third_party/heimdal/lib/krb5/verify_krb5_conf.c

   1 /*
   2  * Copyright (c) 1999 - 2005 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 "krb5_locl.h"
  35 #include <getarg.h>
  36 #include <parse_bytes.h>
  37 #include <err.h>
  38
  39 /* verify krb5.conf */
  40 static int dumpconfig_flag = 0;
  41 static int version_flag = 0;
  42 static int help_flag    = 0;
  43 static int warn_mit_syntax_flag = 0;
  44
  45 static struct getargs args[] = {
  46     {"dumpconfig", 0,      arg_flag,       &dumpconfig_flag,
  47      "show the parsed config files", NULL },
  48     {"warn-mit-syntax", 0, arg_flag,       &warn_mit_syntax_flag,
  49      "show the parsed config files", NULL },
  50     {"version", 0,      arg_flag,       &version_flag,
  51      "print version", NULL },
  52     {"help",    0,      arg_flag,       &help_flag,
  53      NULL, NULL }
  54 };
  55
  56 static void
  57 usage (int ret)
  58 {
  59     arg_printusage (args,
  60                     sizeof(args)/sizeof(*args),
  61                     NULL,
  62                     "[config-file]");
  63     exit (ret);
  64 }
  65
  66 static int
  67 check_bytes(krb5_context context, const char *path, char *data)
  68 {
  69     if(parse_bytes(data, NULL) == -1) {
  70         krb5_warnx(context, "%s: failed to parse \"%s\" as size", path, data);
  71         return 1;
  72     }
  73     return 0;
  74 }
  75
  76 static int
  77 check_time(krb5_context context, const char *path, char *data)
  78 {
  79     if(parse_time(data, NULL) == -1) {
  80         krb5_warnx(context, "%s: failed to parse \"%s\" as time", path, data);
  81         return 1;
  82     }
  83     return 0;
  84 }
  85
  86 static int
  87 check_numeric(krb5_context context, const char *path, char *data)
  88 {
  89     long v;
  90     char *end;
  91     v = strtol(data, &end, 0);
  92
  93     if ((v == LONG_MIN || v == LONG_MAX) && errno != 0) {
  94         krb5_warnx(context, "%s: over/under flow for \"%s\"",
  95                    path, data);
  96         return 1;
  97     }
  98     if(*end != '\0') {
  99         krb5_warnx(context, "%s: failed to parse \"%s\" as a number",
 100                    path, data);
 101         return 1;
 102     }
 103     return 0;
 104 }
 105
 106 static int
 107 check_boolean(krb5_context context, const char *path, char *data)
 108 {
 109     long int v;
 110     char *end;
 111     if(strcasecmp(data, "yes") == 0 ||
 112        strcasecmp(data, "true") == 0 ||
 113        strcasecmp(data, "no") == 0 ||
 114        strcasecmp(data, "false") == 0)
 115         return 0;
 116     v = strtol(data, &end, 0);
 117     if(*end != '\0') {
 118         krb5_warnx(context, "%s: failed to parse \"%s\" as a boolean",
 119                    path, data);
 120         return 1;
 121     }
 122     if(v != 0 && v != 1)
 123         krb5_warnx(context, "%s: numeric value \"%s\" is treated as \"true\"",
 124                    path, data);
 125     return 0;
 126 }
 127
 128 static int
 129 check_524(krb5_context context, const char *path, char *data)
 130 {
 131     if(strcasecmp(data, "yes") == 0 ||
 132        strcasecmp(data, "no") == 0 ||
 133        strcasecmp(data, "2b") == 0 ||
 134        strcasecmp(data, "local") == 0)
 135         return 0;
 136
 137     krb5_warnx(context, "%s: didn't contain a valid option `%s'",
 138                path, data);
 139     return 1;
 140 }
 141
 142 static int
 143 check_host(krb5_context context, const char *path, char *data)
 144 {
 145     int ret;
 146     char hostname[128];
 147     const char *p = data;
 148     struct addrinfo hints;
 149     char service[32];
 150     int defport;
 151     struct addrinfo *ai;
 152
 153     hints.ai_flags = 0;
 154     hints.ai_family = PF_UNSPEC;
 155     hints.ai_socktype = 0;
 156     hints.ai_protocol = 0;
 157
 158     hints.ai_addrlen = 0;
 159     hints.ai_canonname = NULL;
 160     hints.ai_addr = NULL;
 161     hints.ai_next = NULL;
 162
 163     /* XXX data could be a list of hosts that this code can't handle */
 164     /* XXX copied from krbhst.c */
 165     if (strncmp(p, "http://", 7) == 0){
 166         p += 7;
 167         hints.ai_socktype = SOCK_STREAM;
 168         strlcpy(service, "http", sizeof(service));
 169         defport = 80;
 170     } else if (strncmp(p, "http/", 5) == 0) {
 171         p += 5;
 172         hints.ai_socktype = SOCK_STREAM;
 173         strlcpy(service, "http", sizeof(service));
 174         defport = 80;
 175     } else if (strncmp(p, "tcp/", 4) == 0){
 176         p += 4;
 177         hints.ai_socktype = SOCK_STREAM;
 178         strlcpy(service, "kerberos", sizeof(service));
 179         defport = 88;
 180     } else if (strncmp(p, "udp/", 4) == 0) {
 181         p += 4;
 182         hints.ai_socktype = SOCK_DGRAM;
 183         strlcpy(service, "kerberos", sizeof(service));
 184         defport = 88;
 185     } else {
 186         hints.ai_socktype = SOCK_DGRAM;
 187         strlcpy(service, "kerberos", sizeof(service));
 188         defport = 88;
 189     }
 190     if (strsep_copy(&p, ":", hostname, sizeof(hostname)) < 0) {
 191         return 1;
 192     }
 193     hostname[strcspn(hostname, "/")] = '\0';
 194     if (p != NULL) {
 195         char *end;
 196         int tmp = strtol(p, &end, 0);
 197         if (end == p) {
 198             krb5_warnx(context, "%s: failed to parse port number in %s",
 199                        path, data);
 200             return 1;
 201         }
 202         defport = tmp;
 203         snprintf(service, sizeof(service), "%u", defport);
 204     }
 205     if (krb5_config_get_bool(context, NULL, "libdefaults", "block_dns",
 206             NULL)) {
 207         hints.ai_flags &= ~AI_CANONNAME;
 208         hints.ai_flags |= AI_NUMERICHOST|AI_NUMERICSERV;
 209     }
 210     ret = getaddrinfo(hostname, service, &hints, &ai);
 211     if (ret == EAI_SERVICE && !isdigit((unsigned char)service[0])) {
 212         snprintf(service, sizeof(service), "%u", defport);
 213         ret = getaddrinfo(hostname, service, &hints, &ai);
 214     }
 215     if (ret != 0) {
 216         krb5_warnx(context, "%s: %s (%s)", path, gai_strerror(ret), hostname);
 217         return 1;
 218     }
 219     freeaddrinfo(ai);
 220     return 0;
 221 }
 222
 223 static int
 224 check_directory(krb5_context context, const char *path, char *data)
 225 {
 226     DIR *d = opendir(data);
 227     if (d == NULL) {
 228         krb5_warn(context, errno, "%s: could not open directory `%s'",
 229                   path, data);
 230         return 1;
 231     }
 232
 233     closedir(d);
 234     return 0;
 235 }
 236
 237 static int
 238 mit_entry(krb5_context context, const char *path, char *data)
 239 {
 240     if (warn_mit_syntax_flag)
 241         krb5_warnx(context, "%s is only used by MIT Kerberos", path);
 242     return 0;
 243 }
 244
 245 struct s2i {
 246     const char *s;
 247     int val;
 248 };
 249
 250 #define L(X) { #X, LOG_ ## X }
 251
 252 static struct s2i syslogvals[] = {
 253     /* severity */
 254     L(EMERG),
 255     L(ALERT),
 256     L(CRIT),
 257     L(ERR),
 258     L(WARNING),
 259     L(NOTICE),
 260     L(INFO),
 261     L(DEBUG),
 262     /* facility */
 263     L(AUTH),
 264 #ifdef LOG_AUTHPRIV
 265     L(AUTHPRIV),
 266 #endif
 267 #ifdef LOG_CRON
 268     L(CRON),
 269 #endif
 270     L(DAEMON),
 271 #ifdef LOG_FTP
 272     L(FTP),
 273 #endif
 274     L(KERN),
 275     L(LPR),
 276     L(MAIL),
 277 #ifdef LOG_NEWS
 278     L(NEWS),
 279 #endif
 280     L(SYSLOG),
 281     L(USER),
 282 #ifdef LOG_UUCP
 283     L(UUCP),
 284 #endif
 285     L(LOCAL0),
 286     L(LOCAL1),
 287     L(LOCAL2),
 288     L(LOCAL3),
 289     L(LOCAL4),
 290     L(LOCAL5),
 291     L(LOCAL6),
 292     L(LOCAL7),
 293     { NULL, -1 }
 294 };
 295
 296 static int
 297 find_value(const char *s, struct s2i *table)
 298 {
 299     while (table->s && strcasecmp(table->s, s) != 0)
 300         table++;
 301     return table->val;
 302 }
 303
 304 static int
 305 check_log(krb5_context context, const char *path, char *data)
 306 {
 307     /* XXX sync with log.c */
 308     int min = 0, max = -1, n;
 309     char c;
 310     const char *p = data;
 311 #ifdef _WIN32
 312     const char *q;
 313 #endif
 314
 315     n = sscanf(p, "%d%c%d/", &min, &c, &max);
 316     if(n == 2){
 317         if(ISPATHSEP(c)) {
 318             if(min < 0){
 319                 max = -min;
 320                 min = 0;
 321             }else{
 322                 max = min;
 323             }
 324         }
 325     }
 326     if(n){
 327 #ifdef _WIN32
 328         q = strrchr(p, '\\');
 329         if (q != NULL)
 330             p = q;
 331         else
 332 #endif
 333         p = strchr(p, '/');
 334         if(p == NULL) {
 335             krb5_warnx(context, "%s: failed to parse \"%s\"", path, data);
 336             return 1;
 337         }
 338         p++;
 339     }
 340     if(strcmp(p, "STDERR") == 0 ||
 341        strcmp(p, "CONSOLE") == 0 ||
 342        (strncmp(p, "FILE", 4) == 0 && (p[4] == ':' || p[4] == '=')) ||
 343        (strncmp(p, "DEVICE", 6) == 0 && p[6] == '='))
 344         return 0;
 345     if(strncmp(p, "SYSLOG", 6) == 0){
 346         int ret = 0;
 347         char severity[128] = "";
 348         char facility[128] = "";
 349         p += 6;
 350         if(*p != '\0')
 351             p++;
 352         if(strsep_copy(&p, ":", severity, sizeof(severity)) != -1)
 353             strsep_copy(&p, ":", facility, sizeof(facility));
 354         if(*severity == '\0')
 355             strlcpy(severity, "ERR", sizeof(severity));
 356         if(*facility == '\0')
 357             strlcpy(facility, "AUTH", sizeof(facility));
 358         if(find_value(facility, syslogvals) == -1) {
 359             krb5_warnx(context, "%s: unknown syslog facility \"%s\"",
 360                        path, facility);
 361             ret++;
 362         }
 363         if(find_value(severity, syslogvals) == -1) {
 364             krb5_warnx(context, "%s: unknown syslog severity \"%s\"",
 365                        path, severity);
 366             ret++;
 367         }
 368         return ret;
 369     }else{
 370         krb5_warnx(context, "%s: unknown log type: \"%s\"", path, data);
 371         return 1;
 372     }
 373 }
 374
 375 typedef int (*check_func_t)(krb5_context, const char*, char*);
 376 struct entry {
 377     const char *name;
 378     int type;
 379     void *check_data;
 380     int deprecated;
 381 };
 382
 383 struct entry all_strings[] = {
 384     { "", krb5_config_string, NULL, 0 },
 385     { NULL, 0, NULL, 0 }
 386 };
 387
 388 struct entry all_boolean[] = {
 389     { "", krb5_config_string, check_boolean, 0 },
 390     { NULL, 0, NULL, 0 }
 391 };
 392
 393
 394 struct entry v4_name_convert_entries[] = {
 395     { "host", krb5_config_list, all_strings, 0 },
 396     { "plain", krb5_config_list, all_strings, 0 },
 397     { NULL, 0, NULL, 0 }
 398 };
 399
 400 struct entry libdefaults_entries[] = {
 401     { "accept_null_addresses", krb5_config_string, check_boolean, 0 },
 402     { "allow_weak_crypto", krb5_config_string, check_boolean, 0 },
 403     { "block_dns", krb5_config_string, check_boolean, 0 },
 404     { "capath", krb5_config_list, all_strings, 1 },
 405     { "ccapi_library", krb5_config_string, NULL, 0 },
 406     { "check_pac", krb5_config_string, check_boolean, 0 },
 407     { "check-rd-req-server", krb5_config_string, check_boolean, 0 },
 408     { "clockskew", krb5_config_string, check_time, 0 },
 409     { "date_format", krb5_config_string, NULL, 0 },
 410     { "default_as_etypes", krb5_config_string, NULL, 0 },
 411     { "default_ccache_name", krb5_config_string, NULL, 0 },
 412     { "default_client_keytab_name", krb5_config_string, NULL, 0 },
 413     { "default_cc_name", krb5_config_string, NULL, 0 },
 414     { "default_cc_type", krb5_config_string, NULL, 0 },
 415     { "default_cc_collection", krb5_config_string, NULL, 0 },
 416     { "default_etypes", krb5_config_string, NULL, 0 },
 417     { "default_etypes_des", krb5_config_string, NULL, 0 },
 418     { "default_keytab_modify_name", krb5_config_string, NULL, 0 },
 419     { "default_keytab_name", krb5_config_string, NULL, 0 },
 420     { "default_keytab_modify_name", krb5_config_string, NULL, 0 },
 421     { "default_realm", krb5_config_string, NULL, 0 },
 422     { "default_tgs_etypes", krb5_config_string, NULL, 0 },
 423     { "dns_canonicalize_hostname", krb5_config_string, check_boolean, 0 },
 424     { "dns_proxy", krb5_config_string, NULL, 0 },
 425     { "dns_lookup_kdc", krb5_config_string, check_boolean, 0 },
 426     { "dns_lookup_realm", krb5_config_string, check_boolean, 0 },
 427     { "dns_lookup_realm_labels", krb5_config_string, NULL, 0 },
 428     { "egd_socket", krb5_config_string, NULL, 0 },
 429     { "encrypt", krb5_config_string, check_boolean, 0 },
 430     { "extra_addresses", krb5_config_string, NULL, 0 },
 431     { "fcache_version", krb5_config_string, check_numeric, 0 },
 432     { "fcache_strict_checking", krb5_config_string, check_boolean, 0 },
 433     { "fcc-mit-ticketflags", krb5_config_string, check_boolean, 0 },
 434     { "forward", krb5_config_string, check_boolean, 0 },
 435     { "forwardable", krb5_config_string, check_boolean, 0 },
 436     { "allow_hierarchical_capaths", krb5_config_string, check_boolean, 0 },
 437     { "host_timeout", krb5_config_string, check_time, 0 },
 438     { "http_proxy", krb5_config_string, check_host /* XXX */, 0 },
 439     { "ignore_addresses", krb5_config_string, NULL, 0 },
 440     { "k5login_authoritative", krb5_config_string, check_boolean, 0 },
 441     { "k5login_directory", krb5_config_string, NULL, 0 },
 442     { "kdc_timeout", krb5_config_string, check_time, 0 },
 443     { "kdc_timesync", krb5_config_string, check_boolean, 0 },
 444     { "kuserok", krb5_config_string, NULL, 0 },
 445     { "large_message_size", krb5_config_string, check_numeric, 0 },
 446     { "log_utc", krb5_config_string, check_boolean, 0 },
 447     { "max_retries", krb5_config_string, check_numeric, 0 },
 448     { "maximum_message_size", krb5_config_string, check_numeric, 0 },
 449     { "moduli", krb5_config_string, NULL, 0 },
 450     { "name_canon_rules", krb5_config_string, NULL, 0 },
 451     { "no-addresses", krb5_config_string, check_boolean, 0 },
 452     { "pkinit_dh_min_bits", krb5_config_string, NULL, 0 },
 453     { "plugin_dir", krb5_config_string, check_directory, 0 },
 454     { "proxiable", krb5_config_string, check_boolean, 0 },
 455     { "renew_lifetime", krb5_config_string, check_time, 0 },
 456     { "scan_interfaces", krb5_config_string, check_boolean, 0 },
 457     { "srv_lookup", krb5_config_string, check_boolean, 0 },
 458     { "srv_try_txt", krb5_config_string, check_boolean, 0 },
 459     { "ticket_lifetime", krb5_config_string, check_time, 0 },
 460     { "time_format", krb5_config_string, NULL, 0 },
 461     { "transited_realms_reject", krb5_config_string, NULL, 0 },
 462     { "use_fallback", krb5_config_string, check_boolean, 0 },
 463     { "v4_instance_resolve", krb5_config_string, check_boolean, 0 },
 464     { "v4_name_convert", krb5_config_list, v4_name_convert_entries, 0 },
 465     { "verify_ap_req_nofail", krb5_config_string, check_boolean, 0 },
 466     { "warn_pwexpire", krb5_config_string, check_time, 0 },
 467
 468     /* MIT stuff */
 469     { "permitted_enctypes", krb5_config_string, mit_entry, 0 },
 470     { "default_tgs_enctypes", krb5_config_string, mit_entry, 0 },
 471     { "default_tkt_enctypes", krb5_config_string, mit_entry, 0 },
 472     { NULL, 0, NULL, 0 }
 473 };
 474
 475 struct entry appdefaults_entries[] = {
 476     { "afslog", krb5_config_string, check_boolean, 0 },
 477     { "afs-use-524", krb5_config_string, check_524, 0 },
 478 #if 0
 479     { "anonymous", krb5_config_string, check_boolean, 0 },
 480 #endif
 481     { "encrypt", krb5_config_string, check_boolean, 0 },
 482     { "forward", krb5_config_string, check_boolean, 0 },
 483     { "forwardable", krb5_config_string, check_boolean, 0 },
 484     { "krb4_get_tickets", krb5_config_string, check_boolean, 0 },
 485     { "proxiable", krb5_config_string, check_boolean, 0 },
 486     { "renew_lifetime", krb5_config_string, check_time, 0 },
 487     { "no-addresses", krb5_config_string, check_boolean, 0 },
 488     { "pkinit_anchors", krb5_config_string, NULL, 0 },
 489     { "pkinit_pool", krb5_config_string, NULL, 0 },
 490     { "pkinit_require_eku", krb5_config_string, NULL, 0 },
 491     { "pkinit_require_hostname_match", krb5_config_string, NULL, 0 },
 492     { "pkinit_require_krbtgt_otherName", krb5_config_string, NULL, 0 },
 493     { "pkinit_revoke", krb5_config_string, NULL, 0 },
 494     { "pkinit_trustedCertifiers", krb5_config_string, check_boolean, 0 },
 495     { "pkinit_win2k", krb5_config_string, NULL, 0 },
 496     { "pkinit_win2k_require_binding", krb5_config_string, NULL, 0 },
 497     { "ticket_lifetime", krb5_config_string, check_time, 0 },
 498     { "", krb5_config_list, appdefaults_entries, 0 },
 499     { NULL, 0, NULL, 0 }
 500 };
 501
 502 struct entry realms_entries[] = {
 503     { "admin_server", krb5_config_string, check_host, 0 },
 504     { "auth_to_local", krb5_config_string, NULL, 0 },
 505     { "auth_to_local_names", krb5_config_string, NULL, 0 },
 506     { "default_domain", krb5_config_string, NULL, 0 },
 507     { "forwardable", krb5_config_string, check_boolean, 0 },
 508     { "allow_hierarchical_capaths", krb5_config_string, check_boolean, 0 },
 509     { "kdc", krb5_config_string, check_host, 0 },
 510     { "kpasswd_server", krb5_config_string, check_host, 0 },
 511     { "krb524_server", krb5_config_string, check_host, 0 },
 512     { "kx509_ca", krb5_config_string, NULL, 0 },
 513     { "kx509_include_pkinit_san", krb5_config_string, check_boolean, 0 },
 514     { "name_canon_rules", krb5_config_string, NULL, 0 },
 515     { "no-addresses", krb5_config_string, check_boolean, 0 },
 516     { "pkinit_anchors", krb5_config_string, NULL, 0 },
 517     { "pkinit_require_eku", krb5_config_string, NULL, 0 },
 518     { "pkinit_require_hostname_match", krb5_config_string, NULL, 0 },
 519     { "pkinit_require_krbtgt_otherName", krb5_config_string, NULL, 0 },
 520     { "pkinit_trustedCertifiers", krb5_config_string, check_boolean, 0 },
 521     { "pkinit_win2k", krb5_config_string, NULL, 0 },
 522     { "pkinit_win2k_require_binding", krb5_config_string, NULL, 0 },
 523     { "proxiable", krb5_config_string, check_boolean, 0 },
 524     { "renew_lifetime", krb5_config_string, check_time, 0 },
 525     { "require_initial_kca_tickets", krb5_config_string, check_boolean, 0 },
 526     { "ticket_lifetime", krb5_config_string, check_time, 0 },
 527     { "v4_domains", krb5_config_string, NULL, 0 },
 528     { "v4_instance_convert", krb5_config_list, all_strings, 0 },
 529     { "v4_name_convert", krb5_config_list, v4_name_convert_entries, 0 },
 530     { "warn_pwexpire", krb5_config_string, check_time, 0 },
 531     { "win2k_pkinit", krb5_config_string, NULL, 0 },
 532
 533     /* MIT stuff */
 534     { "admin_keytab", krb5_config_string, mit_entry, 0 },
 535     { "acl_file", krb5_config_string, mit_entry, 0 },
 536     { "database_name", krb5_config_string, mit_entry, 0 },
 537     { "default_principal_expiration", krb5_config_string, mit_entry, 0 },
 538     { "default_principal_flags", krb5_config_string, mit_entry, 0 },
 539     { "dict_file", krb5_config_string, mit_entry, 0 },
 540     { "kadmind_port", krb5_config_string, mit_entry, 0 },
 541     { "kpasswd_port", krb5_config_string, mit_entry, 0 },
 542     { "master_kdc", krb5_config_string, mit_entry, 0 },
 543     { "master_key_name", krb5_config_string, mit_entry, 0 },
 544     { "master_key_type", krb5_config_string, mit_entry, 0 },
 545     { "key_stash_file", krb5_config_string, mit_entry, 0 },
 546     { "max_life", krb5_config_string, mit_entry, 0 },
 547     { "max_renewable_life", krb5_config_string, mit_entry, 0 },
 548     { "supported_enctypes", krb5_config_string, mit_entry, 0 },
 549     { NULL, 0, NULL, 0 }
 550 };
 551
 552 struct entry realms_foobar[] = {
 553     { "", krb5_config_list, realms_entries, 0 },
 554     { NULL, 0, NULL, 0 }
 555 };
 556
 557
 558 struct entry kdc_database_entries[] = {
 559     { "acl_file", krb5_config_string, NULL, 0 },
 560     { "dbname", krb5_config_string, NULL, 0 },
 561     { "log_file", krb5_config_string, NULL, 0 },
 562     { "mkey_file", krb5_config_string, NULL, 0 },
 563     { "realm", krb5_config_string, NULL, 0 },
 564     { NULL, 0, NULL, 0 }
 565 };
 566
 567 struct entry kdc_entries[] = {
 568     { "addresses", krb5_config_string, NULL, 0 },
 569     { "allow-anonymous", krb5_config_string, check_boolean, 0 },
 570     { "allow-null-ticket-addresses", krb5_config_string, check_boolean, 0 },
 571     { "check-ticket-addresses", krb5_config_string, check_boolean, 0 },
 572     { "database", krb5_config_list, kdc_database_entries, 0 },
 573     { "detach", krb5_config_string, check_boolean, 0 },
 574     { "digests_allowed", krb5_config_string, NULL, 0 },
 575     { "disable-des", krb5_config_string, check_boolean, 0 },
 576     { "enable-524", krb5_config_string, check_boolean, 0 },
 577     { "enable-digest", krb5_config_string, check_boolean, 0 },
 578     { "enable-kaserver", krb5_config_string, check_boolean, 1 },
 579     { "enable-kerberos4", krb5_config_string, check_boolean, 1 },
 580     { "enable-kx509", krb5_config_string, check_boolean, 0 },
 581     { "enable-http", krb5_config_string, check_boolean, 0 },
 582     { "enable-pkinit", krb5_config_string, check_boolean, 0 },
 583     { "encode_as_rep_as_tgs_rep", krb5_config_string, check_boolean, 0 },
 584     { "enforce-transited-policy", krb5_config_string, NULL, 1 },
 585     { "hdb-ldap-create-base", krb5_config_string, NULL, 0 },
 586     { "iprop-acl", krb5_config_string, NULL, 0 },
 587     { "iprop-stats", krb5_config_string, NULL, 0 },
 588     { "kdc-request-log", krb5_config_string, NULL, 0 },
 589     { "kdc_warn_pwexpire", krb5_config_string, check_time, 0 },
 590     { "key-file", krb5_config_string, NULL, 0 },
 591     { "kx509_ca", krb5_config_string, NULL, 0 },
 592     { "kx509_include_pkinit_san", krb5_config_string, check_boolean, 0 },
 593     { "kx509_template", krb5_config_string, NULL, 0 },
 594     { "logging", krb5_config_string, check_log, 0 },
 595     { "max-kdc-datagram-reply-length", krb5_config_string, check_bytes, 0 },
 596     { "max-request", krb5_config_string, check_bytes, 0 },
 597     { "num-kdc-processes", krb5_config_string, check_numeric, 0 },
 598     { "pkinit_allow_proxy_certificate", krb5_config_string, check_boolean, 0 },
 599     { "pkinit_anchors", krb5_config_string, NULL, 0 },
 600     { "pkinit_dh_min_bits", krb5_config_string, check_numeric, 0 },
 601     { "pkinit_identity", krb5_config_string, NULL, 0 },
 602     { "pkinit_kdc_friendly_name", krb5_config_string, NULL, 0 },
 603     { "pkinit_kdc_ocsp", krb5_config_string, NULL, 0 },
 604     { "pkinit_mappings_file", krb5_config_string, NULL, 0 },
 605     { "pkinit_pool", krb5_config_string, NULL, 0 },
 606     { "pkinit_principal_in_certificate", krb5_config_string, check_boolean, 0 },
 607     { "pkinit_revoke", krb5_config_string, NULL, 0 },
 608     { "pkinit_win2k_require_binding", krb5_config_string, check_boolean, 0 },
 609     { "ports", krb5_config_string, NULL, 0 },
 610     { "preauth-use-strongest-session-key", krb5_config_string, check_boolean, 0 },
 611     { "require_initial_kca_tickets", krb5_config_string, check_boolean, 0 },
 612     { "require-preauth", krb5_config_string, check_boolean, 0 },
 613     { "strict-nametypes", krb5_config_string, check_boolean, 0 },
 614     { "svc-use-strongest-session-key", krb5_config_string, check_boolean, 0 },
 615     { "tgt-use-strongest-session-key", krb5_config_string, check_boolean, 0 },
 616     { "transited-policy", krb5_config_string, NULL, 0 },
 617     { "use_2b", krb5_config_list, NULL, 0 },
 618     { "use-strongest-server-key", krb5_config_string, check_boolean, 0 },
 619     { "v4_realm", krb5_config_string, NULL, 0 },
 620     { NULL, 0, NULL, 0 }
 621 };
 622
 623 struct entry kadmin_entries[] = {
 624     { "allow_self_change_password", krb5_config_string, check_boolean, 0 },
 625     { "default_keys", krb5_config_string, NULL, 0 },
 626     { "password_lifetime", krb5_config_string, check_time, 0 },
 627     { "plugin_dir", krb5_config_string, check_directory, 0 },
 628     { "require-preauth", krb5_config_string, check_boolean, 0 },
 629     { "save-password", krb5_config_string, check_boolean, 0 },
 630     { "use_v4_salt", krb5_config_string, NULL, 0 },
 631     { NULL, 0, NULL, 0 }
 632 };
 633 struct entry log_strings[] = {
 634     { "", krb5_config_string, check_log, 0 },
 635     { NULL, 0, NULL, 0 }
 636 };
 637
 638
 639 /* MIT stuff */
 640 struct entry kdcdefaults_entries[] = {
 641     { "kdc_ports", krb5_config_string, mit_entry, 0 },
 642     { "v4_mode", krb5_config_string, mit_entry, 0 },
 643     { NULL, 0, NULL, 0 }
 644 };
 645
 646 struct entry capaths_entries[] = {
 647     { "", krb5_config_list, all_strings, 0 },
 648     { NULL, 0, NULL, 0 }
 649 };
 650
 651 struct entry kcm_entries[] = {
 652     { "detach", krb5_config_string, check_boolean, 0 },
 653     { "disallow-getting-krbtgt", krb5_config_string, check_boolean, 0 },
 654     { "logging", krb5_config_string, NULL, 0 },
 655     { "max-request", krb5_config_string, NULL, 0 },
 656     { "system_ccache", krb5_config_string, NULL, 0 },
 657     { NULL, 0, NULL, 0 }
 658 };
 659
 660 struct entry password_quality_entries[] = {
 661     { "enforce_on_admin_set", krb5_config_string, check_boolean, 0 },
 662     { "check_function", krb5_config_string, NULL, 0 },
 663     { "check_library", krb5_config_string, NULL, 0 },
 664     { "external_program", krb5_config_string, NULL, 0 },
 665     { "min_classes", krb5_config_string, check_numeric, 0 },
 666     { "min_length", krb5_config_string, check_numeric, 0 },
 667     { "policies", krb5_config_string, NULL, 0 },
 668     { "policy_libraries", krb5_config_string, NULL, 0 },
 669     { "", krb5_config_list, all_strings, 0 },
 670     { NULL, 0, NULL, 0 }
 671 };
 672
 673 struct entry toplevel_sections[] = {
 674     { "appdefaults", krb5_config_list, appdefaults_entries, 0 },
 675     { "capaths", krb5_config_list, capaths_entries, 0 },
 676     { "domain_realm", krb5_config_list, all_strings, 0 },
 677     { "gssapi", krb5_config_list, NULL, 0 },
 678     { "kadmin", krb5_config_list, kadmin_entries, 0 },
 679     { "kcm", krb5_config_list, kcm_entries, 0 },
 680     { "kdc", krb5_config_list, kdc_entries, 0 },
 681     { "libdefaults" , krb5_config_list, libdefaults_entries, 0 },
 682     { "logging", krb5_config_list, log_strings, 0 },
 683     { "password_quality", krb5_config_list, password_quality_entries, 0 },
 684     { "realms", krb5_config_list, realms_foobar, 0 },
 685
 686     /* MIT stuff */
 687     { "kdcdefaults", krb5_config_list, kdcdefaults_entries, 0 },
 688     { NULL, 0, NULL, 0 }
 689 };
 690
 691
 692 static int
 693 check_section(krb5_context context, const char *path, krb5_config_section *cf,
 694               struct entry *entries)
 695 {
 696     int error = 0;
 697     krb5_config_section *p;
 698     struct entry *e;
 699
 700     char *local;
 701
 702     for(p = cf; p != NULL; p = p->next) {
 703         local = NULL;
 704         if (asprintf(&local, "%s/%s", path, p->name) < 0 || local == NULL)
 705             errx(1, "out of memory");
 706         for(e = entries; e->name != NULL; e++) {
 707             if(*e->name == '\0' || strcmp(e->name, p->name) == 0) {
 708                 if(e->type != p->type) {
 709                     krb5_warnx(context, "%s: unknown or wrong type", local);
 710                     error |= 1;
 711                 } else if(p->type == krb5_config_string && e->check_data != NULL) {
 712                     error |= (*(check_func_t)e->check_data)(context, local, p->u.string);
 713                 } else if(p->type == krb5_config_list && e->check_data != NULL) {
 714                     error |= check_section(context, local, p->u.list, e->check_data);
 715                 }
 716                 if(e->deprecated) {
 717                     krb5_warnx(context, "%s: is a deprecated entry", local);
 718                     error |= 1;
 719                 }
 720                 break;
 721             }
 722         }
 723         if(e->name == NULL) {
 724             krb5_warnx(context, "%s: unknown entry", local);
 725             error |= 1;
 726         }
 727         free(local);
 728     }
 729     return error;
 730 }
 731
 732
 733 static void
 734 dumpconfig(int level, krb5_config_section *top)
 735 {
 736     krb5_config_section *x;
 737     for(x = top; x; x = x->next) {
 738         switch(x->type) {
 739         case krb5_config_list:
 740             if(level == 0) {
 741                 printf("[%s]\n", x->name);
 742             } else {
 743                 printf("%*s%s = {\n", 4 * level, " ", x->name);
 744             }
 745             dumpconfig(level + 1, x->u.list);
 746             if(level > 0)
 747                 printf("%*s}\n", 4 * level, " ");
 748             break;
 749         case krb5_config_string:
 750             printf("%*s%s = %s\n", 4 * level, " ", x->name, x->u.string);
 751             break;
 752         }
 753     }
 754 }
 755
 756 int
 757 main(int argc, char **argv)
 758 {
 759     krb5_context context;
 760     krb5_error_code ret;
 761     krb5_config_section *tmp_cf;
 762     int optidx = 0;
 763
 764     setprogname (argv[0]);
 765
 766     ret = krb5_init_context(&context);
 767     if (ret == KRB5_CONFIG_BADFORMAT)
 768         errx (1, "krb5_init_context failed to parse configuration file");
 769     else if (ret)
 770         errx (1, "krb5_init_context failed with %d", ret);
 771
 772     if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
 773         usage(1);
 774
 775     if (help_flag)
 776         usage (0);
 777
 778     if(version_flag){
 779         print_version(NULL);
 780         exit(0);
 781     }
 782
 783     argc -= optidx;
 784     argv += optidx;
 785
 786     tmp_cf = NULL;
 787     if(argc == 0)
 788         krb5_get_default_config_files(&argv);
 789
 790     while(*argv) {
 791         ret = krb5_config_parse_file_multi(context, *argv, &tmp_cf);
 792         if (ret != 0)
 793             krb5_warn (context, ret, "krb5_config_parse_file");
 794         argv++;
 795     }
 796
 797     if(dumpconfig_flag)
 798         dumpconfig(0, tmp_cf);
 799
 800     return check_section(context, "", tmp_cf, toplevel_sections);
 801 }