libcli/security/session.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    session_info utility functions
   5
   6    Copyright (C) Andrew Bartlett 2008-2010
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "includes.h"
  23 #include "libcli/security/security.h"
  24 #include "librpc/gen_ndr/auth.h"
  25
  26 enum security_user_level security_session_user_level(struct auth_session_info *session_info,
  27                                                      const struct dom_sid *domain_sid)
  28 {
  29         struct security_token *token = NULL;
  30         bool authenticated = false;
  31         bool guest = false;
  32
  33         if (!session_info) {
  34                 return SECURITY_ANONYMOUS;
  35         }
  36         token = session_info->security_token;
  37
  38         if (security_token_is_system(token)) {
  39                 return SECURITY_SYSTEM;
  40         }
  41
  42         if (security_token_is_anonymous(token)) {
  43                 return SECURITY_ANONYMOUS;
  44         }
  45
  46         authenticated = security_token_has_nt_authenticated_users(token);
  47         guest = security_token_has_builtin_guests(token);
  48         if (!authenticated) {
  49                 if (guest) {
  50                         return SECURITY_GUEST;
  51                 }
  52                 return SECURITY_ANONYMOUS;
  53         }
  54
  55         if (security_token_has_builtin_administrators(token)) {
  56                 return SECURITY_ADMINISTRATOR;
  57         }
  58
  59         if (domain_sid) {
  60                 struct dom_sid rodc_dcs = { .num_auths = 0 };
  61                 sid_compose(&rodc_dcs, domain_sid, DOMAIN_RID_READONLY_DCS);
  62
  63                 if (security_token_has_sid(token, &rodc_dcs)) {
  64                         return SECURITY_RO_DOMAIN_CONTROLLER;
  65                 }
  66         }
  67
  68         if (security_token_has_enterprise_dcs(token)) {
  69                 return SECURITY_DOMAIN_CONTROLLER;
  70         }
  71
  72         return SECURITY_USER;
  73 }