Commit Graph

101 Commits

Author SHA1 Message Date
Dmitri Tikhonov eea998962a Release 2.29.6
- Documentation: describe lsquic internals ("guts").
- Two more fixes to compliance issues found by h3spec.
- Truncate, don't abort, SCIDs larger than 16 bytes (PR #244).
- Several small internal improvements and space optimizations.
2021-03-31 09:38:32 -04:00
Dmitri Tikhonov 99a1ad0f24 Release 2.29.3
- [BUGFIX] Do not send RESET_STREAM if writing to stream is already
  finished.
- perf_client: wait for all ACKs before exiting.
- Improve how generated RESET_STREAM is logged.
- Fix compilation in different combos of adv_tick/conn_stats flags.
- Move qpack warning disablement into src/liblsquic/CMakeLists.txt.
2021-03-03 09:41:42 -05:00
Dmitri Tikhonov 26e8f082c9 Release 2.29.0
- [FEATURE] QUIC and HTTP/3 Internet Draft 34 support and v1 support.
  The latter is turned off by default.
- Drop support for ID-28 and ID-32.
- [BUGFIX] IETF QUIC mini conn receive history (trechist): allow
  unlimited inserts by dropping smallest elements.
- [BUGFIX] gQUIC: set STTL to correct value, issue #226.
- [BUGFIX] Account for poison packet gap when MTU probe was too large.
2021-02-10 08:51:11 -05:00
Dmitri Tikhonov c2faf03244 Release 2.28.0
- [API] lsquic_ssl_sess_to_resume_info() is the new way to get
  session info.
- [API] Add user pointer to ea_generate_scid callback.
- [API] Add lsquic_dcid_from_packet() -- a fast function to parse
  out DCID.
- [API] Add es_max_batch_size to control outgoing packet batch size.
- [BUGFIX] Disallow sending of header while promise is being written.
- [BUGFIX] Flush stream when buffered bytes exhaust stream cap.
- [BUGFIX] Deactivate HQ frame if writing push promise fails.
- Perform sanity check on peer transport parameters and fail the
  handshake if some flow control limits are too low.  This can be
  turned off, see es_check_tp_sanity.
- http_server: fix how requests are read in "hq" mode.
2021-02-03 11:05:50 -05:00
Dmitri Tikhonov 06b2a2363e Release 2.27.1
- [API] New knob to set outgoing packet batch size.
- Aborted connection now become tickable immediately.
- Abort connection when HTTP/3 frame cannot be opened (can only happen
  when malloc fails).
2021-01-06 09:00:05 -05:00
Dmitri Tikhonov 6511378725 Release 2.27.0
- [API] Remove keylog callbacks.  See issue #188.
- Add a bit more ALPN logging.
2020-12-31 07:58:48 -05:00
Dmitri Tikhonov 7f96c7c7f3 Release 2.25.0
- [API, FEATURE] Add es_delay_onclose option to delay on_close until all
  data is ACKed.  Use new function lsquic_stream_has_unacked_data() to
  learn whether peer acknowledged all data written to stream.
- [API] Add optional on_reset() stream callback to get notifications
  when RESET or STOP_SENDING frames are received.
- [BUGFIX] On STOP_SENDING, make conn tickable is _writeable_, not
  readable.
2020-12-04 11:29:14 -05:00
Dmitri Tikhonov f38b395a31 Release 2.24.5
- [FEATURE] Improve Delayed ACKs extension and turn it on by default.
- Limit receive history to a finite amount of memory.
2020-11-24 08:51:36 -05:00
Dmitri Tikhonov 4580fab747 Release 2.24.4
- [BUGFIX] Check whether ECN counts are set in ACK struct before using them.
- [BUGFIX] Calculate TLP timer correctly when only one packet is in flight.
- [BUGFIX] Min RTO delay is 200 milliseconds, not 1 second.
- [BUGFIX] Memory leak in QPACK decoder handler: discard hset when necessary.
- Allow retired and drained CIDs to be reused after a timeout.
2020-11-18 09:05:15 -05:00
Dmitri Tikhonov ee4d393028 Release 2.24.2
- [BUGFIX] Allow peer to migrate when its SCID is zero-length.
- [BUGFIX] PADDING size calculation: only one Short packet can be
  coalesced.  (This should have been part of the fix in 2.24.1).
- Abort connect if received NEW_CONNECTION_ID but current DCID is
  zero-length.
- Improve log messages
2020-11-05 11:01:46 -05:00
sumasrao 21bcad8707 Support get_ssl_ctx callback for client 2020-10-28 18:26:57 -05:00
Dmitri Tikhonov 758aff32b9 Release 2.23.2
- Add QPACK stats collection and experimentation mode, see the new
  es_qpack_experiment setting.
- Log busy connection stats every second using the new "conn-stats"
  log module.
- Log about skipping only once.
- Update HTTP/3 greased frame type formula.
- Use ls-qpack v2.2.1.
2020-10-21 09:05:26 -04:00
Dmitri Tikhonov 04f8f447b2 Release 2.23.0
- [FEATURE] IETF Client 0-RTT support.
- [BUGFIX] Do not schedule MTU probe on first tick.
- [BUGFIX] Parsing DATAGRAM frame.
- [BUGFIX] If push promise fails, do not invoke hset destructor.
- [BUGFIX] Client: When connections are IDed by port number, check DCID.
  Fixes issue #176.
- Revert the 2.22.1 lsquic_is_valid_hs_packet change.  All that was
  necessary is a change to the way we call it in lsquic_engine.  No
  change to the function itself is required.
2020-10-13 08:20:25 -04:00
Dmitri Tikhonov fbc6cc0413 Release 2.22.0
- [FEATURE] Extensible HTTP Priorities (HTTP/3 only).
- [FEATURE] Add conn context to packet-out memory interface (PR #175).
- [BUGFIX] gQUIC proof generation: allocate buffer big enough for
  signature (issue #173).
- [BUGFIX] Make library thread-safe: drop use of global variables
  (issue #133, issue #167).
- [BUGFIX] Deactivate only *recent* HQ frame, not any HQ frame.
- [BUGFIX] gQUIC server: associate compressed cert with SSL_CTX,
  instead of keeping them in a separate hash, potentially leading
  to mismatches.
- [BUGFIX] Stream data discard infinite loop: break on FIN.
- cmake: add install target via -DCMAKE_INSTALL_PREFIX (PR #171).
- Support randomized packet number to begin a connection.
- Mini and full IETF connection size optimization.
- http_client: specify HTTP priorities based on stream conditions.
2020-10-07 09:41:26 -04:00
Victor Stewart fecdd10417
GSO-Friendly Packet Memory (#175) 2020-10-03 01:48:01 -04:00
Dmitri Tikhonov 2f4629f27d Fix several thread safety issues
Fixes bug #128 and bug #167.
2020-10-01 08:53:35 -04:00
Dmitri Tikhonov b62ec17fd2 Release 2.21.0
- [FEATURE] QUIC and HTTP/3 Internet Draft 31 support.
- [API] Let user generate Souce Connection IDs.
- [FEATURE] Allow building lsquic as shared library.
- [OPTIMIZATION] Receive history: use a single contiguous memory
  block for everything.
- Deprecate QUIC versions ID-27 and ID-30.
2020-09-29 08:56:43 -04:00
Victor Stewart ece7c94dac
Connection ID Steering (#165) 2020-09-26 14:11:28 -04:00
Dmitri Tikhonov b1a7c3f944 Release 2.20.0
- [FEATURE] QUIC and HTTP/3 Internet Draft 30 support.
- [FEATURE] Unreliable Datagram Extension support.
- [FEATURE] Adaptive congestion controller.
- [BUGFIX] Do not send MAX_STREAM_DATA frames on crypto streams.
- [BUGFIX] Fail with CRYPTO_BUFFER_EXCEEDED when too much CRYPTO
  data comes in.
- [BUFFIX] Spin bit is now strictly per path; value is reset on
  DCID change.
- [BUGFIX] Check that max value of max_streams_uni and
  max_streams_bidi TPs is 2^60.
- [BUGFIX] Close IETF mini conn immediately if crypto session
  cannot be initialized.
- Deprecate ID-28 (no browser uses it): it's no longer in the
  default versions list.
- New programs duck_server and duck_client that implement the
  experimental siduck-00 protocol.  They quack!
- IETF crypto streams: don't limit ourselves from sending.
- Command-line programs: turn off QL loss bits if -G is used, as
  Wireshark cannot decrypt QUIC packets when this extension is used.
- Turn all h3 framing unit tests back on.
- Fix malo initialization when compiled in no-pool mode.
2020-09-15 16:42:13 -04:00
Dmitri Tikhonov 2f2f436324 Release 2.19.9
- [FEATURE] Add lsquic_stream_pwritev().  This function allows one to
  reduce the number of system calls required to read a file from disk
  by using lsquic_stream_pwritev() together with preadv(2).
- [BUGFIX] When stream is reset, it is writeable -- let user collect
  the error.
- [BUGFIX] Calculate correct conn flow control if reading ends early.
- [BUGFIX] Remove stream from read and write queues on internal
  shutdown.  This is a regression introduced in 2.19.7.
- [BUGFIX] Swapped arguments in IETF RESET_FRAME generation.
- Turn off mini conn history when compiling with Visual Studio; this
  allows the project to compile on Windows again.
- http_client: Add -3 flag to stop reading from streams early; code
  cleanup.
- Don't use -Werror.
2020-09-08 11:43:03 -04:00
Dmitri Tikhonov 3a5376727e Release 2.19.4
- [BUGFIX] Do not return an oversize MTU probe to connection twice.
- [FEATURE] Delayed Acks updated to latest draft.  Still experimental.
- Minor code cleanup in IETF full connection.
2020-08-06 12:56:08 -04:00
Dmitri Tikhonov b8fa619567 Release 2.19.0
- [FEATURE] DPLPMTUD support.  IETF connections now search for the
  maximum packet size, improving throughput.
- [DEBUG] Record event in stream history when on_close() is called
  in dtor.
2020-07-29 11:33:52 -04:00
Dmitri Tikhonov 692a91022d Release 2.18.1
- [FEATURE] Implement the "QUIC bit grease" extension.
- [BUGFIX] Selecting CID used for logging on client.
- [BUGFIX] Header protection assertion.
- [BUGFIX] Server: enable SSL key logging when cert lookup callback
  is not set.
- Remove some dead code.
2020-07-14 08:26:58 -04:00
Dmitri Tikhonov 7483dee074 Release 2.18.0
- [API] Rename "0-RTT" to "session resumption." In IETF QUIC, "0-RTT"
  always refers to early data, meaning a request that the server can
  reply to in the very first return flight.  A more appropriate name
  for what we support on the client site is "session resumption," which
  is standard TLS terminology.  Later, when we add support for 0-RTT
  (early data), we can use the 0-RTT terminology again, this time in
  proper context.
- [BUGFIX] Do not set certificate callback if ea_lookup_cert is NULL.
- [BUGFIX] Make connection tickable when it's marked as closed.
- [BUGFIX] Fail certificate lookup if SNI is not present in HTTP mode.
- Several documentation fixes and improvements.
- Minor code cleanup.
2020-07-06 17:35:21 -04:00
Dmitri Tikhonov da99665b1c Release 2.17.2
- [BUGFIX] Infinite loop in stream: advance read offset when discarding data.
- [OPTIMIZATION] Header protection: only initialize cipher once.
- [OPTIMIZATION] Batch header protection application.
2020-06-24 11:06:43 -04:00
Dmitri Tikhonov e957eb06e3 Release 2.17.1: fix regression in 2.17.0 2020-06-18 11:26:16 -04:00
Dmitri Tikhonov 4051ae3a1a Release 2.17.0
- [FEATURE] QUIC and HTTP/3 Internet Draft 29 support.
- [BUGFIX] Check that scheduled packets are also sendable when
  calculating a connection's "tickable" property.
- [BUGFIX] Don't count scheduled packets as in-flight when pacer is
  checked on tick.
- gQUIC: delay calling on_new for pushed stream until headers are
  available.
- Allow nested calls to lsquic_engine_connect().
2020-06-18 09:45:44 -04:00
Dmitri Tikhonov f913a2972b Release 2.16.2
- [BUGFIX] ID-28: do not use TLS middlebox compatibility mode in
  ClientHello.  This change requires using a newer version of BoringSSL.
- [BUGFIX] Free connections in Advisory Tick Time Queue in engine dtor.
- [BUGFIX] IETF QUIC client: narrow migration check to a single path.
- [BUGFIX] NULL dereference: set function pointers for alarm for path
  challenges 2 and 3.
- [BUGFIX] HTTP/3 headers may be followed immediately by trailers.
- [BUGFIX] Log messages when SCID changes.
2020-06-12 08:04:42 -04:00
Dmitri Tikhonov 8ae5ecb45e Release 2.16.1
- [FEATURE] Use "no-progress timeout" after which connection is closed.
- [BUGFIX] Select new SCID when current SCID is retired.
- [BUGFIX] Don't warn about dropped Initial packet sequence gaps during
  mini/full handoff.
- [BUGFIX] Send correct conn error when HTTP/3 frame is truncated.
- [BUGFIX] Mini conn: consider amplification when deciding to return
  TICK_SEND.
- [BUGFIX] Don't double-count tag length in amplification logic.
- [BUGFIX] Don't squeeze out lone path challenges.
- [BUGFIX] Log messages dealing with scheduled packet queue squeezing.
- [BUGFIX] don't wipe current path if no path challenge responses
  come back.
- [BUGFIX] When path is reset, don't lose path_id which is used for
  logging.
- Downgrade flow control violations to info log level from warnings.
- Fix connection cap extra check, avoid checks in nested calls.
- Fix some unit tests when extra checks are enabled.
- Use ls-hpack 2.2.1.
- Turn off unconditional extra checks for IETF clients.
- Extra checks: don't verify sent size of hello packets.  Client
  changes DCID length and this check will fail.
2020-06-09 12:01:45 -04:00
Dmitri Tikhonov fb3e20e0bc Fix Windows support 2020-06-03 00:20:46 -04:00
Dmitri Tikhonov fb73393fef Release 2.15.0
- [FEATURE] QUIC and HTTP/3 Internet Draft 28 support.
- [BUGFIX] Ignore Retry packets after other packets are decrypted
  successfully.
- [BUGFIX] Transport parameter decoding: CID no longer has 4-byte
  length minimum.
- http_client: fix and optimize lsxpack_header allocator.
- Drop support for Internet Draft 25.
2020-05-27 10:26:32 -04:00
Dmitri Tikhonov 72585dc942 Release 2.14.5
- [BUGFIX] In coalesced datagram, ignore packets whose CID does not match.
- [BUGFIX] Frame reader: skip headers if target stream is not found.
- [BUGFIX] Log message in QPACK decoder handler.
2020-04-29 11:07:55 -04:00
Dmitri Tikhonov 77a28812de Release 2.14.1
- [BUGFIX] Place connections on tickable queue when sending is reenabled.
- [BUGFIX] A connection is tickable if it has unsent packets.
- [BUGFIX] Heed peer's max_packet_size transport parameter.
2020-04-07 11:42:05 -04:00
Dmitri Tikhonov a5fa05f958 Release 2.13.0
- [API] Use lsxpack_header structure to process incoming headers.
- [BUGFIX] Fix assertion when zero-padding Initial packet.
- [BUGFIX] Use idle timeout before we learn of peer's value.
- Use ls-hpack 2.0.0 -- has lsxpack_header changes.
- Use ls-qpack 0.14.0 -- new, common with ls-hpack, XXH seed (not used yet).
- Code cleanup: prefix exported functions with "lsquic_".
2020-03-12 09:02:56 -04:00
Dmitri Tikhonov afe3d36359 Release 2.12.0
- [FEATURE] QUIC timestamps extension.
- [API] New: ea_alpn that is used when not in HTTP mode.
- [BUGFIX] SNI is mandatory only for HTTP/3 and gQUIC.
- [BUGFIX] Benign double-free -- issue #110.
- [BUGFIX] Printing of transport parameters.
2020-03-02 08:53:41 -05:00
Dmitri Tikhonov fa4561dcea API: add ea_alpn that is used when not in HTTP mode 2020-02-28 14:03:57 -05:00
Dmitri Tikhonov bc520ef752 Release 2.11.0
- [FEATURE] QUIC and HTTP/3 Internet Draft 27 support.
- [FEATURE] Add experimental delayed ACKs extension.
- Drop support for Internet Draft 24.
- Code cleanup.
2020-02-24 12:02:57 -05:00
Dmitri Tikhonov feca77f50d Add experimental support for delayed ACKs extension 2020-02-21 14:26:25 -05:00
Dmitri Tikhonov df25d34a5e Fail engine ctor if stream callbackes are not specified 2020-02-20 17:01:15 -05:00
Dmitri Tikhonov b86524a470 Code cleanup. Improve comments in lsquic.h 2020-02-20 16:56:06 -05:00
Dmitri Tikhonov 1bdb91d191 Release 2.10.5
- [BUGFIX] BBR: call cci_sent() with correct arguments and at correct time.
- Refactor transport parameters module.
- Minor code cleanup.
2020-02-13 09:36:04 -05:00
Dmitri Tikhonov e68b045258 Release 2.10.4
- [BUGFIX] Send HANDSHAKE_DONE only after Finished is received.
- [BUGFIX] Don't treat garbage UDP padding as library error; ignore
  it instead.
- [BUGFIX] Fix compilation on FreeBSD (missing header).
2020-02-11 08:53:24 -05:00
Bas van den Berg f484131954 Fix duplicate header includes 2020-02-11 14:05:52 +01:00
Dmitri Tikhonov f2a7fa84cd Release 2.10.3
- [BUGFIX] Cancel path responses and challenges on old path when
  switching to new path.
- Logging network path information.
2020-01-31 10:48:16 -05:00
Dmitri Tikhonov 4ab453a184 Release 2.10.1
- [BUGFIX] Coalesced packets could get longer than normal packet size.
- Add spin bit configuration option es_spin (-o spin=[01]).
- Disable spin bit in 1/16 of connections.
- Improve logging a bit.
2020-01-29 10:34:20 -05:00
Dmitri Tikhonov 9fc120419d Release 2.10.0
- [FEATURE] QUIC and HTTP/3 Internet Draft 25 support.
- [API] Drop support for ID-23.
- [BUGFIX] Set key phase bit on outgoing packets correctly.
- Code cleanup.
2020-01-28 09:35:09 -05:00
Dmitri Tikhonov fb96f4dd43 Release 2.9.0
- [API] Drop support for Q039.
- Improve ACK-queuing logic.  Send an ACK once in a while if
  peer keeps on sending non-ack-eliciting packets.
- Improve Alt-Svc string: Q050 and later are not included in
  the old-style "quic" string.
- Send stateless resets if connection could not be promoted.
- Schedule MAX_DATA if needed when DATA_BLOCKED is received.
- Use ls-qpack 0.11.2 -- needed for server push optimization.
- Code cleanup: handle some error cases, improve logging.
2020-01-20 09:41:37 -05:00
Dmitri Tikhonov 10c41073e4 Release 2.8.9
- [BUGFIX] Use ls-qpack 0.11.1
- [OPTIMIZATION] Generate random bytes in batches.
- Change loss_bits transport parameter ID to 0x1057 following latest
  draft.
- Randomize period with which PINGs are sent to elicit ACKs.
- Some refactoring and code cleanup.
2020-01-16 09:22:41 -05:00
Dmitri Tikhonov 7d09751dbb Release 2.8.7
- [BUGFIX] Initial packet size check for IETF mini conn applies to
  UDP payload, not QUIC packet.
- Support old and new school loss_bits transport parameter.
- Use Q run length of 64 as suggested in the loss bits Draft.
- Undo square wave count when packet is delayed.
- Code cleanup; minor fixes.
2020-01-09 11:52:25 -05:00
Dmitri Tikhonov de46bf2f1f Release 2.8.1
- [FEATURE] Use occasional packet number gaps to detect optimistic
  ACK attacks.
- [BUGFIX] Q050 client: all packet numbers are in the App PNS.
- [OPTIMIZATION] Merge multi-range ACK frames, not just single-range
  ACK frames.
- IETF QUIC: use RTT estimate in ack timeout calculation.
- IETF handshake: abort conn when unexpected errors occur.
- Use PING rather than MAX_DATA frames to elicit ACKs from peer.
- Server: enforce 1200 byte Initial minimum packet size.
- [CLEANUP] Remove code to disable gQUIC crypto.
- [CLEANUP] Remove n_timestamps from ACK info struct.
- Optimize driver: reuse previous ancillary message when possible.
2019-12-30 11:29:05 -05:00