/crypto/heimdal/kadmin/kadmind.c

  1/*
  2 * Copyright (c) 1997-2004 Kungliga Tekniska Hรถgskolan
  3 * (Royal Institute of Technology, Stockholm, Sweden).
  4 * All rights reserved.
  5 *
  6 * Redistribution and use in source and binary forms, with or without
  7 * modification, are permitted provided that the following conditions
  8 * are met:
  9 *
 10 * 1. Redistributions of source code must retain the above copyright
 11 *    notice, this list of conditions and the following disclaimer.
 12 *
 13 * 2. Redistributions in binary form must reproduce the above copyright
 14 *    notice, this list of conditions and the following disclaimer in the
 15 *    documentation and/or other materials provided with the distribution.
 16 *
 17 * 3. Neither the name of the Institute nor the names of its contributors
 18 *    may be used to endorse or promote products derived from this software
 19 *    without specific prior written permission.
 20 *
 21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 31 * SUCH DAMAGE.
 32 */
 33
 34#include "kadmin_locl.h"
 35
 36static char *check_library  = NULL;
 37static char *check_function = NULL;
 38static getarg_strings policy_libraries = { 0, NULL };
 39static char *config_file;
 40static char sHDB[] = "HDB:";
 41static char *keytab_str = sHDB;
 42static int help_flag;
 43static int version_flag;
 44static int debug_flag;
 45static char *port_str;
 46char *realm;
 47
 48static struct getargs args[] = {
 49    {
 50	"config-file",	'c',	arg_string,	&config_file,
 51	"location of config file",	"file"
 52    },
 53    {
 54	"keytab",	0,	arg_string, &keytab_str,
 55	"what keytab to use", "keytab"
 56    },
 57    {	"realm",	'r',	arg_string,   &realm,
 58	"realm to use", "realm"
 59    },
 60#ifdef HAVE_DLOPEN
 61    { "check-library", 0, arg_string, &check_library,
 62      "library to load password check function from", "library" },
 63    { "check-function", 0, arg_string, &check_function,
 64      "password check function to load", "function" },
 65    { "policy-libraries", 0, arg_strings, &policy_libraries,
 66      "password check function to load", "function" },
 67#endif
 68    {	"debug",	'd',	arg_flag,   &debug_flag,
 69	"enable debugging", NULL
 70    },
 71    {	"ports",	'p',	arg_string, &port_str,
 72	"ports to listen to", "port" },
 73    {	"help",		'h',	arg_flag,   &help_flag, NULL, NULL },
 74    {	"version",	'v',	arg_flag,   &version_flag, NULL, NULL }
 75};
 76
 77static int num_args = sizeof(args) / sizeof(args[0]);
 78
 79krb5_context context;
 80
 81static void
 82usage(int ret)
 83{
 84    arg_printusage (args, num_args, NULL, "");
 85    exit (ret);
 86}
 87
 88int
 89main(int argc, char **argv)
 90{
 91    krb5_error_code ret;
 92    char **files;
 93    int optidx = 0;
 94    int i;
 95    krb5_log_facility *logfacility;
 96    krb5_keytab keytab;
 97    krb5_socket_t sfd = rk_INVALID_SOCKET;
 98
 99    setprogname(argv[0]);
100
101    ret = krb5_init_context(&context);
102    if (ret)
103	errx (1, "krb5_init_context failed: %d", ret);
104
105    if (getarg(args, num_args, argc, argv, &optidx)) {
106	warnx("error at argument `%s'", argv[optidx]);
107	usage(1);
108    }
109
110    if (help_flag)
111	usage (0);
112
113    if (version_flag) {
114	print_version(NULL);
115	exit(0);
116    }
117
118    argc -= optidx;
119    argv += optidx;
120
121    if (config_file == NULL) {
122	asprintf(&config_file, "%s/kdc.conf", hdb_db_dir(context));
123	if (config_file == NULL)
124	    errx(1, "out of memory");
125    }
126
127    ret = krb5_prepend_config_files_default(config_file, &files);
128    if (ret)
129	krb5_err(context, 1, ret, "getting configuration files");
130
131    ret = krb5_set_config_files(context, files);
132    krb5_free_config_files(files);
133    if(ret)
134	krb5_err(context, 1, ret, "reading configuration files");
135
136    ret = krb5_openlog(context, "kadmind", &logfacility);
137    if (ret)
138	krb5_err(context, 1, ret, "krb5_openlog");
139    ret = krb5_set_warn_dest(context, logfacility);
140    if (ret)
141	krb5_err(context, 1, ret, "krb5_set_warn_dest");
142
143    ret = krb5_kt_register(context, &hdb_kt_ops);
144    if(ret)
145	krb5_err(context, 1, ret, "krb5_kt_register");
146
147    ret = krb5_kt_resolve(context, keytab_str, &keytab);
148    if(ret)
149	krb5_err(context, 1, ret, "krb5_kt_resolve");
150
151    kadm5_setup_passwd_quality_check (context, check_library, check_function);
152
153    for (i = 0; i < policy_libraries.num_strings; i++) {
154	ret = kadm5_add_passwd_quality_verifier(context,
155						policy_libraries.strings[i]);
156	if (ret)
157	    krb5_err(context, 1, ret, "kadm5_add_passwd_quality_verifier");
158    }
159    ret = kadm5_add_passwd_quality_verifier(context, NULL);
160    if (ret)
161	krb5_err(context, 1, ret, "kadm5_add_passwd_quality_verifier");
162
163    if(debug_flag) {
164	int debug_port;
165
166	if(port_str == NULL)
167	    debug_port = krb5_getportbyname (context, "kerberos-adm",
168					     "tcp", 749);
169	else
170	    debug_port = htons(atoi(port_str));
171	mini_inetd(debug_port, &sfd);
172    } else {
173#ifdef _WIN32
174	pidfile(NULL);
175	start_server(context, port_str);
176#else
177	struct sockaddr_storage __ss;
178	struct sockaddr *sa = (struct sockaddr *)&__ss;
179	socklen_t sa_size = sizeof(__ss);
180
181	/*
182	 * Check if we are running inside inetd or not, if not, start
183	 * our own server.
184	 */
185
186	if(roken_getsockname(STDIN_FILENO, sa, &sa_size) < 0 &&
187	   rk_SOCK_ERRNO == ENOTSOCK) {
188	    pidfile(NULL);
189	    start_server(context, port_str);
190	}
191#endif /* _WIN32 */
192	sfd = STDIN_FILENO;
193    }
194
195    if(realm)
196	krb5_set_default_realm(context, realm); /* XXX */
197
198    kadmind_loop(context, keytab, sfd);
199
200    return 0;
201}