Add some stuff

systems/lctr-a72xx/fs/etc/dhcp/dhclient-exit-hooks.d/debug

@@ -0,0 +1 @@
+../debug

systems/lctr-a72xx/fs/etc/dhcp/dhclient-exit-hooks.d/hook-dhclient

@@ -0,0 +1,27 @@
+#!/bin/sh
+# This file is part of cloud-init. See LICENSE file for license information.
+
+# This script writes DHCP lease information into the cloud-init run directory
+# It is sourced, not executed.  For more information see dhclient-script(8).
+
+is_azure() {
+    local dmi_path="/sys/class/dmi/id/board_vendor" vendor=""
+    if [ -e "$dmi_path" ] && read vendor < "$dmi_path"; then
+        [ "$vendor" = "Microsoft Corporation" ] && return 0
+    fi
+    return 1
+}
+
+is_enabled() {
+    # only execute hooks if cloud-init is enabled and on azure
+    [ -e /run/cloud-init/enabled ] || return 1
+    is_azure
+}
+
+if is_enabled; then
+   case "$reason" in
+      BOUND) cloud-init dhclient-hook up "$interface";;
+      DOWN|RELEASE|REBOOT|STOP|EXPIRE)
+         cloud-init dhclient-hook down "$interface";;
+   esac
+fi

systems/lctr-a72xx/fs/etc/dhcp/dhclient-exit-hooks.d/rfc3442-classless-routes

@@ -0,0 +1,78 @@
+# set classless routes based on the format specified in RFC3442
+# e.g.:
+#   new_rfc3442_classless_static_routes='24 192 168 10 192 168 1 1 8 10 10 17 66 41'
+# specifies the routes:
+#   192.168.10.0/24 via 192.168.1.1
+#   10.0.0.0/8 via 10.10.17.66.41
+
+RUN="yes"
+
+
+if [ "$RUN" = "yes" ]; then
+	if [ -n "$new_rfc3442_classless_static_routes" ]; then
+		if [ "$reason" = "BOUND" ] || [ "$reason" = "REBOOT" ]; then
+
+			set -- $new_rfc3442_classless_static_routes
+
+			while [ $# -gt 0 ]; do
+				net_length=$1
+				via_arg=''
+
+				case $net_length in
+					32|31|30|29|28|27|26|25)
+						if [ $# -lt 9 ]; then
+							return 1
+						fi
+						net_address="${2}.${3}.${4}.${5}"
+						gateway="${6}.${7}.${8}.${9}"
+						shift 9
+						;;
+					24|23|22|21|20|19|18|17)
+						if [ $# -lt 8 ]; then
+							return 1
+						fi
+						net_address="${2}.${3}.${4}.0"
+						gateway="${5}.${6}.${7}.${8}"
+						shift 8
+						;;
+					16|15|14|13|12|11|10|9)
+						if [ $# -lt 7 ]; then
+							return 1
+						fi
+						net_address="${2}.${3}.0.0"
+						gateway="${4}.${5}.${6}.${7}"
+						shift 7
+						;;
+					8|7|6|5|4|3|2|1)
+						if [ $# -lt 6 ]; then
+							return 1
+						fi
+						net_address="${2}.0.0.0"
+						gateway="${3}.${4}.${5}.${6}"
+						shift 6
+						;;
+					0)	# default route
+						if [ $# -lt 5 ]; then
+							return 1
+						fi
+						net_address="0.0.0.0"
+						gateway="${2}.${3}.${4}.${5}"
+						shift 5
+						;;
+					*)	# error
+						return 1
+						;;
+				esac
+
+				# take care of link-local routes
+				if [ "${gateway}" != '0.0.0.0' ]; then
+					via_arg="via ${gateway}"
+				fi
+
+				# set route (ip detects host routes automatically)
+				ip -4 route add "${net_address}/${net_length}" \
+					${via_arg} dev "${interface}" >/dev/null 2>&1
+			done
+		fi
+	fi
+fi

systems/lctr-a72xx/fs/etc/dhcp/dhclient-exit-hooks.d/timesyncd

@@ -0,0 +1,42 @@
+TIMESYNCD_CONF=/run/systemd/timesyncd.conf.d/01-dhclient.conf
+
+timesyncd_servers_setup_remove() {
+        if [ -e $TIMESYNCD_CONF ]; then
+            rm -f $TIMESYNCD_CONF
+            systemctl try-restart systemd-timesyncd.service || true
+        fi
+}
+
+timesyncd_servers_setup_add() {
+        if [ ! -d /run/systemd/system ]; then
+                return
+        fi
+
+        if [ -e $TIMESYNCD_CONF ] && [ "$new_ntp_servers" = "$old_ntp_servers" ]; then
+                return
+        fi
+
+        if [ -z "$new_ntp_servers" ]; then
+                timesyncd_servers_setup_remove
+                return
+        fi
+
+        mkdir -p $(dirname $TIMESYNCD_CONF)
+        cat <<EOF > ${TIMESYNCD_CONF}.new
+# NTP server entries received from DHCP server
+[Time]
+NTP=$new_ntp_servers
+EOF
+        mv ${TIMESYNCD_CONF}.new ${TIMESYNCD_CONF}
+        systemctl try-restart systemd-timesyncd.service || true
+}
+
+
+case $reason in
+        BOUND|RENEW|REBIND|REBOOT)
+                timesyncd_servers_setup_add
+                ;;
+        EXPIRE|FAIL|RELEASE|STOP)
+                timesyncd_servers_setup_remove
+                ;;
+esac