libcli/smb/smb2_posix.c

   1 /*
   2  * Unix SMB/CIFS implementation.
   3  *
   4  * SMB2 Posix context handling
   5  *
   6  * Copyright (C) Jeremy Allison 2019
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 3 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20  */
  21
  22 #include "replace.h"
  23 #include "libcli/smb/smb2_posix.h"
  24 #include "libcli/smb/smb2_constants.h"
  25 #include "lib/util/byteorder.h"
  26
  27 NTSTATUS make_smb2_posix_create_ctx(
  28         TALLOC_CTX *mem_ctx,
  29         struct smb2_create_blobs **crb,
  30         mode_t mode)
  31 {
  32         struct smb2_create_blobs *cblobs = NULL;
  33         uint8_t linear_mode[4];
  34         DATA_BLOB blob = { .data=linear_mode, .length=sizeof(linear_mode) };
  35         NTSTATUS status;
  36
  37         cblobs = talloc_zero(mem_ctx, struct smb2_create_blobs);
  38         if (cblobs == NULL) {
  39                 return NT_STATUS_NO_MEMORY;
  40         }
  41         SIVAL(&linear_mode,0, unix_perms_to_wire(mode & ~S_IFMT));
  42
  43         status = smb2_create_blob_add(
  44                 cblobs, cblobs, SMB2_CREATE_TAG_POSIX, blob);
  45         if (!NT_STATUS_IS_OK(status)) {
  46                 TALLOC_FREE(cblobs);
  47                 return status;
  48         }
  49         *crb = cblobs;
  50         return NT_STATUS_OK;
  51 }