1 /* $NetBSD: kadmind.c,v 1.3 2023/06/19 21:41:41 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1997-2004 Kungliga Tekniska Hgskolan 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[] = "HDBGET:"; 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 int detach_from_console = -1; 51 int daemon_child = -1; 52 53 static struct getargs args[] = { 54 { 55 "config-file", 'c', arg_string, &config_file, 56 "location of config file", "file" 57 }, 58 { 59 "keytab", 0, arg_string, &keytab_str, 60 "what keytab to use", "keytab" 61 }, 62 { "realm", 'r', arg_string, &realm, 63 "realm to use", "realm" 64 }, 65 #ifdef HAVE_DLOPEN 66 { "check-library", 0, arg_string, &check_library, 67 "library to load password check function from", "library" }, 68 { "check-function", 0, arg_string, &check_function, 69 "password check function to load", "function" }, 70 { "policy-libraries", 0, arg_strings, &policy_libraries, 71 "password check function to load", "function" }, 72 #endif 73 { "debug", 'd', arg_flag, &debug_flag, 74 "enable debugging", NULL 75 }, 76 { 77 "detach", 0 , arg_flag, &detach_from_console, 78 "detach from console", NULL 79 }, 80 { 81 "daemon-child", 0 , arg_integer, &daemon_child, 82 "private argument, do not use", NULL 83 }, 84 { "ports", 'p', arg_string, &port_str, 85 "ports to listen to", "port" }, 86 { "help", 'h', arg_flag, &help_flag, NULL, NULL }, 87 { "version", 'v', arg_flag, &version_flag, NULL, NULL } 88 }; 89 90 static int num_args = sizeof(args) / sizeof(args[0]); 91 92 krb5_context context; 93 94 static void 95 usage(int ret) 96 { 97 arg_printusage (args, num_args, NULL, ""); 98 exit (ret); 99 } 100 101 int 102 main(int argc, char **argv) 103 { 104 krb5_error_code ret; 105 char **files; 106 int optidx = 0; 107 int i; 108 krb5_log_facility *logfacility; 109 krb5_keytab keytab; 110 krb5_socket_t sfd = rk_INVALID_SOCKET; 111 112 setprogname(argv[0]); 113 114 if (getarg(args, num_args, argc, argv, &optidx)) { 115 warnx("error at argument `%s'", argv[optidx]); 116 usage(1); 117 } 118 119 if (help_flag) 120 usage (0); 121 122 if (version_flag) { 123 print_version(NULL); 124 exit(0); 125 } 126 127 if (detach_from_console > 0 && daemon_child == -1) 128 roken_detach_prep(argc, argv, "--daemon-child"); 129 130 ret = krb5_init_context(&context); 131 if (ret) 132 errx (1, "krb5_init_context failed: %d", ret); 133 134 argc -= optidx; 135 #ifndef __clang_analyzer__ 136 argv += optidx; 137 #endif 138 if (argc != 0) 139 usage(1); 140 141 if (config_file == NULL) { 142 int aret; 143 144 aret = asprintf(&config_file, "%s/kdc.conf", hdb_db_dir(context)); 145 if (aret == -1) 146 errx(1, "out of memory"); 147 } 148 149 ret = krb5_prepend_config_files_default(config_file, &files); 150 if (ret) 151 krb5_err(context, 1, ret, "getting configuration files"); 152 153 ret = krb5_set_config_files(context, files); 154 krb5_free_config_files(files); 155 if(ret) 156 krb5_err(context, 1, ret, "reading configuration files"); 157 158 ret = krb5_openlog(context, "kadmind", &logfacility); 159 if (ret) 160 krb5_err(context, 1, ret, "krb5_openlog"); 161 ret = krb5_set_warn_dest(context, logfacility); 162 if (ret) 163 krb5_err(context, 1, ret, "krb5_set_warn_dest"); 164 165 ret = krb5_kt_register(context, &hdb_get_kt_ops); 166 if(ret) 167 krb5_err(context, 1, ret, "krb5_kt_register"); 168 169 ret = krb5_kt_resolve(context, keytab_str, &keytab); 170 if(ret) 171 krb5_err(context, 1, ret, "krb5_kt_resolve"); 172 173 kadm5_setup_passwd_quality_check (context, check_library, check_function); 174 175 for (i = 0; i < policy_libraries.num_strings; i++) { 176 ret = kadm5_add_passwd_quality_verifier(context, 177 policy_libraries.strings[i]); 178 if (ret) 179 krb5_err(context, 1, ret, "kadm5_add_passwd_quality_verifier"); 180 } 181 ret = kadm5_add_passwd_quality_verifier(context, NULL); 182 if (ret) 183 krb5_err(context, 1, ret, "kadm5_add_passwd_quality_verifier"); 184 185 if(debug_flag) { 186 int debug_port; 187 188 if(port_str == NULL) 189 debug_port = krb5_getportbyname (context, "kerberos-adm", 190 "tcp", 749); 191 else 192 debug_port = htons(atoi(port_str)); 193 mini_inetd(debug_port, &sfd); 194 } else { 195 #ifdef _WIN32 196 start_server(context, port_str); 197 #else 198 struct sockaddr_storage __ss; 199 struct sockaddr *sa = (struct sockaddr *)&__ss; 200 socklen_t sa_size = sizeof(__ss); 201 202 /* 203 * Check if we are running inside inetd or not, if not, start 204 * our own server. 205 */ 206 207 if(roken_getsockname(STDIN_FILENO, sa, &sa_size) < 0 && 208 rk_SOCK_ERRNO == ENOTSOCK) { 209 start_server(context, port_str); 210 } 211 #endif /* _WIN32 */ 212 sfd = STDIN_FILENO; 213 } 214 215 if(realm) 216 krb5_set_default_realm(context, realm); /* XXX */ 217 218 kadmind_loop(context, keytab, sfd); 219 220 return 0; 221 } 222
Indexes created Sat Feb 28 05:31:39 UTC 2026