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#!/bin/bash
#Attempt to gain a WAN connection for MDM Registration to query for this device's MDM account ID
#PREREQ: Firewall allows outgoing DHCP requests and MDM Client connection
CONFIG_FILE="/var/config/devicehq/config.json"
STATUS_FILE="/var/config/devicehq/status.json"
if [ ! -f $CONFIG_FILE ]; then
logger -t callhome "Config file missing!"
logger -t callhome "Do: mkdir /var/config/devicehq"
logger -t callhome "Then: cp /opt/devicehq/config.json.sample /var/config/devicehq/config.json"
exit 1
fi
JSON=$(cat $CONFIG_FILE)
ENABLED=$( echo $JSON | jsparser -p /enabled )
KEY=$( echo $JSON | jsparser -p /accountKey )
MDM_URL=$( echo $JSON | jsparser -p /deviceHqUrl )
if [ "$ENABLED" != "true" ]; then
logger -t callhome "Not calling home because DeviceHQ is disabled in /var/config/devicehq/config..json."
exit 1
fi
UUID=$(mts-io-sysfs show uuid)
DEVID=$(mts-io-sysfs show device-id)
MDM_REG_URL="$MDM_URL/api/v1/register-device"
TMPFILE="/var/run/callhome"
DONE=false
FORCE=false
WAN_AVAILABLE=true
MAX_ATTEMPTS=0 #Infinite
INTERVAL_SECONDS=30
#Gather options from command line
# Reset in case getopts has been used previously in the shell.
OPTIND=1
function show_help() {
echo "Usage: $0 -k <ACCOUNT KEY> -a <MAX ATTEMPTS> -i <INTERVAL SECONDS>"
}
while getopts "h?k:a:i:d:u:m:f" opt; do
case "$opt" in
h|\?)
show_help
exit 0
;;
k) KEY=$OPTARG
;;
a) MAX_ATTEMPTS=$OPTARG
;;
a) INTERVAL_SECONDS=$OPTARG
;;
f) FORCE=true
;;
d) DEVID=$OPTARG
;;
u) UUID=$OPTARG
;;
m) MDM_URL=$OPTARG
;;
esac
done
shift $((OPTIND-1))
[ "$1" = "--" ] && shift
if [ "$FORCE" == "true" ]; then
DONE=false
fi
function checkCallHomeNeeded() {
if [ "$FORCE" != "true" ]; then
JSON=$(cat $CONFIG_FILE)
KEY=$( echo $JSON | jsparser -p /accountKey )
LAST_CONNECTED="unknown"
STATUS=""
if [ -f $STATUS_FILE ]; then
JSON=$(cat $STATUS_FILE)
LAST_CONNECTED=$( echo $JSON | jsparser -p /lastConnected )
STATUS=$( echo $JSON | jsparser -p /status )
fi
if [ "$KEY" != "" ] && [ $LAST_CONNECTED != "unknown" ] && [ $STATUS == "idle" ]; then
echo "Found that Call-Home Not Needed"
exit 0
fi
fi
}
function saveConfigs() {
logger -t callhome "Saving accountKey"
sed -i "s/\"accountKey\"\s*:\s*\".*\"/\"accountKey\": \"$KEY\"/" $CONFIG_FILE
if [ $? != 0 ]; then
logger -t callhome "Failed to add account key [$KEY] to $CONFIG_FILE"
fi
}
function checkForCheckIn() {
i=0
while [ $i -lt 10 ]; do
if [ -f $STATUS_FILE ]; then
JSON=$(cat $STATUS_FILE)
LAST_CONNECTED=$( echo $JSON | jsparser -p /lastConnected )
STATUS=$( echo $JSON | jsparser -p /status )
if [ "$LAST_CONNECTED" == "unknown" ] || [ $STATUS != "idle" ]; then
logger -t callhome "MDM client has not checked-in yet"
else
logger -t callhome "SUCCESS! MDM Client has checked-in."
DONE=true
return
fi
else
logger -t callhome "MDM client has not checked-in yet"
fi
let i=i+1
logger -t callhome "Sleeping for 30 seconds."
sleep 30
done
}
function attemptMdmRegistration() {
logger -t callhome "Attempting to register with MDM"
CODE=$( curl -m 20 -ks -o $TMPFILE -w "%{http_code}" -X POST -H "Content-Type: application/json" \
-d '{ "device_id" : "'$DEVID'", "uuid" : "'$UUID'" }' \
$MDM_REG_URL )
if [ $? == 0 ]; then
if [ "$CODE" == "200" ]; then
logger -t callhome "Registered with MDM. Checking for Account Key"
#Request returned 200
KEY=$( cat $TMPFILE | jsparser -p /account_key )
if [ $? == 0 ]; then
if [ "$KEY" != "" ]; then
logger -t callhome "Received Account Key! [$KEY]"
saveConfigs
/etc/init.d/annex-client start
checkForCheckIn
else
logger -t callhome "Account Key not returned. This device may not be registered with a user account"
fi
else
RESULT=$(cat $TMPFILE)
logger -t callhome "Error: Unexpected MDM Registration Server response: $RESULT"
fi
else
RESULT=$(cat $TMPFILE)
logger -t callhome "Error: MDM Registration Failed with Device ID [$DEVID] and UUID [$UUID]"
logger -t callhome "Error: MDM Registration Server Response Header Code: $CODE"
logger -t callhome "Error: MDM Registration Server Response Body Content: $RESULT"
fi
else
logger -t callhome "Warning: Could not connect to MDM server: $MDM_REG_URL"
fi
}
logger -t callhome "Setting Up Call-Home "
COUNT=0
while [ $DONE == false ]; do
logger -t callhome "Attempts: $COUNT"
checkCallHomeNeeded
attemptMdmRegistration
COUNT=$(($COUNT+1))
if [ $MAX_ATTEMPTS != 0 ] && [ $COUNT -gt $MAX_ATTEMPTS ]; then
DONE=true
logger -t callhome "Reached Maximum Attempts [$MAX_ATTEMPTS]"
fi
if [ $DONE == false ]; then
logger -t callhome "Sleeping for $INTERVAL_SECONDS seconds before next attempt"
sleep $INTERVAL_SECONDS
fi
done
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