source/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, TALLOC_CTX *mem_ctx)
  32 {
  33         char param[8];
  34         char *rparam=NULL, *rdata=NULL;
  35         int rparam_count=0, rdata_count=0;
  36         prs_struct pd;
  37         SEC_DESC *psd = NULL;
  38
  39         SIVAL(param, 0, fd);
  40         SSVAL(param, 4, 0x7);
  41
  42         if (!cli_send_nt_trans(cli,
  43                                NT_TRANSACT_QUERY_SECURITY_DESC,
  44                                0,
  45                                NULL, 0, 0,
  46                                param, 8, 4,
  47                                NULL, 0, 0x10000)) {
  48                 DEBUG(1,("Failed to send NT_TRANSACT_QUERY_SECURITY_DESC\n"));
  49                 goto cleanup;
  50         }
  51
  52
  53         if (!cli_receive_nt_trans(cli,
  54                                   &rparam, &rparam_count,
  55                                   &rdata, &rdata_count)) {
  56                 DEBUG(1,("Failed to recv NT_TRANSACT_QUERY_SECURITY_DESC\n"));
  57                 goto cleanup;
  58         }
  59
  60         prs_init(&pd, rdata_count, mem_ctx, UNMARSHALL);
  61         prs_append_data(&pd, rdata, rdata_count);
  62         pd.data_offset = 0;
  63
  64         if (!sec_io_desc("sd data", &psd, &pd, 1)) {
  65                 DEBUG(1,("Failed to parse secdesc\n"));
  66                 goto cleanup;
  67         }
  68
  69  cleanup:
  70
  71         safe_free(rparam);
  72         safe_free(rdata);
  73
  74         prs_mem_free(&pd);
  75         return psd;
  76 }
  77
  78 /****************************************************************************
  79   set the security descriptor for a open file
  80   ****************************************************************************/
  81 BOOL cli_set_secdesc(struct cli_state *cli,int fd, SEC_DESC *sd)
  82 {
  83         char param[8];
  84         char *rparam=NULL, *rdata=NULL;
  85         int rparam_count=0, rdata_count=0;
  86         TALLOC_CTX *mem_ctx;
  87         prs_struct pd;
  88         BOOL ret = False;
  89
  90         if ((mem_ctx = talloc_init()) == NULL) {
  91                 DEBUG(0,("talloc_init failed.\n"));
  92                 goto cleanup;
  93         }
  94
  95         prs_init(&pd, 0, mem_ctx, MARSHALL);
  96         prs_give_memory(&pd, NULL, 0, True);
  97
  98         if (!sec_io_desc("sd data", &sd, &pd, 1)) {
  99                 DEBUG(1,("Failed to marshall secdesc\n"));
 100                 goto cleanup;
 101         }
 102
 103         SIVAL(param, 0, fd);
 104         SSVAL(param, 4, 0x7);
 105
 106         if (!cli_send_nt_trans(cli,
 107                                NT_TRANSACT_SET_SECURITY_DESC,
 108                                0,
 109                                NULL, 0, 0,
 110                                param, 8, 0,
 111                                pd.data_p, pd.data_offset, 0)) {
 112                 DEBUG(1,("Failed to send NT_TRANSACT_SET_SECURITY_DESC\n"));
 113                 goto cleanup;
 114         }
 115
 116
 117         if (!cli_receive_nt_trans(cli,
 118                                   &rparam, &rparam_count,
 119                                   &rdata, &rdata_count)) {
 120                 DEBUG(1,("NT_TRANSACT_SET_SECURITY_DESC failed\n"));
 121                 goto cleanup;
 122         }
 123
 124         ret = True;
 125
 126   cleanup:
 127
 128         safe_free(rparam);
 129         safe_free(rdata);
 130
 131         talloc_destroy(mem_ctx);
 132
 133         prs_mem_free(&pd);
 134         return ret;
 135 }