# HG changeset patch
# User Sergey Kandaurov <pluknet@nginx.com>
# Date 1618603439 -10800
# Node ID 515ac3c8435c874296e60c578ecf65aa47f18503
# Parent  17492dfd4744cd52a31ac1ddb558858e17dc361f
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
--- 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
          /* 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 */