mirror of https://github.com/telemt/telemt.git
91be148b72
This commit introduces a comprehensive set of improvements to enhance the security, reliability, and configurability of the proxy server, specifically targeting adversarial resilience and high-load concurrency. Security & Cryptography: - Zeroize MTProto cryptographic key material (`dec_key`, `enc_key`) immediately after use to prevent memory leakage on early returns. - Move TLS handshake replay tracking after full policy/ALPN validation to prevent cache poisoning by unauthenticated probes. - Add `proxy_protocol_trusted_cidrs` configuration to restrict PROXY protocol headers to trusted networks, rejecting spoofed IPs. Adversarial Resilience & DoS Mitigation: - Implement "Tiny Frame Debt" tracking in the middle-relay to prevent CPU exhaustion from malicious 0-byte or 1-byte frame floods. - Add `mask_relay_max_bytes` to strictly bound unauthenticated fallback connections, preventing the proxy from being abused as an open relay. - Add a 5ms prefetch window (`mask_classifier_prefetch_timeout_ms`) to correctly assemble and classify fragmented HTTP/1.1 and HTTP/2 probes (e.g., `PRI * HTTP/2.0`) before routing them to masking heuristics. - Prevent recursive masking loops (FD exhaustion) by verifying the mask target is not the proxy's own listener via local interface enumeration. Concurrency & Reliability: - Eliminate executor waker storms during quota lock contention by replacing the spin-waker task with inline `Sleep` and exponential backoff. - Roll back user quota reservations (`rollback_me2c_quota_reservation`) if a network write fails, preventing Head-of-Line (HoL) blocking from permanently burning data quotas. - Recover gracefully from idle-registry `Mutex` poisoning instead of panicking, ensuring isolated thread failures do not break the proxy. - Fix `auth_probe_scan_start_offset` modulo logic to ensure bounds safety. Testing: - Add extensive adversarial, timing, fuzzing, and invariant test suites for both the client and handshake modules. |
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| .. | ||
| LICENSE | ||
| fronting-splitting | ||
| middle-end/KDF-internals | ||
| model | ||
| API.md | ||
| CONFIG_PARAMS.en.md | ||
| FAQ.en.md | ||
| FAQ.ru.md | ||
| OPENBSD.en.md | ||
| QUICK_START_GUIDE.en.md | ||
| QUICK_START_GUIDE.ru.md | ||
| TUNING.de.md | ||
| TUNING.en.md | ||
| TUNING.ru.md | ||
| XRAY-SINGBOX-ROUTING.ru.md | ||