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#!/bin/sh
#############################################################################
#
# exchange-bmc-os-info: Set OS and BMC (Baseboard Management Controller)
# parameters during system startup.
#
# version: 0.72
#
# Authors: Charles Rose <charles_rose@dell.com>
# Jordan Hargrave <jordan_hargrave@dell.com>
#
# Description: Script to set OS information in the BMC; fetch BMC IP/URL
# and set in the OS for use by other scripts/user.
#
# BMC IP and URL are made available in /var/run/bmc-info
#
# Example to launch BMC web-interface:
# # . /var/run/bmc-info
# # xdg-open $BMC_URL
#
# See here for details:
# https://fedoraproject.org/wiki/Features/AgentFreeManagement
#
# OEM Specific: OEM specific ipmi commands go in:
# 'oem_set_os_version' and 'oem_get_bmc_url'
#############################################################################
#
# chkconfig: 345 99 00
# description: Set OS name, hostname in BMC; make BMC IP/URL available in OS
# processname: exchange-bmc-os-info
# config: /etc/sysconfig/exchange-bmc-os-info
#
### BEGIN INIT INFO
# Provides: exchange-bmc-os-info
# Required-Start: ipmi
# Default-Start: 3 4 5
# Default-Stop: 0 1 2 6
#############################################################################
# GLOBALS
#############################################################################
CONFIGFILE=/etc/sysconfig/exchange-bmc-os-info
IPMI_TOOL=/usr/bin/ipmitool
BMC_INFO=/var/run/bmc-info
# BMC Manufacturer ID used in 'oem_set_os_version' and 'oem_get_bmc_url'
DELL="674"
#OTHER_OEM="123"
# Defaults for ${CONFIGFILE}
SET_OS_INFO="yes"
RESET_OS_INFO="no"
SET_BMC_INFO="yes"
# getsysinfo and setsysinfo commands
IPMI_SET_SYSINFO="${IPMI_TOOL} mc setsysinfo"
IPMI_GET_SYSINFO="${IPMI_TOOL} mc getsysinfo"
#############################################################################
SCRIPT_NAME=$(basename $0)
# source config
[ -r ${CONFIGFILE} ] && . ${CONFIGFILE}
RETVAL=0
if [ -f /bin/gettext.sh ]; then
GETTEXT=1
. /bin/gettext.sh
OUTPUT="eval_gettext"
else
GETTEXT=0
OUTPUT="echo"
fi
#############################################################################
# Get Vendor ID of BMC for use in 'oem_set_os_version' and 'oem_get_bmc_url'
#
get_bmc_vendor_id()
{
BMC_VENDOR=$(${IPMI_TOOL} mc info 2>/dev/null | \
sed -n "s#^Manufacturer ID.*: ##p")
[ -z "${BMC_VENDOR}" ] && RETVAL=4
}
# set/getsysinfo support was added to ipmitool post v1.8.12 via this patch
# http://sourceforge.net/mailarchive/message.php?msg_id=29647222
check_ipmitool()
{
if [ -x ${IPMI_TOOL} ]; then
[ ! ${IPMI_GET_SYSINFO} >/dev/null 2>&1 ] && \
RETVAL=3
else
RETVAL=2
fi
}
bmc_exists()
{
check_ipmitool
[ $RETVAL -eq 0 ] && get_bmc_vendor_id
return $RETVAL
}
#############################################################################
get_os_info()
{
OS_HOSTNAME=$(hostname)
KERNEL_VERSION=$(uname -r -m)
if [ -e /etc/lsb-release ] ; then
. /etc/lsb-release
NAME=${DISTRIB_ID}
VERSION="${DISTRIB_RELEASE} ${DISTRIB_CODENAME}"
fi
# we prefer systemd's /etc/os-release over other sources
[ -e /etc/os-release ] && . /etc/os-release
OS_NAME=${NAME}
OS_VERSION="${VERSION} kernel ${KERNEL_VERSION}"
}
oem_set_os_version()
{
# OS Version setting is not standard yet
# we need per vendor oem commands
case "${BMC_VENDOR}" in
$DELL) ${IPMI_SET_SYSINFO} delloem_os_version \
"${OS_VERSION}" > /dev/null 2>&1
return $?
;;
# Add OEM specific commands.
# Example:
# $OTHER_OEM) ${IPMI_SET_SYSINFO} otheroem_os_version \
# "${OS_VERSION}" > /dev/null 2>&1
# return $?
# ;;
*) return 0
;;
esac
}
set_os_info()
{
# Set and reset OS info in the BMC
if [ "$1" = "reset" ]; then
OS_NAME=""
OS_HOSTNAME=""
OS_VERSION=""
fi
${IPMI_SET_SYSINFO} os_name "${OS_NAME}" >/dev/null 2>&1 \
|| RETVAL=6
${IPMI_SET_SYSINFO} primary_os_name "${OS_NAME}" >/dev/null 2>&1 \
|| RETVAL=6
${IPMI_SET_SYSINFO} system_name "${OS_HOSTNAME}" >/dev/null 2>&1 \
|| RETVAL=6
oem_set_os_version || RETVAL=6
}
#############################################################################
valid_url()
{
url="(https?|http)://[a-z0-9-]+(\.[a-z0-9-]+)+([/?].*)?"
printf -- "%s" "${TMP_URL}"| grep -Eq "^${url}"
return $?
}
oem_get_bmc_url()
{
# BMC URL is not standard yet
# we need per vendor oem commands
case "$BMC_VENDOR" in
$DELL) TMP_URL=$(${IPMI_GET_SYSINFO} delloem_url 2> /dev/null)
;;
# Add OEM specific commands
# Example:
# $OTHER_OEM)
# TMP_URL=$(${IPMI_GET_SYSINFO} otheroem_url 2> /dev/null)
# ;;
*) TMP_URL="" ;;
esac
valid_url && BMC_URL=${TMP_URL} || BMC_URL=""
}
valid_ip()
{
#Thanks to mkyong.com
octet="([01]?[[:digit:]][[:digit:]]?|2[0-4][[:digit:]]|25[0-5])"
printf -- "%s" "${TMP_IPv4}"| grep -Eq "^${octet}\\.${octet}\\.${octet}\\.${octet}$"
return $?
}
get_bmc_ip()
{
#Thanks to http://ingvar.blog.redpill-linpro.com
for CHANNEL in `seq 1 14`
do
[ $(${IPMI_TOOL} lan print ${CHANNEL} 2>/dev/null \
| grep -q "^Set") ] || break
done
# Get BMC_IPv4 and BMC_URL from BMC
TMP_IPv4=$(${IPMI_TOOL} lan print ${CHANNEL} 2>/dev/null \
| sed -n "s#^IP Address .*: ##p")
valid_ip && BMC_IPv4=${TMP_IPv4} || BMC_IPv4=""
}
get_bmc_info()
{
get_bmc_ip
if [ -z "${BMC_IPv4}" ] || [ "${BMC_IPv4}" = "0.0.0.0" ]; then
BMC_IPv4=""
RETVAL=5
else
# URL makes sense only if there is an IP
oem_get_bmc_url
fi
}
set_bmc_info()
{
if [ ! $(touch "${BMC_INFO}" && chmod 600 "${BMC_INFO}") ]; then
printf "BMC_IPv4=%s\n" "${BMC_IPv4}" > "${BMC_INFO}"
[ -n "${BMC_URL}" ] && \
printf "BMC_URL=%s\n" "${BMC_URL}" >> "${BMC_INFO}"
else
RETVAL=5
fi
}
unset_bmc_info()
{
[ -f ${BMC_INFO} ] && rm -f ${BMC_INFO} > /dev/null 2>&1
}
#############################################################################
start()
{
if bmc_exists; then
[ "${SET_OS_INFO}" = "yes" ] && \
get_os_info && set_os_info
if [ "${SET_BMC_INFO}" = "yes" ]; then
get_bmc_info
if [ ${RETVAL} -eq 0 ]; then
set_bmc_info
fi
fi
fi
}
#############################################################################
stop()
{
if bmc_exists; then
# reset OS info while system reboots
# aids with debugging OS boot-up issues
if [ "${RESET_OS_INFO}" = "yes" ]; then
set_os_info reset
fi
unset_bmc_info
fi
}
#############################################################################
restart()
{
stop
[ $RETVAL -eq 0 ] && start
}
#############################################################################
status()
{
[ -r ${BMC_INFO} ] && \
grep -q "BMC_IPv4" "${BMC_INFO}" >/dev/null 1>&2 && \
BMC_STATUS="ok" || BMC_STATUS="inactive"
${OUTPUT} "${SCRIPT_NAME}: ${BMC_STATUS}" 1>&2
[ ${GETTEXT} -eq 1 ] && echo
}
#############################################################################
usage()
{
${OUTPUT} "Usage: ${SCRIPT_NAME} {start|stop|restart|status}" 1>&2
[ ${GETTEXT} -eq 1 ] && echo
RETVAL=1
}
#############################################################################
# MAIN
#############################################################################
case "$1" in
start) start ;;
stop) stop ;;
restart) restart ;;
status) status ;;
*) usage ;;
esac
case "$RETVAL" in
0|1) ;;
2) ${OUTPUT} "${SCRIPT_NAME}: ipmitool(1) not found." 1>&2 ;;
3) ${OUTPUT} "${SCRIPT_NAME}: this version of ipmitool does not support getsysinfo." 1>&2 ;;
4) ${OUTPUT} "${SCRIPT_NAME}: failed to communicate with BMC." 1>&2 ;;
5) ${OUTPUT} "${SCRIPT_NAME}: failed to set OS information in BMC." 1>&2 ;;
6) ${OUTPUT} "${SCRIPT_NAME}: failed to get BMC information." 1>&2 ;;
*) ${OUTPUT} "${SCRIPT_NAME}: unexpected error." 1>&2 ;;
esac
if [ ${RETVAL} -gt 1 ]; then
${OUTPUT} " Return code: ${RETVAL}" 1>&2
[ ${GETTEXT} -eq 1 ] && echo
fi
exit ${RETVAL}
#############################################################################
# end of file
#############################################################################