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nixpkgs/pkgs/development/libraries/kde-frameworks/kinit/default.nix
Thomas Tuegel c75860918f
kinit: Increase environment size limit
start_kdeinit reads its environment over a pipe from start_kdeinit_wrapper. For
security, each environment entry must be smaller than 4kb by default. Qt-based
applications in Nixpkgs may have larger environments, and the recent upgrade to
Plasma 5.17 pushed start_kdeinit_wrapper over the limit. The limit is now
extended to 16kb.

This problem was not detected during testing because the failure is silent:
start_kdeinit will continue with an empty environment. In other circumstances,
this strategy might work, but it does not work on NixOS. This failure is now
treated as a fatal error.

Fixes: #79707
2020-02-17 08:21:39 -06:00

40 lines
1.3 KiB
Nix

{
mkDerivation, lib, copyPathsToStore, writeScript,
extra-cmake-modules, kdoctools,
kconfig, kcrash, ki18n, kio, kparts, kservice, kwindowsystem, plasma-framework
}:
let inherit (lib) getLib; in
mkDerivation {
name = "kinit";
meta = { maintainers = [ lib.maintainers.ttuegel ]; };
outputs = [ "out" "dev" ];
nativeBuildInputs = [ extra-cmake-modules kdoctools ];
buildInputs = [
kconfig kcrash ki18n kio kservice kwindowsystem
];
patches = [
./0001-kinit-libpath.patch
./0002-start_kdeinit-path.patch
./0003-kdeinit-extra-libs.patch
./0004-start_kdeinit-environ-hard-limit.patch
];
CXXFLAGS = [
''-DNIXPKGS_KF5_KIOCORE=\"${getLib kio}/lib/libKF5KIOCore.so.5\"''
''-DNIXPKGS_KF5_PARTS=\"${getLib kparts}/lib/libKF5Parts.so.5\"''
''-DNIXPKGS_KF5_PLASMA=\"${getLib plasma-framework}/lib/libKF5Plasma.so.5\"''
];
setupHook = writeScript "setup-hook.sh" ''
kinitFixupOutputHook() {
if [ $prefix != ''${!outputBin} ] && [ -d $prefix/lib ]; then
mkdir -p ''${!outputBin}/lib
find $prefix/lib -maxdepth 1 -name 'libkdeinit5_*.so' -exec ln -s \{\} ''${!outputBin}/lib \;
rmdir --ignore-fail-on-non-empty ''${!outputBin}/lib
fi
}
fixupOutputHooks+=(kinitFixupOutputHook)
'';
}