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VMMgr_USB-daemon
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VMMgr_USB-daemon
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#! /bin/bash
#
# Script Name: VMMgr_USB-daemon
# Autor: Sylvain Girod ( uubu at gmx dot fr )
# Version: 0.03
# Description: script launched as daemon for scanning usb device, detect missing from config and re-add to the vm
# This is helper for manage unplugged devices
# This script stop automatically at VM exit
#
# How it work: A correct, plugged and fully working usb device have 4 characteristics:
# 1. it is plugged into the system, seen using lsusb command
# 2. 'info usbhost' show VENDOR:DEVICE
# 3. 'info usb' and 'info usbhost' show a Product Name
# 4. 'info usb' give a device ID
# First, we create a sqlite table named 'USB-<vmname>', to maintain fully working USB devices, then:
# 1) we collect the triplet VENDOR:DEVICE/Product/deviceID, and 'lsusb' check, then we add it into de sqlite table if all is ok
# All devices listed by 'info usb' but without it 4 characteristics are 'device_del' from the vm
# 2) once we have only fully working dev in the DB, we parse each USB device in vmconfig, we check if it exits into the host,
# and add it to the vm using device_add
# 3) and we loop while vm still running
#
# Note: 'info usb' and 'info usbhost' don't exists using QMP, so this script use HMP (telnet monitor).
# this is a problem because you will be disconnected repeatedly by the script
# Function: Delete_Missing_USB
# Description: Delete USB not plugged into the host
# Args:
# $1: VM Name
# $2: VENDOR:DEVICE
# $3: QMP IP
# $4: QMP PORT
function Delete_Missing_USB() {
DEVID=$(Db_Get_USB-ID $VMMGR_DB_PATH $1 $2)
if [ "$(lsusb -d $2)" == "" ] && [ "$DEVID" != "" ] ; then
{ echo " device_del $DEVID"; sleep 1; } | telnet ${3%:*} ${4##*:}
Db_Delete_USB-device $VMMGR_DB_PATH $1 $2
fi
}
# Function: Add_Missing_USB
# Description: Add USB to the VM
# Args:
# $1: VM Name
# $2: VENDOR:DEVICE
# $3: QMP IP
# $4: QMP PORT
# $5: (optional) driver path
function Add_Missing_USB() {
DEVID=$(Db_Get_USB-ID $VMMGR_DB_PATH $1 $2)
if [ "$(lsusb -d $2)" ] && [ ! "$DEVID" ] ; then
ADDCMD=$(SET_DIF_USB $2 $5)
{ echo " $ADDCMD"; sleep 1; } | telnet ${3%:*} ${4##*:}
USBID=${ADDCMD#*,id=}
USBID=${USBID%%,*}
for ENTRY in $( { echo " info usb"; sleep 1; } | telnet ${3%:*} ${4##*:} | tr \ _ | grep "Device" ); do
if [ "$( echo $ENTRY | grep $USBID)" ]; then
PRODUCT=${ENTRY##*Product_}
PRODUCT=${PRODUCT%%,_ID:*}
PRODUCT=$(echo $PRODUCT | tr \_ \ )
Db_Add_USB-device $VMMGR_DB_PATH $1 $2 "$PRODUCT" $USBID
break
fi
done
fi
}
### Loading configurations and libs ###
if [ -r /etc/VMMGR/VMMgr_.conf ]; then
. /etc/VMMGR/VMMgr_.conf
elif [ -r $(dirname $0)/VMMgr_.conf ]; then
. $(dirname $0)/VMMgr_.conf
else
echo "No config VMMgr_.conf found, abording..."
exit -1
fi
if [ -r $VMMGR_LIB_PATH/VMMgr_Functions ]; then
. $VMMGR_LIB_PATH/VMMgr_Db
. $VMMGR_LIB_PATH/VMMgr_Functions
. $VMMGR_LIB_PATH/VMMgr_Networks
. $VMMGR_LIB_PATH/VMMgr_Disks
. $VMMGR_LIB_PATH/VMMgr_CPUs
. $VMMGR_LIB_PATH/VMMgr_Install
. $VMMGR_LIB_PATH/VMMgr_Group
. $VMMGR_LIB_PATH/VMMgr_Dbm
. $VMMGR_LIB_PATH/VMMgr_Physical
. $VMMGR_LIB_PATH/VMMgr_RemoteAccess
. $VMMGR_LIB_PATH/VMMgr_Devices
fi
. $2
VMSTATE=$(VMMgr_Launcher status $1 | grep "VM status: running")
VMMGR_LOG "$1" "DB" "USB manager started for $1"
### Main ###
if [ "$PKEYBOARD" ] || [ "$PMOUSE" ] || [ "$PUSB" ] || [ "$SUSB" ] || [ "$DUSB" ]; then
Db_Create_USB_Table $VMMGR_DB_PATH $1
### Only with HMP, QMP don't work
if [ "$TELNET" == "on" ]; then
IPPORT=$(Set_Service_Listen $TELNETIP $TELNETIPVER $TELNETTYPE $NAME telnet $TELNETPORT)
TELNETTPL="-monitor telnet:$(ip -br a s | grep ${IPPORT%|*} | awk '{print $1}'):${IPPORT#*|},server,nowait"
TIP=${TELNETTPL##*monitor telnet:}
TIP=${TIP%%,server,nowait}
while [ "$VMSTATE" != "" ]; do
USBHOST=()
USB=()
### 1. Getting USB device (info usbhost) on the VM:
for ENTRY in $( { echo " info usbhost"; sleep 1; } | telnet ${TIP%:*} ${TIP##*:} | tr \ _ | grep "USB_device" | grep "," 2>/dev/null); do
USBHOST+=($ENTRY)
done
### and we create 2 array, one for DEVICE:VENDOR, and one for Product name:
for count in $(seq 0 $(( ${#USBHOST[@]} - 1 )) ); do
DEVICE=${USBHOST[$count]}
DEVICE=$(echo $DEVICE | tr \_ \ | tr -d , );
DEVICE=$(echo ${DEVICE##*USB device});
read -r VD[$count] PROD <<< $(echo $DEVICE);
PRODUCT[$count]=$(echo $PROD | dos2unix )
done
### 2. Getting USB devices (info usb) on the VM:
for ENTRY in $( { echo " info usb"; sleep 1; } | telnet ${TIP%:*} ${TIP##*:} | tr \ _ | grep "Device" | grep -v "Product_USB_Redirection" 2>/dev/null); do
USB+=($ENTRY)
done
### We create 2 array, one for Product name, and one with ID
for count in $(seq 0 $(( ${#USB[@]} - 1 )) ); do
DEVICE=${USB[$count]}
DEVICE=${DEVICE##*Product_}
DEVICE=$(echo $DEVICE | tr \_ \ | tr -d , );
if [ "${DEVICE##*ID: }" == "" ]; then ### we cannot disconnect USB device without ID
continue;
fi
for count in $(seq 0 $(( ${#PRODUCT[@]} - 1 )) ); do
if [ "${PRODUCT[$count]}" == "${DEVICE%% ID:*}" ]; then
TMPDEVID=$(echo ${DEVICE##*ID: } | dos2unix)
Db_Add_USB-device $VMMGR_DB_PATH $1 "${VD[$count]}" "${DEVICE%% ID:*}" "$TMPDEVID"
break;
fi
done
done
### 3. device shown with 'info usb' and with a deviceID, but not in DB, we delete it:
for count in $(seq 0 $(( ${#USB[@]} - 1 )) ); do
DEVICE=${USB[$count]}
DEVICE=${DEVICE##*Product_}
DEVICE=$(echo $DEVICE | tr \_ \ | tr -d , );
if [ "${DEVICE##*ID: }" == "" ]; then ### we cannot disconnect USB device without ID
continue;
fi
DEVID=$(echo ${DEVICE##*ID: } | dos2unix)
DEVID=$(Db_Search_USB-ID $VMMGR_DB_PATH $1 $DEVID)
if [ "$DEVID" == "" ]; then
{ echo " device_del '$DEVID'"; sleep 1; } | telnet ${TIP%:*} ${TIP##*:}
fi
done
### 4. Manage unplugged USB devices: Take all USB devices in vmconfig, if in db, but not by 'lsusb', we delete it
if [ "$PKEYBOARD" ]; then
Delete_Missing_USB $1 $PKEYBOARD ${TIP%:*} ${TIP##*:}
fi
if [ "$PMOUSE" ]; then
Delete_Missing_USB $1 $PMOUSE ${TIP%:*} ${TIP##*:}
fi
if [ "$PUSB" ]; then
for USBKEY in ${PUSB[@]}; do
Delete_Missing_USB $1 $USBKEY ${TIP%:*} ${TIP##*:}
done
fi
if [ "$SUSB" ]; then
for USBKEY in ${SUSB[@]}; do
Delete_Missing_USB $1 ${USBKEY%%|*} ${TIP%:*} ${TIP##*:}
done
fi
if [ "$DUSB" ]; then
for USBKEY in ${DUSB[@]}; do
Delete_Missing_USB $1 ${USBKEY%%|*} ${TIP%:*} ${TIP##*:}
done
fi
### 5. All done, we can now parse vmconfig again, and add devices
if [ "$PKEYBOARD" ]; then
Add_Missing_USB $1 $PKEYBOARD ${TIP%:*} ${TIP##*:}
fi
if [ "$PMOUSE" ]; then
Add_Missing_USB $1 $PKEYBOARD ${TIP%:*} ${TIP##*:}
fi
if [ "$PUSB" ]; then
for USBKEY in ${PUSB[@]}; do
Add_Missing_USB $1 $USBKEY ${TIP%:*} ${TIP##*:}
done
fi
if [ "$SUSB" ]; then
for USBKEY in ${SUSB[@]}; do
Add_Missing_USB $1 $(echo $USBKEY | awk -F \| '{print $1}') ${TIP%:*} ${TIP##*:}
done
fi
if [ "$DUSB" ]; then
for USBKEY in ${DUSB[@]}; do
Add_Missing_USB $1 $(echo $USBKEY | awk -F \| '{print $1}') ${TIP%:*} ${TIP##*:} $(echo $USBKEY | awk -F \| '{print $3}')
done
fi
VMSTATE=$(VMMgr_Launcher status $1 | grep "VM status: running")
done
# finally, delete table before quit
Db_Drop_USB_Table $VMMGR_DB_PATH "USB-$1"
fi
fi