Commit Graph

7793 Commits

Author SHA1 Message Date
Vladimir Homutov
57544f7589 Implemented sending HANDSHAKE_DONE frame after handshake.
This makes it possible to switch to draft 27 by default.
2020-03-24 11:59:14 +03:00
Sergey Kandaurov
f20af3dabc Fixed client certificate verification.
For ngx_http_process_request() part to work, this required to set both
r->http_connection->ssl and c->ssl on a QUIC stream.  To avoid damaging
global SSL object, ngx_ssl_shutdown() is managed to ignore QUIC streams.
2020-03-23 20:48:34 +03:00
Roman Arutyunyan
5ac5e51fdf Respect QUIC max_idle_timeout. 2020-03-23 21:20:20 +03:00
Roman Arutyunyan
9975b088bb Allow ngx_queue_frame() to insert frame in the front.
Previously a frame could only be inserted after the first element of the list.
2020-03-23 19:42:09 +03:00
Roman Arutyunyan
ede2656c60 Support for HTTP/3 ALPN.
This is required by Chrome.
2020-03-23 19:26:24 +03:00
Roman Arutyunyan
77a4c2d172 Put zero in 'First ACK Range' when acknowledging one packet.
This fixes Chrome CONNECTION_ID_LIMIT_ERROR with the reason:
"Underflow with first ack block length 2 largest acked is 1".
2020-03-23 15:32:24 +03:00
Roman Arutyunyan
f4562d7ed9 Avoid using QUIC connection after CONNECTION_CLOSE. 2020-03-23 19:19:44 +03:00
Roman Arutyunyan
3fa1dec9c7 Better flow control and buffering for QUIC streams. 2020-03-23 15:49:31 +03:00
Roman Arutyunyan
72b0a1b32a Limit output QUIC packets with client max_packet_size.
Additionally, receive larger packets than 512 bytes.
2020-03-23 18:47:17 +03:00
Sergey Kandaurov
280c18bdce Fixed received ACK fields order in debug logging. 2020-03-23 18:20:42 +03:00
Vladimir Homutov
5018d9eecc Connection states code cleanup.
+ ngx_quic_init_ssl_methods() is no longer there, we setup methods on SSL
   connection directly.

 + the handshake_handler is actually a generic quic input handler

 + updated c->log->action and debug to reflect changes and be more informative

 + c->quic is always set in ngx_quic_input()

 + the quic connection state is set by the results of SSL_do_handshake();
2020-03-23 14:53:04 +03:00
Vladimir Homutov
b3129b46f6 Skip unknown transport parameters. 2020-03-23 12:57:24 +03:00
Vladimir Homutov
6a3a0ee19f Add unsupported version into log.
This makes it easier to understand what client wants.
2020-03-23 10:57:28 +03:00
Vladimir Homutov
4490aefa70 Added processing of client transport parameters.
note:
 + parameters are available in SSL connection since they are obtained by ssl
   stack

quote:
   During connection establishment, both endpoints make authenticated
   declarations of their transport parameters.  These declarations are
   made unilaterally by each endpoint.

and really, we send our parameters before we read client's.

no handling of incoming parameters is made by this patch.
2020-03-21 20:51:59 +03:00
Sergey Kandaurov
de095d5f1d Fixed CRYPTO offset generation. 2020-03-22 12:15:54 +03:00
Sergey Kandaurov
ccb0049e3f Closing connection on NGX_QUIC_FT_CONNECTION_CLOSE. 2020-03-22 11:35:15 +03:00
Vladimir Homutov
63e6c9349e Implemented parsing of remaining frame types. 2020-03-21 20:49:55 +03:00
Sergey Kandaurov
2af37e507d Fixed parsing NGX_QUIC_FT_CONNECTION_CLOSE. 2020-03-21 19:45:24 +03:00
Sergey Kandaurov
79e49c2a16 Fixed buffer overrun in create_transport_params() with -24.
It writes 16-bit prefix as designed, but length calculation assumed varint.
2020-03-21 19:22:39 +03:00
Sergey Kandaurov
4764ef1590 Fixed build with macOS's long long abomination. 2020-03-21 18:44:10 +03:00
Roman Arutyunyan
0f77eac8af Removed unused variable. 2020-03-20 23:49:42 +03:00
Vladimir Homutov
b26d5deae4 Removed unused variable. 2020-03-20 20:39:41 +03:00
Vladimir Homutov
21b6854bfe Added checks for permitted frame types.
+ cleanup in macros for packet types
 + some style fixes in quic_transport.h (case, indentation)
2020-03-20 20:03:44 +03:00
Vladimir Homutov
1d35d0f31e Fixed parsing of CONNECTION CLOSE2 frames.
The "frame_type" field is not passed in case of 0x1d frame.
2020-03-20 15:14:00 +03:00
Vladimir Homutov
6565860bd8 Added parsing of CONNECTION_CLOSE2 frame (0x1D).
The difference is that error code refers to application namespace, i.e.
quic error names cannot be used to convert it to string.
2020-03-20 14:50:05 +03:00
Vladimir Homutov
4096676897 Adedd the http "quic" variable.
The value is literal "quic" for requests passed over HTTP/3, and empty string
otherwise.
2020-03-20 12:44:45 +03:00
Vladimir Homutov
30de0ca52d Configurable transport parameters.
- integer parameters can be configured using the following directives:

    quic_max_idle_timeout
    quic_max_ack_delay
    quic_max_packet_size
    quic_initial_max_data
    quic_initial_max_stream_data_bidi_local
    quic_initial_max_stream_data_bidi_remote
    quic_initial_max_stream_data_uni
    quic_initial_max_streams_bidi
    quic_initial_max_streams_uni
    quic_ack_delay_exponent
    quic_active_migration
    quic_active_connection_id_limit

 - only following parameters are actually sent:

    active_connection_id_limit
    initial_max_streams_uni
    initial_max_streams_bidi
    initial_max_stream_data_bidi_local
    initial_max_stream_data_bidi_remote
    initial_max_stream_data_uni

 (other parameters are to be added into ngx_quic_create_transport_params()
  function as needed, should be easy now)

 - draft 24 and draft 27 are now supported
   (at compile-time using quic_version macro)
2020-03-20 13:47:44 +03:00
Roman Arutyunyan
5f9b188c21 Reset QUIC timeout on every datagram. 2020-03-19 21:46:28 +03:00
Roman Arutyunyan
3ba0d03a6e Double MAX_STREAMS on STREAMS_BLOCKED. 2020-03-20 10:14:58 +03:00
Roman Arutyunyan
ea6809ac73 Fixed ACKs to packet numbers greater than 63. 2020-03-20 09:23:31 +03:00
Sergey Kandaurov
2710df57c7 Fixed specifiers in "quic packet length" logging. 2020-03-19 17:33:36 +03:00
Sergey Kandaurov
06294ab67a Fixed build. 2020-03-19 17:22:43 +03:00
Vladimir Homutov
1b4b8af624 The ngx_quic_frame_len() function is not really needed. 2020-03-19 14:59:55 +03:00
Vladimir Homutov
18ce6d5ebf Added boundaries checks into frame parser.
The ngx_quic_parse_frame() functions now has new 'pkt' argument: the packet
header of a currently processed frame.  This allows to log errors/debug
closer to reasons and perform additional checks regarding possible frame
types.  The handler only performs processing of good frames.


A number of functions like read_uint32(), parse_int[_multi] probably should
be implemented as a macro, but currently it is better to have them as
functions for simpler debugging.
2020-03-19 17:07:12 +03:00
Roman Arutyunyan
4cbfc07394 Send a FIN frame when QUIC stream is closed. 2020-03-19 15:34:35 +03:00
Roman Arutyunyan
8ad2707d4f Fixed header creation for header_only responses in HTTP/3. 2020-03-19 15:03:09 +03:00
Sergey Kandaurov
31e794f0ad MAX_DATA frame parser/handler. 2020-03-18 23:26:26 +03:00
Vladimir Homutov
33d8317dd5 Added parsing of STREAMS BLOCKED frames.
While there, added hex prefix for debug to avoid frame type confusion.
2020-03-19 11:15:43 +03:00
Sergey Kandaurov
6aa611c314 Implemented send_alert callback, CONNECTION_CLOSE writer.
The callback produces a CONNECTION_CLOSE frame, as per quic-tls-24#section-4.9.
2020-03-18 23:07:40 +03:00
Roman Arutyunyan
0561665873 Added copying addr_text to QUIC stream connections.
Now $remote_addr holds client address.
2020-03-18 20:28:28 +03:00
Roman Arutyunyan
e63accd7bd HTTP/3 $request_line variable. 2020-03-18 20:22:16 +03:00
Roman Arutyunyan
5aa8e519c9 Moved setting QUIC methods to runtime.
This allows listening to both https and http3 in the same server.
Also, the change eliminates the ssl_quic directive.
2020-03-18 16:37:16 +03:00
Vladimir Homutov
50f919cec4 Added parsing of RESET_STREAM and STOP_SENDING frames 2020-03-18 16:35:11 +03:00
Roman Arutyunyan
04d037b239 Fixed pointer increment while parsing HTTP/3 header. 2020-03-18 15:28:20 +03:00
Vladimir Homutov
2973465556 Implemented creation of server unidirectional streams.
The ngx_quic_create_stream() function is a generic function extracted from
the ngx_quic_handle_stream_frame() function.
2020-03-18 13:49:39 +03:00
Roman Arutyunyan
d36684447c Fixed HTTP/3 server stream creation. 2020-03-18 14:10:44 +03:00
Roman Arutyunyan
85430505fe Removed comment. 2020-03-18 14:09:50 +03:00
Roman Arutyunyan
01dc7445f0 Refactored HTTP/3 parser. 2020-03-18 13:46:35 +03:00
Vladimir Homutov
023dbc3cfb Style and handlers.
Cleanup in ngx_event_quic.c:
    + reorderded functions, structures
    + added missing prototypes
    + added separate handlers for each frame type
    + numerous indentation/comments/TODO fixes
    + removed non-implemented qc->state and corresponding enum;
        this requires deep thinking, stub was unused.
    + streams inside quic connection are now in own structure
2020-03-18 13:02:19 +03:00
Vladimir Homutov
23dc6a68a4 Extracted transport part of the code into separate file.
All code dealing with serializing/deserializing
is moved int srv/event/ngx_event_quic_transport.c/h file.

All macros for dealing with data are internal to source file.

The header file exposes frame types and error codes.

The exported functions are currently packet header parsers and writers
and frames parser/writer.

The ngx_quic_header_t structure is updated with 'log' member. This avoids
passing extra argument to parsing functions that need to report errors.
2020-03-18 12:58:27 +03:00