Prepare docker container for building openwrt

conf_sources.sh

#/bin/bash

# taken from:
# https://howto.biapy.com/en/debian-gnu-linux/system/software/setup-the-contrib-and-non-free-debian-repositories

command apt-get update && apt-get -y install lsb-release

DEBIAN_VERSION="$(command lsb_release -cs)"

MIRROR=$(command egrep "^deb.*${DEBIAN_VERSION}" '/etc/apt/sources.list' \
    | command egrep -v "updates|-src|cdrom" \
    | cut --delimiter=" " --fields=2)

command echo "# Debian contrib repository.
deb ${MIRROR} ${DEBIAN_VERSION} contrib
#deb ${MIRROR} ${DEBIAN_VERSION}-updates contrib
deb http://security.debian.org ${DEBIAN_VERSION}/updates contrib" \
    > '/etc/apt/sources.list.d/contrib.list'

Dockerfile

FROM debian

# Add aditional debian sources (contrib,...) into sources.d
COPY conf_sources.sh /tmp/
RUN /tmp/conf_sources.sh

# Install and set-up the current image - run only when creating the image
RUN apt-get update && apt-get install -y \
  build-essential \
  libncurses5-dev \
  gawk \
  git \
  subversion \
  libssl-dev \
  gettext \
  unzip \
  zlib1g-dev \
  file python \
  mercurial \
  flex \
  quilt \
  xsltproc \
  libxml-parser-perl \
  bzr \
  ecj \
  cvs \
  wget \
  b43-fwcutter


# Default working directory of all containers from this image
WORKDIR .

# Extract openwrt sources
ADD openwrt.src.tar /openwrt

Quirks:

1. adjust kernel to 3.18.20 to allow use of kernel modules from chaos-calmer (https://forum.openwrt.org/viewtopic.php?id=23570)
   vi /openwrt/target/linux/brcm2708/Makefile

   ...
   KERNEL_PATCHVER:=3.18.20
   ...
   

2. apply rpi-patches (specially dm9601 crash)
   https://forum.openwrt.org/viewtopic.php?id=56846
   https://github.com/kmtaylor/rpi_patches (fix for above)

3. create openwrt.src.tar from openwrt git repo with patches applied

4. b43-tools not installed (https://dev.openwrt.org/ticket/15186)
   make tools/b43-tools/{compile,install}