2b278390ee
tun: wire TUN scheme into event loop + SLAAC RS/RA protocol
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TUN integration:
- Smolnetd gains tun_scheme: TunScheme field and tun_file parameter
- on_tun_scheme_event() handler added (scheme event → poll)
- main.rs: EventSource::TunScheme, subscription, dispatch
- TUN devices can now receive and transmit packets through the netstack
SLAAC (RFC 4862):
- build_router_solicitation(): ICMPv6 Type 133 with source LL address option
- parse_router_advertisement(): ICMPv6 Type 134 with Prefix Information
option extraction (on-link, autonomous, lifetimes)
- Slacd state machine: Idle → Solicited → Configured
tick() drives RS retransmit (3 retries, 5s timeout)
process_ra() extracts autonomous /64 prefixes
- ParsedRa, RaPrefix public structs for integration with IPv6 stack
Reference: Linux 7.1 ndisc_send_rs() / ndisc_router_discovery() /
addrconf_prefix_rcv()
2026-07-08 13:47:04 +03:00
30db94c970
stp: integrate 802.1D Spanning Tree Protocol into BridgeDevice
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Adds loop prevention to Ethernet bridges:
- BridgeDevice gains stp: Option<StpState> field
- enable_stp(priority, mac) method initializes STP per-bridge
- BPDU frames (dst 01:80:c2:00:00:00) intercepted in recv(),
processed locally, never forwarded
- STP hello timer sends periodic BPDUs on all ports (root bridge)
- flood() skips STP-blocked ports
- build_bpdu() made public for bridge integration
- stp module declared in link/mod.rs
The recv() flow now: age MACs → check STP hello timer →
poll ports → detect BPDU (absorb) → normal frame (learn + forward).
Reference: Linux 7.1 net/bridge/br_stp.c, br_stp_bpdu.c, br_stp_timer.c
2026-07-08 13:38:38 +03:00
bb3e36e4e0
restore: networking stack files from reflog (Phases 1-6)
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Recovered from reflog commits 1c80937e and d0ecc067
2026-07-08 13:27:49 +03:00
Red Bear OS