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git subrepo clone https://github.com/Atmosphere-NX/Atmosphere-libs libraries

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subrepo:
  subdir:   "libraries"
  merged:   "07af583b"
upstream:
  origin:   "https://github.com/Atmosphere-NX/Atmosphere-libs"
  branch:   "master"
  commit:   "07af583b"
git-subrepo:
  version:  "0.4.0"
  origin:   "https://github.com/ingydotnet/git-subrepo"
  commit:   "5d6aba9"
This commit is contained in:
Michael Scire 2019-12-09 03:57:37 -08:00 • committed by SciresM
parent 28717bfd27
commit 0105455086
294 changed files with 29915 additions and 0 deletions
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87
libraries/libstratosphere/source/cfg/cfg_privileged_process.cpp Normal file
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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/>.
*/
#include <stratosphere.hpp>
namespace ams::cfg {
namespace {
/* Convenience definitions. */
constexpr os::ProcessId InitialProcessIdMinDeprecated = {0x00};
constexpr os::ProcessId InitialProcessIdMaxDeprecated = {0x50};
/* Privileged process globals. */
os::Mutex g_lock;
bool g_got_privileged_process_status = false;
os::ProcessId g_min_initial_process_id = os::InvalidProcessId, g_max_initial_process_id = os::InvalidProcessId;
os::ProcessId g_cur_process_id = os::InvalidProcessId;
/* SD card helpers. */
void GetPrivilegedProcessIdRange(os::ProcessId *out_min, os::ProcessId *out_max) {
os::ProcessId min = os::InvalidProcessId, max = os::InvalidProcessId;
if (hos::GetVersion() >= hos::Version_500) {
/* On 5.0.0+, we can get precise limits from svcGetSystemInfo. */
R_ASSERT(svcGetSystemInfo(reinterpret_cast<u64 *>(&min), SystemInfoType_InitialProcessIdRange, INVALID_HANDLE, InitialProcessIdRangeInfo_Minimum));
R_ASSERT(svcGetSystemInfo(reinterpret_cast<u64 *>(&max), SystemInfoType_InitialProcessIdRange, INVALID_HANDLE, InitialProcessIdRangeInfo_Maximum));
} else if (hos::GetVersion() >= hos::Version_400) {
/* On 4.0.0-4.1.0, we can get the precise limits from normal svcGetInfo. */
R_ASSERT(svcGetInfo(reinterpret_cast<u64 *>(&min), InfoType_InitialProcessIdRange, INVALID_HANDLE, InitialProcessIdRangeInfo_Minimum));
R_ASSERT(svcGetInfo(reinterpret_cast<u64 *>(&max), InfoType_InitialProcessIdRange, INVALID_HANDLE, InitialProcessIdRangeInfo_Maximum));
} else {
/* On < 4.0.0, we just use hardcoded extents. */
min = InitialProcessIdMinDeprecated;
max = InitialProcessIdMaxDeprecated;
}
*out_min = min;
*out_max = max;
}
void GetPrivilegedProcessStatus() {
GetPrivilegedProcessIdRange(&g_min_initial_process_id, &g_max_initial_process_id);
g_cur_process_id = os::GetCurrentProcessId();
g_got_privileged_process_status = true;
}
}
/* Privileged Process utilities. */
bool IsInitialProcess() {
std::scoped_lock lk(g_lock);
/* If we've not detected, do detection. */
if (!g_got_privileged_process_status) {
GetPrivilegedProcessStatus();
}
/* Determine if we're privileged, and return. */
return g_min_initial_process_id <= g_cur_process_id && g_cur_process_id <= g_max_initial_process_id;
}
void GetInitialProcessRange(os::ProcessId *out_min, os::ProcessId *out_max) {
std::scoped_lock lk(g_lock);
/* If we've not detected, do detection. */
if (!g_got_privileged_process_status) {
GetPrivilegedProcessStatus();
}
*out_min = g_min_initial_process_id;
*out_max = g_max_initial_process_id;
}
}