Release 4.10 fs/nfsd/nfs4xdr.c

/*
 *  Server-side XDR for NFSv4
 *
 *  Copyright (c) 2002 The Regents of the University of Michigan.
 *  All rights reserved.
 *
 *  Kendrick Smith <kmsmith@umich.edu>
 *  Andy Adamson   <andros@umich.edu>
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *
 *  1. Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *  3. Neither the name of the University nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
 *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 *  DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 *  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 *  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <linux/fs_struct.h>
#include <linux/file.h>
#include <linux/slab.h>
#include <linux/namei.h>
#include <linux/statfs.h>
#include <linux/utsname.h>
#include <linux/pagemap.h>
#include <linux/sunrpc/svcauth_gss.h>

#include "idmap.h"
#include "acl.h"
#include "xdr4.h"
#include "vfs.h"
#include "state.h"
#include "cache.h"
#include "netns.h"
#include "pnfs.h"

#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
#include <linux/security.h>
#endif



#define NFSDDBG_FACILITY		NFSDDBG_XDR


u32 nfsd_suppattrs[3][3] = {
	{NFSD4_SUPPORTED_ATTRS_WORD0,
	 NFSD4_SUPPORTED_ATTRS_WORD1,
	 NFSD4_SUPPORTED_ATTRS_WORD2},

	{NFSD4_1_SUPPORTED_ATTRS_WORD0,
	 NFSD4_1_SUPPORTED_ATTRS_WORD1,
	 NFSD4_1_SUPPORTED_ATTRS_WORD2},

	{NFSD4_1_SUPPORTED_ATTRS_WORD0,
	 NFSD4_1_SUPPORTED_ATTRS_WORD1,
	 NFSD4_2_SUPPORTED_ATTRS_WORD2},
};

/*
 * As per referral draft, the fsid for a referral MUST be different from the fsid of the containing
 * directory in order to indicate to the client that a filesystem boundary is present
 * We use a fixed fsid for a referral
 */

#define NFS4_REFERRAL_FSID_MAJOR	0x8000000ULL

#define NFS4_REFERRAL_FSID_MINOR	0x8000000ULL


static __be32

check_filename(char *str, int len)
{
	int i;

	if (len == 0)
		return nfserr_inval;
	if (isdotent(str, len))
		return nfserr_badname;
	for (i = 0; i < len; i++)
		if (str[i] == '/')
			return nfserr_badname;
	return 0;
}

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1
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1
1.54%
1
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65
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4
100.00%


#define DECODE_HEAD				\
	__be32 *p;                              \
        __be32 status

#define DECODE_TAIL				\
	status = 0;                             \
out:                                            \
        return status;                          \
xdr_error:                                      \
        dprintk("NFSD: xdr error (%s:%d)\n",    \
                        __FILE__, __LINE__);    \
        status = nfserr_bad_xdr;                \
        goto out


#define READMEM(x,nbytes) do {                    \
        x = (char *)p;                          \
        p += XDR_QUADLEN(nbytes);               \
} while (0)

#define SAVEMEM(x,nbytes) do {                    \
        if (!(x = (p==argp->tmp || p == argp->tmpp) ? \
                savemem(argp, p, nbytes) :      \
                (char *)p)) {                   \
                dprintk("NFSD: xdr error (%s:%d)\n", \
                                __FILE__, __LINE__); \
                goto xdr_error;                 \
                }                               \
        p += XDR_QUADLEN(nbytes);               \
} while (0)

#define COPYMEM(x,nbytes) do {                    \
        memcpy((x), p, nbytes);                 \
        p += XDR_QUADLEN(nbytes);               \
} while (0)

/* READ_BUF, read_buf(): nbytes must be <= PAGE_SIZE */

#define READ_BUF(nbytes)  do {                    \
        if (nbytes <= (u32)((char *)argp->end - (char *)argp->p)) {     \
                p = argp->p;                    \
                argp->p += XDR_QUADLEN(nbytes); \
        } else if (!(p = read_buf(argp, nbytes))) { \
                dprintk("NFSD: xdr error (%s:%d)\n", \
                                __FILE__, __LINE__); \
                goto xdr_error;                 \
        }                                       \
} while (0)



static void next_decode_page(struct nfsd4_compoundargs *argp)
{
	argp->p = page_address(argp->pagelist[0]);
	argp->pagelist++;
	if (argp->pagelen < PAGE_SIZE) {
		argp->end = argp->p + (argp->pagelen>>2);
		argp->pagelen = 0;
	} else {
		argp->end = argp->p + (PAGE_SIZE>>2);
		argp->pagelen -= PAGE_SIZE;
	}
}

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85
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2
100.00%



static __be32 *read_buf(struct nfsd4_compoundargs *argp, u32 nbytes)
{
	/* We want more bytes than seem to be available.
         * Maybe we need a new page, maybe we have just run out
         */
	unsigned int avail = (char *)argp->end - (char *)argp->p;
	__be32 *p;
	if (avail + argp->pagelen < nbytes)
		return NULL;
	if (avail + PAGE_SIZE < nbytes) /* need more than a page !! */
		return NULL;
	/* ok, we can do it with the current plus the next page */
	if (nbytes <= sizeof(argp->tmp))
		p = argp->tmp;
	else {
		kfree(argp->tmpp);
		p = argp->tmpp = kmalloc(nbytes, GFP_KERNEL);
		if (!p)
			return NULL;
		
	}
	/*
         * The following memcpy is safe because read_buf is always
         * called with nbytes > avail, and the two cases above both
         * guarantee p points to at least nbytes bytes.
         */
	memcpy(p, argp->p, avail);
	next_decode_page(argp);
	memcpy(((char*)p)+avail, argp->p, (nbytes - avail));
	argp->p += XDR_QUADLEN(nbytes - avail);
	return p;
}

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neil brown
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j. bruce fields
4
2.38%
2
33.33%
al viro
al viro
2
1.19%
1
16.67%
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168
100.00%
6
100.00%



static int zero_clientid(clientid_t *clid)
{
	return (clid->cl_boot == 0) && (clid->cl_id == 0);
}

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andy adamson
andy adamson
27
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1
100.00%
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27
100.00%
1
100.00%

/**
 * svcxdr_tmpalloc - allocate memory to be freed after compound processing
 * @argp: NFSv4 compound argument structure
 * @p: pointer to be freed (with kfree())
 *
 * Marks @p to be freed when processing the compound operation
 * described in @argp finishes.
 */

static void *

svcxdr_tmpalloc(struct nfsd4_compoundargs *argp, u32 len)
{
	struct svcxdr_tmpbuf *tb;

	tb = kmalloc(sizeof(*tb) + len, GFP_KERNEL);
	if (!tb)
		return NULL;
	tb->next = argp->to_free;
	argp->to_free = tb;
	return tb->buf;
}

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neil brown
neil brown
50
80.65%
1
50.00%
j. bruce fields
j. bruce fields
12
19.35%
1
50.00%
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62
100.00%
2
100.00%

/*
 * For xdr strings that need to be passed to other kernel api's
 * as null-terminated strings.
 *
 * Note null-terminating in place usually isn't safe since the
 * buffer might end on a page boundary.
 */

static char *

svcxdr_dupstr(struct nfsd4_compoundargs *argp, void *buf, u32 len)
{
	char *p = svcxdr_tmpalloc(argp, len + 1);

	if (!p)
		return NULL;
	memcpy(p, buf, len);
	p[len] = '\0';
	return p;
}

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j. bruce fields
j. bruce fields
28
47.46%
3
42.86%
neil brown
neil brown
27
45.76%
2
28.57%
eric sesterhenn
eric sesterhenn
2
3.39%
1
14.29%
thomas meyer
thomas meyer
2
3.39%
1
14.29%
Total
59
100.00%
7
100.00%

/**
 * savemem - duplicate a chunk of memory for later processing
 * @argp: NFSv4 compound argument structure to be freed with
 * @p: pointer to be duplicated
 * @nbytes: length to be duplicated
 *
 * Returns a pointer to a copy of @nbytes bytes of memory at @p
 * that are preserved until processing of the NFSv4 compound
 * operation described by @argp finishes.
 */


static char *savemem(struct nfsd4_compoundargs *argp, __be32 *p, int nbytes)
{
	void *ret;

	ret = svcxdr_tmpalloc(argp, nbytes);
	if (!ret)
		return NULL;
	memcpy(ret, p, nbytes);
	return ret;
}

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neil brown
neil brown
37
71.15%
3
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j. bruce fields
j. bruce fields
12
23.08%
1
16.67%
thomas meyer
thomas meyer
2
3.85%
1
16.67%
al viro
al viro
1
1.92%
1
16.67%
Total
52
100.00%
6
100.00%

/*
 * We require the high 32 bits of 'seconds' to be 0, and
 * we ignore all 32 bits of 'nseconds'.
 */

static __be32

nfsd4_decode_time(struct nfsd4_compoundargs *argp, struct timespec *tv)
{
	DECODE_HEAD;
	u64 sec;

	READ_BUF(12);
	p = xdr_decode_hyper(p, &sec);
	tv->tv_sec = sec;
	tv->tv_nsec = be32_to_cpup(p++);
	if (tv->tv_nsec >= (u32)1000000000)
		return nfserr_inval;

	DECODE_TAIL;
}

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68
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static __be32

nfsd4_decode_bitmap(struct nfsd4_compoundargs *argp, u32 *bmval)
{
	u32 bmlen;
	DECODE_HEAD;

	bmval[0] = 0;
	bmval[1] = 0;
	bmval[2] = 0;

	READ_BUF(4);
	bmlen = be32_to_cpup(p++);
	if (bmlen > 1000)
		goto xdr_error;

	READ_BUF(bmlen << 2);
	if (bmlen > 0)
		bmval[0] = be32_to_cpup(p++);
	if (bmlen > 1)
		bmval[1] = be32_to_cpup(p++);
	if (bmlen > 2)
		bmval[2] = be32_to_cpup(p++);

	DECODE_TAIL;
}

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neil brown
neil brown
83
67.48%
1
25.00%
j. bruce fields
j. bruce fields
20
16.26%
1
25.00%
andy adamson
andy adamson
19
15.45%
1
25.00%
al viro
al viro
1
0.81%
1
25.00%
Total
123
100.00%
4
100.00%


static __be32

nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval,
		   struct iattr *iattr, struct nfs4_acl **acl,
		   struct xdr_netobj *label, int *umask)
{
	int expected_len, len = 0;
	u32 dummy32;
	char *buf;

	DECODE_HEAD;
	iattr->ia_valid = 0;
	if ((status = nfsd4_decode_bitmap(argp, bmval)))
		return status;

	if (bmval[0] & ~NFSD_WRITEABLE_ATTRS_WORD0
	    || bmval[1] & ~NFSD_WRITEABLE_ATTRS_WORD1
	    || bmval[2] & ~NFSD_WRITEABLE_ATTRS_WORD2) {
		if (nfsd_attrs_supported(argp->minorversion, bmval))
			return nfserr_inval;
		return nfserr_attrnotsupp;
	}

	READ_BUF(4);
	expected_len = be32_to_cpup(p++);

	if (bmval[0] & FATTR4_WORD0_SIZE) {
		READ_BUF(8);
		len += 8;
		p = xdr_decode_hyper(p, &iattr->ia_size);
		iattr->ia_valid |= ATTR_SIZE;
	}
	if (bmval[0] & FATTR4_WORD0_ACL) {
		u32 nace;
		struct nfs4_ace *ace;

		READ_BUF(4); len += 4;
		nace = be32_to_cpup(p++);

		if (nace > NFS4_ACL_MAX)
			return nfserr_fbig;

		*acl = svcxdr_tmpalloc(argp, nfs4_acl_bytes(nace));
		if (*acl == NULL)
			return nfserr_jukebox;

		(*acl)->naces = nace;
		for (ace = (*acl)->aces; ace < (*acl)->aces + nace; ace++) {
			READ_BUF(16); len += 16;
			ace->type = be32_to_cpup(p++);
			ace->flag = be32_to_cpup(p++);
			ace->access_mask = be32_to_cpup(p++);
			dummy32 = be32_to_cpup(p++);
			READ_BUF(dummy32);
			len += XDR_QUADLEN(dummy32) << 2;
			READMEM(buf, dummy32);
			ace->whotype = nfs4_acl_get_whotype(buf, dummy32);
			status = nfs_ok;
			if (ace->whotype != NFS4_ACL_WHO_NAMED)
				;
			else if (ace->flag & NFS4_ACE_IDENTIFIER_GROUP)
				status = nfsd_map_name_to_gid(argp->rqstp,
						buf, dummy32, &ace->who_gid);
			else
				status = nfsd_map_name_to_uid(argp->rqstp,
						buf, dummy32, &ace->who_uid);
			if (status)
				return status;
		}
	} else
		*acl = NULL;
	if (bmval[1] & FATTR4_WORD1_MODE) {
		READ_BUF(4);
		len += 4;
		iattr->ia_mode = be32_to_cpup(p++);
		iattr->ia_mode &= (S_IFMT | S_IALLUGO);
		iattr->ia_valid |= ATTR_MODE;
	}
	if (bmval[1] & FATTR4_WORD1_OWNER) {
		READ_BUF(4);
		len += 4;
		dummy32 = be32_to_cpup(p++);
		READ_BUF(dummy32);
		len += (XDR_QUADLEN(dummy32) << 2);
		READMEM(buf, dummy32);
		if ((status = nfsd_map_name_to_uid(argp->rqstp, buf, dummy32, &iattr->ia_uid)))
			return status;
		iattr->ia_valid |= ATTR_UID;
	}
	if (bmval[1] & FATTR4_WORD1_OWNER_GROUP) {
		READ_BUF(4);
		len += 4;
		dummy32 = be32_to_cpup(p++);
		READ_BUF(dummy32);
		len += (XDR_QUADLEN(dummy32) << 2);
		READMEM(buf, dummy32);
		if ((status = nfsd_map_name_to_gid(argp->rqstp, buf, dummy32, &iattr->ia_gid)))
			return status;
		iattr->ia_valid |= ATTR_GID;
	}
	if (bmval[1] & FATTR4_WORD1_TIME_ACCESS_SET) {
		READ_BUF(4);
		len += 4;
		dummy32 = be32_to_cpup(p++);
		switch (dummy32) {
		case NFS4_SET_TO_CLIENT_TIME:
			len += 12;
			status = nfsd4_decode_time(argp, &iattr->ia_atime);
			if (status)
				return status;
			iattr->ia_valid |= (ATTR_ATIME | ATTR_ATIME_SET);
			break;
		case NFS4_SET_TO_SERVER_TIME:
			iattr->ia_valid |= ATTR_ATIME;
			break;
		default:
			goto xdr_error;
		}
	}
	if (bmval[1] & FATTR4_WORD1_TIME_MODIFY_SET) {
		READ_BUF(4);
		len += 4;
		dummy32 = be32_to_cpup(p++);
		switch (dummy32) {
		case NFS4_SET_TO_CLIENT_TIME:
			len += 12;
			status = nfsd4_decode_time(argp, &iattr->ia_mtime);
			if (status)
				return status;
			iattr->ia_valid |= (ATTR_MTIME | ATTR_MTIME_SET);
			break;
		case NFS4_SET_TO_SERVER_TIME:
			iattr->ia_valid |= ATTR_MTIME;
			break;
		default:
			goto xdr_error;
		}
	}

	label->len = 0;
#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
	if (bmval[2] & FATTR4_WORD2_SECURITY_LABEL) {
		READ_BUF(4);
		len += 4;
		dummy32 = be32_to_cpup(p++); /* lfs: we don't use it */
		READ_BUF(4);
		len += 4;
		dummy32 = be32_to_cpup(p++); /* pi: we don't use it either */
		READ_BUF(4);
		len += 4;
		dummy32 = be32_to_cpup(p++);
		READ_BUF(dummy32);
		if (dummy32 > NFS4_MAXLABELLEN)
			return nfserr_badlabel;
		len += (XDR_QUADLEN(dummy32) << 2);
		READMEM(buf, dummy32);
		label->len = dummy32;
		label->data = svcxdr_dupstr(argp, buf, dummy32);
		if (!label->data)
			return nfserr_jukebox;
	}
#endif
	if (bmval[2] & FATTR4_WORD2_MODE_UMASK) {
		if (!umask)
			goto xdr_error;
		READ_BUF(8);
		len += 8;
		dummy32 = be32_to_cpup(p++);
		iattr->ia_mode = dummy32 & (S_IFMT | S_IALLUGO);
		dummy32 = be32_to_cpup(p++);
		*umask = dummy32 & S_IRWXUGO;
		iattr->ia_valid |= ATTR_MODE;
	}
	if (len != expected_len)
		goto xdr_error;

	DECODE_TAIL;
}

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neil brown
neil brown
601
58.92%
4
16.00%
j. bruce fields
j. bruce fields
193
18.92%
11
44.00%
david quigley
david quigley
120
11.76%
1
4.00%
andreas gruenbacher
andreas gruenbacher
73
7.16%
1
4.00%
andrew morton
andrew morton
10
0.98%
1
4.00%
christoph hellwig
christoph hellwig
10
0.98%
1
4.00%
kinglong mee
kinglong mee
4
0.39%
2
8.00%
andi kleen
andi kleen
3
0.29%
1
4.00%
eric w. biederman
eric w. biederman
3
0.29%
1
4.00%
yu zhiguo
yu zhiguo
2
0.20%
1
4.00%
al viro
al viro
1
0.10%
1
4.00%
Total
1020
100.00%
25
100.00%


static __be32

nfsd4_decode_stateid(struct nfsd4_compoundargs *argp, stateid_t *sid)
{
	DECODE_HEAD;

	READ_BUF(sizeof(stateid_t));
	sid->si_generation = be32_to_cpup(p++);
	COPYMEM(&sid->si_opaque, sizeof(stateid_opaque_t));

	DECODE_TAIL;
}

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benny halevy
benny halevy
43
86.00%
1
25.00%
j. bruce fields
j. bruce fields
5
10.00%
1
25.00%
al viro
al viro
1
2.00%
1
25.00%
neil brown
neil brown
1
2.00%
1
25.00%
Total
50
100.00%
4
100.00%


static __be32

nfsd4_decode_access(struct nfsd4_compoundargs *argp, struct nfsd4_access *access)
{
	DECODE_HEAD;

	READ_BUF(4);
	access->ac_req_access = be32_to_cpup(p++);

	DECODE_TAIL;
}

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neil brown
neil brown
28
80.00%
1
33.33%
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j. bruce fields
5
14.29%
1
33.33%
benny halevy
benny halevy
2
5.71%
1
33.33%
Total
35
100.00%
3
100.00%



static __be32 nfsd4_decode_cb_sec(struct nfsd4_compoundargs *argp, struct nfsd4_cb_sec *cbs)
{
	DECODE_HEAD;
	u32 dummy, uid, gid;
	char *machine_name;
	int i;
	int nr_secflavs;

	/* callback_sec_params4 */
	READ_BUF(4);
	nr_secflavs = be32_to_cpup(p++);
	if (nr_secflavs)
		cbs->flavor = (u32)(-1);
	else
		/* Is this legal? Be generous, take it to mean AUTH_NONE: */
		cbs->flavor = 0;
	for (i = 0; i < nr_secflavs; ++i) {
		READ_BUF(4);
		dummy = be32_to_cpup(p++);
		switch (dummy) {
		case RPC_AUTH_NULL:
			/* Nothing to read */
			if (cbs->flavor == (u32)(-1))
				cbs->flavor = RPC_AUTH_NULL;
			break;
		case RPC_AUTH_UNIX:
			READ_BUF(8);
			/* stamp */
			dummy = be32_to_cpup(p++);

			/* machine name */
			dummy = be32_to_cpup(p++);
			READ_BUF(dummy);
			SAVEMEM(machine_name, dummy);

			/* uid, gid */
			READ_BUF(8);
			uid = be32_to_cpup(p++);
			gid = be32_to_cpup(p++);

			/* more gids */
			READ_BUF(4);
			dummy = be32_to_cpup(p++);
			READ_BUF(dummy * 4);
			if (cbs->flavor == (u32)(-1)) {
				kuid_t kuid = make_kuid(&init_user_ns, uid);
				kgid_t kgid = make_kgid(&init_user_ns, gid);
				if (uid_valid(kuid) && gid_valid(kgid)) {
					cbs->uid = kuid;
					cbs->gid = kgid;
					cbs->flavor = RPC_AUTH_UNIX;
				} else {
					dprintk("RPC_AUTH_UNIX with invalid"
						"uid or gid ignoring!\n");
				}
			}
			break;
		case RPC_AUTH_GSS:
			dprintk("RPC_AUTH_GSS callback secflavor "
				"not supported!\n");
			READ_BUF(8);
			/* gcbp_service */
			dummy = be32_to_cpup(p++);
			/* gcbp_handle_from_server */
			dummy = be32_to_cpup(p++);
			READ_BUF(dummy);
			p += XDR_QUADLEN(dummy);
			/* gcbp_handle_from_client */
			READ_BUF(4);
			dummy = be32_to_cpup(p++);
			READ_BUF(dummy);
			break;
		default:
			dprintk("Illegal callback secflavor\n");
			return nfserr_inval;
		}
	}
	DECODE_TAIL;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
j. bruce fields
j. bruce fields
321
87.23%
4
80.00%
eric w. biederman
eric w. biederman
47
12.77%
1
20.00%
Total
368
100.00%
5
100.00%



static __be32 nfsd4_decode_backchannel_ctl(struct nfsd4_compoundargs *argp, struct nfsd4_backchannel_ctl *bc)
{
	DECODE_HEAD;

	READ_BUF(4);
	bc->bc_cb_program = be32_to_cpup(p++);
	nfsd4_decode_cb_sec(argp, &bc->bc_cb_sec);

	DECODE_TAIL;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
j. bruce fields
j. bruce fields
45
100.00%
2
100.00%
Total
45
100.00%
2
100.00%



static __be32 nfsd4_decode_bind_conn_to_session(struct nfsd4_compoundargs *argp, struct nfsd4_bind_conn_to_session *bcts)
{
	DECODE_HEAD;

	READ_BUF(NFS4_MAX_SESSIONID_LEN + 8);
	COPYMEM(bcts->sessionid.data, NFS4_MAX_SESSIONID_LEN);
	bcts->dir = be32_to_cpup(p++);
	/* XXX: skipping ctsa_use_conn_in_rdma_mode.  Perhaps Tom Tucker
         * could help us figure out we should be using it. */
	DECODE_TAIL;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
j. bruce fields
j. bruce fields
48
97.96%
2
66.67%
bryan schumaker
bryan schumaker
1
2.04%
1
33.33%
Total
49
100.00%
3
100.00%


static __be32

nfsd4_decode_close(struct nfsd4_compoundargs *argp, struct nfsd4_close *close)
{
	DECODE_HEAD;

	READ_BUF(4);
	close->cl_seqid = be32_to_cpup(p++);
	return nfsd4_decode_stateid(argp, &close->cl_stateid);

	DECODE_TAIL;
}


Contributors
Person
Tokens
Prop
Commits
CommitProp
neil brown
neil brown
35
76.09%
1
25.00%
j. bruce fields
j. bruce fields
5
10.87%
1
25.00%
benny halevy
benny halevy
5
10.87%
1
25.00%
al viro
al viro
1
2.17%
1
25.00%
Total
46
100.00%
4
100.00%


static __be32

nfsd4_decode_commit(struct nfsd4_compoundargs *argp, struct nfsd4_commit *commit)
{
	DECODE_HEAD;

	READ_BUF(12);
	p = xdr_decode_hyper(p, &commit->co_offset);
	commit->co_count = be32_to_cpup(p++);

	DECODE_TAIL;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
neil brown
neil brown
35
74.47%
1
25.00%
j. bruce fields
j. bruce fields
11
23.40%
2
50.00%
al viro
al viro
1
2.13%
1
25.00%
Total
47
100.00%
4
100.00%


static __be32

nfsd4_decode_create(struct nfsd4_compoundargs *argp, struct nfsd4_create *create)
{
	DECODE_HEAD;

	READ_BUF(4);
	create->cr_type = be32_to_cpup(p++);
	switch (create->cr_type) {
	case NF4LNK:
		READ_BUF(4);
		create->cr_datalen = be32_to_cpup(p++);
		READ_BUF(create->cr_datalen);
		create->cr_data = svcxdr_dupstr(argp, p, create->cr_datalen);
		if (!create->cr_data)
			return nfserr_jukebox;
		break;
	case NF4BLK:
	case NF4CHR:
		READ_BUF(8);
		create->cr_specdata1 = be32_to_cpup(p++);
		create->cr_specdata2 = be32_to_cpup(p++);
		break;
	case NF4SOCK:
	case NF4FIFO:
	case NF4DIR:
	default:
		break;
	}

	READ_BUF(4);
	create->cr_namelen = be32_to_cpup(p++);
	READ_BUF(create->cr_namelen);
	SAVEMEM(create->cr_name, create->cr_namelen);
	if ((status = check_filename(create->cr_name, create->cr_namelen)))
		return status;

	status = nfsd4_decode_fattr(argp, create->cr_bmval, &create->cr_iattr,
				    &create->cr_acl, &create->cr_label,
				    &current->fs->umask);
	if (status)
		goto out;

	DECODE_TAIL;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
neil brown
neil brown
161
70.00%
4
33.33%
j. bruce fields
j. bruce fields
52
22.61%
4
33.33%
andreas gruenbacher
andreas gruenbacher
7
3.04%
1
8.33%
david quigley
david quigley
5
2.17%
1
8.33%
benny halevy
benny halevy
4
1.74%
1
8.33%
al viro
al viro
1
0.43%
1
8.33%
Total
230
100.00%
12
100.00%


static inline __be32

nfsd4_decode_delegreturn(struct nfsd4_compoundargs *argp, struct nfsd4_delegreturn *dr)
{
	return nfsd4_decode_stateid(argp, &dr->dr_stateid);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
neil brown
neil brown
22
78.57%
2
50.00%
benny halevy
benny halevy
5
17.86%
1
25.00%
al viro
al viro
1
3.57%
1
25.00%
Total
28
100.00%
4
100.00%


static inline __be32

nfsd4_decode_getattr(struct nfsd4_compoundargs *argp, struct nfsd4_getattr *getattr)
{
	return nfsd4_decode_bitmap(argp, getattr->ga_bmval);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
neil brown
neil brown
26
96.30%
2
66.67%
al viro
al viro
1
3.70%
1
33.33%
Total
27
100.00%
3
100.00%


static __be32

nfsd4_decode_link(struct nfsd4_compoundargs *argp, struct nfsd4_link *link)
{
	DECODE_HEAD;

	READ_BUF(4);
	link->li_namelen = be32_to_cpup(p++);
	READ_BUF(link->