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Initial parsing of STREAM frames.

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This commit is contained in:
Vladimir Homutov 2020-03-11 15:41:35 +03:00
parent 0d10672137
commit 6bf6635d86
1 changed files with 68 additions and 1 deletions
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69
src/event/ngx_event_quic.c
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@ -104,7 +104,14 @@ do { \
#define NGX_QUIC_FT_STOP_SENDING 0x05
#define NGX_QUIC_FT_CRYPTO 0x06
#define NGX_QUIC_FT_NEW_TOKEN 0x07
#define NGX_QUIC_FT_STREAM 0x08 // - 0x0f
#define NGX_QUIC_FT_STREAM 0x08
#define NGX_QUIC_FT_STREAM1 0x09
#define NGX_QUIC_FT_STREAM2 0x0A
#define NGX_QUIC_FT_STREAM3 0x0B
#define NGX_QUIC_FT_STREAM4 0x0C
#define NGX_QUIC_FT_STREAM5 0x0D
#define NGX_QUIC_FT_STREAM6 0x0E
#define NGX_QUIC_FT_STREAM7 0x0F
#define NGX_QUIC_FT_MAX_DATA 0x10
#define NGX_QUIC_FT_MAX_STREAM_DATA 0x11
#define NGX_QUIC_FT_MAX_STREAMS 0x12
@ -175,6 +182,14 @@ typedef struct {
} ngx_quic_ncid_t;
typedef struct {
uint64_t stream_id;
uint64_t offset;
uint64_t length;
u_char *data;
} ngx_quic_stream_frame_t;
struct ngx_quic_frame_s {
ngx_uint_t type;
ngx_quic_level_t level;
@ -183,6 +198,7 @@ struct ngx_quic_frame_s {
ngx_quic_crypto_frame_t crypto;
ngx_quic_ack_frame_t ack;
ngx_quic_ncid_t ncid;
ngx_quic_stream_frame_t stream;
// more frames
} u;
@ -1485,6 +1501,37 @@ ngx_quic_read_frame(ngx_connection_t *c, u_char *start, u_char *end,
return NGX_ERROR;
break;
case NGX_QUIC_FT_STREAM:
case NGX_QUIC_FT_STREAM1:
case NGX_QUIC_FT_STREAM2:
case NGX_QUIC_FT_STREAM3:
case NGX_QUIC_FT_STREAM4:
case NGX_QUIC_FT_STREAM5:
case NGX_QUIC_FT_STREAM6:
case NGX_QUIC_FT_STREAM7:
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
"STREAM frame, type: 0x%xi", frame->type);
frame->u.stream.stream_id = ngx_quic_parse_int(&p);
if (frame->type & 0x04) {
frame->u.stream.offset = ngx_quic_parse_int(&p);
} else {
frame->u.stream.offset = 0;
}
if (frame->type & 0x02) {
frame->u.stream.length = ngx_quic_parse_int(&p);
} else {
frame->u.stream.length = end - p; /* up to packet end */
}
frame->u.stream.data = p;
p += frame->u.stream.length;
break;
default:
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
"unknown frame type %xi", frame->type);
@ -1672,6 +1719,26 @@ ngx_quic_payload_handler(ngx_connection_t *c, ngx_quic_header_t *pkt)
frame.u.ncid.len);
continue;
case NGX_QUIC_FT_STREAM:
case NGX_QUIC_FT_STREAM1:
case NGX_QUIC_FT_STREAM2:
case NGX_QUIC_FT_STREAM3:
case NGX_QUIC_FT_STREAM4:
case NGX_QUIC_FT_STREAM5:
case NGX_QUIC_FT_STREAM6:
case NGX_QUIC_FT_STREAM7:
ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0,
"STREAM frame 0x%xi id 0x%xi off 0x%xi len 0x%xi",
frame.type,
frame.u.stream.stream_id,
frame.u.stream.offset,
frame.u.stream.length);
ngx_quic_hexdump0(c->log, "STREAM.data",
frame.u.stream.data, frame.u.stream.length);
break;
default:
ngx_log_error(NGX_LOG_INFO, c->log, 0,
"unexpected frame type 0x%xd in packet", frame.type);