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CE add mkdir command, implement create_dir () syscall
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Kamil Kowalczyk
2026-03-05 00:38:58 +01:00
parent 0897f08212
commit 35d5bed433
12 changed files with 100 additions and 0 deletions
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7
kernel/fs/fatfs.c
View File

@@ -259,3 +259,10 @@ int fatfs_create_file (struct vfs_volume* volume, const char* path) {
fl_fclose (fatfs_ctx, file);
return ST_OK;
}
int fatfs_create_dir (struct vfs_volume* volume, const char* path) {
struct fatfs_ctx* fatfs_ctx = volume->udata;
int r = fl_createdirectory (fatfs_ctx, path);
return r == 0 ? ST_OK : ST_CREATE_DIR_ERROR;
}

2
kernel/fs/fatfs.h
View File

@@ -29,4 +29,6 @@ int fatfs_read_dir_entry (struct vfs_volume* volume, const char* path, struct di
int fatfs_create_file (struct vfs_volume* volume, const char* path);
int fatfs_create_dir (struct vfs_volume* volume, const char* path);
#endif // _KERNEL_FS_FATFS_H

5
kernel/fs/tarfs.c
View File

@@ -208,3 +208,8 @@ int tarfs_create_file (struct vfs_volume* volume, const char* path) {
(void)volume, (void)path;
return ST_OK;
}
int tarfs_create_dir (struct vfs_volume* volume, const char* path) {
(void)volume, (void)path;
return ST_OK;
}

2
kernel/fs/tarfs.h
View File

@@ -51,4 +51,6 @@ int tarfs_read_dir_entry (struct vfs_volume* volume, const char* path, struct di
int tarfs_create_file (struct vfs_volume* volume, const char* path);
int tarfs_create_dir (struct vfs_volume* volume, const char* path);
#endif // _KERNEL_FS_TARFS_H

21
kernel/fs/vfs.c
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@@ -61,6 +61,7 @@ int vfs_create_volume (const char* key, int fs_type, struct device* back_device,
volume->driver_ops.write_file = &tarfs_write_file;
volume->driver_ops.read_dir_entry = &tarfs_read_dir_entry;
volume->driver_ops.create_file = &tarfs_create_file;
volume->driver_ops.create_dir = &tarfs_create_dir;
break;
case VFS_FAT16:
volume->driver_ops.mount = &fatfs_mount;
@@ -70,6 +71,7 @@ int vfs_create_volume (const char* key, int fs_type, struct device* back_device,
volume->driver_ops.write_file = &fatfs_write_file;
volume->driver_ops.read_dir_entry = &fatfs_read_dir_entry;
volume->driver_ops.create_file = &fatfs_create_file;
volume->driver_ops.create_dir = &fatfs_create_dir;
break;
case VFS_FAT32:
volume->driver_ops.mount = &fatfs_mount;
@@ -79,6 +81,7 @@ int vfs_create_volume (const char* key, int fs_type, struct device* back_device,
volume->driver_ops.write_file = &fatfs_write_file;
volume->driver_ops.read_dir_entry = &fatfs_read_dir_entry;
volume->driver_ops.create_file = &fatfs_create_file;
volume->driver_ops.create_dir = &fatfs_create_dir;
break;
default:
free (volume);
@@ -279,6 +282,24 @@ int vfs_read_dir_entry (struct proc* proc, const char* volume_name, const char*
return volume->driver_ops.read_dir_entry (volume, path, entry, entry_num);
}
int vfs_create_dir (struct proc* proc, const char* volume_name, const char* path) {
struct vfs_volume* volume = vfs_find_volume (volume_name);
if (volume == NULL)
return -ST_NOT_FOUND;
spin_lock (&volume->lock);
if (volume->locked && volume->owner != proc) {
spin_unlock (&volume->lock);
return -ST_PERMISSION_ERROR;
}
spin_unlock (&volume->lock);
return volume->driver_ops.create_dir (volume, path);
}
void vfs_init (void) {
memset (&volume_table, 0, sizeof (volume_table));

4
kernel/fs/vfs.h
View File

@@ -48,6 +48,8 @@ struct vfs_volume {
size_t entry_num);
int (*create_file) (struct vfs_volume* volume, const char* path);
int (*create_dir) (struct vfs_volume* volume, const char* path);
} driver_ops;
struct device* back_device;
void* udata
@@ -79,6 +81,8 @@ int vfs_read_dir_entry (struct proc* proc, const char* volume, const char* path,
int vfs_create_file (struct proc* proc, const char* volume_name, const char* path);
int vfs_create_dir (struct proc* proc, const char* volume_name, const char* path);
void vfs_init (void);
void vfs_translate (size_t fs_block, size_t fs_block_count, size_t fs_block_size,