[patch] Updates /etc/init.d/nftables to use the new nftables.sh shell script

0002-Update-nftables.init-to-use-nftables.sh.patch (text/plain), 3.76 KB, created by nvinson234 on 2015-11-03 04:04:59 UTC

From 0ec7d6a6d22ea93c14bebd69df4e4544a2942d45 Mon Sep 17 00:00:00 2001
From: Nicholas Vinson <[e-mail]>
Date: Mon, 2 Nov 2015 22:54:02 -0500
Subject: [PATCH 2/4] Update nftables.init to use nftables.sh

Signed-off-by: Nicholas Vinson <[e-mail]>
---
 net-firewall/nftables/files/nftables.init-r2 | 123 +++++++++++++++++++++++++++
 1 file changed, 123 insertions(+)
 create mode 100644 net-firewall/nftables/files/nftables.init-r2

diff --git net-firewall/nftables/files/nftables.init-r2 net-firewall/nftables/files/nftables.init-r2
new file mode 100644
index 0000000..c86d2e3
--- /dev/null
+++ net-firewall/nftables/files/nftables.init-r2
@@ -0,0 +1,123 @@
+#!/sbin/runscript
+# Copyright 2014 Nicholas Vinson
+# Copyright 1999-2014 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+extra_commands="clear list panic save"
+extra_started_commands="reload"
+depend() {
+    need localmount #434774
+    before net
+}
+
+start_pre() {
+    checkkernel || return 1
+    checkconfig || return 1
+    return 0
+}
+
+clear() {
+    /usr/libexec/nftables/nftables.sh clear || return 1
+    return 0
+}
+
+list() {
+    /usr/libexec/nftables/nftables.sh list || return 1
+    return 0
+}
+
+panic() {
+    checkkernel || return 1
+    if service_started ${RC_SVCNAME}; then
+        rc-service ${RC_SVCNAME} stop
+    fi
+
+    ebegin "Dropping all packets"
+    clear
+    if nft create table ip filter >/dev/null 2>&1; then
+	nft -f /dev/stdin <<-EOF
+	    table ip filter {
+	                    chain input {
+	                                    type filter hook input priority 0;
+	                                    drop
+	                    }
+	                    chain forward {
+	                                    type filter hook forward priority 0;
+	                                    drop
+	                    }
+	                    chain output {
+	                                    type filter hook output priority 0;
+	                                    drop
+	                    }
+	    }
+	EOF
+    fi
+    if nft create table ip6 filter >/dev/null 2>&1; then
+	nft -f /dev/stdin <<-EOF
+	    table ip6 filter {
+	                    chain input {
+	                                    type filter hook input priority 0;
+	                                    drop
+	                    }
+	                    chain forward {
+	                                    type filter hook forward priority 0;
+	                                    drop
+	                    }
+	                    chain output {
+	                                    type filter hook output priority 0;
+	                                    drop
+	                    }
+	    }
+	EOF
+    fi
+}
+
+reload() {
+    checkkernel || return 1
+    ebegin "Flushing firewall"
+    clear
+    start
+}
+
+save() {
+    ebegin "Saving nftables state"
+    checkpath -q -d "$(dirname "${NFTABLES_SAVE}")"
+    checkpath -q -m 0600 -f "${NFTABLES_SAVE}"
+    /usr/libexec/nftables/nftables.sh store ${NFTABLES_SAVE}
+    return $?
+}
+
+start() {
+    ebegin "Loading nftables state and starting firewall"
+    clear
+    /usr/libexec/nftables/nftables.sh load ${NFTABLES_SAVE}
+    eend $?
+}
+
+stop() {
+    if yesno ${SAVE_ON_STOP:-yes}; then
+        save || return 1
+    fi
+
+    ebegin "Stopping firewall"
+    clear
+    eend $?
+}
+
+checkconfig() {
+    if [ ! -f ${NFTABLES_SAVE} ]; then
+        eerror "Not starting nftables.  First create some rules then run:"
+        eerror "rc-service nftables save"
+        return 1
+    fi
+    return 0
+}
+
+checkkernel() {
+    if ! nft list tables >/dev/null 2>&1; then
+        eerror "Your kernel lacks nftables support, please load"
+        eerror "appropriate modules and try again."
+        return 1
+    fi
+    return 0
+}
-- 
2.6.2