1.\" Copyright (c) 2017 Netflix, Inc 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" $FreeBSD$ 26.\" 27.Dd December 1, 2017 28.Dt EFIDP 8 29.Os 30.Sh NAME 31.Nm efidp 32.Nd UEFI Device Path manipulation 33.Sh SYNOPSIS 34.Nm 35.Op Fl fp 36.Op Fl -parse 37.Op Fl -format 38.Sh DESCRIPTION 39This program converts 40.Dq Unified Extensible Firmware Interface 41.Pq UEFI 42Device Paths, as defined in the UEFI standard, to and from binary form. 43Binary and textual forms are defined in Chapter 9 of the UEFI 44Specification. 45.Pp 46.Bl -tag -width 20m 47.It Fl f Fl -format 48Formats a binary UEFI Device Path into its canonical UTF-8 textual form. 49A binary Device Path can be no longer than 65536 bytes. 50The textual form must fit into 65536 bytes. 51Multiple binary device paths may be specified. 52.It Fl p Fl -parse 53Parses a UEFI Device Path UTF-8 specification and outputs the binary 54Device Path form. 55Only one device path is parsed, even if there are multiple present in 56the input. 57Leading white space is ignored. 58The resulting binary Device Path can be no longer than 65536 bytes. 59Multiple lines may be specified. 60Each one will be translated. 61.It Fl e Fl --to-efi 62Translate a Unix file path to an EFI Device Path. 63The output is the textual representation of the EFI Device Path. 64.It Fl u Fl --to-unix 65Translate an EFI device path to a Unix file path. 66The input is the textual representation of the EFI Device Path. 67.El 68.Sh SEE ALSO 69Appendix A of the UEFI specification has the format for GUIDs. 70All GUIDs 71.Dq Globally Unique Identifiers 72have the format described in RFC 4122. 73.Pp 74The Unified Extensible Firmware Interface Specification is available 75from 76.Pa www.uefi.org . 77.Sh HISTORY 78The 79.Nm 80utility first appeared in 81.Fx 11.1 . 82