Commit 9b831fb9 authored by Neil Brown's avatar Neil Brown Committed by Linus Torvalds

[PATCH] kNFSd: header file for NFSv4 XDR

Instantiate a new file include/linux/nfsd/xdr4.h (server-side XDR for
NFSv4).
parent 930357a9
/*
* 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
#define NFSD4_MAX_TAGLEN 128
typedef struct {
u32 cl_boot;
u32 cl_id;
} clientid_t;
typedef u32 stateid_boot_t; /* used to detect stale stateids */
typedef u32 stateid_lockowner_t; /* lockowner id - used in various places */
typedef u32 stateid_file_t; /* identifies a unique file per lockowner */
typedef u32 stateid_generation_t; /* used to update stateids */
typedef struct {
stateid_boot_t so_boot;
stateid_lockowner_t so_lockowner;
stateid_file_t so_file;
} stateid_other_t;
typedef struct {
stateid_generation_t st_generation;
stateid_other_t st_other;
} stateid_t;
typedef u32 delegation_zero_t;
typedef u32 delegation_boot_t;
typedef u64 delegation_id_t;
typedef struct {
delegation_zero_t ds_zero;
delegation_boot_t ds_boot;
delegation_id_t ds_id;
} delegation_stateid_t;
struct nfsd4_change_info {
u32 atomic;
u32 before_size;
u32 before_ctime;
u32 after_size;
u32 after_ctime;
};
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 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 */
};
#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_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_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 */
u32 op_namelen; /* request - everything but CLAIM_PREV */
char * op_name; /* request - everything but CLAIM_PREV */
u32 op_delegate_type; /* request - CLAIM_PREV only */
delegation_stateid_t op_delegate_stateid; /* request - CLAIM_DELEGATE_CUR only */
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 */
u32 op_ownerlen; /* request */
char * op_owner; /* request */
u32 op_seqid; /* request */
u32 op_share_access; /* request */
u32 op_share_deny; /* request */
stateid_t op_stateid; /* response */
struct nfsd4_change_info op_cinfo; /* response */
u32 op_rflags; /* response */
int op_truncate; /* used during processing */
};
#define op_iattr u.iattr
#define op_verf u.verf
struct nfsd4_read {
stateid_t rd_stateid; /* request */
u64 rd_offset; /* request */
u32 rd_length; /* request */
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 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_setattr {
stateid_t sa_stateid; /* request */
u32 sa_bmval[2]; /* request */
struct iattr sa_iattr; /* request */
};
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 */
};
/* 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 */
char * wr_buf; /* request */
u32 wr_bytes_written; /* response */
u32 wr_how_written; /* response */
nfs4_verifier wr_verifier; /* response */
};
struct nfsd4_op {
int opnum;
int status;
union {
struct nfsd4_access access;
struct nfsd4_close close;
struct nfsd4_commit commit;
struct nfsd4_create create;
struct nfsd4_getattr getattr;
struct svc_fh * getfh;
struct nfsd4_link link;
struct nfsd4_lookup lookup;
struct nfsd4_verify nverify;
struct nfsd4_open open;
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_setattr setattr;
struct nfsd4_setclientid setclientid;
clientid_t setclientid_confirm;
struct nfsd4_verify verify;
struct nfsd4_write write;
} u;
};
struct nfsd4_compoundargs {
/* scratch variables for XDR decode */
u32 * p;
u32 * end;
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 */
u32 * p;
u32 * end;
u32 taglen;
char * tag;
u32 opcnt;
};
#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_size = fhp->fh_pre_size;
cinfo->before_ctime = fhp->fh_pre_ctime;
cinfo->after_size = fhp->fh_post_size;
cinfo->after_ctime = fhp->fh_post_ctime;
}
int nfs4svc_encode_voidres(struct svc_rqst *, u32 *, void *);
int nfs4svc_decode_compoundargs(struct svc_rqst *, u32 *, struct nfsd4_compoundargs *);
int nfs4svc_encode_compoundres(struct svc_rqst *, u32 *, struct nfsd4_compoundres *);
void nfsd4_encode_operation(struct nfsd4_compoundres *, struct nfsd4_op *);
int nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
struct dentry *dentry, u32 *buffer, int *countp, u32 *bmval);
#endif
/*
* Local variables:
* c-basic-offset: 8
* End:
*/
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