loki5512344
8b35ac693c
Verified on real kernel 5.15.0-186 (VDS, netns+veth, generic XDP): - verifier accepts program, all maps created (BTF ok) - legit TCP passes end-to-end; conntrack entry cleaned on close - stats counters increment correctly; prefix_stats /24 key populated - LPM blacklist ban blocks traffic with retransmit drops
47 lines
2.2 KiB
C
47 lines
2.2 KiB
C
#ifndef RAMPART_CONFIG_H
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#define RAMPART_CONFIG_H
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// ⚙️ Runtime configurable globals (patched by Rust loader)
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// These are volatile const — compiler replaces reads with immediate values
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// after loader writes to .rodata section
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// ── Port range ──
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// Protected port range: packets to ports OUTSIDE this range bypass the
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// filter (XDP_PASS before any counting/filtering). Default protects all
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// TCP/UDP ports; narrow it via loader patching for dedicated-edge setups.
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static volatile const __u16 G_START_PORT = 1;
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static volatile const __u16 G_END_PORT = 65535;
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// ── SYN throttle ──
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static volatile const __u32 G_SYN_HIT_COUNT = 10; // max SYNs / window
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static volatile const __u64 G_SYN_WINDOW_NS = 3000000000ULL; // 3 sec
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static volatile const __u64 G_SYN_BAN_DURATION_NS = 60000000000ULL; // 60 sec
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// ── Idle timeouts ──
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static volatile const __u64 G_CONNTRACK_IDLE_NS = 30000000000ULL; // 30 sec
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static volatile const __u64 G_PLAYER_IDLE_NS = 120000000000ULL; // 120 sec
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// ── Blacklist default ban duration ──
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static volatile const __u64 G_BAN_DURATION_NS = 300000000000ULL; // 5 min
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// ── Max out-of-order packets before dropping connection ──
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static volatile const __u8 G_MAX_OUT_OF_ORDER = 4;
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// ── UDP policy ──
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static volatile const __u8 G_UDP_POLICY = 0; // 0 = pass, 1 = drop, 2 = rate-limit
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static volatile const __u32 G_UDP_HIT_COUNT = 100; // max packets / window
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static volatile const __u64 G_UDP_WINDOW_NS = 1000000000ULL; // 1 sec
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// ── Feature flags ──
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static volatile const __u8 G_FEATURE_SYN_THROTTLE = 1;
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static volatile const __u8 G_FEATURE_EVENTS = 1;
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// ── RST-challenge (Oubliette liveness proof) ──
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// 0 = disabled: single branch, zero cost for legitimate traffic.
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// Secret is patched by the loader at attach time (default is a placeholder).
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static volatile const __u8 G_SYN_CHALLENGE_ENABLED = 0;
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static volatile const __u64 G_CHALLENGE_SECRET = 0xA5A55A5A5A5AA5A5ULL;
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static volatile const __u32 G_CHALLENGE_TIMEOUT_MS = 3000; // pending TTL
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static volatile const __u64 G_CHALLENGE_VERIFIED_TTL_NS = 300000000000ULL; // 5 min
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#endif /* RAMPART_CONFIG_H */
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