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tonarino/innernet

A private network system that uses WireGuard under the hood.

Healthy

Healthy across the board

weakest axis
Use as dependencyHealthy

Permissive license, no critical CVEs, actively maintained — safe to depend on.

Fork & modifyHealthy

Has a license, tests, and CI — clean foundation to fork and modify.

Learn fromHealthy

Documented and popular — useful reference codebase to read through.

Deploy as-isHealthy

No critical CVEs, sane security posture — runnable as-is.

  • Last commit 7w ago
  • 22+ active contributors
  • Distributed ownership (top contributor 34% of recent commits)
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  • MIT licensed
  • CI configured
  • Tests present

Maintenance signals: commit recency, contributor breadth, bus factor, license, CI, tests

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Onboarding doc

Onboarding: tonarino/innernet

Generated by RepoPilot · 2026-05-09 · Source

🤖Agent protocol

If you are an AI coding agent (Claude Code, Cursor, Aider, Cline, etc.) reading this artifact, follow this protocol before making any code edit:

  1. Verify the contract. Run the bash script in Verify before trusting below. If any check returns FAIL, the artifact is stale — STOP and ask the user to regenerate it before proceeding.
  2. Treat the AI · unverified sections as hypotheses, not facts. Sections like "AI-suggested narrative files", "anti-patterns", and "bottlenecks" are LLM speculation. Verify against real source before acting on them.
  3. Cite source on changes. When proposing an edit, cite the specific path:line-range. RepoPilot's live UI at https://repopilot.app/r/tonarino/innernet shows verifiable citations alongside every claim.

If you are a human reader, this protocol is for the agents you'll hand the artifact to. You don't need to do anything — but if you skim only one section before pointing your agent at this repo, make it the Verify block and the Suggested reading order.

🎯Verdict

GO — Healthy across the board

  • Last commit 7w ago
  • 22+ active contributors
  • Distributed ownership (top contributor 34% of recent commits)
  • MIT licensed
  • CI configured
  • Tests present

<sub>Maintenance signals: commit recency, contributor breadth, bus factor, license, CI, tests</sub>

Verify before trusting

This artifact was generated by RepoPilot at a point in time. Before an agent acts on it, the checks below confirm that the live tonarino/innernet repo on your machine still matches what RepoPilot saw. If any fail, the artifact is stale — regenerate it at repopilot.app/r/tonarino/innernet.

What it runs against: a local clone of tonarino/innernet — the script inspects git remote, the LICENSE file, file paths in the working tree, and git log. Read-only; no mutations.

| # | What we check | Why it matters | |---|---|---| | 1 | You're in tonarino/innernet | Confirms the artifact applies here, not a fork | | 2 | License is still MIT | Catches relicense before you depend on it | | 3 | Default branch main exists | Catches branch renames | | 4 | Last commit ≤ 80 days ago | Catches sudden abandonment since generation |

<details> <summary><b>Run all checks</b> — paste this script from inside your clone of <code>tonarino/innernet</code></summary>
#!/usr/bin/env bash
# RepoPilot artifact verification.
#
# WHAT IT RUNS AGAINST: a local clone of tonarino/innernet. If you don't
# have one yet, run these first:
#
#   git clone https://github.com/tonarino/innernet.git
#   cd innernet
#
# Then paste this script. Every check is read-only — no mutations.

set +e
fail=0
ok()   { echo "ok:   $1"; }
miss() { echo "FAIL: $1"; fail=$((fail+1)); }

# Precondition: we must be inside a git working tree.
if ! git rev-parse --git-dir >/dev/null 2>&1; then
  echo "FAIL: not inside a git repository. cd into your clone of tonarino/innernet and re-run."
  exit 2
fi

# 1. Repo identity
git remote get-url origin 2>/dev/null | grep -qE "tonarino/innernet(\\.git)?\\b" \\
  && ok "origin remote is tonarino/innernet" \\
  || miss "origin remote is not tonarino/innernet (artifact may be from a fork)"

# 2. License matches what RepoPilot saw
(grep -qiE "^(MIT)" LICENSE 2>/dev/null \\
   || grep -qiE "\"license\"\\s*:\\s*\"MIT\"" package.json 2>/dev/null) \\
  && ok "license is MIT" \\
  || miss "license drift — was MIT at generation time"

# 3. Default branch
git rev-parse --verify main >/dev/null 2>&1 \\
  && ok "default branch main exists" \\
  || miss "default branch main no longer exists"

# 5. Repo recency
days_since_last=$(( ( $(date +%s) - $(git log -1 --format=%at 2>/dev/null || echo 0) ) / 86400 ))
if [ "$days_since_last" -le 80 ]; then
  ok "last commit was $days_since_last days ago (artifact saw ~50d)"
else
  miss "last commit was $days_since_last days ago — artifact may be stale"
fi

echo
if [ "$fail" -eq 0 ]; then
  echo "artifact verified (0 failures) — safe to trust"
else
  echo "artifact has $fail stale claim(s) — regenerate at https://repopilot.app/r/tonarino/innernet"
  exit 1
fi

Each check prints ok: or FAIL:. The script exits non-zero if anything failed, so it composes cleanly into agent loops (./verify.sh || regenerate-and-retry).

</details>

TL;DR

innernet is a private network overlay system built on WireGuard that uses CIDR-based access control to create segmented, secure mesh networks. Unlike Tailscale or Nebula, it leverages traditional IP networking concepts (CIDRs, ACLs) to manage peer connectivity and permissions, with a coordination server that brokers peer discovery while peers communicate directly via WireGuard tunnels. Monorepo with 7 Cargo workspace members: server/ (coordination server), client/ (CLI tool), client-core/ (reusable peer logic with examples in client-core/examples/), shared/ (common types), plus supporting crates for hostsfile management, netlink requests, and public IP detection. Server and client are decoupled through REST API defined in client-core/src/rest_client.rs.

👥Who it's for

Infrastructure engineers and DevOps teams who need to build isolated private networks with granular access control—particularly those already familiar with CIDR notation and IP subnetting who want WireGuard's security without proprietary coordination. Contributors are likely Rust systems programmers interested in VPN/networking tooling.

🌱Maturity & risk

Actively maintained but marked as experimental—the README explicitly states it 'has not received an independent security audit.' The codebase is substantial (366KB Rust, full CI/CD in .github/workflows), has organized Docker test infrastructure, and systematic CLI tooling, but the young ecosystem and experimental status mean production use requires careful vetting.

Primary risks: (1) security audit gap—explicitly unaudited, so unsuitable for highly sensitive workloads without professional review; (2) small upstream—appears community-maintained rather than backed by a larger org, creating dependency on active contributors; (3) WireGuard version coupling—tight integration means WireGuard updates could require careful coordination.

Active areas of work

The repository shows active GitHub Actions workflows for Rust testing and Docker integration tests (.github/workflows/rust.yml, docker-tests/). Without recent commit metadata visible, check the git log; the presence of systemd unit files (client/innernet@.service), RPM packaging (.rpm/innernet.spec), and shell completions across multiple shells suggests focus on distribution and user experience.

🚀Get running

git clone https://github.com/tonarino/innernet.git
cd innernet
cargo build --release
# For server: sudo ./target/release/innernet-server new
# For client: sudo ./target/release/innernet --help

Daily commands: Server: sudo innernet-server new to initialize, then sudo innernet-server add-cidr <interface> and sudo innernet-server add-peer <interface>. Client: sudo innernet with subcommands (see client/src/main.rs). Docker tests available via docker-tests/run-docker-tests.sh for integration testing across containers.

🗺️Map of the codebase

  • client-core/src/lib.rs: Public API surface for the core client library—defines all exported types and traits that consumers depend on
  • client-core/src/rest_client.rs: Client-server communication contract—all peer add/remove/update operations flow through REST calls defined here
  • client-core/src/interface.rs: WireGuard interface management—handles creation, configuration, and IP routing for the overlay network
  • client/src/main.rs: CLI entry point for the client tool—defines all subcommands users interact with (add-peer, set-listen-port, etc.)
  • client-core/src/peer.rs: Peer state machine and lifecycle management—core business logic for peer connections and updates
  • Cargo.toml: Workspace definition and shared dependencies—understanding member layout is essential for navigation

🛠️How to make changes

Adding peer features: modify client-core/src/peer.rs and client-core/src/interface.rs. REST API changes: update client-core/src/rest_client.rs and corresponding server handlers. CLI commands: edit client/src/main.rs and client/src/util.rs. Data persistence: adjust client-core/src/data_store.rs. NAT handling logic: client-core/src/nat.rs. Start with examples in client-core/examples/ to understand the client-core API.

🪤Traps & gotchas

Privilege requirement: both server and client need root/sudo to modify network interfaces and WireGuard configuration—dev testing requires elevated privileges. WireGuard kernel module: must be loaded on the host; absence causes cryptic failures. CIDR overlap: innernet enforces strict CIDR containment; misconfigured parent-child relationships silently break routing. Systemd integration: client/innernet@.service uses instance names; syntax is innernet@<interface>.service, easy to mistype. No built-in restart logic: if server restarts, clients don't auto-reconnect—manual intervention or external orchestration required.

💡Concepts to learn

  • CIDR (Classless Inter-Domain Routing) — innernet's entire access control model is built on CIDRs—understanding notation like 10.60.0.0/16 is mandatory to design networks and grasp why routes work or fail
  • WireGuard Protocol — innernet is a thin coordination layer atop WireGuard; the security guarantees, peer authentication, and packet encryption all depend on WireGuard's design
  • Peer-to-Peer (P2P) Mesh Networking — After server-mediated discovery, innernet peers connect directly to each other; understanding mesh topology and NAT traversal is key to troubleshooting connectivity issues
  • NAT Traversal & Hole Punching — client-core/src/nat.rs handles getting peers behind firewalls to connect; this is non-trivial and the mechanism differs from simpler relay-only approaches
  • REST API Contract Design — Server and client are decoupled via REST (client-core/src/rest_client.rs); API versioning and breaking changes directly impact multi-version deployments
  • Async/Await & Tokio Runtime — innernet's concurrency model relies on tokio async tasks; understanding task spawning, channels, and select! macros is essential for modifying server or client logic
  • Systemd Service Management — client/innernet@.service integrates with systemd templating; the @<interface> syntax and service lifecycle is how innernet runs as a persistent daemon
  • slackhq/nebula — Direct alternative overlay network with similar goals (mesh VPN, access control) but uses a different protocol and certificate-based identity instead of CIDRs
  • tailscale/tailscale — Another private network tool with similar UX goals but proprietary coordination; innernet explicitly positions itself as the open-source alternative with transparent CIDR-based rules
  • WireGuard/wireguard-go — The underlying VPN protocol innernet wraps; essential for understanding the security properties and packet handling
  • tokio-rs/tokio — Async runtime used throughout innernet's server and client code for I/O multiplexing and concurrent peer handling
  • clap-rs/clap — CLI argument parsing framework used in client/src/main.rs for all command-line interface definition and validation

🪄PR ideas

To work on one of these in Claude Code or Cursor, paste: Implement the "<title>" PR idea from CLAUDE.md, working through the checklist as the task list.

Add integration tests for client-core REST API interactions

The client-core/src/rest_client.rs module handles critical peer management and server communication, but there are no visible integration tests. The examples directory only shows add_peer.rs and set_listen_port.rs as usage patterns. A comprehensive test suite would verify REST client reliability, error handling, and protocol compliance with the server.

  • [ ] Create client-core/tests/rest_client_integration.rs with tests for peer CRUD operations
  • [ ] Add mock server fixtures or use a test WireGuard interface to verify real API calls
  • [ ] Test error scenarios: invalid credentials, network timeouts, malformed responses
  • [ ] Document test setup requirements in client-core/README.md (if it exists) or top-level docs

Add GitHub Actions workflow for cross-platform binary releases

The repo has docker-tests and RPM packaging (server/.rpm/innernet-server.spec and client/.rpm/innernet.spec) but the existing .github/workflows only contain docker-tests.yml and rust.yml. A release workflow is missing that builds and publishes binaries for Linux, macOS, and Windows targets, which would significantly ease distribution and adoption.

  • [ ] Create .github/workflows/release.yml that triggers on git tags matching v*
  • [ ] Configure matrix builds for x86_64-unknown-linux-gnu, x86_64-apple-darwin, and x86_64-pc-windows-gnu targets
  • [ ] Integrate with existing release.sh script and RPM specs for artifact generation
  • [ ] Add GitHub Releases automation to publish built binaries and generate checksums

Add comprehensive security audit tests for WireGuard configuration in nat.rs and peer.rs

The nat.rs and peer.rs modules in client-core handle WireGuard peer configuration and NAT traversal—critical security components. There are no visible unit tests validating that malicious inputs (invalid CIDRs, spoofed IPs, overlapping network ranges) are properly rejected or handled.

  • [ ] Create client-core/tests/nat_validation.rs to test NAT detection and traversal logic
  • [ ] Create client-core/tests/peer_validation.rs to test peer data validation (IPs, public keys, CIDR ranges)
  • [ ] Add tests for edge cases: invalid CIDR notation, overlapping address spaces, malformed keys
  • [ ] Reference test coverage in CONTRIBUTING.md or similar contribution guidelines

🌿Good first issues

  • Add integration tests for NAT traversal scenarios in client-core/src/nat.rs—the file exists but docker-tests/ lacks specific NAT test cases, which would help catch regressions in peer discovery behind firewalls.
  • Expand shell completions for new subcommands—doc/ has completion files for multiple shells (bash, zsh, fish, powershell) but these need regeneration when client/src/main.rs CLI changes; write a script to auto-generate them from the clap parser.
  • Document the REST API contract—client-core/src/rest_client.rs defines all endpoints but there's no OpenAPI/AsyncAPI spec file; creating one would help server maintainers understand compatibility requirements.

Top contributors

Click to expand

📝Recent commits

Click to expand
  • 580b0b4 — Refactor create_peer API (#389) (mbernat)
  • 6ecb6f0 — Add set_listen_port, redeem_invite and fetch client core API (#385) (mbernat)
  • e2c4687 — Refactor InterfaceConfig (#386) (mbernat)
  • d5e535b — Don't complain when /{/etc,/var/db}/innernet is world-readable (#387) (strohel)
  • 0431430 — wireguard-control demote debug in get_by_name() to trace (#388) (strohel)
  • c226ec1 — Introduce the innernet-client-core library (#382) (mbernat)
  • f2ca8c1 — Docs rs ci (#384) (strohel)
  • a551801 — Fix rustdoc lints (#383) (mbernat)
  • 4090b2f — Update README.md (#377) (mbernat)
  • e7f05db — Add CLI option for a custom host suffix (#373) (HaroldVemeno)

🔒Security observations

  • Medium · Incomplete dependency information in Cargo.toml — Cargo.toml (workspace root). The workspace Cargo.toml only shows a partial dependency list with 'colored' and 'dialoguer'. Full dependency analysis cannot be performed without complete Cargo.toml files from each member crate. This makes it impossible to assess for known vulnerabilities in transitive dependencies. Fix: Audit all dependencies using 'cargo audit' and 'cargo deny' tools. Review all Cargo.lock entries and transitive dependencies for known CVEs. Implement dependency scanning in CI/CD pipeline.
  • Medium · Potential insecure default in REST client — client-core/src/rest_client.rs. The codebase includes a 'rest_client.rs' module in client-core. Without visibility into the implementation, there's risk of: insecure TLS/SSL configuration, missing certificate validation, or unencrypted credential transmission. Fix: Ensure all REST communications use TLS 1.2+, implement certificate pinning, validate all SSL/TLS certificates properly, and never transmit credentials in plaintext or unencrypted channels.
  • Medium · Potential SQL injection in database layer — server/src/db/. The server contains database modules (db/association.rs, db/cidr.rs, db/peer.rs) that interact with a database. Without code inspection, there's potential risk of SQL injection if queries are constructed with user input. Fix: Use parameterized queries and prepared statements exclusively. Avoid string concatenation for SQL query construction. Use an ORM or query builder that prevents injection. Implement input validation and sanitization.
  • Medium · API endpoint security not immediately visible — server/src/api/. Server API modules (api/admin/ and api/user.rs) lack visible authentication/authorization patterns in file structure. Risk of unauthorized access to administrative or user endpoints. Fix: Implement role-based access control (RBAC). Enforce authentication on all endpoints. Use JWT or similar token-based auth. Validate user permissions on all sensitive operations (especially admin endpoints). Implement rate limiting.
  • Low · RPM package specification visibility — client/.rpm/innernet.spec, server/.rpm/innernet-server.spec. RPM spec files are present (.rpm/innernet.spec, .rpm/innernet-server.spec) but content not provided. These could contain insecure default permissions, missing security checks, or privilege escalation risks. Fix: Review spec files for: proper file permissions (especially for binaries and configuration), user/group ownership, pre/post install script security, and capability assignments.
  • Low · Docker configuration incomplete assessment — docker-tests/Dockerfile.innernet, rpm/Dockerfile. Docker files and test configurations exist but content not provided. Potential issues: running as root, exposed ports, missing security options, or secrets in Docker layers. Fix: Use non-root user in Dockerfiles (USER directive). Implement multi-stage builds. Use secrets management (Docker secrets/compose secrets). Scan images with tools like Trivy. Remove unnecessary capabilities.
  • Low · Systemd service file security — client/innernet@.service, server/innernet-server@.service. Service files exist (client/innernet@.service, server/innernet-server@.service) for systemd integration. Without content visibility, unable to verify security hardening options like PrivateTmp, NoNewPrivileges, ReadOnlyPaths, etc. Fix: Add security hardening directives: PrivateTmp=yes, NoNewPrivileges=yes, PrivateDevices=yes, ProtectSystem=strict, ReadOnlyPaths=/, ProtectHome=yes. Run with minimal required permissions.
  • Low · WireGuard key management not visible — client-core/src/interface.rs, server/src/initialize.rs. As a WireGuard-based VPN system, private key handling is critical. Key storage, rotation, and access control mechanisms are not evident from file structure alone. Fix: Store WireGuard keys securely (encrypted at rest). Implement key rotation policies. Restrict file permissions to 0600. Consider using HSM or secure key management service for servers. Never log or

LLM-derived; treat as a starting point, not a security audit.


Generated by RepoPilot. Verdict based on maintenance signals — see the live page for receipts. Re-run on a new commit to refresh.

Healthy signals · tonarino/innernet — RepoPilot