mirror of
https://github.com/DarkMatterCore/nxdumptool.git
synced 2024-10-31 07:51:46 +00:00
305 lines
9.7 KiB
C
305 lines
9.7 KiB
C
/*
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* services.c
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*
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* Copyright (c) 2020, DarkMatterCore <pabloacurielz@gmail.com>.
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*
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* This file is part of nxdumptool (https://github.com/DarkMatterCore/nxdumptool).
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*
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* nxdumptool 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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* nxdumptool 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 "utils.h"
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#include "services.h"
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#include "es.h"
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#include "fspusb.h"
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/* Type definitions. */
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typedef bool (*ServiceCondFunction)(void *arg); /* Used to perform a runtime condition check (e.g. system version) before initializing the service. */
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typedef Result (*ServiceInitFunction)(void); /* Used to initialize the service. */
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typedef void (*ServiceCloseFunction)(void); /* Used to close the service. */
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typedef struct {
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bool initialized;
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char name[8];
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ServiceCondFunction cond_func;
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ServiceInitFunction init_func;
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ServiceCloseFunction close_func;
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} ServiceInfo;
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/* Function prototypes. */
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static Result smHasService(bool *out_has_service, SmServiceName name);
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static Result servicesNifmUserInitialize(void);
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static bool servicesClkGetServiceType(void *arg);
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static bool servicesSplCryptoCheckAvailability(void *arg);
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static bool servicesFspUsbCheckAvailability(void *arg);
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/* Global variables. */
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static ServiceInfo g_serviceInfo[] = {
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{ false, "ncm", NULL, &ncmInitialize, &ncmExit },
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{ false, "ns", NULL, &nsInitialize, &nsExit },
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{ false, "csrng", NULL, &csrngInitialize, &csrngExit },
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{ false, "spl:", NULL, &splInitialize, &splExit },
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{ false, "spl:mig", &servicesSplCryptoCheckAvailability, &splCryptoInitialize, &splCryptoExit }, /* Checks if spl:mig is really available (e.g. avoid calling splInitialize twice). */
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{ false, "pm:dmnt", NULL, &pmdmntInitialize, &pmdmntExit },
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{ false, "psm", NULL, &psmInitialize, &psmExit },
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{ false, "nifm:u", NULL, &servicesNifmUserInitialize, &nifmExit },
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{ false, "clk", &servicesClkGetServiceType, NULL, NULL }, /* Placeholder for pcv / clkrst. */
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{ false, "fsp-usb", &servicesFspUsbCheckAvailability, &fspusbInitialize, &fspusbExit }, /* Checks if fsp-usb really is available. */
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{ false, "es", NULL, &esInitialize, &esExit },
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{ false, "set:cal", NULL, &setcalInitialize, &setcalExit }
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};
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static const u32 g_serviceInfoCount = MAX_ELEMENTS(g_serviceInfo);
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static bool g_clkSvcUsePcv = false;
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static ClkrstSession g_clkrstCpuSession = {0}, g_clkrstMemSession = {0};
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static Mutex g_servicesMutex = 0;
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bool servicesInitialize(void)
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{
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mutexLock(&g_servicesMutex);
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Result rc = 0;
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bool ret = true;
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for(u32 i = 0; i < g_serviceInfoCount; i++)
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{
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ServiceInfo *service_info = &(g_serviceInfo[i]);
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/* Check if this service has been already initialized or if it actually has a valid initialize function. */
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if (service_info->initialized || service_info->init_func == NULL) continue;
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/* Check if this service depends on a condition function. */
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if (service_info->cond_func != NULL)
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{
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/* Run the condition function - it will update the current service member. */
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/* Skip this service if the required conditions aren't met. */
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if (!service_info->cond_func(service_info)) continue;
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}
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/* Initialize service. */
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rc = service_info->init_func();
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if (R_FAILED(rc))
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{
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LOGFILE("Failed to initialize %s service! (0x%08X).", service_info->name, rc);
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ret = false;
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break;
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}
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/* Update initialized flag. */
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service_info->initialized = true;
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}
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mutexUnlock(&g_servicesMutex);
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return ret;
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}
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void servicesClose(void)
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{
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mutexLock(&g_servicesMutex);
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for(u32 i = 0; i < g_serviceInfoCount; i++)
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{
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ServiceInfo *service_info = &(g_serviceInfo[i]);
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/* Check if this service has not been initialized, or if it doesn't have a valid close function. */
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if (!service_info->initialized || service_info->close_func == NULL) continue;
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/* Close service. */
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service_info->close_func();
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/* Update initialized flag. */
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service_info->initialized = false;
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}
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mutexUnlock(&g_servicesMutex);
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}
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bool servicesCheckRunningServiceByName(const char *name)
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{
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if (!name || !*name) return false;
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Result rc = 0;
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Handle handle = INVALID_HANDLE;
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SmServiceName service_name = smEncodeName(name);
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bool running = false;
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rc = smRegisterService(&handle, service_name, false, 1);
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if (R_FAILED(rc)) LOGFILE("smRegisterService failed for \"%s\"! (0x%08X).", name, rc);
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running = R_FAILED(rc);
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if (handle != INVALID_HANDLE) svcCloseHandle(handle);
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if (!running) smUnregisterService(service_name);
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return running;
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}
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bool servicesCheckInitializedServiceByName(const char *name)
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{
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mutexLock(&g_servicesMutex);
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bool ret = false;
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if (!name || !*name) goto end;
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size_t name_len = strlen(name);
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for(u32 i = 0; i < g_serviceInfoCount; i++)
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{
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ServiceInfo *service_info = &(g_serviceInfo[i]);
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if (strlen(service_info->name) == name_len && !strcmp(service_info->name, name))
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{
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ret = service_info->initialized;
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break;
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}
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}
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end:
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mutexUnlock(&g_servicesMutex);
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return ret;
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}
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void servicesChangeHardwareClockRates(u32 cpu_rate, u32 mem_rate)
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{
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mutexLock(&g_servicesMutex);
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if (g_clkSvcUsePcv)
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{
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pcvSetClockRate(PcvModule_CpuBus, cpu_rate);
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pcvSetClockRate(PcvModule_EMC, mem_rate);
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} else {
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clkrstSetClockRate(&g_clkrstCpuSession, cpu_rate);
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clkrstSetClockRate(&g_clkrstMemSession, mem_rate);
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}
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mutexUnlock(&g_servicesMutex);
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}
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Result servicesAtmosphereHasService(bool *out_has_service, const char *name)
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{
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if (!out_has_service || !name || !*name)
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{
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LOGFILE("Invalid parameters!");
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return MAKERESULT(Module_Libnx, LibnxError_IoError);
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}
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SmServiceName service_name = smEncodeName(name);
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Result rc = smHasService(out_has_service, service_name);
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if (R_FAILED(rc)) LOGFILE("smHasService failed for \"%s\"! (0x%08X).", name, rc);
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return rc;
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}
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static Result smHasService(bool *out_has_service, SmServiceName name)
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{
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u8 tmp = 0;
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Result rc = serviceDispatchInOut(smGetServiceSession(), 65100, name, tmp);
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if (R_SUCCEEDED(rc) && out_has_service) *out_has_service = (tmp & 1);
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return rc;
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}
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static Result servicesNifmUserInitialize(void)
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{
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return nifmInitialize(NifmServiceType_User);
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}
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static Result servicesClkrstInitialize(void)
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{
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Result rc = 0;
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/* Open clkrst service handle. */
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rc = clkrstInitialize();
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if (R_FAILED(rc)) return rc;
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/* Initialize CPU and MEM clkrst sessions. */
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memset(&g_clkrstCpuSession, 0, sizeof(ClkrstSession));
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memset(&g_clkrstMemSession, 0, sizeof(ClkrstSession));
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rc = clkrstOpenSession(&g_clkrstCpuSession, PcvModuleId_CpuBus, 3);
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if (R_FAILED(rc))
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{
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clkrstExit();
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return rc;
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}
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rc = clkrstOpenSession(&g_clkrstMemSession, PcvModuleId_EMC, 3);
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if (R_FAILED(rc))
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{
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clkrstCloseSession(&g_clkrstCpuSession);
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clkrstExit();
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}
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return rc;
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}
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static void servicesClkrstExit(void)
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{
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/* Close CPU and MEM clkrst sessions. */
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clkrstCloseSession(&g_clkrstMemSession);
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clkrstCloseSession(&g_clkrstCpuSession);
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/* Close clkrst service handle. */
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clkrstExit();
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}
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static bool servicesClkGetServiceType(void *arg)
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{
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if (!arg) return false;
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ServiceInfo *info = (ServiceInfo*)arg;
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if (strlen(info->name) != 3 || strcmp(info->name, "clk") != 0 || info->init_func != NULL || info->close_func != NULL) return false;
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/* Determine which service needs to be used to control hardware clock rates, depending on the system version. */
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/* This may either be pcv (sysver lower than 8.0.0) or clkrst (sysver equal to or greater than 8.0.0). */
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g_clkSvcUsePcv = hosversionBefore(8, 0, 0);
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/* Fill service info. */
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sprintf(info->name, "%s", (g_clkSvcUsePcv ? "pcv" : "clkrst"));
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info->init_func = (g_clkSvcUsePcv ? &pcvInitialize : &servicesClkrstInitialize);
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info->close_func = (g_clkSvcUsePcv ? &pcvExit : &servicesClkrstExit);
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return true;
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}
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static bool servicesSplCryptoCheckAvailability(void *arg)
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{
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if (!arg) return false;
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ServiceInfo *info = (ServiceInfo*)arg;
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if (strlen(info->name) != 7 || strcmp(info->name, "spl:mig") != 0 || info->init_func == NULL || info->close_func == NULL) return false;
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/* Check if spl:mig is available (sysver equal to or greater than 4.0.0). */
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return !hosversionBefore(4, 0, 0);
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}
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static bool servicesFspUsbCheckAvailability(void *arg)
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{
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if (!arg) return false;
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ServiceInfo *info = (ServiceInfo*)arg;
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if (strlen(info->name) != 7 || strcmp(info->name, "fsp-usb") != 0 || info->init_func == NULL || info->close_func == NULL) return false;
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/* Check if fsp-usb is actually running in the background. */
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bool has_service = false;
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return (utilsGetCustomFirmwareType() == UtilsCustomFirmwareType_Atmosphere ? (R_SUCCEEDED(servicesAtmosphereHasService(&has_service, info->name)) && has_service) : \
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servicesCheckRunningServiceByName(info->name));
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}
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