Add system mounting

Also fixed sizes not re rendering when scrolling

source/meme/external_utils.c

@@ -30,8 +30,11 @@ extern void sd_unmount();
 static bool   _key_exists(const void *data) { return memcmp(data, zeros, 0x10); };
 static void   _generate_kek(u32 ks, const void *key_source, void *master_key, const void *kek_seed, const void *key_seed);
 
-int launch_payload(char *path, bool update)
+sdmmc_storage_t storage;
-{
+emmc_part_t *system_part;
+sdmmc_t sdmmc;
+
+int launch_payload(char *path, bool update){
 	if (!update) gfx_clear_grey(0x1B);
 	gfx_con_setpos(0, 0);
 	if (!path)
@@ -89,10 +92,8 @@ int launch_payload(char *path, bool update)
 }
 
 void dump_biskeys(u8 bis_key[4][32]){
-	tsec_ctxt_t tsec_ctxt;
-    sdmmc_t sdmmc;
-	sdmmc_storage_t storage;
 	u8 temp_key[0x10], device_key[0x10] = {0};
+    tsec_ctxt_t tsec_ctxt;
 
 	int retries = 0;
 
@@ -177,6 +178,46 @@ void dump_biskeys(u8 bis_key[4][32]){
         se_aes_crypt_block_ecb(8, 0, bis_key[2] + 0x10, bis_key_source[2] + 0x10);
         memcpy(bis_key[3], bis_key[2], 0x20);
     }
+
+    sdmmc_storage_set_mmc_partition(&storage, 0);
+    // Parse eMMC GPT.
+    LIST_INIT(gpt);
+    nx_emmc_gpt_parse(&gpt, &storage);
+
+    /*
+    char part_name[37] = "SYSTEM";
+
+    // todo: menu selection for this
+
+    u32 bis_key_index = 0;
+    if (strcmp(part_name, "PRODINFOF") == 0)
+        bis_key_index = 0;
+    else if (strcmp(part_name, "SAFE") == 0)
+        bis_key_index = 1;
+    else if (strcmp(part_name, "SYSTEM") == 0)
+        bis_key_index = 2;
+    else if (strcmp(part_name, "USER") == 0)
+        bis_key_index = 3;
+    else {
+        gfx_printf("Partition name %s unrecognized.", part_name);
+        return;
+    }
+    */
+    se_aes_key_set(8, bis_key[2] + 0x00, 0x10);
+    se_aes_key_set(9, bis_key[2] + 0x10, 0x10);
+
+    system_part = nx_emmc_part_find(&gpt, "SYSTEM");
+    if (!system_part) {
+        gfx_printf("Failed to locate SYSTEM partition.");
+        return;
+    }
+
+    __attribute__ ((aligned (16))) FATFS emmc_fs;
+    if (f_mount(&emmc_fs, "emmc:", 1)) {
+        gfx_printf("Mount failed.");
+        return;
+    }
+    return;
 }
 
 static void _generate_kek(u32 ks, const void *key_source, void *master_key, const void *kek_seed, const void *key_seed) {

source/meme/graphics.c

@@ -14,7 +14,7 @@ int _copystring(char *out, const char *in, int copynumb){
     if (strlength > copynumb + 1) strlength = copynumb;
     memset(out + strlength, '\0', 1);
     int ret = copynumb - strlength;
-    return ret;
+    return ret + 4;
 }
 
 int messagebox(char *message){

source/meme/main.c

@@ -1,4 +1,5 @@
 #include <string.h>
+#include <stdio.h>
 #include "../gfx/di.h"
 #include "../gfx/gfx.h"
 #include "../utils/btn.h"
@@ -15,18 +16,20 @@
 extern bool sd_mount();
 extern void sd_unmount();
 
+static u8 bis_keys[4][0x20];
+
 void meme_main(){
     utils_gfx_init();
     //dump_keys();
 
-    u8 bis_keys[4][0x20] = {0};
+    /*
-    dump_biskeys(bis_keys);
-    
     sdmmc_storage_t storage;
     sdmmc_t sdmmc;
 
     sdmmc_storage_init_mmc(&storage, &sdmmc, SDMMC_4, SDMMC_BUS_WIDTH_8, 4);
-    sdmmc_storage_set_mmc_partition(&storage, 1);
+    sdmmc_storage_set_mmc_partition(&storage, 1); */
+
+    dump_biskeys(bis_keys);
 
     char *options[5];
     char *itemsinfolder[1000];
@@ -41,13 +44,13 @@ void meme_main(){
             addchartoarray("[SD:/] SD card", options, i);
             i++;
         }
-        //addchartoarray("[emmc:/] SYSTEM", options, i);
+        addchartoarray("[emmc:/] SYSTEM", options, i);
-        addchartoarray("\nTools", options, i);
+        addchartoarray("\nTools", options, i+1);
-        addchartoarray("About", options, i+1);
+        addchartoarray("About", options, i+2);
-        addchartoarray("Exit", options, i+2);
+        addchartoarray("Exit", options, i+3);
 
         meme_clearscreen();
-        ret = gfx_menulist(32, options, (i + 3));
+        ret = gfx_menulist(32, options, (i + 4));
 
         if (strcmp(options[ret - 1], "[SD:/] SD card") == 0){
             sdexplorer(itemsinfolder, muhbits, "sd:/");

source/meme/mainfunctions.c

@@ -65,10 +65,10 @@ void sdexplorer(char *items[], unsigned int *muhbits, char *rootpath){
     int value = 1;
     int copymode = -1;
     int folderamount = 0;
-    char path[PATHSIZE] = "sd:/";
+    char path[PATHSIZE] = "";
+    char clipboard[PATHSIZE] = "";
     strcpy(path, rootpath);
     char app[20], rpp[20];
-    char clipboard[PATHSIZE] = "";
     int temp = -1;
     strcpy(app, rootpath);
     strcpy(rpp, app);
@@ -80,6 +80,10 @@ void sdexplorer(char *items[], unsigned int *muhbits, char *rootpath){
         gfx_con_setpos(0, 0);
         gfx_box(0, 0, 719, 15, COLOR_WHITE);
         folderamount = readfolder(items, muhbits, path);
+        if (folderamount == -1){
+            messagebox("\nInvalid path\n\nReturning to main menu");
+            break;
+        }
         gfx_printf("%k%pTegraExplorer - %s", COLOR_DEFAULT, COLOR_WHITE, app);
         gfx_con_setpos(39 * 16, 0);
         gfx_printf("%d\n%k%p", folderamount - 2, COLOR_WHITE, COLOR_DEFAULT);
@@ -91,9 +95,10 @@ void sdexplorer(char *items[], unsigned int *muhbits, char *rootpath){
         }
         else if (value == 2) {
             if (copymode != -1){
-                copywithpath(clipboard, path, copymode);
+                copywithpath(clipboard, path, copymode, app);
                 copymode = -1;
             }
+            else messagebox("\nThe Clipboard is empty!");
         }
         else {
             if(muhbits[value - 1] & OPTION1) addpartpath(path, items[value - 1], app);

source/meme/utils.c

@@ -87,9 +87,10 @@ int readfolder(char *items[], unsigned int *muhbits, const char *path){
     _mallocandaddfolderbit(muhbits, 0, true);
     _mallocandaddfolderbit(muhbits, 1, true);
 
+    
     if (f_opendir(&dir, path)) {
         gfx_printf("\nFailed to open %s", path);
-        return 0;
+        return -1;
     }
     else {
         while (!f_readdir(&dir, &fno) && fno.fname[0]){
@@ -158,12 +159,12 @@ int copy(const char *src, const char *dst){
     return 0;
 }
 
-int copywithpath(const char *src, const char *dstpath, int mode){
+int copywithpath(const char *src, const char *dstpath, int mode, char *app){
     FILINFO fno;
     f_stat(src, &fno);
     char dst[PATHSIZE];
     strcpy(dst, dstpath);
-    if (strcmp(dstpath, "sd:/") != 0) strcat(dst, "/");
+    if (strcmp(dstpath, app) != 0) strcat(dst, "/");
     strcat(dst, fno.fname);
     int ret = -1;
     if (mode == 0) ret = copy(src, dst);

source/meme/utils.h

@@ -13,6 +13,6 @@ void addpartpath(char *path, char *add, char *root);
 int readfolder(char *items[], unsigned int *muhbits, const char *path);
 int copy(const char *src, const char *dst);
 void addchartoarray(char *add, char *items[], int spot);
-int copywithpath(const char *src, const char *dstpath, int mode);
+int copywithpath(const char *src, const char *dstpath, int mode, char *app);
 void return_readable_byte_amounts(unsigned long int size, char *in);
 int getfilesize(const char *path);