rdkcentral · sindhu-krishnan · Jul 8, 2026 · Jul 8, 2026 · Jul 8, 2026 · Jul 8, 2026
@@ -0,0 +1,74 @@
+/*
+ * If not stated otherwise in this file or this component's Licenses.txt file the
+ * following copyright and licenses apply:
+ *
+ * Copyright 2015 RDK Management
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+*/
+
+#include <stdio.h>
+#include "srvmgr.h"
+
+#define SERVICE_NAME            "chronyd"
+#define SERVICE_DEFAULT_HANDLER "/etc/utopia/service.d/service_chronyd.sh"
+
+/*
+ * Listen to the same network events as ntpd so chronyd starts when WAN comes up.
+ * ipv6_connection_state is registered for HUB4/SKY platforms (guarded in the
+ * handler script itself — no compile-time flag needed here because the RFC flag
+ * /nvram/chrony_enabled gates all execution in service_chronyd.sh).
+ */
+#ifdef _HUB4_PRODUCT_REQ_
+const char* SERVICE_CUSTOM_EVENTS[] = {
+    "wan-status|/etc/utopia/service.d/service_chronyd.sh",
+    "ipv6_connection_state|/etc/utopia/service.d/service_chronyd.sh",
+    NULL
+};
+#else
+const char* SERVICE_CUSTOM_EVENTS[] = {
+    "wan-status|/etc/utopia/service.d/service_chronyd.sh",
+    NULL
+};
+#endif
+
+void srv_register(void) {
+    sm_register(SERVICE_NAME, SERVICE_DEFAULT_HANDLER, SERVICE_CUSTOM_EVENTS);
+}
+
+void srv_unregister(void) {
+    sm_unregister(SERVICE_NAME);
+}
+
+int main(int argc, char **argv)
+{
+    cmd_type_t choice = parse_cmd_line(argc, argv);
+
+    switch (choice) {
+        case(nochoice):
+        case(start):
+            srv_register();
+            break;
+        case(stop):
+            srv_unregister();
+            break;
+        case(restart):
+            srv_unregister();
+            srv_register();
+            break;
+        default:
+            printf("%s called with invalid parameter (%s)\n",
+                   argv[0], argc == 1 ? "" : argv[1]);
+    }
+    return 0;
+}
@@ -51,6 +51,7 @@ bin_PROGRAMS = \
     09_xdns \
     10_firewall \
     10_ntpd \
+    10_chronyd \
     15_ccsphs \
     15_ddnsclient \
     15_dhcp_server \
@@ -103,6 +104,7 @@ endif
 10_fpm_SOURCES = 10_fpm.c
 10_ntpclient_SOURCES = 10_ntpclient.c
 10_ntpd_SOURCES = 10_ntpd.c
+10_chronyd_SOURCES = 10_chronyd.c
 10_sysevent_proxy_SOURCES = 10_sysevent_proxy.c
 10_time_sync_peer_SOURCES = 10_time_sync_peer.c
 15_ccsphs_SOURCES = 15_ccsphs.c

@@ -0,0 +1,258 @@
+#!/bin/sh
+##########################################################################
+# If not stated otherwise in this file or this component's Licenses.txt
+# file the following copyright and licenses apply:
+#
+# Copyright 2015 RDK Management
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+##########################################################################
+
+source /etc/utopia/service.d/ulog_functions.sh
+source /etc/utopia/service.d/log_capture_path.sh
+source /etc/log_timestamp.sh    # define 'echo_t' ASAP!
+source /etc/waninfo.sh
+source /etc/device.properties
+
+SERVICE_NAME="chronyd"
+SELF_NAME="`basename "$0"`"
+CHRONY_CONF_TMP=/etc/rdk_chrony.conf
+CHRONY_BIN=chronyd
+LOCKFILE=/var/tmp/service_chronyd.pid
+RFC_FLAG=/nvram/chrony_enabled
+SYNC_FILE=/tmp/clock-event
+NTP_SYNCED_FILE=/tmp/.ntp_time_synced
+
+# /rdklogs is a tmpfs that starts empty on every boot; the logs/ subdirectory
+# may not exist yet when this script fires early in the boot sequence.
+# Ensure it exists before any echo_t write so no log lines are silently dropped.
+mkdir -p /rdklogs/logs
+
+if [ -z "$NTPD_LOG_NAME" ]; then
+    NTPD_LOG_NAME=/rdklogs/logs/ntpLog.log
+fi
+
+CONNCHECK_FILE="/tmp/connectivity_check_done"
+
+LANIPV6Support=$(sysevent get LANIPv6GUASupport)
+CURRENT_WAN_STATUS=$(sysevent get wan-status)
+WAN_INTERFACE=$(getWanInterfaceName)
+
+# ──────────────────────────────────────────────────────────────────────────────
+# service_init: load syscfg NTP server values into environment
+# ──────────────────────────────────────────────────────────────────────────────
+service_init() {
+    FOO=$(utctx_cmd get ntp_server1 ntp_server2 ntp_server3 ntp_server4 ntp_server5 \
+                       ntp_enabled new_ntp_enabled)
+    eval "$FOO"
+}
+
+# ──────────────────────────────────────────────────────────────────────────────
+# set_chrony_sync_status: background monitor — polls chronyc until Leap=Normal
+# ──────────────────────────────────────────────────────────────────────────────
+set_chrony_sync_status() {
+    local retry=1
+    local MAX_RETRY=12   # 12 × 10s = 120s max wait
+
+    while true; do
+        if [ "$retry" -gt "$MAX_RETRY" ]; then
+            echo_t "SERVICE_CHRONYD : sync not confirmed within 120s — daemon still running" >> $NTPD_LOG_NAME
+            break
+        fi
+
+        leap=$(chronyc tracking 2>/dev/null | grep "Leap status" | awk '{print $NF}')
+        if [ "$leap" = "Normal" ]; then
+            echo_t "SERVICE_CHRONYD : time sync confirmed (Leap status Normal)" >> $NTPD_LOG_NAME
+            syscfg set ntp_status 3
+            sysevent set ntp_time_sync 1
+            touch "$SYNC_FILE"
+            touch "$NTP_SYNCED_FILE"
+            DEVICEFIRSTUSEDATE=$(syscfg get device_first_use_date)
+            if [ -z "$DEVICEFIRSTUSEDATE" ] || [ "0" = "$DEVICEFIRSTUSEDATE" ]; then
+                syscfg set device_first_use_date "$(date +%Y-%m-%dT%H:%M:%S)"
+            fi
+            break
+        fi
+
+        retry=$((retry + 1))
+        sleep 10
+    done
+    exit 0
+}
+
+waitForConnChkFile()
+{ 
+    echo_t "SERVICE_CHRONYD CONNCHK: Waiting for connection check completion..." >> $NTPD_LOG_NAME
+    TIMEOUT=120
+    INTERVAL=1
+
+    # Get system uptime in seconds at start
+    START_TIME=$(cut -d. -f1 /proc/uptime)
+
+    echo_t "SERVICE_CHRONYD : Waiting for $CONNCHECK_FILE (max ${TIMEOUT}s)..." >> $NTPD_LOG_NAME
+
+    while true; do
+        if [ -f "$CONNCHECK_FILE" ]; then
+            echo_t "SERVICE_CHRONYD : File $CONNCHECK_FILE present" >> $NTPD_LOG_NAME
+            return 0
+        fi
+
+        CURRENT_TIME=$(cut -d. -f1 /proc/uptime)
+        ELAPSED=$((CURRENT_TIME - START_TIME))
+
+        if [ "$ELAPSED" -ge "$TIMEOUT" ]; then
+            echo_t "SERVICE_CHRONYD : Timeout ${TIMEOUT}s expired - file $CONNCHECK_FILE not found" >> $NTPD_LOG_NAME
+            return 1
+        fi
+
+        sleep "$INTERVAL"
+    done
+}
+# ──────────────────────────────────────────────────────────────────────────────
+# service_start: main start path
+# ──────────────────────────────────────────────────────────────────────────────
+service_start() {
+    # RFC guard — only run if flag is present
+    if [ ! -f "$RFC_FLAG" ]; then
+        echo_t "SERVICE_CHRONYD : RFC flag absent — chrony path inactive" >> $NTPD_LOG_NAME
+        return 0   
+    fi
+
+   # Wait for connectivitycheck to complete
+   if [ -f $CONNCHECK_FILE ]; then
+       echo_t "SERVICE_CHRONYD : connectivity success $CONNCHECK_FILE present" >> $NTPD_LOG_NAME
+   else
+       # Exclude XLE device from connectivity check. TODO
+       if [ "$BOX_TYPE" != "WNXL11BWL" ];then
+           echo_t "SERVICE_CHRONYD : start connectivity check waiting for $CONNCHECK_FILE file" >> $NTPD_LOG_NAME
+           waitForConnChkFile
+	   fi
+   fi
+
+    if [ -n "$SYSCFG_ntp_enabled" ] && [ "0" = "$SYSCFG_ntp_enabled" ]; then
+        syscfg set ntp_status 2
+        sysevent set ${SERVICE_NAME}-status "stopped"
+        return 0
+    fi
+
+    # Do not start a second instance if chronyd is already running
+    if pidof "$CHRONY_BIN" > /dev/null 2>&1; then
+        echo_t "SERVICE_CHRONYD : already running (pid=$(pidof $CHRONY_BIN)), skipping start" >> $NTPD_LOG_NAME
+        return 0
+    fi
+
+    syscfg set ntp_status 2
+    sysevent set ${SERVICE_NAME}-status "starting"
+
+
+    if [ "started" != "$CURRENT_WAN_STATUS" ]; then
+            syscfg set ntp_status 2
+            sysevent set ${SERVICE_NAME}-status "wan-down"
+            return 0
+    fi
+
+
+    # Stop ntpd if running — mutual exclusivity with chrony
+    if pidof ntpd > /dev/null 2>&1; then
+        echo_t "SERVICE_CHRONYD : stopping ntpd for mutual exclusivity" >> $NTPD_LOG_NAME
+        systemctl stop ntpd 2>/dev/null
+        killall ntpd 2>/dev/null
+        sleep 2
+    fi
+
+    # Start chronyd — only reaches here when no instance is running
+	# start chronyd will populate the config based on latest RFC configuration
+    echo_t "SERVICE_CHRONYD : starting chronyd daemon" >> $NTPD_LOG_NAME
+    systemctl start chronyd
+    rc=$?
+    if [ "$rc" -eq 0 ]; then
+           if [ -e "/usr/bin/print_uptime" ] && [ ! -f "/tmp/ntp_boot_uptime_logged" ]; then
+               /usr/bin/print_uptime "boot_to_chrony_uptime"
+               touch /tmp/ntp_boot_uptime_logged
+           fi
+    fi
+    if [ "$rc" -ne 0 ]; then
+        echo_t "SERVICE_CHRONYD : systemctl start chronyd failed (rc=$rc)" >> $NTPD_LOG_NAME
+        sysevent set ${SERVICE_NAME}-status "error"
+        return 1
+    fi
+
+
+    sysevent set ${SERVICE_NAME}-status "started"
+    echo_t "SERVICE_CHRONYD : chronyd started — monitoring sync in background" >> $NTPD_LOG_NAME
+
+    # Background sync monitor
+    set_chrony_sync_status &
+}
+
+# ──────────────────────────────────────────────────────────────────────────────
+# service_stop
+# ──────────────────────────────────────────────────────────────────────────────
+service_stop() {
+
+    # RFC guard — if chrony is not the active client, nothing to stop
+     if ! systemctl is-active --quiet chronyd; then
+        echo_t "SERVICE_CHRONYD : chronyd is not running — skipping chronyd stop" >> $NTPD_LOG_NAME
+        return 0
+    fi
+    echo_t "SERVICE_CHRONYD : stopping chronyd" >> $NTPD_LOG_NAME
+    systemctl stop chronyd 2>/dev/null
+    killall chronyd 2>/dev/null
+    sysevent set ${SERVICE_NAME}-status "stopped"
+}
+
+# ──────────────────────────────────────────────────────────────────────────────
+# Script entry point — serialise concurrent invocations via lockfile
+# ──────────────────────────────────────────────────────────────────────────────
+while [ -e "$LOCKFILE" ]; do
+    kill -0 "$(cat "$LOCKFILE")" 2>/dev/null || break
+    echo_t "SERVICE_CHRONYD : waiting for parallel instance to finish..." >> $NTPD_LOG_NAME
+    sleep 1
+done
+
+trap 'rm -f ${LOCKFILE}; exit' INT TERM EXIT
+echo $$ > "$LOCKFILE"
+
+service_init
+CURRENT_WAN_STATUS=$(sysevent get wan-status)
+
+case "$1" in
+    "${SERVICE_NAME}-start")
+        echo_t "SERVICE_CHRONYD : ${SERVICE_NAME}-start received" >> $NTPD_LOG_NAME
+        service_start
+        ;;
+    "${SERVICE_NAME}-stop")
+        echo_t "SERVICE_CHRONYD : ${SERVICE_NAME}-stop received" >> $NTPD_LOG_NAME
+        service_stop
+        ;;
+    "${SERVICE_NAME}-restart")
+        echo_t "SERVICE_CHRONYD : ${SERVICE_NAME}-restart received" >> $NTPD_LOG_NAME
+        service_stop
+        service_start
+        ;;
+    wan-status)
+        if [ "started" = "$CURRENT_WAN_STATUS" ]; then
+                # First sync this boot — service_start() guards against duplicate instances via pidof
+                echo_t "SERVICE_CHRONYD : wan-status=started, calling service_start" >> $NTPD_LOG_NAME
+                service_start
+        fi
+        ;;
+    *)
+        echo "Usage: $SELF_NAME [ ${SERVICE_NAME}-start | ${SERVICE_NAME}-stop | ${SERVICE_NAME}-restart | wan-status | ipv6_connection_state ]" >&2
+        rm -f "$LOCKFILE"
+        exit 3
+        ;;
+esac
+
+echo_t "SERVICE_CHRONYD : end of script" >> $NTPD_LOG_NAME
+rm -f "$LOCKFILE"
@@ -52,6 +52,7 @@ LOCKFILE=/var/tmp/service_ntpd.pid
 BIN=ntpd
 QUICK_SYNC_PID=""
 QUICK_SYNC_DONE=0
+RFC_FLAG=/nvram/chrony_enabled
 
 STATIC_INTERFACE=$NTPD_INTERFACE
 WAN_INTERFACE=$(getWanInterfaceName)
@@ -332,6 +333,15 @@ set_ntp_driftsync_status ()
 
 service_start ()
 {
+   if [ -f "$RFC_FLAG" ]; then
+        echo_t "SERVICE_NTPD : RFC flag Present — chrony is the active NTP client" >> $NTPD_LOG_NAME
+        sysevent set ${SERVICE_NAME}-status "stopped"
+        if pidof "$BIN" > /dev/null 2>&1; then
+            echo_t "SERVICE_NTPD : stopping ntpd because chrony is enabled" >> $NTPD_LOG_NAME
+            service_stop
+        fi
+        return 0
+    fi
 
    local NTP_SERVER_URL_RESTORE="false"
    # Wait for connectivitycheck to complete