mirror of
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73 lines
3.6 KiB
C
73 lines
3.6 KiB
C
#ifndef SM_FILESYSTEM_H
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#define SM_FILESYSTEM_H
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#include <dirent.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include "sm_limits.h"
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// Check whether a title is present in the installed app set.
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bool is_installed(const char *title_id);
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// Check whether /user/appmeta/<TITLE_ID>/param.json exists.
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bool has_appmeta_data(const char *title_id);
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// Check whether a title currently has mounted data.
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bool is_data_mounted(const char *title_id);
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// Read the mount.lnk source path for a title tracked under /user/app.
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bool read_mount_link(const char *title_id, char *out, size_t out_size);
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// Atomically persist the mount.lnk source path for a title.
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bool write_mount_link(const char *title_id, const char *source_path);
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// Read the optional backing image path retained for an image-backed title.
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bool read_mount_image_link(const char *title_id, char *out, size_t out_size);
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// Persist the outer backing-image path for an already staged title.
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bool write_mount_image_link(const char *title_id, const char *image_path);
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bool read_mount_image_chain(
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const char *title_id,
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char paths[MAX_IMAGE_CHAIN_DEPTH][MAX_PATH], size_t *count_out);
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bool write_mount_image_chain(
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const char *title_id,
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const char paths[MAX_IMAGE_CHAIN_DEPTH][MAX_PATH], size_t count);
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// Validate a /user/app/<TITLE_ID> tracker entry and optionally build its path.
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bool resolve_title_app_dir(const struct dirent *entry, char *app_dir,
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size_t app_dir_size);
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// Recover staged mount links and warm image source mappings on startup.
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void cleanup_staged_mount_links(void);
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// Remove duplicated managed mount layers left from previous runs.
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void cleanup_duplicate_title_mounts(void);
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// Remount /system_ex with the expected flags.
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int remount_system_ex(void);
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// Mount a title source into /system_ex/app/<title_id> via nullfs.
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bool mount_title_nullfs(const char *title_id, const char *src_path);
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// Roll back a just-mounted title nullfs layer when publication is aborted.
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bool rollback_title_nullfs_mount(const char *title_id, const char *src_path);
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// Drop runtime layers for a title while preserving its metadata/link files.
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bool unmount_title_runtime_layers(const char *title_id);
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// Same operation without expected EBUSY diagnostics during a bounded retry.
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bool unmount_title_runtime_layers_quiet(const char *title_id);
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// Release every managed title layer while preserving link metadata.
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bool unmount_all_title_runtime_layers(void);
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// Reconcile the title mount stack against the expected source/backport state.
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bool reconcile_title_backport_mount(const char *title_id, const char *src_path,
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const char *expected_backport_path,
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bool *overlay_active_out);
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// Mount a prepared backport overlay on top of an already mounted title.
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// Returns false only when nmount() itself fails.
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bool mount_backport_overlay(const char *mount_point,
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const char *backport_path,
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const char *title_id);
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// Unmount all managed /system_ex/app/<title_id> mount stacks on shutdown.
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bool shutdown_title_mounts(void);
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// Remove stale mount links and optionally restore image-backed mounts.
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void cleanup_mount_links(const char *removed_source_root,
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bool unmount_system_ex_bind);
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// Unmount and remove title links that point under a source root.
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void cleanup_mount_links_for_source_unmount(const char *source_root);
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// Unmount and remove title links backed by USB sources or USB-backed images.
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void cleanup_usb_mount_links_for_suspend(void);
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// Recursively copy a directory tree.
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int copy_dir(const char *src, const char *dst);
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// Copy a single file.
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int copy_file(const char *src, const char *dst);
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#endif
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