Release 4.11 fs/nfs/nfs3xdr.c

Directory: fs/nfs
/*
 * linux/fs/nfs/nfs3xdr.c
 *
 * XDR functions to encode/decode NFSv3 RPC arguments and results.
 *
 * Copyright (C) 1996, 1997 Olaf Kirch
 */

#include <linux/param.h>
#include <linux/time.h>
#include <linux/mm.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/in.h>
#include <linux/pagemap.h>
#include <linux/proc_fs.h>
#include <linux/kdev_t.h>
#include <linux/sunrpc/clnt.h>
#include <linux/nfs.h>
#include <linux/nfs3.h>
#include <linux/nfs_fs.h>
#include <linux/nfsacl.h>
#include "internal.h"


#define NFSDBG_FACILITY		NFSDBG_XDR

/* Mapping from NFS error code to "errno" error code. */

#define errno_NFSERR_IO		EIO

/*
 * Declare the space requirements for NFS arguments and replies as
 * number of 32bit-words
 */

#define NFS3_fhandle_sz		(1+16)

#define NFS3_fh_sz		(NFS3_fhandle_sz)	
/* shorthand */

#define NFS3_sattr_sz		(15)

#define NFS3_filename_sz	(1+(NFS3_MAXNAMLEN>>2))

#define NFS3_path_sz		(1+(NFS3_MAXPATHLEN>>2))

#define NFS3_fattr_sz		(21)

#define NFS3_cookieverf_sz	(NFS3_COOKIEVERFSIZE>>2)

#define NFS3_wcc_attr_sz	(6)

#define NFS3_pre_op_attr_sz	(1+NFS3_wcc_attr_sz)

#define NFS3_post_op_attr_sz	(1+NFS3_fattr_sz)

#define NFS3_wcc_data_sz	(NFS3_pre_op_attr_sz+NFS3_post_op_attr_sz)

#define NFS3_diropargs_sz	(NFS3_fh_sz+NFS3_filename_sz)


#define NFS3_getattrargs_sz	(NFS3_fh_sz)

#define NFS3_setattrargs_sz	(NFS3_fh_sz+NFS3_sattr_sz+3)

#define NFS3_lookupargs_sz	(NFS3_fh_sz+NFS3_filename_sz)

#define NFS3_accessargs_sz	(NFS3_fh_sz+1)

#define NFS3_readlinkargs_sz	(NFS3_fh_sz)

#define NFS3_readargs_sz	(NFS3_fh_sz+3)

#define NFS3_writeargs_sz	(NFS3_fh_sz+5)

#define NFS3_createargs_sz	(NFS3_diropargs_sz+NFS3_sattr_sz)

#define NFS3_mkdirargs_sz	(NFS3_diropargs_sz+NFS3_sattr_sz)

#define NFS3_symlinkargs_sz	(NFS3_diropargs_sz+1+NFS3_sattr_sz)

#define NFS3_mknodargs_sz	(NFS3_diropargs_sz+2+NFS3_sattr_sz)

#define NFS3_removeargs_sz	(NFS3_fh_sz+NFS3_filename_sz)

#define NFS3_renameargs_sz	(NFS3_diropargs_sz+NFS3_diropargs_sz)

#define NFS3_linkargs_sz		(NFS3_fh_sz+NFS3_diropargs_sz)

#define NFS3_readdirargs_sz	(NFS3_fh_sz+NFS3_cookieverf_sz+3)

#define NFS3_readdirplusargs_sz	(NFS3_fh_sz+NFS3_cookieverf_sz+4)

#define NFS3_commitargs_sz	(NFS3_fh_sz+3)


#define NFS3_getattrres_sz	(1+NFS3_fattr_sz)

#define NFS3_setattrres_sz	(1+NFS3_wcc_data_sz)

#define NFS3_removeres_sz	(NFS3_setattrres_sz)

#define NFS3_lookupres_sz	(1+NFS3_fh_sz+(2 * NFS3_post_op_attr_sz))

#define NFS3_accessres_sz	(1+NFS3_post_op_attr_sz+1)

#define NFS3_readlinkres_sz	(1+NFS3_post_op_attr_sz+1)

#define NFS3_readres_sz		(1+NFS3_post_op_attr_sz+3)

#define NFS3_writeres_sz	(1+NFS3_wcc_data_sz+4)

#define NFS3_createres_sz	(1+NFS3_fh_sz+NFS3_post_op_attr_sz+NFS3_wcc_data_sz)

#define NFS3_renameres_sz	(1+(2 * NFS3_wcc_data_sz))

#define NFS3_linkres_sz		(1+NFS3_post_op_attr_sz+NFS3_wcc_data_sz)

#define NFS3_readdirres_sz	(1+NFS3_post_op_attr_sz+2)

#define NFS3_fsstatres_sz	(1+NFS3_post_op_attr_sz+13)

#define NFS3_fsinfores_sz	(1+NFS3_post_op_attr_sz+12)

#define NFS3_pathconfres_sz	(1+NFS3_post_op_attr_sz+6)

#define NFS3_commitres_sz	(1+NFS3_wcc_data_sz+2)


#define ACL3_getaclargs_sz	(NFS3_fh_sz+1)

#define ACL3_setaclargs_sz	(NFS3_fh_sz+1+ \
                                XDR_QUADLEN(NFS_ACL_INLINE_BUFSIZE))

#define ACL3_getaclres_sz	(1+NFS3_post_op_attr_sz+1+ \
                                XDR_QUADLEN(NFS_ACL_INLINE_BUFSIZE))

#define ACL3_setaclres_sz	(1+NFS3_post_op_attr_sz)

static int nfs3_stat_to_errno(enum nfs_stat);

/*
 * Map file type to S_IFMT bits
 */

static const umode_t nfs_type2fmt[] = {
	[NF3BAD] = 0,
	[NF3REG] = S_IFREG,
	[NF3DIR] = S_IFDIR,
	[NF3BLK] = S_IFBLK,
	[NF3CHR] = S_IFCHR,
	[NF3LNK] = S_IFLNK,
	[NF3SOCK] = S_IFSOCK,
	[NF3FIFO] = S_IFIFO,
};

/*
 * While encoding arguments, set up the reply buffer in advance to
 * receive reply data directly into the page cache.
 */


static void prepare_reply_buffer(struct rpc_rqst *req, struct page **pages,
				 unsigned int base, unsigned int len,
				 unsigned int bufsize)
{
	struct rpc_auth	*auth = req->rq_cred->cr_auth;
	unsigned int replen;

	replen = RPC_REPHDRSIZE + auth->au_rslack + bufsize;
	xdr_inline_pages(&req->rq_rcv_buf, replen << 2, pages, base, len);
}

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/*
 * Handle decode buffer overflows out-of-line.
 */


static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
{
	dprintk("NFS: %s prematurely hit the end of our receive buffer. "
		"Remaining buffer length is %tu words.\n",
		func, xdr->end - xdr->p);
}


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Chuck Lever 33 100.00% 1 100.00%
Total 33 100.00% 1 100.00%

/*
 * 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);
}

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Chuck Lever 26 78.79% 2 50.00%
Linus Torvalds (pre-git) 7 21.21% 2 50.00%
Total 33 100.00% 4 100.00%



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;
}

Contributors
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Chuck Lever 52 81.25% 3 60.00%
Linus Torvalds (pre-git) 12 18.75% 2 40.00%
Total 64 100.00% 5 100.00%



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;
}

Contributors
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Chuck Lever 49 77.78% 2 50.00%
Linus Torvalds (pre-git) 14 22.22% 2 50.00%
Total 63 100.00% 4 100.00%

/*
 * fileid3
 *
 *      typedef uint64 fileid3;
 */


static __be32 *xdr_decode_fileid3(__be32 *p, u64 *fileid)
{
	return xdr_decode_hyper(p, fileid);
}

Contributors
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Chuck Lever 23 100.00% 1 100.00%
Total 23 100.00% 1 100.00%



static int decode_fileid3(struct xdr_stream *xdr, u64 *fileid)
{
	return decode_uint64(xdr, fileid);
}

Contributors
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Chuck Lever 23 100.00% 2 100.00%
Total 23 100.00% 2 100.00%

/*
 * filename3
 *
 *      typedef string filename3<>;
 */


static void encode_filename3(struct xdr_stream *xdr,
			     const char *name, u32 length)
{
	__be32 *p;

	WARN_ON_ONCE(length > NFS3_MAXNAMLEN);
	p = xdr_reserve_space(xdr, 4 + length);
	xdr_encode_opaque(p, name, length);
}

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Chuck Lever 49 98.00% 2 66.67%
Trond Myklebust 1 2.00% 1 33.33%
Total 50 100.00% 3 100.00%



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;
}

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Chuck Lever 130 100.00% 2 100.00%
Total 130 100.00% 2 100.00%

/*
 * nfspath3
 *
 *      typedef string nfspath3<>;
 */


static void encode_nfspath3(struct xdr_stream *xdr, struct page **pages,
			    const u32 length)
{
	encode_uint32(xdr, length);
	xdr_write_pages(xdr, pages, 0, length);
}

Contributors
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Chuck Lever 39 100.00% 3 100.00%
Total 39 100.00% 3 100.00%



static int decode_nfspath3(struct xdr_stream *xdr)
{
	u32 recvd, count;
	__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;
	recvd = xdr_read_pages(xdr, count);
	if (unlikely(count > recvd))
		goto out_cheating;
	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;
}

Contributors
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Chuck Lever 138 96.50% 3 75.00%
Trond Myklebust 5 3.50% 1 25.00%
Total 143 100.00% 4 100.00%

/*
 * cookie3
 *
 *      typedef uint64 cookie3
 */


static __be32 *xdr_encode_cookie3(__be32 *p, u64 cookie)
{
	return xdr_encode_hyper(p, cookie);
}

Contributors
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Chuck Lever 22 100.00% 2 100.00%
Total 22 100.00% 2 100.00%



static int decode_cookie3(struct xdr_stream *xdr, u64 *cookie)
{
	return decode_uint64(xdr, cookie);
}

Contributors
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Chuck Lever 23 100.00% 1 100.00%
Total 23 100.00% 1 100.00%

/*
 * 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);
}

Contributors
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Chuck Lever 33 100.00% 2 100.00%
Total 33 100.00% 2 100.00%



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;
}

Contributors
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Chuck Lever 65 100.00% 2 100.00%
Total 65 100.00% 2 100.00%

/*
 * 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);
}

Contributors
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Chuck Lever 38 100.00% 2 100.00%
Total 38 100.00% 2 100.00%



static int decode_writeverf3(struct xdr_stream *xdr, struct nfs_write_verifier *verifier)
{
	__be32 *p;

	p = xdr_inline_decode(xdr, NFS3_WRITEVERFSIZE);
	if (unlikely(p == NULL))
		goto out_overflow;
	memcpy(verifier->data, p, NFS3_WRITEVERFSIZE);
	return 0;
out_overflow:
	print_overflow_msg(__func__, xdr);
	return -EIO;
}

Contributors
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Chuck Lever 64 94.12% 1 50.00%
Trond Myklebust 4 5.88% 1 50.00%
Total 68 100.00% 2 100.00%

/*
 * size3
 *
 *      typedef uint64 size3;
 */


static __be32 *xdr_decode_size3(__be32 *p, u64 *size)
{
	return xdr_decode_hyper(p, size);
}

Contributors
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Chuck Lever 23 100.00% 1 100.00%
Total 23 100.00% 1 100.00%

/*
 * 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;
}

Contributors
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Chuck Lever 65 100.00% 1 100.00%
Total 65 100.00% 1 100.00%

/*
 * 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)
{
	encode_uint32(xdr, type);
}

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Chuck Lever 22 100.00% 1 100.00%
Total 22 100.00% 1 100.00%



static __be32 *xdr_decode_ftype3(__be32 *p, umode_t *mode)
{
	u32 type;

	type = be32_to_cpup(p++);
	if (type > NF3FIFO)
		type = NF3NON;
	*mode = nfs_type2fmt[type];
	return p;
}

Contributors
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Chuck Lever 47 100.00% 1 100.00%
Total 47 100.00% 1 100.00%

/*
 * 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));
}

Contributors
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Chuck Lever 51 100.00% 2 100.00%
Total 51 100.00% 2 100.00%



static __be32 *xdr_decode_specdata3(__be32 *p, dev_t *rdev)
{
	unsigned int major, minor;

	major = be32_to_cpup(p++);
	minor = be32_to_cpup(p++);
	*rdev = MKDEV(major, minor);
	if (MAJOR(*rdev) != major || MINOR(*rdev) != minor)
		*rdev = 0;
	return p;
}

Contributors
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Chuck Lever 73 100.00% 2 100.00%
Total 73 100.00% 2 100.00%

/*
 * 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;

	WARN_ON_ONCE(fh->size > NFS3_FHSIZE);
	p = xdr_reserve_space(xdr, 4 + fh->size);
	xdr_encode_opaque(p, fh->data, fh->size);
}

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Chuck Lever 55 98.21% 1 50.00%
Trond Myklebust 1 1.79% 1 50.00%
Total 56 100.00% 2 100.00%



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;
}

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Chuck Lever 131 100.00% 1 100.00%
Total 131 100.00% 1 100.00%



static void zero_nfs_fh3(struct nfs_fh *fh)
{
	memset(fh, 0, sizeof(*fh));
}

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/*
 * 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;
}

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Chuck Lever 42 100.00% 1 100.00%
Total 42 100.00% 1 100.00%



static __be32 *xdr_decode_nfstime3(__be32 *p, struct timespec *timep)
{
	timep->tv_sec = be32_to_cpup(p++);
	timep->tv_nsec = be32_to_cpup(p++);
	return p;
}

Contributors
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Chuck Lever 39 100.00% 1 100.00%
Total 39 100.00% 1 100.00%

/*
 * 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);

	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(from_kuid(&init_user_ns, attr->ia_uid));
	} else
		*p++ = xdr_zero;

	if (attr->ia_valid & ATTR_GID) {
		*p++ = xdr_one;
		*p++ = cpu_to_be32(from_kgid(&init_user_ns, 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;
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 353 96.71% 1 50.00%
Eric W. Biedermann 12 3.29% 1 50.00%
Total 365 100.00% 2 100.00%

/*
 * 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)
{
	umode_t fmode;
	__be32 *p;

	p = xdr_inline_decode(xdr, NFS3_fattr_sz << 2);
	if (unlikely(p == NULL))
		goto out_overflow;

	p = xdr_decode_ftype3(p, &fmode);

	fattr->mode = (be32_to_cpup(p++) & ~S_IFMT) | fmode;
	fattr->nlink = be32_to_cpup(p++);
	fattr->uid = make_kuid(&init_user_ns, be32_to_cpup(p++));
	if (!uid_valid(fattr->uid))
		goto out_uid;
	fattr->gid = make_kgid(&init_user_ns, be32_to_cpup(p++));
	if (!gid_valid(fattr->gid))
		goto out_gid;

	p = xdr_decode_size3(p, &fattr->size);
	p = xdr_decode_size3(p, &fattr->du.nfs3.used);
	p = xdr_decode_specdata3(p, &fattr->rdev);

	p = xdr_decode_hyper(p, &fattr->fsid.major);
	fattr->fsid.minor = 0;

	p = xdr_decode_fileid3(p, &fattr->fileid);
	p = xdr_decode_nfstime3(p, &fattr->atime);
	p = xdr_decode_nfstime3(p, &fattr->mtime);
	xdr_decode_nfstime3(p, &fattr->ctime);
	fattr->change_attr = nfs_timespec_to_change_attr(&fattr->ctime);

	fattr->valid |= NFS_ATTR_FATTR_V3;
	return 0;
out_uid:
	dprintk("NFS: returned invalid uid\n");
	return -EINVAL;
out_gid:
	dprintk("NFS: returned invalid gid\n");
	return -EINVAL;
out_overflow:
	print_overflow_msg(__func__, xdr);
	return -EIO;
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 233 76.39% 2 50.00%
Eric W. Biedermann 60 19.67% 1 25.00%
Trond Myklebust 12 3.93% 1 25.00%
Total 305 100.00% 4 100.00%

/*
 * 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;
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 72 100.00% 1 100.00%
Total 72 100.00% 1 100.00%

/*
 * 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;

	fattr->valid |= NFS_ATTR_FATTR_PRESIZE
		| NFS_ATTR_FATTR_PRECHANGE
		| NFS_ATTR_FATTR_PREMTIME
		| NFS_ATTR_FATTR_PRECTIME;

	p = xdr_decode_size3(p, &fattr->pre_size);
	p = xdr_decode_nfstime3(p, &fattr->pre_mtime);
	xdr_decode_nfstime3(p, &fattr->pre_ctime);
	fattr->pre_change_attr = nfs_timespec_to_change_attr(&fattr->pre_ctime);

	return 0;
out_overflow:
	print_overflow_msg(__func__, xdr);
	return -EIO;
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 103 88.03% 2 66.67%
Trond Myklebust 14 11.97% 1 33.33%
Total 117 100.00% 3 100.00%

/*
 * 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;
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 72 100.00% 1 100.00%
Total 72 100.00% 1 100.00%



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;
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 52 100.00% 1 100.00%
Total 52 100.00% 1 100.00%

/*
 * 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;
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 75 100.00% 1 100.00%
Total 75 100.00% 1 100.00%

/*
 * 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);
}


Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 41 100.00% 1 100.00%
Total 41 100.00% 1 100.00%

/*
 * NFSv3 XDR encode functions
 *
 * NFSv3 argument types are defined in section 3.3 of RFC 1813:
 * "NFS Version 3 Protocol Specification".
 */

/*
 * 3.3.1  GETATTR3args
 *
 *      struct GETATTR3args {
 *              nfs_fh3  object;
 *      };
 */


static void nfs3_xdr_enc_getattr3args(struct rpc_rqst *req,
				      struct xdr_stream *xdr,
				      const struct nfs_fh *fh)
{
	encode_nfs_fh3(xdr, fh);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 29 100.00% 2 100.00%
Total 29 100.00% 2 100.00%

/*
 * 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;
		xdr_encode_nfstime3(p, &args->guardtime);
	} else {
		p = xdr_reserve_space(xdr, 4);
		*p = xdr_zero;
	}
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 73 100.00% 1 100.00%
Total 73 100.00% 1 100.00%



static void nfs3_xdr_enc_setattr3args(struct rpc_rqst *req,
				      struct xdr_stream *xdr,
				      const struct nfs3_sattrargs *args)
{
	encode_nfs_fh3(xdr, args->fh);
	encode_sattr3(xdr, args->sattr);
	encode_sattrguard3(xdr, args);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 47 100.00% 2 100.00%
Total 47 100.00% 2 100.00%

/*
 * 3.3.3  LOOKUP3args
 *
 *      struct LOOKUP3args {
 *              diropargs3  what;
 *      };
 */


static void nfs3_xdr_enc_lookup3args(struct rpc_rqst *req,
				     struct xdr_stream *xdr,
				     const struct nfs3_diropargs *args)
{
	encode_diropargs3(xdr, args->fh, args->name, args->len);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 39 100.00% 2 100.00%
Total 39 100.00% 2 100.00%

/*
 * 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);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 35 100.00% 1 100.00%
Total 35 100.00% 1 100.00%



static void nfs3_xdr_enc_access3args(struct rpc_rqst *req,
				     struct xdr_stream *xdr,
				     const struct nfs3_accessargs *args)
{
	encode_access3args(xdr, args);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 29 100.00% 2 100.00%
Total 29 100.00% 2 100.00%

/*
 * 3.3.5  READLINK3args
 *
 *      struct READLINK3args {
 *              nfs_fh3 symlink;
 *      };
 */


static void nfs3_xdr_enc_readlink3args(struct rpc_rqst *req,
				       struct xdr_stream *xdr,
				       const struct nfs3_readlinkargs *args)
{
	encode_nfs_fh3(xdr, args->fh);
	prepare_reply_buffer(req, args->pages, args->pgbase,
					args->pglen, NFS3_readlinkres_sz);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 50 100.00% 2 100.00%
Total 50 100.00% 2 100.00%

/*
 * 3.3.6  READ3args
 *
 *      struct READ3args {
 *              nfs_fh3         file;
 *              offset3         offset;
 *              count3          count;
 *      };
 */


static void encode_read3args(struct xdr_stream *xdr,
			     const struct nfs_pgio_args *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);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 61 98.39% 1 50.00%
Anna Schumaker 1 1.61% 1 50.00%
Total 62 100.00% 2 100.00%



static void nfs3_xdr_enc_read3args(struct rpc_rqst *req,
				   struct xdr_stream *xdr,
				   const struct nfs_pgio_args *args)
{
	encode_read3args(xdr, args);
	prepare_reply_buffer(req, args->pages, args->pgbase,
					args->count, NFS3_readres_sz);
	req->rq_rcv_buf.flags |= XDRBUF_READ;
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 55 98.21% 2 66.67%
Anna Schumaker 1 1.79% 1 33.33%
Total 56 100.00% 3 100.00%

/*
 * 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_pgio_args *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);
	*p++ = cpu_to_be32(args->stable);
	*p = cpu_to_be32(args->count);
	xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 104 99.05% 1 50.00%
Anna Schumaker 1 0.95% 1 50.00%
Total 105 100.00% 2 100.00%



static void nfs3_xdr_enc_write3args(struct rpc_rqst *req,
				    struct xdr_stream *xdr,
				    const struct nfs_pgio_args *args)
{
	encode_write3args(xdr, args);
	xdr->buf->flags |= XDRBUF_WRITE;
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 36 97.30% 2 66.67%
Anna Schumaker 1 2.70% 1 33.33%
Total 37 100.00% 3 100.00%

/*
 * 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();
	}
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 67 100.00% 1 100.00%
Total 67 100.00% 1 100.00%



static void nfs3_xdr_enc_create3args(struct rpc_rqst *req,
				     struct xdr_stream *xdr,
				     const struct nfs3_createargs *args)
{
	encode_diropargs3(xdr, args->fh, args->name, args->len);
	encode_createhow3(xdr, args);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 46 100.00% 2 100.00%
Total 46 100.00% 2 100.00%

/*
 * 3.3.9  MKDIR3args
 *
 *      struct MKDIR3args {
 *              diropargs3      where;
 *              sattr3          attributes;
 *      };
 */


static void nfs3_xdr_enc_mkdir3args(struct rpc_rqst *req,
				    struct xdr_stream *xdr,
				    const struct nfs3_mkdirargs *args)
{
	encode_diropargs3(xdr, args->fh, args->name, args->len);
	encode_sattr3(xdr, args->sattr);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 48 100.00% 2 100.00%
Total 48 100.00% 2 100.00%

/*
 * 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);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 39 100.00% 1 100.00%
Total 39 100.00% 1 100.00%



static void nfs3_xdr_enc_symlink3args(struct rpc_rqst *req,
				      struct xdr_stream *xdr,
				      const struct nfs3_symlinkargs *args)
{
	encode_diropargs3(xdr, args->fromfh, args->fromname, args->fromlen);
	encode_symlinkdata3(xdr, args);
	xdr->buf->flags |= XDRBUF_WRITE;
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 54 100.00% 3 100.00%
Total 54 100.00% 3 100.00%

/*
 * 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);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 35 100.00% 1 100.00%
Total 35 100.00% 1 100.00%



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();
	}
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 75 100.00% 1 100.00%
Total 75 100.00% 1 100.00%



static void nfs3_xdr_enc_mknod3args(struct rpc_rqst *req,
				    struct xdr_stream *xdr,
				    const struct nfs3_mknodargs *args)
{
	encode_diropargs3(xdr, args->fh, args->name, args->len);
	encode_mknoddata3(xdr, args);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 46 100.00% 2 100.00%
Total 46 100.00% 2 100.00%

/*
 * 3.3.12  REMOVE3args
 *
 *      struct REMOVE3args {
 *              diropargs3  object;
 *      };
 */


static void nfs3_xdr_enc_remove3args(struct rpc_rqst *req,
				     struct xdr_stream *xdr,
				     const struct nfs_removeargs *args)
{
	encode_diropargs3(xdr, args->fh, args->name.name, args->name.len);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 43 100.00% 2 100.00%
Total 43 100.00% 2 100.00%

/*
 * 3.3.14  RENAME3args
 *
 *      struct RENAME3args {
 *              diropargs3      from;
 *              diropargs3      to;
 *      };
 */


static void nfs3_xdr_enc_rename3args(struct rpc_rqst *req,
				     struct xdr_stream *xdr,
				     const struct nfs_renameargs *args)
{
	const struct qstr *old = args->old_name;
	const struct qstr *new = args->new_name;

	encode_diropargs3(xdr, args->old_dir, old->name, old->len);
	encode_diropargs3(xdr, args->new_dir, new->name, new->len);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 76 100.00% 3 100.00%
Total 76 100.00% 3 100.00%

/*
 * 3.3.15  LINK3args
 *
 *      struct LINK3args {
 *              nfs_fh3         file;
 *              diropargs3      link;
 *      };
 */


static void nfs3_xdr_enc_link3args(struct rpc_rqst *req,
				   struct xdr_stream *xdr,
				   const struct nfs3_linkargs *args)
{
	encode_nfs_fh3(xdr, args->fromfh);
	encode_diropargs3(xdr, args->tofh, args->toname, args->tolen);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 48 100.00% 4 100.00%
Total 48 100.00% 4 100.00%

/*
 * 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);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 75 100.00% 2 100.00%
Total 75 100.00% 2 100.00%



static void nfs3_xdr_enc_readdir3args(struct rpc_rqst *req,
				      struct xdr_stream *xdr,
				      const struct nfs3_readdirargs *args)
{
	encode_readdir3args(xdr, args);
	prepare_reply_buffer(req, args->pages, 0,
				args->count, NFS3_readdirres_sz);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 46 100.00% 3 100.00%
Total 46 100.00% 3 100.00%

/*
 * 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);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 91 100.00% 2 100.00%
Total 91 100.00% 2 100.00%



static void nfs3_xdr_enc_readdirplus3args(struct rpc_rqst *req,
					  struct xdr_stream *xdr,
					  const struct nfs3_readdirargs *args)
{
	encode_readdirplus3args(xdr, args);
	prepare_reply_buffer(req, args->pages, 0,
				args->count, NFS3_readdirres_sz);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 46 100.00% 3 100.00%
Total 46 100.00% 3 100.00%

/*
 * 3.3.21  COMMIT3args
 *
 *      struct COMMIT3args {
 *              nfs_fh3         file;
 *              offset3         offset;
 *              count3          count;
 *      };
 */


static void encode_commit3args(struct xdr_stream *xdr,
			       const struct nfs_commitargs *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);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 61 98.39% 4 80.00%
Fred Isaman 1 1.61% 1 20.00%
Total 62 100.00% 5 100.00%



static void nfs3_xdr_enc_commit3args(struct rpc_rqst *req,
				     struct xdr_stream *xdr,
				     const struct nfs_commitargs *args)
{
	encode_commit3args(xdr, args);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 28 96.55% 3 75.00%
Fred Isaman 1 3.45% 1 25.00%
Total 29 100.00% 4 100.00%

#ifdef CONFIG_NFS_V3_ACL



static void nfs3_xdr_enc_getacl3args(struct rpc_rqst *req,
				     struct xdr_stream *xdr,
				     const struct nfs3_getaclargs *args)
{
	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);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 69 100.00% 3 100.00%
Total 69 100.00% 3 100.00%



static void nfs3_xdr_enc_setacl3args(struct rpc_rqst *req,
				     struct xdr_stream *xdr,
				     const struct nfs3_setaclargs *args)
{
	unsigned int base;
	int error;

	encode_nfs_fh3(xdr, NFS_FH(args->inode));
	encode_uint32(xdr, args->mask);

	base = req->rq_slen;
	if (args->npages != 0)
		xdr_write_pages(xdr, args->pages, 0, args->len);
	else
		xdr_reserve_space(xdr, args->len);

	error = nfsacl_encode(xdr->buf, base, args->inode,
			    (args->mask & NFS_ACL) ?
			    args->acl_access : NULL, 1, 0);
	/* FIXME: this is just broken */
	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);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 171 99.42% 5 83.33%
Trond Myklebust 1 0.58% 1 16.67%
Total 172 100.00% 6 100.00%

#endif  /* CONFIG_NFS_V3_ACL */

/*
 * NFSv3 XDR decode functions
 *
 * NFSv3 result types are defined in section 3.3 of RFC 1813:
 * "NFS Version 3 Protocol Specification".
 */

/*
 * 3.3.1  GETATTR3res
 *
 *      struct GETATTR3resok {
 *              fattr3          obj_attributes;
 *      };
 *
 *      union GETATTR3res switch (nfsstat3 status) {
 *      case NFS3_OK:
 *              GETATTR3resok  resok;
 *      default:
 *              void;
 *      };
 */


static int nfs3_xdr_dec_getattr3res(struct rpc_rqst *req,
				    struct xdr_stream *xdr,
				    struct nfs_fattr *result)
{
	enum nfs_stat status;
	int error;

	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 nfs3_stat_to_errno(status);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 78 98.73% 3 75.00%
Bryan Schumaker 1 1.27% 1 25.00%
Total 79 100.00% 4 100.00%

/*
 * 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,
				    struct xdr_stream *xdr,
				    struct nfs_fattr *result)
{
	enum nfs_stat status;
	int error;

	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 nfs3_stat_to_errno(status);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 88 98.88% 4 80.00%
Bryan Schumaker 1 1.12% 1 20.00%
Total 89 100.00% 5 100.00%

/*
 * 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,
				   struct xdr_stream *xdr,
				   struct nfs3_diropres *result)
{
	enum nfs_stat status;
	int error;

	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 nfs3_stat_to_errno(status);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 143 99.31% 4 80.00%
Bryan Schumaker 1 0.69% 1 20.00%
Total 144 100.00% 5 100.00%

/*
 * 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,
				   struct xdr_stream *xdr,
				   struct nfs3_accessres *result)
{
	enum nfs_stat status;
	int error;

	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 nfs3_stat_to_errno(status);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 102 99.03% 3 75.00%
Bryan Schumaker 1 0.97% 1 25.00%
Total 103 100.00% 4 100.00%

/*
 * 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,
				     struct xdr_stream *xdr,
				     struct nfs_fattr *result)
{
	enum nfs_stat status;
	int error;

	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 nfs3_stat_to_errno(status);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 90 93.75% 5 71.43%
Linus Torvalds (pre-git) 5 5.21% 1 14.29%
Bryan Schumaker 1 1.04% 1 14.29%
Total 96 100.00% 7 100.00%

/*
 * 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_pgio_res *result)
{
	u32 eof, count, ocount, recvd;
	__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;
	recvd = xdr_read_pages(xdr, count);
	if (unlikely(count > recvd))
		goto out_cheating;
out:
	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;
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 156 86.67% 4 44.44%
Trond Myklebust 14 7.78% 2 22.22%
Linus Torvalds (pre-git) 9 5.00% 2 22.22%
Anna Schumaker 1 0.56% 1 11.11%
Total 180 100.00% 9 100.00%



static int nfs3_xdr_dec_read3res(struct rpc_rqst *req, struct xdr_stream *xdr,
				 struct nfs_pgio_res *result)
{
	enum nfs_stat status;
	int error;

	error = decode_nfsstat3(xdr, &status);
	if (unlikely(error))
		goto out;
	error = decode_post_op_attr(xdr, result->fattr);
	if (unlikely(error))
		goto out;
	result->op_status = status;
	if (status != NFS3_OK)
		goto out_status;
	error = decode_read3resok(xdr, result);
out:
	return error;
out_status:
	return nfs3_stat_to_errno(status);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 98 92.45% 3 50.00%
Peng Tao 6 5.66% 1 16.67%
Bryan Schumaker 1 0.94% 1 16.67%
Anna Schumaker 1 0.94% 1 16.67%
Total 106 100.00% 6 100.00%

/*
 * 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_pgio_res *result)
{
	__be32 *p;

	p = xdr_inline_decode(xdr, 4 + 4);
	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;
	if (decode_writeverf3(xdr, &result->verf->verifier))
		goto out_eio;
	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);
out_eio:
	return -EIO;
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 98 72.59% 4 40.00%
Linus Torvalds (pre-git) 22 16.30% 2 20.00%
Trond Myklebust 13 9.63% 2 20.00%
Anna Schumaker 1 0.74% 1 10.00%
Talpey, Thomas 1 0.74% 1 10.00%
Total 135 100.00% 10 100.00%



static int nfs3_xdr_dec_write3res(struct rpc_rqst *req, struct xdr_stream *xdr,
				  struct nfs_pgio_res *result)
{
	enum nfs_stat status;
	int error;

	error = decode_nfsstat3(xdr, &status);
	if (unlikely(error))
		goto out;
	error = decode_wcc_data(xdr, result->fattr);
	if (unlikely(error))
		goto out;
	result->op_status = status;
	if (status != NFS3_OK)
		goto out_status;
	error = decode_write3resok(xdr, result);
out:
	return error;
out_status:
	return nfs3_stat_to_errno(status);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 75 70.75% 3 37.50%
Linus Torvalds (pre-git) 23 21.70% 2 25.00%
Peng Tao 6 5.66% 1 12.50%
Anna Schumaker 1 0.94% 1 12.50%
Bryan Schumaker 1 0.94% 1 12.50%
Total 106 100.00% 8 100.00%

/*
 * 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;
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 81 84.38% 3 60.00%
Linus Torvalds (pre-git) 15 15.62% 2 40.00%
Total 96 100.00% 5 100.00%



static int nfs3_xdr_dec_create3res(struct rpc_rqst *req,
				   struct xdr_stream *xdr,
				   struct nfs3_diropres *result)
{
	enum nfs_stat status;
	int error;

	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 nfs3_stat_to_errno(status);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 83 83.00% 4 57.14%
Linus Torvalds (pre-git) 16 16.00% 2 28.57%
Bryan Schumaker 1 1.00% 1 14.29%
Total 100 100.00% 7 100.00%

/*
 * 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,
				   struct xdr_stream *xdr,
				   struct nfs_removeres *result)
{
	enum nfs_stat status;
	int error;

	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 nfs3_stat_to_errno(status);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 81 89.01% 4 57.14%
Linus Torvalds (pre-git) 9 9.89% 2 28.57%
Bryan Schumaker 1 1.10% 1 14.29%
Total 91 100.00% 7 100.00%

/*
 * 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,
				   struct xdr_stream *xdr,
				   struct nfs_renameres *result)
{
	enum nfs_stat status;
	int error;

	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 nfs3_stat_to_errno(status);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 98 87.50% 5 62.50%
Linus Torvalds (pre-git) 7 6.25% 1 12.50%
Andreas Gruenbacher 6 5.36% 1 12.50%
Bryan Schumaker 1 0.89% 1 12.50%
Total 112 100.00% 8 100.00%

/*
 * 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, struct xdr_stream *xdr,
				 struct nfs3_linkres *result)
{
	enum nfs_stat status;
	int error;

	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 nfs3_stat_to_errno(status);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 96 85.71% 3 50.00%
Andreas Gruenbacher 14 12.50% 1 16.67%
Bryan Schumaker 1 0.89% 1 16.67%
Trond Myklebust 1 0.89% 1 16.67%
Total 112 100.00% 6 100.00%

/**
 * 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
 * @plus: boolean indicating whether this should be a readdirplus entry
 *
 * Returns zero if successful, otherwise a negative errno value is
 * returned.
 *
 * This function is not invoked during READDIR reply decoding, but
 * rather whenever an application invokes the getdents(2) system call
 * on a directory already in our cache.
 *
 * 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;
 *      };
 */


int nfs3_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
		       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 -EAGAIN;
		entry->eof = 1;
		return -EBADCOOKIE;
	}

	error = decode_fileid3(xdr, &entry->ino);
	if (unlikely(error))
		return error;

	error = decode_inline_filename3(xdr, &entry->name, &entry->len);
	if (unlikely(error))
		return error;

	entry->prev_cookie = entry->cookie;
	error = decode_cookie3(xdr, &entry->cookie);
	if (unlikely(error))
		return error;

	entry->d_type = DT_UNKNOWN;

	if (plus) {
		entry->fattr->valid = 0;
		error = decode_post_op_attr(xdr, entry->fattr);
		if (unlikely(error))
			return error;
		if (entry->fattr->valid & NFS_ATTR_FATTR_V3)
			entry->d_type = nfs_umode_to_dtype(entry->fattr->mode);

		if (entry->fattr->fileid != entry->ino) {
			entry->fattr->mounted_on_fileid = entry->ino;
			entry->fattr->valid |= NFS_ATTR_FATTR_MOUNTED_ON_FILEID;
		}

		/* 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 error;
			}
		} else
			zero_nfs_fh3(entry->fh);
	}

	return 0;

out_overflow:
	print_overflow_msg(__func__, xdr);
	return -EAGAIN;
out_truncated:
	dprintk("NFS: directory entry contains invalid file handle\n");
	*entry = old;
	return -EAGAIN;
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 333 86.95% 3 50.00%
Trond Myklebust 35 9.14% 2 33.33%
Andreas Gruenbacher 15 3.92% 1 16.67%
Total 383 100.00% 6 100.00%

/*
 * 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)
{
	return xdr_read_pages(xdr, xdr->buf->page_len);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 8 34.78% 1 25.00%
Andreas Gruenbacher 8 34.78% 1 25.00%
Trond Myklebust 5 21.74% 1 25.00%
Linus Torvalds (pre-git) 2 8.70% 1 25.00%
Total 23 100.00% 4 100.00%



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;
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 44 59.46% 1 33.33%
Linus Torvalds (pre-git) 30 40.54% 2 66.67%
Total 74 100.00% 3 100.00%



static int nfs3_xdr_dec_readdir3res(struct rpc_rqst *req,
				    struct xdr_stream *xdr,
				    struct nfs3_readdirres *result)
{
	enum nfs_stat status;
	int error;

	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 nfs3_stat_to_errno(status);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 53 53.00% 3 50.00%
Linus Torvalds (pre-git) 37 37.00% 1 16.67%
Trond Myklebust 9 9.00% 1 16.67%
Bryan Schumaker 1 1.00% 1 16.67%
Total 100 100.00% 6 100.00%

/*
 * 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;
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 97 73.48% 2 66.67%
Linus Torvalds (pre-git) 35 26.52% 1 33.33%
Total 132 100.00% 3 100.00%



static int nfs3_xdr_dec_fsstat3res(struct rpc_rqst *req,
				   struct xdr_stream *xdr,
				   struct nfs_fsstat *result)
{
	enum nfs_stat status;
	int error;

	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 nfs3_stat_to_errno(status);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 58 58.00% 3 60.00%
Linus Torvalds (pre-git) 41 41.00% 1 20.00%
Bryan Schumaker 1 1.00% 1 20.00%
Total 100 100.00% 5 100.00%

/*
 * 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_nfstime3(p, &result->time_delta);

	/* ignore properties */
	result->lease_time = 0;
	return 0;
out_overflow:
	print_overflow_msg(__func__, xdr);
	return -EIO;
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 109 66.46% 3 60.00%
Linus Torvalds (pre-git) 54 32.93% 1 20.00%
Trond Myklebust 1 0.61% 1 20.00%
Total 164 100.00% 5 100.00%



static int nfs3_xdr_dec_fsinfo3res(struct rpc_rqst *req,
				   struct xdr_stream *xdr,
				   struct nfs_fsinfo *result)
{
	enum nfs_stat status;
	int error;

	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 nfs3_stat_to_errno(status);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 87 87.00% 3 42.86%
Ricardo Labiaga 6 6.00% 1 14.29%
Trond Myklebust 3 3.00% 1 14.29%
Linus Torvalds (pre-git) 3 3.00% 1 14.29%
Bryan Schumaker 1 1.00% 1 14.29%
Total 100 100.00% 7 100.00%

/*
 * 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;
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 47 59.49% 2 40.00%
Andreas Gruenbacher 21 26.58% 1 20.00%
Linus Torvalds (pre-git) 11 13.92% 2 40.00%
Total 79 100.00% 5 100.00%



static int nfs3_xdr_dec_pathconf3res(struct rpc_rqst *req,
				     struct xdr_stream *xdr,
				     struct nfs_pathconf *result)
{
	enum nfs_stat status;
	int error;

	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 nfs3_stat_to_errno(status);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 67 67.00% 3 60.00%
Andreas Gruenbacher 32 32.00% 1 20.00%
Bryan Schumaker 1 1.00% 1 20.00%
Total 100 100.00% 5 100.00%

/*
 * 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,
				   struct xdr_stream *xdr,
				   struct nfs_commitres *result)
{
	enum nfs_stat status;
	int error;

	error = decode_nfsstat3(xdr, &status);
	if (unlikely(error))
		goto out;
	error = decode_wcc_data(xdr, result->fattr);
	if (unlikely(error))
		goto out;
	result->op_status = status;
	if (status != NFS3_OK)
		goto out_status;
	error = decode_writeverf3(xdr, &result->verf->verifier);
out:
	return error;
out_status:
	return nfs3_stat_to_errno(status);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 77 69.37% 3 37.50%
Andreas Gruenbacher 25 22.52% 1 12.50%
Peng Tao 6 5.41% 1 12.50%
Bryan Schumaker 1 0.90% 1 12.50%
Fred Isaman 1 0.90% 1 12.50%
Trond Myklebust 1 0.90% 1 12.50%
Total 111 100.00% 8 100.00%

#ifdef CONFIG_NFS_V3_ACL



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 = xdr_stream_pos(xdr);

	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;
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 202 80.80% 1 25.00%
Andreas Gruenbacher 35 14.00% 1 25.00%
Linus Torvalds (pre-git) 10 4.00% 1 25.00%
Trond Myklebust 3 1.20% 1 25.00%
Total 250 100.00% 4 100.00%



static int nfs3_xdr_dec_getacl3res(struct rpc_rqst *req,
				   struct xdr_stream *xdr,
				   struct nfs3_getaclres *result)
{
	enum nfs_stat status;
	int error;

	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 nfs3_stat_to_errno(status);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 76 96.20% 2 40.00%
Linus Torvalds (pre-git) 2 2.53% 2 40.00%
Bryan Schumaker 1 1.27% 1 20.00%
Total 79 100.00% 5 100.00%



static int nfs3_xdr_dec_setacl3res(struct rpc_rqst *req,
				   struct xdr_stream *xdr,
				   struct nfs_fattr *result)
{
	enum nfs_stat status;
	int error;

	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 nfs3_stat_to_errno(status);
}

Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 78 98.73% 2 66.67%
Bryan Schumaker 1 1.27% 1 33.33%
Total 79 100.00% 3 100.00%

#endif  /* CONFIG_NFS_V3_ACL */


/*
 * We need to translate between nfs status return values and
 * the local errno values which may not be the same.
 */
static const struct {
	
int stat;
	
int errno;
} 
nfs_errtbl[] = {
	{ NFS_OK,		0		},
	{ NFSERR_PERM,		-EPERM		},
	{ NFSERR_NOENT,		-ENOENT		},
	{ NFSERR_IO,		-errno_NFSERR_IO},
	{ NFSERR_NXIO,		-ENXIO		},
/*      { NFSERR_EAGAIN,        -EAGAIN         }, */
	{ NFSERR_ACCES,		-EACCES		},
	{ NFSERR_EXIST,		-EEXIST		},
	{ NFSERR_XDEV,		-EXDEV		},
	{ NFSERR_NODEV,		-ENODEV		},
	{ NFSERR_NOTDIR,	-ENOTDIR	},
	{ NFSERR_ISDIR,		-EISDIR		},
	{ NFSERR_INVAL,		-EINVAL		},
	{ NFSERR_FBIG,		-EFBIG		},
	{ NFSERR_NOSPC,		-ENOSPC		},
	{ NFSERR_ROFS,		-EROFS		},
	{ NFSERR_MLINK,		-EMLINK		},
	{ NFSERR_NAMETOOLONG,	-ENAMETOOLONG	},
	{ NFSERR_NOTEMPTY,	-ENOTEMPTY	},
	{ NFSERR_DQUOT,		-EDQUOT		},
	{ NFSERR_STALE,		-ESTALE		},
	{ NFSERR_REMOTE,	-EREMOTE	},
#ifdef EWFLUSH
	{ NFSERR_WFLUSH,	-EWFLUSH	},
#endif
	{ NFSERR_BADHANDLE,	-EBADHANDLE	},
	{ NFSERR_NOT_SYNC,	-ENOTSYNC	},
	{ NFSERR_BAD_COOKIE,	-EBADCOOKIE	},
	{ NFSERR_NOTSUPP,	-ENOTSUPP	},
	{ NFSERR_TOOSMALL,	-ETOOSMALL	},
	{ NFSERR_SERVERFAULT,	-EREMOTEIO	},
	{ NFSERR_BADTYPE,	-EBADTYPE	},
	{ NFSERR_JUKEBOX,	-EJUKEBOX	},
	{ -1,			-EIO		}
};

/**
 * nfs3_stat_to_errno - convert an NFS status code to a local errno
 * @status: NFS status code to convert
 *
 * Returns a local errno value, or -EIO if the NFS status code is
 * not recognized.  This function is used jointly by NFSv2 and NFSv3.
 */


static int nfs3_stat_to_errno(enum nfs_stat status)
{
	int i;

	for (i = 0; nfs_errtbl[i].stat != -1; i++) {
		if (nfs_errtbl[i].stat == (int)status)
			return nfs_errtbl[i].errno;
	}
	dprintk("NFS: Unrecognized nfs status value: %u\n", status);
	return nfs_errtbl[i].errno;
}


Contributors
Person Tokens Prop Commits CommitProp
Bryan Schumaker 71 100.00% 1 100.00%
Total 71 100.00% 1 100.00%


#define PROC(proc, argtype, restype, timer)				\
[NFS3PROC_##proc] = {                                                   \
        .p_proc      = NFS3PROC_##proc,                                 \
        .p_encode    = (kxdreproc_t)nfs3_xdr_enc_##argtype##3args,      \
        .p_decode    = (kxdrdproc_t)nfs3_xdr_dec_##restype##3res,       \
        .p_arglen    = NFS3_##argtype##args_sz,                         \
        .p_replen    = NFS3_##restype##res_sz,                          \
        .p_timer     = timer,                                           \
        .p_statidx   = NFS3PROC_##proc,                                 \
        .p_name      = #proc,                                           \
        }


struct rpc_procinfo	nfs3_procedures[] = {
	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),
};


const struct rpc_version nfs_version3 = {
	.number			= 3,
	.nrprocs		= ARRAY_SIZE(nfs3_procedures),
	.procs			= nfs3_procedures
};

#ifdef CONFIG_NFS_V3_ACL

static struct rpc_procinfo	nfs3_acl_procedures[] = {
	[ACLPROC3_GETACL] = {
		.p_proc = ACLPROC3_GETACL,
		.p_encode = (kxdreproc_t)nfs3_xdr_enc_getacl3args,
		.p_decode = (kxdrdproc_t)nfs3_xdr_dec_getacl3res,
		.p_arglen = ACL3_getaclargs_sz,
		.p_replen = ACL3_getaclres_sz,
		.p_timer = 1,
		.p_name = "GETACL",
        },
	[ACLPROC3_SETACL] = {
		.p_proc = ACLPROC3_SETACL,
		.p_encode = (kxdreproc_t)nfs3_xdr_enc_setacl3args,
		.p_decode = (kxdrdproc_t)nfs3_xdr_dec_setacl3res,
		.p_arglen = ACL3_setaclargs_sz,
		.p_replen = ACL3_setaclres_sz,
		.p_timer = 0,
		.p_name = "SETACL",
        },
};


const 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 */
Overall Contributors
Person Tokens Prop Commits CommitProp
Chuck Lever 7045 80.35% 17 34.69%
Linus Torvalds (pre-git) 704 8.03% 2 4.08%
Bryan Schumaker 338 3.85% 1 2.04%
Andreas Gruenbacher 288 3.28% 1 2.04%
Trond Myklebust 271 3.09% 16 32.65%
Eric W. Biedermann 72 0.82% 1 2.04%
Peng Tao 18 0.21% 1 2.04%
Anna Schumaker 8 0.09% 2 4.08%
Ricardo Labiaga 6 0.07% 1 2.04%
Art Haas 6 0.07% 1 2.04%
Dave Jones 4 0.05% 2 4.08%
David Howells 3 0.03% 1 2.04%
Fred Isaman 3 0.03% 1 2.04%
Talpey, Thomas 1 0.01% 1 2.04%
Tobias Klauser 1 0.01% 1 2.04%
Total 8768 100.00% 49 100.00%
Directory: fs/nfs

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.
Person	Tokens	Prop	Commits	CommitProp
Chuck Lever	72	100.00%	1	100.00%
Total	72	100.00%	1	100.00%
cregit-Linux how code gets into the kernel

Release 4.11 fs/nfs/nfs3xdr.c

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