inherit eutils kernel-mod

DESCRIPTION="Linux kernel module to encrypt local file systems and disk partitions with AES cipher."
HOMEPAGE="http://loop-aes.sourceforge.net/loop-AES.README"
SRC_URI="http://loop-aes.sourceforge.net/loop-AES/${PN/aes/AES}-v${PV}.tar.bz2"

LICENSE="GPL-2"
SLOT="0"
KEYWORDS="~x86 ~ppc ~sparc ~amd64 ~ppc64 ~alpha"

DEPEND=""
RDEPEND=""

S="${WORKDIR}/${PN/aes/AES}-v${PV}"


pkg_setup() {

	kernel-mod_getversion
	kernel-mod_check_modules_supported

	if kernel-mod_configoption_present BLK_DEV_LOOP
	then
		eerror ""
		eerror "${PN} requires Loopback device support (CONFIG_BLK_DEV_LOOP)"
		eerror "to be disabled in the kernel to avoid conflicting modules."
		eerror ""
		die
	fi


	if ! kernel-mod_configoption_present KMOD && \
	   ! kernel-mod_configoption_present KERNELD
	then
		ewarn ""
		ewarn "It is recommended to have Automatic kernel module loading"
		ewarn "(CONFIG_KERNELD in kernels 2.0 or CONFIG_KMOD in newer)"
		ewarn ""
	fi
	   
}

src_unpack () {
	unpack ${A}

	kernel-mod_getversion

	if [ ${KV_MINOR} -ge 6 ] && [ ${KV_PATCH} -ge 6 ]; then
		sed -i 's:SUBDIRS=:M=:g' ${S}/Makefile
	fi
}

src_compile() {
	set_arch_to_kernel

	emake LINUX_SOURCE=${KERNEL_DIR} MODINST=n RUNDM=n || die
}

src_install() {
	dodoc README
	insinto ${ROOT}/lib/modules/${KV}/block
	if [ ${KV_MINOR} -ge 6 ]; then
		doins loop.ko
	else
		doins loop.o
	fi
}

pkg_postinst() {
	einfo "Checking kernel module dependencies"
	test -r "${ROOT}/usr/src/linux/System.map" && \
		depmod -ae -F "${ROOT}/usr/src/linux/System.map" -b "${ROOT}" -r ${KV}
	ewarn ""
	ewarn "Note, that you will need util-linux compiled with loop-aes"
	ewarn "in USE flag enabled in order to use this module."
	ewarn ""
	einfo "For more instructions take a look at examples in"
	einfo "/usr/share/doc/${PF}/README.gz"
	einfo ""

}