libmocha/source/utils.cpp
2022-07-22 13:33:53 +02:00

250 lines
7.1 KiB
C++

#include "utils.h"
#include "mocha/commands.h"
#include "mocha/mocha.h"
#include <coreinit/ios.h>
#include <cstring>
#include <stdint.h>
int mochaInitDone = 0;
uint32_t mochaApiVersion = 0;
MochaUtilsStatus Mocha_InitLibrary() {
mochaInitDone = 1;
mochaApiVersion = 0;
uint32_t version = 0;
if (Mocha_CheckAPIVersion(&version) != MOCHA_RESULT_SUCCESS) {
return MOCHA_RESULT_SUCCESS;
}
mochaApiVersion = version;
return MOCHA_RESULT_SUCCESS;
}
MochaUtilsStatus Mocha_DeInitLibrary() {
mochaInitDone = 0;
mochaApiVersion = 0;
return MOCHA_RESULT_SUCCESS;
}
MochaUtilsStatus Mocha_CheckAPIVersion(uint32_t *version) {
if (!version) {
return MOCHA_RESULT_INVALID_ARGUMENT;
}
MochaUtilsStatus res = MOCHA_RESULT_UNKNOWN_ERROR;
int mcpFd = IOS_Open("/dev/mcp", IOS_OPEN_READ);
if (mcpFd >= 0) {
ALIGN_0x40 uint32_t io_buffer[0x100 / 4];
io_buffer[0] = IPC_CUSTOM_GET_MOCHA_API_VERSION;
if (IOS_Ioctl(mcpFd, 100, io_buffer, 4, io_buffer, 4) == IOS_ERROR_OK) {
*version = io_buffer[0];
res = MOCHA_RESULT_SUCCESS;
} else {
res = MOCHA_RESULT_UNSUPPORTED_API_VERSION;
}
IOS_Close(mcpFd);
} else {
return res;
}
return res;
}
MochaUtilsStatus Mocha_GetEnvironmentPath(char *environmentPathBuffer, uint32_t bufferLen) {
if (!mochaInitDone) {
return MOCHA_RESULT_LIB_UNINITIALIZED;
}
if (mochaApiVersion < 1) {
return MOCHA_RESULT_UNSUPPORTED_COMMAND;
}
if (!environmentPathBuffer || bufferLen < 0x100) {
return MOCHA_RESULT_INVALID_ARGUMENT;
}
MochaUtilsStatus res = MOCHA_RESULT_UNKNOWN_ERROR;
int mcpFd = IOS_Open("/dev/mcp", (IOSOpenMode) 0);
if (mcpFd >= 0) {
ALIGN_0x40 uint32_t io_buffer[0x100 / 4];
io_buffer[0] = IPC_CUSTOM_COPY_ENVIRONMENT_PATH;
if (IOS_Ioctl(mcpFd, 100, io_buffer, 4, io_buffer, 0x100) == IOS_ERROR_OK) {
memcpy(environmentPathBuffer, reinterpret_cast<const char *>(io_buffer), 0xFF);
res = MOCHA_RESULT_SUCCESS;
}
IOS_Close(mcpFd);
}
return res;
}
MochaUtilsStatus Mocha_SimpleCommand(uint32_t command, uint32_t apiVersion) {
if (!mochaInitDone) {
return MOCHA_RESULT_LIB_UNINITIALIZED;
}
if (mochaApiVersion < apiVersion) {
return MOCHA_RESULT_UNSUPPORTED_COMMAND;
}
MochaUtilsStatus res = MOCHA_RESULT_UNKNOWN_ERROR;
int mcpFd = IOS_Open("/dev/mcp", (IOSOpenMode) 0);
if (mcpFd >= 0) {
ALIGN_0x40 uint32_t io_buffer[0x40 / 4];
io_buffer[0] = command;
if (IOS_Ioctl(mcpFd, 100, io_buffer, 4, io_buffer, 0x4) == IOS_ERROR_OK) {
res = MOCHA_RESULT_SUCCESS;
}
IOS_Close(mcpFd);
}
return res;
}
MochaUtilsStatus Mocha_RPXHookCompleted() {
return Mocha_SimpleCommand(IPC_CUSTOM_MEN_RPX_HOOK_COMPLETED, 1);
}
MochaUtilsStatus Mocha_StartMCPThread() {
return Mocha_SimpleCommand(IPC_CUSTOM_START_MCP_THREAD, 1);
}
MochaUtilsStatus Mocha_StartUSBLogging(bool avoidLogCatchup) {
if (!mochaInitDone) {
return MOCHA_RESULT_LIB_UNINITIALIZED;
}
if (mochaApiVersion < 1) {
return MOCHA_RESULT_UNSUPPORTED_COMMAND;
}
MochaUtilsStatus res = MOCHA_RESULT_UNKNOWN_ERROR;
int mcpFd = IOS_Open("/dev/mcp", (IOSOpenMode) 0);
if (mcpFd >= 0) {
ALIGN_0x40 uint32_t io_buffer[0x40 / 4];
io_buffer[0] = IPC_CUSTOM_START_USB_LOGGING;
io_buffer[1] = avoidLogCatchup;
if (IOS_Ioctl(mcpFd, 100, io_buffer, 8, io_buffer, 0x4) == IOS_ERROR_OK) {
res = MOCHA_RESULT_SUCCESS;
}
IOS_Close(mcpFd);
}
return res;
}
MochaUtilsStatus Mocha_UnlockFSClient(FSClient *client) {
if (!client) {
return MOCHA_RESULT_INVALID_ARGUMENT;
}
return Mocha_UnlockFSClientEx(FSGetClientBody(client)->clientHandle);
}
MochaUtilsStatus Mocha_UnlockFSClientEx(int clientHandle) {
if (!mochaInitDone) {
return MOCHA_RESULT_LIB_UNINITIALIZED;
}
if (mochaApiVersion < 1) {
return MOCHA_RESULT_UNSUPPORTED_COMMAND;
}
ALIGN_0x40 int dummy[0x40 >> 2];
auto res = IOS_Ioctl(clientHandle, 0x28, dummy, sizeof(dummy), dummy, sizeof(dummy));
if (res == 0) {
return MOCHA_RESULT_SUCCESS;
}
if (res == -5) {
return MOCHA_RESULT_MAX_CLIENT;
}
return MOCHA_RESULT_UNKNOWN_ERROR;
}
MochaUtilsStatus Mocha_LoadRPXOnNextLaunch(MochaRPXLoadInfo *loadInfo) {
if (!mochaInitDone) {
return MOCHA_RESULT_LIB_UNINITIALIZED;
}
if (mochaApiVersion < 1) {
return MOCHA_RESULT_UNSUPPORTED_COMMAND;
}
MochaUtilsStatus res = MOCHA_RESULT_UNKNOWN_ERROR;
int mcpFd = IOS_Open("/dev/mcp", (IOSOpenMode) 0);
if (mcpFd >= 0) {
ALIGN_0x40 uint32_t io_buffer[ROUNDUP(sizeof(MochaRPXLoadInfo) + 4, 0x40)];
io_buffer[0] = IPC_CUSTOM_LOAD_CUSTOM_RPX;
memcpy(&io_buffer[1], loadInfo, sizeof(MochaRPXLoadInfo));
if (IOS_Ioctl(mcpFd, 100, io_buffer, sizeof(MochaRPXLoadInfo) + 4, io_buffer, 0x4) == IOS_ERROR_OK) {
res = MOCHA_RESULT_SUCCESS;
}
IOS_Close(mcpFd);
}
return res;
}
MochaUtilsStatus Mocha_ODMGetDiscKey(WUDDiscKey *discKey) {
if (!mochaInitDone) {
return MOCHA_RESULT_LIB_UNINITIALIZED;
}
if (mochaApiVersion < 1) {
return MOCHA_RESULT_UNSUPPORTED_COMMAND;
}
if (!discKey) {
return MOCHA_RESULT_INVALID_ARGUMENT;
}
int odm_handle = IOS_Open("/dev/odm", IOS_OPEN_READ);
MochaUtilsStatus res = MOCHA_RESULT_UNKNOWN_ERROR;
if (odm_handle >= 0) {
ALIGN_0x40 uint32_t io_buffer[0x40 / 4];
// disc encryption key, only works with patched IOSU
io_buffer[0] = 3;
if (IOS_Ioctl(odm_handle, 0x06, io_buffer, 0x14, io_buffer, 0x20) == IOS_ERROR_OK) {
memcpy(discKey, io_buffer, 16);
res = MOCHA_RESULT_SUCCESS;
}
IOS_Close(odm_handle);
}
return res;
}
extern "C" int bspRead(const char *, uint32_t, const char *, uint32_t, uint16_t *);
MochaUtilsStatus Mocha_SEEPROMRead(uint8_t *out_buffer, uint32_t offset, uint32_t size) {
if (!mochaInitDone) {
return MOCHA_RESULT_LIB_UNINITIALIZED;
}
if (mochaApiVersion < 1) {
return MOCHA_RESULT_UNSUPPORTED_COMMAND;
}
if (out_buffer == nullptr || offset > 0x200 || offset & 0x01) {
return MOCHA_RESULT_INVALID_ARGUMENT;
}
uint32_t sizeInShorts = size >> 1;
uint32_t offsetInShorts = offset >> 1;
int32_t maxReadCount = 0x100 - offsetInShorts;
if (maxReadCount <= 0) {
return MOCHA_RESULT_SUCCESS;
}
uint32_t count = sizeInShorts > (uint32_t) maxReadCount ? (uint32_t) maxReadCount : sizeInShorts;
auto *ptr = (uint16_t *) out_buffer;
int res = 0;
for (uint32_t i = 0; i < count; i++) {
if (bspRead("EE", offsetInShorts + i, "access", 2, ptr) != 0) {
return MOCHA_RESULT_UNKNOWN_ERROR;
}
res += 2;
ptr++;
}
return static_cast<MochaUtilsStatus>(res);
}