1 files changed, 0 insertions, 373 deletions
diff --git a/src/core/hle/service/nwm/uds_data.cpp b/src/core/hle/service/nwm/uds_data.cpp
deleted file mode 100644
index 4b389710f..000000000
--- a/src/core/hle/service/nwm/uds_data.cpp
+++ /dev/null
@@ -1,373 +0,0 @@
-// Copyright 2017 Citra Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <algorithm>
-#include <cstring>
-#include <cryptopp/aes.h>
-#include <cryptopp/ccm.h>
-#include <cryptopp/filters.h>
-#include <cryptopp/md5.h>
-#include <cryptopp/modes.h>
-#include "core/hle/service/nwm/nwm_uds.h"
-#include "core/hle/service/nwm/uds_data.h"
-#include "core/hw/aes/key.h"
-
-namespace Service {
-namespace NWM {
-
-using MacAddress = std::array<u8, 6>;
-
-/*
- * Generates a SNAP-enabled 802.2 LLC header for the specified protocol.
- * @returns a buffer with the bytes of the generated header.
- */
-static std::vector<u8> GenerateLLCHeader(EtherType protocol) {
-    LLCHeader header{};
-    header.protocol = static_cast<u16>(protocol);
-
-    std::vector<u8> buffer(sizeof(header));
-    memcpy(buffer.data(), &header, sizeof(header));
-
-    return buffer;
-}
-
-/*
- * Generates a Nintendo UDS SecureData header with the specified parameters.
- * @returns a buffer with the bytes of the generated header.
- */
-static std::vector<u8> GenerateSecureDataHeader(u16 data_size, u8 channel, u16 dest_node_id,
-                                                u16 src_node_id, u16 sequence_number) {
-    SecureDataHeader header{};
-    header.protocol_size = data_size + sizeof(SecureDataHeader);
-    // Note: This size includes everything except the first 4 bytes of the structure,
-    // reinforcing the hypotheses that the first 4 bytes are actually the header of
-    // another container protocol.
-    header.securedata_size = data_size + sizeof(SecureDataHeader) - 4;
-    // Frames sent by the emulated application are never UDS management frames
-    header.is_management = 0;
-    header.data_channel = channel;
-    header.sequence_number = sequence_number;
-    header.dest_node_id = dest_node_id;
-    header.src_node_id = src_node_id;
-
-    std::vector<u8> buffer(sizeof(header));
-    memcpy(buffer.data(), &header, sizeof(header));
-
-    return buffer;
-}
-
-/*
- * Calculates the CTR used for the AES-CTR process that calculates
- * the CCMP crypto key for data frames.
- * @returns The CTR used for data frames crypto key generation.
- */
-static std::array<u8, CryptoPP::MD5::DIGESTSIZE> GetDataCryptoCTR(const NetworkInfo& network_info) {
-    DataFrameCryptoCTR data{};
-
-    data.host_mac = network_info.host_mac_address;
-    data.wlan_comm_id = network_info.wlan_comm_id;
-    data.id = network_info.id;
-    data.network_id = network_info.network_id;
-
-    std::array<u8, CryptoPP::MD5::DIGESTSIZE> hash;
-    CryptoPP::MD5().CalculateDigest(hash.data(), reinterpret_cast<u8*>(&data), sizeof(data));
-
-    return hash;
-}
-
-/*
- * Generates the key used for encrypting the 802.11 data frames generated by UDS.
- * @returns The key used for data frames crypto.
- */
-static std::array<u8, CryptoPP::AES::BLOCKSIZE> GenerateDataCCMPKey(
-    const std::vector<u8>& passphrase, const NetworkInfo& network_info) {
-    // Calculate the MD5 hash of the input passphrase.
-    std::array<u8, CryptoPP::MD5::DIGESTSIZE> passphrase_hash;
-    CryptoPP::MD5().CalculateDigest(passphrase_hash.data(), passphrase.data(), passphrase.size());
-
-    std::array<u8, CryptoPP::AES::BLOCKSIZE> ccmp_key;
-
-    // The CCMP key is the result of encrypting the MD5 hash of the passphrase with AES-CTR using
-    // keyslot 0x2D.
-    using CryptoPP::AES;
-    std::array<u8, CryptoPP::MD5::DIGESTSIZE> counter = GetDataCryptoCTR(network_info);
-    std::array<u8, AES::BLOCKSIZE> key = HW::AES::GetNormalKey(HW::AES::KeySlotID::UDSDataKey);
-    CryptoPP::CTR_Mode<AES>::Encryption aes;
-    aes.SetKeyWithIV(key.data(), AES::BLOCKSIZE, counter.data());
-    aes.ProcessData(ccmp_key.data(), passphrase_hash.data(), passphrase_hash.size());
-
-    return ccmp_key;
-}
-
-/*
- * Generates the Additional Authenticated Data (AAD) for an UDS 802.11 encrypted data frame.
- * @returns a buffer with the bytes of the AAD.
- */
-static std::vector<u8> GenerateCCMPAAD(const MacAddress& sender, const MacAddress& receiver,
-                                       const MacAddress& bssid, u16 frame_control) {
-    // Reference: IEEE 802.11-2007
-
-    // 8.3.3.3.2 Construct AAD (22-30 bytes)
-    // The AAD is constructed from the MPDU header. The AAD does not include the header Duration
-    // field, because the Duration field value can change due to normal IEEE 802.11 operation (e.g.,
-    // a rate change during retransmission). For similar reasons, several subfields in the Frame
-    // Control field are masked to 0.
-    struct {
-        u16_be FC; // MPDU Frame Control field
-        MacAddress A1;
-        MacAddress A2;
-        MacAddress A3;
-        u16_be SC; // MPDU Sequence Control field
-    } aad_struct{};
-
-    constexpr u16 AADFrameControlMask = 0x8FC7;
-    aad_struct.FC = frame_control & AADFrameControlMask;
-    aad_struct.SC = 0;
-
-    bool to_ds = (frame_control & (1 << 0)) != 0;
-    bool from_ds = (frame_control & (1 << 1)) != 0;
-    // In the 802.11 standard, ToDS = 1 and FromDS = 1 is a valid configuration,
-    // however, the 3DS doesn't seem to transmit frames with such combination.
-    ASSERT_MSG(to_ds != from_ds, "Invalid combination");
-
-    // The meaning of the address fields depends on the ToDS and FromDS fields.
-    if (from_ds) {
-        aad_struct.A1 = receiver;
-        aad_struct.A2 = bssid;
-        aad_struct.A3 = sender;
-    }
-
-    if (to_ds) {
-        aad_struct.A1 = bssid;
-        aad_struct.A2 = sender;
-        aad_struct.A3 = receiver;
-    }
-
-    std::vector<u8> aad(sizeof(aad_struct));
-    std::memcpy(aad.data(), &aad_struct, sizeof(aad_struct));
-
-    return aad;
-}
-
-/*
- * Decrypts the payload of an encrypted 802.11 data frame using the specified key.
- * @returns The decrypted payload.
- */
-static std::vector<u8> DecryptDataFrame(const std::vector<u8>& encrypted_payload,
-                                        const std::array<u8, CryptoPP::AES::BLOCKSIZE>& ccmp_key,
-                                        const MacAddress& sender, const MacAddress& receiver,
-                                        const MacAddress& bssid, u16 sequence_number,
-                                        u16 frame_control) {
-
-    // Reference: IEEE 802.11-2007
-
-    std::vector<u8> aad = GenerateCCMPAAD(sender, receiver, bssid, frame_control);
-
-    std::vector<u8> packet_number{0,
-                                  0,
-                                  0,
-                                  0,
-                                  static_cast<u8>((sequence_number >> 8) & 0xFF),
-                                  static_cast<u8>(sequence_number & 0xFF)};
-
-    // 8.3.3.3.3 Construct CCM nonce (13 bytes)
-    std::vector<u8> nonce;
-    nonce.push_back(0);                                                    // priority
-    nonce.insert(nonce.end(), sender.begin(), sender.end());               // Address 2
-    nonce.insert(nonce.end(), packet_number.begin(), packet_number.end()); // PN
-
-    try {
-        CryptoPP::CCM<CryptoPP::AES, 8>::Decryption d;
-        d.SetKeyWithIV(ccmp_key.data(), ccmp_key.size(), nonce.data(), nonce.size());
-        d.SpecifyDataLengths(aad.size(), encrypted_payload.size() - 8, 0);
-
-        CryptoPP::AuthenticatedDecryptionFilter df(
-            d, nullptr, CryptoPP::AuthenticatedDecryptionFilter::MAC_AT_END |
-                            CryptoPP::AuthenticatedDecryptionFilter::THROW_EXCEPTION);
-        // put aad
-        df.ChannelPut(CryptoPP::AAD_CHANNEL, aad.data(), aad.size());
-
-        // put cipher with mac
-        df.ChannelPut(CryptoPP::DEFAULT_CHANNEL, encrypted_payload.data(),
-                      encrypted_payload.size() - 8);
-        df.ChannelPut(CryptoPP::DEFAULT_CHANNEL,
-                      encrypted_payload.data() + encrypted_payload.size() - 8, 8);
-
-        df.ChannelMessageEnd(CryptoPP::AAD_CHANNEL);
-        df.ChannelMessageEnd(CryptoPP::DEFAULT_CHANNEL);
-        df.SetRetrievalChannel(CryptoPP::DEFAULT_CHANNEL);
-
-        size_t size = df.MaxRetrievable();
-
-        std::vector<u8> pdata(size);
-        df.Get(pdata.data(), size);
-        return pdata;
-    } catch (CryptoPP::Exception&) {
-        LOG_ERROR(Service_NWM, "failed to decrypt");
-    }
-
-    return {};
-}
-
-/*
- * Encrypts the payload of an 802.11 data frame using the specified key.
- * @returns The encrypted payload.
- */
-static std::vector<u8> EncryptDataFrame(const std::vector<u8>& payload,
-                                        const std::array<u8, CryptoPP::AES::BLOCKSIZE>& ccmp_key,
-                                        const MacAddress& sender, const MacAddress& receiver,
-                                        const MacAddress& bssid, u16 sequence_number,
-                                        u16 frame_control) {
-    // Reference: IEEE 802.11-2007
-
-    std::vector<u8> aad = GenerateCCMPAAD(sender, receiver, bssid, frame_control);
-
-    std::vector<u8> packet_number{0,
-                                  0,
-                                  0,
-                                  0,
-                                  static_cast<u8>((sequence_number >> 8) & 0xFF),
-                                  static_cast<u8>(sequence_number & 0xFF)};
-
-    // 8.3.3.3.3 Construct CCM nonce (13 bytes)
-    std::vector<u8> nonce;
-    nonce.push_back(0);                                                    // priority
-    nonce.insert(nonce.end(), sender.begin(), sender.end());               // Address 2
-    nonce.insert(nonce.end(), packet_number.begin(), packet_number.end()); // PN
-
-    try {
-        CryptoPP::CCM<CryptoPP::AES, 8>::Encryption d;
-        d.SetKeyWithIV(ccmp_key.data(), ccmp_key.size(), nonce.data(), nonce.size());
-        d.SpecifyDataLengths(aad.size(), payload.size(), 0);
-
-        CryptoPP::AuthenticatedEncryptionFilter df(d);
-        // put aad
-        df.ChannelPut(CryptoPP::AAD_CHANNEL, aad.data(), aad.size());
-        df.ChannelMessageEnd(CryptoPP::AAD_CHANNEL);
-
-        // put plaintext
-        df.ChannelPut(CryptoPP::DEFAULT_CHANNEL, payload.data(), payload.size());
-        df.ChannelMessageEnd(CryptoPP::DEFAULT_CHANNEL);
-
-        df.SetRetrievalChannel(CryptoPP::DEFAULT_CHANNEL);
-
-        size_t size = df.MaxRetrievable();
-
-        std::vector<u8> cipher(size);
-        df.Get(cipher.data(), size);
-        return cipher;
-    } catch (CryptoPP::Exception&) {
-        LOG_ERROR(Service_NWM, "failed to encrypt");
-    }
-
-    return {};
-}
-
-std::vector<u8> GenerateDataPayload(const std::vector<u8>& data, u8 channel, u16 dest_node,
-                                    u16 src_node, u16 sequence_number) {
-    std::vector<u8> buffer = GenerateLLCHeader(EtherType::SecureData);
-    std::vector<u8> securedata_header = GenerateSecureDataHeader(
-        static_cast<u16>(data.size()), channel, dest_node, src_node, sequence_number);
-
-    buffer.insert(buffer.end(), securedata_header.begin(), securedata_header.end());
-    buffer.insert(buffer.end(), data.begin(), data.end());
-    return buffer;
-}
-
-std::vector<u8> GenerateEAPoLStartFrame(u16 association_id, const NodeInfo& node_info) {
-    EAPoLStartPacket eapol_start{};
-    eapol_start.association_id = association_id;
-    eapol_start.node.friend_code_seed = node_info.friend_code_seed;
-
-    std::copy(node_info.username.begin(), node_info.username.end(),
-              eapol_start.node.username.begin());
-
-    // Note: The network_node_id and unknown bytes seem to be uninitialized in the NWM module.
-    // TODO(B3N30): The last 8 bytes seem to have a fixed value of 07 88 15 00 04 e9 13 00 in
-    // EAPoL-Start packets from different 3DSs to the same host during a Super Smash Bros. 4 game.
-    // Find out what that means.
-
-    std::vector<u8> eapol_buffer(sizeof(EAPoLStartPacket));
-    std::memcpy(eapol_buffer.data(), &eapol_start, sizeof(eapol_start));
-
-    std::vector<u8> buffer = GenerateLLCHeader(EtherType::EAPoL);
-    buffer.insert(buffer.end(), eapol_buffer.begin(), eapol_buffer.end());
-    return buffer;
-}
-
-EtherType GetFrameEtherType(const std::vector<u8>& frame) {
-    LLCHeader header;
-    std::memcpy(&header, frame.data(), sizeof(header));
-
-    u16 ethertype = header.protocol;
-    return static_cast<EtherType>(ethertype);
-}
-
-u16 GetEAPoLFrameType(const std::vector<u8>& frame) {
-    // Ignore the LLC header
-    u16_be eapol_type;
-    std::memcpy(&eapol_type, frame.data() + sizeof(LLCHeader), sizeof(eapol_type));
-    return eapol_type;
-}
-
-NodeInfo DeserializeNodeInfoFromFrame(const std::vector<u8>& frame) {
-    EAPoLStartPacket eapol_start;
-
-    // Skip the LLC header
-    std::memcpy(&eapol_start, frame.data() + sizeof(LLCHeader), sizeof(eapol_start));
-
-    NodeInfo node{};
-    node.friend_code_seed = eapol_start.node.friend_code_seed;
-
-    std::copy(eapol_start.node.username.begin(), eapol_start.node.username.end(),
-              node.username.begin());
-
-    return node;
-}
-
-NodeInfo DeserializeNodeInfo(const EAPoLNodeInfo& node) {
-    NodeInfo node_info{};
-    node_info.friend_code_seed = node.friend_code_seed;
-    node_info.network_node_id = node.network_node_id;
-
-    std::copy(node.username.begin(), node.username.end(), node_info.username.begin());
-
-    return node_info;
-}
-
-std::vector<u8> GenerateEAPoLLogoffFrame(const MacAddress& mac_address, u16 network_node_id,
-                                         const NodeList& nodes, u8 max_nodes, u8 total_nodes) {
-    EAPoLLogoffPacket eapol_logoff{};
-    eapol_logoff.assigned_node_id = network_node_id;
-    eapol_logoff.connected_nodes = total_nodes;
-    eapol_logoff.max_nodes = max_nodes;
-
-    for (size_t index = 0; index < total_nodes; ++index) {
-        const auto& node_info = nodes[index];
-        auto& node = eapol_logoff.nodes[index];
-
-        node.friend_code_seed = node_info.friend_code_seed;
-        node.network_node_id = node_info.network_node_id;
-
-        std::copy(node_info.username.begin(), node_info.username.end(), node.username.begin());
-    }
-
-    std::vector<u8> eapol_buffer(sizeof(EAPoLLogoffPacket));
-    std::memcpy(eapol_buffer.data(), &eapol_logoff, sizeof(eapol_logoff));
-
-    std::vector<u8> buffer = GenerateLLCHeader(EtherType::EAPoL);
-    buffer.insert(buffer.end(), eapol_buffer.begin(), eapol_buffer.end());
-    return buffer;
-}
-
-EAPoLLogoffPacket ParseEAPoLLogoffFrame(const std::vector<u8>& frame) {
-    EAPoLLogoffPacket eapol_logoff;
-
-    // Skip the LLC header
-    std::memcpy(&eapol_logoff, frame.data() + sizeof(LLCHeader), sizeof(eapol_logoff));
-    return eapol_logoff;
-}
-
-} // namespace NWM
-} // namespace Service