2005-04-17 02:20:36 +04:00
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/*
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* linux/fs/nfs/nfs3xdr.c
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*
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* XDR functions to encode/decode NFSv3 RPC arguments and results.
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*
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* Copyright (C) 1996, 1997 Olaf Kirch
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*/
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#include <linux/param.h>
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#include <linux/time.h>
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#include <linux/mm.h>
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#include <linux/errno.h>
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#include <linux/string.h>
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#include <linux/in.h>
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#include <linux/pagemap.h>
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#include <linux/proc_fs.h>
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#include <linux/kdev_t.h>
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#include <linux/sunrpc/clnt.h>
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#include <linux/nfs.h>
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#include <linux/nfs3.h>
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#include <linux/nfs_fs.h>
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2005-06-22 21:16:27 +04:00
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#include <linux/nfsacl.h>
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NFS: Split fs/nfs/inode.c
As fs/nfs/inode.c is rather large, heterogenous and unwieldy, the attached
patch splits it up into a number of files:
(*) fs/nfs/inode.c
Strictly inode specific functions.
(*) fs/nfs/super.c
Superblock management functions for NFS and NFS4, normal access, clones
and referrals. The NFS4 superblock functions _could_ move out into a
separate conditionally compiled file, but it's probably not worth it as
there're so many common bits.
(*) fs/nfs/namespace.c
Some namespace-specific functions have been moved here.
(*) fs/nfs/nfs4namespace.c
NFS4-specific namespace functions (this could be merged into the previous
file). This file is conditionally compiled.
(*) fs/nfs/internal.h
Inter-file declarations, plus a few simple utility functions moved from
fs/nfs/inode.c.
Additionally, all the in-.c-file externs have been moved here, and those
files they were moved from now includes this file.
For the most part, the functions have not been changed, only some multiplexor
functions have changed significantly.
I've also:
(*) Added some extra banner comments above some functions.
(*) Rearranged the function order within the files to be more logical and
better grouped (IMO), though someone may prefer a different order.
(*) Reduced the number of #ifdefs in .c files.
(*) Added missing __init and __exit directives.
Signed-Off-By: David Howells <dhowells@redhat.com>
2006-06-09 17:34:33 +04:00
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#include "internal.h"
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2005-04-17 02:20:36 +04:00
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#define NFSDBG_FACILITY NFSDBG_XDR
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/* Mapping from NFS error code to "errno" error code. */
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#define errno_NFSERR_IO EIO
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/*
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* Declare the space requirements for NFS arguments and replies as
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* number of 32bit-words
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*/
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#define NFS3_fhandle_sz (1+16)
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#define NFS3_fh_sz (NFS3_fhandle_sz) /* shorthand */
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#define NFS3_sattr_sz (15)
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#define NFS3_filename_sz (1+(NFS3_MAXNAMLEN>>2))
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#define NFS3_path_sz (1+(NFS3_MAXPATHLEN>>2))
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#define NFS3_fattr_sz (21)
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2010-12-14 17:55:50 +03:00
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#define NFS3_cookieverf_sz (NFS3_COOKIEVERFSIZE>>2)
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2010-12-14 17:56:42 +03:00
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#define NFS3_wcc_attr_sz (6)
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2005-04-17 02:20:36 +04:00
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#define NFS3_pre_op_attr_sz (1+NFS3_wcc_attr_sz)
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#define NFS3_post_op_attr_sz (1+NFS3_fattr_sz)
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2010-12-14 17:56:42 +03:00
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#define NFS3_wcc_data_sz (NFS3_pre_op_attr_sz+NFS3_post_op_attr_sz)
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2005-04-17 02:20:36 +04:00
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#define NFS3_diropargs_sz (NFS3_fh_sz+NFS3_filename_sz)
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2010-12-14 17:56:01 +03:00
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#define NFS3_getattrargs_sz (NFS3_fh_sz)
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#define NFS3_setattrargs_sz (NFS3_fh_sz+NFS3_sattr_sz+3)
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#define NFS3_lookupargs_sz (NFS3_fh_sz+NFS3_filename_sz)
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2005-04-17 02:20:36 +04:00
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#define NFS3_accessargs_sz (NFS3_fh_sz+1)
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#define NFS3_readlinkargs_sz (NFS3_fh_sz)
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#define NFS3_readargs_sz (NFS3_fh_sz+3)
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#define NFS3_writeargs_sz (NFS3_fh_sz+5)
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#define NFS3_createargs_sz (NFS3_diropargs_sz+NFS3_sattr_sz)
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#define NFS3_mkdirargs_sz (NFS3_diropargs_sz+NFS3_sattr_sz)
|
2006-08-23 04:06:23 +04:00
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#define NFS3_symlinkargs_sz (NFS3_diropargs_sz+1+NFS3_sattr_sz)
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2005-04-17 02:20:36 +04:00
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#define NFS3_mknodargs_sz (NFS3_diropargs_sz+2+NFS3_sattr_sz)
|
2010-12-14 17:56:01 +03:00
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#define NFS3_removeargs_sz (NFS3_fh_sz+NFS3_filename_sz)
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2005-04-17 02:20:36 +04:00
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#define NFS3_renameargs_sz (NFS3_diropargs_sz+NFS3_diropargs_sz)
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#define NFS3_linkargs_sz (NFS3_fh_sz+NFS3_diropargs_sz)
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2010-12-14 17:55:50 +03:00
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#define NFS3_readdirargs_sz (NFS3_fh_sz+NFS3_cookieverf_sz+3)
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#define NFS3_readdirplusargs_sz (NFS3_fh_sz+NFS3_cookieverf_sz+4)
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2005-04-17 02:20:36 +04:00
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#define NFS3_commitargs_sz (NFS3_fh_sz+3)
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2010-12-14 17:56:42 +03:00
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#define NFS3_getattrres_sz (1+NFS3_fattr_sz)
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#define NFS3_setattrres_sz (1+NFS3_wcc_data_sz)
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#define NFS3_removeres_sz (NFS3_setattrres_sz)
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2005-04-17 02:20:36 +04:00
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#define NFS3_lookupres_sz (1+NFS3_fh_sz+(2 * NFS3_post_op_attr_sz))
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#define NFS3_accessres_sz (1+NFS3_post_op_attr_sz+1)
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#define NFS3_readlinkres_sz (1+NFS3_post_op_attr_sz+1)
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#define NFS3_readres_sz (1+NFS3_post_op_attr_sz+3)
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#define NFS3_writeres_sz (1+NFS3_wcc_data_sz+4)
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#define NFS3_createres_sz (1+NFS3_fh_sz+NFS3_post_op_attr_sz+NFS3_wcc_data_sz)
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#define NFS3_renameres_sz (1+(2 * NFS3_wcc_data_sz))
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#define NFS3_linkres_sz (1+NFS3_post_op_attr_sz+NFS3_wcc_data_sz)
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#define NFS3_readdirres_sz (1+NFS3_post_op_attr_sz+2)
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#define NFS3_fsstatres_sz (1+NFS3_post_op_attr_sz+13)
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#define NFS3_fsinfores_sz (1+NFS3_post_op_attr_sz+12)
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#define NFS3_pathconfres_sz (1+NFS3_post_op_attr_sz+6)
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#define NFS3_commitres_sz (1+NFS3_wcc_data_sz+2)
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2005-06-22 21:16:27 +04:00
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#define ACL3_getaclargs_sz (NFS3_fh_sz+1)
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2009-03-11 03:33:18 +03:00
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#define ACL3_setaclargs_sz (NFS3_fh_sz+1+ \
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XDR_QUADLEN(NFS_ACL_INLINE_BUFSIZE))
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#define ACL3_getaclres_sz (1+NFS3_post_op_attr_sz+1+ \
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XDR_QUADLEN(NFS_ACL_INLINE_BUFSIZE))
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2005-06-22 21:16:27 +04:00
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#define ACL3_setaclres_sz (1+NFS3_post_op_attr_sz)
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2005-04-17 02:20:36 +04:00
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/*
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* Map file type to S_IFMT bits
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*/
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2009-03-11 21:10:26 +03:00
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static const umode_t nfs_type2fmt[] = {
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[NF3BAD] = 0,
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[NF3REG] = S_IFREG,
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[NF3DIR] = S_IFDIR,
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[NF3BLK] = S_IFBLK,
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[NF3CHR] = S_IFCHR,
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[NF3LNK] = S_IFLNK,
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[NF3SOCK] = S_IFSOCK,
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[NF3FIFO] = S_IFIFO,
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2005-04-17 02:20:36 +04:00
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};
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2010-12-14 17:55:50 +03:00
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/*
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* While encoding arguments, set up the reply buffer in advance to
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* receive reply data directly into the page cache.
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*/
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static void prepare_reply_buffer(struct rpc_rqst *req, struct page **pages,
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unsigned int base, unsigned int len,
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unsigned int bufsize)
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{
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struct rpc_auth *auth = req->rq_cred->cr_auth;
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unsigned int replen;
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replen = RPC_REPHDRSIZE + auth->au_rslack + bufsize;
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xdr_inline_pages(&req->rq_rcv_buf, replen << 2, pages, base, len);
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}
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2010-12-14 17:56:30 +03:00
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/*
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* Handle decode buffer overflows out-of-line.
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*/
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static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
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{
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dprintk("NFS: %s prematurely hit the end of our receive buffer. "
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"Remaining buffer length is %tu words.\n",
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func, xdr->end - xdr->p);
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}
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2010-12-14 17:55:50 +03:00
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2005-04-17 02:20:36 +04:00
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/*
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* Common NFS XDR functions as inlines
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*/
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2006-10-20 10:28:48 +04:00
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static inline __be32 *
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xdr_decode_fhandle(__be32 *p, struct nfs_fh *fh)
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2005-04-17 02:20:36 +04:00
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{
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if ((fh->size = ntohl(*p++)) <= NFS3_FHSIZE) {
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memcpy(fh->data, p, fh->size);
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return p + XDR_QUADLEN(fh->size);
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}
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return NULL;
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}
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2010-10-20 23:44:29 +04:00
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static inline __be32 *
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xdr_decode_fhandle_stream(struct xdr_stream *xdr, struct nfs_fh *fh)
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{
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__be32 *p;
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p = xdr_inline_decode(xdr, 4);
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if (unlikely(!p))
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goto out_overflow;
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fh->size = ntohl(*p++);
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if (fh->size <= NFS3_FHSIZE) {
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p = xdr_inline_decode(xdr, fh->size);
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if (unlikely(!p))
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goto out_overflow;
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memcpy(fh->data, p, fh->size);
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return p + XDR_QUADLEN(fh->size);
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}
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return NULL;
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out_overflow:
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print_overflow_msg(__func__, xdr);
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return ERR_PTR(-EIO);
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}
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2005-04-17 02:20:36 +04:00
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/*
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* Encode/decode time.
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*/
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2006-10-20 10:28:48 +04:00
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static inline __be32 *
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xdr_decode_time3(__be32 *p, struct timespec *timep)
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2005-04-17 02:20:36 +04:00
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{
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timep->tv_sec = ntohl(*p++);
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timep->tv_nsec = ntohl(*p++);
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return p;
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}
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2006-10-20 10:28:48 +04:00
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static __be32 *
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xdr_decode_fattr(__be32 *p, struct nfs_fattr *fattr)
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2005-04-17 02:20:36 +04:00
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{
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unsigned int type, major, minor;
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2009-03-11 21:10:26 +03:00
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umode_t fmode;
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2005-04-17 02:20:36 +04:00
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type = ntohl(*p++);
|
2009-03-11 21:10:26 +03:00
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if (type > NF3FIFO)
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type = NF3NON;
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fmode = nfs_type2fmt[type];
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2005-04-17 02:20:36 +04:00
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fattr->mode = (ntohl(*p++) & ~S_IFMT) | fmode;
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fattr->nlink = ntohl(*p++);
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fattr->uid = ntohl(*p++);
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fattr->gid = ntohl(*p++);
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p = xdr_decode_hyper(p, &fattr->size);
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p = xdr_decode_hyper(p, &fattr->du.nfs3.used);
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/* Turn remote device info into Linux-specific dev_t */
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major = ntohl(*p++);
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minor = ntohl(*p++);
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fattr->rdev = MKDEV(major, minor);
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if (MAJOR(fattr->rdev) != major || MINOR(fattr->rdev) != minor)
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fattr->rdev = 0;
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2006-06-09 17:34:19 +04:00
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p = xdr_decode_hyper(p, &fattr->fsid.major);
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fattr->fsid.minor = 0;
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2005-04-17 02:20:36 +04:00
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p = xdr_decode_hyper(p, &fattr->fileid);
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p = xdr_decode_time3(p, &fattr->atime);
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p = xdr_decode_time3(p, &fattr->mtime);
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p = xdr_decode_time3(p, &fattr->ctime);
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/* Update the mode bits */
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2009-03-11 21:10:24 +03:00
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fattr->valid |= NFS_ATTR_FATTR_V3;
|
2005-04-17 02:20:36 +04:00
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return p;
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}
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|
2006-10-20 10:28:48 +04:00
|
|
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static inline __be32 *
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xdr_decode_wcc_attr(__be32 *p, struct nfs_fattr *fattr)
|
2005-04-17 02:20:36 +04:00
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{
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p = xdr_decode_hyper(p, &fattr->pre_size);
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p = xdr_decode_time3(p, &fattr->pre_mtime);
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p = xdr_decode_time3(p, &fattr->pre_ctime);
|
2009-03-11 21:10:24 +03:00
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fattr->valid |= NFS_ATTR_FATTR_PRESIZE
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| NFS_ATTR_FATTR_PREMTIME
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| NFS_ATTR_FATTR_PRECTIME;
|
2005-04-17 02:20:36 +04:00
|
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return p;
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}
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|
|
|
2006-10-20 10:28:48 +04:00
|
|
|
static inline __be32 *
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xdr_decode_post_op_attr(__be32 *p, struct nfs_fattr *fattr)
|
2005-04-17 02:20:36 +04:00
|
|
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{
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if (*p++)
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p = xdr_decode_fattr(p, fattr);
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|
return p;
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|
|
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}
|
|
|
|
|
2010-10-20 23:44:29 +04:00
|
|
|
static inline __be32 *
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xdr_decode_post_op_attr_stream(struct xdr_stream *xdr, struct nfs_fattr *fattr)
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|
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{
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__be32 *p;
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|
|
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p = xdr_inline_decode(xdr, 4);
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if (unlikely(!p))
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goto out_overflow;
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if (ntohl(*p++)) {
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p = xdr_inline_decode(xdr, 84);
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if (unlikely(!p))
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goto out_overflow;
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|
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p = xdr_decode_fattr(p, fattr);
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|
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}
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|
return p;
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|
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out_overflow:
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|
|
print_overflow_msg(__func__, xdr);
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|
|
return ERR_PTR(-EIO);
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|
|
}
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|
|
|
|
2006-10-20 10:28:48 +04:00
|
|
|
static inline __be32 *
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|
|
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xdr_decode_pre_op_attr(__be32 *p, struct nfs_fattr *fattr)
|
2005-04-17 02:20:36 +04:00
|
|
|
{
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|
|
if (*p++)
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|
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return xdr_decode_wcc_attr(p, fattr);
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|
|
return p;
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|
|
}
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|
|
|
|
|
|
|
|
2006-10-20 10:28:48 +04:00
|
|
|
static inline __be32 *
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|
|
|
xdr_decode_wcc_data(__be32 *p, struct nfs_fattr *fattr)
|
2005-04-17 02:20:36 +04:00
|
|
|
{
|
|
|
|
p = xdr_decode_pre_op_attr(p, fattr);
|
|
|
|
return xdr_decode_post_op_attr(p, fattr);
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|
|
|
}
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|
|
|
|
2010-12-14 17:55:50 +03:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Encode/decode NFSv3 basic data types
|
|
|
|
*
|
|
|
|
* Basic NFSv3 data types are defined in section 2.5 of RFC 1813:
|
|
|
|
* "NFS Version 3 Protocol Specification".
|
|
|
|
*
|
|
|
|
* Not all basic data types have their own encoding and decoding
|
|
|
|
* functions. For run-time efficiency, some data types are encoded
|
|
|
|
* or decoded inline.
|
|
|
|
*/
|
|
|
|
|
|
|
|
static void encode_uint32(struct xdr_stream *xdr, u32 value)
|
|
|
|
{
|
|
|
|
__be32 *p = xdr_reserve_space(xdr, 4);
|
|
|
|
*p = cpu_to_be32(value);
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:56:30 +03:00
|
|
|
static int decode_uint32(struct xdr_stream *xdr, u32 *value)
|
|
|
|
{
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
p = xdr_inline_decode(xdr, 4);
|
|
|
|
if (unlikely(p == NULL))
|
|
|
|
goto out_overflow;
|
|
|
|
*value = be32_to_cpup(p);
|
|
|
|
return 0;
|
|
|
|
out_overflow:
|
|
|
|
print_overflow_msg(__func__, xdr);
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int decode_uint64(struct xdr_stream *xdr, u64 *value)
|
|
|
|
{
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
p = xdr_inline_decode(xdr, 8);
|
|
|
|
if (unlikely(p == NULL))
|
|
|
|
goto out_overflow;
|
|
|
|
xdr_decode_hyper(p, value);
|
|
|
|
return 0;
|
|
|
|
out_overflow:
|
|
|
|
print_overflow_msg(__func__, xdr);
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* fileid3
|
|
|
|
*
|
|
|
|
* typedef uint64 fileid3;
|
|
|
|
*/
|
|
|
|
static int decode_fileid3(struct xdr_stream *xdr, u64 *fileid)
|
|
|
|
{
|
|
|
|
return decode_uint64(xdr, fileid);
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:55:50 +03:00
|
|
|
/*
|
|
|
|
* filename3
|
|
|
|
*
|
|
|
|
* typedef string filename3<>;
|
|
|
|
*/
|
|
|
|
static void encode_filename3(struct xdr_stream *xdr,
|
|
|
|
const char *name, u32 length)
|
|
|
|
{
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
BUG_ON(length > NFS3_MAXNAMLEN);
|
|
|
|
p = xdr_reserve_space(xdr, 4 + length);
|
|
|
|
xdr_encode_opaque(p, name, length);
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:56:30 +03:00
|
|
|
static int decode_inline_filename3(struct xdr_stream *xdr,
|
|
|
|
const char **name, u32 *length)
|
|
|
|
{
|
|
|
|
__be32 *p;
|
|
|
|
u32 count;
|
|
|
|
|
|
|
|
p = xdr_inline_decode(xdr, 4);
|
|
|
|
if (unlikely(p == NULL))
|
|
|
|
goto out_overflow;
|
|
|
|
count = be32_to_cpup(p);
|
|
|
|
if (count > NFS3_MAXNAMLEN)
|
|
|
|
goto out_nametoolong;
|
|
|
|
p = xdr_inline_decode(xdr, count);
|
|
|
|
if (unlikely(p == NULL))
|
|
|
|
goto out_overflow;
|
|
|
|
*name = (const char *)p;
|
|
|
|
*length = count;
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
out_nametoolong:
|
|
|
|
dprintk("NFS: returned filename too long: %u\n", count);
|
|
|
|
return -ENAMETOOLONG;
|
|
|
|
out_overflow:
|
|
|
|
print_overflow_msg(__func__, xdr);
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:55:50 +03:00
|
|
|
/*
|
|
|
|
* nfspath3
|
|
|
|
*
|
|
|
|
* typedef string nfspath3<>;
|
|
|
|
*/
|
|
|
|
static void encode_nfspath3(struct xdr_stream *xdr, struct page **pages,
|
|
|
|
const u32 length)
|
|
|
|
{
|
|
|
|
BUG_ON(length > NFS3_MAXPATHLEN);
|
|
|
|
encode_uint32(xdr, length);
|
|
|
|
xdr_write_pages(xdr, pages, 0, length);
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:56:30 +03:00
|
|
|
static int decode_nfspath3(struct xdr_stream *xdr)
|
|
|
|
{
|
|
|
|
u32 recvd, count;
|
|
|
|
size_t hdrlen;
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
p = xdr_inline_decode(xdr, 4);
|
|
|
|
if (unlikely(p == NULL))
|
|
|
|
goto out_overflow;
|
|
|
|
count = be32_to_cpup(p);
|
|
|
|
if (unlikely(count >= xdr->buf->page_len || count > NFS3_MAXPATHLEN))
|
|
|
|
goto out_nametoolong;
|
|
|
|
hdrlen = (u8 *)xdr->p - (u8 *)xdr->iov->iov_base;
|
|
|
|
recvd = xdr->buf->len - hdrlen;
|
|
|
|
if (unlikely(count > recvd))
|
|
|
|
goto out_cheating;
|
|
|
|
|
|
|
|
xdr_read_pages(xdr, count);
|
|
|
|
xdr_terminate_string(xdr->buf, count);
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
out_nametoolong:
|
|
|
|
dprintk("NFS: returned pathname too long: %u\n", count);
|
|
|
|
return -ENAMETOOLONG;
|
|
|
|
out_cheating:
|
|
|
|
dprintk("NFS: server cheating in pathname result: "
|
|
|
|
"count %u > recvd %u\n", count, recvd);
|
|
|
|
return -EIO;
|
|
|
|
out_overflow:
|
|
|
|
print_overflow_msg(__func__, xdr);
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:55:50 +03:00
|
|
|
/*
|
|
|
|
* cookie3
|
|
|
|
*
|
|
|
|
* typedef uint64 cookie3
|
|
|
|
*/
|
|
|
|
static __be32 *xdr_encode_cookie3(__be32 *p, u64 cookie)
|
|
|
|
{
|
|
|
|
return xdr_encode_hyper(p, cookie);
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:56:30 +03:00
|
|
|
static int decode_cookie3(struct xdr_stream *xdr, u64 *cookie)
|
|
|
|
{
|
|
|
|
return decode_uint64(xdr, cookie);
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:55:50 +03:00
|
|
|
/*
|
|
|
|
* cookieverf3
|
|
|
|
*
|
|
|
|
* typedef opaque cookieverf3[NFS3_COOKIEVERFSIZE];
|
|
|
|
*/
|
|
|
|
static __be32 *xdr_encode_cookieverf3(__be32 *p, const __be32 *verifier)
|
|
|
|
{
|
|
|
|
memcpy(p, verifier, NFS3_COOKIEVERFSIZE);
|
|
|
|
return p + XDR_QUADLEN(NFS3_COOKIEVERFSIZE);
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:56:30 +03:00
|
|
|
static int decode_cookieverf3(struct xdr_stream *xdr, __be32 *verifier)
|
|
|
|
{
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
p = xdr_inline_decode(xdr, NFS3_COOKIEVERFSIZE);
|
|
|
|
if (unlikely(p == NULL))
|
|
|
|
goto out_overflow;
|
|
|
|
memcpy(verifier, p, NFS3_COOKIEVERFSIZE);
|
|
|
|
return 0;
|
|
|
|
out_overflow:
|
|
|
|
print_overflow_msg(__func__, xdr);
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:55:50 +03:00
|
|
|
/*
|
|
|
|
* createverf3
|
|
|
|
*
|
|
|
|
* typedef opaque createverf3[NFS3_CREATEVERFSIZE];
|
|
|
|
*/
|
|
|
|
static void encode_createverf3(struct xdr_stream *xdr, const __be32 *verifier)
|
|
|
|
{
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
p = xdr_reserve_space(xdr, NFS3_CREATEVERFSIZE);
|
|
|
|
memcpy(p, verifier, NFS3_CREATEVERFSIZE);
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:56:30 +03:00
|
|
|
static int decode_writeverf3(struct xdr_stream *xdr, __be32 *verifier)
|
|
|
|
{
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
p = xdr_inline_decode(xdr, NFS3_WRITEVERFSIZE);
|
|
|
|
if (unlikely(p == NULL))
|
|
|
|
goto out_overflow;
|
|
|
|
memcpy(verifier, p, NFS3_WRITEVERFSIZE);
|
|
|
|
return 0;
|
|
|
|
out_overflow:
|
|
|
|
print_overflow_msg(__func__, xdr);
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* size3
|
|
|
|
*
|
|
|
|
* typedef uint64 size3;
|
|
|
|
*/
|
|
|
|
static __be32 *xdr_decode_size3(__be32 *p, u64 *size)
|
|
|
|
{
|
|
|
|
return xdr_decode_hyper(p, size);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* nfsstat3
|
|
|
|
*
|
|
|
|
* enum nfsstat3 {
|
|
|
|
* NFS3_OK = 0,
|
|
|
|
* ...
|
|
|
|
* }
|
|
|
|
*/
|
|
|
|
#define NFS3_OK NFS_OK
|
|
|
|
|
|
|
|
static int decode_nfsstat3(struct xdr_stream *xdr, enum nfs_stat *status)
|
|
|
|
{
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
p = xdr_inline_decode(xdr, 4);
|
|
|
|
if (unlikely(p == NULL))
|
|
|
|
goto out_overflow;
|
|
|
|
*status = be32_to_cpup(p);
|
|
|
|
return 0;
|
|
|
|
out_overflow:
|
|
|
|
print_overflow_msg(__func__, xdr);
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:55:50 +03:00
|
|
|
/*
|
|
|
|
* ftype3
|
|
|
|
*
|
|
|
|
* enum ftype3 {
|
|
|
|
* NF3REG = 1,
|
|
|
|
* NF3DIR = 2,
|
|
|
|
* NF3BLK = 3,
|
|
|
|
* NF3CHR = 4,
|
|
|
|
* NF3LNK = 5,
|
|
|
|
* NF3SOCK = 6,
|
|
|
|
* NF3FIFO = 7
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static void encode_ftype3(struct xdr_stream *xdr, const u32 type)
|
|
|
|
{
|
|
|
|
BUG_ON(type > NF3FIFO);
|
|
|
|
encode_uint32(xdr, type);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* specdata3
|
|
|
|
*
|
|
|
|
* struct specdata3 {
|
|
|
|
* uint32 specdata1;
|
|
|
|
* uint32 specdata2;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static void encode_specdata3(struct xdr_stream *xdr, const dev_t rdev)
|
|
|
|
{
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
p = xdr_reserve_space(xdr, 8);
|
|
|
|
*p++ = cpu_to_be32(MAJOR(rdev));
|
|
|
|
*p = cpu_to_be32(MINOR(rdev));
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* nfs_fh3
|
|
|
|
*
|
|
|
|
* struct nfs_fh3 {
|
|
|
|
* opaque data<NFS3_FHSIZE>;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static void encode_nfs_fh3(struct xdr_stream *xdr, const struct nfs_fh *fh)
|
|
|
|
{
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
BUG_ON(fh->size > NFS3_FHSIZE);
|
|
|
|
p = xdr_reserve_space(xdr, 4 + fh->size);
|
|
|
|
xdr_encode_opaque(p, fh->data, fh->size);
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:56:30 +03:00
|
|
|
static int decode_nfs_fh3(struct xdr_stream *xdr, struct nfs_fh *fh)
|
|
|
|
{
|
|
|
|
u32 length;
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
p = xdr_inline_decode(xdr, 4);
|
|
|
|
if (unlikely(p == NULL))
|
|
|
|
goto out_overflow;
|
|
|
|
length = be32_to_cpup(p++);
|
|
|
|
if (unlikely(length > NFS3_FHSIZE))
|
|
|
|
goto out_toobig;
|
|
|
|
p = xdr_inline_decode(xdr, length);
|
|
|
|
if (unlikely(p == NULL))
|
|
|
|
goto out_overflow;
|
|
|
|
fh->size = length;
|
|
|
|
memcpy(fh->data, p, length);
|
|
|
|
return 0;
|
|
|
|
out_toobig:
|
|
|
|
dprintk("NFS: file handle size (%u) too big\n", length);
|
|
|
|
return -E2BIG;
|
|
|
|
out_overflow:
|
|
|
|
print_overflow_msg(__func__, xdr);
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void zero_nfs_fh3(struct nfs_fh *fh)
|
|
|
|
{
|
|
|
|
memset(fh, 0, sizeof(*fh));
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:56:20 +03:00
|
|
|
/*
|
|
|
|
* nfstime3
|
|
|
|
*
|
|
|
|
* struct nfstime3 {
|
|
|
|
* uint32 seconds;
|
|
|
|
* uint32 nseconds;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static __be32 *xdr_encode_nfstime3(__be32 *p, const struct timespec *timep)
|
|
|
|
{
|
|
|
|
*p++ = cpu_to_be32(timep->tv_sec);
|
|
|
|
*p++ = cpu_to_be32(timep->tv_nsec);
|
|
|
|
return p;
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:55:50 +03:00
|
|
|
/*
|
|
|
|
* sattr3
|
|
|
|
*
|
|
|
|
* enum time_how {
|
|
|
|
* DONT_CHANGE = 0,
|
|
|
|
* SET_TO_SERVER_TIME = 1,
|
|
|
|
* SET_TO_CLIENT_TIME = 2
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* union set_mode3 switch (bool set_it) {
|
|
|
|
* case TRUE:
|
|
|
|
* mode3 mode;
|
|
|
|
* default:
|
|
|
|
* void;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* union set_uid3 switch (bool set_it) {
|
|
|
|
* case TRUE:
|
|
|
|
* uid3 uid;
|
|
|
|
* default:
|
|
|
|
* void;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* union set_gid3 switch (bool set_it) {
|
|
|
|
* case TRUE:
|
|
|
|
* gid3 gid;
|
|
|
|
* default:
|
|
|
|
* void;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* union set_size3 switch (bool set_it) {
|
|
|
|
* case TRUE:
|
|
|
|
* size3 size;
|
|
|
|
* default:
|
|
|
|
* void;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* union set_atime switch (time_how set_it) {
|
|
|
|
* case SET_TO_CLIENT_TIME:
|
|
|
|
* nfstime3 atime;
|
|
|
|
* default:
|
|
|
|
* void;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* union set_mtime switch (time_how set_it) {
|
|
|
|
* case SET_TO_CLIENT_TIME:
|
|
|
|
* nfstime3 mtime;
|
|
|
|
* default:
|
|
|
|
* void;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* struct sattr3 {
|
|
|
|
* set_mode3 mode;
|
|
|
|
* set_uid3 uid;
|
|
|
|
* set_gid3 gid;
|
|
|
|
* set_size3 size;
|
|
|
|
* set_atime atime;
|
|
|
|
* set_mtime mtime;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static void encode_sattr3(struct xdr_stream *xdr, const struct iattr *attr)
|
|
|
|
{
|
|
|
|
u32 nbytes;
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* In order to make only a single xdr_reserve_space() call,
|
|
|
|
* pre-compute the total number of bytes to be reserved.
|
|
|
|
* Six boolean values, one for each set_foo field, are always
|
|
|
|
* present in the encoded result, so start there.
|
|
|
|
*/
|
|
|
|
nbytes = 6 * 4;
|
|
|
|
if (attr->ia_valid & ATTR_MODE)
|
|
|
|
nbytes += 4;
|
|
|
|
if (attr->ia_valid & ATTR_UID)
|
|
|
|
nbytes += 4;
|
|
|
|
if (attr->ia_valid & ATTR_GID)
|
|
|
|
nbytes += 4;
|
|
|
|
if (attr->ia_valid & ATTR_SIZE)
|
|
|
|
nbytes += 8;
|
|
|
|
if (attr->ia_valid & ATTR_ATIME_SET)
|
|
|
|
nbytes += 8;
|
|
|
|
if (attr->ia_valid & ATTR_MTIME_SET)
|
|
|
|
nbytes += 8;
|
|
|
|
p = xdr_reserve_space(xdr, nbytes);
|
|
|
|
|
2010-12-14 17:56:20 +03:00
|
|
|
if (attr->ia_valid & ATTR_MODE) {
|
|
|
|
*p++ = xdr_one;
|
|
|
|
*p++ = cpu_to_be32(attr->ia_mode & S_IALLUGO);
|
|
|
|
} else
|
|
|
|
*p++ = xdr_zero;
|
|
|
|
|
|
|
|
if (attr->ia_valid & ATTR_UID) {
|
|
|
|
*p++ = xdr_one;
|
|
|
|
*p++ = cpu_to_be32(attr->ia_uid);
|
|
|
|
} else
|
|
|
|
*p++ = xdr_zero;
|
|
|
|
|
|
|
|
if (attr->ia_valid & ATTR_GID) {
|
|
|
|
*p++ = xdr_one;
|
|
|
|
*p++ = cpu_to_be32(attr->ia_gid);
|
|
|
|
} else
|
|
|
|
*p++ = xdr_zero;
|
|
|
|
|
|
|
|
if (attr->ia_valid & ATTR_SIZE) {
|
|
|
|
*p++ = xdr_one;
|
|
|
|
p = xdr_encode_hyper(p, (u64)attr->ia_size);
|
|
|
|
} else
|
|
|
|
*p++ = xdr_zero;
|
|
|
|
|
|
|
|
if (attr->ia_valid & ATTR_ATIME_SET) {
|
|
|
|
*p++ = xdr_two;
|
|
|
|
p = xdr_encode_nfstime3(p, &attr->ia_atime);
|
|
|
|
} else if (attr->ia_valid & ATTR_ATIME) {
|
|
|
|
*p++ = xdr_one;
|
|
|
|
} else
|
|
|
|
*p++ = xdr_zero;
|
|
|
|
|
|
|
|
if (attr->ia_valid & ATTR_MTIME_SET) {
|
|
|
|
*p++ = xdr_two;
|
|
|
|
xdr_encode_nfstime3(p, &attr->ia_mtime);
|
|
|
|
} else if (attr->ia_valid & ATTR_MTIME) {
|
|
|
|
*p = xdr_one;
|
|
|
|
} else
|
|
|
|
*p = xdr_zero;
|
2010-12-14 17:55:50 +03:00
|
|
|
}
|
|
|
|
|
2010-12-14 17:56:30 +03:00
|
|
|
/*
|
|
|
|
* fattr3
|
|
|
|
*
|
|
|
|
* struct fattr3 {
|
|
|
|
* ftype3 type;
|
|
|
|
* mode3 mode;
|
|
|
|
* uint32 nlink;
|
|
|
|
* uid3 uid;
|
|
|
|
* gid3 gid;
|
|
|
|
* size3 size;
|
|
|
|
* size3 used;
|
|
|
|
* specdata3 rdev;
|
|
|
|
* uint64 fsid;
|
|
|
|
* fileid3 fileid;
|
|
|
|
* nfstime3 atime;
|
|
|
|
* nfstime3 mtime;
|
|
|
|
* nfstime3 ctime;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int decode_fattr3(struct xdr_stream *xdr, struct nfs_fattr *fattr)
|
|
|
|
{
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
p = xdr_inline_decode(xdr, NFS3_fattr_sz << 2);
|
|
|
|
if (unlikely(p == NULL))
|
|
|
|
goto out_overflow;
|
|
|
|
xdr_decode_fattr(p, fattr);
|
|
|
|
return 0;
|
|
|
|
out_overflow:
|
|
|
|
print_overflow_msg(__func__, xdr);
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* post_op_attr
|
|
|
|
*
|
|
|
|
* union post_op_attr switch (bool attributes_follow) {
|
|
|
|
* case TRUE:
|
|
|
|
* fattr3 attributes;
|
|
|
|
* case FALSE:
|
|
|
|
* void;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int decode_post_op_attr(struct xdr_stream *xdr, struct nfs_fattr *fattr)
|
|
|
|
{
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
p = xdr_inline_decode(xdr, 4);
|
|
|
|
if (unlikely(p == NULL))
|
|
|
|
goto out_overflow;
|
|
|
|
if (*p != xdr_zero)
|
|
|
|
return decode_fattr3(xdr, fattr);
|
|
|
|
return 0;
|
|
|
|
out_overflow:
|
|
|
|
print_overflow_msg(__func__, xdr);
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* wcc_attr
|
|
|
|
* struct wcc_attr {
|
|
|
|
* size3 size;
|
|
|
|
* nfstime3 mtime;
|
|
|
|
* nfstime3 ctime;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int decode_wcc_attr(struct xdr_stream *xdr, struct nfs_fattr *fattr)
|
|
|
|
{
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
p = xdr_inline_decode(xdr, NFS3_wcc_attr_sz << 2);
|
|
|
|
if (unlikely(p == NULL))
|
|
|
|
goto out_overflow;
|
|
|
|
xdr_decode_wcc_attr(p, fattr);
|
|
|
|
return 0;
|
|
|
|
out_overflow:
|
|
|
|
print_overflow_msg(__func__, xdr);
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* pre_op_attr
|
|
|
|
* union pre_op_attr switch (bool attributes_follow) {
|
|
|
|
* case TRUE:
|
|
|
|
* wcc_attr attributes;
|
|
|
|
* case FALSE:
|
|
|
|
* void;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* wcc_data
|
|
|
|
*
|
|
|
|
* struct wcc_data {
|
|
|
|
* pre_op_attr before;
|
|
|
|
* post_op_attr after;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int decode_pre_op_attr(struct xdr_stream *xdr, struct nfs_fattr *fattr)
|
|
|
|
{
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
p = xdr_inline_decode(xdr, 4);
|
|
|
|
if (unlikely(p == NULL))
|
|
|
|
goto out_overflow;
|
|
|
|
if (*p != xdr_zero)
|
|
|
|
return decode_wcc_attr(xdr, fattr);
|
|
|
|
return 0;
|
|
|
|
out_overflow:
|
|
|
|
print_overflow_msg(__func__, xdr);
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int decode_wcc_data(struct xdr_stream *xdr, struct nfs_fattr *fattr)
|
|
|
|
{
|
|
|
|
int error;
|
|
|
|
|
|
|
|
error = decode_pre_op_attr(xdr, fattr);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
error = decode_post_op_attr(xdr, fattr);
|
|
|
|
out:
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* post_op_fh3
|
|
|
|
*
|
|
|
|
* union post_op_fh3 switch (bool handle_follows) {
|
|
|
|
* case TRUE:
|
|
|
|
* nfs_fh3 handle;
|
|
|
|
* case FALSE:
|
|
|
|
* void;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int decode_post_op_fh3(struct xdr_stream *xdr, struct nfs_fh *fh)
|
|
|
|
{
|
|
|
|
__be32 *p = xdr_inline_decode(xdr, 4);
|
|
|
|
if (unlikely(p == NULL))
|
|
|
|
goto out_overflow;
|
|
|
|
if (*p != xdr_zero)
|
|
|
|
return decode_nfs_fh3(xdr, fh);
|
|
|
|
zero_nfs_fh3(fh);
|
|
|
|
return 0;
|
|
|
|
out_overflow:
|
|
|
|
print_overflow_msg(__func__, xdr);
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:55:50 +03:00
|
|
|
/*
|
|
|
|
* diropargs3
|
|
|
|
*
|
|
|
|
* struct diropargs3 {
|
|
|
|
* nfs_fh3 dir;
|
|
|
|
* filename3 name;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static void encode_diropargs3(struct xdr_stream *xdr, const struct nfs_fh *fh,
|
|
|
|
const char *name, u32 length)
|
|
|
|
{
|
|
|
|
encode_nfs_fh3(xdr, fh);
|
|
|
|
encode_filename3(xdr, name, length);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2005-04-17 02:20:36 +04:00
|
|
|
/*
|
2010-12-14 17:56:10 +03:00
|
|
|
* NFSv3 XDR encode functions
|
|
|
|
*
|
|
|
|
* NFSv3 argument types are defined in section 3.3 of RFC 1813:
|
|
|
|
* "NFS Version 3 Protocol Specification".
|
2005-04-17 02:20:36 +04:00
|
|
|
*/
|
|
|
|
|
2010-12-14 17:55:50 +03:00
|
|
|
/*
|
|
|
|
* 3.3.1 GETATTR3args
|
|
|
|
*
|
|
|
|
* struct GETATTR3args {
|
|
|
|
* nfs_fh3 object;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int nfs3_xdr_enc_getattr3args(struct rpc_rqst *req, __be32 *p,
|
|
|
|
const struct nfs_fh *fh)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
|
|
|
|
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
|
|
|
|
encode_nfs_fh3(&xdr, fh);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 3.3.2 SETATTR3args
|
|
|
|
*
|
|
|
|
* union sattrguard3 switch (bool check) {
|
|
|
|
* case TRUE:
|
|
|
|
* nfstime3 obj_ctime;
|
|
|
|
* case FALSE:
|
|
|
|
* void;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* struct SETATTR3args {
|
|
|
|
* nfs_fh3 object;
|
|
|
|
* sattr3 new_attributes;
|
|
|
|
* sattrguard3 guard;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static void encode_sattrguard3(struct xdr_stream *xdr,
|
|
|
|
const struct nfs3_sattrargs *args)
|
|
|
|
{
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
if (args->guard) {
|
|
|
|
p = xdr_reserve_space(xdr, 4 + 8);
|
|
|
|
*p++ = xdr_one;
|
2010-12-14 17:56:20 +03:00
|
|
|
xdr_encode_nfstime3(p, &args->guardtime);
|
2010-12-14 17:55:50 +03:00
|
|
|
} else {
|
|
|
|
p = xdr_reserve_space(xdr, 4);
|
|
|
|
*p = xdr_zero;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static int nfs3_xdr_enc_setattr3args(struct rpc_rqst *req, __be32 *p,
|
|
|
|
const struct nfs3_sattrargs *args)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
|
|
|
|
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
|
|
|
|
encode_nfs_fh3(&xdr, args->fh);
|
|
|
|
encode_sattr3(&xdr, args->sattr);
|
|
|
|
encode_sattrguard3(&xdr, args);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 3.3.3 LOOKUP3args
|
|
|
|
*
|
|
|
|
* struct LOOKUP3args {
|
|
|
|
* diropargs3 what;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int nfs3_xdr_enc_lookup3args(struct rpc_rqst *req, __be32 *p,
|
|
|
|
const struct nfs3_diropargs *args)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
|
|
|
|
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
|
|
|
|
encode_diropargs3(&xdr, args->fh, args->name, args->len);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 3.3.4 ACCESS3args
|
|
|
|
*
|
|
|
|
* struct ACCESS3args {
|
|
|
|
* nfs_fh3 object;
|
|
|
|
* uint32 access;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static void encode_access3args(struct xdr_stream *xdr,
|
|
|
|
const struct nfs3_accessargs *args)
|
|
|
|
{
|
|
|
|
encode_nfs_fh3(xdr, args->fh);
|
|
|
|
encode_uint32(xdr, args->access);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int nfs3_xdr_enc_access3args(struct rpc_rqst *req, __be32 *p,
|
|
|
|
const struct nfs3_accessargs *args)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
|
|
|
|
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
|
|
|
|
encode_access3args(&xdr, args);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 3.3.5 READLINK3args
|
|
|
|
*
|
|
|
|
* struct READLINK3args {
|
|
|
|
* nfs_fh3 symlink;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int nfs3_xdr_enc_readlink3args(struct rpc_rqst *req, __be32 *p,
|
|
|
|
const struct nfs3_readlinkargs *args)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
|
|
|
|
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
|
|
|
|
encode_nfs_fh3(&xdr, args->fh);
|
|
|
|
prepare_reply_buffer(req, args->pages, args->pgbase,
|
|
|
|
args->pglen, NFS3_readlinkres_sz);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 3.3.6 READ3args
|
|
|
|
*
|
|
|
|
* struct READ3args {
|
|
|
|
* nfs_fh3 file;
|
|
|
|
* offset3 offset;
|
|
|
|
* count3 count;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static void encode_read3args(struct xdr_stream *xdr,
|
|
|
|
const struct nfs_readargs *args)
|
|
|
|
{
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
encode_nfs_fh3(xdr, args->fh);
|
|
|
|
|
|
|
|
p = xdr_reserve_space(xdr, 8 + 4);
|
|
|
|
p = xdr_encode_hyper(p, args->offset);
|
|
|
|
*p = cpu_to_be32(args->count);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int nfs3_xdr_enc_read3args(struct rpc_rqst *req, __be32 *p,
|
|
|
|
const struct nfs_readargs *args)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
|
|
|
|
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
|
|
|
|
encode_read3args(&xdr, args);
|
|
|
|
prepare_reply_buffer(req, args->pages, args->pgbase,
|
|
|
|
args->count, NFS3_readres_sz);
|
|
|
|
req->rq_rcv_buf.flags |= XDRBUF_READ;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 3.3.7 WRITE3args
|
|
|
|
*
|
|
|
|
* enum stable_how {
|
|
|
|
* UNSTABLE = 0,
|
|
|
|
* DATA_SYNC = 1,
|
|
|
|
* FILE_SYNC = 2
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* struct WRITE3args {
|
|
|
|
* nfs_fh3 file;
|
|
|
|
* offset3 offset;
|
|
|
|
* count3 count;
|
|
|
|
* stable_how stable;
|
|
|
|
* opaque data<>;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static void encode_write3args(struct xdr_stream *xdr,
|
|
|
|
const struct nfs_writeargs *args)
|
|
|
|
{
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
encode_nfs_fh3(xdr, args->fh);
|
|
|
|
|
|
|
|
p = xdr_reserve_space(xdr, 8 + 4 + 4 + 4);
|
|
|
|
p = xdr_encode_hyper(p, args->offset);
|
|
|
|
*p++ = cpu_to_be32(args->count);
|
|
|
|
|
|
|
|
BUG_ON(args->stable > NFS_FILE_SYNC);
|
|
|
|
*p++ = cpu_to_be32(args->stable);
|
|
|
|
|
|
|
|
*p = cpu_to_be32(args->count);
|
|
|
|
xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int nfs3_xdr_enc_write3args(struct rpc_rqst *req, __be32 *p,
|
|
|
|
const struct nfs_writeargs *args)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
|
|
|
|
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
|
|
|
|
encode_write3args(&xdr, args);
|
|
|
|
xdr.buf->flags |= XDRBUF_WRITE;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 3.3.8 CREATE3args
|
|
|
|
*
|
|
|
|
* enum createmode3 {
|
|
|
|
* UNCHECKED = 0,
|
|
|
|
* GUARDED = 1,
|
|
|
|
* EXCLUSIVE = 2
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* union createhow3 switch (createmode3 mode) {
|
|
|
|
* case UNCHECKED:
|
|
|
|
* case GUARDED:
|
|
|
|
* sattr3 obj_attributes;
|
|
|
|
* case EXCLUSIVE:
|
|
|
|
* createverf3 verf;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* struct CREATE3args {
|
|
|
|
* diropargs3 where;
|
|
|
|
* createhow3 how;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static void encode_createhow3(struct xdr_stream *xdr,
|
|
|
|
const struct nfs3_createargs *args)
|
|
|
|
{
|
|
|
|
encode_uint32(xdr, args->createmode);
|
|
|
|
switch (args->createmode) {
|
|
|
|
case NFS3_CREATE_UNCHECKED:
|
|
|
|
case NFS3_CREATE_GUARDED:
|
|
|
|
encode_sattr3(xdr, args->sattr);
|
|
|
|
break;
|
|
|
|
case NFS3_CREATE_EXCLUSIVE:
|
|
|
|
encode_createverf3(xdr, args->verifier);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
BUG();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static int nfs3_xdr_enc_create3args(struct rpc_rqst *req, __be32 *p,
|
|
|
|
const struct nfs3_createargs *args)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
|
|
|
|
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
|
|
|
|
encode_diropargs3(&xdr, args->fh, args->name, args->len);
|
|
|
|
encode_createhow3(&xdr, args);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 3.3.9 MKDIR3args
|
|
|
|
*
|
|
|
|
* struct MKDIR3args {
|
|
|
|
* diropargs3 where;
|
|
|
|
* sattr3 attributes;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int nfs3_xdr_enc_mkdir3args(struct rpc_rqst *req, __be32 *p,
|
|
|
|
const struct nfs3_mkdirargs *args)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
|
|
|
|
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
|
|
|
|
encode_diropargs3(&xdr, args->fh, args->name, args->len);
|
|
|
|
encode_sattr3(&xdr, args->sattr);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 3.3.10 SYMLINK3args
|
|
|
|
*
|
|
|
|
* struct symlinkdata3 {
|
|
|
|
* sattr3 symlink_attributes;
|
|
|
|
* nfspath3 symlink_data;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* struct SYMLINK3args {
|
|
|
|
* diropargs3 where;
|
|
|
|
* symlinkdata3 symlink;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static void encode_symlinkdata3(struct xdr_stream *xdr,
|
|
|
|
const struct nfs3_symlinkargs *args)
|
|
|
|
{
|
|
|
|
encode_sattr3(xdr, args->sattr);
|
|
|
|
encode_nfspath3(xdr, args->pages, args->pathlen);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int nfs3_xdr_enc_symlink3args(struct rpc_rqst *req, __be32 *p,
|
|
|
|
const struct nfs3_symlinkargs *args)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
|
|
|
|
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
|
|
|
|
encode_diropargs3(&xdr, args->fromfh, args->fromname, args->fromlen);
|
|
|
|
encode_symlinkdata3(&xdr, args);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 3.3.11 MKNOD3args
|
|
|
|
*
|
|
|
|
* struct devicedata3 {
|
|
|
|
* sattr3 dev_attributes;
|
|
|
|
* specdata3 spec;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* union mknoddata3 switch (ftype3 type) {
|
|
|
|
* case NF3CHR:
|
|
|
|
* case NF3BLK:
|
|
|
|
* devicedata3 device;
|
|
|
|
* case NF3SOCK:
|
|
|
|
* case NF3FIFO:
|
|
|
|
* sattr3 pipe_attributes;
|
|
|
|
* default:
|
|
|
|
* void;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* struct MKNOD3args {
|
|
|
|
* diropargs3 where;
|
|
|
|
* mknoddata3 what;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static void encode_devicedata3(struct xdr_stream *xdr,
|
|
|
|
const struct nfs3_mknodargs *args)
|
|
|
|
{
|
|
|
|
encode_sattr3(xdr, args->sattr);
|
|
|
|
encode_specdata3(xdr, args->rdev);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void encode_mknoddata3(struct xdr_stream *xdr,
|
|
|
|
const struct nfs3_mknodargs *args)
|
|
|
|
{
|
|
|
|
encode_ftype3(xdr, args->type);
|
|
|
|
switch (args->type) {
|
|
|
|
case NF3CHR:
|
|
|
|
case NF3BLK:
|
|
|
|
encode_devicedata3(xdr, args);
|
|
|
|
break;
|
|
|
|
case NF3SOCK:
|
|
|
|
case NF3FIFO:
|
|
|
|
encode_sattr3(xdr, args->sattr);
|
|
|
|
break;
|
|
|
|
case NF3REG:
|
|
|
|
case NF3DIR:
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
BUG();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static int nfs3_xdr_enc_mknod3args(struct rpc_rqst *req, __be32 *p,
|
|
|
|
const struct nfs3_mknodargs *args)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
|
|
|
|
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
|
|
|
|
encode_diropargs3(&xdr, args->fh, args->name, args->len);
|
|
|
|
encode_mknoddata3(&xdr, args);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 3.3.12 REMOVE3args
|
|
|
|
*
|
|
|
|
* struct REMOVE3args {
|
|
|
|
* diropargs3 object;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int nfs3_xdr_enc_remove3args(struct rpc_rqst *req, __be32 *p,
|
|
|
|
const struct nfs_removeargs *args)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
|
|
|
|
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
|
|
|
|
encode_diropargs3(&xdr, args->fh, args->name.name, args->name.len);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 3.3.14 RENAME3args
|
|
|
|
*
|
|
|
|
* struct RENAME3args {
|
|
|
|
* diropargs3 from;
|
|
|
|
* diropargs3 to;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int nfs3_xdr_enc_rename3args(struct rpc_rqst *req, __be32 *p,
|
|
|
|
const struct nfs_renameargs *args)
|
|
|
|
{
|
|
|
|
const struct qstr *old = args->old_name;
|
|
|
|
const struct qstr *new = args->new_name;
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
|
|
|
|
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
|
|
|
|
encode_diropargs3(&xdr, args->old_dir, old->name, old->len);
|
|
|
|
encode_diropargs3(&xdr, args->new_dir, new->name, new->len);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 3.3.15 LINK3args
|
|
|
|
*
|
|
|
|
* struct LINK3args {
|
|
|
|
* nfs_fh3 file;
|
|
|
|
* diropargs3 link;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int nfs3_xdr_enc_link3args(struct rpc_rqst *req, __be32 *p,
|
|
|
|
const struct nfs3_linkargs *args)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
|
|
|
|
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
|
|
|
|
encode_nfs_fh3(&xdr, args->fromfh);
|
|
|
|
encode_diropargs3(&xdr, args->tofh, args->toname, args->tolen);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 3.3.16 READDIR3args
|
|
|
|
*
|
|
|
|
* struct READDIR3args {
|
|
|
|
* nfs_fh3 dir;
|
|
|
|
* cookie3 cookie;
|
|
|
|
* cookieverf3 cookieverf;
|
|
|
|
* count3 count;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static void encode_readdir3args(struct xdr_stream *xdr,
|
|
|
|
const struct nfs3_readdirargs *args)
|
|
|
|
{
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
encode_nfs_fh3(xdr, args->fh);
|
|
|
|
|
|
|
|
p = xdr_reserve_space(xdr, 8 + NFS3_COOKIEVERFSIZE + 4);
|
|
|
|
p = xdr_encode_cookie3(p, args->cookie);
|
|
|
|
p = xdr_encode_cookieverf3(p, args->verf);
|
|
|
|
*p = cpu_to_be32(args->count);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int nfs3_xdr_enc_readdir3args(struct rpc_rqst *req, __be32 *p,
|
|
|
|
const struct nfs3_readdirargs *args)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
|
|
|
|
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
|
|
|
|
encode_readdir3args(&xdr, args);
|
|
|
|
prepare_reply_buffer(req, args->pages, 0,
|
|
|
|
args->count, NFS3_readdirres_sz);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 3.3.17 READDIRPLUS3args
|
|
|
|
*
|
|
|
|
* struct READDIRPLUS3args {
|
|
|
|
* nfs_fh3 dir;
|
|
|
|
* cookie3 cookie;
|
|
|
|
* cookieverf3 cookieverf;
|
|
|
|
* count3 dircount;
|
|
|
|
* count3 maxcount;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static void encode_readdirplus3args(struct xdr_stream *xdr,
|
|
|
|
const struct nfs3_readdirargs *args)
|
|
|
|
{
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
encode_nfs_fh3(xdr, args->fh);
|
|
|
|
|
|
|
|
p = xdr_reserve_space(xdr, 8 + NFS3_COOKIEVERFSIZE + 4 + 4);
|
|
|
|
p = xdr_encode_cookie3(p, args->cookie);
|
|
|
|
p = xdr_encode_cookieverf3(p, args->verf);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* readdirplus: need dircount + buffer size.
|
|
|
|
* We just make sure we make dircount big enough
|
|
|
|
*/
|
|
|
|
*p++ = cpu_to_be32(args->count >> 3);
|
|
|
|
|
|
|
|
*p = cpu_to_be32(args->count);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int nfs3_xdr_enc_readdirplus3args(struct rpc_rqst *req, __be32 *p,
|
|
|
|
const struct nfs3_readdirargs *args)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
|
|
|
|
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
|
|
|
|
encode_readdirplus3args(&xdr, args);
|
|
|
|
prepare_reply_buffer(req, args->pages, 0,
|
|
|
|
args->count, NFS3_readdirres_sz);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2005-04-17 02:20:36 +04:00
|
|
|
/*
|
|
|
|
* Decode the result of a readdir call.
|
|
|
|
* We just check for syntactical correctness.
|
|
|
|
*/
|
|
|
|
static int
|
2006-10-20 10:28:48 +04:00
|
|
|
nfs3_xdr_readdirres(struct rpc_rqst *req, __be32 *p, struct nfs3_readdirres *res)
|
2005-04-17 02:20:36 +04:00
|
|
|
{
|
|
|
|
struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
|
|
|
|
struct kvec *iov = rcvbuf->head;
|
|
|
|
struct page **page;
|
2007-10-26 21:31:57 +04:00
|
|
|
size_t hdrlen;
|
2010-10-20 23:44:31 +04:00
|
|
|
u32 recvd, pglen;
|
2010-11-16 04:26:22 +03:00
|
|
|
int status;
|
2005-04-17 02:20:36 +04:00
|
|
|
|
|
|
|
status = ntohl(*p++);
|
|
|
|
/* Decode post_op_attrs */
|
|
|
|
p = xdr_decode_post_op_attr(p, res->dir_attr);
|
|
|
|
if (status)
|
2008-03-31 18:39:06 +04:00
|
|
|
return nfs_stat_to_errno(status);
|
2005-04-17 02:20:36 +04:00
|
|
|
/* Decode verifier cookie */
|
|
|
|
if (res->verf) {
|
|
|
|
res->verf[0] = *p++;
|
|
|
|
res->verf[1] = *p++;
|
|
|
|
} else {
|
|
|
|
p += 2;
|
|
|
|
}
|
|
|
|
|
|
|
|
hdrlen = (u8 *) p - (u8 *) iov->iov_base;
|
|
|
|
if (iov->iov_len < hdrlen) {
|
2007-09-12 02:01:10 +04:00
|
|
|
dprintk("NFS: READDIR reply header overflowed:"
|
2007-10-26 21:31:57 +04:00
|
|
|
"length %Zu > %Zu\n", hdrlen, iov->iov_len);
|
2005-04-17 02:20:36 +04:00
|
|
|
return -errno_NFSERR_IO;
|
|
|
|
} else if (iov->iov_len != hdrlen) {
|
|
|
|
dprintk("NFS: READDIR header is short. iovec will be shifted.\n");
|
|
|
|
xdr_shift_buf(rcvbuf, iov->iov_len - hdrlen);
|
|
|
|
}
|
|
|
|
|
|
|
|
pglen = rcvbuf->page_len;
|
|
|
|
recvd = rcvbuf->len - hdrlen;
|
|
|
|
if (pglen > recvd)
|
|
|
|
pglen = recvd;
|
|
|
|
page = rcvbuf->pages;
|
2008-02-22 22:50:00 +03:00
|
|
|
|
2010-11-16 04:26:22 +03:00
|
|
|
return pglen;
|
2005-04-17 02:20:36 +04:00
|
|
|
}
|
|
|
|
|
2010-12-14 17:55:50 +03:00
|
|
|
/*
|
|
|
|
* 3.3.21 COMMIT3args
|
|
|
|
*
|
|
|
|
* struct COMMIT3args {
|
|
|
|
* nfs_fh3 file;
|
|
|
|
* offset3 offset;
|
|
|
|
* count3 count;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static void encode_commit3args(struct xdr_stream *xdr,
|
|
|
|
const struct nfs_writeargs *args)
|
|
|
|
{
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
encode_nfs_fh3(xdr, args->fh);
|
|
|
|
|
|
|
|
p = xdr_reserve_space(xdr, 8 + 4);
|
|
|
|
p = xdr_encode_hyper(p, args->offset);
|
|
|
|
*p = cpu_to_be32(args->count);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int nfs3_xdr_enc_commit3args(struct rpc_rqst *req, __be32 *p,
|
|
|
|
const struct nfs_writeargs *args)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
|
|
|
|
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
|
|
|
|
encode_commit3args(&xdr, args);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2005-06-22 21:16:27 +04:00
|
|
|
#ifdef CONFIG_NFS_V3_ACL
|
|
|
|
|
2010-12-14 17:55:50 +03:00
|
|
|
static int nfs3_xdr_enc_getacl3args(struct rpc_rqst *req, __be32 *p,
|
|
|
|
const struct nfs3_getaclargs *args)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
|
|
|
|
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
|
|
|
|
encode_nfs_fh3(&xdr, args->fh);
|
|
|
|
encode_uint32(&xdr, args->mask);
|
|
|
|
if (args->mask & (NFS_ACL | NFS_DFACL))
|
|
|
|
prepare_reply_buffer(req, args->pages, 0,
|
|
|
|
NFSACL_MAXPAGES << PAGE_SHIFT,
|
|
|
|
ACL3_getaclres_sz);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int nfs3_xdr_enc_setacl3args(struct rpc_rqst *req, __be32 *p,
|
|
|
|
const struct nfs3_setaclargs *args)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
unsigned int base;
|
|
|
|
int error;
|
|
|
|
|
|
|
|
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
|
|
|
|
encode_nfs_fh3(&xdr, NFS_FH(args->inode));
|
|
|
|
encode_uint32(&xdr, args->mask);
|
|
|
|
if (args->npages != 0)
|
|
|
|
xdr_write_pages(&xdr, args->pages, 0, args->len);
|
|
|
|
|
|
|
|
base = req->rq_slen;
|
|
|
|
error = nfsacl_encode(xdr.buf, base, args->inode,
|
|
|
|
(args->mask & NFS_ACL) ?
|
|
|
|
args->acl_access : NULL, 1, 0);
|
|
|
|
BUG_ON(error < 0);
|
|
|
|
error = nfsacl_encode(xdr.buf, base + error, args->inode,
|
|
|
|
(args->mask & NFS_DFACL) ?
|
|
|
|
args->acl_default : NULL, 1,
|
|
|
|
NFS_ACL_DEFAULT);
|
|
|
|
BUG_ON(error < 0);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2005-06-22 21:16:27 +04:00
|
|
|
#endif /* CONFIG_NFS_V3_ACL */
|
|
|
|
|
2005-04-17 02:20:36 +04:00
|
|
|
/*
|
|
|
|
* NFS XDR decode functions
|
|
|
|
*/
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Decode attrstat reply.
|
|
|
|
*/
|
|
|
|
static int
|
2006-10-20 10:28:48 +04:00
|
|
|
nfs3_xdr_attrstat(struct rpc_rqst *req, __be32 *p, struct nfs_fattr *fattr)
|
2005-04-17 02:20:36 +04:00
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
|
|
|
if ((status = ntohl(*p++)))
|
2008-03-31 18:39:06 +04:00
|
|
|
return nfs_stat_to_errno(status);
|
2005-04-17 02:20:36 +04:00
|
|
|
xdr_decode_fattr(p, fattr);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2010-12-14 17:56:30 +03:00
|
|
|
* 3.3.1 GETATTR3res
|
|
|
|
*
|
|
|
|
* struct GETATTR3resok {
|
|
|
|
* fattr3 obj_attributes;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* union GETATTR3res switch (nfsstat3 status) {
|
|
|
|
* case NFS3_OK:
|
|
|
|
* GETATTR3resok resok;
|
|
|
|
* default:
|
|
|
|
* void;
|
|
|
|
* };
|
2005-04-17 02:20:36 +04:00
|
|
|
*/
|
2010-12-14 17:56:30 +03:00
|
|
|
static int nfs3_xdr_dec_getattr3res(struct rpc_rqst *req, __be32 *p,
|
|
|
|
struct nfs_fattr *result)
|
2005-04-17 02:20:36 +04:00
|
|
|
{
|
2010-12-14 17:56:30 +03:00
|
|
|
struct xdr_stream xdr;
|
|
|
|
enum nfs_stat status;
|
|
|
|
int error;
|
|
|
|
|
|
|
|
xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
|
|
|
|
error = decode_nfsstat3(&xdr, &status);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
if (status != NFS3_OK)
|
|
|
|
goto out_default;
|
|
|
|
error = decode_fattr3(&xdr, result);
|
|
|
|
out:
|
|
|
|
return error;
|
|
|
|
out_default:
|
|
|
|
return nfs_stat_to_errno(status);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Decode status+wcc_data reply
|
|
|
|
* SATTR, REMOVE, RMDIR
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
nfs3_xdr_wccstat(struct rpc_rqst *req, __be32 *p, struct nfs_fattr *fattr)
|
|
|
|
{
|
|
|
|
int status;
|
2005-04-17 02:20:36 +04:00
|
|
|
|
|
|
|
if ((status = ntohl(*p++)))
|
2008-03-31 18:39:06 +04:00
|
|
|
status = nfs_stat_to_errno(status);
|
2005-04-17 02:20:36 +04:00
|
|
|
xdr_decode_wcc_data(p, fattr);
|
|
|
|
return status;
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:56:30 +03:00
|
|
|
/*
|
|
|
|
* 3.3.2 SETATTR3res
|
|
|
|
*
|
|
|
|
* struct SETATTR3resok {
|
|
|
|
* wcc_data obj_wcc;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* struct SETATTR3resfail {
|
|
|
|
* wcc_data obj_wcc;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* union SETATTR3res switch (nfsstat3 status) {
|
|
|
|
* case NFS3_OK:
|
|
|
|
* SETATTR3resok resok;
|
|
|
|
* default:
|
|
|
|
* SETATTR3resfail resfail;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int nfs3_xdr_dec_setattr3res(struct rpc_rqst *req, __be32 *p,
|
|
|
|
struct nfs_fattr *result)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
enum nfs_stat status;
|
|
|
|
int error;
|
|
|
|
|
|
|
|
xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
|
|
|
|
error = decode_nfsstat3(&xdr, &status);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
error = decode_wcc_data(&xdr, result);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
if (status != NFS3_OK)
|
|
|
|
goto out_status;
|
|
|
|
out:
|
|
|
|
return error;
|
|
|
|
out_status:
|
|
|
|
return nfs_stat_to_errno(status);
|
|
|
|
}
|
|
|
|
|
2007-07-14 23:39:57 +04:00
|
|
|
static int
|
|
|
|
nfs3_xdr_removeres(struct rpc_rqst *req, __be32 *p, struct nfs_removeres *res)
|
|
|
|
{
|
2010-04-17 00:22:50 +04:00
|
|
|
return nfs3_xdr_wccstat(req, p, res->dir_attr);
|
2007-07-14 23:39:57 +04:00
|
|
|
}
|
|
|
|
|
2005-04-17 02:20:36 +04:00
|
|
|
/*
|
|
|
|
* Decode LOOKUP reply
|
|
|
|
*/
|
|
|
|
static int
|
2006-10-20 10:28:48 +04:00
|
|
|
nfs3_xdr_lookupres(struct rpc_rqst *req, __be32 *p, struct nfs3_diropres *res)
|
2005-04-17 02:20:36 +04:00
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
|
|
|
if ((status = ntohl(*p++))) {
|
2008-03-31 18:39:06 +04:00
|
|
|
status = nfs_stat_to_errno(status);
|
2005-04-17 02:20:36 +04:00
|
|
|
} else {
|
|
|
|
if (!(p = xdr_decode_fhandle(p, res->fh)))
|
|
|
|
return -errno_NFSERR_IO;
|
|
|
|
p = xdr_decode_post_op_attr(p, res->fattr);
|
|
|
|
}
|
|
|
|
xdr_decode_post_op_attr(p, res->dir_attr);
|
|
|
|
return status;
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:56:30 +03:00
|
|
|
/*
|
|
|
|
* 3.3.3 LOOKUP3res
|
|
|
|
*
|
|
|
|
* struct LOOKUP3resok {
|
|
|
|
* nfs_fh3 object;
|
|
|
|
* post_op_attr obj_attributes;
|
|
|
|
* post_op_attr dir_attributes;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* struct LOOKUP3resfail {
|
|
|
|
* post_op_attr dir_attributes;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* union LOOKUP3res switch (nfsstat3 status) {
|
|
|
|
* case NFS3_OK:
|
|
|
|
* LOOKUP3resok resok;
|
|
|
|
* default:
|
|
|
|
* LOOKUP3resfail resfail;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int nfs3_xdr_dec_lookup3res(struct rpc_rqst *req, __be32 *p,
|
|
|
|
struct nfs3_diropres *result)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
enum nfs_stat status;
|
|
|
|
int error;
|
|
|
|
|
|
|
|
xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
|
|
|
|
error = decode_nfsstat3(&xdr, &status);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
if (status != NFS3_OK)
|
|
|
|
goto out_default;
|
|
|
|
error = decode_nfs_fh3(&xdr, result->fh);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
error = decode_post_op_attr(&xdr, result->fattr);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
error = decode_post_op_attr(&xdr, result->dir_attr);
|
|
|
|
out:
|
|
|
|
return error;
|
|
|
|
out_default:
|
|
|
|
error = decode_post_op_attr(&xdr, result->dir_attr);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
return nfs_stat_to_errno(status);
|
|
|
|
}
|
|
|
|
|
2005-04-17 02:20:36 +04:00
|
|
|
/*
|
|
|
|
* Decode ACCESS reply
|
|
|
|
*/
|
|
|
|
static int
|
2006-10-20 10:28:48 +04:00
|
|
|
nfs3_xdr_accessres(struct rpc_rqst *req, __be32 *p, struct nfs3_accessres *res)
|
2005-04-17 02:20:36 +04:00
|
|
|
{
|
|
|
|
int status = ntohl(*p++);
|
|
|
|
|
|
|
|
p = xdr_decode_post_op_attr(p, res->fattr);
|
|
|
|
if (status)
|
2008-03-31 18:39:06 +04:00
|
|
|
return nfs_stat_to_errno(status);
|
2005-04-17 02:20:36 +04:00
|
|
|
res->access = ntohl(*p++);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:56:30 +03:00
|
|
|
/*
|
|
|
|
* 3.3.4 ACCESS3res
|
|
|
|
*
|
|
|
|
* struct ACCESS3resok {
|
|
|
|
* post_op_attr obj_attributes;
|
|
|
|
* uint32 access;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* struct ACCESS3resfail {
|
|
|
|
* post_op_attr obj_attributes;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* union ACCESS3res switch (nfsstat3 status) {
|
|
|
|
* case NFS3_OK:
|
|
|
|
* ACCESS3resok resok;
|
|
|
|
* default:
|
|
|
|
* ACCESS3resfail resfail;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int nfs3_xdr_dec_access3res(struct rpc_rqst *req, __be32 *p,
|
|
|
|
struct nfs3_accessres *result)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
enum nfs_stat status;
|
|
|
|
int error;
|
|
|
|
|
|
|
|
xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
|
|
|
|
error = decode_nfsstat3(&xdr, &status);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
error = decode_post_op_attr(&xdr, result->fattr);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
if (status != NFS3_OK)
|
|
|
|
goto out_default;
|
|
|
|
error = decode_uint32(&xdr, &result->access);
|
|
|
|
out:
|
|
|
|
return error;
|
|
|
|
out_default:
|
|
|
|
return nfs_stat_to_errno(status);
|
|
|
|
}
|
|
|
|
|
2005-04-17 02:20:36 +04:00
|
|
|
/*
|
|
|
|
* Decode READLINK reply
|
|
|
|
*/
|
|
|
|
static int
|
2006-10-20 10:28:48 +04:00
|
|
|
nfs3_xdr_readlinkres(struct rpc_rqst *req, __be32 *p, struct nfs_fattr *fattr)
|
2005-04-17 02:20:36 +04:00
|
|
|
{
|
|
|
|
struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
|
|
|
|
struct kvec *iov = rcvbuf->head;
|
2007-10-26 21:31:57 +04:00
|
|
|
size_t hdrlen;
|
|
|
|
u32 len, recvd;
|
2005-04-17 02:20:36 +04:00
|
|
|
int status;
|
|
|
|
|
|
|
|
status = ntohl(*p++);
|
|
|
|
p = xdr_decode_post_op_attr(p, fattr);
|
|
|
|
|
|
|
|
if (status != 0)
|
2008-03-31 18:39:06 +04:00
|
|
|
return nfs_stat_to_errno(status);
|
2005-04-17 02:20:36 +04:00
|
|
|
|
|
|
|
/* Convert length of symlink */
|
|
|
|
len = ntohl(*p++);
|
2007-10-26 21:31:57 +04:00
|
|
|
if (len >= rcvbuf->page_len) {
|
2007-09-12 02:01:10 +04:00
|
|
|
dprintk("nfs: server returned giant symlink!\n");
|
2005-04-17 02:20:36 +04:00
|
|
|
return -ENAMETOOLONG;
|
|
|
|
}
|
|
|
|
|
|
|
|
hdrlen = (u8 *) p - (u8 *) iov->iov_base;
|
|
|
|
if (iov->iov_len < hdrlen) {
|
2007-09-12 02:01:10 +04:00
|
|
|
dprintk("NFS: READLINK reply header overflowed:"
|
2007-10-26 21:31:57 +04:00
|
|
|
"length %Zu > %Zu\n", hdrlen, iov->iov_len);
|
2005-04-17 02:20:36 +04:00
|
|
|
return -errno_NFSERR_IO;
|
|
|
|
} else if (iov->iov_len != hdrlen) {
|
2007-09-12 02:01:10 +04:00
|
|
|
dprintk("NFS: READLINK header is short. "
|
|
|
|
"iovec will be shifted.\n");
|
2005-04-17 02:20:36 +04:00
|
|
|
xdr_shift_buf(rcvbuf, iov->iov_len - hdrlen);
|
|
|
|
}
|
|
|
|
recvd = req->rq_rcv_buf.len - hdrlen;
|
|
|
|
if (recvd < len) {
|
2007-09-12 02:01:10 +04:00
|
|
|
dprintk("NFS: server cheating in readlink reply: "
|
2005-04-17 02:20:36 +04:00
|
|
|
"count %u > recvd %u\n", len, recvd);
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
2010-09-22 00:55:48 +04:00
|
|
|
xdr_terminate_string(rcvbuf, len);
|
2005-04-17 02:20:36 +04:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:56:30 +03:00
|
|
|
/*
|
|
|
|
* 3.3.5 READLINK3res
|
|
|
|
*
|
|
|
|
* struct READLINK3resok {
|
|
|
|
* post_op_attr symlink_attributes;
|
|
|
|
* nfspath3 data;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* struct READLINK3resfail {
|
|
|
|
* post_op_attr symlink_attributes;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* union READLINK3res switch (nfsstat3 status) {
|
|
|
|
* case NFS3_OK:
|
|
|
|
* READLINK3resok resok;
|
|
|
|
* default:
|
|
|
|
* READLINK3resfail resfail;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int nfs3_xdr_dec_readlink3res(struct rpc_rqst *req, __be32 *p,
|
|
|
|
struct nfs_fattr *result)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
enum nfs_stat status;
|
|
|
|
int error;
|
|
|
|
|
|
|
|
xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
|
|
|
|
error = decode_nfsstat3(&xdr, &status);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
error = decode_post_op_attr(&xdr, result);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
if (status != NFS3_OK)
|
|
|
|
goto out_default;
|
|
|
|
error = decode_nfspath3(&xdr);
|
|
|
|
out:
|
|
|
|
return error;
|
|
|
|
out_default:
|
|
|
|
return nfs_stat_to_errno(status);
|
|
|
|
}
|
|
|
|
|
2005-04-17 02:20:36 +04:00
|
|
|
/*
|
|
|
|
* Decode READ reply
|
|
|
|
*/
|
|
|
|
static int
|
2006-10-20 10:28:48 +04:00
|
|
|
nfs3_xdr_readres(struct rpc_rqst *req, __be32 *p, struct nfs_readres *res)
|
2005-04-17 02:20:36 +04:00
|
|
|
{
|
|
|
|
struct kvec *iov = req->rq_rcv_buf.head;
|
2007-10-26 21:31:57 +04:00
|
|
|
size_t hdrlen;
|
|
|
|
u32 count, ocount, recvd;
|
|
|
|
int status;
|
2005-04-17 02:20:36 +04:00
|
|
|
|
|
|
|
status = ntohl(*p++);
|
|
|
|
p = xdr_decode_post_op_attr(p, res->fattr);
|
|
|
|
|
|
|
|
if (status != 0)
|
2008-03-31 18:39:06 +04:00
|
|
|
return nfs_stat_to_errno(status);
|
2005-04-17 02:20:36 +04:00
|
|
|
|
2007-10-26 21:31:57 +04:00
|
|
|
/* Decode reply count and EOF flag. NFSv3 is somewhat redundant
|
2005-04-17 02:20:36 +04:00
|
|
|
* in that it puts the count both in the res struct and in the
|
|
|
|
* opaque data count. */
|
|
|
|
count = ntohl(*p++);
|
|
|
|
res->eof = ntohl(*p++);
|
|
|
|
ocount = ntohl(*p++);
|
|
|
|
|
|
|
|
if (ocount != count) {
|
2007-09-12 02:01:10 +04:00
|
|
|
dprintk("NFS: READ count doesn't match RPC opaque count.\n");
|
2005-04-17 02:20:36 +04:00
|
|
|
return -errno_NFSERR_IO;
|
|
|
|
}
|
|
|
|
|
|
|
|
hdrlen = (u8 *) p - (u8 *) iov->iov_base;
|
|
|
|
if (iov->iov_len < hdrlen) {
|
2007-09-12 02:01:10 +04:00
|
|
|
dprintk("NFS: READ reply header overflowed:"
|
2007-10-26 21:31:57 +04:00
|
|
|
"length %Zu > %Zu\n", hdrlen, iov->iov_len);
|
2005-04-17 02:20:36 +04:00
|
|
|
return -errno_NFSERR_IO;
|
|
|
|
} else if (iov->iov_len != hdrlen) {
|
|
|
|
dprintk("NFS: READ header is short. iovec will be shifted.\n");
|
|
|
|
xdr_shift_buf(&req->rq_rcv_buf, iov->iov_len - hdrlen);
|
|
|
|
}
|
|
|
|
|
|
|
|
recvd = req->rq_rcv_buf.len - hdrlen;
|
|
|
|
if (count > recvd) {
|
2007-09-12 02:01:10 +04:00
|
|
|
dprintk("NFS: server cheating in read reply: "
|
2007-10-26 21:31:57 +04:00
|
|
|
"count %u > recvd %u\n", count, recvd);
|
2005-04-17 02:20:36 +04:00
|
|
|
count = recvd;
|
|
|
|
res->eof = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (count < res->count)
|
|
|
|
res->count = count;
|
|
|
|
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:56:30 +03:00
|
|
|
/*
|
|
|
|
* 3.3.6 READ3res
|
|
|
|
*
|
|
|
|
* struct READ3resok {
|
|
|
|
* post_op_attr file_attributes;
|
|
|
|
* count3 count;
|
|
|
|
* bool eof;
|
|
|
|
* opaque data<>;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* struct READ3resfail {
|
|
|
|
* post_op_attr file_attributes;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* union READ3res switch (nfsstat3 status) {
|
|
|
|
* case NFS3_OK:
|
|
|
|
* READ3resok resok;
|
|
|
|
* default:
|
|
|
|
* READ3resfail resfail;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int decode_read3resok(struct xdr_stream *xdr,
|
|
|
|
struct nfs_readres *result)
|
|
|
|
{
|
|
|
|
u32 eof, count, ocount, recvd;
|
|
|
|
size_t hdrlen;
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
p = xdr_inline_decode(xdr, 4 + 4 + 4);
|
|
|
|
if (unlikely(p == NULL))
|
|
|
|
goto out_overflow;
|
|
|
|
count = be32_to_cpup(p++);
|
|
|
|
eof = be32_to_cpup(p++);
|
|
|
|
ocount = be32_to_cpup(p++);
|
|
|
|
if (unlikely(ocount != count))
|
|
|
|
goto out_mismatch;
|
|
|
|
hdrlen = (u8 *)xdr->p - (u8 *)xdr->iov->iov_base;
|
|
|
|
recvd = xdr->buf->len - hdrlen;
|
|
|
|
if (unlikely(count > recvd))
|
|
|
|
goto out_cheating;
|
|
|
|
|
|
|
|
out:
|
|
|
|
xdr_read_pages(xdr, count);
|
|
|
|
result->eof = eof;
|
|
|
|
result->count = count;
|
|
|
|
return count;
|
|
|
|
out_mismatch:
|
|
|
|
dprintk("NFS: READ count doesn't match length of opaque: "
|
|
|
|
"count %u != ocount %u\n", count, ocount);
|
|
|
|
return -EIO;
|
|
|
|
out_cheating:
|
|
|
|
dprintk("NFS: server cheating in read result: "
|
|
|
|
"count %u > recvd %u\n", count, recvd);
|
|
|
|
count = recvd;
|
|
|
|
eof = 0;
|
|
|
|
goto out;
|
|
|
|
out_overflow:
|
|
|
|
print_overflow_msg(__func__, xdr);
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int nfs3_xdr_dec_read3res(struct rpc_rqst *req, __be32 *p,
|
|
|
|
struct nfs_readres *result)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
enum nfs_stat status;
|
|
|
|
int error;
|
|
|
|
|
|
|
|
xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
|
|
|
|
error = decode_nfsstat3(&xdr, &status);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
error = decode_post_op_attr(&xdr, result->fattr);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
if (status != NFS3_OK)
|
|
|
|
goto out_status;
|
|
|
|
error = decode_read3resok(&xdr, result);
|
|
|
|
out:
|
|
|
|
return error;
|
|
|
|
out_status:
|
|
|
|
return nfs_stat_to_errno(status);
|
|
|
|
}
|
|
|
|
|
2005-04-17 02:20:36 +04:00
|
|
|
/*
|
|
|
|
* Decode WRITE response
|
|
|
|
*/
|
|
|
|
static int
|
2006-10-20 10:28:48 +04:00
|
|
|
nfs3_xdr_writeres(struct rpc_rqst *req, __be32 *p, struct nfs_writeres *res)
|
2005-04-17 02:20:36 +04:00
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
|
|
|
status = ntohl(*p++);
|
|
|
|
p = xdr_decode_wcc_data(p, res->fattr);
|
|
|
|
|
|
|
|
if (status != 0)
|
2008-03-31 18:39:06 +04:00
|
|
|
return nfs_stat_to_errno(status);
|
2005-04-17 02:20:36 +04:00
|
|
|
|
|
|
|
res->count = ntohl(*p++);
|
|
|
|
res->verf->committed = (enum nfs3_stable_how)ntohl(*p++);
|
|
|
|
res->verf->verifier[0] = *p++;
|
|
|
|
res->verf->verifier[1] = *p++;
|
|
|
|
|
|
|
|
return res->count;
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:56:30 +03:00
|
|
|
/*
|
|
|
|
* 3.3.7 WRITE3res
|
|
|
|
*
|
|
|
|
* enum stable_how {
|
|
|
|
* UNSTABLE = 0,
|
|
|
|
* DATA_SYNC = 1,
|
|
|
|
* FILE_SYNC = 2
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* struct WRITE3resok {
|
|
|
|
* wcc_data file_wcc;
|
|
|
|
* count3 count;
|
|
|
|
* stable_how committed;
|
|
|
|
* writeverf3 verf;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* struct WRITE3resfail {
|
|
|
|
* wcc_data file_wcc;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* union WRITE3res switch (nfsstat3 status) {
|
|
|
|
* case NFS3_OK:
|
|
|
|
* WRITE3resok resok;
|
|
|
|
* default:
|
|
|
|
* WRITE3resfail resfail;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int decode_write3resok(struct xdr_stream *xdr,
|
|
|
|
struct nfs_writeres *result)
|
|
|
|
{
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
p = xdr_inline_decode(xdr, 4 + 4 + NFS3_WRITEVERFSIZE);
|
|
|
|
if (unlikely(p == NULL))
|
|
|
|
goto out_overflow;
|
|
|
|
result->count = be32_to_cpup(p++);
|
|
|
|
result->verf->committed = be32_to_cpup(p++);
|
|
|
|
if (unlikely(result->verf->committed > NFS_FILE_SYNC))
|
|
|
|
goto out_badvalue;
|
|
|
|
memcpy(result->verf->verifier, p, NFS3_WRITEVERFSIZE);
|
|
|
|
return result->count;
|
|
|
|
out_badvalue:
|
|
|
|
dprintk("NFS: bad stable_how value: %u\n", result->verf->committed);
|
|
|
|
return -EIO;
|
|
|
|
out_overflow:
|
|
|
|
print_overflow_msg(__func__, xdr);
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int nfs3_xdr_dec_write3res(struct rpc_rqst *req, __be32 *p,
|
|
|
|
struct nfs_writeres *result)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
enum nfs_stat status;
|
|
|
|
int error;
|
|
|
|
|
|
|
|
xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
|
|
|
|
error = decode_nfsstat3(&xdr, &status);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
error = decode_wcc_data(&xdr, result->fattr);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
if (status != NFS3_OK)
|
|
|
|
goto out_status;
|
|
|
|
error = decode_write3resok(&xdr, result);
|
|
|
|
out:
|
|
|
|
return error;
|
|
|
|
out_status:
|
|
|
|
return nfs_stat_to_errno(status);
|
|
|
|
}
|
|
|
|
|
2005-04-17 02:20:36 +04:00
|
|
|
/*
|
|
|
|
* Decode a CREATE response
|
|
|
|
*/
|
|
|
|
static int
|
2006-10-20 10:28:48 +04:00
|
|
|
nfs3_xdr_createres(struct rpc_rqst *req, __be32 *p, struct nfs3_diropres *res)
|
2005-04-17 02:20:36 +04:00
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
|
|
|
status = ntohl(*p++);
|
|
|
|
if (status == 0) {
|
|
|
|
if (*p++) {
|
|
|
|
if (!(p = xdr_decode_fhandle(p, res->fh)))
|
|
|
|
return -errno_NFSERR_IO;
|
|
|
|
p = xdr_decode_post_op_attr(p, res->fattr);
|
|
|
|
} else {
|
|
|
|
memset(res->fh, 0, sizeof(*res->fh));
|
|
|
|
/* Do decode post_op_attr but set it to NULL */
|
|
|
|
p = xdr_decode_post_op_attr(p, res->fattr);
|
|
|
|
res->fattr->valid = 0;
|
|
|
|
}
|
|
|
|
} else {
|
2008-03-31 18:39:06 +04:00
|
|
|
status = nfs_stat_to_errno(status);
|
2005-04-17 02:20:36 +04:00
|
|
|
}
|
|
|
|
p = xdr_decode_wcc_data(p, res->dir_attr);
|
|
|
|
return status;
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:56:30 +03:00
|
|
|
/*
|
|
|
|
* 3.3.8 CREATE3res
|
|
|
|
*
|
|
|
|
* struct CREATE3resok {
|
|
|
|
* post_op_fh3 obj;
|
|
|
|
* post_op_attr obj_attributes;
|
|
|
|
* wcc_data dir_wcc;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* struct CREATE3resfail {
|
|
|
|
* wcc_data dir_wcc;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* union CREATE3res switch (nfsstat3 status) {
|
|
|
|
* case NFS3_OK:
|
|
|
|
* CREATE3resok resok;
|
|
|
|
* default:
|
|
|
|
* CREATE3resfail resfail;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int decode_create3resok(struct xdr_stream *xdr,
|
|
|
|
struct nfs3_diropres *result)
|
|
|
|
{
|
|
|
|
int error;
|
|
|
|
|
|
|
|
error = decode_post_op_fh3(xdr, result->fh);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
error = decode_post_op_attr(xdr, result->fattr);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
/* The server isn't required to return a file handle.
|
|
|
|
* If it didn't, force the client to perform a LOOKUP
|
|
|
|
* to determine the correct file handle and attribute
|
|
|
|
* values for the new object. */
|
|
|
|
if (result->fh->size == 0)
|
|
|
|
result->fattr->valid = 0;
|
|
|
|
error = decode_wcc_data(xdr, result->dir_attr);
|
|
|
|
out:
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int nfs3_xdr_dec_create3res(struct rpc_rqst *req, __be32 *p,
|
|
|
|
struct nfs3_diropres *result)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
enum nfs_stat status;
|
|
|
|
int error;
|
|
|
|
|
|
|
|
xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
|
|
|
|
error = decode_nfsstat3(&xdr, &status);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
if (status != NFS3_OK)
|
|
|
|
goto out_default;
|
|
|
|
error = decode_create3resok(&xdr, result);
|
|
|
|
out:
|
|
|
|
return error;
|
|
|
|
out_default:
|
|
|
|
error = decode_wcc_data(&xdr, result->dir_attr);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
return nfs_stat_to_errno(status);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 3.3.12 REMOVE3res
|
|
|
|
*
|
|
|
|
* struct REMOVE3resok {
|
|
|
|
* wcc_data dir_wcc;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* struct REMOVE3resfail {
|
|
|
|
* wcc_data dir_wcc;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* union REMOVE3res switch (nfsstat3 status) {
|
|
|
|
* case NFS3_OK:
|
|
|
|
* REMOVE3resok resok;
|
|
|
|
* default:
|
|
|
|
* REMOVE3resfail resfail;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int nfs3_xdr_dec_remove3res(struct rpc_rqst *req, __be32 *p,
|
|
|
|
struct nfs_removeres *result)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
enum nfs_stat status;
|
|
|
|
int error;
|
|
|
|
|
|
|
|
xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
|
|
|
|
error = decode_nfsstat3(&xdr, &status);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
error = decode_wcc_data(&xdr, result->dir_attr);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
if (status != NFS3_OK)
|
|
|
|
goto out_status;
|
|
|
|
out:
|
|
|
|
return error;
|
|
|
|
out_status:
|
|
|
|
return nfs_stat_to_errno(status);
|
|
|
|
}
|
|
|
|
|
2005-04-17 02:20:36 +04:00
|
|
|
/*
|
|
|
|
* Decode RENAME reply
|
|
|
|
*/
|
|
|
|
static int
|
2010-09-18 01:31:06 +04:00
|
|
|
nfs3_xdr_renameres(struct rpc_rqst *req, __be32 *p, struct nfs_renameres *res)
|
2005-04-17 02:20:36 +04:00
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
|
|
|
if ((status = ntohl(*p++)) != 0)
|
2008-03-31 18:39:06 +04:00
|
|
|
status = nfs_stat_to_errno(status);
|
2010-09-18 01:31:06 +04:00
|
|
|
p = xdr_decode_wcc_data(p, res->old_fattr);
|
|
|
|
p = xdr_decode_wcc_data(p, res->new_fattr);
|
2005-04-17 02:20:36 +04:00
|
|
|
return status;
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:56:30 +03:00
|
|
|
/*
|
|
|
|
* 3.3.14 RENAME3res
|
|
|
|
*
|
|
|
|
* struct RENAME3resok {
|
|
|
|
* wcc_data fromdir_wcc;
|
|
|
|
* wcc_data todir_wcc;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* struct RENAME3resfail {
|
|
|
|
* wcc_data fromdir_wcc;
|
|
|
|
* wcc_data todir_wcc;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* union RENAME3res switch (nfsstat3 status) {
|
|
|
|
* case NFS3_OK:
|
|
|
|
* RENAME3resok resok;
|
|
|
|
* default:
|
|
|
|
* RENAME3resfail resfail;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int nfs3_xdr_dec_rename3res(struct rpc_rqst *req, __be32 *p,
|
|
|
|
struct nfs_renameres *result)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
enum nfs_stat status;
|
|
|
|
int error;
|
|
|
|
|
|
|
|
xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
|
|
|
|
error = decode_nfsstat3(&xdr, &status);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
error = decode_wcc_data(&xdr, result->old_fattr);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
error = decode_wcc_data(&xdr, result->new_fattr);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
if (status != NFS3_OK)
|
|
|
|
goto out_status;
|
|
|
|
out:
|
|
|
|
return error;
|
|
|
|
out_status:
|
|
|
|
return nfs_stat_to_errno(status);
|
|
|
|
}
|
|
|
|
|
2005-04-17 02:20:36 +04:00
|
|
|
/*
|
|
|
|
* Decode LINK reply
|
|
|
|
*/
|
|
|
|
static int
|
2006-10-20 10:28:48 +04:00
|
|
|
nfs3_xdr_linkres(struct rpc_rqst *req, __be32 *p, struct nfs3_linkres *res)
|
2005-04-17 02:20:36 +04:00
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
|
|
|
if ((status = ntohl(*p++)) != 0)
|
2008-03-31 18:39:06 +04:00
|
|
|
status = nfs_stat_to_errno(status);
|
2005-04-17 02:20:36 +04:00
|
|
|
p = xdr_decode_post_op_attr(p, res->fattr);
|
|
|
|
p = xdr_decode_wcc_data(p, res->dir_attr);
|
|
|
|
return status;
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:56:30 +03:00
|
|
|
/*
|
|
|
|
* 3.3.15 LINK3res
|
|
|
|
*
|
|
|
|
* struct LINK3resok {
|
|
|
|
* post_op_attr file_attributes;
|
|
|
|
* wcc_data linkdir_wcc;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* struct LINK3resfail {
|
|
|
|
* post_op_attr file_attributes;
|
|
|
|
* wcc_data linkdir_wcc;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* union LINK3res switch (nfsstat3 status) {
|
|
|
|
* case NFS3_OK:
|
|
|
|
* LINK3resok resok;
|
|
|
|
* default:
|
|
|
|
* LINK3resfail resfail;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int nfs3_xdr_dec_link3res(struct rpc_rqst *req, __be32 *p,
|
|
|
|
struct nfs3_linkres *result)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
enum nfs_stat status;
|
|
|
|
int error;
|
|
|
|
|
|
|
|
xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
|
|
|
|
error = decode_nfsstat3(&xdr, &status);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
error = decode_post_op_attr(&xdr, result->fattr);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
error = decode_wcc_data(&xdr, result->dir_attr);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
if (status != NFS3_OK)
|
|
|
|
goto out_status;
|
|
|
|
out:
|
|
|
|
return error;
|
|
|
|
out_status:
|
|
|
|
return nfs_stat_to_errno(status);
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* nfs3_decode_dirent - Decode a single NFSv3 directory entry stored in
|
|
|
|
* the local page cache
|
|
|
|
* @xdr: XDR stream where entry resides
|
|
|
|
* @entry: buffer to fill in with entry data
|
|
|
|
* @server: nfs_server data for this directory
|
|
|
|
* @plus: boolean indicating whether this should be a readdirplus entry
|
|
|
|
*
|
|
|
|
* Returns the position of the next item in the buffer, or an ERR_PTR.
|
|
|
|
*
|
|
|
|
* This function is not invoked during READDIR reply decoding, but
|
|
|
|
* rather whenever an application invokes the getdents(2) system call
|
|
|
|
* on a directory already in our cache.
|
|
|
|
*
|
|
|
|
* 3.3.16 entry3
|
|
|
|
*
|
|
|
|
* struct entry3 {
|
|
|
|
* fileid3 fileid;
|
|
|
|
* filename3 name;
|
|
|
|
* cookie3 cookie;
|
|
|
|
* fhandle3 filehandle;
|
|
|
|
* post_op_attr3 attributes;
|
|
|
|
* entry3 *nextentry;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* 3.3.17 entryplus3
|
|
|
|
* struct entryplus3 {
|
|
|
|
* fileid3 fileid;
|
|
|
|
* filename3 name;
|
|
|
|
* cookie3 cookie;
|
|
|
|
* post_op_attr name_attributes;
|
|
|
|
* post_op_fh3 name_handle;
|
|
|
|
* entryplus3 *nextentry;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
__be32 *nfs3_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
|
|
|
|
struct nfs_server *server, int plus)
|
|
|
|
{
|
|
|
|
struct nfs_entry old = *entry;
|
|
|
|
__be32 *p;
|
|
|
|
int error;
|
|
|
|
|
|
|
|
p = xdr_inline_decode(xdr, 4);
|
|
|
|
if (unlikely(p == NULL))
|
|
|
|
goto out_overflow;
|
|
|
|
if (*p == xdr_zero) {
|
|
|
|
p = xdr_inline_decode(xdr, 4);
|
|
|
|
if (unlikely(p == NULL))
|
|
|
|
goto out_overflow;
|
|
|
|
if (*p == xdr_zero)
|
|
|
|
return ERR_PTR(-EAGAIN);
|
|
|
|
entry->eof = 1;
|
|
|
|
return ERR_PTR(-EBADCOOKIE);
|
|
|
|
}
|
|
|
|
|
|
|
|
error = decode_fileid3(xdr, &entry->ino);
|
|
|
|
if (unlikely(error))
|
|
|
|
return ERR_PTR(error);
|
|
|
|
|
|
|
|
error = decode_inline_filename3(xdr, &entry->name, &entry->len);
|
|
|
|
if (unlikely(error))
|
|
|
|
return ERR_PTR(error);
|
|
|
|
|
|
|
|
entry->prev_cookie = entry->cookie;
|
|
|
|
error = decode_cookie3(xdr, &entry->cookie);
|
|
|
|
if (unlikely(error))
|
|
|
|
return ERR_PTR(error);
|
|
|
|
|
|
|
|
entry->d_type = DT_UNKNOWN;
|
|
|
|
|
|
|
|
if (plus) {
|
|
|
|
entry->fattr->valid = 0;
|
|
|
|
error = decode_post_op_attr(xdr, entry->fattr);
|
|
|
|
if (unlikely(error))
|
|
|
|
return ERR_PTR(error);
|
|
|
|
if (entry->fattr->valid & NFS_ATTR_FATTR_V3)
|
|
|
|
entry->d_type = nfs_umode_to_dtype(entry->fattr->mode);
|
|
|
|
|
|
|
|
/* In fact, a post_op_fh3: */
|
|
|
|
p = xdr_inline_decode(xdr, 4);
|
|
|
|
if (unlikely(p == NULL))
|
|
|
|
goto out_overflow;
|
|
|
|
if (*p != xdr_zero) {
|
|
|
|
error = decode_nfs_fh3(xdr, entry->fh);
|
|
|
|
if (unlikely(error)) {
|
|
|
|
if (error == -E2BIG)
|
|
|
|
goto out_truncated;
|
|
|
|
return ERR_PTR(error);
|
|
|
|
}
|
|
|
|
} else
|
|
|
|
zero_nfs_fh3(entry->fh);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Peek at the next entry to see if we're at EOD */
|
|
|
|
p = xdr_inline_peek(xdr, 4 + 4);
|
|
|
|
entry->eof = 0;
|
|
|
|
if (p != NULL)
|
|
|
|
entry->eof = (p[0] == xdr_zero) && (p[1] != xdr_zero);
|
|
|
|
return p;
|
|
|
|
|
|
|
|
out_overflow:
|
|
|
|
print_overflow_msg(__func__, xdr);
|
|
|
|
return ERR_PTR(-EAGAIN);
|
|
|
|
out_truncated:
|
|
|
|
dprintk("NFS: directory entry contains invalid file handle\n");
|
|
|
|
*entry = old;
|
|
|
|
return ERR_PTR(-EAGAIN);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 3.3.16 READDIR3res
|
|
|
|
*
|
|
|
|
* struct dirlist3 {
|
|
|
|
* entry3 *entries;
|
|
|
|
* bool eof;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* struct READDIR3resok {
|
|
|
|
* post_op_attr dir_attributes;
|
|
|
|
* cookieverf3 cookieverf;
|
|
|
|
* dirlist3 reply;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* struct READDIR3resfail {
|
|
|
|
* post_op_attr dir_attributes;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* union READDIR3res switch (nfsstat3 status) {
|
|
|
|
* case NFS3_OK:
|
|
|
|
* READDIR3resok resok;
|
|
|
|
* default:
|
|
|
|
* READDIR3resfail resfail;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* Read the directory contents into the page cache, but otherwise
|
|
|
|
* don't touch them. The actual decoding is done by nfs3_decode_entry()
|
|
|
|
* during subsequent nfs_readdir() calls.
|
|
|
|
*/
|
|
|
|
static int decode_dirlist3(struct xdr_stream *xdr)
|
|
|
|
{
|
|
|
|
u32 recvd, pglen;
|
|
|
|
size_t hdrlen;
|
|
|
|
|
|
|
|
pglen = xdr->buf->page_len;
|
|
|
|
hdrlen = (u8 *)xdr->p - (u8 *)xdr->iov->iov_base;
|
|
|
|
recvd = xdr->buf->len - hdrlen;
|
|
|
|
if (unlikely(pglen > recvd))
|
|
|
|
goto out_cheating;
|
|
|
|
out:
|
|
|
|
xdr_read_pages(xdr, pglen);
|
|
|
|
return pglen;
|
|
|
|
out_cheating:
|
|
|
|
dprintk("NFS: server cheating in readdir result: "
|
|
|
|
"pglen %u > recvd %u\n", pglen, recvd);
|
|
|
|
pglen = recvd;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int decode_readdir3resok(struct xdr_stream *xdr,
|
|
|
|
struct nfs3_readdirres *result)
|
|
|
|
{
|
|
|
|
int error;
|
|
|
|
|
|
|
|
error = decode_post_op_attr(xdr, result->dir_attr);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
/* XXX: do we need to check if result->verf != NULL ? */
|
|
|
|
error = decode_cookieverf3(xdr, result->verf);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
error = decode_dirlist3(xdr);
|
|
|
|
out:
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int nfs3_xdr_dec_readdir3res(struct rpc_rqst *req, __be32 *p,
|
|
|
|
struct nfs3_readdirres *result)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
enum nfs_stat status;
|
|
|
|
int error;
|
|
|
|
|
|
|
|
xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
|
|
|
|
error = decode_nfsstat3(&xdr, &status);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
if (status != NFS3_OK)
|
|
|
|
goto out_default;
|
|
|
|
error = decode_readdir3resok(&xdr, result);
|
|
|
|
out:
|
|
|
|
return error;
|
|
|
|
out_default:
|
|
|
|
error = decode_post_op_attr(&xdr, result->dir_attr);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
return nfs_stat_to_errno(status);
|
|
|
|
}
|
|
|
|
|
2005-04-17 02:20:36 +04:00
|
|
|
/*
|
|
|
|
* Decode FSSTAT reply
|
|
|
|
*/
|
|
|
|
static int
|
2006-10-20 10:28:48 +04:00
|
|
|
nfs3_xdr_fsstatres(struct rpc_rqst *req, __be32 *p, struct nfs_fsstat *res)
|
2005-04-17 02:20:36 +04:00
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
|
|
|
status = ntohl(*p++);
|
|
|
|
|
|
|
|
p = xdr_decode_post_op_attr(p, res->fattr);
|
|
|
|
if (status != 0)
|
2008-03-31 18:39:06 +04:00
|
|
|
return nfs_stat_to_errno(status);
|
2005-04-17 02:20:36 +04:00
|
|
|
|
|
|
|
p = xdr_decode_hyper(p, &res->tbytes);
|
|
|
|
p = xdr_decode_hyper(p, &res->fbytes);
|
|
|
|
p = xdr_decode_hyper(p, &res->abytes);
|
|
|
|
p = xdr_decode_hyper(p, &res->tfiles);
|
|
|
|
p = xdr_decode_hyper(p, &res->ffiles);
|
|
|
|
p = xdr_decode_hyper(p, &res->afiles);
|
|
|
|
|
|
|
|
/* ignore invarsec */
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:56:30 +03:00
|
|
|
/*
|
|
|
|
* 3.3.18 FSSTAT3res
|
|
|
|
*
|
|
|
|
* struct FSSTAT3resok {
|
|
|
|
* post_op_attr obj_attributes;
|
|
|
|
* size3 tbytes;
|
|
|
|
* size3 fbytes;
|
|
|
|
* size3 abytes;
|
|
|
|
* size3 tfiles;
|
|
|
|
* size3 ffiles;
|
|
|
|
* size3 afiles;
|
|
|
|
* uint32 invarsec;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* struct FSSTAT3resfail {
|
|
|
|
* post_op_attr obj_attributes;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* union FSSTAT3res switch (nfsstat3 status) {
|
|
|
|
* case NFS3_OK:
|
|
|
|
* FSSTAT3resok resok;
|
|
|
|
* default:
|
|
|
|
* FSSTAT3resfail resfail;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int decode_fsstat3resok(struct xdr_stream *xdr,
|
|
|
|
struct nfs_fsstat *result)
|
|
|
|
{
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
p = xdr_inline_decode(xdr, 8 * 6 + 4);
|
|
|
|
if (unlikely(p == NULL))
|
|
|
|
goto out_overflow;
|
|
|
|
p = xdr_decode_size3(p, &result->tbytes);
|
|
|
|
p = xdr_decode_size3(p, &result->fbytes);
|
|
|
|
p = xdr_decode_size3(p, &result->abytes);
|
|
|
|
p = xdr_decode_size3(p, &result->tfiles);
|
|
|
|
p = xdr_decode_size3(p, &result->ffiles);
|
|
|
|
xdr_decode_size3(p, &result->afiles);
|
|
|
|
/* ignore invarsec */
|
|
|
|
return 0;
|
|
|
|
out_overflow:
|
|
|
|
print_overflow_msg(__func__, xdr);
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int nfs3_xdr_dec_fsstat3res(struct rpc_rqst *req, __be32 *p,
|
|
|
|
struct nfs_fsstat *result)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
enum nfs_stat status;
|
|
|
|
int error;
|
|
|
|
|
|
|
|
xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
|
|
|
|
error = decode_nfsstat3(&xdr, &status);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
error = decode_post_op_attr(&xdr, result->fattr);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
if (status != NFS3_OK)
|
|
|
|
goto out_status;
|
|
|
|
error = decode_fsstat3resok(&xdr, result);
|
|
|
|
out:
|
|
|
|
return error;
|
|
|
|
out_status:
|
|
|
|
return nfs_stat_to_errno(status);
|
|
|
|
}
|
|
|
|
|
2005-04-17 02:20:36 +04:00
|
|
|
/*
|
|
|
|
* Decode FSINFO reply
|
|
|
|
*/
|
|
|
|
static int
|
2006-10-20 10:28:48 +04:00
|
|
|
nfs3_xdr_fsinfores(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *res)
|
2005-04-17 02:20:36 +04:00
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
|
|
|
status = ntohl(*p++);
|
|
|
|
|
|
|
|
p = xdr_decode_post_op_attr(p, res->fattr);
|
|
|
|
if (status != 0)
|
2008-03-31 18:39:06 +04:00
|
|
|
return nfs_stat_to_errno(status);
|
2005-04-17 02:20:36 +04:00
|
|
|
|
|
|
|
res->rtmax = ntohl(*p++);
|
|
|
|
res->rtpref = ntohl(*p++);
|
|
|
|
res->rtmult = ntohl(*p++);
|
|
|
|
res->wtmax = ntohl(*p++);
|
|
|
|
res->wtpref = ntohl(*p++);
|
|
|
|
res->wtmult = ntohl(*p++);
|
|
|
|
res->dtpref = ntohl(*p++);
|
|
|
|
p = xdr_decode_hyper(p, &res->maxfilesize);
|
2010-10-13 03:30:05 +04:00
|
|
|
p = xdr_decode_time3(p, &res->time_delta);
|
2005-04-17 02:20:36 +04:00
|
|
|
|
2010-10-13 03:30:05 +04:00
|
|
|
/* ignore properties */
|
2005-04-17 02:20:36 +04:00
|
|
|
res->lease_time = 0;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:56:30 +03:00
|
|
|
/*
|
|
|
|
* 3.3.19 FSINFO3res
|
|
|
|
*
|
|
|
|
* struct FSINFO3resok {
|
|
|
|
* post_op_attr obj_attributes;
|
|
|
|
* uint32 rtmax;
|
|
|
|
* uint32 rtpref;
|
|
|
|
* uint32 rtmult;
|
|
|
|
* uint32 wtmax;
|
|
|
|
* uint32 wtpref;
|
|
|
|
* uint32 wtmult;
|
|
|
|
* uint32 dtpref;
|
|
|
|
* size3 maxfilesize;
|
|
|
|
* nfstime3 time_delta;
|
|
|
|
* uint32 properties;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* struct FSINFO3resfail {
|
|
|
|
* post_op_attr obj_attributes;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* union FSINFO3res switch (nfsstat3 status) {
|
|
|
|
* case NFS3_OK:
|
|
|
|
* FSINFO3resok resok;
|
|
|
|
* default:
|
|
|
|
* FSINFO3resfail resfail;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int decode_fsinfo3resok(struct xdr_stream *xdr,
|
|
|
|
struct nfs_fsinfo *result)
|
|
|
|
{
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
p = xdr_inline_decode(xdr, 4 * 7 + 8 + 8 + 4);
|
|
|
|
if (unlikely(p == NULL))
|
|
|
|
goto out_overflow;
|
|
|
|
result->rtmax = be32_to_cpup(p++);
|
|
|
|
result->rtpref = be32_to_cpup(p++);
|
|
|
|
result->rtmult = be32_to_cpup(p++);
|
|
|
|
result->wtmax = be32_to_cpup(p++);
|
|
|
|
result->wtpref = be32_to_cpup(p++);
|
|
|
|
result->wtmult = be32_to_cpup(p++);
|
|
|
|
result->dtpref = be32_to_cpup(p++);
|
|
|
|
p = xdr_decode_size3(p, &result->maxfilesize);
|
|
|
|
xdr_decode_time3(p, &result->time_delta);
|
|
|
|
|
|
|
|
/* ignore properties */
|
|
|
|
result->lease_time = 0;
|
|
|
|
return 0;
|
|
|
|
out_overflow:
|
|
|
|
print_overflow_msg(__func__, xdr);
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int nfs3_xdr_dec_fsinfo3res(struct rpc_rqst *req, __be32 *p,
|
|
|
|
struct nfs_fsinfo *result)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
enum nfs_stat status;
|
|
|
|
int error;
|
|
|
|
|
|
|
|
xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
|
|
|
|
error = decode_nfsstat3(&xdr, &status);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
error = decode_post_op_attr(&xdr, result->fattr);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
if (status != NFS3_OK)
|
|
|
|
goto out_status;
|
|
|
|
error = decode_fsinfo3resok(&xdr, result);
|
|
|
|
out:
|
|
|
|
return error;
|
|
|
|
out_status:
|
|
|
|
return nfs_stat_to_errno(status);
|
|
|
|
}
|
|
|
|
|
2005-04-17 02:20:36 +04:00
|
|
|
/*
|
|
|
|
* Decode PATHCONF reply
|
|
|
|
*/
|
|
|
|
static int
|
2006-10-20 10:28:48 +04:00
|
|
|
nfs3_xdr_pathconfres(struct rpc_rqst *req, __be32 *p, struct nfs_pathconf *res)
|
2005-04-17 02:20:36 +04:00
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
|
|
|
status = ntohl(*p++);
|
|
|
|
|
|
|
|
p = xdr_decode_post_op_attr(p, res->fattr);
|
|
|
|
if (status != 0)
|
2008-03-31 18:39:06 +04:00
|
|
|
return nfs_stat_to_errno(status);
|
2005-04-17 02:20:36 +04:00
|
|
|
res->max_link = ntohl(*p++);
|
|
|
|
res->max_namelen = ntohl(*p++);
|
|
|
|
|
|
|
|
/* ignore remaining fields */
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:56:30 +03:00
|
|
|
/*
|
|
|
|
* 3.3.20 PATHCONF3res
|
|
|
|
*
|
|
|
|
* struct PATHCONF3resok {
|
|
|
|
* post_op_attr obj_attributes;
|
|
|
|
* uint32 linkmax;
|
|
|
|
* uint32 name_max;
|
|
|
|
* bool no_trunc;
|
|
|
|
* bool chown_restricted;
|
|
|
|
* bool case_insensitive;
|
|
|
|
* bool case_preserving;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* struct PATHCONF3resfail {
|
|
|
|
* post_op_attr obj_attributes;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* union PATHCONF3res switch (nfsstat3 status) {
|
|
|
|
* case NFS3_OK:
|
|
|
|
* PATHCONF3resok resok;
|
|
|
|
* default:
|
|
|
|
* PATHCONF3resfail resfail;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int decode_pathconf3resok(struct xdr_stream *xdr,
|
|
|
|
struct nfs_pathconf *result)
|
|
|
|
{
|
|
|
|
__be32 *p;
|
|
|
|
|
|
|
|
p = xdr_inline_decode(xdr, 4 * 6);
|
|
|
|
if (unlikely(p == NULL))
|
|
|
|
goto out_overflow;
|
|
|
|
result->max_link = be32_to_cpup(p++);
|
|
|
|
result->max_namelen = be32_to_cpup(p);
|
|
|
|
/* ignore remaining fields */
|
|
|
|
return 0;
|
|
|
|
out_overflow:
|
|
|
|
print_overflow_msg(__func__, xdr);
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int nfs3_xdr_dec_pathconf3res(struct rpc_rqst *req, __be32 *p,
|
|
|
|
struct nfs_pathconf *result)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
enum nfs_stat status;
|
|
|
|
int error;
|
|
|
|
|
|
|
|
xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
|
|
|
|
error = decode_nfsstat3(&xdr, &status);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
error = decode_post_op_attr(&xdr, result->fattr);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
if (status != NFS3_OK)
|
|
|
|
goto out_status;
|
|
|
|
error = decode_pathconf3resok(&xdr, result);
|
|
|
|
out:
|
|
|
|
return error;
|
|
|
|
out_status:
|
|
|
|
return nfs_stat_to_errno(status);
|
|
|
|
}
|
|
|
|
|
2005-04-17 02:20:36 +04:00
|
|
|
/*
|
|
|
|
* Decode COMMIT reply
|
|
|
|
*/
|
|
|
|
static int
|
2006-10-20 10:28:48 +04:00
|
|
|
nfs3_xdr_commitres(struct rpc_rqst *req, __be32 *p, struct nfs_writeres *res)
|
2005-04-17 02:20:36 +04:00
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
|
|
|
status = ntohl(*p++);
|
|
|
|
p = xdr_decode_wcc_data(p, res->fattr);
|
|
|
|
if (status != 0)
|
2008-03-31 18:39:06 +04:00
|
|
|
return nfs_stat_to_errno(status);
|
2005-04-17 02:20:36 +04:00
|
|
|
|
|
|
|
res->verf->verifier[0] = *p++;
|
|
|
|
res->verf->verifier[1] = *p++;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:56:30 +03:00
|
|
|
/*
|
|
|
|
* 3.3.21 COMMIT3res
|
|
|
|
*
|
|
|
|
* struct COMMIT3resok {
|
|
|
|
* wcc_data file_wcc;
|
|
|
|
* writeverf3 verf;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* struct COMMIT3resfail {
|
|
|
|
* wcc_data file_wcc;
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* union COMMIT3res switch (nfsstat3 status) {
|
|
|
|
* case NFS3_OK:
|
|
|
|
* COMMIT3resok resok;
|
|
|
|
* default:
|
|
|
|
* COMMIT3resfail resfail;
|
|
|
|
* };
|
|
|
|
*/
|
|
|
|
static int nfs3_xdr_dec_commit3res(struct rpc_rqst *req, __be32 *p,
|
|
|
|
struct nfs_writeres *result)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
enum nfs_stat status;
|
|
|
|
int error;
|
|
|
|
|
|
|
|
xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
|
|
|
|
error = decode_nfsstat3(&xdr, &status);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
error = decode_wcc_data(&xdr, result->fattr);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
if (status != NFS3_OK)
|
|
|
|
goto out_status;
|
|
|
|
error = decode_writeverf3(&xdr, result->verf->verifier);
|
|
|
|
out:
|
|
|
|
return error;
|
|
|
|
out_status:
|
|
|
|
return nfs_stat_to_errno(status);
|
|
|
|
}
|
|
|
|
|
2005-06-22 21:16:27 +04:00
|
|
|
#ifdef CONFIG_NFS_V3_ACL
|
|
|
|
/*
|
|
|
|
* Decode GETACL reply
|
|
|
|
*/
|
|
|
|
static int
|
2006-10-20 10:28:48 +04:00
|
|
|
nfs3_xdr_getaclres(struct rpc_rqst *req, __be32 *p,
|
2005-06-22 21:16:27 +04:00
|
|
|
struct nfs3_getaclres *res)
|
|
|
|
{
|
|
|
|
struct xdr_buf *buf = &req->rq_rcv_buf;
|
|
|
|
int status = ntohl(*p++);
|
|
|
|
struct posix_acl **acl;
|
|
|
|
unsigned int *aclcnt;
|
|
|
|
int err, base;
|
|
|
|
|
|
|
|
if (status != 0)
|
2008-03-31 18:39:06 +04:00
|
|
|
return nfs_stat_to_errno(status);
|
2005-06-22 21:16:27 +04:00
|
|
|
p = xdr_decode_post_op_attr(p, res->fattr);
|
|
|
|
res->mask = ntohl(*p++);
|
|
|
|
if (res->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT))
|
|
|
|
return -EINVAL;
|
|
|
|
base = (char *)p - (char *)req->rq_rcv_buf.head->iov_base;
|
|
|
|
|
|
|
|
acl = (res->mask & NFS_ACL) ? &res->acl_access : NULL;
|
|
|
|
aclcnt = (res->mask & NFS_ACLCNT) ? &res->acl_access_count : NULL;
|
|
|
|
err = nfsacl_decode(buf, base, aclcnt, acl);
|
|
|
|
|
|
|
|
acl = (res->mask & NFS_DFACL) ? &res->acl_default : NULL;
|
|
|
|
aclcnt = (res->mask & NFS_DFACLCNT) ? &res->acl_default_count : NULL;
|
|
|
|
if (err > 0)
|
|
|
|
err = nfsacl_decode(buf, base + err, aclcnt, acl);
|
|
|
|
return (err > 0) ? 0 : err;
|
|
|
|
}
|
|
|
|
|
2010-12-14 17:56:30 +03:00
|
|
|
static inline int decode_getacl3resok(struct xdr_stream *xdr,
|
|
|
|
struct nfs3_getaclres *result)
|
|
|
|
{
|
|
|
|
struct posix_acl **acl;
|
|
|
|
unsigned int *aclcnt;
|
|
|
|
size_t hdrlen;
|
|
|
|
int error;
|
|
|
|
|
|
|
|
error = decode_post_op_attr(xdr, result->fattr);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
error = decode_uint32(xdr, &result->mask);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
error = -EINVAL;
|
|
|
|
if (result->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT))
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
hdrlen = (u8 *)xdr->p - (u8 *)xdr->iov->iov_base;
|
|
|
|
|
|
|
|
acl = NULL;
|
|
|
|
if (result->mask & NFS_ACL)
|
|
|
|
acl = &result->acl_access;
|
|
|
|
aclcnt = NULL;
|
|
|
|
if (result->mask & NFS_ACLCNT)
|
|
|
|
aclcnt = &result->acl_access_count;
|
|
|
|
error = nfsacl_decode(xdr->buf, hdrlen, aclcnt, acl);
|
|
|
|
if (unlikely(error <= 0))
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
acl = NULL;
|
|
|
|
if (result->mask & NFS_DFACL)
|
|
|
|
acl = &result->acl_default;
|
|
|
|
aclcnt = NULL;
|
|
|
|
if (result->mask & NFS_DFACLCNT)
|
|
|
|
aclcnt = &result->acl_default_count;
|
|
|
|
error = nfsacl_decode(xdr->buf, hdrlen + error, aclcnt, acl);
|
|
|
|
if (unlikely(error <= 0))
|
|
|
|
return error;
|
|
|
|
error = 0;
|
|
|
|
out:
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int nfs3_xdr_dec_getacl3res(struct rpc_rqst *req, __be32 *p,
|
|
|
|
struct nfs3_getaclres *result)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
enum nfs_stat status;
|
|
|
|
int error;
|
|
|
|
|
|
|
|
xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
|
|
|
|
error = decode_nfsstat3(&xdr, &status);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
if (status != NFS3_OK)
|
|
|
|
goto out_default;
|
|
|
|
error = decode_getacl3resok(&xdr, result);
|
|
|
|
out:
|
|
|
|
return error;
|
|
|
|
out_default:
|
|
|
|
return nfs_stat_to_errno(status);
|
|
|
|
}
|
|
|
|
|
2005-06-22 21:16:27 +04:00
|
|
|
/*
|
|
|
|
* Decode setacl reply.
|
|
|
|
*/
|
|
|
|
static int
|
2006-10-20 10:28:48 +04:00
|
|
|
nfs3_xdr_setaclres(struct rpc_rqst *req, __be32 *p, struct nfs_fattr *fattr)
|
2005-06-22 21:16:27 +04:00
|
|
|
{
|
|
|
|
int status = ntohl(*p++);
|
|
|
|
|
|
|
|
if (status)
|
2008-03-31 18:39:06 +04:00
|
|
|
return nfs_stat_to_errno(status);
|
2005-06-22 21:16:27 +04:00
|
|
|
xdr_decode_post_op_attr(p, fattr);
|
|
|
|
return 0;
|
|
|
|
}
|
2010-12-14 17:56:30 +03:00
|
|
|
|
|
|
|
static int nfs3_xdr_dec_setacl3res(struct rpc_rqst *req, __be32 *p,
|
|
|
|
struct nfs_fattr *result)
|
|
|
|
{
|
|
|
|
struct xdr_stream xdr;
|
|
|
|
enum nfs_stat status;
|
|
|
|
int error;
|
|
|
|
|
|
|
|
xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
|
|
|
|
error = decode_nfsstat3(&xdr, &status);
|
|
|
|
if (unlikely(error))
|
|
|
|
goto out;
|
|
|
|
if (status != NFS3_OK)
|
|
|
|
goto out_default;
|
|
|
|
error = decode_post_op_attr(&xdr, result);
|
|
|
|
out:
|
|
|
|
return error;
|
|
|
|
out_default:
|
|
|
|
return nfs_stat_to_errno(status);
|
|
|
|
}
|
|
|
|
|
2005-06-22 21:16:27 +04:00
|
|
|
#endif /* CONFIG_NFS_V3_ACL */
|
|
|
|
|
2005-04-17 02:20:36 +04:00
|
|
|
#define PROC(proc, argtype, restype, timer) \
|
|
|
|
[NFS3PROC_##proc] = { \
|
|
|
|
.p_proc = NFS3PROC_##proc, \
|
2010-12-14 17:56:01 +03:00
|
|
|
.p_encode = (kxdrproc_t)nfs3_xdr_enc_##argtype##3args, \
|
2010-12-14 17:56:42 +03:00
|
|
|
.p_decode = (kxdrproc_t)nfs3_xdr_dec_##restype##3res, \
|
2010-12-14 17:56:01 +03:00
|
|
|
.p_arglen = NFS3_##argtype##args_sz, \
|
2010-12-14 17:56:42 +03:00
|
|
|
.p_replen = NFS3_##restype##res_sz, \
|
2006-03-20 21:44:22 +03:00
|
|
|
.p_timer = timer, \
|
|
|
|
.p_statidx = NFS3PROC_##proc, \
|
|
|
|
.p_name = #proc, \
|
2005-04-17 02:20:36 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
struct rpc_procinfo nfs3_procedures[] = {
|
2010-12-14 17:56:42 +03:00
|
|
|
PROC(GETATTR, getattr, getattr, 1),
|
|
|
|
PROC(SETATTR, setattr, setattr, 0),
|
|
|
|
PROC(LOOKUP, lookup, lookup, 2),
|
|
|
|
PROC(ACCESS, access, access, 1),
|
|
|
|
PROC(READLINK, readlink, readlink, 3),
|
|
|
|
PROC(READ, read, read, 3),
|
|
|
|
PROC(WRITE, write, write, 4),
|
|
|
|
PROC(CREATE, create, create, 0),
|
|
|
|
PROC(MKDIR, mkdir, create, 0),
|
|
|
|
PROC(SYMLINK, symlink, create, 0),
|
|
|
|
PROC(MKNOD, mknod, create, 0),
|
|
|
|
PROC(REMOVE, remove, remove, 0),
|
|
|
|
PROC(RMDIR, lookup, setattr, 0),
|
|
|
|
PROC(RENAME, rename, rename, 0),
|
|
|
|
PROC(LINK, link, link, 0),
|
|
|
|
PROC(READDIR, readdir, readdir, 3),
|
|
|
|
PROC(READDIRPLUS, readdirplus, readdir, 3),
|
|
|
|
PROC(FSSTAT, getattr, fsstat, 0),
|
|
|
|
PROC(FSINFO, getattr, fsinfo, 0),
|
|
|
|
PROC(PATHCONF, getattr, pathconf, 0),
|
|
|
|
PROC(COMMIT, commit, commit, 5),
|
2005-04-17 02:20:36 +04:00
|
|
|
};
|
|
|
|
|
|
|
|
struct rpc_version nfs_version3 = {
|
|
|
|
.number = 3,
|
2006-03-24 14:15:34 +03:00
|
|
|
.nrprocs = ARRAY_SIZE(nfs3_procedures),
|
2005-04-17 02:20:36 +04:00
|
|
|
.procs = nfs3_procedures
|
|
|
|
};
|
|
|
|
|
2005-06-22 21:16:27 +04:00
|
|
|
#ifdef CONFIG_NFS_V3_ACL
|
|
|
|
static struct rpc_procinfo nfs3_acl_procedures[] = {
|
|
|
|
[ACLPROC3_GETACL] = {
|
|
|
|
.p_proc = ACLPROC3_GETACL,
|
2010-12-14 17:56:01 +03:00
|
|
|
.p_encode = (kxdrproc_t)nfs3_xdr_enc_getacl3args,
|
2010-12-14 17:56:42 +03:00
|
|
|
.p_decode = (kxdrproc_t)nfs3_xdr_dec_getacl3res,
|
2007-03-30 00:47:53 +04:00
|
|
|
.p_arglen = ACL3_getaclargs_sz,
|
|
|
|
.p_replen = ACL3_getaclres_sz,
|
2005-06-22 21:16:27 +04:00
|
|
|
.p_timer = 1,
|
2006-03-20 21:44:22 +03:00
|
|
|
.p_name = "GETACL",
|
2005-06-22 21:16:27 +04:00
|
|
|
},
|
|
|
|
[ACLPROC3_SETACL] = {
|
|
|
|
.p_proc = ACLPROC3_SETACL,
|
2010-12-14 17:56:01 +03:00
|
|
|
.p_encode = (kxdrproc_t)nfs3_xdr_enc_setacl3args,
|
2010-12-14 17:56:42 +03:00
|
|
|
.p_decode = (kxdrproc_t)nfs3_xdr_dec_setacl3res,
|
2007-03-30 00:47:53 +04:00
|
|
|
.p_arglen = ACL3_setaclargs_sz,
|
|
|
|
.p_replen = ACL3_setaclres_sz,
|
2005-06-22 21:16:27 +04:00
|
|
|
.p_timer = 0,
|
2006-03-20 21:44:22 +03:00
|
|
|
.p_name = "SETACL",
|
2005-06-22 21:16:27 +04:00
|
|
|
},
|
|
|
|
};
|
|
|
|
|
|
|
|
struct rpc_version nfsacl_version3 = {
|
|
|
|
.number = 3,
|
|
|
|
.nrprocs = sizeof(nfs3_acl_procedures)/
|
|
|
|
sizeof(nfs3_acl_procedures[0]),
|
|
|
|
.procs = nfs3_acl_procedures,
|
|
|
|
};
|
|
|
|
#endif /* CONFIG_NFS_V3_ACL */
|