#!/bin/bash
#
# Init file for Password Download Client
#
# chkconfig: 345 98 02
# description: Password Download Client
# Modify this line to specify the user (default is root)
user=root
# Add your DHCP lease folders here
DHCP_FOLDERS="/var/lib/dhclient/* /var/lib/dhcp3/*"
password_received=0
file_count=0
error_count=0
for DHCP_FILE in $DHCP_FOLDERS
do
if [ -f $DHCP_FILE ]
then
file_count=$((file_count+1))
PASSWORD_SERVER_IP=$(grep dhcp-server-identifier $DHCP_FILE | tail -1 | awk '{print $NF}' | tr -d '\;')
if [ -n $PASSWORD_SERVER_IP ]
then
logger -t "cloud" "Found password server IP $PASSWORD_SERVER_IP in $DHCP_FILE"
logger -t "cloud" "Sending request to password server at $PASSWORD_SERVER_IP"
password=$(wget -q -t 3 -T 20 -O - --header "DomU_Request: send_my_password" $PASSWORD_SERVER_IP:8080)
password=$(echo $password | tr -d '\r')
if [ $? -eq 0 ]
then
logger -t "cloud" "Got response from server at $PASSWORD_SERVER_IP"
case $password in
"") logger -t "cloud" "Password server at $PASSWORD_SERVER_IP did not have any password for the VM"
continue
;;
"bad_request") logger -t "cloud" "VM sent an invalid request to password server at $PASSWORD_SERVER_IP"
error_count=$((error_count+1))
continue
;;
"saved_password") logger -t "cloud" "VM has already saved a password from the password server at $PASSWORD_SERVER_IP"
continue
;;
*) logger -t "cloud" "VM got a valid password from server at $PASSWORD_SERVER_IP"
password_received=1
break
;;
esac
else
logger -t "cloud" "Failed to send request to password server at $PASSWORD_SERVER_IP"
error_count=$((error_count+1))
fi
else
logger -t "cloud" "Could not find password server IP in $DHCP_FILE"
error_count=$((error_count+1))
fi
fi
done
if [ "$password_received" == "0" ]
then
if [ "$error_count" == "$file_count" ]
then
logger -t "cloud" "Failed to get password from any server"
exit 1
else
logger -t "cloud" "Did not need to change password."
exit 0
fi
fi
logger -t "cloud" "Changing password ..."
echo $password | passwd --stdin $user
if [ $? -gt 0 ]
then
usermod -p `mkpasswd -m SHA-512 $password` $user
if [ $? -gt 0 ]
then
logger -t "cloud" "Failed to change password for user $user"
exit 1
else
logger -t "cloud" "Successfully changed password for user $user"
fi
fi
logger -t "cloud" "Sending acknowledgment to password server at $PASSWORD_SERVER_IP"
wget -t 3 -T 20 -O - --header "DomU_Request: saved_password" $PASSWORD_SERVER_IP:8080
exit 0
