mirror of
https://github.com/yuzu-emu/yuzu.git
synced 2024-12-25 16:50:06 +00:00
UDS: Run clang-format.
This commit is contained in:
Subv
parent
9befb8c887
commit
87168bfe8b
@ -433,9 +433,8 @@ static void SendTo(Interface* self) {
|
||||
|
||||
// TODO(Subv): Increment the sequence number after each sent packet.
|
||||
u16 sequence_number = 0;
|
||||
std::vector<u8> data_payload = GenerateDataPayload(data, data_channel, dest_node_id,
|
||||
connection_status.network_node_id,
|
||||
sequence_number);
|
||||
std::vector<u8> data_payload = GenerateDataPayload(
|
||||
data, data_channel, dest_node_id, connection_status.network_node_id, sequence_number);
|
||||
|
||||
// TODO(Subv): Retrieve the MAC address of the dest_node_id and our own to encrypt
|
||||
// and encapsulate the payload.
|
||||
@ -640,7 +639,7 @@ const Interface::FunctionInfo FunctionTable[] = {
|
||||
{0x00130040, nullptr, "Unbind"},
|
||||
{0x001400C0, nullptr, "PullPacket"},
|
||||
{0x00150080, nullptr, "SetMaxSendDelay"},
|
||||
{0x00170182, SendTo, "SendTo"},
|
||||
{0x00170182, SendTo, "SendTo"},
|
||||
{0x001A0000, GetChannel, "GetChannel"},
|
||||
{0x001B0302, InitializeWithVersion, "InitializeWithVersion"},
|
||||
{0x001D0044, BeginHostingNetwork, "BeginHostingNetwork"},
|
||||
|
||||
@ -3,20 +3,20 @@
|
||||
// Refer to the license.txt file included.
|
||||
|
||||
#include <cstring>
|
||||
|
||||
#include "core/hle/service/nwm/nwm_uds.h"
|
||||
#include "core/hle/service/nwm/uds_beacon.h"
|
||||
#include "core/hle/service/nwm/uds_data.h"
|
||||
#include "core/hw/aes/key.h"
|
||||
|
||||
#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>;
|
||||
|
||||
// AES Keyslot used to generate the UDS data frame CCMP key.
|
||||
constexpr size_t UDSDataCryptoAESKeySlot = 0x2D;
|
||||
|
||||
@ -39,14 +39,15 @@ static std::vector<u8> GenerateLLCHeader(EtherType protocol) {
|
||||
* @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) {
|
||||
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;
|
||||
header.is_management = 0; // Frames sent by the emulated application are never UDS management frames
|
||||
// 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;
|
||||
@ -60,7 +61,7 @@ static std::vector<u8> GenerateSecureDataHeader(u16 data_size, u8 channel, u16 d
|
||||
|
||||
/*
|
||||
* Calculates the CTR used for the AES-CTR process that calculates
|
||||
* the CCMP crypto key for data frames.
|
||||
* 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) {
|
||||
@ -81,15 +82,16 @@ static std::array<u8, CryptoPP::MD5::DIGESTSIZE> GetDataCryptoCTR(const NetworkI
|
||||
* 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) {
|
||||
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.
|
||||
// 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(UDSDataCryptoAESKeySlot);
|
||||
@ -139,21 +141,26 @@ static std::vector<u8> GenerateCCMPAAD(const MacAddress& sender, const MacAddres
|
||||
* 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, u16 sequence_number) {
|
||||
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,
|
||||
u16 sequence_number) {
|
||||
|
||||
// Reference: IEEE 802.11-2007
|
||||
|
||||
std::vector<u8> aad = GenerateCCMPAAD(sender, receiver);
|
||||
|
||||
std::vector<u8> packet_number{0, 0, 0, 0,
|
||||
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.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 {
|
||||
@ -161,15 +168,17 @@ static std::vector<u8> DecryptDataFrame(const std::vector<u8>& encrypted_payload
|
||||
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);
|
||||
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.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);
|
||||
@ -191,20 +200,25 @@ static std::vector<u8> DecryptDataFrame(const std::vector<u8>& encrypted_payload
|
||||
* 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, u16 sequence_number) {
|
||||
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,
|
||||
u16 sequence_number) {
|
||||
// Reference: IEEE 802.11-2007
|
||||
|
||||
std::vector<u8> aad = GenerateCCMPAAD(sender, receiver);
|
||||
|
||||
std::vector<u8> packet_number{0, 0, 0, 0,
|
||||
static_cast<u8>((sequence_number >> 8) & 0xFF),
|
||||
static_cast<u8>(sequence_number & 0xFF)};
|
||||
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.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 {
|
||||
@ -235,11 +249,11 @@ static std::vector<u8> EncryptDataFrame(const std::vector<u8>& payload, const st
|
||||
return {};
|
||||
}
|
||||
|
||||
std::vector<u8> GenerateDataPayload(const std::vector<u8>& data, u8 channel, u16 dest_node, u16 src_node,
|
||||
u16 sequence_number) {
|
||||
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(data.size(), channel, dest_node, src_node,
|
||||
sequence_number);
|
||||
std::vector<u8> securedata_header =
|
||||
GenerateSecureDataHeader(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());
|
||||
|
||||
@ -6,28 +6,18 @@
|
||||
|
||||
#include <array>
|
||||
#include <vector>
|
||||
|
||||
#include "common/common_types.h"
|
||||
#include "common/swap.h"
|
||||
#include "core/hle/service/service.h"
|
||||
|
||||
#include <cryptopp/aes.h>
|
||||
|
||||
namespace Service {
|
||||
namespace NWM {
|
||||
|
||||
enum class SAP : u8 {
|
||||
SNAPExtensionUsed = 0xAA
|
||||
};
|
||||
enum class SAP : u8 { SNAPExtensionUsed = 0xAA };
|
||||
|
||||
enum class PDUControl : u8 {
|
||||
UnnumberedInformation = 3
|
||||
};
|
||||
enum class PDUControl : u8 { UnnumberedInformation = 3 };
|
||||
|
||||
enum class EtherType : u16 {
|
||||
SecureData = 0x876D,
|
||||
EAPoL = 0x888E
|
||||
};
|
||||
enum class EtherType : u16 { SecureData = 0x876D, EAPoL = 0x888E };
|
||||
|
||||
/*
|
||||
* 802.2 header, UDS packets always use SNAP for these headers,
|
||||
@ -81,7 +71,8 @@ static_assert(sizeof(DataFrameCryptoCTR) == 16, "DataFrameCryptoCTR has the wron
|
||||
* Generates an unencrypted 802.11 data payload.
|
||||
* @returns The generated frame payload.
|
||||
*/
|
||||
std::vector<u8> GenerateDataPayload(const std::vector<u8>& data, u8 channel, u16 dest_node, u16 src_node, u16 sequence_number);
|
||||
std::vector<u8> GenerateDataPayload(const std::vector<u8>& data, u8 channel, u16 dest_node,
|
||||
u16 src_node, u16 sequence_number);
|
||||
|
||||
} // namespace NWM
|
||||
} // namespace Service
|
||||
|
||||
Loading…
Reference in New Issue
Block a user