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https://github.com/Atmosphere-NX/Atmosphere.git
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b237168ec7
Specifying 0 as the initial entry of a structure is a C-ism. C++ permits using an empty set of braces to signify the same behavior, silencing missing initializer warnings.
148 lines
5.4 KiB
C++
148 lines
5.4 KiB
C++
/*
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* Copyright (c) 2018 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 <switch.h>
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#include <cstdio>
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#include <algorithm>
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#include <stratosphere.hpp>
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#include "ldr_ro_service.hpp"
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#include "ldr_registration.hpp"
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#include "ldr_map.hpp"
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#include "ldr_nro.hpp"
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Result RelocatableObjectsService::LoadNro(Out<u64> load_address, PidDescriptor pid_desc, u64 nro_address, u64 nro_size, u64 bss_address, u64 bss_size) {
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Registration::Process *target_proc = NULL;
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if (!this->has_initialized || this->process_id != pid_desc.pid) {
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return ResultLoaderInvalidProcess;
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}
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if (nro_address & 0xFFF) {
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return ResultLoaderInvalidAddress;
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}
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if (nro_address + nro_size <= nro_address || !nro_size || (nro_size & 0xFFF)) {
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return ResultLoaderInvalidSize;
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}
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if (bss_size && bss_address + bss_size <= bss_address) {
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return ResultLoaderInvalidSize;
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}
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/* Ensure no overflow for combined sizes. */
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if (U64_MAX - nro_size < bss_size) {
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return ResultLoaderInvalidSize;
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}
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target_proc = Registration::GetProcessByProcessId(pid_desc.pid);
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if (target_proc == NULL || (target_proc->owner_ro_service != NULL && (RelocatableObjectsService *)(target_proc->owner_ro_service) != this)) {
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return ResultLoaderInvalidSession;
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}
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target_proc->owner_ro_service = this;
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return NroUtils::LoadNro(target_proc, this->process_handle, nro_address, nro_size, bss_address, bss_size, load_address.GetPointer());
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}
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Result RelocatableObjectsService::UnloadNro(PidDescriptor pid_desc, u64 nro_address) {
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Registration::Process *target_proc = NULL;
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if (!this->has_initialized || this->process_id != pid_desc.pid) {
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return ResultLoaderInvalidProcess;
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}
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if (nro_address & 0xFFF) {
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return ResultLoaderInvalidAddress;
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}
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target_proc = Registration::GetProcessByProcessId(pid_desc.pid);
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if (target_proc == NULL || (target_proc->owner_ro_service != NULL && (RelocatableObjectsService *)(target_proc->owner_ro_service) != this)) {
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return ResultLoaderInvalidSession;
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}
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target_proc->owner_ro_service = this;
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return Registration::RemoveNroInfo(target_proc->index, this->process_handle, nro_address);
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}
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Result RelocatableObjectsService::LoadNrr(PidDescriptor pid_desc, u64 nrr_address, u64 nrr_size) {
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Result rc = ResultSuccess;
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Registration::Process *target_proc = NULL;
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MappedCodeMemory nrr_info = {};
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ON_SCOPE_EXIT {
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if (R_FAILED(rc) && nrr_info.IsActive()) {
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nrr_info.Close();
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}
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};
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if (!this->has_initialized || this->process_id != pid_desc.pid) {
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rc = ResultLoaderInvalidProcess;
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return rc;
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}
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if (nrr_address & 0xFFF) {
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rc = ResultLoaderInvalidAddress;
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return rc;
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}
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if (nrr_address + nrr_size <= nrr_address || !nrr_size || (nrr_size & 0xFFF)) {
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rc = ResultLoaderInvalidSize;
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return rc;
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}
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target_proc = Registration::GetProcessByProcessId(pid_desc.pid);
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if (target_proc == NULL || (target_proc->owner_ro_service != NULL && (RelocatableObjectsService *)(target_proc->owner_ro_service) != this)) {
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rc = ResultLoaderInvalidSession;
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return rc;
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}
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target_proc->owner_ro_service = this;
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if (R_FAILED((rc = nrr_info.Open(this->process_handle, target_proc->is_64_bit_addspace, nrr_address, nrr_size)))) {
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return rc;
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}
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if (R_FAILED((rc = nrr_info.Map()))) {
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return rc;
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}
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rc = NroUtils::ValidateNrrHeader((NroUtils::NrrHeader *)nrr_info.mapped_address, nrr_size, target_proc->title_id);
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if (R_SUCCEEDED(rc)) {
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Registration::AddNrrInfo(target_proc->index, &nrr_info);
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}
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return rc;
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}
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Result RelocatableObjectsService::UnloadNrr(PidDescriptor pid_desc, u64 nrr_address) {
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Registration::Process *target_proc = NULL;
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if (!this->has_initialized || this->process_id != pid_desc.pid) {
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return ResultLoaderInvalidProcess;
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}
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if (nrr_address & 0xFFF) {
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return ResultLoaderInvalidAddress;
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}
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target_proc = Registration::GetProcessByProcessId(pid_desc.pid);
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if (target_proc == NULL || (target_proc->owner_ro_service != NULL && (RelocatableObjectsService *)(target_proc->owner_ro_service) != this)) {
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return ResultLoaderInvalidSession;
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}
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target_proc->owner_ro_service = this;
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return Registration::RemoveNrrInfo(target_proc->index, nrr_address);
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}
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Result RelocatableObjectsService::Initialize(PidDescriptor pid_desc, CopiedHandle process_h) {
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u64 handle_pid;
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if (R_SUCCEEDED(svcGetProcessId(&handle_pid, process_h.handle)) && handle_pid == pid_desc.pid) {
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if (this->has_initialized) {
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svcCloseHandle(this->process_handle);
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}
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this->process_handle = process_h.handle;
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this->process_id = handle_pid;
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this->has_initialized = true;
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return ResultSuccess;
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}
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return ResultLoaderInvalidProcess;
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}
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