| 1 | /* |
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| 2 | * include/linux/nfsd/xdr4.h |
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| 3 | * |
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| 4 | * Server-side types for NFSv4. |
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| 5 | * |
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| 6 | * Copyright (c) 2002 The Regents of the University of Michigan. |
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| 7 | * All rights reserved. |
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| 8 | * |
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| 9 | * Kendrick Smith <kmsmith@umich.edu> |
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| 10 | * Andy Adamson <andros@umich.edu> |
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| 11 | * |
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| 12 | * Redistribution and use in source and binary forms, with or without |
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| 13 | * modification, are permitted provided that the following conditions |
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| 14 | * are met: |
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| 15 | * |
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| 16 | * 1. Redistributions of source code must retain the above copyright |
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| 17 | * notice, this list of conditions and the following disclaimer. |
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| 18 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 19 | * notice, this list of conditions and the following disclaimer in the |
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| 20 | * documentation and/or other materials provided with the distribution. |
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| 21 | * 3. Neither the name of the University nor the names of its |
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| 22 | * contributors may be used to endorse or promote products derived |
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| 23 | * from this software without specific prior written permission. |
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| 24 | * |
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| 25 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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| 26 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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| 27 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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| 28 | * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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| 29 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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| 30 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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| 31 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
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| 32 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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| 33 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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| 34 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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| 35 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 36 | * |
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| 37 | */ |
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| 38 | |
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| 39 | #ifndef _LINUX_NFSD_XDR4_H |
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| 40 | #define _LINUX_NFSD_XDR4_H |
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| 41 | |
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| 42 | #include <asm/types.h> |
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| 43 | |
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| 44 | #include <linux/nfs4.h> |
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| 45 | |
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| 46 | #define NFSD4_MAX_TAGLEN 128 |
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| 47 | #define XDR_LEN(n) (((n) + 3) & ~3) |
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| 48 | |
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| 49 | struct nfsd4_change_info { |
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| 50 | __u32 atomic; |
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| 51 | __u32 before_ctime_sec; |
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| 52 | __u32 before_ctime_nsec; |
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| 53 | __u32 after_ctime_sec; |
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| 54 | __u32 after_ctime_nsec; |
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| 55 | }; |
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| 56 | |
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| 57 | struct nfsd4_access { |
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| 58 | __u32 ac_req_access; /* request */ |
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| 59 | __u32 ac_supported; /* response */ |
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| 60 | __u32 ac_resp_access; /* response */ |
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| 61 | }; |
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| 62 | |
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| 63 | struct nfsd4_close { |
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| 64 | __u32 cl_seqid; /* request */ |
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| 65 | stateid_t cl_stateid; /* request+response */ |
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| 66 | struct nfs4_stateowner * cl_stateowner; /* response */ |
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| 67 | }; |
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| 68 | |
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| 69 | struct nfsd4_commit { |
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| 70 | __u64 co_offset; /* request */ |
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| 71 | __u32 co_count; /* request */ |
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| 72 | nfs4_verifier co_verf; /* response */ |
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| 73 | }; |
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| 74 | |
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| 75 | struct nfsd4_create { |
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| 76 | __u32 cr_namelen; /* request */ |
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| 77 | char * cr_name; /* request */ |
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| 78 | __u32 cr_type; /* request */ |
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| 79 | union { /* request */ |
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| 80 | struct { |
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| 81 | __u32 namelen; |
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| 82 | char *name; |
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| 83 | } link; /* NF4LNK */ |
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| 84 | struct { |
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| 85 | __u32 specdata1; |
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| 86 | __u32 specdata2; |
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| 87 | } dev; /* NF4BLK, NF4CHR */ |
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| 88 | } u; |
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| 89 | __u32 cr_bmval[2]; /* request */ |
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| 90 | struct iattr cr_iattr; /* request */ |
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| 91 | struct nfsd4_change_info cr_cinfo; /* response */ |
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| 92 | struct nfs4_acl *cr_acl; |
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| 93 | }; |
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| 94 | #define cr_linklen u.link.namelen |
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| 95 | #define cr_linkname u.link.name |
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| 96 | #define cr_specdata1 u.dev.specdata1 |
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| 97 | #define cr_specdata2 u.dev.specdata2 |
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| 98 | |
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| 99 | struct nfsd4_delegreturn { |
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| 100 | stateid_t dr_stateid; |
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| 101 | }; |
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| 102 | |
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| 103 | struct nfsd4_getattr { |
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| 104 | __u32 ga_bmval[2]; /* request */ |
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| 105 | struct svc_fh *ga_fhp; /* response */ |
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| 106 | }; |
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| 107 | |
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| 108 | struct nfsd4_link { |
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| 109 | __u32 li_namelen; /* request */ |
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| 110 | char * li_name; /* request */ |
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| 111 | struct nfsd4_change_info li_cinfo; /* response */ |
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| 112 | }; |
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| 113 | |
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| 114 | struct nfsd4_lock_denied { |
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| 115 | clientid_t ld_clientid; |
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| 116 | struct nfs4_stateowner *ld_sop; |
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| 117 | __u64 ld_start; |
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| 118 | __u64 ld_length; |
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| 119 | __u32 ld_type; |
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| 120 | }; |
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| 121 | |
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| 122 | struct nfsd4_lock { |
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| 123 | /* request */ |
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| 124 | __u32 lk_type; |
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| 125 | __u32 lk_reclaim; /* boolean */ |
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| 126 | __u64 lk_offset; |
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| 127 | __u64 lk_length; |
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| 128 | __u32 lk_is_new; |
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| 129 | union { |
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| 130 | struct { |
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| 131 | __u32 open_seqid; |
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| 132 | stateid_t open_stateid; |
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| 133 | __u32 lock_seqid; |
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| 134 | clientid_t clientid; |
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| 135 | struct xdr_netobj owner; |
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| 136 | } new; |
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| 137 | struct { |
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| 138 | stateid_t lock_stateid; |
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| 139 | __u32 lock_seqid; |
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| 140 | } old; |
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| 141 | } v; |
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| 142 | |
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| 143 | /* response */ |
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| 144 | union { |
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| 145 | struct { |
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| 146 | stateid_t stateid; |
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| 147 | } ok; |
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| 148 | struct nfsd4_lock_denied denied; |
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| 149 | } u; |
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| 150 | |
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| 151 | struct nfs4_stateowner *lk_stateowner; |
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| 152 | }; |
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| 153 | #define lk_new_open_seqid v.new.open_seqid |
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| 154 | #define lk_new_open_stateid v.new.open_stateid |
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| 155 | #define lk_new_lock_seqid v.new.lock_seqid |
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| 156 | #define lk_new_clientid v.new.clientid |
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| 157 | #define lk_new_owner v.new.owner |
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| 158 | #define lk_old_lock_stateid v.old.lock_stateid |
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| 159 | #define lk_old_lock_seqid v.old.lock_seqid |
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| 160 | |
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| 161 | #define lk_rflags u.ok.rflags |
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| 162 | #define lk_resp_stateid u.ok.stateid |
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| 163 | #define lk_denied u.denied |
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| 164 | |
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| 165 | |
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| 166 | struct nfsd4_lockt { |
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| 167 | __u32 lt_type; |
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| 168 | clientid_t lt_clientid; |
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| 169 | struct xdr_netobj lt_owner; |
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| 170 | __u64 lt_offset; |
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| 171 | __u64 lt_length; |
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| 172 | struct nfs4_stateowner * lt_stateowner; |
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| 173 | struct nfsd4_lock_denied lt_denied; |
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| 174 | }; |
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| 175 | |
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| 176 | |
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| 177 | struct nfsd4_locku { |
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| 178 | __u32 lu_type; |
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| 179 | __u32 lu_seqid; |
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| 180 | stateid_t lu_stateid; |
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| 181 | __u64 lu_offset; |
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| 182 | __u64 lu_length; |
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| 183 | struct nfs4_stateowner *lu_stateowner; |
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| 184 | }; |
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| 185 | |
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| 186 | |
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| 187 | struct nfsd4_lookup { |
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| 188 | __u32 lo_len; /* request */ |
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| 189 | char * lo_name; /* request */ |
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| 190 | }; |
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| 191 | |
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| 192 | struct nfsd4_putfh { |
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| 193 | __u32 pf_fhlen; /* request */ |
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| 194 | char *pf_fhval; /* request */ |
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| 195 | }; |
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| 196 | |
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| 197 | struct nfsd4_open { |
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| 198 | __u32 op_claim_type; /* request */ |
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| 199 | struct xdr_netobj op_fname; /* request - everything but CLAIM_PREV */ |
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| 200 | __u32 op_delegate_type; /* request - CLAIM_PREV only */ |
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| 201 | stateid_t op_delegate_stateid; /* request - response */ |
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| 202 | __u32 op_create; /* request */ |
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| 203 | __u32 op_createmode; /* request */ |
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| 204 | __u32 op_bmval[2]; /* request */ |
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| 205 | union { /* request */ |
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| 206 | struct iattr iattr; /* UNCHECKED4,GUARDED4 */ |
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| 207 | nfs4_verifier verf; /* EXCLUSIVE4 */ |
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| 208 | } u; |
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| 209 | clientid_t op_clientid; /* request */ |
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| 210 | struct xdr_netobj op_owner; /* request */ |
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| 211 | __u32 op_seqid; /* request */ |
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| 212 | __u32 op_share_access; /* request */ |
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| 213 | __u32 op_share_deny; /* request */ |
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| 214 | stateid_t op_stateid; /* response */ |
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| 215 | struct nfsd4_change_info op_cinfo; /* response */ |
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| 216 | __u32 op_rflags; /* response */ |
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| 217 | int op_truncate; /* used during processing */ |
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| 218 | struct nfs4_stateowner *op_stateowner; /* used during processing */ |
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| 219 | struct nfs4_acl *op_acl; |
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| 220 | }; |
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| 221 | #define op_iattr u.iattr |
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| 222 | #define op_verf u.verf |
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| 223 | |
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| 224 | struct nfsd4_open_confirm { |
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| 225 | stateid_t oc_req_stateid /* request */; |
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| 226 | __u32 oc_seqid /* request */; |
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| 227 | stateid_t oc_resp_stateid /* response */; |
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| 228 | struct nfs4_stateowner * oc_stateowner; /* response */ |
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| 229 | }; |
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| 230 | |
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| 231 | struct nfsd4_open_downgrade { |
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| 232 | stateid_t od_stateid; |
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| 233 | __u32 od_seqid; |
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| 234 | __u32 od_share_access; |
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| 235 | __u32 od_share_deny; |
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| 236 | struct nfs4_stateowner *od_stateowner; |
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| 237 | }; |
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| 238 | |
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| 239 | |
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| 240 | struct nfsd4_read { |
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| 241 | stateid_t rd_stateid; /* request */ |
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| 242 | __u64 rd_offset; /* request */ |
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| 243 | __u32 rd_length; /* request */ |
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| 244 | struct kvec rd_iov[RPCSVC_MAXPAGES]; |
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| 245 | int rd_vlen; |
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| 246 | struct file *rd_filp; |
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| 247 | |
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| 248 | struct svc_rqst *rd_rqstp; /* response */ |
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| 249 | struct svc_fh * rd_fhp; /* response */ |
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| 250 | }; |
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| 251 | |
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| 252 | struct nfsd4_readdir { |
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| 253 | __u64 rd_cookie; /* request */ |
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| 254 | nfs4_verifier rd_verf; /* request */ |
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| 255 | __u32 rd_dircount; /* request */ |
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| 256 | __u32 rd_maxcount; /* request */ |
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| 257 | __u32 rd_bmval[2]; /* request */ |
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| 258 | struct svc_rqst *rd_rqstp; /* response */ |
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| 259 | struct svc_fh * rd_fhp; /* response */ |
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| 260 | |
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| 261 | struct readdir_cd common; |
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| 262 | __u32 * buffer; |
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| 263 | int buflen; |
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| 264 | __u32 * offset; |
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| 265 | }; |
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| 266 | |
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| 267 | struct nfsd4_release_lockowner { |
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| 268 | clientid_t rl_clientid; |
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| 269 | struct xdr_netobj rl_owner; |
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| 270 | }; |
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| 271 | struct nfsd4_readlink { |
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| 272 | struct svc_rqst *rl_rqstp; /* request */ |
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| 273 | struct svc_fh * rl_fhp; /* request */ |
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| 274 | }; |
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| 275 | |
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| 276 | struct nfsd4_remove { |
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| 277 | __u32 rm_namelen; /* request */ |
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| 278 | char * rm_name; /* request */ |
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| 279 | struct nfsd4_change_info rm_cinfo; /* response */ |
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| 280 | }; |
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| 281 | |
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| 282 | struct nfsd4_rename { |
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| 283 | __u32 rn_snamelen; /* request */ |
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| 284 | char * rn_sname; /* request */ |
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| 285 | __u32 rn_tnamelen; /* request */ |
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| 286 | char * rn_tname; /* request */ |
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| 287 | struct nfsd4_change_info rn_sinfo; /* response */ |
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| 288 | struct nfsd4_change_info rn_tinfo; /* response */ |
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| 289 | }; |
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| 290 | |
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| 291 | struct nfsd4_setattr { |
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| 292 | stateid_t sa_stateid; /* request */ |
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| 293 | __u32 sa_bmval[2]; /* request */ |
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| 294 | struct iattr sa_iattr; /* request */ |
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| 295 | struct nfs4_acl *sa_acl; |
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| 296 | }; |
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| 297 | |
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| 298 | struct nfsd4_setclientid { |
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| 299 | nfs4_verifier se_verf; /* request */ |
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| 300 | __u32 se_namelen; /* request */ |
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| 301 | char * se_name; /* request */ |
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| 302 | __u32 se_callback_prog; /* request */ |
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| 303 | __u32 se_callback_netid_len; /* request */ |
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| 304 | char * se_callback_netid_val; /* request */ |
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| 305 | __u32 se_callback_addr_len; /* request */ |
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| 306 | char * se_callback_addr_val; /* request */ |
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| 307 | __u32 se_callback_ident; /* request */ |
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| 308 | clientid_t se_clientid; /* response */ |
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| 309 | nfs4_verifier se_confirm; /* response */ |
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| 310 | }; |
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| 311 | |
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| 312 | struct nfsd4_setclientid_confirm { |
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| 313 | clientid_t sc_clientid; |
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| 314 | nfs4_verifier sc_confirm; |
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| 315 | }; |
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| 316 | |
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| 317 | /* also used for NVERIFY */ |
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| 318 | struct nfsd4_verify { |
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| 319 | __u32 ve_bmval[2]; /* request */ |
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| 320 | __u32 ve_attrlen; /* request */ |
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| 321 | char * ve_attrval; /* request */ |
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| 322 | }; |
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| 323 | |
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| 324 | struct nfsd4_write { |
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| 325 | stateid_t wr_stateid; /* request */ |
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| 326 | __u64 wr_offset; /* request */ |
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| 327 | __u32 wr_stable_how; /* request */ |
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| 328 | __u32 wr_buflen; /* request */ |
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| 329 | struct kvec wr_vec[RPCSVC_MAXPAGES]; /* request */ |
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| 330 | int wr_vlen; |
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| 331 | |
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| 332 | __u32 wr_bytes_written; /* response */ |
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| 333 | __u32 wr_how_written; /* response */ |
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| 334 | nfs4_verifier wr_verifier; /* response */ |
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| 335 | }; |
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| 336 | |
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| 337 | struct nfsd4_op { |
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| 338 | int opnum; |
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| 339 | int status; |
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| 340 | union { |
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| 341 | struct nfsd4_access access; |
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| 342 | struct nfsd4_close close; |
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| 343 | struct nfsd4_commit commit; |
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| 344 | struct nfsd4_create create; |
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| 345 | struct nfsd4_delegreturn delegreturn; |
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| 346 | struct nfsd4_getattr getattr; |
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| 347 | struct svc_fh * getfh; |
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| 348 | struct nfsd4_link link; |
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| 349 | struct nfsd4_lock lock; |
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| 350 | struct nfsd4_lockt lockt; |
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| 351 | struct nfsd4_locku locku; |
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| 352 | struct nfsd4_lookup lookup; |
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| 353 | struct nfsd4_verify nverify; |
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| 354 | struct nfsd4_open open; |
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| 355 | struct nfsd4_open_confirm open_confirm; |
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| 356 | struct nfsd4_open_downgrade open_downgrade; |
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| 357 | struct nfsd4_putfh putfh; |
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| 358 | struct nfsd4_read read; |
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| 359 | struct nfsd4_readdir readdir; |
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| 360 | struct nfsd4_readlink readlink; |
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| 361 | struct nfsd4_remove remove; |
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| 362 | struct nfsd4_rename rename; |
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| 363 | clientid_t renew; |
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| 364 | struct nfsd4_setattr setattr; |
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| 365 | struct nfsd4_setclientid setclientid; |
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| 366 | struct nfsd4_setclientid_confirm setclientid_confirm; |
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| 367 | struct nfsd4_verify verify; |
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| 368 | struct nfsd4_write write; |
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| 369 | struct nfsd4_release_lockowner release_lockowner; |
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| 370 | } u; |
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| 371 | struct nfs4_replay * replay; |
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| 372 | }; |
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| 373 | |
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| 374 | struct nfsd4_compoundargs { |
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| 375 | /* scratch variables for XDR decode */ |
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| 376 | __u32 * p; |
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| 377 | __u32 * end; |
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| 378 | struct page ** pagelist; |
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| 379 | int pagelen; |
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| 380 | __u32 tmp[8]; |
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| 381 | __u32 * tmpp; |
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| 382 | struct tmpbuf { |
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| 383 | struct tmpbuf *next; |
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| 384 | void (*release)(const void *); |
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| 385 | void *buf; |
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| 386 | } *to_free; |
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| 387 | |
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| 388 | struct svc_rqst *rqstp; |
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| 389 | |
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| 390 | __u32 taglen; |
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| 391 | char * tag; |
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| 392 | __u32 minorversion; |
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| 393 | __u32 opcnt; |
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| 394 | struct nfsd4_op *ops; |
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| 395 | struct nfsd4_op iops[8]; |
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| 396 | }; |
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| 397 | |
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| 398 | struct nfsd4_compoundres { |
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| 399 | /* scratch variables for XDR encode */ |
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| 400 | __u32 * p; |
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| 401 | __u32 * end; |
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| 402 | struct xdr_buf * xbuf; |
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| 403 | struct svc_rqst * rqstp; |
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| 404 | |
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| 405 | __u32 taglen; |
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| 406 | char * tag; |
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| 407 | __u32 opcnt; |
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| 408 | __u32 * tagp; /* where to encode tag and opcount */ |
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| 409 | }; |
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| 410 | |
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| 411 | #define NFS4_SVC_XDRSIZE sizeof(struct nfsd4_compoundargs) |
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| 412 | |
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| 413 | static inline void |
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| 414 | set_change_info(struct nfsd4_change_info *cinfo, struct svc_fh *fhp) |
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| 415 | { |
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| 416 | BUG_ON(!fhp->fh_pre_saved || !fhp->fh_post_saved); |
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| 417 | cinfo->atomic = 1; |
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| 418 | cinfo->before_ctime_sec = fhp->fh_pre_ctime.tv_sec; |
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| 419 | cinfo->before_ctime_nsec = fhp->fh_pre_ctime.tv_nsec; |
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| 420 | cinfo->after_ctime_sec = fhp->fh_post_ctime.tv_sec; |
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| 421 | cinfo->after_ctime_nsec = fhp->fh_post_ctime.tv_nsec; |
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| 422 | } |
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| 423 | |
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| 424 | int nfs4svc_encode_voidres(struct svc_rqst *, __u32 *, void *); |
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| 425 | int nfs4svc_decode_compoundargs(struct svc_rqst *, __u32 *, |
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| 426 | struct nfsd4_compoundargs *); |
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| 427 | int nfs4svc_encode_compoundres(struct svc_rqst *, __u32 *, |
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| 428 | struct nfsd4_compoundres *); |
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| 429 | void nfsd4_encode_operation(struct nfsd4_compoundres *, struct nfsd4_op *); |
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| 430 | void nfsd4_encode_replay(struct nfsd4_compoundres *resp, struct nfsd4_op *op); |
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| 431 | int nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp, |
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| 432 | struct dentry *dentry, __u32 *buffer, int *countp, |
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| 433 | __u32 *bmval, struct svc_rqst *); |
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| 434 | extern int nfsd4_setclientid(struct svc_rqst *rqstp, |
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| 435 | struct nfsd4_setclientid *setclid); |
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| 436 | extern int nfsd4_setclientid_confirm(struct svc_rqst *rqstp, |
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| 437 | struct nfsd4_setclientid_confirm *setclientid_confirm); |
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| 438 | extern int nfsd4_process_open1(struct nfsd4_open *open); |
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| 439 | extern int nfsd4_process_open2(struct svc_rqst *rqstp, |
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| 440 | struct svc_fh *current_fh, struct nfsd4_open *open); |
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| 441 | extern int nfsd4_open_confirm(struct svc_rqst *rqstp, |
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| 442 | struct svc_fh *current_fh, struct nfsd4_open_confirm *oc); |
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| 443 | extern int nfsd4_close(struct svc_rqst *rqstp, struct svc_fh *current_fh, |
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| 444 | struct nfsd4_close *close); |
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| 445 | extern int nfsd4_open_downgrade(struct svc_rqst *rqstp, |
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| 446 | struct svc_fh *current_fh, struct nfsd4_open_downgrade *od); |
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| 447 | extern int nfsd4_lock(struct svc_rqst *rqstp, struct svc_fh *current_fh, |
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| 448 | struct nfsd4_lock *lock); |
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| 449 | extern int nfsd4_lockt(struct svc_rqst *rqstp, struct svc_fh *current_fh, |
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| 450 | struct nfsd4_lockt *lockt); |
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| 451 | extern int nfsd4_locku(struct svc_rqst *rqstp, struct svc_fh *current_fh, |
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| 452 | struct nfsd4_locku *locku); |
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| 453 | extern int |
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| 454 | nfsd4_release_lockowner(struct svc_rqst *rqstp, |
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| 455 | struct nfsd4_release_lockowner *rlockowner); |
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| 456 | extern void nfsd4_release_compoundargs(struct nfsd4_compoundargs *); |
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| 457 | extern int nfsd4_delegreturn(struct svc_rqst *rqstp, |
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| 458 | struct svc_fh *current_fh, struct nfsd4_delegreturn *dr); |
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| 459 | #endif |
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| 460 | |
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| 461 | /* |
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| 462 | * Local variables: |
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| 463 | * c-basic-offset: 8 |
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| 464 | * End: |
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| 465 | */ |
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