155682Smarkm/* 2233294Sstas * Copyright (c) 1997-2007 Kungliga Tekniska H��gskolan 3233294Sstas * (Royal Institute of Technology, Stockholm, Sweden). 4233294Sstas * All rights reserved. 5178825Sdfr * 6233294Sstas * Portions Copyright (c) 2009 Apple Inc. All rights reserved. 755682Smarkm * 8233294Sstas * Redistribution and use in source and binary forms, with or without 9233294Sstas * modification, are permitted provided that the following conditions 10233294Sstas * are met: 1155682Smarkm * 12233294Sstas * 1. Redistributions of source code must retain the above copyright 13233294Sstas * notice, this list of conditions and the following disclaimer. 1455682Smarkm * 15233294Sstas * 2. Redistributions in binary form must reproduce the above copyright 16233294Sstas * notice, this list of conditions and the following disclaimer in the 17233294Sstas * documentation and/or other materials provided with the distribution. 1855682Smarkm * 19233294Sstas * 3. Neither the name of the Institute nor the names of its contributors 20233294Sstas * may be used to endorse or promote products derived from this software 21233294Sstas * without specific prior written permission. 2255682Smarkm * 23233294Sstas * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 24233294Sstas * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25233294Sstas * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26233294Sstas * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 27233294Sstas * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28233294Sstas * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29233294Sstas * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30233294Sstas * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31233294Sstas * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32233294Sstas * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33233294Sstas * SUCH DAMAGE. 3455682Smarkm */ 3555682Smarkm 3655682Smarkm#include "kdc_locl.h" 3755682Smarkm#include <getarg.h> 3855682Smarkm#include <parse_bytes.h> 3955682Smarkm 40178825Sdfrstruct dbinfo { 41178825Sdfr char *realm; 42178825Sdfr char *dbname; 43178825Sdfr char *mkey_file; 44178825Sdfr struct dbinfo *next; 45178825Sdfr}; 4657419Smarkm 47178825Sdfrstatic char *config_file; /* location of kdc config file */ 4857419Smarkm 49178825Sdfrstatic int require_preauth = -1; /* 1 == require preauth for all principals */ 5057419Smarkmstatic char *max_request_str; /* `max_request' as a string */ 5157419Smarkm 52178825Sdfrstatic int disable_des = -1; 5357419Smarkm 54178825Sdfrstatic int builtin_hdb_flag; 55178825Sdfrstatic int help_flag; 56178825Sdfrstatic int version_flag; 5757419Smarkm 5857419Smarkmstatic struct getarg_strings addresses_str; /* addresses to listen on */ 5957419Smarkm 60233294Sstaschar *runas_string; 61233294Sstaschar *chroot_string; 6255682Smarkm 63233294Sstas 6455682Smarkmstatic struct getargs args[] = { 65233294Sstas { 66233294Sstas "config-file", 'c', arg_string, &config_file, 67233294Sstas "location of config file", "file" 6855682Smarkm }, 69233294Sstas { 70233294Sstas "require-preauth", 'p', arg_negative_flag, &require_preauth, 71233294Sstas "don't require pa-data in as-reqs", NULL 7255682Smarkm }, 73233294Sstas { 74233294Sstas "max-request", 0, arg_string, &max_request_str, 7555682Smarkm "max size for a kdc-request", "size" 7655682Smarkm }, 77233294Sstas { "enable-http", 'H', arg_flag, &enable_http, "turn on HTTP support", 78233294Sstas NULL }, 79233294Sstas { "ports", 'P', arg_string, rk_UNCONST(&port_str), 8090926Snectar "ports to listen to", "portspec" 8155682Smarkm }, 82233294Sstas#ifdef SUPPORT_DETACH 83102644Snectar#if DETACH_IS_DEFAULT 84102644Snectar { 85233294Sstas "detach", 'D', arg_negative_flag, &detach_from_console, 86233294Sstas "don't detach from console", NULL 87102644Snectar }, 88102644Snectar#else 89102644Snectar { 90233294Sstas "detach", 0 , arg_flag, &detach_from_console, 91233294Sstas "detach from console", NULL 92102644Snectar }, 93102644Snectar#endif 94233294Sstas#endif 9557419Smarkm { "addresses", 0, arg_strings, &addresses_str, 9657419Smarkm "addresses to listen on", "list of addresses" }, 97178825Sdfr { "disable-des", 0, arg_flag, &disable_des, 98233294Sstas "disable DES", NULL }, 99178825Sdfr { "builtin-hdb", 0, arg_flag, &builtin_hdb_flag, 100233294Sstas "list builtin hdb backends", NULL}, 101233294Sstas { "runas-user", 0, arg_string, &runas_string, 102233294Sstas "run as this user when connected to network", NULL 103233294Sstas }, 104233294Sstas { "chroot", 0, arg_string, &chroot_string, 105233294Sstas "chroot directory to run in", NULL 106233294Sstas }, 107233294Sstas { "help", 'h', arg_flag, &help_flag, NULL, NULL }, 108233294Sstas { "version", 'v', arg_flag, &version_flag, NULL, NULL } 10955682Smarkm}; 11055682Smarkm 11155682Smarkmstatic int num_args = sizeof(args) / sizeof(args[0]); 11255682Smarkm 11355682Smarkmstatic void 11455682Smarkmusage(int ret) 11555682Smarkm{ 11655682Smarkm arg_printusage (args, num_args, NULL, ""); 11755682Smarkm exit (ret); 11855682Smarkm} 11955682Smarkm 12055682Smarkmstatic void 121178825Sdfradd_one_address (krb5_context context, const char *str, int first) 12255682Smarkm{ 12357419Smarkm krb5_error_code ret; 12457419Smarkm krb5_addresses tmp; 12557419Smarkm 12657419Smarkm ret = krb5_parse_address (context, str, &tmp); 12757419Smarkm if (ret) 12857419Smarkm krb5_err (context, 1, ret, "parse_address `%s'", str); 12957419Smarkm if (first) 13057419Smarkm krb5_copy_addresses(context, &tmp, &explicit_addresses); 13157419Smarkm else 13257419Smarkm krb5_append_addresses(context, &explicit_addresses, &tmp); 13357419Smarkm krb5_free_addresses (context, &tmp); 13457419Smarkm} 13557419Smarkm 136178825Sdfrkrb5_kdc_configuration * 137178825Sdfrconfigure(krb5_context context, int argc, char **argv) 13855682Smarkm{ 139178825Sdfr krb5_kdc_configuration *config; 140178825Sdfr krb5_error_code ret; 141178825Sdfr int optidx = 0; 14255682Smarkm const char *p; 143233294Sstas 144178825Sdfr while(getarg(args, num_args, argc, argv, &optidx)) 145178825Sdfr warnx("error at argument `%s'", argv[optidx]); 14655682Smarkm 14755682Smarkm if(help_flag) 14855682Smarkm usage (0); 14955682Smarkm 15055682Smarkm if (version_flag) { 15155682Smarkm print_version(NULL); 15255682Smarkm exit(0); 15355682Smarkm } 15455682Smarkm 155178825Sdfr if (builtin_hdb_flag) { 156178825Sdfr char *list; 157178825Sdfr ret = hdb_list_builtin(context, &list); 158178825Sdfr if (ret) 159178825Sdfr krb5_err(context, 1, ret, "listing builtin hdb backends"); 160178825Sdfr printf("builtin hdb backends: %s\n", list); 161178825Sdfr free(list); 162178825Sdfr exit(0); 163178825Sdfr } 16455682Smarkm 165178825Sdfr argc -= optidx; 166178825Sdfr argv += optidx; 167178825Sdfr 16855682Smarkm if (argc != 0) 16955682Smarkm usage(1); 170233294Sstas 171102644Snectar { 172102644Snectar char **files; 173178825Sdfr 174178825Sdfr if (config_file == NULL) { 175178825Sdfr asprintf(&config_file, "%s/kdc.conf", hdb_db_dir(context)); 176178825Sdfr if (config_file == NULL) 177178825Sdfr errx(1, "out of memory"); 178178825Sdfr } 179178825Sdfr 180178825Sdfr ret = krb5_prepend_config_files_default(config_file, &files); 181178825Sdfr if (ret) 182178825Sdfr krb5_err(context, 1, ret, "getting configuration files"); 183233294Sstas 184102644Snectar ret = krb5_set_config_files(context, files); 185102644Snectar krb5_free_config_files(files); 186233294Sstas if(ret) 187102644Snectar krb5_err(context, 1, ret, "reading configuration files"); 188102644Snectar } 189102644Snectar 190178825Sdfr ret = krb5_kdc_get_config(context, &config); 191178825Sdfr if (ret) 192178825Sdfr krb5_err(context, 1, ret, "krb5_kdc_default_config"); 193178825Sdfr 194233294Sstas kdc_openlog(context, "kdc", config); 195178825Sdfr 196178825Sdfr ret = krb5_kdc_set_dbinfo(context, config); 197178825Sdfr if (ret) 198178825Sdfr krb5_err(context, 1, ret, "krb5_kdc_set_dbinfo"); 199178825Sdfr 200127808Snectar if(max_request_str) 201233294Sstas max_request_tcp = max_request_udp = parse_bytes(max_request_str, NULL); 20255682Smarkm 203233294Sstas if(max_request_tcp == 0){ 20455682Smarkm p = krb5_config_get_string (context, 205102644Snectar NULL, 20655682Smarkm "kdc", 20755682Smarkm "max-request", 20855682Smarkm NULL); 20955682Smarkm if(p) 210233294Sstas max_request_tcp = max_request_udp = parse_bytes(p, NULL); 21155682Smarkm } 212233294Sstas 213178825Sdfr if(require_preauth != -1) 214178825Sdfr config->require_preauth = require_preauth; 21555682Smarkm 21655682Smarkm if(port_str == NULL){ 217102644Snectar p = krb5_config_get_string(context, NULL, "kdc", "ports", NULL); 21855682Smarkm if (p != NULL) 21955682Smarkm port_str = strdup(p); 22055682Smarkm } 22157419Smarkm 22257419Smarkm explicit_addresses.len = 0; 22357419Smarkm 22457419Smarkm if (addresses_str.num_strings) { 22557419Smarkm int i; 22657419Smarkm 22757419Smarkm for (i = 0; i < addresses_str.num_strings; ++i) 228178825Sdfr add_one_address (context, addresses_str.strings[i], i == 0); 22978527Sassar free_getarg_strings (&addresses_str); 23057419Smarkm } else { 231102644Snectar char **foo = krb5_config_get_strings (context, NULL, 23257419Smarkm "kdc", "addresses", NULL); 23357419Smarkm 23457419Smarkm if (foo != NULL) { 235178825Sdfr add_one_address (context, *foo++, TRUE); 23657419Smarkm while (*foo) 237178825Sdfr add_one_address (context, *foo++, FALSE); 23857419Smarkm } 23957419Smarkm } 24057419Smarkm 24155682Smarkm if(enable_http == -1) 242233294Sstas enable_http = krb5_config_get_bool(context, NULL, "kdc", 24355682Smarkm "enable-http", NULL); 24472445Sassar 245178825Sdfr if(request_log == NULL) 246233294Sstas request_log = krb5_config_get_string(context, NULL, 247233294Sstas "kdc", 248233294Sstas "kdc-request-log", 249178825Sdfr NULL); 25055682Smarkm 251233294Sstas if (krb5_config_get_string(context, NULL, "kdc", 252178825Sdfr "enforce-transited-policy", NULL)) 253178825Sdfr krb5_errx(context, 1, "enforce-transited-policy deprecated, " 254178825Sdfr "use [kdc]transited-policy instead"); 25555682Smarkm 256233294Sstas#ifdef SUPPORT_DETACH 257233294Sstas if(detach_from_console == -1) 258233294Sstas detach_from_console = krb5_config_get_bool_default(context, NULL, 259102644Snectar DETACH_IS_DEFAULT, 260102644Snectar "kdc", 261102644Snectar "detach", NULL); 262233294Sstas#endif /* SUPPORT_DETACH */ 263178825Sdfr 264233294Sstas if(max_request_tcp == 0) 265233294Sstas max_request_tcp = 64 * 1024; 266233294Sstas if(max_request_udp == 0) 267233294Sstas max_request_udp = 64 * 1024; 268178825Sdfr 26955682Smarkm if (port_str == NULL) 27055682Smarkm port_str = "+"; 271178825Sdfr 272178825Sdfr if(disable_des == -1) 273233294Sstas disable_des = krb5_config_get_bool_default(context, NULL, 274178825Sdfr FALSE, 275178825Sdfr "kdc", 276178825Sdfr "disable-des", NULL); 277178825Sdfr if(disable_des) { 278178825Sdfr krb5_enctype_disable(context, ETYPE_DES_CBC_CRC); 279178825Sdfr krb5_enctype_disable(context, ETYPE_DES_CBC_MD4); 280178825Sdfr krb5_enctype_disable(context, ETYPE_DES_CBC_MD5); 281178825Sdfr krb5_enctype_disable(context, ETYPE_DES_CBC_NONE); 282178825Sdfr krb5_enctype_disable(context, ETYPE_DES_CFB64_NONE); 283178825Sdfr krb5_enctype_disable(context, ETYPE_DES_PCBC_NONE); 28455682Smarkm } 285178825Sdfr 286178825Sdfr krb5_kdc_windc_init(context); 287178825Sdfr 288233294Sstas krb5_kdc_pkinit_config(context, config); 289233294Sstas 290178825Sdfr return config; 29155682Smarkm} 292