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 H��gskolan
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
43static int dumpconfig_flag = 0;
44static int version_flag = 0;
45static int help_flag	= 0;
46static int warn_mit_syntax_flag = 0;
47
48static 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
59static void
60usage (int ret)
61{
62    arg_printusage (args,
63		    sizeof(args)/sizeof(*args),
64		    NULL,
65		    "[config-file]");
66    exit (ret);
67}
68
69static int
70check_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
79static int
80check_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
89static int
90check_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
109static int
110check_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
131static int
132check_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
145static int
146check_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
221static int
222mit_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
229struct s2i {
230    const char *s;
231    int val;
232};
233
234#define L(X) { #X, LOG_ ## X }
235
236static 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
280static int
281find_value(const char *s, struct s2i *table)
282{
283    while(table->s && strcasecmp(table->s, s))
284	table++;
285    return table->val;
286}
287
288static int
289check_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
359typedef int (*check_func_t)(krb5_context, const char*, char*);
360struct entry {
361    const char *name;
362    int type;
363    void *check_data;
364    int deprecated;
365};
366
367struct entry all_strings[] = {
368    { "", krb5_config_string, NULL, 0 },
369    { NULL, 0, NULL, 0 }
370};
371
372struct entry all_boolean[] = {
373    { "", krb5_config_string, check_boolean, 0 },
374    { NULL, 0, NULL, 0 }
375};
376
377
378struct 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
384struct 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
454struct 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
481struct 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
531struct entry realms_foobar[] = {
532    { "", krb5_config_list, realms_entries, 0 },
533    { NULL, 0, NULL, 0 }
534};
535
536
537struct 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
546struct 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
600struct 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};
609struct entry log_strings[] = {
610    { "", krb5_config_string, check_log, 0 },
611    { NULL, 0, NULL, 0 }
612};
613
614
615/* MIT stuff */
616struct 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
622struct entry capaths_entries[] = {
623    { "", krb5_config_list, all_strings, 0 },
624    { NULL, 0, NULL, 0 }
625};
626
627struct 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
636struct 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
648struct 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
667static int
668check_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
708static void
709dumpconfig(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
731int
732main(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