source3/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 3 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, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "includes.h"
  21 #include "libsmb/libsmb.h"
  22 #include "../libcli/security/secdesc.h"
  23
  24 NTSTATUS cli_query_secdesc(struct cli_state *cli, uint16_t fnum,
  25                            TALLOC_CTX *mem_ctx, struct security_descriptor **sd)
  26 {
  27         uint8_t param[8];
  28         uint8_t *rdata=NULL;
  29         uint32_t rdata_count=0;
  30         NTSTATUS status;
  31         struct security_descriptor *lsd;
  32
  33         SIVAL(param, 0, fnum);
  34         SIVAL(param, 4, 0x7);
  35
  36         status = cli_trans(talloc_tos(), cli, SMBnttrans,
  37                            NULL, -1, /* name, fid */
  38                            NT_TRANSACT_QUERY_SECURITY_DESC, 0, /* function, flags */
  39                            NULL, 0, 0, /* setup, length, max */
  40                            param, 8, 4, /* param, length, max */
  41                            NULL, 0, 0x10000, /* data, length, max */
  42                            NULL,             /* recv_flags2 */
  43                            NULL, 0, NULL, /* rsetup, length */
  44                            NULL, 0, NULL,
  45                            &rdata, 0, &rdata_count);
  46
  47         if (!NT_STATUS_IS_OK(status)) {
  48                 DEBUG(1, ("NT_TRANSACT_QUERY_SECURITY_DESC failed: %s\n",
  49                           nt_errstr(status)));
  50                 goto cleanup;
  51         }
  52
  53         status = unmarshall_sec_desc(mem_ctx, (uint8 *)rdata, rdata_count,
  54                                      &lsd);
  55         if (!NT_STATUS_IS_OK(status)) {
  56                 DEBUG(10, ("unmarshall_sec_desc failed: %s\n",
  57                            nt_errstr(status)));
  58                 goto cleanup;
  59         }
  60
  61         if (sd != NULL) {
  62                 *sd = lsd;
  63         } else {
  64                 TALLOC_FREE(lsd);
  65         }
  66
  67  cleanup:
  68
  69         TALLOC_FREE(rdata);
  70
  71         return status;
  72 }
  73
  74 /****************************************************************************
  75   set the security descriptor for a open file
  76  ****************************************************************************/
  77 NTSTATUS cli_set_secdesc(struct cli_state *cli, uint16_t fnum,
  78                          const struct security_descriptor *sd)
  79 {
  80         uint8_t param[8];
  81         uint32 sec_info = 0;
  82         uint8 *data;
  83         size_t len;
  84         NTSTATUS status;
  85
  86         status = marshall_sec_desc(talloc_tos(), sd, &data, &len);
  87         if (!NT_STATUS_IS_OK(status)) {
  88                 DEBUG(10, ("marshall_sec_desc failed: %s\n",
  89                            nt_errstr(status)));
  90                 return status;
  91         }
  92
  93         SIVAL(param, 0, fnum);
  94
  95         if (sd->dacl || (sd->type & SEC_DESC_DACL_PRESENT))
  96                 sec_info |= SECINFO_DACL;
  97         if (sd->sacl || (sd->type & SEC_DESC_SACL_PRESENT))
  98                 sec_info |= SECINFO_SACL;
  99         if (sd->owner_sid)
 100                 sec_info |= SECINFO_OWNER;
 101         if (sd->group_sid)
 102                 sec_info |= SECINFO_GROUP;
 103         SSVAL(param, 4, sec_info);
 104
 105         status = cli_trans(talloc_tos(), cli, SMBnttrans,
 106                            NULL, -1, /* name, fid */
 107                            NT_TRANSACT_SET_SECURITY_DESC, 0,
 108                            NULL, 0, 0, /* setup */
 109                            param, 8, 0, /* param */
 110                            data, len, 0, /* data */
 111                            NULL,         /* recv_flags2 */
 112                            NULL, 0, NULL, /* rsetup */
 113                            NULL, 0, NULL, /* rparam */
 114                            NULL, 0, NULL); /* rdata */
 115         TALLOC_FREE(data);
 116         if (!NT_STATUS_IS_OK(status)) {
 117                 DEBUG(1, ("Failed to send NT_TRANSACT_SET_SECURITY_DESC: %s\n",
 118                           nt_errstr(status)));
 119         }
 120         return status;
 121 }