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testutils: add a perspective function parameter to ComposeInitialPacket (#4276)

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Currently not used, but this is useful when crafting Initial packets
sent from the client. No functional change expected.
This commit is contained in:
Marten Seemann 2024-01-29 12:30:23 +07:00 • committed by GitHub
parent 940feef063
commit 03ba124241
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GPG key ID: B5690EEEBB952194
3 changed files with 15 additions and 10 deletions
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15
internal/testutils/testutils.go
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@ -33,10 +33,15 @@ func packRawPayload(version protocol.VersionNumber, frames []wire.Frame) []byte
return b
}
// ComposeInitialPacket returns an Initial packet encrypted under key
// (the original destination connection ID) containing specified frames
func ComposeInitialPacket(srcConnID protocol.ConnectionID, destConnID protocol.ConnectionID, version protocol.VersionNumber, key protocol.ConnectionID, frames []wire.Frame) []byte {
sealer, _ := handshake.NewInitialAEAD(key, protocol.PerspectiveServer, version)
// ComposeInitialPacket returns an Initial packet encrypted under key (the original destination connection ID)
// containing specified frames.
func ComposeInitialPacket(
srcConnID, destConnID, key protocol.ConnectionID,
frames []wire.Frame,
sentBy protocol.Perspective,
version protocol.VersionNumber,
) []byte {
sealer, _ := handshake.NewInitialAEAD(key, sentBy, version)
// compose payload
var payload []byte
@ -48,7 +53,7 @@ func ComposeInitialPacket(srcConnID protocol.ConnectionID, destConnID protocol.C
// compose Initial header
payloadSize := len(payload)
pnLength := protocol.PacketNumberLen4
const pnLength = protocol.PacketNumberLen4
length := payloadSize + int(pnLength) + sealer.Overhead()
hdr := &wire.ExtendedHeader{
Header: wire.Header{