mirror of
https://github.com/Atmosphere-NX/Atmosphere
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107 lines
5.1 KiB
C++
107 lines
5.1 KiB
C++
/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <mesosphere.hpp>
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namespace ams::kern::svc {
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/* ============================= Common ============================= */
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namespace {
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constexpr bool IsValidProcessMemoryPermission(ams::svc::MemoryPermission perm) {
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switch (perm) {
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case ams::svc::MemoryPermission_None:
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case ams::svc::MemoryPermission_Read:
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case ams::svc::MemoryPermission_ReadWrite:
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case ams::svc::MemoryPermission_ReadExecute:
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return true;
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default:
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return false;
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}
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}
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Result SetProcessMemoryPermission(ams::svc::Handle process_handle, uint64_t address, uint64_t size, ams::svc::MemoryPermission perm) {
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/* Validate the address/size. */
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R_UNLESS(util::IsAligned(address, PageSize), svc::ResultInvalidAddress());
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R_UNLESS(util::IsAligned(size, PageSize), svc::ResultInvalidSize());
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R_UNLESS(size > 0, svc::ResultInvalidSize());
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R_UNLESS((address < address + size), svc::ResultInvalidCurrentMemory());
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R_UNLESS(address == static_cast<uintptr_t>(address), svc::ResultInvalidCurrentMemory());
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R_UNLESS(size == static_cast<size_t>(size), svc::ResultInvalidCurrentMemory());
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/* Validate the memory permission. */
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R_UNLESS(IsValidProcessMemoryPermission(perm), svc::ResultInvalidNewMemoryPermission());
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/* Get the process from its handle. */
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KScopedAutoObject process = GetCurrentProcess().GetHandleTable().GetObject<KProcess>(process_handle);
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R_UNLESS(process.IsNotNull(), svc::ResultInvalidHandle());
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/* Validate that the address is in range. */
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auto &page_table = process->GetPageTable();
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R_UNLESS(page_table.Contains(address, size), svc::ResultInvalidCurrentMemory());
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/* Set the memory permission. */
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return page_table.SetProcessMemoryPermission(address, size, perm);
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}
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}
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/* ============================= 64 ABI ============================= */
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Result SetProcessMemoryPermission64(ams::svc::Handle process_handle, uint64_t address, uint64_t size, ams::svc::MemoryPermission perm) {
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return SetProcessMemoryPermission(process_handle, address, size, perm);
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}
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Result MapProcessMemory64(ams::svc::Address dst_address, ams::svc::Handle process_handle, uint64_t src_address, ams::svc::Size size) {
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MESOSPHERE_PANIC("Stubbed SvcMapProcessMemory64 was called.");
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}
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Result UnmapProcessMemory64(ams::svc::Address dst_address, ams::svc::Handle process_handle, uint64_t src_address, ams::svc::Size size) {
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MESOSPHERE_PANIC("Stubbed SvcUnmapProcessMemory64 was called.");
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}
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Result MapProcessCodeMemory64(ams::svc::Handle process_handle, uint64_t dst_address, uint64_t src_address, uint64_t size) {
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MESOSPHERE_PANIC("Stubbed SvcMapProcessCodeMemory64 was called.");
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}
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Result UnmapProcessCodeMemory64(ams::svc::Handle process_handle, uint64_t dst_address, uint64_t src_address, uint64_t size) {
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MESOSPHERE_PANIC("Stubbed SvcUnmapProcessCodeMemory64 was called.");
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}
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/* ============================= 64From32 ABI ============================= */
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Result SetProcessMemoryPermission64From32(ams::svc::Handle process_handle, uint64_t address, uint64_t size, ams::svc::MemoryPermission perm) {
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return SetProcessMemoryPermission(process_handle, address, size, perm);
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}
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Result MapProcessMemory64From32(ams::svc::Address dst_address, ams::svc::Handle process_handle, uint64_t src_address, ams::svc::Size size) {
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MESOSPHERE_PANIC("Stubbed SvcMapProcessMemory64From32 was called.");
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}
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Result UnmapProcessMemory64From32(ams::svc::Address dst_address, ams::svc::Handle process_handle, uint64_t src_address, ams::svc::Size size) {
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MESOSPHERE_PANIC("Stubbed SvcUnmapProcessMemory64From32 was called.");
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}
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Result MapProcessCodeMemory64From32(ams::svc::Handle process_handle, uint64_t dst_address, uint64_t src_address, uint64_t size) {
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MESOSPHERE_PANIC("Stubbed SvcMapProcessCodeMemory64From32 was called.");
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}
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Result UnmapProcessCodeMemory64From32(ams::svc::Handle process_handle, uint64_t dst_address, uint64_t src_address, uint64_t size) {
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MESOSPHERE_PANIC("Stubbed SvcUnmapProcessCodeMemory64From32 was called.");
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}
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}
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