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(parent: c73fb27) | patch
QUIC: ignore version negotiation packets.
authorRoman Arutyunyan <arut@nginx.com>
Fri, 13 Dec 2024 09:25:26 +0000 (13:25 +0400)
committerRoman Arutyunyan <arutyunyan.roman@gmail.com>
Thu, 26 Dec 2024 14:58:05 +0000 (18:58 +0400)
commita52ba8ba0e349585e49073c168e423c12abcf597
tree9e13779d9b30315622808517b50a87a4721f9715tree | snapshot
parentc73fb273acc31bff7c4e469efda5f3fd66c48557commit | diff
QUIC: ignore version negotiation packets.

Previously, such packets were treated as long header packets with unknown
version 0, and a version negotiation packet was sent in response.  This
could be used to set up an infinite traffic reflect loop with another nginx
instance.

Now version negotiation packets are ignored.  As per RFC 9000, Section 6.1:

  An endpoint MUST NOT send a Version Negotiation packet in response to
  receiving a Version Negotiation packet.
src/event/quic/ngx_event_quic_transport.c diff | blob | history
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