Add BIRD

config/bird/APKBUILD

@@ -0,0 +1,11 @@
+# Contributor: Alex Denes <caskd@redxen.eu>
+# Maintainer: Alex Denes <caskd@redxen.eu>
+_svcname=bird
+
+. ../APKBUILD-config.common
+
+pkgver=2021.05.12
+pkgrel=0
+source="redxen.conf"
+
+sha512sums="063c456c53d547ca5c96a2f89870e9e7e7569c04fad166fa9f3c7d589252cba1e3f801c14b367e106ee7b119bb3abb1d44c1059996d3704352023aefd4ed1184  redxen.conf"

config/bird/redxen.conf

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+# Configure logging
+log syslog all;
+# log "/var/log/bird.log" { debug, trace, info, remote, warning, error, auth, fatal, bug };
+
+# Turn on global debugging of all protocols (all messages or just selected classes)
+# debug protocols all;
+# debug protocols { events, states };
+
+# Turn on internal watchdog
+# watchdog warning 5 s;
+# watchdog timeout 30 s;
+
+filter crxn_filter
+{
+	if (net ~ fd8a:6111:3b1a::/48) then accept;
+	reject;
+}
+
+# The Device protocol is not a real routing protocol. It does not generate any
+# routes and it only serves as a module for getting information about network
+# interfaces from the kernel. It is necessary in almost any configuration.
+protocol device {
+}
+
+protocol direct {
+	ipv6;
+	interface "crxn*";
+}
+
+# The Kernel protocol is not a real routing protocol. Instead of communicating
+# with other routers in the network, it performs synchronization of BIRD
+# routing tables with the OS kernel. One instance per table.
+protocol kernel {
+	persist;
+	ipv6 {
+		import all;
+		export all;
+	};
+}
+
+protocol babel {
+	ipv6 {
+		import filter crxn_filter;
+		export all;
+	};
+	interface "crxn*" {
+		type wired;
+	};
+}

openrc/bird/APKBUILD

@@ -0,0 +1,12 @@
+# Contributor: Alex Denes <caskd@redxen.eu>
+# Maintainer: Alex Denes <caskd@redxen.eu>
+_svcname=bird
+_grpname=network
+
+. ../APKBUILD-openrc.common
+
+pkgver=2021.05.12
+pkgrel=1
+
+sha512sums="4f96de2677c1495af058e3ace9882c6b45437763a5aa22d57997a463fe5ba8be4f2e40234a86633555b665dccc3d897007aa5074b95e8ae954989d2ad8d970df  runfile
+e10326b72cf5fc4ff32b27b6524e1d56c5bf0410a6a4e321ffa6f155eac6645b22b37c1fd024ced631800d1a69d4fa9395f6534d55f111a0c4b5c85d5037b97b  conffile"

openrc/bird/conffile

@@ -0,0 +1 @@
+CONF_FILE="/etc/bird/redxen.conf"

openrc/bird/runfile

@@ -0,0 +1,61 @@
+#!/sbin/openrc-run
+# Copyright 1999-2019 Gentoo Authors
+# Copyright 2019 Alarig Le Lay <alarig@grifon.fr>
+# Distributed under the terms of the GNU General Public License v2
+
+extra_started_commands="reload"
+
+pidfile="/run/bird/${RC_SVCNAME}.pid"
+# See https://bird.network.cz/?get_doc&v=20&f=bird-1.html#ss1.4 for priveleges
+# requirements.
+command="/usr/sbin/bird"
+retry=15
+
+: ${CONF_FILE:="/etc/${RC_SVCNAME}.conf"}
+SOCK="/run/${RC_SVCNAME}.ctl"
+
+client_args="-s ${SOCK}"
+command_args="-u bird -g bird ${client_args} -R -c ${CONF_FILE} -P ${pidfile}"
+client_args="${client_args} -r"
+
+depend() {
+	need net
+	use logger
+	after firewall
+}
+
+start_pre() {
+	# Used to store bird's PID file, which iscreated after privilege drop.
+	checkpath --directory --owner bird:bird --mode 0775 /run/bird
+	# Ensure permissions on configuration file are correct for upgrades.
+	checkpath --file --owner root:bird --mode 0640 ${CONF_FILE}
+}
+
+check_run() {
+	BIRD_CHECK_CONF="birdc ${client_args} configure check \"${CONF_FILE}\""
+	# Check if the bird parser returns what we want
+	# We can’t use $? because it’s always 0 if the sock works
+	STATE=$(${BIRD_CHECK_CONF} | grep 'Configuration OK')
+
+	if [ -n "${STATE}" ]; then
+		return 0
+	else
+		# We remove the first three lines (garbage informations), the
+		# errors begin after that
+		eerror "$(${BIRD_CHECK_CONF} | sed '1,3d')"
+		return 1
+	fi
+}
+
+reload() {
+	check_run || return 1
+	ebegin "Reloading BIRD"
+	start-stop-daemon --signal HUP --pidfile "${pidfile}"
+	eend $?
+}
+
+stop_pre() {
+	if [ "${RC_CMD}" = "restart" ] ; then
+		check_run || return 1
+	fi
+}