| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Trond Myklebust | 19476 | 50.66% | 213 | 47.12% |
| Andy Adamson | 6274 | 16.32% | 25 | 5.53% |
| Benny Halevy | 3199 | 8.32% | 33 | 7.30% |
| Anna Schumaker | 2401 | 6.24% | 26 | 5.75% |
| Chuck Lever | 1667 | 4.34% | 35 | 7.74% |
| Weston Andros Adamson | 948 | 2.47% | 10 | 2.21% |
| Christoph Hellwig | 940 | 2.44% | 6 | 1.33% |
| Jeff Layton | 470 | 1.22% | 11 | 2.43% |
| Fred Isaman | 454 | 1.18% | 9 | 1.99% |
| David P. Quigley | 390 | 1.01% | 3 | 0.66% |
| Manoj Naik | 376 | 0.98% | 4 | 0.88% |
| Ricardo Labiaga | 333 | 0.87% | 4 | 0.88% |
| J. Bruce Fields | 296 | 0.77% | 5 | 1.11% |
| van der Linden, Frank | 171 | 0.44% | 2 | 0.44% |
| Kinglong Mee | 170 | 0.44% | 4 | 0.88% |
| Peng Tao | 159 | 0.41% | 6 | 1.33% |
| Andreas Gruenbacher | 151 | 0.39% | 3 | 0.66% |
| Alexandros Batsakis | 104 | 0.27% | 4 | 0.88% |
| Marius Aamodt Eriksen | 72 | 0.19% | 1 | 0.22% |
| Al Viro | 69 | 0.18% | 1 | 0.22% |
| Tom Haynes | 44 | 0.11% | 1 | 0.22% |
| Harvey Harrison | 42 | 0.11% | 1 | 0.22% |
| Eric W. Biedermann | 38 | 0.10% | 1 | 0.22% |
| Linus Torvalds (pre-git) | 36 | 0.09% | 10 | 2.21% |
| Olga Kornievskaia | 24 | 0.06% | 3 | 0.66% |
| Mike Sager | 19 | 0.05% | 2 | 0.44% |
| Jeffrey Mitchell | 17 | 0.04% | 1 | 0.22% |
| Roman Borisov | 17 | 0.04% | 1 | 0.22% |
| Stanislav Kinsbursky | 15 | 0.04% | 3 | 0.66% |
| David Howells | 14 | 0.04% | 2 | 0.44% |
| Frank Sorenson | 11 | 0.03% | 2 | 0.44% |
| Jim Rees | 10 | 0.03% | 1 | 0.22% |
| Donald Buczek | 8 | 0.02% | 2 | 0.44% |
| Arnd Bergmann | 4 | 0.01% | 1 | 0.22% |
| Jia-Ju Bai | 4 | 0.01% | 1 | 0.22% |
| Steve Dickson | 3 | 0.01% | 1 | 0.22% |
| Deepa Dinamani | 3 | 0.01% | 1 | 0.22% |
| Benjamin Coddington | 3 | 0.01% | 2 | 0.44% |
| Andrew Morton | 3 | 0.01% | 2 | 0.44% |
| Sachin S. Prabhu | 3 | 0.01% | 1 | 0.22% |
| Tobias Klauser | 2 | 0.01% | 1 | 0.22% |
| Pan Bian | 2 | 0.01% | 1 | 0.22% |
| Malahal Naineni | 1 | 0.00% | 1 | 0.22% |
| Kirill A. Shutemov | 1 | 0.00% | 1 | 0.22% |
| Randy Dunlap | 1 | 0.00% | 1 | 0.22% |
| Talpey, Thomas | 1 | 0.00% | 1 | 0.22% |
| Vivek Goyal | 1 | 0.00% | 1 | 0.22% |
| Dave Jones | 1 | 0.00% | 1 | 0.22% |
| Total | 38448 | 452 |
/* * fs/nfs/nfs4xdr.c * * Client-side XDR 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. */ #include <linux/param.h> #include <linux/time.h> #include <linux/mm.h> #include <linux/errno.h> #include <linux/string.h> #include <linux/in.h> #include <linux/pagemap.h> #include <linux/proc_fs.h> #include <linux/kdev_t.h> #include <linux/module.h> #include <linux/utsname.h> #include <linux/sunrpc/clnt.h> #include <linux/sunrpc/msg_prot.h> #include <linux/sunrpc/gss_api.h> #include <linux/nfs.h> #include <linux/nfs4.h> #include <linux/nfs_fs.h> #include "nfs4_fs.h" #include "nfs4trace.h" #include "internal.h" #include "nfs4idmap.h" #include "nfs4session.h" #include "pnfs.h" #include "netns.h" #define NFSDBG_FACILITY NFSDBG_XDR /* Mapping from NFS error code to "errno" error code. */ #define errno_NFSERR_IO EIO struct compound_hdr; static int nfs4_stat_to_errno(int); static void encode_layoutget(struct xdr_stream *xdr, const struct nfs4_layoutget_args *args, struct compound_hdr *hdr); static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_layoutget_res *res); /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ #ifdef DEBUG #define NFS4_MAXTAGLEN 20 #else #define NFS4_MAXTAGLEN 0 #endif /* lock,open owner id: * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) */ #define pagepad_maxsz (1) #define open_owner_id_maxsz (1 + 2 + 1 + 1 + 2) #define lock_owner_id_maxsz (1 + 1 + 4) #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) #define op_encode_hdr_maxsz (1) #define op_decode_hdr_maxsz (2) #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ (NFS4_FHSIZE >> 2)) #define decode_putfh_maxsz (op_decode_hdr_maxsz) #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) #define encode_getfh_maxsz (op_encode_hdr_maxsz) #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ ((3+NFS4_FHSIZE) >> 2)) #define nfs4_fattr_bitmap_maxsz 4 #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) #define nfstime4_maxsz (3) #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) #ifdef CONFIG_NFS_V4_SECURITY_LABEL /* PI(4 bytes) + LFS(4 bytes) + 1(for null terminator?) + MAXLABELLEN */ #define nfs4_label_maxsz (4 + 4 + 1 + XDR_QUADLEN(NFS4_MAXLABELLEN)) #else #define nfs4_label_maxsz 0 #endif /* We support only one layout type per file system */ #define decode_mdsthreshold_maxsz (1 + 1 + nfs4_fattr_bitmap_maxsz + 1 + 8) /* This is based on getfattr, which uses the most attributes: */ #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ 3*nfstime4_maxsz + \ nfs4_owner_maxsz + \ nfs4_group_maxsz + nfs4_label_maxsz + \ decode_mdsthreshold_maxsz)) #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ nfs4_fattr_value_maxsz) #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ 1 + 2 + 1 + \ nfs4_owner_maxsz + \ nfs4_group_maxsz + \ nfs4_label_maxsz + \ 1 + nfstime4_maxsz + \ 1 + nfstime4_maxsz) #define encode_savefh_maxsz (op_encode_hdr_maxsz) #define decode_savefh_maxsz (op_decode_hdr_maxsz) #define encode_restorefh_maxsz (op_encode_hdr_maxsz) #define decode_restorefh_maxsz (op_decode_hdr_maxsz) #define encode_fsinfo_maxsz (encode_getattr_maxsz) /* The 5 accounts for the PNFS attributes, and assumes that at most three * layout types will be returned. */ #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + \ nfs4_fattr_bitmap_maxsz + 1 + \ 1 /* lease time */ + \ 2 /* max filesize */ + \ 2 /* max read */ + \ 2 /* max write */ + \ nfstime4_maxsz /* time delta */ + \ 5 /* fs layout types */ + \ 1 /* layout blksize */ + \ 1 /* clone blksize */ + \ 1 /* change attr type */ + \ 1 /* xattr support */) #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) #define decode_renew_maxsz (op_decode_hdr_maxsz) #define encode_setclientid_maxsz \ (op_encode_hdr_maxsz + \ XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ /* client name */ \ 1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 1 /* sc_prog */ + \ 1 + XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 1 + XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ 1) /* sc_cb_ident */ #define decode_setclientid_maxsz \ (op_decode_hdr_maxsz + \ 2 /* clientid */ + \ XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ 1 + XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 1 + XDR_QUADLEN(RPCBIND_MAXUADDRLEN)) #define encode_setclientid_confirm_maxsz \ (op_encode_hdr_maxsz + \ 3 + (NFS4_VERIFIER_SIZE >> 2)) #define decode_setclientid_confirm_maxsz \ (op_decode_hdr_maxsz) #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) #define decode_lookup_maxsz (op_decode_hdr_maxsz) #define encode_lookupp_maxsz (op_encode_hdr_maxsz) #define decode_lookupp_maxsz (op_decode_hdr_maxsz) #define encode_share_access_maxsz \ (2) #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz) #define encode_opentype_maxsz (1 + encode_createmode_maxsz) #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) #define encode_open_maxsz (op_encode_hdr_maxsz + \ 2 + encode_share_access_maxsz + 2 + \ open_owner_id_maxsz + \ encode_opentype_maxsz + \ encode_claim_null_maxsz) #define decode_space_limit_maxsz (3) #define decode_ace_maxsz (3 + nfs4_owner_maxsz) #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ decode_space_limit_maxsz + \ decode_ace_maxsz) #define decode_change_info_maxsz (5) #define decode_open_maxsz (op_decode_hdr_maxsz + \ decode_stateid_maxsz + \ decode_change_info_maxsz + 1 + \ nfs4_fattr_bitmap_maxsz + \ decode_delegation_maxsz) #define encode_open_confirm_maxsz \ (op_encode_hdr_maxsz + \ encode_stateid_maxsz + 1) #define decode_open_confirm_maxsz \ (op_decode_hdr_maxsz + \ decode_stateid_maxsz) #define encode_open_downgrade_maxsz \ (op_encode_hdr_maxsz + \ encode_stateid_maxsz + 1 + \ encode_share_access_maxsz) #define decode_open_downgrade_maxsz \ (op_decode_hdr_maxsz + \ decode_stateid_maxsz) #define encode_close_maxsz (op_encode_hdr_maxsz + \ 1 + encode_stateid_maxsz) #define decode_close_maxsz (op_decode_hdr_maxsz + \ decode_stateid_maxsz) #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ encode_stateid_maxsz + \ encode_attrs_maxsz) #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ nfs4_fattr_bitmap_maxsz) #define encode_delegattr_maxsz (op_encode_hdr_maxsz + \ encode_stateid_maxsz + \ nfs4_fattr_bitmap_maxsz + \ 2*nfstime4_maxsz) #define decode_delegattr_maxsz (decode_setattr_maxsz) #define encode_read_maxsz (op_encode_hdr_maxsz + \ encode_stateid_maxsz + 3) #define decode_read_maxsz (op_decode_hdr_maxsz + 2 + pagepad_maxsz) #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ 2 + encode_verifier_maxsz + 5 + \ nfs4_label_maxsz) #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ decode_verifier_maxsz + pagepad_maxsz) #define encode_readlink_maxsz (op_encode_hdr_maxsz) #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1 + pagepad_maxsz) #define encode_write_maxsz (op_encode_hdr_maxsz + \ encode_stateid_maxsz + 4) #define decode_write_maxsz (op_decode_hdr_maxsz + \ 2 + decode_verifier_maxsz) #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) #define decode_commit_maxsz (op_decode_hdr_maxsz + \ decode_verifier_maxsz) #define encode_remove_maxsz (op_encode_hdr_maxsz + \ nfs4_name_maxsz) #define decode_remove_maxsz (op_decode_hdr_maxsz + \ decode_change_info_maxsz) #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 2 * nfs4_name_maxsz) #define decode_rename_maxsz (op_decode_hdr_maxsz + \ decode_change_info_maxsz + \ decode_change_info_maxsz) #define encode_link_maxsz (op_encode_hdr_maxsz + \ nfs4_name_maxsz) #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) #define encode_lockowner_maxsz (7) #define encode_lock_maxsz (op_encode_hdr_maxsz + \ 7 + \ 1 + encode_stateid_maxsz + 1 + \ encode_lockowner_maxsz) #define decode_lock_denied_maxsz \ (8 + decode_lockowner_maxsz) #define decode_lock_maxsz (op_decode_hdr_maxsz + \ decode_lock_denied_maxsz) #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \ encode_lockowner_maxsz) #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ decode_lock_denied_maxsz) #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ encode_stateid_maxsz + \ 4) #define decode_locku_maxsz (op_decode_hdr_maxsz + \ decode_stateid_maxsz) #define encode_release_lockowner_maxsz \ (op_encode_hdr_maxsz + \ encode_lockowner_maxsz) #define decode_release_lockowner_maxsz \ (op_decode_hdr_maxsz) #define encode_access_maxsz (op_encode_hdr_maxsz + 1) #define decode_access_maxsz (op_decode_hdr_maxsz + 2) #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 1 + nfs4_name_maxsz + \ 1 + \ nfs4_fattr_maxsz) #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) #define encode_create_maxsz (op_encode_hdr_maxsz + \ 1 + 2 + nfs4_name_maxsz + \ encode_attrs_maxsz) #define decode_create_maxsz (op_decode_hdr_maxsz + \ decode_change_info_maxsz + \ nfs4_fattr_bitmap_maxsz) #define encode_statfs_maxsz (encode_getattr_maxsz) #define decode_statfs_maxsz (decode_getattr_maxsz) #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) #define encode_getacl_maxsz (encode_getattr_maxsz) #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ nfs4_fattr_bitmap_maxsz + 1 + pagepad_maxsz) #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ encode_stateid_maxsz + 3) #define decode_setacl_maxsz (decode_setattr_maxsz) #define encode_fs_locations_maxsz \ (encode_getattr_maxsz) #define decode_fs_locations_maxsz \ (pagepad_maxsz) #define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) #define decode_secinfo_maxsz (op_decode_hdr_maxsz + 1 + ((NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN)) / 4)) #if defined(CONFIG_NFS_V4_1) #define NFS4_MAX_MACHINE_NAME_LEN (64) #define IMPL_NAME_LIMIT (sizeof(utsname()->sysname) + sizeof(utsname()->release) + \ sizeof(utsname()->version) + sizeof(utsname()->machine) + 8) #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ encode_verifier_maxsz + \ 1 /* co_ownerid.len */ + \ /* eia_clientowner */ \ 1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 1 /* flags */ + \ 1 /* spa_how */ + \ /* max is SP4_MACH_CRED (for now) */ + \ 1 + NFS4_OP_MAP_NUM_WORDS + \ 1 + NFS4_OP_MAP_NUM_WORDS + \ 1 /* implementation id array of size 1 */ + \ 1 /* nii_domain */ + \ XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 1 /* nii_name */ + \ XDR_QUADLEN(IMPL_NAME_LIMIT) + \ 3 /* nii_date */) #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ 2 /* eir_clientid */ + \ 1 /* eir_sequenceid */ + \ 1 /* eir_flags */ + \ 1 /* spr_how */ + \ /* max is SP4_MACH_CRED (for now) */ + \ 1 + NFS4_OP_MAP_NUM_WORDS + \ 1 + NFS4_OP_MAP_NUM_WORDS + \ 2 /* eir_server_owner.so_minor_id */ + \ /* eir_server_owner.so_major_id<> */ \ XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ /* eir_server_scope<> */ \ XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 1 /* eir_server_impl_id array length */ + \ 1 /* nii_domain */ + \ XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 1 /* nii_name */ + \ XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 3 /* nii_date */) #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) #define decode_channel_attrs_maxsz (6 + \ 1 /* ca_rdma_ird.len */ + \ 1 /* ca_rdma_ird */) #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ 2 /* csa_clientid */ + \ 1 /* csa_sequence */ + \ 1 /* csa_flags */ + \ encode_channel_attrs_maxsz + \ encode_channel_attrs_maxsz + \ 1 /* csa_cb_program */ + \ 1 /* csa_sec_parms.len (1) */ + \ 1 /* cb_secflavor (AUTH_SYS) */ + \ 1 /* stamp */ + \ 1 /* machinename.len */ + \ XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ 1 /* uid */ + \ 1 /* gid */ + \ 1 /* gids.len (0) */) #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 1 /* csr_sequence */ + \ 1 /* csr_flags */ + \ decode_channel_attrs_maxsz + \ decode_channel_attrs_maxsz) #define encode_bind_conn_to_session_maxsz (op_encode_hdr_maxsz + \ /* bctsa_sessid */ \ XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 1 /* bctsa_dir */ + \ 1 /* bctsa_use_conn_in_rdma_mode */) #define decode_bind_conn_to_session_maxsz (op_decode_hdr_maxsz + \ /* bctsr_sessid */ \ XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 1 /* bctsr_dir */ + \ 1 /* bctsr_use_conn_in_rdma_mode */) #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) #define encode_destroy_clientid_maxsz (op_encode_hdr_maxsz + 2) #define decode_destroy_clientid_maxsz (op_decode_hdr_maxsz) #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4) #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4) #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + \ XDR_QUADLEN(NFS4_DEVICEID4_SIZE) + \ 1 /* layout type */ + \ 1 /* maxcount */ + \ 1 /* bitmap size */ + \ 1 /* notification bitmap length */ + \ 1 /* notification bitmap, word 0 */) #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \ 1 /* layout type */ + \ 1 /* opaque devaddr4 length */ + \ /* devaddr4 payload is read into page */ \ 1 /* notification bitmap length */ + \ 1 /* notification bitmap, word 0 */ + \ pagepad_maxsz /* possible XDR padding */) #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \ encode_stateid_maxsz) #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \ decode_stateid_maxsz + \ XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE) + \ pagepad_maxsz) #define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \ 2 /* offset */ + \ 2 /* length */ + \ 1 /* reclaim */ + \ encode_stateid_maxsz + \ 1 /* new offset (true) */ + \ 2 /* last byte written */ + \ 1 /* nt_timechanged (false) */ + \ 1 /* layoutupdate4 layout type */ + \ 1 /* layoutupdate4 opaqueue len */) /* the actual content of layoutupdate4 should be allocated by drivers and spliced in using xdr_write_pages */ #define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3) #define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \ encode_stateid_maxsz + \ 1 + \ XDR_QUADLEN(NFS4_OPAQUE_LIMIT)) #define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \ 1 + decode_stateid_maxsz) #define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1) #define decode_secinfo_no_name_maxsz decode_secinfo_maxsz #define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \ XDR_QUADLEN(NFS4_STATEID_SIZE)) #define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1) #define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \ XDR_QUADLEN(NFS4_STATEID_SIZE)) #define decode_free_stateid_maxsz (op_decode_hdr_maxsz) #else /* CONFIG_NFS_V4_1 */ #define encode_sequence_maxsz 0 #define decode_sequence_maxsz 0 #define encode_layoutreturn_maxsz 0 #define decode_layoutreturn_maxsz 0 #define encode_layoutget_maxsz 0 #define decode_layoutget_maxsz 0 #endif /* CONFIG_NFS_V4_1 */ #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_read_maxsz) #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_read_maxsz) #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_readlink_maxsz) #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_readlink_maxsz) #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_readdir_maxsz) #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_readdir_maxsz) #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_write_maxsz + \ encode_getattr_maxsz) #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_write_maxsz + \ decode_getattr_maxsz) #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_commit_maxsz) #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_commit_maxsz) #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_open_maxsz + \ encode_access_maxsz + \ encode_getfh_maxsz + \ encode_getattr_maxsz + \ encode_layoutget_maxsz) #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_open_maxsz + \ decode_access_maxsz + \ decode_getfh_maxsz + \ decode_getattr_maxsz + \ decode_layoutget_maxsz) #define NFS4_enc_open_confirm_sz \ (compound_encode_hdr_maxsz + \ encode_putfh_maxsz + \ encode_open_confirm_maxsz) #define NFS4_dec_open_confirm_sz \ (compound_decode_hdr_maxsz + \ decode_putfh_maxsz + \ decode_open_confirm_maxsz) #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_open_maxsz + \ encode_access_maxsz + \ encode_getattr_maxsz + \ encode_layoutget_maxsz) #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_open_maxsz + \ decode_access_maxsz + \ decode_getattr_maxsz + \ decode_layoutget_maxsz) #define NFS4_enc_open_downgrade_sz \ (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_layoutreturn_maxsz + \ encode_open_downgrade_maxsz) #define NFS4_dec_open_downgrade_sz \ (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_layoutreturn_maxsz + \ decode_open_downgrade_maxsz) #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_layoutreturn_maxsz + \ encode_close_maxsz + \ encode_getattr_maxsz) #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_layoutreturn_maxsz + \ decode_close_maxsz + \ decode_getattr_maxsz) #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_setattr_maxsz + \ encode_getattr_maxsz) #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_setattr_maxsz + \ decode_getattr_maxsz) #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_fsinfo_maxsz) #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_fsinfo_maxsz) #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ encode_renew_maxsz) #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ decode_renew_maxsz) #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ encode_setclientid_maxsz) #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ decode_setclientid_maxsz) #define NFS4_enc_setclientid_confirm_sz \ (compound_encode_hdr_maxsz + \ encode_setclientid_confirm_maxsz) #define NFS4_dec_setclientid_confirm_sz \ (compound_decode_hdr_maxsz + \ decode_setclientid_confirm_maxsz) #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_lock_maxsz) #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_lock_maxsz) #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_lockt_maxsz) #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_lockt_maxsz) #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_locku_maxsz) #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_locku_maxsz) #define NFS4_enc_release_lockowner_sz \ (compound_encode_hdr_maxsz + \ encode_lockowner_maxsz) #define NFS4_dec_release_lockowner_sz \ (compound_decode_hdr_maxsz + \ decode_lockowner_maxsz) #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_access_maxsz + \ encode_getattr_maxsz) #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_access_maxsz + \ decode_getattr_maxsz) #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_getattr_maxsz + \ encode_renew_maxsz) #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_getattr_maxsz + \ decode_renew_maxsz) #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_lookup_maxsz + \ encode_getattr_maxsz + \ encode_getfh_maxsz) #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_lookup_maxsz + \ decode_getattr_maxsz + \ decode_getfh_maxsz) #define NFS4_enc_lookupp_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_lookupp_maxsz + \ encode_getattr_maxsz + \ encode_getfh_maxsz) #define NFS4_dec_lookupp_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_lookupp_maxsz + \ decode_getattr_maxsz + \ decode_getfh_maxsz) #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putrootfh_maxsz + \ encode_getattr_maxsz + \ encode_getfh_maxsz) #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putrootfh_maxsz + \ decode_getattr_maxsz + \ decode_getfh_maxsz) #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_remove_maxsz) #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_remove_maxsz) #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_savefh_maxsz + \ encode_putfh_maxsz + \ encode_rename_maxsz) #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_savefh_maxsz + \ decode_putfh_maxsz + \ decode_rename_maxsz) #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_savefh_maxsz + \ encode_putfh_maxsz + \ encode_link_maxsz + \ encode_restorefh_maxsz + \ encode_getattr_maxsz) #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_savefh_maxsz + \ decode_putfh_maxsz + \ decode_link_maxsz + \ decode_restorefh_maxsz + \ decode_getattr_maxsz) #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_symlink_maxsz + \ encode_getattr_maxsz + \ encode_getfh_maxsz) #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_symlink_maxsz + \ decode_getattr_maxsz + \ decode_getfh_maxsz) #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_create_maxsz + \ encode_getfh_maxsz + \ encode_getattr_maxsz) #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_create_maxsz + \ decode_getfh_maxsz + \ decode_getattr_maxsz) #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_getattr_maxsz) #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_getattr_maxsz) #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_statfs_maxsz) #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_statfs_maxsz) #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_getattr_maxsz) #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_getattr_maxsz) #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_layoutreturn_maxsz + \ encode_delegattr_maxsz + \ encode_delegreturn_maxsz + \ encode_getattr_maxsz) #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_layoutreturn_maxsz + \ decode_delegattr_maxsz + \ decode_delegreturn_maxsz + \ decode_getattr_maxsz) #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_getacl_maxsz) #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_getacl_maxsz) #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_setacl_maxsz) #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_setacl_maxsz) #define NFS4_enc_fs_locations_sz \ (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_lookup_maxsz + \ encode_fs_locations_maxsz + \ encode_renew_maxsz) #define NFS4_dec_fs_locations_sz \ (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_lookup_maxsz + \ decode_fs_locations_maxsz + \ decode_renew_maxsz) #define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_secinfo_maxsz) #define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_secinfo_maxsz) #define NFS4_enc_fsid_present_sz \ (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_getfh_maxsz + \ encode_renew_maxsz) #define NFS4_dec_fsid_present_sz \ (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_getfh_maxsz + \ decode_renew_maxsz) #if defined(CONFIG_NFS_V4_1) #define NFS4_enc_bind_conn_to_session_sz \ (compound_encode_hdr_maxsz + \ encode_bind_conn_to_session_maxsz) #define NFS4_dec_bind_conn_to_session_sz \ (compound_decode_hdr_maxsz + \ decode_bind_conn_to_session_maxsz) #define NFS4_enc_exchange_id_sz \ (compound_encode_hdr_maxsz + \ encode_exchange_id_maxsz) #define NFS4_dec_exchange_id_sz \ (compound_decode_hdr_maxsz + \ decode_exchange_id_maxsz) #define NFS4_enc_create_session_sz \ (compound_encode_hdr_maxsz + \ encode_create_session_maxsz) #define NFS4_dec_create_session_sz \ (compound_decode_hdr_maxsz + \ decode_create_session_maxsz) #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ encode_destroy_session_maxsz) #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ decode_destroy_session_maxsz) #define NFS4_enc_destroy_clientid_sz (compound_encode_hdr_maxsz + \ encode_destroy_clientid_maxsz) #define NFS4_dec_destroy_clientid_sz (compound_decode_hdr_maxsz + \ decode_destroy_clientid_maxsz) #define NFS4_enc_sequence_sz \ (compound_decode_hdr_maxsz + \ encode_sequence_maxsz) #define NFS4_dec_sequence_sz \ (compound_decode_hdr_maxsz + \ decode_sequence_maxsz) #endif #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putrootfh_maxsz + \ encode_fsinfo_maxsz) #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putrootfh_maxsz + \ decode_fsinfo_maxsz) #if defined(CONFIG_NFS_V4_1) #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_reclaim_complete_maxsz) #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_reclaim_complete_maxsz) #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz +\ encode_getdeviceinfo_maxsz) #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_getdeviceinfo_maxsz) #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_layoutget_maxsz) #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_layoutget_maxsz) #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz +\ encode_putfh_maxsz + \ encode_layoutcommit_maxsz + \ encode_getattr_maxsz) #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_layoutcommit_maxsz + \ decode_getattr_maxsz) #define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_layoutreturn_maxsz) #define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_layoutreturn_maxsz) #define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putrootfh_maxsz +\ encode_secinfo_no_name_maxsz) #define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putrootfh_maxsz + \ decode_secinfo_no_name_maxsz) #define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_test_stateid_maxsz) #define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_test_stateid_maxsz) #define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_free_stateid_maxsz) #define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_free_stateid_maxsz) const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + compound_encode_hdr_maxsz + encode_sequence_maxsz + encode_putfh_maxsz + encode_getattr_maxsz) * XDR_UNIT); const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + compound_decode_hdr_maxsz + decode_sequence_maxsz + decode_putfh_maxsz) * XDR_UNIT); const u32 nfs41_maxgetdevinfo_overhead = ((RPC_MAX_REPHEADER_WITH_AUTH + compound_decode_hdr_maxsz + decode_sequence_maxsz) * XDR_UNIT); EXPORT_SYMBOL_GPL(nfs41_maxgetdevinfo_overhead); #endif /* CONFIG_NFS_V4_1 */ static const umode_t nfs_type2fmt[] = { [NF4BAD] = 0, [NF4REG] = S_IFREG, [NF4DIR] = S_IFDIR, [NF4BLK] = S_IFBLK, [NF4CHR] = S_IFCHR, [NF4LNK] = S_IFLNK, [NF4SOCK] = S_IFSOCK, [NF4FIFO] = S_IFIFO, [NF4ATTRDIR] = 0, [NF4NAMEDATTR] = 0, }; struct compound_hdr { int32_t status; uint32_t nops; __be32 * nops_p; uint32_t taglen; char * tag; uint32_t replen; /* expected reply words */ u32 minorversion; }; static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) { __be32 *p = xdr_reserve_space(xdr, nbytes); BUG_ON(!p); return p; } static void encode_opaque_fixed(struct xdr_stream *xdr, const void *buf, size_t len) { WARN_ON_ONCE(xdr_stream_encode_opaque_fixed(xdr, buf, len) < 0); } static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) { WARN_ON_ONCE(xdr_stream_encode_opaque(xdr, str, len) < 0); } static void encode_uint32(struct xdr_stream *xdr, u32 n) { WARN_ON_ONCE(xdr_stream_encode_u32(xdr, n) < 0); } static void encode_uint64(struct xdr_stream *xdr, u64 n) { WARN_ON_ONCE(xdr_stream_encode_u64(xdr, n) < 0); } static ssize_t xdr_encode_bitmap4(struct xdr_stream *xdr, const __u32 *bitmap, size_t len) { ssize_t ret; /* Trim empty words */ while (len > 0 && bitmap[len-1] == 0) len--; ret = xdr_stream_encode_uint32_array(xdr, bitmap, len); if (WARN_ON_ONCE(ret < 0)) return ret; return len; } static size_t mask_bitmap4(const __u32 *bitmap, const __u32 *mask, __u32 *res, size_t len) { size_t i; __u32 tmp; while (len > 0 && (bitmap[len-1] == 0 || mask[len-1] == 0)) len--; for (i = len; i-- > 0;) { tmp = bitmap[i] & mask[i]; res[i] = tmp; } return len; } static void encode_nfs4_seqid(struct xdr_stream *xdr, const struct nfs_seqid *seqid) { if (seqid != NULL) encode_uint32(xdr, seqid->sequence->counter); else encode_uint32(xdr, 0); } static void encode_compound_hdr(struct xdr_stream *xdr, struct rpc_rqst *req, struct compound_hdr *hdr) { __be32 *p; /* initialize running count of expected bytes in reply. * NOTE: the replied tag SHOULD be the same is the one sent, * but this is not required as a MUST for the server to do so. */ hdr->replen = 3 + hdr->taglen; WARN_ON_ONCE(hdr->taglen > NFS4_MAXTAGLEN); encode_string(xdr, hdr->taglen, hdr->tag); p = reserve_space(xdr, 8); *p++ = cpu_to_be32(hdr->minorversion); hdr->nops_p = p; *p = cpu_to_be32(hdr->nops); } static void encode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 op, uint32_t replen, struct compound_hdr *hdr) { encode_uint32(xdr, op); hdr->nops++; hdr->replen += replen; } static void encode_nops(struct compound_hdr *hdr) { WARN_ON_ONCE(hdr->nops > NFS4_MAX_OPS); *hdr->nops_p = htonl(hdr->nops); } static void encode_nfs4_stateid(struct xdr_stream *xdr, const nfs4_stateid *stateid) { encode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE); } static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) { encode_opaque_fixed(xdr, verf->data, NFS4_VERIFIER_SIZE); } static __be32 * xdr_encode_nfstime4(__be32 *p, const struct timespec64 *t) { p = xdr_encode_hyper(p, t->tv_sec); *p++ = cpu_to_be32(t->tv_nsec); return p; } static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs4_label *label, const umode_t *umask, const struct nfs_server *server, const uint32_t attrmask[]) { char owner_name[IDMAP_NAMESZ]; char owner_group[IDMAP_NAMESZ]; int owner_namelen = 0; int owner_grouplen = 0; __be32 *p; uint32_t len = 0; uint32_t bmval[3] = { 0 }; /* * We reserve enough space to write the entire attribute buffer at once. */ if ((iap->ia_valid & ATTR_SIZE) && (attrmask[0] & FATTR4_WORD0_SIZE)) { bmval[0] |= FATTR4_WORD0_SIZE; len += 8; } if (iap->ia_valid & ATTR_MODE) { if (umask && (attrmask[2] & FATTR4_WORD2_MODE_UMASK)) { bmval[2] |= FATTR4_WORD2_MODE_UMASK; len += 8; } else if (attrmask[1] & FATTR4_WORD1_MODE) { bmval[1] |= FATTR4_WORD1_MODE; len += 4; } } if ((iap->ia_valid & ATTR_UID) && (attrmask[1] & FATTR4_WORD1_OWNER)) { owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ); if (owner_namelen < 0) { dprintk("nfs: couldn't resolve uid %d to string\n", from_kuid(&init_user_ns, iap->ia_uid)); /* XXX */ strcpy(owner_name, "nobody"); owner_namelen = sizeof("nobody") - 1; /* goto out; */ } bmval[1] |= FATTR4_WORD1_OWNER; len += 4 + (XDR_QUADLEN(owner_namelen) << 2); } if ((iap->ia_valid & ATTR_GID) && (attrmask[1] & FATTR4_WORD1_OWNER_GROUP)) { owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ); if (owner_grouplen < 0) { dprintk("nfs: couldn't resolve gid %d to string\n", from_kgid(&init_user_ns, iap->ia_gid)); strcpy(owner_group, "nobody"); owner_grouplen = sizeof("nobody") - 1; /* goto out; */ } bmval[1] |= FATTR4_WORD1_OWNER_GROUP; len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); } if (attrmask[1] & FATTR4_WORD1_TIME_ACCESS_SET) { if (iap->ia_valid & ATTR_ATIME_SET) { bmval[1] |= FATTR4_WORD1_TIME_ACCESS_SET; len += 4 + (nfstime4_maxsz << 2); } else if (iap->ia_valid & ATTR_ATIME) { bmval[1] |= FATTR4_WORD1_TIME_ACCESS_SET; len += 4; } } if (attrmask[1] & FATTR4_WORD1_TIME_MODIFY_SET) { if (iap->ia_valid & ATTR_MTIME_SET) { bmval[1] |= FATTR4_WORD1_TIME_MODIFY_SET; len += 4 + (nfstime4_maxsz << 2); } else if (iap->ia_valid & ATTR_MTIME) { bmval[1] |= FATTR4_WORD1_TIME_MODIFY_SET; len += 4; } } if (label && (attrmask[2] & FATTR4_WORD2_SECURITY_LABEL)) { len += 4 + 4 + 4 + (XDR_QUADLEN(label->len) << 2); bmval[2] |= FATTR4_WORD2_SECURITY_LABEL; } xdr_encode_bitmap4(xdr, bmval, ARRAY_SIZE(bmval)); xdr_stream_encode_opaque_inline(xdr, (void **)&p, len); if (bmval[0] & FATTR4_WORD0_SIZE) p = xdr_encode_hyper(p, iap->ia_size); if (bmval[1] & FATTR4_WORD1_MODE) *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); if (bmval[1] & FATTR4_WORD1_OWNER) p = xdr_encode_opaque(p, owner_name, owner_namelen); if (bmval[1] & FATTR4_WORD1_OWNER_GROUP) p = xdr_encode_opaque(p, owner_group, owner_grouplen); if (bmval[1] & FATTR4_WORD1_TIME_ACCESS_SET) { if (iap->ia_valid & ATTR_ATIME_SET) { *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); p = xdr_encode_nfstime4(p, &iap->ia_atime); } else *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); } if (bmval[1] & FATTR4_WORD1_TIME_MODIFY_SET) { if (iap->ia_valid & ATTR_MTIME_SET) { *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); p = xdr_encode_nfstime4(p, &iap->ia_mtime); } else *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); } if (label && (bmval[2] & FATTR4_WORD2_SECURITY_LABEL)) { *p++ = cpu_to_be32(label->lfs); *p++ = cpu_to_be32(label->pi); *p++ = cpu_to_be32(label->len); p = xdr_encode_opaque_fixed(p, label->label, label->len); } if (bmval[2] & FATTR4_WORD2_MODE_UMASK) { *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); *p++ = cpu_to_be32(*umask); } /* out: */ } static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_ACCESS, decode_access_maxsz, hdr); encode_uint32(xdr, access); } static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_CLOSE, decode_close_maxsz, hdr); encode_nfs4_seqid(xdr, arg->seqid); encode_nfs4_stateid(xdr, &arg->stateid); } static void encode_commit(struct xdr_stream *xdr, const struct nfs_commitargs *args, struct compound_hdr *hdr) { __be32 *p; encode_op_hdr(xdr, OP_COMMIT, decode_commit_maxsz, hdr); p = reserve_space(xdr, 12); p = xdr_encode_hyper(p, args->offset); *p = cpu_to_be32(args->count); } static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) { __be32 *p; encode_op_hdr(xdr, OP_CREATE, decode_create_maxsz, hdr); encode_uint32(xdr, create->ftype); switch (create->ftype) { case NF4LNK: p = reserve_space(xdr, 4); *p = cpu_to_be32(create->u.symlink.len); xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); xdr->buf->flags |= XDRBUF_WRITE; break; case NF4BLK: case NF4CHR: p = reserve_space(xdr, 8); *p++ = cpu_to_be32(create->u.device.specdata1); *p = cpu_to_be32(create->u.device.specdata2); break; default: break; } encode_string(xdr, create->name->len, create->name->name); encode_attrs(xdr, create->attrs, create->label, &create->umask, create->server, create->server->attr_bitmask); } static void encode_getattr(struct xdr_stream *xdr, const __u32 *bitmap, const __u32 *mask, size_t len, struct compound_hdr *hdr) { __u32 masked_bitmap[nfs4_fattr_bitmap_maxsz]; encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); if (mask) { if (WARN_ON_ONCE(len > ARRAY_SIZE(masked_bitmap))) len = ARRAY_SIZE(masked_bitmap); len = mask_bitmap4(bitmap, mask, masked_bitmap, len); bitmap = masked_bitmap; } xdr_encode_bitmap4(xdr, bitmap, len); } static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) { encode_getattr(xdr, nfs4_fattr_bitmap, bitmask, ARRAY_SIZE(nfs4_fattr_bitmap), hdr); } static void encode_getfattr_open(struct xdr_stream *xdr, const u32 *bitmask, const u32 *open_bitmap, struct compound_hdr *hdr) { encode_getattr(xdr, open_bitmap, bitmask, 3, hdr); } static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) { encode_getattr(xdr, nfs4_fsinfo_bitmap, bitmask, ARRAY_SIZE(nfs4_fsinfo_bitmap), hdr); } static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) { encode_getattr(xdr, nfs4_fs_locations_bitmap, bitmask, ARRAY_SIZE(nfs4_fs_locations_bitmap), hdr); } static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_GETFH, decode_getfh_maxsz, hdr); } static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_LINK, decode_link_maxsz, hdr); encode_string(xdr, name->len, name->name); } static inline int nfs4_lock_type(struct file_lock *fl, int block) { if (lock_is_read(fl)) return block ? NFS4_READW_LT : NFS4_READ_LT; return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; } static inline uint64_t nfs4_lock_length(struct file_lock *fl) { if (fl->fl_end == OFFSET_MAX) return ~(uint64_t)0; return fl->fl_end - fl->fl_start + 1; } static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner) { __be32 *p; p = reserve_space(xdr, 32); p = xdr_encode_hyper(p, lowner->clientid); *p++ = cpu_to_be32(20); p = xdr_encode_opaque_fixed(p, "lock id:", 8); *p++ = cpu_to_be32(lowner->s_dev); xdr_encode_hyper(p, lowner->id); } /* * opcode,type,reclaim,offset,length,new_lock_owner = 32 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 */ static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) { __be32 *p; encode_op_hdr(xdr, OP_LOCK, decode_lock_maxsz, hdr); p = reserve_space(xdr, 28); *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); *p++ = cpu_to_be32(args->reclaim); p = xdr_encode_hyper(p, args->fl->fl_start); p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); *p = cpu_to_be32(args->new_lock_owner); if (args->new_lock_owner){ encode_nfs4_seqid(xdr, args->open_seqid); encode_nfs4_stateid(xdr, &args->open_stateid); encode_nfs4_seqid(xdr, args->lock_seqid); encode_lockowner(xdr, &args->lock_owner); } else { encode_nfs4_stateid(xdr, &args->lock_stateid); encode_nfs4_seqid(xdr, args->lock_seqid); } } static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) { __be32 *p; encode_op_hdr(xdr, OP_LOCKT, decode_lockt_maxsz, hdr); p = reserve_space(xdr, 20); *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); p = xdr_encode_hyper(p, args->fl->fl_start); p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); encode_lockowner(xdr, &args->lock_owner); } static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) { __be32 *p; encode_op_hdr(xdr, OP_LOCKU, decode_locku_maxsz, hdr); encode_uint32(xdr, nfs4_lock_type(args->fl, 0)); encode_nfs4_seqid(xdr, args->seqid); encode_nfs4_stateid(xdr, &args->stateid); p = reserve_space(xdr, 16); p = xdr_encode_hyper(p, args->fl->fl_start); xdr_encode_hyper(p, nfs4_lock_length(args->fl)); } static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_RELEASE_LOCKOWNER, decode_release_lockowner_maxsz, hdr); encode_lockowner(xdr, lowner); } static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_LOOKUP, decode_lookup_maxsz, hdr); encode_string(xdr, name->len, name->name); } static void encode_lookupp(struct xdr_stream *xdr, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_LOOKUPP, decode_lookupp_maxsz, hdr); } static void encode_share_access(struct xdr_stream *xdr, u32 share_access) { __be32 *p; p = reserve_space(xdr, 8); *p++ = cpu_to_be32(share_access); *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ } static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) { __be32 *p; /* * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, * owner 4 = 32 */ encode_nfs4_seqid(xdr, arg->seqid); encode_share_access(xdr, arg->share_access); p = reserve_space(xdr, 36); p = xdr_encode_hyper(p, arg->clientid); *p++ = cpu_to_be32(24); p = xdr_encode_opaque_fixed(p, "open id:", 8); *p++ = cpu_to_be32(arg->server->s_dev); *p++ = cpu_to_be32(arg->id.uniquifier); xdr_encode_hyper(p, arg->id.create_time); } static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) { __be32 *p; p = reserve_space(xdr, 4); switch(arg->createmode) { case NFS4_CREATE_UNCHECKED: *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); encode_attrs(xdr, arg->u.attrs, arg->label, &arg->umask, arg->server, arg->server->attr_bitmask); break; case NFS4_CREATE_GUARDED: *p = cpu_to_be32(NFS4_CREATE_GUARDED); encode_attrs(xdr, arg->u.attrs, arg->label, &arg->umask, arg->server, arg->server->attr_bitmask); break; case NFS4_CREATE_EXCLUSIVE: *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); encode_nfs4_verifier(xdr, &arg->u.verifier); break; case NFS4_CREATE_EXCLUSIVE4_1: *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); encode_nfs4_verifier(xdr, &arg->u.verifier); encode_attrs(xdr, arg->u.attrs, arg->label, &arg->umask, arg->server, arg->server->exclcreat_bitmask); } } static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) { __be32 *p; p = reserve_space(xdr, 4); switch (arg->open_flags & O_CREAT) { case 0: *p = cpu_to_be32(NFS4_OPEN_NOCREATE); break; default: *p = cpu_to_be32(NFS4_OPEN_CREATE); encode_createmode(xdr, arg); } } static inline void encode_delegation_type(struct xdr_stream *xdr, u32 delegation_type) { __be32 *p; p = reserve_space(xdr, 4); switch (delegation_type) { case NFS4_OPEN_DELEGATE_NONE: case NFS4_OPEN_DELEGATE_READ: case NFS4_OPEN_DELEGATE_WRITE: case NFS4_OPEN_DELEGATE_READ_ATTRS_DELEG: case NFS4_OPEN_DELEGATE_WRITE_ATTRS_DELEG: *p = cpu_to_be32(delegation_type); break; default: BUG(); } } static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) { __be32 *p; p = reserve_space(xdr, 4); *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); encode_string(xdr, name->len, name->name); } static inline void encode_claim_previous(struct xdr_stream *xdr, u32 type) { __be32 *p; p = reserve_space(xdr, 4); *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); encode_delegation_type(xdr, type); } static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) { __be32 *p; p = reserve_space(xdr, 4); *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); encode_nfs4_stateid(xdr, stateid); encode_string(xdr, name->len, name->name); } static inline void encode_claim_fh(struct xdr_stream *xdr) { __be32 *p; p = reserve_space(xdr, 4); *p = cpu_to_be32(NFS4_OPEN_CLAIM_FH); } static inline void encode_claim_delegate_cur_fh(struct xdr_stream *xdr, const nfs4_stateid *stateid) { __be32 *p; p = reserve_space(xdr, 4); *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEG_CUR_FH); encode_nfs4_stateid(xdr, stateid); } static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_OPEN, decode_open_maxsz, hdr); encode_openhdr(xdr, arg); encode_opentype(xdr, arg); switch (arg->claim) { case NFS4_OPEN_CLAIM_NULL: encode_claim_null(xdr, arg->name); break; case NFS4_OPEN_CLAIM_PREVIOUS: encode_claim_previous(xdr, arg->u.delegation_type); break; case NFS4_OPEN_CLAIM_DELEGATE_CUR: encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); break; case NFS4_OPEN_CLAIM_FH: encode_claim_fh(xdr); break; case NFS4_OPEN_CLAIM_DELEG_CUR_FH: encode_claim_delegate_cur_fh(xdr, &arg->u.delegation); break; default: BUG(); } } static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_OPEN_CONFIRM, decode_open_confirm_maxsz, hdr); encode_nfs4_stateid(xdr, arg->stateid); encode_nfs4_seqid(xdr, arg->seqid); } static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_OPEN_DOWNGRADE, decode_open_downgrade_maxsz, hdr); encode_nfs4_stateid(xdr, &arg->stateid); encode_nfs4_seqid(xdr, arg->seqid); encode_share_access(xdr, arg->share_access); } static void encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_PUTFH, decode_putfh_maxsz, hdr); encode_string(xdr, fh->size, fh->data); } static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_PUTROOTFH, decode_putrootfh_maxsz, hdr); } static void encode_read(struct xdr_stream *xdr, const struct nfs_pgio_args *args, struct compound_hdr *hdr) { __be32 *p; encode_op_hdr(xdr, OP_READ, decode_read_maxsz, hdr); encode_nfs4_stateid(xdr, &args->stateid); p = reserve_space(xdr, 12); p = xdr_encode_hyper(p, args->offset); *p = cpu_to_be32(args->count); } static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) { uint32_t attrs[3] = { FATTR4_WORD0_TYPE | FATTR4_WORD0_RDATTR_ERROR, FATTR4_WORD1_MOUNTED_ON_FILEID, }; uint32_t dircount = readdir->count; uint32_t maxcount = readdir->count; __be32 *p, verf[2]; uint32_t attrlen = 0; unsigned int i; if (readdir->plus) { attrs[0] |= FATTR4_WORD0_CHANGE | FATTR4_WORD0_SIZE | FATTR4_WORD0_FSID | FATTR4_WORD0_FILEHANDLE | FATTR4_WORD0_FILEID; attrs[1] |= FATTR4_WORD1_MODE | FATTR4_WORD1_NUMLINKS | FATTR4_WORD1_OWNER | FATTR4_WORD1_OWNER_GROUP | FATTR4_WORD1_RAWDEV | FATTR4_WORD1_SPACE_USED | FATTR4_WORD1_TIME_ACCESS | FATTR4_WORD1_TIME_METADATA | FATTR4_WORD1_TIME_MODIFY; attrs[2] |= FATTR4_WORD2_SECURITY_LABEL; } /* Use mounted_on_fileid only if the server supports it */ if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) attrs[0] |= FATTR4_WORD0_FILEID; for (i = 0; i < ARRAY_SIZE(attrs); i++) { attrs[i] &= readdir->bitmask[i]; if (attrs[i] != 0) attrlen = i+1; } encode_op_hdr(xdr, OP_READDIR, decode_readdir_maxsz, hdr); encode_uint64(xdr, readdir->cookie); encode_nfs4_verifier(xdr, &readdir->verifier); p = reserve_space(xdr, 12 + (attrlen << 2)); *p++ = cpu_to_be32(dircount); *p++ = cpu_to_be32(maxcount); *p++ = cpu_to_be32(attrlen); for (i = 0; i < attrlen; i++) *p++ = cpu_to_be32(attrs[i]); memcpy(verf, readdir->verifier.data, sizeof(verf)); dprintk("%s: cookie = %llu, verifier = %08x:%08x, bitmap = %08x:%08x:%08x\n", __func__, (unsigned long long)readdir->cookie, verf[0], verf[1], attrs[0] & readdir->bitmask[0], attrs[1] & readdir->bitmask[1], attrs[2] & readdir->bitmask[2]); } static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_READLINK, decode_readlink_maxsz, hdr); } static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_REMOVE, decode_remove_maxsz, hdr); encode_string(xdr, name->len, name->name); } static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_RENAME, decode_rename_maxsz, hdr); encode_string(xdr, oldname->len, oldname->name); encode_string(xdr, newname->len, newname->name); } static void encode_renew(struct xdr_stream *xdr, clientid4 clid, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_RENEW, decode_renew_maxsz, hdr); encode_uint64(xdr, clid); } static void encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_RESTOREFH, decode_restorefh_maxsz, hdr); } static void nfs4_acltype_to_bitmap(enum nfs4_acl_type type, __u32 bitmap[2]) { switch (type) { default: bitmap[0] = FATTR4_WORD0_ACL; bitmap[1] = 0; break; case NFS4ACL_DACL: bitmap[0] = 0; bitmap[1] = FATTR4_WORD1_DACL; break; case NFS4ACL_SACL: bitmap[0] = 0; bitmap[1] = FATTR4_WORD1_SACL; } } static void encode_setacl(struct xdr_stream *xdr, const struct nfs_setaclargs *arg, struct compound_hdr *hdr) { __u32 bitmap[2]; nfs4_acltype_to_bitmap(arg->acl_type, bitmap); encode_op_hdr(xdr, OP_SETATTR, decode_setacl_maxsz, hdr); encode_nfs4_stateid(xdr, &zero_stateid); xdr_encode_bitmap4(xdr, bitmap, ARRAY_SIZE(bitmap)); encode_uint32(xdr, arg->acl_len); xdr_write_pages(xdr, arg->acl_pages, 0, arg->acl_len); } static void encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_SAVEFH, decode_savefh_maxsz, hdr); } static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_SETATTR, decode_setattr_maxsz, hdr); encode_nfs4_stateid(xdr, &arg->stateid); encode_attrs(xdr, arg->iap, arg->label, NULL, server, server->attr_bitmask); } static void encode_delegattr(struct xdr_stream *xdr, const nfs4_stateid *stateid, const struct nfs4_delegattr *attr, struct compound_hdr *hdr) { uint32_t bitmap[3] = { 0 }; uint32_t len = 0; __be32 *p; encode_op_hdr(xdr, OP_SETATTR, encode_delegattr_maxsz, hdr); encode_nfs4_stateid(xdr, stateid); if (attr->atime_set) { bitmap[2] |= FATTR4_WORD2_TIME_DELEG_ACCESS; len += (nfstime4_maxsz << 2); } if (attr->mtime_set) { bitmap[2] |= FATTR4_WORD2_TIME_DELEG_MODIFY; len += (nfstime4_maxsz << 2); } xdr_encode_bitmap4(xdr, bitmap, ARRAY_SIZE(bitmap)); xdr_stream_encode_opaque_inline(xdr, (void **)&p, len); if (bitmap[2] & FATTR4_WORD2_TIME_DELEG_ACCESS) p = xdr_encode_nfstime4(p, &attr->atime); if (bitmap[2] & FATTR4_WORD2_TIME_DELEG_MODIFY) p = xdr_encode_nfstime4(p, &attr->mtime); } static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) { __be32 *p; encode_op_hdr(xdr, OP_SETCLIENTID, decode_setclientid_maxsz, hdr); encode_nfs4_verifier(xdr, setclientid->sc_verifier); encode_string(xdr, strlen(setclientid->sc_clnt->cl_owner_id), setclientid->sc_clnt->cl_owner_id); p = reserve_space(xdr, 4); *p = cpu_to_be32(setclientid->sc_prog); encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); p = reserve_space(xdr, 4); *p = cpu_to_be32(setclientid->sc_clnt->cl_cb_ident); } static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM, decode_setclientid_confirm_maxsz, hdr); encode_uint64(xdr, arg->clientid); encode_nfs4_verifier(xdr, &arg->confirm); } static void encode_write(struct xdr_stream *xdr, const struct nfs_pgio_args *args, struct compound_hdr *hdr) { __be32 *p; encode_op_hdr(xdr, OP_WRITE, decode_write_maxsz, hdr); encode_nfs4_stateid(xdr, &args->stateid); p = reserve_space(xdr, 16); p = xdr_encode_hyper(p, args->offset); *p++ = cpu_to_be32(args->stable); *p = cpu_to_be32(args->count); xdr_write_pages(xdr, args->pages, args->pgbase, args->count); } static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_DELEGRETURN, decode_delegreturn_maxsz, hdr); encode_nfs4_stateid(xdr, stateid); } static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_SECINFO, decode_secinfo_maxsz, hdr); encode_string(xdr, name->len, name->name); } #if defined(CONFIG_NFS_V4_1) /* NFSv4.1 operations */ static void encode_bind_conn_to_session(struct xdr_stream *xdr, const struct nfs41_bind_conn_to_session_args *args, struct compound_hdr *hdr) { __be32 *p; encode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION, decode_bind_conn_to_session_maxsz, hdr); encode_opaque_fixed(xdr, args->sessionid.data, NFS4_MAX_SESSIONID_LEN); p = xdr_reserve_space(xdr, 8); *p++ = cpu_to_be32(args->dir); *p = (args->use_conn_in_rdma_mode) ? cpu_to_be32(1) : cpu_to_be32(0); } static void encode_op_map(struct xdr_stream *xdr, const struct nfs4_op_map *op_map) { unsigned int i; encode_uint32(xdr, NFS4_OP_MAP_NUM_WORDS); for (i = 0; i < NFS4_OP_MAP_NUM_WORDS; i++) encode_uint32(xdr, op_map->u.words[i]); } static void encode_exchange_id(struct xdr_stream *xdr, const struct nfs41_exchange_id_args *args, struct compound_hdr *hdr) { __be32 *p; char impl_name[IMPL_NAME_LIMIT]; int len = 0; encode_op_hdr(xdr, OP_EXCHANGE_ID, decode_exchange_id_maxsz, hdr); encode_nfs4_verifier(xdr, &args->verifier); encode_string(xdr, strlen(args->client->cl_owner_id), args->client->cl_owner_id); encode_uint32(xdr, args->flags); encode_uint32(xdr, args->state_protect.how); switch (args->state_protect.how) { case SP4_NONE: break; case SP4_MACH_CRED: encode_op_map(xdr, &args->state_protect.enforce); encode_op_map(xdr, &args->state_protect.allow); break; default: WARN_ON_ONCE(1); break; } if (send_implementation_id && sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) > 1 && sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) <= sizeof(impl_name) + 1) len = snprintf(impl_name, sizeof(impl_name), "%s %s %s %s", utsname()->sysname, utsname()->release, utsname()->version, utsname()->machine); if (len > 0) { encode_uint32(xdr, 1); /* implementation id array length=1 */ encode_string(xdr, sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) - 1, CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN); encode_string(xdr, len, impl_name); /* just send zeros for nii_date - the date is in nii_name */ p = reserve_space(xdr, 12); p = xdr_encode_hyper(p, 0); *p = cpu_to_be32(0); } else encode_uint32(xdr, 0); /* implementation id array length=0 */ } static void encode_create_session(struct xdr_stream *xdr, const struct nfs41_create_session_args *args, struct compound_hdr *hdr) { __be32 *p; struct nfs_client *clp = args->client; struct rpc_clnt *clnt = clp->cl_rpcclient; struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id); u32 max_resp_sz_cached; /* * Assumes OPEN is the biggest non-idempotent compound. * 2 is the verifier. */ max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 2) * XDR_UNIT + RPC_MAX_AUTH_SIZE; encode_op_hdr(xdr, OP_CREATE_SESSION, decode_create_session_maxsz, hdr); p = reserve_space(xdr, 16 + 2*28 + 20 + clnt->cl_nodelen + 12); p = xdr_encode_hyper(p, args->clientid); *p++ = cpu_to_be32(args->seqid); /*Sequence id */ *p++ = cpu_to_be32(args->flags); /*flags */ /* Fore Channel */ *p++ = cpu_to_be32(0); /* header padding size */ *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ /* Back Channel */ *p++ = cpu_to_be32(0); /* header padding size */ *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ *p++ = cpu_to_be32(args->cb_program); /* cb_program */ *p++ = cpu_to_be32(1); *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ /* authsys_parms rfc1831 */ *p++ = cpu_to_be32(ktime_to_ns(nn->boot_time)); /* stamp */ p = xdr_encode_array(p, clnt->cl_nodename, clnt->cl_nodelen); *p++ = cpu_to_be32(0); /* UID */ *p++ = cpu_to_be32(0); /* GID */ *p = cpu_to_be32(0); /* No more gids */ } static void encode_destroy_session(struct xdr_stream *xdr, const struct nfs4_session *session, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_DESTROY_SESSION, decode_destroy_session_maxsz, hdr); encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); } static void encode_destroy_clientid(struct xdr_stream *xdr, uint64_t clientid, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_DESTROY_CLIENTID, decode_destroy_clientid_maxsz, hdr); encode_uint64(xdr, clientid); } static void encode_reclaim_complete(struct xdr_stream *xdr, const struct nfs41_reclaim_complete_args *args, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_RECLAIM_COMPLETE, decode_reclaim_complete_maxsz, hdr); encode_uint32(xdr, args->one_fs); } #endif /* CONFIG_NFS_V4_1 */ static void encode_sequence(struct xdr_stream *xdr, const struct nfs4_sequence_args *args, struct compound_hdr *hdr) { #if defined(CONFIG_NFS_V4_1) struct nfs4_session *session; struct nfs4_slot_table *tp; struct nfs4_slot *slot = args->sa_slot; __be32 *p; tp = slot->table; session = tp->session; if (!session) return; encode_op_hdr(xdr, OP_SEQUENCE, decode_sequence_maxsz, hdr); /* * Sessionid + seqid + slotid + max slotid + cache_this */ dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " "max_slotid=%d cache_this=%d\n", __func__, ((u32 *)session->sess_id.data)[0], ((u32 *)session->sess_id.data)[1], ((u32 *)session->sess_id.data)[2], ((u32 *)session->sess_id.data)[3], slot->seq_nr, slot->slot_nr, tp->highest_used_slotid, args->sa_cache_this); p = reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 16); p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); *p++ = cpu_to_be32(slot->seq_nr); *p++ = cpu_to_be32(slot->slot_nr); *p++ = cpu_to_be32(tp->highest_used_slotid); *p = cpu_to_be32(args->sa_cache_this); #endif /* CONFIG_NFS_V4_1 */ } #ifdef CONFIG_NFS_V4_1 static void encode_getdeviceinfo(struct xdr_stream *xdr, const struct nfs4_getdeviceinfo_args *args, struct compound_hdr *hdr) { __be32 *p; encode_op_hdr(xdr, OP_GETDEVICEINFO, decode_getdeviceinfo_maxsz, hdr); p = reserve_space(xdr, NFS4_DEVICEID4_SIZE + 4 + 4); p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data, NFS4_DEVICEID4_SIZE); *p++ = cpu_to_be32(args->pdev->layout_type); *p++ = cpu_to_be32(args->pdev->maxcount); /* gdia_maxcount */ p = reserve_space(xdr, 4 + 4); *p++ = cpu_to_be32(1); /* bitmap length */ *p++ = cpu_to_be32(args->notify_types); } static void encode_layoutget(struct xdr_stream *xdr, const struct nfs4_layoutget_args *args, struct compound_hdr *hdr) { __be32 *p; encode_op_hdr(xdr, OP_LAYOUTGET, decode_layoutget_maxsz, hdr); p = reserve_space(xdr, 36); *p++ = cpu_to_be32(0); /* Signal layout available */ *p++ = cpu_to_be32(args->type); *p++ = cpu_to_be32(args->range.iomode); p = xdr_encode_hyper(p, args->range.offset); p = xdr_encode_hyper(p, args->range.length); p = xdr_encode_hyper(p, args->minlength); encode_nfs4_stateid(xdr, &args->stateid); encode_uint32(xdr, args->maxcount); dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n", __func__, args->type, args->range.iomode, (unsigned long)args->range.offset, (unsigned long)args->range.length, args->maxcount); } static int encode_layoutcommit(struct xdr_stream *xdr, struct inode *inode, const struct nfs4_layoutcommit_args *args, struct compound_hdr *hdr) { __be32 *p; dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten, NFS_SERVER(args->inode)->pnfs_curr_ld->id); encode_op_hdr(xdr, OP_LAYOUTCOMMIT, decode_layoutcommit_maxsz, hdr); p = reserve_space(xdr, 20); /* Only whole file layouts */ p = xdr_encode_hyper(p, 0); /* offset */ p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */ *p = cpu_to_be32(0); /* reclaim */ encode_nfs4_stateid(xdr, &args->stateid); if (args->lastbytewritten != U64_MAX) { p = reserve_space(xdr, 20); *p++ = cpu_to_be32(1); /* newoffset = TRUE */ p = xdr_encode_hyper(p, args->lastbytewritten); } else { p = reserve_space(xdr, 12); *p++ = cpu_to_be32(0); /* newoffset = FALSE */ } *p++ = cpu_to_be32(0); /* Never send time_modify_changed */ *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */ encode_uint32(xdr, args->layoutupdate_len); if (args->layoutupdate_pages) xdr_write_pages(xdr, args->layoutupdate_pages, 0, args->layoutupdate_len); return 0; } static void encode_layoutreturn(struct xdr_stream *xdr, const struct nfs4_layoutreturn_args *args, struct compound_hdr *hdr) { __be32 *p; encode_op_hdr(xdr, OP_LAYOUTRETURN, decode_layoutreturn_maxsz, hdr); p = reserve_space(xdr, 16); *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */ *p++ = cpu_to_be32(args->layout_type); *p++ = cpu_to_be32(args->range.iomode); *p = cpu_to_be32(RETURN_FILE); p = reserve_space(xdr, 16); p = xdr_encode_hyper(p, args->range.offset); p = xdr_encode_hyper(p, args->range.length); spin_lock(&args->inode->i_lock); encode_nfs4_stateid(xdr, &args->stateid); spin_unlock(&args->inode->i_lock); if (args->ld_private->ops && args->ld_private->ops->encode) args->ld_private->ops->encode(xdr, args, args->ld_private); else encode_uint32(xdr, 0); } static int encode_secinfo_no_name(struct xdr_stream *xdr, const struct nfs41_secinfo_no_name_args *args, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_SECINFO_NO_NAME, decode_secinfo_no_name_maxsz, hdr); encode_uint32(xdr, args->style); return 0; } static void encode_test_stateid(struct xdr_stream *xdr, const struct nfs41_test_stateid_args *args, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_TEST_STATEID, decode_test_stateid_maxsz, hdr); encode_uint32(xdr, 1); encode_nfs4_stateid(xdr, &args->stateid); } static void encode_free_stateid(struct xdr_stream *xdr, const struct nfs41_free_stateid_args *args, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_FREE_STATEID, decode_free_stateid_maxsz, hdr); encode_nfs4_stateid(xdr, &args->stateid); } #else static inline void encode_layoutreturn(struct xdr_stream *xdr, const struct nfs4_layoutreturn_args *args, struct compound_hdr *hdr) { } static void encode_layoutget(struct xdr_stream *xdr, const struct nfs4_layoutget_args *args, struct compound_hdr *hdr) { } #endif /* CONFIG_NFS_V4_1 */ /* * END OF "GENERIC" ENCODE ROUTINES. */ static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) { #if defined(CONFIG_NFS_V4_1) struct nfs4_session *session = args->sa_slot->table->session; if (session) return session->clp->cl_mvops->minor_version; #endif /* CONFIG_NFS_V4_1 */ return 0; } /* * Encode an ACCESS request */ static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_accessargs *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); encode_access(xdr, args->access, &hdr); if (args->bitmask) encode_getfattr(xdr, args->bitmask, &hdr); encode_nops(&hdr); } /* * Encode LOOKUP request */ static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_lookup_arg *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->dir_fh, &hdr); encode_lookup(xdr, args->name, &hdr); encode_getfh(xdr, &hdr); encode_getfattr(xdr, args->bitmask, &hdr); encode_nops(&hdr); } /* * Encode LOOKUPP request */ static void nfs4_xdr_enc_lookupp(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_lookupp_arg *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); encode_lookupp(xdr, &hdr); encode_getfh(xdr, &hdr); encode_getfattr(xdr, args->bitmask, &hdr); encode_nops(&hdr); } /* * Encode LOOKUP_ROOT request */ static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_lookup_root_arg *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putrootfh(xdr, &hdr); encode_getfh(xdr, &hdr); encode_getfattr(xdr, args->bitmask, &hdr); encode_nops(&hdr); } /* * Encode REMOVE request */ static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs_removeargs *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); encode_remove(xdr, &args->name, &hdr); encode_nops(&hdr); } /* * Encode RENAME request */ static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs_renameargs *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->old_dir, &hdr); encode_savefh(xdr, &hdr); encode_putfh(xdr, args->new_dir, &hdr); encode_rename(xdr, args->old_name, args->new_name, &hdr); encode_nops(&hdr); } /* * Encode LINK request */ static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_link_arg *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); encode_savefh(xdr, &hdr); encode_putfh(xdr, args->dir_fh, &hdr); encode_link(xdr, args->name, &hdr); encode_restorefh(xdr, &hdr); encode_getfattr(xdr, args->bitmask, &hdr); encode_nops(&hdr); } /* * Encode CREATE request */ static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_create_arg *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->dir_fh, &hdr); encode_create(xdr, args, &hdr); encode_getfh(xdr, &hdr); encode_getfattr(xdr, args->bitmask, &hdr); encode_nops(&hdr); } /* * Encode SYMLINK request */ static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_create_arg *args = data; nfs4_xdr_enc_create(req, xdr, args); } /* * Encode GETATTR request */ static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_getattr_arg *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); encode_getfattr(xdr, args->bitmask, &hdr); encode_nops(&hdr); } /* * Encode a CLOSE request */ static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs_closeargs *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); if (args->lr_args) encode_layoutreturn(xdr, args->lr_args, &hdr); if (args->bitmask != NULL) encode_getfattr(xdr, args->bitmask, &hdr); encode_close(xdr, args, &hdr); encode_nops(&hdr); } /* * Encode an OPEN request */ static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs_openargs *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); encode_open(xdr, args, &hdr); encode_getfh(xdr, &hdr); if (args->access) encode_access(xdr, args->access, &hdr); encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); if (args->lg_args) { encode_layoutget(xdr, args->lg_args, &hdr); rpc_prepare_reply_pages(req, args->lg_args->layout.pages, 0, args->lg_args->layout.pglen, hdr.replen - pagepad_maxsz); } encode_nops(&hdr); } /* * Encode an OPEN_CONFIRM request */ static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs_open_confirmargs *args = data; struct compound_hdr hdr = { .nops = 0, }; encode_compound_hdr(xdr, req, &hdr); encode_putfh(xdr, args->fh, &hdr); encode_open_confirm(xdr, args, &hdr); encode_nops(&hdr); } /* * Encode an OPEN request with no attributes. */ static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs_openargs *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); encode_open(xdr, args, &hdr); if (args->access) encode_access(xdr, args->access, &hdr); encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); if (args->lg_args) { encode_layoutget(xdr, args->lg_args, &hdr); rpc_prepare_reply_pages(req, args->lg_args->layout.pages, 0, args->lg_args->layout.pglen, hdr.replen - pagepad_maxsz); } encode_nops(&hdr); } /* * Encode an OPEN_DOWNGRADE request */ static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs_closeargs *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); if (args->lr_args) encode_layoutreturn(xdr, args->lr_args, &hdr); encode_open_downgrade(xdr, args, &hdr); encode_nops(&hdr); } /* * Encode a LOCK request */ static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs_lock_args *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); encode_lock(xdr, args, &hdr); encode_nops(&hdr); } /* * Encode a LOCKT request */ static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs_lockt_args *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); encode_lockt(xdr, args, &hdr); encode_nops(&hdr); } /* * Encode a LOCKU request */ static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs_locku_args *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); encode_locku(xdr, args, &hdr); encode_nops(&hdr); } static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs_release_lockowner_args *args = data; struct compound_hdr hdr = { .minorversion = 0, }; encode_compound_hdr(xdr, req, &hdr); encode_release_lockowner(xdr, &args->lock_owner, &hdr); encode_nops(&hdr); } /* * Encode a READLINK request */ static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_readlink *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); encode_readlink(xdr, args, req, &hdr); rpc_prepare_reply_pages(req, args->pages, args->pgbase, args->pglen, hdr.replen - pagepad_maxsz); encode_nops(&hdr); } /* * Encode a READDIR request */ static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_readdir_arg *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); encode_readdir(xdr, args, req, &hdr); rpc_prepare_reply_pages(req, args->pages, args->pgbase, args->count, hdr.replen - pagepad_maxsz); encode_nops(&hdr); } /* * Encode a READ request */ static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs_pgio_args *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); encode_read(xdr, args, &hdr); rpc_prepare_reply_pages(req, args->pages, args->pgbase, args->count, hdr.replen - pagepad_maxsz); req->rq_rcv_buf.flags |= XDRBUF_READ; encode_nops(&hdr); } /* * Encode an SETATTR request */ static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs_setattrargs *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); encode_setattr(xdr, args, args->server, &hdr); encode_getfattr(xdr, args->bitmask, &hdr); encode_nops(&hdr); } /* * Encode a GETACL request */ static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs_getaclargs *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; __u32 nfs4_acl_bitmap[2]; uint32_t replen; nfs4_acltype_to_bitmap(args->acl_type, nfs4_acl_bitmap); encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); replen = hdr.replen + op_decode_hdr_maxsz; encode_getattr(xdr, nfs4_acl_bitmap, NULL, ARRAY_SIZE(nfs4_acl_bitmap), &hdr); rpc_prepare_reply_pages(req, args->acl_pages, 0, args->acl_len, replen); encode_nops(&hdr); } /* * Encode a WRITE request */ static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs_pgio_args *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); encode_write(xdr, args, &hdr); req->rq_snd_buf.flags |= XDRBUF_WRITE; if (args->bitmask) encode_getfattr(xdr, args->bitmask, &hdr); encode_nops(&hdr); } /* * a COMMIT request */ static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs_commitargs *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); encode_commit(xdr, args, &hdr); encode_nops(&hdr); } /* * FSINFO request */ static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_fsinfo_arg *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); encode_fsinfo(xdr, args->bitmask, &hdr); encode_nops(&hdr); } /* * a PATHCONF request */ static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_pathconf_arg *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); encode_getattr(xdr, nfs4_pathconf_bitmap, args->bitmask, ARRAY_SIZE(nfs4_pathconf_bitmap), &hdr); encode_nops(&hdr); } /* * a STATFS request */ static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_statfs_arg *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); encode_getattr(xdr, nfs4_statfs_bitmap, args->bitmask, ARRAY_SIZE(nfs4_statfs_bitmap), &hdr); encode_nops(&hdr); } /* * GETATTR_BITMAP request */ static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_server_caps_arg *args = data; const u32 *bitmask = args->bitmask; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fhandle, &hdr); encode_getattr(xdr, bitmask, NULL, 3, &hdr); encode_nops(&hdr); } /* * a RENEW request */ static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs_client *clp = data; struct compound_hdr hdr = { .nops = 0, }; encode_compound_hdr(xdr, req, &hdr); encode_renew(xdr, clp->cl_clientid, &hdr); encode_nops(&hdr); } /* * a SETCLIENTID request */ static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_setclientid *sc = data; struct compound_hdr hdr = { .nops = 0, }; encode_compound_hdr(xdr, req, &hdr); encode_setclientid(xdr, sc, &hdr); encode_nops(&hdr); } /* * a SETCLIENTID_CONFIRM request */ static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_setclientid_res *arg = data; struct compound_hdr hdr = { .nops = 0, }; encode_compound_hdr(xdr, req, &hdr); encode_setclientid_confirm(xdr, arg, &hdr); encode_nops(&hdr); } /* * DELEGRETURN request */ static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_delegreturnargs *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fhandle, &hdr); if (args->lr_args) encode_layoutreturn(xdr, args->lr_args, &hdr); if (args->sattr_args) encode_delegattr(xdr, args->stateid, args->sattr_args, &hdr); if (args->bitmask) encode_getfattr(xdr, args->bitmask, &hdr); encode_delegreturn(xdr, args->stateid, &hdr); encode_nops(&hdr); } /* * Encode FS_LOCATIONS request */ static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_fs_locations_arg *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; uint32_t replen; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); if (args->migration) { encode_putfh(xdr, args->fh, &hdr); replen = hdr.replen; encode_fs_locations(xdr, args->bitmask, &hdr); if (args->renew) encode_renew(xdr, args->clientid, &hdr); } else { encode_putfh(xdr, args->dir_fh, &hdr); encode_lookup(xdr, args->name, &hdr); replen = hdr.replen; encode_fs_locations(xdr, args->bitmask, &hdr); } rpc_prepare_reply_pages(req, (struct page **)&args->page, 0, PAGE_SIZE, replen); encode_nops(&hdr); } /* * Encode SECINFO request */ static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_secinfo_arg *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->dir_fh, &hdr); encode_secinfo(xdr, args->name, &hdr); encode_nops(&hdr); } /* * Encode FSID_PRESENT request */ static void nfs4_xdr_enc_fsid_present(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_fsid_present_arg *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); encode_getfh(xdr, &hdr); if (args->renew) encode_renew(xdr, args->clientid, &hdr); encode_nops(&hdr); } #if defined(CONFIG_NFS_V4_1) /* * BIND_CONN_TO_SESSION request */ static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs41_bind_conn_to_session_args *args = data; struct compound_hdr hdr = { .minorversion = args->client->cl_mvops->minor_version, }; encode_compound_hdr(xdr, req, &hdr); encode_bind_conn_to_session(xdr, args, &hdr); encode_nops(&hdr); } /* * EXCHANGE_ID request */ static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs41_exchange_id_args *args = data; struct compound_hdr hdr = { .minorversion = args->client->cl_mvops->minor_version, }; encode_compound_hdr(xdr, req, &hdr); encode_exchange_id(xdr, args, &hdr); encode_nops(&hdr); } /* * a CREATE_SESSION request */ static void nfs4_xdr_enc_create_session(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs41_create_session_args *args = data; struct compound_hdr hdr = { .minorversion = args->client->cl_mvops->minor_version, }; encode_compound_hdr(xdr, req, &hdr); encode_create_session(xdr, args, &hdr); encode_nops(&hdr); } /* * a DESTROY_SESSION request */ static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_session *session = data; struct compound_hdr hdr = { .minorversion = session->clp->cl_mvops->minor_version, }; encode_compound_hdr(xdr, req, &hdr); encode_destroy_session(xdr, session, &hdr); encode_nops(&hdr); } /* * a DESTROY_CLIENTID request */ static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs_client *clp = data; struct compound_hdr hdr = { .minorversion = clp->cl_mvops->minor_version, }; encode_compound_hdr(xdr, req, &hdr); encode_destroy_clientid(xdr, clp->cl_clientid, &hdr); encode_nops(&hdr); } /* * a SEQUENCE request */ static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_sequence_args *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, args, &hdr); encode_nops(&hdr); } #endif /* * a GET_LEASE_TIME request */ static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_get_lease_time_args *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), }; const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->la_seq_args, &hdr); encode_putrootfh(xdr, &hdr); encode_fsinfo(xdr, lease_bitmap, &hdr); encode_nops(&hdr); } #ifdef CONFIG_NFS_V4_1 /* * a RECLAIM_COMPLETE request */ static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs41_reclaim_complete_args *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args) }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_reclaim_complete(xdr, args, &hdr); encode_nops(&hdr); } /* * Encode GETDEVICEINFO request */ static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_getdeviceinfo_args *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; uint32_t replen; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); replen = hdr.replen + op_decode_hdr_maxsz + 2; encode_getdeviceinfo(xdr, args, &hdr); /* set up reply kvec. device_addr4 opaque data is read into the * pages */ rpc_prepare_reply_pages(req, args->pdev->pages, args->pdev->pgbase, args->pdev->pglen, replen); encode_nops(&hdr); } /* * Encode LAYOUTGET request */ static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_layoutget_args *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, NFS_FH(args->inode), &hdr); encode_layoutget(xdr, args, &hdr); rpc_prepare_reply_pages(req, args->layout.pages, 0, args->layout.pglen, hdr.replen - pagepad_maxsz); encode_nops(&hdr); } /* * Encode LAYOUTCOMMIT request */ static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req, struct xdr_stream *xdr, const void *priv) { const struct nfs4_layoutcommit_args *args = priv; struct nfs4_layoutcommit_data *data = container_of(args, struct nfs4_layoutcommit_data, args); struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, NFS_FH(args->inode), &hdr); encode_layoutcommit(xdr, data->args.inode, args, &hdr); encode_getfattr(xdr, args->bitmask, &hdr); encode_nops(&hdr); } /* * Encode LAYOUTRETURN request */ static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs4_layoutreturn_args *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, NFS_FH(args->inode), &hdr); encode_layoutreturn(xdr, args, &hdr); encode_nops(&hdr); } /* * Encode SECINFO_NO_NAME request */ static void nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs41_secinfo_no_name_args *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putrootfh(xdr, &hdr); encode_secinfo_no_name(xdr, args, &hdr); encode_nops(&hdr); } /* * Encode TEST_STATEID request */ static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs41_test_stateid_args *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_test_stateid(xdr, args, &hdr); encode_nops(&hdr); } /* * Encode FREE_STATEID request */ static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs41_free_stateid_args *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_free_stateid(xdr, args, &hdr); encode_nops(&hdr); } #endif /* CONFIG_NFS_V4_1 */ static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) { ssize_t ret = xdr_stream_decode_opaque_inline(xdr, (void **)string, NFS4_OPAQUE_LIMIT); if (unlikely(ret < 0)) return -EIO; *len = ret; return 0; } static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) { ssize_t ret; void *ptr; u32 tmp; if (xdr_stream_decode_u32(xdr, &tmp) < 0) return -EIO; hdr->status = tmp; ret = xdr_stream_decode_opaque_inline(xdr, &ptr, NFS4_OPAQUE_LIMIT); if (ret < 0) return -EIO; hdr->taglen = ret; hdr->tag = ptr; if (xdr_stream_decode_u32(xdr, &tmp) < 0) return -EIO; hdr->nops = tmp; if (unlikely(hdr->nops < 1)) return nfs4_stat_to_errno(hdr->status); return 0; } static bool __decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected, int *nfs_retval) { __be32 *p; uint32_t opnum; int32_t nfserr; p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) goto out_overflow; opnum = be32_to_cpup(p++); if (unlikely(opnum != expected)) goto out_bad_operation; if (unlikely(*p != cpu_to_be32(NFS_OK))) goto out_status; *nfs_retval = 0; return true; out_status: nfserr = be32_to_cpup(p); trace_nfs4_xdr_status(xdr, opnum, nfserr); *nfs_retval = nfs4_stat_to_errno(nfserr); return true; out_bad_operation: trace_nfs4_xdr_bad_operation(xdr, opnum, expected); *nfs_retval = -EREMOTEIO; return false; out_overflow: *nfs_retval = -EIO; return false; } static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) { int retval; __decode_op_hdr(xdr, expected, &retval); return retval; } /* Dummy routine */ static int decode_ace(struct xdr_stream *xdr, void *ace) { __be32 *p; unsigned int strlen; char *str; p = xdr_inline_decode(xdr, 12); if (unlikely(!p)) return -EIO; return decode_opaque_inline(xdr, &strlen, &str); } static ssize_t decode_bitmap4(struct xdr_stream *xdr, uint32_t *bitmap, size_t sz) { ssize_t ret; ret = xdr_stream_decode_uint32_array(xdr, bitmap, sz); if (likely(ret >= 0)) return ret; if (ret != -EMSGSIZE) return -EIO; return sz; } static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) { ssize_t ret; ret = decode_bitmap4(xdr, bitmap, 3); return ret < 0 ? ret : 0; } static int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, unsigned int *savep) { __be32 *p; p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; *attrlen = be32_to_cpup(p); *savep = xdr_stream_pos(xdr); return 0; } static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) { if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { int ret; ret = decode_attr_bitmap(xdr, bitmask); if (unlikely(ret < 0)) return ret; bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; } else bitmask[0] = bitmask[1] = bitmask[2] = 0; dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, bitmask[0], bitmask[1], bitmask[2]); return 0; } static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) { __be32 *p; int ret = 0; *type = 0; if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; *type = be32_to_cpup(p); if (*type < NF4REG || *type > NF4NAMEDATTR) { dprintk("%s: bad type %d\n", __func__, *type); return -EIO; } bitmap[0] &= ~FATTR4_WORD0_TYPE; ret = NFS_ATTR_FATTR_TYPE; } dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); return ret; } static int decode_attr_fh_expire_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) { __be32 *p; *type = 0; if (unlikely(bitmap[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_FH_EXPIRE_TYPE)) { p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; *type = be32_to_cpup(p); bitmap[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE; } dprintk("%s: expire type=0x%x\n", __func__, *type); return 0; } static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) { __be32 *p; int ret = 0; *change = 0; if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; xdr_decode_hyper(p, change); bitmap[0] &= ~FATTR4_WORD0_CHANGE; ret = NFS_ATTR_FATTR_CHANGE; } dprintk("%s: change attribute=%Lu\n", __func__, (unsigned long long)*change); return ret; } static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) { __be32 *p; int ret = 0; *size = 0; if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; xdr_decode_hyper(p, size); bitmap[0] &= ~FATTR4_WORD0_SIZE; ret = NFS_ATTR_FATTR_SIZE; } dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); return ret; } static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) { __be32 *p; *res = 0; if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; *res = be32_to_cpup(p); bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; } dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); return 0; } static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) { __be32 *p; *res = 0; if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; *res = be32_to_cpup(p); bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; } dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); return 0; } static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) { __be32 *p; int ret = 0; fsid->major = 0; fsid->minor = 0; if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { p = xdr_inline_decode(xdr, 16); if (unlikely(!p)) return -EIO; p = xdr_decode_hyper(p, &fsid->major); xdr_decode_hyper(p, &fsid->minor); bitmap[0] &= ~FATTR4_WORD0_FSID; ret = NFS_ATTR_FATTR_FSID; } dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, (unsigned long long)fsid->major, (unsigned long long)fsid->minor); return ret; } static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) { __be32 *p; *res = 60; if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; *res = be32_to_cpup(p); bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; } dprintk("%s: lease time=%u\n", __func__, (unsigned int)*res); return 0; } static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res) { __be32 *p; if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; *res = -be32_to_cpup(p); } return 0; } static int decode_attr_exclcreat_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) { if (likely(bitmap[2] & FATTR4_WORD2_SUPPATTR_EXCLCREAT)) { int ret; ret = decode_attr_bitmap(xdr, bitmask); if (unlikely(ret < 0)) return ret; bitmap[2] &= ~FATTR4_WORD2_SUPPATTR_EXCLCREAT; } else bitmask[0] = bitmask[1] = bitmask[2] = 0; dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, bitmask[0], bitmask[1], bitmask[2]); return 0; } static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) { __be32 *p; u32 len; if (fh != NULL) memset(fh, 0, sizeof(*fh)); if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; len = be32_to_cpup(p); if (len > NFS4_FHSIZE || len == 0) { trace_nfs4_xdr_bad_filehandle(xdr, OP_READDIR, NFS4ERR_BADHANDLE); return -EREMOTEIO; } p = xdr_inline_decode(xdr, len); if (unlikely(!p)) return -EIO; if (fh != NULL) { memcpy(fh->data, p, len); fh->size = len; } bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; } return 0; } static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) { __be32 *p; *res = 0; if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; *res = be32_to_cpup(p); bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; } dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); return 0; } static int decode_attr_case_insensitive(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) { __be32 *p; *res = 0; if (unlikely(bitmap[0] & (FATTR4_WORD0_CASE_INSENSITIVE - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_CASE_INSENSITIVE)) { p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; *res = be32_to_cpup(p); bitmap[0] &= ~FATTR4_WORD0_CASE_INSENSITIVE; } dprintk("%s: case_insensitive=%s\n", __func__, *res == 0 ? "false" : "true"); return 0; } static int decode_attr_case_preserving(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) { __be32 *p; *res = 0; if (unlikely(bitmap[0] & (FATTR4_WORD0_CASE_PRESERVING - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_CASE_PRESERVING)) { p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; *res = be32_to_cpup(p); bitmap[0] &= ~FATTR4_WORD0_CASE_PRESERVING; } dprintk("%s: case_preserving=%s\n", __func__, *res == 0 ? "false" : "true"); return 0; } static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) { __be32 *p; int ret = 0; *fileid = 0; if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; xdr_decode_hyper(p, fileid); bitmap[0] &= ~FATTR4_WORD0_FILEID; ret = NFS_ATTR_FATTR_FILEID; } dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); return ret; } static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) { __be32 *p; int ret = 0; *fileid = 0; if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; xdr_decode_hyper(p, fileid); bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID; } dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); return ret; } static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) { __be32 *p; int status = 0; *res = 0; if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; xdr_decode_hyper(p, res); bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; } dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); return status; } static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) { __be32 *p; int status = 0; *res = 0; if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; xdr_decode_hyper(p, res); bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; } dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); return status; } static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) { __be32 *p; int status = 0; *res = 0; if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; xdr_decode_hyper(p, res); bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; } dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); return status; } static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) { u32 n; __be32 *p; int status = 0; p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; n = be32_to_cpup(p); if (n == 0) goto root_path; dprintk("pathname4: "); if (n > NFS4_PATHNAME_MAXCOMPONENTS) { dprintk("cannot parse %d components in path\n", n); goto out_eio; } for (path->ncomponents = 0; path->ncomponents < n; path->ncomponents++) { struct nfs4_string *component = &path->components[path->ncomponents]; status = decode_opaque_inline(xdr, &component->len, &component->data); if (unlikely(status != 0)) goto out_eio; ifdebug (XDR) pr_cont("%s%.*s ", (path->ncomponents != n ? "/ " : ""), component->len, component->data); } out: return status; root_path: /* a root pathname is sent as a zero component4 */ path->ncomponents = 1; path->components[0].len=0; path->components[0].data=NULL; dprintk("pathname4: /\n"); goto out; out_eio: dprintk(" status %d", status); status = -EIO; goto out; } static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) { int n; __be32 *p; int status = -EIO; if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) goto out; status = 0; if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) goto out; bitmap[0] &= ~FATTR4_WORD0_FS_LOCATIONS; status = -EIO; /* Ignore borken servers that return unrequested attrs */ if (unlikely(res == NULL)) goto out; dprintk("%s: fsroot:\n", __func__); status = decode_pathname(xdr, &res->fs_path); if (unlikely(status != 0)) goto out; p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) goto out_eio; n = be32_to_cpup(p); for (res->nlocations = 0; res->nlocations < n; res->nlocations++) { u32 m; struct nfs4_fs_location *loc; if (res->nlocations == NFS4_FS_LOCATIONS_MAXENTRIES) break; loc = &res->locations[res->nlocations]; p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) goto out_eio; m = be32_to_cpup(p); dprintk("%s: servers:\n", __func__); for (loc->nservers = 0; loc->nservers < m; loc->nservers++) { struct nfs4_string *server; if (loc->nservers == NFS4_FS_LOCATION_MAXSERVERS) { unsigned int i; dprintk("%s: using first %u of %u servers " "returned for location %u\n", __func__, NFS4_FS_LOCATION_MAXSERVERS, m, res->nlocations); for (i = loc->nservers; i < m; i++) { unsigned int len; char *data; status = decode_opaque_inline(xdr, &len, &data); if (unlikely(status != 0)) goto out_eio; } break; } server = &loc->servers[loc->nservers]; status = decode_opaque_inline(xdr, &server->len, &server->data); if (unlikely(status != 0)) goto out_eio; dprintk("%s ", server->data); } status = decode_pathname(xdr, &loc->rootpath); if (unlikely(status != 0)) goto out_eio; } if (res->nlocations != 0) status = NFS_ATTR_FATTR_V4_LOCATIONS; out: dprintk("%s: fs_locations done, error = %d\n", __func__, status); return status; out_eio: status = -EIO; goto out; } static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) { __be32 *p; int status = 0; *res = 0; if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; xdr_decode_hyper(p, res); bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; } dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); return status; } static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) { __be32 *p; int status = 0; *maxlink = 1; if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; *maxlink = be32_to_cpup(p); bitmap[0] &= ~FATTR4_WORD0_MAXLINK; } dprintk("%s: maxlink=%u\n", __func__, *maxlink); return status; } static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) { __be32 *p; int status = 0; *maxname = 1024; if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; *maxname = be32_to_cpup(p); bitmap[0] &= ~FATTR4_WORD0_MAXNAME; } dprintk("%s: maxname=%u\n", __func__, *maxname); return status; } static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) { __be32 *p; int status = 0; *res = 1024; if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { uint64_t maxread; p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; xdr_decode_hyper(p, &maxread); if (maxread > 0x7FFFFFFF) maxread = 0x7FFFFFFF; *res = (uint32_t)maxread; bitmap[0] &= ~FATTR4_WORD0_MAXREAD; } dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); return status; } static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) { __be32 *p; int status = 0; *res = 1024; if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { uint64_t maxwrite; p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; xdr_decode_hyper(p, &maxwrite); if (maxwrite > 0x7FFFFFFF) maxwrite = 0x7FFFFFFF; *res = (uint32_t)maxwrite; bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; } dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); return status; } static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) { uint32_t tmp; __be32 *p; int ret = 0; *mode = 0; if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; tmp = be32_to_cpup(p); *mode = tmp & ~S_IFMT; bitmap[1] &= ~FATTR4_WORD1_MODE; ret = NFS_ATTR_FATTR_MODE; } dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); return ret; } static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) { __be32 *p; int ret = 0; *nlink = 1; if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; *nlink = be32_to_cpup(p); bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; ret = NFS_ATTR_FATTR_NLINK; } dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); return ret; } static ssize_t decode_nfs4_string(struct xdr_stream *xdr, struct nfs4_string *name, gfp_t gfp_flags) { ssize_t ret; ret = xdr_stream_decode_string_dup(xdr, &name->data, XDR_MAX_NETOBJ, gfp_flags); name->len = 0; if (ret > 0) name->len = ret; return ret; } static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, const struct nfs_server *server, kuid_t *uid, struct nfs4_string *owner_name) { ssize_t len; char *p; *uid = make_kuid(&init_user_ns, -2); if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) return -EIO; if (!(bitmap[1] & FATTR4_WORD1_OWNER)) return 0; bitmap[1] &= ~FATTR4_WORD1_OWNER; if (owner_name != NULL) { len = decode_nfs4_string(xdr, owner_name, GFP_NOIO); if (len <= 0) goto out; dprintk("%s: name=%s\n", __func__, owner_name->data); return NFS_ATTR_FATTR_OWNER_NAME; } else { len = xdr_stream_decode_opaque_inline(xdr, (void **)&p, XDR_MAX_NETOBJ); if (len <= 0 || nfs_map_name_to_uid(server, p, len, uid) != 0) goto out; dprintk("%s: uid=%d\n", __func__, (int)from_kuid(&init_user_ns, *uid)); return NFS_ATTR_FATTR_OWNER; } out: if (len == -EBADMSG) return -EIO; return 0; } static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, const struct nfs_server *server, kgid_t *gid, struct nfs4_string *group_name) { ssize_t len; char *p; *gid = make_kgid(&init_user_ns, -2); if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) return -EIO; if (!(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) return 0; bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; if (group_name != NULL) { len = decode_nfs4_string(xdr, group_name, GFP_NOIO); if (len <= 0) goto out; dprintk("%s: name=%s\n", __func__, group_name->data); return NFS_ATTR_FATTR_GROUP_NAME; } else { len = xdr_stream_decode_opaque_inline(xdr, (void **)&p, XDR_MAX_NETOBJ); if (len <= 0 || nfs_map_group_to_gid(server, p, len, gid) != 0) goto out; dprintk("%s: gid=%d\n", __func__, (int)from_kgid(&init_user_ns, *gid)); return NFS_ATTR_FATTR_GROUP; } out: if (len == -EBADMSG) return -EIO; return 0; } static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) { uint32_t major = 0, minor = 0; __be32 *p; int ret = 0; *rdev = MKDEV(0,0); if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { dev_t tmp; p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; major = be32_to_cpup(p++); minor = be32_to_cpup(p); tmp = MKDEV(major, minor); if (MAJOR(tmp) == major && MINOR(tmp) == minor) *rdev = tmp; bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; ret = NFS_ATTR_FATTR_RDEV; } dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); return ret; } static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) { __be32 *p; int status = 0; *res = 0; if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; xdr_decode_hyper(p, res); bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; } dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); return status; } static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) { __be32 *p; int status = 0; *res = 0; if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; xdr_decode_hyper(p, res); bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; } dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); return status; } static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) { __be32 *p; int status = 0; *res = 0; if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; xdr_decode_hyper(p, res); bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; } dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); return status; } static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) { __be32 *p; int ret = 0; *used = 0; if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; xdr_decode_hyper(p, used); bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; ret = NFS_ATTR_FATTR_SPACE_USED; } dprintk("%s: space used=%Lu\n", __func__, (unsigned long long)*used); return ret; } static __be32 * xdr_decode_nfstime4(__be32 *p, struct timespec64 *t) { __u64 sec; p = xdr_decode_hyper(p, &sec); t-> tv_sec = sec; t->tv_nsec = be32_to_cpup(p++); return p; } static int decode_attr_time(struct xdr_stream *xdr, struct timespec64 *time) { __be32 *p; p = xdr_inline_decode(xdr, nfstime4_maxsz << 2); if (unlikely(!p)) return -EIO; xdr_decode_nfstime4(p, time); return 0; } static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec64 *time) { int status = 0; time->tv_sec = 0; time->tv_nsec = 0; if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { status = decode_attr_time(xdr, time); if (status == 0) status = NFS_ATTR_FATTR_ATIME; bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; } dprintk("%s: atime=%lld\n", __func__, time->tv_sec); return status; } static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec64 *time) { int status = 0; time->tv_sec = 0; time->tv_nsec = 0; if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { status = decode_attr_time(xdr, time); if (status == 0) status = NFS_ATTR_FATTR_CTIME; bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; } dprintk("%s: ctime=%lld\n", __func__, time->tv_sec); return status; } static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec64 *time) { int status = 0; time->tv_sec = 0; time->tv_nsec = 0; if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U))) return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) { status = decode_attr_time(xdr, time); bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA; } dprintk("%s: time_delta=%lld %ld\n", __func__, time->tv_sec, time->tv_nsec); return status; } static int decode_attr_security_label(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_label *label) { uint32_t pi = 0; uint32_t lfs = 0; __u32 len; __be32 *p; int status = 0; if (unlikely(bitmap[2] & (FATTR4_WORD2_SECURITY_LABEL - 1U))) return -EIO; if (likely(bitmap[2] & FATTR4_WORD2_SECURITY_LABEL)) { p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; lfs = be32_to_cpup(p++); p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; pi = be32_to_cpup(p++); p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; len = be32_to_cpup(p++); p = xdr_inline_decode(xdr, len); if (unlikely(!p)) return -EIO; bitmap[2] &= ~FATTR4_WORD2_SECURITY_LABEL; if (len < NFS4_MAXLABELLEN) { if (label && label->len) { if (label->len < len) return -ERANGE; memcpy(label->label, p, len); label->len = len; label->pi = pi; label->lfs = lfs; status = NFS_ATTR_FATTR_V4_SECURITY_LABEL; } } else printk(KERN_WARNING "%s: label too long (%u)!\n", __func__, len); if (label && label->label) dprintk("%s: label=%.*s, len=%d, PI=%d, LFS=%d\n", __func__, label->len, (char *)label->label, label->len, label->pi, label->lfs); } return status; } static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec64 *time) { int status = 0; time->tv_sec = 0; time->tv_nsec = 0; if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { status = decode_attr_time(xdr, time); if (status == 0) status = NFS_ATTR_FATTR_MTIME; bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; } dprintk("%s: mtime=%lld\n", __func__, time->tv_sec); return status; } static int decode_attr_xattrsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) { __be32 *p; *res = 0; if (unlikely(bitmap[2] & (FATTR4_WORD2_XATTR_SUPPORT - 1U))) return -EIO; if (likely(bitmap[2] & FATTR4_WORD2_XATTR_SUPPORT)) { p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; *res = be32_to_cpup(p); bitmap[2] &= ~FATTR4_WORD2_XATTR_SUPPORT; } dprintk("%s: XATTR support=%s\n", __func__, *res == 0 ? "false" : "true"); return 0; } static int decode_attr_open_arguments(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_open_caps *res) { memset(res, 0, sizeof(*res)); if (unlikely(bitmap[2] & (FATTR4_WORD2_OPEN_ARGUMENTS - 1U))) return -EIO; if (likely(bitmap[2] & FATTR4_WORD2_OPEN_ARGUMENTS)) { if (decode_bitmap4(xdr, res->oa_share_access, ARRAY_SIZE(res->oa_share_access)) < 0) return -EIO; if (decode_bitmap4(xdr, res->oa_share_deny, ARRAY_SIZE(res->oa_share_deny)) < 0) return -EIO; if (decode_bitmap4(xdr, res->oa_share_access_want, ARRAY_SIZE(res->oa_share_access_want)) < 0) return -EIO; if (decode_bitmap4(xdr, res->oa_open_claim, ARRAY_SIZE(res->oa_open_claim)) < 0) return -EIO; if (decode_bitmap4(xdr, res->oa_createmode, ARRAY_SIZE(res->oa_createmode)) < 0) return -EIO; bitmap[2] &= ~FATTR4_WORD2_OPEN_ARGUMENTS; } return 0; } static int verify_attr_len(struct xdr_stream *xdr, unsigned int savep, uint32_t attrlen) { unsigned int attrwords = XDR_QUADLEN(attrlen); unsigned int nwords = (xdr_stream_pos(xdr) - savep) >> 2; if (unlikely(attrwords != nwords)) { dprintk("%s: server returned incorrect attribute length: " "%u %c %u\n", __func__, attrwords << 2, (attrwords < nwords) ? '<' : '>', nwords << 2); return -EIO; } return 0; } static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) { __be32 *p; p = xdr_inline_decode(xdr, 20); if (unlikely(!p)) return -EIO; cinfo->atomic = be32_to_cpup(p++); p = xdr_decode_hyper(p, &cinfo->before); xdr_decode_hyper(p, &cinfo->after); return 0; } static int decode_access(struct xdr_stream *xdr, u32 *supported, u32 *access) { __be32 *p; uint32_t supp, acc; int status; status = decode_op_hdr(xdr, OP_ACCESS); if (status) return status; p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; supp = be32_to_cpup(p++); acc = be32_to_cpup(p); *supported = supp; *access = acc; return 0; } static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) { ssize_t ret = xdr_stream_decode_opaque_fixed(xdr, buf, len); if (unlikely(ret < 0)) return -EIO; return 0; } static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) { return decode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); } static int decode_open_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) { stateid->type = NFS4_OPEN_STATEID_TYPE; return decode_stateid(xdr, stateid); } static int decode_lock_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) { stateid->type = NFS4_LOCK_STATEID_TYPE; return decode_stateid(xdr, stateid); } static int decode_delegation_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) { stateid->type = NFS4_DELEGATION_STATEID_TYPE; return decode_stateid(xdr, stateid); } static int decode_invalid_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) { nfs4_stateid dummy; nfs4_stateid_copy(stateid, &invalid_stateid); return decode_stateid(xdr, &dummy); } static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) { int status; status = decode_op_hdr(xdr, OP_CLOSE); if (status != -EIO) nfs_increment_open_seqid(status, res->seqid); if (!status) status = decode_invalid_stateid(xdr, &res->stateid); return status; } static int decode_verifier(struct xdr_stream *xdr, void *verifier) { return decode_opaque_fixed(xdr, verifier, NFS4_VERIFIER_SIZE); } static int decode_write_verifier(struct xdr_stream *xdr, struct nfs_write_verifier *verifier) { return decode_opaque_fixed(xdr, verifier->data, NFS4_VERIFIER_SIZE); } static int decode_commit(struct xdr_stream *xdr, struct nfs_commitres *res) { struct nfs_writeverf *verf = res->verf; int status; status = decode_op_hdr(xdr, OP_COMMIT); if (!status) status = decode_write_verifier(xdr, &verf->verifier); if (!status) verf->committed = NFS_FILE_SYNC; return status; } static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) { __be32 *p; uint32_t bmlen; int status; status = decode_op_hdr(xdr, OP_CREATE); if (status) return status; if ((status = decode_change_info(xdr, cinfo))) return status; p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; bmlen = be32_to_cpup(p); p = xdr_inline_decode(xdr, bmlen << 2); if (likely(p)) return 0; return -EIO; } static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) { unsigned int savep; uint32_t attrlen, bitmap[3] = {0}; int status; if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) goto xdr_error; if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) goto xdr_error; if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) goto xdr_error; if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) goto xdr_error; if ((status = decode_attr_fh_expire_type(xdr, bitmap, &res->fh_expire_type)) != 0) goto xdr_error; if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) goto xdr_error; if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) goto xdr_error; if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) goto xdr_error; if ((status = decode_attr_case_insensitive(xdr, bitmap, &res->case_insensitive)) != 0) goto xdr_error; if ((status = decode_attr_case_preserving(xdr, bitmap, &res->case_preserving)) != 0) goto xdr_error; if ((status = decode_attr_exclcreat_supported(xdr, bitmap, res->exclcreat_bitmask)) != 0) goto xdr_error; if ((status = decode_attr_open_arguments(xdr, bitmap, &res->open_caps)) != 0) goto xdr_error; status = verify_attr_len(xdr, savep, attrlen); xdr_error: dprintk("%s: xdr returned %d!\n", __func__, -status); return status; } static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) { unsigned int savep; uint32_t attrlen, bitmap[3] = {0}; int status; if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) goto xdr_error; if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) goto xdr_error; if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) goto xdr_error; if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) goto xdr_error; if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) goto xdr_error; if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) goto xdr_error; status = -EIO; if (unlikely(bitmap[0])) goto xdr_error; if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) goto xdr_error; if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) goto xdr_error; if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) goto xdr_error; status = verify_attr_len(xdr, savep, attrlen); xdr_error: dprintk("%s: xdr returned %d!\n", __func__, -status); return status; } static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) { unsigned int savep; uint32_t attrlen, bitmap[3] = {0}; int status; if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) goto xdr_error; if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) goto xdr_error; if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) goto xdr_error; if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) goto xdr_error; if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) goto xdr_error; status = verify_attr_len(xdr, savep, attrlen); xdr_error: dprintk("%s: xdr returned %d!\n", __func__, -status); return status; } static int decode_threshold_hint(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res, uint32_t hint_bit) { __be32 *p; *res = 0; if (likely(bitmap[0] & hint_bit)) { p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; xdr_decode_hyper(p, res); } return 0; } static int decode_first_threshold_item4(struct xdr_stream *xdr, struct nfs4_threshold *res) { __be32 *p; unsigned int savep; uint32_t bitmap[3] = {0,}, attrlen; int status; /* layout type */ p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; res->l_type = be32_to_cpup(p); /* thi_hintset bitmap */ status = decode_attr_bitmap(xdr, bitmap); if (status < 0) goto xdr_error; /* thi_hintlist length */ status = decode_attr_length(xdr, &attrlen, &savep); if (status < 0) goto xdr_error; /* thi_hintlist */ status = decode_threshold_hint(xdr, bitmap, &res->rd_sz, THRESHOLD_RD); if (status < 0) goto xdr_error; status = decode_threshold_hint(xdr, bitmap, &res->wr_sz, THRESHOLD_WR); if (status < 0) goto xdr_error; status = decode_threshold_hint(xdr, bitmap, &res->rd_io_sz, THRESHOLD_RD_IO); if (status < 0) goto xdr_error; status = decode_threshold_hint(xdr, bitmap, &res->wr_io_sz, THRESHOLD_WR_IO); if (status < 0) goto xdr_error; status = verify_attr_len(xdr, savep, attrlen); res->bm = bitmap[0]; dprintk("%s bm=0x%x rd_sz=%llu wr_sz=%llu rd_io=%llu wr_io=%llu\n", __func__, res->bm, res->rd_sz, res->wr_sz, res->rd_io_sz, res->wr_io_sz); xdr_error: dprintk("%s ret=%d!\n", __func__, status); return status; } /* * Thresholds on pNFS direct I/O vrs MDS I/O */ static int decode_attr_mdsthreshold(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_threshold *res) { __be32 *p; int status = 0; uint32_t num; if (unlikely(bitmap[2] & (FATTR4_WORD2_MDSTHRESHOLD - 1U))) return -EIO; if (bitmap[2] & FATTR4_WORD2_MDSTHRESHOLD) { /* Did the server return an unrequested attribute? */ if (unlikely(res == NULL)) return -EREMOTEIO; p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; num = be32_to_cpup(p); if (num == 0) return 0; if (num > 1) printk(KERN_INFO "%s: Warning: Multiple pNFS layout " "drivers per filesystem not supported\n", __func__); status = decode_first_threshold_item4(xdr, res); bitmap[2] &= ~FATTR4_WORD2_MDSTHRESHOLD; } return status; } static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fattr *fattr, struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc, const struct nfs_server *server) { int status; umode_t fmode = 0; uint32_t type; int32_t err; status = decode_attr_type(xdr, bitmap, &type); if (status < 0) goto xdr_error; fattr->mode = 0; if (status != 0) { fattr->mode |= nfs_type2fmt[type]; fattr->valid |= status; } status = decode_attr_change(xdr, bitmap, &fattr->change_attr); if (status < 0) goto xdr_error; fattr->valid |= status; status = decode_attr_size(xdr, bitmap, &fattr->size); if (status < 0) goto xdr_error; fattr->valid |= status; status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); if (status < 0) goto xdr_error; fattr->valid |= status; err = 0; status = decode_attr_error(xdr, bitmap, &err); if (status < 0) goto xdr_error; status = decode_attr_filehandle(xdr, bitmap, fh); if (status < 0) goto xdr_error; status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); if (status < 0) goto xdr_error; fattr->valid |= status; status = decode_attr_fs_locations(xdr, bitmap, fs_loc); if (status < 0) goto xdr_error; fattr->valid |= status; status = -EIO; if (unlikely(bitmap[0])) goto xdr_error; status = decode_attr_mode(xdr, bitmap, &fmode); if (status < 0) goto xdr_error; if (status != 0) { fattr->mode |= fmode; fattr->valid |= status; } status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); if (status < 0) goto xdr_error; fattr->valid |= status; status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name); if (status < 0) goto xdr_error; fattr->valid |= status; status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name); if (status < 0) goto xdr_error; fattr->valid |= status; status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); if (status < 0) goto xdr_error; fattr->valid |= status; status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); if (status < 0) goto xdr_error; fattr->valid |= status; status = decode_attr_time_access(xdr, bitmap, &fattr->atime); if (status < 0) goto xdr_error; fattr->valid |= status; status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); if (status < 0) goto xdr_error; fattr->valid |= status; status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); if (status < 0) goto xdr_error; fattr->valid |= status; status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid); if (status < 0) goto xdr_error; fattr->valid |= status; status = -EIO; if (unlikely(bitmap[1])) goto xdr_error; status = decode_attr_mdsthreshold(xdr, bitmap, fattr->mdsthreshold); if (status < 0) goto xdr_error; status = decode_attr_security_label(xdr, bitmap, fattr->label); if (status < 0) goto xdr_error; fattr->valid |= status; xdr_error: dprintk("%s: xdr returned %d\n", __func__, -status); return status; } static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc, const struct nfs_server *server) { unsigned int savep; uint32_t attrlen, bitmap[3] = {0}; int status; status = decode_op_hdr(xdr, OP_GETATTR); if (status < 0) goto xdr_error; status = decode_attr_bitmap(xdr, bitmap); if (status < 0) goto xdr_error; status = decode_attr_length(xdr, &attrlen, &savep); if (status < 0) goto xdr_error; status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, fs_loc, server); if (status < 0) goto xdr_error; status = verify_attr_len(xdr, savep, attrlen); xdr_error: dprintk("%s: xdr returned %d\n", __func__, -status); return status; } static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) { return decode_getfattr_generic(xdr, fattr, NULL, NULL, server); } /* * Decode potentially multiple layout types. */ static int decode_pnfs_layout_types(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) { __be32 *p; uint32_t i; p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; fsinfo->nlayouttypes = be32_to_cpup(p); /* pNFS is not supported by the underlying file system */ if (fsinfo->nlayouttypes == 0) return 0; /* Decode and set first layout type, move xdr->p past unused types */ p = xdr_inline_decode(xdr, fsinfo->nlayouttypes * 4); if (unlikely(!p)) return -EIO; /* If we get too many, then just cap it at the max */ if (fsinfo->nlayouttypes > NFS_MAX_LAYOUT_TYPES) { printk(KERN_INFO "NFS: %s: Warning: Too many (%u) pNFS layout types\n", __func__, fsinfo->nlayouttypes); fsinfo->nlayouttypes = NFS_MAX_LAYOUT_TYPES; } for(i = 0; i < fsinfo->nlayouttypes; ++i) fsinfo->layouttype[i] = be32_to_cpup(p++); return 0; } /* * The type of file system exported. * Note we must ensure that layouttype is set in any non-error case. */ static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsinfo *fsinfo) { int status = 0; dprintk("%s: bitmap is %x\n", __func__, bitmap[1]); if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) return -EIO; if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { status = decode_pnfs_layout_types(xdr, fsinfo); bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; } return status; } /* * The prefered block size for layout directed io */ static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) { __be32 *p; dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); *res = 0; if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) { p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; *res = be32_to_cpup(p); bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE; } return 0; } /* * The granularity of a CLONE operation. */ static int decode_attr_clone_blksize(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) { __be32 *p; dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); *res = 0; if (bitmap[2] & FATTR4_WORD2_CLONE_BLKSIZE) { p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; *res = be32_to_cpup(p); bitmap[2] &= ~FATTR4_WORD2_CLONE_BLKSIZE; } return 0; } static int decode_attr_change_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, enum nfs4_change_attr_type *res) { u32 tmp = NFS4_CHANGE_TYPE_IS_UNDEFINED; dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); if (bitmap[2] & FATTR4_WORD2_CHANGE_ATTR_TYPE) { if (xdr_stream_decode_u32(xdr, &tmp)) return -EIO; bitmap[2] &= ~FATTR4_WORD2_CHANGE_ATTR_TYPE; } switch(tmp) { case NFS4_CHANGE_TYPE_IS_MONOTONIC_INCR: case NFS4_CHANGE_TYPE_IS_VERSION_COUNTER: case NFS4_CHANGE_TYPE_IS_VERSION_COUNTER_NOPNFS: case NFS4_CHANGE_TYPE_IS_TIME_METADATA: *res = tmp; break; default: *res = NFS4_CHANGE_TYPE_IS_UNDEFINED; } return 0; } static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) { unsigned int savep; uint32_t attrlen, bitmap[3]; int status; if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) goto xdr_error; if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) goto xdr_error; if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) goto xdr_error; fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) goto xdr_error; if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) goto xdr_error; if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) goto xdr_error; fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) goto xdr_error; fsinfo->wtpref = fsinfo->wtmax; status = -EIO; if (unlikely(bitmap[0])) goto xdr_error; status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); if (status != 0) goto xdr_error; status = decode_attr_pnfstype(xdr, bitmap, fsinfo); if (status != 0) goto xdr_error; status = -EIO; if (unlikely(bitmap[1])) goto xdr_error; status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize); if (status) goto xdr_error; status = decode_attr_clone_blksize(xdr, bitmap, &fsinfo->clone_blksize); if (status) goto xdr_error; status = decode_attr_change_attr_type(xdr, bitmap, &fsinfo->change_attr_type); if (status) goto xdr_error; status = decode_attr_xattrsupport(xdr, bitmap, &fsinfo->xattr_support); if (status) goto xdr_error; status = verify_attr_len(xdr, savep, attrlen); xdr_error: dprintk("%s: xdr returned %d!\n", __func__, -status); return status; } static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) { __be32 *p; uint32_t len; int status; /* Zero handle first to allow comparisons */ memset(fh, 0, sizeof(*fh)); status = decode_op_hdr(xdr, OP_GETFH); if (status) return status; p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; len = be32_to_cpup(p); if (len > NFS4_FHSIZE || len == 0) { trace_nfs4_xdr_bad_filehandle(xdr, OP_GETFH, NFS4ERR_BADHANDLE); return -EREMOTEIO; } fh->size = len; p = xdr_inline_decode(xdr, len); if (unlikely(!p)) return -EIO; memcpy(fh->data, p, len); return 0; } static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) { int status; status = decode_op_hdr(xdr, OP_LINK); if (status) return status; return decode_change_info(xdr, cinfo); } /* * We create the owner, so we know a proper owner.id length is 4. */ static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) { uint64_t offset, length, clientid; __be32 *p; uint32_t namelen, type; p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ if (unlikely(!p)) return -EIO; p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ p = xdr_decode_hyper(p, &length); type = be32_to_cpup(p++); /* 4 byte read */ if (fl != NULL) { /* manipulate file lock */ fl->fl_start = (loff_t)offset; fl->fl_end = fl->fl_start + (loff_t)length - 1; if (length == ~(uint64_t)0) fl->fl_end = OFFSET_MAX; fl->c.flc_type = F_WRLCK; if (type & 1) fl->c.flc_type = F_RDLCK; fl->c.flc_pid = 0; } p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ p = xdr_inline_decode(xdr, namelen); /* variable size field */ if (likely(!p)) return -EIO; return -NFS4ERR_DENIED; } static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) { int status; status = decode_op_hdr(xdr, OP_LOCK); if (status == -EIO) goto out; if (status == 0) { status = decode_lock_stateid(xdr, &res->stateid); if (unlikely(status)) goto out; } else if (status == -NFS4ERR_DENIED) status = decode_lock_denied(xdr, NULL); if (res->open_seqid != NULL) nfs_increment_open_seqid(status, res->open_seqid); nfs_increment_lock_seqid(status, res->lock_seqid); out: return status; } static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) { int status; status = decode_op_hdr(xdr, OP_LOCKT); if (status == -NFS4ERR_DENIED) return decode_lock_denied(xdr, res->denied); return status; } static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) { int status; status = decode_op_hdr(xdr, OP_LOCKU); if (status != -EIO) nfs_increment_lock_seqid(status, res->seqid); if (status == 0) status = decode_lock_stateid(xdr, &res->stateid); return status; } static int decode_release_lockowner(struct xdr_stream *xdr) { return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); } static int decode_lookup(struct xdr_stream *xdr) { return decode_op_hdr(xdr, OP_LOOKUP); } static int decode_lookupp(struct xdr_stream *xdr) { return decode_op_hdr(xdr, OP_LOOKUPP); } /* This is too sick! */ static int decode_space_limit(struct xdr_stream *xdr, unsigned long *pagemod_limit) { __be32 *p; uint32_t limit_type, nblocks, blocksize; u64 maxsize = 0; p = xdr_inline_decode(xdr, 12); if (unlikely(!p)) return -EIO; limit_type = be32_to_cpup(p++); switch (limit_type) { case NFS4_LIMIT_SIZE: xdr_decode_hyper(p, &maxsize); break; case NFS4_LIMIT_BLOCKS: nblocks = be32_to_cpup(p++); blocksize = be32_to_cpup(p); maxsize = (uint64_t)nblocks * (uint64_t)blocksize; } maxsize >>= PAGE_SHIFT; *pagemod_limit = min_t(u64, maxsize, ULONG_MAX); return 0; } static int decode_rw_delegation(struct xdr_stream *xdr, struct nfs4_open_delegation *res) { __be32 *p; int status; status = decode_delegation_stateid(xdr, &res->stateid); if (unlikely(status)) return status; p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; res->do_recall = be32_to_cpup(p); switch (res->open_delegation_type) { case NFS4_OPEN_DELEGATE_READ: case NFS4_OPEN_DELEGATE_READ_ATTRS_DELEG: res->type = FMODE_READ; break; case NFS4_OPEN_DELEGATE_WRITE: case NFS4_OPEN_DELEGATE_WRITE_ATTRS_DELEG: res->type = FMODE_WRITE|FMODE_READ; if (decode_space_limit(xdr, &res->pagemod_limit) < 0) return -EIO; } return decode_ace(xdr, NULL); } static int decode_no_delegation(struct xdr_stream *xdr, struct nfs4_open_delegation *res) { __be32 *p; p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; res->why_no_delegation = be32_to_cpup(p); switch (res->why_no_delegation) { case WND4_CONTENTION: case WND4_RESOURCE: p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; res->will_notify = be32_to_cpup(p); } return 0; } static int decode_delegation(struct xdr_stream *xdr, struct nfs4_open_delegation *res) { __be32 *p; p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; res->open_delegation_type = be32_to_cpup(p); switch (res->open_delegation_type) { case NFS4_OPEN_DELEGATE_NONE: return 0; case NFS4_OPEN_DELEGATE_READ: case NFS4_OPEN_DELEGATE_WRITE: case NFS4_OPEN_DELEGATE_READ_ATTRS_DELEG: case NFS4_OPEN_DELEGATE_WRITE_ATTRS_DELEG: return decode_rw_delegation(xdr, res); case NFS4_OPEN_DELEGATE_NONE_EXT: return decode_no_delegation(xdr, res); } return -EIO; } static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) { __be32 *p; uint32_t savewords, bmlen, i; int status; if (!__decode_op_hdr(xdr, OP_OPEN, &status)) return status; nfs_increment_open_seqid(status, res->seqid); if (status) return status; status = decode_open_stateid(xdr, &res->stateid); if (unlikely(status)) return status; decode_change_info(xdr, &res->cinfo); p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; res->rflags = be32_to_cpup(p++); bmlen = be32_to_cpup(p); if (bmlen > 10) goto xdr_error; p = xdr_inline_decode(xdr, bmlen << 2); if (unlikely(!p)) return -EIO; savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); for (i = 0; i < savewords; ++i) res->attrset[i] = be32_to_cpup(p++); for (; i < NFS4_BITMAP_SIZE; i++) res->attrset[i] = 0; return decode_delegation(xdr, &res->delegation); xdr_error: dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); return -EIO; } static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) { int status; status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); if (status != -EIO) nfs_increment_open_seqid(status, res->seqid); if (!status) status = decode_open_stateid(xdr, &res->stateid); return status; } static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) { int status; status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); if (status != -EIO) nfs_increment_open_seqid(status, res->seqid); if (!status) status = decode_open_stateid(xdr, &res->stateid); return status; } static int decode_putfh(struct xdr_stream *xdr) { return decode_op_hdr(xdr, OP_PUTFH); } static int decode_putrootfh(struct xdr_stream *xdr) { return decode_op_hdr(xdr, OP_PUTROOTFH); } static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_pgio_res *res) { __be32 *p; uint32_t count, eof, recvd; int status; status = decode_op_hdr(xdr, OP_READ); if (status) return status; p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; eof = be32_to_cpup(p++); count = be32_to_cpup(p); recvd = xdr_read_pages(xdr, count); if (count > recvd) { dprintk("NFS: server cheating in read reply: " "count %u > recvd %u\n", count, recvd); count = recvd; eof = 0; } res->eof = eof; res->count = count; return 0; } static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) { int status; __be32 verf[2]; status = decode_op_hdr(xdr, OP_READDIR); if (!status) status = decode_verifier(xdr, readdir->verifier.data); if (unlikely(status)) return status; memcpy(verf, readdir->verifier.data, sizeof(verf)); dprintk("%s: verifier = %08x:%08x\n", __func__, verf[0], verf[1]); return xdr_read_pages(xdr, xdr->buf->page_len); } static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) { struct xdr_buf *rcvbuf = &req->rq_rcv_buf; u32 len, recvd; __be32 *p; int status; status = decode_op_hdr(xdr, OP_READLINK); if (status) return status; /* Convert length of symlink */ p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; len = be32_to_cpup(p); if (len >= rcvbuf->page_len || len <= 0) { dprintk("nfs: server returned giant symlink!\n"); return -ENAMETOOLONG; } recvd = xdr_read_pages(xdr, len); if (recvd < len) { dprintk("NFS: server cheating in readlink reply: " "count %u > recvd %u\n", len, recvd); return -EIO; } /* * The XDR encode routine has set things up so that * the link text will be copied directly into the * buffer. We just have to do overflow-checking, * and null-terminate the text (the VFS expects * null-termination). */ xdr_terminate_string(rcvbuf, len); return 0; } static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) { int status; status = decode_op_hdr(xdr, OP_REMOVE); if (status) goto out; status = decode_change_info(xdr, cinfo); out: return status; } static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, struct nfs4_change_info *new_cinfo) { int status; status = decode_op_hdr(xdr, OP_RENAME); if (status) goto out; if ((status = decode_change_info(xdr, old_cinfo))) goto out; status = decode_change_info(xdr, new_cinfo); out: return status; } static int decode_renew(struct xdr_stream *xdr) { return decode_op_hdr(xdr, OP_RENEW); } static int decode_restorefh(struct xdr_stream *xdr) { return decode_op_hdr(xdr, OP_RESTOREFH); } static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_getaclres *res, enum nfs4_acl_type type) { unsigned int savep; uint32_t attrlen, bitmap[3] = {0}; int status; res->acl_len = 0; if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) goto out; xdr_enter_page(xdr, xdr->buf->page_len); if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) goto out; if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) goto out; switch (type) { default: if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) return -EIO; if (!(bitmap[0] & FATTR4_WORD0_ACL)) return -EOPNOTSUPP; break; case NFS4ACL_DACL: if (unlikely(bitmap[0] || bitmap[1] & (FATTR4_WORD1_DACL - 1U))) return -EIO; if (!(bitmap[1] & FATTR4_WORD1_DACL)) return -EOPNOTSUPP; break; case NFS4ACL_SACL: if (unlikely(bitmap[0] || bitmap[1] & (FATTR4_WORD1_SACL - 1U))) return -EIO; if (!(bitmap[1] & FATTR4_WORD1_SACL)) return -EOPNOTSUPP; } /* The bitmap (xdr len + bitmaps) and the attr xdr len words * are stored with the acl data to handle the problem of * variable length bitmaps.*/ res->acl_data_offset = xdr_page_pos(xdr); res->acl_len = attrlen; /* Check for receive buffer overflow */ if (res->acl_len > xdr_stream_remaining(xdr) || res->acl_len + res->acl_data_offset > xdr->buf->page_len) { res->acl_flags |= NFS4_ACL_TRUNC; dprintk("NFS: acl reply: attrlen %u > page_len %zu\n", attrlen, xdr_stream_remaining(xdr)); } out: return status; } static int decode_savefh(struct xdr_stream *xdr) { return decode_op_hdr(xdr, OP_SAVEFH); } static int decode_setattr(struct xdr_stream *xdr) { int status; status = decode_op_hdr(xdr, OP_SETATTR); if (status) return status; if (decode_bitmap4(xdr, NULL, 0) >= 0) return 0; return -EIO; } static int decode_delegattr(struct xdr_stream *xdr) { return decode_setattr(xdr); } static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) { __be32 *p; uint32_t opnum; int32_t nfserr; p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; opnum = be32_to_cpup(p++); if (opnum != OP_SETCLIENTID) { dprintk("nfs: decode_setclientid: Server returned operation" " %d\n", opnum); return -EIO; } nfserr = be32_to_cpup(p); if (nfserr == NFS_OK) { p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); if (unlikely(!p)) return -EIO; p = xdr_decode_hyper(p, &res->clientid); memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); } else if (nfserr == NFSERR_CLID_INUSE) { uint32_t len; /* skip netid string */ p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; len = be32_to_cpup(p); p = xdr_inline_decode(xdr, len); if (unlikely(!p)) return -EIO; /* skip uaddr string */ p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; len = be32_to_cpup(p); p = xdr_inline_decode(xdr, len); if (unlikely(!p)) return -EIO; return -NFSERR_CLID_INUSE; } else return nfs4_stat_to_errno(nfserr); return 0; } static int decode_setclientid_confirm(struct xdr_stream *xdr) { return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); } static int decode_write(struct xdr_stream *xdr, struct nfs_pgio_res *res) { __be32 *p; int status; status = decode_op_hdr(xdr, OP_WRITE); if (status) return status; p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; res->count = be32_to_cpup(p++); res->verf->committed = be32_to_cpup(p++); return decode_write_verifier(xdr, &res->verf->verifier); } static int decode_delegreturn(struct xdr_stream *xdr) { return decode_op_hdr(xdr, OP_DELEGRETURN); } static int decode_secinfo_gss(struct xdr_stream *xdr, struct nfs4_secinfo4 *flavor) { u32 oid_len; __be32 *p; p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; oid_len = be32_to_cpup(p); if (oid_len > GSS_OID_MAX_LEN) return -EINVAL; p = xdr_inline_decode(xdr, oid_len); if (unlikely(!p)) return -EIO; memcpy(flavor->flavor_info.oid.data, p, oid_len); flavor->flavor_info.oid.len = oid_len; p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; flavor->flavor_info.qop = be32_to_cpup(p++); flavor->flavor_info.service = be32_to_cpup(p); return 0; } static int decode_secinfo_common(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) { struct nfs4_secinfo4 *sec_flavor; unsigned int i, num_flavors; int status; __be32 *p; p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; res->flavors->num_flavors = 0; num_flavors = be32_to_cpup(p); for (i = 0; i < num_flavors; i++) { sec_flavor = &res->flavors->flavors[i]; if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE) break; p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; sec_flavor->flavor = be32_to_cpup(p); if (sec_flavor->flavor == RPC_AUTH_GSS) { status = decode_secinfo_gss(xdr, sec_flavor); if (status) goto out; } res->flavors->num_flavors++; } status = 0; out: return status; } static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) { int status = decode_op_hdr(xdr, OP_SECINFO); if (status) return status; return decode_secinfo_common(xdr, res); } #if defined(CONFIG_NFS_V4_1) static int decode_secinfo_no_name(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) { int status = decode_op_hdr(xdr, OP_SECINFO_NO_NAME); if (status) return status; return decode_secinfo_common(xdr, res); } static int decode_op_map(struct xdr_stream *xdr, struct nfs4_op_map *op_map) { if (xdr_stream_decode_uint32_array(xdr, op_map->u.words, ARRAY_SIZE(op_map->u.words)) < 0) return -EIO; return 0; } static int decode_exchange_id(struct xdr_stream *xdr, struct nfs41_exchange_id_res *res) { __be32 *p; uint32_t dummy; char *dummy_str; int status; uint32_t impl_id_count; status = decode_op_hdr(xdr, OP_EXCHANGE_ID); if (status) return status; p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; xdr_decode_hyper(p, &res->clientid); p = xdr_inline_decode(xdr, 12); if (unlikely(!p)) return -EIO; res->seqid = be32_to_cpup(p++); res->flags = be32_to_cpup(p++); res->state_protect.how = be32_to_cpup(p); switch (res->state_protect.how) { case SP4_NONE: break; case SP4_MACH_CRED: status = decode_op_map(xdr, &res->state_protect.enforce); if (status) return status; status = decode_op_map(xdr, &res->state_protect.allow); if (status) return status; break; default: WARN_ON_ONCE(1); return -EIO; } /* server_owner4.so_minor_id */ p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; p = xdr_decode_hyper(p, &res->server_owner->minor_id); /* server_owner4.so_major_id */ status = decode_opaque_inline(xdr, &dummy, &dummy_str); if (unlikely(status)) return status; memcpy(res->server_owner->major_id, dummy_str, dummy); res->server_owner->major_id_sz = dummy; /* server_scope4 */ status = decode_opaque_inline(xdr, &dummy, &dummy_str); if (unlikely(status)) return status; memcpy(res->server_scope->server_scope, dummy_str, dummy); res->server_scope->server_scope_sz = dummy; /* Implementation Id */ p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; impl_id_count = be32_to_cpup(p++); if (impl_id_count) { /* nii_domain */ status = decode_opaque_inline(xdr, &dummy, &dummy_str); if (unlikely(status)) return status; memcpy(res->impl_id->domain, dummy_str, dummy); /* nii_name */ status = decode_opaque_inline(xdr, &dummy, &dummy_str); if (unlikely(status)) return status; memcpy(res->impl_id->name, dummy_str, dummy); /* nii_date */ p = xdr_inline_decode(xdr, 12); if (unlikely(!p)) return -EIO; p = xdr_decode_hyper(p, &res->impl_id->date.seconds); res->impl_id->date.nseconds = be32_to_cpup(p); /* if there's more than one entry, ignore the rest */ } return 0; } static int decode_chan_attrs(struct xdr_stream *xdr, struct nfs4_channel_attrs *attrs) { __be32 *p; u32 nr_attrs, val; p = xdr_inline_decode(xdr, 28); if (unlikely(!p)) return -EIO; val = be32_to_cpup(p++); /* headerpadsz */ if (val) return -EINVAL; /* no support for header padding yet */ attrs->max_rqst_sz = be32_to_cpup(p++); attrs->max_resp_sz = be32_to_cpup(p++); attrs->max_resp_sz_cached = be32_to_cpup(p++); attrs->max_ops = be32_to_cpup(p++); attrs->max_reqs = be32_to_cpup(p++); nr_attrs = be32_to_cpup(p); if (unlikely(nr_attrs > 1)) { printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs " "count %u\n", __func__, nr_attrs); return -EINVAL; } if (nr_attrs == 1) { p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ if (unlikely(!p)) return -EIO; } return 0; } static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) { return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); } static int decode_bind_conn_to_session(struct xdr_stream *xdr, struct nfs41_bind_conn_to_session_res *res) { __be32 *p; int status; status = decode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION); if (!status) status = decode_sessionid(xdr, &res->sessionid); if (unlikely(status)) return status; /* dir flags, rdma mode bool */ p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; res->dir = be32_to_cpup(p++); if (res->dir == 0 || res->dir > NFS4_CDFS4_BOTH) return -EIO; if (be32_to_cpup(p) == 0) res->use_conn_in_rdma_mode = false; else res->use_conn_in_rdma_mode = true; return 0; } static int decode_create_session(struct xdr_stream *xdr, struct nfs41_create_session_res *res) { __be32 *p; int status; status = decode_op_hdr(xdr, OP_CREATE_SESSION); if (!status) status = decode_sessionid(xdr, &res->sessionid); if (unlikely(status)) return status; /* seqid, flags */ p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; res->seqid = be32_to_cpup(p++); res->flags = be32_to_cpup(p); /* Channel attributes */ status = decode_chan_attrs(xdr, &res->fc_attrs); if (!status) status = decode_chan_attrs(xdr, &res->bc_attrs); return status; } static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) { return decode_op_hdr(xdr, OP_DESTROY_SESSION); } static int decode_destroy_clientid(struct xdr_stream *xdr, void *dummy) { return decode_op_hdr(xdr, OP_DESTROY_CLIENTID); } static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) { return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); } #endif /* CONFIG_NFS_V4_1 */ static int decode_sequence(struct xdr_stream *xdr, struct nfs4_sequence_res *res, struct rpc_rqst *rqstp) { #if defined(CONFIG_NFS_V4_1) struct nfs4_session *session; struct nfs4_sessionid id; u32 dummy; int status; __be32 *p; if (res->sr_slot == NULL) return 0; if (!res->sr_slot->table->session) return 0; status = decode_op_hdr(xdr, OP_SEQUENCE); if (!status) status = decode_sessionid(xdr, &id); if (unlikely(status)) goto out_err; /* * If the server returns different values for sessionID, slotID or * sequence number, the server is looney tunes. */ status = -EREMOTEIO; session = res->sr_slot->table->session; if (memcmp(id.data, session->sess_id.data, NFS4_MAX_SESSIONID_LEN)) { dprintk("%s Invalid session id\n", __func__); goto out_err; } p = xdr_inline_decode(xdr, 20); if (unlikely(!p)) goto out_overflow; /* seqid */ dummy = be32_to_cpup(p++); if (dummy != res->sr_slot->seq_nr) { dprintk("%s Invalid sequence number\n", __func__); goto out_err; } /* slot id */ dummy = be32_to_cpup(p++); if (dummy != res->sr_slot->slot_nr) { dprintk("%s Invalid slot id\n", __func__); goto out_err; } /* highest slot id */ res->sr_highest_slotid = be32_to_cpup(p++); /* target highest slot id */ res->sr_target_highest_slotid = be32_to_cpup(p++); /* result flags */ res->sr_status_flags = be32_to_cpup(p); status = 0; out_err: res->sr_status = status; return status; out_overflow: status = -EIO; goto out_err; #else /* CONFIG_NFS_V4_1 */ return 0; #endif /* CONFIG_NFS_V4_1 */ } #if defined(CONFIG_NFS_V4_1) static int decode_layout_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) { stateid->type = NFS4_LAYOUT_STATEID_TYPE; return decode_stateid(xdr, stateid); } static int decode_getdeviceinfo(struct xdr_stream *xdr, struct nfs4_getdeviceinfo_res *res) { struct pnfs_device *pdev = res->pdev; __be32 *p; uint32_t len, type; int status; status = decode_op_hdr(xdr, OP_GETDEVICEINFO); if (status) { if (status == -ETOOSMALL) { p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; pdev->mincount = be32_to_cpup(p); dprintk("%s: Min count too small. mincnt = %u\n", __func__, pdev->mincount); } return status; } p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; type = be32_to_cpup(p++); if (type != pdev->layout_type) { dprintk("%s: layout mismatch req: %u pdev: %u\n", __func__, pdev->layout_type, type); return -EINVAL; } /* * Get the length of the opaque device_addr4. xdr_read_pages places * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages) * and places the remaining xdr data in xdr_buf->tail */ pdev->mincount = be32_to_cpup(p); if (xdr_read_pages(xdr, pdev->mincount) != pdev->mincount) return -EIO; /* Parse notification bitmap, verifying that it is zero. */ p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; len = be32_to_cpup(p); if (len) { uint32_t i; p = xdr_inline_decode(xdr, 4 * len); if (unlikely(!p)) return -EIO; res->notification = be32_to_cpup(p++); for (i = 1; i < len; i++) { if (be32_to_cpup(p++)) { dprintk("%s: unsupported notification\n", __func__); return -EIO; } } } return 0; } static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_layoutget_res *res) { __be32 *p; int status; u32 layout_count; u32 recvd; status = decode_op_hdr(xdr, OP_LAYOUTGET); if (status) goto out; p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) goto out_overflow; res->return_on_close = be32_to_cpup(p); decode_layout_stateid(xdr, &res->stateid); p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) goto out_overflow; layout_count = be32_to_cpup(p); if (!layout_count) { dprintk("%s: server responded with empty layout array\n", __func__); status = -EINVAL; goto out; } p = xdr_inline_decode(xdr, 28); if (unlikely(!p)) goto out_overflow; p = xdr_decode_hyper(p, &res->range.offset); p = xdr_decode_hyper(p, &res->range.length); res->range.iomode = be32_to_cpup(p++); res->type = be32_to_cpup(p++); res->layoutp->len = be32_to_cpup(p); dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", __func__, (unsigned long)res->range.offset, (unsigned long)res->range.length, res->range.iomode, res->type, res->layoutp->len); recvd = xdr_read_pages(xdr, res->layoutp->len); if (res->layoutp->len > recvd) { dprintk("NFS: server cheating in layoutget reply: " "layout len %u > recvd %u\n", res->layoutp->len, recvd); status = -EINVAL; goto out; } if (layout_count > 1) { /* We only handle a length one array at the moment. Any * further entries are just ignored. Note that this means * the client may see a response that is less than the * minimum it requested. */ dprintk("%s: server responded with %d layouts, dropping tail\n", __func__, layout_count); } out: res->status = status; return status; out_overflow: status = -EIO; goto out; } static int decode_layoutreturn(struct xdr_stream *xdr, struct nfs4_layoutreturn_res *res) { __be32 *p; int status; status = decode_op_hdr(xdr, OP_LAYOUTRETURN); if (status) return status; p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; res->lrs_present = be32_to_cpup(p); if (res->lrs_present) status = decode_layout_stateid(xdr, &res->stateid); else nfs4_stateid_copy(&res->stateid, &invalid_stateid); return status; } static int decode_layoutcommit(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_layoutcommit_res *res) { __be32 *p; __u32 sizechanged; int status; status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT); res->status = status; if (status) return status; p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; sizechanged = be32_to_cpup(p); if (sizechanged) { /* throw away new size */ p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; } return 0; } static int decode_test_stateid(struct xdr_stream *xdr, struct nfs41_test_stateid_res *res) { __be32 *p; int status; int num_res; status = decode_op_hdr(xdr, OP_TEST_STATEID); if (status) return status; p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; num_res = be32_to_cpup(p++); if (num_res != 1) return -EIO; p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; res->status = be32_to_cpup(p++); return status; } static int decode_free_stateid(struct xdr_stream *xdr, struct nfs41_free_stateid_res *res) { res->status = decode_op_hdr(xdr, OP_FREE_STATEID); return res->status; } #else static inline int decode_layoutreturn(struct xdr_stream *xdr, struct nfs4_layoutreturn_res *res) { return 0; } static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_layoutget_res *res) { return 0; } #endif /* CONFIG_NFS_V4_1 */ /* * END OF "GENERIC" DECODE ROUTINES. */ /* * Decode OPEN_DOWNGRADE response */ static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs_closeres *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; if (res->lr_res) { status = decode_layoutreturn(xdr, res->lr_res); res->lr_ret = status; if (status) goto out; } status = decode_open_downgrade(xdr, res); out: return status; } /* * Decode ACCESS response */ static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs4_accessres *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status != 0) goto out; status = decode_access(xdr, &res->supported, &res->access); if (status != 0) goto out; if (res->fattr) decode_getfattr(xdr, res->fattr, res->server); out: return status; } /* * Decode LOOKUP response */ static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs4_lookup_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_lookup(xdr); if (status) goto out; status = decode_getfh(xdr, res->fh); if (status) goto out; status = decode_getfattr(xdr, res->fattr, res->server); out: return status; } /* * Decode LOOKUPP response */ static int nfs4_xdr_dec_lookupp(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs4_lookupp_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_lookupp(xdr); if (status) goto out; status = decode_getfh(xdr, res->fh); if (status) goto out; status = decode_getfattr(xdr, res->fattr, res->server); out: return status; } /* * Decode LOOKUP_ROOT response */ static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs4_lookup_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putrootfh(xdr); if (status) goto out; status = decode_getfh(xdr, res->fh); if (status == 0) status = decode_getfattr(xdr, res->fattr, res->server); out: return status; } /* * Decode REMOVE response */ static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs_removeres *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_remove(xdr, &res->cinfo); out: return status; } /* * Decode RENAME response */ static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs_renameres *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_savefh(xdr); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo); out: return status; } /* * Decode LINK response */ static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs4_link_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_savefh(xdr); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_link(xdr, &res->cinfo); if (status) goto out; /* * Note order: OP_LINK leaves the directory as the current * filehandle. */ status = decode_restorefh(xdr); if (status) goto out; decode_getfattr(xdr, res->fattr, res->server); out: return status; } /* * Decode CREATE response */ static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs4_create_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_create(xdr, &res->dir_cinfo); if (status) goto out; status = decode_getfh(xdr, res->fh); if (status) goto out; decode_getfattr(xdr, res->fattr, res->server); out: return status; } /* * Decode SYMLINK response */ static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *res) { return nfs4_xdr_dec_create(rqstp, xdr, res); } /* * Decode GETATTR response */ static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs4_getattr_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_getfattr(xdr, res->fattr, res->server); out: return status; } /* * Encode an SETACL request */ static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs_setaclargs *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); encode_setacl(xdr, args, &hdr); encode_nops(&hdr); } /* * Decode SETACL response */ static int nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs_setaclres *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_setattr(xdr); out: return status; } /* * Decode GETACL response */ static int nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs_getaclres *res = data; struct compound_hdr hdr; int status; if (res->acl_scratch != NULL) xdr_set_scratch_page(xdr, res->acl_scratch); status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_getacl(xdr, rqstp, res, res->acl_type); out: return status; } /* * Decode CLOSE response */ static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs_closeres *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; if (res->lr_res) { status = decode_layoutreturn(xdr, res->lr_res); res->lr_ret = status; if (status) goto out; } if (res->fattr != NULL) { status = decode_getfattr(xdr, res->fattr, res->server); if (status != 0) goto out; } status = decode_close(xdr, res); out: return status; } /* * Decode OPEN response */ static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs_openres *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_open(xdr, res); if (status) goto out; status = decode_getfh(xdr, &res->fh); if (status) goto out; if (res->access_request) decode_access(xdr, &res->access_supported, &res->access_result); decode_getfattr(xdr, res->f_attr, res->server); if (res->lg_res) decode_layoutget(xdr, rqstp, res->lg_res); out: return status; } /* * Decode OPEN_CONFIRM response */ static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs_open_confirmres *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_open_confirm(xdr, res); out: return status; } /* * Decode OPEN response */ static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs_openres *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_open(xdr, res); if (status) goto out; if (res->access_request) decode_access(xdr, &res->access_supported, &res->access_result); decode_getfattr(xdr, res->f_attr, res->server); if (res->lg_res) decode_layoutget(xdr, rqstp, res->lg_res); out: return status; } /* * Decode SETATTR response */ static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs_setattrres *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_setattr(xdr); if (status) goto out; decode_getfattr(xdr, res->fattr, res->server); out: return status; } /* * Decode LOCK response */ static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs_lock_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_lock(xdr, res); out: return status; } /* * Decode LOCKT response */ static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs_lockt_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_lockt(xdr, res); out: return status; } /* * Decode LOCKU response */ static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs_locku_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_locku(xdr, res); out: return status; } static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *dummy) { struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (!status) status = decode_release_lockowner(xdr); return status; } /* * Decode READLINK response */ static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs4_readlink_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_readlink(xdr, rqstp); out: return status; } /* * Decode READDIR response */ static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs4_readdir_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_readdir(xdr, rqstp, res); out: return status; } /* * Decode Read response */ static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs_pgio_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); res->op_status = hdr.status; if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_read(xdr, rqstp, res); if (!status) status = res->count; out: return status; } /* * Decode WRITE response */ static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs_pgio_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); res->op_status = hdr.status; if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_write(xdr, res); if (status) goto out; if (res->fattr) decode_getfattr(xdr, res->fattr, res->server); if (!status) status = res->count; out: return status; } /* * Decode COMMIT response */ static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs_commitres *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); res->op_status = hdr.status; if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_commit(xdr, res); out: return status; } /* * Decode FSINFO response */ static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, void *data) { struct nfs4_fsinfo_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (!status) status = decode_sequence(xdr, &res->seq_res, req); if (!status) status = decode_putfh(xdr); if (!status) status = decode_fsinfo(xdr, res->fsinfo); return status; } /* * Decode PATHCONF response */ static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, void *data) { struct nfs4_pathconf_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (!status) status = decode_sequence(xdr, &res->seq_res, req); if (!status) status = decode_putfh(xdr); if (!status) status = decode_pathconf(xdr, res->pathconf); return status; } /* * Decode STATFS response */ static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, void *data) { struct nfs4_statfs_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (!status) status = decode_sequence(xdr, &res->seq_res, req); if (!status) status = decode_putfh(xdr); if (!status) status = decode_statfs(xdr, res->fsstat); return status; } /* * Decode GETATTR_BITMAP response */ static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, struct xdr_stream *xdr, void *data) { struct nfs4_server_caps_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, req); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_server_caps(xdr, res); out: return status; } /* * Decode RENEW response */ static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *__unused) { struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (!status) status = decode_renew(xdr); return status; } /* * Decode SETCLIENTID response */ static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, struct xdr_stream *xdr, void *data) { struct nfs4_setclientid_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (!status) status = decode_setclientid(xdr, res); return status; } /* * Decode SETCLIENTID_CONFIRM response */ static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, struct xdr_stream *xdr, void *data) { struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (!status) status = decode_setclientid_confirm(xdr); return status; } /* * Decode DELEGRETURN response */ static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs4_delegreturnres *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status != 0) goto out; if (res->lr_res) { status = decode_layoutreturn(xdr, res->lr_res); res->lr_ret = status; if (status) goto out; } if (res->sattr_res) { status = decode_delegattr(xdr); res->sattr_ret = status; if (status) goto out; } if (res->fattr) { status = decode_getfattr(xdr, res->fattr, res->server); if (status != 0) goto out; } status = decode_delegreturn(xdr); out: return status; } /* * Decode FS_LOCATIONS response */ static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, struct xdr_stream *xdr, void *data) { struct nfs4_fs_locations_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, req); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; if (res->migration) { xdr_enter_page(xdr, PAGE_SIZE); status = decode_getfattr_generic(xdr, res->fs_locations->fattr, NULL, res->fs_locations, res->fs_locations->server); if (status) goto out; if (res->renew) status = decode_renew(xdr); } else { status = decode_lookup(xdr); if (status) goto out; xdr_enter_page(xdr, PAGE_SIZE); status = decode_getfattr_generic(xdr, res->fs_locations->fattr, NULL, res->fs_locations, res->fs_locations->server); } out: return status; } /* * Decode SECINFO response */ static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs4_secinfo_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_secinfo(xdr, res); out: return status; } /* * Decode FSID_PRESENT response */ static int nfs4_xdr_dec_fsid_present(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs4_fsid_present_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_getfh(xdr, res->fh); if (status) goto out; if (res->renew) status = decode_renew(xdr); out: return status; } #if defined(CONFIG_NFS_V4_1) /* * Decode BIND_CONN_TO_SESSION response */ static int nfs4_xdr_dec_bind_conn_to_session(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *res) { struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (!status) status = decode_bind_conn_to_session(xdr, res); return status; } /* * Decode EXCHANGE_ID response */ static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *res) { struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (!status) status = decode_exchange_id(xdr, res); return status; } /* * Decode CREATE_SESSION response */ static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *res) { struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (!status) status = decode_create_session(xdr, res); return status; } /* * Decode DESTROY_SESSION response */ static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *res) { struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (!status) status = decode_destroy_session(xdr, res); return status; } /* * Decode DESTROY_CLIENTID response */ static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *res) { struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (!status) status = decode_destroy_clientid(xdr, res); return status; } /* * Decode SEQUENCE response */ static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *res) { struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (!status) status = decode_sequence(xdr, res, rqstp); return status; } #endif /* * Decode GET_LEASE_TIME response */ static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs4_get_lease_time_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (!status) status = decode_sequence(xdr, &res->lr_seq_res, rqstp); if (!status) status = decode_putrootfh(xdr); if (!status) status = decode_fsinfo(xdr, res->lr_fsinfo); return status; } #ifdef CONFIG_NFS_V4_1 /* * Decode RECLAIM_COMPLETE response */ static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs41_reclaim_complete_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (!status) status = decode_sequence(xdr, &res->seq_res, rqstp); if (!status) status = decode_reclaim_complete(xdr, NULL); return status; } /* * Decode GETDEVINFO response */ static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs4_getdeviceinfo_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status != 0) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status != 0) goto out; status = decode_getdeviceinfo(xdr, res); out: return status; } /* * Decode LAYOUTGET response */ static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs4_layoutget_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_layoutget(xdr, rqstp, res); out: return status; } /* * Decode LAYOUTRETURN response */ static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs4_layoutreturn_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_layoutreturn(xdr, res); out: return status; } /* * Decode LAYOUTCOMMIT response */ static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs4_layoutcommit_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_layoutcommit(xdr, rqstp, res); if (status) goto out; decode_getfattr(xdr, res->fattr, res->server); out: return status; } /* * Decode SECINFO_NO_NAME response */ static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs4_secinfo_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_putrootfh(xdr); if (status) goto out; status = decode_secinfo_no_name(xdr, res); out: return status; } /* * Decode TEST_STATEID response */ static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs41_test_stateid_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_test_stateid(xdr, res); out: return status; } /* * Decode FREE_STATEID response */ static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs41_free_stateid_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->seq_res, rqstp); if (status) goto out; status = decode_free_stateid(xdr, res); out: return status; } #endif /* CONFIG_NFS_V4_1 */ /** * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in * the local page cache. * @xdr: XDR stream where entry resides * @entry: buffer to fill in with entry data * @plus: boolean indicating whether this should be a readdirplus entry * * Returns zero if successful, otherwise a negative errno value is * returned. * * This function is not invoked during READDIR reply decoding, but * rather whenever an application invokes the getdents(2) system call * on a directory already in our cache. */ int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, bool plus) { unsigned int savep; uint32_t bitmap[3] = {0}; uint32_t len; uint64_t new_cookie; __be32 *p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EAGAIN; if (*p == xdr_zero) { p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EAGAIN; if (*p == xdr_zero) return -EAGAIN; entry->eof = 1; return -EBADCOOKIE; } p = xdr_inline_decode(xdr, 12); if (unlikely(!p)) return -EAGAIN; p = xdr_decode_hyper(p, &new_cookie); entry->len = be32_to_cpup(p); p = xdr_inline_decode(xdr, entry->len); if (unlikely(!p)) return -EAGAIN; entry->name = (const char *) p; /* * In case the server doesn't return an inode number, * we fake one here. (We don't use inode number 0, * since glibc seems to choke on it...) */ entry->ino = 1; entry->fattr->valid = 0; if (decode_attr_bitmap(xdr, bitmap) < 0) return -EAGAIN; if (decode_attr_length(xdr, &len, &savep) < 0) return -EAGAIN; if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, NULL, entry->server) < 0) return -EAGAIN; if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) entry->ino = entry->fattr->mounted_on_fileid; else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) entry->ino = entry->fattr->fileid; entry->d_type = DT_UNKNOWN; if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE) entry->d_type = nfs_umode_to_dtype(entry->fattr->mode); entry->cookie = new_cookie; return 0; } /* * We need to translate between nfs status return values and * the local errno values which may not be the same. */ static struct { int stat; int errno; } nfs_errtbl[] = { { NFS4_OK, 0 }, { NFS4ERR_PERM, -EPERM }, { NFS4ERR_NOENT, -ENOENT }, { NFS4ERR_IO, -errno_NFSERR_IO}, { NFS4ERR_NXIO, -ENXIO }, { NFS4ERR_ACCESS, -EACCES }, { NFS4ERR_EXIST, -EEXIST }, { NFS4ERR_XDEV, -EXDEV }, { NFS4ERR_NOTDIR, -ENOTDIR }, { NFS4ERR_ISDIR, -EISDIR }, { NFS4ERR_INVAL, -EINVAL }, { NFS4ERR_FBIG, -EFBIG }, { NFS4ERR_NOSPC, -ENOSPC }, { NFS4ERR_ROFS, -EROFS }, { NFS4ERR_MLINK, -EMLINK }, { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, { NFS4ERR_DQUOT, -EDQUOT }, { NFS4ERR_STALE, -ESTALE }, { NFS4ERR_BADHANDLE, -EBADHANDLE }, { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, { NFS4ERR_NOTSUPP, -ENOTSUPP }, { NFS4ERR_TOOSMALL, -ETOOSMALL }, { NFS4ERR_SERVERFAULT, -EREMOTEIO }, { NFS4ERR_BADTYPE, -EBADTYPE }, { NFS4ERR_LOCKED, -EAGAIN }, { NFS4ERR_SYMLINK, -ELOOP }, { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, { NFS4ERR_DEADLOCK, -EDEADLK }, { NFS4ERR_NOXATTR, -ENODATA }, { NFS4ERR_XATTR2BIG, -E2BIG }, { -1, -EIO } }; /* * Convert an NFS error code to a local one. * This one is used jointly by NFSv2 and NFSv3. */ static int nfs4_stat_to_errno(int stat) { int i; for (i = 0; nfs_errtbl[i].stat != -1; i++) { if (nfs_errtbl[i].stat == stat) return nfs_errtbl[i].errno; } if (stat <= 10000 || stat > 10100) { /* The server is looney tunes. */ return -EREMOTEIO; } /* If we cannot translate the error, the recovery routines should * handle it. * Note: remaining NFSv4 error codes have values > 10000, so should * not conflict with native Linux error codes. */ return -stat; } #ifdef CONFIG_NFS_V4_2 #include "nfs42xdr.c" #endif /* CONFIG_NFS_V4_2 */ #define PROC(proc, argtype, restype) \ [NFSPROC4_CLNT_##proc] = { \ .p_proc = NFSPROC4_COMPOUND, \ .p_encode = nfs4_xdr_##argtype, \ .p_decode = nfs4_xdr_##restype, \ .p_arglen = NFS4_##argtype##_sz, \ .p_replen = NFS4_##restype##_sz, \ .p_statidx = NFSPROC4_CLNT_##proc, \ .p_name = #proc, \ } #define STUB(proc) \ [NFSPROC4_CLNT_##proc] = { \ .p_name = #proc, \ } #if defined(CONFIG_NFS_V4_1) #define PROC41(proc, argtype, restype) \ PROC(proc, argtype, restype) #else #define PROC41(proc, argtype, restype) \ STUB(proc) #endif #if defined(CONFIG_NFS_V4_2) #define PROC42(proc, argtype, restype) \ PROC(proc, argtype, restype) #else #define PROC42(proc, argtype, restype) \ STUB(proc) #endif const struct rpc_procinfo nfs4_procedures[] = { PROC(READ, enc_read, dec_read), PROC(WRITE, enc_write, dec_write), PROC(COMMIT, enc_commit, dec_commit), PROC(OPEN, enc_open, dec_open), PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), PROC(CLOSE, enc_close, dec_close), PROC(SETATTR, enc_setattr, dec_setattr), PROC(FSINFO, enc_fsinfo, dec_fsinfo), PROC(RENEW, enc_renew, dec_renew), PROC(SETCLIENTID, enc_setclientid, dec_setclientid), PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), PROC(LOCK, enc_lock, dec_lock), PROC(LOCKT, enc_lockt, dec_lockt), PROC(LOCKU, enc_locku, dec_locku), PROC(ACCESS, enc_access, dec_access), PROC(GETATTR, enc_getattr, dec_getattr), PROC(LOOKUP, enc_lookup, dec_lookup), PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), PROC(REMOVE, enc_remove, dec_remove), PROC(RENAME, enc_rename, dec_rename), PROC(LINK, enc_link, dec_link), PROC(SYMLINK, enc_symlink, dec_symlink), PROC(CREATE, enc_create, dec_create), PROC(PATHCONF, enc_pathconf, dec_pathconf), PROC(STATFS, enc_statfs, dec_statfs), PROC(READLINK, enc_readlink, dec_readlink), PROC(READDIR, enc_readdir, dec_readdir), PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), PROC(GETACL, enc_getacl, dec_getacl), PROC(SETACL, enc_setacl, dec_setacl), PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), PROC(SECINFO, enc_secinfo, dec_secinfo), PROC(FSID_PRESENT, enc_fsid_present, dec_fsid_present), PROC41(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), PROC41(CREATE_SESSION, enc_create_session, dec_create_session), PROC41(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), PROC41(SEQUENCE, enc_sequence, dec_sequence), PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), PROC41(RECLAIM_COMPLETE,enc_reclaim_complete, dec_reclaim_complete), PROC41(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), PROC41(LAYOUTGET, enc_layoutget, dec_layoutget), PROC41(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit), PROC41(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn), PROC41(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name), PROC41(TEST_STATEID, enc_test_stateid, dec_test_stateid), PROC41(FREE_STATEID, enc_free_stateid, dec_free_stateid), STUB(GETDEVICELIST), PROC41(BIND_CONN_TO_SESSION, enc_bind_conn_to_session, dec_bind_conn_to_session), PROC41(DESTROY_CLIENTID,enc_destroy_clientid, dec_destroy_clientid), PROC42(SEEK, enc_seek, dec_seek), PROC42(ALLOCATE, enc_allocate, dec_allocate), PROC42(DEALLOCATE, enc_deallocate, dec_deallocate), PROC42(LAYOUTSTATS, enc_layoutstats, dec_layoutstats), PROC42(CLONE, enc_clone, dec_clone), PROC42(COPY, enc_copy, dec_copy), PROC42(OFFLOAD_CANCEL, enc_offload_cancel, dec_offload_cancel), PROC42(COPY_NOTIFY, enc_copy_notify, dec_copy_notify), PROC(LOOKUPP, enc_lookupp, dec_lookupp), PROC42(LAYOUTERROR, enc_layouterror, dec_layouterror), PROC42(GETXATTR, enc_getxattr, dec_getxattr), PROC42(SETXATTR, enc_setxattr, dec_setxattr), PROC42(LISTXATTRS, enc_listxattrs, dec_listxattrs), PROC42(REMOVEXATTR, enc_removexattr, dec_removexattr), PROC42(READ_PLUS, enc_read_plus, dec_read_plus), }; static unsigned int nfs_version4_counts[ARRAY_SIZE(nfs4_procedures)]; const struct rpc_version nfs_version4 = { .number = 4, .nrprocs = ARRAY_SIZE(nfs4_procedures), .procs = nfs4_procedures, .counts = nfs_version4_counts, };
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