Merge pull request #5333 from leoetlino/es-functions

IOS/ES: Handle contexts properly

23 files changed, 241 insertions, 222 deletions

diff --git a/Source/Core/Core/IOS/Device.cpp b/Source/Core/Core/IOS/Device.cpp
index 5d38c7efff..e407d54777 100644
--- a/Source/Core/Core/IOS/Device.cpp
+++ b/Source/Core/Core/IOS/Device.cpp
@@ -154,9 +154,10 @@ ReturnCode Device::Open(const OpenRequest& request)
   return IPC_SUCCESS;
 }
 
-void Device::Close()
+ReturnCode Device::Close(u32 fd)
 {
   m_is_active = false;
+  return IPC_SUCCESS;
 }
 
 IPCCommandResult Device::Unsupported(const Request& request)
diff --git a/Source/Core/Core/IOS/Device.h b/Source/Core/Core/IOS/Device.h
index 91d2dbbe36..c8dd0ccf30 100644
--- a/Source/Core/Core/IOS/Device.h
+++ b/Source/Core/Core/IOS/Device.h
@@ -185,7 +185,7 @@ public:
   // Replies to Open and Close requests are sent by the IPC request handler (HandleCommand),
   // not by the devices themselves.
   virtual ReturnCode Open(const OpenRequest& request);
-  virtual void Close();
+  virtual ReturnCode Close(u32 fd);
   virtual IPCCommandResult Seek(const SeekRequest& seek) { return Unsupported(seek); }
   virtual IPCCommandResult Read(const ReadWriteRequest& read) { return Unsupported(read); }
   virtual IPCCommandResult Write(const ReadWriteRequest& write) { return Unsupported(write); }
diff --git a/Source/Core/Core/IOS/DeviceStub.cpp b/Source/Core/Core/IOS/DeviceStub.cpp
index cdd74ac1bc..2502c84769 100644
--- a/Source/Core/Core/IOS/DeviceStub.cpp
+++ b/Source/Core/Core/IOS/DeviceStub.cpp
@@ -22,12 +22,6 @@ ReturnCode Stub::Open(const OpenRequest& request)
   return IPC_SUCCESS;
 }
 
-void Stub::Close()
-{
-  WARN_LOG(IOS, "%s faking Close()", m_name.c_str());
-  m_is_active = false;
-}
-
 IPCCommandResult Stub::IOCtl(const IOCtlRequest& request)
 {
   WARN_LOG(IOS, "%s faking IOCtl()", m_name.c_str());
diff --git a/Source/Core/Core/IOS/DeviceStub.h b/Source/Core/Core/IOS/DeviceStub.h
index 6b7298cc53..b6b60b0248 100644
--- a/Source/Core/Core/IOS/DeviceStub.h
+++ b/Source/Core/Core/IOS/DeviceStub.h
@@ -22,7 +22,6 @@ public:
   Stub(u32 device_id, const std::string& device_name);
 
   ReturnCode Open(const OpenRequest& request) override;
-  void Close() override;
   IPCCommandResult IOCtl(const IOCtlRequest& request) override;
   IPCCommandResult IOCtlV(const IOCtlVRequest& request) override;
 };
diff --git a/Source/Core/Core/IOS/ES/ES.cpp b/Source/Core/Core/IOS/ES/ES.cpp
index 29ea0de0fb..1ff4064c1a 100644
--- a/Source/Core/Core/IOS/ES/ES.cpp
+++ b/Source/Core/Core/IOS/ES/ES.cpp
@@ -4,6 +4,7 @@
 
 #include "Core/IOS/ES/ES.h"
 
+#include <algorithm>
 #include <cinttypes>
 #include <cstdio>
 #include <memory>
@@ -27,17 +28,13 @@ namespace HLE
 {
 namespace Device
 {
-// Shared across all ES instances.
+// TODO: drop this and convert the title context into a member once the WAD launch hack is gone.
 static std::string s_content_file;
 static TitleContext s_title_context;
 
 // Title to launch after IOS has been reset and reloaded (similar to /sys/launch.sys).
 static u64 s_title_to_launch;
 
-ES::ES(u32 device_id, const std::string& device_name) : Device(device_id, device_name)
-{
-}
-
 static void FinishAllStaleImports()
 {
   const std::vector<u64> titles = IOS::ES::GetTitleImports();
@@ -58,7 +55,7 @@ static void FinishAllStaleImports()
   File::CreateDir(import_dir);
 }
 
-void ES::Init()
+ES::ES(u32 device_id, const std::string& device_name) : Device(device_id, device_name)
 {
   FinishAllStaleImports();
 
@@ -182,14 +179,14 @@ static ReturnCode CheckIsAllowedToSetUID(const u32 caller_uid)
   return caller_uid == system_menu_uid ? IPC_SUCCESS : ES_EINVAL;
 }
 
-IPCCommandResult ES::SetUID(const IOCtlVRequest& request)
+IPCCommandResult ES::SetUID(u32 uid, const IOCtlVRequest& request)
 {
   if (!request.HasNumberOfValidVectors(1, 0) || request.in_vectors[0].size != 8)
     return GetDefaultReply(ES_EINVAL);
 
   const u64 title_id = Memory::Read_U64(request.in_vectors[0].address);
 
-  const s32 ret = CheckIsAllowedToSetUID(m_caller_uid);
+  const s32 ret = CheckIsAllowedToSetUID(uid);
   if (ret < 0)
   {
     ERROR_LOG(IOS_ES, "SetUID: Permission check failed with error %d", ret);
@@ -279,6 +276,24 @@ bool ES::LaunchPPCTitle(u64 title_id, bool skip_reload)
   return BootstrapPPC(content_loader);
 }
 
+void ES::Context::DoState(PointerWrap& p)
+{
+  p.Do(uid);
+  p.Do(gid);
+
+  title_import.tmd.DoState(p);
+  p.Do(title_import.content_id);
+  p.Do(title_import.content_buffer);
+
+  p.Do(title_export.valid);
+  title_export.tmd.DoState(p);
+  p.Do(title_export.title_key);
+  p.Do(title_export.contents);
+
+  p.Do(active);
+  p.Do(ipc_fd);
+}
+
 void ES::DoState(PointerWrap& p)
 {
   Device::DoState(p);
@@ -286,17 +301,8 @@ void ES::DoState(PointerWrap& p)
   p.Do(m_AccessIdentID);
   s_title_context.DoState(p);
 
-  m_addtitle_tmd.DoState(p);
-  p.Do(m_addtitle_content_id);
-  p.Do(m_addtitle_content_buffer);
-
-  p.Do(m_caller_uid);
-  p.Do(m_caller_gid);
-
-  p.Do(m_export_title_context.valid);
-  m_export_title_context.tmd.DoState(p);
-  p.Do(m_export_title_context.title_key);
-  p.Do(m_export_title_context.contents);
+  for (auto& context : m_contexts)
+    context.DoState(p);
 
   u32 Count = (u32)(m_ContentAccessMap.size());
   p.Do(Count);
@@ -322,16 +328,41 @@ void ES::DoState(PointerWrap& p)
   }
 }
 
+ES::ContextArray::iterator ES::FindActiveContext(u32 fd)
+{
+  return std::find_if(m_contexts.begin(), m_contexts.end(),
+                      [fd](const auto& context) { return context.ipc_fd == fd && context.active; });
+}
+
+ES::ContextArray::iterator ES::FindInactiveContext()
+{
+  return std::find_if(m_contexts.begin(), m_contexts.end(),
+                      [](const auto& context) { return !context.active; });
+}
+
 ReturnCode ES::Open(const OpenRequest& request)
 {
-  m_caller_uid = request.uid;
-  m_caller_gid = request.gid;
+  auto context = FindInactiveContext();
+  if (context == m_contexts.end())
+    return ES_FD_EXHAUSTED;
+
+  context->active = true;
+  context->uid = request.uid;
+  context->gid = request.gid;
+  context->ipc_fd = request.fd;
   return Device::Open(request);
 }
 
-void ES::Close()
+ReturnCode ES::Close(u32 fd)
 {
-  // XXX: does IOS really clear the content access map here?
+  auto context = FindActiveContext(fd);
+  if (context == m_contexts.end())
+    return ES_EINVAL;
+
+  context->active = false;
+  context->ipc_fd = -1;
+
+  // FIXME: IOS doesn't clear the content access map here.
   m_ContentAccessMap.clear();
   m_AccessIdentID = 0;
 
@@ -339,48 +370,52 @@ void ES::Close()
   m_is_active = false;
   // clear the NAND content cache to make sure nothing remains open.
   DiscIO::CNANDContentManager::Access().ClearCache();
+  return IPC_SUCCESS;
 }
 
 IPCCommandResult ES::IOCtlV(const IOCtlVRequest& request)
 {
   DEBUG_LOG(IOS_ES, "%s (0x%x)", GetDeviceName().c_str(), request.request);
+  auto context = FindActiveContext(request.fd);
+  if (context == m_contexts.end())
+    return GetDefaultReply(ES_EINVAL);
 
   switch (request.request)
   {
   case IOCTL_ES_ADDTICKET:
     return AddTicket(request);
   case IOCTL_ES_ADDTMD:
-    return AddTMD(request);
+    return AddTMD(*context, request);
   case IOCTL_ES_ADDTITLESTART:
-    return AddTitleStart(request);
+    return AddTitleStart(*context, request);
   case IOCTL_ES_ADDCONTENTSTART:
-    return AddContentStart(request);
+    return AddContentStart(*context, request);
   case IOCTL_ES_ADDCONTENTDATA:
-    return AddContentData(request);
+    return AddContentData(*context, request);
   case IOCTL_ES_ADDCONTENTFINISH:
-    return AddContentFinish(request);
+    return AddContentFinish(*context, request);
   case IOCTL_ES_ADDTITLEFINISH:
-    return AddTitleFinish(request);
+    return AddTitleFinish(*context, request);
   case IOCTL_ES_ADDTITLECANCEL:
-    return AddTitleCancel(request);
+    return AddTitleCancel(*context, request);
   case IOCTL_ES_GETDEVICEID:
     return GetConsoleID(request);
   case IOCTL_ES_OPENTITLECONTENT:
-    return OpenTitleContent(request);
+    return OpenTitleContent(context->uid, request);
   case IOCTL_ES_OPENCONTENT:
-    return OpenContent(request);
+    return OpenContent(context->uid, request);
   case IOCTL_ES_READCONTENT:
-    return ReadContent(request);
+    return ReadContent(context->uid, request);
   case IOCTL_ES_CLOSECONTENT:
-    return CloseContent(request);
+    return CloseContent(context->uid, request);
   case IOCTL_ES_SEEKCONTENT:
-    return SeekContent(request);
+    return SeekContent(context->uid, request);
   case IOCTL_ES_GETTITLEDIR:
     return GetTitleDirectory(request);
   case IOCTL_ES_GETTITLEID:
     return GetTitleID(request);
   case IOCTL_ES_SETUID:
-    return SetUID(request);
+    return SetUID(context->uid, request);
   case IOCTL_ES_DIVERIFY:
     return DIVerify(request);
 
@@ -441,23 +476,23 @@ IPCCommandResult ES::IOCtlV(const IOCtlVRequest& request)
   case IOCTL_ES_GETSTOREDTMD:
     return GetStoredTMD(request);
   case IOCTL_ES_ENCRYPT:
-    return Encrypt(request);
+    return Encrypt(context->uid, request);
   case IOCTL_ES_DECRYPT:
-    return Decrypt(request);
+    return Decrypt(context->uid, request);
   case IOCTL_ES_LAUNCH:
     return Launch(request);
   case IOCTL_ES_LAUNCHBC:
     return LaunchBC(request);
   case IOCTL_ES_EXPORTTITLEINIT:
-    return ExportTitleInit(request);
+    return ExportTitleInit(*context, request);
   case IOCTL_ES_EXPORTCONTENTBEGIN:
-    return ExportContentBegin(request);
+    return ExportContentBegin(*context, request);
   case IOCTL_ES_EXPORTCONTENTDATA:
-    return ExportContentData(request);
+    return ExportContentData(*context, request);
   case IOCTL_ES_EXPORTCONTENTEND:
-    return ExportContentEnd(request);
+    return ExportContentEnd(*context, request);
   case IOCTL_ES_EXPORTTITLEDONE:
-    return ExportTitleDone(request);
+    return ExportTitleDone(*context, request);
   case IOCTL_ES_CHECKKOREAREGION:
     return CheckKoreaRegion(request);
   case IOCTL_ES_GETDEVICECERT:
diff --git a/Source/Core/Core/IOS/ES/ES.h b/Source/Core/Core/IOS/ES/ES.h
index e7cb5c6c45..e060f51af4 100644
--- a/Source/Core/Core/IOS/ES/ES.h
+++ b/Source/Core/Core/IOS/ES/ES.h
@@ -45,9 +45,6 @@ class ES final : public Device
 public:
   ES(u32 device_id, const std::string& device_name);
 
-  // Called after an IOS reload.
-  static void Init();
-
   static s32 DIVerify(const IOS::ES::TMDReader& tmd, const IOS::ES::TicketReader& ticket);
   static void LoadWAD(const std::string& _rContentFile);
   static bool LaunchTitle(u64 title_id, bool skip_reload = false);
@@ -58,7 +55,7 @@ public:
   void DoState(PointerWrap& p) override;
 
   ReturnCode Open(const OpenRequest& request) override;
-  void Close() override;
+  ReturnCode Close(u32 fd) override;
   IPCCommandResult IOCtlV(const IOCtlVRequest& request) override;
 
 private:
@@ -155,20 +152,57 @@ private:
     u8 padding[0x3c];
   };
 
+  struct TitleImportContext
+  {
+    IOS::ES::TMDReader tmd;
+    u32 content_id = 0xFFFFFFFF;
+    std::vector<u8> content_buffer;
+  };
+
+  // TODO: merge this with TitleImportContext. Also reuse the global content table.
+  struct TitleExportContext
+  {
+    struct ExportContent
+    {
+      OpenedContent content;
+      std::array<u8, 16> iv{};
+    };
+
+    bool valid = false;
+    IOS::ES::TMDReader tmd;
+    std::vector<u8> title_key;
+    std::map<u32, ExportContent> contents;
+  };
+
+  struct Context
+  {
+    void DoState(PointerWrap& p);
+
+    u16 gid = 0;
+    u32 uid = 0;
+    TitleImportContext title_import;
+    TitleExportContext title_export;
+    bool active = false;
+    // We use this to associate an IPC fd with an ES context.
+    u32 ipc_fd = -1;
+  };
+  // ES can only have 3 contexts at one time.
+  using ContextArray = std::array<Context, 3>;
+
   // Title management
   IPCCommandResult AddTicket(const IOCtlVRequest& request);
-  IPCCommandResult AddTMD(const IOCtlVRequest& request);
-  IPCCommandResult AddTitleStart(const IOCtlVRequest& request);
-  IPCCommandResult AddContentStart(const IOCtlVRequest& request);
-  IPCCommandResult AddContentData(const IOCtlVRequest& request);
-  IPCCommandResult AddContentFinish(const IOCtlVRequest& request);
-  IPCCommandResult AddTitleFinish(const IOCtlVRequest& request);
-  IPCCommandResult AddTitleCancel(const IOCtlVRequest& request);
-  IPCCommandResult ExportTitleInit(const IOCtlVRequest& request);
-  IPCCommandResult ExportContentBegin(const IOCtlVRequest& request);
-  IPCCommandResult ExportContentData(const IOCtlVRequest& request);
-  IPCCommandResult ExportContentEnd(const IOCtlVRequest& request);
-  IPCCommandResult ExportTitleDone(const IOCtlVRequest& request);
+  IPCCommandResult AddTMD(Context& context, const IOCtlVRequest& request);
+  IPCCommandResult AddTitleStart(Context& context, const IOCtlVRequest& request);
+  IPCCommandResult AddContentStart(Context& context, const IOCtlVRequest& request);
+  IPCCommandResult AddContentData(Context& context, const IOCtlVRequest& request);
+  IPCCommandResult AddContentFinish(Context& context, const IOCtlVRequest& request);
+  IPCCommandResult AddTitleFinish(Context& context, const IOCtlVRequest& request);
+  IPCCommandResult AddTitleCancel(Context& context, const IOCtlVRequest& request);
+  IPCCommandResult ExportTitleInit(Context& context, const IOCtlVRequest& request);
+  IPCCommandResult ExportContentBegin(Context& context, const IOCtlVRequest& request);
+  IPCCommandResult ExportContentData(Context& context, const IOCtlVRequest& request);
+  IPCCommandResult ExportContentEnd(Context& context, const IOCtlVRequest& request);
+  IPCCommandResult ExportTitleDone(Context& context, const IOCtlVRequest& request);
   IPCCommandResult DeleteTitle(const IOCtlVRequest& request);
   IPCCommandResult DeleteTicket(const IOCtlVRequest& request);
   IPCCommandResult DeleteTitleContent(const IOCtlVRequest& request);
@@ -178,11 +212,11 @@ private:
   IPCCommandResult GetDeviceCertificate(const IOCtlVRequest& request);
   IPCCommandResult CheckKoreaRegion(const IOCtlVRequest& request);
   IPCCommandResult Sign(const IOCtlVRequest& request);
-  IPCCommandResult Encrypt(const IOCtlVRequest& request);
-  IPCCommandResult Decrypt(const IOCtlVRequest& request);
+  IPCCommandResult Encrypt(u32 uid, const IOCtlVRequest& request);
+  IPCCommandResult Decrypt(u32 uid, const IOCtlVRequest& request);
 
   // Misc
-  IPCCommandResult SetUID(const IOCtlVRequest& request);
+  IPCCommandResult SetUID(u32 uid, const IOCtlVRequest& request);
   IPCCommandResult GetTitleDirectory(const IOCtlVRequest& request);
   IPCCommandResult GetTitleID(const IOCtlVRequest& request);
   IPCCommandResult GetConsumption(const IOCtlVRequest& request);
@@ -191,11 +225,11 @@ private:
   IPCCommandResult DIVerify(const IOCtlVRequest& request);
 
   // Title contents
-  IPCCommandResult OpenTitleContent(const IOCtlVRequest& request);
-  IPCCommandResult OpenContent(const IOCtlVRequest& request);
-  IPCCommandResult ReadContent(const IOCtlVRequest& request);
-  IPCCommandResult CloseContent(const IOCtlVRequest& request);
-  IPCCommandResult SeekContent(const IOCtlVRequest& request);
+  IPCCommandResult OpenTitleContent(u32 uid, const IOCtlVRequest& request);
+  IPCCommandResult OpenContent(u32 uid, const IOCtlVRequest& request);
+  IPCCommandResult ReadContent(u32 uid, const IOCtlVRequest& request);
+  IPCCommandResult CloseContent(u32 uid, const IOCtlVRequest& request);
+  IPCCommandResult SeekContent(u32 uid, const IOCtlVRequest& request);
 
   // Title information
   IPCCommandResult GetTitleCount(const std::vector<u64>& titles, const IOCtlVRequest& request);
@@ -228,6 +262,9 @@ private:
   IPCCommandResult DIGetTMDSize(const IOCtlVRequest& request);
   IPCCommandResult DIGetTMD(const IOCtlVRequest& request);
 
+  ContextArray::iterator FindActiveContext(u32 fd);
+  ContextArray::iterator FindInactiveContext();
+
   static bool LaunchIOS(u64 ios_title_id);
   static bool LaunchPPCTitle(u64 title_id, bool skip_reload);
   static TitleContext& GetTitleContext();
@@ -241,27 +278,7 @@ private:
 
   u32 m_AccessIdentID = 0;
 
-  // For title installation (ioctls IOCTL_ES_ADDTITLE*).
-  IOS::ES::TMDReader m_addtitle_tmd;
-  u32 m_addtitle_content_id = 0xFFFFFFFF;
-  std::vector<u8> m_addtitle_content_buffer;
-
-  u32 m_caller_uid = 0;
-  u16 m_caller_gid = 0;
-
-  struct TitleExportContext
-  {
-    struct ExportContent
-    {
-      OpenedContent content;
-      std::array<u8, 16> iv{};
-    };
-
-    bool valid = false;
-    IOS::ES::TMDReader tmd;
-    std::vector<u8> title_key;
-    std::map<u32, ExportContent> contents;
-  } m_export_title_context;
+  ContextArray m_contexts;
 };
 }  // namespace Device
 }  // namespace HLE
diff --git a/Source/Core/Core/IOS/ES/Identity.cpp b/Source/Core/Core/IOS/ES/Identity.cpp
index c4b5722ee0..3ae6ba5083 100644
--- a/Source/Core/Core/IOS/ES/Identity.cpp
+++ b/Source/Core/Core/IOS/ES/Identity.cpp
@@ -63,7 +63,7 @@ IPCCommandResult ES::GetConsoleID(const IOCtlVRequest& request)
   return GetDefaultReply(IPC_SUCCESS);
 }
 
-IPCCommandResult ES::Encrypt(const IOCtlVRequest& request)
+IPCCommandResult ES::Encrypt(u32 uid, const IOCtlVRequest& request)
 {
   if (!request.HasNumberOfValidVectors(3, 2))
     return GetDefaultReply(ES_EINVAL);
@@ -85,7 +85,7 @@ IPCCommandResult ES::Encrypt(const IOCtlVRequest& request)
   return GetDefaultReply(IPC_SUCCESS);
 }
 
-IPCCommandResult ES::Decrypt(const IOCtlVRequest& request)
+IPCCommandResult ES::Decrypt(u32 uid, const IOCtlVRequest& request)
 {
   if (!request.HasNumberOfValidVectors(3, 2))
     return GetDefaultReply(ES_EINVAL);
diff --git a/Source/Core/Core/IOS/ES/TitleContents.cpp b/Source/Core/Core/IOS/ES/TitleContents.cpp
index d97b74d7d9..6a5fc64965 100644
--- a/Source/Core/Core/IOS/ES/TitleContents.cpp
+++ b/Source/Core/Core/IOS/ES/TitleContents.cpp
@@ -48,7 +48,7 @@ u32 ES::OpenTitleContent(u32 CFD, u64 TitleID, u16 Index)
   return CFD;
 }
 
-IPCCommandResult ES::OpenTitleContent(const IOCtlVRequest& request)
+IPCCommandResult ES::OpenTitleContent(u32 uid, const IOCtlVRequest& request)
 {
   if (!request.HasNumberOfValidVectors(3, 0))
     return GetDefaultReply(ES_EINVAL);
@@ -64,7 +64,7 @@ IPCCommandResult ES::OpenTitleContent(const IOCtlVRequest& request)
   return GetDefaultReply(CFD);
 }
 
-IPCCommandResult ES::OpenContent(const IOCtlVRequest& request)
+IPCCommandResult ES::OpenContent(u32 uid, const IOCtlVRequest& request)
 {
   if (!request.HasNumberOfValidVectors(1, 0))
     return GetDefaultReply(ES_EINVAL);
@@ -79,7 +79,7 @@ IPCCommandResult ES::OpenContent(const IOCtlVRequest& request)
   return GetDefaultReply(CFD);
 }
 
-IPCCommandResult ES::ReadContent(const IOCtlVRequest& request)
+IPCCommandResult ES::ReadContent(u32 uid, const IOCtlVRequest& request)
 {
   if (!request.HasNumberOfValidVectors(1, 1))
     return GetDefaultReply(ES_EINVAL);
@@ -131,7 +131,7 @@ IPCCommandResult ES::ReadContent(const IOCtlVRequest& request)
   return GetDefaultReply(Size);
 }
 
-IPCCommandResult ES::CloseContent(const IOCtlVRequest& request)
+IPCCommandResult ES::CloseContent(u32 uid, const IOCtlVRequest& request)
 {
   if (!request.HasNumberOfValidVectors(1, 0))
     return GetDefaultReply(ES_EINVAL);
@@ -160,7 +160,7 @@ IPCCommandResult ES::CloseContent(const IOCtlVRequest& request)
   return GetDefaultReply(IPC_SUCCESS);
 }
 
-IPCCommandResult ES::SeekContent(const IOCtlVRequest& request)
+IPCCommandResult ES::SeekContent(u32 uid, const IOCtlVRequest& request)
 {
   if (!request.HasNumberOfValidVectors(3, 0))
     return GetDefaultReply(ES_EINVAL);
diff --git a/Source/Core/Core/IOS/ES/TitleManagement.cpp b/Source/Core/Core/IOS/ES/TitleManagement.cpp
index a01e0f758c..8426b15582 100644
--- a/Source/Core/Core/IOS/ES/TitleManagement.cpp
+++ b/Source/Core/Core/IOS/ES/TitleManagement.cpp
@@ -66,7 +66,7 @@ IPCCommandResult ES::AddTicket(const IOCtlVRequest& request)
   return GetDefaultReply(IPC_SUCCESS);
 }
 
-IPCCommandResult ES::AddTMD(const IOCtlVRequest& request)
+IPCCommandResult ES::AddTMD(Context& context, const IOCtlVRequest& request)
 {
   if (!request.HasNumberOfValidVectors(1, 0))
     return GetDefaultReply(ES_EINVAL);
@@ -76,18 +76,18 @@ IPCCommandResult ES::AddTMD(const IOCtlVRequest& request)
 
   // Ioctlv 0x2b writes the TMD to /tmp/title.tmd (for imports) and doesn't seem to write it
   // to either /import or /title. So here we simply have to set the import TMD.
-  m_addtitle_tmd.SetBytes(std::move(tmd));
+  context.title_import.tmd.SetBytes(std::move(tmd));
   // TODO: validate TMDs and return the proper error code (-1027) if the signature type is invalid.
-  if (!m_addtitle_tmd.IsValid())
+  if (!context.title_import.tmd.IsValid())
     return GetDefaultReply(ES_EINVAL);
 
-  if (!IOS::ES::InitImport(m_addtitle_tmd.GetTitleId()))
+  if (!IOS::ES::InitImport(context.title_import.tmd.GetTitleId()))
     return GetDefaultReply(FS_EIO);
 
   return GetDefaultReply(IPC_SUCCESS);
 }
 
-IPCCommandResult ES::AddTitleStart(const IOCtlVRequest& request)
+IPCCommandResult ES::AddTitleStart(Context& context, const IOCtlVRequest& request)
 {
   if (!request.HasNumberOfValidVectors(4, 0))
     return GetDefaultReply(ES_EINVAL);
@@ -96,19 +96,20 @@ IPCCommandResult ES::AddTitleStart(const IOCtlVRequest& request)
   std::vector<u8> tmd(request.in_vectors[0].size);
   Memory::CopyFromEmu(tmd.data(), request.in_vectors[0].address, request.in_vectors[0].size);
 
-  m_addtitle_tmd.SetBytes(tmd);
-  if (!m_addtitle_tmd.IsValid())
+  context.title_import.tmd.SetBytes(tmd);
+  if (!context.title_import.tmd.IsValid())
   {
     ERROR_LOG(IOS_ES, "Invalid TMD while adding title (size = %zd)", tmd.size());
     return GetDefaultReply(ES_EINVAL);
   }
 
   // Finish a previous import (if it exists).
-  const IOS::ES::TMDReader previous_tmd = IOS::ES::FindImportTMD(m_addtitle_tmd.GetTitleId());
+  const IOS::ES::TMDReader previous_tmd =
+      IOS::ES::FindImportTMD(context.title_import.tmd.GetTitleId());
   if (previous_tmd.IsValid())
     FinishImport(previous_tmd);
 
-  if (!IOS::ES::InitImport(m_addtitle_tmd.GetTitleId()))
+  if (!IOS::ES::InitImport(context.title_import.tmd.GetTitleId()))
     return GetDefaultReply(FS_EIO);
 
   // TODO: check and use the other vectors.
@@ -116,7 +117,7 @@ IPCCommandResult ES::AddTitleStart(const IOCtlVRequest& request)
   return GetDefaultReply(IPC_SUCCESS);
 }
 
-IPCCommandResult ES::AddContentStart(const IOCtlVRequest& request)
+IPCCommandResult ES::AddContentStart(Context& context, const IOCtlVRequest& request)
 {
   if (!request.HasNumberOfValidVectors(2, 0))
     return GetDefaultReply(ES_EINVAL);
@@ -124,28 +125,28 @@ IPCCommandResult ES::AddContentStart(const IOCtlVRequest& request)
   u64 title_id = Memory::Read_U64(request.in_vectors[0].address);
   u32 content_id = Memory::Read_U32(request.in_vectors[1].address);
 
-  if (m_addtitle_content_id != 0xFFFFFFFF)
+  if (context.title_import.content_id != 0xFFFFFFFF)
   {
     ERROR_LOG(IOS_ES, "Trying to add content when we haven't finished adding "
                       "another content. Unsupported.");
     return GetDefaultReply(ES_EINVAL);
   }
-  m_addtitle_content_id = content_id;
+  context.title_import.content_id = content_id;
 
-  m_addtitle_content_buffer.clear();
+  context.title_import.content_buffer.clear();
 
   INFO_LOG(IOS_ES, "IOCTL_ES_ADDCONTENTSTART: title id %016" PRIx64 ", "
                    "content id %08x",
-           title_id, m_addtitle_content_id);
+           title_id, context.title_import.content_id);
 
-  if (!m_addtitle_tmd.IsValid())
+  if (!context.title_import.tmd.IsValid())
     return GetDefaultReply(ES_EINVAL);
 
-  if (title_id != m_addtitle_tmd.GetTitleId())
+  if (title_id != context.title_import.tmd.GetTitleId())
   {
     ERROR_LOG(IOS_ES, "IOCTL_ES_ADDCONTENTSTART: title id %016" PRIx64 " != "
                       "TMD title id %016" PRIx64 ", ignoring",
-              title_id, m_addtitle_tmd.GetTitleId());
+              title_id, context.title_import.tmd.GetTitleId());
   }
 
   // We're supposed to return a "content file descriptor" here, which is
@@ -156,7 +157,7 @@ IPCCommandResult ES::AddContentStart(const IOCtlVRequest& request)
   return GetDefaultReply(content_fd);
 }
 
-IPCCommandResult ES::AddContentData(const IOCtlVRequest& request)
+IPCCommandResult ES::AddContentData(Context& context, const IOCtlVRequest& request)
 {
   if (!request.HasNumberOfValidVectors(2, 0))
     return GetDefaultReply(ES_EINVAL);
@@ -168,7 +169,8 @@ IPCCommandResult ES::AddContentData(const IOCtlVRequest& request)
 
   u8* data_start = Memory::GetPointer(request.in_vectors[1].address);
   u8* data_end = data_start + request.in_vectors[1].size;
-  m_addtitle_content_buffer.insert(m_addtitle_content_buffer.end(), data_start, data_end);
+  context.title_import.content_buffer.insert(context.title_import.content_buffer.end(), data_start,
+                                             data_end);
   return GetDefaultReply(IPC_SUCCESS);
 }
 
@@ -184,22 +186,22 @@ static std::string GetImportContentPath(u64 title_id, u32 content_id)
   return Common::GetImportTitlePath(title_id) + StringFromFormat("/content/%08x.app", content_id);
 }
 
-IPCCommandResult ES::AddContentFinish(const IOCtlVRequest& request)
+IPCCommandResult ES::AddContentFinish(Context& context, const IOCtlVRequest& request)
 {
   if (!request.HasNumberOfValidVectors(1, 0))
     return GetDefaultReply(ES_EINVAL);
 
-  if (m_addtitle_content_id == 0xFFFFFFFF)
+  if (context.title_import.content_id == 0xFFFFFFFF)
     return GetDefaultReply(ES_EINVAL);
 
   u32 content_fd = Memory::Read_U32(request.in_vectors[0].address);
   INFO_LOG(IOS_ES, "IOCTL_ES_ADDCONTENTFINISH: content fd %08x", content_fd);
 
-  if (!m_addtitle_tmd.IsValid())
+  if (!context.title_import.tmd.IsValid())
     return GetDefaultReply(ES_EINVAL);
 
   // Try to find the title key from a pre-installed ticket.
-  IOS::ES::TicketReader ticket = DiscIO::FindSignedTicket(m_addtitle_tmd.GetTitleId());
+  IOS::ES::TicketReader ticket = DiscIO::FindSignedTicket(context.title_import.tmd.GetTitleId());
   if (!ticket.IsValid())
   {
     return GetDefaultReply(ES_NO_TICKET);
@@ -211,16 +213,16 @@ IPCCommandResult ES::AddContentFinish(const IOCtlVRequest& request)
   // The IV for title content decryption is the lower two bytes of the
   // content index, zero extended.
   IOS::ES::Content content_info;
-  if (!m_addtitle_tmd.FindContentById(m_addtitle_content_id, &content_info))
+  if (!context.title_import.tmd.FindContentById(context.title_import.content_id, &content_info))
   {
     return GetDefaultReply(ES_EINVAL);
   }
   u8 iv[16] = {0};
   iv[0] = (content_info.index >> 8) & 0xFF;
   iv[1] = content_info.index & 0xFF;
-  std::vector<u8> decrypted_data(m_addtitle_content_buffer.size());
-  mbedtls_aes_crypt_cbc(&aes_ctx, MBEDTLS_AES_DECRYPT, m_addtitle_content_buffer.size(), iv,
-                        m_addtitle_content_buffer.data(), decrypted_data.data());
+  std::vector<u8> decrypted_data(context.title_import.content_buffer.size());
+  mbedtls_aes_crypt_cbc(&aes_ctx, MBEDTLS_AES_DECRYPT, context.title_import.content_buffer.size(),
+                        iv, context.title_import.content_buffer.data(), decrypted_data.data());
   if (!CheckIfContentHashMatches(decrypted_data, content_info))
   {
     ERROR_LOG(IOS_ES, "AddContentFinish: Hash for content %08x doesn't match", content_info.id);
@@ -235,12 +237,13 @@ IPCCommandResult ES::AddContentFinish(const IOCtlVRequest& request)
   }
   else
   {
-    content_path = GetImportContentPath(m_addtitle_tmd.GetTitleId(), m_addtitle_content_id);
+    content_path = GetImportContentPath(context.title_import.tmd.GetTitleId(),
+                                        context.title_import.content_id);
   }
   File::CreateFullPath(content_path);
 
   const std::string temp_path = Common::RootUserPath(Common::FROM_SESSION_ROOT) +
-                                StringFromFormat("/tmp/%08x.app", m_addtitle_content_id);
+                                StringFromFormat("/tmp/%08x.app", context.title_import.content_id);
   File::CreateFullPath(temp_path);
 
   {
@@ -258,32 +261,33 @@ IPCCommandResult ES::AddContentFinish(const IOCtlVRequest& request)
     return GetDefaultReply(ES_EIO);
   }
 
-  m_addtitle_content_id = 0xFFFFFFFF;
+  context.title_import.content_id = 0xFFFFFFFF;
   return GetDefaultReply(IPC_SUCCESS);
 }
 
-IPCCommandResult ES::AddTitleFinish(const IOCtlVRequest& request)
+IPCCommandResult ES::AddTitleFinish(Context& context, const IOCtlVRequest& request)
 {
-  if (!request.HasNumberOfValidVectors(0, 0) || !m_addtitle_tmd.IsValid())
+  if (!request.HasNumberOfValidVectors(0, 0) || !context.title_import.tmd.IsValid())
     return GetDefaultReply(ES_EINVAL);
 
-  if (!WriteImportTMD(m_addtitle_tmd))
+  if (!WriteImportTMD(context.title_import.tmd))
     return GetDefaultReply(ES_EIO);
 
-  if (!FinishImport(m_addtitle_tmd))
+  if (!FinishImport(context.title_import.tmd))
     return GetDefaultReply(FS_EIO);
 
   INFO_LOG(IOS_ES, "IOCTL_ES_ADDTITLEFINISH");
-  m_addtitle_tmd.SetBytes({});
+  context.title_import.tmd.SetBytes({});
   return GetDefaultReply(IPC_SUCCESS);
 }
 
-IPCCommandResult ES::AddTitleCancel(const IOCtlVRequest& request)
+IPCCommandResult ES::AddTitleCancel(Context& context, const IOCtlVRequest& request)
 {
-  if (!request.HasNumberOfValidVectors(0, 0) || !m_addtitle_tmd.IsValid())
+  if (!request.HasNumberOfValidVectors(0, 0) || !context.title_import.tmd.IsValid())
     return GetDefaultReply(ES_EINVAL);
 
-  const IOS::ES::TMDReader original_tmd = IOS::ES::FindInstalledTMD(m_addtitle_tmd.GetTitleId());
+  const IOS::ES::TMDReader original_tmd =
+      IOS::ES::FindInstalledTMD(context.title_import.tmd.GetTitleId());
   if (!original_tmd.IsValid())
   {
     // This should never happen unless someone messed with the installed TMD directly.
@@ -294,7 +298,7 @@ IPCCommandResult ES::AddTitleCancel(const IOCtlVRequest& request)
   if (!FinishImport(original_tmd))
     return GetDefaultReply(FS_EIO);
 
-  m_addtitle_tmd.SetBytes({});
+  context.title_import.tmd.SetBytes({});
   return GetDefaultReply(IPC_SUCCESS);
 }
 
@@ -363,40 +367,40 @@ IPCCommandResult ES::DeleteTitleContent(const IOCtlVRequest& request)
   return GetDefaultReply(IPC_SUCCESS);
 }
 
-IPCCommandResult ES::ExportTitleInit(const IOCtlVRequest& request)
+IPCCommandResult ES::ExportTitleInit(Context& context, const IOCtlVRequest& request)
 {
   if (!request.HasNumberOfValidVectors(1, 1) || request.in_vectors[0].size != 8)
     return GetDefaultReply(ES_EINVAL);
 
   // No concurrent title import/export is allowed.
-  if (m_export_title_context.valid)
+  if (context.title_export.valid)
     return GetDefaultReply(ES_EINVAL);
 
   const auto tmd = IOS::ES::FindInstalledTMD(Memory::Read_U64(request.in_vectors[0].address));
   if (!tmd.IsValid())
     return GetDefaultReply(FS_ENOENT);
 
-  m_export_title_context.tmd = tmd;
+  context.title_export.tmd = tmd;
 
-  const auto ticket = DiscIO::FindSignedTicket(m_export_title_context.tmd.GetTitleId());
+  const auto ticket = DiscIO::FindSignedTicket(context.title_export.tmd.GetTitleId());
   if (!ticket.IsValid())
     return GetDefaultReply(ES_NO_TICKET);
-  if (ticket.GetTitleId() != m_export_title_context.tmd.GetTitleId())
+  if (ticket.GetTitleId() != context.title_export.tmd.GetTitleId())
     return GetDefaultReply(ES_EINVAL);
 
-  m_export_title_context.title_key = ticket.GetTitleKey();
+  context.title_export.title_key = ticket.GetTitleKey();
 
-  const auto& raw_tmd = m_export_title_context.tmd.GetRawTMD();
+  const auto& raw_tmd = context.title_export.tmd.GetRawTMD();
   if (request.io_vectors[0].size != raw_tmd.size())
     return GetDefaultReply(ES_EINVAL);
 
   Memory::CopyToEmu(request.io_vectors[0].address, raw_tmd.data(), raw_tmd.size());
 
-  m_export_title_context.valid = true;
+  context.title_export.valid = true;
   return GetDefaultReply(IPC_SUCCESS);
 }
 
-IPCCommandResult ES::ExportContentBegin(const IOCtlVRequest& request)
+IPCCommandResult ES::ExportContentBegin(Context& context, const IOCtlVRequest& request)
 {
   if (!request.HasNumberOfValidVectors(2, 0) || request.in_vectors[0].size != 8 ||
       request.in_vectors[1].size != 4)
@@ -405,7 +409,7 @@ IPCCommandResult ES::ExportContentBegin(const IOCtlVRequest& request)
   const u64 title_id = Memory::Read_U64(request.in_vectors[0].address);
   const u32 content_id = Memory::Read_U32(request.in_vectors[1].address);
 
-  if (!m_export_title_context.valid || m_export_title_context.tmd.GetTitleId() != title_id)
+  if (!context.title_export.valid || context.title_export.tmd.GetTitleId() != title_id)
   {
     ERROR_LOG(IOS_ES, "Tried to use ExportContentBegin with an invalid title export context.");
     return GetDefaultReply(ES_EINVAL);
@@ -426,7 +430,7 @@ IPCCommandResult ES::ExportContentBegin(const IOCtlVRequest& request)
   content->m_Data->Open();
 
   u32 cid = 0;
-  while (m_export_title_context.contents.find(cid) != m_export_title_context.contents.end())
+  while (context.title_export.contents.find(cid) != context.title_export.contents.end())
     cid++;
 
   TitleExportContext::ExportContent content_export;
@@ -434,12 +438,12 @@ IPCCommandResult ES::ExportContentBegin(const IOCtlVRequest& request)
   content_export.iv[0] = (content->m_metadata.index >> 8) & 0xFF;
   content_export.iv[1] = content->m_metadata.index & 0xFF;
 
-  m_export_title_context.contents.emplace(cid, content_export);
+  context.title_export.contents.emplace(cid, content_export);
   // IOS returns a content ID which is passed to further content calls.
   return GetDefaultReply(cid);
 }
 
-IPCCommandResult ES::ExportContentData(const IOCtlVRequest& request)
+IPCCommandResult ES::ExportContentData(Context& context, const IOCtlVRequest& request)
 {
   if (!request.HasNumberOfValidVectors(1, 1) || request.in_vectors[0].size != 4 ||
       request.io_vectors[0].size == 0)
@@ -450,8 +454,8 @@ IPCCommandResult ES::ExportContentData(const IOCtlVRequest& request)
   const u32 content_id = Memory::Read_U32(request.in_vectors[0].address);
   const u32 bytes_to_read = request.io_vectors[0].size;
 
-  const auto iterator = m_export_title_context.contents.find(content_id);
-  if (!m_export_title_context.valid || iterator == m_export_title_context.contents.end() ||
+  const auto iterator = context.title_export.contents.find(content_id);
+  if (!context.title_export.valid || iterator == context.title_export.contents.end() ||
       iterator->second.content.m_position >= iterator->second.content.m_content.size)
   {
     return GetDefaultReply(ES_EINVAL);
@@ -479,7 +483,7 @@ IPCCommandResult ES::ExportContentData(const IOCtlVRequest& request)
   std::vector<u8> output(buffer.size());
 
   mbedtls_aes_context aes_ctx;
-  mbedtls_aes_setkey_enc(&aes_ctx, m_export_title_context.title_key.data(), 128);
+  mbedtls_aes_setkey_enc(&aes_ctx, context.title_export.title_key.data(), 128);
   const int ret = mbedtls_aes_crypt_cbc(&aes_ctx, MBEDTLS_AES_ENCRYPT, buffer.size(),
                                         iterator->second.iv.data(), buffer.data(), output.data());
   if (ret != 0)
@@ -494,15 +498,15 @@ IPCCommandResult ES::ExportContentData(const IOCtlVRequest& request)
   return GetDefaultReply(IPC_SUCCESS);
 }
 
-IPCCommandResult ES::ExportContentEnd(const IOCtlVRequest& request)
+IPCCommandResult ES::ExportContentEnd(Context& context, const IOCtlVRequest& request)
 {
   if (!request.HasNumberOfValidVectors(1, 0) || request.in_vectors[0].size != 4)
     return GetDefaultReply(ES_EINVAL);
 
   const u32 content_id = Memory::Read_U32(request.in_vectors[0].address);
 
-  const auto iterator = m_export_title_context.contents.find(content_id);
-  if (!m_export_title_context.valid || iterator == m_export_title_context.contents.end() ||
+  const auto iterator = context.title_export.contents.find(content_id);
+  if (!context.title_export.valid || iterator == context.title_export.contents.end() ||
       iterator->second.content.m_position != iterator->second.content.m_content.size)
   {
     return GetDefaultReply(ES_EINVAL);
@@ -513,16 +517,16 @@ IPCCommandResult ES::ExportContentEnd(const IOCtlVRequest& request)
   const auto& content_loader = AccessContentDevice(iterator->second.content.m_title_id);
   content_loader.GetContentByID(iterator->second.content.m_content.id)->m_Data->Close();
 
-  m_export_title_context.contents.erase(iterator);
+  context.title_export.contents.erase(iterator);
   return GetDefaultReply(IPC_SUCCESS);
 }
 
-IPCCommandResult ES::ExportTitleDone(const IOCtlVRequest& request)
+IPCCommandResult ES::ExportTitleDone(Context& context, const IOCtlVRequest& request)
 {
-  if (!m_export_title_context.valid)
+  if (!context.title_export.valid)
     return GetDefaultReply(ES_EINVAL);
 
-  m_export_title_context.valid = false;
+  context.title_export.valid = false;
   return GetDefaultReply(IPC_SUCCESS);
 }
 }  // namespace Device
diff --git a/Source/Core/Core/IOS/FS/FileIO.cpp b/Source/Core/Core/IOS/FS/FileIO.cpp
index dbc2f02014..4c11d8267c 100644
--- a/Source/Core/Core/IOS/FS/FileIO.cpp
+++ b/Source/Core/Core/IOS/FS/FileIO.cpp
@@ -76,7 +76,7 @@ FileIO::FileIO(u32 device_id, const std::string& device_name)
 {
 }
 
-void FileIO::Close()
+ReturnCode FileIO::Close(u32 fd)
 {
   INFO_LOG(IOS_FILEIO, "FileIO: Close %s (DeviceID=%08x)", m_name.c_str(), m_device_id);
   m_Mode = 0;
@@ -86,6 +86,7 @@ void FileIO::Close()
   m_file.reset();
 
   m_is_active = false;
+  return IPC_SUCCESS;
 }
 
 ReturnCode FileIO::Open(const OpenRequest& request)
diff --git a/Source/Core/Core/IOS/FS/FileIO.h b/Source/Core/Core/IOS/FS/FileIO.h
index 0e5698c5b5..f341208d9c 100644
--- a/Source/Core/Core/IOS/FS/FileIO.h
+++ b/Source/Core/Core/IOS/FS/FileIO.h
@@ -32,7 +32,7 @@ class FileIO : public Device
 public:
   FileIO(u32 device_id, const std::string& device_name);
 
-  void Close() override;
+  ReturnCode Close(u32 fd) override;
   ReturnCode Open(const OpenRequest& request) override;
   IPCCommandResult Seek(const SeekRequest& request) override;
   IPCCommandResult Read(const ReadWriteRequest& request) override;
diff --git a/Source/Core/Core/IOS/IPC.cpp b/Source/Core/Core/IOS/IPC.cpp
index 00d20877f9..2906f207c2 100644
--- a/Source/Core/Core/IOS/IPC.cpp
+++ b/Source/Core/Core/IOS/IPC.cpp
@@ -75,9 +75,7 @@ static std::mutex s_device_map_mutex;
 
 // STATE_TO_SAVE
 constexpr u8 IPC_MAX_FDS = 0x18;
-constexpr u8 ES_MAX_COUNT = 3;
 static std::shared_ptr<Device::Device> s_fdmap[IPC_MAX_FDS];
-static std::shared_ptr<Device::ES> s_es_handles[ES_MAX_COUNT];
 
 using IPCMsgQueue = std::deque<u32>;
 static IPCMsgQueue s_request_queue;  // ppc -> arm
@@ -595,11 +593,7 @@ static void AddStaticDevices()
   AddDevice<Device::STMImmediate>("/dev/stm/immediate");
   AddDevice<Device::STMEventHook>("/dev/stm/eventhook");
   AddDevice<Device::FS>("/dev/fs");
-
-  // IOS allows three ES devices at a time
-  for (auto& es_device : s_es_handles)
-    es_device = AddDevice<Device::ES>("/dev/es");
-
+  AddDevice<Device::ES>("/dev/es");
   AddDevice<Device::DI>("/dev/di");
   AddDevice<Device::NetKDRequest>("/dev/net/kd/request");
   AddDevice<Device::NetKDTime>("/dev/net/kd/time");
@@ -643,7 +637,7 @@ static void Reset()
   {
     if (!device)
       continue;
-    device->Close();
+    device->Close(0);
     device.reset();
   }
 
@@ -701,7 +695,6 @@ bool Reload(const u64 ios_title_id)
 
   AddStaticDevices();
 
-  Device::ES::Init();
   return true;
 }
 
@@ -855,13 +848,6 @@ void DoState(PointerWrap& p)
         }
       }
     }
-
-    for (auto& es_device : s_es_handles)
-    {
-      const u32 handle_id = es_device->GetDeviceID();
-      p.Do(handle_id);
-      es_device = std::static_pointer_cast<Device::ES>(AccessDeviceByID(handle_id));
-    }
   }
   else
   {
@@ -884,24 +870,11 @@ void DoState(PointerWrap& p)
         }
       }
     }
-
-    for (const auto& es_device : s_es_handles)
-    {
-      const u32 handle_id = es_device->GetDeviceID();
-      p.Do(handle_id);
-    }
   }
 }
 
-static std::shared_ptr<Device::Device> GetUnusedESDevice()
-{
-  const auto iterator = std::find_if(std::begin(s_es_handles), std::end(s_es_handles),
-                                     [](const auto& es_device) { return !es_device->IsOpened(); });
-  return (iterator != std::end(s_es_handles)) ? *iterator : nullptr;
-}
-
 // Returns the FD for the newly opened device (on success) or an error code.
-static s32 OpenDevice(const OpenRequest& request)
+static s32 OpenDevice(OpenRequest& request)
 {
   const s32 new_fd = GetFreeDeviceID();
   INFO_LOG(IOS, "Opening %s (mode %d, fd %d)", request.path.c_str(), request.flags, new_fd);
@@ -910,15 +883,10 @@ static s32 OpenDevice(const OpenRequest& request)
     ERROR_LOG(IOS, "Couldn't get a free fd, too many open files");
     return FS_EFDEXHAUSTED;
   }
+  request.fd = new_fd;
 
   std::shared_ptr<Device::Device> device;
-  if (request.path == "/dev/es")
-  {
-    device = GetUnusedESDevice();
-    if (!device)
-      return ES_FD_EXHAUSTED;
-  }
-  else if (request.path.find("/dev/usb/oh0/") == 0 && !GetDeviceByName(request.path))
+  if (request.path.find("/dev/usb/oh0/") == 0 && !GetDeviceByName(request.path))
   {
     device = std::make_shared<Device::OH0Device>(new_fd, request.path);
   }
@@ -961,8 +929,7 @@ static IPCCommandResult HandleCommand(const Request& request)
   {
   case IPC_CMD_CLOSE:
     s_fdmap[request.fd].reset();
-    device->Close();
-    return Device::Device::GetDefaultReply(IPC_SUCCESS);
+    return Device::Device::GetDefaultReply(device->Close(request.fd));
   case IPC_CMD_READ:
     return device->Read(ReadWriteRequest{request.address});
   case IPC_CMD_WRITE:
diff --git a/Source/Core/Core/IOS/SDIO/SDIOSlot0.cpp b/Source/Core/Core/IOS/SDIO/SDIOSlot0.cpp
index 96a2d48219..4987fae39b 100644
--- a/Source/Core/Core/IOS/SDIO/SDIOSlot0.cpp
+++ b/Source/Core/Core/IOS/SDIO/SDIOSlot0.cpp
@@ -83,13 +83,13 @@ ReturnCode SDIOSlot0::Open(const OpenRequest& request)
   return IPC_SUCCESS;
 }
 
-void SDIOSlot0::Close()
+ReturnCode SDIOSlot0::Close(u32 fd)
 {
   m_Card.Close();
   m_BlockLength = 0;
   m_BusWidth = 0;
 
-  m_is_active = false;
+  return Device::Close(fd);
 }
 
 IPCCommandResult SDIOSlot0::IOCtl(const IOCtlRequest& request)
diff --git a/Source/Core/Core/IOS/SDIO/SDIOSlot0.h b/Source/Core/Core/IOS/SDIO/SDIOSlot0.h
index 6fd08a9b16..116625f29b 100644
--- a/Source/Core/Core/IOS/SDIO/SDIOSlot0.h
+++ b/Source/Core/Core/IOS/SDIO/SDIOSlot0.h
@@ -31,7 +31,7 @@ public:
   void DoState(PointerWrap& p) override;
 
   ReturnCode Open(const OpenRequest& request) override;
-  void Close() override;
+  ReturnCode Close(u32 fd) override;
   IPCCommandResult IOCtl(const IOCtlRequest& request) override;
   IPCCommandResult IOCtlV(const IOCtlVRequest& request) override;
 
diff --git a/Source/Core/Core/IOS/STM/STM.cpp b/Source/Core/Core/IOS/STM/STM.cpp
index 1330c42c65..aece7e39fa 100644
--- a/Source/Core/Core/IOS/STM/STM.cpp
+++ b/Source/Core/Core/IOS/STM/STM.cpp
@@ -67,10 +67,10 @@ IPCCommandResult STMImmediate::IOCtl(const IOCtlRequest& request)
   return GetDefaultReply(return_value);
 }
 
-void STMEventHook::Close()
+ReturnCode STMEventHook::Close(u32 fd)
 {
   s_event_hook_request.reset();
-  m_is_active = false;
+  return Device::Close(fd);
 }
 
 IPCCommandResult STMEventHook::IOCtl(const IOCtlRequest& request)
diff --git a/Source/Core/Core/IOS/STM/STM.h b/Source/Core/Core/IOS/STM/STM.h
index 1a2f534d00..6721e3c28c 100644
--- a/Source/Core/Core/IOS/STM/STM.h
+++ b/Source/Core/Core/IOS/STM/STM.h
@@ -55,7 +55,7 @@ class STMEventHook final : public Device
 {
 public:
   STMEventHook(u32 device_id, const std::string& device_name) : Device(device_id, device_name) {}
-  void Close() override;
+  ReturnCode Close(u32 fd) override;
   IPCCommandResult IOCtl(const IOCtlRequest& request) override;
   void DoState(PointerWrap& p) override;
 
diff --git a/Source/Core/Core/IOS/USB/Bluetooth/BTEmu.cpp b/Source/Core/Core/IOS/USB/Bluetooth/BTEmu.cpp
index 901aa11ef8..bf6c1c15d6 100644
--- a/Source/Core/Core/IOS/USB/Bluetooth/BTEmu.cpp
+++ b/Source/Core/Core/IOS/USB/Bluetooth/BTEmu.cpp
@@ -147,7 +147,7 @@ bool BluetoothEmu::RemoteDisconnect(u16 _connectionHandle)
   return SendEventDisconnect(_connectionHandle, 0x13);
 }
 
-void BluetoothEmu::Close()
+ReturnCode BluetoothEmu::Close(u32 fd)
 {
   // Clean up state
   m_ScanEnable = 0;
@@ -156,7 +156,7 @@ void BluetoothEmu::Close()
   m_HCIEndpoint.reset();
   m_ACLEndpoint.reset();
 
-  m_is_active = false;
+  return Device::Close(fd);
 }
 
 IPCCommandResult BluetoothEmu::IOCtlV(const IOCtlVRequest& request)
diff --git a/Source/Core/Core/IOS/USB/Bluetooth/BTEmu.h b/Source/Core/Core/IOS/USB/Bluetooth/BTEmu.h
index 45e42ef45a..efb60cf10d 100644
--- a/Source/Core/Core/IOS/USB/Bluetooth/BTEmu.h
+++ b/Source/Core/Core/IOS/USB/Bluetooth/BTEmu.h
@@ -49,7 +49,7 @@ public:
 
   virtual ~BluetoothEmu();
 
-  void Close() override;
+  ReturnCode Close(u32 fd) override;
   IPCCommandResult IOCtlV(const IOCtlVRequest& request) override;
 
   void Update() override;
diff --git a/Source/Core/Core/IOS/USB/Bluetooth/BTReal.cpp b/Source/Core/Core/IOS/USB/Bluetooth/BTReal.cpp
index cba2a3f394..25633158c1 100644
--- a/Source/Core/Core/IOS/USB/Bluetooth/BTReal.cpp
+++ b/Source/Core/Core/IOS/USB/Bluetooth/BTReal.cpp
@@ -149,7 +149,7 @@ ReturnCode BluetoothReal::Open(const OpenRequest& request)
   return IPC_SUCCESS;
 }
 
-void BluetoothReal::Close()
+ReturnCode BluetoothReal::Close(u32 fd)
 {
   if (m_handle)
   {
@@ -159,7 +159,7 @@ void BluetoothReal::Close()
     m_handle = nullptr;
   }
 
-  m_is_active = false;
+  return Device::Close(fd);
 }
 
 IPCCommandResult BluetoothReal::IOCtlV(const IOCtlVRequest& request)
diff --git a/Source/Core/Core/IOS/USB/Bluetooth/BTReal.h b/Source/Core/Core/IOS/USB/Bluetooth/BTReal.h
index dc1679925a..3acc462fc0 100644
--- a/Source/Core/Core/IOS/USB/Bluetooth/BTReal.h
+++ b/Source/Core/Core/IOS/USB/Bluetooth/BTReal.h
@@ -52,7 +52,7 @@ public:
   ~BluetoothReal() override;
 
   ReturnCode Open(const OpenRequest& request) override;
-  void Close() override;
+  ReturnCode Close(u32 fd) override;
   IPCCommandResult IOCtlV(const IOCtlVRequest& request) override;
 
   void DoState(PointerWrap& p) override;
diff --git a/Source/Core/Core/IOS/USB/OH0/OH0Device.cpp b/Source/Core/Core/IOS/USB/OH0/OH0Device.cpp
index 61bbd447db..03b3e7da2c 100644
--- a/Source/Core/Core/IOS/USB/OH0/OH0Device.cpp
+++ b/Source/Core/Core/IOS/USB/OH0/OH0Device.cpp
@@ -68,9 +68,10 @@ ReturnCode OH0Device::Open(const OpenRequest& request)
   return return_code;
 }
 
-void OH0Device::Close()
+ReturnCode OH0Device::Close(u32 fd)
 {
   m_oh0->DeviceClose(m_device_id);
+  return Device::Close(fd);
 }
 
 IPCCommandResult OH0Device::IOCtl(const IOCtlRequest& request)
diff --git a/Source/Core/Core/IOS/USB/OH0/OH0Device.h b/Source/Core/Core/IOS/USB/OH0/OH0Device.h
index 239622d227..c66ccc4b2f 100644
--- a/Source/Core/Core/IOS/USB/OH0/OH0Device.h
+++ b/Source/Core/Core/IOS/USB/OH0/OH0Device.h
@@ -25,7 +25,7 @@ public:
   OH0Device(u32 device_id, const std::string& device_name);
 
   ReturnCode Open(const OpenRequest& request) override;
-  void Close() override;
+  ReturnCode Close(u32 fd) override;
   IPCCommandResult IOCtl(const IOCtlRequest& request) override;
   IPCCommandResult IOCtlV(const IOCtlVRequest& request) override;
   void DoState(PointerWrap& p) override;
diff --git a/Source/Core/Core/State.cpp b/Source/Core/Core/State.cpp
index 41a52669fc..fc2418391e 100644
--- a/Source/Core/Core/State.cpp
+++ b/Source/Core/Core/State.cpp
@@ -71,7 +71,7 @@ static Common::Event g_compressAndDumpStateSyncEvent;
 static std::thread g_save_thread;
 
 // Don't forget to increase this after doing changes on the savestate system
-static const u32 STATE_VERSION = 81;  // Last changed in PR 5317
+static const u32 STATE_VERSION = 82;  // Last changed in PR 5333
 
 // Maps savestate versions to Dolphin versions.
 // Versions after 42 don't need to be added to this list,