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MINOR: quic: Increase the size of handshake RX UDP datagrams

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Some browsers may send Initial packets with sizes greater than 1252 bytes
(QUIC_INITIAL_IPV4_MTU). Let us increase this size limit up to 2048 bytes.
Also use this size for "max_udp_payload_size" transport parameter to limit
the size of the datagrams we want to receive.
This commit is contained in:
Frédéric Lécaille 2021-10-22 15:04:27 +02:00 committed by Amaury Denoyelle
parent dbb0bb59e3
commit 46be7e92b4
2 changed files with 2 additions and 2 deletions
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2
include/haproxy/xprt_quic-t.h
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@ -50,7 +50,7 @@ typedef unsigned long long ull;
#define QUIC_INITIAL_IPV6_MTU 1232
/* XXX TO DO XXX */
/* Maximum packet length during handshake */
#define QUIC_PACKET_MAXLEN QUIC_INITIAL_IPV4_MTU
#define QUIC_PACKET_MAXLEN 2048
/* The minimum length of Initial packets. */
#define QUIC_INITIAL_PACKET_MINLEN 1200

2
src/xprt_quic.c
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@ -56,7 +56,7 @@
* before updating them with customized values.
*/
struct quic_transport_params quic_dflt_transport_params = {
.max_udp_payload_size = QUIC_DFLT_MAX_UDP_PAYLOAD_SIZE,
.max_udp_payload_size = QUIC_PACKET_MAXLEN,
.ack_delay_exponent = QUIC_DFLT_ACK_DELAY_COMPONENT,
.max_ack_delay = QUIC_DFLT_MAX_ACK_DELAY,
.active_connection_id_limit = QUIC_ACTIVE_CONNECTION_ID_LIMIT,