kadmin/kadmin.c

   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 "kadmin-commands.h"
  36 #include <sl.h>
  37
  38 RCSID("$Id$");
  39
  40 static char *config_file;
  41 static char *keyfile;
  42 int local_flag;
  43 static int ad_flag;
  44 static int help_flag;
  45 static int version_flag;
  46 static char *realm;
  47 static char *admin_server;
  48 static int server_port = 0;
  49 static char *client_name;
  50 static char *keytab;
  51 static char *check_library  = NULL;
  52 static char *check_function = NULL;
  53 static getarg_strings policy_libraries = { 0, NULL };
  54
  55 static struct getargs args[] = {
  56     {   "principal",    'p',    arg_string,     &client_name,
  57         "principal to authenticate as" },
  58     {   "keytab",       'K',    arg_string,     &keytab,
  59         "keytab for authentication principal" },
  60     {
  61         "config-file",  'c',    arg_string,     &config_file,
  62         "location of config file",      "file"
  63     },
  64     {
  65         "key-file",     'k',    arg_string, &keyfile,
  66         "location of master key file", "file"
  67     },
  68     {
  69         "realm",        'r',    arg_string,   &realm,
  70         "realm to use", "realm"
  71     },
  72     {
  73         "admin-server", 'a',    arg_string,   &admin_server,
  74         "server to contact", "host"
  75     },
  76     {
  77         "server-port",  's',    arg_integer,   &server_port,
  78         "port to use", "port number"
  79     },
  80     {   "ad",           0, arg_flag, &ad_flag, "active directory admin mode" },
  81 #ifdef HAVE_DLOPEN
  82     { "check-library", 0, arg_string, &check_library,
  83       "library to load password check function from", "library" },
  84     { "check-function", 0, arg_string, &check_function,
  85       "password check function to load", "function" },
  86     { "policy-libraries", 0, arg_strings, &policy_libraries,
  87       "password check function to load", "function" },
  88 #endif
  89     {   "local", 'l', arg_flag, &local_flag, "local admin mode" },
  90     {   "help",         'h',    arg_flag,   &help_flag },
  91     {   "version",      'v',    arg_flag,   &version_flag }
  92 };
  93
  94 static int num_args = sizeof(args) / sizeof(args[0]);
  95
  96
  97 krb5_context context;
  98 void *kadm_handle;
  99
 100 int
 101 help(void *opt, int argc, char **argv)
 102 {
 103     sl_slc_help(commands, argc, argv);
 104     return 0;
 105 }
 106
 107 static int exit_seen = 0;
 108
 109 int
 110 exit_kadmin (void *opt, int argc, char **argv)
 111 {
 112     exit_seen = 1;
 113     return 0;
 114 }
 115
 116 static void
 117 usage(int ret)
 118 {
 119     arg_printusage (args, num_args, NULL, "[command]");
 120     exit (ret);
 121 }
 122
 123 int
 124 get_privs(void *opt, int argc, char **argv)
 125 {
 126     uint32_t privs;
 127     char str[128];
 128     kadm5_ret_t ret;
 129
 130     ret = kadm5_get_privs(kadm_handle, &privs);
 131     if(ret)
 132         krb5_warn(context, ret, "kadm5_get_privs");
 133     else{
 134         ret =_kadm5_privs_to_string(privs, str, sizeof(str));
 135         if (ret == 0)
 136             printf("%s\n", str);
 137         else
 138             printf("privs: 0x%x\n", (unsigned int)privs);
 139     }
 140     return 0;
 141 }
 142
 143 int
 144 main(int argc, char **argv)
 145 {
 146     krb5_error_code ret;
 147     char **files;
 148     kadm5_config_params conf;
 149     int optidx = 0;
 150     int exit_status = 0;
 151
 152     setprogname(argv[0]);
 153
 154     ret = krb5_init_context(&context);
 155     if (ret)
 156         errx (1, "krb5_init_context failed: %d", ret);
 157
 158     if(getarg(args, num_args, argc, argv, &optidx))
 159         usage(1);
 160
 161     if (help_flag)
 162         usage (0);
 163
 164     if (version_flag) {
 165         print_version(NULL);
 166         exit(0);
 167     }
 168
 169     argc -= optidx;
 170     argv += optidx;
 171
 172     if (config_file == NULL) {
 173         asprintf(&config_file, "%s/kdc.conf", hdb_db_dir(context));
 174         if (config_file == NULL)
 175             errx(1, "out of memory");
 176     }
 177
 178     ret = krb5_prepend_config_files_default(config_file, &files);
 179     if (ret)
 180         krb5_err(context, 1, ret, "getting configuration files");
 181
 182     ret = krb5_set_config_files(context, files);
 183     krb5_free_config_files(files);
 184     if(ret)
 185         krb5_err(context, 1, ret, "reading configuration files");
 186
 187     memset(&conf, 0, sizeof(conf));
 188     if(realm) {
 189         krb5_set_default_realm(context, realm); /* XXX should be fixed
 190                                                    some other way */
 191         conf.realm = realm;
 192         conf.mask |= KADM5_CONFIG_REALM;
 193     }
 194
 195     if (admin_server) {
 196         conf.admin_server = admin_server;
 197         conf.mask |= KADM5_CONFIG_ADMIN_SERVER;
 198     }
 199
 200     if (server_port) {
 201         conf.kadmind_port = htons(server_port);
 202         conf.mask |= KADM5_CONFIG_KADMIND_PORT;
 203     }
 204
 205     if (keyfile) {
 206         conf.stash_file = keyfile;
 207         conf.mask |= KADM5_CONFIG_STASH_FILE;
 208     }
 209
 210     if(local_flag) {
 211         int i;
 212
 213         kadm5_setup_passwd_quality_check (context,
 214                                           check_library, check_function);
 215
 216         for (i = 0; i < policy_libraries.num_strings; i++) {
 217             ret = kadm5_add_passwd_quality_verifier(context,
 218                                                     policy_libraries.strings[i]);
 219             if (ret)
 220                 krb5_err(context, 1, ret, "kadm5_add_passwd_quality_verifier");
 221         }
 222         ret = kadm5_add_passwd_quality_verifier(context, NULL);
 223         if (ret)
 224             krb5_err(context, 1, ret, "kadm5_add_passwd_quality_verifier");
 225
 226         ret = kadm5_s_init_with_password_ctx(context,
 227                                              KADM5_ADMIN_SERVICE,
 228                                              NULL,
 229                                              KADM5_ADMIN_SERVICE,
 230                                              &conf, 0, 0,
 231                                              &kadm_handle);
 232     } else if (ad_flag) {
 233         if (client_name == NULL)
 234             krb5_errx(context, 1, "keytab mode require principal name");
 235         ret = kadm5_ad_init_with_password_ctx(context,
 236                                               client_name,
 237                                               NULL,
 238                                               KADM5_ADMIN_SERVICE,
 239                                               &conf, 0, 0,
 240                                               &kadm_handle);
 241     } else if (keytab) {
 242         if (client_name == NULL)
 243             krb5_errx(context, 1, "keytab mode require principal name");
 244         ret = kadm5_c_init_with_skey_ctx(context,
 245                                          client_name,
 246                                          keytab,
 247                                          KADM5_ADMIN_SERVICE,
 248                                          &conf, 0, 0,
 249                                          &kadm_handle);
 250     } else
 251         ret = kadm5_c_init_with_password_ctx(context,
 252                                              client_name,
 253                                              NULL,
 254                                              KADM5_ADMIN_SERVICE,
 255                                              &conf, 0, 0,
 256                                              &kadm_handle);
 257
 258     if(ret)
 259         krb5_err(context, 1, ret, "kadm5_init_with_password");
 260
 261     signal(SIGINT, SIG_IGN); /* ignore signals for now, the sl command
 262                                 parser will handle SIGINT its own way;
 263                                 we should really take care of this in
 264                                 each function, f.i `get' might be
 265                                 interruptable, but not `create' */
 266     if (argc != 0) {
 267         ret = sl_command (commands, argc, argv);
 268         if(ret == -1)
 269             krb5_warnx (context, "unrecognized command: %s", argv[0]);
 270         else if (ret == -2)
 271             ret = 0;
 272         if(ret != 0)
 273             exit_status = 1;
 274     } else {
 275         while(!exit_seen) {
 276             ret = sl_command_loop(commands, "kadmin> ", NULL);
 277             if (ret == -2)
 278                 exit_seen = 1;
 279             else if (ret != 0)
 280                 exit_status = 1;
 281         }
 282     }
 283
 284     kadm5_destroy(kadm_handle);
 285     krb5_free_context(context);
 286     return exit_status;
 287 }