loader: completely rewrite.

stratosphere/loader/source/ldr_loader_service.cpp

@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2018-2019 Atmosphère-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <limits>
+#include "ldr_arguments.hpp"
+#include "ldr_content_management.hpp"
+#include "ldr_ecs.hpp"
+#include "ldr_process_creation.hpp"
+#include "ldr_launch_record.hpp"
+#include "ldr_loader_service.hpp"
+#include "ldr_ro_manager.hpp"
+
+namespace sts::ldr {
+
+    /* Official commands. */
+    Result LoaderService::CreateProcess(Out<MovedHandle> proc_h, PinId id, u32 flags, CopiedHandle reslimit) {
+        AutoHandle reslimit_holder(reslimit.GetValue());
+        ncm::TitleLocation loc;
+        char path[FS_MAX_PATH];
+
+        /* Get location. */
+        R_TRY(ldr::ro::GetTitleLocation(&loc, id));
+
+        if (loc.storage_id != static_cast<u8>(ncm::StorageId::None)) {
+            R_TRY(ResolveContentPath(path, loc));
+        }
+
+        return ldr::CreateProcess(proc_h.GetHandlePointer(), id, loc, path, flags, reslimit_holder.Get());
+    }
+
+    Result LoaderService::GetProgramInfo(OutPointerWithServerSize<ProgramInfo, 0x1> out_program_info, ncm::TitleLocation loc) {
+        /* Zero output. */
+        ProgramInfo *out = out_program_info.pointer;
+        std::memset(out, 0, sizeof(*out));
+
+        R_TRY(ldr::GetProgramInfo(out, loc));
+
+        if (loc.storage_id != static_cast<u8>(ncm::StorageId::None) && loc.title_id != out->title_id) {
+            char path[FS_MAX_PATH];
+            const ncm::TitleLocation new_loc = ncm::MakeTitleLocation(out->title_id, static_cast<ncm::StorageId>(loc.storage_id));
+
+            R_TRY(ResolveContentPath(path, loc));
+            R_TRY(RedirectContentPath(path, new_loc));
+
+            const auto arg_info = args::Get(loc.title_id);
+            if (arg_info != nullptr) {
+                R_TRY(args::Set(new_loc.title_id, arg_info->args, arg_info->args_size));
+            }
+        }
+
+        return ResultSuccess;
+    }
+
+    Result LoaderService::PinTitle(Out<PinId> out_id, ncm::TitleLocation loc) {
+        return ldr::ro::PinTitle(out_id.GetPointer(), loc);
+    }
+
+    Result LoaderService::UnpinTitle(PinId id) {
+        return ldr::ro::UnpinTitle(id);
+    }
+
+    Result LoaderService::SetTitleArguments(ncm::TitleId title_id, InPointer<char> args, u32 args_size) {
+        return args::Set(title_id, args.pointer, std::min(args.num_elements, size_t(args_size)));
+    }
+
+    Result LoaderService::ClearArguments() {
+        return args::Clear();
+    }
+
+    Result LoaderService::GetProcessModuleInfo(Out<u32> count, OutPointerWithClientSize<ModuleInfo> out, u64 process_id) {
+        if (out.num_elements > std::numeric_limits<int>::max()) {
+            return ResultLoaderInvalidSize;
+        }
+
+        return ldr::ro::GetProcessModuleInfo(count.GetPointer(), out.pointer, out.num_elements, process_id);
+    }
+
+    /* Atmosphere commands. */
+    Result LoaderService::AtmosphereSetExternalContentSource(Out<MovedHandle> out, ncm::TitleId title_id) {
+        return ecs::Set(out.GetHandlePointer(), title_id);
+    }
+
+    void LoaderService::AtmosphereClearExternalContentSource(ncm::TitleId title_id) {
+        R_ASSERT(ecs::Clear(title_id));
+    }
+
+    void LoaderService::AtmosphereHasLaunchedTitle(Out<bool> out, ncm::TitleId title_id) {
+        out.SetValue(ldr::HasLaunchedTitle(title_id));
+    }
+
+}