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tproxy: fix ipv6 support (#290)

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This commit is contained in:
nadoo 2021-10-22 18:36:09 +08:00
parent e5031ac8d5
commit 807aebc678
4 changed files with 24 additions and 57 deletions
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8
go.mod
View File

@ -7,12 +7,12 @@ require (
github.com/dgryski/go-camellia v0.0.0-20191119043421-69a8a13fb23d github.com/dgryski/go-camellia v0.0.0-20191119043421-69a8a13fb23d
github.com/dgryski/go-idea v0.0.0-20170306091226-d2fb45a411fb github.com/dgryski/go-idea v0.0.0-20170306091226-d2fb45a411fb
github.com/dgryski/go-rc2 v0.0.0-20150621095337-8a9021637152 github.com/dgryski/go-rc2 v0.0.0-20150621095337-8a9021637152
github.com/insomniacslk/dhcp v0.0.0-20210827173440-b95caade3eac github.com/insomniacslk/dhcp v0.0.0-20211021111121-509557e9f781
github.com/nadoo/conflag v0.2.3 github.com/nadoo/conflag v0.2.3
github.com/nadoo/ipset v0.3.0 github.com/nadoo/ipset v0.3.0
github.com/xtaci/kcp-go/v5 v5.6.1 github.com/xtaci/kcp-go/v5 v5.6.1
golang.org/x/crypto v0.0.0-20210921155107-089bfa567519 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519
golang.org/x/sys v0.0.0-20210921065528-437939a70204 golang.org/x/sys v0.0.0-20211020174200-9d6173849985
) )
require ( require (
@ -22,11 +22,11 @@ require (
github.com/mdlayher/ethernet v0.0.0-20190606142754-0394541c37b7 // indirect github.com/mdlayher/ethernet v0.0.0-20190606142754-0394541c37b7 // indirect
github.com/mdlayher/raw v0.0.0-20210412142147-51b895745faf // indirect github.com/mdlayher/raw v0.0.0-20210412142147-51b895745faf // indirect
github.com/pkg/errors v0.9.1 // indirect github.com/pkg/errors v0.9.1 // indirect
github.com/templexxx/cpu v0.0.7 // indirect github.com/templexxx/cpu v0.0.8 // indirect
github.com/templexxx/xorsimd v0.4.1 // indirect github.com/templexxx/xorsimd v0.4.1 // indirect
github.com/tjfoc/gmsm v1.4.1 // indirect github.com/tjfoc/gmsm v1.4.1 // indirect
github.com/u-root/uio v0.0.0-20210528151154-e40b768296a7 // indirect github.com/u-root/uio v0.0.0-20210528151154-e40b768296a7 // indirect
golang.org/x/net v0.0.0-20210917221730-978cfadd31cf // indirect golang.org/x/net v0.0.0-20211020060615-d418f374d309 // indirect
) )
// Replace dependency modules with local developing copy // Replace dependency modules with local developing copy

15
go.sum
View File

@ -39,8 +39,8 @@ github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY= github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
github.com/hugelgupf/socketpair v0.0.0-20190730060125-05d35a94e714 h1:/jC7qQFrv8CrSJVmaolDVOxTfS9kc36uB6H40kdbQq8= github.com/hugelgupf/socketpair v0.0.0-20190730060125-05d35a94e714 h1:/jC7qQFrv8CrSJVmaolDVOxTfS9kc36uB6H40kdbQq8=
github.com/hugelgupf/socketpair v0.0.0-20190730060125-05d35a94e714/go.mod h1:2Goc3h8EklBH5mspfHFxBnEoURQCGzQQH1ga9Myjvis= github.com/hugelgupf/socketpair v0.0.0-20190730060125-05d35a94e714/go.mod h1:2Goc3h8EklBH5mspfHFxBnEoURQCGzQQH1ga9Myjvis=
github.com/insomniacslk/dhcp v0.0.0-20210827173440-b95caade3eac h1:IO6EfdRnPhxgKOsk9DbewdtQZHKZKnGlW7QCUttvNys= github.com/insomniacslk/dhcp v0.0.0-20211021111121-509557e9f781 h1:FleE8CPk4alhqVI48Z1/ARha5SdNJWS+ZwgBDHxc0U8=
github.com/insomniacslk/dhcp v0.0.0-20210827173440-b95caade3eac/go.mod h1:h+MxyHxRg9NH3terB1nfRIUaQEcI0XOVkdR9LNBlp8E= github.com/insomniacslk/dhcp v0.0.0-20211021111121-509557e9f781/go.mod h1:h+MxyHxRg9NH3terB1nfRIUaQEcI0XOVkdR9LNBlp8E=
github.com/jsimonetti/rtnetlink v0.0.0-20190606172950-9527aa82566a/go.mod h1:Oz+70psSo5OFh8DBl0Zv2ACw7Esh6pPUphlvZG9x7uw= github.com/jsimonetti/rtnetlink v0.0.0-20190606172950-9527aa82566a/go.mod h1:Oz+70psSo5OFh8DBl0Zv2ACw7Esh6pPUphlvZG9x7uw=
github.com/jsimonetti/rtnetlink v0.0.0-20200117123717-f846d4f6c1f4/go.mod h1:WGuG/smIU4J/54PblvSbh+xvCZmpJnFgr3ds6Z55XMQ= github.com/jsimonetti/rtnetlink v0.0.0-20200117123717-f846d4f6c1f4/go.mod h1:WGuG/smIU4J/54PblvSbh+xvCZmpJnFgr3ds6Z55XMQ=
github.com/jsimonetti/rtnetlink v0.0.0-20201009170750-9c6f07d100c1/go.mod h1:hqoO/u39cqLeBLebZ8fWdE96O7FxrAsRYhnVOdgHxok= github.com/jsimonetti/rtnetlink v0.0.0-20201009170750-9c6f07d100c1/go.mod h1:hqoO/u39cqLeBLebZ8fWdE96O7FxrAsRYhnVOdgHxok=
@ -81,8 +81,9 @@ github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+
github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0= github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/templexxx/cpu v0.0.1/go.mod h1:w7Tb+7qgcAlIyX4NhLuDKt78AHA5SzPmq0Wj6HiEnnk= github.com/templexxx/cpu v0.0.1/go.mod h1:w7Tb+7qgcAlIyX4NhLuDKt78AHA5SzPmq0Wj6HiEnnk=
github.com/templexxx/cpu v0.0.7 h1:pUEZn8JBy/w5yzdYWgx+0m0xL9uk6j4K91C5kOViAzo=
github.com/templexxx/cpu v0.0.7/go.mod h1:w7Tb+7qgcAlIyX4NhLuDKt78AHA5SzPmq0Wj6HiEnnk= github.com/templexxx/cpu v0.0.7/go.mod h1:w7Tb+7qgcAlIyX4NhLuDKt78AHA5SzPmq0Wj6HiEnnk=
github.com/templexxx/cpu v0.0.8 h1:va6GebSxedVdR5XEyPJD49t94p5ZsjWO6Wh/PfbmZnc=
github.com/templexxx/cpu v0.0.8/go.mod h1:w7Tb+7qgcAlIyX4NhLuDKt78AHA5SzPmq0Wj6HiEnnk=
github.com/templexxx/xorsimd v0.4.1 h1:iUZcywbOYDRAZUasAs2eSCUW8eobuZDy0I9FJiORkVg= github.com/templexxx/xorsimd v0.4.1 h1:iUZcywbOYDRAZUasAs2eSCUW8eobuZDy0I9FJiORkVg=
github.com/templexxx/xorsimd v0.4.1/go.mod h1:W+ffZz8jJMH2SXwuKu9WhygqBMbFnp14G2fqEr8qaNo= github.com/templexxx/xorsimd v0.4.1/go.mod h1:W+ffZz8jJMH2SXwuKu9WhygqBMbFnp14G2fqEr8qaNo=
github.com/tjfoc/gmsm v1.3.2/go.mod h1:HaUcFuY0auTiaHB9MHFGCPx5IaLhTUd2atbCFBQXn9w= github.com/tjfoc/gmsm v1.3.2/go.mod h1:HaUcFuY0auTiaHB9MHFGCPx5IaLhTUd2atbCFBQXn9w=
@ -129,8 +130,8 @@ golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81R
golang.org/x/net v0.0.0-20201010224723-4f7140c49acb/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU= golang.org/x/net v0.0.0-20201010224723-4f7140c49acb/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU= golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg= golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
golang.org/x/net v0.0.0-20210917221730-978cfadd31cf h1:R150MpwJIv1MpS0N/pc+NhTM8ajzvlmxlY5OYsrevXQ= golang.org/x/net v0.0.0-20211020060615-d418f374d309 h1:A0lJIi+hcTR6aajJH4YqKWwohY4aW9RO7oRMcdv+HKI=
golang.org/x/net v0.0.0-20210917221730-978cfadd31cf/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y= golang.org/x/net v0.0.0-20211020060615-d418f374d309/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U= golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@ -156,8 +157,8 @@ golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7w
golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210525143221-35b2ab0089ea/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.0.0-20210525143221-35b2ab0089ea/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20210921065528-437939a70204 h1:JJhkWtBuTQKyz2bd5WG9H8iUsJRU3En/KRfN8B2RnDs= golang.org/x/sys v0.0.0-20211020174200-9d6173849985 h1:LOlKVhfDyahgmqa97awczplwkjzNaELFg3zRIJ13RYo=
golang.org/x/sys v0.0.0-20210921065528-437939a70204/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.0.0-20211020174200-9d6173849985/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1 h1:v+OssWQX+hTHEmOBgwxdZxK4zHq3yOs8F9J7mk0PY8E= golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1 h1:v+OssWQX+hTHEmOBgwxdZxK4zHq3yOs8F9J7mk0PY8E=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo= golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=

2
proxy/tcp/tcp.go
View File

@ -25,7 +25,7 @@ func init() {
func NewTCP(s string, d proxy.Dialer, p proxy.Proxy) (*TCP, error) { func NewTCP(s string, d proxy.Dialer, p proxy.Proxy) (*TCP, error) {
u, err := url.Parse(s) u, err := url.Parse(s)
if err != nil { if err != nil {
log.F("[tls] parse url err: %s", err) log.F("[tcp] parse url err: %s", err)
return nil, err return nil, err
} }

56
proxy/tproxy/tproxy.go
View File

@ -1,29 +1,18 @@
package tproxy package tproxy
import ( import (
"bytes"
"encoding/binary" "encoding/binary"
"fmt" "fmt"
"net" "net"
"os" "os"
"strconv"
"syscall" "syscall"
"unsafe"
"golang.org/x/sys/unix" "golang.org/x/sys/unix"
) )
var nativeEndian binary.ByteOrder = binary.LittleEndian const IPV6_RECVORIGDSTADDR = 0x4a
func init() { // ref: https://github.com/LiamHaworth/go-tproxy/blob/master/tproxy_udp.go
var x uint16 = 0x0102
if *(*byte)(unsafe.Pointer(&x)) == 0x01 {
nativeEndian = binary.BigEndian
}
}
// The following code copies from:
// https://github.com/LiamHaworth/go-tproxy/blob/master/tproxy_udp.go
// MIT License by @LiamHaworth // MIT License by @LiamHaworth
// ListenUDP acts like net.ListenUDP but returns an conn with IP_TRANSPARENT option. // ListenUDP acts like net.ListenUDP but returns an conn with IP_TRANSPARENT option.
@ -70,43 +59,20 @@ func ReadFromUDP(conn *net.UDPConn, b []byte) (int, *net.UDPAddr, *net.UDPAddr,
return 0, nil, nil, fmt.Errorf("parsing socket control message: %s", err) return 0, nil, nil, fmt.Errorf("parsing socket control message: %s", err)
} }
var originalDst *net.UDPAddr
for _, msg := range msgs { for _, msg := range msgs {
if msg.Header.Level == syscall.SOL_IP && msg.Header.Type == syscall.IP_RECVORIGDSTADDR { if msg.Header.Level == syscall.SOL_IP && msg.Header.Type == syscall.IP_RECVORIGDSTADDR {
originalDstRaw := &syscall.RawSockaddrInet4{} ip := net.IP(msg.Data[4:8])
if err = binary.Read(bytes.NewReader(msg.Data), nativeEndian, originalDstRaw); err != nil { port := binary.BigEndian.Uint16(msg.Data[2:4])
return 0, nil, nil, fmt.Errorf("reading original destination address: %s", err) return n, addr, &net.UDPAddr{IP: ip, Port: int(port)}, nil
} }
if msg.Header.Level == syscall.SOL_IPV6 && msg.Header.Type == IPV6_RECVORIGDSTADDR {
switch originalDstRaw.Family { ip := net.IP(msg.Data[8:24])
case syscall.AF_INET: port := binary.BigEndian.Uint16(msg.Data[2:4])
pp := (*syscall.RawSockaddrInet4)(unsafe.Pointer(originalDstRaw)) return n, addr, &net.UDPAddr{IP: ip, Port: int(port)}, nil
p := (*[2]byte)(unsafe.Pointer(&pp.Port))
originalDst = &net.UDPAddr{
IP: net.IPv4(pp.Addr[0], pp.Addr[1], pp.Addr[2], pp.Addr[3]),
Port: int(p[0])<<8 + int(p[1]),
}
case syscall.AF_INET6:
pp := (*syscall.RawSockaddrInet6)(unsafe.Pointer(originalDstRaw))
p := (*[2]byte)(unsafe.Pointer(&pp.Port))
originalDst = &net.UDPAddr{
IP: net.IP(pp.Addr[:]),
Port: int(p[0])<<8 + int(p[1]),
Zone: strconv.Itoa(int(pp.Scope_id)),
}
default:
return 0, nil, nil, fmt.Errorf("original destination is an unsupported network family")
}
} }
} }
if originalDst == nil { return 0, nil, nil, fmt.Errorf("unable to obtain original destination: %s", err)
return 0, nil, nil, fmt.Errorf("unable to obtain original destination: %s", err)
}
return n, addr, originalDst, nil
} }
// ListenPacket acts like net.ListenPacket but the addr could be non-local. // ListenPacket acts like net.ListenPacket but the addr could be non-local.