source/libsmb/clisecdesc.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    client security descriptor functions
   4    Copyright (C) Andrew Tridgell 2000
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21 #include "includes.h"
  22
  23 /****************************************************************************
  24   query the security descriptor for a open file
  25  ****************************************************************************/
  26 SEC_DESC *cli_query_secdesc(struct cli_state *cli, int fnum,
  27                             TALLOC_CTX *mem_ctx)
  28 {
  29         char param[8];
  30         char *rparam=NULL, *rdata=NULL;
  31         int rparam_count=0, rdata_count=0;
  32         prs_struct pd;
  33         SEC_DESC *psd = NULL;
  34
  35         SIVAL(param, 0, fnum);
  36         SSVAL(param, 4, 0x7);
  37
  38         if (!cli_send_nt_trans(cli,
  39                                NT_TRANSACT_QUERY_SECURITY_DESC,
  40                                0,
  41                                NULL, 0, 0,
  42                                param, 8, 4,
  43                                NULL, 0, 0x10000)) {
  44                 DEBUG(1,("Failed to send NT_TRANSACT_QUERY_SECURITY_DESC\n"));
  45                 goto cleanup;
  46         }
  47
  48
  49         if (!cli_receive_nt_trans(cli,
  50                                   &rparam, &rparam_count,
  51                                   &rdata, &rdata_count)) {
  52                 DEBUG(1,("Failed to recv NT_TRANSACT_QUERY_SECURITY_DESC\n"));
  53                 goto cleanup;
  54         }
  55
  56         prs_init(&pd, rdata_count, mem_ctx, UNMARSHALL);
  57         prs_copy_data_in(&pd, rdata, rdata_count);
  58         prs_set_offset(&pd,0);
  59
  60         if (!sec_io_desc("sd data", &psd, &pd, 1)) {
  61                 DEBUG(1,("Failed to parse secdesc\n"));
  62                 goto cleanup;
  63         }
  64
  65  cleanup:
  66
  67         SAFE_FREE(rparam);
  68         SAFE_FREE(rdata);
  69
  70         prs_mem_free(&pd);
  71         return psd;
  72 }
  73
  74 /****************************************************************************
  75   set the security descriptor for a open file
  76  ****************************************************************************/
  77 BOOL cli_set_secdesc(struct cli_state *cli, int fnum, SEC_DESC *sd)
  78 {
  79         char param[8];
  80         char *rparam=NULL, *rdata=NULL;
  81         int rparam_count=0, rdata_count=0;
  82         TALLOC_CTX *mem_ctx;
  83         prs_struct pd;
  84         BOOL ret = False;
  85
  86         if ((mem_ctx = talloc_init("cli_set_secdesc")) == NULL) {
  87                 DEBUG(0,("talloc_init failed.\n"));
  88                 goto cleanup;
  89         }
  90
  91         prs_init(&pd, 0, mem_ctx, MARSHALL);
  92         prs_give_memory(&pd, NULL, 0, True);
  93
  94         if (!sec_io_desc("sd data", &sd, &pd, 1)) {
  95                 DEBUG(1,("Failed to marshall secdesc\n"));
  96                 goto cleanup;
  97         }
  98
  99         SIVAL(param, 0, fnum);
 100         SSVAL(param, 4, 0x7);
 101
 102         if (!cli_send_nt_trans(cli,
 103                                NT_TRANSACT_SET_SECURITY_DESC,
 104                                0,
 105                                NULL, 0, 0,
 106                                param, 8, 0,
 107                                prs_data_p(&pd), prs_offset(&pd), 0)) {
 108                 DEBUG(1,("Failed to send NT_TRANSACT_SET_SECURITY_DESC\n"));
 109                 goto cleanup;
 110         }
 111
 112
 113         if (!cli_receive_nt_trans(cli,
 114                                   &rparam, &rparam_count,
 115                                   &rdata, &rdata_count)) {
 116                 DEBUG(1,("NT_TRANSACT_SET_SECURITY_DESC failed\n"));
 117                 goto cleanup;
 118         }
 119
 120         ret = True;
 121
 122   cleanup:
 123
 124         SAFE_FREE(rparam);
 125         SAFE_FREE(rdata);
 126
 127         talloc_destroy(mem_ctx);
 128
 129         prs_mem_free(&pd);
 130         return ret;
 131 }