Merge branch 'develop'

diff --git a/doc/cmd/nncp-daemon.texi b/doc/cmd/nncp-daemon.texi
index 73b44b034ce55da3b5d67973ba07f0b90eb0442c..15e1233aa0b5752bb7f12a647f9360b00daf0c24 100644 (file)
--- a/doc/cmd/nncp-daemon.texi
+++ b/doc/cmd/nncp-daemon.texi
@@ -5,7 +5,7 @@
 $ nncp-daemon [options]
     [-maxconn INT] [-bind ADDR] [-ucspi]
     [-autotoss*] [-nock] [-mcd-once]
-    [-yggdrasil PRV;BIND[,...];[PUB,...];[PEER,...]]
+    [-yggdrasil yggdrasils://PRV[:PORT]?[bind=BIND][&pub=PUB][&peer=PEER][&mcast=REGEX[:PORT]]]
 @end example
 
 Start listening TCP daemon, wait for incoming connections and run
@@ -15,7 +15,7 @@ time to time.
 
 @option{-maxconn} option specifies how many simultaneous clients daemon
 can handle. @option{-bind} option specifies @option{addr:port} it must
-bind to and listen.
+bind to and listen (empty string means no listening on TCP port).
 
 It could be run as @url{http://cr.yp.to/ucspi-tcp.html, UCSPI-TCP}
 service, by specifying @option{-ucspi} option. Pay attention that
@@ -43,5 +43,5 @@ Read @ref{CfgNoCK, more} about @option{-nock} option.
 @option{-mcd-once} option sends @ref{MCD} announcements once and quits.
 Could be useful with inetd-based setup, where daemons are not running.
 
-With @option{-yggdrasil} option daemon acts as a @ref{Yggdrasil}
+With @option{-yggdrasil} option daemon also acts as a @ref{Yggdrasil}
 listener daemon.

diff --git a/doc/download.texi b/doc/download.texi
index 962168e381a7cfeae0895a36d6f1ff2a3c7fa431..006c752de502aef3dc11d7e1f79ba17b94ef2479 100644 (file)
--- a/doc/download.texi
+++ b/doc/download.texi
@@ -31,19 +31,26 @@ And additional ones for Yggdrasil support:
 
 @multitable @columnfractions .50 .50
 @headitem Library @tab Licence
-@item @code{github.com/anacrolix/missinggo} @tab MIT
-@item @code{github.com/anacrolix/sync} @tab Unfortunately, no licence information, probably it can be a problem
 @item @code{github.com/Arceliar/ironwood} @tab MPLv2
 @item @code{github.com/Arceliar/phony} @tab MPLv2
 @item @code{github.com/gologme/log} @tab BSD 3-Clause
+@item @code{github.com/google/btree} @tab Apache 2.0
 @item @code{github.com/huandu/xstrings} @tab MIT
-@item @code{github.com/neilalexander/utp} @tab MPLv2
 @item @code{github.com/yggdrasil-network/yggdrasil-go} @tab GNU LGPLv3
+@item @code{golang.org/x/term} @tab BSD 3-Clause
+@item @code{gvisor.dev/gvisor} @tab Apache 2.0
 @end multitable
 
 @multitable {XXXXX} {XXXX-XX-XX} {XXXX KiB} {meta4 link sig} {xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx}
 @headitem Version @tab Date @tab Size @tab Tarball @tab SHA256 checksum
 
+@item @ref{Release 8_1_0, 8.1.0} @tab 2022-01-16 @tab 1339 KiB
+@tab
+    @url{download/nncp-8.1.0.tar.xz.meta4, meta4}
+    @url{download/nncp-8.1.0.tar.xz, link}
+    @url{download/nncp-8.1.0.tar.xz.sig, sig}
+@tab @code{777536DF 775E76D6 6B05645D 6F440494 D39DFCBD 7E52DE02 5AF919A3 94CF53EC}
+
 @item @ref{Release 8_0_2, 8.0.2} @tab 2021-11-10 @tab 1204 KiB
 @tab
     @url{download/nncp-8.0.2.tar.xz.meta4, meta4}

diff --git a/doc/news.ru.texi b/doc/news.ru.texi
index 8c26f41eb3a218ad9324c2a031d8ec472a0a42a2..cf291803434411e0a118901234c78c4137ffc0ec 100644 (file)
--- a/doc/news.ru.texi
+++ b/doc/news.ru.texi
@@ -1,6 +1,32 @@
 @node Новости
 @section Новости
 
+@node Релиз 8.2.0
+@subsection Релиз 8.2.0
+@itemize
+
+@item
+Yggdrasil использует IPv6+TCP сетевой стэк написанный полностью на Go,
+вместо голого μTP транспортного протокола, делая возможным работу в
+качестве обычного TCP сервера внутри overlay сети.
+
+@item
+Конфигурационные строки Yggdrasil вида @code{prv;bind1,bind2;pub...}
+заменены на URL-подобные (@code{yggdrasils://PRV?bind=BIND1&bind=BIND2&pub=PUB}).
+
+@item
+Возможно передавать параметры Yggdrasil конфигурации связанные с multicast.
+
+@item
+@command{nncp-daemon} может слушать одновременно и на TCP и на
+Yggdrasil-управляемом сокетах.
+
+@item
+Слушание на endpoint сокете для пиринга в @command{nncp-daemon}
+опционально -- вы можете быть доступны и через связь с peer-ами.
+
+@end itemize
+
 @node Релиз 8.1.0
 @subsection Релиз 8.1.0
 @itemize

diff --git a/doc/news.texi b/doc/news.texi
index 4dee6bedfc01208ac42b4a227a62f6213863bb7d..7fd4b6549368d8406a1336faaf6c6c7fb6c2f8e3 100644 (file)
--- a/doc/news.texi
+++ b/doc/news.texi
@@ -3,6 +3,32 @@
 
 See also this page @ref{Новости, on russian}.
 
+@node Release 8_2_0
+@section Release 8.2.0
+@itemize
+
+@item
+Yggdrasil uses pure-Go IPv6+TCP network stack, instead of naked μTP
+transport protocol, making it able to work as an ordinary TCP server
+inside overlay network.
+
+@item
+Yggdrasil's @code{prv;bind1,bind2;pub...}-like configuration strings are
+replaced with URL-like ones (@code{yggdrasils://PRV?bind=BIND1&bind=BIND2&pub=PUB}).
+
+@item
+Ability to pass multicast-related parameters to Yggdrasil configuration.
+
+@item
+@command{nncp-daemon} is able to listen on both TCP and Yggdrasil-driven
+sockets simultaneously.
+
+@item
+@command{nncp-daemon}'s listening on peering endpoint socket is optional
+-- you can be reached through the peers.
+
+@end itemize
+
 @node Release 8_1_0
 @section Release 8.1.0
 @itemize
@@ -30,8 +56,8 @@ Fixed sending ability to areas.
 @itemize
 
 @item
-Fixed incorrect @code{freq.chunked} value calculation. If it missed,
-then anyway chunked transfer mode was forcefully turned on.
+Fixed incorrect @code{freq.chunked} value calculation. If it was missed,
+then chunked transfer mode was forcefully turned on anyway.
 
 @item
 Fixed incorrect full file's size calculation in @file{.nncp.meta}.

diff --git a/doc/yggdrasil.texi b/doc/yggdrasil.texi
index 3d1c73f9dc288e2f386a6813bffcfa3207d08a21..18fa2701278638832bde6f4ef32cb3b43a6d2874 100644 (file)
--- a/doc/yggdrasil.texi
+++ b/doc/yggdrasil.texi
@@ -1,48 +1,43 @@
 @node Yggdrasil
 @unnumbered Yggdrasil support
 
-NNCP is able to act itself as a client to
+NNCP is able to act as a node of
 @url{https://yggdrasil-network.github.io/, Yggdrasil} overlay network.
 Current IPv6 adoption for @strong{home} users is relatively bad in many
 countries. That is why Yggdrasil overlay network uses dynamic spanning
 tree mesh network for packets routing, making it useful for gaining
-hosts high availability reachability without complex manual manipulations.
-By default it creates 200::/7 IPv6 network, where each host's address is
-derived from the corresponding public key.
-
-NNCP's Yggdrasil support is fully based on and resembles the idea taken
-from @url{https://github.com/neilalexander/yggmail, yggmail} software,
-that does not use Yggdrasil's full-featured IP tunnelling capabilities,
-but rather uses it only as a generic packet transmission network,
-greatly simplifying the whole setup, without necessity to setup separate
-networking interface and operating system's routing tables with firewall.
-@url{http://bittorrent.org/beps/bep_0029.html, μTP} transport protocol
-is used over Yggdrasil's packet interface -- it is relatively simple and
-efficient enough.
-
-No separate explicit Yggdrasil daemon installation is necessary, however
-you should be able to interoperate with it too, using for example as an
-entry point to the global Yggdrasil network. You can reuse already
-existing Yggdrasil network, without colliding with its IP tunnelling
-features.
+hosts high reachability without complex manual manipulations. By default
+it creates 200::/7 IPv6 network, where each host's address is derived
+from its public key.
+
+NNCP reuses Yggdrasil's source code, but instead of relying on operating
+system's network stack, that would require use of some kind
+full-featured TUN network interface, there is pure Go built-in stack,
+responsible for IPv6 and TCP protocols support. You do not need to think
+about network interfaces, addressing and firewall setup at all:
+@ref{nncp-daemon} acts as Yggdrasil IPv6 reachable host, listening on
+single TCP port. You can reach it using ordinary non-Yggdrasil capable
+version of @ref{nncp-call}, calling corresponding 200::/7 IPv6 address
+through native Yggdrasil daemon created TUN interface.
+@ref{nncp-daemon}, @ref{nncp-call}* can freely peer with Yggdrasil
+nodes, reusing existing infrastructure.
 
 Only minor modifications were done to current NNCP's tools:
 
 @itemize
 
-@item @ref{nncp-daemon} has @option{-yggdrasil} option, making it acting
-as a Yggdrasil listener network node. It can automatically connect to
-other peers and participate in routing. It does not have to answer
-NNCP's online protocol requests at all and just can be some intermediate
-routing point in the whole mesh network.
+@item @ref{nncp-daemon} has @option{-yggdrasil yggdrasils://} option,
+making it also as a Yggdrasil listener network node. It can
+automatically connect to other peers and participate in routing. It does
+not have to answer NNCP's online protocol requests at all and just can
+be some intermediate routing point in the whole mesh network.
 
 @item @ref{nncp-call}/@ref{nncp-caller} commands understand
-@code{yggdrasil:} addresses, pointing to the desired Yggdrasil's public
-key (that also acts as the destination host's address). Yggdrasil
+@code{yggdrasilc://} addresses, pointing to the desired Yggdrasil's
+public key (that also acts as the destination host's address). Yggdrasil
 background goroutine is automatically started, connecting to the
-specified Yggdrasil entrypoints and making μTP connection with the hosts
-and initiating NNCP's native @ref{Sync, online protocol} handshake on
-top of that.
+specified Yggdrasil entrypoints, calling remote NNCP node and initiating
+NNCP's native @ref{Sync, online protocol} handshake on top of that.
 
 @item @ref{nncp-cfgnew} is able to generate ed25519 keypair.
 
@@ -65,58 +60,133 @@ Public: 4fd64130e23cf7abdbc0fabdf2ae12bbc2ab7179861efa296d2beb0181ae07ea
 Private: 571fb05c81e62a572096566fd48e87ad47e706b1f600dd625ebbf86d310332624fd64130e23cf7abdbc0fabdf2ae12bbc2ab7179861efa296d2beb0181ae07ea
 @end example
 
-You should share your public key with other NNCP peers.
+You should share that public key with other NNCP peers.
 
 @item
 Start @ref{nncp-daemon} listening on Yggdrasil's incoming connections.
-You have to specify the private key (generated above), list of bind
-addresses for incoming Yggdrasil's TCP connections, optional list of
-allowed incoming connections, identified by a public key, and optionally
-a list of another similar listening peers, through which you can route
-and discover packets to the other nodes. @option{-yggdrasil} option
-takes that information in form of:
-@code{PRV;BIND[,...];[PUB,...];[PEER,...]}, where @code{PEER} is in
-Yggdrasil's URL format, like @code{tcp://HOST:PORT} or
-@code{tcp://HOST:PORT?key=PUBKEY}.
+You have to specify:
+
+@itemize
+
+@item
+Your private key (generated above). Yggdrasil's @code{PrivateKey} analogue.
+
+@item
+Optional non-default port you will listen on Yggdrasil's IPv6 address.
+
+@item
+Optional list of bind addresses, used for peering between the nodes.
+Yggdrasil's @code{Listen} analogue.
+
+@item
+Optional list of peer addresses you should connect to.
+Yggdrasil's @code{Peers} analogue.
+
+@item
+Optional list of allowed peer public keys, allowed for incoming peering
+connections from. Yggdrasil's @code{AllowedPublicKeys} analogue.
+
+@item
+Optional list of multicast-related regular expressions to match desired
+network interfaces where Yggdrasil multicasting must be enabled. Beacon
+and listening are always enabled on them, but optionally you can specify
+port you forcefully want to listen on.
+
+@end itemize
 
 @example
-$ nncp-daemon -yggdrasil "571f...07ea;[::]:1234,[::1]:2345;;tcp://some.peer?key=ITSPUBKEY"
+$ nncp-daemon -yggdrasil "yggdrasils://571f...07ea:6789"\
+"?bind=tcp://[::1]:1234"\
+"&bind=tcp://[2001::1]:1234"\
+"&pub=c6b7...9469"\
+"&pub=eb2d...ca07"\
+"&peer=tcp://example.com:2345"\
+"&peer=tcp://another.peer:3456%3Fkey=f879...2e9b"
+"&mcast=.*:5400"
+"&mcast=lo0"
 @end example
 
-Here we did not specify any allowable public key -- anyone can connect
-to us and route packets through. As you can see, private key is in
-command line arguments, that could be treated as a security issue. That
-is why it is preferred to specify them in
-@ref{CfgYggdrasilAliases, configuration}'s @code{yggdrasil-aliases}
+That @code{yggdrasils://} is transformed to following Yggdrasil's
+configuration analogue:
+
+@verbatim
+{
+  PrivateKey: 571f...07ea
+  Listen: ["tcp://[::1]:1234", "tcp://[2001::1]:1234"]
+  AllowedPublicKeys: ["c6b7...9469", "eb2d...ca07"]
+  Peers: [
+    tcp://some.peer.be:2345
+    tcp://some.peer.ru:3456?key=f879...2e9b
+  ]
+  MulticastInterfaces: [
+    {
+        Regex: .*
+        Beacon: true
+        Listen: true
+        Port: 5400
+    }, {
+        Regex: lo0
+        Beacon: true
+        Listen: true
+        Port: 0
+    }
+  ]
+}
+@end verbatim
+
+Basically you have to specify only private key and either @code{bind} or
+@code{peer} address. Look for Yggdrasil's documentation for more
+description of each option and related behaviour.
+
+As you can see, private key is in command line arguments, that could be
+treated as a security issue. That is why it is preferred to specify them
+in @ref{CfgYggdrasilAliases, configuration}'s @code{yggdrasil-aliases}
 section, where you can alias all of entities and reference them in
-@option{-yggdrasil} or @code{yggdrasil:}-addresses:
+@option{-yggdrasil} or @code{yggdrasilc://}-addresses:
 
 @verbatim
 yggdrasil-aliases: {
   myprv: 571f...07ea
-  bindPublic: [::]:1234
-  bindLocalhost: [::1]:2345
-  peerBE: tcp://some.peer.be?key=BEPUBKEY
-  peerRU: tcp://some.peer.ru?key=RUPUBKEY
-  defPeers: peerBE,peerRU
+  bindPublic: tcp://[2001::1]:1234
+  bindLocalhost: tcp://[::1]:2345
+  peerBE: tcp://some.peer.be:2345
+  peerRU: tcp://some.peer.ru:3456?key=f879...2e9b
+  somePeerPub1: c6b7...9469
+  somePeerPub2: eb2d...ca07
   remoteAlicePub: 52be...3c14
+  mcastAll: .*:5400
 }
 @end verbatim
 
 And now you can more conveniently and safely specify:
 
 @example
-$ nncp-daemon -yggdrasil "myprv;bindPublic,bindLocalhost;;defPeers"
+$ nncp-daemon -yggdrasil "yggdrasils://myprv:6789"\
+"?bind=bindPublic&bind=bindLocalhost"\
+"&peer=peerBE&peer=peerRU"\
+"&pub=somePeerPub1&pub=somePeerPub2"\
+"&mcast=mcastAll&mcast=lo0"
 @end example
 
 @item
 Make calls to that node from another ones, by using
-@code{yggdrasil:}-address, that takes remote host's public key, our
-host's private key and list of Yggdrasil peers entrypoints. Similarly to
-@option{-yggdrasil} option, it is ";"-separated list too:
+@code{yggdrasilc://}-address, similarly:
+
+@example
+yggdrasilc://PUB[:PORT]?prv=PRV[&peer=PEER][&mcast=REGEX[:PORT]]
+@end example
+
+where @code{PUB} is remote node's public key.
 
 @example
-$ nncp-call alice "yggdrasil:remoteAlicePub;myprv;bindLocalhost,tcp://some.other.entrypoint"
+$ nncp-call alice "yggdrasilc://remoteAlicePub?prv=myprv&mcast=mcastAll"
 @end example
 
 @end enumerate
+
+Per private key Yggdrasil core goroutine is started when first call is
+initiated and stays until program is finished. You can have multiple
+Yggdrasil-related private keys and multiple (Yggdrasil) cores will work
+simultaneously. But running multiple cores for one private key with
+varying configuration (except for destination public key of course) is
+not supported.

diff --git a/src/call.go b/src/call.go
index de1ce4f6796e12f1490cef36455c69dbc1f03426..c4e04cbd9d2a1a47a1e5c5f27a62410b159d0a0c 100644 (file)
--- a/src/call.go
+++ b/src/call.go
@@ -27,10 +27,9 @@ import (
 
        "github.com/dustin/go-humanize"
        "github.com/gorhill/cronexpr"
+       nncpYggdrasil "go.cypherpunks.ru/nncp/v8/yggdrasil"
 )
 
-const YggdrasilPrefix = "yggdrasil:"
-
 type Call struct {
        Cron           *cronexpr.Expression
        Nice           uint8
@@ -86,11 +85,8 @@ func (ctx *Ctx) CallNode(
                        if addr == "" {
                                addr = UCSPITCPClient
                        }
-               } else if strings.HasPrefix(addr, YggdrasilPrefix) {
-                       conn, err = NewYggdrasilConn(
-                               ctx.YggdrasilAliases,
-                               strings.TrimPrefix(addr, YggdrasilPrefix),
-                       )
+               } else if strings.HasPrefix(addr, "yggdrasilc://") {
+                       conn, err = nncpYggdrasil.NewConn(ctx.YggdrasilAliases, addr)
                } else {
                        conn, err = net.Dial("tcp", addr)
                }

diff --git a/src/cmd/nncp-daemon/main.go b/src/cmd/nncp-daemon/main.go
index b3687e8e05a668859ee1825a737f7911da024df3..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"
 )
 
@@ -111,7 +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: PRV;BIND[,...];[PUB,...];[PEER,...]")
+               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")
@@ -201,13 +202,8 @@ func main() {
                return
        }
 
-       var ln net.Listener
-       if *yggdrasil != "" {
-               ln, err = nncp.NewYggdrasilListener(ctx.YggdrasilAliases, *yggdrasil)
-               if err != nil {
-                       log.Fatalln("Can not listen:", err)
-               }
-       } else {
+       conns := make(chan net.Conn)
+       if *bind != "" {
                cols := strings.Split(*bind, ":")
                port, err := strconv.Atoi(cols[len(cols)-1])
                if err != nil {
@@ -223,7 +219,7 @@ func main() {
                        return
                }
 
-               ln, err = net.Listen("tcp", *bind)
+               ln, err := net.Listen("tcp", *bind)
                if err != nil {
                        log.Fatalln("Can not listen:", err)
                }
@@ -233,14 +229,37 @@ func main() {
                                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()}},
@@ -273,5 +292,6 @@ func main() {
                        }
                        conn.Close()
                }(conn)
+
        }
 }

diff --git a/src/go.mod b/src/go.mod
index b3ce4301f6217ba7e8ca1fb13d0dd085bc4ca135..da11ba0ecff218ae7a7ef0e1d1352a9ba70c5e44 100644 (file)
--- a/src/go.mod
+++ b/src/go.mod
@@ -2,9 +2,6 @@ module go.cypherpunks.ru/nncp/v8
 
 require (
        github.com/Arceliar/ironwood v0.0.0-20211125050254-8951369625d0
-       github.com/anacrolix/missinggo v1.3.0 // indirect
-       github.com/anacrolix/missinggo/v2 v2.5.3 // indirect
-       github.com/anacrolix/sync v0.4.0 // indirect
        github.com/davecgh/go-xdr v0.0.0-20161123171359-e6a2ba005892
        github.com/dustin/go-humanize v1.0.0
        github.com/flynn/noise v1.0.0
@@ -13,7 +10,6 @@ require (
        github.com/gorhill/cronexpr v0.0.0-20180427100037-88b0669f7d75
        github.com/hjson/hjson-go v3.1.0+incompatible
        github.com/klauspost/compress v1.13.6
-       github.com/neilalexander/utp v0.1.1-0.20210705212447-691f29ad692b
        github.com/yggdrasil-network/yggdrasil-go v0.4.2
        go.cypherpunks.ru/balloon v1.1.1
        go.cypherpunks.ru/recfile v0.4.3
@@ -21,6 +17,7 @@ require (
        golang.org/x/net v0.0.0-20210614182718-04defd469f4e
        golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e
        golang.org/x/term v0.0.0-20210927222741-03fcf44c2211
+       gvisor.dev/gvisor v0.0.0-20210306005637-a64c3a1b5a9f
        lukechampine.com/blake3 v1.1.6
 )
 

diff --git a/src/go.sum b/src/go.sum
index e5ce68abb54903e0541e9220c51c259789629f2a..6c9e706a6b3602e1d46365aeaf743ed83fab15d1 100644 (file)
--- a/src/go.sum
+++ b/src/go.sum
@@ -1,75 +1,117 @@
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diff --git a/src/nncp.go b/src/nncp.go
index 8362371ccf46fef16039d2ef1ad76ef7ee1c3038..3d9213f99cddc0a1f5fb5bdd2a61a4fe5daf89cd 100644 (file)
--- a/src/nncp.go
+++ b/src/nncp.go
@@ -40,7 +40,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.`
 const Base32Encoded32Len = 52
 
 var (
-       Version string = "8.1.0"
+       Version string = "8.2.0"
 
        Base32Codec *base32.Encoding = base32.StdEncoding.WithPadding(base32.NoPadding)
 )

diff --git a/src/yggdrasil.go b/src/yggdrasil.go
deleted file mode 100644 (file)
index 10de2f9..0000000
--- a/src/yggdrasil.go
+++ /dev/null
@@ -1,152 +0,0 @@
-//go:build !noyggdrasil
-// +build !noyggdrasil
-
-/*
-NNCP -- Node to Node copy, utilities for store-and-forward data exchange
-Copyright (C) 2016-2022 Sergey Matveev <stargrave@stargrave.org>
-
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, version 3 of the License.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-package nncp
-
-import (
-       "encoding/hex"
-       "errors"
-       "log"
-       "net"
-       "strings"
-
-       iwt "github.com/Arceliar/ironwood/types"
-       gologme "github.com/gologme/log"
-       "github.com/neilalexander/utp"
-       ycfg "github.com/yggdrasil-network/yggdrasil-go/src/config"
-       ycore "github.com/yggdrasil-network/yggdrasil-go/src/core"
-       "golang.org/x/crypto/ed25519"
-)
-
-var glog *gologme.Logger
-
-func init() {
-       glog = gologme.New(log.Writer(), "yggdrasil: ", gologme.Lmsgprefix)
-       glog.EnableLevel("warn")
-       glog.EnableLevel("error")
-       glog.EnableLevel("info")
-}
-
-func NewYggdrasilConn(aliases map[string]string, in string) (ConnDeadlined, error) {
-       // pub;prv;peer[, ...]
-       cols := strings.Split(in, ";")
-       if len(cols) < 3 {
-               return nil, errors.New("invalid yggdrasil: address format")
-       }
-       pubHex, prvHex, peersRaw := cols[0], cols[1], cols[2]
-       if v, ok := aliases[pubHex]; ok {
-               pubHex = v
-       }
-       if v, ok := aliases[prvHex]; ok {
-               prvHex = v
-       }
-       if v, ok := aliases[peersRaw]; ok {
-               peersRaw = v
-       }
-       peers := strings.Split(peersRaw, ",")
-       for i, peer := range peers {
-               if v, ok := aliases[peer]; ok {
-                       peers[i] = v
-               }
-       }
-       addrRaw, err := hex.DecodeString(pubHex)
-       if err != nil {
-               return nil, err
-       }
-       cfg := ycfg.NodeConfig{
-               PrivateKey:      prvHex,
-               Peers:           peers,
-               NodeInfo:        map[string]interface{}{"name": "NNCP " + Version},
-               NodeInfoPrivacy: true,
-       }
-       core := &ycore.Core{}
-       if err := core.Start(&cfg, glog); err != nil {
-               return nil, err
-       }
-       utpSock, err := utp.NewSocketFromPacketConnNoClose(core)
-       if err != nil {
-               return nil, err
-       }
-       addr := make(iwt.Addr, ed25519.PublicKeySize)
-       copy(addr, addrRaw)
-       return utpSock.DialAddr(addr)
-}
-
-func NewYggdrasilListener(aliases map[string]string, in string) (net.Listener, error) {
-       // prv;bind[, ...];[pub, ...];[peer, ...]
-       cols := strings.Split(in, ";")
-       if len(cols) < 4 {
-               return nil, errors.New("invalid -yggdrasil address format")
-       }
-       prvHex, bindsRaw, pubsRaw, peersRaw := cols[0], cols[1], cols[2], cols[3]
-       if v, ok := aliases[prvHex]; ok {
-               prvHex = v
-       }
-       if v, ok := aliases[bindsRaw]; ok {
-               bindsRaw = v
-       }
-       binds := strings.Split(bindsRaw, ",")
-       for i, bind := range binds {
-               if v, ok := aliases[bind]; ok {
-                       binds[i] = v
-               }
-       }
-       if v, ok := aliases[pubsRaw]; ok {
-               pubsRaw = v
-       }
-       pubs := strings.Split(pubsRaw, ",")
-       if len(pubs) == 1 && pubs[0] == "" {
-               pubs = nil
-       }
-       for i, pub := range pubs {
-               if v, ok := aliases[pub]; ok {
-                       pubs[i] = v
-               }
-       }
-       if v, ok := aliases[peersRaw]; ok {
-               peersRaw = v
-       }
-       peers := strings.Split(peersRaw, ",")
-       if len(peers) == 1 && peers[0] == "" {
-               peers = nil
-       }
-       for i, peer := range peers {
-               if v, ok := aliases[peer]; ok {
-                       peers[i] = v
-               }
-       }
-       cfg := ycfg.NodeConfig{
-               PrivateKey:        prvHex,
-               Listen:            binds,
-               AllowedPublicKeys: pubs,
-               Peers:             peers,
-               NodeInfo:          map[string]interface{}{"name": "NNCP " + Version},
-               NodeInfoPrivacy:   true,
-       }
-       core := &ycore.Core{}
-       if err := core.Start(&cfg, glog); err != nil {
-               return nil, err
-       }
-       utpSock, err := utp.NewSocketFromPacketConnNoClose(core)
-       if err != nil {
-               return nil, err
-       }
-       return utpSock, nil
-}

diff --git a/src/yggdrasil/tcpip.go b/src/yggdrasil/tcpip.go
new file mode 100644 (file)
index 0000000..ed3ddb8
--- /dev/null
+++ b/src/yggdrasil/tcpip.go
@@ -0,0 +1,198 @@
+//go:build !noyggdrasil
+// +build !noyggdrasil
+
+/*
+NNCP -- Node to Node copy, utilities for store-and-forward data exchange
+Copyright (C) 2016-2022 Sergey Matveev <stargrave@stargrave.org>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, version 3 of the License.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Code below is heavily based on Wireguard's MIT licenced
+golang.zx2c4.com/wireguard/tun/netstack.
+*/
+
+package yggdrasil
+
+import (
+       "fmt"
+       "log"
+       "net"
+
+       iwt "github.com/Arceliar/ironwood/types"
+       yaddr "github.com/yggdrasil-network/yggdrasil-go/src/address"
+       "golang.org/x/crypto/ed25519"
+       "gvisor.dev/gvisor/pkg/tcpip"
+       "gvisor.dev/gvisor/pkg/tcpip/adapters/gonet"
+       "gvisor.dev/gvisor/pkg/tcpip/buffer"
+       "gvisor.dev/gvisor/pkg/tcpip/header"
+       "gvisor.dev/gvisor/pkg/tcpip/network/ipv6"
+       "gvisor.dev/gvisor/pkg/tcpip/stack"
+       "gvisor.dev/gvisor/pkg/tcpip/transport/tcp"
+)
+
+const IPv6HdrSize = 40
+
+type TCPIPEndpoint struct {
+       mtu      uint32
+       s        *stack.Stack
+       pc       net.PacketConn
+       d        stack.NetworkDispatcher
+       readBuf  []byte
+       writeBuf []byte
+       ip       yaddr.Address
+       ipToAddr map[yaddr.Address]net.Addr
+       pubToIP  map[[ed25519.PublicKeySize]byte]yaddr.Address
+}
+
+func (e *TCPIPEndpoint) Attach(dispatcher stack.NetworkDispatcher) { e.d = dispatcher }
+
+func (e *TCPIPEndpoint) IsAttached() bool { return e.d != nil }
+
+func (e *TCPIPEndpoint) MTU() uint32 { return e.mtu }
+
+func (*TCPIPEndpoint) Capabilities() stack.LinkEndpointCapabilities { return stack.CapabilityNone }
+
+func (*TCPIPEndpoint) MaxHeaderLength() uint16 { return 0 }
+
+func (*TCPIPEndpoint) LinkAddress() tcpip.LinkAddress { return "" }
+
+func (*TCPIPEndpoint) Wait() {}
+
+func (e *TCPIPEndpoint) WritePacket(
+       _ stack.RouteInfo,
+       _ *stack.GSO,
+       _ tcpip.NetworkProtocolNumber,
+       pkt *stack.PacketBuffer,
+) tcpip.Error {
+       vv := buffer.NewVectorisedView(pkt.Size(), pkt.Views())
+       n, err := vv.Read(e.writeBuf)
+       if err != nil {
+               log.Println(err)
+               return &tcpip.ErrAborted{}
+       }
+       copy(e.ip[:], e.writeBuf[IPv6HdrSize-len(e.ip):IPv6HdrSize])
+       addr, ok := e.ipToAddr[e.ip]
+       if !ok {
+               log.Println("no address found:", e.ip)
+               return nil
+       }
+       _, err = e.pc.WriteTo(e.writeBuf[:n], addr)
+       if err != nil {
+               log.Println(err)
+               return &tcpip.ErrAborted{}
+       }
+       return nil
+}
+
+func (e *TCPIPEndpoint) WritePackets(
+       stack.RouteInfo,
+       *stack.GSO,
+       stack.PacketBufferList,
+       tcpip.NetworkProtocolNumber,
+) (int, tcpip.Error) {
+       panic("not implemented")
+}
+
+func (*TCPIPEndpoint) ARPHardwareType() header.ARPHardwareType { return header.ARPHardwareNone }
+
+func (e *TCPIPEndpoint) AddHeader(
+       tcpip.LinkAddress,
+       tcpip.LinkAddress,
+       tcpip.NetworkProtocolNumber,
+       *stack.PacketBuffer,
+) {
+}
+
+func convertToFullAddr(ip net.IP, port int) (tcpip.FullAddress, tcpip.NetworkProtocolNumber) {
+       return tcpip.FullAddress{
+               NIC:  1,
+               Addr: tcpip.Address(ip),
+               Port: uint16(port),
+       }, ipv6.ProtocolNumber
+}
+
+func (e *TCPIPEndpoint) DialTCP(addr *net.TCPAddr) (*gonet.TCPConn, error) {
+       if addr == nil {
+               panic("not implemented")
+       }
+       fa, pn := convertToFullAddr(addr.IP, addr.Port)
+       return gonet.DialTCP(e.s, fa, pn)
+}
+
+func (e *TCPIPEndpoint) ListenTCP(addr *net.TCPAddr) (*gonet.TCPListener, error) {
+       if addr == nil {
+               panic("not implemented")
+       }
+       fa, pn := convertToFullAddr(addr.IP, addr.Port)
+       return gonet.ListenTCP(e.s, fa, pn)
+}
+
+func (e *TCPIPEndpoint) Close() error {
+       e.s.RemoveNIC(1)
+       return nil
+}
+
+func NewTCPIPEndpoint(
+       pc net.PacketConn,
+       ipOur net.IP,
+       mtu uint32,
+) (*TCPIPEndpoint, error) {
+       s := stack.New(stack.Options{
+               NetworkProtocols:   []stack.NetworkProtocolFactory{ipv6.NewProtocol},
+               TransportProtocols: []stack.TransportProtocolFactory{tcp.NewProtocol},
+               HandleLocal:        true,
+       })
+       e := TCPIPEndpoint{
+               mtu:      mtu,
+               s:        s,
+               pc:       pc,
+               readBuf:  make([]byte, 1<<16),
+               writeBuf: make([]byte, 1<<16),
+               ipToAddr: make(map[yaddr.Address]net.Addr),
+               pubToIP:  make(map[[ed25519.PublicKeySize]byte]yaddr.Address),
+       }
+       if err := s.CreateNIC(1, &e); err != nil {
+               return nil, fmt.Errorf("%+v", err)
+       }
+       if err := s.AddAddress(1, ipv6.ProtocolNumber, tcpip.Address(ipOur)); err != nil {
+               return nil, fmt.Errorf("%+v", err)
+       }
+       s.AddRoute(tcpip.Route{Destination: header.IPv6EmptySubnet, NIC: 1})
+       go func() {
+               var n int
+               var from net.Addr
+               var err error
+               var pub [ed25519.PublicKeySize]byte
+               for {
+                       n, from, err = pc.ReadFrom(e.readBuf)
+                       if err != nil {
+                               log.Println(err)
+                               break
+                       }
+                       copy(pub[:], from.(iwt.Addr))
+                       ip, ok := e.pubToIP[pub]
+                       if !ok {
+                               copy(ip[:], yaddr.AddrForKey(ed25519.PublicKey(pub[:]))[:])
+                               e.pubToIP[pub] = ip
+                               e.ipToAddr[ip] = from
+                       }
+                       pkb := stack.NewPacketBuffer(stack.PacketBufferOptions{
+                               Data: buffer.NewVectorisedView(n, []buffer.View{
+                                       buffer.NewViewFromBytes(e.readBuf[:n]),
+                               }),
+                       })
+                       e.d.DeliverNetworkPacket("", "", ipv6.ProtocolNumber, pkb)
+               }
+       }()
+       return &e, nil
+}

diff --git a/src/yggdrasil/yggdrasil.go b/src/yggdrasil/yggdrasil.go
new file mode 100644 (file)
index 0000000..4901361
--- /dev/null
+++ b/src/yggdrasil/yggdrasil.go
@@ -0,0 +1,323 @@
+//go:build !noyggdrasil
+// +build !noyggdrasil
+
+/*
+NNCP -- Node to Node copy, utilities for store-and-forward data exchange
+Copyright (C) 2016-2022 Sergey Matveev <stargrave@stargrave.org>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, version 3 of the License.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package yggdrasil
+
+import (
+       "encoding/hex"
+       "errors"
+       "log"
+       "net"
+       "net/url"
+       "strconv"
+       "strings"
+       "sync"
+
+       iwt "github.com/Arceliar/ironwood/types"
+       gologme "github.com/gologme/log"
+       yaddr "github.com/yggdrasil-network/yggdrasil-go/src/address"
+       ycfg "github.com/yggdrasil-network/yggdrasil-go/src/config"
+       ycore "github.com/yggdrasil-network/yggdrasil-go/src/core"
+       ymcast "github.com/yggdrasil-network/yggdrasil-go/src/multicast"
+       "golang.org/x/crypto/ed25519"
+)
+
+const DefaultPort = 5400
+
+// Copy-pasted from yggdrasil-go/src/ipv6rwc/ipv6rwc.go,
+// because they are non-exportable.
+const (
+       typeKeyDummy = iota
+       typeKeyLookup
+       typeKeyResponse
+)
+
+var (
+       glog *gologme.Logger
+
+       stacks  map[string]*TCPIPEndpoint
+       stacksM sync.Mutex
+)
+
+func init() {
+       glog = gologme.New(log.Writer(), "yggdrasil: ", gologme.Lmsgprefix)
+       glog.EnableLevel("warn")
+       glog.EnableLevel("error")
+       glog.EnableLevel("info")
+       stacks = make(map[string]*TCPIPEndpoint)
+}
+
+func ycoreStart(cfg *ycfg.NodeConfig, port int, mcasts []string) (*ycore.Core, error) {
+       var err error
+       for _, mcast := range mcasts {
+               cols := strings.SplitN(mcast, ":", 2)
+               mport := 0
+               if len(cols) == 2 {
+                       mcast = cols[0]
+                       mport, err = strconv.Atoi(cols[1])
+                       if err != nil {
+                               return nil, err
+                       }
+               }
+               cfg.MulticastInterfaces = append(
+                       cfg.MulticastInterfaces, ycfg.MulticastInterfaceConfig{
+                               Regex:  mcast,
+                               Beacon: true,
+                               Listen: true,
+                               Port:   uint16(mport),
+                       },
+               )
+       }
+       core := &ycore.Core{}
+       if err := core.Start(cfg, glog); err != nil {
+               return nil, err
+       }
+       if len(mcasts) > 0 {
+               mc := &ymcast.Multicast{}
+               if err := mc.Init(core, cfg, glog, nil); err != nil {
+                       core.Stop()
+                       return nil, err
+               }
+               if err := mc.Start(); err != nil {
+                       core.Stop()
+                       return nil, err
+               }
+       }
+       glog.Infoln("Public key:", hex.EncodeToString(core.GetSelf().Key))
+       glog.Infof("NNCP TCP: [%s]:%d", core.Address().String(), port)
+       glog.Infoln("MTU:", core.MTU())
+       return core, nil
+}
+
+func NewConn(aliases map[string]string, in string) (net.Conn, error) {
+       // yggdrasilc://PUB[:PORT]?prv=PRV[&peer=PEER][&mcast=REGEX[:PORT]]
+       u, err := url.Parse(in)
+       if err != nil {
+               return nil, err
+       }
+       if u.Scheme != "yggdrasilc" {
+               return nil, errors.New("expected yggdrasilc:// scheme")
+       }
+
+       pubHex := u.Hostname()
+       if v, ok := aliases[pubHex]; ok {
+               pubHex = v
+       }
+       pubRaw, err := hex.DecodeString(pubHex)
+       if err != nil {
+               return nil, err
+       }
+
+       port := DefaultPort
+       if p := u.Port(); p != "" {
+               port, err = strconv.Atoi(p)
+               if err != nil {
+                       return nil, err
+               }
+       }
+
+       values := u.Query()
+       if len(values["prv"]) == 0 {
+               return nil, errors.New("yggdrasilc:// misses prv field")
+       }
+       prvHex := values["prv"][0]
+       if v, ok := aliases[prvHex]; ok {
+               prvHex = v
+       }
+       prvRaw, err := hex.DecodeString(prvHex)
+       if err != nil {
+               return nil, err
+       }
+       if len(prvRaw) != ed25519.PrivateKeySize {
+               return nil, errors.New("invalid private key size")
+       }
+       var peers []string
+       for _, peer := range values["peer"] {
+               if v, ok := aliases[peer]; ok {
+                       peer = v
+               }
+               peers = append(peers, peer)
+       }
+       var mcasts []string
+       for _, mcast := range values["mcast"] {
+               if v, ok := aliases[mcast]; ok {
+                       mcast = v
+               }
+               mcasts = append(mcasts, mcast)
+       }
+
+       addrOur := yaddr.AddrForKey(ed25519.PublicKey(
+               prvRaw[len(prvRaw)-ed25519.PublicKeySize:],
+       ))
+       ipOur := net.IP(addrOur[:])
+       addrTheir := yaddr.AddrForKey(ed25519.PublicKey(pubRaw))
+       ipTheir := net.IP(addrTheir[:])
+       var ip yaddr.Address
+       copy(ip[:], addrTheir[:])
+
+       stacksM.Lock()
+       defer stacksM.Unlock()
+       e, ok := stacks[prvHex]
+       if ok {
+               e.ipToAddr[ip] = iwt.Addr(pubRaw)
+               return e.DialTCP(&net.TCPAddr{IP: ipTheir, Port: port})
+       }
+       cfg := ycfg.NodeConfig{
+               PrivateKey:      prvHex,
+               Peers:           peers,
+               NodeInfo:        map[string]interface{}{"name": "NNCP"},
+               NodeInfoPrivacy: true,
+       }
+       core, err := ycoreStart(&cfg, port, mcasts)
+       if err != nil {
+               return nil, err
+       }
+       e, err = NewTCPIPEndpoint(core, ipOur, uint32(core.MTU()))
+       if err != nil {
+               return nil, err
+       }
+       e.ipToAddr[ip] = iwt.Addr(pubRaw)
+       stacks[prvHex] = e
+       return e.DialTCP(&net.TCPAddr{IP: ipTheir, Port: port})
+}
+
+type OOBState struct {
+       c      *ycore.Core
+       subnet yaddr.Subnet
+}
+
+func (state *OOBState) Handler(fromKey, toKey ed25519.PublicKey, data []byte) {
+       if len(data) != 1+ed25519.SignatureSize {
+               return
+       }
+       if data[0] == typeKeyLookup {
+               snet := *yaddr.SubnetForKey(toKey)
+               sig := data[1:]
+               if snet == state.subnet && ed25519.Verify(fromKey, toKey[:], sig) {
+                       state.c.SendOutOfBand(fromKey, append(
+                               []byte{typeKeyResponse},
+                               ed25519.Sign(state.c.PrivateKey(), fromKey[:])...,
+                       ))
+               }
+       }
+}
+
+func NewListener(aliases map[string]string, in string) (net.Listener, error) {
+       // yggdrasils://PRV[:PORT]?[bind=BIND][&pub=PUB][&peer=PEER][&mcast=REGEX[:PORT]]
+       u, err := url.Parse(in)
+       if err != nil {
+               return nil, err
+       }
+       if u.Scheme != "yggdrasils" {
+               return nil, errors.New("expected yggdrasils:// scheme")
+       }
+
+       prvHex := u.Hostname()
+       if v, ok := aliases[prvHex]; ok {
+               prvHex = v
+       }
+       prvRaw, err := hex.DecodeString(prvHex)
+       if err != nil {
+               return nil, err
+       }
+       if len(prvRaw) != ed25519.PrivateKeySize {
+               return nil, errors.New("invalid private key size")
+       }
+
+       port := DefaultPort
+       if p := u.Port(); p != "" {
+               port, err = strconv.Atoi(p)
+               if err != nil {
+                       return nil, err
+               }
+       }
+
+       values := u.Query()
+       var binds []string
+       for _, bind := range values["bind"] {
+               if v, ok := aliases[bind]; ok {
+                       bind = v
+               }
+               binds = append(binds, bind)
+       }
+       var pubs []string
+       for _, pub := range values["pub"] {
+               if v, ok := aliases[pub]; ok {
+                       pub = v
+               }
+               pubs = append(pubs, pub)
+       }
+       var peers []string
+       for _, peer := range values["peer"] {
+               if v, ok := aliases[peer]; ok {
+                       peer = v
+               }
+               peers = append(peers, peer)
+       }
+       var mcasts []string
+       for _, mcast := range values["mcast"] {
+               if v, ok := aliases[mcast]; ok {
+                       mcast = v
+               }
+               mcasts = append(mcasts, mcast)
+       }
+
+       addrOur := yaddr.AddrForKey(ed25519.PublicKey(
+               prvRaw[len(prvRaw)-ed25519.PublicKeySize:],
+       ))
+       ipOur := net.IP(addrOur[:])
+
+       stacksM.Lock()
+       defer stacksM.Unlock()
+       e, ok := stacks[prvHex]
+       if ok {
+               return e.ListenTCP(&net.TCPAddr{IP: ipOur, Port: port})
+       }
+       cfg := ycfg.NodeConfig{
+               PrivateKey:        prvHex,
+               Listen:            binds,
+               AllowedPublicKeys: pubs,
+               Peers:             peers,
+               NodeInfo:          map[string]interface{}{"name": "NNCP"},
+               NodeInfoPrivacy:   true,
+       }
+       core, err := ycoreStart(&cfg, port, mcasts)
+       if err != nil {
+               return nil, err
+       }
+       oobState := OOBState{core, *yaddr.SubnetForKey(core.PublicKey())}
+       if err := core.SetOutOfBandHandler(oobState.Handler); err != nil {
+               core.Stop()
+               return nil, err
+       }
+       e, err = NewTCPIPEndpoint(core, ipOur, uint32(core.MTU()))
+       if err != nil {
+               core.Stop()
+               return nil, err
+       }
+       ln, err := e.ListenTCP(&net.TCPAddr{IP: ipOur, Port: port})
+       if err != nil {
+               e.Close()
+               core.Stop()
+               return nil, err
+       }
+       stacks[prvHex] = e
+       return ln, nil
+}

diff --git a/src/yggdrasil_dummy.go b/src/yggdrasil/yggdrasil_dummy.go
similarity index 83%
rename from src/yggdrasil_dummy.go
rename to src/yggdrasil/yggdrasil_dummy.go
index f6e6073d9c3392a1e528d2c4d0ac375cbcbbd43d..9eaea66fd6493ff3c962db746f32d94e2b0cbf56 100644 (file)
--- a/src/yggdrasil_dummy.go
+++ b/src/yggdrasil/yggdrasil_dummy.go
@@ -18,7 +18,7 @@ You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-package nncp
+package yggdrasil
 
 import (
        "errors"
@@ -27,11 +27,11 @@ import (
 
 var NoYggdrasil = errors.New("no Yggdrasil support is compiled in")
 
-func NewYggdrasilConn(aliases map[string]string, in string) (ConnDeadlined, error) {
+func NewConn(aliases map[string]string, in string) (ConnDeadlined, error) {
        return nil, NoYggdrasil
 
 }
 
-func NewYggdrasilListener(aliases map[string]string, in string) (net.Listener, error) {
+func NewListener(aliases map[string]string, in string) (net.Listener, error) {
        return nil, NoYggdrasil
 }