Added config dumper (for Citra)

d0k3 · Nov 10, 2016 · 5ab96d2 · 5ab96d2
1 parent ea16e8c
commit 5ab96d2
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Showing 3 changed files with 51 additions and 2 deletions.
diff --git a/source/decryptor/nandfat.c b/source/decryptor/nandfat.c
@@ -795,6 +795,52 @@ u32 AutoFixCtrnand(u32 param)
     return 0;
 }
 
+u32 DumpCitraConfig(u32 param)
+{
+    (void) (param); // param is unused here
+
+    static const u32 config_offset[2] = { 0x6000, 0x25000 };
+    static const u32 config_size = 0x8000;
+    static const u8 magic[] = { 0x41, 0x00, 0xE4, 0x41, 0x00, 0x00, 0x00, 0x00, 0x39, 0x00 };
+
+    NandFileInfo* f_info = GetNandFileInfo(F_CONFIGSAVE);
+    PartitionInfo* p_info = GetPartitionInfo(f_info->partition_id);
+    u8* buffer = BUFFER_ADDRESS;
+
+    u32 p_active = 0;
+    u32 offset;
+    u32 size;
+
+    // search for config save
+    if (DebugSeekFileInNand(&offset, &size, f_info->name_l, f_info->path, p_info) != 0)
+        return 1;
+
+    // get active partition from DISA
+    if (DecryptNandToMem(buffer, offset, 0x200, p_info) != 0)
+        return 1;
+    p_active = (getle32(buffer + 0x168)) ? 1 : 0;
+
+    Debug("");
+    for (u32 i = 0; i < 2; i++) {
+        char filename[64];
+        u32 p = (i + p_active) % 2; // offset / partition to try;
+        Debug("Trying offset 0x%06X, partition %u...", config_offset[p], p);
+        if (DecryptNandToMem(buffer, offset + config_offset[p], 0x200, p_info) != 0)
+            return 1;
+        if (memcmp(buffer, magic, sizeof(magic)) != 0) {
+            Debug("Magic not found!");
+            continue;
+        }
+        if (OutputFileNameSelector(filename, "config", NULL) != 0)
+            return 1;
+        if (DecryptNandToFile(filename, offset + config_offset[p], config_size, p_info, NULL) != 0)
+            return 1;
+        return 0;
+    }
+
+    return 1; // failed if arriving here
+}
+
 u32 UpdateSeedDb(u32 param)
 {
     (void) (param); // param is unused here

diff --git a/source/decryptor/nandfat.h b/source/decryptor/nandfat.h
@@ -52,4 +52,5 @@ u32 DumpHealthAndSafety(u32 param);
 u32 InjectHealthAndSafety(u32 param);
 u32 DumpNcchFirms(u32 param);
 u32 AutoFixCtrnand(u32 param);
+u32 DumpCitraConfig(u32 param);
 u32 UpdateSeedDb(u32 param);
diff --git a/source/main.c b/source/main.c
@@ -284,23 +284,25 @@ MenuInfo menu[] =
         }
     },
     {
-        "Miscellaneous... (SysNAND)", 7, // ID 16
+        "Miscellaneous... (SysNAND)", 8, // ID 16
         {
             { "Health&Safety Dump",           &DumpHealthAndSafety,   0 },
             { "Health&Safety Inject",         &InjectHealthAndSafety, N_NANDWRITE },
             { "GBA VC Save Dump",             &DumpGbaVcSave,         0 },
             { "GBA VC Save Inject",           &InjectGbaVcSave,       N_NANDWRITE },
             { "Update SeedDB",                &UpdateSeedDb,          0 },
+            { "Dump Config (for Citra)",      &DumpCitraConfig,       0 },
             { "NCCH FIRMs Dump",              &DumpNcchFirms,         0 },
             { "FIRM ARM9 Decryptor",          &DecryptFirmArm9File,   0 }
         }
     },
     {
-        "Miscellaneous... (EmuNAND)", 5, // ID 17
+        "Miscellaneous... (EmuNAND)", 6, // ID 17
         {            
             { "Health&Safety Dump",           &DumpHealthAndSafety,   N_EMUNAND },
             { "Health&Safety Inject",         &InjectHealthAndSafety, N_NANDWRITE | N_EMUNAND },
             { "Update SeedDB",                &UpdateSeedDb,          N_EMUNAND },
+            { "Dump Config (for Citra)",      &DumpCitraConfig,       N_EMUNAND },
             { "NCCH FIRMs Dump",              &DumpNcchFirms,         N_EMUNAND },
             { "FIRM ARM9 Decryptor",          &DecryptFirmArm9File,   0 }
         }