Implement a new QUIC TLS related function
quic_tls_generate_retry_integrity_tag(). This function can be used to
calculate the AEAD tag of a Retry packet.
Add const qualifier on arguments of several dump functions used in the
trace callback. This is required to be able to replace the first trace
argument by a quic_conn instance. The first argument is a const pointer
and so the members accessed through it must also be const.
quic_tls_derive_keys() is responsible to derive the AEAD keys, IVs and$
header protection key from a secret provided by the TLS stack. We want
to make the derivation of the header protection key be optional. This
is required for the Key Update process where there is no update for
the header protection key.
These salts are used to derive initial secrets to decrypt the first Initial packet.
We support draft-29 and v1 QUIC version initial salts.
Add parameters to our QUIC-TLS API functions used to derive these secret for
these salts.
Make our xprt_quic use the correct initial salt upon QUIC version field found in
the first paquet. Useful to support connections with curl which use draft-29
QUIC version.
This salt is ued at leat up to draft-32. At this date ngtcp2 always
uses this salt even if it started the draft-33 development.
Note that when the salt is not correct, we cannot remove the header
protection. In this case the packet number length is wrong.
This patch imports all the C files for QUIC protocol implementation with few
modifications from 20200720-quic branch of quic-dev repository found at
https://github.com/haproxytech/quic-dev.
Traces were implemented to help with the development.
