share.h revision b89a8333f5e1f75ec0c269b22524bd2eccb972ba
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_SHARE_H
#define _SYS_SHARE_H
#include <sys/types.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Maximum size of a shrlock owner.
* Must be large enough to handle a netobj.
*/
#define MAX_SHR_OWNER_LEN 1024
/*
* Contents of shrlock owner field for local share requests
*/
struct shr_locowner {
pid_t sl_pid;
int sl_id;
};
struct shrlock {
short s_access;
short s_deny;
int32_t s_sysid; /* 0 if local otherwise passed by lm */
pid_t s_pid; /* 0 if remote otherwise local pid */
int s_own_len; /* if 0 and F_UNSHARE matching sysid */
caddr_t s_owner; /* variable length opaque owner */
};
struct shrlocklist {
struct shrlock *shr;
struct shrlocklist *next;
};
#if defined(_KERNEL)
struct flock64;
extern int add_share(struct vnode *, struct shrlock *);
extern int del_share(struct vnode *, struct shrlock *);
extern void cleanshares(struct vnode *, pid_t);
extern int shr_has_remote_shares(vnode_t *, int32_t);
extern int proc_has_nbmand_share_on_vp(vnode_t *, pid_t);
#endif /* _KERNEL */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_SHARE_H */