| commit | cba0ef5b08abe3e3a5d124735078088f8341cc44 | [log] [tgz] |
|---|---|---|
| author | pigweed-roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com> | Sun Sep 14 17:48:15 2025 -0700 |
| committer | CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> | Sun Sep 14 17:48:15 2025 -0700 |
| tree | 4c4eba23d644666666747f0f4aa54249384e247e | |
| parent | 11cdfa1ac4af788d10733c072daf7927e72bdccc [diff] |
roll: third_party/pigweed/src 705a4a8..123911b (79 commits) 123911b:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/321894 roll: luci fdebd4b:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/321893 roll: fuchsia-infra-bazel-rules 8c8da21..66c9912 (58 commits) 918eb78:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320994 pw_metric: Document the new MetricService.Walk RPC a05539c:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/316695 pw_metric: Add paginated unary Walk RPC c9a7dae:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/321212 pw_ide: Fix pasting and keyboard events in manual build input 86ae903:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/321815 pw_assert: Exclude testing CHECK macros if defined 83502da:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/321814 pw_async2: Fix typo edc738e:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/321834 pw_multibuf: Add v2 to Android.bp 0d8c20e:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/319824 cleanup: Fix instances of "the the" a6bd670:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/318833 pw_kernel: Support system linker script templates fa201d6:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/321673 pw_bluetooth_proxy: Mutex l2cap signal identifier increment d1754c6:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/321672 pw_bluetooth_proxy: Register channel after complete ctor b9b86d5:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/321412 pw_i2c_mcuxpresso: Remove unecessary logging in i3c module 3a26f67:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/321192 pw_ide: Save last bazel command in txt file instead of vsc settings cc1da98:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/321236 pw_libcxx: Fix clang-tidy warnings with latest clang b53afe1:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/319822 pw_kernel: Remove debug_add and debug_noop syscalls 7c6aa2c:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/315672 pw_kernel: Add IPC channels bf773c2:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320936 pw_ide: Remove unused execution_root 7559f62:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/321254 pw_tokenizer: Make Java Detokenizer AutoCloseable 5193f86:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/321240 workflows.json: Add UBSAN builds and program 0033a6f:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/321239 workflows.json: Add TSAN builds and program 225298b:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/321238 workflows.json: Add ASAN builds and program e8c8cdd:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/321237 workflows.json: Add "clang_tidy" build 80ce673:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/321253 pw_bluetooth_proxy: Move channel registration atomically 4add45f:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/321332 docs: Move pw_allocator to stable 540b923:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/321175 pw_bluetooth_proxy: Use flushable flag for to-host ACL packets 0462a9b:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/319852 pw_bluetooth_proxy: Reduce log level for acl disconnect a0c0584:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/319236 pw_bluetooth_proxy: Add gtest repeat instructions cda169b:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/317141 pw_bluetooth_proxy: Use libc in multibuf allocators for testing 16a14de:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/317139 pw_bluetooth_proxy: Multi-threaded write tests 749dc69:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/317140 pw_bluetooth_proxy: Move PopFrontPayload after all usages 4a55e5a:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/317138 pw_bluetooth_proxy: Add some more logging around l2cap write d765d7c:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/317137 pw_bluetooth_proxy: Share kTestL2capQueueCapacity across tests fccd3fb:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/295175 pw_bluetooth_proxy: Avoid running drain if already running 673b243:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/295114 pw_bluetooth_proxy: Mutex new_tx_since_drain_ c34cb4e:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/319817 pw_toolchain: Workaround for missing builtins ffda917:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320922 pw_async2: Reword codelab waker instructions d29fcf1:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/319819 pw_async2: Update docs efc8002:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/318654 doxygen: Update pw_result and pw_status aliases 3c7eaef:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/315172 pw_thread: Provide non-joining creation tests 9704b22:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/319993 pw_multibuf: Add docs and examples for v2 c09a24e:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/321173 pw_multibuf: Make conversion constexpr fb2938f:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/321193 workflows.json: Migrate "kernel" program c76e0b5:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320997 pw_env_setup: Add CIPD support for Zephyr SDK 29cc658:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/321021 pw_ide: Integration test compile commands aspect 872ff8b:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/305452 pw_i2c_mcuxpresso: Use non-blocking calls when sending CCC 79bd73d:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320996 pw_tokenizer: Add default_applicable_licenses to internal build files 8b50893:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/314432 pw_snapshot: Update python processor to display logs 3cf4342:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320995 java: Update Java tests for consistency with internal use 8a038e6:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320355 pw_snapshot: Re-enable bazel processor_test 2bf5b5c:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/319172 googletest: Patch the googletest module 3656ced:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/321036 workflows.json: Migrate "default" program b54ed1b:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320354 pw_log: Allow LogStreamDecoder decoded_log_handler to be omitted c182580:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320353 pw_log: Update Log.__str__ to ignore empty fields 11b66b2:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320352 pw_log: Ignore missing timestamp fields in LogStreamDecoder 81d9d93:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320894 [owners] Remove ykyyip@google.com from pw_trace_tokenized/OWNERS 61e4015:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320916 pw_ide: Add tests for the compile command fragment merger 4ce07b7:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320457 pw_tokenizer: Internal BUILD files for pw_tokenizer f5ac987:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320456 pw_tokenizer: JNI detokenizer fixes 5c1328a:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320829 pw_ide: rm arch arg in python compile commands too 050f6af:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320954 pw_async2: Set default task name; use in missing waker crash 02793b0:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320953 pw_async2: Fix codelab key_press_isr impl fb66eb6:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320952 pw_async2: Fix a codelab typo b2213f1:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320939 pw_async2: Retain HardwareInit call in step 1 solution 718d96c:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320416 pw_ide: Release v1.9.9 6417ba1:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320920 pw_async2: Namespace Poll & Pending in codelab 33c4e15:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320917 pw_build: Require experimental_platform_in_output_dir c5c6cb4:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320871 Revert "pw_ide: Do not emit arguments for headers" 32cbe49:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320828 pw_async2: Remove waker guards 72ba76d:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/319914 pw_kernel: Optimize syscall arg lookup 4abbd58:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320823 pw_async2: ItemDropSensor fixes 52cd776:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320861 pw_async2: Correct CLI usage text acd4079:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/315533 pw_kernel: Allow partial reconfiguration of the PMP a5778cd:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320820 pw_async2: Give codelab DispenserTask a name 397b276:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/317452 pw_ide: Do not emit arguments for headers 4925447:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320856 pw_multibuf: Reduce severity of multibuf_v2's warning 099aa1c:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320855 pw_grpc: Use UniquePtr for assembly buffer 02a008c:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320854 pw_grpc: Fix handling of settings frame e0301cf:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320812 roll: go Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed Rolled-Commits: 705a4a8e890874..123911bae1b45f Roll-Count: 1 Roller-URL: https://cr-buildbucket.appspot.com/build/8703705374735187153 GitWatcher: ignore CQ-Do-Not-Cancel-Tryjobs: true Change-Id: I761fa1eb6dc723ec211be8658e41aa7757411062 Reviewed-on: https://pigweed-review.googlesource.com/c/open-dice/+/322232 Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com> Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com> Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
This repository contains the specification for the Open Profile for DICE along with production-quality code. This profile is a specialization of the Hardware Requirements for a Device Identifier Composition Engine and DICE Layering Architecture specifications published by the Trusted Computing Group (TCG). For readers already familiar with those specs, notable distinctives of this profile include:
You can find us (and join us!) at https://groups.google.com/g/open-profile-for-dice. We're happy to answer questions and discuss proposed changes or features.
The specification can be found here. It is versioned using a major.minor scheme. Compatibility is maintained across minor versions but not necessarily across major versions.
Production quality, portable C code is included. The main code is in dice.h and dice.c. Cryptographic and certificate generation operations are injected via a set of callbacks. Multiple implementations of these operations are provided, all equally acceptable. Integrators should choose just one of these, or write their own.
Tests are included for all code and the build files in this repository can be used to build and run these tests.
Disclaimer: This is not an officially supported Google product.
Different implementations use different third party libraries. The third_party directory contains build files and git submodules for each of these. The submodules must be initialized once after cloning the repo, using git submodule update --init, and updated after pulling commits that roll the submodules using git submodule update.
To setup the build environment the first time:
$ git submodule update --init --recursive $ source bootstrap.sh $ gn gen out
To build and run tests:
$ ninja -C out
The easiest way, and currently the only supported way, to build and run tests is from a Pigweed environment on Linux. Pigweed does support other host platforms so it shouldn't be too hard to get this running on Windows for example, but we use Linux.
There are two scripts to help set this up:
bootstrap.sh will initialize submodules, bootstrap a Pigweed environment, and generate build files. This can take some time and may download on the order of 1GB of dependencies so the normal workflow is to just do this once.
activate.sh quickly reactivates an environment that has been previously bootstrapped.
These scripts must be sourced into the current session: source activate.sh.
In the environment, from the base directory of the dice-profile checkout, run ninja -C out to build everything and run all tests. You can also run pw watch which will build, run tests, and continue to watch for changes.
This will build and run tests on the host using the clang toolchain. Pigweed makes it easy to configure other targets and toolchains. See toolchains/BUILD.gn and the Pigweed documentation.
The code is designed to be portable and should work with a variety of modern toolchains and in a variety of environments. The main code in dice.h and dice.c is C99; it uses uint8_t, size_t, and memcpy from the C standard library. The various ops implementations are as portable as their dependencies (often not C99 but still very portable). Notably, this code uses designated initializers for readability. This is a feature available in C since C99 but missing from C++ until C++20 where it appears in a stricter form.
The Google C++ Style Guide is used. A .clang-format file is provided for convenience.
To incorporate the code into another project, there are a few options:
Copy only the necessary code. For example:
Take the main code as is: include/dice/dice.h, src/dice.c
Choose an implementation for crypto and certificate generation or choose to write your own. If you choose the boringssl implementation, for example, take include/dice/utils.h, include/dice/boringssl_ops.h, src/utils.c, and src/boringssl_ops.c. Taking a look at the library targets in BUILD.gn may be helpful.
Add this repository as a git submodule and integrate into the project build, optionally using the gn library targets provided.
Integrate into a project already using Pigweed using the gn build files provided.
The build reports code size using Bloaty McBloatface via the pw_bloat Pigweed module. There are two reports generated:
Library sizes - This report includes just the library code in this repository. It shows the baseline DICE code with no ops selected, and it shows the delta introduced by choosing various ops implementations. This report does not include the size of the third party dependencies.
Executable sizes - This report includes sizes for the library code in this repository plus all dependencies linked into a simple main function which makes a single DICE call with all-zero input. It shows the baseline DICE code with no ops (and therefore no dependencies other than libc), and it shows the delta introduced by choosing various ops implementations. This report does include the size of the third party dependencies. Note that rows specialized from ‘Boringssl Ops’ use that as a baseline for sizing.
The reports will be in the build output, but you can also find the reports in .txt files in the build output. For example, cat out/host_optimized/gen/*.txt | less will display all reports.
This code does not itself use mutable global variables, or any other type of shared data structure so there is no thread-safety concerns. However, additional care is needed to ensure dependencies are configured to be thread-safe. For example, the current boringssl configuration defines OPENSSL_NO_THREADS_CORRUPT_MEMORY_AND_LEAK_SECRETS_IF_THREADED, and that would need to be changed before running in a threaded environment.
This code makes a reasonable effort to clear memory holding sensitive data. This may help with a broader strategy to clear sensitive data but it is not sufficient on its own. Here are a few things to consider.