linux/fs/smb/client/dir.c

// SPDX-License-Identifier: LGPL-2.1
/*
 *
 *   vfs operations that deal with dentries
 *
 *   Copyright (C) International Business Machines  Corp., 2002,2009
 *   Author(s): Steve French ([email protected])
 *
 */
#include <linux/fs.h>
#include <linux/stat.h>
#include <linux/slab.h>
#include <linux/namei.h>
#include <linux/mount.h>
#include <linux/file.h>
#include "cifsfs.h"
#include "cifspdu.h"
#include "cifsglob.h"
#include "cifsproto.h"
#include "cifs_debug.h"
#include "cifs_fs_sb.h"
#include "cifs_unicode.h"
#include "fs_context.h"
#include "cifs_ioctl.h"
#include "fscache.h"

static void
renew_parental_timestamps(struct dentry *direntry)
{ … }

char *
cifs_build_path_to_root(struct smb3_fs_context *ctx, struct cifs_sb_info *cifs_sb,
			struct cifs_tcon *tcon, int add_treename)
{ … }

/* Note: caller must free return buffer */
const char *
build_path_from_dentry(struct dentry *direntry, void *page)
{ … }

char *__build_path_from_dentry_optional_prefix(struct dentry *direntry, void *page,
					       const char *tree, int tree_len,
					       bool prefix)
{ … }

char *build_path_from_dentry_optional_prefix(struct dentry *direntry, void *page,
					     bool prefix)
{ … }

/*
 * Don't allow path components longer than the server max.
 * Don't allow the separator character in a path component.
 * The VFS will not allow "/", but "\" is allowed by posix.
 */
static int
check_name(struct dentry *direntry, struct cifs_tcon *tcon)
{ … }


/* Inode operations in similar order to how they appear in Linux file fs.h */

static int cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid,
			  struct tcon_link *tlink, unsigned int oflags, umode_t mode, __u32 *oplock,
			  struct cifs_fid *fid, struct cifs_open_info_data *buf)
{ … }

int
cifs_atomic_open(struct inode *inode, struct dentry *direntry,
		 struct file *file, unsigned oflags, umode_t mode)
{ … }

int cifs_create(struct mnt_idmap *idmap, struct inode *inode,
		struct dentry *direntry, umode_t mode, bool excl)
{ … }

int cifs_mknod(struct mnt_idmap *idmap, struct inode *inode,
	       struct dentry *direntry, umode_t mode, dev_t device_number)
{ … }

struct dentry *
cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
	    unsigned int flags)
{ … }

static int
cifs_d_revalidate(struct dentry *direntry, unsigned int flags)
{ … }

/* static int cifs_d_delete(struct dentry *direntry)
{
	int rc = 0;

	cifs_dbg(FYI, "In cifs d_delete, name = %pd\n", direntry);

	return rc;
}     */

const struct dentry_operations cifs_dentry_ops = …;

static int cifs_ci_hash(const struct dentry *dentry, struct qstr *q)
{ … }

static int cifs_ci_compare(const struct dentry *dentry,
		unsigned int len, const char *str, const struct qstr *name)
{ … }

const struct dentry_operations cifs_ci_dentry_ops = …;