/* $NetBSD: kadmind.c,v 1.2.22.1 2023/08/11 13:39:55 martin Exp $ */ /* * Copyright (c) 1997-2004 Kungliga Tekniska Högskolan * (Royal Institute of Technology, Stockholm, Sweden). * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * 3. Neither the name of the Institute nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include "kadmin_locl.h" static char *check_library = NULL; static char *check_function = NULL; static getarg_strings policy_libraries = { 0, NULL }; static char *config_file; static char sHDB[] = "HDBGET:"; static char *keytab_str = sHDB; static int help_flag; static int version_flag; static int debug_flag; static char *port_str; char *realm; static int detach_from_console = -1; int daemon_child = -1; static struct getargs args[] = { { "config-file", 'c', arg_string, &config_file, "location of config file", "file" }, { "keytab", 0, arg_string, &keytab_str, "what keytab to use", "keytab" }, { "realm", 'r', arg_string, &realm, "realm to use", "realm" }, #ifdef HAVE_DLOPEN { "check-library", 0, arg_string, &check_library, "library to load password check function from", "library" }, { "check-function", 0, arg_string, &check_function, "password check function to load", "function" }, { "policy-libraries", 0, arg_strings, &policy_libraries, "password check function to load", "function" }, #endif { "debug", 'd', arg_flag, &debug_flag, "enable debugging", NULL }, { "detach", 0 , arg_flag, &detach_from_console, "detach from console", NULL }, { "daemon-child", 0 , arg_integer, &daemon_child, "private argument, do not use", NULL }, { "ports", 'p', arg_string, &port_str, "ports to listen to", "port" }, { "help", 'h', arg_flag, &help_flag, NULL, NULL }, { "version", 'v', arg_flag, &version_flag, NULL, NULL } }; static int num_args = sizeof(args) / sizeof(args[0]); krb5_context context; static void usage(int ret) { arg_printusage (args, num_args, NULL, ""); exit (ret); } int main(int argc, char **argv) { krb5_error_code ret; char **files; int optidx = 0; int i; krb5_log_facility *logfacility; krb5_keytab keytab; krb5_socket_t sfd = rk_INVALID_SOCKET; setprogname(argv[0]); if (getarg(args, num_args, argc, argv, &optidx)) { warnx("error at argument `%s'", argv[optidx]); usage(1); } if (help_flag) usage (0); if (version_flag) { print_version(NULL); exit(0); } if (detach_from_console > 0 && daemon_child == -1) roken_detach_prep(argc, argv, "--daemon-child"); ret = krb5_init_context(&context); if (ret) errx (1, "krb5_init_context failed: %d", ret); argc -= optidx; #ifndef __clang_analyzer__ argv += optidx; #endif if (argc != 0) usage(1); if (config_file == NULL) { int aret; aret = asprintf(&config_file, "%s/kdc.conf", hdb_db_dir(context)); if (aret == -1) errx(1, "out of memory"); } ret = krb5_prepend_config_files_default(config_file, &files); if (ret) krb5_err(context, 1, ret, "getting configuration files"); ret = krb5_set_config_files(context, files); krb5_free_config_files(files); if(ret) krb5_err(context, 1, ret, "reading configuration files"); ret = krb5_openlog(context, "kadmind", &logfacility); if (ret) krb5_err(context, 1, ret, "krb5_openlog"); ret = krb5_set_warn_dest(context, logfacility); if (ret) krb5_err(context, 1, ret, "krb5_set_warn_dest"); ret = krb5_kt_register(context, &hdb_get_kt_ops); if(ret) krb5_err(context, 1, ret, "krb5_kt_register"); ret = krb5_kt_resolve(context, keytab_str, &keytab); if(ret) krb5_err(context, 1, ret, "krb5_kt_resolve"); kadm5_setup_passwd_quality_check (context, check_library, check_function); for (i = 0; i < policy_libraries.num_strings; i++) { ret = kadm5_add_passwd_quality_verifier(context, policy_libraries.strings[i]); if (ret) krb5_err(context, 1, ret, "kadm5_add_passwd_quality_verifier"); } ret = kadm5_add_passwd_quality_verifier(context, NULL); if (ret) krb5_err(context, 1, ret, "kadm5_add_passwd_quality_verifier"); if(debug_flag) { int debug_port; if(port_str == NULL) debug_port = krb5_getportbyname (context, "kerberos-adm", "tcp", 749); else debug_port = htons(atoi(port_str)); mini_inetd(debug_port, &sfd); } else { #ifdef _WIN32 start_server(context, port_str); #else struct sockaddr_storage __ss; struct sockaddr *sa = (struct sockaddr *)&__ss; socklen_t sa_size = sizeof(__ss); /* * Check if we are running inside inetd or not, if not, start * our own server. */ if(roken_getsockname(STDIN_FILENO, sa, &sa_size) < 0 && rk_SOCK_ERRNO == ENOTSOCK) { start_server(context, port_str); } #endif /* _WIN32 */ sfd = STDIN_FILENO; } if(realm) krb5_set_default_realm(context, realm); /* XXX */ kadmind_loop(context, keytab, sfd); return 0; }