include/linux/nfsd/xdr4.h - kernel/msm - Gitiles

 /*
  *  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;
 };

 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 {
 	int	foo;	/* stub */
 };

 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 __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:
  */
	/*
	* 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;
	};

	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 {
	int foo; /* stub */
	};

	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 __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:
	*/