xcat-core/xCAT-client/bin/rcons

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#!/bin/sh
# Provide serial console access to nodes
# To handle cases like running this via sudo, get the home dir properly
os=`uname`
if [ "$os" == "Linux" ]; then
HOME=`getent passwd $(whoami)|cut -d: -f 6`
export HOME
fi
if [ "$os" == "AIX" ]; then
HOME=`lsuser -a home $(whoami)|cut -d= -f 2`
export HOME
fi
if [ -z "$1" ] || [ "$1" = "-h" ] || [ "$1" = "-help" ] || [ "$1" = "--help" ]; then
echo "rcons - remotely accesses the serial console of a node"
echo "rcons <singlenode> [conserver] [-f]"
echo "rcons <singlenode> [conserver] [-s]"
echo "rcons [-h|--help|-v|--version]"
exit 0
fi
if [ "$1" = "-v" ]; then
echo "Version 2.8"
exit 0
fi
if [ -n "$3" ] && [ "$3" = "-f" ]; then
FORCE=-f
CONSERVER=$2
fi
#console spy mode
if [ -n "$3" ] && [ "$3" = "-s" ]; then
FORCE=-s
CONSERVER=$2
fi
if [ -n "$2" ]; then
if [ "$2" = "-f" ]; then
FORCE=-f
else
if [ "$2" = "-s" ]; then
FORCE=-s
else
CONSERVER=$2
fi
fi
fi
if [ -f "/usr/bin/console" ] || [ -f "/bin/console" ]; then
#use conserver
if [ -z "$CONSERVER" ]; then
CONSERVER=`nodels $1 nodehm.conserver 2>/dev/null | awk -F: '{print $2}' | tr -d ' '`
fi
if [ -z "$CONSERVER" ]; then
CONSERVER=$XCATHOST
fi
if [ -z "$CONSERVER" ]; then
CONSERVER=localhost
fi
#NOTE: IPv6 is not good with the below if going by IP, needs more sophisticated
#parsing
CONSERVER=`echo $CONSERVER|cut -d: -f 1`
#Detect console support of SSL, only fixup consolerc if encryption is detected
if ! console -h 2>&1 | grep "encryption not compiled" > /dev/null; then
# generate .consolerc if it does not exist or is empty
if [ ! -s $HOME/.consolerc ]; then
cat > $HOME/.consolerc << EOF
config * {
port 782;
sslenabled yes;
sslauthority $HOME/.xcat/ca.pem;
sslcredentials $HOME/.xcat/client-cred.pem;
}
EOF
fi
else
# ssl is not enabled, comment out the ssl settings in .consolerc
if [ -f $HOME/.consolerc ]; then
sed -i 's/\Wssl/#ssl/1' $HOME/.consolerc
fi
fi
exec console $FORCE -M $CONSERVER $1
else
if [[ "$FORCE" == "-s" ]]; then
echo "Read-only mode is not supported, please run rcons without -s option."
exit 1
fi
#deal with consoles directly
output=`nodels $1 nodehm.conserver nodehm.cons nodehm.mgt 2>&1`
if [ $? -ne 0 ]; then
echo "$output"
exit 1
fi
if [ -z "$CONSERVER" ]; then
CONSERVER=`echo "$output"|grep nodehm.conserver|cut -d: -f3|tr -d ' \n'`
fi
CONS=`echo "$output" |grep /nodehm.cons$/|cut -d: -f3 | tr -d ' \n'`
if [ -z "$CONS" ]; then
CONS=`echo "$output"|grep nodehm.mgt|cut -d: -f3 | tr -d ' \n'`
fi
if [ -z "$CONS" ]; then
echo "Error: nodehm.mgt or nodehm.cons for node $1 not setup."
exit 1;
fi
#check if conserver is local host
result=`ping -c1 $CONSERVER 2>&1`
if [ $? -eq 0 ]; then
index1=`expr index "$result" "\("`
index2=`expr index "$result" "\)"`
pos=`expr $index1 + 1`
length=`expr $index2 - $index1`
length=`expr $length - 1`
cons_ip=`expr substr "$result" $pos $length`
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if [ "$os" == "AIX" ]; then
ifconfig |grep "$cons_ip"
else
ip addr |grep "$cons_ip"
fi
if [ $? -eq 0 ]; then
CONSERVER=""
fi
else
echo "Error: conserver $CONSERVER is not reachable."
exit 1;
fi
#echo "CONS=$CONS CONSERVER=$CONSERVER"
# check if others are using the console
if [[ -n $CONSERVER ]]; then
ssh $CONSERVER ps -ef |grep $1 |grep -v grep |grep "$XCATROOT/share/xcat/cons" > /dev/null
else
ps -ef |grep $1 |grep -v grep |grep "$XCATROOT/share/xcat/cons" > /dev/null
fi
if [ $? -eq 0 ]; then
if [[ "$FORCE" == "-f" ]] ; then
echo "Only one console can be run at a time for a node. Other consoles will be closed."
else
echo "Only one console can be run at a time for a node. Please close other consoles or run rcons with -f option."
exit 1;
fi
fi
echo "**** Enter ~? for help *****"
if [ -z "$XCATROOT" ]; then
cmdpath="/opt/xcat/share/xcat/cons"
else
cmdpath="$XCATROOT/share/xcat/cons"
fi
if [ -z "$CONSERVER" ]; then
exec $cmdpath/$CONS $1
else
exec ssh -t $CONSERVER "$cmdpath/$CONS $1"
fi
fi