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Extended GetHostID function, ip binary preferred for detection

This commit is contained in:
mboelen 2014-08-27 12:53:09 +02:00
parent 4398db3e45
commit 64c48d5559
1 changed files with 23 additions and 19 deletions
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36
include/functions
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@ -269,9 +269,11 @@
;;
"Linux")
if [ ! "${IPBINARY}" = "" ]; then
# Define preferred interfaces
#PREFERRED_INTERFACES="eth0 eth1 eth2 enp0s25"
# Only use ifconfig if no ip binary has been found
if [ ! "${IFCONFIGBINARY}" = "" -a "${IPBINARY}" = "" ]; then
# Determine if we have ETH0 at all (not all Linux distro have this, e.g. Arch)
HASETH0=`${IFCONFIGBINARY} | grep "^eth0"`
# Check if we can find it with HWaddr on the line
@ -288,33 +290,35 @@
else
FIND=`${IFCONFIGBINARY} 2> /dev/null | grep "ether " | awk '{ print $2 }' | head -1 | tr '[:upper:]' '[:lower:]'`
if [ "${FIND}" = "" ]; then
report "exception[]=No eth0 found (and no ether was found)"
report "exception[]=No eth0 found (and no ether was found with ifconfig)"
else
logtext "Result: No eth0 found (ether found), using first network interface to determine hostid"
logtext "Result: No eth0 found (ether found), using first network interface to determine hostid (with ifconfig)"
fi
fi
else
FIND=`${IFCONFIGBINARY} 2> /dev/null | grep HWaddr | head -1 | awk '{ print $5 }' | tr '[:upper:]' '[:lower:]'`
report "exception[]=No eth0 found (but HWaddr was found), using first network interface to determine hostid"
report "exception[]=No eth0 found (but HWaddr was found), using first network interface to determine hostid, with ifconfig"
fi
fi
fi
if [ ! "${HASETH0}" = "" ]; then
# Now determine the MAC with the ip command
FIND2=`${IPBINARY} addr show eth0 2> /dev/null | egrep "link/ether " | awk '{ print $2 }' | tr '[:upper:]' '[:lower:]'`
else
# Forcing them to be the same. Unreliable to test with ip while knowing eth0 does not exist.
# Additionally usually lo0 will show up first, making test not worth doing.
FIND2="${FIND}"
# Check with ip binary (preferred to ifconfig)
if [ ! "${IPBINARY}" = "" ]; then
# Determine if we have the common available eth0 interface
FIND=`${IPBINARY} addr show eth0 2> /dev/null | egrep "link/ether " | head -1 | awk '{ print $2 }' | tr '[:upper:]' '[:lower:]'`
if [ "${FIND}" = "" ]; then
# Determine the MAC address of first interface with the ip command
FIND=`${IPBINARY} addr show 2> /dev/null | egrep "link/ether " | head -1 | awk '{ print $2 }' | tr '[:upper:]' '[:lower:]'`
if [ "${FIND}" = "" ]; then
report "exception[]=Can't create hostid (no MAC addresses found)"
fi
fi
# Check if both commands give the same data
if [ "${FIND}" = "${FIND2}" ]; then
if [ ! "${FIND}" = "" ]; then
HOSTID=`echo ${FIND} | ${SHA1SUMBINARY} | awk '{ print $1 }'`
logtext "Result: Found HostID: ${HOSTID}"
else
report "exception[]=Can't create HOSTID, receiving different output from commands"
logtext "Debug: output FIND (ifconfig): ${FIND}"
logtext "Debug: output FIND2 (ip): ${FIND2}"
fi
else
report "exception[]=Can't create HOSTID, command ip not found"