78a6b08618
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.
95 lines
3.7 KiB
C
95 lines
3.7 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*
|
|
* Copyright (c) 1998 Berkeley Software Design, Inc. All rights reserved.
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Berkeley Software Design Inc's name may not be used to endorse or
|
|
* promote products derived from this software without specific prior
|
|
* written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN INC ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN INC BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* from nfs_lock.h,v 2.2 1998/04/28 19:38:41 don Exp
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* lockd uses the nfssvc system call to get the unique kernel services it needs.
|
|
* It passes in a request structure with a version number at the start.
|
|
* This prevents libc from needing to change if the information passed
|
|
* between lockd and the kernel needs to change.
|
|
*
|
|
* If a structure changes, you must bump the version number.
|
|
*/
|
|
|
|
/*
|
|
* The fifo where the kernel writes requests for locks on remote NFS files,
|
|
* and where lockd reads these requests.
|
|
*
|
|
*/
|
|
#define _PATH_NFSLCKDEV "nfslock"
|
|
|
|
/*
|
|
* This structure is used to uniquely identify the process which originated
|
|
* a particular message to lockd. A sequence number is used to differentiate
|
|
* multiple messages from the same process. A process start time is used to
|
|
* detect the unlikely, but possible, event of the recycling of a pid.
|
|
*/
|
|
struct lockd_msg_ident {
|
|
pid_t pid; /* The process ID. */
|
|
struct timeval pid_start; /* Start time of process id */
|
|
int msg_seq; /* Sequence number of message */
|
|
};
|
|
|
|
#define LOCKD_MSG_VERSION 3
|
|
|
|
/*
|
|
* The structure that the kernel hands us for each lock request.
|
|
*/
|
|
typedef struct __lock_msg {
|
|
TAILQ_ENTRY(__lock_msg) lm_link; /* internal linkage */
|
|
int lm_version; /* which version is this */
|
|
struct lockd_msg_ident lm_msg_ident; /* originator of the message */
|
|
struct flock lm_fl; /* The lock request. */
|
|
int lm_wait; /* The F_WAIT flag. */
|
|
int lm_getlk; /* is this a F_GETLK request */
|
|
struct sockaddr_storage lm_addr; /* The address. */
|
|
int lm_nfsv3; /* If NFS version 3. */
|
|
size_t lm_fh_len; /* The file handle length. */
|
|
struct xucred lm_cred; /* user cred for lock req */
|
|
u_int8_t lm_fh[NFSX_V3FHMAX];/* The file handle. */
|
|
} LOCKD_MSG;
|
|
|
|
#define LOCKD_ANS_VERSION 1
|
|
|
|
struct lockd_ans {
|
|
int la_vers;
|
|
struct lockd_msg_ident la_msg_ident; /* originator of the message */
|
|
int la_errno;
|
|
int la_set_getlk_pid; /* use returned pid */
|
|
int la_getlk_pid; /* returned pid for F_GETLK */
|
|
};
|
|
|
|
#ifdef _KERNEL
|
|
int nfs_dolock(struct vop_advlock_args *ap);
|
|
extern vop_advlock_t *nfs_advlock_p;
|
|
extern vop_reclaim_t *nfs_reclaim_p;
|
|
#endif
|