ams_mitm: add titles dir compat shim (to remove in 0.10.1)

Makefile

@@ -58,6 +58,7 @@ dist: all
 	mkdir -p atmosphere-$(AMSVER)/atmosphere/contents/0100000000000037
 	mkdir -p atmosphere-$(AMSVER)/atmosphere/fatal_errors
 	mkdir -p atmosphere-$(AMSVER)/atmosphere/config_templates
+	mkdir -p atmosphere-$(AMSVER)/atmosphere/config
 	cp fusee/fusee-primary/fusee-primary.bin atmosphere-$(AMSVER)/atmosphere/reboot_payload.bin
 	cp fusee/fusee-mtc/fusee-mtc.bin atmosphere-$(AMSVER)/atmosphere/fusee-mtc.bin
 	cp fusee/fusee-secondary/fusee-secondary.bin atmosphere-$(AMSVER)/atmosphere/fusee-secondary.bin
@@ -66,7 +67,7 @@ dist: all
 	cp sept/sept-secondary/sept-secondary.bin atmosphere-$(AMSVER)/sept/sept-secondary.bin
 	cp sept/sept-secondary/sept-secondary_00.enc atmosphere-$(AMSVER)/sept/sept-secondary_00.enc
 	cp sept/sept-secondary/sept-secondary_01.enc atmosphere-$(AMSVER)/sept/sept-secondary_01.enc
-	cp common/defaults/BCT.ini atmosphere-$(AMSVER)/atmosphere/BCT.ini
+	cp common/defaults/BCT.ini atmosphere-$(AMSVER)/atmosphere/config/BCT.ini
 	cp common/defaults/override_config.ini atmosphere-$(AMSVER)/atmosphere/config_templates/override_config.ini
 	cp common/defaults/system_settings.ini atmosphere-$(AMSVER)/atmosphere/config_templates/system_settings.ini
 	cp -r common/defaults/kip_patches atmosphere-$(AMSVER)/atmosphere/kip_patches

fusee/fusee-primary/src/main.c

@@ -51,7 +51,7 @@ static char g_bct0_buffer[BCTO_MAX_SIZE];
 "[stratosphere]\n"
 
 static const char *load_config(void) {
-    if (!read_from_file(g_bct0_buffer, BCTO_MAX_SIZE, "atmosphere/BCT.ini")) {
+    if (!read_from_file(g_bct0_buffer, BCTO_MAX_SIZE, "atmosphere/config/BCT.ini")) {
         print(SCREEN_LOG_LEVEL_DEBUG, "Failed to read BCT0 from SD!\n");
         print(SCREEN_LOG_LEVEL_DEBUG, "Using default BCT0!\n");
         memcpy(g_bct0_buffer, DEFAULT_BCT0, sizeof(DEFAULT_BCT0));

fusee/fusee-secondary/src/main.c

@@ -101,7 +101,7 @@ int main(int argc, void **argv) {
     /* Load BCT0 from SD if needed. */
     if (strcmp(g_stage2_args->bct0, "") == 0) {
         uint32_t bct_tmp_buf[sizeof(g_stage2_args->bct0) / sizeof(uint32_t)] = {0};
-        if (!read_from_file(bct_tmp_buf, sizeof(bct_tmp_buf) - 1, "atmosphere/BCT.ini")) {
+        if (!read_from_file(bct_tmp_buf, sizeof(bct_tmp_buf) - 1, "atmosphere/config/BCT.ini")) {
             fatal_error("Failed to read BCT0 from SD!\n");
         }
         memcpy(g_stage2_args->bct0, bct_tmp_buf, sizeof(bct_tmp_buf));

stratosphere/ams_mitm/source/amsmitm_fs_utils.cpp

@@ -40,6 +40,14 @@ namespace ams::mitm::fs {
             }
         }
 
+        void FormatAtmosphereSdPath(char *dst_path, size_t dst_path_size, const char *subdir, const char *src_path) {
+            if (src_path[0] == '/') {
+                std::snprintf(dst_path, dst_path_size, "/atmosphere/%s%s", subdir, src_path);
+            } else {
+                std::snprintf(dst_path, dst_path_size, "/atmosphere/%s/%s", subdir, src_path);
+            }
+        }
+
         void FormatAtmosphereSdPath(char *dst_path, size_t dst_path_size, ncm::ProgramId program_id, const char *src_path) {
             if (src_path[0] == '/') {
                 std::snprintf(dst_path, dst_path_size, "/atmosphere/contents/%016lx%s", static_cast<u64>(program_id), src_path);
@@ -146,6 +154,15 @@ namespace ams::mitm::fs {
         return fsFsOpenDirectory(fs, fixed_path, mode, out);
     }
 
+    /* TODO: Remove this in Atmosphere 0.10.1. */
+    Result RenameProgramDirectoryForCompatibility(const char *dir_name) {
+        R_TRY(EnsureSdInitialized());
+        char titles_fixed_path[ams::fs::EntryNameLengthMax + 1];
+        char contents_fixed_path[ams::fs::EntryNameLengthMax + 1];
+        FormatAtmosphereSdPath(titles_fixed_path, sizeof(titles_fixed_path), "titles", dir_name);
+        FormatAtmosphereSdPath(contents_fixed_path, sizeof(contents_fixed_path), "contents", dir_name);
+        return fsFsRenameDirectory(&g_sd_filesystem, titles_fixed_path, contents_fixed_path);
+    }
 
     bool HasSdRomfsContent(ncm::ProgramId program_id) {
         /* Check if romfs.bin is present. */

stratosphere/ams_mitm/source/amsmitm_fs_utils.hpp

@@ -38,6 +38,9 @@ namespace ams::mitm::fs {
     Result OpenAtmosphereSdRomfsDirectory(FsDir *out, ncm::ProgramId program_id, const char *path, u32 mode);
     Result OpenAtmosphereRomfsDirectory(FsDir *out, ncm::ProgramId program_id, const char *path, u32 mode, FsFileSystem *fs);
 
+    /* TODO: Remove this in Atmosphere 0.10.1. */
+    Result RenameProgramDirectoryForCompatibility(const char *dir_name);
+
     bool HasSdRomfsContent(ncm::ProgramId program_id);
 
     Result SaveAtmosphereSdFile(FsFile *out, ncm::ProgramId program_id, const char *path, void *data, size_t size);

stratosphere/ams_mitm/source/amsmitm_initialization.cpp

@@ -65,6 +65,17 @@ namespace ams::mitm {
         /* Emummc file protection. */
         FsFile g_emummc_file;
 
+        constexpr inline bool IsHexadecimal(const char *str) {
+            while (*str) {
+                if (std::isxdigit(static_cast<unsigned char>(*str))) {
+                    str++;
+                } else {
+                    return false;
+                }
+            }
+            return true;
+        }
+
         void GetBackupFileName(char *dst, size_t dst_size, const char *serial_number, const char *fn) {
             if (strlen(serial_number) > 0) {
                 std::snprintf(dst, dst_size, "automatic_backups/%s_%s", serial_number, fn);
@@ -167,6 +178,23 @@ namespace ams::mitm {
             }
         }
 
+        void RenameTitlesDirectoryProgramFoldersForCompatibility() {
+            FsDir titles_dir;
+            if (R_FAILED(mitm::fs::OpenAtmosphereSdDirectory(&titles_dir, "/titles", ams::fs::OpenDirectoryMode_Directory))) {
+                return;
+            }
+            ON_SCOPE_EXIT { fsDirClose(&titles_dir); };
+
+            ams::fs::DirectoryEntry dir_entry;
+            s64 read_entries;
+            while (R_SUCCEEDED(fsDirRead(&titles_dir, &read_entries, 1, &dir_entry)) && read_entries == 1) {
+                if (strlen(dir_entry.name) == 2 * sizeof(ncm::ProgramId) && IsHexadecimal(dir_entry.name)) {
+                    /* We found a program directory, try to rename it. Failure is allowed. */
+                    mitm::fs::RenameProgramDirectoryForCompatibility(dir_entry.name);
+                }
+            }
+        }
+
         /* Initialization implementation */
         void InitializeThreadFunc(void *arg) {
             /* Wait for the SD card to be ready. */
@@ -182,6 +210,10 @@ namespace ams::mitm {
             /* Backup Calibration Binary and BIS keys. */
             CreateAutomaticBackups();
 
+            /* Rename program folders in the titles directory. */
+            /* TODO: Remove this in Atmosphere 0.10.1. */
+            RenameTitlesDirectoryProgramFoldersForCompatibility();
+
             /* If we're emummc, persist a write-handle to prevent other processes from touching the image. */
             if (emummc::IsActive()) {
                 if (const char *emummc_file_path = emummc::GetFilePath(); emummc_file_path != nullptr) {

stratosphere/ams_mitm/source/set_mitm/settings_sd_kvs.cpp

@@ -291,7 +291,7 @@ namespace ams::settings::fwdbg {
         Result LoadSdCardKeyValueStore() {
             /* Open file. */
             FsFile config_file;
-            if (R_FAILED(ams::mitm::fs::OpenAtmosphereSdFile(&config_file, "/system_settings.ini", fs::OpenMode_Read))) {
+            if (R_FAILED(ams::mitm::fs::OpenAtmosphereSdFile(&config_file, "/config/system_settings.ini", fs::OpenMode_Read))) {
                 /* It's okay if the file isn't readable/present, because we already loaded defaults. */
                 return ResultSuccess();
             }

stratosphere/libstratosphere/source/cfg/cfg_override.cpp

@@ -230,7 +230,7 @@ namespace ams::cfg {
         }
 
         void RefreshOverrideConfiguration() {
-            ParseIniFile(OverrideConfigIniHandler, "/atmosphere/override_config.ini", nullptr);
+            ParseIniFile(OverrideConfigIniHandler, "/atmosphere/config/override_config.ini", nullptr);
         }
 
         ContentSpecificOverrideConfig GetContentOverrideConfig(ncm::ProgramId program_id) {