diff options
Diffstat (limited to 'lib/nghttp2_session.h')
| -rw-r--r-- | lib/nghttp2_session.h | 77 |
1 files changed, 70 insertions, 7 deletions
diff --git a/lib/nghttp2_session.h b/lib/nghttp2_session.h index 90ead9c..34d2d58 100644 --- a/lib/nghttp2_session.h +++ b/lib/nghttp2_session.h @@ -52,7 +52,9 @@ typedef enum { NGHTTP2_OPTMASK_NO_RECV_CLIENT_MAGIC = 1 << 1, NGHTTP2_OPTMASK_NO_HTTP_MESSAGING = 1 << 2, NGHTTP2_OPTMASK_NO_AUTO_PING_ACK = 1 << 3, - NGHTTP2_OPTMASK_NO_CLOSED_STREAMS = 1 << 4 + NGHTTP2_OPTMASK_NO_CLOSED_STREAMS = 1 << 4, + NGHTTP2_OPTMASK_SERVER_FALLBACK_RFC7540_PRIORITIES = 1 << 5, + NGHTTP2_OPTMASK_NO_RFC9113_LEADING_AND_TRAILING_WS_VALIDATION = 1 << 6, } nghttp2_optmask; /* @@ -62,7 +64,8 @@ typedef enum { typedef enum { NGHTTP2_TYPEMASK_NONE = 0, NGHTTP2_TYPEMASK_ALTSVC = 1 << 0, - NGHTTP2_TYPEMASK_ORIGIN = 1 << 1 + NGHTTP2_TYPEMASK_ORIGIN = 1 << 1, + NGHTTP2_TYPEMASK_PRIORITY_UPDATE = 1 << 2 } nghttp2_typemask; typedef enum { @@ -151,10 +154,8 @@ typedef struct { /* padding length for the current frame */ size_t padlen; nghttp2_inbound_state state; - /* Small buffer. Currently the largest contiguous chunk to buffer - is frame header. We buffer part of payload, but they are smaller - than frame header. */ - uint8_t raw_sbuf[NGHTTP2_FRAME_HDLEN]; + /* Small fixed sized buffer. */ + uint8_t raw_sbuf[32]; } nghttp2_inbound_frame; typedef struct { @@ -165,6 +166,7 @@ typedef struct { uint32_t max_frame_size; uint32_t max_header_list_size; uint32_t enable_connect_protocol; + uint32_t no_rfc7540_priorities; } nghttp2_settings_storage; typedef enum { @@ -202,6 +204,12 @@ struct nghttp2_session { response) frame, which are subject to SETTINGS_MAX_CONCURRENT_STREAMS limit. */ nghttp2_outbound_queue ob_syn; + /* Queues for DATA frames which is used when + SETTINGS_NO_RFC7540_PRIORITIES is enabled. This implements RFC + 9218 extensible prioritization scheme. */ + struct { + nghttp2_pq ob_data; + } sched[NGHTTP2_EXTPRI_URGENCY_LEVELS]; nghttp2_active_outbound_item aob; nghttp2_inbound_frame iframe; nghttp2_hd_deflater hd_deflater; @@ -227,6 +235,9 @@ struct nghttp2_session { /* Queue of In-flight SETTINGS values. SETTINGS bearing ACK is not considered as in-flight. */ nghttp2_inflight_settings *inflight_settings_head; + /* Sequential number across all streams to process streams in + FIFO. */ + uint64_t stream_seq; /* The number of outgoing streams. This will be capped by remote_settings.max_concurrent_streams. */ size_t num_outgoing_streams; @@ -267,6 +278,8 @@ struct nghttp2_session { /* The maximum length of header block to send. Calculated by the same way as nghttp2_hd_deflate_bound() does. */ size_t max_send_header_block_length; + /* The maximum number of settings accepted per SETTINGS frame. */ + size_t max_settings; /* Next Stream ID. Made unsigned int to detect >= (1 << 31). */ uint32_t next_stream_id; /* The last stream ID this session initiated. For client session, @@ -326,6 +339,11 @@ struct nghttp2_session { /* Unacked local ENABLE_CONNECT_PROTOCOL value. We use this to accept :protocol header field before SETTINGS_ACK is received. */ uint8_t pending_enable_connect_protocol; + /* Unacked local SETTINGS_NO_RFC7540_PRIORITIES value, which is + effective before it is acknowledged. */ + uint8_t pending_no_rfc7540_priorities; + /* Turn on fallback to RFC 7540 priorities; for server use only. */ + uint8_t fallback_rfc7540_priorities; /* Nonzero if the session is server side. */ uint8_t server; /* Flags indicating GOAWAY is sent and/or received. The flags are @@ -406,7 +424,7 @@ int nghttp2_session_add_rst_stream(nghttp2_session *session, int32_t stream_id, uint32_t error_code); /* - * Adds PING frame. This is a convenient functin built on top of + * Adds PING frame. This is a convenient function built on top of * nghttp2_session_add_frame() to add PING easily. * * If the |opaque_data| is not NULL, it must point to 8 bytes memory @@ -772,6 +790,19 @@ int nghttp2_session_on_origin_received(nghttp2_session *session, nghttp2_frame *frame); /* + * Called when PRIORITY_UPDATE is received, assuming |frame| is + * properly initialized. + * + * This function returns 0 if it succeeds, or one of the following + * negative error codes: + * + * NGHTTP2_ERR_CALLBACK_FAILURE + * The callback function failed. + */ +int nghttp2_session_on_priority_update_received(nghttp2_session *session, + nghttp2_frame *frame); + +/* * Called when DATA is received, assuming |frame| is properly * initialized. * @@ -898,4 +929,36 @@ int nghttp2_session_terminate_session_with_reason(nghttp2_session *session, uint32_t error_code, const char *reason); +/* + * Accumulates received bytes |delta_size| for connection-level flow + * control and decides whether to send WINDOW_UPDATE to the + * connection. If NGHTTP2_OPT_NO_AUTO_WINDOW_UPDATE is set, + * WINDOW_UPDATE will not be sent. + * + * This function returns 0 if it succeeds, or one of the following + * negative error codes: + * + * NGHTTP2_ERR_NOMEM + * Out of memory. + */ +int nghttp2_session_update_recv_connection_window_size(nghttp2_session *session, + size_t delta_size); + +/* + * Accumulates received bytes |delta_size| for stream-level flow + * control and decides whether to send WINDOW_UPDATE to that stream. + * If NGHTTP2_OPT_NO_AUTO_WINDOW_UPDATE is set, WINDOW_UPDATE will not + * be sent. + * + * This function returns 0 if it succeeds, or one of the following + * negative error codes: + * + * NGHTTP2_ERR_NOMEM + * Out of memory. + */ +int nghttp2_session_update_recv_stream_window_size(nghttp2_session *session, + nghttp2_stream *stream, + size_t delta_size, + int send_window_update); + #endif /* NGHTTP2_SESSION_H */ |