11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * linux/fs/nfs/nfs3xdr.c 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * XDR functions to encode/decode NFSv3 RPC arguments and results. 51da177e4SLinus Torvalds * 61da177e4SLinus Torvalds * Copyright (C) 1996, 1997 Olaf Kirch 71da177e4SLinus Torvalds */ 81da177e4SLinus Torvalds 91da177e4SLinus Torvalds #include <linux/param.h> 101da177e4SLinus Torvalds #include <linux/time.h> 111da177e4SLinus Torvalds #include <linux/mm.h> 121da177e4SLinus Torvalds #include <linux/errno.h> 131da177e4SLinus Torvalds #include <linux/string.h> 141da177e4SLinus Torvalds #include <linux/in.h> 151da177e4SLinus Torvalds #include <linux/pagemap.h> 161da177e4SLinus Torvalds #include <linux/proc_fs.h> 171da177e4SLinus Torvalds #include <linux/kdev_t.h> 181da177e4SLinus Torvalds #include <linux/sunrpc/clnt.h> 191da177e4SLinus Torvalds #include <linux/nfs.h> 201da177e4SLinus Torvalds #include <linux/nfs3.h> 211da177e4SLinus Torvalds #include <linux/nfs_fs.h> 22b7fa0554SAndreas Gruenbacher #include <linux/nfsacl.h> 23f7b422b1SDavid Howells #include "internal.h" 241da177e4SLinus Torvalds 251da177e4SLinus Torvalds #define NFSDBG_FACILITY NFSDBG_XDR 261da177e4SLinus Torvalds 271da177e4SLinus Torvalds /* Mapping from NFS error code to "errno" error code. */ 281da177e4SLinus Torvalds #define errno_NFSERR_IO EIO 291da177e4SLinus Torvalds 301da177e4SLinus Torvalds /* 311da177e4SLinus Torvalds * Declare the space requirements for NFS arguments and replies as 321da177e4SLinus Torvalds * number of 32bit-words 331da177e4SLinus Torvalds */ 341da177e4SLinus Torvalds #define NFS3_fhandle_sz (1+16) 351da177e4SLinus Torvalds #define NFS3_fh_sz (NFS3_fhandle_sz) /* shorthand */ 361da177e4SLinus Torvalds #define NFS3_sattr_sz (15) 371da177e4SLinus Torvalds #define NFS3_filename_sz (1+(NFS3_MAXNAMLEN>>2)) 381da177e4SLinus Torvalds #define NFS3_path_sz (1+(NFS3_MAXPATHLEN>>2)) 391da177e4SLinus Torvalds #define NFS3_fattr_sz (21) 40d9c407b1SChuck Lever #define NFS3_cookieverf_sz (NFS3_COOKIEVERFSIZE>>2) 411da177e4SLinus Torvalds #define NFS3_wcc_attr_sz (6) 421da177e4SLinus Torvalds #define NFS3_pre_op_attr_sz (1+NFS3_wcc_attr_sz) 431da177e4SLinus Torvalds #define NFS3_post_op_attr_sz (1+NFS3_fattr_sz) 441da177e4SLinus Torvalds #define NFS3_wcc_data_sz (NFS3_pre_op_attr_sz+NFS3_post_op_attr_sz) 451da177e4SLinus Torvalds #define NFS3_diropargs_sz (NFS3_fh_sz+NFS3_filename_sz) 46ad96b5b5SChuck Lever 47ad96b5b5SChuck Lever #define NFS3_getattrargs_sz (NFS3_fh_sz) 48ad96b5b5SChuck Lever #define NFS3_setattrargs_sz (NFS3_fh_sz+NFS3_sattr_sz+3) 49ad96b5b5SChuck Lever #define NFS3_lookupargs_sz (NFS3_fh_sz+NFS3_filename_sz) 501da177e4SLinus Torvalds #define NFS3_accessargs_sz (NFS3_fh_sz+1) 511da177e4SLinus Torvalds #define NFS3_readlinkargs_sz (NFS3_fh_sz) 521da177e4SLinus Torvalds #define NFS3_readargs_sz (NFS3_fh_sz+3) 531da177e4SLinus Torvalds #define NFS3_writeargs_sz (NFS3_fh_sz+5) 541da177e4SLinus Torvalds #define NFS3_createargs_sz (NFS3_diropargs_sz+NFS3_sattr_sz) 551da177e4SLinus Torvalds #define NFS3_mkdirargs_sz (NFS3_diropargs_sz+NFS3_sattr_sz) 5694a6d753SChuck Lever #define NFS3_symlinkargs_sz (NFS3_diropargs_sz+1+NFS3_sattr_sz) 571da177e4SLinus Torvalds #define NFS3_mknodargs_sz (NFS3_diropargs_sz+2+NFS3_sattr_sz) 58ad96b5b5SChuck Lever #define NFS3_removeargs_sz (NFS3_fh_sz+NFS3_filename_sz) 591da177e4SLinus Torvalds #define NFS3_renameargs_sz (NFS3_diropargs_sz+NFS3_diropargs_sz) 601da177e4SLinus Torvalds #define NFS3_linkargs_sz (NFS3_fh_sz+NFS3_diropargs_sz) 61d9c407b1SChuck Lever #define NFS3_readdirargs_sz (NFS3_fh_sz+NFS3_cookieverf_sz+3) 62d9c407b1SChuck Lever #define NFS3_readdirplusargs_sz (NFS3_fh_sz+NFS3_cookieverf_sz+4) 631da177e4SLinus Torvalds #define NFS3_commitargs_sz (NFS3_fh_sz+3) 641da177e4SLinus Torvalds 65f5fc3c50SChuck Lever #define NFS3_getattrres_sz (1+NFS3_fattr_sz) 66f5fc3c50SChuck Lever #define NFS3_setattrres_sz (1+NFS3_wcc_data_sz) 67f5fc3c50SChuck Lever #define NFS3_removeres_sz (NFS3_setattrres_sz) 681da177e4SLinus Torvalds #define NFS3_lookupres_sz (1+NFS3_fh_sz+(2 * NFS3_post_op_attr_sz)) 691da177e4SLinus Torvalds #define NFS3_accessres_sz (1+NFS3_post_op_attr_sz+1) 701da177e4SLinus Torvalds #define NFS3_readlinkres_sz (1+NFS3_post_op_attr_sz+1) 711da177e4SLinus Torvalds #define NFS3_readres_sz (1+NFS3_post_op_attr_sz+3) 721da177e4SLinus Torvalds #define NFS3_writeres_sz (1+NFS3_wcc_data_sz+4) 731da177e4SLinus Torvalds #define NFS3_createres_sz (1+NFS3_fh_sz+NFS3_post_op_attr_sz+NFS3_wcc_data_sz) 741da177e4SLinus Torvalds #define NFS3_renameres_sz (1+(2 * NFS3_wcc_data_sz)) 751da177e4SLinus Torvalds #define NFS3_linkres_sz (1+NFS3_post_op_attr_sz+NFS3_wcc_data_sz) 761da177e4SLinus Torvalds #define NFS3_readdirres_sz (1+NFS3_post_op_attr_sz+2) 771da177e4SLinus Torvalds #define NFS3_fsstatres_sz (1+NFS3_post_op_attr_sz+13) 781da177e4SLinus Torvalds #define NFS3_fsinfores_sz (1+NFS3_post_op_attr_sz+12) 791da177e4SLinus Torvalds #define NFS3_pathconfres_sz (1+NFS3_post_op_attr_sz+6) 801da177e4SLinus Torvalds #define NFS3_commitres_sz (1+NFS3_wcc_data_sz+2) 811da177e4SLinus Torvalds 82b7fa0554SAndreas Gruenbacher #define ACL3_getaclargs_sz (NFS3_fh_sz+1) 83ae46141fSTrond Myklebust #define ACL3_setaclargs_sz (NFS3_fh_sz+1+ \ 84ae46141fSTrond Myklebust XDR_QUADLEN(NFS_ACL_INLINE_BUFSIZE)) 85ae46141fSTrond Myklebust #define ACL3_getaclres_sz (1+NFS3_post_op_attr_sz+1+ \ 86ae46141fSTrond Myklebust XDR_QUADLEN(NFS_ACL_INLINE_BUFSIZE)) 87b7fa0554SAndreas Gruenbacher #define ACL3_setaclres_sz (1+NFS3_post_op_attr_sz) 88b7fa0554SAndreas Gruenbacher 891da177e4SLinus Torvalds /* 901da177e4SLinus Torvalds * Map file type to S_IFMT bits 911da177e4SLinus Torvalds */ 92bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 93bca79478STrond Myklebust [NF3BAD] = 0, 94bca79478STrond Myklebust [NF3REG] = S_IFREG, 95bca79478STrond Myklebust [NF3DIR] = S_IFDIR, 96bca79478STrond Myklebust [NF3BLK] = S_IFBLK, 97bca79478STrond Myklebust [NF3CHR] = S_IFCHR, 98bca79478STrond Myklebust [NF3LNK] = S_IFLNK, 99bca79478STrond Myklebust [NF3SOCK] = S_IFSOCK, 100bca79478STrond Myklebust [NF3FIFO] = S_IFIFO, 1011da177e4SLinus Torvalds }; 1021da177e4SLinus Torvalds 1031da177e4SLinus Torvalds /* 104d9c407b1SChuck Lever * While encoding arguments, set up the reply buffer in advance to 105d9c407b1SChuck Lever * receive reply data directly into the page cache. 106d9c407b1SChuck Lever */ 107d9c407b1SChuck Lever static void prepare_reply_buffer(struct rpc_rqst *req, struct page **pages, 108d9c407b1SChuck Lever unsigned int base, unsigned int len, 109d9c407b1SChuck Lever unsigned int bufsize) 110d9c407b1SChuck Lever { 111d9c407b1SChuck Lever struct rpc_auth *auth = req->rq_cred->cr_auth; 112d9c407b1SChuck Lever unsigned int replen; 113d9c407b1SChuck Lever 114d9c407b1SChuck Lever replen = RPC_REPHDRSIZE + auth->au_rslack + bufsize; 115d9c407b1SChuck Lever xdr_inline_pages(&req->rq_rcv_buf, replen << 2, pages, base, len); 116d9c407b1SChuck Lever } 117d9c407b1SChuck Lever 118e4f93234SChuck Lever /* 119e4f93234SChuck Lever * Handle decode buffer overflows out-of-line. 120e4f93234SChuck Lever */ 121e4f93234SChuck Lever static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 122e4f93234SChuck Lever { 123e4f93234SChuck Lever dprintk("NFS: %s prematurely hit the end of our receive buffer. " 124e4f93234SChuck Lever "Remaining buffer length is %tu words.\n", 125e4f93234SChuck Lever func, xdr->end - xdr->p); 126e4f93234SChuck Lever } 127e4f93234SChuck Lever 128d9c407b1SChuck Lever 129d9c407b1SChuck Lever /* 130d9c407b1SChuck Lever * Encode/decode NFSv3 basic data types 131d9c407b1SChuck Lever * 132d9c407b1SChuck Lever * Basic NFSv3 data types are defined in section 2.5 of RFC 1813: 133d9c407b1SChuck Lever * "NFS Version 3 Protocol Specification". 134d9c407b1SChuck Lever * 135d9c407b1SChuck Lever * Not all basic data types have their own encoding and decoding 136d9c407b1SChuck Lever * functions. For run-time efficiency, some data types are encoded 137d9c407b1SChuck Lever * or decoded inline. 138d9c407b1SChuck Lever */ 139d9c407b1SChuck Lever 140d9c407b1SChuck Lever static void encode_uint32(struct xdr_stream *xdr, u32 value) 141d9c407b1SChuck Lever { 142d9c407b1SChuck Lever __be32 *p = xdr_reserve_space(xdr, 4); 143d9c407b1SChuck Lever *p = cpu_to_be32(value); 144d9c407b1SChuck Lever } 145d9c407b1SChuck Lever 146e4f93234SChuck Lever static int decode_uint32(struct xdr_stream *xdr, u32 *value) 147e4f93234SChuck Lever { 148e4f93234SChuck Lever __be32 *p; 149e4f93234SChuck Lever 150e4f93234SChuck Lever p = xdr_inline_decode(xdr, 4); 151e4f93234SChuck Lever if (unlikely(p == NULL)) 152e4f93234SChuck Lever goto out_overflow; 153e4f93234SChuck Lever *value = be32_to_cpup(p); 154e4f93234SChuck Lever return 0; 155e4f93234SChuck Lever out_overflow: 156e4f93234SChuck Lever print_overflow_msg(__func__, xdr); 157e4f93234SChuck Lever return -EIO; 158e4f93234SChuck Lever } 159e4f93234SChuck Lever 160e4f93234SChuck Lever static int decode_uint64(struct xdr_stream *xdr, u64 *value) 161e4f93234SChuck Lever { 162e4f93234SChuck Lever __be32 *p; 163e4f93234SChuck Lever 164e4f93234SChuck Lever p = xdr_inline_decode(xdr, 8); 165e4f93234SChuck Lever if (unlikely(p == NULL)) 166e4f93234SChuck Lever goto out_overflow; 167e4f93234SChuck Lever xdr_decode_hyper(p, value); 168e4f93234SChuck Lever return 0; 169e4f93234SChuck Lever out_overflow: 170e4f93234SChuck Lever print_overflow_msg(__func__, xdr); 171e4f93234SChuck Lever return -EIO; 172e4f93234SChuck Lever } 173e4f93234SChuck Lever 174e4f93234SChuck Lever /* 175e4f93234SChuck Lever * fileid3 176e4f93234SChuck Lever * 177e4f93234SChuck Lever * typedef uint64 fileid3; 178e4f93234SChuck Lever */ 179f6048709SChuck Lever static __be32 *xdr_decode_fileid3(__be32 *p, u64 *fileid) 180f6048709SChuck Lever { 181f6048709SChuck Lever return xdr_decode_hyper(p, fileid); 182f6048709SChuck Lever } 183f6048709SChuck Lever 184e4f93234SChuck Lever static int decode_fileid3(struct xdr_stream *xdr, u64 *fileid) 185e4f93234SChuck Lever { 186e4f93234SChuck Lever return decode_uint64(xdr, fileid); 187e4f93234SChuck Lever } 188e4f93234SChuck Lever 189d9c407b1SChuck Lever /* 190d9c407b1SChuck Lever * filename3 191d9c407b1SChuck Lever * 192d9c407b1SChuck Lever * typedef string filename3<>; 193d9c407b1SChuck Lever */ 194d9c407b1SChuck Lever static void encode_filename3(struct xdr_stream *xdr, 195d9c407b1SChuck Lever const char *name, u32 length) 196d9c407b1SChuck Lever { 197d9c407b1SChuck Lever __be32 *p; 198d9c407b1SChuck Lever 199d9c407b1SChuck Lever BUG_ON(length > NFS3_MAXNAMLEN); 200d9c407b1SChuck Lever p = xdr_reserve_space(xdr, 4 + length); 201d9c407b1SChuck Lever xdr_encode_opaque(p, name, length); 202d9c407b1SChuck Lever } 203d9c407b1SChuck Lever 204e4f93234SChuck Lever static int decode_inline_filename3(struct xdr_stream *xdr, 205e4f93234SChuck Lever const char **name, u32 *length) 206e4f93234SChuck Lever { 207e4f93234SChuck Lever __be32 *p; 208e4f93234SChuck Lever u32 count; 209e4f93234SChuck Lever 210e4f93234SChuck Lever p = xdr_inline_decode(xdr, 4); 211e4f93234SChuck Lever if (unlikely(p == NULL)) 212e4f93234SChuck Lever goto out_overflow; 213e4f93234SChuck Lever count = be32_to_cpup(p); 214e4f93234SChuck Lever if (count > NFS3_MAXNAMLEN) 215e4f93234SChuck Lever goto out_nametoolong; 216e4f93234SChuck Lever p = xdr_inline_decode(xdr, count); 217e4f93234SChuck Lever if (unlikely(p == NULL)) 218e4f93234SChuck Lever goto out_overflow; 219e4f93234SChuck Lever *name = (const char *)p; 220e4f93234SChuck Lever *length = count; 221e4f93234SChuck Lever return 0; 222e4f93234SChuck Lever 223e4f93234SChuck Lever out_nametoolong: 224e4f93234SChuck Lever dprintk("NFS: returned filename too long: %u\n", count); 225e4f93234SChuck Lever return -ENAMETOOLONG; 226e4f93234SChuck Lever out_overflow: 227e4f93234SChuck Lever print_overflow_msg(__func__, xdr); 228e4f93234SChuck Lever return -EIO; 229e4f93234SChuck Lever } 230e4f93234SChuck Lever 231d9c407b1SChuck Lever /* 232d9c407b1SChuck Lever * nfspath3 233d9c407b1SChuck Lever * 234d9c407b1SChuck Lever * typedef string nfspath3<>; 235d9c407b1SChuck Lever */ 236d9c407b1SChuck Lever static void encode_nfspath3(struct xdr_stream *xdr, struct page **pages, 237d9c407b1SChuck Lever const u32 length) 238d9c407b1SChuck Lever { 239d9c407b1SChuck Lever BUG_ON(length > NFS3_MAXPATHLEN); 240d9c407b1SChuck Lever encode_uint32(xdr, length); 241d9c407b1SChuck Lever xdr_write_pages(xdr, pages, 0, length); 242d9c407b1SChuck Lever } 243d9c407b1SChuck Lever 244e4f93234SChuck Lever static int decode_nfspath3(struct xdr_stream *xdr) 245e4f93234SChuck Lever { 246e4f93234SChuck Lever u32 recvd, count; 247e4f93234SChuck Lever size_t hdrlen; 248e4f93234SChuck Lever __be32 *p; 249e4f93234SChuck Lever 250e4f93234SChuck Lever p = xdr_inline_decode(xdr, 4); 251e4f93234SChuck Lever if (unlikely(p == NULL)) 252e4f93234SChuck Lever goto out_overflow; 253e4f93234SChuck Lever count = be32_to_cpup(p); 254e4f93234SChuck Lever if (unlikely(count >= xdr->buf->page_len || count > NFS3_MAXPATHLEN)) 255e4f93234SChuck Lever goto out_nametoolong; 256e4f93234SChuck Lever hdrlen = (u8 *)xdr->p - (u8 *)xdr->iov->iov_base; 257e4f93234SChuck Lever recvd = xdr->buf->len - hdrlen; 258e4f93234SChuck Lever if (unlikely(count > recvd)) 259e4f93234SChuck Lever goto out_cheating; 260e4f93234SChuck Lever 261e4f93234SChuck Lever xdr_read_pages(xdr, count); 262e4f93234SChuck Lever xdr_terminate_string(xdr->buf, count); 263e4f93234SChuck Lever return 0; 264e4f93234SChuck Lever 265e4f93234SChuck Lever out_nametoolong: 266e4f93234SChuck Lever dprintk("NFS: returned pathname too long: %u\n", count); 267e4f93234SChuck Lever return -ENAMETOOLONG; 268e4f93234SChuck Lever out_cheating: 269e4f93234SChuck Lever dprintk("NFS: server cheating in pathname result: " 270e4f93234SChuck Lever "count %u > recvd %u\n", count, recvd); 271e4f93234SChuck Lever return -EIO; 272e4f93234SChuck Lever out_overflow: 273e4f93234SChuck Lever print_overflow_msg(__func__, xdr); 274e4f93234SChuck Lever return -EIO; 275e4f93234SChuck Lever } 276e4f93234SChuck Lever 277d9c407b1SChuck Lever /* 278d9c407b1SChuck Lever * cookie3 279d9c407b1SChuck Lever * 280d9c407b1SChuck Lever * typedef uint64 cookie3 281d9c407b1SChuck Lever */ 282d9c407b1SChuck Lever static __be32 *xdr_encode_cookie3(__be32 *p, u64 cookie) 283d9c407b1SChuck Lever { 284d9c407b1SChuck Lever return xdr_encode_hyper(p, cookie); 285d9c407b1SChuck Lever } 286d9c407b1SChuck Lever 287e4f93234SChuck Lever static int decode_cookie3(struct xdr_stream *xdr, u64 *cookie) 288e4f93234SChuck Lever { 289e4f93234SChuck Lever return decode_uint64(xdr, cookie); 290e4f93234SChuck Lever } 291e4f93234SChuck Lever 292d9c407b1SChuck Lever /* 293d9c407b1SChuck Lever * cookieverf3 294d9c407b1SChuck Lever * 295d9c407b1SChuck Lever * typedef opaque cookieverf3[NFS3_COOKIEVERFSIZE]; 296d9c407b1SChuck Lever */ 297d9c407b1SChuck Lever static __be32 *xdr_encode_cookieverf3(__be32 *p, const __be32 *verifier) 298d9c407b1SChuck Lever { 299d9c407b1SChuck Lever memcpy(p, verifier, NFS3_COOKIEVERFSIZE); 300d9c407b1SChuck Lever return p + XDR_QUADLEN(NFS3_COOKIEVERFSIZE); 301d9c407b1SChuck Lever } 302d9c407b1SChuck Lever 303e4f93234SChuck Lever static int decode_cookieverf3(struct xdr_stream *xdr, __be32 *verifier) 304e4f93234SChuck Lever { 305e4f93234SChuck Lever __be32 *p; 306e4f93234SChuck Lever 307e4f93234SChuck Lever p = xdr_inline_decode(xdr, NFS3_COOKIEVERFSIZE); 308e4f93234SChuck Lever if (unlikely(p == NULL)) 309e4f93234SChuck Lever goto out_overflow; 310e4f93234SChuck Lever memcpy(verifier, p, NFS3_COOKIEVERFSIZE); 311e4f93234SChuck Lever return 0; 312e4f93234SChuck Lever out_overflow: 313e4f93234SChuck Lever print_overflow_msg(__func__, xdr); 314e4f93234SChuck Lever return -EIO; 315e4f93234SChuck Lever } 316e4f93234SChuck Lever 317d9c407b1SChuck Lever /* 318d9c407b1SChuck Lever * createverf3 319d9c407b1SChuck Lever * 320d9c407b1SChuck Lever * typedef opaque createverf3[NFS3_CREATEVERFSIZE]; 321d9c407b1SChuck Lever */ 322d9c407b1SChuck Lever static void encode_createverf3(struct xdr_stream *xdr, const __be32 *verifier) 323d9c407b1SChuck Lever { 324d9c407b1SChuck Lever __be32 *p; 325d9c407b1SChuck Lever 326d9c407b1SChuck Lever p = xdr_reserve_space(xdr, NFS3_CREATEVERFSIZE); 327d9c407b1SChuck Lever memcpy(p, verifier, NFS3_CREATEVERFSIZE); 328d9c407b1SChuck Lever } 329d9c407b1SChuck Lever 330e4f93234SChuck Lever static int decode_writeverf3(struct xdr_stream *xdr, __be32 *verifier) 331e4f93234SChuck Lever { 332e4f93234SChuck Lever __be32 *p; 333e4f93234SChuck Lever 334e4f93234SChuck Lever p = xdr_inline_decode(xdr, NFS3_WRITEVERFSIZE); 335e4f93234SChuck Lever if (unlikely(p == NULL)) 336e4f93234SChuck Lever goto out_overflow; 337e4f93234SChuck Lever memcpy(verifier, p, NFS3_WRITEVERFSIZE); 338e4f93234SChuck Lever return 0; 339e4f93234SChuck Lever out_overflow: 340e4f93234SChuck Lever print_overflow_msg(__func__, xdr); 341e4f93234SChuck Lever return -EIO; 342e4f93234SChuck Lever } 343e4f93234SChuck Lever 344e4f93234SChuck Lever /* 345e4f93234SChuck Lever * size3 346e4f93234SChuck Lever * 347e4f93234SChuck Lever * typedef uint64 size3; 348e4f93234SChuck Lever */ 349e4f93234SChuck Lever static __be32 *xdr_decode_size3(__be32 *p, u64 *size) 350e4f93234SChuck Lever { 351e4f93234SChuck Lever return xdr_decode_hyper(p, size); 352e4f93234SChuck Lever } 353e4f93234SChuck Lever 354e4f93234SChuck Lever /* 355e4f93234SChuck Lever * nfsstat3 356e4f93234SChuck Lever * 357e4f93234SChuck Lever * enum nfsstat3 { 358e4f93234SChuck Lever * NFS3_OK = 0, 359e4f93234SChuck Lever * ... 360e4f93234SChuck Lever * } 361e4f93234SChuck Lever */ 362e4f93234SChuck Lever #define NFS3_OK NFS_OK 363e4f93234SChuck Lever 364e4f93234SChuck Lever static int decode_nfsstat3(struct xdr_stream *xdr, enum nfs_stat *status) 365e4f93234SChuck Lever { 366e4f93234SChuck Lever __be32 *p; 367e4f93234SChuck Lever 368e4f93234SChuck Lever p = xdr_inline_decode(xdr, 4); 369e4f93234SChuck Lever if (unlikely(p == NULL)) 370e4f93234SChuck Lever goto out_overflow; 371e4f93234SChuck Lever *status = be32_to_cpup(p); 372e4f93234SChuck Lever return 0; 373e4f93234SChuck Lever out_overflow: 374e4f93234SChuck Lever print_overflow_msg(__func__, xdr); 375e4f93234SChuck Lever return -EIO; 376e4f93234SChuck Lever } 377e4f93234SChuck Lever 378d9c407b1SChuck Lever /* 379d9c407b1SChuck Lever * ftype3 380d9c407b1SChuck Lever * 381d9c407b1SChuck Lever * enum ftype3 { 382d9c407b1SChuck Lever * NF3REG = 1, 383d9c407b1SChuck Lever * NF3DIR = 2, 384d9c407b1SChuck Lever * NF3BLK = 3, 385d9c407b1SChuck Lever * NF3CHR = 4, 386d9c407b1SChuck Lever * NF3LNK = 5, 387d9c407b1SChuck Lever * NF3SOCK = 6, 388d9c407b1SChuck Lever * NF3FIFO = 7 389d9c407b1SChuck Lever * }; 390d9c407b1SChuck Lever */ 391d9c407b1SChuck Lever static void encode_ftype3(struct xdr_stream *xdr, const u32 type) 392d9c407b1SChuck Lever { 393d9c407b1SChuck Lever BUG_ON(type > NF3FIFO); 394d9c407b1SChuck Lever encode_uint32(xdr, type); 395d9c407b1SChuck Lever } 396d9c407b1SChuck Lever 397f6048709SChuck Lever static __be32 *xdr_decode_ftype3(__be32 *p, umode_t *mode) 398f6048709SChuck Lever { 399f6048709SChuck Lever u32 type; 400f6048709SChuck Lever 401f6048709SChuck Lever type = be32_to_cpup(p++); 402f6048709SChuck Lever if (type > NF3FIFO) 403f6048709SChuck Lever type = NF3NON; 404f6048709SChuck Lever *mode = nfs_type2fmt[type]; 405f6048709SChuck Lever return p; 406f6048709SChuck Lever } 407f6048709SChuck Lever 408d9c407b1SChuck Lever /* 409d9c407b1SChuck Lever * specdata3 410d9c407b1SChuck Lever * 411d9c407b1SChuck Lever * struct specdata3 { 412d9c407b1SChuck Lever * uint32 specdata1; 413d9c407b1SChuck Lever * uint32 specdata2; 414d9c407b1SChuck Lever * }; 415d9c407b1SChuck Lever */ 416d9c407b1SChuck Lever static void encode_specdata3(struct xdr_stream *xdr, const dev_t rdev) 417d9c407b1SChuck Lever { 418d9c407b1SChuck Lever __be32 *p; 419d9c407b1SChuck Lever 420d9c407b1SChuck Lever p = xdr_reserve_space(xdr, 8); 421d9c407b1SChuck Lever *p++ = cpu_to_be32(MAJOR(rdev)); 422d9c407b1SChuck Lever *p = cpu_to_be32(MINOR(rdev)); 423d9c407b1SChuck Lever } 424d9c407b1SChuck Lever 425f6048709SChuck Lever static __be32 *xdr_decode_specdata3(__be32 *p, dev_t *rdev) 426f6048709SChuck Lever { 427f6048709SChuck Lever unsigned int major, minor; 428f6048709SChuck Lever 429f6048709SChuck Lever major = be32_to_cpup(p++); 430f6048709SChuck Lever minor = be32_to_cpup(p++); 431f6048709SChuck Lever *rdev = MKDEV(major, minor); 432f6048709SChuck Lever if (MAJOR(*rdev) != major || MINOR(*rdev) != minor) 433f6048709SChuck Lever *rdev = 0; 434f6048709SChuck Lever return p; 435f6048709SChuck Lever } 436f6048709SChuck Lever 437d9c407b1SChuck Lever /* 438d9c407b1SChuck Lever * nfs_fh3 439d9c407b1SChuck Lever * 440d9c407b1SChuck Lever * struct nfs_fh3 { 441d9c407b1SChuck Lever * opaque data<NFS3_FHSIZE>; 442d9c407b1SChuck Lever * }; 443d9c407b1SChuck Lever */ 444d9c407b1SChuck Lever static void encode_nfs_fh3(struct xdr_stream *xdr, const struct nfs_fh *fh) 445d9c407b1SChuck Lever { 446d9c407b1SChuck Lever __be32 *p; 447d9c407b1SChuck Lever 448d9c407b1SChuck Lever BUG_ON(fh->size > NFS3_FHSIZE); 449d9c407b1SChuck Lever p = xdr_reserve_space(xdr, 4 + fh->size); 450d9c407b1SChuck Lever xdr_encode_opaque(p, fh->data, fh->size); 451d9c407b1SChuck Lever } 452d9c407b1SChuck Lever 453e4f93234SChuck Lever static int decode_nfs_fh3(struct xdr_stream *xdr, struct nfs_fh *fh) 454e4f93234SChuck Lever { 455e4f93234SChuck Lever u32 length; 456e4f93234SChuck Lever __be32 *p; 457e4f93234SChuck Lever 458e4f93234SChuck Lever p = xdr_inline_decode(xdr, 4); 459e4f93234SChuck Lever if (unlikely(p == NULL)) 460e4f93234SChuck Lever goto out_overflow; 461e4f93234SChuck Lever length = be32_to_cpup(p++); 462e4f93234SChuck Lever if (unlikely(length > NFS3_FHSIZE)) 463e4f93234SChuck Lever goto out_toobig; 464e4f93234SChuck Lever p = xdr_inline_decode(xdr, length); 465e4f93234SChuck Lever if (unlikely(p == NULL)) 466e4f93234SChuck Lever goto out_overflow; 467e4f93234SChuck Lever fh->size = length; 468e4f93234SChuck Lever memcpy(fh->data, p, length); 469e4f93234SChuck Lever return 0; 470e4f93234SChuck Lever out_toobig: 471e4f93234SChuck Lever dprintk("NFS: file handle size (%u) too big\n", length); 472e4f93234SChuck Lever return -E2BIG; 473e4f93234SChuck Lever out_overflow: 474e4f93234SChuck Lever print_overflow_msg(__func__, xdr); 475e4f93234SChuck Lever return -EIO; 476e4f93234SChuck Lever } 477e4f93234SChuck Lever 478e4f93234SChuck Lever static void zero_nfs_fh3(struct nfs_fh *fh) 479e4f93234SChuck Lever { 480e4f93234SChuck Lever memset(fh, 0, sizeof(*fh)); 481e4f93234SChuck Lever } 482e4f93234SChuck Lever 483d9c407b1SChuck Lever /* 4849d5a6434SChuck Lever * nfstime3 4859d5a6434SChuck Lever * 4869d5a6434SChuck Lever * struct nfstime3 { 4879d5a6434SChuck Lever * uint32 seconds; 4889d5a6434SChuck Lever * uint32 nseconds; 4899d5a6434SChuck Lever * }; 4909d5a6434SChuck Lever */ 4919d5a6434SChuck Lever static __be32 *xdr_encode_nfstime3(__be32 *p, const struct timespec *timep) 4929d5a6434SChuck Lever { 4939d5a6434SChuck Lever *p++ = cpu_to_be32(timep->tv_sec); 4949d5a6434SChuck Lever *p++ = cpu_to_be32(timep->tv_nsec); 4959d5a6434SChuck Lever return p; 4969d5a6434SChuck Lever } 4979d5a6434SChuck Lever 498f6048709SChuck Lever static __be32 *xdr_decode_nfstime3(__be32 *p, struct timespec *timep) 499f6048709SChuck Lever { 500f6048709SChuck Lever timep->tv_sec = be32_to_cpup(p++); 501f6048709SChuck Lever timep->tv_nsec = be32_to_cpup(p++); 502f6048709SChuck Lever return p; 503f6048709SChuck Lever } 504f6048709SChuck Lever 5059d5a6434SChuck Lever /* 506d9c407b1SChuck Lever * sattr3 507d9c407b1SChuck Lever * 508d9c407b1SChuck Lever * enum time_how { 509d9c407b1SChuck Lever * DONT_CHANGE = 0, 510d9c407b1SChuck Lever * SET_TO_SERVER_TIME = 1, 511d9c407b1SChuck Lever * SET_TO_CLIENT_TIME = 2 512d9c407b1SChuck Lever * }; 513d9c407b1SChuck Lever * 514d9c407b1SChuck Lever * union set_mode3 switch (bool set_it) { 515d9c407b1SChuck Lever * case TRUE: 516d9c407b1SChuck Lever * mode3 mode; 517d9c407b1SChuck Lever * default: 518d9c407b1SChuck Lever * void; 519d9c407b1SChuck Lever * }; 520d9c407b1SChuck Lever * 521d9c407b1SChuck Lever * union set_uid3 switch (bool set_it) { 522d9c407b1SChuck Lever * case TRUE: 523d9c407b1SChuck Lever * uid3 uid; 524d9c407b1SChuck Lever * default: 525d9c407b1SChuck Lever * void; 526d9c407b1SChuck Lever * }; 527d9c407b1SChuck Lever * 528d9c407b1SChuck Lever * union set_gid3 switch (bool set_it) { 529d9c407b1SChuck Lever * case TRUE: 530d9c407b1SChuck Lever * gid3 gid; 531d9c407b1SChuck Lever * default: 532d9c407b1SChuck Lever * void; 533d9c407b1SChuck Lever * }; 534d9c407b1SChuck Lever * 535d9c407b1SChuck Lever * union set_size3 switch (bool set_it) { 536d9c407b1SChuck Lever * case TRUE: 537d9c407b1SChuck Lever * size3 size; 538d9c407b1SChuck Lever * default: 539d9c407b1SChuck Lever * void; 540d9c407b1SChuck Lever * }; 541d9c407b1SChuck Lever * 542d9c407b1SChuck Lever * union set_atime switch (time_how set_it) { 543d9c407b1SChuck Lever * case SET_TO_CLIENT_TIME: 544d9c407b1SChuck Lever * nfstime3 atime; 545d9c407b1SChuck Lever * default: 546d9c407b1SChuck Lever * void; 547d9c407b1SChuck Lever * }; 548d9c407b1SChuck Lever * 549d9c407b1SChuck Lever * union set_mtime switch (time_how set_it) { 550d9c407b1SChuck Lever * case SET_TO_CLIENT_TIME: 551d9c407b1SChuck Lever * nfstime3 mtime; 552d9c407b1SChuck Lever * default: 553d9c407b1SChuck Lever * void; 554d9c407b1SChuck Lever * }; 555d9c407b1SChuck Lever * 556d9c407b1SChuck Lever * struct sattr3 { 557d9c407b1SChuck Lever * set_mode3 mode; 558d9c407b1SChuck Lever * set_uid3 uid; 559d9c407b1SChuck Lever * set_gid3 gid; 560d9c407b1SChuck Lever * set_size3 size; 561d9c407b1SChuck Lever * set_atime atime; 562d9c407b1SChuck Lever * set_mtime mtime; 563d9c407b1SChuck Lever * }; 564d9c407b1SChuck Lever */ 565d9c407b1SChuck Lever static void encode_sattr3(struct xdr_stream *xdr, const struct iattr *attr) 566d9c407b1SChuck Lever { 567d9c407b1SChuck Lever u32 nbytes; 568d9c407b1SChuck Lever __be32 *p; 569d9c407b1SChuck Lever 570d9c407b1SChuck Lever /* 571d9c407b1SChuck Lever * In order to make only a single xdr_reserve_space() call, 572d9c407b1SChuck Lever * pre-compute the total number of bytes to be reserved. 573d9c407b1SChuck Lever * Six boolean values, one for each set_foo field, are always 574d9c407b1SChuck Lever * present in the encoded result, so start there. 575d9c407b1SChuck Lever */ 576d9c407b1SChuck Lever nbytes = 6 * 4; 577d9c407b1SChuck Lever if (attr->ia_valid & ATTR_MODE) 578d9c407b1SChuck Lever nbytes += 4; 579d9c407b1SChuck Lever if (attr->ia_valid & ATTR_UID) 580d9c407b1SChuck Lever nbytes += 4; 581d9c407b1SChuck Lever if (attr->ia_valid & ATTR_GID) 582d9c407b1SChuck Lever nbytes += 4; 583d9c407b1SChuck Lever if (attr->ia_valid & ATTR_SIZE) 584d9c407b1SChuck Lever nbytes += 8; 585d9c407b1SChuck Lever if (attr->ia_valid & ATTR_ATIME_SET) 586d9c407b1SChuck Lever nbytes += 8; 587d9c407b1SChuck Lever if (attr->ia_valid & ATTR_MTIME_SET) 588d9c407b1SChuck Lever nbytes += 8; 589d9c407b1SChuck Lever p = xdr_reserve_space(xdr, nbytes); 590d9c407b1SChuck Lever 5919d5a6434SChuck Lever if (attr->ia_valid & ATTR_MODE) { 5929d5a6434SChuck Lever *p++ = xdr_one; 5939d5a6434SChuck Lever *p++ = cpu_to_be32(attr->ia_mode & S_IALLUGO); 5949d5a6434SChuck Lever } else 5959d5a6434SChuck Lever *p++ = xdr_zero; 5969d5a6434SChuck Lever 5979d5a6434SChuck Lever if (attr->ia_valid & ATTR_UID) { 5989d5a6434SChuck Lever *p++ = xdr_one; 5999d5a6434SChuck Lever *p++ = cpu_to_be32(attr->ia_uid); 6009d5a6434SChuck Lever } else 6019d5a6434SChuck Lever *p++ = xdr_zero; 6029d5a6434SChuck Lever 6039d5a6434SChuck Lever if (attr->ia_valid & ATTR_GID) { 6049d5a6434SChuck Lever *p++ = xdr_one; 6059d5a6434SChuck Lever *p++ = cpu_to_be32(attr->ia_gid); 6069d5a6434SChuck Lever } else 6079d5a6434SChuck Lever *p++ = xdr_zero; 6089d5a6434SChuck Lever 6099d5a6434SChuck Lever if (attr->ia_valid & ATTR_SIZE) { 6109d5a6434SChuck Lever *p++ = xdr_one; 6119d5a6434SChuck Lever p = xdr_encode_hyper(p, (u64)attr->ia_size); 6129d5a6434SChuck Lever } else 6139d5a6434SChuck Lever *p++ = xdr_zero; 6149d5a6434SChuck Lever 6159d5a6434SChuck Lever if (attr->ia_valid & ATTR_ATIME_SET) { 6169d5a6434SChuck Lever *p++ = xdr_two; 6179d5a6434SChuck Lever p = xdr_encode_nfstime3(p, &attr->ia_atime); 6189d5a6434SChuck Lever } else if (attr->ia_valid & ATTR_ATIME) { 6199d5a6434SChuck Lever *p++ = xdr_one; 6209d5a6434SChuck Lever } else 6219d5a6434SChuck Lever *p++ = xdr_zero; 6229d5a6434SChuck Lever 6239d5a6434SChuck Lever if (attr->ia_valid & ATTR_MTIME_SET) { 6249d5a6434SChuck Lever *p++ = xdr_two; 6259d5a6434SChuck Lever xdr_encode_nfstime3(p, &attr->ia_mtime); 6269d5a6434SChuck Lever } else if (attr->ia_valid & ATTR_MTIME) { 6279d5a6434SChuck Lever *p = xdr_one; 6289d5a6434SChuck Lever } else 6299d5a6434SChuck Lever *p = xdr_zero; 630d9c407b1SChuck Lever } 631d9c407b1SChuck Lever 632d9c407b1SChuck Lever /* 633e4f93234SChuck Lever * fattr3 634e4f93234SChuck Lever * 635e4f93234SChuck Lever * struct fattr3 { 636e4f93234SChuck Lever * ftype3 type; 637e4f93234SChuck Lever * mode3 mode; 638e4f93234SChuck Lever * uint32 nlink; 639e4f93234SChuck Lever * uid3 uid; 640e4f93234SChuck Lever * gid3 gid; 641e4f93234SChuck Lever * size3 size; 642e4f93234SChuck Lever * size3 used; 643e4f93234SChuck Lever * specdata3 rdev; 644e4f93234SChuck Lever * uint64 fsid; 645e4f93234SChuck Lever * fileid3 fileid; 646e4f93234SChuck Lever * nfstime3 atime; 647e4f93234SChuck Lever * nfstime3 mtime; 648e4f93234SChuck Lever * nfstime3 ctime; 649e4f93234SChuck Lever * }; 650e4f93234SChuck Lever */ 651e4f93234SChuck Lever static int decode_fattr3(struct xdr_stream *xdr, struct nfs_fattr *fattr) 652e4f93234SChuck Lever { 653f6048709SChuck Lever umode_t fmode; 654e4f93234SChuck Lever __be32 *p; 655e4f93234SChuck Lever 656e4f93234SChuck Lever p = xdr_inline_decode(xdr, NFS3_fattr_sz << 2); 657e4f93234SChuck Lever if (unlikely(p == NULL)) 658e4f93234SChuck Lever goto out_overflow; 659f6048709SChuck Lever 660f6048709SChuck Lever p = xdr_decode_ftype3(p, &fmode); 661f6048709SChuck Lever 662f6048709SChuck Lever fattr->mode = (be32_to_cpup(p++) & ~S_IFMT) | fmode; 663f6048709SChuck Lever fattr->nlink = be32_to_cpup(p++); 664f6048709SChuck Lever fattr->uid = be32_to_cpup(p++); 665f6048709SChuck Lever fattr->gid = be32_to_cpup(p++); 666f6048709SChuck Lever 667f6048709SChuck Lever p = xdr_decode_size3(p, &fattr->size); 668f6048709SChuck Lever p = xdr_decode_size3(p, &fattr->du.nfs3.used); 669f6048709SChuck Lever p = xdr_decode_specdata3(p, &fattr->rdev); 670f6048709SChuck Lever 671f6048709SChuck Lever p = xdr_decode_hyper(p, &fattr->fsid.major); 672f6048709SChuck Lever fattr->fsid.minor = 0; 673f6048709SChuck Lever 674f6048709SChuck Lever p = xdr_decode_fileid3(p, &fattr->fileid); 675f6048709SChuck Lever p = xdr_decode_nfstime3(p, &fattr->atime); 676f6048709SChuck Lever p = xdr_decode_nfstime3(p, &fattr->mtime); 677f6048709SChuck Lever xdr_decode_nfstime3(p, &fattr->ctime); 678f6048709SChuck Lever 679f6048709SChuck Lever fattr->valid |= NFS_ATTR_FATTR_V3; 680e4f93234SChuck Lever return 0; 681e4f93234SChuck Lever out_overflow: 682e4f93234SChuck Lever print_overflow_msg(__func__, xdr); 683e4f93234SChuck Lever return -EIO; 684e4f93234SChuck Lever } 685e4f93234SChuck Lever 686e4f93234SChuck Lever /* 687e4f93234SChuck Lever * post_op_attr 688e4f93234SChuck Lever * 689e4f93234SChuck Lever * union post_op_attr switch (bool attributes_follow) { 690e4f93234SChuck Lever * case TRUE: 691e4f93234SChuck Lever * fattr3 attributes; 692e4f93234SChuck Lever * case FALSE: 693e4f93234SChuck Lever * void; 694e4f93234SChuck Lever * }; 695e4f93234SChuck Lever */ 696e4f93234SChuck Lever static int decode_post_op_attr(struct xdr_stream *xdr, struct nfs_fattr *fattr) 697e4f93234SChuck Lever { 698e4f93234SChuck Lever __be32 *p; 699e4f93234SChuck Lever 700e4f93234SChuck Lever p = xdr_inline_decode(xdr, 4); 701e4f93234SChuck Lever if (unlikely(p == NULL)) 702e4f93234SChuck Lever goto out_overflow; 703e4f93234SChuck Lever if (*p != xdr_zero) 704e4f93234SChuck Lever return decode_fattr3(xdr, fattr); 705e4f93234SChuck Lever return 0; 706e4f93234SChuck Lever out_overflow: 707e4f93234SChuck Lever print_overflow_msg(__func__, xdr); 708e4f93234SChuck Lever return -EIO; 709e4f93234SChuck Lever } 710e4f93234SChuck Lever 711e4f93234SChuck Lever /* 712e4f93234SChuck Lever * wcc_attr 713e4f93234SChuck Lever * struct wcc_attr { 714e4f93234SChuck Lever * size3 size; 715e4f93234SChuck Lever * nfstime3 mtime; 716e4f93234SChuck Lever * nfstime3 ctime; 717e4f93234SChuck Lever * }; 718e4f93234SChuck Lever */ 719e4f93234SChuck Lever static int decode_wcc_attr(struct xdr_stream *xdr, struct nfs_fattr *fattr) 720e4f93234SChuck Lever { 721e4f93234SChuck Lever __be32 *p; 722e4f93234SChuck Lever 723e4f93234SChuck Lever p = xdr_inline_decode(xdr, NFS3_wcc_attr_sz << 2); 724e4f93234SChuck Lever if (unlikely(p == NULL)) 725e4f93234SChuck Lever goto out_overflow; 726f6048709SChuck Lever 727f6048709SChuck Lever fattr->valid |= NFS_ATTR_FATTR_PRESIZE 728f6048709SChuck Lever | NFS_ATTR_FATTR_PREMTIME 729f6048709SChuck Lever | NFS_ATTR_FATTR_PRECTIME; 730f6048709SChuck Lever 731f6048709SChuck Lever p = xdr_decode_size3(p, &fattr->pre_size); 732f6048709SChuck Lever p = xdr_decode_nfstime3(p, &fattr->pre_mtime); 733f6048709SChuck Lever xdr_decode_nfstime3(p, &fattr->pre_ctime); 734f6048709SChuck Lever 735e4f93234SChuck Lever return 0; 736e4f93234SChuck Lever out_overflow: 737e4f93234SChuck Lever print_overflow_msg(__func__, xdr); 738e4f93234SChuck Lever return -EIO; 739e4f93234SChuck Lever } 740e4f93234SChuck Lever 741e4f93234SChuck Lever /* 742e4f93234SChuck Lever * pre_op_attr 743e4f93234SChuck Lever * union pre_op_attr switch (bool attributes_follow) { 744e4f93234SChuck Lever * case TRUE: 745e4f93234SChuck Lever * wcc_attr attributes; 746e4f93234SChuck Lever * case FALSE: 747e4f93234SChuck Lever * void; 748e4f93234SChuck Lever * }; 749e4f93234SChuck Lever * 750e4f93234SChuck Lever * wcc_data 751e4f93234SChuck Lever * 752e4f93234SChuck Lever * struct wcc_data { 753e4f93234SChuck Lever * pre_op_attr before; 754e4f93234SChuck Lever * post_op_attr after; 755e4f93234SChuck Lever * }; 756e4f93234SChuck Lever */ 757e4f93234SChuck Lever static int decode_pre_op_attr(struct xdr_stream *xdr, struct nfs_fattr *fattr) 758e4f93234SChuck Lever { 759e4f93234SChuck Lever __be32 *p; 760e4f93234SChuck Lever 761e4f93234SChuck Lever p = xdr_inline_decode(xdr, 4); 762e4f93234SChuck Lever if (unlikely(p == NULL)) 763e4f93234SChuck Lever goto out_overflow; 764e4f93234SChuck Lever if (*p != xdr_zero) 765e4f93234SChuck Lever return decode_wcc_attr(xdr, fattr); 766e4f93234SChuck Lever return 0; 767e4f93234SChuck Lever out_overflow: 768e4f93234SChuck Lever print_overflow_msg(__func__, xdr); 769e4f93234SChuck Lever return -EIO; 770e4f93234SChuck Lever } 771e4f93234SChuck Lever 772e4f93234SChuck Lever static int decode_wcc_data(struct xdr_stream *xdr, struct nfs_fattr *fattr) 773e4f93234SChuck Lever { 774e4f93234SChuck Lever int error; 775e4f93234SChuck Lever 776e4f93234SChuck Lever error = decode_pre_op_attr(xdr, fattr); 777e4f93234SChuck Lever if (unlikely(error)) 778e4f93234SChuck Lever goto out; 779e4f93234SChuck Lever error = decode_post_op_attr(xdr, fattr); 780e4f93234SChuck Lever out: 781e4f93234SChuck Lever return error; 782e4f93234SChuck Lever } 783e4f93234SChuck Lever 784e4f93234SChuck Lever /* 785e4f93234SChuck Lever * post_op_fh3 786e4f93234SChuck Lever * 787e4f93234SChuck Lever * union post_op_fh3 switch (bool handle_follows) { 788e4f93234SChuck Lever * case TRUE: 789e4f93234SChuck Lever * nfs_fh3 handle; 790e4f93234SChuck Lever * case FALSE: 791e4f93234SChuck Lever * void; 792e4f93234SChuck Lever * }; 793e4f93234SChuck Lever */ 794e4f93234SChuck Lever static int decode_post_op_fh3(struct xdr_stream *xdr, struct nfs_fh *fh) 795e4f93234SChuck Lever { 796e4f93234SChuck Lever __be32 *p = xdr_inline_decode(xdr, 4); 797e4f93234SChuck Lever if (unlikely(p == NULL)) 798e4f93234SChuck Lever goto out_overflow; 799e4f93234SChuck Lever if (*p != xdr_zero) 800e4f93234SChuck Lever return decode_nfs_fh3(xdr, fh); 801e4f93234SChuck Lever zero_nfs_fh3(fh); 802e4f93234SChuck Lever return 0; 803e4f93234SChuck Lever out_overflow: 804e4f93234SChuck Lever print_overflow_msg(__func__, xdr); 805e4f93234SChuck Lever return -EIO; 806e4f93234SChuck Lever } 807e4f93234SChuck Lever 808e4f93234SChuck Lever /* 809d9c407b1SChuck Lever * diropargs3 810d9c407b1SChuck Lever * 811d9c407b1SChuck Lever * struct diropargs3 { 812d9c407b1SChuck Lever * nfs_fh3 dir; 813d9c407b1SChuck Lever * filename3 name; 814d9c407b1SChuck Lever * }; 815d9c407b1SChuck Lever */ 816d9c407b1SChuck Lever static void encode_diropargs3(struct xdr_stream *xdr, const struct nfs_fh *fh, 817d9c407b1SChuck Lever const char *name, u32 length) 818d9c407b1SChuck Lever { 819d9c407b1SChuck Lever encode_nfs_fh3(xdr, fh); 820d9c407b1SChuck Lever encode_filename3(xdr, name, length); 821d9c407b1SChuck Lever } 822d9c407b1SChuck Lever 823d9c407b1SChuck Lever 8241da177e4SLinus Torvalds /* 825499ff710SChuck Lever * NFSv3 XDR encode functions 826499ff710SChuck Lever * 827499ff710SChuck Lever * NFSv3 argument types are defined in section 3.3 of RFC 1813: 828499ff710SChuck Lever * "NFS Version 3 Protocol Specification". 8291da177e4SLinus Torvalds */ 8301da177e4SLinus Torvalds 8311da177e4SLinus Torvalds /* 832d9c407b1SChuck Lever * 3.3.1 GETATTR3args 833d9c407b1SChuck Lever * 834d9c407b1SChuck Lever * struct GETATTR3args { 835d9c407b1SChuck Lever * nfs_fh3 object; 836d9c407b1SChuck Lever * }; 837d9c407b1SChuck Lever */ 8389f06c719SChuck Lever static void nfs3_xdr_enc_getattr3args(struct rpc_rqst *req, 8399f06c719SChuck Lever struct xdr_stream *xdr, 840d9c407b1SChuck Lever const struct nfs_fh *fh) 841d9c407b1SChuck Lever { 8429f06c719SChuck Lever encode_nfs_fh3(xdr, fh); 843d9c407b1SChuck Lever } 844d9c407b1SChuck Lever 845d9c407b1SChuck Lever /* 846d9c407b1SChuck Lever * 3.3.2 SETATTR3args 847d9c407b1SChuck Lever * 848d9c407b1SChuck Lever * union sattrguard3 switch (bool check) { 849d9c407b1SChuck Lever * case TRUE: 850d9c407b1SChuck Lever * nfstime3 obj_ctime; 851d9c407b1SChuck Lever * case FALSE: 852d9c407b1SChuck Lever * void; 853d9c407b1SChuck Lever * }; 854d9c407b1SChuck Lever * 855d9c407b1SChuck Lever * struct SETATTR3args { 856d9c407b1SChuck Lever * nfs_fh3 object; 857d9c407b1SChuck Lever * sattr3 new_attributes; 858d9c407b1SChuck Lever * sattrguard3 guard; 859d9c407b1SChuck Lever * }; 860d9c407b1SChuck Lever */ 861d9c407b1SChuck Lever static void encode_sattrguard3(struct xdr_stream *xdr, 862d9c407b1SChuck Lever const struct nfs3_sattrargs *args) 863d9c407b1SChuck Lever { 864d9c407b1SChuck Lever __be32 *p; 865d9c407b1SChuck Lever 866d9c407b1SChuck Lever if (args->guard) { 867d9c407b1SChuck Lever p = xdr_reserve_space(xdr, 4 + 8); 868d9c407b1SChuck Lever *p++ = xdr_one; 8699d5a6434SChuck Lever xdr_encode_nfstime3(p, &args->guardtime); 870d9c407b1SChuck Lever } else { 871d9c407b1SChuck Lever p = xdr_reserve_space(xdr, 4); 872d9c407b1SChuck Lever *p = xdr_zero; 873d9c407b1SChuck Lever } 874d9c407b1SChuck Lever } 875d9c407b1SChuck Lever 8769f06c719SChuck Lever static void nfs3_xdr_enc_setattr3args(struct rpc_rqst *req, 8779f06c719SChuck Lever struct xdr_stream *xdr, 878d9c407b1SChuck Lever const struct nfs3_sattrargs *args) 879d9c407b1SChuck Lever { 8809f06c719SChuck Lever encode_nfs_fh3(xdr, args->fh); 8819f06c719SChuck Lever encode_sattr3(xdr, args->sattr); 8829f06c719SChuck Lever encode_sattrguard3(xdr, args); 883d9c407b1SChuck Lever } 884d9c407b1SChuck Lever 885d9c407b1SChuck Lever /* 886d9c407b1SChuck Lever * 3.3.3 LOOKUP3args 887d9c407b1SChuck Lever * 888d9c407b1SChuck Lever * struct LOOKUP3args { 889d9c407b1SChuck Lever * diropargs3 what; 890d9c407b1SChuck Lever * }; 891d9c407b1SChuck Lever */ 8929f06c719SChuck Lever static void nfs3_xdr_enc_lookup3args(struct rpc_rqst *req, 8939f06c719SChuck Lever struct xdr_stream *xdr, 894d9c407b1SChuck Lever const struct nfs3_diropargs *args) 895d9c407b1SChuck Lever { 8969f06c719SChuck Lever encode_diropargs3(xdr, args->fh, args->name, args->len); 897d9c407b1SChuck Lever } 898d9c407b1SChuck Lever 899d9c407b1SChuck Lever /* 900d9c407b1SChuck Lever * 3.3.4 ACCESS3args 901d9c407b1SChuck Lever * 902d9c407b1SChuck Lever * struct ACCESS3args { 903d9c407b1SChuck Lever * nfs_fh3 object; 904d9c407b1SChuck Lever * uint32 access; 905d9c407b1SChuck Lever * }; 906d9c407b1SChuck Lever */ 907d9c407b1SChuck Lever static void encode_access3args(struct xdr_stream *xdr, 908d9c407b1SChuck Lever const struct nfs3_accessargs *args) 909d9c407b1SChuck Lever { 910d9c407b1SChuck Lever encode_nfs_fh3(xdr, args->fh); 911d9c407b1SChuck Lever encode_uint32(xdr, args->access); 912d9c407b1SChuck Lever } 913d9c407b1SChuck Lever 9149f06c719SChuck Lever static void nfs3_xdr_enc_access3args(struct rpc_rqst *req, 9159f06c719SChuck Lever struct xdr_stream *xdr, 916d9c407b1SChuck Lever const struct nfs3_accessargs *args) 917d9c407b1SChuck Lever { 9189f06c719SChuck Lever encode_access3args(xdr, args); 919d9c407b1SChuck Lever } 920d9c407b1SChuck Lever 921d9c407b1SChuck Lever /* 922d9c407b1SChuck Lever * 3.3.5 READLINK3args 923d9c407b1SChuck Lever * 924d9c407b1SChuck Lever * struct READLINK3args { 925d9c407b1SChuck Lever * nfs_fh3 symlink; 926d9c407b1SChuck Lever * }; 927d9c407b1SChuck Lever */ 9289f06c719SChuck Lever static void nfs3_xdr_enc_readlink3args(struct rpc_rqst *req, 9299f06c719SChuck Lever struct xdr_stream *xdr, 930d9c407b1SChuck Lever const struct nfs3_readlinkargs *args) 931d9c407b1SChuck Lever { 9329f06c719SChuck Lever encode_nfs_fh3(xdr, args->fh); 933d9c407b1SChuck Lever prepare_reply_buffer(req, args->pages, args->pgbase, 934d9c407b1SChuck Lever args->pglen, NFS3_readlinkres_sz); 935d9c407b1SChuck Lever } 936d9c407b1SChuck Lever 937d9c407b1SChuck Lever /* 938d9c407b1SChuck Lever * 3.3.6 READ3args 939d9c407b1SChuck Lever * 940d9c407b1SChuck Lever * struct READ3args { 941d9c407b1SChuck Lever * nfs_fh3 file; 942d9c407b1SChuck Lever * offset3 offset; 943d9c407b1SChuck Lever * count3 count; 944d9c407b1SChuck Lever * }; 945d9c407b1SChuck Lever */ 946d9c407b1SChuck Lever static void encode_read3args(struct xdr_stream *xdr, 947d9c407b1SChuck Lever const struct nfs_readargs *args) 948d9c407b1SChuck Lever { 949d9c407b1SChuck Lever __be32 *p; 950d9c407b1SChuck Lever 951d9c407b1SChuck Lever encode_nfs_fh3(xdr, args->fh); 952d9c407b1SChuck Lever 953d9c407b1SChuck Lever p = xdr_reserve_space(xdr, 8 + 4); 954d9c407b1SChuck Lever p = xdr_encode_hyper(p, args->offset); 955d9c407b1SChuck Lever *p = cpu_to_be32(args->count); 956d9c407b1SChuck Lever } 957d9c407b1SChuck Lever 9589f06c719SChuck Lever static void nfs3_xdr_enc_read3args(struct rpc_rqst *req, 9599f06c719SChuck Lever struct xdr_stream *xdr, 960d9c407b1SChuck Lever const struct nfs_readargs *args) 961d9c407b1SChuck Lever { 9629f06c719SChuck Lever encode_read3args(xdr, args); 963d9c407b1SChuck Lever prepare_reply_buffer(req, args->pages, args->pgbase, 964d9c407b1SChuck Lever args->count, NFS3_readres_sz); 965d9c407b1SChuck Lever req->rq_rcv_buf.flags |= XDRBUF_READ; 966d9c407b1SChuck Lever } 967d9c407b1SChuck Lever 968d9c407b1SChuck Lever /* 969d9c407b1SChuck Lever * 3.3.7 WRITE3args 970d9c407b1SChuck Lever * 971d9c407b1SChuck Lever * enum stable_how { 972d9c407b1SChuck Lever * UNSTABLE = 0, 973d9c407b1SChuck Lever * DATA_SYNC = 1, 974d9c407b1SChuck Lever * FILE_SYNC = 2 975d9c407b1SChuck Lever * }; 976d9c407b1SChuck Lever * 977d9c407b1SChuck Lever * struct WRITE3args { 978d9c407b1SChuck Lever * nfs_fh3 file; 979d9c407b1SChuck Lever * offset3 offset; 980d9c407b1SChuck Lever * count3 count; 981d9c407b1SChuck Lever * stable_how stable; 982d9c407b1SChuck Lever * opaque data<>; 983d9c407b1SChuck Lever * }; 984d9c407b1SChuck Lever */ 985d9c407b1SChuck Lever static void encode_write3args(struct xdr_stream *xdr, 986d9c407b1SChuck Lever const struct nfs_writeargs *args) 987d9c407b1SChuck Lever { 988d9c407b1SChuck Lever __be32 *p; 989d9c407b1SChuck Lever 990d9c407b1SChuck Lever encode_nfs_fh3(xdr, args->fh); 991d9c407b1SChuck Lever 992d9c407b1SChuck Lever p = xdr_reserve_space(xdr, 8 + 4 + 4 + 4); 993d9c407b1SChuck Lever p = xdr_encode_hyper(p, args->offset); 994d9c407b1SChuck Lever *p++ = cpu_to_be32(args->count); 995d9c407b1SChuck Lever *p++ = cpu_to_be32(args->stable); 996d9c407b1SChuck Lever *p = cpu_to_be32(args->count); 997d9c407b1SChuck Lever xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 998d9c407b1SChuck Lever } 999d9c407b1SChuck Lever 10009f06c719SChuck Lever static void nfs3_xdr_enc_write3args(struct rpc_rqst *req, 10019f06c719SChuck Lever struct xdr_stream *xdr, 1002d9c407b1SChuck Lever const struct nfs_writeargs *args) 1003d9c407b1SChuck Lever { 10049f06c719SChuck Lever encode_write3args(xdr, args); 10059f06c719SChuck Lever xdr->buf->flags |= XDRBUF_WRITE; 1006d9c407b1SChuck Lever } 1007d9c407b1SChuck Lever 1008d9c407b1SChuck Lever /* 1009d9c407b1SChuck Lever * 3.3.8 CREATE3args 1010d9c407b1SChuck Lever * 1011d9c407b1SChuck Lever * enum createmode3 { 1012d9c407b1SChuck Lever * UNCHECKED = 0, 1013d9c407b1SChuck Lever * GUARDED = 1, 1014d9c407b1SChuck Lever * EXCLUSIVE = 2 1015d9c407b1SChuck Lever * }; 1016d9c407b1SChuck Lever * 1017d9c407b1SChuck Lever * union createhow3 switch (createmode3 mode) { 1018d9c407b1SChuck Lever * case UNCHECKED: 1019d9c407b1SChuck Lever * case GUARDED: 1020d9c407b1SChuck Lever * sattr3 obj_attributes; 1021d9c407b1SChuck Lever * case EXCLUSIVE: 1022d9c407b1SChuck Lever * createverf3 verf; 1023d9c407b1SChuck Lever * }; 1024d9c407b1SChuck Lever * 1025d9c407b1SChuck Lever * struct CREATE3args { 1026d9c407b1SChuck Lever * diropargs3 where; 1027d9c407b1SChuck Lever * createhow3 how; 1028d9c407b1SChuck Lever * }; 1029d9c407b1SChuck Lever */ 1030d9c407b1SChuck Lever static void encode_createhow3(struct xdr_stream *xdr, 1031d9c407b1SChuck Lever const struct nfs3_createargs *args) 1032d9c407b1SChuck Lever { 1033d9c407b1SChuck Lever encode_uint32(xdr, args->createmode); 1034d9c407b1SChuck Lever switch (args->createmode) { 1035d9c407b1SChuck Lever case NFS3_CREATE_UNCHECKED: 1036d9c407b1SChuck Lever case NFS3_CREATE_GUARDED: 1037d9c407b1SChuck Lever encode_sattr3(xdr, args->sattr); 1038d9c407b1SChuck Lever break; 1039d9c407b1SChuck Lever case NFS3_CREATE_EXCLUSIVE: 1040d9c407b1SChuck Lever encode_createverf3(xdr, args->verifier); 1041d9c407b1SChuck Lever break; 1042d9c407b1SChuck Lever default: 1043d9c407b1SChuck Lever BUG(); 1044d9c407b1SChuck Lever } 1045d9c407b1SChuck Lever } 1046d9c407b1SChuck Lever 10479f06c719SChuck Lever static void nfs3_xdr_enc_create3args(struct rpc_rqst *req, 10489f06c719SChuck Lever struct xdr_stream *xdr, 1049d9c407b1SChuck Lever const struct nfs3_createargs *args) 1050d9c407b1SChuck Lever { 10519f06c719SChuck Lever encode_diropargs3(xdr, args->fh, args->name, args->len); 10529f06c719SChuck Lever encode_createhow3(xdr, args); 1053d9c407b1SChuck Lever } 1054d9c407b1SChuck Lever 1055d9c407b1SChuck Lever /* 1056d9c407b1SChuck Lever * 3.3.9 MKDIR3args 1057d9c407b1SChuck Lever * 1058d9c407b1SChuck Lever * struct MKDIR3args { 1059d9c407b1SChuck Lever * diropargs3 where; 1060d9c407b1SChuck Lever * sattr3 attributes; 1061d9c407b1SChuck Lever * }; 1062d9c407b1SChuck Lever */ 10639f06c719SChuck Lever static void nfs3_xdr_enc_mkdir3args(struct rpc_rqst *req, 10649f06c719SChuck Lever struct xdr_stream *xdr, 1065d9c407b1SChuck Lever const struct nfs3_mkdirargs *args) 1066d9c407b1SChuck Lever { 10679f06c719SChuck Lever encode_diropargs3(xdr, args->fh, args->name, args->len); 10689f06c719SChuck Lever encode_sattr3(xdr, args->sattr); 1069d9c407b1SChuck Lever } 1070d9c407b1SChuck Lever 1071d9c407b1SChuck Lever /* 1072d9c407b1SChuck Lever * 3.3.10 SYMLINK3args 1073d9c407b1SChuck Lever * 1074d9c407b1SChuck Lever * struct symlinkdata3 { 1075d9c407b1SChuck Lever * sattr3 symlink_attributes; 1076d9c407b1SChuck Lever * nfspath3 symlink_data; 1077d9c407b1SChuck Lever * }; 1078d9c407b1SChuck Lever * 1079d9c407b1SChuck Lever * struct SYMLINK3args { 1080d9c407b1SChuck Lever * diropargs3 where; 1081d9c407b1SChuck Lever * symlinkdata3 symlink; 1082d9c407b1SChuck Lever * }; 1083d9c407b1SChuck Lever */ 1084d9c407b1SChuck Lever static void encode_symlinkdata3(struct xdr_stream *xdr, 1085d9c407b1SChuck Lever const struct nfs3_symlinkargs *args) 1086d9c407b1SChuck Lever { 1087d9c407b1SChuck Lever encode_sattr3(xdr, args->sattr); 1088d9c407b1SChuck Lever encode_nfspath3(xdr, args->pages, args->pathlen); 1089d9c407b1SChuck Lever } 1090d9c407b1SChuck Lever 10919f06c719SChuck Lever static void nfs3_xdr_enc_symlink3args(struct rpc_rqst *req, 10929f06c719SChuck Lever struct xdr_stream *xdr, 1093d9c407b1SChuck Lever const struct nfs3_symlinkargs *args) 1094d9c407b1SChuck Lever { 10959f06c719SChuck Lever encode_diropargs3(xdr, args->fromfh, args->fromname, args->fromlen); 10969f06c719SChuck Lever encode_symlinkdata3(xdr, args); 1097d9c407b1SChuck Lever } 1098d9c407b1SChuck Lever 1099d9c407b1SChuck Lever /* 1100d9c407b1SChuck Lever * 3.3.11 MKNOD3args 1101d9c407b1SChuck Lever * 1102d9c407b1SChuck Lever * struct devicedata3 { 1103d9c407b1SChuck Lever * sattr3 dev_attributes; 1104d9c407b1SChuck Lever * specdata3 spec; 1105d9c407b1SChuck Lever * }; 1106d9c407b1SChuck Lever * 1107d9c407b1SChuck Lever * union mknoddata3 switch (ftype3 type) { 1108d9c407b1SChuck Lever * case NF3CHR: 1109d9c407b1SChuck Lever * case NF3BLK: 1110d9c407b1SChuck Lever * devicedata3 device; 1111d9c407b1SChuck Lever * case NF3SOCK: 1112d9c407b1SChuck Lever * case NF3FIFO: 1113d9c407b1SChuck Lever * sattr3 pipe_attributes; 1114d9c407b1SChuck Lever * default: 1115d9c407b1SChuck Lever * void; 1116d9c407b1SChuck Lever * }; 1117d9c407b1SChuck Lever * 1118d9c407b1SChuck Lever * struct MKNOD3args { 1119d9c407b1SChuck Lever * diropargs3 where; 1120d9c407b1SChuck Lever * mknoddata3 what; 1121d9c407b1SChuck Lever * }; 1122d9c407b1SChuck Lever */ 1123d9c407b1SChuck Lever static void encode_devicedata3(struct xdr_stream *xdr, 1124d9c407b1SChuck Lever const struct nfs3_mknodargs *args) 1125d9c407b1SChuck Lever { 1126d9c407b1SChuck Lever encode_sattr3(xdr, args->sattr); 1127d9c407b1SChuck Lever encode_specdata3(xdr, args->rdev); 1128d9c407b1SChuck Lever } 1129d9c407b1SChuck Lever 1130d9c407b1SChuck Lever static void encode_mknoddata3(struct xdr_stream *xdr, 1131d9c407b1SChuck Lever const struct nfs3_mknodargs *args) 1132d9c407b1SChuck Lever { 1133d9c407b1SChuck Lever encode_ftype3(xdr, args->type); 1134d9c407b1SChuck Lever switch (args->type) { 1135d9c407b1SChuck Lever case NF3CHR: 1136d9c407b1SChuck Lever case NF3BLK: 1137d9c407b1SChuck Lever encode_devicedata3(xdr, args); 1138d9c407b1SChuck Lever break; 1139d9c407b1SChuck Lever case NF3SOCK: 1140d9c407b1SChuck Lever case NF3FIFO: 1141d9c407b1SChuck Lever encode_sattr3(xdr, args->sattr); 1142d9c407b1SChuck Lever break; 1143d9c407b1SChuck Lever case NF3REG: 1144d9c407b1SChuck Lever case NF3DIR: 1145d9c407b1SChuck Lever break; 1146d9c407b1SChuck Lever default: 1147d9c407b1SChuck Lever BUG(); 1148d9c407b1SChuck Lever } 1149d9c407b1SChuck Lever } 1150d9c407b1SChuck Lever 11519f06c719SChuck Lever static void nfs3_xdr_enc_mknod3args(struct rpc_rqst *req, 11529f06c719SChuck Lever struct xdr_stream *xdr, 1153d9c407b1SChuck Lever const struct nfs3_mknodargs *args) 1154d9c407b1SChuck Lever { 11559f06c719SChuck Lever encode_diropargs3(xdr, args->fh, args->name, args->len); 11569f06c719SChuck Lever encode_mknoddata3(xdr, args); 1157d9c407b1SChuck Lever } 1158d9c407b1SChuck Lever 1159d9c407b1SChuck Lever /* 1160d9c407b1SChuck Lever * 3.3.12 REMOVE3args 1161d9c407b1SChuck Lever * 1162d9c407b1SChuck Lever * struct REMOVE3args { 1163d9c407b1SChuck Lever * diropargs3 object; 1164d9c407b1SChuck Lever * }; 1165d9c407b1SChuck Lever */ 11669f06c719SChuck Lever static void nfs3_xdr_enc_remove3args(struct rpc_rqst *req, 11679f06c719SChuck Lever struct xdr_stream *xdr, 1168d9c407b1SChuck Lever const struct nfs_removeargs *args) 1169d9c407b1SChuck Lever { 11709f06c719SChuck Lever encode_diropargs3(xdr, args->fh, args->name.name, args->name.len); 1171d9c407b1SChuck Lever } 1172d9c407b1SChuck Lever 1173d9c407b1SChuck Lever /* 1174d9c407b1SChuck Lever * 3.3.14 RENAME3args 1175d9c407b1SChuck Lever * 1176d9c407b1SChuck Lever * struct RENAME3args { 1177d9c407b1SChuck Lever * diropargs3 from; 1178d9c407b1SChuck Lever * diropargs3 to; 1179d9c407b1SChuck Lever * }; 1180d9c407b1SChuck Lever */ 11819f06c719SChuck Lever static void nfs3_xdr_enc_rename3args(struct rpc_rqst *req, 11829f06c719SChuck Lever struct xdr_stream *xdr, 1183d9c407b1SChuck Lever const struct nfs_renameargs *args) 1184d9c407b1SChuck Lever { 1185d9c407b1SChuck Lever const struct qstr *old = args->old_name; 1186d9c407b1SChuck Lever const struct qstr *new = args->new_name; 1187d9c407b1SChuck Lever 11889f06c719SChuck Lever encode_diropargs3(xdr, args->old_dir, old->name, old->len); 11899f06c719SChuck Lever encode_diropargs3(xdr, args->new_dir, new->name, new->len); 1190d9c407b1SChuck Lever } 1191d9c407b1SChuck Lever 1192d9c407b1SChuck Lever /* 1193d9c407b1SChuck Lever * 3.3.15 LINK3args 1194d9c407b1SChuck Lever * 1195d9c407b1SChuck Lever * struct LINK3args { 1196d9c407b1SChuck Lever * nfs_fh3 file; 1197d9c407b1SChuck Lever * diropargs3 link; 1198d9c407b1SChuck Lever * }; 1199d9c407b1SChuck Lever */ 12009f06c719SChuck Lever static void nfs3_xdr_enc_link3args(struct rpc_rqst *req, 12019f06c719SChuck Lever struct xdr_stream *xdr, 1202d9c407b1SChuck Lever const struct nfs3_linkargs *args) 1203d9c407b1SChuck Lever { 12049f06c719SChuck Lever encode_nfs_fh3(xdr, args->fromfh); 12059f06c719SChuck Lever encode_diropargs3(xdr, args->tofh, args->toname, args->tolen); 1206d9c407b1SChuck Lever } 1207d9c407b1SChuck Lever 1208d9c407b1SChuck Lever /* 1209d9c407b1SChuck Lever * 3.3.16 READDIR3args 1210d9c407b1SChuck Lever * 1211d9c407b1SChuck Lever * struct READDIR3args { 1212d9c407b1SChuck Lever * nfs_fh3 dir; 1213d9c407b1SChuck Lever * cookie3 cookie; 1214d9c407b1SChuck Lever * cookieverf3 cookieverf; 1215d9c407b1SChuck Lever * count3 count; 1216d9c407b1SChuck Lever * }; 1217d9c407b1SChuck Lever */ 1218d9c407b1SChuck Lever static void encode_readdir3args(struct xdr_stream *xdr, 1219d9c407b1SChuck Lever const struct nfs3_readdirargs *args) 1220d9c407b1SChuck Lever { 1221d9c407b1SChuck Lever __be32 *p; 1222d9c407b1SChuck Lever 1223d9c407b1SChuck Lever encode_nfs_fh3(xdr, args->fh); 1224d9c407b1SChuck Lever 1225d9c407b1SChuck Lever p = xdr_reserve_space(xdr, 8 + NFS3_COOKIEVERFSIZE + 4); 1226d9c407b1SChuck Lever p = xdr_encode_cookie3(p, args->cookie); 1227d9c407b1SChuck Lever p = xdr_encode_cookieverf3(p, args->verf); 1228d9c407b1SChuck Lever *p = cpu_to_be32(args->count); 1229d9c407b1SChuck Lever } 1230d9c407b1SChuck Lever 12319f06c719SChuck Lever static void nfs3_xdr_enc_readdir3args(struct rpc_rqst *req, 12329f06c719SChuck Lever struct xdr_stream *xdr, 1233d9c407b1SChuck Lever const struct nfs3_readdirargs *args) 1234d9c407b1SChuck Lever { 12359f06c719SChuck Lever encode_readdir3args(xdr, args); 1236d9c407b1SChuck Lever prepare_reply_buffer(req, args->pages, 0, 1237d9c407b1SChuck Lever args->count, NFS3_readdirres_sz); 1238d9c407b1SChuck Lever } 1239d9c407b1SChuck Lever 1240d9c407b1SChuck Lever /* 1241d9c407b1SChuck Lever * 3.3.17 READDIRPLUS3args 1242d9c407b1SChuck Lever * 1243d9c407b1SChuck Lever * struct READDIRPLUS3args { 1244d9c407b1SChuck Lever * nfs_fh3 dir; 1245d9c407b1SChuck Lever * cookie3 cookie; 1246d9c407b1SChuck Lever * cookieverf3 cookieverf; 1247d9c407b1SChuck Lever * count3 dircount; 1248d9c407b1SChuck Lever * count3 maxcount; 1249d9c407b1SChuck Lever * }; 1250d9c407b1SChuck Lever */ 1251d9c407b1SChuck Lever static void encode_readdirplus3args(struct xdr_stream *xdr, 1252d9c407b1SChuck Lever const struct nfs3_readdirargs *args) 1253d9c407b1SChuck Lever { 1254d9c407b1SChuck Lever __be32 *p; 1255d9c407b1SChuck Lever 1256d9c407b1SChuck Lever encode_nfs_fh3(xdr, args->fh); 1257d9c407b1SChuck Lever 1258d9c407b1SChuck Lever p = xdr_reserve_space(xdr, 8 + NFS3_COOKIEVERFSIZE + 4 + 4); 1259d9c407b1SChuck Lever p = xdr_encode_cookie3(p, args->cookie); 1260d9c407b1SChuck Lever p = xdr_encode_cookieverf3(p, args->verf); 1261d9c407b1SChuck Lever 1262d9c407b1SChuck Lever /* 1263d9c407b1SChuck Lever * readdirplus: need dircount + buffer size. 1264d9c407b1SChuck Lever * We just make sure we make dircount big enough 1265d9c407b1SChuck Lever */ 1266d9c407b1SChuck Lever *p++ = cpu_to_be32(args->count >> 3); 1267d9c407b1SChuck Lever 1268d9c407b1SChuck Lever *p = cpu_to_be32(args->count); 1269d9c407b1SChuck Lever } 1270d9c407b1SChuck Lever 12719f06c719SChuck Lever static void nfs3_xdr_enc_readdirplus3args(struct rpc_rqst *req, 12729f06c719SChuck Lever struct xdr_stream *xdr, 1273d9c407b1SChuck Lever const struct nfs3_readdirargs *args) 1274d9c407b1SChuck Lever { 12759f06c719SChuck Lever encode_readdirplus3args(xdr, args); 1276d9c407b1SChuck Lever prepare_reply_buffer(req, args->pages, 0, 1277d9c407b1SChuck Lever args->count, NFS3_readdirres_sz); 1278d9c407b1SChuck Lever } 1279d9c407b1SChuck Lever 1280d9c407b1SChuck Lever /* 1281d9c407b1SChuck Lever * 3.3.21 COMMIT3args 1282d9c407b1SChuck Lever * 1283d9c407b1SChuck Lever * struct COMMIT3args { 1284d9c407b1SChuck Lever * nfs_fh3 file; 1285d9c407b1SChuck Lever * offset3 offset; 1286d9c407b1SChuck Lever * count3 count; 1287d9c407b1SChuck Lever * }; 1288d9c407b1SChuck Lever */ 1289d9c407b1SChuck Lever static void encode_commit3args(struct xdr_stream *xdr, 1290d9c407b1SChuck Lever const struct nfs_writeargs *args) 1291d9c407b1SChuck Lever { 1292d9c407b1SChuck Lever __be32 *p; 1293d9c407b1SChuck Lever 1294d9c407b1SChuck Lever encode_nfs_fh3(xdr, args->fh); 1295d9c407b1SChuck Lever 1296d9c407b1SChuck Lever p = xdr_reserve_space(xdr, 8 + 4); 1297d9c407b1SChuck Lever p = xdr_encode_hyper(p, args->offset); 1298d9c407b1SChuck Lever *p = cpu_to_be32(args->count); 1299d9c407b1SChuck Lever } 1300d9c407b1SChuck Lever 13019f06c719SChuck Lever static void nfs3_xdr_enc_commit3args(struct rpc_rqst *req, 13029f06c719SChuck Lever struct xdr_stream *xdr, 1303d9c407b1SChuck Lever const struct nfs_writeargs *args) 1304d9c407b1SChuck Lever { 13059f06c719SChuck Lever encode_commit3args(xdr, args); 1306d9c407b1SChuck Lever } 1307d9c407b1SChuck Lever 1308b7fa0554SAndreas Gruenbacher #ifdef CONFIG_NFS_V3_ACL 1309b7fa0554SAndreas Gruenbacher 13109f06c719SChuck Lever static void nfs3_xdr_enc_getacl3args(struct rpc_rqst *req, 13119f06c719SChuck Lever struct xdr_stream *xdr, 1312d9c407b1SChuck Lever const struct nfs3_getaclargs *args) 1313d9c407b1SChuck Lever { 13149f06c719SChuck Lever encode_nfs_fh3(xdr, args->fh); 13159f06c719SChuck Lever encode_uint32(xdr, args->mask); 1316d9c407b1SChuck Lever if (args->mask & (NFS_ACL | NFS_DFACL)) 1317d9c407b1SChuck Lever prepare_reply_buffer(req, args->pages, 0, 1318d9c407b1SChuck Lever NFSACL_MAXPAGES << PAGE_SHIFT, 1319d9c407b1SChuck Lever ACL3_getaclres_sz); 1320d9c407b1SChuck Lever } 1321d9c407b1SChuck Lever 13229f06c719SChuck Lever static void nfs3_xdr_enc_setacl3args(struct rpc_rqst *req, 13239f06c719SChuck Lever struct xdr_stream *xdr, 1324d9c407b1SChuck Lever const struct nfs3_setaclargs *args) 1325d9c407b1SChuck Lever { 1326d9c407b1SChuck Lever unsigned int base; 1327d9c407b1SChuck Lever int error; 1328d9c407b1SChuck Lever 13299f06c719SChuck Lever encode_nfs_fh3(xdr, NFS_FH(args->inode)); 13309f06c719SChuck Lever encode_uint32(xdr, args->mask); 1331d9c407b1SChuck Lever 1332d9c407b1SChuck Lever base = req->rq_slen; 1333ee5dc773SChuck Lever if (args->npages != 0) 1334ee5dc773SChuck Lever xdr_write_pages(xdr, args->pages, 0, args->len); 1335ee5dc773SChuck Lever else 1336ee5dc773SChuck Lever xdr_reserve_space(xdr, NFS_ACL_INLINE_BUFSIZE); 1337ee5dc773SChuck Lever 13389f06c719SChuck Lever error = nfsacl_encode(xdr->buf, base, args->inode, 1339d9c407b1SChuck Lever (args->mask & NFS_ACL) ? 1340d9c407b1SChuck Lever args->acl_access : NULL, 1, 0); 1341d9c407b1SChuck Lever BUG_ON(error < 0); 13429f06c719SChuck Lever error = nfsacl_encode(xdr->buf, base + error, args->inode, 1343d9c407b1SChuck Lever (args->mask & NFS_DFACL) ? 1344d9c407b1SChuck Lever args->acl_default : NULL, 1, 1345d9c407b1SChuck Lever NFS_ACL_DEFAULT); 1346d9c407b1SChuck Lever BUG_ON(error < 0); 1347d9c407b1SChuck Lever } 1348d9c407b1SChuck Lever 1349b7fa0554SAndreas Gruenbacher #endif /* CONFIG_NFS_V3_ACL */ 1350b7fa0554SAndreas Gruenbacher 13511da177e4SLinus Torvalds /* 1352b2cdd9c9SChuck Lever * NFSv3 XDR decode functions 1353b2cdd9c9SChuck Lever * 1354b2cdd9c9SChuck Lever * NFSv3 result types are defined in section 3.3 of RFC 1813: 1355b2cdd9c9SChuck Lever * "NFS Version 3 Protocol Specification". 13561da177e4SLinus Torvalds */ 13571da177e4SLinus Torvalds 13581da177e4SLinus Torvalds /* 1359e4f93234SChuck Lever * 3.3.1 GETATTR3res 1360e4f93234SChuck Lever * 1361e4f93234SChuck Lever * struct GETATTR3resok { 1362e4f93234SChuck Lever * fattr3 obj_attributes; 1363e4f93234SChuck Lever * }; 1364e4f93234SChuck Lever * 1365e4f93234SChuck Lever * union GETATTR3res switch (nfsstat3 status) { 1366e4f93234SChuck Lever * case NFS3_OK: 1367e4f93234SChuck Lever * GETATTR3resok resok; 1368e4f93234SChuck Lever * default: 1369e4f93234SChuck Lever * void; 1370e4f93234SChuck Lever * }; 1371e4f93234SChuck Lever */ 1372bf269551SChuck Lever static int nfs3_xdr_dec_getattr3res(struct rpc_rqst *req, 1373bf269551SChuck Lever struct xdr_stream *xdr, 1374e4f93234SChuck Lever struct nfs_fattr *result) 1375e4f93234SChuck Lever { 1376e4f93234SChuck Lever enum nfs_stat status; 1377e4f93234SChuck Lever int error; 1378e4f93234SChuck Lever 1379bf269551SChuck Lever error = decode_nfsstat3(xdr, &status); 1380e4f93234SChuck Lever if (unlikely(error)) 1381e4f93234SChuck Lever goto out; 1382e4f93234SChuck Lever if (status != NFS3_OK) 1383e4f93234SChuck Lever goto out_default; 1384bf269551SChuck Lever error = decode_fattr3(xdr, result); 1385e4f93234SChuck Lever out: 1386e4f93234SChuck Lever return error; 1387e4f93234SChuck Lever out_default: 1388e4f93234SChuck Lever return nfs_stat_to_errno(status); 1389e4f93234SChuck Lever } 1390e4f93234SChuck Lever 1391e4f93234SChuck Lever /* 1392e4f93234SChuck Lever * 3.3.2 SETATTR3res 1393e4f93234SChuck Lever * 1394e4f93234SChuck Lever * struct SETATTR3resok { 1395e4f93234SChuck Lever * wcc_data obj_wcc; 1396e4f93234SChuck Lever * }; 1397e4f93234SChuck Lever * 1398e4f93234SChuck Lever * struct SETATTR3resfail { 1399e4f93234SChuck Lever * wcc_data obj_wcc; 1400e4f93234SChuck Lever * }; 1401e4f93234SChuck Lever * 1402e4f93234SChuck Lever * union SETATTR3res switch (nfsstat3 status) { 1403e4f93234SChuck Lever * case NFS3_OK: 1404e4f93234SChuck Lever * SETATTR3resok resok; 1405e4f93234SChuck Lever * default: 1406e4f93234SChuck Lever * SETATTR3resfail resfail; 1407e4f93234SChuck Lever * }; 1408e4f93234SChuck Lever */ 1409bf269551SChuck Lever static int nfs3_xdr_dec_setattr3res(struct rpc_rqst *req, 1410bf269551SChuck Lever struct xdr_stream *xdr, 1411e4f93234SChuck Lever struct nfs_fattr *result) 1412e4f93234SChuck Lever { 1413e4f93234SChuck Lever enum nfs_stat status; 1414e4f93234SChuck Lever int error; 1415e4f93234SChuck Lever 1416bf269551SChuck Lever error = decode_nfsstat3(xdr, &status); 1417e4f93234SChuck Lever if (unlikely(error)) 1418e4f93234SChuck Lever goto out; 1419bf269551SChuck Lever error = decode_wcc_data(xdr, result); 1420e4f93234SChuck Lever if (unlikely(error)) 1421e4f93234SChuck Lever goto out; 1422e4f93234SChuck Lever if (status != NFS3_OK) 1423e4f93234SChuck Lever goto out_status; 1424e4f93234SChuck Lever out: 1425e4f93234SChuck Lever return error; 1426e4f93234SChuck Lever out_status: 1427e4f93234SChuck Lever return nfs_stat_to_errno(status); 1428e4f93234SChuck Lever } 1429e4f93234SChuck Lever 14301da177e4SLinus Torvalds /* 1431e4f93234SChuck Lever * 3.3.3 LOOKUP3res 1432e4f93234SChuck Lever * 1433e4f93234SChuck Lever * struct LOOKUP3resok { 1434e4f93234SChuck Lever * nfs_fh3 object; 1435e4f93234SChuck Lever * post_op_attr obj_attributes; 1436e4f93234SChuck Lever * post_op_attr dir_attributes; 1437e4f93234SChuck Lever * }; 1438e4f93234SChuck Lever * 1439e4f93234SChuck Lever * struct LOOKUP3resfail { 1440e4f93234SChuck Lever * post_op_attr dir_attributes; 1441e4f93234SChuck Lever * }; 1442e4f93234SChuck Lever * 1443e4f93234SChuck Lever * union LOOKUP3res switch (nfsstat3 status) { 1444e4f93234SChuck Lever * case NFS3_OK: 1445e4f93234SChuck Lever * LOOKUP3resok resok; 1446e4f93234SChuck Lever * default: 1447e4f93234SChuck Lever * LOOKUP3resfail resfail; 1448e4f93234SChuck Lever * }; 1449e4f93234SChuck Lever */ 1450bf269551SChuck Lever static int nfs3_xdr_dec_lookup3res(struct rpc_rqst *req, 1451bf269551SChuck Lever struct xdr_stream *xdr, 1452e4f93234SChuck Lever struct nfs3_diropres *result) 1453e4f93234SChuck Lever { 1454e4f93234SChuck Lever enum nfs_stat status; 1455e4f93234SChuck Lever int error; 1456e4f93234SChuck Lever 1457bf269551SChuck Lever error = decode_nfsstat3(xdr, &status); 1458e4f93234SChuck Lever if (unlikely(error)) 1459e4f93234SChuck Lever goto out; 1460e4f93234SChuck Lever if (status != NFS3_OK) 1461e4f93234SChuck Lever goto out_default; 1462bf269551SChuck Lever error = decode_nfs_fh3(xdr, result->fh); 1463e4f93234SChuck Lever if (unlikely(error)) 1464e4f93234SChuck Lever goto out; 1465bf269551SChuck Lever error = decode_post_op_attr(xdr, result->fattr); 1466e4f93234SChuck Lever if (unlikely(error)) 1467e4f93234SChuck Lever goto out; 1468bf269551SChuck Lever error = decode_post_op_attr(xdr, result->dir_attr); 1469e4f93234SChuck Lever out: 1470e4f93234SChuck Lever return error; 1471e4f93234SChuck Lever out_default: 1472bf269551SChuck Lever error = decode_post_op_attr(xdr, result->dir_attr); 1473e4f93234SChuck Lever if (unlikely(error)) 1474e4f93234SChuck Lever goto out; 1475e4f93234SChuck Lever return nfs_stat_to_errno(status); 1476e4f93234SChuck Lever } 1477e4f93234SChuck Lever 1478e4f93234SChuck Lever /* 1479e4f93234SChuck Lever * 3.3.4 ACCESS3res 1480e4f93234SChuck Lever * 1481e4f93234SChuck Lever * struct ACCESS3resok { 1482e4f93234SChuck Lever * post_op_attr obj_attributes; 1483e4f93234SChuck Lever * uint32 access; 1484e4f93234SChuck Lever * }; 1485e4f93234SChuck Lever * 1486e4f93234SChuck Lever * struct ACCESS3resfail { 1487e4f93234SChuck Lever * post_op_attr obj_attributes; 1488e4f93234SChuck Lever * }; 1489e4f93234SChuck Lever * 1490e4f93234SChuck Lever * union ACCESS3res switch (nfsstat3 status) { 1491e4f93234SChuck Lever * case NFS3_OK: 1492e4f93234SChuck Lever * ACCESS3resok resok; 1493e4f93234SChuck Lever * default: 1494e4f93234SChuck Lever * ACCESS3resfail resfail; 1495e4f93234SChuck Lever * }; 1496e4f93234SChuck Lever */ 1497bf269551SChuck Lever static int nfs3_xdr_dec_access3res(struct rpc_rqst *req, 1498bf269551SChuck Lever struct xdr_stream *xdr, 1499e4f93234SChuck Lever struct nfs3_accessres *result) 1500e4f93234SChuck Lever { 1501e4f93234SChuck Lever enum nfs_stat status; 1502e4f93234SChuck Lever int error; 1503e4f93234SChuck Lever 1504bf269551SChuck Lever error = decode_nfsstat3(xdr, &status); 1505e4f93234SChuck Lever if (unlikely(error)) 1506e4f93234SChuck Lever goto out; 1507bf269551SChuck Lever error = decode_post_op_attr(xdr, result->fattr); 1508e4f93234SChuck Lever if (unlikely(error)) 1509e4f93234SChuck Lever goto out; 1510e4f93234SChuck Lever if (status != NFS3_OK) 1511e4f93234SChuck Lever goto out_default; 1512bf269551SChuck Lever error = decode_uint32(xdr, &result->access); 1513e4f93234SChuck Lever out: 1514e4f93234SChuck Lever return error; 1515e4f93234SChuck Lever out_default: 1516e4f93234SChuck Lever return nfs_stat_to_errno(status); 1517e4f93234SChuck Lever } 1518e4f93234SChuck Lever 1519e4f93234SChuck Lever /* 1520e4f93234SChuck Lever * 3.3.5 READLINK3res 1521e4f93234SChuck Lever * 1522e4f93234SChuck Lever * struct READLINK3resok { 1523e4f93234SChuck Lever * post_op_attr symlink_attributes; 1524e4f93234SChuck Lever * nfspath3 data; 1525e4f93234SChuck Lever * }; 1526e4f93234SChuck Lever * 1527e4f93234SChuck Lever * struct READLINK3resfail { 1528e4f93234SChuck Lever * post_op_attr symlink_attributes; 1529e4f93234SChuck Lever * }; 1530e4f93234SChuck Lever * 1531e4f93234SChuck Lever * union READLINK3res switch (nfsstat3 status) { 1532e4f93234SChuck Lever * case NFS3_OK: 1533e4f93234SChuck Lever * READLINK3resok resok; 1534e4f93234SChuck Lever * default: 1535e4f93234SChuck Lever * READLINK3resfail resfail; 1536e4f93234SChuck Lever * }; 1537e4f93234SChuck Lever */ 1538bf269551SChuck Lever static int nfs3_xdr_dec_readlink3res(struct rpc_rqst *req, 1539bf269551SChuck Lever struct xdr_stream *xdr, 1540e4f93234SChuck Lever struct nfs_fattr *result) 1541e4f93234SChuck Lever { 1542e4f93234SChuck Lever enum nfs_stat status; 1543e4f93234SChuck Lever int error; 1544e4f93234SChuck Lever 1545bf269551SChuck Lever error = decode_nfsstat3(xdr, &status); 1546e4f93234SChuck Lever if (unlikely(error)) 1547e4f93234SChuck Lever goto out; 1548bf269551SChuck Lever error = decode_post_op_attr(xdr, result); 1549e4f93234SChuck Lever if (unlikely(error)) 1550e4f93234SChuck Lever goto out; 1551e4f93234SChuck Lever if (status != NFS3_OK) 1552e4f93234SChuck Lever goto out_default; 1553bf269551SChuck Lever error = decode_nfspath3(xdr); 1554e4f93234SChuck Lever out: 1555e4f93234SChuck Lever return error; 1556e4f93234SChuck Lever out_default: 1557e4f93234SChuck Lever return nfs_stat_to_errno(status); 1558e4f93234SChuck Lever } 1559e4f93234SChuck Lever 1560e4f93234SChuck Lever /* 1561e4f93234SChuck Lever * 3.3.6 READ3res 1562e4f93234SChuck Lever * 1563e4f93234SChuck Lever * struct READ3resok { 1564e4f93234SChuck Lever * post_op_attr file_attributes; 1565e4f93234SChuck Lever * count3 count; 1566e4f93234SChuck Lever * bool eof; 1567e4f93234SChuck Lever * opaque data<>; 1568e4f93234SChuck Lever * }; 1569e4f93234SChuck Lever * 1570e4f93234SChuck Lever * struct READ3resfail { 1571e4f93234SChuck Lever * post_op_attr file_attributes; 1572e4f93234SChuck Lever * }; 1573e4f93234SChuck Lever * 1574e4f93234SChuck Lever * union READ3res switch (nfsstat3 status) { 1575e4f93234SChuck Lever * case NFS3_OK: 1576e4f93234SChuck Lever * READ3resok resok; 1577e4f93234SChuck Lever * default: 1578e4f93234SChuck Lever * READ3resfail resfail; 1579e4f93234SChuck Lever * }; 1580e4f93234SChuck Lever */ 1581e4f93234SChuck Lever static int decode_read3resok(struct xdr_stream *xdr, 1582e4f93234SChuck Lever struct nfs_readres *result) 1583e4f93234SChuck Lever { 1584e4f93234SChuck Lever u32 eof, count, ocount, recvd; 1585e4f93234SChuck Lever size_t hdrlen; 1586e4f93234SChuck Lever __be32 *p; 1587e4f93234SChuck Lever 1588e4f93234SChuck Lever p = xdr_inline_decode(xdr, 4 + 4 + 4); 1589e4f93234SChuck Lever if (unlikely(p == NULL)) 1590e4f93234SChuck Lever goto out_overflow; 1591e4f93234SChuck Lever count = be32_to_cpup(p++); 1592e4f93234SChuck Lever eof = be32_to_cpup(p++); 1593e4f93234SChuck Lever ocount = be32_to_cpup(p++); 1594e4f93234SChuck Lever if (unlikely(ocount != count)) 1595e4f93234SChuck Lever goto out_mismatch; 1596e4f93234SChuck Lever hdrlen = (u8 *)xdr->p - (u8 *)xdr->iov->iov_base; 1597e4f93234SChuck Lever recvd = xdr->buf->len - hdrlen; 1598e4f93234SChuck Lever if (unlikely(count > recvd)) 1599e4f93234SChuck Lever goto out_cheating; 1600e4f93234SChuck Lever 1601e4f93234SChuck Lever out: 1602e4f93234SChuck Lever xdr_read_pages(xdr, count); 1603e4f93234SChuck Lever result->eof = eof; 1604e4f93234SChuck Lever result->count = count; 1605e4f93234SChuck Lever return count; 1606e4f93234SChuck Lever out_mismatch: 1607e4f93234SChuck Lever dprintk("NFS: READ count doesn't match length of opaque: " 1608e4f93234SChuck Lever "count %u != ocount %u\n", count, ocount); 1609e4f93234SChuck Lever return -EIO; 1610e4f93234SChuck Lever out_cheating: 1611e4f93234SChuck Lever dprintk("NFS: server cheating in read result: " 1612e4f93234SChuck Lever "count %u > recvd %u\n", count, recvd); 1613e4f93234SChuck Lever count = recvd; 1614e4f93234SChuck Lever eof = 0; 1615e4f93234SChuck Lever goto out; 1616e4f93234SChuck Lever out_overflow: 1617e4f93234SChuck Lever print_overflow_msg(__func__, xdr); 1618e4f93234SChuck Lever return -EIO; 1619e4f93234SChuck Lever } 1620e4f93234SChuck Lever 1621bf269551SChuck Lever static int nfs3_xdr_dec_read3res(struct rpc_rqst *req, struct xdr_stream *xdr, 1622e4f93234SChuck Lever struct nfs_readres *result) 1623e4f93234SChuck Lever { 1624e4f93234SChuck Lever enum nfs_stat status; 1625e4f93234SChuck Lever int error; 1626e4f93234SChuck Lever 1627bf269551SChuck Lever error = decode_nfsstat3(xdr, &status); 1628e4f93234SChuck Lever if (unlikely(error)) 1629e4f93234SChuck Lever goto out; 1630bf269551SChuck Lever error = decode_post_op_attr(xdr, result->fattr); 1631e4f93234SChuck Lever if (unlikely(error)) 1632e4f93234SChuck Lever goto out; 1633e4f93234SChuck Lever if (status != NFS3_OK) 1634e4f93234SChuck Lever goto out_status; 1635bf269551SChuck Lever error = decode_read3resok(xdr, result); 1636e4f93234SChuck Lever out: 1637e4f93234SChuck Lever return error; 1638e4f93234SChuck Lever out_status: 1639e4f93234SChuck Lever return nfs_stat_to_errno(status); 1640e4f93234SChuck Lever } 1641e4f93234SChuck Lever 1642e4f93234SChuck Lever /* 1643e4f93234SChuck Lever * 3.3.7 WRITE3res 1644e4f93234SChuck Lever * 1645e4f93234SChuck Lever * enum stable_how { 1646e4f93234SChuck Lever * UNSTABLE = 0, 1647e4f93234SChuck Lever * DATA_SYNC = 1, 1648e4f93234SChuck Lever * FILE_SYNC = 2 1649e4f93234SChuck Lever * }; 1650e4f93234SChuck Lever * 1651e4f93234SChuck Lever * struct WRITE3resok { 1652e4f93234SChuck Lever * wcc_data file_wcc; 1653e4f93234SChuck Lever * count3 count; 1654e4f93234SChuck Lever * stable_how committed; 1655e4f93234SChuck Lever * writeverf3 verf; 1656e4f93234SChuck Lever * }; 1657e4f93234SChuck Lever * 1658e4f93234SChuck Lever * struct WRITE3resfail { 1659e4f93234SChuck Lever * wcc_data file_wcc; 1660e4f93234SChuck Lever * }; 1661e4f93234SChuck Lever * 1662e4f93234SChuck Lever * union WRITE3res switch (nfsstat3 status) { 1663e4f93234SChuck Lever * case NFS3_OK: 1664e4f93234SChuck Lever * WRITE3resok resok; 1665e4f93234SChuck Lever * default: 1666e4f93234SChuck Lever * WRITE3resfail resfail; 1667e4f93234SChuck Lever * }; 1668e4f93234SChuck Lever */ 1669e4f93234SChuck Lever static int decode_write3resok(struct xdr_stream *xdr, 1670e4f93234SChuck Lever struct nfs_writeres *result) 1671e4f93234SChuck Lever { 1672e4f93234SChuck Lever __be32 *p; 1673e4f93234SChuck Lever 1674e4f93234SChuck Lever p = xdr_inline_decode(xdr, 4 + 4 + NFS3_WRITEVERFSIZE); 1675e4f93234SChuck Lever if (unlikely(p == NULL)) 1676e4f93234SChuck Lever goto out_overflow; 1677e4f93234SChuck Lever result->count = be32_to_cpup(p++); 1678e4f93234SChuck Lever result->verf->committed = be32_to_cpup(p++); 1679e4f93234SChuck Lever if (unlikely(result->verf->committed > NFS_FILE_SYNC)) 1680e4f93234SChuck Lever goto out_badvalue; 1681e4f93234SChuck Lever memcpy(result->verf->verifier, p, NFS3_WRITEVERFSIZE); 1682e4f93234SChuck Lever return result->count; 1683e4f93234SChuck Lever out_badvalue: 1684e4f93234SChuck Lever dprintk("NFS: bad stable_how value: %u\n", result->verf->committed); 1685e4f93234SChuck Lever return -EIO; 1686e4f93234SChuck Lever out_overflow: 1687e4f93234SChuck Lever print_overflow_msg(__func__, xdr); 1688e4f93234SChuck Lever return -EIO; 1689e4f93234SChuck Lever } 1690e4f93234SChuck Lever 1691bf269551SChuck Lever static int nfs3_xdr_dec_write3res(struct rpc_rqst *req, struct xdr_stream *xdr, 1692e4f93234SChuck Lever struct nfs_writeres *result) 1693e4f93234SChuck Lever { 1694e4f93234SChuck Lever enum nfs_stat status; 1695e4f93234SChuck Lever int error; 1696e4f93234SChuck Lever 1697bf269551SChuck Lever error = decode_nfsstat3(xdr, &status); 1698e4f93234SChuck Lever if (unlikely(error)) 1699e4f93234SChuck Lever goto out; 1700bf269551SChuck Lever error = decode_wcc_data(xdr, result->fattr); 1701e4f93234SChuck Lever if (unlikely(error)) 1702e4f93234SChuck Lever goto out; 1703e4f93234SChuck Lever if (status != NFS3_OK) 1704e4f93234SChuck Lever goto out_status; 1705bf269551SChuck Lever error = decode_write3resok(xdr, result); 1706e4f93234SChuck Lever out: 1707e4f93234SChuck Lever return error; 1708e4f93234SChuck Lever out_status: 1709e4f93234SChuck Lever return nfs_stat_to_errno(status); 1710e4f93234SChuck Lever } 1711e4f93234SChuck Lever 1712e4f93234SChuck Lever /* 1713e4f93234SChuck Lever * 3.3.8 CREATE3res 1714e4f93234SChuck Lever * 1715e4f93234SChuck Lever * struct CREATE3resok { 1716e4f93234SChuck Lever * post_op_fh3 obj; 1717e4f93234SChuck Lever * post_op_attr obj_attributes; 1718e4f93234SChuck Lever * wcc_data dir_wcc; 1719e4f93234SChuck Lever * }; 1720e4f93234SChuck Lever * 1721e4f93234SChuck Lever * struct CREATE3resfail { 1722e4f93234SChuck Lever * wcc_data dir_wcc; 1723e4f93234SChuck Lever * }; 1724e4f93234SChuck Lever * 1725e4f93234SChuck Lever * union CREATE3res switch (nfsstat3 status) { 1726e4f93234SChuck Lever * case NFS3_OK: 1727e4f93234SChuck Lever * CREATE3resok resok; 1728e4f93234SChuck Lever * default: 1729e4f93234SChuck Lever * CREATE3resfail resfail; 1730e4f93234SChuck Lever * }; 1731e4f93234SChuck Lever */ 1732e4f93234SChuck Lever static int decode_create3resok(struct xdr_stream *xdr, 1733e4f93234SChuck Lever struct nfs3_diropres *result) 1734e4f93234SChuck Lever { 1735e4f93234SChuck Lever int error; 1736e4f93234SChuck Lever 1737e4f93234SChuck Lever error = decode_post_op_fh3(xdr, result->fh); 1738e4f93234SChuck Lever if (unlikely(error)) 1739e4f93234SChuck Lever goto out; 1740e4f93234SChuck Lever error = decode_post_op_attr(xdr, result->fattr); 1741e4f93234SChuck Lever if (unlikely(error)) 1742e4f93234SChuck Lever goto out; 1743e4f93234SChuck Lever /* The server isn't required to return a file handle. 1744e4f93234SChuck Lever * If it didn't, force the client to perform a LOOKUP 1745e4f93234SChuck Lever * to determine the correct file handle and attribute 1746e4f93234SChuck Lever * values for the new object. */ 1747e4f93234SChuck Lever if (result->fh->size == 0) 1748e4f93234SChuck Lever result->fattr->valid = 0; 1749e4f93234SChuck Lever error = decode_wcc_data(xdr, result->dir_attr); 1750e4f93234SChuck Lever out: 1751e4f93234SChuck Lever return error; 1752e4f93234SChuck Lever } 1753e4f93234SChuck Lever 1754bf269551SChuck Lever static int nfs3_xdr_dec_create3res(struct rpc_rqst *req, 1755bf269551SChuck Lever struct xdr_stream *xdr, 1756e4f93234SChuck Lever struct nfs3_diropres *result) 1757e4f93234SChuck Lever { 1758e4f93234SChuck Lever enum nfs_stat status; 1759e4f93234SChuck Lever int error; 1760e4f93234SChuck Lever 1761bf269551SChuck Lever error = decode_nfsstat3(xdr, &status); 1762e4f93234SChuck Lever if (unlikely(error)) 1763e4f93234SChuck Lever goto out; 1764e4f93234SChuck Lever if (status != NFS3_OK) 1765e4f93234SChuck Lever goto out_default; 1766bf269551SChuck Lever error = decode_create3resok(xdr, result); 1767e4f93234SChuck Lever out: 1768e4f93234SChuck Lever return error; 1769e4f93234SChuck Lever out_default: 1770bf269551SChuck Lever error = decode_wcc_data(xdr, result->dir_attr); 1771e4f93234SChuck Lever if (unlikely(error)) 1772e4f93234SChuck Lever goto out; 1773e4f93234SChuck Lever return nfs_stat_to_errno(status); 1774e4f93234SChuck Lever } 1775e4f93234SChuck Lever 1776e4f93234SChuck Lever /* 1777e4f93234SChuck Lever * 3.3.12 REMOVE3res 1778e4f93234SChuck Lever * 1779e4f93234SChuck Lever * struct REMOVE3resok { 1780e4f93234SChuck Lever * wcc_data dir_wcc; 1781e4f93234SChuck Lever * }; 1782e4f93234SChuck Lever * 1783e4f93234SChuck Lever * struct REMOVE3resfail { 1784e4f93234SChuck Lever * wcc_data dir_wcc; 1785e4f93234SChuck Lever * }; 1786e4f93234SChuck Lever * 1787e4f93234SChuck Lever * union REMOVE3res switch (nfsstat3 status) { 1788e4f93234SChuck Lever * case NFS3_OK: 1789e4f93234SChuck Lever * REMOVE3resok resok; 1790e4f93234SChuck Lever * default: 1791e4f93234SChuck Lever * REMOVE3resfail resfail; 1792e4f93234SChuck Lever * }; 1793e4f93234SChuck Lever */ 1794bf269551SChuck Lever static int nfs3_xdr_dec_remove3res(struct rpc_rqst *req, 1795bf269551SChuck Lever struct xdr_stream *xdr, 1796e4f93234SChuck Lever struct nfs_removeres *result) 1797e4f93234SChuck Lever { 1798e4f93234SChuck Lever enum nfs_stat status; 1799e4f93234SChuck Lever int error; 1800e4f93234SChuck Lever 1801bf269551SChuck Lever error = decode_nfsstat3(xdr, &status); 1802e4f93234SChuck Lever if (unlikely(error)) 1803e4f93234SChuck Lever goto out; 1804bf269551SChuck Lever error = decode_wcc_data(xdr, result->dir_attr); 1805e4f93234SChuck Lever if (unlikely(error)) 1806e4f93234SChuck Lever goto out; 1807e4f93234SChuck Lever if (status != NFS3_OK) 1808e4f93234SChuck Lever goto out_status; 1809e4f93234SChuck Lever out: 1810e4f93234SChuck Lever return error; 1811e4f93234SChuck Lever out_status: 1812e4f93234SChuck Lever return nfs_stat_to_errno(status); 1813e4f93234SChuck Lever } 1814e4f93234SChuck Lever 1815e4f93234SChuck Lever /* 1816e4f93234SChuck Lever * 3.3.14 RENAME3res 1817e4f93234SChuck Lever * 1818e4f93234SChuck Lever * struct RENAME3resok { 1819e4f93234SChuck Lever * wcc_data fromdir_wcc; 1820e4f93234SChuck Lever * wcc_data todir_wcc; 1821e4f93234SChuck Lever * }; 1822e4f93234SChuck Lever * 1823e4f93234SChuck Lever * struct RENAME3resfail { 1824e4f93234SChuck Lever * wcc_data fromdir_wcc; 1825e4f93234SChuck Lever * wcc_data todir_wcc; 1826e4f93234SChuck Lever * }; 1827e4f93234SChuck Lever * 1828e4f93234SChuck Lever * union RENAME3res switch (nfsstat3 status) { 1829e4f93234SChuck Lever * case NFS3_OK: 1830e4f93234SChuck Lever * RENAME3resok resok; 1831e4f93234SChuck Lever * default: 1832e4f93234SChuck Lever * RENAME3resfail resfail; 1833e4f93234SChuck Lever * }; 1834e4f93234SChuck Lever */ 1835bf269551SChuck Lever static int nfs3_xdr_dec_rename3res(struct rpc_rqst *req, 1836bf269551SChuck Lever struct xdr_stream *xdr, 1837e4f93234SChuck Lever struct nfs_renameres *result) 1838e4f93234SChuck Lever { 1839e4f93234SChuck Lever enum nfs_stat status; 1840e4f93234SChuck Lever int error; 1841e4f93234SChuck Lever 1842bf269551SChuck Lever error = decode_nfsstat3(xdr, &status); 1843e4f93234SChuck Lever if (unlikely(error)) 1844e4f93234SChuck Lever goto out; 1845bf269551SChuck Lever error = decode_wcc_data(xdr, result->old_fattr); 1846e4f93234SChuck Lever if (unlikely(error)) 1847e4f93234SChuck Lever goto out; 1848bf269551SChuck Lever error = decode_wcc_data(xdr, result->new_fattr); 1849e4f93234SChuck Lever if (unlikely(error)) 1850e4f93234SChuck Lever goto out; 1851e4f93234SChuck Lever if (status != NFS3_OK) 1852e4f93234SChuck Lever goto out_status; 1853e4f93234SChuck Lever out: 1854e4f93234SChuck Lever return error; 1855e4f93234SChuck Lever out_status: 1856e4f93234SChuck Lever return nfs_stat_to_errno(status); 1857e4f93234SChuck Lever } 1858e4f93234SChuck Lever 1859e4f93234SChuck Lever /* 1860e4f93234SChuck Lever * 3.3.15 LINK3res 1861e4f93234SChuck Lever * 1862e4f93234SChuck Lever * struct LINK3resok { 1863e4f93234SChuck Lever * post_op_attr file_attributes; 1864e4f93234SChuck Lever * wcc_data linkdir_wcc; 1865e4f93234SChuck Lever * }; 1866e4f93234SChuck Lever * 1867e4f93234SChuck Lever * struct LINK3resfail { 1868e4f93234SChuck Lever * post_op_attr file_attributes; 1869e4f93234SChuck Lever * wcc_data linkdir_wcc; 1870e4f93234SChuck Lever * }; 1871e4f93234SChuck Lever * 1872e4f93234SChuck Lever * union LINK3res switch (nfsstat3 status) { 1873e4f93234SChuck Lever * case NFS3_OK: 1874e4f93234SChuck Lever * LINK3resok resok; 1875e4f93234SChuck Lever * default: 1876e4f93234SChuck Lever * LINK3resfail resfail; 1877e4f93234SChuck Lever * }; 1878e4f93234SChuck Lever */ 1879bf269551SChuck Lever static int nfs3_xdr_dec_link3res(struct rpc_rqst *req, struct xdr_stream *xdr, 1880e4f93234SChuck Lever struct nfs3_linkres *result) 1881e4f93234SChuck Lever { 1882e4f93234SChuck Lever enum nfs_stat status; 1883e4f93234SChuck Lever int error; 1884e4f93234SChuck Lever 1885bf269551SChuck Lever error = decode_nfsstat3(xdr, &status); 1886e4f93234SChuck Lever if (unlikely(error)) 1887e4f93234SChuck Lever goto out; 1888bf269551SChuck Lever error = decode_post_op_attr(xdr, result->fattr); 1889e4f93234SChuck Lever if (unlikely(error)) 1890e4f93234SChuck Lever goto out; 1891bf269551SChuck Lever error = decode_wcc_data(xdr, result->dir_attr); 1892e4f93234SChuck Lever if (unlikely(error)) 1893e4f93234SChuck Lever goto out; 1894e4f93234SChuck Lever if (status != NFS3_OK) 1895e4f93234SChuck Lever goto out_status; 1896e4f93234SChuck Lever out: 1897e4f93234SChuck Lever return error; 1898e4f93234SChuck Lever out_status: 1899e4f93234SChuck Lever return nfs_stat_to_errno(status); 1900e4f93234SChuck Lever } 1901e4f93234SChuck Lever 1902e4f93234SChuck Lever /** 1903e4f93234SChuck Lever * nfs3_decode_dirent - Decode a single NFSv3 directory entry stored in 1904e4f93234SChuck Lever * the local page cache 1905e4f93234SChuck Lever * @xdr: XDR stream where entry resides 1906e4f93234SChuck Lever * @entry: buffer to fill in with entry data 1907e4f93234SChuck Lever * @plus: boolean indicating whether this should be a readdirplus entry 1908e4f93234SChuck Lever * 1909573c4e1eSChuck Lever * Returns zero if successful, otherwise a negative errno value is 1910573c4e1eSChuck Lever * returned. 1911e4f93234SChuck Lever * 1912e4f93234SChuck Lever * This function is not invoked during READDIR reply decoding, but 1913e4f93234SChuck Lever * rather whenever an application invokes the getdents(2) system call 1914e4f93234SChuck Lever * on a directory already in our cache. 1915e4f93234SChuck Lever * 1916e4f93234SChuck Lever * 3.3.16 entry3 1917e4f93234SChuck Lever * 1918e4f93234SChuck Lever * struct entry3 { 1919e4f93234SChuck Lever * fileid3 fileid; 1920e4f93234SChuck Lever * filename3 name; 1921e4f93234SChuck Lever * cookie3 cookie; 1922e4f93234SChuck Lever * fhandle3 filehandle; 1923e4f93234SChuck Lever * post_op_attr3 attributes; 1924e4f93234SChuck Lever * entry3 *nextentry; 1925e4f93234SChuck Lever * }; 1926e4f93234SChuck Lever * 1927e4f93234SChuck Lever * 3.3.17 entryplus3 1928e4f93234SChuck Lever * struct entryplus3 { 1929e4f93234SChuck Lever * fileid3 fileid; 1930e4f93234SChuck Lever * filename3 name; 1931e4f93234SChuck Lever * cookie3 cookie; 1932e4f93234SChuck Lever * post_op_attr name_attributes; 1933e4f93234SChuck Lever * post_op_fh3 name_handle; 1934e4f93234SChuck Lever * entryplus3 *nextentry; 1935e4f93234SChuck Lever * }; 1936e4f93234SChuck Lever */ 1937573c4e1eSChuck Lever int nfs3_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, 1938573c4e1eSChuck Lever int plus) 1939e4f93234SChuck Lever { 1940e4f93234SChuck Lever struct nfs_entry old = *entry; 1941e4f93234SChuck Lever __be32 *p; 1942e4f93234SChuck Lever int error; 1943e4f93234SChuck Lever 1944e4f93234SChuck Lever p = xdr_inline_decode(xdr, 4); 1945e4f93234SChuck Lever if (unlikely(p == NULL)) 1946e4f93234SChuck Lever goto out_overflow; 1947e4f93234SChuck Lever if (*p == xdr_zero) { 1948e4f93234SChuck Lever p = xdr_inline_decode(xdr, 4); 1949e4f93234SChuck Lever if (unlikely(p == NULL)) 1950e4f93234SChuck Lever goto out_overflow; 1951e4f93234SChuck Lever if (*p == xdr_zero) 1952573c4e1eSChuck Lever return -EAGAIN; 1953e4f93234SChuck Lever entry->eof = 1; 1954573c4e1eSChuck Lever return -EBADCOOKIE; 1955e4f93234SChuck Lever } 1956e4f93234SChuck Lever 1957e4f93234SChuck Lever error = decode_fileid3(xdr, &entry->ino); 1958e4f93234SChuck Lever if (unlikely(error)) 1959573c4e1eSChuck Lever return error; 1960e4f93234SChuck Lever 1961e4f93234SChuck Lever error = decode_inline_filename3(xdr, &entry->name, &entry->len); 1962e4f93234SChuck Lever if (unlikely(error)) 1963573c4e1eSChuck Lever return error; 1964e4f93234SChuck Lever 1965e4f93234SChuck Lever entry->prev_cookie = entry->cookie; 1966e4f93234SChuck Lever error = decode_cookie3(xdr, &entry->cookie); 1967e4f93234SChuck Lever if (unlikely(error)) 1968573c4e1eSChuck Lever return error; 1969e4f93234SChuck Lever 1970e4f93234SChuck Lever entry->d_type = DT_UNKNOWN; 1971e4f93234SChuck Lever 1972e4f93234SChuck Lever if (plus) { 1973e4f93234SChuck Lever entry->fattr->valid = 0; 1974e4f93234SChuck Lever error = decode_post_op_attr(xdr, entry->fattr); 1975e4f93234SChuck Lever if (unlikely(error)) 1976573c4e1eSChuck Lever return error; 1977e4f93234SChuck Lever if (entry->fattr->valid & NFS_ATTR_FATTR_V3) 1978e4f93234SChuck Lever entry->d_type = nfs_umode_to_dtype(entry->fattr->mode); 1979e4f93234SChuck Lever 1980e4f93234SChuck Lever /* In fact, a post_op_fh3: */ 1981e4f93234SChuck Lever p = xdr_inline_decode(xdr, 4); 1982e4f93234SChuck Lever if (unlikely(p == NULL)) 1983e4f93234SChuck Lever goto out_overflow; 1984e4f93234SChuck Lever if (*p != xdr_zero) { 1985e4f93234SChuck Lever error = decode_nfs_fh3(xdr, entry->fh); 1986e4f93234SChuck Lever if (unlikely(error)) { 1987e4f93234SChuck Lever if (error == -E2BIG) 1988e4f93234SChuck Lever goto out_truncated; 1989573c4e1eSChuck Lever return error; 1990e4f93234SChuck Lever } 1991e4f93234SChuck Lever } else 1992e4f93234SChuck Lever zero_nfs_fh3(entry->fh); 1993e4f93234SChuck Lever } 1994e4f93234SChuck Lever 1995573c4e1eSChuck Lever return 0; 1996e4f93234SChuck Lever 1997e4f93234SChuck Lever out_overflow: 1998e4f93234SChuck Lever print_overflow_msg(__func__, xdr); 1999573c4e1eSChuck Lever return -EAGAIN; 2000e4f93234SChuck Lever out_truncated: 2001e4f93234SChuck Lever dprintk("NFS: directory entry contains invalid file handle\n"); 2002e4f93234SChuck Lever *entry = old; 2003573c4e1eSChuck Lever return -EAGAIN; 2004e4f93234SChuck Lever } 2005e4f93234SChuck Lever 2006e4f93234SChuck Lever /* 2007e4f93234SChuck Lever * 3.3.16 READDIR3res 2008e4f93234SChuck Lever * 2009e4f93234SChuck Lever * struct dirlist3 { 2010e4f93234SChuck Lever * entry3 *entries; 2011e4f93234SChuck Lever * bool eof; 2012e4f93234SChuck Lever * }; 2013e4f93234SChuck Lever * 2014e4f93234SChuck Lever * struct READDIR3resok { 2015e4f93234SChuck Lever * post_op_attr dir_attributes; 2016e4f93234SChuck Lever * cookieverf3 cookieverf; 2017e4f93234SChuck Lever * dirlist3 reply; 2018e4f93234SChuck Lever * }; 2019e4f93234SChuck Lever * 2020e4f93234SChuck Lever * struct READDIR3resfail { 2021e4f93234SChuck Lever * post_op_attr dir_attributes; 2022e4f93234SChuck Lever * }; 2023e4f93234SChuck Lever * 2024e4f93234SChuck Lever * union READDIR3res switch (nfsstat3 status) { 2025e4f93234SChuck Lever * case NFS3_OK: 2026e4f93234SChuck Lever * READDIR3resok resok; 2027e4f93234SChuck Lever * default: 2028e4f93234SChuck Lever * READDIR3resfail resfail; 2029e4f93234SChuck Lever * }; 2030e4f93234SChuck Lever * 2031e4f93234SChuck Lever * Read the directory contents into the page cache, but otherwise 2032e4f93234SChuck Lever * don't touch them. The actual decoding is done by nfs3_decode_entry() 2033e4f93234SChuck Lever * during subsequent nfs_readdir() calls. 2034e4f93234SChuck Lever */ 2035e4f93234SChuck Lever static int decode_dirlist3(struct xdr_stream *xdr) 2036e4f93234SChuck Lever { 2037e4f93234SChuck Lever u32 recvd, pglen; 2038e4f93234SChuck Lever size_t hdrlen; 2039e4f93234SChuck Lever 2040e4f93234SChuck Lever pglen = xdr->buf->page_len; 2041e4f93234SChuck Lever hdrlen = (u8 *)xdr->p - (u8 *)xdr->iov->iov_base; 2042e4f93234SChuck Lever recvd = xdr->buf->len - hdrlen; 2043e4f93234SChuck Lever if (unlikely(pglen > recvd)) 2044e4f93234SChuck Lever goto out_cheating; 2045e4f93234SChuck Lever out: 2046e4f93234SChuck Lever xdr_read_pages(xdr, pglen); 2047e4f93234SChuck Lever return pglen; 2048e4f93234SChuck Lever out_cheating: 2049e4f93234SChuck Lever dprintk("NFS: server cheating in readdir result: " 2050e4f93234SChuck Lever "pglen %u > recvd %u\n", pglen, recvd); 2051e4f93234SChuck Lever pglen = recvd; 2052e4f93234SChuck Lever goto out; 2053e4f93234SChuck Lever } 2054e4f93234SChuck Lever 2055e4f93234SChuck Lever static int decode_readdir3resok(struct xdr_stream *xdr, 2056e4f93234SChuck Lever struct nfs3_readdirres *result) 2057e4f93234SChuck Lever { 2058e4f93234SChuck Lever int error; 2059e4f93234SChuck Lever 2060e4f93234SChuck Lever error = decode_post_op_attr(xdr, result->dir_attr); 2061e4f93234SChuck Lever if (unlikely(error)) 2062e4f93234SChuck Lever goto out; 2063e4f93234SChuck Lever /* XXX: do we need to check if result->verf != NULL ? */ 2064e4f93234SChuck Lever error = decode_cookieverf3(xdr, result->verf); 2065e4f93234SChuck Lever if (unlikely(error)) 2066e4f93234SChuck Lever goto out; 2067e4f93234SChuck Lever error = decode_dirlist3(xdr); 2068e4f93234SChuck Lever out: 2069e4f93234SChuck Lever return error; 2070e4f93234SChuck Lever } 2071e4f93234SChuck Lever 2072bf269551SChuck Lever static int nfs3_xdr_dec_readdir3res(struct rpc_rqst *req, 2073bf269551SChuck Lever struct xdr_stream *xdr, 2074e4f93234SChuck Lever struct nfs3_readdirres *result) 2075e4f93234SChuck Lever { 2076e4f93234SChuck Lever enum nfs_stat status; 2077e4f93234SChuck Lever int error; 2078e4f93234SChuck Lever 2079bf269551SChuck Lever error = decode_nfsstat3(xdr, &status); 2080e4f93234SChuck Lever if (unlikely(error)) 2081e4f93234SChuck Lever goto out; 2082e4f93234SChuck Lever if (status != NFS3_OK) 2083e4f93234SChuck Lever goto out_default; 2084bf269551SChuck Lever error = decode_readdir3resok(xdr, result); 2085e4f93234SChuck Lever out: 2086e4f93234SChuck Lever return error; 2087e4f93234SChuck Lever out_default: 2088bf269551SChuck Lever error = decode_post_op_attr(xdr, result->dir_attr); 2089e4f93234SChuck Lever if (unlikely(error)) 2090e4f93234SChuck Lever goto out; 2091e4f93234SChuck Lever return nfs_stat_to_errno(status); 2092e4f93234SChuck Lever } 2093e4f93234SChuck Lever 2094e4f93234SChuck Lever /* 2095e4f93234SChuck Lever * 3.3.18 FSSTAT3res 2096e4f93234SChuck Lever * 2097e4f93234SChuck Lever * struct FSSTAT3resok { 2098e4f93234SChuck Lever * post_op_attr obj_attributes; 2099e4f93234SChuck Lever * size3 tbytes; 2100e4f93234SChuck Lever * size3 fbytes; 2101e4f93234SChuck Lever * size3 abytes; 2102e4f93234SChuck Lever * size3 tfiles; 2103e4f93234SChuck Lever * size3 ffiles; 2104e4f93234SChuck Lever * size3 afiles; 2105e4f93234SChuck Lever * uint32 invarsec; 2106e4f93234SChuck Lever * }; 2107e4f93234SChuck Lever * 2108e4f93234SChuck Lever * struct FSSTAT3resfail { 2109e4f93234SChuck Lever * post_op_attr obj_attributes; 2110e4f93234SChuck Lever * }; 2111e4f93234SChuck Lever * 2112e4f93234SChuck Lever * union FSSTAT3res switch (nfsstat3 status) { 2113e4f93234SChuck Lever * case NFS3_OK: 2114e4f93234SChuck Lever * FSSTAT3resok resok; 2115e4f93234SChuck Lever * default: 2116e4f93234SChuck Lever * FSSTAT3resfail resfail; 2117e4f93234SChuck Lever * }; 2118e4f93234SChuck Lever */ 2119e4f93234SChuck Lever static int decode_fsstat3resok(struct xdr_stream *xdr, 2120e4f93234SChuck Lever struct nfs_fsstat *result) 2121e4f93234SChuck Lever { 2122e4f93234SChuck Lever __be32 *p; 2123e4f93234SChuck Lever 2124e4f93234SChuck Lever p = xdr_inline_decode(xdr, 8 * 6 + 4); 2125e4f93234SChuck Lever if (unlikely(p == NULL)) 2126e4f93234SChuck Lever goto out_overflow; 2127e4f93234SChuck Lever p = xdr_decode_size3(p, &result->tbytes); 2128e4f93234SChuck Lever p = xdr_decode_size3(p, &result->fbytes); 2129e4f93234SChuck Lever p = xdr_decode_size3(p, &result->abytes); 2130e4f93234SChuck Lever p = xdr_decode_size3(p, &result->tfiles); 2131e4f93234SChuck Lever p = xdr_decode_size3(p, &result->ffiles); 2132e4f93234SChuck Lever xdr_decode_size3(p, &result->afiles); 2133e4f93234SChuck Lever /* ignore invarsec */ 2134e4f93234SChuck Lever return 0; 2135e4f93234SChuck Lever out_overflow: 2136e4f93234SChuck Lever print_overflow_msg(__func__, xdr); 2137e4f93234SChuck Lever return -EIO; 2138e4f93234SChuck Lever } 2139e4f93234SChuck Lever 2140bf269551SChuck Lever static int nfs3_xdr_dec_fsstat3res(struct rpc_rqst *req, 2141bf269551SChuck Lever struct xdr_stream *xdr, 2142e4f93234SChuck Lever struct nfs_fsstat *result) 2143e4f93234SChuck Lever { 2144e4f93234SChuck Lever enum nfs_stat status; 2145e4f93234SChuck Lever int error; 2146e4f93234SChuck Lever 2147bf269551SChuck Lever error = decode_nfsstat3(xdr, &status); 2148e4f93234SChuck Lever if (unlikely(error)) 2149e4f93234SChuck Lever goto out; 2150bf269551SChuck Lever error = decode_post_op_attr(xdr, result->fattr); 2151e4f93234SChuck Lever if (unlikely(error)) 2152e4f93234SChuck Lever goto out; 2153e4f93234SChuck Lever if (status != NFS3_OK) 2154e4f93234SChuck Lever goto out_status; 2155bf269551SChuck Lever error = decode_fsstat3resok(xdr, result); 2156e4f93234SChuck Lever out: 2157e4f93234SChuck Lever return error; 2158e4f93234SChuck Lever out_status: 2159e4f93234SChuck Lever return nfs_stat_to_errno(status); 2160e4f93234SChuck Lever } 2161e4f93234SChuck Lever 2162e4f93234SChuck Lever /* 2163e4f93234SChuck Lever * 3.3.19 FSINFO3res 2164e4f93234SChuck Lever * 2165e4f93234SChuck Lever * struct FSINFO3resok { 2166e4f93234SChuck Lever * post_op_attr obj_attributes; 2167e4f93234SChuck Lever * uint32 rtmax; 2168e4f93234SChuck Lever * uint32 rtpref; 2169e4f93234SChuck Lever * uint32 rtmult; 2170e4f93234SChuck Lever * uint32 wtmax; 2171e4f93234SChuck Lever * uint32 wtpref; 2172e4f93234SChuck Lever * uint32 wtmult; 2173e4f93234SChuck Lever * uint32 dtpref; 2174e4f93234SChuck Lever * size3 maxfilesize; 2175e4f93234SChuck Lever * nfstime3 time_delta; 2176e4f93234SChuck Lever * uint32 properties; 2177e4f93234SChuck Lever * }; 2178e4f93234SChuck Lever * 2179e4f93234SChuck Lever * struct FSINFO3resfail { 2180e4f93234SChuck Lever * post_op_attr obj_attributes; 2181e4f93234SChuck Lever * }; 2182e4f93234SChuck Lever * 2183e4f93234SChuck Lever * union FSINFO3res switch (nfsstat3 status) { 2184e4f93234SChuck Lever * case NFS3_OK: 2185e4f93234SChuck Lever * FSINFO3resok resok; 2186e4f93234SChuck Lever * default: 2187e4f93234SChuck Lever * FSINFO3resfail resfail; 2188e4f93234SChuck Lever * }; 2189e4f93234SChuck Lever */ 2190e4f93234SChuck Lever static int decode_fsinfo3resok(struct xdr_stream *xdr, 2191e4f93234SChuck Lever struct nfs_fsinfo *result) 2192e4f93234SChuck Lever { 2193e4f93234SChuck Lever __be32 *p; 2194e4f93234SChuck Lever 2195e4f93234SChuck Lever p = xdr_inline_decode(xdr, 4 * 7 + 8 + 8 + 4); 2196e4f93234SChuck Lever if (unlikely(p == NULL)) 2197e4f93234SChuck Lever goto out_overflow; 2198e4f93234SChuck Lever result->rtmax = be32_to_cpup(p++); 2199e4f93234SChuck Lever result->rtpref = be32_to_cpup(p++); 2200e4f93234SChuck Lever result->rtmult = be32_to_cpup(p++); 2201e4f93234SChuck Lever result->wtmax = be32_to_cpup(p++); 2202e4f93234SChuck Lever result->wtpref = be32_to_cpup(p++); 2203e4f93234SChuck Lever result->wtmult = be32_to_cpup(p++); 2204e4f93234SChuck Lever result->dtpref = be32_to_cpup(p++); 2205e4f93234SChuck Lever p = xdr_decode_size3(p, &result->maxfilesize); 2206f6048709SChuck Lever xdr_decode_nfstime3(p, &result->time_delta); 2207e4f93234SChuck Lever 2208e4f93234SChuck Lever /* ignore properties */ 2209e4f93234SChuck Lever result->lease_time = 0; 2210e4f93234SChuck Lever return 0; 2211e4f93234SChuck Lever out_overflow: 2212e4f93234SChuck Lever print_overflow_msg(__func__, xdr); 2213e4f93234SChuck Lever return -EIO; 2214e4f93234SChuck Lever } 2215e4f93234SChuck Lever 2216bf269551SChuck Lever static int nfs3_xdr_dec_fsinfo3res(struct rpc_rqst *req, 2217bf269551SChuck Lever struct xdr_stream *xdr, 2218e4f93234SChuck Lever struct nfs_fsinfo *result) 2219e4f93234SChuck Lever { 2220e4f93234SChuck Lever enum nfs_stat status; 2221e4f93234SChuck Lever int error; 2222e4f93234SChuck Lever 2223bf269551SChuck Lever error = decode_nfsstat3(xdr, &status); 2224e4f93234SChuck Lever if (unlikely(error)) 2225e4f93234SChuck Lever goto out; 2226bf269551SChuck Lever error = decode_post_op_attr(xdr, result->fattr); 2227e4f93234SChuck Lever if (unlikely(error)) 2228e4f93234SChuck Lever goto out; 2229e4f93234SChuck Lever if (status != NFS3_OK) 2230e4f93234SChuck Lever goto out_status; 2231bf269551SChuck Lever error = decode_fsinfo3resok(xdr, result); 2232e4f93234SChuck Lever out: 2233e4f93234SChuck Lever return error; 2234e4f93234SChuck Lever out_status: 2235e4f93234SChuck Lever return nfs_stat_to_errno(status); 2236e4f93234SChuck Lever } 2237e4f93234SChuck Lever 2238e4f93234SChuck Lever /* 2239e4f93234SChuck Lever * 3.3.20 PATHCONF3res 2240e4f93234SChuck Lever * 2241e4f93234SChuck Lever * struct PATHCONF3resok { 2242e4f93234SChuck Lever * post_op_attr obj_attributes; 2243e4f93234SChuck Lever * uint32 linkmax; 2244e4f93234SChuck Lever * uint32 name_max; 2245e4f93234SChuck Lever * bool no_trunc; 2246e4f93234SChuck Lever * bool chown_restricted; 2247e4f93234SChuck Lever * bool case_insensitive; 2248e4f93234SChuck Lever * bool case_preserving; 2249e4f93234SChuck Lever * }; 2250e4f93234SChuck Lever * 2251e4f93234SChuck Lever * struct PATHCONF3resfail { 2252e4f93234SChuck Lever * post_op_attr obj_attributes; 2253e4f93234SChuck Lever * }; 2254e4f93234SChuck Lever * 2255e4f93234SChuck Lever * union PATHCONF3res switch (nfsstat3 status) { 2256e4f93234SChuck Lever * case NFS3_OK: 2257e4f93234SChuck Lever * PATHCONF3resok resok; 2258e4f93234SChuck Lever * default: 2259e4f93234SChuck Lever * PATHCONF3resfail resfail; 2260e4f93234SChuck Lever * }; 2261e4f93234SChuck Lever */ 2262e4f93234SChuck Lever static int decode_pathconf3resok(struct xdr_stream *xdr, 2263e4f93234SChuck Lever struct nfs_pathconf *result) 2264e4f93234SChuck Lever { 2265e4f93234SChuck Lever __be32 *p; 2266e4f93234SChuck Lever 2267e4f93234SChuck Lever p = xdr_inline_decode(xdr, 4 * 6); 2268e4f93234SChuck Lever if (unlikely(p == NULL)) 2269e4f93234SChuck Lever goto out_overflow; 2270e4f93234SChuck Lever result->max_link = be32_to_cpup(p++); 2271e4f93234SChuck Lever result->max_namelen = be32_to_cpup(p); 2272e4f93234SChuck Lever /* ignore remaining fields */ 2273e4f93234SChuck Lever return 0; 2274e4f93234SChuck Lever out_overflow: 2275e4f93234SChuck Lever print_overflow_msg(__func__, xdr); 2276e4f93234SChuck Lever return -EIO; 2277e4f93234SChuck Lever } 2278e4f93234SChuck Lever 2279bf269551SChuck Lever static int nfs3_xdr_dec_pathconf3res(struct rpc_rqst *req, 2280bf269551SChuck Lever struct xdr_stream *xdr, 2281e4f93234SChuck Lever struct nfs_pathconf *result) 2282e4f93234SChuck Lever { 2283e4f93234SChuck Lever enum nfs_stat status; 2284e4f93234SChuck Lever int error; 2285e4f93234SChuck Lever 2286bf269551SChuck Lever error = decode_nfsstat3(xdr, &status); 2287e4f93234SChuck Lever if (unlikely(error)) 2288e4f93234SChuck Lever goto out; 2289bf269551SChuck Lever error = decode_post_op_attr(xdr, result->fattr); 2290e4f93234SChuck Lever if (unlikely(error)) 2291e4f93234SChuck Lever goto out; 2292e4f93234SChuck Lever if (status != NFS3_OK) 2293e4f93234SChuck Lever goto out_status; 2294bf269551SChuck Lever error = decode_pathconf3resok(xdr, result); 2295e4f93234SChuck Lever out: 2296e4f93234SChuck Lever return error; 2297e4f93234SChuck Lever out_status: 2298e4f93234SChuck Lever return nfs_stat_to_errno(status); 2299e4f93234SChuck Lever } 2300e4f93234SChuck Lever 2301e4f93234SChuck Lever /* 2302e4f93234SChuck Lever * 3.3.21 COMMIT3res 2303e4f93234SChuck Lever * 2304e4f93234SChuck Lever * struct COMMIT3resok { 2305e4f93234SChuck Lever * wcc_data file_wcc; 2306e4f93234SChuck Lever * writeverf3 verf; 2307e4f93234SChuck Lever * }; 2308e4f93234SChuck Lever * 2309e4f93234SChuck Lever * struct COMMIT3resfail { 2310e4f93234SChuck Lever * wcc_data file_wcc; 2311e4f93234SChuck Lever * }; 2312e4f93234SChuck Lever * 2313e4f93234SChuck Lever * union COMMIT3res switch (nfsstat3 status) { 2314e4f93234SChuck Lever * case NFS3_OK: 2315e4f93234SChuck Lever * COMMIT3resok resok; 2316e4f93234SChuck Lever * default: 2317e4f93234SChuck Lever * COMMIT3resfail resfail; 2318e4f93234SChuck Lever * }; 2319e4f93234SChuck Lever */ 2320bf269551SChuck Lever static int nfs3_xdr_dec_commit3res(struct rpc_rqst *req, 2321bf269551SChuck Lever struct xdr_stream *xdr, 2322e4f93234SChuck Lever struct nfs_writeres *result) 2323e4f93234SChuck Lever { 2324e4f93234SChuck Lever enum nfs_stat status; 2325e4f93234SChuck Lever int error; 2326e4f93234SChuck Lever 2327bf269551SChuck Lever error = decode_nfsstat3(xdr, &status); 2328e4f93234SChuck Lever if (unlikely(error)) 2329e4f93234SChuck Lever goto out; 2330bf269551SChuck Lever error = decode_wcc_data(xdr, result->fattr); 2331e4f93234SChuck Lever if (unlikely(error)) 2332e4f93234SChuck Lever goto out; 2333e4f93234SChuck Lever if (status != NFS3_OK) 2334e4f93234SChuck Lever goto out_status; 2335bf269551SChuck Lever error = decode_writeverf3(xdr, result->verf->verifier); 2336e4f93234SChuck Lever out: 2337e4f93234SChuck Lever return error; 2338e4f93234SChuck Lever out_status: 2339e4f93234SChuck Lever return nfs_stat_to_errno(status); 2340e4f93234SChuck Lever } 2341e4f93234SChuck Lever 2342b7fa0554SAndreas Gruenbacher #ifdef CONFIG_NFS_V3_ACL 2343b7fa0554SAndreas Gruenbacher 2344e4f93234SChuck Lever static inline int decode_getacl3resok(struct xdr_stream *xdr, 2345e4f93234SChuck Lever struct nfs3_getaclres *result) 2346e4f93234SChuck Lever { 2347e4f93234SChuck Lever struct posix_acl **acl; 2348e4f93234SChuck Lever unsigned int *aclcnt; 2349e4f93234SChuck Lever size_t hdrlen; 2350e4f93234SChuck Lever int error; 2351e4f93234SChuck Lever 2352e4f93234SChuck Lever error = decode_post_op_attr(xdr, result->fattr); 2353e4f93234SChuck Lever if (unlikely(error)) 2354e4f93234SChuck Lever goto out; 2355e4f93234SChuck Lever error = decode_uint32(xdr, &result->mask); 2356e4f93234SChuck Lever if (unlikely(error)) 2357e4f93234SChuck Lever goto out; 2358e4f93234SChuck Lever error = -EINVAL; 2359e4f93234SChuck Lever if (result->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT)) 2360e4f93234SChuck Lever goto out; 2361e4f93234SChuck Lever 2362e4f93234SChuck Lever hdrlen = (u8 *)xdr->p - (u8 *)xdr->iov->iov_base; 2363e4f93234SChuck Lever 2364e4f93234SChuck Lever acl = NULL; 2365e4f93234SChuck Lever if (result->mask & NFS_ACL) 2366e4f93234SChuck Lever acl = &result->acl_access; 2367e4f93234SChuck Lever aclcnt = NULL; 2368e4f93234SChuck Lever if (result->mask & NFS_ACLCNT) 2369e4f93234SChuck Lever aclcnt = &result->acl_access_count; 2370e4f93234SChuck Lever error = nfsacl_decode(xdr->buf, hdrlen, aclcnt, acl); 2371e4f93234SChuck Lever if (unlikely(error <= 0)) 2372e4f93234SChuck Lever goto out; 2373e4f93234SChuck Lever 2374e4f93234SChuck Lever acl = NULL; 2375e4f93234SChuck Lever if (result->mask & NFS_DFACL) 2376e4f93234SChuck Lever acl = &result->acl_default; 2377e4f93234SChuck Lever aclcnt = NULL; 2378e4f93234SChuck Lever if (result->mask & NFS_DFACLCNT) 2379e4f93234SChuck Lever aclcnt = &result->acl_default_count; 2380e4f93234SChuck Lever error = nfsacl_decode(xdr->buf, hdrlen + error, aclcnt, acl); 2381e4f93234SChuck Lever if (unlikely(error <= 0)) 2382e4f93234SChuck Lever return error; 2383e4f93234SChuck Lever error = 0; 2384e4f93234SChuck Lever out: 2385e4f93234SChuck Lever return error; 2386e4f93234SChuck Lever } 2387e4f93234SChuck Lever 2388bf269551SChuck Lever static int nfs3_xdr_dec_getacl3res(struct rpc_rqst *req, 2389bf269551SChuck Lever struct xdr_stream *xdr, 2390e4f93234SChuck Lever struct nfs3_getaclres *result) 2391e4f93234SChuck Lever { 2392e4f93234SChuck Lever enum nfs_stat status; 2393e4f93234SChuck Lever int error; 2394e4f93234SChuck Lever 2395bf269551SChuck Lever error = decode_nfsstat3(xdr, &status); 2396e4f93234SChuck Lever if (unlikely(error)) 2397e4f93234SChuck Lever goto out; 2398e4f93234SChuck Lever if (status != NFS3_OK) 2399e4f93234SChuck Lever goto out_default; 2400bf269551SChuck Lever error = decode_getacl3resok(xdr, result); 2401e4f93234SChuck Lever out: 2402e4f93234SChuck Lever return error; 2403e4f93234SChuck Lever out_default: 2404e4f93234SChuck Lever return nfs_stat_to_errno(status); 2405e4f93234SChuck Lever } 2406e4f93234SChuck Lever 2407bf269551SChuck Lever static int nfs3_xdr_dec_setacl3res(struct rpc_rqst *req, 2408bf269551SChuck Lever struct xdr_stream *xdr, 2409e4f93234SChuck Lever struct nfs_fattr *result) 2410e4f93234SChuck Lever { 2411e4f93234SChuck Lever enum nfs_stat status; 2412e4f93234SChuck Lever int error; 2413e4f93234SChuck Lever 2414bf269551SChuck Lever error = decode_nfsstat3(xdr, &status); 2415e4f93234SChuck Lever if (unlikely(error)) 2416e4f93234SChuck Lever goto out; 2417e4f93234SChuck Lever if (status != NFS3_OK) 2418e4f93234SChuck Lever goto out_default; 2419bf269551SChuck Lever error = decode_post_op_attr(xdr, result); 2420e4f93234SChuck Lever out: 2421e4f93234SChuck Lever return error; 2422e4f93234SChuck Lever out_default: 2423e4f93234SChuck Lever return nfs_stat_to_errno(status); 2424e4f93234SChuck Lever } 2425e4f93234SChuck Lever 2426b7fa0554SAndreas Gruenbacher #endif /* CONFIG_NFS_V3_ACL */ 2427b7fa0554SAndreas Gruenbacher 24281da177e4SLinus Torvalds #define PROC(proc, argtype, restype, timer) \ 24291da177e4SLinus Torvalds [NFS3PROC_##proc] = { \ 24301da177e4SLinus Torvalds .p_proc = NFS3PROC_##proc, \ 24319f06c719SChuck Lever .p_encode = (kxdreproc_t)nfs3_xdr_enc_##argtype##3args, \ 2432bf269551SChuck Lever .p_decode = (kxdrdproc_t)nfs3_xdr_dec_##restype##3res, \ 2433ad96b5b5SChuck Lever .p_arglen = NFS3_##argtype##args_sz, \ 2434f5fc3c50SChuck Lever .p_replen = NFS3_##restype##res_sz, \ 2435cc0175c1SChuck Lever .p_timer = timer, \ 2436cc0175c1SChuck Lever .p_statidx = NFS3PROC_##proc, \ 2437cc0175c1SChuck Lever .p_name = #proc, \ 24381da177e4SLinus Torvalds } 24391da177e4SLinus Torvalds 24401da177e4SLinus Torvalds struct rpc_procinfo nfs3_procedures[] = { 2441f5fc3c50SChuck Lever PROC(GETATTR, getattr, getattr, 1), 2442f5fc3c50SChuck Lever PROC(SETATTR, setattr, setattr, 0), 2443f5fc3c50SChuck Lever PROC(LOOKUP, lookup, lookup, 2), 2444f5fc3c50SChuck Lever PROC(ACCESS, access, access, 1), 2445f5fc3c50SChuck Lever PROC(READLINK, readlink, readlink, 3), 2446f5fc3c50SChuck Lever PROC(READ, read, read, 3), 2447f5fc3c50SChuck Lever PROC(WRITE, write, write, 4), 2448f5fc3c50SChuck Lever PROC(CREATE, create, create, 0), 2449f5fc3c50SChuck Lever PROC(MKDIR, mkdir, create, 0), 2450f5fc3c50SChuck Lever PROC(SYMLINK, symlink, create, 0), 2451f5fc3c50SChuck Lever PROC(MKNOD, mknod, create, 0), 2452f5fc3c50SChuck Lever PROC(REMOVE, remove, remove, 0), 2453f5fc3c50SChuck Lever PROC(RMDIR, lookup, setattr, 0), 2454f5fc3c50SChuck Lever PROC(RENAME, rename, rename, 0), 2455f5fc3c50SChuck Lever PROC(LINK, link, link, 0), 2456f5fc3c50SChuck Lever PROC(READDIR, readdir, readdir, 3), 2457f5fc3c50SChuck Lever PROC(READDIRPLUS, readdirplus, readdir, 3), 2458f5fc3c50SChuck Lever PROC(FSSTAT, getattr, fsstat, 0), 2459f5fc3c50SChuck Lever PROC(FSINFO, getattr, fsinfo, 0), 2460f5fc3c50SChuck Lever PROC(PATHCONF, getattr, pathconf, 0), 2461f5fc3c50SChuck Lever PROC(COMMIT, commit, commit, 5), 24621da177e4SLinus Torvalds }; 24631da177e4SLinus Torvalds 2464a613fa16STrond Myklebust const struct rpc_version nfs_version3 = { 24651da177e4SLinus Torvalds .number = 3, 2466e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs3_procedures), 24671da177e4SLinus Torvalds .procs = nfs3_procedures 24681da177e4SLinus Torvalds }; 24691da177e4SLinus Torvalds 2470b7fa0554SAndreas Gruenbacher #ifdef CONFIG_NFS_V3_ACL 2471b7fa0554SAndreas Gruenbacher static struct rpc_procinfo nfs3_acl_procedures[] = { 2472b7fa0554SAndreas Gruenbacher [ACLPROC3_GETACL] = { 2473b7fa0554SAndreas Gruenbacher .p_proc = ACLPROC3_GETACL, 24749f06c719SChuck Lever .p_encode = (kxdreproc_t)nfs3_xdr_enc_getacl3args, 2475bf269551SChuck Lever .p_decode = (kxdrdproc_t)nfs3_xdr_dec_getacl3res, 24762bea90d4SChuck Lever .p_arglen = ACL3_getaclargs_sz, 24772bea90d4SChuck Lever .p_replen = ACL3_getaclres_sz, 2478b7fa0554SAndreas Gruenbacher .p_timer = 1, 2479cc0175c1SChuck Lever .p_name = "GETACL", 2480b7fa0554SAndreas Gruenbacher }, 2481b7fa0554SAndreas Gruenbacher [ACLPROC3_SETACL] = { 2482b7fa0554SAndreas Gruenbacher .p_proc = ACLPROC3_SETACL, 24839f06c719SChuck Lever .p_encode = (kxdreproc_t)nfs3_xdr_enc_setacl3args, 2484bf269551SChuck Lever .p_decode = (kxdrdproc_t)nfs3_xdr_dec_setacl3res, 24852bea90d4SChuck Lever .p_arglen = ACL3_setaclargs_sz, 24862bea90d4SChuck Lever .p_replen = ACL3_setaclres_sz, 2487b7fa0554SAndreas Gruenbacher .p_timer = 0, 2488cc0175c1SChuck Lever .p_name = "SETACL", 2489b7fa0554SAndreas Gruenbacher }, 2490b7fa0554SAndreas Gruenbacher }; 2491b7fa0554SAndreas Gruenbacher 2492a613fa16STrond Myklebust const struct rpc_version nfsacl_version3 = { 2493b7fa0554SAndreas Gruenbacher .number = 3, 2494b7fa0554SAndreas Gruenbacher .nrprocs = sizeof(nfs3_acl_procedures)/ 2495b7fa0554SAndreas Gruenbacher sizeof(nfs3_acl_procedures[0]), 2496b7fa0554SAndreas Gruenbacher .procs = nfs3_acl_procedures, 2497b7fa0554SAndreas Gruenbacher }; 2498b7fa0554SAndreas Gruenbacher #endif /* CONFIG_NFS_V3_ACL */ 2499