mirror of
https://github.com/jmcorgan/fips.git
synced 2026-07-30 19:46:15 +00:00
Johnathan Corgan
d29da442ac
Implement raw Ethernet transport using AF_PACKET SOCK_DGRAM on Linux with EtherType 0x88B5 (IEEE experimental range) and 1-byte frame type prefix (0x00=data, 0x01=beacon). Transport implementation: - EthernetConfig with interface, ethertype, MTU, buffer sizes, and four independent discovery knobs (discovery, announce, auto_connect, accept_connections) - PacketSocket/AsyncPacketSocket wrappers with ioctl helpers for interface index, MAC address, and MTU queries - EthernetTransport with Transport trait impl, async start/stop/send, receive loop dispatching data frames and discovery beacons - Discovery beacons (34 bytes: type + version + x-only pubkey) with DiscoveryBuffer for peer accumulation and dedup - Atomic statistics counters (frames, bytes, errors, beacons) - Platform-gated with #[cfg(target_os = "linux")] Transport-layer discovery integration: - Promote auto_connect() and accept_connections() to Transport trait with default implementations and TransportHandle dispatch - Extract initiate_connection() so both static peer config and discovery auto-connect share the same handshake initiation path - Add poll_transport_discovery() to the tick handler to drain discovery buffers and auto-connect to discovered peers - Enforce accept_connections() in handle_msg1() — transports with accept_connections=false silently drop inbound handshakes Node integration: - create_transports() handles Ethernet named instances - resolve_ethernet_addr() parses "interface/mac" address format - transport_mtu() generalized for multi-transport operation Test harness: - VethPair RAII struct for veth pair lifecycle management - Three #[ignore] integration tests requiring root/CAP_NET_RAW: two-node handshake, data exchange, mixed transport coexistence - Chaos harness: transport-aware topology model, VethManager for veth pairs between Docker containers, Ethernet-aware config gen, netem split (HTB+u32 for UDP, root netem for veth), transport-aware link flaps and node churn with veth re-setup - Container entrypoint waits for configured Ethernet interfaces before starting FIPS (handles veth creation timing) - New scenarios: ethernet-only (4-node ring), ethernet-mesh (6-node mixed UDP+Ethernet with netem and link flaps) Documentation: - fips-transport-layer.md: Ethernet section, beacon discovery, WiFi compatibility, updated discovery state, trait surface additions, implementation status table - fips-configuration.md: Ethernet parameter table, named instances, peer address format, mixed UDP+Ethernet example, complete reference - fips-wire-formats.md: Ethernet frame type prefix note
37 lines
1.2 KiB
Docker
37 lines
1.2 KiB
Docker
FROM debian:bookworm-slim
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RUN apt-get update && \
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apt-get install -y --no-install-recommends \
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iproute2 iputils-ping dnsutils openssh-client openssh-server iperf3 \
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dnsmasq curl python3 rsync && \
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rm -rf /var/lib/apt/lists/*
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# Setup SSH server with no authentication (test only!)
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RUN mkdir -p /var/run/sshd && \
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ssh-keygen -A && \
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sed -i 's/#PermitRootLogin prohibit-password/PermitRootLogin yes/' /etc/ssh/sshd_config && \
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sed -i 's/#PermitEmptyPasswords no/PermitEmptyPasswords yes/' /etc/ssh/sshd_config && \
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sed -i 's/UsePAM yes/UsePAM no/' /etc/ssh/sshd_config && \
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passwd -d root
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# dnsmasq: forward .fips to FIPS daemon, everything else to Docker DNS
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RUN printf '%s\n' \
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'port=53' \
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'listen-address=127.0.0.1' \
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'bind-interfaces' \
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'server=/fips/127.0.0.1#5354' \
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'server=127.0.0.11' \
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'no-resolv' \
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>> /etc/dnsmasq.conf
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COPY fips fipsctl /usr/local/bin/
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RUN chmod +x /usr/local/bin/fips /usr/local/bin/fipsctl
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COPY entrypoint.sh /usr/local/bin/entrypoint.sh
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RUN chmod +x /usr/local/bin/entrypoint.sh
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# Static web page served via Python HTTP server
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RUN printf 'Fuck IPs!\n' > /root/index.html
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ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]
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