Commit Graph

816 Commits

Author SHA1 Message Date
JackDoan ae17513bbf more fixes! 2026-07-24 16:39:03 -05:00
JackDoan 1aca2f75ae more fixes! 2026-07-24 16:39:03 -05:00
JackDoan c7918d1096 lint 2026-07-24 16:39:03 -05:00
JackDoan 44dd2e9ca4 datapath: fix 12 correctness findings from tun/UDP offload review
Multi-disciplinary correctness review of the batched tun / GSO-GRO / sendmmsg
rework. Each fix has a regression test; the merged tree builds on
linux/darwin/openbsd/windows/freebsd/netbsd, vets clean, passes the unit and
e2e suites, and is -race clean.

Critical:
- C1 zero-length inner UDP datagram no longer panics the process (remote DoS):
  the UDP coalescer routes payLen==0 to passthrough instead of seeding a GSO
  slot, and WriteGSO skips empty payload iovecs as defense in depth.
- C2 segmenter no longer corrupts inner headers when gsoSize < headerLen: the
  L3+L4 header is snapshotted once and each segment stamped from the copy,
  replacing the destructive overlapping in-place slide (SegmentTCP + SegmentUDP).

High:
- H1 applyOuterECN updates the IPv4 header checksum (RFC 1624 incremental) when
  folding outer CE into the inner ToS, so passthrough packets are no longer
  dropped by the peer stack.
- H2 the GRO reject path caps the borrowed RX segment ([:n:n]) so a reject can
  no longer overrun into the next coalesced segment's Nebula header. Note:
  oversized ICMPv6 rejects that need >16B beyond the segment are now refused
  rather than sent under GRO (safe; see TOFIX.md for the scratch-buffer follow-up).
- H3 WriteBatch falls back to per-packet WriteTo for a chunk when writeSockaddr
  fails, so one bad-family destination costs only its own packet, not the batch.
- H4 UserDevice.Readers returns N distinct queue wrappers with private buffers
  (sharing the pipes) so concurrent readers no longer race/overwrite borrowed
  packet bytes.
- H5 Poll.Close / Offload.Close no longer null t.fd (matching master's
  tunFile.Close), removing the data race with a concurrent readOne load.

Medium/Low:
- M1 the UDP GSO 127-segment gate moved from kernel >=5.5 to >=6.9 (the real
  UDP_MAX_SEGMENTS 64->128 threshold), avoiding EINVAL + per-packet fallback on
  5.5-6.8 kernels.
- M2 NewMultiQueueReader replays the offload mask newTun actually negotiated
  instead of the TSO-only mask, so adding a queue no longer disables USO
  device-wide; the advertised USO capability derives from the same mask.
- M3 the shutdown eventfd is closed in pollQueueSet.Close / offloadQueueSet.Close
  (double-close guarded), fixing the per-lifecycle fd leak.
- M4 dual-stack ECN selects the cmsg by address family, not socket family: RX
  parseRecvCmsg reads both IP_TOS and IPV6_TCLASS; TX writeEntryCmsg stamps
  IP_TOS for v4/v4-mapped dests and IPV6_TCLASS for v6 (on-host verified).
- L1 newPoll no longer closes the fd on failure (matching newOffload), removing
  the double-close on QueueSet.Add error.
2026-07-24 16:39:03 -05:00
JackDoan 733dc06192 make mobile happy 2026-07-24 16:39:03 -05:00
JackDoan 7fee3a97b2 correctly shutdown the pprofserver 2026-07-24 16:39:03 -05:00
JackDoan 1e218737dc SendVia: don't emit a zero-length packet when prepareSendVia fails 2026-07-24 16:39:03 -05:00
JackDoan 243c920f88 adapt Control lifecycle tests to the batched tio.Queue Device interface 2026-07-24 16:39:03 -05:00
JackDoan 9bdab873f2 udp setsockopt correctness fixes 2026-07-24 16:39:03 -05:00
JackDoan a081fba023 use less ram pls 2026-07-24 16:39:03 -05:00
JackDoan b50d6276e3 clean up a comment a bit 2026-07-24 16:39:03 -05:00
JackDoan 3b16f1adb6 drop in a logger 2026-07-24 16:39:03 -05:00
JackDoan 410bac9688 go mod tidy 2026-07-24 16:39:03 -05:00
JackDoan 22adae0b8c lint 2026-07-24 16:39:03 -05:00
JackDoan f7cc437d88 fix 2026-07-24 16:39:03 -05:00
JackDoan a66af843d1 faster
grr heap usage!
2026-07-24 16:38:32 -05:00
JackDoan 67a742ddfb no 2026-07-24 16:38:32 -05:00
JackDoan 5681e510c4 use clear() 2026-07-24 16:38:32 -05:00
JackDoan 9104dc4c34 remove udp-level RX reorder buf 2026-07-24 16:38:32 -05:00
JackDoan f31f6c5d1f make relays take the fast path maybe 2026-07-24 16:37:30 -05:00
JackDoan 264a25337b scoot pinning around 2026-07-24 16:37:30 -05:00
JackDoan 694414771c scoot stuff around for e2e 2026-07-24 16:37:30 -05:00
JackDoan ca84bcb38f disable sort-on-RX, CPU pinning seems to work for now 2026-07-24 16:37:30 -05:00
JackDoan f04dd3bcc3 switch to ASM vector checksum 2026-07-24 16:37:30 -05:00
JackDoan 187afac7b5 GSO/GRO offloads, with TCP+ECN and UDP support 2026-07-24 16:37:30 -05:00
JackDoan e7b121c82f better and batched tun interface 2026-07-24 16:33:52 -05:00
Nate Brown 72bf111209 Add an e2e Drop exit type and a roaming recovery measurement (#1819)
smoke-extra / freebsd-amd64 (push) Failing after 15s
smoke-extra / linux-amd64-ipv6disable (push) Failing after 15s
smoke-extra / netbsd-amd64 (push) Failing after 14s
smoke-extra / openbsd-amd64 (push) Failing after 15s
smoke-extra / linux-386 (push) Failing after 16s
smoke / Run multi node smoke test (push) Failing after 1m37s
Build and test / Static checks (push) Successful in 18s
Build and test / Test linux (push) Failing after 58s
Build and test / Test linux-boringcrypto (push) Failing after 2m45s
Build and test / Test linux-pkcs11 (push) Failing after 2m10s
Build and test / Cross-build linux-arm (push) Successful in 3m11s
Build and test / Cross-build linux-mips (push) Successful in 3m53s
Build and test / Cross-build linux-other (push) Successful in 3m16s
Build and test / Cross-build windows (push) Successful in 1m2s
Build and test / Cross-build freebsd (push) Successful in 1m36s
Build and test / Cross-build netbsd (push) Successful in 1m36s
Build and test / Cross-build openbsd (push) Successful in 1m37s
Build and test / Cross-build mobile (push) Successful in 3m23s
smoke-extra / Run windows smoke test (push) Has been cancelled
Build and test / Test macos (push) Has been cancelled
Build and test / Test windows (push) Has been cancelled
Build and test / CI status (push) Has been cancelled
2026-07-23 17:02:02 -05:00
Nate Brown 1617897043 v1.11.0 changelog (#1792)
smoke-extra / freebsd-amd64 (push) Failing after 25s
smoke-extra / linux-amd64-ipv6disable (push) Failing after 13s
smoke-extra / netbsd-amd64 (push) Failing after 13s
smoke-extra / openbsd-amd64 (push) Failing after 11s
smoke-extra / linux-386 (push) Failing after 12s
smoke / Run multi node smoke test (push) Failing after 1m39s
Build and test / Static checks (push) Successful in 2m9s
Build and test / Test linux (push) Failing after 1m3s
Build and test / Test linux-boringcrypto (push) Failing after 2m48s
Build and test / Test linux-pkcs11 (push) Failing after 2m0s
Build and test / Cross-build linux-arm (push) Successful in 3m17s
Build and test / Cross-build linux-mips (push) Successful in 4m5s
Build and test / Cross-build linux-other (push) Successful in 3m23s
Build and test / Cross-build windows (push) Successful in 1m4s
Build and test / Cross-build freebsd (push) Successful in 1m42s
Build and test / Cross-build netbsd (push) Successful in 1m38s
Build and test / Cross-build openbsd (push) Successful in 1m43s
Build and test / Cross-build mobile (push) Successful in 3m34s
smoke-extra / Run windows smoke test (push) Has been cancelled
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Build and test / Test windows (push) Has been cancelled
Build and test / CI status (push) Has been cancelled
v1.11.0
2026-07-23 13:13:45 -05:00
Nate Brown f8775bb6ca Use go 1.26 (latest 1.26.5) (#1818) 2026-07-23 10:36:20 -05:00
Nate Brown 15f0f0d5d0 Be less verbose with handshake send errors (#1810) 2026-07-23 09:26:45 -05:00
Nate Brown 7902ce674e Rebind for MacOS (#1816)
Co-authored-by: Jack Doan <me@jackdoan.com>
2026-07-23 09:26:24 -05:00
Nate Brown c2fbe215e6 Fix a test race, make dns server reload/restart safer (#1815)
smoke-extra / freebsd-amd64 (push) Failing after 54s
smoke-extra / linux-amd64-ipv6disable (push) Failing after 11s
smoke-extra / netbsd-amd64 (push) Failing after 11s
smoke-extra / openbsd-amd64 (push) Failing after 22s
smoke-extra / linux-386 (push) Failing after 23s
smoke / Run multi node smoke test (push) Failing after 1m26s
Build and test / Static checks (push) Successful in 2m11s
Build and test / Test linux (push) Failing after 1m7s
Build and test / Test linux-boringcrypto (push) Failing after 2m41s
Build and test / Test linux-pkcs11 (push) Failing after 2m2s
Build and test / Cross-build linux-arm (push) Successful in 3m5s
Build and test / Cross-build linux-mips (push) Successful in 3m48s
Build and test / Cross-build linux-other (push) Successful in 3m8s
Build and test / Cross-build windows (push) Successful in 1m4s
Build and test / Cross-build freebsd (push) Successful in 1m36s
Build and test / Cross-build netbsd (push) Successful in 1m33s
Build and test / Cross-build openbsd (push) Successful in 1m32s
Build and test / Cross-build mobile (push) Successful in 3m16s
smoke-extra / Run windows smoke test (push) Has been cancelled
Build and test / Test macos (push) Has been cancelled
Build and test / Test windows (push) Has been cancelled
Build and test / CI status (push) Has been cancelled
2026-07-22 15:05:10 -05:00
dependabot[bot] 94ac6db4ca Bump the golang-x-dependencies group across 1 directory with 5 updates (#1800)
Bumps the golang-x-dependencies group with 3 updates in the / directory: [golang.org/x/crypto](https://github.com/golang/crypto), [golang.org/x/net](https://github.com/golang/net) and [golang.org/x/sync](https://github.com/golang/sync).


Updates `golang.org/x/crypto` from 0.53.0 to 0.54.0
- [Commits](https://github.com/golang/crypto/compare/v0.53.0...v0.54.0)

Updates `golang.org/x/net` from 0.56.0 to 0.57.0
- [Commits](https://github.com/golang/net/compare/v0.56.0...v0.57.0)

Updates `golang.org/x/sync` from 0.21.0 to 0.22.0
- [Commits](https://github.com/golang/sync/compare/v0.21.0...v0.22.0)

Updates `golang.org/x/sys` from 0.46.0 to 0.47.0
- [Commits](https://github.com/golang/sys/compare/v0.46.0...v0.47.0)

Updates `golang.org/x/term` from 0.44.0 to 0.45.0
- [Commits](https://github.com/golang/term/compare/v0.44.0...v0.45.0)

---
updated-dependencies:
- dependency-name: golang.org/x/crypto
  dependency-version: 0.54.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: golang-x-dependencies
- dependency-name: golang.org/x/net
  dependency-version: 0.57.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: golang-x-dependencies
- dependency-name: golang.org/x/sync
  dependency-version: 0.22.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: golang-x-dependencies
- dependency-name: golang.org/x/sys
  dependency-version: 0.47.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: golang-x-dependencies
- dependency-name: golang.org/x/term
  dependency-version: 0.45.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: golang-x-dependencies
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
2026-07-22 15:51:22 -04:00
dependabot[bot] a60350e34e Bump actions/setup-go from 6 to 7 (#1807)
Bumps [actions/setup-go](https://github.com/actions/setup-go) from 6 to 7.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](https://github.com/actions/setup-go/compare/v6...v7)

---
updated-dependencies:
- dependency-name: actions/setup-go
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
2026-07-22 15:49:45 -04:00
John Maguire 58f3b6fda7 Document rootless Nebula in example service script (#1814) 2026-07-21 19:32:33 -04:00
Jack Doan a99699e370 before removing a pending hostinfo in handshake_manager, make sure it's the one we wanted to delete (#1811) 2026-07-21 10:31:00 -05:00
Jack Doan 3615a79b8b add locks around replay window updates (#1802) 2026-07-20 10:28:53 -05:00
Nate Brown 147c202c27 Swap back to a blocking udp socket, test shutdown(2) (#1806)
Co-authored-by: Jack Doan <me@jackdoan.com>
2026-07-17 15:16:45 -05:00
John Maguire e290a6892f Fix relay re-establishment for handshake on Disestablised entry (#1805)
handleOutsideRelayPacket filled ViaSender.remoteIdx with relay.RemoteIndex,
an index from the relay peer's index space, but the rescue in
sendHandshakeResponse looks that value up in relayForByIdx, which is keyed
by local index. The lookup could never hit, so a terminal relay entry left
Disestablished by a one-sided teardown stayed Disestablished even after a
valid handshake arrived over it. The responder's first transmit then failed
to find an Established relay, deleted its only relay entry, and every
subsequent send was silently dropped until dead-tunnel detection forced a
re-handshake.
2026-07-17 11:57:47 -04:00
Nate Brown 6c3972f464 code-sign: default the S3 key-prefix to the calling repo (#1799) 2026-07-13 11:49:59 -05:00
Jack Doan 861d3aabd7 correct directionality of firewall.inbound_action and firewall.outbound_action (#1798) 2026-07-13 08:40:42 -05:00
Jack Doan 86733864fe don't make new relay state on a just-discarded tunnel (#1796) 2026-07-10 12:02:17 -05:00
Nate Brown ab736e4c6b Make Control safe to stop and wait on from any lifecycle state (#1794) 2026-07-10 10:35:17 -05:00
Nate Brown 5ecdd4eaa9 Fix e2e test races when looking at hostmap counts (#1795) 2026-07-09 18:48:14 -05:00
Nate Brown 1b84bd0050 Remove dev fmt.Println (#1793) 2026-07-09 11:04:25 -05:00
Nate Brown 384610f81a hostmap: replace the shared next/prev hostinfo chain with independent per-address lists so divergent or overlapping vpnAddr sets cannot corrupt the map (#1790) 2026-07-09 09:34:30 -05:00
Nate Brown c1eea118f4 fix firewall port/proto bypass in parseV6 from uint8 extension-header length overflow (#1789) 2026-07-07 20:43:26 -05:00
Nate Brown 1e66c0d3ee hostmap: unlink a multi-vpnAddr hostinfo from the shared chain exactly once on delete (#1788) 2026-07-07 17:32:25 -05:00
Nate Brown e5c0fdad8d Darwin and openbsd in line with the other bsds for tun support (#1703) 2026-07-07 17:05:12 -05:00
Nate Brown 7bd0bc285a sshd: guard trustedKeys/trustedCAs with a mutex to fix a concurrent map crash on reload (#1787) 2026-07-07 15:50:06 -05:00