move to go modulesHEADmaster

3 files changed, 327 insertions, 0 deletions

diff --git a/cmd/anygone/Makefile b/cmd/anygone/Makefile
new file mode 100644
index 0000000..92cb899
--- /dev/null
+++ b/cmd/anygone/Makefile
@@ -0,0 +1,76 @@
+##
+## Copyright (c) 2017 anygone contributors (see AUTHORS file)
+## All rights reserved.
+##
+## Redistribution and use in source and binary forms, with or without
+## modification, are permitted provided that the following conditions are met:
+##
+## * Redistributions of source code must retain the above copyright notice, this
+##   list of conditions and the following disclaimer.
+##
+## * Redistributions in binary form must reproduce the above copyright notice,
+##   this list of conditions and the following disclaimer in the documentation
+##   and/or other materials provided with the distribution.
+##
+## * Neither the name of anygone nor the names of its
+##   contributors may be used to endorse or promote products derived from
+##   this software without specific prior written permission.
+##
+## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+## AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+## DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+## FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+## DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+## SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+## CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+## OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+##
+
+GOCMD := go
+ifdef GOROOT
+GOCMD = $(GOROOT)/bin/go
+endif
+EXECUTEABLE := anygone
+
+LIBS := "go.anytun.org/anygone/satp" \
+        "github.com/lab11/go-tuntap/tuntap" \
+        "github.com/spf13/pflag"
+
+all: build test
+.PHONY: vet format getlibs updatelibs build build-static test bench cover clean distclean
+
+vet:
+	$(GOCMD) vet
+
+format:
+	$(GOCMD) fmt
+
+getlibs:
+	@$(foreach lib,$(LIBS), echo "fetching lib: $(lib)"; $(GOCMD) get $(lib);)
+
+updatelibs:
+	@$(foreach lib,$(LIBS), echo "updating lib: $(lib)"; $(GOCMD) get -u $(lib);)
+
+build: getlibs
+	$(GOCMD) build -o $(EXECUTEABLE)
+
+build-static: getlibs
+	$(GOCMD) build -tags netgo -o $(EXECUTEABLE)
+
+test:
+	$(GOCMD) test
+
+bench:
+	@$(GOCMD) test -bench=.
+
+cover:
+	@$(GOCMD) test -coverprofile=coverage.out
+	@$(GOCMD) tool cover -html=coverage.out
+
+distclean: clean
+	rm -f $(EXECUTEABLE).8
+
+clean:
+	rm -f $(EXECUTEABLE)
diff --git a/cmd/anygone/anygone.go b/cmd/anygone/anygone.go
new file mode 100644
index 0000000..ce1734c
--- /dev/null
+++ b/cmd/anygone/anygone.go
@@ -0,0 +1,122 @@
+//
+// Copyright (c) 2017 anygone contributors (see AUTHORS file)
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+// * Redistributions of source code must retain the above copyright notice, this
+//   list of conditions and the following disclaimer.
+//
+// * Redistributions in binary form must reproduce the above copyright notice,
+//   this list of conditions and the following disclaimer in the documentation
+//   and/or other materials provided with the distribution.
+//
+// * Neither the name of anygone nor the names of its
+//   contributors may be used to endorse or promote products derived from
+//   this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"os"
+
+	"go.anytun.org/anygone/tuntap"
+)
+
+var (
+	al  = log.New(os.Stdout, "[anygone]\t", log.LstdFlags)
+	adl = log.New(ioutil.Discard, "[anygone dbg]\t", log.LstdFlags)
+)
+
+func init() {
+	//	if _, exists := os.LookupEnv("ANYGONE_DEBUG"); exists {
+	adl.SetOutput(os.Stderr)
+	//	}
+}
+
+func main() {
+	cfg, err := NewConfig()
+	if err != nil {
+		fmt.Printf("Error while parsing commandline: %v\n\n", err)
+		cfg.PrintUsage()
+		os.Exit(2)
+	}
+	if cfg.Help {
+		cfg.PrintUsage()
+		os.Exit(0)
+	}
+	if cfg.Version {
+		cfg.PrintVersion()
+		os.Exit(0)
+	}
+	cfg.Dump()
+
+	al.Println("just started...")
+
+	dev, err := tuntap.NewDevice(cfg.DeviceType, cfg.DeviceName)
+	if err != nil {
+		al.Printf("Error while opening device: %v", err)
+		os.Exit(1)
+	}
+	al.Printf("Device '%s': opened", dev.Name())
+
+	if cfg.IFConfig.Valid {
+		if err = dev.AddAddress(cfg.IFConfig.Net); err != nil {
+			al.Printf("Error while configuring device: %v", err)
+			os.Exit(1)
+		}
+		al.Printf("Device '%s': added address %s", dev.Name(), cfg.IFConfig.Net.String())
+	}
+
+	if err = dev.SetMTU(1400); err != nil { // TODO: hardcoded value
+		al.Printf("Error while configuring device: %v", err)
+		os.Exit(1)
+	}
+	if err = dev.Up(); err != nil {
+		al.Printf("Error while configuring device: %v", err)
+		os.Exit(1)
+	}
+
+	if cfg.PostUp != "" {
+		al.Printf("Device '%s': running post-up script: %s", dev.Name(), cfg.PostUp)
+		if err = dev.RunPostUp(cfg.PostUp); err != nil {
+			al.Printf("Error while running post-up script: %v", err)
+			os.Exit(1)
+		}
+		al.Printf("Device '%s': post-up script returned 0", dev.Name())
+	}
+
+	for {
+		pkt, err := dev.ReadPacket()
+		if err != nil {
+			al.Printf("Error while reading packet from device: %v", err)
+			os.Exit(1)
+		}
+		payload := ""
+		for i, b := range pkt.Packet {
+			if i == 0 {
+				payload = fmt.Sprintf("{0x%02X", b)
+			} else {
+				payload = payload + fmt.Sprintf(", 0x%02X", b)
+			}
+		}
+		payload = payload + "}"
+		adl.Printf("got packet: Type {0x%04X}, Payload %s", pkt.Protocol, payload)
+	}
+}
diff --git a/cmd/anygone/conf.go b/cmd/anygone/conf.go
new file mode 100644
index 0000000..5066808
--- /dev/null
+++ b/cmd/anygone/conf.go
@@ -0,0 +1,129 @@
+//
+// Copyright (c) 2017 anygone contributors (see AUTHORS file)
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+// * Redistributions of source code must retain the above copyright notice, this
+//   list of conditions and the following disclaimer.
+//
+// * Redistributions in binary form must reproduce the above copyright notice,
+//   this list of conditions and the following disclaimer in the documentation
+//   and/or other materials provided with the distribution.
+//
+// * Neither the name of anygone nor the names of its
+//   contributors may be used to endorse or promote products derived from
+//   this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+
+package main
+
+import (
+	"fmt"
+	"net"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/spf13/pflag"
+)
+
+type IPAddrCIDR struct {
+	Net   net.IPNet
+	Valid bool
+}
+
+func (ipnet IPAddrCIDR) String() string {
+	if ipnet.Valid {
+		return ipnet.Net.String()
+	}
+	return ""
+}
+
+func (ipnet *IPAddrCIDR) Set(value string) error {
+	ip, net, err := net.ParseCIDR(strings.TrimSpace(value))
+	if err != nil {
+		return err
+	}
+	net.IP = ip
+	*ipnet = IPAddrCIDR{*net, true}
+	return nil
+}
+
+func (*IPAddrCIDR) Type() string {
+	return "ipNet"
+}
+
+type Config struct {
+	name  string
+	flags *pflag.FlagSet
+
+	Help       bool
+	Version    bool
+	DeviceName string
+	DeviceType string
+	IFConfig   IPAddrCIDR
+	PostUp     string
+}
+
+func (cfg *Config) PrintUsage() {
+	cfg.flags.Usage()
+}
+
+func (cfg *Config) PrintVersion() {
+	fmt.Println("anygone version 0.1")
+}
+
+func (cfg *Config) Dump() {
+	fmt.Printf("Config: %+v\n", cfg)
+}
+
+func (cfg *Config) parsePost() error {
+	extraArgs := cfg.flags.Args()
+	if len(extraArgs) > 0 {
+		return fmt.Errorf("unknown additional parameters (%s)", strings.Join(extraArgs, ", "))
+	}
+
+	if cfg.DeviceName == "" && cfg.DeviceType == "" {
+		cfg.DeviceType = "tun"
+	}
+	return nil
+}
+
+func NewConfig() (cfg *Config, err error) {
+	cfg = &Config{}
+	cfg.name = filepath.Base(os.Args[0])
+	cfg.flags = pflag.NewFlagSet(cfg.name, pflag.ContinueOnError)
+	cfg.flags.SetInterspersed(false)
+	cfg.flags.SortFlags = false
+	cfg.flags.Usage = func() {
+		fmt.Fprintf(os.Stderr, "Usage of %s:\n", cfg.name)
+		cfg.flags.PrintDefaults()
+	}
+
+	cfg.flags.BoolVarP(&cfg.Help, "help", "h", false, "print this...")
+	cfg.flags.BoolVarP(&cfg.Version, "version", "v", false, "print version info and exit")
+
+	cfg.flags.StringVarP(&cfg.DeviceName, "dev", "d", "", "device name")
+	cfg.flags.StringVarP(&cfg.DeviceType, "type", "t", "", "device type")
+	cfg.flags.VarP(&cfg.IFConfig, "ifconfig", "n", "the local address for the tun/tap device and the used prefix length")
+	cfg.flags.StringVarP(&cfg.PostUp, "post-up-script", "x", "", "script gets called after interface is created")
+
+	if err = cfg.flags.Parse(os.Args[1:]); err != nil {
+		return
+	}
+	err = cfg.parsePost()
+	return
+}