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@ -4,6 +4,7 @@
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#include <llarp/config/config.hpp>
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#include <llarp/ev/vpn.hpp>
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#include <llarp/util/thread/queue.hpp>
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#include <llarp/util/logging/apple_logger.hpp>
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#include <string>
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@ -11,54 +12,51 @@ namespace llarp::apple
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{
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struct FrameworkContext : public llarp::Context
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{
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explicit FrameworkContext(NEPacketTunnelProvider * tunnel);
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explicit FrameworkContext(NEPacketTunnelProvider* tunnel);
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~FrameworkContext()
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{}
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~FrameworkContext() {}
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std::shared_ptr<vpn::Platform>
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makeVPNPlatform() override;
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void
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Start();
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private:
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NEPacketTunnelProvider * m_Tunnel;
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private:
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NEPacketTunnelProvider* const m_Tunnel;
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std::unique_ptr<std::thread> m_Runner;
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};
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};
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class VPNInterface final : public vpn::NetworkInterface
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{
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NEPacketTunnelProvider * m_Tunnel;
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NEPacketTunnelProvider* const m_Tunnel;
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static inline constexpr auto PacketQueueSize = 1024;
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thread::Queue<net::IPPacket> m_ReadQueue;
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void
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OfferReadPacket(NSData * data)
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OfferReadPacket(NSData* data)
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{
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llarp::net::IPPacket pkt;
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const llarp_buffer_t buf{static_cast<const uint8_t *>(data.bytes), data.length};
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if(pkt.Load(buf))
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const llarp_buffer_t buf{static_cast<const uint8_t*>(data.bytes), data.length};
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if (pkt.Load(buf))
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m_ReadQueue.tryPushBack(std::move(pkt));
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}
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public:
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explicit VPNInterface(NEPacketTunnelProvider * tunnel)
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: m_Tunnel{tunnel},
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m_ReadQueue{PacketQueueSize}
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public:
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explicit VPNInterface(NEPacketTunnelProvider* tunnel)
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: m_Tunnel{tunnel}, m_ReadQueue{PacketQueueSize}
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{
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auto handler =
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[this](NSArray<NSData*> * packets, NSArray<NSNumber*> *)
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auto handler = [this](NSArray<NSData*>* packets, NSArray<NSNumber*>*) {
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NSUInteger num = [packets count];
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for (NSUInteger idx = 0; idx < num; ++idx)
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{
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NSUInteger num = [packets count];
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for(NSUInteger idx = 0; idx < num ; ++idx)
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{
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NSData * pkt = [packets objectAtIndex:idx];
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OfferReadPacket(pkt);
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}
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};
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NSData* pkt = [packets objectAtIndex:idx];
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OfferReadPacket(pkt);
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}
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};
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[m_Tunnel.packetFlow readPacketsWithCompletionHandler:handler];
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}
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@ -73,12 +71,12 @@ namespace llarp::apple
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{
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return "";
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}
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net::IPPacket
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ReadNextPacket() override
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{
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net::IPPacket pkt{};
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if(not m_ReadQueue.empty())
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if (not m_ReadQueue.empty())
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pkt = m_ReadQueue.popFront();
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return pkt;
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}
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@ -87,61 +85,53 @@ namespace llarp::apple
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WritePacket(net::IPPacket pkt) override
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{
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const sa_family_t fam = pkt.IsV6() ? AF_INET6 : AF_INET;
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const uint8_t * pktbuf = pkt.buf;
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const uint8_t* pktbuf = pkt.buf;
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const size_t pktsz = pkt.sz;
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NSData * datapkt = [NSData dataWithBytes:pktbuf length:pktsz];
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NEPacket * npkt = [[NEPacket alloc] initWithData:datapkt protocolFamily:fam];
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NSArray * pkts = @[npkt];
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NSData* datapkt = [NSData dataWithBytes:pktbuf length:pktsz];
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NEPacket* npkt = [[NEPacket alloc] initWithData:datapkt protocolFamily:fam];
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NSArray* pkts = @[npkt];
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return [m_Tunnel.packetFlow writePacketObjects:pkts];
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}
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};
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class VPNPlatform final : public vpn::Platform
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{
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NEPacketTunnelProvider * m_Tunnel;
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public:
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explicit VPNPlatform(NEPacketTunnelProvider * tunnel)
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: m_Tunnel{tunnel}
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{
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}
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std::shared_ptr<vpn::NetworkInterface>
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ObtainInterface(vpn::InterfaceInfo) override
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NEPacketTunnelProvider* const m_Tunnel;
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public:
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explicit VPNPlatform(NEPacketTunnelProvider* tunnel) : m_Tunnel{tunnel}
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{}
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std::shared_ptr<vpn::NetworkInterface> ObtainInterface(vpn::InterfaceInfo) override
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{
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return std::make_shared<VPNInterface>(m_Tunnel);
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}
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};
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FrameworkContext::FrameworkContext(NEPacketTunnelProvider * tunnel) :
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llarp::Context{},
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m_Tunnel{tunnel}
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{
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}
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FrameworkContext::FrameworkContext(NEPacketTunnelProvider* tunnel)
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: llarp::Context{}, m_Tunnel{tunnel}
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{}
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void
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FrameworkContext::Start()
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{
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std::promise<void> result;
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m_Runner = std::make_unique<std::thread>(
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[&result, this]()
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m_Runner = std::make_unique<std::thread>([&result, this]() {
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const RuntimeOptions opts{};
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try
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{
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const RuntimeOptions opts{};
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try
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{
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Setup(opts);
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Configure(llarp::Config::NetworkExtensionConfig());
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}
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catch(std::exception & )
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{
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result.set_exception(std::current_exception());
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return;
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}
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result.set_value();
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Run(opts);
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});
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Setup(opts);
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Configure(llarp::Config::NetworkExtensionConfig());
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}
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catch (std::exception&)
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{
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result.set_exception(std::current_exception());
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return;
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}
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result.set_value();
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Run(opts);
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});
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auto ftr = result.get_future();
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ftr.get();
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@ -154,13 +144,13 @@ namespace llarp::apple
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}
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}
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struct ContextWrapper
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{
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std::shared_ptr<llarp::apple::FrameworkContext> m_Context;
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public:
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explicit ContextWrapper(NEPacketTunnelProvider * tunnel) :
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m_Context{std::make_shared<llarp::apple::FrameworkContext>(tunnel)}
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std::unique_ptr<llarp::apple::FrameworkContext> m_Context;
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public:
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explicit ContextWrapper(NEPacketTunnelProvider* tunnel)
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: m_Context{std::make_unique<llarp::apple::FrameworkContext>(tunnel)}
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{}
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void
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@ -176,20 +166,35 @@ public:
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m_Context->Wait();
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}
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};
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static std::string_view
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DataAsStringView(NSData* data)
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{
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return std::string_view{reinterpret_cast<const char*>(data.bytes), data.length};
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}
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static NSData*
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StringViewToData(std::string_view data)
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{
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const char* ptr = data.data();
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const size_t sz = data.size();
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return [NSData dataWithBytes:ptr length:sz];
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}
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@implementation LLARPPacketTunnel
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- (void)startTunnelWithOptions:(NSDictionary<NSString *,NSObject *> *)options completionHandler:(void (^)(NSError *error))completionHandler {
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- (void)startTunnelWithOptions:(NSDictionary<NSString*, NSObject*>*)options
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completionHandler:(void (^)(NSError*))completionHandler
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{
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m_Context = new ContextWrapper{self};
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m_Context->Start();
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completionHandler(nullptr);
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[self setTunnelNetworkSettings:nullptr completionHandler:completionHandler];
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}
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- (void)stopTunnelWithReason:(NEProviderStopReason)reason
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completionHandler:(void (^)(void))completionHandler {
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if(m_Context)
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- (void)stopTunnelWithReason:(NEProviderStopReason)reason
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completionHandler:(void (^)(void))completionHandler
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{
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if (m_Context)
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{
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m_Context->Stop();
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delete m_Context;
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@ -198,5 +203,13 @@ completionHandler:(void (^)(void))completionHandler {
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completionHandler();
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}
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- (void)handleAppMessage:(NSData*)messageData
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completionHandler:(void (^)(NSData* responseData))completionHandler
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{
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const auto data = DataAsStringView(messageData);
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LogInfo("app message: ", data);
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completionHandler(StringViewToData("ok"));
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}
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@end
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jeff
3 years ago
committed by
Jeff Becker