| /* |
| * 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 "state.h" |
| #include "nfsd.h" |
| |
| #define NFSD4_MAX_TAGLEN 128 |
| #define XDR_LEN(n) (((n) + 3) & ~3) |
| |
| struct nfsd4_compound_state { |
| struct svc_fh current_fh; |
| struct svc_fh save_fh; |
| struct nfs4_stateowner *replay_owner; |
| /* For sessions DRC */ |
| struct nfsd4_session *session; |
| struct nfsd4_slot *slot; |
| __be32 *datap; |
| size_t iovlen; |
| u32 minorversion; |
| u32 status; |
| }; |
| |
| static inline bool nfsd4_has_session(struct nfsd4_compound_state *cs) |
| { |
| return cs->slot != NULL; |
| } |
| |
| struct nfsd4_change_info { |
| u32 atomic; |
| bool change_supported; |
| u32 before_ctime_sec; |
| u32 before_ctime_nsec; |
| u64 before_change; |
| u32 after_ctime_sec; |
| u32 after_ctime_nsec; |
| u64 after_change; |
| }; |
| |
| 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[3]; /* 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[3]; /* 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[3]; /* request */ |
| struct iattr iattr; /* UNCHECKED4, GUARDED4, EXCLUSIVE4_1 */ |
| nfs4_verifier verf; /* EXCLUSIVE4 */ |
| 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 iattr |
| #define op_verf 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[3]; /* 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[3]; /* 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[3]; /* 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_sequence { |
| struct nfs4_sessionid sessionid; /* request/response */ |
| u32 seqid; /* request/response */ |
| u32 slotid; /* request/response */ |
| u32 maxslots; /* request/response */ |
| u32 cachethis; /* request */ |
| #if 0 |
| u32 target_maxslots; /* response */ |
| u32 status_flags; /* response */ |
| #endif /* not yet */ |
| }; |
| |
| struct nfsd4_destroy_session { |
| struct nfs4_sessionid sessionid; |
| }; |
| |
| 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; |
| }; |
| |
| 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; |
| } |
| |
| static inline bool nfsd4_not_cached(struct nfsd4_compoundres *resp) |
| { |
| return !resp->cstate.slot->sl_cachethis || nfsd4_is_solo_sequence(resp); |
| } |
| |
| #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->change_supported = IS_I_VERSION(fhp->fh_dentry->d_inode); |
| if (cinfo->change_supported) { |
| cinfo->before_change = fhp->fh_pre_change; |
| cinfo->after_change = fhp->fh_post_change; |
| } else { |
| cinfo->before_ctime_sec = fhp->fh_pre_ctime.tv_sec; |
| cinfo->before_ctime_nsec = fhp->fh_pre_ctime.tv_nsec; |
| cinfo->after_ctime_sec = fhp->fh_post_attr.ctime.tv_sec; |
| cinfo->after_ctime_nsec = fhp->fh_post_attr.ctime.tv_nsec; |
| } |
| } |
| |
| int nfs4svc_encode_voidres(struct svc_rqst *, __be32 *, void *); |
| int nfs4svc_decode_compoundargs(struct svc_rqst *, __be32 *, |
| struct nfsd4_compoundargs *); |
| int nfs4svc_encode_compoundres(struct svc_rqst *, __be32 *, |
| struct nfsd4_compoundres *); |
| void nfsd4_encode_operation(struct nfsd4_compoundres *, struct nfsd4_op *); |
| void nfsd4_encode_replay(struct nfsd4_compoundres *resp, struct nfsd4_op *op); |
| __be32 nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp, |
| struct dentry *dentry, __be32 *buffer, int *countp, |
| u32 *bmval, struct svc_rqst *, int ignore_crossmnt); |
| extern __be32 nfsd4_setclientid(struct svc_rqst *rqstp, |
| struct nfsd4_compound_state *, |
| struct nfsd4_setclientid *setclid); |
| extern __be32 nfsd4_setclientid_confirm(struct svc_rqst *rqstp, |
| struct nfsd4_compound_state *, |
| struct nfsd4_setclientid_confirm *setclientid_confirm); |
| extern void nfsd4_store_cache_entry(struct nfsd4_compoundres *resp); |
| extern __be32 nfsd4_replay_cache_entry(struct nfsd4_compoundres *resp, |
| struct nfsd4_sequence *seq); |
| 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_compound_state *, |
| 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: |
| */ |