mirrors/Xray-core
1
0
Fork 0
mirror of https://github.com/XTLS/Xray-core.git synced 2024-11-22 23:13:01 +00:00
Code Issues Packages Projects Releases Wiki Activity

Fix: TFO AsIs bug (#452)

Browse Source
This commit is contained in:
risetechlab 2021-03-31 00:42:02 +08:00 committed by GitHub
parent a9e11075d1
commit b63049f404
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
7 changed files with 133 additions and 36 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
infra/conf/transport_internet.go
View File

@ -478,22 +478,19 @@ type SocketConfig struct {
// Build implements Buildable.
func (c *SocketConfig) Build() (*internet.SocketConfig, error) {
tfo := int32(-1)
tfo := int32(0) // don't invoke setsockopt() for TFO
if c.TFO != nil {
switch v := c.TFO.(type) {
case bool:
if v {
tfo = 256
} else {
tfo = 0
tfo = -1 // TFO need to be disabled
}
case float64:
if v < 0 {
return nil, newError("tcpFastOpen: only boolean and non-negative integer value is acceptable")
}
tfo = int32(math.Min(v, math.MaxInt32))
default:
return nil, newError("tcpFastOpen: only boolean and non-negative integer value is acceptable")
return nil, newError("tcpFastOpen: only boolean and integer value is acceptable")
}
}
var tproxy internet.SocketConfig_TProxyMode

115
infra/conf/transport_test.go
View File

@ -31,6 +31,13 @@ func TestSocketConfig(t *testing.T) {
}
}
// test "tcpFastOpen": true, queue length 256 is expected. other parameters are tested here too
expectedOutput := &internet.SocketConfig{
Mark: 1,
Tfo: 256,
DomainStrategy: internet.DomainStrategy_USE_IP,
DialerProxy: "tag",
}
runMultiTestCase(t, []TestCase{
{
Input: `{
@ -40,38 +47,118 @@ func TestSocketConfig(t *testing.T) {
"dialerProxy": "tag"
}`,
Parser: createParser(),
Output: &internet.SocketConfig{
Mark: 1,
Tfo: 256,
DomainStrategy: internet.DomainStrategy_USE_IP,
DialerProxy: "tag",
},
Output: expectedOutput,
},
})
if expectedOutput.ParseTFOValue() != 256 {
t.Fatalf("unexpected parsed TFO value, which should be 256")
}
// test "tcpFastOpen": false, disabled TFO is expected
expectedOutput = &internet.SocketConfig{
Mark: 0,
Tfo: -1,
}
runMultiTestCase(t, []TestCase{
{
Input: `{
"tcpFastOpen": false
}`,
Parser: createParser(),
Output: &internet.SocketConfig{
Mark: 0,
Tfo: 0,
},
Output: expectedOutput,
},
})
if expectedOutput.ParseTFOValue() != 0 {
t.Fatalf("unexpected parsed TFO value, which should be 0")
}
// test "tcpFastOpen": 65535, queue length 65535 is expected
expectedOutput = &internet.SocketConfig{
Mark: 0,
Tfo: 65535,
}
runMultiTestCase(t, []TestCase{
{
Input: `{
"tcpFastOpen": 65535
}`,
Parser: createParser(),
Output: &internet.SocketConfig{
Mark: 0,
Tfo: 65535,
},
Output: expectedOutput,
},
})
if expectedOutput.ParseTFOValue() != 65535 {
t.Fatalf("unexpected parsed TFO value, which should be 65535")
}
// test "tcpFastOpen": -65535, disable TFO is expected
expectedOutput = &internet.SocketConfig{
Mark: 0,
Tfo: -65535,
}
runMultiTestCase(t, []TestCase{
{
Input: `{
"tcpFastOpen": -65535
}`,
Parser: createParser(),
Output: expectedOutput,
},
})
if expectedOutput.ParseTFOValue() != 0 {
t.Fatalf("unexpected parsed TFO value, which should be 0")
}
// test "tcpFastOpen": 0, no operation is expected
expectedOutput = &internet.SocketConfig{
Mark: 0,
Tfo: 0,
}
runMultiTestCase(t, []TestCase{
{
Input: `{
"tcpFastOpen": 0
}`,
Parser: createParser(),
Output: expectedOutput,
},
})
if expectedOutput.ParseTFOValue() != -1 {
t.Fatalf("unexpected parsed TFO value, which should be -1")
}
// test omit "tcpFastOpen", no operation is expected
expectedOutput = &internet.SocketConfig{
Mark: 0,
Tfo: 0,
}
runMultiTestCase(t, []TestCase{
{
Input: `{}`,
Parser: createParser(),
Output: expectedOutput,
},
})
if expectedOutput.ParseTFOValue() != -1 {
t.Fatalf("unexpected parsed TFO value, which should be -1")
}
// test "tcpFastOpen": null, no operation is expected
expectedOutput = &internet.SocketConfig{
Mark: 0,
Tfo: 0,
}
runMultiTestCase(t, []TestCase{
{
Input: `{
"tcpFastOpen": null
}`,
Parser: createParser(),
Output: expectedOutput,
},
})
if expectedOutput.ParseTFOValue() != -1 {
t.Fatalf("unexpected parsed TFO value, which should be -1")
}
}
func TestTransportConfig(t *testing.T) {

11
transport/internet/sockopt.go
View File

@ -17,3 +17,14 @@ func isUDPSocket(network string) bool {
return false
}
}
func (v *SocketConfig) ParseTFOValue() int {
if v.Tfo == 0 {
return -1
}
tfo := int(v.Tfo)
if tfo < 0 {
tfo = 0
}
return tfo
}

8
transport/internet/sockopt_darwin.go
View File

@ -15,12 +15,12 @@ const (
func applyOutboundSocketOptions(network string, address string, fd uintptr, config *SocketConfig) error {
if isTCPSocket(network) {
tfo := config.Tfo
tfo := config.ParseTFOValue()
if tfo > 0 {
tfo = TCP_FASTOPEN_CLIENT
}
if tfo >= 0 {
if err := syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, TCP_FASTOPEN, int(tfo)); err != nil {
if err := syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, TCP_FASTOPEN, tfo); err != nil {
return err
}
}
@ -31,12 +31,12 @@ func applyOutboundSocketOptions(network string, address string, fd uintptr, conf
func applyInboundSocketOptions(network string, fd uintptr, config *SocketConfig) error {
if isTCPSocket(network) {
tfo := config.Tfo
tfo := config.ParseTFOValue()
if tfo > 0 {
tfo = TCP_FASTOPEN_SERVER
}
if tfo >= 0 {
if err := syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, TCP_FASTOPEN, int(tfo)); err != nil {
if err := syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, TCP_FASTOPEN, tfo); err != nil {
return err
}
}

9
transport/internet/sockopt_freebsd.go
View File

@ -130,7 +130,7 @@ func applyOutboundSocketOptions(network string, address string, fd uintptr, conf
}
if isTCPSocket(network) {
tfo := int(config.Tfo)
tfo := config.ParseTFOValue()
if tfo > 0 {
tfo = 1
}
@ -163,9 +163,10 @@ func applyInboundSocketOptions(network string, fd uintptr, config *SocketConfig)
}
}
if isTCPSocket(network) {
if config.Tfo >= 0 {
if err := syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, unix.TCP_FASTOPEN, int(config.Tfo)); err != nil {
return newError("failed to set TCP_FASTOPEN=", config.Tfo).Base(err)
tfo := config.ParseTFOValue()
if tfo >= 0 {
if err := syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, unix.TCP_FASTOPEN, tfo); err != nil {
return newError("failed to set TCP_FASTOPEN=", tfo).Base(err)
}
}
}

9
transport/internet/sockopt_linux.go
View File

@ -48,7 +48,7 @@ func applyOutboundSocketOptions(network string, address string, fd uintptr, conf
}
if isTCPSocket(network) {
tfo := int(config.Tfo)
tfo := config.ParseTFOValue()
if tfo > 0 {
tfo = 1
}
@ -75,9 +75,10 @@ func applyInboundSocketOptions(network string, fd uintptr, config *SocketConfig)
}
}
if isTCPSocket(network) {
if config.Tfo >= 0 {
if err := syscall.SetsockoptInt(int(fd), syscall.SOL_TCP, TCP_FASTOPEN, int(config.Tfo)); err != nil {
return newError("failed to set TCP_FASTOPEN=", config.Tfo).Base(err)
tfo := config.ParseTFOValue()
if tfo >= 0 {
if err := syscall.SetsockoptInt(int(fd), syscall.SOL_TCP, TCP_FASTOPEN, tfo); err != nil {
return newError("failed to set TCP_FASTOPEN=", tfo).Base(err)
}
}
}

8
transport/internet/sockopt_windows.go
View File

@ -8,12 +8,12 @@ const (
TCP_FASTOPEN = 15
)
func setTFO(fd syscall.Handle, tfo int32) error {
func setTFO(fd syscall.Handle, tfo int) error {
if tfo > 0 {
tfo = 1
}
if tfo >= 0 {
if err := syscall.SetsockoptInt(fd, syscall.IPPROTO_TCP, TCP_FASTOPEN, int(tfo)); err != nil {
if err := syscall.SetsockoptInt(fd, syscall.IPPROTO_TCP, TCP_FASTOPEN, tfo); err != nil {
return err
}
}
@ -22,7 +22,7 @@ func setTFO(fd syscall.Handle, tfo int32) error {
func applyOutboundSocketOptions(network string, address string, fd uintptr, config *SocketConfig) error {
if isTCPSocket(network) {
if err := setTFO(syscall.Handle(fd), config.Tfo); err != nil {
if err := setTFO(syscall.Handle(fd), config.ParseTFOValue()); err != nil {
return err
}
@ -33,7 +33,7 @@ func applyOutboundSocketOptions(network string, address string, fd uintptr, conf
func applyInboundSocketOptions(network string, fd uintptr, config *SocketConfig) error {
if isTCPSocket(network) {
if err := setTFO(syscall.Handle(fd), config.Tfo); err != nil {
if err := setTFO(syscall.Handle(fd), config.ParseTFOValue()); err != nil {
return err
}
}