[linux-block.git] / include / linux / lockd / xdr.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * linux/include/linux/lockd/xdr.h
 *
 * 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/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];
};

struct svc_rqst;

#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)

#define nlm_drop_reply		cpu_to_be32(30000)

/* Lock info passed via NLM */
struct nlm_lock {
	char *			caller;
	unsigned int		len; 	/* length of "caller" */
	struct nfs_fh		fh;
	struct xdr_netobj	oh;
	u32			svid;
	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 nlm_cookie
{
	unsigned char data[NLM_MAXCOOKIELEN];
	unsigned int len;
};

/*
 * Generic lockd arguments for all but sm_notify
 */
struct nlm_args {
	struct nlm_cookie	cookie;
	struct nlm_lock		lock;
	u32			block;
	u32			reclaim;
	u32			state;
	u32			monitor;
	u32			fsm_access;
	u32			fsm_mode;
};

typedef struct nlm_args nlm_args;

/*
 * Generic lockd result
 */
struct nlm_res {
	struct nlm_cookie	cookie;
	__be32			status;
	struct nlm_lock		lock;
};

/*
 * statd callback when client has rebooted
 */
struct nlm_reboot {
	char			*mon;
	unsigned int		len;
	u32			state;
	struct nsm_private	priv;
};

/*
 * Contents of statd callback when monitored host rebooted
 */
#define NLMSVC_XDRSIZE		sizeof(struct nlm_args)

int	nlmsvc_decode_testargs(struct svc_rqst *, __be32 *);
int	nlmsvc_encode_testres(struct svc_rqst *, __be32 *);
int	nlmsvc_decode_lockargs(struct svc_rqst *, __be32 *);
int	nlmsvc_decode_cancargs(struct svc_rqst *, __be32 *);
int	nlmsvc_decode_unlockargs(struct svc_rqst *, __be32 *);
int	nlmsvc_encode_res(struct svc_rqst *, __be32 *);
int	nlmsvc_decode_res(struct svc_rqst *, __be32 *);
int	nlmsvc_encode_void(struct svc_rqst *, __be32 *);
int	nlmsvc_decode_void(struct svc_rqst *, __be32 *);
int	nlmsvc_decode_shareargs(struct svc_rqst *, __be32 *);
int	nlmsvc_encode_shareres(struct svc_rqst *, __be32 *);
int	nlmsvc_decode_notify(struct svc_rqst *, __be32 *);
int	nlmsvc_decode_reboot(struct svc_rqst *, __be32 *);
/*
int	nlmclt_encode_testargs(struct rpc_rqst *, u32 *, struct nlm_args *);
int	nlmclt_encode_lockargs(struct rpc_rqst *, u32 *, struct nlm_args *);
int	nlmclt_encode_cancargs(struct rpc_rqst *, u32 *, struct nlm_args *);
int	nlmclt_encode_unlockargs(struct rpc_rqst *, u32 *, struct nlm_args *);
 */

#endif /* LOCKD_XDR_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
1da177e4 LT	2	/*
	3	* linux/include/linux/lockd/xdr.h
	4	*
	5	* XDR types for the NLM protocol
	6	*
	7	* Copyright (C) 1996 Olaf Kirch <okir@monad.swb.de>
	8	*/
	9
	10	#ifndef LOCKD_XDR_H
	11	#define LOCKD_XDR_H
	12
	13	#include <linux/fs.h>
	14	#include <linux/nfs.h>
	15	#include <linux/sunrpc/xdr.h>
	16
e6765b83	17	#define SM_MAXSTRLEN 1024
7e44d3be CL	18	#define SM_PRIV_SIZE 16
	19
	20	struct nsm_private {
	21	unsigned char data[SM_PRIV_SIZE];
	22	};
	23
d343fce1 N	24	struct svc_rqst;
d343fce1 N	25
1da177e4 LT	26	#define NLM_MAXCOOKIELEN 32
	27	#define NLM_MAXSTRLEN 1024
	28
77f18f5e HH	29	#define nlm_granted cpu_to_be32(NLM_LCK_GRANTED)
	30	#define nlm_lck_denied cpu_to_be32(NLM_LCK_DENIED)
	31	#define nlm_lck_denied_nolocks cpu_to_be32(NLM_LCK_DENIED_NOLOCKS)
	32	#define nlm_lck_blocked cpu_to_be32(NLM_LCK_BLOCKED)
	33	#define nlm_lck_denied_grace_period cpu_to_be32(NLM_LCK_DENIED_GRACE_PERIOD)
1da177e4	34
77f18f5e	35	#define nlm_drop_reply cpu_to_be32(30000)
d343fce1	36
1da177e4 LT	37	/* Lock info passed via NLM */
	38	struct nlm_lock {
	39	char * caller;
48df020a	40	unsigned int len; /* length of "caller" */
1da177e4 LT	41	struct nfs_fh fh;
1da177e4 LT	42	struct xdr_netobj oh;
7bab377f	43	u32 svid;
1da177e4 LT	44	struct file_lock fl;
	45	};
	46
	47	/*
	48	* NLM cookies. Technically they can be 1K, but Linux only uses 8 bytes.
	49	* FreeBSD uses 16, Apple Mac OS X 10.3 uses 20. Therefore we set it to
	50	* 32 bytes.
	51	*/
	52
	53	struct nlm_cookie
	54	{
	55	unsigned char data[NLM_MAXCOOKIELEN];
	56	unsigned int len;
	57	};
	58
	59	/*
	60	* Generic lockd arguments for all but sm_notify
	61	*/
	62	struct nlm_args {
	63	struct nlm_cookie cookie;
	64	struct nlm_lock lock;
	65	u32 block;
	66	u32 reclaim;
	67	u32 state;
	68	u32 monitor;
	69	u32 fsm_access;
	70	u32 fsm_mode;
	71	};
	72
	73	typedef struct nlm_args nlm_args;
	74
	75	/*
	76	* Generic lockd result
	77	*/
	78	struct nlm_res {
	79	struct nlm_cookie cookie;
e8c5c045	80	__be32 status;
1da177e4 LT	81	struct nlm_lock lock;
	82	};
	83
	84	/*
	85	* statd callback when client has rebooted
	86	*/
	87	struct nlm_reboot {
576df463 CL	88	char *mon;
	89	unsigned int len;
	90	u32 state;
	91	struct nsm_private priv;
1da177e4 LT	92	};
	93
	94	/*
	95	* Contents of statd callback when monitored host rebooted
	96	*/
	97	#define NLMSVC_XDRSIZE sizeof(struct nlm_args)
	98
026fec7e	99	int nlmsvc_decode_testargs(struct svc_rqst , __be32 );
63f8de37	100	int nlmsvc_encode_testres(struct svc_rqst , __be32 );
026fec7e CH	101	int nlmsvc_decode_lockargs(struct svc_rqst , __be32 );
	102	int nlmsvc_decode_cancargs(struct svc_rqst , __be32 );
	103	int nlmsvc_decode_unlockargs(struct svc_rqst , __be32 );
63f8de37	104	int nlmsvc_encode_res(struct svc_rqst , __be32 );
026fec7e	105	int nlmsvc_decode_res(struct svc_rqst , __be32 );
63f8de37	106	int nlmsvc_encode_void(struct svc_rqst , __be32 );
026fec7e CH	107	int nlmsvc_decode_void(struct svc_rqst , __be32 );
026fec7e CH	108	int nlmsvc_decode_shareargs(struct svc_rqst , __be32 );
63f8de37	109	int nlmsvc_encode_shareres(struct svc_rqst , __be32 );
026fec7e CH	110	int nlmsvc_decode_notify(struct svc_rqst , __be32 );
026fec7e CH	111	int nlmsvc_decode_reboot(struct svc_rqst , __be32 );
1da177e4 LT	112	/*
	113	int nlmclt_encode_testargs(struct rpc_rqst , u32 , struct nlm_args *);
	114	int nlmclt_encode_lockargs(struct rpc_rqst , u32 , struct nlm_args *);
	115	int nlmclt_encode_cancargs(struct rpc_rqst , u32 , struct nlm_args *);
	116	int nlmclt_encode_unlockargs(struct rpc_rqst , u32 , struct nlm_args *);
	117	*/
	118
	119	#endif /* LOCKD_XDR_H */