Commit Graph

328 Commits

Author SHA1 Message Date
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
Tatsuhiro Tsujikawa 34bf153653 Merge branch 'master' into simple-extensions 2016-02-24 23:21:03 +09:00
Peter Wu 63e43bff99 tests: remove unused macros
Since v0.6.2-7-g1d138ac ("Unify DATA and other frames in
nghttp2_outbound_item and save malloc()"), the macros are unused and the
builds fails on -Werror=unused-macros.
2016-02-15 10:20:13 +01:00
Tatsuhiro Tsujikawa fc39f2d9d2 Merge branch 'master' into simple-extensions 2016-02-07 21:09:08 +09:00
Tatsuhiro Tsujikawa 4a78f59e7b Rename nghttp2_session.sent_stream_id as last_sent_stream_id
This is more accurate, and there is symmetric relation between
last_sent_stream_id and last_recv_stream_id, which is bettern fit in
my sense.
2016-01-23 14:47:39 +09:00
Tatsuhiro Tsujikawa 1f7032088d Add test which covers remote stream window size overflow case 2016-01-23 12:01:29 +09:00
Tatsuhiro Tsujikawa 4ceb9fd767 Cancel stream if flow control window gets overflow
Previously, we did terminate session, but it did not actually cancel
streams.  Now we just cancel streams in this case.
2016-01-23 00:24:12 +09:00
Tatsuhiro Tsujikawa a23c9244d4 Make sure that upgraded response can be received from server 2016-01-15 17:03:13 +09:00
Tatsuhiro Tsujikawa e14da859b6 Merge branch 'master' into simple-extensions 2016-01-11 16:39:35 +09:00
Tatsuhiro Tsujikawa bb6f842b37 Check request/response submission error based side of session
Disallow request from server, and response from client respectively.
When the violation is detected, return NGHTTP2_ERR_PROTO from
nghttp2_submit_request, nghttp2_submit_response,
nghttp2_submit_headers.

We also did some refactoring, and now self-dependency detection is
placed where it is only required.
2016-01-11 16:18:39 +09:00
Tatsuhiro Tsujikawa 8f225ae88d Fix broken test_nghttp2_session_pop_next_ob_item 2016-01-11 00:46:44 +09:00
Tatsuhiro Tsujikawa 9cea986819 Strict outgoing idle stream detection
Previously, we use session->next_stream_id to detect that given stream
ID was idle or not.  But this was suboptimal, since it was updated
when stream ID was assigned, and it did not necessarily mean that it
actually has been sent to the peer.  Now we introduced
session->sent_stream_id, which only updated when HEADERS/PUSH_PROMISE
has sent.  Using sent_stream_id instead of next_stream_id tightens
idle stream detection, and misbehaved peer which sends frame with
stream ID that has not been generated.

This commit also overhauls test code which involves opening streams.
Now we have some wrapper functions for nghttp2_session_open_stream()
which also take care of updating next_stream_id and
last_recv_stream_id.  They are crucial for some tests.
2016-01-11 00:31:52 +09:00
Tatsuhiro Tsujikawa 0caefe20ef Merge branch 'master' into simple-extensions 2016-01-09 19:08:28 +09:00
Tatsuhiro Tsujikawa 3a9cb85d7a Add test to make sure idle streams are reduced 2015-12-26 00:30:55 +09:00
Tatsuhiro Tsujikawa 8716dd05d4 Return error from nghttp2_submit_{headers,request} when self dependency is made
Return NGHTTP2_ERR_INVALID_ARGUMENT from nghttp2_submit_headers() if
given stream ID and pri_spec->stream_id are the same (thus trying to
depend on itself).

Also return NGHTTP2_ERR_INVALID_ARGUMENT from nghttp2_submit_request()
and nghttp2_submit_headers() with stream_id == 1, when new stream ID
equals to pri_spec->stream_id.

Previously, these cases are not checked, and just sent to peer.
2015-12-25 21:37:18 +09:00
Tatsuhiro Tsujikawa 894c1bd02e Create idle stream on client side
With the presence of idle stream related API (e.g.,
nghttp2_create_idle_stream()), it is more predictable for client to
create idle streams with its dependency to another idle stream.
Previously, we didn't create complete parent idle stream in this case.
Now we create idle streams as we do on server side.
2015-12-25 00:10:37 +09:00
Tatsuhiro Tsujikawa 8122bc5aef Fix compile error with gcc ASAN enabled 2015-12-23 17:14:36 +09:00
Tatsuhiro Tsujikawa bd9a19e23b Add test for 92a56d034f 2015-12-23 17:10:33 +09:00
Tatsuhiro Tsujikawa 92a56d034f Fix bug that idle/closed stream may be destroyed while it is referenced 2015-12-23 16:38:30 +09:00
Tatsuhiro Tsujikawa dd93b29397 clang-format 2015-12-20 12:48:39 +09:00
Tatsuhiro Tsujikawa feae76fbc0 Remove unused commented lines 2015-12-18 22:44:08 +09:00
Tatsuhiro Tsujikawa 9f8fc7b2bb Strict error handling for frames which are not allowed after closed (remote)
This makes h2spec strict mode a bit happier.  We still one failing
test with h2spec -S (strict mode).
2015-12-17 21:31:20 +09:00
Tatsuhiro Tsujikawa ab93db2259 Add test when client sends push response to server 2015-12-11 00:18:27 +09:00
Tatsuhiro Tsujikawa 9c84f60ba0 Merge branch 'master' into simple-extensions 2015-12-04 23:48:40 +09:00
Tatsuhiro Tsujikawa 93d8636fb0 Keep incoming streams only at server side
We should only keep incoming closed streams because we only keep at
most max concurrent streams, which only applied to incoming streams.
2015-12-03 22:48:41 +09:00
Tatsuhiro Tsujikawa 2288ee8060 Create stream object for pushed resource during nghttp2_submit_push_promise()
Previously, stream object for pushed resource was not created during
nghttp2_submit_push_promise().  It was created just before
nghttp2_before_frame_send_callback was called for that PUSH_PROMISE
frame.  This means that application could not call
nghttp2_submit_response for the pushed resource before
nghttp2_before_frame_send_callback was called.  This could be solved
by callback chaining, but for web server with back pressure from
backend stream, it is a bit unnecessarily hard to use.

This commit changes nghttp2_submit_push_promise() behaviour so that
stream object is created during that call.  It makes application call
nghttp2_submit_response right after successful
nghttp2_submit_push_promise call.
2015-12-02 21:16:30 +09:00
Tatsuhiro Tsujikawa 12b2e0a2b3 Add nghttp2_session_create_idle_stream() API
See GH-436
2015-11-28 15:23:44 +09:00
Tatsuhiro Tsujikawa a70445e122 Retain stream in reserved state on client side
Application may use it using nghttp2_stream_* functions, and traverse
its dependency.
2015-11-27 22:54:55 +09:00
Tatsuhiro Tsujikawa f23e34fa3c Handle response in nghttp2_on_begin_frame_callback
Previously, nghttp2_session_end_request_headers_received assumes
stream is still writable (in other words, local endpoint has not sent
END_STREAM).  But this assumption is false, because application can
send response in nghttp2_on_begin_frame_callback.  Probably, this
assumption was made before the callback was introduced.  This commit
addresses this issue.  Since all
nghttp2_session_end_*_headers_received functions are identical, we
refactored them into one function.
2015-11-27 22:50:13 +09:00
Tatsuhiro Tsujikawa 3048bb9d90 Fix test: stream_id is not incremented 2015-11-25 22:18:54 +09:00
Tatsuhiro Tsujikawa b08d5b1975 Explicitly treat stream_id 0 as error in nghttp2_session_change_stream_priority 2015-11-24 22:34:36 +09:00
Tatsuhiro Tsujikawa b53b1381b7 Fix bug that nghttp2_session_find_stream(session, 0) returned NULL
Previously, nghttp2_session_find_stream(session, 0) returned NULL
despite the fact that documentation said that it should return root
stream.  Now it is corrected, and it returns root stream as
documented.
2015-11-24 22:30:12 +09:00
Tatsuhiro Tsujikawa d62bc26b62 Add test for nghttp2_session_change_stream_priority() 2015-11-23 19:48:51 +09:00
Tatsuhiro Tsujikawa d7b0768ab8 Fix bug that dep_stream->sum_dep_weight was not updated 2015-11-20 21:24:54 +09:00
Tatsuhiro Tsujikawa 83cc2511e3 Remove flags parameter from nghttp2_pack_extension_callback
It has no usecase at the moment.  It is most likely that applications
know the flags when it submitted extension frame, no need to modify it
later.  Possibly feature bloat.
2015-11-17 21:29:21 +09:00
Tatsuhiro Tsujikawa b918f9650a Don't send push response if GOAWAY has been received 2015-11-16 22:47:12 +09:00
Tatsuhiro Tsujikawa 7463493259 Use error code CANCEL to reset pushed reserved stream from remote 2015-11-16 22:20:27 +09:00
Tatsuhiro Tsujikawa eb4e402aae Merge branch 'master' into simple-extensions 2015-11-14 22:31:52 +09:00