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143 lines
4.6 KiB
143 lines
4.6 KiB
# This file is part of the Trezor project.
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#
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# Copyright (C) 2012-2019 SatoshiLabs and contributors
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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 version 3
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# as published by the Free Software Foundation.
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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 License along with this library.
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# If not, see <https://www.gnu.org/licenses/lgpl-3.0.html>.
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from collections import defaultdict
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import os
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import subprocess
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import tempfile
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import time
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from trezorlib.debuglink import TrezorClientDebugLink
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from trezorlib.transport import TransportException, get_transport
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BINDIR = os.path.dirname(os.path.abspath(__file__)) + "/emulators"
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ENV = {"SDL_VIDEODRIVER": "dummy"}
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ROOT = os.path.dirname(os.path.abspath(__file__)) + "/../"
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LOCAL_BUILDS = {
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"core": ROOT + "core/build/unix/micropython",
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"legacy": ROOT + "legacy/firmware/trezor.elf",
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}
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BIN_DIR = os.path.dirname(os.path.abspath(__file__)) + "/emulators"
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def check_version(tag, ver_emu):
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if tag.startswith("v") and len(tag.split(".")) == 3:
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assert tag == "v" + ".".join(["%d" % i for i in ver_emu])
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def check_file(gen, tag):
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if tag.startswith("/"):
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filename = tag
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else:
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filename = "%s/trezor-emu-%s-%s" % (BIN_DIR, gen, tag)
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if not os.path.exists(filename):
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raise ValueError(filename + " not found. Do not forget to build firmware.")
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def get_tags():
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files = os.listdir(BIN_DIR)
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if not files:
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raise ValueError(
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"No files found. Use download_emulators.sh to download emulators."
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)
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result = defaultdict(list)
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for f in sorted(files):
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try:
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_, _, gen, tag = f.split("-", maxsplit=3)
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result[gen].append(tag)
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except ValueError:
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pass
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return result
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ALL_TAGS = get_tags()
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class EmulatorWrapper:
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def __init__(self, gen, tag, storage=None):
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self.gen = gen
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self.tag = tag
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self.workdir = tempfile.TemporaryDirectory()
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if storage:
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open(self._storage_file(), "wb").write(storage)
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def __enter__(self):
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if self.tag.startswith("/"): # full path+filename provided
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args = [self.tag]
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else: # only gen+tag provided
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args = ["%s/trezor-emu-%s-%s" % (BINDIR, self.gen, self.tag)]
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env = ENV
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if self.gen == "core":
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args += ["-m", "main"]
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# for firmware 2.1.2 and newer
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env["TREZOR_PROFILE_DIR"] = self.workdir.name
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# for firmware 2.1.1 and older
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env["TREZOR_PROFILE"] = self.workdir.name
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self.client = None
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self.process = subprocess.Popen(
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args, cwd=self.workdir.name, env=ENV, stdout=open(os.devnull, "w")
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)
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# wait until emulator is listening
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i = 0
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while True:
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try:
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i += 1
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if i > 100:
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self.__exit__(None, None, None)
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raise RuntimeError("Can't connect to emulator")
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self.transport = get_transport("udp:127.0.0.1:21324")
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except TransportException:
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time.sleep(0.1)
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continue
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break
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self.client = TrezorClientDebugLink(self.transport)
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self.client.open()
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# check whether the reported version matches the expected one
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if self.tag[0] == "v":
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version = "v%d.%d.%d" % (
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self.client.features["major_version"],
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self.client.features["minor_version"],
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self.client.features["patch_version"],
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)
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assert self.tag == version, "expected: %s reported: %s" % (
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self.tag,
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version,
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)
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return self
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def __exit__(self, exc_type, exc_value, traceback):
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if self.client:
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self.client.close()
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self.process.terminate()
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try:
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self.process.wait(1)
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except subprocess.TimeoutExpired:
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self.process.kill()
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self.workdir.cleanup()
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def _storage_file(self):
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if self.gen == "legacy":
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return self.workdir.name + "/emulator.img"
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elif self.gen == "core":
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return self.workdir.name + "/trezor.flash"
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else:
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raise ValueError("Unknown gen")
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def storage(self):
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return open(self._storage_file(), "rb").read()
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