goproxy/utils/ss/util.go
arraykeys@gmail.com ade587db6d add core
2018-09-04 17:56:38 +08:00

29 lines
682 B
Go

package ss
import (
"net"
"github.com/snail007/goproxy/utils"
)
const leakyBufSize = 4108 // data.len(2) + hmacsha1(10) + data(4096)
const maxNBuf = 2048
var leakyBuf = utils.NewLeakyBuf(maxNBuf, leakyBufSize)
const (
idType = 0 // address type index
idIP0 = 1 // ip addres start index
idDmLen = 1 // domain address length index
idDm0 = 2 // domain address start index
typeIPv4 = 1 // type is ipv4 address
typeDm = 3 // type is domain address
typeIPv6 = 4 // type is ipv6 address
lenIPv4 = net.IPv4len + 2 // ipv4 + 2port
lenIPv6 = net.IPv6len + 2 // ipv6 + 2port
lenDmBase = 2 // 1addrLen + 2port, plus addrLen
lenHmacSha1 = 10
)