EAPI="2"

inherit linux-info linux-mod autotools eutils

SLOT="0"
KEYWORDS="~amd64"
IUSE="ovsdmonitor"
LICENSE="Apache-2.0"

DESCRIPTION=""
HOMEPAGE="http://openvswitch.org/"
SRC_URI="http://openvswitch.org/releases/${P}.tar.gz"

CONFIG_CHECK="~NET_CLS_ACT ~NET_CLS_U32 ~NET_SCH_INGRESS ~NET_ACT_POLICE ~IPV6 ~TUN"

BUILD_TARGETS="all"
BUILD_TARGET_ARCH="${ARCH}"
MODULE_NAMES="openvswitch_mod(misc:${S}:datapath/linux/)"

DEPEND=""
RDEPEND="dev-libs/openssl
	ovsdmonitor? (
		>=dev-lang/python-2.4
		dev-python/twisted-conch
		dev-python/simplejson
		|| ( dev-python/pyside dev-python/PyQt4 )
		net-zope/zope-interface
	)
	"
# no idea how to realize the tcpdump patching
#	tcpdump? ( net-analyzer/tcpdump )

src_prepare() {
	set_arch_to_kernel
	if linux_chkconfig_present OPENVSWITCH; then
		elog "Openvswitch kernel support detected, omitting module build."
	else
		elog "No openvswitch kernel support detected, building it."
		elog "If you use kernel 3.3 or newer you may consider using the included openvswitch support instead."
	fi
	eautoreconf
}

src_configure() {
	set_arch_to_kernel
	if linux_chkconfig_present OPENVSWITCH; then
		econf
	else
		econf --with-linux="${KERNEL_DIR}"
	fi
}

pkg_setup() {
	if ! linux_chkconfig_present OPENVSWITCH; then
		linux-mod_pkg_setup
		linux_chkconfig_module BRIDGE || die "CONFIG_BRIDGE must be built as a _module_ !"
		BUILD_PARAMS="KERN_DIR=${KV_DIR} KERNOUT=${KV_OUT_DIR}"
	fi
}

src_install() {
	if ! linux_chkconfig_present OPENVSWITCH; then
		linux-mod_src_install
	fi
	emake DESTDIR="${D}" install || die 'emake install failed'
	newconfd "${FILESDIR}"/ovsdb-server_conf ovsdb-server || die "install failed"
	newconfd "${FILESDIR}"/ovs-vswitchd_conf ovs-vswitchd || die "install failed"
	doinitd "${FILESDIR}"/ovsdb-server || die "install failed"
	doinitd "${FILESDIR}"/ovs-vswitchd || die "install failed"
}

pkg_postinst() {
	if ! linux_chkconfig_present OPENVSWITCH; then
		linux-mod_pkg_postinst
	fi
	elog "Please add your openvswitch datapath module to:"
	if has_version sys-apps/openrc; then
		elog "/etc/conf.d/modules"
	else
		elog "/etc/modules.autoload.d/kernel-${KV_MAJOR}.${KV_MINOR}"
	fi
}