package zones import ( "bytes" "fmt" "os" "darvaza.org/core" "git.jpi.io/amery/jpictl/pkg/wireguard" ) // GetWireguardConfig reads a wgN.conf file func (m *Machine) GetWireguardConfig(ring int) (*wireguard.Config, error) { data, err := m.ReadFile("wg%v.conf", ring) if err != nil { return nil, err } r := bytes.NewReader(data) return wireguard.NewConfigFromReader(r) } func (m *Machine) tryApplyWireguardConfig(ring int) error { wg, err := m.GetWireguardConfig(ring) switch { case os.IsNotExist(err): return nil case err != nil: return err default: return m.applyWireguardConfig(ring, wg) } } func (m *Machine) applyWireguardConfig(ring int, wg *wireguard.Config) error { addr := wg.GetAddress() zoneID, nodeID, ok := Rings[ring].Decode(addr) if !ok { return fmt.Errorf("%s: invalid wg%v address: %s", m.Name, ring, addr) } if err := m.applyZoneNodeID(zoneID, nodeID); err != nil { err = core.Wrapf(err, "%s: wg%v:%s", m.Name, ring, addr) return err } return nil } func (m *Machine) applyZoneNodeID(zoneID, nodeID int) error { switch { case zoneID == 0: return fmt.Errorf("invalid %s", "zoneID") case nodeID == 0: return fmt.Errorf("invalid %s", "nodeID") case m.ID() != nodeID: return fmt.Errorf("invalid %s: %v ≠ %v", "zoneID", m.ID(), nodeID) case m.zone.ID != 0 && m.zone.ID != zoneID: return fmt.Errorf("invalid %s: %v ≠ %v", "zoneID", m.zone.ID, zoneID) case m.zone.ID == 0: m.zone.ID = zoneID } return nil }