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 struct smb_filename *smb_fname_in,
  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 = cp_smb_filename_nostream(frame,
  34                                                 smb_fname_in);
  35
  36         if (smb_fname == NULL) {
  37                 TALLOC_FREE(frame);
  38                 return -1;
  39         }
  40
  41         acl_wrapper.acl_as_blob = acl_as_blob;
  42
  43         ret = smb_vfs_call_stat(handle, smb_fname);
  44         if (ret == -1) {
  45                 TALLOC_FREE(frame);
  46                 return -1;
  47         }
  48
  49         acl_wrapper.owner = smb_fname->st.st_ex_uid;
  50         acl_wrapper.group = smb_fname->st.st_ex_gid;
  51         acl_wrapper.mode = smb_fname->st.st_ex_mode;
  52
  53         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_push_struct_blob(blob, mem_ctx,
  54                                                           &acl_wrapper,
  55                                                           (ndr_push_flags_fn_t)ndr_push_xattr_sys_acl_hash_wrapper))) {
  56                 errno = EINVAL;
  57                 TALLOC_FREE(frame);
  58                 return -1;
  59         }
  60
  61         TALLOC_FREE(frame);
  62         return 0;
  63 }
  64
  65 int non_posix_sys_acl_blob_get_fd_helper(vfs_handle_struct *handle,
  66                                          files_struct *fsp,
  67                                          DATA_BLOB acl_as_blob,
  68                                          TALLOC_CTX *mem_ctx,
  69                                          DATA_BLOB *blob)
  70 {
  71         SMB_STRUCT_STAT sbuf;
  72         TALLOC_CTX *frame;
  73         struct xattr_sys_acl_hash_wrapper acl_wrapper;
  74         int ret;
  75
  76         frame = talloc_stackframe();
  77
  78         acl_wrapper.acl_as_blob = acl_as_blob;
  79
  80         if (!VALID_STAT(fsp->fsp_name->st)) {
  81                 ret = smb_vfs_call_fstat(handle, fsp, &sbuf);
  82                 if (ret == -1) {
  83                         TALLOC_FREE(frame);
  84                         return -1;
  85                 }
  86         } else {
  87                 sbuf = fsp->fsp_name->st;
  88         }
  89
  90         acl_wrapper.owner = sbuf.st_ex_uid;
  91         acl_wrapper.group = sbuf.st_ex_gid;
  92         acl_wrapper.mode = sbuf.st_ex_mode;
  93
  94         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_push_struct_blob(blob, mem_ctx,
  95                                                           &acl_wrapper,
  96                                                           (ndr_push_flags_fn_t)ndr_push_xattr_sys_acl_hash_wrapper))) {
  97                 errno = EINVAL;
  98                 TALLOC_FREE(frame);
  99                 return -1;
 100         }
 101
 102         TALLOC_FREE(frame);
 103         return 0;
 104 }