diff options
Diffstat (limited to 'WireGuard/WireGuard/Model/IPAddressRange.swift')
-rw-r--r-- | WireGuard/WireGuard/Model/IPAddressRange.swift | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/WireGuard/WireGuard/Model/IPAddressRange.swift b/WireGuard/WireGuard/Model/IPAddressRange.swift new file mode 100644 index 0000000..4498b58 --- /dev/null +++ b/WireGuard/WireGuard/Model/IPAddressRange.swift @@ -0,0 +1,54 @@ +// +// IPAddressRange.swift +// WireGuard +// +// Created by Roopesh Chander on 13/10/18. +// Copyright © 2018 WireGuard LLC. All rights reserved. +// + +import Foundation +import Network + +@available(OSX 10.14, iOS 12.0, *) +struct IPAddressRange { + let address: IPAddress + var networkPrefixLength: UInt8 +} + +@available(OSX 10.14, iOS 12.0, *) +extension IPAddressRange: Codable { + public func encode(to encoder: Encoder) throws { + var container = encoder.singleValueContainer() + let addressDataLength: Int + if address is IPv4Address { + addressDataLength = 4 + } else if address is IPv6Address { + addressDataLength = 16 + } else { + fatalError() + } + var data = Data(capacity: addressDataLength + 1) + data.append(address.rawValue) + data.append(networkPrefixLength) + try container.encode(data) + } + public init(from decoder: Decoder) throws { + let container = try decoder.singleValueContainer() + var data = try container.decode(Data.self) + networkPrefixLength = data.removeLast() + let ipAddressFromData: IPAddress? = { + switch (data.count) { + case 4: return IPv4Address(data) + case 16: return IPv6Address(data) + default: return nil + } + }() + guard let ipAddress = ipAddressFromData else { + throw DecodingError.invalidData + } + address = ipAddress + } + enum DecodingError: Error { + case invalidData + } +} |