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nixpkgs/pkgs/tools/networking/dhcp/default.nix
Eelco Dolstra 0a7708ff56 * dhcp: don't bring down an interface to delete old addresses / route
/ ARP cache information, but just flush those using the ip command.
  Bringing down wireless interfaces causes wpa_supplicant to fail and
  never recover ("wpa_supplicant: l2_packet_receive - recvfrom:
  Network is down").  This made associating with a wireless network
  rather unreliable and timing-dependant.  It seems to work a lot
  better now.

svn path=/nixpkgs/trunk/; revision=17514
2009-09-29 16:14:33 +00:00

54 lines
1.7 KiB
Nix

{ stdenv, fetchurl, nettools, iputils, iproute, makeWrapper }:
stdenv.mkDerivation rec {
name = "dhcp-4.1.0p1";
src = fetchurl {
url = "http://ftp.isc.org/isc/dhcp/${name}.tar.gz";
sha256 = "0il966bcls7nfd93qfqrgvd2apkm0kv7pk35lnl1nvbm7fyrik7z";
};
patches =
[ # Don't bring down interfaces, because wpa_supplicant doesn't
# recover when the wlan interface goes down. Instead just flush
# all addresses, routes and neighbours of the interface.
./flush-if.patch
];
# Fixes "socket.c:591: error: invalid application of 'sizeof' to
# incomplete type 'struct in6_pktinfo'". See
# http://www.mail-archive.com/blfs-book@linuxfromscratch.org/msg13013.html
NIX_CFLAGS_COMPILE = "-D_GNU_SOURCE";
buildInputs = [makeWrapper];
postInstall =
''
cp client/scripts/linux $out/sbin/dhclient-script
substituteInPlace $out/sbin/dhclient-script \
--replace /sbin/ip ${iproute}/sbin/ip
wrapProgram "$out/sbin/dhclient-script" --prefix PATH : \
"${nettools}/bin:${nettools}/sbin:${iputils}/bin:${stdenv.coreutils}/bin:${stdenv.gnused}/bin"
'';
preConfigure =
''
sed -i "includes/dhcpd.h" \
-"es|^ *#define \+_PATH_DHCLIENT_SCRIPT.*$|#define _PATH_DHCLIENT_SCRIPT \"$out/sbin/dhclient-script\"|g"
'';
meta = {
description = "Dynamic Host Configuration Protocol (DHCP) tools";
longDescription = ''
ISC's Dynamic Host Configuration Protocol (DHCP) distribution
provides a freely redistributable reference implementation of
all aspects of DHCP, through a suite of DHCP tools: server,
client, and relay agent.
'';
homepage = http://www.isc.org/products/DHCP/;
license = "http://www.isc.org/sw/dhcp/dhcp-copyright.php";
};
}