mirror of
https://github.com/kidfromjupiter/nearby.git
synced 2026-09-15 15:16:12 -04:00
Anay Wadhera
f26d25ed01
The `RandBytes` functions were being placed in the `crypto` namespace, which collides with Chromium's namespace of the same name. Within, `RandBytes` was defined with almost-the-same API. Then in Chromium builds, the Chromium header would be used instead (though somewhat inconsistently). This creates a lot of pain for Chromium development as there's a third-party repository directly depending on headers from Chromium's source tree, and is against the third-party policies for that reason. There are a number of other headers that mirror Chromium and are swapped out in the Chromium build that will cause similar pain, such as: ``` include "crypto/aead.h" include "crypto/ec_private_key.h" include "crypto/hkdf.h" ``` This CL provides a template for how to get rid of these header swaps and give a platform abstraction in nearby instead. We provide a platform abstraction in `platform/crypto.h` (really in `platform/implementation/crypto.h`) which is implemented in `platform/implementation/shared/crypto.cc`. However that implementation is removed by `#ifdef` when in the Chromium build. Then, in the Chromium repo, we will add (separately) an implementation of the same abstraction in `//third_party/nearby/platform_impl` with GN rules to include it in the build. It will replace the implementation from the nearby repo. Copybara import of the project: -- 6ca8099 by danakj <danakj@chromium.org>: Provide a platform abstraction for RandBytes instead of swapping headers The `RandBytes` functions were being placed in the `crypto` namespace, which collides with Chromium's namespace of the same name. Within, `RandBytes` was defined with almost-the-same API. Then in Chromium builds, the Chromium header would be used instead (though somewhat inconsistently). This creates a lot of pain for Chromium development as there's a third-party repository directly depending on headers from Chromium's source tree, and is against the third-party policies for that reason. There are a number of other headers that mirror Chromium and are swapped out in the Chromium build that will cause similar pain, such as: ``` include "crypto/aead.h" include "crypto/ec_private_key.h" include "crypto/hkdf.h" ``` This CL provides a template for how to get rid of these header swaps and give a platform abstraction in nearby instead. We provide a platform abstraction in `platform/crypto.h` (really in `platform/implementation/crypto.h`) which is implemented in `platform/implementation/shared/crypto.cc`. However that implementation is removed by `#ifdef` when in the Chromium build. Then, in the Chromium repo, we will add (separately) an implementation of the same abstraction in `//third_party/nearby/platform_impl` with GN rules to include it in the build. It will replace the implementation from the nearby repo. -- 9c2654b by danakj <danakj@chromium.org>: Remove CryptoSpan, use absl::Span The header swapping of Chromium crypto libraries is problematic, but absl::Span will convert to base::span so there's no need for the typedef even without removing the header swapping yet. -- df1135d by danakj <danakj@chromium.org>: Add missing files -- ab18a15 by danakj <danakj@chromium.org>: Remove the random_unittest.cc from Swift build The file moved, so the Swift package needs its path updated. -- 2038f78 by danakj <danakj@chromium.org>: Combine crypto unittests into crypto_test.cc -- f7ad176 by danakj <danakj@chromium.org>: Add stdint and stddef includes for uint8_t and size_t -- 9f04590 by danakj <danakj@chromium.org>: Mark the shared crypto implementation compatable_with non_prod -- 18eeafd by danakj <danakj@chromium.org>: Add IWYU pragma for crypto implementation PiperOrigin-RevId: 632150866
95 lines
2.4 KiB
Python
95 lines
2.4 KiB
Python
# Copyright 2020 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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licenses(["notice"])
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cc_library(
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name = "crypto",
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srcs = [
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"crypto.cc",
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],
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visibility = ["//internal/platform/implementation:__subpackages__"],
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deps = [
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"@boringssl//:crypto",
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"@com_google_absl//absl/types:span",
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],
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)
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cc_library(
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name = "posix_mutex",
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srcs = [
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"posix_mutex.cc",
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],
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hdrs = [
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"posix_mutex.h",
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],
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visibility = [
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"//internal/platform/implementation:__subpackages__",
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],
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deps = ["//internal/platform/implementation:types"],
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)
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cc_library(
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name = "posix_condition_variable",
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srcs = [
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"posix_condition_variable.cc",
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],
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hdrs = [
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"posix_condition_variable.h",
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],
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deps = [
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":posix_mutex",
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"//internal/platform/implementation:types",
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],
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)
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cc_library(
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name = "file",
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srcs = ["file.cc"],
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hdrs = ["file.h"],
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visibility = ["//internal/platform/implementation:__subpackages__"],
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deps = [
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"//internal/platform:base",
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"//internal/platform/implementation:types",
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"@com_google_absl//absl/memory",
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"@com_google_absl//absl/strings",
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],
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)
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cc_library(
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name = "count_down_latch",
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srcs = ["count_down_latch.cc"],
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hdrs = ["count_down_latch.h"],
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visibility = ["//internal/platform/implementation:__subpackages__"],
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deps = [
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"//internal/platform/implementation:types",
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"@com_google_absl//absl/base:core_headers",
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"@com_google_absl//absl/strings",
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"@com_google_absl//absl/synchronization",
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"@com_google_absl//absl/time",
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],
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)
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cc_test(
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name = "file_test",
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srcs = ["file_test.cc"],
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deps = [
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":file",
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"//file/util:temp_path",
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"//internal/platform:base",
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"@com_github_protobuf_matchers//protobuf-matchers",
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"@com_google_absl//absl/strings",
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"@com_google_googletest//:gtest_main",
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],
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)
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