From: Sergey Kandaurov <pluknet@nginx.com>
Date: Fri, 16 Apr 2021 20:03:59 +0000 (+0300)
Subject: QUIC: fixed permitted packet types for PATH_RESPONSE.
X-Git-Tag: release-1.25.0~4^2~350
X-Git-Url: http://git.kaiwu.me/%7B@url%7D?a=commitdiff_plain;h=256db862fd54e51e2334187da383943c81a9f406;p=nginx.git

QUIC: fixed permitted packet types for PATH_RESPONSE.

PATH_RESPONSE was explicitly forbidden in 0-RTT since at least draft-22, but
the Frame Types table was not updated until recently while in IESG evaluation.
---

diff --git a/src/event/quic/ngx_event_quic_transport.c b/src/event/quic/ngx_event_quic_transport.c
index 0d84546eb..2524223d6 100644
--- a/src/event/quic/ngx_event_quic_transport.c
+++ b/src/event/quic/ngx_event_quic_transport.c
@@ -1137,7 +1137,7 @@ ngx_quic_frame_allowed(ngx_quic_header_t *pkt, ngx_uint_t frame_type)
          /* NEW_CONNECTION_ID */     0x3,
          /* RETIRE_CONNECTION_ID */  0x3,
          /* PATH_CHALLENGE */        0x3,
-         /* PATH_RESPONSE */         0x3,
+         /* PATH_RESPONSE */         0x1,
          /* CONNECTION_CLOSE */      0xF,
          /* CONNECTION_CLOSE2 */     0x3,
          /* HANDSHAKE_DONE */        0x0, /* only sent by server */