76 lines
2.2 KiB
Nix
76 lines
2.2 KiB
Nix
{ stdenv, fetchurl, makeWrapper, dbus, libxml2, pam, pkgconfig, pmount, pythonPackages, writeScript }:
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let
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# Search in the environment if the same program exists with a set uid or
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# set gid bit. If it exists, run the first program found, otherwise run
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# the default binary.
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useSetUID = drv: path:
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let
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name = baseNameOf path;
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bin = "${drv}${path}";
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in assert name != "";
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writeScript "setUID-${name}" ''
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#!${stdenv.shell}
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inode=$(stat -Lc %i ${bin})
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for file in $(type -ap ${name}); do
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case $(stat -Lc %a $file) in
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([2-7][0-7][0-7][0-7])
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if test -r "$file".real; then
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orig=$(cat "$file".real)
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if test $inode = $(stat -Lc %i "$orig"); then
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exec "$file" "$@"
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fi
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fi;;
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esac
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done
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exec ${bin} "$@"
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'';
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pmountBin = useSetUID pmount "/bin/pmount";
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pumountBin = useSetUID pmount "/bin/pumount";
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inherit (pythonPackages) python dbus-python;
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in
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stdenv.mkDerivation rec {
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name = "pam_usb-0.5.0";
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src = fetchurl {
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url = "mirror://sourceforge/pamusb/${name}.tar.gz";
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sha256 = "1g1w0s9d8mfld8abrn405ll5grv3xgs0b0hsganrz6qafdq9j7q1";
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};
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buildInputs = [
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makeWrapper
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# pam_usb dependencies
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dbus libxml2 pam pmount pkgconfig
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# pam_usb's tools dependencies
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python
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# cElementTree is included with python 2.5 and later.
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];
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preBuild = ''
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makeFlagsArray=(DESTDIR=$out)
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substituteInPlace ./src/volume.c \
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--replace 'pmount' '${pmountBin}' \
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--replace 'pumount' '${pumountBin}'
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'';
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# pmount is append to the PATH because pmounts binaries should have a set uid bit.
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postInstall = ''
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mv $out/usr/* $out/. # fix color */
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rm -rf $out/usr
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for prog in $out/bin/pamusb-conf $out/bin/pamusb-agent; do
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substituteInPlace $prog --replace '/usr/bin/env python' '/bin/python'
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wrapProgram $prog \
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--prefix PYTHONPATH : "$(toPythonPath ${dbus-python})"
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done
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'';
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meta = {
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homepage = http://pamusb.org/;
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description = "Authentication using USB Flash Drives";
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license = stdenv.lib.licenses.gpl2;
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platforms = stdenv.lib.platforms.linux;
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};
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}
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