/*
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* Server-side types for NFSv4.
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*
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* Copyright (c) 2002 The Regents of the University of Michigan.
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* All rights reserved.
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*
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* Kendrick Smith <kmsmith@umich.edu>
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* Andy Adamson <andros@umich.edu>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef _LINUX_NFSD_XDR4_H
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#define _LINUX_NFSD_XDR4_H
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#include "state.h"
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#include "nfsd.h"
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#define NFSD4_MAX_TAGLEN 128
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#define XDR_LEN(n) (((n) + 3) & ~3)
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#define CURRENT_STATE_ID_FLAG (1<<0)
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#define SAVED_STATE_ID_FLAG (1<<1)
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#define SET_CSTATE_FLAG(c, f) ((c)->sid_flags |= (f))
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#define HAS_CSTATE_FLAG(c, f) ((c)->sid_flags & (f))
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#define CLEAR_CSTATE_FLAG(c, f) ((c)->sid_flags &= ~(f))
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struct nfsd4_compound_state {
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struct svc_fh current_fh;
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struct svc_fh save_fh;
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struct nfs4_stateowner *replay_owner;
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struct nfs4_client *clp;
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/* For sessions DRC */
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struct nfsd4_session *session;
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struct nfsd4_slot *slot;
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int data_offset;
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bool spo_must_allowed;
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size_t iovlen;
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u32 minorversion;
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__be32 status;
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stateid_t current_stateid;
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stateid_t save_stateid;
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/* to indicate current and saved state id presents */
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u32 sid_flags;
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};
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static inline bool nfsd4_has_session(struct nfsd4_compound_state *cs)
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{
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return cs->slot != NULL;
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}
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struct nfsd4_change_info {
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u32 atomic;
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bool change_supported;
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u32 before_ctime_sec;
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u32 before_ctime_nsec;
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u64 before_change;
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u32 after_ctime_sec;
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u32 after_ctime_nsec;
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u64 after_change;
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};
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struct nfsd4_access {
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u32 ac_req_access; /* request */
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u32 ac_supported; /* response */
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u32 ac_resp_access; /* response */
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};
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struct nfsd4_close {
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u32 cl_seqid; /* request */
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stateid_t cl_stateid; /* request+response */
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};
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struct nfsd4_commit {
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u64 co_offset; /* request */
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u32 co_count; /* request */
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nfs4_verifier co_verf; /* response */
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};
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struct nfsd4_create {
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u32 cr_namelen; /* request */
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char * cr_name; /* request */
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u32 cr_type; /* request */
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union { /* request */
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struct {
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u32 datalen;
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char *data;
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struct kvec first;
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} link; /* NF4LNK */
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struct {
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u32 specdata1;
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u32 specdata2;
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} dev; /* NF4BLK, NF4CHR */
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} u;
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u32 cr_bmval[3]; /* request */
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struct iattr cr_iattr; /* request */
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int cr_umask; /* request */
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struct nfsd4_change_info cr_cinfo; /* response */
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struct nfs4_acl *cr_acl;
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struct xdr_netobj cr_label;
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};
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#define cr_datalen u.link.datalen
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#define cr_data u.link.data
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#define cr_first u.link.first
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#define cr_specdata1 u.dev.specdata1
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#define cr_specdata2 u.dev.specdata2
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struct nfsd4_delegreturn {
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stateid_t dr_stateid;
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};
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struct nfsd4_getattr {
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u32 ga_bmval[3]; /* request */
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struct svc_fh *ga_fhp; /* response */
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};
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struct nfsd4_link {
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u32 li_namelen; /* request */
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char * li_name; /* request */
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struct nfsd4_change_info li_cinfo; /* response */
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};
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struct nfsd4_lock_denied {
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clientid_t ld_clientid;
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struct xdr_netobj ld_owner;
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u64 ld_start;
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u64 ld_length;
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u32 ld_type;
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};
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struct nfsd4_lock {
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/* request */
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u32 lk_type;
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u32 lk_reclaim; /* boolean */
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u64 lk_offset;
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u64 lk_length;
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u32 lk_is_new;
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union {
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struct {
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u32 open_seqid;
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stateid_t open_stateid;
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u32 lock_seqid;
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clientid_t clientid;
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struct xdr_netobj owner;
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} new;
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struct {
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stateid_t lock_stateid;
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u32 lock_seqid;
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} old;
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} v;
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/* response */
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union {
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struct {
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stateid_t stateid;
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} ok;
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struct nfsd4_lock_denied denied;
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} u;
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};
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#define lk_new_open_seqid v.new.open_seqid
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#define lk_new_open_stateid v.new.open_stateid
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#define lk_new_lock_seqid v.new.lock_seqid
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#define lk_new_clientid v.new.clientid
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#define lk_new_owner v.new.owner
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#define lk_old_lock_stateid v.old.lock_stateid
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#define lk_old_lock_seqid v.old.lock_seqid
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#define lk_resp_stateid u.ok.stateid
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#define lk_denied u.denied
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struct nfsd4_lockt {
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u32 lt_type;
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clientid_t lt_clientid;
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struct xdr_netobj lt_owner;
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u64 lt_offset;
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u64 lt_length;
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struct nfsd4_lock_denied lt_denied;
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};
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struct nfsd4_locku {
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u32 lu_type;
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u32 lu_seqid;
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stateid_t lu_stateid;
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u64 lu_offset;
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u64 lu_length;
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};
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struct nfsd4_lookup {
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u32 lo_len; /* request */
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char * lo_name; /* request */
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};
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struct nfsd4_putfh {
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u32 pf_fhlen; /* request */
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char *pf_fhval; /* request */
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bool no_verify; /* represents foreigh fh */
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};
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struct nfsd4_getxattr {
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char *getxa_name; /* request */
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u32 getxa_len; /* request */
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void *getxa_buf;
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};
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struct nfsd4_setxattr {
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u32 setxa_flags; /* request */
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char *setxa_name; /* request */
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char *setxa_buf; /* request */
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u32 setxa_len; /* request */
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struct nfsd4_change_info setxa_cinfo; /* response */
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};
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struct nfsd4_removexattr {
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char *rmxa_name; /* request */
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struct nfsd4_change_info rmxa_cinfo; /* response */
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};
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struct nfsd4_listxattrs {
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u64 lsxa_cookie; /* request */
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u32 lsxa_maxcount; /* request */
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char *lsxa_buf; /* unfiltered buffer (reply) */
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u32 lsxa_len; /* unfiltered len (reply) */
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};
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struct nfsd4_open {
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u32 op_claim_type; /* request */
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struct xdr_netobj op_fname; /* request - everything but CLAIM_PREV */
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u32 op_delegate_type; /* request - CLAIM_PREV only */
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stateid_t op_delegate_stateid; /* request - response */
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u32 op_why_no_deleg; /* response - DELEG_NONE_EXT only */
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u32 op_create; /* request */
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u32 op_createmode; /* request */
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int op_umask; /* request */
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u32 op_bmval[3]; /* request */
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struct iattr op_iattr; /* UNCHECKED4, GUARDED4, EXCLUSIVE4_1 */
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nfs4_verifier op_verf __attribute__((aligned(32)));
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/* EXCLUSIVE4 */
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clientid_t op_clientid; /* request */
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struct xdr_netobj op_owner; /* request */
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u32 op_seqid; /* request */
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u32 op_share_access; /* request */
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u32 op_share_deny; /* request */
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u32 op_deleg_want; /* request */
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stateid_t op_stateid; /* response */
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__be32 op_xdr_error; /* see nfsd4_open_omfg() */
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u32 op_recall; /* recall */
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struct nfsd4_change_info op_cinfo; /* response */
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u32 op_rflags; /* response */
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bool op_truncate; /* used during processing */
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bool op_created; /* used during processing */
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struct nfs4_openowner *op_openowner; /* used during processing */
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struct nfs4_file *op_file; /* used during processing */
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struct nfs4_ol_stateid *op_stp; /* used during processing */
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struct nfs4_clnt_odstate *op_odstate; /* used during processing */
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struct nfs4_acl *op_acl;
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struct xdr_netobj op_label;
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};
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struct nfsd4_open_confirm {
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stateid_t oc_req_stateid /* request */;
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u32 oc_seqid /* request */;
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stateid_t oc_resp_stateid /* response */;
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};
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struct nfsd4_open_downgrade {
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stateid_t od_stateid;
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u32 od_seqid;
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u32 od_share_access; /* request */
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u32 od_deleg_want; /* request */
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u32 od_share_deny; /* request */
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};
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struct nfsd4_read {
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stateid_t rd_stateid; /* request */
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u64 rd_offset; /* request */
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u32 rd_length; /* request */
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int rd_vlen;
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struct nfsd_file *rd_nf;
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struct svc_rqst *rd_rqstp; /* response */
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struct svc_fh *rd_fhp; /* response */
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};
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struct nfsd4_readdir {
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u64 rd_cookie; /* request */
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nfs4_verifier rd_verf; /* request */
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u32 rd_dircount; /* request */
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u32 rd_maxcount; /* request */
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u32 rd_bmval[3]; /* request */
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struct svc_rqst *rd_rqstp; /* response */
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struct svc_fh * rd_fhp; /* response */
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struct readdir_cd common;
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struct xdr_stream *xdr;
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int cookie_offset;
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};
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struct nfsd4_release_lockowner {
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clientid_t rl_clientid;
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struct xdr_netobj rl_owner;
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};
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struct nfsd4_readlink {
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struct svc_rqst *rl_rqstp; /* request */
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struct svc_fh * rl_fhp; /* request */
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};
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struct nfsd4_remove {
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u32 rm_namelen; /* request */
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char * rm_name; /* request */
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struct nfsd4_change_info rm_cinfo; /* response */
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};
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struct nfsd4_rename {
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u32 rn_snamelen; /* request */
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char * rn_sname; /* request */
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u32 rn_tnamelen; /* request */
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char * rn_tname; /* request */
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struct nfsd4_change_info rn_sinfo; /* response */
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struct nfsd4_change_info rn_tinfo; /* response */
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};
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struct nfsd4_secinfo {
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u32 si_namelen; /* request */
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char *si_name; /* request */
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struct svc_export *si_exp; /* response */
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};
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struct nfsd4_secinfo_no_name {
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u32 sin_style; /* request */
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struct svc_export *sin_exp; /* response */
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};
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struct nfsd4_setattr {
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stateid_t sa_stateid; /* request */
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u32 sa_bmval[3]; /* request */
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struct iattr sa_iattr; /* request */
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struct nfs4_acl *sa_acl;
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struct xdr_netobj sa_label;
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};
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struct nfsd4_setclientid {
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nfs4_verifier se_verf; /* request */
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struct xdr_netobj se_name;
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u32 se_callback_prog; /* request */
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u32 se_callback_netid_len; /* request */
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char * se_callback_netid_val; /* request */
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u32 se_callback_addr_len; /* request */
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char * se_callback_addr_val; /* request */
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u32 se_callback_ident; /* request */
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clientid_t se_clientid; /* response */
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nfs4_verifier se_confirm; /* response */
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};
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struct nfsd4_setclientid_confirm {
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clientid_t sc_clientid;
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nfs4_verifier sc_confirm;
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};
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struct nfsd4_saved_compoundargs {
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__be32 *p;
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__be32 *end;
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int pagelen;
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struct page **pagelist;
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};
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struct nfsd4_test_stateid_id {
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__be32 ts_id_status;
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stateid_t ts_id_stateid;
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struct list_head ts_id_list;
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};
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struct nfsd4_test_stateid {
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u32 ts_num_ids;
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struct list_head ts_stateid_list;
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};
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struct nfsd4_free_stateid {
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stateid_t fr_stateid; /* request */
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};
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/* also used for NVERIFY */
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struct nfsd4_verify {
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u32 ve_bmval[3]; /* request */
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u32 ve_attrlen; /* request */
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char * ve_attrval; /* request */
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};
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struct nfsd4_write {
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stateid_t wr_stateid; /* request */
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u64 wr_offset; /* request */
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u32 wr_stable_how; /* request */
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u32 wr_buflen; /* request */
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struct kvec wr_head;
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struct page ** wr_pagelist; /* request */
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u32 wr_bytes_written; /* response */
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u32 wr_how_written; /* response */
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nfs4_verifier wr_verifier; /* response */
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};
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struct nfsd4_exchange_id {
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nfs4_verifier verifier;
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struct xdr_netobj clname;
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u32 flags;
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clientid_t clientid;
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u32 seqid;
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int spa_how;
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u32 spo_must_enforce[3];
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u32 spo_must_allow[3];
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struct xdr_netobj nii_domain;
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struct xdr_netobj nii_name;
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struct timespec64 nii_time;
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};
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struct nfsd4_sequence {
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struct nfs4_sessionid sessionid; /* request/response */
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u32 seqid; /* request/response */
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u32 slotid; /* request/response */
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u32 maxslots; /* request/response */
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u32 cachethis; /* request */
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#if 0
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u32 target_maxslots; /* response */
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#endif /* not yet */
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u32 status_flags; /* response */
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};
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struct nfsd4_destroy_session {
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struct nfs4_sessionid sessionid;
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};
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struct nfsd4_destroy_clientid {
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clientid_t clientid;
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};
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struct nfsd4_reclaim_complete {
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u32 rca_one_fs;
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};
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struct nfsd4_deviceid {
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u64 fsid_idx;
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u32 generation;
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u32 pad;
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};
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struct nfsd4_layout_seg {
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u32 iomode;
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u64 offset;
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u64 length;
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};
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struct nfsd4_getdeviceinfo {
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struct nfsd4_deviceid gd_devid; /* request */
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u32 gd_layout_type; /* request */
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u32 gd_maxcount; /* request */
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u32 gd_notify_types;/* request - response */
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void *gd_device; /* response */
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};
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struct nfsd4_layoutget {
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u64 lg_minlength; /* request */
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u32 lg_signal; /* request */
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u32 lg_layout_type; /* request */
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u32 lg_maxcount; /* request */
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stateid_t lg_sid; /* request/response */
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struct nfsd4_layout_seg lg_seg; /* request/response */
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void *lg_content; /* response */
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};
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struct nfsd4_layoutcommit {
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stateid_t lc_sid; /* request */
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struct nfsd4_layout_seg lc_seg; /* request */
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u32 lc_reclaim; /* request */
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u32 lc_newoffset; /* request */
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u64 lc_last_wr; /* request */
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struct timespec64 lc_mtime; /* request */
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u32 lc_layout_type; /* request */
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u32 lc_up_len; /* layout length */
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void *lc_up_layout; /* decoded by callback */
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u32 lc_size_chg; /* boolean for response */
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u64 lc_newsize; /* response */
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};
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struct nfsd4_layoutreturn {
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u32 lr_return_type; /* request */
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u32 lr_layout_type; /* request */
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struct nfsd4_layout_seg lr_seg; /* request */
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u32 lr_reclaim; /* request */
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u32 lrf_body_len; /* request */
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void *lrf_body; /* request */
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stateid_t lr_sid; /* request/response */
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u32 lrs_present; /* response */
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};
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struct nfsd4_fallocate {
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/* request */
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stateid_t falloc_stateid;
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loff_t falloc_offset;
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u64 falloc_length;
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};
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struct nfsd4_clone {
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/* request */
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stateid_t cl_src_stateid;
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stateid_t cl_dst_stateid;
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u64 cl_src_pos;
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u64 cl_dst_pos;
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u64 cl_count;
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};
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struct nfsd42_write_res {
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u64 wr_bytes_written;
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u32 wr_stable_how;
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nfs4_verifier wr_verifier;
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stateid_t cb_stateid;
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};
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struct nfsd4_copy {
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/* request */
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stateid_t cp_src_stateid;
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stateid_t cp_dst_stateid;
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u64 cp_src_pos;
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u64 cp_dst_pos;
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u64 cp_count;
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struct nl4_server cp_src;
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bool cp_intra;
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/* both */
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bool cp_synchronous;
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/* response */
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struct nfsd42_write_res cp_res;
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/* for cb_offload */
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struct nfsd4_callback cp_cb;
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__be32 nfserr;
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struct knfsd_fh fh;
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struct nfs4_client *cp_clp;
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struct nfsd_file *nf_src;
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struct nfsd_file *nf_dst;
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copy_stateid_t cp_stateid;
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struct list_head copies;
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struct task_struct *copy_task;
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refcount_t refcount;
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bool stopped;
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struct vfsmount *ss_mnt;
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struct nfs_fh c_fh;
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nfs4_stateid stateid;
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};
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extern bool inter_copy_offload_enable;
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struct nfsd4_seek {
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/* request */
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stateid_t seek_stateid;
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loff_t seek_offset;
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u32 seek_whence;
|
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/* response */
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u32 seek_eof;
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loff_t seek_pos;
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};
|
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struct nfsd4_offload_status {
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/* request */
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stateid_t stateid;
|
|
/* response */
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u64 count;
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u32 status;
|
};
|
|
struct nfsd4_copy_notify {
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/* request */
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stateid_t cpn_src_stateid;
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struct nl4_server cpn_dst;
|
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/* response */
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stateid_t cpn_cnr_stateid;
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u64 cpn_sec;
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u32 cpn_nsec;
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struct nl4_server cpn_src;
|
};
|
|
struct nfsd4_op {
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int opnum;
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const struct nfsd4_operation * opdesc;
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__be32 status;
|
union nfsd4_op_u {
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struct nfsd4_access access;
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struct nfsd4_close close;
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struct nfsd4_commit commit;
|
struct nfsd4_create create;
|
struct nfsd4_delegreturn delegreturn;
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struct nfsd4_getattr getattr;
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struct svc_fh * getfh;
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struct nfsd4_link link;
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struct nfsd4_lock lock;
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struct nfsd4_lockt lockt;
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struct nfsd4_locku locku;
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struct nfsd4_lookup lookup;
|
struct nfsd4_verify nverify;
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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_backchannel_ctl backchannel_ctl;
|
struct nfsd4_bind_conn_to_session bind_conn_to_session;
|
struct nfsd4_create_session create_session;
|
struct nfsd4_destroy_session destroy_session;
|
struct nfsd4_destroy_clientid destroy_clientid;
|
struct nfsd4_sequence sequence;
|
struct nfsd4_reclaim_complete reclaim_complete;
|
struct nfsd4_test_stateid test_stateid;
|
struct nfsd4_free_stateid free_stateid;
|
struct nfsd4_getdeviceinfo getdeviceinfo;
|
struct nfsd4_layoutget layoutget;
|
struct nfsd4_layoutcommit layoutcommit;
|
struct nfsd4_layoutreturn layoutreturn;
|
struct nfsd4_secinfo_no_name secinfo_no_name;
|
|
/* NFSv4.2 */
|
struct nfsd4_fallocate allocate;
|
struct nfsd4_fallocate deallocate;
|
struct nfsd4_clone clone;
|
struct nfsd4_copy copy;
|
struct nfsd4_offload_status offload_status;
|
struct nfsd4_copy_notify copy_notify;
|
struct nfsd4_seek seek;
|
|
struct nfsd4_getxattr getxattr;
|
struct nfsd4_setxattr setxattr;
|
struct nfsd4_listxattrs listxattrs;
|
struct nfsd4_removexattr removexattr;
|
} u;
|
struct nfs4_replay * replay;
|
};
|
|
bool nfsd4_cache_this_op(struct nfsd4_op *);
|
|
/*
|
* Memory needed just for the duration of processing one compound:
|
*/
|
struct svcxdr_tmpbuf {
|
struct svcxdr_tmpbuf *next;
|
char buf[];
|
};
|
|
struct nfsd4_compoundargs {
|
/* scratch variables for XDR decode */
|
__be32 * p;
|
__be32 * end;
|
struct page ** pagelist;
|
int pagelen;
|
bool tail;
|
__be32 tmp[8];
|
__be32 * tmpp;
|
struct svcxdr_tmpbuf *to_free;
|
|
struct svc_rqst *rqstp;
|
|
u32 taglen;
|
char * tag;
|
u32 minorversion;
|
u32 opcnt;
|
struct nfsd4_op *ops;
|
struct nfsd4_op iops[8];
|
int cachetype;
|
};
|
|
struct nfsd4_compoundres {
|
/* scratch variables for XDR encode */
|
struct xdr_stream xdr;
|
struct svc_rqst * rqstp;
|
|
u32 taglen;
|
char * tag;
|
u32 opcnt;
|
__be32 * tagp; /* tag, opcount encode location */
|
struct nfsd4_compound_state cstate;
|
};
|
|
static inline bool nfsd4_is_solo_sequence(struct nfsd4_compoundres *resp)
|
{
|
struct nfsd4_compoundargs *args = resp->rqstp->rq_argp;
|
return resp->opcnt == 1 && args->ops[0].opnum == OP_SEQUENCE;
|
}
|
|
/*
|
* The session reply cache only needs to cache replies that the client
|
* actually asked us to. But it's almost free for us to cache compounds
|
* consisting of only a SEQUENCE op, so we may as well cache those too.
|
* Also, the protocol doesn't give us a convenient response in the case
|
* of a replay of a solo SEQUENCE op that wasn't cached
|
* (RETRY_UNCACHED_REP can only be returned in the second op of a
|
* compound).
|
*/
|
static inline bool nfsd4_cache_this(struct nfsd4_compoundres *resp)
|
{
|
return (resp->cstate.slot->sl_flags & NFSD4_SLOT_CACHETHIS)
|
|| nfsd4_is_solo_sequence(resp);
|
}
|
|
static inline bool nfsd4_last_compound_op(struct svc_rqst *rqstp)
|
{
|
struct nfsd4_compoundres *resp = rqstp->rq_resp;
|
struct nfsd4_compoundargs *argp = rqstp->rq_argp;
|
|
return argp->opcnt == resp->opcnt;
|
}
|
|
const struct nfsd4_operation *OPDESC(struct nfsd4_op *op);
|
int nfsd4_max_reply(struct svc_rqst *rqstp, struct nfsd4_op *op);
|
void warn_on_nonidempotent_op(struct nfsd4_op *op);
|
|
#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);
|
cinfo->atomic = (u32)fhp->fh_post_saved;
|
cinfo->change_supported = IS_I_VERSION(d_inode(fhp->fh_dentry));
|
|
cinfo->before_change = fhp->fh_pre_change;
|
cinfo->after_change = fhp->fh_post_change;
|
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;
|
|
}
|
|
|
bool nfsd4_mach_creds_match(struct nfs4_client *cl, struct svc_rqst *rqstp);
|
int nfs4svc_decode_voidarg(struct svc_rqst *, __be32 *);
|
int nfs4svc_encode_voidres(struct svc_rqst *, __be32 *);
|
int nfs4svc_decode_compoundargs(struct svc_rqst *, __be32 *);
|
int nfs4svc_encode_compoundres(struct svc_rqst *, __be32 *);
|
__be32 nfsd4_check_resp_size(struct nfsd4_compoundres *, u32);
|
void nfsd4_encode_operation(struct nfsd4_compoundres *, struct nfsd4_op *);
|
void nfsd4_encode_replay(struct xdr_stream *xdr, struct nfsd4_op *op);
|
__be32 nfsd4_encode_fattr_to_buf(__be32 **p, int words,
|
struct svc_fh *fhp, struct svc_export *exp,
|
struct dentry *dentry,
|
u32 *bmval, struct svc_rqst *, int ignore_crossmnt);
|
extern __be32 nfsd4_setclientid(struct svc_rqst *rqstp,
|
struct nfsd4_compound_state *, union nfsd4_op_u *u);
|
extern __be32 nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
|
struct nfsd4_compound_state *, union nfsd4_op_u *u);
|
extern __be32 nfsd4_exchange_id(struct svc_rqst *rqstp,
|
struct nfsd4_compound_state *, union nfsd4_op_u *u);
|
extern __be32 nfsd4_backchannel_ctl(struct svc_rqst *,
|
struct nfsd4_compound_state *, union nfsd4_op_u *u);
|
extern __be32 nfsd4_bind_conn_to_session(struct svc_rqst *,
|
struct nfsd4_compound_state *, union nfsd4_op_u *u);
|
extern __be32 nfsd4_create_session(struct svc_rqst *,
|
struct nfsd4_compound_state *, union nfsd4_op_u *u);
|
extern __be32 nfsd4_sequence(struct svc_rqst *,
|
struct nfsd4_compound_state *, union nfsd4_op_u *u);
|
extern void nfsd4_sequence_done(struct nfsd4_compoundres *resp);
|
extern __be32 nfsd4_destroy_session(struct svc_rqst *,
|
struct nfsd4_compound_state *, union nfsd4_op_u *u);
|
extern __be32 nfsd4_destroy_clientid(struct svc_rqst *, struct nfsd4_compound_state *,
|
union nfsd4_op_u *u);
|
__be32 nfsd4_reclaim_complete(struct svc_rqst *, struct nfsd4_compound_state *,
|
union nfsd4_op_u *u);
|
extern __be32 nfsd4_process_open1(struct nfsd4_compound_state *,
|
struct nfsd4_open *open, struct nfsd_net *nn);
|
extern __be32 nfsd4_process_open2(struct svc_rqst *rqstp,
|
struct svc_fh *current_fh, struct nfsd4_open *open);
|
extern void nfsd4_cstate_clear_replay(struct nfsd4_compound_state *cstate);
|
extern void nfsd4_cleanup_open_state(struct nfsd4_compound_state *cstate,
|
struct nfsd4_open *open);
|
extern __be32 nfsd4_open_confirm(struct svc_rqst *rqstp,
|
struct nfsd4_compound_state *, union nfsd4_op_u *u);
|
extern __be32 nfsd4_close(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
|
union nfsd4_op_u *u);
|
extern __be32 nfsd4_open_downgrade(struct svc_rqst *rqstp,
|
struct nfsd4_compound_state *, union nfsd4_op_u *u);
|
extern __be32 nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
|
union nfsd4_op_u *u);
|
extern __be32 nfsd4_lockt(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
|
union nfsd4_op_u *u);
|
extern __be32 nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
|
union nfsd4_op_u *u);
|
extern __be32
|
nfsd4_release_lockowner(struct svc_rqst *rqstp,
|
struct nfsd4_compound_state *, union nfsd4_op_u *u);
|
extern void nfsd4_release_compoundargs(struct svc_rqst *rqstp);
|
extern __be32 nfsd4_delegreturn(struct svc_rqst *rqstp,
|
struct nfsd4_compound_state *, union nfsd4_op_u *u);
|
extern __be32 nfsd4_renew(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
|
union nfsd4_op_u *u);
|
extern __be32 nfsd4_test_stateid(struct svc_rqst *rqstp,
|
struct nfsd4_compound_state *, union nfsd4_op_u *);
|
extern __be32 nfsd4_free_stateid(struct svc_rqst *rqstp,
|
struct nfsd4_compound_state *, union nfsd4_op_u *);
|
extern void nfsd4_bump_seqid(struct nfsd4_compound_state *, __be32 nfserr);
|
|
enum nfsd4_op_flags {
|
ALLOWED_WITHOUT_FH = 1 << 0, /* No current filehandle required */
|
ALLOWED_ON_ABSENT_FS = 1 << 1, /* ops processed on absent fs */
|
ALLOWED_AS_FIRST_OP = 1 << 2, /* ops reqired first in compound */
|
/* For rfc 5661 section 2.6.3.1.1: */
|
OP_HANDLES_WRONGSEC = 1 << 3,
|
OP_IS_PUTFH_LIKE = 1 << 4,
|
/*
|
* These are the ops whose result size we estimate before
|
* encoding, to avoid performing an op then not being able to
|
* respond or cache a response. This includes writes and setattrs
|
* as well as the operations usually called "nonidempotent":
|
*/
|
OP_MODIFIES_SOMETHING = 1 << 5,
|
/*
|
* Cache compounds containing these ops in the xid-based drc:
|
* We use the DRC for compounds containing non-idempotent
|
* operations, *except* those that are 4.1-specific (since
|
* sessions provide their own EOS), and except for stateful
|
* operations other than setclientid and setclientid_confirm
|
* (since sequence numbers provide EOS for open, lock, etc in
|
* the v4.0 case).
|
*/
|
OP_CACHEME = 1 << 6,
|
/*
|
* These are ops which clear current state id.
|
*/
|
OP_CLEAR_STATEID = 1 << 7,
|
/* Most ops return only an error on failure; some may do more: */
|
OP_NONTRIVIAL_ERROR_ENCODE = 1 << 8,
|
};
|
|
struct nfsd4_operation {
|
__be32 (*op_func)(struct svc_rqst *, struct nfsd4_compound_state *,
|
union nfsd4_op_u *);
|
void (*op_release)(union nfsd4_op_u *);
|
u32 op_flags;
|
char *op_name;
|
/* Try to get response size before operation */
|
u32 (*op_rsize_bop)(struct svc_rqst *, struct nfsd4_op *);
|
void (*op_get_currentstateid)(struct nfsd4_compound_state *,
|
union nfsd4_op_u *);
|
void (*op_set_currentstateid)(struct nfsd4_compound_state *,
|
union nfsd4_op_u *);
|
};
|
|
|
#endif
|
|
/*
|
* Local variables:
|
* c-basic-offset: 8
|
* End:
|
*/
|
