Atmosphere/stratosphere/pm/source/pm_main.cpp
2019-07-11 22:24:59 -07:00

162 lines
5.6 KiB
C++

/*
* 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 <cstdlib>
#include <cstdint>
#include <cstring>
#include <malloc.h>
#include <switch.h>
#include <atmosphere.h>
#include <stratosphere.hpp>
#include <stratosphere/cfg.hpp>
#include <stratosphere/sm/sm_manager_api.hpp>
#include "pm_boot_mode_service.hpp"
#include "pm_debug_monitor_service.hpp"
#include "pm_info_service.hpp"
#include "pm_shell_service.hpp"
#include "impl/pm_process_manager.hpp"
extern "C" {
extern u32 __start__;
u32 __nx_applet_type = AppletType_None;
#define INNER_HEAP_SIZE 0x40000
size_t nx_inner_heap_size = INNER_HEAP_SIZE;
char nx_inner_heap[INNER_HEAP_SIZE];
void __libnx_initheap(void);
void __appInit(void);
void __appExit(void);
/* Exception handling. */
alignas(16) u8 __nx_exception_stack[0x1000];
u64 __nx_exception_stack_size = sizeof(__nx_exception_stack);
void __libnx_exception_handler(ThreadExceptionDump *ctx);
u64 __stratosphere_title_id = TitleId_Pm;
void __libstratosphere_exception_handler(AtmosphereFatalErrorContext *ctx);
}
void __libnx_exception_handler(ThreadExceptionDump *ctx) {
StratosphereCrashHandler(ctx);
}
void __libnx_initheap(void) {
void* addr = nx_inner_heap;
size_t size = nx_inner_heap_size;
/* Newlib */
extern char* fake_heap_start;
extern char* fake_heap_end;
fake_heap_start = (char*)addr;
fake_heap_end = (char*)addr + size;
}
namespace {
static constexpr u32 PrivilegedFileAccessHeader[0x1C / sizeof(u32)] = {0x00000001, 0x00000000, 0x80000000, 0x0000001C, 0x00000000, 0x0000001C, 0x00000000};
static constexpr u32 PrivilegedFileAccessControl[0x2C / sizeof(u32)] = {0x00000001, 0x00000000, 0x80000000, 0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF};
static constexpr size_t ProcessCountMax = 0x40;
/* This works around a bug fixed by FS in 4.0.0. */
/* Not doing so will cause KIPs with higher process IDs than 7 to be unable to use filesystem services. */
void RegisterPrivilegedProcessWithFs(u64 process_id) {
fsprUnregisterProgram(process_id);
fsprRegisterProgram(process_id, process_id, FsStorageId_NandSystem, PrivilegedFileAccessHeader, sizeof(PrivilegedFileAccessHeader), PrivilegedFileAccessControl, sizeof(PrivilegedFileAccessControl));
}
void RegisterPrivilegedProcessesWithFs() {
/* Get privileged process range. */
u64 min_priv_process_id = 0, max_priv_process_id = 0;
sts::cfg::GetInitialProcessRange(&min_priv_process_id, &max_priv_process_id);
/* Get list of processes, register all privileged ones. */
u32 num_pids;
u64 pids[ProcessCountMax];
R_ASSERT(svcGetProcessList(&num_pids, pids, ProcessCountMax));
for (size_t i = 0; i < num_pids; i++) {
if (min_priv_process_id <= pids[i] && pids[i] <= max_priv_process_id) {
RegisterPrivilegedProcessWithFs(pids[i]);
}
}
}
}
void __appInit(void) {
SetFirmwareVersionForLibnx();
DoWithSmSession([&]() {
R_ASSERT(fsprInitialize());
/* This works around a bug with process permissions on < 4.0.0. */
RegisterPrivilegedProcessesWithFs();
/* Use AMS manager extension to tell SM that FS has been worked around. */
R_ASSERT(smManagerInitialize());
R_ASSERT(sts::sm::manager::EndInitialDefers());
R_ASSERT(lrInitialize());
R_ASSERT(ldrPmInitialize());
R_ASSERT(splInitialize());
R_ASSERT(fsInitialize());
});
CheckAtmosphereVersion(CURRENT_ATMOSPHERE_VERSION);
}
void __appExit(void) {
/* Cleanup services. */
fsdevUnmountAll();
fsExit();
splExit();
ldrPmExit();
lrExit();
smManagerExit();
fsprExit();
}
int main(int argc, char **argv)
{
/* Initialize process manager implementation. */
R_ASSERT(sts::pm::impl::InitializeProcessManager());
/* Create Server Manager. */
static auto s_server_manager = WaitableManager(1);
/* Create Services. */
/* NOTE: Extra sessions have been added to pm:bm and pm:info to facilitate access by the rest of stratosphere. */
/* Also Note: PM was rewritten in 5.0.0, so the shell and dmnt services are different before/after. */
if (GetRuntimeFirmwareVersion() >= FirmwareVersion_500) {
s_server_manager.AddWaitable(new ServiceServer<sts::pm::shell::ShellService>("pm:shell", 3));
s_server_manager.AddWaitable(new ServiceServer<sts::pm::dmnt::DebugMonitorService>("pm:dmnt", 3));
} else {
s_server_manager.AddWaitable(new ServiceServer<sts::pm::shell::ShellServiceDeprecated>("pm:shell", 3));
s_server_manager.AddWaitable(new ServiceServer<sts::pm::dmnt::DebugMonitorServiceDeprecated>("pm:dmnt", 3));
}
s_server_manager.AddWaitable(new ServiceServer<sts::pm::bm::BootModeService>("pm:bm", 6));
s_server_manager.AddWaitable(new ServiceServer<sts::pm::info::InformationService>("pm:info", 19));
/* Loop forever, servicing our services. */
s_server_manager.Process();
return 0;
}