source3/lib/util_nttoken.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  Authentication utility functions
   4  *  Copyright (C) Andrew Tridgell 1992-1998
   5  *  Copyright (C) Andrew Bartlett 2001-2023
   6  *  Copyright (C) Jeremy Allison 2000-2001
   7  *  Copyright (C) Rafal Szczesniak 2002
   8  *  Copyright (C) Volker Lendecke 2006
   9  *  Copyright (C) Michael Adam 2007
  10  *  Copyright (C) Guenther Deschner 2007
  11  *
  12  *  This program is free software; you can redistribute it and/or modify
  13  *  it under the terms of the GNU General Public License as published by
  14  *  the Free Software Foundation; either version 3 of the License, or
  15  *  (at your option) any later version.
  16  *
  17  *  This program is distributed in the hope that it will be useful,
  18  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  *  GNU General Public License for more details.
  21  *
  22  *  You should have received a copy of the GNU General Public License
  23  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  24  */
  25
  26 /* function(s) moved from auth/auth_util.c to minimize linker deps */
  27
  28 #include "includes.h"
  29 #include "../libcli/security/security.h"
  30
  31 /****************************************************************************
  32  merge NT tokens
  33 ****************************************************************************/
  34
  35 NTSTATUS merge_with_system_token(TALLOC_CTX *mem_ctx,
  36                                  const struct security_token *token_1,
  37                                  struct security_token **token_out)
  38 {
  39         const struct security_token *token_2 = get_system_token();
  40         struct security_token *token = NULL;
  41         NTSTATUS status;
  42         uint32_t i;
  43
  44         if (!token_1 || !token_2 || !token_out) {
  45                 return NT_STATUS_INVALID_PARAMETER;
  46         }
  47
  48         token = talloc_zero(mem_ctx, struct security_token);
  49         NT_STATUS_HAVE_NO_MEMORY(token);
  50
  51         for (i=0; i < token_1->num_sids; i++) {
  52                 status = add_sid_to_array_unique(mem_ctx,
  53                                                  &token_1->sids[i],
  54                                                  &token->sids,
  55                                                  &token->num_sids);
  56                 if (!NT_STATUS_IS_OK(status)) {
  57                         TALLOC_FREE(token);
  58                         return status;
  59                 }
  60         }
  61
  62         for (i=0; i < token_2->num_sids; i++) {
  63                 status = add_sid_to_array_unique(mem_ctx,
  64                                                  &token_2->sids[i],
  65                                                  &token->sids,
  66                                                  &token->num_sids);
  67                 if (!NT_STATUS_IS_OK(status)) {
  68                         TALLOC_FREE(token);
  69                         return status;
  70                 }
  71         }
  72
  73         token->privilege_mask |= token_1->privilege_mask;
  74         token->privilege_mask |= token_2->privilege_mask;
  75
  76         token->rights_mask |= token_1->rights_mask;
  77         token->rights_mask |= token_2->rights_mask;
  78
  79         /*
  80          * We don't need to merge claims as the system token has no
  81          * claims
  82          */
  83
  84         *token_out = token;
  85
  86         return NT_STATUS_OK;
  87 }
  88
  89 /*******************************************************************
  90  Check if this struct security_ace has a SID in common with the token.
  91 ********************************************************************/
  92
  93 bool token_sid_in_ace(const struct security_token *token, const struct security_ace *ace)
  94 {
  95         size_t i;
  96
  97         for (i = 0; i < token->num_sids; i++) {
  98                 if (dom_sid_equal(&ace->trustee, &token->sids[i]))
  99                         return true;
 100         }
 101
 102         return false;
 103 }