kopia lustrzana https://github.com/conorpp/u2f-zero
187 wiersze
4.8 KiB
C
187 wiersze
4.8 KiB
C
/*
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* Copyright (c) 2016, Conor Patrick
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef APP_H_
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#define APP_H_
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#include <SI_EFM8UB1_Register_Enums.h>
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#include <stdarg.h>
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#include "u2f_hid.h"
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// application settings
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#define U2F_ATTESTATION_KEY_SLOT 15
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#define U2F_MASTER_KEY_SLOT 1
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#define U2F_TEMP_KEY_SLOT 2
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// Comment these out to fit firmware with a bootloader.
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#define U2F_SUPPORT_WINK
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#define U2F_SUPPORT_HID_LOCK
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#define U2F_SUPPORT_RNG_CUSTOM
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#define U2F_SUPPORT_SEED_CUSTOM
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// Uncomment this to make configuration firmware
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//#define ATECC_SETUP_DEVICE
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//#define U2F_PRINT
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//#define U2F_BLINK_ERRORS
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// efm8ub1 application eeprom memory mappings
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#define U2F_KEY_HEADER_ADDR 0xF800
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#define U2F_EEPROM_CONFIG (U2F_KEY_HEADER_ADDR + 128)
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#define U2F_EEPROM_APP_IDS (U2F_EEPROM_CONFIG + 64)
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#if ((U2F_ATTESTATION_KEY_SLOT * 32) > 768)
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#error "not enough eeprom"
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#endif
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// {blue(0), green(0x5a), red(0)}
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#define U2F_DEFAULT_BRIGHTNESS 90
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#define U2F_COLOR 0x001300
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#define U2F_DEFAULT_COLOR_PRIME 0x130000
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#define U2F_DEFAULT_COLOR_ERROR 0x000038
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#define U2F_DEFAULT_COLOR_INPUT 0x000603
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#define U2F_DEFAULT_COLOR_INPUT_SUCCESS 0x251200
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#define U2F_COLOR_WINK 0x120000
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#define U2F_DEFAULT_COLOR_WINK_OUT_OF_SPACE 0x030312
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#define U2F_DEFAULT_COLOR_PERIOD 20
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typedef enum
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{
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APP_NOTHING = 0,
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APP_HID_MSG,
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APP_WINK,
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_APP_WINK,
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}
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APP_STATE;
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typedef enum
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{
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ERROR_NOTHING = 0,
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ERROR_I2C_ERRORS_EXCEEDED = 2,
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ERROR_READ_TRUNCATED = 6,
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ERROR_ATECC_VERIFY = 0x01,
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ERROR_ATECC_PARSE = 0x03,
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ERROR_ATECC_FAULT = 0x05,
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ERROR_ATECC_EXECUTION = 0x0f,
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ERROR_ATECC_WAKE = 0x11,
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ERROR_ATECC_WATCHDOG = 0xee,
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ERROR_ATECC_CRC = 0xff,
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ERROR_I2C_CRC = 0x15,
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ERROR_SEQ_EXCEEDED = 0x12,
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ERROR_BAD_KEY_STORE = 0x13,
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ERROR_USB_WRITE = 0x14,
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ERROR_I2C_BAD_LEN = 0x16,
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ERROR_HID_BUFFER_FULL = 0x17,
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ERROR_HID_INVALID_CMD = 0x18,
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ERROR_DAMN_WATCHDOG = 0x19,
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ERROR_OUT_OF_CIDS = 0x20,
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ERROR_I2C_RESTART = 0x21,
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}
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APP_ERROR_CODE;
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struct APP_DATA
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{
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// must be at least 70 bytes
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uint8_t tmp[70];
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};
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#define U2F_CONFIG_GET_SERIAL_NUM 0x80
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#define U2F_CONFIG_IS_BUILD 0x81
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#define U2F_CONFIG_IS_CONFIGURED 0x82
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#define U2F_CONFIG_LOCK 0x83
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#define U2F_CONFIG_GENKEY 0x84
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#define U2F_CONFIG_LOAD_TRANS_KEY 0x85
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#define U2F_CONFIG_LOAD_WRITE_KEY 0x86
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#define U2F_CONFIG_LOAD_ATTEST_KEY 0x87
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#define U2F_CONFIG_BOOTLOADER 0x88
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#define U2F_CONFIG_BOOTLOADER_DESTROY 0x89
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struct config_msg
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{
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uint8_t cmd;
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uint8_t buf[HID_PACKET_SIZE-1];
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};
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extern uint8_t hidmsgbuf[64];
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extern data struct APP_DATA appdata;
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extern code uint8_t WMASK[];
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extern code uint8_t RMASK[];
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void set_app_u2f_hid_msg(struct u2f_hid_msg * msg );
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void set_app_error(APP_ERROR_CODE ec);
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uint8_t get_app_error();
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uint8_t get_app_state();
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void set_app_state(APP_STATE s);
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void rgb(uint8_t r, uint8_t g, uint8_t b);
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#define rgb_hex(c) (rgb((c)&0xff,((c)>>8)&0xff,((c)>>16)&0xff))
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void app_wink(uint32_t color);
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// should be called after initializing eeprom
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void u2f_init();
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#ifdef ATECC_SETUP_DEVICE
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#include "atecc508a.h"
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void atecc_setup_device(struct config_msg * msg);
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void atecc_setup_init(uint8_t * buf);
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void u2f_config_request();
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#define U2F_HID_DISABLE
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#define U2F_DISABLE
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#define u2f_init(x)
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#define u2f_hid_init(x)
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#define u2f_hid_request(x) atecc_setup_device((struct config_msg*)x)
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#define u2f_hid_set_len(x)
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#define u2f_hid_flush(x)
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#define u2f_hid_writeback(x)
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#define u2f_hid_check_timeouts(x)
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#define u2f_wipe_keys(x) 1
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#else
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int8_t u2f_wipe_keys();
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#define atecc_setup_device(x)
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#define atecc_setup_init(x)
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#endif
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#endif /* APP_H_ */
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