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add a handshake test for post-quantum-size ClientHellos (#3759)

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Post-quantum ClientHellos typically are larger than 1 MTU and will
therefore need to be split across multiple packets.
This commit is contained in:
Marten Seemann 2023-04-19 15:01:43 +02:00 • committed by GitHub
parent 7a393315bd
commit 969b5dc131
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3 changed files with 52 additions and 0 deletions
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15
internal/wire/transport_parameters.go
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@ -17,6 +17,12 @@ import (
"github.com/quic-go/quic-go/quicvarint"
)
// AdditionalTransportParametersClient are additional transport parameters that will be added
// to the client's transport parameters.
// This is not intended for production use, but _only_ to increase the size of the ClientHello beyond
// the usual size of less than 1 MTU.
var AdditionalTransportParametersClient map[uint64][]byte
const transportParameterMarshalingVersion = 1
func init() {
@ -402,6 +408,15 @@ func (p *TransportParameters) Marshal(pers protocol.Perspective) []byte {
if p.MaxDatagramFrameSize != protocol.InvalidByteCount {
b = p.marshalVarintParam(b, maxDatagramFrameSizeParameterID, uint64(p.MaxDatagramFrameSize))
}
if pers == protocol.PerspectiveClient && len(AdditionalTransportParametersClient) > 0 {
for k, v := range AdditionalTransportParametersClient {
b = quicvarint.Append(b, k)
b = quicvarint.Append(b, uint64(len(v)))
b = append(b, v...)
}
}
return b
}