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Add Makefile for installing a HID gadget

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The Makefile has targets for building, installing and uninstalling a HID
gadget which acts as FIDO2 authenticator.

Tested on Ubuntu 18.04 but should work on other distros as well. The
only assumption being made is that kernel source is available at
/usr/src/linux-source-$(KERNEL_VERSION).tar.bz2. A possible improvement
would be to have a configure script which finds the correct kernel
source archive.
This commit is contained in:
Nicolas Stalder 2019-03-07 01:24:43 +01:00 committed by Radoslav Gerganov
parent 955d4f76ef
commit 6a288243c1
1 changed files with 65 additions and 0 deletions
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65
tools/gadgetfs/Makefile Normal file
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TOP := $(shell dirname $(realpath $(lastword $(MAKEFILE_LIST))))
KERNEL_FULL_VERSION := $(shell uname -r)
KERNEL_VERSION := $(shell uname -r | grep -o "^[^-]*")
KERNEL_MAJOR := $(shell uname -r | cut -d. -f1)
KERNEL_MINOR := $(shell uname -r | cut -d. -f2)
MANUFACTURER = "Solo"
SERIAL = "1234567890"
IDVENDOR = "0x0483"
IDPRODUCT = "0xa2ca"
PRODUCT = "Solo Software Authenticator"
CONFIGFS = /sys/kernel/config
CONFIGFS_FIDO2 = $(CONFIGFS)/usb_gadget/fido2
obj-m := dummy_hcd.o
KVERSION := $(shell uname -r)
SHELL := /bin/bash
all: dummy_hcd.ko
install: dummy_hcd.ko
modprobe libcomposite
insmod dummy_hcd.ko
mkdir -p $(CONFIGFS_FIDO2)
mkdir -p $(CONFIGFS_FIDO2)/configs/c.1
mkdir -p $(CONFIGFS_FIDO2)/functions/hid.usb0
echo 0 > $(CONFIGFS_FIDO2)/functions/hid.usb0/protocol
echo 0 > $(CONFIGFS_FIDO2)/functions/hid.usb0/subclass
echo 64 > $(CONFIGFS_FIDO2)/functions/hid.usb0/report_length
echo -ne "\x06\xd0\xf1\x09\x01\xa1\x01\x09\x20\x15\x00\x26\xff\x00\x75\x08\x95\x40\x81\x02\x09\x21\x15\x00\x26\xff\x00\x75\x08\x95\x40\x91\x02\xc0" > $(CONFIGFS_FIDO2)/functions/hid.usb0/report_desc
mkdir $(CONFIGFS_FIDO2)/strings/0x409
mkdir $(CONFIGFS_FIDO2)/configs/c.1/strings/0x409
echo $(IDPRODUCT) > $(CONFIGFS_FIDO2)/idProduct
echo $(IDVENDOR) > $(CONFIGFS_FIDO2)/idVendor
echo $(SERIAL) > $(CONFIGFS_FIDO2)/strings/0x409/serialnumber
echo $(MANUFACTURER) > $(CONFIGFS_FIDO2)/strings/0x409/manufacturer
echo $(PRODUCT) > $(CONFIGFS_FIDO2)/strings/0x409/product
echo "Configuration 1" > $(CONFIGFS_FIDO2)/configs/c.1/strings/0x409/configuration
echo 120 > $(CONFIGFS_FIDO2)/configs/c.1/MaxPower
ln -s $(CONFIGFS_FIDO2)/functions/hid.usb0 $(CONFIGFS_FIDO2)/configs/c.1
echo "dummy_udc.0" > $(CONFIGFS_FIDO2)/UDC
uninstall:
echo "" > $(CONFIGFS_FIDO2)/UDC
rm $(CONFIGFS_FIDO2)/configs/c.1/hid.usb0
rmdir $(CONFIGFS_FIDO2)/configs/c.1/strings/0x409
rmdir $(CONFIGFS_FIDO2)/configs/c.1
rmdir $(CONFIGFS_FIDO2)/functions/hid.usb0
rmdir $(CONFIGFS_FIDO2)/strings/0x409
rmdir $(CONFIGFS_FIDO2)
rmmod dummy_hcd.ko
dummy_hcd.ko: dummy_hcd.c
$(MAKE) -C /lib/modules/$(KERNEL_FULL_VERSION)/build M=$(TOP) modules
dummy_hcd.c: /usr/src/linux-source-$(KERNEL_VERSION).tar.bz2
tar -xvf $^ linux-source-$(KERNEL_VERSION)/drivers/usb/gadget/udc/dummy_hcd.c
cp linux-source-$(KERNEL_VERSION)/drivers/usb/gadget/udc/dummy_hcd.c $@
clean:
$(MAKE) -C /lib/modules/$(KERNEL_FULL_VERSION)/build M=$(TOP) clean
rm -rf linux-source-$(KERNEL_VERSION)
rm -f dummy_hcd.c