[oe-commits] [openembedded-core] 10/30: iptables: add systemd helper unit to load/restore rules
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git at git.openembedded.org
Mon Sep 16 08:54:58 UTC 2019
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rpurdie pushed a commit to branch master-next
in repository openembedded-core.
commit 76d3574d17c38d93ba4660bdae5730ac222994d4
Author: Jack Mitchell <jack at embed.me.uk>
AuthorDate: Thu Sep 5 09:35:37 2019 +0000
iptables: add systemd helper unit to load/restore rules
There is currently no way to automatically load iptables rules in OE.
Add a systemd unit file to automatically load rules on network
connection. This is cribbed from the way ArchLinux handles iptables with
some minor modifications for OE.
New rules can be generated directly on the target using:
# iptables-save -f /etc/iptables/iptables.rules
Good documentation for writing rules offline is lacking, but the basics
are explained here:
https://unix.stackexchange.com/q/400163/49405
Signed-off-by: Jack Mitchell <jack at embed.me.uk>
Signed-off-by: Diego Rondini <diego.rondini at kynetics.com>
Signed-off-by: Ross Burton <ross.burton at intel.com>
---
meta/recipes-extended/iptables/iptables/iptables.rules | 0
.../recipes-extended/iptables/iptables/iptables.service | 13 +++++++++++++
meta/recipes-extended/iptables/iptables_1.8.3.bb | 17 ++++++++++++++++-
3 files changed, 29 insertions(+), 1 deletion(-)
diff --git a/meta/recipes-extended/iptables/iptables/iptables.rules b/meta/recipes-extended/iptables/iptables/iptables.rules
new file mode 100644
index 0000000..e69de29
diff --git a/meta/recipes-extended/iptables/iptables/iptables.service b/meta/recipes-extended/iptables/iptables/iptables.service
new file mode 100644
index 0000000..041316e
--- /dev/null
+++ b/meta/recipes-extended/iptables/iptables/iptables.service
@@ -0,0 +1,13 @@
+[Unit]
+Description=Packet Filtering Framework
+Before=network-pre.target
+Wants=network-pre.target
+
+[Service]
+Type=oneshot
+ExecStart=@SBINDIR@/iptables-restore /etc/iptables/iptables.rules
+ExecReload=@SBINDIR@/iptables-restore /etc/iptables/iptables.rules
+RemainAfterExit=yes
+
+[Install]
+WantedBy=multi-user.target
diff --git a/meta/recipes-extended/iptables/iptables_1.8.3.bb b/meta/recipes-extended/iptables/iptables_1.8.3.bb
index 6ac3fc6..ff9fcb1 100644
--- a/meta/recipes-extended/iptables/iptables_1.8.3.bb
+++ b/meta/recipes-extended/iptables/iptables_1.8.3.bb
@@ -10,12 +10,14 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=b234ee4d69f5fce4486a80fdaf4a4263\
SRC_URI = "http://netfilter.org/projects/iptables/files/iptables-${PV}.tar.bz2 \
file://0001-configure-Add-option-to-enable-disable-libnfnetlink.patch \
file://0002-configure.ac-only-check-conntrack-when-libnfnetlink-enabled.patch \
+ file://iptables.service \
+ file://iptables.rules \
"
SRC_URI[md5sum] = "29de711d15c040c402cf3038c69ff513"
SRC_URI[sha256sum] = "a23cac034181206b4545f4e7e730e76e08b5f3dd78771ba9645a6756de9cdd80"
-inherit autotools pkgconfig
+inherit autotools pkgconfig systemd
EXTRA_OECONF = "--with-kernel=${STAGING_INCDIR}"
@@ -56,6 +58,19 @@ INSANE_SKIP_${PN}-module-xt-ct = "dev-so"
ALLOW_EMPTY_${PN}-modules = "1"
+do_install_append() {
+
+ install -d ${D}${sysconfdir}/iptables
+ install -m 0644 ${WORKDIR}/iptables.rules ${D}${sysconfdir}/iptables
+
+ install -d ${D}${systemd_system_unitdir}
+ install -m 0644 ${WORKDIR}/iptables.service ${D}${systemd_system_unitdir}
+
+ sed -i -e 's, at SBINDIR@,${sbindir},g' ${D}${systemd_system_unitdir}/iptables.service
+}
+
+SYSTEMD_SERVICE_${PN} = "iptables.service"
+
RDEPENDS_${PN} = "${PN}-module-xt-standard"
RRECOMMENDS_${PN} = " \
${PN}-modules \
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