143 lines
4.3 KiB
Bash
143 lines
4.3 KiB
Bash
#!/bin/bash -e
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set -x
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#set -euo pipefail
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GADGET_NAME="g1"
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LANGUAGE="0x409" # English
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CONFIGFS="/sys/kernel/config/usb_gadget/"
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ID_VENDOR="0x1d6b"
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ID_PRODUCT="0x0104"
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SERIAL="$(grep Serial /proc/cpuinfo | sed 's/Serial\s*: 0000\(\w*\)/\1/')"
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MAC="$(echo ${SERIAL} | sed 's/\(\w\w\)/:\1/g' | cut -b 2-)"
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MAC_HOST="12$(echo ${MAC} | cut -b 3-)"
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MAC_DEV="02$(echo ${MAC} | cut -b 3-)"
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if [[ $EUID -ne 0 ]]; then
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echo "This script must be run as root"
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exit 1
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fi
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if [ ! -d $CONFIGFS ]; then
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modprobe libcomposite
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fi
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# Enter ConfigFS
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cd $CONFIGFS
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# Cleaning
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#echo "Cleaning up existing gadget"
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#echo "Stopping getty"
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#systemctl stop getty@ttyGS0.service
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#echo "Removing config-level functions"
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find ./$GADGET_NAME/configs/*/* -maxdepth 0 -type l -exec rm {} \; || true
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#echo "Removing config-level strings"
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find ./$GADGET_NAME/configs/*/strings/* -maxdepth 0 -type d -exec rmdir {} \; || true
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#echo "Removing config-level OS descriptors"
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find ./$GADGET_NAME/os_desc/* -maxdepth 0 -type l -exec rm {} \; || true
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#echo "Removing gadget-level functions"
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find ./$GADGET_NAME/functions/* -maxdepth 0 -type d -exec rmdir {} \; || true
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#echo "Removing gadget-level strings"
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find ./$GADGET_NAME/strings/* -maxdepth 0 -type d -exec rmdir {} \; || true
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#echo "Removing gadget-level configs"
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find ./$GADGET_NAME/configs/* -maxdepth 0 -type d -exec rmdir {} \; || true
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#echo "Removing gadget"
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rmdir ./$GADGET_NAME || true
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#echo "Starting getty"
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#systemctl start getty@ttyGS0.service
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mkdir ./$GADGET_NAME && cd ./$GADGET_NAME
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# Basic info
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echo $ID_VENDOR > idVendor # Linux Foundation
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echo $ID_PRODUCT > idProduct # Multifunction Composite Gadget
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echo 0x0100 > bcdDevice # v1.0.0
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echo 0x0200 > bcdUSB # USB 2.0
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#echo "Configuring gadget as composite device"
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# https://msdn.microsoft.com/en-us/library/windows/hardware/ff540054(v=vs.85).aspx
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echo 0xEF > bDeviceClass
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echo 0x02 > bDeviceSubClass
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echo 0x01 > bDeviceProtocol
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#echo "Configuring OS descriptors"
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# https://msdn.microsoft.com/en-us/library/hh881271.aspx
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# OS descriptors
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# WIndows extensions to force config
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echo 1 > os_desc/use
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echo 0xcd > os_desc/b_vendor_code
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echo MSFT100 > os_desc/qw_sign
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mkdir -p strings/$LANGUAGE
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echo "7777777" > strings/$LANGUAGE/serialnumber
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echo "eXander" > strings/$LANGUAGE/manufacturer
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echo "exander's Gadget" > strings/$LANGUAGE/product
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# Config #1 for OSX / Linux
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mkdir -p configs/c.1/strings/$LANGUAGE
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echo 250 > configs/c.1/MaxPower
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echo "Config 1" > configs/c.1/strings/$LANGUAGE/configuration
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mkdir -p functions/acm.usb0 # serial
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mkdir -p functions/rndis.usb0 # network Flippin' Windows
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#mkdir -p functions/ecm.usb0 # OSX / Linux
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mkdir -p functions/hid.usb0 # keyboard
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# https://msdn.microsoft.com/en-us/windows/hardware/gg463179.aspx
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echo RNDIS > functions/rndis.usb0/os_desc/interface.rndis/compatible_id
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echo 5162001 > functions/rndis.usb0/os_desc/interface.rndis/sub_compatible_id
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echo $MAC_HOST > functions/rndis.usb0/host_addr
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echo $MAC_DEV > functions/rndis.usb0/dev_addr
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#echo $MAC_HOST > functions/ecm.usb0/host_addr
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#echo $MAC_DEV > functions/ecm.usb0/dev_addr
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# Set up the rndis device only first
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ln -s functions/rndis.usb0 configs/c.1
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# Tell Windows to use config #2
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ln -s configs/c.1 os_desc
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#ln -s configs/c.1 os_desc/c.1
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# Show Windows the RNDIS device with
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# bDeviceClass 0x02
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# bDeviceSubClass 0x02
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ls /sys/class/udc/ > UDC
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# Give it time to install
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sleep 5
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# Yank it back
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echo "" > UDC
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# Setup keyboard
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echo 1 > functions/hid.usb0/protocol
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echo 1 > functions/hid.usb0/subclass
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echo 8 > functions/hid.usb0/report_length
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echo -ne \\x05\\x01\\x09\\x06\\xa1\\x01\\x05\\x07\\x19\\xe0\\x29\\xe7\\x15\\x00\\x25\\x01\\x75\\x01\\x95\\x08\\x81\\x02\\x95\\x01\\x75\\x08\\x81\\x03\\x95\\x05\\x75\\x01\\x05\\x08\\x19\\x01\\x29\\x05\\x91\\x02\\x95\\x01\\x75\\x03\\x91\\x03\\x95\\x06\\x75\\x08\\x15\\x00\\x25\\x65\\x05\\x07\\x19\\x00\\x29\\x65\\x81\\x00\\xc0 > functions/hid.usb0/report_desc
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ln -s functions/acm.usb0 configs/c.1/
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#ln -s functions/ecm.usb0 configs/c.1/
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ln -s functions/hid.usb0 configs/c.1/
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# Reset bDeviceClass to 0x00
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# This is essential to make it work in Windows 10
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# Basically forces it to use device information
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# in the descriptors versus assuming a particular class.
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echo "0x00" > bDeviceClass
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# Re-attach the gadget
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udevadm settle -t 5 || :
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ls /sys/class/udc/ > UDC
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# BOOM!
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