liminix-fork/pkgs/mac80211/default.nix

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# make out-of-tree modules given a backported kernel source tree
{
extraConfig ? {}
, drivers ? [ ]
, kernel-backport
, stdenv
, writeText
, klibBuild ? null
, buildPackages
, fetchFromGitHub
, liminix
, lib
}:
let
arch = stdenv.hostPlatform.linuxArch;
openwrtSrc = fetchFromGitHub {
name = "openwrt-source";
repo = "openwrt";
owner = "openwrt";
rev = "a5265497a4f6da158e95d6a450cb2cb6dc085cab";
hash = "sha256-YYi4gkpLjbOK7bM2MGQjAyEBuXJ9JNXoz/JEmYf8xE8=";
};
inherit (liminix.services) oneshot longrun;
inherit (lib.lists) foldl;
configs = {
ath9k.kconfig = {
WLAN_VENDOR_ATH = "y";
ATH_COMMON = "m";
ATH9K = "m";
ATH9K_AHB = "y";
BACKPORTED_ATH9K_AHB = "y";
};
ath9k_pci = {
module = "ath9k";
kconfig = {
WLAN_VENDOR_ATH = "y";
ATH_COMMON = "m";
ATH9K = "m";
ATH9K_PCI = "y";
};
};
ath10k_pci.kconfig = {
WLAN_VENDOR_ATH = "y";
ATH_COMMON = "m";
ATH10K = "m";
ATH10K_PCI = "y";
ATH10K_DEBUG = "y";
};
rt2800soc.kconfig = {
WLAN_VENDOR_RALINK = "y";
RT2800SOC = "m";
RT2X00 = "m";
};
mt7603e.kconfig = { # XXX find a better name for this
WLAN_VENDOR_RALINK = "y";
WLAN_VENDOR_MEDIATEK = "y";
MT7603E = "y";
};
mt7915e.kconfig = {
MT7915E = "m";
};
mt7615e.kconfig = {
MT7615E = "m";
MT7622_WMAC = "y";
};
mac80211_hwsim.kconfig = {
MAC80211_HWSIM = "y";
};
};
kconfig = (foldl (config: d: (config // configs.${d}.kconfig)) {
WLAN = "y";
CFG80211 = "m";
MAC80211 = "m";
# (nixwrt comment) I am reluctant to have to enable this but
# can't transmit on 5GHz bands without it (they are all marked
# NO-IR)
CFG80211_CERTIFICATION_ONUS = "y";
# (nixwrt comment) can't get signed regdb to work rn, it just
# gives me "loaded regulatory.db is malformed or signature is
# missing/invalid"
CFG80211_REQUIRE_SIGNED_REGDB = "n"; # depends on ONUS
CFG80211_CRDA_SUPPORT = "n";
MAC80211_MESH = "y";
} drivers) // extraConfig;
writeConfig = name : config: writeText name
(builtins.concatStringsSep
"\n"
(lib.mapAttrsToList
(name: value: (if value == "n" then "# CPTCFG_${name} is not set" else "CPTCFG_${name}=${value}"))
config
));
kconfigFile = writeConfig "backports_kconfig" kconfig;
src = kernel-backport;
CROSS_COMPILE = stdenv.cc.bintools.targetPrefix;
CC = "${buildPackages.stdenv.cc}/bin/gcc";
module = stdenv.mkDerivation {
name = "mac80211";
inherit src;
hardeningDisable = ["all"];
nativeBuildInputs = [buildPackages.stdenv.cc] ++
(with buildPackages.pkgs;
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[bc bison flex pkg-config openssl
which kmod cpio
]);
inherit CC CROSS_COMPILE;
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ARCH = arch;
dontStrip = true;
dontPatchELF = true;
phases = [
"unpackPhase"
"patchFromOpenwrt"
"configurePhase"
"checkConfigurationPhase"
"buildPhase"
"installPhase"
];
patchFromOpenwrt = ''
mac80211=${openwrtSrc}/package/kernel/mac80211
echo $mac80211
for i in $(ls $mac80211/patches/build/ | grep -v 015-ipw200); do
echo $i; (patch -p1 -N <$mac80211/patches/build/$i)
done
for i in $(ls $mac80211/patches/rt2x00/ | grep -v 009-rt2x00-don-t | grep -v 013-rt2x00-set-correct | grep -v 014 | grep -v 015 | grep -v 016); do
echo $i; (patch -p1 -N <$mac80211/patches/rt2x00/$i)
done
for i in $mac80211/patches/ath/*; do echo $i; (patch -p1 -N <$i) ;done
for i in $mac80211/patches/ath9k/*; do echo $i; (patch -p1 -N <$i) ;done
'';
configurePhase = ''
cp ${kconfigFile} .config
cp ${kconfigFile} .config.orig
chmod +w .config .config.orig
make V=1 CC=${CC} SHELL=`type -p bash` LEX=flex KLIB_BUILD=${klibBuild} olddefconfig
'';
checkConfigurationPhase = ''
echo Checking required config items:
if comm -2 -3 <(awk -F= '/CPTCFG/ {print $1}' ${kconfigFile} |sort) <(awk -F= '/CPTCFG/ {print $1}' .config|sort) |grep '.' ; then
echo -e "^^^ Some configuration lost :-(\nPerhaps you have mutually incompatible settings, or have disabled options on which these depend.\n"
exit 0
fi
echo "OK"
'';
KBUILD_BUILD_HOST = "liminix.builder";
buildPhase = ''
patchShebangs scripts/
echo ${klibBuild}
make V=1 SHELL=`type -p bash` KLIB_BUILD=${klibBuild} modules
find . -name \*.ko | xargs ${CROSS_COMPILE}strip --strip-debug
'';
installPhase = ''
mkdir -p $out/lib/modules/0.0
find . -name \*.ko | cpio --make-directories -p $out/lib/modules/0.0
depmod -b $out -v 0.0
touch $out/load.sh
for i in ${lib.concatStringsSep " "
(map
(d: let c = { module = d; } // configs.${d} ;
in c.module)
drivers)}; do
modprobe -S 0.0 -d $out --show-depends $i >> $out/load.sh
done
tac < $out/load.sh | sed 's/^insmod/rmmod/g' > $out/unload.sh
'';
};
in oneshot {
name = "wlan.module";
up = "sh ${module}/load.sh";
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down = "sh ${module}/unload.sh";
}