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https://github.com/yuzu-emu/yuzu.git
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Merge pull request #2831 from Subv/uds_auth
Services/UDS: Handle beacon frames and the basic AP connection sequence frames.
This commit is contained in:
commit
617b6974b9
@ -145,6 +145,7 @@ set(SRCS
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hle/service/nwm/nwm_tst.cpp
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hle/service/nwm/nwm_tst.cpp
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hle/service/nwm/nwm_uds.cpp
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hle/service/nwm/nwm_uds.cpp
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hle/service/nwm/uds_beacon.cpp
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hle/service/nwm/uds_beacon.cpp
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hle/service/nwm/uds_connection.cpp
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hle/service/nwm/uds_data.cpp
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hle/service/nwm/uds_data.cpp
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hle/service/pm_app.cpp
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hle/service/pm_app.cpp
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hle/service/ptm/ptm.cpp
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hle/service/ptm/ptm.cpp
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@ -344,6 +345,7 @@ set(HEADERS
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hle/service/nwm/nwm_tst.h
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hle/service/nwm/nwm_tst.h
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hle/service/nwm/nwm_uds.h
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hle/service/nwm/nwm_uds.h
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hle/service/nwm/uds_beacon.h
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hle/service/nwm/uds_beacon.h
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hle/service/nwm/uds_connection.h
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hle/service/nwm/uds_data.h
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hle/service/nwm/uds_data.h
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hle/service/pm_app.h
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hle/service/pm_app.h
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hle/service/ptm/ptm.h
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hle/service/ptm/ptm.h
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@ -4,6 +4,7 @@
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#include <array>
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#include <array>
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#include <cstring>
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#include <cstring>
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#include <mutex>
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#include <unordered_map>
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#include <unordered_map>
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#include <vector>
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#include <vector>
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#include "common/common_types.h"
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#include "common/common_types.h"
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@ -15,8 +16,10 @@
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#include "core/hle/result.h"
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#include "core/hle/result.h"
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#include "core/hle/service/nwm/nwm_uds.h"
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#include "core/hle/service/nwm/nwm_uds.h"
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#include "core/hle/service/nwm/uds_beacon.h"
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#include "core/hle/service/nwm/uds_beacon.h"
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#include "core/hle/service/nwm/uds_connection.h"
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#include "core/hle/service/nwm/uds_data.h"
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#include "core/hle/service/nwm/uds_data.h"
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#include "core/memory.h"
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#include "core/memory.h"
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#include "network/network.h"
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namespace Service {
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namespace Service {
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namespace NWM {
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namespace NWM {
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@ -51,6 +54,135 @@ static NetworkInfo network_info;
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// Event that will generate and send the 802.11 beacon frames.
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// Event that will generate and send the 802.11 beacon frames.
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static int beacon_broadcast_event;
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static int beacon_broadcast_event;
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// Mutex to synchronize access to the list of received beacons between the emulation thread and the
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// network thread.
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static std::mutex beacon_mutex;
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// Number of beacons to store before we start dropping the old ones.
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// TODO(Subv): Find a more accurate value for this limit.
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constexpr size_t MaxBeaconFrames = 15;
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// List of the last <MaxBeaconFrames> beacons received from the network.
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static std::deque<Network::WifiPacket> received_beacons;
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/**
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* Returns a list of received 802.11 beacon frames from the specified sender since the last call.
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*/
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std::deque<Network::WifiPacket> GetReceivedBeacons(const MacAddress& sender) {
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std::lock_guard<std::mutex> lock(beacon_mutex);
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// TODO(Subv): Filter by sender.
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return std::move(received_beacons);
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}
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/// Sends a WifiPacket to the room we're currently connected to.
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void SendPacket(Network::WifiPacket& packet) {
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// TODO(Subv): Implement.
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}
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// Inserts the received beacon frame in the beacon queue and removes any older beacons if the size
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// limit is exceeded.
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void HandleBeaconFrame(const Network::WifiPacket& packet) {
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std::lock_guard<std::mutex> lock(beacon_mutex);
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received_beacons.emplace_back(packet);
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// Discard old beacons if the buffer is full.
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if (received_beacons.size() > MaxBeaconFrames)
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received_beacons.pop_front();
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}
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/*
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* Returns an available index in the nodes array for the
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* currently-hosted UDS network.
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*/
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static u16 GetNextAvailableNodeId() {
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ASSERT_MSG(connection_status.status == static_cast<u32>(NetworkStatus::ConnectedAsHost),
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"Can not accept clients if we're not hosting a network");
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for (u16 index = 0; index < connection_status.max_nodes; ++index) {
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if ((connection_status.node_bitmask & (1 << index)) == 0)
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return index;
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}
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// Any connection attempts to an already full network should have been refused.
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ASSERT_MSG(false, "No available connection slots in the network");
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}
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/*
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* Start a connection sequence with an UDS server. The sequence starts by sending an 802.11
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* authentication frame with SEQ1.
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*/
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void StartConnectionSequence(const MacAddress& server) {
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ASSERT(connection_status.status == static_cast<u32>(NetworkStatus::NotConnected));
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// TODO(Subv): Handle timeout.
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// Send an authentication frame with SEQ1
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using Network::WifiPacket;
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WifiPacket auth_request;
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auth_request.channel = network_channel;
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auth_request.data = GenerateAuthenticationFrame(AuthenticationSeq::SEQ1);
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auth_request.destination_address = server;
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auth_request.type = WifiPacket::PacketType::Authentication;
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SendPacket(auth_request);
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}
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/// Sends an Association Response frame to the specified mac address
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void SendAssociationResponseFrame(const MacAddress& address) {
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ASSERT_MSG(connection_status.status == static_cast<u32>(NetworkStatus::ConnectedAsHost));
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using Network::WifiPacket;
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WifiPacket assoc_response;
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assoc_response.channel = network_channel;
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// TODO(Subv): This will cause multiple clients to end up with the same association id, but
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// we're not using that for anything.
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u16 association_id = 1;
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assoc_response.data = GenerateAssocResponseFrame(AssocStatus::Successful, association_id,
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network_info.network_id);
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assoc_response.destination_address = address;
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assoc_response.type = WifiPacket::PacketType::AssociationResponse;
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SendPacket(assoc_response);
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}
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/*
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* Handles the authentication request frame and sends the authentication response and association
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* response frames. Once an Authentication frame with SEQ1 is received by the server, it responds
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* with an Authentication frame containing SEQ2, and immediately sends an Association response frame
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* containing the details of the access point and the assigned association id for the new client.
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*/
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void HandleAuthenticationFrame(const Network::WifiPacket& packet) {
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// Only the SEQ1 auth frame is handled here, the SEQ2 frame doesn't need any special behavior
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if (GetAuthenticationSeqNumber(packet.data) == AuthenticationSeq::SEQ1) {
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ASSERT_MSG(connection_status.status == static_cast<u32>(NetworkStatus::ConnectedAsHost));
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// Respond with an authentication response frame with SEQ2
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using Network::WifiPacket;
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WifiPacket auth_request;
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auth_request.channel = network_channel;
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auth_request.data = GenerateAuthenticationFrame(AuthenticationSeq::SEQ2);
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auth_request.destination_address = packet.transmitter_address;
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auth_request.type = WifiPacket::PacketType::Authentication;
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SendPacket(auth_request);
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SendAssociationResponseFrame(packet.transmitter_address);
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}
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}
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/// Callback to parse and handle a received wifi packet.
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void OnWifiPacketReceived(const Network::WifiPacket& packet) {
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switch (packet.type) {
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case Network::WifiPacket::PacketType::Beacon:
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HandleBeaconFrame(packet);
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break;
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case Network::WifiPacket::PacketType::Authentication:
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HandleAuthenticationFrame(packet);
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break;
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}
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}
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/**
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/**
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* NWM_UDS::Shutdown service function
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* NWM_UDS::Shutdown service function
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* Inputs:
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* Inputs:
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@ -111,8 +243,7 @@ static void RecvBeaconBroadcastData(Interface* self) {
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u32 total_size = sizeof(BeaconDataReplyHeader);
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u32 total_size = sizeof(BeaconDataReplyHeader);
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// Retrieve all beacon frames that were received from the desired mac address.
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// Retrieve all beacon frames that were received from the desired mac address.
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std::deque<WifiPacket> beacons =
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auto beacons = GetReceivedBeacons(mac_address);
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GetReceivedPackets(WifiPacket::PacketType::Beacon, mac_address);
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BeaconDataReplyHeader data_reply_header{};
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BeaconDataReplyHeader data_reply_header{};
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data_reply_header.total_entries = beacons.size();
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data_reply_header.total_entries = beacons.size();
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@ -193,6 +324,9 @@ static void InitializeWithVersion(Interface* self) {
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rb.Push(RESULT_SUCCESS);
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rb.Push(RESULT_SUCCESS);
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rb.PushCopyHandles(Kernel::g_handle_table.Create(connection_status_event).Unwrap());
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rb.PushCopyHandles(Kernel::g_handle_table.Create(connection_status_event).Unwrap());
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// TODO(Subv): Connect the OnWifiPacketReceived function to the wifi packet received callback of
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// the room we're currently in.
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LOG_DEBUG(Service_NWM, "called sharedmem_size=0x%08X, version=0x%08X, sharedmem_handle=0x%08X",
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LOG_DEBUG(Service_NWM, "called sharedmem_size=0x%08X, version=0x%08X, sharedmem_handle=0x%08X",
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sharedmem_size, version, sharedmem_handle);
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sharedmem_size, version, sharedmem_handle);
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}
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}
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@ -610,31 +744,22 @@ static void BeaconBroadcastCallback(u64 userdata, int cycles_late) {
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if (connection_status.status != static_cast<u32>(NetworkStatus::ConnectedAsHost))
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if (connection_status.status != static_cast<u32>(NetworkStatus::ConnectedAsHost))
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return;
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return;
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// TODO(Subv): Actually send the beacon.
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std::vector<u8> frame = GenerateBeaconFrame(network_info, node_info);
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std::vector<u8> frame = GenerateBeaconFrame(network_info, node_info);
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using Network::WifiPacket;
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WifiPacket packet;
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packet.type = WifiPacket::PacketType::Beacon;
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packet.data = std::move(frame);
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packet.destination_address = Network::BroadcastMac;
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packet.channel = network_channel;
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SendPacket(packet);
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// Start broadcasting the network, send a beacon frame every 102.4ms.
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// Start broadcasting the network, send a beacon frame every 102.4ms.
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CoreTiming::ScheduleEvent(msToCycles(DefaultBeaconInterval * MillisecondsPerTU) - cycles_late,
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CoreTiming::ScheduleEvent(msToCycles(DefaultBeaconInterval * MillisecondsPerTU) - cycles_late,
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beacon_broadcast_event, 0);
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beacon_broadcast_event, 0);
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}
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}
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/*
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* Returns an available index in the nodes array for the
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* currently-hosted UDS network.
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*/
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static u32 GetNextAvailableNodeId() {
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ASSERT_MSG(connection_status.status == static_cast<u32>(NetworkStatus::ConnectedAsHost),
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"Can not accept clients if we're not hosting a network");
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for (unsigned index = 0; index < connection_status.max_nodes; ++index) {
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if ((connection_status.node_bitmask & (1 << index)) == 0)
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return index;
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}
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// Any connection attempts to an already full network should have been refused.
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ASSERT_MSG(false, "No available connection slots in the network");
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}
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/*
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/*
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* Called when a client connects to an UDS network we're hosting,
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* Called when a client connects to an UDS network we're hosting,
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* updates the connection status and signals the update event.
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* updates the connection status and signals the update event.
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@ -42,6 +42,7 @@ using NodeList = std::vector<NodeInfo>;
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enum class NetworkStatus {
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enum class NetworkStatus {
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NotConnected = 3,
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NotConnected = 3,
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ConnectedAsHost = 6,
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ConnectedAsHost = 6,
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Connecting = 7,
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ConnectedAsClient = 9,
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ConnectedAsClient = 9,
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ConnectedAsSpectator = 10,
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ConnectedAsSpectator = 10,
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};
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};
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@ -85,6 +86,17 @@ static_assert(offsetof(NetworkInfo, oui_value) == 0xC, "oui_value is at the wron
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static_assert(offsetof(NetworkInfo, wlan_comm_id) == 0x10, "wlancommid is at the wrong offset.");
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static_assert(offsetof(NetworkInfo, wlan_comm_id) == 0x10, "wlancommid is at the wrong offset.");
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static_assert(sizeof(NetworkInfo) == 0x108, "NetworkInfo has incorrect size.");
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static_assert(sizeof(NetworkInfo) == 0x108, "NetworkInfo has incorrect size.");
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/// Additional block tag ids in the Beacon and Association Response frames
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enum class TagId : u8 {
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SSID = 0,
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SupportedRates = 1,
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DSParameterSet = 2,
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TrafficIndicationMap = 5,
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CountryInformation = 7,
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ERPInformation = 42,
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VendorSpecific = 221
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};
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class NWM_UDS final : public Interface {
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class NWM_UDS final : public Interface {
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public:
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public:
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NWM_UDS();
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NWM_UDS();
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@ -325,8 +325,5 @@ std::vector<u8> GenerateBeaconFrame(const NetworkInfo& network_info, const NodeL
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return buffer;
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return buffer;
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}
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}
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std::deque<WifiPacket> GetReceivedPackets(WifiPacket::PacketType type, const MacAddress& sender) {
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return {};
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}
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} // namespace NWM
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} // namespace NWM
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} // namespace Service
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} // namespace Service
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@ -17,17 +17,6 @@ namespace NWM {
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using MacAddress = std::array<u8, 6>;
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using MacAddress = std::array<u8, 6>;
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constexpr std::array<u8, 3> NintendoOUI = {0x00, 0x1F, 0x32};
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constexpr std::array<u8, 3> NintendoOUI = {0x00, 0x1F, 0x32};
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/// Additional block tag ids in the Beacon frames
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enum class TagId : u8 {
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SSID = 0,
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SupportedRates = 1,
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DSParameterSet = 2,
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TrafficIndicationMap = 5,
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|
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CountryInformation = 7,
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|
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ERPInformation = 42,
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VendorSpecific = 221
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};
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/**
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/**
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* Internal vendor-specific tag ids as stored inside
|
* Internal vendor-specific tag ids as stored inside
|
||||||
* VendorSpecific blocks in the Beacon frames.
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* VendorSpecific blocks in the Beacon frames.
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@ -135,20 +124,6 @@ struct BeaconData {
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static_assert(sizeof(BeaconData) == 0x12, "BeaconData has incorrect size.");
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static_assert(sizeof(BeaconData) == 0x12, "BeaconData has incorrect size.");
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/// Information about a received WiFi packet.
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|
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/// Acts as our own 802.11 header.
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struct WifiPacket {
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enum class PacketType { Beacon, Data };
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|
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PacketType type; ///< The type of 802.11 frame, Beacon / Data.
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|
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|
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/// Raw 802.11 frame data, starting at the management frame header for management frames.
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|
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std::vector<u8> data;
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|
||||||
MacAddress transmitter_address; ///< Mac address of the transmitter.
|
|
||||||
MacAddress destination_address; ///< Mac address of the receiver.
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|
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u8 channel; ///< WiFi channel where this frame was transmitted.
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|
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};
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|
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|
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/**
|
/**
|
||||||
* Decrypts the beacon data buffer for the network described by `network_info`.
|
* Decrypts the beacon data buffer for the network described by `network_info`.
|
||||||
*/
|
*/
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@ -161,10 +136,5 @@ void DecryptBeaconData(const NetworkInfo& network_info, std::vector<u8>& buffer)
|
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*/
|
*/
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std::vector<u8> GenerateBeaconFrame(const NetworkInfo& network_info, const NodeList& nodes);
|
std::vector<u8> GenerateBeaconFrame(const NetworkInfo& network_info, const NodeList& nodes);
|
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|
|
||||||
/**
|
|
||||||
* Returns a list of received 802.11 frames from the specified sender
|
|
||||||
* matching the type since the last call.
|
|
||||||
*/
|
|
||||||
std::deque<WifiPacket> GetReceivedPackets(WifiPacket::PacketType type, const MacAddress& sender);
|
|
||||||
} // namespace NWM
|
} // namespace NWM
|
||||||
} // namespace Service
|
} // namespace Service
|
||||||
|
79
src/core/hle/service/nwm/uds_connection.cpp
Normal file
79
src/core/hle/service/nwm/uds_connection.cpp
Normal file
@ -0,0 +1,79 @@
|
|||||||
|
// Copyright 2017 Citra Emulator Project
|
||||||
|
// Licensed under GPLv2 or any later version
|
||||||
|
// Refer to the license.txt file included.
|
||||||
|
|
||||||
|
#include "core/hle/service/nwm/nwm_uds.h"
|
||||||
|
#include "core/hle/service/nwm/uds_connection.h"
|
||||||
|
#include "fmt/format.h"
|
||||||
|
|
||||||
|
namespace Service {
|
||||||
|
namespace NWM {
|
||||||
|
|
||||||
|
// Note: These values were taken from a packet capture of an o3DS XL
|
||||||
|
// broadcasting a Super Smash Bros. 4 lobby.
|
||||||
|
constexpr u16 DefaultExtraCapabilities = 0x0431;
|
||||||
|
|
||||||
|
std::vector<u8> GenerateAuthenticationFrame(AuthenticationSeq seq) {
|
||||||
|
AuthenticationFrame frame{};
|
||||||
|
frame.auth_seq = static_cast<u16>(seq);
|
||||||
|
|
||||||
|
std::vector<u8> data(sizeof(frame));
|
||||||
|
std::memcpy(data.data(), &frame, sizeof(frame));
|
||||||
|
|
||||||
|
return data;
|
||||||
|
}
|
||||||
|
|
||||||
|
AuthenticationSeq GetAuthenticationSeqNumber(const std::vector<u8>& body) {
|
||||||
|
AuthenticationFrame frame;
|
||||||
|
std::memcpy(&frame, body.data(), sizeof(frame));
|
||||||
|
|
||||||
|
return static_cast<AuthenticationSeq>(frame.auth_seq);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Generates an SSID tag of an 802.11 Beacon frame with an 8-byte character representation of the
|
||||||
|
* specified network id as the SSID value.
|
||||||
|
* @param network_id The network id to use.
|
||||||
|
* @returns A buffer with the SSID tag.
|
||||||
|
*/
|
||||||
|
static std::vector<u8> GenerateSSIDTag(u32 network_id) {
|
||||||
|
constexpr u8 SSIDSize = 8;
|
||||||
|
|
||||||
|
struct {
|
||||||
|
u8 id = static_cast<u8>(TagId::SSID);
|
||||||
|
u8 size = SSIDSize;
|
||||||
|
} tag_header;
|
||||||
|
|
||||||
|
std::vector<u8> buffer(sizeof(tag_header) + SSIDSize);
|
||||||
|
|
||||||
|
std::memcpy(buffer.data(), &tag_header, sizeof(tag_header));
|
||||||
|
|
||||||
|
std::string network_name = fmt::format("{0:08X}", network_id);
|
||||||
|
|
||||||
|
std::memcpy(buffer.data() + sizeof(tag_header), network_name.c_str(), SSIDSize);
|
||||||
|
|
||||||
|
return buffer;
|
||||||
|
}
|
||||||
|
|
||||||
|
std::vector<u8> GenerateAssocResponseFrame(AssocStatus status, u16 association_id, u32 network_id) {
|
||||||
|
AssociationResponseFrame frame{};
|
||||||
|
frame.capabilities = DefaultExtraCapabilities;
|
||||||
|
frame.status_code = static_cast<u16>(status);
|
||||||
|
// The association id is ORed with this magic value (0xC000)
|
||||||
|
constexpr u16 AssociationIdMagic = 0xC000;
|
||||||
|
frame.assoc_id = association_id | AssociationIdMagic;
|
||||||
|
|
||||||
|
std::vector<u8> data(sizeof(frame));
|
||||||
|
std::memcpy(data.data(), &frame, sizeof(frame));
|
||||||
|
|
||||||
|
auto ssid_tag = GenerateSSIDTag(network_id);
|
||||||
|
data.insert(data.end(), ssid_tag.begin(), ssid_tag.end());
|
||||||
|
|
||||||
|
// TODO(Subv): Add the SupportedRates tag.
|
||||||
|
// TODO(Subv): Add the DSParameterSet tag.
|
||||||
|
// TODO(Subv): Add the ERPInformation tag.
|
||||||
|
return data;
|
||||||
|
}
|
||||||
|
|
||||||
|
} // namespace NWM
|
||||||
|
} // namespace Service
|
51
src/core/hle/service/nwm/uds_connection.h
Normal file
51
src/core/hle/service/nwm/uds_connection.h
Normal file
@ -0,0 +1,51 @@
|
|||||||
|
// Copyright 2017 Citra Emulator Project
|
||||||
|
// Licensed under GPLv2 or any later version
|
||||||
|
// Refer to the license.txt file included.
|
||||||
|
|
||||||
|
#pragma once
|
||||||
|
|
||||||
|
#include <vector>
|
||||||
|
#include "common/common_types.h"
|
||||||
|
#include "common/swap.h"
|
||||||
|
#include "core/hle/service/service.h"
|
||||||
|
|
||||||
|
namespace Service {
|
||||||
|
namespace NWM {
|
||||||
|
|
||||||
|
/// Sequence number of the 802.11 authentication frames.
|
||||||
|
enum class AuthenticationSeq : u16 { SEQ1 = 1, SEQ2 = 2 };
|
||||||
|
|
||||||
|
enum class AuthAlgorithm : u16 { OpenSystem = 0 };
|
||||||
|
|
||||||
|
enum class AuthStatus : u16 { Successful = 0 };
|
||||||
|
|
||||||
|
enum class AssocStatus : u16 { Successful = 0 };
|
||||||
|
|
||||||
|
struct AuthenticationFrame {
|
||||||
|
u16_le auth_algorithm = static_cast<u16>(AuthAlgorithm::OpenSystem);
|
||||||
|
u16_le auth_seq;
|
||||||
|
u16_le status_code = static_cast<u16>(AuthStatus::Successful);
|
||||||
|
};
|
||||||
|
|
||||||
|
static_assert(sizeof(AuthenticationFrame) == 6, "AuthenticationFrame has wrong size");
|
||||||
|
|
||||||
|
struct AssociationResponseFrame {
|
||||||
|
u16_le capabilities;
|
||||||
|
u16_le status_code;
|
||||||
|
u16_le assoc_id;
|
||||||
|
};
|
||||||
|
|
||||||
|
static_assert(sizeof(AssociationResponseFrame) == 6, "AssociationResponseFrame has wrong size");
|
||||||
|
|
||||||
|
/// Generates an 802.11 authentication frame, starting at the frame body.
|
||||||
|
std::vector<u8> GenerateAuthenticationFrame(AuthenticationSeq seq);
|
||||||
|
|
||||||
|
/// Returns the sequence number from the body of an Authentication frame.
|
||||||
|
AuthenticationSeq GetAuthenticationSeqNumber(const std::vector<u8>& body);
|
||||||
|
|
||||||
|
/// Generates an 802.11 association response frame with the specified status, association id and
|
||||||
|
/// network id, starting at the frame body.
|
||||||
|
std::vector<u8> GenerateAssocResponseFrame(AssocStatus status, u16 association_id, u32 network_id);
|
||||||
|
|
||||||
|
} // namespace NWM
|
||||||
|
} // namespace Service
|
Loading…
Reference in New Issue
Block a user