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Code Issues Releases Activity

Update BKTR PoC to make it dump user application RomFS data if an update isn't available.

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This commit is contained in:
Pablo Curiel 2020-08-19 13:20:26 -04:00
parent a19d3f2338
commit f809d795e3
1 changed files with 53 additions and 26 deletions
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79
code_templates/threaded_usb_bktr_dumper.c → code_templates/threaded_usb_romfs_dumper.c
View file

@ -24,7 +24,7 @@
#include "usb.h"
#include "title.h"
#define TEST_BUF_SIZE 0x800000
#define BLOCK_SIZE USB_TRANSFER_BUFFER_SIZE
static Mutex g_fileMutex = 0;
static CondVar g_readCondvar = 0, g_writeCondvar = 0;
@ -32,6 +32,7 @@ static CondVar g_readCondvar = 0, g_writeCondvar = 0;
typedef struct
{
//FILE *fileobj;
RomFileSystemContext *romfs_ctx;
BktrContext *bktr_ctx;
void *data;
size_t data_size;
@ -54,13 +55,13 @@ static void consolePrint(const char *text, ...)
static void read_thread_func(void *arg)
{
ThreadSharedData *shared_data = (ThreadSharedData*)arg;
if (!shared_data || !shared_data->data || !shared_data->total_size)
if (!shared_data || !shared_data->data || !shared_data->total_size || (!shared_data->romfs_ctx && !shared_data->bktr_ctx))
{
shared_data->read_error = true;
goto end;
}
u8 *buf = malloc(TEST_BUF_SIZE);
u8 *buf = malloc(BLOCK_SIZE);
if (!buf)
{
shared_data->read_error = true;
@ -68,10 +69,11 @@ static void read_thread_func(void *arg)
}
u64 file_table_offset = 0;
u64 file_table_size = (shared_data->bktr_ctx ? shared_data->bktr_ctx->patch_romfs_ctx.file_table_size : shared_data->romfs_ctx->file_table_size);
RomFileSystemFileEntry *file_entry = NULL;
char path[FS_MAX_PATH] = {0};
while(file_table_offset < shared_data->bktr_ctx->patch_romfs_ctx.file_table_size)
while(file_table_offset < file_table_size)
{
/* Check if the transfer has been cancelled by the user */
if (shared_data->transfer_cancelled)
@ -81,8 +83,15 @@ static void read_thread_func(void *arg)
}
/* Retrieve RomFS file entry information */
shared_data->read_error = (!(file_entry = bktrGetFileEntryByOffset(shared_data->bktr_ctx, file_table_offset)) || \
!bktrGeneratePathFromFileEntry(shared_data->bktr_ctx, file_entry, path, FS_MAX_PATH, RomFileSystemPathIllegalCharReplaceType_IllegalFsChars));
if (shared_data->bktr_ctx)
{
shared_data->read_error = (!(file_entry = bktrGetFileEntryByOffset(shared_data->bktr_ctx, file_table_offset)) || \
!bktrGeneratePathFromFileEntry(shared_data->bktr_ctx, file_entry, path, FS_MAX_PATH, RomFileSystemPathIllegalCharReplaceType_IllegalFsChars));
} else {
shared_data->read_error = (!(file_entry = romfsGetFileEntryByOffset(shared_data->romfs_ctx, file_table_offset)) || \
!romfsGeneratePathFromFileEntry(shared_data->romfs_ctx, file_entry, path, FS_MAX_PATH, RomFileSystemPathIllegalCharReplaceType_IllegalFsChars));
}
if (shared_data->read_error)
{
condvarWakeAll(&g_writeCondvar);
@ -103,7 +112,7 @@ static void read_thread_func(void *arg)
break;
}
for(u64 offset = 0, blksize = TEST_BUF_SIZE; offset < file_entry->size; offset += blksize)
for(u64 offset = 0, blksize = BLOCK_SIZE; offset < file_entry->size; offset += blksize)
{
if (blksize > (file_entry->size - offset)) blksize = (file_entry->size - offset);
@ -115,7 +124,8 @@ static void read_thread_func(void *arg)
}
/* Read current file data chunk */
shared_data->read_error = !bktrReadFileEntryData(shared_data->bktr_ctx, file_entry, buf, blksize, offset);
shared_data->read_error = (shared_data->bktr_ctx ? !bktrReadFileEntryData(shared_data->bktr_ctx, file_entry, buf, blksize, offset) : \
!romfsReadFileEntryData(shared_data->romfs_ctx, file_entry, buf, blksize, offset));
if (shared_data->read_error)
{
condvarWakeAll(&g_writeCondvar);
@ -227,6 +237,7 @@ int main(int argc, char *argv[])
NcaContext *base_nca_ctx = NULL, *update_nca_ctx = NULL;
Ticket base_tik = {0}, update_tik = {0};
RomFileSystemContext romfs_ctx = {0};
BktrContext bktr_ctx = {0};
ThreadSharedData shared_data = {0};
@ -241,7 +252,7 @@ int main(int argc, char *argv[])
consolePrint("app metadata succeeded\n");
buf = usbAllocatePageAlignedBuffer(TEST_BUF_SIZE);
buf = usbAllocatePageAlignedBuffer(BLOCK_SIZE);
if (!buf)
{
consolePrint("buf failed\n");
@ -273,7 +284,7 @@ int main(int argc, char *argv[])
while(true)
{
consoleClear();
printf("select a base title with an available update.\nthe updated romfs will be dumped via usb.\npress b to exit.\n\n");
printf("select an user application to dump its romfs.\nif an update is available, patch romfs data will be dumped instead.\ndata will be transferred via usb.\npress b to exit.\n\n");
printf("title: %u / %u\n\n", selected_idx + 1, app_count);
for(u32 i = scroll; i < app_count; i++)
@ -312,9 +323,9 @@ int main(int argc, char *argv[])
if (btn_down & KEY_A)
{
if (!titleGetUserApplicationData(app_metadata[selected_idx]->title_id, &user_app_data) || !user_app_data.app_info || !user_app_data.patch_info)
if (!titleGetUserApplicationData(app_metadata[selected_idx]->title_id, &user_app_data) || !user_app_data.app_info)
{
consolePrint("\nthe selected title either doesn't have available base content or update content.\n");
consolePrint("\nthe selected title doesn't have available base content.\n");
utilsSleep(3);
continue;
}
@ -377,26 +388,41 @@ int main(int argc, char *argv[])
goto out2;
}
if (!ncaInitializeContext(update_nca_ctx, user_app_data.patch_info->storage_id, (user_app_data.patch_info->storage_id == NcmStorageId_GameCard ? GameCardHashFileSystemPartitionType_Secure : 0), \
titleGetContentInfoByTypeAndIdOffset(user_app_data.patch_info, NcmContentType_Program, 0), &update_tik))
if (user_app_data.patch_info)
{
consolePrint("nca initialize update ctx failed\n");
goto out2;
if (!ncaInitializeContext(update_nca_ctx, user_app_data.patch_info->storage_id, (user_app_data.patch_info->storage_id == NcmStorageId_GameCard ? GameCardHashFileSystemPartitionType_Secure : 0), \
titleGetContentInfoByTypeAndIdOffset(user_app_data.patch_info, NcmContentType_Program, 0), &update_tik))
{
consolePrint("nca initialize update ctx failed\n");
goto out2;
}
if (!bktrInitializeContext(&bktr_ctx, &(base_nca_ctx->fs_contexts[1]), &(update_nca_ctx->fs_contexts[1])))
{
consolePrint("bktr initialize ctx failed\n");
goto out2;
}
shared_data.bktr_ctx = &bktr_ctx;
bktrGetTotalDataSize(&bktr_ctx, &(shared_data.total_size));
consolePrint("bktr initialize ctx succeeded\n");
} else {
if (!romfsInitializeContext(&romfs_ctx, &(base_nca_ctx->fs_contexts[1])))
{
consolePrint("romfs initialize ctx failed\n");
goto out2;
}
shared_data.romfs_ctx = &romfs_ctx;
romfsGetTotalDataSize(&romfs_ctx, &(shared_data.total_size));
consolePrint("romfs initialize ctx succeeded\n");
}
if (!bktrInitializeContext(&bktr_ctx, &(base_nca_ctx->fs_contexts[1]), &(update_nca_ctx->fs_contexts[1])))
{
consolePrint("bktr initialize ctx failed\n");
goto out2;
}
consolePrint("bktr initialize ctx succeeded\n");
shared_data.bktr_ctx = &bktr_ctx;
shared_data.data = buf;
shared_data.data_size = 0;
shared_data.data_written = 0;
bktrGetTotalDataSize(&bktr_ctx, &(shared_data.total_size));
consolePrint("waiting for usb connection... ");
@ -512,6 +538,7 @@ out2:
utilsWaitForButtonPress(KEY_NONE);
}
romfsFreeContext(&romfs_ctx);
bktrFreeContext(&bktr_ctx);
if (update_nca_ctx) free(update_nca_ctx);