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Commit 221d1d79 authored by Jeff Layton's avatar Jeff Layton Committed by Steve French
Browse files

cifs: add fallback in is_path_accessible for old servers 



The is_path_accessible check uses a QPathInfo call, which isn't
supported by ancient win9x era servers. Fall back to an older
SMBQueryInfo call if it fails with the magic error codes.

Cc: stable@kernel.org
Reported-and-Tested-by: default avatarSandro Bonazzola <sandro.bonazzola@gmail.com>
Signed-off-by: default avatarJeff Layton <jlayton@redhat.com>
Signed-off-by: default avatarSteve French <sfrench@us.ibm.com>
parent c1d10d18

fs/cifs/connect.c

+5 −0
Original line number Diff line number Diff line
@@ -2673,6 +2673,11 @@ is_path_accessible(int xid, struct cifsTconInfo *tcon, 
			      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, pfile_info,

				cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &

				  CIFS_MOUNT_MAP_SPECIAL_CHR);

	kfree(pfile_info);

	return rc;

}