Add runtime detection for shared handle misuse
wrap the FFI engine handle with parking_lot::RwLock when the new
contention_checks feature is enabled, surfacing a clear “handle is already
in use” error instead of allowing undefined behavior
keep the feature optional so no_std builds or environments that supply
their own synchronization can opt out
caution users that this guards the handle itself but does not make the
engine’s operations globally thread-safe on its own
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
* feat!: add Rego Virtual Machine (RVM) implementation
This commit introduces a register-based virtual machine for executing Rego
policies with bytecode-style instructions. Unlike the existing tree-walking
interpreter, the RVM compiles policies into instruction sequences that operate
on virtual registers, offering better performance and optimization potential.
Core Components:
Instruction Set Architecture:
- Define instruction types for data operations, control flow, and builtins
- Implement instruction parameter encoding and display formatting
- Add instruction parser with comprehensive test coverage
Virtual Machine Engine:
- Register-based execution model with program counter management
- Loop execution supporting iterators, comprehensions, and quantifiers
- Function call handling with argument evaluation and context management
- Rule evaluation with default value resolution and virtual data support
- Arithmetic and comparison operation implementations
Program Representation:
- Program listing builder with instruction sequencing
- Rule tree construction for organizing policy rules
- Binary and JSON serialization for compiled programs
- Recompilation support for program modification
Testing Infrastructure:
- Extensive YAML test suites covering all VM features
- Rust unit tests for VM execution and instruction parsing
- Test suites for loops, comprehensions, builtins, and control flow
BREAKING CHANGE: Introduces new VM execution path alongside interpreter
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
* docs: add detailed RVM architecture references
Introduce architecture.md explaining program artifacts, serialization, and runtime subsystems.
Document the full opcode catalog in instruction-set.md, including operands, parameter tables, and outcomes.
Walk through execution flow, stacks, and operational guidance in vm-runtime.md, tying the runtime to the new architecture docs.
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
---------
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
* build: Add xtask automation for binding version management
Introduces a dedicated xtask crate that keeps language binding versions
in sync with the core regorus crate, following the workflow pattern used
by rust-analyzer, gitoxide, and ripgrep.
Key features:
- Git-based change detection: compares binding source files against a
base ref (merge-base with origin/main by default) plus unstaged/
untracked files to identify which bindings have been modified
- SemVer-aware bumping: binding edits trigger a minor version increment
(e.g. 0.5.1 → 0.6.0) under pre-1.0 semantics, signaling potential
breaking changes; clean bindings simply align to the root version
- Multi-language support: updates Cargo manifests (Rust FFI, Java,
Python, WASM, Ruby), Maven pom.xml (Java), Ruby version constants,
and C# project files in a single pass
- CI integration: --check mode fails fast when manifests are out of
sync, ensuring pre-commit and release-plz workflows catch stale
versions before merge
Integration points:
- release-plz.toml: runs cargo xtask bindings --base-ref origin/main
after bumping the root crate, so binding versions are updated
atomically during the release process
- scripts/pre-commit: invokes cargo xtask bindings --check to block
commits that would leave bindings out of sync
- .cargo/config.toml: defines cargo xtask alias for convenience
Documentation includes inline examples showing how version bumps behave
when bindings are ahead/behind the root, and notes that the minor
field acts as the major version under SemVer 0.y.z initial development
phase.
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
* build: refresh xtask tooling, workflows, and locks
- cargo xtask bindings: keep the binding version-sync pipeline intact
- cargo xtask update-deps: new helper to regenerate workspace/binding Cargo.lock files
- workflows: auto-detect the Java jar version in CI and temporarily disable the Ruby workflow
- lock files: refresh root + binding snapshots after the dependency sweep
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
---------
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
Major changes:
- Implement the `net.cidr_contains` builtin
- Enable the v0 and v1 test for `net.cidr_contains`
- Add the `netip` crate to standardize CIDR searching and other
operations
Key Concept:
- Allow users to leverage the `net.cidr_contains` builtin to check
whether an IPv4 or IPv6 CIDR contains a specified IP address or
subnet.
Testing:
- All tests passing.
Signed-off-by: tjons <tylerschade99@gmail.com>
This commit introduces a complete multi-threaded evaluation benchmark suite for both Rust and C# implementations of Regorus.
- Implemented engine evaluation benchmark with input and engine cloning strategies
- Implemented compiled policy evaluation benchmark with input cloning and shared compiled policy strategies.
- Created EngineEvaluationBenchmark.cs and CompiledPolicyEvaluationBenchmark.cs with time-based execution (3s warmup + 3s evaluation)
- Implemented configuration options matching Rust implementation (useClonedEngines, useSharedPolicies parameters)
- Created markdown analysis documentation with cross-platform performance analysis
- C# seems to achieve 58-89% of Rust performance on test machine.
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
Also update binding versions and lock files.
Note:
- Ruby binding is not updated
- C# binding is v0.7.0. We will make it match Regorus version later.
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
Indexes allow associating extra data with nodes in the AST
using an array and then quickly looking up the array to fetch
the extra data.
- Index eidx for expressions
- Index sidx for statements
- Index qidx for queries.
AST nodes are not cloneable. Therefore once a module is created,
it is not possible to accidentally create two nodes with the same
index inadvertently via clone.
Also added IndexChecker in debug builds. When a module is parsed,
it will assert that indexes have been constructed correctly.
AST Cleanup
- Make literal expressions (null, val, number, string etc) also structs
to match all other expressions
- Merge True and False nodes into a single Bool node.
Also update dependencies.
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
- Documentation
- Regorus Engine is intended to be used from a single thread
- Clone the engine after adding policies and data to use from another thread
- Builtin errors strictness:
- default to less strict for OPA compatibility
- Provide API to change strictness
- Expose GetAstAsJson to C#,
This can allow writing policy validations in C#.
- Use spectre mitigated msvc crt libs (binskim compliance)
- Update dependencies
fixes#404
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
Cryptographic builtins are removed due to various reasons like FIPS
compliance. Users needing crypto builtins are encouraged to use
extensions.
Deprecated functions are also removed.
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
- Specify compatibility = linux in pyproject.toml to ensure
manylinux compatibility.
- Use abi-py310 pyo3 feature to ensure compatibility with python
3.10 and later.
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
Removed cryptographically insecure sha1. This existed only for OPA
compatibility.
Also exclude bindings from main workspace
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
Regorus now defaults to rego v1. `import rego.v1` is no longer needed.
Additionally, `future` keywords are automatically imported.
See
https://www.openpolicyagent.org/docs/latest/v0-upgrade/#changes-to-rego-in-opa-v10
to understand the differences between rego v1 and v0.
BREAKING CHANGE:
v0 style policies will error out by default. To enable v0 behavior, call engine.set_rego_v0(true) before
loading policies.
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
Specify `js` feature for `uuid` when building wasm by
specifying it as a non-optional dependency in wasm binding's Cargo.toml.
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
- Created an example of extension policy
- Added C# binding support of .NET framework 4.0 and created a Nuget
spec for it.
- Added a pytest in python bindings to test the extension policy and the
python binding
- Restructured the example and Csharp binding directories due to above
changes.
- Added copyrights.
- Added a Windows workflow for .NET 4.0 build and test.
- c, cpp
- csharp
- ffi
- go
- Java
- Python
- WASM
`arc` feature is turned on for all bindings
Use pretty string instead of colored string.
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
- Do not require backtrace feature
- Starting version 1.0.77, anyhow gathers backtrace is std feature (enabled by default)
is specified even if backtrace feature is not enabled.
Therefore specify default features as false.
- Specify version 1.0.45 since that is the minimul version required to successfully
compile regorus
Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
