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author | Jeroen Leenarts <jeroen.leenarts@gmail.com> | 2018-07-07 22:54:44 +0200 |
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committer | Jeroen Leenarts <jeroen.leenarts@gmail.com> | 2018-07-07 22:54:44 +0200 |
commit | b7cf84b7fa12d0d82bb45653b68747061e7e2f82 (patch) | |
tree | 50e9d1accdc3fe5ab37422c8834891dd340ea9ae /WireGuardNetworkExtension | |
parent | Fix bizarre name (diff) | |
download | wireguard-apple-b7cf84b7fa12d0d82bb45653b68747061e7e2f82.tar.xz wireguard-apple-b7cf84b7fa12d0d82bb45653b68747061e7e2f82.zip |
Start wire-up of logging and tunnel system.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Diffstat (limited to 'WireGuardNetworkExtension')
-rw-r--r-- | WireGuardNetworkExtension/Log.swift | 13 | ||||
-rw-r--r-- | WireGuardNetworkExtension/PacketTunnelProvider.swift | 34 | ||||
-rw-r--r-- | WireGuardNetworkExtension/WireGuardGoWrapper.m | 25 |
3 files changed, 67 insertions, 5 deletions
diff --git a/WireGuardNetworkExtension/Log.swift b/WireGuardNetworkExtension/Log.swift new file mode 100644 index 0000000..358874c --- /dev/null +++ b/WireGuardNetworkExtension/Log.swift @@ -0,0 +1,13 @@ +// +// Log.swift +// WireGuardNetworkExtension +// +// Created by Jeroen Leenarts on 07-07-18. +// Copyright © 2018 WireGuard. All rights reserved. +// + +import os.log + +struct Log { + static var general = OSLog(subsystem: "com.wireguard.ios.WireGuard.WireGuardNetworkExtension", category: "general") +} diff --git a/WireGuardNetworkExtension/PacketTunnelProvider.swift b/WireGuardNetworkExtension/PacketTunnelProvider.swift index 07fd8d3..14ddbb8 100644 --- a/WireGuardNetworkExtension/PacketTunnelProvider.swift +++ b/WireGuardNetworkExtension/PacketTunnelProvider.swift @@ -7,16 +7,31 @@ // import NetworkExtension +import os.log class PacketTunnelProvider: NEPacketTunnelProvider { + let wireGuardWrapper = WireGuardGoWrapper() + + private let tunnelQueue = DispatchQueue(label: PacketTunnelProvider.description()) + + //TODO create a way to transfer config into extension override func startTunnel(options: [String: NSObject]?, completionHandler: @escaping (Error?) -> Void) { + os_log("Starting tunnel", log: Log.general, type: .info) // Add code here to start the process of connecting the tunnel. + //TODO get a settings string in here. + tunnelQueue.sync { + wireGuardWrapper.turnOn(withInterfaceName: "TODO", settingsString: "TODO") + } } override func stopTunnel(with reason: NEProviderStopReason, completionHandler: @escaping () -> Void) { + os_log("Stopping tunnel", log: Log.general, type: .info) // Add code here to start the process of stopping the tunnel. + tunnelQueue.sync { + wireGuardWrapper.turnOff() + } completionHandler() } @@ -27,12 +42,21 @@ class PacketTunnelProvider: NEPacketTunnelProvider { } } - override func sleep(completionHandler: @escaping () -> Void) { - // Add code here to get ready to sleep. - completionHandler() + private func loopReadPackets(_ handler: @escaping ([Data]?, Error?) -> Void) { + packetFlow.readPackets { [weak self] (_, _) in + // TODO write packets into the tunnel + self?.loopReadPackets(handler) + } + } + + func writePacket(_ packet: Data, completionHandler: ((Error?) -> Void)?) { + packetFlow.writePackets([packet], withProtocols: [AF_INET] as [NSNumber]) + completionHandler?(nil) } - override func wake() { - // Add code here to wake up. + func writePackets(_ packets: [Data], completionHandler: ((Error?) -> Void)?) { + let protocols = [Int32](repeating: AF_INET, count: packets.count) as [NSNumber] + packetFlow.writePackets(packets, withProtocols: protocols) + completionHandler?(nil) } } diff --git a/WireGuardNetworkExtension/WireGuardGoWrapper.m b/WireGuardNetworkExtension/WireGuardGoWrapper.m index 4244fe9..0b854f1 100644 --- a/WireGuardNetworkExtension/WireGuardGoWrapper.m +++ b/WireGuardNetworkExtension/WireGuardGoWrapper.m @@ -8,12 +8,17 @@ #import "WireGuardGoWrapper.h" +#include <os/log.h> #include "wireguard.h" /// Trampoline function static ssize_t do_read(const void *ctx, const unsigned char *buf, size_t len); /// Trampoline function static ssize_t do_write(const void *ctx, const unsigned char *buf, size_t len); +/// Trampoline function +static void do_log(int level, const char *tag, const char *msg); + + @interface WireGuardGoWrapper () @@ -26,6 +31,9 @@ static ssize_t do_write(const void *ctx, const unsigned char *buf, size_t len); - (void) turnOnWithInterfaceName: (NSString *)interfaceName settingsString: (NSString *)settingsString { + + wgSetLogger(do_log); + const char * ifName = [interfaceName UTF8String]; const char * settings = [settingsString UTF8String]; @@ -38,6 +46,16 @@ static ssize_t do_write(const void *ctx, const unsigned char *buf, size_t len); wgTurnOff(self.handle); } ++ (os_log_t)log { + static os_log_t subLog = nil; + static dispatch_once_t onceToken; + dispatch_once(&onceToken, ^{ + subLog = os_log_create("com.wireguard.ios.WireGuard.WireGuardNetworkExtension", "WireGuard-Go"); + }); + + return subLog; +} + @end static ssize_t do_read(const void *ctx, const unsigned char *buf, size_t len) @@ -45,6 +63,7 @@ static ssize_t do_read(const void *ctx, const unsigned char *buf, size_t len) WireGuardGoWrapper *wrapper = (__bridge WireGuardGoWrapper *)ctx; printf("Reading from instance with ctx %p into buffer %p of length %zu\n", ctx, buf, len); sleep(1); + // TODO received data from tunnel, write to Packetflow return wrapper.isClosed ? -1 : 0; } @@ -54,3 +73,9 @@ static ssize_t do_write(const void *ctx, const unsigned char *buf, size_t len) printf("Writing from instance with ctx %p into buffer %p of length %zu\n", ctx, buf, len); return len; } + +static void do_log(int level, const char *tag, const char *msg) +{ + // TODO Get some details on the log level and distribute to matching log levels. + os_log([WireGuardGoWrapper log], "Log level %d for %s: %s", level, tag, msg); +} |