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#!/bin/bash
#BMC set time from host
set -e
echo "set-bmc-time-from-host is started"
# Sync BMC's date with one of the four servers
HOST_INSTANCES="HOST_INSTANCES_SED_REPLACEMENT_VALUE"
MAX_RETRY_LIMIT=6
check_NTP_status()
{
timedatectl show --property=NTPSynchronized --value
}
get_single_host_time()
{
for (( retry=1; retry<=5; retry++ ))
do
#request the single host time via ipmb command
# which will be set as bmc time
# 0x01 - me channel | 0x0a - storage net fn | 0x00 - lun
# 0x48 - get SEL time
ipmi_cmd_output=$(busctl call xyz.openbmc_project.Ipmi.Channel.Ipmb \
"/xyz/openbmc_project/Ipmi/Channel/Ipmb" org.openbmc.Ipmb sendRequest \
yyyyay 0x01 0x0a 0x00 0x48 0)
ipmb_result=$?
if [ "$ipmb_result" == "0" ];then
sleep 1
break
fi
done
if [ "$retry" == "$MAX_RETRY_LIMIT" ];then
exit 1
fi
echo "$ipmi_cmd_output"
}
get_multi_host_datetime()
{
ipmbAddr=$1
for (( retry=1; retry<=5; retry++ ))
do
#request the multihost host time via ipmb command
# which will be set as bmc time
# 0x38 - oem net fn | 0x00 - lun | 0x02 - request to bridge ic cmd
# 0x6 - length | IANA id 0x15 0xA0 0x0 |0x48 - get SEL time
ipmi_cmd_output=$(busctl call xyz.openbmc_project.Ipmi.Channel.Ipmb \
/xyz/openbmc_project/Ipmi/Channel/Ipmb org.openbmc.Ipmb sendRequest \
yyyyay "$ipmbAddr" 0x38 0 0x2 6 0x15 0xA0 0x0 0x1 0x28 0x48)
ipmb_result=$?
if [ $ipmb_result == 0 ];then
break
fi
sleep 1
done
echo "$ipmi_cmd_output"
}
sync_multi_host_datetime()
{
for index in $HOST_INSTANCES
do
ipmb_addr=$(((index-1)*4))
# Use standard IPMI command 'SendRequest method' to read RTC time
echo "chosen ipmb addr : "$ipmb_addr
multi_host_time_result=$(get_multi_host_datetime $ipmb_addr)
if [[ $(echo "$multi_host_time_result" | awk '{ print NF }') -eq 18 ]];
then
echo "syncing up host " $index " date time with bmc..."
date -s @$((0x$(echo "$multi_host_time_result" | \
awk '{printf "%02x%02x%02x%02x",$18,$17,$16,$15}')))
sync
break
fi
done
}
sync_single_host_datetime()
{
single_host_time_result=$(get_single_host_time)
if [[ $(echo "$single_host_time_result" | awk '{ print NF }') -eq 11 ]];
then
echo "Syncing up host date time with bmc..."
date -s @$((0x$(echo "$single_host_time_result" | \
awk '{printf "%02x%02x%02x%02x",$11,$10,$9,$8}')))
sync
fi
}
#wait for the NTP server start if available.
sleep 60
NTP_STATUS=$(check_NTP_status)
echo "NTP status :""$NTP_STATUS"
if [ "$NTP_STATUS" == "yes" ]; then
echo "NTP is running and system clock is in sync.skiping host time sync..."
exit 0
fi
if [ "$HOST_INSTANCES" == "0" ]; then
echo "single host instance"
sync_single_host_datetime
else
echo "multiple host instance"
sync_multi_host_datetime
fi
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