/* SPDX-License-Identifier: GPL-2.0 */
/*
 * DOS share management for lockd.
 *
 * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
 */

#ifndef _LOCKD_SHARE_H
#define _LOCKD_SHARE_H

/* Synthetic svid for lockowner lookup during share operations */
#define LOCKD_SHARE_SVID        (~(u32)0)

/*
 * DOS share for a specific file
 */
struct lockd_share {
        struct lockd_share *    s_next;         /* linked list */
        struct nlm_host *       s_host;         /* client host */
        struct nlm_file *       s_file;         /* shared file */
        struct xdr_netobj       s_owner;        /* owner handle */
        u32                     s_access;       /* access mode */
        u32                     s_mode;         /* deny mode */
};

__be32  nlmsvc_share_file(struct nlm_host *host, struct nlm_file *file,
                          struct xdr_netobj *oh, u32 access, u32 mode);
__be32  nlmsvc_unshare_file(struct nlm_host *host, struct nlm_file *file,
                            struct xdr_netobj *oh);
void    nlmsvc_traverse_shares(struct nlm_host *, struct nlm_file *,
                                               nlm_host_match_fn_t);

#endif /* _LOCKD_SHARE_H */