Commit Graph

320 Commits

Author SHA1 Message Date
Tatsuhiro Tsujikawa 42122c270a Don't reprioritize stream if it is not in dependency tree
Normally stream is in dependency tree, but sometimes it isn't.  For
example, client does not put pushed reserved stream in dependency
tree.
2014-11-08 10:31:53 +09:00
Tatsuhiro Tsujikawa 1348621d9e Fix bug that priority is ignored if dependency parent does not exist 2014-11-08 10:18:10 +09:00
Tatsuhiro Tsujikawa 62ede05c09 Fix heap-use-after-free due to duplicated push of DATA item 2014-11-06 23:47:41 +09:00
Tatsuhiro Tsujikawa 9a33116526 Fix bug in priority tree
This change fixes the bug that stream is out of dependency tree if the
number of nodes in a dependency tree which we add new node to is
already maximum (NGHTTP2_MAX_DEP_TREE_LENGTH) and the number of
maximum concurrent streams is more than more than
NGHTTP2_MAX_DEP_TREE_LENGTH.
2014-11-05 00:32:16 +09:00
Tatsuhiro Tsujikawa 7d282cd0bd Code cleanup 2014-10-30 23:31:28 +09:00
Tatsuhiro Tsujikawa 49b8d1d88c Rename max_header_set_size as max_header_list_size 2014-10-30 22:42:15 +09:00
Tatsuhiro Tsujikawa 4d93dd9d91 Upate to draft-15
* Add NGHTTP2_HTTP_1_1_REQUIRED error code
* Allow transmission of WINDOW_UPDATE on reserved (remote)
* Allow reception of WINDOW_UPDATE on reserved (local)
* Treat frame larger than MAX_FRAME_SIZE as FRAME_SIZE_ERROR

ALPN identifier is still h2-14 to continue interop, since draft-14 and
-15 are binary compatible.  The new error code was added in draft-15,
but HTTP/2 allows extensions can freely add new error code, so it is
not a problem.
2014-10-30 22:40:02 +09:00
Tatsuhiro Tsujikawa e330520341 Fix compile error on arm 2014-10-19 22:40:39 +09:00
Tatsuhiro Tsujikawa 70c0558443 Set payload length when expected SETTINGS is not received 2014-10-10 21:46:02 +09:00
Tatsuhiro Tsujikawa 80dcb565eb Check first SETTINGS strictly 2014-10-09 21:37:18 +09:00
Tatsuhiro Tsujikawa 1d138accb9 Unify DATA and other frames in nghttp2_outbound_item and save malloc() 2014-10-03 21:31:37 +09:00
Tatsuhiro Tsujikawa e20b417b84 Embed aux_data to nghttp2_outbound_item so that we can save some malloc() calls 2014-09-30 21:45:15 +09:00
Tatsuhiro Tsujikawa be0f6dcaaf Clear 2 types of stream deferred flag indenpendently
Previously when nghttp2_stream_resume_deferred_data() is called,
deferred flags in stream->flags are all cleared.  This is not ideal
because if application returned NGHTTP2_ERR_DEFERRED, and also that
stream is deferred by flow control, then all flags are cleared and
read callback will be invoked again.  This commit fixes this issue.
This changes error condition of nghttp2_session_resume_data().
Previously we return error if stream was deferred by flow control.
Now we don't return error in this case.  We just clear
NGHTTP2_FLAG_DEFERRED_USER and if still
NGHTTP2_FLAG_DEFERRED_FLOW_CONTROL is set, just return 0.
2014-09-26 21:32:17 +09:00
Tatsuhiro Tsujikawa a11fbf6e2f Optimize connection level remote flow control
Previously when connection level remote flow control window gets 0, we
mark the stream having DATA frame with
NGHTTP2_STREAM_FLAG_DEFERRED_FLOW_CONTROL.  When connection level
WINDOW_UPDATE is received, we checks all existing streams, including
closed ones, and call nghttp2_stream_resume_deferred_data().  The
profiler shows this is expensive.

Now we prepare dedicated priority queue for DATA frames.  And we don't
mark stream with NGHTTP2_STREAM_FLAG_DEFERRED_FLOW_CONTROL when DATA
cannot be sent solely due to connection level flow control.  Instead,
we just queue DATA item to queue.  We won't pop DATA item from queue
when connection level remote window size is 0.  This way, we avoid the
expensive operation for all streams when WINDOW_UPDATE is arrived.
2014-09-26 00:01:51 +09:00
Tatsuhiro Tsujikawa b2f88f8fe3 Fix memory leak around stream->data_item
Previously we missed the case where stream->data_item is not deleted
and it caused leak.  Now stream->data_item is properly deleted when
session is deleted.  We decided not to delete data_item in
nghttp2_stream_free() since we need nghttp2_session to decide whether
data_item should be deleted or not there.
2014-09-17 23:16:00 +09:00
Tatsuhiro Tsujikawa 901de5fbce Add nghttp2_option_set_recv_client_preface()
By default, nghttp2 library only handles HTTP/2 frames and does not
recognize first 24 bytes of client connection preface. This design
choice is done due to the fact that server may want to detect the
application protocol based on first few bytes on clear text
communication. But for simple servers which only speak HTTP/2, it is
easier for developers if nghttp2 library takes care of client
connection preface.

If this option is used with nonzero val, nghttp2 library checks first
24 bytes client connection preface. If it is not a valid one,
nghttp2_session_recv() and nghttp2_session_mem_recv() will return
error NGHTTP2_ERR_BAD_PREFACE, which is fatal error.
2014-09-13 19:50:44 +09:00
Tatsuhiro Tsujikawa b4bb6a6101 Add reserved bits to header and frames
Currently reserved bit is always set to 0.  The addition of reserved
bit is for future extension.
2014-08-28 23:30:42 +09:00
Tatsuhiro Tsujikawa 4c11cd0671 Add test to submit DATA frame twice
This commit adds test to submit DATA frame twice and fixes the bug
that 2nd DATA is not sent.
2014-08-25 23:46:17 +09:00
Tatsuhiro Tsujikawa dd038bf753 Fix crash when buffer was reallocated after read_length_callback
Added test for this crash.
2014-08-25 23:05:39 +09:00
Tatsuhiro Tsujikawa 577512f2ca Use datamax if buffer reallocation failed 2014-08-25 22:46:55 +09:00
Tatsuhiro Tsujikawa 565c635e9b Wrap longer lines (> 80) 2014-08-25 22:41:34 +09:00
Tatsuhiro Tsujikawa 0b1ab90fb8 Move frame_type parameter in front of stream_id
This commit moves frame_type parameter of
nghttp2_data_soruce_read_length_callback in front of stream_id
parameter.  The motivation is that other callback is generally put
frame related parameters first.  To make it consistent, we move
frame_type, which is frame ralted parameter, to the left.
2014-08-25 22:31:11 +09:00
Tatsuhiro Tsujikawa 93b4d9efc3 Allow application to call nghttp2_submit_data() in on_frame_send_callback
Previously we always call on_frame_send_callback before calling
nghttp2_stream_detach_data() after sending DATA frame.  As a result,
even if DATA frame has END_STREAM, application cannot call
nghttp2_submit_data() in on_frame_send_callback because previous data
is still attached.  This commit makes a change so that
nghttp2_stream_detach_data() is called before on_frame_send_callback
so that application can issue nghttp2_submit_data() in the callback.
2014-08-25 21:53:40 +09:00
Tatsuhiro Tsujikawa 82bc7198e6 Change nghttp2_session_get_stream_remote_window_size behavior
Now it returns only stream's available remote window size, without
considering connection level window size.  For connection-level window
size, nghttp2_session_get_remote_window_size() is added by this
commit.  To get old behavior of
nghttp2_session_get_stream_remote_window_size() is use
min(nghttp2_session_get_stream_remote_window_size(),
nghttp2_session_get_remote_window_size()).  The reason of this change
is that it is desirable to know just stream level window size without
taking into connection level window size.  This is useful for
debugging purpose.
2014-08-25 21:44:22 +09:00
Tatsuhiro Tsujikawa a36c4c6f5f Add nghttp2_on_begin_frame_callback
nghttp2_on_begin_frame_callback will be invoked when a frame header is
received.
2014-08-25 21:26:50 +09:00
Tatsuhiro Tsujikawa 31528b6267 Use uint32_t for HTTP/2 error_code
h2-14 now allows extensions to define new error codes.  To allow
application callback to access such error codes, we uses uint32_t as
error_code type for structs and function parameters.  Previously we
treated unknown error code as INTERNAL_ERROR, but this change removes
this and unknown error code is passed to application callback as is.
2014-08-25 21:24:04 +09:00
Tatsuhiro Tsujikawa 3655090997 Merge branch 'window_size_control' of https://github.com/akamai/nghttp2 into akamai-window_size_control 2014-08-25 21:09:26 +09:00
Scott Mitchell 3cd08251ca Send window size API extension
Motivation:

The send window size is currently fixed by a macro at compile time.
In order for users of the library to impact the send window size they
would have to change a macro at compile time. The window size may be dynamic
depending on the environment and deployment scheme. The library users
currently have no way to change this parameter.

Modifications:

Add a new optional callback method which is called before data is sent to
obtain the desired send window size. The callback return value will be
subject to a range check for the current session, stream, and settings
limits defined by flow control.

Result:
Library users have control over their send sizes.
2014-08-24 11:32:44 -04:00
Tatsuhiro Tsujikawa 1093b3eeab Check explicitly that padding field is really read 2014-08-24 22:29:05 +09:00
Tatsuhiro Tsujikawa 7bfa276e96 Fix bug that NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE causes session failure
Previously returning NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE from
on_header_callback moves input offset badly and it causes header
decompression error on the subsequent frames.  This commit fix this
bug.
2014-08-24 00:50:55 +09:00
Tatsuhiro Tsujikawa 02c5621c61 Refactor functions to update consumed size 2014-08-23 18:56:04 +09:00
Tatsuhiro Tsujikawa 0c7e2fbec6 Use parenthesis explicitly for bit wise operation 2014-08-23 18:03:20 +09:00
Tatsuhiro Tsujikawa bbe4f5a3d1 Allow frame submission immediately after nghttp2_submit_{request,headers,pp}
This commit makes handling of outgoing HEADERS and PUSH_PROMISE in the
same priority of other frames on the stream, so these frames are
processed in the order they are submitted.  This allows application to
submit frames to a stream returned by nghttp2_submit_{request,
headers, push_promise} immediately.  The only exception is
WINDOW_UPDATA frame, which requires nghttp2_stream object, which is
not created yet.
2014-08-17 17:31:43 +09:00
Tatsuhiro Tsujikawa d499803221 Fix another heap-use-after-free bug 2014-08-10 12:20:36 +09:00
Tatsuhiro Tsujikawa 4679188069 Fix crash 2014-08-09 18:41:08 +09:00
Tatsuhiro Tsujikawa 16101b8b3f Fix compile error with --enable-debug 2014-08-02 10:16:32 +09:00
Alexis La Goutte ac28cd7efa Fix typo 2014-08-01 09:05:37 +02:00
Tatsuhiro Tsujikawa c13329b328 Treat delta 0 WINDOW_UPDATE as error 2014-07-31 23:05:53 +09:00
Tatsuhiro Tsujikawa b8a2bf2675 Remove END_SEGMENT flag 2014-07-31 23:05:53 +09:00
Tatsuhiro Tsujikawa 742b28833a Rename NGHTTP2_SETTINGS_MAX_HEADER_SET_SIZE as NGHTTP2_SETTINGS_MAX_HEADER_LIST_SIZE 2014-07-31 23:05:53 +09:00
Tatsuhiro Tsujikawa 77374ac6e2 Implement SETTINGS_MAX_FRAME_SIZE and SETTINGS_MAX_HEADER_LIST_SIZE 2014-07-31 23:05:53 +09:00
Tatsuhiro Tsujikawa 8d5422c9bb Remove check for incoming header block size
The application should be responsible for the size of incoming header
block size.  Framing layer just passes everything (we have size limit
for one header/field though) to application.
2014-07-31 23:05:53 +09:00
Tatsuhiro Tsujikawa 079db14d45 Add nghttp2_session_consume() API
Reworked no automatic WINDOW_UPDATE feature.  We added new API
nghttp2_session_consume() which tells the library how many bytes are
consumed by the application.  Instead of submitting WINDOW_UPDATE by
the application, the library is now responsible to submit
WINDOW_UPDATE based on consumed bytes.  This is more reliable method,
since it enables us to properly send WINDOW_UPDATE for stream and
connection individually.  The previous implementation of nghttpx had
broken connection window management.
2014-07-31 23:05:53 +09:00
Tatsuhiro Tsujikawa 78df530b90 Don't ignore aux_data for HEADERS with NGHTTP2_HCAT_HEADERS tag 2014-07-31 23:05:52 +09:00
Tatsuhiro Tsujikawa 55c697e9f4 Handle multiple SETTINGS_HEADER_TABLE_SIZE in incoming SETTINGS frame
Previously we just assumed that if same settings ID is found in
SETTINGS, it is enough to process last seen entry.  But it turns out
it is not enough for SETTINGS_HEADER_TABLE_SIZE.  If we have 0 and
4096 for SETTINGS_HEADER_TABLE_SIZE in one SETTINGS, we must first
shrink dynamic table to 0 and then enlarge it to 4096.  This means
that we have to remember the minimum value and last value.
2014-07-15 00:25:31 +09:00
Tatsuhiro Tsujikawa 8f1249ab67 Check NGHTTP2_GOAWAY_SEND and NGHTTP2_GOAWAY_RECV flags explicitly 2014-07-12 23:16:25 +09:00
Tatsuhiro Tsujikawa 35ffeb5ff4 Send additional debug info when terminating session 2014-07-12 22:57:17 +09:00
Tatsuhiro Tsujikawa d3ca003346 Update android-config and fix build warning with android NDK 2014-07-06 23:32:08 +09:00
Tatsuhiro Tsujikawa 4b6f124b7e Add API to check half-closed state for both direction of stream 2014-07-03 21:44:29 +09:00
Tatsuhiro Tsujikawa e5abc475f1 Don't send more than NGHTTP2_MAX_HEADERSLEN bytes header block 2014-07-02 22:45:38 +09:00