source3/libsmb/clisecdesc.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    Version 3.0
   4    client security descriptor functions
   5    Copyright (C) Andrew Tridgell 2000
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22 #define NO_SYSLOG
  23
  24 #include "includes.h"
  25
  26
  27
  28 /****************************************************************************
  29   query the security descriptor for a open file
  30   ****************************************************************************/
  31 SEC_DESC *cli_query_secdesc(struct cli_state *cli,int fd)
  32 {
  33         char param[8];
  34         char *rparam=NULL, *rdata=NULL;
  35         int rparam_count=0, rdata_count=0;
  36         TALLOC_CTX *mem_ctx;
  37         prs_struct pd;
  38         SEC_DESC *psd = NULL;
  39         SEC_DESC *ret;
  40
  41         SIVAL(param, 0, fd);
  42         SSVAL(param, 4, 7);
  43
  44         if (!cli_send_nt_trans(cli,
  45                                NT_TRANSACT_QUERY_SECURITY_DESC,
  46                                0,
  47                                NULL, 0, 0,
  48                                param, 8, 4,
  49                                NULL, 0, 0x10000)) {
  50                 DEBUG(1,("Failed to send NT_TRANSACT_QUERY_SECURITY_DESC\n"));
  51                 return NULL;
  52         }
  53
  54
  55         if (!cli_receive_nt_trans(cli,
  56                                   &rparam, &rparam_count,
  57                                   &rdata, &rdata_count)) {
  58                 DEBUG(1,("Failed to recv NT_TRANSACT_QUERY_SECURITY_DESC\n"));
  59                 return NULL;
  60         }
  61
  62         if ((mem_ctx = talloc_init()) == NULL) {
  63                 DEBUG(0,("talloc_init failed.\n"));
  64                 return NULL;
  65         }
  66
  67         prs_init(&pd, rdata_count, 4, mem_ctx, UNMARSHALL);
  68         prs_append_data(&pd, rdata, rdata_count);
  69         pd.data_offset = 0;
  70
  71         if (!sec_io_desc("sd data", &psd, &pd, 1)) {
  72                 DEBUG(1,("Failed to parse secdesc\n"));
  73                 return NULL;
  74         }
  75
  76         ret = dup_sec_desc(psd);
  77         talloc_destroy(mem_ctx);
  78         return ret;
  79 }
  80
  81
  82