Pavol Rusnak
7 years ago
parent
4c8d3e4a35
commit
2d7c6b0c34
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#include STM32_HAL_H
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// ### from main.c
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void __attribute__((noreturn)) __fatal_error(const char *msg) {
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for (volatile uint32_t delay = 0; delay < 10000000; delay++) {
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}
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// TODO: printf("FATAL ERROR: %s\n", msg);
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for (;;) {
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__WFI();
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}
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}
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void nlr_jump_fail(void *val) {
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__fatal_error("FATAL: uncaught exception");
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}
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// ### from stm32_it.c
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void SysTick_Handler(void) {
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extern uint32_t uwTick;
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uwTick += 1;
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SysTick->CTRL;
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}
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// ###
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@ -0,0 +1,38 @@
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#!/usr/bin/env python3
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import sys
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import struct
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# bootloader header specification: https://github.com/trezor/trezor-core/blob/master/docs/bootloader.md#bootloader-header
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def check_bootloader(filename):
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data = open(filename, 'rb').read()
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hdr = struct.unpack('<4sIIIBBBBB64s171s', data[:256])
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code = data[256:]
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magic, hdrlen, expiry, codelen, vmajor, vminor, vpatch, vbuild, sigidx, sig, reserved = hdr
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sigidx = tuple([ i + 1 for i in range(8) if sigidx & (1 << i) ])
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print('magic :', magic)
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assert magic == b'TRZB'
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print('hdrlen :', hdrlen)
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assert hdrlen == 256
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print('expiry :', expiry)
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print('codelen :', codelen)
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print('vmajor :', vmajor)
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print('vminor :', vminor)
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print('vpatch :', vpatch)
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print('vbuild :', vbuild)
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print('sigidx :', sigidx)
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print('sig :', sig)
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assert reserved == 171 * b'\x00'
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assert codelen == 64*1024
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assert codelen == len(code)
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def main():
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if len(sys.argv) < 2:
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print('Usage: check_bootloader bootloader.bin')
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return 1
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fn = sys.argv[1]
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check_bootloader(fn)
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main()
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@ -0,0 +1,17 @@
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#!/usr/bin/env python3
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import sys
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def process_firmware(filename):
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data = open(filename, 'rb').read()
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def main():
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if len(sys.argv) < 2:
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print('Usage: check_firmware firmware.bin')
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return 1
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fn = sys.argv[1]
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process_firmware(fn)
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main()
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