mirror of
https://github.com/e1732a364fed/v2ray_simple.git
synced 2025-12-24 13:27:56 +08:00
98 lines
2.7 KiB
Go
98 lines
2.7 KiB
Go
package v2ray_simple
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import (
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"go.uber.org/zap"
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"net"
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"github.com/e1732a364fed/v2ray_simple/netLayer"
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"github.com/e1732a364fed/v2ray_simple/netLayer/tproxy"
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"github.com/e1732a364fed/v2ray_simple/proxy"
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"github.com/e1732a364fed/v2ray_simple/utils"
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)
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//非阻塞。监听透明代理
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func ListenTproxy(lc proxy.LesserConf, defaultOutClientForThis proxy.Client, routePolicy *netLayer.RoutePolicy) (tm *tproxy.Machine) {
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utils.Info("Start running Tproxy")
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ad, err := netLayer.NewAddr(lc.Addr)
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if err != nil {
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panic(err)
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}
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//因为 tproxy比较特殊, 不属于 proxy.Server, 所以 需要 独立的 转发过程去处理.
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lis, err := startLoopTCP(ad, lc, defaultOutClientForThis, &proxy.RoutingEnv{
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RoutePolicy: routePolicy,
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})
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if err != nil {
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if ce := utils.CanLogErr("TProxy startLoopTCP failed"); ce != nil {
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ce.Write(zap.Error(err))
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}
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return
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}
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udpConn := startLoopUDP(ad, lc, defaultOutClientForThis, &proxy.RoutingEnv{
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RoutePolicy: routePolicy,
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})
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tm = &tproxy.Machine{Addr: ad, Listener: lis, UDPConn: udpConn}
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return
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}
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//非阻塞
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func startLoopTCP(ad netLayer.Addr, lc proxy.LesserConf, defaultOutClientForThis proxy.Client, env *proxy.RoutingEnv) (net.Listener, error) {
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return netLayer.ListenAndAccept("tcp", ad.String(), &netLayer.Sockopt{TProxy: true}, 0, func(conn net.Conn) {
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tcpconn := conn.(*net.TCPConn)
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targetAddr := tproxy.HandshakeTCP(tcpconn)
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if ce := utils.CanLogInfo("TProxy loop read got new tcp"); ce != nil {
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ce.Write(zap.String("->", targetAddr.String()))
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}
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passToOutClient(incomingInserverConnState{
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inTag: lc.Tag,
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useSniffing: lc.UseSniffing,
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wrappedConn: tcpconn,
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defaultClient: defaultOutClientForThis,
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routingEnv: env,
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}, false, tcpconn, nil, targetAddr)
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})
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}
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//非阻塞
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func startLoopUDP(ad netLayer.Addr, lc proxy.LesserConf, defaultOutClientForThis proxy.Client, env *proxy.RoutingEnv) *net.UDPConn {
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ad.Network = "udp"
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conn, err := ad.ListenUDP_withOpt(&netLayer.Sockopt{TProxy: true})
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if err != nil {
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if ce := utils.CanLogErr("TProxy startLoopUDP DialWithOpt failed"); ce != nil {
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ce.Write(zap.Error(err))
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}
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return nil
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}
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udpConn := conn.(*net.UDPConn)
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go func() {
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for {
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msgConn, raddr, err := tproxy.HandshakeUDP(udpConn)
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if err != nil {
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if ce := utils.CanLogErr("TProxy startLoopUDP loop read failed"); ce != nil {
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ce.Write(zap.Error(err))
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}
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break
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} else {
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if ce := utils.CanLogInfo("TProxy loop read got new udp"); ce != nil {
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ce.Write(zap.String("->", raddr.String()))
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}
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}
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go passToOutClient(incomingInserverConnState{
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inTag: lc.Tag,
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useSniffing: lc.UseSniffing,
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defaultClient: defaultOutClientForThis,
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routingEnv: env,
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}, false, nil, msgConn, raddr)
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}
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}()
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return udpConn
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}
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