| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Anna Schumaker | 4162 | 56.01% | 25 | 34.72% |
| van der Linden, Frank | 1118 | 15.05% | 3 | 4.17% |
| Trond Myklebust | 849 | 11.43% | 18 | 25.00% |
| Olga Kornievskaia | 516 | 6.94% | 6 | 8.33% |
| Peng Tao | 215 | 2.89% | 1 | 1.39% |
| Andy Adamson | 206 | 2.77% | 4 | 5.56% |
| Christoph Hellwig | 182 | 2.45% | 3 | 4.17% |
| Ricardo Labiaga | 107 | 1.44% | 1 | 1.39% |
| Benny Halevy | 37 | 0.50% | 4 | 5.56% |
| Chuck Lever | 34 | 0.46% | 4 | 5.56% |
| Fred Isaman | 2 | 0.03% | 1 | 1.39% |
| Al Viro | 2 | 0.03% | 1 | 1.39% |
| Greg Kroah-Hartman | 1 | 0.01% | 1 | 1.39% |
| Total | 7431 | 72 |
// SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2014 Anna Schumaker <Anna.Schumaker@Netapp.com> */ #ifndef __LINUX_FS_NFS_NFS4_2XDR_H #define __LINUX_FS_NFS_NFS4_2XDR_H #include "nfs42.h" /* Not limited by NFS itself, limited by the generic xattr code */ #define nfs4_xattr_name_maxsz XDR_QUADLEN(XATTR_NAME_MAX) #define encode_fallocate_maxsz (encode_stateid_maxsz + \ 2 /* offset */ + \ 2 /* length */) #define NFS42_WRITE_RES_SIZE (1 /* wr_callback_id size */ +\ XDR_QUADLEN(NFS4_STATEID_SIZE) + \ 2 /* wr_count */ + \ 1 /* wr_committed */ + \ XDR_QUADLEN(NFS4_VERIFIER_SIZE)) #define encode_allocate_maxsz (op_encode_hdr_maxsz + \ encode_fallocate_maxsz) #define decode_allocate_maxsz (op_decode_hdr_maxsz) #define encode_copy_maxsz (op_encode_hdr_maxsz + \ XDR_QUADLEN(NFS4_STATEID_SIZE) + \ XDR_QUADLEN(NFS4_STATEID_SIZE) + \ 2 + 2 + 2 + 1 + 1 + 1 +\ 1 + /* One cnr_source_server */\ 1 + /* nl4_type */ \ 1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT)) #define decode_copy_maxsz (op_decode_hdr_maxsz + \ NFS42_WRITE_RES_SIZE + \ 1 /* cr_consecutive */ + \ 1 /* cr_synchronous */) #define encode_offload_cancel_maxsz (op_encode_hdr_maxsz + \ XDR_QUADLEN(NFS4_STATEID_SIZE)) #define decode_offload_cancel_maxsz (op_decode_hdr_maxsz) #define encode_copy_notify_maxsz (op_encode_hdr_maxsz + \ XDR_QUADLEN(NFS4_STATEID_SIZE) + \ 1 + /* nl4_type */ \ 1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT)) #define decode_copy_notify_maxsz (op_decode_hdr_maxsz + \ 3 + /* cnr_lease_time */\ XDR_QUADLEN(NFS4_STATEID_SIZE) + \ 1 + /* Support 1 cnr_source_server */\ 1 + /* nl4_type */ \ 1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT)) #define encode_deallocate_maxsz (op_encode_hdr_maxsz + \ encode_fallocate_maxsz) #define decode_deallocate_maxsz (op_decode_hdr_maxsz) #define encode_read_plus_maxsz (op_encode_hdr_maxsz + \ encode_stateid_maxsz + 3) #define NFS42_READ_PLUS_DATA_SEGMENT_SIZE \ (1 /* data_content4 */ + \ 2 /* data_info4.di_offset */ + \ 1 /* data_info4.di_length */) #define NFS42_READ_PLUS_HOLE_SEGMENT_SIZE \ (1 /* data_content4 */ + \ 2 /* data_info4.di_offset */ + \ 2 /* data_info4.di_length */) #define READ_PLUS_SEGMENT_SIZE_DIFF (NFS42_READ_PLUS_HOLE_SEGMENT_SIZE - \ NFS42_READ_PLUS_DATA_SEGMENT_SIZE) #define decode_read_plus_maxsz (op_decode_hdr_maxsz + \ 1 /* rpr_eof */ + \ 1 /* rpr_contents count */ + \ NFS42_READ_PLUS_HOLE_SEGMENT_SIZE) #define encode_seek_maxsz (op_encode_hdr_maxsz + \ encode_stateid_maxsz + \ 2 /* offset */ + \ 1 /* whence */) #define decode_seek_maxsz (op_decode_hdr_maxsz + \ 1 /* eof */ + \ 1 /* whence */ + \ 2 /* offset */ + \ 2 /* length */) #define encode_io_info_maxsz 4 #define encode_layoutstats_maxsz (op_decode_hdr_maxsz + \ 2 /* offset */ + \ 2 /* length */ + \ encode_stateid_maxsz + \ encode_io_info_maxsz + \ encode_io_info_maxsz + \ 1 /* opaque devaddr4 length */ + \ XDR_QUADLEN(PNFS_LAYOUTSTATS_MAXSIZE)) #define decode_layoutstats_maxsz (op_decode_hdr_maxsz) #define encode_device_error_maxsz (XDR_QUADLEN(NFS4_DEVICEID4_SIZE) + \ 1 /* status */ + 1 /* opnum */) #define encode_layouterror_maxsz (op_decode_hdr_maxsz + \ 2 /* offset */ + \ 2 /* length */ + \ encode_stateid_maxsz + \ 1 /* Array size */ + \ encode_device_error_maxsz) #define decode_layouterror_maxsz (op_decode_hdr_maxsz) #define encode_clone_maxsz (encode_stateid_maxsz + \ encode_stateid_maxsz + \ 2 /* src offset */ + \ 2 /* dst offset */ + \ 2 /* count */) #define decode_clone_maxsz (op_decode_hdr_maxsz) #define encode_getxattr_maxsz (op_encode_hdr_maxsz + 1 + \ nfs4_xattr_name_maxsz) #define decode_getxattr_maxsz (op_decode_hdr_maxsz + 1 + pagepad_maxsz) #define encode_setxattr_maxsz (op_encode_hdr_maxsz + \ 1 + nfs4_xattr_name_maxsz + 1) #define decode_setxattr_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) #define encode_listxattrs_maxsz (op_encode_hdr_maxsz + 2 + 1) #define decode_listxattrs_maxsz (op_decode_hdr_maxsz + 2 + 1 + 1 + 1) #define encode_removexattr_maxsz (op_encode_hdr_maxsz + 1 + \ nfs4_xattr_name_maxsz) #define decode_removexattr_maxsz (op_decode_hdr_maxsz + \ decode_change_info_maxsz) #define NFS4_enc_allocate_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_allocate_maxsz + \ encode_getattr_maxsz) #define NFS4_dec_allocate_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_allocate_maxsz + \ decode_getattr_maxsz) #define NFS4_enc_copy_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_savefh_maxsz + \ encode_putfh_maxsz + \ encode_copy_maxsz + \ encode_commit_maxsz) #define NFS4_dec_copy_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_savefh_maxsz + \ decode_putfh_maxsz + \ decode_copy_maxsz + \ decode_commit_maxsz) #define NFS4_enc_offload_cancel_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_offload_cancel_maxsz) #define NFS4_dec_offload_cancel_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_offload_cancel_maxsz) #define NFS4_enc_copy_notify_sz (compound_encode_hdr_maxsz + \ encode_putfh_maxsz + \ encode_copy_notify_maxsz) #define NFS4_dec_copy_notify_sz (compound_decode_hdr_maxsz + \ decode_putfh_maxsz + \ decode_copy_notify_maxsz) #define NFS4_enc_deallocate_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_deallocate_maxsz + \ encode_getattr_maxsz) #define NFS4_dec_deallocate_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_deallocate_maxsz + \ decode_getattr_maxsz) #define NFS4_enc_read_plus_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_read_plus_maxsz) #define NFS4_dec_read_plus_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_read_plus_maxsz) #define NFS4_enc_seek_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_seek_maxsz) #define NFS4_dec_seek_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_seek_maxsz) #define NFS4_enc_layoutstats_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ PNFS_LAYOUTSTATS_MAXDEV * encode_layoutstats_maxsz) #define NFS4_dec_layoutstats_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ PNFS_LAYOUTSTATS_MAXDEV * decode_layoutstats_maxsz) #define NFS4_enc_layouterror_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ NFS42_LAYOUTERROR_MAX * \ encode_layouterror_maxsz) #define NFS4_dec_layouterror_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ NFS42_LAYOUTERROR_MAX * \ decode_layouterror_maxsz) #define NFS4_enc_clone_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_savefh_maxsz + \ encode_putfh_maxsz + \ encode_clone_maxsz + \ encode_getattr_maxsz) #define NFS4_dec_clone_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_savefh_maxsz + \ decode_putfh_maxsz + \ decode_clone_maxsz + \ decode_getattr_maxsz) #define NFS4_enc_getxattr_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_getxattr_maxsz) #define NFS4_dec_getxattr_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_getxattr_maxsz) #define NFS4_enc_setxattr_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_setxattr_maxsz + \ encode_getattr_maxsz) #define NFS4_dec_setxattr_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_setxattr_maxsz + \ decode_getattr_maxsz) #define NFS4_enc_listxattrs_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_listxattrs_maxsz) #define NFS4_dec_listxattrs_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_listxattrs_maxsz) #define NFS4_enc_removexattr_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_removexattr_maxsz) #define NFS4_dec_removexattr_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_removexattr_maxsz) /* * These values specify the maximum amount of data that is not * associated with the extended attribute name or extended * attribute list in the SETXATTR, GETXATTR and LISTXATTR * respectively. */ const u32 nfs42_maxsetxattr_overhead = ((RPC_MAX_HEADER_WITH_AUTH + compound_encode_hdr_maxsz + encode_sequence_maxsz + encode_putfh_maxsz + 1 + nfs4_xattr_name_maxsz) * XDR_UNIT); const u32 nfs42_maxgetxattr_overhead = ((RPC_MAX_HEADER_WITH_AUTH + compound_decode_hdr_maxsz + decode_sequence_maxsz + decode_putfh_maxsz + 1) * XDR_UNIT); const u32 nfs42_maxlistxattrs_overhead = ((RPC_MAX_HEADER_WITH_AUTH + compound_decode_hdr_maxsz + decode_sequence_maxsz + decode_putfh_maxsz + 3) * XDR_UNIT); static void encode_fallocate(struct xdr_stream *xdr, const struct nfs42_falloc_args *args) { encode_nfs4_stateid(xdr, &args->falloc_stateid); encode_uint64(xdr, args->falloc_offset); encode_uint64(xdr, args->falloc_length); } static void encode_allocate(struct xdr_stream *xdr, const struct nfs42_falloc_args *args, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_ALLOCATE, decode_allocate_maxsz, hdr); encode_fallocate(xdr, args); } static void encode_nl4_server(struct xdr_stream *xdr, const struct nl4_server *ns) { encode_uint32(xdr, ns->nl4_type); switch (ns->nl4_type) { case NL4_NAME: case NL4_URL: encode_string(xdr, ns->u.nl4_str_sz, ns->u.nl4_str); break; case NL4_NETADDR: encode_string(xdr, ns->u.nl4_addr.netid_len, ns->u.nl4_addr.netid); encode_string(xdr, ns->u.nl4_addr.addr_len, ns->u.nl4_addr.addr); break; default: WARN_ON_ONCE(1); } } static void encode_copy(struct xdr_stream *xdr, const struct nfs42_copy_args *args, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_COPY, decode_copy_maxsz, hdr); encode_nfs4_stateid(xdr, &args->src_stateid); encode_nfs4_stateid(xdr, &args->dst_stateid); encode_uint64(xdr, args->src_pos); encode_uint64(xdr, args->dst_pos); encode_uint64(xdr, args->count); encode_uint32(xdr, 1); /* consecutive = true */ encode_uint32(xdr, args->sync); if (args->cp_src == NULL) { /* intra-ssc */ encode_uint32(xdr, 0); /* no src server list */ return; } encode_uint32(xdr, 1); /* supporting 1 server */ encode_nl4_server(xdr, args->cp_src); } static void encode_copy_commit(struct xdr_stream *xdr, const struct nfs42_copy_args *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->dst_pos); *p = cpu_to_be32(args->count); } static void encode_offload_cancel(struct xdr_stream *xdr, const struct nfs42_offload_status_args *args, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_OFFLOAD_CANCEL, decode_offload_cancel_maxsz, hdr); encode_nfs4_stateid(xdr, &args->osa_stateid); } static void encode_copy_notify(struct xdr_stream *xdr, const struct nfs42_copy_notify_args *args, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_COPY_NOTIFY, decode_copy_notify_maxsz, hdr); encode_nfs4_stateid(xdr, &args->cna_src_stateid); encode_nl4_server(xdr, &args->cna_dst); } static void encode_deallocate(struct xdr_stream *xdr, const struct nfs42_falloc_args *args, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_DEALLOCATE, decode_deallocate_maxsz, hdr); encode_fallocate(xdr, args); } static void encode_read_plus(struct xdr_stream *xdr, const struct nfs_pgio_args *args, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_READ_PLUS, decode_read_plus_maxsz, hdr); encode_nfs4_stateid(xdr, &args->stateid); encode_uint64(xdr, args->offset); encode_uint32(xdr, args->count); } static void encode_seek(struct xdr_stream *xdr, const struct nfs42_seek_args *args, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_SEEK, decode_seek_maxsz, hdr); encode_nfs4_stateid(xdr, &args->sa_stateid); encode_uint64(xdr, args->sa_offset); encode_uint32(xdr, args->sa_what); } static void encode_layoutstats(struct xdr_stream *xdr, const struct nfs42_layoutstat_args *args, struct nfs42_layoutstat_devinfo *devinfo, struct compound_hdr *hdr) { __be32 *p; encode_op_hdr(xdr, OP_LAYOUTSTATS, decode_layoutstats_maxsz, hdr); p = reserve_space(xdr, 8 + 8); p = xdr_encode_hyper(p, devinfo->offset); p = xdr_encode_hyper(p, devinfo->length); encode_nfs4_stateid(xdr, &args->stateid); p = reserve_space(xdr, 4*8 + NFS4_DEVICEID4_SIZE + 4); p = xdr_encode_hyper(p, devinfo->read_count); p = xdr_encode_hyper(p, devinfo->read_bytes); p = xdr_encode_hyper(p, devinfo->write_count); p = xdr_encode_hyper(p, devinfo->write_bytes); p = xdr_encode_opaque_fixed(p, devinfo->dev_id.data, NFS4_DEVICEID4_SIZE); /* Encode layoutupdate4 */ *p++ = cpu_to_be32(devinfo->layout_type); if (devinfo->ld_private.ops) devinfo->ld_private.ops->encode(xdr, args, &devinfo->ld_private); else encode_uint32(xdr, 0); } static void encode_clone(struct xdr_stream *xdr, const struct nfs42_clone_args *args, struct compound_hdr *hdr) { __be32 *p; encode_op_hdr(xdr, OP_CLONE, decode_clone_maxsz, hdr); encode_nfs4_stateid(xdr, &args->src_stateid); encode_nfs4_stateid(xdr, &args->dst_stateid); p = reserve_space(xdr, 3*8); p = xdr_encode_hyper(p, args->src_offset); p = xdr_encode_hyper(p, args->dst_offset); xdr_encode_hyper(p, args->count); } static void encode_device_error(struct xdr_stream *xdr, const struct nfs42_device_error *error) { __be32 *p; p = reserve_space(xdr, NFS4_DEVICEID4_SIZE + 2*4); p = xdr_encode_opaque_fixed(p, error->dev_id.data, NFS4_DEVICEID4_SIZE); *p++ = cpu_to_be32(error->status); *p = cpu_to_be32(error->opnum); } static void encode_layouterror(struct xdr_stream *xdr, const struct nfs42_layout_error *args, struct compound_hdr *hdr) { __be32 *p; encode_op_hdr(xdr, OP_LAYOUTERROR, decode_layouterror_maxsz, hdr); p = reserve_space(xdr, 8 + 8); p = xdr_encode_hyper(p, args->offset); p = xdr_encode_hyper(p, args->length); encode_nfs4_stateid(xdr, &args->stateid); p = reserve_space(xdr, 4); *p = cpu_to_be32(1); encode_device_error(xdr, &args->errors[0]); } static void encode_setxattr(struct xdr_stream *xdr, const struct nfs42_setxattrargs *arg, struct compound_hdr *hdr) { __be32 *p; BUILD_BUG_ON(XATTR_CREATE != SETXATTR4_CREATE); BUILD_BUG_ON(XATTR_REPLACE != SETXATTR4_REPLACE); encode_op_hdr(xdr, OP_SETXATTR, decode_setxattr_maxsz, hdr); p = reserve_space(xdr, 4); *p = cpu_to_be32(arg->xattr_flags); encode_string(xdr, strlen(arg->xattr_name), arg->xattr_name); p = reserve_space(xdr, 4); *p = cpu_to_be32(arg->xattr_len); if (arg->xattr_len) xdr_write_pages(xdr, arg->xattr_pages, 0, arg->xattr_len); } static void encode_getxattr(struct xdr_stream *xdr, const char *name, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_GETXATTR, decode_getxattr_maxsz, hdr); encode_string(xdr, strlen(name), name); } static void encode_removexattr(struct xdr_stream *xdr, const char *name, struct compound_hdr *hdr) { encode_op_hdr(xdr, OP_REMOVEXATTR, decode_removexattr_maxsz, hdr); encode_string(xdr, strlen(name), name); } static void encode_listxattrs(struct xdr_stream *xdr, const struct nfs42_listxattrsargs *arg, struct compound_hdr *hdr) { __be32 *p; encode_op_hdr(xdr, OP_LISTXATTRS, decode_listxattrs_maxsz, hdr); p = reserve_space(xdr, 12); if (unlikely(!p)) return; p = xdr_encode_hyper(p, arg->cookie); /* * RFC 8276 says to specify the full max length of the LISTXATTRS * XDR reply. Count is set to the XDR length of the names array * plus the EOF marker. So, add the cookie and the names count. */ *p = cpu_to_be32(arg->count + 8 + 4); } /* * Encode ALLOCATE request */ static void nfs4_xdr_enc_allocate(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs42_falloc_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->falloc_fh, &hdr); encode_allocate(xdr, args, &hdr); encode_getfattr(xdr, args->falloc_bitmask, &hdr); encode_nops(&hdr); } /* * Encode COPY request */ static void nfs4_xdr_enc_copy(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs42_copy_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->src_fh, &hdr); encode_savefh(xdr, &hdr); encode_putfh(xdr, args->dst_fh, &hdr); encode_copy(xdr, args, &hdr); if (args->sync) encode_copy_commit(xdr, args, &hdr); encode_nops(&hdr); } /* * Encode OFFLOAD_CANEL request */ static void nfs4_xdr_enc_offload_cancel(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs42_offload_status_args *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->osa_seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->osa_seq_args, &hdr); encode_putfh(xdr, args->osa_src_fh, &hdr); encode_offload_cancel(xdr, args, &hdr); encode_nops(&hdr); } /* * Encode COPY_NOTIFY request */ static void nfs4_xdr_enc_copy_notify(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs42_copy_notify_args *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->cna_seq_args), }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->cna_seq_args, &hdr); encode_putfh(xdr, args->cna_src_fh, &hdr); encode_copy_notify(xdr, args, &hdr); encode_nops(&hdr); } /* * Encode DEALLOCATE request */ static void nfs4_xdr_enc_deallocate(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs42_falloc_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->falloc_fh, &hdr); encode_deallocate(xdr, args, &hdr); encode_getfattr(xdr, args->falloc_bitmask, &hdr); encode_nops(&hdr); } /* * Encode READ_PLUS request */ static void nfs4_xdr_enc_read_plus(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_plus(xdr, args, &hdr); rpc_prepare_reply_pages(req, args->pages, args->pgbase, args->count, hdr.replen - READ_PLUS_SEGMENT_SIZE_DIFF); encode_nops(&hdr); } /* * Encode SEEK request */ static void nfs4_xdr_enc_seek(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs42_seek_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->sa_fh, &hdr); encode_seek(xdr, args, &hdr); encode_nops(&hdr); } /* * Encode LAYOUTSTATS request */ static void nfs4_xdr_enc_layoutstats(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs42_layoutstat_args *args = data; int i; 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); WARN_ON(args->num_dev > PNFS_LAYOUTSTATS_MAXDEV); for (i = 0; i < args->num_dev; i++) encode_layoutstats(xdr, args, &args->devinfo[i], &hdr); encode_nops(&hdr); } /* * Encode CLONE request */ static void nfs4_xdr_enc_clone(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs42_clone_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->src_fh, &hdr); encode_savefh(xdr, &hdr); encode_putfh(xdr, args->dst_fh, &hdr); encode_clone(xdr, args, &hdr); encode_getfattr(xdr, args->dst_bitmask, &hdr); encode_nops(&hdr); } /* * Encode LAYOUTERROR request */ static void nfs4_xdr_enc_layouterror(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs42_layouterror_args *args = data; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; int i; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, NFS_FH(args->inode), &hdr); for (i = 0; i < args->num_errors; i++) encode_layouterror(xdr, &args->errors[i], &hdr); encode_nops(&hdr); } /* * Encode SETXATTR request */ static void nfs4_xdr_enc_setxattr(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs42_setxattrargs *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_setxattr(xdr, args, &hdr); encode_getfattr(xdr, args->bitmask, &hdr); encode_nops(&hdr); } /* * Encode GETXATTR request */ static void nfs4_xdr_enc_getxattr(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs42_getxattrargs *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); encode_putfh(xdr, args->fh, &hdr); replen = hdr.replen + op_decode_hdr_maxsz + 1; encode_getxattr(xdr, args->xattr_name, &hdr); rpc_prepare_reply_pages(req, args->xattr_pages, 0, args->xattr_len, replen); encode_nops(&hdr); } /* * Encode LISTXATTR request */ static void nfs4_xdr_enc_listxattrs(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs42_listxattrsargs *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); encode_putfh(xdr, args->fh, &hdr); replen = hdr.replen + op_decode_hdr_maxsz + 2 + 1; encode_listxattrs(xdr, args, &hdr); rpc_prepare_reply_pages(req, args->xattr_pages, 0, args->count, replen); encode_nops(&hdr); } /* * Encode REMOVEXATTR request */ static void nfs4_xdr_enc_removexattr(struct rpc_rqst *req, struct xdr_stream *xdr, const void *data) { const struct nfs42_removexattrargs *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_removexattr(xdr, args->xattr_name, &hdr); encode_nops(&hdr); } static int decode_allocate(struct xdr_stream *xdr, struct nfs42_falloc_res *res) { return decode_op_hdr(xdr, OP_ALLOCATE); } static int decode_write_response(struct xdr_stream *xdr, struct nfs42_write_res *res) { __be32 *p; int status, count; p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; count = be32_to_cpup(p); if (count > 1) return -EREMOTEIO; else if (count == 1) { status = decode_opaque_fixed(xdr, &res->stateid, NFS4_STATEID_SIZE); if (unlikely(status)) return -EIO; } p = xdr_inline_decode(xdr, 8 + 4); if (unlikely(!p)) return -EIO; p = xdr_decode_hyper(p, &res->count); res->verifier.committed = be32_to_cpup(p); return decode_verifier(xdr, &res->verifier.verifier); } static int decode_nl4_server(struct xdr_stream *xdr, struct nl4_server *ns) { struct nfs42_netaddr *naddr; uint32_t dummy; char *dummy_str; __be32 *p; int status; /* nl_type */ p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; ns->nl4_type = be32_to_cpup(p); switch (ns->nl4_type) { case NL4_NAME: case NL4_URL: status = decode_opaque_inline(xdr, &dummy, &dummy_str); if (unlikely(status)) return status; if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) return -EIO; memcpy(&ns->u.nl4_str, dummy_str, dummy); ns->u.nl4_str_sz = dummy; break; case NL4_NETADDR: naddr = &ns->u.nl4_addr; /* netid string */ status = decode_opaque_inline(xdr, &dummy, &dummy_str); if (unlikely(status)) return status; if (unlikely(dummy > RPCBIND_MAXNETIDLEN)) return -EIO; naddr->netid_len = dummy; memcpy(naddr->netid, dummy_str, naddr->netid_len); /* uaddr string */ status = decode_opaque_inline(xdr, &dummy, &dummy_str); if (unlikely(status)) return status; if (unlikely(dummy > RPCBIND_MAXUADDRLEN)) return -EIO; naddr->addr_len = dummy; memcpy(naddr->addr, dummy_str, naddr->addr_len); break; default: WARN_ON_ONCE(1); return -EIO; } return 0; } static int decode_copy_requirements(struct xdr_stream *xdr, struct nfs42_copy_res *res) { __be32 *p; p = xdr_inline_decode(xdr, 4 + 4); if (unlikely(!p)) return -EIO; res->consecutive = be32_to_cpup(p++); res->synchronous = be32_to_cpup(p++); return 0; } static int decode_copy(struct xdr_stream *xdr, struct nfs42_copy_res *res) { int status; status = decode_op_hdr(xdr, OP_COPY); if (status == NFS4ERR_OFFLOAD_NO_REQS) { status = decode_copy_requirements(xdr, res); if (status) return status; return NFS4ERR_OFFLOAD_NO_REQS; } else if (status) return status; status = decode_write_response(xdr, &res->write_res); if (status) return status; return decode_copy_requirements(xdr, res); } static int decode_offload_cancel(struct xdr_stream *xdr, struct nfs42_offload_status_res *res) { return decode_op_hdr(xdr, OP_OFFLOAD_CANCEL); } static int decode_copy_notify(struct xdr_stream *xdr, struct nfs42_copy_notify_res *res) { __be32 *p; int status, count; status = decode_op_hdr(xdr, OP_COPY_NOTIFY); if (status) return status; /* cnr_lease_time */ p = xdr_inline_decode(xdr, 12); if (unlikely(!p)) return -EIO; p = xdr_decode_hyper(p, &res->cnr_lease_time.seconds); res->cnr_lease_time.nseconds = be32_to_cpup(p); status = decode_opaque_fixed(xdr, &res->cnr_stateid, NFS4_STATEID_SIZE); if (unlikely(status)) return -EIO; /* number of source addresses */ p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; count = be32_to_cpup(p); if (count > 1) pr_warn("NFS: %s: nsvr %d > Supported. Use first servers\n", __func__, count); status = decode_nl4_server(xdr, &res->cnr_src); if (unlikely(status)) return -EIO; return 0; } static int decode_deallocate(struct xdr_stream *xdr, struct nfs42_falloc_res *res) { return decode_op_hdr(xdr, OP_DEALLOCATE); } struct read_plus_segment { enum data_content4 type; uint64_t offset; union { struct { uint64_t length; } hole; struct { uint32_t length; unsigned int from; } data; }; }; static inline uint64_t read_plus_segment_length(struct read_plus_segment *seg) { return seg->type == NFS4_CONTENT_DATA ? seg->data.length : seg->hole.length; } static int decode_read_plus_segment(struct xdr_stream *xdr, struct read_plus_segment *seg) { __be32 *p; p = xdr_inline_decode(xdr, 4); if (!p) return -EIO; seg->type = be32_to_cpup(p++); p = xdr_inline_decode(xdr, seg->type == NFS4_CONTENT_DATA ? 12 : 16); if (!p) return -EIO; p = xdr_decode_hyper(p, &seg->offset); if (seg->type == NFS4_CONTENT_DATA) { struct xdr_buf buf; uint32_t len = be32_to_cpup(p); seg->data.length = len; seg->data.from = xdr_stream_pos(xdr); if (!xdr_stream_subsegment(xdr, &buf, xdr_align_size(len))) return -EIO; } else if (seg->type == NFS4_CONTENT_HOLE) { xdr_decode_hyper(p, &seg->hole.length); } else return -EINVAL; return 0; } static int process_read_plus_segment(struct xdr_stream *xdr, struct nfs_pgio_args *args, struct nfs_pgio_res *res, struct read_plus_segment *seg) { unsigned long offset = seg->offset; unsigned long length = read_plus_segment_length(seg); unsigned int bufpos; if (offset + length < args->offset) return 0; else if (offset > args->offset + args->count) { res->eof = 0; return 0; } else if (offset < args->offset) { length -= (args->offset - offset); offset = args->offset; } else if (offset + length > args->offset + args->count) { length = (args->offset + args->count) - offset; res->eof = 0; } bufpos = xdr->buf->head[0].iov_len + (offset - args->offset); if (seg->type == NFS4_CONTENT_HOLE) return xdr_stream_zero(xdr, bufpos, length); else return xdr_stream_move_subsegment(xdr, seg->data.from, bufpos, length); } static int decode_read_plus(struct xdr_stream *xdr, struct nfs_pgio_res *res) { struct nfs_pgio_header *hdr = container_of(res, struct nfs_pgio_header, res); struct nfs_pgio_args *args = &hdr->args; uint32_t segments; struct read_plus_segment *segs; int status, i; __be32 *p; status = decode_op_hdr(xdr, OP_READ_PLUS); if (status) return status; p = xdr_inline_decode(xdr, 4 + 4); if (unlikely(!p)) return -EIO; res->count = 0; res->eof = be32_to_cpup(p++); segments = be32_to_cpup(p++); if (segments == 0) return 0; segs = kmalloc_array(segments, sizeof(*segs), GFP_KERNEL); if (!segs) return -ENOMEM; for (i = 0; i < segments; i++) { status = decode_read_plus_segment(xdr, &segs[i]); if (status < 0) goto out; } xdr_set_pagelen(xdr, xdr_align_size(args->count)); for (i = segments; i > 0; i--) res->count += process_read_plus_segment(xdr, args, res, &segs[i-1]); status = 0; out: kfree(segs); return status; } static int decode_seek(struct xdr_stream *xdr, struct nfs42_seek_res *res) { int status; __be32 *p; status = decode_op_hdr(xdr, OP_SEEK); if (status) return status; p = xdr_inline_decode(xdr, 4 + 8); if (unlikely(!p)) return -EIO; res->sr_eof = be32_to_cpup(p++); p = xdr_decode_hyper(p, &res->sr_offset); return 0; } static int decode_layoutstats(struct xdr_stream *xdr) { return decode_op_hdr(xdr, OP_LAYOUTSTATS); } static int decode_clone(struct xdr_stream *xdr) { return decode_op_hdr(xdr, OP_CLONE); } static int decode_layouterror(struct xdr_stream *xdr) { return decode_op_hdr(xdr, OP_LAYOUTERROR); } static int decode_setxattr(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) { int status; status = decode_op_hdr(xdr, OP_SETXATTR); if (status) goto out; status = decode_change_info(xdr, cinfo); out: return status; } static int decode_getxattr(struct xdr_stream *xdr, struct nfs42_getxattrres *res, struct rpc_rqst *req) { int status; __be32 *p; u32 len, rdlen; status = decode_op_hdr(xdr, OP_GETXATTR); if (status) return status; p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; len = be32_to_cpup(p); /* * Only check against the page length here. The actual * requested length may be smaller, but that is only * checked against after possibly caching a valid reply. */ if (len > req->rq_rcv_buf.page_len) return -ERANGE; res->xattr_len = len; if (len > 0) { rdlen = xdr_read_pages(xdr, len); if (rdlen < len) return -EIO; } return 0; } static int decode_removexattr(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) { int status; status = decode_op_hdr(xdr, OP_REMOVEXATTR); if (status) goto out; status = decode_change_info(xdr, cinfo); out: return status; } static int decode_listxattrs(struct xdr_stream *xdr, struct nfs42_listxattrsres *res) { int status; __be32 *p; u32 count, len, ulen; size_t left, copied; char *buf; status = decode_op_hdr(xdr, OP_LISTXATTRS); if (status) { /* * Special case: for LISTXATTRS, NFS4ERR_TOOSMALL * should be translated to ERANGE. */ if (status == -ETOOSMALL) status = -ERANGE; /* * Special case: for LISTXATTRS, NFS4ERR_NOXATTR * should be translated to success with zero-length reply. */ if (status == -ENODATA) { res->eof = true; status = 0; } goto out; } p = xdr_inline_decode(xdr, 8); if (unlikely(!p)) return -EIO; xdr_decode_hyper(p, &res->cookie); p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; left = res->xattr_len; buf = res->xattr_buf; count = be32_to_cpup(p); copied = 0; /* * We have asked for enough room to encode the maximum number * of possible attribute names, so everything should fit. * * But, don't rely on that assumption. Just decode entries * until they don't fit anymore, just in case the server did * something odd. */ while (count--) { p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; len = be32_to_cpup(p); if (len > (XATTR_NAME_MAX - XATTR_USER_PREFIX_LEN)) { status = -ERANGE; goto out; } p = xdr_inline_decode(xdr, len); if (unlikely(!p)) return -EIO; ulen = len + XATTR_USER_PREFIX_LEN + 1; if (buf) { if (ulen > left) { status = -ERANGE; goto out; } memcpy(buf, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN); memcpy(buf + XATTR_USER_PREFIX_LEN, p, len); buf[ulen - 1] = 0; buf += ulen; left -= ulen; } copied += ulen; } p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; res->eof = be32_to_cpup(p); res->copied = copied; out: if (status == -ERANGE && res->xattr_len == XATTR_LIST_MAX) status = -E2BIG; return status; } /* * Decode ALLOCATE request */ static int nfs4_xdr_dec_allocate(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs42_falloc_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_allocate(xdr, res); if (status) goto out; decode_getfattr(xdr, res->falloc_fattr, res->falloc_server); out: return status; } /* * Decode COPY response */ static int nfs4_xdr_dec_copy(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs42_copy_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_copy(xdr, res); if (status) goto out; if (res->commit_res.verf) status = decode_commit(xdr, &res->commit_res); out: return status; } /* * Decode OFFLOAD_CANCEL response */ static int nfs4_xdr_dec_offload_cancel(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs42_offload_status_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->osr_seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_offload_cancel(xdr, res); out: return status; } /* * Decode COPY_NOTIFY response */ static int nfs4_xdr_dec_copy_notify(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs42_copy_notify_res *res = data; struct compound_hdr hdr; int status; status = decode_compound_hdr(xdr, &hdr); if (status) goto out; status = decode_sequence(xdr, &res->cnr_seq_res, rqstp); if (status) goto out; status = decode_putfh(xdr); if (status) goto out; status = decode_copy_notify(xdr, res); out: return status; } /* * Decode DEALLOCATE request */ static int nfs4_xdr_dec_deallocate(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs42_falloc_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_deallocate(xdr, res); if (status) goto out; decode_getfattr(xdr, res->falloc_fattr, res->falloc_server); out: return status; } /* * Decode READ_PLUS request */ static int nfs4_xdr_dec_read_plus(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs_pgio_res *res = data; struct compound_hdr hdr; int status; xdr_set_scratch_buffer(xdr, res->scratch, READ_PLUS_SCRATCH_SIZE); 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_read_plus(xdr, res); if (!status) status = res->count; out: return status; } /* * Decode SEEK request */ static int nfs4_xdr_dec_seek(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs42_seek_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_seek(xdr, res); out: return status; } /* * Decode LAYOUTSTATS request */ static int nfs4_xdr_dec_layoutstats(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs42_layoutstat_res *res = data; struct compound_hdr hdr; int status, i; 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; WARN_ON(res->num_dev > PNFS_LAYOUTSTATS_MAXDEV); for (i = 0; i < res->num_dev; i++) { status = decode_layoutstats(xdr); if (status) goto out; } out: res->rpc_status = status; return status; } /* * Decode CLONE request */ static int nfs4_xdr_dec_clone(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs42_clone_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_clone(xdr); if (status) goto out; decode_getfattr(xdr, res->dst_fattr, res->server); out: res->rpc_status = status; return status; } /* * Decode LAYOUTERROR request */ static int nfs4_xdr_dec_layouterror(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs42_layouterror_res *res = data; struct compound_hdr hdr; int status, i; 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); for (i = 0; i < res->num_errors && status == 0; i++) status = decode_layouterror(xdr); out: res->rpc_status = status; return status; } /* * Decode SETXATTR request */ static int nfs4_xdr_dec_setxattr(struct rpc_rqst *req, struct xdr_stream *xdr, void *data) { struct nfs42_setxattrres *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_setxattr(xdr, &res->cinfo); if (status) goto out; status = decode_getfattr(xdr, res->fattr, res->server); out: return status; } /* * Decode GETXATTR request */ static int nfs4_xdr_dec_getxattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs42_getxattrres *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_getxattr(xdr, res, rqstp); out: return status; } /* * Decode LISTXATTR request */ static int nfs4_xdr_dec_listxattrs(struct rpc_rqst *rqstp, struct xdr_stream *xdr, void *data) { struct nfs42_listxattrsres *res = data; struct compound_hdr hdr; int status; xdr_set_scratch_page(xdr, res->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_listxattrs(xdr, res); out: return status; } /* * Decode REMOVEXATTR request */ static int nfs4_xdr_dec_removexattr(struct rpc_rqst *req, struct xdr_stream *xdr, void *data) { struct nfs42_removexattrres *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_removexattr(xdr, &res->cinfo); out: return status; } #endif /* __LINUX_FS_NFS_NFS4_2XDR_H */
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