1#!/bin/bash
2
3set -e
4
5# Get time from ME via ipmb
6# The last 4 bytes are the epoch time, e.g.
7# (iyyyyay) 0 11 0 72 0 4 18 169 82 95
8ret=$(busctl call xyz.openbmc_project.Ipmi.Channel.Ipmb "/xyz/openbmc_project/Ipmi/Channel/Ipmb" org.openbmc.Ipmb sendRequest yyyyay 0x01 0x0a 0x00 0x48 0)
9
10IFS=' ' read -r -a a <<< "${ret}"
11
12if [ "${a[1]}" -ne 0 ]
13then
14  echo "Failed to get time from ME: ${ret}"
15  exit 1
16fi
17
18t0=$((${a[7]}))
19t1=$((${a[8]}*256))
20t2=$((${a[9]}*256*256))
21t3=$((${a[10]}*256*256*256))
22t=$((${t0}+${t1}+${t2}+${t3}))
23echo "Setting date to ${t}"
24
25date -s @${t}
26