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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2018 Samsung Electronics Co., Ltd.
*/
#ifndef __SHARE_CONFIG_MANAGEMENT_H__
#define __SHARE_CONFIG_MANAGEMENT_H__
#include <linux/workqueue.h>
#include <linux/hashtable.h>
#include <linux/path.h>
#include <linux/unicode.h>
struct ksmbd_share_config {
char *name;
char *path;
unsigned int path_sz;
unsigned int flags;
struct list_head veto_list;
struct path vfs_path;
atomic_t refcount;
struct hlist_node hlist;
unsigned short create_mask;
unsigned short directory_mask;
unsigned short force_create_mode;
unsigned short force_directory_mode;
unsigned short force_uid;
unsigned short force_gid;
};
#define KSMBD_SHARE_INVALID_UID ((__u16)-1)
#define KSMBD_SHARE_INVALID_GID ((__u16)-1)
static inline umode_t
share_config_create_mode(struct ksmbd_share_config *share,
umode_t posix_mode)
{
umode_t mode = (posix_mode ?: (umode_t)-1) & share->create_mask;
return mode | share->force_create_mode;
}
static inline umode_t
share_config_directory_mode(struct ksmbd_share_config *share,
umode_t posix_mode)
{
umode_t mode = (posix_mode ?: (umode_t)-1) & share->directory_mask;
return mode | share->force_directory_mode;
}
static inline int test_share_config_flag(struct ksmbd_share_config *share,
int flag)
{
return share->flags & flag;
}
void ksmbd_share_config_del(struct ksmbd_share_config *share);
void __ksmbd_share_config_put(struct ksmbd_share_config *share);
static inline void ksmbd_share_config_put(struct ksmbd_share_config *share)
{
if (!atomic_dec_and_test(&share->refcount))
return;
__ksmbd_share_config_put(share);
}
struct ksmbd_share_config *ksmbd_share_config_get(struct unicode_map *um,
const char *name);
bool ksmbd_share_veto_filename(struct ksmbd_share_config *share,
const char *filename);
#endif /* __SHARE_CONFIG_MANAGEMENT_H__ */
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