Merge pull request #131 from rgerganov/hidg

Add support for hidg devices on Linux
pull/186/head
Conor Patrick 2019-04-23 20:22:33 -04:00 zatwierdzone przez GitHub
commit 494e856198
Nie znaleziono w bazie danych klucza dla tego podpisu
ID klucza GPG: 4AEE18F83AFDEB23
4 zmienionych plików z 148 dodań i 13 usunięć

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@ -7,6 +7,8 @@
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdbool.h>
#include <unistd.h>
#include "cbor.h"
#include "device.h"
@ -19,10 +21,44 @@
#if !defined(TEST)
int main()
bool use_udp = true;
void usage(const char * cmd)
{
fprintf(stderr, "Usage: %s [-b udp|hidg]\n", cmd);
fprintf(stderr, " -b backing implementation: udp(default) or hidg\n");
exit(1);
}
int main(int argc, char *argv[])
{
uint8_t hidmsg[64];
uint32_t t1 = 0;
int opt;
while ((opt = getopt(argc, argv, "b:")) != -1)
{
switch (opt)
{
case 'b':
if (strcmp("udp", optarg) == 0)
{
use_udp = true;
}
else if (strcmp("hidg", optarg) == 0)
{
use_udp = false;
}
else
{
usage(argv[0]);
}
break;
default:
usage(argv[0]);
break;
}
}
set_logging_mask(
/*0*/

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@ -7,6 +7,7 @@
#ifndef SRC_APP_H_
#define SRC_APP_H_
#include <stdbool.h>
#define USING_DEV_BOARD
@ -20,6 +21,8 @@
void printing_init();
extern bool use_udp;
// 0xRRGGBB
#define LED_INIT_VALUE 0x000800
#define LED_WINK_VALUE 0x000008

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@ -15,6 +15,7 @@
#include <string.h>
#include <unistd.h>
#include <signal.h>
#include <fcntl.h>
#include "device.h"
#include "cbor.h"
@ -118,12 +119,6 @@ void udp_send(int fd, uint8_t * buf, int size)
}
}
void udp_close(int fd)
{
close(fd);
}
uint32_t millis()
{
@ -134,18 +129,42 @@ uint32_t millis()
}
static int serverfd = 0;
static int fd = 0;
void usbhid_init()
{
// just bridge to UDP for now for pure software testing
serverfd = udp_server();
if (use_udp)
{
fd = udp_server();
}
else
{
fd = open("/dev/hidg0", O_RDWR);
if (fd < 0)
{
perror("hidg open");
exit(1);
}
}
}
// Receive 64 byte USB HID message, don't block, return size of packet, return 0 if nothing
int usbhid_recv(uint8_t * msg)
{
int l = udp_recv(serverfd, msg, HID_MESSAGE_SIZE);
int l = 0;
if (use_udp)
{
l = udp_recv(fd, msg, HID_MESSAGE_SIZE);
}
else
{
l = read(fd, msg, HID_MESSAGE_SIZE); /* Flawfinder: ignore */
if (l < 0)
{
perror("hidg read");
exit(1);
}
}
uint8_t magic_cmd[] = "\xac\x10\x52\xca\x95\xe5\x69\xde\x69\xe0\x2e\xbf"
"\xf3\x33\x48\x5f\x13\xf9\xb2\xda\x34\xc5\xa8\xa3"
"\x40\x52\x66\x97\xa9\xab\x2e\x0b\x39\x4d\x8d\x04"
@ -166,12 +185,23 @@ int usbhid_recv(uint8_t * msg)
// Send 64 byte USB HID message
void usbhid_send(uint8_t * msg)
{
udp_send(serverfd, msg, HID_MESSAGE_SIZE);
if (use_udp)
{
udp_send(fd, msg, HID_MESSAGE_SIZE);
}
else
{
if (write(fd, msg, HID_MESSAGE_SIZE) < 0)
{
perror("hidg write");
exit(1);
}
}
}
void usbhid_close()
{
udp_close(serverfd);
close(fd);
}
void int_handler(int i)
@ -185,6 +215,7 @@ void device_init()
{
signal(SIGINT, int_handler);
printf1(TAG_GREEN, "Using %s backing\n", use_udp ? "UDP" : "hidg");
usbhid_init();
authenticator_initialize();

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@ -0,0 +1,65 @@
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