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QUIC: handle more frames in ngx_quic_resend_frames().

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When a packet is declared lost, its frames are handled differently according to
13.3. Retransmission of Information.
This commit is contained in:
Roman Arutyunyan 2020-10-29 14:25:02 +00:00
parent 21a5955f75
commit c3e8e59a55
1 changed files with 58 additions and 0 deletions
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58
src/event/ngx_event_quic.c
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@ -4832,8 +4832,11 @@ ngx_quic_detect_lost(ngx_connection_t *c)
static void static void
ngx_quic_resend_frames(ngx_connection_t *c, ngx_quic_send_ctx_t *ctx) ngx_quic_resend_frames(ngx_connection_t *c, ngx_quic_send_ctx_t *ctx)
{ {
size_t n;
ngx_buf_t *b;
ngx_queue_t *q; ngx_queue_t *q;
ngx_quic_frame_t *f, *start; ngx_quic_frame_t *f, *start;
ngx_quic_stream_t *sn;
ngx_quic_connection_t *qc; ngx_quic_connection_t *qc;
qc = c->quic; qc = c->quic;
@ -4864,6 +4867,61 @@ ngx_quic_resend_frames(ngx_connection_t *c, ngx_quic_send_ctx_t *ctx)
ngx_quic_free_frame(c, f); ngx_quic_free_frame(c, f);
break; break;
case NGX_QUIC_FT_PING:
case NGX_QUIC_FT_PATH_RESPONSE:
case NGX_QUIC_FT_CONNECTION_CLOSE:
ngx_quic_free_frame(c, f);
break;
case NGX_QUIC_FT_MAX_DATA:
f->u.max_data.max_data = qc->streams.recv_max_data;
ngx_quic_queue_frame(qc, f);
break;
case NGX_QUIC_FT_MAX_STREAMS:
case NGX_QUIC_FT_MAX_STREAMS2:
f->u.max_streams.limit = f->u.max_streams.bidi
? qc->streams.client_max_streams_bidi
: qc->streams.client_max_streams_uni;
ngx_quic_queue_frame(qc, f);
break;
case NGX_QUIC_FT_MAX_STREAM_DATA:
sn = ngx_quic_find_stream(&qc->streams.tree,
f->u.max_stream_data.id);
if (sn == NULL) {
ngx_quic_free_frame(c, f);
break;
}
b = sn->b;
n = sn->fs.received + (b->pos - b->start) + (b->end - b->last);
if (f->u.max_stream_data.limit < n) {
f->u.max_stream_data.limit = n;
}
ngx_quic_queue_frame(qc, f);
break;
case NGX_QUIC_FT_STREAM0:
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:
sn = ngx_quic_find_stream(&qc->streams.tree, f->u.stream.stream_id);
if (sn && sn->c->write->error) {
/* RESET_STREAM was sent */
ngx_quic_free_frame(c, f);
break;
}
/* fall through */
default: default:
ngx_queue_insert_tail(&ctx->frames, &f->queue); ngx_queue_insert_tail(&ctx->frames, &f->queue);
} }