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update session package

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This commit is contained in:
Jason
2019-08-16 14:15:01 +08:00
parent 9ab84243ac
commit 66cc09d454
14 changed files with 192 additions and 208 deletions
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2
Makefile
View File

@@ -3,7 +3,7 @@ BUILD_DIR=$(shell pwd)/build
CMD_DIR=$(shell pwd)/cmd
VERSION=$(shell git describe --tags --long || echo "unknown version")
BUILD_TIME=$(shell date -u)
BUILD_TAGS='fakeDNS stats'
BUILD_TAGS='fakedns session'
GOBUILD=go build -ldflags '-s -w -X "github.com/xjasonlyu/tun2socks/constant.Version=$(VERSION)"'
all: build

35
cmd/main.go
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@@ -12,25 +12,26 @@ import (
"syscall"
"time"
D "github.com/xjasonlyu/tun2socks/component/fakedns"
S "github.com/xjasonlyu/tun2socks/component/session"
C "github.com/xjasonlyu/tun2socks/constant"
"github.com/xjasonlyu/tun2socks/core"
"github.com/xjasonlyu/tun2socks/filter"
"github.com/xjasonlyu/tun2socks/log"
"github.com/xjasonlyu/tun2socks/proxy"
"github.com/xjasonlyu/tun2socks/tun"
D "github.com/xjasonlyu/tun2socks/component/fakedns"
S "github.com/xjasonlyu/tun2socks/component/stats"
)
const MTU = 1500
var (
args = new(CmdArgs)
postFlagsInitFn []func()
args = new(CmdArgs)
fakeDNS D.FakeDNS
sessionStater S.SessionStater
// Modules init func
registeredInitFn []func()
fakeDNS D.FakeDNS
monitor S.Monitor
)
type CmdArgs struct {
@@ -53,13 +54,13 @@ type CmdArgs struct {
FakeDNSAddr *string
FakeDNSHosts *string
// Stats
Stats *bool
StatsAddr *string
// Session Stats
EnableStats *bool
StatsAddr *string
}
func addPostFlagsInitFn(fn func()) {
postFlagsInitFn = append(postFlagsInitFn, fn)
func registerInitFn(fn func()) {
registeredInitFn = append(registeredInitFn, fn)
}
func init() {
@@ -109,7 +110,7 @@ func main() {
}
// Initialization modules
for _, fn := range postFlagsInitFn {
for _, fn := range registeredInitFn {
if fn != nil {
fn()
}
@@ -136,8 +137,8 @@ func main() {
lwipWriter = filter.NewICMPFilter(lwipWriter).(io.Writer)
// Register TCP and UDP handlers to handle accepted connections.
core.RegisterTCPConnHandler(proxy.NewTCPHandler(proxyHost, proxyPort, fakeDNS, sessionStater))
core.RegisterUDPConnHandler(proxy.NewUDPHandler(proxyHost, proxyPort, *args.UdpTimeout, fakeDNS, sessionStater))
core.RegisterTCPConnHandler(proxy.NewTCPHandler(proxyHost, proxyPort, fakeDNS, monitor))
core.RegisterUDPConnHandler(proxy.NewUDPHandler(proxyHost, proxyPort, *args.UdpTimeout, fakeDNS, monitor))
// Register an output callback to write packets output from lwip stack to tun
// device, output function should be set before input any packets.
@@ -164,7 +165,7 @@ func main() {
}
// Stop session stater
if sessionStater != nil {
sessionStater.Stop()
if monitor != nil {
monitor.Stop()
}
}

6
cmd/main_fakedns.go
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@@ -1,4 +1,4 @@
// +build fakeDNS
// +build fakedns
package main
@@ -15,7 +15,7 @@ func init() {
args.FakeIPRange = flag.String("fakeIPRange", "198.18.0.0/15", "Fake IP CIDR range for DNS")
args.FakeDNSHosts = flag.String("fakeDNSHosts", "", "DNS hosts mapping, e.g. 'example.com=1.1.1.1,example.net=2.2.2.2'")
addPostFlagsInitFn(func() {
registerInitFn(func() {
if *args.EnableFakeDNS {
var err error
fakeDNS, err = fakedns.NewServer(*args.FakeIPRange, *args.FakeDNSHosts)
@@ -28,7 +28,7 @@ func init() {
// Start fakeDNS server
if err := fakeDNS.Start(); err != nil {
log.Fatalf("Start fake DNS server failed: %v", err)
log.Fatalf("Start fake DNS failed: %v", err)
}
log.Infof("Fake DNS serving at %v", fakedns.ServeAddr)
} else {

32
cmd/main_session.go Normal file
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@@ -0,0 +1,32 @@
// +build session
package main
import (
"flag"
"github.com/xjasonlyu/tun2socks/component/session"
"github.com/xjasonlyu/tun2socks/log"
)
func init() {
args.EnableStats = flag.Bool("stats", false, "Enable session statistics monitor")
args.StatsAddr = flag.String("statsAddr", "localhost:6001", "Listen address of session monitor, open in your browser to view statistics")
registerInitFn(func() {
if *args.EnableStats {
monitor = session.NewServer()
// Set stats variables
session.ServeAddr = *args.StatsAddr
// Start session stater
if err := monitor.Start(); err != nil {
log.Fatalf("Start session monitor failed: %v", err)
}
log.Infof("Session monitor serving at %v", session.ServeAddr)
} else {
monitor = nil
}
})
}

32
cmd/main_stats.go
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@@ -1,32 +0,0 @@
// +build stats
package main
import (
"flag"
"github.com/xjasonlyu/tun2socks/component/stats/session"
"github.com/xjasonlyu/tun2socks/log"
)
func init() {
args.Stats = flag.Bool("stats", false, "Enable session statistics")
args.StatsAddr = flag.String("statsAddr", "localhost:6001", "Listen address of stats, open in your browser to view statistics")
addPostFlagsInitFn(func() {
if *args.Stats {
sessionStater = session.NewSimpleSessionStater()
// Set stats variables
session.ServeAddr = *args.StatsAddr
// Start session stater
if err := sessionStater.Start(); err != nil {
log.Fatalf("Start session stater failed: %v", err)
}
log.Infof("Session stater serving at %v", session.ServeAddr)
} else {
sessionStater = nil
}
})
}

34
component/stats/session/session.go → component/session/server.go
View File

@@ -19,38 +19,38 @@ const maxCompletedSessions = 100
var (
ServeAddr = "localhost:6001"
ServePath = "/stats/session/plain"
ServePath = "/session/plain"
)
type simpleSessionStater struct {
type Server struct {
server *http.Server
activeSessionMap sync.Map
completedSessionQueue *queue.Queue
}
func NewSimpleSessionStater() *simpleSessionStater {
return &simpleSessionStater{
func NewServer() *Server {
return &Server{
completedSessionQueue: queue.New(maxCompletedSessions),
}
}
func (s *simpleSessionStater) sessionStatsHandler(resp http.ResponseWriter, req *http.Request) {
func (s *Server) handler(resp http.ResponseWriter, req *http.Request) {
// Slice of active sessions
var activeSessions []*C.Session
var activeSessions []*Session
s.activeSessionMap.Range(func(key, value interface{}) bool {
activeSessions = append(activeSessions, value.(*C.Session))
activeSessions = append(activeSessions, value.(*Session))
return true
})
// Slice of completed sessions
var completedSessions []*C.Session
var completedSessions []*Session
for _, item := range s.completedSessionQueue.Copy() {
if sess, ok := item.(*C.Session); ok {
if sess, ok := item.(*Session); ok {
completedSessions = append(completedSessions, sess)
}
}
tablePrint := func(w io.Writer, sessions []*C.Session) {
tablePrint := func(w io.Writer, sessions []*Session) {
// Sort by session start time.
sort.Slice(sessions, func(i, j int) bool {
return sessions[i].SessionStart.Sub(sessions[j].SessionStart) < 0
@@ -97,7 +97,7 @@ table, th, td {
_ = w.Flush()
}
func (s *simpleSessionStater) Start() error {
func (s *Server) Start() error {
_, port, err := net.SplitHostPort(ServeAddr)
if port == "0" || port == "" || err != nil {
return errors.New("address format error")
@@ -117,7 +117,7 @@ func (s *simpleSessionStater) Start() error {
mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
http.Redirect(w, r, ServePath, 301)
})
mux.HandleFunc(ServePath, s.sessionStatsHandler)
mux.HandleFunc(ServePath, s.handler)
s.server = &http.Server{Addr: ServeAddr, Handler: mux}
go func() {
s.server.Serve(c)
@@ -126,22 +126,22 @@ func (s *simpleSessionStater) Start() error {
return nil
}
func (s *simpleSessionStater) Stop() error {
func (s *Server) Stop() error {
return s.server.Close()
}
func (s *simpleSessionStater) AddSession(key interface{}, session *C.Session) {
func (s *Server) AddSession(key interface{}, session *Session) {
s.activeSessionMap.Store(key, session)
}
func (s *simpleSessionStater) GetSession(key interface{}) *C.Session {
func (s *Server) GetSession(key interface{}) *Session {
if sess, ok := s.activeSessionMap.Load(key); ok {
return sess.(*C.Session)
return sess.(*Session)
}
return nil
}
func (s *simpleSessionStater) RemoveSession(key interface{}) {
func (s *Server) RemoveSession(key interface{}) {
if sess, ok := s.activeSessionMap.Load(key); ok {
// move to completed sessions
s.completedSessionQueue.Put(sess)

90
component/session/session.go Normal file
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@@ -0,0 +1,90 @@
package session
import (
"net"
"sync"
"sync/atomic"
"time"
)
type Monitor interface {
Start() error
Stop() error
// METHODS
AddSession(key interface{}, session *Session)
GetSession(key interface{}) *Session
RemoveSession(key interface{})
}
type Session struct {
Process string
Network string
DialerAddr string
ClientAddr string
TargetAddr string
UploadBytes int64
DownloadBytes int64
SessionStart time.Time
SessionClose time.Time
}
// Track SessionConn
type Conn struct {
*Session
net.Conn
once sync.Once
}
func (c *Conn) Read(b []byte) (n int, err error) {
n, err = c.Conn.Read(b)
if n > 0 {
atomic.AddInt64(&c.DownloadBytes, int64(n))
}
return
}
func (c *Conn) Write(b []byte) (n int, err error) {
n, err = c.Conn.Write(b)
if n > 0 {
atomic.AddInt64(&c.UploadBytes, int64(n))
}
return
}
func (c *Conn) Close() error {
c.once.Do(func() {
c.SessionClose = time.Now()
})
return c.Conn.Close()
}
// Track SessionPacketConn
type PacketConn struct {
*Session
net.PacketConn
once sync.Once
}
func (c *PacketConn) ReadFrom(b []byte) (n int, addr net.Addr, err error) {
n, addr, err = c.PacketConn.ReadFrom(b)
if n > 0 {
atomic.AddInt64(&c.DownloadBytes, int64(n))
}
return
}
func (c *PacketConn) WriteTo(b []byte, addr net.Addr) (n int, err error) {
n, err = c.PacketConn.WriteTo(b, addr)
if n > 0 {
atomic.AddInt64(&c.UploadBytes, int64(n))
}
return
}
func (c *PacketConn) Close() error {
c.once.Do(func() {
c.SessionClose = time.Now()
})
return c.PacketConn.Close()
}

0
component/stats/session/utils.go → component/session/utils.go
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13
component/stats/stats.go
View File

@@ -1,13 +0,0 @@
package stats
import (
C "github.com/xjasonlyu/tun2socks/constant"
)
type SessionStater interface {
Start() error
Stop() error
AddSession(key interface{}, session *C.Session)
GetSession(key interface{}) *C.Session
RemoveSession(key interface{})
}

94
constant/session.go
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@@ -1,94 +0,0 @@
package constant
import (
"net"
"sync"
"sync/atomic"
"time"
)
type Session struct {
Process string
Network string
DialerAddr string
ClientAddr string
TargetAddr string
UploadBytes int64
DownloadBytes int64
SessionStart time.Time
SessionClose time.Time
}
// Track SessionConn
type SessionConn struct {
net.Conn
once sync.Once
session *Session
}
func NewSessionConn(conn net.Conn, session *Session) net.Conn {
return &SessionConn{
Conn: conn,
session: session,
}
}
func (c *SessionConn) Read(b []byte) (n int, err error) {
n, err = c.Conn.Read(b)
if n > 0 {
atomic.AddInt64(&c.session.DownloadBytes, int64(n))
}
return
}
func (c *SessionConn) Write(b []byte) (n int, err error) {
n, err = c.Conn.Write(b)
if n > 0 {
atomic.AddInt64(&c.session.UploadBytes, int64(n))
}
return
}
func (c *SessionConn) Close() error {
c.once.Do(func() {
c.session.SessionClose = time.Now()
})
return c.Conn.Close()
}
// Track SessionPacketConn
type SessionPacketConn struct {
net.PacketConn
once sync.Once
session *Session
}
func NewSessionPacketConn(conn net.PacketConn, session *Session) net.PacketConn {
return &SessionPacketConn{
PacketConn: conn,
session: session,
}
}
func (c *SessionPacketConn) ReadFrom(b []byte) (n int, addr net.Addr, err error) {
n, addr, err = c.PacketConn.ReadFrom(b)
if n > 0 {
atomic.AddInt64(&c.session.DownloadBytes, int64(n))
}
return
}
func (c *SessionPacketConn) WriteTo(b []byte, addr net.Addr) (n int, err error) {
n, err = c.PacketConn.WriteTo(b, addr)
if n > 0 {
atomic.AddInt64(&c.session.UploadBytes, int64(n))
}
return
}
func (c *SessionPacketConn) Close() error {
c.once.Do(func() {
c.session.SessionClose = time.Now()
})
return c.PacketConn.Close()
}

28
proxy/tcp.go
View File

@@ -10,7 +10,7 @@ import (
"github.com/xjasonlyu/tun2socks/common/lsof"
"github.com/xjasonlyu/tun2socks/common/pool"
D "github.com/xjasonlyu/tun2socks/component/fakedns"
"github.com/xjasonlyu/tun2socks/component/stats"
S "github.com/xjasonlyu/tun2socks/component/session"
C "github.com/xjasonlyu/tun2socks/constant"
"github.com/xjasonlyu/tun2socks/core"
"github.com/xjasonlyu/tun2socks/log"
@@ -20,16 +20,16 @@ type tcpHandler struct {
proxyHost string
proxyPort int
fakeDNS D.FakeDNS
sessionStater stats.SessionStater
fakeDNS D.FakeDNS
monitor S.Monitor
}
func NewTCPHandler(proxyHost string, proxyPort int, fakeDNS D.FakeDNS, sessionStater stats.SessionStater) core.TCPConnHandler {
func NewTCPHandler(proxyHost string, proxyPort int, fakeDNS D.FakeDNS, monitor S.Monitor) core.TCPConnHandler {
return &tcpHandler{
proxyHost: proxyHost,
proxyPort: proxyPort,
fakeDNS: fakeDNS,
sessionStater: sessionStater,
proxyHost: proxyHost,
proxyPort: proxyPort,
fakeDNS: fakeDNS,
monitor: monitor,
}
}
@@ -77,8 +77,8 @@ func (h *tcpHandler) relay(localConn, remoteConn net.Conn) {
wg.Wait() // Wait for Up Link done
// Remove session
if h.sessionStater != nil {
h.sessionStater.RemoveSession(localConn)
if h.monitor != nil {
h.monitor.RemoveSession(localConn)
}
}
@@ -104,8 +104,8 @@ func (h *tcpHandler) Handle(conn net.Conn, target *net.TCPAddr) error {
// Get name of the process
var process = lsof.GetProcessName(localConn.LocalAddr())
if h.sessionStater != nil {
sess := &C.Session{
if h.monitor != nil {
session := &S.Session{
Process: process,
Network: localConn.LocalAddr().Network(),
DialerAddr: remoteConn.LocalAddr().String(),
@@ -115,9 +115,9 @@ func (h *tcpHandler) Handle(conn net.Conn, target *net.TCPAddr) error {
DownloadBytes: 0,
SessionStart: time.Now(),
}
h.sessionStater.AddSession(localConn, sess)
h.monitor.AddSession(localConn, session)
remoteConn = C.NewSessionConn(remoteConn, sess)
remoteConn = &S.Conn{Session: session, Conn: remoteConn}
}
// Set keepalive

30
proxy/udp.go
View File

@@ -10,7 +10,7 @@ import (
"github.com/xjasonlyu/tun2socks/common/lsof"
"github.com/xjasonlyu/tun2socks/common/pool"
D "github.com/xjasonlyu/tun2socks/component/fakedns"
"github.com/xjasonlyu/tun2socks/component/stats"
S "github.com/xjasonlyu/tun2socks/component/session"
C "github.com/xjasonlyu/tun2socks/constant"
"github.com/xjasonlyu/tun2socks/core"
"github.com/xjasonlyu/tun2socks/log"
@@ -24,17 +24,17 @@ type udpHandler struct {
remoteAddrMap sync.Map
remoteConnMap sync.Map
fakeDNS D.FakeDNS
sessionStater stats.SessionStater
fakeDNS D.FakeDNS
monitor S.Monitor
}
func NewUDPHandler(proxyHost string, proxyPort int, timeout time.Duration, fakeDNS D.FakeDNS, sessionStater stats.SessionStater) core.UDPConnHandler {
func NewUDPHandler(proxyHost string, proxyPort int, timeout time.Duration, fakeDNS D.FakeDNS, monitor S.Monitor) core.UDPConnHandler {
return &udpHandler{
proxyHost: proxyHost,
proxyPort: proxyPort,
fakeDNS: fakeDNS,
sessionStater: sessionStater,
timeout: timeout,
proxyHost: proxyHost,
proxyPort: proxyPort,
fakeDNS: fakeDNS,
monitor: monitor,
timeout: timeout,
}
}
@@ -82,8 +82,8 @@ func (h *udpHandler) Connect(conn core.UDPConn, target *net.UDPAddr) error {
// Get name of the process
var process = lsof.GetProcessName(conn.LocalAddr())
if h.sessionStater != nil {
sess := &C.Session{
if h.monitor != nil {
session := &S.Session{
Process: process,
Network: conn.LocalAddr().Network(),
DialerAddr: remoteConn.LocalAddr().String(),
@@ -93,9 +93,9 @@ func (h *udpHandler) Connect(conn core.UDPConn, target *net.UDPAddr) error {
DownloadBytes: 0,
SessionStart: time.Now(),
}
h.sessionStater.AddSession(conn, sess)
h.monitor.AddSession(conn, session)
remoteConn = C.NewSessionPacketConn(remoteConn, sess)
remoteConn = &S.PacketConn{Session: session, PacketConn: remoteConn}
}
h.remoteAddrMap.Store(conn, remoteAddr)
@@ -152,7 +152,7 @@ func (h *udpHandler) Close(conn core.UDPConn) {
conn.Close()
// Remove session
if h.sessionStater != nil {
h.sessionStater.RemoveSession(conn)
if h.monitor != nil {
h.monitor.RemoveSession(conn)
}
}

2
scripts/run_socks_linux.sh
View File

@@ -11,4 +11,4 @@ config_route() {
}
config_route &
sudo ./build/tun2socks -tunAddr 240.0.0.2 -tunGw 240.0.0.1 -proxyServer 192.168.1.1:1080 -fakeDNS -loglevel info -stats
sudo ./build/tun2socks -tunAddr 240.0.0.2 -tunGw 240.0.0.1 -proxyServer 192.168.1.1:1080 -fakeDNS

2
scripts/run_socks_macos.sh
View File

@@ -7,4 +7,4 @@ config_route() {
}
config_route &
sudo ./build/tun2socks -tunAddr 240.0.0.2 -tunGw 240.0.0.1 -proxyServer 192.168.1.1:1080 -fakeDNS -loglevel info -stats
sudo ./build/tun2socks -tunAddr 240.0.0.2 -tunGw 240.0.0.1 -proxyServer 192.168.1.1:1080 -fakeDNS