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Jo-Philipp Wich 07dcbfa6e8 fwtool: do not omit final 16 byte when image does not contain signature
The fwutil command will interpret the final 16 byte of a given firmware
image files as "struct fwimage_trailer".

In case these bytes do look like a valid trailer, we must ensure that we
print them out along with the remainder of the image to not accidentally
truncate non-trailer-images by 16 bytes when they're piped through fwtool,
e.g. as part of an image verification command sequence.

Some command sequences pipe images through fwtool in order to strip any
possible metadata, certificate or signature trailers and do not expect
bare images without any of that metadata to get truncated as other non-
fwtool specific metadata is expected at the end of the file, e.g. an
information block with an md5sum in case of the combined image format.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>
(cherry picked from commit 889b841048)
2019-10-17 17:08:09 +02:00
.github build: Update README & github help 2018-07-08 09:41:53 +01:00
config build: add buildinfo files for reproducibility 2019-09-04 13:39:13 +02:00
include kernel: bump 4.14 to 4.14.149 2019-10-15 16:13:06 +02:00
package fwtool: do not omit final 16 byte when image does not contain signature 2019-10-17 17:08:09 +02:00
scripts build: fix xconfig target 2019-10-09 21:07:23 +02:00
target bcm53xx: sysupgrade: support Luxul NAND devices 2019-10-15 20:26:22 +02:00
toolchain toolchain/gdb: bump to 8.3.1 2019-10-15 16:13:06 +02:00
tools tools: mkimage: fix __u64 typedef conflict with new glibc 2019-09-12 02:25:03 +00:00
.gitattributes add .gitattributes to prevent the git autocrlf option from messing with CRLF/LF in files 2012-05-08 13:30:49 +00:00
.gitignore .gitignore: add .project & .cproject for eclipse users 2018-01-17 11:07:17 +01:00
BSDmakefile add missing copyright header 2007-02-26 01:05:09 +00:00
Config.in merge: base: update base-files and basic config 2017-12-08 19:41:18 +01:00
LICENSE finally move buildroot-ng to trunk 2016-03-20 17:29:15 +01:00
Makefile build: fix host menu config targets using ncurses 2019-10-09 21:07:13 +02:00
README build: README punctuation pendantry 2018-07-08 12:05:16 +01:00
feeds.conf.default OpenWrt v19.07: set branch defaults 2019-06-11 01:53:08 +02:00
rules.mk librpc: remove package 2019-01-22 13:29:46 +01:00

README

  _______                     ________        __
 |       |.-----.-----.-----.|  |  |  |.----.|  |_
 |   -   ||  _  |  -__|     ||  |  |  ||   _||   _|
 |_______||   __|_____|__|__||________||__|  |____|
          |__| W I R E L E S S   F R E E D O M
 -----------------------------------------------------

This is the buildsystem for the OpenWrt Linux distribution.

To build your own firmware you need a Linux, BSD or MacOSX system (case
sensitive filesystem required). Cygwin is unsupported because of the lack
of a case sensitive file system.

You need gcc, binutils, bzip2, flex, python, perl, make, find, grep, diff,
unzip, gawk, getopt, subversion, libz-dev and libc headers installed.

1. Run "./scripts/feeds update -a" to obtain all the latest package definitions
defined in feeds.conf / feeds.conf.default

2. Run "./scripts/feeds install -a" to install symlinks for all obtained
packages into package/feeds/

3. Run "make menuconfig" to select your preferred configuration for the
toolchain, target system & firmware packages.

4. Run "make" to build your firmware. This will download all sources, build
the cross-compile toolchain and then cross-compile the Linux kernel & all
chosen applications for your target system.

Sunshine!
	Your OpenWrt Community
	http://www.openwrt.org