Line data    Source code

       1             : /* 
       2             :  *  Unix SMB/CIFS implementation.
       3             :  *  Authentication utility functions
       4             :  *  Copyright (C) Andrew Tridgell 1992-1998
       5             :  *  Copyright (C) Andrew Bartlett 2001
       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             :  Duplicate a SID token.
      33             : ****************************************************************************/
      34             : 
      35      290745 : struct security_token *dup_nt_token(TALLOC_CTX *mem_ctx, const struct security_token *ptoken)
      36             : {
      37             :         struct security_token *token;
      38             : 
      39      290745 :         if (!ptoken)
      40       51984 :                 return NULL;
      41             : 
      42      238761 :         token = talloc_zero(mem_ctx, struct security_token);
      43      238761 :         if (token == NULL) {
      44           0 :                 DEBUG(0, ("talloc failed\n"));
      45           0 :                 return NULL;
      46             :         }
      47             : 
      48      238761 :         if (ptoken->sids && ptoken->num_sids) {
      49      238761 :                 token->sids = (struct dom_sid *)talloc_memdup(
      50             :                         token, ptoken->sids, sizeof(struct dom_sid) * ptoken->num_sids );
      51             : 
      52      238761 :                 if (token->sids == NULL) {
      53           0 :                         DEBUG(0, ("talloc_memdup failed\n"));
      54           0 :                         TALLOC_FREE(token);
      55           0 :                         return NULL;
      56             :                 }
      57      238761 :                 token->num_sids = ptoken->num_sids;
      58             :         }
      59             :         
      60      238761 :         token->privilege_mask = ptoken->privilege_mask;
      61      238761 :         token->rights_mask = ptoken->rights_mask;
      62             : 
      63      238761 :         return token;
      64             : }
      65             : 
      66             : /****************************************************************************
      67             :  merge NT tokens
      68             : ****************************************************************************/
      69             : 
      70           0 : NTSTATUS merge_nt_token(TALLOC_CTX *mem_ctx,
      71             :                         const struct security_token *token_1,
      72             :                         const struct security_token *token_2,
      73             :                         struct security_token **token_out)
      74             : {
      75           0 :         struct security_token *token = NULL;
      76             :         NTSTATUS status;
      77             :         uint32_t i;
      78             : 
      79           0 :         if (!token_1 || !token_2 || !token_out) {
      80           0 :                 return NT_STATUS_INVALID_PARAMETER;
      81             :         }
      82             : 
      83           0 :         token = talloc_zero(mem_ctx, struct security_token);
      84           0 :         NT_STATUS_HAVE_NO_MEMORY(token);
      85             : 
      86           0 :         for (i=0; i < token_1->num_sids; i++) {
      87           0 :                 status = add_sid_to_array_unique(mem_ctx,
      88           0 :                                                  &token_1->sids[i],
      89             :                                                  &token->sids,
      90             :                                                  &token->num_sids);
      91           0 :                 if (!NT_STATUS_IS_OK(status)) {
      92           0 :                         TALLOC_FREE(token);
      93           0 :                         return status;
      94             :                 }
      95             :         }
      96             : 
      97           0 :         for (i=0; i < token_2->num_sids; i++) {
      98           0 :                 status = add_sid_to_array_unique(mem_ctx,
      99           0 :                                                  &token_2->sids[i],
     100             :                                                  &token->sids,
     101             :                                                  &token->num_sids);
     102           0 :                 if (!NT_STATUS_IS_OK(status)) {
     103           0 :                         TALLOC_FREE(token);
     104           0 :                         return status;
     105             :                 }
     106             :         }
     107             : 
     108           0 :         token->privilege_mask |= token_1->privilege_mask;
     109           0 :         token->privilege_mask |= token_2->privilege_mask;
     110             : 
     111           0 :         token->rights_mask |= token_1->rights_mask;
     112           0 :         token->rights_mask |= token_2->rights_mask;
     113             : 
     114           0 :         *token_out = token;
     115             : 
     116           0 :         return NT_STATUS_OK;
     117             : }
     118             : 
     119             : /*******************************************************************
     120             :  Check if this struct security_ace has a SID in common with the token.
     121             : ********************************************************************/
     122             : 
     123           0 : bool token_sid_in_ace(const struct security_token *token, const struct security_ace *ace)
     124             : {
     125             :         size_t i;
     126             : 
     127           0 :         for (i = 0; i < token->num_sids; i++) {
     128           0 :                 if (dom_sid_equal(&ace->trustee, &token->sids[i]))
     129           0 :                         return true;
     130             :         }
     131             : 
     132           0 :         return false;
     133             : }