86 lines
2.1 KiB
Go
86 lines
2.1 KiB
Go
package peer
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import (
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"net/netip"
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"time"
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"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
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"vppn/peer/control"
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)
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type PeerState string
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const (
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StateRelayed = PeerState("RELAY ")
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StateProbing = PeerState("PROBE ")
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StateDirect = PeerState("DIRECT")
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)
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type Peer struct {
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wgPeer wgtypes.Peer
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VPNIP netip.Addr // VPN IP address.
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Name string // Human-readable DNS label.
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IsRelay bool // Peer is a relay.
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IsPublic bool // Peer has a public IP.
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EndpointV4 netip.AddrPort // Reported IPv4 endpoint.
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EndpointV6 netip.AddrPort // Reported IPv6 endpoint.
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EndpointLAN netip.AddrPort // Discovered via multicast.
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EndpointWG netip.AddrPort // Current wireguard endpoint.
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RTT time.Duration // Round-trip time.
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LastPing time.Time // Last time we had a ping.
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ProbeStart time.Time // When we started probing.
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ProbeEndpoint netip.AddrPort
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State PeerState // Current routing state; updated on each devXxx call.
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Role control.Role // Role in relation to the local application.
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SignPubKey [32]byte // nacl/sign public key for verifying multicast beacons.
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}
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// PubKey is the wireguard public key.
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func (p *Peer) PubKey() wgtypes.Key {
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return p.wgPeer.PublicKey
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}
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func (p *Peer) WGEndpoint() netip.AddrPort {
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ep := p.wgPeer.Endpoint
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if ep == nil {
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return netip.AddrPort{}
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}
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addr, ok := netip.AddrFromSlice(ep.IP)
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if !ok {
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return netip.AddrPort{}
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}
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return netip.AddrPortFrom(addr.Unmap(), uint16(ep.Port))
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}
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func (p *Peer) LastHandshakeTime() time.Time {
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return p.wgPeer.LastHandshakeTime
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}
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func (p *Peer) Up() bool {
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return time.Since(p.LastPing) < 3*PingInterval
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}
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func (p *Peer) CanRelay() bool {
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return p.IsRelay && p.Up()
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}
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func (p *Peer) PreferredEndpoint() netip.AddrPort {
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if p.EndpointLAN.IsValid() {
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return p.EndpointLAN
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} else if p.EndpointV4.IsValid() {
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return p.EndpointV4
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} else {
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return p.EndpointV6
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}
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}
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func (p *Peer) UpdateEndpoints(v4, v6 netip.AddrPort) {
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if v4.IsValid() {
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p.EndpointV4 = v4
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}
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if v6.IsValid() {
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p.EndpointV6 = v6
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}
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}
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