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5 Commits

Author SHA1 Message Date
Red Bear OS 596e73a92e bridge: 5 unit tests for FDB learn/age/lookup 
Bridge MAC learning tests:
- learn_stores_unicast_mapping: stored MAC resolves on correct port
- learn_ignores_multicast: broadcast/multicast never enters FDB
- learn_replaces_existing_entry_on_new_port: MAC moves update port
- age_entries_removes_expired_macs: 300s timeout respected
- lookup_returns_none_for_unknown_mac: unknown MAC returns None

Total tests across netstack: 20 (5 table + 4 conntrack + 6 nat + 5 bridge)
All passing.
 2026-07-08 21:20:32 +03:00
Red Bear OS 998593f243 stats: add statistics() to bridge, bond, and tun devices 
Bridge: statistics() aggregates rx/tx bytes+packets from all member ports.
arp_stats() delegates to each port, showing per-port breakdown.

Bond: statistics() aggregates from all slaves (active+standby).
arp_stats() delegates to each slave.

TUN: statistics() now returns live counters tracked during send()/recv().
rx_bytes, rx_packets, tx_bytes, tx_packets increment per-packet.

Previously these devices returned Stats::default() (all zeros).
Now netcfg /ifaces/*/stats shows real data for bridge, bond, tun.
 2026-07-08 16:00:26 +03:00
Red Bear OS 107e3b6851 stp: enforce blocking on unicast send + enhanced stats display 
BridgeDevice STP hardening:
- send(): check STP blocking before unicast forwarding (host-originated)
- recv(): check STP blocking before unicast forwarding (switched frames)
- Previously only flood() checked STP; unicast forwarding bypassed it.
  A blocked port must never forward any traffic — STP semantics now correct.

netcfg stats enhancement:
- Per-interface stats now include mtu= and link= fields alongside counters
- Applies to both eth0 and loopback
- Enables bandwidth monitoring tools to self-discover MTU/link state
 2026-07-08 14:53:08 +03:00
Red Bear OS 30db94c970 stp: integrate 802.1D Spanning Tree Protocol into BridgeDevice 
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
Red Bear OS bb3e36e4e0 restore: networking stack files from reflog (Phases 1-6) 
Recovered from reflog commits 1c80937e and d0ecc067 after force-push data loss.
Includes: filter/, icmp_error.rs, slaac.rs, bond.rs, bridge.rs, gre.rs, ipip.rs,
qdisc.rs, tun.rs, vlan.rs, vxlan.rs, netfilter.rs, tun.rs, conntrack.rs, nat.rs,
rule.rs, table.rs, redbear-ufw/, dhcpv6d/, netdiag/ — 39 files total.
 2026-07-08 13:27:49 +03:00