Add fw dumping

- also fatfs is stupid
- also close files properly on a failed copy
- also check for errors during folder readouts
- also make sure holding vol- doesn't dump the keys anyway

source/tegraexplorer/mainmenu.c

@@ -20,6 +20,7 @@ MenuEntry_t mainMenuEntries[] = {
     {.optionUnion = COLORTORGB(COLOR_YELLOW), .name = "Emummc"},
     {.B = 255, .G = 255, .name = "Test Controllers"},
     {.R = 255, .name = "Cause an exception"},
+    {.optionUnion = COLORTORGB(COLOR_BLUE), .name = "Dump Firmware"},
     {.optionUnion = COLORTORGB(COLOR_ORANGE), .name = "View dumped keys"},
     {.R = 255, .name = "Reboot to payload"}
 };
@@ -73,6 +74,7 @@ menuPaths mainMenuPaths[] = {
     HandleEMUMMC,
     TestControllers,
     CrashTE,
+    DumpSysFw,
     ViewKeys,
     RebootToPayload
 };

source/tegraexplorer/tools.c

@@ -3,6 +3,20 @@
 #include "../gfx/gfxutils.h"
 #include "../gfx/menu.h"
 #include "../hid/hid.h"
+#include <libs/fatfs/ff.h>
+#include "../keys/keys.h"
+#include "../keys/nca.h"
+#include <storage/nx_sd.h>
+#include "../fs/fsutils.h"
+#include <utils/util.h>
+#include "../storage/mountmanager.h"
+#include "../err.h"
+#include <utils/sprintf.h>
+#include <mem/heap.h>
+#include "../tegraexplorer/tconf.h"
+#include "../fs/readers/folderReader.h"
+#include <string.h>
+#include "../fs/fscopy.h"
 
 void TestControllers(){
     gfx_clearscreen();
@@ -26,4 +40,101 @@ extern int launch_payload(char *path);
 
 void RebootToPayload(){
     launch_payload("atmosphere/reboot_payload.bin");
+}
+
+void DumpSysFw(){
+	char sysPath[25 + 36 + 3 + 1]; // 24 for "bis:/Contents/registered", 36 for ncaName.nca, 3 for /00, and 1 to make sure :)
+	char *baseSdPath;
+
+	u32 timer = get_tmr_s();
+
+	if (!sd_mount())
+		return;
+
+	if (connectMMC(MMC_CONN_EMMC))
+		return;
+
+	if (!TConf.keysDumped)
+		return;
+
+	ErrCode_t err = mountMMCPart("SYSTEM");
+	if (err.err){
+		DrawError(err);
+		return;
+	}
+
+	baseSdPath = malloc(36 + 16);
+	sprintf(baseSdPath, "sd:/tegraexplorer/Firmware/%d (%s)", TConf.pkg1ver, TConf.pkg1ID);
+	int baseSdPathLen = strlen(baseSdPath);
+
+	f_mkdir("sd:/tegraexplorer");
+	f_mkdir("sd:/tegraexplorer/Firmware");
+
+	gfx_clearscreen();
+
+	gfx_printf("Pkg1 id: '%s', kb %d\n", TConf.pkg1ID, TConf.pkg1ver);
+	if (FileExists(baseSdPath)){
+		SETCOLOR(COLOR_ORANGE, COLOR_DEFAULT);
+		gfx_printf("Destination already exists. Replace?   ");
+		if (!MakeYesNoHorzMenu(3, COLOR_DEFAULT)){
+			free(baseSdPath);
+			return;
+		}
+		RESETCOLOR;
+		gfx_printf("\nReminder! delete the folder. i can't delete recursively yet");
+		gfx_putc('\n');
+	}
+
+	f_mkdir(baseSdPath);
+
+	gfx_printf("Out: %s\nReading entries...\n", baseSdPath);
+	int readRes = 0;
+	Vector_t fileVec = ReadFolder("bis:/Contents/registered", &readRes);
+	if (readRes){
+		DrawError(newErrCode(readRes));
+		free(baseSdPath);
+		return;
+	}
+
+	gfx_printf("Starting dump...\n");
+	SETCOLOR(COLOR_GREEN, COLOR_DEFAULT);
+
+	int res = 0;
+	int total = 1;
+	vecDefArray(FSEntry_t*, fsEntries, fileVec);
+	for (int i = 0; i < fileVec.count; i++){
+		sprintf(sysPath, (fsEntries[i].isDir) ? "%s/%s/00" : "%s/%s", "bis:/Contents/registered", fsEntries[i].name);
+		int contentType = GetNcaType(sysPath);
+
+		if (contentType < 0){
+			res = 1;
+			break;
+		}
+
+		char *sdPath = malloc(baseSdPathLen + 45);
+		sprintf(sdPath, "%s/%s", baseSdPath, fsEntries[i].name);
+		if (contentType == Meta)
+			memcpy(sdPath + strlen(sdPath) - 4, ".cnmt.nca", 10);
+		
+		gfx_printf("[%3d / %3d] %s\r", total, fileVec.count, fsEntries[i].name);
+		total++;
+		err = FileCopy(sysPath, sdPath, 0);
+		free(sdPath);
+		if (err.err){
+			DrawError(err);
+			res = 1;
+			break;
+		}
+	}
+	clearFileVector(&fileVec);
+
+	RESETCOLOR;
+
+	if (res){
+		gfx_printf("\nDump failed...\n");
+	}
+
+	gfx_printf("\n\nDone! Time taken: %ds\nPress any key to exit", get_tmr_s() - timer);
+	free(baseSdPath);
+	hidWait();
 }

source/tegraexplorer/tools.h

@@ -1,4 +1,5 @@
 #pragma once
 
 void RebootToPayload();
-void TestControllers();
+void TestControllers();
+void DumpSysFw();