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