[Buildroot] [git commit] package/iptables: add init script

[Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>]

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commit: https://git.buildroot.net/buildroot/commit/?id=4906e77d5957a78df3181a0c8a1b5f0e55ce44da
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master

This patch will add an init script that allows
to set a ruleset in /etc/iptables.conf to be loaded
on boot, or flushed on stop, as well as a saving
command to generate a new file.

Signed-off-by: José Pekkarinen <jose.pekkarinen@unikie.com>
[Arnout: change handling of readonly filesystem]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
---
 package/iptables/S35iptables | 58 ++++++++++++++++++++++++++++++++++++++++++++
 package/iptables/iptables.mk |  6 +++++
 2 files changed, 64 insertions(+)

diff --git a/package/iptables/S35iptables b/package/iptables/S35iptables
new file mode 100644
index 0000000000..ff3f51a2ba
--- /dev/null
+++ b/package/iptables/S35iptables
@@ -0,0 +1,58 @@
+#!/bin/sh
+
+DAEMON="iptables"
+
+IPTABLES_ARGS=""
+
+start() {
+	printf 'Starting %s: ' "$DAEMON"
+	iptables-restore < /etc/iptables.conf
+	status=$?
+	if [ "$status" -eq 0 ]; then
+		echo "OK"
+	else
+		echo "FAIL"
+	fi
+	return "$status"
+}
+
+stop() {
+	printf 'Stopping %s: ' "$DAEMON"
+	iptables -F
+	status=$?
+	if [ "$status" -eq 0 ]; then
+		echo "OK"
+	else
+		echo "FAIL"
+	fi
+	return "$status"
+}
+
+restart() {
+	stop
+	sleep 1
+	start
+}
+
+save() {
+	printf 'Saving %s: ' "$DAEMON"
+	iptables-save > /etc/iptables.conf
+	status=$?
+	if [ "$status" -eq 0 ]; then
+		echo "OK"
+	else
+		echo "SKIP (read-only file system detected)"
+	fi
+	return "$status"
+}
+
+case "$1" in
+	start|stop|restart|save)
+		"$1";;
+	reload)
+		# Restart, since there is no true "reload" feature.
+		restart;;
+	*)
+		echo "Usage: $0 {start|stop|restart|reload}"
+		exit 1
+esac
diff --git a/package/iptables/iptables.mk b/package/iptables/iptables.mk
index ca8178425e..555bb384fd 100644
--- a/package/iptables/iptables.mk
+++ b/package/iptables/iptables.mk
@@ -57,4 +57,10 @@ define IPTABLES_LINUX_CONFIG_FIXUPS
 	$(call KCONFIG_ENABLE_OPT,CONFIG_NETFILTER_XTABLES)
 endef
 
+define IPTABLES_INSTALL_INIT_SYSV
+	$(INSTALL) -m 0755 -D package/iptables/S35iptables \
+		$(TARGET_DIR)/etc/init.d/S35iptables
+	touch $(TARGET_DIR)/etc/iptables.conf
+endef
+
 $(eval $(autotools-package))

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