crypto/dist/heimdal/kuser/klist.c

   1 /*
   2  * Copyright (c) 1997-2004 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 #include "rtbl.h"
  36
  37 __RCSID("$Heimdal: klist.c 20516 2007-04-22 10:40:41Z lha $"
  38         "$NetBSD$");
  39
  40 static char*
  41 printable_time(time_t t)
  42 {
  43     static char s[128];
  44     strlcpy(s, ctime(&t)+ 4, sizeof(s));
  45     s[15] = 0;
  46     return s;
  47 }
  48
  49 static char*
  50 printable_time_long(time_t t)
  51 {
  52     static char s[128];
  53     strlcpy(s, ctime(&t)+ 4, sizeof(s));
  54     s[20] = 0;
  55     return s;
  56 }
  57
  58 #define COL_ISSUED              "  Issued"
  59 #define COL_EXPIRES             "  Expires"
  60 #define COL_FLAGS               "Flags"
  61 #define COL_PRINCIPAL           "  Principal"
  62 #define COL_PRINCIPAL_KVNO      "  Principal (kvno)"
  63 #define COL_CACHENAME           "  Cache name"
  64
  65 static void
  66 print_cred(krb5_context context, krb5_creds *cred, rtbl_t ct, int do_flags)
  67 {
  68     char *str;
  69     krb5_error_code ret;
  70     krb5_timestamp sec;
  71
  72     krb5_timeofday (context, &sec);
  73
  74
  75     if(cred->times.starttime)
  76         rtbl_add_column_entry(ct, COL_ISSUED,
  77                               printable_time(cred->times.starttime));
  78     else
  79         rtbl_add_column_entry(ct, COL_ISSUED,
  80                               printable_time(cred->times.authtime));
  81
  82     if(cred->times.endtime > sec)
  83         rtbl_add_column_entry(ct, COL_EXPIRES,
  84                               printable_time(cred->times.endtime));
  85     else
  86         rtbl_add_column_entry(ct, COL_EXPIRES, ">>>Expired<<<");
  87     ret = krb5_unparse_name (context, cred->server, &str);
  88     if (ret)
  89         krb5_err(context, 1, ret, "krb5_unparse_name");
  90     rtbl_add_column_entry(ct, COL_PRINCIPAL, str);
  91     if(do_flags) {
  92         char s[16], *sp = s;
  93         if(cred->flags.b.forwardable)
  94             *sp++ = 'F';
  95         if(cred->flags.b.forwarded)
  96             *sp++ = 'f';
  97         if(cred->flags.b.proxiable)
  98             *sp++ = 'P';
  99         if(cred->flags.b.proxy)
 100             *sp++ = 'p';
 101         if(cred->flags.b.may_postdate)
 102             *sp++ = 'D';
 103         if(cred->flags.b.postdated)
 104             *sp++ = 'd';
 105         if(cred->flags.b.renewable)
 106             *sp++ = 'R';
 107         if(cred->flags.b.initial)
 108             *sp++ = 'I';
 109         if(cred->flags.b.invalid)
 110             *sp++ = 'i';
 111         if(cred->flags.b.pre_authent)
 112             *sp++ = 'A';
 113         if(cred->flags.b.hw_authent)
 114             *sp++ = 'H';
 115         *sp++ = '\0';
 116         rtbl_add_column_entry(ct, COL_FLAGS, s);
 117     }
 118     free(str);
 119 }
 120
 121 static void
 122 print_cred_verbose(krb5_context context, krb5_creds *cred)
 123 {
 124     int j;
 125     char *str;
 126     krb5_error_code ret;
 127     int first_flag;
 128     krb5_timestamp sec;
 129
 130     krb5_timeofday (context, &sec);
 131
 132     ret = krb5_unparse_name(context, cred->server, &str);
 133     if(ret)
 134         exit(1);
 135     printf("Server: %s\n", str);
 136     free (str);
 137
 138     ret = krb5_unparse_name(context, cred->client, &str);
 139     if(ret)
 140         exit(1);
 141     printf("Client: %s\n", str);
 142     free (str);
 143
 144     {
 145         Ticket t;
 146         size_t len;
 147         char *s;
 148
 149         decode_Ticket(cred->ticket.data, cred->ticket.length, &t, &len);
 150         ret = krb5_enctype_to_string(context, t.enc_part.etype, &s);
 151         printf("Ticket etype: ");
 152         if (ret == 0) {
 153             printf("%s", s);
 154             free(s);
 155         } else {
 156             printf("unknown(%d)", t.enc_part.etype);
 157         }
 158         if(t.enc_part.kvno)
 159             printf(", kvno %d", *t.enc_part.kvno);
 160         printf("\n");
 161         if(cred->session.keytype != t.enc_part.etype) {
 162             ret = krb5_enctype_to_string(context, cred->session.keytype, &str);
 163             if(ret)
 164                 krb5_warn(context, ret, "session keytype");
 165             else {
 166                 printf("Session key: %s\n", str);
 167                 free(str);
 168             }
 169         }
 170         free_Ticket(&t);
 171         printf("Ticket length: %lu\n", (unsigned long)cred->ticket.length);
 172     }
 173     printf("Auth time:  %s\n", printable_time_long(cred->times.authtime));
 174     if(cred->times.authtime != cred->times.starttime)
 175         printf("Start time: %s\n", printable_time_long(cred->times.starttime));
 176     printf("End time:   %s", printable_time_long(cred->times.endtime));
 177     if(sec > cred->times.endtime)
 178         printf(" (expired)");
 179     printf("\n");
 180     if(cred->flags.b.renewable)
 181         printf("Renew till: %s\n",
 182                printable_time_long(cred->times.renew_till));
 183     printf("Ticket flags: ");
 184 #define PRINT_FLAG2(f, s) if(cred->flags.b.f) { if(!first_flag) printf(", "); printf("%s", #s); first_flag = 0; }
 185 #define PRINT_FLAG(f) PRINT_FLAG2(f, f)
 186     first_flag = 1;
 187     PRINT_FLAG(forwardable);
 188     PRINT_FLAG(forwarded);
 189     PRINT_FLAG(proxiable);
 190     PRINT_FLAG(proxy);
 191     PRINT_FLAG2(may_postdate, may-postdate);
 192     PRINT_FLAG(postdated);
 193     PRINT_FLAG(invalid);
 194     PRINT_FLAG(renewable);
 195     PRINT_FLAG(initial);
 196     PRINT_FLAG2(pre_authent, pre-authenticated);
 197     PRINT_FLAG2(hw_authent, hw-authenticated);
 198     PRINT_FLAG2(transited_policy_checked, transited-policy-checked);
 199     PRINT_FLAG2(ok_as_delegate, ok-as-delegate);
 200     PRINT_FLAG(anonymous);
 201     printf("\n");
 202     printf("Addresses: ");
 203     if (cred->addresses.len != 0) {
 204         for(j = 0; j < cred->addresses.len; j++){
 205             char buf[128];
 206             size_t len;
 207             if(j) printf(", ");
 208             ret = krb5_print_address(&cred->addresses.val[j],
 209                                      buf, sizeof(buf), &len);
 210
 211             if(ret == 0)
 212                 printf("%s", buf);
 213         }
 214     } else {
 215         printf("addressless");
 216     }
 217     printf("\n\n");
 218 }
 219
 220 /*
 221  * Print all tickets in `ccache' on stdout, verbosily iff do_verbose.
 222  */
 223
 224 static void
 225 print_tickets (krb5_context context,
 226                krb5_ccache ccache,
 227                krb5_principal principal,
 228                int do_verbose,
 229                int do_flags,
 230                int do_hidden)
 231 {
 232     krb5_error_code ret;
 233     char *str;
 234     krb5_cc_cursor cursor;
 235     krb5_creds creds;
 236     int32_t sec, usec;
 237
 238     rtbl_t ct = NULL;
 239
 240     ret = krb5_unparse_name (context, principal, &str);
 241     if (ret)
 242         krb5_err (context, 1, ret, "krb5_unparse_name");
 243
 244     printf ("%17s: %s:%s\n",
 245             "Credentials cache",
 246             krb5_cc_get_type(context, ccache),
 247             krb5_cc_get_name(context, ccache));
 248     printf ("%17s: %s\n", "Principal", str);
 249     free (str);
 250
 251     if(do_verbose)
 252         printf ("%17s: %d\n", "Cache version",
 253                 krb5_cc_get_version(context, ccache));
 254
 255     krb5_get_kdc_sec_offset(context, &sec, &usec);
 256
 257     if (do_verbose && sec != 0) {
 258         char buf[BUFSIZ];
 259         int val;
 260         int sig;
 261
 262         val = sec;
 263         sig = 1;
 264         if (val < 0) {
 265             sig = -1;
 266             val = -val;
 267         }
 268
 269         unparse_time (val, buf, sizeof(buf));
 270
 271         printf ("%17s: %s%s\n", "KDC time offset",
 272                 sig == -1 ? "-" : "", buf);
 273     }
 274
 275     printf("\n");
 276
 277     ret = krb5_cc_start_seq_get (context, ccache, &cursor);
 278     if (ret)
 279         krb5_err(context, 1, ret, "krb5_cc_start_seq_get");
 280
 281     if(!do_verbose) {
 282         ct = rtbl_create();
 283         rtbl_add_column(ct, COL_ISSUED, 0);
 284         rtbl_add_column(ct, COL_EXPIRES, 0);
 285         if(do_flags)
 286             rtbl_add_column(ct, COL_FLAGS, 0);
 287         rtbl_add_column(ct, COL_PRINCIPAL, 0);
 288         rtbl_set_separator(ct, "  ");
 289     }
 290     while ((ret = krb5_cc_next_cred (context,
 291                                      ccache,
 292                                      &cursor,
 293                                      &creds)) == 0) {
 294         const char *str;
 295         str = krb5_principal_get_comp_string(context, creds.server, 0);
 296         if (!do_hidden && str && str[0] == '@') {
 297             ;
 298         }else if(do_verbose){
 299             print_cred_verbose(context, &creds);
 300         }else{
 301             print_cred(context, &creds, ct, do_flags);
 302         }
 303         krb5_free_cred_contents (context, &creds);
 304     }
 305     if(ret != KRB5_CC_END)
 306         krb5_err(context, 1, ret, "krb5_cc_get_next");
 307     ret = krb5_cc_end_seq_get (context, ccache, &cursor);
 308     if (ret)
 309         krb5_err (context, 1, ret, "krb5_cc_end_seq_get");
 310     if(!do_verbose) {
 311         rtbl_format(ct, stdout);
 312         rtbl_destroy(ct);
 313     }
 314 }
 315
 316 /*
 317  * Check if there's a tgt for the realm of `principal' and ccache and
 318  * if so return 0, else 1
 319  */
 320
 321 static int
 322 check_for_tgt (krb5_context context,
 323                krb5_ccache ccache,
 324                krb5_principal principal,
 325                time_t *expiration)
 326 {
 327     krb5_error_code ret;
 328     krb5_creds pattern;
 329     krb5_creds creds;
 330     krb5_realm *client_realm;
 331     int expired;
 332
 333     krb5_cc_clear_mcred(&pattern);
 334
 335     client_realm = krb5_princ_realm (context, principal);
 336
 337     ret = krb5_make_principal (context, &pattern.server,
 338                                *client_realm, KRB5_TGS_NAME, *client_realm,
 339                                NULL);
 340     if (ret)
 341         krb5_err (context, 1, ret, "krb5_make_principal");
 342     pattern.client = principal;
 343
 344     ret = krb5_cc_retrieve_cred (context, ccache, 0, &pattern, &creds);
 345     krb5_free_principal (context, pattern.server);
 346     if (ret) {
 347         if (ret == KRB5_CC_END)
 348             return 1;
 349         krb5_err (context, 1, ret, "krb5_cc_retrieve_cred");
 350     }
 351
 352     expired = time(NULL) > creds.times.endtime;
 353
 354     if (expiration)
 355         *expiration = creds.times.endtime;
 356
 357     krb5_free_cred_contents (context, &creds);
 358
 359     return expired;
 360 }
 361
 362 /*
 363  * Print a list of all AFS tokens
 364  */
 365
 366 static void
 367 display_tokens(int do_verbose)
 368 {
 369     uint32_t i;
 370     unsigned char t[4096];
 371     struct ViceIoctl parms;
 372
 373     parms.in = (void *)&i;
 374     parms.in_size = sizeof(i);
 375     parms.out = (void *)t;
 376     parms.out_size = sizeof(t);
 377
 378     for (i = 0;; i++) {
 379         int32_t size_secret_tok, size_public_tok;
 380         unsigned char *cell;
 381         struct ClearToken ct;
 382         unsigned char *r = t;
 383         struct timeval tv;
 384         char buf1[20], buf2[20];
 385
 386         if(k_pioctl(NULL, VIOCGETTOK, &parms, 0) < 0) {
 387             if(errno == EDOM)
 388                 break;
 389             continue;
 390         }
 391         if(parms.out_size > sizeof(t))
 392             continue;
 393         if(parms.out_size < sizeof(size_secret_tok))
 394             continue;
 395         t[min(parms.out_size,sizeof(t)-1)] = 0;
 396         memcpy(&size_secret_tok, r, sizeof(size_secret_tok));
 397         /* dont bother about the secret token */
 398         r += size_secret_tok + sizeof(size_secret_tok);
 399         if (parms.out_size < (r - t) + sizeof(size_public_tok))
 400             continue;
 401         memcpy(&size_public_tok, r, sizeof(size_public_tok));
 402         r += sizeof(size_public_tok);
 403         if (parms.out_size < (r - t) + size_public_tok + sizeof(int32_t))
 404             continue;
 405         memcpy(&ct, r, size_public_tok);
 406         r += size_public_tok;
 407         /* there is a int32_t with length of cellname, but we dont read it */
 408         r += sizeof(int32_t);
 409         cell = r;
 410
 411         gettimeofday (&tv, NULL);
 412         strlcpy (buf1, printable_time(ct.BeginTimestamp),
 413                  sizeof(buf1));
 414         if (do_verbose || tv.tv_sec < ct.EndTimestamp)
 415             strlcpy (buf2, printable_time(ct.EndTimestamp),
 416                      sizeof(buf2));
 417         else
 418             strlcpy (buf2, ">>> Expired <<<", sizeof(buf2));
 419
 420         printf("%s  %s  ", buf1, buf2);
 421
 422         if ((ct.EndTimestamp - ct.BeginTimestamp) & 1)
 423             printf("User's (AFS ID %d) tokens for %s", ct.ViceId, cell);
 424         else
 425             printf("Tokens for %s", cell);
 426         if (do_verbose)
 427             printf(" (%d)", ct.AuthHandle);
 428         putchar('\n');
 429     }
 430 }
 431
 432 /*
 433  * display the ccache in `cred_cache'
 434  */
 435
 436 static int
 437 display_v5_ccache (const char *cred_cache, int do_test, int do_verbose,
 438                    int do_flags, int do_hidden)
 439 {
 440     krb5_error_code ret;
 441     krb5_context context;
 442     krb5_ccache ccache;
 443     krb5_principal principal;
 444     int exit_status = 0;
 445
 446     ret = krb5_init_context (&context);
 447     if (ret)
 448         errx (1, "krb5_init_context failed: %d", ret);
 449
 450     if(cred_cache) {
 451         ret = krb5_cc_resolve(context, cred_cache, &ccache);
 452         if (ret)
 453             krb5_err (context, 1, ret, "%s", cred_cache);
 454     } else {
 455         ret = krb5_cc_default (context, &ccache);
 456         if (ret)
 457             krb5_err (context, 1, ret, "krb5_cc_resolve");
 458     }
 459
 460     ret = krb5_cc_get_principal (context, ccache, &principal);
 461     if (ret) {
 462         if(ret == ENOENT) {
 463             if (!do_test)
 464                 krb5_warnx(context, "No ticket file: %s",
 465                            krb5_cc_get_name(context, ccache));
 466             return 1;
 467         } else
 468             krb5_err (context, 1, ret, "krb5_cc_get_principal");
 469     }
 470     if (do_test)
 471         exit_status = check_for_tgt (context, ccache, principal, NULL);
 472     else
 473         print_tickets (context, ccache, principal, do_verbose,
 474                        do_flags, do_hidden);
 475
 476     ret = krb5_cc_close (context, ccache);
 477     if (ret)
 478         krb5_err (context, 1, ret, "krb5_cc_close");
 479
 480     krb5_free_principal (context, principal);
 481     krb5_free_context (context);
 482     return exit_status;
 483 }
 484
 485 /*
 486  *
 487  */
 488
 489 static int
 490 list_caches(void)
 491 {
 492     krb5_cc_cache_cursor cursor;
 493     krb5_context context;
 494     krb5_error_code ret;
 495     krb5_ccache id;
 496     rtbl_t ct;
 497
 498     ret = krb5_init_context (&context);
 499     if (ret)
 500         errx (1, "krb5_init_context failed: %d", ret);
 501
 502     ret = krb5_cc_cache_get_first (context, NULL, &cursor);
 503     if (ret == KRB5_CC_NOSUPP)
 504         return 0;
 505     else if (ret)
 506         krb5_err (context, 1, ret, "krb5_cc_cache_get_first");
 507
 508     ct = rtbl_create();
 509     rtbl_add_column(ct, COL_PRINCIPAL, 0);
 510     rtbl_add_column(ct, COL_CACHENAME, 0);
 511     rtbl_add_column(ct, COL_EXPIRES, 0);
 512     rtbl_set_prefix(ct, "   ");
 513     rtbl_set_column_prefix(ct, COL_PRINCIPAL, "");
 514
 515     while ((ret = krb5_cc_cache_next (context, cursor, &id)) == 0) {
 516         krb5_principal principal;
 517         char *name;
 518
 519         ret = krb5_cc_get_principal(context, id, &principal);
 520         if (ret == 0) {
 521             time_t t;
 522             int expired = check_for_tgt (context, id, principal, &t);
 523
 524             ret = krb5_unparse_name(context, principal, &name);
 525             if (ret == 0) {
 526                 rtbl_add_column_entry(ct, COL_PRINCIPAL, name);
 527                 rtbl_add_column_entry(ct, COL_CACHENAME,
 528                                       krb5_cc_get_name(context, id));
 529                 rtbl_add_column_entry(ct, COL_EXPIRES,
 530                                       expired ? ">>> Expired <<<" :
 531                                       printable_time(t));
 532                 free(name);
 533                 krb5_free_principal(context, principal);
 534             }
 535         }
 536         krb5_cc_close(context, id);
 537     }
 538
 539     krb5_cc_cache_end_seq_get(context, cursor);
 540
 541     rtbl_format(ct, stdout);
 542     rtbl_destroy(ct);
 543
 544     return 0;
 545 }
 546
 547 /*
 548  *
 549  */
 550
 551 static int version_flag         = 0;
 552 static int help_flag            = 0;
 553 static int do_verbose           = 0;
 554 static int do_list_caches       = 0;
 555 static int do_test              = 0;
 556 static int do_tokens            = 0;
 557 static int do_v5                = 1;
 558 static char *cred_cache;
 559 static int do_flags             = 0;
 560 static int do_hidden            = 0;
 561
 562 static struct getargs args[] = {
 563     { NULL, 'f', arg_flag, &do_flags },
 564     { "cache",                  'c', arg_string, &cred_cache,
 565       "credentials cache to list", "cache" },
 566     { "test",                   't', arg_flag, &do_test,
 567       "test for having tickets", NULL },
 568     { NULL,                     's', arg_flag, &do_test },
 569     { "tokens",                 'T',   arg_flag, &do_tokens,
 570       "display AFS tokens", NULL },
 571     { "v5",                     '5',    arg_flag, &do_v5,
 572       "display v5 cred cache", NULL},
 573     { "list-caches",            'l', arg_flag, &do_list_caches,
 574       "verbose output", NULL },
 575     { "verbose",                'v', arg_flag, &do_verbose,
 576       "verbose output", NULL },
 577     { "hidden",                 0,   arg_flag, &do_hidden,
 578       "display hidden credentials", NULL },
 579     { NULL,                     'a', arg_flag, &do_verbose },
 580     { NULL,                     'n', arg_flag, &do_verbose },
 581     { "version",                0,   arg_flag, &version_flag,
 582       "print version", NULL },
 583     { "help",                   0,   arg_flag, &help_flag,
 584       NULL, NULL}
 585 };
 586
 587 static void
 588 usage (int ret)
 589 {
 590     arg_printusage (args,
 591                     sizeof(args)/sizeof(*args),
 592                     NULL,
 593                     "");
 594     exit (ret);
 595 }
 596
 597 int
 598 main (int argc, char **argv)
 599 {
 600     int optidx = 0;
 601     int exit_status = 0;
 602
 603     setprogname (argv[0]);
 604
 605     if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
 606         usage(1);
 607
 608     if (help_flag)
 609         usage (0);
 610
 611     if(version_flag){
 612         print_version(NULL);
 613         exit(0);
 614     }
 615
 616     argc -= optidx;
 617     argv += optidx;
 618
 619     if (argc != 0)
 620         usage (1);
 621
 622     if (do_list_caches) {
 623         exit_status = list_caches();
 624         return exit_status;
 625     }
 626
 627     if (do_v5)
 628         exit_status = display_v5_ccache (cred_cache, do_test,
 629                                          do_verbose, do_flags, do_hidden);
 630
 631     if (!do_test) {
 632         if (do_tokens && k_hasafs ()) {
 633             if (do_v5)
 634                 printf ("\n");
 635             display_tokens (do_verbose);
 636         }
 637     }
 638
 639     return exit_status;
 640 }