[linux-2.6-block.git] / include / linux / lockd / xdr.h

/*
 * 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>

struct svc_rqst;

#define NLM_MAXCOOKIELEN    	32
#define NLM_MAXSTRLEN		1024

#define	nlm_granted		__constant_htonl(NLM_LCK_GRANTED)
#define	nlm_lck_denied		__constant_htonl(NLM_LCK_DENIED)
#define	nlm_lck_denied_nolocks	__constant_htonl(NLM_LCK_DENIED_NOLOCKS)
#define	nlm_lck_blocked		__constant_htonl(NLM_LCK_BLOCKED)
#define	nlm_lck_denied_grace_period	__constant_htonl(NLM_LCK_DENIED_GRACE_PERIOD)

#define nlm_drop_reply		__constant_htonl(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;
	__be32		addr;
	__be32		vers;
	__be32		proto;
};

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

int	nlmsvc_decode_testargs(struct svc_rqst *, __be32 *, struct nlm_args *);
int	nlmsvc_encode_testres(struct svc_rqst *, __be32 *, struct nlm_res *);
int	nlmsvc_decode_lockargs(struct svc_rqst *, __be32 *, struct nlm_args *);
int	nlmsvc_decode_cancargs(struct svc_rqst *, __be32 *, struct nlm_args *);
int	nlmsvc_decode_unlockargs(struct svc_rqst *, __be32 *, struct nlm_args *);
int	nlmsvc_encode_res(struct svc_rqst *, __be32 *, struct nlm_res *);
int	nlmsvc_decode_res(struct svc_rqst *, __be32 *, struct nlm_res *);
int	nlmsvc_encode_void(struct svc_rqst *, __be32 *, void *);
int	nlmsvc_decode_void(struct svc_rqst *, __be32 *, void *);
int	nlmsvc_decode_shareargs(struct svc_rqst *, __be32 *, struct nlm_args *);
int	nlmsvc_encode_shareres(struct svc_rqst *, __be32 *, struct nlm_res *);
int	nlmsvc_decode_notify(struct svc_rqst *, __be32 *, struct nlm_args *);
int	nlmsvc_decode_reboot(struct svc_rqst *, __be32 *, struct nlm_reboot *);
/*
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
1da177e4 LT	1	/*
	2	* linux/include/linux/lockd/xdr.h
	3	*
	4	* XDR types for the NLM protocol
	5	*
	6	* Copyright (C) 1996 Olaf Kirch <okir@monad.swb.de>
	7	*/
	8
	9	#ifndef LOCKD_XDR_H
	10	#define LOCKD_XDR_H
	11
	12	#include <linux/fs.h>
	13	#include <linux/nfs.h>
	14	#include <linux/sunrpc/xdr.h>
	15
d343fce1 N	16	struct svc_rqst;
d343fce1 N	17
1da177e4 LT	18	#define NLM_MAXCOOKIELEN 32
	19	#define NLM_MAXSTRLEN 1024
	20
	21	#define nlm_granted __constant_htonl(NLM_LCK_GRANTED)
	22	#define nlm_lck_denied __constant_htonl(NLM_LCK_DENIED)
	23	#define nlm_lck_denied_nolocks __constant_htonl(NLM_LCK_DENIED_NOLOCKS)
	24	#define nlm_lck_blocked __constant_htonl(NLM_LCK_BLOCKED)
	25	#define nlm_lck_denied_grace_period __constant_htonl(NLM_LCK_DENIED_GRACE_PERIOD)
	26
d343fce1 N	27	#define nlm_drop_reply __constant_htonl(30000)
d343fce1 N	28
1da177e4 LT	29	/* Lock info passed via NLM */
	30	struct nlm_lock {
	31	char * caller;
48df020a	32	unsigned int len; /* length of "caller" */
1da177e4 LT	33	struct nfs_fh fh;
1da177e4 LT	34	struct xdr_netobj oh;
7bab377f	35	u32 svid;
1da177e4 LT	36	struct file_lock fl;
	37	};
	38
	39	/*
	40	* NLM cookies. Technically they can be 1K, but Linux only uses 8 bytes.
	41	* FreeBSD uses 16, Apple Mac OS X 10.3 uses 20. Therefore we set it to
	42	* 32 bytes.
	43	*/
	44
	45	struct nlm_cookie
	46	{
	47	unsigned char data[NLM_MAXCOOKIELEN];
	48	unsigned int len;
	49	};
	50
	51	/*
	52	* Generic lockd arguments for all but sm_notify
	53	*/
	54	struct nlm_args {
	55	struct nlm_cookie cookie;
	56	struct nlm_lock lock;
	57	u32 block;
	58	u32 reclaim;
	59	u32 state;
	60	u32 monitor;
	61	u32 fsm_access;
	62	u32 fsm_mode;
	63	};
	64
	65	typedef struct nlm_args nlm_args;
	66
	67	/*
	68	* Generic lockd result
	69	*/
	70	struct nlm_res {
	71	struct nlm_cookie cookie;
e8c5c045	72	__be32 status;
1da177e4 LT	73	struct nlm_lock lock;
	74	};
	75
	76	/*
	77	* statd callback when client has rebooted
	78	*/
	79	struct nlm_reboot {
	80	char * mon;
48df020a	81	unsigned int len;
1da177e4	82	u32 state;
e8c5c045 AV	83	__be32 addr;
	84	__be32 vers;
	85	__be32 proto;
1da177e4 LT	86	};
	87
	88	/*
	89	* Contents of statd callback when monitored host rebooted
	90	*/
	91	#define NLMSVC_XDRSIZE sizeof(struct nlm_args)
	92
52921e02 AV	93	int nlmsvc_decode_testargs(struct svc_rqst , __be32 , struct nlm_args *);
	94	int nlmsvc_encode_testres(struct svc_rqst , __be32 , struct nlm_res *);
	95	int nlmsvc_decode_lockargs(struct svc_rqst , __be32 , struct nlm_args *);
	96	int nlmsvc_decode_cancargs(struct svc_rqst , __be32 , struct nlm_args *);
	97	int nlmsvc_decode_unlockargs(struct svc_rqst , __be32 , struct nlm_args *);
	98	int nlmsvc_encode_res(struct svc_rqst , __be32 , struct nlm_res *);
	99	int nlmsvc_decode_res(struct svc_rqst , __be32 , struct nlm_res *);
	100	int nlmsvc_encode_void(struct svc_rqst , __be32 , void *);
	101	int nlmsvc_decode_void(struct svc_rqst , __be32 , void *);
	102	int nlmsvc_decode_shareargs(struct svc_rqst , __be32 , struct nlm_args *);
	103	int nlmsvc_encode_shareres(struct svc_rqst , __be32 , struct nlm_res *);
	104	int nlmsvc_decode_notify(struct svc_rqst , __be32 , struct nlm_args *);
	105	int nlmsvc_decode_reboot(struct svc_rqst , __be32 , struct nlm_reboot *);
1da177e4 LT	106	/*
	107	int nlmclt_encode_testargs(struct rpc_rqst , u32 , struct nlm_args *);
	108	int nlmclt_encode_lockargs(struct rpc_rqst , u32 , struct nlm_args *);
	109	int nlmclt_encode_cancargs(struct rpc_rqst , u32 , struct nlm_args *);
	110	int nlmclt_encode_unlockargs(struct rpc_rqst , u32 , struct nlm_args *);
	111	*/
	112
	113	#endif /* LOCKD_XDR_H */