crypto/dist/heimdal/kadmin/ank.c

   1 /*
   2  * Copyright (c) 1997-2006 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
  37 __RCSID("$Heimdal: ank.c 16658 2006-01-25 12:29:46Z lha $"
  38         "$NetBSD$");
  39
  40 /*
  41  * fetch the default principal corresponding to `princ'
  42  */
  43
  44 static krb5_error_code
  45 get_default (kadm5_server_context *context,
  46              krb5_principal princ,
  47              kadm5_principal_ent_t default_ent)
  48 {
  49     krb5_error_code ret;
  50     krb5_principal def_principal;
  51     krb5_realm *realm = krb5_princ_realm(context->context, princ);
  52
  53     ret = krb5_make_principal (context->context, &def_principal,
  54                                *realm, "default", NULL);
  55     if (ret)
  56         return ret;
  57     ret = kadm5_get_principal (context, def_principal, default_ent,
  58                                KADM5_PRINCIPAL_NORMAL_MASK);
  59     krb5_free_principal (context->context, def_principal);
  60     return ret;
  61 }
  62
  63 /*
  64  * Add the principal `name' to the database.
  65  * Prompt for all data not given by the input parameters.
  66  */
  67
  68 static krb5_error_code
  69 add_one_principal (const char *name,
  70                    int rand_key,
  71                    int rand_password,
  72                    int use_defaults,
  73                    char *password,
  74                    krb5_key_data *key_data,
  75                    const char *max_ticket_life,
  76                    const char *max_renewable_life,
  77                    const char *attributes,
  78                    const char *expiration,
  79                    const char *pw_expiration)
  80 {
  81     krb5_error_code ret;
  82     kadm5_principal_ent_rec princ, defrec;
  83     kadm5_principal_ent_rec *default_ent = NULL;
  84     krb5_principal princ_ent = NULL;
  85     int mask = 0;
  86     int default_mask = 0;
  87     char pwbuf[1024];
  88
  89     memset(&princ, 0, sizeof(princ));
  90     ret = krb5_parse_name(context, name, &princ_ent);
  91     if (ret) {
  92         krb5_warn(context, ret, "krb5_parse_name");
  93         return ret;
  94     }
  95     princ.principal = princ_ent;
  96     mask |= KADM5_PRINCIPAL;
  97
  98     ret = set_entry(context, &princ, &mask,
  99                     max_ticket_life, max_renewable_life,
 100                     expiration, pw_expiration, attributes);
 101     if (ret)
 102         goto out;
 103
 104     default_ent = &defrec;
 105     ret = get_default (kadm_handle, princ_ent, default_ent);
 106     if (ret) {
 107         default_ent  = NULL;
 108         default_mask = 0;
 109     } else {
 110         default_mask = KADM5_ATTRIBUTES | KADM5_MAX_LIFE | KADM5_MAX_RLIFE |
 111             KADM5_PRINC_EXPIRE_TIME | KADM5_PW_EXPIRATION;
 112     }
 113
 114     if(use_defaults)
 115         set_defaults(&princ, &mask, default_ent, default_mask);
 116     else
 117         if(edit_entry(&princ, &mask, default_ent, default_mask))
 118             goto out;
 119     if(rand_key || key_data) {
 120         princ.attributes |= KRB5_KDB_DISALLOW_ALL_TIX;
 121         mask |= KADM5_ATTRIBUTES;
 122         random_password (pwbuf, sizeof(pwbuf));
 123         password = pwbuf;
 124     } else if (rand_password) {
 125         random_password (pwbuf, sizeof(pwbuf));
 126         password = pwbuf;
 127     } else if(password == NULL) {
 128         char *princ_name;
 129         char *prompt;
 130
 131         krb5_unparse_name(context, princ_ent, &princ_name);
 132         asprintf (&prompt, "%s's Password: ", princ_name);
 133         free (princ_name);
 134         ret = UI_UTIL_read_pw_string (pwbuf, sizeof(pwbuf), prompt, 1);
 135         free (prompt);
 136         if (ret) {
 137             krb5_set_error_string(context, "failed to verify password");
 138             ret = KRB5_LIBOS_BADPWDMATCH;
 139             goto out;
 140         }
 141         password = pwbuf;
 142     }
 143
 144     ret = kadm5_create_principal(kadm_handle, &princ, mask, password);
 145     if(ret) {
 146         krb5_warn(context, ret, "kadm5_create_principal");
 147         goto out;
 148     }
 149     if(rand_key) {
 150         krb5_keyblock *new_keys;
 151         int n_keys, i;
 152         ret = kadm5_randkey_principal(kadm_handle, princ_ent,
 153                                       &new_keys, &n_keys);
 154         if(ret){
 155             krb5_warn(context, ret, "kadm5_randkey_principal");
 156             n_keys = 0;
 157         }
 158         for(i = 0; i < n_keys; i++)
 159             krb5_free_keyblock_contents(context, &new_keys[i]);
 160         if (n_keys > 0)
 161             free(new_keys);
 162         kadm5_get_principal(kadm_handle, princ_ent, &princ,
 163                             KADM5_PRINCIPAL | KADM5_KVNO | KADM5_ATTRIBUTES);
 164         princ.attributes &= (~KRB5_KDB_DISALLOW_ALL_TIX);
 165         princ.kvno = 1;
 166         kadm5_modify_principal(kadm_handle, &princ,
 167                                KADM5_ATTRIBUTES | KADM5_KVNO);
 168         kadm5_free_principal_ent(kadm_handle, &princ);
 169     } else if (key_data) {
 170         ret = kadm5_chpass_principal_with_key (kadm_handle, princ_ent,
 171                                                3, key_data);
 172         if (ret) {
 173             krb5_warn(context, ret, "kadm5_chpass_principal_with_key");
 174         }
 175         kadm5_get_principal(kadm_handle, princ_ent, &princ,
 176                             KADM5_PRINCIPAL | KADM5_ATTRIBUTES);
 177         princ.attributes &= (~KRB5_KDB_DISALLOW_ALL_TIX);
 178         kadm5_modify_principal(kadm_handle, &princ, KADM5_ATTRIBUTES);
 179         kadm5_free_principal_ent(kadm_handle, &princ);
 180     } else if (rand_password) {
 181         char *princ_name;
 182
 183         krb5_unparse_name(context, princ_ent, &princ_name);
 184         printf ("added %s with password \"%s\"\n", princ_name, password);
 185         free (princ_name);
 186     }
 187 out:
 188     if (princ_ent)
 189         krb5_free_principal (context, princ_ent);
 190     if(default_ent)
 191         kadm5_free_principal_ent (kadm_handle, default_ent);
 192     if (password != NULL)
 193         memset (password, 0, strlen(password));
 194     return ret;
 195 }
 196
 197 /*
 198  * parse the string `key_string' into `key', returning 0 iff succesful.
 199  */
 200
 201 /*
 202  * the ank command
 203  */
 204
 205 /*
 206  * Parse arguments and add all the principals.
 207  */
 208
 209 int
 210 add_new_key(struct add_options *opt, int argc, char **argv)
 211 {
 212     krb5_error_code ret = 0;
 213     int i;
 214     int num;
 215     krb5_key_data key_data[3];
 216     krb5_key_data *kdp = NULL;
 217
 218     num = 0;
 219     if (opt->random_key_flag)
 220         ++num;
 221     if (opt->random_password_flag)
 222         ++num;
 223     if (opt->password_string)
 224         ++num;
 225     if (opt->key_string)
 226         ++num;
 227
 228     if (num > 1) {
 229         fprintf (stderr, "give only one of "
 230                 "--random-key, --random-password, --password, --key\n");
 231         return 1;
 232     }
 233
 234     if (opt->key_string) {
 235         const char *error;
 236
 237         if (parse_des_key (opt->key_string, key_data, &error)) {
 238             fprintf (stderr, "failed parsing key \"%s\": %s\n",
 239                      opt->key_string, error);
 240             return 1;
 241         }
 242         kdp = key_data;
 243     }
 244
 245     for(i = 0; i < argc; i++) {
 246         ret = add_one_principal (argv[i],
 247                                  opt->random_key_flag,
 248                                  opt->random_password_flag,
 249                                  opt->use_defaults_flag,
 250                                  opt->password_string,
 251                                  kdp,
 252                                  opt->max_ticket_life_string,
 253                                  opt->max_renewable_life_string,
 254                                  opt->attributes_string,
 255                                  opt->expiration_time_string,
 256                                  opt->pw_expiration_time_string);
 257         if (ret) {
 258             krb5_warn (context, ret, "adding %s", argv[i]);
 259             break;
 260         }
 261     }
 262     if (kdp) {
 263         int16_t dummy = 3;
 264         kadm5_free_key_data (kadm_handle, &dummy, key_data);
 265     }
 266     return ret != 0;
 267 }