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Feature: add custom DNS support (#56)

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This commit is contained in:
Dreamacro
2018-12-05 21:13:29 +08:00
committed by GitHub
parent da5db36ccf
commit 03c249ecb1
23 changed files with 939 additions and 124 deletions
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68
adapters/inbound/util.go
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@ -10,32 +10,26 @@ import (
)
func parseSocksAddr(target socks.Addr) *C.Metadata {
var host, port string
var ip net.IP
metadata := &C.Metadata{
NetWork: C.TCP,
AddrType: int(target[0]),
}
switch target[0] {
case socks.AtypDomainName:
host = string(target[2 : 2+target[1]])
port = strconv.Itoa((int(target[2+target[1]]) << 8) | int(target[2+target[1]+1]))
ipAddr, err := net.ResolveIPAddr("ip", host)
if err == nil {
ip = ipAddr.IP
}
metadata.Host = string(target[2 : 2+target[1]])
metadata.Port = strconv.Itoa((int(target[2+target[1]]) << 8) | int(target[2+target[1]+1]))
case socks.AtypIPv4:
ip = net.IP(target[1 : 1+net.IPv4len])
port = strconv.Itoa((int(target[1+net.IPv4len]) << 8) | int(target[1+net.IPv4len+1]))
ip := net.IP(target[1 : 1+net.IPv4len])
metadata.IP = &ip
metadata.Port = strconv.Itoa((int(target[1+net.IPv4len]) << 8) | int(target[1+net.IPv4len+1]))
case socks.AtypIPv6:
ip = net.IP(target[1 : 1+net.IPv6len])
port = strconv.Itoa((int(target[1+net.IPv6len]) << 8) | int(target[1+net.IPv6len+1]))
ip := net.IP(target[1 : 1+net.IPv6len])
metadata.IP = &ip
metadata.Port = strconv.Itoa((int(target[1+net.IPv6len]) << 8) | int(target[1+net.IPv6len+1]))
}
return &C.Metadata{
NetWork: C.TCP,
AddrType: int(target[0]),
Host: host,
IP: &ip,
Port: port,
}
return metadata
}
func parseHTTPAddr(request *http.Request) *C.Metadata {
@ -44,28 +38,26 @@ func parseHTTPAddr(request *http.Request) *C.Metadata {
if port == "" {
port = "80"
}
ipAddr, err := net.ResolveIPAddr("ip", host)
var resolveIP *net.IP
if err == nil {
resolveIP = &ipAddr.IP
}
var addType int
ip := net.ParseIP(host)
switch {
case ip == nil:
addType = socks.AtypDomainName
case ip.To4() == nil:
addType = socks.AtypIPv6
default:
addType = socks.AtypIPv4
}
return &C.Metadata{
metadata := &C.Metadata{
NetWork: C.TCP,
AddrType: addType,
Source: C.HTTP,
AddrType: C.AtypDomainName,
Host: host,
IP: resolveIP,
IP: nil,
Port: port,
}
ip := net.ParseIP(host)
if ip != nil {
switch {
case ip.To4() == nil:
metadata.AddrType = C.AtypIPv6
default:
metadata.AddrType = C.AtypIPv4
}
metadata.IP = &ip
}
return metadata
}