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/* SPDX-License-Identifier: GPL-2.0 */
/*
* XDR types for the NLM protocol
*
* Copyright (C) 1996 Olaf Kirch <okir@monad.swb.de>
*/
#ifndef _LOCKD_XDR_H
#define _LOCKD_XDR_H
#include <linux/fs.h>
#include <linux/filelock.h>
#include <linux/nfs.h>
#include <linux/sunrpc/xdr.h>
#define SM_MAXSTRLEN 1024
#define SM_PRIV_SIZE 16
struct nsm_private {
unsigned char data[SM_PRIV_SIZE];
};
#define NLM_MAXCOOKIELEN 32
#define NLM_MAXSTRLEN 1024
#define nlm_granted cpu_to_be32(NLM_LCK_GRANTED)
#define nlm_lck_denied cpu_to_be32(NLM_LCK_DENIED)
#define nlm_lck_denied_nolocks cpu_to_be32(NLM_LCK_DENIED_NOLOCKS)
#define nlm_lck_blocked cpu_to_be32(NLM_LCK_BLOCKED)
#define nlm_lck_denied_grace_period cpu_to_be32(NLM_LCK_DENIED_GRACE_PERIOD)
/* Lock info passed via NLM */
struct lockd_lock {
char * caller;
unsigned int len; /* length of "caller" */
struct nfs_fh fh;
struct xdr_netobj oh;
u32 svid;
u64 lock_start;
u64 lock_len;
struct file_lock fl;
};
/*
* NLM cookies. Technically they can be 1K, but Linux only uses 8 bytes.
* FreeBSD uses 16, Apple Mac OS X 10.3 uses 20. Therefore we set it to
* 32 bytes.
*/
struct lockd_cookie {
unsigned char data[NLM_MAXCOOKIELEN];
unsigned int len;
};
/*
* Generic lockd arguments for all but sm_notify
*/
struct lockd_args {
struct lockd_cookie cookie;
struct lockd_lock lock;
u32 block;
u32 reclaim;
u32 state;
};
/*
* Generic lockd result
*/
struct lockd_res {
struct lockd_cookie cookie;
__be32 status;
struct lockd_lock lock;
};
/*
* statd callback when client has rebooted
*/
struct lockd_reboot {
char *mon;
unsigned int len;
u32 state;
struct nsm_private priv;
};
#endif /* _LOCKD_XDR_H */
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