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=NULL;
  37         prs_struct pd;
  38         SEC_DESC *psd = NULL;
  39
  40         SIVAL(param, 0, fd);
  41         SSVAL(param, 4, 0x7);
  42
  43         if (!cli_send_nt_trans(cli,
  44                                NT_TRANSACT_QUERY_SECURITY_DESC,
  45                                0,
  46                                NULL, 0, 0,
  47                                param, 8, 4,
  48                                NULL, 0, 0x10000)) {
  49                 DEBUG(1,("Failed to send NT_TRANSACT_QUERY_SECURITY_DESC\n"));
  50                 goto cleanup;
  51         }
  52
  53
  54         if (!cli_receive_nt_trans(cli,
  55                                   &rparam, &rparam_count,
  56                                   &rdata, &rdata_count)) {
  57                 DEBUG(1,("Failed to recv NT_TRANSACT_QUERY_SECURITY_DESC\n"));
  58                 goto cleanup;
  59         }
  60
  61         if ((mem_ctx = talloc_init()) == NULL) {
  62                 DEBUG(0,("talloc_init failed.\n"));
  63                 goto cleanup;
  64         }
  65
  66         prs_init(&pd, rdata_count, mem_ctx, UNMARSHALL);
  67         prs_append_data(&pd, rdata, rdata_count);
  68         pd.data_offset = 0;
  69
  70         if (!sec_io_desc("sd data", &psd, &pd, 1)) {
  71                 DEBUG(1,("Failed to parse secdesc\n"));
  72                 goto cleanup;
  73         }
  74
  75  cleanup:
  76
  77         talloc_destroy(mem_ctx);
  78         safe_free(rparam);
  79         safe_free(rdata);
  80
  81         prs_mem_free(&pd);
  82         return psd;
  83 }
  84
  85
  86
  87
  88 /****************************************************************************
  89   set the security descriptor for a open file
  90   ****************************************************************************/
  91 BOOL cli_set_secdesc(struct cli_state *cli,int fd, SEC_DESC *sd)
  92 {
  93         char param[8];
  94         char *rparam=NULL, *rdata=NULL;
  95         int rparam_count=0, rdata_count=0;
  96         TALLOC_CTX *mem_ctx;
  97         prs_struct pd;
  98         BOOL ret = False;
  99
 100         if ((mem_ctx = talloc_init()) == NULL) {
 101                 DEBUG(0,("talloc_init failed.\n"));
 102                 goto cleanup;
 103         }
 104
 105         prs_init(&pd, 0, mem_ctx, MARSHALL);
 106         prs_give_memory(&pd, NULL, 0, True);
 107
 108         if (!sec_io_desc("sd data", &sd, &pd, 1)) {
 109                 DEBUG(1,("Failed to marshall secdesc\n"));
 110                 goto cleanup;
 111         }
 112
 113         SIVAL(param, 0, fd);
 114         SSVAL(param, 4, 0x7);
 115
 116         if (!cli_send_nt_trans(cli,
 117                                NT_TRANSACT_SET_SECURITY_DESC,
 118                                0,
 119                                NULL, 0, 0,
 120                                param, 8, 0,
 121                                pd.data_p, pd.data_offset, 0)) {
 122                 DEBUG(1,("Failed to send NT_TRANSACT_SET_SECURITY_DESC\n"));
 123                 goto cleanup;
 124         }
 125
 126
 127         if (!cli_receive_nt_trans(cli,
 128                                   &rparam, &rparam_count,
 129                                   &rdata, &rdata_count)) {
 130                 DEBUG(1,("NT_TRANSACT_SET_SECURITY_DESC failed\n"));
 131                 goto cleanup;
 132         }
 133
 134         ret = True;
 135
 136   cleanup:
 137
 138         safe_free(rparam);
 139         safe_free(rdata);
 140
 141         talloc_destroy(mem_ctx);
 142
 143         prs_mem_free(&pd);
 144         return ret;
 145 }
 146