366 lines
11 KiB
C
366 lines
11 KiB
C
/*
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* Copyright (c) 1999 - 2001 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "krb5_locl.h"
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#include <getarg.h>
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#include <parse_bytes.h>
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#include <err.h>
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RCSID("$Id: verify_krb5_conf.c,v 1.7 2001/09/03 05:42:35 assar Exp $");
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/* verify krb5.conf */
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static int version_flag = 0;
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static int help_flag = 0;
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static struct getargs args[] = {
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{"version", 0, arg_flag, &version_flag,
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"print version", NULL },
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{"help", 0, arg_flag, &help_flag,
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NULL, NULL }
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};
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static void
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usage (int ret)
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{
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arg_printusage (args,
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sizeof(args)/sizeof(*args),
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NULL,
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"[config-file]");
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exit (ret);
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}
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static int
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check_bytes(krb5_context context, const char *path, char *data)
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{
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if(parse_bytes(data, NULL) == -1) {
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krb5_warnx(context, "%s: failed to parse \"%s\" as size", path, data);
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return 1;
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}
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return 0;
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}
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static int
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check_time(krb5_context context, const char *path, char *data)
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{
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if(parse_time(data, NULL) == -1) {
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krb5_warnx(context, "%s: failed to parse \"%s\" as time", path, data);
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return 1;
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}
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return 0;
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}
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static int
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check_numeric(krb5_context context, const char *path, char *data)
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{
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long int v;
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char *end;
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v = strtol(data, &end, 0);
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if(*end != '\0') {
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krb5_warnx(context, "%s: failed to parse \"%s\" as a number",
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path, data);
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return 1;
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}
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return 0;
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}
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static int
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check_boolean(krb5_context context, const char *path, char *data)
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{
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long int v;
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char *end;
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if(strcasecmp(data, "yes") == 0 ||
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strcasecmp(data, "true") == 0 ||
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strcasecmp(data, "no") == 0 ||
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strcasecmp(data, "false") == 0)
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return 0;
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v = strtol(data, &end, 0);
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if(*end != '\0') {
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krb5_warnx(context, "%s: failed to parse \"%s\" as a boolean",
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path, data);
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return 1;
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}
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return 0;
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}
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static int
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check_host(krb5_context context, const char *path, char *data)
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{
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int ret;
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char hostname[128];
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const char *p = data;
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struct addrinfo *ai;
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/* XXX data could be a list of hosts that this code can't handle */
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/* XXX copied from krbhst.c */
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if(strncmp(p, "http://", 7) == 0){
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p += 7;
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} else if(strncmp(p, "http/", 5) == 0) {
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p += 5;
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}else if(strncmp(p, "tcp/", 4) == 0){
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p += 4;
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} else if(strncmp(p, "udp/", 4) == 0) {
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p += 4;
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}
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if(strsep_copy(&p, ":", hostname, sizeof(hostname)) < 0) {
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return 1;
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}
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hostname[strcspn(hostname, "/")] = '\0';
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ret = getaddrinfo(hostname, "telnet" /* XXX */, NULL, &ai);
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if(ret != 0) {
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if(ret == EAI_NODATA)
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krb5_warnx(context, "%s: host not found (%s)", path, hostname);
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else
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krb5_warnx(context, "%s: %s (%s)", path, gai_strerror(ret), hostname);
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return 1;
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}
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return 0;
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}
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typedef int (*check_func_t)(krb5_context, const char*, char*);
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struct entry {
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const char *name;
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int type;
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void *check_data;
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};
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struct entry all_strings[] = {
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{ "", krb5_config_string, NULL },
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{ NULL }
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};
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struct entry v4_name_convert_entries[] = {
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{ "host", krb5_config_list, all_strings },
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{ "plain", krb5_config_list, all_strings },
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{ NULL }
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};
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struct entry libdefaults_entries[] = {
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{ "accept_null_addresses", krb5_config_string, check_boolean },
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{ "capath", krb5_config_list, all_strings },
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{ "clockskew", krb5_config_string, check_time },
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{ "date_format", krb5_config_string, NULL },
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{ "default_etypes", krb5_config_string, NULL },
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{ "default_etypes_des", krb5_config_string, NULL },
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{ "default_keytab_modify_name", krb5_config_string, NULL },
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{ "default_keytab_name", krb5_config_string, NULL },
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{ "default_realm", krb5_config_string, NULL },
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{ "dns_proxy", krb5_config_string, NULL },
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{ "egd_socket", krb5_config_string, NULL },
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{ "encrypt", krb5_config_string, check_boolean },
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{ "extra_addresses", krb5_config_string, NULL },
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{ "fcache_version", krb5_config_string, check_numeric },
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{ "forward", krb5_config_string, check_boolean },
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{ "forwardable", krb5_config_string, check_boolean },
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{ "http_proxy", krb5_config_string, check_host /* XXX */ },
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{ "ignore_addresses", krb5_config_string, NULL },
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{ "kdc_timeout", krb5_config_string, check_time },
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{ "kdc_timesync", krb5_config_string, check_boolean },
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{ "krb4_get_tickets", krb5_config_string, check_boolean },
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{ "log_utc", krb5_config_string, check_boolean },
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{ "maxretries", krb5_config_string, check_numeric },
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{ "scan_interfaces", krb5_config_string, check_boolean },
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{ "srv_lookup", krb5_config_string, check_boolean },
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{ "srv_try_txt", krb5_config_string, check_boolean },
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{ "ticket_lifetime", krb5_config_string, check_time },
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{ "time_format", krb5_config_string, NULL },
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{ "transited_realms_reject", krb5_config_string, NULL },
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{ "v4_instance_resolve", krb5_config_string, check_boolean },
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{ "v4_name_convert", krb5_config_list, v4_name_convert_entries },
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{ "verify_ap_req_nofail", krb5_config_string, check_boolean },
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{ NULL }
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};
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struct entry appdefaults_entries[] = {
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{ "forwardable", krb5_config_string, check_boolean },
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{ "proxiable", krb5_config_string, check_boolean },
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{ "ticket_lifetime", krb5_config_string, check_time },
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{ "renew_lifetime", krb5_config_string, check_time },
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{ "no-addresses", krb5_config_string, check_boolean },
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#if 0
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{ "anonymous", krb5_config_string, check_boolean },
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#endif
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{ "", krb5_config_list, appdefaults_entries },
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{ NULL }
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};
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struct entry realms_entries[] = {
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{ "forwardable", krb5_config_string, check_boolean },
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{ "proxiable", krb5_config_string, check_boolean },
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{ "ticket_lifetime", krb5_config_string, check_time },
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{ "renew_lifetime", krb5_config_string, check_time },
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{ "warn_pwexpire", krb5_config_string, check_time },
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{ "kdc", krb5_config_string, check_host },
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{ "admin_server", krb5_config_string, check_host },
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{ "kpasswd_server", krb5_config_string, check_host },
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{ "krb524_server", krb5_config_string, check_host },
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{ "v4_name_convert", krb5_config_list, v4_name_convert_entries },
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{ "v4_instance_convert", krb5_config_list, all_strings },
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{ "v4_domains", krb5_config_string, NULL },
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{ "default_domain", krb5_config_string, NULL },
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{ NULL }
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};
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struct entry realms_foobar[] = {
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{ "", krb5_config_list, realms_entries },
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{ NULL }
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};
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struct entry kdc_database_entries[] = {
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{ "realm", krb5_config_string, NULL },
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{ "dbname", krb5_config_string, NULL },
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{ "mkey_file", krb5_config_string, NULL },
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{ NULL }
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};
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struct entry kdc_entries[] = {
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{ "database", krb5_config_list, kdc_database_entries },
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{ "key-file", krb5_config_string, NULL },
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{ "logging", krb5_config_string, NULL },
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{ "max-request", krb5_config_string, check_bytes },
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{ "require-preauth", krb5_config_string, check_boolean },
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{ "ports", krb5_config_string, NULL },
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{ "addresses", krb5_config_string, NULL },
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{ "enable-kerberos4", krb5_config_string, check_boolean },
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{ "enable-524", krb5_config_string, check_boolean },
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{ "enable-http", krb5_config_string, check_boolean },
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{ "check_ticket-addresses", krb5_config_string, check_boolean },
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{ "allow-null-addresses", krb5_config_string, check_boolean },
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{ "allow-anonymous", krb5_config_string, check_boolean },
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{ "v4_realm", krb5_config_string, NULL },
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{ "enable-kaserver", krb5_config_string, check_boolean },
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{ "encode_as_rep_as_tgs_rep", krb5_config_string, check_boolean },
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{ "kdc_warn_pwexpire", krb5_config_string, check_time },
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{ NULL }
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};
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struct entry kadmin_entries[] = {
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{ "password_lifetime", krb5_config_string, check_time },
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{ "default_keys", krb5_config_string, NULL },
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{ "use_v4_salt", krb5_config_string, NULL },
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{ NULL }
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};
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struct entry toplevel_sections[] = {
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{ "libdefaults" , krb5_config_list, libdefaults_entries },
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{ "realms", krb5_config_list, realms_foobar },
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{ "domain_realm", krb5_config_list, all_strings },
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{ "logging", krb5_config_list, all_strings },
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{ "kdc", krb5_config_list, kdc_entries },
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{ "kadmin", krb5_config_list, kadmin_entries },
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{ "appdefaults", krb5_config_list, appdefaults_entries },
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{ NULL }
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};
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static int
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check_section(krb5_context context, const char *path, krb5_config_section *cf,
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struct entry *entries)
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{
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int error = 0;
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krb5_config_section *p;
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struct entry *e;
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char *local;
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for(p = cf; p != NULL; p = p->next) {
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asprintf(&local, "%s/%s", path, p->name);
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for(e = entries; e->name != NULL; e++) {
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if(*e->name == '\0' || strcmp(e->name, p->name) == 0) {
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if(e->type != p->type) {
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krb5_warnx(context, "%s: unknown or wrong type", local);
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error |= 1;
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} else if(p->type == krb5_config_string && e->check_data != NULL) {
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error |= (*(check_func_t)e->check_data)(context, local, p->u.string);
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} else if(p->type == krb5_config_list && e->check_data != NULL) {
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error |= check_section(context, local, p->u.list, e->check_data);
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}
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break;
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}
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}
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if(e->name == NULL) {
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krb5_warnx(context, "%s: unknown entry", local);
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error |= 1;
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}
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free(local);
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}
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return error;
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}
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int
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main(int argc, char **argv)
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{
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krb5_context context;
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const char *config_file = NULL;
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krb5_error_code ret;
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krb5_config_section *tmp_cf;
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int optind = 0;
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setprogname (argv[0]);
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ret = krb5_init_context(&context);
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if (ret)
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errx (1, "krb5_init_context failed");
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if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optind))
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usage(1);
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if (help_flag)
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usage (0);
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if(version_flag){
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print_version(NULL);
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exit(0);
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}
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argc -= optind;
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argv += optind;
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if (argc == 0) {
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config_file = getenv("KRB5_CONFIG");
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if (config_file == NULL)
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config_file = krb5_config_file;
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} else if (argc == 1) {
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config_file = argv[0];
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} else {
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usage (1);
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}
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ret = krb5_config_parse_file (context, config_file, &tmp_cf);
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if (ret != 0) {
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krb5_warn (context, ret, "krb5_config_parse_file");
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return 1;
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}
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return check_section(context, "", tmp_cf, toplevel_sections);
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}
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