1 /* $NetBSD: kadmind.c,v 1.1.1.2 2014/04/24 12:45:27 pettai Exp $ */ 2 3 /* 4 * Copyright (c) 1997-2004 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 "kadmin_locl.h" 37 38 static char *check_library = NULL; 39 static char *check_function = NULL; 40 static getarg_strings policy_libraries = { 0, NULL }; 41 static char *config_file; 42 static char sHDB[] = "HDB:"; 43 static char *keytab_str = sHDB; 44 static int help_flag; 45 static int version_flag; 46 static int debug_flag; 47 static char *port_str; 48 char *realm; 49 50 static struct getargs args[] = { 51 { 52 "config-file", 'c', arg_string, &config_file, 53 "location of config file", "file" 54 }, 55 { 56 "keytab", 0, arg_string, &keytab_str, 57 "what keytab to use", "keytab" 58 }, 59 { "realm", 'r', arg_string, &realm, 60 "realm to use", "realm" 61 }, 62 #ifdef HAVE_DLOPEN 63 { "check-library", 0, arg_string, &check_library, 64 "library to load password check function from", "library" }, 65 { "check-function", 0, arg_string, &check_function, 66 "password check function to load", "function" }, 67 { "policy-libraries", 0, arg_strings, &policy_libraries, 68 "password check function to load", "function" }, 69 #endif 70 { "debug", 'd', arg_flag, &debug_flag, 71 "enable debugging", NULL 72 }, 73 { "ports", 'p', arg_string, &port_str, 74 "ports to listen to", "port" }, 75 { "help", 'h', arg_flag, &help_flag, NULL, NULL }, 76 { "version", 'v', arg_flag, &version_flag, NULL, NULL } 77 }; 78 79 static int num_args = sizeof(args) / sizeof(args[0]); 80 81 krb5_context context; 82 83 static void 84 usage(int ret) 85 { 86 arg_printusage (args, num_args, NULL, ""); 87 exit (ret); 88 } 89 90 int 91 main(int argc, char **argv) 92 { 93 krb5_error_code ret; 94 char **files; 95 int optidx = 0; 96 int i; 97 krb5_log_facility *logfacility; 98 krb5_keytab keytab; 99 krb5_socket_t sfd = rk_INVALID_SOCKET; 100 101 setprogname(argv[0]); 102 103 ret = krb5_init_context(&context); 104 if (ret) 105 errx (1, "krb5_init_context failed: %d", ret); 106 107 if (getarg(args, num_args, argc, argv, &optidx)) { 108 warnx("error at argument `%s'", argv[optidx]); 109 usage(1); 110 } 111 112 if (help_flag) 113 usage (0); 114 115 if (version_flag) { 116 print_version(NULL); 117 exit(0); 118 } 119 120 argc -= optidx; 121 argv += optidx; 122 123 if (config_file == NULL) { 124 asprintf(&config_file, "%s/kdc.conf", hdb_db_dir(context)); 125 if (config_file == NULL) 126 errx(1, "out of memory"); 127 } 128 129 ret = krb5_prepend_config_files_default(config_file, &files); 130 if (ret) 131 krb5_err(context, 1, ret, "getting configuration files"); 132 133 ret = krb5_set_config_files(context, files); 134 krb5_free_config_files(files); 135 if(ret) 136 krb5_err(context, 1, ret, "reading configuration files"); 137 138 ret = krb5_openlog(context, "kadmind", &logfacility); 139 if (ret) 140 krb5_err(context, 1, ret, "krb5_openlog"); 141 ret = krb5_set_warn_dest(context, logfacility); 142 if (ret) 143 krb5_err(context, 1, ret, "krb5_set_warn_dest"); 144 145 ret = krb5_kt_register(context, &hdb_kt_ops); 146 if(ret) 147 krb5_err(context, 1, ret, "krb5_kt_register"); 148 149 ret = krb5_kt_resolve(context, keytab_str, &keytab); 150 if(ret) 151 krb5_err(context, 1, ret, "krb5_kt_resolve"); 152 153 kadm5_setup_passwd_quality_check (context, check_library, check_function); 154 155 for (i = 0; i < policy_libraries.num_strings; i++) { 156 ret = kadm5_add_passwd_quality_verifier(context, 157 policy_libraries.strings[i]); 158 if (ret) 159 krb5_err(context, 1, ret, "kadm5_add_passwd_quality_verifier"); 160 } 161 ret = kadm5_add_passwd_quality_verifier(context, NULL); 162 if (ret) 163 krb5_err(context, 1, ret, "kadm5_add_passwd_quality_verifier"); 164 165 if(debug_flag) { 166 int debug_port; 167 168 if(port_str == NULL) 169 debug_port = krb5_getportbyname (context, "kerberos-adm", 170 "tcp", 749); 171 else 172 debug_port = htons(atoi(port_str)); 173 mini_inetd(debug_port, &sfd); 174 } else { 175 #ifdef _WIN32 176 pidfile(NULL); 177 start_server(context, port_str); 178 #else 179 struct sockaddr_storage __ss; 180 struct sockaddr *sa = (struct sockaddr *)&__ss; 181 socklen_t sa_size = sizeof(__ss); 182 183 /* 184 * Check if we are running inside inetd or not, if not, start 185 * our own server. 186 */ 187 188 if(roken_getsockname(STDIN_FILENO, sa, &sa_size) < 0 && 189 rk_SOCK_ERRNO == ENOTSOCK) { 190 pidfile(NULL); 191 start_server(context, port_str); 192 } 193 #endif /* _WIN32 */ 194 sfd = STDIN_FILENO; 195 } 196 197 if(realm) 198 krb5_set_default_realm(context, realm); /* XXX */ 199 200 kadmind_loop(context, keytab, sfd); 201 202 return 0; 203 } 204