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echo the offered version in IETF Version Negotiation Packets

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This commit is contained in:
Marten Seemann 2017-11-12 14:37:43 +08:00
parent bf1ee17e67
commit 234d5aab36
4 changed files with 13 additions and 5 deletions
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8
internal/wire/version_negotiation.go
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@ -26,13 +26,19 @@ func ComposeGQUICVersionNegotiation(connID protocol.ConnectionID, versions []pro
}
// ComposeVersionNegotiation composes a Version Negotiation according to the IETF draft
func ComposeVersionNegotiation(connID protocol.ConnectionID, pn protocol.PacketNumber, versions []protocol.VersionNumber) []byte {
func ComposeVersionNegotiation(
connID protocol.ConnectionID,
pn protocol.PacketNumber,
versionOffered protocol.VersionNumber,
versions []protocol.VersionNumber,
) []byte {
fullReply := &bytes.Buffer{}
ph := Header{
IsLongHeader: true,
Type: protocol.PacketTypeVersionNegotiation,
ConnectionID: connID,
PacketNumber: pn,
Version: versionOffered,
}
if err := ph.writeHeader(fullReply); err != nil {
utils.Errorf("error composing version negotiation packet: %s", err.Error())