xdr4.h
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上传日期:2009-04-28
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- /*
- * 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_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;
- struct nfs4_stateowner *lk_stateowner;
- };
- #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 */
- struct kvec rd_iov[RPCSVC_MAXPAGES];
- 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;
- u32 * buffer;
- int buflen;
- u32 * 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_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 */
- struct kvec wr_vec[RPCSVC_MAXPAGES]; /* request */
- int wr_vlen;
- 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_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_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;
- } u;
- struct nfs4_replay * replay;
- };
- struct nfsd4_compoundargs {
- /* scratch variables for XDR decode */
- u32 * p;
- u32 * end;
- struct page ** pagelist;
- int pagelen;
- u32 tmp[8];
- u32 * 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 */
- u32 * p;
- u32 * end;
- struct xdr_buf * xbuf;
- struct svc_rqst * rqstp;
- u32 taglen;
- char * tag;
- u32 opcnt;
- u32 * tagp; /* where to encode tag and opcount */
- };
- #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_ctime.tv_sec;
- cinfo->after_ctime_nsec = fhp->fh_post_ctime.tv_nsec;
- }
- 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 *);
- void nfsd4_encode_replay(struct nfsd4_compoundres *resp, struct nfsd4_op *op);
- int nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
- struct dentry *dentry, u32 *buffer, int *countp,
- u32 *bmval, struct svc_rqst *);
- extern int nfsd4_setclientid(struct svc_rqst *rqstp,
- struct nfsd4_setclientid *setclid);
- extern int nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
- struct nfsd4_setclientid_confirm *setclientid_confirm);
- extern int nfsd4_process_open1(struct nfsd4_open *open);
- extern int nfsd4_process_open2(struct svc_rqst *rqstp,
- struct svc_fh *current_fh, struct nfsd4_open *open);
- extern int nfsd4_open_confirm(struct svc_rqst *rqstp,
- struct svc_fh *current_fh, struct nfsd4_open_confirm *oc,
- struct nfs4_stateowner **);
- extern int nfsd4_close(struct svc_rqst *rqstp, struct svc_fh *current_fh,
- struct nfsd4_close *close,
- struct nfs4_stateowner **replay_owner);
- extern int nfsd4_open_downgrade(struct svc_rqst *rqstp,
- struct svc_fh *current_fh, struct nfsd4_open_downgrade *od,
- struct nfs4_stateowner **replay_owner);
- extern int nfsd4_lock(struct svc_rqst *rqstp, struct svc_fh *current_fh,
- struct nfsd4_lock *lock,
- struct nfs4_stateowner **replay_owner);
- extern int nfsd4_lockt(struct svc_rqst *rqstp, struct svc_fh *current_fh,
- struct nfsd4_lockt *lockt);
- extern int nfsd4_locku(struct svc_rqst *rqstp, struct svc_fh *current_fh,
- struct nfsd4_locku *locku,
- struct nfs4_stateowner **replay_owner);
- extern int
- nfsd4_release_lockowner(struct svc_rqst *rqstp,
- struct nfsd4_release_lockowner *rlockowner);
- extern void nfsd4_release_compoundargs(struct nfsd4_compoundargs *);
- extern int nfsd4_delegreturn(struct svc_rqst *rqstp,
- struct svc_fh *current_fh, struct nfsd4_delegreturn *dr);
- #endif
- /*
- * Local variables:
- * c-basic-offset: 8
- * End:
- */