source4/kdc/mit-kdb/kdb_samba_common.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Samba KDB plugin for MIT Kerberos
   5
   6    Copyright (c) 2010      Simo Sorce <idra@samba.org>.
   7    Copyright (c) 2014      Andreas Schneider <asn@samba.org>
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 #include "includes.h"
  24
  25 #include "system/kerberos.h"
  26
  27 #include <profile.h>
  28 #include <kdb.h>
  29
  30 #include "kdc/mit_samba.h"
  31 #include "kdb_samba.h"
  32
  33 struct mit_samba_context *ks_get_context(krb5_context kcontext)
  34 {
  35         void *db_ctx;
  36         krb5_error_code code;
  37
  38         code = krb5_db_get_context(kcontext, &db_ctx);
  39         if (code != 0) {
  40                 return NULL;
  41         }
  42
  43         return (struct mit_samba_context *)db_ctx;
  44 }
  45
  46 bool ks_data_eq_string(krb5_data d, const char *s)
  47 {
  48         int rc;
  49
  50         if (d.length != strlen(s) || d.length == 0) {
  51                 return false;
  52         }
  53
  54         rc = memcmp(d.data, s, d.length);
  55         if (rc != 0) {
  56                 return false;
  57         }
  58
  59         return true;
  60 }
  61
  62 krb5_data ks_make_data(void *data, unsigned int len)
  63 {
  64         krb5_data d;
  65
  66         d.magic = KV5M_DATA;
  67         d.data = data;
  68         d.length = len;
  69
  70         return d;
  71 }
  72
  73 krb5_boolean ks_is_kadmin(krb5_context context,
  74                           krb5_const_principal princ)
  75 {
  76         return krb5_princ_size(context, princ) >= 1 &&
  77                ks_data_eq_string(princ->data[0], "kadmin");
  78 }
  79
  80 krb5_boolean ks_is_kadmin_history(krb5_context context,
  81                                   krb5_const_principal princ)
  82 {
  83         return krb5_princ_size(context, princ) == 2 &&
  84                ks_data_eq_string(princ->data[0], "kadmin") &&
  85                ks_data_eq_string(princ->data[1], "history");
  86 }
  87
  88 krb5_boolean ks_is_kadmin_changepw(krb5_context context,
  89                                    krb5_const_principal princ)
  90 {
  91         return krb5_princ_size(context, princ) == 2 &&
  92                ks_data_eq_string(princ->data[0], "kadmin") &&
  93                ks_data_eq_string(princ->data[1], "changepw");
  94 }
  95
  96 krb5_boolean ks_is_kadmin_admin(krb5_context context,
  97                                 krb5_const_principal princ)
  98 {
  99         return krb5_princ_size(context, princ) == 2 &&
 100                ks_data_eq_string(princ->data[0], "kadmin") &&
 101                ks_data_eq_string(princ->data[1], "admin");
 102 }