Prepare for rewrite: Move WireGuardNetworkExtension into the new project folder

Signed-off-by: Roopesh Chander <roop@roopc.net>

5 files changed, 0 insertions, 311 deletions

diff --git a/WireGuardNetworkExtension/Info.plist b/WireGuardNetworkExtension/Info.plist
deleted file mode 100644
index 497cce6..0000000
--- a/WireGuardNetworkExtension/Info.plist
+++ /dev/null
@@ -1,31 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>CFBundleDevelopmentRegion</key>
-	<string>$(DEVELOPMENT_LANGUAGE)</string>
-	<key>CFBundleDisplayName</key>
-	<string>WireGuardNetworkExtension</string>
-	<key>CFBundleExecutable</key>
-	<string>$(EXECUTABLE_NAME)</string>
-	<key>CFBundleIdentifier</key>
-	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
-	<key>CFBundleInfoDictionaryVersion</key>
-	<string>6.0</string>
-	<key>CFBundleName</key>
-	<string>$(PRODUCT_NAME)</string>
-	<key>CFBundlePackageType</key>
-	<string>XPC!</string>
-	<key>CFBundleShortVersionString</key>
-	<string>1.0</string>
-	<key>CFBundleVersion</key>
-	<string>1</string>
-	<key>NSExtension</key>
-	<dict>
-		<key>NSExtensionPointIdentifier</key>
-		<string>com.apple.networkextension.packet-tunnel</string>
-		<key>NSExtensionPrincipalClass</key>
-		<string>$(PRODUCT_MODULE_NAME).PacketTunnelProvider</string>
-	</dict>
-</dict>
-</plist>
diff --git a/WireGuardNetworkExtension/Log.swift b/WireGuardNetworkExtension/Log.swift
deleted file mode 100644
index 40e097f..0000000
--- a/WireGuardNetworkExtension/Log.swift
+++ /dev/null
@@ -1,9 +0,0 @@
-//
-//  Copyright © 2018 WireGuard LLC. All rights reserved.
-//
-
-import os.log
-
-struct Log {
-    static var general = OSLog(subsystem: "com.wireguard.ios.network-extension", category: "general")
-}
diff --git a/WireGuardNetworkExtension/PacketTunnelProvider.swift b/WireGuardNetworkExtension/PacketTunnelProvider.swift
deleted file mode 100644
index 1480abc..0000000
--- a/WireGuardNetworkExtension/PacketTunnelProvider.swift
+++ /dev/null
@@ -1,247 +0,0 @@
-//
-//  Copyright © 2018 WireGuard LLC. All rights reserved.
-//
-
-import NetworkExtension
-import os.log
-
-enum PacketTunnelProviderError: Error {
-    case tunnelSetupFailed
-}
-
-/// A packet tunnel provider object.
-class PacketTunnelProvider: NEPacketTunnelProvider {
-
-    // MARK: Properties
-
-    private var wgHandle: Int32?
-    private var wgContext: WireGuardContext?
-
-    private var config: NETunnelProviderProtocol {
-        return self.protocolConfiguration as! NETunnelProviderProtocol // swiftlint:disable:this force_cast
-    }
-
-    private var interfaceName: String {
-        return config.providerConfiguration![PCKeys.title.rawValue]! as! String // swiftlint:disable:this force_cast
-    }
-
-    private var settings: String {
-        return config.providerConfiguration![PCKeys.settings.rawValue]! as! String // swiftlint:disable:this force_cast
-    }
-
-    // MARK: NEPacketTunnelProvider
-
-    /// Begin the process of establishing the tunnel.
-    override func startTunnel(options: [String: NSObject]?, completionHandler startTunnelCompletionHandler: @escaping (Error?) -> Void) {
-        os_log("Starting tunnel", log: Log.general, type: .info)
-
-        let validatedEndpoints = (config.providerConfiguration?[PCKeys.endpoints.rawValue] as? String ?? "").commaSeparatedToArray().compactMap { try? Endpoint(endpointString: String($0)) }.compactMap {$0}
-        let validatedAddresses = (config.providerConfiguration?[PCKeys.addresses.rawValue] as? String ?? "").commaSeparatedToArray().compactMap { try? CIDRAddress(stringRepresentation: String($0)) }.compactMap { $0 }
-
-        guard let firstEndpoint = validatedEndpoints.first else {
-            startTunnelCompletionHandler(PacketTunnelProviderError.tunnelSetupFailed)
-            return
-        }
-
-        configureLogger()
-        wgContext = WireGuardContext(packetFlow: self.packetFlow)
-
-        let handle = connect(interfaceName: interfaceName, settings: settings)
-
-        if handle < 0 {
-            startTunnelCompletionHandler(PacketTunnelProviderError.tunnelSetupFailed)
-            return
-        }
-
-        wgHandle = handle
-
-        // We use the first endpoint for the ipAddress
-        let newSettings = NEPacketTunnelNetworkSettings(tunnelRemoteAddress: firstEndpoint.ipAddress)
-        newSettings.tunnelOverheadBytes = 80
-
-        // IPv4 settings
-        let validatedIPv4Addresses = validatedAddresses.filter { $0.addressType == .IPv4}
-        if validatedIPv4Addresses.count > 0 {
-            let ipv4Settings = NEIPv4Settings(addresses: validatedIPv4Addresses.map { $0.ipAddress }, subnetMasks: validatedIPv4Addresses.map { $0.subnetString })
-            ipv4Settings.includedRoutes = [NEIPv4Route.default()]
-            ipv4Settings.excludedRoutes = validatedEndpoints.filter { $0.addressType == .IPv4}.map {
-                NEIPv4Route(destinationAddress: $0.ipAddress, subnetMask: "255.255.255.255")}
-
-            newSettings.ipv4Settings = ipv4Settings
-        }
-
-        // IPv6 settings
-        let validatedIPv6Addresses = validatedAddresses.filter { $0.addressType == .IPv6}
-        if validatedIPv6Addresses.count > 0 {
-            let ipv6Settings = NEIPv6Settings(addresses: validatedIPv6Addresses.map { $0.ipAddress }, networkPrefixLengths: validatedIPv6Addresses.map { NSNumber(value: $0.subnet) })
-            ipv6Settings.includedRoutes = [NEIPv6Route.default()]
-            ipv6Settings.excludedRoutes = validatedEndpoints.filter { $0.addressType == .IPv6 }.map { NEIPv6Route(destinationAddress: $0.ipAddress, networkPrefixLength: 128) }
-
-            newSettings.ipv6Settings = ipv6Settings
-        }
-
-        if let dns = config.providerConfiguration?[PCKeys.dns.rawValue] as? String {
-            newSettings.dnsSettings = NEDNSSettings(servers: dns.commaSeparatedToArray())
-        }
-
-        if let mtu = config.providerConfiguration![PCKeys.mtu.rawValue] as? NSNumber, mtu.intValue > 0 {
-            newSettings.mtu = mtu
-        }
-
-        setTunnelNetworkSettings(newSettings) { (error) in
-            if let error = error {
-                os_log("Error setting network settings: %s", log: Log.general, type: .error, error.localizedDescription)
-                startTunnelCompletionHandler(PacketTunnelProviderError.tunnelSetupFailed)
-            } else {
-                startTunnelCompletionHandler(nil /* No errors */)
-            }
-        }
-    }
-
-    /// Begin the process of stopping the tunnel.
-    override func stopTunnel(with reason: NEProviderStopReason, completionHandler: @escaping () -> Void) {
-        os_log("Stopping tunnel", log: Log.general, type: .info)
-        if let handle = wgHandle {
-            wgTurnOff(handle)
-        }
-        wgContext?.closeTunnel()
-        completionHandler()
-    }
-
-    /// Handle IPC messages from the app.
-    override func handleAppMessage(_ messageData: Data, completionHandler: ((Data?) -> Void)?) {
-        let responseData: Data?
-
-        let message = ExtensionMessage(messageData)
-
-        switch message {
-        case ExtensionMessage.requestVersion:
-            responseData = (wgVersion().flatMap { String(cString: $0) } ?? "").data(using: .utf8)
-        default:
-            responseData = nil
-        }
-
-        completionHandler?(responseData)
-    }
-
-    private func configureLogger() {
-        wgSetLogger { (level, tagCStr, msgCStr) in
-            let logType: OSLogType
-            switch level {
-            case 0:
-                logType = .debug
-            case 1:
-                logType = .info
-            case 2:
-                logType = .error
-            default:
-                logType = .default
-            }
-            let tag = (tagCStr != nil) ? String(cString: tagCStr!) : ""
-            let msg = (msgCStr != nil) ? String(cString: msgCStr!) : ""
-            os_log("wg log: %{public}s: %{public}s", log: Log.general, type: logType, tag, msg)
-        }
-    }
-
-    private func connect(interfaceName: String, settings: String) -> Int32 { // swiftlint:disable:this cyclomatic_complexity
-        return withStringsAsGoStrings(interfaceName, settings) { (nameGoStr, settingsGoStr) -> Int32 in
-            return withUnsafeMutablePointer(to: &wgContext) { (wgCtxPtr) -> Int32 in
-                return wgTurnOn(nameGoStr, settingsGoStr, { (wgCtxPtr, buf, len) -> Int in
-                    autoreleasepool {
-                        // read_fn: Read from the TUN interface and pass it on to WireGuard
-                        guard let wgCtxPtr = wgCtxPtr else { return 0 }
-                        guard let buf = buf else { return 0 }
-                        let wgContext = wgCtxPtr.bindMemory(to: WireGuardContext.self, capacity: 1).pointee
-                        var isTunnelClosed = false
-                        guard let packet = wgContext.readPacket(isTunnelClosed: &isTunnelClosed) else { return 0 }
-                        if isTunnelClosed { return -1 }
-                        let packetData = packet.data
-                        if packetData.count <= len {
-                            packetData.copyBytes(to: buf, count: packetData.count)
-                            return packetData.count
-                        }
-                        return 0
-                    }
-                }, { (wgCtxPtr, buf, len) -> Int in
-                    autoreleasepool {
-                        // write_fn: Receive packets from WireGuard and write to the TUN interface
-                        guard let wgCtxPtr = wgCtxPtr else { return 0 }
-                        guard let buf = buf else { return 0 }
-                        guard len > 0 else { return 0 }
-                        let wgContext = wgCtxPtr.bindMemory(to: WireGuardContext.self, capacity: 1).pointee
-                        let ipVersionBits = (buf[0] & 0xf0) >> 4
-                        let ipVersion: sa_family_t? = {
-                            if ipVersionBits == 4 { return sa_family_t(AF_INET) } // IPv4
-                            if ipVersionBits == 6 { return sa_family_t(AF_INET6) } // IPv6
-                            return nil
-                        }()
-                        guard let protocolFamily = ipVersion else { fatalError("Unknown IP version") }
-                        let packet = NEPacket(data: Data(bytes: buf, count: len), protocolFamily: protocolFamily)
-                        var isTunnelClosed = false
-                        let isWritten = wgContext.writePacket(packet: packet, isTunnelClosed: &isTunnelClosed)
-                        if isTunnelClosed { return -1 }
-                        if isWritten {
-                            return len
-                        }
-                        return 0
-                    }
-                },
-                    wgCtxPtr)
-            }
-        }
-    }
-}
-
-class WireGuardContext {
-    private var packetFlow: NEPacketTunnelFlow
-    private var outboundPackets: [NEPacket] = []
-    private var isTunnelClosed: Bool = false
-    private var readPacketCondition = NSCondition()
-
-    init(packetFlow: NEPacketTunnelFlow) {
-        self.packetFlow = packetFlow
-    }
-
-    func closeTunnel() {
-        isTunnelClosed = true
-        readPacketCondition.signal()
-    }
-
-    func packetsRead(packets: [NEPacket]) {
-        readPacketCondition.lock()
-        outboundPackets.append(contentsOf: packets)
-        readPacketCondition.unlock()
-        readPacketCondition.signal()
-    }
-
-    func readPacket(isTunnelClosed: inout Bool) -> NEPacket? {
-        if outboundPackets.isEmpty {
-            readPacketCondition.lock()
-            packetFlow.readPacketObjects(completionHandler: packetsRead)
-            while outboundPackets.isEmpty && !self.isTunnelClosed {
-                readPacketCondition.wait()
-            }
-            readPacketCondition.unlock()
-        }
-        isTunnelClosed = self.isTunnelClosed
-        if !outboundPackets.isEmpty {
-            return outboundPackets.removeFirst()
-        }
-        return nil
-    }
-
-    func writePacket(packet: NEPacket, isTunnelClosed: inout Bool) -> Bool {
-        isTunnelClosed = self.isTunnelClosed
-        return packetFlow.writePacketObjects([packet])
-    }
-}
-
-private func withStringsAsGoStrings<R>(_ str1: String, _ str2: String, closure: (gostring_t, gostring_t) -> R) -> R {
-    return str1.withCString { (s1cStr) -> R in
-        let gstr1 = gostring_t(p: s1cStr, n: str1.utf8.count)
-        return str2.withCString { (s2cStr) -> R in
-            let gstr2 = gostring_t(p: s2cStr, n: str2.utf8.count)
-            return closure(gstr1, gstr2)
-        }
-    }
-}
diff --git a/WireGuardNetworkExtension/WireGuardNetworkExtension-Bridging-Header.h b/WireGuardNetworkExtension/WireGuardNetworkExtension-Bridging-Header.h
deleted file mode 100644
index 8bfc34a..0000000
--- a/WireGuardNetworkExtension/WireGuardNetworkExtension-Bridging-Header.h
+++ /dev/null
@@ -1,6 +0,0 @@
-//
-//  Use this file to import your target's public headers that you would like to expose to Swift.
-//
-
-#import "../wireguard-go-bridge/wireguard.h"
-
diff --git a/WireGuardNetworkExtension/WireGuardNetworkExtension.entitlements b/WireGuardNetworkExtension/WireGuardNetworkExtension.entitlements
deleted file mode 100644
index a4774c6..0000000
--- a/WireGuardNetworkExtension/WireGuardNetworkExtension.entitlements
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>com.apple.developer.networking.networkextension</key>
-	<array>
-		<string>packet-tunnel-provider</string>
-	</array>
-	<key>com.apple.security.application-groups</key>
-	<array>
-		<string>group.com.wireguard.ios</string>
-	</array>
-	<key>keychain-access-groups</key>
-	<array>
-		<string>$(AppIdentifierPrefix)com.wireguard.ios</string>
-	</array>
-</dict>
-</plist>