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https://github.com/netbirdio/netbird.git
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891ba277b1
Initial modification to support mobile client Export necessary interfaces for Android framework
108 lines
2.9 KiB
Go
108 lines
2.9 KiB
Go
package iface
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import (
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"net"
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"sync"
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"time"
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log "github.com/sirupsen/logrus"
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"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
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)
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const (
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DefaultMTU = 1280
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DefaultWgPort = 51820
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)
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// WGIface represents a interface instance
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type WGIface struct {
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tun *tunDevice
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configurer wGConfigurer
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mu sync.Mutex
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}
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// Create creates a new Wireguard interface, sets a given IP and brings it up.
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// Will reuse an existing one.
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func (w *WGIface) Create() error {
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w.mu.Lock()
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defer w.mu.Unlock()
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log.Debugf("create Wireguard interface %s", w.tun.DeviceName())
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return w.tun.Create()
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}
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// Name returns the interface name
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func (w *WGIface) Name() string {
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return w.tun.DeviceName()
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}
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// Address returns the interface address
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func (w *WGIface) Address() WGAddress {
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return w.tun.WgAddress()
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}
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// Configure configures a Wireguard interface
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// The interface must exist before calling this method (e.g. call interface.Create() before)
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func (w *WGIface) Configure(privateKey string, port int) error {
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w.mu.Lock()
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defer w.mu.Unlock()
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log.Debugf("configuring Wireguard interface %s", w.tun.DeviceName())
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return w.configurer.configureInterface(privateKey, port)
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}
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// UpdateAddr updates address of the interface
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func (w *WGIface) UpdateAddr(newAddr string) error {
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w.mu.Lock()
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defer w.mu.Unlock()
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addr, err := parseWGAddress(newAddr)
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if err != nil {
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return err
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}
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return w.tun.UpdateAddr(addr)
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}
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// UpdatePeer updates existing Wireguard Peer or creates a new one if doesn't exist
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// Endpoint is optional
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func (w *WGIface) UpdatePeer(peerKey string, allowedIps string, keepAlive time.Duration, endpoint *net.UDPAddr, preSharedKey *wgtypes.Key) error {
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w.mu.Lock()
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defer w.mu.Unlock()
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log.Debugf("updating interface %s peer %s: endpoint %s ", w.tun.DeviceName(), peerKey, endpoint)
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return w.configurer.updatePeer(peerKey, allowedIps, keepAlive, endpoint, preSharedKey)
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}
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// RemovePeer removes a Wireguard Peer from the interface iface
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func (w *WGIface) RemovePeer(peerKey string) error {
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w.mu.Lock()
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defer w.mu.Unlock()
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log.Debugf("Removing peer %s from interface %s ", peerKey, w.tun.DeviceName())
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return w.configurer.removePeer(peerKey)
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}
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// AddAllowedIP adds a prefix to the allowed IPs list of peer
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func (w *WGIface) AddAllowedIP(peerKey string, allowedIP string) error {
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w.mu.Lock()
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defer w.mu.Unlock()
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log.Debugf("adding allowed IP to interface %s and peer %s: allowed IP %s ", w.tun.DeviceName(), peerKey, allowedIP)
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return w.configurer.addAllowedIP(peerKey, allowedIP)
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}
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// RemoveAllowedIP removes a prefix from the allowed IPs list of peer
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func (w *WGIface) RemoveAllowedIP(peerKey string, allowedIP string) error {
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w.mu.Lock()
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defer w.mu.Unlock()
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log.Debugf("removing allowed IP from interface %s and peer %s: allowed IP %s ", w.tun.DeviceName(), peerKey, allowedIP)
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return w.configurer.removeAllowedIP(peerKey, allowedIP)
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}
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// Close closes the tunnel interface
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func (w *WGIface) Close() error {
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w.mu.Lock()
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defer w.mu.Unlock()
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return w.tun.Close()
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}
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