sys-fs/loop-aes: Add support for AES-NI wrt bug 362357.

(Portage version: 2.2.0_alpha38/cvs/Linux x86_64)

3 files changed, 83 insertions, 1 deletions

diff --git a/sys-fs/loop-aes/ChangeLog b/sys-fs/loop-aes/ChangeLog
index 0e24401c853a..72bad92a44a8 100644
--- a/sys-fs/loop-aes/ChangeLog
+++ b/sys-fs/loop-aes/ChangeLog
@@ -1,6 +1,13 @@
 # ChangeLog for sys-fs/loop-aes
 # Copyright 1999-2011 Gentoo Foundation; Distributed under the GPL v2
-# $Header: /var/cvsroot/gentoo-x86/sys-fs/loop-aes/ChangeLog,v 1.77 2011/06/02 14:12:26 maekke Exp $
+# $Header: /var/cvsroot/gentoo-x86/sys-fs/loop-aes/ChangeLog,v 1.78 2011/06/08 13:13:16 c1pher Exp $
+
+*loop-aes-3.6b-r1 (08 Jun 2011)
+
+  08 Jun 2011; Dane Smith <c1pher@gentoo.org> +loop-aes-3.6b-r1.ebuild,
+  metadata.xml:
+  Revision bump. Add support for AES-NI via new use flag aes-ni. Closes bug
+  362357.
 
   02 Jun 2011; Markus Meier <maekke@gentoo.org> loop-aes-3.6b.ebuild:
   arm stable, bug #364407
diff --git a/sys-fs/loop-aes/loop-aes-3.6b-r1.ebuild b/sys-fs/loop-aes/loop-aes-3.6b-r1.ebuild
new file mode 100644
index 000000000000..c7b629a1f0e3
--- /dev/null
+++ b/sys-fs/loop-aes/loop-aes-3.6b-r1.ebuild
@@ -0,0 +1,73 @@
+# Copyright 1999-2011 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/sys-fs/loop-aes/loop-aes-3.6b-r1.ebuild,v 1.1 2011/06/08 13:13:16 c1pher Exp $
+
+EAPI="3"
+
+inherit linux-mod
+
+MY_P="${PN/aes/AES}-v${PV}"
+
+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="mirror://sourceforge/${PN}/${MY_P}.tar.bz2"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~hppa ~ppc ~sparc ~x86"
+IUSE="aes-ni extra-ciphers keyscrub padlock"
+
+DEPEND="|| ( >=sys-apps/util-linux-2.12r[crypt] >=sys-apps/util-linux-2.12r[loop-aes] )"
+RDEPEND="${DEPEND}"
+
+S="${WORKDIR}/${MY_P}"
+
+pkg_setup() {
+	linux-mod_pkg_setup
+
+	CONFIG_CHECK="!BLK_DEV_LOOP"
+	MODULE_NAMES="loop(block::tmp-d-kbuild)"
+	BUILD_TARGETS="all"
+
+	BUILD_PARAMS=" \
+		LINUX_SOURCE=\"${KERNEL_DIR}\" \
+		KBUILD_OUTPUT=\"${KBUILD_OUTPUT}\" \
+		USE_KBUILD=y MODINST=n RUNDM=n"
+	use aes-ni && BUILD_PARAMS="${BUILD_PARAMS} INTELAES=y"
+	use keyscrub && BUILD_PARAMS="${BUILD_PARAMS} KEYSCRUB=y"
+	use padlock && BUILD_PARAMS="${BUILD_PARAMS} PADLOCK=y"
+
+	if use extra-ciphers; then
+		MODULE_NAMES="${MODULE_NAMES}
+			loop_blowfish(block::tmp-d-kbuild)
+			loop_serpent(block::tmp-d-kbuild)
+			loop_twofish(block::tmp-d-kbuild)"
+		BUILD_PARAMS="${BUILD_PARAMS} EXTRA_CIPHERS=y"
+	fi
+}
+
+src_prepare() {
+	sed -e 's/make/$(MAKE)/g' -i Makefile || die "sed failed"
+}
+
+src_install() {
+	linux-mod_src_install
+
+	dodoc README || die "dodoc failed"
+	dobin loop-aes-keygen || die "dobin failed"
+	doman loop-aes-keygen.1 || die "doman failed"
+}
+
+pkg_postinst() {
+	linux-mod_pkg_postinst
+
+	einfo
+	einfo "For more instructions take a look at examples in README at:"
+	einfo "'${EPREFIX}/usr/share/doc/${PF}'"
+	einfo
+	einfo "If you have a newer Intel processor (i5, i7), and you use AES"
+	einfo "you may want to consider using the aes-ni use flag. It will"
+	einfo "use your processors native AES instructions giving quite a speed"
+	einfo "increase."
+	einfo
+}
diff --git a/sys-fs/loop-aes/metadata.xml b/sys-fs/loop-aes/metadata.xml
index 11fbfdd1e2db..57d37123fd8d 100644
--- a/sys-fs/loop-aes/metadata.xml
+++ b/sys-fs/loop-aes/metadata.xml
@@ -3,6 +3,8 @@
 <pkgmetadata>
 	<herd>crypto</herd>
 	<use>
+		<flag name='aes-ni'>Enable support for Intel's AES instruction
+			set</flag>
 		<flag name='extra-ciphers'>Enable extra ciphers</flag>
 		<flag name='keyscrub'>Protects the encryption key in memory but takes
 			more cpu resources</flag>