CIFS: Move is_path_accessible to ops struct

Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index 96eb06ff9dd1..43f3881ad3b8 100644
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -417,6 +417,30 @@ cifs_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon)
         CIFSSMBQFSAttributeInfo(xid, tcon);
 }
 
+static int
+cifs_is_path_accessible(const unsigned int xid, struct cifs_tcon *tcon,
+                        struct cifs_sb_info *cifs_sb, const char *full_path)
+{
+        int rc;
+        FILE_ALL_INFO *file_info;
+
+        file_info = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL);
+        if (file_info == NULL)
+                return -ENOMEM;
+
+        rc = CIFSSMBQPathInfo(xid, tcon, full_path, file_info,
+                              0 /* not legacy */, cifs_sb->local_nls,
+                              cifs_sb->mnt_cifs_flags &
+                                CIFS_MOUNT_MAP_SPECIAL_CHR);
+
+        if (rc == -EOPNOTSUPP || rc == -EINVAL)
+                rc = SMBQueryInformation(xid, tcon, full_path, file_info,
+                                cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
+                                  CIFS_MOUNT_MAP_SPECIAL_CHR);
+        kfree(file_info);
+        return rc;
+}
+
 struct smb_version_operations smb1_operations = {
         .send_cancel = send_nt_cancel,
         .compare_fids = cifs_compare_fids,
@@ -443,6 +467,7 @@ struct smb_version_operations smb1_operations = {
         .tree_disconnect = CIFSSMBTDis,
         .get_dfs_refer = CIFSGetDFSRefer,
         .qfs_tcon = cifs_qfs_tcon,
+        .is_path_accessible = cifs_is_path_accessible,
 };
 
 struct smb_version_values smb1_values = {