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Services/UDS: Add functions to generate 802.11 auth and assoc response frames.

This commit is contained in:
Subv 2017-07-17 09:25:58 -05:00
parent 22e7402ab1
commit 54411bef4e
5 changed files with 144 additions and 11 deletions

View file

@ -144,6 +144,7 @@ set(SRCS
hle/service/nwm/nwm_tst.cpp hle/service/nwm/nwm_tst.cpp
hle/service/nwm/nwm_uds.cpp hle/service/nwm/nwm_uds.cpp
hle/service/nwm/uds_beacon.cpp hle/service/nwm/uds_beacon.cpp
hle/service/nwm/uds_connection.cpp
hle/service/nwm/uds_data.cpp hle/service/nwm/uds_data.cpp
hle/service/pm_app.cpp hle/service/pm_app.cpp
hle/service/ptm/ptm.cpp hle/service/ptm/ptm.cpp
@ -342,6 +343,7 @@ set(HEADERS
hle/service/nwm/nwm_tst.h hle/service/nwm/nwm_tst.h
hle/service/nwm/nwm_uds.h hle/service/nwm/nwm_uds.h
hle/service/nwm/uds_beacon.h hle/service/nwm/uds_beacon.h
hle/service/nwm/uds_connection.h
hle/service/nwm/uds_data.h hle/service/nwm/uds_data.h
hle/service/pm_app.h hle/service/pm_app.h
hle/service/ptm/ptm.h hle/service/ptm/ptm.h

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@ -42,6 +42,7 @@ using NodeList = std::vector<NodeInfo>;
enum class NetworkStatus { enum class NetworkStatus {
NotConnected = 3, NotConnected = 3,
ConnectedAsHost = 6, ConnectedAsHost = 6,
Connecting = 7,
ConnectedAsClient = 9, ConnectedAsClient = 9,
ConnectedAsSpectator = 10, ConnectedAsSpectator = 10,
}; };
@ -85,6 +86,17 @@ static_assert(offsetof(NetworkInfo, oui_value) == 0xC, "oui_value is at the wron
static_assert(offsetof(NetworkInfo, wlan_comm_id) == 0x10, "wlancommid is at the wrong offset."); static_assert(offsetof(NetworkInfo, wlan_comm_id) == 0x10, "wlancommid is at the wrong offset.");
static_assert(sizeof(NetworkInfo) == 0x108, "NetworkInfo has incorrect size."); static_assert(sizeof(NetworkInfo) == 0x108, "NetworkInfo has incorrect size.");
/// Additional block tag ids in the Beacon and Association Response frames
enum class TagId : u8 {
SSID = 0,
SupportedRates = 1,
DSParameterSet = 2,
TrafficIndicationMap = 5,
CountryInformation = 7,
ERPInformation = 42,
VendorSpecific = 221
};
class NWM_UDS final : public Interface { class NWM_UDS final : public Interface {
public: public:
NWM_UDS(); NWM_UDS();

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@ -17,17 +17,6 @@ namespace NWM {
using MacAddress = std::array<u8, 6>; using MacAddress = std::array<u8, 6>;
constexpr std::array<u8, 3> NintendoOUI = {0x00, 0x1F, 0x32}; constexpr std::array<u8, 3> NintendoOUI = {0x00, 0x1F, 0x32};
/// Additional block tag ids in the Beacon frames
enum class TagId : u8 {
SSID = 0,
SupportedRates = 1,
DSParameterSet = 2,
TrafficIndicationMap = 5,
CountryInformation = 7,
ERPInformation = 42,
VendorSpecific = 221
};
/** /**
* Internal vendor-specific tag ids as stored inside * Internal vendor-specific tag ids as stored inside
* VendorSpecific blocks in the Beacon frames. * VendorSpecific blocks in the Beacon frames.

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@ -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

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@ -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