Merge pull request #7107 from lioncash/mac

Common/Network: Get rid of out parameters for MAC address utilities

Source/Core/Core/HW/EXI/EXI_DeviceEthernet.cpp

@@ -5,6 +5,7 @@
 #include "Core/HW/EXI/EXI_DeviceEthernet.h"
 
 #include <memory>
+#include <optional>
 #include <string>
 
 #include "Common/ChunkFile.h"
@@ -33,16 +34,17 @@ CEXIETHERNET::CEXIETHERNET()
   // Parse MAC address from config, and generate a new one if it doesn't
   // exist or can't be parsed.
   std::string& mac_addr_setting = SConfig::GetInstance().m_bba_mac;
-  u8 mac_addr[Common::MAC_ADDRESS_SIZE] = {0};
+  std::optional<Common::MACAddress> mac_addr = Common::StringToMacAddress(mac_addr_setting);
 
-  if (!Common::StringToMacAddress(mac_addr_setting, mac_addr))
+  if (!mac_addr)
   {
-    Common::GenerateMacAddress(Common::MACConsumer::BBA, mac_addr);
-    mac_addr_setting = Common::MacAddressToString(mac_addr);
+    mac_addr = Common::GenerateMacAddress(Common::MACConsumer::BBA);
+    mac_addr_setting = Common::MacAddressToString(mac_addr.value());
     SConfig::GetInstance().SaveSettings();
   }
 
-  memcpy(&mBbaMem[BBA_NAFR_PAR0], mac_addr, Common::MAC_ADDRESS_SIZE);
+  const auto& mac = mac_addr.value();
+  memcpy(&mBbaMem[BBA_NAFR_PAR0], mac.data(), mac.size());
 
   // HACK: .. fully established 100BASE-T link
   mBbaMem[BBA_NWAYS] = NWAYS_LS100 | NWAYS_LPNWAY | NWAYS_100TXF | NWAYS_ANCLPT;

Source/Core/Core/IOS/Network/IP/Top.cpp

@@ -878,10 +878,11 @@ IPCCommandResult NetIPTop::HandleGetInterfaceOptRequest(const IOCtlVRequest& req
     break;
 
   case 0x1004:  // mac address
-    u8 address[Common::MAC_ADDRESS_SIZE];
-    IOS::Net::GetMACAddress(address);
-    Memory::CopyToEmu(request.io_vectors[0].address, address, sizeof(address));
+  {
+    const Common::MACAddress address = IOS::Net::GetMACAddress();
+    Memory::CopyToEmu(request.io_vectors[0].address, address.data(), address.size());
     break;
+  }
 
   case 0x1005:  // link state
     Memory::Write_U32(1, request.io_vectors[0].address);

Source/Core/Core/IOS/Network/MACUtils.cpp

@@ -4,6 +4,7 @@
 
 #include "Core/IOS/Network/MACUtils.h"
 
+#include <optional>
 #include <string>
 
 #include "Common/CommonTypes.h"
@@ -15,13 +16,13 @@
 
 namespace IOS::Net
 {
-static void SaveMACAddress(const u8* mac)
+static void SaveMACAddress(const Common::MACAddress& mac)
 {
   SConfig::GetInstance().m_WirelessMac = Common::MacAddressToString(mac);
   SConfig::GetInstance().SaveSettings();
 }
 
-void GetMACAddress(u8* mac)
+Common::MACAddress GetMACAddress()
 {
   // Parse MAC address from config, and generate a new one if it doesn't
   // exist or can't be parsed.
@@ -30,19 +31,22 @@ void GetMACAddress(u8* mac)
   if (Core::WantsDeterminism())
     wireless_mac = "12:34:56:78:9a:bc";
 
-  if (!Common::StringToMacAddress(wireless_mac, mac))
+  std::optional<Common::MACAddress> mac = Common::StringToMacAddress(wireless_mac);
+
+  if (!mac)
   {
-    Common::GenerateMacAddress(Common::MACConsumer::IOS, mac);
-    SaveMACAddress(mac);
+    mac = Common::GenerateMacAddress(Common::MACConsumer::IOS);
+    SaveMACAddress(mac.value());
     if (!wireless_mac.empty())
     {
       ERROR_LOG(IOS_NET,
                 "The MAC provided (%s) is invalid. We have "
                 "generated another one for you.",
-                Common::MacAddressToString(mac).c_str());
+                Common::MacAddressToString(mac.value()).c_str());
     }
   }
 
-  INFO_LOG(IOS_NET, "Using MAC address: %s", Common::MacAddressToString(mac).c_str());
+  INFO_LOG(IOS_NET, "Using MAC address: %s", Common::MacAddressToString(mac.value()).c_str());
+  return mac.value();
 }
 }  // namespace IOS::Net

Source/Core/Core/IOS/Network/MACUtils.h

@@ -4,9 +4,9 @@
 
 #pragma once
 
-#include "Common/CommonTypes.h"
+#include "Common/Network.h"
 
 namespace IOS::Net
 {
-void GetMACAddress(u8* mac);
+Common::MACAddress GetMACAddress();
 }  // namespace IOS::Net

Source/Core/Core/IOS/Network/NCD/Manage.cpp

@@ -65,12 +65,13 @@ IPCCommandResult NetNCDManage::IOCtlV(const IOCtlVRequest& request)
     break;
 
   case IOCTLV_NCD_GETWIRELESSMACADDRESS:
+  {
     INFO_LOG(IOS_NET, "NET_NCD_MANAGE: IOCTLV_NCD_GETWIRELESSMACADDRESS");
 
-    u8 address[Common::MAC_ADDRESS_SIZE];
-    IOS::Net::GetMACAddress(address);
-    Memory::CopyToEmu(request.io_vectors.at(1).address, address, sizeof(address));
+    const Common::MACAddress address = IOS::Net::GetMACAddress();
+    Memory::CopyToEmu(request.io_vectors.at(1).address, address.data(), address.size());
     break;
+  }
 
   default:
     INFO_LOG(IOS_NET, "NET_NCD_MANAGE IOCtlV: %#x", request.request);

Source/Core/Core/IOS/Network/WD/Command.cpp

@@ -4,6 +4,7 @@
 
 #include "Core/IOS/Network/WD/Command.h"
 
+#include <algorithm>
 #include <cstring>
 #include <string>
 
@@ -65,9 +66,8 @@ IPCCommandResult NetWDCommand::IOCtlV(const IOCtlVRequest& request)
     memcpy(info->country, "US", 2);
     info->ntr_allowed_channels = Common::swap16(0xfffe);
 
-    u8 address[Common::MAC_ADDRESS_SIZE];
-    IOS::Net::GetMACAddress(address);
-    memcpy(info->mac, address, sizeof(info->mac));
+    const Common::MACAddress address = IOS::Net::GetMACAddress();
+    std::copy(address.begin(), address.end(), info->mac);
   }
   break;
 

Source/Core/Core/IOS/USB/Bluetooth/BTReal.cpp

@@ -518,9 +518,17 @@ void BluetoothReal::LoadLinkKeys()
     if (index == std::string::npos)
       continue;
 
-    bdaddr_t address;
-    Common::StringToMacAddress(pair.substr(0, index), address.data());
-    std::reverse(address.begin(), address.end());
+    const std::string address_string = pair.substr(0, index);
+    std::optional<bdaddr_t> address = Common::StringToMacAddress(address_string);
+    if (!address)
+    {
+      ERROR_LOG(IOS_WIIMOTE, "Malformed MAC address (%s). Skipping loading of current link key.",
+                address_string.c_str());
+      continue;
+    }
+
+    auto& mac = address.value();
+    std::reverse(mac.begin(), mac.end());
 
     const std::string& key_string = pair.substr(index + 1);
     linkkey_t key{};
@@ -532,7 +540,7 @@ void BluetoothReal::LoadLinkKeys()
       key[pos++] = value;
     }
 
-    m_link_keys[address] = key;
+    m_link_keys[mac] = key;
   }
 }
 
@@ -544,7 +552,7 @@ void BluetoothReal::SaveLinkKeys()
     bdaddr_t address;
     // Reverse the address so that it is stored in the correct order in the config file
     std::reverse_copy(entry.first.begin(), entry.first.end(), address.begin());
-    oss << Common::MacAddressToString(address.data());
+    oss << Common::MacAddressToString(address);
     oss << '=';
     oss << std::hex;
     for (const u16& data : entry.second)