Atmosphere/stratosphere/ro/source/ro_registration.hpp
2019-04-21 05:28:57 -07:00

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/*
* 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/>.
*/
#pragma once
#include <switch.h>
#include <stratosphere.hpp>
#include "ro_nrr.hpp"
class Registration {
public:
/* NOTE: 2 ldr:ro, 2 ro:1. Nintendo only actually supports 2 total, but we'll be a little more generous. */
static constexpr size_t MaxSessions = 0x4;
static constexpr size_t MaxNrrInfos = 0x40;
static constexpr size_t MaxNroInfos = 0x40;
public:
struct NroHeader {
u32 entrypoint_insn;
u32 mod_offset;
u64 padding;
u32 magic;
u32 _0x14;
u32 nro_size;
u32 _0x1C;
u32 text_offset;
u32 text_size;
u32 ro_offset;
u32 ro_size;
u32 rw_offset;
u32 rw_size;
u32 bss_size;
u32 _0x3C;
unsigned char build_id[0x20];
u8 _0x60[0x20];
};
static_assert(sizeof(NroHeader) == 0x80, "NroHeader definition!");
struct ModuleId {
u8 build_id[0x20];
};
static_assert(sizeof(ModuleId) == sizeof(LoaderModuleInfo::build_id), "ModuleId definition!");
struct NroInfo {
u64 base_address;
u64 nro_heap_address;
u64 nro_heap_size;
u64 bss_heap_address;
u64 bss_heap_size;
u64 code_size;
u64 rw_size;
ModuleId module_id;
};
struct NrrInfo {
NrrHeader *header;
u64 nrr_heap_address;
u64 nrr_heap_size;
u64 mapped_code_address;
};
struct RoProcessContext {
bool nro_in_use[MaxNroInfos];
bool nrr_in_use[MaxNrrInfos];
NroInfo nro_infos[MaxNroInfos];
NrrInfo nrr_infos[MaxNrrInfos];
Handle process_handle;
u64 process_id;
bool in_use;
};
private:
static Result MapAndValidateNrr(NrrHeader **out_header, u64 *out_mapped_code_address, Handle process_handle, u64 title_id, u64 nrr_heap_address, u64 nrr_heap_size, RoModuleType expected_type, bool enforce_type);
static Result UnmapNrr(Handle process_handle, const NrrHeader *header, u64 nrr_heap_address, u64 nrr_heap_size, u64 mapped_code_address);
public:
static void Initialize();
static bool ShouldEaseNroRestriction();
static Result RegisterProcess(RoProcessContext **out_context, Handle process_handle, u64 process_id);
static void UnregisterProcess(RoProcessContext *context);
static Result LoadNrr(RoProcessContext *context, u64 title_id, u64 nrr_address, u64 nrr_size, RoModuleType expected_type, bool enforce_type);
static Result UnloadNrr(RoProcessContext *context, u64 nrr_address);
static Result GetProcessModuleInfo(u32 *out_count, LoaderModuleInfo *out_infos, size_t max_out_count, u64 process_id);
};