initial buildroot for linux 5.15

package/openntpd/Config.in

@@ -0,0 +1,20 @@
+config BR2_PACKAGE_OPENNTPD
+	bool "openntpd"
+	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL
+	depends on BR2_USE_MMU # fork ()
+	depends on !BR2_PACKAGE_NTP # conflicting binaries
+	help
+	  OpenNTPD is an easy to use implementation of the Network Time
+	  Protocol. It provides the ability to sync the local clock
+	  to remote NTP servers and can act as NTP server itself,
+	  redistributing the local clock. It just works.
+
+	  Crypto support is available if the LibreSSL library is
+	  enabled.
+
+	  http://www.openntpd.org/
+
+comment "openntpd needs a toolchain w/ NPTL"
+	depends on BR2_USE_MMU
+	depends on !BR2_PACKAGE_NTP
+	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL

package/openntpd/S49ntp

@@ -0,0 +1,24 @@
+#!/bin/sh
+
+[ -f /etc/ntpd.conf ] || exit 0
+
+case "$1" in
+	start)
+		printf "Starting openntpd: "
+		start-stop-daemon -S -x /usr/sbin/ntpd -- -s -p /run/ntpd.pid
+		[ $? = 0 ] && echo "OK" || echo "FAIL"
+		;;
+	stop)
+		printf "Stopping openntpd: "
+		start-stop-daemon -K -q -p /run/ntpd.pid
+		[ $? = 0 ] && echo "OK" || echo "FAIL"
+		;;
+	restart)
+		"$0" stop
+		sleep 1
+		"$0" start
+		;;
+	*)
+		echo "Usage: $0 {start|stop|restart}"
+		;;
+esac

package/openntpd/ntpd.service

@@ -0,0 +1,15 @@
+[Unit]
+Description=OpenNTP Daemon
+After=network.target
+Conflicts=systemd-timesyncd.service
+
+[Service]
+Type=simple
+# Turn off DNSSEC validation for hostname look-ups, since those need the
+# correct time to work, but we likely won't acquire that without NTP. Let's
+# break this chicken-and-egg cycle here.
+Environment=SYSTEMD_NSS_RESOLVE_VALIDATE=0
+ExecStart=/usr/sbin/ntpd -s -d
+
+[Install]
+WantedBy=multi-user.target

package/openntpd/openntpd.hash

@@ -0,0 +1,5 @@
+# from http://ftp.openbsd.org/pub/OpenBSD/OpenNTPD/SHA256
+sha256  8582db838a399153d4a17f2a76518b638cc3020f58028575bf54127518f55a46  openntpd-6.8p1.tar.gz
+
+# Locally computed
+sha256  6c1822ee950652c12bb3773849db18794f62c63452a70d018edf23e8cba71839  COPYING

package/openntpd/openntpd.mk

@@ -0,0 +1,40 @@
+################################################################################
+#
+# openntpd
+#
+################################################################################
+
+OPENNTPD_VERSION = 6.8p1
+OPENNTPD_SITE = http://ftp.openbsd.org/pub/OpenBSD/OpenNTPD
+OPENNTPD_LICENSE = MIT-like, BSD-2-Clause, BSD-3-Clause
+OPENNTPD_LICENSE_FILES = COPYING
+OPENNTPD_CPE_ID_VENDOR = openntpd
+OPENNTPD_DEPENDENCIES = host-bison
+# Need to autoreconf for our libtool patch to apply properly
+OPENNTPD_AUTORECONF = YES
+
+# Openntpd searches for tls_config_set_ca_mem which is only available
+# in LibreSSL
+ifeq ($(BR2_PACKAGE_LIBRESSL),y)
+OPENNTPD_DEPENDENCIES += openssl
+endif
+
+# openntpd uses pthread functions for arc4random emulation but forgets
+# to use -pthread
+OPENNTPD_CONF_ENV += CFLAGS="$(TARGET_CFLAGS) -pthread"
+
+define OPENNTPD_INSTALL_INIT_SYSTEMD
+	$(INSTALL) -D -m 0644 package/openntpd/ntpd.service \
+		$(TARGET_DIR)/usr/lib/systemd/system/ntpd.service
+endef
+
+define OPENNTPD_INSTALL_INIT_SYSV
+	$(INSTALL) -m 0755 -D package/openntpd/S49ntp \
+		$(TARGET_DIR)/etc/init.d/S49ntp
+endef
+
+define OPENNTPD_USERS
+	_ntp -1 _ntp -1 * - - - Network Time Protocol daemon
+endef
+
+$(eval $(autotools-package))