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831c700c5d
- The `-overlay` flag runs the specified binary inside an OverlayFS, since the /nix store may be in a different mount point than the user home, this patch explicitly bind mounts it so it's available inside the overlay. - profile builder: firejail provides facilities to build a new profiles. To do so, it execute the helper binary `fbuilder`, which in turn will execute firejail back with different options. This patch makes it use the binary available in PATH instead of the one produced at compile time. The compiled firejail binary doesn't have the necessary permissions, so the firejail NixOS module wraps it in a SUID wrapper available on PATH at runtime. Signed-off-by: Roosembert Palacios <roosemberth@posteo.ch>
90 lines
3.2 KiB
Nix
90 lines
3.2 KiB
Nix
{stdenv, fetchurl, fetchpatch, which, xdg-dbus-proxy, nixosTests}:
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let
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s = # Generated upstream information
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rec {
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baseName="firejail";
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version="0.9.64";
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name="${baseName}-${version}";
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url="mirror://sourceforge/firejail/firejail/firejail-${version}.tar.xz";
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sha256="1zgjwy2k57nx0r63fzr15gijah098ig0bll66jd615vc9q3snfz5";
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};
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buildInputs = [
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which
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];
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in
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stdenv.mkDerivation {
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inherit (s) name version;
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inherit buildInputs;
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src = fetchurl {
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inherit (s) url sha256;
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name = "${s.name}.tar.bz2";
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};
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patches = [
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# Adds the /nix directory when using an overlay.
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# Required to run any programs under this mode.
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./mount-nix-dir-on-overlay.patch
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# By default fbuilder hardcodes the firejail binary to the install path.
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# On NixOS the firejail binary is a setuid wrapper available in $PATH.
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./fbuilder-call-firejail-on-path.patch
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];
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prePatch = ''
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# Allow whitelisting ~/.nix-profile
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substituteInPlace etc/firejail.config --replace \
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'# follow-symlink-as-user yes' \
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'follow-symlink-as-user no'
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# Fix the path to 'xdg-dbus-proxy' hardcoded in the 'common.h' file
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substituteInPlace src/include/common.h \
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--replace '/usr/bin/xdg-dbus-proxy' '${xdg-dbus-proxy}/bin/xdg-dbus-proxy'
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'';
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preConfigure = ''
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sed -e 's@/bin/bash@${stdenv.shell}@g' -i $( grep -lr /bin/bash .)
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sed -e "s@/bin/cp@$(which cp)@g" -i $( grep -lr /bin/cp .)
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'';
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preBuild = ''
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sed -e "s@/etc/@$out/etc/@g" -e "/chmod u+s/d" -i Makefile
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'';
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# The profile files provided with the firejail distribution include `.local`
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# profile files using relative paths. The way firejail works when it comes to
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# handling includes is by looking target files up in `~/.config/firejail`
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# first, and then trying `SYSCONFDIR`. The latter normally points to
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# `/etc/filejail`, but in the case of nixos points to the nix store. This
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# makes it effectively impossible to place any profile files in
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# `/etc/firejail`.
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#
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# The workaround applied below is by creating a set of `.local` files which
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# only contain respective includes to `/etc/firejail`. This way
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# `~/.config/firejail` still takes precedence, but `/etc/firejail` will also
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# be searched in second order. This replicates the behaviour from
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# non-nixos platforms.
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#
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# See https://github.com/netblue30/firejail/blob/e4cb6b42743ad18bd11d07fd32b51e8576239318/src/firejail/profile.c#L68-L83
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# for the profile file lookup implementation.
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postInstall = ''
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for local in $(grep -Eh '^include.*local$' $out/etc/firejail/*.profile | awk '{print $2}' | sort | uniq)
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do
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echo "include /etc/firejail/$local" >$out/etc/firejail/$local
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done
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'';
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# At high parallelism, the build sometimes fails with:
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# bash: src/fsec-optimize/fsec-optimize: No such file or directory
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enableParallelBuilding = false;
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passthru.tests = nixosTests.firejail;
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meta = {
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inherit (s) version;
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description = ''Namespace-based sandboxing tool for Linux'';
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license = stdenv.lib.licenses.gpl2Plus ;
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maintainers = [stdenv.lib.maintainers.raskin];
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platforms = stdenv.lib.platforms.linux;
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homepage = "https://firejail.wordpress.com/";
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downloadPage = "https://sourceforge.net/projects/firejail/files/firejail/";
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};
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}
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