1/* 2 * Copyright (c) 1997-2004 Kungliga Tekniska Högskolan 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#include <gssapi.h> 36#include <gssapi_krb5.h> 37#include <gssapi_spi.h> 38 39 40 41#ifdef __APPLE__ 42#include <sandbox.h> 43 44int sandbox_flag = 1; 45#endif 46 47krb5_error_code _gsskrb5_init (krb5_context *); 48 49static char *check_library = NULL; 50static char *check_function = NULL; 51static getarg_strings policy_libraries = { 0, NULL }; 52static char *config_file; 53static char sHDB[] = "HDB:"; 54static char *keytab_str = sHDB; 55static int help_flag; 56static int version_flag; 57static int debug_flag; 58static char *port_str; 59char *realm; 60 61static struct getargs args[] = { 62 { 63 "config-file", 'c', arg_string, &config_file, 64 "location of config file", "file" 65 }, 66 { 67 "keytab", 0, arg_string, &keytab_str, 68 "what keytab to use", "keytab" 69 }, 70 { "realm", 'r', arg_string, &realm, 71 "realm to use", "realm" 72 }, 73#ifdef HAVE_DLOPEN 74 { "check-library", 0, arg_string, &check_library, 75 "library to load password check function from", "library" }, 76 { "check-function", 0, arg_string, &check_function, 77 "password check function to load", "function" }, 78 { "policy-libraries", 0, arg_strings, &policy_libraries, 79 "password check function to load", "function" }, 80#endif 81 { "debug", 'd', arg_flag, &debug_flag, 82 "enable debugging", NULL 83 }, 84 { "ports", 'p', arg_string, &port_str, 85 "ports to listen to", "port" }, 86#ifdef __APPLE__ 87 { "sandbox", 0, arg_negative_flag, &sandbox_flag, 88 "use sandbox or not" 89 }, 90#endif /* __APPLE__ */ 91 { "help", 'h', arg_flag, &help_flag }, 92 { "version", 'v', arg_flag, &version_flag } 93}; 94 95static int num_args = sizeof(args) / sizeof(args[0]); 96 97krb5_context context; 98 99static void 100usage(int ret) 101{ 102 arg_printusage (args, num_args, NULL, ""); 103 exit (ret); 104} 105 106static void 107setup_context(krb5_context ctx) 108{ 109 krb5_log_facility *logfacility; 110 krb5_error_code ret; 111 char **files; 112 113 if (config_file == NULL) { 114 asprintf(&config_file, "%s/kdc.conf", hdb_db_dir(ctx)); 115 if (config_file == NULL) 116 errx(1, "out of memory"); 117 } 118 119 ret = krb5_prepend_config_files_default(config_file, &files); 120 if (ret) 121 krb5_err(ctx, 1, ret, "getting configuration files"); 122 123 ret = krb5_set_config_files(ctx, files); 124 krb5_free_config_files(files); 125 if(ret) 126 krb5_err(ctx, 1, ret, "reading configuration files"); 127 128 ret = krb5_openlog(ctx, "kadmind", &logfacility); 129 if (ret) 130 krb5_err(ctx, 1, ret, "krb5_openlog"); 131 ret = krb5_set_warn_dest(ctx, logfacility); 132 if (ret) 133 krb5_err(ctx, 1, ret, "krb5_set_warn_dest"); 134 135 ret = krb5_kt_register(ctx, &hdb_kt_ops); 136 if(ret) 137 krb5_err(ctx, 1, ret, "krb5_kt_register"); 138} 139 140int 141main(int argc, char **argv) 142{ 143 krb5_error_code ret; 144 int optidx = 0; 145 int i; 146 krb5_keytab keytab; 147 krb5_socket_t sfd = rk_INVALID_SOCKET; 148 149 setprogname(argv[0]); 150 151 ret = krb5_init_context(&context); 152 if (ret) 153 errx (1, "krb5_init_context failed: %d", ret); 154 155 if (getarg(args, num_args, argc, argv, &optidx)) { 156 warnx("error at argument `%s'", argv[optidx]); 157 usage(1); 158 } 159 160 if (help_flag) 161 usage (0); 162 163 if (version_flag) { 164 print_version(NULL); 165 exit(0); 166 } 167 168 setup_context(context); 169 170 /* 171 * Now, do the same for the gssapi thread we are going to be running in 172 */ 173 { 174 krb5_context gssctx; 175 ret = _gsskrb5_init(&gssctx); 176 if (ret) 177 errx(1, "failed to setup gssapi context"); 178 setup_context(gssctx); 179 krb5_gss_register_acceptor_identity("HDB:"); 180 } 181 182 ret = krb5_kt_resolve(context, keytab_str, &keytab); 183 if(ret) 184 krb5_err(context, 1, ret, "krb5_kt_resolve"); 185 186 kadm5_setup_passwd_quality_check (context, check_library, check_function); 187 188 for (i = 0; i < policy_libraries.num_strings; i++) { 189 ret = kadm5_add_passwd_quality_verifier(context, 190 policy_libraries.strings[i]); 191 if (ret) 192 krb5_err(context, 1, ret, "kadm5_add_passwd_quality_verifier"); 193 } 194 ret = kadm5_add_passwd_quality_verifier(context, NULL); 195 if (ret) 196 krb5_err(context, 1, ret, "kadm5_add_passwd_quality_verifier"); 197 198#ifdef ___APPLE__ 199 if (sandbox_flag) { 200 char *errorstring; 201 ret = sandbox_init("kadmind", SANDBOX_NAMED, &errorstring); 202 if (ret) 203 errx(1, "sandbox_init failed: %d: %s", ret, errorstring); 204 } 205#endif 206 207 if(debug_flag) { 208 int debug_port; 209 210 if(port_str == NULL) 211 debug_port = krb5_getportbyname (context, "kerberos-adm", 212 "tcp", 749); 213 else 214 debug_port = htons(atoi(port_str)); 215 mini_inetd(debug_port, &sfd); 216 } else { 217#ifdef _WIN32 218 pidfile(NULL); 219 start_server(context, port_str); 220#else 221 struct sockaddr_storage __ss; 222 struct sockaddr *sa = (struct sockaddr *)&__ss; 223 socklen_t sa_size = sizeof(__ss); 224 225 /* 226 * Check if we are running inside inetd or not, if not, start 227 * our own server. 228 */ 229 230 if(roken_getsockname(STDIN_FILENO, sa, &sa_size) < 0 && 231 rk_SOCK_ERRNO == ENOTSOCK) { 232 pidfile(NULL); 233 start_server(context, port_str); 234 } 235#endif /* _WIN32 */ 236 sfd = STDIN_FILENO; 237 } 238 239 if(realm) 240 krb5_set_default_realm(context, realm); /* XXX */ 241 242 kadmind_loop(context, keytab, sfd); 243 244 return 0; 245} 246