initial buildroot for linux 5.15

package/radvd/50-radvd.preset

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+disable radvd.service

package/radvd/Config.in

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+config BR2_PACKAGE_RADVD
+	bool "radvd"
+	depends on BR2_USE_MMU # fork()
+	help
+	  IPv6 Router Advertisement Daemon.
+
+	  On busybox and sysvinit systems, radvd will be started only if
+	  a /etc/radvd.conf exists.
+
+	  To enable it at build time with systemd, add /etc/radvd.conf
+	  and a /etc/systemd/system-preset/40-radvd.preset file with
+
+	    enable radvd.service
+
+	  http://www.litech.org/radvd/

package/radvd/S50radvd

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+#!/bin/sh
+
+DAEMON="radvd"
+PIDFILE="/var/run/$DAEMON.pid"
+
+RADVD_ARGS="-m syslog"
+
+# shellcheck source=/dev/null
+[ -r "/etc/default/$DAEMON" ] && . "/etc/default/$DAEMON"
+
+[ -f /etc/radvd.conf ] || exit 0
+
+[ -f /proc/sys/net/ipv6/conf/all/forwarding ] || {
+	echo "Error: radvd requires IPv6 forwarding support."
+	exit 1
+}
+
+start() {
+	printf 'Starting %s: ' "$DAEMON"
+	echo "1" > /proc/sys/net/ipv6/conf/all/forwarding
+	# shellcheck disable=SC2086 # we need the word splitting
+	start-stop-daemon -S -q -p "$PIDFILE" -x "/usr/sbin/$DAEMON" \
+		-- $RADVD_ARGS
+	status=$?
+	if [ "$status" -eq 0 ]; then
+		echo "OK"
+	else
+		echo "FAIL"
+	fi
+	return "$status"
+}
+
+stop() {
+	printf 'Stopping %s: ' "$DAEMON"
+	start-stop-daemon -K -q -p "$PIDFILE" -x "/usr/sbin/$DAEMON"
+	status=$?
+	if [ "$status" -eq 0 ]; then
+		echo "OK"
+	else
+		echo "FAIL"
+	fi
+	return "$status"
+}
+
+restart() {
+	stop
+	sleep 1
+	start
+}
+
+case "$1" in
+	start|stop)
+		"$1";;
+	restart|reload)
+		restart;;
+	*)
+		echo "Usage: $0 {start|stop|restart|reload}"
+		exit 1
+esac

package/radvd/radvd.hash

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+# From http://www.litech.org/radvd/dist/radvd-2.19.tar.gz.sha512
+sha512  caa621fd77e34ff6858d60a41b0ee02aff967ac14f2b84c402359744f4bece5c1563419860431c328adc0385e9893ed1f2421d652247a3aa0dfc0aaad1e01233  radvd-2.19.tar.gz
+sha256  40a6db00cf0b97f031eaa6c6e87157788f40ced1b88e3ea6d78779bd2a39dc80  COPYRIGHT

package/radvd/radvd.mk

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+################################################################################
+#
+# radvd
+#
+################################################################################
+
+RADVD_VERSION = 2.19
+RADVD_SITE = http://www.litech.org/radvd/dist
+RADVD_DEPENDENCIES = host-bison host-flex host-pkgconf
+# We need to ignore <linux/if_arp.h>, because radvd already includes
+# <net/if_arp.h>, which conflicts with <linux/if_arp.h>.
+RADVD_CONF_ENV = \
+	ac_cv_prog_cc_c99='-std=gnu99' \
+	ac_cv_header_linux_if_arp_h=no
+RADVD_LICENSE = BSD-4-Clause-like
+RADVD_LICENSE_FILES = COPYRIGHT
+RADVD_SELINUX_MODULES = radvd
+
+ifeq ($(BR2_TOOLCHAIN_HAS_SSP),y)
+RADVD_CONF_OPTS += --with-stack-protector
+else
+RADVD_CONF_OPTS += --without-stack-protector
+endif
+
+# We don't provide /etc/radvd.conf, so disable the service by default.
+define RADVD_INSTALL_INIT_SYSTEMD
+	$(INSTALL) -D -m 0644 package/radvd/50-radvd.preset \
+		$(TARGET_DIR)/usr/lib/systemd/system-preset/50-radvd.preset
+endef
+
+define RADVD_INSTALL_INIT_SYSV
+	$(INSTALL) -D -m 0755 package/radvd/S50radvd $(TARGET_DIR)/etc/init.d/S50radvd
+endef
+
+$(eval $(autotools-package))