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Paul Spooren e34f04f4bc build: use mkhash for IPK metadata checksums
When setting the option IPK_FILES_CHECKSUMS the build system stores
checksums of all package file as metadata. In combination with pkg_check
this allows to see if a package is broken, e.g. caused by bad flash.

To create those checksums the tool `sha256sum` were used while the rest
of OpenWrt uses `mkhash`, a small & fast implementation of sha256. As
the build system does not check the existence of `sha256sum` and the
stderr output is moved to /dev/null, a situation where the option is
enabled but no actual checksum are created may occur.

Instead of adding `sha256sum` as a requirement, this replaces it with
`mkhash sha256` and adapts the `sed` pipe command to fit spacing.

CC: Xu Wang <xwang1498@gmx.com>
CC: Michal Hrusecky <Michal@Hrusecky.net>

Signed-off-by: Paul Spooren <mail@aparcar.org>
2020-11-26 19:06:13 -10:00
.github build: Update README & github help 2018-07-08 09:41:53 +01:00
config tools/sstrip: update to latest version 2020-11-26 12:44:25 -10:00
include build: use mkhash for IPK metadata checksums 2020-11-26 19:06:13 -10:00
package umdns: update seccomp filter rules 2020-11-27 01:23:43 +00:00
scripts scripts: add size_compare.sh 2020-11-24 18:18:48 -10:00
target initramfs: switch to tmpfs to fix ujail 2020-11-27 01:23:43 +00:00
toolchain musl: handle wcsnrtombs destination buffer overflow (CVE-2020-28928) 2020-11-20 13:24:48 +01:00
tools tools/sstrip: update to latest version 2020-11-26 12:44:25 -10:00
.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 build: improve ccache support 2020-07-11 15:19:53 +02:00
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 LICENSE: use updated GNU copy 2020-08-02 15:54:43 +02:00
Makefile build: improve ccache support 2020-07-11 15:19:53 +02:00
README.md README: port to 21st century 2020-08-02 15:44:40 +02:00
feeds.conf.default feeds: add freifunk feed 2020-06-24 14:58:17 +02:00
logo.svg README: port to 21st century 2020-08-02 15:44:40 +02:00
rules.mk tools/sstrip: update to latest version 2020-11-26 12:44:25 -10:00

README.md

OpenWrt logo

OpenWrt Project is a Linux operating system targeting embedded devices. Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to customize the device through the use of packages to suit any application. For developers, OpenWrt is the framework to build an application without having to build a complete firmware around it; for users this means the ability for full customization, to use the device in ways never envisioned.

Sunshine!

Development

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

Requirements

You need the following tools to compile OpenWrt, the package names vary between distributions. A complete list with distribution specific packages is found in the Build System Setup documentation.

gcc binutils bzip2 flex python3 perl make find grep diff unzip gawk getopt
subversion libz-dev libc-dev

Quickstart

  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 GNU/Linux kernel & all chosen applications for your target system.

The main repository uses multiple sub-repositories to manage packages of different categories. All packages are installed via the OpenWrt package manager called opkg. If you're looking to develop the web interface or port packages to OpenWrt, please find the fitting repository below.

Support Information

For a list of supported devices see the OpenWrt Hardware Database

Documentation

Support Community

  • Forum: For usage, projects, discussions and hardware advise.
  • Support Chat: Channel #openwrt on freenode.net.

Developer Community

License

OpenWrt is licensed under GPL-2.0