mirror of
https://github.com/SagerNet/sing-box.git
synced 2024-12-25 15:05:38 +08:00
89c723e3e4
Refactor Authenticator interface to struct & Update smux & Update gVisor to 20231204.0 & Update quic-go to v0.40.1 & Update wireguard-go & Add GSO support for TUN/WireGuard & Fix router pre-start & Fix bind forwarder to interface for systems stack
46 lines
1.1 KiB
Go
46 lines
1.1 KiB
Go
package trojan
|
|
|
|
import (
|
|
"encoding/binary"
|
|
|
|
"github.com/sagernet/sing/common/buf"
|
|
E "github.com/sagernet/sing/common/exceptions"
|
|
M "github.com/sagernet/sing/common/metadata"
|
|
N "github.com/sagernet/sing/common/network"
|
|
"github.com/sagernet/sing/common/rw"
|
|
)
|
|
|
|
var _ N.PacketReadWaiter = (*PacketConn)(nil)
|
|
|
|
func (c *PacketConn) InitializeReadWaiter(options N.ReadWaitOptions) (needCopy bool) {
|
|
c.readWaitOptions = options
|
|
return false
|
|
}
|
|
|
|
func (c *PacketConn) WaitReadPacket() (buffer *buf.Buffer, destination M.Socksaddr, err error) {
|
|
destination, err = M.SocksaddrSerializer.ReadAddrPort(c.Conn)
|
|
if err != nil {
|
|
return nil, M.Socksaddr{}, E.Cause(err, "read destination")
|
|
}
|
|
|
|
var length uint16
|
|
err = binary.Read(c.Conn, binary.BigEndian, &length)
|
|
if err != nil {
|
|
return nil, M.Socksaddr{}, E.Cause(err, "read chunk length")
|
|
}
|
|
|
|
err = rw.SkipN(c.Conn, 2)
|
|
if err != nil {
|
|
return nil, M.Socksaddr{}, E.Cause(err, "skip crlf")
|
|
}
|
|
|
|
buffer = c.readWaitOptions.NewPacketBuffer()
|
|
_, err = buffer.ReadFullFrom(c.Conn, int(length))
|
|
if err != nil {
|
|
buffer.Release()
|
|
return
|
|
}
|
|
c.readWaitOptions.PostReturn(buffer)
|
|
return
|
|
}
|