Various Yggdrasil related refactoring and tcpip network stack

[nncp.git] / src / cmd / nncp-daemon / main.go

diff --git a/src/cmd/nncp-daemon/main.go b/src/cmd/nncp-daemon/main.go
index 252527f56a1520044d681419e1d7e10967768729..88f7e20fec9dfa1c5692dfb04235ccf1171f3ba4 100644 (file)
--- a/src/cmd/nncp-daemon/main.go
+++ b/src/cmd/nncp-daemon/main.go
@@ -30,6 +30,7 @@ import (
 
        "github.com/dustin/go-humanize"
        "go.cypherpunks.ru/nncp/v8"
+       nncpYggdrasil "go.cypherpunks.ru/nncp/v8/yggdrasil"
        "golang.org/x/net/netutil"
 )
 
@@ -111,6 +112,7 @@ func main() {
                bind      = flag.String("bind", "[::]:5400", "Address to bind to")
                ucspi     = flag.Bool("ucspi", false, "Is it started as UCSPI-TCP server")
                inetd     = flag.Bool("inetd", false, "Obsolete, use -ucspi")
+               yggdrasil = flag.String("yggdrasil", "", "Start Yggdrasil listener: yggdrasils://PRV[:PORT]?[bind=BIND][&pub=PUB][&peer=PEER][&mcast=REGEX[:PORT]]")
                maxConn   = flag.Int("maxconn", 128, "Maximal number of simultaneous connections")
                noCK      = flag.Bool("nock", false, "Do no checksum checking")
                mcdOnce   = flag.Bool("mcd-once", false, "Send MCDs once and quit")
@@ -200,38 +202,64 @@ func main() {
                return
        }
 
-       cols := strings.Split(*bind, ":")
-       port, err := strconv.Atoi(cols[len(cols)-1])
-       if err != nil {
-               log.Fatalln("Can not parse port:", err)
-       }
+       conns := make(chan net.Conn)
+       if *bind != "" {
+               cols := strings.Split(*bind, ":")
+               port, err := strconv.Atoi(cols[len(cols)-1])
+               if err != nil {
+                       log.Fatalln("Can not parse port:", err)
+               }
 
-       if *mcdOnce {
-               for ifiName := range ctx.MCDTxIfis {
-                       if err = ctx.MCDTx(ifiName, port, 0); err != nil {
-                               log.Fatalln("Can not do MCD transmission:", err)
+               if *mcdOnce {
+                       for ifiName := range ctx.MCDTxIfis {
+                               if err = ctx.MCDTx(ifiName, port, 0); err != nil {
+                                       log.Fatalln("Can not do MCD transmission:", err)
+                               }
                        }
+                       return
                }
-               return
-       }
 
-       ln, err := net.Listen("tcp", *bind)
-       if err != nil {
-               log.Fatalln("Can not listen:", err)
-       }
+               ln, err := net.Listen("tcp", *bind)
+               if err != nil {
+                       log.Fatalln("Can not listen:", err)
+               }
 
-       for ifiName, secs := range ctx.MCDTxIfis {
-               if err = ctx.MCDTx(ifiName, port, time.Duration(secs)*time.Second); err != nil {
-                       log.Fatalln("Can not run MCD transmission:", err)
+               for ifiName, secs := range ctx.MCDTxIfis {
+                       if err = ctx.MCDTx(ifiName, port, time.Duration(secs)*time.Second); err != nil {
+                               log.Fatalln("Can not run MCD transmission:", err)
+                       }
                }
+
+               ln = netutil.LimitListener(ln, *maxConn)
+               go func() {
+                       for {
+                               conn, err := ln.Accept()
+                               if err != nil {
+                                       log.Fatalln("Can not accept connection on TCP:", err)
+                               }
+                               conns <- conn
+                       }
+               }()
        }
 
-       ln = netutil.LimitListener(ln, *maxConn)
-       for {
-               conn, err := ln.Accept()
+       if *yggdrasil != "" {
+               ln, err := nncpYggdrasil.NewListener(ctx.YggdrasilAliases, *yggdrasil)
                if err != nil {
-                       log.Fatalln("Can not accept connection:", err)
+                       log.Fatalln("Can not listen:", err)
                }
+               ln = netutil.LimitListener(ln, *maxConn)
+               go func() {
+                       for {
+                               conn, err := ln.Accept()
+                               if err != nil {
+                                       log.Fatalln("Can not accept connection on Yggdrasil:", err)
+                               }
+                               conns <- conn
+                       }
+               }()
+       }
+
+       for conn := range conns {
                ctx.LogD(
                        "daemon-accepted",
                        nncp.LEs{{K: "Addr", V: conn.RemoteAddr()}},
@@ -264,5 +292,6 @@ func main() {
                        }
                        conn.Close()
                }(conn)
+
        }
 }