fix application bug

This commit is contained in:
Jeff
2019-05-13 11:19:18 +08:00
committed by zryfish
parent 996d6fe4c5
commit 5462f51e65
717 changed files with 87703 additions and 53426 deletions

View File

@@ -8,25 +8,14 @@ import (
"github.com/lucas-clemente/quic-go/internal/utils"
)
// ComposeGQUICVersionNegotiation composes a Version Negotiation Packet for gQUIC
func ComposeGQUICVersionNegotiation(connID protocol.ConnectionID, versions []protocol.VersionNumber) []byte {
buf := bytes.NewBuffer(make([]byte, 0, 1+8+len(versions)*4))
buf.Write([]byte{0x1 | 0x8}) // type byte
buf.Write(connID)
for _, v := range versions {
utils.BigEndian.WriteUint32(buf, uint32(v))
}
return buf.Bytes()
}
// ComposeVersionNegotiation composes a Version Negotiation according to the IETF draft
// ComposeVersionNegotiation composes a Version Negotiation
func ComposeVersionNegotiation(destConnID, srcConnID protocol.ConnectionID, versions []protocol.VersionNumber) ([]byte, error) {
greasedVersions := protocol.GetGreasedVersions(versions)
expectedLen := 1 /* type byte */ + 4 /* version field */ + 1 /* connection ID length field */ + destConnID.Len() + srcConnID.Len() + len(greasedVersions)*4
buf := bytes.NewBuffer(make([]byte, 0, expectedLen))
r := make([]byte, 1)
_, _ = rand.Read(r) // ignore the error here. It is not critical to have perfect random here.
buf.WriteByte(r[0] | 0x80)
buf.WriteByte(r[0] | 0xc0)
utils.BigEndian.WriteUint32(buf, 0) // version 0
connIDLen, err := encodeConnIDLen(destConnID, srcConnID)
if err != nil {