kadmind.c revision 178825
1/* 2 * Copyright (c) 1997-2004 Kungliga Tekniska H�gskolan 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 36RCSID("$Id: kadmind.c 22250 2007-12-09 05:57:31Z lha $"); 37 38static char *check_library = NULL; 39static char *check_function = NULL; 40static getarg_strings policy_libraries = { 0, NULL }; 41static char *config_file; 42static char *keytab_str = "HDB:"; 43static int help_flag; 44static int version_flag; 45static int debug_flag; 46static char *port_str; 47char *realm; 48 49static struct getargs args[] = { 50 { 51 "config-file", 'c', arg_string, &config_file, 52 "location of config file", "file" 53 }, 54 { 55 "keytab", 0, arg_string, &keytab_str, 56 "what keytab to use", "keytab" 57 }, 58 { "realm", 'r', arg_string, &realm, 59 "realm to use", "realm" 60 }, 61#ifdef HAVE_DLOPEN 62 { "check-library", 0, arg_string, &check_library, 63 "library to load password check function from", "library" }, 64 { "check-function", 0, arg_string, &check_function, 65 "password check function to load", "function" }, 66 { "policy-libraries", 0, arg_strings, &policy_libraries, 67 "password check function to load", "function" }, 68#endif 69 { "debug", 'd', arg_flag, &debug_flag, 70 "enable debugging" 71 }, 72 { "ports", 'p', arg_string, &port_str, 73 "ports to listen to", "port" }, 74 { "help", 'h', arg_flag, &help_flag }, 75 { "version", 'v', arg_flag, &version_flag } 76}; 77 78static int num_args = sizeof(args) / sizeof(args[0]); 79 80krb5_context context; 81 82static void 83usage(int ret) 84{ 85 arg_printusage (args, num_args, NULL, ""); 86 exit (ret); 87} 88 89int 90main(int argc, char **argv) 91{ 92 krb5_error_code ret; 93 char **files; 94 int optidx = 0; 95 int e, i; 96 krb5_log_facility *logfacility; 97 krb5_keytab keytab; 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 while((e = getarg(args, num_args, argc, argv, &optidx))) 106 warnx("error at argument `%s'", argv[optidx]); 107 108 if (help_flag) 109 usage (0); 110 111 if (version_flag) { 112 print_version(NULL); 113 exit(0); 114 } 115 116 argc -= optidx; 117 argv += optidx; 118 119 if (config_file == NULL) { 120 asprintf(&config_file, "%s/kdc.conf", hdb_db_dir(context)); 121 if (config_file == NULL) 122 errx(1, "out of memory"); 123 } 124 125 ret = krb5_prepend_config_files_default(config_file, &files); 126 if (ret) 127 krb5_err(context, 1, ret, "getting configuration files"); 128 129 ret = krb5_set_config_files(context, files); 130 krb5_free_config_files(files); 131 if(ret) 132 krb5_err(context, 1, ret, "reading configuration files"); 133 134 ret = krb5_openlog(context, "kadmind", &logfacility); 135 if (ret) 136 krb5_err(context, 1, ret, "krb5_openlog"); 137 ret = krb5_set_warn_dest(context, logfacility); 138 if (ret) 139 krb5_err(context, 1, ret, "krb5_set_warn_dest"); 140 141 ret = krb5_kt_register(context, &hdb_kt_ops); 142 if(ret) 143 krb5_err(context, 1, ret, "krb5_kt_register"); 144 145 ret = krb5_kt_resolve(context, keytab_str, &keytab); 146 if(ret) 147 krb5_err(context, 1, ret, "krb5_kt_resolve"); 148 149 kadm5_setup_passwd_quality_check (context, check_library, check_function); 150 151 for (i = 0; i < policy_libraries.num_strings; i++) { 152 ret = kadm5_add_passwd_quality_verifier(context, 153 policy_libraries.strings[i]); 154 if (ret) 155 krb5_err(context, 1, ret, "kadm5_add_passwd_quality_verifier"); 156 } 157 ret = kadm5_add_passwd_quality_verifier(context, NULL); 158 if (ret) 159 krb5_err(context, 1, ret, "kadm5_add_passwd_quality_verifier"); 160 161 { 162 int fd = 0; 163 struct sockaddr_storage __ss; 164 struct sockaddr *sa = (struct sockaddr *)&__ss; 165 socklen_t sa_size = sizeof(__ss); 166 krb5_auth_context ac = NULL; 167 int debug_port; 168 169 if(debug_flag) { 170 if(port_str == NULL) 171 debug_port = krb5_getportbyname (context, "kerberos-adm", 172 "tcp", 749); 173 else 174 debug_port = htons(atoi(port_str)); 175 mini_inetd(debug_port); 176 } else if(roken_getsockname(STDIN_FILENO, sa, &sa_size) < 0 && 177 errno == ENOTSOCK) { 178 parse_ports(context, port_str ? port_str : "+"); 179 pidfile(NULL); 180 start_server(context); 181 } 182 if(realm) 183 krb5_set_default_realm(context, realm); /* XXX */ 184 kadmind_loop(context, ac, keytab, fd); 185 } 186 return 0; 187} 188