meta-digi-del: add 'busybox-ntpd' package

Use busybox' ntpd applet as basic ntp client.

https://jira.digi.com/browse/DEL-144 #resolve

Signed-off-by: Javier Viguera <javier.viguera@digi.com>

meta-digi-del/recipes-core/busybox/busybox-1.20.2/0004-ntpd-indefinitely-try-to-resolve-peer-addresses.patch

@@ -0,0 +1,65 @@
+From: Jo-Philipp Wich <jow@openwrt.org>
+Date: Tue, 25 Sep 2012 14:06:13 +0200
+Subject: [PATCH] ntpd: indefinitely try to resolve peer addresses
+
+Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>
+(cherry picked from commit c5daea7ba5200158fae2e68714725c6bf7ee6dbb)
+
+Signed-off-by: Javier Viguera <javier.viguera@digi.com>
+
+Conflicts:
+	networking/ntpd.c
+---
+ networking/ntpd.c | 25 +++++++++++++++++++++++--
+ 1 file changed, 23 insertions(+), 2 deletions(-)
+
+diff --git a/networking/ntpd.c b/networking/ntpd.c
+index 34b649f..49fb58b 100644
+--- a/networking/ntpd.c
++++ b/networking/ntpd.c
+@@ -221,6 +221,7 @@ typedef struct {
+ typedef struct {
+ 	len_and_sockaddr *p_lsa;
+ 	char             *p_dotted;
++	char             *p_hostname;
+ 	/* when to send new query (if p_fd == -1)
+ 	 * or when receive times out (if p_fd >= 0): */
+ 	int              p_fd;
+@@ -708,8 +709,9 @@ add_peers(char *s)
+ 	peer_t *p;
+ 
+ 	p = xzalloc(sizeof(*p));
+-	p->p_lsa = xhost2sockaddr(s, 123);
+-	p->p_dotted = xmalloc_sockaddr2dotted_noport(&p->p_lsa->u.sa);
++	p->p_hostname = s;
++	p->p_lsa = NULL;
++	p->p_dotted = NULL;
+ 	p->p_fd = -1;
+ 	p->p_xmt_msg.m_status = MODE_CLIENT | (NTP_VERSION << 3);
+ 	p->next_action_time = G.cur_time; /* = set_next(p, 0); */
+@@ -758,6 +760,25 @@ send_query_to_peer(peer_t *p)
+ 	 *
+ 	 * Uncomment this and use strace to see it in action:
+ 	 */
++
++	/* See if the peer hostname already resolved yet, if not, retry to resolv and return on failure */
++	if (!p->p_lsa)
++	{
++		p->p_lsa = host2sockaddr(p->p_hostname, 123);
++
++		if (p->p_lsa)
++		{
++			p->p_dotted = xmalloc_sockaddr2dotted_noport(&p->p_lsa->u.sa);
++			VERB1 bb_error_msg("resolved peer %s to %s", p->p_hostname, p->p_dotted);
++		}
++		else
++		{
++			set_next(p, RETRY_INTERVAL);
++			VERB1 bb_error_msg("could not resolve peer %s, skipping", p->p_hostname);
++			return;
++		}
++	}
++
+ #define PROBE_LOCAL_ADDR /* { len_and_sockaddr lsa; lsa.len = LSA_SIZEOF_SA; getsockname(p->query.fd, &lsa.u.sa, &lsa.len); } */
+ 
+ 	if (p->p_fd == -1) {

meta-digi-del/recipes-core/busybox/busybox-1.20.2/busybox-ntpd

@@ -0,0 +1,54 @@
+#!/bin/sh
+#===============================================================================
+#
+#  busybox-ntpd
+#
+#  Copyright (C) 2013 by Digi International Inc.
+#  All rights reserved.
+#
+#  This program is free software; you can redistribute it and/or modify it
+#  under the terms of the GNU General Public License version 2 as published by
+#  the Free Software Foundation.
+#
+#  !Description: Busybox NTP bootscript
+#
+#===============================================================================
+
+set -e
+
+DAEMON="/usr/sbin/ntpd"
+NAME="ntpd"
+DESC="Busybox NTP client/server"
+ARGS="-n -p pool.ntp.org"
+
+[ -x "${DAEMON}" ] || exit 0
+
+case "$1" in
+	start)
+		echo -n "Starting $DESC: "
+		start-stop-daemon -S -b -n $NAME -a $DAEMON -- $ARGS
+		echo "done"
+		;;
+	stop)
+		echo -n "Stopping $DESC: "
+		start-stop-daemon -K -n $NAME
+		echo "done"
+		;;
+	restart)
+		echo -n "Restarting $DESC: "
+		$0 stop
+		$0 start
+		echo "done"
+		;;
+	reload)
+		echo -n "Reloading $DESC: "
+		killall -HUP $(basename ${DAEMON})
+		echo "done"
+		;;
+	*)
+		echo "Usage: $0 {start|stop|restart|reload}"
+		exit 1
+		;;
+esac
+
+exit 0

meta-digi-del/recipes-core/busybox/busybox_1.20.2.bbappend

@@ -6,11 +6,13 @@ DEPENDS += "libdigi"
 SRC_URI += "file://0001-del-baudrates.patch \
             file://0002-del-mdev_regulatory.patch \
             file://0003-del-flash_eraseall.patch \
+            file://0004-ntpd-indefinitely-try-to-resolve-peer-addresses.patch \
             file://adc \
             file://mmc \
             file://sd \
             file://ts \
             file://suspend \
+            file://busybox-ntpd \
            "
 
 # Add device handlers to 'mdev' package
@@ -19,6 +21,12 @@ FILES_${PN}-mdev += "${base_libdir}/mdev/adc ${base_libdir}/mdev/mmc ${base_libd
 # hwclock bootscript init parameters
 INITSCRIPT_PARAMS_${PN}-hwclock = "start 20 S . stop 20 0 6 ."
 
+# NTPD package
+PACKAGES =+ "${PN}-ntpd"
+FILES_${PN}-ntpd = "${sysconfdir}/init.d/busybox-ntpd"
+INITSCRIPT_PACKAGES =+ "${PN}-ntpd"
+INITSCRIPT_NAME_${PN}-ntpd = "busybox-ntpd"
+
 do_install_append() {
 	if grep "CONFIG_MDEV=y" ${WORKDIR}/defconfig; then
 		if grep "CONFIG_FEATURE_MDEV_CONF=y" ${WORKDIR}/defconfig; then
@@ -33,6 +41,9 @@ do_install_append() {
 			ln -s ../lib/mdev/sd ${D}${base_bindir}/usbumount
 		fi
 	fi
+	if grep "CONFIG_NTPD=y" ${WORKDIR}/defconfig; then
+		install -m 0755 ${WORKDIR}/busybox-ntpd ${D}${sysconfdir}/init.d/
+	fi
 	# Install 'suspend' script
 	install -m 0755 ${WORKDIR}/suspend ${D}${base_bindir}
 }

meta-digi-del/recipes-core/packagegroups/packagegroup-del-core.bb

@@ -29,6 +29,7 @@ RDEPENDS_${PN} = "\
     base-files \
     base-passwd \
     busybox \
+    busybox-ntpd \
     ${VIRTUAL-RUNTIME_passwd_manager} \
     ${VIRTUAL-RUNTIME_initscripts} \
     ${@base_contains("MACHINE_FEATURES", "rtc", "busybox-hwclock", "", d)} \