93 lines
2.4 KiB
Go
93 lines
2.4 KiB
Go
/*
|
|
Copyright 2019 Stellar Project
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy of
|
|
this software and associated documentation files (the "Software"), to deal in the
|
|
Software without restriction, including without limitation the rights to use, copy,
|
|
modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
|
|
and to permit persons to whom the Software is furnished to do so, subject to the
|
|
following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in all copies
|
|
or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
|
|
INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
|
|
PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
|
|
FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
|
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
|
|
USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
package peer
|
|
|
|
import (
|
|
"context"
|
|
"os"
|
|
|
|
"github.com/sirupsen/logrus"
|
|
"github.com/stellarproject/heimdall"
|
|
v1 "github.com/stellarproject/heimdall/api/v1"
|
|
"github.com/stellarproject/heimdall/wg"
|
|
)
|
|
|
|
func (p *Peer) sync(ctx context.Context) error {
|
|
c, err := p.getClient(p.cfg.Address)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer c.Close()
|
|
|
|
resp, err := c.Connect()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
peers := []*v1.Peer{}
|
|
for _, peer := range resp.Peers {
|
|
// don't add self
|
|
if peer.ID == p.cfg.ID {
|
|
continue
|
|
}
|
|
peers = append(peers, peer)
|
|
}
|
|
|
|
// generate wireguard config
|
|
wireguardCfg := &wg.Config{
|
|
Iface: p.cfg.InterfaceName,
|
|
Address: resp.Address,
|
|
PrivateKey: resp.KeyPair.PrivateKey,
|
|
Peers: peers,
|
|
DNS: resp.DNS,
|
|
}
|
|
|
|
wireguardConfigPath := p.getWireguardConfigPath()
|
|
tmpCfg, err := wg.GeneratePeerConfig(wireguardCfg, wireguardConfigPath)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
h, err := heimdall.HashConfig(tmpCfg)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// if config has not change skip update
|
|
if h == p.currentVersion {
|
|
return nil
|
|
}
|
|
p.currentVersion = h
|
|
|
|
logrus.Debugf("updating peer config to version %s", h)
|
|
// update wireguard config
|
|
if err := os.Rename(tmpCfg, wireguardConfigPath); err != nil {
|
|
return err
|
|
}
|
|
|
|
// reload wireguard
|
|
if err := wg.RestartTunnel(ctx, p.getTunnelName()); err != nil {
|
|
return err
|
|
}
|
|
|
|
return nil
|
|
}
|