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50 lines
1.0 KiB
50 lines
1.0 KiB
1 year ago
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package zones
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import "net/netip"
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// ParseRingZeroAddress extracts zone and node ID from a wg0 [netip.Addr]
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func ParseRingZeroAddress(addr netip.Addr) (zoneID int, nodeID int, ok bool) {
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if addr.IsValid() {
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a4 := addr.As4()
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if a4[0] == 10 && a4[1] == 0 {
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return int(a4[2]), int(a4[3]), true
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}
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}
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return 0, 0, false
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}
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// RingZeroAddress returns a wg0 IP address
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func RingZeroAddress(zoneID, nodeID int) netip.Addr {
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c := zoneID
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d := nodeID
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return netip.AddrFrom4([4]byte{
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10, 0, uint8(c), uint8(d),
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})
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}
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// ParseRingOneAddress extracts zone and node ID from a wg1 [netip.Addr]
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func ParseRingOneAddress(addr netip.Addr) (zoneID int, nodeID int, ok bool) {
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if addr.IsValid() {
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a4 := addr.As4()
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if a4[0] == 10 && a4[2] == 0 {
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zoneID = int(a4[1] >> 4)
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nodeID = int(a4[3])
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return zoneID, nodeID, true
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}
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}
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return 0, 0, false
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}
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// RingOneAddress returns a wg1 IP address
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func RingOneAddress(zoneID, nodeID int) netip.Addr {
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b := zoneID << 4
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d := nodeID
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return netip.AddrFrom4([4]byte{
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10, uint8(b), 0, uint8(d),
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})
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}
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