jool: Add initial recipes for jool NAT64 user-space tools and kernel modules

The jool project contains three different types of outputs. User-space
tools, iptables plugins and kernel modules. The first two are handled by
the main jool recipe while the later one is handled by jool-kmod.

The git tag for version 4.1.5 is used.

Signed-off-by: Stefan Schmidt <stefan.schmidt@huawei.com>

meta-ohos-staging/recipes-connectivity/jool/jool-kmod_git.bb

+# SPDX-FileCopyrightText: Huawei Inc.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+include jool.inc
+
+DESCRIPTION = "Jool SIIT and NAT64 kernel modules for Linux."
+
+LIC_FILES_CHKSUM = "file://../../COPYING;md5=b234ee4d69f5fce4486a80fdaf4a4263"
+
+S = "${WORKDIR}/git/src/mod/"
+
+DEPENDS = "virtual/kernel"
+
+inherit module
+
+EXTRA_OEMAKE += "KERNEL_DIR=${STAGING_KERNEL_DIR} \
+                 KERNEL_PATH=${STAGING_KERNEL_DIR} \
+                 KERNEL_VERSION=${KERNEL_VERSION} \
+                 CC="${KERNEL_CC}" LD="${KERNEL_LD}" \
+                 AR="${KERNEL_AR}" \
+                 O=${STAGING_KERNEL_BUILDDIR} \
+                 KBUILD_EXTRA_SYMBOLS="${B}/common/Module.symvers" \
+                 "
+
+MODULES_MODULE_SYMVERS_LOCATION="common/Module.symvers"
+
+module_do_compile () {
+        unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS
+        # There is a race exposed in parallel build if the common module is not
+        # build first. It provides the Module.symvers file which the siit and
+        # nat64 modules depend on. Which means we run this first to build the
+        # dependency and the rest with the second command.
+        oe_runmake -C common
+        oe_runmake ${MAKE_TARGETS}
+}

meta-ohos-staging/recipes-connectivity/jool/jool.inc

+# SPDX-FileCopyrightText: Huawei Inc.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+SECTION = "networking"
+LICENSE = "GPLv2"
+
+# This SRCREV is the 4.1.5 git tag revision
+SRCREV = "34ffbf56a0c8bd53c4cb554e102a9084b301170e"
+SRC_URI = "git://github.com/NICMx/Jool.git"

meta-ohos-staging/recipes-connectivity/jool/jool/0001-Build-system-changes-to-be-handled-by-yocto-recipe.patch

+From 0667a0934bafb626d3abd7c5eebdc93b287e47bc Mon Sep 17 00:00:00 2001
+From: Stefan Schmidt <stefan.schmidt@huawei.com>
+Date: Thu, 8 Jul 2021 15:24:02 +0200
+Subject: [PATCH] Build system changes to be handled by yocto recipe
+
+Leave iptables subdir out do be handled manually as it is not integrated
+in autotools.
+
+Upstream-Status: Inappropriate [other]
+
+Signed-off-by: Stefan Schmidt <stefan.schmidt@huawei.com>
+---
+ src/usr/Makefile.am     | 3 ++-
+ 1 files changed, 2 insertions(+), 1 deletions(-)
+
+diff --git a/src/usr/Makefile.am b/src/usr/Makefile.am
+index 7f4758ce..f6b1cdf0 100644
+--- a/src/usr/Makefile.am
++++ b/src/usr/Makefile.am
+@@ -1 +1,1 @@
+-SUBDIRS = util nl argp siit nat64 iptables joold
++SUBDIRS = util nl argp siit nat64 joold

meta-ohos-staging/recipes-connectivity/jool/jool_git.bb

+# SPDX-FileCopyrightText: Huawei Inc.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+include jool.inc
+
+DESCRIPTION = "Jool is an Open Source SIIT and NAT64 for Linux."
+
+LIC_FILES_CHKSUM = "file://COPYING;md5=b234ee4d69f5fce4486a80fdaf4a4263"
+
+SRC_URI += "file://0001-Build-system-changes-to-be-handled-by-yocto-recipe.patch"
+
+S = "${WORKDIR}/git"
+
+DEPENDS = "libnl iptables"
+DEPENDS_append_libc-musl = " argp-standalone"
+
+inherit pkgconfig autotools
+
+CFLAGS += "-I${STAGING_INCDIR}"
+LDFLAGS += "-L${STAGING_LIBDIR}"
+
+do_compile_append () {
+        oe_runmake -C ${S}/src/usr/iptables/
+}
+
+do_install_append () {
+	install -d ${D}/${libdir}/xtables
+        install ${S}/src/usr/iptables/*.so ${D}/${libdir}/xtables
+}
+
+FILES_${PN} += "${datadir}/bash-completion"
+FILES_${PN} += "${libdir}/xtables/*.so"