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