[linux-2.6-block.git] / include / linux / nfsd / xdr4.h

/*
 *  include/linux/nfsd/xdr4.h
 *
 *  Server-side types for NFSv4.
 *
 *  Copyright (c) 2002 The Regents of the University of Michigan.
 *  All rights reserved.
 *
 *  Kendrick Smith <kmsmith@umich.edu>
 *  Andy Adamson   <andros@umich.edu>
 *
 *  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. Neither the name of the University nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED ``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 THE REGENTS OR CONTRIBUTORS 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.
 *
 */

#ifndef _LINUX_NFSD_XDR4_H
#define _LINUX_NFSD_XDR4_H

#include <linux/nfs4.h>

#define NFSD4_MAX_TAGLEN	128
#define XDR_LEN(n)                     (((n) + 3) & ~3)

struct nfsd4_compound_state {
	struct svc_fh		current_fh;
	struct svc_fh		save_fh;
	struct nfs4_stateowner	*replay_owner;
	/* For sessions DRC */
	struct nfsd4_session	*session;
	struct nfsd4_slot	*slot;
	__be32			*statp;
	size_t			iovlen;
	u32			status;
};

struct nfsd4_change_info {
	u32		atomic;
	u32		before_ctime_sec;
	u32		before_ctime_nsec;
	u32		after_ctime_sec;
	u32		after_ctime_nsec;
};

struct nfsd4_access {
	u32		ac_req_access;      /* request */
	u32		ac_supported;       /* response */
	u32		ac_resp_access;     /* response */
};

struct nfsd4_close {
	u32		cl_seqid;           /* request */
	stateid_t	cl_stateid;         /* request+response */
	struct nfs4_stateowner * cl_stateowner;	/* response */
};

struct nfsd4_commit {
	u64		co_offset;          /* request */
	u32		co_count;           /* request */
	nfs4_verifier	co_verf;            /* response */
};

struct nfsd4_create {
	u32		cr_namelen;         /* request */
	char *		cr_name;            /* request */
	u32		cr_type;            /* request */
	union {                             /* request */
		struct {
			u32 namelen;
			char *name;
		} link;   /* NF4LNK */
		struct {
			u32 specdata1;
			u32 specdata2;
		} dev;    /* NF4BLK, NF4CHR */
	} u;
	u32		cr_bmval[2];        /* request */
	struct iattr	cr_iattr;           /* request */
	struct nfsd4_change_info  cr_cinfo; /* response */
	struct nfs4_acl *cr_acl;
};
#define cr_linklen	u.link.namelen
#define cr_linkname	u.link.name
#define cr_specdata1	u.dev.specdata1
#define cr_specdata2	u.dev.specdata2

struct nfsd4_delegreturn {
	stateid_t	dr_stateid;
};

struct nfsd4_getattr {
	u32		ga_bmval[2];        /* request */
	struct svc_fh	*ga_fhp;            /* response */
};

struct nfsd4_link {
	u32		li_namelen;         /* request */
	char *		li_name;            /* request */
	struct nfsd4_change_info  li_cinfo; /* response */
};

struct nfsd4_lock_denied {
	clientid_t	ld_clientid;
	struct nfs4_stateowner   *ld_sop;
	u64             ld_start;
	u64             ld_length;
	u32             ld_type;
};

struct nfsd4_lock {
	/* request */
	u32             lk_type;
	u32             lk_reclaim;         /* boolean */
	u64             lk_offset;
	u64             lk_length;
	u32             lk_is_new;
	union {
		struct {
			u32             open_seqid;
			stateid_t       open_stateid;
			u32             lock_seqid;
			clientid_t      clientid;
			struct xdr_netobj owner;
		} new;
		struct {
			stateid_t       lock_stateid;
			u32             lock_seqid;
		} old;
	} v;

	/* response */
	union {
		struct {
			stateid_t               stateid;
		} ok;
		struct nfsd4_lock_denied        denied;
	} u;
	/* The lk_replay_owner is the open owner in the open_to_lock_owner
	 * case and the lock owner otherwise: */
	struct nfs4_stateowner *lk_replay_owner;
};
#define lk_new_open_seqid       v.new.open_seqid
#define lk_new_open_stateid     v.new.open_stateid
#define lk_new_lock_seqid       v.new.lock_seqid
#define lk_new_clientid         v.new.clientid
#define lk_new_owner            v.new.owner
#define lk_old_lock_stateid     v.old.lock_stateid
#define lk_old_lock_seqid       v.old.lock_seqid

#define lk_rflags       u.ok.rflags
#define lk_resp_stateid u.ok.stateid
#define lk_denied       u.denied


struct nfsd4_lockt {
	u32				lt_type;
	clientid_t			lt_clientid;
	struct xdr_netobj		lt_owner;
	u64				lt_offset;
	u64				lt_length;
	struct nfs4_stateowner * 	lt_stateowner;
	struct nfsd4_lock_denied  	lt_denied;
};

 
struct nfsd4_locku {
	u32             lu_type;
	u32             lu_seqid;
	stateid_t       lu_stateid;
	u64             lu_offset;
	u64             lu_length;
	struct nfs4_stateowner  *lu_stateowner;
};


struct nfsd4_lookup {
	u32		lo_len;             /* request */
	char *		lo_name;            /* request */
};

struct nfsd4_putfh {
	u32		pf_fhlen;           /* request */
	char		*pf_fhval;          /* request */
};

struct nfsd4_open {
	u32		op_claim_type;      /* request */
	struct xdr_netobj op_fname;	    /* request - everything but CLAIM_PREV */
	u32		op_delegate_type;   /* request - CLAIM_PREV only */
	stateid_t       op_delegate_stateid; /* request - response */
	u32		op_create;     	    /* request */
	u32		op_createmode;      /* request */
	u32		op_bmval[2];        /* request */
	union {                             /* request */
		struct iattr	iattr;                      /* UNCHECKED4,GUARDED4 */
		nfs4_verifier	verf;                                /* EXCLUSIVE4 */
	} u;
	clientid_t	op_clientid;        /* request */
	struct xdr_netobj op_owner;           /* request */
	u32		op_seqid;           /* request */
	u32		op_share_access;    /* request */
	u32		op_share_deny;      /* request */
	stateid_t	op_stateid;         /* response */
	u32		op_recall;          /* recall */
	struct nfsd4_change_info  op_cinfo; /* response */
	u32		op_rflags;          /* response */
	int		op_truncate;        /* used during processing */
	struct nfs4_stateowner *op_stateowner; /* used during processing */
	struct nfs4_acl *op_acl;
};
#define op_iattr	u.iattr
#define op_verf		u.verf

struct nfsd4_open_confirm {
	stateid_t	oc_req_stateid		/* request */;
	u32		oc_seqid    		/* request */;
	stateid_t	oc_resp_stateid		/* response */;
	struct nfs4_stateowner * oc_stateowner;	/* response */
};

struct nfsd4_open_downgrade {
	stateid_t       od_stateid;
	u32             od_seqid;
	u32             od_share_access;
	u32             od_share_deny;
	struct nfs4_stateowner *od_stateowner;
};


struct nfsd4_read {
	stateid_t	rd_stateid;         /* request */
	u64		rd_offset;          /* request */
	u32		rd_length;          /* request */
	int		rd_vlen;
	struct file     *rd_filp;
	
	struct svc_rqst *rd_rqstp;          /* response */
	struct svc_fh * rd_fhp;             /* response */
};

struct nfsd4_readdir {
	u64		rd_cookie;          /* request */
	nfs4_verifier	rd_verf;            /* request */
	u32		rd_dircount;        /* request */
	u32		rd_maxcount;        /* request */
	u32		rd_bmval[2];        /* request */
	struct svc_rqst *rd_rqstp;          /* response */
	struct svc_fh * rd_fhp;             /* response */

	struct readdir_cd	common;
	__be32 *		buffer;
	int			buflen;
	__be32 *		offset;
};

struct nfsd4_release_lockowner {
	clientid_t        rl_clientid;
	struct xdr_netobj rl_owner;
};
struct nfsd4_readlink {
	struct svc_rqst *rl_rqstp;          /* request */
	struct svc_fh *	rl_fhp;             /* request */
};

struct nfsd4_remove {
	u32		rm_namelen;         /* request */
	char *		rm_name;            /* request */
	struct nfsd4_change_info  rm_cinfo; /* response */
};

struct nfsd4_rename {
	u32		rn_snamelen;        /* request */
	char *		rn_sname;           /* request */
	u32		rn_tnamelen;        /* request */
	char *		rn_tname;           /* request */
	struct nfsd4_change_info  rn_sinfo; /* response */
	struct nfsd4_change_info  rn_tinfo; /* response */
};

struct nfsd4_secinfo {
	u32 si_namelen;					/* request */
	char *si_name;					/* request */
	struct svc_export *si_exp;			/* response */
};

struct nfsd4_setattr {
	stateid_t	sa_stateid;         /* request */
	u32		sa_bmval[2];        /* request */
	struct iattr	sa_iattr;           /* request */
	struct nfs4_acl *sa_acl;
};

struct nfsd4_setclientid {
	nfs4_verifier	se_verf;            /* request */
	u32		se_namelen;         /* request */
	char *		se_name;            /* request */
	u32		se_callback_prog;   /* request */
	u32		se_callback_netid_len;  /* request */
	char *		se_callback_netid_val;  /* request */
	u32		se_callback_addr_len;   /* request */
	char *		se_callback_addr_val;   /* request */
	u32		se_callback_ident;  /* request */
	clientid_t	se_clientid;        /* response */
	nfs4_verifier	se_confirm;         /* response */
};

struct nfsd4_setclientid_confirm {
	clientid_t	sc_clientid;
	nfs4_verifier	sc_confirm;
};

/* also used for NVERIFY */
struct nfsd4_verify {
	u32		ve_bmval[2];        /* request */
	u32		ve_attrlen;         /* request */
	char *		ve_attrval;         /* request */
};

struct nfsd4_write {
	stateid_t	wr_stateid;         /* request */
	u64		wr_offset;          /* request */
	u32		wr_stable_how;      /* request */
	u32		wr_buflen;          /* request */
	int		wr_vlen;

	u32		wr_bytes_written;   /* response */
	u32		wr_how_written;     /* response */
	nfs4_verifier	wr_verifier;        /* response */
};

struct nfsd4_exchange_id {
	nfs4_verifier	verifier;
	struct xdr_netobj clname;
	u32		flags;
	clientid_t	clientid;
	u32		seqid;
	int		spa_how;
};

struct nfsd4_create_session {
	int	foo;	/* stub */
};

struct nfsd4_sequence {
	struct nfs4_sessionid	sessionid;		/* request/response */
	u32			seqid;			/* request/response */
	u32			slotid;			/* request/response */
	u32			maxslots;		/* request/response */
	u32			cachethis;		/* request */
#if 0
	u32			target_maxslots;	/* response */
	u32			status_flags;		/* response */
#endif /* not yet */
};

struct nfsd4_destroy_session {
	int	foo;	/* stub */
};

struct nfsd4_op {
	int					opnum;
	__be32					status;
	union {
		struct nfsd4_access		access;
		struct nfsd4_close		close;
		struct nfsd4_commit		commit;
		struct nfsd4_create		create;
		struct nfsd4_delegreturn	delegreturn;
		struct nfsd4_getattr		getattr;
		struct svc_fh *			getfh;
		struct nfsd4_link		link;
		struct nfsd4_lock		lock;
		struct nfsd4_lockt		lockt;
		struct nfsd4_locku		locku;
		struct nfsd4_lookup		lookup;
		struct nfsd4_verify		nverify;
		struct nfsd4_open		open;
		struct nfsd4_open_confirm	open_confirm;
		struct nfsd4_open_downgrade	open_downgrade;
		struct nfsd4_putfh		putfh;
		struct nfsd4_read		read;
		struct nfsd4_readdir		readdir;
		struct nfsd4_readlink		readlink;
		struct nfsd4_remove		remove;
		struct nfsd4_rename		rename;
		clientid_t			renew;
		struct nfsd4_secinfo		secinfo;
		struct nfsd4_setattr		setattr;
		struct nfsd4_setclientid	setclientid;
		struct nfsd4_setclientid_confirm setclientid_confirm;
		struct nfsd4_verify		verify;
		struct nfsd4_write		write;
		struct nfsd4_release_lockowner	release_lockowner;

		/* NFSv4.1 */
		struct nfsd4_exchange_id	exchange_id;
		struct nfsd4_create_session	create_session;
		struct nfsd4_destroy_session	destroy_session;
		struct nfsd4_sequence		sequence;
	} u;
	struct nfs4_replay *			replay;
};

struct nfsd4_compoundargs {
	/* scratch variables for XDR decode */
	__be32 *			p;
	__be32 *			end;
	struct page **			pagelist;
	int				pagelen;
	__be32				tmp[8];
	__be32 *			tmpp;
	struct tmpbuf {
		struct tmpbuf *next;
		void (*release)(const void *);
		void *buf;
	}				*to_free;

	struct svc_rqst			*rqstp;

	u32				taglen;
	char *				tag;
	u32				minorversion;
	u32				opcnt;
	struct nfsd4_op			*ops;
	struct nfsd4_op			iops[8];
};

struct nfsd4_compoundres {
	/* scratch variables for XDR encode */
	__be32 *			p;
	__be32 *			end;
	struct xdr_buf *		xbuf;
	struct svc_rqst *		rqstp;

	u32				taglen;
	char *				tag;
	u32				opcnt;
	__be32 *			tagp; /* tag, opcount encode location */
	struct nfsd4_compound_state	cstate;
};

#define NFS4_SVC_XDRSIZE		sizeof(struct nfsd4_compoundargs)

static inline void
set_change_info(struct nfsd4_change_info *cinfo, struct svc_fh *fhp)
{
	BUG_ON(!fhp->fh_pre_saved || !fhp->fh_post_saved);
	cinfo->atomic = 1;
	cinfo->before_ctime_sec = fhp->fh_pre_ctime.tv_sec;
	cinfo->before_ctime_nsec = fhp->fh_pre_ctime.tv_nsec;
	cinfo->after_ctime_sec = fhp->fh_post_attr.ctime.tv_sec;
	cinfo->after_ctime_nsec = fhp->fh_post_attr.ctime.tv_nsec;
}

int nfs4svc_encode_voidres(struct svc_rqst *, __be32 *, void *);
int nfs4svc_decode_compoundargs(struct svc_rqst *, __be32 *,
		struct nfsd4_compoundargs *);
int nfs4svc_encode_compoundres(struct svc_rqst *, __be32 *,
		struct nfsd4_compoundres *);
void nfsd4_encode_operation(struct nfsd4_compoundres *, struct nfsd4_op *);
void nfsd4_encode_replay(struct nfsd4_compoundres *resp, struct nfsd4_op *op);
__be32 nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
		       struct dentry *dentry, __be32 *buffer, int *countp,
		       u32 *bmval, struct svc_rqst *, int ignore_crossmnt);
extern __be32 nfsd4_setclientid(struct svc_rqst *rqstp,
		struct nfsd4_compound_state *,
		struct nfsd4_setclientid *setclid);
extern __be32 nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
		struct nfsd4_compound_state *,
		struct nfsd4_setclientid_confirm *setclientid_confirm);
extern void nfsd4_store_cache_entry(struct nfsd4_compoundres *resp);
extern __be32 nfsd4_replay_cache_entry(struct nfsd4_compoundres *resp);
extern __be32 nfsd4_exchange_id(struct svc_rqst *rqstp,
		struct nfsd4_compound_state *,
struct nfsd4_exchange_id *);
		extern __be32 nfsd4_create_session(struct svc_rqst *,
		struct nfsd4_compound_state *,
		struct nfsd4_create_session *);
extern __be32 nfsd4_sequence(struct svc_rqst *,
		struct nfsd4_compound_state *,
		struct nfsd4_sequence *);
extern __be32 nfsd4_destroy_session(struct svc_rqst *,
		struct nfsd4_compound_state *,
		struct nfsd4_destroy_session *);
extern __be32 nfsd4_process_open1(struct nfsd4_open *open);
extern __be32 nfsd4_process_open2(struct svc_rqst *rqstp,
		struct svc_fh *current_fh, struct nfsd4_open *open);
extern __be32 nfsd4_open_confirm(struct svc_rqst *rqstp,
		struct nfsd4_compound_state *, struct nfsd4_open_confirm *oc);
extern __be32 nfsd4_close(struct svc_rqst *rqstp,
		struct nfsd4_compound_state *,
		struct nfsd4_close *close);
extern __be32 nfsd4_open_downgrade(struct svc_rqst *rqstp,
		struct nfsd4_compound_state *,
		struct nfsd4_open_downgrade *od);
extern __be32 nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
		struct nfsd4_lock *lock);
extern __be32 nfsd4_lockt(struct svc_rqst *rqstp,
		struct nfsd4_compound_state *,
		struct nfsd4_lockt *lockt);
extern __be32 nfsd4_locku(struct svc_rqst *rqstp,
		struct nfsd4_compound_state *,
		struct nfsd4_locku *locku);
extern __be32
nfsd4_release_lockowner(struct svc_rqst *rqstp,
		struct nfsd4_compound_state *,
		struct nfsd4_release_lockowner *rlockowner);
extern void nfsd4_release_compoundargs(struct nfsd4_compoundargs *);
extern __be32 nfsd4_delegreturn(struct svc_rqst *rqstp,
		struct nfsd4_compound_state *, struct nfsd4_delegreturn *dr);
extern __be32 nfsd4_renew(struct svc_rqst *rqstp,
			  struct nfsd4_compound_state *, clientid_t *clid);
#endif

/*
 * Local variables:
 *  c-basic-offset: 8
 * End:
 */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* include/linux/nfsd/xdr4.h
	3	*
	4	* Server-side types for NFSv4.
	5	*
	6	* Copyright (c) 2002 The Regents of the University of Michigan.
	7	* All rights reserved.
	8	*
	9	* Kendrick Smith <kmsmith@umich.edu>
	10	* Andy Adamson <andros@umich.edu>
	11	*
	12	* Redistribution and use in source and binary forms, with or without
	13	* modification, are permitted provided that the following conditions
	14	* are met:
	15	*
	16	* 1. Redistributions of source code must retain the above copyright
	17	* notice, this list of conditions and the following disclaimer.
	18	* 2. Redistributions in binary form must reproduce the above copyright
	19	* notice, this list of conditions and the following disclaimer in the
	20	* documentation and/or other materials provided with the distribution.
	21	* 3. Neither the name of the University nor the names of its
	22	* contributors may be used to endorse or promote products derived
	23	* from this software without specific prior written permission.
	24	*
	25	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
	26	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
	27	* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
	28	* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	29	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
	30	* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	31	* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
	32	* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
	33	* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
	34	* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
	35	* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	36	*
	37	*/
	38
	39	#ifndef _LINUX_NFSD_XDR4_H
	40	#define _LINUX_NFSD_XDR4_H
	41
	42	#include <linux/nfs4.h>
	43
	44	#define NFSD4_MAX_TAGLEN 128
	45	#define XDR_LEN(n) (((n) + 3) & ~3)
	46
ca364317	47	struct nfsd4_compound_state {
e354d571 AA	48	struct svc_fh current_fh;
	49	struct svc_fh save_fh;
	50	struct nfs4_stateowner *replay_owner;
b85d4c01 BH	51	/* For sessions DRC */
	52	struct nfsd4_session *session;
	53	struct nfsd4_slot *slot;
074fe897	54	__be32 *statp;
da3846a2	55	size_t iovlen;
074fe897	56	u32 status;
ca364317 BF	57	};
ca364317 BF	58
1da177e4 LT	59	struct nfsd4_change_info {
	60	u32 atomic;
	61	u32 before_ctime_sec;
	62	u32 before_ctime_nsec;
	63	u32 after_ctime_sec;
	64	u32 after_ctime_nsec;
	65	};
	66
	67	struct nfsd4_access {
	68	u32 ac_req_access; /* request */
	69	u32 ac_supported; /* response */
	70	u32 ac_resp_access; /* response */
	71	};
	72
	73	struct nfsd4_close {
	74	u32 cl_seqid; /* request */
	75	stateid_t cl_stateid; /* request+response */
	76	struct nfs4_stateowner * cl_stateowner; /* response */
	77	};
	78
	79	struct nfsd4_commit {
	80	u64 co_offset; /* request */
	81	u32 co_count; /* request */
	82	nfs4_verifier co_verf; /* response */
	83	};
	84
	85	struct nfsd4_create {
	86	u32 cr_namelen; /* request */
	87	char * cr_name; /* request */
	88	u32 cr_type; /* request */
	89	union { /* request */
	90	struct {
	91	u32 namelen;
	92	char *name;
	93	} link; /* NF4LNK */
	94	struct {
	95	u32 specdata1;
	96	u32 specdata2;
	97	} dev; /* NF4BLK, NF4CHR */
	98	} u;
	99	u32 cr_bmval[2]; /* request */
	100	struct iattr cr_iattr; /* request */
	101	struct nfsd4_change_info cr_cinfo; /* response */
	102	struct nfs4_acl *cr_acl;
	103	};
	104	#define cr_linklen u.link.namelen
	105	#define cr_linkname u.link.name
	106	#define cr_specdata1 u.dev.specdata1
	107	#define cr_specdata2 u.dev.specdata2
	108
	109	struct nfsd4_delegreturn {
	110	stateid_t dr_stateid;
	111	};
	112
	113	struct nfsd4_getattr {
	114	u32 ga_bmval[2]; /* request */
	115	struct svc_fh ga_fhp; / response */
	116	};
	117
	118	struct nfsd4_link {
	119	u32 li_namelen; /* request */
	120	char * li_name; /* request */
	121	struct nfsd4_change_info li_cinfo; /* response */
	122	};
123
124	struct nfsd4_lock_denied {
125	clientid_t ld_clientid;
126	struct nfs4_stateowner *ld_sop;
127	u64 ld_start;
128	u64 ld_length;
129	u32 ld_type;
130	};
131
132	struct nfsd4_lock {
133	/* request */
134	u32 lk_type;
135	u32 lk_reclaim; /* boolean */
136	u64 lk_offset;
137	u64 lk_length;
138	u32 lk_is_new;
139	union {
140	struct {
141	u32 open_seqid;
142	stateid_t open_stateid;
143	u32 lock_seqid;
144	clientid_t clientid;
145	struct xdr_netobj owner;
146	} new;
147	struct {
148	stateid_t lock_stateid;
149	u32 lock_seqid;
150	} old;
151	} v;
152
153	/* response */
154	union {
155	struct {
156	stateid_t stateid;
157	} ok;
158	struct nfsd4_lock_denied denied;
159	} u;
3a65588a BF	160	/* The lk_replay_owner is the open owner in the open_to_lock_owner
	161	* case and the lock owner otherwise: */
	162	struct nfs4_stateowner *lk_replay_owner;
1da177e4 LT	163	};
	164	#define lk_new_open_seqid v.new.open_seqid
	165	#define lk_new_open_stateid v.new.open_stateid
	166	#define lk_new_lock_seqid v.new.lock_seqid
	167	#define lk_new_clientid v.new.clientid
	168	#define lk_new_owner v.new.owner
	169	#define lk_old_lock_stateid v.old.lock_stateid
	170	#define lk_old_lock_seqid v.old.lock_seqid
	171
	172	#define lk_rflags u.ok.rflags
	173	#define lk_resp_stateid u.ok.stateid
	174	#define lk_denied u.denied
	175
	176
	177	struct nfsd4_lockt {
	178	u32 lt_type;
	179	clientid_t lt_clientid;
	180	struct xdr_netobj lt_owner;
	181	u64 lt_offset;
	182	u64 lt_length;
	183	struct nfs4_stateowner * lt_stateowner;
	184	struct nfsd4_lock_denied lt_denied;
	185	};
	186
	187
	188	struct nfsd4_locku {
	189	u32 lu_type;
	190	u32 lu_seqid;
	191	stateid_t lu_stateid;
	192	u64 lu_offset;
	193	u64 lu_length;
	194	struct nfs4_stateowner *lu_stateowner;
	195	};
	196
	197
	198	struct nfsd4_lookup {
	199	u32 lo_len; /* request */
	200	char * lo_name; /* request */
	201	};
	202
	203	struct nfsd4_putfh {
	204	u32 pf_fhlen; /* request */
	205	char pf_fhval; / request */
	206	};
	207
	208	struct nfsd4_open {
	209	u32 op_claim_type; /* request */
	210	struct xdr_netobj op_fname; /* request - everything but CLAIM_PREV */
	211	u32 op_delegate_type; /* request - CLAIM_PREV only */
	212	stateid_t op_delegate_stateid; /* request - response */
	213	u32 op_create; /* request */
	214	u32 op_createmode; /* request */
	215	u32 op_bmval[2]; /* request */
	216	union { /* request */
	217	struct iattr iattr; /* UNCHECKED4,GUARDED4 */
	218	nfs4_verifier verf; /* EXCLUSIVE4 */
	219	} u;
	220	clientid_t op_clientid; /* request */
	221	struct xdr_netobj op_owner; /* request */
	222	u32 op_seqid; /* request */
	223	u32 op_share_access; /* request */
	224	u32 op_share_deny; /* request */
	225	stateid_t op_stateid; /* response */
7b190fec	226	u32 op_recall; /* recall */
1da177e4 LT	227	struct nfsd4_change_info op_cinfo; /* response */
	228	u32 op_rflags; /* response */
	229	int op_truncate; /* used during processing */
	230	struct nfs4_stateowner op_stateowner; / used during processing */
	231	struct nfs4_acl *op_acl;
	232	};
	233	#define op_iattr u.iattr
	234	#define op_verf u.verf
	235
	236	struct nfsd4_open_confirm {
	237	stateid_t oc_req_stateid /* request */;
	238	u32 oc_seqid /* request */;
	239	stateid_t oc_resp_stateid /* response */;
	240	struct nfs4_stateowner * oc_stateowner; /* response */
	241	};
	242
	243	struct nfsd4_open_downgrade {
	244	stateid_t od_stateid;
	245	u32 od_seqid;
	246	u32 od_share_access;
	247	u32 od_share_deny;
	248	struct nfs4_stateowner *od_stateowner;
	249	};
	250
	251
	252	struct nfsd4_read {
	253	stateid_t rd_stateid; /* request */
	254	u64 rd_offset; /* request */
	255	u32 rd_length; /* request */
1da177e4 LT	256	int rd_vlen;
	257	struct file *rd_filp;
	258
	259	struct svc_rqst rd_rqstp; / response */
	260	struct svc_fh * rd_fhp; /* response */
	261	};
	262
	263	struct nfsd4_readdir {
	264	u64 rd_cookie; /* request */
	265	nfs4_verifier rd_verf; /* request */
	266	u32 rd_dircount; /* request */
	267	u32 rd_maxcount; /* request */
	268	u32 rd_bmval[2]; /* request */
	269	struct svc_rqst rd_rqstp; / response */
	270	struct svc_fh * rd_fhp; /* response */
	271
	272	struct readdir_cd common;
2ebbc012	273	__be32 * buffer;
1da177e4	274	int buflen;
2ebbc012	275	__be32 * offset;
1da177e4 LT	276	};
	277
	278	struct nfsd4_release_lockowner {
	279	clientid_t rl_clientid;
	280	struct xdr_netobj rl_owner;
	281	};
	282	struct nfsd4_readlink {
	283	struct svc_rqst rl_rqstp; / request */
	284	struct svc_fh * rl_fhp; /* request */
	285	};
	286
	287	struct nfsd4_remove {
	288	u32 rm_namelen; /* request */
	289	char * rm_name; /* request */
	290	struct nfsd4_change_info rm_cinfo; /* response */
	291	};
	292
	293	struct nfsd4_rename {
	294	u32 rn_snamelen; /* request */
	295	char * rn_sname; /* request */
	296	u32 rn_tnamelen; /* request */
	297	char * rn_tname; /* request */
	298	struct nfsd4_change_info rn_sinfo; /* response */
	299	struct nfsd4_change_info rn_tinfo; /* response */
	300	};
	301
dcb488a3 AA	302	struct nfsd4_secinfo {
	303	u32 si_namelen; /* request */
	304	char si_name; / request */
	305	struct svc_export si_exp; / response */
	306	};
	307
1da177e4 LT	308	struct nfsd4_setattr {
	309	stateid_t sa_stateid; /* request */
	310	u32 sa_bmval[2]; /* request */
	311	struct iattr sa_iattr; /* request */
	312	struct nfs4_acl *sa_acl;
	313	};
	314
	315	struct nfsd4_setclientid {
	316	nfs4_verifier se_verf; /* request */
	317	u32 se_namelen; /* request */
	318	char * se_name; /* request */
	319	u32 se_callback_prog; /* request */
	320	u32 se_callback_netid_len; /* request */
	321	char * se_callback_netid_val; /* request */
	322	u32 se_callback_addr_len; /* request */
	323	char * se_callback_addr_val; /* request */
	324	u32 se_callback_ident; /* request */
	325	clientid_t se_clientid; /* response */
	326	nfs4_verifier se_confirm; /* response */
	327	};
	328
	329	struct nfsd4_setclientid_confirm {
	330	clientid_t sc_clientid;
	331	nfs4_verifier sc_confirm;
	332	};
	333
	334	/* also used for NVERIFY */
	335	struct nfsd4_verify {
	336	u32 ve_bmval[2]; /* request */
	337	u32 ve_attrlen; /* request */
	338	char * ve_attrval; /* request */
	339	};
	340
	341	struct nfsd4_write {
	342	stateid_t wr_stateid; /* request */
	343	u64 wr_offset; /* request */
	344	u32 wr_stable_how; /* request */
	345	u32 wr_buflen; /* request */
1da177e4 LT	346	int wr_vlen;
	347
	348	u32 wr_bytes_written; /* response */
	349	u32 wr_how_written; /* response */
	350	nfs4_verifier wr_verifier; /* response */
	351	};
	352
2db134eb	353	struct nfsd4_exchange_id {
0733d213 AA	354	nfs4_verifier verifier;
	355	struct xdr_netobj clname;
	356	u32 flags;
	357	clientid_t clientid;
	358	u32 seqid;
	359	int spa_how;
2db134eb AA	360	};
	361
	362	struct nfsd4_create_session {
	363	int foo; /* stub */
	364	};
	365
	366	struct nfsd4_sequence {
b85d4c01 BH	367	struct nfs4_sessionid sessionid; /* request/response */
	368	u32 seqid; /* request/response */
	369	u32 slotid; /* request/response */
	370	u32 maxslots; /* request/response */
	371	u32 cachethis; /* request */
	372	#if 0
	373	u32 target_maxslots; /* response */
	374	u32 status_flags; /* response */
	375	#endif /* not yet */
2db134eb AA	376	};
	377
	378	struct nfsd4_destroy_session {
	379	int foo; /* stub */
	380	};
	381
1da177e4 LT	382	struct nfsd4_op {
1da177e4 LT	383	int opnum;
b37ad28b	384	__be32 status;
1da177e4 LT	385	union {
	386	struct nfsd4_access access;
	387	struct nfsd4_close close;
	388	struct nfsd4_commit commit;
	389	struct nfsd4_create create;
	390	struct nfsd4_delegreturn delegreturn;
	391	struct nfsd4_getattr getattr;
	392	struct svc_fh * getfh;
	393	struct nfsd4_link link;
	394	struct nfsd4_lock lock;
	395	struct nfsd4_lockt lockt;
	396	struct nfsd4_locku locku;
	397	struct nfsd4_lookup lookup;
	398	struct nfsd4_verify nverify;
	399	struct nfsd4_open open;
	400	struct nfsd4_open_confirm open_confirm;
	401	struct nfsd4_open_downgrade open_downgrade;
	402	struct nfsd4_putfh putfh;
	403	struct nfsd4_read read;
	404	struct nfsd4_readdir readdir;
	405	struct nfsd4_readlink readlink;
	406	struct nfsd4_remove remove;
	407	struct nfsd4_rename rename;
	408	clientid_t renew;
dcb488a3	409	struct nfsd4_secinfo secinfo;
1da177e4 LT	410	struct nfsd4_setattr setattr;
	411	struct nfsd4_setclientid setclientid;
	412	struct nfsd4_setclientid_confirm setclientid_confirm;
	413	struct nfsd4_verify verify;
	414	struct nfsd4_write write;
	415	struct nfsd4_release_lockowner release_lockowner;
2db134eb AA	416
	417	/* NFSv4.1 */
	418	struct nfsd4_exchange_id exchange_id;
	419	struct nfsd4_create_session create_session;
	420	struct nfsd4_destroy_session destroy_session;
	421	struct nfsd4_sequence sequence;
1da177e4 LT	422	} u;
	423	struct nfs4_replay * replay;
	424	};
	425
	426	struct nfsd4_compoundargs {
	427	/* scratch variables for XDR decode */
2ebbc012 AV	428	__be32 * p;
2ebbc012 AV	429	__be32 * end;
1da177e4 LT	430	struct page ** pagelist;
1da177e4 LT	431	int pagelen;
2ebbc012 AV	432	__be32 tmp[8];
2ebbc012 AV	433	__be32 * tmpp;
1da177e4 LT	434	struct tmpbuf {
	435	struct tmpbuf *next;
	436	void (release)(const void );
	437	void *buf;
	438	} *to_free;
	439
	440	struct svc_rqst *rqstp;
	441
	442	u32 taglen;
	443	char * tag;
	444	u32 minorversion;
	445	u32 opcnt;
	446	struct nfsd4_op *ops;
	447	struct nfsd4_op iops[8];
	448	};
	449
	450	struct nfsd4_compoundres {
	451	/* scratch variables for XDR encode */
2ebbc012 AV	452	__be32 * p;
2ebbc012 AV	453	__be32 * end;
1da177e4 LT	454	struct xdr_buf * xbuf;
	455	struct svc_rqst * rqstp;
	456
	457	u32 taglen;
	458	char * tag;
	459	u32 opcnt;
e354d571 AA	460	__be32 * tagp; /* tag, opcount encode location */
e354d571 AA	461	struct nfsd4_compound_state cstate;
1da177e4 LT	462	};
	463
	464	#define NFS4_SVC_XDRSIZE sizeof(struct nfsd4_compoundargs)
	465
	466	static inline void
	467	set_change_info(struct nfsd4_change_info cinfo, struct svc_fh fhp)
	468	{
	469	BUG_ON(!fhp->fh_pre_saved \|\| !fhp->fh_post_saved);
	470	cinfo->atomic = 1;
	471	cinfo->before_ctime_sec = fhp->fh_pre_ctime.tv_sec;
	472	cinfo->before_ctime_nsec = fhp->fh_pre_ctime.tv_nsec;
40ee5dc6 PS	473	cinfo->after_ctime_sec = fhp->fh_post_attr.ctime.tv_sec;
40ee5dc6 PS	474	cinfo->after_ctime_nsec = fhp->fh_post_attr.ctime.tv_nsec;
1da177e4 LT	475	}
1da177e4 LT	476
2ebbc012 AV	477	int nfs4svc_encode_voidres(struct svc_rqst , __be32 , void *);
2ebbc012 AV	478	int nfs4svc_decode_compoundargs(struct svc_rqst , __be32 ,
1da177e4	479	struct nfsd4_compoundargs *);
2ebbc012	480	int nfs4svc_encode_compoundres(struct svc_rqst , __be32 ,
1da177e4 LT	481	struct nfsd4_compoundres *);
	482	void nfsd4_encode_operation(struct nfsd4_compoundres , struct nfsd4_op );
	483	void nfsd4_encode_replay(struct nfsd4_compoundres resp, struct nfsd4_op op);
b37ad28b AV	484	__be32 nfsd4_encode_fattr(struct svc_fh fhp, struct svc_export exp,
b37ad28b AV	485	struct dentry dentry, __be32 buffer, int *countp,
406a7ea9	486	u32 bmval, struct svc_rqst , int ignore_crossmnt);
b37ad28b	487	extern __be32 nfsd4_setclientid(struct svc_rqst *rqstp,
b591480b	488	struct nfsd4_compound_state *,
1da177e4	489	struct nfsd4_setclientid *setclid);
b37ad28b	490	extern __be32 nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
b591480b	491	struct nfsd4_compound_state *,
1da177e4	492	struct nfsd4_setclientid_confirm *setclientid_confirm);
074fe897 AA	493	extern void nfsd4_store_cache_entry(struct nfsd4_compoundres *resp);
074fe897 AA	494	extern __be32 nfsd4_replay_cache_entry(struct nfsd4_compoundres *resp);
069b6ad4 AA	495	extern __be32 nfsd4_exchange_id(struct svc_rqst *rqstp,
	496	struct nfsd4_compound_state *,
	497	struct nfsd4_exchange_id *);
	498	extern __be32 nfsd4_create_session(struct svc_rqst *,
	499	struct nfsd4_compound_state *,
	500	struct nfsd4_create_session *);
	501	extern __be32 nfsd4_sequence(struct svc_rqst *,
	502	struct nfsd4_compound_state *,
	503	struct nfsd4_sequence *);
	504	extern __be32 nfsd4_destroy_session(struct svc_rqst *,
	505	struct nfsd4_compound_state *,
	506	struct nfsd4_destroy_session *);
b37ad28b AV	507	extern __be32 nfsd4_process_open1(struct nfsd4_open *open);
b37ad28b AV	508	extern __be32 nfsd4_process_open2(struct svc_rqst *rqstp,
1da177e4	509	struct svc_fh current_fh, struct nfsd4_open open);
b37ad28b	510	extern __be32 nfsd4_open_confirm(struct svc_rqst *rqstp,
a4f1706a	511	struct nfsd4_compound_state , struct nfsd4_open_confirm oc);
ca364317 BF	512	extern __be32 nfsd4_close(struct svc_rqst *rqstp,
ca364317 BF	513	struct nfsd4_compound_state *,
a4f1706a	514	struct nfsd4_close *close);
b37ad28b	515	extern __be32 nfsd4_open_downgrade(struct svc_rqst *rqstp,
a4f1706a BF	516	struct nfsd4_compound_state *,
a4f1706a BF	517	struct nfsd4_open_downgrade *od);
ca364317	518	extern __be32 nfsd4_lock(struct svc_rqst rqstp, struct nfsd4_compound_state ,
a4f1706a	519	struct nfsd4_lock *lock);
ca364317 BF	520	extern __be32 nfsd4_lockt(struct svc_rqst *rqstp,
ca364317 BF	521	struct nfsd4_compound_state *,
1da177e4	522	struct nfsd4_lockt *lockt);
ca364317 BF	523	extern __be32 nfsd4_locku(struct svc_rqst *rqstp,
ca364317 BF	524	struct nfsd4_compound_state *,
a4f1706a	525	struct nfsd4_locku *locku);
b37ad28b	526	extern __be32
1da177e4	527	nfsd4_release_lockowner(struct svc_rqst *rqstp,
b591480b	528	struct nfsd4_compound_state *,
1da177e4 LT	529	struct nfsd4_release_lockowner *rlockowner);
1da177e4 LT	530	extern void nfsd4_release_compoundargs(struct nfsd4_compoundargs *);
b37ad28b	531	extern __be32 nfsd4_delegreturn(struct svc_rqst *rqstp,
ca364317	532	struct nfsd4_compound_state , struct nfsd4_delegreturn dr);
b591480b BF	533	extern __be32 nfsd4_renew(struct svc_rqst *rqstp,
b591480b BF	534	struct nfsd4_compound_state , clientid_t clid);
1da177e4 LT	535	#endif
	536
	537	/*
	538	* Local variables:
	539	* c-basic-offset: 8
	540	* End:
	541	*/