kadmin/del_enctype.c

   1 /*
   2  * Copyright (c) 1999-2006 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  * del_enctype principal enctypes...
  41  */
  42
  43 int
  44 del_enctype(void *opt, int argc, char **argv)
  45 {
  46     kadm5_principal_ent_rec princ;
  47     krb5_principal princ_ent = NULL;
  48     krb5_error_code ret;
  49     const char *princ_name;
  50     int i, j, k;
  51     krb5_key_data *new_key_data;
  52     int n_etypes;
  53     krb5_enctype *etypes;
  54
  55     memset (&princ, 0, sizeof(princ));
  56     princ_name = argv[0];
  57     n_etypes   = argc - 1;
  58     etypes     = malloc (n_etypes * sizeof(*etypes));
  59     if (etypes == NULL) {
  60         krb5_warnx (context, "out of memory");
  61         return 0;
  62     }
  63     argv++;
  64     for (i = 0; i < n_etypes; ++i) {
  65         ret = krb5_string_to_enctype (context, argv[i], &etypes[i]);
  66         if (ret) {
  67             krb5_warnx (context, "bad enctype \"%s\"", argv[i]);
  68             goto out2;
  69         }
  70     }
  71
  72     ret = krb5_parse_name(context, princ_name, &princ_ent);
  73     if (ret) {
  74         krb5_warn (context, ret, "krb5_parse_name %s", princ_name);
  75         goto out2;
  76     }
  77
  78     ret = kadm5_get_principal(kadm_handle, princ_ent, &princ,
  79                               KADM5_PRINCIPAL | KADM5_KEY_DATA);
  80     if (ret) {
  81         krb5_free_principal (context, princ_ent);
  82         krb5_warnx (context, "no such principal: %s", princ_name);
  83         goto out2;
  84     }
  85
  86     new_key_data   = malloc(princ.n_key_data * sizeof(*new_key_data));
  87     if (new_key_data == NULL && princ.n_key_data != 0) {
  88         krb5_warnx (context, "out of memory");
  89         goto out;
  90     }
  91
  92     for (i = 0, j = 0; i < princ.n_key_data; ++i) {
  93         krb5_key_data *key = &princ.key_data[i];
  94         int docopy = 1;
  95
  96         for (k = 0; k < n_etypes; ++k)
  97             if (etypes[k] == key->key_data_type[0]) {
  98                 docopy = 0;
  99                 break;
 100             }
 101         if (docopy) {
 102             new_key_data[j++] = *key;
 103         } else {
 104             int16_t ignore = 1;
 105
 106             kadm5_free_key_data (kadm_handle, &ignore, key);
 107         }
 108     }
 109
 110     free (princ.key_data);
 111     princ.n_key_data = j;
 112     princ.key_data   = new_key_data;
 113
 114     ret = kadm5_modify_principal (kadm_handle, &princ, KADM5_KEY_DATA);
 115     if (ret)
 116         krb5_warn(context, ret, "kadm5_modify_principal");
 117 out:
 118     krb5_free_principal (context, princ_ent);
 119     kadm5_free_principal_ent(kadm_handle, &princ);
 120 out2:
 121     free (etypes);
 122     return ret != 0;
 123 }