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reactos/base/services/nfsd/nfs41_ops.c

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/* NFSv4.1 client for Windows
* Copyright © 2012 The Regents of the University of Michigan
*
* Olga Kornievskaia <aglo@umich.edu>
* Casey Bodley <cbodley@umich.edu>
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or (at
* your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* without any warranty; without even the implied warranty of merchantability
* or fitness for a particular purpose. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA
*/
#include <windows.h>
#include <strsafe.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include "nfs41_ops.h"
#include "nfs41_compound.h"
#include "nfs41_xdr.h"
#include "name_cache.h"
#include "delegation.h"
#include "daemon_debug.h"
#include "util.h"
int nfs41_exchange_id(
IN nfs41_rpc_clnt *rpc,
IN client_owner4 *owner,
IN uint32_t flags_in,
OUT nfs41_exchange_id_res *res_out)
{
int status = 0;
nfs41_compound compound;
nfs_argop4 argop;
nfs_resop4 resop;
nfs41_exchange_id_args ex_id;
compound_init(&compound, &argop, &resop, "exchange_id");
compound_add_op(&compound, OP_EXCHANGE_ID, &ex_id, res_out);
ex_id.eia_clientowner = owner;
ex_id.eia_flags = flags_in;
ex_id.eia_state_protect.spa_how = SP4_NONE;
ex_id.eia_client_impl_id = NULL;
res_out->server_owner.so_major_id_len = NFS4_OPAQUE_LIMIT;
res_out->server_scope_len = NFS4_OPAQUE_LIMIT;
status = nfs41_send_compound(rpc, (char *)&compound.args,
(char *)&compound.res);
if (status)
goto out;
compound_error(status = compound.res.status);
out:
return status;
}
// AGLO: 10/07/2009 we might want lookup these values from the registry
static int set_fore_channel_attrs(
IN nfs41_rpc_clnt *rpc,
IN uint32_t max_req,
OUT nfs41_channel_attrs *attrs)
{
attrs->ca_headerpadsize = 0;
attrs->ca_maxrequestsize = rpc->wsize;
attrs->ca_maxresponsesize = rpc->rsize;
attrs->ca_maxresponsesize_cached = NFS41_MAX_SERVER_CACHE;
attrs->ca_maxoperations = 0xffffffff;
attrs->ca_maxrequests = max_req;
attrs->ca_rdma_ird = NULL;
return 0;
}
// AGLO: 10/07/2009 we might want lookup these values from the registry
static int set_back_channel_attrs(
IN nfs41_rpc_clnt *rpc,
IN uint32_t max_req,
OUT nfs41_channel_attrs *attrs)
{
attrs->ca_headerpadsize = 0;
attrs->ca_maxrequestsize = rpc->wsize;
attrs->ca_maxresponsesize = rpc->rsize;
attrs->ca_maxresponsesize_cached = NFS41_MAX_SERVER_CACHE;
attrs->ca_maxoperations = 0xffffffff;
attrs->ca_maxrequests = max_req;
attrs->ca_rdma_ird = NULL;
return 0;
}
int nfs41_create_session(nfs41_client *clnt, nfs41_session *session, bool_t try_recovery)
{
int status = 0;
nfs41_compound compound;
nfs_argop4 argop;
nfs_resop4 resop;
nfs41_create_session_args req = { 0 };
nfs41_create_session_res reply = { 0 };
compound_init(&compound, &argop, &resop, "create_session");
compound_add_op(&compound, OP_CREATE_SESSION, &req, &reply);
AcquireSRWLockShared(&clnt->exid_lock);
req.csa_clientid = clnt->clnt_id;
req.csa_sequence = clnt->seq_id;
ReleaseSRWLockShared(&clnt->exid_lock);
req.csa_flags = session->flags;
req.csa_cb_program = NFS41_RPC_CBPROGRAM;
req.csa_cb_secparams[0].type = 0; /* AUTH_NONE */
req.csa_cb_secparams[1].type = 1; /* AUTH_SYS */
req.csa_cb_secparams[1].u.auth_sys.machinename = clnt->rpc->server_name;
req.csa_cb_secparams[1].u.auth_sys.stamp = (uint32_t)time(NULL);
// ca_maxrequests should be gotten from the rpc layer
set_fore_channel_attrs(clnt->rpc,
NFS41_MAX_RPC_REQS, &req.csa_fore_chan_attrs);
set_back_channel_attrs(clnt->rpc,
1, &req.csa_back_chan_attrs);
reply.csr_sessionid = session->session_id;
reply.csr_fore_chan_attrs = &session->fore_chan_attrs;
reply.csr_back_chan_attrs = &session->back_chan_attrs;
status = compound_encode_send_decode(session, &compound, try_recovery);
if (status)
goto out;
if (compound_error(status = compound.res.status))
goto out;
print_hexbuf(1, (unsigned char *)"session id: ", session->session_id, NFS4_SESSIONID_SIZE);
// check that csa_sequence is same as csr_sequence
if (reply.csr_sequence != clnt->seq_id) {
eprintf("ERROR: CREATE_SESSION: csa_sequence %d != "
"csr_sequence %d\n", clnt->seq_id, reply.csr_sequence);
status = NFS4ERR_SEQ_MISORDERED;
goto out;
} else clnt->seq_id++;
if (reply.csr_flags != req.csa_flags) {
eprintf("WARNING: requested session flags %x received %x\n",
req.csa_flags, reply.csr_flags);
if ((session->flags & CREATE_SESSION4_FLAG_CONN_BACK_CHAN) &&
!(reply.csr_flags & CREATE_SESSION4_FLAG_CONN_BACK_CHAN))
eprintf("WARNING: we asked to use this session for callbacks but "
"server refused\n");
if ((session->flags & CREATE_SESSION4_FLAG_PERSIST) &&
!(reply.csr_flags & CREATE_SESSION4_FLAG_PERSIST))
eprintf("WARNING: we asked for persistent session but "
"server refused\n");
session->flags = reply.csr_flags;
}
else
dprintf(1, "session flags %x\n", reply.csr_flags);
dprintf(1, "session fore_chan_attrs:\n"
" %-32s%d\n %-32s%d\n %-32s%d\n %-32s%d\n %-32s%d\n %-32s%d\n",
"headerpadsize", session->fore_chan_attrs.ca_headerpadsize,
"maxrequestsize", session->fore_chan_attrs.ca_maxrequestsize,
"maxresponsesize", session->fore_chan_attrs.ca_maxresponsesize,
"maxresponsesize_cached", session->fore_chan_attrs.ca_maxresponsesize_cached,
"maxoperations", session->fore_chan_attrs.ca_maxoperations,
"maxrequests", session->fore_chan_attrs.ca_maxrequests);
dprintf(1, "client supports %d max rpc slots, but server has %d\n",
session->table.max_slots, session->fore_chan_attrs.ca_maxrequests);
/* use the server's ca_maxrequests unless it's bigger than our array */
session->table.max_slots = min(session->table.max_slots,
session->fore_chan_attrs.ca_maxrequests);
status = 0;
out:
return status;
}
enum nfsstat4 nfs41_bind_conn_to_session(
IN nfs41_rpc_clnt *rpc,
IN const unsigned char *sessionid,
IN enum channel_dir_from_client4 dir)
{
int status;
nfs41_compound compound;
nfs_argop4 argop;
nfs_resop4 resop;
nfs41_bind_conn_to_session_args bind_args = { 0 };
nfs41_bind_conn_to_session_res bind_res = { 0 };
compound_init(&compound, &argop, &resop, "bind_conn_to_session");
compound_add_op(&compound, OP_BIND_CONN_TO_SESSION, &bind_args, &bind_res);
bind_args.sessionid = (unsigned char *)sessionid;
bind_args.dir = dir;
status = nfs41_send_compound(rpc,
(char*)&compound.args, (char*)&compound.res);
if (status)
goto out;
compound_error(status = compound.res.status);
out:
return status;
}
int nfs41_destroy_session(
IN nfs41_session *session)
{
int status;
nfs41_compound compound;
nfs_argop4 argop;
nfs_resop4 resop;
nfs41_destroy_session_args ds_args;
nfs41_destroy_session_res ds_res;
compound_init(&compound, &argop, &resop, "destroy_session");
compound_add_op(&compound, OP_DESTROY_SESSION, &ds_args, &ds_res);
ds_args.dsa_sessionid = session->session_id;
/* don't attempt to recover from BADSESSION/STALE_CLIENTID */
status = compound_encode_send_decode(session, &compound, FALSE);
if (status)
goto out;
status = compound.res.status;
if (status)
eprintf("%s failed with status %d.\n",
nfs_opnum_to_string(OP_DESTROY_SESSION), status);
out:
return status;
}
int nfs41_destroy_clientid(
IN nfs41_rpc_clnt *rpc,
IN uint64_t clientid)
{
int status;
nfs41_compound compound;
nfs_argop4 argops;
nfs_resop4 resops;
nfs41_destroy_clientid_args dc_args;
nfs41_destroy_clientid_res dc_res;
compound_init(&compound, &argops, &resops, "destroy_clientid");
compound_add_op(&compound, OP_DESTROY_CLIENTID, &dc_args, &dc_res);
dc_args.dca_clientid = clientid;
status = nfs41_send_compound(rpc, (char *)&compound.args,
(char *)&compound.res);
if (status)
goto out;
compound_error(status = compound.res.status);
out:
return status;
}
enum nfsstat4 nfs41_reclaim_complete(
IN nfs41_session *session)
{
enum nfsstat4 status = NFS4_OK;
nfs41_compound compound;
nfs_argop4 argops[2];
nfs_resop4 resops[2];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_reclaim_complete_res reclaim_res;
compound_init(&compound, argops, resops, "reclaim_complete");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 0);
compound_add_op(&compound, OP_RECLAIM_COMPLETE, NULL, &reclaim_res);
/* don't attempt to recover from BADSESSION */
status = compound_encode_send_decode(session, &compound, FALSE);
if (status)
goto out;
compound_error(status = compound.res.status);
out:
return status;
}
static void open_delegation_return(
IN nfs41_session *session,
IN nfs41_path_fh *file,
IN open_delegation4 *delegation,
IN bool_t try_recovery)
{
stateid_arg stateid;
int status;
if (delegation->type == OPEN_DELEGATE_NONE ||
delegation->type == OPEN_DELEGATE_NONE_EXT)
return;
/* return the delegation */
stateid.open = NULL;
stateid.delegation = NULL;
stateid.type = STATEID_DELEG_FILE;
memcpy(&stateid.stateid, &delegation->stateid, sizeof(stateid4));
status = nfs41_delegreturn(session, file, &stateid, try_recovery);
/* clear the delegation type returned by nfs41_open() */
delegation->type = OPEN_DELEGATE_NONE;
}
static void open_update_cache(
IN nfs41_session *session,
IN nfs41_path_fh *parent,
IN nfs41_path_fh *file,
IN bool_t try_recovery,
IN open_delegation4 *delegation,
IN bool_t already_delegated,
IN change_info4 *changeinfo,
IN nfs41_getattr_res *dir_attrs,
IN nfs41_getattr_res *file_attrs)
{
struct nfs41_name_cache *cache = session_name_cache(session);
uint32_t status;
/* update the attributes of the parent directory */
memcpy(&dir_attrs->info->attrmask, &dir_attrs->obj_attributes.attrmask,
sizeof(bitmap4));
nfs41_attr_cache_update(cache, parent->fh.fileid, dir_attrs->info);
/* add the file handle and attributes to the name cache */
memcpy(&file_attrs->info->attrmask, &file_attrs->obj_attributes.attrmask,
sizeof(bitmap4));
retry_cache_insert:
AcquireSRWLockShared(&file->path->lock);
status = nfs41_name_cache_insert(cache, file->path->path, &file->name,
&file->fh, file_attrs->info, changeinfo,
already_delegated ? OPEN_DELEGATE_NONE : delegation->type);
ReleaseSRWLockShared(&file->path->lock);
if (status == ERROR_TOO_MANY_OPEN_FILES) {
/* the cache won't accept any more delegations; ask the client to
* return a delegation to free up a slot in the attribute cache */
status = nfs41_client_delegation_return_lru(session->client);
if (status == NFS4_OK)
goto retry_cache_insert;
}
if (status && delegation->type != OPEN_DELEGATE_NONE) {
/* if we can't make room in the cache, return this
* delegation immediately to free resources on the server */
open_delegation_return(session, file, delegation, try_recovery);
goto retry_cache_insert;
}
}
int nfs41_open(
IN nfs41_session *session,
IN nfs41_path_fh *parent,
IN nfs41_path_fh *file,
IN state_owner4 *owner,
IN open_claim4 *claim,
IN uint32_t allow,
IN uint32_t deny,
IN uint32_t create,
IN uint32_t how_mode,
IN OPTIONAL nfs41_file_info *createattrs,
IN bool_t try_recovery,
OUT stateid4 *stateid,
OUT open_delegation4 *delegation,
OUT OPTIONAL nfs41_file_info *info)
{
int status;
nfs41_compound compound;
nfs_argop4 argops[8];
nfs_resop4 resops[8];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args putfh_args[2];
nfs41_putfh_res putfh_res[2];
nfs41_op_open_args open_args;
nfs41_op_open_res open_res;
nfs41_getfh_res getfh_res;
bitmap4 attr_request;
nfs41_getattr_args getattr_args;
nfs41_getattr_res getattr_res, pgetattr_res;
nfs41_savefh_res savefh_res;
nfs41_restorefh_res restorefh_res;
nfs41_file_info tmp_info, dir_info;
bool_t current_fh_is_dir;
bool_t already_delegated = delegation->type == OPEN_DELEGATE_READ
|| delegation->type == OPEN_DELEGATE_WRITE;
/* depending on the claim type, OPEN expects CURRENT_FH set
* to either the parent directory, or to the file itself */
switch (claim->claim) {
case CLAIM_NULL:
case CLAIM_DELEGATE_CUR:
case CLAIM_DELEGATE_PREV:
/* CURRENT_FH: directory */
current_fh_is_dir = TRUE;
/* SEQUENCE; PUTFH(dir); SAVEFH; OPEN;
* GETFH(file); GETATTR(file); RESTOREFH(dir); GETATTR */
nfs41_superblock_getattr_mask(parent->fh.superblock, &attr_request);
break;
case CLAIM_PREVIOUS:
case CLAIM_FH:
case CLAIM_DELEG_CUR_FH:
case CLAIM_DELEG_PREV_FH:
default:
/* CURRENT_FH: file being opened */
current_fh_is_dir = FALSE;
/* SEQUENCE; PUTFH(file); OPEN; GETATTR(file); PUTFH(dir); GETATTR */
nfs41_superblock_getattr_mask(file->fh.superblock, &attr_request);
break;
}
if (info == NULL)
info = &tmp_info;
attr_request.arr[0] |= FATTR4_WORD0_FSID;
compound_init(&compound, argops, resops, "open");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 1);
if (current_fh_is_dir) {
/* CURRENT_FH: directory */
compound_add_op(&compound, OP_PUTFH, &putfh_args[0], &putfh_res[0]);
putfh_args[0].file = parent;
putfh_args[0].in_recovery = 0;
compound_add_op(&compound, OP_SAVEFH, NULL, &savefh_res);
} else {
/* CURRENT_FH: file being opened */
compound_add_op(&compound, OP_PUTFH, &putfh_args[0], &putfh_res[0]);
putfh_args[0].file = file;
putfh_args[0].in_recovery = 0;
}
compound_add_op(&compound, OP_OPEN, &open_args, &open_res);
open_args.seqid = 0;
#ifdef DISABLE_FILE_DELEGATIONS
open_args.share_access = allow | OPEN4_SHARE_ACCESS_WANT_NO_DELEG;
#else
open_args.share_access = allow;
#endif
open_args.share_deny = deny;
open_args.owner = owner;
open_args.openhow.opentype = create;
open_args.openhow.how.mode = how_mode;
open_args.openhow.how.createattrs = createattrs;
if (how_mode == EXCLUSIVE4_1) {
DWORD tid = GetCurrentThreadId();
time((time_t*)open_args.openhow.how.createverf);
memcpy(open_args.openhow.how.createverf+4, &tid, sizeof(tid));
/* mask unsupported attributes */
nfs41_superblock_supported_attrs_exclcreat(
parent->fh.superblock, &createattrs->attrmask);
} else if (createattrs) {
/* mask unsupported attributes */
nfs41_superblock_supported_attrs(
parent->fh.superblock, &createattrs->attrmask);
}
open_args.claim = claim;
open_res.resok4.stateid = stateid;
open_res.resok4.delegation = delegation;
if (current_fh_is_dir) {
compound_add_op(&compound, OP_GETFH, NULL, &getfh_res);
getfh_res.fh = &file->fh;
}
compound_add_op(&compound, OP_GETATTR, &getattr_args, &getattr_res);
getattr_args.attr_request = &attr_request;
getattr_res.obj_attributes.attr_vals_len = NFS4_OPAQUE_LIMIT;
getattr_res.info = info;
if (current_fh_is_dir) {
compound_add_op(&compound, OP_RESTOREFH, NULL, &restorefh_res);
} else {
compound_add_op(&compound, OP_PUTFH, &putfh_args[1], &putfh_res[1]);
putfh_args[1].file = parent;
putfh_args[1].in_recovery = 0;
}
compound_add_op(&compound, OP_GETATTR, &getattr_args, &pgetattr_res);
getattr_args.attr_request = &attr_request;
pgetattr_res.obj_attributes.attr_vals_len = NFS4_OPAQUE_LIMIT;
pgetattr_res.info = &dir_info;
status = compound_encode_send_decode(session, &compound, try_recovery);
if (status)
goto out;
if (compound_error(status = compound.res.status))
goto out;
if (dir_info.type == NF4ATTRDIR) {
file->fh.superblock = parent->fh.superblock;
goto out;
}
/* fill in the file handle's fileid and superblock */
file->fh.fileid = info->fileid;
status = nfs41_superblock_for_fh(session, &info->fsid, &parent->fh, file);
if (status)
goto out;
if (create == OPEN4_CREATE)
nfs41_superblock_space_changed(file->fh.superblock);
/* update the name/attr cache with the results */
open_update_cache(session, parent, file, try_recovery, delegation,
already_delegated, &open_res.resok4.cinfo, &pgetattr_res, &getattr_res);
out:
return status;
}
int nfs41_create(
IN nfs41_session *session,
IN uint32_t type,
IN nfs41_file_info *createattrs,
IN OPTIONAL const char *symlink,
IN nfs41_path_fh *parent,
OUT nfs41_path_fh *file,
OUT nfs41_file_info *info)
{
int status;
nfs41_compound compound;
nfs_argop4 argops[8];
nfs_resop4 resops[8];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args putfh_args;
nfs41_putfh_res putfh_res;
nfs41_create_args create_args;
nfs41_create_res create_res;
nfs41_getfh_res getfh_res;
nfs41_getattr_args getattr_args;
nfs41_getattr_res getattr_res, pgetattr_res;
bitmap4 attr_request;
nfs41_file_info dir_info;
nfs41_savefh_res savefh_res;
nfs41_restorefh_res restorefh_res;
nfs41_superblock_getattr_mask(parent->fh.superblock, &attr_request);
compound_init(&compound, argops, resops, "create");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 1);
compound_add_op(&compound, OP_PUTFH, &putfh_args, &putfh_res);
putfh_args.file = parent;
putfh_args.in_recovery = 0;
compound_add_op(&compound, OP_SAVEFH, NULL, &savefh_res);
compound_add_op(&compound, OP_CREATE, &create_args, &create_res);
create_args.objtype.type = type;
if (type == NF4LNK) {
create_args.objtype.u.lnk.linkdata = symlink;
create_args.objtype.u.lnk.linkdata_len = (uint32_t)strlen(symlink);
}
create_args.name = &file->name;
create_args.createattrs = createattrs;
nfs41_superblock_supported_attrs(
parent->fh.superblock, &createattrs->attrmask);
compound_add_op(&compound, OP_GETFH, NULL, &getfh_res);
getfh_res.fh = &file->fh;
compound_add_op(&compound, OP_GETATTR, &getattr_args, &getattr_res);
getattr_args.attr_request = &attr_request;
getattr_res.obj_attributes.attr_vals_len = NFS4_OPAQUE_LIMIT;
getattr_res.info = info;
compound_add_op(&compound, OP_RESTOREFH, NULL, &restorefh_res);
compound_add_op(&compound, OP_GETATTR, &getattr_args, &pgetattr_res);
getattr_args.attr_request = &attr_request;
pgetattr_res.obj_attributes.attr_vals_len = NFS4_OPAQUE_LIMIT;
pgetattr_res.info = &dir_info;
status = compound_encode_send_decode(session, &compound, TRUE);
if (status)
goto out;
if (compound_error(status = compound.res.status))
goto out;
/* fill in the file handle's fileid and superblock */
file->fh.fileid = info->fileid;
file->fh.superblock = parent->fh.superblock;
/* update the attributes of the parent directory */
memcpy(&dir_info.attrmask, &pgetattr_res.obj_attributes.attrmask,
sizeof(bitmap4));
nfs41_attr_cache_update(session_name_cache(session),
parent->fh.fileid, &dir_info);
/* add the new file handle and attributes to the name cache */
memcpy(&info->attrmask, &getattr_res.obj_attributes.attrmask,
sizeof(bitmap4));
AcquireSRWLockShared(&file->path->lock);
nfs41_name_cache_insert(session_name_cache(session),
file->path->path, &file->name, &file->fh,
info, &create_res.cinfo, OPEN_DELEGATE_NONE);
ReleaseSRWLockShared(&file->path->lock);
nfs41_superblock_space_changed(file->fh.superblock);
out:
return status;
}
int nfs41_close(
IN nfs41_session *session,
IN nfs41_path_fh *file,
IN stateid_arg *stateid)
{
int status;
nfs41_compound compound;
nfs_argop4 argops[4];
nfs_resop4 resops[4];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args putfh_args;
nfs41_putfh_res putfh_res;
nfs41_op_close_args close_args;
nfs41_op_close_res close_res;
nfs41_getattr_args getattr_args;
nfs41_getattr_res getattr_res;
bitmap4 attr_request;
nfs41_file_info info;
nfs41_superblock_getattr_mask(file->fh.superblock, &attr_request);
compound_init(&compound, argops, resops, "close");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 1);
compound_add_op(&compound, OP_PUTFH, &putfh_args, &putfh_res);
putfh_args.file = file;
putfh_args.in_recovery = 0;
compound_add_op(&compound, OP_CLOSE, &close_args, &close_res);
close_args.stateid = stateid;
compound_add_op(&compound, OP_GETATTR, &getattr_args, &getattr_res);
getattr_args.attr_request = &attr_request;
getattr_res.obj_attributes.attr_vals_len = NFS4_OPAQUE_LIMIT;
getattr_res.info = &info;
status = compound_encode_send_decode(session, &compound, TRUE);
if (status)
goto out;
if (compound_error(status = compound.res.status))
goto out;
if (info.type == NF4NAMEDATTR)
goto out;
/* update the attributes of the parent directory */
memcpy(&info.attrmask, &getattr_res.obj_attributes.attrmask,
sizeof(bitmap4));
nfs41_attr_cache_update(session_name_cache(session),
file->fh.fileid, &info);
out:
return status;
}
int nfs41_write(
IN nfs41_session *session,
IN nfs41_path_fh *file,
IN stateid_arg *stateid,
IN unsigned char *data,
IN uint32_t data_len,
IN uint64_t offset,
IN enum stable_how4 stable,
OUT uint32_t *bytes_written,
OUT nfs41_write_verf *verf,
OUT nfs41_file_info *cinfo)
{
int status;
nfs41_compound compound;
nfs_argop4 argops[4];
nfs_resop4 resops[4];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args putfh_args;
nfs41_putfh_res putfh_res;
nfs41_write_args write_args;
nfs41_write_res write_res;
nfs41_getattr_args getattr_args;
nfs41_getattr_res getattr_res = {0};
bitmap4 attr_request;
nfs41_file_info info = { 0 }, *pinfo;
nfs41_superblock_getattr_mask(file->fh.superblock, &attr_request);
compound_init(&compound, argops, resops,
stateid->stateid.seqid == 0 ? "ds write" : "write");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 0);
compound_add_op(&compound, OP_PUTFH, &putfh_args, &putfh_res);
putfh_args.file = file;
putfh_args.in_recovery = 0;
compound_add_op(&compound, OP_WRITE, &write_args, &write_res);
write_args.stateid = stateid;
write_args.offset = offset;
write_args.stable = stable;
write_args.data_len = data_len;
write_args.data = data;
write_res.resok4.verf = verf;
if (cinfo) pinfo = cinfo;
else pinfo = &info;
if (stable != UNSTABLE4) {
/* if the write is stable, we can't rely on COMMIT to update
* the attribute cache, so we do the GETATTR here */
compound_add_op(&compound, OP_GETATTR, &getattr_args, &getattr_res);
getattr_args.attr_request = &attr_request;
getattr_res.obj_attributes.attr_vals_len = NFS4_OPAQUE_LIMIT;
getattr_res.info = pinfo;
}
status = compound_encode_send_decode(session, &compound, TRUE);
if (status)
goto out;
if (compound_error(status = compound.res.status))
goto out;
if (stable != UNSTABLE4 && pinfo->type != NF4NAMEDATTR) {
/* update the attribute cache */
memcpy(&pinfo->attrmask, &getattr_res.obj_attributes.attrmask,
sizeof(bitmap4));
nfs41_attr_cache_update(session_name_cache(session),
file->fh.fileid, pinfo);
}
*bytes_written = write_res.resok4.count;
/* we shouldn't ever see this, but a buggy server could
* send us into an infinite loop. return NFS4ERR_IO */
if (!write_res.resok4.count) {
status = NFS4ERR_IO;
eprintf("WRITE succeeded with count=0; returning %s\n",
nfs_error_string(status));
}
nfs41_superblock_space_changed(file->fh.superblock);
out:
return status;
}
int nfs41_read(
IN nfs41_session *session,
IN nfs41_path_fh *file,
IN stateid_arg *stateid,
IN uint64_t offset,
IN uint32_t count,
OUT unsigned char *data_out,
OUT uint32_t *data_len_out,
OUT bool_t *eof_out)
{
int status;
nfs41_compound compound;
nfs_argop4 argops[4];
nfs_resop4 resops[4];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args putfh_args;
nfs41_putfh_res putfh_res;
nfs41_read_args read_args;
nfs41_read_res read_res;
compound_init(&compound, argops, resops,
stateid->stateid.seqid == 0 ? "ds read" : "read");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 0);
compound_add_op(&compound, OP_PUTFH, &putfh_args, &putfh_res);
putfh_args.file = file;
putfh_args.in_recovery = 0;
compound_add_op(&compound, OP_READ, &read_args, &read_res);
read_args.stateid = stateid;
read_args.offset = offset;
read_args.count = count;
read_res.resok4.data_len = count;
read_res.resok4.data = data_out;
status = compound_encode_send_decode(session, &compound, TRUE);
if (status)
goto out;
if (compound_error(status = compound.res.status))
goto out;
*data_len_out = read_res.resok4.data_len;
*eof_out = read_res.resok4.eof;
/* we shouldn't ever see this, but a buggy server could
* send us into an infinite loop. return NFS4ERR_IO */
if (!read_res.resok4.data_len && !read_res.resok4.eof) {
status = NFS4ERR_IO;
eprintf("READ succeeded with len=0 and eof=0; returning %s\n",
nfs_error_string(status));
}
out:
return status;
}
int nfs41_commit(
IN nfs41_session *session,
IN nfs41_path_fh *file,
IN uint64_t offset,
IN uint32_t count,
IN bool_t do_getattr,
OUT nfs41_write_verf *verf,
OUT nfs41_file_info *cinfo)
{
int status;
nfs41_compound compound;
nfs_argop4 argops[4];
nfs_resop4 resops[4];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args putfh_args;
nfs41_putfh_res putfh_res;
nfs41_commit_args commit_args;
nfs41_commit_res commit_res;
nfs41_getattr_args getattr_args;
nfs41_getattr_res getattr_res = {0};
bitmap4 attr_request;
nfs41_file_info info, *pinfo;
compound_init(&compound, argops, resops,
do_getattr ? "commit" : "ds commit");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 1);
compound_add_op(&compound, OP_PUTFH, &putfh_args, &putfh_res);
putfh_args.file = file;
putfh_args.in_recovery = 0;
compound_add_op(&compound, OP_COMMIT, &commit_args, &commit_res);
commit_args.offset = offset;
commit_args.count = count;
commit_res.verf = verf;
/* send a GETATTR request to update the attribute cache,
* but not if we're talking to a data server! */
if (cinfo) pinfo = cinfo;
else pinfo = &info;
if (do_getattr) {
nfs41_superblock_getattr_mask(file->fh.superblock, &attr_request);
compound_add_op(&compound, OP_GETATTR, &getattr_args, &getattr_res);
getattr_args.attr_request = &attr_request;
getattr_res.obj_attributes.attr_vals_len = NFS4_OPAQUE_LIMIT;
getattr_res.info = pinfo;
}
status = compound_encode_send_decode(session, &compound, TRUE);
if (status)
goto out;
if (compound_error(status = compound.res.status))
goto out;
if (do_getattr) {
/* update the attribute cache */
memcpy(&pinfo->attrmask, &getattr_res.obj_attributes.attrmask,
sizeof(bitmap4));
nfs41_attr_cache_update(session_name_cache(session),
file->fh.fileid, pinfo);
}
nfs41_superblock_space_changed(file->fh.superblock);
out:
return status;
}
int nfs41_lock(
IN nfs41_session *session,
IN nfs41_path_fh *file,
IN state_owner4 *owner,
IN uint32_t type,
IN uint64_t offset,
IN uint64_t length,
IN bool_t reclaim,
IN bool_t try_recovery,
IN OUT stateid_arg *stateid)
{
int status;
nfs41_compound compound;
nfs_argop4 argops[3];
nfs_resop4 resops[3];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args putfh_args;
nfs41_putfh_res putfh_res;
nfs41_lock_args lock_args;
nfs41_lock_res lock_res;
compound_init(&compound, argops, resops, "lock");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 0);
compound_add_op(&compound, OP_PUTFH, &putfh_args, &putfh_res);
putfh_args.file = file;
putfh_args.in_recovery = 0;
compound_add_op(&compound, OP_LOCK, &lock_args, &lock_res);
lock_args.locktype = type;
lock_args.reclaim = reclaim;
lock_args.offset = offset;
lock_args.length = length;
if (stateid->type == STATEID_LOCK) {
lock_args.locker.new_lock_owner = 0;
lock_args.locker.u.lock_owner.lock_stateid = stateid;
lock_args.locker.u.lock_owner.lock_seqid = 0; /* ignored */
} else {
lock_args.locker.new_lock_owner = 1;
lock_args.locker.u.open_owner.open_seqid = 0; /* ignored */
lock_args.locker.u.open_owner.open_stateid = stateid;
lock_args.locker.u.open_owner.lock_seqid = 0; /* ignored */
lock_args.locker.u.open_owner.lock_owner = owner;
}
lock_res.u.resok4.lock_stateid = &stateid->stateid;
lock_res.u.denied.owner.owner_len = NFS4_OPAQUE_LIMIT;
status = compound_encode_send_decode(session, &compound, try_recovery);
if (status)
goto out;
if (compound_error(status = compound.res.status))
goto out;
stateid->type = STATEID_LOCK; /* returning a lock stateid */
out:
return status;
}
int nfs41_unlock(
IN nfs41_session *session,
IN nfs41_path_fh *file,
IN uint64_t offset,
IN uint64_t length,
IN OUT stateid_arg *stateid)
{
int status;
nfs41_compound compound;
nfs_argop4 argops[3];
nfs_resop4 resops[3];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args putfh_args;
nfs41_putfh_res putfh_res;
nfs41_locku_args locku_args;
nfs41_locku_res locku_res;
compound_init(&compound, argops, resops, "unlock");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 0);
compound_add_op(&compound, OP_PUTFH, &putfh_args, &putfh_res);
putfh_args.file = file;
putfh_args.in_recovery = 0;
compound_add_op(&compound, OP_LOCKU, &locku_args, &locku_res);
/* 18.12.3: the server MUST accept any legal value for locktype */
locku_args.locktype = READ_LT;
locku_args.offset = offset;
locku_args.length = length;
locku_args.lock_stateid = stateid;
locku_res.lock_stateid = &stateid->stateid;
status = compound_encode_send_decode(session, &compound, TRUE);
if (status)
goto out;
compound_error(status = compound.res.status);
out:
return status;
}
int nfs41_readdir(
IN nfs41_session *session,
IN nfs41_path_fh *file,
IN bitmap4 *attr_request,
IN nfs41_readdir_cookie *cookie,
OUT unsigned char *entries,
IN OUT uint32_t *entries_len,
OUT bool_t *eof_out)
{
int status;
nfs41_compound compound;
nfs_argop4 argops[3];
nfs_resop4 resops[3];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args putfh_args;
nfs41_putfh_res putfh_res;
nfs41_readdir_args readdir_args;
nfs41_readdir_res readdir_res;
compound_init(&compound, argops, resops, "readdir");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 0);
compound_add_op(&compound, OP_PUTFH, &putfh_args, &putfh_res);
putfh_args.file = file;
putfh_args.in_recovery = 0;
compound_add_op(&compound, OP_READDIR, &readdir_args, &readdir_res);
readdir_args.cookie.cookie = cookie->cookie;
memcpy(readdir_args.cookie.verf, cookie->verf, NFS4_VERIFIER_SIZE);
readdir_args.dircount = *entries_len;
readdir_args.maxcount = *entries_len + sizeof(nfs41_readdir_res);
readdir_args.attr_request = attr_request;
readdir_res.reply.entries_len = *entries_len;
readdir_res.reply.entries = entries;
ZeroMemory(entries, readdir_args.dircount);
status = compound_encode_send_decode(session, &compound, TRUE);
if (status)
goto out;
if (compound_error(status = compound.res.status))
goto out;
*entries_len = readdir_res.reply.entries_len;
*eof_out = readdir_res.reply.eof;
memcpy(cookie->verf, readdir_res.cookieverf, NFS4_VERIFIER_SIZE);
out:
return status;
}
int nfs41_getattr(
IN nfs41_session *session,
IN OPTIONAL nfs41_path_fh *file,
IN bitmap4 *attr_request,
OUT nfs41_file_info *info)
{
int status;
nfs41_compound compound;
nfs_argop4 argops[3];
nfs_resop4 resops[3];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args putfh_args;
nfs41_putfh_res putfh_res;
nfs41_getattr_args getattr_args;
nfs41_getattr_res getattr_res;
compound_init(&compound, argops, resops, "getattr");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 0);
if (file) {
compound_add_op(&compound, OP_PUTFH, &putfh_args, &putfh_res);
putfh_args.file = file;
putfh_args.in_recovery = 0;
} else {
compound_add_op(&compound, OP_PUTROOTFH, NULL, &putfh_res);
}
compound_add_op(&compound, OP_GETATTR, &getattr_args, &getattr_res);
getattr_args.attr_request = attr_request;
getattr_res.obj_attributes.attr_vals_len = NFS4_OPAQUE_LIMIT;
getattr_res.info = info;
status = compound_encode_send_decode(session, &compound, TRUE);
if (status)
goto out;
if (compound_error(status = compound.res.status))
goto out;
if (file) {
/* update the name cache with whatever attributes we got */
memcpy(&info->attrmask, &getattr_res.obj_attributes.attrmask,
sizeof(bitmap4));
nfs41_attr_cache_update(session_name_cache(session),
file->fh.fileid, info);
}
out:
return status;
}
int nfs41_superblock_getattr(
IN nfs41_session *session,
IN nfs41_path_fh *file,
IN bitmap4 *attr_request,
OUT nfs41_file_info *info,
OUT bool_t *supports_named_attrs)
{
int status;
nfs41_compound compound;
nfs_argop4 argops[4];
nfs_resop4 resops[4];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args putfh_args;
nfs41_putfh_res putfh_res;
nfs41_getattr_args getattr_args;
nfs41_getattr_res getattr_res;
nfs41_openattr_args openattr_args;
nfs41_openattr_res openattr_res;
compound_init(&compound, argops, resops, "getfsattr");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 0);
compound_add_op(&compound, OP_PUTFH, &putfh_args, &putfh_res);
putfh_args.file = file;
putfh_args.in_recovery = 0;
compound_add_op(&compound, OP_GETATTR, &getattr_args, &getattr_res);
getattr_args.attr_request = attr_request;
getattr_res.obj_attributes.attr_vals_len = NFS4_OPAQUE_LIMIT;
getattr_res.info = info;
compound_add_op(&compound, OP_OPENATTR, &openattr_args, &openattr_res);
openattr_args.createdir = 0;
status = compound_encode_send_decode(session, &compound, TRUE);
if (status)
goto out;
status = sequence_res.sr_status;
if (status) goto out;
status = putfh_res.status;
if (status) goto out;
status = getattr_res.status;
if (status) goto out;
switch (status = openattr_res.status) {
case NFS4ERR_NOTSUPP:
*supports_named_attrs = 0;
status = NFS4_OK;
break;
case NFS4ERR_NOENT:
case NFS4_OK:
*supports_named_attrs = 1;
status = NFS4_OK;
break;
}
out:
return status;
}
int nfs41_remove(
IN nfs41_session *session,
IN nfs41_path_fh *parent,
IN const nfs41_component *target,
IN uint64_t fileid)
{
int status;
nfs41_compound compound;
nfs_argop4 argops[4];
nfs_resop4 resops[4];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args putfh_args;
nfs41_putfh_res putfh_res;
nfs41_remove_args remove_args;
nfs41_remove_res remove_res;
nfs41_getattr_args getattr_args;
nfs41_getattr_res getattr_res;
bitmap4 attr_request;
nfs41_file_info info;
nfs41_superblock_getattr_mask(parent->fh.superblock, &attr_request);
compound_init(&compound, argops, resops, "remove");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 1);
compound_add_op(&compound, OP_PUTFH, &putfh_args, &putfh_res);
putfh_args.file = parent;
putfh_args.in_recovery = 0;
compound_add_op(&compound, OP_REMOVE, &remove_args, &remove_res);
remove_args.target = target;
compound_add_op(&compound, OP_GETATTR, &getattr_args, &getattr_res);
getattr_args.attr_request = &attr_request;
getattr_res.obj_attributes.attr_vals_len = NFS4_OPAQUE_LIMIT;
getattr_res.info = &info;
status = compound_encode_send_decode(session, &compound, TRUE);
if (status)
goto out;
if (compound_error(status = compound.res.status))
goto out;
if (info.type == NF4ATTRDIR)
goto out;
/* update the attributes of the parent directory */
memcpy(&info.attrmask, &getattr_res.obj_attributes.attrmask,
sizeof(bitmap4));
nfs41_attr_cache_update(session_name_cache(session),
parent->fh.fileid, &info);
/* remove the target file from the cache */
AcquireSRWLockShared(&parent->path->lock);
nfs41_name_cache_remove(session_name_cache(session),
parent->path->path, target, fileid, &remove_res.cinfo);
ReleaseSRWLockShared(&parent->path->lock);
nfs41_superblock_space_changed(parent->fh.superblock);
out:
return status;
}
int nfs41_rename(
IN nfs41_session *session,
IN nfs41_path_fh *src_dir,
IN const nfs41_component *src_name,
IN nfs41_path_fh *dst_dir,
IN const nfs41_component *dst_name)
{
int status;
nfs41_compound compound;
nfs_argop4 argops[8];
nfs_resop4 resops[8];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args src_putfh_args;
nfs41_putfh_res src_putfh_res;
nfs41_savefh_res savefh_res;
nfs41_putfh_args dst_putfh_args;
nfs41_putfh_res dst_putfh_res;
nfs41_rename_args rename_args;
nfs41_rename_res rename_res;
nfs41_getattr_args getattr_args;
nfs41_getattr_res src_getattr_res, dst_getattr_res;
nfs41_file_info src_info, dst_info;
bitmap4 attr_request;
nfs41_restorefh_res restorefh_res;
nfs41_superblock_getattr_mask(src_dir->fh.superblock, &attr_request);
compound_init(&compound, argops, resops, "rename");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 1);
compound_add_op(&compound, OP_PUTFH, &src_putfh_args, &src_putfh_res);
src_putfh_args.file = src_dir;
src_putfh_args.in_recovery = 0;
compound_add_op(&compound, OP_SAVEFH, NULL, &savefh_res);
compound_add_op(&compound, OP_PUTFH, &dst_putfh_args, &dst_putfh_res);
dst_putfh_args.file = dst_dir;
dst_putfh_args.in_recovery = 0;
compound_add_op(&compound, OP_RENAME, &rename_args, &rename_res);
rename_args.oldname = src_name;
rename_args.newname = dst_name;
compound_add_op(&compound, OP_GETATTR, &getattr_args, &dst_getattr_res);
getattr_args.attr_request = &attr_request;
dst_getattr_res.obj_attributes.attr_vals_len = NFS4_OPAQUE_LIMIT;
dst_getattr_res.info = &dst_info;
compound_add_op(&compound, OP_RESTOREFH, NULL, &restorefh_res);
compound_add_op(&compound, OP_GETATTR, &getattr_args, &src_getattr_res);
src_getattr_res.obj_attributes.attr_vals_len = NFS4_OPAQUE_LIMIT;
src_getattr_res.info = &src_info;
status = compound_encode_send_decode(session, &compound, TRUE);
if (status)
goto out;
if (compound_error(status = compound.res.status))
goto out;
/* update the attributes of the source directory */
memcpy(&src_info.attrmask, &src_getattr_res.obj_attributes.attrmask,
sizeof(bitmap4));
nfs41_attr_cache_update(session_name_cache(session),
src_dir->fh.fileid, &src_info);
/* update the attributes of the destination directory */
memcpy(&dst_info.attrmask, &dst_getattr_res.obj_attributes.attrmask,
sizeof(bitmap4));
nfs41_attr_cache_update(session_name_cache(session),
dst_dir->fh.fileid, &dst_info);
if (src_dir->path == dst_dir->path) {
/* source and destination are the same, only lock it once */
AcquireSRWLockShared(&src_dir->path->lock);
} else if (src_dir->path < dst_dir->path) {
/* lock the lowest memory address first */
AcquireSRWLockShared(&src_dir->path->lock);
AcquireSRWLockShared(&dst_dir->path->lock);
} else {
AcquireSRWLockShared(&dst_dir->path->lock);
AcquireSRWLockShared(&src_dir->path->lock);
}
/* move/rename the target file's name cache entry */
nfs41_name_cache_rename(session_name_cache(session),
src_dir->path->path, src_name, &rename_res.source_cinfo,
dst_dir->path->path, dst_name, &rename_res.target_cinfo);
if (src_dir->path == dst_dir->path) {
ReleaseSRWLockShared(&src_dir->path->lock);
} else {
ReleaseSRWLockShared(&src_dir->path->lock);
ReleaseSRWLockShared(&dst_dir->path->lock);
}
out:
return status;
}
int nfs41_setattr(
IN nfs41_session *session,
IN nfs41_path_fh *file,
IN stateid_arg *stateid,
IN nfs41_file_info *info)
{
int status;
nfs41_compound compound;
nfs_argop4 argops[4];
nfs_resop4 resops[4];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args putfh_args;
nfs41_putfh_res putfh_res;
nfs41_setattr_args setattr_args;
nfs41_setattr_res setattr_res;
nfs41_getattr_args getattr_args;
nfs41_getattr_res getattr_res;
bitmap4 attr_request;
compound_init(&compound, argops, resops, "setattr");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 0);
compound_add_op(&compound, OP_PUTFH, &putfh_args, &putfh_res);
putfh_args.file = file;
putfh_args.in_recovery = 0;
compound_add_op(&compound, OP_SETATTR, &setattr_args, &setattr_res);
setattr_args.stateid = stateid;
setattr_args.info = info;
nfs41_superblock_getattr_mask(file->fh.superblock, &attr_request);
compound_add_op(&compound, OP_GETATTR, &getattr_args, &getattr_res);
getattr_args.attr_request = &attr_request;
getattr_res.obj_attributes.attr_vals_len = NFS4_OPAQUE_LIMIT;
getattr_res.info = info;
status = compound_encode_send_decode(session, &compound, TRUE);
if (status)
goto out;
if (compound_error(status = compound.res.status))
goto out;
memcpy(&info->attrmask, &attr_request, sizeof(bitmap4));
nfs41_attr_cache_update(session_name_cache(session),
file->fh.fileid, info);
if (setattr_res.attrsset.arr[0] & FATTR4_WORD0_SIZE)
nfs41_superblock_space_changed(file->fh.superblock);
out:
return status;
}
int nfs41_link(
IN nfs41_session *session,
IN nfs41_path_fh *src,
IN nfs41_path_fh *dst_dir,
IN const nfs41_component *target,
OUT nfs41_file_info *cinfo)
{
int status;
nfs41_compound compound;
nfs_argop4 argops[9];
nfs_resop4 resops[9];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args putfh_args[2];
nfs41_putfh_res putfh_res[2];
nfs41_savefh_res savefh_res;
nfs41_link_args link_args;
nfs41_link_res link_res;
nfs41_lookup_args lookup_args;
nfs41_lookup_res lookup_res;
nfs41_getfh_res getfh_res;
nfs41_getattr_args getattr_args[2];
nfs41_getattr_res getattr_res[2];
nfs41_file_info info = { 0 };
nfs41_path_fh file;
nfs41_superblock_getattr_mask(src->fh.superblock, &info.attrmask);
nfs41_superblock_getattr_mask(dst_dir->fh.superblock, &cinfo->attrmask);
cinfo->attrmask.arr[0] |= FATTR4_WORD0_FSID;
compound_init(&compound, argops, resops, "link");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 1);
/* PUTFH(src) */
compound_add_op(&compound, OP_PUTFH, &putfh_args[0], &putfh_res[0]);
putfh_args[0].file = src;
putfh_args[0].in_recovery = 0;
compound_add_op(&compound, OP_SAVEFH, NULL, &savefh_res);
/* PUTFH(dst_dir) */
compound_add_op(&compound, OP_PUTFH, &putfh_args[1], &putfh_res[1]);
putfh_args[1].file = dst_dir;
putfh_args[1].in_recovery = 0;
compound_add_op(&compound, OP_LINK, &link_args, &link_res);
link_args.newname = target;
/* GETATTR(dst_dir) */
compound_add_op(&compound, OP_GETATTR, &getattr_args[0], &getattr_res[0]);
getattr_args[0].attr_request = &info.attrmask;
getattr_res[0].obj_attributes.attr_vals_len = NFS4_OPAQUE_LIMIT;
getattr_res[0].info = &info;
/* LOOKUP(target) */
compound_add_op(&compound, OP_LOOKUP, &lookup_args, &lookup_res);
lookup_args.name = target;
/* GETATTR(target) */
compound_add_op(&compound, OP_GETATTR, &getattr_args[1], &getattr_res[1]);
getattr_args[1].attr_request = &cinfo->attrmask;
getattr_res[1].obj_attributes.attr_vals_len = NFS4_OPAQUE_LIMIT;
getattr_res[1].info = cinfo;
/* GETFH(target) */
compound_add_op(&compound, OP_GETFH, NULL, &getfh_res);
getfh_res.fh = &file.fh;
status = compound_encode_send_decode(session, &compound, TRUE);
if (status)
goto out;
if (compound_error(status = compound.res.status))
goto out;
/* fill in the file handle's fileid and superblock */
file.fh.fileid = cinfo->fileid;
status = nfs41_superblock_for_fh(session,
&cinfo->fsid, &dst_dir->fh, &file);
if (status)
goto out;
/* update the attributes of the destination directory */
memcpy(&info.attrmask, &getattr_res[0].obj_attributes.attrmask,
sizeof(bitmap4));
nfs41_attr_cache_update(session_name_cache(session),
info.fileid, &info);
/* add the new file handle and attributes to the name cache */
memcpy(&cinfo->attrmask, &getattr_res[1].obj_attributes.attrmask,
sizeof(bitmap4));
AcquireSRWLockShared(&dst_dir->path->lock);
nfs41_name_cache_insert(session_name_cache(session),
dst_dir->path->path, target, &file.fh,
cinfo, &link_res.cinfo, OPEN_DELEGATE_NONE);
ReleaseSRWLockShared(&dst_dir->path->lock);
nfs41_superblock_space_changed(dst_dir->fh.superblock);
out:
return status;
}
int nfs41_readlink(
IN nfs41_session *session,
IN nfs41_path_fh *file,
IN uint32_t max_len,
OUT char *link_out,
OUT uint32_t *len_out)
{
int status;
nfs41_compound compound;
nfs_argop4 argops[3];
nfs_resop4 resops[3];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args putfh_args;
nfs41_putfh_res putfh_res;
nfs41_readlink_res readlink_res;
compound_init(&compound, argops, resops, "readlink");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 0);
compound_add_op(&compound, OP_PUTFH, &putfh_args, &putfh_res);
putfh_args.file = file;
putfh_args.in_recovery = 0;
compound_add_op(&compound, OP_READLINK, NULL, &readlink_res);
readlink_res.link_len = max_len - 1;
readlink_res.link = link_out;
status = compound_encode_send_decode(session, &compound, TRUE);
if (status)
goto out;
if (compound_error(status = compound.res.status))
goto out;
link_out[readlink_res.link_len] = '\0';
*len_out = readlink_res.link_len;
out:
return status;
}
int nfs41_access(
IN nfs41_session *session,
IN nfs41_path_fh *file,
IN uint32_t requested,
OUT uint32_t *supported OPTIONAL,
OUT uint32_t *access OPTIONAL)
{
int status;
nfs41_compound compound;
nfs_argop4 argops[3];
nfs_resop4 resops[3];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args putfh_args;
nfs41_putfh_res putfh_res;
nfs41_access_args access_args;
nfs41_access_res access_res;
compound_init(&compound, argops, resops, "access");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 0);
compound_add_op(&compound, OP_PUTFH, &putfh_args, &putfh_res);
putfh_args.file = file;
putfh_args.in_recovery = 0;
compound_add_op(&compound, OP_ACCESS, &access_args, &access_res);
access_args.access = requested;
status = compound_encode_send_decode(session, &compound, TRUE);
if (status)
goto out;
if (compound_error(status = compound.res.status))
goto out;
if (supported)
*supported = access_res.supported;
if (access)
*access = access_res.access;
out:
return status;
}
int nfs41_send_sequence(
IN nfs41_session *session)
{
int status;
nfs41_compound compound;
nfs_argop4 argops[1];
nfs_resop4 resops[1];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
compound_init(&compound, argops, resops, "sequence");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 0);
status = compound_encode_send_decode(session, &compound, TRUE);
if (status)
goto out;
if (compound_error(status = compound.res.status))
goto out;
out:
return status;
}
enum nfsstat4 nfs41_want_delegation(
IN nfs41_session *session,
IN nfs41_path_fh *file,
IN deleg_claim4 *claim,
IN uint32_t want,
IN bool_t try_recovery,
OUT open_delegation4 *delegation)
{
enum nfsstat4 status;
nfs41_compound compound;
nfs_argop4 argops[3];
nfs_resop4 resops[3];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args putfh_args;
nfs41_putfh_res putfh_res;
nfs41_want_delegation_args wd_args;
nfs41_want_delegation_res wd_res;
compound_init(&compound, argops, resops, "want_delegation");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 0);
compound_add_op(&compound, OP_PUTFH, &putfh_args, &putfh_res);
putfh_args.file = file;
putfh_args.in_recovery = 0;
compound_add_op(&compound, OP_WANT_DELEGATION, &wd_args, &wd_res);
wd_args.claim = claim;
wd_args.want = want;
wd_res.delegation = delegation;
status = compound_encode_send_decode(session, &compound, try_recovery);
if (status)
goto out;
compound_error(status = compound.res.status);
out:
return status;
}
int nfs41_delegpurge(
IN nfs41_session *session)
{
int status;
nfs41_compound compound;
nfs_argop4 argops[2];
nfs_resop4 resops[2];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_delegpurge_res dp_res;
compound_init(&compound, argops, resops, "delegpurge");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 0);
compound_add_op(&compound, OP_DELEGPURGE, NULL, &dp_res);
status = compound_encode_send_decode(session, &compound, TRUE);
if (status)
goto out;
compound_error(status = compound.res.status);
out:
return status;
}
int nfs41_delegreturn(
IN nfs41_session *session,
IN nfs41_path_fh *file,
IN stateid_arg *stateid,
IN bool_t try_recovery)
{
int status;
nfs41_compound compound;
nfs_argop4 argops[3];
nfs_resop4 resops[3];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args putfh_args;
nfs41_putfh_res putfh_res;
nfs41_delegreturn_args dr_args;
nfs41_delegreturn_res dr_res;
compound_init(&compound, argops, resops, "delegreturn");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 0);
compound_add_op(&compound, OP_PUTFH, &putfh_args, &putfh_res);
putfh_args.file = file;
putfh_args.in_recovery = 0;
compound_add_op(&compound, OP_DELEGRETURN, &dr_args, &dr_res);
dr_args.stateid = stateid;
status = compound_encode_send_decode(session, &compound, try_recovery);
if (status)
goto out;
if (compound_error(status = compound.res.status))
goto out;
AcquireSRWLockShared(&file->path->lock);
nfs41_name_cache_delegreturn(session_name_cache(session),
file->fh.fileid, file->path->path, &file->name);
ReleaseSRWLockShared(&file->path->lock);
out:
return status;
}
enum nfsstat4 nfs41_fs_locations(
IN nfs41_session *session,
IN nfs41_path_fh *parent,
IN const nfs41_component *name,
OUT fs_locations4 *locations)
{
enum nfsstat4 status;
nfs41_compound compound;
nfs_argop4 argops[4];
nfs_resop4 resops[4];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args putfh_args;
nfs41_putfh_res putfh_res;
nfs41_lookup_args lookup_args;
nfs41_lookup_res lookup_res;
nfs41_getattr_args getattr_args;
nfs41_getattr_res getattr_res;
bitmap4 attr_request = { 1, { FATTR4_WORD0_FS_LOCATIONS } };
nfs41_file_info info;
compound_init(&compound, argops, resops, "fs_locations");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 0);
compound_add_op(&compound, OP_PUTFH, &putfh_args, &putfh_res);
putfh_args.file = parent;
putfh_args.in_recovery = 0;
compound_add_op(&compound, OP_LOOKUP, &lookup_args, &lookup_res);
lookup_args.name = name;
compound_add_op(&compound, OP_GETATTR, &getattr_args, &getattr_res);
getattr_args.attr_request = &attr_request;
info.fs_locations = locations;
getattr_res.obj_attributes.attr_vals_len = NFS4_OPAQUE_LIMIT;
getattr_res.info = &info;
status = compound_encode_send_decode(session, &compound, TRUE);
if (status)
goto out;
compound_error(status = compound.res.status);
out:
return status;
}
int nfs41_secinfo(
IN nfs41_session *session,
IN nfs41_path_fh *file,
IN const nfs41_component *name,
OUT nfs41_secinfo_info *secinfo)
{
int status;
nfs41_compound compound;
nfs_argop4 argops[3];
nfs_resop4 resops[3];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args putfh_args;
nfs41_putfh_res putfh_res;
nfs41_secinfo_args secinfo_args;
nfs41_secinfo_noname_res secinfo_res;
compound_init(&compound, argops, resops, "secinfo");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 0);
if (file == NULL)
compound_add_op(&compound, OP_PUTROOTFH, NULL, &putfh_res);
else {
compound_add_op(&compound, OP_PUTFH, &putfh_args, &putfh_res);
putfh_args.file = file;
putfh_args.in_recovery = 0;
}
compound_add_op(&compound, OP_SECINFO, &secinfo_args, &secinfo_res);
secinfo_args.name = name;
secinfo_res.secinfo = secinfo;
status = compound_encode_send_decode(session, &compound, FALSE);
if (status)
goto out;
compound_error(status = compound.res.status);
out:
return status;
}
int nfs41_secinfo_noname(
IN nfs41_session *session,
IN nfs41_path_fh *file,
OUT nfs41_secinfo_info *secinfo)
{
int status;
nfs41_compound compound;
nfs_argop4 argops[3];
nfs_resop4 resops[3];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args putfh_args;
nfs41_putfh_res putfh_res;
nfs41_secinfo_noname_args noname_args;
nfs41_secinfo_noname_res noname_res;
compound_init(&compound, argops, resops, "secinfo_no_name");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 0);
if (file == NULL)
compound_add_op(&compound, OP_PUTROOTFH, NULL, &putfh_res);
else {
compound_add_op(&compound, OP_PUTFH, &putfh_args, &putfh_res);
putfh_args.file = file;
putfh_args.in_recovery = 0;
}
compound_add_op(&compound, OP_SECINFO_NO_NAME, &noname_args, &noname_res);
noname_args.type = SECINFO_STYLE4_CURRENT_FH;
noname_res.secinfo = secinfo;
status = compound_encode_send_decode(session, &compound, FALSE);
if (status)
goto out;
compound_error(status = compound.res.status);
out:
return status;
}
enum nfsstat4 nfs41_free_stateid(
IN nfs41_session *session,
IN stateid4 *stateid)
{
enum nfsstat4 status;
nfs41_compound compound;
nfs_argop4 argops[2];
nfs_resop4 resops[2];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_free_stateid_args freestateid_args;
nfs41_free_stateid_res freestateid_res;
compound_init(&compound, argops, resops, "free_stateid");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 0);
compound_add_op(&compound, OP_FREE_STATEID, &freestateid_args, &freestateid_res);
freestateid_args.stateid = stateid;
status = compound_encode_send_decode(session, &compound, FALSE);
if (status)
goto out;
compound_error(status = compound.res.status);
out:
return status;
}
enum nfsstat4 nfs41_test_stateid(
IN nfs41_session *session,
IN stateid_arg *stateid_array,
IN uint32_t count,
OUT uint32_t *status_array)
{
enum nfsstat4 status;
nfs41_compound compound;
nfs_argop4 argops[2];
nfs_resop4 resops[2];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_test_stateid_args teststateid_args;
nfs41_test_stateid_res teststateid_res;
compound_init(&compound, argops, resops, "test_stateid");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 0);
compound_add_op(&compound, OP_TEST_STATEID, &teststateid_args, &teststateid_res);
teststateid_args.stateids = stateid_array;
teststateid_args.count = count;
teststateid_res.resok.status = status_array;
teststateid_res.resok.count = count;
status = compound_encode_send_decode(session, &compound, FALSE);
if (status)
goto out;
compound_error(status = compound.res.status);
out:
return status;
}
enum nfsstat4 pnfs_rpc_layoutget(
IN nfs41_session *session,
IN nfs41_path_fh *file,
IN stateid_arg *stateid,
IN enum pnfs_iomode iomode,
IN uint64_t offset,
IN uint64_t minlength,
IN uint64_t length,
OUT pnfs_layoutget_res_ok *layoutget_res_ok)
{
enum nfsstat4 status;
nfs41_compound compound;
nfs_argop4 argops[3];
nfs_resop4 resops[3];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args putfh_args;
nfs41_putfh_res putfh_res;
pnfs_layoutget_args layoutget_args;
pnfs_layoutget_res layoutget_res = { 0 };
uint32_t i;
struct list_entry *entry;
compound_init(&compound, argops, resops, "layoutget");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 0);
compound_add_op(&compound, OP_PUTFH, &putfh_args, &putfh_res);
putfh_args.file = file;
putfh_args.in_recovery = 0;
compound_add_op(&compound, OP_LAYOUTGET, &layoutget_args, &layoutget_res);
layoutget_args.signal_layout_avail = 0;
layoutget_args.layout_type = PNFS_LAYOUTTYPE_FILE;
layoutget_args.iomode = iomode;
layoutget_args.offset = offset;
layoutget_args.minlength = minlength;
layoutget_args.length = length;
layoutget_args.stateid = stateid;
layoutget_args.maxcount = session->fore_chan_attrs.ca_maxresponsesize - READ_OVERHEAD;
layoutget_res.u.res_ok = layoutget_res_ok;
status = compound_encode_send_decode(session, &compound, TRUE);
if (status)
goto out;
if (compound_error(status = compound.res.status))
goto out;
/* point each file handle to the meta server's superblock */
list_for_each(entry, &layoutget_res_ok->layouts) {
pnfs_layout *base = list_container(entry, pnfs_layout, entry);
if (base->type == PNFS_LAYOUTTYPE_FILE) {
pnfs_file_layout *layout = (pnfs_file_layout*)base;
for (i = 0; i < layout->filehandles.count; i++)
layout->filehandles.arr[i].fh.superblock = file->fh.superblock;
}
}
out:
return status;
}
enum nfsstat4 pnfs_rpc_layoutcommit(
IN nfs41_session *session,
IN nfs41_path_fh *file,
IN stateid4 *stateid,
IN uint64_t offset,
IN uint64_t length,
IN OPTIONAL uint64_t *new_last_offset,
IN OPTIONAL nfstime4 *new_time_modify,
OUT nfs41_file_info *info)
{
enum nfsstat4 status;
nfs41_compound compound;
nfs_argop4 argops[4];
nfs_resop4 resops[4];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args putfh_args;
nfs41_putfh_res putfh_res;
pnfs_layoutcommit_args lc_args;
pnfs_layoutcommit_res lc_res;
nfs41_getattr_args getattr_args;
nfs41_getattr_res getattr_res;
bitmap4 attr_request;
nfs41_superblock_getattr_mask(file->fh.superblock, &attr_request);
compound_init(&compound, argops, resops, "layoutcommit");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 0);
compound_add_op(&compound, OP_PUTFH, &putfh_args, &putfh_res);
putfh_args.file = file;
putfh_args.in_recovery = 0;
compound_add_op(&compound, OP_LAYOUTCOMMIT, &lc_args, &lc_res);
lc_args.offset = offset;
lc_args.length = length;
lc_args.stateid = stateid;
lc_args.new_time = new_time_modify;
lc_args.new_offset = new_last_offset;
compound_add_op(&compound, OP_GETATTR, &getattr_args, &getattr_res);
getattr_args.attr_request = &attr_request;
getattr_res.obj_attributes.attr_vals_len = NFS4_OPAQUE_LIMIT;
getattr_res.info = info;
status = compound_encode_send_decode(session, &compound, TRUE);
if (status)
goto out;
if (compound_error(status = compound.res.status))
goto out;
/* update the attribute cache */
memcpy(&info->attrmask, &getattr_res.obj_attributes.attrmask,
sizeof(bitmap4));
nfs41_attr_cache_update(session_name_cache(session),
file->fh.fileid, info);
out:
return status;
}
enum nfsstat4 pnfs_rpc_layoutreturn(
IN nfs41_session *session,
IN nfs41_path_fh *file,
IN enum pnfs_layout_type type,
IN enum pnfs_iomode iomode,
IN uint64_t offset,
IN uint64_t length,
IN stateid4 *stateid,
OUT pnfs_layoutreturn_res *layoutreturn_res)
{
enum nfsstat4 status;
nfs41_compound compound;
nfs_argop4 argops[3];
nfs_resop4 resops[3];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args putfh_args;
nfs41_putfh_res putfh_res;
pnfs_layoutreturn_args layoutreturn_args;
compound_init(&compound, argops, resops, "layoutreturn");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 0);
compound_add_op(&compound, OP_PUTFH, &putfh_args, &putfh_res);
putfh_args.file = file;
putfh_args.in_recovery = 0;
compound_add_op(&compound, OP_LAYOUTRETURN, &layoutreturn_args, layoutreturn_res);
layoutreturn_args.reclaim = 0;
layoutreturn_args.type = type;
layoutreturn_args.iomode = iomode;
layoutreturn_args.return_type = PNFS_RETURN_FILE;
layoutreturn_args.offset = offset;
layoutreturn_args.length = length;
layoutreturn_args.stateid = stateid;
status = compound_encode_send_decode(session, &compound, TRUE);
if (status)
goto out;
compound_error(status = compound.res.status);
out:
return status;
}
enum nfsstat4 pnfs_rpc_getdeviceinfo(
IN nfs41_session *session,
IN unsigned char *deviceid,
OUT pnfs_file_device *device)
{
enum nfsstat4 status;
nfs41_compound compound;
nfs_argop4 argops[2];
nfs_resop4 resops[2];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
pnfs_getdeviceinfo_args getdeviceinfo_args;
pnfs_getdeviceinfo_res getdeviceinfo_res;
compound_init(&compound, argops, resops, "get_deviceinfo");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 0);
compound_add_op(&compound, OP_GETDEVICEINFO,
&getdeviceinfo_args, &getdeviceinfo_res);
getdeviceinfo_args.deviceid = deviceid;
getdeviceinfo_args.layout_type = PNFS_LAYOUTTYPE_FILE;
getdeviceinfo_args.maxcount = NFS41_MAX_SERVER_CACHE; /* XXX */
getdeviceinfo_args.notify_types.count = 0;
getdeviceinfo_res.u.res_ok.device = device;
status = compound_encode_send_decode(session, &compound, TRUE);
if (status)
goto out;
compound_error(status = compound.res.status);
out:
return status;
}
enum nfsstat4 nfs41_rpc_openattr(
IN nfs41_session *session,
IN nfs41_path_fh *file,
IN bool_t createdir,
OUT nfs41_fh *fh_out)
{
enum nfsstat4 status;
nfs41_compound compound;
nfs_argop4 argops[4];
nfs_resop4 resops[4];
nfs41_sequence_args sequence_args;
nfs41_sequence_res sequence_res;
nfs41_putfh_args putfh_args;
nfs41_putfh_res putfh_res;
nfs41_openattr_args openattr_args;
nfs41_openattr_res openattr_res;
nfs41_getfh_res getfh_res;
compound_init(&compound, argops, resops, "openattr");
compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
nfs41_session_sequence(&sequence_args, session, 0);
compound_add_op(&compound, OP_PUTFH, &putfh_args, &putfh_res);
putfh_args.file = file;
putfh_args.in_recovery = FALSE;
compound_add_op(&compound, OP_OPENATTR, &openattr_args, &openattr_res);
openattr_args.createdir = createdir;
compound_add_op(&compound, OP_GETFH, NULL, &getfh_res);
getfh_res.fh = fh_out;
status = compound_encode_send_decode(session, &compound, TRUE);
if (status)
goto out;
compound_error(status = compound.res.status);
fh_out->superblock = file->fh.superblock;
out:
return status;
}
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