mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-12-24 05:25:03 +01:00
76 lines
3.2 KiB
C++
76 lines
3.2 KiB
C++
/*
|
|
* Copyright (c) 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 <stratosphere.hpp>
|
|
#include "ro_nro_utils.hpp"
|
|
#include "ro_random.hpp"
|
|
|
|
namespace ams::ro::impl {
|
|
|
|
namespace {
|
|
|
|
ALWAYS_INLINE size_t SetupNroProcessMemoryRegions(os::ProcessMemoryRegion *regions, u64 nro_heap_address, u64 nro_heap_size, u64 bss_heap_address, u64 bss_heap_size) {
|
|
/* Reset region count. */
|
|
size_t num_regions = 0;
|
|
|
|
/* We always want a region for the nro. */
|
|
regions[num_regions++] = { nro_heap_address, nro_heap_size };
|
|
|
|
/* If we have bss, create a region for bss. */
|
|
if (bss_heap_size > 0) {
|
|
regions[num_regions++] = { bss_heap_address, bss_heap_size };
|
|
}
|
|
|
|
return num_regions;
|
|
}
|
|
|
|
}
|
|
|
|
Result MapNro(u64 *out_base_address, os::NativeHandle process_handle, u64 nro_heap_address, u64 nro_heap_size, u64 bss_heap_address, u64 bss_heap_size) {
|
|
/* Set up the process memory regions. */
|
|
os::ProcessMemoryRegion regions[2];
|
|
const size_t num_regions = SetupNroProcessMemoryRegions(regions, nro_heap_address, nro_heap_size, bss_heap_address, bss_heap_size);
|
|
|
|
/* Re-map the nro/bss as code memory in the destination process. */
|
|
R_TRY_CATCH(os::MapProcessCodeMemory(out_base_address, process_handle, regions, num_regions, ro::impl::GenerateSecureRandom)) {
|
|
R_CONVERT(os::ResultOutOfAddressSpace, ro::ResultOutOfAddressSpace())
|
|
} R_END_TRY_CATCH;
|
|
|
|
R_SUCCEED();
|
|
}
|
|
|
|
Result SetNroPerms(os::NativeHandle process_handle, u64 base_address, u64 rx_size, u64 ro_size, u64 rw_size) {
|
|
const u64 rx_offset = 0;
|
|
const u64 ro_offset = rx_offset + rx_size;
|
|
const u64 rw_offset = ro_offset + ro_size;
|
|
|
|
R_TRY(os::SetProcessMemoryPermission(process_handle, base_address + rx_offset, rx_size, os::MemoryPermission_ReadExecute));
|
|
R_TRY(os::SetProcessMemoryPermission(process_handle, base_address + ro_offset, ro_size, os::MemoryPermission_ReadOnly));
|
|
R_TRY(os::SetProcessMemoryPermission(process_handle, base_address + rw_offset, rw_size, os::MemoryPermission_ReadWrite));
|
|
|
|
R_SUCCEED();
|
|
}
|
|
|
|
Result UnmapNro(os::NativeHandle process_handle, u64 base_address, u64 nro_heap_address, u64 nro_heap_size, u64 bss_heap_address, u64 bss_heap_size) {
|
|
/* Set up the process memory regions. */
|
|
os::ProcessMemoryRegion regions[2];
|
|
const size_t num_regions = SetupNroProcessMemoryRegions(regions, nro_heap_address, nro_heap_size, bss_heap_address, bss_heap_size);
|
|
|
|
/* Unmap the nro/bss. */
|
|
R_RETURN(os::UnmapProcessCodeMemory(process_handle, base_address, regions, num_regions));
|
|
}
|
|
|
|
}
|