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https://github.com/mudler/edgevpn.git
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f5ea51d82e
As EdgeVPN can be used as library and it turns out to be quite useful, change license for follow up versions to Apache so can be used as a library easilier.
70 lines
1.9 KiB
Go
70 lines
1.9 KiB
Go
//go:build windows
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// +build windows
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/*
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Copyright © 2021-2022 Ettore Di Giacinto <mudler@mocaccino.org>
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package vpn
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import (
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"fmt"
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"log"
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"net"
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"os/exec"
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"github.com/songgao/water"
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)
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func prepareInterface(c *Config) error {
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err := netsh("interface", "ip", "set", "address", "name=", c.InterfaceName, "static", c.InterfaceAddress)
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if err != nil {
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log.Println(err)
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}
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err = netsh("interface", "ipv4", "set", "subinterface", c.InterfaceName, "mtu=", fmt.Sprintf("%d", c.InterfaceMTU))
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if err != nil {
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log.Println(err)
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}
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return nil
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}
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func createInterface(c *Config) (*water.Interface, error) {
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// TUN on Windows requires address and network to be set on device creation stage
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// We also set network to 0.0.0.0/0 so we able to reach networks behind the node
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// https://github.com/songgao/water/blob/master/params_windows.go
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// https://gitlab.com/openconnect/openconnect/-/blob/master/tun-win32.c
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ip, _, err := net.ParseCIDR(c.InterfaceAddress)
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if err != nil {
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return nil, err
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}
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network := net.IPNet{
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IP: ip,
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Mask: net.IPv4Mask(0, 0, 0, 0),
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}
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config := water.Config{
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DeviceType: c.DeviceType,
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PlatformSpecificParams: water.PlatformSpecificParams{
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ComponentID: "tap0901",
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InterfaceName: c.InterfaceName,
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Network: network.String(),
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},
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}
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return water.New(config)
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}
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func netsh(args ...string) (err error) {
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cmd := exec.Command("netsh", args...)
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err = cmd.Run()
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return
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}
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