omp-rpc

omp-rpc provides the transport and protocol-negotiation plumbing for omp's gRPC services. It supports owner-only local Unix-domain sockets and TCP connections secured with mutual TLS, performs a schema-aware hello handshake, and exposes standard gRPC health reporting.

Structure

• health wraps gRPC liveness and per-service readiness reporting.
• hello implements the initial peer handshake and schema-revision compatibility checks.
• tls builds client and server TLS configuration.
• uds listens for and connects to Unix-domain socket transports.
• The crate-level Error type unifies I/O, transport, RPC, TLS, schema-negotiation, and unsupported-transport failures.

Philosophy

Transport concerns stay separate from service behavior while local and network clients share the same protocol. Connections negotiate compatibility before exchanging application data so protobuf unknown-field behavior cannot silently discard data from a newer client. Health reporting uses the standard grpc.health.v1 protocol rather than a project-specific alternative.