source3/modules/non_posix_acls.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Access Control List handling
   4    Copyright (C) Andrew Bartlett 2012.
   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 "../librpc/gen_ndr/ndr_xattr.h"
  22 #include "modules/non_posix_acls.h"
  23
  24 int non_posix_sys_acl_blob_get_file_helper(vfs_handle_struct *handle,
  25                                            const char *path_p,
  26                                            DATA_BLOB acl_as_blob,
  27                                            TALLOC_CTX *mem_ctx,
  28                                            DATA_BLOB *blob)
  29 {
  30         int ret;
  31         TALLOC_CTX *frame = talloc_stackframe();
  32         struct xattr_sys_acl_hash_wrapper acl_wrapper = {};
  33         struct smb_filename *smb_fname = NULL;
  34         NTSTATUS status = create_synthetic_smb_fname_split(frame, path_p,
  35                                                            NULL,
  36                                                            &smb_fname);
  37         if (!NT_STATUS_IS_OK(status)) {
  38                 errno = map_errno_from_nt_status(status);
  39                 TALLOC_FREE(frame);
  40                 return -1;
  41         }
  42
  43         acl_wrapper.acl_as_blob = acl_as_blob;
  44
  45         ret = smb_vfs_call_stat(handle, smb_fname);
  46         if (ret == -1) {
  47                 TALLOC_FREE(frame);
  48                 return -1;
  49         }
  50
  51         acl_wrapper.owner = smb_fname->st.st_ex_uid;
  52         acl_wrapper.group = smb_fname->st.st_ex_gid;
  53         acl_wrapper.mode = smb_fname->st.st_ex_mode;
  54
  55         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_push_struct_blob(blob, mem_ctx,
  56                                                           &acl_wrapper,
  57                                                           (ndr_push_flags_fn_t)ndr_push_xattr_sys_acl_hash_wrapper))) {
  58                 errno = EINVAL;
  59                 TALLOC_FREE(frame);
  60                 return -1;
  61         }
  62
  63         TALLOC_FREE(frame);
  64         return 0;
  65 }
  66
  67 int non_posix_sys_acl_blob_get_fd_helper(vfs_handle_struct *handle,
  68                                          files_struct *fsp,
  69                                          DATA_BLOB acl_as_blob,
  70                                          TALLOC_CTX *mem_ctx,
  71                                          DATA_BLOB *blob)
  72 {
  73         SMB_STRUCT_STAT sbuf;
  74         TALLOC_CTX *frame;
  75         struct xattr_sys_acl_hash_wrapper acl_wrapper;
  76         int ret;
  77
  78         frame = talloc_stackframe();
  79
  80         acl_wrapper.acl_as_blob = acl_as_blob;
  81
  82         if (!VALID_STAT(fsp->fsp_name->st)) {
  83                 ret = smb_vfs_call_fstat(handle, fsp, &sbuf);
  84                 if (ret == -1) {
  85                         TALLOC_FREE(frame);
  86                         return -1;
  87                 }
  88         } else {
  89                 sbuf = fsp->fsp_name->st;
  90         }
  91
  92         acl_wrapper.owner = sbuf.st_ex_uid;
  93         acl_wrapper.group = sbuf.st_ex_gid;
  94         acl_wrapper.mode = sbuf.st_ex_mode;
  95
  96         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_push_struct_blob(blob, mem_ctx,
  97                                                           &acl_wrapper,
  98                                                           (ndr_push_flags_fn_t)ndr_push_xattr_sys_acl_hash_wrapper))) {
  99                 errno = EINVAL;
 100                 TALLOC_FREE(frame);
 101                 return -1;
 102         }
 103
 104         TALLOC_FREE(frame);
 105         return 0;
 106 }