DevOps & WebDev

#!/bin/bash
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
# vim: filetype=bash

#   2023-01-28 Pavel Piatruk, piatruk.by

ID=$$

USB_ID=$(basename $DEVPATH)


{
#set|sort 

#ls -la /sys/$DEVPATH

echo bInterfaceClass on ports as follows

grep -H .  /sys$DEVPATH/1*/bInterfaceClass

IC=$( grep -h .  /sys$DEVPATH/*:1.0/bInterfaceClass )

echo "got bInterfaceClass on 1st port $IC"
    echo usb_modeswitch -b $BUSNUM -g $DEVNUM -v 3566 -p 2001

case $IC in
08) 
    echo Storage MODE
    ;;
e0)

    echo "Already RNDIS"
    LOCKFILE=/var/run/brovi.$USB_ID.lock
    if [[ -e $LOCKFILE ]]
    then    
        LOCKFILE_AGE=$(( $(date +%s ) - $(stat  $LOCKFILE -c %Y) )) 
        echo LOCKFILE_AGE=$LOCKFILE_AGE
    fi

    if [[ -n $LOCKFILE_AGE ]] && [[ $LOCKFILE_AGE -lt  10 ]]
    then    echo was switched VERY recently, noop
    else

    set > $LOCKFILE

    CMDS=(
        "usb_modeswitch -b $BUSNUM -g $DEVNUM -v $ID_VENDOR_ID -p $ID_MODEL_ID  -W -R  -w 400 "
        "usb_modeswitch -b $BUSNUM -g $DEVNUM -v $ID_VENDOR_ID -p $ID_MODEL_ID  -W -R "
    )

    i=0

    for CMD in "${CMDS[@]}"
    do
        i=$(($i+1))
        echo "=====STEP$i, run: $CMD"
        $CMD
    done
    fi

    ;;
ff)
    echo Serial Port
    ;;
*)
    echo Unknown mode
    ;;
esac

} | logger -t BROVI

exit 0

ACTION!="add", GOTO="modeswitch_rules_end"
SUBSYSTEM!="usb", GOTO="modeswitch_rules_end"

# All known install partitions are on interface 0
ATTRS{bInterfaceNumber}!="00", GOTO="modeswitch_rules_end"

GOTO="modeswitch_rules_begin"

LABEL="modeswitch_rules_begin"
# Huawei E3372-325
ATTR{idVendor}=="3566", ATTR{idProduct}=="2001", RUN+="/usr/local/bin/brovi_switch %k %p"

LABEL="modeswitch_rules_end"