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ios_mcp: Rewrite rpx loading to make it more robust

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This commit is contained in:
Maschell 2023-11-27 12:17:26 +01:00
parent fe488db5f5
commit ff7a2c5bbf
9 changed files with 426 additions and 160 deletions
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2
source/ios_mcp/Makefile
View File

@ -94,7 +94,7 @@ export LIBPATHS := $(foreach dir,$(LIBDIRS),-L$(dir)/lib)
all: $(BUILD)
$(BUILD):
@[ -d $@ ] || mkdir -p $@
@$(shell [ ! -d $(BUILD) ] && mkdir -p $(BUILD))
@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
#---------------------------------------------------------------------------------

2
source/ios_mcp/source/dk.c
View File

@ -255,7 +255,7 @@ static int handleServer(int connfd) {
return -1;
}
static int dkThread(void *arg) {
static int dkThread(void *) {
printf("DK: thread started\n");
threadRunning = 1;

27
source/ios_mcp/source/imports.c
View File

@ -23,3 +23,30 @@ char *strncat(char *destination, const char *source, size_t num) {
// destination string is returned by standard strncat()
return destination;
}
char *strchr(const char *p, int ch) {
char c;
c = ch;
for (;; ++p) {
if (*p == c)
return ((char *) p);
if (*p == '\0')
return (NULL);
}
/* NOTREACHED */
}
char *
strrchr(s, c)
register const char *s;
int c;
{
char *rtnval = 0;
do {
if (*s == c)
rtnval = (char *) s;
} while (*s++);
return (rtnval);
}

10
source/ios_mcp/source/ipc.c
View File

@ -31,6 +31,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#define IOS_ERROR_UNKNOWN_VALUE 0xFFFFFFD6
#define IOS_ERROR_INVALID_ARG 0xFFFFFFE3
@ -140,7 +141,7 @@ static int ipc_ioctl(ipcmessage *message) {
u32 n = message->ioctl.buffer_in[2];
u32 old = *dst;
int i;
u32 i;
for (i = 0; i < n; i++) {
if (*dst != old) {
if (*dst == 0x0) old = *dst;
@ -402,7 +403,7 @@ static int ipc_ioctlv(ipcmessage *message) {
return res;
}
static int ipc_thread(void *arg) {
static int ipc_thread(void *) {
int res;
ipcmessage *message;
u32 messageQueue[0x10];
@ -419,27 +420,22 @@ static int ipc_thread(void *arg) {
switch (message->command) {
case IOS_OPEN: {
log_printf("IOS_OPEN\n");
res = 0;
break;
}
case IOS_CLOSE: {
log_printf("IOS_CLOSE\n");
res = 0;
break;
}
case IOS_IOCTL: {
log_printf("IOS_IOCTL\n");
res = ipc_ioctl(message);
break;
}
case IOS_IOCTLV: {
log_printf("IOS_IOCTLV\n");
res = ipc_ioctlv(message);
break;
}
default: {
log_printf("unexpected command 0x%X\n", message->command);
res = IOS_ERROR_UNKNOWN_VALUE;
break;
}

2
source/ios_mcp/source/ipc_types.h
View File

@ -63,7 +63,7 @@ typedef struct ipcmessage {
u32 *buffer_io;
u32 length_io;
} ioctl;
struct _ioctlv {
struct {
u32 command;
uint32_t num_in;

22
source/ios_mcp/source/logger.h
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@ -1,28 +1,14 @@
#ifndef __LOGGER_H_
#define __LOGGER_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <stdio.h>
#ifdef LOG_IP
int log_init(unsigned int ip);
void log_deinit();
void log_printf(const char *format, ...);
#else
#define log_init(x)
#define log_deinit()
#define log_printf(x, ...)
#endif
#define __FILENAME_X__ (strrchr(__FILE__, '\\') ? strrchr(__FILE__, '\\') + 1 : __FILE__)
#define __FILENAME__ (strrchr(__FILE__, '/') ? strrchr(__FILE__, '/') + 1 : __FILENAME_X__)
#define DEBUG_FUNCTION_LINE(FMT, ARGS...) \
do { \
log_printf("[%23s]%30s@L%04d: " FMT "", __FILE__, __FUNCTION__, __LINE__, ##ARGS); \
printf("[%23s]%30s@L%04d: " FMT "", __FILENAME__, __FUNCTION__, __LINE__, ##ARGS); \
} while (0)
#ifdef __cplusplus
}
#endif
#endif

1
source/ios_mcp/source/main.c
View File

@ -1,6 +1,7 @@
#include "ipc.h"
static int threadsStarted = 0;
extern void wupserver_init();
int _startMainThread(void) {
if (threadsStarted == 0) {

507
source/ios_mcp/source/mcp_loadfile.c
View File

@ -26,116 +26,121 @@
#include <mocha/commands.h>
#include <stdio.h>
#include <string.h>
#include <sys/unistd.h>
#include <unistd.h>
int (*const real_MCP_LoadFile)(ipcmessage *msg) = (void *) 0x0501CAA8 + 1; //+1 for thumb
int (*const MCP_DoLoadFile)(const char *path, const char *path2, void *outputBuffer, uint32_t outLength, uint32_t pos, int *bytesRead, uint32_t unk) = (void *) 0x05017248 + 1;
static int
MCP_LoadCustomFile(int target, char *path, uint32_t filesize, uint32_t fileoffset, void *buffer_out,
uint32_t buffer_len,
uint32_t pos, bool isRPX);
static int MCP_LoadCustomFile(int target, char *path, int filesize, int fileoffset, void *out_buffer, int buffer_len, int pos);
int (*const real_MCP_LoadFile)(ipcmessage *msg) = (int (*)(ipcmessage *))(0x0501CAA8 + 1); //+1 for thumb
int (*const MCP_DoLoadFile)(const char *path,
const char *path2,
void *outputBuffer,
uint32_t outLength,
uint32_t pos,
int *bytesRead,
uint32_t unk) = (int (*)(const char *,
const char *,
void *,
uint32_t,
uint32_t,
int *,
uint32_t))(0x05017248 + 1);
static bool replace_valid = false;
static bool skipPPCSetup = false;
static bool doWantReplaceRPX = false;
static bool replace_target_device = 0;
static uint32_t rep_filesize = 0;
static uint32_t rep_fileoffset = 0;
static char rpxpath[256];
typedef enum {
REPLACEMENT_TYPE_INVALID = 0,
REPLACEMENT_TYPE_HOMEBREW_RPX = 1,
REPLACEMENT_TYPE_HOMEBREW_RPL = 2,
REPLACEMENT_TYPE_BY_PATH = 3,
REPLACEMENT_TYPE_UNTIL_MEM_HOOK_COMPLETED_BUT_BY_PATH = 4,
} ReplacementType;
#define log(fmt, ...) log_printf("%s: " fmt, __FUNCTION__, __VA_ARGS__)
#define FAIL_ON(cond, val) \
if (cond) { \
log(#cond " (%08X)", val); \
return 29; \
}
typedef enum {
REPLACEMENT_LIFETIME_INVALID = 0,
REPLACEMENT_LIFETIME_UNLIMITED = 1,
REPLACEMENT_LIFETIME_ONE_RPX_LAUNCH = 2,
REPLACEMENT_LIFETIME_DURING_RPX_REPLACEMENT = 3,
} ReplacementLifetime;
int _MCP_LoadFile_patch(ipcmessage *msg) {
typedef enum {
PATH_RELATIVE_INVALID = 0,
PATH_RELATIVE_TO_ENVIRONMENT = 1,
PATH_RELATIVE_TO_SD_ROOT = 2,
} PathRelativeTo;
FAIL_ON(!msg->ioctl.buffer_in, 0);
FAIL_ON(msg->ioctl.length_in != 0x12D8, msg->ioctl.length_in);
FAIL_ON(!msg->ioctl.buffer_io, 0);
FAIL_ON(!msg->ioctl.length_io, 0);
typedef struct RPXFileReplacements {
ReplacementType type;
ReplacementLifetime lifetime;
char replaceName[0x40];
char replacementPath[256];
PathRelativeTo relativeTo;
uint32_t fileSize;
uint32_t fileOffset;
uint32_t ageInApplicationStarts;
} RPXFileReplacements;
MCPLoadFileRequest *request = (MCPLoadFileRequest *) msg->ioctl.buffer_in;
static bool gMemHookCompleted = false;
static bool sReplacedLastRPX = false;
//dumpHex(request, sizeof(MCPLoadFileRequest));
//DEBUG_FUNCTION_LINE("msg->ioctl.buffer_io = %p, msg->ioctl.length_io = 0x%X\n", msg->ioctl.buffer_io, msg->ioctl.length_io);
//DEBUG_FUNCTION_LINE("request->type = %d, request->pos = %d, request->name = \"%s\"\n", request->type, request->pos, request->name);
static const RPXFileReplacements gDefaultReplacements[] = {
// Redirect men.rpx [ENVIRONMENT]/root.rpx until IPC_CUSTOM_MEN_RPX_HOOK_COMPLETED has been called. (e.g. to init PPC homebrew after iosu-reload)
{REPLACEMENT_TYPE_UNTIL_MEM_HOOK_COMPLETED_BUT_BY_PATH, REPLACEMENT_LIFETIME_UNLIMITED, "men.rpx", "root.rpx", PATH_RELATIVE_TO_ENVIRONMENT, 0, 0, 0},
// Redirect men.rpx to [ENVIRONMENT]/men.rpx
{REPLACEMENT_TYPE_BY_PATH, REPLACEMENT_LIFETIME_UNLIMITED, "men.rpx", "men.rpx", PATH_RELATIVE_TO_ENVIRONMENT, 0, 0, 0},
};
LoadRPXTargetEnum replace_target = replace_target_device;
int replace_filesize = rep_filesize;
int replace_fileoffset = rep_fileoffset;
char *replace_path = rpxpath;
static RPXFileReplacements *gDynamicReplacements[5] = {};
if (strlen(request->name) > 1 && request->name[0] == '~' && request->name[1] == '|') {
// OSDynload_Acquire is cutting of the name right after the last '/'. This means "~/wiiu/libs/test.rpl" would simply become "test.rpl".
// To still have directories, Mocha expects '|' instead of '/'. (Modules like the AromaBaseModule might handle this transparent for the user.)
// Example: "~|wiiu|libs|test.rpl" would load "sd://wiiu/libs/test.rpl".
char *curPtr = &request->name[1];
while (*curPtr != '\0') {
if (*curPtr == '|') {
*curPtr = '/';
}
curPtr++;
}
printf("Trying to load %s from sd\n", &request->name[2]);
int result = MCP_LoadCustomFile(LOAD_RPX_TARGET_SD_CARD, &request->name[2], 0, 0, msg->ioctl.buffer_io, msg->ioctl.length_io, request->pos);
// should be at least the size of gDefaultReplacements and gDynamicReplacements
#define TEMP_ARRAY_SIZE 7
if (result >= 0) {
return result;
}
return real_MCP_LoadFile(msg);
}
if (strlen(request->name) > 1 && request->name[strlen(request->name) - 1] == 'x') {
if (strncmp(request->name, "safe.rpx", strlen("safe.rpx")) == 0 || strncmp(request->name, "ply.rpx", strlen("ply.rpx")) == 0) {
if (request->pos == 0 && replace_valid) {
//DEBUG_FUNCTION_LINE("set doWantReplaceRPX to true\n");
doWantReplaceRPX = true;
}
} else {
//DEBUG_FUNCTION_LINE("set replace_valid to false\n");
replace_valid = false;
bool addDynamicReplacement(RPXFileReplacements *pReplacements) {
for (uint32_t i = 0; i < sizeof(gDynamicReplacements) / sizeof(gDynamicReplacements[0]); i++) {
if (gDynamicReplacements[i] == NULL) {
gDynamicReplacements[i] = pReplacements;
return true;
}
}
if (strncmp(request->name, "men.rpx", strlen("men.rpx")) == 0) {
rpxpath[0] = '\0';
if (skipPPCSetup) {
snprintf(rpxpath, sizeof(rpxpath) - 1, "%s/men.rpx", &((char *) 0x0511FF00)[19]); // Copy in environment path
} else {
snprintf(rpxpath, sizeof(rpxpath) - 1, "%s/root.rpx", &((char *) 0x0511FF00)[19]); // Copy in environment path
}
// At startup we want to hook into the Wii U Menu by replacing the men.rpx with a file from the SD Card
// The replacement may restart the application to execute a kernel exploit.
// The men.rpx is hooked until the "IPC_CUSTOM_MEN_RPX_HOOK_COMPLETED" command is passed to IOCTL 0x100.
// If the loading of the replacement file fails, the Wii U Menu is loaded normally.
replace_target = LOAD_RPX_TARGET_SD_CARD;
replace_filesize = 0; // unknown
replace_fileoffset = 0;
} else if (strncmp(request->name, "safe.rpx", strlen("safe.rpx")) == 0 || strncmp(request->name, "ply.rpx", strlen("ply.rpx")) == 0) {
// Needed to support loading files > 4MiB
} else if (!doWantReplaceRPX) {
doWantReplaceRPX = false; // Only replace it once.
replace_path = NULL;
return real_MCP_LoadFile(msg);
}
if (replace_path != NULL && strlen(replace_path) > 0) {
doWantReplaceRPX = false; // Only replace it once.
int result = MCP_LoadCustomFile(replace_target, replace_path, replace_filesize, replace_fileoffset, msg->ioctl.buffer_io, msg->ioctl.length_io, request->pos);
if (result >= 0) {
return result;
}
} else {
DEBUG_FUNCTION_LINE("replace_path was NULL\n");
}
return real_MCP_LoadFile(msg);
DEBUG_FUNCTION_LINE("Failed to find empty slot!\n");
return false;
}
void RemoveByLifetime(ReplacementLifetime lifetime) {
for (uint32_t i = 0; i < sizeof(gDynamicReplacements) / sizeof(gDynamicReplacements[0]); i++) {
if (gDynamicReplacements[i] != NULL && gDynamicReplacements[i]->lifetime == lifetime) {
// We DON'T want to remove new entries which had the chance to be used
// There are intended to be used for the NEXT application start.
if (lifetime == REPLACEMENT_LIFETIME_DURING_RPX_REPLACEMENT &&
gDynamicReplacements[i]->ageInApplicationStarts == 0) {
continue;
}
/*DEBUG_FUNCTION_LINE("Remove item %p: lifetime: %d type: %d replace: %s replaceWith: %s\n",
gDynamicReplacements[i], gDynamicReplacements[i]->lifetime,
gDynamicReplacements[i]->type, gDynamicReplacements[i]->replaceName,
gDynamicReplacements[i]->replacementPath);*/
svcFree(0xCAFF, gDynamicReplacements[i]);
gDynamicReplacements[i] = NULL;
}
}
}
static inline int EndsWith(const char *str, const char *suffix) {
if (!str || !suffix)
return 0;
size_t lenstr = strlen(str);
size_t lensuffix = strlen(suffix);
if (lensuffix > lenstr)
return 0;
return strncmp(str + lenstr - lensuffix, suffix, lensuffix) == 0;
}
// Set filesize to 0 if unknown.
static int MCP_LoadCustomFile(int target, char *path, int filesize, int fileoffset, void *buffer_out, int buffer_len, int pos) {
static int
MCP_LoadCustomFile(int target, char *path, uint32_t filesize, uint32_t fileoffset, void *buffer_out,
uint32_t buffer_len,
uint32_t pos, bool isRPX) {
if (path == NULL || (filesize > 0 && (pos > filesize))) {
return 0;
}
@ -147,8 +152,8 @@ static int MCP_LoadCustomFile(int target, char *path, int filesize, int fileoffs
char mountpath[] = "/vol/storage_iosu_homebrew";
if (target == LOAD_RPX_TARGET_SD_CARD) {
int fsa_h = svcOpen("/dev/fsa", 0);
int mount_res = FSA_Mount(fsa_h, "/dev/sdcard01", mountpath, 2, NULL, 0);
int fsa_h = svcOpen("/dev/fsa", 0);
FSA_Mount(fsa_h, "/dev/sdcard01", mountpath, 2, NULL, 0);
svcClose(fsa_h);
strncpy(filepath, mountpath, sizeof(filepath) - 1);
@ -160,7 +165,7 @@ static int MCP_LoadCustomFile(int target, char *path, int filesize, int fileoffs
int bytesRead = 0;
int result = MCP_DoLoadFile(filepath, NULL, buffer_out, buffer_len, pos + fileoffset, &bytesRead, 0);
//log("MCP_DoLoadFile returned %d, bytesRead = %d pos %d \n", result, bytesRead, pos + fileoffset);
// DEBUG_FUNCTION_LINE("MCP_DoLoadFile returned %d, bytesRead = %d pos %u\n", result, bytesRead, pos + fileoffset);
if (result >= 0) {
if (bytesRead <= 0) {
@ -174,15 +179,266 @@ static int MCP_LoadCustomFile(int target, char *path, int filesize, int fileoffs
}
}
if (result < 0x400000 && target == LOAD_RPX_TARGET_SD_CARD) {
int fsa_h = svcOpen("/dev/fsa", 0);
int unmount_res = FSA_Unmount(fsa_h, mountpath, 0x80000002);
svcClose(fsa_h);
// Unmount the sd card once the whole file has been read.
if (result >= 0 && result < 0x400000) {
if (target == LOAD_RPX_TARGET_SD_CARD) {
int fsa_h = svcOpen("/dev/fsa", 0);
FSA_Unmount(fsa_h, mountpath, 0x80000002);
svcClose(fsa_h);
}
if (isRPX) {
// if we have read less than 0x400000 bytes we have read the whole file.
// We can now remove the replacements with "one launch" lifetime
RemoveByLifetime(REPLACEMENT_LIFETIME_ONE_RPX_LAUNCH);
}
}
return result;
}
int DoSDRedirectionByPath(ipcmessage *msg, MCPLoadFileRequest *request) {
if (strlen(request->name) > 1 && request->name[0] == '~' && request->name[1] == '|') {
// OSDynload_Acquire is cutting of the name right after the last '/'. This means "~/wiiu/libs/test.rpl" would simply become "test.rpl".
// To still have directories, Mocha expects '|' instead of '/'. (Modules like the AromaBaseModule might handle this transparent for the user.)
// Example: "~|wiiu|libs|test.rpl" would load "sd://wiiu/libs/test.rpl".
char *curPtr = &request->name[1];
while (*curPtr != '\0') {
if (*curPtr == '|') {
*curPtr = '/';
}
curPtr++;
}
// DEBUG_FUNCTION_LINE("Trying to load %s from sd\n", &request->name[2]);
int result = MCP_LoadCustomFile(LOAD_RPX_TARGET_SD_CARD, &request->name[2], 0, 0, msg->ioctl.buffer_io,
msg->ioctl.length_io, request->pos, EndsWith(request->name, ".rpx"));
if (result >= 0) {
return result;
} else {
DEBUG_FUNCTION_LINE("Failed: result was %d\n", result);
}
return real_MCP_LoadFile(msg);
}
return -1;
}
bool isCurrentHomebrewWrapperReplacement(MCPLoadFileRequest *request) {
if ((strncmp("ply.rpx", request->name, strlen("ply.rpx")) == 0) ||
(strncmp("safe.rpx", request->name, strlen("safe.rpx")) == 0)) {
return true;
}
return false;
}
const RPXFileReplacements *GetCurrentRPXReplacementEx(MCPLoadFileRequest *request, const RPXFileReplacements **list, uint32_t list_size) {
for (uint32_t i = 0; i < list_size; i++) {
const RPXFileReplacements *cur = list[i];
if (cur == NULL || cur->lifetime == REPLACEMENT_LIFETIME_INVALID) {
continue;
}
bool valid = false;
switch (cur->type) {
case REPLACEMENT_TYPE_HOMEBREW_RPX: {
// DEBUG_FUNCTION_LINE("Check REPLACEMENT_TYPE_HOMEBREW_RPX for %s... ", cur->replacementPath);
if (isCurrentHomebrewWrapperReplacement(request)) {
// printf("Yay!\n");
valid = true;
} else {
// printf("No :(!\n");
}
break;
}
case REPLACEMENT_TYPE_HOMEBREW_RPL:
// DEBUG_FUNCTION_LINE("Check REPLACEMENT_TYPE_HOMEBREW_RPL for %s (%s) == %s (sReplacedLastRPX %d)... ", cur->replaceName,
// cur->replacementPath, request->name, sReplacedLastRPX);
if (sReplacedLastRPX && strncmp(cur->replaceName, request->name, sizeof(request->name) - 1) == 0) {
// printf("Yay!\n");
valid = true;
} else {
// printf("No :(!\n");
}
break;
case REPLACEMENT_TYPE_BY_PATH:
// DEBUG_FUNCTION_LINE("Check REPLACEMENT_TYPE_BY_PATH for %s (%s) == %s... ", cur->replaceName,
// cur->replacementPath, request->name);
if (strncmp(cur->replaceName, request->name, sizeof(request->name) - 1) == 0) {
// printf("Yay!\n");
valid = true;
} else {
// printf("No :(!\n");
}
break;
case REPLACEMENT_TYPE_UNTIL_MEM_HOOK_COMPLETED_BUT_BY_PATH:
// DEBUG_FUNCTION_LINE("Check REPLACEMENT_TYPE_UNTIL_MEM_HOOK_COMPLETED_BUT_BY_PATH for %s (%s) == %s... ", cur->replaceName,
// cur->replacementPath, request->name);
if (strncmp(cur->replaceName, request->name, sizeof(request->name) - 1) == 0 && !gMemHookCompleted) {
// printf("Yay!\n");
valid = true;
} else {
// printf("No :(!\n");
}
break;
case REPLACEMENT_TYPE_INVALID:
DEBUG_FUNCTION_LINE("REPLACEMENT_TYPE_INVALID\n");
break;
}
if (valid) {
return cur;
}
}
return NULL;
}
static uint32_t getReplacementDataInSingleArray(const RPXFileReplacements **tmpArray, uint32_t tmpArraySize) {
uint32_t offsetInResult = 0;
for (uint32_t i = 0; i < sizeof(gDefaultReplacements) / sizeof(gDefaultReplacements[0]); i++) {
if (offsetInResult >= tmpArraySize) {
DEBUG_FUNCTION_LINE("ELEMENTS DO NOT FIT INTO ARRAY");
return offsetInResult;
}
if (gDefaultReplacements[i].lifetime != REPLACEMENT_LIFETIME_INVALID) {
tmpArray[offsetInResult] = &gDefaultReplacements[i];
offsetInResult++;
}
}
for (uint32_t i = 0; i < sizeof(gDynamicReplacements) / sizeof(gDynamicReplacements[0]); i++) {
if (offsetInResult >= tmpArraySize) {
DEBUG_FUNCTION_LINE("ELEMENTS DO NOT FIT INTO ARRAY");
return offsetInResult;
}
if (gDynamicReplacements[i] != NULL) {
tmpArray[offsetInResult] = gDynamicReplacements[i];
offsetInResult++;
}
}
return offsetInResult;
}
const RPXFileReplacements *GetCurrentRPXReplacement(MCPLoadFileRequest *request) {
const RPXFileReplacements *tmpArray[TEMP_ARRAY_SIZE] = {};
uint32_t elementsInArray = getReplacementDataInSingleArray(tmpArray, TEMP_ARRAY_SIZE);
if (elementsInArray == 0) {
return NULL;
}
return GetCurrentRPXReplacementEx(request, tmpArray, elementsInArray);
}
int DoReplacementByStruct(ipcmessage *msg, MCPLoadFileRequest *request, const RPXFileReplacements *curReplacement) {
char _rpxpath[256] = {};
int target = -1;
if (curReplacement->relativeTo == PATH_RELATIVE_TO_ENVIRONMENT) {
char *environmentPath = &((char *) 0x0511FF00)[19];
snprintf(_rpxpath, sizeof(_rpxpath) - 1, "%s/%s", environmentPath, curReplacement->replacementPath); // Copy in environment path
target = LOAD_RPX_TARGET_SD_CARD;
} else if (curReplacement->relativeTo == PATH_RELATIVE_TO_SD_ROOT) {
strncpy(_rpxpath, curReplacement->replacementPath, sizeof(_rpxpath) - 1);
target = LOAD_RPX_TARGET_SD_CARD;
} else {
DEBUG_FUNCTION_LINE("Unknown relativeTo: %d\n", curReplacement->relativeTo);
return -1;
}
DEBUG_FUNCTION_LINE("Load custom file %s\n", _rpxpath);
return MCP_LoadCustomFile(target,
_rpxpath,
curReplacement->fileSize,
curReplacement->fileOffset,
msg->ioctl.buffer_io,
msg->ioctl.length_io,
request->pos, EndsWith(request->name, ".rpx"));
}
int MCPLoadFileReplacement(ipcmessage *msg, MCPLoadFileRequest *request) {
int res;
if ((res = DoSDRedirectionByPath(msg, request)) >= 0) {
// DEBUG_FUNCTION_LINE("We replaced by path!\n");
return res;
}
const RPXFileReplacements *curReplacement = GetCurrentRPXReplacement(request);
if (curReplacement == NULL) {
// DEBUG_FUNCTION_LINE("Couldn't find replacement for %s!\n", request->name);
return -1;
}
if ((res = DoReplacementByStruct(msg, request, curReplacement)) >= 0) {
return res;
}
return res;
}
void IncreaseApplicationStartCounter() {
for (uint32_t i = 0; i < sizeof(gDynamicReplacements) / sizeof(gDynamicReplacements[0]); i++) {
if (gDynamicReplacements[i] != NULL) {
gDynamicReplacements[i]->ageInApplicationStarts++;
}
}
}
bool hasHomebrewReplacementsEx(const RPXFileReplacements **list, uint32_t list_size) {
for (uint32_t i = 0; i < list_size; i++) {
const RPXFileReplacements *cur = list[i];
if (cur != NULL && cur->type != REPLACEMENT_TYPE_INVALID) {
if (cur->type == REPLACEMENT_TYPE_HOMEBREW_RPX) {
return true;
}
}
}
return false;
}
bool hasHomebrewReplacements() {
const RPXFileReplacements *tmpArray[TEMP_ARRAY_SIZE] = {};
uint32_t elementsInArray = getReplacementDataInSingleArray(tmpArray, TEMP_ARRAY_SIZE);
if (elementsInArray == 0) {
return false;
}
if (!hasHomebrewReplacementsEx(tmpArray, elementsInArray)) {
// DEBUG_FUNCTION_LINE("Has no homebrew replacements\n");
return false;
}
return true;
}
int _MCP_LoadFile_patch(ipcmessage *msg) {
MCPLoadFileRequest *request = (MCPLoadFileRequest *) msg->ioctl.buffer_in;
// we only care about Foreground app/COS-MASTER for now.
if (request->cafe_pid != 7) {
// DEBUG_FUNCTION_LINE("Not for pid 7, lets ignore\n");
return real_MCP_LoadFile(msg);
}
bool requestIsRPX = EndsWith(request->name, ".rpx");
// Check if a fresh RPX is loaded
if (request->pos == 0 && requestIsRPX) {
// DEBUG_FUNCTION_LINE("fresh RPX load\n");
// Remove any old replacements that should only survive one RPX replacement
RemoveByLifetime(REPLACEMENT_LIFETIME_DURING_RPX_REPLACEMENT);
// Increase of the all replacements when we load a new RPX!
IncreaseApplicationStartCounter();
sReplacedLastRPX = false;
}
int res;
if ((res = MCPLoadFileReplacement(msg, request)) >= 0) {
if (requestIsRPX) {
sReplacedLastRPX = true;
}
return res;
}
res = real_MCP_LoadFile(msg);
return res;
}
int _MCP_ReadCOSXml_patch(uint32_t u1, uint32_t u2, MCPPPrepareTitleInfo *xmlData) {
int (*const real_MCP_ReadCOSXml_patch)(uint32_t u1, uint32_t u2, MCPPPrepareTitleInfo * xmlData) = (void *) 0x050024ec + 1; //+1 for thumb
@ -210,7 +466,7 @@ int _MCP_ReadCOSXml_patch(uint32_t u1, uint32_t u2, MCPPPrepareTitleInfo *xmlDat
}
// if we replace the RPX we want to increase the max_codesize and give us full permission!
if (replace_valid) {
if (hasHomebrewReplacements()) {
if (xmlData->titleId == 0x000500101004E000 || // H&S
xmlData->titleId == 0x000500101004E100 ||
xmlData->titleId == 0x000500101004E200 ||
@ -245,7 +501,7 @@ int _MCP_ReadCOSXml_patch(uint32_t u1, uint32_t u2, MCPPPrepareTitleInfo *xmlDat
// When the PPC Kernel reboots we replace the men.rpx to set up our PPC side again
// for this the Wii U Menu temporarily gets replaced by our root.rpx and needs code gen access
if (!skipPPCSetup) {
if (!gMemHookCompleted) {
if (xmlData->titleId == 0x0005001010040000 ||
xmlData->titleId == 0x0005001010040100 ||
xmlData->titleId == 0x0005001010040200) {
@ -264,45 +520,50 @@ extern int _startMainThread(void);
/* RPX replacement! Call this ioctl to replace the next loaded RPX with an arbitrary path.
DO NOT RETURN 0, this affects the codepaths back in the IOSU code */
int _MCP_ioctl100_patch(ipcmessage *msg) {
FAIL_ON(!msg->ioctl.buffer_in, 0);
FAIL_ON(!msg->ioctl.length_in, 0);
if (msg->ioctl.buffer_in && msg->ioctl.length_in >= 4) {
int command = msg->ioctl.buffer_in[0];
switch (command) {
case IPC_CUSTOM_MEN_RPX_HOOK_COMPLETED: {
DEBUG_FUNCTION_LINE("IPC_CUSTOM_MEN_RPX_HOOK_COMPLETED\n");
skipPPCSetup = true;
gMemHookCompleted = true;
break;
}
case IPC_CUSTOM_LOAD_CUSTOM_RPX: {
DEBUG_FUNCTION_LINE("IPC_CUSTOM_LOAD_CUSTOM_RPX\n");
if (msg->ioctl.length_in >= 0x110) {
if (msg->ioctl.length_in >= sizeof(MochaRPXLoadInfo) + 4) {
int target = msg->ioctl.buffer_in[0x04 / 0x04];
if (target == LOAD_RPX_TARGET_EXTRA_REVERT_PREPARE) {
doWantReplaceRPX = false;
replace_valid = false;
return 0;
}
if (target != LOAD_RPX_TARGET_SD_CARD) {
return 29;
}
int filesize = msg->ioctl.buffer_in[0x08 / 0x04];
int fileoffset = msg->ioctl.buffer_in[0x0C / 0x04];
char *str_ptr = (char *) &msg->ioctl.buffer_in[0x10 / 0x04];
memset(rpxpath, 0, sizeof(rpxpath));
uint32_t filesize = msg->ioctl.buffer_in[0x08 / 0x04];
uint32_t fileoffset = msg->ioctl.buffer_in[0x0C / 0x04];
char *str_ptr = (char *) &msg->ioctl.buffer_in[0x10 / 0x04];
strncpy(rpxpath, str_ptr, 256 - 1);
RPXFileReplacements *newReplacement = svcAlloc(0xCAFF, sizeof(RPXFileReplacements));
if (newReplacement == NULL) {
DEBUG_FUNCTION_LINE("Failed to allocate memory on heap\n");
return 22;
}
rep_filesize = filesize;
rep_fileoffset = fileoffset;
doWantReplaceRPX = true;
//doWantReplaceXML = true;
replace_valid = true;
memset(newReplacement, 0, sizeof(*newReplacement));
DEBUG_FUNCTION_LINE("Will load %s for next title from target: %d (offset %d, filesize %d)\n", rpxpath, target, rep_fileoffset, rep_filesize);
strncpy(newReplacement->replacementPath, str_ptr, sizeof(newReplacement->replacementPath) - 1);
newReplacement->fileOffset = fileoffset;
newReplacement->fileSize = filesize;
newReplacement->lifetime = REPLACEMENT_LIFETIME_ONE_RPX_LAUNCH;
newReplacement->relativeTo = PATH_RELATIVE_TO_SD_ROOT;
newReplacement->type = REPLACEMENT_TYPE_HOMEBREW_RPX;
if (!addDynamicReplacement(newReplacement)) {
DEBUG_FUNCTION_LINE("addDynamicReplacement failed, abort redirecting %s\n", newReplacement->replacementPath);
svcFree(0xCAFF, newReplacement);
return 22;
}
DEBUG_FUNCTION_LINE("Will load %s for next title from target: %d (offset %u, filesize %u)\n",
newReplacement->replacementPath, target, fileoffset, filesize);
return 0;
} else {
return 29;

13
source/ios_mcp/source/wupserver.c
View File

@ -8,6 +8,8 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/unistd.h>
#include <unistd.h>
static int serverKilled;
static int serverSocket;
@ -87,7 +89,7 @@ static int serverCommandHandler(u32 *command_buffer, u32 length) {
u32 n = command_buffer[3];
u32 old = *dst;
int i;
u32 i;
for (i = 0; i < n; i++) {
if (*dst != old) {
if (*dst == 0x0) old = *dst;
@ -167,7 +169,7 @@ static void serverListenClients() {
serverSocket = -1;
}
static int wupserver_thread(void *arg) {
static int wupserver_thread() {
while (ifmgrnclInit() <= 0) {
//print(0, 0, "opening /dev/net/ifmgr/ncl...");
usleep(1000);
@ -192,12 +194,6 @@ static int wupserver_thread(void *arg) {
usleep(1000);
}
#ifdef LOG_IP
log_init(0xc0a8b2a1);
#else
log_init(0xc0a8b2a1);
#endif
//print(0, 0, "opened /dev/socket !");
usleep(5 * 1000 * 1000);
//print(0, 10, "attempting sockets !");
@ -211,7 +207,6 @@ static int wupserver_thread(void *arg) {
usleep(1000 * 1000);
}
log_deinit();
return 0;
}