[mirror_ubuntu-artful-kernel.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>

#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		__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;
	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 *, 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
7e44d3be CL	16	#define SM_PRIV_SIZE 16
	17
	18	struct nsm_private {
	19	unsigned char data[SM_PRIV_SIZE];
	20	};
	21
d343fce1 N	22	struct svc_rqst;
d343fce1 N	23
1da177e4 LT	24	#define NLM_MAXCOOKIELEN 32
	25	#define NLM_MAXSTRLEN 1024
	26
	27	#define nlm_granted __constant_htonl(NLM_LCK_GRANTED)
	28	#define nlm_lck_denied __constant_htonl(NLM_LCK_DENIED)
	29	#define nlm_lck_denied_nolocks __constant_htonl(NLM_LCK_DENIED_NOLOCKS)
	30	#define nlm_lck_blocked __constant_htonl(NLM_LCK_BLOCKED)
	31	#define nlm_lck_denied_grace_period __constant_htonl(NLM_LCK_DENIED_GRACE_PERIOD)
	32
d343fce1 N	33	#define nlm_drop_reply __constant_htonl(30000)
d343fce1 N	34
1da177e4 LT	35	/* Lock info passed via NLM */
	36	struct nlm_lock {
	37	char * caller;
48df020a	38	unsigned int len; /* length of "caller" */
1da177e4 LT	39	struct nfs_fh fh;
1da177e4 LT	40	struct xdr_netobj oh;
7bab377f	41	u32 svid;
1da177e4 LT	42	struct file_lock fl;
	43	};
	44
	45	/*
	46	* NLM cookies. Technically they can be 1K, but Linux only uses 8 bytes.
	47	* FreeBSD uses 16, Apple Mac OS X 10.3 uses 20. Therefore we set it to
	48	* 32 bytes.
	49	*/
	50
	51	struct nlm_cookie
	52	{
	53	unsigned char data[NLM_MAXCOOKIELEN];
	54	unsigned int len;
	55	};
	56
	57	/*
	58	* Generic lockd arguments for all but sm_notify
	59	*/
	60	struct nlm_args {
	61	struct nlm_cookie cookie;
	62	struct nlm_lock lock;
	63	u32 block;
	64	u32 reclaim;
	65	u32 state;
	66	u32 monitor;
	67	u32 fsm_access;
	68	u32 fsm_mode;
	69	};
	70
	71	typedef struct nlm_args nlm_args;
	72
	73	/*
	74	* Generic lockd result
	75	*/
	76	struct nlm_res {
	77	struct nlm_cookie cookie;
e8c5c045	78	__be32 status;
1da177e4 LT	79	struct nlm_lock lock;
	80	};
	81
	82	/*
	83	* statd callback when client has rebooted
	84	*/
	85	struct nlm_reboot {
576df463 CL	86	char *mon;
	87	unsigned int len;
	88	u32 state;
	89	struct nsm_private priv;
1da177e4 LT	90	};
	91
	92	/*
	93	* Contents of statd callback when monitored host rebooted
	94	*/
	95	#define NLMSVC_XDRSIZE sizeof(struct nlm_args)
	96
52921e02 AV	97	int nlmsvc_decode_testargs(struct svc_rqst , __be32 , struct nlm_args *);
	98	int nlmsvc_encode_testres(struct svc_rqst , __be32 , struct nlm_res *);
	99	int nlmsvc_decode_lockargs(struct svc_rqst , __be32 , struct nlm_args *);
	100	int nlmsvc_decode_cancargs(struct svc_rqst , __be32 , struct nlm_args *);
	101	int nlmsvc_decode_unlockargs(struct svc_rqst , __be32 , struct nlm_args *);
	102	int nlmsvc_encode_res(struct svc_rqst , __be32 , struct nlm_res *);
	103	int nlmsvc_decode_res(struct svc_rqst , __be32 , struct nlm_res *);
	104	int nlmsvc_encode_void(struct svc_rqst , __be32 , void *);
	105	int nlmsvc_decode_void(struct svc_rqst , __be32 , void *);
	106	int nlmsvc_decode_shareargs(struct svc_rqst , __be32 , struct nlm_args *);
	107	int nlmsvc_encode_shareres(struct svc_rqst , __be32 , struct nlm_res *);
	108	int nlmsvc_decode_notify(struct svc_rqst , __be32 , struct nlm_args *);
	109	int nlmsvc_decode_reboot(struct svc_rqst , __be32 , struct nlm_reboot *);
1da177e4 LT	110	/*
	111	int nlmclt_encode_testargs(struct rpc_rqst , u32 , struct nlm_args *);
	112	int nlmclt_encode_lockargs(struct rpc_rqst , u32 , struct nlm_args *);
	113	int nlmclt_encode_cancargs(struct rpc_rqst , u32 , struct nlm_args *);
	114	int nlmclt_encode_unlockargs(struct rpc_rqst , u32 , struct nlm_args *);
	115	*/
	116
	117	#endif /* LOCKD_XDR_H */