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use in place decryption for unpacking packets

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This commit is contained in:
Marten Seemann 2018-04-04 14:56:45 +07:00
parent 89e719f03b
commit 38efa84e9c
2 changed files with 2 additions and 9 deletions
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6
mint_utils.go
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@ -108,11 +108,7 @@ func tlsToMintConfig(tlsConf *tls.Config, pers protocol.Perspective) (*mint.Conf
// unpackInitialOrRetryPacket unpacks packets Initial and Retry packets // unpackInitialOrRetryPacket unpacks packets Initial and Retry packets
// These packets must contain a STREAM_FRAME for the crypto stream, starting at offset 0. // These packets must contain a STREAM_FRAME for the crypto stream, starting at offset 0.
func unpackInitialPacket(aead crypto.AEAD, hdr *wire.Header, data []byte, logger utils.Logger, version protocol.VersionNumber) (*wire.StreamFrame, error) { func unpackInitialPacket(aead crypto.AEAD, hdr *wire.Header, data []byte, logger utils.Logger, version protocol.VersionNumber) (*wire.StreamFrame, error) {
buf := *getPacketBuffer() decrypted, err := aead.Open(data[:0], data, hdr.PacketNumber, hdr.Raw)
buf = buf[:0]
defer putPacketBuffer(&buf)
decrypted, err := aead.Open(buf, data, hdr.PacketNumber, hdr.Raw)
if err != nil { if err != nil {
return nil, err return nil, err
} }

5
packet_unpacker.go
View file

@ -63,10 +63,7 @@ func newPacketUnpackerGQUIC(aead gQUICAEAD, version protocol.VersionNumber) unpa
} }
func (u *packetUnpackerGQUIC) Unpack(headerBinary []byte, hdr *wire.Header, data []byte) (*unpackedPacket, error) { func (u *packetUnpackerGQUIC) Unpack(headerBinary []byte, hdr *wire.Header, data []byte) (*unpackedPacket, error) {
buf := *getPacketBuffer() decrypted, encryptionLevel, err := u.aead.Open(data[:0], data, hdr.PacketNumber, headerBinary)
buf = buf[:0]
defer putPacketBuffer(&buf)
decrypted, encryptionLevel, err := u.aead.Open(buf, data, hdr.PacketNumber, headerBinary)
if err != nil { if err != nil {
// Wrap err in quicError so that public reset is sent by session // Wrap err in quicError so that public reset is sent by session
return nil, qerr.Error(qerr.DecryptionFailure, err.Error()) return nil, qerr.Error(qerr.DecryptionFailure, err.Error())