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147 Commits

Author SHA1 Message Date
Alexey fb47ad149c Rustfmt 2026-08-22 16:31:49 +03:00
Alexey 7f4b87bea4 Redesign runtime w/ include-aware config + Module Split + Listener Lifecycle + Atomic Reload 2026-08-22 16:13:25 +03:00
Alexey 189e10800a Hardened listener reload + config persistence + SYN Limit startup safety 2026-08-22 13:45:57 +03:00
Alexey 25e76a3afb Merge pull request #884 from vgrebenschikov/feature/synlimit-pf-support 
Add PF synlimit backend
 2026-08-12 21:17:40 +03:00
Vladimir Grebenshchikov e2eec67a33 Add PF synlimit backend 
Implement synlimit = "pf" for PF-based firewalls using per-listener source tracking rules in a Telemt-owned anchor.

PF evaluates max-src-conn-rate through source tracking when creating
tates for completed TCP connections. Telemt installs a rate-limited pass
rule followed by a reject fallback rule in the listener anchor:

  - under-limit new connections create PF state and pass;
  - over-limit new connections fall through to block return-rst;
  - access resumes automatically when the source rate drops below the configured window.

Keep Linux iptables/nftables behavior unchanged.
PF maps synlimit_hitcount / synlimit_seconds to max-src-conn-rate and intentionally has
no direct equivalent for Linux-only burst/hashlimit knobs.
 2026-07-20 09:43:46 +02:00
Alexey 61ec46c2db Merge pull request #871 from xaer981/fix/client-mss-bulk 
fix(server): client_mss_bulk — fragment only ServerHello, keep bulk MSS from start
 2026-07-18 14:02:03 +03:00
Alexey 73afeccae1 Rustfmt 2026-07-13 12:20:24 +03:00
Yaroslav Petrovskikh 5e9d99bb4d fix(server): fragment only the initial FakeTLS response 2026-07-13 11:26:48 +03:00
Alexey 96425f15c8 Bound Direct relay buffers with an adaptive global memory envelope 
Co-Authored-By: brekotis <93345790+brekotis@users.noreply.github.com>
 2026-07-11 20:56:54 +03:00
Alexey d4c4980e5a Bound ME writer queues by resident payload bytes 
Co-Authored-By: brekotis <93345790+brekotis@users.noreply.github.com>
 2026-07-11 18:43:42 +03:00
Alexey 50538d234e CidrRateLimitKey with IpNetwork parsing and serialization added 2026-07-04 10:54:55 +03:00
Alexey 558f352a57 Synlimit V2 2026-06-28 12:53:28 +03:00
Alexey 87c82c2a63 Add bounded file logging rotation and retention #832 
Co-Authored-By: brekotis <93345790+brekotis@users.noreply.github.com>
 2026-06-24 00:16:02 +03:00
Alexey 840713a359 Merge pull request #847 from AndreyOsipuk/feat/client-mss-relay 
feat(server): client_mss_bulk — fragment only the handshake, restore MSS for bulk data (cuts pps)
 2026-06-20 22:10:04 +03:00
Andrey Osipuk 50b67a93d6 feat(server): client_mss_bulk — raise MSS after handshake to cut pps 
client_mss (e.g. "tspu", MSS=92) fragments the whole connection to evade
DPI on the ServerHello, but it also fragments bulk payload, multiplying
outgoing packets-per-second ~10x. On hosts whose abuse detection counts
pps (not bandwidth) this trips packet-flood limits.

Add an optional [server].client_mss_bulk: keep the low client_mss for the
handshake (ServerHello stays fragmented => DPI bypass intact), then raise
the client socket MSS to client_mss_bulk once the connection enters the
post-handshake (bulk transfer) phase, so bulk data uses normal-size
segments and pps drops back to normal. Same preset/int grammar as
client_mss. Opt-in: when unset, the handshake MSS is kept for the whole
connection (unchanged behavior).

Linux-only (setsockopt TCP_MAXSEG via raw fd, mirroring TCP_USER_TIMEOUT);
no-op on other unix. Documented in CONFIG_PARAMS.{en,ru}.
 2026-06-19 11:11:01 +03:00
Alexey 37d0184a0b Implement shared MTProto framing and ME address role separation 
Co-Authored-By: brekotis <93345790+brekotis@users.noreply.github.com>
 2026-06-15 08:50:08 +03:00
Alexey 9a3ff726b2 Use token-bucket SYN limiter backends 
Co-Authored-By: brekotis <93345790+brekotis@users.noreply.github.com>
 2026-06-12 01:27:03 +03:00
Alexey 942882f9de SYN Limiter interval and hitcount in Config 
Co-Authored-By: brekotis <93345790+brekotis@users.noreply.github.com>
 2026-06-12 00:29:23 +03:00
Alexey 1cbde70a14 Add per-listener SYN limiter for Netfilter control 
Co-Authored-By: brekotis <93345790+brekotis@users.noreply.github.com>
 2026-06-11 23:58:48 +03:00
Alexey db7ff8737c Add dynamic SNI mask target mode 
Co-Authored-By: brekotis <93345790+brekotis@users.noreply.github.com>
 2026-06-11 10:36:37 +03:00
Alexey 27a5f5a4ec MSS Tuning with config 
Co-Authored-By: brekotis <93345790+brekotis@users.noreply.github.com>
 2026-06-06 12:11:05 +03:00
Alexey 462215b53c Dual-stack fixes for Upstreams by #798 
Co-Authored-By: brekotis <93345790+brekotis@users.noreply.github.com>
 2026-06-01 19:50:26 +03:00
Alexey 2264980926 User Disabler in API by #814 + Consistent Listeners in API by #800 2026-05-31 11:17:18 +03:00
Alexey 98c985091c Decomposing hot-path modules into focused submodules 
Signed-off-by: Alexey <247128645+axkurcom@users.noreply.github.com>
 2026-05-21 18:03:55 +03:00
Alexey 70d02910b7 Fixes for SILENT-mode by #792 
Signed-off-by: Alexey <247128645+axkurcom@users.noreply.github.com>
 2026-05-20 10:54:37 +03:00
Alexey 914f141715 Exclusive Mask + Startup Speed-up 
Signed-off-by: Alexey <247128645+axkurcom@users.noreply.github.com>
 2026-05-19 22:17:59 +03:00
Alexey 3f9ac87daf Bounded Rate Bursts + Cancel ME Waits 2026-05-10 13:33:54 +03:00
Alexey f0f2bc0482 Limit&Quota Saving as File + API 2026-05-08 14:38:24 +03:00
Alexey 658a565cb3 Merge pull request #770 from konstpic/feat/user-source-deny-list 
feat(access): add per-user source IP deny list checks
 2026-05-07 11:56:54 +03:00
Alexey 4995e83236 Config Strict and Validator 2026-05-06 20:38:55 +03:00
Konstantin Pichugin b859fb95c3 feat(access): add per-user source IP deny list checks 
Add access.user_source_deny and enforce it in TLS and MTProto handshake paths after successful authentication to fail closed for blocked source IPs.
 2026-05-06 19:11:18 +03:00
Alexey 876b74ebf7 Hot-path Cleanup and Timeout Invariants 2026-04-29 23:16:11 +03:00
Alexey 67357310f7 TLS 1.2/1.3 Correctness + Full ServerHello + Rustfmt 
Co-Authored-By: brekotis <93345790+brekotis@users.noreply.github.com>
 2026-04-23 21:29:18 +03:00
Alexey 09310ff284 Unlimited mask_relay_max_bytes 2026-04-21 11:30:58 +03:00
Alexey 926e3aa987 Fairness Regression fixes 2026-04-21 01:11:43 +03:00
lie-must-die 7bbed133ee Add RejectHandshake variant for TLS configuration 
Added a new variant 'RejectHandshake' to handle TLS handshake rejection with a specific alert.
 2026-04-19 12:40:10 +03:00
Alexey d72cfd6bc4 Merge branch 'flow' into feature/configurable-proxy-confi-urls 2026-04-17 19:44:46 +03:00
Alexey 093faed0c2 Conntrack Control for Docker 2026-04-17 19:06:18 +03:00
Dmitry Zarva 2a168b2600 feat: make URLS to obtain proxy_secret, getProxyConfig, getProxyConfigV6 files optionally configurable 2026-04-17 13:04:46 +00:00
Alexey 21ca1014ae Drafting Traffic Control 
Co-Authored-By: brekotis <93345790+brekotis@users.noreply.github.com>
 2026-04-15 13:14:45 +03:00
Alexey d7a0319696 Server.Listeners + Upstream V4/V6 
Co-Authored-By: brekotis <93345790+brekotis@users.noreply.github.com>
 2026-04-15 01:32:49 +03:00
Alexey 57dca639f0 Gray Action for API by #630 
Co-Authored-By: brekotis <93345790+brekotis@users.noreply.github.com>
 2026-04-14 19:19:06 +03:00
Alexey 13f86062f4 BINDTODEVICE for Direct Upstreams by #683 
Co-Authored-By: brekotis <93345790+brekotis@users.noreply.github.com>
 2026-04-14 18:32:06 +03:00
Batmaev 26c40092f3 rm hardcoded mask timeouts 2026-04-12 10:46:18 +03:00
sintanial ddeda8d914 feat: add configurable RST-on-close mode for client sockets 
Add `rst_on_close` config option (off/errors/always) to control
SO_LINGER(0) behaviour on accepted TCP connections.

- `off` (default): normal FIN on all closes, no behaviour change.
- `errors`: SO_LINGER(0) set on accept, cleared after successful
  handshake auth. Pre-handshake failures (scanners, DPI probes,
  timeouts) send RST instead of FIN, eliminating FIN-WAIT-1 and
  orphan socket accumulation. Authenticated relay sessions still
  close gracefully with FIN.
- `always`: SO_LINGER(0) on accept, never cleared — all closes
  send RST regardless of handshake outcome.
 2026-04-10 05:01:38 +03:00
Alexey 13dc1f70bf Accept as unknown_sni_action 2026-04-06 12:03:06 +03:00
Alexey 7f0057acd7 Conntrack Control Method 
Co-Authored-By: brekotis <93345790+brekotis@users.noreply.github.com>
 2026-04-04 11:28:32 +03:00
Alexey b8cf596e7d Admission-timeouts + Global Each TCP Connections 
Co-Authored-By: brekotis <93345790+brekotis@users.noreply.github.com>
 2026-03-31 11:14:55 +03:00
Alexey 65da1f91ec Drafting fixes for Apple/XNU Darwin Connectivity issues 
Co-Authored-By: Aleksandr Kalashnikov <33665156+sleep3r@users.noreply.github.com>
 2026-03-30 23:35:41 +03:00
Roman Martynov 618bc7e0b6 Merge branch 'flow' into fix/apply-tg-connect-timeout-upstream 2026-03-28 14:27:47 +03:00