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