Commit Graph

365 Commits

Author SHA1 Message Date
Tatsuhiro Tsujikawa c8bf8c6521 Don't send RST_STREAM to idle stream 2020-06-18 11:59:06 +09:00
James M Snell 336a98feb0
Implement max settings option 2020-05-05 11:55:32 -07:00
Tatsuhiro Tsujikawa b3f85e2daa
Merge pull request #1444 from nghttp2/fix-recv-window-flow-control-issue
Fix receiving stream data stall
2020-02-20 11:22:18 +09:00
Tatsuhiro Tsujikawa 2ec585518e Fix receiving stream data stall
Previously, if automatic window update is enabled (which is default),
after window size is set to 0 by
nghttp2_session_set_local_window_size, once the receiving window is
exhausted, even after window size is increased by
nghttp2_session_set_local_window_size, no more data cannot be
received.  This is because nghttp2_session_set_local_window_size does
not submit WINDOW_UPDATE.  It is only triggered when new data arrives
but since window is filled up, no more data cannot be received, thus
dead lock happens.

This commit fixes this issue.  nghttp2_session_set_local_window_size
submits WINDOW_UPDATE if necessary.

https://github.com/curl/curl/issues/4939
2020-02-20 10:40:38 +09:00
Geoff Hill 866eadb5de Enable session_create_idle_stream test, fix errors
Add the currently-unused `test_nghttp2_session_create_idle_stream()`
function to the test suite definition.

Modify the test in two places to make it pass:

  * Use stream ID=10 as the priority stream ID to test automatic creation
    of streams for priority specs. The code below checks against stream
    ID=10 so I assume this was a typo in the test.

  * Set the `last_sent_stream_id` instead of the `next_stream_id` to test
    that idle streams cannot be created with smaller numbers than the
    most-recently-seen stream ID. Looking at the validation path in
    `session_detect_idle_stream()`, I think this was another test typo.
2020-01-23 17:29:19 -08:00
Tatsuhiro Tsujikawa 6ce4835eea Fix the bug that stream is closed with wrong error code
This commit fixes the bug that stream is closed with wrong error code
(0).  This happens when STREAM or DATA frame with END_STREAM flag set
is received and it violates HTTP messaging rule (i.e., content-length
does not match) and the other side of stream has been closed.  In this
case, nghttp2_on_stream_close_callback should be called with nonzero
error code, but previously it is called with 0 (NO_ERROR).
2019-10-29 21:04:52 +09:00
Tatsuhiro Tsujikawa 0a6ce87c22 Add nghttp2_option_set_max_outbound_ack 2019-08-14 11:43:55 +09:00
Tatsuhiro Tsujikawa afefbda518 Ignore content-length in 200 response to CONNECT request 2019-05-17 23:00:32 +09:00
Tatsuhiro Tsujikawa d978f351da Fix bug that on_header callback is still called after stream is closed 2019-04-11 10:17:01 +09:00
Tatsuhiro Tsujikawa 334c439ce0 Fix bug that regular CONNECT does not work 2018-10-04 12:02:46 +09:00
Tatsuhiro Tsujikawa 651e147711 Allow client sending :protocol optimistically 2018-09-28 00:12:02 +09:00
Tatsuhiro Tsujikawa b80dfaa8a0 Adjustment for RFC 8441 2018-09-23 11:22:30 +09:00
Tatsuhiro Tsujikawa a19d8f5d31 Deal with :protocol pseudo header 2018-09-23 10:36:30 +09:00
Tatsuhiro Tsujikawa ed7fabcbc2 Add SETTINGS_ENABLE_CONNECT_PROTOCOL 2018-09-23 10:36:30 +09:00
Tatsuhiro Tsujikawa 4098512b5d Tweak nghttp2_session_set_stream_user_data
nghttp2_session_set_stream_user_data now works for a stream which is
not created yet, but the request which creates the stream is queued.
2018-08-18 17:38:58 +09:00
Piotr Sikora 2ba1389993 Fix handling of SETTINGS_MAX_CONCURRENT_STREAMS.
The maximum number of outgoing concurrent streams is initially
limited to 100 to avoid issues when the local endpoint submits
lots of requests before receiving initial SETTINGS frame from
the remote endpoint, since sending them at once to the remote
endpoint could lead to rejection of some of the requests.

This initial limit is overwritten with the value advertised in
SETTINGS_MAX_CONCURRENT_STREAMS setting by the remote endpoint,
but previously, it wasn't lifted if the remote endpoint didn't
advertise that setting (implying no limits), in which case the
limit of 100 was retained, even though it was never advertised
by the remote endpoint.

Signed-off-by: Piotr Sikora <piotrsikora@google.com>
2018-05-30 20:24:00 -07:00
Tatsuhiro Tsujikawa 8034221525 Implement ORIGIN frame 2018-05-12 12:35:08 +09:00
Tatsuhiro Tsujikawa 06379b2861 Fix treatment of padding 2018-04-22 14:42:28 +09:00
Tatsuhiro Tsujikawa b1bd6035e8 Fix frame handling 2018-04-07 00:27:55 +09:00
Tatsuhiro Tsujikawa 842509dab6 Don't allow 101 HTTP status code because HTTP/2 removes HTTP Upgrade 2018-03-11 15:37:30 +09:00
Tatsuhiro Tsujikawa ff200bfcf3 clang-format-5.0 2017-11-23 14:19:12 +09:00
Tatsuhiro Tsujikawa aaeeec8f1c Fix typos 2017-10-28 22:25:42 +09:00
Tatsuhiro Tsujikawa d3fcbe9a02 Merge branch 'invalid-header-field-error' 2017-05-12 21:37:20 +09:00
Tatsuhiro Tsujikawa a584cf5a4f Use clang-format-4.0 2017-04-30 15:45:53 +09:00
Tatsuhiro Tsujikawa 78d7160a99 Treat incoming invalid regular header field as stream error
Previously, the incoming invalid regular header field was ignored by
default.  With this commit, they are now treated as stream error, and
the stream is reset by default.  The error code used is now
PROTOCOL_ERROR, instead of INTERNAL_ERROR.
2017-04-28 23:46:06 +09:00
Tatsuhiro Tsujikawa 21af775ce0 Call nghttp2_on_invalid_frame_callback if altsvc validation fails 2017-04-27 18:53:43 +09:00
Tatsuhiro Tsujikawa 85a12429ee Eliminate _U_ macro
Instead use (void)VAR for better compiler compatibility.
2017-03-11 18:45:49 +09:00
Tatsuhiro Tsujikawa f3a5a0a0ec Add nghttp2_option_no_closed_streams
nghttp2_option_no_closed_streams controls whether closed streams are
retained or not.  If nonzero is passed to that function's parameter
val, a session does not retain closed streams.  It may hurt the shape
of priority tree, but can save memory.
2017-02-13 22:33:29 +09:00
Tatsuhiro Tsujikawa 5645cad577 Accept and ignore content-length: 0 in 204 response for now 2016-12-03 14:57:16 +09:00
Tatsuhiro Tsujikawa 6ad9ddcdea Disallow content-length in 1xx, 204, or 200 to a CONNECT request 2016-11-03 17:26:32 +09:00
Tatsuhiro Tsujikawa 0cf6848646 clang-format-3.9 2016-10-15 18:36:04 +09:00
Tatsuhiro Tsujikawa 392256e542 Add nghttp2_option_set_max_deflate_dynamic_table_size() API function
nghttp2_option_set_max_deflate_dynamic_table_size function sets the
maximum dynamic table size for header block deflater.  The default
value is 4KiB.
2016-09-11 22:13:59 +09:00
Tatsuhiro Tsujikawa 6858cda366 Fix GOAWAY race with new incoming stream on server side
Revert part of 16c46114dc to fix race
condition that incoming stream after sending GOAWAY causes connection
error.  The strict stream handling introduced in the above commit does
not handle several cases well (e.g., GOAWAY race, and refusing streams
because of concurrency limit).
2016-09-09 22:08:34 +09:00
Tatsuhiro Tsujikawa fddb019baf Merge branch 'master' into http2-debug-state-api 2016-08-28 22:20:04 +09:00
Tatsuhiro Tsujikawa 581e0938a9 Allow NGHTTP2_ERR_PAUSE from nghttp2_data_source_read_callback 2016-08-28 21:57:10 +09:00
Tatsuhiro Tsujikawa e693f75670 Add nghttp2_session_get_local_settings() API function 2016-08-21 19:33:01 +09:00
Tatsuhiro Tsujikawa 5cf21ec187 Add APIs to return the number of data that remote endpoint can send
2 APIs are added.  nghttp2_session_get_local_window_size() returns the
amount of data that the remote endpoint can send without receiving
connection level WINDOW_UPDATE.
nghttp2_session_get_stream_local_window_size() returns the amount of
data that the remote endpoint can send without receiving stream level
WINDOW_UPDATE.
2016-08-21 19:01:51 +09:00
Tatsuhiro Tsujikawa 8579b8a968 Merge pull request #646 from nghttp2/invalid-header-cb
Add nghttp2_on_invalid_header_callback
2016-08-15 11:13:20 +09:00
Tatsuhiro Tsujikawa 16c46114dc More strict stream state handling
Previously, in server side, we used closed streams to detect the error
that the misbehaving client sends a frame on the incoming stream it
explicitly closed.  With this commit, we make a further step, and
detect one more error case.  Since we retain closed streams as long as
the sum of its size and the number of opened streams are equal or less
than max concurrent streams, we can safely say that if we get a frame
which is sent on the stream that is not found in either closed or
opened stream, it is already closed or has not existed.  Then we can
send GOAWAY.

The previous code shrinks closed streams when we closed another
stream, but now it is removed.  It is enough to adjust closed streams
when new incoming stream is created.

While creating this commit, we noticed that
NGHTTP2_INITIAL_MAX_CONCURRENT_STREAMS is defined as INT32_MAX.  But
since SETTINGS can contain value up to UINT32_MAX, it is not enough.
However, since the stream ID space is limited to INT32_MAX, it is high
enough.  We could keep this value, but this time we deprecate
NGHTTP2_INITIAL_MAX_CONCURRENT_STREAMS macro.  While it is in public
header, the effect of deprecating it is negligible because of the
reason we wrote above, and usually application sets much smaller value
(say, 100) as SETTINGS_MAX_CONCURRENT_STREAMS.
2016-08-07 19:31:00 +09:00
Tatsuhiro Tsujikawa 2f106dc96b Fix wrong tree operation to avoid cycle
https://tools.ietf.org/html/rfc7540#section-5.3.3 explains how to
transform dependency tree to avoid circular dependency.  Previously,
we wrongly always moved the dependent stream under the root stream.
The correct destination is the parent stream of the stream to
reprioritize.  This commit fixes this bug.
2016-08-04 22:20:07 +09:00
Tatsuhiro Tsujikawa 271f7fbbb6 Add nghttp2_on_invalid_header_callback
nghttp2_on_invalid_header_callback is similar to
nghttp2_on_header_callback, but the former is only called when the
invalid header field is received which is silently ignored when the
callback is not set.  With this callback, application inspects the
incoming invalid field, and it also can reset stream from this
callback by returning NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE, or using
nghttp2_submit_rst_stream() directly with the error code of choice.

We also added nghttp2_on_invalid_header_callback2, which uses
reference counted header fields.
2016-08-04 00:03:58 +09:00
Tatsuhiro Tsujikawa d2addbc1ed Add test for canceling PUSH_PROMISE 2016-07-02 21:19:54 +09:00
Tatsuhiro Tsujikawa 110ca3131a Cancel frame transmission from before_frame_send_callback
We define the behaviour when NGHTTP2_ERR_CANCEL is returned from
before_frame_send_callback.  That is to cancel the frame passed to the
callback.
2016-07-02 19:21:08 +09:00
Tatsuhiro Tsujikawa c7b0e04498 Add nghttp2_option_set_max_send_header_block_length API function
This function sets the maximum length of header block (a set of header
fields per HEADERS frame) to send.  The length of given set of header
fields is calculated using nghttp2_hd_deflate_bound().  Previously,
this is hard-coded, and is 64KiB.
2016-06-15 00:05:15 +09:00
Tatsuhiro Tsujikawa 204f9a3ec7 Add nghttp2_session_set_local_window_size() API function 2016-05-29 23:13:11 +09:00
Tatsuhiro Tsujikawa 9c0bd8c60a Fix compile error (again) with gcc and --enable-werror 2016-04-09 22:01:15 +09:00
Tatsuhiro Tsujikawa 16647622f5 Fix compile error with gcc and --enable-werror 2016-04-09 19:37:35 +09:00
Tatsuhiro Tsujikawa d4144a7475 altsvc: Add tests, ignore altsvc if stream does not exist 2016-04-09 19:14:15 +09:00
Tatsuhiro Tsujikawa efbd48b122 altsvc: Add tx tests 2016-04-08 23:25:56 +09:00
Tatsuhiro Tsujikawa e453759637 Add nghttp2_option_set_no_auto_ping_ack() option
This option prevents the nghttp2 library from sending PING frame with
ACK flag set in the reply to incoming PING frame.  To allow the
application to send PING with ACK flag set, nghttp2_submit_ping() now
recognizes NGHTTP2_FLAG_PING in its flags parameter.
2016-02-29 23:39:50 +09:00