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 /*
  38  * del_enctype principal enctypes...
  39  */
  40
  41 int
  42 del_enctype(void *opt, int argc, char **argv)
  43 {
  44     kadm5_principal_ent_rec princ;
  45     krb5_principal princ_ent = NULL;
  46     krb5_error_code ret;
  47     const char *princ_name;
  48     int i, j, k;
  49     krb5_key_data *new_key_data;
  50     int n_etypes;
  51     krb5_enctype *etypes;
  52
  53     memset (&princ, 0, sizeof(princ));
  54     princ_name = argv[0];
  55     n_etypes   = argc - 1;
  56     etypes     = malloc (n_etypes * sizeof(*etypes));
  57     if (etypes == NULL) {
  58         krb5_warnx (context, "out of memory");
  59         return 0;
  60     }
  61     argv++;
  62     for (i = 0; i < n_etypes; ++i) {
  63         ret = krb5_string_to_enctype (context, argv[i], &etypes[i]);
  64         if (ret) {
  65             krb5_warnx (context, "bad enctype \"%s\"", argv[i]);
  66             goto out2;
  67         }
  68     }
  69
  70     ret = krb5_parse_name(context, princ_name, &princ_ent);
  71     if (ret) {
  72         krb5_warn (context, ret, "krb5_parse_name %s", princ_name);
  73         goto out2;
  74     }
  75
  76     ret = kadm5_get_principal(kadm_handle, princ_ent, &princ,
  77                               KADM5_PRINCIPAL | KADM5_KEY_DATA);
  78     if (ret) {
  79         krb5_free_principal (context, princ_ent);
  80         krb5_warnx (context, "no such principal: %s", princ_name);
  81         goto out2;
  82     }
  83
  84     new_key_data   = malloc(princ.n_key_data * sizeof(*new_key_data));
  85     if (new_key_data == NULL && princ.n_key_data != 0) {
  86         krb5_warnx (context, "out of memory");
  87         goto out;
  88     }
  89
  90     for (i = 0, j = 0; i < princ.n_key_data; ++i) {
  91         krb5_key_data *key = &princ.key_data[i];
  92         int docopy = 1;
  93
  94         for (k = 0; k < n_etypes; ++k)
  95             if (etypes[k] == key->key_data_type[0]) {
  96                 docopy = 0;
  97                 break;
  98             }
  99         if (docopy) {
 100             new_key_data[j++] = *key;
 101         } else {
 102             int16_t ignore = 1;
 103
 104             kadm5_free_key_data (kadm_handle, &ignore, key);
 105         }
 106     }
 107
 108     free (princ.key_data);
 109     if (j == 0) {
 110         free(new_key_data);
 111         new_key_data = NULL;
 112     }
 113     princ.n_key_data = j;
 114     princ.key_data   = new_key_data;
 115
 116     ret = kadm5_modify_principal (kadm_handle, &princ, KADM5_KEY_DATA);
 117     if (ret)
 118         krb5_warn(context, ret, "kadm5_modify_principal");
 119 out:
 120     krb5_free_principal (context, princ_ent);
 121     kadm5_free_principal_ent(kadm_handle, &princ);
 122 out2:
 123     free (etypes);
 124     return ret != 0;
 125 }