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qlog when packets are dropped due to unsupported QUIC version

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This commit is contained in:
Marten Seemann 2020-04-10 14:39:02 +07:00
parent 899e1694d7
commit f58eb47383
5 changed files with 24 additions and 7 deletions
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8
internal/wire/header.go
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@ -42,7 +42,7 @@ func IsVersionNegotiationPacket(b []byte) bool {
return b[0]&0x80 > 0 && b[1] == 0 && b[2] == 0 && b[3] == 0 && b[4] == 0
}
var errUnsupportedVersion = errors.New("unsupported version")
var ErrUnsupportedVersion = errors.New("unsupported version")
// The Header is the version independent part of the header
type Header struct {
@ -69,8 +69,8 @@ type Header struct {
func ParsePacket(data []byte, shortHeaderConnIDLen int) (*Header, []byte /* packet data */, []byte /* rest */, error) {
hdr, err := parseHeader(bytes.NewReader(data), shortHeaderConnIDLen)
if err != nil {
if err == errUnsupportedVersion {
return hdr, nil, nil, nil
if err == ErrUnsupportedVersion {
return hdr, nil, nil, ErrUnsupportedVersion
}
return nil, nil, nil, err
}
@ -160,7 +160,7 @@ func (h *Header) parseLongHeader(b *bytes.Reader) error {
}
// If we don't understand the version, we have no idea how to interpret the rest of the bytes
if !protocol.IsSupportedVersion(protocol.SupportedVersions, h.Version) {
return errUnsupportedVersion
return ErrUnsupportedVersion
}
switch (h.typeByte & 0x30) >> 4 {