[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/os/linux/linux-3.4.x/fs/nfsd/nfs4proc.c b/ap/os/linux/linux-3.4.x/fs/nfsd/nfs4proc.c
new file mode 100644
index 0000000..b2ce878
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/fs/nfsd/nfs4proc.c
@@ -0,0 +1,1781 @@
+/*
+ * Server-side procedures 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/file.h>
+#include <linux/slab.h>
+
+#include "idmap.h"
+#include "cache.h"
+#include "xdr4.h"
+#include "vfs.h"
+#include "current_stateid.h"
+
+#define NFSDDBG_FACILITY NFSDDBG_PROC
+
+static u32 nfsd_attrmask[] = {
+ NFSD_WRITEABLE_ATTRS_WORD0,
+ NFSD_WRITEABLE_ATTRS_WORD1,
+ NFSD_WRITEABLE_ATTRS_WORD2
+};
+
+static u32 nfsd41_ex_attrmask[] = {
+ NFSD_SUPPATTR_EXCLCREAT_WORD0,
+ NFSD_SUPPATTR_EXCLCREAT_WORD1,
+ NFSD_SUPPATTR_EXCLCREAT_WORD2
+};
+
+static __be32
+check_attr_support(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ u32 *bmval, u32 *writable)
+{
+ struct dentry *dentry = cstate->current_fh.fh_dentry;
+
+ /*
+ * Check about attributes are supported by the NFSv4 server or not.
+ * According to spec, unsupported attributes return ERR_ATTRNOTSUPP.
+ */
+ if ((bmval[0] & ~nfsd_suppattrs0(cstate->minorversion)) ||
+ (bmval[1] & ~nfsd_suppattrs1(cstate->minorversion)) ||
+ (bmval[2] & ~nfsd_suppattrs2(cstate->minorversion)))
+ return nfserr_attrnotsupp;
+
+ /*
+ * Check FATTR4_WORD0_ACL can be supported
+ * in current environment or not.
+ */
+ if (bmval[0] & FATTR4_WORD0_ACL) {
+ if (!IS_POSIXACL(dentry->d_inode))
+ return nfserr_attrnotsupp;
+ }
+
+ /*
+ * According to spec, read-only attributes return ERR_INVAL.
+ */
+ if (writable) {
+ if ((bmval[0] & ~writable[0]) || (bmval[1] & ~writable[1]) ||
+ (bmval[2] & ~writable[2]))
+ return nfserr_inval;
+ }
+
+ return nfs_ok;
+}
+
+static __be32
+nfsd4_check_open_attributes(struct svc_rqst *rqstp,
+ struct nfsd4_compound_state *cstate, struct nfsd4_open *open)
+{
+ __be32 status = nfs_ok;
+
+ if (open->op_create == NFS4_OPEN_CREATE) {
+ if (open->op_createmode == NFS4_CREATE_UNCHECKED
+ || open->op_createmode == NFS4_CREATE_GUARDED)
+ status = check_attr_support(rqstp, cstate,
+ open->op_bmval, nfsd_attrmask);
+ else if (open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1)
+ status = check_attr_support(rqstp, cstate,
+ open->op_bmval, nfsd41_ex_attrmask);
+ }
+
+ return status;
+}
+
+static int
+is_create_with_attrs(struct nfsd4_open *open)
+{
+ return open->op_create == NFS4_OPEN_CREATE
+ && (open->op_createmode == NFS4_CREATE_UNCHECKED
+ || open->op_createmode == NFS4_CREATE_GUARDED
+ || open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1);
+}
+
+/*
+ * if error occurs when setting the acl, just clear the acl bit
+ * in the returned attr bitmap.
+ */
+static void
+do_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp,
+ struct nfs4_acl *acl, u32 *bmval)
+{
+ __be32 status;
+
+ status = nfsd4_set_nfs4_acl(rqstp, fhp, acl);
+ if (status)
+ /*
+ * We should probably fail the whole open at this point,
+ * but we've already created the file, so it's too late;
+ * So this seems the least of evils:
+ */
+ bmval[0] &= ~FATTR4_WORD0_ACL;
+}
+
+static inline void
+fh_dup2(struct svc_fh *dst, struct svc_fh *src)
+{
+ fh_put(dst);
+ dget(src->fh_dentry);
+ if (src->fh_export)
+ cache_get(&src->fh_export->h);
+ *dst = *src;
+}
+
+static __be32
+do_open_permission(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open, int accmode)
+{
+ __be32 status;
+
+ if (open->op_truncate &&
+ !(open->op_share_access & NFS4_SHARE_ACCESS_WRITE))
+ return nfserr_inval;
+
+ accmode |= NFSD_MAY_READ_IF_EXEC;
+
+ if (open->op_share_access & NFS4_SHARE_ACCESS_READ)
+ accmode |= NFSD_MAY_READ;
+ if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE)
+ accmode |= (NFSD_MAY_WRITE | NFSD_MAY_TRUNC);
+ if (open->op_share_deny & NFS4_SHARE_DENY_READ)
+ accmode |= NFSD_MAY_WRITE;
+
+ status = fh_verify(rqstp, current_fh, S_IFREG, accmode);
+
+ return status;
+}
+
+static __be32 nfsd_check_obj_isreg(struct svc_fh *fh)
+{
+ umode_t mode = fh->fh_dentry->d_inode->i_mode;
+
+ if (S_ISREG(mode))
+ return nfs_ok;
+ if (S_ISDIR(mode))
+ return nfserr_isdir;
+ /*
+ * Using err_symlink as our catch-all case may look odd; but
+ * there's no other obvious error for this case in 4.0, and we
+ * happen to know that it will cause the linux v4 client to do
+ * the right thing on attempts to open something other than a
+ * regular file.
+ */
+ return nfserr_symlink;
+}
+
+static __be32
+do_open_lookup(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open)
+{
+ struct svc_fh *resfh;
+ int accmode;
+ __be32 status;
+
+ resfh = kmalloc(sizeof(struct svc_fh), GFP_KERNEL);
+ if (!resfh)
+ return nfserr_jukebox;
+ fh_init(resfh, NFS4_FHSIZE);
+ open->op_truncate = 0;
+
+ if (open->op_create) {
+ /* FIXME: check session persistence and pnfs flags.
+ * The nfsv4.1 spec requires the following semantics:
+ *
+ * Persistent | pNFS | Server REQUIRED | Client Allowed
+ * Reply Cache | server | |
+ * -------------+--------+-----------------+--------------------
+ * no | no | EXCLUSIVE4_1 | EXCLUSIVE4_1
+ * | | | (SHOULD)
+ * | | and EXCLUSIVE4 | or EXCLUSIVE4
+ * | | | (SHOULD NOT)
+ * no | yes | EXCLUSIVE4_1 | EXCLUSIVE4_1
+ * yes | no | GUARDED4 | GUARDED4
+ * yes | yes | GUARDED4 | GUARDED4
+ */
+
+ /*
+ * Note: create modes (UNCHECKED,GUARDED...) are the same
+ * in NFSv4 as in v3 except EXCLUSIVE4_1.
+ */
+ status = do_nfsd_create(rqstp, current_fh, open->op_fname.data,
+ open->op_fname.len, &open->op_iattr,
+ resfh, open->op_createmode,
+ (u32 *)open->op_verf.data,
+ &open->op_truncate, &open->op_created);
+
+ /*
+ * Following rfc 3530 14.2.16, use the returned bitmask
+ * to indicate which attributes we used to store the
+ * verifier:
+ */
+ if (open->op_createmode == NFS4_CREATE_EXCLUSIVE && status == 0)
+ open->op_bmval[1] = (FATTR4_WORD1_TIME_ACCESS |
+ FATTR4_WORD1_TIME_MODIFY);
+ } else {
+ status = nfsd_lookup(rqstp, current_fh,
+ open->op_fname.data, open->op_fname.len, resfh);
+ fh_unlock(current_fh);
+ }
+ if (status)
+ goto out;
+ status = nfsd_check_obj_isreg(resfh);
+ if (status)
+ goto out;
+
+ if (is_create_with_attrs(open) && open->op_acl != NULL)
+ do_set_nfs4_acl(rqstp, resfh, open->op_acl, open->op_bmval);
+
+ /* set reply cache */
+ fh_copy_shallow(&open->op_openowner->oo_owner.so_replay.rp_openfh,
+ &resfh->fh_handle);
+ accmode = NFSD_MAY_NOP;
+ if (open->op_created)
+ accmode |= NFSD_MAY_OWNER_OVERRIDE;
+ status = do_open_permission(rqstp, resfh, open, accmode);
+ set_change_info(&open->op_cinfo, current_fh);
+ fh_dup2(current_fh, resfh);
+out:
+ fh_put(resfh);
+ kfree(resfh);
+ return status;
+}
+
+static __be32
+do_open_fhandle(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open)
+{
+ __be32 status;
+ int accmode = 0;
+
+ /* We don't know the target directory, and therefore can not
+ * set the change info
+ */
+
+ memset(&open->op_cinfo, 0, sizeof(struct nfsd4_change_info));
+
+ /* set replay cache */
+ fh_copy_shallow(&open->op_openowner->oo_owner.so_replay.rp_openfh,
+ ¤t_fh->fh_handle);
+
+ open->op_truncate = (open->op_iattr.ia_valid & ATTR_SIZE) &&
+ (open->op_iattr.ia_size == 0);
+ /*
+ * In the delegation case, the client is telling us about an
+ * open that it *already* performed locally, some time ago. We
+ * should let it succeed now if possible.
+ *
+ * In the case of a CLAIM_FH open, on the other hand, the client
+ * may be counting on us to enforce permissions (the Linux 4.1
+ * client uses this for normal opens, for example).
+ */
+ if (open->op_claim_type == NFS4_OPEN_CLAIM_DELEG_CUR_FH)
+ accmode = NFSD_MAY_OWNER_OVERRIDE;
+
+ status = do_open_permission(rqstp, current_fh, open, accmode);
+
+ return status;
+}
+
+static void
+copy_clientid(clientid_t *clid, struct nfsd4_session *session)
+{
+ struct nfsd4_sessionid *sid =
+ (struct nfsd4_sessionid *)session->se_sessionid.data;
+
+ clid->cl_boot = sid->clientid.cl_boot;
+ clid->cl_id = sid->clientid.cl_id;
+}
+
+static __be32
+nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ struct nfsd4_open *open)
+{
+ __be32 status;
+ struct nfsd4_compoundres *resp;
+
+ dprintk("NFSD: nfsd4_open filename %.*s op_openowner %p\n",
+ (int)open->op_fname.len, open->op_fname.data,
+ open->op_openowner);
+
+ /* This check required by spec. */
+ if (open->op_create && open->op_claim_type != NFS4_OPEN_CLAIM_NULL)
+ return nfserr_inval;
+
+ open->op_created = 0;
+ /*
+ * RFC5661 18.51.3
+ * Before RECLAIM_COMPLETE done, server should deny new lock
+ */
+ if (nfsd4_has_session(cstate) &&
+ !test_bit(NFSD4_CLIENT_RECLAIM_COMPLETE,
+ &cstate->session->se_client->cl_flags) &&
+ open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS)
+ return nfserr_grace;
+
+ if (nfsd4_has_session(cstate))
+ copy_clientid(&open->op_clientid, cstate->session);
+
+ nfs4_lock_state();
+
+ /* check seqid for replay. set nfs4_owner */
+ resp = rqstp->rq_resp;
+ status = nfsd4_process_open1(&resp->cstate, open);
+ if (status == nfserr_replay_me) {
+ struct nfs4_replay *rp = &open->op_openowner->oo_owner.so_replay;
+ fh_put(&cstate->current_fh);
+ fh_copy_shallow(&cstate->current_fh.fh_handle,
+ &rp->rp_openfh);
+ status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP);
+ if (status)
+ dprintk("nfsd4_open: replay failed"
+ " restoring previous filehandle\n");
+ else
+ status = nfserr_replay_me;
+ }
+ if (status)
+ goto out;
+
+ status = nfsd4_check_open_attributes(rqstp, cstate, open);
+ if (status)
+ goto out;
+
+ /* Openowner is now set, so sequence id will get bumped. Now we need
+ * these checks before we do any creates: */
+ status = nfserr_grace;
+ if (locks_in_grace() && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS)
+ goto out;
+ status = nfserr_no_grace;
+ if (!locks_in_grace() && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS)
+ goto out;
+
+ switch (open->op_claim_type) {
+ case NFS4_OPEN_CLAIM_DELEGATE_CUR:
+ case NFS4_OPEN_CLAIM_NULL:
+ status = do_open_lookup(rqstp, &cstate->current_fh,
+ open);
+ if (status)
+ goto out;
+ break;
+ case NFS4_OPEN_CLAIM_PREVIOUS:
+ open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED;
+ status = nfs4_check_open_reclaim(&open->op_clientid);
+ if (status)
+ goto out;
+ case NFS4_OPEN_CLAIM_FH:
+ case NFS4_OPEN_CLAIM_DELEG_CUR_FH:
+ status = do_open_fhandle(rqstp, &cstate->current_fh,
+ open);
+ if (status)
+ goto out;
+ break;
+ case NFS4_OPEN_CLAIM_DELEG_PREV_FH:
+ case NFS4_OPEN_CLAIM_DELEGATE_PREV:
+ open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED;
+ dprintk("NFSD: unsupported OPEN claim type %d\n",
+ open->op_claim_type);
+ status = nfserr_notsupp;
+ goto out;
+ default:
+ dprintk("NFSD: Invalid OPEN claim type %d\n",
+ open->op_claim_type);
+ status = nfserr_inval;
+ goto out;
+ }
+ /*
+ * nfsd4_process_open2() does the actual opening of the file. If
+ * successful, it (1) truncates the file if open->op_truncate was
+ * set, (2) sets open->op_stateid, (3) sets open->op_delegation.
+ */
+ status = nfsd4_process_open2(rqstp, &cstate->current_fh, open);
+ WARN_ON(status && open->op_created);
+out:
+ nfsd4_cleanup_open_state(open, status);
+ if (open->op_openowner)
+ cstate->replay_owner = &open->op_openowner->oo_owner;
+ else
+ nfs4_unlock_state();
+ return status;
+}
+
+/*
+ * filehandle-manipulating ops.
+ */
+static __be32
+nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ struct svc_fh **getfh)
+{
+ if (!cstate->current_fh.fh_dentry)
+ return nfserr_nofilehandle;
+
+ *getfh = &cstate->current_fh;
+ return nfs_ok;
+}
+
+static __be32
+nfsd4_putfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ struct nfsd4_putfh *putfh)
+{
+ fh_put(&cstate->current_fh);
+ cstate->current_fh.fh_handle.fh_size = putfh->pf_fhlen;
+ memcpy(&cstate->current_fh.fh_handle.fh_base, putfh->pf_fhval,
+ putfh->pf_fhlen);
+ return fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_BYPASS_GSS);
+}
+
+static __be32
+nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ void *arg)
+{
+ __be32 status;
+
+ fh_put(&cstate->current_fh);
+ status = exp_pseudoroot(rqstp, &cstate->current_fh);
+ return status;
+}
+
+static __be32
+nfsd4_restorefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ void *arg)
+{
+ if (!cstate->save_fh.fh_dentry)
+ return nfserr_restorefh;
+
+ fh_dup2(&cstate->current_fh, &cstate->save_fh);
+ if (HAS_STATE_ID(cstate, SAVED_STATE_ID_FLAG)) {
+ memcpy(&cstate->current_stateid, &cstate->save_stateid, sizeof(stateid_t));
+ SET_STATE_ID(cstate, CURRENT_STATE_ID_FLAG);
+ }
+ return nfs_ok;
+}
+
+static __be32
+nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ void *arg)
+{
+ if (!cstate->current_fh.fh_dentry)
+ return nfserr_nofilehandle;
+
+ fh_dup2(&cstate->save_fh, &cstate->current_fh);
+ if (HAS_STATE_ID(cstate, CURRENT_STATE_ID_FLAG)) {
+ memcpy(&cstate->save_stateid, &cstate->current_stateid, sizeof(stateid_t));
+ SET_STATE_ID(cstate, SAVED_STATE_ID_FLAG);
+ }
+ return nfs_ok;
+}
+
+/*
+ * misc nfsv4 ops
+ */
+static __be32
+nfsd4_access(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ struct nfsd4_access *access)
+{
+ if (access->ac_req_access & ~NFS3_ACCESS_FULL)
+ return nfserr_inval;
+
+ access->ac_resp_access = access->ac_req_access;
+ return nfsd_access(rqstp, &cstate->current_fh, &access->ac_resp_access,
+ &access->ac_supported);
+}
+
+static void gen_boot_verifier(nfs4_verifier *verifier)
+{
+ __be32 verf[2];
+
+ verf[0] = (__be32)nfssvc_boot.tv_sec;
+ verf[1] = (__be32)nfssvc_boot.tv_usec;
+ memcpy(verifier->data, verf, sizeof(verifier->data));
+}
+
+static __be32
+nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ struct nfsd4_commit *commit)
+{
+ gen_boot_verifier(&commit->co_verf);
+ return nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset,
+ commit->co_count);
+}
+
+static __be32
+nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ struct nfsd4_create *create)
+{
+ struct svc_fh resfh;
+ __be32 status;
+ dev_t rdev;
+
+ fh_init(&resfh, NFS4_FHSIZE);
+
+ status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR,
+ NFSD_MAY_CREATE);
+ if (status)
+ return status;
+
+ status = check_attr_support(rqstp, cstate, create->cr_bmval,
+ nfsd_attrmask);
+ if (status)
+ return status;
+
+ switch (create->cr_type) {
+ case NF4LNK:
+ status = nfsd_symlink(rqstp, &cstate->current_fh,
+ create->cr_name, create->cr_namelen,
+ create->cr_linkname, create->cr_linklen,
+ &resfh, &create->cr_iattr);
+ break;
+
+ case NF4BLK:
+ rdev = MKDEV(create->cr_specdata1, create->cr_specdata2);
+ if (MAJOR(rdev) != create->cr_specdata1 ||
+ MINOR(rdev) != create->cr_specdata2)
+ return nfserr_inval;
+ status = nfsd_create(rqstp, &cstate->current_fh,
+ create->cr_name, create->cr_namelen,
+ &create->cr_iattr, S_IFBLK, rdev, &resfh);
+ break;
+
+ case NF4CHR:
+ rdev = MKDEV(create->cr_specdata1, create->cr_specdata2);
+ if (MAJOR(rdev) != create->cr_specdata1 ||
+ MINOR(rdev) != create->cr_specdata2)
+ return nfserr_inval;
+ status = nfsd_create(rqstp, &cstate->current_fh,
+ create->cr_name, create->cr_namelen,
+ &create->cr_iattr,S_IFCHR, rdev, &resfh);
+ break;
+
+ case NF4SOCK:
+ status = nfsd_create(rqstp, &cstate->current_fh,
+ create->cr_name, create->cr_namelen,
+ &create->cr_iattr, S_IFSOCK, 0, &resfh);
+ break;
+
+ case NF4FIFO:
+ status = nfsd_create(rqstp, &cstate->current_fh,
+ create->cr_name, create->cr_namelen,
+ &create->cr_iattr, S_IFIFO, 0, &resfh);
+ break;
+
+ case NF4DIR:
+ create->cr_iattr.ia_valid &= ~ATTR_SIZE;
+ status = nfsd_create(rqstp, &cstate->current_fh,
+ create->cr_name, create->cr_namelen,
+ &create->cr_iattr, S_IFDIR, 0, &resfh);
+ break;
+
+ default:
+ status = nfserr_badtype;
+ }
+
+ if (status)
+ goto out;
+
+ if (create->cr_acl != NULL)
+ do_set_nfs4_acl(rqstp, &resfh, create->cr_acl,
+ create->cr_bmval);
+
+ fh_unlock(&cstate->current_fh);
+ set_change_info(&create->cr_cinfo, &cstate->current_fh);
+ fh_dup2(&cstate->current_fh, &resfh);
+out:
+ fh_put(&resfh);
+ return status;
+}
+
+static __be32
+nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ struct nfsd4_getattr *getattr)
+{
+ __be32 status;
+
+ status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP);
+ if (status)
+ return status;
+
+ if (getattr->ga_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)
+ return nfserr_inval;
+
+ getattr->ga_bmval[0] &= nfsd_suppattrs0(cstate->minorversion);
+ getattr->ga_bmval[1] &= nfsd_suppattrs1(cstate->minorversion);
+ getattr->ga_bmval[2] &= nfsd_suppattrs2(cstate->minorversion);
+
+ getattr->ga_fhp = &cstate->current_fh;
+ return nfs_ok;
+}
+
+static __be32
+nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ struct nfsd4_link *link)
+{
+ __be32 status = nfserr_nofilehandle;
+
+ if (!cstate->save_fh.fh_dentry)
+ return status;
+ status = nfsd_link(rqstp, &cstate->current_fh,
+ link->li_name, link->li_namelen, &cstate->save_fh);
+ if (!status)
+ set_change_info(&link->li_cinfo, &cstate->current_fh);
+ return status;
+}
+
+static __be32 nfsd4_do_lookupp(struct svc_rqst *rqstp, struct svc_fh *fh)
+{
+ struct svc_fh tmp_fh;
+ __be32 ret;
+
+ fh_init(&tmp_fh, NFS4_FHSIZE);
+ ret = exp_pseudoroot(rqstp, &tmp_fh);
+ if (ret)
+ return ret;
+ if (tmp_fh.fh_dentry == fh->fh_dentry) {
+ fh_put(&tmp_fh);
+ return nfserr_noent;
+ }
+ fh_put(&tmp_fh);
+ return nfsd_lookup(rqstp, fh, "..", 2, fh);
+}
+
+static __be32
+nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ void *arg)
+{
+ return nfsd4_do_lookupp(rqstp, &cstate->current_fh);
+}
+
+static __be32
+nfsd4_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ struct nfsd4_lookup *lookup)
+{
+ return nfsd_lookup(rqstp, &cstate->current_fh,
+ lookup->lo_name, lookup->lo_len,
+ &cstate->current_fh);
+}
+
+static __be32
+nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ struct nfsd4_read *read)
+{
+ __be32 status;
+
+ /* no need to check permission - this will be done in nfsd_read() */
+
+ read->rd_filp = NULL;
+ if (read->rd_offset >= OFFSET_MAX)
+ return nfserr_inval;
+
+ nfs4_lock_state();
+ /* check stateid */
+ if ((status = nfs4_preprocess_stateid_op(cstate, &read->rd_stateid,
+ RD_STATE, &read->rd_filp))) {
+ dprintk("NFSD: nfsd4_read: couldn't process stateid!\n");
+ goto out;
+ }
+ if (read->rd_filp)
+ get_file(read->rd_filp);
+ status = nfs_ok;
+out:
+ nfs4_unlock_state();
+ read->rd_rqstp = rqstp;
+ read->rd_fhp = &cstate->current_fh;
+ return status;
+}
+
+static __be32
+nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ struct nfsd4_readdir *readdir)
+{
+ u64 cookie = readdir->rd_cookie;
+ static const nfs4_verifier zeroverf;
+
+ /* no need to check permission - this will be done in nfsd_readdir() */
+
+ if (readdir->rd_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)
+ return nfserr_inval;
+
+ readdir->rd_bmval[0] &= nfsd_suppattrs0(cstate->minorversion);
+ readdir->rd_bmval[1] &= nfsd_suppattrs1(cstate->minorversion);
+ readdir->rd_bmval[2] &= nfsd_suppattrs2(cstate->minorversion);
+
+ if ((cookie == 1) || (cookie == 2) ||
+ (cookie == 0 && memcmp(readdir->rd_verf.data, zeroverf.data, NFS4_VERIFIER_SIZE)))
+ return nfserr_bad_cookie;
+
+ readdir->rd_rqstp = rqstp;
+ readdir->rd_fhp = &cstate->current_fh;
+ return nfs_ok;
+}
+
+static __be32
+nfsd4_readlink(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ struct nfsd4_readlink *readlink)
+{
+ readlink->rl_rqstp = rqstp;
+ readlink->rl_fhp = &cstate->current_fh;
+ return nfs_ok;
+}
+
+static __be32
+nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ struct nfsd4_remove *remove)
+{
+ __be32 status;
+
+ if (locks_in_grace())
+ return nfserr_grace;
+ status = nfsd_unlink(rqstp, &cstate->current_fh, 0,
+ remove->rm_name, remove->rm_namelen);
+ if (!status) {
+ fh_unlock(&cstate->current_fh);
+ set_change_info(&remove->rm_cinfo, &cstate->current_fh);
+ }
+ return status;
+}
+
+static __be32
+nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ struct nfsd4_rename *rename)
+{
+ __be32 status = nfserr_nofilehandle;
+
+ if (!cstate->save_fh.fh_dentry)
+ return status;
+ if (locks_in_grace() && !(cstate->save_fh.fh_export->ex_flags
+ & NFSEXP_NOSUBTREECHECK))
+ return nfserr_grace;
+ status = nfsd_rename(rqstp, &cstate->save_fh, rename->rn_sname,
+ rename->rn_snamelen, &cstate->current_fh,
+ rename->rn_tname, rename->rn_tnamelen);
+
+ /* the underlying filesystem returns different error's than required
+ * by NFSv4. both save_fh and current_fh have been verified.. */
+ if (status == nfserr_isdir)
+ status = nfserr_exist;
+ else if ((status == nfserr_notdir) &&
+ (S_ISDIR(cstate->save_fh.fh_dentry->d_inode->i_mode) &&
+ S_ISDIR(cstate->current_fh.fh_dentry->d_inode->i_mode)))
+ status = nfserr_exist;
+
+ if (!status) {
+ set_change_info(&rename->rn_sinfo, &cstate->current_fh);
+ set_change_info(&rename->rn_tinfo, &cstate->save_fh);
+ }
+ return status;
+}
+
+static __be32
+nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ struct nfsd4_secinfo *secinfo)
+{
+ struct svc_fh resfh;
+ struct svc_export *exp;
+ struct dentry *dentry;
+ __be32 err;
+
+ fh_init(&resfh, NFS4_FHSIZE);
+ err = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_EXEC);
+ if (err)
+ return err;
+ err = nfsd_lookup_dentry(rqstp, &cstate->current_fh,
+ secinfo->si_name, secinfo->si_namelen,
+ &exp, &dentry);
+ if (err)
+ return err;
+ if (dentry->d_inode == NULL) {
+ exp_put(exp);
+ err = nfserr_noent;
+ } else
+ secinfo->si_exp = exp;
+ dput(dentry);
+ if (cstate->minorversion)
+ /* See rfc 5661 section 2.6.3.1.1.8 */
+ fh_put(&cstate->current_fh);
+ return err;
+}
+
+static __be32
+nfsd4_secinfo_no_name(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ struct nfsd4_secinfo_no_name *sin)
+{
+ __be32 err;
+
+ switch (sin->sin_style) {
+ case NFS4_SECINFO_STYLE4_CURRENT_FH:
+ break;
+ case NFS4_SECINFO_STYLE4_PARENT:
+ err = nfsd4_do_lookupp(rqstp, &cstate->current_fh);
+ if (err)
+ return err;
+ break;
+ default:
+ return nfserr_inval;
+ }
+ exp_get(cstate->current_fh.fh_export);
+ sin->sin_exp = cstate->current_fh.fh_export;
+ fh_put(&cstate->current_fh);
+ return nfs_ok;
+}
+
+static __be32
+nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ struct nfsd4_setattr *setattr)
+{
+ __be32 status = nfs_ok;
+ int err;
+
+ if (setattr->sa_iattr.ia_valid & ATTR_SIZE) {
+ nfs4_lock_state();
+ status = nfs4_preprocess_stateid_op(cstate,
+ &setattr->sa_stateid, WR_STATE, NULL);
+ nfs4_unlock_state();
+ if (status) {
+ dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n");
+ return status;
+ }
+ }
+ err = fh_want_write(&cstate->current_fh);
+ if (err)
+ return nfserrno(err);
+ status = nfs_ok;
+
+ status = check_attr_support(rqstp, cstate, setattr->sa_bmval,
+ nfsd_attrmask);
+ if (status)
+ goto out;
+
+ if (setattr->sa_acl != NULL)
+ status = nfsd4_set_nfs4_acl(rqstp, &cstate->current_fh,
+ setattr->sa_acl);
+ if (status)
+ goto out;
+ status = nfsd_setattr(rqstp, &cstate->current_fh, &setattr->sa_iattr,
+ 0, (time_t)0);
+out:
+ fh_drop_write(&cstate->current_fh);
+ return status;
+}
+
+static __be32
+nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ struct nfsd4_write *write)
+{
+ stateid_t *stateid = &write->wr_stateid;
+ struct file *filp = NULL;
+ __be32 status = nfs_ok;
+ unsigned long cnt;
+
+ /* no need to check permission - this will be done in nfsd_write() */
+
+ if (write->wr_offset >= OFFSET_MAX)
+ return nfserr_inval;
+
+ nfs4_lock_state();
+ status = nfs4_preprocess_stateid_op(cstate, stateid, WR_STATE, &filp);
+ if (status) {
+ nfs4_unlock_state();
+ dprintk("NFSD: nfsd4_write: couldn't process stateid!\n");
+ return status;
+ }
+ if (filp)
+ get_file(filp);
+ nfs4_unlock_state();
+
+ cnt = write->wr_buflen;
+ write->wr_how_written = write->wr_stable_how;
+ gen_boot_verifier(&write->wr_verifier);
+
+ status = nfsd_write(rqstp, &cstate->current_fh, filp,
+ write->wr_offset, rqstp->rq_vec, write->wr_vlen,
+ &cnt, &write->wr_how_written);
+ if (filp)
+ fput(filp);
+
+ write->wr_bytes_written = cnt;
+
+ return status;
+}
+
+/* This routine never returns NFS_OK! If there are no other errors, it
+ * will return NFSERR_SAME or NFSERR_NOT_SAME depending on whether the
+ * attributes matched. VERIFY is implemented by mapping NFSERR_SAME
+ * to NFS_OK after the call; NVERIFY by mapping NFSERR_NOT_SAME to NFS_OK.
+ */
+static __be32
+_nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ struct nfsd4_verify *verify)
+{
+ __be32 *buf, *p;
+ int count;
+ __be32 status;
+
+ status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP);
+ if (status)
+ return status;
+
+ status = check_attr_support(rqstp, cstate, verify->ve_bmval, NULL);
+ if (status)
+ return status;
+
+ if ((verify->ve_bmval[0] & FATTR4_WORD0_RDATTR_ERROR)
+ || (verify->ve_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1))
+ return nfserr_inval;
+ if (verify->ve_attrlen & 3)
+ return nfserr_inval;
+
+ /* count in words:
+ * bitmap_len(1) + bitmap(2) + attr_len(1) = 4
+ */
+ count = 4 + (verify->ve_attrlen >> 2);
+ buf = kmalloc(count << 2, GFP_KERNEL);
+ if (!buf)
+ return nfserr_jukebox;
+
+ status = nfsd4_encode_fattr(&cstate->current_fh,
+ cstate->current_fh.fh_export,
+ cstate->current_fh.fh_dentry, buf,
+ &count, verify->ve_bmval,
+ rqstp, 0);
+
+ /* this means that nfsd4_encode_fattr() ran out of space */
+ if (status == nfserr_resource && count == 0)
+ status = nfserr_not_same;
+ if (status)
+ goto out_kfree;
+
+ /* skip bitmap */
+ p = buf + 1 + ntohl(buf[0]);
+ status = nfserr_not_same;
+ if (ntohl(*p++) != verify->ve_attrlen)
+ goto out_kfree;
+ if (!memcmp(p, verify->ve_attrval, verify->ve_attrlen))
+ status = nfserr_same;
+
+out_kfree:
+ kfree(buf);
+ return status;
+}
+
+static __be32
+nfsd4_nverify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ struct nfsd4_verify *verify)
+{
+ __be32 status;
+
+ status = _nfsd4_verify(rqstp, cstate, verify);
+ return status == nfserr_not_same ? nfs_ok : status;
+}
+
+static __be32
+nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ struct nfsd4_verify *verify)
+{
+ __be32 status;
+
+ status = _nfsd4_verify(rqstp, cstate, verify);
+ return status == nfserr_same ? nfs_ok : status;
+}
+
+/*
+ * NULL call.
+ */
+static __be32
+nfsd4_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
+{
+ return nfs_ok;
+}
+
+static inline void nfsd4_increment_op_stats(u32 opnum)
+{
+ if (opnum >= FIRST_NFS4_OP && opnum <= LAST_NFS4_OP)
+ nfsdstats.nfs4_opcount[opnum]++;
+}
+
+typedef __be32(*nfsd4op_func)(struct svc_rqst *, struct nfsd4_compound_state *,
+ void *);
+typedef u32(*nfsd4op_rsize)(struct svc_rqst *, struct nfsd4_op *op);
+typedef void(*stateid_setter)(struct nfsd4_compound_state *, void *);
+typedef void(*stateid_getter)(struct nfsd4_compound_state *, void *);
+
+enum nfsd4_op_flags {
+ ALLOWED_WITHOUT_FH = 1 << 0, /* No current filehandle required */
+ ALLOWED_ON_ABSENT_FS = 1 << 1, /* ops processed on absent fs */
+ ALLOWED_AS_FIRST_OP = 1 << 2, /* ops reqired first in compound */
+ /* For rfc 5661 section 2.6.3.1.1: */
+ OP_HANDLES_WRONGSEC = 1 << 3,
+ OP_IS_PUTFH_LIKE = 1 << 4,
+ /*
+ * These are the ops whose result size we estimate before
+ * encoding, to avoid performing an op then not being able to
+ * respond or cache a response. This includes writes and setattrs
+ * as well as the operations usually called "nonidempotent":
+ */
+ OP_MODIFIES_SOMETHING = 1 << 5,
+ /*
+ * Cache compounds containing these ops in the xid-based drc:
+ * We use the DRC for compounds containing non-idempotent
+ * operations, *except* those that are 4.1-specific (since
+ * sessions provide their own EOS), and except for stateful
+ * operations other than setclientid and setclientid_confirm
+ * (since sequence numbers provide EOS for open, lock, etc in
+ * the v4.0 case).
+ */
+ OP_CACHEME = 1 << 6,
+ /*
+ * These are ops which clear current state id.
+ */
+ OP_CLEAR_STATEID = 1 << 7,
+};
+
+struct nfsd4_operation {
+ nfsd4op_func op_func;
+ u32 op_flags;
+ char *op_name;
+ /* Try to get response size before operation */
+ nfsd4op_rsize op_rsize_bop;
+ stateid_setter op_get_currentstateid;
+ stateid_getter op_set_currentstateid;
+};
+
+static struct nfsd4_operation nfsd4_ops[];
+
+#ifdef NFSD_DEBUG
+static const char *nfsd4_op_name(unsigned opnum);
+#endif
+
+/*
+ * Enforce NFSv4.1 COMPOUND ordering rules:
+ *
+ * Also note, enforced elsewhere:
+ * - SEQUENCE other than as first op results in
+ * NFS4ERR_SEQUENCE_POS. (Enforced in nfsd4_sequence().)
+ * - BIND_CONN_TO_SESSION must be the only op in its compound.
+ * (Enforced in nfsd4_bind_conn_to_session().)
+ * - DESTROY_SESSION must be the final operation in a compound, if
+ * sessionid's in SEQUENCE and DESTROY_SESSION are the same.
+ * (Enforced in nfsd4_destroy_session().)
+ */
+static __be32 nfs41_check_op_ordering(struct nfsd4_compoundargs *args)
+{
+ struct nfsd4_op *op = &args->ops[0];
+
+ /* These ordering requirements don't apply to NFSv4.0: */
+ if (args->minorversion == 0)
+ return nfs_ok;
+ /* This is weird, but OK, not our problem: */
+ if (args->opcnt == 0)
+ return nfs_ok;
+ if (op->status == nfserr_op_illegal)
+ return nfs_ok;
+ if (!(nfsd4_ops[op->opnum].op_flags & ALLOWED_AS_FIRST_OP))
+ return nfserr_op_not_in_session;
+ if (op->opnum == OP_SEQUENCE)
+ return nfs_ok;
+ if (args->opcnt != 1)
+ return nfserr_not_only_op;
+ return nfs_ok;
+}
+
+static inline struct nfsd4_operation *OPDESC(struct nfsd4_op *op)
+{
+ return &nfsd4_ops[op->opnum];
+}
+
+bool nfsd4_cache_this_op(struct nfsd4_op *op)
+{
+ return OPDESC(op)->op_flags & OP_CACHEME;
+}
+
+static bool need_wrongsec_check(struct svc_rqst *rqstp)
+{
+ struct nfsd4_compoundres *resp = rqstp->rq_resp;
+ struct nfsd4_compoundargs *argp = rqstp->rq_argp;
+ struct nfsd4_op *this = &argp->ops[resp->opcnt - 1];
+ struct nfsd4_op *next = &argp->ops[resp->opcnt];
+ struct nfsd4_operation *thisd;
+ struct nfsd4_operation *nextd;
+
+ thisd = OPDESC(this);
+ /*
+ * Most ops check wronsec on our own; only the putfh-like ops
+ * have special rules.
+ */
+ if (!(thisd->op_flags & OP_IS_PUTFH_LIKE))
+ return false;
+ /*
+ * rfc 5661 2.6.3.1.1.6: don't bother erroring out a
+ * put-filehandle operation if we're not going to use the
+ * result:
+ */
+ if (argp->opcnt == resp->opcnt)
+ return false;
+ if (next->opnum == OP_ILLEGAL)
+ return false;
+ nextd = OPDESC(next);
+ /*
+ * Rest of 2.6.3.1.1: certain operations will return WRONGSEC
+ * errors themselves as necessary; others should check for them
+ * now:
+ */
+ return !(nextd->op_flags & OP_HANDLES_WRONGSEC);
+}
+
+/*
+ * COMPOUND call.
+ */
+static __be32
+nfsd4_proc_compound(struct svc_rqst *rqstp,
+ struct nfsd4_compoundargs *args,
+ struct nfsd4_compoundres *resp)
+{
+ struct nfsd4_op *op;
+ struct nfsd4_operation *opdesc;
+ struct nfsd4_compound_state *cstate = &resp->cstate;
+ int slack_bytes;
+ u32 plen = 0;
+ __be32 status;
+
+ resp->xbuf = &rqstp->rq_res;
+ resp->p = rqstp->rq_res.head[0].iov_base +
+ rqstp->rq_res.head[0].iov_len;
+ resp->tagp = resp->p;
+ /* reserve space for: taglen, tag, and opcnt */
+ resp->p += 2 + XDR_QUADLEN(args->taglen);
+ resp->end = rqstp->rq_res.head[0].iov_base + PAGE_SIZE;
+ resp->taglen = args->taglen;
+ resp->tag = args->tag;
+ resp->opcnt = 0;
+ resp->rqstp = rqstp;
+ resp->cstate.minorversion = args->minorversion;
+ resp->cstate.replay_owner = NULL;
+ resp->cstate.session = NULL;
+ fh_init(&resp->cstate.current_fh, NFS4_FHSIZE);
+ fh_init(&resp->cstate.save_fh, NFS4_FHSIZE);
+ /*
+ * Don't use the deferral mechanism for NFSv4; compounds make it
+ * too hard to avoid non-idempotency problems.
+ */
+ rqstp->rq_usedeferral = 0;
+
+ /*
+ * According to RFC3010, this takes precedence over all other errors.
+ */
+ status = nfserr_minor_vers_mismatch;
+ if (args->minorversion > nfsd_supported_minorversion)
+ goto out;
+
+ status = nfs41_check_op_ordering(args);
+ if (status) {
+ op = &args->ops[0];
+ op->status = status;
+ goto encode_op;
+ }
+
+ while (!status && resp->opcnt < args->opcnt) {
+ op = &args->ops[resp->opcnt++];
+
+ dprintk("nfsv4 compound op #%d/%d: %d (%s)\n",
+ resp->opcnt, args->opcnt, op->opnum,
+ nfsd4_op_name(op->opnum));
+ /*
+ * The XDR decode routines may have pre-set op->status;
+ * for example, if there is a miscellaneous XDR error
+ * it will be set to nfserr_bad_xdr.
+ */
+ if (op->status)
+ goto encode_op;
+
+ /* We must be able to encode a successful response to
+ * this operation, with enough room left over to encode a
+ * failed response to the next operation. If we don't
+ * have enough room, fail with ERR_RESOURCE.
+ */
+ slack_bytes = (char *)resp->end - (char *)resp->p;
+ if (slack_bytes < COMPOUND_SLACK_SPACE
+ + COMPOUND_ERR_SLACK_SPACE) {
+ BUG_ON(slack_bytes < COMPOUND_ERR_SLACK_SPACE);
+ op->status = nfserr_resource;
+ goto encode_op;
+ }
+
+ opdesc = OPDESC(op);
+
+ if (!cstate->current_fh.fh_dentry) {
+ if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) {
+ op->status = nfserr_nofilehandle;
+ goto encode_op;
+ }
+ } else if (cstate->current_fh.fh_export->ex_fslocs.migrated &&
+ !(opdesc->op_flags & ALLOWED_ON_ABSENT_FS)) {
+ op->status = nfserr_moved;
+ goto encode_op;
+ }
+
+ /* If op is non-idempotent */
+ if (opdesc->op_flags & OP_MODIFIES_SOMETHING) {
+ plen = opdesc->op_rsize_bop(rqstp, op);
+ /*
+ * If there's still another operation, make sure
+ * we'll have space to at least encode an error:
+ */
+ if (resp->opcnt < args->opcnt)
+ plen += COMPOUND_ERR_SLACK_SPACE;
+ op->status = nfsd4_check_resp_size(resp, plen);
+ }
+
+ if (op->status)
+ goto encode_op;
+
+ if (opdesc->op_func) {
+ if (opdesc->op_get_currentstateid)
+ opdesc->op_get_currentstateid(cstate, &op->u);
+ op->status = opdesc->op_func(rqstp, cstate, &op->u);
+ } else
+ BUG_ON(op->status == nfs_ok);
+
+ if (!op->status) {
+ if (opdesc->op_set_currentstateid)
+ opdesc->op_set_currentstateid(cstate, &op->u);
+
+ if (opdesc->op_flags & OP_CLEAR_STATEID)
+ clear_current_stateid(cstate);
+
+ if (need_wrongsec_check(rqstp))
+ op->status = check_nfsd_access(cstate->current_fh.fh_export, rqstp);
+ }
+
+encode_op:
+ /* Only from SEQUENCE */
+ if (resp->cstate.status == nfserr_replay_cache) {
+ dprintk("%s NFS4.1 replay from cache\n", __func__);
+ status = op->status;
+ goto out;
+ }
+ if (op->status == nfserr_replay_me) {
+ op->replay = &cstate->replay_owner->so_replay;
+ nfsd4_encode_replay(resp, op);
+ status = op->status = op->replay->rp_status;
+ } else {
+ nfsd4_encode_operation(resp, op);
+ status = op->status;
+ }
+
+ dprintk("nfsv4 compound op %p opcnt %d #%d: %d: status %d\n",
+ args->ops, args->opcnt, resp->opcnt, op->opnum,
+ be32_to_cpu(status));
+
+ if (cstate->replay_owner) {
+ nfs4_unlock_state();
+ cstate->replay_owner = NULL;
+ }
+ /* XXX Ugh, we need to get rid of this kind of special case: */
+ if (op->opnum == OP_READ && op->u.read.rd_filp)
+ fput(op->u.read.rd_filp);
+
+ nfsd4_increment_op_stats(op->opnum);
+ }
+
+ resp->cstate.status = status;
+ fh_put(&resp->cstate.current_fh);
+ fh_put(&resp->cstate.save_fh);
+ BUG_ON(resp->cstate.replay_owner);
+out:
+ /* Reset deferral mechanism for RPC deferrals */
+ rqstp->rq_usedeferral = 1;
+ dprintk("nfsv4 compound returned %d\n", ntohl(status));
+ return status;
+}
+
+#define op_encode_hdr_size (2)
+#define op_encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
+#define op_encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
+#define op_encode_change_info_maxsz (5)
+#define nfs4_fattr_bitmap_maxsz (4)
+
+#define op_encode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
+#define op_encode_lock_denied_maxsz (8 + op_encode_lockowner_maxsz)
+
+#define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
+
+#define op_encode_ace_maxsz (3 + nfs4_owner_maxsz)
+#define op_encode_delegation_maxsz (1 + op_encode_stateid_maxsz + 1 + \
+ op_encode_ace_maxsz)
+
+#define op_encode_channel_attrs_maxsz (6 + 1 + 1)
+
+static inline u32 nfsd4_only_status_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
+{
+ return (op_encode_hdr_size) * sizeof(__be32);
+}
+
+static inline u32 nfsd4_status_stateid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
+{
+ return (op_encode_hdr_size + op_encode_stateid_maxsz)* sizeof(__be32);
+}
+
+static inline u32 nfsd4_commit_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
+{
+ return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32);
+}
+
+static inline u32 nfsd4_create_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
+{
+ return (op_encode_hdr_size + op_encode_change_info_maxsz
+ + nfs4_fattr_bitmap_maxsz) * sizeof(__be32);
+}
+
+static inline u32 nfsd4_link_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
+{
+ return (op_encode_hdr_size + op_encode_change_info_maxsz)
+ * sizeof(__be32);
+}
+
+static inline u32 nfsd4_lock_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
+{
+ return (op_encode_hdr_size + op_encode_lock_denied_maxsz)
+ * sizeof(__be32);
+}
+
+static inline u32 nfsd4_open_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
+{
+ return (op_encode_hdr_size + op_encode_stateid_maxsz
+ + op_encode_change_info_maxsz + 1
+ + nfs4_fattr_bitmap_maxsz
+ + op_encode_delegation_maxsz) * sizeof(__be32);
+}
+
+static inline u32 nfsd4_read_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
+{
+ u32 maxcount = 0, rlen = 0;
+
+ maxcount = svc_max_payload(rqstp);
+ rlen = op->u.read.rd_length;
+
+ if (rlen > maxcount)
+ rlen = maxcount;
+
+ return (op_encode_hdr_size + 2) * sizeof(__be32) + rlen;
+}
+
+static inline u32 nfsd4_readdir_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
+{
+ u32 rlen = op->u.readdir.rd_maxcount;
+
+ if (rlen > PAGE_SIZE)
+ rlen = PAGE_SIZE;
+
+ return (op_encode_hdr_size + op_encode_verifier_maxsz)
+ * sizeof(__be32) + rlen;
+}
+
+static inline u32 nfsd4_remove_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
+{
+ return (op_encode_hdr_size + op_encode_change_info_maxsz)
+ * sizeof(__be32);
+}
+
+static inline u32 nfsd4_rename_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
+{
+ return (op_encode_hdr_size + op_encode_change_info_maxsz
+ + op_encode_change_info_maxsz) * sizeof(__be32);
+}
+
+static inline u32 nfsd4_setattr_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
+{
+ return (op_encode_hdr_size + nfs4_fattr_bitmap_maxsz) * sizeof(__be32);
+}
+
+static inline u32 nfsd4_setclientid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
+{
+ return (op_encode_hdr_size + 2 + XDR_QUADLEN(NFS4_VERIFIER_SIZE)) *
+ sizeof(__be32);
+}
+
+static inline u32 nfsd4_write_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
+{
+ return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32);
+}
+
+static inline u32 nfsd4_exchange_id_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
+{
+ return (op_encode_hdr_size + 2 + 1 + /* eir_clientid, eir_sequenceid */\
+ 1 + 1 + 0 + /* eir_flags, spr_how, SP4_NONE (for now) */\
+ 2 + /*eir_server_owner.so_minor_id */\
+ /* eir_server_owner.so_major_id<> */\
+ XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\
+ /* eir_server_scope<> */\
+ XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\
+ 1 + /* eir_server_impl_id array length */\
+ 0 /* ignored eir_server_impl_id contents */) * sizeof(__be32);
+}
+
+static inline u32 nfsd4_bind_conn_to_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
+{
+ return (op_encode_hdr_size + \
+ XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* bctsr_sessid */\
+ 2 /* bctsr_dir, use_conn_in_rdma_mode */) * sizeof(__be32);
+}
+
+static inline u32 nfsd4_create_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
+{
+ return (op_encode_hdr_size + \
+ XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* sessionid */\
+ 2 + /* csr_sequence, csr_flags */\
+ op_encode_channel_attrs_maxsz + \
+ op_encode_channel_attrs_maxsz) * sizeof(__be32);
+}
+
+static struct nfsd4_operation nfsd4_ops[] = {
+ [OP_ACCESS] = {
+ .op_func = (nfsd4op_func)nfsd4_access,
+ .op_name = "OP_ACCESS",
+ },
+ [OP_CLOSE] = {
+ .op_func = (nfsd4op_func)nfsd4_close,
+ .op_flags = OP_MODIFIES_SOMETHING,
+ .op_name = "OP_CLOSE",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
+ .op_get_currentstateid = (stateid_getter)nfsd4_get_closestateid,
+ .op_set_currentstateid = (stateid_setter)nfsd4_set_closestateid,
+ },
+ [OP_COMMIT] = {
+ .op_func = (nfsd4op_func)nfsd4_commit,
+ .op_flags = OP_MODIFIES_SOMETHING,
+ .op_name = "OP_COMMIT",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_commit_rsize,
+ },
+ [OP_CREATE] = {
+ .op_func = (nfsd4op_func)nfsd4_create,
+ .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME | OP_CLEAR_STATEID,
+ .op_name = "OP_CREATE",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_rsize,
+ },
+ [OP_DELEGRETURN] = {
+ .op_func = (nfsd4op_func)nfsd4_delegreturn,
+ .op_flags = OP_MODIFIES_SOMETHING,
+ .op_name = "OP_DELEGRETURN",
+ .op_rsize_bop = nfsd4_only_status_rsize,
+ .op_get_currentstateid = (stateid_getter)nfsd4_get_delegreturnstateid,
+ },
+ [OP_GETATTR] = {
+ .op_func = (nfsd4op_func)nfsd4_getattr,
+ .op_flags = ALLOWED_ON_ABSENT_FS,
+ .op_name = "OP_GETATTR",
+ },
+ [OP_GETFH] = {
+ .op_func = (nfsd4op_func)nfsd4_getfh,
+ .op_name = "OP_GETFH",
+ },
+ [OP_LINK] = {
+ .op_func = (nfsd4op_func)nfsd4_link,
+ .op_flags = ALLOWED_ON_ABSENT_FS | OP_MODIFIES_SOMETHING
+ | OP_CACHEME,
+ .op_name = "OP_LINK",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_link_rsize,
+ },
+ [OP_LOCK] = {
+ .op_func = (nfsd4op_func)nfsd4_lock,
+ .op_flags = OP_MODIFIES_SOMETHING,
+ .op_name = "OP_LOCK",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_lock_rsize,
+ .op_set_currentstateid = (stateid_setter)nfsd4_set_lockstateid,
+ },
+ [OP_LOCKT] = {
+ .op_func = (nfsd4op_func)nfsd4_lockt,
+ .op_name = "OP_LOCKT",
+ },
+ [OP_LOCKU] = {
+ .op_func = (nfsd4op_func)nfsd4_locku,
+ .op_flags = OP_MODIFIES_SOMETHING,
+ .op_name = "OP_LOCKU",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
+ .op_get_currentstateid = (stateid_getter)nfsd4_get_lockustateid,
+ },
+ [OP_LOOKUP] = {
+ .op_func = (nfsd4op_func)nfsd4_lookup,
+ .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID,
+ .op_name = "OP_LOOKUP",
+ },
+ [OP_LOOKUPP] = {
+ .op_func = (nfsd4op_func)nfsd4_lookupp,
+ .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID,
+ .op_name = "OP_LOOKUPP",
+ },
+ [OP_NVERIFY] = {
+ .op_func = (nfsd4op_func)nfsd4_nverify,
+ .op_name = "OP_NVERIFY",
+ },
+ [OP_OPEN] = {
+ .op_func = (nfsd4op_func)nfsd4_open,
+ .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING,
+ .op_name = "OP_OPEN",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_open_rsize,
+ .op_set_currentstateid = (stateid_setter)nfsd4_set_openstateid,
+ },
+ [OP_OPEN_CONFIRM] = {
+ .op_func = (nfsd4op_func)nfsd4_open_confirm,
+ .op_flags = OP_MODIFIES_SOMETHING,
+ .op_name = "OP_OPEN_CONFIRM",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
+ },
+ [OP_OPEN_DOWNGRADE] = {
+ .op_func = (nfsd4op_func)nfsd4_open_downgrade,
+ .op_flags = OP_MODIFIES_SOMETHING,
+ .op_name = "OP_OPEN_DOWNGRADE",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
+ .op_get_currentstateid = (stateid_getter)nfsd4_get_opendowngradestateid,
+ .op_set_currentstateid = (stateid_setter)nfsd4_set_opendowngradestateid,
+ },
+ [OP_PUTFH] = {
+ .op_func = (nfsd4op_func)nfsd4_putfh,
+ .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
+ | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING
+ | OP_CLEAR_STATEID,
+ .op_name = "OP_PUTFH",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+ },
+ [OP_PUTPUBFH] = {
+ .op_func = (nfsd4op_func)nfsd4_putrootfh,
+ .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
+ | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING
+ | OP_CLEAR_STATEID,
+ .op_name = "OP_PUTPUBFH",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+ },
+ [OP_PUTROOTFH] = {
+ .op_func = (nfsd4op_func)nfsd4_putrootfh,
+ .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
+ | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING
+ | OP_CLEAR_STATEID,
+ .op_name = "OP_PUTROOTFH",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+ },
+ [OP_READ] = {
+ .op_func = (nfsd4op_func)nfsd4_read,
+ .op_flags = OP_MODIFIES_SOMETHING,
+ .op_name = "OP_READ",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_read_rsize,
+ .op_get_currentstateid = (stateid_getter)nfsd4_get_readstateid,
+ },
+ [OP_READDIR] = {
+ .op_func = (nfsd4op_func)nfsd4_readdir,
+ .op_flags = OP_MODIFIES_SOMETHING,
+ .op_name = "OP_READDIR",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_readdir_rsize,
+ },
+ [OP_READLINK] = {
+ .op_func = (nfsd4op_func)nfsd4_readlink,
+ .op_name = "OP_READLINK",
+ },
+ [OP_REMOVE] = {
+ .op_func = (nfsd4op_func)nfsd4_remove,
+ .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
+ .op_name = "OP_REMOVE",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_remove_rsize,
+ },
+ [OP_RENAME] = {
+ .op_func = (nfsd4op_func)nfsd4_rename,
+ .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
+ .op_name = "OP_RENAME",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_rename_rsize,
+ },
+ [OP_RENEW] = {
+ .op_func = (nfsd4op_func)nfsd4_renew,
+ .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
+ | OP_MODIFIES_SOMETHING,
+ .op_name = "OP_RENEW",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+
+ },
+ [OP_RESTOREFH] = {
+ .op_func = (nfsd4op_func)nfsd4_restorefh,
+ .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
+ | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING,
+ .op_name = "OP_RESTOREFH",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+ },
+ [OP_SAVEFH] = {
+ .op_func = (nfsd4op_func)nfsd4_savefh,
+ .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING,
+ .op_name = "OP_SAVEFH",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+ },
+ [OP_SECINFO] = {
+ .op_func = (nfsd4op_func)nfsd4_secinfo,
+ .op_flags = OP_HANDLES_WRONGSEC,
+ .op_name = "OP_SECINFO",
+ },
+ [OP_SETATTR] = {
+ .op_func = (nfsd4op_func)nfsd4_setattr,
+ .op_name = "OP_SETATTR",
+ .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_setattr_rsize,
+ .op_get_currentstateid = (stateid_getter)nfsd4_get_setattrstateid,
+ },
+ [OP_SETCLIENTID] = {
+ .op_func = (nfsd4op_func)nfsd4_setclientid,
+ .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
+ | OP_MODIFIES_SOMETHING | OP_CACHEME,
+ .op_name = "OP_SETCLIENTID",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_setclientid_rsize,
+ },
+ [OP_SETCLIENTID_CONFIRM] = {
+ .op_func = (nfsd4op_func)nfsd4_setclientid_confirm,
+ .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
+ | OP_MODIFIES_SOMETHING | OP_CACHEME,
+ .op_name = "OP_SETCLIENTID_CONFIRM",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+ },
+ [OP_VERIFY] = {
+ .op_func = (nfsd4op_func)nfsd4_verify,
+ .op_name = "OP_VERIFY",
+ },
+ [OP_WRITE] = {
+ .op_func = (nfsd4op_func)nfsd4_write,
+ .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
+ .op_name = "OP_WRITE",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_write_rsize,
+ .op_get_currentstateid = (stateid_getter)nfsd4_get_writestateid,
+ },
+ [OP_RELEASE_LOCKOWNER] = {
+ .op_func = (nfsd4op_func)nfsd4_release_lockowner,
+ .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
+ | OP_MODIFIES_SOMETHING,
+ .op_name = "OP_RELEASE_LOCKOWNER",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+ },
+
+ /* NFSv4.1 operations */
+ [OP_EXCHANGE_ID] = {
+ .op_func = (nfsd4op_func)nfsd4_exchange_id,
+ .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
+ | OP_MODIFIES_SOMETHING,
+ .op_name = "OP_EXCHANGE_ID",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_exchange_id_rsize,
+ },
+ [OP_BIND_CONN_TO_SESSION] = {
+ .op_func = (nfsd4op_func)nfsd4_bind_conn_to_session,
+ .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
+ | OP_MODIFIES_SOMETHING,
+ .op_name = "OP_BIND_CONN_TO_SESSION",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_bind_conn_to_session_rsize,
+ },
+ [OP_CREATE_SESSION] = {
+ .op_func = (nfsd4op_func)nfsd4_create_session,
+ .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
+ | OP_MODIFIES_SOMETHING,
+ .op_name = "OP_CREATE_SESSION",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_session_rsize,
+ },
+ [OP_DESTROY_SESSION] = {
+ .op_func = (nfsd4op_func)nfsd4_destroy_session,
+ .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
+ | OP_MODIFIES_SOMETHING,
+ .op_name = "OP_DESTROY_SESSION",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+ },
+ [OP_SEQUENCE] = {
+ .op_func = (nfsd4op_func)nfsd4_sequence,
+ .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP,
+ .op_name = "OP_SEQUENCE",
+ },
+ [OP_DESTROY_CLIENTID] = {
+ .op_func = (nfsd4op_func)nfsd4_destroy_clientid,
+ .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
+ | OP_MODIFIES_SOMETHING,
+ .op_name = "OP_DESTROY_CLIENTID",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+ },
+ [OP_RECLAIM_COMPLETE] = {
+ .op_func = (nfsd4op_func)nfsd4_reclaim_complete,
+ .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING,
+ .op_name = "OP_RECLAIM_COMPLETE",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+ },
+ [OP_SECINFO_NO_NAME] = {
+ .op_func = (nfsd4op_func)nfsd4_secinfo_no_name,
+ .op_flags = OP_HANDLES_WRONGSEC,
+ .op_name = "OP_SECINFO_NO_NAME",
+ },
+ [OP_TEST_STATEID] = {
+ .op_func = (nfsd4op_func)nfsd4_test_stateid,
+ .op_flags = ALLOWED_WITHOUT_FH,
+ .op_name = "OP_TEST_STATEID",
+ },
+ [OP_FREE_STATEID] = {
+ .op_func = (nfsd4op_func)nfsd4_free_stateid,
+ .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING,
+ .op_name = "OP_FREE_STATEID",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+ },
+};
+
+#ifdef NFSD_DEBUG
+static const char *nfsd4_op_name(unsigned opnum)
+{
+ if (opnum < ARRAY_SIZE(nfsd4_ops))
+ return nfsd4_ops[opnum].op_name;
+ return "unknown_operation";
+}
+#endif
+
+#define nfsd4_voidres nfsd4_voidargs
+struct nfsd4_voidargs { int dummy; };
+
+static struct svc_procedure nfsd_procedures4[2] = {
+ [NFSPROC4_NULL] = {
+ .pc_func = (svc_procfunc) nfsd4_proc_null,
+ .pc_encode = (kxdrproc_t) nfs4svc_encode_voidres,
+ .pc_argsize = sizeof(struct nfsd4_voidargs),
+ .pc_ressize = sizeof(struct nfsd4_voidres),
+ .pc_cachetype = RC_NOCACHE,
+ .pc_xdrressize = 1,
+ },
+ [NFSPROC4_COMPOUND] = {
+ .pc_func = (svc_procfunc) nfsd4_proc_compound,
+ .pc_decode = (kxdrproc_t) nfs4svc_decode_compoundargs,
+ .pc_encode = (kxdrproc_t) nfs4svc_encode_compoundres,
+ .pc_argsize = sizeof(struct nfsd4_compoundargs),
+ .pc_ressize = sizeof(struct nfsd4_compoundres),
+ .pc_release = nfsd4_release_compoundargs,
+ .pc_cachetype = RC_NOCACHE,
+ .pc_xdrressize = NFSD_BUFSIZE/4,
+ },
+};
+
+struct svc_version nfsd_version4 = {
+ .vs_vers = 4,
+ .vs_nproc = 2,
+ .vs_proc = nfsd_procedures4,
+ .vs_dispatch = nfsd_dispatch,
+ .vs_xdrsize = NFS4_SVC_XDRSIZE,
+};
+
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */