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 #include "includes.h"
  23
  24 /****************************************************************************
  25   query the security descriptor for a open file
  26  ****************************************************************************/
  27 SEC_DESC *cli_query_secdesc(struct cli_state *cli, int fnum,
  28                             TALLOC_CTX *mem_ctx)
  29 {
  30         char param[8];
  31         char *rparam=NULL, *rdata=NULL;
  32         int rparam_count=0, rdata_count=0;
  33         prs_struct pd;
  34         SEC_DESC *psd = NULL;
  35
  36         SIVAL(param, 0, fnum);
  37         SSVAL(param, 4, 0x7);
  38
  39         if (!cli_send_nt_trans(cli,
  40                                NT_TRANSACT_QUERY_SECURITY_DESC,
  41                                0,
  42                                NULL, 0, 0,
  43                                param, 8, 4,
  44                                NULL, 0, 0x10000)) {
  45                 DEBUG(1,("Failed to send NT_TRANSACT_QUERY_SECURITY_DESC\n"));
  46                 goto cleanup;
  47         }
  48
  49
  50         if (!cli_receive_nt_trans(cli,
  51                                   &rparam, &rparam_count,
  52                                   &rdata, &rdata_count)) {
  53                 DEBUG(1,("Failed to recv NT_TRANSACT_QUERY_SECURITY_DESC\n"));
  54                 goto cleanup;
  55         }
  56
  57         prs_init(&pd, rdata_count, mem_ctx, UNMARSHALL);
  58         prs_append_data(&pd, rdata, rdata_count);
  59         pd.data_offset = 0;
  60
  61         if (!sec_io_desc("sd data", &psd, &pd, 1)) {
  62                 DEBUG(1,("Failed to parse secdesc\n"));
  63                 goto cleanup;
  64         }
  65
  66  cleanup:
  67
  68         safe_free(rparam);
  69         safe_free(rdata);
  70
  71         prs_mem_free(&pd);
  72         return psd;
  73 }
  74
  75 /****************************************************************************
  76   set the security descriptor for a open file
  77  ****************************************************************************/
  78 BOOL cli_set_secdesc(struct cli_state *cli, int fnum, SEC_DESC *sd)
  79 {
  80         char param[8];
  81         char *rparam=NULL, *rdata=NULL;
  82         int rparam_count=0, rdata_count=0;
  83         TALLOC_CTX *mem_ctx;
  84         prs_struct pd;
  85         BOOL ret = False;
  86
  87         if ((mem_ctx = talloc_init()) == NULL) {
  88                 DEBUG(0,("talloc_init failed.\n"));
  89                 goto cleanup;
  90         }
  91
  92         prs_init(&pd, 0, mem_ctx, MARSHALL);
  93         prs_give_memory(&pd, NULL, 0, True);
  94
  95         if (!sec_io_desc("sd data", &sd, &pd, 1)) {
  96                 DEBUG(1,("Failed to marshall secdesc\n"));
  97                 goto cleanup;
  98         }
  99
 100         SIVAL(param, 0, fnum);
 101         SSVAL(param, 4, 0x7);
 102
 103         if (!cli_send_nt_trans(cli,
 104                                NT_TRANSACT_SET_SECURITY_DESC,
 105                                0,
 106                                NULL, 0, 0,
 107                                param, 8, 0,
 108                                pd.data_p, pd.data_offset, 0)) {
 109                 DEBUG(1,("Failed to send NT_TRANSACT_SET_SECURITY_DESC\n"));
 110                 goto cleanup;
 111         }
 112
 113
 114         if (!cli_receive_nt_trans(cli,
 115                                   &rparam, &rparam_count,
 116                                   &rdata, &rdata_count)) {
 117                 DEBUG(1,("NT_TRANSACT_SET_SECURITY_DESC failed\n"));
 118                 goto cleanup;
 119         }
 120
 121         ret = True;
 122
 123   cleanup:
 124
 125         safe_free(rparam);
 126         safe_free(rdata);
 127
 128         talloc_destroy(mem_ctx);
 129
 130         prs_mem_free(&pd);
 131         return ret;
 132 }