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https://github.com/trezor/trezor-firmware.git
synced 2024-12-23 23:08:14 +00:00
storage: style
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parent
99329fb30d
commit
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@ -10,7 +10,9 @@ class Storage:
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self.lib = c.cdll.LoadLibrary(fname)
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self.flash_size = c.cast(self.lib.FLASH_SIZE, c.POINTER(c.c_uint32))[0]
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self.flash_buffer = c.create_string_buffer(self.flash_size)
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c.cast(self.lib.FLASH_BUFFER, c.POINTER(c.c_void_p))[0] = c.addressof(self.flash_buffer)
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c.cast(self.lib.FLASH_BUFFER, c.POINTER(c.c_void_p))[0] = c.addressof(
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self.flash_buffer
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)
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def init(self, salt: bytes) -> None:
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self.lib.storage_init(0, salt, c.c_uint16(len(salt)))
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@ -31,14 +33,18 @@ class Storage:
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return self.lib.storage_get_pin_rem()
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def change_pin(self, oldpin: int, newpin: int) -> bool:
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return sectrue == self.lib.storage_change_pin(c.c_uint32(oldpin), c.c_uint32(newpin))
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return sectrue == self.lib.storage_change_pin(
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c.c_uint32(oldpin), c.c_uint32(newpin)
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)
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def get(self, key: int) -> bytes:
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val_len = c.c_uint16()
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if sectrue != self.lib.storage_get(c.c_uint16(key), None, 0, c.byref(val_len)):
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raise RuntimeError("Failed to find key in storage.")
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s = c.create_string_buffer(val_len.value)
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if sectrue != self.lib.storage_get(c.c_uint16(key), s, val_len, c.byref(val_len)):
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if sectrue != self.lib.storage_get(
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c.c_uint16(key), s, val_len, c.byref(val_len)
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):
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raise RuntimeError("Failed to get value from storage.")
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return s.raw
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@ -47,7 +53,9 @@ class Storage:
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raise RuntimeError("Failed to set value in storage.")
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def set_counter(self, key: int, count: int) -> bool:
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return sectrue == self.lib.storage_set_counter(c.c_uint16(key), c.c_uint32(count))
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return sectrue == self.lib.storage_set_counter(
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c.c_uint16(key), c.c_uint32(count)
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)
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def next_counter(self, key: int) -> int:
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count = c.c_uint32()
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@ -61,7 +69,10 @@ class Storage:
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def _dump(self) -> bytes:
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# return just sectors 4 and 16 of the whole flash
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return [self.flash_buffer[0x010000:0x010000 + 0x10000], self.flash_buffer[0x110000:0x110000 + 0x10000]]
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return [
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self.flash_buffer[0x010000 : 0x010000 + 0x10000],
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self.flash_buffer[0x110000 : 0x110000 + 0x10000],
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]
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def _get_flash_buffer(self) -> bytes:
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return bytes(self.flash_buffer)
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@ -4,13 +4,15 @@ import os
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sectrue = -1431655766 # 0xAAAAAAAAA
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fname = os.path.join(os.path.dirname(__file__), "libtrezor-storage0.so")
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class Storage:
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class Storage:
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def __init__(self) -> None:
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self.lib = c.cdll.LoadLibrary(fname)
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self.flash_size = c.cast(self.lib.FLASH_SIZE, c.POINTER(c.c_uint32))[0]
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self.flash_buffer = c.create_string_buffer(self.flash_size)
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c.cast(self.lib.FLASH_BUFFER, c.POINTER(c.c_void_p))[0] = c.addressof(self.flash_buffer)
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c.cast(self.lib.FLASH_BUFFER, c.POINTER(c.c_void_p))[0] = c.addressof(
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self.flash_buffer
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)
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def init(self) -> None:
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self.lib.storage_init(0)
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@ -28,12 +30,16 @@ class Storage:
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return sectrue == self.lib.storage_has_pin()
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def change_pin(self, oldpin: int, newpin: int) -> bool:
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return sectrue == self.lib.storage_change_pin(c.c_uint32(oldpin), c.c_uint32(newpin))
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return sectrue == self.lib.storage_change_pin(
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c.c_uint32(oldpin), c.c_uint32(newpin)
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)
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def get(self, key: int) -> bytes:
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val_ptr = c.c_void_p()
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val_len = c.c_uint16()
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if sectrue != self.lib.storage_get(c.c_uint16(key), c.byref(val_ptr), c.byref(val_len)):
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if sectrue != self.lib.storage_get(
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c.c_uint16(key), c.byref(val_ptr), c.byref(val_len)
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):
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raise RuntimeError("Failed to find key in storage.")
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return c.string_at(val_ptr, size=val_len.value)
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@ -43,7 +49,10 @@ class Storage:
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def _dump(self) -> bytes:
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# return just sectors 4 and 16 of the whole flash
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return [self.flash_buffer[0x010000:0x010000 + 0x10000], self.flash_buffer[0x110000:0x110000 + 0x10000]]
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return [
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self.flash_buffer[0x010000 : 0x010000 + 0x10000],
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self.flash_buffer[0x110000 : 0x110000 + 0x10000],
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]
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def _get_flash_buffer(self) -> bytes:
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return bytes(self.flash_buffer)
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@ -1,7 +1,7 @@
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import pytest
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from . import common
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from ..src import consts, norcow
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from . import common
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def test_norcow_set():
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@ -1,18 +1,22 @@
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#!/usr/bin/env python3
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from c.storage import Storage as StorageC
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from c0.storage import Storage as StorageC0
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from python.src.storage import Storage as StoragePy
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from hashlib import sha256
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from c.storage import Storage as StorageC
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from python.src.storage import Storage as StoragePy
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def hash(data):
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return sha256(data).hexdigest()[:16]
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# Strings for testing ChaCha20 encryption.
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test_strings = [b"Short string.", b"", b"Although ChaCha20 is a stream cipher, it operates on blocks of 64 bytes. This string is over 152 bytes in length so that we test multi-block encryption.", b"This string is exactly 64 bytes long, that is exactly one block."]
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test_strings = [
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b"Short string.",
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b"",
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b"Although ChaCha20 is a stream cipher, it operates on blocks of 64 bytes. This string is over 152 bytes in length so that we test multi-block encryption.",
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b"This string is exactly 64 bytes long, that is exactly one block.",
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]
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# Unique device ID for testing.
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uid = b"\x67\xce\x6a\xe8\xf7\x9b\x73\x96\x83\x88\x21\x5e"
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@ -24,12 +28,12 @@ a = []
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for s in [sc, sp]:
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print(s.__class__)
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s.init(uid)
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assert s.unlock(3) == False
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assert s.unlock(1) == True
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s.set(0xbeef, b"hello")
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s.set(0x03fe, b"world!")
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s.set(0xbeef, b"satoshi")
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s.set(0xbeef, b"Satoshi")
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assert s.unlock(3) is False
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assert s.unlock(1) is True
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s.set(0xBEEF, b"hello")
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s.set(0x03FE, b"world!")
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s.set(0xBEEF, b"satoshi")
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s.set(0xBEEF, b"Satoshi")
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for value in test_strings:
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s.set(0x0301, value)
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assert s.get(0x0301) == value
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@ -2,3 +2,4 @@
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^\./core/src/
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^\./crypto/
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^\./legacy/
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^\./storage/
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