diff options
Diffstat (limited to 'sys/nfs/nfs_lock.h')
| -rw-r--r-- | sys/nfs/nfs_lock.h | 112 |
1 files changed, 0 insertions, 112 deletions
diff --git a/sys/nfs/nfs_lock.h b/sys/nfs/nfs_lock.h deleted file mode 100644 index 64b6c70..0000000 --- a/sys/nfs/nfs_lock.h +++ /dev/null @@ -1,112 +0,0 @@ -/*- - * 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. - */ - -#include <nfs/nfsproto.h> - - -#define LOCKD_REQ_VERSION 1 - -struct lockd_req { - int vers; /* keep in sync with kernel please */ - int op; /* F_GETLK | F_SETLK | F_UNLCK */ - int owner; /* owner of lock, -1 to allocate one */ - int owner_rel_ok; /* release owner if no locks left ? */ - int *owner_ret; /* owner alloc/free result target */ - void *fh; /* NFS file handle */ - size_t fh_len; /* NFS file handle length */ - u_quad_t offset; /* offset of where to start lock */ - u_quad_t len; /* length of range to lock */ - int type; /* F_RDLCK | F_WRLCK | F_UNLCK */ - struct ucred cred; /* user credentials to use for lock */ - struct sockaddr saddr; /* XXX how about non AF_INET ?? */ - int pid; /* pid of lock requester */ -}; - -/* - * The fifo where the kernel writes requests for locks on remote NFS files, - * and where lockd reads these requests. - * - */ -#define _PATH_LCKFIFO "/var/run/lock" - -/* - * 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 1 - -/* - * The structure that the kernel hands us for each lock request. - */ -typedef struct __lock_msg { - 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 lm_addr; /* The address. */ - int lm_nfsv3; /* If NFS version 3. */ - size_t lm_fh_len; /* The file handle length. */ - struct ucred lm_cred; /* user cred for lock req */ - u_int8_t lm_fh[NFS_SMALLFH];/* 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); -int nfslockdans(struct proc *p, struct lockd_ans *ansp); -int nfslockdreq(struct proc *p, struct lockd_req *reqp); -#endif |
