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71029cea2d
This updates all source files to use a new standard header for copyright and license declaration. Notably, copyright no longer includes a date, and we now use the standard SPDX-License-Identifier header. This commit was done almost entirely mechanically with perl, and then some minimal manual fixes. Updates #6865 Signed-off-by: Will Norris <will@tailscale.com>
69 lines
1.5 KiB
Go
69 lines
1.5 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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package wgcfg
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import (
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"io"
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"sort"
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"github.com/tailscale/wireguard-go/conn"
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"github.com/tailscale/wireguard-go/device"
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"github.com/tailscale/wireguard-go/tun"
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"tailscale.com/types/logger"
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"tailscale.com/util/multierr"
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)
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// NewDevice returns a wireguard-go Device configured for Tailscale use.
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func NewDevice(tunDev tun.Device, bind conn.Bind, logger *device.Logger) *device.Device {
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ret := device.NewDevice(tunDev, bind, logger)
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ret.DisableSomeRoamingForBrokenMobileSemantics()
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return ret
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}
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func DeviceConfig(d *device.Device) (*Config, error) {
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r, w := io.Pipe()
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errc := make(chan error, 1)
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go func() {
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errc <- d.IpcGetOperation(w)
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w.Close()
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}()
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cfg, fromErr := FromUAPI(r)
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r.Close()
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getErr := <-errc
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err := multierr.New(getErr, fromErr)
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if err != nil {
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return nil, err
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}
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sort.Slice(cfg.Peers, func(i, j int) bool {
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return cfg.Peers[i].PublicKey.Less(cfg.Peers[j].PublicKey)
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})
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return cfg, nil
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}
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// ReconfigDevice replaces the existing device configuration with cfg.
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func ReconfigDevice(d *device.Device, cfg *Config, logf logger.Logf) (err error) {
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defer func() {
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if err != nil {
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logf("wgcfg.Reconfig failed: %v", err)
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}
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}()
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prev, err := DeviceConfig(d)
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if err != nil {
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return err
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}
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r, w := io.Pipe()
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errc := make(chan error, 1)
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go func() {
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errc <- d.IpcSetOperation(r)
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r.Close()
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}()
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toErr := cfg.ToUAPI(logf, w, prev)
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w.Close()
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setErr := <-errc
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return multierr.New(setErr, toErr)
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}
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