2 * Copyright (c) 1999 - 2005 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
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.
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.
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
34 #include "krb5_locl.h"
36 #include <parse_bytes.h>
39 /* verify krb5.conf */
41 static int dumpconfig_flag = 0;
42 static int version_flag = 0;
43 static int help_flag = 0;
44 static int warn_mit_syntax_flag = 0;
46 static struct getargs args[] = {
47 {"dumpconfig", 0, arg_flag, &dumpconfig_flag,
48 "show the parsed config files", NULL },
49 {"warn-mit-syntax", 0, arg_flag, &warn_mit_syntax_flag,
50 "show the parsed config files", NULL },
51 {"version", 0, arg_flag, &version_flag,
52 "print version", NULL },
53 {"help", 0, arg_flag, &help_flag,
61 sizeof(args)/sizeof(*args),
68 check_bytes(krb5_context context, const char *path, char *data)
70 if(parse_bytes(data, NULL) == -1) {
71 krb5_warnx(context, "%s: failed to parse \"%s\" as size", path, data);
78 check_time(krb5_context context, const char *path, char *data)
80 if(parse_time(data, NULL) == -1) {
81 krb5_warnx(context, "%s: failed to parse \"%s\" as time", path, data);
88 check_numeric(krb5_context context, const char *path, char *data)
92 v = strtol(data, &end, 0);
94 if ((v == LONG_MIN || v == LONG_MAX) && errno != 0) {
95 krb5_warnx(context, "%s: over/under flow for \"%s\"",
100 krb5_warnx(context, "%s: failed to parse \"%s\" as a number",
108 check_boolean(krb5_context context, const char *path, char *data)
112 if(strcasecmp(data, "yes") == 0 ||
113 strcasecmp(data, "true") == 0 ||
114 strcasecmp(data, "no") == 0 ||
115 strcasecmp(data, "false") == 0)
117 v = strtol(data, &end, 0);
119 krb5_warnx(context, "%s: failed to parse \"%s\" as a boolean",
124 krb5_warnx(context, "%s: numeric value \"%s\" is treated as \"true\"",
130 check_524(krb5_context context, const char *path, char *data)
132 if(strcasecmp(data, "yes") == 0 ||
133 strcasecmp(data, "no") == 0 ||
134 strcasecmp(data, "2b") == 0 ||
135 strcasecmp(data, "local") == 0)
138 krb5_warnx(context, "%s: didn't contain a valid option `%s'",
144 check_host(krb5_context context, const char *path, char *data)
148 const char *p = data;
149 struct addrinfo hints;
155 hints.ai_family = PF_UNSPEC;
156 hints.ai_socktype = 0;
157 hints.ai_protocol = 0;
159 hints.ai_addrlen = 0;
160 hints.ai_canonname = NULL;
161 hints.ai_addr = NULL;
162 hints.ai_next = NULL;
164 /* XXX data could be a list of hosts that this code can't handle */
165 /* XXX copied from krbhst.c */
166 if(strncmp(p, "http://", 7) == 0){
168 hints.ai_socktype = SOCK_STREAM;
169 strlcpy(service, "http", sizeof(service));
171 } else if(strncmp(p, "http/", 5) == 0) {
173 hints.ai_socktype = SOCK_STREAM;
174 strlcpy(service, "http", sizeof(service));
176 }else if(strncmp(p, "tcp/", 4) == 0){
178 hints.ai_socktype = SOCK_STREAM;
179 strlcpy(service, "kerberos", sizeof(service));
181 } else if(strncmp(p, "udp/", 4) == 0) {
183 hints.ai_socktype = SOCK_DGRAM;
184 strlcpy(service, "kerberos", sizeof(service));
187 hints.ai_socktype = SOCK_DGRAM;
188 strlcpy(service, "kerberos", sizeof(service));
191 if(strsep_copy(&p, ":", hostname, sizeof(hostname)) < 0) {
194 hostname[strcspn(hostname, "/")] = '\0';
197 int tmp = strtol(p, &end, 0);
199 krb5_warnx(context, "%s: failed to parse port number in %s",
204 snprintf(service, sizeof(service), "%u", defport);
206 ret = getaddrinfo(hostname, service, &hints, &ai);
207 if(ret == EAI_SERVICE && !isdigit((unsigned char)service[0])) {
208 snprintf(service, sizeof(service), "%u", defport);
209 ret = getaddrinfo(hostname, service, &hints, &ai);
212 krb5_warnx(context, "%s: %s (%s)", path, gai_strerror(ret), hostname);
219 mit_entry(krb5_context context, const char *path, char *data)
221 if (warn_mit_syntax_flag)
222 krb5_warnx(context, "%s is only used by MIT Kerberos", path);
231 #define L(X) { #X, LOG_ ## X }
233 static struct s2i syslogvals[] = {
278 find_value(const char *s, struct s2i *table)
280 while(table->s && strcasecmp(table->s, s))
286 check_log(krb5_context context, const char *path, char *data)
288 /* XXX sync with log.c */
289 int min = 0, max = -1, n;
291 const char *p = data;
293 n = sscanf(p, "%d%c%d/", &min, &c, &max);
307 krb5_warnx(context, "%s: failed to parse \"%s\"", path, data);
312 if(strcmp(p, "STDERR") == 0 ||
313 strcmp(p, "CONSOLE") == 0 ||
314 (strncmp(p, "FILE", 4) == 0 && (p[4] == ':' || p[4] == '=')) ||
315 (strncmp(p, "DEVICE", 6) == 0 && p[6] == '='))
317 if(strncmp(p, "SYSLOG", 6) == 0){
319 char severity[128] = "";
320 char facility[128] = "";
324 if(strsep_copy(&p, ":", severity, sizeof(severity)) != -1)
325 strsep_copy(&p, ":", facility, sizeof(facility));
326 if(*severity == '\0')
327 strlcpy(severity, "ERR", sizeof(severity));
328 if(*facility == '\0')
329 strlcpy(facility, "AUTH", sizeof(facility));
330 if(find_value(severity, syslogvals) == -1) {
331 krb5_warnx(context, "%s: unknown syslog facility \"%s\"",
335 if(find_value(severity, syslogvals) == -1) {
336 krb5_warnx(context, "%s: unknown syslog severity \"%s\"",
342 krb5_warnx(context, "%s: unknown log type: \"%s\"", path, data);
347 typedef int (*check_func_t)(krb5_context, const char*, char*);
355 struct entry all_strings[] = {
356 { "", krb5_config_string, NULL },
360 struct entry all_boolean[] = {
361 { "", krb5_config_string, check_boolean },
366 struct entry v4_name_convert_entries[] = {
367 { "host", krb5_config_list, all_strings },
368 { "plain", krb5_config_list, all_strings },
372 struct entry libdefaults_entries[] = {
373 { "accept_null_addresses", krb5_config_string, check_boolean },
374 { "allow_weak_crypto", krb5_config_string, check_boolean },
375 { "capath", krb5_config_list, all_strings, 1 },
376 { "check_pac", krb5_config_string, check_boolean },
377 { "clockskew", krb5_config_string, check_time },
378 { "date_format", krb5_config_string, NULL },
379 { "default_cc_name", krb5_config_string, NULL },
380 { "default_etypes", krb5_config_string, NULL },
381 { "default_etypes_des", krb5_config_string, NULL },
382 { "default_keytab_modify_name", krb5_config_string, NULL },
383 { "default_keytab_name", krb5_config_string, NULL },
384 { "default_realm", krb5_config_string, NULL },
385 { "dns_canonize_hostname", krb5_config_string, check_boolean },
386 { "dns_proxy", krb5_config_string, NULL },
387 { "dns_lookup_kdc", krb5_config_string, check_boolean },
388 { "dns_lookup_realm", krb5_config_string, check_boolean },
389 { "dns_lookup_realm_labels", krb5_config_string, NULL },
390 { "egd_socket", krb5_config_string, NULL },
391 { "encrypt", krb5_config_string, check_boolean },
392 { "extra_addresses", krb5_config_string, NULL },
393 { "fcache_version", krb5_config_string, check_numeric },
394 { "fcc-mit-ticketflags", krb5_config_string, check_boolean },
395 { "forward", krb5_config_string, check_boolean },
396 { "forwardable", krb5_config_string, check_boolean },
397 { "http_proxy", krb5_config_string, check_host /* XXX */ },
398 { "ignore_addresses", krb5_config_string, NULL },
399 { "kdc_timeout", krb5_config_string, check_time },
400 { "kdc_timesync", krb5_config_string, check_boolean },
401 { "log_utc", krb5_config_string, check_boolean },
402 { "maxretries", krb5_config_string, check_numeric },
403 { "scan_interfaces", krb5_config_string, check_boolean },
404 { "srv_lookup", krb5_config_string, check_boolean },
405 { "srv_try_txt", krb5_config_string, check_boolean },
406 { "ticket_lifetime", krb5_config_string, check_time },
407 { "time_format", krb5_config_string, NULL },
408 { "transited_realms_reject", krb5_config_string, NULL },
409 { "no-addresses", krb5_config_string, check_boolean },
410 { "v4_instance_resolve", krb5_config_string, check_boolean },
411 { "v4_name_convert", krb5_config_list, v4_name_convert_entries },
412 { "verify_ap_req_nofail", krb5_config_string, check_boolean },
413 { "max_retries", krb5_config_string, check_time },
414 { "renew_lifetime", krb5_config_string, check_time },
415 { "proxiable", krb5_config_string, check_boolean },
416 { "warn_pwexpire", krb5_config_string, check_time },
418 { "permitted_enctypes", krb5_config_string, mit_entry },
419 { "default_tgs_enctypes", krb5_config_string, mit_entry },
420 { "default_tkt_enctypes", krb5_config_string, mit_entry },
424 struct entry appdefaults_entries[] = {
425 { "afslog", krb5_config_string, check_boolean },
426 { "afs-use-524", krb5_config_string, check_524 },
427 { "encrypt", krb5_config_string, check_boolean },
428 { "forward", krb5_config_string, check_boolean },
429 { "forwardable", krb5_config_string, check_boolean },
430 { "proxiable", krb5_config_string, check_boolean },
431 { "ticket_lifetime", krb5_config_string, check_time },
432 { "renew_lifetime", krb5_config_string, check_time },
433 { "no-addresses", krb5_config_string, check_boolean },
434 { "krb4_get_tickets", krb5_config_string, check_boolean },
435 { "pkinit_anchors", krb5_config_string, NULL },
436 { "pkinit_win2k", krb5_config_string, NULL },
437 { "pkinit_win2k_require_binding", krb5_config_string, NULL },
438 { "pkinit_require_eku", krb5_config_string, NULL },
439 { "pkinit_require_krbtgt_otherName", krb5_config_string, NULL },
440 { "pkinit_require_hostname_match", krb5_config_string, NULL },
442 { "anonymous", krb5_config_string, check_boolean },
444 { "", krb5_config_list, appdefaults_entries },
448 struct entry realms_entries[] = {
449 { "forwardable", krb5_config_string, check_boolean },
450 { "proxiable", krb5_config_string, check_boolean },
451 { "ticket_lifetime", krb5_config_string, check_time },
452 { "renew_lifetime", krb5_config_string, check_time },
453 { "warn_pwexpire", krb5_config_string, check_time },
454 { "kdc", krb5_config_string, check_host },
455 { "admin_server", krb5_config_string, check_host },
456 { "kpasswd_server", krb5_config_string, check_host },
457 { "krb524_server", krb5_config_string, check_host },
458 { "v4_name_convert", krb5_config_list, v4_name_convert_entries },
459 { "v4_instance_convert", krb5_config_list, all_strings },
460 { "v4_domains", krb5_config_string, NULL },
461 { "default_domain", krb5_config_string, NULL },
462 { "win2k_pkinit", krb5_config_string, NULL },
464 { "admin_keytab", krb5_config_string, mit_entry },
465 { "acl_file", krb5_config_string, mit_entry },
466 { "dict_file", krb5_config_string, mit_entry },
467 { "kadmind_port", krb5_config_string, mit_entry },
468 { "kpasswd_port", krb5_config_string, mit_entry },
469 { "master_key_name", krb5_config_string, mit_entry },
470 { "master_key_type", krb5_config_string, mit_entry },
471 { "key_stash_file", krb5_config_string, mit_entry },
472 { "max_life", krb5_config_string, mit_entry },
473 { "max_renewable_life", krb5_config_string, mit_entry },
474 { "default_principal_expiration", krb5_config_string, mit_entry },
475 { "default_principal_flags", krb5_config_string, mit_entry },
476 { "supported_enctypes", krb5_config_string, mit_entry },
477 { "database_name", krb5_config_string, mit_entry },
481 struct entry realms_foobar[] = {
482 { "", krb5_config_list, realms_entries },
487 struct entry kdc_database_entries[] = {
488 { "realm", krb5_config_string, NULL },
489 { "dbname", krb5_config_string, NULL },
490 { "mkey_file", krb5_config_string, NULL },
491 { "acl_file", krb5_config_string, NULL },
492 { "log_file", krb5_config_string, NULL },
496 struct entry kdc_entries[] = {
497 { "database", krb5_config_list, kdc_database_entries },
498 { "key-file", krb5_config_string, NULL },
499 { "logging", krb5_config_string, check_log },
500 { "max-request", krb5_config_string, check_bytes },
501 { "require-preauth", krb5_config_string, check_boolean },
502 { "ports", krb5_config_string, NULL },
503 { "addresses", krb5_config_string, NULL },
504 { "enable-kerberos4", krb5_config_string, check_boolean },
505 { "enable-524", krb5_config_string, check_boolean },
506 { "enable-http", krb5_config_string, check_boolean },
507 { "check-ticket-addresses", krb5_config_string, check_boolean },
508 { "allow-null-ticket-addresses", krb5_config_string, check_boolean },
509 { "allow-anonymous", krb5_config_string, check_boolean },
510 { "v4_realm", krb5_config_string, NULL },
511 { "enable-kaserver", krb5_config_string, check_boolean, 1 },
512 { "encode_as_rep_as_tgs_rep", krb5_config_string, check_boolean },
513 { "kdc_warn_pwexpire", krb5_config_string, check_time },
514 { "use_2b", krb5_config_list, NULL },
515 { "enable-pkinit", krb5_config_string, check_boolean },
516 { "pkinit_identity", krb5_config_string, NULL },
517 { "pkinit_anchors", krb5_config_string, NULL },
518 { "pkinit_pool", krb5_config_string, NULL },
519 { "pkinit_revoke", krb5_config_string, NULL },
520 { "pkinit_kdc_ocsp", krb5_config_string, NULL },
521 { "pkinit_principal_in_certificate", krb5_config_string, NULL },
522 { "pkinit_dh_min_bits", krb5_config_string, NULL },
523 { "pkinit_allow_proxy_certificate", krb5_config_string, NULL },
524 { "hdb-ldap-create-base", krb5_config_string, NULL },
525 { "v4-realm", krb5_config_string, NULL },
529 struct entry kadmin_entries[] = {
530 { "password_lifetime", krb5_config_string, check_time },
531 { "default_keys", krb5_config_string, NULL },
532 { "use_v4_salt", krb5_config_string, NULL },
533 { "require-preauth", krb5_config_string, check_boolean },
536 struct entry log_strings[] = {
537 { "", krb5_config_string, check_log },
543 struct entry kdcdefaults_entries[] = {
544 { "kdc_ports", krb5_config_string, mit_entry },
545 { "v4_mode", krb5_config_string, mit_entry },
549 struct entry capaths_entries[] = {
550 { "", krb5_config_list, all_strings },
554 struct entry password_quality_entries[] = {
555 { "policies", krb5_config_string, NULL },
556 { "external_program", krb5_config_string, NULL },
557 { "min_classes", krb5_config_string, check_numeric },
558 { "min_length", krb5_config_string, check_numeric },
559 { "", krb5_config_list, all_strings },
563 struct entry toplevel_sections[] = {
564 { "libdefaults" , krb5_config_list, libdefaults_entries },
565 { "realms", krb5_config_list, realms_foobar },
566 { "domain_realm", krb5_config_list, all_strings },
567 { "logging", krb5_config_list, log_strings },
568 { "kdc", krb5_config_list, kdc_entries },
569 { "kadmin", krb5_config_list, kadmin_entries },
570 { "appdefaults", krb5_config_list, appdefaults_entries },
571 { "gssapi", krb5_config_list, NULL },
572 { "capaths", krb5_config_list, capaths_entries },
573 { "password_quality", krb5_config_list, password_quality_entries },
575 { "kdcdefaults", krb5_config_list, kdcdefaults_entries },
581 check_section(krb5_context context, const char *path, krb5_config_section *cf,
582 struct entry *entries)
585 krb5_config_section *p;
590 for(p = cf; p != NULL; p = p->next) {
592 if (asprintf(&local, "%s/%s", path, p->name) < 0 || local == NULL)
593 errx(1, "out of memory");
594 for(e = entries; e->name != NULL; e++) {
595 if(*e->name == '\0' || strcmp(e->name, p->name) == 0) {
596 if(e->type != p->type) {
597 krb5_warnx(context, "%s: unknown or wrong type", local);
599 } else if(p->type == krb5_config_string && e->check_data != NULL) {
600 error |= (*(check_func_t)e->check_data)(context, local, p->u.string);
601 } else if(p->type == krb5_config_list && e->check_data != NULL) {
602 error |= check_section(context, local, p->u.list, e->check_data);
605 krb5_warnx(context, "%s: is a deprecated entry", local);
611 if(e->name == NULL) {
612 krb5_warnx(context, "%s: unknown entry", local);
622 dumpconfig(int level, krb5_config_section *top)
624 krb5_config_section *x;
625 for(x = top; x; x = x->next) {
627 case krb5_config_list:
629 printf("[%s]\n", x->name);
631 printf("%*s%s = {\n", 4 * level, " ", x->name);
633 dumpconfig(level + 1, x->u.list);
635 printf("%*s}\n", 4 * level, " ");
637 case krb5_config_string:
638 printf("%*s%s = %s\n", 4 * level, " ", x->name, x->u.string);
645 main(int argc, char **argv)
647 krb5_context context;
649 krb5_config_section *tmp_cf;
652 setprogname (argv[0]);
654 ret = krb5_init_context(&context);
655 if (ret == KRB5_CONFIG_BADFORMAT)
656 errx (1, "krb5_init_context failed to parse configuration file");
658 errx (1, "krb5_init_context failed with %d", ret);
660 if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
676 krb5_get_default_config_files(&argv);
679 ret = krb5_config_parse_file_multi(context, *argv, &tmp_cf);
681 krb5_warn (context, ret, "krb5_config_parse_file");
686 dumpconfig(0, tmp_cf);
688 return check_section(context, "", tmp_cf, toplevel_sections);