Pavol Rusnak
11 years ago
parent
8e7bee7043
commit
b018f9e6fe
@ -0,0 +1,8 @@
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NAME = speed
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OBJS += aux.o
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OBJS += ecdsa.o
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OBJS += rand.o
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OBJS += secp256k1.o
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OBJS += sha256.o
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include Makefile.include
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@ -0,0 +1,54 @@
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PREFIX ?= arm-none-eabi
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CC = $(PREFIX)-gcc
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LD = $(PREFIX)-gcc
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OBJCOPY = $(PREFIX)-objcopy
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OBJDUMP = $(PREFIX)-objdump
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FLASH = $(shell which st-flash)
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TOOLCHAIN_DIR ?= ../../../STM/libopencm3
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CFLAGS += -Os -g \
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-Wall -Wextra -Wimplicit-function-declaration -Wredundant-decls -Wstrict-prototypes -Wundef -Wshadow \
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-fno-common -mcpu=cortex-m3 -mthumb -msoft-float -MD -DSTM32F2 \
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-I$(TOOLCHAIN_DIR)/include
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LDSCRIPT ?= $(NAME).ld
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LDFLAGS += --static -Wl,--start-group -lc -lgcc -lnosys -Wl,--end-group \
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-L$(TOOLCHAIN_DIR)/lib -L$(TOOLCHAIN_DIR)/lib/stm32/f2 \
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-T$(LDSCRIPT) -nostartfiles -Wl,--gc-sections \
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-mthumb -march=armv7 -mfix-cortex-m3-ldrd -msoft-float
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OBJS += $(NAME).o
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all: images
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images: $(NAME).bin
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flash: $(NAME).bin
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$(FLASH) write $(NAME).bin 0x8000000
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$(NAME).bin: $(NAME).elf
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$(OBJCOPY) -Obinary $(NAME).elf $(NAME).bin
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$(NAME).hex: $(NAME).elf
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$(OBJCOPY) -Oihex $(NAME).elf $(NAME).hex
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$(NAME).srec: $(NAME).elf
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$(OBJCOPY) -Osrec $(NAME).elf $(NAME).srec
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$(NAME).list: $(NAME).elf
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$(OBJDUMP) -S $(NAME).elf > $(NAME).list
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$(NAME).elf: $(OBJS) $(LDSCRIPT) $(TOOLCHAIN_DIR)/lib/libopencm3_stm32f2.a
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$(LD) -o $(NAME).elf $(OBJS) -lopencm3_stm32f2 $(LDFLAGS)
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%.o: %.c Makefile
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$(CC) $(CFLAGS) -o $@ -c $<
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clean:
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rm -f *.o
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rm -f *.d
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rm -f *.elf
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rm -f *.bin
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rm -f *.hex
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rm -f *.srec
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rm -f *.list
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rm -f usb.pb*
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@ -0,0 +1 @@
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../aux.c
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@ -0,0 +1 @@
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../aux.h
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@ -0,0 +1 @@
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../ecdsa.c
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@ -0,0 +1 @@
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../ecdsa.h
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@ -0,0 +1,16 @@
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#include <libopencm3/stm32/f2/rng.h>
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#include "rand.h"
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void init_rand(void) {
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}
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uint32_t random32(void) {
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static uint32_t last = 0, new = 0;
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while (new == last) {
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if (((RNG_SR & (RNG_SR_SEIS | RNG_SR_CEIS)) == 0) && ((RNG_SR & RNG_SR_DRDY) > 0)) {
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new = RNG_DR;
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}
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}
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last = new;
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return new;
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}
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@ -0,0 +1 @@
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../rand.h
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@ -0,0 +1 @@
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../secp256k1.c
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@ -0,0 +1 @@
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../secp256k1.h
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@ -0,0 +1 @@
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../sha256.c
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@ -0,0 +1 @@
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../sha256.h
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@ -0,0 +1,270 @@
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/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2010 Gareth McMullin <gareth@blacksphere.co.nz>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <libopencm3/stm32/f2/rcc.h>
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#include <libopencm3/stm32/f2/gpio.h>
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#include <libopencm3/usb/usbd.h>
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#include <libopencm3/usb/cdc.h>
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#include <libopencm3/cm3/scb.h>
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#include "rand.h"
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#include "ecdsa.h"
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static const struct usb_device_descriptor dev = {
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.bLength = USB_DT_DEVICE_SIZE,
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.bDescriptorType = USB_DT_DEVICE,
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.bcdUSB = 0x0200,
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.bDeviceClass = USB_CLASS_CDC,
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.bDeviceSubClass = 0,
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.bDeviceProtocol = 0,
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.bMaxPacketSize0 = 64,
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.idVendor = 0x0483,
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.idProduct = 0x5740,
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.bcdDevice = 0x0200,
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.iManufacturer = 1,
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.iProduct = 2,
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.iSerialNumber = 3,
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.bNumConfigurations = 1,
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};
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/*
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* This notification endpoint isn't implemented. According to CDC spec it's
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* optional, but its absence causes a NULL pointer dereference in the
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* Linux cdc_acm driver.
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*/
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static const struct usb_endpoint_descriptor comm_endp[] = {{
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = 0x83,
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.bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
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.wMaxPacketSize = 16,
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.bInterval = 255,
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}};
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static const struct usb_endpoint_descriptor data_endp[] = {{
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = 0x01,
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.bmAttributes = USB_ENDPOINT_ATTR_BULK,
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.wMaxPacketSize = 64,
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.bInterval = 1,
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}, {
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = 0x82,
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.bmAttributes = USB_ENDPOINT_ATTR_BULK,
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.wMaxPacketSize = 64,
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.bInterval = 1,
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}};
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static const struct {
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struct usb_cdc_header_descriptor header;
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struct usb_cdc_call_management_descriptor call_mgmt;
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struct usb_cdc_acm_descriptor acm;
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struct usb_cdc_union_descriptor cdc_union;
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} __attribute__((packed)) cdcacm_functional_descriptors = {
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.header = {
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.bFunctionLength = sizeof(struct usb_cdc_header_descriptor),
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.bDescriptorType = CS_INTERFACE,
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.bDescriptorSubtype = USB_CDC_TYPE_HEADER,
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.bcdCDC = 0x0110,
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},
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.call_mgmt = {
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.bFunctionLength =
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sizeof(struct usb_cdc_call_management_descriptor),
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.bDescriptorType = CS_INTERFACE,
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.bDescriptorSubtype = USB_CDC_TYPE_CALL_MANAGEMENT,
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.bmCapabilities = 0,
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.bDataInterface = 1,
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},
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.acm = {
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.bFunctionLength = sizeof(struct usb_cdc_acm_descriptor),
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.bDescriptorType = CS_INTERFACE,
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.bDescriptorSubtype = USB_CDC_TYPE_ACM,
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.bmCapabilities = 0,
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},
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.cdc_union = {
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.bFunctionLength = sizeof(struct usb_cdc_union_descriptor),
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.bDescriptorType = CS_INTERFACE,
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.bDescriptorSubtype = USB_CDC_TYPE_UNION,
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.bControlInterface = 0,
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.bSubordinateInterface0 = 1,
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}
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};
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static const struct usb_interface_descriptor comm_iface[] = {{
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.bLength = USB_DT_INTERFACE_SIZE,
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.bDescriptorType = USB_DT_INTERFACE,
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.bInterfaceNumber = 0,
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.bAlternateSetting = 0,
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.bNumEndpoints = 1,
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.bInterfaceClass = USB_CLASS_CDC,
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.bInterfaceSubClass = USB_CDC_SUBCLASS_ACM,
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.bInterfaceProtocol = USB_CDC_PROTOCOL_AT,
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.iInterface = 0,
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.endpoint = comm_endp,
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.extra = &cdcacm_functional_descriptors,
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.extralen = sizeof(cdcacm_functional_descriptors)
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}};
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static const struct usb_interface_descriptor data_iface[] = {{
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.bLength = USB_DT_INTERFACE_SIZE,
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.bDescriptorType = USB_DT_INTERFACE,
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.bInterfaceNumber = 1,
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.bAlternateSetting = 0,
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.bNumEndpoints = 2,
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.bInterfaceClass = USB_CLASS_DATA,
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.bInterfaceSubClass = 0,
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.bInterfaceProtocol = 0,
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.iInterface = 0,
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.endpoint = data_endp,
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}};
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static const struct usb_interface ifaces[] = {{
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.num_altsetting = 1,
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.altsetting = comm_iface,
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}, {
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.num_altsetting = 1,
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.altsetting = data_iface,
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}};
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static const struct usb_config_descriptor config = {
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.bLength = USB_DT_CONFIGURATION_SIZE,
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.bDescriptorType = USB_DT_CONFIGURATION,
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.wTotalLength = 0,
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.bNumInterfaces = 2,
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.bConfigurationValue = 1,
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.iConfiguration = 0,
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.bmAttributes = 0x80,
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.bMaxPower = 0x32,
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.interface = ifaces,
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};
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static const char *usb_strings[] = {
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"Black Sphere Technologies",
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"CDC-ACM Demo",
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"DEMO",
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};
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/* Buffer to be used for control requests. */
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uint8_t usbd_control_buffer[128];
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static int cdcacm_control_request(usbd_device *usbd_dev, struct usb_setup_data *req, uint8_t **buf,
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uint16_t *len, void (**complete)(usbd_device *usbd_dev, struct usb_setup_data *req))
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{
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(void)complete;
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(void)buf;
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(void)usbd_dev;
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switch (req->bRequest) {
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case USB_CDC_REQ_SET_CONTROL_LINE_STATE: {
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/*
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* This Linux cdc_acm driver requires this to be implemented
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* even though it's optional in the CDC spec, and we don't
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* advertise it in the ACM functional descriptor.
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*/
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return 1;
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}
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case USB_CDC_REQ_SET_LINE_CODING:
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if (*len < sizeof(struct usb_cdc_line_coding))
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return 0;
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return 1;
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}
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return 0;
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}
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void test_sign(void)
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{
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uint8_t sig[70], priv_key[32], msg[256];
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uint32_t sig_len, i, msg_len;
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// random message len between 1 and 256
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msg_len = (random32() & 0xFF) + 1;
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// create random message
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for (i = 0; i < msg_len; i++) {
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msg[i] = random32() & 0xFF;
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}
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// create random privkey
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for (i = 0; i < 32; i++) {
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priv_key[i] = random32() & 0xFF;
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}
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// use our ECDSA signer to sign the message with the key
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for (i = 0; i < 100; i++) {
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ecdsa_sign(priv_key, msg, msg_len, sig, &sig_len);
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}
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}
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static void cdcacm_data_rx_cb(usbd_device *usbd_dev, uint8_t ep)
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{
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(void)ep;
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char buf[64];
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int len = usbd_ep_read_packet(usbd_dev, 0x01, buf, 64);
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if (len) {
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len = sprintf(buf, "Start\r\n");
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usbd_ep_write_packet(usbd_dev, 0x82, buf, len);
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test_sign();
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len = sprintf(buf, "Done!\r\n");
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usbd_ep_write_packet(usbd_dev, 0x82, buf, len);
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}
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}
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static void cdcacm_set_config(usbd_device *usbd_dev, uint16_t wValue)
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{
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(void)wValue;
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usbd_ep_setup(usbd_dev, 0x01, USB_ENDPOINT_ATTR_BULK, 64, cdcacm_data_rx_cb);
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usbd_ep_setup(usbd_dev, 0x82, USB_ENDPOINT_ATTR_BULK, 64, NULL);
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usbd_ep_setup(usbd_dev, 0x83, USB_ENDPOINT_ATTR_INTERRUPT, 16, NULL);
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usbd_register_control_callback(
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usbd_dev,
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USB_REQ_TYPE_CLASS | USB_REQ_TYPE_INTERFACE,
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USB_REQ_TYPE_TYPE | USB_REQ_TYPE_RECIPIENT,
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cdcacm_control_request);
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}
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int main(void)
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{
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usbd_device *usbd_dev;
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rcc_clock_setup_hse_3v3(&hse_8mhz_3v3[CLOCK_3V3_120MHZ]);
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rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPAEN);
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rcc_peripheral_enable_clock(&RCC_AHB2ENR, RCC_AHB2ENR_OTGFSEN);
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gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO9 | GPIO11 | GPIO12);
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gpio_set_af(GPIOA, GPIO_AF10, GPIO9 | GPIO11 | GPIO12);
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usbd_dev = usbd_init(&otgfs_usb_driver, &dev, &config, usb_strings, 3, usbd_control_buffer, sizeof(usbd_control_buffer));
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usbd_register_set_config_callback(usbd_dev, cdcacm_set_config);
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while (1)
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usbd_poll(usbd_dev);
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}
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@ -0,0 +1,9 @@
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/* STM32F205RE - 512K Flash, 128K RAM */
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MEMORY
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{
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rom (rx) : ORIGIN = 0x08000000, LENGTH = 512K
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ram (rwx) : ORIGIN = 0x20000000, LENGTH = 128K
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}
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INCLUDE libopencm3_stm32f2.ld
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Loading…
Reference in new issue