From 968293d5e721b9c7ff4098ee76a3313b0b7fd2ac Mon Sep 17 00:00:00 2001 From: Roman Arutyunyan Date: Thu, 27 Jul 2023 13:35:42 +0400 Subject: QUIC: fixed congesion control in GSO mode. In non-GSO mode, a datagram is sent if congestion window is not exceeded by the time of send. The window could be exceeded by a small amount after the send. In GSO mode, congestion window was checked in a similar way, but for all concatenated datagrams as a whole. This could result in exceeding congestion window by a lot. Now congestion window is checked for every datagram in GSO mode as well. --- src/event/quic/ngx_event_quic_output.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src') diff --git a/src/event/quic/ngx_event_quic_output.c b/src/event/quic/ngx_event_quic_output.c index 88b7df6ab..37de44c74 100644 --- a/src/event/quic/ngx_event_quic_output.c +++ b/src/event/quic/ngx_event_quic_output.c @@ -358,7 +358,7 @@ ngx_quic_create_segments(ngx_connection_t *c) len = ngx_min(segsize, (size_t) (end - p)); - if (len && cg->in_flight < cg->window) { + if (len && cg->in_flight + (p - dst) < cg->window) { n = ngx_quic_output_packet(c, ctx, p, len, len); if (n == NGX_ERROR) { -- cgit v1.2.3