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nxdumptool/code_templates/system_title_dumper.c

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/*
* main.c
*
* Copyright (c) 2020, DarkMatterCore <pabloacurielz@gmail.com>.
*
* This file is part of nxdumptool (https://github.com/DarkMatterCore/nxdumptool).
*
* nxdumptool is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* nxdumptool is distributed in the hope that 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 <https://www.gnu.org/licenses/>.
*/
#include "nxdt_utils.h"
#include "nca.h"
#include "title.h"
#include "pfs.h"
#include "romfs.h"
#define BLOCK_SIZE 0x800000
#define OUTPATH "sdmc:/systitle_dumps"
static PadState g_padState = {0};
static u8 *buf = NULL;
static FILE *filefd = NULL;
static char path[FS_MAX_PATH * 2] = {0};
static void utilsScanPads(void)
{
padUpdate(&g_padState);
}
static u64 utilsGetButtonsDown(void)
{
return padGetButtonsDown(&g_padState);
}
static u64 utilsGetButtonsHeld(void)
{
return padGetButtons(&g_padState);
}
static void utilsWaitForButtonPress(u64 flag)
{
/* Don't consider stick movement as button inputs. */
if (!flag) flag = ~(HidNpadButton_StickLLeft | HidNpadButton_StickLRight | HidNpadButton_StickLUp | HidNpadButton_StickLDown | HidNpadButton_StickRLeft | HidNpadButton_StickRRight | \
HidNpadButton_StickRUp | HidNpadButton_StickRDown);
while(appletMainLoop())
{
utilsScanPads();
if (utilsGetButtonsDown() & flag) break;
}
}
static void consolePrint(const char *text, ...)
{
va_list v;
va_start(v, text);
vfprintf(stdout, text, v);
va_end(v);
consoleUpdate(NULL);
}
static void dumpPartitionFs(TitleInfo *info, NcaFsSectionContext *nca_fs_ctx)
{
if (!buf || !info || !nca_fs_ctx) return;
u32 pfs_entry_count = 0;
PartitionFileSystemContext pfs_ctx = {0};
PartitionFileSystemEntry *pfs_entry = NULL;
char *pfs_entry_name = NULL;
size_t path_len = 0;
*path = '\0';
if (!pfsInitializeContext(&pfs_ctx, nca_fs_ctx))
{
consolePrint("pfs initialize ctx failed!\n");
goto end;
}
if (!(pfs_entry_count = pfsGetEntryCount(&pfs_ctx)))
{
consolePrint("pfs entry count is zero!\n");
goto end;
}
snprintf(path, sizeof(path), OUTPATH "/%016lX - %s/%s (%s)/Section %u (%s)", info->meta_key.id, info->app_metadata->lang_entry.name, ((NcaContext*)nca_fs_ctx->nca_ctx)->content_id_str, \
titleGetNcmContentTypeName(((NcaContext*)nca_fs_ctx->nca_ctx)->content_type), nca_fs_ctx->section_num, ncaGetFsSectionTypeName(nca_fs_ctx));
utilsCreateDirectoryTree(path, true);
path_len = strlen(path);
for(u32 i = 0; i < pfs_entry_count; i++)
{
if (!(pfs_entry = pfsGetEntryByIndex(&pfs_ctx, i)) || !(pfs_entry_name = pfsGetEntryNameByIndex(&pfs_ctx, i)) || !strlen(pfs_entry_name))
{
consolePrint("pfs get entry / get name #%u failed!\n", i);
goto end;
}
path[path_len] = '\0';
strcat(path, "/");
strcat(path, pfs_entry_name);
utilsReplaceIllegalCharacters(path + path_len + 1, true);
filefd = fopen(path, "wb");
if (!filefd)
{
consolePrint("failed to create \"%s\"!\n", path);
goto end;
}
consolePrint("dumping \"%s\"...\n", pfs_entry_name);
u64 blksize = BLOCK_SIZE;
for(u64 j = 0; j < pfs_entry->size; j += blksize)
{
if (blksize > (pfs_entry->size - j)) blksize = (pfs_entry->size - j);
if (!pfsReadEntryData(&pfs_ctx, pfs_entry, buf, blksize, j))
{
consolePrint("failed to read 0x%lX block from offset 0x%lX!\n", blksize, j);
goto end;
}
fwrite(buf, 1, blksize, filefd);
}
fclose(filefd);
filefd = NULL;
}
consolePrint("pfs dump complete\n");
end:
if (filefd)
{
fclose(filefd);
remove(path);
}
if (*path) utilsCommitSdCardFileSystemChanges();
pfsFreeContext(&pfs_ctx);
}
static void dumpRomFs(TitleInfo *info, NcaFsSectionContext *nca_fs_ctx)
{
if (!buf || !info || !nca_fs_ctx) return;
u64 romfs_file_table_offset = 0;
RomFileSystemContext romfs_ctx = {0};
RomFileSystemFileEntry *romfs_file_entry = NULL;
size_t path_len = 0;
*path = '\0';
if (!romfsInitializeContext(&romfs_ctx, nca_fs_ctx))
{
consolePrint("romfs initialize ctx failed!\n");
goto end;
}
snprintf(path, sizeof(path), OUTPATH "/%016lX - %s/%s (%s)/Section %u (%s)", info->meta_key.id, info->app_metadata->lang_entry.name, ((NcaContext*)nca_fs_ctx->nca_ctx)->content_id_str, \
titleGetNcmContentTypeName(((NcaContext*)nca_fs_ctx->nca_ctx)->content_type), nca_fs_ctx->section_num, ncaGetFsSectionTypeName(nca_fs_ctx));
utilsCreateDirectoryTree(path, true);
path_len = strlen(path);
while(romfs_file_table_offset < romfs_ctx.file_table_size)
{
if (!(romfs_file_entry = romfsGetFileEntryByOffset(&romfs_ctx, romfs_file_table_offset)) || \
!romfsGeneratePathFromFileEntry(&romfs_ctx, romfs_file_entry, path + path_len, sizeof(path) - path_len, RomFileSystemPathIllegalCharReplaceType_KeepAsciiCharsOnly))
{
consolePrint("romfs get entry / generate path failed for 0x%lX!\n", romfs_file_table_offset);
goto end;
}
utilsCreateDirectoryTree(path, false);
filefd = fopen(path, "wb");
if (!filefd)
{
consolePrint("failed to create \"%s\"!\n", path);
goto end;
}
consolePrint("dumping \"%s\"...\n", path + path_len);
u64 blksize = BLOCK_SIZE;
for(u64 j = 0; j < romfs_file_entry->size; j += blksize)
{
if (blksize > (romfs_file_entry->size - j)) blksize = (romfs_file_entry->size - j);
if (!romfsReadFileEntryData(&romfs_ctx, romfs_file_entry, buf, blksize, j))
{
consolePrint("failed to read 0x%lX block from offset 0x%lX!\n", blksize, j);
goto end;
}
fwrite(buf, 1, blksize, filefd);
}
fclose(filefd);
filefd = NULL;
romfs_file_table_offset += ALIGN_UP(sizeof(RomFileSystemFileEntry) + romfs_file_entry->name_length, 4);
}
consolePrint("romfs dump complete\n");
end:
if (filefd)
{
fclose(filefd);
remove(path);
}
if (*path) utilsCommitSdCardFileSystemChanges();
romfsFreeContext(&romfs_ctx);
}
static void dumpFsSection(TitleInfo *info, NcaFsSectionContext *nca_fs_ctx)
{
if (!buf || !info || !nca_fs_ctx) return;
switch(nca_fs_ctx->section_type)
{
case NcaFsSectionType_PartitionFs:
dumpPartitionFs(info, nca_fs_ctx);
break;
case NcaFsSectionType_RomFs:
case NcaFsSectionType_Nca0RomFs:
dumpRomFs(info, nca_fs_ctx);
break;
default:
consolePrint("invalid section type!\n");
break;
}
}
int main(int argc, char *argv[])
{
int ret = 0;
if (!utilsInitializeResources(argc, (const char**)argv))
{
ret = -1;
goto out;
}
/* Configure input. */
/* Up to 8 different, full controller inputs. */
/* Individual Joy-Cons not supported. */
padConfigureInput(8, HidNpadStyleSet_NpadFullCtrl);
padInitializeWithMask(&g_padState, 0x1000000FFUL);
consoleInit(NULL);
u32 app_count = 0;
TitleApplicationMetadata **app_metadata = NULL;
TitleInfo *cur_title_info = NULL;
u32 selected_idx = 0, menu = 0, page_size = 30, scroll = 0;
u32 title_idx = 0, title_scroll = 0, nca_idx = 0;
char nca_id_str[0x21] = {0};
NcaContext *nca_ctx = NULL;
app_metadata = titleGetApplicationMetadataEntries(true, &app_count);
if (!app_metadata || !app_count)
{
consolePrint("app metadata failed\n");
goto out2;
}
consolePrint("app metadata succeeded\n");
buf = malloc(BLOCK_SIZE);
if (!buf)
{
consolePrint("buf failed\n");
goto out2;
}
consolePrint("buf succeeded\n");
nca_ctx = calloc(1, sizeof(NcaContext));
if (!nca_ctx)
{
consolePrint("nca ctx buf failed\n");
goto out2;
}
consolePrint("nca ctx buf succeeded\n");
utilsSleep(1);
while(true)
{
consoleClear();
printf("select a %s.", menu == 0 ? "system title to view its contents" : (menu == 1 ? "content" : "fs section"));
printf("\npress b to %s.\n\n", menu == 0 ? "exit" : "go back");
if (menu == 0)
{
printf("title: %u / %u\n", selected_idx + 1, app_count);
printf("selected title: %016lX - %s\n\n", app_metadata[selected_idx]->title_id, app_metadata[selected_idx]->lang_entry.name);
}
if (menu >= 1) printf("selected title: %016lX - %s\n\n", app_metadata[title_idx]->title_id, app_metadata[title_idx]->lang_entry.name);
if (menu == 2) printf("selected content: %s (%s)\n\n", nca_id_str, titleGetNcmContentTypeName(cur_title_info->content_infos[nca_idx].content_type));
u32 max_val = (menu == 0 ? app_count : (menu == 1 ? cur_title_info->content_count : NCA_FS_HEADER_COUNT));
for(u32 i = scroll; i < max_val; i++)
{
if (i >= (scroll + page_size)) break;
printf("%s", i == selected_idx ? " -> " : " ");
if (menu == 0)
{
printf("%016lX - %s\n", app_metadata[i]->title_id, app_metadata[i]->lang_entry.name);
} else
if (menu == 1)
{
utilsGenerateHexStringFromData(nca_id_str, sizeof(nca_id_str), cur_title_info->content_infos[i].content_id.c, sizeof(cur_title_info->content_infos[i].content_id.c), false);
printf("%s (%s)\n", nca_id_str, titleGetNcmContentTypeName(cur_title_info->content_infos[i].content_type));
} else
if (menu == 2)
{
printf("fs section #%u (%s)\n", i + 1, ncaGetFsSectionTypeName(&(nca_ctx->fs_ctx[i])));
}
}
printf("\n");
consoleUpdate(NULL);
u64 btn_down = 0, btn_held = 0;
while(!btn_down && !btn_held)
{
utilsScanPads();
btn_down = utilsGetButtonsDown();
btn_held = utilsGetButtonsHeld();
}
if (btn_down & HidNpadButton_A)
{
bool error = false;
if (menu == 0)
{
title_idx = selected_idx;
title_scroll = scroll;
} else
if (menu == 1)
{
nca_idx = selected_idx;
utilsGenerateHexStringFromData(nca_id_str, sizeof(nca_id_str), cur_title_info->content_infos[nca_idx].content_id.c, sizeof(cur_title_info->content_infos[nca_idx].content_id.c), false);
}
menu++;
if (menu == 1)
{
cur_title_info = titleGetInfoFromStorageByTitleId(NcmStorageId_BuiltInSystem, app_metadata[title_idx]->title_id);
if (!cur_title_info)
{
consolePrint("failed to get title info\n");
error = true;
}
} else
if (menu == 2)
{
if (!ncaInitializeContext(nca_ctx, cur_title_info->storage_id, 0, &(cur_title_info->content_infos[nca_idx]), NULL))
{
consolePrint("nca initialize ctx failed\n");
error = true;
}
} else
if (menu == 3)
{
consoleClear();
utilsSetLongRunningProcessState(true);
dumpFsSection(cur_title_info, &(nca_ctx->fs_ctx[selected_idx]));
utilsSetLongRunningProcessState(false);
}
if (error || menu >= 3)
{
consolePrint("press any button to continue\n");
utilsWaitForButtonPress(0);
menu--;
} else {
selected_idx = scroll = 0;
}
} else
if ((btn_down & HidNpadButton_Down) || (btn_held & (HidNpadButton_StickLDown | HidNpadButton_StickRDown)))
{
selected_idx++;
if (selected_idx >= max_val)
{
if (btn_down & HidNpadButton_Down)
{
selected_idx = scroll = 0;
} else {
selected_idx = (max_val - 1);
}
} else
if (selected_idx >= (scroll + (page_size / 2)) && max_val > (scroll + page_size))
{
scroll++;
}
} else
if ((btn_down & HidNpadButton_Up) || (btn_held & (HidNpadButton_StickLUp | HidNpadButton_StickRUp)))
{
selected_idx--;
if (selected_idx == UINT32_MAX)
{
if (btn_down & HidNpadButton_Up)
{
selected_idx = (max_val - 1);
scroll = (max_val >= page_size ? (max_val - page_size) : 0);
} else {
selected_idx = 0;
}
} else
if (selected_idx < (scroll + (page_size / 2)) && scroll > 0)
{
scroll--;
}
} else
if (btn_down & HidNpadButton_B)
{
menu--;
if (menu == UINT32_MAX)
{
break;
} else {
selected_idx = (menu == 0 ? title_idx : nca_idx);
scroll = (menu == 0 ? title_scroll : 0);
if (menu == 0) titleFreeTitleInfo(&cur_title_info);
}
}
if (btn_held & (HidNpadButton_StickLDown | HidNpadButton_StickRDown | HidNpadButton_StickLUp | HidNpadButton_StickRUp)) svcSleepThread(50000000); // 50 ms
}
out2:
if (menu != UINT32_MAX)
{
consolePrint("press any button to exit\n");
utilsWaitForButtonPress(0);
}
if (nca_ctx) free(nca_ctx);
if (buf) free(buf);
if (app_metadata) free(app_metadata);
out:
utilsCloseResources();
consoleExit(NULL);
return ret;
}
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