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 "replace.h"
  23 #include "libcli/security/security.h"
  24 #include "libcli/util/werror.h"
  25 #include "librpc/gen_ndr/auth.h"
  26
  27 enum security_user_level security_session_user_level(struct auth_session_info *session_info,
  28                                                      const struct dom_sid *domain_sid)
  29 {
  30         struct security_token *token = NULL;
  31         bool authenticated = false;
  32         bool guest = false;
  33
  34         if (!session_info) {
  35                 return SECURITY_ANONYMOUS;
  36         }
  37         token = session_info->security_token;
  38
  39         if (security_token_is_system(token)) {
  40                 return SECURITY_SYSTEM;
  41         }
  42
  43         if (security_token_is_anonymous(token)) {
  44                 return SECURITY_ANONYMOUS;
  45         }
  46
  47         authenticated = security_token_has_nt_authenticated_users(token);
  48         guest = security_token_has_builtin_guests(token);
  49         if (!authenticated) {
  50                 if (guest) {
  51                         return SECURITY_GUEST;
  52                 }
  53                 return SECURITY_ANONYMOUS;
  54         }
  55
  56         if (security_token_has_builtin_administrators(token)) {
  57                 return SECURITY_ADMINISTRATOR;
  58         }
  59
  60         if (domain_sid) {
  61                 struct dom_sid rodc_dcs = { .num_auths = 0 };
  62                 sid_compose(&rodc_dcs, domain_sid, DOMAIN_RID_READONLY_DCS);
  63
  64                 if (security_token_has_sid(token, &rodc_dcs)) {
  65                         return SECURITY_RO_DOMAIN_CONTROLLER;
  66                 }
  67         }
  68
  69         if (security_token_has_enterprise_dcs(token)) {
  70                 return SECURITY_DOMAIN_CONTROLLER;
  71         }
  72
  73         return SECURITY_USER;
  74 }