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			604 lines
		
	
	
		
			27 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			604 lines
		
	
	
		
			27 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
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|  * Copyright (c) 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 <stratosphere.hpp>
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| #include "ro_nrr_utils.hpp"
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| #include "ro_nro_utils.hpp"
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| #include "ro_patcher.hpp"
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| #include "ro_random.hpp"
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| #include "ro_service_impl.hpp"
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| 
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| namespace ams::ro::impl {
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| 
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|     namespace {
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| 
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|         /* Convenience definitions. */
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|         constexpr size_t MaxSessions = 0x3;  /* 2 official sessions (applet + application, 1 homebrew session). */
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|         constexpr size_t MaxNrrInfos = 0x40;
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|         constexpr size_t MaxNroInfos = 0x40;
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| 
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|         /* Types. */
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|         struct Sha256Hash {
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|             u8 hash[crypto::Sha256Generator::HashSize];
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| 
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|             bool operator==(const Sha256Hash &o) const {
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|                 return std::memcmp(this, std::addressof(o), sizeof(*this)) == 0;
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|             }
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|             bool operator!=(const Sha256Hash &o) const {
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|                 return std::memcmp(this, std::addressof(o), sizeof(*this)) != 0;
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|             }
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|             bool operator<(const Sha256Hash &o) const {
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|                 return std::memcmp(this, std::addressof(o), sizeof(*this)) < 0;
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|             }
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|             bool operator>(const Sha256Hash &o) const {
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|                 return std::memcmp(this, std::addressof(o), sizeof(*this)) > 0;
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|             }
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|         };
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|         static_assert(sizeof(Sha256Hash) == sizeof(Sha256Hash::hash));
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| 
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|         struct NroInfo {
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|             u64 base_address;
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|             u64 nro_heap_address;
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|             u64 nro_heap_size;
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|             u64 bss_heap_address;
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|             u64 bss_heap_size;
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|             u64 code_size;
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|             u64 rw_size;
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|             ModuleId module_id;
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|         };
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| 
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|         struct NrrInfo {
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|             const NrrHeader *mapped_header;
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|             u64 nrr_heap_address;
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|             u64 nrr_heap_size;
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|             u64 mapped_code_address;
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| 
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|             /* Verification. */
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|             u32 cached_signed_area_size;
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|             u32 cached_hashes_offset;
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|             u32 cached_num_hashes;
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|             u8  cached_signed_area[sizeof(NrrHeader) - NrrHeader::GetSignedAreaOffset()];
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|             Sha256Hash signed_area_hash;
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|         };
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| 
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|         struct ProcessContext {
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|             private:
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|                 bool m_nro_in_use[MaxNroInfos]{};
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|                 bool m_nrr_in_use[MaxNrrInfos]{};
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|                 NroInfo m_nro_infos[MaxNroInfos]{};
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|                 NrrInfo m_nrr_infos[MaxNrrInfos]{};
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|                 os::NativeHandle m_process_handle = os::InvalidNativeHandle;
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|                 os::ProcessId m_process_id = os::InvalidProcessId;
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|                 bool m_in_use{};
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|             public:
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|                 constexpr ProcessContext() = default;
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| 
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|                 void Initialize(os::NativeHandle process_handle, os::ProcessId process_id) {
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|                     AMS_ABORT_UNLESS(!m_in_use);
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| 
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|                     std::memset(m_nro_in_use, 0, sizeof(m_nro_in_use));
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|                     std::memset(m_nrr_in_use, 0, sizeof(m_nrr_in_use));
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|                     std::memset(m_nro_infos, 0, sizeof(m_nro_infos));
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|                     std::memset(m_nrr_infos, 0, sizeof(m_nrr_infos));
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| 
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|                     m_process_handle = process_handle;
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|                     m_process_id     = process_id;
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|                     m_in_use         = true;
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|                 }
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| 
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|                 void Finalize() {
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|                     AMS_ABORT_UNLESS(m_in_use);
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| 
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|                     if (m_process_handle != os::InvalidNativeHandle) {
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|                         for (size_t i = 0; i < MaxNrrInfos; i++) {
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|                             if (m_nrr_in_use[i]) {
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|                                 UnmapNrr(m_process_handle, m_nrr_infos[i].mapped_header, m_nrr_infos[i].nrr_heap_address, m_nrr_infos[i].nrr_heap_size, m_nrr_infos[i].mapped_code_address);
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|                             }
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|                         }
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|                         os::CloseNativeHandle(m_process_handle);
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|                     }
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| 
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|                     std::memset(m_nro_in_use, 0, sizeof(m_nro_in_use));
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|                     std::memset(m_nrr_in_use, 0, sizeof(m_nrr_in_use));
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|                     std::memset(m_nro_infos, 0, sizeof(m_nro_infos));
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|                     std::memset(m_nrr_infos, 0, sizeof(m_nrr_infos));
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| 
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|                     m_process_handle = os::InvalidNativeHandle;
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|                     m_process_id     = os::InvalidProcessId;
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| 
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|                     m_in_use         = false;
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|                 }
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| 
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|                 os::NativeHandle GetProcessHandle() const {
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|                     return m_process_handle;
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|                 }
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| 
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|                 os::ProcessId GetProcessId() const {
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|                     return m_process_id;
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|                 }
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| 
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|                 bool IsFree() const {
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|                     return !m_in_use;
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|                 }
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| 
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|                 ncm::ProgramId GetProgramId(os::NativeHandle other_process_h) const {
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|                     /* Automatically select a handle, allowing for override. */
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|                     if (other_process_h != os::InvalidNativeHandle) {
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|                         return os::GetProgramId(other_process_h);
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|                     } else {
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|                         return os::GetProgramId(m_process_handle);
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|                     }
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|                 }
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| 
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|                 Result GetNrrInfoByAddress(NrrInfo **out, u64 nrr_heap_address) {
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|                     for (size_t i = 0; i < MaxNrrInfos; i++) {
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|                         if (m_nrr_in_use[i] && m_nrr_infos[i].nrr_heap_address == nrr_heap_address) {
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|                             if (out != nullptr) {
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|                                 *out = m_nrr_infos + i;
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|                             }
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|                             R_SUCCEED();
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|                         }
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|                     }
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|                     R_THROW(ro::ResultNotRegistered());
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|                 }
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| 
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|                 Result GetFreeNrrInfo(NrrInfo **out) {
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|                     for (size_t i = 0; i < MaxNrrInfos; i++) {
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|                         if (!m_nrr_in_use[i]) {
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|                             if (out != nullptr) {
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|                                 *out = m_nrr_infos + i;
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|                             }
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|                             R_SUCCEED();
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|                         }
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|                     }
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|                     R_THROW(ro::ResultTooManyNrr());
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|                 }
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| 
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|                 Result GetNroInfoByAddress(NroInfo **out, u64 nro_address) {
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|                     for (size_t i = 0; i < MaxNroInfos; i++) {
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|                         if (m_nro_in_use[i] && m_nro_infos[i].base_address == nro_address) {
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|                             if (out != nullptr) {
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|                                 *out = m_nro_infos + i;
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|                             }
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|                             R_SUCCEED();
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|                         }
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|                     }
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|                     R_THROW(ro::ResultNotLoaded());
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|                 }
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| 
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|                 Result GetNroInfoByModuleId(NroInfo **out, const ModuleId *module_id) {
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|                     for (size_t i = 0; i < MaxNroInfos; i++) {
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|                         if (m_nro_in_use[i] && std::memcmp(std::addressof(m_nro_infos[i].module_id), module_id, sizeof(*module_id)) == 0) {
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|                             if (out != nullptr) {
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|                                 *out = m_nro_infos + i;
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|                             }
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|                             R_SUCCEED();
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|                         }
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|                     }
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|                     R_THROW(ro::ResultNotLoaded());
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|                 }
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| 
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|                 Result GetFreeNroInfo(NroInfo **out) {
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|                     for (size_t i = 0; i < MaxNroInfos; i++) {
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|                         if (!m_nro_in_use[i]) {
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|                             if (out != nullptr) {
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|                                 *out = m_nro_infos + i;
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|                             }
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|                             R_SUCCEED();
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|                         }
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|                     }
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|                     R_THROW(ro::ResultTooManyNro());
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|                 }
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| 
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|                 Result ValidateHasNroHash(const NroHeader *nro_header) const {
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|                     /* Calculate hash. */
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|                     Sha256Hash hash;
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|                     crypto::GenerateSha256(std::addressof(hash), sizeof(hash), nro_header, nro_header->GetSize());
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| 
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|                     for (size_t i = 0; i < MaxNrrInfos; i++) {
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|                         /* Ensure we only check NRRs that are used. */
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|                         if (!m_nrr_in_use[i]) {
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|                             continue;
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|                         }
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| 
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|                         /* Get the mapped header, ensure that it has hashes. */
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|                         const NrrHeader *mapped_nrr_header = m_nrr_infos[i].mapped_header;
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|                         const size_t mapped_num_hashes = mapped_nrr_header->GetNumHashes();
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|                         if (mapped_num_hashes == 0) {
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|                             continue;
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|                         }
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| 
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|                         /* Locate the hash within the mapped array. */
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|                         const Sha256Hash *mapped_nro_hashes_start = reinterpret_cast<const Sha256Hash *>(mapped_nrr_header->GetHashes());
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|                         const Sha256Hash *mapped_nro_hashes_end   = mapped_nro_hashes_start + mapped_nrr_header->GetNumHashes();
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| 
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|                         const Sha256Hash *mapped_lower_bound = std::lower_bound(mapped_nro_hashes_start, mapped_nro_hashes_end, hash);
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|                         if (mapped_lower_bound == mapped_nro_hashes_end || (*mapped_lower_bound != hash)) {
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|                             continue;
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|                         }
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| 
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|                         /* Check that the hash entry is valid, since our heuristic passed. */
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|                         const void *nrr_hash          = std::addressof(m_nrr_infos[i].signed_area_hash);
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|                         const void *signed_area       = m_nrr_infos[i].cached_signed_area;
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|                         const size_t signed_area_size = m_nrr_infos[i].cached_signed_area_size;
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|                         const size_t hashes_offset    = m_nrr_infos[i].cached_hashes_offset;
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|                         const size_t num_hashes       = m_nrr_infos[i].cached_num_hashes;
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|                         const u8 *hash_table          = reinterpret_cast<const u8 *>(mapped_nro_hashes_start);
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|                         if (!ValidateNrrHashTableEntry(signed_area, signed_area_size, hashes_offset, num_hashes, nrr_hash, hash_table, std::addressof(hash))) {
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|                             continue;
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|                         }
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| 
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|                         /* The hash is valid! */
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|                         R_SUCCEED();
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|                     }
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| 
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|                     R_THROW(ro::ResultNotAuthorized());
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|                 }
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| 
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|                 Result ValidateNro(ModuleId *out_module_id, u64 *out_rx_size, u64 *out_ro_size, u64 *out_rw_size, u64 base_address, u64 expected_nro_size, u64 expected_bss_size) {
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|                     /* Map the NRO. */
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|                     void *mapped_memory = nullptr;
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|                     R_TRY_CATCH(os::MapProcessMemory(std::addressof(mapped_memory), m_process_handle, base_address, expected_nro_size, ro::impl::GenerateSecureRandom)) {
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|                         R_CONVERT(os::ResultOutOfAddressSpace, ro::ResultOutOfAddressSpace())
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|                     } R_END_TRY_CATCH;
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| 
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|                     /* When we're done, unmap the memory. */
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|                     ON_SCOPE_EXIT { os::UnmapProcessMemory(mapped_memory, m_process_handle, base_address, expected_nro_size); };
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| 
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|                     /* Validate header. */
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|                     const NroHeader *header = static_cast<const NroHeader *>(mapped_memory);
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|                     R_UNLESS(header->IsMagicValid(), ro::ResultInvalidNro());
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| 
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|                     /* Read sizes from header. */
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|                     const u64 nro_size = header->GetSize();
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|                     const u64 text_ofs = header->GetTextOffset();
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|                     const u64 text_size = header->GetTextSize();
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|                     const u64 ro_ofs = header->GetRoOffset();
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|                     const u64 ro_size = header->GetRoSize();
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|                     const u64 rw_ofs = header->GetRwOffset();
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|                     const u64 rw_size = header->GetRwSize();
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|                     const u64 bss_size = header->GetBssSize();
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| 
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|                     /* Validate sizes meet expected. */
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|                     R_UNLESS(nro_size == expected_nro_size, ro::ResultInvalidNro());
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|                     R_UNLESS(bss_size == expected_bss_size, ro::ResultInvalidNro());
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| 
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|                     /* Validate all sizes are aligned. */
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|                     R_UNLESS(util::IsAligned(text_size, os::MemoryPageSize), ro::ResultInvalidNro());
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|                     R_UNLESS(util::IsAligned(ro_size,   os::MemoryPageSize), ro::ResultInvalidNro());
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|                     R_UNLESS(util::IsAligned(rw_size,   os::MemoryPageSize), ro::ResultInvalidNro());
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|                     R_UNLESS(util::IsAligned(bss_size,  os::MemoryPageSize), ro::ResultInvalidNro());
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| 
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|                     /* Validate sections are in order. */
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|                     R_UNLESS(text_ofs <= ro_ofs, ro::ResultInvalidNro());
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|                     R_UNLESS(ro_ofs   <= rw_ofs, ro::ResultInvalidNro());
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| 
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|                     /* Validate sections are sequential and contiguous. */
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|                     R_UNLESS(text_ofs == 0,                    ro::ResultInvalidNro());
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|                     R_UNLESS(text_ofs + text_size == ro_ofs,   ro::ResultInvalidNro());
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|                     R_UNLESS(ro_ofs + ro_size     == rw_ofs,   ro::ResultInvalidNro());
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|                     R_UNLESS(rw_ofs + rw_size     == nro_size, ro::ResultInvalidNro());
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| 
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|                     /* Verify NRO hash. */
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|                     R_TRY(this->ValidateHasNroHash(header));
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| 
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|                     /* Check if NRO has already been loaded. */
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|                     const ModuleId *module_id = header->GetModuleId();
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|                     R_UNLESS(R_FAILED(this->GetNroInfoByModuleId(nullptr, module_id)), ro::ResultAlreadyLoaded());
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| 
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|                     /* Apply patches to NRO. */
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|                     LocateAndApplyIpsPatchesToModule(module_id, static_cast<u8 *>(mapped_memory), nro_size);
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| 
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|                     /* Copy to output. */
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|                     *out_module_id = *module_id;
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|                     *out_rx_size = text_size;
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|                     *out_ro_size = ro_size;
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|                     *out_rw_size = rw_size;
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|                     R_SUCCEED();
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|                 }
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| 
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|                 void SetNrrInfoInUse(const NrrInfo *info, bool in_use) {
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|                     AMS_ASSERT(std::addressof(m_nrr_infos[0]) <= info && info <= std::addressof(m_nrr_infos[MaxNrrInfos - 1]));
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|                     const size_t index = info - std::addressof(m_nrr_infos[0]);
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|                     m_nrr_in_use[index] = in_use;
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|                 }
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| 
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|                 void SetNroInfoInUse(const NroInfo *info, bool in_use) {
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|                     AMS_ASSERT(std::addressof(m_nro_infos[0]) <= info && info <= std::addressof(m_nro_infos[MaxNroInfos - 1]));
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|                     const size_t index = info - std::addressof(m_nro_infos[0]);
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|                     m_nro_in_use[index] = in_use;
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|                 }
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| 
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|                 void GetProcessModuleInfo(u32 *out_count, ldr::ModuleInfo *out_infos, size_t max_out_count) const {
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|                     size_t count = 0;
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| 
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|                     for (size_t i = 0; i < MaxNroInfos && count < max_out_count; i++) {
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|                         if (!m_nro_in_use[i]) {
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|                             continue;
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|                         }
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| 
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|                         const NroInfo *nro_info = m_nro_infos + i;
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| 
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|                         /* Just copy out the info. */
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|                         auto &out_info = out_infos[count++];
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| 
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|                         std::memcpy(out_info.module_id, nro_info->module_id.data, sizeof(out_info.module_id));
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|                         out_info.address = nro_info->base_address;
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|                         out_info.size    = nro_info->nro_heap_size + nro_info->bss_heap_size;
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|                     }
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| 
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|                     *out_count = static_cast<u32>(count);
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|                 }
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|         };
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| 
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|         /* Globals. */
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|         constinit ProcessContext g_process_contexts[MaxSessions] = {};
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|         constinit bool g_is_development_hardware = false;
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|         constinit bool g_is_development_function_enabled = false;
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| 
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|         /* Context Helpers. */
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|         ProcessContext *GetContextById(size_t context_id) {
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|             if (context_id == InvalidContextId) {
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|                 return nullptr;
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|             }
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| 
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|             AMS_ABORT_UNLESS(context_id < MaxSessions);
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|             return g_process_contexts + context_id;
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|         }
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| 
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|         ProcessContext *GetContextByProcessId(os::ProcessId process_id) {
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|             for (size_t i = 0; i < MaxSessions; i++) {
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|                 if (g_process_contexts[i].GetProcessId() == process_id) {
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|                     return g_process_contexts + i;
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|                 }
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|             }
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|             return nullptr;
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|         }
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| 
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|         size_t AllocateContext(os::NativeHandle process_handle, os::ProcessId process_id) {
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|             /* Find a free process context. */
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|             for (size_t i = 0; i < MaxSessions; i++) {
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|                 ProcessContext *context = g_process_contexts + i;
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| 
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|                 if (context->IsFree()) {
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|                     context->Initialize(process_handle, process_id);
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|                     return i;
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|                 }
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|             }
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|             /* Failure to find a free context is actually an abort condition. */
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|             AMS_ABORT_UNLESS(false);
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|         }
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| 
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|         void FreeContext(size_t context_id) {
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|             if (ProcessContext *context = GetContextById(context_id); context != nullptr) {
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|                 context->Finalize();
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|             }
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|         }
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| 
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|         constexpr inline Result ValidateAddressAndNonZeroSize(u64 address, u64 size) {
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|             R_UNLESS(util::IsAligned(address, os::MemoryPageSize), ro::ResultInvalidAddress());
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|             R_UNLESS(size != 0,                                    ro::ResultInvalidSize());
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|             R_UNLESS(util::IsAligned(size, os::MemoryPageSize),    ro::ResultInvalidSize());
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|             R_UNLESS(address < address + size,                     ro::ResultInvalidSize());
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|             R_SUCCEED();
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|         }
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| 
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|         constexpr inline Result ValidateAddressAndSize(u64 address, u64 size) {
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|             R_UNLESS(util::IsAligned(address, os::MemoryPageSize), ro::ResultInvalidAddress());
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|             R_UNLESS(util::IsAligned(size, os::MemoryPageSize),    ro::ResultInvalidSize());
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|             R_UNLESS(size == 0 || address < address + size,        ro::ResultInvalidSize());
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|             R_SUCCEED();
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|         }
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| 
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|     }
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| 
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|     /* Access utilities. */
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|     void SetDevelopmentHardware(bool is_development_hardware) {
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|         g_is_development_hardware = is_development_hardware;
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|     }
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| 
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|     void SetDevelopmentFunctionEnabled(bool is_development_function_enabled) {
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|         g_is_development_function_enabled = is_development_function_enabled;
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|     }
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| 
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|     bool IsDevelopmentHardware() {
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|         return g_is_development_hardware;
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|     }
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| 
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|     bool IsDevelopmentFunctionEnabled() {
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|         return g_is_development_function_enabled;
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|     }
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| 
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|     bool ShouldEaseNroRestriction() {
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|         /* Retrieve whether we should ease restrictions from set:sys. */
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|         u8 should_ease = 0;
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|         if (settings::fwdbg::GetSettingsItemValue(std::addressof(should_ease), sizeof(should_ease), "ro", "ease_nro_restriction") != sizeof(should_ease)) {
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|             return false;
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|         }
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| 
 | |
|         /* Nintendo only allows easing restriction on dev, we will allow on production, as well. */
 | |
|         /* should_ease &= IsDevelopmentFunctionEnabled(); */
 | |
|         return should_ease != 0;
 | |
|     }
 | |
| 
 | |
|     /* Context utilities. */
 | |
|     Result RegisterProcess(size_t *out_context_id, sf::NativeHandle &&process_handle, os::ProcessId process_id) {
 | |
|         /* Validate process handle. */
 | |
|         {
 | |
|             /* Validate handle is a valid process handle. */
 | |
|             os::ProcessId handle_pid;
 | |
|             R_UNLESS(R_SUCCEEDED(os::GetProcessId(std::addressof(handle_pid), process_handle.GetOsHandle())), ro::ResultInvalidProcess());
 | |
| 
 | |
|             /* Validate process id. */
 | |
|             R_UNLESS(handle_pid == process_id, ro::ResultInvalidProcess());
 | |
|         }
 | |
| 
 | |
|         /* Check if a process context already exists. */
 | |
|         R_UNLESS(GetContextByProcessId(process_id) == nullptr, ro::ResultInvalidSession());
 | |
| 
 | |
|         /* Allocate a context to manage the process handle. */
 | |
|         *out_context_id = AllocateContext(process_handle.GetOsHandle(), process_id);
 | |
|         process_handle.Detach();
 | |
| 
 | |
|         R_SUCCEED();
 | |
|     }
 | |
| 
 | |
|     Result ValidateProcess(size_t context_id, os::ProcessId process_id) {
 | |
|         const ProcessContext *ctx = GetContextById(context_id);
 | |
|         R_UNLESS(ctx != nullptr,                    ro::ResultInvalidProcess());
 | |
|         R_UNLESS(ctx->GetProcessId() == process_id, ro::ResultInvalidProcess());
 | |
|         R_SUCCEED();
 | |
|     }
 | |
| 
 | |
|     void UnregisterProcess(size_t context_id) {
 | |
|         FreeContext(context_id);
 | |
|     }
 | |
| 
 | |
|     /* Service implementations. */
 | |
|     Result RegisterModuleInfo(size_t context_id, os::NativeHandle process_handle, u64 nrr_address, u64 nrr_size, NrrKind nrr_kind, bool enforce_nrr_kind) {
 | |
|         /* Get context. */
 | |
|         ProcessContext *context = GetContextById(context_id);
 | |
|         AMS_ABORT_UNLESS(context != nullptr);
 | |
| 
 | |
|         /* Get program id. */
 | |
|         const ncm::ProgramId program_id = context->GetProgramId(process_handle);
 | |
| 
 | |
|         /* Validate address/size. */
 | |
|         R_TRY(ValidateAddressAndNonZeroSize(nrr_address, nrr_size));
 | |
| 
 | |
|         /* Check we have space for a new NRR. */
 | |
|         NrrInfo *nrr_info = nullptr;
 | |
|         R_TRY(context->GetFreeNrrInfo(std::addressof(nrr_info)));
 | |
| 
 | |
|         /* Prepare to cache the NRR's signature hash. */
 | |
|         Sha256Hash signed_area_hash;
 | |
|         ON_SCOPE_EXIT { crypto::ClearMemory(std::addressof(signed_area_hash), sizeof(signed_area_hash)); };
 | |
| 
 | |
|         /* Map. */
 | |
|         NrrHeader *header = nullptr;
 | |
|         u64 mapped_code_address = 0;
 | |
|         R_TRY(MapAndValidateNrr(std::addressof(header), std::addressof(mapped_code_address), std::addressof(signed_area_hash), sizeof(signed_area_hash), context->GetProcessHandle(), program_id, nrr_address, nrr_size, nrr_kind, enforce_nrr_kind));
 | |
| 
 | |
|         /* Set NRR info. */
 | |
|         context->SetNrrInfoInUse(nrr_info, true);
 | |
|         nrr_info->mapped_header = header;
 | |
|         nrr_info->nrr_heap_address = nrr_address;
 | |
|         nrr_info->nrr_heap_size = nrr_size;
 | |
|         nrr_info->mapped_code_address = mapped_code_address;
 | |
| 
 | |
|         nrr_info->cached_signed_area_size = header->GetSignedAreaSize();
 | |
|         nrr_info->cached_hashes_offset    = header->GetHashesOffset();
 | |
|         nrr_info->cached_num_hashes       = header->GetNumHashes();
 | |
| 
 | |
|         std::memcpy(nrr_info->cached_signed_area, header->GetSignedArea(), std::min(sizeof(nrr_info->cached_signed_area), header->GetHashesOffset() - header->GetSignedAreaOffset()));
 | |
|         std::memcpy(std::addressof(nrr_info->signed_area_hash), std::addressof(signed_area_hash), sizeof(signed_area_hash));
 | |
| 
 | |
|         R_SUCCEED();
 | |
|     }
 | |
| 
 | |
|     Result UnregisterModuleInfo(size_t context_id, u64 nrr_address) {
 | |
|         /* Get context. */
 | |
|         ProcessContext *context = GetContextById(context_id);
 | |
|         AMS_ABORT_UNLESS(context != nullptr);
 | |
| 
 | |
|         /* Validate address. */
 | |
|         R_UNLESS(util::IsAligned(nrr_address, os::MemoryPageSize), ro::ResultInvalidAddress());
 | |
| 
 | |
|         /* Check the NRR is loaded. */
 | |
|         NrrInfo *nrr_info = nullptr;
 | |
|         R_TRY(context->GetNrrInfoByAddress(std::addressof(nrr_info), nrr_address));
 | |
| 
 | |
|         /* Unmap. */
 | |
|         const NrrInfo nrr_backup = *nrr_info;
 | |
|         {
 | |
|             /* Nintendo does this unconditionally, whether or not the actual unmap succeeds. */
 | |
|             context->SetNrrInfoInUse(nrr_info, false);
 | |
|             std::memset(nrr_info, 0, sizeof(*nrr_info));
 | |
|         }
 | |
|         R_RETURN(UnmapNrr(context->GetProcessHandle(), nrr_backup.mapped_header, nrr_backup.nrr_heap_address, nrr_backup.nrr_heap_size, nrr_backup.mapped_code_address));
 | |
|     }
 | |
| 
 | |
|     Result MapManualLoadModuleMemory(u64 *out_address, size_t context_id, u64 nro_address, u64 nro_size, u64 bss_address, u64 bss_size) {
 | |
|         /* Get context. */
 | |
|         ProcessContext *context = GetContextById(context_id);
 | |
|         AMS_ABORT_UNLESS(context != nullptr);
 | |
| 
 | |
|         /* Validate address/size. */
 | |
|         R_TRY(ValidateAddressAndNonZeroSize(nro_address, nro_size));
 | |
|         R_TRY(ValidateAddressAndSize(bss_address, bss_size));
 | |
| 
 | |
|         const u64 total_size = nro_size + bss_size;
 | |
|         R_UNLESS(total_size >= nro_size, ro::ResultInvalidSize());
 | |
|         R_UNLESS(total_size >= bss_size, ro::ResultInvalidSize());
 | |
| 
 | |
|         /* Check we have space for a new NRO. */
 | |
|         NroInfo *nro_info = nullptr;
 | |
|         R_TRY(context->GetFreeNroInfo(std::addressof(nro_info)));
 | |
|         nro_info->nro_heap_address = nro_address;
 | |
|         nro_info->nro_heap_size = nro_size;
 | |
|         nro_info->bss_heap_address = bss_address;
 | |
|         nro_info->bss_heap_size = bss_size;
 | |
| 
 | |
|         /* Map the NRO. */
 | |
|         R_TRY(MapNro(std::addressof(nro_info->base_address), context->GetProcessHandle(), nro_address, nro_size, bss_address, bss_size));
 | |
|         ON_RESULT_FAILURE { UnmapNro(context->GetProcessHandle(), nro_info->base_address, nro_address, nro_size, bss_address, bss_size); };
 | |
| 
 | |
|         /* Validate the NRO (parsing region extents). */
 | |
|         u64 rx_size = 0, ro_size = 0, rw_size = 0;
 | |
|         R_TRY(context->ValidateNro(std::addressof(nro_info->module_id), std::addressof(rx_size), std::addressof(ro_size), std::addressof(rw_size), nro_info->base_address, nro_size, bss_size));
 | |
| 
 | |
|         /* Set NRO perms. */
 | |
|         R_TRY(SetNroPerms(context->GetProcessHandle(), nro_info->base_address, rx_size, ro_size, rw_size + bss_size));
 | |
| 
 | |
|         context->SetNroInfoInUse(nro_info, true);
 | |
|         nro_info->code_size = rx_size + ro_size;
 | |
|         nro_info->rw_size = rw_size;
 | |
|         *out_address = nro_info->base_address;
 | |
|         R_SUCCEED();
 | |
|     }
 | |
| 
 | |
|     Result UnmapManualLoadModuleMemory(size_t context_id, u64 nro_address) {
 | |
|         /* Get context. */
 | |
|         ProcessContext *context = GetContextById(context_id);
 | |
|         AMS_ABORT_UNLESS(context != nullptr);
 | |
| 
 | |
|         /* Validate address. */
 | |
|         R_UNLESS(util::IsAligned(nro_address, os::MemoryPageSize), ro::ResultInvalidAddress());
 | |
| 
 | |
|         /* Check the NRO is loaded. */
 | |
|         NroInfo *nro_info = nullptr;
 | |
|         R_TRY(context->GetNroInfoByAddress(std::addressof(nro_info), nro_address));
 | |
| 
 | |
|         /* Unmap. */
 | |
|         const NroInfo nro_backup = *nro_info;
 | |
|         {
 | |
|             /* Nintendo does this unconditionally, whether or not the actual unmap succeeds. */
 | |
|             context->SetNroInfoInUse(nro_info, false);
 | |
|             std::memset(nro_info, 0, sizeof(*nro_info));
 | |
|         }
 | |
|         R_RETURN(UnmapNro(context->GetProcessHandle(), nro_backup.base_address, nro_backup.nro_heap_address, nro_backup.code_size + nro_backup.rw_size, nro_backup.bss_heap_address, nro_backup.bss_heap_size));
 | |
|     }
 | |
| 
 | |
|     /* Debug service implementations. */
 | |
|     Result GetProcessModuleInfo(u32 *out_count, ldr::ModuleInfo *out_infos, size_t max_out_count, os::ProcessId process_id) {
 | |
|         if (const ProcessContext *context = GetContextByProcessId(process_id); context != nullptr) {
 | |
|             context->GetProcessModuleInfo(out_count, out_infos, max_out_count);
 | |
|         }
 | |
| 
 | |
|         R_SUCCEED();
 | |
|     }
 | |
| 
 | |
| }
 |