forked from mirrors/nixpkgs
35e0eea053
Fixes issue #21136. The problem is that the seccomp system call filter configured by ntpd did not include some system calls that were apparently needed. For example the program hanged in getpid just after the filter was installed: prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0) = 0 seccomp(SECCOMP_SET_MODE_STRICT, 1, NULL) = -1 EINVAL (Invalid argument) seccomp(SECCOMP_SET_MODE_FILTER, 0, {len=41, filter=0x5620d7f0bd90}) = 0 getpid() = ? I do not know exactly why this is a problem on NixOS only, perhaps we have getpid caching disabled. The fcntl and setsockopt system calls also had to be added.
46 lines
1.3 KiB
Nix
46 lines
1.3 KiB
Nix
{ stdenv, lib, fetchurl, openssl, perl, libcap ? null, libseccomp ? null }:
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assert stdenv.isLinux -> libcap != null;
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assert stdenv.isLinux -> libseccomp != null;
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let
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withSeccomp = stdenv.isLinux && (stdenv.isi686 || stdenv.isx86_64);
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in
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stdenv.mkDerivation rec {
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name = "ntp-4.2.8p9";
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src = fetchurl {
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url = "http://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-4.2/${name}.tar.gz";
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sha256 = "0whbyf82lrczbri4adbsa4hg1ppfa6c7qcj7nhjwdfp1g1vjh95p";
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};
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# The hardcoded list of allowed system calls for seccomp is
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# insufficient for NixOS, add more to make it work (issue #21136).
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patches = [ ./seccomp.patch ];
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configureFlags = [
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"--sysconfdir=/etc"
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"--localstatedir=/var"
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"--with-openssl-libdir=${openssl.out}/lib"
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"--with-openssl-incdir=${openssl.dev}/include"
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"--enable-ignore-dns-errors"
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] ++ stdenv.lib.optional stdenv.isLinux "--enable-linuxcaps"
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++ stdenv.lib.optional withSeccomp "--enable-libseccomp";
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buildInputs = [ libcap openssl perl ] ++ lib.optional withSeccomp libseccomp;
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hardeningEnable = [ "pie" ];
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postInstall = ''
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rm -rf $out/share/doc
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'';
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meta = {
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homepage = http://www.ntp.org/;
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description = "An implementation of the Network Time Protocol";
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maintainers = [ stdenv.lib.maintainers.eelco ];
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platforms = stdenv.lib.platforms.linux;
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};
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}
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