The underlying operating system for DifuseHQ's embedded routing devices
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Konstantin Demin e1bd9645b6 dropbear: roll up recipes into mapping lists
this commit removes manual recipes for options and introduces mapping lists:
- DB_OPT_COMMON holds option mappings which are common for all builds;
- DB_OPT_CONFIG holds option mappings which are depend on config settings.

DB_OPT_COMMON is space-separated list of 'words', each of them is in format:
  'header_option|value'

'header_option' is added with value 'value' to 'localoptions.h'.

if 'header_option' is preceded by two exclamation marks ('!!')
then option is not added to 'localoptions.h' but replaced in 'sysoptions.h'.

in short:
   option|value - add option to localoptions.h
 !!option|value - replace option in sysoptions.h

DB_OPT_CONFIG is space-separated list of 'words', each of them is in format:
  'header_option|config_variable|value_enabled|value_disabled'

'header_option' is handled likewise in DB_OPT_COMMON.

if 'config_variable' is enabled (technically: not disabled)
then 'header_option' is set to 'value_enabled' and 'value_disabled' otherwise.

in short:
   option|config|enabled|disabled = add option to localoptions.h
 !!option|config|enabled|disabled = replace option in sysoptions.h

   option := (config) ? enabled : disabled

If you're not sure that option's value doesn't have '|' within - add your recipe
manually right after '$(Build/Configure/dropbear_headers)' and write some words
about your decision.

PS about two exclamation marks:
early idea was to use one exclamation mark to denote such header options
but then i thought single exclamation mark may be overlooked by mistake.

Signed-off-by: Konstantin Demin <rockdrilla@gmail.com>
2020-12-11 13:48:24 +01:00
.github build: Update README & github help 2018-07-08 09:41:53 +01:00
config config: add big EXPERIMENTAL option 2020-12-10 19:33:51 +00:00
include kernel: bump 5.4 to 5.4.82 2020-12-09 17:05:40 +01:00
package dropbear: roll up recipes into mapping lists 2020-12-11 13:48:24 +01:00
scripts scripts/feeds: fix preference of package install 2020-12-09 23:25:05 -10:00
target realtek: Add missing case in switch statement 2020-12-11 13:48:24 +01:00
toolchain glibc: update to latest 2.32 commit (BZ# 26224) 2020-12-05 20:56:44 +01:00
tools firmware-utils: tplink-safeloader: refactor meta-partition padding 2020-12-07 01:57:19 +01:00
.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
feeds.conf.default feeds: add freifunk feed 2020-06-24 14:58:17 +02:00
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 build: require rsync 2020-12-07 18:23:13 +02:00
rules.mk rules.mk: use -fPIC instead of -fpic on arm64 2020-12-07 18:23:13 +02:00

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 rsync

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