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QUIC: optimized datagram expansion with half-RTT tickets.

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As shown in RFC 8446, section 2.2, Figure 3, and further specified in
section 4.6.1, BoringSSL releases session tickets in Application Data
(along with Finished) early, based on a precalculated client Finished
transcript, once client signalled early data in extensions.
This commit is contained in:
Sergey Kandaurov 2022-02-15 14:12:34 +03:00
parent a767450093
commit 1381932d27
1 changed files with 7 additions and 4 deletions
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11
src/event/quic/ngx_event_quic_output.c
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@ -476,6 +476,7 @@ ngx_quic_send_segments(ngx_connection_t *c, u_char *buf, size_t len,
static ngx_uint_t static ngx_uint_t
ngx_quic_get_padding_level(ngx_connection_t *c) ngx_quic_get_padding_level(ngx_connection_t *c)
{ {
ngx_uint_t i;
ngx_queue_t *q; ngx_queue_t *q;
ngx_quic_frame_t *f; ngx_quic_frame_t *f;
ngx_quic_send_ctx_t *ctx; ngx_quic_send_ctx_t *ctx;
@ -499,13 +500,15 @@ ngx_quic_get_padding_level(ngx_connection_t *c)
f = ngx_queue_data(q, ngx_quic_frame_t, queue); f = ngx_queue_data(q, ngx_quic_frame_t, queue);
if (f->need_ack) { if (f->need_ack) {
ctx = ngx_quic_get_send_ctx(qc, ssl_encryption_handshake); for (i = 0; i + 1 < NGX_QUIC_SEND_CTX_LAST; i++) {
ctx = &qc->send_ctx[i + 1];
if (ngx_queue_empty(&ctx->frames)) { if (ngx_queue_empty(&ctx->frames)) {
return 0; break;
}
} }
return 1; return i;
} }
} }