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aa787a558c
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feat: traffic intel hot path, SYN RST-challenge, XDP environment diagnostics
Traffic Intel (was dead code, now wired):
- TrafficHook in listener accept path: cps/pps windows -> AttackDetector
- auto-ban IPs below reputation threshold under attack ([detect.autoban])
- AlertDispatcher: webhook on attack state transition only (dedup), metrics
AUTO_BANS_TOTAL / INTEL_* ; [detect.alert].webhook_url
XDP SYN RST-challenge (Oubliette pattern, off by default):
- G_SYN_CHALLENGE_ENABLED=0: kernel replies bad-ACK SYN-ACK via XDP_TX,
spoofed sources stay silent, live clients answer RST with secret echo ->
challenge_verified (LRU, sliding TTL); brute-force of marker impossible
- maps challenge_verified/challenge_pending, STAT_CHALLENGE_*, all logic
in xdp/core/syn_challenge.h (221 lines)
XDP diagnostics (src/xdp/diagnostics.rs):
- EnvironmentReport: kernel version/BTF/driver->AttachMode verdict,
fail-fast before load on unsupported kernels; wired into CLI
- SystemProbe trait for kernel-less testing
fix: .gitignore 'bin/' matched src/bin/ — rampart.rs was never committed
cargo build/clippy(-D warnings, --features xdp)/test green: 107 tests
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2026-08-24 10:11:10 +02:00 |
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