| /* |
| * 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) |
| |
| #define CURRENT_STATE_ID_FLAG (1<<0) |
| #define SAVED_STATE_ID_FLAG (1<<1) |
| |
| #define SET_CSTATE_FLAG(c, f) ((c)->sid_flags |= (f)) |
| #define HAS_CSTATE_FLAG(c, f) ((c)->sid_flags & (f)) |
| #define CLEAR_CSTATE_FLAG(c, f) ((c)->sid_flags &= ~(f)) |
| |
| struct nfsd4_compound_state { |
| struct svc_fh current_fh; |
| struct svc_fh save_fh; |
| struct nfs4_stateowner *replay_owner; |
| struct nfs4_client *clp; |
| /* For sessions DRC */ |
| struct nfsd4_session *session; |
| struct nfsd4_slot *slot; |
| int data_offset; |
| bool spo_must_allowed; |
| size_t iovlen; |
| u32 minorversion; |
| __be32 status; |
| stateid_t current_stateid; |
| stateid_t save_stateid; |
| /* to indicate current and saved state id presents */ |
| u32 sid_flags; |
| }; |
| |
| static inline bool nfsd4_has_session(struct nfsd4_compound_state *cs) |
| { |
| return cs->slot != NULL; |
| } |
| |
| struct nfsd4_change_info { |
| u32 atomic; |
| u64 before_change; |
| 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 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 datalen; |
| char *data; |
| struct kvec first; |
| } link; /* NF4LNK */ |
| struct { |
| u32 specdata1; |
| u32 specdata2; |
| } dev; /* NF4BLK, NF4CHR */ |
| } u; |
| u32 cr_bmval[3]; /* request */ |
| struct iattr cr_iattr; /* request */ |
| int cr_umask; /* request */ |
| struct nfsd4_change_info cr_cinfo; /* response */ |
| struct nfs4_acl *cr_acl; |
| struct xdr_netobj cr_label; |
| }; |
| #define cr_datalen u.link.datalen |
| #define cr_data u.link.data |
| #define cr_first u.link.first |
| #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 xdr_netobj ld_owner; |
| 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; |
| }; |
| #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_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 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 nfsd4_lookup { |
| u32 lo_len; /* request */ |
| char * lo_name; /* request */ |
| }; |
| |
| struct nfsd4_putfh { |
| u32 pf_fhlen; /* request */ |
| char *pf_fhval; /* request */ |
| bool no_verify; /* represents foreigh fh */ |
| }; |
| |
| struct nfsd4_getxattr { |
| char *getxa_name; /* request */ |
| u32 getxa_len; /* request */ |
| void *getxa_buf; |
| }; |
| |
| struct nfsd4_setxattr { |
| u32 setxa_flags; /* request */ |
| char *setxa_name; /* request */ |
| char *setxa_buf; /* request */ |
| u32 setxa_len; /* request */ |
| struct nfsd4_change_info setxa_cinfo; /* response */ |
| }; |
| |
| struct nfsd4_removexattr { |
| char *rmxa_name; /* request */ |
| struct nfsd4_change_info rmxa_cinfo; /* response */ |
| }; |
| |
| struct nfsd4_listxattrs { |
| u64 lsxa_cookie; /* request */ |
| u32 lsxa_maxcount; /* request */ |
| char *lsxa_buf; /* unfiltered buffer (reply) */ |
| u32 lsxa_len; /* unfiltered len (reply) */ |
| }; |
| |
| struct nfsd4_open { |
| u32 op_claim_type; /* request */ |
| u32 op_fnamelen; |
| char * op_fname; /* request - everything but CLAIM_PREV */ |
| u32 op_delegate_type; /* request - CLAIM_PREV only */ |
| stateid_t op_delegate_stateid; /* request - response */ |
| u32 op_why_no_deleg; /* response - DELEG_NONE_EXT only */ |
| u32 op_create; /* request */ |
| u32 op_createmode; /* request */ |
| int op_umask; /* request */ |
| u32 op_bmval[3]; /* request */ |
| struct iattr op_iattr; /* UNCHECKED4, GUARDED4, EXCLUSIVE4_1 */ |
| nfs4_verifier op_verf __attribute__((aligned(32))); |
| /* 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 */ |
| u32 op_deleg_want; /* request */ |
| stateid_t op_stateid; /* response */ |
| __be32 op_xdr_error; /* see nfsd4_open_omfg() */ |
| u32 op_recall; /* recall */ |
| struct nfsd4_change_info op_cinfo; /* response */ |
| u32 op_rflags; /* response */ |
| bool op_truncate; /* used during processing */ |
| bool op_created; /* used during processing */ |
| struct nfs4_openowner *op_openowner; /* used during processing */ |
| struct nfs4_file *op_file; /* used during processing */ |
| struct nfs4_ol_stateid *op_stp; /* used during processing */ |
| struct nfs4_clnt_odstate *op_odstate; /* used during processing */ |
| struct nfs4_acl *op_acl; |
| struct xdr_netobj op_label; |
| }; |
| |
| struct nfsd4_open_confirm { |
| stateid_t oc_req_stateid /* request */; |
| u32 oc_seqid /* request */; |
| stateid_t oc_resp_stateid /* response */; |
| }; |
| |
| struct nfsd4_open_downgrade { |
| stateid_t od_stateid; |
| u32 od_seqid; |
| u32 od_share_access; /* request */ |
| u32 od_deleg_want; /* request */ |
| u32 od_share_deny; /* request */ |
| }; |
| |
| |
| struct nfsd4_read { |
| stateid_t rd_stateid; /* request */ |
| u64 rd_offset; /* request */ |
| u32 rd_length; /* request */ |
| int rd_vlen; |
| struct nfsd_file *rd_nf; |
| |
| 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; |
| struct xdr_stream *xdr; |
| int cookie_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_secinfo_no_name { |
| u32 sin_style; /* request */ |
| struct svc_export *sin_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 xdr_netobj sa_label; |
| }; |
| |
| struct nfsd4_setclientid { |
| nfs4_verifier se_verf; /* request */ |
| struct xdr_netobj se_name; |
| 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; |
| }; |
| |
| struct nfsd4_test_stateid_id { |
| __be32 ts_id_status; |
| stateid_t ts_id_stateid; |
| struct list_head ts_id_list; |
| }; |
| |
| struct nfsd4_test_stateid { |
| u32 ts_num_ids; |
| struct list_head ts_stateid_list; |
| }; |
| |
| struct nfsd4_free_stateid { |
| stateid_t fr_stateid; /* request */ |
| }; |
| |
| /* 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 */ |
| struct xdr_buf wr_payload; /* request */ |
| |
| 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; |
| u32 spa_how; |
| u32 spo_must_enforce[3]; |
| u32 spo_must_allow[3]; |
| struct xdr_netobj nii_domain; |
| struct xdr_netobj nii_name; |
| struct timespec64 nii_time; |
| }; |
| |
| 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 */ |
| #endif /* not yet */ |
| u32 status_flags; /* response */ |
| }; |
| |
| struct nfsd4_destroy_session { |
| struct nfs4_sessionid sessionid; |
| }; |
| |
| struct nfsd4_destroy_clientid { |
| clientid_t clientid; |
| }; |
| |
| struct nfsd4_reclaim_complete { |
| u32 rca_one_fs; |
| }; |
| |
| struct nfsd4_deviceid { |
| u64 fsid_idx; |
| u32 generation; |
| u32 pad; |
| }; |
| |
| struct nfsd4_layout_seg { |
| u32 iomode; |
| u64 offset; |
| u64 length; |
| }; |
| |
| struct nfsd4_getdeviceinfo { |
| struct nfsd4_deviceid gd_devid; /* request */ |
| u32 gd_layout_type; /* request */ |
| u32 gd_maxcount; /* request */ |
| u32 gd_notify_types;/* request - response */ |
| void *gd_device; /* response */ |
| }; |
| |
| struct nfsd4_layoutget { |
| u64 lg_minlength; /* request */ |
| u32 lg_signal; /* request */ |
| u32 lg_layout_type; /* request */ |
| u32 lg_maxcount; /* request */ |
| stateid_t lg_sid; /* request/response */ |
| struct nfsd4_layout_seg lg_seg; /* request/response */ |
| void *lg_content; /* response */ |
| }; |
| |
| struct nfsd4_layoutcommit { |
| stateid_t lc_sid; /* request */ |
| struct nfsd4_layout_seg lc_seg; /* request */ |
| u32 lc_reclaim; /* request */ |
| u32 lc_newoffset; /* request */ |
| u64 lc_last_wr; /* request */ |
| struct timespec64 lc_mtime; /* request */ |
| u32 lc_layout_type; /* request */ |
| u32 lc_up_len; /* layout length */ |
| void *lc_up_layout; /* decoded by callback */ |
| u32 lc_size_chg; /* boolean for response */ |
| u64 lc_newsize; /* response */ |
| }; |
| |
| struct nfsd4_layoutreturn { |
| u32 lr_return_type; /* request */ |
| u32 lr_layout_type; /* request */ |
| struct nfsd4_layout_seg lr_seg; /* request */ |
| u32 lr_reclaim; /* request */ |
| u32 lrf_body_len; /* request */ |
| void *lrf_body; /* request */ |
| stateid_t lr_sid; /* request/response */ |
| u32 lrs_present; /* response */ |
| }; |
| |
| struct nfsd4_fallocate { |
| /* request */ |
| stateid_t falloc_stateid; |
| loff_t falloc_offset; |
| u64 falloc_length; |
| }; |
| |
| struct nfsd4_clone { |
| /* request */ |
| stateid_t cl_src_stateid; |
| stateid_t cl_dst_stateid; |
| u64 cl_src_pos; |
| u64 cl_dst_pos; |
| u64 cl_count; |
| }; |
| |
| struct nfsd42_write_res { |
| u64 wr_bytes_written; |
| u32 wr_stable_how; |
| nfs4_verifier wr_verifier; |
| stateid_t cb_stateid; |
| }; |
| |
| struct nfsd4_copy { |
| /* request */ |
| stateid_t cp_src_stateid; |
| stateid_t cp_dst_stateid; |
| u64 cp_src_pos; |
| u64 cp_dst_pos; |
| u64 cp_count; |
| struct nl4_server cp_src; |
| bool cp_intra; |
| |
| /* both */ |
| u32 cp_synchronous; |
| |
| /* response */ |
| struct nfsd42_write_res cp_res; |
| |
| /* for cb_offload */ |
| struct nfsd4_callback cp_cb; |
| __be32 nfserr; |
| struct knfsd_fh fh; |
| |
| struct nfs4_client *cp_clp; |
| |
| struct nfsd_file *nf_src; |
| struct nfsd_file *nf_dst; |
| |
| copy_stateid_t cp_stateid; |
| |
| struct list_head copies; |
| struct task_struct *copy_task; |
| refcount_t refcount; |
| bool stopped; |
| |
| struct vfsmount *ss_mnt; |
| struct nfs_fh c_fh; |
| nfs4_stateid stateid; |
| }; |
| |
| struct nfsd4_seek { |
| /* request */ |
| stateid_t seek_stateid; |
| loff_t seek_offset; |
| u32 seek_whence; |
| |
| /* response */ |
| u32 seek_eof; |
| loff_t seek_pos; |
| }; |
| |
| struct nfsd4_offload_status { |
| /* request */ |
| stateid_t stateid; |
| |
| /* response */ |
| u64 count; |
| u32 status; |
| }; |
| |
| struct nfsd4_copy_notify { |
| /* request */ |
| stateid_t cpn_src_stateid; |
| struct nl4_server cpn_dst; |
| |
| /* response */ |
| stateid_t cpn_cnr_stateid; |
| u64 cpn_sec; |
| u32 cpn_nsec; |
| struct nl4_server cpn_src; |
| }; |
| |
| struct nfsd4_op { |
| u32 opnum; |
| const struct nfsd4_operation * opdesc; |
| __be32 status; |
| union nfsd4_op_u { |
| 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_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 */ |
| struct xdr_stream *xdr; |
| 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 && !fhp->fh_no_atomic_attr); |
| |
| cinfo->before_change = fhp->fh_pre_change; |
| cinfo->after_change = fhp->fh_post_change; |
| } |
| |
| |
| bool nfsd4_mach_creds_match(struct nfs4_client *cl, struct svc_rqst *rqstp); |
| 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 |