Commit Graph

248 Commits

Author SHA1 Message Date
Tatsuhiro Tsujikawa 74daa16a1c Retain incoming closed streams for dependency tree
The number of closed stream to keep is limited by
MAX_CONCURRENT_STREAMS - current active stream.
2014-03-30 17:41:54 +09:00
Tatsuhiro Tsujikawa c12b6bc360 Call on_stream_close_callback for a stream in reserved state
This is useful because application may allocate resources for it and
wants to free the resources if they are not used anymore.
2014-03-30 01:24:16 +09:00
Tatsuhiro Tsujikawa 58da463ad6 Make deflater bad state if parsing HEADERS/PUSH_PROMISE failed 2014-03-30 01:24:16 +09:00
Tatsuhiro Tsujikawa 36c8de9da5 Limit the number of streams in one dependency tree 2014-03-30 01:24:16 +09:00
Tatsuhiro Tsujikawa f7162ab702 Implement dependency based priority 2014-03-30 01:24:16 +09:00
Tatsuhiro Tsujikawa dbb82b0f9c Make opaque_data parameter in nghttp2_submit_goaway const 2014-03-22 19:05:58 +09:00
Tatsuhiro Tsujikawa e1eebf08fb Support DEBUG_DATA in GOAWAY again 2014-03-22 18:59:59 +09:00
Tatsuhiro Tsujikawa 01586f473d Wrap small inbound buffer by nghttp_buf 2014-03-22 18:27:38 +09:00
Tatsuhiro Tsujikawa 774cf88f68 Don't add RST_STREAM frame if stream is in NGHTTP2_STREAM_CLOSING 2014-03-22 00:51:40 +09:00
Tatsuhiro Tsujikawa 1dfe2f8670 Add nghttp2_session_get_stream_remote_window_size public API function 2014-03-22 00:34:25 +09:00
Tatsuhiro Tsujikawa d0fbbe6932 Less cryptic debug message 2014-03-20 00:27:39 +09:00
Tatsuhiro Tsujikawa 68b392817b nghttp2_bufs: Add chunk_keep to specify the number of buffers to keep on reset 2014-03-16 21:38:13 +09:00
Tatsuhiro Tsujikawa 5b81f7c713 Don't show PAD_HIGH and PAD_LOW flags to user callback 2014-03-14 21:53:03 +09:00
Tatsuhiro Tsujikawa 781d1a2b70 Code cleanup 2014-03-14 02:23:50 +09:00
Tatsuhiro Tsujikawa aefc0d1ebb Use calloc instead of malloc + memset; remove useless memset 2014-03-13 23:27:14 +09:00
Tatsuhiro Tsujikawa 1be8d1b797 inflate_header_block: Issue RST_STREAM if header decompression failed 2014-03-13 23:02:33 +09:00
Tatsuhiro Tsujikawa 0fa4779d38 Don't call on_frame_recv_callback after stream close or being closed 2014-03-13 22:49:37 +09:00
Tatsuhiro Tsujikawa d07bb1ddff Rework outbound frame buffers 2014-03-13 22:11:02 +09:00
Tatsuhiro Tsujikawa 7b2d585896 Return 0 if nghttp2_session_prep_frame succeeds rather than frame length 2014-03-11 02:15:05 +09:00
Tatsuhiro Tsujikawa 74f899fc01 Replace NGHTTP2_MAX_FRAME_LENGTH with NGHTTP2_MAX_PAYLOADLEN 2014-03-11 02:01:08 +09:00
Tatsuhiro Tsujikawa e803c6b65e Replace NGHTTP2_FRAME_HEAD_LENGTH with NGHTTP2_FRAME_HDLEN 2014-03-11 01:55:42 +09:00
Tatsuhiro Tsujikawa 358b4386d3 Introduce nghttp2_buf to ease buffer management 2014-03-11 01:47:38 +09:00
Tatsuhiro Tsujikawa 54dab50015 Support END_SEGMENT in nghttp2_submit_data() 2014-03-06 00:19:02 +09:00
Tatsuhiro Tsujikawa b60679808b Filter supported flags in received frame 2014-03-05 23:25:42 +09:00
Tatsuhiro Tsujikawa 979feaecc6 Mitigate heap fragmentation when lots of concurrent http2 sessions run 2014-03-02 16:34:23 +09:00
Tatsuhiro Tsujikawa d1c1deaf03 Add promised_stream_user_data parameter to nghttp2_submit_push_promise
This is very useful to associate application specific data to promised
stream.

nghttp2_nv_array_copy now does not complain the header field is large.
2014-02-25 00:26:12 +09:00
Tatsuhiro Tsujikawa 9703c5de5c Code cleanup 2014-02-20 23:12:42 +09:00
Tatsuhiro Tsujikawa 3395f7158f Strict handling of max concurrent streams
Exceeding ACKed max concurrent streams results in connection error.
This change fixes the bug that num_{incoming,outgoing}_streams
is decremented wrongly if a stream is in reserved state and
RST_STREAM is send and its state is changed to NGHTTP2_STREAM_CLOSING.
This change also fixes the bug that transmission of push response
HEADERS does not increase num_outgoing_streams.
2014-02-20 23:10:32 +09:00
Tatsuhiro Tsujikawa 4ced1c1622 Code cleanup 2014-02-19 01:08:52 +09:00
Tatsuhiro Tsujikawa 649586fff6 Add nghttp2_session_mem_send() API function
This function behaves like nghttp2_session_send(), but it does not
use nghttp2_send_callback to send data. Instead, it returns the
serialized data to trasmit and its length to the caller.
2014-02-18 23:23:11 +09:00
Tatsuhiro Tsujikawa 0da79865b8 Don't set PAD_HIGH and PAD_LOW flags to HEADERS/PUSH_PROMISE object to user cb 2014-02-15 17:12:17 +09:00
Tatsuhiro Tsujikawa 3f3f258cd6 Add padding to PUSH_PROMISE 2014-02-15 16:30:43 +09:00
Tatsuhiro Tsujikawa 1e95c8b313 Allow always max 1024 padding for HEADERS
We need paddings regardless of payload and frame boundary to mitigate
certain attacks.

Since we handles CONTINUATION internally, we don't show FLAG_PAD_HIGH
and PAD_LOW flags of HEADERS in nghttp/nghttpd. We just show the
total paddings in HEADERS + CONTINUATION.
2014-02-15 01:34:04 +09:00
Tatsuhiro Tsujikawa 622f783675 Disallow PUSH_PROMISE from client side 2014-02-14 16:12:04 +09:00
Tatsuhiro Tsujikawa 7ab4206269 Tear down connection if SETTINGS makes window size overflow 2014-02-14 16:08:39 +09:00
Tatsuhiro Tsujikawa fd88c6160d HPACK post -05 updates
* Use 1 Huffman code table for both request and response
* Remove complicated deflater side table size management
* Add encoding context update
* Fix memory leak in inflater
2014-02-13 23:22:52 +09:00
Tatsuhiro Tsujikawa 082876d92d Contribute flow control window for each byte PAD_HIGH and _LOW in DATA
This may help the pathological situation where window is too small.
2014-02-12 21:35:40 +09:00
Tatsuhiro Tsujikawa c7a17093cb Fix compile errors with --enable-maintainer-mode 2014-02-11 21:39:35 +09:00
Tatsuhiro Tsujikawa bac31e844a Add more debug output 2014-02-11 21:35:41 +09:00
Tatsuhiro Tsujikawa 7822bbd7e8 Fix PAD_HIGH and PAD_LOW are not counted in flow control 2014-02-11 21:30:44 +09:00
Tatsuhiro Tsujikawa dbb131d13d Simplify framebufmark calculation for DATA frame 2014-02-11 18:55:22 +09:00
Tatsuhiro Tsujikawa 6364ae1a98 Fix nghttp2_active_outbound_item is not reset on DATA deferred 2014-02-11 18:43:45 +09:00
Tatsuhiro Tsujikawa 16b5e99e88 Bitwise-OR last CONTINUATION flags to first HEADERS flags 2014-02-11 17:30:38 +09:00
Tatsuhiro Tsujikawa 788072af9b Fix HEADERS padding is not added 2014-02-11 17:23:08 +09:00
Tatsuhiro Tsujikawa 3144bcbe20 Remove unused iframe->error_code 2014-02-11 16:34:42 +09:00
Tatsuhiro Tsujikawa eb2856f3df Add inbound_frame_reset_left() not to forget to reset iframe->buflen 2014-02-11 16:33:07 +09:00
Tatsuhiro Tsujikawa 9865b46905 Don't change state in inbound_frame_handle_pad 2014-02-11 16:24:21 +09:00
Tatsuhiro Tsujikawa 78d202ac30 Callback based padding from application
Now previous padding options are removed and instead we added
select_padding_callback to select padding length for each frame
by application. If this callback is not implemented by application,
no padding is added.

This change also fixes the broken session_detect_idle_stream()
if stream_id is our side.
2014-02-11 15:28:44 +09:00
Tatsuhiro Tsujikawa 118ed09da5 Allow disabling padding 2014-02-09 23:53:53 +09:00
Tatsuhiro Tsujikawa 5b58b4ace5 Add padding if payload length is zero 2014-02-09 22:01:07 +09:00
Tatsuhiro Tsujikawa 68b5ffc1dc Rename padding related names 2014-02-09 21:46:15 +09:00
Tatsuhiro Tsujikawa ba95cd936d Fix flow control error because padding is excluded 2014-02-09 18:26:46 +09:00
Tatsuhiro Tsujikawa 1db2195389 Implement padding for HEADERS and CONTINUATION 2014-02-09 15:17:26 +09:00
Tatsuhiro Tsujikawa 10feab02e8 Fix bufoff_ptr if no padding is made 2014-02-09 12:39:43 +09:00
Tatsuhiro Tsujikawa e9d1ba2539 Handle incoming PAD_HIGH and PAD_LOW in inbound_frame_handle_padding 2014-02-09 12:39:43 +09:00
Tatsuhiro Tsujikawa 2ff3d97b2e Add nghttp2_frame_add_pad to deal with adding pads 2014-02-09 12:39:43 +09:00
Tatsuhiro Tsujikawa b6a0eff8a8 Add more DEBUGFs 2014-02-08 00:32:50 +09:00
Tatsuhiro Tsujikawa 814d0f76f3 Implement DATA frame padding 2014-02-08 00:23:18 +09:00
Tatsuhiro Tsujikawa f26270b5b4 Change SETTINGS payload format according to the spec 2014-02-06 22:06:42 +09:00
Tatsuhiro Tsujikawa 40a5756564 Terminate connection if unknown frame type is received 2014-02-06 21:42:49 +09:00
Tatsuhiro Tsujikawa f2c654f898 Fix reception of ENABLE_PUSH ignored; strict check for SETTINGS value 2014-02-06 21:39:58 +09:00
Tatsuhiro Tsujikawa c79adf6997 Remove flow control disabling feature 2014-02-06 00:23:20 +09:00
Tatsuhiro Tsujikawa 08ff95d402 Detect frame reception for idle stream and make it connection error
Only stream ID which larger than currently used stream ID is
detected as idle.
2014-02-01 17:03:55 +09:00
Tatsuhiro Tsujikawa 2402b46cf3 Fix bug header block is not ignored as properly 2014-01-30 21:26:18 +09:00
Tatsuhiro Tsujikawa ab684a9f30 Remove nghttp2_on_request_recv_callback
It is easy enough to check the end of incoming data by evaluating
frame->hd.flags & NGHTTP2_FLAG_END_STREAM in on_frame_recv_callback
2014-01-29 21:56:01 +09:00
Tatsuhiro Tsujikawa bbdc015e84 Call on_frame_recv_callback for DATA even if stream has been closed
This makes the callback semantics consistent with the other
frames like HEADERS/PUSH_PROMISE.
2014-01-29 21:34:48 +09:00
Tatsuhiro Tsujikawa e186e01933 Replace on_end_headers_callback with on_begin_headers_callback
Previously, there is inconsistency when on_frame_recv_callback
is called between HEADERS/PUSH_PROMISE and the other frames.
For former case, it is called before header block, in latter
case, it is called after whole frame is received. To make it
consistent, we call on_frame_recv_callback for HEADERS/PUSH_PROMISE
after its frame is fully received. Since on_frame_recv_callback
can signal the end of header block, we replaced on_end_headers_callback
with on_begin_headers_callback, which is called when the reception
of the header block is started.
2014-01-29 21:23:13 +09:00
Tatsuhiro Tsujikawa 4a56c0ae3d Update doc 2014-01-28 01:59:21 +09:00
Tatsuhiro Tsujikawa f308b7b512 Allow NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE return from on_headers_callback 2014-01-28 01:17:23 +09:00
Tatsuhiro Tsujikawa 7f5a87395e Refactor a bit 2014-01-27 23:28:45 +09:00
Tatsuhiro Tsujikawa a3193bee69 Code cleanup 2014-01-27 23:00:08 +09:00
Tatsuhiro Tsujikawa a3082b7c1e Remove nghttp2_on_data_recv_callback and nghttp2_on_data_send_callback
nghttp2_data is added to nghttp2_frame union. When DATA is
received, nghttp2_on_frame_recv_callback is called. When DATA is
sent, nghttp2_on_frame_send_callback is called.
2014-01-27 22:16:05 +09:00
Tatsuhiro Tsujikawa fc07a62337 Rename nghttp2_data as nghttp2_private_data
This is a preparation to add public nghttp2_data struct to
nghttp2_frame union.
2014-01-27 21:22:33 +09:00
Tatsuhiro Tsujikawa 9314e30987 Support transmission of CONTINUATION, change nghttp2_frame_hd
The maximum frame size including header block is still limited
to NGHTTP2_HD_MAX_BUFFER_LENGTH, which is 32KB.
2014-01-26 23:10:33 +09:00
Tatsuhiro Tsujikawa 91401cfe26 Support CONTINUATION frame reception 2014-01-26 20:31:28 +09:00
Tatsuhiro Tsujikawa e7fc2951b8 nghttp2_hd: Define dedicated struct for HPACK deflater and inflater 2014-01-26 17:53:04 +09:00
Tatsuhiro Tsujikawa 45a9f0b637 Remove nghttp2_frame_unpack_* functions 2014-01-26 16:46:18 +09:00
Tatsuhiro Tsujikawa dba2406aba nghttp2_sesson_mem_recv: Process incoming data in streaming fashion
Now incoming data is processed in very small buffer (up to 8 bytes)
using state machine. GOAWAY debug data can get to 16K - 1, and we
don't have callback for it. Since we don't want to buffer that
amount of data just for debugging, we currently discard it.
This change also makes parse_error callback not function.
It probably be removed from API.
2014-01-26 15:44:43 +09:00
Tatsuhiro Tsujikawa 8317559090 nghttp2_hd: Implement stream header inflater
This stream inflater can inflate incoming header block in streaming
fashion. Currently, we buffer up single name/value pair, but we chose
far more smaller buffer size than HTTP/2 frame size.
2014-01-25 18:24:15 +09:00
Tatsuhiro Tsujikawa 6540ac1bab Fix crash 2014-01-23 21:25:49 +09:00
Tatsuhiro Tsujikawa 62e394b3e3 Fix memory leak 2014-01-23 00:28:23 +09:00
Tatsuhiro Tsujikawa d647799c6f Take int account received data length to check flow control error 2014-01-20 19:50:11 +09:00
Tatsuhiro Tsujikawa 594e1caad6 Code cleanup 2014-01-20 00:01:10 +09:00
Tatsuhiro Tsujikawa d0968ea609 Tear down session if GOAWAY with stream ID != 0 2014-01-19 00:37:45 +09:00
Tatsuhiro Tsujikawa 2a95da6bee Code cleanup 2014-01-18 16:25:44 +09:00
Tatsuhiro Tsujikawa b6d039e888 Make nghttp2_is_fatal public API 2014-01-18 16:24:44 +09:00
Tatsuhiro Tsujikawa e960c56aad Don't call on_request_recv_callback if header decompression failed 2014-01-17 23:49:40 +09:00
Tatsuhiro Tsujikawa 22a4e3eab8 Remove nghttp2_session_continue
nghttp2_session_continue is removed. Now just call
nghttp2_session_mem_recv to continue after NGHTTP2_ERR_PAUSE.
2014-01-17 22:52:30 +09:00
Tatsuhiro Tsujikawa b2bf18d40f Code cleanup 2014-01-17 10:15:14 +09:00
Tatsuhiro Tsujikawa 5d535766bf inflate_header_block: Terminate session on compression error
Code cleanup is done as well
2014-01-17 10:13:33 +09:00
Tatsuhiro Tsujikawa 0e4b3d435e Emit header name/value pair using callback functions
Now, in nghttp2_on_frame_recv_callback, nva and nvlen in
HEADERS and PUSH_PROMISE frames are always NULL and 0 respectively.
The header name/value pairs are emitted successive
nghttp2_on_header_callback functions. The end of header fields are
signaled with nghttp2_on_end_headers_callback function.

Since NGHTTP2_ERR_PAUSE for nghttp2_on_frame_recv_callback is
introduced to handle header block, it is now deprecated.
Instead, nghttp2_on_header_callback can be paused using
NGHTTP2_ERR_PAUSE.
2014-01-17 01:49:43 +09:00
Tatsuhiro Tsujikawa a85a11c1d9 Update priority for the stream to get response only 2014-01-09 23:30:45 +09:00
Tatsuhiro Tsujikawa 5aa487c5ba nghttp2_stream: flags is now nghttp2_stream_flags
We use this flag to know whether it is pushed or not
2014-01-09 23:01:02 +09:00
Tatsuhiro Tsujikawa 45837a2cfa Ensure PRIORITY frame reception/transmission rule 2014-01-09 22:06:38 +09:00
Tatsuhiro Tsujikawa fe1a39ed10 Allow client side to send PUSH_PROMISE 2014-01-09 21:39:29 +09:00
Tatsuhiro Tsujikawa 9cb8754d09 Rename nghttp2_session_fail_session as nghttp2_session_terminate_session 2013-12-26 00:23:07 +09:00
Tatsuhiro Tsujikawa dfcdea894b Move header name/value pair validation to on_*_received functions 2013-12-25 23:38:55 +09:00
Tatsuhiro Tsujikawa 794633f894 Add nghttp2_session_set_stream_user_data API function 2013-12-23 17:40:34 +09:00
Tatsuhiro Tsujikawa 650f63c728 Fail session on the reception of DATA in closed stream or illegal state 2013-12-15 16:23:01 +09:00
Tatsuhiro Tsujikawa 41104f7b63 Abandon DATA frame priority adjustment (again)
We tried several times about this subject, but for the current
HTTP/2.0 priority scheme, we think it is best to serve the highest
priroty streams first (interleaving streams if there are several
higest ones). There are an issue when aggregating several frontend
connections to one connection in backend, but it is HTTP/2.0
spec issue, rather than implementation.
2013-12-14 17:02:59 +09:00