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fs: Add a sandbox test for the directory uclass

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Create a test which looks for a file and a directory in the U-Boot
source tree.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2025-06-25 07:54:20 -06:00
parent 4ae46c7db4
commit dd58526971
4 changed files with 178 additions and 0 deletions
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112
fs/sandbox/sandboxfs.c
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@@ -5,6 +5,7 @@
* Copyright (c) 2012, Google Inc.
*/
#include <dir.h>
#include <dm.h>
#include <stdio.h>
#include <fs.h>
@@ -13,10 +14,23 @@
#include <os.h>
#include <sandboxfs.h>
/**
* struct sandbox_dir_priv - Private info about sandbox directories
*
* @head: List of directory entries, or NULL if not known
* @ptr: Current position in the list
*/
struct sandbox_dir_priv {
struct os_dirent_node *head, *ptr;
};
/**
* struct sandbox_fs_priv - Private info about the sandbox filesystem
*
* @entries: List of directory entries, or NULL if not scanned yet
*/
struct sandbox_fs_priv {
struct os_dirent_node *entries;
};
int sandbox_fs_set_blk_dev(struct blk_desc *rbdd, struct disk_partition *info)
@@ -177,6 +191,103 @@ static int sandbox_fs_unmount(struct udevice *dev)
return 0;
}
static int sandbox_dir_open(struct udevice *dev, struct fs_dir_stream *strm)
{
struct sandbox_dir_priv *priv = dev_get_priv(dev);
struct dir_uc_priv *dir_uc_priv = dev_get_uclass_priv(dev);
int ret;
ret = os_dirent_ls(dir_uc_priv->path, &priv->head);
if (ret) {
log_err("Failed to open directory: %d\n", ret);
return ret;
}
priv->ptr = priv->head;
return 0;
}
int sandbox_dir_read(struct udevice *dev, struct fs_dir_stream *strm,
struct fs_dirent *dent)
{
struct sandbox_dir_priv *dir_priv = dev_get_priv(dev);
struct os_dirent_node *ptr = dir_priv->ptr;
if (!ptr)
return log_msg_ret("sdr", -ENOENT);
if (ptr->type == OS_FILET_REG)
dent->type = FS_DT_REG;
else if (ptr->type == OS_FILET_DIR)
dent->type = FS_DT_DIR;
else if (ptr->type == OS_FILET_LNK)
dent->type = FS_DT_LNK;
dent->size = ptr->size;
strlcpy(dent->name, ptr->name, FS_DIRENT_NAME_LEN);
dir_priv->ptr = ptr->next;
return 0;
}
static int sandbox_dir_close(struct udevice *dev, struct fs_dir_stream *strm)
{
struct sandbox_dir_priv *dir_priv = dev_get_priv(dev);
log_debug("close\n");
os_dirent_free(dir_priv->head);
dir_priv->ptr = NULL;
log_debug("close done\n");
return 0;
}
static struct dir_ops sandbox_dir_ops = {
.open = sandbox_dir_open,
.read = sandbox_dir_read,
.close = sandbox_dir_close,
};
static const struct udevice_id dir_ids[] = {
{ .compatible = "virtio-fs,directory" },
{ }
};
U_BOOT_DRIVER(sandbox_dir) = {
.name = "sandbox_dir",
.id = UCLASS_DIR,
.of_match = dir_ids,
.ops = &sandbox_dir_ops,
.priv_auto = sizeof(struct sandbox_dir_priv),
.flags = DM_FLAG_ACTIVE_DMA,
};
static int sandbox_fs_lookup_dir(struct udevice *dev, const char *path,
struct udevice **dirp)
{
struct udevice *dir;
int ftype;
int ret;
ftype = os_get_filetype(path ?: "/");
if (ftype < 0)
return ftype;
if (ftype != OS_FILET_DIR)
return log_msg_ret("sld", -ENOTDIR);
log_debug("looking up path '%s'\n", path);
ret = dir_add_probe(dev, DM_DRIVER_GET(sandbox_dir), path, &dir);
if (ret)
return log_msg_ret("slD", ret);
log_debug("added new dir '%s'\n", path);
*dirp = dir;
return 0;
}
static int sandbox_fs_remove(struct udevice *dev)
{
return 0;
@@ -185,6 +296,7 @@ static int sandbox_fs_remove(struct udevice *dev)
static const struct fs_ops sandbox_fs_ops = {
.mount = sandbox_fs_mount,
.unmount = sandbox_fs_unmount,
.lookup_dir = sandbox_fs_lookup_dir,
};
static const struct udevice_id sandbox_fs_ids[] = {