_life        = NULL;
  54 char *server_str        = NULL;
  55 char *cred_cache        = NULL;
  56 char *start_str         = NULL;
  57 struct getarg_strings etype_str;
  58 int use_keytab          = 0;
  59 char *keytab_str        = NULL;
  60 int do_afslog           = -1;
  61 #ifndef HEIMDAL_SMALLER
  62 int get_v4_tgt          = -1;
  63 int convert_524         = 0;
  64 static char *krb4_cc_name;
  65 #endif
  66 int fcache_version;
  67 char *password_file     = NULL;
  68 char *pk_user_id        = NULL;
  69 char *pk_x509_anchors   = NULL;
  70 int pk_use_enckey       = 0;
  71 static int canonicalize_flag = 0;
  72 static int ok_as_delegate_flag = 0;
  73 static int use_referrals_flag = 0;
  74 static int windows_flag = 0;
  75 static char *ntlm_domain;
  76 
  77 
  78 static struct getargs args[] = {
  79     /*
  80      * used by MIT
  81      * a: ~A
  82      * V: verbose
  83      * F: ~f
  84      * P: ~p
  85      * C: v4 cache name?
  86      * 5:
  87      */
  88 #ifndef HEIMDAL_SMALLER
  89     { "524init",        '4', arg_flag, &get_v4_tgt,
  90       NP_("obtain version 4 TGT", "") },
  91 
  92     { "524convert",     '9', arg_flag, &convert_524,
  93       NP_("only convert ticket to version 4", "") },
  94 #endif
  95     { "afslog",         0  , arg_flag, &do_afslog,
  96       NP_("obtain afs tokens", "")  },
  97 
  98     { "cache",          'c', arg_string, &cred_cache,
  99       NP_("credentials cache", ""), "cachename" },
 100 
 101     { "forwardable",    'f', arg_flag, &forwardable_flag,
 102       NP_("get forwardable tickets", "")},
 103 
 104     { "keytab",         't', arg_string, &keytab_str,
 105       NP_("keytab to use", ""), "keytabname" },
 106 
 107     { "lifetime",       'l', arg_string, &lifetime,
 108       NP_("lifetime of tickets", ""), "time"},
 109 
 110     { "proxiable",      'p', arg_flag, &proxiable_flag,
 111       NP_("get proxiable tickets", "") },
 112 
 113     { "renew",          'R', arg_flag, &renew_flag,
 114       NP_("renew TGT", "") },
 115 
 116     { "renewable",      0,   arg_flag, &renewable_flag,
 117       NP_("get renewable tickets", "") },
 118 
 119     { "renewable-life", 'r', arg_string, &renew_life,
 120       NP_("renewable lifetime of tickets", ""), "time" },
 121 
 122     { "server",         'S', arg_string, &server_str,
 123       NP_("server to get ticket for", ""), "principal" },
 124 
 125     { "start-time",     's', arg_string, &start_str,
 126       NP_("when ticket gets valid", ""), "time" },
 127 
 128     { "use-keytab",     'k', arg_flag, &use_keytab,
 129       NP_("get key from keytab", "") },
 130 
 131     { "validate",       'v', arg_flag, &validate_flag,
 132       NP_("validate TGT", "") },
 133 
 134     { "enctypes",       'e', arg_strings, &etype_str,
 135       NP_("encryption types to use", ""), "enctypes" },
 136 
 137     { "fcache-version", 0,   arg_integer, &fcache_version,
 138       NP_("file cache version to create", "") },
 139 
 140     { "addresses",      'A',   arg_negative_flag,       &addrs_flag,
 141       NP_("request a ticket with no addresses", "") },
 142 
 143     { "extra-addresses",'a', arg_strings,       &extra_addresses,
 144       NP_("include these extra addresses", ""), "addresses" },
 145 
 146     { "anonymous",      0,   arg_flag,  &anonymous_flag,
 147       NP_("request an anonymous ticket", "") },
 148 
 149     { "request-pac",    0,   arg_flag,  &pac_flag,
 150       NP_("request a Windows PAC", "") },
 151 
 152     { "password-file",  0,   arg_string, &password_file,
 153       NP_("read the password from a file", "") },
 154 
 155     { "canonicalize",0,   arg_flag, &canonicalize_flag,
 156       NP_("canonicalize client principal", "") },
 157 #ifdef PKINIT
 158     { "pk-user",        'C',    arg_string,     &pk_user_id,
 159       NP_("principal's public/private/certificate identifier", ""), "id" },
 160 
 161     { "x509-anchors",   'D',  arg_string, &pk_x509_anchors,
 162       NP_("directory with CA certificates", ""), "directory" },
 163 
 164     { "pk-use-enckey",  0,  arg_flag, &pk_use_enckey,
 165       NP_("Use RSA encrypted reply (instead of DH)", "") },
 166 #endif
 167     { "ntlm-domain",    0,  arg_string, &ntlm_domain,
 168       NP_("NTLM domain", ""), "domain" },
 169 
 170     { "ok-as-delegate", 0,  arg_flag, &ok_as_delegate_flag,
 171       NP_("honor ok-as-delegate on tickets", "") },
 172 
 173     { "use-referrals",  0,  arg_flag, &use_referrals_flag,
 174       NP_("only use referrals, no dns canalisation", "") },
 175 
 176     { "windows",        0,  arg_flag, &windows_flag,
 177       NP_("get windows behavior", "") },
 178 
 179     { "version",        0,   arg_flag, &version_flag },
 180     { "help",           0,   arg_flag, &help_flag }
 181 };
 182 
 183 static void
 184 usage (int ret)
     /* [<][>][^][v][top][bottom][index][help] */
 185 {
 186     arg_printusage_i18n (args,
 187                          sizeof(args)/sizeof(*args),
 188                          N_("Usage: ", ""),
 189                          NULL,
 190                          "[principal [command]]",
 191                          getarg_i18n);
 192     exit (ret);
 193 }
 194 
 195 static krb5_error_code
 196 get_server(krb5_context context,
     /* [<][>][^][v][top][bottom][index][help] */
 197            krb5_principal client,
 198            const char *server,
 199            krb5_principal *princ)
 200 {
 201     krb5_realm *client_realm;
 202     if(server)
 203         return krb5_parse_name(context, server, princ);
 204 
 205     client_realm = krb5_princ_realm (context, client);
 206     return krb5_make_principal(context, princ, *client_realm,
 207                                KRB5_TGS_NAME, *client_realm, NULL);
 208 }
 209 
 210 #ifndef HEIMDAL_SMALLER
 211 
 212 static krb5_error_code
 213 do_524init(krb5_context context, krb5_ccache ccache,
     /* [<][>][^][v][top][bottom][index][help] */
 214            krb5_creds *creds, const char *server)
 215 {
 216     krb5_error_code ret;
 217 
 218     struct credentials c;
 219     krb5_creds in_creds, *real_creds;
 220 
 221     if(creds != NULL)
 222         real_creds = creds;
 223     else {
 224         krb5_principal client;
 225         krb5_cc_get_principal(context, ccache, &client);
 226         memset(&in_creds, 0, sizeof(in_creds));
 227         ret = get_server(context, client, server, &in_creds.server);
 228         if(ret) {
 229             krb5_free_principal(context, client);
 230             return ret;
 231         }
 232         in_creds.client = client;
 233         ret = krb5_get_credentials(context, 0, ccache, &in_creds, &real_creds);
 234         krb5_free_principal(context, client);
 235         krb5_free_principal(context, in_creds.server);
 236         if(ret)
 237             return ret;
 238     }
 239     ret = krb524_convert_creds_kdc_ccache(context, ccache, real_creds, &c);
 240     if(ret)
 241         krb5_warn(context, ret, "converting creds");
 242     else {
 243         krb5_error_code tret = _krb5_krb_tf_setup(context, &c, NULL, 0);
 244         if(tret)
 245             krb5_warn(context, tret, "saving v4 creds");
 246     }
 247 
 248     if(creds == NULL)
 249         krb5_free_creds(context, real_creds);
 250     memset(&c, 0, sizeof(c));
 251 
 252     return ret;
 253 }
 254 
 255 #endif
 256 
 257 static int
 258 renew_validate(krb5_context context,
     /* [<][>][^][v][top][bottom][index][help] */
 259                int renew,
 260                int validate,
 261                krb5_ccache cache,
 262                const char *server,
 263                krb5_deltat life)
 264 {
 265     krb5_error_code ret;
 266     krb5_creds in, *out = NULL;
 267     krb5_kdc_flags flags;
 268 
 269     memset(&in, 0, sizeof(in));
 270 
 271     ret = krb5_cc_get_principal(context, cache, &in.client);
 272     if(ret) {
 273         krb5_warn(context, ret, "krb5_cc_get_principal");
 274         return ret;
 275     }
 276     ret = get_server(context, in.client, server, &in.server);
 277     if(ret) {
 278         krb5_warn(context, ret, "get_server");
 279         goto out;
 280     }
 281 
 282     if (renew) {
 283         /*
 284          * no need to check the error here, it's only to be
 285          * friendly to the user
 286          */
 287         krb5_get_credentials(context, KRB5_GC_CACHED, cache, &in, &out);
 288     }
 289 
 290     flags.i = 0;
 291     flags.b.renewable         = flags.b.renew = renew;
 292     flags.b.validate          = validate;
 293 
 294     if (forwardable_flag != -1)
 295         flags.b.forwardable       = forwardable_flag;
 296     else if (out)
 297         flags.b.forwardable       = out->flags.b.forwardable;
 298 
 299     if (proxiable_flag != -1)
 300         flags.b.proxiable         = proxiable_flag;
 301     else if (out)
 302         flags.b.proxiable         = out->flags.b.proxiable;
 303 
 304     if (anonymous_flag != -1)
 305         flags.b.request_anonymous = anonymous_flag;
 306     if(life)
 307         in.times.endtime = time(NULL) + life;
 308 
 309     if (out) {
 310         krb5_free_creds (context, out);
 311         out = NULL;
 312     }
 313 
 314 
 315     ret = krb5_get_kdc_cred(context,
 316                             cache,
 317                             flags,
 318                             NULL,
 319                             NULL,
 320                             &in,
 321                             &out);
 322     if(ret) {
 323         krb5_warn(context, ret, "krb5_get_kdc_cred");
 324         goto out;
 325     }
 326     ret = krb5_cc_initialize(context, cache, in.client);
 327     if(ret) {
 328         krb5_free_creds (context, out);
 329         krb5_warn(context, ret, "krb5_cc_initialize");
 330         goto out;
 331     }
 332     ret = krb5_cc_store_cred(context, cache, out);
 333 
 334     if(ret == 0 && server == NULL) {
 335         /* only do this if it's a general renew-my-tgt request */
 336 #ifndef HEIMDAL_SMALLER
 337         if(get_v4_tgt)
 338             do_524init(context, cache, out, NULL);
 339 #endif
 340         if(do_afslog && k_hasafs())
 341             krb5_afslog(context, cache, NULL, NULL);
 342     }
 343 
 344     krb5_free_creds (context, out);
 345     if(ret) {
 346         krb5_warn(context, ret, "krb5_cc_store_cred");
 347         goto out;
 348     }
 349 out:
 350     krb5_free_cred_contents(context, &in);
 351     return ret;
 352 }
 353 
 354 static krb5_error_code
 355 store_ntlmkey(krb5_context context, krb5_ccache id,
     /* [<][>][^][v][top][bottom][index][help] */
 356               const char *domain, struct ntlm_buf *buf)
 357 {
 358     krb5_error_code ret;
 359     krb5_data data;
 360     char *name;
 361 
 362     asprintf(&name, "ntlm-key-%s", domain);
 363     if (name == NULL) {
 364         krb5_clear_error_message(context);
 365         return ENOMEM;
 366     }
 367 
 368     data.length = buf->length;
 369     data.data = buf->data;
 370 
 371     ret = krb5_cc_set_config(context, id, NULL, name, &data);
 372     free(name);
 373     return ret;
 374 }
 375 
 376 static krb5_error_code
 377 get_new_tickets(krb5_context context,
     /* [<][>][^][v][top][bottom][index][help] */
 378                 krb5_principal principal,
 379                 krb5_ccache ccache,
 380                 krb5_deltat ticket_life,
 381                 int interactive)
 382 {
 383     krb5_error_code ret;
 384     krb5_get_init_creds_opt *opt;
 385     krb5_creds cred;
 386     char passwd[256];
 387     krb5_deltat start_time = 0;
 388     krb5_deltat renew = 0;
 389     char *renewstr = NULL;
 390     krb5_enctype *enctype = NULL;
 391     struct ntlm_buf ntlmkey;
 392     krb5_ccache tempccache;
 393 
 394     memset(&ntlmkey, 0, sizeof(ntlmkey));
 395     passwd[0] = '\0';
 396 
 397     if (password_file) {
 398         FILE *f;
 399 
 400         if (strcasecmp("STDIN", password_file) == 0)
 401             f = stdin;
 402         else
 403             f = fopen(password_file, "r");
 404         if (f == NULL)
 405             krb5_errx(context, 1, "Failed to open the password file %s",
 406                       password_file);
 407 
 408         if (fgets(passwd, sizeof(passwd), f) == NULL)
 409             krb5_errx(context, 1,
 410                       N_("Failed to read password from file %s", ""),
 411                       password_file);
 412         if (f != stdin)
 413             fclose(f);
 414         passwd[strcspn(passwd, "\n")] = '\0';
 415     }
 416 
 417 
 418     memset(&cred, 0, sizeof(cred));
 419 
 420     ret = krb5_get_init_creds_opt_alloc (context, &opt);
 421     if (ret)
 422         krb5_err(context, 1, ret, "krb5_get_init_creds_opt_alloc");
 423 
 424     krb5_get_init_creds_opt_set_default_flags(context, "kinit",
 425         krb5_principal_get_realm(context, principal), opt);
 426 
 427     if(forwardable_flag != -1)
 428         krb5_get_init_creds_opt_set_forwardable (opt, forwardable_flag);
 429     if(proxiable_flag != -1)
 430         krb5_get_init_creds_opt_set_proxiable (opt, proxiable_flag);
 431     if(anonymous_flag != -1)
 432         krb5_get_init_creds_opt_set_anonymous (opt, anonymous_flag);
 433     if (pac_flag != -1)
 434         krb5_get_init_creds_opt_set_pac_request(context, opt,
 435                                                 pac_flag ? TRUE : FALSE);
 436     if (canonicalize_flag)
 437         krb5_get_init_creds_opt_set_canonicalize(context, opt, TRUE);
 438     if (pk_user_id) {
 439         ret = krb5_get_init_creds_opt_set_pkinit(context, opt,
 440                                                  principal,
 441                                                  pk_user_id,
 442                                                  pk_x509_anchors,
 443                                                  NULL,
 444                                                  NULL,
 445                                                  pk_use_enckey ? 2 : 0,
 446                                                  krb5_prompter_posix,
 447                                                  NULL,
 448                                                  passwd);
 449         if (ret)
 450             krb5_err(context, 1, ret, "krb5_get_init_creds_opt_set_pkinit");
 451     }
 452 
 453     if (addrs_flag != -1)
 454         krb5_get_init_creds_opt_set_addressless(context, opt,
 455                                                 addrs_flag ? FALSE : TRUE);
 456 
 457     if (renew_life == NULL && renewable_flag)
 458         renewstr = "1 month";
 459     if (renew_life)
 460         renewstr = renew_life;
 461     if (renewstr) {
 462         renew = parse_time (renewstr, "s");
 463         if (renew < 0)
 464             errx (1, "unparsable time: %s", renewstr);
 465         
 466         krb5_get_init_creds_opt_set_renew_life (opt, renew);
 467     }
 468 
 469     if(ticket_life != 0)
 470         krb5_get_init_creds_opt_set_tkt_life (opt, ticket_life);
 471 
 472     if(start_str) {
 473         int tmp = parse_time (start_str, "s");
 474         if (tmp < 0)
 475             errx (1, N_("unparsable time: %s", ""), start_str);
 476 
 477         start_time = tmp;
 478     }
 479 
 480     if(etype_str.num_strings) {
 481         int i;
 482 
 483         enctype = malloc(etype_str.num_strings * sizeof(*enctype));
 484         if(enctype == NULL)
 485             errx(1, "out of memory");
 486         for(i = 0; i < etype_str.num_strings; i++) {
 487             ret = krb5_string_to_enctype(context,
 488                                          etype_str.strings[i],
 489                                          &enctype[i]);
 490             if(ret)
 491                 errx(1, "unrecognized enctype: %s", etype_str.strings[i]);
 492         }
 493         krb5_get_init_creds_opt_set_etype_list(opt, enctype,
 494                                                etype_str.num_strings);
 495     }
 496 
 497     if(use_keytab || keytab_str) {
 498         krb5_keytab kt;
 499         if(keytab_str)
 500             ret = krb5_kt_resolve(context, keytab_str, &kt);
 501         else
 502             ret = krb5_kt_default(context, &kt);
 503         if (ret)
 504             krb5_err (context, 1, ret, "resolving keytab");
 505         ret = krb5_get_init_creds_keytab (context,
 506                                           &cred,
 507                                           principal,
 508                                           kt,
 509                                           start_time,
 510                                           server_str,
 511                                           opt);
 512         krb5_kt_close(context, kt);
 513     } else if (pk_user_id) {
 514         ret = krb5_get_init_creds_password (context,
 515                                             &cred,
 516                                             principal,
 517                                             passwd,
 518                                             krb5_prompter_posix,
 519                                             NULL,
 520                                             start_time,
 521                                             server_str,
 522                                             opt);
 523     } else if (!interactive) {
 524         krb5_warnx(context, "Not interactive, failed to get initial ticket");
 525         krb5_get_init_creds_opt_free(context, opt);
 526         return 0;
 527     } else {
 528 
 529         if (passwd[0] == '\0') {
 530             char *p, *prompt;
 531         
 532             krb5_unparse_name (context, principal, &p);
 533             asprintf (&prompt, N_("%s's Password: ", ""), p);
 534             free (p);
 535         
 536             if (UI_UTIL_read_pw_string(passwd, sizeof(passwd)-1, prompt, 0)){
 537                 memset(passwd, 0, sizeof(passwd));
 538                 exit(1);
 539             }
 540             free (prompt);
 541         }
 542 
 543         
 544         ret = krb5_get_init_creds_password (context,
 545                                             &cred,
 546                                             principal,
 547                                             passwd,
 548                                             krb5_prompter_posix,
 549                                             NULL,
 550                                             start_time,
 551                                             server_str,
 552                                             opt);
 553     }
 554     krb5_get_init_creds_opt_free(context, opt);
 555     if (ntlm_domain && passwd[0])
 556         heim_ntlm_nt_key(passwd, &ntlmkey);
 557     memset(passwd, 0, sizeof(passwd));
 558 
 559     switch(ret){
 560     case 0:
 561         break;
 562     case KRB5_LIBOS_PWDINTR: /* don't print anything if it was just C-c:ed */
 563         exit(1);
 564     case KRB5KRB_AP_ERR_BAD_INTEGRITY:
 565     case KRB5KRB_AP_ERR_MODIFIED:
 566     case KRB5KDC_ERR_PREAUTH_FAILED:
 567         krb5_errx(context, 1, N_("Password incorrect", ""));
 568         break;
 569     case KRB5KRB_AP_ERR_V4_REPLY:
 570         krb5_errx(context, 1, N_("Looks like a Kerberos 4 reply", ""));
 571         break;
 572     default:
 573         krb5_err(context, 1, ret, "krb5_get_init_creds");
 574     }
 575 
 576     if(ticket_life != 0) {
 577         if(abs(cred.times.endtime - cred.times.starttime - ticket_life) > 30) {
 578             char life[64];
 579             unparse_time_approx(cred.times.endtime - cred.times.starttime,
 580                                 life, sizeof(life));
 581             krb5_warnx(context, N_("NOTICE: ticket lifetime is %s", ""), life);
 582         }
 583     }
 584     if(renew_life) {
 585         if(abs(cred.times.renew_till - cred.times.starttime - renew) > 30) {
 586             char life[64];
 587             unparse_time_approx(cred.times.renew_till - cred.times.starttime,
 588                                 life, sizeof(life));
 589             krb5_warnx(context, 
 590                        N_("NOTICE: ticket renewable lifetime is %s", ""),
 591                        life);
 592         }
 593     }
 594 
 595     ret = krb5_cc_new_unique(context, krb5_cc_get_type(context, ccache),
 596                              NULL, &tempccache);
 597     if (ret)
 598         krb5_err (context, 1, ret, "krb5_cc_new_unique");
 599 
 600     ret = krb5_cc_initialize (context, tempccache, cred.client);
 601     if (ret)
 602         krb5_err (context, 1, ret, "krb5_cc_initialize");
 603 
 604     ret = krb5_cc_store_cred (context, tempccache, &cred);
 605     if (ret)
 606         krb5_err (context, 1, ret, "krb5_cc_store_cred");
 607 
 608     krb5_free_cred_contents (context, &cred);
 609 
 610     ret = krb5_cc_move(context, tempccache, ccache);
 611     if (ret)
 612         krb5_err (context, 1, ret, "krb5_cc_move");
 613 
 614     if (ntlm_domain && ntlmkey.data)
 615         store_ntlmkey(context, ccache, ntlm_domain, &ntlmkey);
 616 
 617     if (ok_as_delegate_flag || windows_flag || use_referrals_flag) {
 618         unsigned char d = 0;
 619         krb5_data data;
 620 
 621         if (ok_as_delegate_flag || windows_flag)
 622             d |= 1;
 623         if (use_referrals_flag || windows_flag)
 624             d |= 2;
 625 
 626         data.length = 1;
 627         data.data = &d;
 628 
 629         krb5_cc_set_config(context, ccache, NULL, "realm-config", &data);
 630     }
 631 
 632 
 633     if (enctype)
 634         free(enctype);
 635 
 636     return 0;
 637 }
 638 
 639 static time_t
 640 ticket_lifetime(krb5_context context, krb5_ccache cache,
     /* [<][>][^][v][top][bottom][index][help] */
 641                 krb5_principal client, const char *server)
 642 {
 643     krb5_creds in_cred, *cred;
 644     krb5_error_code ret;
 645     time_t timeout;
 646 
 647     memset(&in_cred, 0, sizeof(in_cred));
 648 
 649     ret = krb5_cc_get_principal(context, cache, &in_cred.client);
 650     if(ret) {
 651         krb5_warn(context, ret, "krb5_cc_get_principal");
 652         return 0;
 653     }
 654     ret = get_server(context, in_cred.client, server, &in_cred.server);
 655     if(ret) {
 656         krb5_free_principal(context, in_cred.client);
 657         krb5_warn(context, ret, "get_server");
 658         return 0;
 659     }
 660 
 661     ret = krb5_get_credentials(context, KRB5_GC_CACHED,
 662                                cache, &in_cred, &cred);
 663     krb5_free_principal(context, in_cred.client);
 664     krb5_free_principal(context, in_cred.server);
 665     if(ret) {
 666         krb5_warn(context, ret, "krb5_get_credentials");
 667         return 0;
 668     }
 669     timeout = cred->times.endtime - cred->times.starttime;
 670     if (timeout < 0)
 671         timeout = 0;
 672     krb5_free_creds(context, cred);
 673     return timeout;
 674 }
 675 
 676 struct renew_ctx {
 677     krb5_context context;
 678     krb5_ccache  ccache;
 679     krb5_principal principal;
 680     krb5_deltat ticket_life;
 681 };
 682 
 683 static time_t
 684 renew_func(void *ptr)
     /* [<][>][^][v][top][bottom][index][help] */
 685 {
 686     struct renew_ctx *ctx = ptr;
 687     krb5_error_code ret;
 688     time_t expire;
 689     int new_tickets = 0;
 690 
 691     if (renewable_flag) {
 692         ret = renew_validate(ctx->context, renewable_flag, validate_flag,
 693                              ctx->ccache, server_str, ctx->ticket_life);
 694         if (ret)
 695             new_tickets = 1;
 696     } else
 697         new_tickets = 1;
 698 
 699     if (new_tickets)
 700         get_new_tickets(ctx->context, ctx->principal,
 701                         ctx->ccache, ctx->ticket_life, 0);
 702 
 703 #ifndef HEIMDAL_SMALLER
 704     if(get_v4_tgt || convert_524)
 705         do_524init(ctx->context, ctx->ccache, NULL, server_str);
 706 #endif
 707     if(do_afslog && k_hasafs())
 708         krb5_afslog(ctx->context, ctx->ccache, NULL, NULL);
 709 
 710     expire = ticket_lifetime(ctx->context, ctx->ccache, ctx->principal,
 711                              server_str) / 2;
 712     return expire + 1;
 713 }
 714 
 715 int
 716 main (int argc, char **argv)
     /* [<][>][^][v][top][bottom][index][help] */
 717 {
 718     krb5_error_code ret;
 719     krb5_context context;
 720     krb5_ccache  ccache;
 721     krb5_principal principal;
 722     int optidx = 0;
 723     krb5_deltat ticket_life = 0;
 724     int parseflags = 0;
 725 
 726     setprogname (argv[0]);
 727 
 728     setlocale (LC_ALL, "");
 729 #if defined(HEIMDAL_LOCALEDIR)
 730     bindtextdomain ("heimdal_kuser", HEIMDAL_LOCALEDIR);
 731     textdomain("heimdal_kuser");
 732 #endif
 733 
 734     ret = krb5_init_context (&context);
 735     if (ret == KRB5_CONFIG_BADFORMAT)
 736         errx (1, "krb5_init_context failed to parse configuration file");
 737     else if (ret)
 738         errx(1, "krb5_init_context failed: %d", ret);
 739 
 740     if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
 741         usage(1);
 742 
 743     if (help_flag)
 744         usage (0);
 745 
 746     if(version_flag) {
 747         print_version(NULL);
 748         exit(0);
 749     }
 750 
 751     argc -= optidx;
 752     argv += optidx;
 753 
 754     if (canonicalize_flag)
 755         parseflags |= KRB5_PRINCIPAL_PARSE_ENTERPRISE;
 756 
 757     if (argv[0]) {
 758         ret = krb5_parse_name_flags (context, argv[0], parseflags, &principal);
 759         if (ret)
 760             krb5_err (context, 1, ret, "krb5_parse_name");
 761     } else {
 762         ret = krb5_get_default_principal (context, &principal);
 763         if (ret)
 764             krb5_err (context, 1, ret, "krb5_get_default_principal");
 765     }
 766 
 767     if(fcache_version)
 768         krb5_set_fcache_version(context, fcache_version);
 769 
 770     if(renewable_flag == -1)
 771         /* this seems somewhat pointless, but whatever */
 772         krb5_appdefault_boolean(context, "kinit",
 773                                 krb5_principal_get_realm(context, principal),
 774                                 "renewable", FALSE, &renewable_flag);
 775 #ifndef HEIMDAL_SMALLER
 776     if(get_v4_tgt == -1)
 777         krb5_appdefault_boolean(context, "kinit",
 778                                 krb5_principal_get_realm(context, principal),
 779                                 "krb4_get_tickets", FALSE, &get_v4_tgt);
 780 #endif
 781     if(do_afslog == -1)
 782         krb5_appdefault_boolean(context, "kinit",
 783                                 krb5_principal_get_realm(context, principal),
 784                                 "afslog", TRUE, &do_afslog);
 785 
 786     if(cred_cache)
 787         ret = krb5_cc_resolve(context, cred_cache, &ccache);
 788     else {
 789         if(argc > 1) {
 790             char s[1024];
 791             ret = krb5_cc_gen_new(context, &krb5_fcc_ops, &ccache);
 792             if(ret)
 793                 krb5_err(context, 1, ret, "creating cred cache");
 794             snprintf(s, sizeof(s), "%s:%s",
 795                      krb5_cc_get_type(context, ccache),
 796                      krb5_cc_get_name(context, ccache));
 797             setenv("KRB5CCNAME", s, 1);
 798 #ifndef HEIMDAL_SMALLER
 799             if (get_v4_tgt) {
 800                 int fd;
 801                 if (asprintf(&krb4_cc_name, "%s_XXXXXX", TKT_ROOT) < 0)
 802                     krb5_errx(context, 1, "out of memory");
 803                 if((fd = mkstemp(krb4_cc_name)) >= 0) {
 804                     close(fd);
 805                     setenv("KRBTKFILE", krb4_cc_name, 1);
 806                 } else {
 807                     free(krb4_cc_name);
 808                     krb4_cc_name = NULL;
 809                 }
 810             }
 811 #endif
 812         } else {
 813             ret = krb5_cc_cache_match(context, principal, &ccache);
 814             if (ret)
 815                 ret = krb5_cc_default (context, &ccache);
 816         }
 817     }
 818     if (ret)
 819         krb5_err (context, 1, ret, N_("resolving credentials cache", ""));
 820 
 821     if(argc > 1 && k_hasafs ())
 822         k_setpag();
 823 
 824     if (lifetime) {
 825         int tmp = parse_time (lifetime, "s");
 826         if (tmp < 0)
 827             errx (1, N_("unparsable time: %s", ""), lifetime);
 828 
 829         ticket_life = tmp;
 830     }
 831 
 832     if(addrs_flag == 0 && extra_addresses.num_strings > 0)
 833         krb5_errx(context, 1,
 834                   N_("specifying both extra addresses and "
 835                      "no addresses makes no sense", ""));
 836     {
 837         int i;
 838         krb5_addresses addresses;
 839         memset(&addresses, 0, sizeof(addresses));
 840         for(i = 0; i < extra_addresses.num_strings; i++) {
 841             ret = krb5_parse_address(context, extra_addresses.strings[i],
 842                                      &addresses);
 843             if (ret == 0) {
 844                 krb5_add_extra_addresses(context, &addresses);
 845                 krb5_free_addresses(context, &addresses);
 846             }
 847         }
 848         free_getarg_strings(&extra_addresses);
 849     }
 850 
 851     if(renew_flag || validate_flag) {
 852         ret = renew_validate(context, renew_flag, validate_flag,
 853                              ccache, server_str, ticket_life);
 854         exit(ret != 0);
 855     }
 856 
 857 #ifndef HEIMDAL_SMALLER
 858     if(!convert_524)
 859 #endif
 860         get_new_tickets(context, principal, ccache, ticket_life, 1);
 861 
 862 #ifndef HEIMDAL_SMALLER
 863     if(get_v4_tgt || convert_524)
 864         do_524init(context, ccache, NULL, server_str);
 865 #endif
 866     if(do_afslog && k_hasafs())
 867         krb5_afslog(context, ccache, NULL, NULL);
 868     if(argc > 1) {
 869         struct renew_ctx ctx;
 870         time_t timeout;
 871 
 872         timeout = ticket_lifetime(context, ccache, principal, server_str) / 2;
 873 
 874         ctx.context = context;
 875         ctx.ccache = ccache;
 876         ctx.principal = principal;
 877         ctx.ticket_life = ticket_life;
 878 
 879         ret = simple_execvp_timed(argv[1], argv+1,
 880                                   renew_func, &ctx, timeout);
 881 #define EX_NOEXEC       126
 882 #define EX_NOTFOUND     127
 883         if(ret == EX_NOEXEC)
 884             krb5_warnx(context, N_("permission denied: %s", ""), argv[1]);
 885         else if(ret == EX_NOTFOUND)
 886             krb5_warnx(context, N_("command not found: %s", ""), argv[1]);
 887         
 888         krb5_cc_destroy(context, ccache);
 889 #ifndef HEIMDAL_SMALLER
 890         _krb5_krb_dest_tkt(context, krb4_cc_name);
 891 #endif
 892         if(k_hasafs())
 893             k_unlog();
 894     } else {
 895         krb5_cc_close (context, ccache);
 896         ret = 0;
 897     }
 898     krb5_free_principal(context, principal);
 899     krb5_free_context (context);
 900     return ret;
 901 }

/* [<][>][^][v][top][bottom][index][help] */