1 /* $NetBSD: verify_krb5_conf.c,v 1.2 2017/01/28 21:31:49 christos Exp $ */
2
3 /*
4 * Copyright (c) 1999 - 2005 Kungliga Tekniska Högskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of the Institute nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #include "krb5_locl.h"
37 #include <krb5/getarg.h>
38 #include <krb5/parse_bytes.h>
39 #include <err.h>
40
41 /* verify krb5.conf */
42
43 static int dumpconfig_flag = 0;
44 static int version_flag = 0;
45 static int help_flag = 0;
46 static int warn_mit_syntax_flag = 0;
47
48 static struct getargs args[] = {
49 {"dumpconfig", 0, arg_flag, &dumpconfig_flag,
50 "show the parsed config files", NULL },
51 {"warn-mit-syntax", 0, arg_flag, &warn_mit_syntax_flag,
52 "show the parsed config files", NULL },
53 {"version", 0, arg_flag, &version_flag,
54 "print version", NULL },
55 {"help", 0, arg_flag, &help_flag,
56 NULL, NULL }
57 };
58
59 static void
usage(int ret)60 usage (int ret)
61 {
62 arg_printusage (args,
63 sizeof(args)/sizeof(*args),
64 NULL,
65 "[config-file]");
66 exit (ret);
67 }
68
69 static int
check_bytes(krb5_context context,const char * path,char * data)70 check_bytes(krb5_context context, const char *path, char *data)
71 {
72 if(parse_bytes(data, NULL) == -1) {
73 krb5_warnx(context, "%s: failed to parse \"%s\" as size", path, data);
74 return 1;
75 }
76 return 0;
77 }
78
79 static int
check_time(krb5_context context,const char * path,char * data)80 check_time(krb5_context context, const char *path, char *data)
81 {
82 if(parse_time(data, NULL) == -1) {
83 krb5_warnx(context, "%s: failed to parse \"%s\" as time", path, data);
84 return 1;
85 }
86 return 0;
87 }
88
89 static int
check_numeric(krb5_context context,const char * path,char * data)90 check_numeric(krb5_context context, const char *path, char *data)
91 {
92 long v;
93 char *end;
94 v = strtol(data, &end, 0);
95
96 if ((v == LONG_MIN || v == LONG_MAX) && errno != 0) {
97 krb5_warnx(context, "%s: over/under flow for \"%s\"",
98 path, data);
99 return 1;
100 }
101 if(*end != '\0') {
102 krb5_warnx(context, "%s: failed to parse \"%s\" as a number",
103 path, data);
104 return 1;
105 }
106 return 0;
107 }
108
109 static int
check_boolean(krb5_context context,const char * path,char * data)110 check_boolean(krb5_context context, const char *path, char *data)
111 {
112 long int v;
113 char *end;
114 if(strcasecmp(data, "yes") == 0 ||
115 strcasecmp(data, "true") == 0 ||
116 strcasecmp(data, "no") == 0 ||
117 strcasecmp(data, "false") == 0)
118 return 0;
119 v = strtol(data, &end, 0);
120 if(*end != '\0') {
121 krb5_warnx(context, "%s: failed to parse \"%s\" as a boolean",
122 path, data);
123 return 1;
124 }
125 if(v != 0 && v != 1)
126 krb5_warnx(context, "%s: numeric value \"%s\" is treated as \"true\"",
127 path, data);
128 return 0;
129 }
130
131 static int
check_524(krb5_context context,const char * path,char * data)132 check_524(krb5_context context, const char *path, char *data)
133 {
134 if(strcasecmp(data, "yes") == 0 ||
135 strcasecmp(data, "no") == 0 ||
136 strcasecmp(data, "2b") == 0 ||
137 strcasecmp(data, "local") == 0)
138 return 0;
139
140 krb5_warnx(context, "%s: didn't contain a valid option `%s'",
141 path, data);
142 return 1;
143 }
144
145 static int
check_host(krb5_context context,const char * path,char * data)146 check_host(krb5_context context, const char *path, char *data)
147 {
148 int ret;
149 char hostname[128];
150 const char *p = data;
151 struct addrinfo hints;
152 char service[32];
153 int defport;
154 struct addrinfo *ai;
155
156 hints.ai_flags = 0;
157 hints.ai_family = PF_UNSPEC;
158 hints.ai_socktype = 0;
159 hints.ai_protocol = 0;
160
161 hints.ai_addrlen = 0;
162 hints.ai_canonname = NULL;
163 hints.ai_addr = NULL;
164 hints.ai_next = NULL;
165
166 /* XXX data could be a list of hosts that this code can't handle */
167 /* XXX copied from krbhst.c */
168 if (strncmp(p, "http://", 7) == 0){
169 p += 7;
170 hints.ai_socktype = SOCK_STREAM;
171 strlcpy(service, "http", sizeof(service));
172 defport = 80;
173 } else if (strncmp(p, "http/", 5) == 0) {
174 p += 5;
175 hints.ai_socktype = SOCK_STREAM;
176 strlcpy(service, "http", sizeof(service));
177 defport = 80;
178 } else if (strncmp(p, "tcp/", 4) == 0){
179 p += 4;
180 hints.ai_socktype = SOCK_STREAM;
181 strlcpy(service, "kerberos", sizeof(service));
182 defport = 88;
183 } else if (strncmp(p, "udp/", 4) == 0) {
184 p += 4;
185 hints.ai_socktype = SOCK_DGRAM;
186 strlcpy(service, "kerberos", sizeof(service));
187 defport = 88;
188 } else {
189 hints.ai_socktype = SOCK_DGRAM;
190 strlcpy(service, "kerberos", sizeof(service));
191 defport = 88;
192 }
193 if (strsep_copy(&p, ":", hostname, sizeof(hostname)) < 0) {
194 return 1;
195 }
196 hostname[strcspn(hostname, "/")] = '\0';
197 if (p != NULL) {
198 char *end;
199 int tmp = strtol(p, &end, 0);
200 if (end == p) {
201 krb5_warnx(context, "%s: failed to parse port number in %s",
202 path, data);
203 return 1;
204 }
205 defport = tmp;
206 snprintf(service, sizeof(service), "%u", defport);
207 }
208 ret = getaddrinfo(hostname, service, &hints, &ai);
209 if (ret == EAI_SERVICE && !isdigit((unsigned char)service[0])) {
210 snprintf(service, sizeof(service), "%u", defport);
211 ret = getaddrinfo(hostname, service, &hints, &ai);
212 }
213 if (ret != 0) {
214 krb5_warnx(context, "%s: %s (%s)", path, gai_strerror(ret), hostname);
215 return 1;
216 }
217 freeaddrinfo(ai);
218 return 0;
219 }
220
221 static int
mit_entry(krb5_context context,const char * path,char * data)222 mit_entry(krb5_context context, const char *path, char *data)
223 {
224 if (warn_mit_syntax_flag)
225 krb5_warnx(context, "%s is only used by MIT Kerberos", path);
226 return 0;
227 }
228
229 struct s2i {
230 const char *s;
231 int val;
232 };
233
234 #define L(X) { #X, LOG_ ## X }
235
236 static struct s2i syslogvals[] = {
237 /* severity */
238 L(EMERG),
239 L(ALERT),
240 L(CRIT),
241 L(ERR),
242 L(WARNING),
243 L(NOTICE),
244 L(INFO),
245 L(DEBUG),
246 /* facility */
247 L(AUTH),
248 #ifdef LOG_AUTHPRIV
249 L(AUTHPRIV),
250 #endif
251 #ifdef LOG_CRON
252 L(CRON),
253 #endif
254 L(DAEMON),
255 #ifdef LOG_FTP
256 L(FTP),
257 #endif
258 L(KERN),
259 L(LPR),
260 L(MAIL),
261 #ifdef LOG_NEWS
262 L(NEWS),
263 #endif
264 L(SYSLOG),
265 L(USER),
266 #ifdef LOG_UUCP
267 L(UUCP),
268 #endif
269 L(LOCAL0),
270 L(LOCAL1),
271 L(LOCAL2),
272 L(LOCAL3),
273 L(LOCAL4),
274 L(LOCAL5),
275 L(LOCAL6),
276 L(LOCAL7),
277 { NULL, -1 }
278 };
279
280 static int
find_value(const char * s,struct s2i * table)281 find_value(const char *s, struct s2i *table)
282 {
283 while(table->s && strcasecmp(table->s, s))
284 table++;
285 return table->val;
286 }
287
288 static int
check_log(krb5_context context,const char * path,char * data)289 check_log(krb5_context context, const char *path, char *data)
290 {
291 /* XXX sync with log.c */
292 int min = 0, max = -1, n;
293 char c;
294 const char *p = data;
295 #ifdef _WIN32
296 const char *q;
297 #endif
298
299 n = sscanf(p, "%d%c%d/", &min, &c, &max);
300 if(n == 2){
301 if(ISPATHSEP(c)) {
302 if(min < 0){
303 max = -min;
304 min = 0;
305 }else{
306 max = min;
307 }
308 }
309 }
310 if(n){
311 #ifdef _WIN32
312 q = strrchr(p, '\\');
313 if (q != NULL)
314 p = q;
315 else
316 #endif
317 p = strchr(p, '/');
318 if(p == NULL) {
319 krb5_warnx(context, "%s: failed to parse \"%s\"", path, data);
320 return 1;
321 }
322 p++;
323 }
324 if(strcmp(p, "STDERR") == 0 ||
325 strcmp(p, "CONSOLE") == 0 ||
326 (strncmp(p, "FILE", 4) == 0 && (p[4] == ':' || p[4] == '=')) ||
327 (strncmp(p, "DEVICE", 6) == 0 && p[6] == '='))
328 return 0;
329 if(strncmp(p, "SYSLOG", 6) == 0){
330 int ret = 0;
331 char severity[128] = "";
332 char facility[128] = "";
333 p += 6;
334 if(*p != '\0')
335 p++;
336 if(strsep_copy(&p, ":", severity, sizeof(severity)) != -1)
337 strsep_copy(&p, ":", facility, sizeof(facility));
338 if(*severity == '\0')
339 strlcpy(severity, "ERR", sizeof(severity));
340 if(*facility == '\0')
341 strlcpy(facility, "AUTH", sizeof(facility));
342 if(find_value(facility, syslogvals) == -1) {
343 krb5_warnx(context, "%s: unknown syslog facility \"%s\"",
344 path, facility);
345 ret++;
346 }
347 if(find_value(severity, syslogvals) == -1) {
348 krb5_warnx(context, "%s: unknown syslog severity \"%s\"",
349 path, severity);
350 ret++;
351 }
352 return ret;
353 }else{
354 krb5_warnx(context, "%s: unknown log type: \"%s\"", path, data);
355 return 1;
356 }
357 }
358
359 typedef int (*check_func_t)(krb5_context, const char*, char*);
360 struct entry {
361 const char *name;
362 int type;
363 void *check_data;
364 int deprecated;
365 };
366
367 struct entry all_strings[] = {
368 { "", krb5_config_string, NULL, 0 },
369 { NULL, 0, NULL, 0 }
370 };
371
372 struct entry all_boolean[] = {
373 { "", krb5_config_string, check_boolean, 0 },
374 { NULL, 0, NULL, 0 }
375 };
376
377
378 struct entry v4_name_convert_entries[] = {
379 { "host", krb5_config_list, all_strings, 0 },
380 { "plain", krb5_config_list, all_strings, 0 },
381 { NULL, 0, NULL, 0 }
382 };
383
384 struct entry libdefaults_entries[] = {
385 { "accept_null_addresses", krb5_config_string, check_boolean, 0 },
386 { "allow_weak_crypto", krb5_config_string, check_boolean, 0 },
387 { "capath", krb5_config_list, all_strings, 1 },
388 { "ccapi_library", krb5_config_string, NULL, 0 },
389 { "check_pac", krb5_config_string, check_boolean, 0 },
390 { "check-rd-req-server", krb5_config_string, check_boolean, 0 },
391 { "clockskew", krb5_config_string, check_time, 0 },
392 { "date_format", krb5_config_string, NULL, 0 },
393 { "default_as_etypes", krb5_config_string, NULL, 0 },
394 { "default_cc_name", krb5_config_string, NULL, 0 },
395 { "default_cc_type", krb5_config_string, NULL, 0 },
396 { "default_etypes", krb5_config_string, NULL, 0 },
397 { "default_etypes_des", krb5_config_string, NULL, 0 },
398 { "default_keytab_modify_name", krb5_config_string, NULL, 0 },
399 { "default_keytab_name", krb5_config_string, NULL, 0 },
400 { "default_keytab_modify_name", krb5_config_string, NULL, 0 },
401 { "default_realm", krb5_config_string, NULL, 0 },
402 { "default_tgs_etypes", krb5_config_string, NULL, 0 },
403 { "dns_canonize_hostname", krb5_config_string, check_boolean, 0 },
404 { "dns_proxy", krb5_config_string, NULL, 0 },
405 { "dns_lookup_kdc", krb5_config_string, check_boolean, 0 },
406 { "dns_lookup_realm", krb5_config_string, check_boolean, 0 },
407 { "dns_lookup_realm_labels", krb5_config_string, NULL, 0 },
408 { "egd_socket", krb5_config_string, NULL, 0 },
409 { "encrypt", krb5_config_string, check_boolean, 0 },
410 { "extra_addresses", krb5_config_string, NULL, 0 },
411 { "fcache_version", krb5_config_string, check_numeric, 0 },
412 { "fcache_strict_checking", krb5_config_string, check_boolean, 0 },
413 { "fcc-mit-ticketflags", krb5_config_string, check_boolean, 0 },
414 { "forward", krb5_config_string, check_boolean, 0 },
415 { "forwardable", krb5_config_string, check_boolean, 0 },
416 { "allow_hierarchical_capaths", krb5_config_string, check_boolean, 0 },
417 { "host_timeout", krb5_config_string, check_time, 0 },
418 { "http_proxy", krb5_config_string, check_host /* XXX */, 0 },
419 { "ignore_addresses", krb5_config_string, NULL, 0 },
420 { "k5login_authoritative", krb5_config_string, check_boolean, 0 },
421 { "k5login_directory", krb5_config_string, NULL, 0 },
422 { "kdc_timeout", krb5_config_string, check_time, 0 },
423 { "kdc_timesync", krb5_config_string, check_boolean, 0 },
424 { "kuserok", krb5_config_string, NULL, 0 },
425 { "large_message_size", krb5_config_string, check_numeric, 0 },
426 { "log_utc", krb5_config_string, check_boolean, 0 },
427 { "max_retries", krb5_config_string, check_numeric, 0 },
428 { "maximum_message_size", krb5_config_string, check_numeric, 0 },
429 { "moduli", krb5_config_string, NULL, 0 },
430 { "name_canon_rules", krb5_config_string, NULL, 0 },
431 { "no-addresses", krb5_config_string, check_boolean, 0 },
432 { "pkinit_dh_min_bits", krb5_config_string, NULL, 0 },
433 { "proxiable", krb5_config_string, check_boolean, 0 },
434 { "renew_lifetime", krb5_config_string, check_time, 0 },
435 { "scan_interfaces", krb5_config_string, check_boolean, 0 },
436 { "srv_lookup", krb5_config_string, check_boolean, 0 },
437 { "srv_try_txt", krb5_config_string, check_boolean, 0 },
438 { "ticket_lifetime", krb5_config_string, check_time, 0 },
439 { "time_format", krb5_config_string, NULL, 0 },
440 { "transited_realms_reject", krb5_config_string, NULL, 0 },
441 { "use_fallback", krb5_config_string, check_boolean, 0 },
442 { "v4_instance_resolve", krb5_config_string, check_boolean, 0 },
443 { "v4_name_convert", krb5_config_list, v4_name_convert_entries, 0 },
444 { "verify_ap_req_nofail", krb5_config_string, check_boolean, 0 },
445 { "warn_pwexpire", krb5_config_string, check_time, 0 },
446
447 /* MIT stuff */
448 { "permitted_enctypes", krb5_config_string, mit_entry, 0 },
449 { "default_tgs_enctypes", krb5_config_string, mit_entry, 0 },
450 { "default_tkt_enctypes", krb5_config_string, mit_entry, 0 },
451 { NULL, 0, NULL, 0 }
452 };
453
454 struct entry appdefaults_entries[] = {
455 { "afslog", krb5_config_string, check_boolean, 0 },
456 { "afs-use-524", krb5_config_string, check_524, 0 },
457 #if 0
458 { "anonymous", krb5_config_string, check_boolean, 0 },
459 #endif
460 { "encrypt", krb5_config_string, check_boolean, 0 },
461 { "forward", krb5_config_string, check_boolean, 0 },
462 { "forwardable", krb5_config_string, check_boolean, 0 },
463 { "krb4_get_tickets", krb5_config_string, check_boolean, 0 },
464 { "proxiable", krb5_config_string, check_boolean, 0 },
465 { "renew_lifetime", krb5_config_string, check_time, 0 },
466 { "no-addresses", krb5_config_string, check_boolean, 0 },
467 { "pkinit_anchors", krb5_config_string, NULL, 0 },
468 { "pkinit_pool", krb5_config_string, NULL, 0 },
469 { "pkinit_require_eku", krb5_config_string, NULL, 0 },
470 { "pkinit_require_hostname_match", krb5_config_string, NULL, 0 },
471 { "pkinit_require_krbtgt_otherName", krb5_config_string, NULL, 0 },
472 { "pkinit_revoke", krb5_config_string, NULL, 0 },
473 { "pkinit_trustedCertifiers", krb5_config_string, check_boolean, 0 },
474 { "pkinit_win2k", krb5_config_string, NULL, 0 },
475 { "pkinit_win2k_require_binding", krb5_config_string, NULL, 0 },
476 { "ticket_lifetime", krb5_config_string, check_time, 0 },
477 { "", krb5_config_list, appdefaults_entries, 0 },
478 { NULL, 0, NULL, 0 }
479 };
480
481 struct entry realms_entries[] = {
482 { "admin_server", krb5_config_string, check_host, 0 },
483 { "auth_to_local", krb5_config_string, NULL, 0 },
484 { "auth_to_local_names", krb5_config_string, NULL, 0 },
485 { "default_domain", krb5_config_string, NULL, 0 },
486 { "forwardable", krb5_config_string, check_boolean, 0 },
487 { "allow_hierarchical_capaths", krb5_config_string, check_boolean, 0 },
488 { "kdc", krb5_config_string, check_host, 0 },
489 { "kpasswd_server", krb5_config_string, check_host, 0 },
490 { "krb524_server", krb5_config_string, check_host, 0 },
491 { "kx509_ca", krb5_config_string, NULL, 0 },
492 { "kx509_include_pkinit_san", krb5_config_string, check_boolean, 0 },
493 { "name_canon_rules", krb5_config_string, NULL, 0 },
494 { "no-addresses", krb5_config_string, check_boolean, 0 },
495 { "pkinit_anchors", krb5_config_string, NULL, 0 },
496 { "pkinit_require_eku", krb5_config_string, NULL, 0 },
497 { "pkinit_require_hostname_match", krb5_config_string, NULL, 0 },
498 { "pkinit_require_krbtgt_otherName", krb5_config_string, NULL, 0 },
499 { "pkinit_trustedCertifiers", krb5_config_string, check_boolean, 0 },
500 { "pkinit_win2k", krb5_config_string, NULL, 0 },
501 { "pkinit_win2k_require_binding", krb5_config_string, NULL, 0 },
502 { "proxiable", krb5_config_string, check_boolean, 0 },
503 { "renew_lifetime", krb5_config_string, check_time, 0 },
504 { "require_initial_kca_tickets", krb5_config_string, check_boolean, 0 },
505 { "ticket_lifetime", krb5_config_string, check_time, 0 },
506 { "v4_domains", krb5_config_string, NULL, 0 },
507 { "v4_instance_convert", krb5_config_list, all_strings, 0 },
508 { "v4_name_convert", krb5_config_list, v4_name_convert_entries, 0 },
509 { "warn_pwexpire", krb5_config_string, check_time, 0 },
510 { "win2k_pkinit", krb5_config_string, NULL, 0 },
511
512 /* MIT stuff */
513 { "admin_keytab", krb5_config_string, mit_entry, 0 },
514 { "acl_file", krb5_config_string, mit_entry, 0 },
515 { "database_name", krb5_config_string, mit_entry, 0 },
516 { "default_principal_expiration", krb5_config_string, mit_entry, 0 },
517 { "default_principal_flags", krb5_config_string, mit_entry, 0 },
518 { "dict_file", krb5_config_string, mit_entry, 0 },
519 { "kadmind_port", krb5_config_string, mit_entry, 0 },
520 { "kpasswd_port", krb5_config_string, mit_entry, 0 },
521 { "master_kdc", krb5_config_string, mit_entry, 0 },
522 { "master_key_name", krb5_config_string, mit_entry, 0 },
523 { "master_key_type", krb5_config_string, mit_entry, 0 },
524 { "key_stash_file", krb5_config_string, mit_entry, 0 },
525 { "max_life", krb5_config_string, mit_entry, 0 },
526 { "max_renewable_life", krb5_config_string, mit_entry, 0 },
527 { "supported_enctypes", krb5_config_string, mit_entry, 0 },
528 { NULL, 0, NULL, 0 }
529 };
530
531 struct entry realms_foobar[] = {
532 { "", krb5_config_list, realms_entries, 0 },
533 { NULL, 0, NULL, 0 }
534 };
535
536
537 struct entry kdc_database_entries[] = {
538 { "acl_file", krb5_config_string, NULL, 0 },
539 { "dbname", krb5_config_string, NULL, 0 },
540 { "log_file", krb5_config_string, NULL, 0 },
541 { "mkey_file", krb5_config_string, NULL, 0 },
542 { "realm", krb5_config_string, NULL, 0 },
543 { NULL, 0, NULL, 0 }
544 };
545
546 struct entry kdc_entries[] = {
547 { "addresses", krb5_config_string, NULL, 0 },
548 { "allow-anonymous", krb5_config_string, check_boolean, 0 },
549 { "allow-null-ticket-addresses", krb5_config_string, check_boolean, 0 },
550 { "check-ticket-addresses", krb5_config_string, check_boolean, 0 },
551 { "database", krb5_config_list, kdc_database_entries, 0 },
552 { "detach", krb5_config_string, check_boolean, 0 },
553 { "digests_allowed", krb5_config_string, NULL, 0 },
554 { "disable-des", krb5_config_string, check_boolean, 0 },
555 { "enable-524", krb5_config_string, check_boolean, 0 },
556 { "enable-digest", krb5_config_string, check_boolean, 0 },
557 { "enable-kaserver", krb5_config_string, check_boolean, 1 },
558 { "enable-kerberos4", krb5_config_string, check_boolean, 1 },
559 { "enable-kx509", krb5_config_string, check_boolean, 0 },
560 { "enable-http", krb5_config_string, check_boolean, 0 },
561 { "enable-pkinit", krb5_config_string, check_boolean, 0 },
562 { "encode_as_rep_as_tgs_rep", krb5_config_string, check_boolean, 0 },
563 { "enforce-transited-policy", krb5_config_string, NULL, 1 },
564 { "hdb-ldap-create-base", krb5_config_string, NULL, 0 },
565 { "iprop-acl", krb5_config_string, NULL, 0 },
566 { "iprop-stats", krb5_config_string, NULL, 0 },
567 { "kdc-request-log", krb5_config_string, NULL, 0 },
568 { "kdc_warn_pwexpire", krb5_config_string, check_time, 0 },
569 { "key-file", krb5_config_string, NULL, 0 },
570 { "kx509_ca", krb5_config_string, NULL, 0 },
571 { "kx509_include_pkinit_san", krb5_config_string, check_boolean, 0 },
572 { "kx509_template", krb5_config_string, NULL, 0 },
573 { "logging", krb5_config_string, check_log, 0 },
574 { "max-kdc-datagram-reply-length", krb5_config_string, check_bytes, 0 },
575 { "max-request", krb5_config_string, check_bytes, 0 },
576 { "pkinit_allow_proxy_certificate", krb5_config_string, check_boolean, 0 },
577 { "pkinit_anchors", krb5_config_string, NULL, 0 },
578 { "pkinit_dh_min_bits", krb5_config_string, check_numeric, 0 },
579 { "pkinit_identity", krb5_config_string, NULL, 0 },
580 { "pkinit_kdc_friendly_name", krb5_config_string, NULL, 0 },
581 { "pkinit_kdc_ocsp", krb5_config_string, NULL, 0 },
582 { "pkinit_mappings_file", krb5_config_string, NULL, 0 },
583 { "pkinit_pool", krb5_config_string, NULL, 0 },
584 { "pkinit_principal_in_certificate", krb5_config_string, check_boolean, 0 },
585 { "pkinit_revoke", krb5_config_string, NULL, 0 },
586 { "pkinit_win2k_require_binding", krb5_config_string, check_boolean, 0 },
587 { "ports", krb5_config_string, NULL, 0 },
588 { "preauth-use-strongest-session-key", krb5_config_string, check_boolean, 0 },
589 { "require_initial_kca_tickets", krb5_config_string, check_boolean, 0 },
590 { "require-preauth", krb5_config_string, check_boolean, 0 },
591 { "svc-use-strongest-session-key", krb5_config_string, check_boolean, 0 },
592 { "tgt-use-strongest-session-key", krb5_config_string, check_boolean, 0 },
593 { "transited-policy", krb5_config_string, NULL, 0 },
594 { "use_2b", krb5_config_list, NULL, 0 },
595 { "use-strongest-server-key", krb5_config_string, check_boolean, 0 },
596 { "v4_realm", krb5_config_string, NULL, 0 },
597 { NULL, 0, NULL, 0 }
598 };
599
600 struct entry kadmin_entries[] = {
601 { "allow_self_change_password", krb5_config_string, check_boolean, 0 },
602 { "default_keys", krb5_config_string, NULL, 0 },
603 { "password_lifetime", krb5_config_string, check_time, 0 },
604 { "require-preauth", krb5_config_string, check_boolean, 0 },
605 { "save-password", krb5_config_string, check_boolean, 0 },
606 { "use_v4_salt", krb5_config_string, NULL, 0 },
607 { NULL, 0, NULL, 0 }
608 };
609 struct entry log_strings[] = {
610 { "", krb5_config_string, check_log, 0 },
611 { NULL, 0, NULL, 0 }
612 };
613
614
615 /* MIT stuff */
616 struct entry kdcdefaults_entries[] = {
617 { "kdc_ports", krb5_config_string, mit_entry, 0 },
618 { "v4_mode", krb5_config_string, mit_entry, 0 },
619 { NULL, 0, NULL, 0 }
620 };
621
622 struct entry capaths_entries[] = {
623 { "", krb5_config_list, all_strings, 0 },
624 { NULL, 0, NULL, 0 }
625 };
626
627 struct entry kcm_entries[] = {
628 { "detach", krb5_config_string, check_boolean, 0 },
629 { "disallow-getting-krbtgt", krb5_config_string, check_boolean, 0 },
630 { "logging", krb5_config_string, NULL, 0 },
631 { "max-request", krb5_config_string, NULL, 0 },
632 { "system_ccache", krb5_config_string, NULL, 0 },
633 { NULL, 0, NULL, 0 }
634 };
635
636 struct entry password_quality_entries[] = {
637 { "check_function", krb5_config_string, NULL, 0 },
638 { "check_library", krb5_config_string, NULL, 0 },
639 { "external_program", krb5_config_string, NULL, 0 },
640 { "min_classes", krb5_config_string, check_numeric, 0 },
641 { "min_length", krb5_config_string, check_numeric, 0 },
642 { "policies", krb5_config_string, NULL, 0 },
643 { "policy_libraries", krb5_config_string, NULL, 0 },
644 { "", krb5_config_list, all_strings, 0 },
645 { NULL, 0, NULL, 0 }
646 };
647
648 struct entry toplevel_sections[] = {
649 { "appdefaults", krb5_config_list, appdefaults_entries, 0 },
650 { "capaths", krb5_config_list, capaths_entries, 0 },
651 { "domain_realm", krb5_config_list, all_strings, 0 },
652 { "gssapi", krb5_config_list, NULL, 0 },
653 { "kadmin", krb5_config_list, kadmin_entries, 0 },
654 { "kcm", krb5_config_list, kcm_entries, 0 },
655 { "kdc", krb5_config_list, kdc_entries, 0 },
656 { "libdefaults" , krb5_config_list, libdefaults_entries, 0 },
657 { "logging", krb5_config_list, log_strings, 0 },
658 { "password_quality", krb5_config_list, password_quality_entries, 0 },
659 { "realms", krb5_config_list, realms_foobar, 0 },
660
661 /* MIT stuff */
662 { "kdcdefaults", krb5_config_list, kdcdefaults_entries, 0 },
663 { NULL, 0, NULL, 0 }
664 };
665
666
667 static int
check_section(krb5_context context,const char * path,krb5_config_section * cf,struct entry * entries)668 check_section(krb5_context context, const char *path, krb5_config_section *cf,
669 struct entry *entries)
670 {
671 int error = 0;
672 krb5_config_section *p;
673 struct entry *e;
674
675 char *local;
676
677 for(p = cf; p != NULL; p = p->next) {
678 local = NULL;
679 if (asprintf(&local, "%s/%s", path, p->name) < 0 || local == NULL)
680 errx(1, "out of memory");
681 for(e = entries; e->name != NULL; e++) {
682 if(*e->name == '\0' || strcmp(e->name, p->name) == 0) {
683 if(e->type != p->type) {
684 krb5_warnx(context, "%s: unknown or wrong type", local);
685 error |= 1;
686 } else if(p->type == krb5_config_string && e->check_data != NULL) {
687 error |= (*(check_func_t)e->check_data)(context, local, p->u.string);
688 } else if(p->type == krb5_config_list && e->check_data != NULL) {
689 error |= check_section(context, local, p->u.list, e->check_data);
690 }
691 if(e->deprecated) {
692 krb5_warnx(context, "%s: is a deprecated entry", local);
693 error |= 1;
694 }
695 break;
696 }
697 }
698 if(e->name == NULL) {
699 krb5_warnx(context, "%s: unknown entry", local);
700 error |= 1;
701 }
702 free(local);
703 }
704 return error;
705 }
706
707
708 static void
dumpconfig(int level,krb5_config_section * top)709 dumpconfig(int level, krb5_config_section *top)
710 {
711 krb5_config_section *x;
712 for(x = top; x; x = x->next) {
713 switch(x->type) {
714 case krb5_config_list:
715 if(level == 0) {
716 printf("[%s]\n", x->name);
717 } else {
718 printf("%*s%s = {\n", 4 * level, " ", x->name);
719 }
720 dumpconfig(level + 1, x->u.list);
721 if(level > 0)
722 printf("%*s}\n", 4 * level, " ");
723 break;
724 case krb5_config_string:
725 printf("%*s%s = %s\n", 4 * level, " ", x->name, x->u.string);
726 break;
727 }
728 }
729 }
730
731 int
main(int argc,char ** argv)732 main(int argc, char **argv)
733 {
734 krb5_context context;
735 krb5_error_code ret;
736 krb5_config_section *tmp_cf;
737 int optidx = 0;
738
739 setprogname (argv[0]);
740
741 ret = krb5_init_context(&context);
742 if (ret == KRB5_CONFIG_BADFORMAT)
743 errx (1, "krb5_init_context failed to parse configuration file");
744 else if (ret)
745 errx (1, "krb5_init_context failed with %d", ret);
746
747 if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
748 usage(1);
749
750 if (help_flag)
751 usage (0);
752
753 if(version_flag){
754 print_version(NULL);
755 exit(0);
756 }
757
758 argc -= optidx;
759 argv += optidx;
760
761 tmp_cf = NULL;
762 if(argc == 0)
763 krb5_get_default_config_files(&argv);
764
765 while(*argv) {
766 ret = krb5_config_parse_file_multi(context, *argv, &tmp_cf);
767 if (ret != 0)
768 krb5_warn (context, ret, "krb5_config_parse_file");
769 argv++;
770 }
771
772 if(dumpconfig_flag)
773 dumpconfig(0, tmp_cf);
774
775 return check_section(context, "", tmp_cf, toplevel_sections);
776 }
777